Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
bce50a28 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
b2a8e766 | 3 | Free Software Foundation, Inc. |
5bd4f169 AM |
4 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
5 | based on elf32-ppc.c by Ian Lance Taylor. | |
d37c89e5 | 6 | Largely rewritten by Alan Modra <amodra@bigpond.net.au> |
5bd4f169 | 7 | |
ae9a127f | 8 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 9 | |
ae9a127f NC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
5bd4f169 | 14 | |
ae9a127f NC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
5bd4f169 | 19 | |
4ce794b7 AM |
20 | You should have received a copy of the GNU General Public License along |
21 | with this program; if not, write to the Free Software Foundation, Inc., | |
3e110533 | 22 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
5bd4f169 | 23 | |
4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
5bd4f169 AM |
27 | |
28 | #include "bfd.h" | |
29 | #include "sysdep.h" | |
30 | #include "bfdlink.h" | |
31 | #include "libbfd.h" | |
32 | #include "elf-bfd.h" | |
04c9666a | 33 | #include "elf/ppc64.h" |
5d1634d7 | 34 | #include "elf64-ppc.h" |
5bd4f169 | 35 | |
805fc799 | 36 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
4ce794b7 | 37 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
2441e016 AM |
38 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
805fc799 | 40 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
4ce794b7 | 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
2441e016 AM |
54 | static bfd_vma opd_entry_value |
55 | (asection *, bfd_vma, asection **, bfd_vma *); | |
5bd4f169 | 56 | |
ad8e1ba5 AM |
57 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
58 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
59 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
60 | #define TARGET_BIG_NAME "elf64-powerpc" | |
61 | #define ELF_ARCH bfd_arch_powerpc | |
62 | #define ELF_MACHINE_CODE EM_PPC64 | |
63 | #define ELF_MAXPAGESIZE 0x10000 | |
64 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
65 | ||
66 | #define elf_backend_want_got_sym 0 | |
67 | #define elf_backend_want_plt_sym 0 | |
68 | #define elf_backend_plt_alignment 3 | |
69 | #define elf_backend_plt_not_loaded 1 | |
ad8e1ba5 | 70 | #define elf_backend_got_header_size 8 |
ad8e1ba5 AM |
71 | #define elf_backend_can_gc_sections 1 |
72 | #define elf_backend_can_refcount 1 | |
73 | #define elf_backend_rela_normal 1 | |
74 | ||
e717da7e | 75 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
ad8e1ba5 AM |
76 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
77 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
78 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
79 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
80 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
90e3cdf2 | 81 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
ad8e1ba5 AM |
82 | |
83 | #define elf_backend_object_p ppc64_elf_object_p | |
d37c89e5 AM |
84 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
85 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
ad8e1ba5 AM |
86 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
87 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
555cd476 | 88 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
8387904d AM |
89 | #define elf_backend_check_directives ppc64_elf_check_directives |
90 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup | |
ad8e1ba5 | 91 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
64d03ab5 | 92 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
ad8e1ba5 AM |
93 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
94 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
95 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
96 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
97 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
98 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
60124e18 | 99 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
ad8e1ba5 AM |
100 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
101 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
102 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
103 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
754021d0 | 104 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
29ef7005 | 105 | #define elf_backend_special_sections ppc64_elf_special_sections |
ad8e1ba5 | 106 | |
5bd4f169 AM |
107 | /* The name of the dynamic interpreter. This is put in the .interp |
108 | section. */ | |
109 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
110 | ||
111 | /* The size in bytes of an entry in the procedure linkage table. */ | |
112 | #define PLT_ENTRY_SIZE 24 | |
113 | ||
114 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 115 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
116 | |
117 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
118 | #define TOC_BASE_OFF 0x8000 |
119 | ||
120 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
121 | #define TP_OFFSET 0x7000 | |
122 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 123 | |
ad8e1ba5 AM |
124 | /* .plt call stub instructions. The normal stub is like this, but |
125 | sometimes the .plt entry crosses a 64k boundary and we need to | |
126 | insert an addis to adjust r12. */ | |
127 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
128 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
129 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
130 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
131 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
132 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
133 | /* ld %r11,xxx+16@l(%r12) */ | |
134 | #define BCTR 0x4e800420 /* bctr */ | |
135 | ||
5d1634d7 | 136 | |
ad8e1ba5 AM |
137 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
138 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
139 | ||
140 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
141 | ||
142 | /* glink call stub instructions. We enter with the index in R0, and the | |
143 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
144 | #define GLINK_CALL_STUB_SIZE (16*4) | |
145 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
146 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
147 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
148 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
149 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
150 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
151 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
152 | /* sub %r12,%r12,%r11 */ | |
153 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
154 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
155 | /* ld %r11,xxx@l(%r12) */ | |
156 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
157 | /* ld %r2,8(%r12) */ | |
158 | /* mtctr %r11 */ | |
159 | /* ld %r11,16(%r12) */ | |
160 | /* bctr */ | |
5d1634d7 AM |
161 | |
162 | /* Pad with this. */ | |
163 | #define NOP 0x60000000 | |
164 | ||
721956f4 AM |
165 | /* Some other nops. */ |
166 | #define CROR_151515 0x4def7b82 | |
167 | #define CROR_313131 0x4ffffb82 | |
168 | ||
cedb70c5 | 169 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
170 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
171 | #define B_DOT 0x48000000 /* b . */ | |
172 | ||
173 | /* After that, we need two instructions to load the index, followed by | |
174 | a branch. */ | |
175 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 176 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 177 | |
deb0e272 AM |
178 | /* Instructions used by the save and restore reg functions. */ |
179 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
180 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
181 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
182 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
82bd7b59 AM |
183 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
184 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
deb0e272 AM |
185 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
186 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
187 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
188 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
82bd7b59 AM |
189 | #define BLR 0x4e800020 /* blr */ |
190 | ||
41bd81ab AM |
191 | /* Since .opd is an array of descriptors and each entry will end up |
192 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
193 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 194 | relocate .opd without reloc entries. */ |
41bd81ab AM |
195 | #ifndef NO_OPD_RELOCS |
196 | #define NO_OPD_RELOCS 0 | |
197 | #endif | |
5bd4f169 | 198 | \f |
f5e87a1d | 199 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 200 | |
5bd4f169 | 201 | /* Relocation HOWTO's. */ |
04c9666a | 202 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
203 | |
204 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
205 | /* This reloc does nothing. */ | |
206 | HOWTO (R_PPC64_NONE, /* type */ | |
207 | 0, /* rightshift */ | |
411e1bfb AM |
208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
209 | 32, /* bitsize */ | |
b34976b6 | 210 | FALSE, /* pc_relative */ |
5bd4f169 | 211 | 0, /* bitpos */ |
f5e87a1d | 212 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
213 | bfd_elf_generic_reloc, /* special_function */ |
214 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 215 | FALSE, /* partial_inplace */ |
d006db6c | 216 | 0, /* src_mask */ |
5bd4f169 | 217 | 0, /* dst_mask */ |
b34976b6 | 218 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
219 | |
220 | /* A standard 32 bit relocation. */ | |
221 | HOWTO (R_PPC64_ADDR32, /* type */ | |
222 | 0, /* rightshift */ | |
223 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
224 | 32, /* bitsize */ | |
b34976b6 | 225 | FALSE, /* pc_relative */ |
5bd4f169 AM |
226 | 0, /* bitpos */ |
227 | complain_overflow_bitfield, /* complain_on_overflow */ | |
228 | bfd_elf_generic_reloc, /* special_function */ | |
229 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 230 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
231 | 0, /* src_mask */ |
232 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 233 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
234 | |
235 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
236 | FIXME: we don't check that, we just clear them. */ | |
237 | HOWTO (R_PPC64_ADDR24, /* type */ | |
238 | 0, /* rightshift */ | |
239 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
240 | 26, /* bitsize */ | |
b34976b6 | 241 | FALSE, /* pc_relative */ |
5bd4f169 AM |
242 | 0, /* bitpos */ |
243 | complain_overflow_bitfield, /* complain_on_overflow */ | |
244 | bfd_elf_generic_reloc, /* special_function */ | |
245 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 246 | FALSE, /* partial_inplace */ |
d006db6c | 247 | 0, /* src_mask */ |
f5e87a1d | 248 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 249 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
250 | |
251 | /* A standard 16 bit relocation. */ | |
252 | HOWTO (R_PPC64_ADDR16, /* type */ | |
253 | 0, /* rightshift */ | |
254 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
255 | 16, /* bitsize */ | |
b34976b6 | 256 | FALSE, /* pc_relative */ |
5bd4f169 AM |
257 | 0, /* bitpos */ |
258 | complain_overflow_bitfield, /* complain_on_overflow */ | |
259 | bfd_elf_generic_reloc, /* special_function */ | |
260 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 261 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
262 | 0, /* src_mask */ |
263 | 0xffff, /* dst_mask */ | |
b34976b6 | 264 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
265 | |
266 | /* A 16 bit relocation without overflow. */ | |
267 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
268 | 0, /* rightshift */ | |
269 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
270 | 16, /* bitsize */ | |
b34976b6 | 271 | FALSE, /* pc_relative */ |
5bd4f169 AM |
272 | 0, /* bitpos */ |
273 | complain_overflow_dont,/* complain_on_overflow */ | |
274 | bfd_elf_generic_reloc, /* special_function */ | |
275 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 276 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
277 | 0, /* src_mask */ |
278 | 0xffff, /* dst_mask */ | |
b34976b6 | 279 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
280 | |
281 | /* Bits 16-31 of an address. */ | |
282 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
283 | 16, /* rightshift */ | |
284 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
285 | 16, /* bitsize */ | |
b34976b6 | 286 | FALSE, /* pc_relative */ |
5bd4f169 AM |
287 | 0, /* bitpos */ |
288 | complain_overflow_dont, /* complain_on_overflow */ | |
289 | bfd_elf_generic_reloc, /* special_function */ | |
290 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 291 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
292 | 0, /* src_mask */ |
293 | 0xffff, /* dst_mask */ | |
b34976b6 | 294 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
295 | |
296 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
297 | bits, treated as a signed number, is negative. */ | |
298 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
299 | 16, /* rightshift */ | |
300 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
301 | 16, /* bitsize */ | |
b34976b6 | 302 | FALSE, /* pc_relative */ |
5bd4f169 AM |
303 | 0, /* bitpos */ |
304 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 305 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 306 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 307 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
308 | 0, /* src_mask */ |
309 | 0xffff, /* dst_mask */ | |
b34976b6 | 310 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
311 | |
312 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
313 | FIXME: we don't check that, we just clear them. */ | |
314 | HOWTO (R_PPC64_ADDR14, /* type */ | |
315 | 0, /* rightshift */ | |
316 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
317 | 16, /* bitsize */ | |
b34976b6 | 318 | FALSE, /* pc_relative */ |
5bd4f169 AM |
319 | 0, /* bitpos */ |
320 | complain_overflow_bitfield, /* complain_on_overflow */ | |
2441e016 | 321 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 322 | "R_PPC64_ADDR14", /* name */ |
b34976b6 | 323 | FALSE, /* partial_inplace */ |
d006db6c | 324 | 0, /* src_mask */ |
f5e87a1d | 325 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 326 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
327 | |
328 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
329 | indicate that the branch is expected to be taken. The lower two | |
330 | bits must be zero. */ | |
331 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
332 | 0, /* rightshift */ | |
333 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
334 | 16, /* bitsize */ | |
b34976b6 | 335 | FALSE, /* pc_relative */ |
5bd4f169 AM |
336 | 0, /* bitpos */ |
337 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 338 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 339 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 340 | FALSE, /* partial_inplace */ |
d006db6c | 341 | 0, /* src_mask */ |
f5e87a1d | 342 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 343 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
344 | |
345 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
346 | indicate that the branch is not expected to be taken. The lower | |
347 | two bits must be zero. */ | |
348 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
349 | 0, /* rightshift */ | |
350 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
351 | 16, /* bitsize */ | |
b34976b6 | 352 | FALSE, /* pc_relative */ |
5bd4f169 AM |
353 | 0, /* bitpos */ |
354 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 355 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 356 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 357 | FALSE, /* partial_inplace */ |
d006db6c | 358 | 0, /* src_mask */ |
f5e87a1d | 359 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 360 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
361 | |
362 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
363 | HOWTO (R_PPC64_REL24, /* type */ | |
364 | 0, /* rightshift */ | |
365 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
366 | 26, /* bitsize */ | |
b34976b6 | 367 | TRUE, /* pc_relative */ |
5bd4f169 AM |
368 | 0, /* bitpos */ |
369 | complain_overflow_signed, /* complain_on_overflow */ | |
2441e016 | 370 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 371 | "R_PPC64_REL24", /* name */ |
b34976b6 | 372 | FALSE, /* partial_inplace */ |
d006db6c | 373 | 0, /* src_mask */ |
f5e87a1d | 374 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 375 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
376 | |
377 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
378 | HOWTO (R_PPC64_REL14, /* type */ | |
379 | 0, /* rightshift */ | |
380 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
381 | 16, /* bitsize */ | |
b34976b6 | 382 | TRUE, /* pc_relative */ |
5bd4f169 AM |
383 | 0, /* bitpos */ |
384 | complain_overflow_signed, /* complain_on_overflow */ | |
2441e016 | 385 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 386 | "R_PPC64_REL14", /* name */ |
b34976b6 | 387 | FALSE, /* partial_inplace */ |
d006db6c | 388 | 0, /* src_mask */ |
f5e87a1d | 389 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 390 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
391 | |
392 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
393 | the branch is expected to be taken. The lower two bits must be | |
394 | zero. */ | |
395 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
396 | 0, /* rightshift */ | |
397 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
398 | 16, /* bitsize */ | |
b34976b6 | 399 | TRUE, /* pc_relative */ |
5bd4f169 AM |
400 | 0, /* bitpos */ |
401 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 402 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 403 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 404 | FALSE, /* partial_inplace */ |
d006db6c | 405 | 0, /* src_mask */ |
f5e87a1d | 406 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 407 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
408 | |
409 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
410 | the branch is not expected to be taken. The lower two bits must | |
411 | be zero. */ | |
412 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
413 | 0, /* rightshift */ | |
414 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
415 | 16, /* bitsize */ | |
b34976b6 | 416 | TRUE, /* pc_relative */ |
5bd4f169 AM |
417 | 0, /* bitpos */ |
418 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 419 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 420 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 421 | FALSE, /* partial_inplace */ |
d006db6c | 422 | 0, /* src_mask */ |
f5e87a1d | 423 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 424 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
425 | |
426 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
427 | symbol. */ | |
428 | HOWTO (R_PPC64_GOT16, /* type */ | |
429 | 0, /* rightshift */ | |
430 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
431 | 16, /* bitsize */ | |
b34976b6 | 432 | FALSE, /* pc_relative */ |
5bd4f169 AM |
433 | 0, /* bitpos */ |
434 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 435 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 436 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 437 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
438 | 0, /* src_mask */ |
439 | 0xffff, /* dst_mask */ | |
b34976b6 | 440 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
441 | |
442 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
443 | the symbol. */ | |
444 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
445 | 0, /* rightshift */ | |
446 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
447 | 16, /* bitsize */ | |
b34976b6 | 448 | FALSE, /* pc_relative */ |
5bd4f169 AM |
449 | 0, /* bitpos */ |
450 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 451 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 452 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 453 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
454 | 0, /* src_mask */ |
455 | 0xffff, /* dst_mask */ | |
b34976b6 | 456 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
457 | |
458 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
459 | the symbol. */ | |
460 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
461 | 16, /* rightshift */ | |
462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
463 | 16, /* bitsize */ | |
b34976b6 | 464 | FALSE, /* pc_relative */ |
5bd4f169 AM |
465 | 0, /* bitpos */ |
466 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 467 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 468 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 469 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
470 | 0, /* src_mask */ |
471 | 0xffff, /* dst_mask */ | |
b34976b6 | 472 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
473 | |
474 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
475 | the symbol. */ | |
476 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
477 | 16, /* rightshift */ | |
478 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
479 | 16, /* bitsize */ | |
b34976b6 | 480 | FALSE, /* pc_relative */ |
5bd4f169 AM |
481 | 0, /* bitpos */ |
482 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 483 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 484 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 485 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
486 | 0, /* src_mask */ |
487 | 0xffff, /* dst_mask */ | |
b34976b6 | 488 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
489 | |
490 | /* This is used only by the dynamic linker. The symbol should exist | |
491 | both in the object being run and in some shared library. The | |
492 | dynamic linker copies the data addressed by the symbol from the | |
493 | shared library into the object, because the object being | |
494 | run has to have the data at some particular address. */ | |
495 | HOWTO (R_PPC64_COPY, /* type */ | |
496 | 0, /* rightshift */ | |
f5e87a1d AM |
497 | 0, /* this one is variable size */ |
498 | 0, /* bitsize */ | |
b34976b6 | 499 | FALSE, /* pc_relative */ |
5bd4f169 | 500 | 0, /* bitpos */ |
f5e87a1d AM |
501 | complain_overflow_dont, /* complain_on_overflow */ |
502 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 503 | "R_PPC64_COPY", /* name */ |
b34976b6 | 504 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
505 | 0, /* src_mask */ |
506 | 0, /* dst_mask */ | |
b34976b6 | 507 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
508 | |
509 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
510 | entries. */ | |
511 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
512 | 0, /* rightshift */ | |
513 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
514 | 64, /* bitsize */ | |
b34976b6 | 515 | FALSE, /* pc_relative */ |
5bd4f169 AM |
516 | 0, /* bitpos */ |
517 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 518 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 519 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 520 | FALSE, /* partial_inplace */ |
5bd4f169 | 521 | 0, /* src_mask */ |
f5e87a1d | 522 | ONES (64), /* dst_mask */ |
b34976b6 | 523 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
524 | |
525 | /* Created by the link editor. Marks a procedure linkage table | |
526 | entry for a symbol. */ | |
527 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
528 | 0, /* rightshift */ | |
529 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
530 | 0, /* bitsize */ | |
b34976b6 | 531 | FALSE, /* pc_relative */ |
5bd4f169 AM |
532 | 0, /* bitpos */ |
533 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 534 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 535 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 536 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
537 | 0, /* src_mask */ |
538 | 0, /* dst_mask */ | |
b34976b6 | 539 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
540 | |
541 | /* Used only by the dynamic linker. When the object is run, this | |
542 | doubleword64 is set to the load address of the object, plus the | |
543 | addend. */ | |
544 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
545 | 0, /* rightshift */ | |
546 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
547 | 64, /* bitsize */ | |
b34976b6 | 548 | FALSE, /* pc_relative */ |
5bd4f169 AM |
549 | 0, /* bitpos */ |
550 | complain_overflow_dont, /* complain_on_overflow */ | |
551 | bfd_elf_generic_reloc, /* special_function */ | |
552 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 553 | FALSE, /* partial_inplace */ |
5bd4f169 | 554 | 0, /* src_mask */ |
f5e87a1d | 555 | ONES (64), /* dst_mask */ |
b34976b6 | 556 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
557 | |
558 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
559 | HOWTO (R_PPC64_UADDR32, /* type */ | |
560 | 0, /* rightshift */ | |
561 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
562 | 32, /* bitsize */ | |
b34976b6 | 563 | FALSE, /* pc_relative */ |
5bd4f169 AM |
564 | 0, /* bitpos */ |
565 | complain_overflow_bitfield, /* complain_on_overflow */ | |
566 | bfd_elf_generic_reloc, /* special_function */ | |
567 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 568 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
569 | 0, /* src_mask */ |
570 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 571 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
572 | |
573 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
574 | HOWTO (R_PPC64_UADDR16, /* type */ | |
575 | 0, /* rightshift */ | |
576 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
577 | 16, /* bitsize */ | |
b34976b6 | 578 | FALSE, /* pc_relative */ |
5bd4f169 AM |
579 | 0, /* bitpos */ |
580 | complain_overflow_bitfield, /* complain_on_overflow */ | |
581 | bfd_elf_generic_reloc, /* special_function */ | |
582 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 583 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
584 | 0, /* src_mask */ |
585 | 0xffff, /* dst_mask */ | |
b34976b6 | 586 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
587 | |
588 | /* 32-bit PC relative. */ | |
589 | HOWTO (R_PPC64_REL32, /* type */ | |
590 | 0, /* rightshift */ | |
591 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
592 | 32, /* bitsize */ | |
b34976b6 | 593 | TRUE, /* pc_relative */ |
5bd4f169 | 594 | 0, /* bitpos */ |
cedb70c5 | 595 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
596 | complain_overflow_signed, /* complain_on_overflow */ |
597 | bfd_elf_generic_reloc, /* special_function */ | |
598 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 599 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
600 | 0, /* src_mask */ |
601 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 602 | TRUE), /* pcrel_offset */ |
5bd4f169 | 603 | |
10ed1bba | 604 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
605 | HOWTO (R_PPC64_PLT32, /* type */ |
606 | 0, /* rightshift */ | |
607 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
608 | 32, /* bitsize */ | |
b34976b6 | 609 | FALSE, /* pc_relative */ |
5bd4f169 AM |
610 | 0, /* bitpos */ |
611 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 612 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 613 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 614 | FALSE, /* partial_inplace */ |
5bd4f169 | 615 | 0, /* src_mask */ |
f5e87a1d | 616 | 0xffffffff, /* dst_mask */ |
b34976b6 | 617 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
618 | |
619 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
620 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
621 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
622 | 0, /* rightshift */ | |
623 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
624 | 32, /* bitsize */ | |
b34976b6 | 625 | TRUE, /* pc_relative */ |
5bd4f169 AM |
626 | 0, /* bitpos */ |
627 | complain_overflow_signed, /* complain_on_overflow */ | |
628 | bfd_elf_generic_reloc, /* special_function */ | |
629 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 630 | FALSE, /* partial_inplace */ |
5bd4f169 | 631 | 0, /* src_mask */ |
f5e87a1d | 632 | 0xffffffff, /* dst_mask */ |
b34976b6 | 633 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
634 | |
635 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
636 | the symbol. */ | |
637 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
638 | 0, /* rightshift */ | |
639 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 16, /* bitsize */ | |
b34976b6 | 641 | FALSE, /* pc_relative */ |
5bd4f169 AM |
642 | 0, /* bitpos */ |
643 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 644 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 645 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 646 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
647 | 0, /* src_mask */ |
648 | 0xffff, /* dst_mask */ | |
b34976b6 | 649 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
650 | |
651 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
652 | the symbol. */ | |
653 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
654 | 16, /* rightshift */ | |
655 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
656 | 16, /* bitsize */ | |
b34976b6 | 657 | FALSE, /* pc_relative */ |
5bd4f169 AM |
658 | 0, /* bitpos */ |
659 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 660 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 661 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 662 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
663 | 0, /* src_mask */ |
664 | 0xffff, /* dst_mask */ | |
b34976b6 | 665 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
666 | |
667 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
668 | the symbol. */ | |
669 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
670 | 16, /* rightshift */ | |
671 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
672 | 16, /* bitsize */ | |
b34976b6 | 673 | FALSE, /* pc_relative */ |
5bd4f169 AM |
674 | 0, /* bitpos */ |
675 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 676 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 677 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 678 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
679 | 0, /* src_mask */ |
680 | 0xffff, /* dst_mask */ | |
b34976b6 | 681 | FALSE), /* pcrel_offset */ |
5bd4f169 | 682 | |
c061c2d8 | 683 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
684 | HOWTO (R_PPC64_SECTOFF, /* type */ |
685 | 0, /* rightshift */ | |
c061c2d8 AM |
686 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
687 | 16, /* bitsize */ | |
b34976b6 | 688 | FALSE, /* pc_relative */ |
5bd4f169 AM |
689 | 0, /* bitpos */ |
690 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 691 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 692 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 693 | FALSE, /* partial_inplace */ |
5bd4f169 | 694 | 0, /* src_mask */ |
c061c2d8 | 695 | 0xffff, /* dst_mask */ |
b34976b6 | 696 | FALSE), /* pcrel_offset */ |
5bd4f169 | 697 | |
c061c2d8 | 698 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
699 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
700 | 0, /* rightshift */ | |
701 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
702 | 16, /* bitsize */ | |
b34976b6 | 703 | FALSE, /* pc_relative */ |
5bd4f169 AM |
704 | 0, /* bitpos */ |
705 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 706 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 707 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 708 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
709 | 0, /* src_mask */ |
710 | 0xffff, /* dst_mask */ | |
b34976b6 | 711 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
712 | |
713 | /* 16-bit upper half section relative relocation. */ | |
714 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
715 | 16, /* rightshift */ | |
716 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
717 | 16, /* bitsize */ | |
b34976b6 | 718 | FALSE, /* pc_relative */ |
5bd4f169 AM |
719 | 0, /* bitpos */ |
720 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 721 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 722 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 723 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
724 | 0, /* src_mask */ |
725 | 0xffff, /* dst_mask */ | |
b34976b6 | 726 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
727 | |
728 | /* 16-bit upper half adjusted section relative relocation. */ | |
729 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
730 | 16, /* rightshift */ | |
731 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
732 | 16, /* bitsize */ | |
b34976b6 | 733 | FALSE, /* pc_relative */ |
5bd4f169 AM |
734 | 0, /* bitpos */ |
735 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 736 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 737 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 738 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
739 | 0, /* src_mask */ |
740 | 0xffff, /* dst_mask */ | |
b34976b6 | 741 | FALSE), /* pcrel_offset */ |
5bd4f169 | 742 | |
04c9666a AM |
743 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
744 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
745 | 2, /* rightshift */ |
746 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
747 | 30, /* bitsize */ | |
b34976b6 | 748 | TRUE, /* pc_relative */ |
5bd4f169 AM |
749 | 0, /* bitpos */ |
750 | complain_overflow_dont, /* complain_on_overflow */ | |
751 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 752 | "R_PPC64_REL30", /* name */ |
b34976b6 | 753 | FALSE, /* partial_inplace */ |
d006db6c | 754 | 0, /* src_mask */ |
5bd4f169 | 755 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 756 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
757 | |
758 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
759 | ||
760 | /* A standard 64-bit relocation. */ | |
761 | HOWTO (R_PPC64_ADDR64, /* type */ | |
762 | 0, /* rightshift */ | |
763 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
764 | 64, /* bitsize */ | |
b34976b6 | 765 | FALSE, /* pc_relative */ |
5bd4f169 AM |
766 | 0, /* bitpos */ |
767 | complain_overflow_dont, /* complain_on_overflow */ | |
768 | bfd_elf_generic_reloc, /* special_function */ | |
769 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 770 | FALSE, /* partial_inplace */ |
5bd4f169 | 771 | 0, /* src_mask */ |
f5e87a1d | 772 | ONES (64), /* dst_mask */ |
b34976b6 | 773 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
774 | |
775 | /* The bits 32-47 of an address. */ | |
776 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
777 | 32, /* rightshift */ | |
778 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
779 | 16, /* bitsize */ | |
b34976b6 | 780 | FALSE, /* pc_relative */ |
5bd4f169 AM |
781 | 0, /* bitpos */ |
782 | complain_overflow_dont, /* complain_on_overflow */ | |
783 | bfd_elf_generic_reloc, /* special_function */ | |
784 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 785 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
786 | 0, /* src_mask */ |
787 | 0xffff, /* dst_mask */ | |
b34976b6 | 788 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
789 | |
790 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
791 | 16 bits, treated as a signed number, is negative. */ | |
792 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
793 | 32, /* rightshift */ | |
794 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
795 | 16, /* bitsize */ | |
b34976b6 | 796 | FALSE, /* pc_relative */ |
5bd4f169 AM |
797 | 0, /* bitpos */ |
798 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 799 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 800 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 801 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
802 | 0, /* src_mask */ |
803 | 0xffff, /* dst_mask */ | |
b34976b6 | 804 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
805 | |
806 | /* The bits 48-63 of an address. */ | |
807 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
808 | 48, /* rightshift */ | |
809 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
810 | 16, /* bitsize */ | |
b34976b6 | 811 | FALSE, /* pc_relative */ |
5bd4f169 AM |
812 | 0, /* bitpos */ |
813 | complain_overflow_dont, /* complain_on_overflow */ | |
814 | bfd_elf_generic_reloc, /* special_function */ | |
815 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 816 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
817 | 0, /* src_mask */ |
818 | 0xffff, /* dst_mask */ | |
b34976b6 | 819 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
820 | |
821 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
822 | 16 bits, treated as a signed number, is negative. */ | |
823 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
824 | 48, /* rightshift */ | |
825 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
826 | 16, /* bitsize */ | |
b34976b6 | 827 | FALSE, /* pc_relative */ |
5bd4f169 AM |
828 | 0, /* bitpos */ |
829 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 830 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 831 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 832 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
833 | 0, /* src_mask */ |
834 | 0xffff, /* dst_mask */ | |
b34976b6 | 835 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
836 | |
837 | /* Like ADDR64, but may be unaligned. */ | |
838 | HOWTO (R_PPC64_UADDR64, /* type */ | |
839 | 0, /* rightshift */ | |
840 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
841 | 64, /* bitsize */ | |
b34976b6 | 842 | FALSE, /* pc_relative */ |
5bd4f169 AM |
843 | 0, /* bitpos */ |
844 | complain_overflow_dont, /* complain_on_overflow */ | |
845 | bfd_elf_generic_reloc, /* special_function */ | |
846 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 847 | FALSE, /* partial_inplace */ |
5bd4f169 | 848 | 0, /* src_mask */ |
f5e87a1d | 849 | ONES (64), /* dst_mask */ |
b34976b6 | 850 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
851 | |
852 | /* 64-bit relative relocation. */ | |
853 | HOWTO (R_PPC64_REL64, /* type */ | |
854 | 0, /* rightshift */ | |
855 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
856 | 64, /* bitsize */ | |
b34976b6 | 857 | TRUE, /* pc_relative */ |
5bd4f169 AM |
858 | 0, /* bitpos */ |
859 | complain_overflow_dont, /* complain_on_overflow */ | |
860 | bfd_elf_generic_reloc, /* special_function */ | |
861 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 862 | FALSE, /* partial_inplace */ |
5bd4f169 | 863 | 0, /* src_mask */ |
f5e87a1d | 864 | ONES (64), /* dst_mask */ |
b34976b6 | 865 | TRUE), /* pcrel_offset */ |
5bd4f169 | 866 | |
cedb70c5 | 867 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
868 | HOWTO (R_PPC64_PLT64, /* type */ |
869 | 0, /* rightshift */ | |
870 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
871 | 64, /* bitsize */ | |
b34976b6 | 872 | FALSE, /* pc_relative */ |
5bd4f169 AM |
873 | 0, /* bitpos */ |
874 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 875 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 876 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 877 | FALSE, /* partial_inplace */ |
5bd4f169 | 878 | 0, /* src_mask */ |
f5e87a1d | 879 | ONES (64), /* dst_mask */ |
b34976b6 | 880 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
881 | |
882 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
883 | table. */ | |
884 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
885 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
886 | 0, /* rightshift */ | |
887 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
888 | 64, /* bitsize */ | |
b34976b6 | 889 | TRUE, /* pc_relative */ |
5bd4f169 AM |
890 | 0, /* bitpos */ |
891 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 892 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 893 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 894 | FALSE, /* partial_inplace */ |
5bd4f169 | 895 | 0, /* src_mask */ |
f5e87a1d | 896 | ONES (64), /* dst_mask */ |
b34976b6 | 897 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
898 | |
899 | /* 16 bit TOC-relative relocation. */ | |
900 | ||
901 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
902 | HOWTO (R_PPC64_TOC16, /* type */ | |
903 | 0, /* rightshift */ | |
904 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
905 | 16, /* bitsize */ | |
b34976b6 | 906 | FALSE, /* pc_relative */ |
5bd4f169 AM |
907 | 0, /* bitpos */ |
908 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 909 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 910 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 911 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
912 | 0, /* src_mask */ |
913 | 0xffff, /* dst_mask */ | |
b34976b6 | 914 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
915 | |
916 | /* 16 bit TOC-relative relocation without overflow. */ | |
917 | ||
918 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
919 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
920 | 0, /* rightshift */ | |
921 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
922 | 16, /* bitsize */ | |
b34976b6 | 923 | FALSE, /* pc_relative */ |
5bd4f169 AM |
924 | 0, /* bitpos */ |
925 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 926 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 927 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 928 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
929 | 0, /* src_mask */ |
930 | 0xffff, /* dst_mask */ | |
b34976b6 | 931 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
932 | |
933 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
934 | ||
935 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
936 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
937 | 16, /* rightshift */ | |
938 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
939 | 16, /* bitsize */ | |
b34976b6 | 940 | FALSE, /* pc_relative */ |
5bd4f169 AM |
941 | 0, /* bitpos */ |
942 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 943 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 944 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 945 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
946 | 0, /* src_mask */ |
947 | 0xffff, /* dst_mask */ | |
b34976b6 | 948 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
949 | |
950 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
951 | contents of the low 16 bits, treated as a signed number, is | |
952 | negative. */ | |
953 | ||
954 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
955 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
956 | 16, /* rightshift */ | |
957 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
958 | 16, /* bitsize */ | |
b34976b6 | 959 | FALSE, /* pc_relative */ |
5bd4f169 AM |
960 | 0, /* bitpos */ |
961 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 962 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 963 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 964 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
965 | 0, /* src_mask */ |
966 | 0xffff, /* dst_mask */ | |
b34976b6 | 967 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
968 | |
969 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
970 | ||
971 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
972 | HOWTO (R_PPC64_TOC, /* type */ | |
973 | 0, /* rightshift */ | |
974 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
975 | 64, /* bitsize */ | |
b34976b6 | 976 | FALSE, /* pc_relative */ |
5bd4f169 AM |
977 | 0, /* bitpos */ |
978 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 979 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 980 | "R_PPC64_TOC", /* name */ |
b34976b6 | 981 | FALSE, /* partial_inplace */ |
5bd4f169 | 982 | 0, /* src_mask */ |
f5e87a1d | 983 | ONES (64), /* dst_mask */ |
b34976b6 | 984 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
985 | |
986 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
987 | value to relocate may (!) refer to a PLT entry which the link | |
988 | editor (a) may replace with the symbol value. If the link editor | |
989 | is unable to fully resolve the symbol, it may (b) create a PLT | |
990 | entry and store the address to the new PLT entry in the GOT. | |
991 | This permits lazy resolution of function symbols at run time. | |
992 | The link editor may also skip all of this and just (c) emit a | |
993 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
994 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
995 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
996 | 0, /* rightshift */ | |
997 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
998 | 16, /* bitsize */ | |
b34976b6 | 999 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1000 | 0, /* bitpos */ |
1001 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 1002 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
1003 | "R_PPC64_PLTGOT16", /* name */ |
1004 | FALSE, /* partial_inplace */ | |
1005 | 0, /* src_mask */ | |
1006 | 0xffff, /* dst_mask */ | |
1007 | FALSE), /* pcrel_offset */ | |
1008 | ||
1009 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
1010 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1011 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
1012 | 0, /* rightshift */ | |
1013 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1014 | 16, /* bitsize */ | |
1015 | FALSE, /* pc_relative */ | |
1016 | 0, /* bitpos */ | |
1017 | complain_overflow_dont, /* complain_on_overflow */ | |
1018 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1019 | "R_PPC64_PLTGOT16_LO", /* name */ | |
1020 | FALSE, /* partial_inplace */ | |
1021 | 0, /* src_mask */ | |
1022 | 0xffff, /* dst_mask */ | |
1023 | FALSE), /* pcrel_offset */ | |
1024 | ||
1025 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1026 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1027 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1028 | 16, /* rightshift */ | |
1029 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1030 | 16, /* bitsize */ | |
1031 | FALSE, /* pc_relative */ | |
1032 | 0, /* bitpos */ | |
1033 | complain_overflow_dont, /* complain_on_overflow */ | |
1034 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1035 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1036 | FALSE, /* partial_inplace */ | |
1037 | 0, /* src_mask */ | |
1038 | 0xffff, /* dst_mask */ | |
1039 | FALSE), /* pcrel_offset */ | |
1040 | ||
1041 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1042 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1043 | is negative. */ | |
1044 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1045 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1046 | 16, /* rightshift */ | |
1047 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1048 | 16, /* bitsize */ | |
1049 | FALSE, /* pc_relative */ | |
1050 | 0, /* bitpos */ | |
1051 | complain_overflow_dont,/* complain_on_overflow */ | |
1052 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1053 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1054 | FALSE, /* partial_inplace */ | |
1055 | 0, /* src_mask */ | |
1056 | 0xffff, /* dst_mask */ | |
1057 | FALSE), /* pcrel_offset */ | |
1058 | ||
1059 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1060 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1061 | 0, /* rightshift */ | |
1062 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1063 | 16, /* bitsize */ | |
1064 | FALSE, /* pc_relative */ | |
1065 | 0, /* bitpos */ | |
1066 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1067 | bfd_elf_generic_reloc, /* special_function */ | |
1068 | "R_PPC64_ADDR16_DS", /* name */ | |
1069 | FALSE, /* partial_inplace */ | |
1070 | 0, /* src_mask */ | |
1071 | 0xfffc, /* dst_mask */ | |
1072 | FALSE), /* pcrel_offset */ | |
1073 | ||
1074 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1075 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1076 | 0, /* rightshift */ | |
1077 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1078 | 16, /* bitsize */ | |
1079 | FALSE, /* pc_relative */ | |
1080 | 0, /* bitpos */ | |
1081 | complain_overflow_dont,/* complain_on_overflow */ | |
1082 | bfd_elf_generic_reloc, /* special_function */ | |
1083 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1084 | FALSE, /* partial_inplace */ | |
1085 | 0, /* src_mask */ | |
1086 | 0xfffc, /* dst_mask */ | |
1087 | FALSE), /* pcrel_offset */ | |
1088 | ||
1089 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1090 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1091 | 0, /* rightshift */ | |
1092 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1093 | 16, /* bitsize */ | |
1094 | FALSE, /* pc_relative */ | |
1095 | 0, /* bitpos */ | |
1096 | complain_overflow_signed, /* complain_on_overflow */ | |
1097 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1098 | "R_PPC64_GOT16_DS", /* name */ | |
1099 | FALSE, /* partial_inplace */ | |
1100 | 0, /* src_mask */ | |
1101 | 0xfffc, /* dst_mask */ | |
1102 | FALSE), /* pcrel_offset */ | |
1103 | ||
1104 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1105 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1106 | 0, /* rightshift */ | |
1107 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1108 | 16, /* bitsize */ | |
1109 | FALSE, /* pc_relative */ | |
1110 | 0, /* bitpos */ | |
1111 | complain_overflow_dont, /* complain_on_overflow */ | |
1112 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1113 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1114 | FALSE, /* partial_inplace */ | |
1115 | 0, /* src_mask */ | |
1116 | 0xfffc, /* dst_mask */ | |
1117 | FALSE), /* pcrel_offset */ | |
1118 | ||
1119 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1120 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1121 | 0, /* rightshift */ | |
1122 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1123 | 16, /* bitsize */ | |
1124 | FALSE, /* pc_relative */ | |
1125 | 0, /* bitpos */ | |
1126 | complain_overflow_dont, /* complain_on_overflow */ | |
1127 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1128 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1129 | FALSE, /* partial_inplace */ | |
1130 | 0, /* src_mask */ | |
1131 | 0xfffc, /* dst_mask */ | |
1132 | FALSE), /* pcrel_offset */ | |
1133 | ||
1134 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1135 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1136 | 0, /* rightshift */ | |
1137 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1138 | 16, /* bitsize */ | |
1139 | FALSE, /* pc_relative */ | |
1140 | 0, /* bitpos */ | |
1141 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1142 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1143 | "R_PPC64_SECTOFF_DS", /* name */ | |
1144 | FALSE, /* partial_inplace */ | |
1145 | 0, /* src_mask */ | |
1146 | 0xfffc, /* dst_mask */ | |
1147 | FALSE), /* pcrel_offset */ | |
1148 | ||
1149 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1150 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1151 | 0, /* rightshift */ | |
1152 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1153 | 16, /* bitsize */ | |
1154 | FALSE, /* pc_relative */ | |
1155 | 0, /* bitpos */ | |
1156 | complain_overflow_dont, /* complain_on_overflow */ | |
1157 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1158 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1159 | FALSE, /* partial_inplace */ | |
1160 | 0, /* src_mask */ | |
1161 | 0xfffc, /* dst_mask */ | |
1162 | FALSE), /* pcrel_offset */ | |
1163 | ||
1164 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1165 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1166 | 0, /* rightshift */ | |
1167 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1168 | 16, /* bitsize */ | |
1169 | FALSE, /* pc_relative */ | |
1170 | 0, /* bitpos */ | |
1171 | complain_overflow_signed, /* complain_on_overflow */ | |
1172 | ppc64_elf_toc_reloc, /* special_function */ | |
1173 | "R_PPC64_TOC16_DS", /* name */ | |
1174 | FALSE, /* partial_inplace */ | |
1175 | 0, /* src_mask */ | |
1176 | 0xfffc, /* dst_mask */ | |
1177 | FALSE), /* pcrel_offset */ | |
1178 | ||
1179 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1180 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1181 | 0, /* rightshift */ | |
1182 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1183 | 16, /* bitsize */ | |
1184 | FALSE, /* pc_relative */ | |
1185 | 0, /* bitpos */ | |
1186 | complain_overflow_dont, /* complain_on_overflow */ | |
1187 | ppc64_elf_toc_reloc, /* special_function */ | |
1188 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1189 | FALSE, /* partial_inplace */ | |
1190 | 0, /* src_mask */ | |
1191 | 0xfffc, /* dst_mask */ | |
1192 | FALSE), /* pcrel_offset */ | |
1193 | ||
1194 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1195 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1196 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1197 | 0, /* rightshift */ | |
1198 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1199 | 16, /* bitsize */ | |
1200 | FALSE, /* pc_relative */ | |
1201 | 0, /* bitpos */ | |
1202 | complain_overflow_signed, /* complain_on_overflow */ | |
1203 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1204 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1205 | FALSE, /* partial_inplace */ | |
1206 | 0, /* src_mask */ | |
1207 | 0xfffc, /* dst_mask */ | |
1208 | FALSE), /* pcrel_offset */ | |
1209 | ||
1210 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1211 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1212 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1213 | 0, /* rightshift */ | |
1214 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1215 | 16, /* bitsize */ | |
1216 | FALSE, /* pc_relative */ | |
1217 | 0, /* bitpos */ | |
1218 | complain_overflow_dont, /* complain_on_overflow */ | |
1219 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1220 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1221 | FALSE, /* partial_inplace */ | |
1222 | 0, /* src_mask */ | |
1223 | 0xfffc, /* dst_mask */ | |
1224 | FALSE), /* pcrel_offset */ | |
1225 | ||
1226 | /* Marker reloc for TLS. */ | |
1227 | HOWTO (R_PPC64_TLS, | |
1228 | 0, /* rightshift */ | |
1229 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1230 | 32, /* bitsize */ | |
1231 | FALSE, /* pc_relative */ | |
1232 | 0, /* bitpos */ | |
1233 | complain_overflow_dont, /* complain_on_overflow */ | |
1234 | bfd_elf_generic_reloc, /* special_function */ | |
1235 | "R_PPC64_TLS", /* name */ | |
1236 | FALSE, /* partial_inplace */ | |
1237 | 0, /* src_mask */ | |
1238 | 0, /* dst_mask */ | |
1239 | FALSE), /* pcrel_offset */ | |
1240 | ||
1241 | /* Computes the load module index of the load module that contains the | |
1242 | definition of its TLS sym. */ | |
1243 | HOWTO (R_PPC64_DTPMOD64, | |
1244 | 0, /* rightshift */ | |
1245 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1246 | 64, /* bitsize */ | |
1247 | FALSE, /* pc_relative */ | |
1248 | 0, /* bitpos */ | |
1249 | complain_overflow_dont, /* complain_on_overflow */ | |
1250 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1251 | "R_PPC64_DTPMOD64", /* name */ | |
1252 | FALSE, /* partial_inplace */ | |
1253 | 0, /* src_mask */ | |
1254 | ONES (64), /* dst_mask */ | |
1255 | FALSE), /* pcrel_offset */ | |
1256 | ||
1257 | /* Computes a dtv-relative displacement, the difference between the value | |
1258 | of sym+add and the base address of the thread-local storage block that | |
1259 | contains the definition of sym, minus 0x8000. */ | |
1260 | HOWTO (R_PPC64_DTPREL64, | |
1261 | 0, /* rightshift */ | |
1262 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1263 | 64, /* bitsize */ | |
1264 | FALSE, /* pc_relative */ | |
1265 | 0, /* bitpos */ | |
1266 | complain_overflow_dont, /* complain_on_overflow */ | |
1267 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1268 | "R_PPC64_DTPREL64", /* name */ | |
1269 | FALSE, /* partial_inplace */ | |
1270 | 0, /* src_mask */ | |
1271 | ONES (64), /* dst_mask */ | |
1272 | FALSE), /* pcrel_offset */ | |
1273 | ||
1274 | /* A 16 bit dtprel reloc. */ | |
1275 | HOWTO (R_PPC64_DTPREL16, | |
1276 | 0, /* rightshift */ | |
1277 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1278 | 16, /* bitsize */ | |
1279 | FALSE, /* pc_relative */ | |
1280 | 0, /* bitpos */ | |
1281 | complain_overflow_signed, /* complain_on_overflow */ | |
1282 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1283 | "R_PPC64_DTPREL16", /* name */ | |
1284 | FALSE, /* partial_inplace */ | |
1285 | 0, /* src_mask */ | |
1286 | 0xffff, /* dst_mask */ | |
1287 | FALSE), /* pcrel_offset */ | |
1288 | ||
1289 | /* Like DTPREL16, but no overflow. */ | |
1290 | HOWTO (R_PPC64_DTPREL16_LO, | |
1291 | 0, /* rightshift */ | |
1292 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1293 | 16, /* bitsize */ | |
1294 | FALSE, /* pc_relative */ | |
1295 | 0, /* bitpos */ | |
1296 | complain_overflow_dont, /* complain_on_overflow */ | |
1297 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1298 | "R_PPC64_DTPREL16_LO", /* name */ | |
1299 | FALSE, /* partial_inplace */ | |
1300 | 0, /* src_mask */ | |
1301 | 0xffff, /* dst_mask */ | |
1302 | FALSE), /* pcrel_offset */ | |
1303 | ||
1304 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1305 | HOWTO (R_PPC64_DTPREL16_HI, | |
1306 | 16, /* rightshift */ | |
1307 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1308 | 16, /* bitsize */ | |
1309 | FALSE, /* pc_relative */ | |
1310 | 0, /* bitpos */ | |
1311 | complain_overflow_dont, /* complain_on_overflow */ | |
1312 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1313 | "R_PPC64_DTPREL16_HI", /* name */ | |
1314 | FALSE, /* partial_inplace */ | |
1315 | 0, /* src_mask */ | |
1316 | 0xffff, /* dst_mask */ | |
1317 | FALSE), /* pcrel_offset */ | |
1318 | ||
1319 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1320 | HOWTO (R_PPC64_DTPREL16_HA, | |
1321 | 16, /* rightshift */ | |
1322 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1323 | 16, /* bitsize */ | |
1324 | FALSE, /* pc_relative */ | |
1325 | 0, /* bitpos */ | |
1326 | complain_overflow_dont, /* complain_on_overflow */ | |
1327 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1328 | "R_PPC64_DTPREL16_HA", /* name */ | |
1329 | FALSE, /* partial_inplace */ | |
1330 | 0, /* src_mask */ | |
1331 | 0xffff, /* dst_mask */ | |
1332 | FALSE), /* pcrel_offset */ | |
1333 | ||
1334 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1335 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1336 | 32, /* rightshift */ | |
1337 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1338 | 16, /* bitsize */ | |
1339 | FALSE, /* pc_relative */ | |
1340 | 0, /* bitpos */ | |
1341 | complain_overflow_dont, /* complain_on_overflow */ | |
1342 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1343 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1344 | FALSE, /* partial_inplace */ | |
1345 | 0, /* src_mask */ | |
1346 | 0xffff, /* dst_mask */ | |
1347 | FALSE), /* pcrel_offset */ | |
1348 | ||
1349 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1350 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1351 | 32, /* rightshift */ | |
1352 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1353 | 16, /* bitsize */ | |
1354 | FALSE, /* pc_relative */ | |
1355 | 0, /* bitpos */ | |
1356 | complain_overflow_dont, /* complain_on_overflow */ | |
1357 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1358 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1359 | FALSE, /* partial_inplace */ | |
1360 | 0, /* src_mask */ | |
1361 | 0xffff, /* dst_mask */ | |
1362 | FALSE), /* pcrel_offset */ | |
1363 | ||
1364 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1365 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1366 | 48, /* rightshift */ | |
1367 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1368 | 16, /* bitsize */ | |
1369 | FALSE, /* pc_relative */ | |
1370 | 0, /* bitpos */ | |
1371 | complain_overflow_dont, /* complain_on_overflow */ | |
1372 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1373 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1374 | FALSE, /* partial_inplace */ | |
1375 | 0, /* src_mask */ | |
1376 | 0xffff, /* dst_mask */ | |
1377 | FALSE), /* pcrel_offset */ | |
1378 | ||
1379 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1380 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1381 | 48, /* rightshift */ | |
1382 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1383 | 16, /* bitsize */ | |
1384 | FALSE, /* pc_relative */ | |
1385 | 0, /* bitpos */ | |
1386 | complain_overflow_dont, /* complain_on_overflow */ | |
1387 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1388 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1389 | FALSE, /* partial_inplace */ | |
1390 | 0, /* src_mask */ | |
1391 | 0xffff, /* dst_mask */ | |
1392 | FALSE), /* pcrel_offset */ | |
1393 | ||
1394 | /* Like DTPREL16, but for insns with a DS field. */ | |
1395 | HOWTO (R_PPC64_DTPREL16_DS, | |
1396 | 0, /* rightshift */ | |
1397 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1398 | 16, /* bitsize */ | |
1399 | FALSE, /* pc_relative */ | |
1400 | 0, /* bitpos */ | |
1401 | complain_overflow_signed, /* complain_on_overflow */ | |
1402 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1403 | "R_PPC64_DTPREL16_DS", /* name */ | |
1404 | FALSE, /* partial_inplace */ | |
1405 | 0, /* src_mask */ | |
1406 | 0xfffc, /* dst_mask */ | |
1407 | FALSE), /* pcrel_offset */ | |
1408 | ||
1409 | /* Like DTPREL16_DS, but no overflow. */ | |
1410 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1411 | 0, /* rightshift */ | |
1412 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1413 | 16, /* bitsize */ | |
1414 | FALSE, /* pc_relative */ | |
1415 | 0, /* bitpos */ | |
1416 | complain_overflow_dont, /* complain_on_overflow */ | |
1417 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1418 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1419 | FALSE, /* partial_inplace */ | |
1420 | 0, /* src_mask */ | |
1421 | 0xfffc, /* dst_mask */ | |
1422 | FALSE), /* pcrel_offset */ | |
1423 | ||
1424 | /* Computes a tp-relative displacement, the difference between the value of | |
1425 | sym+add and the value of the thread pointer (r13). */ | |
1426 | HOWTO (R_PPC64_TPREL64, | |
1427 | 0, /* rightshift */ | |
1428 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1429 | 64, /* bitsize */ | |
1430 | FALSE, /* pc_relative */ | |
1431 | 0, /* bitpos */ | |
1432 | complain_overflow_dont, /* complain_on_overflow */ | |
1433 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1434 | "R_PPC64_TPREL64", /* name */ | |
1435 | FALSE, /* partial_inplace */ | |
1436 | 0, /* src_mask */ | |
1437 | ONES (64), /* dst_mask */ | |
1438 | FALSE), /* pcrel_offset */ | |
1439 | ||
1440 | /* A 16 bit tprel reloc. */ | |
1441 | HOWTO (R_PPC64_TPREL16, | |
1442 | 0, /* rightshift */ | |
1443 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1444 | 16, /* bitsize */ | |
1445 | FALSE, /* pc_relative */ | |
1446 | 0, /* bitpos */ | |
1447 | complain_overflow_signed, /* complain_on_overflow */ | |
1448 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1449 | "R_PPC64_TPREL16", /* name */ | |
1450 | FALSE, /* partial_inplace */ | |
1451 | 0, /* src_mask */ | |
1452 | 0xffff, /* dst_mask */ | |
1453 | FALSE), /* pcrel_offset */ | |
1454 | ||
1455 | /* Like TPREL16, but no overflow. */ | |
1456 | HOWTO (R_PPC64_TPREL16_LO, | |
1457 | 0, /* rightshift */ | |
1458 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1459 | 16, /* bitsize */ | |
1460 | FALSE, /* pc_relative */ | |
1461 | 0, /* bitpos */ | |
1462 | complain_overflow_dont, /* complain_on_overflow */ | |
1463 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1464 | "R_PPC64_TPREL16_LO", /* name */ | |
1465 | FALSE, /* partial_inplace */ | |
1466 | 0, /* src_mask */ | |
1467 | 0xffff, /* dst_mask */ | |
1468 | FALSE), /* pcrel_offset */ | |
1469 | ||
1470 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1471 | HOWTO (R_PPC64_TPREL16_HI, | |
1472 | 16, /* rightshift */ | |
1473 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1474 | 16, /* bitsize */ | |
1475 | FALSE, /* pc_relative */ | |
1476 | 0, /* bitpos */ | |
1477 | complain_overflow_dont, /* complain_on_overflow */ | |
1478 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1479 | "R_PPC64_TPREL16_HI", /* name */ | |
1480 | FALSE, /* partial_inplace */ | |
1481 | 0, /* src_mask */ | |
1482 | 0xffff, /* dst_mask */ | |
1483 | FALSE), /* pcrel_offset */ | |
1484 | ||
1485 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1486 | HOWTO (R_PPC64_TPREL16_HA, | |
1487 | 16, /* rightshift */ | |
1488 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1489 | 16, /* bitsize */ | |
1490 | FALSE, /* pc_relative */ | |
1491 | 0, /* bitpos */ | |
1492 | complain_overflow_dont, /* complain_on_overflow */ | |
1493 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1494 | "R_PPC64_TPREL16_HA", /* name */ | |
1495 | FALSE, /* partial_inplace */ | |
1496 | 0, /* src_mask */ | |
1497 | 0xffff, /* dst_mask */ | |
1498 | FALSE), /* pcrel_offset */ | |
1499 | ||
1500 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1501 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1502 | 32, /* rightshift */ | |
1503 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1504 | 16, /* bitsize */ | |
1505 | FALSE, /* pc_relative */ | |
1506 | 0, /* bitpos */ | |
1507 | complain_overflow_dont, /* complain_on_overflow */ | |
1508 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1509 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1510 | FALSE, /* partial_inplace */ | |
1511 | 0, /* src_mask */ | |
1512 | 0xffff, /* dst_mask */ | |
1513 | FALSE), /* pcrel_offset */ | |
1514 | ||
1515 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1516 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1517 | 32, /* rightshift */ | |
1518 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1519 | 16, /* bitsize */ | |
1520 | FALSE, /* pc_relative */ | |
1521 | 0, /* bitpos */ | |
1522 | complain_overflow_dont, /* complain_on_overflow */ | |
1523 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1524 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1525 | FALSE, /* partial_inplace */ | |
1526 | 0, /* src_mask */ | |
1527 | 0xffff, /* dst_mask */ | |
1528 | FALSE), /* pcrel_offset */ | |
1529 | ||
1530 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1531 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1532 | 48, /* rightshift */ | |
1533 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1534 | 16, /* bitsize */ | |
1535 | FALSE, /* pc_relative */ | |
1536 | 0, /* bitpos */ | |
1537 | complain_overflow_dont, /* complain_on_overflow */ | |
1538 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1539 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1540 | FALSE, /* partial_inplace */ | |
1541 | 0, /* src_mask */ | |
1542 | 0xffff, /* dst_mask */ | |
1543 | FALSE), /* pcrel_offset */ | |
1544 | ||
1545 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1546 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1547 | 48, /* rightshift */ | |
1548 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1549 | 16, /* bitsize */ | |
1550 | FALSE, /* pc_relative */ | |
1551 | 0, /* bitpos */ | |
1552 | complain_overflow_dont, /* complain_on_overflow */ | |
1553 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1554 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1555 | FALSE, /* partial_inplace */ | |
1556 | 0, /* src_mask */ | |
1557 | 0xffff, /* dst_mask */ | |
1558 | FALSE), /* pcrel_offset */ | |
1559 | ||
1560 | /* Like TPREL16, but for insns with a DS field. */ | |
1561 | HOWTO (R_PPC64_TPREL16_DS, | |
1562 | 0, /* rightshift */ | |
1563 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1564 | 16, /* bitsize */ | |
1565 | FALSE, /* pc_relative */ | |
1566 | 0, /* bitpos */ | |
1567 | complain_overflow_signed, /* complain_on_overflow */ | |
1568 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1569 | "R_PPC64_TPREL16_DS", /* name */ | |
1570 | FALSE, /* partial_inplace */ | |
1571 | 0, /* src_mask */ | |
1572 | 0xfffc, /* dst_mask */ | |
1573 | FALSE), /* pcrel_offset */ | |
1574 | ||
1575 | /* Like TPREL16_DS, but no overflow. */ | |
1576 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1577 | 0, /* rightshift */ | |
1578 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1579 | 16, /* bitsize */ | |
1580 | FALSE, /* pc_relative */ | |
1581 | 0, /* bitpos */ | |
1582 | complain_overflow_dont, /* complain_on_overflow */ | |
1583 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1584 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1585 | FALSE, /* partial_inplace */ | |
1586 | 0, /* src_mask */ | |
1587 | 0xfffc, /* dst_mask */ | |
1588 | FALSE), /* pcrel_offset */ | |
1589 | ||
1590 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1591 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1592 | to the first entry relative to the TOC base (r2). */ | |
1593 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1594 | 0, /* rightshift */ | |
1595 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1596 | 16, /* bitsize */ | |
1597 | FALSE, /* pc_relative */ | |
1598 | 0, /* bitpos */ | |
1599 | complain_overflow_signed, /* complain_on_overflow */ | |
1600 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1601 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1602 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1603 | 0, /* src_mask */ |
1604 | 0xffff, /* dst_mask */ | |
b34976b6 | 1605 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1606 | |
411e1bfb AM |
1607 | /* Like GOT_TLSGD16, but no overflow. */ |
1608 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1609 | 0, /* rightshift */ |
1610 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1611 | 16, /* bitsize */ | |
b34976b6 | 1612 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1613 | 0, /* bitpos */ |
1614 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1615 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1616 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1617 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1618 | 0, /* src_mask */ |
1619 | 0xffff, /* dst_mask */ | |
b34976b6 | 1620 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1621 | |
411e1bfb AM |
1622 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1623 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1624 | 16, /* rightshift */ |
1625 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1626 | 16, /* bitsize */ | |
b34976b6 | 1627 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1628 | 0, /* bitpos */ |
1629 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1630 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1631 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1632 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1633 | 0, /* src_mask */ |
1634 | 0xffff, /* dst_mask */ | |
b34976b6 | 1635 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1636 | |
411e1bfb AM |
1637 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1638 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1639 | 16, /* rightshift */ |
1640 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1641 | 16, /* bitsize */ | |
b34976b6 | 1642 | FALSE, /* pc_relative */ |
5bd4f169 | 1643 | 0, /* bitpos */ |
411e1bfb | 1644 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1645 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1646 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1647 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1648 | 0, /* src_mask */ |
1649 | 0xffff, /* dst_mask */ | |
b34976b6 | 1650 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1651 | |
411e1bfb AM |
1652 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1653 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1654 | first entry relative to the TOC base (r2). */ | |
1655 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1656 | 0, /* rightshift */ |
1657 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1658 | 16, /* bitsize */ | |
b34976b6 | 1659 | FALSE, /* pc_relative */ |
5bd4f169 | 1660 | 0, /* bitpos */ |
411e1bfb AM |
1661 | complain_overflow_signed, /* complain_on_overflow */ |
1662 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1663 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1664 | FALSE, /* partial_inplace */ |
d006db6c | 1665 | 0, /* src_mask */ |
411e1bfb | 1666 | 0xffff, /* dst_mask */ |
b34976b6 | 1667 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1668 | |
411e1bfb AM |
1669 | /* Like GOT_TLSLD16, but no overflow. */ |
1670 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1671 | 0, /* rightshift */ |
1672 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1673 | 16, /* bitsize */ | |
b34976b6 | 1674 | FALSE, /* pc_relative */ |
5bd4f169 | 1675 | 0, /* bitpos */ |
411e1bfb AM |
1676 | complain_overflow_dont, /* complain_on_overflow */ |
1677 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1678 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1679 | FALSE, /* partial_inplace */ |
d006db6c | 1680 | 0, /* src_mask */ |
411e1bfb | 1681 | 0xffff, /* dst_mask */ |
b34976b6 | 1682 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1683 | |
411e1bfb AM |
1684 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1685 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1686 | 16, /* rightshift */ | |
5bd4f169 AM |
1687 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1688 | 16, /* bitsize */ | |
b34976b6 | 1689 | FALSE, /* pc_relative */ |
5bd4f169 | 1690 | 0, /* bitpos */ |
411e1bfb | 1691 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1692 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1693 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1694 | FALSE, /* partial_inplace */ |
d006db6c | 1695 | 0, /* src_mask */ |
411e1bfb | 1696 | 0xffff, /* dst_mask */ |
b34976b6 | 1697 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1698 | |
411e1bfb AM |
1699 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1700 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1701 | 16, /* rightshift */ | |
5bd4f169 AM |
1702 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1703 | 16, /* bitsize */ | |
b34976b6 | 1704 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1705 | 0, /* bitpos */ |
1706 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1707 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1708 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1709 | FALSE, /* partial_inplace */ |
d006db6c | 1710 | 0, /* src_mask */ |
411e1bfb | 1711 | 0xffff, /* dst_mask */ |
b34976b6 | 1712 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1713 | |
411e1bfb AM |
1714 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1715 | the offset to the entry relative to the TOC base (r2). */ | |
1716 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1717 | 0, /* rightshift */ |
1718 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1719 | 16, /* bitsize */ | |
b34976b6 | 1720 | FALSE, /* pc_relative */ |
5bd4f169 | 1721 | 0, /* bitpos */ |
411e1bfb | 1722 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1723 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1724 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1725 | FALSE, /* partial_inplace */ |
d006db6c | 1726 | 0, /* src_mask */ |
5bd4f169 | 1727 | 0xfffc, /* dst_mask */ |
b34976b6 | 1728 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1729 | |
411e1bfb AM |
1730 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1731 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1732 | 0, /* rightshift */ |
c061c2d8 AM |
1733 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1734 | 16, /* bitsize */ | |
b34976b6 | 1735 | FALSE, /* pc_relative */ |
5bd4f169 | 1736 | 0, /* bitpos */ |
411e1bfb AM |
1737 | complain_overflow_dont, /* complain_on_overflow */ |
1738 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1739 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1740 | FALSE, /* partial_inplace */ |
d006db6c | 1741 | 0, /* src_mask */ |
c061c2d8 | 1742 | 0xfffc, /* dst_mask */ |
b34976b6 | 1743 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1744 | |
411e1bfb AM |
1745 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1746 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1747 | 16, /* rightshift */ | |
5bd4f169 AM |
1748 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1749 | 16, /* bitsize */ | |
b34976b6 | 1750 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1751 | 0, /* bitpos */ |
1752 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1753 | ppc64_elf_unhandled_reloc, /* special_function */ |
1754 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1755 | FALSE, /* partial_inplace */ |
d006db6c | 1756 | 0, /* src_mask */ |
411e1bfb | 1757 | 0xffff, /* dst_mask */ |
b34976b6 | 1758 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1759 | |
411e1bfb AM |
1760 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1761 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1762 | 16, /* rightshift */ | |
1763 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1764 | 16, /* bitsize */ | |
1765 | FALSE, /* pc_relative */ | |
1766 | 0, /* bitpos */ | |
1767 | complain_overflow_dont, /* complain_on_overflow */ | |
1768 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1769 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1770 | FALSE, /* partial_inplace */ | |
1771 | 0, /* src_mask */ | |
1772 | 0xffff, /* dst_mask */ | |
1773 | FALSE), /* pcrel_offset */ | |
1774 | ||
1775 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1776 | offset to the entry relative to the TOC base (r2). */ | |
1777 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1778 | 0, /* rightshift */ |
1779 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1780 | 16, /* bitsize */ | |
b34976b6 | 1781 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1782 | 0, /* bitpos */ |
1783 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1784 | ppc64_elf_unhandled_reloc, /* special_function */ |
1785 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1786 | FALSE, /* partial_inplace */ |
d006db6c | 1787 | 0, /* src_mask */ |
ad8e1ba5 | 1788 | 0xfffc, /* dst_mask */ |
b34976b6 | 1789 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1790 | |
411e1bfb AM |
1791 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1792 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1793 | 0, /* rightshift */ |
1794 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1795 | 16, /* bitsize */ | |
b34976b6 | 1796 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1797 | 0, /* bitpos */ |
1798 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1799 | ppc64_elf_unhandled_reloc, /* special_function */ |
1800 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1801 | FALSE, /* partial_inplace */ |
d006db6c | 1802 | 0, /* src_mask */ |
ad8e1ba5 | 1803 | 0xfffc, /* dst_mask */ |
b34976b6 | 1804 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1805 | |
411e1bfb AM |
1806 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1807 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1808 | 16, /* rightshift */ | |
5bd4f169 AM |
1809 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1810 | 16, /* bitsize */ | |
b34976b6 | 1811 | FALSE, /* pc_relative */ |
5bd4f169 | 1812 | 0, /* bitpos */ |
411e1bfb | 1813 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1814 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1815 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1816 | FALSE, /* partial_inplace */ |
d006db6c | 1817 | 0, /* src_mask */ |
411e1bfb | 1818 | 0xffff, /* dst_mask */ |
b34976b6 | 1819 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1820 | |
411e1bfb AM |
1821 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1822 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1823 | 16, /* rightshift */ | |
5bd4f169 AM |
1824 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1825 | 16, /* bitsize */ | |
b34976b6 | 1826 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1827 | 0, /* bitpos */ |
1828 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1829 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1830 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1831 | FALSE, /* partial_inplace */ |
d006db6c | 1832 | 0, /* src_mask */ |
411e1bfb | 1833 | 0xffff, /* dst_mask */ |
b34976b6 | 1834 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1835 | |
1836 | /* GNU extension to record C++ vtable hierarchy. */ | |
1837 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1838 | 0, /* rightshift */ | |
1839 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1840 | 0, /* bitsize */ | |
b34976b6 | 1841 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1842 | 0, /* bitpos */ |
1843 | complain_overflow_dont, /* complain_on_overflow */ | |
1844 | NULL, /* special_function */ | |
1845 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1846 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1847 | 0, /* src_mask */ |
1848 | 0, /* dst_mask */ | |
b34976b6 | 1849 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1850 | |
1851 | /* GNU extension to record C++ vtable member usage. */ | |
1852 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1853 | 0, /* rightshift */ | |
1854 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1855 | 0, /* bitsize */ | |
b34976b6 | 1856 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1857 | 0, /* bitpos */ |
1858 | complain_overflow_dont, /* complain_on_overflow */ | |
1859 | NULL, /* special_function */ | |
1860 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1861 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1862 | 0, /* src_mask */ |
1863 | 0, /* dst_mask */ | |
b34976b6 | 1864 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1865 | }; |
1866 | ||
1867 | \f | |
1868 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1869 | be done. */ | |
1870 | ||
1871 | static void | |
4ce794b7 | 1872 | ppc_howto_init (void) |
5bd4f169 AM |
1873 | { |
1874 | unsigned int i, type; | |
1875 | ||
1876 | for (i = 0; | |
1877 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1878 | i++) | |
1879 | { | |
1880 | type = ppc64_elf_howto_raw[i].type; | |
1881 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1882 | / sizeof (ppc64_elf_howto_table[0]))); | |
1883 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1884 | } | |
1885 | } | |
1886 | ||
1887 | static reloc_howto_type * | |
4ce794b7 AM |
1888 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1889 | bfd_reloc_code_real_type code) | |
5bd4f169 | 1890 | { |
411e1bfb | 1891 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1892 | |
1893 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1894 | /* Initialize howto table if needed. */ | |
1895 | ppc_howto_init (); | |
1896 | ||
4ce794b7 | 1897 | switch (code) |
5bd4f169 AM |
1898 | { |
1899 | default: | |
4ce794b7 | 1900 | return NULL; |
5bd4f169 | 1901 | |
411e1bfb AM |
1902 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1903 | break; | |
1904 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1905 | break; | |
1906 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1907 | break; | |
1908 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1909 | break; | |
1910 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1911 | break; | |
1912 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1913 | break; | |
1914 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1967 | break; |
411e1bfb | 1968 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1969 | break; |
411e1bfb | 1970 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1971 | break; |
411e1bfb | 1972 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1973 | break; |
411e1bfb | 1974 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1975 | break; |
411e1bfb | 1976 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1977 | break; |
411e1bfb | 1978 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1979 | break; |
411e1bfb | 1980 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1981 | break; |
411e1bfb | 1982 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1983 | break; |
411e1bfb | 1984 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1985 | break; |
411e1bfb | 1986 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1987 | break; |
411e1bfb | 1988 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1989 | break; |
411e1bfb | 1990 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1991 | break; |
411e1bfb | 1992 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1993 | break; |
411e1bfb | 1994 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1995 | break; |
411e1bfb | 1996 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1997 | break; |
411e1bfb | 1998 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1999 | break; |
411e1bfb | 2000 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 2001 | break; |
411e1bfb | 2002 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 2003 | break; |
411e1bfb | 2004 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 2005 | break; |
411e1bfb | 2006 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 2007 | break; |
411e1bfb | 2008 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 2009 | break; |
411e1bfb | 2010 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 2011 | break; |
411e1bfb | 2012 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 2013 | break; |
411e1bfb | 2014 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 2015 | break; |
411e1bfb | 2016 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 2017 | break; |
411e1bfb | 2018 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 2019 | break; |
411e1bfb | 2020 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 2021 | break; |
411e1bfb | 2022 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2023 | break; |
411e1bfb | 2024 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2025 | break; |
411e1bfb | 2026 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2027 | break; |
411e1bfb | 2028 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2029 | break; |
411e1bfb | 2030 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2031 | break; |
411e1bfb | 2032 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2033 | break; |
411e1bfb AM |
2034 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2035 | break; | |
2036 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2037 | break; | |
2038 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2039 | break; | |
2040 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2041 | break; | |
2042 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2043 | break; | |
2044 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2045 | break; | |
2046 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2047 | break; | |
2048 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2049 | break; | |
2050 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2051 | break; | |
2052 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2053 | break; | |
2054 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2055 | break; | |
2056 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2057 | break; | |
2058 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2059 | break; | |
2060 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2061 | break; | |
2062 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2063 | break; | |
2064 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2065 | break; | |
2066 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2067 | break; | |
2068 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2069 | break; | |
2070 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2071 | break; | |
2072 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2073 | break; | |
2074 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2075 | break; | |
2076 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2077 | break; | |
2078 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2079 | break; | |
2080 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2081 | break; | |
2082 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2083 | break; | |
2084 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2085 | break; | |
2086 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2087 | break; | |
2088 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2089 | break; | |
2090 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2091 | break; | |
2092 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2093 | break; | |
2094 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2095 | break; | |
2096 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2097 | break; | |
2098 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2099 | break; | |
2100 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2101 | break; | |
2102 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2103 | break; |
2104 | } | |
2105 | ||
4ce794b7 | 2106 | return ppc64_elf_howto_table[r]; |
5bd4f169 AM |
2107 | }; |
2108 | ||
2109 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2110 | ||
2111 | static void | |
4ce794b7 AM |
2112 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
2113 | Elf_Internal_Rela *dst) | |
5bd4f169 | 2114 | { |
65f38f15 AM |
2115 | unsigned int type; |
2116 | ||
ef60b7ff | 2117 | /* Initialize howto table if needed. */ |
5bd4f169 | 2118 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2119 | ppc_howto_init (); |
2120 | ||
65f38f15 | 2121 | type = ELF64_R_TYPE (dst->r_info); |
d0fb9a8d JJ |
2122 | if (type >= (sizeof (ppc64_elf_howto_table) |
2123 | / sizeof (ppc64_elf_howto_table[0]))) | |
2124 | { | |
2125 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
3ec2b351 NC |
2126 | abfd, (int) type); |
2127 | type = R_PPC64_NONE; | |
d0fb9a8d | 2128 | } |
65f38f15 | 2129 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
5bd4f169 AM |
2130 | } |
2131 | ||
04c9666a | 2132 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2133 | |
2134 | static bfd_reloc_status_type | |
4ce794b7 AM |
2135 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2136 | void *data, asection *input_section, | |
2137 | bfd *output_bfd, char **error_message) | |
5bd4f169 | 2138 | { |
805fc799 AM |
2139 | /* If this is a relocatable link (output_bfd test tells us), just |
2140 | call the generic function. Any adjustment will be done at final | |
2141 | link time. */ | |
2142 | if (output_bfd != NULL) | |
cedb70c5 | 2143 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2144 | input_section, output_bfd, error_message); |
2145 | ||
2146 | /* Adjust the addend for sign extension of the low 16 bits. | |
2147 | We won't actually be using the low 16 bits, so trashing them | |
2148 | doesn't matter. */ | |
2149 | reloc_entry->addend += 0x8000; | |
2150 | return bfd_reloc_continue; | |
2151 | } | |
5bd4f169 | 2152 | |
2441e016 AM |
2153 | static bfd_reloc_status_type |
2154 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2155 | void *data, asection *input_section, | |
2156 | bfd *output_bfd, char **error_message) | |
2157 | { | |
2158 | if (output_bfd != NULL) | |
2159 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2160 | input_section, output_bfd, error_message); | |
2161 | ||
699733f6 AM |
2162 | if (strcmp (symbol->section->name, ".opd") == 0 |
2163 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
2441e016 AM |
2164 | { |
2165 | bfd_vma dest = opd_entry_value (symbol->section, | |
2166 | symbol->value + reloc_entry->addend, | |
2167 | NULL, NULL); | |
2168 | if (dest != (bfd_vma) -1) | |
2169 | reloc_entry->addend = dest - (symbol->value | |
2170 | + symbol->section->output_section->vma | |
2171 | + symbol->section->output_offset); | |
2172 | } | |
2173 | return bfd_reloc_continue; | |
2174 | } | |
2175 | ||
805fc799 | 2176 | static bfd_reloc_status_type |
4ce794b7 AM |
2177 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2178 | void *data, asection *input_section, | |
2179 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2180 | { |
2181 | long insn; | |
04c9666a | 2182 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2183 | bfd_size_type octets; |
2184 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2185 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2186 | |
2187 | /* If this is a relocatable link (output_bfd test tells us), just | |
2188 | call the generic function. Any adjustment will be done at final | |
2189 | link time. */ | |
5bd4f169 | 2190 | if (output_bfd != NULL) |
cedb70c5 | 2191 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2192 | input_section, output_bfd, error_message); |
2193 | ||
2194 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2195 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2196 | insn &= ~(0x01 << 21); | |
4ce794b7 | 2197 | r_type = reloc_entry->howto->type; |
805fc799 AM |
2198 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2199 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2200 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2201 | |
2202 | if (is_power4) | |
5bd4f169 | 2203 | { |
805fc799 AM |
2204 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2205 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2206 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2207 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2208 | insn |= 0x02 << 21; | |
2209 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2210 | insn |= 0x08 << 21; | |
2211 | else | |
2441e016 | 2212 | goto out; |
5bd4f169 | 2213 | } |
805fc799 AM |
2214 | else |
2215 | { | |
2216 | bfd_vma target = 0; | |
2217 | bfd_vma from; | |
5bd4f169 | 2218 | |
805fc799 AM |
2219 | if (!bfd_is_com_section (symbol->section)) |
2220 | target = symbol->value; | |
2221 | target += symbol->section->output_section->vma; | |
2222 | target += symbol->section->output_offset; | |
2223 | target += reloc_entry->addend; | |
5bd4f169 | 2224 | |
805fc799 AM |
2225 | from = (reloc_entry->address |
2226 | + input_section->output_offset | |
2227 | + input_section->output_section->vma); | |
5bd4f169 | 2228 | |
805fc799 AM |
2229 | /* Invert 'y' bit if not the default. */ |
2230 | if ((bfd_signed_vma) (target - from) < 0) | |
2231 | insn ^= 0x01 << 21; | |
2232 | } | |
4ce794b7 | 2233 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
2441e016 AM |
2234 | out: |
2235 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
2236 | input_section, output_bfd, error_message); | |
805fc799 | 2237 | } |
5bd4f169 | 2238 | |
805fc799 | 2239 | static bfd_reloc_status_type |
4ce794b7 AM |
2240 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2241 | void *data, asection *input_section, | |
2242 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2243 | { |
2244 | /* If this is a relocatable link (output_bfd test tells us), just | |
2245 | call the generic function. Any adjustment will be done at final | |
2246 | link time. */ | |
2247 | if (output_bfd != NULL) | |
cedb70c5 | 2248 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2249 | input_section, output_bfd, error_message); |
5bd4f169 | 2250 | |
805fc799 AM |
2251 | /* Subtract the symbol section base address. */ |
2252 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2253 | return bfd_reloc_continue; |
2254 | } | |
2255 | ||
805fc799 | 2256 | static bfd_reloc_status_type |
4ce794b7 AM |
2257 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2258 | void *data, asection *input_section, | |
2259 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2260 | { |
2261 | /* If this is a relocatable link (output_bfd test tells us), just | |
2262 | call the generic function. Any adjustment will be done at final | |
2263 | link time. */ | |
2264 | if (output_bfd != NULL) | |
cedb70c5 | 2265 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2266 | input_section, output_bfd, error_message); |
2267 | ||
2268 | /* Subtract the symbol section base address. */ | |
2269 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2270 | ||
2271 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2272 | reloc_entry->addend += 0x8000; | |
2273 | return bfd_reloc_continue; | |
2274 | } | |
2275 | ||
2276 | static bfd_reloc_status_type | |
4ce794b7 AM |
2277 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2278 | void *data, asection *input_section, | |
2279 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2280 | { |
2281 | bfd_vma TOCstart; | |
2282 | ||
2283 | /* If this is a relocatable link (output_bfd test tells us), just | |
2284 | call the generic function. Any adjustment will be done at final | |
2285 | link time. */ | |
2286 | if (output_bfd != NULL) | |
cedb70c5 | 2287 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2288 | input_section, output_bfd, error_message); |
2289 | ||
2290 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2291 | if (TOCstart == 0) | |
2292 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2293 | ||
2294 | /* Subtract the TOC base address. */ | |
2295 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2296 | return bfd_reloc_continue; | |
2297 | } | |
2298 | ||
2299 | static bfd_reloc_status_type | |
4ce794b7 AM |
2300 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2301 | void *data, asection *input_section, | |
2302 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2303 | { |
2304 | bfd_vma TOCstart; | |
2305 | ||
2306 | /* If this is a relocatable link (output_bfd test tells us), just | |
2307 | call the generic function. Any adjustment will be done at final | |
2308 | link time. */ | |
2309 | if (output_bfd != NULL) | |
cedb70c5 | 2310 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2311 | input_section, output_bfd, error_message); |
2312 | ||
2313 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2314 | if (TOCstart == 0) | |
2315 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2316 | ||
2317 | /* Subtract the TOC base address. */ | |
2318 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2319 | ||
2320 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2321 | reloc_entry->addend += 0x8000; | |
2322 | return bfd_reloc_continue; | |
2323 | } | |
2324 | ||
2325 | static bfd_reloc_status_type | |
4ce794b7 AM |
2326 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2327 | void *data, asection *input_section, | |
2328 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2329 | { |
2330 | bfd_vma TOCstart; | |
2331 | bfd_size_type octets; | |
2332 | ||
2333 | /* If this is a relocatable link (output_bfd test tells us), just | |
2334 | call the generic function. Any adjustment will be done at final | |
2335 | link time. */ | |
2336 | if (output_bfd != NULL) | |
cedb70c5 | 2337 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2338 | input_section, output_bfd, error_message); |
2339 | ||
2340 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2341 | if (TOCstart == 0) | |
2342 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2343 | ||
2344 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2345 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2346 | return bfd_reloc_ok; | |
2347 | } | |
2348 | ||
2349 | static bfd_reloc_status_type | |
4ce794b7 AM |
2350 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2351 | void *data, asection *input_section, | |
2352 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2353 | { |
2354 | /* If this is a relocatable link (output_bfd test tells us), just | |
2355 | call the generic function. Any adjustment will be done at final | |
2356 | link time. */ | |
2357 | if (output_bfd != NULL) | |
cedb70c5 | 2358 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2359 | input_section, output_bfd, error_message); |
2360 | ||
2361 | if (error_message != NULL) | |
2362 | { | |
2363 | static char buf[60]; | |
2364 | sprintf (buf, "generic linker can't handle %s", | |
2365 | reloc_entry->howto->name); | |
2366 | *error_message = buf; | |
2367 | } | |
2368 | return bfd_reloc_dangerous; | |
2369 | } | |
2370 | ||
e717da7e AM |
2371 | struct ppc64_elf_obj_tdata |
2372 | { | |
2373 | struct elf_obj_tdata elf; | |
2374 | ||
2375 | /* Shortcuts to dynamic linker sections. */ | |
2376 | asection *got; | |
2377 | asection *relgot; | |
2378 | ||
433817dd AM |
2379 | union { |
2380 | /* Used during garbage collection. We attach global symbols defined | |
2381 | on removed .opd entries to this section so that the sym is removed. */ | |
2382 | asection *deleted_section; | |
2383 | ||
2384 | /* Used when adding symbols. */ | |
2385 | bfd_boolean has_dotsym; | |
2386 | } u; | |
81688140 | 2387 | |
e717da7e AM |
2388 | /* TLS local dynamic got entry handling. Suppose for multiple GOT |
2389 | sections means we potentially need one of these for each input bfd. */ | |
2390 | union { | |
2391 | bfd_signed_vma refcount; | |
2392 | bfd_vma offset; | |
2393 | } tlsld_got; | |
8860955f AM |
2394 | |
2395 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
2396 | Elf_Internal_Rela *opd_relocs; | |
e717da7e AM |
2397 | }; |
2398 | ||
2399 | #define ppc64_elf_tdata(bfd) \ | |
2400 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
2401 | ||
2402 | #define ppc64_tlsld_got(bfd) \ | |
2403 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
2404 | ||
2405 | /* Override the generic function because we store some extras. */ | |
2406 | ||
2407 | static bfd_boolean | |
2408 | ppc64_elf_mkobject (bfd *abfd) | |
2409 | { | |
2410 | bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata); | |
2411 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
2412 | if (abfd->tdata.any == NULL) | |
2413 | return FALSE; | |
2414 | return TRUE; | |
2415 | } | |
2416 | ||
ee75fd95 AM |
2417 | /* Return 1 if target is one of ours. */ |
2418 | ||
7b53ace3 | 2419 | static bfd_boolean |
ee75fd95 | 2420 | is_ppc64_elf_target (const struct bfd_target *targ) |
7b53ace3 AM |
2421 | { |
2422 | extern const bfd_target bfd_elf64_powerpc_vec; | |
2423 | extern const bfd_target bfd_elf64_powerpcle_vec; | |
2424 | ||
2425 | return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec; | |
2426 | } | |
2427 | ||
feee612b AM |
2428 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2429 | default is 32 bit. */ | |
2430 | ||
b34976b6 | 2431 | static bfd_boolean |
4ce794b7 | 2432 | ppc64_elf_object_p (bfd *abfd) |
feee612b AM |
2433 | { |
2434 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2435 | { | |
2436 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2437 | ||
2438 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2439 | { | |
2440 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2441 | abfd->arch_info = abfd->arch_info->next; | |
2442 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2443 | } | |
2444 | } | |
b34976b6 | 2445 | return TRUE; |
feee612b AM |
2446 | } |
2447 | ||
d37c89e5 AM |
2448 | /* Support for core dump NOTE sections. */ |
2449 | ||
2450 | static bfd_boolean | |
2451 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2452 | { | |
eea6121a | 2453 | size_t offset, size; |
d37c89e5 AM |
2454 | |
2455 | if (note->descsz != 504) | |
2456 | return FALSE; | |
2457 | ||
2458 | /* pr_cursig */ | |
2459 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
2460 | ||
2461 | /* pr_pid */ | |
2462 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32); | |
2463 | ||
2464 | /* pr_reg */ | |
2465 | offset = 112; | |
eea6121a | 2466 | size = 384; |
d37c89e5 AM |
2467 | |
2468 | /* Make a ".reg/999" section. */ | |
2469 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 2470 | size, note->descpos + offset); |
d37c89e5 AM |
2471 | } |
2472 | ||
2473 | static bfd_boolean | |
2474 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2475 | { | |
2476 | if (note->descsz != 136) | |
2477 | return FALSE; | |
2478 | ||
2479 | elf_tdata (abfd)->core_program | |
2480 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); | |
2481 | elf_tdata (abfd)->core_command | |
2482 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); | |
2483 | ||
2484 | return TRUE; | |
2485 | } | |
2486 | ||
5bd4f169 AM |
2487 | /* Merge backend specific data from an object file to the output |
2488 | object file when linking. */ | |
2f6d9989 | 2489 | |
b34976b6 | 2490 | static bfd_boolean |
4ce794b7 | 2491 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5bd4f169 | 2492 | { |
5bd4f169 AM |
2493 | /* Check if we have the same endianess. */ |
2494 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2495 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2496 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2497 | { | |
2498 | const char *msg; | |
2499 | ||
2500 | if (bfd_big_endian (ibfd)) | |
d003868e | 2501 | msg = _("%B: compiled for a big endian system " |
4ce794b7 | 2502 | "and target is little endian"); |
5bd4f169 | 2503 | else |
d003868e | 2504 | msg = _("%B: compiled for a little endian system " |
4ce794b7 | 2505 | "and target is big endian"); |
5bd4f169 | 2506 | |
d003868e | 2507 | (*_bfd_error_handler) (msg, ibfd); |
5bd4f169 AM |
2508 | |
2509 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2510 | return FALSE; |
5bd4f169 AM |
2511 | } |
2512 | ||
b34976b6 | 2513 | return TRUE; |
5bd4f169 | 2514 | } |
f0abc2a1 | 2515 | |
5d35169e AM |
2516 | /* Add extra PPC sections. */ |
2517 | ||
b35d266b | 2518 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
7f4d3958 L |
2519 | { |
2520 | { ".plt", 4, 0, SHT_NOBITS, 0 }, | |
7dcb9820 | 2521 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
551b43fd | 2522 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
7dcb9820 AM |
2523 | { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2524 | { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2525 | { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2526 | { NULL, 0, 0, 0, 0 } | |
5d35169e AM |
2527 | }; |
2528 | ||
f0abc2a1 AM |
2529 | struct _ppc64_elf_section_data |
2530 | { | |
2531 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2532 | |
2533 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2534 | union |
2535 | { | |
411e1bfb | 2536 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2537 | asection **func_sec; |
411e1bfb | 2538 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2539 | long *adjust; |
2540 | } opd; | |
411e1bfb AM |
2541 | |
2542 | /* An array for toc sections, indexed by offset/8. | |
2543 | Specifies the relocation symbol index used at a given toc offset. */ | |
2544 | unsigned *t_symndx; | |
f0abc2a1 AM |
2545 | }; |
2546 | ||
2547 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2548 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2549 | |
2550 | static bfd_boolean | |
4ce794b7 | 2551 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
f0abc2a1 AM |
2552 | { |
2553 | struct _ppc64_elf_section_data *sdata; | |
2554 | bfd_size_type amt = sizeof (*sdata); | |
2555 | ||
4ce794b7 | 2556 | sdata = bfd_zalloc (abfd, amt); |
f0abc2a1 AM |
2557 | if (sdata == NULL) |
2558 | return FALSE; | |
4ce794b7 | 2559 | sec->used_by_bfd = sdata; |
f0abc2a1 AM |
2560 | |
2561 | return _bfd_elf_new_section_hook (abfd, sec); | |
2562 | } | |
4025353c AM |
2563 | |
2564 | static void * | |
2565 | get_opd_info (asection * sec) | |
2566 | { | |
2567 | if (sec != NULL | |
2568 | && ppc64_elf_section_data (sec) != NULL | |
2569 | && ppc64_elf_section_data (sec)->opd.adjust != NULL) | |
2570 | return ppc64_elf_section_data (sec)->opd.adjust; | |
2571 | return NULL; | |
2572 | } | |
90e3cdf2 JJ |
2573 | \f |
2574 | /* Parameters for the qsort hook. */ | |
2575 | static asection *synthetic_opd; | |
2576 | static bfd_boolean synthetic_relocatable; | |
2577 | ||
699733f6 | 2578 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
90e3cdf2 JJ |
2579 | |
2580 | static int | |
2581 | compare_symbols (const void *ap, const void *bp) | |
2582 | { | |
2583 | const asymbol *a = * (const asymbol **) ap; | |
2584 | const asymbol *b = * (const asymbol **) bp; | |
2585 | ||
699733f6 AM |
2586 | /* Section symbols first. */ |
2587 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
90e3cdf2 | 2588 | return -1; |
699733f6 | 2589 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
90e3cdf2 JJ |
2590 | return 1; |
2591 | ||
699733f6 | 2592 | /* then .opd symbols. */ |
90e3cdf2 JJ |
2593 | if (a->section == synthetic_opd && b->section != synthetic_opd) |
2594 | return -1; | |
2595 | if (a->section != synthetic_opd && b->section == synthetic_opd) | |
2596 | return 1; | |
2597 | ||
699733f6 | 2598 | /* then other code symbols. */ |
90e3cdf2 JJ |
2599 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
2600 | == (SEC_CODE | SEC_ALLOC) | |
2601 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2602 | != (SEC_CODE | SEC_ALLOC)) | |
2603 | return -1; | |
2604 | ||
2605 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2606 | != (SEC_CODE | SEC_ALLOC) | |
2607 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2608 | == (SEC_CODE | SEC_ALLOC)) | |
2609 | return 1; | |
2610 | ||
2611 | if (synthetic_relocatable) | |
2612 | { | |
2613 | if (a->section->id < b->section->id) | |
2614 | return -1; | |
2615 | ||
2616 | if (a->section->id > b->section->id) | |
2617 | return 1; | |
2618 | } | |
2619 | ||
2620 | if (a->value + a->section->vma < b->value + b->section->vma) | |
2621 | return -1; | |
2622 | ||
2623 | if (a->value + a->section->vma > b->value + b->section->vma) | |
2624 | return 1; | |
2625 | ||
2626 | return 0; | |
2627 | } | |
2628 | ||
699733f6 | 2629 | /* Search SYMS for a symbol of the given VALUE. */ |
90e3cdf2 | 2630 | |
699733f6 AM |
2631 | static asymbol * |
2632 | sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value) | |
90e3cdf2 | 2633 | { |
699733f6 | 2634 | long mid; |
90e3cdf2 | 2635 | |
699733f6 AM |
2636 | if (id == -1) |
2637 | { | |
2638 | while (lo < hi) | |
2639 | { | |
2640 | mid = (lo + hi) >> 1; | |
2641 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
2642 | lo = mid + 1; | |
2643 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
2644 | hi = mid; | |
2645 | else | |
2646 | return syms[mid]; | |
2647 | } | |
2648 | } | |
2649 | else | |
2650 | { | |
2651 | while (lo < hi) | |
2652 | { | |
2653 | mid = (lo + hi) >> 1; | |
2654 | if (syms[mid]->section->id < id) | |
2655 | lo = mid + 1; | |
2656 | else if (syms[mid]->section->id > id) | |
2657 | hi = mid; | |
2658 | else if (syms[mid]->value < value) | |
2659 | lo = mid + 1; | |
2660 | else if (syms[mid]->value > value) | |
2661 | hi = mid; | |
2662 | else | |
2663 | return syms[mid]; | |
2664 | } | |
2665 | } | |
2666 | return NULL; | |
90e3cdf2 JJ |
2667 | } |
2668 | ||
699733f6 AM |
2669 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
2670 | entry syms. */ | |
90e3cdf2 JJ |
2671 | |
2672 | static long | |
a7535cf3 AM |
2673 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
2674 | long static_count, asymbol **static_syms, | |
2675 | long dyn_count, asymbol **dyn_syms, | |
c9727e01 | 2676 | asymbol **ret) |
90e3cdf2 JJ |
2677 | { |
2678 | asymbol *s; | |
699733f6 AM |
2679 | long i; |
2680 | long count; | |
90e3cdf2 | 2681 | char *names; |
a7535cf3 | 2682 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
699733f6 | 2683 | asection *opd; |
90e3cdf2 | 2684 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
a7535cf3 | 2685 | asymbol **syms; |
90e3cdf2 JJ |
2686 | |
2687 | *ret = NULL; | |
2688 | ||
2689 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
2690 | if (opd == NULL) | |
2691 | return 0; | |
2692 | ||
a7535cf3 | 2693 | symcount = static_count; |
c9727e01 | 2694 | if (!relocatable) |
a7535cf3 | 2695 | symcount += dyn_count; |
90e3cdf2 | 2696 | if (symcount == 0) |
c9727e01 | 2697 | return 0; |
90e3cdf2 | 2698 | |
a7535cf3 AM |
2699 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
2700 | if (syms == NULL) | |
7356fed5 | 2701 | return -1; |
a7535cf3 AM |
2702 | |
2703 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
2704 | { | |
2705 | /* Use both symbol tables. */ | |
2706 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
2707 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
2708 | } | |
2709 | else if (!relocatable && static_count == 0) | |
2710 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
2711 | else | |
2712 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
2713 | ||
90e3cdf2 JJ |
2714 | synthetic_opd = opd; |
2715 | synthetic_relocatable = relocatable; | |
595da8c5 | 2716 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
90e3cdf2 | 2717 | |
c9727e01 AM |
2718 | if (!relocatable && symcount > 1) |
2719 | { | |
2720 | long j; | |
2721 | /* Trim duplicate syms, since we may have merged the normal and | |
2722 | dynamic symbols. Actually, we only care about syms that have | |
3b36f7e6 | 2723 | different values, so trim any with the same value. */ |
c9727e01 AM |
2724 | for (i = 1, j = 1; i < symcount; ++i) |
2725 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
2726 | != syms[i]->value + syms[i]->section->vma) | |
2727 | syms[j++] = syms[i]; | |
2728 | symcount = j; | |
2729 | } | |
2730 | ||
699733f6 AM |
2731 | i = 0; |
2732 | if (syms[i]->section == opd) | |
2733 | ++i; | |
2734 | codesecsym = i; | |
90e3cdf2 | 2735 | |
699733f6 AM |
2736 | for (; i < symcount; ++i) |
2737 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2738 | != (SEC_CODE | SEC_ALLOC)) | |
2739 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
2740 | break; | |
2741 | codesecsymend = i; | |
90e3cdf2 | 2742 | |
699733f6 AM |
2743 | for (; i < symcount; ++i) |
2744 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
2745 | break; | |
2746 | secsymend = i; | |
90e3cdf2 | 2747 | |
699733f6 AM |
2748 | for (; i < symcount; ++i) |
2749 | if (syms[i]->section != opd) | |
2750 | break; | |
2751 | opdsymend = i; | |
90e3cdf2 | 2752 | |
699733f6 AM |
2753 | for (; i < symcount; ++i) |
2754 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2755 | != (SEC_CODE | SEC_ALLOC)) | |
2756 | break; | |
2757 | symcount = i; | |
2758 | ||
c9727e01 | 2759 | count = 0; |
699733f6 | 2760 | if (opdsymend == secsymend) |
c9727e01 | 2761 | goto done; |
90e3cdf2 | 2762 | |
699733f6 | 2763 | if (relocatable) |
90e3cdf2 | 2764 | { |
699733f6 AM |
2765 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
2766 | arelent *r; | |
2767 | size_t size; | |
2768 | long relcount; | |
90e3cdf2 | 2769 | |
699733f6 | 2770 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
90e3cdf2 | 2771 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
7356fed5 | 2772 | if (relcount == 0) |
c9727e01 | 2773 | goto done; |
90e3cdf2 | 2774 | |
7356fed5 AM |
2775 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
2776 | { | |
2777 | count = -1; | |
2778 | goto done; | |
2779 | } | |
2780 | ||
699733f6 | 2781 | size = 0; |
595da8c5 | 2782 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
699733f6 AM |
2783 | { |
2784 | asymbol *sym; | |
90e3cdf2 | 2785 | |
595da8c5 | 2786 | while (r < opd->relocation + relcount |
699733f6 AM |
2787 | && r->address < syms[i]->value + opd->vma) |
2788 | ++r; | |
90e3cdf2 | 2789 | |
595da8c5 | 2790 | if (r == opd->relocation + relcount) |
699733f6 | 2791 | break; |
90e3cdf2 | 2792 | |
699733f6 AM |
2793 | if (r->address != syms[i]->value + opd->vma) |
2794 | continue; | |
90e3cdf2 | 2795 | |
699733f6 AM |
2796 | if (r->howto->type != R_PPC64_ADDR64) |
2797 | continue; | |
90e3cdf2 | 2798 | |
699733f6 AM |
2799 | sym = *r->sym_ptr_ptr; |
2800 | if (!sym_exists_at (syms, opdsymend, symcount, | |
2801 | sym->section->id, sym->value + r->addend)) | |
2802 | { | |
2803 | ++count; | |
2804 | size += sizeof (asymbol); | |
2805 | size += strlen (syms[i]->name) + 2; | |
2806 | } | |
2807 | } | |
90e3cdf2 | 2808 | |
699733f6 AM |
2809 | s = *ret = bfd_malloc (size); |
2810 | if (s == NULL) | |
2811 | { | |
7356fed5 | 2812 | count = -1; |
c9727e01 | 2813 | goto done; |
699733f6 | 2814 | } |
90e3cdf2 | 2815 | |
699733f6 | 2816 | names = (char *) (s + count); |
90e3cdf2 | 2817 | |
595da8c5 | 2818 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
90e3cdf2 | 2819 | { |
699733f6 | 2820 | asymbol *sym; |
90e3cdf2 | 2821 | |
595da8c5 | 2822 | while (r < opd->relocation + relcount |
699733f6 AM |
2823 | && r->address < syms[i]->value + opd->vma) |
2824 | ++r; | |
90e3cdf2 | 2825 | |
595da8c5 | 2826 | if (r == opd->relocation + relcount) |
699733f6 AM |
2827 | break; |
2828 | ||
2829 | if (r->address != syms[i]->value + opd->vma) | |
2830 | continue; | |
2831 | ||
2832 | if (r->howto->type != R_PPC64_ADDR64) | |
2833 | continue; | |
90e3cdf2 | 2834 | |
699733f6 AM |
2835 | sym = *r->sym_ptr_ptr; |
2836 | if (!sym_exists_at (syms, opdsymend, symcount, | |
2837 | sym->section->id, sym->value + r->addend)) | |
2838 | { | |
2839 | size_t len; | |
2840 | ||
2841 | *s = *syms[i]; | |
2842 | s->section = sym->section; | |
2843 | s->value = sym->value + r->addend; | |
2844 | s->name = names; | |
2845 | *names++ = '.'; | |
2846 | len = strlen (syms[i]->name); | |
2847 | memcpy (names, syms[i]->name, len + 1); | |
2848 | names += len + 1; | |
2849 | s++; | |
2850 | } | |
2851 | } | |
2852 | } | |
2853 | else | |
90e3cdf2 | 2854 | { |
699733f6 AM |
2855 | bfd_byte *contents; |
2856 | size_t size; | |
90e3cdf2 | 2857 | |
699733f6 AM |
2858 | if (!bfd_malloc_and_get_section (abfd, opd, &contents)) |
2859 | { | |
2860 | if (contents) | |
c9727e01 AM |
2861 | { |
2862 | free_contents_and_exit: | |
2863 | free (contents); | |
2864 | } | |
7356fed5 | 2865 | count = -1; |
c9727e01 | 2866 | goto done; |
699733f6 | 2867 | } |
90e3cdf2 | 2868 | |
699733f6 AM |
2869 | size = 0; |
2870 | for (i = secsymend; i < opdsymend; ++i) | |
2871 | { | |
2872 | bfd_vma ent; | |
90e3cdf2 | 2873 | |
699733f6 AM |
2874 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
2875 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
2876 | { | |
2877 | ++count; | |
2878 | size += sizeof (asymbol); | |
2879 | size += strlen (syms[i]->name) + 2; | |
2880 | } | |
2881 | } | |
90e3cdf2 | 2882 | |
699733f6 AM |
2883 | s = *ret = bfd_malloc (size); |
2884 | if (s == NULL) | |
7356fed5 | 2885 | goto free_contents_and_exit; |
90e3cdf2 | 2886 | |
699733f6 | 2887 | names = (char *) (s + count); |
90e3cdf2 | 2888 | |
699733f6 | 2889 | for (i = secsymend; i < opdsymend; ++i) |
90e3cdf2 | 2890 | { |
699733f6 | 2891 | bfd_vma ent; |
90e3cdf2 | 2892 | |
699733f6 AM |
2893 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
2894 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
90e3cdf2 | 2895 | { |
c9727e01 | 2896 | long lo, hi; |
699733f6 | 2897 | size_t len; |
c9727e01 | 2898 | asection *sec = abfd->sections; |
90e3cdf2 | 2899 | |
699733f6 AM |
2900 | *s = *syms[i]; |
2901 | lo = codesecsym; | |
2902 | hi = codesecsymend; | |
2903 | while (lo < hi) | |
2904 | { | |
c9727e01 | 2905 | long mid = (lo + hi) >> 1; |
699733f6 AM |
2906 | if (syms[mid]->section->vma < ent) |
2907 | lo = mid + 1; | |
2908 | else if (syms[mid]->section->vma > ent) | |
2909 | hi = mid; | |
2910 | else | |
c9727e01 AM |
2911 | { |
2912 | sec = syms[mid]->section; | |
2913 | break; | |
2914 | } | |
699733f6 AM |
2915 | } |
2916 | ||
c9727e01 | 2917 | if (lo >= hi && lo > codesecsym) |
699733f6 | 2918 | sec = syms[lo - 1]->section; |
699733f6 AM |
2919 | |
2920 | for (; sec != NULL; sec = sec->next) | |
2921 | { | |
2922 | if (sec->vma > ent) | |
2923 | break; | |
2924 | if ((sec->flags & SEC_ALLOC) == 0 | |
2925 | || (sec->flags & SEC_LOAD) == 0) | |
2926 | break; | |
2927 | if ((sec->flags & SEC_CODE) != 0) | |
2928 | s->section = sec; | |
2929 | } | |
2930 | s->value = ent - s->section->vma; | |
2931 | s->name = names; | |
2932 | *names++ = '.'; | |
2933 | len = strlen (syms[i]->name); | |
2934 | memcpy (names, syms[i]->name, len + 1); | |
2935 | names += len + 1; | |
2936 | s++; | |
90e3cdf2 | 2937 | } |
90e3cdf2 | 2938 | } |
699733f6 | 2939 | free (contents); |
90e3cdf2 JJ |
2940 | } |
2941 | ||
c9727e01 | 2942 | done: |
a7535cf3 | 2943 | free (syms); |
90e3cdf2 JJ |
2944 | return count; |
2945 | } | |
5bd4f169 | 2946 | \f |
65f38f15 AM |
2947 | /* The following functions are specific to the ELF linker, while |
2948 | functions above are used generally. Those named ppc64_elf_* are | |
2949 | called by the main ELF linker code. They appear in this file more | |
2950 | or less in the order in which they are called. eg. | |
2951 | ppc64_elf_check_relocs is called early in the link process, | |
2952 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2953 | called. |
2954 | ||
2955 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2956 | functions have both a function code symbol and a function descriptor | |
2957 | symbol. A call to foo in a relocatable object file looks like: | |
2958 | ||
2959 | . .text | |
2960 | . x: | |
2961 | . bl .foo | |
2962 | . nop | |
2963 | ||
2964 | The function definition in another object file might be: | |
2965 | ||
2966 | . .section .opd | |
2967 | . foo: .quad .foo | |
2968 | . .quad .TOC.@tocbase | |
2969 | . .quad 0 | |
2970 | . | |
2971 | . .text | |
2972 | . .foo: blr | |
2973 | ||
2974 | When the linker resolves the call during a static link, the branch | |
2975 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2976 | If the function definition is in a shared library, things are a little | |
2977 | different: The call goes via a plt call stub, the opd information gets | |
2978 | copied to the plt, and the linker patches the nop. | |
2979 | ||
2980 | . x: | |
2981 | . bl .foo_stub | |
2982 | . ld 2,40(1) | |
2983 | . | |
2984 | . | |
2985 | . .foo_stub: | |
2986 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2987 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2988 | . std 2,40(1) # this is the general idea |
2989 | . ld 11,0(12) | |
2990 | . ld 2,8(12) | |
2991 | . mtctr 11 | |
2992 | . ld 11,16(12) | |
2993 | . bctr | |
2994 | . | |
2995 | . .section .plt | |
2996 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2997 | ||
2998 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2999 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
3000 | copying. | |
3001 | ||
3002 | What are the difficulties here? Well, firstly, the relocations | |
3003 | examined by the linker in check_relocs are against the function code | |
3004 | sym .foo, while the dynamic relocation in the plt is emitted against | |
3005 | the function descriptor symbol, foo. Somewhere along the line, we need | |
3006 | to carefully copy dynamic link information from one symbol to the other. | |
3007 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
3008 | symbol as is normal for most other backends. We need foo dynamic | |
3009 | instead, at least for an application final link. However, when | |
3010 | creating a shared library containing foo, we need to have both symbols | |
3011 | dynamic so that references to .foo are satisfied during the early | |
3012 | stages of linking. Otherwise the linker might decide to pull in a | |
8387904d AM |
3013 | definition from some other object, eg. a static library. |
3014 | ||
3015 | Update: As of August 2004, we support a new convention. Function | |
3016 | calls may use the function descriptor symbol, ie. "bl foo". This | |
3017 | behaves exactly as "bl .foo". */ | |
65f38f15 AM |
3018 | |
3019 | /* The linker needs to keep track of the number of relocs that it | |
3020 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
3021 | This is so that it can later discard them if they are found to be | |
3022 | unnecessary. We store the information in a field extending the | |
3023 | regular ELF linker hash table. */ | |
3024 | ||
3025 | struct ppc_dyn_relocs | |
3026 | { | |
3027 | struct ppc_dyn_relocs *next; | |
3028 | ||
3029 | /* The input section of the reloc. */ | |
3030 | asection *sec; | |
3031 | ||
3032 | /* Total number of relocs copied for the input section. */ | |
3033 | bfd_size_type count; | |
3034 | ||
3035 | /* Number of pc-relative relocs copied for the input section. */ | |
3036 | bfd_size_type pc_count; | |
3037 | }; | |
3038 | ||
411e1bfb AM |
3039 | /* Track GOT entries needed for a given symbol. We might need more |
3040 | than one got entry per symbol. */ | |
3041 | struct got_entry | |
3042 | { | |
3043 | struct got_entry *next; | |
3044 | ||
e7b938ca | 3045 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
3046 | bfd_vma addend; |
3047 | ||
e717da7e AM |
3048 | /* Unlike other ELF targets, we use separate GOT entries for the same |
3049 | symbol referenced from different input files. This is to support | |
3050 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
3051 | from one input file to another. | |
3052 | ||
3053 | Point to the BFD owning this GOT entry. */ | |
3054 | bfd *owner; | |
3055 | ||
3056 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
3057 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
3058 | char tls_type; | |
3059 | ||
e7b938ca | 3060 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
3061 | union |
3062 | { | |
3063 | bfd_signed_vma refcount; | |
3064 | bfd_vma offset; | |
3065 | } got; | |
411e1bfb AM |
3066 | }; |
3067 | ||
3068 | /* The same for PLT. */ | |
3069 | struct plt_entry | |
3070 | { | |
3071 | struct plt_entry *next; | |
3072 | ||
3073 | bfd_vma addend; | |
3074 | ||
3075 | union | |
3076 | { | |
3077 | bfd_signed_vma refcount; | |
3078 | bfd_vma offset; | |
3079 | } plt; | |
3080 | }; | |
3081 | ||
65f38f15 | 3082 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
3083 | selects those that must be copied when linking a shared library, |
3084 | even when the symbol is local. */ | |
65f38f15 | 3085 | |
411e1bfb | 3086 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
3087 | ((RTYPE) != R_PPC64_REL32 \ |
3088 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 3089 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 3090 | |
f4656909 AM |
3091 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3092 | copying dynamic variables from a shared lib into an app's dynbss | |
3093 | section, and instead use a dynamic relocation to point into the | |
5d35169e AM |
3094 | shared lib. With code that gcc generates, it's vital that this be |
3095 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
3096 | the address of a function descriptor, which resides in the .opd | |
3097 | section. gcc uses the descriptor directly rather than going via the | |
3098 | GOT as some other ABI's do, which means that initialized function | |
3099 | pointers must reference the descriptor. Thus, a function pointer | |
3100 | initialized to the address of a function in a shared library will | |
3101 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
4cc11e76 | 3102 | redefines the function descriptor symbol to point to the copy. This |
5d35169e AM |
3103 | presents a problem as a plt entry for that function is also |
3104 | initialized from the function descriptor symbol and the copy reloc | |
3105 | may not be initialized first. */ | |
a23b6845 | 3106 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 3107 | |
721956f4 AM |
3108 | /* Section name for stubs is the associated section name plus this |
3109 | string. */ | |
3110 | #define STUB_SUFFIX ".stub" | |
3111 | ||
3112 | /* Linker stubs. | |
3113 | ppc_stub_long_branch: | |
3114 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
3115 | destination, but a 24 bit branch in a stub section will reach. | |
3116 | . b dest | |
3117 | ||
3118 | ppc_stub_plt_branch: | |
3119 | Similar to the above, but a 24 bit branch in the stub section won't | |
3120 | reach its destination. | |
87e226ce AM |
3121 | . addis %r12,%r2,xxx@toc@ha |
3122 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
3123 | . mtctr %r11 |
3124 | . bctr | |
3125 | ||
3126 | ppc_stub_plt_call: | |
2c66dc6c AM |
3127 | Used to call a function in a shared library. If it so happens that |
3128 | the plt entry referenced crosses a 64k boundary, then an extra | |
3129 | "addis %r12,%r12,1" will be inserted before the load at xxx+8 or | |
3130 | xxx+16 as appropriate. | |
87e226ce | 3131 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 3132 | . std %r2,40(%r1) |
87e226ce AM |
3133 | . ld %r11,xxx+0@toc@l(%r12) |
3134 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 3135 | . mtctr %r11 |
87e226ce | 3136 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 3137 | . bctr |
ad8e1ba5 AM |
3138 | |
3139 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
3140 | code to adjust the value and save r2 to support multiple toc sections. | |
3141 | A ppc_stub_long_branch with an r2 offset looks like: | |
3142 | . std %r2,40(%r1) | |
3143 | . addis %r2,%r2,off@ha | |
3144 | . addi %r2,%r2,off@l | |
3145 | . b dest | |
3146 | ||
3147 | A ppc_stub_plt_branch with an r2 offset looks like: | |
3148 | . std %r2,40(%r1) | |
3149 | . addis %r12,%r2,xxx@toc@ha | |
3150 | . ld %r11,xxx@toc@l(%r12) | |
3151 | . addis %r2,%r2,off@ha | |
3152 | . addi %r2,%r2,off@l | |
3153 | . mtctr %r11 | |
3154 | . bctr | |
721956f4 AM |
3155 | */ |
3156 | ||
3157 | enum ppc_stub_type { | |
3158 | ppc_stub_none, | |
3159 | ppc_stub_long_branch, | |
ad8e1ba5 | 3160 | ppc_stub_long_branch_r2off, |
721956f4 | 3161 | ppc_stub_plt_branch, |
ad8e1ba5 | 3162 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
3163 | ppc_stub_plt_call |
3164 | }; | |
3165 | ||
3166 | struct ppc_stub_hash_entry { | |
3167 | ||
3168 | /* Base hash table entry structure. */ | |
3169 | struct bfd_hash_entry root; | |
3170 | ||
ad8e1ba5 AM |
3171 | enum ppc_stub_type stub_type; |
3172 | ||
721956f4 AM |
3173 | /* The stub section. */ |
3174 | asection *stub_sec; | |
3175 | ||
3176 | /* Offset within stub_sec of the beginning of this stub. */ | |
3177 | bfd_vma stub_offset; | |
3178 | ||
3179 | /* Given the symbol's value and its section we can determine its final | |
3180 | value when building the stubs (so the stub knows where to jump. */ | |
3181 | bfd_vma target_value; | |
3182 | asection *target_section; | |
3183 | ||
721956f4 AM |
3184 | /* The symbol table entry, if any, that this was derived from. */ |
3185 | struct ppc_link_hash_entry *h; | |
3186 | ||
411e1bfb AM |
3187 | /* And the reloc addend that this was derived from. */ |
3188 | bfd_vma addend; | |
3189 | ||
721956f4 AM |
3190 | /* Where this stub is being called from, or, in the case of combined |
3191 | stub sections, the first input section in the group. */ | |
3192 | asection *id_sec; | |
3193 | }; | |
3194 | ||
3195 | struct ppc_branch_hash_entry { | |
3196 | ||
3197 | /* Base hash table entry structure. */ | |
3198 | struct bfd_hash_entry root; | |
3199 | ||
c456f082 | 3200 | /* Offset within branch lookup table. */ |
721956f4 AM |
3201 | unsigned int offset; |
3202 | ||
3203 | /* Generation marker. */ | |
3204 | unsigned int iter; | |
3205 | }; | |
65f38f15 AM |
3206 | |
3207 | struct ppc_link_hash_entry | |
3208 | { | |
3209 | struct elf_link_hash_entry elf; | |
3210 | ||
721956f4 AM |
3211 | /* A pointer to the most recently used stub hash entry against this |
3212 | symbol. */ | |
3213 | struct ppc_stub_hash_entry *stub_cache; | |
3214 | ||
65f38f15 AM |
3215 | /* Track dynamic relocs copied for this symbol. */ |
3216 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 3217 | |
721956f4 | 3218 | /* Link between function code and descriptor symbols. */ |
34814b9f | 3219 | struct ppc_link_hash_entry *oh; |
721956f4 | 3220 | |
e86ce104 AM |
3221 | /* Flag function code and descriptor symbols. */ |
3222 | unsigned int is_func:1; | |
3223 | unsigned int is_func_descriptor:1; | |
908b32fc | 3224 | unsigned int fake:1; |
411e1bfb | 3225 | |
c5614fa4 AM |
3226 | /* Whether global opd/toc sym has been adjusted or not. |
3227 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
3228 | should be set for all globals defined in any opd/toc section. */ | |
754021d0 AM |
3229 | unsigned int adjust_done:1; |
3230 | ||
99877b66 AM |
3231 | /* Set if we twiddled this symbol to weak at some stage. */ |
3232 | unsigned int was_undefined:1; | |
3233 | ||
411e1bfb | 3234 | /* Contexts in which symbol is used in the GOT (or TOC). |
e7b938ca AM |
3235 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
3236 | corresponding relocs are encountered during check_relocs. | |
3237 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3238 | indicate the corresponding GOT entry type is not needed. | |
3239 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
3240 | a TPREL one. We use a separate flag rather than setting TPREL | |
3241 | just for convenience in distinguishing the two cases. */ | |
3242 | #define TLS_GD 1 /* GD reloc. */ | |
3243 | #define TLS_LD 2 /* LD reloc. */ | |
3244 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3245 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3246 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3247 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
3248 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
3249 | char tls_mask; | |
65f38f15 AM |
3250 | }; |
3251 | ||
3252 | /* ppc64 ELF linker hash table. */ | |
3253 | ||
3254 | struct ppc_link_hash_table | |
3255 | { | |
3256 | struct elf_link_hash_table elf; | |
3257 | ||
721956f4 AM |
3258 | /* The stub hash table. */ |
3259 | struct bfd_hash_table stub_hash_table; | |
3260 | ||
3261 | /* Another hash table for plt_branch stubs. */ | |
3262 | struct bfd_hash_table branch_hash_table; | |
3263 | ||
3264 | /* Linker stub bfd. */ | |
3265 | bfd *stub_bfd; | |
3266 | ||
3267 | /* Linker call-backs. */ | |
4ce794b7 AM |
3268 | asection * (*add_stub_section) (const char *, asection *); |
3269 | void (*layout_sections_again) (void); | |
721956f4 AM |
3270 | |
3271 | /* Array to keep track of which stub sections have been created, and | |
3272 | information on stub grouping. */ | |
3273 | struct map_stub { | |
3274 | /* This is the section to which stubs in the group will be attached. */ | |
3275 | asection *link_sec; | |
3276 | /* The stub section. */ | |
3277 | asection *stub_sec; | |
ad8e1ba5 AM |
3278 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
3279 | bfd_vma toc_off; | |
721956f4 AM |
3280 | } *stub_group; |
3281 | ||
ad8e1ba5 AM |
3282 | /* Temp used when calculating TOC pointers. */ |
3283 | bfd_vma toc_curr; | |
3284 | ||
8f3bab57 AM |
3285 | /* Highest input section id. */ |
3286 | int top_id; | |
3287 | ||
734b6cf9 AM |
3288 | /* Highest output section index. */ |
3289 | int top_index; | |
3290 | ||
3291 | /* List of input sections for each output section. */ | |
3292 | asection **input_list; | |
721956f4 | 3293 | |
65f38f15 | 3294 | /* Short-cuts to get to dynamic linker sections. */ |
4ce794b7 | 3295 | asection *got; |
4ce794b7 AM |
3296 | asection *plt; |
3297 | asection *relplt; | |
3298 | asection *dynbss; | |
3299 | asection *relbss; | |
3300 | asection *glink; | |
82bd7b59 | 3301 | asection *sfpr; |
4ce794b7 AM |
3302 | asection *brlt; |
3303 | asection *relbrlt; | |
ec338859 | 3304 | |
8387904d AM |
3305 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
3306 | struct ppc_link_hash_entry *tls_get_addr; | |
3307 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
411e1bfb | 3308 | |
9b5ecbd0 AM |
3309 | /* Statistics. */ |
3310 | unsigned long stub_count[ppc_stub_plt_call]; | |
3311 | ||
ee75fd95 AM |
3312 | /* Number of stubs against global syms. */ |
3313 | unsigned long stub_globals; | |
3314 | ||
ad8e1ba5 | 3315 | /* Set if we should emit symbols for stubs. */ |
99877b66 | 3316 | unsigned int emit_stub_syms:1; |
ad8e1ba5 | 3317 | |
4c52953f AM |
3318 | /* Support for multiple toc sections. */ |
3319 | unsigned int no_multi_toc:1; | |
3320 | unsigned int multi_toc_needed:1; | |
3321 | ||
5d1634d7 | 3322 | /* Set on error. */ |
99877b66 | 3323 | unsigned int stub_error:1; |
721956f4 AM |
3324 | |
3325 | /* Flag set when small branches are detected. Used to | |
3326 | select suitable defaults for the stub group size. */ | |
99877b66 AM |
3327 | unsigned int has_14bit_branch:1; |
3328 | ||
3329 | /* Temp used by ppc64_elf_check_directives. */ | |
3330 | unsigned int twiddled_syms:1; | |
721956f4 AM |
3331 | |
3332 | /* Incremented every time we size stubs. */ | |
3333 | unsigned int stub_iteration; | |
5d1634d7 | 3334 | |
ec338859 AM |
3335 | /* Small local sym to section mapping cache. */ |
3336 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
3337 | }; |
3338 | ||
4c52953f AM |
3339 | /* Rename some of the generic section flags to better document how they |
3340 | are used here. */ | |
3341 | #define has_toc_reloc has_gp_reloc | |
3342 | #define makes_toc_func_call need_finalize_relax | |
3343 | #define call_check_in_progress reloc_done | |
3344 | ||
65f38f15 AM |
3345 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
3346 | ||
3347 | #define ppc_hash_table(p) \ | |
3348 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
3349 | ||
721956f4 AM |
3350 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
3351 | ((struct ppc_stub_hash_entry *) \ | |
3352 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
3353 | ||
3354 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
3355 | ((struct ppc_branch_hash_entry *) \ | |
3356 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
3357 | ||
3358 | /* Create an entry in the stub hash table. */ | |
3359 | ||
3360 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3361 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
3362 | struct bfd_hash_table *table, | |
3363 | const char *string) | |
721956f4 AM |
3364 | { |
3365 | /* Allocate the structure if it has not already been allocated by a | |
3366 | subclass. */ | |
3367 | if (entry == NULL) | |
3368 | { | |
3369 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
3370 | if (entry == NULL) | |
3371 | return entry; | |
3372 | } | |
3373 | ||
3374 | /* Call the allocation method of the superclass. */ | |
3375 | entry = bfd_hash_newfunc (entry, table, string); | |
3376 | if (entry != NULL) | |
3377 | { | |
3378 | struct ppc_stub_hash_entry *eh; | |
3379 | ||
3380 | /* Initialize the local fields. */ | |
3381 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 3382 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
3383 | eh->stub_sec = NULL; |
3384 | eh->stub_offset = 0; | |
3385 | eh->target_value = 0; | |
3386 | eh->target_section = NULL; | |
721956f4 AM |
3387 | eh->h = NULL; |
3388 | eh->id_sec = NULL; | |
3389 | } | |
3390 | ||
3391 | return entry; | |
3392 | } | |
3393 | ||
3394 | /* Create an entry in the branch hash table. */ | |
3395 | ||
3396 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3397 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
3398 | struct bfd_hash_table *table, | |
3399 | const char *string) | |
721956f4 AM |
3400 | { |
3401 | /* Allocate the structure if it has not already been allocated by a | |
3402 | subclass. */ | |
3403 | if (entry == NULL) | |
3404 | { | |
3405 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
3406 | if (entry == NULL) | |
3407 | return entry; | |
3408 | } | |
3409 | ||
3410 | /* Call the allocation method of the superclass. */ | |
3411 | entry = bfd_hash_newfunc (entry, table, string); | |
3412 | if (entry != NULL) | |
3413 | { | |
3414 | struct ppc_branch_hash_entry *eh; | |
3415 | ||
3416 | /* Initialize the local fields. */ | |
3417 | eh = (struct ppc_branch_hash_entry *) entry; | |
3418 | eh->offset = 0; | |
3419 | eh->iter = 0; | |
3420 | } | |
3421 | ||
3422 | return entry; | |
3423 | } | |
3424 | ||
65f38f15 AM |
3425 | /* Create an entry in a ppc64 ELF linker hash table. */ |
3426 | ||
3427 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3428 | link_hash_newfunc (struct bfd_hash_entry *entry, |
3429 | struct bfd_hash_table *table, | |
3430 | const char *string) | |
65f38f15 AM |
3431 | { |
3432 | /* Allocate the structure if it has not already been allocated by a | |
3433 | subclass. */ | |
3434 | if (entry == NULL) | |
3435 | { | |
3436 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
3437 | if (entry == NULL) | |
3438 | return entry; | |
3439 | } | |
3440 | ||
3441 | /* Call the allocation method of the superclass. */ | |
3442 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3443 | if (entry != NULL) | |
3444 | { | |
3445 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
3446 | ||
908b32fc AM |
3447 | memset (&eh->stub_cache, 0, |
3448 | (sizeof (struct ppc_link_hash_entry) | |
3449 | - offsetof (struct ppc_link_hash_entry, stub_cache))); | |
65f38f15 AM |
3450 | } |
3451 | ||
3452 | return entry; | |
3453 | } | |
3454 | ||
3455 | /* Create a ppc64 ELF linker hash table. */ | |
3456 | ||
3457 | static struct bfd_link_hash_table * | |
4ce794b7 | 3458 | ppc64_elf_link_hash_table_create (bfd *abfd) |
65f38f15 AM |
3459 | { |
3460 | struct ppc_link_hash_table *htab; | |
3461 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
3462 | ||
4ce794b7 | 3463 | htab = bfd_zmalloc (amt); |
65f38f15 AM |
3464 | if (htab == NULL) |
3465 | return NULL; | |
3466 | ||
3467 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
3468 | { | |
e2d34d7d | 3469 | free (htab); |
65f38f15 AM |
3470 | return NULL; |
3471 | } | |
3472 | ||
721956f4 AM |
3473 | /* Init the stub hash table too. */ |
3474 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
3475 | return NULL; | |
3476 | ||
3477 | /* And the branch hash table. */ | |
3478 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
3479 | return NULL; | |
3480 | ||
3254fd24 AM |
3481 | /* Initializing two fields of the union is just cosmetic. We really |
3482 | only care about glist, but when compiled on a 32-bit host the | |
3483 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
3484 | debugger inspection of these fields look nicer. */ | |
a6aa5195 AM |
3485 | htab->elf.init_got_refcount.refcount = 0; |
3486 | htab->elf.init_got_refcount.glist = NULL; | |
3487 | htab->elf.init_plt_refcount.refcount = 0; | |
3488 | htab->elf.init_plt_refcount.glist = NULL; | |
3489 | htab->elf.init_got_offset.offset = 0; | |
3490 | htab->elf.init_got_offset.glist = NULL; | |
3491 | htab->elf.init_plt_offset.offset = 0; | |
3492 | htab->elf.init_plt_offset.glist = NULL; | |
3254fd24 | 3493 | |
65f38f15 AM |
3494 | return &htab->elf.root; |
3495 | } | |
3496 | ||
721956f4 AM |
3497 | /* Free the derived linker hash table. */ |
3498 | ||
3499 | static void | |
4ce794b7 | 3500 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
721956f4 AM |
3501 | { |
3502 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
3503 | ||
3504 | bfd_hash_table_free (&ret->stub_hash_table); | |
3505 | bfd_hash_table_free (&ret->branch_hash_table); | |
3506 | _bfd_generic_link_hash_table_free (hash); | |
3507 | } | |
3508 | ||
e717da7e AM |
3509 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
3510 | ||
3511 | void | |
3512 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) | |
3513 | { | |
3514 | struct ppc_link_hash_table *htab; | |
3515 | ||
3516 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
3517 | ||
3518 | /* Always hook our dynamic sections into the first bfd, which is the | |
3519 | linker created stub bfd. This ensures that the GOT header is at | |
3520 | the start of the output TOC section. */ | |
3521 | htab = ppc_hash_table (info); | |
3522 | htab->stub_bfd = abfd; | |
3523 | htab->elf.dynobj = abfd; | |
3524 | } | |
3525 | ||
721956f4 AM |
3526 | /* Build a name for an entry in the stub hash table. */ |
3527 | ||
3528 | static char * | |
4ce794b7 AM |
3529 | ppc_stub_name (const asection *input_section, |
3530 | const asection *sym_sec, | |
3531 | const struct ppc_link_hash_entry *h, | |
3532 | const Elf_Internal_Rela *rel) | |
721956f4 AM |
3533 | { |
3534 | char *stub_name; | |
3535 | bfd_size_type len; | |
3536 | ||
3537 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3538 | offsets from a sym as a branch target? In fact, we could | |
3539 | probably assume the addend is always zero. */ | |
3540 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3541 | ||
3542 | if (h) | |
3543 | { | |
3544 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3545 | stub_name = bfd_malloc (len); | |
46de2a7c AM |
3546 | if (stub_name == NULL) |
3547 | return stub_name; | |
3548 | ||
3549 | sprintf (stub_name, "%08x.%s+%x", | |
3550 | input_section->id & 0xffffffff, | |
3551 | h->elf.root.root.string, | |
3552 | (int) rel->r_addend & 0xffffffff); | |
721956f4 AM |
3553 | } |
3554 | else | |
3555 | { | |
ad8e1ba5 | 3556 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 | 3557 | stub_name = bfd_malloc (len); |
46de2a7c AM |
3558 | if (stub_name == NULL) |
3559 | return stub_name; | |
3560 | ||
3561 | sprintf (stub_name, "%08x.%x:%x+%x", | |
3562 | input_section->id & 0xffffffff, | |
3563 | sym_sec->id & 0xffffffff, | |
3564 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3565 | (int) rel->r_addend & 0xffffffff); | |
721956f4 | 3566 | } |
ee75fd95 AM |
3567 | if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
3568 | stub_name[len - 2] = 0; | |
721956f4 AM |
3569 | return stub_name; |
3570 | } | |
3571 | ||
3572 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3573 | creating the stub name takes a bit of time. */ | |
3574 | ||
3575 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3576 | ppc_get_stub_entry (const asection *input_section, |
3577 | const asection *sym_sec, | |
039b3fef | 3578 | struct ppc_link_hash_entry *h, |
4ce794b7 AM |
3579 | const Elf_Internal_Rela *rel, |
3580 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3581 | { |
3582 | struct ppc_stub_hash_entry *stub_entry; | |
721956f4 AM |
3583 | const asection *id_sec; |
3584 | ||
3585 | /* If this input section is part of a group of sections sharing one | |
3586 | stub section, then use the id of the first section in the group. | |
3587 | Stub names need to include a section id, as there may well be | |
3588 | more than one stub used to reach say, printf, and we need to | |
3589 | distinguish between them. */ | |
3590 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3591 | ||
3592 | if (h != NULL && h->stub_cache != NULL | |
3593 | && h->stub_cache->h == h | |
3594 | && h->stub_cache->id_sec == id_sec) | |
3595 | { | |
3596 | stub_entry = h->stub_cache; | |
3597 | } | |
3598 | else | |
3599 | { | |
3600 | char *stub_name; | |
3601 | ||
3602 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3603 | if (stub_name == NULL) | |
3604 | return NULL; | |
3605 | ||
3606 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3607 | stub_name, FALSE, FALSE); |
721956f4 AM |
3608 | if (h != NULL) |
3609 | h->stub_cache = stub_entry; | |
3610 | ||
3611 | free (stub_name); | |
3612 | } | |
3613 | ||
3614 | return stub_entry; | |
3615 | } | |
3616 | ||
3617 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3618 | stub entry are initialised. */ | |
3619 | ||
3620 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3621 | ppc_add_stub (const char *stub_name, |
3622 | asection *section, | |
3623 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3624 | { |
3625 | asection *link_sec; | |
3626 | asection *stub_sec; | |
3627 | struct ppc_stub_hash_entry *stub_entry; | |
3628 | ||
3629 | link_sec = htab->stub_group[section->id].link_sec; | |
3630 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3631 | if (stub_sec == NULL) | |
3632 | { | |
3633 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3634 | if (stub_sec == NULL) | |
3635 | { | |
d4c88bbb | 3636 | size_t namelen; |
721956f4 AM |
3637 | bfd_size_type len; |
3638 | char *s_name; | |
3639 | ||
d4c88bbb AM |
3640 | namelen = strlen (link_sec->name); |
3641 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3642 | s_name = bfd_alloc (htab->stub_bfd, len); |
3643 | if (s_name == NULL) | |
3644 | return NULL; | |
3645 | ||
d4c88bbb AM |
3646 | memcpy (s_name, link_sec->name, namelen); |
3647 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3648 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3649 | if (stub_sec == NULL) | |
3650 | return NULL; | |
3651 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3652 | } | |
3653 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3654 | } | |
3655 | ||
3656 | /* Enter this entry into the linker stub hash table. */ | |
3657 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3658 | TRUE, FALSE); |
721956f4 AM |
3659 | if (stub_entry == NULL) |
3660 | { | |
d003868e AM |
3661 | (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), |
3662 | section->owner, stub_name); | |
721956f4 AM |
3663 | return NULL; |
3664 | } | |
3665 | ||
3666 | stub_entry->stub_sec = stub_sec; | |
3667 | stub_entry->stub_offset = 0; | |
3668 | stub_entry->id_sec = link_sec; | |
3669 | return stub_entry; | |
3670 | } | |
3671 | ||
82bd7b59 AM |
3672 | /* Create sections for linker generated code. */ |
3673 | ||
b34976b6 | 3674 | static bfd_boolean |
4ce794b7 | 3675 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) |
82bd7b59 AM |
3676 | { |
3677 | struct ppc_link_hash_table *htab; | |
3678 | flagword flags; | |
3679 | ||
3680 | htab = ppc_hash_table (info); | |
3681 | ||
3682 | /* Create .sfpr for code to save and restore fp regs. */ | |
3683 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3684 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3496cb2a L |
3685 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", |
3686 | flags); | |
82bd7b59 | 3687 | if (htab->sfpr == NULL |
82bd7b59 | 3688 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) |
b34976b6 | 3689 | return FALSE; |
82bd7b59 | 3690 | |
721956f4 | 3691 | /* Create .glink for lazy dynamic linking support. */ |
3496cb2a L |
3692 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", |
3693 | flags); | |
4ce794b7 | 3694 | if (htab->glink == NULL |
4ce794b7 | 3695 | || ! bfd_set_section_alignment (dynobj, htab->glink, 2)) |
b34976b6 | 3696 | return FALSE; |
82bd7b59 | 3697 | |
c456f082 AM |
3698 | /* Create branch lookup table for plt_branch stubs. */ |
3699 | if (info->shared) | |
3700 | { | |
3701 | flags = (SEC_ALLOC | SEC_LOAD | |
3702 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3703 | htab->brlt | |
3704 | = bfd_make_section_anyway_with_flags (dynobj, ".data.rel.ro.brlt", | |
3705 | flags); | |
3706 | } | |
3707 | else | |
3708 | { | |
3709 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3710 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3711 | htab->brlt | |
3712 | = bfd_make_section_anyway_with_flags (dynobj, ".rodata.brlt", flags); | |
3713 | } | |
3714 | ||
4ce794b7 | 3715 | if (htab->brlt == NULL |
4ce794b7 | 3716 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) |
b34976b6 | 3717 | return FALSE; |
721956f4 | 3718 | |
c456f082 | 3719 | if (info->shared) |
721956f4 AM |
3720 | { |
3721 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3722 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
c456f082 AM |
3723 | htab->relbrlt |
3724 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.data.rel.ro.brlt", | |
3725 | flags); | |
721956f4 | 3726 | } |
c456f082 AM |
3727 | else if (info->emitrelocations) |
3728 | { | |
3729 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3730 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3731 | htab->relbrlt | |
3732 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.rodata.brlt", | |
3733 | flags); | |
3734 | } | |
3735 | else | |
3736 | return TRUE; | |
3737 | ||
3738 | if (!htab->relbrlt | |
3739 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
3740 | return FALSE; | |
3741 | ||
b34976b6 | 3742 | return TRUE; |
82bd7b59 AM |
3743 | } |
3744 | ||
e717da7e AM |
3745 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
3746 | not already done. */ | |
65f38f15 | 3747 | |
b34976b6 | 3748 | static bfd_boolean |
e717da7e | 3749 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
65f38f15 | 3750 | { |
e717da7e AM |
3751 | asection *got, *relgot; |
3752 | flagword flags; | |
3753 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
65f38f15 | 3754 | |
4ce794b7 | 3755 | if (!htab->got) |
e717da7e AM |
3756 | { |
3757 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
3758 | return FALSE; | |
3759 | ||
3760 | htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got"); | |
3761 | if (!htab->got) | |
3762 | abort (); | |
3763 | } | |
3764 | ||
3765 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3766 | | SEC_LINKER_CREATED); | |
3767 | ||
c456f082 | 3768 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
e717da7e | 3769 | if (!got |
e717da7e AM |
3770 | || !bfd_set_section_alignment (abfd, got, 3)) |
3771 | return FALSE; | |
65f38f15 | 3772 | |
c456f082 AM |
3773 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
3774 | flags | SEC_READONLY); | |
e717da7e | 3775 | if (!relgot |
e717da7e | 3776 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
b34976b6 | 3777 | return FALSE; |
e717da7e AM |
3778 | |
3779 | ppc64_elf_tdata (abfd)->got = got; | |
3780 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
b34976b6 | 3781 | return TRUE; |
65f38f15 | 3782 | } |
5bd4f169 | 3783 | |
82bd7b59 | 3784 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3785 | |
b34976b6 | 3786 | static bfd_boolean |
4ce794b7 | 3787 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5bd4f169 | 3788 | { |
65f38f15 | 3789 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3790 | |
65f38f15 | 3791 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3792 | return FALSE; |
65f38f15 | 3793 | |
e717da7e AM |
3794 | htab = ppc_hash_table (info); |
3795 | if (!htab->got) | |
3796 | htab->got = bfd_get_section_by_name (dynobj, ".got"); | |
4ce794b7 AM |
3797 | htab->plt = bfd_get_section_by_name (dynobj, ".plt"); |
3798 | htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3799 | htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
65f38f15 | 3800 | if (!info->shared) |
4ce794b7 | 3801 | htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
65f38f15 | 3802 | |
e717da7e | 3803 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
4ce794b7 | 3804 | || (!info->shared && !htab->relbss)) |
65f38f15 AM |
3805 | abort (); |
3806 | ||
b34976b6 | 3807 | return TRUE; |
5bd4f169 AM |
3808 | } |
3809 | ||
40d16e0b AM |
3810 | /* Merge PLT info on FROM with that on TO. */ |
3811 | ||
3812 | static void | |
3813 | move_plt_plist (struct ppc_link_hash_entry *from, | |
3814 | struct ppc_link_hash_entry *to) | |
3815 | { | |
3816 | if (from->elf.plt.plist != NULL) | |
3817 | { | |
3818 | if (to->elf.plt.plist != NULL) | |
3819 | { | |
3820 | struct plt_entry **entp; | |
3821 | struct plt_entry *ent; | |
3822 | ||
3823 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
3824 | { | |
3825 | struct plt_entry *dent; | |
3826 | ||
3827 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
3828 | if (dent->addend == ent->addend) | |
3829 | { | |
3830 | dent->plt.refcount += ent->plt.refcount; | |
3831 | *entp = ent->next; | |
3832 | break; | |
3833 | } | |
3834 | if (dent == NULL) | |
3835 | entp = &ent->next; | |
3836 | } | |
3837 | *entp = to->elf.plt.plist; | |
3838 | } | |
3839 | ||
3840 | to->elf.plt.plist = from->elf.plt.plist; | |
3841 | from->elf.plt.plist = NULL; | |
3842 | } | |
3843 | } | |
3844 | ||
65f38f15 AM |
3845 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3846 | ||
3847 | static void | |
fcfa13d2 AM |
3848 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
3849 | struct elf_link_hash_entry *dir, | |
3850 | struct elf_link_hash_entry *ind) | |
65f38f15 AM |
3851 | { |
3852 | struct ppc_link_hash_entry *edir, *eind; | |
3853 | ||
3854 | edir = (struct ppc_link_hash_entry *) dir; | |
3855 | eind = (struct ppc_link_hash_entry *) ind; | |
3856 | ||
411e1bfb | 3857 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3858 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3859 | { |
bbd7ec4a AM |
3860 | if (edir->dyn_relocs != NULL) |
3861 | { | |
3862 | struct ppc_dyn_relocs **pp; | |
3863 | struct ppc_dyn_relocs *p; | |
3864 | ||
fcfa13d2 | 3865 | /* Add reloc counts against the indirect sym to the direct sym |
bbd7ec4a AM |
3866 | list. Merge any entries against the same section. */ |
3867 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3868 | { | |
3869 | struct ppc_dyn_relocs *q; | |
3870 | ||
3871 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3872 | if (q->sec == p->sec) | |
3873 | { | |
3874 | q->pc_count += p->pc_count; | |
3875 | q->count += p->count; | |
3876 | *pp = p->next; | |
3877 | break; | |
3878 | } | |
3879 | if (q == NULL) | |
3880 | pp = &p->next; | |
3881 | } | |
3882 | *pp = edir->dyn_relocs; | |
3883 | } | |
3884 | ||
65f38f15 AM |
3885 | edir->dyn_relocs = eind->dyn_relocs; |
3886 | eind->dyn_relocs = NULL; | |
3887 | } | |
65f38f15 | 3888 | |
6349e628 AM |
3889 | edir->is_func |= eind->is_func; |
3890 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
58ac9f71 | 3891 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3892 | |
81848ca0 | 3893 | /* If called to transfer flags for a weakdef during processing |
f5385ebf | 3894 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. |
81848ca0 | 3895 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ |
f5385ebf AM |
3896 | if (!(ELIMINATE_COPY_RELOCS |
3897 | && eind->elf.root.type != bfd_link_hash_indirect | |
3898 | && edir->elf.dynamic_adjusted)) | |
3899 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
81848ca0 | 3900 | |
f5385ebf AM |
3901 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
3902 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3903 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3904 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
6349e628 AM |
3905 | |
3906 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3907 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3908 | return; | |
3909 | ||
81848ca0 AM |
3910 | /* Copy over got entries that we may have already seen to the |
3911 | symbol which just became indirect. */ | |
411e1bfb AM |
3912 | if (eind->elf.got.glist != NULL) |
3913 | { | |
3914 | if (edir->elf.got.glist != NULL) | |
3915 | { | |
3916 | struct got_entry **entp; | |
3917 | struct got_entry *ent; | |
3918 | ||
3919 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3920 | { | |
3921 | struct got_entry *dent; | |
3922 | ||
3923 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3924 | if (dent->addend == ent->addend | |
e717da7e | 3925 | && dent->owner == ent->owner |
411e1bfb AM |
3926 | && dent->tls_type == ent->tls_type) |
3927 | { | |
3928 | dent->got.refcount += ent->got.refcount; | |
3929 | *entp = ent->next; | |
3930 | break; | |
3931 | } | |
3932 | if (dent == NULL) | |
3933 | entp = &ent->next; | |
3934 | } | |
3935 | *entp = edir->elf.got.glist; | |
3936 | } | |
3937 | ||
3938 | edir->elf.got.glist = eind->elf.got.glist; | |
3939 | eind->elf.got.glist = NULL; | |
3940 | } | |
3941 | ||
3942 | /* And plt entries. */ | |
40d16e0b | 3943 | move_plt_plist (eind, edir); |
411e1bfb | 3944 | |
fcfa13d2 | 3945 | if (eind->elf.dynindx != -1) |
411e1bfb | 3946 | { |
fcfa13d2 AM |
3947 | if (edir->elf.dynindx != -1) |
3948 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3949 | edir->elf.dynstr_index); | |
411e1bfb AM |
3950 | edir->elf.dynindx = eind->elf.dynindx; |
3951 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3952 | eind->elf.dynindx = -1; | |
3953 | eind->elf.dynstr_index = 0; | |
3954 | } | |
411e1bfb AM |
3955 | } |
3956 | ||
8387904d AM |
3957 | /* Find the function descriptor hash entry from the given function code |
3958 | hash entry FH. Link the entries via their OH fields. */ | |
3959 | ||
3960 | static struct ppc_link_hash_entry * | |
3961 | get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) | |
3962 | { | |
3963 | struct ppc_link_hash_entry *fdh = fh->oh; | |
3964 | ||
3965 | if (fdh == NULL) | |
3966 | { | |
3967 | const char *fd_name = fh->elf.root.root.string + 1; | |
3968 | ||
3969 | fdh = (struct ppc_link_hash_entry *) | |
3970 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
3971 | if (fdh != NULL) | |
3972 | { | |
3973 | fdh->is_func_descriptor = 1; | |
3974 | fdh->oh = fh; | |
3975 | fh->is_func = 1; | |
3976 | fh->oh = fdh; | |
3977 | } | |
3978 | } | |
3979 | ||
3980 | return fdh; | |
3981 | } | |
3982 | ||
bb700d78 AM |
3983 | /* Make a fake function descriptor sym for the code sym FH. */ |
3984 | ||
3985 | static struct ppc_link_hash_entry * | |
3986 | make_fdh (struct bfd_link_info *info, | |
908b32fc | 3987 | struct ppc_link_hash_entry *fh) |
bb700d78 AM |
3988 | { |
3989 | bfd *abfd; | |
3990 | asymbol *newsym; | |
3991 | struct bfd_link_hash_entry *bh; | |
3992 | struct ppc_link_hash_entry *fdh; | |
3993 | ||
3994 | abfd = fh->elf.root.u.undef.abfd; | |
3995 | newsym = bfd_make_empty_symbol (abfd); | |
3996 | newsym->name = fh->elf.root.root.string + 1; | |
3997 | newsym->section = bfd_und_section_ptr; | |
3998 | newsym->value = 0; | |
908b32fc | 3999 | newsym->flags = BSF_WEAK; |
bb700d78 AM |
4000 | |
4001 | bh = NULL; | |
4002 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
4003 | newsym->flags, newsym->section, | |
4004 | newsym->value, NULL, FALSE, FALSE, | |
4005 | &bh)) | |
4006 | return NULL; | |
4007 | ||
4008 | fdh = (struct ppc_link_hash_entry *) bh; | |
4009 | fdh->elf.non_elf = 0; | |
908b32fc AM |
4010 | fdh->fake = 1; |
4011 | fdh->is_func_descriptor = 1; | |
4012 | fdh->oh = fh; | |
4013 | fh->is_func = 1; | |
4014 | fh->oh = fdh; | |
bb700d78 AM |
4015 | return fdh; |
4016 | } | |
4017 | ||
8387904d AM |
4018 | /* Hacks to support old ABI code. |
4019 | When making function calls, old ABI code references function entry | |
4020 | points (dot symbols), while new ABI code references the function | |
4021 | descriptor symbol. We need to make any combination of reference and | |
4022 | definition work together, without breaking archive linking. | |
4023 | ||
4024 | For a defined function "foo" and an undefined call to "bar": | |
4025 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
4026 | "bar" too). | |
4027 | A new object defines "foo" and references "bar". | |
4028 | ||
4029 | A new object thus has no problem with its undefined symbols being | |
4030 | satisfied by definitions in an old object. On the other hand, the | |
4031 | old object won't have ".bar" satisfied by a new object. */ | |
4032 | ||
4033 | /* Fix function descriptor symbols defined in .opd sections to be | |
4034 | function type. */ | |
555cd476 AM |
4035 | |
4036 | static bfd_boolean | |
433817dd | 4037 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
555cd476 AM |
4038 | struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4039 | Elf_Internal_Sym *isym, | |
433817dd | 4040 | const char **name, |
555cd476 AM |
4041 | flagword *flags ATTRIBUTE_UNUSED, |
4042 | asection **sec, | |
4043 | bfd_vma *value ATTRIBUTE_UNUSED) | |
4044 | { | |
8843416a AM |
4045 | if (*sec != NULL |
4046 | && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0) | |
555cd476 | 4047 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); |
433817dd AM |
4048 | |
4049 | if ((*name)[0] == '.' | |
4050 | && ELF_ST_BIND (isym->st_info) == STB_GLOBAL | |
4051 | && ELF_ST_TYPE (isym->st_info) < STT_SECTION | |
4052 | && is_ppc64_elf_target (ibfd->xvec)) | |
4053 | ppc64_elf_tdata (ibfd)->u.has_dotsym = 1; | |
4054 | ||
555cd476 AM |
4055 | return TRUE; |
4056 | } | |
4057 | ||
8387904d | 4058 | /* This function makes an old ABI object reference to ".bar" cause the |
908b32fc AM |
4059 | inclusion of a new ABI object archive that defines "bar". |
4060 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
4061 | table that might be satisfied by the archive symbols. */ | |
8387904d AM |
4062 | |
4063 | static struct elf_link_hash_entry * | |
4064 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
4065 | struct bfd_link_info *info, | |
4066 | const char *name) | |
4067 | { | |
4068 | struct elf_link_hash_entry *h; | |
4069 | char *dot_name; | |
4070 | size_t len; | |
4071 | ||
4072 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
908b32fc AM |
4073 | if (h != NULL |
4074 | /* Don't return this sym if it is a fake function descriptor | |
4075 | created by add_symbol_adjust. */ | |
4076 | && !(h->root.type == bfd_link_hash_undefweak | |
4077 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
8387904d AM |
4078 | return h; |
4079 | ||
4080 | if (name[0] == '.') | |
4081 | return h; | |
4082 | ||
4083 | len = strlen (name); | |
4084 | dot_name = bfd_alloc (abfd, len + 2); | |
4085 | if (dot_name == NULL) | |
4086 | return (struct elf_link_hash_entry *) 0 - 1; | |
4087 | dot_name[0] = '.'; | |
4088 | memcpy (dot_name + 1, name, len + 1); | |
4089 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
4090 | bfd_release (abfd, dot_name); | |
4091 | return h; | |
4092 | } | |
4093 | ||
4094 | /* This function satisfies all old ABI object references to ".bar" if a | |
99877b66 AM |
4095 | new ABI object defines "bar". Well, at least, undefined dot symbols |
4096 | are made weak. This stops later archive searches from including an | |
4097 | object if we already have a function descriptor definition. It also | |
35b0ce59 AM |
4098 | prevents the linker complaining about undefined symbols. |
4099 | We also check and correct mismatched symbol visibility here. The | |
4100 | most restrictive visibility of the function descriptor and the | |
4101 | function entry symbol is used. */ | |
8387904d | 4102 | |
bb700d78 AM |
4103 | struct add_symbol_adjust_data |
4104 | { | |
4105 | struct bfd_link_info *info; | |
4106 | bfd_boolean ok; | |
4107 | }; | |
4108 | ||
8387904d AM |
4109 | static bfd_boolean |
4110 | add_symbol_adjust (struct elf_link_hash_entry *h, void *inf) | |
4111 | { | |
bb700d78 | 4112 | struct add_symbol_adjust_data *data; |
8387904d | 4113 | struct ppc_link_hash_table *htab; |
99877b66 | 4114 | struct ppc_link_hash_entry *eh; |
8387904d AM |
4115 | struct ppc_link_hash_entry *fdh; |
4116 | ||
4117 | if (h->root.type == bfd_link_hash_indirect) | |
4118 | return TRUE; | |
4119 | ||
4120 | if (h->root.type == bfd_link_hash_warning) | |
4121 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4122 | ||
35b0ce59 | 4123 | if (h->root.root.string[0] != '.') |
8387904d AM |
4124 | return TRUE; |
4125 | ||
bb700d78 AM |
4126 | data = inf; |
4127 | htab = ppc_hash_table (data->info); | |
99877b66 AM |
4128 | eh = (struct ppc_link_hash_entry *) h; |
4129 | fdh = get_fdh (eh, htab); | |
bb700d78 | 4130 | if (fdh == NULL |
c4f68ce3 | 4131 | && !data->info->relocatable |
bb700d78 AM |
4132 | && (eh->elf.root.type == bfd_link_hash_undefined |
4133 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
4134 | && eh->elf.ref_regular) | |
4135 | { | |
4136 | /* Make an undefweak function descriptor sym, which is enough to | |
4137 | pull in an --as-needed shared lib, but won't cause link | |
4138 | errors. Archives are handled elsewhere. */ | |
908b32fc | 4139 | fdh = make_fdh (data->info, eh); |
bb700d78 AM |
4140 | if (fdh == NULL) |
4141 | data->ok = FALSE; | |
4142 | else | |
4143 | fdh->elf.ref_regular = 1; | |
4144 | } | |
e87d886e | 4145 | else if (fdh != NULL) |
8387904d | 4146 | { |
35b0ce59 AM |
4147 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
4148 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
4149 | if (entry_vis < descr_vis) | |
4150 | fdh->elf.other += entry_vis - descr_vis; | |
4151 | else if (entry_vis > descr_vis) | |
4152 | eh->elf.other += descr_vis - entry_vis; | |
4153 | ||
e87d886e AM |
4154 | if ((fdh->elf.root.type == bfd_link_hash_defined |
4155 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
4156 | && eh->elf.root.type == bfd_link_hash_undefined) | |
35b0ce59 AM |
4157 | { |
4158 | eh->elf.root.type = bfd_link_hash_undefweak; | |
4159 | eh->was_undefined = 1; | |
4160 | htab->twiddled_syms = 1; | |
4161 | } | |
8387904d | 4162 | } |
99877b66 | 4163 | |
8387904d AM |
4164 | return TRUE; |
4165 | } | |
4166 | ||
4167 | static bfd_boolean | |
433817dd | 4168 | ppc64_elf_check_directives (bfd *abfd, struct bfd_link_info *info) |
8387904d | 4169 | { |
99877b66 | 4170 | struct ppc_link_hash_table *htab; |
bb700d78 | 4171 | struct add_symbol_adjust_data data; |
99877b66 | 4172 | |
433817dd AM |
4173 | if (!is_ppc64_elf_target (abfd->xvec)) |
4174 | return TRUE; | |
4175 | ||
4176 | if (!ppc64_elf_tdata (abfd)->u.has_dotsym) | |
4177 | return TRUE; | |
4178 | ppc64_elf_tdata (abfd)->u.deleted_section = NULL; | |
4179 | ||
99877b66 | 4180 | htab = ppc_hash_table (info); |
ee75fd95 | 4181 | if (!is_ppc64_elf_target (htab->elf.root.creator)) |
35b0ce59 AM |
4182 | return TRUE; |
4183 | ||
bb700d78 AM |
4184 | data.info = info; |
4185 | data.ok = TRUE; | |
4186 | elf_link_hash_traverse (&htab->elf, add_symbol_adjust, &data); | |
99877b66 AM |
4187 | |
4188 | /* We need to fix the undefs list for any syms we have twiddled to | |
4189 | undef_weak. */ | |
4190 | if (htab->twiddled_syms) | |
4191 | { | |
77cfaee6 | 4192 | bfd_link_repair_undef_list (&htab->elf.root); |
99877b66 AM |
4193 | htab->twiddled_syms = 0; |
4194 | } | |
bb700d78 | 4195 | return data.ok; |
8387904d AM |
4196 | } |
4197 | ||
411e1bfb | 4198 | static bfd_boolean |
4ce794b7 AM |
4199 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
4200 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
411e1bfb AM |
4201 | { |
4202 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 4203 | char *local_got_tls_masks; |
411e1bfb AM |
4204 | |
4205 | if (local_got_ents == NULL) | |
4206 | { | |
4207 | bfd_size_type size = symtab_hdr->sh_info; | |
4208 | ||
e7b938ca | 4209 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
4ce794b7 | 4210 | local_got_ents = bfd_zalloc (abfd, size); |
411e1bfb AM |
4211 | if (local_got_ents == NULL) |
4212 | return FALSE; | |
4213 | elf_local_got_ents (abfd) = local_got_ents; | |
4214 | } | |
4215 | ||
4216 | if ((tls_type & TLS_EXPLICIT) == 0) | |
4217 | { | |
4218 | struct got_entry *ent; | |
4219 | ||
4220 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
e717da7e AM |
4221 | if (ent->addend == r_addend |
4222 | && ent->owner == abfd | |
4223 | && ent->tls_type == tls_type) | |
411e1bfb AM |
4224 | break; |
4225 | if (ent == NULL) | |
4226 | { | |
4227 | bfd_size_type amt = sizeof (*ent); | |
4ce794b7 | 4228 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
4229 | if (ent == NULL) |
4230 | return FALSE; | |
4231 | ent->next = local_got_ents[r_symndx]; | |
4232 | ent->addend = r_addend; | |
e717da7e | 4233 | ent->owner = abfd; |
411e1bfb AM |
4234 | ent->tls_type = tls_type; |
4235 | ent->got.refcount = 0; | |
4236 | local_got_ents[r_symndx] = ent; | |
4237 | } | |
4238 | ent->got.refcount += 1; | |
4239 | } | |
4240 | ||
e7b938ca AM |
4241 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
4242 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 4243 | return TRUE; |
65f38f15 AM |
4244 | } |
4245 | ||
411e1bfb | 4246 | static bfd_boolean |
4ce794b7 | 4247 | update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend) |
1e2f5b6e | 4248 | { |
411e1bfb | 4249 | struct plt_entry *ent; |
1e2f5b6e | 4250 | |
411e1bfb AM |
4251 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
4252 | if (ent->addend == addend) | |
4253 | break; | |
4254 | if (ent == NULL) | |
1e2f5b6e | 4255 | { |
411e1bfb | 4256 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 4257 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
4258 | if (ent == NULL) |
4259 | return FALSE; | |
4260 | ent->next = eh->elf.plt.plist; | |
4261 | ent->addend = addend; | |
4262 | ent->plt.refcount = 0; | |
4263 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 4264 | } |
411e1bfb | 4265 | ent->plt.refcount += 1; |
f5385ebf | 4266 | eh->elf.needs_plt = 1; |
93f3fa99 AM |
4267 | if (eh->elf.root.root.string[0] == '.' |
4268 | && eh->elf.root.root.string[1] != '\0') | |
4269 | eh->is_func = 1; | |
b34976b6 | 4270 | return TRUE; |
1e2f5b6e AM |
4271 | } |
4272 | ||
5bd4f169 | 4273 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 4274 | calculate needed space in the global offset table, procedure |
5d1634d7 | 4275 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 4276 | |
b34976b6 | 4277 | static bfd_boolean |
4ce794b7 AM |
4278 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
4279 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4280 | { |
65f38f15 | 4281 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4282 | Elf_Internal_Shdr *symtab_hdr; |
4283 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
4284 | const Elf_Internal_Rela *rel; | |
4285 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 4286 | asection *sreloc; |
1e2f5b6e | 4287 | asection **opd_sym_map; |
5bd4f169 | 4288 | |
1049f94e | 4289 | if (info->relocatable) |
b34976b6 | 4290 | return TRUE; |
5bd4f169 | 4291 | |
680a3378 AM |
4292 | /* Don't do anything special with non-loaded, non-alloced sections. |
4293 | In particular, any relocs in such sections should not affect GOT | |
4294 | and PLT reference counting (ie. we don't allow them to create GOT | |
4295 | or PLT entries), there's no possibility or desire to optimize TLS | |
4296 | relocs, and there's not much point in propagating relocs to shared | |
4297 | libs that the dynamic linker won't relocate. */ | |
4298 | if ((sec->flags & SEC_ALLOC) == 0) | |
4299 | return TRUE; | |
4300 | ||
65f38f15 | 4301 | htab = ppc_hash_table (info); |
5bd4f169 | 4302 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
4303 | |
4304 | sym_hashes = elf_sym_hashes (abfd); | |
4305 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
4306 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
4307 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
4308 | |
4309 | sreloc = NULL; | |
1e2f5b6e AM |
4310 | opd_sym_map = NULL; |
4311 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
4312 | { | |
4313 | /* Garbage collection needs some extra help with .opd sections. | |
4314 | We don't want to necessarily keep everything referenced by | |
4315 | relocs in .opd, as that would keep all functions. Instead, | |
4316 | if we reference an .opd symbol (a function descriptor), we | |
4317 | want to keep the function code symbol's section. This is | |
4318 | easy for global symbols, but for local syms we need to keep | |
4319 | information about the associated function section. Later, if | |
4320 | edit_opd deletes entries, we'll use this array to adjust | |
4321 | local syms in .opd. */ | |
4322 | union opd_info { | |
4323 | asection *func_section; | |
4324 | long entry_adjust; | |
4325 | }; | |
4326 | bfd_size_type amt; | |
4327 | ||
3f764659 | 4328 | amt = sec->size * sizeof (union opd_info) / 8; |
4ce794b7 | 4329 | opd_sym_map = bfd_zalloc (abfd, amt); |
1e2f5b6e | 4330 | if (opd_sym_map == NULL) |
b34976b6 | 4331 | return FALSE; |
f0abc2a1 | 4332 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 4333 | } |
5bd4f169 | 4334 | |
82bd7b59 AM |
4335 | if (htab->sfpr == NULL |
4336 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 4337 | return FALSE; |
82bd7b59 | 4338 | |
5bd4f169 AM |
4339 | rel_end = relocs + sec->reloc_count; |
4340 | for (rel = relocs; rel < rel_end; rel++) | |
4341 | { | |
4342 | unsigned long r_symndx; | |
4343 | struct elf_link_hash_entry *h; | |
04c9666a | 4344 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 4345 | int tls_type = 0; |
5bd4f169 AM |
4346 | |
4347 | r_symndx = ELF64_R_SYM (rel->r_info); | |
4348 | if (r_symndx < symtab_hdr->sh_info) | |
4349 | h = NULL; | |
4350 | else | |
973a3492 L |
4351 | { |
4352 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4353 | while (h->root.type == bfd_link_hash_indirect | |
4354 | || h->root.type == bfd_link_hash_warning) | |
4355 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4356 | } | |
5bd4f169 | 4357 | |
4ce794b7 | 4358 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4359 | switch (r_type) |
5bd4f169 | 4360 | { |
411e1bfb AM |
4361 | case R_PPC64_GOT_TLSLD16: |
4362 | case R_PPC64_GOT_TLSLD16_LO: | |
4363 | case R_PPC64_GOT_TLSLD16_HI: | |
4364 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 4365 | ppc64_tlsld_got (abfd)->refcount += 1; |
951fd09b | 4366 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4367 | goto dogottls; |
4368 | ||
4369 | case R_PPC64_GOT_TLSGD16: | |
4370 | case R_PPC64_GOT_TLSGD16_LO: | |
4371 | case R_PPC64_GOT_TLSGD16_HI: | |
4372 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4373 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4374 | goto dogottls; |
4375 | ||
4376 | case R_PPC64_GOT_TPREL16_DS: | |
4377 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4378 | case R_PPC64_GOT_TPREL16_HI: | |
4379 | case R_PPC64_GOT_TPREL16_HA: | |
4380 | if (info->shared) | |
4381 | info->flags |= DF_STATIC_TLS; | |
4382 | tls_type = TLS_TLS | TLS_TPREL; | |
4383 | goto dogottls; | |
4384 | ||
4385 | case R_PPC64_GOT_DTPREL16_DS: | |
4386 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4387 | case R_PPC64_GOT_DTPREL16_HI: | |
4388 | case R_PPC64_GOT_DTPREL16_HA: | |
4389 | tls_type = TLS_TLS | TLS_DTPREL; | |
4390 | dogottls: | |
4391 | sec->has_tls_reloc = 1; | |
4392 | /* Fall thru */ | |
4393 | ||
5bd4f169 | 4394 | case R_PPC64_GOT16: |
5bd4f169 | 4395 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
4396 | case R_PPC64_GOT16_HA: |
4397 | case R_PPC64_GOT16_HI: | |
4398 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 4399 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 4400 | /* This symbol requires a global offset table entry. */ |
4c52953f | 4401 | sec->has_toc_reloc = 1; |
e717da7e AM |
4402 | if (ppc64_elf_tdata (abfd)->got == NULL |
4403 | && !create_got_section (abfd, info)) | |
b34976b6 | 4404 | return FALSE; |
5bd4f169 AM |
4405 | |
4406 | if (h != NULL) | |
4407 | { | |
411e1bfb AM |
4408 | struct ppc_link_hash_entry *eh; |
4409 | struct got_entry *ent; | |
65f38f15 | 4410 | |
411e1bfb AM |
4411 | eh = (struct ppc_link_hash_entry *) h; |
4412 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
4413 | if (ent->addend == rel->r_addend | |
e717da7e | 4414 | && ent->owner == abfd |
411e1bfb AM |
4415 | && ent->tls_type == tls_type) |
4416 | break; | |
4417 | if (ent == NULL) | |
5bd4f169 | 4418 | { |
411e1bfb | 4419 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 4420 | ent = bfd_alloc (abfd, amt); |
411e1bfb | 4421 | if (ent == NULL) |
b34976b6 | 4422 | return FALSE; |
411e1bfb AM |
4423 | ent->next = eh->elf.got.glist; |
4424 | ent->addend = rel->r_addend; | |
e717da7e | 4425 | ent->owner = abfd; |
411e1bfb AM |
4426 | ent->tls_type = tls_type; |
4427 | ent->got.refcount = 0; | |
4428 | eh->elf.got.glist = ent; | |
5bd4f169 | 4429 | } |
411e1bfb | 4430 | ent->got.refcount += 1; |
e7b938ca | 4431 | eh->tls_mask |= tls_type; |
5bd4f169 | 4432 | } |
411e1bfb AM |
4433 | else |
4434 | /* This is a global offset table entry for a local symbol. */ | |
4435 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
4436 | rel->r_addend, tls_type)) | |
4437 | return FALSE; | |
5bd4f169 AM |
4438 | break; |
4439 | ||
5bd4f169 | 4440 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
4441 | case R_PPC64_PLT16_HI: |
4442 | case R_PPC64_PLT16_LO: | |
4443 | case R_PPC64_PLT32: | |
4444 | case R_PPC64_PLT64: | |
5bd4f169 | 4445 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
4446 | actually build the entry in adjust_dynamic_symbol, |
4447 | because this might be a case of linking PIC code without | |
4448 | linking in any dynamic objects, in which case we don't | |
4449 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
4450 | if (h == NULL) |
4451 | { | |
4452 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 4453 | table entry for a local symbol. */ |
5bd4f169 | 4454 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4455 | return FALSE; |
5bd4f169 | 4456 | } |
411e1bfb AM |
4457 | else |
4458 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
4459 | rel->r_addend)) | |
4460 | return FALSE; | |
5bd4f169 AM |
4461 | break; |
4462 | ||
4463 | /* The following relocations don't need to propagate the | |
4464 | relocation if linking a shared object since they are | |
4465 | section relative. */ | |
4466 | case R_PPC64_SECTOFF: | |
4467 | case R_PPC64_SECTOFF_LO: | |
4468 | case R_PPC64_SECTOFF_HI: | |
4469 | case R_PPC64_SECTOFF_HA: | |
4470 | case R_PPC64_SECTOFF_DS: | |
4471 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
4472 | case R_PPC64_DTPREL16: |
4473 | case R_PPC64_DTPREL16_LO: | |
4474 | case R_PPC64_DTPREL16_HI: | |
4475 | case R_PPC64_DTPREL16_HA: | |
4476 | case R_PPC64_DTPREL16_DS: | |
4477 | case R_PPC64_DTPREL16_LO_DS: | |
4478 | case R_PPC64_DTPREL16_HIGHER: | |
4479 | case R_PPC64_DTPREL16_HIGHERA: | |
4480 | case R_PPC64_DTPREL16_HIGHEST: | |
4481 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
4482 | break; |
4483 | ||
ad8e1ba5 AM |
4484 | /* Nor do these. */ |
4485 | case R_PPC64_TOC16: | |
4486 | case R_PPC64_TOC16_LO: | |
4487 | case R_PPC64_TOC16_HI: | |
4488 | case R_PPC64_TOC16_HA: | |
4489 | case R_PPC64_TOC16_DS: | |
4490 | case R_PPC64_TOC16_LO_DS: | |
4c52953f | 4491 | sec->has_toc_reloc = 1; |
ad8e1ba5 AM |
4492 | break; |
4493 | ||
5bd4f169 AM |
4494 | /* This relocation describes the C++ object vtable hierarchy. |
4495 | Reconstruct it for later use during GC. */ | |
4496 | case R_PPC64_GNU_VTINHERIT: | |
c152c796 | 4497 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 4498 | return FALSE; |
5bd4f169 AM |
4499 | break; |
4500 | ||
4501 | /* This relocation describes which C++ vtable entries are actually | |
4502 | used. Record for later use during GC. */ | |
4503 | case R_PPC64_GNU_VTENTRY: | |
c152c796 | 4504 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 4505 | return FALSE; |
5bd4f169 AM |
4506 | break; |
4507 | ||
721956f4 AM |
4508 | case R_PPC64_REL14: |
4509 | case R_PPC64_REL14_BRTAKEN: | |
4510 | case R_PPC64_REL14_BRNTAKEN: | |
220c76dd AM |
4511 | { |
4512 | asection *dest = NULL; | |
4513 | ||
4514 | /* Heuristic: If jumping outside our section, chances are | |
4515 | we are going to need a stub. */ | |
4516 | if (h != NULL) | |
4517 | { | |
4518 | /* If the sym is weak it may be overridden later, so | |
4519 | don't assume we know where a weak sym lives. */ | |
4520 | if (h->root.type == bfd_link_hash_defined) | |
4521 | dest = h->root.u.def.section; | |
4522 | } | |
4523 | else | |
4524 | dest = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4525 | sec, r_symndx); | |
4526 | if (dest != sec) | |
4527 | htab->has_14bit_branch = 1; | |
4528 | } | |
721956f4 AM |
4529 | /* Fall through. */ |
4530 | ||
5d1634d7 | 4531 | case R_PPC64_REL24: |
8387904d | 4532 | if (h != NULL) |
5d1634d7 AM |
4533 | { |
4534 | /* We may need a .plt entry if the function this reloc | |
4535 | refers to is in a shared lib. */ | |
411e1bfb AM |
4536 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
4537 | rel->r_addend)) | |
4538 | return FALSE; | |
8387904d AM |
4539 | if (h == &htab->tls_get_addr->elf |
4540 | || h == &htab->tls_get_addr_fd->elf) | |
411e1bfb | 4541 | sec->has_tls_reloc = 1; |
8387904d AM |
4542 | else if (htab->tls_get_addr == NULL |
4543 | && !strncmp (h->root.root.string, ".__tls_get_addr", 15) | |
a48ebf4d AM |
4544 | && (h->root.root.string[15] == 0 |
4545 | || h->root.root.string[15] == '@')) | |
411e1bfb | 4546 | { |
8387904d AM |
4547 | htab->tls_get_addr = (struct ppc_link_hash_entry *) h; |
4548 | sec->has_tls_reloc = 1; | |
4549 | } | |
4550 | else if (htab->tls_get_addr_fd == NULL | |
4551 | && !strncmp (h->root.root.string, "__tls_get_addr", 14) | |
4552 | && (h->root.root.string[14] == 0 | |
4553 | || h->root.root.string[14] == '@')) | |
4554 | { | |
4555 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h; | |
411e1bfb AM |
4556 | sec->has_tls_reloc = 1; |
4557 | } | |
4558 | } | |
4559 | break; | |
4560 | ||
4561 | case R_PPC64_TPREL64: | |
4562 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
4563 | if (info->shared) | |
4564 | info->flags |= DF_STATIC_TLS; | |
4565 | goto dotlstoc; | |
4566 | ||
4567 | case R_PPC64_DTPMOD64: | |
4568 | if (rel + 1 < rel_end | |
4569 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
4570 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 4571 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 4572 | else |
951fd09b | 4573 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
4574 | goto dotlstoc; |
4575 | ||
4576 | case R_PPC64_DTPREL64: | |
4577 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
4578 | if (rel != relocs | |
4579 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
4580 | && rel[-1].r_offset == rel->r_offset - 8) | |
4581 | /* This is the second reloc of a dtpmod, dtprel pair. | |
4582 | Don't mark with TLS_DTPREL. */ | |
4583 | goto dodyn; | |
4584 | ||
4585 | dotlstoc: | |
4586 | sec->has_tls_reloc = 1; | |
4587 | if (h != NULL) | |
4588 | { | |
4589 | struct ppc_link_hash_entry *eh; | |
4590 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4591 | eh->tls_mask |= tls_type; |
411e1bfb AM |
4592 | } |
4593 | else | |
4594 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
4595 | rel->r_addend, tls_type)) | |
4596 | return FALSE; | |
4597 | ||
4598 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
4599 | { | |
e7b938ca | 4600 | /* One extra to simplify get_tls_mask. */ |
eea6121a | 4601 | bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1; |
4ce794b7 | 4602 | ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt); |
411e1bfb AM |
4603 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) |
4604 | return FALSE; | |
4605 | } | |
4606 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
4607 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
4608 | |
4609 | /* Mark the second slot of a GD or LD entry. | |
4610 | -1 to indicate GD and -2 to indicate LD. */ | |
4611 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
4612 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
4613 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
4614 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
4615 | goto dodyn; |
4616 | ||
4617 | case R_PPC64_TPREL16: | |
4618 | case R_PPC64_TPREL16_LO: | |
4619 | case R_PPC64_TPREL16_HI: | |
4620 | case R_PPC64_TPREL16_HA: | |
4621 | case R_PPC64_TPREL16_DS: | |
4622 | case R_PPC64_TPREL16_LO_DS: | |
4623 | case R_PPC64_TPREL16_HIGHER: | |
4624 | case R_PPC64_TPREL16_HIGHERA: | |
4625 | case R_PPC64_TPREL16_HIGHEST: | |
4626 | case R_PPC64_TPREL16_HIGHESTA: | |
4627 | if (info->shared) | |
4628 | { | |
4629 | info->flags |= DF_STATIC_TLS; | |
4630 | goto dodyn; | |
5d1634d7 AM |
4631 | } |
4632 | break; | |
4633 | ||
e86ce104 | 4634 | case R_PPC64_ADDR64: |
1e2f5b6e | 4635 | if (opd_sym_map != NULL |
1e2f5b6e | 4636 | && rel + 1 < rel_end |
4ce794b7 | 4637 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
1e2f5b6e | 4638 | { |
8387904d AM |
4639 | if (h != NULL) |
4640 | { | |
4641 | if (h->root.root.string[0] == '.' | |
4642 | && h->root.root.string[1] != 0 | |
4643 | && get_fdh ((struct ppc_link_hash_entry *) h, htab)) | |
4644 | ; | |
4645 | else | |
4646 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
4647 | } | |
4648 | else | |
4649 | { | |
4650 | asection *s; | |
1e2f5b6e | 4651 | |
8387904d AM |
4652 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, |
4653 | r_symndx); | |
4654 | if (s == NULL) | |
4655 | return FALSE; | |
4656 | else if (s != sec) | |
3f764659 | 4657 | opd_sym_map[rel->r_offset / 8] = s; |
8387904d | 4658 | } |
1e2f5b6e | 4659 | } |
e86ce104 AM |
4660 | /* Fall through. */ |
4661 | ||
04c9666a | 4662 | case R_PPC64_REL30: |
5bd4f169 | 4663 | case R_PPC64_REL32: |
04c9666a | 4664 | case R_PPC64_REL64: |
65f38f15 AM |
4665 | case R_PPC64_ADDR14: |
4666 | case R_PPC64_ADDR14_BRNTAKEN: | |
4667 | case R_PPC64_ADDR14_BRTAKEN: | |
4668 | case R_PPC64_ADDR16: | |
4669 | case R_PPC64_ADDR16_DS: | |
4670 | case R_PPC64_ADDR16_HA: | |
4671 | case R_PPC64_ADDR16_HI: | |
4672 | case R_PPC64_ADDR16_HIGHER: | |
4673 | case R_PPC64_ADDR16_HIGHERA: | |
4674 | case R_PPC64_ADDR16_HIGHEST: | |
4675 | case R_PPC64_ADDR16_HIGHESTA: | |
4676 | case R_PPC64_ADDR16_LO: | |
4677 | case R_PPC64_ADDR16_LO_DS: | |
4678 | case R_PPC64_ADDR24: | |
65f38f15 | 4679 | case R_PPC64_ADDR32: |
65f38f15 AM |
4680 | case R_PPC64_UADDR16: |
4681 | case R_PPC64_UADDR32: | |
4682 | case R_PPC64_UADDR64: | |
5bd4f169 | 4683 | case R_PPC64_TOC: |
81848ca0 AM |
4684 | if (h != NULL && !info->shared) |
4685 | /* We may need a copy reloc. */ | |
f5385ebf | 4686 | h->non_got_ref = 1; |
81848ca0 | 4687 | |
41bd81ab | 4688 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 4689 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 4690 | break; |
e86ce104 | 4691 | |
65f38f15 AM |
4692 | /* If we are creating a shared library, and this is a reloc |
4693 | against a global symbol, or a non PC relative reloc | |
4694 | against a local symbol, then we need to copy the reloc | |
4695 | into the shared library. However, if we are linking with | |
4696 | -Bsymbolic, we do not need to copy a reloc against a | |
4697 | global symbol which is defined in an object we are | |
4698 | including in the link (i.e., DEF_REGULAR is set). At | |
4699 | this point we have not seen all the input files, so it is | |
4700 | possible that DEF_REGULAR is not set now but will be set | |
4701 | later (it is never cleared). In case of a weak definition, | |
4702 | DEF_REGULAR may be cleared later by a strong definition in | |
4703 | a shared library. We account for that possibility below by | |
f4656909 | 4704 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
4705 | table entry. A similar situation occurs when creating |
4706 | shared libraries and symbol visibility changes render the | |
4707 | symbol local. | |
4708 | ||
4709 | If on the other hand, we are creating an executable, we | |
4710 | may need to keep relocations for symbols satisfied by a | |
4711 | dynamic library if we manage to avoid copy relocs for the | |
4712 | symbol. */ | |
411e1bfb | 4713 | dodyn: |
65f38f15 | 4714 | if ((info->shared |
411e1bfb | 4715 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
4716 | || (h != NULL |
4717 | && (! info->symbolic | |
4718 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 4719 | || !h->def_regular)))) |
f4656909 AM |
4720 | || (ELIMINATE_COPY_RELOCS |
4721 | && !info->shared | |
65f38f15 AM |
4722 | && h != NULL |
4723 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 4724 | || !h->def_regular))) |
5bd4f169 | 4725 | { |
ec338859 AM |
4726 | struct ppc_dyn_relocs *p; |
4727 | struct ppc_dyn_relocs **head; | |
4728 | ||
65f38f15 AM |
4729 | /* We must copy these reloc types into the output file. |
4730 | Create a reloc section in dynobj and make room for | |
4731 | this reloc. */ | |
5bd4f169 AM |
4732 | if (sreloc == NULL) |
4733 | { | |
4734 | const char *name; | |
65f38f15 | 4735 | bfd *dynobj; |
5bd4f169 AM |
4736 | |
4737 | name = (bfd_elf_string_from_elf_section | |
4738 | (abfd, | |
4739 | elf_elfheader (abfd)->e_shstrndx, | |
4740 | elf_section_data (sec)->rel_hdr.sh_name)); | |
4741 | if (name == NULL) | |
b34976b6 | 4742 | return FALSE; |
5bd4f169 | 4743 | |
65f38f15 AM |
4744 | if (strncmp (name, ".rela", 5) != 0 |
4745 | || strcmp (bfd_get_section_name (abfd, sec), | |
4746 | name + 5) != 0) | |
4747 | { | |
4748 | (*_bfd_error_handler) | |
d003868e AM |
4749 | (_("%B: bad relocation section name `%s\'"), |
4750 | abfd, name); | |
5d1634d7 | 4751 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
4752 | } |
4753 | ||
65f38f15 | 4754 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
4755 | sreloc = bfd_get_section_by_name (dynobj, name); |
4756 | if (sreloc == NULL) | |
4757 | { | |
4758 | flagword flags; | |
4759 | ||
5bd4f169 | 4760 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
77623a34 AM |
4761 | | SEC_IN_MEMORY | SEC_LINKER_CREATED |
4762 | | SEC_ALLOC | SEC_LOAD); | |
3496cb2a L |
4763 | sreloc = bfd_make_section_with_flags (dynobj, |
4764 | name, | |
4765 | flags); | |
5bd4f169 | 4766 | if (sreloc == NULL |
65f38f15 | 4767 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 4768 | return FALSE; |
5bd4f169 | 4769 | } |
65f38f15 | 4770 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
4771 | } |
4772 | ||
65f38f15 AM |
4773 | /* If this is a global symbol, we count the number of |
4774 | relocations we need for this symbol. */ | |
4775 | if (h != NULL) | |
4776 | { | |
ec338859 | 4777 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
4778 | } |
4779 | else | |
4780 | { | |
ec338859 AM |
4781 | /* Track dynamic relocs needed for local syms too. |
4782 | We really need local syms available to do this | |
4783 | easily. Oh well. */ | |
4784 | ||
4785 | asection *s; | |
6edfbbad DJ |
4786 | void *vpp; |
4787 | ||
ec338859 AM |
4788 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
4789 | sec, r_symndx); | |
4790 | if (s == NULL) | |
b34976b6 | 4791 | return FALSE; |
ec338859 | 4792 | |
6edfbbad DJ |
4793 | vpp = &elf_section_data (s)->local_dynrel; |
4794 | head = (struct ppc_dyn_relocs **) vpp; | |
65f38f15 | 4795 | } |
ec338859 AM |
4796 | |
4797 | p = *head; | |
4798 | if (p == NULL || p->sec != sec) | |
4799 | { | |
4ce794b7 | 4800 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 4801 | if (p == NULL) |
b34976b6 | 4802 | return FALSE; |
ec338859 AM |
4803 | p->next = *head; |
4804 | *head = p; | |
4805 | p->sec = sec; | |
4806 | p->count = 0; | |
4807 | p->pc_count = 0; | |
4808 | } | |
4809 | ||
4810 | p->count += 1; | |
411e1bfb | 4811 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4812 | p->pc_count += 1; |
65f38f15 | 4813 | } |
5bd4f169 | 4814 | break; |
65f38f15 AM |
4815 | |
4816 | default: | |
96e0dda4 | 4817 | break; |
5bd4f169 AM |
4818 | } |
4819 | } | |
4820 | ||
b34976b6 | 4821 | return TRUE; |
5bd4f169 AM |
4822 | } |
4823 | ||
8387904d AM |
4824 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
4825 | of the code entry point, and its section. */ | |
4826 | ||
4827 | static bfd_vma | |
4828 | opd_entry_value (asection *opd_sec, | |
4829 | bfd_vma offset, | |
4830 | asection **code_sec, | |
4831 | bfd_vma *code_off) | |
4832 | { | |
4833 | bfd *opd_bfd = opd_sec->owner; | |
8860955f | 4834 | Elf_Internal_Rela *relocs; |
8387904d | 4835 | Elf_Internal_Rela *lo, *hi, *look; |
645ea6a9 | 4836 | bfd_vma val; |
8387904d | 4837 | |
4b85d634 AM |
4838 | /* No relocs implies we are linking a --just-symbols object. */ |
4839 | if (opd_sec->reloc_count == 0) | |
4840 | { | |
4841 | bfd_vma val; | |
4842 | ||
4843 | if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8)) | |
4844 | return (bfd_vma) -1; | |
3b36f7e6 | 4845 | |
4b85d634 AM |
4846 | if (code_sec != NULL) |
4847 | { | |
4848 | asection *sec, *likely = NULL; | |
4849 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
4850 | if (sec->vma <= val | |
4851 | && (sec->flags & SEC_LOAD) != 0 | |
4852 | && (sec->flags & SEC_ALLOC) != 0) | |
4853 | likely = sec; | |
4854 | if (likely != NULL) | |
4855 | { | |
4856 | *code_sec = likely; | |
4857 | if (code_off != NULL) | |
4858 | *code_off = val - likely->vma; | |
4859 | } | |
4860 | } | |
4861 | return val; | |
4862 | } | |
4863 | ||
8860955f AM |
4864 | relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs; |
4865 | if (relocs == NULL) | |
4866 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
645ea6a9 | 4867 | |
8387904d | 4868 | /* Go find the opd reloc at the sym address. */ |
8860955f | 4869 | lo = relocs; |
8387904d AM |
4870 | BFD_ASSERT (lo != NULL); |
4871 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ | |
645ea6a9 | 4872 | val = (bfd_vma) -1; |
8387904d AM |
4873 | while (lo < hi) |
4874 | { | |
4875 | look = lo + (hi - lo) / 2; | |
4876 | if (look->r_offset < offset) | |
4877 | lo = look + 1; | |
4878 | else if (look->r_offset > offset) | |
4879 | hi = look; | |
4880 | else | |
4881 | { | |
4882 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr; | |
4883 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 | |
4884 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
4885 | { | |
4886 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
8387904d AM |
4887 | asection *sec; |
4888 | ||
4889 | if (symndx < symtab_hdr->sh_info) | |
4890 | { | |
4891 | Elf_Internal_Sym *sym; | |
4892 | ||
4893 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4894 | if (sym == NULL) | |
4895 | { | |
4896 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
4897 | symtab_hdr->sh_info, | |
4898 | 0, NULL, NULL, NULL); | |
4899 | if (sym == NULL) | |
645ea6a9 | 4900 | break; |
8387904d AM |
4901 | symtab_hdr->contents = (bfd_byte *) sym; |
4902 | } | |
4903 | ||
4904 | sym += symndx; | |
4905 | val = sym->st_value; | |
4906 | sec = NULL; | |
4907 | if ((sym->st_shndx != SHN_UNDEF | |
4908 | && sym->st_shndx < SHN_LORESERVE) | |
4909 | || sym->st_shndx > SHN_HIRESERVE) | |
4910 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); | |
4911 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
4912 | } | |
4913 | else | |
4914 | { | |
4915 | struct elf_link_hash_entry **sym_hashes; | |
4916 | struct elf_link_hash_entry *rh; | |
4917 | ||
4918 | sym_hashes = elf_sym_hashes (opd_bfd); | |
4919 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
4920 | while (rh->root.type == bfd_link_hash_indirect | |
4921 | || rh->root.type == bfd_link_hash_warning) | |
4922 | rh = ((struct elf_link_hash_entry *) rh->root.u.i.link); | |
4923 | BFD_ASSERT (rh->root.type == bfd_link_hash_defined | |
4924 | || rh->root.type == bfd_link_hash_defweak); | |
4925 | val = rh->root.u.def.value; | |
4926 | sec = rh->root.u.def.section; | |
4927 | } | |
4928 | val += look->r_addend; | |
4929 | if (code_off != NULL) | |
4930 | *code_off = val; | |
4931 | if (code_sec != NULL) | |
4932 | *code_sec = sec; | |
4933 | if (sec != NULL && sec->output_section != NULL) | |
4934 | val += sec->output_section->vma + sec->output_offset; | |
8387904d AM |
4935 | } |
4936 | break; | |
4937 | } | |
4938 | } | |
645ea6a9 | 4939 | |
645ea6a9 | 4940 | return val; |
8387904d AM |
4941 | } |
4942 | ||
64d03ab5 AM |
4943 | /* Mark sections containing dynamically referenced symbols. When |
4944 | building shared libraries, we must assume that any visible symbol is | |
4945 | referenced. */ | |
4946 | ||
4947 | static bfd_boolean | |
4948 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
4949 | { | |
4950 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
4951 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
4952 | ||
4953 | if (eh->elf.root.type == bfd_link_hash_warning) | |
4954 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
4955 | ||
4956 | /* Dynamic linking info is on the func descriptor sym. */ | |
4957 | if (eh->oh != NULL | |
4958 | && eh->oh->is_func_descriptor | |
4959 | && (eh->oh->elf.root.type == bfd_link_hash_defined | |
4960 | || eh->oh->elf.root.type == bfd_link_hash_defweak)) | |
4961 | eh = eh->oh; | |
4962 | ||
4963 | if ((eh->elf.root.type == bfd_link_hash_defined | |
4964 | || eh->elf.root.type == bfd_link_hash_defweak) | |
4965 | && (eh->elf.ref_dynamic | |
4966 | || (!info->executable | |
4967 | && eh->elf.def_regular | |
4968 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL | |
4969 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN))) | |
4970 | { | |
4971 | asection *code_sec; | |
4972 | ||
4973 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
4974 | ||
4975 | /* Function descriptor syms cause the associated | |
4976 | function code sym section to be marked. */ | |
4977 | if (eh->is_func_descriptor | |
4978 | && (eh->oh->elf.root.type == bfd_link_hash_defined | |
4979 | || eh->oh->elf.root.type == bfd_link_hash_defweak)) | |
4980 | eh->oh->elf.root.u.def.section->flags |= SEC_KEEP; | |
4981 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
4982 | && opd_entry_value (eh->elf.root.u.def.section, | |
4983 | eh->elf.root.u.def.value, | |
4984 | &code_sec, NULL) != (bfd_vma) -1) | |
4985 | code_sec->flags |= SEC_KEEP; | |
4986 | } | |
4987 | ||
4988 | return TRUE; | |
4989 | } | |
4990 | ||
5bd4f169 AM |
4991 | /* Return the section that should be marked against GC for a given |
4992 | relocation. */ | |
4993 | ||
4994 | static asection * | |
4ce794b7 | 4995 | ppc64_elf_gc_mark_hook (asection *sec, |
ccfa59ea | 4996 | struct bfd_link_info *info, |
4ce794b7 AM |
4997 | Elf_Internal_Rela *rel, |
4998 | struct elf_link_hash_entry *h, | |
4999 | Elf_Internal_Sym *sym) | |
5bd4f169 | 5000 | { |
ccfa59ea AM |
5001 | asection *rsec; |
5002 | ||
5003 | /* First mark all our entry sym sections. */ | |
5004 | if (info->gc_sym_list != NULL) | |
5005 | { | |
5006 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
5007 | struct bfd_sym_chain *sym = info->gc_sym_list; | |
5008 | ||
5009 | info->gc_sym_list = NULL; | |
b56cbdb9 | 5010 | for (; sym != NULL; sym = sym->next) |
ccfa59ea AM |
5011 | { |
5012 | struct ppc_link_hash_entry *eh; | |
5013 | ||
5014 | eh = (struct ppc_link_hash_entry *) | |
5015 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
5016 | if (eh == NULL) | |
5017 | continue; | |
5018 | if (eh->elf.root.type != bfd_link_hash_defined | |
5019 | && eh->elf.root.type != bfd_link_hash_defweak) | |
5020 | continue; | |
5021 | ||
c4f68ce3 AM |
5022 | if (eh->is_func_descriptor |
5023 | && (eh->oh->elf.root.type == bfd_link_hash_defined | |
5024 | || eh->oh->elf.root.type == bfd_link_hash_defweak)) | |
ccfa59ea | 5025 | rsec = eh->oh->elf.root.u.def.section; |
8387904d AM |
5026 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
5027 | && opd_entry_value (eh->elf.root.u.def.section, | |
5028 | eh->elf.root.u.def.value, | |
5029 | &rsec, NULL) != (bfd_vma) -1) | |
5030 | ; | |
ccfa59ea AM |
5031 | else |
5032 | continue; | |
5033 | ||
5034 | if (!rsec->gc_mark) | |
5035 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
5036 | ||
5037 | rsec = eh->elf.root.u.def.section; | |
5038 | if (!rsec->gc_mark) | |
5039 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
ccfa59ea | 5040 | } |
ccfa59ea AM |
5041 | } |
5042 | ||
5043 | /* Syms return NULL if we're marking .opd, so we avoid marking all | |
5044 | function sections, as all functions are referenced in .opd. */ | |
5045 | rsec = NULL; | |
5046 | if (get_opd_info (sec) != NULL) | |
5047 | return rsec; | |
1e2f5b6e | 5048 | |
5bd4f169 AM |
5049 | if (h != NULL) |
5050 | { | |
04c9666a | 5051 | enum elf_ppc64_reloc_type r_type; |
ccfa59ea | 5052 | struct ppc_link_hash_entry *eh; |
a33d1f77 | 5053 | |
4ce794b7 | 5054 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 5055 | switch (r_type) |
5bd4f169 AM |
5056 | { |
5057 | case R_PPC64_GNU_VTINHERIT: | |
5058 | case R_PPC64_GNU_VTENTRY: | |
5059 | break; | |
5060 | ||
5061 | default: | |
5062 | switch (h->root.type) | |
5063 | { | |
5064 | case bfd_link_hash_defined: | |
5065 | case bfd_link_hash_defweak: | |
ccfa59ea | 5066 | eh = (struct ppc_link_hash_entry *) h; |
c4f68ce3 AM |
5067 | if (eh->oh != NULL |
5068 | && eh->oh->is_func_descriptor | |
5069 | && (eh->oh->elf.root.type == bfd_link_hash_defined | |
5070 | || eh->oh->elf.root.type == bfd_link_hash_defweak)) | |
ccfa59ea | 5071 | eh = eh->oh; |
1e2f5b6e AM |
5072 | |
5073 | /* Function descriptor syms cause the associated | |
5074 | function code sym section to be marked. */ | |
c4f68ce3 AM |
5075 | if (eh->is_func_descriptor |
5076 | && (eh->oh->elf.root.type == bfd_link_hash_defined | |
5077 | || eh->oh->elf.root.type == bfd_link_hash_defweak)) | |
ccfa59ea AM |
5078 | { |
5079 | /* They also mark their opd section. */ | |
5080 | if (!eh->elf.root.u.def.section->gc_mark) | |
5081 | _bfd_elf_gc_mark (info, eh->elf.root.u.def.section, | |
5082 | ppc64_elf_gc_mark_hook); | |
5083 | ||
5084 | rsec = eh->oh->elf.root.u.def.section; | |
5085 | } | |
8387904d AM |
5086 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
5087 | && opd_entry_value (eh->elf.root.u.def.section, | |
5088 | eh->elf.root.u.def.value, | |
5089 | &rsec, NULL) != (bfd_vma) -1) | |
5090 | { | |
5091 | if (!eh->elf.root.u.def.section->gc_mark) | |
5092 | _bfd_elf_gc_mark (info, eh->elf.root.u.def.section, | |
5093 | ppc64_elf_gc_mark_hook); | |
5094 | } | |
ccfa59ea | 5095 | else |
1e2f5b6e AM |
5096 | rsec = h->root.u.def.section; |
5097 | break; | |
5bd4f169 AM |
5098 | |
5099 | case bfd_link_hash_common: | |
1e2f5b6e AM |
5100 | rsec = h->root.u.c.p->section; |
5101 | break; | |
5bd4f169 AM |
5102 | |
5103 | default: | |
5104 | break; | |
5105 | } | |
5106 | } | |
5107 | } | |
5108 | else | |
5109 | { | |
1e2f5b6e AM |
5110 | asection **opd_sym_section; |
5111 | ||
5112 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
ccfa59ea | 5113 | opd_sym_section = get_opd_info (rsec); |
1e2f5b6e | 5114 | if (opd_sym_section != NULL) |
ccfa59ea AM |
5115 | { |
5116 | if (!rsec->gc_mark) | |
5117 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
5118 | ||
b4f4e59f | 5119 | rsec = opd_sym_section[(sym->st_value + rel->r_addend) / 8]; |
ccfa59ea | 5120 | } |
5bd4f169 AM |
5121 | } |
5122 | ||
1e2f5b6e | 5123 | return rsec; |
5bd4f169 AM |
5124 | } |
5125 | ||
65f38f15 AM |
5126 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
5127 | section being removed. */ | |
5bd4f169 | 5128 | |
b34976b6 | 5129 | static bfd_boolean |
4ce794b7 AM |
5130 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
5131 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 5132 | { |
411e1bfb | 5133 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
5134 | Elf_Internal_Shdr *symtab_hdr; |
5135 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 5136 | struct got_entry **local_got_ents; |
5bd4f169 | 5137 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 5138 | |
680a3378 AM |
5139 | if ((sec->flags & SEC_ALLOC) == 0) |
5140 | return TRUE; | |
5141 | ||
ec338859 AM |
5142 | elf_section_data (sec)->local_dynrel = NULL; |
5143 | ||
411e1bfb | 5144 | htab = ppc_hash_table (info); |
5bd4f169 AM |
5145 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5146 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 5147 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
5148 | |
5149 | relend = relocs + sec->reloc_count; | |
5150 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
5151 | { |
5152 | unsigned long r_symndx; | |
04c9666a | 5153 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 5154 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 5155 | char tls_type = 0; |
5bd4f169 | 5156 | |
a33d1f77 | 5157 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 | 5158 | r_type = ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
5159 | if (r_symndx >= symtab_hdr->sh_info) |
5160 | { | |
5161 | struct ppc_link_hash_entry *eh; | |
5162 | struct ppc_dyn_relocs **pp; | |
5163 | struct ppc_dyn_relocs *p; | |
5164 | ||
5165 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3eb128b2 AM |
5166 | while (h->root.type == bfd_link_hash_indirect |
5167 | || h->root.type == bfd_link_hash_warning) | |
5168 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
58ac9f71 AM |
5169 | eh = (struct ppc_link_hash_entry *) h; |
5170 | ||
5171 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
5172 | if (p->sec == sec) | |
5173 | { | |
5174 | /* Everything must go for SEC. */ | |
5175 | *pp = p->next; | |
5176 | break; | |
5177 | } | |
5178 | } | |
5179 | ||
a33d1f77 AM |
5180 | switch (r_type) |
5181 | { | |
411e1bfb AM |
5182 | case R_PPC64_GOT_TLSLD16: |
5183 | case R_PPC64_GOT_TLSLD16_LO: | |
5184 | case R_PPC64_GOT_TLSLD16_HI: | |
5185 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 5186 | ppc64_tlsld_got (abfd)->refcount -= 1; |
951fd09b | 5187 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5188 | goto dogot; |
5189 | ||
5190 | case R_PPC64_GOT_TLSGD16: | |
5191 | case R_PPC64_GOT_TLSGD16_LO: | |
5192 | case R_PPC64_GOT_TLSGD16_HI: | |
5193 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5194 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5195 | goto dogot; |
5196 | ||
5197 | case R_PPC64_GOT_TPREL16_DS: | |
5198 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5199 | case R_PPC64_GOT_TPREL16_HI: | |
5200 | case R_PPC64_GOT_TPREL16_HA: | |
5201 | tls_type = TLS_TLS | TLS_TPREL; | |
5202 | goto dogot; | |
5203 | ||
5204 | case R_PPC64_GOT_DTPREL16_DS: | |
5205 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
5206 | case R_PPC64_GOT_DTPREL16_HI: | |
5207 | case R_PPC64_GOT_DTPREL16_HA: | |
5208 | tls_type = TLS_TLS | TLS_DTPREL; | |
5209 | goto dogot; | |
5210 | ||
a33d1f77 AM |
5211 | case R_PPC64_GOT16: |
5212 | case R_PPC64_GOT16_DS: | |
5213 | case R_PPC64_GOT16_HA: | |
5214 | case R_PPC64_GOT16_HI: | |
5215 | case R_PPC64_GOT16_LO: | |
5216 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
5217 | dogot: |
5218 | { | |
5219 | struct got_entry *ent; | |
5220 | ||
58ac9f71 AM |
5221 | if (h != NULL) |
5222 | ent = h->got.glist; | |
411e1bfb AM |
5223 | else |
5224 | ent = local_got_ents[r_symndx]; | |
5225 | ||
5226 | for (; ent != NULL; ent = ent->next) | |
5227 | if (ent->addend == rel->r_addend | |
e717da7e | 5228 | && ent->owner == abfd |
411e1bfb AM |
5229 | && ent->tls_type == tls_type) |
5230 | break; | |
5231 | if (ent == NULL) | |
5232 | abort (); | |
5233 | if (ent->got.refcount > 0) | |
5234 | ent->got.refcount -= 1; | |
5235 | } | |
a33d1f77 | 5236 | break; |
65f38f15 | 5237 | |
a33d1f77 AM |
5238 | case R_PPC64_PLT16_HA: |
5239 | case R_PPC64_PLT16_HI: | |
5240 | case R_PPC64_PLT16_LO: | |
5241 | case R_PPC64_PLT32: | |
5242 | case R_PPC64_PLT64: | |
721956f4 AM |
5243 | case R_PPC64_REL14: |
5244 | case R_PPC64_REL14_BRNTAKEN: | |
5245 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 5246 | case R_PPC64_REL24: |
58ac9f71 | 5247 | if (h != NULL) |
5d1634d7 | 5248 | { |
411e1bfb AM |
5249 | struct plt_entry *ent; |
5250 | ||
411e1bfb AM |
5251 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5252 | if (ent->addend == rel->r_addend) | |
5253 | break; | |
5254 | if (ent == NULL) | |
5255 | abort (); | |
5256 | if (ent->plt.refcount > 0) | |
5257 | ent->plt.refcount -= 1; | |
5d1634d7 | 5258 | } |
e86ce104 | 5259 | break; |
5d1634d7 | 5260 | |
a33d1f77 AM |
5261 | default: |
5262 | break; | |
5263 | } | |
5264 | } | |
b34976b6 | 5265 | return TRUE; |
5bd4f169 AM |
5266 | } |
5267 | ||
deb0e272 AM |
5268 | /* The maximum size of .sfpr. */ |
5269 | #define SFPR_MAX (218*4) | |
5270 | ||
5271 | struct sfpr_def_parms | |
5272 | { | |
699733f6 AM |
5273 | const char name[12]; |
5274 | unsigned char lo, hi; | |
deb0e272 AM |
5275 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
5276 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
5277 | }; | |
5278 | ||
5279 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
5280 | ||
5281 | static unsigned int | |
5282 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) | |
5283 | { | |
5284 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
5285 | unsigned int i; | |
5286 | size_t len = strlen (parm->name); | |
5287 | bfd_boolean writing = FALSE; | |
699733f6 | 5288 | char sym[16]; |
deb0e272 AM |
5289 | |
5290 | memcpy (sym, parm->name, len); | |
5291 | sym[len + 2] = 0; | |
5292 | ||
5293 | for (i = parm->lo; i <= parm->hi; i++) | |
5294 | { | |
5295 | struct elf_link_hash_entry *h; | |
5296 | ||
5297 | sym[len + 0] = i / 10 + '0'; | |
5298 | sym[len + 1] = i % 10 + '0'; | |
5299 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
5300 | if (h != NULL | |
f5385ebf | 5301 | && !h->def_regular) |
deb0e272 AM |
5302 | { |
5303 | h->root.type = bfd_link_hash_defined; | |
5304 | h->root.u.def.section = htab->sfpr; | |
5305 | h->root.u.def.value = htab->sfpr->size; | |
5306 | h->type = STT_FUNC; | |
f5385ebf | 5307 | h->def_regular = 1; |
deb0e272 AM |
5308 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
5309 | writing = TRUE; | |
5310 | if (htab->sfpr->contents == NULL) | |
5311 | { | |
5312 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
5313 | if (htab->sfpr->contents == NULL) | |
5314 | return FALSE; | |
5315 | } | |
5316 | } | |
5317 | if (writing) | |
5318 | { | |
5319 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
5320 | if (i != parm->hi) | |
5321 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
5322 | else | |
5323 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
5324 | htab->sfpr->size = p - htab->sfpr->contents; | |
5325 | } | |
5326 | } | |
5327 | ||
5328 | return TRUE; | |
5329 | } | |
5330 | ||
5331 | static bfd_byte * | |
5332 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
5333 | { | |
5334 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5335 | return p + 4; | |
5336 | } | |
5337 | ||
5338 | static bfd_byte * | |
5339 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5340 | { | |
5341 | p = savegpr0 (abfd, p, r); | |
5342 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
5343 | p = p + 4; | |
5344 | bfd_put_32 (abfd, BLR, p); | |
5345 | return p + 4; | |
5346 | } | |
5347 | ||
5348 | static bfd_byte * | |
5349 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
5350 | { | |
5351 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5352 | return p + 4; | |
5353 | } | |
5354 | ||
5355 | static bfd_byte * | |
5356 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5357 | { | |
5358 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
5359 | p = p + 4; | |
5360 | p = restgpr0 (abfd, p, r); | |
5361 | bfd_put_32 (abfd, MTLR_R0, p); | |
5362 | p = p + 4; | |
5363 | if (r == 29) | |
5364 | { | |
5365 | p = restgpr0 (abfd, p, 30); | |
5366 | p = restgpr0 (abfd, p, 31); | |
5367 | } | |
5368 | bfd_put_32 (abfd, BLR, p); | |
5369 | return p + 4; | |
5370 | } | |
5371 | ||
5372 | static bfd_byte * | |
5373 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
5374 | { | |
5375 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5376 | return p + 4; | |
5377 | } | |
5378 | ||
5379 | static bfd_byte * | |
5380 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5381 | { | |
5382 | p = savegpr1 (abfd, p, r); | |
5383 | bfd_put_32 (abfd, BLR, p); | |
5384 | return p + 4; | |
5385 | } | |
5386 | ||
5387 | static bfd_byte * | |
5388 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
5389 | { | |
5390 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5391 | return p + 4; | |
5392 | } | |
5393 | ||
5394 | static bfd_byte * | |
5395 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5396 | { | |
5397 | p = restgpr1 (abfd, p, r); | |
5398 | bfd_put_32 (abfd, BLR, p); | |
5399 | return p + 4; | |
5400 | } | |
5401 | ||
5402 | static bfd_byte * | |
5403 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
5404 | { | |
5405 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5406 | return p + 4; | |
5407 | } | |
5408 | ||
5409 | static bfd_byte * | |
5410 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5411 | { | |
5412 | p = savefpr (abfd, p, r); | |
5413 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
5414 | p = p + 4; | |
5415 | bfd_put_32 (abfd, BLR, p); | |
5416 | return p + 4; | |
5417 | } | |
5418 | ||
5419 | static bfd_byte * | |
5420 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
5421 | { | |
5422 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5423 | return p + 4; | |
5424 | } | |
5425 | ||
5426 | static bfd_byte * | |
5427 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5428 | { | |
5429 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
5430 | p = p + 4; | |
5431 | p = restfpr (abfd, p, r); | |
5432 | bfd_put_32 (abfd, MTLR_R0, p); | |
5433 | p = p + 4; | |
5434 | if (r == 29) | |
5435 | { | |
5436 | p = restfpr (abfd, p, 30); | |
5437 | p = restfpr (abfd, p, 31); | |
5438 | } | |
5439 | bfd_put_32 (abfd, BLR, p); | |
5440 | return p + 4; | |
5441 | } | |
5442 | ||
5443 | static bfd_byte * | |
5444 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5445 | { | |
5446 | p = savefpr (abfd, p, r); | |
5447 | bfd_put_32 (abfd, BLR, p); | |
5448 | return p + 4; | |
5449 | } | |
5450 | ||
5451 | static bfd_byte * | |
5452 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5453 | { | |
5454 | p = restfpr (abfd, p, r); | |
5455 | bfd_put_32 (abfd, BLR, p); | |
5456 | return p + 4; | |
5457 | } | |
5458 | ||
5459 | static bfd_byte * | |
5460 | savevr (bfd *abfd, bfd_byte *p, int r) | |
5461 | { | |
5462 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
5463 | p = p + 4; | |
5464 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
5465 | return p + 4; | |
5466 | } | |
5467 | ||
5468 | static bfd_byte * | |
5469 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
5470 | { | |
5471 | p = savevr (abfd, p, r); | |
5472 | bfd_put_32 (abfd, BLR, p); | |
5473 | return p + 4; | |
5474 | } | |
5475 | ||
5476 | static bfd_byte * | |
5477 | restvr (bfd *abfd, bfd_byte *p, int r) | |
5478 | { | |
5479 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
5480 | p = p + 4; | |
5481 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
5482 | return p + 4; | |
5483 | } | |
5484 | ||
5485 | static bfd_byte * | |
5486 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
5487 | { | |
5488 | p = restvr (abfd, p, r); | |
5489 | bfd_put_32 (abfd, BLR, p); | |
5490 | return p + 4; | |
5491 | } | |
5492 | ||
e86ce104 AM |
5493 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
5494 | information on function code symbol entries to their corresponding | |
5495 | function descriptor symbol entries. */ | |
deb0e272 | 5496 | |
b34976b6 | 5497 | static bfd_boolean |
4ce794b7 | 5498 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 5499 | { |
e86ce104 | 5500 | struct bfd_link_info *info; |
65f38f15 | 5501 | struct ppc_link_hash_table *htab; |
411e1bfb | 5502 | struct plt_entry *ent; |
50bc7936 AM |
5503 | struct ppc_link_hash_entry *fh; |
5504 | struct ppc_link_hash_entry *fdh; | |
5505 | bfd_boolean force_local; | |
5bd4f169 | 5506 | |
50bc7936 AM |
5507 | fh = (struct ppc_link_hash_entry *) h; |
5508 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
b34976b6 | 5509 | return TRUE; |
e86ce104 | 5510 | |
50bc7936 AM |
5511 | if (fh->elf.root.type == bfd_link_hash_warning) |
5512 | fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link; | |
e92d460e | 5513 | |
4ce794b7 | 5514 | info = inf; |
65f38f15 | 5515 | htab = ppc_hash_table (info); |
5bd4f169 | 5516 | |
c09bdfe5 AM |
5517 | /* Resolve undefined references to dot-symbols as the value |
5518 | in the function descriptor, if we have one in a regular object. | |
5519 | This is to satisfy cases like ".quad .foo". Calls to functions | |
5520 | in dynamic objects are handled elsewhere. */ | |
5521 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
5522 | && fh->was_undefined | |
5523 | && (fh->oh->elf.root.type == bfd_link_hash_defined | |
5524 | || fh->oh->elf.root.type == bfd_link_hash_defweak) | |
5525 | && get_opd_info (fh->oh->elf.root.u.def.section) != NULL | |
5526 | && opd_entry_value (fh->oh->elf.root.u.def.section, | |
5527 | fh->oh->elf.root.u.def.value, | |
5528 | &fh->elf.root.u.def.section, | |
5529 | &fh->elf.root.u.def.value) != (bfd_vma) -1) | |
5530 | { | |
5531 | fh->elf.root.type = fh->oh->elf.root.type; | |
f5385ebf | 5532 | fh->elf.forced_local = 1; |
c09bdfe5 AM |
5533 | } |
5534 | ||
e86ce104 AM |
5535 | /* If this is a function code symbol, transfer dynamic linking |
5536 | information to the function descriptor symbol. */ | |
50bc7936 | 5537 | if (!fh->is_func) |
b34976b6 | 5538 | return TRUE; |
e86ce104 | 5539 | |
50bc7936 | 5540 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
5541 | if (ent->plt.refcount > 0) |
5542 | break; | |
50bc7936 AM |
5543 | if (ent == NULL |
5544 | || fh->elf.root.root.string[0] != '.' | |
5545 | || fh->elf.root.root.string[1] == '\0') | |
5546 | return TRUE; | |
5bd4f169 | 5547 | |
50bc7936 AM |
5548 | /* Find the corresponding function descriptor symbol. Create it |
5549 | as undefined if necessary. */ | |
5bd4f169 | 5550 | |
50bc7936 AM |
5551 | fdh = get_fdh (fh, htab); |
5552 | if (fdh != NULL) | |
5553 | while (fdh->elf.root.type == bfd_link_hash_indirect | |
5554 | || fdh->elf.root.type == bfd_link_hash_warning) | |
5555 | fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link; | |
5bd4f169 | 5556 | |
50bc7936 AM |
5557 | if (fdh == NULL |
5558 | && info->shared | |
5559 | && (fh->elf.root.type == bfd_link_hash_undefined | |
5560 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
5561 | { | |
908b32fc | 5562 | fdh = make_fdh (info, fh); |
bb700d78 AM |
5563 | if (fdh == NULL) |
5564 | return FALSE; | |
50bc7936 | 5565 | } |
648cca2c | 5566 | |
908b32fc | 5567 | /* Fake function descriptors are made undefweak. If the function |
433817dd AM |
5568 | code symbol is strong undefined, make the fake sym the same. |
5569 | If the function code symbol is defined, then force the fake | |
5570 | descriptor local; We can't support overriding of symbols in a | |
5571 | shared library on a fake descriptor. */ | |
908b32fc AM |
5572 | |
5573 | if (fdh != NULL | |
5574 | && fdh->fake | |
433817dd | 5575 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
908b32fc | 5576 | { |
433817dd AM |
5577 | if (fh->elf.root.type == bfd_link_hash_undefined) |
5578 | { | |
5579 | fdh->elf.root.type = bfd_link_hash_undefined; | |
5580 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
5581 | } | |
5582 | else if (fh->elf.root.type == bfd_link_hash_defined | |
5583 | || fh->elf.root.type == bfd_link_hash_defweak) | |
5584 | { | |
5585 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
5586 | } | |
908b32fc AM |
5587 | } |
5588 | ||
50bc7936 | 5589 | if (fdh != NULL |
f5385ebf | 5590 | && !fdh->elf.forced_local |
50bc7936 | 5591 | && (info->shared |
f5385ebf AM |
5592 | || fdh->elf.def_dynamic |
5593 | || fdh->elf.ref_dynamic | |
50bc7936 AM |
5594 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
5595 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
5596 | { | |
5597 | if (fdh->elf.dynindx == -1) | |
c152c796 | 5598 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
50bc7936 | 5599 | return FALSE; |
f5385ebf AM |
5600 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
5601 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
5602 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
5603 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
50bc7936 | 5604 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
e86ce104 | 5605 | { |
40d16e0b | 5606 | move_plt_plist (fh, fdh); |
f5385ebf | 5607 | fdh->elf.needs_plt = 1; |
e86ce104 | 5608 | } |
50bc7936 | 5609 | fdh->is_func_descriptor = 1; |
34814b9f AM |
5610 | fdh->oh = fh; |
5611 | fh->oh = fdh; | |
e86ce104 AM |
5612 | } |
5613 | ||
50bc7936 AM |
5614 | /* Now that the info is on the function descriptor, clear the |
5615 | function code sym info. Any function code syms for which we | |
5616 | don't have a definition in a regular file, we force local. | |
5617 | This prevents a shared library from exporting syms that have | |
5618 | been imported from another library. Function code syms that | |
5619 | are really in the library we must leave global to prevent the | |
5620 | linker dragging in a definition from a static library. */ | |
93f3fa99 AM |
5621 | force_local = (!fh->elf.def_regular |
5622 | || fdh == NULL | |
5623 | || !fdh->elf.def_regular | |
5624 | || fdh->elf.forced_local); | |
50bc7936 AM |
5625 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
5626 | ||
b34976b6 | 5627 | return TRUE; |
e86ce104 | 5628 | } |
40b8271b | 5629 | |
e86ce104 | 5630 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
5631 | this hook to a) provide some gcc support functions, and b) transfer |
5632 | dynamic linking information gathered so far on function code symbol | |
5633 | entries, to their corresponding function descriptor symbol entries. */ | |
deb0e272 | 5634 | |
b34976b6 | 5635 | static bfd_boolean |
4ce794b7 AM |
5636 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
5637 | struct bfd_link_info *info) | |
e86ce104 AM |
5638 | { |
5639 | struct ppc_link_hash_table *htab; | |
82bd7b59 | 5640 | unsigned int i; |
deb0e272 AM |
5641 | const struct sfpr_def_parms funcs[] = |
5642 | { | |
5643 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
5644 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
5645 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
5646 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
5647 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
5648 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
5649 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
5650 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
5651 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
5652 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
5653 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
5654 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
5655 | }; | |
e86ce104 AM |
5656 | |
5657 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
5658 | if (htab->sfpr == NULL) |
5659 | /* We don't have any relocs. */ | |
b34976b6 | 5660 | return TRUE; |
82bd7b59 | 5661 | |
deb0e272 AM |
5662 | /* Provide any missing _save* and _rest* functions. */ |
5663 | htab->sfpr->size = 0; | |
5664 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) | |
5665 | if (!sfpr_define (info, &funcs[i])) | |
5666 | return FALSE; | |
82bd7b59 | 5667 | |
4ce794b7 | 5668 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
805fc799 | 5669 | |
eea6121a | 5670 | if (htab->sfpr->size == 0) |
8423293d | 5671 | htab->sfpr->flags |= SEC_EXCLUDE; |
82bd7b59 | 5672 | |
b34976b6 | 5673 | return TRUE; |
e86ce104 AM |
5674 | } |
5675 | ||
5676 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
5677 | regular object. The current definition is in some section of the | |
5678 | dynamic object, but we're not including those sections. We have to | |
5679 | change the definition to something the rest of the link can | |
5680 | understand. */ | |
5681 | ||
b34976b6 | 5682 | static bfd_boolean |
4ce794b7 AM |
5683 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
5684 | struct elf_link_hash_entry *h) | |
e86ce104 AM |
5685 | { |
5686 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
5687 | asection *s; |
5688 | unsigned int power_of_two; | |
5689 | ||
5690 | htab = ppc_hash_table (info); | |
5691 | ||
5692 | /* Deal with function syms. */ | |
5693 | if (h->type == STT_FUNC | |
f5385ebf | 5694 | || h->needs_plt) |
e86ce104 AM |
5695 | { |
5696 | /* Clear procedure linkage table information for any symbol that | |
5697 | won't need a .plt entry. */ | |
411e1bfb AM |
5698 | struct plt_entry *ent; |
5699 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5700 | if (ent->plt.refcount > 0) | |
5701 | break; | |
8387904d | 5702 | if (ent == NULL |
9c7a29a3 AM |
5703 | || SYMBOL_CALLS_LOCAL (info, h) |
5704 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5705 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 5706 | { |
411e1bfb | 5707 | h->plt.plist = NULL; |
f5385ebf | 5708 | h->needs_plt = 0; |
40b8271b | 5709 | } |
5bd4f169 | 5710 | } |
bbd7ec4a | 5711 | else |
411e1bfb | 5712 | h->plt.plist = NULL; |
5bd4f169 AM |
5713 | |
5714 | /* If this is a weak symbol, and there is a real definition, the | |
5715 | processor independent code will have arranged for us to see the | |
5716 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 5717 | if (h->u.weakdef != NULL) |
5bd4f169 | 5718 | { |
f6e332e6 AM |
5719 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5720 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5721 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5722 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
a23b6845 | 5723 | if (ELIMINATE_COPY_RELOCS) |
f6e332e6 | 5724 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 5725 | return TRUE; |
5bd4f169 AM |
5726 | } |
5727 | ||
5bd4f169 AM |
5728 | /* If we are creating a shared library, we must presume that the |
5729 | only references to the symbol are via the global offset table. | |
5730 | For such cases we need not do anything here; the relocations will | |
5731 | be handled correctly by relocate_section. */ | |
5732 | if (info->shared) | |
b34976b6 | 5733 | return TRUE; |
5bd4f169 | 5734 | |
65f38f15 AM |
5735 | /* If there are no references to this symbol that do not use the |
5736 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 5737 | if (!h->non_got_ref) |
b34976b6 | 5738 | return TRUE; |
65f38f15 | 5739 | |
f4656909 | 5740 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 5741 | { |
f4656909 AM |
5742 | struct ppc_link_hash_entry * eh; |
5743 | struct ppc_dyn_relocs *p; | |
65f38f15 | 5744 | |
f4656909 AM |
5745 | eh = (struct ppc_link_hash_entry *) h; |
5746 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5747 | { | |
5748 | s = p->sec->output_section; | |
5749 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5750 | break; | |
5751 | } | |
5752 | ||
5753 | /* If we didn't find any dynamic relocs in read-only sections, then | |
5754 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
5755 | if (p == NULL) | |
5756 | { | |
f5385ebf | 5757 | h->non_got_ref = 0; |
f4656909 AM |
5758 | return TRUE; |
5759 | } | |
65f38f15 AM |
5760 | } |
5761 | ||
5d35169e | 5762 | if (h->plt.plist != NULL) |
97b639ba AM |
5763 | { |
5764 | /* We should never get here, but unfortunately there are versions | |
5765 | of gcc out there that improperly (for this ABI) put initialized | |
5766 | function pointers, vtable refs and suchlike in read-only | |
5767 | sections. Allow them to proceed, but warn that this might | |
5768 | break at runtime. */ | |
5769 | (*_bfd_error_handler) | |
5770 | (_("copy reloc against `%s' requires lazy plt linking; " | |
5771 | "avoid setting LD_BIND_NOW=1 or upgrade gcc"), | |
5772 | h->root.root.string); | |
5773 | } | |
5d35169e AM |
5774 | |
5775 | /* This is a reference to a symbol defined by a dynamic object which | |
5776 | is not a function. */ | |
5777 | ||
909272ee AM |
5778 | if (h->size == 0) |
5779 | { | |
5780 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
5781 | h->root.root.string); | |
5782 | return TRUE; | |
5783 | } | |
5784 | ||
5bd4f169 AM |
5785 | /* We must allocate the symbol in our .dynbss section, which will |
5786 | become part of the .bss section of the executable. There will be | |
5787 | an entry for this symbol in the .dynsym section. The dynamic | |
5788 | object will contain position independent code, so all references | |
5789 | from the dynamic object to this symbol will go through the global | |
5790 | offset table. The dynamic linker will use the .dynsym entry to | |
5791 | determine the address it must put in the global offset table, so | |
5792 | both the dynamic object and the regular object will refer to the | |
5793 | same memory location for the variable. */ | |
5bd4f169 | 5794 | |
04c9666a AM |
5795 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
5796 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
5797 | runtime process image. We need to remember the offset into the |
5798 | .rela.bss section we are going to use. */ | |
5799 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
5800 | { | |
eea6121a | 5801 | htab->relbss->size += sizeof (Elf64_External_Rela); |
f5385ebf | 5802 | h->needs_copy = 1; |
5bd4f169 AM |
5803 | } |
5804 | ||
5805 | /* We need to figure out the alignment required for this symbol. I | |
5806 | have no idea how ELF linkers handle this. */ | |
5807 | power_of_two = bfd_log2 (h->size); | |
5808 | if (power_of_two > 4) | |
5809 | power_of_two = 4; | |
5810 | ||
5811 | /* Apply the required alignment. */ | |
4ce794b7 | 5812 | s = htab->dynbss; |
eea6121a | 5813 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
65f38f15 | 5814 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
5bd4f169 | 5815 | { |
65f38f15 | 5816 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 5817 | return FALSE; |
5bd4f169 AM |
5818 | } |
5819 | ||
5820 | /* Define the symbol as being at this point in the section. */ | |
5821 | h->root.u.def.section = s; | |
eea6121a | 5822 | h->root.u.def.value = s->size; |
5bd4f169 AM |
5823 | |
5824 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 5825 | s->size += h->size; |
5bd4f169 | 5826 | |
b34976b6 | 5827 | return TRUE; |
5bd4f169 AM |
5828 | } |
5829 | ||
e86ce104 AM |
5830 | /* If given a function descriptor symbol, hide both the function code |
5831 | sym and the descriptor. */ | |
5832 | static void | |
4ce794b7 AM |
5833 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
5834 | struct elf_link_hash_entry *h, | |
5835 | bfd_boolean force_local) | |
e86ce104 | 5836 | { |
34814b9f | 5837 | struct ppc_link_hash_entry *eh; |
e86ce104 AM |
5838 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
5839 | ||
34814b9f AM |
5840 | eh = (struct ppc_link_hash_entry *) h; |
5841 | if (eh->is_func_descriptor) | |
e86ce104 | 5842 | { |
34814b9f | 5843 | struct ppc_link_hash_entry *fh = eh->oh; |
e86ce104 | 5844 | |
721956f4 | 5845 | if (fh == NULL) |
d1329ca3 AM |
5846 | { |
5847 | const char *p, *q; | |
5848 | struct ppc_link_hash_table *htab; | |
5849 | char save; | |
5850 | ||
5851 | /* We aren't supposed to use alloca in BFD because on | |
5852 | systems which do not have alloca the version in libiberty | |
5853 | calls xmalloc, which might cause the program to crash | |
5854 | when it runs out of memory. This function doesn't have a | |
5855 | return status, so there's no way to gracefully return an | |
5856 | error. So cheat. We know that string[-1] can be safely | |
34814b9f AM |
5857 | accessed; It's either a string in an ELF string table, |
5858 | or allocated in an objalloc structure. */ | |
d1329ca3 | 5859 | |
34814b9f | 5860 | p = eh->elf.root.root.string - 1; |
d1329ca3 AM |
5861 | save = *p; |
5862 | *(char *) p = '.'; | |
5863 | htab = ppc_hash_table (info); | |
34814b9f AM |
5864 | fh = (struct ppc_link_hash_entry *) |
5865 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
d1329ca3 AM |
5866 | *(char *) p = save; |
5867 | ||
5868 | /* Unfortunately, if it so happens that the string we were | |
5869 | looking for was allocated immediately before this string, | |
5870 | then we overwrote the string terminator. That's the only | |
5871 | reason the lookup should fail. */ | |
5872 | if (fh == NULL) | |
5873 | { | |
34814b9f AM |
5874 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
5875 | while (q >= eh->elf.root.root.string && *q == *p) | |
d1329ca3 | 5876 | --q, --p; |
34814b9f AM |
5877 | if (q < eh->elf.root.root.string && *p == '.') |
5878 | fh = (struct ppc_link_hash_entry *) | |
5879 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
d1329ca3 AM |
5880 | } |
5881 | if (fh != NULL) | |
5882 | { | |
34814b9f AM |
5883 | eh->oh = fh; |
5884 | fh->oh = eh; | |
d1329ca3 AM |
5885 | } |
5886 | } | |
e86ce104 | 5887 | if (fh != NULL) |
34814b9f | 5888 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
e86ce104 AM |
5889 | } |
5890 | } | |
5891 | ||
411e1bfb | 5892 | static bfd_boolean |
8843416a AM |
5893 | get_sym_h (struct elf_link_hash_entry **hp, |
5894 | Elf_Internal_Sym **symp, | |
5895 | asection **symsecp, | |
5896 | char **tls_maskp, | |
5897 | Elf_Internal_Sym **locsymsp, | |
5898 | unsigned long r_symndx, | |
5899 | bfd *ibfd) | |
411e1bfb AM |
5900 | { |
5901 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5902 | ||
5903 | if (r_symndx >= symtab_hdr->sh_info) | |
5904 | { | |
5905 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5906 | struct elf_link_hash_entry *h; | |
5907 | ||
5908 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5909 | while (h->root.type == bfd_link_hash_indirect | |
5910 | || h->root.type == bfd_link_hash_warning) | |
5911 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5912 | ||
5913 | if (hp != NULL) | |
5914 | *hp = h; | |
5915 | ||
5916 | if (symp != NULL) | |
5917 | *symp = NULL; | |
5918 | ||
5919 | if (symsecp != NULL) | |
5920 | { | |
5921 | asection *symsec = NULL; | |
5922 | if (h->root.type == bfd_link_hash_defined | |
5923 | || h->root.type == bfd_link_hash_defweak) | |
5924 | symsec = h->root.u.def.section; | |
5925 | *symsecp = symsec; | |
5926 | } | |
5927 | ||
e7b938ca | 5928 | if (tls_maskp != NULL) |
411e1bfb AM |
5929 | { |
5930 | struct ppc_link_hash_entry *eh; | |
5931 | ||
5932 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 5933 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
5934 | } |
5935 | } | |
5936 | else | |
5937 | { | |
5938 | Elf_Internal_Sym *sym; | |
5939 | Elf_Internal_Sym *locsyms = *locsymsp; | |
5940 | ||
5941 | if (locsyms == NULL) | |
5942 | { | |
5943 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5944 | if (locsyms == NULL) | |
5945 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5946 | symtab_hdr->sh_info, | |
5947 | 0, NULL, NULL, NULL); | |
5948 | if (locsyms == NULL) | |
5949 | return FALSE; | |
5950 | *locsymsp = locsyms; | |
5951 | } | |
5952 | sym = locsyms + r_symndx; | |
5953 | ||
5954 | if (hp != NULL) | |
5955 | *hp = NULL; | |
5956 | ||
5957 | if (symp != NULL) | |
5958 | *symp = sym; | |
5959 | ||
5960 | if (symsecp != NULL) | |
5961 | { | |
5962 | asection *symsec = NULL; | |
5963 | if ((sym->st_shndx != SHN_UNDEF | |
5964 | && sym->st_shndx < SHN_LORESERVE) | |
5965 | || sym->st_shndx > SHN_HIRESERVE) | |
5966 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
5967 | *symsecp = symsec; | |
5968 | } | |
5969 | ||
e7b938ca | 5970 | if (tls_maskp != NULL) |
411e1bfb AM |
5971 | { |
5972 | struct got_entry **lgot_ents; | |
e7b938ca | 5973 | char *tls_mask; |
411e1bfb | 5974 | |
e7b938ca | 5975 | tls_mask = NULL; |
411e1bfb AM |
5976 | lgot_ents = elf_local_got_ents (ibfd); |
5977 | if (lgot_ents != NULL) | |
5978 | { | |
e7b938ca AM |
5979 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
5980 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 5981 | } |
e7b938ca | 5982 | *tls_maskp = tls_mask; |
411e1bfb AM |
5983 | } |
5984 | } | |
5985 | return TRUE; | |
5986 | } | |
5987 | ||
e7b938ca | 5988 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 5989 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 5990 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
5991 | |
5992 | static int | |
0d4792f7 AM |
5993 | get_tls_mask (char **tls_maskp, unsigned long *toc_symndx, |
5994 | Elf_Internal_Sym **locsymsp, | |
4ce794b7 | 5995 | const Elf_Internal_Rela *rel, bfd *ibfd) |
411e1bfb AM |
5996 | { |
5997 | unsigned long r_symndx; | |
0d4792f7 | 5998 | int next_r; |
411e1bfb AM |
5999 | struct elf_link_hash_entry *h; |
6000 | Elf_Internal_Sym *sym; | |
6001 | asection *sec; | |
6002 | bfd_vma off; | |
6003 | ||
6004 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 6005 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 6006 | return 0; |
411e1bfb | 6007 | |
e7b938ca | 6008 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
6009 | || sec == NULL |
6010 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 6011 | return 1; |
411e1bfb AM |
6012 | |
6013 | /* Look inside a TOC section too. */ | |
6014 | if (h != NULL) | |
6015 | { | |
6016 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
6017 | off = h->root.u.def.value; | |
6018 | } | |
6019 | else | |
6020 | off = sym->st_value; | |
6021 | off += rel->r_addend; | |
6022 | BFD_ASSERT (off % 8 == 0); | |
6023 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 6024 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 6025 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 6026 | return 0; |
0d4792f7 AM |
6027 | if (toc_symndx != NULL) |
6028 | *toc_symndx = r_symndx; | |
6029 | if ((h == NULL | |
6030 | || ((h->root.type == bfd_link_hash_defined | |
6031 | || h->root.type == bfd_link_hash_defweak) | |
f5385ebf | 6032 | && !h->def_dynamic)) |
0d4792f7 AM |
6033 | && (next_r == -1 || next_r == -2)) |
6034 | return 1 - next_r; | |
951fd09b | 6035 | return 1; |
411e1bfb AM |
6036 | } |
6037 | ||
754021d0 | 6038 | /* Adjust all global syms defined in opd sections. In gcc generated |
8387904d | 6039 | code for the old ABI, these will already have been done. */ |
754021d0 AM |
6040 | |
6041 | static bfd_boolean | |
6042 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
6043 | { | |
6044 | struct ppc_link_hash_entry *eh; | |
6045 | asection *sym_sec; | |
6046 | long *opd_adjust; | |
6047 | ||
6048 | if (h->root.type == bfd_link_hash_indirect) | |
6049 | return TRUE; | |
6050 | ||
6051 | if (h->root.type == bfd_link_hash_warning) | |
6052 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
6053 | ||
6054 | if (h->root.type != bfd_link_hash_defined | |
6055 | && h->root.type != bfd_link_hash_defweak) | |
6056 | return TRUE; | |
6057 | ||
6058 | eh = (struct ppc_link_hash_entry *) h; | |
6059 | if (eh->adjust_done) | |
6060 | return TRUE; | |
6061 | ||
6062 | sym_sec = eh->elf.root.u.def.section; | |
4025353c AM |
6063 | opd_adjust = get_opd_info (sym_sec); |
6064 | if (opd_adjust != NULL) | |
754021d0 | 6065 | { |
3f764659 | 6066 | long adjust = opd_adjust[eh->elf.root.u.def.value / 8]; |
4025353c AM |
6067 | if (adjust == -1) |
6068 | { | |
6069 | /* This entry has been deleted. */ | |
433817dd | 6070 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->u.deleted_section; |
81688140 AM |
6071 | if (dsec == NULL) |
6072 | { | |
6073 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
6074 | if (elf_discarded_section (dsec)) | |
6075 | { | |
433817dd | 6076 | ppc64_elf_tdata (sym_sec->owner)->u.deleted_section = dsec; |
81688140 AM |
6077 | break; |
6078 | } | |
6079 | } | |
4025353c | 6080 | eh->elf.root.u.def.value = 0; |
81688140 | 6081 | eh->elf.root.u.def.section = dsec; |
4025353c AM |
6082 | } |
6083 | else | |
6084 | eh->elf.root.u.def.value += adjust; | |
754021d0 AM |
6085 | eh->adjust_done = 1; |
6086 | } | |
6087 | return TRUE; | |
6088 | } | |
6089 | ||
8c1d1bb8 AM |
6090 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
6091 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM_SEC | |
6092 | have already been determined. */ | |
6093 | ||
6094 | static bfd_boolean | |
6095 | dec_dynrel_count (bfd_vma r_info, | |
6096 | asection *sec, | |
6097 | struct bfd_link_info *info, | |
6098 | Elf_Internal_Sym **local_syms, | |
6099 | struct elf_link_hash_entry *h, | |
6100 | asection *sym_sec) | |
6101 | { | |
6102 | enum elf_ppc64_reloc_type r_type; | |
6103 | struct ppc_dyn_relocs *p; | |
6104 | struct ppc_dyn_relocs **pp; | |
6105 | ||
6106 | /* Can this reloc be dynamic? This switch, and later tests here | |
6107 | should be kept in sync with the code in check_relocs. */ | |
6108 | r_type = ELF64_R_TYPE (r_info); | |
6109 | switch (r_type) | |
6110 | { | |
6111 | default: | |
6112 | return TRUE; | |
6113 | ||
6114 | case R_PPC64_TPREL16: | |
6115 | case R_PPC64_TPREL16_LO: | |
6116 | case R_PPC64_TPREL16_HI: | |
6117 | case R_PPC64_TPREL16_HA: | |
6118 | case R_PPC64_TPREL16_DS: | |
6119 | case R_PPC64_TPREL16_LO_DS: | |
6120 | case R_PPC64_TPREL16_HIGHER: | |
6121 | case R_PPC64_TPREL16_HIGHERA: | |
6122 | case R_PPC64_TPREL16_HIGHEST: | |
6123 | case R_PPC64_TPREL16_HIGHESTA: | |
6124 | if (!info->shared) | |
6125 | return TRUE; | |
6126 | ||
6127 | case R_PPC64_TPREL64: | |
6128 | case R_PPC64_DTPMOD64: | |
6129 | case R_PPC64_DTPREL64: | |
6130 | case R_PPC64_ADDR64: | |
6131 | case R_PPC64_REL30: | |
6132 | case R_PPC64_REL32: | |
6133 | case R_PPC64_REL64: | |
6134 | case R_PPC64_ADDR14: | |
6135 | case R_PPC64_ADDR14_BRNTAKEN: | |
6136 | case R_PPC64_ADDR14_BRTAKEN: | |
6137 | case R_PPC64_ADDR16: | |
6138 | case R_PPC64_ADDR16_DS: | |
6139 | case R_PPC64_ADDR16_HA: | |
6140 | case R_PPC64_ADDR16_HI: | |
6141 | case R_PPC64_ADDR16_HIGHER: | |
6142 | case R_PPC64_ADDR16_HIGHERA: | |
6143 | case R_PPC64_ADDR16_HIGHEST: | |
6144 | case R_PPC64_ADDR16_HIGHESTA: | |
6145 | case R_PPC64_ADDR16_LO: | |
6146 | case R_PPC64_ADDR16_LO_DS: | |
6147 | case R_PPC64_ADDR24: | |
6148 | case R_PPC64_ADDR32: | |
6149 | case R_PPC64_UADDR16: | |
6150 | case R_PPC64_UADDR32: | |
6151 | case R_PPC64_UADDR64: | |
6152 | case R_PPC64_TOC: | |
6153 | break; | |
6154 | } | |
6155 | ||
6156 | if (local_syms != NULL) | |
6157 | { | |
6158 | unsigned long r_symndx; | |
6159 | Elf_Internal_Sym *sym; | |
6160 | bfd *ibfd = sec->owner; | |
6161 | ||
6162 | r_symndx = ELF64_R_SYM (r_info); | |
6163 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
6164 | return FALSE; | |
6165 | } | |
6166 | ||
6167 | if ((info->shared | |
6168 | && (MUST_BE_DYN_RELOC (r_type) | |
6169 | || (h != NULL | |
6170 | && (!info->symbolic | |
6171 | || h->root.type == bfd_link_hash_defweak | |
6172 | || !h->def_regular)))) | |
6173 | || (ELIMINATE_COPY_RELOCS | |
6174 | && !info->shared | |
6175 | && h != NULL | |
6176 | && (h->root.type == bfd_link_hash_defweak | |
6177 | || !h->def_regular))) | |
6178 | ; | |
6179 | else | |
6180 | return TRUE; | |
6181 | ||
6182 | if (h != NULL) | |
6183 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
8c1d1bb8 | 6184 | else |
6edfbbad | 6185 | { |
60124e18 AM |
6186 | if (sym_sec != NULL) |
6187 | { | |
6188 | void *vpp = &elf_section_data (sym_sec)->local_dynrel; | |
6189 | pp = (struct ppc_dyn_relocs **) vpp; | |
6190 | } | |
6191 | else | |
6192 | { | |
6193 | void *vpp = &elf_section_data (sec)->local_dynrel; | |
6194 | pp = (struct ppc_dyn_relocs **) vpp; | |
6195 | } | |
6196 | ||
6197 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
6198 | with local syms for a given section. Don't report a dynreloc | |
6199 | miscount. */ | |
6200 | if (*pp == NULL) | |
6201 | return TRUE; | |
6edfbbad | 6202 | } |
8c1d1bb8 AM |
6203 | |
6204 | while ((p = *pp) != NULL) | |
6205 | { | |
6206 | if (p->sec == sec) | |
6207 | { | |
6208 | if (!MUST_BE_DYN_RELOC (r_type)) | |
6209 | p->pc_count -= 1; | |
6210 | p->count -= 1; | |
6211 | if (p->count == 0) | |
6212 | *pp = p->next; | |
6213 | return TRUE; | |
6214 | } | |
6215 | pp = &p->next; | |
6216 | } | |
6217 | ||
6218 | (*_bfd_error_handler) (_("dynreloc miscount for %B, section %A"), | |
6219 | sec->owner, sec); | |
6220 | bfd_set_error (bfd_error_bad_value); | |
6221 | return FALSE; | |
6222 | } | |
6223 | ||
754021d0 AM |
6224 | /* Remove unused Official Procedure Descriptor entries. Currently we |
6225 | only remove those associated with functions in discarded link-once | |
6226 | sections, or weakly defined functions that have been overridden. It | |
6227 | would be possible to remove many more entries for statically linked | |
6228 | applications. */ | |
6229 | ||
b34976b6 | 6230 | bfd_boolean |
3f764659 | 6231 | ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info, |
b4f4e59f | 6232 | bfd_boolean no_opd_opt, |
3f764659 | 6233 | bfd_boolean non_overlapping) |
1e2f5b6e AM |
6234 | { |
6235 | bfd *ibfd; | |
754021d0 | 6236 | bfd_boolean some_edited = FALSE; |
3f764659 | 6237 | asection *need_pad = NULL; |
1e2f5b6e | 6238 | |
411e1bfb | 6239 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
6240 | { |
6241 | asection *sec; | |
6242 | Elf_Internal_Rela *relstart, *rel, *relend; | |
6243 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 6244 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
6245 | struct elf_link_hash_entry **sym_hashes; |
6246 | bfd_vma offset; | |
d6fe2dc1 | 6247 | bfd_size_type amt; |
4025353c | 6248 | long *opd_adjust; |
3f764659 JJ |
6249 | bfd_boolean need_edit, add_aux_fields; |
6250 | bfd_size_type cnt_16b = 0; | |
1e2f5b6e AM |
6251 | |
6252 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
46de2a7c | 6253 | if (sec == NULL || sec->size == 0) |
1e2f5b6e AM |
6254 | continue; |
6255 | ||
3f764659 | 6256 | amt = sec->size * sizeof (long) / 8; |
4025353c AM |
6257 | opd_adjust = get_opd_info (sec); |
6258 | if (opd_adjust == NULL) | |
d6fe2dc1 | 6259 | { |
4b85d634 AM |
6260 | /* check_relocs hasn't been called. Must be a ld -r link |
6261 | or --just-symbols object. */ | |
b4f4e59f | 6262 | opd_adjust = bfd_alloc (obfd, amt); |
46de2a7c AM |
6263 | if (opd_adjust == NULL) |
6264 | return FALSE; | |
4025353c | 6265 | ppc64_elf_section_data (sec)->opd.adjust = opd_adjust; |
d6fe2dc1 | 6266 | } |
4025353c | 6267 | memset (opd_adjust, 0, amt); |
1e2f5b6e | 6268 | |
b4f4e59f AM |
6269 | if (no_opd_opt) |
6270 | continue; | |
6271 | ||
4b85d634 AM |
6272 | if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS) |
6273 | continue; | |
6274 | ||
1e2f5b6e AM |
6275 | if (sec->output_section == bfd_abs_section_ptr) |
6276 | continue; | |
6277 | ||
6278 | /* Look through the section relocs. */ | |
6279 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
6280 | continue; | |
6281 | ||
6cdc0ccc | 6282 | local_syms = NULL; |
1e2f5b6e AM |
6283 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
6284 | sym_hashes = elf_sym_hashes (ibfd); | |
6285 | ||
6286 | /* Read the relocations. */ | |
4ce794b7 | 6287 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 6288 | info->keep_memory); |
1e2f5b6e | 6289 | if (relstart == NULL) |
b34976b6 | 6290 | return FALSE; |
1e2f5b6e AM |
6291 | |
6292 | /* First run through the relocs to check they are sane, and to | |
6293 | determine whether we need to edit this opd section. */ | |
b34976b6 | 6294 | need_edit = FALSE; |
3f764659 | 6295 | need_pad = sec; |
1e2f5b6e AM |
6296 | offset = 0; |
6297 | relend = relstart + sec->reloc_count; | |
50bc7936 | 6298 | for (rel = relstart; rel < relend; ) |
1e2f5b6e | 6299 | { |
04c9666a | 6300 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
6301 | unsigned long r_symndx; |
6302 | asection *sym_sec; | |
6303 | struct elf_link_hash_entry *h; | |
6304 | Elf_Internal_Sym *sym; | |
6305 | ||
3f764659 | 6306 | /* .opd contains a regular array of 16 or 24 byte entries. We're |
1e2f5b6e AM |
6307 | only interested in the reloc pointing to a function entry |
6308 | point. */ | |
50bc7936 AM |
6309 | if (rel->r_offset != offset |
6310 | || rel + 1 >= relend | |
6311 | || (rel + 1)->r_offset != offset + 8) | |
1e2f5b6e AM |
6312 | { |
6313 | /* If someone messes with .opd alignment then after a | |
6314 | "ld -r" we might have padding in the middle of .opd. | |
6315 | Also, there's nothing to prevent someone putting | |
6316 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 6317 | optimization for them! */ |
3f764659 | 6318 | broken_opd: |
1e2f5b6e | 6319 | (*_bfd_error_handler) |
d003868e | 6320 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
b34976b6 | 6321 | need_edit = FALSE; |
1e2f5b6e AM |
6322 | break; |
6323 | } | |
6324 | ||
50bc7936 AM |
6325 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
6326 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
6327 | { | |
6328 | (*_bfd_error_handler) | |
d003868e AM |
6329 | (_("%B: unexpected reloc type %u in .opd section"), |
6330 | ibfd, r_type); | |
50bc7936 AM |
6331 | need_edit = FALSE; |
6332 | break; | |
6333 | } | |
6334 | ||
1e2f5b6e | 6335 | r_symndx = ELF64_R_SYM (rel->r_info); |
411e1bfb AM |
6336 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6337 | r_symndx, ibfd)) | |
50bc7936 | 6338 | goto error_ret; |
1e2f5b6e AM |
6339 | |
6340 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
6341 | { | |
411e1bfb AM |
6342 | const char *sym_name; |
6343 | if (h != NULL) | |
6344 | sym_name = h->root.root.string; | |
6345 | else | |
26c61ae5 L |
6346 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
6347 | sym_sec); | |
411e1bfb | 6348 | |
1e2f5b6e | 6349 | (*_bfd_error_handler) |
d003868e AM |
6350 | (_("%B: undefined sym `%s' in .opd section"), |
6351 | ibfd, sym_name); | |
b34976b6 | 6352 | need_edit = FALSE; |
1e2f5b6e AM |
6353 | break; |
6354 | } | |
6355 | ||
51020317 AM |
6356 | /* opd entries are always for functions defined in the |
6357 | current input bfd. If the symbol isn't defined in the | |
6358 | input bfd, then we won't be using the function in this | |
6359 | bfd; It must be defined in a linkonce section in another | |
6360 | bfd, or is weak. It's also possible that we are | |
6361 | discarding the function due to a linker script /DISCARD/, | |
6362 | which we test for via the output_section. */ | |
6363 | if (sym_sec->owner != ibfd | |
6364 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 6365 | need_edit = TRUE; |
1e2f5b6e | 6366 | |
50bc7936 | 6367 | rel += 2; |
3f764659 JJ |
6368 | if (rel == relend |
6369 | || (rel + 1 == relend && rel->r_offset == offset + 16)) | |
6370 | { | |
6371 | if (sec->size == offset + 24) | |
6372 | { | |
6373 | need_pad = NULL; | |
6374 | break; | |
6375 | } | |
6376 | if (rel == relend && sec->size == offset + 16) | |
6377 | { | |
6378 | cnt_16b++; | |
6379 | break; | |
6380 | } | |
6381 | goto broken_opd; | |
6382 | } | |
6383 | ||
6384 | if (rel->r_offset == offset + 24) | |
6385 | offset += 24; | |
6386 | else if (rel->r_offset != offset + 16) | |
6387 | goto broken_opd; | |
6388 | else if (rel + 1 < relend | |
6389 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
6390 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
6391 | { | |
6392 | offset += 16; | |
6393 | cnt_16b++; | |
6394 | } | |
6395 | else if (rel + 2 < relend | |
6396 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64 | |
6397 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC) | |
6398 | { | |
6399 | offset += 24; | |
6400 | rel += 1; | |
6401 | } | |
6402 | else | |
6403 | goto broken_opd; | |
1e2f5b6e AM |
6404 | } |
6405 | ||
3f764659 JJ |
6406 | add_aux_fields = non_overlapping && cnt_16b > 0; |
6407 | ||
6408 | if (need_edit || add_aux_fields) | |
1e2f5b6e AM |
6409 | { |
6410 | Elf_Internal_Rela *write_rel; | |
6411 | bfd_byte *rptr, *wptr; | |
3f764659 | 6412 | bfd_byte *new_contents = NULL; |
b34976b6 | 6413 | bfd_boolean skip; |
3f764659 | 6414 | long opd_ent_size; |
1e2f5b6e AM |
6415 | |
6416 | /* This seems a waste of time as input .opd sections are all | |
6417 | zeros as generated by gcc, but I suppose there's no reason | |
6418 | this will always be so. We might start putting something in | |
6419 | the third word of .opd entries. */ | |
6420 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
6421 | { | |
eea6121a AM |
6422 | bfd_byte *loc; |
6423 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
6cdc0ccc | 6424 | { |
eea6121a AM |
6425 | if (loc != NULL) |
6426 | free (loc); | |
50bc7936 | 6427 | error_ret: |
6cdc0ccc AM |
6428 | if (local_syms != NULL |
6429 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6430 | free (local_syms); | |
6cdc0ccc AM |
6431 | if (elf_section_data (sec)->relocs != relstart) |
6432 | free (relstart); | |
b34976b6 | 6433 | return FALSE; |
6cdc0ccc | 6434 | } |
1e2f5b6e AM |
6435 | sec->contents = loc; |
6436 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
6437 | } | |
6438 | ||
6439 | elf_section_data (sec)->relocs = relstart; | |
6440 | ||
3f764659 | 6441 | new_contents = sec->contents; |
3f764659 JJ |
6442 | if (add_aux_fields) |
6443 | { | |
6444 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
6445 | if (new_contents == NULL) | |
6446 | return FALSE; | |
6447 | need_pad = FALSE; | |
3f764659 | 6448 | } |
b4f4e59f AM |
6449 | wptr = new_contents; |
6450 | rptr = sec->contents; | |
3f764659 | 6451 | |
1e2f5b6e | 6452 | write_rel = relstart; |
b34976b6 | 6453 | skip = FALSE; |
1e2f5b6e | 6454 | offset = 0; |
3f764659 | 6455 | opd_ent_size = 0; |
1e2f5b6e AM |
6456 | for (rel = relstart; rel < relend; rel++) |
6457 | { | |
50bc7936 AM |
6458 | unsigned long r_symndx; |
6459 | asection *sym_sec; | |
6460 | struct elf_link_hash_entry *h; | |
6461 | Elf_Internal_Sym *sym; | |
6462 | ||
6463 | r_symndx = ELF64_R_SYM (rel->r_info); | |
6464 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
d37c89e5 | 6465 | r_symndx, ibfd)) |
50bc7936 AM |
6466 | goto error_ret; |
6467 | ||
1e2f5b6e AM |
6468 | if (rel->r_offset == offset) |
6469 | { | |
50bc7936 | 6470 | struct ppc_link_hash_entry *fdh = NULL; |
3f764659 JJ |
6471 | |
6472 | /* See if the .opd entry is full 24 byte or | |
6473 | 16 byte (with fd_aux entry overlapped with next | |
6474 | fd_func). */ | |
6475 | opd_ent_size = 24; | |
6476 | if ((rel + 2 == relend && sec->size == offset + 16) | |
6477 | || (rel + 3 < relend | |
6478 | && rel[2].r_offset == offset + 16 | |
6479 | && rel[3].r_offset == offset + 24 | |
6480 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64 | |
6481 | && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC)) | |
6482 | opd_ent_size = 16; | |
6483 | ||
4025353c AM |
6484 | if (h != NULL |
6485 | && h->root.root.string[0] == '.') | |
c4f68ce3 AM |
6486 | { |
6487 | fdh = get_fdh ((struct ppc_link_hash_entry *) h, | |
6488 | ppc_hash_table (info)); | |
6489 | if (fdh != NULL | |
6490 | && fdh->elf.root.type != bfd_link_hash_defined | |
6491 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
6492 | fdh = NULL; | |
6493 | } | |
1e2f5b6e | 6494 | |
51020317 AM |
6495 | skip = (sym_sec->owner != ibfd |
6496 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
6497 | if (skip) |
6498 | { | |
4025353c | 6499 | if (fdh != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
6500 | { |
6501 | /* Arrange for the function descriptor sym | |
6502 | to be dropped. */ | |
d6fe2dc1 AM |
6503 | fdh->elf.root.u.def.value = 0; |
6504 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 | 6505 | } |
3f764659 | 6506 | opd_adjust[rel->r_offset / 8] = -1; |
a4aa0fb7 AM |
6507 | } |
6508 | else | |
1e2f5b6e AM |
6509 | { |
6510 | /* We'll be keeping this opd entry. */ | |
6511 | ||
4025353c | 6512 | if (fdh != NULL) |
1e2f5b6e | 6513 | { |
754021d0 AM |
6514 | /* Redefine the function descriptor symbol to |
6515 | this location in the opd section. It is | |
6516 | necessary to update the value here rather | |
6517 | than using an array of adjustments as we do | |
6518 | for local symbols, because various places | |
6519 | in the generic ELF code use the value | |
6520 | stored in u.def.value. */ | |
3f764659 | 6521 | fdh->elf.root.u.def.value = wptr - new_contents; |
754021d0 | 6522 | fdh->adjust_done = 1; |
1e2f5b6e | 6523 | } |
754021d0 AM |
6524 | |
6525 | /* Local syms are a bit tricky. We could | |
6526 | tweak them as they can be cached, but | |
6527 | we'd need to look through the local syms | |
6528 | for the function descriptor sym which we | |
6529 | don't have at the moment. So keep an | |
6530 | array of adjustments. */ | |
3f764659 JJ |
6531 | opd_adjust[rel->r_offset / 8] |
6532 | = (wptr - new_contents) - (rptr - sec->contents); | |
1e2f5b6e AM |
6533 | |
6534 | if (wptr != rptr) | |
3f764659 JJ |
6535 | memcpy (wptr, rptr, opd_ent_size); |
6536 | wptr += opd_ent_size; | |
6537 | if (add_aux_fields && opd_ent_size == 16) | |
6538 | { | |
6539 | memset (wptr, '\0', 8); | |
6540 | wptr += 8; | |
6541 | } | |
1e2f5b6e | 6542 | } |
3f764659 JJ |
6543 | rptr += opd_ent_size; |
6544 | offset += opd_ent_size; | |
1e2f5b6e AM |
6545 | } |
6546 | ||
50bc7936 AM |
6547 | if (skip) |
6548 | { | |
60124e18 AM |
6549 | if (!NO_OPD_RELOCS |
6550 | && !info->relocatable | |
18d944df AM |
6551 | && !dec_dynrel_count (rel->r_info, sec, info, |
6552 | NULL, h, sym_sec)) | |
8c1d1bb8 | 6553 | goto error_ret; |
50bc7936 AM |
6554 | } |
6555 | else | |
1e2f5b6e | 6556 | { |
50bc7936 AM |
6557 | /* We need to adjust any reloc offsets to point to the |
6558 | new opd entries. While we're at it, we may as well | |
6559 | remove redundant relocs. */ | |
3f764659 | 6560 | rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8]; |
1e2f5b6e AM |
6561 | if (write_rel != rel) |
6562 | memcpy (write_rel, rel, sizeof (*rel)); | |
6563 | ++write_rel; | |
6564 | } | |
6565 | } | |
6566 | ||
3f764659 | 6567 | sec->size = wptr - new_contents; |
1e2f5b6e | 6568 | sec->reloc_count = write_rel - relstart; |
3f764659 JJ |
6569 | if (add_aux_fields) |
6570 | { | |
6571 | free (sec->contents); | |
6572 | sec->contents = new_contents; | |
6573 | } | |
6574 | ||
cdcf6e38 AM |
6575 | /* Fudge the size too, as this is used later in |
6576 | elf_bfd_final_link if we are emitting relocs. */ | |
6577 | elf_section_data (sec)->rel_hdr.sh_size | |
6578 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
6579 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
754021d0 | 6580 | some_edited = TRUE; |
1e2f5b6e | 6581 | } |
6cdc0ccc | 6582 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 6583 | free (relstart); |
6cdc0ccc | 6584 | |
411e1bfb AM |
6585 | if (local_syms != NULL |
6586 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6587 | { | |
6588 | if (!info->keep_memory) | |
6589 | free (local_syms); | |
6590 | else | |
6591 | symtab_hdr->contents = (unsigned char *) local_syms; | |
6592 | } | |
6593 | } | |
6594 | ||
754021d0 AM |
6595 | if (some_edited) |
6596 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
6597 | ||
3f764659 JJ |
6598 | /* If we are doing a final link and the last .opd entry is just 16 byte |
6599 | long, add a 8 byte padding after it. */ | |
6600 | if (need_pad != NULL && !info->relocatable) | |
6601 | { | |
6602 | bfd_byte *p; | |
6603 | ||
6604 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
6605 | { | |
6606 | BFD_ASSERT (need_pad->size > 0); | |
6607 | ||
6608 | p = bfd_malloc (need_pad->size + 8); | |
6609 | if (p == NULL) | |
6610 | return FALSE; | |
699733f6 | 6611 | |
3f764659 JJ |
6612 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
6613 | p, 0, need_pad->size)) | |
6614 | return FALSE; | |
6615 | ||
6616 | need_pad->contents = p; | |
6617 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
6618 | } | |
6619 | else | |
6620 | { | |
6621 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
6622 | if (p == NULL) | |
6623 | return FALSE; | |
6624 | ||
6625 | need_pad->contents = p; | |
6626 | } | |
6627 | ||
6628 | memset (need_pad->contents + need_pad->size, 0, 8); | |
6629 | need_pad->size += 8; | |
6630 | } | |
6631 | ||
411e1bfb AM |
6632 | return TRUE; |
6633 | } | |
6634 | ||
e1918d23 | 6635 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
411e1bfb | 6636 | |
e1918d23 | 6637 | asection * |
4ce794b7 | 6638 | ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
411e1bfb | 6639 | { |
411e1bfb AM |
6640 | struct ppc_link_hash_table *htab; |
6641 | ||
411e1bfb | 6642 | htab = ppc_hash_table (info); |
a48ebf4d AM |
6643 | if (htab->tls_get_addr != NULL) |
6644 | { | |
8387904d | 6645 | struct ppc_link_hash_entry *h = htab->tls_get_addr; |
a48ebf4d | 6646 | |
8387904d AM |
6647 | while (h->elf.root.type == bfd_link_hash_indirect |
6648 | || h->elf.root.type == bfd_link_hash_warning) | |
6649 | h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link; | |
a48ebf4d AM |
6650 | |
6651 | htab->tls_get_addr = h; | |
8387904d AM |
6652 | |
6653 | if (htab->tls_get_addr_fd == NULL | |
6654 | && h->oh != NULL | |
c4f68ce3 AM |
6655 | && h->oh->is_func_descriptor |
6656 | && (h->oh->elf.root.type == bfd_link_hash_defined | |
6657 | || h->oh->elf.root.type == bfd_link_hash_defweak)) | |
8387904d AM |
6658 | htab->tls_get_addr_fd = h->oh; |
6659 | } | |
6660 | ||
6661 | if (htab->tls_get_addr_fd != NULL) | |
6662 | { | |
6663 | struct ppc_link_hash_entry *h = htab->tls_get_addr_fd; | |
6664 | ||
6665 | while (h->elf.root.type == bfd_link_hash_indirect | |
6666 | || h->elf.root.type == bfd_link_hash_warning) | |
6667 | h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link; | |
6668 | ||
6669 | htab->tls_get_addr_fd = h; | |
a48ebf4d AM |
6670 | } |
6671 | ||
e1918d23 | 6672 | return _bfd_elf_tls_setup (obfd, info); |
951fd09b | 6673 | } |
411e1bfb | 6674 | |
951fd09b AM |
6675 | /* Run through all the TLS relocs looking for optimization |
6676 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
6677 | a preliminary section layout so that we know the TLS segment | |
6678 | offsets. We can't optimize earlier because some optimizations need | |
6679 | to know the tp offset, and we need to optimize before allocating | |
6680 | dynamic relocations. */ | |
6681 | ||
6682 | bfd_boolean | |
4ce794b7 | 6683 | ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
951fd09b AM |
6684 | { |
6685 | bfd *ibfd; | |
6686 | asection *sec; | |
6687 | struct ppc_link_hash_table *htab; | |
6688 | ||
1049f94e | 6689 | if (info->relocatable || info->shared) |
411e1bfb AM |
6690 | return TRUE; |
6691 | ||
951fd09b | 6692 | htab = ppc_hash_table (info); |
411e1bfb AM |
6693 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
6694 | { | |
6695 | Elf_Internal_Sym *locsyms = NULL; | |
6696 | ||
6697 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
6698 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
6699 | { | |
6700 | Elf_Internal_Rela *relstart, *rel, *relend; | |
6701 | int expecting_tls_get_addr; | |
6702 | ||
6703 | /* Read the relocations. */ | |
4ce794b7 | 6704 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 6705 | info->keep_memory); |
411e1bfb AM |
6706 | if (relstart == NULL) |
6707 | return FALSE; | |
6708 | ||
6709 | expecting_tls_get_addr = 0; | |
6710 | relend = relstart + sec->reloc_count; | |
6711 | for (rel = relstart; rel < relend; rel++) | |
6712 | { | |
6713 | enum elf_ppc64_reloc_type r_type; | |
6714 | unsigned long r_symndx; | |
6715 | struct elf_link_hash_entry *h; | |
6716 | Elf_Internal_Sym *sym; | |
6717 | asection *sym_sec; | |
e7b938ca AM |
6718 | char *tls_mask; |
6719 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 6720 | bfd_vma value; |
951fd09b | 6721 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
6722 | |
6723 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 6724 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
6725 | r_symndx, ibfd)) |
6726 | { | |
6727 | err_free_rel: | |
6728 | if (elf_section_data (sec)->relocs != relstart) | |
6729 | free (relstart); | |
6730 | if (locsyms != NULL | |
6731 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
6732 | != (unsigned char *) locsyms)) | |
6733 | free (locsyms); | |
6734 | return FALSE; | |
6735 | } | |
6736 | ||
6737 | if (h != NULL) | |
6738 | { | |
6739 | if (h->root.type != bfd_link_hash_defined | |
6740 | && h->root.type != bfd_link_hash_defweak) | |
6741 | continue; | |
6742 | value = h->root.u.def.value; | |
6743 | } | |
6744 | else | |
4025353c AM |
6745 | /* Symbols referenced by TLS relocs must be of type |
6746 | STT_TLS. So no need for .opd local sym adjust. */ | |
6747 | value = sym->st_value; | |
951fd09b | 6748 | |
411e1bfb | 6749 | ok_tprel = FALSE; |
951fd09b AM |
6750 | is_local = FALSE; |
6751 | if (h == NULL | |
f5385ebf | 6752 | || !h->def_dynamic) |
411e1bfb | 6753 | { |
951fd09b | 6754 | is_local = TRUE; |
411e1bfb AM |
6755 | value += sym_sec->output_offset; |
6756 | value += sym_sec->output_section->vma; | |
e1918d23 | 6757 | value -= htab->elf.tls_sec->vma; |
411e1bfb AM |
6758 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) |
6759 | < (bfd_vma) 1 << 32); | |
6760 | } | |
6761 | ||
4ce794b7 | 6762 | r_type = ELF64_R_TYPE (rel->r_info); |
411e1bfb AM |
6763 | switch (r_type) |
6764 | { | |
6765 | case R_PPC64_GOT_TLSLD16: | |
6766 | case R_PPC64_GOT_TLSLD16_LO: | |
6767 | case R_PPC64_GOT_TLSLD16_HI: | |
6768 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
6769 | /* These relocs should never be against a symbol |
6770 | defined in a shared lib. Leave them alone if | |
6771 | that turns out to be the case. */ | |
e717da7e | 6772 | ppc64_tlsld_got (ibfd)->refcount -= 1; |
951fd09b AM |
6773 | if (!is_local) |
6774 | continue; | |
6775 | ||
951fd09b AM |
6776 | /* LD -> LE */ |
6777 | tls_set = 0; | |
6778 | tls_clear = TLS_LD; | |
e7b938ca | 6779 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
6780 | expecting_tls_get_addr = 1; |
6781 | break; | |
6782 | ||
6783 | case R_PPC64_GOT_TLSGD16: | |
6784 | case R_PPC64_GOT_TLSGD16_LO: | |
6785 | case R_PPC64_GOT_TLSGD16_HI: | |
6786 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 6787 | if (ok_tprel) |
411e1bfb AM |
6788 | /* GD -> LE */ |
6789 | tls_set = 0; | |
6790 | else | |
6791 | /* GD -> IE */ | |
951fd09b AM |
6792 | tls_set = TLS_TLS | TLS_TPRELGD; |
6793 | tls_clear = TLS_GD; | |
e7b938ca | 6794 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
6795 | expecting_tls_get_addr = 1; |
6796 | break; | |
6797 | ||
6798 | case R_PPC64_GOT_TPREL16_DS: | |
6799 | case R_PPC64_GOT_TPREL16_LO_DS: | |
6800 | case R_PPC64_GOT_TPREL16_HI: | |
6801 | case R_PPC64_GOT_TPREL16_HA: | |
6802 | expecting_tls_get_addr = 0; | |
6803 | if (ok_tprel) | |
6804 | { | |
6805 | /* IE -> LE */ | |
6806 | tls_set = 0; | |
6807 | tls_clear = TLS_TPREL; | |
e7b938ca | 6808 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
6809 | break; |
6810 | } | |
6811 | else | |
6812 | continue; | |
6813 | ||
6814 | case R_PPC64_REL14: | |
6815 | case R_PPC64_REL14_BRTAKEN: | |
6816 | case R_PPC64_REL14_BRNTAKEN: | |
6817 | case R_PPC64_REL24: | |
6818 | if (h != NULL | |
8387904d AM |
6819 | && (h == &htab->tls_get_addr->elf |
6820 | || h == &htab->tls_get_addr_fd->elf)) | |
411e1bfb AM |
6821 | { |
6822 | if (!expecting_tls_get_addr | |
6823 | && rel != relstart | |
6824 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
6825 | == R_PPC64_TOC16) | |
6826 | || (ELF64_R_TYPE (rel[-1].r_info) | |
6827 | == R_PPC64_TOC16_LO))) | |
6828 | { | |
6829 | /* Check for toc tls entries. */ | |
6830 | char *toc_tls; | |
951fd09b | 6831 | int retval; |
411e1bfb | 6832 | |
0d4792f7 | 6833 | retval = get_tls_mask (&toc_tls, NULL, &locsyms, |
951fd09b AM |
6834 | rel - 1, ibfd); |
6835 | if (retval == 0) | |
411e1bfb AM |
6836 | goto err_free_rel; |
6837 | if (toc_tls != NULL) | |
951fd09b | 6838 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
6839 | } |
6840 | ||
6841 | if (expecting_tls_get_addr) | |
6842 | { | |
6843 | struct plt_entry *ent; | |
6844 | for (ent = h->plt.plist; ent; ent = ent->next) | |
6845 | if (ent->addend == 0) | |
6846 | { | |
6847 | if (ent->plt.refcount > 0) | |
6848 | ent->plt.refcount -= 1; | |
6849 | break; | |
6850 | } | |
6851 | } | |
6852 | } | |
6853 | expecting_tls_get_addr = 0; | |
6854 | continue; | |
6855 | ||
6856 | case R_PPC64_TPREL64: | |
6857 | expecting_tls_get_addr = 0; | |
6858 | if (ok_tprel) | |
6859 | { | |
6860 | /* IE -> LE */ | |
6861 | tls_set = TLS_EXPLICIT; | |
6862 | tls_clear = TLS_TPREL; | |
6863 | break; | |
6864 | } | |
6865 | else | |
6866 | continue; | |
6867 | ||
6868 | case R_PPC64_DTPMOD64: | |
6869 | expecting_tls_get_addr = 0; | |
951fd09b AM |
6870 | if (rel + 1 < relend |
6871 | && (rel[1].r_info | |
6872 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
6873 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 6874 | { |
951fd09b | 6875 | if (ok_tprel) |
411e1bfb | 6876 | /* GD -> LE */ |
951fd09b | 6877 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
6878 | else |
6879 | /* GD -> IE */ | |
951fd09b AM |
6880 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
6881 | tls_clear = TLS_GD; | |
411e1bfb AM |
6882 | } |
6883 | else | |
6884 | { | |
951fd09b AM |
6885 | if (!is_local) |
6886 | continue; | |
6887 | ||
6888 | /* LD -> LE */ | |
6889 | tls_set = TLS_EXPLICIT; | |
6890 | tls_clear = TLS_LD; | |
411e1bfb AM |
6891 | } |
6892 | break; | |
6893 | ||
6894 | default: | |
6895 | expecting_tls_get_addr = 0; | |
6896 | continue; | |
6897 | } | |
6898 | ||
6899 | if ((tls_set & TLS_EXPLICIT) == 0) | |
6900 | { | |
6901 | struct got_entry *ent; | |
6902 | ||
6903 | /* Adjust got entry for this reloc. */ | |
6904 | if (h != NULL) | |
6905 | ent = h->got.glist; | |
6906 | else | |
6907 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
6908 | ||
6909 | for (; ent != NULL; ent = ent->next) | |
6910 | if (ent->addend == rel->r_addend | |
e717da7e | 6911 | && ent->owner == ibfd |
e7b938ca | 6912 | && ent->tls_type == tls_type) |
411e1bfb AM |
6913 | break; |
6914 | if (ent == NULL) | |
6915 | abort (); | |
6916 | ||
6917 | if (tls_set == 0) | |
6918 | { | |
6919 | /* We managed to get rid of a got entry. */ | |
6920 | if (ent->got.refcount > 0) | |
6921 | ent->got.refcount -= 1; | |
6922 | } | |
411e1bfb | 6923 | } |
8c1d1bb8 | 6924 | else |
411e1bfb | 6925 | { |
8c1d1bb8 AM |
6926 | /* If we got rid of a DTPMOD/DTPREL reloc pair then |
6927 | we'll lose one or two dyn relocs. */ | |
6928 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
6929 | NULL, h, sym_sec)) | |
6930 | return FALSE; | |
6931 | ||
6932 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) | |
6933 | { | |
6934 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
6935 | NULL, h, sym_sec)) | |
6936 | return FALSE; | |
6937 | } | |
411e1bfb AM |
6938 | } |
6939 | ||
e7b938ca AM |
6940 | *tls_mask |= tls_set; |
6941 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
6942 | } |
6943 | ||
6944 | if (elf_section_data (sec)->relocs != relstart) | |
6945 | free (relstart); | |
6946 | } | |
6947 | ||
6948 | if (locsyms != NULL | |
6949 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
6950 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
6951 | { |
6952 | if (!info->keep_memory) | |
411e1bfb | 6953 | free (locsyms); |
6cdc0ccc | 6954 | else |
411e1bfb | 6955 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 6956 | } |
1e2f5b6e | 6957 | } |
b34976b6 | 6958 | return TRUE; |
1e2f5b6e | 6959 | } |
b34976b6 | 6960 | |
c5614fa4 AM |
6961 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
6962 | the values of any global symbols in a toc section that has been | |
6963 | edited. Globals in toc sections should be a rarity, so this function | |
6964 | sets a flag if any are found in toc sections other than the one just | |
6965 | edited, so that futher hash table traversals can be avoided. */ | |
6966 | ||
6967 | struct adjust_toc_info | |
6968 | { | |
6969 | asection *toc; | |
6970 | unsigned long *skip; | |
6971 | bfd_boolean global_toc_syms; | |
6972 | }; | |
6973 | ||
6974 | static bfd_boolean | |
6975 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
6976 | { | |
6977 | struct ppc_link_hash_entry *eh; | |
6978 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
6979 | ||
6980 | if (h->root.type == bfd_link_hash_indirect) | |
6981 | return TRUE; | |
6982 | ||
6983 | if (h->root.type == bfd_link_hash_warning) | |
6984 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
6985 | ||
6986 | if (h->root.type != bfd_link_hash_defined | |
6987 | && h->root.type != bfd_link_hash_defweak) | |
6988 | return TRUE; | |
6989 | ||
6990 | eh = (struct ppc_link_hash_entry *) h; | |
6991 | if (eh->adjust_done) | |
6992 | return TRUE; | |
6993 | ||
6994 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
6995 | { | |
6996 | unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3]; | |
6997 | if (skip != (unsigned long) -1) | |
6998 | eh->elf.root.u.def.value -= skip; | |
6999 | else | |
7000 | { | |
7001 | (*_bfd_error_handler) | |
7002 | (_("%s defined in removed toc entry"), eh->elf.root.root.string); | |
7003 | eh->elf.root.u.def.section = &bfd_abs_section; | |
7004 | eh->elf.root.u.def.value = 0; | |
7005 | } | |
7006 | eh->adjust_done = 1; | |
7007 | } | |
7008 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
7009 | toc_inf->global_toc_syms = TRUE; | |
7010 | ||
7011 | return TRUE; | |
7012 | } | |
7013 | ||
7014 | /* Examine all relocs referencing .toc sections in order to remove | |
7015 | unused .toc entries. */ | |
7016 | ||
7017 | bfd_boolean | |
7018 | ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) | |
7019 | { | |
7020 | bfd *ibfd; | |
7021 | struct adjust_toc_info toc_inf; | |
7022 | ||
7023 | toc_inf.global_toc_syms = TRUE; | |
7024 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
7025 | { | |
7026 | asection *toc, *sec; | |
7027 | Elf_Internal_Shdr *symtab_hdr; | |
7028 | Elf_Internal_Sym *local_syms; | |
7029 | struct elf_link_hash_entry **sym_hashes; | |
92b7a70f | 7030 | Elf_Internal_Rela *relstart, *rel; |
c5614fa4 AM |
7031 | unsigned long *skip, *drop; |
7032 | unsigned char *used; | |
7033 | unsigned char *keep, last, some_unused; | |
7034 | ||
7035 | toc = bfd_get_section_by_name (ibfd, ".toc"); | |
7036 | if (toc == NULL | |
92b7a70f | 7037 | || toc->size == 0 |
c5614fa4 AM |
7038 | || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS |
7039 | || elf_discarded_section (toc)) | |
7040 | continue; | |
7041 | ||
7042 | local_syms = NULL; | |
7043 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
7044 | sym_hashes = elf_sym_hashes (ibfd); | |
7045 | ||
7046 | /* Look at sections dropped from the final link. */ | |
7047 | skip = NULL; | |
7048 | relstart = NULL; | |
7049 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
7050 | { | |
7051 | if (sec->reloc_count == 0 | |
7052 | || !elf_discarded_section (sec) | |
7053 | || get_opd_info (sec) | |
7054 | || (sec->flags & SEC_ALLOC) == 0 | |
7055 | || (sec->flags & SEC_DEBUGGING) != 0) | |
7056 | continue; | |
7057 | ||
7058 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
7059 | if (relstart == NULL) | |
7060 | goto error_ret; | |
7061 | ||
7062 | /* Run through the relocs to see which toc entries might be | |
7063 | unused. */ | |
7064 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
7065 | { | |
7066 | enum elf_ppc64_reloc_type r_type; | |
7067 | unsigned long r_symndx; | |
7068 | asection *sym_sec; | |
7069 | struct elf_link_hash_entry *h; | |
7070 | Elf_Internal_Sym *sym; | |
7071 | bfd_vma val; | |
7072 | ||
7073 | r_type = ELF64_R_TYPE (rel->r_info); | |
7074 | switch (r_type) | |
7075 | { | |
7076 | default: | |
7077 | continue; | |
7078 | ||
7079 | case R_PPC64_TOC16: | |
7080 | case R_PPC64_TOC16_LO: | |
7081 | case R_PPC64_TOC16_HI: | |
7082 | case R_PPC64_TOC16_HA: | |
7083 | case R_PPC64_TOC16_DS: | |
7084 | case R_PPC64_TOC16_LO_DS: | |
7085 | break; | |
7086 | } | |
7087 | ||
7088 | r_symndx = ELF64_R_SYM (rel->r_info); | |
7089 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
7090 | r_symndx, ibfd)) | |
7091 | goto error_ret; | |
7092 | ||
7093 | if (sym_sec != toc) | |
7094 | continue; | |
7095 | ||
7096 | if (h != NULL) | |
7097 | val = h->root.u.def.value; | |
7098 | else | |
7099 | val = sym->st_value; | |
7100 | val += rel->r_addend; | |
7101 | ||
7102 | if (val >= toc->size) | |
7103 | continue; | |
7104 | ||
7105 | /* Anything in the toc ought to be aligned to 8 bytes. | |
7106 | If not, don't mark as unused. */ | |
7107 | if (val & 7) | |
7108 | continue; | |
7109 | ||
7110 | if (skip == NULL) | |
7111 | { | |
7112 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8); | |
7113 | if (skip == NULL) | |
7114 | goto error_ret; | |
7115 | } | |
7116 | ||
7117 | skip[val >> 3] = 1; | |
7118 | } | |
7119 | ||
7120 | if (elf_section_data (sec)->relocs != relstart) | |
7121 | free (relstart); | |
7122 | } | |
7123 | ||
7124 | if (skip == NULL) | |
7125 | continue; | |
7126 | ||
7127 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
7128 | if (used == NULL) | |
7129 | { | |
7130 | error_ret: | |
7131 | if (local_syms != NULL | |
7132 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
7133 | free (local_syms); | |
7134 | if (sec != NULL | |
7135 | && relstart != NULL | |
7136 | && elf_section_data (sec)->relocs != relstart) | |
7137 | free (relstart); | |
7138 | if (skip != NULL) | |
7139 | free (skip); | |
7140 | return FALSE; | |
7141 | } | |
7142 | ||
7143 | /* Now check all kept sections that might reference the toc. */ | |
7144 | for (sec = ibfd->sections; | |
7145 | sec != NULL; | |
7146 | /* Check the toc itself last. */ | |
7147 | sec = (sec == toc ? NULL | |
7148 | : sec->next == toc && sec->next->next ? sec->next->next | |
7149 | : sec->next == NULL ? toc | |
7150 | : sec->next)) | |
7151 | { | |
7152 | int repeat; | |
7153 | ||
7154 | if (sec->reloc_count == 0 | |
7155 | || elf_discarded_section (sec) | |
7156 | || get_opd_info (sec) | |
7157 | || (sec->flags & SEC_ALLOC) == 0 | |
7158 | || (sec->flags & SEC_DEBUGGING) != 0) | |
7159 | continue; | |
7160 | ||
7161 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE); | |
7162 | if (relstart == NULL) | |
7163 | goto error_ret; | |
7164 | ||
7165 | /* Mark toc entries referenced as used. */ | |
7166 | repeat = 0; | |
7167 | do | |
7168 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
7169 | { | |
7170 | enum elf_ppc64_reloc_type r_type; | |
7171 | unsigned long r_symndx; | |
7172 | asection *sym_sec; | |
7173 | struct elf_link_hash_entry *h; | |
7174 | Elf_Internal_Sym *sym; | |
7175 | bfd_vma val; | |
7176 | ||
7177 | r_type = ELF64_R_TYPE (rel->r_info); | |
7178 | switch (r_type) | |
7179 | { | |
7180 | case R_PPC64_TOC16: | |
7181 | case R_PPC64_TOC16_LO: | |
7182 | case R_PPC64_TOC16_HI: | |
7183 | case R_PPC64_TOC16_HA: | |
7184 | case R_PPC64_TOC16_DS: | |
7185 | case R_PPC64_TOC16_LO_DS: | |
7186 | /* In case we're taking addresses of toc entries. */ | |
7187 | case R_PPC64_ADDR64: | |
7188 | break; | |
7189 | ||
7190 | default: | |
7191 | continue; | |
7192 | } | |
7193 | ||
7194 | r_symndx = ELF64_R_SYM (rel->r_info); | |
7195 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
7196 | r_symndx, ibfd)) | |
7197 | { | |
7198 | free (used); | |
7199 | goto error_ret; | |
7200 | } | |
7201 | ||
7202 | if (sym_sec != toc) | |
7203 | continue; | |
7204 | ||
7205 | if (h != NULL) | |
7206 | val = h->root.u.def.value; | |
7207 | else | |
7208 | val = sym->st_value; | |
7209 | val += rel->r_addend; | |
7210 | ||
7211 | if (val >= toc->size) | |
7212 | continue; | |
7213 | ||
7214 | /* For the toc section, we only mark as used if | |
7215 | this entry itself isn't unused. */ | |
7216 | if (sec == toc | |
7217 | && !used[val >> 3] | |
7218 | && (used[rel->r_offset >> 3] | |
7219 | || !skip[rel->r_offset >> 3])) | |
7220 | /* Do all the relocs again, to catch reference | |
7221 | chains. */ | |
7222 | repeat = 1; | |
7223 | ||
7224 | used[val >> 3] = 1; | |
7225 | } | |
7226 | while (repeat); | |
7227 | } | |
7228 | ||
7229 | /* Merge the used and skip arrays. Assume that TOC | |
7230 | doublewords not appearing as either used or unused belong | |
7231 | to to an entry more than one doubleword in size. */ | |
7232 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
7233 | drop < skip + (toc->size + 7) / 8; | |
7234 | ++drop, ++keep) | |
7235 | { | |
7236 | if (*keep) | |
7237 | { | |
7238 | *drop = 0; | |
7239 | last = 0; | |
7240 | } | |
7241 | else if (*drop) | |
7242 | { | |
7243 | some_unused = 1; | |
7244 | last = 1; | |
7245 | } | |
7246 | else | |
7247 | *drop = last; | |
7248 | } | |
7249 | ||
7250 | free (used); | |
7251 | ||
7252 | if (some_unused) | |
7253 | { | |
7254 | bfd_byte *contents, *src; | |
7255 | unsigned long off; | |
7256 | ||
7257 | /* Shuffle the toc contents, and at the same time convert the | |
7258 | skip array from booleans into offsets. */ | |
7259 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
7260 | goto error_ret; | |
7261 | ||
7262 | elf_section_data (toc)->this_hdr.contents = contents; | |
7263 | ||
7264 | for (src = contents, off = 0, drop = skip; | |
7265 | src < contents + toc->size; | |
7266 | src += 8, ++drop) | |
7267 | { | |
7268 | if (*drop) | |
7269 | { | |
7270 | *drop = (unsigned long) -1; | |
7271 | off += 8; | |
7272 | } | |
7273 | else if (off != 0) | |
7274 | { | |
7275 | *drop = off; | |
7276 | memcpy (src - off, src, 8); | |
7277 | } | |
7278 | } | |
7279 | toc->rawsize = toc->size; | |
7280 | toc->size = src - contents - off; | |
7281 | ||
92b7a70f AM |
7282 | if (toc->reloc_count != 0) |
7283 | { | |
7284 | Elf_Internal_Rela *wrel; | |
7285 | bfd_size_type sz; | |
c5614fa4 | 7286 | |
92b7a70f AM |
7287 | /* Read toc relocs. */ |
7288 | relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
7289 | TRUE); | |
7290 | if (relstart == NULL) | |
7291 | goto error_ret; | |
7292 | ||
7293 | /* Remove unused toc relocs, and adjust those we keep. */ | |
7294 | wrel = relstart; | |
7295 | for (rel = relstart; rel < relstart + toc->reloc_count; ++rel) | |
7296 | if (skip[rel->r_offset >> 3] != (unsigned long) -1) | |
7297 | { | |
7298 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
7299 | wrel->r_info = rel->r_info; | |
7300 | wrel->r_addend = rel->r_addend; | |
7301 | ++wrel; | |
7302 | } | |
8c1d1bb8 AM |
7303 | else if (!dec_dynrel_count (rel->r_info, toc, info, |
7304 | &local_syms, NULL, NULL)) | |
7305 | goto error_ret; | |
35090471 | 7306 | |
92b7a70f AM |
7307 | toc->reloc_count = wrel - relstart; |
7308 | sz = elf_section_data (toc)->rel_hdr.sh_entsize; | |
7309 | elf_section_data (toc)->rel_hdr.sh_size = toc->reloc_count * sz; | |
7310 | BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL); | |
7311 | } | |
c5614fa4 AM |
7312 | |
7313 | /* Adjust addends for relocs against the toc section sym. */ | |
7314 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
7315 | { | |
7316 | if (sec->reloc_count == 0 | |
7317 | || elf_discarded_section (sec)) | |
7318 | continue; | |
7319 | ||
7320 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
7321 | TRUE); | |
7322 | if (relstart == NULL) | |
7323 | goto error_ret; | |
7324 | ||
7325 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
7326 | { | |
7327 | enum elf_ppc64_reloc_type r_type; | |
7328 | unsigned long r_symndx; | |
7329 | asection *sym_sec; | |
7330 | struct elf_link_hash_entry *h; | |
7331 | Elf_Internal_Sym *sym; | |
7332 | ||
7333 | r_type = ELF64_R_TYPE (rel->r_info); | |
7334 | switch (r_type) | |
7335 | { | |
7336 | default: | |
7337 | continue; | |
7338 | ||
7339 | case R_PPC64_TOC16: | |
7340 | case R_PPC64_TOC16_LO: | |
7341 | case R_PPC64_TOC16_HI: | |
7342 | case R_PPC64_TOC16_HA: | |
7343 | case R_PPC64_TOC16_DS: | |
7344 | case R_PPC64_TOC16_LO_DS: | |
7345 | case R_PPC64_ADDR64: | |
7346 | break; | |
7347 | } | |
7348 | ||
7349 | r_symndx = ELF64_R_SYM (rel->r_info); | |
7350 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
7351 | r_symndx, ibfd)) | |
7352 | goto error_ret; | |
7353 | ||
7354 | if (sym_sec != toc || h != NULL || sym->st_value != 0) | |
7355 | continue; | |
7356 | ||
7357 | rel->r_addend -= skip[rel->r_addend >> 3]; | |
7358 | } | |
7359 | } | |
7360 | ||
7361 | /* We shouldn't have local or global symbols defined in the TOC, | |
7362 | but handle them anyway. */ | |
7363 | if (local_syms != NULL) | |
7364 | { | |
7365 | Elf_Internal_Sym *sym; | |
7366 | ||
7367 | for (sym = local_syms; | |
7368 | sym < local_syms + symtab_hdr->sh_info; | |
7369 | ++sym) | |
7370 | if (sym->st_shndx != SHN_UNDEF | |
7371 | && (sym->st_shndx < SHN_LORESERVE | |
7372 | || sym->st_shndx > SHN_HIRESERVE) | |
7373 | && sym->st_value != 0 | |
7374 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
7375 | { | |
7376 | if (skip[sym->st_value >> 3] != (unsigned long) -1) | |
7377 | sym->st_value -= skip[sym->st_value >> 3]; | |
7378 | else | |
7379 | { | |
7380 | (*_bfd_error_handler) | |
7381 | (_("%s defined in removed toc entry"), | |
26c61ae5 L |
7382 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
7383 | NULL)); | |
c5614fa4 AM |
7384 | sym->st_value = 0; |
7385 | sym->st_shndx = SHN_ABS; | |
7386 | } | |
7387 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7388 | } | |
7389 | } | |
7390 | ||
7391 | /* Finally, adjust any global syms defined in the toc. */ | |
7392 | if (toc_inf.global_toc_syms) | |
7393 | { | |
7394 | toc_inf.toc = toc; | |
7395 | toc_inf.skip = skip; | |
7396 | toc_inf.global_toc_syms = FALSE; | |
7397 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
7398 | &toc_inf); | |
7399 | } | |
7400 | } | |
7401 | ||
7402 | if (local_syms != NULL | |
7403 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
7404 | { | |
7405 | if (!info->keep_memory) | |
7406 | free (local_syms); | |
7407 | else | |
7408 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7409 | } | |
7410 | free (skip); | |
7411 | } | |
7412 | ||
7413 | return TRUE; | |
7414 | } | |
7415 | ||
65f38f15 AM |
7416 | /* Allocate space in .plt, .got and associated reloc sections for |
7417 | dynamic relocs. */ | |
5bd4f169 | 7418 | |
b34976b6 | 7419 | static bfd_boolean |
4ce794b7 | 7420 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 7421 | { |
65f38f15 AM |
7422 | struct bfd_link_info *info; |
7423 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 7424 | asection *s; |
65f38f15 AM |
7425 | struct ppc_link_hash_entry *eh; |
7426 | struct ppc_dyn_relocs *p; | |
411e1bfb | 7427 | struct got_entry *gent; |
5bd4f169 | 7428 | |
e92d460e | 7429 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 7430 | return TRUE; |
5bd4f169 | 7431 | |
e92d460e AM |
7432 | if (h->root.type == bfd_link_hash_warning) |
7433 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7434 | ||
65f38f15 AM |
7435 | info = (struct bfd_link_info *) inf; |
7436 | htab = ppc_hash_table (info); | |
5bd4f169 | 7437 | |
65f38f15 | 7438 | if (htab->elf.dynamic_sections_created |
411e1bfb | 7439 | && h->dynindx != -1 |
9c7a29a3 | 7440 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 7441 | { |
411e1bfb AM |
7442 | struct plt_entry *pent; |
7443 | bfd_boolean doneone = FALSE; | |
7444 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
7445 | if (pent->plt.refcount > 0) | |
7446 | { | |
411e1bfb AM |
7447 | /* If this is the first .plt entry, make room for the special |
7448 | first entry. */ | |
4ce794b7 | 7449 | s = htab->plt; |
eea6121a AM |
7450 | if (s->size == 0) |
7451 | s->size += PLT_INITIAL_ENTRY_SIZE; | |
411e1bfb | 7452 | |
eea6121a | 7453 | pent->plt.offset = s->size; |
411e1bfb AM |
7454 | |
7455 | /* Make room for this entry. */ | |
eea6121a | 7456 | s->size += PLT_ENTRY_SIZE; |
411e1bfb AM |
7457 | |
7458 | /* Make room for the .glink code. */ | |
4ce794b7 | 7459 | s = htab->glink; |
eea6121a AM |
7460 | if (s->size == 0) |
7461 | s->size += GLINK_CALL_STUB_SIZE; | |
411e1bfb | 7462 | /* We need bigger stubs past index 32767. */ |
eea6121a AM |
7463 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) |
7464 | s->size += 4; | |
7465 | s->size += 2*4; | |
411e1bfb AM |
7466 | |
7467 | /* We also need to make an entry in the .rela.plt section. */ | |
4ce794b7 | 7468 | s = htab->relplt; |
eea6121a | 7469 | s->size += sizeof (Elf64_External_Rela); |
411e1bfb AM |
7470 | doneone = TRUE; |
7471 | } | |
7472 | else | |
7473 | pent->plt.offset = (bfd_vma) -1; | |
7474 | if (!doneone) | |
65f38f15 | 7475 | { |
411e1bfb | 7476 | h->plt.plist = NULL; |
f5385ebf | 7477 | h->needs_plt = 0; |
65f38f15 AM |
7478 | } |
7479 | } | |
7480 | else | |
7481 | { | |
411e1bfb | 7482 | h->plt.plist = NULL; |
f5385ebf | 7483 | h->needs_plt = 0; |
65f38f15 AM |
7484 | } |
7485 | ||
951fd09b AM |
7486 | eh = (struct ppc_link_hash_entry *) h; |
7487 | /* Run through the TLS GD got entries first if we're changing them | |
7488 | to TPREL. */ | |
e7b938ca | 7489 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
7490 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
7491 | if (gent->got.refcount > 0 | |
7492 | && (gent->tls_type & TLS_GD) != 0) | |
7493 | { | |
7494 | /* This was a GD entry that has been converted to TPREL. If | |
7495 | there happens to be a TPREL entry we can use that one. */ | |
7496 | struct got_entry *ent; | |
7497 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
7498 | if (ent->got.refcount > 0 | |
7499 | && (ent->tls_type & TLS_TPREL) != 0 | |
e717da7e AM |
7500 | && ent->addend == gent->addend |
7501 | && ent->owner == gent->owner) | |
951fd09b AM |
7502 | { |
7503 | gent->got.refcount = 0; | |
7504 | break; | |
7505 | } | |
7506 | ||
7507 | /* If not, then we'll be using our own TPREL entry. */ | |
7508 | if (gent->got.refcount != 0) | |
7509 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
7510 | } | |
7511 | ||
411e1bfb AM |
7512 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
7513 | if (gent->got.refcount > 0) | |
7514 | { | |
951fd09b AM |
7515 | bfd_boolean dyn; |
7516 | ||
411e1bfb | 7517 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
7518 | Undefined weak syms won't yet be marked as dynamic, |
7519 | nor will all TLS symbols. */ | |
411e1bfb | 7520 | if (h->dynindx == -1 |
f5385ebf | 7521 | && !h->forced_local) |
411e1bfb | 7522 | { |
c152c796 | 7523 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
411e1bfb AM |
7524 | return FALSE; |
7525 | } | |
65f38f15 | 7526 | |
d881513a | 7527 | if ((gent->tls_type & TLS_LD) != 0 |
f5385ebf | 7528 | && !h->def_dynamic) |
411e1bfb | 7529 | { |
e717da7e | 7530 | gent->got.offset = ppc64_tlsld_got (gent->owner)->offset; |
951fd09b | 7531 | continue; |
411e1bfb | 7532 | } |
951fd09b | 7533 | |
e717da7e | 7534 | s = ppc64_elf_tdata (gent->owner)->got; |
eea6121a AM |
7535 | gent->got.offset = s->size; |
7536 | s->size | |
d881513a | 7537 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; |
951fd09b | 7538 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
7539 | if ((info->shared |
7540 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
7541 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7542 | || h->root.type != bfd_link_hash_undefweak)) | |
eea6121a | 7543 | ppc64_elf_tdata (gent->owner)->relgot->size |
e7b938ca | 7544 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
7545 | ? 2 * sizeof (Elf64_External_Rela) |
7546 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
7547 | } |
7548 | else | |
7549 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 7550 | |
65f38f15 | 7551 | if (eh->dyn_relocs == NULL) |
b34976b6 | 7552 | return TRUE; |
65f38f15 AM |
7553 | |
7554 | /* In the shared -Bsymbolic case, discard space allocated for | |
7555 | dynamic pc-relative relocs against symbols which turn out to be | |
7556 | defined in regular objects. For the normal shared case, discard | |
7557 | space for relocs that have become local due to symbol visibility | |
7558 | changes. */ | |
7559 | ||
7560 | if (info->shared) | |
7561 | { | |
9c7a29a3 AM |
7562 | /* Relocs that use pc_count are those that appear on a call insn, |
7563 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
7564 | generated via assembly. We want calls to protected symbols to | |
7565 | resolve directly to the function rather than going via the plt. | |
7566 | If people want function pointer comparisons to work as expected | |
7567 | then they should avoid writing weird assembly. */ | |
09695f56 | 7568 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
7569 | { |
7570 | struct ppc_dyn_relocs **pp; | |
7571 | ||
7572 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 7573 | { |
65f38f15 AM |
7574 | p->count -= p->pc_count; |
7575 | p->pc_count = 0; | |
7576 | if (p->count == 0) | |
7577 | *pp = p->next; | |
7578 | else | |
7579 | pp = &p->next; | |
5bd4f169 | 7580 | } |
65f38f15 | 7581 | } |
4e795f50 AM |
7582 | |
7583 | /* Also discard relocs on undefined weak syms with non-default | |
7584 | visibility. */ | |
cab87ef9 AM |
7585 | if (eh->dyn_relocs != NULL |
7586 | && h->root.type == bfd_link_hash_undefweak) | |
dfbb6ac9 AM |
7587 | { |
7588 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
7589 | eh->dyn_relocs = NULL; | |
7590 | ||
7591 | /* Make sure this symbol is output as a dynamic symbol. | |
7592 | Undefined weak syms won't yet be marked as dynamic. */ | |
7593 | else if (h->dynindx == -1 | |
7594 | && !h->forced_local) | |
7595 | { | |
7596 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
7597 | return FALSE; | |
7598 | } | |
7599 | } | |
65f38f15 | 7600 | } |
f4656909 | 7601 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
7602 | { |
7603 | /* For the non-shared case, discard space for relocs against | |
7604 | symbols which turn out to need copy relocs or are not | |
7605 | dynamic. */ | |
7606 | ||
f5385ebf AM |
7607 | if (!h->non_got_ref |
7608 | && h->def_dynamic | |
7609 | && !h->def_regular) | |
65f38f15 AM |
7610 | { |
7611 | /* Make sure this symbol is output as a dynamic symbol. | |
7612 | Undefined weak syms won't yet be marked as dynamic. */ | |
7613 | if (h->dynindx == -1 | |
f5385ebf | 7614 | && !h->forced_local) |
65f38f15 | 7615 | { |
c152c796 | 7616 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 7617 | return FALSE; |
65f38f15 AM |
7618 | } |
7619 | ||
7620 | /* If that succeeded, we know we'll be keeping all the | |
7621 | relocs. */ | |
7622 | if (h->dynindx != -1) | |
7623 | goto keep; | |
7624 | } | |
7625 | ||
7626 | eh->dyn_relocs = NULL; | |
7627 | ||
ec338859 | 7628 | keep: ; |
65f38f15 AM |
7629 | } |
7630 | ||
7631 | /* Finally, allocate space. */ | |
7632 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
7633 | { | |
7634 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 7635 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
65f38f15 AM |
7636 | } |
7637 | ||
b34976b6 | 7638 | return TRUE; |
65f38f15 AM |
7639 | } |
7640 | ||
7641 | /* Find any dynamic relocs that apply to read-only sections. */ | |
7642 | ||
b34976b6 | 7643 | static bfd_boolean |
4ce794b7 | 7644 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
65f38f15 AM |
7645 | { |
7646 | struct ppc_link_hash_entry *eh; | |
7647 | struct ppc_dyn_relocs *p; | |
7648 | ||
e92d460e AM |
7649 | if (h->root.type == bfd_link_hash_warning) |
7650 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7651 | ||
65f38f15 AM |
7652 | eh = (struct ppc_link_hash_entry *) h; |
7653 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
7654 | { | |
7655 | asection *s = p->sec->output_section; | |
7656 | ||
7657 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
7658 | { | |
4ce794b7 | 7659 | struct bfd_link_info *info = inf; |
65f38f15 AM |
7660 | |
7661 | info->flags |= DF_TEXTREL; | |
7662 | ||
7663 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 7664 | return FALSE; |
65f38f15 AM |
7665 | } |
7666 | } | |
b34976b6 | 7667 | return TRUE; |
65f38f15 AM |
7668 | } |
7669 | ||
7670 | /* Set the sizes of the dynamic sections. */ | |
7671 | ||
b34976b6 | 7672 | static bfd_boolean |
4ce794b7 AM |
7673 | ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
7674 | struct bfd_link_info *info) | |
65f38f15 AM |
7675 | { |
7676 | struct ppc_link_hash_table *htab; | |
7677 | bfd *dynobj; | |
7678 | asection *s; | |
b34976b6 | 7679 | bfd_boolean relocs; |
65f38f15 AM |
7680 | bfd *ibfd; |
7681 | ||
7682 | htab = ppc_hash_table (info); | |
7683 | dynobj = htab->elf.dynobj; | |
7684 | if (dynobj == NULL) | |
7685 | abort (); | |
7686 | ||
7687 | if (htab->elf.dynamic_sections_created) | |
7688 | { | |
7689 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 7690 | if (info->executable) |
65f38f15 AM |
7691 | { |
7692 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
7693 | if (s == NULL) | |
7694 | abort (); | |
eea6121a | 7695 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
65f38f15 AM |
7696 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
7697 | } | |
7698 | } | |
7699 | ||
7700 | /* Set up .got offsets for local syms, and space for local dynamic | |
7701 | relocs. */ | |
7702 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
7703 | { | |
411e1bfb AM |
7704 | struct got_entry **lgot_ents; |
7705 | struct got_entry **end_lgot_ents; | |
e7b938ca | 7706 | char *lgot_masks; |
65f38f15 AM |
7707 | bfd_size_type locsymcount; |
7708 | Elf_Internal_Shdr *symtab_hdr; | |
7709 | asection *srel; | |
7710 | ||
ee75fd95 | 7711 | if (!is_ppc64_elf_target (ibfd->xvec)) |
65f38f15 AM |
7712 | continue; |
7713 | ||
e717da7e AM |
7714 | if (ppc64_tlsld_got (ibfd)->refcount > 0) |
7715 | { | |
7716 | s = ppc64_elf_tdata (ibfd)->got; | |
eea6121a AM |
7717 | ppc64_tlsld_got (ibfd)->offset = s->size; |
7718 | s->size += 16; | |
e717da7e AM |
7719 | if (info->shared) |
7720 | { | |
7721 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
eea6121a | 7722 | srel->size += sizeof (Elf64_External_Rela); |
e717da7e AM |
7723 | } |
7724 | } | |
7725 | else | |
7726 | ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1; | |
7727 | ||
65f38f15 AM |
7728 | for (s = ibfd->sections; s != NULL; s = s->next) |
7729 | { | |
ec338859 | 7730 | struct ppc_dyn_relocs *p; |
65f38f15 | 7731 | |
6edfbbad | 7732 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
65f38f15 | 7733 | { |
ec338859 AM |
7734 | if (!bfd_is_abs_section (p->sec) |
7735 | && bfd_is_abs_section (p->sec->output_section)) | |
7736 | { | |
7737 | /* Input section has been discarded, either because | |
7738 | it is a copy of a linkonce section or due to | |
7739 | linker script /DISCARD/, so we'll be discarding | |
7740 | the relocs too. */ | |
7741 | } | |
248866a8 | 7742 | else if (p->count != 0) |
ec338859 AM |
7743 | { |
7744 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 7745 | srel->size += p->count * sizeof (Elf64_External_Rela); |
248866a8 AM |
7746 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
7747 | info->flags |= DF_TEXTREL; | |
ec338859 | 7748 | } |
65f38f15 AM |
7749 | } |
7750 | } | |
7751 | ||
411e1bfb AM |
7752 | lgot_ents = elf_local_got_ents (ibfd); |
7753 | if (!lgot_ents) | |
65f38f15 AM |
7754 | continue; |
7755 | ||
7756 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
7757 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 7758 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 7759 | lgot_masks = (char *) end_lgot_ents; |
e717da7e AM |
7760 | s = ppc64_elf_tdata (ibfd)->got; |
7761 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
e7b938ca | 7762 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 7763 | { |
411e1bfb AM |
7764 | struct got_entry *ent; |
7765 | ||
7766 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
7767 | if (ent->got.refcount > 0) | |
7768 | { | |
e7b938ca | 7769 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb | 7770 | { |
e717da7e | 7771 | if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1) |
411e1bfb | 7772 | { |
eea6121a AM |
7773 | ppc64_tlsld_got (ibfd)->offset = s->size; |
7774 | s->size += 16; | |
411e1bfb | 7775 | if (info->shared) |
eea6121a | 7776 | srel->size += sizeof (Elf64_External_Rela); |
411e1bfb | 7777 | } |
e717da7e | 7778 | ent->got.offset = ppc64_tlsld_got (ibfd)->offset; |
411e1bfb AM |
7779 | } |
7780 | else | |
7781 | { | |
eea6121a | 7782 | ent->got.offset = s->size; |
e7b938ca | 7783 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb | 7784 | { |
eea6121a | 7785 | s->size += 16; |
411e1bfb | 7786 | if (info->shared) |
eea6121a | 7787 | srel->size += 2 * sizeof (Elf64_External_Rela); |
411e1bfb AM |
7788 | } |
7789 | else | |
7790 | { | |
eea6121a | 7791 | s->size += 8; |
411e1bfb | 7792 | if (info->shared) |
eea6121a | 7793 | srel->size += sizeof (Elf64_External_Rela); |
411e1bfb AM |
7794 | } |
7795 | } | |
7796 | } | |
7797 | else | |
7798 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
7799 | } |
7800 | } | |
7801 | ||
7802 | /* Allocate global sym .plt and .got entries, and space for global | |
7803 | sym dynamic relocs. */ | |
4ce794b7 | 7804 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
65f38f15 AM |
7805 | |
7806 | /* We now have determined the sizes of the various dynamic sections. | |
7807 | Allocate memory for them. */ | |
b34976b6 | 7808 | relocs = FALSE; |
65f38f15 AM |
7809 | for (s = dynobj->sections; s != NULL; s = s->next) |
7810 | { | |
7811 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
7812 | continue; | |
7813 | ||
4ce794b7 | 7814 | if (s == htab->brlt || s == htab->relbrlt) |
721956f4 AM |
7815 | /* These haven't been allocated yet; don't strip. */ |
7816 | continue; | |
e717da7e AM |
7817 | else if (s == htab->got |
7818 | || s == htab->plt | |
c456f082 AM |
7819 | || s == htab->glink |
7820 | || s == htab->dynbss) | |
65f38f15 AM |
7821 | { |
7822 | /* Strip this section if we don't need it; see the | |
7823 | comment below. */ | |
5bd4f169 | 7824 | } |
65f38f15 | 7825 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 | 7826 | { |
c456f082 | 7827 | if (s->size != 0) |
5bd4f169 | 7828 | { |
4ce794b7 | 7829 | if (s != htab->relplt) |
b34976b6 | 7830 | relocs = TRUE; |
5bd4f169 AM |
7831 | |
7832 | /* We use the reloc_count field as a counter if we need | |
7833 | to copy relocs into the output file. */ | |
7834 | s->reloc_count = 0; | |
7835 | } | |
7836 | } | |
65f38f15 | 7837 | else |
5bd4f169 AM |
7838 | { |
7839 | /* It's not one of our sections, so don't allocate space. */ | |
7840 | continue; | |
7841 | } | |
7842 | ||
eea6121a | 7843 | if (s->size == 0) |
5bd4f169 | 7844 | { |
c456f082 AM |
7845 | /* If we don't need this section, strip it from the |
7846 | output file. This is mostly to handle .rela.bss and | |
7847 | .rela.plt. We must create both sections in | |
7848 | create_dynamic_sections, because they must be created | |
7849 | before the linker maps input sections to output | |
7850 | sections. The linker does that before | |
7851 | adjust_dynamic_symbol is called, and it is that | |
7852 | function which decides whether anything needs to go | |
7853 | into these sections. */ | |
8423293d | 7854 | s->flags |= SEC_EXCLUDE; |
5bd4f169 AM |
7855 | continue; |
7856 | } | |
7857 | ||
c456f082 | 7858 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
5f333394 AM |
7859 | continue; |
7860 | ||
65f38f15 AM |
7861 | /* Allocate memory for the section contents. We use bfd_zalloc |
7862 | here in case unused entries are not reclaimed before the | |
7863 | section's contents are written out. This should not happen, | |
411e1bfb AM |
7864 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
7865 | sections instead of garbage. | |
7866 | We also rely on the section contents being zero when writing | |
7867 | the GOT. */ | |
eea6121a | 7868 | s->contents = bfd_zalloc (dynobj, s->size); |
65f38f15 | 7869 | if (s->contents == NULL) |
b34976b6 | 7870 | return FALSE; |
5bd4f169 AM |
7871 | } |
7872 | ||
e717da7e AM |
7873 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
7874 | { | |
ee75fd95 | 7875 | if (!is_ppc64_elf_target (ibfd->xvec)) |
7b53ace3 AM |
7876 | continue; |
7877 | ||
e717da7e AM |
7878 | s = ppc64_elf_tdata (ibfd)->got; |
7879 | if (s != NULL && s != htab->got) | |
7880 | { | |
eea6121a | 7881 | if (s->size == 0) |
8423293d | 7882 | s->flags |= SEC_EXCLUDE; |
e717da7e AM |
7883 | else |
7884 | { | |
eea6121a | 7885 | s->contents = bfd_zalloc (ibfd, s->size); |
e717da7e AM |
7886 | if (s->contents == NULL) |
7887 | return FALSE; | |
7888 | } | |
7889 | } | |
7890 | s = ppc64_elf_tdata (ibfd)->relgot; | |
7891 | if (s != NULL) | |
7892 | { | |
eea6121a | 7893 | if (s->size == 0) |
8423293d | 7894 | s->flags |= SEC_EXCLUDE; |
e717da7e AM |
7895 | else |
7896 | { | |
eea6121a | 7897 | s->contents = bfd_zalloc (ibfd, s->size); |
e717da7e AM |
7898 | if (s->contents == NULL) |
7899 | return FALSE; | |
7900 | relocs = TRUE; | |
7901 | s->reloc_count = 0; | |
7902 | } | |
7903 | } | |
7904 | } | |
7905 | ||
e86ce104 | 7906 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
7907 | { |
7908 | /* Add some entries to the .dynamic section. We fill in the | |
7909 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
7910 | must add the entries now so that we get the correct size for | |
7911 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
7912 | dynamic linker and used by the debugger. */ | |
dc810e39 | 7913 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 7914 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 7915 | |
36af4a4e | 7916 | if (info->executable) |
5bd4f169 | 7917 | { |
dc810e39 | 7918 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 7919 | return FALSE; |
5bd4f169 AM |
7920 | } |
7921 | ||
eea6121a | 7922 | if (htab->plt != NULL && htab->plt->size != 0) |
5bd4f169 | 7923 | { |
dc810e39 AM |
7924 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
7925 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
7926 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
7927 | || !add_dynamic_entry (DT_JMPREL, 0) |
7928 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 7929 | return FALSE; |
5bd4f169 AM |
7930 | } |
7931 | ||
19397422 AM |
7932 | if (NO_OPD_RELOCS) |
7933 | { | |
7934 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
7935 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 7936 | return FALSE; |
19397422 AM |
7937 | } |
7938 | ||
5bd4f169 AM |
7939 | if (relocs) |
7940 | { | |
dc810e39 AM |
7941 | if (!add_dynamic_entry (DT_RELA, 0) |
7942 | || !add_dynamic_entry (DT_RELASZ, 0) | |
7943 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 7944 | return FALSE; |
5bd4f169 | 7945 | |
65f38f15 AM |
7946 | /* If any dynamic relocs apply to a read-only section, |
7947 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 7948 | if ((info->flags & DF_TEXTREL) == 0) |
4ce794b7 | 7949 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
5bd4f169 | 7950 | |
65f38f15 | 7951 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 7952 | { |
65f38f15 | 7953 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 7954 | return FALSE; |
5bd4f169 | 7955 | } |
5bd4f169 | 7956 | } |
5bd4f169 | 7957 | } |
65f38f15 | 7958 | #undef add_dynamic_entry |
5bd4f169 | 7959 | |
b34976b6 | 7960 | return TRUE; |
5bd4f169 AM |
7961 | } |
7962 | ||
721956f4 | 7963 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 7964 | |
4ce794b7 AM |
7965 | static inline enum ppc_stub_type |
7966 | ppc_type_of_stub (asection *input_sec, | |
7967 | const Elf_Internal_Rela *rel, | |
7968 | struct ppc_link_hash_entry **hash, | |
7969 | bfd_vma destination) | |
5bd4f169 | 7970 | { |
721956f4 AM |
7971 | struct ppc_link_hash_entry *h = *hash; |
7972 | bfd_vma location; | |
7973 | bfd_vma branch_offset; | |
7974 | bfd_vma max_branch_offset; | |
4ce794b7 | 7975 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 | 7976 | |
721956f4 AM |
7977 | if (h != NULL) |
7978 | { | |
7fe2b9a6 AM |
7979 | struct ppc_link_hash_entry *fdh = h; |
7980 | if (fdh->oh != NULL | |
7981 | && fdh->oh->is_func_descriptor) | |
7982 | fdh = fdh->oh; | |
8387904d | 7983 | |
7fe2b9a6 | 7984 | if (fdh->elf.dynindx != -1) |
5bd4f169 | 7985 | { |
411e1bfb | 7986 | struct plt_entry *ent; |
8387904d | 7987 | |
7fe2b9a6 | 7988 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
7989 | if (ent->addend == rel->r_addend |
7990 | && ent->plt.offset != (bfd_vma) -1) | |
7991 | { | |
7fe2b9a6 | 7992 | *hash = fdh; |
411e1bfb AM |
7993 | return ppc_stub_plt_call; |
7994 | } | |
5bd4f169 AM |
7995 | } |
7996 | ||
7fe2b9a6 AM |
7997 | /* Here, we know we don't have a plt entry. If we don't have a |
7998 | either a defined function descriptor or a defined entry symbol | |
7999 | in a regular object file, then it is pointless trying to make | |
8000 | any other type of stub. */ | |
8001 | if (!((fdh->elf.root.type == bfd_link_hash_defined | |
8002 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
8003 | && fdh->elf.root.u.def.section->output_section != NULL) | |
8004 | && !((h->elf.root.type == bfd_link_hash_defined | |
8005 | || h->elf.root.type == bfd_link_hash_defweak) | |
8006 | && h->elf.root.u.def.section->output_section != NULL)) | |
721956f4 | 8007 | return ppc_stub_none; |
5d1634d7 | 8008 | } |
5d1634d7 | 8009 | |
721956f4 AM |
8010 | /* Determine where the call point is. */ |
8011 | location = (input_sec->output_offset | |
8012 | + input_sec->output_section->vma | |
8013 | + rel->r_offset); | |
5d1634d7 | 8014 | |
721956f4 AM |
8015 | branch_offset = destination - location; |
8016 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 8017 | |
721956f4 AM |
8018 | /* Determine if a long branch stub is needed. */ |
8019 | max_branch_offset = 1 << 25; | |
4ce794b7 | 8020 | if (r_type != R_PPC64_REL24) |
721956f4 | 8021 | max_branch_offset = 1 << 15; |
5d1634d7 | 8022 | |
721956f4 AM |
8023 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
8024 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
8025 | is needed later. */ | |
8026 | return ppc_stub_long_branch; | |
5d1634d7 | 8027 | |
721956f4 | 8028 | return ppc_stub_none; |
5d1634d7 AM |
8029 | } |
8030 | ||
8031 | /* Build a .plt call stub. */ | |
8032 | ||
4ce794b7 AM |
8033 | static inline bfd_byte * |
8034 | build_plt_stub (bfd *obfd, bfd_byte *p, int offset) | |
5d1634d7 AM |
8035 | { |
8036 | #define PPC_LO(v) ((v) & 0xffff) | |
8037 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
8038 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
8039 | ||
5d1634d7 | 8040 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 8041 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
8042 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
8043 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 8044 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
8045 | offset += 8; |
8046 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
8047 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 8048 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
8049 | offset += 8; |
8050 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
8051 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
8052 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
8053 | return p; | |
8054 | } | |
8055 | ||
b34976b6 | 8056 | static bfd_boolean |
4ce794b7 | 8057 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
5d1634d7 | 8058 | { |
721956f4 AM |
8059 | struct ppc_stub_hash_entry *stub_entry; |
8060 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
8061 | struct bfd_link_info *info; |
8062 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
8063 | bfd_byte *loc; |
8064 | bfd_byte *p; | |
8065 | unsigned int indx; | |
411e1bfb | 8066 | struct plt_entry *ent; |
ee75fd95 | 8067 | bfd_vma dest, off; |
721956f4 | 8068 | int size; |
5d1634d7 | 8069 | |
721956f4 AM |
8070 | /* Massage our args to the form they really have. */ |
8071 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 8072 | info = in_arg; |
5d1634d7 | 8073 | |
5d1634d7 AM |
8074 | htab = ppc_hash_table (info); |
8075 | ||
721956f4 | 8076 | /* Make a note of the offset within the stubs for this entry. */ |
eea6121a | 8077 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
97b639ba | 8078 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
721956f4 | 8079 | |
4ce794b7 | 8080 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
721956f4 | 8081 | switch (stub_entry->stub_type) |
5d1634d7 | 8082 | { |
721956f4 | 8083 | case ppc_stub_long_branch: |
ad8e1ba5 | 8084 | case ppc_stub_long_branch_r2off: |
721956f4 | 8085 | /* Branches are relative. This is where we are going to. */ |
ee75fd95 AM |
8086 | off = dest = (stub_entry->target_value |
8087 | + stub_entry->target_section->output_offset | |
8088 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 8089 | |
721956f4 AM |
8090 | /* And this is where we are coming from. */ |
8091 | off -= (stub_entry->stub_offset | |
97b639ba AM |
8092 | + stub_entry->stub_sec->output_offset |
8093 | + stub_entry->stub_sec->output_section->vma); | |
e86ce104 | 8094 | |
ad8e1ba5 AM |
8095 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
8096 | size = 4; | |
8097 | else | |
8098 | { | |
8099 | bfd_vma r2off; | |
8100 | ||
8101 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
8102 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 8103 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 8104 | loc += 4; |
97b639ba | 8105 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 8106 | loc += 4; |
97b639ba | 8107 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
8108 | loc += 4; |
8109 | off -= 12; | |
8110 | size = 16; | |
8111 | } | |
97b639ba | 8112 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 | 8113 | |
5c3dead3 AM |
8114 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
8115 | { | |
8116 | (*_bfd_error_handler) (_("long branch stub `%s' offset overflow"), | |
8117 | stub_entry->root.string); | |
8118 | htab->stub_error = TRUE; | |
8119 | return FALSE; | |
8120 | } | |
ee75fd95 AM |
8121 | |
8122 | if (info->emitrelocations) | |
8123 | { | |
8124 | Elf_Internal_Rela *relocs, *r; | |
8125 | struct bfd_elf_section_data *elfsec_data; | |
8126 | ||
8127 | elfsec_data = elf_section_data (stub_entry->stub_sec); | |
8128 | relocs = elfsec_data->relocs; | |
8129 | if (relocs == NULL) | |
8130 | { | |
8131 | bfd_size_type relsize; | |
8132 | relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs); | |
8133 | relocs = bfd_alloc (htab->stub_bfd, relsize); | |
8134 | if (relocs == NULL) | |
8135 | return FALSE; | |
8136 | elfsec_data->relocs = relocs; | |
8137 | elfsec_data->rel_hdr.sh_size = relsize; | |
8138 | elfsec_data->rel_hdr.sh_entsize = 24; | |
8139 | stub_entry->stub_sec->reloc_count = 0; | |
8140 | } | |
8141 | r = relocs + stub_entry->stub_sec->reloc_count; | |
8142 | stub_entry->stub_sec->reloc_count += 1; | |
8143 | r->r_offset = loc - stub_entry->stub_sec->contents; | |
8144 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
8145 | r->r_addend = dest; | |
8146 | if (stub_entry->h != NULL) | |
8147 | { | |
8148 | struct elf_link_hash_entry **hashes; | |
8149 | unsigned long symndx; | |
8150 | struct ppc_link_hash_entry *h; | |
8151 | ||
8152 | hashes = elf_sym_hashes (htab->stub_bfd); | |
8153 | if (hashes == NULL) | |
8154 | { | |
8155 | bfd_size_type hsize; | |
8156 | ||
8157 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
8158 | hashes = bfd_zalloc (htab->stub_bfd, hsize); | |
8159 | if (hashes == NULL) | |
8160 | return FALSE; | |
8161 | elf_sym_hashes (htab->stub_bfd) = hashes; | |
8162 | htab->stub_globals = 1; | |
8163 | } | |
8164 | symndx = htab->stub_globals++; | |
8165 | h = stub_entry->h; | |
8166 | hashes[symndx] = &h->elf; | |
8167 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
8168 | if (h->oh != NULL && h->oh->is_func) | |
8169 | h = h->oh; | |
8170 | if (h->elf.root.u.def.section != stub_entry->target_section) | |
8171 | /* H is an opd symbol. The addend must be zero. */ | |
8172 | r->r_addend = 0; | |
8173 | else | |
8174 | { | |
8175 | off = (h->elf.root.u.def.value | |
8176 | + h->elf.root.u.def.section->output_offset | |
8177 | + h->elf.root.u.def.section->output_section->vma); | |
8178 | r->r_addend -= off; | |
8179 | } | |
8180 | } | |
8181 | } | |
721956f4 | 8182 | break; |
e86ce104 | 8183 | |
721956f4 | 8184 | case ppc_stub_plt_branch: |
ad8e1ba5 | 8185 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
8186 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
8187 | stub_entry->root.string + 9, | |
b34976b6 | 8188 | FALSE, FALSE); |
721956f4 AM |
8189 | if (br_entry == NULL) |
8190 | { | |
8191 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
5c3dead3 | 8192 | stub_entry->root.string); |
b34976b6 AM |
8193 | htab->stub_error = TRUE; |
8194 | return FALSE; | |
721956f4 AM |
8195 | } |
8196 | ||
8197 | off = (stub_entry->target_value | |
8198 | + stub_entry->target_section->output_offset | |
8199 | + stub_entry->target_section->output_section->vma); | |
8200 | ||
4ce794b7 AM |
8201 | bfd_put_64 (htab->brlt->owner, off, |
8202 | htab->brlt->contents + br_entry->offset); | |
721956f4 | 8203 | |
ee75fd95 | 8204 | if (htab->relbrlt != NULL) |
721956f4 AM |
8205 | { |
8206 | /* Create a reloc for the branch lookup table entry. */ | |
8207 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 8208 | bfd_byte *rl; |
5d1634d7 | 8209 | |
721956f4 | 8210 | rela.r_offset = (br_entry->offset |
4ce794b7 AM |
8211 | + htab->brlt->output_offset |
8212 | + htab->brlt->output_section->vma); | |
721956f4 AM |
8213 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
8214 | rela.r_addend = off; | |
8215 | ||
4ce794b7 AM |
8216 | rl = htab->relbrlt->contents; |
8217 | rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
8218 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
721956f4 AM |
8219 | } |
8220 | ||
8221 | off = (br_entry->offset | |
4ce794b7 AM |
8222 | + htab->brlt->output_offset |
8223 | + htab->brlt->output_section->vma | |
8224 | - elf_gp (htab->brlt->output_section->owner) | |
ad8e1ba5 | 8225 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 8226 | |
ad8e1ba5 | 8227 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
8228 | { |
8229 | (*_bfd_error_handler) | |
e86ce104 | 8230 | (_("linkage table error against `%s'"), |
721956f4 | 8231 | stub_entry->root.string); |
5d1634d7 | 8232 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
8233 | htab->stub_error = TRUE; |
8234 | return FALSE; | |
5d1634d7 | 8235 | } |
41bd81ab | 8236 | |
721956f4 | 8237 | indx = off; |
ad8e1ba5 AM |
8238 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
8239 | { | |
97b639ba | 8240 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 8241 | loc += 4; |
97b639ba | 8242 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 AM |
8243 | size = 16; |
8244 | } | |
8245 | else | |
8246 | { | |
8247 | bfd_vma r2off; | |
8248 | ||
8249 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
8250 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 8251 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 8252 | loc += 4; |
97b639ba | 8253 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 8254 | loc += 4; |
97b639ba | 8255 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 | 8256 | loc += 4; |
97b639ba | 8257 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 8258 | loc += 4; |
97b639ba | 8259 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
8260 | size = 28; |
8261 | } | |
8262 | loc += 4; | |
97b639ba | 8263 | bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc); |
ad8e1ba5 | 8264 | loc += 4; |
97b639ba | 8265 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
721956f4 | 8266 | break; |
5d1634d7 | 8267 | |
721956f4 | 8268 | case ppc_stub_plt_call: |
c862ae31 AM |
8269 | /* Do the best we can for shared libraries built without |
8270 | exporting ".foo" for each "foo". This can happen when symbol | |
8271 | versioning scripts strip all bar a subset of symbols. */ | |
8387904d AM |
8272 | if (stub_entry->h->oh != NULL |
8273 | && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined | |
34814b9f | 8274 | && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak) |
c862ae31 AM |
8275 | { |
8276 | /* Point the symbol at the stub. There may be multiple stubs, | |
8277 | we don't really care; The main thing is to make this sym | |
8f3bab57 AM |
8278 | defined somewhere. Maybe defining the symbol in the stub |
8279 | section is a silly idea. If we didn't do this, htab->top_id | |
8280 | could disappear. */ | |
34814b9f AM |
8281 | stub_entry->h->oh->elf.root.type = bfd_link_hash_defined; |
8282 | stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec; | |
8283 | stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset; | |
c862ae31 AM |
8284 | } |
8285 | ||
721956f4 | 8286 | /* Now build the stub. */ |
411e1bfb AM |
8287 | off = (bfd_vma) -1; |
8288 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
8289 | if (ent->addend == stub_entry->addend) | |
8290 | { | |
8291 | off = ent->plt.offset; | |
8292 | break; | |
8293 | } | |
721956f4 AM |
8294 | if (off >= (bfd_vma) -2) |
8295 | abort (); | |
8296 | ||
8297 | off &= ~ (bfd_vma) 1; | |
4ce794b7 AM |
8298 | off += (htab->plt->output_offset |
8299 | + htab->plt->output_section->vma | |
8300 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 8301 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 8302 | |
ad8e1ba5 | 8303 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
8304 | { |
8305 | (*_bfd_error_handler) | |
8306 | (_("linkage table error against `%s'"), | |
8307 | stub_entry->h->elf.root.root.string); | |
8308 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
8309 | htab->stub_error = TRUE; |
8310 | return FALSE; | |
721956f4 AM |
8311 | } |
8312 | ||
97b639ba | 8313 | p = build_plt_stub (htab->stub_bfd, loc, off); |
721956f4 AM |
8314 | size = p - loc; |
8315 | break; | |
8316 | ||
8317 | default: | |
8318 | BFD_FAIL (); | |
b34976b6 | 8319 | return FALSE; |
721956f4 AM |
8320 | } |
8321 | ||
eea6121a | 8322 | stub_entry->stub_sec->size += size; |
97b639ba | 8323 | |
ee75fd95 | 8324 | if (htab->emit_stub_syms) |
97b639ba AM |
8325 | { |
8326 | struct elf_link_hash_entry *h; | |
ee75fd95 AM |
8327 | size_t len1, len2; |
8328 | char *name; | |
8329 | const char *const stub_str[] = { "long_branch", | |
8330 | "long_branch_r2off", | |
8331 | "plt_branch", | |
8332 | "plt_branch_r2off", | |
8333 | "plt_call" }; | |
8334 | ||
8335 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
8336 | len2 = strlen (stub_entry->root.string); | |
8337 | name = bfd_malloc (len1 + len2 + 2); | |
8338 | if (name == NULL) | |
8339 | return FALSE; | |
8340 | memcpy (name, stub_entry->root.string, 9); | |
8341 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
8342 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
8343 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
97b639ba AM |
8344 | if (h == NULL) |
8345 | return FALSE; | |
8346 | if (h->root.type == bfd_link_hash_new) | |
8347 | { | |
8348 | h->root.type = bfd_link_hash_defined; | |
8349 | h->root.u.def.section = stub_entry->stub_sec; | |
8350 | h->root.u.def.value = stub_entry->stub_offset; | |
f5385ebf AM |
8351 | h->ref_regular = 1; |
8352 | h->def_regular = 1; | |
8353 | h->ref_regular_nonweak = 1; | |
8354 | h->forced_local = 1; | |
8355 | h->non_elf = 0; | |
97b639ba AM |
8356 | } |
8357 | } | |
8358 | ||
b34976b6 | 8359 | return TRUE; |
721956f4 AM |
8360 | } |
8361 | ||
8362 | /* As above, but don't actually build the stub. Just bump offset so | |
8363 | we know stub section sizes, and select plt_branch stubs where | |
8364 | long_branch stubs won't do. */ | |
8365 | ||
b34976b6 | 8366 | static bfd_boolean |
4ce794b7 | 8367 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
721956f4 AM |
8368 | { |
8369 | struct ppc_stub_hash_entry *stub_entry; | |
63bc6f6c | 8370 | struct bfd_link_info *info; |
721956f4 AM |
8371 | struct ppc_link_hash_table *htab; |
8372 | bfd_vma off; | |
8373 | int size; | |
8374 | ||
8375 | /* Massage our args to the form they really have. */ | |
8376 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
63bc6f6c AM |
8377 | info = in_arg; |
8378 | ||
8379 | htab = ppc_hash_table (info); | |
721956f4 AM |
8380 | |
8381 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
8382 | { | |
411e1bfb | 8383 | struct plt_entry *ent; |
58ac9f71 | 8384 | off = (bfd_vma) -1; |
411e1bfb AM |
8385 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
8386 | if (ent->addend == stub_entry->addend) | |
8387 | { | |
8388 | off = ent->plt.offset & ~(bfd_vma) 1; | |
8389 | break; | |
8390 | } | |
58ac9f71 | 8391 | if (off >= (bfd_vma) -2) |
411e1bfb | 8392 | abort (); |
4ce794b7 AM |
8393 | off += (htab->plt->output_offset |
8394 | + htab->plt->output_section->vma | |
8395 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 8396 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 8397 | |
ad8e1ba5 | 8398 | size = PLT_CALL_STUB_SIZE; |
4ce794b7 | 8399 | if (PPC_HA (off + 16) != PPC_HA (off)) |
721956f4 AM |
8400 | size += 4; |
8401 | } | |
8402 | else | |
8403 | { | |
ad8e1ba5 AM |
8404 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
8405 | variants. */ | |
721956f4 AM |
8406 | off = (stub_entry->target_value |
8407 | + stub_entry->target_section->output_offset | |
8408 | + stub_entry->target_section->output_section->vma); | |
eea6121a | 8409 | off -= (stub_entry->stub_sec->size |
721956f4 AM |
8410 | + stub_entry->stub_sec->output_offset |
8411 | + stub_entry->stub_sec->output_section->vma); | |
8412 | ||
ad8e1ba5 AM |
8413 | /* Reset the stub type from the plt variant in case we now |
8414 | can reach with a shorter stub. */ | |
8415 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
8416 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
8417 | ||
8418 | size = 4; | |
8419 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
8420 | { | |
8421 | off -= 12; | |
8422 | size = 16; | |
8423 | } | |
8424 | ||
8425 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
8426 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
8427 | { | |
8428 | struct ppc_branch_hash_entry *br_entry; | |
8429 | ||
8430 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
8431 | stub_entry->root.string + 9, | |
b34976b6 | 8432 | TRUE, FALSE); |
721956f4 AM |
8433 | if (br_entry == NULL) |
8434 | { | |
8435 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
5c3dead3 | 8436 | stub_entry->root.string); |
b34976b6 AM |
8437 | htab->stub_error = TRUE; |
8438 | return FALSE; | |
721956f4 AM |
8439 | } |
8440 | ||
8441 | if (br_entry->iter != htab->stub_iteration) | |
8442 | { | |
8443 | br_entry->iter = htab->stub_iteration; | |
eea6121a AM |
8444 | br_entry->offset = htab->brlt->size; |
8445 | htab->brlt->size += 8; | |
63bc6f6c | 8446 | |
ee75fd95 | 8447 | if (htab->relbrlt != NULL) |
eea6121a | 8448 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
721956f4 | 8449 | } |
ad8e1ba5 AM |
8450 | |
8451 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 8452 | size = 16; |
ad8e1ba5 AM |
8453 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
8454 | size = 28; | |
721956f4 | 8455 | } |
ee75fd95 AM |
8456 | |
8457 | if (info->emitrelocations | |
8458 | && (stub_entry->stub_type == ppc_stub_long_branch | |
8459 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
8460 | stub_entry->stub_sec->reloc_count += 1; | |
721956f4 AM |
8461 | } |
8462 | ||
eea6121a | 8463 | stub_entry->stub_sec->size += size; |
b34976b6 | 8464 | return TRUE; |
721956f4 AM |
8465 | } |
8466 | ||
8467 | /* Set up various things so that we can make a list of input sections | |
8468 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 8469 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
8470 | |
8471 | int | |
4c52953f AM |
8472 | ppc64_elf_setup_section_lists (bfd *output_bfd, |
8473 | struct bfd_link_info *info, | |
8474 | int no_multi_toc) | |
721956f4 AM |
8475 | { |
8476 | bfd *input_bfd; | |
734b6cf9 | 8477 | int top_id, top_index, id; |
721956f4 | 8478 | asection *section; |
734b6cf9 | 8479 | asection **input_list; |
721956f4 AM |
8480 | bfd_size_type amt; |
8481 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
8482 | ||
4c52953f AM |
8483 | htab->no_multi_toc = no_multi_toc; |
8484 | ||
4ce794b7 | 8485 | if (htab->brlt == NULL) |
721956f4 AM |
8486 | return 0; |
8487 | ||
1e2f5b6e | 8488 | /* Find the top input section id. */ |
3d6f9012 | 8489 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
8490 | input_bfd != NULL; |
8491 | input_bfd = input_bfd->link_next) | |
8492 | { | |
721956f4 AM |
8493 | for (section = input_bfd->sections; |
8494 | section != NULL; | |
8495 | section = section->next) | |
8496 | { | |
8497 | if (top_id < section->id) | |
8498 | top_id = section->id; | |
8499 | } | |
8500 | } | |
721956f4 | 8501 | |
8f3bab57 | 8502 | htab->top_id = top_id; |
721956f4 | 8503 | amt = sizeof (struct map_stub) * (top_id + 1); |
4ce794b7 | 8504 | htab->stub_group = bfd_zmalloc (amt); |
721956f4 AM |
8505 | if (htab->stub_group == NULL) |
8506 | return -1; | |
8507 | ||
3d6f9012 AM |
8508 | /* Set toc_off for com, und, abs and ind sections. */ |
8509 | for (id = 0; id < 3; id++) | |
8510 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 8511 | |
3d6f9012 | 8512 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
8513 | |
8514 | /* We can't use output_bfd->section_count here to find the top output | |
8515 | section index as some sections may have been removed, and | |
8423293d | 8516 | strip_excluded_output_sections doesn't renumber the indices. */ |
734b6cf9 AM |
8517 | for (section = output_bfd->sections, top_index = 0; |
8518 | section != NULL; | |
8519 | section = section->next) | |
8520 | { | |
8521 | if (top_index < section->index) | |
8522 | top_index = section->index; | |
8523 | } | |
8524 | ||
8525 | htab->top_index = top_index; | |
8526 | amt = sizeof (asection *) * (top_index + 1); | |
4ce794b7 | 8527 | input_list = bfd_zmalloc (amt); |
734b6cf9 AM |
8528 | htab->input_list = input_list; |
8529 | if (input_list == NULL) | |
8530 | return -1; | |
8531 | ||
721956f4 AM |
8532 | return 1; |
8533 | } | |
8534 | ||
e717da7e AM |
8535 | /* The linker repeatedly calls this function for each TOC input section |
8536 | and linker generated GOT section. Group input bfds such that the toc | |
8537 | within a group is less than 64k in size. Will break with cute linker | |
8538 | scripts that play games with dot in the output toc section. */ | |
ad8e1ba5 AM |
8539 | |
8540 | void | |
4ce794b7 | 8541 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
ad8e1ba5 AM |
8542 | { |
8543 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
8544 | ||
4c52953f AM |
8545 | if (!htab->no_multi_toc) |
8546 | { | |
8547 | bfd_vma addr = isec->output_offset + isec->output_section->vma; | |
8548 | bfd_vma off = addr - htab->toc_curr; | |
8549 | ||
8550 | if (off + isec->size > 0x10000) | |
8551 | htab->toc_curr = addr; | |
99877b66 | 8552 | |
4c52953f AM |
8553 | elf_gp (isec->owner) = (htab->toc_curr |
8554 | - elf_gp (isec->output_section->owner) | |
8555 | + TOC_BASE_OFF); | |
8556 | } | |
ad8e1ba5 AM |
8557 | } |
8558 | ||
8559 | /* Called after the last call to the above function. */ | |
8560 | ||
8561 | void | |
4c52953f | 8562 | ppc64_elf_reinit_toc (bfd *output_bfd, struct bfd_link_info *info) |
ad8e1ba5 AM |
8563 | { |
8564 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 | 8565 | |
4c52953f AM |
8566 | htab->multi_toc_needed = htab->toc_curr != elf_gp (output_bfd); |
8567 | ||
ad8e1ba5 AM |
8568 | /* toc_curr tracks the TOC offset used for code sections below in |
8569 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 8570 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
8571 | } |
8572 | ||
9b5ecbd0 AM |
8573 | /* No toc references were found in ISEC. If the code in ISEC makes no |
8574 | calls, then there's no need to use toc adjusting stubs when branching | |
8575 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
4c52953f AM |
8576 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
8577 | needed, and 2 if a cyclical call-graph was found but no other reason | |
8578 | for a stub was detected. If called from the top level, a return of | |
8579 | 2 means the same as a return of 0. */ | |
9b5ecbd0 AM |
8580 | |
8581 | static int | |
4ce794b7 | 8582 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
9b5ecbd0 | 8583 | { |
4c52953f AM |
8584 | Elf_Internal_Rela *relstart, *rel; |
8585 | Elf_Internal_Sym *local_syms; | |
9b5ecbd0 | 8586 | int ret; |
4c52953f | 8587 | struct ppc_link_hash_table *htab; |
9b5ecbd0 | 8588 | |
772119ce AM |
8589 | /* We know none of our code bearing sections will need toc stubs. */ |
8590 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
8591 | return 0; | |
8592 | ||
eea6121a | 8593 | if (isec->size == 0) |
082c50f8 AM |
8594 | return 0; |
8595 | ||
4c52953f AM |
8596 | if (isec->output_section == NULL) |
8597 | return 0; | |
8598 | ||
9b5ecbd0 AM |
8599 | /* Hack for linux kernel. .fixup contains branches, but only back to |
8600 | the function that hit an exception. */ | |
4c52953f AM |
8601 | if (strcmp (isec->name, ".fixup") == 0) |
8602 | return 0; | |
9b5ecbd0 | 8603 | |
4c52953f AM |
8604 | if (isec->reloc_count == 0) |
8605 | return 0; | |
8606 | ||
8607 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, | |
8608 | info->keep_memory); | |
8609 | if (relstart == NULL) | |
8610 | return -1; | |
8611 | ||
8612 | /* Look for branches to outside of this section. */ | |
8613 | local_syms = NULL; | |
8614 | ret = 0; | |
8615 | htab = ppc_hash_table (info); | |
8616 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) | |
9b5ecbd0 | 8617 | { |
4c52953f AM |
8618 | enum elf_ppc64_reloc_type r_type; |
8619 | unsigned long r_symndx; | |
8620 | struct elf_link_hash_entry *h; | |
8621 | Elf_Internal_Sym *sym; | |
8622 | asection *sym_sec; | |
8623 | long *opd_adjust; | |
8624 | bfd_vma sym_value; | |
8625 | bfd_vma dest; | |
8626 | ||
8627 | r_type = ELF64_R_TYPE (rel->r_info); | |
8628 | if (r_type != R_PPC64_REL24 | |
8629 | && r_type != R_PPC64_REL14 | |
8630 | && r_type != R_PPC64_REL14_BRTAKEN | |
8631 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
8632 | continue; | |
8633 | ||
8634 | r_symndx = ELF64_R_SYM (rel->r_info); | |
8635 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
8636 | isec->owner)) | |
9b5ecbd0 | 8637 | { |
4c52953f AM |
8638 | ret = -1; |
8639 | break; | |
9b5ecbd0 | 8640 | } |
9b5ecbd0 | 8641 | |
2917689a AM |
8642 | /* Calls to dynamic lib functions go through a plt call stub |
8643 | that uses r2. Branches to undefined symbols might be a call | |
8644 | using old-style dot symbols that can be satisfied by a plt | |
8645 | call into a new-style dynamic library. */ | |
4c52953f | 8646 | if (sym_sec == NULL) |
2917689a AM |
8647 | { |
8648 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
8649 | if (eh != NULL | |
8650 | && eh->oh != NULL | |
8651 | && eh->oh->elf.plt.plist != NULL) | |
8652 | { | |
8653 | ret = 1; | |
8654 | break; | |
8655 | } | |
4c52953f | 8656 | |
2917689a AM |
8657 | /* Ignore other undefined symbols. */ |
8658 | continue; | |
8659 | } | |
8660 | ||
8661 | /* Assume branches to other sections not included in the link need | |
8662 | stubs too, to cover -R and absolute syms. */ | |
4c52953f AM |
8663 | if (sym_sec->output_section == NULL) |
8664 | { | |
8665 | ret = 1; | |
8666 | break; | |
8667 | } | |
8668 | ||
8669 | if (h == NULL) | |
8670 | sym_value = sym->st_value; | |
8671 | else | |
8672 | { | |
8673 | if (h->root.type != bfd_link_hash_defined | |
8674 | && h->root.type != bfd_link_hash_defweak) | |
8675 | abort (); | |
8676 | sym_value = h->root.u.def.value; | |
8677 | } | |
8678 | sym_value += rel->r_addend; | |
8679 | ||
8680 | /* If this branch reloc uses an opd sym, find the code section. */ | |
8681 | opd_adjust = get_opd_info (sym_sec); | |
8682 | if (opd_adjust != NULL) | |
8683 | { | |
4c52953f AM |
8684 | if (h == NULL) |
8685 | { | |
8686 | long adjust; | |
8687 | ||
8688 | adjust = opd_adjust[sym->st_value / 8]; | |
8689 | if (adjust == -1) | |
8690 | /* Assume deleted functions won't ever be called. */ | |
8691 | continue; | |
8692 | sym_value += adjust; | |
8693 | } | |
8694 | ||
8695 | dest = opd_entry_value (sym_sec, sym_value, &sym_sec, NULL); | |
8696 | if (dest == (bfd_vma) -1) | |
8697 | continue; | |
8698 | } | |
8699 | else | |
8700 | dest = (sym_value | |
8701 | + sym_sec->output_offset | |
8702 | + sym_sec->output_section->vma); | |
8703 | ||
8704 | /* Ignore branch to self. */ | |
8705 | if (sym_sec == isec) | |
8706 | continue; | |
8707 | ||
8708 | /* If the called function uses the toc, we need a stub. */ | |
8709 | if (sym_sec->has_toc_reloc | |
8710 | || sym_sec->makes_toc_func_call) | |
8711 | { | |
8712 | ret = 1; | |
8713 | break; | |
8714 | } | |
8715 | ||
8716 | /* Assume any branch that needs a long branch stub might in fact | |
8717 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
8718 | else if (dest - (isec->output_offset | |
8719 | + isec->output_section->vma | |
8720 | + rel->r_offset) + (1 << 25) >= (2 << 25)) | |
9b5ecbd0 AM |
8721 | { |
8722 | ret = 1; | |
8723 | break; | |
8724 | } | |
4c52953f AM |
8725 | |
8726 | /* If calling back to a section in the process of being tested, we | |
8727 | can't say for sure that no toc adjusting stubs are needed, so | |
8728 | don't return zero. */ | |
8729 | else if (sym_sec->call_check_in_progress) | |
8730 | ret = 2; | |
8731 | ||
8732 | /* Branches to another section that itself doesn't have any TOC | |
8733 | references are OK. Recursively call ourselves to check. */ | |
8734 | else if (sym_sec->id <= htab->top_id | |
8735 | && htab->stub_group[sym_sec->id].toc_off == 0) | |
8736 | { | |
8737 | int recur; | |
8738 | ||
8739 | /* Mark current section as indeterminate, so that other | |
8740 | sections that call back to current won't be marked as | |
8741 | known. */ | |
8742 | isec->call_check_in_progress = 1; | |
8743 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
8744 | isec->call_check_in_progress = 0; | |
8745 | ||
8746 | if (recur < 0) | |
8747 | { | |
8748 | /* An error. Exit. */ | |
8749 | ret = -1; | |
8750 | break; | |
8751 | } | |
8752 | else if (recur <= 1) | |
8753 | { | |
8754 | /* Known result. Mark as checked and set section flag. */ | |
8755 | htab->stub_group[sym_sec->id].toc_off = 1; | |
8756 | if (recur != 0) | |
8757 | { | |
8758 | sym_sec->makes_toc_func_call = 1; | |
8759 | ret = 1; | |
8760 | break; | |
8761 | } | |
8762 | } | |
8763 | else | |
8764 | { | |
8765 | /* Unknown result. Continue checking. */ | |
8766 | ret = 2; | |
8767 | } | |
8768 | } | |
9b5ecbd0 AM |
8769 | } |
8770 | ||
4c52953f AM |
8771 | if (local_syms != NULL |
8772 | && (elf_tdata (isec->owner)->symtab_hdr.contents | |
8773 | != (unsigned char *) local_syms)) | |
8774 | free (local_syms); | |
8775 | if (elf_section_data (isec)->relocs != relstart) | |
8776 | free (relstart); | |
8777 | ||
9b5ecbd0 AM |
8778 | return ret; |
8779 | } | |
8780 | ||
721956f4 AM |
8781 | /* The linker repeatedly calls this function for each input section, |
8782 | in the order that input sections are linked into output sections. | |
8783 | Build lists of input sections to determine groupings between which | |
8784 | we may insert linker stubs. */ | |
8785 | ||
9b5ecbd0 | 8786 | bfd_boolean |
4ce794b7 | 8787 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
721956f4 AM |
8788 | { |
8789 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
8790 | ||
734b6cf9 AM |
8791 | if ((isec->output_section->flags & SEC_CODE) != 0 |
8792 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 8793 | { |
734b6cf9 | 8794 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 8795 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 8796 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
8797 | /* This happens to make the list in reverse order, |
8798 | which is what we want. */ | |
734b6cf9 AM |
8799 | PREV_SEC (isec) = *list; |
8800 | *list = isec; | |
721956f4 | 8801 | } |
ad8e1ba5 | 8802 | |
4c52953f | 8803 | if (htab->multi_toc_needed) |
9b5ecbd0 | 8804 | { |
4c52953f AM |
8805 | /* If a code section has a function that uses the TOC then we need |
8806 | to use the right TOC (obviously). Also, make sure that .opd gets | |
8807 | the correct TOC value for R_PPC64_TOC relocs that don't have or | |
8808 | can't find their function symbol (shouldn't ever happen now). */ | |
8809 | if (isec->has_toc_reloc || (isec->flags & SEC_CODE) == 0) | |
8810 | { | |
8811 | if (elf_gp (isec->owner) != 0) | |
8812 | htab->toc_curr = elf_gp (isec->owner); | |
8813 | } | |
8814 | else if (htab->stub_group[isec->id].toc_off == 0) | |
8815 | { | |
8816 | int ret = toc_adjusting_stub_needed (info, isec); | |
8817 | if (ret < 0) | |
8818 | return FALSE; | |
8819 | else | |
8820 | isec->makes_toc_func_call = ret & 1; | |
8821 | } | |
9b5ecbd0 | 8822 | } |
ad8e1ba5 AM |
8823 | |
8824 | /* Functions that don't use the TOC can belong in any TOC group. | |
8825 | Use the last TOC base. This happens to make _init and _fini | |
8826 | pasting work. */ | |
8827 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 8828 | return TRUE; |
721956f4 AM |
8829 | } |
8830 | ||
8831 | /* See whether we can group stub sections together. Grouping stub | |
8832 | sections may result in fewer stubs. More importantly, we need to | |
8833 | put all .init* and .fini* stubs at the beginning of the .init or | |
8834 | .fini output sections respectively, because glibc splits the | |
8835 | _init and _fini functions into multiple parts. Putting a stub in | |
8836 | the middle of a function is not a good idea. */ | |
8837 | ||
8838 | static void | |
4ce794b7 AM |
8839 | group_sections (struct ppc_link_hash_table *htab, |
8840 | bfd_size_type stub_group_size, | |
8841 | bfd_boolean stubs_always_before_branch) | |
721956f4 | 8842 | { |
734b6cf9 AM |
8843 | asection **list = htab->input_list + htab->top_index; |
8844 | do | |
721956f4 | 8845 | { |
734b6cf9 AM |
8846 | asection *tail = *list; |
8847 | while (tail != NULL) | |
721956f4 | 8848 | { |
734b6cf9 AM |
8849 | asection *curr; |
8850 | asection *prev; | |
8851 | bfd_size_type total; | |
8852 | bfd_boolean big_sec; | |
8853 | bfd_vma curr_toc; | |
8854 | ||
8855 | curr = tail; | |
eea6121a | 8856 | total = tail->size; |
5c3dead3 AM |
8857 | big_sec = total > stub_group_size; |
8858 | if (big_sec) | |
8859 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), | |
8860 | tail->owner, tail); | |
734b6cf9 AM |
8861 | curr_toc = htab->stub_group[tail->id].toc_off; |
8862 | ||
8863 | while ((prev = PREV_SEC (curr)) != NULL | |
8864 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
8865 | < stub_group_size) |
8866 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
8867 | curr = prev; |
8868 | ||
8869 | /* OK, the size from the start of CURR to the end is less | |
8870 | than stub_group_size and thus can be handled by one stub | |
8871 | section. (or the tail section is itself larger than | |
8872 | stub_group_size, in which case we may be toast.) We | |
8873 | should really be keeping track of the total size of stubs | |
8874 | added here, as stubs contribute to the final output | |
8875 | section size. That's a little tricky, and this way will | |
8876 | only break if stubs added make the total size more than | |
8877 | 2^25, ie. for the default stub_group_size, if stubs total | |
8878 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
8879 | do | |
721956f4 AM |
8880 | { |
8881 | prev = PREV_SEC (tail); | |
734b6cf9 | 8882 | /* Set up this stub group. */ |
721956f4 AM |
8883 | htab->stub_group[tail->id].link_sec = curr; |
8884 | } | |
734b6cf9 AM |
8885 | while (tail != curr && (tail = prev) != NULL); |
8886 | ||
8887 | /* But wait, there's more! Input sections up to stub_group_size | |
8888 | bytes before the stub section can be handled by it too. | |
8889 | Don't do this if we have a really large section after the | |
8890 | stubs, as adding more stubs increases the chance that | |
8891 | branches may not reach into the stub section. */ | |
8892 | if (!stubs_always_before_branch && !big_sec) | |
8893 | { | |
8894 | total = 0; | |
8895 | while (prev != NULL | |
8896 | && ((total += tail->output_offset - prev->output_offset) | |
8897 | < stub_group_size) | |
8898 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
8899 | { | |
8900 | tail = prev; | |
8901 | prev = PREV_SEC (tail); | |
8902 | htab->stub_group[tail->id].link_sec = curr; | |
8903 | } | |
8904 | } | |
8905 | tail = prev; | |
721956f4 AM |
8906 | } |
8907 | } | |
734b6cf9 AM |
8908 | while (list-- != htab->input_list); |
8909 | free (htab->input_list); | |
721956f4 AM |
8910 | #undef PREV_SEC |
8911 | } | |
8912 | ||
721956f4 AM |
8913 | /* Determine and set the size of the stub section for a final link. |
8914 | ||
8915 | The basic idea here is to examine all the relocations looking for | |
8916 | PC-relative calls to a target that is unreachable with a "bl" | |
8917 | instruction. */ | |
8918 | ||
b34976b6 | 8919 | bfd_boolean |
4ce794b7 | 8920 | ppc64_elf_size_stubs (bfd *output_bfd, |
4ce794b7 AM |
8921 | struct bfd_link_info *info, |
8922 | bfd_signed_vma group_size, | |
8923 | asection *(*add_stub_section) (const char *, asection *), | |
8924 | void (*layout_sections_again) (void)) | |
721956f4 AM |
8925 | { |
8926 | bfd_size_type stub_group_size; | |
b34976b6 | 8927 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
8928 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
8929 | ||
8930 | /* Stash our params away. */ | |
721956f4 AM |
8931 | htab->add_stub_section = add_stub_section; |
8932 | htab->layout_sections_again = layout_sections_again; | |
8933 | stubs_always_before_branch = group_size < 0; | |
8934 | if (group_size < 0) | |
8935 | stub_group_size = -group_size; | |
8936 | else | |
8937 | stub_group_size = group_size; | |
8938 | if (stub_group_size == 1) | |
8939 | { | |
8940 | /* Default values. */ | |
58ac9f71 AM |
8941 | if (stubs_always_before_branch) |
8942 | { | |
8943 | stub_group_size = 0x1e00000; | |
8944 | if (htab->has_14bit_branch) | |
8945 | stub_group_size = 0x7800; | |
8946 | } | |
8947 | else | |
8948 | { | |
8949 | stub_group_size = 0x1c00000; | |
8950 | if (htab->has_14bit_branch) | |
8951 | stub_group_size = 0x7000; | |
8952 | } | |
721956f4 AM |
8953 | } |
8954 | ||
8955 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
8956 | ||
721956f4 AM |
8957 | while (1) |
8958 | { | |
8959 | bfd *input_bfd; | |
8960 | unsigned int bfd_indx; | |
8961 | asection *stub_sec; | |
721956f4 AM |
8962 | |
8963 | htab->stub_iteration += 1; | |
721956f4 AM |
8964 | |
8965 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
8966 | input_bfd != NULL; | |
8967 | input_bfd = input_bfd->link_next, bfd_indx++) | |
8968 | { | |
8969 | Elf_Internal_Shdr *symtab_hdr; | |
8970 | asection *section; | |
6cdc0ccc | 8971 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 | 8972 | |
67f93c31 AM |
8973 | if (!is_ppc64_elf_target (input_bfd->xvec)) |
8974 | continue; | |
8975 | ||
721956f4 AM |
8976 | /* We'll need the symbol table in a second. */ |
8977 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
8978 | if (symtab_hdr->sh_info == 0) | |
8979 | continue; | |
8980 | ||
721956f4 AM |
8981 | /* Walk over each section attached to the input bfd. */ |
8982 | for (section = input_bfd->sections; | |
8983 | section != NULL; | |
8984 | section = section->next) | |
8985 | { | |
721956f4 | 8986 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
8987 | |
8988 | /* If there aren't any relocs, then there's nothing more | |
8989 | to do. */ | |
8990 | if ((section->flags & SEC_RELOC) == 0 | |
8991 | || section->reloc_count == 0) | |
8992 | continue; | |
8993 | ||
8994 | /* If this section is a link-once section that will be | |
8995 | discarded, then don't create any stubs. */ | |
8996 | if (section->output_section == NULL | |
8997 | || section->output_section->owner != output_bfd) | |
8998 | continue; | |
8999 | ||
1e2f5b6e AM |
9000 | /* Get the relocs. */ |
9001 | internal_relocs | |
4ce794b7 | 9002 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 9003 | info->keep_memory); |
721956f4 | 9004 | if (internal_relocs == NULL) |
1e2f5b6e | 9005 | goto error_ret_free_local; |
721956f4 AM |
9006 | |
9007 | /* Now examine each relocation. */ | |
9008 | irela = internal_relocs; | |
9009 | irelaend = irela + section->reloc_count; | |
9010 | for (; irela < irelaend; irela++) | |
9011 | { | |
4ce794b7 AM |
9012 | enum elf_ppc64_reloc_type r_type; |
9013 | unsigned int r_indx; | |
721956f4 AM |
9014 | enum ppc_stub_type stub_type; |
9015 | struct ppc_stub_hash_entry *stub_entry; | |
8387904d | 9016 | asection *sym_sec, *code_sec; |
721956f4 AM |
9017 | bfd_vma sym_value; |
9018 | bfd_vma destination; | |
8843416a | 9019 | bfd_boolean ok_dest; |
721956f4 | 9020 | struct ppc_link_hash_entry *hash; |
8387904d | 9021 | struct ppc_link_hash_entry *fdh; |
411e1bfb AM |
9022 | struct elf_link_hash_entry *h; |
9023 | Elf_Internal_Sym *sym; | |
721956f4 AM |
9024 | char *stub_name; |
9025 | const asection *id_sec; | |
8387904d | 9026 | long *opd_adjust; |
721956f4 AM |
9027 | |
9028 | r_type = ELF64_R_TYPE (irela->r_info); | |
9029 | r_indx = ELF64_R_SYM (irela->r_info); | |
9030 | ||
4ce794b7 | 9031 | if (r_type >= R_PPC64_max) |
721956f4 AM |
9032 | { |
9033 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 9034 | goto error_ret_free_internal; |
721956f4 AM |
9035 | } |
9036 | ||
9037 | /* Only look for stubs on branch instructions. */ | |
4ce794b7 AM |
9038 | if (r_type != R_PPC64_REL24 |
9039 | && r_type != R_PPC64_REL14 | |
9040 | && r_type != R_PPC64_REL14_BRTAKEN | |
9041 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
721956f4 AM |
9042 | continue; |
9043 | ||
9044 | /* Now determine the call target, its name, value, | |
9045 | section. */ | |
411e1bfb AM |
9046 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
9047 | r_indx, input_bfd)) | |
9048 | goto error_ret_free_internal; | |
9049 | hash = (struct ppc_link_hash_entry *) h; | |
9050 | ||
8843416a | 9051 | ok_dest = FALSE; |
8387904d | 9052 | fdh = NULL; |
7fe2b9a6 | 9053 | sym_value = 0; |
411e1bfb | 9054 | if (hash == NULL) |
721956f4 | 9055 | { |
411e1bfb | 9056 | sym_value = sym->st_value; |
8843416a | 9057 | ok_dest = TRUE; |
721956f4 | 9058 | } |
7fe2b9a6 AM |
9059 | else if (hash->elf.root.type == bfd_link_hash_defined |
9060 | || hash->elf.root.type == bfd_link_hash_defweak) | |
9061 | { | |
9062 | sym_value = hash->elf.root.u.def.value; | |
9063 | if (sym_sec->output_section != NULL) | |
9064 | ok_dest = TRUE; | |
9065 | } | |
9066 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
9067 | || hash->elf.root.type == bfd_link_hash_undefined) | |
721956f4 | 9068 | { |
99877b66 | 9069 | /* Recognise an old ABI func code entry sym, and |
7fe2b9a6 AM |
9070 | use the func descriptor sym instead if it is |
9071 | defined. */ | |
ceb1f1ef | 9072 | if (hash->elf.root.root.string[0] == '.' |
8387904d AM |
9073 | && (fdh = get_fdh (hash, htab)) != NULL) |
9074 | { | |
8387904d AM |
9075 | if (fdh->elf.root.type == bfd_link_hash_defined |
9076 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
9077 | { | |
9078 | sym_sec = fdh->elf.root.u.def.section; | |
9079 | sym_value = fdh->elf.root.u.def.value; | |
9080 | if (sym_sec->output_section != NULL) | |
9081 | ok_dest = TRUE; | |
9082 | } | |
99877b66 AM |
9083 | else |
9084 | fdh = NULL; | |
8387904d | 9085 | } |
7fe2b9a6 AM |
9086 | } |
9087 | else | |
9088 | { | |
9089 | bfd_set_error (bfd_error_bad_value); | |
9090 | goto error_ret_free_internal; | |
721956f4 AM |
9091 | } |
9092 | ||
8843416a AM |
9093 | destination = 0; |
9094 | if (ok_dest) | |
9095 | { | |
9096 | sym_value += irela->r_addend; | |
9097 | destination = (sym_value | |
9098 | + sym_sec->output_offset | |
9099 | + sym_sec->output_section->vma); | |
9100 | } | |
9101 | ||
8387904d AM |
9102 | code_sec = sym_sec; |
9103 | opd_adjust = get_opd_info (sym_sec); | |
9104 | if (opd_adjust != NULL) | |
9105 | { | |
9106 | bfd_vma dest; | |
9107 | ||
9108 | if (hash == NULL) | |
9109 | { | |
3f764659 | 9110 | long adjust = opd_adjust[sym_value / 8]; |
8387904d AM |
9111 | if (adjust == -1) |
9112 | continue; | |
9113 | sym_value += adjust; | |
9114 | } | |
9115 | dest = opd_entry_value (sym_sec, sym_value, | |
9116 | &code_sec, &sym_value); | |
9117 | if (dest != (bfd_vma) -1) | |
9118 | { | |
9119 | destination = dest; | |
9120 | if (fdh != NULL) | |
9121 | { | |
9122 | /* Fixup old ABI sym to point at code | |
9123 | entry. */ | |
99877b66 | 9124 | hash->elf.root.type = bfd_link_hash_defweak; |
8387904d AM |
9125 | hash->elf.root.u.def.section = code_sec; |
9126 | hash->elf.root.u.def.value = sym_value; | |
9127 | } | |
9128 | } | |
9129 | } | |
9130 | ||
721956f4 AM |
9131 | /* Determine what (if any) linker stub is needed. */ |
9132 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
9133 | destination); | |
ad8e1ba5 AM |
9134 | |
9135 | if (stub_type != ppc_stub_plt_call) | |
9136 | { | |
9137 | /* Check whether we need a TOC adjusting stub. | |
9138 | Since the linker pastes together pieces from | |
9139 | different object files when creating the | |
9140 | _init and _fini functions, it may be that a | |
9141 | call to what looks like a local sym is in | |
9142 | fact a call needing a TOC adjustment. */ | |
8387904d AM |
9143 | if (code_sec != NULL |
9144 | && code_sec->output_section != NULL | |
9145 | && (htab->stub_group[code_sec->id].toc_off | |
9b5ecbd0 | 9146 | != htab->stub_group[section->id].toc_off) |
4c52953f AM |
9147 | && (code_sec->has_toc_reloc |
9148 | || code_sec->makes_toc_func_call)) | |
ad8e1ba5 AM |
9149 | stub_type = ppc_stub_long_branch_r2off; |
9150 | } | |
9151 | ||
721956f4 AM |
9152 | if (stub_type == ppc_stub_none) |
9153 | continue; | |
9154 | ||
411e1bfb AM |
9155 | /* __tls_get_addr calls might be eliminated. */ |
9156 | if (stub_type != ppc_stub_plt_call | |
9157 | && hash != NULL | |
8387904d AM |
9158 | && (hash == htab->tls_get_addr |
9159 | || hash == htab->tls_get_addr_fd) | |
411e1bfb AM |
9160 | && section->has_tls_reloc |
9161 | && irela != internal_relocs) | |
9162 | { | |
9163 | /* Get tls info. */ | |
e7b938ca | 9164 | char *tls_mask; |
411e1bfb | 9165 | |
0d4792f7 | 9166 | if (!get_tls_mask (&tls_mask, NULL, &local_syms, |
411e1bfb AM |
9167 | irela - 1, input_bfd)) |
9168 | goto error_ret_free_internal; | |
e7b938ca | 9169 | if (*tls_mask != 0) |
411e1bfb AM |
9170 | continue; |
9171 | } | |
9172 | ||
721956f4 AM |
9173 | /* Support for grouping stub sections. */ |
9174 | id_sec = htab->stub_group[section->id].link_sec; | |
9175 | ||
9176 | /* Get the name of this stub. */ | |
9177 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
9178 | if (!stub_name) | |
9179 | goto error_ret_free_internal; | |
9180 | ||
9181 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 9182 | stub_name, FALSE, FALSE); |
721956f4 AM |
9183 | if (stub_entry != NULL) |
9184 | { | |
9185 | /* The proper stub has already been created. */ | |
9186 | free (stub_name); | |
9187 | continue; | |
9188 | } | |
9189 | ||
9190 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
9191 | if (stub_entry == NULL) | |
9192 | { | |
9193 | free (stub_name); | |
6cdc0ccc AM |
9194 | error_ret_free_internal: |
9195 | if (elf_section_data (section)->relocs == NULL) | |
9196 | free (internal_relocs); | |
9197 | error_ret_free_local: | |
9198 | if (local_syms != NULL | |
9199 | && (symtab_hdr->contents | |
9200 | != (unsigned char *) local_syms)) | |
9201 | free (local_syms); | |
b34976b6 | 9202 | return FALSE; |
721956f4 AM |
9203 | } |
9204 | ||
ad8e1ba5 | 9205 | stub_entry->stub_type = stub_type; |
721956f4 | 9206 | stub_entry->target_value = sym_value; |
8387904d | 9207 | stub_entry->target_section = code_sec; |
721956f4 | 9208 | stub_entry->h = hash; |
411e1bfb | 9209 | stub_entry->addend = irela->r_addend; |
ee75fd95 AM |
9210 | |
9211 | if (stub_entry->h != NULL) | |
9212 | htab->stub_globals += 1; | |
721956f4 AM |
9213 | } |
9214 | ||
9215 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 9216 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 9217 | free (internal_relocs); |
721956f4 | 9218 | } |
6cdc0ccc AM |
9219 | |
9220 | if (local_syms != NULL | |
9221 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
9222 | { | |
9223 | if (!info->keep_memory) | |
9224 | free (local_syms); | |
9225 | else | |
9226 | symtab_hdr->contents = (unsigned char *) local_syms; | |
9227 | } | |
721956f4 AM |
9228 | } |
9229 | ||
5c3dead3 | 9230 | /* We may have added some stubs. Find out the new size of the |
721956f4 AM |
9231 | stub sections. */ |
9232 | for (stub_sec = htab->stub_bfd->sections; | |
9233 | stub_sec != NULL; | |
9234 | stub_sec = stub_sec->next) | |
e717da7e | 9235 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
ee75fd95 | 9236 | { |
5c3dead3 | 9237 | stub_sec->rawsize = stub_sec->size; |
ee75fd95 AM |
9238 | stub_sec->size = 0; |
9239 | stub_sec->reloc_count = 0; | |
9240 | } | |
eea6121a AM |
9241 | |
9242 | htab->brlt->size = 0; | |
ee75fd95 | 9243 | if (htab->relbrlt != NULL) |
eea6121a | 9244 | htab->relbrlt->size = 0; |
721956f4 | 9245 | |
63bc6f6c | 9246 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
721956f4 | 9247 | |
5c3dead3 AM |
9248 | for (stub_sec = htab->stub_bfd->sections; |
9249 | stub_sec != NULL; | |
9250 | stub_sec = stub_sec->next) | |
9251 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
9252 | && stub_sec->rawsize != stub_sec->size) | |
9253 | break; | |
9254 | ||
9255 | /* Exit from this loop when no stubs have been added, and no stubs | |
9256 | have changed size. */ | |
9257 | if (stub_sec == NULL) | |
9258 | break; | |
9259 | ||
721956f4 AM |
9260 | /* Ask the linker to do its stuff. */ |
9261 | (*htab->layout_sections_again) (); | |
9262 | } | |
9263 | ||
c456f082 | 9264 | /* It would be nice to strip htab->brlt from the output if the |
afbe61cf AM |
9265 | section is empty, but it's too late. If we strip sections here, |
9266 | the dynamic symbol table is corrupted since the section symbol | |
9267 | for the stripped section isn't written. */ | |
721956f4 | 9268 | |
b34976b6 | 9269 | return TRUE; |
721956f4 AM |
9270 | } |
9271 | ||
9272 | /* Called after we have determined section placement. If sections | |
805fc799 | 9273 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 9274 | |
805fc799 | 9275 | bfd_vma |
4ce794b7 | 9276 | ppc64_elf_toc (bfd *obfd) |
721956f4 | 9277 | { |
805fc799 AM |
9278 | asection *s; |
9279 | bfd_vma TOCstart; | |
721956f4 | 9280 | |
805fc799 AM |
9281 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
9282 | order. The TOC starts where the first of these sections starts. */ | |
9283 | s = bfd_get_section_by_name (obfd, ".got"); | |
9284 | if (s == NULL) | |
9285 | s = bfd_get_section_by_name (obfd, ".toc"); | |
9286 | if (s == NULL) | |
9287 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
9288 | if (s == NULL) | |
9289 | s = bfd_get_section_by_name (obfd, ".plt"); | |
9290 | if (s == NULL) | |
9291 | { | |
9292 | /* This may happen for | |
9293 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
9294 | .toc directive | |
9295 | o bad linker script | |
9296 | o --gc-sections and empty TOC sections | |
9297 | ||
9298 | FIXME: Warn user? */ | |
9299 | ||
9300 | /* Look for a likely section. We probably won't even be | |
9301 | using TOCstart. */ | |
9302 | for (s = obfd->sections; s != NULL; s = s->next) | |
9303 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
9304 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
9305 | break; | |
721956f4 | 9306 | if (s == NULL) |
805fc799 AM |
9307 | for (s = obfd->sections; s != NULL; s = s->next) |
9308 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
9309 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
9310 | break; | |
721956f4 | 9311 | if (s == NULL) |
805fc799 AM |
9312 | for (s = obfd->sections; s != NULL; s = s->next) |
9313 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
9314 | break; | |
721956f4 | 9315 | if (s == NULL) |
805fc799 AM |
9316 | for (s = obfd->sections; s != NULL; s = s->next) |
9317 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
9318 | break; | |
9319 | } | |
721956f4 | 9320 | |
805fc799 AM |
9321 | TOCstart = 0; |
9322 | if (s != NULL) | |
9323 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 9324 | |
805fc799 | 9325 | return TOCstart; |
721956f4 AM |
9326 | } |
9327 | ||
9328 | /* Build all the stubs associated with the current output file. | |
9329 | The stubs are kept in a hash table attached to the main linker | |
9330 | hash table. This function is called via gldelf64ppc_finish. */ | |
9331 | ||
b34976b6 | 9332 | bfd_boolean |
4ce794b7 AM |
9333 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
9334 | struct bfd_link_info *info, | |
9335 | char **stats) | |
5d1634d7 AM |
9336 | { |
9337 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 9338 | asection *stub_sec; |
5d1634d7 | 9339 | bfd_byte *p; |
e717da7e | 9340 | int stub_sec_count = 0; |
5d1634d7 | 9341 | |
ad8e1ba5 | 9342 | htab->emit_stub_syms = emit_stub_syms; |
eea6121a AM |
9343 | |
9344 | /* Allocate memory to hold the linker stubs. */ | |
721956f4 AM |
9345 | for (stub_sec = htab->stub_bfd->sections; |
9346 | stub_sec != NULL; | |
9347 | stub_sec = stub_sec->next) | |
eea6121a AM |
9348 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
9349 | && stub_sec->size != 0) | |
e717da7e | 9350 | { |
eea6121a AM |
9351 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); |
9352 | if (stub_sec->contents == NULL) | |
9353 | return FALSE; | |
9354 | /* We want to check that built size is the same as calculated | |
9355 | size. rawsize is a convenient location to use. */ | |
9356 | stub_sec->rawsize = stub_sec->size; | |
9357 | stub_sec->size = 0; | |
e717da7e | 9358 | } |
5d1634d7 | 9359 | |
4ce794b7 | 9360 | if (htab->plt != NULL) |
5d1634d7 | 9361 | { |
9f951329 | 9362 | unsigned int indx; |
ad8e1ba5 | 9363 | bfd_vma plt0; |
9f951329 | 9364 | |
721956f4 | 9365 | /* Build the .glink plt call stub. */ |
4ce794b7 AM |
9366 | plt0 = (htab->plt->output_section->vma |
9367 | + htab->plt->output_offset | |
9368 | - (htab->glink->output_section->vma | |
9369 | + htab->glink->output_offset | |
ad8e1ba5 AM |
9370 | + GLINK_CALL_STUB_SIZE)); |
9371 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 9372 | { |
ad8e1ba5 AM |
9373 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
9374 | bfd_set_error (bfd_error_bad_value); | |
9375 | return FALSE; | |
721956f4 | 9376 | } |
721956f4 | 9377 | |
97b639ba AM |
9378 | if (htab->emit_stub_syms) |
9379 | { | |
9380 | struct elf_link_hash_entry *h; | |
9381 | h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE); | |
9382 | if (h == NULL) | |
9383 | return FALSE; | |
9384 | if (h->root.type == bfd_link_hash_new) | |
9385 | { | |
9386 | h->root.type = bfd_link_hash_defined; | |
9387 | h->root.u.def.section = htab->glink; | |
9388 | h->root.u.def.value = 0; | |
f5385ebf AM |
9389 | h->ref_regular = 1; |
9390 | h->def_regular = 1; | |
9391 | h->ref_regular_nonweak = 1; | |
9392 | h->forced_local = 1; | |
9393 | h->non_elf = 0; | |
97b639ba AM |
9394 | } |
9395 | } | |
4ce794b7 AM |
9396 | p = htab->glink->contents; |
9397 | bfd_put_32 (htab->glink->owner, MFCTR_R12, p); | |
ad8e1ba5 | 9398 | p += 4; |
4ce794b7 | 9399 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p); |
ad8e1ba5 | 9400 | p += 4; |
4ce794b7 | 9401 | bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p); |
ad8e1ba5 | 9402 | p += 4; |
4ce794b7 | 9403 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 9404 | p += 4; |
4ce794b7 | 9405 | bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p); |
ad8e1ba5 | 9406 | p += 4; |
4ce794b7 | 9407 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p); |
ad8e1ba5 | 9408 | p += 4; |
4ce794b7 | 9409 | bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p); |
ad8e1ba5 | 9410 | p += 4; |
4ce794b7 | 9411 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 9412 | p += 4; |
4ce794b7 | 9413 | bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p); |
ad8e1ba5 | 9414 | p += 4; |
4ce794b7 | 9415 | bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); |
ad8e1ba5 | 9416 | p += 4; |
4ce794b7 | 9417 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 9418 | p += 4; |
4ce794b7 | 9419 | bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 9420 | p += 4; |
4ce794b7 | 9421 | bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p); |
ad8e1ba5 | 9422 | p += 4; |
4ce794b7 | 9423 | bfd_put_32 (htab->glink->owner, MTCTR_R11, p); |
ad8e1ba5 | 9424 | p += 4; |
4ce794b7 | 9425 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p); |
ad8e1ba5 | 9426 | p += 4; |
4ce794b7 | 9427 | bfd_put_32 (htab->glink->owner, BCTR, p); |
ad8e1ba5 AM |
9428 | p += 4; |
9429 | ||
9f951329 AM |
9430 | /* Build the .glink lazy link call stubs. */ |
9431 | indx = 0; | |
eea6121a | 9432 | while (p < htab->glink->contents + htab->glink->size) |
9f951329 AM |
9433 | { |
9434 | if (indx < 0x8000) | |
9435 | { | |
4ce794b7 | 9436 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
9f951329 AM |
9437 | p += 4; |
9438 | } | |
9439 | else | |
9440 | { | |
4ce794b7 | 9441 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
9f951329 | 9442 | p += 4; |
4ce794b7 | 9443 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
9f951329 AM |
9444 | p += 4; |
9445 | } | |
4ce794b7 AM |
9446 | bfd_put_32 (htab->glink->owner, |
9447 | B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 9448 | indx++; |
9f951329 AM |
9449 | p += 4; |
9450 | } | |
eea6121a | 9451 | htab->glink->rawsize = p - htab->glink->contents; |
5d1634d7 | 9452 | } |
5d1634d7 | 9453 | |
eea6121a | 9454 | if (htab->brlt->size != 0) |
721956f4 | 9455 | { |
4ce794b7 | 9456 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
eea6121a | 9457 | htab->brlt->size); |
4ce794b7 | 9458 | if (htab->brlt->contents == NULL) |
b34976b6 | 9459 | return FALSE; |
721956f4 | 9460 | } |
ee75fd95 | 9461 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
63bc6f6c AM |
9462 | { |
9463 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
eea6121a | 9464 | htab->relbrlt->size); |
63bc6f6c AM |
9465 | if (htab->relbrlt->contents == NULL) |
9466 | return FALSE; | |
9467 | } | |
5d1634d7 | 9468 | |
721956f4 AM |
9469 | /* Build the stubs as directed by the stub hash table. */ |
9470 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 9471 | |
721956f4 AM |
9472 | for (stub_sec = htab->stub_bfd->sections; |
9473 | stub_sec != NULL; | |
9474 | stub_sec = stub_sec->next) | |
e717da7e AM |
9475 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
9476 | { | |
9477 | stub_sec_count += 1; | |
eea6121a | 9478 | if (stub_sec->rawsize != stub_sec->size) |
e717da7e AM |
9479 | break; |
9480 | } | |
5d1634d7 | 9481 | |
721956f4 | 9482 | if (stub_sec != NULL |
eea6121a | 9483 | || htab->glink->rawsize != htab->glink->size) |
5d1634d7 | 9484 | { |
b34976b6 | 9485 | htab->stub_error = TRUE; |
721956f4 | 9486 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 9487 | } |
721956f4 | 9488 | |
d2a300cf AM |
9489 | if (htab->stub_error) |
9490 | return FALSE; | |
9491 | ||
9492 | if (stats != NULL) | |
9493 | { | |
9494 | *stats = bfd_malloc (500); | |
9495 | if (*stats == NULL) | |
9496 | return FALSE; | |
9497 | ||
ee75fd95 | 9498 | sprintf (*stats, _("linker stubs in %u group%s\n" |
d2a300cf AM |
9499 | " branch %lu\n" |
9500 | " toc adjust %lu\n" | |
9501 | " long branch %lu\n" | |
9502 | " long toc adj %lu\n" | |
9503 | " plt call %lu"), | |
e717da7e | 9504 | stub_sec_count, |
ee75fd95 | 9505 | stub_sec_count == 1 ? "" : "s", |
4ce794b7 AM |
9506 | htab->stub_count[ppc_stub_long_branch - 1], |
9507 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
9508 | htab->stub_count[ppc_stub_plt_branch - 1], | |
9509 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
9510 | htab->stub_count[ppc_stub_plt_call - 1]); | |
d2a300cf AM |
9511 | } |
9512 | return TRUE; | |
5bd4f169 AM |
9513 | } |
9514 | ||
99877b66 AM |
9515 | /* This function undoes the changes made by add_symbol_adjust. */ |
9516 | ||
9517 | static bfd_boolean | |
9518 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
9519 | { | |
9520 | struct ppc_link_hash_entry *eh; | |
9521 | ||
9522 | if (h->root.type == bfd_link_hash_indirect) | |
9523 | return TRUE; | |
9524 | ||
9525 | if (h->root.type == bfd_link_hash_warning) | |
9526 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
9527 | ||
9528 | eh = (struct ppc_link_hash_entry *) h; | |
9529 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
9530 | return TRUE; | |
9531 | ||
9532 | eh->elf.root.type = bfd_link_hash_undefined; | |
9533 | return TRUE; | |
9534 | } | |
9535 | ||
9536 | void | |
9537 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
9538 | { | |
9539 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9540 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
9541 | } | |
9542 | ||
60124e18 AM |
9543 | /* What to do when ld finds relocations against symbols defined in |
9544 | discarded sections. */ | |
9545 | ||
9546 | static unsigned int | |
9547 | ppc64_elf_action_discarded (asection *sec) | |
9548 | { | |
9549 | if (strcmp (".opd", sec->name) == 0) | |
9550 | return 0; | |
9551 | ||
9552 | if (strcmp (".toc", sec->name) == 0) | |
9553 | return 0; | |
9554 | ||
bce50a28 JJ |
9555 | if (strcmp (".toc1", sec->name) == 0) |
9556 | return 0; | |
9557 | ||
60124e18 AM |
9558 | return _bfd_elf_default_action_discarded (sec); |
9559 | } | |
9560 | ||
5bd4f169 AM |
9561 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
9562 | to handle the relocations for a section. | |
9563 | ||
9564 | The relocs are always passed as Rela structures; if the section | |
9565 | actually uses Rel structures, the r_addend field will always be | |
9566 | zero. | |
9567 | ||
9568 | This function is responsible for adjust the section contents as | |
9569 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 9570 | relocatable output file) adjusting the reloc addend as |
5bd4f169 AM |
9571 | necessary. |
9572 | ||
9573 | This function does not have to worry about setting the reloc | |
9574 | address or the reloc symbol index. | |
9575 | ||
9576 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
9577 | ||
9578 | LOCAL_SECTIONS is an array giving the section in the input file | |
9579 | corresponding to the st_shndx field of each local symbol. | |
9580 | ||
9581 | The global hash table entry for the global symbols can be found | |
9582 | via elf_sym_hashes (input_bfd). | |
9583 | ||
1049f94e | 9584 | When generating relocatable output, this function must handle |
5bd4f169 AM |
9585 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
9586 | going to be the section symbol corresponding to the output | |
9587 | section, which means that the addend must be adjusted | |
9588 | accordingly. */ | |
9589 | ||
b34976b6 | 9590 | static bfd_boolean |
4ce794b7 AM |
9591 | ppc64_elf_relocate_section (bfd *output_bfd, |
9592 | struct bfd_link_info *info, | |
9593 | bfd *input_bfd, | |
9594 | asection *input_section, | |
9595 | bfd_byte *contents, | |
9596 | Elf_Internal_Rela *relocs, | |
9597 | Elf_Internal_Sym *local_syms, | |
9598 | asection **local_sections) | |
5bd4f169 | 9599 | { |
65f38f15 | 9600 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
9601 | Elf_Internal_Shdr *symtab_hdr; |
9602 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
9603 | Elf_Internal_Rela *rel; |
9604 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
9605 | Elf_Internal_Rela outrel; |
9606 | bfd_byte *loc; | |
411e1bfb | 9607 | struct got_entry **local_got_ents; |
5bd4f169 | 9608 | bfd_vma TOCstart; |
b34976b6 AM |
9609 | bfd_boolean ret = TRUE; |
9610 | bfd_boolean is_opd; | |
96e0dda4 | 9611 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 9612 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 9613 | |
65f38f15 | 9614 | /* Initialize howto table if needed. */ |
5bd4f169 | 9615 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
9616 | ppc_howto_init (); |
9617 | ||
65f38f15 | 9618 | htab = ppc_hash_table (info); |
ee75fd95 AM |
9619 | |
9620 | /* Don't relocate stub sections. */ | |
9621 | if (input_section->owner == htab->stub_bfd) | |
9622 | return TRUE; | |
9623 | ||
411e1bfb | 9624 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 9625 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
9626 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
9627 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 9628 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 9629 | |
5bd4f169 AM |
9630 | rel = relocs; |
9631 | relend = relocs + input_section->reloc_count; | |
9632 | for (; rel < relend; rel++) | |
9633 | { | |
04c9666a | 9634 | enum elf_ppc64_reloc_type r_type; |
4cc603a5 | 9635 | bfd_vma addend, orig_addend; |
5bd4f169 AM |
9636 | bfd_reloc_status_type r; |
9637 | Elf_Internal_Sym *sym; | |
9638 | asection *sec; | |
039b3fef AM |
9639 | struct elf_link_hash_entry *h_elf; |
9640 | struct ppc_link_hash_entry *h; | |
9641 | struct ppc_link_hash_entry *fdh; | |
5bd4f169 | 9642 | const char *sym_name; |
0d4792f7 | 9643 | unsigned long r_symndx, toc_symndx; |
951fd09b | 9644 | char tls_mask, tls_gd, tls_type; |
0d4792f7 | 9645 | char sym_type; |
5bd4f169 | 9646 | bfd_vma relocation; |
b34976b6 AM |
9647 | bfd_boolean unresolved_reloc; |
9648 | bfd_boolean warned; | |
50bc7936 | 9649 | unsigned long insn, mask; |
721956f4 AM |
9650 | struct ppc_stub_hash_entry *stub_entry; |
9651 | bfd_vma max_br_offset; | |
9652 | bfd_vma from; | |
5bd4f169 | 9653 | |
4ce794b7 | 9654 | r_type = ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 9655 | r_symndx = ELF64_R_SYM (rel->r_info); |
ee87f2da AM |
9656 | |
9657 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
9658 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
9659 | proper TOC base to use. */ | |
9660 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
9661 | && rel != relocs | |
9662 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
9663 | && is_opd) | |
9664 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
9665 | ||
4ce794b7 AM |
9666 | sym = NULL; |
9667 | sec = NULL; | |
039b3fef | 9668 | h_elf = NULL; |
4ce794b7 | 9669 | sym_name = NULL; |
b34976b6 AM |
9670 | unresolved_reloc = FALSE; |
9671 | warned = FALSE; | |
4cc603a5 | 9672 | orig_addend = rel->r_addend; |
65f38f15 | 9673 | |
0b13192e | 9674 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
9675 | { |
9676 | /* It's a local symbol. */ | |
4025353c AM |
9677 | long *opd_adjust; |
9678 | ||
5bd4f169 AM |
9679 | sym = local_syms + r_symndx; |
9680 | sec = local_sections[r_symndx]; | |
26c61ae5 | 9681 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
0d4792f7 | 9682 | sym_type = ELF64_ST_TYPE (sym->st_info); |
8517fae7 | 9683 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
4025353c AM |
9684 | opd_adjust = get_opd_info (sec); |
9685 | if (opd_adjust != NULL) | |
1e2f5b6e | 9686 | { |
3f764659 | 9687 | long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8]; |
4025353c AM |
9688 | if (adjust == -1) |
9689 | relocation = 0; | |
9690 | else | |
4cc603a5 AM |
9691 | { |
9692 | /* If this is a relocation against the opd section sym | |
9693 | and we have edited .opd, adjust the reloc addend so | |
9694 | that ld -r and ld --emit-relocs output is correct. | |
9695 | If it is a reloc against some other .opd symbol, | |
9696 | then the symbol value will be adjusted later. */ | |
9697 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
9698 | rel->r_addend += adjust; | |
9699 | else | |
9700 | relocation += adjust; | |
9701 | } | |
1e2f5b6e | 9702 | } |
4cc603a5 AM |
9703 | if (info->relocatable) |
9704 | continue; | |
5bd4f169 AM |
9705 | } |
9706 | else | |
9707 | { | |
4cc603a5 AM |
9708 | if (info->relocatable) |
9709 | continue; | |
b2a8e766 AM |
9710 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
9711 | r_symndx, symtab_hdr, sym_hashes, | |
039b3fef | 9712 | h_elf, sec, relocation, |
b2a8e766 | 9713 | unresolved_reloc, warned); |
039b3fef AM |
9714 | sym_name = h_elf->root.root.string; |
9715 | sym_type = h_elf->type; | |
5bd4f169 | 9716 | } |
039b3fef | 9717 | h = (struct ppc_link_hash_entry *) h_elf; |
5bd4f169 | 9718 | |
951fd09b AM |
9719 | /* TLS optimizations. Replace instruction sequences and relocs |
9720 | based on information we collected in tls_optimize. We edit | |
9721 | RELOCS so that --emit-relocs will output something sensible | |
9722 | for the final instruction stream. */ | |
9723 | tls_mask = 0; | |
9724 | tls_gd = 0; | |
0d4792f7 | 9725 | toc_symndx = 0; |
d881513a | 9726 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
9727 | { |
9728 | if (h != NULL) | |
039b3fef | 9729 | tls_mask = h->tls_mask; |
411e1bfb AM |
9730 | else if (local_got_ents != NULL) |
9731 | { | |
e7b938ca AM |
9732 | char *lgot_masks; |
9733 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
9734 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb | 9735 | } |
0d4792f7 AM |
9736 | if (tls_mask == 0 && r_type == R_PPC64_TLS) |
9737 | { | |
9738 | /* Check for toc tls entries. */ | |
9739 | char *toc_tls; | |
9740 | ||
9741 | if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms, | |
9742 | rel, input_bfd)) | |
9743 | return FALSE; | |
9744 | ||
9745 | if (toc_tls) | |
9746 | tls_mask = *toc_tls; | |
9747 | } | |
9748 | } | |
9749 | ||
9750 | /* Check that tls relocs are used with tls syms, and non-tls | |
9751 | relocs are used with non-tls syms. */ | |
9752 | if (r_symndx != 0 | |
9753 | && r_type != R_PPC64_NONE | |
9754 | && (h == NULL | |
039b3fef AM |
9755 | || h->elf.root.type == bfd_link_hash_defined |
9756 | || h->elf.root.type == bfd_link_hash_defweak) | |
0d4792f7 AM |
9757 | && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS)) |
9758 | { | |
9759 | if (r_type == R_PPC64_TLS && tls_mask != 0) | |
9760 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ | |
9761 | ; | |
9762 | else | |
9763 | (*_bfd_error_handler) | |
9764 | (sym_type == STT_TLS | |
d003868e AM |
9765 | ? _("%B(%A+0x%lx): %s used with TLS symbol %s") |
9766 | : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"), | |
9767 | input_bfd, | |
9768 | input_section, | |
0d4792f7 AM |
9769 | (long) rel->r_offset, |
9770 | ppc64_elf_howto_table[r_type]->name, | |
9771 | sym_name); | |
411e1bfb AM |
9772 | } |
9773 | ||
9774 | /* Ensure reloc mapping code below stays sane. */ | |
9775 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
9776 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
9777 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
9778 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
9779 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
9780 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
9781 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
9782 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
9783 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
9784 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
9785 | abort (); | |
0d4792f7 | 9786 | |
411e1bfb AM |
9787 | switch (r_type) |
9788 | { | |
9789 | default: | |
411e1bfb AM |
9790 | break; |
9791 | ||
9792 | case R_PPC64_TOC16: | |
9793 | case R_PPC64_TOC16_LO: | |
9794 | case R_PPC64_TOC16_DS: | |
9795 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
9796 | { |
9797 | /* Check for toc tls entries. */ | |
9798 | char *toc_tls; | |
951fd09b | 9799 | int retval; |
411e1bfb | 9800 | |
0d4792f7 AM |
9801 | retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms, |
9802 | rel, input_bfd); | |
951fd09b | 9803 | if (retval == 0) |
411e1bfb AM |
9804 | return FALSE; |
9805 | ||
9806 | if (toc_tls) | |
9807 | { | |
951fd09b | 9808 | tls_mask = *toc_tls; |
411e1bfb AM |
9809 | if (r_type == R_PPC64_TOC16_DS |
9810 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
9811 | { |
9812 | if (tls_mask != 0 | |
9813 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
9814 | goto toctprel; | |
9815 | } | |
411e1bfb | 9816 | else |
951fd09b AM |
9817 | { |
9818 | /* If we found a GD reloc pair, then we might be | |
9819 | doing a GD->IE transition. */ | |
9820 | if (retval == 2) | |
9821 | { | |
9822 | tls_gd = TLS_TPRELGD; | |
9823 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9824 | goto tls_get_addr_check; | |
9825 | } | |
9826 | else if (retval == 3) | |
9827 | { | |
9828 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
9829 | goto tls_get_addr_check; | |
9830 | } | |
9831 | } | |
411e1bfb AM |
9832 | } |
9833 | } | |
9834 | break; | |
9835 | ||
9836 | case R_PPC64_GOT_TPREL16_DS: | |
9837 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
9838 | if (tls_mask != 0 |
9839 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 9840 | { |
81407a69 | 9841 | toctprel: |
411e1bfb AM |
9842 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
9843 | insn &= 31 << 21; | |
9844 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
9845 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
9846 | r_type = R_PPC64_TPREL16_HA; | |
0d4792f7 AM |
9847 | if (toc_symndx != 0) |
9848 | { | |
9849 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
9850 | /* We changed the symbol. Start over in order to | |
9851 | get h, sym, sec etc. right. */ | |
9852 | rel--; | |
9853 | continue; | |
9854 | } | |
9855 | else | |
9856 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9857 | } |
9858 | break; | |
9859 | ||
9860 | case R_PPC64_TLS: | |
951fd09b AM |
9861 | if (tls_mask != 0 |
9862 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 9863 | { |
50bc7936 | 9864 | bfd_vma rtra; |
411e1bfb | 9865 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
772119ce | 9866 | if ((insn & ((0x3f << 26) | (31 << 11))) |
411e1bfb AM |
9867 | == ((31 << 26) | (13 << 11))) |
9868 | rtra = insn & ((1 << 26) - (1 << 16)); | |
772119ce | 9869 | else if ((insn & ((0x3f << 26) | (31 << 16))) |
411e1bfb AM |
9870 | == ((31 << 26) | (13 << 16))) |
9871 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
9872 | else | |
9873 | abort (); | |
9874 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
9875 | /* add -> addi. */ | |
9876 | insn = 14 << 26; | |
9877 | else if ((insn & (31 << 1)) == 23 << 1 | |
9878 | && ((insn & (31 << 6)) < 14 << 6 | |
9879 | || ((insn & (31 << 6)) >= 16 << 6 | |
9880 | && (insn & (31 << 6)) < 24 << 6))) | |
9881 | /* load and store indexed -> dform. */ | |
9882 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
9883 | else if ((insn & (31 << 1)) == 21 << 1 | |
9884 | && (insn & (0x1a << 6)) == 0) | |
9885 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
9886 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
9887 | | ((insn >> 6) & 1)); | |
9888 | else if ((insn & (31 << 1)) == 21 << 1 | |
9889 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
9890 | /* lwax -> lwa. */ | |
9891 | insn = (58 << 26) | 2; | |
9892 | else | |
9893 | abort (); | |
9894 | insn |= rtra; | |
9895 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
411e1bfb AM |
9896 | /* Was PPC64_TLS which sits on insn boundary, now |
9897 | PPC64_TPREL16_LO which is at insn+2. */ | |
9898 | rel->r_offset += 2; | |
0d4792f7 AM |
9899 | r_type = R_PPC64_TPREL16_LO; |
9900 | if (toc_symndx != 0) | |
9901 | { | |
9902 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
9903 | /* We changed the symbol. Start over in order to | |
9904 | get h, sym, sec etc. right. */ | |
9905 | rel--; | |
9906 | continue; | |
9907 | } | |
9908 | else | |
9909 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9910 | } |
9911 | break; | |
9912 | ||
411e1bfb AM |
9913 | case R_PPC64_GOT_TLSGD16_HI: |
9914 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
9915 | tls_gd = TLS_TPRELGD; |
9916 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9917 | goto tls_gdld_hi; | |
9918 | break; | |
9919 | ||
411e1bfb AM |
9920 | case R_PPC64_GOT_TLSLD16_HI: |
9921 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 9922 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 9923 | { |
951fd09b AM |
9924 | tls_gdld_hi: |
9925 | if ((tls_mask & tls_gd) != 0) | |
9926 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
9927 | + R_PPC64_GOT_TPREL16_DS); | |
9928 | else | |
411e1bfb | 9929 | { |
951fd09b AM |
9930 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
9931 | rel->r_offset -= 2; | |
9932 | r_type = R_PPC64_NONE; | |
411e1bfb | 9933 | } |
951fd09b | 9934 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
9935 | } |
9936 | break; | |
9937 | ||
951fd09b AM |
9938 | case R_PPC64_GOT_TLSGD16: |
9939 | case R_PPC64_GOT_TLSGD16_LO: | |
9940 | tls_gd = TLS_TPRELGD; | |
9941 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9942 | goto tls_get_addr_check; | |
9943 | break; | |
411e1bfb | 9944 | |
951fd09b AM |
9945 | case R_PPC64_GOT_TLSLD16: |
9946 | case R_PPC64_GOT_TLSLD16_LO: | |
9947 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
9948 | { | |
9949 | tls_get_addr_check: | |
9950 | if (rel + 1 < relend) | |
411e1bfb | 9951 | { |
951fd09b AM |
9952 | enum elf_ppc64_reloc_type r_type2; |
9953 | unsigned long r_symndx2; | |
9954 | struct elf_link_hash_entry *h2; | |
9955 | bfd_vma insn1, insn2, insn3; | |
9956 | bfd_vma offset; | |
9957 | ||
9958 | /* The next instruction should be a call to | |
9959 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4ce794b7 | 9960 | r_type2 = ELF64_R_TYPE (rel[1].r_info); |
951fd09b AM |
9961 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); |
9962 | if (r_symndx2 < symtab_hdr->sh_info | |
9963 | || (r_type2 != R_PPC64_REL14 | |
9964 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
9965 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
9966 | && r_type2 != R_PPC64_REL24)) | |
9967 | break; | |
9968 | ||
9969 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
9970 | while (h2->root.type == bfd_link_hash_indirect | |
9971 | || h2->root.type == bfd_link_hash_warning) | |
9972 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
8387904d AM |
9973 | if (h2 == NULL || (h2 != &htab->tls_get_addr->elf |
9974 | && h2 != &htab->tls_get_addr_fd->elf)) | |
951fd09b AM |
9975 | break; |
9976 | ||
9977 | /* OK, it checks out. Replace the call. */ | |
9978 | offset = rel[1].r_offset; | |
9979 | insn1 = bfd_get_32 (output_bfd, | |
9980 | contents + rel->r_offset - 2); | |
9981 | insn3 = bfd_get_32 (output_bfd, | |
9982 | contents + offset + 4); | |
9983 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 9984 | { |
951fd09b AM |
9985 | /* IE */ |
9986 | insn1 &= (1 << 26) - (1 << 2); | |
9987 | insn1 |= 58 << 26; /* ld */ | |
9988 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
9989 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
9990 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
9991 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
9992 | + R_PPC64_GOT_TPREL16_DS); | |
9993 | else | |
9994 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
9995 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9996 | } |
9997 | else | |
951fd09b AM |
9998 | { |
9999 | /* LE */ | |
10000 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
10001 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
10002 | if (tls_gd == 0) | |
10003 | { | |
10004 | /* Was an LD reloc. */ | |
10005 | r_symndx = 0; | |
e1918d23 AM |
10006 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
10007 | rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; | |
951fd09b | 10008 | } |
0d4792f7 AM |
10009 | else if (toc_symndx != 0) |
10010 | r_symndx = toc_symndx; | |
951fd09b AM |
10011 | r_type = R_PPC64_TPREL16_HA; |
10012 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
10013 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
10014 | R_PPC64_TPREL16_LO); | |
10015 | rel[1].r_offset += 2; | |
10016 | } | |
10017 | if (insn3 == NOP | |
10018 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
10019 | { | |
10020 | insn3 = insn2; | |
10021 | insn2 = NOP; | |
10022 | rel[1].r_offset += 4; | |
10023 | } | |
10024 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
10025 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
10026 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
0d4792f7 | 10027 | if (tls_gd == 0 || toc_symndx != 0) |
951fd09b | 10028 | { |
0d4792f7 AM |
10029 | /* We changed the symbol. Start over in order |
10030 | to get h, sym, sec etc. right. */ | |
951fd09b AM |
10031 | rel--; |
10032 | continue; | |
10033 | } | |
411e1bfb | 10034 | } |
411e1bfb | 10035 | } |
411e1bfb AM |
10036 | break; |
10037 | ||
10038 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
10039 | if (rel + 1 < relend |
10040 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
10041 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 10042 | { |
951fd09b AM |
10043 | if ((tls_mask & TLS_GD) == 0) |
10044 | { | |
10045 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
10046 | if ((tls_mask & TLS_TPRELGD) != 0) | |
10047 | r_type = R_PPC64_TPREL64; | |
10048 | else | |
10049 | { | |
4ce794b7 | 10050 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
951fd09b AM |
10051 | r_type = R_PPC64_NONE; |
10052 | } | |
10053 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
10054 | } | |
10055 | } | |
10056 | else | |
10057 | { | |
10058 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb | 10059 | { |
4ce794b7 | 10060 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
411e1bfb | 10061 | r_type = R_PPC64_NONE; |
951fd09b | 10062 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 10063 | } |
411e1bfb AM |
10064 | } |
10065 | break; | |
10066 | ||
10067 | case R_PPC64_TPREL64: | |
951fd09b | 10068 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
10069 | { |
10070 | r_type = R_PPC64_NONE; | |
10071 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
10072 | } | |
10073 | break; | |
10074 | } | |
10075 | ||
10076 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 10077 | insn = 0; |
b25116a9 AM |
10078 | max_br_offset = 1 << 25; |
10079 | addend = rel->r_addend; | |
65f38f15 | 10080 | switch (r_type) |
5bd4f169 AM |
10081 | { |
10082 | default: | |
65f38f15 | 10083 | break; |
5bd4f169 | 10084 | |
65f38f15 AM |
10085 | /* Branch taken prediction relocations. */ |
10086 | case R_PPC64_ADDR14_BRTAKEN: | |
10087 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
10088 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
10089 | /* Fall thru. */ | |
65f38f15 | 10090 | |
86c76c7b | 10091 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
10092 | case R_PPC64_ADDR14_BRNTAKEN: |
10093 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
10094 | insn |= bfd_get_32 (output_bfd, |
10095 | contents + rel->r_offset) & ~(0x01 << 21); | |
b25116a9 | 10096 | /* Fall thru. */ |
86c76c7b | 10097 | |
b25116a9 AM |
10098 | case R_PPC64_REL14: |
10099 | max_br_offset = 1 << 15; | |
10100 | /* Fall thru. */ | |
5bd4f169 | 10101 | |
65f38f15 | 10102 | case R_PPC64_REL24: |
ad8e1ba5 AM |
10103 | /* Calls to functions with a different TOC, such as calls to |
10104 | shared objects, need to alter the TOC pointer. This is | |
10105 | done using a linkage stub. A REL24 branching to these | |
10106 | linkage stubs needs to be followed by a nop, as the nop | |
10107 | will be replaced with an instruction to restore the TOC | |
10108 | base pointer. */ | |
b25116a9 | 10109 | stub_entry = NULL; |
8387904d | 10110 | fdh = h; |
ad8e1ba5 | 10111 | if (((h != NULL |
039b3fef AM |
10112 | && (((fdh = h->oh) != NULL |
10113 | && fdh->elf.plt.plist != NULL) | |
10114 | || (fdh = h)->elf.plt.plist != NULL)) | |
8387904d | 10115 | || (sec != NULL |
ad8e1ba5 | 10116 | && sec->output_section != NULL |
b25116a9 | 10117 | && sec->id <= htab->top_id |
ad8e1ba5 AM |
10118 | && (htab->stub_group[sec->id].toc_off |
10119 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 10120 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
10121 | rel, htab)) != NULL |
10122 | && (stub_entry->stub_type == ppc_stub_plt_call | |
10123 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
10124 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 10125 | { |
b25116a9 | 10126 | bfd_boolean can_plt_call = FALSE; |
721956f4 | 10127 | |
eea6121a | 10128 | if (rel->r_offset + 8 <= input_section->size) |
41bd81ab | 10129 | { |
b25116a9 AM |
10130 | unsigned long nop; |
10131 | nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
10132 | if (nop == NOP | |
10133 | || nop == CROR_151515 || nop == CROR_313131) | |
41bd81ab | 10134 | { |
4ce794b7 | 10135 | bfd_put_32 (input_bfd, LD_R2_40R1, |
411e1bfb | 10136 | contents + rel->r_offset + 4); |
b25116a9 | 10137 | can_plt_call = TRUE; |
41bd81ab | 10138 | } |
5bd4f169 | 10139 | } |
721956f4 AM |
10140 | |
10141 | if (!can_plt_call) | |
10142 | { | |
ad8e1ba5 AM |
10143 | if (stub_entry->stub_type == ppc_stub_plt_call) |
10144 | { | |
10145 | /* If this is a plain branch rather than a branch | |
4fa1c237 AM |
10146 | and link, don't require a nop. However, don't |
10147 | allow tail calls in a shared library as they | |
10148 | will result in r2 being corrupted. */ | |
b25116a9 AM |
10149 | unsigned long br; |
10150 | br = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4fa1c237 | 10151 | if (info->executable && (br & 1) == 0) |
b25116a9 | 10152 | can_plt_call = TRUE; |
15b552e9 AM |
10153 | else |
10154 | stub_entry = NULL; | |
ad8e1ba5 | 10155 | } |
6ab189d5 | 10156 | else if (h != NULL |
039b3fef | 10157 | && strcmp (h->elf.root.root.string, |
6ab189d5 AM |
10158 | ".__libc_start_main") == 0) |
10159 | { | |
10160 | /* Allow crt1 branch to go via a toc adjusting stub. */ | |
b25116a9 | 10161 | can_plt_call = TRUE; |
6ab189d5 | 10162 | } |
ad8e1ba5 AM |
10163 | else |
10164 | { | |
10165 | if (strcmp (input_section->output_section->name, | |
10166 | ".init") == 0 | |
10167 | || strcmp (input_section->output_section->name, | |
10168 | ".fini") == 0) | |
10169 | (*_bfd_error_handler) | |
d003868e | 10170 | (_("%B(%A+0x%lx): automatic multiple TOCs " |
ad8e1ba5 AM |
10171 | "not supported using your crt files; " |
10172 | "recompile with -mminimal-toc or upgrade gcc"), | |
d003868e AM |
10173 | input_bfd, |
10174 | input_section, | |
ad8e1ba5 AM |
10175 | (long) rel->r_offset); |
10176 | else | |
10177 | (*_bfd_error_handler) | |
d003868e | 10178 | (_("%B(%A+0x%lx): sibling call optimization to `%s' " |
ad8e1ba5 AM |
10179 | "does not allow automatic multiple TOCs; " |
10180 | "recompile with -mminimal-toc or " | |
10181 | "-fno-optimize-sibling-calls, " | |
10182 | "or make `%s' extern"), | |
d003868e AM |
10183 | input_bfd, |
10184 | input_section, | |
ad8e1ba5 AM |
10185 | (long) rel->r_offset, |
10186 | sym_name, | |
10187 | sym_name); | |
10188 | bfd_set_error (bfd_error_bad_value); | |
10189 | ret = FALSE; | |
10190 | } | |
721956f4 AM |
10191 | } |
10192 | ||
b25116a9 AM |
10193 | if (can_plt_call |
10194 | && stub_entry->stub_type == ppc_stub_plt_call) | |
10195 | unresolved_reloc = FALSE; | |
10196 | } | |
10197 | ||
8387904d AM |
10198 | if (stub_entry == NULL |
10199 | && get_opd_info (sec) != NULL) | |
10200 | { | |
10201 | /* The branch destination is the value of the opd entry. */ | |
4cc603a5 AM |
10202 | bfd_vma off = (relocation + addend |
10203 | - sec->output_section->vma | |
10204 | - sec->output_offset); | |
8387904d AM |
10205 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL); |
10206 | if (dest != (bfd_vma) -1) | |
10207 | { | |
10208 | relocation = dest; | |
10209 | addend = 0; | |
10210 | } | |
10211 | } | |
10212 | ||
b25116a9 AM |
10213 | /* If the branch is out of reach we ought to have a long |
10214 | branch stub. */ | |
10215 | from = (rel->r_offset | |
10216 | + input_section->output_offset | |
10217 | + input_section->output_section->vma); | |
10218 | ||
10219 | if (stub_entry == NULL | |
4cc603a5 | 10220 | && (relocation + addend - from + max_br_offset |
b25116a9 AM |
10221 | >= 2 * max_br_offset) |
10222 | && r_type != R_PPC64_ADDR14_BRTAKEN | |
10223 | && r_type != R_PPC64_ADDR14_BRNTAKEN) | |
039b3fef AM |
10224 | stub_entry = ppc_get_stub_entry (input_section, sec, h, rel, |
10225 | htab); | |
b25116a9 AM |
10226 | |
10227 | if (stub_entry != NULL) | |
10228 | { | |
10229 | /* Munge up the value and addend so that we call the stub | |
10230 | rather than the procedure directly. */ | |
10231 | relocation = (stub_entry->stub_offset | |
10232 | + stub_entry->stub_sec->output_offset | |
10233 | + stub_entry->stub_sec->output_section->vma); | |
10234 | addend = 0; | |
10235 | } | |
10236 | ||
10237 | if (insn != 0) | |
10238 | { | |
10239 | if (is_power4) | |
721956f4 | 10240 | { |
b25116a9 AM |
10241 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
10242 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
10243 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
10244 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
10245 | insn |= 0x02 << 21; | |
10246 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
10247 | insn |= 0x08 << 21; | |
10248 | else | |
10249 | break; | |
10250 | } | |
10251 | else | |
10252 | { | |
10253 | /* Invert 'y' bit if not the default. */ | |
4cc603a5 | 10254 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
b25116a9 | 10255 | insn ^= 0x01 << 21; |
721956f4 | 10256 | } |
b25116a9 AM |
10257 | |
10258 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
5bd4f169 | 10259 | } |
e86ce104 | 10260 | |
06da1e8e AM |
10261 | /* NOP out calls to undefined weak functions. |
10262 | We can thus call a weak function without first | |
10263 | checking whether the function is defined. */ | |
b25116a9 | 10264 | else if (h != NULL |
039b3fef | 10265 | && h->elf.root.type == bfd_link_hash_undefweak |
b25116a9 AM |
10266 | && r_type == R_PPC64_REL24 |
10267 | && relocation == 0 | |
4cc603a5 | 10268 | && addend == 0) |
e86ce104 | 10269 | { |
06da1e8e AM |
10270 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
10271 | continue; | |
e86ce104 | 10272 | } |
65f38f15 AM |
10273 | break; |
10274 | } | |
5bd4f169 | 10275 | |
65f38f15 | 10276 | /* Set `addend'. */ |
411e1bfb | 10277 | tls_type = 0; |
65f38f15 AM |
10278 | switch (r_type) |
10279 | { | |
10280 | default: | |
10281 | (*_bfd_error_handler) | |
d003868e AM |
10282 | (_("%B: unknown relocation type %d for symbol %s"), |
10283 | input_bfd, (int) r_type, sym_name); | |
5bd4f169 | 10284 | |
65f38f15 | 10285 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 10286 | ret = FALSE; |
65f38f15 | 10287 | continue; |
5bd4f169 | 10288 | |
65f38f15 | 10289 | case R_PPC64_NONE: |
411e1bfb | 10290 | case R_PPC64_TLS: |
04c9666a AM |
10291 | case R_PPC64_GNU_VTINHERIT: |
10292 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 10293 | continue; |
5bd4f169 AM |
10294 | |
10295 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
10296 | address in the GOT as relocation value instead of the | |
411e1bfb | 10297 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 10298 | symbol and put the symbol value there. */ |
411e1bfb AM |
10299 | case R_PPC64_GOT_TLSGD16: |
10300 | case R_PPC64_GOT_TLSGD16_LO: | |
10301 | case R_PPC64_GOT_TLSGD16_HI: | |
10302 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 10303 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
10304 | goto dogot; |
10305 | ||
10306 | case R_PPC64_GOT_TLSLD16: | |
10307 | case R_PPC64_GOT_TLSLD16_LO: | |
10308 | case R_PPC64_GOT_TLSLD16_HI: | |
10309 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 10310 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
10311 | goto dogot; |
10312 | ||
10313 | case R_PPC64_GOT_TPREL16_DS: | |
10314 | case R_PPC64_GOT_TPREL16_LO_DS: | |
10315 | case R_PPC64_GOT_TPREL16_HI: | |
10316 | case R_PPC64_GOT_TPREL16_HA: | |
10317 | tls_type = TLS_TLS | TLS_TPREL; | |
10318 | goto dogot; | |
10319 | ||
10320 | case R_PPC64_GOT_DTPREL16_DS: | |
10321 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
10322 | case R_PPC64_GOT_DTPREL16_HI: | |
10323 | case R_PPC64_GOT_DTPREL16_HA: | |
10324 | tls_type = TLS_TLS | TLS_DTPREL; | |
10325 | goto dogot; | |
10326 | ||
65f38f15 AM |
10327 | case R_PPC64_GOT16: |
10328 | case R_PPC64_GOT16_LO: | |
10329 | case R_PPC64_GOT16_HI: | |
10330 | case R_PPC64_GOT16_HA: | |
10331 | case R_PPC64_GOT16_DS: | |
10332 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 10333 | dogot: |
5bd4f169 AM |
10334 | { |
10335 | /* Relocation is to the entry for this symbol in the global | |
10336 | offset table. */ | |
e717da7e | 10337 | asection *got; |
d881513a | 10338 | bfd_vma *offp; |
5bd4f169 | 10339 | bfd_vma off; |
d881513a | 10340 | unsigned long indx = 0; |
65f38f15 | 10341 | |
d881513a AM |
10342 | if (tls_type == (TLS_TLS | TLS_LD) |
10343 | && (h == NULL | |
f5385ebf | 10344 | || !h->elf.def_dynamic)) |
e717da7e | 10345 | offp = &ppc64_tlsld_got (input_bfd)->offset; |
411e1bfb | 10346 | else |
5bd4f169 | 10347 | { |
d881513a | 10348 | struct got_entry *ent; |
5bd4f169 | 10349 | |
d881513a AM |
10350 | if (h != NULL) |
10351 | { | |
10352 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
039b3fef AM |
10353 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
10354 | &h->elf) | |
d881513a | 10355 | || (info->shared |
039b3fef | 10356 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
d881513a AM |
10357 | /* This is actually a static link, or it is a |
10358 | -Bsymbolic link and the symbol is defined | |
10359 | locally, or the symbol was forced to be local | |
10360 | because of a version file. */ | |
10361 | ; | |
10362 | else | |
10363 | { | |
039b3fef | 10364 | indx = h->elf.dynindx; |
d881513a AM |
10365 | unresolved_reloc = FALSE; |
10366 | } | |
039b3fef | 10367 | ent = h->elf.got.glist; |
d881513a | 10368 | } |
411e1bfb | 10369 | else |
5bd4f169 | 10370 | { |
d881513a AM |
10371 | if (local_got_ents == NULL) |
10372 | abort (); | |
10373 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 10374 | } |
d881513a AM |
10375 | |
10376 | for (; ent != NULL; ent = ent->next) | |
4cc603a5 | 10377 | if (ent->addend == orig_addend |
e717da7e | 10378 | && ent->owner == input_bfd |
d881513a AM |
10379 | && ent->tls_type == tls_type) |
10380 | break; | |
10381 | if (ent == NULL) | |
10382 | abort (); | |
10383 | offp = &ent->got.offset; | |
5bd4f169 | 10384 | } |
411e1bfb | 10385 | |
e717da7e AM |
10386 | got = ppc64_elf_tdata (input_bfd)->got; |
10387 | if (got == NULL) | |
10388 | abort (); | |
10389 | ||
411e1bfb AM |
10390 | /* The offset must always be a multiple of 8. We use the |
10391 | least significant bit to record whether we have already | |
10392 | processed this entry. */ | |
d881513a | 10393 | off = *offp; |
411e1bfb AM |
10394 | if ((off & 1) != 0) |
10395 | off &= ~1; | |
5bd4f169 AM |
10396 | else |
10397 | { | |
411e1bfb AM |
10398 | /* Generate relocs for the dynamic linker, except in |
10399 | the case of TLSLD where we'll use one entry per | |
10400 | module. */ | |
e717da7e AM |
10401 | asection *relgot = ppc64_elf_tdata (input_bfd)->relgot; |
10402 | ||
d881513a | 10403 | *offp = off | 1; |
4e795f50 AM |
10404 | if ((info->shared || indx != 0) |
10405 | && (h == NULL | |
039b3fef AM |
10406 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
10407 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 10408 | { |
e717da7e AM |
10409 | outrel.r_offset = (got->output_section->vma |
10410 | + got->output_offset | |
411e1bfb | 10411 | + off); |
4cc603a5 | 10412 | outrel.r_addend = addend; |
d881513a | 10413 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 10414 | { |
411e1bfb | 10415 | outrel.r_addend = 0; |
e515b051 | 10416 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
10417 | if (tls_type == (TLS_TLS | TLS_GD)) |
10418 | { | |
e717da7e AM |
10419 | loc = relgot->contents; |
10420 | loc += (relgot->reloc_count++ | |
d881513a AM |
10421 | * sizeof (Elf64_External_Rela)); |
10422 | bfd_elf64_swap_reloca_out (output_bfd, | |
10423 | &outrel, loc); | |
e515b051 | 10424 | outrel.r_offset += 8; |
4cc603a5 | 10425 | outrel.r_addend = addend; |
d881513a AM |
10426 | outrel.r_info |
10427 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 10428 | } |
411e1bfb | 10429 | } |
951fd09b | 10430 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 10431 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 10432 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
10433 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
10434 | else if (indx == 0) | |
81407a69 AM |
10435 | { |
10436 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
10437 | ||
10438 | /* Write the .got section contents for the sake | |
10439 | of prelink. */ | |
e717da7e | 10440 | loc = got->contents + off; |
23fbd6fa JJ |
10441 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
10442 | loc); | |
81407a69 | 10443 | } |
411e1bfb AM |
10444 | else |
10445 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
10446 | |
10447 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
10448 | { |
10449 | outrel.r_addend += relocation; | |
10450 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 10451 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 10452 | } |
e717da7e AM |
10453 | loc = relgot->contents; |
10454 | loc += (relgot->reloc_count++ | |
411e1bfb AM |
10455 | * sizeof (Elf64_External_Rela)); |
10456 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
10457 | } | |
10458 | ||
ad8e1ba5 | 10459 | /* Init the .got section contents here if we're not |
81407a69 | 10460 | emitting a reloc. */ |
d881513a | 10461 | else |
411e1bfb | 10462 | { |
4cc603a5 | 10463 | relocation += addend; |
7b609f53 AM |
10464 | if (tls_type == (TLS_TLS | TLS_LD)) |
10465 | relocation = 1; | |
10466 | else if (tls_type != 0) | |
411e1bfb | 10467 | { |
e1918d23 | 10468 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 10469 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 10470 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 10471 | |
7b609f53 AM |
10472 | if (tls_type == (TLS_TLS | TLS_GD)) |
10473 | { | |
10474 | bfd_put_64 (output_bfd, relocation, | |
e717da7e | 10475 | got->contents + off + 8); |
7b609f53 AM |
10476 | relocation = 1; |
10477 | } | |
411e1bfb | 10478 | } |
7b609f53 | 10479 | |
411e1bfb | 10480 | bfd_put_64 (output_bfd, relocation, |
e717da7e | 10481 | got->contents + off); |
5bd4f169 AM |
10482 | } |
10483 | } | |
10484 | ||
65f38f15 AM |
10485 | if (off >= (bfd_vma) -2) |
10486 | abort (); | |
10487 | ||
e717da7e | 10488 | relocation = got->output_offset + off; |
65f38f15 | 10489 | |
5bd4f169 | 10490 | /* TOC base (r2) is TOC start plus 0x8000. */ |
e717da7e | 10491 | addend = -TOC_BASE_OFF; |
5bd4f169 | 10492 | } |
65f38f15 AM |
10493 | break; |
10494 | ||
10495 | case R_PPC64_PLT16_HA: | |
10496 | case R_PPC64_PLT16_HI: | |
10497 | case R_PPC64_PLT16_LO: | |
10498 | case R_PPC64_PLT32: | |
10499 | case R_PPC64_PLT64: | |
10500 | /* Relocation is to the entry for this symbol in the | |
10501 | procedure linkage table. */ | |
10502 | ||
10503 | /* Resolve a PLT reloc against a local symbol directly, | |
10504 | without using the procedure linkage table. */ | |
10505 | if (h == NULL) | |
10506 | break; | |
10507 | ||
411e1bfb AM |
10508 | /* It's possible that we didn't make a PLT entry for this |
10509 | symbol. This happens when statically linking PIC code, | |
10510 | or when using -Bsymbolic. Go find a match if there is a | |
10511 | PLT entry. */ | |
4ce794b7 | 10512 | if (htab->plt != NULL) |
65f38f15 | 10513 | { |
411e1bfb | 10514 | struct plt_entry *ent; |
039b3fef | 10515 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
4cc603a5 | 10516 | if (ent->addend == orig_addend |
411e1bfb AM |
10517 | && ent->plt.offset != (bfd_vma) -1) |
10518 | { | |
4ce794b7 AM |
10519 | relocation = (htab->plt->output_section->vma |
10520 | + htab->plt->output_offset | |
411e1bfb AM |
10521 | + ent->plt.offset); |
10522 | unresolved_reloc = FALSE; | |
10523 | } | |
65f38f15 | 10524 | } |
65f38f15 | 10525 | break; |
5bd4f169 | 10526 | |
0b13192e AM |
10527 | case R_PPC64_TOC: |
10528 | /* Relocation value is TOC base. */ | |
10529 | relocation = TOCstart; | |
10530 | if (r_symndx == 0) | |
10531 | relocation += htab->stub_group[input_section->id].toc_off; | |
8517fae7 AM |
10532 | else if (unresolved_reloc) |
10533 | ; | |
10534 | else if (sec != NULL && sec->id <= htab->top_id) | |
0b13192e AM |
10535 | relocation += htab->stub_group[sec->id].toc_off; |
10536 | else | |
10537 | unresolved_reloc = TRUE; | |
10538 | goto dodyn2; | |
10539 | ||
5bd4f169 AM |
10540 | /* TOC16 relocs. We want the offset relative to the TOC base, |
10541 | which is the address of the start of the TOC plus 0x8000. | |
10542 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
10543 | in this order. */ | |
65f38f15 AM |
10544 | case R_PPC64_TOC16: |
10545 | case R_PPC64_TOC16_LO: | |
10546 | case R_PPC64_TOC16_HI: | |
10547 | case R_PPC64_TOC16_DS: | |
10548 | case R_PPC64_TOC16_LO_DS: | |
10549 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 10550 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
10551 | break; |
10552 | ||
10553 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
10554 | case R_PPC64_SECTOFF: |
10555 | case R_PPC64_SECTOFF_LO: | |
10556 | case R_PPC64_SECTOFF_HI: | |
10557 | case R_PPC64_SECTOFF_DS: | |
10558 | case R_PPC64_SECTOFF_LO_DS: | |
10559 | case R_PPC64_SECTOFF_HA: | |
4ce794b7 | 10560 | if (sec != NULL) |
65f38f15 | 10561 | addend -= sec->output_section->vma; |
5bd4f169 AM |
10562 | break; |
10563 | ||
721956f4 AM |
10564 | case R_PPC64_REL14: |
10565 | case R_PPC64_REL14_BRNTAKEN: | |
10566 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
10567 | case R_PPC64_REL24: |
10568 | break; | |
10569 | ||
411e1bfb AM |
10570 | case R_PPC64_TPREL16: |
10571 | case R_PPC64_TPREL16_LO: | |
10572 | case R_PPC64_TPREL16_HI: | |
10573 | case R_PPC64_TPREL16_HA: | |
10574 | case R_PPC64_TPREL16_DS: | |
10575 | case R_PPC64_TPREL16_LO_DS: | |
10576 | case R_PPC64_TPREL16_HIGHER: | |
10577 | case R_PPC64_TPREL16_HIGHERA: | |
10578 | case R_PPC64_TPREL16_HIGHEST: | |
10579 | case R_PPC64_TPREL16_HIGHESTA: | |
e1918d23 | 10580 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
10581 | if (info->shared) |
10582 | /* The TPREL16 relocs shouldn't really be used in shared | |
10583 | libs as they will result in DT_TEXTREL being set, but | |
10584 | support them anyway. */ | |
10585 | goto dodyn; | |
10586 | break; | |
10587 | ||
10588 | case R_PPC64_DTPREL16: | |
10589 | case R_PPC64_DTPREL16_LO: | |
10590 | case R_PPC64_DTPREL16_HI: | |
10591 | case R_PPC64_DTPREL16_HA: | |
10592 | case R_PPC64_DTPREL16_DS: | |
10593 | case R_PPC64_DTPREL16_LO_DS: | |
10594 | case R_PPC64_DTPREL16_HIGHER: | |
10595 | case R_PPC64_DTPREL16_HIGHERA: | |
10596 | case R_PPC64_DTPREL16_HIGHEST: | |
10597 | case R_PPC64_DTPREL16_HIGHESTA: | |
e1918d23 | 10598 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
10599 | break; |
10600 | ||
e515b051 AM |
10601 | case R_PPC64_DTPMOD64: |
10602 | relocation = 1; | |
10603 | addend = 0; | |
10604 | goto dodyn; | |
10605 | ||
411e1bfb | 10606 | case R_PPC64_TPREL64: |
e1918d23 | 10607 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
10608 | goto dodyn; |
10609 | ||
10610 | case R_PPC64_DTPREL64: | |
e1918d23 | 10611 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
10612 | /* Fall thru */ |
10613 | ||
65f38f15 AM |
10614 | /* Relocations that may need to be propagated if this is a |
10615 | dynamic object. */ | |
04c9666a | 10616 | case R_PPC64_REL30: |
65f38f15 AM |
10617 | case R_PPC64_REL32: |
10618 | case R_PPC64_REL64: | |
10619 | case R_PPC64_ADDR14: | |
10620 | case R_PPC64_ADDR14_BRNTAKEN: | |
10621 | case R_PPC64_ADDR14_BRTAKEN: | |
10622 | case R_PPC64_ADDR16: | |
10623 | case R_PPC64_ADDR16_DS: | |
10624 | case R_PPC64_ADDR16_HA: | |
10625 | case R_PPC64_ADDR16_HI: | |
10626 | case R_PPC64_ADDR16_HIGHER: | |
10627 | case R_PPC64_ADDR16_HIGHERA: | |
10628 | case R_PPC64_ADDR16_HIGHEST: | |
10629 | case R_PPC64_ADDR16_HIGHESTA: | |
10630 | case R_PPC64_ADDR16_LO: | |
10631 | case R_PPC64_ADDR16_LO_DS: | |
10632 | case R_PPC64_ADDR24: | |
65f38f15 AM |
10633 | case R_PPC64_ADDR32: |
10634 | case R_PPC64_ADDR64: | |
10635 | case R_PPC64_UADDR16: | |
10636 | case R_PPC64_UADDR32: | |
10637 | case R_PPC64_UADDR64: | |
ec338859 AM |
10638 | /* r_symndx will be zero only for relocs against symbols |
10639 | from removed linkonce sections, or sections discarded by | |
10640 | a linker script. */ | |
411e1bfb | 10641 | dodyn: |
5d1634d7 AM |
10642 | if (r_symndx == 0) |
10643 | break; | |
10644 | /* Fall thru. */ | |
10645 | ||
0b13192e | 10646 | dodyn2: |
5d1634d7 | 10647 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
10648 | break; |
10649 | ||
41bd81ab AM |
10650 | if (NO_OPD_RELOCS && is_opd) |
10651 | break; | |
10652 | ||
65f38f15 | 10653 | if ((info->shared |
4e795f50 | 10654 | && (h == NULL |
039b3fef AM |
10655 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
10656 | || h->elf.root.type != bfd_link_hash_undefweak) | |
411e1bfb | 10657 | && (MUST_BE_DYN_RELOC (r_type) |
039b3fef | 10658 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
f4656909 AM |
10659 | || (ELIMINATE_COPY_RELOCS |
10660 | && !info->shared | |
65f38f15 | 10661 | && h != NULL |
039b3fef | 10662 | && h->elf.dynindx != -1 |
f5385ebf AM |
10663 | && !h->elf.non_got_ref |
10664 | && h->elf.def_dynamic | |
10665 | && !h->elf.def_regular)) | |
65f38f15 AM |
10666 | { |
10667 | Elf_Internal_Rela outrel; | |
b34976b6 | 10668 | bfd_boolean skip, relocate; |
65f38f15 | 10669 | asection *sreloc; |
947216bf | 10670 | bfd_byte *loc; |
1cf1f670 | 10671 | bfd_vma out_off; |
65f38f15 AM |
10672 | |
10673 | /* When generating a dynamic object, these relocations | |
10674 | are copied into the output file to be resolved at run | |
10675 | time. */ | |
10676 | ||
b34976b6 AM |
10677 | skip = FALSE; |
10678 | relocate = FALSE; | |
65f38f15 | 10679 | |
1cf1f670 AM |
10680 | out_off = _bfd_elf_section_offset (output_bfd, info, |
10681 | input_section, rel->r_offset); | |
10682 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 10683 | skip = TRUE; |
1cf1f670 | 10684 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 10685 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
10686 | out_off += (input_section->output_section->vma |
10687 | + input_section->output_offset); | |
10688 | outrel.r_offset = out_off; | |
411e1bfb | 10689 | outrel.r_addend = rel->r_addend; |
65f38f15 | 10690 | |
1cf1f670 AM |
10691 | /* Optimize unaligned reloc use. */ |
10692 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
10693 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
10694 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
10695 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
10696 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
10697 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
10698 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
10699 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
10700 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
10701 | ||
65f38f15 | 10702 | if (skip) |
0bb2d96a | 10703 | memset (&outrel, 0, sizeof outrel); |
039b3fef | 10704 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
0b13192e AM |
10705 | && !is_opd |
10706 | && r_type != R_PPC64_TOC) | |
039b3fef | 10707 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); |
65f38f15 AM |
10708 | else |
10709 | { | |
41bd81ab AM |
10710 | /* This symbol is local, or marked to become local, |
10711 | or this is an opd section reloc which must point | |
10712 | at a local function. */ | |
65f38f15 | 10713 | outrel.r_addend += relocation; |
e86ce104 | 10714 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 10715 | { |
3fad3c7c | 10716 | if (is_opd && h != NULL) |
afbe61cf AM |
10717 | { |
10718 | /* Lie about opd entries. This case occurs | |
10719 | when building shared libraries and we | |
10720 | reference a function in another shared | |
3fad3c7c AM |
10721 | lib. The same thing happens for a weak |
10722 | definition in an application that's | |
10723 | overridden by a strong definition in a | |
10724 | shared lib. (I believe this is a generic | |
10725 | bug in binutils handling of weak syms.) | |
10726 | In these cases we won't use the opd | |
1e2f5b6e | 10727 | entry in this lib. */ |
b34976b6 | 10728 | unresolved_reloc = FALSE; |
afbe61cf | 10729 | } |
65f38f15 | 10730 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
10731 | |
10732 | /* We need to relocate .opd contents for ld.so. | |
10733 | Prelink also wants simple and consistent rules | |
10734 | for relocs. This make all RELATIVE relocs have | |
10735 | *r_offset equal to r_addend. */ | |
10736 | relocate = TRUE; | |
65f38f15 AM |
10737 | } |
10738 | else | |
10739 | { | |
10740 | long indx = 0; | |
10741 | ||
41bd81ab | 10742 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
10743 | ; |
10744 | else if (sec == NULL || sec->owner == NULL) | |
10745 | { | |
10746 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 10747 | return FALSE; |
65f38f15 AM |
10748 | } |
10749 | else | |
10750 | { | |
10751 | asection *osec; | |
10752 | ||
10753 | osec = sec->output_section; | |
10754 | indx = elf_section_data (osec)->dynindx; | |
10755 | ||
10756 | /* We are turning this relocation into one | |
10757 | against a section symbol, so subtract out | |
10758 | the output section's address but not the | |
10759 | offset of the input section in the output | |
10760 | section. */ | |
10761 | outrel.r_addend -= osec->vma; | |
10762 | } | |
10763 | ||
10764 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
10765 | } | |
10766 | } | |
10767 | ||
10768 | sreloc = elf_section_data (input_section)->sreloc; | |
10769 | if (sreloc == NULL) | |
10770 | abort (); | |
10771 | ||
dfbb6ac9 AM |
10772 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
10773 | >= sreloc->size) | |
10774 | abort (); | |
947216bf AM |
10775 | loc = sreloc->contents; |
10776 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
10777 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
10778 | ||
10779 | /* If this reloc is against an external symbol, it will | |
10780 | be computed at runtime, so there's no need to do | |
81407a69 AM |
10781 | anything now. However, for the sake of prelink ensure |
10782 | that the section contents are a known value. */ | |
65f38f15 | 10783 | if (! relocate) |
81407a69 AM |
10784 | { |
10785 | unresolved_reloc = FALSE; | |
10786 | /* The value chosen here is quite arbitrary as ld.so | |
10787 | ignores section contents except for the special | |
10788 | case of .opd where the contents might be accessed | |
10789 | before relocation. Choose zero, as that won't | |
10790 | cause reloc overflow. */ | |
10791 | relocation = 0; | |
10792 | addend = 0; | |
10793 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
10794 | to improve backward compatibility with older | |
10795 | versions of ld. */ | |
10796 | if (r_type == R_PPC64_ADDR64) | |
10797 | addend = outrel.r_addend; | |
10798 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
4ce794b7 | 10799 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
000732f7 AM |
10800 | addend = (input_section->output_section->vma |
10801 | + input_section->output_offset | |
10802 | + rel->r_offset); | |
81407a69 | 10803 | } |
65f38f15 | 10804 | } |
5bd4f169 AM |
10805 | break; |
10806 | ||
65f38f15 AM |
10807 | case R_PPC64_COPY: |
10808 | case R_PPC64_GLOB_DAT: | |
10809 | case R_PPC64_JMP_SLOT: | |
10810 | case R_PPC64_RELATIVE: | |
10811 | /* We shouldn't ever see these dynamic relocs in relocatable | |
10812 | files. */ | |
ae9a127f | 10813 | /* Fall through. */ |
65f38f15 AM |
10814 | |
10815 | case R_PPC64_PLTGOT16: | |
10816 | case R_PPC64_PLTGOT16_DS: | |
10817 | case R_PPC64_PLTGOT16_HA: | |
10818 | case R_PPC64_PLTGOT16_HI: | |
10819 | case R_PPC64_PLTGOT16_LO: | |
10820 | case R_PPC64_PLTGOT16_LO_DS: | |
10821 | case R_PPC64_PLTREL32: | |
10822 | case R_PPC64_PLTREL64: | |
10823 | /* These ones haven't been implemented yet. */ | |
10824 | ||
10825 | (*_bfd_error_handler) | |
d003868e AM |
10826 | (_("%B: relocation %s is not supported for symbol %s."), |
10827 | input_bfd, | |
4ce794b7 | 10828 | ppc64_elf_howto_table[r_type]->name, sym_name); |
5bd4f169 AM |
10829 | |
10830 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 10831 | ret = FALSE; |
5bd4f169 | 10832 | continue; |
65f38f15 | 10833 | } |
5bd4f169 | 10834 | |
65f38f15 AM |
10835 | /* Do any further special processing. */ |
10836 | switch (r_type) | |
10837 | { | |
10838 | default: | |
10839 | break; | |
10840 | ||
10841 | case R_PPC64_ADDR16_HA: | |
10842 | case R_PPC64_ADDR16_HIGHERA: | |
10843 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
10844 | case R_PPC64_GOT16_HA: |
10845 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
10846 | case R_PPC64_PLT16_HA: |
10847 | case R_PPC64_TOC16_HA: | |
10848 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
10849 | case R_PPC64_TPREL16_HA: |
10850 | case R_PPC64_DTPREL16_HA: | |
10851 | case R_PPC64_GOT_TLSGD16_HA: | |
10852 | case R_PPC64_GOT_TLSLD16_HA: | |
10853 | case R_PPC64_GOT_TPREL16_HA: | |
10854 | case R_PPC64_GOT_DTPREL16_HA: | |
10855 | case R_PPC64_TPREL16_HIGHER: | |
10856 | case R_PPC64_TPREL16_HIGHERA: | |
10857 | case R_PPC64_TPREL16_HIGHEST: | |
10858 | case R_PPC64_TPREL16_HIGHESTA: | |
10859 | case R_PPC64_DTPREL16_HIGHER: | |
10860 | case R_PPC64_DTPREL16_HIGHERA: | |
10861 | case R_PPC64_DTPREL16_HIGHEST: | |
10862 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
10863 | /* It's just possible that this symbol is a weak symbol |
10864 | that's not actually defined anywhere. In that case, | |
10865 | 'sec' would be NULL, and we should leave the symbol | |
10866 | alone (it will be set to zero elsewhere in the link). */ | |
10867 | if (sec != NULL) | |
e515b051 AM |
10868 | /* Add 0x10000 if sign bit in 0:15 is set. |
10869 | Bits 0:15 are not used. */ | |
10870 | addend += 0x8000; | |
65f38f15 AM |
10871 | break; |
10872 | ||
10873 | case R_PPC64_ADDR16_DS: | |
10874 | case R_PPC64_ADDR16_LO_DS: | |
10875 | case R_PPC64_GOT16_DS: | |
10876 | case R_PPC64_GOT16_LO_DS: | |
10877 | case R_PPC64_PLT16_LO_DS: | |
10878 | case R_PPC64_SECTOFF_DS: | |
10879 | case R_PPC64_SECTOFF_LO_DS: | |
10880 | case R_PPC64_TOC16_DS: | |
10881 | case R_PPC64_TOC16_LO_DS: | |
10882 | case R_PPC64_PLTGOT16_DS: | |
10883 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
10884 | case R_PPC64_GOT_TPREL16_DS: |
10885 | case R_PPC64_GOT_TPREL16_LO_DS: | |
10886 | case R_PPC64_GOT_DTPREL16_DS: | |
10887 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
10888 | case R_PPC64_TPREL16_DS: | |
10889 | case R_PPC64_TPREL16_LO_DS: | |
10890 | case R_PPC64_DTPREL16_DS: | |
10891 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
10892 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
10893 | mask = 3; | |
10894 | /* If this reloc is against an lq insn, then the value must be | |
10895 | a multiple of 16. This is somewhat of a hack, but the | |
10896 | "correct" way to do this by defining _DQ forms of all the | |
10897 | _DS relocs bloats all reloc switches in this file. It | |
10898 | doesn't seem to make much sense to use any of these relocs | |
10899 | in data, so testing the insn should be safe. */ | |
494dac0c | 10900 | if ((insn & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
10901 | mask = 15; |
10902 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
10903 | { |
10904 | (*_bfd_error_handler) | |
d003868e AM |
10905 | (_("%B: error: relocation %s not a multiple of %d"), |
10906 | input_bfd, | |
4ce794b7 | 10907 | ppc64_elf_howto_table[r_type]->name, |
adadcc0c | 10908 | mask + 1); |
65f38f15 | 10909 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 10910 | ret = FALSE; |
65f38f15 AM |
10911 | continue; |
10912 | } | |
10913 | break; | |
5bd4f169 AM |
10914 | } |
10915 | ||
239e1f3a AM |
10916 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
10917 | because such sections are not SEC_ALLOC and thus ld.so will | |
10918 | not process them. */ | |
65f38f15 | 10919 | if (unresolved_reloc |
239e1f3a | 10920 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 10921 | && h->elf.def_dynamic)) |
9c07fe7c AM |
10922 | { |
10923 | (*_bfd_error_handler) | |
d003868e AM |
10924 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
10925 | input_bfd, | |
10926 | input_section, | |
9c07fe7c | 10927 | (long) rel->r_offset, |
7b609f53 | 10928 | ppc64_elf_howto_table[(int) r_type]->name, |
039b3fef | 10929 | h->elf.root.root.string); |
b34976b6 | 10930 | ret = FALSE; |
9c07fe7c | 10931 | } |
5bd4f169 | 10932 | |
65f38f15 | 10933 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
10934 | input_bfd, |
10935 | input_section, | |
10936 | contents, | |
411e1bfb | 10937 | rel->r_offset, |
5bd4f169 AM |
10938 | relocation, |
10939 | addend); | |
10940 | ||
ef60b7ff | 10941 | if (r != bfd_reloc_ok) |
5bd4f169 | 10942 | { |
cd27b276 AM |
10943 | if (sym_name == NULL) |
10944 | sym_name = "(null)"; | |
10945 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 10946 | { |
cd27b276 AM |
10947 | if (warned) |
10948 | continue; | |
10949 | if (h != NULL | |
039b3fef | 10950 | && h->elf.root.type == bfd_link_hash_undefweak |
4ce794b7 | 10951 | && ppc64_elf_howto_table[r_type]->pc_relative) |
5bd4f169 AM |
10952 | { |
10953 | /* Assume this is a call protected by other code that | |
10954 | detects the symbol is undefined. If this is the case, | |
10955 | we can safely ignore the overflow. If not, the | |
10956 | program is hosed anyway, and a little warning isn't | |
10957 | going to help. */ | |
10958 | ||
10959 | continue; | |
10960 | } | |
10961 | ||
ef60b7ff | 10962 | if (!((*info->callbacks->reloc_overflow) |
dfeffb9f L |
10963 | (info, (h ? &h->elf.root : NULL), sym_name, |
10964 | ppc64_elf_howto_table[r_type]->name, | |
4cc603a5 | 10965 | orig_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 10966 | return FALSE; |
ef60b7ff AM |
10967 | } |
10968 | else | |
10969 | { | |
10970 | (*_bfd_error_handler) | |
d003868e AM |
10971 | (_("%B(%A+0x%lx): %s reloc against `%s': error %d"), |
10972 | input_bfd, | |
10973 | input_section, | |
7b609f53 | 10974 | (long) rel->r_offset, |
4ce794b7 | 10975 | ppc64_elf_howto_table[r_type]->name, |
7b609f53 AM |
10976 | sym_name, |
10977 | (int) r); | |
b34976b6 | 10978 | ret = FALSE; |
ef60b7ff | 10979 | } |
5bd4f169 | 10980 | } |
5bd4f169 AM |
10981 | } |
10982 | ||
645ea6a9 AM |
10983 | /* If we're emitting relocations, then shortly after this function |
10984 | returns, reloc offsets and addends for this section will be | |
10985 | adjusted. Worse, reloc symbol indices will be for the output | |
8860955f AM |
10986 | file rather than the input. Save a copy of the relocs for |
10987 | opd_entry_value. */ | |
4cc603a5 | 10988 | if (is_opd && (info->emitrelocations || info->relocatable)) |
8860955f AM |
10989 | { |
10990 | bfd_size_type amt; | |
10991 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
10992 | rel = bfd_alloc (input_bfd, amt); | |
10993 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL); | |
10994 | ppc64_elf_tdata (input_bfd)->opd_relocs = rel; | |
10995 | if (rel == NULL) | |
10996 | return FALSE; | |
10997 | memcpy (rel, relocs, amt); | |
10998 | } | |
5bd4f169 AM |
10999 | return ret; |
11000 | } | |
11001 | ||
754021d0 AM |
11002 | /* Adjust the value of any local symbols in opd sections. */ |
11003 | ||
11004 | static bfd_boolean | |
11005 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, | |
11006 | const char *name ATTRIBUTE_UNUSED, | |
11007 | Elf_Internal_Sym *elfsym, | |
11008 | asection *input_sec, | |
11009 | struct elf_link_hash_entry *h) | |
11010 | { | |
4025353c | 11011 | long *opd_adjust, adjust; |
754021d0 AM |
11012 | bfd_vma value; |
11013 | ||
4025353c AM |
11014 | if (h != NULL) |
11015 | return TRUE; | |
11016 | ||
11017 | opd_adjust = get_opd_info (input_sec); | |
11018 | if (opd_adjust == NULL) | |
754021d0 AM |
11019 | return TRUE; |
11020 | ||
11021 | value = elfsym->st_value - input_sec->output_offset; | |
11022 | if (!info->relocatable) | |
11023 | value -= input_sec->output_section->vma; | |
11024 | ||
3f764659 | 11025 | adjust = opd_adjust[value / 8]; |
4025353c AM |
11026 | if (adjust == -1) |
11027 | elfsym->st_value = 0; | |
11028 | else | |
11029 | elfsym->st_value += adjust; | |
754021d0 AM |
11030 | return TRUE; |
11031 | } | |
11032 | ||
5bd4f169 AM |
11033 | /* Finish up dynamic symbol handling. We set the contents of various |
11034 | dynamic sections here. */ | |
11035 | ||
b34976b6 | 11036 | static bfd_boolean |
4ce794b7 AM |
11037 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
11038 | struct bfd_link_info *info, | |
11039 | struct elf_link_hash_entry *h, | |
11040 | Elf_Internal_Sym *sym) | |
5bd4f169 | 11041 | { |
65f38f15 | 11042 | struct ppc_link_hash_table *htab; |
5bd4f169 | 11043 | bfd *dynobj; |
8387904d AM |
11044 | struct plt_entry *ent; |
11045 | Elf_Internal_Rela rela; | |
11046 | bfd_byte *loc; | |
5bd4f169 | 11047 | |
65f38f15 AM |
11048 | htab = ppc_hash_table (info); |
11049 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 11050 | |
8387904d AM |
11051 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
11052 | if (ent->plt.offset != (bfd_vma) -1) | |
11053 | { | |
11054 | /* This symbol has an entry in the procedure linkage | |
11055 | table. Set it up. */ | |
11056 | ||
11057 | if (htab->plt == NULL | |
11058 | || htab->relplt == NULL | |
11059 | || htab->glink == NULL) | |
11060 | abort (); | |
11061 | ||
11062 | /* Create a JMP_SLOT reloc to inform the dynamic linker to | |
11063 | fill in the PLT entry. */ | |
11064 | rela.r_offset = (htab->plt->output_section->vma | |
11065 | + htab->plt->output_offset | |
11066 | + ent->plt.offset); | |
11067 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
11068 | rela.r_addend = ent->addend; | |
11069 | ||
11070 | loc = htab->relplt->contents; | |
11071 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
11072 | * sizeof (Elf64_External_Rela)); | |
11073 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
11074 | } | |
5bd4f169 | 11075 | |
f5385ebf | 11076 | if (h->needs_copy) |
5bd4f169 | 11077 | { |
5bd4f169 | 11078 | Elf_Internal_Rela rela; |
947216bf | 11079 | bfd_byte *loc; |
5bd4f169 | 11080 | |
65f38f15 | 11081 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 11082 | |
65f38f15 AM |
11083 | if (h->dynindx == -1 |
11084 | || (h->root.type != bfd_link_hash_defined | |
11085 | && h->root.type != bfd_link_hash_defweak) | |
4ce794b7 | 11086 | || htab->relbss == NULL) |
65f38f15 | 11087 | abort (); |
5bd4f169 AM |
11088 | |
11089 | rela.r_offset = (h->root.u.def.value | |
11090 | + h->root.u.def.section->output_section->vma | |
11091 | + h->root.u.def.section->output_offset); | |
11092 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
11093 | rela.r_addend = 0; | |
4ce794b7 AM |
11094 | loc = htab->relbss->contents; |
11095 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 11096 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
11097 | } |
11098 | ||
5bd4f169 AM |
11099 | /* Mark some specially defined symbols as absolute. */ |
11100 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
11101 | sym->st_shndx = SHN_ABS; | |
11102 | ||
b34976b6 | 11103 | return TRUE; |
5bd4f169 AM |
11104 | } |
11105 | ||
65f38f15 AM |
11106 | /* Used to decide how to sort relocs in an optimal manner for the |
11107 | dynamic linker, before writing them out. */ | |
11108 | ||
11109 | static enum elf_reloc_type_class | |
4ce794b7 | 11110 | ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
65f38f15 | 11111 | { |
04c9666a | 11112 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 11113 | |
4ce794b7 | 11114 | r_type = ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 11115 | switch (r_type) |
65f38f15 AM |
11116 | { |
11117 | case R_PPC64_RELATIVE: | |
11118 | return reloc_class_relative; | |
11119 | case R_PPC64_JMP_SLOT: | |
11120 | return reloc_class_plt; | |
11121 | case R_PPC64_COPY: | |
11122 | return reloc_class_copy; | |
11123 | default: | |
11124 | return reloc_class_normal; | |
11125 | } | |
11126 | } | |
11127 | ||
5bd4f169 AM |
11128 | /* Finish up the dynamic sections. */ |
11129 | ||
b34976b6 | 11130 | static bfd_boolean |
4ce794b7 AM |
11131 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
11132 | struct bfd_link_info *info) | |
5bd4f169 | 11133 | { |
65f38f15 AM |
11134 | struct ppc_link_hash_table *htab; |
11135 | bfd *dynobj; | |
5bd4f169 | 11136 | asection *sdyn; |
5bd4f169 | 11137 | |
65f38f15 AM |
11138 | htab = ppc_hash_table (info); |
11139 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
11140 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
11141 | ||
65f38f15 | 11142 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 11143 | { |
5bd4f169 AM |
11144 | Elf64_External_Dyn *dyncon, *dynconend; |
11145 | ||
4ce794b7 | 11146 | if (sdyn == NULL || htab->got == NULL) |
65f38f15 | 11147 | abort (); |
5bd4f169 AM |
11148 | |
11149 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 11150 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
5bd4f169 AM |
11151 | for (; dyncon < dynconend; dyncon++) |
11152 | { | |
11153 | Elf_Internal_Dyn dyn; | |
19397422 | 11154 | asection *s; |
5bd4f169 AM |
11155 | |
11156 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
11157 | ||
11158 | switch (dyn.d_tag) | |
11159 | { | |
65f38f15 AM |
11160 | default: |
11161 | continue; | |
5bd4f169 | 11162 | |
5d1634d7 | 11163 | case DT_PPC64_GLINK: |
4ce794b7 | 11164 | s = htab->glink; |
6348e046 | 11165 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
ad8e1ba5 AM |
11166 | /* We stupidly defined DT_PPC64_GLINK to be the start |
11167 | of glink rather than the first entry point, which is | |
11168 | what ld.so needs, and now have a bigger stub to | |
11169 | support automatic multiple TOCs. */ | |
11170 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
11171 | break; |
11172 | ||
19397422 AM |
11173 | case DT_PPC64_OPD: |
11174 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
11175 | if (s == NULL) |
11176 | continue; | |
11177 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
11178 | break; |
11179 | ||
11180 | case DT_PPC64_OPDSZ: | |
11181 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
11182 | if (s == NULL) |
11183 | continue; | |
eea6121a | 11184 | dyn.d_un.d_val = s->size; |
19397422 AM |
11185 | break; |
11186 | ||
65f38f15 | 11187 | case DT_PLTGOT: |
4ce794b7 | 11188 | s = htab->plt; |
6348e046 | 11189 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 AM |
11190 | break; |
11191 | ||
11192 | case DT_JMPREL: | |
4ce794b7 | 11193 | s = htab->relplt; |
6348e046 | 11194 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 | 11195 | break; |
5bd4f169 | 11196 | |
65f38f15 | 11197 | case DT_PLTRELSZ: |
eea6121a | 11198 | dyn.d_un.d_val = htab->relplt->size; |
5d1634d7 AM |
11199 | break; |
11200 | ||
11201 | case DT_RELASZ: | |
11202 | /* Don't count procedure linkage table relocs in the | |
11203 | overall reloc count. */ | |
4ce794b7 | 11204 | s = htab->relplt; |
6348e046 AM |
11205 | if (s == NULL) |
11206 | continue; | |
eea6121a | 11207 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
11208 | break; |
11209 | ||
11210 | case DT_RELA: | |
11211 | /* We may not be using the standard ELF linker script. | |
11212 | If .rela.plt is the first .rela section, we adjust | |
11213 | DT_RELA to not include it. */ | |
4ce794b7 | 11214 | s = htab->relplt; |
6348e046 AM |
11215 | if (s == NULL) |
11216 | continue; | |
11217 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
11218 | continue; | |
eea6121a | 11219 | dyn.d_un.d_ptr += s->size; |
65f38f15 | 11220 | break; |
5bd4f169 | 11221 | } |
5bd4f169 | 11222 | |
65f38f15 | 11223 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 11224 | } |
5bd4f169 AM |
11225 | } |
11226 | ||
eea6121a | 11227 | if (htab->got != NULL && htab->got->size != 0) |
5d1634d7 AM |
11228 | { |
11229 | /* Fill in the first entry in the global offset table. | |
11230 | We use it to hold the link-time TOCbase. */ | |
11231 | bfd_put_64 (output_bfd, | |
60ee0d4a | 11232 | elf_gp (output_bfd) + TOC_BASE_OFF, |
4ce794b7 | 11233 | htab->got->contents); |
5d1634d7 AM |
11234 | |
11235 | /* Set .got entry size. */ | |
4ce794b7 | 11236 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
5d1634d7 AM |
11237 | } |
11238 | ||
eea6121a | 11239 | if (htab->plt != NULL && htab->plt->size != 0) |
5d1634d7 AM |
11240 | { |
11241 | /* Set .plt entry size. */ | |
4ce794b7 | 11242 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
5d1634d7 AM |
11243 | = PLT_ENTRY_SIZE; |
11244 | } | |
11245 | ||
e717da7e | 11246 | /* We need to handle writing out multiple GOT sections ourselves, |
7b53ace3 AM |
11247 | since we didn't add them to DYNOBJ. We know dynobj is the first |
11248 | bfd. */ | |
e717da7e AM |
11249 | while ((dynobj = dynobj->link_next) != NULL) |
11250 | { | |
11251 | asection *s; | |
7b53ace3 | 11252 | |
ee75fd95 | 11253 | if (!is_ppc64_elf_target (dynobj->xvec)) |
7b53ace3 AM |
11254 | continue; |
11255 | ||
e717da7e AM |
11256 | s = ppc64_elf_tdata (dynobj)->got; |
11257 | if (s != NULL | |
eea6121a | 11258 | && s->size != 0 |
e717da7e AM |
11259 | && s->output_section != bfd_abs_section_ptr |
11260 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
11261 | s->contents, s->output_offset, | |
eea6121a | 11262 | s->size)) |
e717da7e AM |
11263 | return FALSE; |
11264 | s = ppc64_elf_tdata (dynobj)->relgot; | |
11265 | if (s != NULL | |
eea6121a | 11266 | && s->size != 0 |
e717da7e AM |
11267 | && s->output_section != bfd_abs_section_ptr |
11268 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
11269 | s->contents, s->output_offset, | |
eea6121a | 11270 | s->size)) |
e717da7e AM |
11271 | return FALSE; |
11272 | } | |
f6c52c13 | 11273 | |
b34976b6 | 11274 | return TRUE; |
5bd4f169 AM |
11275 | } |
11276 | ||
5bd4f169 | 11277 | #include "elf64-target.h" |