Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
b2a8e766 AM |
2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004 |
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., | |
22 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 | |
70 | #define elf_backend_got_symbol_offset 0 | |
71 | #define elf_backend_got_header_size 8 | |
ad8e1ba5 AM |
72 | #define elf_backend_can_gc_sections 1 |
73 | #define elf_backend_can_refcount 1 | |
74 | #define elf_backend_rela_normal 1 | |
75 | ||
e717da7e | 76 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
ad8e1ba5 AM |
77 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
78 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
79 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
80 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
81 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
90e3cdf2 | 82 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
ad8e1ba5 AM |
83 | |
84 | #define elf_backend_object_p ppc64_elf_object_p | |
d37c89e5 AM |
85 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
86 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
ad8e1ba5 AM |
87 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
88 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
555cd476 | 89 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
8387904d AM |
90 | #define elf_backend_check_directives ppc64_elf_check_directives |
91 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup | |
ad8e1ba5 AM |
92 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
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 | |
99 | #define elf_backend_relocate_section ppc64_elf_relocate_section | |
100 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
101 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
102 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
754021d0 | 103 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
2f89ff8d | 104 | #define elf_backend_special_sections ppc64_elf_special_sections |
ad8e1ba5 | 105 | |
5bd4f169 AM |
106 | /* The name of the dynamic interpreter. This is put in the .interp |
107 | section. */ | |
108 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
109 | ||
110 | /* The size in bytes of an entry in the procedure linkage table. */ | |
111 | #define PLT_ENTRY_SIZE 24 | |
112 | ||
113 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 114 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
115 | |
116 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
117 | #define TOC_BASE_OFF 0x8000 |
118 | ||
119 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
120 | #define TP_OFFSET 0x7000 | |
121 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 122 | |
ad8e1ba5 AM |
123 | /* .plt call stub instructions. The normal stub is like this, but |
124 | sometimes the .plt entry crosses a 64k boundary and we need to | |
125 | insert an addis to adjust r12. */ | |
126 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
127 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
128 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
129 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
130 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
131 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
132 | /* ld %r11,xxx+16@l(%r12) */ | |
133 | #define BCTR 0x4e800420 /* bctr */ | |
134 | ||
5d1634d7 | 135 | |
ad8e1ba5 AM |
136 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
137 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
138 | ||
139 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
140 | ||
141 | /* glink call stub instructions. We enter with the index in R0, and the | |
142 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
143 | #define GLINK_CALL_STUB_SIZE (16*4) | |
144 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
145 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
146 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
147 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
148 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
149 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
150 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
151 | /* sub %r12,%r12,%r11 */ | |
152 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
153 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
154 | /* ld %r11,xxx@l(%r12) */ | |
155 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
156 | /* ld %r2,8(%r12) */ | |
157 | /* mtctr %r11 */ | |
158 | /* ld %r11,16(%r12) */ | |
159 | /* bctr */ | |
5d1634d7 AM |
160 | |
161 | /* Pad with this. */ | |
162 | #define NOP 0x60000000 | |
163 | ||
721956f4 AM |
164 | /* Some other nops. */ |
165 | #define CROR_151515 0x4def7b82 | |
166 | #define CROR_313131 0x4ffffb82 | |
167 | ||
cedb70c5 | 168 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
169 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
170 | #define B_DOT 0x48000000 /* b . */ | |
171 | ||
172 | /* After that, we need two instructions to load the index, followed by | |
173 | a branch. */ | |
174 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 175 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 176 | |
deb0e272 AM |
177 | /* Instructions used by the save and restore reg functions. */ |
178 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
179 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
180 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
181 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
82bd7b59 AM |
182 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
183 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
deb0e272 AM |
184 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
185 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
186 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
187 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
82bd7b59 AM |
188 | #define BLR 0x4e800020 /* blr */ |
189 | ||
41bd81ab AM |
190 | /* Since .opd is an array of descriptors and each entry will end up |
191 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
192 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 193 | relocate .opd without reloc entries. */ |
41bd81ab AM |
194 | #ifndef NO_OPD_RELOCS |
195 | #define NO_OPD_RELOCS 0 | |
196 | #endif | |
5bd4f169 | 197 | \f |
f5e87a1d | 198 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 199 | |
5bd4f169 | 200 | /* Relocation HOWTO's. */ |
04c9666a | 201 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
202 | |
203 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
204 | /* This reloc does nothing. */ | |
205 | HOWTO (R_PPC64_NONE, /* type */ | |
206 | 0, /* rightshift */ | |
411e1bfb AM |
207 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
208 | 32, /* bitsize */ | |
b34976b6 | 209 | FALSE, /* pc_relative */ |
5bd4f169 | 210 | 0, /* bitpos */ |
f5e87a1d | 211 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
212 | bfd_elf_generic_reloc, /* special_function */ |
213 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 214 | FALSE, /* partial_inplace */ |
d006db6c | 215 | 0, /* src_mask */ |
5bd4f169 | 216 | 0, /* dst_mask */ |
b34976b6 | 217 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
218 | |
219 | /* A standard 32 bit relocation. */ | |
220 | HOWTO (R_PPC64_ADDR32, /* type */ | |
221 | 0, /* rightshift */ | |
222 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
223 | 32, /* bitsize */ | |
b34976b6 | 224 | FALSE, /* pc_relative */ |
5bd4f169 AM |
225 | 0, /* bitpos */ |
226 | complain_overflow_bitfield, /* complain_on_overflow */ | |
227 | bfd_elf_generic_reloc, /* special_function */ | |
228 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 229 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
230 | 0, /* src_mask */ |
231 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 232 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
233 | |
234 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
235 | FIXME: we don't check that, we just clear them. */ | |
236 | HOWTO (R_PPC64_ADDR24, /* type */ | |
237 | 0, /* rightshift */ | |
238 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
239 | 26, /* bitsize */ | |
b34976b6 | 240 | FALSE, /* pc_relative */ |
5bd4f169 AM |
241 | 0, /* bitpos */ |
242 | complain_overflow_bitfield, /* complain_on_overflow */ | |
243 | bfd_elf_generic_reloc, /* special_function */ | |
244 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 245 | FALSE, /* partial_inplace */ |
d006db6c | 246 | 0, /* src_mask */ |
f5e87a1d | 247 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 248 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
249 | |
250 | /* A standard 16 bit relocation. */ | |
251 | HOWTO (R_PPC64_ADDR16, /* type */ | |
252 | 0, /* rightshift */ | |
253 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
254 | 16, /* bitsize */ | |
b34976b6 | 255 | FALSE, /* pc_relative */ |
5bd4f169 AM |
256 | 0, /* bitpos */ |
257 | complain_overflow_bitfield, /* complain_on_overflow */ | |
258 | bfd_elf_generic_reloc, /* special_function */ | |
259 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 260 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
261 | 0, /* src_mask */ |
262 | 0xffff, /* dst_mask */ | |
b34976b6 | 263 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
264 | |
265 | /* A 16 bit relocation without overflow. */ | |
266 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
267 | 0, /* rightshift */ | |
268 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
269 | 16, /* bitsize */ | |
b34976b6 | 270 | FALSE, /* pc_relative */ |
5bd4f169 AM |
271 | 0, /* bitpos */ |
272 | complain_overflow_dont,/* complain_on_overflow */ | |
273 | bfd_elf_generic_reloc, /* special_function */ | |
274 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 275 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
276 | 0, /* src_mask */ |
277 | 0xffff, /* dst_mask */ | |
b34976b6 | 278 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
279 | |
280 | /* Bits 16-31 of an address. */ | |
281 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
282 | 16, /* rightshift */ | |
283 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
284 | 16, /* bitsize */ | |
b34976b6 | 285 | FALSE, /* pc_relative */ |
5bd4f169 AM |
286 | 0, /* bitpos */ |
287 | complain_overflow_dont, /* complain_on_overflow */ | |
288 | bfd_elf_generic_reloc, /* special_function */ | |
289 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 290 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
291 | 0, /* src_mask */ |
292 | 0xffff, /* dst_mask */ | |
b34976b6 | 293 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
294 | |
295 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
296 | bits, treated as a signed number, is negative. */ | |
297 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
298 | 16, /* rightshift */ | |
299 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
300 | 16, /* bitsize */ | |
b34976b6 | 301 | FALSE, /* pc_relative */ |
5bd4f169 AM |
302 | 0, /* bitpos */ |
303 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 304 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 305 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 306 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
307 | 0, /* src_mask */ |
308 | 0xffff, /* dst_mask */ | |
b34976b6 | 309 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
310 | |
311 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
312 | FIXME: we don't check that, we just clear them. */ | |
313 | HOWTO (R_PPC64_ADDR14, /* type */ | |
314 | 0, /* rightshift */ | |
315 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
316 | 16, /* bitsize */ | |
b34976b6 | 317 | FALSE, /* pc_relative */ |
5bd4f169 AM |
318 | 0, /* bitpos */ |
319 | complain_overflow_bitfield, /* complain_on_overflow */ | |
2441e016 | 320 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 321 | "R_PPC64_ADDR14", /* name */ |
b34976b6 | 322 | FALSE, /* partial_inplace */ |
d006db6c | 323 | 0, /* src_mask */ |
f5e87a1d | 324 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 325 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
326 | |
327 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
328 | indicate that the branch is expected to be taken. The lower two | |
329 | bits must be zero. */ | |
330 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
331 | 0, /* rightshift */ | |
332 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
333 | 16, /* bitsize */ | |
b34976b6 | 334 | FALSE, /* pc_relative */ |
5bd4f169 AM |
335 | 0, /* bitpos */ |
336 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 337 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 338 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 339 | FALSE, /* partial_inplace */ |
d006db6c | 340 | 0, /* src_mask */ |
f5e87a1d | 341 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 342 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
343 | |
344 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
345 | indicate that the branch is not expected to be taken. The lower | |
346 | two bits must be zero. */ | |
347 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
348 | 0, /* rightshift */ | |
349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
350 | 16, /* bitsize */ | |
b34976b6 | 351 | FALSE, /* pc_relative */ |
5bd4f169 AM |
352 | 0, /* bitpos */ |
353 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 354 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 355 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 356 | FALSE, /* partial_inplace */ |
d006db6c | 357 | 0, /* src_mask */ |
f5e87a1d | 358 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 359 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
360 | |
361 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
362 | HOWTO (R_PPC64_REL24, /* type */ | |
363 | 0, /* rightshift */ | |
364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
365 | 26, /* bitsize */ | |
b34976b6 | 366 | TRUE, /* pc_relative */ |
5bd4f169 AM |
367 | 0, /* bitpos */ |
368 | complain_overflow_signed, /* complain_on_overflow */ | |
2441e016 | 369 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 370 | "R_PPC64_REL24", /* name */ |
b34976b6 | 371 | FALSE, /* partial_inplace */ |
d006db6c | 372 | 0, /* src_mask */ |
f5e87a1d | 373 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 374 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
375 | |
376 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
377 | HOWTO (R_PPC64_REL14, /* type */ | |
378 | 0, /* rightshift */ | |
379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 16, /* bitsize */ | |
b34976b6 | 381 | TRUE, /* pc_relative */ |
5bd4f169 AM |
382 | 0, /* bitpos */ |
383 | complain_overflow_signed, /* complain_on_overflow */ | |
2441e016 | 384 | ppc64_elf_branch_reloc, /* special_function */ |
5bd4f169 | 385 | "R_PPC64_REL14", /* name */ |
b34976b6 | 386 | FALSE, /* partial_inplace */ |
d006db6c | 387 | 0, /* src_mask */ |
f5e87a1d | 388 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 389 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
390 | |
391 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
392 | the branch is expected to be taken. The lower two bits must be | |
393 | zero. */ | |
394 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 16, /* bitsize */ | |
b34976b6 | 398 | TRUE, /* pc_relative */ |
5bd4f169 AM |
399 | 0, /* bitpos */ |
400 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 401 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 402 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 403 | FALSE, /* partial_inplace */ |
d006db6c | 404 | 0, /* src_mask */ |
f5e87a1d | 405 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 406 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
407 | |
408 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
409 | the branch is not expected to be taken. The lower two bits must | |
410 | be zero. */ | |
411 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
412 | 0, /* rightshift */ | |
413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
414 | 16, /* bitsize */ | |
b34976b6 | 415 | TRUE, /* pc_relative */ |
5bd4f169 AM |
416 | 0, /* bitpos */ |
417 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 418 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 419 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 420 | FALSE, /* partial_inplace */ |
d006db6c | 421 | 0, /* src_mask */ |
f5e87a1d | 422 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 423 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
424 | |
425 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
426 | symbol. */ | |
427 | HOWTO (R_PPC64_GOT16, /* type */ | |
428 | 0, /* rightshift */ | |
429 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
430 | 16, /* bitsize */ | |
b34976b6 | 431 | FALSE, /* pc_relative */ |
5bd4f169 AM |
432 | 0, /* bitpos */ |
433 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 434 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 435 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 436 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
437 | 0, /* src_mask */ |
438 | 0xffff, /* dst_mask */ | |
b34976b6 | 439 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
440 | |
441 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
442 | the symbol. */ | |
443 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
444 | 0, /* rightshift */ | |
445 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
446 | 16, /* bitsize */ | |
b34976b6 | 447 | FALSE, /* pc_relative */ |
5bd4f169 AM |
448 | 0, /* bitpos */ |
449 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 450 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 451 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 452 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
453 | 0, /* src_mask */ |
454 | 0xffff, /* dst_mask */ | |
b34976b6 | 455 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
456 | |
457 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
458 | the symbol. */ | |
459 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
460 | 16, /* rightshift */ | |
461 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
462 | 16, /* bitsize */ | |
b34976b6 | 463 | FALSE, /* pc_relative */ |
5bd4f169 AM |
464 | 0, /* bitpos */ |
465 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 466 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 467 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 468 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
469 | 0, /* src_mask */ |
470 | 0xffff, /* dst_mask */ | |
b34976b6 | 471 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
472 | |
473 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
474 | the symbol. */ | |
475 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
476 | 16, /* rightshift */ | |
477 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
478 | 16, /* bitsize */ | |
b34976b6 | 479 | FALSE, /* pc_relative */ |
5bd4f169 AM |
480 | 0, /* bitpos */ |
481 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 482 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 483 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 484 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
485 | 0, /* src_mask */ |
486 | 0xffff, /* dst_mask */ | |
b34976b6 | 487 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
488 | |
489 | /* This is used only by the dynamic linker. The symbol should exist | |
490 | both in the object being run and in some shared library. The | |
491 | dynamic linker copies the data addressed by the symbol from the | |
492 | shared library into the object, because the object being | |
493 | run has to have the data at some particular address. */ | |
494 | HOWTO (R_PPC64_COPY, /* type */ | |
495 | 0, /* rightshift */ | |
f5e87a1d AM |
496 | 0, /* this one is variable size */ |
497 | 0, /* bitsize */ | |
b34976b6 | 498 | FALSE, /* pc_relative */ |
5bd4f169 | 499 | 0, /* bitpos */ |
f5e87a1d AM |
500 | complain_overflow_dont, /* complain_on_overflow */ |
501 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 502 | "R_PPC64_COPY", /* name */ |
b34976b6 | 503 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
504 | 0, /* src_mask */ |
505 | 0, /* dst_mask */ | |
b34976b6 | 506 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
507 | |
508 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
509 | entries. */ | |
510 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
511 | 0, /* rightshift */ | |
512 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
513 | 64, /* bitsize */ | |
b34976b6 | 514 | FALSE, /* pc_relative */ |
5bd4f169 AM |
515 | 0, /* bitpos */ |
516 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 517 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 518 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 519 | FALSE, /* partial_inplace */ |
5bd4f169 | 520 | 0, /* src_mask */ |
f5e87a1d | 521 | ONES (64), /* dst_mask */ |
b34976b6 | 522 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
523 | |
524 | /* Created by the link editor. Marks a procedure linkage table | |
525 | entry for a symbol. */ | |
526 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
527 | 0, /* rightshift */ | |
528 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
529 | 0, /* bitsize */ | |
b34976b6 | 530 | FALSE, /* pc_relative */ |
5bd4f169 AM |
531 | 0, /* bitpos */ |
532 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 533 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 534 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 535 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
536 | 0, /* src_mask */ |
537 | 0, /* dst_mask */ | |
b34976b6 | 538 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
539 | |
540 | /* Used only by the dynamic linker. When the object is run, this | |
541 | doubleword64 is set to the load address of the object, plus the | |
542 | addend. */ | |
543 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
544 | 0, /* rightshift */ | |
545 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
546 | 64, /* bitsize */ | |
b34976b6 | 547 | FALSE, /* pc_relative */ |
5bd4f169 AM |
548 | 0, /* bitpos */ |
549 | complain_overflow_dont, /* complain_on_overflow */ | |
550 | bfd_elf_generic_reloc, /* special_function */ | |
551 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 552 | FALSE, /* partial_inplace */ |
5bd4f169 | 553 | 0, /* src_mask */ |
f5e87a1d | 554 | ONES (64), /* dst_mask */ |
b34976b6 | 555 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
556 | |
557 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
558 | HOWTO (R_PPC64_UADDR32, /* type */ | |
559 | 0, /* rightshift */ | |
560 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
561 | 32, /* bitsize */ | |
b34976b6 | 562 | FALSE, /* pc_relative */ |
5bd4f169 AM |
563 | 0, /* bitpos */ |
564 | complain_overflow_bitfield, /* complain_on_overflow */ | |
565 | bfd_elf_generic_reloc, /* special_function */ | |
566 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 567 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
568 | 0, /* src_mask */ |
569 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 570 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
571 | |
572 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
573 | HOWTO (R_PPC64_UADDR16, /* type */ | |
574 | 0, /* rightshift */ | |
575 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 16, /* bitsize */ | |
b34976b6 | 577 | FALSE, /* pc_relative */ |
5bd4f169 AM |
578 | 0, /* bitpos */ |
579 | complain_overflow_bitfield, /* complain_on_overflow */ | |
580 | bfd_elf_generic_reloc, /* special_function */ | |
581 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 582 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
583 | 0, /* src_mask */ |
584 | 0xffff, /* dst_mask */ | |
b34976b6 | 585 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
586 | |
587 | /* 32-bit PC relative. */ | |
588 | HOWTO (R_PPC64_REL32, /* type */ | |
589 | 0, /* rightshift */ | |
590 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
591 | 32, /* bitsize */ | |
b34976b6 | 592 | TRUE, /* pc_relative */ |
5bd4f169 | 593 | 0, /* bitpos */ |
cedb70c5 | 594 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
595 | complain_overflow_signed, /* complain_on_overflow */ |
596 | bfd_elf_generic_reloc, /* special_function */ | |
597 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 598 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
599 | 0, /* src_mask */ |
600 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 601 | TRUE), /* pcrel_offset */ |
5bd4f169 | 602 | |
10ed1bba | 603 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
604 | HOWTO (R_PPC64_PLT32, /* type */ |
605 | 0, /* rightshift */ | |
606 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
607 | 32, /* bitsize */ | |
b34976b6 | 608 | FALSE, /* pc_relative */ |
5bd4f169 AM |
609 | 0, /* bitpos */ |
610 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 611 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 612 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 613 | FALSE, /* partial_inplace */ |
5bd4f169 | 614 | 0, /* src_mask */ |
f5e87a1d | 615 | 0xffffffff, /* dst_mask */ |
b34976b6 | 616 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
617 | |
618 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
619 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
620 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
621 | 0, /* rightshift */ | |
622 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
623 | 32, /* bitsize */ | |
b34976b6 | 624 | TRUE, /* pc_relative */ |
5bd4f169 AM |
625 | 0, /* bitpos */ |
626 | complain_overflow_signed, /* complain_on_overflow */ | |
627 | bfd_elf_generic_reloc, /* special_function */ | |
628 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 629 | FALSE, /* partial_inplace */ |
5bd4f169 | 630 | 0, /* src_mask */ |
f5e87a1d | 631 | 0xffffffff, /* dst_mask */ |
b34976b6 | 632 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
633 | |
634 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
635 | the symbol. */ | |
636 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
637 | 0, /* rightshift */ | |
638 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
639 | 16, /* bitsize */ | |
b34976b6 | 640 | FALSE, /* pc_relative */ |
5bd4f169 AM |
641 | 0, /* bitpos */ |
642 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 643 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 644 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 645 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
646 | 0, /* src_mask */ |
647 | 0xffff, /* dst_mask */ | |
b34976b6 | 648 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
649 | |
650 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
651 | the symbol. */ | |
652 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
653 | 16, /* rightshift */ | |
654 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
655 | 16, /* bitsize */ | |
b34976b6 | 656 | FALSE, /* pc_relative */ |
5bd4f169 AM |
657 | 0, /* bitpos */ |
658 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 659 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 660 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 661 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
662 | 0, /* src_mask */ |
663 | 0xffff, /* dst_mask */ | |
b34976b6 | 664 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
665 | |
666 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
667 | the symbol. */ | |
668 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
669 | 16, /* rightshift */ | |
670 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
671 | 16, /* bitsize */ | |
b34976b6 | 672 | FALSE, /* pc_relative */ |
5bd4f169 AM |
673 | 0, /* bitpos */ |
674 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 675 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 676 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 677 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
678 | 0, /* src_mask */ |
679 | 0xffff, /* dst_mask */ | |
b34976b6 | 680 | FALSE), /* pcrel_offset */ |
5bd4f169 | 681 | |
c061c2d8 | 682 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
683 | HOWTO (R_PPC64_SECTOFF, /* type */ |
684 | 0, /* rightshift */ | |
c061c2d8 AM |
685 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
686 | 16, /* bitsize */ | |
b34976b6 | 687 | FALSE, /* pc_relative */ |
5bd4f169 AM |
688 | 0, /* bitpos */ |
689 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 690 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 691 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 692 | FALSE, /* partial_inplace */ |
5bd4f169 | 693 | 0, /* src_mask */ |
c061c2d8 | 694 | 0xffff, /* dst_mask */ |
b34976b6 | 695 | FALSE), /* pcrel_offset */ |
5bd4f169 | 696 | |
c061c2d8 | 697 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
698 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
699 | 0, /* rightshift */ | |
700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
701 | 16, /* bitsize */ | |
b34976b6 | 702 | FALSE, /* pc_relative */ |
5bd4f169 AM |
703 | 0, /* bitpos */ |
704 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 705 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 706 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 707 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
708 | 0, /* src_mask */ |
709 | 0xffff, /* dst_mask */ | |
b34976b6 | 710 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
711 | |
712 | /* 16-bit upper half section relative relocation. */ | |
713 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
714 | 16, /* rightshift */ | |
715 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
716 | 16, /* bitsize */ | |
b34976b6 | 717 | FALSE, /* pc_relative */ |
5bd4f169 AM |
718 | 0, /* bitpos */ |
719 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 720 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 721 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 722 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
723 | 0, /* src_mask */ |
724 | 0xffff, /* dst_mask */ | |
b34976b6 | 725 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
726 | |
727 | /* 16-bit upper half adjusted section relative relocation. */ | |
728 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
729 | 16, /* rightshift */ | |
730 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
731 | 16, /* bitsize */ | |
b34976b6 | 732 | FALSE, /* pc_relative */ |
5bd4f169 AM |
733 | 0, /* bitpos */ |
734 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 735 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 736 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 737 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
738 | 0, /* src_mask */ |
739 | 0xffff, /* dst_mask */ | |
b34976b6 | 740 | FALSE), /* pcrel_offset */ |
5bd4f169 | 741 | |
04c9666a AM |
742 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
743 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
744 | 2, /* rightshift */ |
745 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
746 | 30, /* bitsize */ | |
b34976b6 | 747 | TRUE, /* pc_relative */ |
5bd4f169 AM |
748 | 0, /* bitpos */ |
749 | complain_overflow_dont, /* complain_on_overflow */ | |
750 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 751 | "R_PPC64_REL30", /* name */ |
b34976b6 | 752 | FALSE, /* partial_inplace */ |
d006db6c | 753 | 0, /* src_mask */ |
5bd4f169 | 754 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 755 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
756 | |
757 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
758 | ||
759 | /* A standard 64-bit relocation. */ | |
760 | HOWTO (R_PPC64_ADDR64, /* type */ | |
761 | 0, /* rightshift */ | |
762 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
763 | 64, /* bitsize */ | |
b34976b6 | 764 | FALSE, /* pc_relative */ |
5bd4f169 AM |
765 | 0, /* bitpos */ |
766 | complain_overflow_dont, /* complain_on_overflow */ | |
767 | bfd_elf_generic_reloc, /* special_function */ | |
768 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 769 | FALSE, /* partial_inplace */ |
5bd4f169 | 770 | 0, /* src_mask */ |
f5e87a1d | 771 | ONES (64), /* dst_mask */ |
b34976b6 | 772 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
773 | |
774 | /* The bits 32-47 of an address. */ | |
775 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
776 | 32, /* rightshift */ | |
777 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
778 | 16, /* bitsize */ | |
b34976b6 | 779 | FALSE, /* pc_relative */ |
5bd4f169 AM |
780 | 0, /* bitpos */ |
781 | complain_overflow_dont, /* complain_on_overflow */ | |
782 | bfd_elf_generic_reloc, /* special_function */ | |
783 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 784 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
785 | 0, /* src_mask */ |
786 | 0xffff, /* dst_mask */ | |
b34976b6 | 787 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
788 | |
789 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
790 | 16 bits, treated as a signed number, is negative. */ | |
791 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
792 | 32, /* rightshift */ | |
793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 16, /* bitsize */ | |
b34976b6 | 795 | FALSE, /* pc_relative */ |
5bd4f169 AM |
796 | 0, /* bitpos */ |
797 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 798 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 799 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 800 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
801 | 0, /* src_mask */ |
802 | 0xffff, /* dst_mask */ | |
b34976b6 | 803 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
804 | |
805 | /* The bits 48-63 of an address. */ | |
806 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
807 | 48, /* rightshift */ | |
808 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
809 | 16, /* bitsize */ | |
b34976b6 | 810 | FALSE, /* pc_relative */ |
5bd4f169 AM |
811 | 0, /* bitpos */ |
812 | complain_overflow_dont, /* complain_on_overflow */ | |
813 | bfd_elf_generic_reloc, /* special_function */ | |
814 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 815 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
816 | 0, /* src_mask */ |
817 | 0xffff, /* dst_mask */ | |
b34976b6 | 818 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
819 | |
820 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
821 | 16 bits, treated as a signed number, is negative. */ | |
822 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
823 | 48, /* rightshift */ | |
824 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
825 | 16, /* bitsize */ | |
b34976b6 | 826 | FALSE, /* pc_relative */ |
5bd4f169 AM |
827 | 0, /* bitpos */ |
828 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 829 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 830 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 831 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
832 | 0, /* src_mask */ |
833 | 0xffff, /* dst_mask */ | |
b34976b6 | 834 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
835 | |
836 | /* Like ADDR64, but may be unaligned. */ | |
837 | HOWTO (R_PPC64_UADDR64, /* type */ | |
838 | 0, /* rightshift */ | |
839 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
840 | 64, /* bitsize */ | |
b34976b6 | 841 | FALSE, /* pc_relative */ |
5bd4f169 AM |
842 | 0, /* bitpos */ |
843 | complain_overflow_dont, /* complain_on_overflow */ | |
844 | bfd_elf_generic_reloc, /* special_function */ | |
845 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 846 | FALSE, /* partial_inplace */ |
5bd4f169 | 847 | 0, /* src_mask */ |
f5e87a1d | 848 | ONES (64), /* dst_mask */ |
b34976b6 | 849 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
850 | |
851 | /* 64-bit relative relocation. */ | |
852 | HOWTO (R_PPC64_REL64, /* type */ | |
853 | 0, /* rightshift */ | |
854 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
855 | 64, /* bitsize */ | |
b34976b6 | 856 | TRUE, /* pc_relative */ |
5bd4f169 AM |
857 | 0, /* bitpos */ |
858 | complain_overflow_dont, /* complain_on_overflow */ | |
859 | bfd_elf_generic_reloc, /* special_function */ | |
860 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 861 | FALSE, /* partial_inplace */ |
5bd4f169 | 862 | 0, /* src_mask */ |
f5e87a1d | 863 | ONES (64), /* dst_mask */ |
b34976b6 | 864 | TRUE), /* pcrel_offset */ |
5bd4f169 | 865 | |
cedb70c5 | 866 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
867 | HOWTO (R_PPC64_PLT64, /* type */ |
868 | 0, /* rightshift */ | |
869 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
870 | 64, /* bitsize */ | |
b34976b6 | 871 | FALSE, /* pc_relative */ |
5bd4f169 AM |
872 | 0, /* bitpos */ |
873 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 874 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 875 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 876 | FALSE, /* partial_inplace */ |
5bd4f169 | 877 | 0, /* src_mask */ |
f5e87a1d | 878 | ONES (64), /* dst_mask */ |
b34976b6 | 879 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
880 | |
881 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
882 | table. */ | |
883 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
884 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
885 | 0, /* rightshift */ | |
886 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
887 | 64, /* bitsize */ | |
b34976b6 | 888 | TRUE, /* pc_relative */ |
5bd4f169 AM |
889 | 0, /* bitpos */ |
890 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 891 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 892 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 893 | FALSE, /* partial_inplace */ |
5bd4f169 | 894 | 0, /* src_mask */ |
f5e87a1d | 895 | ONES (64), /* dst_mask */ |
b34976b6 | 896 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
897 | |
898 | /* 16 bit TOC-relative relocation. */ | |
899 | ||
900 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
901 | HOWTO (R_PPC64_TOC16, /* type */ | |
902 | 0, /* rightshift */ | |
903 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
904 | 16, /* bitsize */ | |
b34976b6 | 905 | FALSE, /* pc_relative */ |
5bd4f169 AM |
906 | 0, /* bitpos */ |
907 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 908 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 909 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 910 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
911 | 0, /* src_mask */ |
912 | 0xffff, /* dst_mask */ | |
b34976b6 | 913 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
914 | |
915 | /* 16 bit TOC-relative relocation without overflow. */ | |
916 | ||
917 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
918 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
919 | 0, /* rightshift */ | |
920 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
921 | 16, /* bitsize */ | |
b34976b6 | 922 | FALSE, /* pc_relative */ |
5bd4f169 AM |
923 | 0, /* bitpos */ |
924 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 925 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 926 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 927 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
928 | 0, /* src_mask */ |
929 | 0xffff, /* dst_mask */ | |
b34976b6 | 930 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
931 | |
932 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
933 | ||
934 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
935 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
936 | 16, /* rightshift */ | |
937 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
938 | 16, /* bitsize */ | |
b34976b6 | 939 | FALSE, /* pc_relative */ |
5bd4f169 AM |
940 | 0, /* bitpos */ |
941 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 942 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 943 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 944 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
945 | 0, /* src_mask */ |
946 | 0xffff, /* dst_mask */ | |
b34976b6 | 947 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
948 | |
949 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
950 | contents of the low 16 bits, treated as a signed number, is | |
951 | negative. */ | |
952 | ||
953 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
954 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
955 | 16, /* rightshift */ | |
956 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
957 | 16, /* bitsize */ | |
b34976b6 | 958 | FALSE, /* pc_relative */ |
5bd4f169 AM |
959 | 0, /* bitpos */ |
960 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 961 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 962 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 963 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
964 | 0, /* src_mask */ |
965 | 0xffff, /* dst_mask */ | |
b34976b6 | 966 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
967 | |
968 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
969 | ||
970 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
971 | HOWTO (R_PPC64_TOC, /* type */ | |
972 | 0, /* rightshift */ | |
973 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
974 | 64, /* bitsize */ | |
b34976b6 | 975 | FALSE, /* pc_relative */ |
5bd4f169 AM |
976 | 0, /* bitpos */ |
977 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 978 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 979 | "R_PPC64_TOC", /* name */ |
b34976b6 | 980 | FALSE, /* partial_inplace */ |
5bd4f169 | 981 | 0, /* src_mask */ |
f5e87a1d | 982 | ONES (64), /* dst_mask */ |
b34976b6 | 983 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
984 | |
985 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
986 | value to relocate may (!) refer to a PLT entry which the link | |
987 | editor (a) may replace with the symbol value. If the link editor | |
988 | is unable to fully resolve the symbol, it may (b) create a PLT | |
989 | entry and store the address to the new PLT entry in the GOT. | |
990 | This permits lazy resolution of function symbols at run time. | |
991 | The link editor may also skip all of this and just (c) emit a | |
992 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
993 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
994 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
995 | 0, /* rightshift */ | |
996 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
997 | 16, /* bitsize */ | |
b34976b6 | 998 | FALSE, /* pc_relative */ |
5bd4f169 AM |
999 | 0, /* bitpos */ |
1000 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 1001 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
1002 | "R_PPC64_PLTGOT16", /* name */ |
1003 | FALSE, /* partial_inplace */ | |
1004 | 0, /* src_mask */ | |
1005 | 0xffff, /* dst_mask */ | |
1006 | FALSE), /* pcrel_offset */ | |
1007 | ||
1008 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
1009 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1010 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
1011 | 0, /* rightshift */ | |
1012 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1013 | 16, /* bitsize */ | |
1014 | FALSE, /* pc_relative */ | |
1015 | 0, /* bitpos */ | |
1016 | complain_overflow_dont, /* complain_on_overflow */ | |
1017 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1018 | "R_PPC64_PLTGOT16_LO", /* name */ | |
1019 | FALSE, /* partial_inplace */ | |
1020 | 0, /* src_mask */ | |
1021 | 0xffff, /* dst_mask */ | |
1022 | FALSE), /* pcrel_offset */ | |
1023 | ||
1024 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1025 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1026 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1027 | 16, /* rightshift */ | |
1028 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1029 | 16, /* bitsize */ | |
1030 | FALSE, /* pc_relative */ | |
1031 | 0, /* bitpos */ | |
1032 | complain_overflow_dont, /* complain_on_overflow */ | |
1033 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1034 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1035 | FALSE, /* partial_inplace */ | |
1036 | 0, /* src_mask */ | |
1037 | 0xffff, /* dst_mask */ | |
1038 | FALSE), /* pcrel_offset */ | |
1039 | ||
1040 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1041 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1042 | is negative. */ | |
1043 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1044 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1045 | 16, /* rightshift */ | |
1046 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1047 | 16, /* bitsize */ | |
1048 | FALSE, /* pc_relative */ | |
1049 | 0, /* bitpos */ | |
1050 | complain_overflow_dont,/* complain_on_overflow */ | |
1051 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1052 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1053 | FALSE, /* partial_inplace */ | |
1054 | 0, /* src_mask */ | |
1055 | 0xffff, /* dst_mask */ | |
1056 | FALSE), /* pcrel_offset */ | |
1057 | ||
1058 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1059 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1060 | 0, /* rightshift */ | |
1061 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1062 | 16, /* bitsize */ | |
1063 | FALSE, /* pc_relative */ | |
1064 | 0, /* bitpos */ | |
1065 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1066 | bfd_elf_generic_reloc, /* special_function */ | |
1067 | "R_PPC64_ADDR16_DS", /* name */ | |
1068 | FALSE, /* partial_inplace */ | |
1069 | 0, /* src_mask */ | |
1070 | 0xfffc, /* dst_mask */ | |
1071 | FALSE), /* pcrel_offset */ | |
1072 | ||
1073 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1074 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1075 | 0, /* rightshift */ | |
1076 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1077 | 16, /* bitsize */ | |
1078 | FALSE, /* pc_relative */ | |
1079 | 0, /* bitpos */ | |
1080 | complain_overflow_dont,/* complain_on_overflow */ | |
1081 | bfd_elf_generic_reloc, /* special_function */ | |
1082 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1083 | FALSE, /* partial_inplace */ | |
1084 | 0, /* src_mask */ | |
1085 | 0xfffc, /* dst_mask */ | |
1086 | FALSE), /* pcrel_offset */ | |
1087 | ||
1088 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1089 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1090 | 0, /* rightshift */ | |
1091 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1092 | 16, /* bitsize */ | |
1093 | FALSE, /* pc_relative */ | |
1094 | 0, /* bitpos */ | |
1095 | complain_overflow_signed, /* complain_on_overflow */ | |
1096 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1097 | "R_PPC64_GOT16_DS", /* name */ | |
1098 | FALSE, /* partial_inplace */ | |
1099 | 0, /* src_mask */ | |
1100 | 0xfffc, /* dst_mask */ | |
1101 | FALSE), /* pcrel_offset */ | |
1102 | ||
1103 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1104 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1105 | 0, /* rightshift */ | |
1106 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1107 | 16, /* bitsize */ | |
1108 | FALSE, /* pc_relative */ | |
1109 | 0, /* bitpos */ | |
1110 | complain_overflow_dont, /* complain_on_overflow */ | |
1111 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1112 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1113 | FALSE, /* partial_inplace */ | |
1114 | 0, /* src_mask */ | |
1115 | 0xfffc, /* dst_mask */ | |
1116 | FALSE), /* pcrel_offset */ | |
1117 | ||
1118 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1119 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1120 | 0, /* rightshift */ | |
1121 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1122 | 16, /* bitsize */ | |
1123 | FALSE, /* pc_relative */ | |
1124 | 0, /* bitpos */ | |
1125 | complain_overflow_dont, /* complain_on_overflow */ | |
1126 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1127 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1128 | FALSE, /* partial_inplace */ | |
1129 | 0, /* src_mask */ | |
1130 | 0xfffc, /* dst_mask */ | |
1131 | FALSE), /* pcrel_offset */ | |
1132 | ||
1133 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1134 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1135 | 0, /* rightshift */ | |
1136 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1137 | 16, /* bitsize */ | |
1138 | FALSE, /* pc_relative */ | |
1139 | 0, /* bitpos */ | |
1140 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1141 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1142 | "R_PPC64_SECTOFF_DS", /* name */ | |
1143 | FALSE, /* partial_inplace */ | |
1144 | 0, /* src_mask */ | |
1145 | 0xfffc, /* dst_mask */ | |
1146 | FALSE), /* pcrel_offset */ | |
1147 | ||
1148 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1149 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1150 | 0, /* rightshift */ | |
1151 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1152 | 16, /* bitsize */ | |
1153 | FALSE, /* pc_relative */ | |
1154 | 0, /* bitpos */ | |
1155 | complain_overflow_dont, /* complain_on_overflow */ | |
1156 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1157 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1158 | FALSE, /* partial_inplace */ | |
1159 | 0, /* src_mask */ | |
1160 | 0xfffc, /* dst_mask */ | |
1161 | FALSE), /* pcrel_offset */ | |
1162 | ||
1163 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1164 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1165 | 0, /* rightshift */ | |
1166 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1167 | 16, /* bitsize */ | |
1168 | FALSE, /* pc_relative */ | |
1169 | 0, /* bitpos */ | |
1170 | complain_overflow_signed, /* complain_on_overflow */ | |
1171 | ppc64_elf_toc_reloc, /* special_function */ | |
1172 | "R_PPC64_TOC16_DS", /* name */ | |
1173 | FALSE, /* partial_inplace */ | |
1174 | 0, /* src_mask */ | |
1175 | 0xfffc, /* dst_mask */ | |
1176 | FALSE), /* pcrel_offset */ | |
1177 | ||
1178 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1179 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1180 | 0, /* rightshift */ | |
1181 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1182 | 16, /* bitsize */ | |
1183 | FALSE, /* pc_relative */ | |
1184 | 0, /* bitpos */ | |
1185 | complain_overflow_dont, /* complain_on_overflow */ | |
1186 | ppc64_elf_toc_reloc, /* special_function */ | |
1187 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1188 | FALSE, /* partial_inplace */ | |
1189 | 0, /* src_mask */ | |
1190 | 0xfffc, /* dst_mask */ | |
1191 | FALSE), /* pcrel_offset */ | |
1192 | ||
1193 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1194 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1195 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1196 | 0, /* rightshift */ | |
1197 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1198 | 16, /* bitsize */ | |
1199 | FALSE, /* pc_relative */ | |
1200 | 0, /* bitpos */ | |
1201 | complain_overflow_signed, /* complain_on_overflow */ | |
1202 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1203 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1204 | FALSE, /* partial_inplace */ | |
1205 | 0, /* src_mask */ | |
1206 | 0xfffc, /* dst_mask */ | |
1207 | FALSE), /* pcrel_offset */ | |
1208 | ||
1209 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1210 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1211 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1212 | 0, /* rightshift */ | |
1213 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1214 | 16, /* bitsize */ | |
1215 | FALSE, /* pc_relative */ | |
1216 | 0, /* bitpos */ | |
1217 | complain_overflow_dont, /* complain_on_overflow */ | |
1218 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1219 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1220 | FALSE, /* partial_inplace */ | |
1221 | 0, /* src_mask */ | |
1222 | 0xfffc, /* dst_mask */ | |
1223 | FALSE), /* pcrel_offset */ | |
1224 | ||
1225 | /* Marker reloc for TLS. */ | |
1226 | HOWTO (R_PPC64_TLS, | |
1227 | 0, /* rightshift */ | |
1228 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1229 | 32, /* bitsize */ | |
1230 | FALSE, /* pc_relative */ | |
1231 | 0, /* bitpos */ | |
1232 | complain_overflow_dont, /* complain_on_overflow */ | |
1233 | bfd_elf_generic_reloc, /* special_function */ | |
1234 | "R_PPC64_TLS", /* name */ | |
1235 | FALSE, /* partial_inplace */ | |
1236 | 0, /* src_mask */ | |
1237 | 0, /* dst_mask */ | |
1238 | FALSE), /* pcrel_offset */ | |
1239 | ||
1240 | /* Computes the load module index of the load module that contains the | |
1241 | definition of its TLS sym. */ | |
1242 | HOWTO (R_PPC64_DTPMOD64, | |
1243 | 0, /* rightshift */ | |
1244 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1245 | 64, /* bitsize */ | |
1246 | FALSE, /* pc_relative */ | |
1247 | 0, /* bitpos */ | |
1248 | complain_overflow_dont, /* complain_on_overflow */ | |
1249 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1250 | "R_PPC64_DTPMOD64", /* name */ | |
1251 | FALSE, /* partial_inplace */ | |
1252 | 0, /* src_mask */ | |
1253 | ONES (64), /* dst_mask */ | |
1254 | FALSE), /* pcrel_offset */ | |
1255 | ||
1256 | /* Computes a dtv-relative displacement, the difference between the value | |
1257 | of sym+add and the base address of the thread-local storage block that | |
1258 | contains the definition of sym, minus 0x8000. */ | |
1259 | HOWTO (R_PPC64_DTPREL64, | |
1260 | 0, /* rightshift */ | |
1261 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1262 | 64, /* bitsize */ | |
1263 | FALSE, /* pc_relative */ | |
1264 | 0, /* bitpos */ | |
1265 | complain_overflow_dont, /* complain_on_overflow */ | |
1266 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1267 | "R_PPC64_DTPREL64", /* name */ | |
1268 | FALSE, /* partial_inplace */ | |
1269 | 0, /* src_mask */ | |
1270 | ONES (64), /* dst_mask */ | |
1271 | FALSE), /* pcrel_offset */ | |
1272 | ||
1273 | /* A 16 bit dtprel reloc. */ | |
1274 | HOWTO (R_PPC64_DTPREL16, | |
1275 | 0, /* rightshift */ | |
1276 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1277 | 16, /* bitsize */ | |
1278 | FALSE, /* pc_relative */ | |
1279 | 0, /* bitpos */ | |
1280 | complain_overflow_signed, /* complain_on_overflow */ | |
1281 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1282 | "R_PPC64_DTPREL16", /* name */ | |
1283 | FALSE, /* partial_inplace */ | |
1284 | 0, /* src_mask */ | |
1285 | 0xffff, /* dst_mask */ | |
1286 | FALSE), /* pcrel_offset */ | |
1287 | ||
1288 | /* Like DTPREL16, but no overflow. */ | |
1289 | HOWTO (R_PPC64_DTPREL16_LO, | |
1290 | 0, /* rightshift */ | |
1291 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1292 | 16, /* bitsize */ | |
1293 | FALSE, /* pc_relative */ | |
1294 | 0, /* bitpos */ | |
1295 | complain_overflow_dont, /* complain_on_overflow */ | |
1296 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1297 | "R_PPC64_DTPREL16_LO", /* name */ | |
1298 | FALSE, /* partial_inplace */ | |
1299 | 0, /* src_mask */ | |
1300 | 0xffff, /* dst_mask */ | |
1301 | FALSE), /* pcrel_offset */ | |
1302 | ||
1303 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1304 | HOWTO (R_PPC64_DTPREL16_HI, | |
1305 | 16, /* rightshift */ | |
1306 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1307 | 16, /* bitsize */ | |
1308 | FALSE, /* pc_relative */ | |
1309 | 0, /* bitpos */ | |
1310 | complain_overflow_dont, /* complain_on_overflow */ | |
1311 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1312 | "R_PPC64_DTPREL16_HI", /* name */ | |
1313 | FALSE, /* partial_inplace */ | |
1314 | 0, /* src_mask */ | |
1315 | 0xffff, /* dst_mask */ | |
1316 | FALSE), /* pcrel_offset */ | |
1317 | ||
1318 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1319 | HOWTO (R_PPC64_DTPREL16_HA, | |
1320 | 16, /* rightshift */ | |
1321 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1322 | 16, /* bitsize */ | |
1323 | FALSE, /* pc_relative */ | |
1324 | 0, /* bitpos */ | |
1325 | complain_overflow_dont, /* complain_on_overflow */ | |
1326 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1327 | "R_PPC64_DTPREL16_HA", /* name */ | |
1328 | FALSE, /* partial_inplace */ | |
1329 | 0, /* src_mask */ | |
1330 | 0xffff, /* dst_mask */ | |
1331 | FALSE), /* pcrel_offset */ | |
1332 | ||
1333 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1334 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1335 | 32, /* rightshift */ | |
1336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1337 | 16, /* bitsize */ | |
1338 | FALSE, /* pc_relative */ | |
1339 | 0, /* bitpos */ | |
1340 | complain_overflow_dont, /* complain_on_overflow */ | |
1341 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1342 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1343 | FALSE, /* partial_inplace */ | |
1344 | 0, /* src_mask */ | |
1345 | 0xffff, /* dst_mask */ | |
1346 | FALSE), /* pcrel_offset */ | |
1347 | ||
1348 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1349 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1350 | 32, /* rightshift */ | |
1351 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1352 | 16, /* bitsize */ | |
1353 | FALSE, /* pc_relative */ | |
1354 | 0, /* bitpos */ | |
1355 | complain_overflow_dont, /* complain_on_overflow */ | |
1356 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1357 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1358 | FALSE, /* partial_inplace */ | |
1359 | 0, /* src_mask */ | |
1360 | 0xffff, /* dst_mask */ | |
1361 | FALSE), /* pcrel_offset */ | |
1362 | ||
1363 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1364 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1365 | 48, /* rightshift */ | |
1366 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1367 | 16, /* bitsize */ | |
1368 | FALSE, /* pc_relative */ | |
1369 | 0, /* bitpos */ | |
1370 | complain_overflow_dont, /* complain_on_overflow */ | |
1371 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1372 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1373 | FALSE, /* partial_inplace */ | |
1374 | 0, /* src_mask */ | |
1375 | 0xffff, /* dst_mask */ | |
1376 | FALSE), /* pcrel_offset */ | |
1377 | ||
1378 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1379 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1380 | 48, /* rightshift */ | |
1381 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1382 | 16, /* bitsize */ | |
1383 | FALSE, /* pc_relative */ | |
1384 | 0, /* bitpos */ | |
1385 | complain_overflow_dont, /* complain_on_overflow */ | |
1386 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1387 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1388 | FALSE, /* partial_inplace */ | |
1389 | 0, /* src_mask */ | |
1390 | 0xffff, /* dst_mask */ | |
1391 | FALSE), /* pcrel_offset */ | |
1392 | ||
1393 | /* Like DTPREL16, but for insns with a DS field. */ | |
1394 | HOWTO (R_PPC64_DTPREL16_DS, | |
1395 | 0, /* rightshift */ | |
1396 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1397 | 16, /* bitsize */ | |
1398 | FALSE, /* pc_relative */ | |
1399 | 0, /* bitpos */ | |
1400 | complain_overflow_signed, /* complain_on_overflow */ | |
1401 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1402 | "R_PPC64_DTPREL16_DS", /* name */ | |
1403 | FALSE, /* partial_inplace */ | |
1404 | 0, /* src_mask */ | |
1405 | 0xfffc, /* dst_mask */ | |
1406 | FALSE), /* pcrel_offset */ | |
1407 | ||
1408 | /* Like DTPREL16_DS, but no overflow. */ | |
1409 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1410 | 0, /* rightshift */ | |
1411 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1412 | 16, /* bitsize */ | |
1413 | FALSE, /* pc_relative */ | |
1414 | 0, /* bitpos */ | |
1415 | complain_overflow_dont, /* complain_on_overflow */ | |
1416 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1417 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1418 | FALSE, /* partial_inplace */ | |
1419 | 0, /* src_mask */ | |
1420 | 0xfffc, /* dst_mask */ | |
1421 | FALSE), /* pcrel_offset */ | |
1422 | ||
1423 | /* Computes a tp-relative displacement, the difference between the value of | |
1424 | sym+add and the value of the thread pointer (r13). */ | |
1425 | HOWTO (R_PPC64_TPREL64, | |
1426 | 0, /* rightshift */ | |
1427 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1428 | 64, /* bitsize */ | |
1429 | FALSE, /* pc_relative */ | |
1430 | 0, /* bitpos */ | |
1431 | complain_overflow_dont, /* complain_on_overflow */ | |
1432 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1433 | "R_PPC64_TPREL64", /* name */ | |
1434 | FALSE, /* partial_inplace */ | |
1435 | 0, /* src_mask */ | |
1436 | ONES (64), /* dst_mask */ | |
1437 | FALSE), /* pcrel_offset */ | |
1438 | ||
1439 | /* A 16 bit tprel reloc. */ | |
1440 | HOWTO (R_PPC64_TPREL16, | |
1441 | 0, /* rightshift */ | |
1442 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1443 | 16, /* bitsize */ | |
1444 | FALSE, /* pc_relative */ | |
1445 | 0, /* bitpos */ | |
1446 | complain_overflow_signed, /* complain_on_overflow */ | |
1447 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1448 | "R_PPC64_TPREL16", /* name */ | |
1449 | FALSE, /* partial_inplace */ | |
1450 | 0, /* src_mask */ | |
1451 | 0xffff, /* dst_mask */ | |
1452 | FALSE), /* pcrel_offset */ | |
1453 | ||
1454 | /* Like TPREL16, but no overflow. */ | |
1455 | HOWTO (R_PPC64_TPREL16_LO, | |
1456 | 0, /* rightshift */ | |
1457 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1458 | 16, /* bitsize */ | |
1459 | FALSE, /* pc_relative */ | |
1460 | 0, /* bitpos */ | |
1461 | complain_overflow_dont, /* complain_on_overflow */ | |
1462 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1463 | "R_PPC64_TPREL16_LO", /* name */ | |
1464 | FALSE, /* partial_inplace */ | |
1465 | 0, /* src_mask */ | |
1466 | 0xffff, /* dst_mask */ | |
1467 | FALSE), /* pcrel_offset */ | |
1468 | ||
1469 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1470 | HOWTO (R_PPC64_TPREL16_HI, | |
1471 | 16, /* rightshift */ | |
1472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1473 | 16, /* bitsize */ | |
1474 | FALSE, /* pc_relative */ | |
1475 | 0, /* bitpos */ | |
1476 | complain_overflow_dont, /* complain_on_overflow */ | |
1477 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1478 | "R_PPC64_TPREL16_HI", /* name */ | |
1479 | FALSE, /* partial_inplace */ | |
1480 | 0, /* src_mask */ | |
1481 | 0xffff, /* dst_mask */ | |
1482 | FALSE), /* pcrel_offset */ | |
1483 | ||
1484 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1485 | HOWTO (R_PPC64_TPREL16_HA, | |
1486 | 16, /* rightshift */ | |
1487 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1488 | 16, /* bitsize */ | |
1489 | FALSE, /* pc_relative */ | |
1490 | 0, /* bitpos */ | |
1491 | complain_overflow_dont, /* complain_on_overflow */ | |
1492 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1493 | "R_PPC64_TPREL16_HA", /* name */ | |
1494 | FALSE, /* partial_inplace */ | |
1495 | 0, /* src_mask */ | |
1496 | 0xffff, /* dst_mask */ | |
1497 | FALSE), /* pcrel_offset */ | |
1498 | ||
1499 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1500 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1501 | 32, /* rightshift */ | |
1502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1503 | 16, /* bitsize */ | |
1504 | FALSE, /* pc_relative */ | |
1505 | 0, /* bitpos */ | |
1506 | complain_overflow_dont, /* complain_on_overflow */ | |
1507 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1508 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1509 | FALSE, /* partial_inplace */ | |
1510 | 0, /* src_mask */ | |
1511 | 0xffff, /* dst_mask */ | |
1512 | FALSE), /* pcrel_offset */ | |
1513 | ||
1514 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1515 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1516 | 32, /* rightshift */ | |
1517 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1518 | 16, /* bitsize */ | |
1519 | FALSE, /* pc_relative */ | |
1520 | 0, /* bitpos */ | |
1521 | complain_overflow_dont, /* complain_on_overflow */ | |
1522 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1523 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1524 | FALSE, /* partial_inplace */ | |
1525 | 0, /* src_mask */ | |
1526 | 0xffff, /* dst_mask */ | |
1527 | FALSE), /* pcrel_offset */ | |
1528 | ||
1529 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1530 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1531 | 48, /* rightshift */ | |
1532 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1533 | 16, /* bitsize */ | |
1534 | FALSE, /* pc_relative */ | |
1535 | 0, /* bitpos */ | |
1536 | complain_overflow_dont, /* complain_on_overflow */ | |
1537 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1538 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1539 | FALSE, /* partial_inplace */ | |
1540 | 0, /* src_mask */ | |
1541 | 0xffff, /* dst_mask */ | |
1542 | FALSE), /* pcrel_offset */ | |
1543 | ||
1544 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1545 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1546 | 48, /* rightshift */ | |
1547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1548 | 16, /* bitsize */ | |
1549 | FALSE, /* pc_relative */ | |
1550 | 0, /* bitpos */ | |
1551 | complain_overflow_dont, /* complain_on_overflow */ | |
1552 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1553 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1554 | FALSE, /* partial_inplace */ | |
1555 | 0, /* src_mask */ | |
1556 | 0xffff, /* dst_mask */ | |
1557 | FALSE), /* pcrel_offset */ | |
1558 | ||
1559 | /* Like TPREL16, but for insns with a DS field. */ | |
1560 | HOWTO (R_PPC64_TPREL16_DS, | |
1561 | 0, /* rightshift */ | |
1562 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1563 | 16, /* bitsize */ | |
1564 | FALSE, /* pc_relative */ | |
1565 | 0, /* bitpos */ | |
1566 | complain_overflow_signed, /* complain_on_overflow */ | |
1567 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1568 | "R_PPC64_TPREL16_DS", /* name */ | |
1569 | FALSE, /* partial_inplace */ | |
1570 | 0, /* src_mask */ | |
1571 | 0xfffc, /* dst_mask */ | |
1572 | FALSE), /* pcrel_offset */ | |
1573 | ||
1574 | /* Like TPREL16_DS, but no overflow. */ | |
1575 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1576 | 0, /* rightshift */ | |
1577 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1578 | 16, /* bitsize */ | |
1579 | FALSE, /* pc_relative */ | |
1580 | 0, /* bitpos */ | |
1581 | complain_overflow_dont, /* complain_on_overflow */ | |
1582 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1583 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1584 | FALSE, /* partial_inplace */ | |
1585 | 0, /* src_mask */ | |
1586 | 0xfffc, /* dst_mask */ | |
1587 | FALSE), /* pcrel_offset */ | |
1588 | ||
1589 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1590 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1591 | to the first entry relative to the TOC base (r2). */ | |
1592 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1593 | 0, /* rightshift */ | |
1594 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1595 | 16, /* bitsize */ | |
1596 | FALSE, /* pc_relative */ | |
1597 | 0, /* bitpos */ | |
1598 | complain_overflow_signed, /* complain_on_overflow */ | |
1599 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1600 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1601 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1602 | 0, /* src_mask */ |
1603 | 0xffff, /* dst_mask */ | |
b34976b6 | 1604 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1605 | |
411e1bfb AM |
1606 | /* Like GOT_TLSGD16, but no overflow. */ |
1607 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1608 | 0, /* rightshift */ |
1609 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1610 | 16, /* bitsize */ | |
b34976b6 | 1611 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1612 | 0, /* bitpos */ |
1613 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1614 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1615 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1616 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1617 | 0, /* src_mask */ |
1618 | 0xffff, /* dst_mask */ | |
b34976b6 | 1619 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1620 | |
411e1bfb AM |
1621 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1622 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1623 | 16, /* rightshift */ |
1624 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1625 | 16, /* bitsize */ | |
b34976b6 | 1626 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1627 | 0, /* bitpos */ |
1628 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1629 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1630 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1631 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1632 | 0, /* src_mask */ |
1633 | 0xffff, /* dst_mask */ | |
b34976b6 | 1634 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1635 | |
411e1bfb AM |
1636 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1637 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1638 | 16, /* rightshift */ |
1639 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1640 | 16, /* bitsize */ | |
b34976b6 | 1641 | FALSE, /* pc_relative */ |
5bd4f169 | 1642 | 0, /* bitpos */ |
411e1bfb | 1643 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1644 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1645 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1646 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1647 | 0, /* src_mask */ |
1648 | 0xffff, /* dst_mask */ | |
b34976b6 | 1649 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1650 | |
411e1bfb AM |
1651 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1652 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1653 | first entry relative to the TOC base (r2). */ | |
1654 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1655 | 0, /* rightshift */ |
1656 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1657 | 16, /* bitsize */ | |
b34976b6 | 1658 | FALSE, /* pc_relative */ |
5bd4f169 | 1659 | 0, /* bitpos */ |
411e1bfb AM |
1660 | complain_overflow_signed, /* complain_on_overflow */ |
1661 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1662 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1663 | FALSE, /* partial_inplace */ |
d006db6c | 1664 | 0, /* src_mask */ |
411e1bfb | 1665 | 0xffff, /* dst_mask */ |
b34976b6 | 1666 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1667 | |
411e1bfb AM |
1668 | /* Like GOT_TLSLD16, but no overflow. */ |
1669 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1670 | 0, /* rightshift */ |
1671 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1672 | 16, /* bitsize */ | |
b34976b6 | 1673 | FALSE, /* pc_relative */ |
5bd4f169 | 1674 | 0, /* bitpos */ |
411e1bfb AM |
1675 | complain_overflow_dont, /* complain_on_overflow */ |
1676 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1677 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1678 | FALSE, /* partial_inplace */ |
d006db6c | 1679 | 0, /* src_mask */ |
411e1bfb | 1680 | 0xffff, /* dst_mask */ |
b34976b6 | 1681 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1682 | |
411e1bfb AM |
1683 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1684 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1685 | 16, /* rightshift */ | |
5bd4f169 AM |
1686 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1687 | 16, /* bitsize */ | |
b34976b6 | 1688 | FALSE, /* pc_relative */ |
5bd4f169 | 1689 | 0, /* bitpos */ |
411e1bfb | 1690 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1691 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1692 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1693 | FALSE, /* partial_inplace */ |
d006db6c | 1694 | 0, /* src_mask */ |
411e1bfb | 1695 | 0xffff, /* dst_mask */ |
b34976b6 | 1696 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1697 | |
411e1bfb AM |
1698 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1699 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1700 | 16, /* rightshift */ | |
5bd4f169 AM |
1701 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1702 | 16, /* bitsize */ | |
b34976b6 | 1703 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1704 | 0, /* bitpos */ |
1705 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1706 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1707 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1708 | FALSE, /* partial_inplace */ |
d006db6c | 1709 | 0, /* src_mask */ |
411e1bfb | 1710 | 0xffff, /* dst_mask */ |
b34976b6 | 1711 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1712 | |
411e1bfb AM |
1713 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1714 | the offset to the entry relative to the TOC base (r2). */ | |
1715 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1716 | 0, /* rightshift */ |
1717 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1718 | 16, /* bitsize */ | |
b34976b6 | 1719 | FALSE, /* pc_relative */ |
5bd4f169 | 1720 | 0, /* bitpos */ |
411e1bfb | 1721 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1722 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1723 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1724 | FALSE, /* partial_inplace */ |
d006db6c | 1725 | 0, /* src_mask */ |
5bd4f169 | 1726 | 0xfffc, /* dst_mask */ |
b34976b6 | 1727 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1728 | |
411e1bfb AM |
1729 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1730 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1731 | 0, /* rightshift */ |
c061c2d8 AM |
1732 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1733 | 16, /* bitsize */ | |
b34976b6 | 1734 | FALSE, /* pc_relative */ |
5bd4f169 | 1735 | 0, /* bitpos */ |
411e1bfb AM |
1736 | complain_overflow_dont, /* complain_on_overflow */ |
1737 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1738 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1739 | FALSE, /* partial_inplace */ |
d006db6c | 1740 | 0, /* src_mask */ |
c061c2d8 | 1741 | 0xfffc, /* dst_mask */ |
b34976b6 | 1742 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1743 | |
411e1bfb AM |
1744 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1745 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1746 | 16, /* rightshift */ | |
5bd4f169 AM |
1747 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1748 | 16, /* bitsize */ | |
b34976b6 | 1749 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1750 | 0, /* bitpos */ |
1751 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1752 | ppc64_elf_unhandled_reloc, /* special_function */ |
1753 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1754 | FALSE, /* partial_inplace */ |
d006db6c | 1755 | 0, /* src_mask */ |
411e1bfb | 1756 | 0xffff, /* dst_mask */ |
b34976b6 | 1757 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1758 | |
411e1bfb AM |
1759 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1760 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1761 | 16, /* rightshift */ | |
1762 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1763 | 16, /* bitsize */ | |
1764 | FALSE, /* pc_relative */ | |
1765 | 0, /* bitpos */ | |
1766 | complain_overflow_dont, /* complain_on_overflow */ | |
1767 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1768 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1769 | FALSE, /* partial_inplace */ | |
1770 | 0, /* src_mask */ | |
1771 | 0xffff, /* dst_mask */ | |
1772 | FALSE), /* pcrel_offset */ | |
1773 | ||
1774 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1775 | offset to the entry relative to the TOC base (r2). */ | |
1776 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1777 | 0, /* rightshift */ |
1778 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1779 | 16, /* bitsize */ | |
b34976b6 | 1780 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1781 | 0, /* bitpos */ |
1782 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1783 | ppc64_elf_unhandled_reloc, /* special_function */ |
1784 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1785 | FALSE, /* partial_inplace */ |
d006db6c | 1786 | 0, /* src_mask */ |
ad8e1ba5 | 1787 | 0xfffc, /* dst_mask */ |
b34976b6 | 1788 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1789 | |
411e1bfb AM |
1790 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1791 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1792 | 0, /* rightshift */ |
1793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1794 | 16, /* bitsize */ | |
b34976b6 | 1795 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1796 | 0, /* bitpos */ |
1797 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1798 | ppc64_elf_unhandled_reloc, /* special_function */ |
1799 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1800 | FALSE, /* partial_inplace */ |
d006db6c | 1801 | 0, /* src_mask */ |
ad8e1ba5 | 1802 | 0xfffc, /* dst_mask */ |
b34976b6 | 1803 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1804 | |
411e1bfb AM |
1805 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1806 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1807 | 16, /* rightshift */ | |
5bd4f169 AM |
1808 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1809 | 16, /* bitsize */ | |
b34976b6 | 1810 | FALSE, /* pc_relative */ |
5bd4f169 | 1811 | 0, /* bitpos */ |
411e1bfb | 1812 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1813 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1814 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1815 | FALSE, /* partial_inplace */ |
d006db6c | 1816 | 0, /* src_mask */ |
411e1bfb | 1817 | 0xffff, /* dst_mask */ |
b34976b6 | 1818 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1819 | |
411e1bfb AM |
1820 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1821 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1822 | 16, /* rightshift */ | |
5bd4f169 AM |
1823 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1824 | 16, /* bitsize */ | |
b34976b6 | 1825 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1826 | 0, /* bitpos */ |
1827 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1828 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1829 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1830 | FALSE, /* partial_inplace */ |
d006db6c | 1831 | 0, /* src_mask */ |
411e1bfb | 1832 | 0xffff, /* dst_mask */ |
b34976b6 | 1833 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1834 | |
1835 | /* GNU extension to record C++ vtable hierarchy. */ | |
1836 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1837 | 0, /* rightshift */ | |
1838 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1839 | 0, /* bitsize */ | |
b34976b6 | 1840 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1841 | 0, /* bitpos */ |
1842 | complain_overflow_dont, /* complain_on_overflow */ | |
1843 | NULL, /* special_function */ | |
1844 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1845 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1846 | 0, /* src_mask */ |
1847 | 0, /* dst_mask */ | |
b34976b6 | 1848 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1849 | |
1850 | /* GNU extension to record C++ vtable member usage. */ | |
1851 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1852 | 0, /* rightshift */ | |
1853 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1854 | 0, /* bitsize */ | |
b34976b6 | 1855 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1856 | 0, /* bitpos */ |
1857 | complain_overflow_dont, /* complain_on_overflow */ | |
1858 | NULL, /* special_function */ | |
1859 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1860 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1861 | 0, /* src_mask */ |
1862 | 0, /* dst_mask */ | |
b34976b6 | 1863 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1864 | }; |
1865 | ||
1866 | \f | |
1867 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1868 | be done. */ | |
1869 | ||
1870 | static void | |
4ce794b7 | 1871 | ppc_howto_init (void) |
5bd4f169 AM |
1872 | { |
1873 | unsigned int i, type; | |
1874 | ||
1875 | for (i = 0; | |
1876 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1877 | i++) | |
1878 | { | |
1879 | type = ppc64_elf_howto_raw[i].type; | |
1880 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1881 | / sizeof (ppc64_elf_howto_table[0]))); | |
1882 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1883 | } | |
1884 | } | |
1885 | ||
1886 | static reloc_howto_type * | |
4ce794b7 AM |
1887 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1888 | bfd_reloc_code_real_type code) | |
5bd4f169 | 1889 | { |
411e1bfb | 1890 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1891 | |
1892 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1893 | /* Initialize howto table if needed. */ | |
1894 | ppc_howto_init (); | |
1895 | ||
4ce794b7 | 1896 | switch (code) |
5bd4f169 AM |
1897 | { |
1898 | default: | |
4ce794b7 | 1899 | return NULL; |
5bd4f169 | 1900 | |
411e1bfb AM |
1901 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1902 | break; | |
1903 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1904 | break; | |
1905 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1906 | break; | |
1907 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1908 | break; | |
1909 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1910 | break; | |
1911 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1912 | break; | |
1913 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1914 | break; |
411e1bfb | 1915 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1916 | break; |
411e1bfb | 1917 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1918 | break; |
411e1bfb | 1919 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1920 | break; |
411e1bfb | 1921 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1922 | break; |
411e1bfb | 1923 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1924 | break; |
411e1bfb | 1925 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1926 | break; |
411e1bfb | 1927 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1928 | break; |
411e1bfb | 1929 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1930 | break; |
411e1bfb | 1931 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1932 | break; |
411e1bfb | 1933 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1934 | break; |
411e1bfb | 1935 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1936 | break; |
411e1bfb | 1937 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1938 | break; |
411e1bfb | 1939 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1940 | break; |
411e1bfb | 1941 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1942 | break; |
411e1bfb | 1943 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1944 | break; |
411e1bfb | 1945 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1946 | break; |
411e1bfb | 1947 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1948 | break; |
411e1bfb | 1949 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1950 | break; |
411e1bfb | 1951 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1952 | break; |
411e1bfb | 1953 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1954 | break; |
411e1bfb | 1955 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1956 | break; |
411e1bfb | 1957 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1958 | break; |
411e1bfb | 1959 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1960 | break; |
411e1bfb | 1961 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1962 | break; |
411e1bfb | 1963 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1964 | break; |
411e1bfb | 1965 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1966 | break; |
411e1bfb | 1967 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1968 | break; |
411e1bfb | 1969 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1970 | break; |
411e1bfb | 1971 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1972 | break; |
411e1bfb | 1973 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1974 | break; |
411e1bfb | 1975 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1976 | break; |
411e1bfb | 1977 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1978 | break; |
411e1bfb | 1979 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1980 | break; |
411e1bfb | 1981 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1982 | break; |
411e1bfb | 1983 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1984 | break; |
411e1bfb | 1985 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1986 | break; |
411e1bfb | 1987 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1988 | break; |
411e1bfb | 1989 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1990 | break; |
411e1bfb | 1991 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1992 | break; |
411e1bfb | 1993 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1994 | break; |
411e1bfb | 1995 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1996 | break; |
411e1bfb | 1997 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1998 | break; |
411e1bfb | 1999 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 2000 | break; |
411e1bfb | 2001 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 2002 | break; |
411e1bfb | 2003 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 2004 | break; |
411e1bfb | 2005 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 2006 | break; |
411e1bfb | 2007 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 2008 | break; |
411e1bfb | 2009 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 2010 | break; |
411e1bfb | 2011 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 2012 | break; |
411e1bfb | 2013 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 2014 | break; |
411e1bfb | 2015 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 2016 | break; |
411e1bfb | 2017 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 2018 | break; |
411e1bfb | 2019 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 2020 | break; |
411e1bfb | 2021 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2022 | break; |
411e1bfb | 2023 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2024 | break; |
411e1bfb | 2025 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2026 | break; |
411e1bfb | 2027 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2028 | break; |
411e1bfb | 2029 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2030 | break; |
411e1bfb | 2031 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2032 | break; |
411e1bfb AM |
2033 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2034 | break; | |
2035 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2036 | break; | |
2037 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2038 | break; | |
2039 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2040 | break; | |
2041 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2042 | break; | |
2043 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2044 | break; | |
2045 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2046 | break; | |
2047 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2048 | break; | |
2049 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2050 | break; | |
2051 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2052 | break; | |
2053 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2054 | break; | |
2055 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2056 | break; | |
2057 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2058 | break; | |
2059 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2060 | break; | |
2061 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2062 | break; | |
2063 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2064 | break; | |
2065 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2066 | break; | |
2067 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2068 | break; | |
2069 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2070 | break; | |
2071 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2072 | break; | |
2073 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2074 | break; | |
2075 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2076 | break; | |
2077 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2078 | break; | |
2079 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2080 | break; | |
2081 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2082 | break; | |
2083 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2084 | break; | |
2085 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2086 | break; | |
2087 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2088 | break; | |
2089 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2090 | break; | |
2091 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2092 | break; | |
2093 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2094 | break; | |
2095 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2096 | break; | |
2097 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2098 | break; | |
2099 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2100 | break; | |
2101 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2102 | break; |
2103 | } | |
2104 | ||
4ce794b7 | 2105 | return ppc64_elf_howto_table[r]; |
5bd4f169 AM |
2106 | }; |
2107 | ||
2108 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2109 | ||
2110 | static void | |
4ce794b7 AM |
2111 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
2112 | Elf_Internal_Rela *dst) | |
5bd4f169 | 2113 | { |
65f38f15 AM |
2114 | unsigned int type; |
2115 | ||
ef60b7ff | 2116 | /* Initialize howto table if needed. */ |
5bd4f169 | 2117 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2118 | ppc_howto_init (); |
2119 | ||
65f38f15 AM |
2120 | type = ELF64_R_TYPE (dst->r_info); |
2121 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2122 | / sizeof (ppc64_elf_howto_table[0]))); | |
2123 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2124 | } |
2125 | ||
04c9666a | 2126 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2127 | |
2128 | static bfd_reloc_status_type | |
4ce794b7 AM |
2129 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2130 | void *data, asection *input_section, | |
2131 | bfd *output_bfd, char **error_message) | |
5bd4f169 | 2132 | { |
805fc799 AM |
2133 | /* If this is a relocatable link (output_bfd test tells us), just |
2134 | call the generic function. Any adjustment will be done at final | |
2135 | link time. */ | |
2136 | if (output_bfd != NULL) | |
cedb70c5 | 2137 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2138 | input_section, output_bfd, error_message); |
2139 | ||
2140 | /* Adjust the addend for sign extension of the low 16 bits. | |
2141 | We won't actually be using the low 16 bits, so trashing them | |
2142 | doesn't matter. */ | |
2143 | reloc_entry->addend += 0x8000; | |
2144 | return bfd_reloc_continue; | |
2145 | } | |
5bd4f169 | 2146 | |
2441e016 AM |
2147 | static bfd_reloc_status_type |
2148 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2149 | void *data, asection *input_section, | |
2150 | bfd *output_bfd, char **error_message) | |
2151 | { | |
2152 | if (output_bfd != NULL) | |
2153 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2154 | input_section, output_bfd, error_message); | |
2155 | ||
699733f6 AM |
2156 | if (strcmp (symbol->section->name, ".opd") == 0 |
2157 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
2441e016 AM |
2158 | { |
2159 | bfd_vma dest = opd_entry_value (symbol->section, | |
2160 | symbol->value + reloc_entry->addend, | |
2161 | NULL, NULL); | |
2162 | if (dest != (bfd_vma) -1) | |
2163 | reloc_entry->addend = dest - (symbol->value | |
2164 | + symbol->section->output_section->vma | |
2165 | + symbol->section->output_offset); | |
2166 | } | |
2167 | return bfd_reloc_continue; | |
2168 | } | |
2169 | ||
805fc799 | 2170 | static bfd_reloc_status_type |
4ce794b7 AM |
2171 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2172 | void *data, asection *input_section, | |
2173 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2174 | { |
2175 | long insn; | |
04c9666a | 2176 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2177 | bfd_size_type octets; |
2178 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2179 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2180 | |
2181 | /* If this is a relocatable link (output_bfd test tells us), just | |
2182 | call the generic function. Any adjustment will be done at final | |
2183 | link time. */ | |
5bd4f169 | 2184 | if (output_bfd != NULL) |
cedb70c5 | 2185 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2186 | input_section, output_bfd, error_message); |
2187 | ||
2188 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2189 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2190 | insn &= ~(0x01 << 21); | |
4ce794b7 | 2191 | r_type = reloc_entry->howto->type; |
805fc799 AM |
2192 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2193 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2194 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2195 | |
2196 | if (is_power4) | |
5bd4f169 | 2197 | { |
805fc799 AM |
2198 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2199 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2200 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2201 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2202 | insn |= 0x02 << 21; | |
2203 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2204 | insn |= 0x08 << 21; | |
2205 | else | |
2441e016 | 2206 | goto out; |
5bd4f169 | 2207 | } |
805fc799 AM |
2208 | else |
2209 | { | |
2210 | bfd_vma target = 0; | |
2211 | bfd_vma from; | |
5bd4f169 | 2212 | |
805fc799 AM |
2213 | if (!bfd_is_com_section (symbol->section)) |
2214 | target = symbol->value; | |
2215 | target += symbol->section->output_section->vma; | |
2216 | target += symbol->section->output_offset; | |
2217 | target += reloc_entry->addend; | |
5bd4f169 | 2218 | |
805fc799 AM |
2219 | from = (reloc_entry->address |
2220 | + input_section->output_offset | |
2221 | + input_section->output_section->vma); | |
5bd4f169 | 2222 | |
805fc799 AM |
2223 | /* Invert 'y' bit if not the default. */ |
2224 | if ((bfd_signed_vma) (target - from) < 0) | |
2225 | insn ^= 0x01 << 21; | |
2226 | } | |
4ce794b7 | 2227 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
2441e016 AM |
2228 | out: |
2229 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
2230 | input_section, output_bfd, error_message); | |
805fc799 | 2231 | } |
5bd4f169 | 2232 | |
805fc799 | 2233 | static bfd_reloc_status_type |
4ce794b7 AM |
2234 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2235 | void *data, asection *input_section, | |
2236 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2237 | { |
2238 | /* If this is a relocatable link (output_bfd test tells us), just | |
2239 | call the generic function. Any adjustment will be done at final | |
2240 | link time. */ | |
2241 | if (output_bfd != NULL) | |
cedb70c5 | 2242 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2243 | input_section, output_bfd, error_message); |
5bd4f169 | 2244 | |
805fc799 AM |
2245 | /* Subtract the symbol section base address. */ |
2246 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2247 | return bfd_reloc_continue; |
2248 | } | |
2249 | ||
805fc799 | 2250 | static bfd_reloc_status_type |
4ce794b7 AM |
2251 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2252 | void *data, asection *input_section, | |
2253 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2254 | { |
2255 | /* If this is a relocatable link (output_bfd test tells us), just | |
2256 | call the generic function. Any adjustment will be done at final | |
2257 | link time. */ | |
2258 | if (output_bfd != NULL) | |
cedb70c5 | 2259 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2260 | input_section, output_bfd, error_message); |
2261 | ||
2262 | /* Subtract the symbol section base address. */ | |
2263 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2264 | ||
2265 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2266 | reloc_entry->addend += 0x8000; | |
2267 | return bfd_reloc_continue; | |
2268 | } | |
2269 | ||
2270 | static bfd_reloc_status_type | |
4ce794b7 AM |
2271 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2272 | void *data, asection *input_section, | |
2273 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2274 | { |
2275 | bfd_vma TOCstart; | |
2276 | ||
2277 | /* If this is a relocatable link (output_bfd test tells us), just | |
2278 | call the generic function. Any adjustment will be done at final | |
2279 | link time. */ | |
2280 | if (output_bfd != NULL) | |
cedb70c5 | 2281 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2282 | input_section, output_bfd, error_message); |
2283 | ||
2284 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2285 | if (TOCstart == 0) | |
2286 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2287 | ||
2288 | /* Subtract the TOC base address. */ | |
2289 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2290 | return bfd_reloc_continue; | |
2291 | } | |
2292 | ||
2293 | static bfd_reloc_status_type | |
4ce794b7 AM |
2294 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2295 | void *data, asection *input_section, | |
2296 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2297 | { |
2298 | bfd_vma TOCstart; | |
2299 | ||
2300 | /* If this is a relocatable link (output_bfd test tells us), just | |
2301 | call the generic function. Any adjustment will be done at final | |
2302 | link time. */ | |
2303 | if (output_bfd != NULL) | |
cedb70c5 | 2304 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2305 | input_section, output_bfd, error_message); |
2306 | ||
2307 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2308 | if (TOCstart == 0) | |
2309 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2310 | ||
2311 | /* Subtract the TOC base address. */ | |
2312 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2313 | ||
2314 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2315 | reloc_entry->addend += 0x8000; | |
2316 | return bfd_reloc_continue; | |
2317 | } | |
2318 | ||
2319 | static bfd_reloc_status_type | |
4ce794b7 AM |
2320 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2321 | void *data, asection *input_section, | |
2322 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2323 | { |
2324 | bfd_vma TOCstart; | |
2325 | bfd_size_type octets; | |
2326 | ||
2327 | /* If this is a relocatable link (output_bfd test tells us), just | |
2328 | call the generic function. Any adjustment will be done at final | |
2329 | link time. */ | |
2330 | if (output_bfd != NULL) | |
cedb70c5 | 2331 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2332 | input_section, output_bfd, error_message); |
2333 | ||
2334 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2335 | if (TOCstart == 0) | |
2336 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2337 | ||
2338 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2339 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2340 | return bfd_reloc_ok; | |
2341 | } | |
2342 | ||
2343 | static bfd_reloc_status_type | |
4ce794b7 AM |
2344 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2345 | void *data, asection *input_section, | |
2346 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2347 | { |
2348 | /* If this is a relocatable link (output_bfd test tells us), just | |
2349 | call the generic function. Any adjustment will be done at final | |
2350 | link time. */ | |
2351 | if (output_bfd != NULL) | |
cedb70c5 | 2352 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2353 | input_section, output_bfd, error_message); |
2354 | ||
2355 | if (error_message != NULL) | |
2356 | { | |
2357 | static char buf[60]; | |
2358 | sprintf (buf, "generic linker can't handle %s", | |
2359 | reloc_entry->howto->name); | |
2360 | *error_message = buf; | |
2361 | } | |
2362 | return bfd_reloc_dangerous; | |
2363 | } | |
2364 | ||
e717da7e AM |
2365 | struct ppc64_elf_obj_tdata |
2366 | { | |
2367 | struct elf_obj_tdata elf; | |
2368 | ||
2369 | /* Shortcuts to dynamic linker sections. */ | |
2370 | asection *got; | |
2371 | asection *relgot; | |
2372 | ||
81688140 AM |
2373 | /* Used during garbage collection. We attach global symbols defined |
2374 | on removed .opd entries to this section so that the sym is removed. */ | |
2375 | asection *deleted_section; | |
2376 | ||
e717da7e AM |
2377 | /* TLS local dynamic got entry handling. Suppose for multiple GOT |
2378 | sections means we potentially need one of these for each input bfd. */ | |
2379 | union { | |
2380 | bfd_signed_vma refcount; | |
2381 | bfd_vma offset; | |
2382 | } tlsld_got; | |
8860955f AM |
2383 | |
2384 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
2385 | Elf_Internal_Rela *opd_relocs; | |
e717da7e AM |
2386 | }; |
2387 | ||
2388 | #define ppc64_elf_tdata(bfd) \ | |
2389 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
2390 | ||
2391 | #define ppc64_tlsld_got(bfd) \ | |
2392 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
2393 | ||
2394 | /* Override the generic function because we store some extras. */ | |
2395 | ||
2396 | static bfd_boolean | |
2397 | ppc64_elf_mkobject (bfd *abfd) | |
2398 | { | |
2399 | bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata); | |
2400 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
2401 | if (abfd->tdata.any == NULL) | |
2402 | return FALSE; | |
2403 | return TRUE; | |
2404 | } | |
2405 | ||
ee75fd95 AM |
2406 | /* Return 1 if target is one of ours. */ |
2407 | ||
7b53ace3 | 2408 | static bfd_boolean |
ee75fd95 | 2409 | is_ppc64_elf_target (const struct bfd_target *targ) |
7b53ace3 AM |
2410 | { |
2411 | extern const bfd_target bfd_elf64_powerpc_vec; | |
2412 | extern const bfd_target bfd_elf64_powerpcle_vec; | |
2413 | ||
2414 | return targ == &bfd_elf64_powerpc_vec || targ == &bfd_elf64_powerpcle_vec; | |
2415 | } | |
2416 | ||
feee612b AM |
2417 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2418 | default is 32 bit. */ | |
2419 | ||
b34976b6 | 2420 | static bfd_boolean |
4ce794b7 | 2421 | ppc64_elf_object_p (bfd *abfd) |
feee612b AM |
2422 | { |
2423 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2424 | { | |
2425 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2426 | ||
2427 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2428 | { | |
2429 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2430 | abfd->arch_info = abfd->arch_info->next; | |
2431 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2432 | } | |
2433 | } | |
b34976b6 | 2434 | return TRUE; |
feee612b AM |
2435 | } |
2436 | ||
d37c89e5 AM |
2437 | /* Support for core dump NOTE sections. */ |
2438 | ||
2439 | static bfd_boolean | |
2440 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2441 | { | |
eea6121a | 2442 | size_t offset, size; |
d37c89e5 AM |
2443 | |
2444 | if (note->descsz != 504) | |
2445 | return FALSE; | |
2446 | ||
2447 | /* pr_cursig */ | |
2448 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
2449 | ||
2450 | /* pr_pid */ | |
2451 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32); | |
2452 | ||
2453 | /* pr_reg */ | |
2454 | offset = 112; | |
eea6121a | 2455 | size = 384; |
d37c89e5 AM |
2456 | |
2457 | /* Make a ".reg/999" section. */ | |
2458 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 2459 | size, note->descpos + offset); |
d37c89e5 AM |
2460 | } |
2461 | ||
2462 | static bfd_boolean | |
2463 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2464 | { | |
2465 | if (note->descsz != 136) | |
2466 | return FALSE; | |
2467 | ||
2468 | elf_tdata (abfd)->core_program | |
2469 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); | |
2470 | elf_tdata (abfd)->core_command | |
2471 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); | |
2472 | ||
2473 | return TRUE; | |
2474 | } | |
2475 | ||
5bd4f169 AM |
2476 | /* Merge backend specific data from an object file to the output |
2477 | object file when linking. */ | |
2f6d9989 | 2478 | |
b34976b6 | 2479 | static bfd_boolean |
4ce794b7 | 2480 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5bd4f169 | 2481 | { |
5bd4f169 AM |
2482 | /* Check if we have the same endianess. */ |
2483 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2484 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2485 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2486 | { | |
2487 | const char *msg; | |
2488 | ||
2489 | if (bfd_big_endian (ibfd)) | |
d003868e | 2490 | msg = _("%B: compiled for a big endian system " |
4ce794b7 | 2491 | "and target is little endian"); |
5bd4f169 | 2492 | else |
d003868e | 2493 | msg = _("%B: compiled for a little endian system " |
4ce794b7 | 2494 | "and target is big endian"); |
5bd4f169 | 2495 | |
d003868e | 2496 | (*_bfd_error_handler) (msg, ibfd); |
5bd4f169 AM |
2497 | |
2498 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2499 | return FALSE; |
5bd4f169 AM |
2500 | } |
2501 | ||
b34976b6 | 2502 | return TRUE; |
5bd4f169 | 2503 | } |
f0abc2a1 | 2504 | |
5d35169e AM |
2505 | /* Add extra PPC sections. */ |
2506 | ||
2507 | static struct bfd_elf_special_section const ppc64_elf_special_sections[]= | |
2508 | { | |
7dcb9820 AM |
2509 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2510 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2511 | { ".plt", 4, 0, SHT_NOBITS, 0 }, | |
2512 | { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2513 | { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2514 | { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2515 | { NULL, 0, 0, 0, 0 } | |
5d35169e AM |
2516 | }; |
2517 | ||
f0abc2a1 AM |
2518 | struct _ppc64_elf_section_data |
2519 | { | |
2520 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2521 | |
2522 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2523 | union |
2524 | { | |
411e1bfb | 2525 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2526 | asection **func_sec; |
411e1bfb | 2527 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2528 | long *adjust; |
2529 | } opd; | |
411e1bfb AM |
2530 | |
2531 | /* An array for toc sections, indexed by offset/8. | |
2532 | Specifies the relocation symbol index used at a given toc offset. */ | |
2533 | unsigned *t_symndx; | |
f0abc2a1 AM |
2534 | }; |
2535 | ||
2536 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2537 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2538 | |
2539 | static bfd_boolean | |
4ce794b7 | 2540 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
f0abc2a1 AM |
2541 | { |
2542 | struct _ppc64_elf_section_data *sdata; | |
2543 | bfd_size_type amt = sizeof (*sdata); | |
2544 | ||
4ce794b7 | 2545 | sdata = bfd_zalloc (abfd, amt); |
f0abc2a1 AM |
2546 | if (sdata == NULL) |
2547 | return FALSE; | |
4ce794b7 | 2548 | sec->used_by_bfd = sdata; |
f0abc2a1 AM |
2549 | |
2550 | return _bfd_elf_new_section_hook (abfd, sec); | |
2551 | } | |
4025353c AM |
2552 | |
2553 | static void * | |
2554 | get_opd_info (asection * sec) | |
2555 | { | |
2556 | if (sec != NULL | |
2557 | && ppc64_elf_section_data (sec) != NULL | |
2558 | && ppc64_elf_section_data (sec)->opd.adjust != NULL) | |
2559 | return ppc64_elf_section_data (sec)->opd.adjust; | |
2560 | return NULL; | |
2561 | } | |
90e3cdf2 JJ |
2562 | \f |
2563 | /* Parameters for the qsort hook. */ | |
2564 | static asection *synthetic_opd; | |
2565 | static bfd_boolean synthetic_relocatable; | |
2566 | ||
699733f6 | 2567 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
90e3cdf2 JJ |
2568 | |
2569 | static int | |
2570 | compare_symbols (const void *ap, const void *bp) | |
2571 | { | |
2572 | const asymbol *a = * (const asymbol **) ap; | |
2573 | const asymbol *b = * (const asymbol **) bp; | |
2574 | ||
699733f6 AM |
2575 | /* Section symbols first. */ |
2576 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
90e3cdf2 | 2577 | return -1; |
699733f6 | 2578 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
90e3cdf2 JJ |
2579 | return 1; |
2580 | ||
699733f6 | 2581 | /* then .opd symbols. */ |
90e3cdf2 JJ |
2582 | if (a->section == synthetic_opd && b->section != synthetic_opd) |
2583 | return -1; | |
2584 | if (a->section != synthetic_opd && b->section == synthetic_opd) | |
2585 | return 1; | |
2586 | ||
699733f6 | 2587 | /* then other code symbols. */ |
90e3cdf2 JJ |
2588 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
2589 | == (SEC_CODE | SEC_ALLOC) | |
2590 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2591 | != (SEC_CODE | SEC_ALLOC)) | |
2592 | return -1; | |
2593 | ||
2594 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2595 | != (SEC_CODE | SEC_ALLOC) | |
2596 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2597 | == (SEC_CODE | SEC_ALLOC)) | |
2598 | return 1; | |
2599 | ||
2600 | if (synthetic_relocatable) | |
2601 | { | |
2602 | if (a->section->id < b->section->id) | |
2603 | return -1; | |
2604 | ||
2605 | if (a->section->id > b->section->id) | |
2606 | return 1; | |
2607 | } | |
2608 | ||
2609 | if (a->value + a->section->vma < b->value + b->section->vma) | |
2610 | return -1; | |
2611 | ||
2612 | if (a->value + a->section->vma > b->value + b->section->vma) | |
2613 | return 1; | |
2614 | ||
2615 | return 0; | |
2616 | } | |
2617 | ||
699733f6 | 2618 | /* Search SYMS for a symbol of the given VALUE. */ |
90e3cdf2 | 2619 | |
699733f6 AM |
2620 | static asymbol * |
2621 | sym_exists_at (asymbol **syms, long lo, long hi, int id, bfd_vma value) | |
90e3cdf2 | 2622 | { |
699733f6 | 2623 | long mid; |
90e3cdf2 | 2624 | |
699733f6 AM |
2625 | if (id == -1) |
2626 | { | |
2627 | while (lo < hi) | |
2628 | { | |
2629 | mid = (lo + hi) >> 1; | |
2630 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
2631 | lo = mid + 1; | |
2632 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
2633 | hi = mid; | |
2634 | else | |
2635 | return syms[mid]; | |
2636 | } | |
2637 | } | |
2638 | else | |
2639 | { | |
2640 | while (lo < hi) | |
2641 | { | |
2642 | mid = (lo + hi) >> 1; | |
2643 | if (syms[mid]->section->id < id) | |
2644 | lo = mid + 1; | |
2645 | else if (syms[mid]->section->id > id) | |
2646 | hi = mid; | |
2647 | else if (syms[mid]->value < value) | |
2648 | lo = mid + 1; | |
2649 | else if (syms[mid]->value > value) | |
2650 | hi = mid; | |
2651 | else | |
2652 | return syms[mid]; | |
2653 | } | |
2654 | } | |
2655 | return NULL; | |
90e3cdf2 JJ |
2656 | } |
2657 | ||
699733f6 AM |
2658 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
2659 | entry syms. */ | |
90e3cdf2 JJ |
2660 | |
2661 | static long | |
a7535cf3 AM |
2662 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
2663 | long static_count, asymbol **static_syms, | |
2664 | long dyn_count, asymbol **dyn_syms, | |
c9727e01 | 2665 | asymbol **ret) |
90e3cdf2 JJ |
2666 | { |
2667 | asymbol *s; | |
699733f6 AM |
2668 | long i; |
2669 | long count; | |
90e3cdf2 | 2670 | char *names; |
a7535cf3 | 2671 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
699733f6 | 2672 | asection *opd; |
90e3cdf2 | 2673 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
a7535cf3 | 2674 | asymbol **syms; |
90e3cdf2 JJ |
2675 | |
2676 | *ret = NULL; | |
2677 | ||
2678 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
2679 | if (opd == NULL) | |
2680 | return 0; | |
2681 | ||
a7535cf3 | 2682 | symcount = static_count; |
c9727e01 | 2683 | if (!relocatable) |
a7535cf3 | 2684 | symcount += dyn_count; |
90e3cdf2 | 2685 | if (symcount == 0) |
c9727e01 | 2686 | return 0; |
90e3cdf2 | 2687 | |
a7535cf3 AM |
2688 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
2689 | if (syms == NULL) | |
2690 | return 0; | |
2691 | ||
2692 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
2693 | { | |
2694 | /* Use both symbol tables. */ | |
2695 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
2696 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
2697 | } | |
2698 | else if (!relocatable && static_count == 0) | |
2699 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
2700 | else | |
2701 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
2702 | ||
90e3cdf2 JJ |
2703 | synthetic_opd = opd; |
2704 | synthetic_relocatable = relocatable; | |
595da8c5 | 2705 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
90e3cdf2 | 2706 | |
c9727e01 AM |
2707 | if (!relocatable && symcount > 1) |
2708 | { | |
2709 | long j; | |
2710 | /* Trim duplicate syms, since we may have merged the normal and | |
2711 | dynamic symbols. Actually, we only care about syms that have | |
2712 | different values, so trim any with the same value. */ | |
2713 | for (i = 1, j = 1; i < symcount; ++i) | |
2714 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
2715 | != syms[i]->value + syms[i]->section->vma) | |
2716 | syms[j++] = syms[i]; | |
2717 | symcount = j; | |
2718 | } | |
2719 | ||
699733f6 AM |
2720 | i = 0; |
2721 | if (syms[i]->section == opd) | |
2722 | ++i; | |
2723 | codesecsym = i; | |
90e3cdf2 | 2724 | |
699733f6 AM |
2725 | for (; i < symcount; ++i) |
2726 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2727 | != (SEC_CODE | SEC_ALLOC)) | |
2728 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
2729 | break; | |
2730 | codesecsymend = i; | |
90e3cdf2 | 2731 | |
699733f6 AM |
2732 | for (; i < symcount; ++i) |
2733 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
2734 | break; | |
2735 | secsymend = i; | |
90e3cdf2 | 2736 | |
699733f6 AM |
2737 | for (; i < symcount; ++i) |
2738 | if (syms[i]->section != opd) | |
2739 | break; | |
2740 | opdsymend = i; | |
90e3cdf2 | 2741 | |
699733f6 AM |
2742 | for (; i < symcount; ++i) |
2743 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
2744 | != (SEC_CODE | SEC_ALLOC)) | |
2745 | break; | |
2746 | symcount = i; | |
2747 | ||
c9727e01 | 2748 | count = 0; |
699733f6 | 2749 | if (opdsymend == secsymend) |
c9727e01 | 2750 | goto done; |
90e3cdf2 | 2751 | |
699733f6 | 2752 | if (relocatable) |
90e3cdf2 | 2753 | { |
699733f6 AM |
2754 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
2755 | arelent *r; | |
2756 | size_t size; | |
2757 | long relcount; | |
90e3cdf2 | 2758 | |
699733f6 | 2759 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
90e3cdf2 JJ |
2760 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
2761 | ||
2762 | if (! relcount | |
595da8c5 | 2763 | || ! (*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
c9727e01 | 2764 | goto done; |
90e3cdf2 | 2765 | |
699733f6 | 2766 | size = 0; |
595da8c5 | 2767 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
699733f6 AM |
2768 | { |
2769 | asymbol *sym; | |
90e3cdf2 | 2770 | |
595da8c5 | 2771 | while (r < opd->relocation + relcount |
699733f6 AM |
2772 | && r->address < syms[i]->value + opd->vma) |
2773 | ++r; | |
90e3cdf2 | 2774 | |
595da8c5 | 2775 | if (r == opd->relocation + relcount) |
699733f6 | 2776 | break; |
90e3cdf2 | 2777 | |
699733f6 AM |
2778 | if (r->address != syms[i]->value + opd->vma) |
2779 | continue; | |
90e3cdf2 | 2780 | |
699733f6 AM |
2781 | if (r->howto->type != R_PPC64_ADDR64) |
2782 | continue; | |
90e3cdf2 | 2783 | |
699733f6 AM |
2784 | sym = *r->sym_ptr_ptr; |
2785 | if (!sym_exists_at (syms, opdsymend, symcount, | |
2786 | sym->section->id, sym->value + r->addend)) | |
2787 | { | |
2788 | ++count; | |
2789 | size += sizeof (asymbol); | |
2790 | size += strlen (syms[i]->name) + 2; | |
2791 | } | |
2792 | } | |
90e3cdf2 | 2793 | |
699733f6 AM |
2794 | s = *ret = bfd_malloc (size); |
2795 | if (s == NULL) | |
2796 | { | |
c9727e01 AM |
2797 | count = 0; |
2798 | goto done; | |
699733f6 | 2799 | } |
90e3cdf2 | 2800 | |
699733f6 | 2801 | names = (char *) (s + count); |
90e3cdf2 | 2802 | |
595da8c5 | 2803 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
90e3cdf2 | 2804 | { |
699733f6 | 2805 | asymbol *sym; |
90e3cdf2 | 2806 | |
595da8c5 | 2807 | while (r < opd->relocation + relcount |
699733f6 AM |
2808 | && r->address < syms[i]->value + opd->vma) |
2809 | ++r; | |
90e3cdf2 | 2810 | |
595da8c5 | 2811 | if (r == opd->relocation + relcount) |
699733f6 AM |
2812 | break; |
2813 | ||
2814 | if (r->address != syms[i]->value + opd->vma) | |
2815 | continue; | |
2816 | ||
2817 | if (r->howto->type != R_PPC64_ADDR64) | |
2818 | continue; | |
90e3cdf2 | 2819 | |
699733f6 AM |
2820 | sym = *r->sym_ptr_ptr; |
2821 | if (!sym_exists_at (syms, opdsymend, symcount, | |
2822 | sym->section->id, sym->value + r->addend)) | |
2823 | { | |
2824 | size_t len; | |
2825 | ||
2826 | *s = *syms[i]; | |
2827 | s->section = sym->section; | |
2828 | s->value = sym->value + r->addend; | |
2829 | s->name = names; | |
2830 | *names++ = '.'; | |
2831 | len = strlen (syms[i]->name); | |
2832 | memcpy (names, syms[i]->name, len + 1); | |
2833 | names += len + 1; | |
2834 | s++; | |
2835 | } | |
2836 | } | |
2837 | } | |
2838 | else | |
90e3cdf2 | 2839 | { |
699733f6 AM |
2840 | bfd_byte *contents; |
2841 | size_t size; | |
90e3cdf2 | 2842 | |
699733f6 AM |
2843 | if (!bfd_malloc_and_get_section (abfd, opd, &contents)) |
2844 | { | |
2845 | if (contents) | |
c9727e01 AM |
2846 | { |
2847 | free_contents_and_exit: | |
2848 | free (contents); | |
2849 | } | |
2850 | goto done; | |
699733f6 | 2851 | } |
90e3cdf2 | 2852 | |
699733f6 AM |
2853 | size = 0; |
2854 | for (i = secsymend; i < opdsymend; ++i) | |
2855 | { | |
2856 | bfd_vma ent; | |
90e3cdf2 | 2857 | |
699733f6 AM |
2858 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
2859 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
2860 | { | |
2861 | ++count; | |
2862 | size += sizeof (asymbol); | |
2863 | size += strlen (syms[i]->name) + 2; | |
2864 | } | |
2865 | } | |
90e3cdf2 | 2866 | |
699733f6 AM |
2867 | s = *ret = bfd_malloc (size); |
2868 | if (s == NULL) | |
2869 | { | |
c9727e01 AM |
2870 | count = 0; |
2871 | goto free_contents_and_exit; | |
699733f6 | 2872 | } |
90e3cdf2 | 2873 | |
699733f6 | 2874 | names = (char *) (s + count); |
90e3cdf2 | 2875 | |
699733f6 | 2876 | for (i = secsymend; i < opdsymend; ++i) |
90e3cdf2 | 2877 | { |
699733f6 | 2878 | bfd_vma ent; |
90e3cdf2 | 2879 | |
699733f6 AM |
2880 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
2881 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
90e3cdf2 | 2882 | { |
c9727e01 | 2883 | long lo, hi; |
699733f6 | 2884 | size_t len; |
c9727e01 | 2885 | asection *sec = abfd->sections; |
90e3cdf2 | 2886 | |
699733f6 AM |
2887 | *s = *syms[i]; |
2888 | lo = codesecsym; | |
2889 | hi = codesecsymend; | |
2890 | while (lo < hi) | |
2891 | { | |
c9727e01 | 2892 | long mid = (lo + hi) >> 1; |
699733f6 AM |
2893 | if (syms[mid]->section->vma < ent) |
2894 | lo = mid + 1; | |
2895 | else if (syms[mid]->section->vma > ent) | |
2896 | hi = mid; | |
2897 | else | |
c9727e01 AM |
2898 | { |
2899 | sec = syms[mid]->section; | |
2900 | break; | |
2901 | } | |
699733f6 AM |
2902 | } |
2903 | ||
c9727e01 | 2904 | if (lo >= hi && lo > codesecsym) |
699733f6 | 2905 | sec = syms[lo - 1]->section; |
699733f6 AM |
2906 | |
2907 | for (; sec != NULL; sec = sec->next) | |
2908 | { | |
2909 | if (sec->vma > ent) | |
2910 | break; | |
2911 | if ((sec->flags & SEC_ALLOC) == 0 | |
2912 | || (sec->flags & SEC_LOAD) == 0) | |
2913 | break; | |
2914 | if ((sec->flags & SEC_CODE) != 0) | |
2915 | s->section = sec; | |
2916 | } | |
2917 | s->value = ent - s->section->vma; | |
2918 | s->name = names; | |
2919 | *names++ = '.'; | |
2920 | len = strlen (syms[i]->name); | |
2921 | memcpy (names, syms[i]->name, len + 1); | |
2922 | names += len + 1; | |
2923 | s++; | |
90e3cdf2 | 2924 | } |
90e3cdf2 | 2925 | } |
699733f6 | 2926 | free (contents); |
90e3cdf2 JJ |
2927 | } |
2928 | ||
c9727e01 | 2929 | done: |
a7535cf3 | 2930 | free (syms); |
90e3cdf2 JJ |
2931 | return count; |
2932 | } | |
5bd4f169 | 2933 | \f |
65f38f15 AM |
2934 | /* The following functions are specific to the ELF linker, while |
2935 | functions above are used generally. Those named ppc64_elf_* are | |
2936 | called by the main ELF linker code. They appear in this file more | |
2937 | or less in the order in which they are called. eg. | |
2938 | ppc64_elf_check_relocs is called early in the link process, | |
2939 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2940 | called. |
2941 | ||
2942 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2943 | functions have both a function code symbol and a function descriptor | |
2944 | symbol. A call to foo in a relocatable object file looks like: | |
2945 | ||
2946 | . .text | |
2947 | . x: | |
2948 | . bl .foo | |
2949 | . nop | |
2950 | ||
2951 | The function definition in another object file might be: | |
2952 | ||
2953 | . .section .opd | |
2954 | . foo: .quad .foo | |
2955 | . .quad .TOC.@tocbase | |
2956 | . .quad 0 | |
2957 | . | |
2958 | . .text | |
2959 | . .foo: blr | |
2960 | ||
2961 | When the linker resolves the call during a static link, the branch | |
2962 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2963 | If the function definition is in a shared library, things are a little | |
2964 | different: The call goes via a plt call stub, the opd information gets | |
2965 | copied to the plt, and the linker patches the nop. | |
2966 | ||
2967 | . x: | |
2968 | . bl .foo_stub | |
2969 | . ld 2,40(1) | |
2970 | . | |
2971 | . | |
2972 | . .foo_stub: | |
2973 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2974 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2975 | . std 2,40(1) # this is the general idea |
2976 | . ld 11,0(12) | |
2977 | . ld 2,8(12) | |
2978 | . mtctr 11 | |
2979 | . ld 11,16(12) | |
2980 | . bctr | |
2981 | . | |
2982 | . .section .plt | |
2983 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2984 | ||
2985 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2986 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2987 | copying. | |
2988 | ||
2989 | What are the difficulties here? Well, firstly, the relocations | |
2990 | examined by the linker in check_relocs are against the function code | |
2991 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2992 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2993 | to carefully copy dynamic link information from one symbol to the other. | |
2994 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2995 | symbol as is normal for most other backends. We need foo dynamic | |
2996 | instead, at least for an application final link. However, when | |
2997 | creating a shared library containing foo, we need to have both symbols | |
2998 | dynamic so that references to .foo are satisfied during the early | |
2999 | stages of linking. Otherwise the linker might decide to pull in a | |
8387904d AM |
3000 | definition from some other object, eg. a static library. |
3001 | ||
3002 | Update: As of August 2004, we support a new convention. Function | |
3003 | calls may use the function descriptor symbol, ie. "bl foo". This | |
3004 | behaves exactly as "bl .foo". */ | |
65f38f15 AM |
3005 | |
3006 | /* The linker needs to keep track of the number of relocs that it | |
3007 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
3008 | This is so that it can later discard them if they are found to be | |
3009 | unnecessary. We store the information in a field extending the | |
3010 | regular ELF linker hash table. */ | |
3011 | ||
3012 | struct ppc_dyn_relocs | |
3013 | { | |
3014 | struct ppc_dyn_relocs *next; | |
3015 | ||
3016 | /* The input section of the reloc. */ | |
3017 | asection *sec; | |
3018 | ||
3019 | /* Total number of relocs copied for the input section. */ | |
3020 | bfd_size_type count; | |
3021 | ||
3022 | /* Number of pc-relative relocs copied for the input section. */ | |
3023 | bfd_size_type pc_count; | |
3024 | }; | |
3025 | ||
411e1bfb AM |
3026 | /* Track GOT entries needed for a given symbol. We might need more |
3027 | than one got entry per symbol. */ | |
3028 | struct got_entry | |
3029 | { | |
3030 | struct got_entry *next; | |
3031 | ||
e7b938ca | 3032 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
3033 | bfd_vma addend; |
3034 | ||
e717da7e AM |
3035 | /* Unlike other ELF targets, we use separate GOT entries for the same |
3036 | symbol referenced from different input files. This is to support | |
3037 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
3038 | from one input file to another. | |
3039 | ||
3040 | Point to the BFD owning this GOT entry. */ | |
3041 | bfd *owner; | |
3042 | ||
3043 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
3044 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
3045 | char tls_type; | |
3046 | ||
e7b938ca | 3047 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
3048 | union |
3049 | { | |
3050 | bfd_signed_vma refcount; | |
3051 | bfd_vma offset; | |
3052 | } got; | |
411e1bfb AM |
3053 | }; |
3054 | ||
3055 | /* The same for PLT. */ | |
3056 | struct plt_entry | |
3057 | { | |
3058 | struct plt_entry *next; | |
3059 | ||
3060 | bfd_vma addend; | |
3061 | ||
3062 | union | |
3063 | { | |
3064 | bfd_signed_vma refcount; | |
3065 | bfd_vma offset; | |
3066 | } plt; | |
3067 | }; | |
3068 | ||
65f38f15 | 3069 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
3070 | selects those that must be copied when linking a shared library, |
3071 | even when the symbol is local. */ | |
65f38f15 | 3072 | |
411e1bfb | 3073 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
3074 | ((RTYPE) != R_PPC64_REL32 \ |
3075 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 3076 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 3077 | |
f4656909 AM |
3078 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3079 | copying dynamic variables from a shared lib into an app's dynbss | |
3080 | section, and instead use a dynamic relocation to point into the | |
5d35169e AM |
3081 | shared lib. With code that gcc generates, it's vital that this be |
3082 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
3083 | the address of a function descriptor, which resides in the .opd | |
3084 | section. gcc uses the descriptor directly rather than going via the | |
3085 | GOT as some other ABI's do, which means that initialized function | |
3086 | pointers must reference the descriptor. Thus, a function pointer | |
3087 | initialized to the address of a function in a shared library will | |
3088 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
4cc11e76 | 3089 | redefines the function descriptor symbol to point to the copy. This |
5d35169e AM |
3090 | presents a problem as a plt entry for that function is also |
3091 | initialized from the function descriptor symbol and the copy reloc | |
3092 | may not be initialized first. */ | |
a23b6845 | 3093 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 3094 | |
721956f4 AM |
3095 | /* Section name for stubs is the associated section name plus this |
3096 | string. */ | |
3097 | #define STUB_SUFFIX ".stub" | |
3098 | ||
3099 | /* Linker stubs. | |
3100 | ppc_stub_long_branch: | |
3101 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
3102 | destination, but a 24 bit branch in a stub section will reach. | |
3103 | . b dest | |
3104 | ||
3105 | ppc_stub_plt_branch: | |
3106 | Similar to the above, but a 24 bit branch in the stub section won't | |
3107 | reach its destination. | |
87e226ce AM |
3108 | . addis %r12,%r2,xxx@toc@ha |
3109 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
3110 | . mtctr %r11 |
3111 | . bctr | |
3112 | ||
3113 | ppc_stub_plt_call: | |
2c66dc6c AM |
3114 | Used to call a function in a shared library. If it so happens that |
3115 | the plt entry referenced crosses a 64k boundary, then an extra | |
3116 | "addis %r12,%r12,1" will be inserted before the load at xxx+8 or | |
3117 | xxx+16 as appropriate. | |
87e226ce | 3118 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 3119 | . std %r2,40(%r1) |
87e226ce AM |
3120 | . ld %r11,xxx+0@toc@l(%r12) |
3121 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 3122 | . mtctr %r11 |
87e226ce | 3123 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 3124 | . bctr |
ad8e1ba5 AM |
3125 | |
3126 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
3127 | code to adjust the value and save r2 to support multiple toc sections. | |
3128 | A ppc_stub_long_branch with an r2 offset looks like: | |
3129 | . std %r2,40(%r1) | |
3130 | . addis %r2,%r2,off@ha | |
3131 | . addi %r2,%r2,off@l | |
3132 | . b dest | |
3133 | ||
3134 | A ppc_stub_plt_branch with an r2 offset looks like: | |
3135 | . std %r2,40(%r1) | |
3136 | . addis %r12,%r2,xxx@toc@ha | |
3137 | . ld %r11,xxx@toc@l(%r12) | |
3138 | . addis %r2,%r2,off@ha | |
3139 | . addi %r2,%r2,off@l | |
3140 | . mtctr %r11 | |
3141 | . bctr | |
721956f4 AM |
3142 | */ |
3143 | ||
3144 | enum ppc_stub_type { | |
3145 | ppc_stub_none, | |
3146 | ppc_stub_long_branch, | |
ad8e1ba5 | 3147 | ppc_stub_long_branch_r2off, |
721956f4 | 3148 | ppc_stub_plt_branch, |
ad8e1ba5 | 3149 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
3150 | ppc_stub_plt_call |
3151 | }; | |
3152 | ||
3153 | struct ppc_stub_hash_entry { | |
3154 | ||
3155 | /* Base hash table entry structure. */ | |
3156 | struct bfd_hash_entry root; | |
3157 | ||
ad8e1ba5 AM |
3158 | enum ppc_stub_type stub_type; |
3159 | ||
721956f4 AM |
3160 | /* The stub section. */ |
3161 | asection *stub_sec; | |
3162 | ||
3163 | /* Offset within stub_sec of the beginning of this stub. */ | |
3164 | bfd_vma stub_offset; | |
3165 | ||
3166 | /* Given the symbol's value and its section we can determine its final | |
3167 | value when building the stubs (so the stub knows where to jump. */ | |
3168 | bfd_vma target_value; | |
3169 | asection *target_section; | |
3170 | ||
721956f4 AM |
3171 | /* The symbol table entry, if any, that this was derived from. */ |
3172 | struct ppc_link_hash_entry *h; | |
3173 | ||
411e1bfb AM |
3174 | /* And the reloc addend that this was derived from. */ |
3175 | bfd_vma addend; | |
3176 | ||
721956f4 AM |
3177 | /* Where this stub is being called from, or, in the case of combined |
3178 | stub sections, the first input section in the group. */ | |
3179 | asection *id_sec; | |
3180 | }; | |
3181 | ||
3182 | struct ppc_branch_hash_entry { | |
3183 | ||
3184 | /* Base hash table entry structure. */ | |
3185 | struct bfd_hash_entry root; | |
3186 | ||
3187 | /* Offset within .branch_lt. */ | |
3188 | unsigned int offset; | |
3189 | ||
3190 | /* Generation marker. */ | |
3191 | unsigned int iter; | |
3192 | }; | |
65f38f15 AM |
3193 | |
3194 | struct ppc_link_hash_entry | |
3195 | { | |
3196 | struct elf_link_hash_entry elf; | |
3197 | ||
721956f4 AM |
3198 | /* A pointer to the most recently used stub hash entry against this |
3199 | symbol. */ | |
3200 | struct ppc_stub_hash_entry *stub_cache; | |
3201 | ||
65f38f15 AM |
3202 | /* Track dynamic relocs copied for this symbol. */ |
3203 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 3204 | |
721956f4 | 3205 | /* Link between function code and descriptor symbols. */ |
34814b9f | 3206 | struct ppc_link_hash_entry *oh; |
721956f4 | 3207 | |
e86ce104 AM |
3208 | /* Flag function code and descriptor symbols. */ |
3209 | unsigned int is_func:1; | |
3210 | unsigned int is_func_descriptor:1; | |
411e1bfb | 3211 | |
c5614fa4 AM |
3212 | /* Whether global opd/toc sym has been adjusted or not. |
3213 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
3214 | should be set for all globals defined in any opd/toc section. */ | |
754021d0 AM |
3215 | unsigned int adjust_done:1; |
3216 | ||
99877b66 AM |
3217 | /* Set if we twiddled this symbol to weak at some stage. */ |
3218 | unsigned int was_undefined:1; | |
3219 | ||
411e1bfb | 3220 | /* Contexts in which symbol is used in the GOT (or TOC). |
e7b938ca AM |
3221 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
3222 | corresponding relocs are encountered during check_relocs. | |
3223 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3224 | indicate the corresponding GOT entry type is not needed. | |
3225 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
3226 | a TPREL one. We use a separate flag rather than setting TPREL | |
3227 | just for convenience in distinguishing the two cases. */ | |
3228 | #define TLS_GD 1 /* GD reloc. */ | |
3229 | #define TLS_LD 2 /* LD reloc. */ | |
3230 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3231 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3232 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3233 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
3234 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
3235 | char tls_mask; | |
65f38f15 AM |
3236 | }; |
3237 | ||
3238 | /* ppc64 ELF linker hash table. */ | |
3239 | ||
3240 | struct ppc_link_hash_table | |
3241 | { | |
3242 | struct elf_link_hash_table elf; | |
3243 | ||
721956f4 AM |
3244 | /* The stub hash table. */ |
3245 | struct bfd_hash_table stub_hash_table; | |
3246 | ||
3247 | /* Another hash table for plt_branch stubs. */ | |
3248 | struct bfd_hash_table branch_hash_table; | |
3249 | ||
3250 | /* Linker stub bfd. */ | |
3251 | bfd *stub_bfd; | |
3252 | ||
3253 | /* Linker call-backs. */ | |
4ce794b7 AM |
3254 | asection * (*add_stub_section) (const char *, asection *); |
3255 | void (*layout_sections_again) (void); | |
721956f4 AM |
3256 | |
3257 | /* Array to keep track of which stub sections have been created, and | |
3258 | information on stub grouping. */ | |
3259 | struct map_stub { | |
3260 | /* This is the section to which stubs in the group will be attached. */ | |
3261 | asection *link_sec; | |
3262 | /* The stub section. */ | |
3263 | asection *stub_sec; | |
ad8e1ba5 AM |
3264 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
3265 | bfd_vma toc_off; | |
721956f4 AM |
3266 | } *stub_group; |
3267 | ||
ad8e1ba5 AM |
3268 | /* Temp used when calculating TOC pointers. */ |
3269 | bfd_vma toc_curr; | |
3270 | ||
8f3bab57 AM |
3271 | /* Highest input section id. */ |
3272 | int top_id; | |
3273 | ||
734b6cf9 AM |
3274 | /* Highest output section index. */ |
3275 | int top_index; | |
3276 | ||
3277 | /* List of input sections for each output section. */ | |
3278 | asection **input_list; | |
721956f4 | 3279 | |
65f38f15 | 3280 | /* Short-cuts to get to dynamic linker sections. */ |
4ce794b7 | 3281 | asection *got; |
4ce794b7 AM |
3282 | asection *plt; |
3283 | asection *relplt; | |
3284 | asection *dynbss; | |
3285 | asection *relbss; | |
3286 | asection *glink; | |
82bd7b59 | 3287 | asection *sfpr; |
4ce794b7 AM |
3288 | asection *brlt; |
3289 | asection *relbrlt; | |
ec338859 | 3290 | |
8387904d AM |
3291 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
3292 | struct ppc_link_hash_entry *tls_get_addr; | |
3293 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
411e1bfb | 3294 | |
9b5ecbd0 AM |
3295 | /* Statistics. */ |
3296 | unsigned long stub_count[ppc_stub_plt_call]; | |
3297 | ||
ee75fd95 AM |
3298 | /* Number of stubs against global syms. */ |
3299 | unsigned long stub_globals; | |
3300 | ||
ad8e1ba5 | 3301 | /* Set if we should emit symbols for stubs. */ |
99877b66 | 3302 | unsigned int emit_stub_syms:1; |
ad8e1ba5 | 3303 | |
5d1634d7 | 3304 | /* Set on error. */ |
99877b66 | 3305 | unsigned int stub_error:1; |
721956f4 AM |
3306 | |
3307 | /* Flag set when small branches are detected. Used to | |
3308 | select suitable defaults for the stub group size. */ | |
99877b66 AM |
3309 | unsigned int has_14bit_branch:1; |
3310 | ||
3311 | /* Temp used by ppc64_elf_check_directives. */ | |
3312 | unsigned int twiddled_syms:1; | |
721956f4 AM |
3313 | |
3314 | /* Incremented every time we size stubs. */ | |
3315 | unsigned int stub_iteration; | |
5d1634d7 | 3316 | |
ec338859 AM |
3317 | /* Small local sym to section mapping cache. */ |
3318 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
3319 | }; |
3320 | ||
3321 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ | |
3322 | ||
3323 | #define ppc_hash_table(p) \ | |
3324 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
3325 | ||
721956f4 AM |
3326 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
3327 | ((struct ppc_stub_hash_entry *) \ | |
3328 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
3329 | ||
3330 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
3331 | ((struct ppc_branch_hash_entry *) \ | |
3332 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
3333 | ||
3334 | /* Create an entry in the stub hash table. */ | |
3335 | ||
3336 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3337 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
3338 | struct bfd_hash_table *table, | |
3339 | const char *string) | |
721956f4 AM |
3340 | { |
3341 | /* Allocate the structure if it has not already been allocated by a | |
3342 | subclass. */ | |
3343 | if (entry == NULL) | |
3344 | { | |
3345 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
3346 | if (entry == NULL) | |
3347 | return entry; | |
3348 | } | |
3349 | ||
3350 | /* Call the allocation method of the superclass. */ | |
3351 | entry = bfd_hash_newfunc (entry, table, string); | |
3352 | if (entry != NULL) | |
3353 | { | |
3354 | struct ppc_stub_hash_entry *eh; | |
3355 | ||
3356 | /* Initialize the local fields. */ | |
3357 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 3358 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
3359 | eh->stub_sec = NULL; |
3360 | eh->stub_offset = 0; | |
3361 | eh->target_value = 0; | |
3362 | eh->target_section = NULL; | |
721956f4 AM |
3363 | eh->h = NULL; |
3364 | eh->id_sec = NULL; | |
3365 | } | |
3366 | ||
3367 | return entry; | |
3368 | } | |
3369 | ||
3370 | /* Create an entry in the branch hash table. */ | |
3371 | ||
3372 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3373 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
3374 | struct bfd_hash_table *table, | |
3375 | const char *string) | |
721956f4 AM |
3376 | { |
3377 | /* Allocate the structure if it has not already been allocated by a | |
3378 | subclass. */ | |
3379 | if (entry == NULL) | |
3380 | { | |
3381 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
3382 | if (entry == NULL) | |
3383 | return entry; | |
3384 | } | |
3385 | ||
3386 | /* Call the allocation method of the superclass. */ | |
3387 | entry = bfd_hash_newfunc (entry, table, string); | |
3388 | if (entry != NULL) | |
3389 | { | |
3390 | struct ppc_branch_hash_entry *eh; | |
3391 | ||
3392 | /* Initialize the local fields. */ | |
3393 | eh = (struct ppc_branch_hash_entry *) entry; | |
3394 | eh->offset = 0; | |
3395 | eh->iter = 0; | |
3396 | } | |
3397 | ||
3398 | return entry; | |
3399 | } | |
3400 | ||
65f38f15 AM |
3401 | /* Create an entry in a ppc64 ELF linker hash table. */ |
3402 | ||
3403 | static struct bfd_hash_entry * | |
4ce794b7 AM |
3404 | link_hash_newfunc (struct bfd_hash_entry *entry, |
3405 | struct bfd_hash_table *table, | |
3406 | const char *string) | |
65f38f15 AM |
3407 | { |
3408 | /* Allocate the structure if it has not already been allocated by a | |
3409 | subclass. */ | |
3410 | if (entry == NULL) | |
3411 | { | |
3412 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
3413 | if (entry == NULL) | |
3414 | return entry; | |
3415 | } | |
3416 | ||
3417 | /* Call the allocation method of the superclass. */ | |
3418 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3419 | if (entry != NULL) | |
3420 | { | |
3421 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
3422 | ||
721956f4 | 3423 | eh->stub_cache = NULL; |
65f38f15 | 3424 | eh->dyn_relocs = NULL; |
721956f4 | 3425 | eh->oh = NULL; |
e86ce104 AM |
3426 | eh->is_func = 0; |
3427 | eh->is_func_descriptor = 0; | |
754021d0 | 3428 | eh->adjust_done = 0; |
99877b66 | 3429 | eh->was_undefined = 0; |
e7b938ca | 3430 | eh->tls_mask = 0; |
65f38f15 AM |
3431 | } |
3432 | ||
3433 | return entry; | |
3434 | } | |
3435 | ||
3436 | /* Create a ppc64 ELF linker hash table. */ | |
3437 | ||
3438 | static struct bfd_link_hash_table * | |
4ce794b7 | 3439 | ppc64_elf_link_hash_table_create (bfd *abfd) |
65f38f15 AM |
3440 | { |
3441 | struct ppc_link_hash_table *htab; | |
3442 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
3443 | ||
4ce794b7 | 3444 | htab = bfd_zmalloc (amt); |
65f38f15 AM |
3445 | if (htab == NULL) |
3446 | return NULL; | |
3447 | ||
3448 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
3449 | { | |
e2d34d7d | 3450 | free (htab); |
65f38f15 AM |
3451 | return NULL; |
3452 | } | |
3453 | ||
721956f4 AM |
3454 | /* Init the stub hash table too. */ |
3455 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
3456 | return NULL; | |
3457 | ||
3458 | /* And the branch hash table. */ | |
3459 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
3460 | return NULL; | |
3461 | ||
3254fd24 AM |
3462 | /* Initializing two fields of the union is just cosmetic. We really |
3463 | only care about glist, but when compiled on a 32-bit host the | |
3464 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
3465 | debugger inspection of these fields look nicer. */ | |
3466 | htab->elf.init_refcount.refcount = 0; | |
3467 | htab->elf.init_refcount.glist = NULL; | |
3468 | htab->elf.init_offset.offset = 0; | |
3469 | htab->elf.init_offset.glist = NULL; | |
3470 | ||
65f38f15 AM |
3471 | return &htab->elf.root; |
3472 | } | |
3473 | ||
721956f4 AM |
3474 | /* Free the derived linker hash table. */ |
3475 | ||
3476 | static void | |
4ce794b7 | 3477 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
721956f4 AM |
3478 | { |
3479 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
3480 | ||
3481 | bfd_hash_table_free (&ret->stub_hash_table); | |
3482 | bfd_hash_table_free (&ret->branch_hash_table); | |
3483 | _bfd_generic_link_hash_table_free (hash); | |
3484 | } | |
3485 | ||
e717da7e AM |
3486 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
3487 | ||
3488 | void | |
3489 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) | |
3490 | { | |
3491 | struct ppc_link_hash_table *htab; | |
3492 | ||
3493 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
3494 | ||
3495 | /* Always hook our dynamic sections into the first bfd, which is the | |
3496 | linker created stub bfd. This ensures that the GOT header is at | |
3497 | the start of the output TOC section. */ | |
3498 | htab = ppc_hash_table (info); | |
3499 | htab->stub_bfd = abfd; | |
3500 | htab->elf.dynobj = abfd; | |
3501 | } | |
3502 | ||
721956f4 AM |
3503 | /* Build a name for an entry in the stub hash table. */ |
3504 | ||
3505 | static char * | |
4ce794b7 AM |
3506 | ppc_stub_name (const asection *input_section, |
3507 | const asection *sym_sec, | |
3508 | const struct ppc_link_hash_entry *h, | |
3509 | const Elf_Internal_Rela *rel) | |
721956f4 AM |
3510 | { |
3511 | char *stub_name; | |
3512 | bfd_size_type len; | |
3513 | ||
3514 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3515 | offsets from a sym as a branch target? In fact, we could | |
3516 | probably assume the addend is always zero. */ | |
3517 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3518 | ||
3519 | if (h) | |
3520 | { | |
3521 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3522 | stub_name = bfd_malloc (len); | |
3523 | if (stub_name != NULL) | |
3524 | { | |
97b639ba | 3525 | sprintf (stub_name, "%08x.%s+%x", |
721956f4 AM |
3526 | input_section->id & 0xffffffff, |
3527 | h->elf.root.root.string, | |
3528 | (int) rel->r_addend & 0xffffffff); | |
3529 | } | |
3530 | } | |
3531 | else | |
3532 | { | |
ad8e1ba5 | 3533 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 AM |
3534 | stub_name = bfd_malloc (len); |
3535 | if (stub_name != NULL) | |
3536 | { | |
97b639ba | 3537 | sprintf (stub_name, "%08x.%x:%x+%x", |
721956f4 AM |
3538 | input_section->id & 0xffffffff, |
3539 | sym_sec->id & 0xffffffff, | |
3540 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3541 | (int) rel->r_addend & 0xffffffff); | |
3542 | } | |
3543 | } | |
ee75fd95 AM |
3544 | if (stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
3545 | stub_name[len - 2] = 0; | |
721956f4 AM |
3546 | return stub_name; |
3547 | } | |
3548 | ||
3549 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3550 | creating the stub name takes a bit of time. */ | |
3551 | ||
3552 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3553 | ppc_get_stub_entry (const asection *input_section, |
3554 | const asection *sym_sec, | |
039b3fef | 3555 | struct ppc_link_hash_entry *h, |
4ce794b7 AM |
3556 | const Elf_Internal_Rela *rel, |
3557 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3558 | { |
3559 | struct ppc_stub_hash_entry *stub_entry; | |
721956f4 AM |
3560 | const asection *id_sec; |
3561 | ||
3562 | /* If this input section is part of a group of sections sharing one | |
3563 | stub section, then use the id of the first section in the group. | |
3564 | Stub names need to include a section id, as there may well be | |
3565 | more than one stub used to reach say, printf, and we need to | |
3566 | distinguish between them. */ | |
3567 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3568 | ||
3569 | if (h != NULL && h->stub_cache != NULL | |
3570 | && h->stub_cache->h == h | |
3571 | && h->stub_cache->id_sec == id_sec) | |
3572 | { | |
3573 | stub_entry = h->stub_cache; | |
3574 | } | |
3575 | else | |
3576 | { | |
3577 | char *stub_name; | |
3578 | ||
3579 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3580 | if (stub_name == NULL) | |
3581 | return NULL; | |
3582 | ||
3583 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3584 | stub_name, FALSE, FALSE); |
721956f4 AM |
3585 | if (h != NULL) |
3586 | h->stub_cache = stub_entry; | |
3587 | ||
3588 | free (stub_name); | |
3589 | } | |
3590 | ||
3591 | return stub_entry; | |
3592 | } | |
3593 | ||
3594 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3595 | stub entry are initialised. */ | |
3596 | ||
3597 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3598 | ppc_add_stub (const char *stub_name, |
3599 | asection *section, | |
3600 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3601 | { |
3602 | asection *link_sec; | |
3603 | asection *stub_sec; | |
3604 | struct ppc_stub_hash_entry *stub_entry; | |
3605 | ||
3606 | link_sec = htab->stub_group[section->id].link_sec; | |
3607 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3608 | if (stub_sec == NULL) | |
3609 | { | |
3610 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3611 | if (stub_sec == NULL) | |
3612 | { | |
d4c88bbb | 3613 | size_t namelen; |
721956f4 AM |
3614 | bfd_size_type len; |
3615 | char *s_name; | |
3616 | ||
d4c88bbb AM |
3617 | namelen = strlen (link_sec->name); |
3618 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3619 | s_name = bfd_alloc (htab->stub_bfd, len); |
3620 | if (s_name == NULL) | |
3621 | return NULL; | |
3622 | ||
d4c88bbb AM |
3623 | memcpy (s_name, link_sec->name, namelen); |
3624 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3625 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3626 | if (stub_sec == NULL) | |
3627 | return NULL; | |
3628 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3629 | } | |
3630 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3631 | } | |
3632 | ||
3633 | /* Enter this entry into the linker stub hash table. */ | |
3634 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3635 | TRUE, FALSE); |
721956f4 AM |
3636 | if (stub_entry == NULL) |
3637 | { | |
d003868e AM |
3638 | (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), |
3639 | section->owner, stub_name); | |
721956f4 AM |
3640 | return NULL; |
3641 | } | |
3642 | ||
3643 | stub_entry->stub_sec = stub_sec; | |
3644 | stub_entry->stub_offset = 0; | |
3645 | stub_entry->id_sec = link_sec; | |
3646 | return stub_entry; | |
3647 | } | |
3648 | ||
82bd7b59 AM |
3649 | /* Create sections for linker generated code. */ |
3650 | ||
b34976b6 | 3651 | static bfd_boolean |
4ce794b7 | 3652 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) |
82bd7b59 AM |
3653 | { |
3654 | struct ppc_link_hash_table *htab; | |
3655 | flagword flags; | |
3656 | ||
3657 | htab = ppc_hash_table (info); | |
3658 | ||
3659 | /* Create .sfpr for code to save and restore fp regs. */ | |
3660 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3661 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3662 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3663 | if (htab->sfpr == NULL |
3664 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3665 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3666 | return FALSE; |
82bd7b59 | 3667 | |
721956f4 | 3668 | /* Create .glink for lazy dynamic linking support. */ |
4ce794b7 AM |
3669 | htab->glink = bfd_make_section_anyway (dynobj, ".glink"); |
3670 | if (htab->glink == NULL | |
3671 | || ! bfd_set_section_flags (dynobj, htab->glink, flags) | |
3672 | || ! bfd_set_section_alignment (dynobj, htab->glink, 2)) | |
b34976b6 | 3673 | return FALSE; |
82bd7b59 | 3674 | |
721956f4 AM |
3675 | /* Create .branch_lt for plt_branch stubs. */ |
3676 | flags = (SEC_ALLOC | SEC_LOAD | |
3677 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3678 | htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt"); |
3679 | if (htab->brlt == NULL | |
3680 | || ! bfd_set_section_flags (dynobj, htab->brlt, flags) | |
3681 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
b34976b6 | 3682 | return FALSE; |
721956f4 | 3683 | |
ee75fd95 | 3684 | if (info->shared || info->emitrelocations) |
721956f4 AM |
3685 | { |
3686 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3687 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3688 | htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
3689 | if (!htab->relbrlt | |
3690 | || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags) | |
3691 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
b34976b6 | 3692 | return FALSE; |
721956f4 | 3693 | } |
b34976b6 | 3694 | return TRUE; |
82bd7b59 AM |
3695 | } |
3696 | ||
e717da7e AM |
3697 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
3698 | not already done. */ | |
65f38f15 | 3699 | |
b34976b6 | 3700 | static bfd_boolean |
e717da7e | 3701 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
65f38f15 | 3702 | { |
e717da7e AM |
3703 | asection *got, *relgot; |
3704 | flagword flags; | |
3705 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
65f38f15 | 3706 | |
4ce794b7 | 3707 | if (!htab->got) |
e717da7e AM |
3708 | { |
3709 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
3710 | return FALSE; | |
3711 | ||
3712 | htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got"); | |
3713 | if (!htab->got) | |
3714 | abort (); | |
3715 | } | |
3716 | ||
3717 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3718 | | SEC_LINKER_CREATED); | |
3719 | ||
3720 | got = bfd_make_section (abfd, ".got"); | |
3721 | if (!got | |
3722 | || !bfd_set_section_flags (abfd, got, flags) | |
3723 | || !bfd_set_section_alignment (abfd, got, 3)) | |
3724 | return FALSE; | |
65f38f15 | 3725 | |
e717da7e AM |
3726 | relgot = bfd_make_section (abfd, ".rela.got"); |
3727 | if (!relgot | |
3728 | || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY) | |
3729 | || ! bfd_set_section_alignment (abfd, relgot, 3)) | |
b34976b6 | 3730 | return FALSE; |
e717da7e AM |
3731 | |
3732 | ppc64_elf_tdata (abfd)->got = got; | |
3733 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
b34976b6 | 3734 | return TRUE; |
65f38f15 | 3735 | } |
5bd4f169 | 3736 | |
82bd7b59 | 3737 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3738 | |
b34976b6 | 3739 | static bfd_boolean |
4ce794b7 | 3740 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5bd4f169 | 3741 | { |
65f38f15 | 3742 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3743 | |
65f38f15 | 3744 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3745 | return FALSE; |
65f38f15 | 3746 | |
e717da7e AM |
3747 | htab = ppc_hash_table (info); |
3748 | if (!htab->got) | |
3749 | htab->got = bfd_get_section_by_name (dynobj, ".got"); | |
4ce794b7 AM |
3750 | htab->plt = bfd_get_section_by_name (dynobj, ".plt"); |
3751 | htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3752 | htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
65f38f15 | 3753 | if (!info->shared) |
4ce794b7 | 3754 | htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
65f38f15 | 3755 | |
e717da7e | 3756 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
4ce794b7 | 3757 | || (!info->shared && !htab->relbss)) |
65f38f15 AM |
3758 | abort (); |
3759 | ||
b34976b6 | 3760 | return TRUE; |
5bd4f169 AM |
3761 | } |
3762 | ||
65f38f15 AM |
3763 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3764 | ||
3765 | static void | |
9c5bfbb7 AM |
3766 | ppc64_elf_copy_indirect_symbol |
3767 | (const struct elf_backend_data *bed ATTRIBUTE_UNUSED, | |
3768 | struct elf_link_hash_entry *dir, | |
3769 | struct elf_link_hash_entry *ind) | |
65f38f15 AM |
3770 | { |
3771 | struct ppc_link_hash_entry *edir, *eind; | |
3772 | ||
3773 | edir = (struct ppc_link_hash_entry *) dir; | |
3774 | eind = (struct ppc_link_hash_entry *) ind; | |
3775 | ||
411e1bfb | 3776 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3777 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3778 | { |
bbd7ec4a AM |
3779 | if (edir->dyn_relocs != NULL) |
3780 | { | |
3781 | struct ppc_dyn_relocs **pp; | |
3782 | struct ppc_dyn_relocs *p; | |
3783 | ||
411e1bfb | 3784 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3785 | abort (); |
3786 | ||
3787 | /* Add reloc counts against the weak sym to the strong sym | |
3788 | list. Merge any entries against the same section. */ | |
3789 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3790 | { | |
3791 | struct ppc_dyn_relocs *q; | |
3792 | ||
3793 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3794 | if (q->sec == p->sec) | |
3795 | { | |
3796 | q->pc_count += p->pc_count; | |
3797 | q->count += p->count; | |
3798 | *pp = p->next; | |
3799 | break; | |
3800 | } | |
3801 | if (q == NULL) | |
3802 | pp = &p->next; | |
3803 | } | |
3804 | *pp = edir->dyn_relocs; | |
3805 | } | |
3806 | ||
65f38f15 AM |
3807 | edir->dyn_relocs = eind->dyn_relocs; |
3808 | eind->dyn_relocs = NULL; | |
3809 | } | |
65f38f15 | 3810 | |
6349e628 AM |
3811 | edir->is_func |= eind->is_func; |
3812 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
58ac9f71 | 3813 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3814 | |
81848ca0 | 3815 | /* If called to transfer flags for a weakdef during processing |
f5385ebf | 3816 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. |
81848ca0 | 3817 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ |
f5385ebf AM |
3818 | if (!(ELIMINATE_COPY_RELOCS |
3819 | && eind->elf.root.type != bfd_link_hash_indirect | |
3820 | && edir->elf.dynamic_adjusted)) | |
3821 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
81848ca0 | 3822 | |
f5385ebf AM |
3823 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
3824 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3825 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3826 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
6349e628 AM |
3827 | |
3828 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3829 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3830 | return; | |
3831 | ||
81848ca0 AM |
3832 | /* Copy over got entries that we may have already seen to the |
3833 | symbol which just became indirect. */ | |
411e1bfb AM |
3834 | if (eind->elf.got.glist != NULL) |
3835 | { | |
3836 | if (edir->elf.got.glist != NULL) | |
3837 | { | |
3838 | struct got_entry **entp; | |
3839 | struct got_entry *ent; | |
3840 | ||
3841 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3842 | { | |
3843 | struct got_entry *dent; | |
3844 | ||
3845 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3846 | if (dent->addend == ent->addend | |
e717da7e | 3847 | && dent->owner == ent->owner |
411e1bfb AM |
3848 | && dent->tls_type == ent->tls_type) |
3849 | { | |
3850 | dent->got.refcount += ent->got.refcount; | |
3851 | *entp = ent->next; | |
3852 | break; | |
3853 | } | |
3854 | if (dent == NULL) | |
3855 | entp = &ent->next; | |
3856 | } | |
3857 | *entp = edir->elf.got.glist; | |
3858 | } | |
3859 | ||
3860 | edir->elf.got.glist = eind->elf.got.glist; | |
3861 | eind->elf.got.glist = NULL; | |
3862 | } | |
3863 | ||
3864 | /* And plt entries. */ | |
3865 | if (eind->elf.plt.plist != NULL) | |
3866 | { | |
3867 | if (edir->elf.plt.plist != NULL) | |
3868 | { | |
3869 | struct plt_entry **entp; | |
3870 | struct plt_entry *ent; | |
3871 | ||
3872 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3873 | { | |
3874 | struct plt_entry *dent; | |
3875 | ||
3876 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3877 | if (dent->addend == ent->addend) | |
3878 | { | |
3879 | dent->plt.refcount += ent->plt.refcount; | |
3880 | *entp = ent->next; | |
3881 | break; | |
3882 | } | |
3883 | if (dent == NULL) | |
3884 | entp = &ent->next; | |
3885 | } | |
3886 | *entp = edir->elf.plt.plist; | |
3887 | } | |
3888 | ||
3889 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3890 | eind->elf.plt.plist = NULL; | |
3891 | } | |
3892 | ||
411e1bfb AM |
3893 | if (edir->elf.dynindx == -1) |
3894 | { | |
3895 | edir->elf.dynindx = eind->elf.dynindx; | |
3896 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3897 | eind->elf.dynindx = -1; | |
3898 | eind->elf.dynstr_index = 0; | |
3899 | } | |
3900 | else | |
3901 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3902 | } | |
3903 | ||
8387904d AM |
3904 | /* Find the function descriptor hash entry from the given function code |
3905 | hash entry FH. Link the entries via their OH fields. */ | |
3906 | ||
3907 | static struct ppc_link_hash_entry * | |
3908 | get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) | |
3909 | { | |
3910 | struct ppc_link_hash_entry *fdh = fh->oh; | |
3911 | ||
3912 | if (fdh == NULL) | |
3913 | { | |
3914 | const char *fd_name = fh->elf.root.root.string + 1; | |
3915 | ||
3916 | fdh = (struct ppc_link_hash_entry *) | |
3917 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
3918 | if (fdh != NULL) | |
3919 | { | |
3920 | fdh->is_func_descriptor = 1; | |
3921 | fdh->oh = fh; | |
3922 | fh->is_func = 1; | |
3923 | fh->oh = fdh; | |
3924 | } | |
3925 | } | |
3926 | ||
3927 | return fdh; | |
3928 | } | |
3929 | ||
3930 | /* Hacks to support old ABI code. | |
3931 | When making function calls, old ABI code references function entry | |
3932 | points (dot symbols), while new ABI code references the function | |
3933 | descriptor symbol. We need to make any combination of reference and | |
3934 | definition work together, without breaking archive linking. | |
3935 | ||
3936 | For a defined function "foo" and an undefined call to "bar": | |
3937 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
3938 | "bar" too). | |
3939 | A new object defines "foo" and references "bar". | |
3940 | ||
3941 | A new object thus has no problem with its undefined symbols being | |
3942 | satisfied by definitions in an old object. On the other hand, the | |
3943 | old object won't have ".bar" satisfied by a new object. */ | |
3944 | ||
3945 | /* Fix function descriptor symbols defined in .opd sections to be | |
3946 | function type. */ | |
555cd476 AM |
3947 | |
3948 | static bfd_boolean | |
3949 | ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED, | |
3950 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3951 | Elf_Internal_Sym *isym, | |
3952 | const char **name ATTRIBUTE_UNUSED, | |
3953 | flagword *flags ATTRIBUTE_UNUSED, | |
3954 | asection **sec, | |
3955 | bfd_vma *value ATTRIBUTE_UNUSED) | |
3956 | { | |
8843416a AM |
3957 | if (*sec != NULL |
3958 | && strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0) | |
555cd476 AM |
3959 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); |
3960 | return TRUE; | |
3961 | } | |
3962 | ||
8387904d AM |
3963 | /* This function makes an old ABI object reference to ".bar" cause the |
3964 | inclusion of a new ABI object archive that defines "bar". */ | |
3965 | ||
3966 | static struct elf_link_hash_entry * | |
3967 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
3968 | struct bfd_link_info *info, | |
3969 | const char *name) | |
3970 | { | |
3971 | struct elf_link_hash_entry *h; | |
3972 | char *dot_name; | |
3973 | size_t len; | |
3974 | ||
3975 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
3976 | if (h != NULL) | |
3977 | return h; | |
3978 | ||
3979 | if (name[0] == '.') | |
3980 | return h; | |
3981 | ||
3982 | len = strlen (name); | |
3983 | dot_name = bfd_alloc (abfd, len + 2); | |
3984 | if (dot_name == NULL) | |
3985 | return (struct elf_link_hash_entry *) 0 - 1; | |
3986 | dot_name[0] = '.'; | |
3987 | memcpy (dot_name + 1, name, len + 1); | |
3988 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
3989 | bfd_release (abfd, dot_name); | |
3990 | return h; | |
3991 | } | |
3992 | ||
3993 | /* This function satisfies all old ABI object references to ".bar" if a | |
99877b66 AM |
3994 | new ABI object defines "bar". Well, at least, undefined dot symbols |
3995 | are made weak. This stops later archive searches from including an | |
3996 | object if we already have a function descriptor definition. It also | |
35b0ce59 AM |
3997 | prevents the linker complaining about undefined symbols. |
3998 | We also check and correct mismatched symbol visibility here. The | |
3999 | most restrictive visibility of the function descriptor and the | |
4000 | function entry symbol is used. */ | |
8387904d AM |
4001 | |
4002 | static bfd_boolean | |
4003 | add_symbol_adjust (struct elf_link_hash_entry *h, void *inf) | |
4004 | { | |
4005 | struct bfd_link_info *info; | |
4006 | struct ppc_link_hash_table *htab; | |
99877b66 | 4007 | struct ppc_link_hash_entry *eh; |
8387904d AM |
4008 | struct ppc_link_hash_entry *fdh; |
4009 | ||
4010 | if (h->root.type == bfd_link_hash_indirect) | |
4011 | return TRUE; | |
4012 | ||
4013 | if (h->root.type == bfd_link_hash_warning) | |
4014 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4015 | ||
35b0ce59 | 4016 | if (h->root.root.string[0] != '.') |
8387904d AM |
4017 | return TRUE; |
4018 | ||
4019 | info = inf; | |
4020 | htab = ppc_hash_table (info); | |
99877b66 AM |
4021 | eh = (struct ppc_link_hash_entry *) h; |
4022 | fdh = get_fdh (eh, htab); | |
8387904d AM |
4023 | if (fdh != NULL) |
4024 | { | |
35b0ce59 AM |
4025 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
4026 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
4027 | if (entry_vis < descr_vis) | |
4028 | fdh->elf.other += entry_vis - descr_vis; | |
4029 | else if (entry_vis > descr_vis) | |
4030 | eh->elf.other += descr_vis - entry_vis; | |
4031 | ||
4032 | if (eh->elf.root.type == bfd_link_hash_undefined) | |
4033 | { | |
4034 | eh->elf.root.type = bfd_link_hash_undefweak; | |
4035 | eh->was_undefined = 1; | |
4036 | htab->twiddled_syms = 1; | |
4037 | } | |
8387904d | 4038 | } |
99877b66 | 4039 | |
8387904d AM |
4040 | return TRUE; |
4041 | } | |
4042 | ||
4043 | static bfd_boolean | |
4044 | ppc64_elf_check_directives (bfd *abfd ATTRIBUTE_UNUSED, | |
4045 | struct bfd_link_info *info) | |
4046 | { | |
99877b66 AM |
4047 | struct ppc_link_hash_table *htab; |
4048 | ||
4049 | htab = ppc_hash_table (info); | |
ee75fd95 | 4050 | if (!is_ppc64_elf_target (htab->elf.root.creator)) |
35b0ce59 AM |
4051 | return TRUE; |
4052 | ||
8387904d | 4053 | elf_link_hash_traverse (&htab->elf, add_symbol_adjust, info); |
99877b66 AM |
4054 | |
4055 | /* We need to fix the undefs list for any syms we have twiddled to | |
4056 | undef_weak. */ | |
4057 | if (htab->twiddled_syms) | |
4058 | { | |
4059 | struct bfd_link_hash_entry **pun; | |
4060 | ||
4061 | pun = &htab->elf.root.undefs; | |
4062 | while (*pun != NULL) | |
4063 | { | |
4064 | struct bfd_link_hash_entry *h = *pun; | |
4065 | ||
4066 | if (h->type != bfd_link_hash_undefined | |
4067 | && h->type != bfd_link_hash_common) | |
4068 | { | |
f6e332e6 AM |
4069 | *pun = h->u.undef.next; |
4070 | h->u.undef.next = NULL; | |
99877b66 AM |
4071 | if (h == htab->elf.root.undefs_tail) |
4072 | { | |
4073 | if (pun == &htab->elf.root.undefs) | |
4074 | htab->elf.root.undefs_tail = NULL; | |
4075 | else | |
f6e332e6 | 4076 | /* pun points at an u.undef.next field. Go back to |
99877b66 AM |
4077 | the start of the link_hash_entry. */ |
4078 | htab->elf.root.undefs_tail = (struct bfd_link_hash_entry *) | |
f6e332e6 | 4079 | ((char *) pun - ((char *) &h->u.undef.next - (char *) h)); |
99877b66 AM |
4080 | break; |
4081 | } | |
4082 | } | |
4083 | else | |
f6e332e6 | 4084 | pun = &h->u.undef.next; |
99877b66 AM |
4085 | } |
4086 | ||
4087 | htab->twiddled_syms = 0; | |
4088 | } | |
8387904d AM |
4089 | return TRUE; |
4090 | } | |
4091 | ||
411e1bfb | 4092 | static bfd_boolean |
4ce794b7 AM |
4093 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
4094 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
411e1bfb AM |
4095 | { |
4096 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 4097 | char *local_got_tls_masks; |
411e1bfb AM |
4098 | |
4099 | if (local_got_ents == NULL) | |
4100 | { | |
4101 | bfd_size_type size = symtab_hdr->sh_info; | |
4102 | ||
e7b938ca | 4103 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
4ce794b7 | 4104 | local_got_ents = bfd_zalloc (abfd, size); |
411e1bfb AM |
4105 | if (local_got_ents == NULL) |
4106 | return FALSE; | |
4107 | elf_local_got_ents (abfd) = local_got_ents; | |
4108 | } | |
4109 | ||
4110 | if ((tls_type & TLS_EXPLICIT) == 0) | |
4111 | { | |
4112 | struct got_entry *ent; | |
4113 | ||
4114 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
e717da7e AM |
4115 | if (ent->addend == r_addend |
4116 | && ent->owner == abfd | |
4117 | && ent->tls_type == tls_type) | |
411e1bfb AM |
4118 | break; |
4119 | if (ent == NULL) | |
4120 | { | |
4121 | bfd_size_type amt = sizeof (*ent); | |
4ce794b7 | 4122 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
4123 | if (ent == NULL) |
4124 | return FALSE; | |
4125 | ent->next = local_got_ents[r_symndx]; | |
4126 | ent->addend = r_addend; | |
e717da7e | 4127 | ent->owner = abfd; |
411e1bfb AM |
4128 | ent->tls_type = tls_type; |
4129 | ent->got.refcount = 0; | |
4130 | local_got_ents[r_symndx] = ent; | |
4131 | } | |
4132 | ent->got.refcount += 1; | |
4133 | } | |
4134 | ||
e7b938ca AM |
4135 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
4136 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 4137 | return TRUE; |
65f38f15 AM |
4138 | } |
4139 | ||
411e1bfb | 4140 | static bfd_boolean |
4ce794b7 | 4141 | update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend) |
1e2f5b6e | 4142 | { |
411e1bfb | 4143 | struct plt_entry *ent; |
1e2f5b6e | 4144 | |
411e1bfb AM |
4145 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
4146 | if (ent->addend == addend) | |
4147 | break; | |
4148 | if (ent == NULL) | |
1e2f5b6e | 4149 | { |
411e1bfb | 4150 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 4151 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
4152 | if (ent == NULL) |
4153 | return FALSE; | |
4154 | ent->next = eh->elf.plt.plist; | |
4155 | ent->addend = addend; | |
4156 | ent->plt.refcount = 0; | |
4157 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 4158 | } |
411e1bfb | 4159 | ent->plt.refcount += 1; |
f5385ebf | 4160 | eh->elf.needs_plt = 1; |
411e1bfb | 4161 | eh->is_func = 1; |
b34976b6 | 4162 | return TRUE; |
1e2f5b6e AM |
4163 | } |
4164 | ||
5bd4f169 | 4165 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 4166 | calculate needed space in the global offset table, procedure |
5d1634d7 | 4167 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 4168 | |
b34976b6 | 4169 | static bfd_boolean |
4ce794b7 AM |
4170 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
4171 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4172 | { |
65f38f15 | 4173 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4174 | Elf_Internal_Shdr *symtab_hdr; |
4175 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
4176 | const Elf_Internal_Rela *rel; | |
4177 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 4178 | asection *sreloc; |
1e2f5b6e | 4179 | asection **opd_sym_map; |
5bd4f169 | 4180 | |
1049f94e | 4181 | if (info->relocatable) |
b34976b6 | 4182 | return TRUE; |
5bd4f169 | 4183 | |
680a3378 AM |
4184 | /* Don't do anything special with non-loaded, non-alloced sections. |
4185 | In particular, any relocs in such sections should not affect GOT | |
4186 | and PLT reference counting (ie. we don't allow them to create GOT | |
4187 | or PLT entries), there's no possibility or desire to optimize TLS | |
4188 | relocs, and there's not much point in propagating relocs to shared | |
4189 | libs that the dynamic linker won't relocate. */ | |
4190 | if ((sec->flags & SEC_ALLOC) == 0) | |
4191 | return TRUE; | |
4192 | ||
65f38f15 | 4193 | htab = ppc_hash_table (info); |
5bd4f169 | 4194 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
4195 | |
4196 | sym_hashes = elf_sym_hashes (abfd); | |
4197 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
4198 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
4199 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
4200 | |
4201 | sreloc = NULL; | |
1e2f5b6e AM |
4202 | opd_sym_map = NULL; |
4203 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
4204 | { | |
4205 | /* Garbage collection needs some extra help with .opd sections. | |
4206 | We don't want to necessarily keep everything referenced by | |
4207 | relocs in .opd, as that would keep all functions. Instead, | |
4208 | if we reference an .opd symbol (a function descriptor), we | |
4209 | want to keep the function code symbol's section. This is | |
4210 | easy for global symbols, but for local syms we need to keep | |
4211 | information about the associated function section. Later, if | |
4212 | edit_opd deletes entries, we'll use this array to adjust | |
4213 | local syms in .opd. */ | |
4214 | union opd_info { | |
4215 | asection *func_section; | |
4216 | long entry_adjust; | |
4217 | }; | |
4218 | bfd_size_type amt; | |
4219 | ||
3f764659 | 4220 | amt = sec->size * sizeof (union opd_info) / 8; |
4ce794b7 | 4221 | opd_sym_map = bfd_zalloc (abfd, amt); |
1e2f5b6e | 4222 | if (opd_sym_map == NULL) |
b34976b6 | 4223 | return FALSE; |
f0abc2a1 | 4224 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 4225 | } |
5bd4f169 | 4226 | |
82bd7b59 AM |
4227 | if (htab->sfpr == NULL |
4228 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 4229 | return FALSE; |
82bd7b59 | 4230 | |
5bd4f169 AM |
4231 | rel_end = relocs + sec->reloc_count; |
4232 | for (rel = relocs; rel < rel_end; rel++) | |
4233 | { | |
4234 | unsigned long r_symndx; | |
4235 | struct elf_link_hash_entry *h; | |
04c9666a | 4236 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 4237 | int tls_type = 0; |
5bd4f169 AM |
4238 | |
4239 | r_symndx = ELF64_R_SYM (rel->r_info); | |
4240 | if (r_symndx < symtab_hdr->sh_info) | |
4241 | h = NULL; | |
4242 | else | |
4243 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4244 | ||
4ce794b7 | 4245 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4246 | switch (r_type) |
5bd4f169 | 4247 | { |
411e1bfb AM |
4248 | case R_PPC64_GOT_TLSLD16: |
4249 | case R_PPC64_GOT_TLSLD16_LO: | |
4250 | case R_PPC64_GOT_TLSLD16_HI: | |
4251 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 4252 | ppc64_tlsld_got (abfd)->refcount += 1; |
951fd09b | 4253 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4254 | goto dogottls; |
4255 | ||
4256 | case R_PPC64_GOT_TLSGD16: | |
4257 | case R_PPC64_GOT_TLSGD16_LO: | |
4258 | case R_PPC64_GOT_TLSGD16_HI: | |
4259 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4260 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4261 | goto dogottls; |
4262 | ||
4263 | case R_PPC64_GOT_TPREL16_DS: | |
4264 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4265 | case R_PPC64_GOT_TPREL16_HI: | |
4266 | case R_PPC64_GOT_TPREL16_HA: | |
4267 | if (info->shared) | |
4268 | info->flags |= DF_STATIC_TLS; | |
4269 | tls_type = TLS_TLS | TLS_TPREL; | |
4270 | goto dogottls; | |
4271 | ||
4272 | case R_PPC64_GOT_DTPREL16_DS: | |
4273 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4274 | case R_PPC64_GOT_DTPREL16_HI: | |
4275 | case R_PPC64_GOT_DTPREL16_HA: | |
4276 | tls_type = TLS_TLS | TLS_DTPREL; | |
4277 | dogottls: | |
4278 | sec->has_tls_reloc = 1; | |
4279 | /* Fall thru */ | |
4280 | ||
5bd4f169 | 4281 | case R_PPC64_GOT16: |
5bd4f169 | 4282 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
4283 | case R_PPC64_GOT16_HA: |
4284 | case R_PPC64_GOT16_HI: | |
4285 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 4286 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 4287 | /* This symbol requires a global offset table entry. */ |
ad8e1ba5 | 4288 | sec->has_gp_reloc = 1; |
e717da7e AM |
4289 | if (ppc64_elf_tdata (abfd)->got == NULL |
4290 | && !create_got_section (abfd, info)) | |
b34976b6 | 4291 | return FALSE; |
5bd4f169 AM |
4292 | |
4293 | if (h != NULL) | |
4294 | { | |
411e1bfb AM |
4295 | struct ppc_link_hash_entry *eh; |
4296 | struct got_entry *ent; | |
65f38f15 | 4297 | |
411e1bfb AM |
4298 | eh = (struct ppc_link_hash_entry *) h; |
4299 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
4300 | if (ent->addend == rel->r_addend | |
e717da7e | 4301 | && ent->owner == abfd |
411e1bfb AM |
4302 | && ent->tls_type == tls_type) |
4303 | break; | |
4304 | if (ent == NULL) | |
5bd4f169 | 4305 | { |
411e1bfb | 4306 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 4307 | ent = bfd_alloc (abfd, amt); |
411e1bfb | 4308 | if (ent == NULL) |
b34976b6 | 4309 | return FALSE; |
411e1bfb AM |
4310 | ent->next = eh->elf.got.glist; |
4311 | ent->addend = rel->r_addend; | |
e717da7e | 4312 | ent->owner = abfd; |
411e1bfb AM |
4313 | ent->tls_type = tls_type; |
4314 | ent->got.refcount = 0; | |
4315 | eh->elf.got.glist = ent; | |
5bd4f169 | 4316 | } |
411e1bfb | 4317 | ent->got.refcount += 1; |
e7b938ca | 4318 | eh->tls_mask |= tls_type; |
5bd4f169 | 4319 | } |
411e1bfb AM |
4320 | else |
4321 | /* This is a global offset table entry for a local symbol. */ | |
4322 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
4323 | rel->r_addend, tls_type)) | |
4324 | return FALSE; | |
5bd4f169 AM |
4325 | break; |
4326 | ||
5bd4f169 | 4327 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
4328 | case R_PPC64_PLT16_HI: |
4329 | case R_PPC64_PLT16_LO: | |
4330 | case R_PPC64_PLT32: | |
4331 | case R_PPC64_PLT64: | |
5bd4f169 | 4332 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
4333 | actually build the entry in adjust_dynamic_symbol, |
4334 | because this might be a case of linking PIC code without | |
4335 | linking in any dynamic objects, in which case we don't | |
4336 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
4337 | if (h == NULL) |
4338 | { | |
4339 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 4340 | table entry for a local symbol. */ |
5bd4f169 | 4341 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 4342 | return FALSE; |
5bd4f169 | 4343 | } |
411e1bfb AM |
4344 | else |
4345 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
4346 | rel->r_addend)) | |
4347 | return FALSE; | |
5bd4f169 AM |
4348 | break; |
4349 | ||
4350 | /* The following relocations don't need to propagate the | |
4351 | relocation if linking a shared object since they are | |
4352 | section relative. */ | |
4353 | case R_PPC64_SECTOFF: | |
4354 | case R_PPC64_SECTOFF_LO: | |
4355 | case R_PPC64_SECTOFF_HI: | |
4356 | case R_PPC64_SECTOFF_HA: | |
4357 | case R_PPC64_SECTOFF_DS: | |
4358 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
4359 | case R_PPC64_DTPREL16: |
4360 | case R_PPC64_DTPREL16_LO: | |
4361 | case R_PPC64_DTPREL16_HI: | |
4362 | case R_PPC64_DTPREL16_HA: | |
4363 | case R_PPC64_DTPREL16_DS: | |
4364 | case R_PPC64_DTPREL16_LO_DS: | |
4365 | case R_PPC64_DTPREL16_HIGHER: | |
4366 | case R_PPC64_DTPREL16_HIGHERA: | |
4367 | case R_PPC64_DTPREL16_HIGHEST: | |
4368 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
4369 | break; |
4370 | ||
ad8e1ba5 AM |
4371 | /* Nor do these. */ |
4372 | case R_PPC64_TOC16: | |
4373 | case R_PPC64_TOC16_LO: | |
4374 | case R_PPC64_TOC16_HI: | |
4375 | case R_PPC64_TOC16_HA: | |
4376 | case R_PPC64_TOC16_DS: | |
4377 | case R_PPC64_TOC16_LO_DS: | |
4378 | sec->has_gp_reloc = 1; | |
4379 | break; | |
4380 | ||
5bd4f169 AM |
4381 | /* This relocation describes the C++ object vtable hierarchy. |
4382 | Reconstruct it for later use during GC. */ | |
4383 | case R_PPC64_GNU_VTINHERIT: | |
c152c796 | 4384 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 4385 | return FALSE; |
5bd4f169 AM |
4386 | break; |
4387 | ||
4388 | /* This relocation describes which C++ vtable entries are actually | |
4389 | used. Record for later use during GC. */ | |
4390 | case R_PPC64_GNU_VTENTRY: | |
c152c796 | 4391 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 4392 | return FALSE; |
5bd4f169 AM |
4393 | break; |
4394 | ||
721956f4 AM |
4395 | case R_PPC64_REL14: |
4396 | case R_PPC64_REL14_BRTAKEN: | |
4397 | case R_PPC64_REL14_BRNTAKEN: | |
4398 | htab->has_14bit_branch = 1; | |
4399 | /* Fall through. */ | |
4400 | ||
5d1634d7 | 4401 | case R_PPC64_REL24: |
8387904d | 4402 | if (h != NULL) |
5d1634d7 AM |
4403 | { |
4404 | /* We may need a .plt entry if the function this reloc | |
4405 | refers to is in a shared lib. */ | |
411e1bfb AM |
4406 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
4407 | rel->r_addend)) | |
4408 | return FALSE; | |
8387904d AM |
4409 | if (h == &htab->tls_get_addr->elf |
4410 | || h == &htab->tls_get_addr_fd->elf) | |
411e1bfb | 4411 | sec->has_tls_reloc = 1; |
8387904d AM |
4412 | else if (htab->tls_get_addr == NULL |
4413 | && !strncmp (h->root.root.string, ".__tls_get_addr", 15) | |
a48ebf4d AM |
4414 | && (h->root.root.string[15] == 0 |
4415 | || h->root.root.string[15] == '@')) | |
411e1bfb | 4416 | { |
8387904d AM |
4417 | htab->tls_get_addr = (struct ppc_link_hash_entry *) h; |
4418 | sec->has_tls_reloc = 1; | |
4419 | } | |
4420 | else if (htab->tls_get_addr_fd == NULL | |
4421 | && !strncmp (h->root.root.string, "__tls_get_addr", 14) | |
4422 | && (h->root.root.string[14] == 0 | |
4423 | || h->root.root.string[14] == '@')) | |
4424 | { | |
4425 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) h; | |
411e1bfb AM |
4426 | sec->has_tls_reloc = 1; |
4427 | } | |
4428 | } | |
4429 | break; | |
4430 | ||
4431 | case R_PPC64_TPREL64: | |
4432 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
4433 | if (info->shared) | |
4434 | info->flags |= DF_STATIC_TLS; | |
4435 | goto dotlstoc; | |
4436 | ||
4437 | case R_PPC64_DTPMOD64: | |
4438 | if (rel + 1 < rel_end | |
4439 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
4440 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 4441 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 4442 | else |
951fd09b | 4443 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
4444 | goto dotlstoc; |
4445 | ||
4446 | case R_PPC64_DTPREL64: | |
4447 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
4448 | if (rel != relocs | |
4449 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
4450 | && rel[-1].r_offset == rel->r_offset - 8) | |
4451 | /* This is the second reloc of a dtpmod, dtprel pair. | |
4452 | Don't mark with TLS_DTPREL. */ | |
4453 | goto dodyn; | |
4454 | ||
4455 | dotlstoc: | |
4456 | sec->has_tls_reloc = 1; | |
4457 | if (h != NULL) | |
4458 | { | |
4459 | struct ppc_link_hash_entry *eh; | |
4460 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4461 | eh->tls_mask |= tls_type; |
411e1bfb AM |
4462 | } |
4463 | else | |
4464 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
4465 | rel->r_addend, tls_type)) | |
4466 | return FALSE; | |
4467 | ||
4468 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
4469 | { | |
e7b938ca | 4470 | /* One extra to simplify get_tls_mask. */ |
eea6121a | 4471 | bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1; |
4ce794b7 | 4472 | ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt); |
411e1bfb AM |
4473 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) |
4474 | return FALSE; | |
4475 | } | |
4476 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
4477 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
4478 | |
4479 | /* Mark the second slot of a GD or LD entry. | |
4480 | -1 to indicate GD and -2 to indicate LD. */ | |
4481 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
4482 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
4483 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
4484 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
4485 | goto dodyn; |
4486 | ||
4487 | case R_PPC64_TPREL16: | |
4488 | case R_PPC64_TPREL16_LO: | |
4489 | case R_PPC64_TPREL16_HI: | |
4490 | case R_PPC64_TPREL16_HA: | |
4491 | case R_PPC64_TPREL16_DS: | |
4492 | case R_PPC64_TPREL16_LO_DS: | |
4493 | case R_PPC64_TPREL16_HIGHER: | |
4494 | case R_PPC64_TPREL16_HIGHERA: | |
4495 | case R_PPC64_TPREL16_HIGHEST: | |
4496 | case R_PPC64_TPREL16_HIGHESTA: | |
4497 | if (info->shared) | |
4498 | { | |
4499 | info->flags |= DF_STATIC_TLS; | |
4500 | goto dodyn; | |
5d1634d7 AM |
4501 | } |
4502 | break; | |
4503 | ||
e86ce104 | 4504 | case R_PPC64_ADDR64: |
1e2f5b6e | 4505 | if (opd_sym_map != NULL |
1e2f5b6e | 4506 | && rel + 1 < rel_end |
4ce794b7 | 4507 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
1e2f5b6e | 4508 | { |
8387904d AM |
4509 | if (h != NULL) |
4510 | { | |
4511 | if (h->root.root.string[0] == '.' | |
4512 | && h->root.root.string[1] != 0 | |
4513 | && get_fdh ((struct ppc_link_hash_entry *) h, htab)) | |
4514 | ; | |
4515 | else | |
4516 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
4517 | } | |
4518 | else | |
4519 | { | |
4520 | asection *s; | |
1e2f5b6e | 4521 | |
8387904d AM |
4522 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, |
4523 | r_symndx); | |
4524 | if (s == NULL) | |
4525 | return FALSE; | |
4526 | else if (s != sec) | |
3f764659 | 4527 | opd_sym_map[rel->r_offset / 8] = s; |
8387904d | 4528 | } |
1e2f5b6e | 4529 | } |
e86ce104 AM |
4530 | /* Fall through. */ |
4531 | ||
04c9666a | 4532 | case R_PPC64_REL30: |
5bd4f169 | 4533 | case R_PPC64_REL32: |
04c9666a | 4534 | case R_PPC64_REL64: |
65f38f15 AM |
4535 | case R_PPC64_ADDR14: |
4536 | case R_PPC64_ADDR14_BRNTAKEN: | |
4537 | case R_PPC64_ADDR14_BRTAKEN: | |
4538 | case R_PPC64_ADDR16: | |
4539 | case R_PPC64_ADDR16_DS: | |
4540 | case R_PPC64_ADDR16_HA: | |
4541 | case R_PPC64_ADDR16_HI: | |
4542 | case R_PPC64_ADDR16_HIGHER: | |
4543 | case R_PPC64_ADDR16_HIGHERA: | |
4544 | case R_PPC64_ADDR16_HIGHEST: | |
4545 | case R_PPC64_ADDR16_HIGHESTA: | |
4546 | case R_PPC64_ADDR16_LO: | |
4547 | case R_PPC64_ADDR16_LO_DS: | |
4548 | case R_PPC64_ADDR24: | |
65f38f15 | 4549 | case R_PPC64_ADDR32: |
65f38f15 AM |
4550 | case R_PPC64_UADDR16: |
4551 | case R_PPC64_UADDR32: | |
4552 | case R_PPC64_UADDR64: | |
5bd4f169 | 4553 | case R_PPC64_TOC: |
81848ca0 AM |
4554 | if (h != NULL && !info->shared) |
4555 | /* We may need a copy reloc. */ | |
f5385ebf | 4556 | h->non_got_ref = 1; |
81848ca0 | 4557 | |
41bd81ab | 4558 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 4559 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 4560 | break; |
e86ce104 | 4561 | |
65f38f15 AM |
4562 | /* If we are creating a shared library, and this is a reloc |
4563 | against a global symbol, or a non PC relative reloc | |
4564 | against a local symbol, then we need to copy the reloc | |
4565 | into the shared library. However, if we are linking with | |
4566 | -Bsymbolic, we do not need to copy a reloc against a | |
4567 | global symbol which is defined in an object we are | |
4568 | including in the link (i.e., DEF_REGULAR is set). At | |
4569 | this point we have not seen all the input files, so it is | |
4570 | possible that DEF_REGULAR is not set now but will be set | |
4571 | later (it is never cleared). In case of a weak definition, | |
4572 | DEF_REGULAR may be cleared later by a strong definition in | |
4573 | a shared library. We account for that possibility below by | |
f4656909 | 4574 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
4575 | table entry. A similar situation occurs when creating |
4576 | shared libraries and symbol visibility changes render the | |
4577 | symbol local. | |
4578 | ||
4579 | If on the other hand, we are creating an executable, we | |
4580 | may need to keep relocations for symbols satisfied by a | |
4581 | dynamic library if we manage to avoid copy relocs for the | |
4582 | symbol. */ | |
411e1bfb | 4583 | dodyn: |
65f38f15 | 4584 | if ((info->shared |
411e1bfb | 4585 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
4586 | || (h != NULL |
4587 | && (! info->symbolic | |
4588 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 4589 | || !h->def_regular)))) |
f4656909 AM |
4590 | || (ELIMINATE_COPY_RELOCS |
4591 | && !info->shared | |
65f38f15 AM |
4592 | && h != NULL |
4593 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 4594 | || !h->def_regular))) |
5bd4f169 | 4595 | { |
ec338859 AM |
4596 | struct ppc_dyn_relocs *p; |
4597 | struct ppc_dyn_relocs **head; | |
4598 | ||
65f38f15 AM |
4599 | /* We must copy these reloc types into the output file. |
4600 | Create a reloc section in dynobj and make room for | |
4601 | this reloc. */ | |
5bd4f169 AM |
4602 | if (sreloc == NULL) |
4603 | { | |
4604 | const char *name; | |
65f38f15 | 4605 | bfd *dynobj; |
5bd4f169 AM |
4606 | |
4607 | name = (bfd_elf_string_from_elf_section | |
4608 | (abfd, | |
4609 | elf_elfheader (abfd)->e_shstrndx, | |
4610 | elf_section_data (sec)->rel_hdr.sh_name)); | |
4611 | if (name == NULL) | |
b34976b6 | 4612 | return FALSE; |
5bd4f169 | 4613 | |
65f38f15 AM |
4614 | if (strncmp (name, ".rela", 5) != 0 |
4615 | || strcmp (bfd_get_section_name (abfd, sec), | |
4616 | name + 5) != 0) | |
4617 | { | |
4618 | (*_bfd_error_handler) | |
d003868e AM |
4619 | (_("%B: bad relocation section name `%s\'"), |
4620 | abfd, name); | |
5d1634d7 | 4621 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
4622 | } |
4623 | ||
65f38f15 | 4624 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
4625 | sreloc = bfd_get_section_by_name (dynobj, name); |
4626 | if (sreloc == NULL) | |
4627 | { | |
4628 | flagword flags; | |
4629 | ||
4630 | sreloc = bfd_make_section (dynobj, name); | |
4631 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
4632 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4633 | if ((sec->flags & SEC_ALLOC) != 0) | |
4634 | flags |= SEC_ALLOC | SEC_LOAD; | |
4635 | if (sreloc == NULL | |
4636 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 4637 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 4638 | return FALSE; |
5bd4f169 | 4639 | } |
65f38f15 | 4640 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
4641 | } |
4642 | ||
65f38f15 AM |
4643 | /* If this is a global symbol, we count the number of |
4644 | relocations we need for this symbol. */ | |
4645 | if (h != NULL) | |
4646 | { | |
ec338859 | 4647 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
4648 | } |
4649 | else | |
4650 | { | |
ec338859 AM |
4651 | /* Track dynamic relocs needed for local syms too. |
4652 | We really need local syms available to do this | |
4653 | easily. Oh well. */ | |
4654 | ||
4655 | asection *s; | |
4656 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4657 | sec, r_symndx); | |
4658 | if (s == NULL) | |
b34976b6 | 4659 | return FALSE; |
ec338859 AM |
4660 | |
4661 | head = ((struct ppc_dyn_relocs **) | |
4662 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 4663 | } |
ec338859 AM |
4664 | |
4665 | p = *head; | |
4666 | if (p == NULL || p->sec != sec) | |
4667 | { | |
4ce794b7 | 4668 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 4669 | if (p == NULL) |
b34976b6 | 4670 | return FALSE; |
ec338859 AM |
4671 | p->next = *head; |
4672 | *head = p; | |
4673 | p->sec = sec; | |
4674 | p->count = 0; | |
4675 | p->pc_count = 0; | |
4676 | } | |
4677 | ||
4678 | p->count += 1; | |
411e1bfb | 4679 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4680 | p->pc_count += 1; |
65f38f15 | 4681 | } |
5bd4f169 | 4682 | break; |
65f38f15 AM |
4683 | |
4684 | default: | |
96e0dda4 | 4685 | break; |
5bd4f169 AM |
4686 | } |
4687 | } | |
4688 | ||
b34976b6 | 4689 | return TRUE; |
5bd4f169 AM |
4690 | } |
4691 | ||
8387904d AM |
4692 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
4693 | of the code entry point, and its section. */ | |
4694 | ||
4695 | static bfd_vma | |
4696 | opd_entry_value (asection *opd_sec, | |
4697 | bfd_vma offset, | |
4698 | asection **code_sec, | |
4699 | bfd_vma *code_off) | |
4700 | { | |
4701 | bfd *opd_bfd = opd_sec->owner; | |
8860955f | 4702 | Elf_Internal_Rela *relocs; |
8387904d | 4703 | Elf_Internal_Rela *lo, *hi, *look; |
645ea6a9 | 4704 | bfd_vma val; |
8387904d | 4705 | |
4b85d634 AM |
4706 | /* No relocs implies we are linking a --just-symbols object. */ |
4707 | if (opd_sec->reloc_count == 0) | |
4708 | { | |
4709 | bfd_vma val; | |
4710 | ||
4711 | if (!bfd_get_section_contents (opd_bfd, opd_sec, &val, offset, 8)) | |
4712 | return (bfd_vma) -1; | |
4713 | ||
4714 | if (code_sec != NULL) | |
4715 | { | |
4716 | asection *sec, *likely = NULL; | |
4717 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
4718 | if (sec->vma <= val | |
4719 | && (sec->flags & SEC_LOAD) != 0 | |
4720 | && (sec->flags & SEC_ALLOC) != 0) | |
4721 | likely = sec; | |
4722 | if (likely != NULL) | |
4723 | { | |
4724 | *code_sec = likely; | |
4725 | if (code_off != NULL) | |
4726 | *code_off = val - likely->vma; | |
4727 | } | |
4728 | } | |
4729 | return val; | |
4730 | } | |
4731 | ||
8860955f AM |
4732 | relocs = ppc64_elf_tdata (opd_bfd)->opd_relocs; |
4733 | if (relocs == NULL) | |
4734 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
645ea6a9 | 4735 | |
8387904d | 4736 | /* Go find the opd reloc at the sym address. */ |
8860955f | 4737 | lo = relocs; |
8387904d AM |
4738 | BFD_ASSERT (lo != NULL); |
4739 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ | |
645ea6a9 | 4740 | val = (bfd_vma) -1; |
8387904d AM |
4741 | while (lo < hi) |
4742 | { | |
4743 | look = lo + (hi - lo) / 2; | |
4744 | if (look->r_offset < offset) | |
4745 | lo = look + 1; | |
4746 | else if (look->r_offset > offset) | |
4747 | hi = look; | |
4748 | else | |
4749 | { | |
4750 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (opd_bfd)->symtab_hdr; | |
4751 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 | |
4752 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
4753 | { | |
4754 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
8387904d AM |
4755 | asection *sec; |
4756 | ||
4757 | if (symndx < symtab_hdr->sh_info) | |
4758 | { | |
4759 | Elf_Internal_Sym *sym; | |
4760 | ||
4761 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4762 | if (sym == NULL) | |
4763 | { | |
4764 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
4765 | symtab_hdr->sh_info, | |
4766 | 0, NULL, NULL, NULL); | |
4767 | if (sym == NULL) | |
645ea6a9 | 4768 | break; |
8387904d AM |
4769 | symtab_hdr->contents = (bfd_byte *) sym; |
4770 | } | |
4771 | ||
4772 | sym += symndx; | |
4773 | val = sym->st_value; | |
4774 | sec = NULL; | |
4775 | if ((sym->st_shndx != SHN_UNDEF | |
4776 | && sym->st_shndx < SHN_LORESERVE) | |
4777 | || sym->st_shndx > SHN_HIRESERVE) | |
4778 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); | |
4779 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
4780 | } | |
4781 | else | |
4782 | { | |
4783 | struct elf_link_hash_entry **sym_hashes; | |
4784 | struct elf_link_hash_entry *rh; | |
4785 | ||
4786 | sym_hashes = elf_sym_hashes (opd_bfd); | |
4787 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
4788 | while (rh->root.type == bfd_link_hash_indirect | |
4789 | || rh->root.type == bfd_link_hash_warning) | |
4790 | rh = ((struct elf_link_hash_entry *) rh->root.u.i.link); | |
4791 | BFD_ASSERT (rh->root.type == bfd_link_hash_defined | |
4792 | || rh->root.type == bfd_link_hash_defweak); | |
4793 | val = rh->root.u.def.value; | |
4794 | sec = rh->root.u.def.section; | |
4795 | } | |
4796 | val += look->r_addend; | |
4797 | if (code_off != NULL) | |
4798 | *code_off = val; | |
4799 | if (code_sec != NULL) | |
4800 | *code_sec = sec; | |
4801 | if (sec != NULL && sec->output_section != NULL) | |
4802 | val += sec->output_section->vma + sec->output_offset; | |
8387904d AM |
4803 | } |
4804 | break; | |
4805 | } | |
4806 | } | |
645ea6a9 | 4807 | |
645ea6a9 | 4808 | return val; |
8387904d AM |
4809 | } |
4810 | ||
5bd4f169 AM |
4811 | /* Return the section that should be marked against GC for a given |
4812 | relocation. */ | |
4813 | ||
4814 | static asection * | |
4ce794b7 | 4815 | ppc64_elf_gc_mark_hook (asection *sec, |
ccfa59ea | 4816 | struct bfd_link_info *info, |
4ce794b7 AM |
4817 | Elf_Internal_Rela *rel, |
4818 | struct elf_link_hash_entry *h, | |
4819 | Elf_Internal_Sym *sym) | |
5bd4f169 | 4820 | { |
ccfa59ea AM |
4821 | asection *rsec; |
4822 | ||
4823 | /* First mark all our entry sym sections. */ | |
4824 | if (info->gc_sym_list != NULL) | |
4825 | { | |
4826 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
4827 | struct bfd_sym_chain *sym = info->gc_sym_list; | |
4828 | ||
4829 | info->gc_sym_list = NULL; | |
4830 | do | |
4831 | { | |
4832 | struct ppc_link_hash_entry *eh; | |
4833 | ||
4834 | eh = (struct ppc_link_hash_entry *) | |
4835 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
4836 | if (eh == NULL) | |
4837 | continue; | |
4838 | if (eh->elf.root.type != bfd_link_hash_defined | |
4839 | && eh->elf.root.type != bfd_link_hash_defweak) | |
4840 | continue; | |
4841 | ||
4842 | if (eh->is_func_descriptor) | |
4843 | rsec = eh->oh->elf.root.u.def.section; | |
8387904d AM |
4844 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
4845 | && opd_entry_value (eh->elf.root.u.def.section, | |
4846 | eh->elf.root.u.def.value, | |
4847 | &rsec, NULL) != (bfd_vma) -1) | |
4848 | ; | |
ccfa59ea AM |
4849 | else |
4850 | continue; | |
4851 | ||
4852 | if (!rsec->gc_mark) | |
4853 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
4854 | ||
4855 | rsec = eh->elf.root.u.def.section; | |
4856 | if (!rsec->gc_mark) | |
4857 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
4858 | ||
4859 | sym = sym->next; | |
4860 | } | |
4861 | while (sym != NULL); | |
4862 | } | |
4863 | ||
4864 | /* Syms return NULL if we're marking .opd, so we avoid marking all | |
4865 | function sections, as all functions are referenced in .opd. */ | |
4866 | rsec = NULL; | |
4867 | if (get_opd_info (sec) != NULL) | |
4868 | return rsec; | |
1e2f5b6e | 4869 | |
5bd4f169 AM |
4870 | if (h != NULL) |
4871 | { | |
04c9666a | 4872 | enum elf_ppc64_reloc_type r_type; |
ccfa59ea | 4873 | struct ppc_link_hash_entry *eh; |
a33d1f77 | 4874 | |
4ce794b7 | 4875 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4876 | switch (r_type) |
5bd4f169 AM |
4877 | { |
4878 | case R_PPC64_GNU_VTINHERIT: | |
4879 | case R_PPC64_GNU_VTENTRY: | |
4880 | break; | |
4881 | ||
4882 | default: | |
4883 | switch (h->root.type) | |
4884 | { | |
4885 | case bfd_link_hash_defined: | |
4886 | case bfd_link_hash_defweak: | |
ccfa59ea AM |
4887 | eh = (struct ppc_link_hash_entry *) h; |
4888 | if (eh->oh != NULL && eh->oh->is_func_descriptor) | |
4889 | eh = eh->oh; | |
1e2f5b6e AM |
4890 | |
4891 | /* Function descriptor syms cause the associated | |
4892 | function code sym section to be marked. */ | |
ccfa59ea AM |
4893 | if (eh->is_func_descriptor) |
4894 | { | |
4895 | /* They also mark their opd section. */ | |
4896 | if (!eh->elf.root.u.def.section->gc_mark) | |
4897 | _bfd_elf_gc_mark (info, eh->elf.root.u.def.section, | |
4898 | ppc64_elf_gc_mark_hook); | |
4899 | ||
4900 | rsec = eh->oh->elf.root.u.def.section; | |
4901 | } | |
8387904d AM |
4902 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
4903 | && opd_entry_value (eh->elf.root.u.def.section, | |
4904 | eh->elf.root.u.def.value, | |
4905 | &rsec, NULL) != (bfd_vma) -1) | |
4906 | { | |
4907 | if (!eh->elf.root.u.def.section->gc_mark) | |
4908 | _bfd_elf_gc_mark (info, eh->elf.root.u.def.section, | |
4909 | ppc64_elf_gc_mark_hook); | |
4910 | } | |
ccfa59ea | 4911 | else |
1e2f5b6e AM |
4912 | rsec = h->root.u.def.section; |
4913 | break; | |
5bd4f169 AM |
4914 | |
4915 | case bfd_link_hash_common: | |
1e2f5b6e AM |
4916 | rsec = h->root.u.c.p->section; |
4917 | break; | |
5bd4f169 AM |
4918 | |
4919 | default: | |
4920 | break; | |
4921 | } | |
4922 | } | |
4923 | } | |
4924 | else | |
4925 | { | |
1e2f5b6e AM |
4926 | asection **opd_sym_section; |
4927 | ||
4928 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
ccfa59ea | 4929 | opd_sym_section = get_opd_info (rsec); |
1e2f5b6e | 4930 | if (opd_sym_section != NULL) |
ccfa59ea AM |
4931 | { |
4932 | if (!rsec->gc_mark) | |
4933 | _bfd_elf_gc_mark (info, rsec, ppc64_elf_gc_mark_hook); | |
4934 | ||
3f764659 | 4935 | rsec = opd_sym_section[sym->st_value / 8]; |
ccfa59ea | 4936 | } |
5bd4f169 AM |
4937 | } |
4938 | ||
1e2f5b6e | 4939 | return rsec; |
5bd4f169 AM |
4940 | } |
4941 | ||
65f38f15 AM |
4942 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4943 | section being removed. */ | |
5bd4f169 | 4944 | |
b34976b6 | 4945 | static bfd_boolean |
4ce794b7 AM |
4946 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
4947 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4948 | { |
411e1bfb | 4949 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4950 | Elf_Internal_Shdr *symtab_hdr; |
4951 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4952 | struct got_entry **local_got_ents; |
5bd4f169 | 4953 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4954 | |
680a3378 AM |
4955 | if ((sec->flags & SEC_ALLOC) == 0) |
4956 | return TRUE; | |
4957 | ||
ec338859 AM |
4958 | elf_section_data (sec)->local_dynrel = NULL; |
4959 | ||
411e1bfb | 4960 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4961 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4962 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4963 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4964 | |
4965 | relend = relocs + sec->reloc_count; | |
4966 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4967 | { |
4968 | unsigned long r_symndx; | |
04c9666a | 4969 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4970 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4971 | char tls_type = 0; |
5bd4f169 | 4972 | |
a33d1f77 | 4973 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 | 4974 | r_type = ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4975 | if (r_symndx >= symtab_hdr->sh_info) |
4976 | { | |
4977 | struct ppc_link_hash_entry *eh; | |
4978 | struct ppc_dyn_relocs **pp; | |
4979 | struct ppc_dyn_relocs *p; | |
4980 | ||
4981 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4982 | eh = (struct ppc_link_hash_entry *) h; | |
4983 | ||
4984 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4985 | if (p->sec == sec) | |
4986 | { | |
4987 | /* Everything must go for SEC. */ | |
4988 | *pp = p->next; | |
4989 | break; | |
4990 | } | |
4991 | } | |
4992 | ||
a33d1f77 AM |
4993 | switch (r_type) |
4994 | { | |
411e1bfb AM |
4995 | case R_PPC64_GOT_TLSLD16: |
4996 | case R_PPC64_GOT_TLSLD16_LO: | |
4997 | case R_PPC64_GOT_TLSLD16_HI: | |
4998 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 4999 | ppc64_tlsld_got (abfd)->refcount -= 1; |
951fd09b | 5000 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5001 | goto dogot; |
5002 | ||
5003 | case R_PPC64_GOT_TLSGD16: | |
5004 | case R_PPC64_GOT_TLSGD16_LO: | |
5005 | case R_PPC64_GOT_TLSGD16_HI: | |
5006 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5007 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5008 | goto dogot; |
5009 | ||
5010 | case R_PPC64_GOT_TPREL16_DS: | |
5011 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5012 | case R_PPC64_GOT_TPREL16_HI: | |
5013 | case R_PPC64_GOT_TPREL16_HA: | |
5014 | tls_type = TLS_TLS | TLS_TPREL; | |
5015 | goto dogot; | |
5016 | ||
5017 | case R_PPC64_GOT_DTPREL16_DS: | |
5018 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
5019 | case R_PPC64_GOT_DTPREL16_HI: | |
5020 | case R_PPC64_GOT_DTPREL16_HA: | |
5021 | tls_type = TLS_TLS | TLS_DTPREL; | |
5022 | goto dogot; | |
5023 | ||
a33d1f77 AM |
5024 | case R_PPC64_GOT16: |
5025 | case R_PPC64_GOT16_DS: | |
5026 | case R_PPC64_GOT16_HA: | |
5027 | case R_PPC64_GOT16_HI: | |
5028 | case R_PPC64_GOT16_LO: | |
5029 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
5030 | dogot: |
5031 | { | |
5032 | struct got_entry *ent; | |
5033 | ||
58ac9f71 AM |
5034 | if (h != NULL) |
5035 | ent = h->got.glist; | |
411e1bfb AM |
5036 | else |
5037 | ent = local_got_ents[r_symndx]; | |
5038 | ||
5039 | for (; ent != NULL; ent = ent->next) | |
5040 | if (ent->addend == rel->r_addend | |
e717da7e | 5041 | && ent->owner == abfd |
411e1bfb AM |
5042 | && ent->tls_type == tls_type) |
5043 | break; | |
5044 | if (ent == NULL) | |
5045 | abort (); | |
5046 | if (ent->got.refcount > 0) | |
5047 | ent->got.refcount -= 1; | |
5048 | } | |
a33d1f77 | 5049 | break; |
65f38f15 | 5050 | |
a33d1f77 AM |
5051 | case R_PPC64_PLT16_HA: |
5052 | case R_PPC64_PLT16_HI: | |
5053 | case R_PPC64_PLT16_LO: | |
5054 | case R_PPC64_PLT32: | |
5055 | case R_PPC64_PLT64: | |
721956f4 AM |
5056 | case R_PPC64_REL14: |
5057 | case R_PPC64_REL14_BRNTAKEN: | |
5058 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 5059 | case R_PPC64_REL24: |
58ac9f71 | 5060 | if (h != NULL) |
5d1634d7 | 5061 | { |
411e1bfb AM |
5062 | struct plt_entry *ent; |
5063 | ||
411e1bfb AM |
5064 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5065 | if (ent->addend == rel->r_addend) | |
5066 | break; | |
5067 | if (ent == NULL) | |
5068 | abort (); | |
5069 | if (ent->plt.refcount > 0) | |
5070 | ent->plt.refcount -= 1; | |
5d1634d7 | 5071 | } |
e86ce104 | 5072 | break; |
5d1634d7 | 5073 | |
a33d1f77 AM |
5074 | default: |
5075 | break; | |
5076 | } | |
5077 | } | |
b34976b6 | 5078 | return TRUE; |
5bd4f169 AM |
5079 | } |
5080 | ||
deb0e272 AM |
5081 | /* The maximum size of .sfpr. */ |
5082 | #define SFPR_MAX (218*4) | |
5083 | ||
5084 | struct sfpr_def_parms | |
5085 | { | |
699733f6 AM |
5086 | const char name[12]; |
5087 | unsigned char lo, hi; | |
deb0e272 AM |
5088 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
5089 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
5090 | }; | |
5091 | ||
5092 | /* Auto-generate _save*, _rest* functions in .sfpr. */ | |
5093 | ||
5094 | static unsigned int | |
5095 | sfpr_define (struct bfd_link_info *info, const struct sfpr_def_parms *parm) | |
5096 | { | |
5097 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
5098 | unsigned int i; | |
5099 | size_t len = strlen (parm->name); | |
5100 | bfd_boolean writing = FALSE; | |
699733f6 | 5101 | char sym[16]; |
deb0e272 AM |
5102 | |
5103 | memcpy (sym, parm->name, len); | |
5104 | sym[len + 2] = 0; | |
5105 | ||
5106 | for (i = parm->lo; i <= parm->hi; i++) | |
5107 | { | |
5108 | struct elf_link_hash_entry *h; | |
5109 | ||
5110 | sym[len + 0] = i / 10 + '0'; | |
5111 | sym[len + 1] = i % 10 + '0'; | |
5112 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); | |
5113 | if (h != NULL | |
f5385ebf | 5114 | && !h->def_regular) |
deb0e272 AM |
5115 | { |
5116 | h->root.type = bfd_link_hash_defined; | |
5117 | h->root.u.def.section = htab->sfpr; | |
5118 | h->root.u.def.value = htab->sfpr->size; | |
5119 | h->type = STT_FUNC; | |
f5385ebf | 5120 | h->def_regular = 1; |
deb0e272 AM |
5121 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
5122 | writing = TRUE; | |
5123 | if (htab->sfpr->contents == NULL) | |
5124 | { | |
5125 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
5126 | if (htab->sfpr->contents == NULL) | |
5127 | return FALSE; | |
5128 | } | |
5129 | } | |
5130 | if (writing) | |
5131 | { | |
5132 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
5133 | if (i != parm->hi) | |
5134 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
5135 | else | |
5136 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
5137 | htab->sfpr->size = p - htab->sfpr->contents; | |
5138 | } | |
5139 | } | |
5140 | ||
5141 | return TRUE; | |
5142 | } | |
5143 | ||
5144 | static bfd_byte * | |
5145 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
5146 | { | |
5147 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5148 | return p + 4; | |
5149 | } | |
5150 | ||
5151 | static bfd_byte * | |
5152 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5153 | { | |
5154 | p = savegpr0 (abfd, p, r); | |
5155 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
5156 | p = p + 4; | |
5157 | bfd_put_32 (abfd, BLR, p); | |
5158 | return p + 4; | |
5159 | } | |
5160 | ||
5161 | static bfd_byte * | |
5162 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
5163 | { | |
5164 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5165 | return p + 4; | |
5166 | } | |
5167 | ||
5168 | static bfd_byte * | |
5169 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5170 | { | |
5171 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
5172 | p = p + 4; | |
5173 | p = restgpr0 (abfd, p, r); | |
5174 | bfd_put_32 (abfd, MTLR_R0, p); | |
5175 | p = p + 4; | |
5176 | if (r == 29) | |
5177 | { | |
5178 | p = restgpr0 (abfd, p, 30); | |
5179 | p = restgpr0 (abfd, p, 31); | |
5180 | } | |
5181 | bfd_put_32 (abfd, BLR, p); | |
5182 | return p + 4; | |
5183 | } | |
5184 | ||
5185 | static bfd_byte * | |
5186 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
5187 | { | |
5188 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5189 | return p + 4; | |
5190 | } | |
5191 | ||
5192 | static bfd_byte * | |
5193 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5194 | { | |
5195 | p = savegpr1 (abfd, p, r); | |
5196 | bfd_put_32 (abfd, BLR, p); | |
5197 | return p + 4; | |
5198 | } | |
5199 | ||
5200 | static bfd_byte * | |
5201 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
5202 | { | |
5203 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5204 | return p + 4; | |
5205 | } | |
5206 | ||
5207 | static bfd_byte * | |
5208 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5209 | { | |
5210 | p = restgpr1 (abfd, p, r); | |
5211 | bfd_put_32 (abfd, BLR, p); | |
5212 | return p + 4; | |
5213 | } | |
5214 | ||
5215 | static bfd_byte * | |
5216 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
5217 | { | |
5218 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5219 | return p + 4; | |
5220 | } | |
5221 | ||
5222 | static bfd_byte * | |
5223 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5224 | { | |
5225 | p = savefpr (abfd, p, r); | |
5226 | bfd_put_32 (abfd, STD_R0_0R1 + 16, p); | |
5227 | p = p + 4; | |
5228 | bfd_put_32 (abfd, BLR, p); | |
5229 | return p + 4; | |
5230 | } | |
5231 | ||
5232 | static bfd_byte * | |
5233 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
5234 | { | |
5235 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
5236 | return p + 4; | |
5237 | } | |
5238 | ||
5239 | static bfd_byte * | |
5240 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
5241 | { | |
5242 | bfd_put_32 (abfd, LD_R0_0R1 + 16, p); | |
5243 | p = p + 4; | |
5244 | p = restfpr (abfd, p, r); | |
5245 | bfd_put_32 (abfd, MTLR_R0, p); | |
5246 | p = p + 4; | |
5247 | if (r == 29) | |
5248 | { | |
5249 | p = restfpr (abfd, p, 30); | |
5250 | p = restfpr (abfd, p, 31); | |
5251 | } | |
5252 | bfd_put_32 (abfd, BLR, p); | |
5253 | return p + 4; | |
5254 | } | |
5255 | ||
5256 | static bfd_byte * | |
5257 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5258 | { | |
5259 | p = savefpr (abfd, p, r); | |
5260 | bfd_put_32 (abfd, BLR, p); | |
5261 | return p + 4; | |
5262 | } | |
5263 | ||
5264 | static bfd_byte * | |
5265 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
5266 | { | |
5267 | p = restfpr (abfd, p, r); | |
5268 | bfd_put_32 (abfd, BLR, p); | |
5269 | return p + 4; | |
5270 | } | |
5271 | ||
5272 | static bfd_byte * | |
5273 | savevr (bfd *abfd, bfd_byte *p, int r) | |
5274 | { | |
5275 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
5276 | p = p + 4; | |
5277 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
5278 | return p + 4; | |
5279 | } | |
5280 | ||
5281 | static bfd_byte * | |
5282 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
5283 | { | |
5284 | p = savevr (abfd, p, r); | |
5285 | bfd_put_32 (abfd, BLR, p); | |
5286 | return p + 4; | |
5287 | } | |
5288 | ||
5289 | static bfd_byte * | |
5290 | restvr (bfd *abfd, bfd_byte *p, int r) | |
5291 | { | |
5292 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
5293 | p = p + 4; | |
5294 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
5295 | return p + 4; | |
5296 | } | |
5297 | ||
5298 | static bfd_byte * | |
5299 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
5300 | { | |
5301 | p = restvr (abfd, p, r); | |
5302 | bfd_put_32 (abfd, BLR, p); | |
5303 | return p + 4; | |
5304 | } | |
5305 | ||
e86ce104 AM |
5306 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
5307 | information on function code symbol entries to their corresponding | |
5308 | function descriptor symbol entries. */ | |
deb0e272 | 5309 | |
b34976b6 | 5310 | static bfd_boolean |
4ce794b7 | 5311 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 5312 | { |
e86ce104 | 5313 | struct bfd_link_info *info; |
65f38f15 | 5314 | struct ppc_link_hash_table *htab; |
411e1bfb | 5315 | struct plt_entry *ent; |
50bc7936 AM |
5316 | struct ppc_link_hash_entry *fh; |
5317 | struct ppc_link_hash_entry *fdh; | |
5318 | bfd_boolean force_local; | |
5bd4f169 | 5319 | |
50bc7936 AM |
5320 | fh = (struct ppc_link_hash_entry *) h; |
5321 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
b34976b6 | 5322 | return TRUE; |
e86ce104 | 5323 | |
50bc7936 AM |
5324 | if (fh->elf.root.type == bfd_link_hash_warning) |
5325 | fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link; | |
e92d460e | 5326 | |
4ce794b7 | 5327 | info = inf; |
65f38f15 | 5328 | htab = ppc_hash_table (info); |
5bd4f169 | 5329 | |
c09bdfe5 AM |
5330 | /* Resolve undefined references to dot-symbols as the value |
5331 | in the function descriptor, if we have one in a regular object. | |
5332 | This is to satisfy cases like ".quad .foo". Calls to functions | |
5333 | in dynamic objects are handled elsewhere. */ | |
5334 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
5335 | && fh->was_undefined | |
5336 | && (fh->oh->elf.root.type == bfd_link_hash_defined | |
5337 | || fh->oh->elf.root.type == bfd_link_hash_defweak) | |
5338 | && get_opd_info (fh->oh->elf.root.u.def.section) != NULL | |
5339 | && opd_entry_value (fh->oh->elf.root.u.def.section, | |
5340 | fh->oh->elf.root.u.def.value, | |
5341 | &fh->elf.root.u.def.section, | |
5342 | &fh->elf.root.u.def.value) != (bfd_vma) -1) | |
5343 | { | |
5344 | fh->elf.root.type = fh->oh->elf.root.type; | |
f5385ebf | 5345 | fh->elf.forced_local = 1; |
c09bdfe5 AM |
5346 | } |
5347 | ||
e86ce104 AM |
5348 | /* If this is a function code symbol, transfer dynamic linking |
5349 | information to the function descriptor symbol. */ | |
50bc7936 | 5350 | if (!fh->is_func) |
b34976b6 | 5351 | return TRUE; |
e86ce104 | 5352 | |
50bc7936 | 5353 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
5354 | if (ent->plt.refcount > 0) |
5355 | break; | |
50bc7936 AM |
5356 | if (ent == NULL |
5357 | || fh->elf.root.root.string[0] != '.' | |
5358 | || fh->elf.root.root.string[1] == '\0') | |
5359 | return TRUE; | |
5bd4f169 | 5360 | |
50bc7936 AM |
5361 | /* Find the corresponding function descriptor symbol. Create it |
5362 | as undefined if necessary. */ | |
5bd4f169 | 5363 | |
50bc7936 AM |
5364 | fdh = get_fdh (fh, htab); |
5365 | if (fdh != NULL) | |
5366 | while (fdh->elf.root.type == bfd_link_hash_indirect | |
5367 | || fdh->elf.root.type == bfd_link_hash_warning) | |
5368 | fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link; | |
5bd4f169 | 5369 | |
50bc7936 AM |
5370 | if (fdh == NULL |
5371 | && info->shared | |
5372 | && (fh->elf.root.type == bfd_link_hash_undefined | |
5373 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
5374 | { | |
5375 | bfd *abfd; | |
5376 | asymbol *newsym; | |
5377 | struct bfd_link_hash_entry *bh; | |
5378 | ||
5379 | abfd = fh->elf.root.u.undef.abfd; | |
5380 | newsym = bfd_make_empty_symbol (abfd); | |
5381 | newsym->name = fh->elf.root.root.string + 1; | |
5382 | newsym->section = bfd_und_section_ptr; | |
5383 | newsym->value = 0; | |
5384 | newsym->flags = BSF_OBJECT; | |
5385 | if (fh->elf.root.type == bfd_link_hash_undefweak) | |
5386 | newsym->flags |= BSF_WEAK; | |
5387 | ||
5388 | bh = &fdh->elf.root; | |
5389 | if ( !(_bfd_generic_link_add_one_symbol | |
5390 | (info, abfd, newsym->name, newsym->flags, | |
5391 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) | |
648cca2c | 5392 | { |
50bc7936 | 5393 | return FALSE; |
648cca2c | 5394 | } |
50bc7936 | 5395 | fdh = (struct ppc_link_hash_entry *) bh; |
f5385ebf | 5396 | fdh->elf.non_elf = 0; |
50bc7936 AM |
5397 | fdh->elf.size = 24; |
5398 | fdh->elf.type = STT_OBJECT; | |
5399 | } | |
648cca2c | 5400 | |
50bc7936 | 5401 | if (fdh != NULL |
f5385ebf | 5402 | && !fdh->elf.forced_local |
50bc7936 | 5403 | && (info->shared |
f5385ebf AM |
5404 | || fdh->elf.def_dynamic |
5405 | || fdh->elf.ref_dynamic | |
50bc7936 AM |
5406 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
5407 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
5408 | { | |
5409 | if (fdh->elf.dynindx == -1) | |
c152c796 | 5410 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
50bc7936 | 5411 | return FALSE; |
f5385ebf AM |
5412 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
5413 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
5414 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
5415 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
50bc7936 | 5416 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
e86ce104 | 5417 | { |
8387904d AM |
5418 | struct plt_entry **ep = &fdh->elf.plt.plist; |
5419 | while (*ep != NULL) | |
5420 | ep = &(*ep)->next; | |
5421 | *ep = fh->elf.plt.plist; | |
5422 | fh->elf.plt.plist = NULL; | |
f5385ebf | 5423 | fdh->elf.needs_plt = 1; |
e86ce104 | 5424 | } |
50bc7936 | 5425 | fdh->is_func_descriptor = 1; |
34814b9f AM |
5426 | fdh->oh = fh; |
5427 | fh->oh = fdh; | |
e86ce104 AM |
5428 | } |
5429 | ||
50bc7936 AM |
5430 | /* Now that the info is on the function descriptor, clear the |
5431 | function code sym info. Any function code syms for which we | |
5432 | don't have a definition in a regular file, we force local. | |
5433 | This prevents a shared library from exporting syms that have | |
5434 | been imported from another library. Function code syms that | |
5435 | are really in the library we must leave global to prevent the | |
5436 | linker dragging in a definition from a static library. */ | |
5437 | force_local | |
5438 | = (info->shared | |
f5385ebf | 5439 | && (!fh->elf.def_regular |
50bc7936 | 5440 | || fdh == NULL |
f5385ebf AM |
5441 | || !fdh->elf.def_regular |
5442 | || fdh->elf.forced_local)); | |
50bc7936 AM |
5443 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
5444 | ||
b34976b6 | 5445 | return TRUE; |
e86ce104 | 5446 | } |
40b8271b | 5447 | |
e86ce104 | 5448 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
5449 | this hook to a) provide some gcc support functions, and b) transfer |
5450 | dynamic linking information gathered so far on function code symbol | |
5451 | entries, to their corresponding function descriptor symbol entries. */ | |
deb0e272 | 5452 | |
b34976b6 | 5453 | static bfd_boolean |
4ce794b7 AM |
5454 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
5455 | struct bfd_link_info *info) | |
e86ce104 AM |
5456 | { |
5457 | struct ppc_link_hash_table *htab; | |
82bd7b59 | 5458 | unsigned int i; |
deb0e272 AM |
5459 | const struct sfpr_def_parms funcs[] = |
5460 | { | |
5461 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
5462 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
5463 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
5464 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
5465 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
5466 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
5467 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
5468 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
5469 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
5470 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
5471 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
5472 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
5473 | }; | |
e86ce104 AM |
5474 | |
5475 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
5476 | if (htab->sfpr == NULL) |
5477 | /* We don't have any relocs. */ | |
b34976b6 | 5478 | return TRUE; |
82bd7b59 | 5479 | |
deb0e272 AM |
5480 | /* Provide any missing _save* and _rest* functions. */ |
5481 | htab->sfpr->size = 0; | |
5482 | for (i = 0; i < sizeof (funcs) / sizeof (funcs[0]); i++) | |
5483 | if (!sfpr_define (info, &funcs[i])) | |
5484 | return FALSE; | |
82bd7b59 | 5485 | |
4ce794b7 | 5486 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
805fc799 | 5487 | |
eea6121a | 5488 | if (htab->sfpr->size == 0) |
deb0e272 | 5489 | _bfd_strip_section_from_output (info, htab->sfpr); |
82bd7b59 | 5490 | |
b34976b6 | 5491 | return TRUE; |
e86ce104 AM |
5492 | } |
5493 | ||
5494 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
5495 | regular object. The current definition is in some section of the | |
5496 | dynamic object, but we're not including those sections. We have to | |
5497 | change the definition to something the rest of the link can | |
5498 | understand. */ | |
5499 | ||
b34976b6 | 5500 | static bfd_boolean |
4ce794b7 AM |
5501 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
5502 | struct elf_link_hash_entry *h) | |
e86ce104 AM |
5503 | { |
5504 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
5505 | asection *s; |
5506 | unsigned int power_of_two; | |
5507 | ||
5508 | htab = ppc_hash_table (info); | |
5509 | ||
5510 | /* Deal with function syms. */ | |
5511 | if (h->type == STT_FUNC | |
f5385ebf | 5512 | || h->needs_plt) |
e86ce104 AM |
5513 | { |
5514 | /* Clear procedure linkage table information for any symbol that | |
5515 | won't need a .plt entry. */ | |
411e1bfb AM |
5516 | struct plt_entry *ent; |
5517 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5518 | if (ent->plt.refcount > 0) | |
5519 | break; | |
8387904d | 5520 | if (ent == NULL |
9c7a29a3 AM |
5521 | || SYMBOL_CALLS_LOCAL (info, h) |
5522 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5523 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 5524 | { |
411e1bfb | 5525 | h->plt.plist = NULL; |
f5385ebf | 5526 | h->needs_plt = 0; |
40b8271b | 5527 | } |
5bd4f169 | 5528 | } |
bbd7ec4a | 5529 | else |
411e1bfb | 5530 | h->plt.plist = NULL; |
5bd4f169 AM |
5531 | |
5532 | /* If this is a weak symbol, and there is a real definition, the | |
5533 | processor independent code will have arranged for us to see the | |
5534 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 5535 | if (h->u.weakdef != NULL) |
5bd4f169 | 5536 | { |
f6e332e6 AM |
5537 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5538 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5539 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5540 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
a23b6845 | 5541 | if (ELIMINATE_COPY_RELOCS) |
f6e332e6 | 5542 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 5543 | return TRUE; |
5bd4f169 AM |
5544 | } |
5545 | ||
5bd4f169 AM |
5546 | /* If we are creating a shared library, we must presume that the |
5547 | only references to the symbol are via the global offset table. | |
5548 | For such cases we need not do anything here; the relocations will | |
5549 | be handled correctly by relocate_section. */ | |
5550 | if (info->shared) | |
b34976b6 | 5551 | return TRUE; |
5bd4f169 | 5552 | |
65f38f15 AM |
5553 | /* If there are no references to this symbol that do not use the |
5554 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 5555 | if (!h->non_got_ref) |
b34976b6 | 5556 | return TRUE; |
65f38f15 | 5557 | |
f4656909 | 5558 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 5559 | { |
f4656909 AM |
5560 | struct ppc_link_hash_entry * eh; |
5561 | struct ppc_dyn_relocs *p; | |
65f38f15 | 5562 | |
f4656909 AM |
5563 | eh = (struct ppc_link_hash_entry *) h; |
5564 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5565 | { | |
5566 | s = p->sec->output_section; | |
5567 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5568 | break; | |
5569 | } | |
5570 | ||
5571 | /* If we didn't find any dynamic relocs in read-only sections, then | |
5572 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
5573 | if (p == NULL) | |
5574 | { | |
f5385ebf | 5575 | h->non_got_ref = 0; |
f4656909 AM |
5576 | return TRUE; |
5577 | } | |
65f38f15 AM |
5578 | } |
5579 | ||
5d35169e | 5580 | if (h->plt.plist != NULL) |
97b639ba AM |
5581 | { |
5582 | /* We should never get here, but unfortunately there are versions | |
5583 | of gcc out there that improperly (for this ABI) put initialized | |
5584 | function pointers, vtable refs and suchlike in read-only | |
5585 | sections. Allow them to proceed, but warn that this might | |
5586 | break at runtime. */ | |
5587 | (*_bfd_error_handler) | |
5588 | (_("copy reloc against `%s' requires lazy plt linking; " | |
5589 | "avoid setting LD_BIND_NOW=1 or upgrade gcc"), | |
5590 | h->root.root.string); | |
5591 | } | |
5d35169e AM |
5592 | |
5593 | /* This is a reference to a symbol defined by a dynamic object which | |
5594 | is not a function. */ | |
5595 | ||
5bd4f169 AM |
5596 | /* We must allocate the symbol in our .dynbss section, which will |
5597 | become part of the .bss section of the executable. There will be | |
5598 | an entry for this symbol in the .dynsym section. The dynamic | |
5599 | object will contain position independent code, so all references | |
5600 | from the dynamic object to this symbol will go through the global | |
5601 | offset table. The dynamic linker will use the .dynsym entry to | |
5602 | determine the address it must put in the global offset table, so | |
5603 | both the dynamic object and the regular object will refer to the | |
5604 | same memory location for the variable. */ | |
5bd4f169 | 5605 | |
04c9666a AM |
5606 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
5607 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
5608 | runtime process image. We need to remember the offset into the |
5609 | .rela.bss section we are going to use. */ | |
5610 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
5611 | { | |
eea6121a | 5612 | htab->relbss->size += sizeof (Elf64_External_Rela); |
f5385ebf | 5613 | h->needs_copy = 1; |
5bd4f169 AM |
5614 | } |
5615 | ||
5616 | /* We need to figure out the alignment required for this symbol. I | |
5617 | have no idea how ELF linkers handle this. */ | |
5618 | power_of_two = bfd_log2 (h->size); | |
5619 | if (power_of_two > 4) | |
5620 | power_of_two = 4; | |
5621 | ||
5622 | /* Apply the required alignment. */ | |
4ce794b7 | 5623 | s = htab->dynbss; |
eea6121a | 5624 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
65f38f15 | 5625 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
5bd4f169 | 5626 | { |
65f38f15 | 5627 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 5628 | return FALSE; |
5bd4f169 AM |
5629 | } |
5630 | ||
5631 | /* Define the symbol as being at this point in the section. */ | |
5632 | h->root.u.def.section = s; | |
eea6121a | 5633 | h->root.u.def.value = s->size; |
5bd4f169 AM |
5634 | |
5635 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 5636 | s->size += h->size; |
5bd4f169 | 5637 | |
b34976b6 | 5638 | return TRUE; |
5bd4f169 AM |
5639 | } |
5640 | ||
e86ce104 AM |
5641 | /* If given a function descriptor symbol, hide both the function code |
5642 | sym and the descriptor. */ | |
5643 | static void | |
4ce794b7 AM |
5644 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
5645 | struct elf_link_hash_entry *h, | |
5646 | bfd_boolean force_local) | |
e86ce104 | 5647 | { |
34814b9f | 5648 | struct ppc_link_hash_entry *eh; |
e86ce104 AM |
5649 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
5650 | ||
34814b9f AM |
5651 | eh = (struct ppc_link_hash_entry *) h; |
5652 | if (eh->is_func_descriptor) | |
e86ce104 | 5653 | { |
34814b9f | 5654 | struct ppc_link_hash_entry *fh = eh->oh; |
e86ce104 | 5655 | |
721956f4 | 5656 | if (fh == NULL) |
d1329ca3 AM |
5657 | { |
5658 | const char *p, *q; | |
5659 | struct ppc_link_hash_table *htab; | |
5660 | char save; | |
5661 | ||
5662 | /* We aren't supposed to use alloca in BFD because on | |
5663 | systems which do not have alloca the version in libiberty | |
5664 | calls xmalloc, which might cause the program to crash | |
5665 | when it runs out of memory. This function doesn't have a | |
5666 | return status, so there's no way to gracefully return an | |
5667 | error. So cheat. We know that string[-1] can be safely | |
34814b9f AM |
5668 | accessed; It's either a string in an ELF string table, |
5669 | or allocated in an objalloc structure. */ | |
d1329ca3 | 5670 | |
34814b9f | 5671 | p = eh->elf.root.root.string - 1; |
d1329ca3 AM |
5672 | save = *p; |
5673 | *(char *) p = '.'; | |
5674 | htab = ppc_hash_table (info); | |
34814b9f AM |
5675 | fh = (struct ppc_link_hash_entry *) |
5676 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
d1329ca3 AM |
5677 | *(char *) p = save; |
5678 | ||
5679 | /* Unfortunately, if it so happens that the string we were | |
5680 | looking for was allocated immediately before this string, | |
5681 | then we overwrote the string terminator. That's the only | |
5682 | reason the lookup should fail. */ | |
5683 | if (fh == NULL) | |
5684 | { | |
34814b9f AM |
5685 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
5686 | while (q >= eh->elf.root.root.string && *q == *p) | |
d1329ca3 | 5687 | --q, --p; |
34814b9f AM |
5688 | if (q < eh->elf.root.root.string && *p == '.') |
5689 | fh = (struct ppc_link_hash_entry *) | |
5690 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
d1329ca3 AM |
5691 | } |
5692 | if (fh != NULL) | |
5693 | { | |
34814b9f AM |
5694 | eh->oh = fh; |
5695 | fh->oh = eh; | |
d1329ca3 AM |
5696 | } |
5697 | } | |
e86ce104 | 5698 | if (fh != NULL) |
34814b9f | 5699 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
e86ce104 AM |
5700 | } |
5701 | } | |
5702 | ||
411e1bfb | 5703 | static bfd_boolean |
8843416a AM |
5704 | get_sym_h (struct elf_link_hash_entry **hp, |
5705 | Elf_Internal_Sym **symp, | |
5706 | asection **symsecp, | |
5707 | char **tls_maskp, | |
5708 | Elf_Internal_Sym **locsymsp, | |
5709 | unsigned long r_symndx, | |
5710 | bfd *ibfd) | |
411e1bfb AM |
5711 | { |
5712 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5713 | ||
5714 | if (r_symndx >= symtab_hdr->sh_info) | |
5715 | { | |
5716 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5717 | struct elf_link_hash_entry *h; | |
5718 | ||
5719 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5720 | while (h->root.type == bfd_link_hash_indirect | |
5721 | || h->root.type == bfd_link_hash_warning) | |
5722 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5723 | ||
5724 | if (hp != NULL) | |
5725 | *hp = h; | |
5726 | ||
5727 | if (symp != NULL) | |
5728 | *symp = NULL; | |
5729 | ||
5730 | if (symsecp != NULL) | |
5731 | { | |
5732 | asection *symsec = NULL; | |
5733 | if (h->root.type == bfd_link_hash_defined | |
5734 | || h->root.type == bfd_link_hash_defweak) | |
5735 | symsec = h->root.u.def.section; | |
5736 | *symsecp = symsec; | |
5737 | } | |
5738 | ||
e7b938ca | 5739 | if (tls_maskp != NULL) |
411e1bfb AM |
5740 | { |
5741 | struct ppc_link_hash_entry *eh; | |
5742 | ||
5743 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 5744 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
5745 | } |
5746 | } | |
5747 | else | |
5748 | { | |
5749 | Elf_Internal_Sym *sym; | |
5750 | Elf_Internal_Sym *locsyms = *locsymsp; | |
5751 | ||
5752 | if (locsyms == NULL) | |
5753 | { | |
5754 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5755 | if (locsyms == NULL) | |
5756 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5757 | symtab_hdr->sh_info, | |
5758 | 0, NULL, NULL, NULL); | |
5759 | if (locsyms == NULL) | |
5760 | return FALSE; | |
5761 | *locsymsp = locsyms; | |
5762 | } | |
5763 | sym = locsyms + r_symndx; | |
5764 | ||
5765 | if (hp != NULL) | |
5766 | *hp = NULL; | |
5767 | ||
5768 | if (symp != NULL) | |
5769 | *symp = sym; | |
5770 | ||
5771 | if (symsecp != NULL) | |
5772 | { | |
5773 | asection *symsec = NULL; | |
5774 | if ((sym->st_shndx != SHN_UNDEF | |
5775 | && sym->st_shndx < SHN_LORESERVE) | |
5776 | || sym->st_shndx > SHN_HIRESERVE) | |
5777 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
5778 | *symsecp = symsec; | |
5779 | } | |
5780 | ||
e7b938ca | 5781 | if (tls_maskp != NULL) |
411e1bfb AM |
5782 | { |
5783 | struct got_entry **lgot_ents; | |
e7b938ca | 5784 | char *tls_mask; |
411e1bfb | 5785 | |
e7b938ca | 5786 | tls_mask = NULL; |
411e1bfb AM |
5787 | lgot_ents = elf_local_got_ents (ibfd); |
5788 | if (lgot_ents != NULL) | |
5789 | { | |
e7b938ca AM |
5790 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
5791 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 5792 | } |
e7b938ca | 5793 | *tls_maskp = tls_mask; |
411e1bfb AM |
5794 | } |
5795 | } | |
5796 | return TRUE; | |
5797 | } | |
5798 | ||
e7b938ca | 5799 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 5800 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 5801 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
5802 | |
5803 | static int | |
0d4792f7 AM |
5804 | get_tls_mask (char **tls_maskp, unsigned long *toc_symndx, |
5805 | Elf_Internal_Sym **locsymsp, | |
4ce794b7 | 5806 | const Elf_Internal_Rela *rel, bfd *ibfd) |
411e1bfb AM |
5807 | { |
5808 | unsigned long r_symndx; | |
0d4792f7 | 5809 | int next_r; |
411e1bfb AM |
5810 | struct elf_link_hash_entry *h; |
5811 | Elf_Internal_Sym *sym; | |
5812 | asection *sec; | |
5813 | bfd_vma off; | |
5814 | ||
5815 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5816 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 5817 | return 0; |
411e1bfb | 5818 | |
e7b938ca | 5819 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
5820 | || sec == NULL |
5821 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 5822 | return 1; |
411e1bfb AM |
5823 | |
5824 | /* Look inside a TOC section too. */ | |
5825 | if (h != NULL) | |
5826 | { | |
5827 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
5828 | off = h->root.u.def.value; | |
5829 | } | |
5830 | else | |
5831 | off = sym->st_value; | |
5832 | off += rel->r_addend; | |
5833 | BFD_ASSERT (off % 8 == 0); | |
5834 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 5835 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 5836 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 5837 | return 0; |
0d4792f7 AM |
5838 | if (toc_symndx != NULL) |
5839 | *toc_symndx = r_symndx; | |
5840 | if ((h == NULL | |
5841 | || ((h->root.type == bfd_link_hash_defined | |
5842 | || h->root.type == bfd_link_hash_defweak) | |
f5385ebf | 5843 | && !h->def_dynamic)) |
0d4792f7 AM |
5844 | && (next_r == -1 || next_r == -2)) |
5845 | return 1 - next_r; | |
951fd09b | 5846 | return 1; |
411e1bfb AM |
5847 | } |
5848 | ||
754021d0 | 5849 | /* Adjust all global syms defined in opd sections. In gcc generated |
8387904d | 5850 | code for the old ABI, these will already have been done. */ |
754021d0 AM |
5851 | |
5852 | static bfd_boolean | |
5853 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
5854 | { | |
5855 | struct ppc_link_hash_entry *eh; | |
5856 | asection *sym_sec; | |
5857 | long *opd_adjust; | |
5858 | ||
5859 | if (h->root.type == bfd_link_hash_indirect) | |
5860 | return TRUE; | |
5861 | ||
5862 | if (h->root.type == bfd_link_hash_warning) | |
5863 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5864 | ||
5865 | if (h->root.type != bfd_link_hash_defined | |
5866 | && h->root.type != bfd_link_hash_defweak) | |
5867 | return TRUE; | |
5868 | ||
5869 | eh = (struct ppc_link_hash_entry *) h; | |
5870 | if (eh->adjust_done) | |
5871 | return TRUE; | |
5872 | ||
5873 | sym_sec = eh->elf.root.u.def.section; | |
4025353c AM |
5874 | opd_adjust = get_opd_info (sym_sec); |
5875 | if (opd_adjust != NULL) | |
754021d0 | 5876 | { |
3f764659 | 5877 | long adjust = opd_adjust[eh->elf.root.u.def.value / 8]; |
4025353c AM |
5878 | if (adjust == -1) |
5879 | { | |
5880 | /* This entry has been deleted. */ | |
81688140 AM |
5881 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
5882 | if (dsec == NULL) | |
5883 | { | |
5884 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
5885 | if (elf_discarded_section (dsec)) | |
5886 | { | |
5887 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; | |
5888 | break; | |
5889 | } | |
5890 | } | |
4025353c | 5891 | eh->elf.root.u.def.value = 0; |
81688140 | 5892 | eh->elf.root.u.def.section = dsec; |
4025353c AM |
5893 | } |
5894 | else | |
5895 | eh->elf.root.u.def.value += adjust; | |
754021d0 AM |
5896 | eh->adjust_done = 1; |
5897 | } | |
5898 | return TRUE; | |
5899 | } | |
5900 | ||
5901 | /* Remove unused Official Procedure Descriptor entries. Currently we | |
5902 | only remove those associated with functions in discarded link-once | |
5903 | sections, or weakly defined functions that have been overridden. It | |
5904 | would be possible to remove many more entries for statically linked | |
5905 | applications. */ | |
5906 | ||
b34976b6 | 5907 | bfd_boolean |
3f764659 JJ |
5908 | ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info, |
5909 | bfd_boolean non_overlapping) | |
1e2f5b6e AM |
5910 | { |
5911 | bfd *ibfd; | |
754021d0 | 5912 | bfd_boolean some_edited = FALSE; |
3f764659 | 5913 | asection *need_pad = NULL; |
1e2f5b6e | 5914 | |
411e1bfb | 5915 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
5916 | { |
5917 | asection *sec; | |
5918 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5919 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 5920 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
5921 | struct elf_link_hash_entry **sym_hashes; |
5922 | bfd_vma offset; | |
d6fe2dc1 | 5923 | bfd_size_type amt; |
4025353c | 5924 | long *opd_adjust; |
3f764659 JJ |
5925 | bfd_boolean need_edit, add_aux_fields; |
5926 | bfd_size_type cnt_16b = 0; | |
1e2f5b6e AM |
5927 | |
5928 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
5929 | if (sec == NULL) | |
5930 | continue; | |
5931 | ||
3f764659 | 5932 | amt = sec->size * sizeof (long) / 8; |
4025353c AM |
5933 | opd_adjust = get_opd_info (sec); |
5934 | if (opd_adjust == NULL) | |
d6fe2dc1 | 5935 | { |
4b85d634 AM |
5936 | /* check_relocs hasn't been called. Must be a ld -r link |
5937 | or --just-symbols object. */ | |
4025353c AM |
5938 | opd_adjust = bfd_zalloc (obfd, amt); |
5939 | ppc64_elf_section_data (sec)->opd.adjust = opd_adjust; | |
d6fe2dc1 | 5940 | } |
4025353c | 5941 | memset (opd_adjust, 0, amt); |
1e2f5b6e | 5942 | |
4b85d634 AM |
5943 | if (sec->sec_info_type == ELF_INFO_TYPE_JUST_SYMS) |
5944 | continue; | |
5945 | ||
1e2f5b6e AM |
5946 | if (sec->output_section == bfd_abs_section_ptr) |
5947 | continue; | |
5948 | ||
5949 | /* Look through the section relocs. */ | |
5950 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
5951 | continue; | |
5952 | ||
6cdc0ccc | 5953 | local_syms = NULL; |
1e2f5b6e AM |
5954 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
5955 | sym_hashes = elf_sym_hashes (ibfd); | |
5956 | ||
5957 | /* Read the relocations. */ | |
4ce794b7 | 5958 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 5959 | info->keep_memory); |
1e2f5b6e | 5960 | if (relstart == NULL) |
b34976b6 | 5961 | return FALSE; |
1e2f5b6e AM |
5962 | |
5963 | /* First run through the relocs to check they are sane, and to | |
5964 | determine whether we need to edit this opd section. */ | |
b34976b6 | 5965 | need_edit = FALSE; |
3f764659 | 5966 | need_pad = sec; |
1e2f5b6e AM |
5967 | offset = 0; |
5968 | relend = relstart + sec->reloc_count; | |
50bc7936 | 5969 | for (rel = relstart; rel < relend; ) |
1e2f5b6e | 5970 | { |
04c9666a | 5971 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
5972 | unsigned long r_symndx; |
5973 | asection *sym_sec; | |
5974 | struct elf_link_hash_entry *h; | |
5975 | Elf_Internal_Sym *sym; | |
5976 | ||
3f764659 | 5977 | /* .opd contains a regular array of 16 or 24 byte entries. We're |
1e2f5b6e AM |
5978 | only interested in the reloc pointing to a function entry |
5979 | point. */ | |
50bc7936 AM |
5980 | if (rel->r_offset != offset |
5981 | || rel + 1 >= relend | |
5982 | || (rel + 1)->r_offset != offset + 8) | |
1e2f5b6e AM |
5983 | { |
5984 | /* If someone messes with .opd alignment then after a | |
5985 | "ld -r" we might have padding in the middle of .opd. | |
5986 | Also, there's nothing to prevent someone putting | |
5987 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 5988 | optimization for them! */ |
3f764659 | 5989 | broken_opd: |
1e2f5b6e | 5990 | (*_bfd_error_handler) |
d003868e | 5991 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
b34976b6 | 5992 | need_edit = FALSE; |
1e2f5b6e AM |
5993 | break; |
5994 | } | |
5995 | ||
50bc7936 AM |
5996 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
5997 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
5998 | { | |
5999 | (*_bfd_error_handler) | |
d003868e AM |
6000 | (_("%B: unexpected reloc type %u in .opd section"), |
6001 | ibfd, r_type); | |
50bc7936 AM |
6002 | need_edit = FALSE; |
6003 | break; | |
6004 | } | |
6005 | ||
1e2f5b6e | 6006 | r_symndx = ELF64_R_SYM (rel->r_info); |
411e1bfb AM |
6007 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6008 | r_symndx, ibfd)) | |
50bc7936 | 6009 | goto error_ret; |
1e2f5b6e AM |
6010 | |
6011 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
6012 | { | |
411e1bfb AM |
6013 | const char *sym_name; |
6014 | if (h != NULL) | |
6015 | sym_name = h->root.root.string; | |
6016 | else | |
be8dd2ca | 6017 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym); |
411e1bfb | 6018 | |
1e2f5b6e | 6019 | (*_bfd_error_handler) |
d003868e AM |
6020 | (_("%B: undefined sym `%s' in .opd section"), |
6021 | ibfd, sym_name); | |
b34976b6 | 6022 | need_edit = FALSE; |
1e2f5b6e AM |
6023 | break; |
6024 | } | |
6025 | ||
51020317 AM |
6026 | /* opd entries are always for functions defined in the |
6027 | current input bfd. If the symbol isn't defined in the | |
6028 | input bfd, then we won't be using the function in this | |
6029 | bfd; It must be defined in a linkonce section in another | |
6030 | bfd, or is weak. It's also possible that we are | |
6031 | discarding the function due to a linker script /DISCARD/, | |
6032 | which we test for via the output_section. */ | |
6033 | if (sym_sec->owner != ibfd | |
6034 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 6035 | need_edit = TRUE; |
1e2f5b6e | 6036 | |
50bc7936 | 6037 | rel += 2; |
3f764659 JJ |
6038 | if (rel == relend |
6039 | || (rel + 1 == relend && rel->r_offset == offset + 16)) | |
6040 | { | |
6041 | if (sec->size == offset + 24) | |
6042 | { | |
6043 | need_pad = NULL; | |
6044 | break; | |
6045 | } | |
6046 | if (rel == relend && sec->size == offset + 16) | |
6047 | { | |
6048 | cnt_16b++; | |
6049 | break; | |
6050 | } | |
6051 | goto broken_opd; | |
6052 | } | |
6053 | ||
6054 | if (rel->r_offset == offset + 24) | |
6055 | offset += 24; | |
6056 | else if (rel->r_offset != offset + 16) | |
6057 | goto broken_opd; | |
6058 | else if (rel + 1 < relend | |
6059 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
6060 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
6061 | { | |
6062 | offset += 16; | |
6063 | cnt_16b++; | |
6064 | } | |
6065 | else if (rel + 2 < relend | |
6066 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_ADDR64 | |
6067 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC) | |
6068 | { | |
6069 | offset += 24; | |
6070 | rel += 1; | |
6071 | } | |
6072 | else | |
6073 | goto broken_opd; | |
1e2f5b6e AM |
6074 | } |
6075 | ||
3f764659 JJ |
6076 | add_aux_fields = non_overlapping && cnt_16b > 0; |
6077 | ||
6078 | if (need_edit || add_aux_fields) | |
1e2f5b6e AM |
6079 | { |
6080 | Elf_Internal_Rela *write_rel; | |
6081 | bfd_byte *rptr, *wptr; | |
3f764659 | 6082 | bfd_byte *new_contents = NULL; |
b34976b6 | 6083 | bfd_boolean skip; |
3f764659 | 6084 | long opd_ent_size; |
1e2f5b6e AM |
6085 | |
6086 | /* This seems a waste of time as input .opd sections are all | |
6087 | zeros as generated by gcc, but I suppose there's no reason | |
6088 | this will always be so. We might start putting something in | |
6089 | the third word of .opd entries. */ | |
6090 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
6091 | { | |
eea6121a AM |
6092 | bfd_byte *loc; |
6093 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
6cdc0ccc | 6094 | { |
eea6121a AM |
6095 | if (loc != NULL) |
6096 | free (loc); | |
50bc7936 | 6097 | error_ret: |
6cdc0ccc AM |
6098 | if (local_syms != NULL |
6099 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6100 | free (local_syms); | |
6cdc0ccc AM |
6101 | if (elf_section_data (sec)->relocs != relstart) |
6102 | free (relstart); | |
b34976b6 | 6103 | return FALSE; |
6cdc0ccc | 6104 | } |
1e2f5b6e AM |
6105 | sec->contents = loc; |
6106 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
6107 | } | |
6108 | ||
6109 | elf_section_data (sec)->relocs = relstart; | |
6110 | ||
6111 | wptr = sec->contents; | |
6112 | rptr = sec->contents; | |
3f764659 JJ |
6113 | new_contents = sec->contents; |
6114 | ||
6115 | if (add_aux_fields) | |
6116 | { | |
6117 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
6118 | if (new_contents == NULL) | |
6119 | return FALSE; | |
6120 | need_pad = FALSE; | |
6121 | wptr = new_contents; | |
6122 | } | |
6123 | ||
1e2f5b6e | 6124 | write_rel = relstart; |
b34976b6 | 6125 | skip = FALSE; |
1e2f5b6e | 6126 | offset = 0; |
3f764659 | 6127 | opd_ent_size = 0; |
1e2f5b6e AM |
6128 | for (rel = relstart; rel < relend; rel++) |
6129 | { | |
50bc7936 AM |
6130 | unsigned long r_symndx; |
6131 | asection *sym_sec; | |
6132 | struct elf_link_hash_entry *h; | |
6133 | Elf_Internal_Sym *sym; | |
6134 | ||
6135 | r_symndx = ELF64_R_SYM (rel->r_info); | |
6136 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
d37c89e5 | 6137 | r_symndx, ibfd)) |
50bc7936 AM |
6138 | goto error_ret; |
6139 | ||
1e2f5b6e AM |
6140 | if (rel->r_offset == offset) |
6141 | { | |
50bc7936 | 6142 | struct ppc_link_hash_entry *fdh = NULL; |
3f764659 JJ |
6143 | |
6144 | /* See if the .opd entry is full 24 byte or | |
6145 | 16 byte (with fd_aux entry overlapped with next | |
6146 | fd_func). */ | |
6147 | opd_ent_size = 24; | |
6148 | if ((rel + 2 == relend && sec->size == offset + 16) | |
6149 | || (rel + 3 < relend | |
6150 | && rel[2].r_offset == offset + 16 | |
6151 | && rel[3].r_offset == offset + 24 | |
6152 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_ADDR64 | |
6153 | && ELF64_R_TYPE (rel[3].r_info) == R_PPC64_TOC)) | |
6154 | opd_ent_size = 16; | |
6155 | ||
4025353c AM |
6156 | if (h != NULL |
6157 | && h->root.root.string[0] == '.') | |
50bc7936 AM |
6158 | fdh = get_fdh ((struct ppc_link_hash_entry *) h, |
6159 | ppc_hash_table (info)); | |
1e2f5b6e | 6160 | |
51020317 AM |
6161 | skip = (sym_sec->owner != ibfd |
6162 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
6163 | if (skip) |
6164 | { | |
4025353c | 6165 | if (fdh != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
6166 | { |
6167 | /* Arrange for the function descriptor sym | |
6168 | to be dropped. */ | |
d6fe2dc1 AM |
6169 | fdh->elf.root.u.def.value = 0; |
6170 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 | 6171 | } |
3f764659 | 6172 | opd_adjust[rel->r_offset / 8] = -1; |
a4aa0fb7 AM |
6173 | } |
6174 | else | |
1e2f5b6e AM |
6175 | { |
6176 | /* We'll be keeping this opd entry. */ | |
6177 | ||
4025353c | 6178 | if (fdh != NULL) |
1e2f5b6e | 6179 | { |
754021d0 AM |
6180 | /* Redefine the function descriptor symbol to |
6181 | this location in the opd section. It is | |
6182 | necessary to update the value here rather | |
6183 | than using an array of adjustments as we do | |
6184 | for local symbols, because various places | |
6185 | in the generic ELF code use the value | |
6186 | stored in u.def.value. */ | |
3f764659 | 6187 | fdh->elf.root.u.def.value = wptr - new_contents; |
754021d0 | 6188 | fdh->adjust_done = 1; |
1e2f5b6e | 6189 | } |
754021d0 AM |
6190 | |
6191 | /* Local syms are a bit tricky. We could | |
6192 | tweak them as they can be cached, but | |
6193 | we'd need to look through the local syms | |
6194 | for the function descriptor sym which we | |
6195 | don't have at the moment. So keep an | |
6196 | array of adjustments. */ | |
3f764659 JJ |
6197 | opd_adjust[rel->r_offset / 8] |
6198 | = (wptr - new_contents) - (rptr - sec->contents); | |
1e2f5b6e AM |
6199 | |
6200 | if (wptr != rptr) | |
3f764659 JJ |
6201 | memcpy (wptr, rptr, opd_ent_size); |
6202 | wptr += opd_ent_size; | |
6203 | if (add_aux_fields && opd_ent_size == 16) | |
6204 | { | |
6205 | memset (wptr, '\0', 8); | |
6206 | wptr += 8; | |
6207 | } | |
1e2f5b6e | 6208 | } |
3f764659 JJ |
6209 | rptr += opd_ent_size; |
6210 | offset += opd_ent_size; | |
1e2f5b6e AM |
6211 | } |
6212 | ||
50bc7936 AM |
6213 | if (skip) |
6214 | { | |
6215 | BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info))); | |
6216 | if (info->shared) | |
6217 | { | |
6218 | /* We won't be needing dynamic relocs here. */ | |
6219 | struct ppc_dyn_relocs **pp; | |
6220 | struct ppc_dyn_relocs *p; | |
6221 | ||
6222 | if (h != NULL) | |
6223 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
6224 | else if (sym_sec != NULL) | |
6225 | pp = ((struct ppc_dyn_relocs **) | |
6226 | &elf_section_data (sym_sec)->local_dynrel); | |
6227 | else | |
6228 | pp = ((struct ppc_dyn_relocs **) | |
6229 | &elf_section_data (sec)->local_dynrel); | |
6230 | while ((p = *pp) != NULL) | |
6231 | { | |
6232 | if (p->sec == sec) | |
6233 | { | |
6234 | p->count -= 1; | |
6235 | if (p->count == 0) | |
d37c89e5 | 6236 | *pp = p->next; |
50bc7936 AM |
6237 | break; |
6238 | } | |
6239 | pp = &p->next; | |
6240 | } | |
6241 | } | |
6242 | } | |
6243 | else | |
1e2f5b6e | 6244 | { |
50bc7936 AM |
6245 | /* We need to adjust any reloc offsets to point to the |
6246 | new opd entries. While we're at it, we may as well | |
6247 | remove redundant relocs. */ | |
3f764659 | 6248 | rel->r_offset += opd_adjust[(offset - opd_ent_size) / 8]; |
1e2f5b6e AM |
6249 | if (write_rel != rel) |
6250 | memcpy (write_rel, rel, sizeof (*rel)); | |
6251 | ++write_rel; | |
6252 | } | |
6253 | } | |
6254 | ||
3f764659 | 6255 | sec->size = wptr - new_contents; |
1e2f5b6e | 6256 | sec->reloc_count = write_rel - relstart; |
3f764659 JJ |
6257 | if (add_aux_fields) |
6258 | { | |
6259 | free (sec->contents); | |
6260 | sec->contents = new_contents; | |
6261 | } | |
6262 | ||
cdcf6e38 AM |
6263 | /* Fudge the size too, as this is used later in |
6264 | elf_bfd_final_link if we are emitting relocs. */ | |
6265 | elf_section_data (sec)->rel_hdr.sh_size | |
6266 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
6267 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
754021d0 | 6268 | some_edited = TRUE; |
1e2f5b6e | 6269 | } |
6cdc0ccc | 6270 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 6271 | free (relstart); |
6cdc0ccc | 6272 | |
411e1bfb AM |
6273 | if (local_syms != NULL |
6274 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6275 | { | |
6276 | if (!info->keep_memory) | |
6277 | free (local_syms); | |
6278 | else | |
6279 | symtab_hdr->contents = (unsigned char *) local_syms; | |
6280 | } | |
6281 | } | |
6282 | ||
754021d0 AM |
6283 | if (some_edited) |
6284 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
6285 | ||
3f764659 JJ |
6286 | /* If we are doing a final link and the last .opd entry is just 16 byte |
6287 | long, add a 8 byte padding after it. */ | |
6288 | if (need_pad != NULL && !info->relocatable) | |
6289 | { | |
6290 | bfd_byte *p; | |
6291 | ||
6292 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
6293 | { | |
6294 | BFD_ASSERT (need_pad->size > 0); | |
6295 | ||
6296 | p = bfd_malloc (need_pad->size + 8); | |
6297 | if (p == NULL) | |
6298 | return FALSE; | |
699733f6 | 6299 | |
3f764659 JJ |
6300 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
6301 | p, 0, need_pad->size)) | |
6302 | return FALSE; | |
6303 | ||
6304 | need_pad->contents = p; | |
6305 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
6306 | } | |
6307 | else | |
6308 | { | |
6309 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
6310 | if (p == NULL) | |
6311 | return FALSE; | |
6312 | ||
6313 | need_pad->contents = p; | |
6314 | } | |
6315 | ||
6316 | memset (need_pad->contents + need_pad->size, 0, 8); | |
6317 | need_pad->size += 8; | |
6318 | } | |
6319 | ||
411e1bfb AM |
6320 | return TRUE; |
6321 | } | |
6322 | ||
e1918d23 | 6323 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
411e1bfb | 6324 | |
e1918d23 | 6325 | asection * |
4ce794b7 | 6326 | ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
411e1bfb | 6327 | { |
411e1bfb AM |
6328 | struct ppc_link_hash_table *htab; |
6329 | ||
411e1bfb | 6330 | htab = ppc_hash_table (info); |
a48ebf4d AM |
6331 | if (htab->tls_get_addr != NULL) |
6332 | { | |
8387904d | 6333 | struct ppc_link_hash_entry *h = htab->tls_get_addr; |
a48ebf4d | 6334 | |
8387904d AM |
6335 | while (h->elf.root.type == bfd_link_hash_indirect |
6336 | || h->elf.root.type == bfd_link_hash_warning) | |
6337 | h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link; | |
a48ebf4d AM |
6338 | |
6339 | htab->tls_get_addr = h; | |
8387904d AM |
6340 | |
6341 | if (htab->tls_get_addr_fd == NULL | |
6342 | && h->oh != NULL | |
6343 | && h->oh->is_func_descriptor) | |
6344 | htab->tls_get_addr_fd = h->oh; | |
6345 | } | |
6346 | ||
6347 | if (htab->tls_get_addr_fd != NULL) | |
6348 | { | |
6349 | struct ppc_link_hash_entry *h = htab->tls_get_addr_fd; | |
6350 | ||
6351 | while (h->elf.root.type == bfd_link_hash_indirect | |
6352 | || h->elf.root.type == bfd_link_hash_warning) | |
6353 | h = (struct ppc_link_hash_entry *) h->elf.root.u.i.link; | |
6354 | ||
6355 | htab->tls_get_addr_fd = h; | |
a48ebf4d AM |
6356 | } |
6357 | ||
e1918d23 | 6358 | return _bfd_elf_tls_setup (obfd, info); |
951fd09b | 6359 | } |
411e1bfb | 6360 | |
951fd09b AM |
6361 | /* Run through all the TLS relocs looking for optimization |
6362 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
6363 | a preliminary section layout so that we know the TLS segment | |
6364 | offsets. We can't optimize earlier because some optimizations need | |
6365 | to know the tp offset, and we need to optimize before allocating | |
6366 | dynamic relocations. */ | |
6367 | ||
6368 | bfd_boolean | |
4ce794b7 | 6369 | ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
951fd09b AM |
6370 | { |
6371 | bfd *ibfd; | |
6372 | asection *sec; | |
6373 | struct ppc_link_hash_table *htab; | |
6374 | ||
1049f94e | 6375 | if (info->relocatable || info->shared) |
411e1bfb AM |
6376 | return TRUE; |
6377 | ||
951fd09b | 6378 | htab = ppc_hash_table (info); |
411e1bfb AM |
6379 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
6380 | { | |
6381 | Elf_Internal_Sym *locsyms = NULL; | |
6382 | ||
6383 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
6384 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
6385 | { | |
6386 | Elf_Internal_Rela *relstart, *rel, *relend; | |
6387 | int expecting_tls_get_addr; | |
6388 | ||
6389 | /* Read the relocations. */ | |
4ce794b7 | 6390 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 6391 | info->keep_memory); |
411e1bfb AM |
6392 | if (relstart == NULL) |
6393 | return FALSE; | |
6394 | ||
6395 | expecting_tls_get_addr = 0; | |
6396 | relend = relstart + sec->reloc_count; | |
6397 | for (rel = relstart; rel < relend; rel++) | |
6398 | { | |
6399 | enum elf_ppc64_reloc_type r_type; | |
6400 | unsigned long r_symndx; | |
6401 | struct elf_link_hash_entry *h; | |
6402 | Elf_Internal_Sym *sym; | |
6403 | asection *sym_sec; | |
e7b938ca AM |
6404 | char *tls_mask; |
6405 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 6406 | bfd_vma value; |
951fd09b | 6407 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
6408 | |
6409 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 6410 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
6411 | r_symndx, ibfd)) |
6412 | { | |
6413 | err_free_rel: | |
6414 | if (elf_section_data (sec)->relocs != relstart) | |
6415 | free (relstart); | |
6416 | if (locsyms != NULL | |
6417 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
6418 | != (unsigned char *) locsyms)) | |
6419 | free (locsyms); | |
6420 | return FALSE; | |
6421 | } | |
6422 | ||
6423 | if (h != NULL) | |
6424 | { | |
6425 | if (h->root.type != bfd_link_hash_defined | |
6426 | && h->root.type != bfd_link_hash_defweak) | |
6427 | continue; | |
6428 | value = h->root.u.def.value; | |
6429 | } | |
6430 | else | |
4025353c AM |
6431 | /* Symbols referenced by TLS relocs must be of type |
6432 | STT_TLS. So no need for .opd local sym adjust. */ | |
6433 | value = sym->st_value; | |
951fd09b | 6434 | |
411e1bfb | 6435 | ok_tprel = FALSE; |
951fd09b AM |
6436 | is_local = FALSE; |
6437 | if (h == NULL | |
f5385ebf | 6438 | || !h->def_dynamic) |
411e1bfb | 6439 | { |
951fd09b | 6440 | is_local = TRUE; |
411e1bfb AM |
6441 | value += sym_sec->output_offset; |
6442 | value += sym_sec->output_section->vma; | |
e1918d23 | 6443 | value -= htab->elf.tls_sec->vma; |
411e1bfb AM |
6444 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) |
6445 | < (bfd_vma) 1 << 32); | |
6446 | } | |
6447 | ||
4ce794b7 | 6448 | r_type = ELF64_R_TYPE (rel->r_info); |
411e1bfb AM |
6449 | switch (r_type) |
6450 | { | |
6451 | case R_PPC64_GOT_TLSLD16: | |
6452 | case R_PPC64_GOT_TLSLD16_LO: | |
6453 | case R_PPC64_GOT_TLSLD16_HI: | |
6454 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
6455 | /* These relocs should never be against a symbol |
6456 | defined in a shared lib. Leave them alone if | |
6457 | that turns out to be the case. */ | |
e717da7e | 6458 | ppc64_tlsld_got (ibfd)->refcount -= 1; |
951fd09b AM |
6459 | if (!is_local) |
6460 | continue; | |
6461 | ||
951fd09b AM |
6462 | /* LD -> LE */ |
6463 | tls_set = 0; | |
6464 | tls_clear = TLS_LD; | |
e7b938ca | 6465 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
6466 | expecting_tls_get_addr = 1; |
6467 | break; | |
6468 | ||
6469 | case R_PPC64_GOT_TLSGD16: | |
6470 | case R_PPC64_GOT_TLSGD16_LO: | |
6471 | case R_PPC64_GOT_TLSGD16_HI: | |
6472 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 6473 | if (ok_tprel) |
411e1bfb AM |
6474 | /* GD -> LE */ |
6475 | tls_set = 0; | |
6476 | else | |
6477 | /* GD -> IE */ | |
951fd09b AM |
6478 | tls_set = TLS_TLS | TLS_TPRELGD; |
6479 | tls_clear = TLS_GD; | |
e7b938ca | 6480 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
6481 | expecting_tls_get_addr = 1; |
6482 | break; | |
6483 | ||
6484 | case R_PPC64_GOT_TPREL16_DS: | |
6485 | case R_PPC64_GOT_TPREL16_LO_DS: | |
6486 | case R_PPC64_GOT_TPREL16_HI: | |
6487 | case R_PPC64_GOT_TPREL16_HA: | |
6488 | expecting_tls_get_addr = 0; | |
6489 | if (ok_tprel) | |
6490 | { | |
6491 | /* IE -> LE */ | |
6492 | tls_set = 0; | |
6493 | tls_clear = TLS_TPREL; | |
e7b938ca | 6494 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
6495 | break; |
6496 | } | |
6497 | else | |
6498 | continue; | |
6499 | ||
6500 | case R_PPC64_REL14: | |
6501 | case R_PPC64_REL14_BRTAKEN: | |
6502 | case R_PPC64_REL14_BRNTAKEN: | |
6503 | case R_PPC64_REL24: | |
6504 | if (h != NULL | |
8387904d AM |
6505 | && (h == &htab->tls_get_addr->elf |
6506 | || h == &htab->tls_get_addr_fd->elf)) | |
411e1bfb AM |
6507 | { |
6508 | if (!expecting_tls_get_addr | |
6509 | && rel != relstart | |
6510 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
6511 | == R_PPC64_TOC16) | |
6512 | || (ELF64_R_TYPE (rel[-1].r_info) | |
6513 | == R_PPC64_TOC16_LO))) | |
6514 | { | |
6515 | /* Check for toc tls entries. */ | |
6516 | char *toc_tls; | |
951fd09b | 6517 | int retval; |
411e1bfb | 6518 | |
0d4792f7 | 6519 | retval = get_tls_mask (&toc_tls, NULL, &locsyms, |
951fd09b AM |
6520 | rel - 1, ibfd); |
6521 | if (retval == 0) | |
411e1bfb AM |
6522 | goto err_free_rel; |
6523 | if (toc_tls != NULL) | |
951fd09b | 6524 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
6525 | } |
6526 | ||
6527 | if (expecting_tls_get_addr) | |
6528 | { | |
6529 | struct plt_entry *ent; | |
6530 | for (ent = h->plt.plist; ent; ent = ent->next) | |
6531 | if (ent->addend == 0) | |
6532 | { | |
6533 | if (ent->plt.refcount > 0) | |
6534 | ent->plt.refcount -= 1; | |
6535 | break; | |
6536 | } | |
6537 | } | |
6538 | } | |
6539 | expecting_tls_get_addr = 0; | |
6540 | continue; | |
6541 | ||
6542 | case R_PPC64_TPREL64: | |
6543 | expecting_tls_get_addr = 0; | |
6544 | if (ok_tprel) | |
6545 | { | |
6546 | /* IE -> LE */ | |
6547 | tls_set = TLS_EXPLICIT; | |
6548 | tls_clear = TLS_TPREL; | |
6549 | break; | |
6550 | } | |
6551 | else | |
6552 | continue; | |
6553 | ||
6554 | case R_PPC64_DTPMOD64: | |
6555 | expecting_tls_get_addr = 0; | |
951fd09b AM |
6556 | if (rel + 1 < relend |
6557 | && (rel[1].r_info | |
6558 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
6559 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 6560 | { |
951fd09b | 6561 | if (ok_tprel) |
411e1bfb | 6562 | /* GD -> LE */ |
951fd09b | 6563 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
6564 | else |
6565 | /* GD -> IE */ | |
951fd09b AM |
6566 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
6567 | tls_clear = TLS_GD; | |
411e1bfb AM |
6568 | } |
6569 | else | |
6570 | { | |
951fd09b AM |
6571 | if (!is_local) |
6572 | continue; | |
6573 | ||
6574 | /* LD -> LE */ | |
6575 | tls_set = TLS_EXPLICIT; | |
6576 | tls_clear = TLS_LD; | |
411e1bfb AM |
6577 | } |
6578 | break; | |
6579 | ||
6580 | default: | |
6581 | expecting_tls_get_addr = 0; | |
6582 | continue; | |
6583 | } | |
6584 | ||
6585 | if ((tls_set & TLS_EXPLICIT) == 0) | |
6586 | { | |
6587 | struct got_entry *ent; | |
6588 | ||
6589 | /* Adjust got entry for this reloc. */ | |
6590 | if (h != NULL) | |
6591 | ent = h->got.glist; | |
6592 | else | |
6593 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
6594 | ||
6595 | for (; ent != NULL; ent = ent->next) | |
6596 | if (ent->addend == rel->r_addend | |
e717da7e | 6597 | && ent->owner == ibfd |
e7b938ca | 6598 | && ent->tls_type == tls_type) |
411e1bfb AM |
6599 | break; |
6600 | if (ent == NULL) | |
6601 | abort (); | |
6602 | ||
6603 | if (tls_set == 0) | |
6604 | { | |
6605 | /* We managed to get rid of a got entry. */ | |
6606 | if (ent->got.refcount > 0) | |
6607 | ent->got.refcount -= 1; | |
6608 | } | |
411e1bfb AM |
6609 | } |
6610 | else if (h != NULL) | |
6611 | { | |
6612 | struct ppc_link_hash_entry * eh; | |
6613 | struct ppc_dyn_relocs **pp; | |
6614 | struct ppc_dyn_relocs *p; | |
6615 | ||
6616 | /* Adjust dynamic relocs. */ | |
6617 | eh = (struct ppc_link_hash_entry *) h; | |
6618 | for (pp = &eh->dyn_relocs; | |
6619 | (p = *pp) != NULL; | |
6620 | pp = &p->next) | |
6621 | if (p->sec == sec) | |
6622 | { | |
6623 | /* If we got rid of a DTPMOD/DTPREL reloc | |
6624 | pair then we'll lose one or two dyn | |
6625 | relocs. */ | |
951fd09b | 6626 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 6627 | p->count -= 1; |
951fd09b | 6628 | p->count -= 1; |
411e1bfb AM |
6629 | if (p->count == 0) |
6630 | *pp = p->next; | |
6631 | break; | |
6632 | } | |
6633 | } | |
6634 | ||
e7b938ca AM |
6635 | *tls_mask |= tls_set; |
6636 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
6637 | } |
6638 | ||
6639 | if (elf_section_data (sec)->relocs != relstart) | |
6640 | free (relstart); | |
6641 | } | |
6642 | ||
6643 | if (locsyms != NULL | |
6644 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
6645 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
6646 | { |
6647 | if (!info->keep_memory) | |
411e1bfb | 6648 | free (locsyms); |
6cdc0ccc | 6649 | else |
411e1bfb | 6650 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 6651 | } |
1e2f5b6e | 6652 | } |
b34976b6 | 6653 | return TRUE; |
1e2f5b6e | 6654 | } |
b34976b6 | 6655 | |
c5614fa4 AM |
6656 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
6657 | the values of any global symbols in a toc section that has been | |
6658 | edited. Globals in toc sections should be a rarity, so this function | |
6659 | sets a flag if any are found in toc sections other than the one just | |
6660 | edited, so that futher hash table traversals can be avoided. */ | |
6661 | ||
6662 | struct adjust_toc_info | |
6663 | { | |
6664 | asection *toc; | |
6665 | unsigned long *skip; | |
6666 | bfd_boolean global_toc_syms; | |
6667 | }; | |
6668 | ||
6669 | static bfd_boolean | |
6670 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
6671 | { | |
6672 | struct ppc_link_hash_entry *eh; | |
6673 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
6674 | ||
6675 | if (h->root.type == bfd_link_hash_indirect) | |
6676 | return TRUE; | |
6677 | ||
6678 | if (h->root.type == bfd_link_hash_warning) | |
6679 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
6680 | ||
6681 | if (h->root.type != bfd_link_hash_defined | |
6682 | && h->root.type != bfd_link_hash_defweak) | |
6683 | return TRUE; | |
6684 | ||
6685 | eh = (struct ppc_link_hash_entry *) h; | |
6686 | if (eh->adjust_done) | |
6687 | return TRUE; | |
6688 | ||
6689 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
6690 | { | |
6691 | unsigned long skip = toc_inf->skip[eh->elf.root.u.def.value >> 3]; | |
6692 | if (skip != (unsigned long) -1) | |
6693 | eh->elf.root.u.def.value -= skip; | |
6694 | else | |
6695 | { | |
6696 | (*_bfd_error_handler) | |
6697 | (_("%s defined in removed toc entry"), eh->elf.root.root.string); | |
6698 | eh->elf.root.u.def.section = &bfd_abs_section; | |
6699 | eh->elf.root.u.def.value = 0; | |
6700 | } | |
6701 | eh->adjust_done = 1; | |
6702 | } | |
6703 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
6704 | toc_inf->global_toc_syms = TRUE; | |
6705 | ||
6706 | return TRUE; | |
6707 | } | |
6708 | ||
6709 | /* Examine all relocs referencing .toc sections in order to remove | |
6710 | unused .toc entries. */ | |
6711 | ||
6712 | bfd_boolean | |
6713 | ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) | |
6714 | { | |
6715 | bfd *ibfd; | |
6716 | struct adjust_toc_info toc_inf; | |
6717 | ||
6718 | toc_inf.global_toc_syms = TRUE; | |
6719 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
6720 | { | |
6721 | asection *toc, *sec; | |
6722 | Elf_Internal_Shdr *symtab_hdr; | |
6723 | Elf_Internal_Sym *local_syms; | |
6724 | struct elf_link_hash_entry **sym_hashes; | |
6725 | Elf_Internal_Rela *relstart, *rel, *wrel; | |
6726 | unsigned long *skip, *drop; | |
6727 | unsigned char *used; | |
6728 | unsigned char *keep, last, some_unused; | |
6729 | ||
6730 | toc = bfd_get_section_by_name (ibfd, ".toc"); | |
6731 | if (toc == NULL | |
6732 | || toc->sec_info_type == ELF_INFO_TYPE_JUST_SYMS | |
6733 | || elf_discarded_section (toc)) | |
6734 | continue; | |
6735 | ||
6736 | local_syms = NULL; | |
6737 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
6738 | sym_hashes = elf_sym_hashes (ibfd); | |
6739 | ||
6740 | /* Look at sections dropped from the final link. */ | |
6741 | skip = NULL; | |
6742 | relstart = NULL; | |
6743 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
6744 | { | |
6745 | if (sec->reloc_count == 0 | |
6746 | || !elf_discarded_section (sec) | |
6747 | || get_opd_info (sec) | |
6748 | || (sec->flags & SEC_ALLOC) == 0 | |
6749 | || (sec->flags & SEC_DEBUGGING) != 0) | |
6750 | continue; | |
6751 | ||
6752 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
6753 | if (relstart == NULL) | |
6754 | goto error_ret; | |
6755 | ||
6756 | /* Run through the relocs to see which toc entries might be | |
6757 | unused. */ | |
6758 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
6759 | { | |
6760 | enum elf_ppc64_reloc_type r_type; | |
6761 | unsigned long r_symndx; | |
6762 | asection *sym_sec; | |
6763 | struct elf_link_hash_entry *h; | |
6764 | Elf_Internal_Sym *sym; | |
6765 | bfd_vma val; | |
6766 | ||
6767 | r_type = ELF64_R_TYPE (rel->r_info); | |
6768 | switch (r_type) | |
6769 | { | |
6770 | default: | |
6771 | continue; | |
6772 | ||
6773 | case R_PPC64_TOC16: | |
6774 | case R_PPC64_TOC16_LO: | |
6775 | case R_PPC64_TOC16_HI: | |
6776 | case R_PPC64_TOC16_HA: | |
6777 | case R_PPC64_TOC16_DS: | |
6778 | case R_PPC64_TOC16_LO_DS: | |
6779 | break; | |
6780 | } | |
6781 | ||
6782 | r_symndx = ELF64_R_SYM (rel->r_info); | |
6783 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
6784 | r_symndx, ibfd)) | |
6785 | goto error_ret; | |
6786 | ||
6787 | if (sym_sec != toc) | |
6788 | continue; | |
6789 | ||
6790 | if (h != NULL) | |
6791 | val = h->root.u.def.value; | |
6792 | else | |
6793 | val = sym->st_value; | |
6794 | val += rel->r_addend; | |
6795 | ||
6796 | if (val >= toc->size) | |
6797 | continue; | |
6798 | ||
6799 | /* Anything in the toc ought to be aligned to 8 bytes. | |
6800 | If not, don't mark as unused. */ | |
6801 | if (val & 7) | |
6802 | continue; | |
6803 | ||
6804 | if (skip == NULL) | |
6805 | { | |
6806 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 7) / 8); | |
6807 | if (skip == NULL) | |
6808 | goto error_ret; | |
6809 | } | |
6810 | ||
6811 | skip[val >> 3] = 1; | |
6812 | } | |
6813 | ||
6814 | if (elf_section_data (sec)->relocs != relstart) | |
6815 | free (relstart); | |
6816 | } | |
6817 | ||
6818 | if (skip == NULL) | |
6819 | continue; | |
6820 | ||
6821 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
6822 | if (used == NULL) | |
6823 | { | |
6824 | error_ret: | |
6825 | if (local_syms != NULL | |
6826 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6827 | free (local_syms); | |
6828 | if (sec != NULL | |
6829 | && relstart != NULL | |
6830 | && elf_section_data (sec)->relocs != relstart) | |
6831 | free (relstart); | |
6832 | if (skip != NULL) | |
6833 | free (skip); | |
6834 | return FALSE; | |
6835 | } | |
6836 | ||
6837 | /* Now check all kept sections that might reference the toc. */ | |
6838 | for (sec = ibfd->sections; | |
6839 | sec != NULL; | |
6840 | /* Check the toc itself last. */ | |
6841 | sec = (sec == toc ? NULL | |
6842 | : sec->next == toc && sec->next->next ? sec->next->next | |
6843 | : sec->next == NULL ? toc | |
6844 | : sec->next)) | |
6845 | { | |
6846 | int repeat; | |
6847 | ||
6848 | if (sec->reloc_count == 0 | |
6849 | || elf_discarded_section (sec) | |
6850 | || get_opd_info (sec) | |
6851 | || (sec->flags & SEC_ALLOC) == 0 | |
6852 | || (sec->flags & SEC_DEBUGGING) != 0) | |
6853 | continue; | |
6854 | ||
6855 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, TRUE); | |
6856 | if (relstart == NULL) | |
6857 | goto error_ret; | |
6858 | ||
6859 | /* Mark toc entries referenced as used. */ | |
6860 | repeat = 0; | |
6861 | do | |
6862 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
6863 | { | |
6864 | enum elf_ppc64_reloc_type r_type; | |
6865 | unsigned long r_symndx; | |
6866 | asection *sym_sec; | |
6867 | struct elf_link_hash_entry *h; | |
6868 | Elf_Internal_Sym *sym; | |
6869 | bfd_vma val; | |
6870 | ||
6871 | r_type = ELF64_R_TYPE (rel->r_info); | |
6872 | switch (r_type) | |
6873 | { | |
6874 | case R_PPC64_TOC16: | |
6875 | case R_PPC64_TOC16_LO: | |
6876 | case R_PPC64_TOC16_HI: | |
6877 | case R_PPC64_TOC16_HA: | |
6878 | case R_PPC64_TOC16_DS: | |
6879 | case R_PPC64_TOC16_LO_DS: | |
6880 | /* In case we're taking addresses of toc entries. */ | |
6881 | case R_PPC64_ADDR64: | |
6882 | break; | |
6883 | ||
6884 | default: | |
6885 | continue; | |
6886 | } | |
6887 | ||
6888 | r_symndx = ELF64_R_SYM (rel->r_info); | |
6889 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
6890 | r_symndx, ibfd)) | |
6891 | { | |
6892 | free (used); | |
6893 | goto error_ret; | |
6894 | } | |
6895 | ||
6896 | if (sym_sec != toc) | |
6897 | continue; | |
6898 | ||
6899 | if (h != NULL) | |
6900 | val = h->root.u.def.value; | |
6901 | else | |
6902 | val = sym->st_value; | |
6903 | val += rel->r_addend; | |
6904 | ||
6905 | if (val >= toc->size) | |
6906 | continue; | |
6907 | ||
6908 | /* For the toc section, we only mark as used if | |
6909 | this entry itself isn't unused. */ | |
6910 | if (sec == toc | |
6911 | && !used[val >> 3] | |
6912 | && (used[rel->r_offset >> 3] | |
6913 | || !skip[rel->r_offset >> 3])) | |
6914 | /* Do all the relocs again, to catch reference | |
6915 | chains. */ | |
6916 | repeat = 1; | |
6917 | ||
6918 | used[val >> 3] = 1; | |
6919 | } | |
6920 | while (repeat); | |
6921 | } | |
6922 | ||
6923 | /* Merge the used and skip arrays. Assume that TOC | |
6924 | doublewords not appearing as either used or unused belong | |
6925 | to to an entry more than one doubleword in size. */ | |
6926 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
6927 | drop < skip + (toc->size + 7) / 8; | |
6928 | ++drop, ++keep) | |
6929 | { | |
6930 | if (*keep) | |
6931 | { | |
6932 | *drop = 0; | |
6933 | last = 0; | |
6934 | } | |
6935 | else if (*drop) | |
6936 | { | |
6937 | some_unused = 1; | |
6938 | last = 1; | |
6939 | } | |
6940 | else | |
6941 | *drop = last; | |
6942 | } | |
6943 | ||
6944 | free (used); | |
6945 | ||
6946 | if (some_unused) | |
6947 | { | |
6948 | bfd_byte *contents, *src; | |
6949 | unsigned long off; | |
6950 | ||
6951 | /* Shuffle the toc contents, and at the same time convert the | |
6952 | skip array from booleans into offsets. */ | |
6953 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
6954 | goto error_ret; | |
6955 | ||
6956 | elf_section_data (toc)->this_hdr.contents = contents; | |
6957 | ||
6958 | for (src = contents, off = 0, drop = skip; | |
6959 | src < contents + toc->size; | |
6960 | src += 8, ++drop) | |
6961 | { | |
6962 | if (*drop) | |
6963 | { | |
6964 | *drop = (unsigned long) -1; | |
6965 | off += 8; | |
6966 | } | |
6967 | else if (off != 0) | |
6968 | { | |
6969 | *drop = off; | |
6970 | memcpy (src - off, src, 8); | |
6971 | } | |
6972 | } | |
6973 | toc->rawsize = toc->size; | |
6974 | toc->size = src - contents - off; | |
6975 | ||
6976 | /* Read toc relocs. */ | |
6977 | relstart = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, TRUE); | |
6978 | if (relstart == NULL) | |
6979 | goto error_ret; | |
6980 | ||
6981 | /* Remove unused toc relocs, and adjust those we keep. */ | |
6982 | wrel = relstart; | |
6983 | for (rel = relstart; rel < relstart + toc->reloc_count; ++rel) | |
6984 | if (skip[rel->r_offset >> 3] != (unsigned long) -1) | |
6985 | { | |
6986 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
6987 | wrel->r_info = rel->r_info; | |
6988 | wrel->r_addend = rel->r_addend; | |
6989 | ++wrel; | |
6990 | } | |
6991 | toc->reloc_count = wrel - relstart; | |
8860955f AM |
6992 | elf_section_data (toc)->rel_hdr.sh_size |
6993 | = toc->reloc_count * elf_section_data (toc)->rel_hdr.sh_entsize; | |
6994 | BFD_ASSERT (elf_section_data (toc)->rel_hdr2 == NULL); | |
c5614fa4 AM |
6995 | |
6996 | /* Adjust addends for relocs against the toc section sym. */ | |
6997 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
6998 | { | |
6999 | if (sec->reloc_count == 0 | |
7000 | || elf_discarded_section (sec)) | |
7001 | continue; | |
7002 | ||
7003 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
7004 | TRUE); | |
7005 | if (relstart == NULL) | |
7006 | goto error_ret; | |
7007 | ||
7008 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
7009 | { | |
7010 | enum elf_ppc64_reloc_type r_type; | |
7011 | unsigned long r_symndx; | |
7012 | asection *sym_sec; | |
7013 | struct elf_link_hash_entry *h; | |
7014 | Elf_Internal_Sym *sym; | |
7015 | ||
7016 | r_type = ELF64_R_TYPE (rel->r_info); | |
7017 | switch (r_type) | |
7018 | { | |
7019 | default: | |
7020 | continue; | |
7021 | ||
7022 | case R_PPC64_TOC16: | |
7023 | case R_PPC64_TOC16_LO: | |
7024 | case R_PPC64_TOC16_HI: | |
7025 | case R_PPC64_TOC16_HA: | |
7026 | case R_PPC64_TOC16_DS: | |
7027 | case R_PPC64_TOC16_LO_DS: | |
7028 | case R_PPC64_ADDR64: | |
7029 | break; | |
7030 | } | |
7031 | ||
7032 | r_symndx = ELF64_R_SYM (rel->r_info); | |
7033 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
7034 | r_symndx, ibfd)) | |
7035 | goto error_ret; | |
7036 | ||
7037 | if (sym_sec != toc || h != NULL || sym->st_value != 0) | |
7038 | continue; | |
7039 | ||
7040 | rel->r_addend -= skip[rel->r_addend >> 3]; | |
7041 | } | |
7042 | } | |
7043 | ||
7044 | /* We shouldn't have local or global symbols defined in the TOC, | |
7045 | but handle them anyway. */ | |
7046 | if (local_syms != NULL) | |
7047 | { | |
7048 | Elf_Internal_Sym *sym; | |
7049 | ||
7050 | for (sym = local_syms; | |
7051 | sym < local_syms + symtab_hdr->sh_info; | |
7052 | ++sym) | |
7053 | if (sym->st_shndx != SHN_UNDEF | |
7054 | && (sym->st_shndx < SHN_LORESERVE | |
7055 | || sym->st_shndx > SHN_HIRESERVE) | |
7056 | && sym->st_value != 0 | |
7057 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
7058 | { | |
7059 | if (skip[sym->st_value >> 3] != (unsigned long) -1) | |
7060 | sym->st_value -= skip[sym->st_value >> 3]; | |
7061 | else | |
7062 | { | |
7063 | (*_bfd_error_handler) | |
7064 | (_("%s defined in removed toc entry"), | |
be8dd2ca | 7065 | bfd_elf_sym_name (ibfd, symtab_hdr, sym)); |
c5614fa4 AM |
7066 | sym->st_value = 0; |
7067 | sym->st_shndx = SHN_ABS; | |
7068 | } | |
7069 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7070 | } | |
7071 | } | |
7072 | ||
7073 | /* Finally, adjust any global syms defined in the toc. */ | |
7074 | if (toc_inf.global_toc_syms) | |
7075 | { | |
7076 | toc_inf.toc = toc; | |
7077 | toc_inf.skip = skip; | |
7078 | toc_inf.global_toc_syms = FALSE; | |
7079 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
7080 | &toc_inf); | |
7081 | } | |
7082 | } | |
7083 | ||
7084 | if (local_syms != NULL | |
7085 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
7086 | { | |
7087 | if (!info->keep_memory) | |
7088 | free (local_syms); | |
7089 | else | |
7090 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7091 | } | |
7092 | free (skip); | |
7093 | } | |
7094 | ||
7095 | return TRUE; | |
7096 | } | |
7097 | ||
65f38f15 AM |
7098 | /* Allocate space in .plt, .got and associated reloc sections for |
7099 | dynamic relocs. */ | |
5bd4f169 | 7100 | |
b34976b6 | 7101 | static bfd_boolean |
4ce794b7 | 7102 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 7103 | { |
65f38f15 AM |
7104 | struct bfd_link_info *info; |
7105 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 7106 | asection *s; |
65f38f15 AM |
7107 | struct ppc_link_hash_entry *eh; |
7108 | struct ppc_dyn_relocs *p; | |
411e1bfb | 7109 | struct got_entry *gent; |
5bd4f169 | 7110 | |
e92d460e | 7111 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 7112 | return TRUE; |
5bd4f169 | 7113 | |
e92d460e AM |
7114 | if (h->root.type == bfd_link_hash_warning) |
7115 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7116 | ||
65f38f15 AM |
7117 | info = (struct bfd_link_info *) inf; |
7118 | htab = ppc_hash_table (info); | |
5bd4f169 | 7119 | |
65f38f15 | 7120 | if (htab->elf.dynamic_sections_created |
411e1bfb | 7121 | && h->dynindx != -1 |
9c7a29a3 | 7122 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 7123 | { |
411e1bfb AM |
7124 | struct plt_entry *pent; |
7125 | bfd_boolean doneone = FALSE; | |
7126 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
7127 | if (pent->plt.refcount > 0) | |
7128 | { | |
411e1bfb AM |
7129 | /* If this is the first .plt entry, make room for the special |
7130 | first entry. */ | |
4ce794b7 | 7131 | s = htab->plt; |
eea6121a AM |
7132 | if (s->size == 0) |
7133 | s->size += PLT_INITIAL_ENTRY_SIZE; | |
411e1bfb | 7134 | |
eea6121a | 7135 | pent->plt.offset = s->size; |
411e1bfb AM |
7136 | |
7137 | /* Make room for this entry. */ | |
eea6121a | 7138 | s->size += PLT_ENTRY_SIZE; |
411e1bfb AM |
7139 | |
7140 | /* Make room for the .glink code. */ | |
4ce794b7 | 7141 | s = htab->glink; |
eea6121a AM |
7142 | if (s->size == 0) |
7143 | s->size += GLINK_CALL_STUB_SIZE; | |
411e1bfb | 7144 | /* We need bigger stubs past index 32767. */ |
eea6121a AM |
7145 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) |
7146 | s->size += 4; | |
7147 | s->size += 2*4; | |
411e1bfb AM |
7148 | |
7149 | /* We also need to make an entry in the .rela.plt section. */ | |
4ce794b7 | 7150 | s = htab->relplt; |
eea6121a | 7151 | s->size += sizeof (Elf64_External_Rela); |
411e1bfb AM |
7152 | doneone = TRUE; |
7153 | } | |
7154 | else | |
7155 | pent->plt.offset = (bfd_vma) -1; | |
7156 | if (!doneone) | |
65f38f15 | 7157 | { |
411e1bfb | 7158 | h->plt.plist = NULL; |
f5385ebf | 7159 | h->needs_plt = 0; |
65f38f15 AM |
7160 | } |
7161 | } | |
7162 | else | |
7163 | { | |
411e1bfb | 7164 | h->plt.plist = NULL; |
f5385ebf | 7165 | h->needs_plt = 0; |
65f38f15 AM |
7166 | } |
7167 | ||
951fd09b AM |
7168 | eh = (struct ppc_link_hash_entry *) h; |
7169 | /* Run through the TLS GD got entries first if we're changing them | |
7170 | to TPREL. */ | |
e7b938ca | 7171 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
7172 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
7173 | if (gent->got.refcount > 0 | |
7174 | && (gent->tls_type & TLS_GD) != 0) | |
7175 | { | |
7176 | /* This was a GD entry that has been converted to TPREL. If | |
7177 | there happens to be a TPREL entry we can use that one. */ | |
7178 | struct got_entry *ent; | |
7179 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
7180 | if (ent->got.refcount > 0 | |
7181 | && (ent->tls_type & TLS_TPREL) != 0 | |
e717da7e AM |
7182 | && ent->addend == gent->addend |
7183 | && ent->owner == gent->owner) | |
951fd09b AM |
7184 | { |
7185 | gent->got.refcount = 0; | |
7186 | break; | |
7187 | } | |
7188 | ||
7189 | /* If not, then we'll be using our own TPREL entry. */ | |
7190 | if (gent->got.refcount != 0) | |
7191 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
7192 | } | |
7193 | ||
411e1bfb AM |
7194 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
7195 | if (gent->got.refcount > 0) | |
7196 | { | |
951fd09b AM |
7197 | bfd_boolean dyn; |
7198 | ||
411e1bfb | 7199 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
7200 | Undefined weak syms won't yet be marked as dynamic, |
7201 | nor will all TLS symbols. */ | |
411e1bfb | 7202 | if (h->dynindx == -1 |
f5385ebf | 7203 | && !h->forced_local) |
411e1bfb | 7204 | { |
c152c796 | 7205 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
411e1bfb AM |
7206 | return FALSE; |
7207 | } | |
65f38f15 | 7208 | |
d881513a | 7209 | if ((gent->tls_type & TLS_LD) != 0 |
f5385ebf | 7210 | && !h->def_dynamic) |
411e1bfb | 7211 | { |
e717da7e | 7212 | gent->got.offset = ppc64_tlsld_got (gent->owner)->offset; |
951fd09b | 7213 | continue; |
411e1bfb | 7214 | } |
951fd09b | 7215 | |
e717da7e | 7216 | s = ppc64_elf_tdata (gent->owner)->got; |
eea6121a AM |
7217 | gent->got.offset = s->size; |
7218 | s->size | |
d881513a | 7219 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; |
951fd09b | 7220 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
7221 | if ((info->shared |
7222 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
7223 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7224 | || h->root.type != bfd_link_hash_undefweak)) | |
eea6121a | 7225 | ppc64_elf_tdata (gent->owner)->relgot->size |
e7b938ca | 7226 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
7227 | ? 2 * sizeof (Elf64_External_Rela) |
7228 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
7229 | } |
7230 | else | |
7231 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 7232 | |
65f38f15 | 7233 | if (eh->dyn_relocs == NULL) |
b34976b6 | 7234 | return TRUE; |
65f38f15 AM |
7235 | |
7236 | /* In the shared -Bsymbolic case, discard space allocated for | |
7237 | dynamic pc-relative relocs against symbols which turn out to be | |
7238 | defined in regular objects. For the normal shared case, discard | |
7239 | space for relocs that have become local due to symbol visibility | |
7240 | changes. */ | |
7241 | ||
7242 | if (info->shared) | |
7243 | { | |
9c7a29a3 AM |
7244 | /* Relocs that use pc_count are those that appear on a call insn, |
7245 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
7246 | generated via assembly. We want calls to protected symbols to | |
7247 | resolve directly to the function rather than going via the plt. | |
7248 | If people want function pointer comparisons to work as expected | |
7249 | then they should avoid writing weird assembly. */ | |
09695f56 | 7250 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
7251 | { |
7252 | struct ppc_dyn_relocs **pp; | |
7253 | ||
7254 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 7255 | { |
65f38f15 AM |
7256 | p->count -= p->pc_count; |
7257 | p->pc_count = 0; | |
7258 | if (p->count == 0) | |
7259 | *pp = p->next; | |
7260 | else | |
7261 | pp = &p->next; | |
5bd4f169 | 7262 | } |
65f38f15 | 7263 | } |
4e795f50 AM |
7264 | |
7265 | /* Also discard relocs on undefined weak syms with non-default | |
7266 | visibility. */ | |
7267 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
7268 | && h->root.type == bfd_link_hash_undefweak) | |
7269 | eh->dyn_relocs = NULL; | |
65f38f15 | 7270 | } |
f4656909 | 7271 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
7272 | { |
7273 | /* For the non-shared case, discard space for relocs against | |
7274 | symbols which turn out to need copy relocs or are not | |
7275 | dynamic. */ | |
7276 | ||
f5385ebf AM |
7277 | if (!h->non_got_ref |
7278 | && h->def_dynamic | |
7279 | && !h->def_regular) | |
65f38f15 AM |
7280 | { |
7281 | /* Make sure this symbol is output as a dynamic symbol. | |
7282 | Undefined weak syms won't yet be marked as dynamic. */ | |
7283 | if (h->dynindx == -1 | |
f5385ebf | 7284 | && !h->forced_local) |
65f38f15 | 7285 | { |
c152c796 | 7286 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 7287 | return FALSE; |
65f38f15 AM |
7288 | } |
7289 | ||
7290 | /* If that succeeded, we know we'll be keeping all the | |
7291 | relocs. */ | |
7292 | if (h->dynindx != -1) | |
7293 | goto keep; | |
7294 | } | |
7295 | ||
7296 | eh->dyn_relocs = NULL; | |
7297 | ||
ec338859 | 7298 | keep: ; |
65f38f15 AM |
7299 | } |
7300 | ||
7301 | /* Finally, allocate space. */ | |
7302 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
7303 | { | |
7304 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 7305 | sreloc->size += p->count * sizeof (Elf64_External_Rela); |
65f38f15 AM |
7306 | } |
7307 | ||
b34976b6 | 7308 | return TRUE; |
65f38f15 AM |
7309 | } |
7310 | ||
7311 | /* Find any dynamic relocs that apply to read-only sections. */ | |
7312 | ||
b34976b6 | 7313 | static bfd_boolean |
4ce794b7 | 7314 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
65f38f15 AM |
7315 | { |
7316 | struct ppc_link_hash_entry *eh; | |
7317 | struct ppc_dyn_relocs *p; | |
7318 | ||
e92d460e AM |
7319 | if (h->root.type == bfd_link_hash_warning) |
7320 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7321 | ||
65f38f15 AM |
7322 | eh = (struct ppc_link_hash_entry *) h; |
7323 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
7324 | { | |
7325 | asection *s = p->sec->output_section; | |
7326 | ||
7327 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
7328 | { | |
4ce794b7 | 7329 | struct bfd_link_info *info = inf; |
65f38f15 AM |
7330 | |
7331 | info->flags |= DF_TEXTREL; | |
7332 | ||
7333 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 7334 | return FALSE; |
65f38f15 AM |
7335 | } |
7336 | } | |
b34976b6 | 7337 | return TRUE; |
65f38f15 AM |
7338 | } |
7339 | ||
7340 | /* Set the sizes of the dynamic sections. */ | |
7341 | ||
b34976b6 | 7342 | static bfd_boolean |
4ce794b7 AM |
7343 | ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
7344 | struct bfd_link_info *info) | |
65f38f15 AM |
7345 | { |
7346 | struct ppc_link_hash_table *htab; | |
7347 | bfd *dynobj; | |
7348 | asection *s; | |
b34976b6 | 7349 | bfd_boolean relocs; |
65f38f15 AM |
7350 | bfd *ibfd; |
7351 | ||
7352 | htab = ppc_hash_table (info); | |
7353 | dynobj = htab->elf.dynobj; | |
7354 | if (dynobj == NULL) | |
7355 | abort (); | |
7356 | ||
7357 | if (htab->elf.dynamic_sections_created) | |
7358 | { | |
7359 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 7360 | if (info->executable) |
65f38f15 AM |
7361 | { |
7362 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
7363 | if (s == NULL) | |
7364 | abort (); | |
eea6121a | 7365 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
65f38f15 AM |
7366 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
7367 | } | |
7368 | } | |
7369 | ||
7370 | /* Set up .got offsets for local syms, and space for local dynamic | |
7371 | relocs. */ | |
7372 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
7373 | { | |
411e1bfb AM |
7374 | struct got_entry **lgot_ents; |
7375 | struct got_entry **end_lgot_ents; | |
e7b938ca | 7376 | char *lgot_masks; |
65f38f15 AM |
7377 | bfd_size_type locsymcount; |
7378 | Elf_Internal_Shdr *symtab_hdr; | |
7379 | asection *srel; | |
7380 | ||
ee75fd95 | 7381 | if (!is_ppc64_elf_target (ibfd->xvec)) |
65f38f15 AM |
7382 | continue; |
7383 | ||
e717da7e AM |
7384 | if (ppc64_tlsld_got (ibfd)->refcount > 0) |
7385 | { | |
7386 | s = ppc64_elf_tdata (ibfd)->got; | |
eea6121a AM |
7387 | ppc64_tlsld_got (ibfd)->offset = s->size; |
7388 | s->size += 16; | |
e717da7e AM |
7389 | if (info->shared) |
7390 | { | |
7391 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
eea6121a | 7392 | srel->size += sizeof (Elf64_External_Rela); |
e717da7e AM |
7393 | } |
7394 | } | |
7395 | else | |
7396 | ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1; | |
7397 | ||
65f38f15 AM |
7398 | for (s = ibfd->sections; s != NULL; s = s->next) |
7399 | { | |
ec338859 | 7400 | struct ppc_dyn_relocs *p; |
65f38f15 | 7401 | |
ec338859 AM |
7402 | for (p = *((struct ppc_dyn_relocs **) |
7403 | &elf_section_data (s)->local_dynrel); | |
7404 | p != NULL; | |
7405 | p = p->next) | |
65f38f15 | 7406 | { |
ec338859 AM |
7407 | if (!bfd_is_abs_section (p->sec) |
7408 | && bfd_is_abs_section (p->sec->output_section)) | |
7409 | { | |
7410 | /* Input section has been discarded, either because | |
7411 | it is a copy of a linkonce section or due to | |
7412 | linker script /DISCARD/, so we'll be discarding | |
7413 | the relocs too. */ | |
7414 | } | |
248866a8 | 7415 | else if (p->count != 0) |
ec338859 AM |
7416 | { |
7417 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 7418 | srel->size += p->count * sizeof (Elf64_External_Rela); |
248866a8 AM |
7419 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
7420 | info->flags |= DF_TEXTREL; | |
ec338859 | 7421 | } |
65f38f15 AM |
7422 | } |
7423 | } | |
7424 | ||
411e1bfb AM |
7425 | lgot_ents = elf_local_got_ents (ibfd); |
7426 | if (!lgot_ents) | |
65f38f15 AM |
7427 | continue; |
7428 | ||
7429 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
7430 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 7431 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 7432 | lgot_masks = (char *) end_lgot_ents; |
e717da7e AM |
7433 | s = ppc64_elf_tdata (ibfd)->got; |
7434 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
e7b938ca | 7435 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 7436 | { |
411e1bfb AM |
7437 | struct got_entry *ent; |
7438 | ||
7439 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
7440 | if (ent->got.refcount > 0) | |
7441 | { | |
e7b938ca | 7442 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb | 7443 | { |
e717da7e | 7444 | if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1) |
411e1bfb | 7445 | { |
eea6121a AM |
7446 | ppc64_tlsld_got (ibfd)->offset = s->size; |
7447 | s->size += 16; | |
411e1bfb | 7448 | if (info->shared) |
eea6121a | 7449 | srel->size += sizeof (Elf64_External_Rela); |
411e1bfb | 7450 | } |
e717da7e | 7451 | ent->got.offset = ppc64_tlsld_got (ibfd)->offset; |
411e1bfb AM |
7452 | } |
7453 | else | |
7454 | { | |
eea6121a | 7455 | ent->got.offset = s->size; |
e7b938ca | 7456 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb | 7457 | { |
eea6121a | 7458 | s->size += 16; |
411e1bfb | 7459 | if (info->shared) |
eea6121a | 7460 | srel->size += 2 * sizeof (Elf64_External_Rela); |
411e1bfb AM |
7461 | } |
7462 | else | |
7463 | { | |
eea6121a | 7464 | s->size += 8; |
411e1bfb | 7465 | if (info->shared) |
eea6121a | 7466 | srel->size += sizeof (Elf64_External_Rela); |
411e1bfb AM |
7467 | } |
7468 | } | |
7469 | } | |
7470 | else | |
7471 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
7472 | } |
7473 | } | |
7474 | ||
7475 | /* Allocate global sym .plt and .got entries, and space for global | |
7476 | sym dynamic relocs. */ | |
4ce794b7 | 7477 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
65f38f15 AM |
7478 | |
7479 | /* We now have determined the sizes of the various dynamic sections. | |
7480 | Allocate memory for them. */ | |
b34976b6 | 7481 | relocs = FALSE; |
65f38f15 AM |
7482 | for (s = dynobj->sections; s != NULL; s = s->next) |
7483 | { | |
7484 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
7485 | continue; | |
7486 | ||
4ce794b7 | 7487 | if (s == htab->brlt || s == htab->relbrlt) |
721956f4 AM |
7488 | /* These haven't been allocated yet; don't strip. */ |
7489 | continue; | |
e717da7e AM |
7490 | else if (s == htab->got |
7491 | || s == htab->plt | |
4ce794b7 | 7492 | || s == htab->glink) |
65f38f15 AM |
7493 | { |
7494 | /* Strip this section if we don't need it; see the | |
7495 | comment below. */ | |
5bd4f169 | 7496 | } |
65f38f15 | 7497 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 | 7498 | { |
eea6121a | 7499 | if (s->size == 0) |
5bd4f169 AM |
7500 | { |
7501 | /* If we don't need this section, strip it from the | |
7502 | output file. This is mostly to handle .rela.bss and | |
7503 | .rela.plt. We must create both sections in | |
7504 | create_dynamic_sections, because they must be created | |
7505 | before the linker maps input sections to output | |
7506 | sections. The linker does that before | |
7507 | adjust_dynamic_symbol is called, and it is that | |
7508 | function which decides whether anything needs to go | |
7509 | into these sections. */ | |
5bd4f169 AM |
7510 | } |
7511 | else | |
7512 | { | |
4ce794b7 | 7513 | if (s != htab->relplt) |
b34976b6 | 7514 | relocs = TRUE; |
5bd4f169 AM |
7515 | |
7516 | /* We use the reloc_count field as a counter if we need | |
7517 | to copy relocs into the output file. */ | |
7518 | s->reloc_count = 0; | |
7519 | } | |
7520 | } | |
65f38f15 | 7521 | else |
5bd4f169 AM |
7522 | { |
7523 | /* It's not one of our sections, so don't allocate space. */ | |
7524 | continue; | |
7525 | } | |
7526 | ||
eea6121a | 7527 | if (s->size == 0) |
5bd4f169 AM |
7528 | { |
7529 | _bfd_strip_section_from_output (info, s); | |
7530 | continue; | |
7531 | } | |
7532 | ||
5f333394 | 7533 | /* .plt is in the bss section. We don't initialise it. */ |
680a3378 | 7534 | if (s == htab->plt) |
5f333394 AM |
7535 | continue; |
7536 | ||
65f38f15 AM |
7537 | /* Allocate memory for the section contents. We use bfd_zalloc |
7538 | here in case unused entries are not reclaimed before the | |
7539 | section's contents are written out. This should not happen, | |
411e1bfb AM |
7540 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
7541 | sections instead of garbage. | |
7542 | We also rely on the section contents being zero when writing | |
7543 | the GOT. */ | |
eea6121a | 7544 | s->contents = bfd_zalloc (dynobj, s->size); |
65f38f15 | 7545 | if (s->contents == NULL) |
b34976b6 | 7546 | return FALSE; |
5bd4f169 AM |
7547 | } |
7548 | ||
e717da7e AM |
7549 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
7550 | { | |
ee75fd95 | 7551 | if (!is_ppc64_elf_target (ibfd->xvec)) |
7b53ace3 AM |
7552 | continue; |
7553 | ||
e717da7e AM |
7554 | s = ppc64_elf_tdata (ibfd)->got; |
7555 | if (s != NULL && s != htab->got) | |
7556 | { | |
eea6121a | 7557 | if (s->size == 0) |
e717da7e AM |
7558 | _bfd_strip_section_from_output (info, s); |
7559 | else | |
7560 | { | |
eea6121a | 7561 | s->contents = bfd_zalloc (ibfd, s->size); |
e717da7e AM |
7562 | if (s->contents == NULL) |
7563 | return FALSE; | |
7564 | } | |
7565 | } | |
7566 | s = ppc64_elf_tdata (ibfd)->relgot; | |
7567 | if (s != NULL) | |
7568 | { | |
eea6121a | 7569 | if (s->size == 0) |
e717da7e AM |
7570 | _bfd_strip_section_from_output (info, s); |
7571 | else | |
7572 | { | |
eea6121a | 7573 | s->contents = bfd_zalloc (ibfd, s->size); |
e717da7e AM |
7574 | if (s->contents == NULL) |
7575 | return FALSE; | |
7576 | relocs = TRUE; | |
7577 | s->reloc_count = 0; | |
7578 | } | |
7579 | } | |
7580 | } | |
7581 | ||
e86ce104 | 7582 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
7583 | { |
7584 | /* Add some entries to the .dynamic section. We fill in the | |
7585 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
7586 | must add the entries now so that we get the correct size for | |
7587 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
7588 | dynamic linker and used by the debugger. */ | |
dc810e39 | 7589 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 7590 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 7591 | |
36af4a4e | 7592 | if (info->executable) |
5bd4f169 | 7593 | { |
dc810e39 | 7594 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 7595 | return FALSE; |
5bd4f169 AM |
7596 | } |
7597 | ||
eea6121a | 7598 | if (htab->plt != NULL && htab->plt->size != 0) |
5bd4f169 | 7599 | { |
dc810e39 AM |
7600 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
7601 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
7602 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
7603 | || !add_dynamic_entry (DT_JMPREL, 0) |
7604 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 7605 | return FALSE; |
5bd4f169 AM |
7606 | } |
7607 | ||
19397422 AM |
7608 | if (NO_OPD_RELOCS) |
7609 | { | |
7610 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
7611 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 7612 | return FALSE; |
19397422 AM |
7613 | } |
7614 | ||
5bd4f169 AM |
7615 | if (relocs) |
7616 | { | |
dc810e39 AM |
7617 | if (!add_dynamic_entry (DT_RELA, 0) |
7618 | || !add_dynamic_entry (DT_RELASZ, 0) | |
7619 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 7620 | return FALSE; |
5bd4f169 | 7621 | |
65f38f15 AM |
7622 | /* If any dynamic relocs apply to a read-only section, |
7623 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 7624 | if ((info->flags & DF_TEXTREL) == 0) |
4ce794b7 | 7625 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
5bd4f169 | 7626 | |
65f38f15 | 7627 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 7628 | { |
65f38f15 | 7629 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 7630 | return FALSE; |
5bd4f169 | 7631 | } |
5bd4f169 | 7632 | } |
5bd4f169 | 7633 | } |
65f38f15 | 7634 | #undef add_dynamic_entry |
5bd4f169 | 7635 | |
b34976b6 | 7636 | return TRUE; |
5bd4f169 AM |
7637 | } |
7638 | ||
721956f4 | 7639 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 7640 | |
4ce794b7 AM |
7641 | static inline enum ppc_stub_type |
7642 | ppc_type_of_stub (asection *input_sec, | |
7643 | const Elf_Internal_Rela *rel, | |
7644 | struct ppc_link_hash_entry **hash, | |
7645 | bfd_vma destination) | |
5bd4f169 | 7646 | { |
721956f4 AM |
7647 | struct ppc_link_hash_entry *h = *hash; |
7648 | bfd_vma location; | |
7649 | bfd_vma branch_offset; | |
7650 | bfd_vma max_branch_offset; | |
4ce794b7 | 7651 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 | 7652 | |
721956f4 AM |
7653 | if (h != NULL) |
7654 | { | |
7655 | if (h->oh != NULL | |
8387904d AM |
7656 | && h->oh->is_func_descriptor) |
7657 | h = h->oh; | |
7658 | ||
7659 | if (h->elf.dynindx != -1) | |
5bd4f169 | 7660 | { |
411e1bfb | 7661 | struct plt_entry *ent; |
8387904d AM |
7662 | |
7663 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) | |
411e1bfb AM |
7664 | if (ent->addend == rel->r_addend |
7665 | && ent->plt.offset != (bfd_vma) -1) | |
7666 | { | |
8387904d | 7667 | *hash = h; |
411e1bfb AM |
7668 | return ppc_stub_plt_call; |
7669 | } | |
5bd4f169 AM |
7670 | } |
7671 | ||
ee7de3e6 AM |
7672 | if (!(h->elf.root.type == bfd_link_hash_defined |
7673 | || h->elf.root.type == bfd_link_hash_defweak) | |
7674 | || h->elf.root.u.def.section->output_section == NULL) | |
721956f4 | 7675 | return ppc_stub_none; |
5d1634d7 | 7676 | } |
5d1634d7 | 7677 | |
721956f4 AM |
7678 | /* Determine where the call point is. */ |
7679 | location = (input_sec->output_offset | |
7680 | + input_sec->output_section->vma | |
7681 | + rel->r_offset); | |
5d1634d7 | 7682 | |
721956f4 AM |
7683 | branch_offset = destination - location; |
7684 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 7685 | |
721956f4 AM |
7686 | /* Determine if a long branch stub is needed. */ |
7687 | max_branch_offset = 1 << 25; | |
4ce794b7 | 7688 | if (r_type != R_PPC64_REL24) |
721956f4 | 7689 | max_branch_offset = 1 << 15; |
5d1634d7 | 7690 | |
721956f4 AM |
7691 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
7692 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
7693 | is needed later. */ | |
7694 | return ppc_stub_long_branch; | |
5d1634d7 | 7695 | |
721956f4 | 7696 | return ppc_stub_none; |
5d1634d7 AM |
7697 | } |
7698 | ||
7699 | /* Build a .plt call stub. */ | |
7700 | ||
4ce794b7 AM |
7701 | static inline bfd_byte * |
7702 | build_plt_stub (bfd *obfd, bfd_byte *p, int offset) | |
5d1634d7 AM |
7703 | { |
7704 | #define PPC_LO(v) ((v) & 0xffff) | |
7705 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7706 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7707 | ||
5d1634d7 | 7708 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 7709 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
7710 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
7711 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 7712 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
7713 | offset += 8; |
7714 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
7715 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 7716 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
7717 | offset += 8; |
7718 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
7719 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
7720 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
7721 | return p; | |
7722 | } | |
7723 | ||
b34976b6 | 7724 | static bfd_boolean |
4ce794b7 | 7725 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
5d1634d7 | 7726 | { |
721956f4 AM |
7727 | struct ppc_stub_hash_entry *stub_entry; |
7728 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
7729 | struct bfd_link_info *info; |
7730 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
7731 | bfd_byte *loc; |
7732 | bfd_byte *p; | |
7733 | unsigned int indx; | |
411e1bfb | 7734 | struct plt_entry *ent; |
ee75fd95 | 7735 | bfd_vma dest, off; |
721956f4 | 7736 | int size; |
5d1634d7 | 7737 | |
721956f4 AM |
7738 | /* Massage our args to the form they really have. */ |
7739 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 7740 | info = in_arg; |
5d1634d7 | 7741 | |
5d1634d7 AM |
7742 | htab = ppc_hash_table (info); |
7743 | ||
721956f4 | 7744 | /* Make a note of the offset within the stubs for this entry. */ |
eea6121a | 7745 | stub_entry->stub_offset = stub_entry->stub_sec->size; |
97b639ba | 7746 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; |
721956f4 | 7747 | |
4ce794b7 | 7748 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
721956f4 | 7749 | switch (stub_entry->stub_type) |
5d1634d7 | 7750 | { |
721956f4 | 7751 | case ppc_stub_long_branch: |
ad8e1ba5 | 7752 | case ppc_stub_long_branch_r2off: |
721956f4 | 7753 | /* Branches are relative. This is where we are going to. */ |
ee75fd95 AM |
7754 | off = dest = (stub_entry->target_value |
7755 | + stub_entry->target_section->output_offset | |
7756 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 7757 | |
721956f4 AM |
7758 | /* And this is where we are coming from. */ |
7759 | off -= (stub_entry->stub_offset | |
97b639ba AM |
7760 | + stub_entry->stub_sec->output_offset |
7761 | + stub_entry->stub_sec->output_section->vma); | |
e86ce104 | 7762 | |
ad8e1ba5 AM |
7763 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
7764 | size = 4; | |
7765 | else | |
7766 | { | |
7767 | bfd_vma r2off; | |
7768 | ||
7769 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
7770 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 7771 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 7772 | loc += 4; |
97b639ba | 7773 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 7774 | loc += 4; |
97b639ba | 7775 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
7776 | loc += 4; |
7777 | off -= 12; | |
7778 | size = 16; | |
7779 | } | |
97b639ba | 7780 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 AM |
7781 | |
7782 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); | |
ee75fd95 AM |
7783 | |
7784 | if (info->emitrelocations) | |
7785 | { | |
7786 | Elf_Internal_Rela *relocs, *r; | |
7787 | struct bfd_elf_section_data *elfsec_data; | |
7788 | ||
7789 | elfsec_data = elf_section_data (stub_entry->stub_sec); | |
7790 | relocs = elfsec_data->relocs; | |
7791 | if (relocs == NULL) | |
7792 | { | |
7793 | bfd_size_type relsize; | |
7794 | relsize = stub_entry->stub_sec->reloc_count * sizeof (*relocs); | |
7795 | relocs = bfd_alloc (htab->stub_bfd, relsize); | |
7796 | if (relocs == NULL) | |
7797 | return FALSE; | |
7798 | elfsec_data->relocs = relocs; | |
7799 | elfsec_data->rel_hdr.sh_size = relsize; | |
7800 | elfsec_data->rel_hdr.sh_entsize = 24; | |
7801 | stub_entry->stub_sec->reloc_count = 0; | |
7802 | } | |
7803 | r = relocs + stub_entry->stub_sec->reloc_count; | |
7804 | stub_entry->stub_sec->reloc_count += 1; | |
7805 | r->r_offset = loc - stub_entry->stub_sec->contents; | |
7806 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); | |
7807 | r->r_addend = dest; | |
7808 | if (stub_entry->h != NULL) | |
7809 | { | |
7810 | struct elf_link_hash_entry **hashes; | |
7811 | unsigned long symndx; | |
7812 | struct ppc_link_hash_entry *h; | |
7813 | ||
7814 | hashes = elf_sym_hashes (htab->stub_bfd); | |
7815 | if (hashes == NULL) | |
7816 | { | |
7817 | bfd_size_type hsize; | |
7818 | ||
7819 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
7820 | hashes = bfd_zalloc (htab->stub_bfd, hsize); | |
7821 | if (hashes == NULL) | |
7822 | return FALSE; | |
7823 | elf_sym_hashes (htab->stub_bfd) = hashes; | |
7824 | htab->stub_globals = 1; | |
7825 | } | |
7826 | symndx = htab->stub_globals++; | |
7827 | h = stub_entry->h; | |
7828 | hashes[symndx] = &h->elf; | |
7829 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
7830 | if (h->oh != NULL && h->oh->is_func) | |
7831 | h = h->oh; | |
7832 | if (h->elf.root.u.def.section != stub_entry->target_section) | |
7833 | /* H is an opd symbol. The addend must be zero. */ | |
7834 | r->r_addend = 0; | |
7835 | else | |
7836 | { | |
7837 | off = (h->elf.root.u.def.value | |
7838 | + h->elf.root.u.def.section->output_offset | |
7839 | + h->elf.root.u.def.section->output_section->vma); | |
7840 | r->r_addend -= off; | |
7841 | } | |
7842 | } | |
7843 | } | |
721956f4 | 7844 | break; |
e86ce104 | 7845 | |
721956f4 | 7846 | case ppc_stub_plt_branch: |
ad8e1ba5 | 7847 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
7848 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
7849 | stub_entry->root.string + 9, | |
b34976b6 | 7850 | FALSE, FALSE); |
721956f4 AM |
7851 | if (br_entry == NULL) |
7852 | { | |
7853 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
7854 | stub_entry->root.string + 9); | |
b34976b6 AM |
7855 | htab->stub_error = TRUE; |
7856 | return FALSE; | |
721956f4 AM |
7857 | } |
7858 | ||
7859 | off = (stub_entry->target_value | |
7860 | + stub_entry->target_section->output_offset | |
7861 | + stub_entry->target_section->output_section->vma); | |
7862 | ||
4ce794b7 AM |
7863 | bfd_put_64 (htab->brlt->owner, off, |
7864 | htab->brlt->contents + br_entry->offset); | |
721956f4 | 7865 | |
ee75fd95 | 7866 | if (htab->relbrlt != NULL) |
721956f4 AM |
7867 | { |
7868 | /* Create a reloc for the branch lookup table entry. */ | |
7869 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 7870 | bfd_byte *rl; |
5d1634d7 | 7871 | |
721956f4 | 7872 | rela.r_offset = (br_entry->offset |
4ce794b7 AM |
7873 | + htab->brlt->output_offset |
7874 | + htab->brlt->output_section->vma); | |
721956f4 AM |
7875 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
7876 | rela.r_addend = off; | |
7877 | ||
4ce794b7 AM |
7878 | rl = htab->relbrlt->contents; |
7879 | rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
7880 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
721956f4 AM |
7881 | } |
7882 | ||
7883 | off = (br_entry->offset | |
4ce794b7 AM |
7884 | + htab->brlt->output_offset |
7885 | + htab->brlt->output_section->vma | |
7886 | - elf_gp (htab->brlt->output_section->owner) | |
ad8e1ba5 | 7887 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 7888 | |
ad8e1ba5 | 7889 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
7890 | { |
7891 | (*_bfd_error_handler) | |
e86ce104 | 7892 | (_("linkage table error against `%s'"), |
721956f4 | 7893 | stub_entry->root.string); |
5d1634d7 | 7894 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
7895 | htab->stub_error = TRUE; |
7896 | return FALSE; | |
5d1634d7 | 7897 | } |
41bd81ab | 7898 | |
721956f4 | 7899 | indx = off; |
ad8e1ba5 AM |
7900 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
7901 | { | |
97b639ba | 7902 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 7903 | loc += 4; |
97b639ba | 7904 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 AM |
7905 | size = 16; |
7906 | } | |
7907 | else | |
7908 | { | |
7909 | bfd_vma r2off; | |
7910 | ||
7911 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
7912 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 7913 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 7914 | loc += 4; |
97b639ba | 7915 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 7916 | loc += 4; |
97b639ba | 7917 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 | 7918 | loc += 4; |
97b639ba | 7919 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 7920 | loc += 4; |
97b639ba | 7921 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
7922 | size = 28; |
7923 | } | |
7924 | loc += 4; | |
97b639ba | 7925 | bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc); |
ad8e1ba5 | 7926 | loc += 4; |
97b639ba | 7927 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
721956f4 | 7928 | break; |
5d1634d7 | 7929 | |
721956f4 | 7930 | case ppc_stub_plt_call: |
c862ae31 AM |
7931 | /* Do the best we can for shared libraries built without |
7932 | exporting ".foo" for each "foo". This can happen when symbol | |
7933 | versioning scripts strip all bar a subset of symbols. */ | |
8387904d AM |
7934 | if (stub_entry->h->oh != NULL |
7935 | && stub_entry->h->oh->elf.root.type != bfd_link_hash_defined | |
34814b9f | 7936 | && stub_entry->h->oh->elf.root.type != bfd_link_hash_defweak) |
c862ae31 AM |
7937 | { |
7938 | /* Point the symbol at the stub. There may be multiple stubs, | |
7939 | we don't really care; The main thing is to make this sym | |
8f3bab57 AM |
7940 | defined somewhere. Maybe defining the symbol in the stub |
7941 | section is a silly idea. If we didn't do this, htab->top_id | |
7942 | could disappear. */ | |
34814b9f AM |
7943 | stub_entry->h->oh->elf.root.type = bfd_link_hash_defined; |
7944 | stub_entry->h->oh->elf.root.u.def.section = stub_entry->stub_sec; | |
7945 | stub_entry->h->oh->elf.root.u.def.value = stub_entry->stub_offset; | |
c862ae31 AM |
7946 | } |
7947 | ||
721956f4 | 7948 | /* Now build the stub. */ |
411e1bfb AM |
7949 | off = (bfd_vma) -1; |
7950 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
7951 | if (ent->addend == stub_entry->addend) | |
7952 | { | |
7953 | off = ent->plt.offset; | |
7954 | break; | |
7955 | } | |
721956f4 AM |
7956 | if (off >= (bfd_vma) -2) |
7957 | abort (); | |
7958 | ||
7959 | off &= ~ (bfd_vma) 1; | |
4ce794b7 AM |
7960 | off += (htab->plt->output_offset |
7961 | + htab->plt->output_section->vma | |
7962 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 7963 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 7964 | |
ad8e1ba5 | 7965 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
7966 | { |
7967 | (*_bfd_error_handler) | |
7968 | (_("linkage table error against `%s'"), | |
7969 | stub_entry->h->elf.root.root.string); | |
7970 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
7971 | htab->stub_error = TRUE; |
7972 | return FALSE; | |
721956f4 AM |
7973 | } |
7974 | ||
97b639ba | 7975 | p = build_plt_stub (htab->stub_bfd, loc, off); |
721956f4 AM |
7976 | size = p - loc; |
7977 | break; | |
7978 | ||
7979 | default: | |
7980 | BFD_FAIL (); | |
b34976b6 | 7981 | return FALSE; |
721956f4 AM |
7982 | } |
7983 | ||
eea6121a | 7984 | stub_entry->stub_sec->size += size; |
97b639ba | 7985 | |
ee75fd95 | 7986 | if (htab->emit_stub_syms) |
97b639ba AM |
7987 | { |
7988 | struct elf_link_hash_entry *h; | |
ee75fd95 AM |
7989 | size_t len1, len2; |
7990 | char *name; | |
7991 | const char *const stub_str[] = { "long_branch", | |
7992 | "long_branch_r2off", | |
7993 | "plt_branch", | |
7994 | "plt_branch_r2off", | |
7995 | "plt_call" }; | |
7996 | ||
7997 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
7998 | len2 = strlen (stub_entry->root.string); | |
7999 | name = bfd_malloc (len1 + len2 + 2); | |
8000 | if (name == NULL) | |
8001 | return FALSE; | |
8002 | memcpy (name, stub_entry->root.string, 9); | |
8003 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
8004 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
8005 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
97b639ba AM |
8006 | if (h == NULL) |
8007 | return FALSE; | |
8008 | if (h->root.type == bfd_link_hash_new) | |
8009 | { | |
8010 | h->root.type = bfd_link_hash_defined; | |
8011 | h->root.u.def.section = stub_entry->stub_sec; | |
8012 | h->root.u.def.value = stub_entry->stub_offset; | |
f5385ebf AM |
8013 | h->ref_regular = 1; |
8014 | h->def_regular = 1; | |
8015 | h->ref_regular_nonweak = 1; | |
8016 | h->forced_local = 1; | |
8017 | h->non_elf = 0; | |
97b639ba AM |
8018 | } |
8019 | } | |
8020 | ||
b34976b6 | 8021 | return TRUE; |
721956f4 AM |
8022 | } |
8023 | ||
8024 | /* As above, but don't actually build the stub. Just bump offset so | |
8025 | we know stub section sizes, and select plt_branch stubs where | |
8026 | long_branch stubs won't do. */ | |
8027 | ||
b34976b6 | 8028 | static bfd_boolean |
4ce794b7 | 8029 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
721956f4 AM |
8030 | { |
8031 | struct ppc_stub_hash_entry *stub_entry; | |
63bc6f6c | 8032 | struct bfd_link_info *info; |
721956f4 AM |
8033 | struct ppc_link_hash_table *htab; |
8034 | bfd_vma off; | |
8035 | int size; | |
8036 | ||
8037 | /* Massage our args to the form they really have. */ | |
8038 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
63bc6f6c AM |
8039 | info = in_arg; |
8040 | ||
8041 | htab = ppc_hash_table (info); | |
721956f4 AM |
8042 | |
8043 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
8044 | { | |
411e1bfb | 8045 | struct plt_entry *ent; |
58ac9f71 | 8046 | off = (bfd_vma) -1; |
411e1bfb AM |
8047 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
8048 | if (ent->addend == stub_entry->addend) | |
8049 | { | |
8050 | off = ent->plt.offset & ~(bfd_vma) 1; | |
8051 | break; | |
8052 | } | |
58ac9f71 | 8053 | if (off >= (bfd_vma) -2) |
411e1bfb | 8054 | abort (); |
4ce794b7 AM |
8055 | off += (htab->plt->output_offset |
8056 | + htab->plt->output_section->vma | |
8057 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 8058 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 8059 | |
ad8e1ba5 | 8060 | size = PLT_CALL_STUB_SIZE; |
4ce794b7 | 8061 | if (PPC_HA (off + 16) != PPC_HA (off)) |
721956f4 AM |
8062 | size += 4; |
8063 | } | |
8064 | else | |
8065 | { | |
ad8e1ba5 AM |
8066 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
8067 | variants. */ | |
721956f4 AM |
8068 | off = (stub_entry->target_value |
8069 | + stub_entry->target_section->output_offset | |
8070 | + stub_entry->target_section->output_section->vma); | |
eea6121a | 8071 | off -= (stub_entry->stub_sec->size |
721956f4 AM |
8072 | + stub_entry->stub_sec->output_offset |
8073 | + stub_entry->stub_sec->output_section->vma); | |
8074 | ||
ad8e1ba5 AM |
8075 | /* Reset the stub type from the plt variant in case we now |
8076 | can reach with a shorter stub. */ | |
8077 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
8078 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
8079 | ||
8080 | size = 4; | |
8081 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
8082 | { | |
8083 | off -= 12; | |
8084 | size = 16; | |
8085 | } | |
8086 | ||
8087 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
8088 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
8089 | { | |
8090 | struct ppc_branch_hash_entry *br_entry; | |
8091 | ||
8092 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
8093 | stub_entry->root.string + 9, | |
b34976b6 | 8094 | TRUE, FALSE); |
721956f4 AM |
8095 | if (br_entry == NULL) |
8096 | { | |
8097 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
8098 | stub_entry->root.string + 9); | |
b34976b6 AM |
8099 | htab->stub_error = TRUE; |
8100 | return FALSE; | |
721956f4 AM |
8101 | } |
8102 | ||
8103 | if (br_entry->iter != htab->stub_iteration) | |
8104 | { | |
8105 | br_entry->iter = htab->stub_iteration; | |
eea6121a AM |
8106 | br_entry->offset = htab->brlt->size; |
8107 | htab->brlt->size += 8; | |
63bc6f6c | 8108 | |
ee75fd95 | 8109 | if (htab->relbrlt != NULL) |
eea6121a | 8110 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
721956f4 | 8111 | } |
ad8e1ba5 AM |
8112 | |
8113 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 8114 | size = 16; |
ad8e1ba5 AM |
8115 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
8116 | size = 28; | |
721956f4 | 8117 | } |
ee75fd95 AM |
8118 | |
8119 | if (info->emitrelocations | |
8120 | && (stub_entry->stub_type == ppc_stub_long_branch | |
8121 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
8122 | stub_entry->stub_sec->reloc_count += 1; | |
721956f4 AM |
8123 | } |
8124 | ||
eea6121a | 8125 | stub_entry->stub_sec->size += size; |
b34976b6 | 8126 | return TRUE; |
721956f4 AM |
8127 | } |
8128 | ||
8129 | /* Set up various things so that we can make a list of input sections | |
8130 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 8131 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
8132 | |
8133 | int | |
4ce794b7 | 8134 | ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
721956f4 AM |
8135 | { |
8136 | bfd *input_bfd; | |
734b6cf9 | 8137 | int top_id, top_index, id; |
721956f4 | 8138 | asection *section; |
734b6cf9 | 8139 | asection **input_list; |
721956f4 AM |
8140 | bfd_size_type amt; |
8141 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
8142 | ||
4ce794b7 | 8143 | if (htab->brlt == NULL) |
721956f4 AM |
8144 | return 0; |
8145 | ||
1e2f5b6e | 8146 | /* Find the top input section id. */ |
3d6f9012 | 8147 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
8148 | input_bfd != NULL; |
8149 | input_bfd = input_bfd->link_next) | |
8150 | { | |
721956f4 AM |
8151 | for (section = input_bfd->sections; |
8152 | section != NULL; | |
8153 | section = section->next) | |
8154 | { | |
8155 | if (top_id < section->id) | |
8156 | top_id = section->id; | |
8157 | } | |
8158 | } | |
721956f4 | 8159 | |
8f3bab57 | 8160 | htab->top_id = top_id; |
721956f4 | 8161 | amt = sizeof (struct map_stub) * (top_id + 1); |
4ce794b7 | 8162 | htab->stub_group = bfd_zmalloc (amt); |
721956f4 AM |
8163 | if (htab->stub_group == NULL) |
8164 | return -1; | |
8165 | ||
3d6f9012 AM |
8166 | /* Set toc_off for com, und, abs and ind sections. */ |
8167 | for (id = 0; id < 3; id++) | |
8168 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 8169 | |
3d6f9012 | 8170 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
8171 | |
8172 | /* We can't use output_bfd->section_count here to find the top output | |
8173 | section index as some sections may have been removed, and | |
8174 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
8175 | for (section = output_bfd->sections, top_index = 0; | |
8176 | section != NULL; | |
8177 | section = section->next) | |
8178 | { | |
8179 | if (top_index < section->index) | |
8180 | top_index = section->index; | |
8181 | } | |
8182 | ||
8183 | htab->top_index = top_index; | |
8184 | amt = sizeof (asection *) * (top_index + 1); | |
4ce794b7 | 8185 | input_list = bfd_zmalloc (amt); |
734b6cf9 AM |
8186 | htab->input_list = input_list; |
8187 | if (input_list == NULL) | |
8188 | return -1; | |
8189 | ||
721956f4 AM |
8190 | return 1; |
8191 | } | |
8192 | ||
e717da7e AM |
8193 | /* The linker repeatedly calls this function for each TOC input section |
8194 | and linker generated GOT section. Group input bfds such that the toc | |
8195 | within a group is less than 64k in size. Will break with cute linker | |
8196 | scripts that play games with dot in the output toc section. */ | |
ad8e1ba5 AM |
8197 | |
8198 | void | |
4ce794b7 | 8199 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
ad8e1ba5 AM |
8200 | { |
8201 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
99877b66 AM |
8202 | bfd_vma addr = isec->output_offset + isec->output_section->vma; |
8203 | bfd_vma off = addr - htab->toc_curr; | |
ad8e1ba5 | 8204 | |
99877b66 AM |
8205 | if (off + isec->size > 0x10000) |
8206 | htab->toc_curr = addr; | |
8207 | ||
8208 | elf_gp (isec->owner) = (htab->toc_curr | |
8209 | - elf_gp (isec->output_section->owner) | |
8210 | + TOC_BASE_OFF); | |
ad8e1ba5 AM |
8211 | } |
8212 | ||
8213 | /* Called after the last call to the above function. */ | |
8214 | ||
8215 | void | |
4ce794b7 AM |
8216 | ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED, |
8217 | struct bfd_link_info *info) | |
ad8e1ba5 AM |
8218 | { |
8219 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 AM |
8220 | |
8221 | /* toc_curr tracks the TOC offset used for code sections below in | |
8222 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 8223 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
8224 | } |
8225 | ||
9b5ecbd0 AM |
8226 | /* No toc references were found in ISEC. If the code in ISEC makes no |
8227 | calls, then there's no need to use toc adjusting stubs when branching | |
8228 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
8229 | load r2. */ | |
8230 | ||
8231 | static int | |
4ce794b7 | 8232 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
9b5ecbd0 AM |
8233 | { |
8234 | bfd_byte *contents; | |
8235 | bfd_size_type i; | |
8236 | int ret; | |
8237 | int branch_ok; | |
8238 | ||
772119ce AM |
8239 | /* We know none of our code bearing sections will need toc stubs. */ |
8240 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
8241 | return 0; | |
8242 | ||
eea6121a | 8243 | if (isec->size == 0) |
082c50f8 AM |
8244 | return 0; |
8245 | ||
9b5ecbd0 AM |
8246 | /* Hack for linux kernel. .fixup contains branches, but only back to |
8247 | the function that hit an exception. */ | |
8248 | branch_ok = strcmp (isec->name, ".fixup") == 0; | |
8249 | ||
8250 | contents = elf_section_data (isec)->this_hdr.contents; | |
8251 | if (contents == NULL) | |
8252 | { | |
eea6121a | 8253 | if (!bfd_malloc_and_get_section (isec->owner, isec, &contents)) |
9b5ecbd0 | 8254 | { |
eea6121a AM |
8255 | if (contents != NULL) |
8256 | free (contents); | |
9b5ecbd0 AM |
8257 | return -1; |
8258 | } | |
8259 | if (info->keep_memory) | |
8260 | elf_section_data (isec)->this_hdr.contents = contents; | |
8261 | } | |
8262 | ||
8263 | /* Code scan, because we don't necessarily have relocs on calls to | |
8264 | static functions. */ | |
8265 | ret = 0; | |
eea6121a | 8266 | for (i = 0; i < isec->size; i += 4) |
9b5ecbd0 AM |
8267 | { |
8268 | unsigned long insn = bfd_get_32 (isec->owner, contents + i); | |
8269 | /* Is this a branch? */ | |
772119ce | 8270 | if ((insn & (0x3f << 26)) == (18 << 26) |
9b5ecbd0 AM |
8271 | /* If branch and link, it's a function call. */ |
8272 | && ((insn & 1) != 0 | |
8273 | /* Sibling calls use a plain branch. I don't know a way | |
8274 | of deciding whether a branch is really a sibling call. */ | |
8275 | || !branch_ok)) | |
8276 | { | |
8277 | ret = 1; | |
8278 | break; | |
8279 | } | |
8280 | } | |
8281 | ||
8282 | if (elf_section_data (isec)->this_hdr.contents != contents) | |
8283 | free (contents); | |
8284 | return ret; | |
8285 | } | |
8286 | ||
721956f4 AM |
8287 | /* The linker repeatedly calls this function for each input section, |
8288 | in the order that input sections are linked into output sections. | |
8289 | Build lists of input sections to determine groupings between which | |
8290 | we may insert linker stubs. */ | |
8291 | ||
9b5ecbd0 | 8292 | bfd_boolean |
4ce794b7 | 8293 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
721956f4 AM |
8294 | { |
8295 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9b5ecbd0 | 8296 | int ret; |
721956f4 | 8297 | |
734b6cf9 AM |
8298 | if ((isec->output_section->flags & SEC_CODE) != 0 |
8299 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 8300 | { |
734b6cf9 | 8301 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 8302 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 8303 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
8304 | /* This happens to make the list in reverse order, |
8305 | which is what we want. */ | |
734b6cf9 AM |
8306 | PREV_SEC (isec) = *list; |
8307 | *list = isec; | |
721956f4 | 8308 | } |
ad8e1ba5 AM |
8309 | |
8310 | /* If a code section has a function that uses the TOC then we need | |
8311 | to use the right TOC (obviously). Also, make sure that .opd gets | |
ee87f2da AM |
8312 | the correct TOC value for R_PPC64_TOC relocs that don't have or |
8313 | can't find their function symbol (shouldn't ever happen now). */ | |
ad8e1ba5 | 8314 | if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0) |
9b5ecbd0 AM |
8315 | { |
8316 | if (elf_gp (isec->owner) != 0) | |
8317 | htab->toc_curr = elf_gp (isec->owner); | |
8318 | } | |
8319 | else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0) | |
8320 | return FALSE; | |
8321 | else | |
8322 | isec->has_gp_reloc = ret; | |
ad8e1ba5 AM |
8323 | |
8324 | /* Functions that don't use the TOC can belong in any TOC group. | |
8325 | Use the last TOC base. This happens to make _init and _fini | |
8326 | pasting work. */ | |
8327 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 8328 | return TRUE; |
721956f4 AM |
8329 | } |
8330 | ||
8331 | /* See whether we can group stub sections together. Grouping stub | |
8332 | sections may result in fewer stubs. More importantly, we need to | |
8333 | put all .init* and .fini* stubs at the beginning of the .init or | |
8334 | .fini output sections respectively, because glibc splits the | |
8335 | _init and _fini functions into multiple parts. Putting a stub in | |
8336 | the middle of a function is not a good idea. */ | |
8337 | ||
8338 | static void | |
4ce794b7 AM |
8339 | group_sections (struct ppc_link_hash_table *htab, |
8340 | bfd_size_type stub_group_size, | |
8341 | bfd_boolean stubs_always_before_branch) | |
721956f4 | 8342 | { |
734b6cf9 AM |
8343 | asection **list = htab->input_list + htab->top_index; |
8344 | do | |
721956f4 | 8345 | { |
734b6cf9 AM |
8346 | asection *tail = *list; |
8347 | while (tail != NULL) | |
721956f4 | 8348 | { |
734b6cf9 AM |
8349 | asection *curr; |
8350 | asection *prev; | |
8351 | bfd_size_type total; | |
8352 | bfd_boolean big_sec; | |
8353 | bfd_vma curr_toc; | |
8354 | ||
8355 | curr = tail; | |
eea6121a | 8356 | total = tail->size; |
734b6cf9 AM |
8357 | big_sec = total >= stub_group_size; |
8358 | curr_toc = htab->stub_group[tail->id].toc_off; | |
8359 | ||
8360 | while ((prev = PREV_SEC (curr)) != NULL | |
8361 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
8362 | < stub_group_size) |
8363 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
8364 | curr = prev; |
8365 | ||
8366 | /* OK, the size from the start of CURR to the end is less | |
8367 | than stub_group_size and thus can be handled by one stub | |
8368 | section. (or the tail section is itself larger than | |
8369 | stub_group_size, in which case we may be toast.) We | |
8370 | should really be keeping track of the total size of stubs | |
8371 | added here, as stubs contribute to the final output | |
8372 | section size. That's a little tricky, and this way will | |
8373 | only break if stubs added make the total size more than | |
8374 | 2^25, ie. for the default stub_group_size, if stubs total | |
8375 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
8376 | do | |
721956f4 AM |
8377 | { |
8378 | prev = PREV_SEC (tail); | |
734b6cf9 | 8379 | /* Set up this stub group. */ |
721956f4 AM |
8380 | htab->stub_group[tail->id].link_sec = curr; |
8381 | } | |
734b6cf9 AM |
8382 | while (tail != curr && (tail = prev) != NULL); |
8383 | ||
8384 | /* But wait, there's more! Input sections up to stub_group_size | |
8385 | bytes before the stub section can be handled by it too. | |
8386 | Don't do this if we have a really large section after the | |
8387 | stubs, as adding more stubs increases the chance that | |
8388 | branches may not reach into the stub section. */ | |
8389 | if (!stubs_always_before_branch && !big_sec) | |
8390 | { | |
8391 | total = 0; | |
8392 | while (prev != NULL | |
8393 | && ((total += tail->output_offset - prev->output_offset) | |
8394 | < stub_group_size) | |
8395 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
8396 | { | |
8397 | tail = prev; | |
8398 | prev = PREV_SEC (tail); | |
8399 | htab->stub_group[tail->id].link_sec = curr; | |
8400 | } | |
8401 | } | |
8402 | tail = prev; | |
721956f4 AM |
8403 | } |
8404 | } | |
734b6cf9 AM |
8405 | while (list-- != htab->input_list); |
8406 | free (htab->input_list); | |
721956f4 AM |
8407 | #undef PREV_SEC |
8408 | } | |
8409 | ||
721956f4 AM |
8410 | /* Determine and set the size of the stub section for a final link. |
8411 | ||
8412 | The basic idea here is to examine all the relocations looking for | |
8413 | PC-relative calls to a target that is unreachable with a "bl" | |
8414 | instruction. */ | |
8415 | ||
b34976b6 | 8416 | bfd_boolean |
4ce794b7 | 8417 | ppc64_elf_size_stubs (bfd *output_bfd, |
4ce794b7 AM |
8418 | struct bfd_link_info *info, |
8419 | bfd_signed_vma group_size, | |
8420 | asection *(*add_stub_section) (const char *, asection *), | |
8421 | void (*layout_sections_again) (void)) | |
721956f4 AM |
8422 | { |
8423 | bfd_size_type stub_group_size; | |
b34976b6 | 8424 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
8425 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
8426 | ||
8427 | /* Stash our params away. */ | |
721956f4 AM |
8428 | htab->add_stub_section = add_stub_section; |
8429 | htab->layout_sections_again = layout_sections_again; | |
8430 | stubs_always_before_branch = group_size < 0; | |
8431 | if (group_size < 0) | |
8432 | stub_group_size = -group_size; | |
8433 | else | |
8434 | stub_group_size = group_size; | |
8435 | if (stub_group_size == 1) | |
8436 | { | |
8437 | /* Default values. */ | |
58ac9f71 AM |
8438 | if (stubs_always_before_branch) |
8439 | { | |
8440 | stub_group_size = 0x1e00000; | |
8441 | if (htab->has_14bit_branch) | |
8442 | stub_group_size = 0x7800; | |
8443 | } | |
8444 | else | |
8445 | { | |
8446 | stub_group_size = 0x1c00000; | |
8447 | if (htab->has_14bit_branch) | |
8448 | stub_group_size = 0x7000; | |
8449 | } | |
721956f4 AM |
8450 | } |
8451 | ||
8452 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
8453 | ||
721956f4 AM |
8454 | while (1) |
8455 | { | |
8456 | bfd *input_bfd; | |
8457 | unsigned int bfd_indx; | |
8458 | asection *stub_sec; | |
b34976b6 | 8459 | bfd_boolean stub_changed; |
721956f4 AM |
8460 | |
8461 | htab->stub_iteration += 1; | |
b34976b6 | 8462 | stub_changed = FALSE; |
721956f4 AM |
8463 | |
8464 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
8465 | input_bfd != NULL; | |
8466 | input_bfd = input_bfd->link_next, bfd_indx++) | |
8467 | { | |
8468 | Elf_Internal_Shdr *symtab_hdr; | |
8469 | asection *section; | |
6cdc0ccc | 8470 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
8471 | |
8472 | /* We'll need the symbol table in a second. */ | |
8473 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
8474 | if (symtab_hdr->sh_info == 0) | |
8475 | continue; | |
8476 | ||
721956f4 AM |
8477 | /* Walk over each section attached to the input bfd. */ |
8478 | for (section = input_bfd->sections; | |
8479 | section != NULL; | |
8480 | section = section->next) | |
8481 | { | |
721956f4 | 8482 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
8483 | |
8484 | /* If there aren't any relocs, then there's nothing more | |
8485 | to do. */ | |
8486 | if ((section->flags & SEC_RELOC) == 0 | |
8487 | || section->reloc_count == 0) | |
8488 | continue; | |
8489 | ||
8490 | /* If this section is a link-once section that will be | |
8491 | discarded, then don't create any stubs. */ | |
8492 | if (section->output_section == NULL | |
8493 | || section->output_section->owner != output_bfd) | |
8494 | continue; | |
8495 | ||
1e2f5b6e AM |
8496 | /* Get the relocs. */ |
8497 | internal_relocs | |
4ce794b7 | 8498 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 8499 | info->keep_memory); |
721956f4 | 8500 | if (internal_relocs == NULL) |
1e2f5b6e | 8501 | goto error_ret_free_local; |
721956f4 AM |
8502 | |
8503 | /* Now examine each relocation. */ | |
8504 | irela = internal_relocs; | |
8505 | irelaend = irela + section->reloc_count; | |
8506 | for (; irela < irelaend; irela++) | |
8507 | { | |
4ce794b7 AM |
8508 | enum elf_ppc64_reloc_type r_type; |
8509 | unsigned int r_indx; | |
721956f4 AM |
8510 | enum ppc_stub_type stub_type; |
8511 | struct ppc_stub_hash_entry *stub_entry; | |
8387904d | 8512 | asection *sym_sec, *code_sec; |
721956f4 AM |
8513 | bfd_vma sym_value; |
8514 | bfd_vma destination; | |
8843416a | 8515 | bfd_boolean ok_dest; |
721956f4 | 8516 | struct ppc_link_hash_entry *hash; |
8387904d | 8517 | struct ppc_link_hash_entry *fdh; |
411e1bfb AM |
8518 | struct elf_link_hash_entry *h; |
8519 | Elf_Internal_Sym *sym; | |
721956f4 AM |
8520 | char *stub_name; |
8521 | const asection *id_sec; | |
8387904d | 8522 | long *opd_adjust; |
721956f4 AM |
8523 | |
8524 | r_type = ELF64_R_TYPE (irela->r_info); | |
8525 | r_indx = ELF64_R_SYM (irela->r_info); | |
8526 | ||
4ce794b7 | 8527 | if (r_type >= R_PPC64_max) |
721956f4 AM |
8528 | { |
8529 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 8530 | goto error_ret_free_internal; |
721956f4 AM |
8531 | } |
8532 | ||
8533 | /* Only look for stubs on branch instructions. */ | |
4ce794b7 AM |
8534 | if (r_type != R_PPC64_REL24 |
8535 | && r_type != R_PPC64_REL14 | |
8536 | && r_type != R_PPC64_REL14_BRTAKEN | |
8537 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
721956f4 AM |
8538 | continue; |
8539 | ||
8540 | /* Now determine the call target, its name, value, | |
8541 | section. */ | |
411e1bfb AM |
8542 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
8543 | r_indx, input_bfd)) | |
8544 | goto error_ret_free_internal; | |
8545 | hash = (struct ppc_link_hash_entry *) h; | |
8546 | ||
8843416a | 8547 | ok_dest = FALSE; |
8387904d | 8548 | fdh = NULL; |
411e1bfb | 8549 | if (hash == NULL) |
721956f4 | 8550 | { |
411e1bfb | 8551 | sym_value = sym->st_value; |
8843416a | 8552 | ok_dest = TRUE; |
721956f4 AM |
8553 | } |
8554 | else | |
8555 | { | |
411e1bfb | 8556 | sym_value = 0; |
99877b66 AM |
8557 | /* Recognise an old ABI func code entry sym, and |
8558 | use the func descriptor sym instead. */ | |
8559 | if (hash->elf.root.type == bfd_link_hash_undefweak | |
8387904d AM |
8560 | && hash->elf.root.root.string[0] == '.' |
8561 | && (fdh = get_fdh (hash, htab)) != NULL) | |
8562 | { | |
8387904d AM |
8563 | if (fdh->elf.root.type == bfd_link_hash_defined |
8564 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
8565 | { | |
8566 | sym_sec = fdh->elf.root.u.def.section; | |
8567 | sym_value = fdh->elf.root.u.def.value; | |
8568 | if (sym_sec->output_section != NULL) | |
8569 | ok_dest = TRUE; | |
8570 | } | |
99877b66 AM |
8571 | else |
8572 | fdh = NULL; | |
8387904d AM |
8573 | } |
8574 | else if (hash->elf.root.type == bfd_link_hash_defined | |
8575 | || hash->elf.root.type == bfd_link_hash_defweak) | |
721956f4 | 8576 | { |
721956f4 AM |
8577 | sym_value = hash->elf.root.u.def.value; |
8578 | if (sym_sec->output_section != NULL) | |
8843416a | 8579 | ok_dest = TRUE; |
721956f4 AM |
8580 | } |
8581 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
8582 | ; | |
8583 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
8584 | ; | |
8585 | else | |
8586 | { | |
8587 | bfd_set_error (bfd_error_bad_value); | |
8588 | goto error_ret_free_internal; | |
8589 | } | |
8590 | } | |
8591 | ||
8843416a AM |
8592 | destination = 0; |
8593 | if (ok_dest) | |
8594 | { | |
8595 | sym_value += irela->r_addend; | |
8596 | destination = (sym_value | |
8597 | + sym_sec->output_offset | |
8598 | + sym_sec->output_section->vma); | |
8599 | } | |
8600 | ||
8387904d AM |
8601 | code_sec = sym_sec; |
8602 | opd_adjust = get_opd_info (sym_sec); | |
8603 | if (opd_adjust != NULL) | |
8604 | { | |
8605 | bfd_vma dest; | |
8606 | ||
8607 | if (hash == NULL) | |
8608 | { | |
3f764659 | 8609 | long adjust = opd_adjust[sym_value / 8]; |
8387904d AM |
8610 | if (adjust == -1) |
8611 | continue; | |
8612 | sym_value += adjust; | |
8613 | } | |
8614 | dest = opd_entry_value (sym_sec, sym_value, | |
8615 | &code_sec, &sym_value); | |
8616 | if (dest != (bfd_vma) -1) | |
8617 | { | |
8618 | destination = dest; | |
8619 | if (fdh != NULL) | |
8620 | { | |
8621 | /* Fixup old ABI sym to point at code | |
8622 | entry. */ | |
99877b66 | 8623 | hash->elf.root.type = bfd_link_hash_defweak; |
8387904d AM |
8624 | hash->elf.root.u.def.section = code_sec; |
8625 | hash->elf.root.u.def.value = sym_value; | |
8626 | } | |
8627 | } | |
8628 | } | |
8629 | ||
721956f4 AM |
8630 | /* Determine what (if any) linker stub is needed. */ |
8631 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
8632 | destination); | |
ad8e1ba5 AM |
8633 | |
8634 | if (stub_type != ppc_stub_plt_call) | |
8635 | { | |
8636 | /* Check whether we need a TOC adjusting stub. | |
8637 | Since the linker pastes together pieces from | |
8638 | different object files when creating the | |
8639 | _init and _fini functions, it may be that a | |
8640 | call to what looks like a local sym is in | |
8641 | fact a call needing a TOC adjustment. */ | |
8387904d AM |
8642 | if (code_sec != NULL |
8643 | && code_sec->output_section != NULL | |
8644 | && (htab->stub_group[code_sec->id].toc_off | |
9b5ecbd0 | 8645 | != htab->stub_group[section->id].toc_off) |
8387904d | 8646 | && code_sec->has_gp_reloc |
9b5ecbd0 | 8647 | && section->has_gp_reloc) |
ad8e1ba5 AM |
8648 | stub_type = ppc_stub_long_branch_r2off; |
8649 | } | |
8650 | ||
721956f4 AM |
8651 | if (stub_type == ppc_stub_none) |
8652 | continue; | |
8653 | ||
411e1bfb AM |
8654 | /* __tls_get_addr calls might be eliminated. */ |
8655 | if (stub_type != ppc_stub_plt_call | |
8656 | && hash != NULL | |
8387904d AM |
8657 | && (hash == htab->tls_get_addr |
8658 | || hash == htab->tls_get_addr_fd) | |
411e1bfb AM |
8659 | && section->has_tls_reloc |
8660 | && irela != internal_relocs) | |
8661 | { | |
8662 | /* Get tls info. */ | |
e7b938ca | 8663 | char *tls_mask; |
411e1bfb | 8664 | |
0d4792f7 | 8665 | if (!get_tls_mask (&tls_mask, NULL, &local_syms, |
411e1bfb AM |
8666 | irela - 1, input_bfd)) |
8667 | goto error_ret_free_internal; | |
e7b938ca | 8668 | if (*tls_mask != 0) |
411e1bfb AM |
8669 | continue; |
8670 | } | |
8671 | ||
721956f4 AM |
8672 | /* Support for grouping stub sections. */ |
8673 | id_sec = htab->stub_group[section->id].link_sec; | |
8674 | ||
8675 | /* Get the name of this stub. */ | |
8676 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
8677 | if (!stub_name) | |
8678 | goto error_ret_free_internal; | |
8679 | ||
8680 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 8681 | stub_name, FALSE, FALSE); |
721956f4 AM |
8682 | if (stub_entry != NULL) |
8683 | { | |
8684 | /* The proper stub has already been created. */ | |
8685 | free (stub_name); | |
8686 | continue; | |
8687 | } | |
8688 | ||
8689 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
8690 | if (stub_entry == NULL) | |
8691 | { | |
8692 | free (stub_name); | |
6cdc0ccc AM |
8693 | error_ret_free_internal: |
8694 | if (elf_section_data (section)->relocs == NULL) | |
8695 | free (internal_relocs); | |
8696 | error_ret_free_local: | |
8697 | if (local_syms != NULL | |
8698 | && (symtab_hdr->contents | |
8699 | != (unsigned char *) local_syms)) | |
8700 | free (local_syms); | |
b34976b6 | 8701 | return FALSE; |
721956f4 AM |
8702 | } |
8703 | ||
ad8e1ba5 | 8704 | stub_entry->stub_type = stub_type; |
721956f4 | 8705 | stub_entry->target_value = sym_value; |
8387904d | 8706 | stub_entry->target_section = code_sec; |
721956f4 | 8707 | stub_entry->h = hash; |
411e1bfb | 8708 | stub_entry->addend = irela->r_addend; |
ee75fd95 AM |
8709 | |
8710 | if (stub_entry->h != NULL) | |
8711 | htab->stub_globals += 1; | |
8712 | ||
b34976b6 | 8713 | stub_changed = TRUE; |
721956f4 AM |
8714 | } |
8715 | ||
8716 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 8717 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 8718 | free (internal_relocs); |
721956f4 | 8719 | } |
6cdc0ccc AM |
8720 | |
8721 | if (local_syms != NULL | |
8722 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
8723 | { | |
8724 | if (!info->keep_memory) | |
8725 | free (local_syms); | |
8726 | else | |
8727 | symtab_hdr->contents = (unsigned char *) local_syms; | |
8728 | } | |
721956f4 AM |
8729 | } |
8730 | ||
8731 | if (!stub_changed) | |
8732 | break; | |
8733 | ||
8734 | /* OK, we've added some stubs. Find out the new size of the | |
8735 | stub sections. */ | |
8736 | for (stub_sec = htab->stub_bfd->sections; | |
8737 | stub_sec != NULL; | |
8738 | stub_sec = stub_sec->next) | |
e717da7e | 8739 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
ee75fd95 AM |
8740 | { |
8741 | stub_sec->size = 0; | |
8742 | stub_sec->reloc_count = 0; | |
8743 | } | |
eea6121a AM |
8744 | |
8745 | htab->brlt->size = 0; | |
ee75fd95 | 8746 | if (htab->relbrlt != NULL) |
eea6121a | 8747 | htab->relbrlt->size = 0; |
721956f4 | 8748 | |
63bc6f6c | 8749 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
721956f4 AM |
8750 | |
8751 | /* Ask the linker to do its stuff. */ | |
8752 | (*htab->layout_sections_again) (); | |
8753 | } | |
8754 | ||
afbe61cf AM |
8755 | /* It would be nice to strip .branch_lt from the output if the |
8756 | section is empty, but it's too late. If we strip sections here, | |
8757 | the dynamic symbol table is corrupted since the section symbol | |
8758 | for the stripped section isn't written. */ | |
721956f4 | 8759 | |
b34976b6 | 8760 | return TRUE; |
721956f4 AM |
8761 | } |
8762 | ||
8763 | /* Called after we have determined section placement. If sections | |
805fc799 | 8764 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 8765 | |
805fc799 | 8766 | bfd_vma |
4ce794b7 | 8767 | ppc64_elf_toc (bfd *obfd) |
721956f4 | 8768 | { |
805fc799 AM |
8769 | asection *s; |
8770 | bfd_vma TOCstart; | |
721956f4 | 8771 | |
805fc799 AM |
8772 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
8773 | order. The TOC starts where the first of these sections starts. */ | |
8774 | s = bfd_get_section_by_name (obfd, ".got"); | |
8775 | if (s == NULL) | |
8776 | s = bfd_get_section_by_name (obfd, ".toc"); | |
8777 | if (s == NULL) | |
8778 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
8779 | if (s == NULL) | |
8780 | s = bfd_get_section_by_name (obfd, ".plt"); | |
8781 | if (s == NULL) | |
8782 | { | |
8783 | /* This may happen for | |
8784 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
8785 | .toc directive | |
8786 | o bad linker script | |
8787 | o --gc-sections and empty TOC sections | |
8788 | ||
8789 | FIXME: Warn user? */ | |
8790 | ||
8791 | /* Look for a likely section. We probably won't even be | |
8792 | using TOCstart. */ | |
8793 | for (s = obfd->sections; s != NULL; s = s->next) | |
8794 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
8795 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
8796 | break; | |
721956f4 | 8797 | if (s == NULL) |
805fc799 AM |
8798 | for (s = obfd->sections; s != NULL; s = s->next) |
8799 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
8800 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
8801 | break; | |
721956f4 | 8802 | if (s == NULL) |
805fc799 AM |
8803 | for (s = obfd->sections; s != NULL; s = s->next) |
8804 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
8805 | break; | |
721956f4 | 8806 | if (s == NULL) |
805fc799 AM |
8807 | for (s = obfd->sections; s != NULL; s = s->next) |
8808 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
8809 | break; | |
8810 | } | |
721956f4 | 8811 | |
805fc799 AM |
8812 | TOCstart = 0; |
8813 | if (s != NULL) | |
8814 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 8815 | |
805fc799 | 8816 | return TOCstart; |
721956f4 AM |
8817 | } |
8818 | ||
8819 | /* Build all the stubs associated with the current output file. | |
8820 | The stubs are kept in a hash table attached to the main linker | |
8821 | hash table. This function is called via gldelf64ppc_finish. */ | |
8822 | ||
b34976b6 | 8823 | bfd_boolean |
4ce794b7 AM |
8824 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
8825 | struct bfd_link_info *info, | |
8826 | char **stats) | |
5d1634d7 AM |
8827 | { |
8828 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 8829 | asection *stub_sec; |
5d1634d7 | 8830 | bfd_byte *p; |
e717da7e | 8831 | int stub_sec_count = 0; |
5d1634d7 | 8832 | |
ad8e1ba5 | 8833 | htab->emit_stub_syms = emit_stub_syms; |
eea6121a AM |
8834 | |
8835 | /* Allocate memory to hold the linker stubs. */ | |
721956f4 AM |
8836 | for (stub_sec = htab->stub_bfd->sections; |
8837 | stub_sec != NULL; | |
8838 | stub_sec = stub_sec->next) | |
eea6121a AM |
8839 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
8840 | && stub_sec->size != 0) | |
e717da7e | 8841 | { |
eea6121a AM |
8842 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); |
8843 | if (stub_sec->contents == NULL) | |
8844 | return FALSE; | |
8845 | /* We want to check that built size is the same as calculated | |
8846 | size. rawsize is a convenient location to use. */ | |
8847 | stub_sec->rawsize = stub_sec->size; | |
8848 | stub_sec->size = 0; | |
e717da7e | 8849 | } |
5d1634d7 | 8850 | |
4ce794b7 | 8851 | if (htab->plt != NULL) |
5d1634d7 | 8852 | { |
9f951329 | 8853 | unsigned int indx; |
ad8e1ba5 | 8854 | bfd_vma plt0; |
9f951329 | 8855 | |
721956f4 | 8856 | /* Build the .glink plt call stub. */ |
4ce794b7 AM |
8857 | plt0 = (htab->plt->output_section->vma |
8858 | + htab->plt->output_offset | |
8859 | - (htab->glink->output_section->vma | |
8860 | + htab->glink->output_offset | |
ad8e1ba5 AM |
8861 | + GLINK_CALL_STUB_SIZE)); |
8862 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 8863 | { |
ad8e1ba5 AM |
8864 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
8865 | bfd_set_error (bfd_error_bad_value); | |
8866 | return FALSE; | |
721956f4 | 8867 | } |
721956f4 | 8868 | |
97b639ba AM |
8869 | if (htab->emit_stub_syms) |
8870 | { | |
8871 | struct elf_link_hash_entry *h; | |
8872 | h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE); | |
8873 | if (h == NULL) | |
8874 | return FALSE; | |
8875 | if (h->root.type == bfd_link_hash_new) | |
8876 | { | |
8877 | h->root.type = bfd_link_hash_defined; | |
8878 | h->root.u.def.section = htab->glink; | |
8879 | h->root.u.def.value = 0; | |
f5385ebf AM |
8880 | h->ref_regular = 1; |
8881 | h->def_regular = 1; | |
8882 | h->ref_regular_nonweak = 1; | |
8883 | h->forced_local = 1; | |
8884 | h->non_elf = 0; | |
97b639ba AM |
8885 | } |
8886 | } | |
4ce794b7 AM |
8887 | p = htab->glink->contents; |
8888 | bfd_put_32 (htab->glink->owner, MFCTR_R12, p); | |
ad8e1ba5 | 8889 | p += 4; |
4ce794b7 | 8890 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p); |
ad8e1ba5 | 8891 | p += 4; |
4ce794b7 | 8892 | bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p); |
ad8e1ba5 | 8893 | p += 4; |
4ce794b7 | 8894 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 8895 | p += 4; |
4ce794b7 | 8896 | bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p); |
ad8e1ba5 | 8897 | p += 4; |
4ce794b7 | 8898 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p); |
ad8e1ba5 | 8899 | p += 4; |
4ce794b7 | 8900 | bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p); |
ad8e1ba5 | 8901 | p += 4; |
4ce794b7 | 8902 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 8903 | p += 4; |
4ce794b7 | 8904 | bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p); |
ad8e1ba5 | 8905 | p += 4; |
4ce794b7 | 8906 | bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); |
ad8e1ba5 | 8907 | p += 4; |
4ce794b7 | 8908 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 8909 | p += 4; |
4ce794b7 | 8910 | bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 8911 | p += 4; |
4ce794b7 | 8912 | bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p); |
ad8e1ba5 | 8913 | p += 4; |
4ce794b7 | 8914 | bfd_put_32 (htab->glink->owner, MTCTR_R11, p); |
ad8e1ba5 | 8915 | p += 4; |
4ce794b7 | 8916 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p); |
ad8e1ba5 | 8917 | p += 4; |
4ce794b7 | 8918 | bfd_put_32 (htab->glink->owner, BCTR, p); |
ad8e1ba5 AM |
8919 | p += 4; |
8920 | ||
9f951329 AM |
8921 | /* Build the .glink lazy link call stubs. */ |
8922 | indx = 0; | |
eea6121a | 8923 | while (p < htab->glink->contents + htab->glink->size) |
9f951329 AM |
8924 | { |
8925 | if (indx < 0x8000) | |
8926 | { | |
4ce794b7 | 8927 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
9f951329 AM |
8928 | p += 4; |
8929 | } | |
8930 | else | |
8931 | { | |
4ce794b7 | 8932 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
9f951329 | 8933 | p += 4; |
4ce794b7 | 8934 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
9f951329 AM |
8935 | p += 4; |
8936 | } | |
4ce794b7 AM |
8937 | bfd_put_32 (htab->glink->owner, |
8938 | B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 8939 | indx++; |
9f951329 AM |
8940 | p += 4; |
8941 | } | |
eea6121a | 8942 | htab->glink->rawsize = p - htab->glink->contents; |
5d1634d7 | 8943 | } |
5d1634d7 | 8944 | |
eea6121a | 8945 | if (htab->brlt->size != 0) |
721956f4 | 8946 | { |
4ce794b7 | 8947 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
eea6121a | 8948 | htab->brlt->size); |
4ce794b7 | 8949 | if (htab->brlt->contents == NULL) |
b34976b6 | 8950 | return FALSE; |
721956f4 | 8951 | } |
ee75fd95 | 8952 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
63bc6f6c AM |
8953 | { |
8954 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
eea6121a | 8955 | htab->relbrlt->size); |
63bc6f6c AM |
8956 | if (htab->relbrlt->contents == NULL) |
8957 | return FALSE; | |
8958 | } | |
5d1634d7 | 8959 | |
721956f4 AM |
8960 | /* Build the stubs as directed by the stub hash table. */ |
8961 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 8962 | |
721956f4 AM |
8963 | for (stub_sec = htab->stub_bfd->sections; |
8964 | stub_sec != NULL; | |
8965 | stub_sec = stub_sec->next) | |
e717da7e AM |
8966 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
8967 | { | |
8968 | stub_sec_count += 1; | |
eea6121a | 8969 | if (stub_sec->rawsize != stub_sec->size) |
e717da7e AM |
8970 | break; |
8971 | } | |
5d1634d7 | 8972 | |
721956f4 | 8973 | if (stub_sec != NULL |
eea6121a | 8974 | || htab->glink->rawsize != htab->glink->size) |
5d1634d7 | 8975 | { |
b34976b6 | 8976 | htab->stub_error = TRUE; |
721956f4 | 8977 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 8978 | } |
721956f4 | 8979 | |
d2a300cf AM |
8980 | if (htab->stub_error) |
8981 | return FALSE; | |
8982 | ||
8983 | if (stats != NULL) | |
8984 | { | |
8985 | *stats = bfd_malloc (500); | |
8986 | if (*stats == NULL) | |
8987 | return FALSE; | |
8988 | ||
ee75fd95 | 8989 | sprintf (*stats, _("linker stubs in %u group%s\n" |
d2a300cf AM |
8990 | " branch %lu\n" |
8991 | " toc adjust %lu\n" | |
8992 | " long branch %lu\n" | |
8993 | " long toc adj %lu\n" | |
8994 | " plt call %lu"), | |
e717da7e | 8995 | stub_sec_count, |
ee75fd95 | 8996 | stub_sec_count == 1 ? "" : "s", |
4ce794b7 AM |
8997 | htab->stub_count[ppc_stub_long_branch - 1], |
8998 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
8999 | htab->stub_count[ppc_stub_plt_branch - 1], | |
9000 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
9001 | htab->stub_count[ppc_stub_plt_call - 1]); | |
d2a300cf AM |
9002 | } |
9003 | return TRUE; | |
5bd4f169 AM |
9004 | } |
9005 | ||
99877b66 AM |
9006 | /* This function undoes the changes made by add_symbol_adjust. */ |
9007 | ||
9008 | static bfd_boolean | |
9009 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
9010 | { | |
9011 | struct ppc_link_hash_entry *eh; | |
9012 | ||
9013 | if (h->root.type == bfd_link_hash_indirect) | |
9014 | return TRUE; | |
9015 | ||
9016 | if (h->root.type == bfd_link_hash_warning) | |
9017 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
9018 | ||
9019 | eh = (struct ppc_link_hash_entry *) h; | |
9020 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
9021 | return TRUE; | |
9022 | ||
9023 | eh->elf.root.type = bfd_link_hash_undefined; | |
9024 | return TRUE; | |
9025 | } | |
9026 | ||
9027 | void | |
9028 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
9029 | { | |
9030 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9031 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
9032 | } | |
9033 | ||
5bd4f169 AM |
9034 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
9035 | to handle the relocations for a section. | |
9036 | ||
9037 | The relocs are always passed as Rela structures; if the section | |
9038 | actually uses Rel structures, the r_addend field will always be | |
9039 | zero. | |
9040 | ||
9041 | This function is responsible for adjust the section contents as | |
9042 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 9043 | relocatable output file) adjusting the reloc addend as |
5bd4f169 AM |
9044 | necessary. |
9045 | ||
9046 | This function does not have to worry about setting the reloc | |
9047 | address or the reloc symbol index. | |
9048 | ||
9049 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
9050 | ||
9051 | LOCAL_SECTIONS is an array giving the section in the input file | |
9052 | corresponding to the st_shndx field of each local symbol. | |
9053 | ||
9054 | The global hash table entry for the global symbols can be found | |
9055 | via elf_sym_hashes (input_bfd). | |
9056 | ||
1049f94e | 9057 | When generating relocatable output, this function must handle |
5bd4f169 AM |
9058 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
9059 | going to be the section symbol corresponding to the output | |
9060 | section, which means that the addend must be adjusted | |
9061 | accordingly. */ | |
9062 | ||
b34976b6 | 9063 | static bfd_boolean |
4ce794b7 AM |
9064 | ppc64_elf_relocate_section (bfd *output_bfd, |
9065 | struct bfd_link_info *info, | |
9066 | bfd *input_bfd, | |
9067 | asection *input_section, | |
9068 | bfd_byte *contents, | |
9069 | Elf_Internal_Rela *relocs, | |
9070 | Elf_Internal_Sym *local_syms, | |
9071 | asection **local_sections) | |
5bd4f169 | 9072 | { |
65f38f15 | 9073 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
9074 | Elf_Internal_Shdr *symtab_hdr; |
9075 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
9076 | Elf_Internal_Rela *rel; |
9077 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
9078 | Elf_Internal_Rela outrel; |
9079 | bfd_byte *loc; | |
411e1bfb | 9080 | struct got_entry **local_got_ents; |
5bd4f169 | 9081 | bfd_vma TOCstart; |
b34976b6 AM |
9082 | bfd_boolean ret = TRUE; |
9083 | bfd_boolean is_opd; | |
96e0dda4 | 9084 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 9085 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 9086 | |
1049f94e | 9087 | if (info->relocatable) |
b34976b6 | 9088 | return TRUE; |
b491616a | 9089 | |
65f38f15 | 9090 | /* Initialize howto table if needed. */ |
5bd4f169 | 9091 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
9092 | ppc_howto_init (); |
9093 | ||
65f38f15 | 9094 | htab = ppc_hash_table (info); |
ee75fd95 AM |
9095 | |
9096 | /* Don't relocate stub sections. */ | |
9097 | if (input_section->owner == htab->stub_bfd) | |
9098 | return TRUE; | |
9099 | ||
411e1bfb | 9100 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 9101 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
9102 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
9103 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 9104 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 9105 | |
5bd4f169 AM |
9106 | rel = relocs; |
9107 | relend = relocs + input_section->reloc_count; | |
9108 | for (; rel < relend; rel++) | |
9109 | { | |
04c9666a | 9110 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
9111 | bfd_vma addend; |
9112 | bfd_reloc_status_type r; | |
9113 | Elf_Internal_Sym *sym; | |
9114 | asection *sec; | |
039b3fef AM |
9115 | struct elf_link_hash_entry *h_elf; |
9116 | struct ppc_link_hash_entry *h; | |
9117 | struct ppc_link_hash_entry *fdh; | |
5bd4f169 | 9118 | const char *sym_name; |
0d4792f7 | 9119 | unsigned long r_symndx, toc_symndx; |
951fd09b | 9120 | char tls_mask, tls_gd, tls_type; |
0d4792f7 | 9121 | char sym_type; |
5bd4f169 | 9122 | bfd_vma relocation; |
b34976b6 AM |
9123 | bfd_boolean unresolved_reloc; |
9124 | bfd_boolean warned; | |
50bc7936 | 9125 | unsigned long insn, mask; |
721956f4 AM |
9126 | struct ppc_stub_hash_entry *stub_entry; |
9127 | bfd_vma max_br_offset; | |
9128 | bfd_vma from; | |
5bd4f169 | 9129 | |
4ce794b7 | 9130 | r_type = ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 9131 | r_symndx = ELF64_R_SYM (rel->r_info); |
ee87f2da AM |
9132 | |
9133 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
9134 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
9135 | proper TOC base to use. */ | |
9136 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
9137 | && rel != relocs | |
9138 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
9139 | && is_opd) | |
9140 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
9141 | ||
4ce794b7 AM |
9142 | sym = NULL; |
9143 | sec = NULL; | |
039b3fef | 9144 | h_elf = NULL; |
4ce794b7 | 9145 | sym_name = NULL; |
b34976b6 AM |
9146 | unresolved_reloc = FALSE; |
9147 | warned = FALSE; | |
65f38f15 | 9148 | |
0b13192e | 9149 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
9150 | { |
9151 | /* It's a local symbol. */ | |
4025353c AM |
9152 | long *opd_adjust; |
9153 | ||
5bd4f169 AM |
9154 | sym = local_syms + r_symndx; |
9155 | sec = local_sections[r_symndx]; | |
be8dd2ca | 9156 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym); |
0d4792f7 | 9157 | sym_type = ELF64_ST_TYPE (sym->st_info); |
8517fae7 | 9158 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
4025353c AM |
9159 | opd_adjust = get_opd_info (sec); |
9160 | if (opd_adjust != NULL) | |
1e2f5b6e | 9161 | { |
3f764659 | 9162 | long adjust = opd_adjust[(sym->st_value + rel->r_addend) / 8]; |
4025353c AM |
9163 | if (adjust == -1) |
9164 | relocation = 0; | |
9165 | else | |
9166 | relocation += adjust; | |
1e2f5b6e | 9167 | } |
5bd4f169 AM |
9168 | } |
9169 | else | |
9170 | { | |
b2a8e766 AM |
9171 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
9172 | r_symndx, symtab_hdr, sym_hashes, | |
039b3fef | 9173 | h_elf, sec, relocation, |
b2a8e766 | 9174 | unresolved_reloc, warned); |
039b3fef AM |
9175 | sym_name = h_elf->root.root.string; |
9176 | sym_type = h_elf->type; | |
5bd4f169 | 9177 | } |
039b3fef | 9178 | h = (struct ppc_link_hash_entry *) h_elf; |
5bd4f169 | 9179 | |
951fd09b AM |
9180 | /* TLS optimizations. Replace instruction sequences and relocs |
9181 | based on information we collected in tls_optimize. We edit | |
9182 | RELOCS so that --emit-relocs will output something sensible | |
9183 | for the final instruction stream. */ | |
9184 | tls_mask = 0; | |
9185 | tls_gd = 0; | |
0d4792f7 | 9186 | toc_symndx = 0; |
d881513a | 9187 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
9188 | { |
9189 | if (h != NULL) | |
039b3fef | 9190 | tls_mask = h->tls_mask; |
411e1bfb AM |
9191 | else if (local_got_ents != NULL) |
9192 | { | |
e7b938ca AM |
9193 | char *lgot_masks; |
9194 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
9195 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb | 9196 | } |
0d4792f7 AM |
9197 | if (tls_mask == 0 && r_type == R_PPC64_TLS) |
9198 | { | |
9199 | /* Check for toc tls entries. */ | |
9200 | char *toc_tls; | |
9201 | ||
9202 | if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms, | |
9203 | rel, input_bfd)) | |
9204 | return FALSE; | |
9205 | ||
9206 | if (toc_tls) | |
9207 | tls_mask = *toc_tls; | |
9208 | } | |
9209 | } | |
9210 | ||
9211 | /* Check that tls relocs are used with tls syms, and non-tls | |
9212 | relocs are used with non-tls syms. */ | |
9213 | if (r_symndx != 0 | |
9214 | && r_type != R_PPC64_NONE | |
9215 | && (h == NULL | |
039b3fef AM |
9216 | || h->elf.root.type == bfd_link_hash_defined |
9217 | || h->elf.root.type == bfd_link_hash_defweak) | |
0d4792f7 AM |
9218 | && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS)) |
9219 | { | |
9220 | if (r_type == R_PPC64_TLS && tls_mask != 0) | |
9221 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ | |
9222 | ; | |
9223 | else | |
9224 | (*_bfd_error_handler) | |
9225 | (sym_type == STT_TLS | |
d003868e AM |
9226 | ? _("%B(%A+0x%lx): %s used with TLS symbol %s") |
9227 | : _("%B(%A+0x%lx): %s used with non-TLS symbol %s"), | |
9228 | input_bfd, | |
9229 | input_section, | |
0d4792f7 AM |
9230 | (long) rel->r_offset, |
9231 | ppc64_elf_howto_table[r_type]->name, | |
9232 | sym_name); | |
411e1bfb AM |
9233 | } |
9234 | ||
9235 | /* Ensure reloc mapping code below stays sane. */ | |
9236 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
9237 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
9238 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
9239 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
9240 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
9241 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
9242 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
9243 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
9244 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
9245 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
9246 | abort (); | |
0d4792f7 | 9247 | |
411e1bfb AM |
9248 | switch (r_type) |
9249 | { | |
9250 | default: | |
411e1bfb AM |
9251 | break; |
9252 | ||
9253 | case R_PPC64_TOC16: | |
9254 | case R_PPC64_TOC16_LO: | |
9255 | case R_PPC64_TOC16_DS: | |
9256 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
9257 | { |
9258 | /* Check for toc tls entries. */ | |
9259 | char *toc_tls; | |
951fd09b | 9260 | int retval; |
411e1bfb | 9261 | |
0d4792f7 AM |
9262 | retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms, |
9263 | rel, input_bfd); | |
951fd09b | 9264 | if (retval == 0) |
411e1bfb AM |
9265 | return FALSE; |
9266 | ||
9267 | if (toc_tls) | |
9268 | { | |
951fd09b | 9269 | tls_mask = *toc_tls; |
411e1bfb AM |
9270 | if (r_type == R_PPC64_TOC16_DS |
9271 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
9272 | { |
9273 | if (tls_mask != 0 | |
9274 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
9275 | goto toctprel; | |
9276 | } | |
411e1bfb | 9277 | else |
951fd09b AM |
9278 | { |
9279 | /* If we found a GD reloc pair, then we might be | |
9280 | doing a GD->IE transition. */ | |
9281 | if (retval == 2) | |
9282 | { | |
9283 | tls_gd = TLS_TPRELGD; | |
9284 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9285 | goto tls_get_addr_check; | |
9286 | } | |
9287 | else if (retval == 3) | |
9288 | { | |
9289 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
9290 | goto tls_get_addr_check; | |
9291 | } | |
9292 | } | |
411e1bfb AM |
9293 | } |
9294 | } | |
9295 | break; | |
9296 | ||
9297 | case R_PPC64_GOT_TPREL16_DS: | |
9298 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
9299 | if (tls_mask != 0 |
9300 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 9301 | { |
81407a69 | 9302 | toctprel: |
411e1bfb AM |
9303 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
9304 | insn &= 31 << 21; | |
9305 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
9306 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
9307 | r_type = R_PPC64_TPREL16_HA; | |
0d4792f7 AM |
9308 | if (toc_symndx != 0) |
9309 | { | |
9310 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
9311 | /* We changed the symbol. Start over in order to | |
9312 | get h, sym, sec etc. right. */ | |
9313 | rel--; | |
9314 | continue; | |
9315 | } | |
9316 | else | |
9317 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9318 | } |
9319 | break; | |
9320 | ||
9321 | case R_PPC64_TLS: | |
951fd09b AM |
9322 | if (tls_mask != 0 |
9323 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 9324 | { |
50bc7936 | 9325 | bfd_vma rtra; |
411e1bfb | 9326 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
772119ce | 9327 | if ((insn & ((0x3f << 26) | (31 << 11))) |
411e1bfb AM |
9328 | == ((31 << 26) | (13 << 11))) |
9329 | rtra = insn & ((1 << 26) - (1 << 16)); | |
772119ce | 9330 | else if ((insn & ((0x3f << 26) | (31 << 16))) |
411e1bfb AM |
9331 | == ((31 << 26) | (13 << 16))) |
9332 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
9333 | else | |
9334 | abort (); | |
9335 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
9336 | /* add -> addi. */ | |
9337 | insn = 14 << 26; | |
9338 | else if ((insn & (31 << 1)) == 23 << 1 | |
9339 | && ((insn & (31 << 6)) < 14 << 6 | |
9340 | || ((insn & (31 << 6)) >= 16 << 6 | |
9341 | && (insn & (31 << 6)) < 24 << 6))) | |
9342 | /* load and store indexed -> dform. */ | |
9343 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
9344 | else if ((insn & (31 << 1)) == 21 << 1 | |
9345 | && (insn & (0x1a << 6)) == 0) | |
9346 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
9347 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
9348 | | ((insn >> 6) & 1)); | |
9349 | else if ((insn & (31 << 1)) == 21 << 1 | |
9350 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
9351 | /* lwax -> lwa. */ | |
9352 | insn = (58 << 26) | 2; | |
9353 | else | |
9354 | abort (); | |
9355 | insn |= rtra; | |
9356 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
411e1bfb AM |
9357 | /* Was PPC64_TLS which sits on insn boundary, now |
9358 | PPC64_TPREL16_LO which is at insn+2. */ | |
9359 | rel->r_offset += 2; | |
0d4792f7 AM |
9360 | r_type = R_PPC64_TPREL16_LO; |
9361 | if (toc_symndx != 0) | |
9362 | { | |
9363 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
9364 | /* We changed the symbol. Start over in order to | |
9365 | get h, sym, sec etc. right. */ | |
9366 | rel--; | |
9367 | continue; | |
9368 | } | |
9369 | else | |
9370 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9371 | } |
9372 | break; | |
9373 | ||
411e1bfb AM |
9374 | case R_PPC64_GOT_TLSGD16_HI: |
9375 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
9376 | tls_gd = TLS_TPRELGD; |
9377 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9378 | goto tls_gdld_hi; | |
9379 | break; | |
9380 | ||
411e1bfb AM |
9381 | case R_PPC64_GOT_TLSLD16_HI: |
9382 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 9383 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 9384 | { |
951fd09b AM |
9385 | tls_gdld_hi: |
9386 | if ((tls_mask & tls_gd) != 0) | |
9387 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
9388 | + R_PPC64_GOT_TPREL16_DS); | |
9389 | else | |
411e1bfb | 9390 | { |
951fd09b AM |
9391 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
9392 | rel->r_offset -= 2; | |
9393 | r_type = R_PPC64_NONE; | |
411e1bfb | 9394 | } |
951fd09b | 9395 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
9396 | } |
9397 | break; | |
9398 | ||
951fd09b AM |
9399 | case R_PPC64_GOT_TLSGD16: |
9400 | case R_PPC64_GOT_TLSGD16_LO: | |
9401 | tls_gd = TLS_TPRELGD; | |
9402 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
9403 | goto tls_get_addr_check; | |
9404 | break; | |
411e1bfb | 9405 | |
951fd09b AM |
9406 | case R_PPC64_GOT_TLSLD16: |
9407 | case R_PPC64_GOT_TLSLD16_LO: | |
9408 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
9409 | { | |
9410 | tls_get_addr_check: | |
9411 | if (rel + 1 < relend) | |
411e1bfb | 9412 | { |
951fd09b AM |
9413 | enum elf_ppc64_reloc_type r_type2; |
9414 | unsigned long r_symndx2; | |
9415 | struct elf_link_hash_entry *h2; | |
9416 | bfd_vma insn1, insn2, insn3; | |
9417 | bfd_vma offset; | |
9418 | ||
9419 | /* The next instruction should be a call to | |
9420 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4ce794b7 | 9421 | r_type2 = ELF64_R_TYPE (rel[1].r_info); |
951fd09b AM |
9422 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); |
9423 | if (r_symndx2 < symtab_hdr->sh_info | |
9424 | || (r_type2 != R_PPC64_REL14 | |
9425 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
9426 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
9427 | && r_type2 != R_PPC64_REL24)) | |
9428 | break; | |
9429 | ||
9430 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
9431 | while (h2->root.type == bfd_link_hash_indirect | |
9432 | || h2->root.type == bfd_link_hash_warning) | |
9433 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
8387904d AM |
9434 | if (h2 == NULL || (h2 != &htab->tls_get_addr->elf |
9435 | && h2 != &htab->tls_get_addr_fd->elf)) | |
951fd09b AM |
9436 | break; |
9437 | ||
9438 | /* OK, it checks out. Replace the call. */ | |
9439 | offset = rel[1].r_offset; | |
9440 | insn1 = bfd_get_32 (output_bfd, | |
9441 | contents + rel->r_offset - 2); | |
9442 | insn3 = bfd_get_32 (output_bfd, | |
9443 | contents + offset + 4); | |
9444 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 9445 | { |
951fd09b AM |
9446 | /* IE */ |
9447 | insn1 &= (1 << 26) - (1 << 2); | |
9448 | insn1 |= 58 << 26; /* ld */ | |
9449 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
9450 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
9451 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
9452 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
9453 | + R_PPC64_GOT_TPREL16_DS); | |
9454 | else | |
9455 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
9456 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
9457 | } |
9458 | else | |
951fd09b AM |
9459 | { |
9460 | /* LE */ | |
9461 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
9462 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
9463 | if (tls_gd == 0) | |
9464 | { | |
9465 | /* Was an LD reloc. */ | |
9466 | r_symndx = 0; | |
e1918d23 AM |
9467 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
9468 | rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; | |
951fd09b | 9469 | } |
0d4792f7 AM |
9470 | else if (toc_symndx != 0) |
9471 | r_symndx = toc_symndx; | |
951fd09b AM |
9472 | r_type = R_PPC64_TPREL16_HA; |
9473 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
9474 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
9475 | R_PPC64_TPREL16_LO); | |
9476 | rel[1].r_offset += 2; | |
9477 | } | |
9478 | if (insn3 == NOP | |
9479 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
9480 | { | |
9481 | insn3 = insn2; | |
9482 | insn2 = NOP; | |
9483 | rel[1].r_offset += 4; | |
9484 | } | |
9485 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
9486 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
9487 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
0d4792f7 | 9488 | if (tls_gd == 0 || toc_symndx != 0) |
951fd09b | 9489 | { |
0d4792f7 AM |
9490 | /* We changed the symbol. Start over in order |
9491 | to get h, sym, sec etc. right. */ | |
951fd09b AM |
9492 | rel--; |
9493 | continue; | |
9494 | } | |
411e1bfb | 9495 | } |
411e1bfb | 9496 | } |
411e1bfb AM |
9497 | break; |
9498 | ||
9499 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
9500 | if (rel + 1 < relend |
9501 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
9502 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 9503 | { |
951fd09b AM |
9504 | if ((tls_mask & TLS_GD) == 0) |
9505 | { | |
9506 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
9507 | if ((tls_mask & TLS_TPRELGD) != 0) | |
9508 | r_type = R_PPC64_TPREL64; | |
9509 | else | |
9510 | { | |
4ce794b7 | 9511 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
951fd09b AM |
9512 | r_type = R_PPC64_NONE; |
9513 | } | |
9514 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
9515 | } | |
9516 | } | |
9517 | else | |
9518 | { | |
9519 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb | 9520 | { |
4ce794b7 | 9521 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
411e1bfb | 9522 | r_type = R_PPC64_NONE; |
951fd09b | 9523 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 9524 | } |
411e1bfb AM |
9525 | } |
9526 | break; | |
9527 | ||
9528 | case R_PPC64_TPREL64: | |
951fd09b | 9529 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
9530 | { |
9531 | r_type = R_PPC64_NONE; | |
9532 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
9533 | } | |
9534 | break; | |
9535 | } | |
9536 | ||
9537 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 9538 | insn = 0; |
b25116a9 AM |
9539 | max_br_offset = 1 << 25; |
9540 | addend = rel->r_addend; | |
65f38f15 | 9541 | switch (r_type) |
5bd4f169 AM |
9542 | { |
9543 | default: | |
65f38f15 | 9544 | break; |
5bd4f169 | 9545 | |
65f38f15 AM |
9546 | /* Branch taken prediction relocations. */ |
9547 | case R_PPC64_ADDR14_BRTAKEN: | |
9548 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
9549 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
9550 | /* Fall thru. */ | |
65f38f15 | 9551 | |
86c76c7b | 9552 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
9553 | case R_PPC64_ADDR14_BRNTAKEN: |
9554 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
9555 | insn |= bfd_get_32 (output_bfd, |
9556 | contents + rel->r_offset) & ~(0x01 << 21); | |
b25116a9 | 9557 | /* Fall thru. */ |
86c76c7b | 9558 | |
b25116a9 AM |
9559 | case R_PPC64_REL14: |
9560 | max_br_offset = 1 << 15; | |
9561 | /* Fall thru. */ | |
5bd4f169 | 9562 | |
65f38f15 | 9563 | case R_PPC64_REL24: |
ad8e1ba5 AM |
9564 | /* Calls to functions with a different TOC, such as calls to |
9565 | shared objects, need to alter the TOC pointer. This is | |
9566 | done using a linkage stub. A REL24 branching to these | |
9567 | linkage stubs needs to be followed by a nop, as the nop | |
9568 | will be replaced with an instruction to restore the TOC | |
9569 | base pointer. */ | |
b25116a9 | 9570 | stub_entry = NULL; |
8387904d | 9571 | fdh = h; |
ad8e1ba5 | 9572 | if (((h != NULL |
039b3fef AM |
9573 | && (((fdh = h->oh) != NULL |
9574 | && fdh->elf.plt.plist != NULL) | |
9575 | || (fdh = h)->elf.plt.plist != NULL)) | |
8387904d | 9576 | || (sec != NULL |
ad8e1ba5 | 9577 | && sec->output_section != NULL |
b25116a9 | 9578 | && sec->id <= htab->top_id |
ad8e1ba5 AM |
9579 | && (htab->stub_group[sec->id].toc_off |
9580 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 9581 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
9582 | rel, htab)) != NULL |
9583 | && (stub_entry->stub_type == ppc_stub_plt_call | |
9584 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
9585 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 9586 | { |
b25116a9 | 9587 | bfd_boolean can_plt_call = FALSE; |
721956f4 | 9588 | |
eea6121a | 9589 | if (rel->r_offset + 8 <= input_section->size) |
41bd81ab | 9590 | { |
b25116a9 AM |
9591 | unsigned long nop; |
9592 | nop = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
9593 | if (nop == NOP | |
9594 | || nop == CROR_151515 || nop == CROR_313131) | |
41bd81ab | 9595 | { |
4ce794b7 | 9596 | bfd_put_32 (input_bfd, LD_R2_40R1, |
411e1bfb | 9597 | contents + rel->r_offset + 4); |
b25116a9 | 9598 | can_plt_call = TRUE; |
41bd81ab | 9599 | } |
5bd4f169 | 9600 | } |
721956f4 AM |
9601 | |
9602 | if (!can_plt_call) | |
9603 | { | |
ad8e1ba5 AM |
9604 | if (stub_entry->stub_type == ppc_stub_plt_call) |
9605 | { | |
9606 | /* If this is a plain branch rather than a branch | |
9607 | and link, don't require a nop. */ | |
b25116a9 AM |
9608 | unsigned long br; |
9609 | br = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
9610 | if ((br & 1) == 0) | |
9611 | can_plt_call = TRUE; | |
ad8e1ba5 | 9612 | } |
6ab189d5 | 9613 | else if (h != NULL |
039b3fef | 9614 | && strcmp (h->elf.root.root.string, |
6ab189d5 AM |
9615 | ".__libc_start_main") == 0) |
9616 | { | |
9617 | /* Allow crt1 branch to go via a toc adjusting stub. */ | |
b25116a9 | 9618 | can_plt_call = TRUE; |
6ab189d5 | 9619 | } |
ad8e1ba5 AM |
9620 | else |
9621 | { | |
9622 | if (strcmp (input_section->output_section->name, | |
9623 | ".init") == 0 | |
9624 | || strcmp (input_section->output_section->name, | |
9625 | ".fini") == 0) | |
9626 | (*_bfd_error_handler) | |
d003868e | 9627 | (_("%B(%A+0x%lx): automatic multiple TOCs " |
ad8e1ba5 AM |
9628 | "not supported using your crt files; " |
9629 | "recompile with -mminimal-toc or upgrade gcc"), | |
d003868e AM |
9630 | input_bfd, |
9631 | input_section, | |
ad8e1ba5 AM |
9632 | (long) rel->r_offset); |
9633 | else | |
9634 | (*_bfd_error_handler) | |
d003868e | 9635 | (_("%B(%A+0x%lx): sibling call optimization to `%s' " |
ad8e1ba5 AM |
9636 | "does not allow automatic multiple TOCs; " |
9637 | "recompile with -mminimal-toc or " | |
9638 | "-fno-optimize-sibling-calls, " | |
9639 | "or make `%s' extern"), | |
d003868e AM |
9640 | input_bfd, |
9641 | input_section, | |
ad8e1ba5 AM |
9642 | (long) rel->r_offset, |
9643 | sym_name, | |
9644 | sym_name); | |
9645 | bfd_set_error (bfd_error_bad_value); | |
9646 | ret = FALSE; | |
9647 | } | |
721956f4 AM |
9648 | } |
9649 | ||
b25116a9 AM |
9650 | if (can_plt_call |
9651 | && stub_entry->stub_type == ppc_stub_plt_call) | |
9652 | unresolved_reloc = FALSE; | |
9653 | } | |
9654 | ||
8387904d AM |
9655 | if (stub_entry == NULL |
9656 | && get_opd_info (sec) != NULL) | |
9657 | { | |
9658 | /* The branch destination is the value of the opd entry. */ | |
9659 | bfd_vma off = (relocation - sec->output_section->vma | |
9660 | - sec->output_offset + rel->r_addend); | |
9661 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL); | |
9662 | if (dest != (bfd_vma) -1) | |
9663 | { | |
9664 | relocation = dest; | |
9665 | addend = 0; | |
9666 | } | |
9667 | } | |
9668 | ||
b25116a9 AM |
9669 | /* If the branch is out of reach we ought to have a long |
9670 | branch stub. */ | |
9671 | from = (rel->r_offset | |
9672 | + input_section->output_offset | |
9673 | + input_section->output_section->vma); | |
9674 | ||
9675 | if (stub_entry == NULL | |
9676 | && (relocation + rel->r_addend - from + max_br_offset | |
9677 | >= 2 * max_br_offset) | |
9678 | && r_type != R_PPC64_ADDR14_BRTAKEN | |
9679 | && r_type != R_PPC64_ADDR14_BRNTAKEN) | |
039b3fef AM |
9680 | stub_entry = ppc_get_stub_entry (input_section, sec, h, rel, |
9681 | htab); | |
b25116a9 AM |
9682 | |
9683 | if (stub_entry != NULL) | |
9684 | { | |
9685 | /* Munge up the value and addend so that we call the stub | |
9686 | rather than the procedure directly. */ | |
9687 | relocation = (stub_entry->stub_offset | |
9688 | + stub_entry->stub_sec->output_offset | |
9689 | + stub_entry->stub_sec->output_section->vma); | |
9690 | addend = 0; | |
9691 | } | |
9692 | ||
9693 | if (insn != 0) | |
9694 | { | |
9695 | if (is_power4) | |
721956f4 | 9696 | { |
b25116a9 AM |
9697 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
9698 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
9699 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
9700 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
9701 | insn |= 0x02 << 21; | |
9702 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
9703 | insn |= 0x08 << 21; | |
9704 | else | |
9705 | break; | |
9706 | } | |
9707 | else | |
9708 | { | |
9709 | /* Invert 'y' bit if not the default. */ | |
9710 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
9711 | insn ^= 0x01 << 21; | |
721956f4 | 9712 | } |
b25116a9 AM |
9713 | |
9714 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
5bd4f169 | 9715 | } |
e86ce104 | 9716 | |
06da1e8e AM |
9717 | /* NOP out calls to undefined weak functions. |
9718 | We can thus call a weak function without first | |
9719 | checking whether the function is defined. */ | |
b25116a9 | 9720 | else if (h != NULL |
039b3fef | 9721 | && h->elf.root.type == bfd_link_hash_undefweak |
b25116a9 AM |
9722 | && r_type == R_PPC64_REL24 |
9723 | && relocation == 0 | |
9724 | && rel->r_addend == 0) | |
e86ce104 | 9725 | { |
06da1e8e AM |
9726 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
9727 | continue; | |
e86ce104 | 9728 | } |
65f38f15 AM |
9729 | break; |
9730 | } | |
5bd4f169 | 9731 | |
65f38f15 | 9732 | /* Set `addend'. */ |
411e1bfb | 9733 | tls_type = 0; |
65f38f15 AM |
9734 | switch (r_type) |
9735 | { | |
9736 | default: | |
9737 | (*_bfd_error_handler) | |
d003868e AM |
9738 | (_("%B: unknown relocation type %d for symbol %s"), |
9739 | input_bfd, (int) r_type, sym_name); | |
5bd4f169 | 9740 | |
65f38f15 | 9741 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 9742 | ret = FALSE; |
65f38f15 | 9743 | continue; |
5bd4f169 | 9744 | |
65f38f15 | 9745 | case R_PPC64_NONE: |
411e1bfb | 9746 | case R_PPC64_TLS: |
04c9666a AM |
9747 | case R_PPC64_GNU_VTINHERIT: |
9748 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 9749 | continue; |
5bd4f169 AM |
9750 | |
9751 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
9752 | address in the GOT as relocation value instead of the | |
411e1bfb | 9753 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 9754 | symbol and put the symbol value there. */ |
411e1bfb AM |
9755 | case R_PPC64_GOT_TLSGD16: |
9756 | case R_PPC64_GOT_TLSGD16_LO: | |
9757 | case R_PPC64_GOT_TLSGD16_HI: | |
9758 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 9759 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
9760 | goto dogot; |
9761 | ||
9762 | case R_PPC64_GOT_TLSLD16: | |
9763 | case R_PPC64_GOT_TLSLD16_LO: | |
9764 | case R_PPC64_GOT_TLSLD16_HI: | |
9765 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 9766 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
9767 | goto dogot; |
9768 | ||
9769 | case R_PPC64_GOT_TPREL16_DS: | |
9770 | case R_PPC64_GOT_TPREL16_LO_DS: | |
9771 | case R_PPC64_GOT_TPREL16_HI: | |
9772 | case R_PPC64_GOT_TPREL16_HA: | |
9773 | tls_type = TLS_TLS | TLS_TPREL; | |
9774 | goto dogot; | |
9775 | ||
9776 | case R_PPC64_GOT_DTPREL16_DS: | |
9777 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
9778 | case R_PPC64_GOT_DTPREL16_HI: | |
9779 | case R_PPC64_GOT_DTPREL16_HA: | |
9780 | tls_type = TLS_TLS | TLS_DTPREL; | |
9781 | goto dogot; | |
9782 | ||
65f38f15 AM |
9783 | case R_PPC64_GOT16: |
9784 | case R_PPC64_GOT16_LO: | |
9785 | case R_PPC64_GOT16_HI: | |
9786 | case R_PPC64_GOT16_HA: | |
9787 | case R_PPC64_GOT16_DS: | |
9788 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 9789 | dogot: |
5bd4f169 AM |
9790 | { |
9791 | /* Relocation is to the entry for this symbol in the global | |
9792 | offset table. */ | |
e717da7e | 9793 | asection *got; |
d881513a | 9794 | bfd_vma *offp; |
5bd4f169 | 9795 | bfd_vma off; |
d881513a | 9796 | unsigned long indx = 0; |
65f38f15 | 9797 | |
d881513a AM |
9798 | if (tls_type == (TLS_TLS | TLS_LD) |
9799 | && (h == NULL | |
f5385ebf | 9800 | || !h->elf.def_dynamic)) |
e717da7e | 9801 | offp = &ppc64_tlsld_got (input_bfd)->offset; |
411e1bfb | 9802 | else |
5bd4f169 | 9803 | { |
d881513a | 9804 | struct got_entry *ent; |
5bd4f169 | 9805 | |
d881513a AM |
9806 | if (h != NULL) |
9807 | { | |
9808 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
039b3fef AM |
9809 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
9810 | &h->elf) | |
d881513a | 9811 | || (info->shared |
039b3fef | 9812 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
d881513a AM |
9813 | /* This is actually a static link, or it is a |
9814 | -Bsymbolic link and the symbol is defined | |
9815 | locally, or the symbol was forced to be local | |
9816 | because of a version file. */ | |
9817 | ; | |
9818 | else | |
9819 | { | |
039b3fef | 9820 | indx = h->elf.dynindx; |
d881513a AM |
9821 | unresolved_reloc = FALSE; |
9822 | } | |
039b3fef | 9823 | ent = h->elf.got.glist; |
d881513a | 9824 | } |
411e1bfb | 9825 | else |
5bd4f169 | 9826 | { |
d881513a AM |
9827 | if (local_got_ents == NULL) |
9828 | abort (); | |
9829 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 9830 | } |
d881513a AM |
9831 | |
9832 | for (; ent != NULL; ent = ent->next) | |
9833 | if (ent->addend == rel->r_addend | |
e717da7e | 9834 | && ent->owner == input_bfd |
d881513a AM |
9835 | && ent->tls_type == tls_type) |
9836 | break; | |
9837 | if (ent == NULL) | |
9838 | abort (); | |
9839 | offp = &ent->got.offset; | |
5bd4f169 | 9840 | } |
411e1bfb | 9841 | |
e717da7e AM |
9842 | got = ppc64_elf_tdata (input_bfd)->got; |
9843 | if (got == NULL) | |
9844 | abort (); | |
9845 | ||
411e1bfb AM |
9846 | /* The offset must always be a multiple of 8. We use the |
9847 | least significant bit to record whether we have already | |
9848 | processed this entry. */ | |
d881513a | 9849 | off = *offp; |
411e1bfb AM |
9850 | if ((off & 1) != 0) |
9851 | off &= ~1; | |
5bd4f169 AM |
9852 | else |
9853 | { | |
411e1bfb AM |
9854 | /* Generate relocs for the dynamic linker, except in |
9855 | the case of TLSLD where we'll use one entry per | |
9856 | module. */ | |
e717da7e AM |
9857 | asection *relgot = ppc64_elf_tdata (input_bfd)->relgot; |
9858 | ||
d881513a | 9859 | *offp = off | 1; |
4e795f50 AM |
9860 | if ((info->shared || indx != 0) |
9861 | && (h == NULL | |
039b3fef AM |
9862 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
9863 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 9864 | { |
e717da7e AM |
9865 | outrel.r_offset = (got->output_section->vma |
9866 | + got->output_offset | |
411e1bfb | 9867 | + off); |
81407a69 | 9868 | outrel.r_addend = rel->r_addend; |
d881513a | 9869 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 9870 | { |
411e1bfb | 9871 | outrel.r_addend = 0; |
e515b051 | 9872 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
9873 | if (tls_type == (TLS_TLS | TLS_GD)) |
9874 | { | |
e717da7e AM |
9875 | loc = relgot->contents; |
9876 | loc += (relgot->reloc_count++ | |
d881513a AM |
9877 | * sizeof (Elf64_External_Rela)); |
9878 | bfd_elf64_swap_reloca_out (output_bfd, | |
9879 | &outrel, loc); | |
e515b051 | 9880 | outrel.r_offset += 8; |
81407a69 | 9881 | outrel.r_addend = rel->r_addend; |
d881513a AM |
9882 | outrel.r_info |
9883 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 9884 | } |
411e1bfb | 9885 | } |
951fd09b | 9886 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 9887 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 9888 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
9889 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
9890 | else if (indx == 0) | |
81407a69 AM |
9891 | { |
9892 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
9893 | ||
9894 | /* Write the .got section contents for the sake | |
9895 | of prelink. */ | |
e717da7e | 9896 | loc = got->contents + off; |
23fbd6fa JJ |
9897 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
9898 | loc); | |
81407a69 | 9899 | } |
411e1bfb AM |
9900 | else |
9901 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
9902 | |
9903 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
9904 | { |
9905 | outrel.r_addend += relocation; | |
9906 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 9907 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 9908 | } |
e717da7e AM |
9909 | loc = relgot->contents; |
9910 | loc += (relgot->reloc_count++ | |
411e1bfb AM |
9911 | * sizeof (Elf64_External_Rela)); |
9912 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
9913 | } | |
9914 | ||
ad8e1ba5 | 9915 | /* Init the .got section contents here if we're not |
81407a69 | 9916 | emitting a reloc. */ |
d881513a | 9917 | else |
411e1bfb | 9918 | { |
d881513a | 9919 | relocation += rel->r_addend; |
7b609f53 AM |
9920 | if (tls_type == (TLS_TLS | TLS_LD)) |
9921 | relocation = 1; | |
9922 | else if (tls_type != 0) | |
411e1bfb | 9923 | { |
e1918d23 | 9924 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 9925 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 9926 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 9927 | |
7b609f53 AM |
9928 | if (tls_type == (TLS_TLS | TLS_GD)) |
9929 | { | |
9930 | bfd_put_64 (output_bfd, relocation, | |
e717da7e | 9931 | got->contents + off + 8); |
7b609f53 AM |
9932 | relocation = 1; |
9933 | } | |
411e1bfb | 9934 | } |
7b609f53 | 9935 | |
411e1bfb | 9936 | bfd_put_64 (output_bfd, relocation, |
e717da7e | 9937 | got->contents + off); |
5bd4f169 AM |
9938 | } |
9939 | } | |
9940 | ||
65f38f15 AM |
9941 | if (off >= (bfd_vma) -2) |
9942 | abort (); | |
9943 | ||
e717da7e | 9944 | relocation = got->output_offset + off; |
65f38f15 | 9945 | |
5bd4f169 | 9946 | /* TOC base (r2) is TOC start plus 0x8000. */ |
e717da7e | 9947 | addend = -TOC_BASE_OFF; |
5bd4f169 | 9948 | } |
65f38f15 AM |
9949 | break; |
9950 | ||
9951 | case R_PPC64_PLT16_HA: | |
9952 | case R_PPC64_PLT16_HI: | |
9953 | case R_PPC64_PLT16_LO: | |
9954 | case R_PPC64_PLT32: | |
9955 | case R_PPC64_PLT64: | |
9956 | /* Relocation is to the entry for this symbol in the | |
9957 | procedure linkage table. */ | |
9958 | ||
9959 | /* Resolve a PLT reloc against a local symbol directly, | |
9960 | without using the procedure linkage table. */ | |
9961 | if (h == NULL) | |
9962 | break; | |
9963 | ||
411e1bfb AM |
9964 | /* It's possible that we didn't make a PLT entry for this |
9965 | symbol. This happens when statically linking PIC code, | |
9966 | or when using -Bsymbolic. Go find a match if there is a | |
9967 | PLT entry. */ | |
4ce794b7 | 9968 | if (htab->plt != NULL) |
65f38f15 | 9969 | { |
411e1bfb | 9970 | struct plt_entry *ent; |
039b3fef | 9971 | for (ent = h->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
9972 | if (ent->addend == rel->r_addend |
9973 | && ent->plt.offset != (bfd_vma) -1) | |
9974 | { | |
4ce794b7 AM |
9975 | relocation = (htab->plt->output_section->vma |
9976 | + htab->plt->output_offset | |
411e1bfb AM |
9977 | + ent->plt.offset); |
9978 | unresolved_reloc = FALSE; | |
9979 | } | |
65f38f15 | 9980 | } |
65f38f15 | 9981 | break; |
5bd4f169 | 9982 | |
0b13192e AM |
9983 | case R_PPC64_TOC: |
9984 | /* Relocation value is TOC base. */ | |
9985 | relocation = TOCstart; | |
9986 | if (r_symndx == 0) | |
9987 | relocation += htab->stub_group[input_section->id].toc_off; | |
8517fae7 AM |
9988 | else if (unresolved_reloc) |
9989 | ; | |
9990 | else if (sec != NULL && sec->id <= htab->top_id) | |
0b13192e AM |
9991 | relocation += htab->stub_group[sec->id].toc_off; |
9992 | else | |
9993 | unresolved_reloc = TRUE; | |
9994 | goto dodyn2; | |
9995 | ||
5bd4f169 AM |
9996 | /* TOC16 relocs. We want the offset relative to the TOC base, |
9997 | which is the address of the start of the TOC plus 0x8000. | |
9998 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
9999 | in this order. */ | |
65f38f15 AM |
10000 | case R_PPC64_TOC16: |
10001 | case R_PPC64_TOC16_LO: | |
10002 | case R_PPC64_TOC16_HI: | |
10003 | case R_PPC64_TOC16_DS: | |
10004 | case R_PPC64_TOC16_LO_DS: | |
10005 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 10006 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
10007 | break; |
10008 | ||
10009 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
10010 | case R_PPC64_SECTOFF: |
10011 | case R_PPC64_SECTOFF_LO: | |
10012 | case R_PPC64_SECTOFF_HI: | |
10013 | case R_PPC64_SECTOFF_DS: | |
10014 | case R_PPC64_SECTOFF_LO_DS: | |
10015 | case R_PPC64_SECTOFF_HA: | |
4ce794b7 | 10016 | if (sec != NULL) |
65f38f15 | 10017 | addend -= sec->output_section->vma; |
5bd4f169 AM |
10018 | break; |
10019 | ||
721956f4 AM |
10020 | case R_PPC64_REL14: |
10021 | case R_PPC64_REL14_BRNTAKEN: | |
10022 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
10023 | case R_PPC64_REL24: |
10024 | break; | |
10025 | ||
411e1bfb AM |
10026 | case R_PPC64_TPREL16: |
10027 | case R_PPC64_TPREL16_LO: | |
10028 | case R_PPC64_TPREL16_HI: | |
10029 | case R_PPC64_TPREL16_HA: | |
10030 | case R_PPC64_TPREL16_DS: | |
10031 | case R_PPC64_TPREL16_LO_DS: | |
10032 | case R_PPC64_TPREL16_HIGHER: | |
10033 | case R_PPC64_TPREL16_HIGHERA: | |
10034 | case R_PPC64_TPREL16_HIGHEST: | |
10035 | case R_PPC64_TPREL16_HIGHESTA: | |
e1918d23 | 10036 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
10037 | if (info->shared) |
10038 | /* The TPREL16 relocs shouldn't really be used in shared | |
10039 | libs as they will result in DT_TEXTREL being set, but | |
10040 | support them anyway. */ | |
10041 | goto dodyn; | |
10042 | break; | |
10043 | ||
10044 | case R_PPC64_DTPREL16: | |
10045 | case R_PPC64_DTPREL16_LO: | |
10046 | case R_PPC64_DTPREL16_HI: | |
10047 | case R_PPC64_DTPREL16_HA: | |
10048 | case R_PPC64_DTPREL16_DS: | |
10049 | case R_PPC64_DTPREL16_LO_DS: | |
10050 | case R_PPC64_DTPREL16_HIGHER: | |
10051 | case R_PPC64_DTPREL16_HIGHERA: | |
10052 | case R_PPC64_DTPREL16_HIGHEST: | |
10053 | case R_PPC64_DTPREL16_HIGHESTA: | |
e1918d23 | 10054 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
10055 | break; |
10056 | ||
e515b051 AM |
10057 | case R_PPC64_DTPMOD64: |
10058 | relocation = 1; | |
10059 | addend = 0; | |
10060 | goto dodyn; | |
10061 | ||
411e1bfb | 10062 | case R_PPC64_TPREL64: |
e1918d23 | 10063 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
10064 | goto dodyn; |
10065 | ||
10066 | case R_PPC64_DTPREL64: | |
e1918d23 | 10067 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
10068 | /* Fall thru */ |
10069 | ||
65f38f15 AM |
10070 | /* Relocations that may need to be propagated if this is a |
10071 | dynamic object. */ | |
04c9666a | 10072 | case R_PPC64_REL30: |
65f38f15 AM |
10073 | case R_PPC64_REL32: |
10074 | case R_PPC64_REL64: | |
10075 | case R_PPC64_ADDR14: | |
10076 | case R_PPC64_ADDR14_BRNTAKEN: | |
10077 | case R_PPC64_ADDR14_BRTAKEN: | |
10078 | case R_PPC64_ADDR16: | |
10079 | case R_PPC64_ADDR16_DS: | |
10080 | case R_PPC64_ADDR16_HA: | |
10081 | case R_PPC64_ADDR16_HI: | |
10082 | case R_PPC64_ADDR16_HIGHER: | |
10083 | case R_PPC64_ADDR16_HIGHERA: | |
10084 | case R_PPC64_ADDR16_HIGHEST: | |
10085 | case R_PPC64_ADDR16_HIGHESTA: | |
10086 | case R_PPC64_ADDR16_LO: | |
10087 | case R_PPC64_ADDR16_LO_DS: | |
10088 | case R_PPC64_ADDR24: | |
65f38f15 AM |
10089 | case R_PPC64_ADDR32: |
10090 | case R_PPC64_ADDR64: | |
10091 | case R_PPC64_UADDR16: | |
10092 | case R_PPC64_UADDR32: | |
10093 | case R_PPC64_UADDR64: | |
ec338859 AM |
10094 | /* r_symndx will be zero only for relocs against symbols |
10095 | from removed linkonce sections, or sections discarded by | |
10096 | a linker script. */ | |
411e1bfb | 10097 | dodyn: |
5d1634d7 AM |
10098 | if (r_symndx == 0) |
10099 | break; | |
10100 | /* Fall thru. */ | |
10101 | ||
0b13192e | 10102 | dodyn2: |
5d1634d7 | 10103 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
10104 | break; |
10105 | ||
41bd81ab AM |
10106 | if (NO_OPD_RELOCS && is_opd) |
10107 | break; | |
10108 | ||
65f38f15 | 10109 | if ((info->shared |
4e795f50 | 10110 | && (h == NULL |
039b3fef AM |
10111 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
10112 | || h->elf.root.type != bfd_link_hash_undefweak) | |
411e1bfb | 10113 | && (MUST_BE_DYN_RELOC (r_type) |
039b3fef | 10114 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
f4656909 AM |
10115 | || (ELIMINATE_COPY_RELOCS |
10116 | && !info->shared | |
65f38f15 | 10117 | && h != NULL |
039b3fef | 10118 | && h->elf.dynindx != -1 |
f5385ebf AM |
10119 | && !h->elf.non_got_ref |
10120 | && h->elf.def_dynamic | |
10121 | && !h->elf.def_regular)) | |
65f38f15 AM |
10122 | { |
10123 | Elf_Internal_Rela outrel; | |
b34976b6 | 10124 | bfd_boolean skip, relocate; |
65f38f15 | 10125 | asection *sreloc; |
947216bf | 10126 | bfd_byte *loc; |
1cf1f670 | 10127 | bfd_vma out_off; |
65f38f15 AM |
10128 | |
10129 | /* When generating a dynamic object, these relocations | |
10130 | are copied into the output file to be resolved at run | |
10131 | time. */ | |
10132 | ||
b34976b6 AM |
10133 | skip = FALSE; |
10134 | relocate = FALSE; | |
65f38f15 | 10135 | |
1cf1f670 AM |
10136 | out_off = _bfd_elf_section_offset (output_bfd, info, |
10137 | input_section, rel->r_offset); | |
10138 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 10139 | skip = TRUE; |
1cf1f670 | 10140 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 10141 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
10142 | out_off += (input_section->output_section->vma |
10143 | + input_section->output_offset); | |
10144 | outrel.r_offset = out_off; | |
411e1bfb | 10145 | outrel.r_addend = rel->r_addend; |
65f38f15 | 10146 | |
1cf1f670 AM |
10147 | /* Optimize unaligned reloc use. */ |
10148 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
10149 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
10150 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
10151 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
10152 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
10153 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
10154 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
10155 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
10156 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
10157 | ||
65f38f15 | 10158 | if (skip) |
0bb2d96a | 10159 | memset (&outrel, 0, sizeof outrel); |
039b3fef | 10160 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
0b13192e AM |
10161 | && !is_opd |
10162 | && r_type != R_PPC64_TOC) | |
039b3fef | 10163 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); |
65f38f15 AM |
10164 | else |
10165 | { | |
41bd81ab AM |
10166 | /* This symbol is local, or marked to become local, |
10167 | or this is an opd section reloc which must point | |
10168 | at a local function. */ | |
65f38f15 | 10169 | outrel.r_addend += relocation; |
e86ce104 | 10170 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 10171 | { |
3fad3c7c | 10172 | if (is_opd && h != NULL) |
afbe61cf AM |
10173 | { |
10174 | /* Lie about opd entries. This case occurs | |
10175 | when building shared libraries and we | |
10176 | reference a function in another shared | |
3fad3c7c AM |
10177 | lib. The same thing happens for a weak |
10178 | definition in an application that's | |
10179 | overridden by a strong definition in a | |
10180 | shared lib. (I believe this is a generic | |
10181 | bug in binutils handling of weak syms.) | |
10182 | In these cases we won't use the opd | |
1e2f5b6e | 10183 | entry in this lib. */ |
b34976b6 | 10184 | unresolved_reloc = FALSE; |
afbe61cf | 10185 | } |
65f38f15 | 10186 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
10187 | |
10188 | /* We need to relocate .opd contents for ld.so. | |
10189 | Prelink also wants simple and consistent rules | |
10190 | for relocs. This make all RELATIVE relocs have | |
10191 | *r_offset equal to r_addend. */ | |
10192 | relocate = TRUE; | |
65f38f15 AM |
10193 | } |
10194 | else | |
10195 | { | |
10196 | long indx = 0; | |
10197 | ||
41bd81ab | 10198 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
10199 | ; |
10200 | else if (sec == NULL || sec->owner == NULL) | |
10201 | { | |
10202 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 10203 | return FALSE; |
65f38f15 AM |
10204 | } |
10205 | else | |
10206 | { | |
10207 | asection *osec; | |
10208 | ||
10209 | osec = sec->output_section; | |
10210 | indx = elf_section_data (osec)->dynindx; | |
10211 | ||
10212 | /* We are turning this relocation into one | |
10213 | against a section symbol, so subtract out | |
10214 | the output section's address but not the | |
10215 | offset of the input section in the output | |
10216 | section. */ | |
10217 | outrel.r_addend -= osec->vma; | |
10218 | } | |
10219 | ||
10220 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
10221 | } | |
10222 | } | |
10223 | ||
10224 | sreloc = elf_section_data (input_section)->sreloc; | |
10225 | if (sreloc == NULL) | |
10226 | abort (); | |
10227 | ||
947216bf AM |
10228 | loc = sreloc->contents; |
10229 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
10230 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
10231 | ||
10232 | /* If this reloc is against an external symbol, it will | |
10233 | be computed at runtime, so there's no need to do | |
81407a69 AM |
10234 | anything now. However, for the sake of prelink ensure |
10235 | that the section contents are a known value. */ | |
65f38f15 | 10236 | if (! relocate) |
81407a69 AM |
10237 | { |
10238 | unresolved_reloc = FALSE; | |
10239 | /* The value chosen here is quite arbitrary as ld.so | |
10240 | ignores section contents except for the special | |
10241 | case of .opd where the contents might be accessed | |
10242 | before relocation. Choose zero, as that won't | |
10243 | cause reloc overflow. */ | |
10244 | relocation = 0; | |
10245 | addend = 0; | |
10246 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
10247 | to improve backward compatibility with older | |
10248 | versions of ld. */ | |
10249 | if (r_type == R_PPC64_ADDR64) | |
10250 | addend = outrel.r_addend; | |
10251 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
4ce794b7 | 10252 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
000732f7 AM |
10253 | addend = (input_section->output_section->vma |
10254 | + input_section->output_offset | |
10255 | + rel->r_offset); | |
81407a69 | 10256 | } |
65f38f15 | 10257 | } |
5bd4f169 AM |
10258 | break; |
10259 | ||
65f38f15 AM |
10260 | case R_PPC64_COPY: |
10261 | case R_PPC64_GLOB_DAT: | |
10262 | case R_PPC64_JMP_SLOT: | |
10263 | case R_PPC64_RELATIVE: | |
10264 | /* We shouldn't ever see these dynamic relocs in relocatable | |
10265 | files. */ | |
ae9a127f | 10266 | /* Fall through. */ |
65f38f15 AM |
10267 | |
10268 | case R_PPC64_PLTGOT16: | |
10269 | case R_PPC64_PLTGOT16_DS: | |
10270 | case R_PPC64_PLTGOT16_HA: | |
10271 | case R_PPC64_PLTGOT16_HI: | |
10272 | case R_PPC64_PLTGOT16_LO: | |
10273 | case R_PPC64_PLTGOT16_LO_DS: | |
10274 | case R_PPC64_PLTREL32: | |
10275 | case R_PPC64_PLTREL64: | |
10276 | /* These ones haven't been implemented yet. */ | |
10277 | ||
10278 | (*_bfd_error_handler) | |
d003868e AM |
10279 | (_("%B: relocation %s is not supported for symbol %s."), |
10280 | input_bfd, | |
4ce794b7 | 10281 | ppc64_elf_howto_table[r_type]->name, sym_name); |
5bd4f169 AM |
10282 | |
10283 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 10284 | ret = FALSE; |
5bd4f169 | 10285 | continue; |
65f38f15 | 10286 | } |
5bd4f169 | 10287 | |
65f38f15 AM |
10288 | /* Do any further special processing. */ |
10289 | switch (r_type) | |
10290 | { | |
10291 | default: | |
10292 | break; | |
10293 | ||
10294 | case R_PPC64_ADDR16_HA: | |
10295 | case R_PPC64_ADDR16_HIGHERA: | |
10296 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
10297 | case R_PPC64_GOT16_HA: |
10298 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
10299 | case R_PPC64_PLT16_HA: |
10300 | case R_PPC64_TOC16_HA: | |
10301 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
10302 | case R_PPC64_TPREL16_HA: |
10303 | case R_PPC64_DTPREL16_HA: | |
10304 | case R_PPC64_GOT_TLSGD16_HA: | |
10305 | case R_PPC64_GOT_TLSLD16_HA: | |
10306 | case R_PPC64_GOT_TPREL16_HA: | |
10307 | case R_PPC64_GOT_DTPREL16_HA: | |
10308 | case R_PPC64_TPREL16_HIGHER: | |
10309 | case R_PPC64_TPREL16_HIGHERA: | |
10310 | case R_PPC64_TPREL16_HIGHEST: | |
10311 | case R_PPC64_TPREL16_HIGHESTA: | |
10312 | case R_PPC64_DTPREL16_HIGHER: | |
10313 | case R_PPC64_DTPREL16_HIGHERA: | |
10314 | case R_PPC64_DTPREL16_HIGHEST: | |
10315 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
10316 | /* It's just possible that this symbol is a weak symbol |
10317 | that's not actually defined anywhere. In that case, | |
10318 | 'sec' would be NULL, and we should leave the symbol | |
10319 | alone (it will be set to zero elsewhere in the link). */ | |
10320 | if (sec != NULL) | |
e515b051 AM |
10321 | /* Add 0x10000 if sign bit in 0:15 is set. |
10322 | Bits 0:15 are not used. */ | |
10323 | addend += 0x8000; | |
65f38f15 AM |
10324 | break; |
10325 | ||
10326 | case R_PPC64_ADDR16_DS: | |
10327 | case R_PPC64_ADDR16_LO_DS: | |
10328 | case R_PPC64_GOT16_DS: | |
10329 | case R_PPC64_GOT16_LO_DS: | |
10330 | case R_PPC64_PLT16_LO_DS: | |
10331 | case R_PPC64_SECTOFF_DS: | |
10332 | case R_PPC64_SECTOFF_LO_DS: | |
10333 | case R_PPC64_TOC16_DS: | |
10334 | case R_PPC64_TOC16_LO_DS: | |
10335 | case R_PPC64_PLTGOT16_DS: | |
10336 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
10337 | case R_PPC64_GOT_TPREL16_DS: |
10338 | case R_PPC64_GOT_TPREL16_LO_DS: | |
10339 | case R_PPC64_GOT_DTPREL16_DS: | |
10340 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
10341 | case R_PPC64_TPREL16_DS: | |
10342 | case R_PPC64_TPREL16_LO_DS: | |
10343 | case R_PPC64_DTPREL16_DS: | |
10344 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
10345 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
10346 | mask = 3; | |
10347 | /* If this reloc is against an lq insn, then the value must be | |
10348 | a multiple of 16. This is somewhat of a hack, but the | |
10349 | "correct" way to do this by defining _DQ forms of all the | |
10350 | _DS relocs bloats all reloc switches in this file. It | |
10351 | doesn't seem to make much sense to use any of these relocs | |
10352 | in data, so testing the insn should be safe. */ | |
494dac0c | 10353 | if ((insn & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
10354 | mask = 15; |
10355 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
10356 | { |
10357 | (*_bfd_error_handler) | |
d003868e AM |
10358 | (_("%B: error: relocation %s not a multiple of %d"), |
10359 | input_bfd, | |
4ce794b7 | 10360 | ppc64_elf_howto_table[r_type]->name, |
adadcc0c | 10361 | mask + 1); |
65f38f15 | 10362 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 10363 | ret = FALSE; |
65f38f15 AM |
10364 | continue; |
10365 | } | |
10366 | break; | |
5bd4f169 AM |
10367 | } |
10368 | ||
239e1f3a AM |
10369 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
10370 | because such sections are not SEC_ALLOC and thus ld.so will | |
10371 | not process them. */ | |
65f38f15 | 10372 | if (unresolved_reloc |
239e1f3a | 10373 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 10374 | && h->elf.def_dynamic)) |
9c07fe7c AM |
10375 | { |
10376 | (*_bfd_error_handler) | |
d003868e AM |
10377 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
10378 | input_bfd, | |
10379 | input_section, | |
9c07fe7c | 10380 | (long) rel->r_offset, |
7b609f53 | 10381 | ppc64_elf_howto_table[(int) r_type]->name, |
039b3fef | 10382 | h->elf.root.root.string); |
b34976b6 | 10383 | ret = FALSE; |
9c07fe7c | 10384 | } |
5bd4f169 | 10385 | |
65f38f15 | 10386 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
10387 | input_bfd, |
10388 | input_section, | |
10389 | contents, | |
411e1bfb | 10390 | rel->r_offset, |
5bd4f169 AM |
10391 | relocation, |
10392 | addend); | |
10393 | ||
ef60b7ff | 10394 | if (r != bfd_reloc_ok) |
5bd4f169 | 10395 | { |
cd27b276 AM |
10396 | if (sym_name == NULL) |
10397 | sym_name = "(null)"; | |
10398 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 10399 | { |
cd27b276 AM |
10400 | if (warned) |
10401 | continue; | |
10402 | if (h != NULL | |
039b3fef | 10403 | && h->elf.root.type == bfd_link_hash_undefweak |
4ce794b7 | 10404 | && ppc64_elf_howto_table[r_type]->pc_relative) |
5bd4f169 AM |
10405 | { |
10406 | /* Assume this is a call protected by other code that | |
10407 | detects the symbol is undefined. If this is the case, | |
10408 | we can safely ignore the overflow. If not, the | |
10409 | program is hosed anyway, and a little warning isn't | |
10410 | going to help. */ | |
10411 | ||
10412 | continue; | |
10413 | } | |
10414 | ||
ef60b7ff | 10415 | if (!((*info->callbacks->reloc_overflow) |
dfeffb9f L |
10416 | (info, (h ? &h->elf.root : NULL), sym_name, |
10417 | ppc64_elf_howto_table[r_type]->name, | |
411e1bfb | 10418 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 10419 | return FALSE; |
ef60b7ff AM |
10420 | } |
10421 | else | |
10422 | { | |
10423 | (*_bfd_error_handler) | |
d003868e AM |
10424 | (_("%B(%A+0x%lx): %s reloc against `%s': error %d"), |
10425 | input_bfd, | |
10426 | input_section, | |
7b609f53 | 10427 | (long) rel->r_offset, |
4ce794b7 | 10428 | ppc64_elf_howto_table[r_type]->name, |
7b609f53 AM |
10429 | sym_name, |
10430 | (int) r); | |
b34976b6 | 10431 | ret = FALSE; |
ef60b7ff | 10432 | } |
5bd4f169 | 10433 | } |
5bd4f169 AM |
10434 | } |
10435 | ||
645ea6a9 AM |
10436 | /* If we're emitting relocations, then shortly after this function |
10437 | returns, reloc offsets and addends for this section will be | |
10438 | adjusted. Worse, reloc symbol indices will be for the output | |
8860955f AM |
10439 | file rather than the input. Save a copy of the relocs for |
10440 | opd_entry_value. */ | |
10441 | if (is_opd && info->emitrelocations) | |
10442 | { | |
10443 | bfd_size_type amt; | |
10444 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
10445 | rel = bfd_alloc (input_bfd, amt); | |
10446 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd_relocs == NULL); | |
10447 | ppc64_elf_tdata (input_bfd)->opd_relocs = rel; | |
10448 | if (rel == NULL) | |
10449 | return FALSE; | |
10450 | memcpy (rel, relocs, amt); | |
10451 | } | |
5bd4f169 AM |
10452 | return ret; |
10453 | } | |
10454 | ||
754021d0 AM |
10455 | /* Adjust the value of any local symbols in opd sections. */ |
10456 | ||
10457 | static bfd_boolean | |
10458 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, | |
10459 | const char *name ATTRIBUTE_UNUSED, | |
10460 | Elf_Internal_Sym *elfsym, | |
10461 | asection *input_sec, | |
10462 | struct elf_link_hash_entry *h) | |
10463 | { | |
4025353c | 10464 | long *opd_adjust, adjust; |
754021d0 AM |
10465 | bfd_vma value; |
10466 | ||
4025353c AM |
10467 | if (h != NULL) |
10468 | return TRUE; | |
10469 | ||
10470 | opd_adjust = get_opd_info (input_sec); | |
10471 | if (opd_adjust == NULL) | |
754021d0 AM |
10472 | return TRUE; |
10473 | ||
10474 | value = elfsym->st_value - input_sec->output_offset; | |
10475 | if (!info->relocatable) | |
10476 | value -= input_sec->output_section->vma; | |
10477 | ||
3f764659 | 10478 | adjust = opd_adjust[value / 8]; |
4025353c AM |
10479 | if (adjust == -1) |
10480 | elfsym->st_value = 0; | |
10481 | else | |
10482 | elfsym->st_value += adjust; | |
754021d0 AM |
10483 | return TRUE; |
10484 | } | |
10485 | ||
5bd4f169 AM |
10486 | /* Finish up dynamic symbol handling. We set the contents of various |
10487 | dynamic sections here. */ | |
10488 | ||
b34976b6 | 10489 | static bfd_boolean |
4ce794b7 AM |
10490 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
10491 | struct bfd_link_info *info, | |
10492 | struct elf_link_hash_entry *h, | |
10493 | Elf_Internal_Sym *sym) | |
5bd4f169 | 10494 | { |
65f38f15 | 10495 | struct ppc_link_hash_table *htab; |
5bd4f169 | 10496 | bfd *dynobj; |
8387904d AM |
10497 | struct plt_entry *ent; |
10498 | Elf_Internal_Rela rela; | |
10499 | bfd_byte *loc; | |
5bd4f169 | 10500 | |
65f38f15 AM |
10501 | htab = ppc_hash_table (info); |
10502 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 10503 | |
8387904d AM |
10504 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
10505 | if (ent->plt.offset != (bfd_vma) -1) | |
10506 | { | |
10507 | /* This symbol has an entry in the procedure linkage | |
10508 | table. Set it up. */ | |
10509 | ||
10510 | if (htab->plt == NULL | |
10511 | || htab->relplt == NULL | |
10512 | || htab->glink == NULL) | |
10513 | abort (); | |
10514 | ||
10515 | /* Create a JMP_SLOT reloc to inform the dynamic linker to | |
10516 | fill in the PLT entry. */ | |
10517 | rela.r_offset = (htab->plt->output_section->vma | |
10518 | + htab->plt->output_offset | |
10519 | + ent->plt.offset); | |
10520 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
10521 | rela.r_addend = ent->addend; | |
10522 | ||
10523 | loc = htab->relplt->contents; | |
10524 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
10525 | * sizeof (Elf64_External_Rela)); | |
10526 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
10527 | } | |
5bd4f169 | 10528 | |
f5385ebf | 10529 | if (h->needs_copy) |
5bd4f169 | 10530 | { |
5bd4f169 | 10531 | Elf_Internal_Rela rela; |
947216bf | 10532 | bfd_byte *loc; |
5bd4f169 | 10533 | |
65f38f15 | 10534 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 10535 | |
65f38f15 AM |
10536 | if (h->dynindx == -1 |
10537 | || (h->root.type != bfd_link_hash_defined | |
10538 | && h->root.type != bfd_link_hash_defweak) | |
4ce794b7 | 10539 | || htab->relbss == NULL) |
65f38f15 | 10540 | abort (); |
5bd4f169 AM |
10541 | |
10542 | rela.r_offset = (h->root.u.def.value | |
10543 | + h->root.u.def.section->output_section->vma | |
10544 | + h->root.u.def.section->output_offset); | |
10545 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
10546 | rela.r_addend = 0; | |
4ce794b7 AM |
10547 | loc = htab->relbss->contents; |
10548 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 10549 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
10550 | } |
10551 | ||
5bd4f169 AM |
10552 | /* Mark some specially defined symbols as absolute. */ |
10553 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
10554 | sym->st_shndx = SHN_ABS; | |
10555 | ||
b34976b6 | 10556 | return TRUE; |
5bd4f169 AM |
10557 | } |
10558 | ||
65f38f15 AM |
10559 | /* Used to decide how to sort relocs in an optimal manner for the |
10560 | dynamic linker, before writing them out. */ | |
10561 | ||
10562 | static enum elf_reloc_type_class | |
4ce794b7 | 10563 | ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
65f38f15 | 10564 | { |
04c9666a | 10565 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 10566 | |
4ce794b7 | 10567 | r_type = ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 10568 | switch (r_type) |
65f38f15 AM |
10569 | { |
10570 | case R_PPC64_RELATIVE: | |
10571 | return reloc_class_relative; | |
10572 | case R_PPC64_JMP_SLOT: | |
10573 | return reloc_class_plt; | |
10574 | case R_PPC64_COPY: | |
10575 | return reloc_class_copy; | |
10576 | default: | |
10577 | return reloc_class_normal; | |
10578 | } | |
10579 | } | |
10580 | ||
5bd4f169 AM |
10581 | /* Finish up the dynamic sections. */ |
10582 | ||
b34976b6 | 10583 | static bfd_boolean |
4ce794b7 AM |
10584 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
10585 | struct bfd_link_info *info) | |
5bd4f169 | 10586 | { |
65f38f15 AM |
10587 | struct ppc_link_hash_table *htab; |
10588 | bfd *dynobj; | |
5bd4f169 | 10589 | asection *sdyn; |
5bd4f169 | 10590 | |
65f38f15 AM |
10591 | htab = ppc_hash_table (info); |
10592 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
10593 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
10594 | ||
65f38f15 | 10595 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 10596 | { |
5bd4f169 AM |
10597 | Elf64_External_Dyn *dyncon, *dynconend; |
10598 | ||
4ce794b7 | 10599 | if (sdyn == NULL || htab->got == NULL) |
65f38f15 | 10600 | abort (); |
5bd4f169 AM |
10601 | |
10602 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 10603 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
5bd4f169 AM |
10604 | for (; dyncon < dynconend; dyncon++) |
10605 | { | |
10606 | Elf_Internal_Dyn dyn; | |
19397422 | 10607 | asection *s; |
5bd4f169 AM |
10608 | |
10609 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
10610 | ||
10611 | switch (dyn.d_tag) | |
10612 | { | |
65f38f15 AM |
10613 | default: |
10614 | continue; | |
5bd4f169 | 10615 | |
5d1634d7 | 10616 | case DT_PPC64_GLINK: |
4ce794b7 | 10617 | s = htab->glink; |
6348e046 | 10618 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
ad8e1ba5 AM |
10619 | /* We stupidly defined DT_PPC64_GLINK to be the start |
10620 | of glink rather than the first entry point, which is | |
10621 | what ld.so needs, and now have a bigger stub to | |
10622 | support automatic multiple TOCs. */ | |
10623 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
10624 | break; |
10625 | ||
19397422 AM |
10626 | case DT_PPC64_OPD: |
10627 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
10628 | if (s == NULL) |
10629 | continue; | |
10630 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
10631 | break; |
10632 | ||
10633 | case DT_PPC64_OPDSZ: | |
10634 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
10635 | if (s == NULL) |
10636 | continue; | |
eea6121a | 10637 | dyn.d_un.d_val = s->size; |
19397422 AM |
10638 | break; |
10639 | ||
65f38f15 | 10640 | case DT_PLTGOT: |
4ce794b7 | 10641 | s = htab->plt; |
6348e046 | 10642 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 AM |
10643 | break; |
10644 | ||
10645 | case DT_JMPREL: | |
4ce794b7 | 10646 | s = htab->relplt; |
6348e046 | 10647 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 | 10648 | break; |
5bd4f169 | 10649 | |
65f38f15 | 10650 | case DT_PLTRELSZ: |
eea6121a | 10651 | dyn.d_un.d_val = htab->relplt->size; |
5d1634d7 AM |
10652 | break; |
10653 | ||
10654 | case DT_RELASZ: | |
10655 | /* Don't count procedure linkage table relocs in the | |
10656 | overall reloc count. */ | |
4ce794b7 | 10657 | s = htab->relplt; |
6348e046 AM |
10658 | if (s == NULL) |
10659 | continue; | |
eea6121a | 10660 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
10661 | break; |
10662 | ||
10663 | case DT_RELA: | |
10664 | /* We may not be using the standard ELF linker script. | |
10665 | If .rela.plt is the first .rela section, we adjust | |
10666 | DT_RELA to not include it. */ | |
4ce794b7 | 10667 | s = htab->relplt; |
6348e046 AM |
10668 | if (s == NULL) |
10669 | continue; | |
10670 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
10671 | continue; | |
eea6121a | 10672 | dyn.d_un.d_ptr += s->size; |
65f38f15 | 10673 | break; |
5bd4f169 | 10674 | } |
5bd4f169 | 10675 | |
65f38f15 | 10676 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 10677 | } |
5bd4f169 AM |
10678 | } |
10679 | ||
eea6121a | 10680 | if (htab->got != NULL && htab->got->size != 0) |
5d1634d7 AM |
10681 | { |
10682 | /* Fill in the first entry in the global offset table. | |
10683 | We use it to hold the link-time TOCbase. */ | |
10684 | bfd_put_64 (output_bfd, | |
60ee0d4a | 10685 | elf_gp (output_bfd) + TOC_BASE_OFF, |
4ce794b7 | 10686 | htab->got->contents); |
5d1634d7 AM |
10687 | |
10688 | /* Set .got entry size. */ | |
4ce794b7 | 10689 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
5d1634d7 AM |
10690 | } |
10691 | ||
eea6121a | 10692 | if (htab->plt != NULL && htab->plt->size != 0) |
5d1634d7 AM |
10693 | { |
10694 | /* Set .plt entry size. */ | |
4ce794b7 | 10695 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
5d1634d7 AM |
10696 | = PLT_ENTRY_SIZE; |
10697 | } | |
10698 | ||
e717da7e | 10699 | /* We need to handle writing out multiple GOT sections ourselves, |
7b53ace3 AM |
10700 | since we didn't add them to DYNOBJ. We know dynobj is the first |
10701 | bfd. */ | |
e717da7e AM |
10702 | while ((dynobj = dynobj->link_next) != NULL) |
10703 | { | |
10704 | asection *s; | |
7b53ace3 | 10705 | |
ee75fd95 | 10706 | if (!is_ppc64_elf_target (dynobj->xvec)) |
7b53ace3 AM |
10707 | continue; |
10708 | ||
e717da7e AM |
10709 | s = ppc64_elf_tdata (dynobj)->got; |
10710 | if (s != NULL | |
eea6121a | 10711 | && s->size != 0 |
e717da7e AM |
10712 | && s->output_section != bfd_abs_section_ptr |
10713 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
10714 | s->contents, s->output_offset, | |
eea6121a | 10715 | s->size)) |
e717da7e AM |
10716 | return FALSE; |
10717 | s = ppc64_elf_tdata (dynobj)->relgot; | |
10718 | if (s != NULL | |
eea6121a | 10719 | && s->size != 0 |
e717da7e AM |
10720 | && s->output_section != bfd_abs_section_ptr |
10721 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
10722 | s->contents, s->output_offset, | |
eea6121a | 10723 | s->size)) |
e717da7e AM |
10724 | return FALSE; |
10725 | } | |
f6c52c13 | 10726 | |
b34976b6 | 10727 | return TRUE; |
5bd4f169 AM |
10728 | } |
10729 | ||
5bd4f169 | 10730 | #include "elf64-target.h" |