Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
86bbe32f | 2 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
4 | based on elf32-ppc.c by Ian Lance Taylor. | |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
5bd4f169 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
5bd4f169 | 17 | |
4ce794b7 AM |
18 | You should have received a copy of the GNU General Public License along |
19 | with this program; if not, write to the Free Software Foundation, Inc., | |
20 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
5bd4f169 | 21 | |
4ce794b7 AM |
22 | /* The 64-bit PowerPC ELF ABI may be found at |
23 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
24 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
5bd4f169 AM |
25 | |
26 | #include "bfd.h" | |
27 | #include "sysdep.h" | |
28 | #include "bfdlink.h" | |
29 | #include "libbfd.h" | |
30 | #include "elf-bfd.h" | |
04c9666a | 31 | #include "elf/ppc64.h" |
5d1634d7 | 32 | #include "elf64-ppc.h" |
5bd4f169 | 33 | |
805fc799 | 34 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
4ce794b7 | 35 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 36 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
4ce794b7 | 37 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 40 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
4ce794b7 | 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5bd4f169 AM |
50 | |
51 | ||
ad8e1ba5 AM |
52 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
53 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
54 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
55 | #define TARGET_BIG_NAME "elf64-powerpc" | |
56 | #define ELF_ARCH bfd_arch_powerpc | |
57 | #define ELF_MACHINE_CODE EM_PPC64 | |
58 | #define ELF_MAXPAGESIZE 0x10000 | |
59 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
60 | ||
61 | #define elf_backend_want_got_sym 0 | |
62 | #define elf_backend_want_plt_sym 0 | |
63 | #define elf_backend_plt_alignment 3 | |
64 | #define elf_backend_plt_not_loaded 1 | |
65 | #define elf_backend_got_symbol_offset 0 | |
66 | #define elf_backend_got_header_size 8 | |
67 | #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE | |
68 | #define elf_backend_can_gc_sections 1 | |
69 | #define elf_backend_can_refcount 1 | |
70 | #define elf_backend_rela_normal 1 | |
71 | ||
e717da7e | 72 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
ad8e1ba5 AM |
73 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
74 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
75 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
76 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
77 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
78 | ||
79 | #define elf_backend_object_p ppc64_elf_object_p | |
80 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections | |
81 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
82 | #define elf_backend_check_relocs ppc64_elf_check_relocs | |
83 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook | |
84 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
85 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
86 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
87 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
88 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
89 | #define elf_backend_relocate_section ppc64_elf_relocate_section | |
90 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
91 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
92 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
2f89ff8d | 93 | #define elf_backend_special_sections ppc64_elf_special_sections |
ad8e1ba5 | 94 | |
5bd4f169 AM |
95 | /* The name of the dynamic interpreter. This is put in the .interp |
96 | section. */ | |
97 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
98 | ||
99 | /* The size in bytes of an entry in the procedure linkage table. */ | |
100 | #define PLT_ENTRY_SIZE 24 | |
101 | ||
102 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 103 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
104 | |
105 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
106 | #define TOC_BASE_OFF 0x8000 |
107 | ||
108 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
109 | #define TP_OFFSET 0x7000 | |
110 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 111 | |
ad8e1ba5 AM |
112 | /* .plt call stub instructions. The normal stub is like this, but |
113 | sometimes the .plt entry crosses a 64k boundary and we need to | |
114 | insert an addis to adjust r12. */ | |
115 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
116 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
117 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
118 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
119 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
120 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
121 | /* ld %r11,xxx+16@l(%r12) */ | |
122 | #define BCTR 0x4e800420 /* bctr */ | |
123 | ||
5d1634d7 | 124 | |
ad8e1ba5 AM |
125 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
126 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
127 | ||
128 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
129 | ||
130 | /* glink call stub instructions. We enter with the index in R0, and the | |
131 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
132 | #define GLINK_CALL_STUB_SIZE (16*4) | |
133 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
134 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
135 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
136 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
137 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
138 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
139 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
140 | /* sub %r12,%r12,%r11 */ | |
141 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
142 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
143 | /* ld %r11,xxx@l(%r12) */ | |
144 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
145 | /* ld %r2,8(%r12) */ | |
146 | /* mtctr %r11 */ | |
147 | /* ld %r11,16(%r12) */ | |
148 | /* bctr */ | |
5d1634d7 AM |
149 | |
150 | /* Pad with this. */ | |
151 | #define NOP 0x60000000 | |
152 | ||
721956f4 AM |
153 | /* Some other nops. */ |
154 | #define CROR_151515 0x4def7b82 | |
155 | #define CROR_313131 0x4ffffb82 | |
156 | ||
cedb70c5 | 157 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
158 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
159 | #define B_DOT 0x48000000 /* b . */ | |
160 | ||
161 | /* After that, we need two instructions to load the index, followed by | |
162 | a branch. */ | |
163 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 164 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 165 | |
82bd7b59 AM |
166 | /* Instructions to save and restore floating point regs. */ |
167 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ | |
168 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
169 | #define BLR 0x4e800020 /* blr */ | |
170 | ||
41bd81ab AM |
171 | /* Since .opd is an array of descriptors and each entry will end up |
172 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
173 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 174 | relocate .opd without reloc entries. */ |
41bd81ab AM |
175 | #ifndef NO_OPD_RELOCS |
176 | #define NO_OPD_RELOCS 0 | |
177 | #endif | |
5bd4f169 | 178 | \f |
f5e87a1d | 179 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 180 | |
5bd4f169 | 181 | /* Relocation HOWTO's. */ |
04c9666a | 182 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
183 | |
184 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
185 | /* This reloc does nothing. */ | |
186 | HOWTO (R_PPC64_NONE, /* type */ | |
187 | 0, /* rightshift */ | |
411e1bfb AM |
188 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
189 | 32, /* bitsize */ | |
b34976b6 | 190 | FALSE, /* pc_relative */ |
5bd4f169 | 191 | 0, /* bitpos */ |
f5e87a1d | 192 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
193 | bfd_elf_generic_reloc, /* special_function */ |
194 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 195 | FALSE, /* partial_inplace */ |
d006db6c | 196 | 0, /* src_mask */ |
5bd4f169 | 197 | 0, /* dst_mask */ |
b34976b6 | 198 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
199 | |
200 | /* A standard 32 bit relocation. */ | |
201 | HOWTO (R_PPC64_ADDR32, /* type */ | |
202 | 0, /* rightshift */ | |
203 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
204 | 32, /* bitsize */ | |
b34976b6 | 205 | FALSE, /* pc_relative */ |
5bd4f169 AM |
206 | 0, /* bitpos */ |
207 | complain_overflow_bitfield, /* complain_on_overflow */ | |
208 | bfd_elf_generic_reloc, /* special_function */ | |
209 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 210 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
211 | 0, /* src_mask */ |
212 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 213 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
214 | |
215 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
216 | FIXME: we don't check that, we just clear them. */ | |
217 | HOWTO (R_PPC64_ADDR24, /* type */ | |
218 | 0, /* rightshift */ | |
219 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
220 | 26, /* bitsize */ | |
b34976b6 | 221 | FALSE, /* pc_relative */ |
5bd4f169 AM |
222 | 0, /* bitpos */ |
223 | complain_overflow_bitfield, /* complain_on_overflow */ | |
224 | bfd_elf_generic_reloc, /* special_function */ | |
225 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 226 | FALSE, /* partial_inplace */ |
d006db6c | 227 | 0, /* src_mask */ |
f5e87a1d | 228 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 229 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
230 | |
231 | /* A standard 16 bit relocation. */ | |
232 | HOWTO (R_PPC64_ADDR16, /* type */ | |
233 | 0, /* rightshift */ | |
234 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
235 | 16, /* bitsize */ | |
b34976b6 | 236 | FALSE, /* pc_relative */ |
5bd4f169 AM |
237 | 0, /* bitpos */ |
238 | complain_overflow_bitfield, /* complain_on_overflow */ | |
239 | bfd_elf_generic_reloc, /* special_function */ | |
240 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 241 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
242 | 0, /* src_mask */ |
243 | 0xffff, /* dst_mask */ | |
b34976b6 | 244 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
245 | |
246 | /* A 16 bit relocation without overflow. */ | |
247 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 16, /* bitsize */ | |
b34976b6 | 251 | FALSE, /* pc_relative */ |
5bd4f169 AM |
252 | 0, /* bitpos */ |
253 | complain_overflow_dont,/* complain_on_overflow */ | |
254 | bfd_elf_generic_reloc, /* special_function */ | |
255 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 256 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
257 | 0, /* src_mask */ |
258 | 0xffff, /* dst_mask */ | |
b34976b6 | 259 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
260 | |
261 | /* Bits 16-31 of an address. */ | |
262 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
263 | 16, /* rightshift */ | |
264 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 16, /* bitsize */ | |
b34976b6 | 266 | FALSE, /* pc_relative */ |
5bd4f169 AM |
267 | 0, /* bitpos */ |
268 | complain_overflow_dont, /* complain_on_overflow */ | |
269 | bfd_elf_generic_reloc, /* special_function */ | |
270 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 271 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
272 | 0, /* src_mask */ |
273 | 0xffff, /* dst_mask */ | |
b34976b6 | 274 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
275 | |
276 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
277 | bits, treated as a signed number, is negative. */ | |
278 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
279 | 16, /* rightshift */ | |
280 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
281 | 16, /* bitsize */ | |
b34976b6 | 282 | FALSE, /* pc_relative */ |
5bd4f169 AM |
283 | 0, /* bitpos */ |
284 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 285 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 286 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 287 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
288 | 0, /* src_mask */ |
289 | 0xffff, /* dst_mask */ | |
b34976b6 | 290 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
291 | |
292 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
293 | FIXME: we don't check that, we just clear them. */ | |
294 | HOWTO (R_PPC64_ADDR14, /* type */ | |
295 | 0, /* rightshift */ | |
296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
297 | 16, /* bitsize */ | |
b34976b6 | 298 | FALSE, /* pc_relative */ |
5bd4f169 AM |
299 | 0, /* bitpos */ |
300 | complain_overflow_bitfield, /* complain_on_overflow */ | |
301 | bfd_elf_generic_reloc, /* special_function */ | |
302 | "R_PPC64_ADDR14", /* name */ | |
b34976b6 | 303 | FALSE, /* partial_inplace */ |
d006db6c | 304 | 0, /* src_mask */ |
f5e87a1d | 305 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 306 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
307 | |
308 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
309 | indicate that the branch is expected to be taken. The lower two | |
310 | bits must be zero. */ | |
311 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
312 | 0, /* rightshift */ | |
313 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
314 | 16, /* bitsize */ | |
b34976b6 | 315 | FALSE, /* pc_relative */ |
5bd4f169 AM |
316 | 0, /* bitpos */ |
317 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 318 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 319 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 320 | FALSE, /* partial_inplace */ |
d006db6c | 321 | 0, /* src_mask */ |
f5e87a1d | 322 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 323 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
324 | |
325 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
326 | indicate that the branch is not expected to be taken. The lower | |
327 | two bits must be zero. */ | |
328 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
329 | 0, /* rightshift */ | |
330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
331 | 16, /* bitsize */ | |
b34976b6 | 332 | FALSE, /* pc_relative */ |
5bd4f169 AM |
333 | 0, /* bitpos */ |
334 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 335 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 336 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 337 | FALSE, /* partial_inplace */ |
d006db6c | 338 | 0, /* src_mask */ |
f5e87a1d | 339 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 340 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
341 | |
342 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
343 | HOWTO (R_PPC64_REL24, /* type */ | |
344 | 0, /* rightshift */ | |
345 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
346 | 26, /* bitsize */ | |
b34976b6 | 347 | TRUE, /* pc_relative */ |
5bd4f169 AM |
348 | 0, /* bitpos */ |
349 | complain_overflow_signed, /* complain_on_overflow */ | |
350 | bfd_elf_generic_reloc, /* special_function */ | |
351 | "R_PPC64_REL24", /* name */ | |
b34976b6 | 352 | FALSE, /* partial_inplace */ |
d006db6c | 353 | 0, /* src_mask */ |
f5e87a1d | 354 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 355 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
356 | |
357 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
358 | HOWTO (R_PPC64_REL14, /* type */ | |
359 | 0, /* rightshift */ | |
360 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
361 | 16, /* bitsize */ | |
b34976b6 | 362 | TRUE, /* pc_relative */ |
5bd4f169 AM |
363 | 0, /* bitpos */ |
364 | complain_overflow_signed, /* complain_on_overflow */ | |
365 | bfd_elf_generic_reloc, /* special_function */ | |
366 | "R_PPC64_REL14", /* name */ | |
b34976b6 | 367 | FALSE, /* partial_inplace */ |
d006db6c | 368 | 0, /* src_mask */ |
f5e87a1d | 369 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 370 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
371 | |
372 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
373 | the branch is expected to be taken. The lower two bits must be | |
374 | zero. */ | |
375 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
376 | 0, /* rightshift */ | |
377 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
378 | 16, /* bitsize */ | |
b34976b6 | 379 | TRUE, /* pc_relative */ |
5bd4f169 AM |
380 | 0, /* bitpos */ |
381 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 382 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 383 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 384 | FALSE, /* partial_inplace */ |
d006db6c | 385 | 0, /* src_mask */ |
f5e87a1d | 386 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 387 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
388 | |
389 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
390 | the branch is not expected to be taken. The lower two bits must | |
391 | be zero. */ | |
392 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
393 | 0, /* rightshift */ | |
394 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
395 | 16, /* bitsize */ | |
b34976b6 | 396 | TRUE, /* pc_relative */ |
5bd4f169 AM |
397 | 0, /* bitpos */ |
398 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 399 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 400 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 401 | FALSE, /* partial_inplace */ |
d006db6c | 402 | 0, /* src_mask */ |
f5e87a1d | 403 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 404 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
405 | |
406 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
407 | symbol. */ | |
408 | HOWTO (R_PPC64_GOT16, /* type */ | |
409 | 0, /* rightshift */ | |
410 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
411 | 16, /* bitsize */ | |
b34976b6 | 412 | FALSE, /* pc_relative */ |
5bd4f169 AM |
413 | 0, /* bitpos */ |
414 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 415 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 416 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 417 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
418 | 0, /* src_mask */ |
419 | 0xffff, /* dst_mask */ | |
b34976b6 | 420 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
421 | |
422 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
423 | the symbol. */ | |
424 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
425 | 0, /* rightshift */ | |
426 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
427 | 16, /* bitsize */ | |
b34976b6 | 428 | FALSE, /* pc_relative */ |
5bd4f169 AM |
429 | 0, /* bitpos */ |
430 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 431 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 432 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 433 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
434 | 0, /* src_mask */ |
435 | 0xffff, /* dst_mask */ | |
b34976b6 | 436 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
437 | |
438 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
439 | the symbol. */ | |
440 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
441 | 16, /* rightshift */ | |
442 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
443 | 16, /* bitsize */ | |
b34976b6 | 444 | FALSE, /* pc_relative */ |
5bd4f169 AM |
445 | 0, /* bitpos */ |
446 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 447 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 448 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 449 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
450 | 0, /* src_mask */ |
451 | 0xffff, /* dst_mask */ | |
b34976b6 | 452 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
453 | |
454 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
455 | the symbol. */ | |
456 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
457 | 16, /* rightshift */ | |
458 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
459 | 16, /* bitsize */ | |
b34976b6 | 460 | FALSE, /* pc_relative */ |
5bd4f169 AM |
461 | 0, /* bitpos */ |
462 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 463 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 464 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 465 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
466 | 0, /* src_mask */ |
467 | 0xffff, /* dst_mask */ | |
b34976b6 | 468 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
469 | |
470 | /* This is used only by the dynamic linker. The symbol should exist | |
471 | both in the object being run and in some shared library. The | |
472 | dynamic linker copies the data addressed by the symbol from the | |
473 | shared library into the object, because the object being | |
474 | run has to have the data at some particular address. */ | |
475 | HOWTO (R_PPC64_COPY, /* type */ | |
476 | 0, /* rightshift */ | |
f5e87a1d AM |
477 | 0, /* this one is variable size */ |
478 | 0, /* bitsize */ | |
b34976b6 | 479 | FALSE, /* pc_relative */ |
5bd4f169 | 480 | 0, /* bitpos */ |
f5e87a1d AM |
481 | complain_overflow_dont, /* complain_on_overflow */ |
482 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 483 | "R_PPC64_COPY", /* name */ |
b34976b6 | 484 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
485 | 0, /* src_mask */ |
486 | 0, /* dst_mask */ | |
b34976b6 | 487 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
488 | |
489 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
490 | entries. */ | |
491 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
492 | 0, /* rightshift */ | |
493 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
494 | 64, /* bitsize */ | |
b34976b6 | 495 | FALSE, /* pc_relative */ |
5bd4f169 AM |
496 | 0, /* bitpos */ |
497 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 498 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 499 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 500 | FALSE, /* partial_inplace */ |
5bd4f169 | 501 | 0, /* src_mask */ |
f5e87a1d | 502 | ONES (64), /* dst_mask */ |
b34976b6 | 503 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
504 | |
505 | /* Created by the link editor. Marks a procedure linkage table | |
506 | entry for a symbol. */ | |
507 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
508 | 0, /* rightshift */ | |
509 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
510 | 0, /* bitsize */ | |
b34976b6 | 511 | FALSE, /* pc_relative */ |
5bd4f169 AM |
512 | 0, /* bitpos */ |
513 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 514 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 515 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 516 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
517 | 0, /* src_mask */ |
518 | 0, /* dst_mask */ | |
b34976b6 | 519 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
520 | |
521 | /* Used only by the dynamic linker. When the object is run, this | |
522 | doubleword64 is set to the load address of the object, plus the | |
523 | addend. */ | |
524 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
525 | 0, /* rightshift */ | |
526 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
527 | 64, /* bitsize */ | |
b34976b6 | 528 | FALSE, /* pc_relative */ |
5bd4f169 AM |
529 | 0, /* bitpos */ |
530 | complain_overflow_dont, /* complain_on_overflow */ | |
531 | bfd_elf_generic_reloc, /* special_function */ | |
532 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 533 | FALSE, /* partial_inplace */ |
5bd4f169 | 534 | 0, /* src_mask */ |
f5e87a1d | 535 | ONES (64), /* dst_mask */ |
b34976b6 | 536 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
537 | |
538 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
539 | HOWTO (R_PPC64_UADDR32, /* type */ | |
540 | 0, /* rightshift */ | |
541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
542 | 32, /* bitsize */ | |
b34976b6 | 543 | FALSE, /* pc_relative */ |
5bd4f169 AM |
544 | 0, /* bitpos */ |
545 | complain_overflow_bitfield, /* complain_on_overflow */ | |
546 | bfd_elf_generic_reloc, /* special_function */ | |
547 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 548 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
549 | 0, /* src_mask */ |
550 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 551 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
552 | |
553 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
554 | HOWTO (R_PPC64_UADDR16, /* type */ | |
555 | 0, /* rightshift */ | |
556 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
557 | 16, /* bitsize */ | |
b34976b6 | 558 | FALSE, /* pc_relative */ |
5bd4f169 AM |
559 | 0, /* bitpos */ |
560 | complain_overflow_bitfield, /* complain_on_overflow */ | |
561 | bfd_elf_generic_reloc, /* special_function */ | |
562 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 563 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
564 | 0, /* src_mask */ |
565 | 0xffff, /* dst_mask */ | |
b34976b6 | 566 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
567 | |
568 | /* 32-bit PC relative. */ | |
569 | HOWTO (R_PPC64_REL32, /* type */ | |
570 | 0, /* rightshift */ | |
571 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
572 | 32, /* bitsize */ | |
b34976b6 | 573 | TRUE, /* pc_relative */ |
5bd4f169 | 574 | 0, /* bitpos */ |
cedb70c5 | 575 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
576 | complain_overflow_signed, /* complain_on_overflow */ |
577 | bfd_elf_generic_reloc, /* special_function */ | |
578 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 579 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
580 | 0, /* src_mask */ |
581 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 582 | TRUE), /* pcrel_offset */ |
5bd4f169 | 583 | |
10ed1bba | 584 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
585 | HOWTO (R_PPC64_PLT32, /* type */ |
586 | 0, /* rightshift */ | |
587 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
588 | 32, /* bitsize */ | |
b34976b6 | 589 | FALSE, /* pc_relative */ |
5bd4f169 AM |
590 | 0, /* bitpos */ |
591 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 592 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 593 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 594 | FALSE, /* partial_inplace */ |
5bd4f169 | 595 | 0, /* src_mask */ |
f5e87a1d | 596 | 0xffffffff, /* dst_mask */ |
b34976b6 | 597 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
598 | |
599 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
600 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
601 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
602 | 0, /* rightshift */ | |
603 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
604 | 32, /* bitsize */ | |
b34976b6 | 605 | TRUE, /* pc_relative */ |
5bd4f169 AM |
606 | 0, /* bitpos */ |
607 | complain_overflow_signed, /* complain_on_overflow */ | |
608 | bfd_elf_generic_reloc, /* special_function */ | |
609 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 610 | FALSE, /* partial_inplace */ |
5bd4f169 | 611 | 0, /* src_mask */ |
f5e87a1d | 612 | 0xffffffff, /* dst_mask */ |
b34976b6 | 613 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
614 | |
615 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
616 | the symbol. */ | |
617 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
618 | 0, /* rightshift */ | |
619 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
620 | 16, /* bitsize */ | |
b34976b6 | 621 | FALSE, /* pc_relative */ |
5bd4f169 AM |
622 | 0, /* bitpos */ |
623 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 624 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 625 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 626 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
627 | 0, /* src_mask */ |
628 | 0xffff, /* dst_mask */ | |
b34976b6 | 629 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
630 | |
631 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
632 | the symbol. */ | |
633 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
634 | 16, /* rightshift */ | |
635 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
636 | 16, /* bitsize */ | |
b34976b6 | 637 | FALSE, /* pc_relative */ |
5bd4f169 AM |
638 | 0, /* bitpos */ |
639 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 640 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 641 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 642 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
643 | 0, /* src_mask */ |
644 | 0xffff, /* dst_mask */ | |
b34976b6 | 645 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
646 | |
647 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
648 | the symbol. */ | |
649 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
650 | 16, /* rightshift */ | |
651 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
652 | 16, /* bitsize */ | |
b34976b6 | 653 | FALSE, /* pc_relative */ |
5bd4f169 AM |
654 | 0, /* bitpos */ |
655 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 656 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 657 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 658 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
659 | 0, /* src_mask */ |
660 | 0xffff, /* dst_mask */ | |
b34976b6 | 661 | FALSE), /* pcrel_offset */ |
5bd4f169 | 662 | |
c061c2d8 | 663 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
664 | HOWTO (R_PPC64_SECTOFF, /* type */ |
665 | 0, /* rightshift */ | |
c061c2d8 AM |
666 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
667 | 16, /* bitsize */ | |
b34976b6 | 668 | FALSE, /* pc_relative */ |
5bd4f169 AM |
669 | 0, /* bitpos */ |
670 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 671 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 672 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 673 | FALSE, /* partial_inplace */ |
5bd4f169 | 674 | 0, /* src_mask */ |
c061c2d8 | 675 | 0xffff, /* dst_mask */ |
b34976b6 | 676 | FALSE), /* pcrel_offset */ |
5bd4f169 | 677 | |
c061c2d8 | 678 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
679 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
680 | 0, /* rightshift */ | |
681 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
682 | 16, /* bitsize */ | |
b34976b6 | 683 | FALSE, /* pc_relative */ |
5bd4f169 AM |
684 | 0, /* bitpos */ |
685 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 686 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 687 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 688 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
689 | 0, /* src_mask */ |
690 | 0xffff, /* dst_mask */ | |
b34976b6 | 691 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
692 | |
693 | /* 16-bit upper half section relative relocation. */ | |
694 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
695 | 16, /* rightshift */ | |
696 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
697 | 16, /* bitsize */ | |
b34976b6 | 698 | FALSE, /* pc_relative */ |
5bd4f169 AM |
699 | 0, /* bitpos */ |
700 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 701 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 702 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 703 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
704 | 0, /* src_mask */ |
705 | 0xffff, /* dst_mask */ | |
b34976b6 | 706 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
707 | |
708 | /* 16-bit upper half adjusted section relative relocation. */ | |
709 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
710 | 16, /* rightshift */ | |
711 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
712 | 16, /* bitsize */ | |
b34976b6 | 713 | FALSE, /* pc_relative */ |
5bd4f169 AM |
714 | 0, /* bitpos */ |
715 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 716 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 717 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 718 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
719 | 0, /* src_mask */ |
720 | 0xffff, /* dst_mask */ | |
b34976b6 | 721 | FALSE), /* pcrel_offset */ |
5bd4f169 | 722 | |
04c9666a AM |
723 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
724 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
725 | 2, /* rightshift */ |
726 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
727 | 30, /* bitsize */ | |
b34976b6 | 728 | TRUE, /* pc_relative */ |
5bd4f169 AM |
729 | 0, /* bitpos */ |
730 | complain_overflow_dont, /* complain_on_overflow */ | |
731 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 732 | "R_PPC64_REL30", /* name */ |
b34976b6 | 733 | FALSE, /* partial_inplace */ |
d006db6c | 734 | 0, /* src_mask */ |
5bd4f169 | 735 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 736 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
737 | |
738 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
739 | ||
740 | /* A standard 64-bit relocation. */ | |
741 | HOWTO (R_PPC64_ADDR64, /* type */ | |
742 | 0, /* rightshift */ | |
743 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
744 | 64, /* bitsize */ | |
b34976b6 | 745 | FALSE, /* pc_relative */ |
5bd4f169 AM |
746 | 0, /* bitpos */ |
747 | complain_overflow_dont, /* complain_on_overflow */ | |
748 | bfd_elf_generic_reloc, /* special_function */ | |
749 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 750 | FALSE, /* partial_inplace */ |
5bd4f169 | 751 | 0, /* src_mask */ |
f5e87a1d | 752 | ONES (64), /* dst_mask */ |
b34976b6 | 753 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
754 | |
755 | /* The bits 32-47 of an address. */ | |
756 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
757 | 32, /* rightshift */ | |
758 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
759 | 16, /* bitsize */ | |
b34976b6 | 760 | FALSE, /* pc_relative */ |
5bd4f169 AM |
761 | 0, /* bitpos */ |
762 | complain_overflow_dont, /* complain_on_overflow */ | |
763 | bfd_elf_generic_reloc, /* special_function */ | |
764 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 765 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
766 | 0, /* src_mask */ |
767 | 0xffff, /* dst_mask */ | |
b34976b6 | 768 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
769 | |
770 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
771 | 16 bits, treated as a signed number, is negative. */ | |
772 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
773 | 32, /* rightshift */ | |
774 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
775 | 16, /* bitsize */ | |
b34976b6 | 776 | FALSE, /* pc_relative */ |
5bd4f169 AM |
777 | 0, /* bitpos */ |
778 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 779 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 780 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 781 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
782 | 0, /* src_mask */ |
783 | 0xffff, /* dst_mask */ | |
b34976b6 | 784 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
785 | |
786 | /* The bits 48-63 of an address. */ | |
787 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
788 | 48, /* rightshift */ | |
789 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
790 | 16, /* bitsize */ | |
b34976b6 | 791 | FALSE, /* pc_relative */ |
5bd4f169 AM |
792 | 0, /* bitpos */ |
793 | complain_overflow_dont, /* complain_on_overflow */ | |
794 | bfd_elf_generic_reloc, /* special_function */ | |
795 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 796 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
797 | 0, /* src_mask */ |
798 | 0xffff, /* dst_mask */ | |
b34976b6 | 799 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
800 | |
801 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
802 | 16 bits, treated as a signed number, is negative. */ | |
803 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
804 | 48, /* rightshift */ | |
805 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
806 | 16, /* bitsize */ | |
b34976b6 | 807 | FALSE, /* pc_relative */ |
5bd4f169 AM |
808 | 0, /* bitpos */ |
809 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 810 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 811 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 812 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
813 | 0, /* src_mask */ |
814 | 0xffff, /* dst_mask */ | |
b34976b6 | 815 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
816 | |
817 | /* Like ADDR64, but may be unaligned. */ | |
818 | HOWTO (R_PPC64_UADDR64, /* type */ | |
819 | 0, /* rightshift */ | |
820 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
821 | 64, /* bitsize */ | |
b34976b6 | 822 | FALSE, /* pc_relative */ |
5bd4f169 AM |
823 | 0, /* bitpos */ |
824 | complain_overflow_dont, /* complain_on_overflow */ | |
825 | bfd_elf_generic_reloc, /* special_function */ | |
826 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 827 | FALSE, /* partial_inplace */ |
5bd4f169 | 828 | 0, /* src_mask */ |
f5e87a1d | 829 | ONES (64), /* dst_mask */ |
b34976b6 | 830 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
831 | |
832 | /* 64-bit relative relocation. */ | |
833 | HOWTO (R_PPC64_REL64, /* type */ | |
834 | 0, /* rightshift */ | |
835 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
836 | 64, /* bitsize */ | |
b34976b6 | 837 | TRUE, /* pc_relative */ |
5bd4f169 AM |
838 | 0, /* bitpos */ |
839 | complain_overflow_dont, /* complain_on_overflow */ | |
840 | bfd_elf_generic_reloc, /* special_function */ | |
841 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 842 | FALSE, /* partial_inplace */ |
5bd4f169 | 843 | 0, /* src_mask */ |
f5e87a1d | 844 | ONES (64), /* dst_mask */ |
b34976b6 | 845 | TRUE), /* pcrel_offset */ |
5bd4f169 | 846 | |
cedb70c5 | 847 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
848 | HOWTO (R_PPC64_PLT64, /* type */ |
849 | 0, /* rightshift */ | |
850 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
851 | 64, /* bitsize */ | |
b34976b6 | 852 | FALSE, /* pc_relative */ |
5bd4f169 AM |
853 | 0, /* bitpos */ |
854 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 855 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 856 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 857 | FALSE, /* partial_inplace */ |
5bd4f169 | 858 | 0, /* src_mask */ |
f5e87a1d | 859 | ONES (64), /* dst_mask */ |
b34976b6 | 860 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
861 | |
862 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
863 | table. */ | |
864 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
865 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
866 | 0, /* rightshift */ | |
867 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
868 | 64, /* bitsize */ | |
b34976b6 | 869 | TRUE, /* pc_relative */ |
5bd4f169 AM |
870 | 0, /* bitpos */ |
871 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 872 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 873 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 874 | FALSE, /* partial_inplace */ |
5bd4f169 | 875 | 0, /* src_mask */ |
f5e87a1d | 876 | ONES (64), /* dst_mask */ |
b34976b6 | 877 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
878 | |
879 | /* 16 bit TOC-relative relocation. */ | |
880 | ||
881 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
882 | HOWTO (R_PPC64_TOC16, /* type */ | |
883 | 0, /* rightshift */ | |
884 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
885 | 16, /* bitsize */ | |
b34976b6 | 886 | FALSE, /* pc_relative */ |
5bd4f169 AM |
887 | 0, /* bitpos */ |
888 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 889 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 890 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 891 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
892 | 0, /* src_mask */ |
893 | 0xffff, /* dst_mask */ | |
b34976b6 | 894 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
895 | |
896 | /* 16 bit TOC-relative relocation without overflow. */ | |
897 | ||
898 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
899 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
900 | 0, /* rightshift */ | |
901 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
902 | 16, /* bitsize */ | |
b34976b6 | 903 | FALSE, /* pc_relative */ |
5bd4f169 AM |
904 | 0, /* bitpos */ |
905 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 906 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 907 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 908 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
909 | 0, /* src_mask */ |
910 | 0xffff, /* dst_mask */ | |
b34976b6 | 911 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
912 | |
913 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
914 | ||
915 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
916 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
917 | 16, /* rightshift */ | |
918 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
919 | 16, /* bitsize */ | |
b34976b6 | 920 | FALSE, /* pc_relative */ |
5bd4f169 AM |
921 | 0, /* bitpos */ |
922 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 923 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 924 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 925 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
926 | 0, /* src_mask */ |
927 | 0xffff, /* dst_mask */ | |
b34976b6 | 928 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
929 | |
930 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
931 | contents of the low 16 bits, treated as a signed number, is | |
932 | negative. */ | |
933 | ||
934 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
935 | HOWTO (R_PPC64_TOC16_HA, /* 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_ha_reloc, /* special_function */ |
5bd4f169 | 943 | "R_PPC64_TOC16_HA", /* 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 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
950 | ||
951 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
952 | HOWTO (R_PPC64_TOC, /* type */ | |
953 | 0, /* rightshift */ | |
954 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
955 | 64, /* bitsize */ | |
b34976b6 | 956 | FALSE, /* pc_relative */ |
5bd4f169 AM |
957 | 0, /* bitpos */ |
958 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 959 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 960 | "R_PPC64_TOC", /* name */ |
b34976b6 | 961 | FALSE, /* partial_inplace */ |
5bd4f169 | 962 | 0, /* src_mask */ |
f5e87a1d | 963 | ONES (64), /* dst_mask */ |
b34976b6 | 964 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
965 | |
966 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
967 | value to relocate may (!) refer to a PLT entry which the link | |
968 | editor (a) may replace with the symbol value. If the link editor | |
969 | is unable to fully resolve the symbol, it may (b) create a PLT | |
970 | entry and store the address to the new PLT entry in the GOT. | |
971 | This permits lazy resolution of function symbols at run time. | |
972 | The link editor may also skip all of this and just (c) emit a | |
973 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
974 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
975 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
976 | 0, /* rightshift */ | |
977 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
978 | 16, /* bitsize */ | |
b34976b6 | 979 | FALSE, /* pc_relative */ |
5bd4f169 AM |
980 | 0, /* bitpos */ |
981 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 982 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
983 | "R_PPC64_PLTGOT16", /* name */ |
984 | FALSE, /* partial_inplace */ | |
985 | 0, /* src_mask */ | |
986 | 0xffff, /* dst_mask */ | |
987 | FALSE), /* pcrel_offset */ | |
988 | ||
989 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
990 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
991 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
992 | 0, /* rightshift */ | |
993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
994 | 16, /* bitsize */ | |
995 | FALSE, /* pc_relative */ | |
996 | 0, /* bitpos */ | |
997 | complain_overflow_dont, /* complain_on_overflow */ | |
998 | ppc64_elf_unhandled_reloc, /* special_function */ | |
999 | "R_PPC64_PLTGOT16_LO", /* name */ | |
1000 | FALSE, /* partial_inplace */ | |
1001 | 0, /* src_mask */ | |
1002 | 0xffff, /* dst_mask */ | |
1003 | FALSE), /* pcrel_offset */ | |
1004 | ||
1005 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1006 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1007 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1008 | 16, /* rightshift */ | |
1009 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1010 | 16, /* bitsize */ | |
1011 | FALSE, /* pc_relative */ | |
1012 | 0, /* bitpos */ | |
1013 | complain_overflow_dont, /* complain_on_overflow */ | |
1014 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1015 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1016 | FALSE, /* partial_inplace */ | |
1017 | 0, /* src_mask */ | |
1018 | 0xffff, /* dst_mask */ | |
1019 | FALSE), /* pcrel_offset */ | |
1020 | ||
1021 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1022 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1023 | is negative. */ | |
1024 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1025 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1026 | 16, /* rightshift */ | |
1027 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1028 | 16, /* bitsize */ | |
1029 | FALSE, /* pc_relative */ | |
1030 | 0, /* bitpos */ | |
1031 | complain_overflow_dont,/* complain_on_overflow */ | |
1032 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1033 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1034 | FALSE, /* partial_inplace */ | |
1035 | 0, /* src_mask */ | |
1036 | 0xffff, /* dst_mask */ | |
1037 | FALSE), /* pcrel_offset */ | |
1038 | ||
1039 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1040 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1041 | 0, /* rightshift */ | |
1042 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1043 | 16, /* bitsize */ | |
1044 | FALSE, /* pc_relative */ | |
1045 | 0, /* bitpos */ | |
1046 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1047 | bfd_elf_generic_reloc, /* special_function */ | |
1048 | "R_PPC64_ADDR16_DS", /* name */ | |
1049 | FALSE, /* partial_inplace */ | |
1050 | 0, /* src_mask */ | |
1051 | 0xfffc, /* dst_mask */ | |
1052 | FALSE), /* pcrel_offset */ | |
1053 | ||
1054 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1055 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1056 | 0, /* rightshift */ | |
1057 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1058 | 16, /* bitsize */ | |
1059 | FALSE, /* pc_relative */ | |
1060 | 0, /* bitpos */ | |
1061 | complain_overflow_dont,/* complain_on_overflow */ | |
1062 | bfd_elf_generic_reloc, /* special_function */ | |
1063 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1064 | FALSE, /* partial_inplace */ | |
1065 | 0, /* src_mask */ | |
1066 | 0xfffc, /* dst_mask */ | |
1067 | FALSE), /* pcrel_offset */ | |
1068 | ||
1069 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1070 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1071 | 0, /* rightshift */ | |
1072 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1073 | 16, /* bitsize */ | |
1074 | FALSE, /* pc_relative */ | |
1075 | 0, /* bitpos */ | |
1076 | complain_overflow_signed, /* complain_on_overflow */ | |
1077 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1078 | "R_PPC64_GOT16_DS", /* name */ | |
1079 | FALSE, /* partial_inplace */ | |
1080 | 0, /* src_mask */ | |
1081 | 0xfffc, /* dst_mask */ | |
1082 | FALSE), /* pcrel_offset */ | |
1083 | ||
1084 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1085 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1086 | 0, /* rightshift */ | |
1087 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1088 | 16, /* bitsize */ | |
1089 | FALSE, /* pc_relative */ | |
1090 | 0, /* bitpos */ | |
1091 | complain_overflow_dont, /* complain_on_overflow */ | |
1092 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1093 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1094 | FALSE, /* partial_inplace */ | |
1095 | 0, /* src_mask */ | |
1096 | 0xfffc, /* dst_mask */ | |
1097 | FALSE), /* pcrel_offset */ | |
1098 | ||
1099 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1100 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1101 | 0, /* rightshift */ | |
1102 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1103 | 16, /* bitsize */ | |
1104 | FALSE, /* pc_relative */ | |
1105 | 0, /* bitpos */ | |
1106 | complain_overflow_dont, /* complain_on_overflow */ | |
1107 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1108 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1109 | FALSE, /* partial_inplace */ | |
1110 | 0, /* src_mask */ | |
1111 | 0xfffc, /* dst_mask */ | |
1112 | FALSE), /* pcrel_offset */ | |
1113 | ||
1114 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1115 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1116 | 0, /* rightshift */ | |
1117 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1118 | 16, /* bitsize */ | |
1119 | FALSE, /* pc_relative */ | |
1120 | 0, /* bitpos */ | |
1121 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1122 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1123 | "R_PPC64_SECTOFF_DS", /* name */ | |
1124 | FALSE, /* partial_inplace */ | |
1125 | 0, /* src_mask */ | |
1126 | 0xfffc, /* dst_mask */ | |
1127 | FALSE), /* pcrel_offset */ | |
1128 | ||
1129 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1130 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1131 | 0, /* rightshift */ | |
1132 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1133 | 16, /* bitsize */ | |
1134 | FALSE, /* pc_relative */ | |
1135 | 0, /* bitpos */ | |
1136 | complain_overflow_dont, /* complain_on_overflow */ | |
1137 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1138 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1139 | FALSE, /* partial_inplace */ | |
1140 | 0, /* src_mask */ | |
1141 | 0xfffc, /* dst_mask */ | |
1142 | FALSE), /* pcrel_offset */ | |
1143 | ||
1144 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1145 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1146 | 0, /* rightshift */ | |
1147 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1148 | 16, /* bitsize */ | |
1149 | FALSE, /* pc_relative */ | |
1150 | 0, /* bitpos */ | |
1151 | complain_overflow_signed, /* complain_on_overflow */ | |
1152 | ppc64_elf_toc_reloc, /* special_function */ | |
1153 | "R_PPC64_TOC16_DS", /* name */ | |
1154 | FALSE, /* partial_inplace */ | |
1155 | 0, /* src_mask */ | |
1156 | 0xfffc, /* dst_mask */ | |
1157 | FALSE), /* pcrel_offset */ | |
1158 | ||
1159 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1160 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1161 | 0, /* rightshift */ | |
1162 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1163 | 16, /* bitsize */ | |
1164 | FALSE, /* pc_relative */ | |
1165 | 0, /* bitpos */ | |
1166 | complain_overflow_dont, /* complain_on_overflow */ | |
1167 | ppc64_elf_toc_reloc, /* special_function */ | |
1168 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1169 | FALSE, /* partial_inplace */ | |
1170 | 0, /* src_mask */ | |
1171 | 0xfffc, /* dst_mask */ | |
1172 | FALSE), /* pcrel_offset */ | |
1173 | ||
1174 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1175 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1176 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1177 | 0, /* rightshift */ | |
1178 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1179 | 16, /* bitsize */ | |
1180 | FALSE, /* pc_relative */ | |
1181 | 0, /* bitpos */ | |
1182 | complain_overflow_signed, /* complain_on_overflow */ | |
1183 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1184 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1185 | FALSE, /* partial_inplace */ | |
1186 | 0, /* src_mask */ | |
1187 | 0xfffc, /* dst_mask */ | |
1188 | FALSE), /* pcrel_offset */ | |
1189 | ||
1190 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1191 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1192 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1193 | 0, /* rightshift */ | |
1194 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1195 | 16, /* bitsize */ | |
1196 | FALSE, /* pc_relative */ | |
1197 | 0, /* bitpos */ | |
1198 | complain_overflow_dont, /* complain_on_overflow */ | |
1199 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1200 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1201 | FALSE, /* partial_inplace */ | |
1202 | 0, /* src_mask */ | |
1203 | 0xfffc, /* dst_mask */ | |
1204 | FALSE), /* pcrel_offset */ | |
1205 | ||
1206 | /* Marker reloc for TLS. */ | |
1207 | HOWTO (R_PPC64_TLS, | |
1208 | 0, /* rightshift */ | |
1209 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1210 | 32, /* bitsize */ | |
1211 | FALSE, /* pc_relative */ | |
1212 | 0, /* bitpos */ | |
1213 | complain_overflow_dont, /* complain_on_overflow */ | |
1214 | bfd_elf_generic_reloc, /* special_function */ | |
1215 | "R_PPC64_TLS", /* name */ | |
1216 | FALSE, /* partial_inplace */ | |
1217 | 0, /* src_mask */ | |
1218 | 0, /* dst_mask */ | |
1219 | FALSE), /* pcrel_offset */ | |
1220 | ||
1221 | /* Computes the load module index of the load module that contains the | |
1222 | definition of its TLS sym. */ | |
1223 | HOWTO (R_PPC64_DTPMOD64, | |
1224 | 0, /* rightshift */ | |
1225 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1226 | 64, /* bitsize */ | |
1227 | FALSE, /* pc_relative */ | |
1228 | 0, /* bitpos */ | |
1229 | complain_overflow_dont, /* complain_on_overflow */ | |
1230 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1231 | "R_PPC64_DTPMOD64", /* name */ | |
1232 | FALSE, /* partial_inplace */ | |
1233 | 0, /* src_mask */ | |
1234 | ONES (64), /* dst_mask */ | |
1235 | FALSE), /* pcrel_offset */ | |
1236 | ||
1237 | /* Computes a dtv-relative displacement, the difference between the value | |
1238 | of sym+add and the base address of the thread-local storage block that | |
1239 | contains the definition of sym, minus 0x8000. */ | |
1240 | HOWTO (R_PPC64_DTPREL64, | |
1241 | 0, /* rightshift */ | |
1242 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1243 | 64, /* bitsize */ | |
1244 | FALSE, /* pc_relative */ | |
1245 | 0, /* bitpos */ | |
1246 | complain_overflow_dont, /* complain_on_overflow */ | |
1247 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1248 | "R_PPC64_DTPREL64", /* name */ | |
1249 | FALSE, /* partial_inplace */ | |
1250 | 0, /* src_mask */ | |
1251 | ONES (64), /* dst_mask */ | |
1252 | FALSE), /* pcrel_offset */ | |
1253 | ||
1254 | /* A 16 bit dtprel reloc. */ | |
1255 | HOWTO (R_PPC64_DTPREL16, | |
1256 | 0, /* rightshift */ | |
1257 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1258 | 16, /* bitsize */ | |
1259 | FALSE, /* pc_relative */ | |
1260 | 0, /* bitpos */ | |
1261 | complain_overflow_signed, /* complain_on_overflow */ | |
1262 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1263 | "R_PPC64_DTPREL16", /* name */ | |
1264 | FALSE, /* partial_inplace */ | |
1265 | 0, /* src_mask */ | |
1266 | 0xffff, /* dst_mask */ | |
1267 | FALSE), /* pcrel_offset */ | |
1268 | ||
1269 | /* Like DTPREL16, but no overflow. */ | |
1270 | HOWTO (R_PPC64_DTPREL16_LO, | |
1271 | 0, /* rightshift */ | |
1272 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1273 | 16, /* bitsize */ | |
1274 | FALSE, /* pc_relative */ | |
1275 | 0, /* bitpos */ | |
1276 | complain_overflow_dont, /* complain_on_overflow */ | |
1277 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1278 | "R_PPC64_DTPREL16_LO", /* name */ | |
1279 | FALSE, /* partial_inplace */ | |
1280 | 0, /* src_mask */ | |
1281 | 0xffff, /* dst_mask */ | |
1282 | FALSE), /* pcrel_offset */ | |
1283 | ||
1284 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1285 | HOWTO (R_PPC64_DTPREL16_HI, | |
1286 | 16, /* rightshift */ | |
1287 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1288 | 16, /* bitsize */ | |
1289 | FALSE, /* pc_relative */ | |
1290 | 0, /* bitpos */ | |
1291 | complain_overflow_dont, /* complain_on_overflow */ | |
1292 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1293 | "R_PPC64_DTPREL16_HI", /* name */ | |
1294 | FALSE, /* partial_inplace */ | |
1295 | 0, /* src_mask */ | |
1296 | 0xffff, /* dst_mask */ | |
1297 | FALSE), /* pcrel_offset */ | |
1298 | ||
1299 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1300 | HOWTO (R_PPC64_DTPREL16_HA, | |
1301 | 16, /* rightshift */ | |
1302 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1303 | 16, /* bitsize */ | |
1304 | FALSE, /* pc_relative */ | |
1305 | 0, /* bitpos */ | |
1306 | complain_overflow_dont, /* complain_on_overflow */ | |
1307 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1308 | "R_PPC64_DTPREL16_HA", /* name */ | |
1309 | FALSE, /* partial_inplace */ | |
1310 | 0, /* src_mask */ | |
1311 | 0xffff, /* dst_mask */ | |
1312 | FALSE), /* pcrel_offset */ | |
1313 | ||
1314 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1315 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1316 | 32, /* rightshift */ | |
1317 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1318 | 16, /* bitsize */ | |
1319 | FALSE, /* pc_relative */ | |
1320 | 0, /* bitpos */ | |
1321 | complain_overflow_dont, /* complain_on_overflow */ | |
1322 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1323 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1324 | FALSE, /* partial_inplace */ | |
1325 | 0, /* src_mask */ | |
1326 | 0xffff, /* dst_mask */ | |
1327 | FALSE), /* pcrel_offset */ | |
1328 | ||
1329 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1330 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1331 | 32, /* rightshift */ | |
1332 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1333 | 16, /* bitsize */ | |
1334 | FALSE, /* pc_relative */ | |
1335 | 0, /* bitpos */ | |
1336 | complain_overflow_dont, /* complain_on_overflow */ | |
1337 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1338 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1339 | FALSE, /* partial_inplace */ | |
1340 | 0, /* src_mask */ | |
1341 | 0xffff, /* dst_mask */ | |
1342 | FALSE), /* pcrel_offset */ | |
1343 | ||
1344 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1345 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1346 | 48, /* rightshift */ | |
1347 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1348 | 16, /* bitsize */ | |
1349 | FALSE, /* pc_relative */ | |
1350 | 0, /* bitpos */ | |
1351 | complain_overflow_dont, /* complain_on_overflow */ | |
1352 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1353 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1354 | FALSE, /* partial_inplace */ | |
1355 | 0, /* src_mask */ | |
1356 | 0xffff, /* dst_mask */ | |
1357 | FALSE), /* pcrel_offset */ | |
1358 | ||
1359 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1360 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1361 | 48, /* rightshift */ | |
1362 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1363 | 16, /* bitsize */ | |
1364 | FALSE, /* pc_relative */ | |
1365 | 0, /* bitpos */ | |
1366 | complain_overflow_dont, /* complain_on_overflow */ | |
1367 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1368 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1369 | FALSE, /* partial_inplace */ | |
1370 | 0, /* src_mask */ | |
1371 | 0xffff, /* dst_mask */ | |
1372 | FALSE), /* pcrel_offset */ | |
1373 | ||
1374 | /* Like DTPREL16, but for insns with a DS field. */ | |
1375 | HOWTO (R_PPC64_DTPREL16_DS, | |
1376 | 0, /* rightshift */ | |
1377 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1378 | 16, /* bitsize */ | |
1379 | FALSE, /* pc_relative */ | |
1380 | 0, /* bitpos */ | |
1381 | complain_overflow_signed, /* complain_on_overflow */ | |
1382 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1383 | "R_PPC64_DTPREL16_DS", /* name */ | |
1384 | FALSE, /* partial_inplace */ | |
1385 | 0, /* src_mask */ | |
1386 | 0xfffc, /* dst_mask */ | |
1387 | FALSE), /* pcrel_offset */ | |
1388 | ||
1389 | /* Like DTPREL16_DS, but no overflow. */ | |
1390 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1391 | 0, /* rightshift */ | |
1392 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1393 | 16, /* bitsize */ | |
1394 | FALSE, /* pc_relative */ | |
1395 | 0, /* bitpos */ | |
1396 | complain_overflow_dont, /* complain_on_overflow */ | |
1397 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1398 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1399 | FALSE, /* partial_inplace */ | |
1400 | 0, /* src_mask */ | |
1401 | 0xfffc, /* dst_mask */ | |
1402 | FALSE), /* pcrel_offset */ | |
1403 | ||
1404 | /* Computes a tp-relative displacement, the difference between the value of | |
1405 | sym+add and the value of the thread pointer (r13). */ | |
1406 | HOWTO (R_PPC64_TPREL64, | |
1407 | 0, /* rightshift */ | |
1408 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1409 | 64, /* bitsize */ | |
1410 | FALSE, /* pc_relative */ | |
1411 | 0, /* bitpos */ | |
1412 | complain_overflow_dont, /* complain_on_overflow */ | |
1413 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1414 | "R_PPC64_TPREL64", /* name */ | |
1415 | FALSE, /* partial_inplace */ | |
1416 | 0, /* src_mask */ | |
1417 | ONES (64), /* dst_mask */ | |
1418 | FALSE), /* pcrel_offset */ | |
1419 | ||
1420 | /* A 16 bit tprel reloc. */ | |
1421 | HOWTO (R_PPC64_TPREL16, | |
1422 | 0, /* rightshift */ | |
1423 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1424 | 16, /* bitsize */ | |
1425 | FALSE, /* pc_relative */ | |
1426 | 0, /* bitpos */ | |
1427 | complain_overflow_signed, /* complain_on_overflow */ | |
1428 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1429 | "R_PPC64_TPREL16", /* name */ | |
1430 | FALSE, /* partial_inplace */ | |
1431 | 0, /* src_mask */ | |
1432 | 0xffff, /* dst_mask */ | |
1433 | FALSE), /* pcrel_offset */ | |
1434 | ||
1435 | /* Like TPREL16, but no overflow. */ | |
1436 | HOWTO (R_PPC64_TPREL16_LO, | |
1437 | 0, /* rightshift */ | |
1438 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1439 | 16, /* bitsize */ | |
1440 | FALSE, /* pc_relative */ | |
1441 | 0, /* bitpos */ | |
1442 | complain_overflow_dont, /* complain_on_overflow */ | |
1443 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1444 | "R_PPC64_TPREL16_LO", /* name */ | |
1445 | FALSE, /* partial_inplace */ | |
1446 | 0, /* src_mask */ | |
1447 | 0xffff, /* dst_mask */ | |
1448 | FALSE), /* pcrel_offset */ | |
1449 | ||
1450 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1451 | HOWTO (R_PPC64_TPREL16_HI, | |
1452 | 16, /* rightshift */ | |
1453 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1454 | 16, /* bitsize */ | |
1455 | FALSE, /* pc_relative */ | |
1456 | 0, /* bitpos */ | |
1457 | complain_overflow_dont, /* complain_on_overflow */ | |
1458 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1459 | "R_PPC64_TPREL16_HI", /* name */ | |
1460 | FALSE, /* partial_inplace */ | |
1461 | 0, /* src_mask */ | |
1462 | 0xffff, /* dst_mask */ | |
1463 | FALSE), /* pcrel_offset */ | |
1464 | ||
1465 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1466 | HOWTO (R_PPC64_TPREL16_HA, | |
1467 | 16, /* rightshift */ | |
1468 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1469 | 16, /* bitsize */ | |
1470 | FALSE, /* pc_relative */ | |
1471 | 0, /* bitpos */ | |
1472 | complain_overflow_dont, /* complain_on_overflow */ | |
1473 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1474 | "R_PPC64_TPREL16_HA", /* name */ | |
1475 | FALSE, /* partial_inplace */ | |
1476 | 0, /* src_mask */ | |
1477 | 0xffff, /* dst_mask */ | |
1478 | FALSE), /* pcrel_offset */ | |
1479 | ||
1480 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1481 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1482 | 32, /* rightshift */ | |
1483 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1484 | 16, /* bitsize */ | |
1485 | FALSE, /* pc_relative */ | |
1486 | 0, /* bitpos */ | |
1487 | complain_overflow_dont, /* complain_on_overflow */ | |
1488 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1489 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1490 | FALSE, /* partial_inplace */ | |
1491 | 0, /* src_mask */ | |
1492 | 0xffff, /* dst_mask */ | |
1493 | FALSE), /* pcrel_offset */ | |
1494 | ||
1495 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1496 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1497 | 32, /* rightshift */ | |
1498 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1499 | 16, /* bitsize */ | |
1500 | FALSE, /* pc_relative */ | |
1501 | 0, /* bitpos */ | |
1502 | complain_overflow_dont, /* complain_on_overflow */ | |
1503 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1504 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1505 | FALSE, /* partial_inplace */ | |
1506 | 0, /* src_mask */ | |
1507 | 0xffff, /* dst_mask */ | |
1508 | FALSE), /* pcrel_offset */ | |
1509 | ||
1510 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1511 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1512 | 48, /* rightshift */ | |
1513 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1514 | 16, /* bitsize */ | |
1515 | FALSE, /* pc_relative */ | |
1516 | 0, /* bitpos */ | |
1517 | complain_overflow_dont, /* complain_on_overflow */ | |
1518 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1519 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1520 | FALSE, /* partial_inplace */ | |
1521 | 0, /* src_mask */ | |
1522 | 0xffff, /* dst_mask */ | |
1523 | FALSE), /* pcrel_offset */ | |
1524 | ||
1525 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1526 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1527 | 48, /* rightshift */ | |
1528 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1529 | 16, /* bitsize */ | |
1530 | FALSE, /* pc_relative */ | |
1531 | 0, /* bitpos */ | |
1532 | complain_overflow_dont, /* complain_on_overflow */ | |
1533 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1534 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1535 | FALSE, /* partial_inplace */ | |
1536 | 0, /* src_mask */ | |
1537 | 0xffff, /* dst_mask */ | |
1538 | FALSE), /* pcrel_offset */ | |
1539 | ||
1540 | /* Like TPREL16, but for insns with a DS field. */ | |
1541 | HOWTO (R_PPC64_TPREL16_DS, | |
1542 | 0, /* rightshift */ | |
1543 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1544 | 16, /* bitsize */ | |
1545 | FALSE, /* pc_relative */ | |
1546 | 0, /* bitpos */ | |
1547 | complain_overflow_signed, /* complain_on_overflow */ | |
1548 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1549 | "R_PPC64_TPREL16_DS", /* name */ | |
1550 | FALSE, /* partial_inplace */ | |
1551 | 0, /* src_mask */ | |
1552 | 0xfffc, /* dst_mask */ | |
1553 | FALSE), /* pcrel_offset */ | |
1554 | ||
1555 | /* Like TPREL16_DS, but no overflow. */ | |
1556 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1557 | 0, /* rightshift */ | |
1558 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1559 | 16, /* bitsize */ | |
1560 | FALSE, /* pc_relative */ | |
1561 | 0, /* bitpos */ | |
1562 | complain_overflow_dont, /* complain_on_overflow */ | |
1563 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1564 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1565 | FALSE, /* partial_inplace */ | |
1566 | 0, /* src_mask */ | |
1567 | 0xfffc, /* dst_mask */ | |
1568 | FALSE), /* pcrel_offset */ | |
1569 | ||
1570 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1571 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1572 | to the first entry relative to the TOC base (r2). */ | |
1573 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1574 | 0, /* rightshift */ | |
1575 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1576 | 16, /* bitsize */ | |
1577 | FALSE, /* pc_relative */ | |
1578 | 0, /* bitpos */ | |
1579 | complain_overflow_signed, /* complain_on_overflow */ | |
1580 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1581 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1582 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1583 | 0, /* src_mask */ |
1584 | 0xffff, /* dst_mask */ | |
b34976b6 | 1585 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1586 | |
411e1bfb AM |
1587 | /* Like GOT_TLSGD16, but no overflow. */ |
1588 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1589 | 0, /* rightshift */ |
1590 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1591 | 16, /* bitsize */ | |
b34976b6 | 1592 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1593 | 0, /* bitpos */ |
1594 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1595 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1596 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1597 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1598 | 0, /* src_mask */ |
1599 | 0xffff, /* dst_mask */ | |
b34976b6 | 1600 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1601 | |
411e1bfb AM |
1602 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1603 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1604 | 16, /* rightshift */ |
1605 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1606 | 16, /* bitsize */ | |
b34976b6 | 1607 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1608 | 0, /* bitpos */ |
1609 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1610 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1611 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1612 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1613 | 0, /* src_mask */ |
1614 | 0xffff, /* dst_mask */ | |
b34976b6 | 1615 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1616 | |
411e1bfb AM |
1617 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1618 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1619 | 16, /* rightshift */ |
1620 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1621 | 16, /* bitsize */ | |
b34976b6 | 1622 | FALSE, /* pc_relative */ |
5bd4f169 | 1623 | 0, /* bitpos */ |
411e1bfb | 1624 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1625 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1626 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1627 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1628 | 0, /* src_mask */ |
1629 | 0xffff, /* dst_mask */ | |
b34976b6 | 1630 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1631 | |
411e1bfb AM |
1632 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1633 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1634 | first entry relative to the TOC base (r2). */ | |
1635 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1636 | 0, /* rightshift */ |
1637 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1638 | 16, /* bitsize */ | |
b34976b6 | 1639 | FALSE, /* pc_relative */ |
5bd4f169 | 1640 | 0, /* bitpos */ |
411e1bfb AM |
1641 | complain_overflow_signed, /* complain_on_overflow */ |
1642 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1643 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1644 | FALSE, /* partial_inplace */ |
d006db6c | 1645 | 0, /* src_mask */ |
411e1bfb | 1646 | 0xffff, /* dst_mask */ |
b34976b6 | 1647 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1648 | |
411e1bfb AM |
1649 | /* Like GOT_TLSLD16, but no overflow. */ |
1650 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1651 | 0, /* rightshift */ |
1652 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1653 | 16, /* bitsize */ | |
b34976b6 | 1654 | FALSE, /* pc_relative */ |
5bd4f169 | 1655 | 0, /* bitpos */ |
411e1bfb AM |
1656 | complain_overflow_dont, /* complain_on_overflow */ |
1657 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1658 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1659 | FALSE, /* partial_inplace */ |
d006db6c | 1660 | 0, /* src_mask */ |
411e1bfb | 1661 | 0xffff, /* dst_mask */ |
b34976b6 | 1662 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1663 | |
411e1bfb AM |
1664 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1665 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1666 | 16, /* rightshift */ | |
5bd4f169 AM |
1667 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1668 | 16, /* bitsize */ | |
b34976b6 | 1669 | FALSE, /* pc_relative */ |
5bd4f169 | 1670 | 0, /* bitpos */ |
411e1bfb | 1671 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1672 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1673 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1674 | FALSE, /* partial_inplace */ |
d006db6c | 1675 | 0, /* src_mask */ |
411e1bfb | 1676 | 0xffff, /* dst_mask */ |
b34976b6 | 1677 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1678 | |
411e1bfb AM |
1679 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1680 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1681 | 16, /* rightshift */ | |
5bd4f169 AM |
1682 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1683 | 16, /* bitsize */ | |
b34976b6 | 1684 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1685 | 0, /* bitpos */ |
1686 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1687 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1688 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1689 | FALSE, /* partial_inplace */ |
d006db6c | 1690 | 0, /* src_mask */ |
411e1bfb | 1691 | 0xffff, /* dst_mask */ |
b34976b6 | 1692 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1693 | |
411e1bfb AM |
1694 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1695 | the offset to the entry relative to the TOC base (r2). */ | |
1696 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1697 | 0, /* rightshift */ |
1698 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1699 | 16, /* bitsize */ | |
b34976b6 | 1700 | FALSE, /* pc_relative */ |
5bd4f169 | 1701 | 0, /* bitpos */ |
411e1bfb | 1702 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1703 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1704 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1705 | FALSE, /* partial_inplace */ |
d006db6c | 1706 | 0, /* src_mask */ |
5bd4f169 | 1707 | 0xfffc, /* dst_mask */ |
b34976b6 | 1708 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1709 | |
411e1bfb AM |
1710 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1711 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1712 | 0, /* rightshift */ |
c061c2d8 AM |
1713 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1714 | 16, /* bitsize */ | |
b34976b6 | 1715 | FALSE, /* pc_relative */ |
5bd4f169 | 1716 | 0, /* bitpos */ |
411e1bfb AM |
1717 | complain_overflow_dont, /* complain_on_overflow */ |
1718 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1719 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1720 | FALSE, /* partial_inplace */ |
d006db6c | 1721 | 0, /* src_mask */ |
c061c2d8 | 1722 | 0xfffc, /* dst_mask */ |
b34976b6 | 1723 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1724 | |
411e1bfb AM |
1725 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1726 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1727 | 16, /* rightshift */ | |
5bd4f169 AM |
1728 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1729 | 16, /* bitsize */ | |
b34976b6 | 1730 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1731 | 0, /* bitpos */ |
1732 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1733 | ppc64_elf_unhandled_reloc, /* special_function */ |
1734 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1735 | FALSE, /* partial_inplace */ |
d006db6c | 1736 | 0, /* src_mask */ |
411e1bfb | 1737 | 0xffff, /* dst_mask */ |
b34976b6 | 1738 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1739 | |
411e1bfb AM |
1740 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1741 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1742 | 16, /* rightshift */ | |
1743 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1744 | 16, /* bitsize */ | |
1745 | FALSE, /* pc_relative */ | |
1746 | 0, /* bitpos */ | |
1747 | complain_overflow_dont, /* complain_on_overflow */ | |
1748 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1749 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1750 | FALSE, /* partial_inplace */ | |
1751 | 0, /* src_mask */ | |
1752 | 0xffff, /* dst_mask */ | |
1753 | FALSE), /* pcrel_offset */ | |
1754 | ||
1755 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1756 | offset to the entry relative to the TOC base (r2). */ | |
1757 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1758 | 0, /* rightshift */ |
1759 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1760 | 16, /* bitsize */ | |
b34976b6 | 1761 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1762 | 0, /* bitpos */ |
1763 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1764 | ppc64_elf_unhandled_reloc, /* special_function */ |
1765 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1766 | FALSE, /* partial_inplace */ |
d006db6c | 1767 | 0, /* src_mask */ |
ad8e1ba5 | 1768 | 0xfffc, /* dst_mask */ |
b34976b6 | 1769 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1770 | |
411e1bfb AM |
1771 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1772 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1773 | 0, /* rightshift */ |
1774 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1775 | 16, /* bitsize */ | |
b34976b6 | 1776 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1777 | 0, /* bitpos */ |
1778 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1779 | ppc64_elf_unhandled_reloc, /* special_function */ |
1780 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1781 | FALSE, /* partial_inplace */ |
d006db6c | 1782 | 0, /* src_mask */ |
ad8e1ba5 | 1783 | 0xfffc, /* dst_mask */ |
b34976b6 | 1784 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1785 | |
411e1bfb AM |
1786 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1787 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1788 | 16, /* rightshift */ | |
5bd4f169 AM |
1789 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1790 | 16, /* bitsize */ | |
b34976b6 | 1791 | FALSE, /* pc_relative */ |
5bd4f169 | 1792 | 0, /* bitpos */ |
411e1bfb | 1793 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1794 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1795 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1796 | FALSE, /* partial_inplace */ |
d006db6c | 1797 | 0, /* src_mask */ |
411e1bfb | 1798 | 0xffff, /* dst_mask */ |
b34976b6 | 1799 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1800 | |
411e1bfb AM |
1801 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1802 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1803 | 16, /* rightshift */ | |
5bd4f169 AM |
1804 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1805 | 16, /* bitsize */ | |
b34976b6 | 1806 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1807 | 0, /* bitpos */ |
1808 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1809 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1810 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1811 | FALSE, /* partial_inplace */ |
d006db6c | 1812 | 0, /* src_mask */ |
411e1bfb | 1813 | 0xffff, /* dst_mask */ |
b34976b6 | 1814 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1815 | |
1816 | /* GNU extension to record C++ vtable hierarchy. */ | |
1817 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1818 | 0, /* rightshift */ | |
1819 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1820 | 0, /* bitsize */ | |
b34976b6 | 1821 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1822 | 0, /* bitpos */ |
1823 | complain_overflow_dont, /* complain_on_overflow */ | |
1824 | NULL, /* special_function */ | |
1825 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1826 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1827 | 0, /* src_mask */ |
1828 | 0, /* dst_mask */ | |
b34976b6 | 1829 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1830 | |
1831 | /* GNU extension to record C++ vtable member usage. */ | |
1832 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1833 | 0, /* rightshift */ | |
1834 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1835 | 0, /* bitsize */ | |
b34976b6 | 1836 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1837 | 0, /* bitpos */ |
1838 | complain_overflow_dont, /* complain_on_overflow */ | |
1839 | NULL, /* special_function */ | |
1840 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1841 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1842 | 0, /* src_mask */ |
1843 | 0, /* dst_mask */ | |
b34976b6 | 1844 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1845 | }; |
1846 | ||
1847 | \f | |
1848 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1849 | be done. */ | |
1850 | ||
1851 | static void | |
4ce794b7 | 1852 | ppc_howto_init (void) |
5bd4f169 AM |
1853 | { |
1854 | unsigned int i, type; | |
1855 | ||
1856 | for (i = 0; | |
1857 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1858 | i++) | |
1859 | { | |
1860 | type = ppc64_elf_howto_raw[i].type; | |
1861 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1862 | / sizeof (ppc64_elf_howto_table[0]))); | |
1863 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1864 | } | |
1865 | } | |
1866 | ||
1867 | static reloc_howto_type * | |
4ce794b7 AM |
1868 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1869 | bfd_reloc_code_real_type code) | |
5bd4f169 | 1870 | { |
411e1bfb | 1871 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1872 | |
1873 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1874 | /* Initialize howto table if needed. */ | |
1875 | ppc_howto_init (); | |
1876 | ||
4ce794b7 | 1877 | switch (code) |
5bd4f169 AM |
1878 | { |
1879 | default: | |
4ce794b7 | 1880 | return NULL; |
5bd4f169 | 1881 | |
411e1bfb AM |
1882 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1883 | break; | |
1884 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1885 | break; | |
1886 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1887 | break; | |
1888 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1889 | break; | |
1890 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1891 | break; | |
1892 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1893 | break; | |
1894 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1895 | break; |
411e1bfb | 1896 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1897 | break; |
411e1bfb | 1898 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1899 | break; |
411e1bfb | 1900 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1901 | break; |
411e1bfb | 1902 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1903 | break; |
411e1bfb | 1904 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1905 | break; |
411e1bfb | 1906 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1907 | break; |
411e1bfb | 1908 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1909 | break; |
411e1bfb | 1910 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1911 | break; |
411e1bfb | 1912 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1913 | break; |
411e1bfb | 1914 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1967 | break; |
411e1bfb | 1968 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1969 | break; |
411e1bfb | 1970 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1971 | break; |
411e1bfb | 1972 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1973 | break; |
411e1bfb | 1974 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1975 | break; |
411e1bfb | 1976 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1977 | break; |
411e1bfb | 1978 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1979 | break; |
411e1bfb | 1980 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 1981 | break; |
411e1bfb | 1982 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 1983 | break; |
411e1bfb | 1984 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 1985 | break; |
411e1bfb | 1986 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 1987 | break; |
411e1bfb | 1988 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 1989 | break; |
411e1bfb | 1990 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 1991 | break; |
411e1bfb | 1992 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 1993 | break; |
411e1bfb | 1994 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 1995 | break; |
411e1bfb | 1996 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 1997 | break; |
411e1bfb | 1998 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 1999 | break; |
411e1bfb | 2000 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 2001 | break; |
411e1bfb | 2002 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2003 | break; |
411e1bfb | 2004 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2005 | break; |
411e1bfb | 2006 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2007 | break; |
411e1bfb | 2008 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2009 | break; |
411e1bfb | 2010 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2011 | break; |
411e1bfb | 2012 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2013 | break; |
411e1bfb AM |
2014 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2015 | break; | |
2016 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2017 | break; | |
2018 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2019 | break; | |
2020 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2021 | break; | |
2022 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2023 | break; | |
2024 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2025 | break; | |
2026 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2027 | break; | |
2028 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2029 | break; | |
2030 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2031 | break; | |
2032 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2033 | break; | |
2034 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2035 | break; | |
2036 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2037 | break; | |
2038 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2039 | break; | |
2040 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2041 | break; | |
2042 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2043 | break; | |
2044 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2045 | break; | |
2046 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2047 | break; | |
2048 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2049 | break; | |
2050 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2051 | break; | |
2052 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2053 | break; | |
2054 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2055 | break; | |
2056 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2057 | break; | |
2058 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2059 | break; | |
2060 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2061 | break; | |
2062 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2063 | break; | |
2064 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2065 | break; | |
2066 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2067 | break; | |
2068 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2069 | break; | |
2070 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2071 | break; | |
2072 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2073 | break; | |
2074 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2075 | break; | |
2076 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2077 | break; | |
2078 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2079 | break; | |
2080 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2081 | break; | |
2082 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2083 | break; |
2084 | } | |
2085 | ||
4ce794b7 | 2086 | return ppc64_elf_howto_table[r]; |
5bd4f169 AM |
2087 | }; |
2088 | ||
2089 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2090 | ||
2091 | static void | |
4ce794b7 AM |
2092 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
2093 | Elf_Internal_Rela *dst) | |
5bd4f169 | 2094 | { |
65f38f15 AM |
2095 | unsigned int type; |
2096 | ||
ef60b7ff | 2097 | /* Initialize howto table if needed. */ |
5bd4f169 | 2098 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2099 | ppc_howto_init (); |
2100 | ||
65f38f15 AM |
2101 | type = ELF64_R_TYPE (dst->r_info); |
2102 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2103 | / sizeof (ppc64_elf_howto_table[0]))); | |
2104 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2105 | } |
2106 | ||
04c9666a | 2107 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2108 | |
2109 | static bfd_reloc_status_type | |
4ce794b7 AM |
2110 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2111 | void *data, asection *input_section, | |
2112 | bfd *output_bfd, char **error_message) | |
5bd4f169 | 2113 | { |
805fc799 AM |
2114 | /* If this is a relocatable link (output_bfd test tells us), just |
2115 | call the generic function. Any adjustment will be done at final | |
2116 | link time. */ | |
2117 | if (output_bfd != NULL) | |
cedb70c5 | 2118 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2119 | input_section, output_bfd, error_message); |
2120 | ||
2121 | /* Adjust the addend for sign extension of the low 16 bits. | |
2122 | We won't actually be using the low 16 bits, so trashing them | |
2123 | doesn't matter. */ | |
2124 | reloc_entry->addend += 0x8000; | |
2125 | return bfd_reloc_continue; | |
2126 | } | |
5bd4f169 | 2127 | |
805fc799 | 2128 | static bfd_reloc_status_type |
4ce794b7 AM |
2129 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2130 | void *data, asection *input_section, | |
2131 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2132 | { |
2133 | long insn; | |
04c9666a | 2134 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2135 | bfd_size_type octets; |
2136 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2137 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2138 | |
2139 | /* If this is a relocatable link (output_bfd test tells us), just | |
2140 | call the generic function. Any adjustment will be done at final | |
2141 | link time. */ | |
5bd4f169 | 2142 | if (output_bfd != NULL) |
cedb70c5 | 2143 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2144 | input_section, output_bfd, error_message); |
2145 | ||
2146 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2147 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2148 | insn &= ~(0x01 << 21); | |
4ce794b7 | 2149 | r_type = reloc_entry->howto->type; |
805fc799 AM |
2150 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2151 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2152 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2153 | |
2154 | if (is_power4) | |
5bd4f169 | 2155 | { |
805fc799 AM |
2156 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2157 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2158 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2159 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2160 | insn |= 0x02 << 21; | |
2161 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2162 | insn |= 0x08 << 21; | |
2163 | else | |
2164 | return bfd_reloc_continue; | |
5bd4f169 | 2165 | } |
805fc799 AM |
2166 | else |
2167 | { | |
2168 | bfd_vma target = 0; | |
2169 | bfd_vma from; | |
5bd4f169 | 2170 | |
805fc799 AM |
2171 | if (!bfd_is_com_section (symbol->section)) |
2172 | target = symbol->value; | |
2173 | target += symbol->section->output_section->vma; | |
2174 | target += symbol->section->output_offset; | |
2175 | target += reloc_entry->addend; | |
5bd4f169 | 2176 | |
805fc799 AM |
2177 | from = (reloc_entry->address |
2178 | + input_section->output_offset | |
2179 | + input_section->output_section->vma); | |
5bd4f169 | 2180 | |
805fc799 AM |
2181 | /* Invert 'y' bit if not the default. */ |
2182 | if ((bfd_signed_vma) (target - from) < 0) | |
2183 | insn ^= 0x01 << 21; | |
2184 | } | |
4ce794b7 | 2185 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
805fc799 AM |
2186 | return bfd_reloc_continue; |
2187 | } | |
5bd4f169 | 2188 | |
805fc799 | 2189 | static bfd_reloc_status_type |
4ce794b7 AM |
2190 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2191 | void *data, asection *input_section, | |
2192 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2193 | { |
2194 | /* If this is a relocatable link (output_bfd test tells us), just | |
2195 | call the generic function. Any adjustment will be done at final | |
2196 | link time. */ | |
2197 | if (output_bfd != NULL) | |
cedb70c5 | 2198 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2199 | input_section, output_bfd, error_message); |
5bd4f169 | 2200 | |
805fc799 AM |
2201 | /* Subtract the symbol section base address. */ |
2202 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2203 | return bfd_reloc_continue; |
2204 | } | |
2205 | ||
805fc799 | 2206 | static bfd_reloc_status_type |
4ce794b7 AM |
2207 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2208 | void *data, asection *input_section, | |
2209 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2210 | { |
2211 | /* If this is a relocatable link (output_bfd test tells us), just | |
2212 | call the generic function. Any adjustment will be done at final | |
2213 | link time. */ | |
2214 | if (output_bfd != NULL) | |
cedb70c5 | 2215 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2216 | input_section, output_bfd, error_message); |
2217 | ||
2218 | /* Subtract the symbol section base address. */ | |
2219 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2220 | ||
2221 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2222 | reloc_entry->addend += 0x8000; | |
2223 | return bfd_reloc_continue; | |
2224 | } | |
2225 | ||
2226 | static bfd_reloc_status_type | |
4ce794b7 AM |
2227 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2228 | void *data, asection *input_section, | |
2229 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2230 | { |
2231 | bfd_vma TOCstart; | |
2232 | ||
2233 | /* If this is a relocatable link (output_bfd test tells us), just | |
2234 | call the generic function. Any adjustment will be done at final | |
2235 | link time. */ | |
2236 | if (output_bfd != NULL) | |
cedb70c5 | 2237 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2238 | input_section, output_bfd, error_message); |
2239 | ||
2240 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2241 | if (TOCstart == 0) | |
2242 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2243 | ||
2244 | /* Subtract the TOC base address. */ | |
2245 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2246 | return bfd_reloc_continue; | |
2247 | } | |
2248 | ||
2249 | static bfd_reloc_status_type | |
4ce794b7 AM |
2250 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2251 | void *data, asection *input_section, | |
2252 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2253 | { |
2254 | bfd_vma TOCstart; | |
2255 | ||
2256 | /* If this is a relocatable link (output_bfd test tells us), just | |
2257 | call the generic function. Any adjustment will be done at final | |
2258 | link time. */ | |
2259 | if (output_bfd != NULL) | |
cedb70c5 | 2260 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2261 | input_section, output_bfd, error_message); |
2262 | ||
2263 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2264 | if (TOCstart == 0) | |
2265 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2266 | ||
2267 | /* Subtract the TOC base address. */ | |
2268 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2269 | ||
2270 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2271 | reloc_entry->addend += 0x8000; | |
2272 | return bfd_reloc_continue; | |
2273 | } | |
2274 | ||
2275 | static bfd_reloc_status_type | |
4ce794b7 AM |
2276 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2277 | void *data, asection *input_section, | |
2278 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2279 | { |
2280 | bfd_vma TOCstart; | |
2281 | bfd_size_type octets; | |
2282 | ||
2283 | /* If this is a relocatable link (output_bfd test tells us), just | |
2284 | call the generic function. Any adjustment will be done at final | |
2285 | link time. */ | |
2286 | if (output_bfd != NULL) | |
cedb70c5 | 2287 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2288 | input_section, output_bfd, error_message); |
2289 | ||
2290 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2291 | if (TOCstart == 0) | |
2292 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2293 | ||
2294 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2295 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2296 | return bfd_reloc_ok; | |
2297 | } | |
2298 | ||
2299 | static bfd_reloc_status_type | |
4ce794b7 AM |
2300 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2301 | void *data, asection *input_section, | |
2302 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2303 | { |
2304 | /* If this is a relocatable link (output_bfd test tells us), just | |
2305 | call the generic function. Any adjustment will be done at final | |
2306 | link time. */ | |
2307 | if (output_bfd != NULL) | |
cedb70c5 | 2308 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2309 | input_section, output_bfd, error_message); |
2310 | ||
2311 | if (error_message != NULL) | |
2312 | { | |
2313 | static char buf[60]; | |
2314 | sprintf (buf, "generic linker can't handle %s", | |
2315 | reloc_entry->howto->name); | |
2316 | *error_message = buf; | |
2317 | } | |
2318 | return bfd_reloc_dangerous; | |
2319 | } | |
2320 | ||
e717da7e AM |
2321 | struct ppc64_elf_obj_tdata |
2322 | { | |
2323 | struct elf_obj_tdata elf; | |
2324 | ||
2325 | /* Shortcuts to dynamic linker sections. */ | |
2326 | asection *got; | |
2327 | asection *relgot; | |
2328 | ||
2329 | /* TLS local dynamic got entry handling. Suppose for multiple GOT | |
2330 | sections means we potentially need one of these for each input bfd. */ | |
2331 | union { | |
2332 | bfd_signed_vma refcount; | |
2333 | bfd_vma offset; | |
2334 | } tlsld_got; | |
2335 | }; | |
2336 | ||
2337 | #define ppc64_elf_tdata(bfd) \ | |
2338 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
2339 | ||
2340 | #define ppc64_tlsld_got(bfd) \ | |
2341 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
2342 | ||
2343 | /* Override the generic function because we store some extras. */ | |
2344 | ||
2345 | static bfd_boolean | |
2346 | ppc64_elf_mkobject (bfd *abfd) | |
2347 | { | |
2348 | bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata); | |
2349 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
2350 | if (abfd->tdata.any == NULL) | |
2351 | return FALSE; | |
2352 | return TRUE; | |
2353 | } | |
2354 | ||
feee612b AM |
2355 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2356 | default is 32 bit. */ | |
2357 | ||
b34976b6 | 2358 | static bfd_boolean |
4ce794b7 | 2359 | ppc64_elf_object_p (bfd *abfd) |
feee612b AM |
2360 | { |
2361 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2362 | { | |
2363 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2364 | ||
2365 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2366 | { | |
2367 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2368 | abfd->arch_info = abfd->arch_info->next; | |
2369 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2370 | } | |
2371 | } | |
b34976b6 | 2372 | return TRUE; |
feee612b AM |
2373 | } |
2374 | ||
5bd4f169 AM |
2375 | /* Merge backend specific data from an object file to the output |
2376 | object file when linking. */ | |
2f6d9989 | 2377 | |
b34976b6 | 2378 | static bfd_boolean |
4ce794b7 | 2379 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5bd4f169 | 2380 | { |
5bd4f169 AM |
2381 | /* Check if we have the same endianess. */ |
2382 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2383 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2384 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2385 | { | |
2386 | const char *msg; | |
2387 | ||
2388 | if (bfd_big_endian (ibfd)) | |
4ce794b7 AM |
2389 | msg = _("%s: compiled for a big endian system " |
2390 | "and target is little endian"); | |
5bd4f169 | 2391 | else |
4ce794b7 AM |
2392 | msg = _("%s: compiled for a little endian system " |
2393 | "and target is big endian"); | |
5bd4f169 | 2394 | |
8f615d07 | 2395 | (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd)); |
5bd4f169 AM |
2396 | |
2397 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2398 | return FALSE; |
5bd4f169 AM |
2399 | } |
2400 | ||
b34976b6 | 2401 | return TRUE; |
5bd4f169 | 2402 | } |
f0abc2a1 | 2403 | |
5d35169e AM |
2404 | /* Add extra PPC sections. */ |
2405 | ||
2406 | static struct bfd_elf_special_section const ppc64_elf_special_sections[]= | |
2407 | { | |
7dcb9820 AM |
2408 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2409 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2410 | { ".plt", 4, 0, SHT_NOBITS, 0 }, | |
2411 | { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2412 | { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2413 | { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2414 | { NULL, 0, 0, 0, 0 } | |
5d35169e AM |
2415 | }; |
2416 | ||
f0abc2a1 AM |
2417 | struct _ppc64_elf_section_data |
2418 | { | |
2419 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2420 | |
2421 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2422 | union |
2423 | { | |
411e1bfb | 2424 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2425 | asection **func_sec; |
411e1bfb | 2426 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2427 | long *adjust; |
2428 | } opd; | |
411e1bfb AM |
2429 | |
2430 | /* An array for toc sections, indexed by offset/8. | |
2431 | Specifies the relocation symbol index used at a given toc offset. */ | |
2432 | unsigned *t_symndx; | |
f0abc2a1 AM |
2433 | }; |
2434 | ||
2435 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2436 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2437 | |
2438 | static bfd_boolean | |
4ce794b7 | 2439 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
f0abc2a1 AM |
2440 | { |
2441 | struct _ppc64_elf_section_data *sdata; | |
2442 | bfd_size_type amt = sizeof (*sdata); | |
2443 | ||
4ce794b7 | 2444 | sdata = bfd_zalloc (abfd, amt); |
f0abc2a1 AM |
2445 | if (sdata == NULL) |
2446 | return FALSE; | |
4ce794b7 | 2447 | sec->used_by_bfd = sdata; |
f0abc2a1 AM |
2448 | |
2449 | return _bfd_elf_new_section_hook (abfd, sec); | |
2450 | } | |
5bd4f169 | 2451 | \f |
65f38f15 AM |
2452 | /* The following functions are specific to the ELF linker, while |
2453 | functions above are used generally. Those named ppc64_elf_* are | |
2454 | called by the main ELF linker code. They appear in this file more | |
2455 | or less in the order in which they are called. eg. | |
2456 | ppc64_elf_check_relocs is called early in the link process, | |
2457 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2458 | called. |
2459 | ||
2460 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2461 | functions have both a function code symbol and a function descriptor | |
2462 | symbol. A call to foo in a relocatable object file looks like: | |
2463 | ||
2464 | . .text | |
2465 | . x: | |
2466 | . bl .foo | |
2467 | . nop | |
2468 | ||
2469 | The function definition in another object file might be: | |
2470 | ||
2471 | . .section .opd | |
2472 | . foo: .quad .foo | |
2473 | . .quad .TOC.@tocbase | |
2474 | . .quad 0 | |
2475 | . | |
2476 | . .text | |
2477 | . .foo: blr | |
2478 | ||
2479 | When the linker resolves the call during a static link, the branch | |
2480 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2481 | If the function definition is in a shared library, things are a little | |
2482 | different: The call goes via a plt call stub, the opd information gets | |
2483 | copied to the plt, and the linker patches the nop. | |
2484 | ||
2485 | . x: | |
2486 | . bl .foo_stub | |
2487 | . ld 2,40(1) | |
2488 | . | |
2489 | . | |
2490 | . .foo_stub: | |
2491 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2492 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2493 | . std 2,40(1) # this is the general idea |
2494 | . ld 11,0(12) | |
2495 | . ld 2,8(12) | |
2496 | . mtctr 11 | |
2497 | . ld 11,16(12) | |
2498 | . bctr | |
2499 | . | |
2500 | . .section .plt | |
2501 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2502 | ||
2503 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2504 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2505 | copying. | |
2506 | ||
2507 | What are the difficulties here? Well, firstly, the relocations | |
2508 | examined by the linker in check_relocs are against the function code | |
2509 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2510 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2511 | to carefully copy dynamic link information from one symbol to the other. | |
2512 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2513 | symbol as is normal for most other backends. We need foo dynamic | |
2514 | instead, at least for an application final link. However, when | |
2515 | creating a shared library containing foo, we need to have both symbols | |
2516 | dynamic so that references to .foo are satisfied during the early | |
2517 | stages of linking. Otherwise the linker might decide to pull in a | |
41bd81ab | 2518 | definition from some other object, eg. a static library. */ |
65f38f15 AM |
2519 | |
2520 | /* The linker needs to keep track of the number of relocs that it | |
2521 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2522 | This is so that it can later discard them if they are found to be | |
2523 | unnecessary. We store the information in a field extending the | |
2524 | regular ELF linker hash table. */ | |
2525 | ||
2526 | struct ppc_dyn_relocs | |
2527 | { | |
2528 | struct ppc_dyn_relocs *next; | |
2529 | ||
2530 | /* The input section of the reloc. */ | |
2531 | asection *sec; | |
2532 | ||
2533 | /* Total number of relocs copied for the input section. */ | |
2534 | bfd_size_type count; | |
2535 | ||
2536 | /* Number of pc-relative relocs copied for the input section. */ | |
2537 | bfd_size_type pc_count; | |
2538 | }; | |
2539 | ||
411e1bfb AM |
2540 | /* Track GOT entries needed for a given symbol. We might need more |
2541 | than one got entry per symbol. */ | |
2542 | struct got_entry | |
2543 | { | |
2544 | struct got_entry *next; | |
2545 | ||
e7b938ca | 2546 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
2547 | bfd_vma addend; |
2548 | ||
e717da7e AM |
2549 | /* Unlike other ELF targets, we use separate GOT entries for the same |
2550 | symbol referenced from different input files. This is to support | |
2551 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
2552 | from one input file to another. | |
2553 | ||
2554 | Point to the BFD owning this GOT entry. */ | |
2555 | bfd *owner; | |
2556 | ||
2557 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
2558 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
2559 | char tls_type; | |
2560 | ||
e7b938ca | 2561 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
2562 | union |
2563 | { | |
2564 | bfd_signed_vma refcount; | |
2565 | bfd_vma offset; | |
2566 | } got; | |
411e1bfb AM |
2567 | }; |
2568 | ||
2569 | /* The same for PLT. */ | |
2570 | struct plt_entry | |
2571 | { | |
2572 | struct plt_entry *next; | |
2573 | ||
2574 | bfd_vma addend; | |
2575 | ||
2576 | union | |
2577 | { | |
2578 | bfd_signed_vma refcount; | |
2579 | bfd_vma offset; | |
2580 | } plt; | |
2581 | }; | |
2582 | ||
65f38f15 | 2583 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
2584 | selects those that must be copied when linking a shared library, |
2585 | even when the symbol is local. */ | |
65f38f15 | 2586 | |
411e1bfb | 2587 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
2588 | ((RTYPE) != R_PPC64_REL32 \ |
2589 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 2590 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 2591 | |
f4656909 AM |
2592 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2593 | copying dynamic variables from a shared lib into an app's dynbss | |
2594 | section, and instead use a dynamic relocation to point into the | |
5d35169e AM |
2595 | shared lib. With code that gcc generates, it's vital that this be |
2596 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
2597 | the address of a function descriptor, which resides in the .opd | |
2598 | section. gcc uses the descriptor directly rather than going via the | |
2599 | GOT as some other ABI's do, which means that initialized function | |
2600 | pointers must reference the descriptor. Thus, a function pointer | |
2601 | initialized to the address of a function in a shared library will | |
2602 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
2603 | redefines the function desctriptor symbol to point to the copy. This | |
2604 | presents a problem as a plt entry for that function is also | |
2605 | initialized from the function descriptor symbol and the copy reloc | |
2606 | may not be initialized first. */ | |
a23b6845 | 2607 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 2608 | |
721956f4 AM |
2609 | /* Section name for stubs is the associated section name plus this |
2610 | string. */ | |
2611 | #define STUB_SUFFIX ".stub" | |
2612 | ||
2613 | /* Linker stubs. | |
2614 | ppc_stub_long_branch: | |
2615 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
2616 | destination, but a 24 bit branch in a stub section will reach. | |
2617 | . b dest | |
2618 | ||
2619 | ppc_stub_plt_branch: | |
2620 | Similar to the above, but a 24 bit branch in the stub section won't | |
2621 | reach its destination. | |
87e226ce AM |
2622 | . addis %r12,%r2,xxx@toc@ha |
2623 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
2624 | . mtctr %r11 |
2625 | . bctr | |
2626 | ||
2627 | ppc_stub_plt_call: | |
2628 | Used to call a function in a shared library. | |
87e226ce | 2629 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 2630 | . std %r2,40(%r1) |
87e226ce AM |
2631 | . ld %r11,xxx+0@toc@l(%r12) |
2632 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 2633 | . mtctr %r11 |
87e226ce | 2634 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 2635 | . bctr |
ad8e1ba5 AM |
2636 | |
2637 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
2638 | code to adjust the value and save r2 to support multiple toc sections. | |
2639 | A ppc_stub_long_branch with an r2 offset looks like: | |
2640 | . std %r2,40(%r1) | |
2641 | . addis %r2,%r2,off@ha | |
2642 | . addi %r2,%r2,off@l | |
2643 | . b dest | |
2644 | ||
2645 | A ppc_stub_plt_branch with an r2 offset looks like: | |
2646 | . std %r2,40(%r1) | |
2647 | . addis %r12,%r2,xxx@toc@ha | |
2648 | . ld %r11,xxx@toc@l(%r12) | |
2649 | . addis %r2,%r2,off@ha | |
2650 | . addi %r2,%r2,off@l | |
2651 | . mtctr %r11 | |
2652 | . bctr | |
721956f4 AM |
2653 | */ |
2654 | ||
2655 | enum ppc_stub_type { | |
2656 | ppc_stub_none, | |
2657 | ppc_stub_long_branch, | |
ad8e1ba5 | 2658 | ppc_stub_long_branch_r2off, |
721956f4 | 2659 | ppc_stub_plt_branch, |
ad8e1ba5 | 2660 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
2661 | ppc_stub_plt_call |
2662 | }; | |
2663 | ||
2664 | struct ppc_stub_hash_entry { | |
2665 | ||
2666 | /* Base hash table entry structure. */ | |
2667 | struct bfd_hash_entry root; | |
2668 | ||
ad8e1ba5 AM |
2669 | enum ppc_stub_type stub_type; |
2670 | ||
721956f4 AM |
2671 | /* The stub section. */ |
2672 | asection *stub_sec; | |
2673 | ||
2674 | /* Offset within stub_sec of the beginning of this stub. */ | |
2675 | bfd_vma stub_offset; | |
2676 | ||
2677 | /* Given the symbol's value and its section we can determine its final | |
2678 | value when building the stubs (so the stub knows where to jump. */ | |
2679 | bfd_vma target_value; | |
2680 | asection *target_section; | |
2681 | ||
721956f4 AM |
2682 | /* The symbol table entry, if any, that this was derived from. */ |
2683 | struct ppc_link_hash_entry *h; | |
2684 | ||
411e1bfb AM |
2685 | /* And the reloc addend that this was derived from. */ |
2686 | bfd_vma addend; | |
2687 | ||
721956f4 AM |
2688 | /* Where this stub is being called from, or, in the case of combined |
2689 | stub sections, the first input section in the group. */ | |
2690 | asection *id_sec; | |
2691 | }; | |
2692 | ||
2693 | struct ppc_branch_hash_entry { | |
2694 | ||
2695 | /* Base hash table entry structure. */ | |
2696 | struct bfd_hash_entry root; | |
2697 | ||
2698 | /* Offset within .branch_lt. */ | |
2699 | unsigned int offset; | |
2700 | ||
2701 | /* Generation marker. */ | |
2702 | unsigned int iter; | |
2703 | }; | |
65f38f15 AM |
2704 | |
2705 | struct ppc_link_hash_entry | |
2706 | { | |
2707 | struct elf_link_hash_entry elf; | |
2708 | ||
721956f4 AM |
2709 | /* A pointer to the most recently used stub hash entry against this |
2710 | symbol. */ | |
2711 | struct ppc_stub_hash_entry *stub_cache; | |
2712 | ||
65f38f15 AM |
2713 | /* Track dynamic relocs copied for this symbol. */ |
2714 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 2715 | |
721956f4 AM |
2716 | /* Link between function code and descriptor symbols. */ |
2717 | struct elf_link_hash_entry *oh; | |
2718 | ||
e86ce104 AM |
2719 | /* Flag function code and descriptor symbols. */ |
2720 | unsigned int is_func:1; | |
2721 | unsigned int is_func_descriptor:1; | |
1e2f5b6e | 2722 | unsigned int is_entry:1; |
411e1bfb AM |
2723 | |
2724 | /* Contexts in which symbol is used in the GOT (or TOC). | |
e7b938ca AM |
2725 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
2726 | corresponding relocs are encountered during check_relocs. | |
2727 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2728 | indicate the corresponding GOT entry type is not needed. | |
2729 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
2730 | a TPREL one. We use a separate flag rather than setting TPREL | |
2731 | just for convenience in distinguishing the two cases. */ | |
2732 | #define TLS_GD 1 /* GD reloc. */ | |
2733 | #define TLS_LD 2 /* LD reloc. */ | |
2734 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2735 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2736 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2737 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
2738 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
2739 | char tls_mask; | |
65f38f15 AM |
2740 | }; |
2741 | ||
2742 | /* ppc64 ELF linker hash table. */ | |
2743 | ||
2744 | struct ppc_link_hash_table | |
2745 | { | |
2746 | struct elf_link_hash_table elf; | |
2747 | ||
721956f4 AM |
2748 | /* The stub hash table. */ |
2749 | struct bfd_hash_table stub_hash_table; | |
2750 | ||
2751 | /* Another hash table for plt_branch stubs. */ | |
2752 | struct bfd_hash_table branch_hash_table; | |
2753 | ||
2754 | /* Linker stub bfd. */ | |
2755 | bfd *stub_bfd; | |
2756 | ||
2757 | /* Linker call-backs. */ | |
4ce794b7 AM |
2758 | asection * (*add_stub_section) (const char *, asection *); |
2759 | void (*layout_sections_again) (void); | |
721956f4 AM |
2760 | |
2761 | /* Array to keep track of which stub sections have been created, and | |
2762 | information on stub grouping. */ | |
2763 | struct map_stub { | |
2764 | /* This is the section to which stubs in the group will be attached. */ | |
2765 | asection *link_sec; | |
2766 | /* The stub section. */ | |
2767 | asection *stub_sec; | |
ad8e1ba5 AM |
2768 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
2769 | bfd_vma toc_off; | |
721956f4 AM |
2770 | } *stub_group; |
2771 | ||
ad8e1ba5 AM |
2772 | /* Support for multiple toc sections. */ |
2773 | unsigned int no_multi_toc; | |
2774 | unsigned int multi_toc_needed; | |
2775 | ||
2776 | /* Temp used when calculating TOC pointers. */ | |
2777 | bfd_vma toc_curr; | |
2778 | ||
8f3bab57 AM |
2779 | /* Highest input section id. */ |
2780 | int top_id; | |
2781 | ||
734b6cf9 AM |
2782 | /* Highest output section index. */ |
2783 | int top_index; | |
2784 | ||
2785 | /* List of input sections for each output section. */ | |
2786 | asection **input_list; | |
721956f4 | 2787 | |
65f38f15 | 2788 | /* Short-cuts to get to dynamic linker sections. */ |
4ce794b7 | 2789 | asection *got; |
4ce794b7 AM |
2790 | asection *plt; |
2791 | asection *relplt; | |
2792 | asection *dynbss; | |
2793 | asection *relbss; | |
2794 | asection *glink; | |
82bd7b59 | 2795 | asection *sfpr; |
4ce794b7 AM |
2796 | asection *brlt; |
2797 | asection *relbrlt; | |
ec338859 | 2798 | |
411e1bfb AM |
2799 | /* Short-cut to first output tls section. */ |
2800 | asection *tls_sec; | |
2801 | ||
2802 | /* Shortcut to .__tls_get_addr. */ | |
2803 | struct elf_link_hash_entry *tls_get_addr; | |
2804 | ||
9b5ecbd0 AM |
2805 | /* Statistics. */ |
2806 | unsigned long stub_count[ppc_stub_plt_call]; | |
2807 | ||
ad8e1ba5 AM |
2808 | /* Set if we should emit symbols for stubs. */ |
2809 | unsigned int emit_stub_syms; | |
2810 | ||
5d1634d7 | 2811 | /* Set on error. */ |
721956f4 AM |
2812 | unsigned int stub_error; |
2813 | ||
2814 | /* Flag set when small branches are detected. Used to | |
2815 | select suitable defaults for the stub group size. */ | |
2816 | unsigned int has_14bit_branch; | |
2817 | ||
805fc799 AM |
2818 | /* Set if we detect a reference undefined weak symbol. */ |
2819 | unsigned int have_undefweak; | |
2820 | ||
721956f4 AM |
2821 | /* Incremented every time we size stubs. */ |
2822 | unsigned int stub_iteration; | |
5d1634d7 | 2823 | |
ec338859 AM |
2824 | /* Small local sym to section mapping cache. */ |
2825 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
2826 | }; |
2827 | ||
2828 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ | |
2829 | ||
2830 | #define ppc_hash_table(p) \ | |
2831 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
2832 | ||
721956f4 AM |
2833 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
2834 | ((struct ppc_stub_hash_entry *) \ | |
2835 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2836 | ||
2837 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
2838 | ((struct ppc_branch_hash_entry *) \ | |
2839 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2840 | ||
2841 | /* Create an entry in the stub hash table. */ | |
2842 | ||
2843 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2844 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
2845 | struct bfd_hash_table *table, | |
2846 | const char *string) | |
721956f4 AM |
2847 | { |
2848 | /* Allocate the structure if it has not already been allocated by a | |
2849 | subclass. */ | |
2850 | if (entry == NULL) | |
2851 | { | |
2852 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
2853 | if (entry == NULL) | |
2854 | return entry; | |
2855 | } | |
2856 | ||
2857 | /* Call the allocation method of the superclass. */ | |
2858 | entry = bfd_hash_newfunc (entry, table, string); | |
2859 | if (entry != NULL) | |
2860 | { | |
2861 | struct ppc_stub_hash_entry *eh; | |
2862 | ||
2863 | /* Initialize the local fields. */ | |
2864 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 2865 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
2866 | eh->stub_sec = NULL; |
2867 | eh->stub_offset = 0; | |
2868 | eh->target_value = 0; | |
2869 | eh->target_section = NULL; | |
721956f4 AM |
2870 | eh->h = NULL; |
2871 | eh->id_sec = NULL; | |
2872 | } | |
2873 | ||
2874 | return entry; | |
2875 | } | |
2876 | ||
2877 | /* Create an entry in the branch hash table. */ | |
2878 | ||
2879 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2880 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
2881 | struct bfd_hash_table *table, | |
2882 | const char *string) | |
721956f4 AM |
2883 | { |
2884 | /* Allocate the structure if it has not already been allocated by a | |
2885 | subclass. */ | |
2886 | if (entry == NULL) | |
2887 | { | |
2888 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
2889 | if (entry == NULL) | |
2890 | return entry; | |
2891 | } | |
2892 | ||
2893 | /* Call the allocation method of the superclass. */ | |
2894 | entry = bfd_hash_newfunc (entry, table, string); | |
2895 | if (entry != NULL) | |
2896 | { | |
2897 | struct ppc_branch_hash_entry *eh; | |
2898 | ||
2899 | /* Initialize the local fields. */ | |
2900 | eh = (struct ppc_branch_hash_entry *) entry; | |
2901 | eh->offset = 0; | |
2902 | eh->iter = 0; | |
2903 | } | |
2904 | ||
2905 | return entry; | |
2906 | } | |
2907 | ||
65f38f15 AM |
2908 | /* Create an entry in a ppc64 ELF linker hash table. */ |
2909 | ||
2910 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2911 | link_hash_newfunc (struct bfd_hash_entry *entry, |
2912 | struct bfd_hash_table *table, | |
2913 | const char *string) | |
65f38f15 AM |
2914 | { |
2915 | /* Allocate the structure if it has not already been allocated by a | |
2916 | subclass. */ | |
2917 | if (entry == NULL) | |
2918 | { | |
2919 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
2920 | if (entry == NULL) | |
2921 | return entry; | |
2922 | } | |
2923 | ||
2924 | /* Call the allocation method of the superclass. */ | |
2925 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
2926 | if (entry != NULL) | |
2927 | { | |
2928 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
2929 | ||
721956f4 | 2930 | eh->stub_cache = NULL; |
65f38f15 | 2931 | eh->dyn_relocs = NULL; |
721956f4 | 2932 | eh->oh = NULL; |
e86ce104 AM |
2933 | eh->is_func = 0; |
2934 | eh->is_func_descriptor = 0; | |
1e2f5b6e | 2935 | eh->is_entry = 0; |
e7b938ca | 2936 | eh->tls_mask = 0; |
65f38f15 AM |
2937 | } |
2938 | ||
2939 | return entry; | |
2940 | } | |
2941 | ||
2942 | /* Create a ppc64 ELF linker hash table. */ | |
2943 | ||
2944 | static struct bfd_link_hash_table * | |
4ce794b7 | 2945 | ppc64_elf_link_hash_table_create (bfd *abfd) |
65f38f15 AM |
2946 | { |
2947 | struct ppc_link_hash_table *htab; | |
2948 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
2949 | ||
4ce794b7 | 2950 | htab = bfd_zmalloc (amt); |
65f38f15 AM |
2951 | if (htab == NULL) |
2952 | return NULL; | |
2953 | ||
2954 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
2955 | { | |
e2d34d7d | 2956 | free (htab); |
65f38f15 AM |
2957 | return NULL; |
2958 | } | |
2959 | ||
721956f4 AM |
2960 | /* Init the stub hash table too. */ |
2961 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
2962 | return NULL; | |
2963 | ||
2964 | /* And the branch hash table. */ | |
2965 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
2966 | return NULL; | |
2967 | ||
3254fd24 AM |
2968 | /* Initializing two fields of the union is just cosmetic. We really |
2969 | only care about glist, but when compiled on a 32-bit host the | |
2970 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
2971 | debugger inspection of these fields look nicer. */ | |
2972 | htab->elf.init_refcount.refcount = 0; | |
2973 | htab->elf.init_refcount.glist = NULL; | |
2974 | htab->elf.init_offset.offset = 0; | |
2975 | htab->elf.init_offset.glist = NULL; | |
2976 | ||
65f38f15 AM |
2977 | return &htab->elf.root; |
2978 | } | |
2979 | ||
721956f4 AM |
2980 | /* Free the derived linker hash table. */ |
2981 | ||
2982 | static void | |
4ce794b7 | 2983 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
721956f4 AM |
2984 | { |
2985 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
2986 | ||
2987 | bfd_hash_table_free (&ret->stub_hash_table); | |
2988 | bfd_hash_table_free (&ret->branch_hash_table); | |
2989 | _bfd_generic_link_hash_table_free (hash); | |
2990 | } | |
2991 | ||
e717da7e AM |
2992 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
2993 | ||
2994 | void | |
2995 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) | |
2996 | { | |
2997 | struct ppc_link_hash_table *htab; | |
2998 | ||
2999 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
3000 | ||
3001 | /* Always hook our dynamic sections into the first bfd, which is the | |
3002 | linker created stub bfd. This ensures that the GOT header is at | |
3003 | the start of the output TOC section. */ | |
3004 | htab = ppc_hash_table (info); | |
3005 | htab->stub_bfd = abfd; | |
3006 | htab->elf.dynobj = abfd; | |
3007 | } | |
3008 | ||
721956f4 AM |
3009 | /* Build a name for an entry in the stub hash table. */ |
3010 | ||
3011 | static char * | |
4ce794b7 AM |
3012 | ppc_stub_name (const asection *input_section, |
3013 | const asection *sym_sec, | |
3014 | const struct ppc_link_hash_entry *h, | |
3015 | const Elf_Internal_Rela *rel) | |
721956f4 AM |
3016 | { |
3017 | char *stub_name; | |
3018 | bfd_size_type len; | |
3019 | ||
3020 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3021 | offsets from a sym as a branch target? In fact, we could | |
3022 | probably assume the addend is always zero. */ | |
3023 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3024 | ||
3025 | if (h) | |
3026 | { | |
3027 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3028 | stub_name = bfd_malloc (len); | |
3029 | if (stub_name != NULL) | |
3030 | { | |
97b639ba | 3031 | sprintf (stub_name, "%08x.%s+%x", |
721956f4 AM |
3032 | input_section->id & 0xffffffff, |
3033 | h->elf.root.root.string, | |
3034 | (int) rel->r_addend & 0xffffffff); | |
3035 | } | |
3036 | } | |
3037 | else | |
3038 | { | |
ad8e1ba5 | 3039 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 AM |
3040 | stub_name = bfd_malloc (len); |
3041 | if (stub_name != NULL) | |
3042 | { | |
97b639ba | 3043 | sprintf (stub_name, "%08x.%x:%x+%x", |
721956f4 AM |
3044 | input_section->id & 0xffffffff, |
3045 | sym_sec->id & 0xffffffff, | |
3046 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3047 | (int) rel->r_addend & 0xffffffff); | |
3048 | } | |
3049 | } | |
3050 | return stub_name; | |
3051 | } | |
3052 | ||
3053 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3054 | creating the stub name takes a bit of time. */ | |
3055 | ||
3056 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3057 | ppc_get_stub_entry (const asection *input_section, |
3058 | const asection *sym_sec, | |
3059 | struct elf_link_hash_entry *hash, | |
3060 | const Elf_Internal_Rela *rel, | |
3061 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3062 | { |
3063 | struct ppc_stub_hash_entry *stub_entry; | |
3064 | struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash; | |
3065 | const asection *id_sec; | |
3066 | ||
3067 | /* If this input section is part of a group of sections sharing one | |
3068 | stub section, then use the id of the first section in the group. | |
3069 | Stub names need to include a section id, as there may well be | |
3070 | more than one stub used to reach say, printf, and we need to | |
3071 | distinguish between them. */ | |
3072 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3073 | ||
3074 | if (h != NULL && h->stub_cache != NULL | |
3075 | && h->stub_cache->h == h | |
3076 | && h->stub_cache->id_sec == id_sec) | |
3077 | { | |
3078 | stub_entry = h->stub_cache; | |
3079 | } | |
3080 | else | |
3081 | { | |
3082 | char *stub_name; | |
3083 | ||
3084 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3085 | if (stub_name == NULL) | |
3086 | return NULL; | |
3087 | ||
3088 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3089 | stub_name, FALSE, FALSE); |
721956f4 AM |
3090 | if (h != NULL) |
3091 | h->stub_cache = stub_entry; | |
3092 | ||
3093 | free (stub_name); | |
3094 | } | |
3095 | ||
3096 | return stub_entry; | |
3097 | } | |
3098 | ||
3099 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3100 | stub entry are initialised. */ | |
3101 | ||
3102 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3103 | ppc_add_stub (const char *stub_name, |
3104 | asection *section, | |
3105 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3106 | { |
3107 | asection *link_sec; | |
3108 | asection *stub_sec; | |
3109 | struct ppc_stub_hash_entry *stub_entry; | |
3110 | ||
3111 | link_sec = htab->stub_group[section->id].link_sec; | |
3112 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3113 | if (stub_sec == NULL) | |
3114 | { | |
3115 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3116 | if (stub_sec == NULL) | |
3117 | { | |
d4c88bbb | 3118 | size_t namelen; |
721956f4 AM |
3119 | bfd_size_type len; |
3120 | char *s_name; | |
3121 | ||
d4c88bbb AM |
3122 | namelen = strlen (link_sec->name); |
3123 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3124 | s_name = bfd_alloc (htab->stub_bfd, len); |
3125 | if (s_name == NULL) | |
3126 | return NULL; | |
3127 | ||
d4c88bbb AM |
3128 | memcpy (s_name, link_sec->name, namelen); |
3129 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3130 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3131 | if (stub_sec == NULL) | |
3132 | return NULL; | |
3133 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3134 | } | |
3135 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3136 | } | |
3137 | ||
3138 | /* Enter this entry into the linker stub hash table. */ | |
3139 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3140 | TRUE, FALSE); |
721956f4 AM |
3141 | if (stub_entry == NULL) |
3142 | { | |
3143 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
3144 | bfd_archive_filename (section->owner), | |
3145 | stub_name); | |
3146 | return NULL; | |
3147 | } | |
3148 | ||
3149 | stub_entry->stub_sec = stub_sec; | |
3150 | stub_entry->stub_offset = 0; | |
3151 | stub_entry->id_sec = link_sec; | |
3152 | return stub_entry; | |
3153 | } | |
3154 | ||
82bd7b59 AM |
3155 | /* Create sections for linker generated code. */ |
3156 | ||
b34976b6 | 3157 | static bfd_boolean |
4ce794b7 | 3158 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) |
82bd7b59 AM |
3159 | { |
3160 | struct ppc_link_hash_table *htab; | |
3161 | flagword flags; | |
3162 | ||
3163 | htab = ppc_hash_table (info); | |
3164 | ||
3165 | /* Create .sfpr for code to save and restore fp regs. */ | |
3166 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3167 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3168 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3169 | if (htab->sfpr == NULL |
3170 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3171 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3172 | return FALSE; |
82bd7b59 | 3173 | |
721956f4 | 3174 | /* Create .glink for lazy dynamic linking support. */ |
4ce794b7 AM |
3175 | htab->glink = bfd_make_section_anyway (dynobj, ".glink"); |
3176 | if (htab->glink == NULL | |
3177 | || ! bfd_set_section_flags (dynobj, htab->glink, flags) | |
3178 | || ! bfd_set_section_alignment (dynobj, htab->glink, 2)) | |
b34976b6 | 3179 | return FALSE; |
82bd7b59 | 3180 | |
721956f4 AM |
3181 | /* Create .branch_lt for plt_branch stubs. */ |
3182 | flags = (SEC_ALLOC | SEC_LOAD | |
3183 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3184 | htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt"); |
3185 | if (htab->brlt == NULL | |
3186 | || ! bfd_set_section_flags (dynobj, htab->brlt, flags) | |
3187 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
b34976b6 | 3188 | return FALSE; |
721956f4 AM |
3189 | |
3190 | if (info->shared) | |
3191 | { | |
3192 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3193 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3194 | htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
3195 | if (!htab->relbrlt | |
3196 | || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags) | |
3197 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
b34976b6 | 3198 | return FALSE; |
721956f4 | 3199 | } |
b34976b6 | 3200 | return TRUE; |
82bd7b59 AM |
3201 | } |
3202 | ||
e717da7e AM |
3203 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
3204 | not already done. */ | |
65f38f15 | 3205 | |
b34976b6 | 3206 | static bfd_boolean |
e717da7e | 3207 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
65f38f15 | 3208 | { |
e717da7e AM |
3209 | asection *got, *relgot; |
3210 | flagword flags; | |
3211 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
65f38f15 | 3212 | |
4ce794b7 | 3213 | if (!htab->got) |
e717da7e AM |
3214 | { |
3215 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
3216 | return FALSE; | |
3217 | ||
3218 | htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got"); | |
3219 | if (!htab->got) | |
3220 | abort (); | |
3221 | } | |
3222 | ||
3223 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3224 | | SEC_LINKER_CREATED); | |
3225 | ||
3226 | got = bfd_make_section (abfd, ".got"); | |
3227 | if (!got | |
3228 | || !bfd_set_section_flags (abfd, got, flags) | |
3229 | || !bfd_set_section_alignment (abfd, got, 3)) | |
3230 | return FALSE; | |
65f38f15 | 3231 | |
e717da7e AM |
3232 | relgot = bfd_make_section (abfd, ".rela.got"); |
3233 | if (!relgot | |
3234 | || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY) | |
3235 | || ! bfd_set_section_alignment (abfd, relgot, 3)) | |
b34976b6 | 3236 | return FALSE; |
e717da7e AM |
3237 | |
3238 | ppc64_elf_tdata (abfd)->got = got; | |
3239 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
b34976b6 | 3240 | return TRUE; |
65f38f15 | 3241 | } |
5bd4f169 | 3242 | |
82bd7b59 | 3243 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3244 | |
b34976b6 | 3245 | static bfd_boolean |
4ce794b7 | 3246 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5bd4f169 | 3247 | { |
65f38f15 | 3248 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3249 | |
65f38f15 | 3250 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3251 | return FALSE; |
65f38f15 | 3252 | |
e717da7e AM |
3253 | htab = ppc_hash_table (info); |
3254 | if (!htab->got) | |
3255 | htab->got = bfd_get_section_by_name (dynobj, ".got"); | |
4ce794b7 AM |
3256 | htab->plt = bfd_get_section_by_name (dynobj, ".plt"); |
3257 | htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3258 | htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
65f38f15 | 3259 | if (!info->shared) |
4ce794b7 | 3260 | htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
65f38f15 | 3261 | |
e717da7e | 3262 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
4ce794b7 | 3263 | || (!info->shared && !htab->relbss)) |
65f38f15 AM |
3264 | abort (); |
3265 | ||
b34976b6 | 3266 | return TRUE; |
5bd4f169 AM |
3267 | } |
3268 | ||
65f38f15 AM |
3269 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3270 | ||
3271 | static void | |
9c5bfbb7 AM |
3272 | ppc64_elf_copy_indirect_symbol |
3273 | (const struct elf_backend_data *bed ATTRIBUTE_UNUSED, | |
3274 | struct elf_link_hash_entry *dir, | |
3275 | struct elf_link_hash_entry *ind) | |
65f38f15 AM |
3276 | { |
3277 | struct ppc_link_hash_entry *edir, *eind; | |
81848ca0 | 3278 | flagword mask; |
65f38f15 AM |
3279 | |
3280 | edir = (struct ppc_link_hash_entry *) dir; | |
3281 | eind = (struct ppc_link_hash_entry *) ind; | |
3282 | ||
411e1bfb | 3283 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3284 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3285 | { |
bbd7ec4a AM |
3286 | if (edir->dyn_relocs != NULL) |
3287 | { | |
3288 | struct ppc_dyn_relocs **pp; | |
3289 | struct ppc_dyn_relocs *p; | |
3290 | ||
411e1bfb | 3291 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3292 | abort (); |
3293 | ||
3294 | /* Add reloc counts against the weak sym to the strong sym | |
3295 | list. Merge any entries against the same section. */ | |
3296 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3297 | { | |
3298 | struct ppc_dyn_relocs *q; | |
3299 | ||
3300 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3301 | if (q->sec == p->sec) | |
3302 | { | |
3303 | q->pc_count += p->pc_count; | |
3304 | q->count += p->count; | |
3305 | *pp = p->next; | |
3306 | break; | |
3307 | } | |
3308 | if (q == NULL) | |
3309 | pp = &p->next; | |
3310 | } | |
3311 | *pp = edir->dyn_relocs; | |
3312 | } | |
3313 | ||
65f38f15 AM |
3314 | edir->dyn_relocs = eind->dyn_relocs; |
3315 | eind->dyn_relocs = NULL; | |
3316 | } | |
65f38f15 | 3317 | |
6349e628 AM |
3318 | edir->is_func |= eind->is_func; |
3319 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
3320 | edir->is_entry |= eind->is_entry; | |
58ac9f71 | 3321 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3322 | |
81848ca0 AM |
3323 | mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR |
3324 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF); | |
3325 | /* If called to transfer flags for a weakdef during processing | |
3326 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
3327 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3328 | if (ELIMINATE_COPY_RELOCS | |
3329 | && eind->elf.root.type != bfd_link_hash_indirect | |
3330 | && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
3331 | mask &= ~ELF_LINK_NON_GOT_REF; | |
3332 | ||
3333 | edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask; | |
6349e628 AM |
3334 | |
3335 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3336 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3337 | return; | |
3338 | ||
81848ca0 AM |
3339 | /* Copy over got entries that we may have already seen to the |
3340 | symbol which just became indirect. */ | |
411e1bfb AM |
3341 | if (eind->elf.got.glist != NULL) |
3342 | { | |
3343 | if (edir->elf.got.glist != NULL) | |
3344 | { | |
3345 | struct got_entry **entp; | |
3346 | struct got_entry *ent; | |
3347 | ||
3348 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3349 | { | |
3350 | struct got_entry *dent; | |
3351 | ||
3352 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3353 | if (dent->addend == ent->addend | |
e717da7e | 3354 | && dent->owner == ent->owner |
411e1bfb AM |
3355 | && dent->tls_type == ent->tls_type) |
3356 | { | |
3357 | dent->got.refcount += ent->got.refcount; | |
3358 | *entp = ent->next; | |
3359 | break; | |
3360 | } | |
3361 | if (dent == NULL) | |
3362 | entp = &ent->next; | |
3363 | } | |
3364 | *entp = edir->elf.got.glist; | |
3365 | } | |
3366 | ||
3367 | edir->elf.got.glist = eind->elf.got.glist; | |
3368 | eind->elf.got.glist = NULL; | |
3369 | } | |
3370 | ||
3371 | /* And plt entries. */ | |
3372 | if (eind->elf.plt.plist != NULL) | |
3373 | { | |
3374 | if (edir->elf.plt.plist != NULL) | |
3375 | { | |
3376 | struct plt_entry **entp; | |
3377 | struct plt_entry *ent; | |
3378 | ||
3379 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3380 | { | |
3381 | struct plt_entry *dent; | |
3382 | ||
3383 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3384 | if (dent->addend == ent->addend) | |
3385 | { | |
3386 | dent->plt.refcount += ent->plt.refcount; | |
3387 | *entp = ent->next; | |
3388 | break; | |
3389 | } | |
3390 | if (dent == NULL) | |
3391 | entp = &ent->next; | |
3392 | } | |
3393 | *entp = edir->elf.plt.plist; | |
3394 | } | |
3395 | ||
3396 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3397 | eind->elf.plt.plist = NULL; | |
3398 | } | |
3399 | ||
411e1bfb AM |
3400 | if (edir->elf.dynindx == -1) |
3401 | { | |
3402 | edir->elf.dynindx = eind->elf.dynindx; | |
3403 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3404 | eind->elf.dynindx = -1; | |
3405 | eind->elf.dynstr_index = 0; | |
3406 | } | |
3407 | else | |
3408 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3409 | } | |
3410 | ||
3411 | /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and | |
3412 | symbols undefined on the command-line. */ | |
3413 | ||
3414 | bfd_boolean | |
4ce794b7 | 3415 | ppc64_elf_mark_entry_syms (struct bfd_link_info *info) |
411e1bfb AM |
3416 | { |
3417 | struct ppc_link_hash_table *htab; | |
3418 | struct bfd_sym_chain *sym; | |
3419 | ||
3420 | htab = ppc_hash_table (info); | |
3421 | for (sym = info->gc_sym_list; sym; sym = sym->next) | |
3422 | { | |
3423 | struct elf_link_hash_entry *h; | |
3424 | ||
3425 | h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
3426 | if (h != NULL) | |
3427 | ((struct ppc_link_hash_entry *) h)->is_entry = 1; | |
3428 | } | |
3429 | return TRUE; | |
3430 | } | |
3431 | ||
3432 | static bfd_boolean | |
4ce794b7 AM |
3433 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
3434 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
411e1bfb AM |
3435 | { |
3436 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 3437 | char *local_got_tls_masks; |
411e1bfb AM |
3438 | |
3439 | if (local_got_ents == NULL) | |
3440 | { | |
3441 | bfd_size_type size = symtab_hdr->sh_info; | |
3442 | ||
e7b938ca | 3443 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
4ce794b7 | 3444 | local_got_ents = bfd_zalloc (abfd, size); |
411e1bfb AM |
3445 | if (local_got_ents == NULL) |
3446 | return FALSE; | |
3447 | elf_local_got_ents (abfd) = local_got_ents; | |
3448 | } | |
3449 | ||
3450 | if ((tls_type & TLS_EXPLICIT) == 0) | |
3451 | { | |
3452 | struct got_entry *ent; | |
3453 | ||
3454 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
e717da7e AM |
3455 | if (ent->addend == r_addend |
3456 | && ent->owner == abfd | |
3457 | && ent->tls_type == tls_type) | |
411e1bfb AM |
3458 | break; |
3459 | if (ent == NULL) | |
3460 | { | |
3461 | bfd_size_type amt = sizeof (*ent); | |
4ce794b7 | 3462 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3463 | if (ent == NULL) |
3464 | return FALSE; | |
3465 | ent->next = local_got_ents[r_symndx]; | |
3466 | ent->addend = r_addend; | |
e717da7e | 3467 | ent->owner = abfd; |
411e1bfb AM |
3468 | ent->tls_type = tls_type; |
3469 | ent->got.refcount = 0; | |
3470 | local_got_ents[r_symndx] = ent; | |
3471 | } | |
3472 | ent->got.refcount += 1; | |
3473 | } | |
3474 | ||
e7b938ca AM |
3475 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
3476 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 3477 | return TRUE; |
65f38f15 AM |
3478 | } |
3479 | ||
411e1bfb | 3480 | static bfd_boolean |
4ce794b7 | 3481 | update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend) |
1e2f5b6e | 3482 | { |
411e1bfb | 3483 | struct plt_entry *ent; |
1e2f5b6e | 3484 | |
411e1bfb AM |
3485 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
3486 | if (ent->addend == addend) | |
3487 | break; | |
3488 | if (ent == NULL) | |
1e2f5b6e | 3489 | { |
411e1bfb | 3490 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3491 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3492 | if (ent == NULL) |
3493 | return FALSE; | |
3494 | ent->next = eh->elf.plt.plist; | |
3495 | ent->addend = addend; | |
3496 | ent->plt.refcount = 0; | |
3497 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 3498 | } |
411e1bfb AM |
3499 | ent->plt.refcount += 1; |
3500 | eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
3501 | eh->is_func = 1; | |
b34976b6 | 3502 | return TRUE; |
1e2f5b6e AM |
3503 | } |
3504 | ||
50bc7936 AM |
3505 | /* Find the function descriptor hash entry from the given function code |
3506 | hash entry FH. Link the entries via their OH fields. */ | |
3507 | static struct ppc_link_hash_entry * | |
3508 | get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) | |
3509 | { | |
3510 | struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh; | |
3511 | ||
3512 | if (fdh == NULL) | |
3513 | { | |
3514 | const char *fd_name = fh->elf.root.root.string + 1; | |
3515 | ||
3516 | fdh = (struct ppc_link_hash_entry *) | |
3517 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
3518 | if (fdh != NULL) | |
3519 | { | |
3520 | fdh->is_func_descriptor = 1; | |
3521 | fdh->oh = &fh->elf; | |
3522 | fh->is_func = 1; | |
3523 | fh->oh = &fdh->elf; | |
3524 | } | |
3525 | } | |
3526 | ||
3527 | return fdh; | |
3528 | } | |
3529 | ||
5bd4f169 | 3530 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 3531 | calculate needed space in the global offset table, procedure |
5d1634d7 | 3532 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 3533 | |
b34976b6 | 3534 | static bfd_boolean |
4ce794b7 AM |
3535 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
3536 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 3537 | { |
65f38f15 | 3538 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
3539 | Elf_Internal_Shdr *symtab_hdr; |
3540 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3541 | const Elf_Internal_Rela *rel; | |
3542 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 3543 | asection *sreloc; |
1e2f5b6e | 3544 | asection **opd_sym_map; |
5bd4f169 | 3545 | |
1049f94e | 3546 | if (info->relocatable) |
b34976b6 | 3547 | return TRUE; |
5bd4f169 | 3548 | |
65f38f15 | 3549 | htab = ppc_hash_table (info); |
5bd4f169 | 3550 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
3551 | |
3552 | sym_hashes = elf_sym_hashes (abfd); | |
3553 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
3554 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
3555 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
3556 | |
3557 | sreloc = NULL; | |
1e2f5b6e AM |
3558 | opd_sym_map = NULL; |
3559 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
3560 | { | |
3561 | /* Garbage collection needs some extra help with .opd sections. | |
3562 | We don't want to necessarily keep everything referenced by | |
3563 | relocs in .opd, as that would keep all functions. Instead, | |
3564 | if we reference an .opd symbol (a function descriptor), we | |
3565 | want to keep the function code symbol's section. This is | |
3566 | easy for global symbols, but for local syms we need to keep | |
3567 | information about the associated function section. Later, if | |
3568 | edit_opd deletes entries, we'll use this array to adjust | |
3569 | local syms in .opd. */ | |
3570 | union opd_info { | |
3571 | asection *func_section; | |
3572 | long entry_adjust; | |
3573 | }; | |
3574 | bfd_size_type amt; | |
3575 | ||
3576 | amt = sec->_raw_size * sizeof (union opd_info) / 24; | |
4ce794b7 | 3577 | opd_sym_map = bfd_zalloc (abfd, amt); |
1e2f5b6e | 3578 | if (opd_sym_map == NULL) |
b34976b6 | 3579 | return FALSE; |
f0abc2a1 | 3580 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 3581 | } |
5bd4f169 | 3582 | |
82bd7b59 AM |
3583 | if (htab->sfpr == NULL |
3584 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 3585 | return FALSE; |
82bd7b59 | 3586 | |
5bd4f169 AM |
3587 | rel_end = relocs + sec->reloc_count; |
3588 | for (rel = relocs; rel < rel_end; rel++) | |
3589 | { | |
3590 | unsigned long r_symndx; | |
3591 | struct elf_link_hash_entry *h; | |
04c9666a | 3592 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 3593 | int tls_type = 0; |
5bd4f169 AM |
3594 | |
3595 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3596 | if (r_symndx < symtab_hdr->sh_info) | |
3597 | h = NULL; | |
3598 | else | |
3599 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3600 | ||
4ce794b7 | 3601 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3602 | switch (r_type) |
5bd4f169 | 3603 | { |
411e1bfb AM |
3604 | case R_PPC64_GOT_TLSLD16: |
3605 | case R_PPC64_GOT_TLSLD16_LO: | |
3606 | case R_PPC64_GOT_TLSLD16_HI: | |
3607 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 3608 | ppc64_tlsld_got (abfd)->refcount += 1; |
951fd09b | 3609 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
3610 | goto dogottls; |
3611 | ||
3612 | case R_PPC64_GOT_TLSGD16: | |
3613 | case R_PPC64_GOT_TLSGD16_LO: | |
3614 | case R_PPC64_GOT_TLSGD16_HI: | |
3615 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 3616 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
3617 | goto dogottls; |
3618 | ||
3619 | case R_PPC64_GOT_TPREL16_DS: | |
3620 | case R_PPC64_GOT_TPREL16_LO_DS: | |
3621 | case R_PPC64_GOT_TPREL16_HI: | |
3622 | case R_PPC64_GOT_TPREL16_HA: | |
3623 | if (info->shared) | |
3624 | info->flags |= DF_STATIC_TLS; | |
3625 | tls_type = TLS_TLS | TLS_TPREL; | |
3626 | goto dogottls; | |
3627 | ||
3628 | case R_PPC64_GOT_DTPREL16_DS: | |
3629 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
3630 | case R_PPC64_GOT_DTPREL16_HI: | |
3631 | case R_PPC64_GOT_DTPREL16_HA: | |
3632 | tls_type = TLS_TLS | TLS_DTPREL; | |
3633 | dogottls: | |
3634 | sec->has_tls_reloc = 1; | |
3635 | /* Fall thru */ | |
3636 | ||
5bd4f169 | 3637 | case R_PPC64_GOT16: |
5bd4f169 | 3638 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
3639 | case R_PPC64_GOT16_HA: |
3640 | case R_PPC64_GOT16_HI: | |
3641 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 3642 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 3643 | /* This symbol requires a global offset table entry. */ |
ad8e1ba5 | 3644 | sec->has_gp_reloc = 1; |
e717da7e AM |
3645 | if (ppc64_elf_tdata (abfd)->got == NULL |
3646 | && !create_got_section (abfd, info)) | |
b34976b6 | 3647 | return FALSE; |
5bd4f169 AM |
3648 | |
3649 | if (h != NULL) | |
3650 | { | |
411e1bfb AM |
3651 | struct ppc_link_hash_entry *eh; |
3652 | struct got_entry *ent; | |
65f38f15 | 3653 | |
411e1bfb AM |
3654 | eh = (struct ppc_link_hash_entry *) h; |
3655 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
3656 | if (ent->addend == rel->r_addend | |
e717da7e | 3657 | && ent->owner == abfd |
411e1bfb AM |
3658 | && ent->tls_type == tls_type) |
3659 | break; | |
3660 | if (ent == NULL) | |
5bd4f169 | 3661 | { |
411e1bfb | 3662 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3663 | ent = bfd_alloc (abfd, amt); |
411e1bfb | 3664 | if (ent == NULL) |
b34976b6 | 3665 | return FALSE; |
411e1bfb AM |
3666 | ent->next = eh->elf.got.glist; |
3667 | ent->addend = rel->r_addend; | |
e717da7e | 3668 | ent->owner = abfd; |
411e1bfb AM |
3669 | ent->tls_type = tls_type; |
3670 | ent->got.refcount = 0; | |
3671 | eh->elf.got.glist = ent; | |
5bd4f169 | 3672 | } |
411e1bfb | 3673 | ent->got.refcount += 1; |
e7b938ca | 3674 | eh->tls_mask |= tls_type; |
5bd4f169 | 3675 | } |
411e1bfb AM |
3676 | else |
3677 | /* This is a global offset table entry for a local symbol. */ | |
3678 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3679 | rel->r_addend, tls_type)) | |
3680 | return FALSE; | |
5bd4f169 AM |
3681 | break; |
3682 | ||
5bd4f169 | 3683 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
3684 | case R_PPC64_PLT16_HI: |
3685 | case R_PPC64_PLT16_LO: | |
3686 | case R_PPC64_PLT32: | |
3687 | case R_PPC64_PLT64: | |
5bd4f169 | 3688 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
3689 | actually build the entry in adjust_dynamic_symbol, |
3690 | because this might be a case of linking PIC code without | |
3691 | linking in any dynamic objects, in which case we don't | |
3692 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
3693 | if (h == NULL) |
3694 | { | |
3695 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 3696 | table entry for a local symbol. */ |
5bd4f169 | 3697 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3698 | return FALSE; |
5bd4f169 | 3699 | } |
411e1bfb AM |
3700 | else |
3701 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
3702 | rel->r_addend)) | |
3703 | return FALSE; | |
5bd4f169 AM |
3704 | break; |
3705 | ||
3706 | /* The following relocations don't need to propagate the | |
3707 | relocation if linking a shared object since they are | |
3708 | section relative. */ | |
3709 | case R_PPC64_SECTOFF: | |
3710 | case R_PPC64_SECTOFF_LO: | |
3711 | case R_PPC64_SECTOFF_HI: | |
3712 | case R_PPC64_SECTOFF_HA: | |
3713 | case R_PPC64_SECTOFF_DS: | |
3714 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
3715 | case R_PPC64_DTPREL16: |
3716 | case R_PPC64_DTPREL16_LO: | |
3717 | case R_PPC64_DTPREL16_HI: | |
3718 | case R_PPC64_DTPREL16_HA: | |
3719 | case R_PPC64_DTPREL16_DS: | |
3720 | case R_PPC64_DTPREL16_LO_DS: | |
3721 | case R_PPC64_DTPREL16_HIGHER: | |
3722 | case R_PPC64_DTPREL16_HIGHERA: | |
3723 | case R_PPC64_DTPREL16_HIGHEST: | |
3724 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
3725 | break; |
3726 | ||
ad8e1ba5 AM |
3727 | /* Nor do these. */ |
3728 | case R_PPC64_TOC16: | |
3729 | case R_PPC64_TOC16_LO: | |
3730 | case R_PPC64_TOC16_HI: | |
3731 | case R_PPC64_TOC16_HA: | |
3732 | case R_PPC64_TOC16_DS: | |
3733 | case R_PPC64_TOC16_LO_DS: | |
3734 | sec->has_gp_reloc = 1; | |
3735 | break; | |
3736 | ||
5bd4f169 AM |
3737 | /* This relocation describes the C++ object vtable hierarchy. |
3738 | Reconstruct it for later use during GC. */ | |
3739 | case R_PPC64_GNU_VTINHERIT: | |
3740 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3741 | return FALSE; |
5bd4f169 AM |
3742 | break; |
3743 | ||
3744 | /* This relocation describes which C++ vtable entries are actually | |
3745 | used. Record for later use during GC. */ | |
3746 | case R_PPC64_GNU_VTENTRY: | |
3747 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3748 | return FALSE; |
5bd4f169 AM |
3749 | break; |
3750 | ||
721956f4 AM |
3751 | case R_PPC64_REL14: |
3752 | case R_PPC64_REL14_BRTAKEN: | |
3753 | case R_PPC64_REL14_BRNTAKEN: | |
3754 | htab->has_14bit_branch = 1; | |
3755 | /* Fall through. */ | |
3756 | ||
5d1634d7 | 3757 | case R_PPC64_REL24: |
e86ce104 AM |
3758 | if (h != NULL |
3759 | && h->root.root.string[0] == '.' | |
3760 | && h->root.root.string[1] != 0) | |
5d1634d7 AM |
3761 | { |
3762 | /* We may need a .plt entry if the function this reloc | |
3763 | refers to is in a shared lib. */ | |
411e1bfb AM |
3764 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
3765 | rel->r_addend)) | |
3766 | return FALSE; | |
3767 | if (h == htab->tls_get_addr) | |
3768 | sec->has_tls_reloc = 1; | |
a48ebf4d AM |
3769 | else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15) |
3770 | == 0) | |
3771 | && (h->root.root.string[15] == 0 | |
3772 | || h->root.root.string[15] == '@')) | |
411e1bfb AM |
3773 | { |
3774 | htab->tls_get_addr = h; | |
3775 | sec->has_tls_reloc = 1; | |
3776 | } | |
3777 | } | |
3778 | break; | |
3779 | ||
3780 | case R_PPC64_TPREL64: | |
3781 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
3782 | if (info->shared) | |
3783 | info->flags |= DF_STATIC_TLS; | |
3784 | goto dotlstoc; | |
3785 | ||
3786 | case R_PPC64_DTPMOD64: | |
3787 | if (rel + 1 < rel_end | |
3788 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
3789 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 3790 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 3791 | else |
951fd09b | 3792 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
3793 | goto dotlstoc; |
3794 | ||
3795 | case R_PPC64_DTPREL64: | |
3796 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
3797 | if (rel != relocs | |
3798 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
3799 | && rel[-1].r_offset == rel->r_offset - 8) | |
3800 | /* This is the second reloc of a dtpmod, dtprel pair. | |
3801 | Don't mark with TLS_DTPREL. */ | |
3802 | goto dodyn; | |
3803 | ||
3804 | dotlstoc: | |
3805 | sec->has_tls_reloc = 1; | |
3806 | if (h != NULL) | |
3807 | { | |
3808 | struct ppc_link_hash_entry *eh; | |
3809 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 3810 | eh->tls_mask |= tls_type; |
411e1bfb AM |
3811 | } |
3812 | else | |
3813 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3814 | rel->r_addend, tls_type)) | |
3815 | return FALSE; | |
3816 | ||
3817 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3818 | { | |
e7b938ca | 3819 | /* One extra to simplify get_tls_mask. */ |
951fd09b | 3820 | bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1; |
4ce794b7 | 3821 | ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt); |
411e1bfb AM |
3822 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) |
3823 | return FALSE; | |
3824 | } | |
3825 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
3826 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
3827 | |
3828 | /* Mark the second slot of a GD or LD entry. | |
3829 | -1 to indicate GD and -2 to indicate LD. */ | |
3830 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
3831 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
3832 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
3833 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
3834 | goto dodyn; |
3835 | ||
3836 | case R_PPC64_TPREL16: | |
3837 | case R_PPC64_TPREL16_LO: | |
3838 | case R_PPC64_TPREL16_HI: | |
3839 | case R_PPC64_TPREL16_HA: | |
3840 | case R_PPC64_TPREL16_DS: | |
3841 | case R_PPC64_TPREL16_LO_DS: | |
3842 | case R_PPC64_TPREL16_HIGHER: | |
3843 | case R_PPC64_TPREL16_HIGHERA: | |
3844 | case R_PPC64_TPREL16_HIGHEST: | |
3845 | case R_PPC64_TPREL16_HIGHESTA: | |
3846 | if (info->shared) | |
3847 | { | |
3848 | info->flags |= DF_STATIC_TLS; | |
3849 | goto dodyn; | |
5d1634d7 AM |
3850 | } |
3851 | break; | |
3852 | ||
e86ce104 | 3853 | case R_PPC64_ADDR64: |
1e2f5b6e | 3854 | if (opd_sym_map != NULL |
e86ce104 AM |
3855 | && h != NULL |
3856 | && h->root.root.string[0] == '.' | |
3857 | && h->root.root.string[1] != 0) | |
50bc7936 | 3858 | get_fdh ((struct ppc_link_hash_entry *) h, htab); |
e86ce104 | 3859 | |
1e2f5b6e AM |
3860 | if (opd_sym_map != NULL |
3861 | && h == NULL | |
3862 | && rel + 1 < rel_end | |
4ce794b7 | 3863 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
1e2f5b6e AM |
3864 | { |
3865 | asection *s; | |
3866 | ||
3867 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3868 | r_symndx); | |
3869 | if (s == NULL) | |
b34976b6 | 3870 | return FALSE; |
1e2f5b6e AM |
3871 | else if (s != sec) |
3872 | opd_sym_map[rel->r_offset / 24] = s; | |
3873 | } | |
e86ce104 AM |
3874 | /* Fall through. */ |
3875 | ||
04c9666a | 3876 | case R_PPC64_REL30: |
5bd4f169 | 3877 | case R_PPC64_REL32: |
04c9666a | 3878 | case R_PPC64_REL64: |
65f38f15 AM |
3879 | case R_PPC64_ADDR14: |
3880 | case R_PPC64_ADDR14_BRNTAKEN: | |
3881 | case R_PPC64_ADDR14_BRTAKEN: | |
3882 | case R_PPC64_ADDR16: | |
3883 | case R_PPC64_ADDR16_DS: | |
3884 | case R_PPC64_ADDR16_HA: | |
3885 | case R_PPC64_ADDR16_HI: | |
3886 | case R_PPC64_ADDR16_HIGHER: | |
3887 | case R_PPC64_ADDR16_HIGHERA: | |
3888 | case R_PPC64_ADDR16_HIGHEST: | |
3889 | case R_PPC64_ADDR16_HIGHESTA: | |
3890 | case R_PPC64_ADDR16_LO: | |
3891 | case R_PPC64_ADDR16_LO_DS: | |
3892 | case R_PPC64_ADDR24: | |
65f38f15 | 3893 | case R_PPC64_ADDR32: |
65f38f15 AM |
3894 | case R_PPC64_UADDR16: |
3895 | case R_PPC64_UADDR32: | |
3896 | case R_PPC64_UADDR64: | |
5bd4f169 | 3897 | case R_PPC64_TOC: |
81848ca0 AM |
3898 | if (h != NULL && !info->shared) |
3899 | /* We may need a copy reloc. */ | |
3900 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3901 | ||
41bd81ab | 3902 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 3903 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 3904 | break; |
e86ce104 | 3905 | |
f4656909 AM |
3906 | /* Don't propagate relocs that the dynamic linker won't relocate. */ |
3907 | if ((sec->flags & SEC_ALLOC) == 0) | |
3908 | break; | |
3909 | ||
65f38f15 AM |
3910 | /* If we are creating a shared library, and this is a reloc |
3911 | against a global symbol, or a non PC relative reloc | |
3912 | against a local symbol, then we need to copy the reloc | |
3913 | into the shared library. However, if we are linking with | |
3914 | -Bsymbolic, we do not need to copy a reloc against a | |
3915 | global symbol which is defined in an object we are | |
3916 | including in the link (i.e., DEF_REGULAR is set). At | |
3917 | this point we have not seen all the input files, so it is | |
3918 | possible that DEF_REGULAR is not set now but will be set | |
3919 | later (it is never cleared). In case of a weak definition, | |
3920 | DEF_REGULAR may be cleared later by a strong definition in | |
3921 | a shared library. We account for that possibility below by | |
f4656909 | 3922 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
3923 | table entry. A similar situation occurs when creating |
3924 | shared libraries and symbol visibility changes render the | |
3925 | symbol local. | |
3926 | ||
3927 | If on the other hand, we are creating an executable, we | |
3928 | may need to keep relocations for symbols satisfied by a | |
3929 | dynamic library if we manage to avoid copy relocs for the | |
3930 | symbol. */ | |
411e1bfb | 3931 | dodyn: |
65f38f15 | 3932 | if ((info->shared |
411e1bfb | 3933 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
3934 | || (h != NULL |
3935 | && (! info->symbolic | |
3936 | || h->root.type == bfd_link_hash_defweak | |
3937 | || (h->elf_link_hash_flags | |
3938 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
f4656909 AM |
3939 | || (ELIMINATE_COPY_RELOCS |
3940 | && !info->shared | |
65f38f15 AM |
3941 | && h != NULL |
3942 | && (h->root.type == bfd_link_hash_defweak | |
3943 | || (h->elf_link_hash_flags | |
3944 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
5bd4f169 | 3945 | { |
ec338859 AM |
3946 | struct ppc_dyn_relocs *p; |
3947 | struct ppc_dyn_relocs **head; | |
3948 | ||
65f38f15 AM |
3949 | /* We must copy these reloc types into the output file. |
3950 | Create a reloc section in dynobj and make room for | |
3951 | this reloc. */ | |
5bd4f169 AM |
3952 | if (sreloc == NULL) |
3953 | { | |
3954 | const char *name; | |
65f38f15 | 3955 | bfd *dynobj; |
5bd4f169 AM |
3956 | |
3957 | name = (bfd_elf_string_from_elf_section | |
3958 | (abfd, | |
3959 | elf_elfheader (abfd)->e_shstrndx, | |
3960 | elf_section_data (sec)->rel_hdr.sh_name)); | |
3961 | if (name == NULL) | |
b34976b6 | 3962 | return FALSE; |
5bd4f169 | 3963 | |
65f38f15 AM |
3964 | if (strncmp (name, ".rela", 5) != 0 |
3965 | || strcmp (bfd_get_section_name (abfd, sec), | |
3966 | name + 5) != 0) | |
3967 | { | |
3968 | (*_bfd_error_handler) | |
3969 | (_("%s: bad relocation section name `%s\'"), | |
3970 | bfd_archive_filename (abfd), name); | |
5d1634d7 | 3971 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
3972 | } |
3973 | ||
65f38f15 | 3974 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
3975 | sreloc = bfd_get_section_by_name (dynobj, name); |
3976 | if (sreloc == NULL) | |
3977 | { | |
3978 | flagword flags; | |
3979 | ||
3980 | sreloc = bfd_make_section (dynobj, name); | |
3981 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
3982 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3983 | if ((sec->flags & SEC_ALLOC) != 0) | |
3984 | flags |= SEC_ALLOC | SEC_LOAD; | |
3985 | if (sreloc == NULL | |
3986 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 3987 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 3988 | return FALSE; |
5bd4f169 | 3989 | } |
65f38f15 | 3990 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
3991 | } |
3992 | ||
65f38f15 AM |
3993 | /* If this is a global symbol, we count the number of |
3994 | relocations we need for this symbol. */ | |
3995 | if (h != NULL) | |
3996 | { | |
ec338859 | 3997 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
3998 | } |
3999 | else | |
4000 | { | |
ec338859 AM |
4001 | /* Track dynamic relocs needed for local syms too. |
4002 | We really need local syms available to do this | |
4003 | easily. Oh well. */ | |
4004 | ||
4005 | asection *s; | |
4006 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4007 | sec, r_symndx); | |
4008 | if (s == NULL) | |
b34976b6 | 4009 | return FALSE; |
ec338859 AM |
4010 | |
4011 | head = ((struct ppc_dyn_relocs **) | |
4012 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 4013 | } |
ec338859 AM |
4014 | |
4015 | p = *head; | |
4016 | if (p == NULL || p->sec != sec) | |
4017 | { | |
4ce794b7 | 4018 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 4019 | if (p == NULL) |
b34976b6 | 4020 | return FALSE; |
ec338859 AM |
4021 | p->next = *head; |
4022 | *head = p; | |
4023 | p->sec = sec; | |
4024 | p->count = 0; | |
4025 | p->pc_count = 0; | |
4026 | } | |
4027 | ||
4028 | p->count += 1; | |
411e1bfb | 4029 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4030 | p->pc_count += 1; |
65f38f15 | 4031 | } |
5bd4f169 | 4032 | break; |
65f38f15 AM |
4033 | |
4034 | default: | |
96e0dda4 | 4035 | break; |
5bd4f169 AM |
4036 | } |
4037 | } | |
4038 | ||
b34976b6 | 4039 | return TRUE; |
5bd4f169 AM |
4040 | } |
4041 | ||
4042 | /* Return the section that should be marked against GC for a given | |
4043 | relocation. */ | |
4044 | ||
4045 | static asection * | |
4ce794b7 AM |
4046 | ppc64_elf_gc_mark_hook (asection *sec, |
4047 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4048 | Elf_Internal_Rela *rel, | |
4049 | struct elf_link_hash_entry *h, | |
4050 | Elf_Internal_Sym *sym) | |
5bd4f169 | 4051 | { |
1e2f5b6e AM |
4052 | asection *rsec = NULL; |
4053 | ||
5bd4f169 AM |
4054 | if (h != NULL) |
4055 | { | |
04c9666a | 4056 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e | 4057 | struct ppc_link_hash_entry *fdh; |
a33d1f77 | 4058 | |
4ce794b7 | 4059 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4060 | switch (r_type) |
5bd4f169 AM |
4061 | { |
4062 | case R_PPC64_GNU_VTINHERIT: | |
4063 | case R_PPC64_GNU_VTENTRY: | |
4064 | break; | |
4065 | ||
4066 | default: | |
4067 | switch (h->root.type) | |
4068 | { | |
4069 | case bfd_link_hash_defined: | |
4070 | case bfd_link_hash_defweak: | |
1e2f5b6e AM |
4071 | fdh = (struct ppc_link_hash_entry *) h; |
4072 | ||
4073 | /* Function descriptor syms cause the associated | |
4074 | function code sym section to be marked. */ | |
4075 | if (fdh->is_func_descriptor) | |
4076 | rsec = fdh->oh->root.u.def.section; | |
4077 | ||
4078 | /* Function entry syms return NULL if they are in .opd | |
4079 | and are not ._start (or others undefined on the ld | |
4080 | command line). Thus we avoid marking all function | |
b34976b6 | 4081 | sections, as all functions are referenced in .opd. */ |
1e2f5b6e AM |
4082 | else if ((fdh->oh != NULL |
4083 | && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry) | |
f0abc2a1 | 4084 | || ppc64_elf_section_data (sec)->opd.func_sec == NULL) |
1e2f5b6e AM |
4085 | rsec = h->root.u.def.section; |
4086 | break; | |
5bd4f169 AM |
4087 | |
4088 | case bfd_link_hash_common: | |
1e2f5b6e AM |
4089 | rsec = h->root.u.c.p->section; |
4090 | break; | |
5bd4f169 AM |
4091 | |
4092 | default: | |
4093 | break; | |
4094 | } | |
4095 | } | |
4096 | } | |
4097 | else | |
4098 | { | |
1e2f5b6e AM |
4099 | asection **opd_sym_section; |
4100 | ||
4101 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
f0abc2a1 | 4102 | opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec; |
1e2f5b6e AM |
4103 | if (opd_sym_section != NULL) |
4104 | rsec = opd_sym_section[sym->st_value / 24]; | |
f0abc2a1 | 4105 | else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL) |
1e2f5b6e | 4106 | rsec = NULL; |
5bd4f169 AM |
4107 | } |
4108 | ||
1e2f5b6e | 4109 | return rsec; |
5bd4f169 AM |
4110 | } |
4111 | ||
65f38f15 AM |
4112 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4113 | section being removed. */ | |
5bd4f169 | 4114 | |
b34976b6 | 4115 | static bfd_boolean |
4ce794b7 AM |
4116 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
4117 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4118 | { |
411e1bfb | 4119 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4120 | Elf_Internal_Shdr *symtab_hdr; |
4121 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4122 | struct got_entry **local_got_ents; |
5bd4f169 | 4123 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4124 | |
ec338859 AM |
4125 | elf_section_data (sec)->local_dynrel = NULL; |
4126 | ||
411e1bfb | 4127 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4128 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4129 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4130 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4131 | |
4132 | relend = relocs + sec->reloc_count; | |
4133 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4134 | { |
4135 | unsigned long r_symndx; | |
04c9666a | 4136 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4137 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4138 | char tls_type = 0; |
5bd4f169 | 4139 | |
a33d1f77 | 4140 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 | 4141 | r_type = ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4142 | if (r_symndx >= symtab_hdr->sh_info) |
4143 | { | |
4144 | struct ppc_link_hash_entry *eh; | |
4145 | struct ppc_dyn_relocs **pp; | |
4146 | struct ppc_dyn_relocs *p; | |
4147 | ||
4148 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4149 | eh = (struct ppc_link_hash_entry *) h; | |
4150 | ||
4151 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4152 | if (p->sec == sec) | |
4153 | { | |
4154 | /* Everything must go for SEC. */ | |
4155 | *pp = p->next; | |
4156 | break; | |
4157 | } | |
4158 | } | |
4159 | ||
a33d1f77 AM |
4160 | switch (r_type) |
4161 | { | |
411e1bfb AM |
4162 | case R_PPC64_GOT_TLSLD16: |
4163 | case R_PPC64_GOT_TLSLD16_LO: | |
4164 | case R_PPC64_GOT_TLSLD16_HI: | |
4165 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 4166 | ppc64_tlsld_got (abfd)->refcount -= 1; |
951fd09b | 4167 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4168 | goto dogot; |
4169 | ||
4170 | case R_PPC64_GOT_TLSGD16: | |
4171 | case R_PPC64_GOT_TLSGD16_LO: | |
4172 | case R_PPC64_GOT_TLSGD16_HI: | |
4173 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4174 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4175 | goto dogot; |
4176 | ||
4177 | case R_PPC64_GOT_TPREL16_DS: | |
4178 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4179 | case R_PPC64_GOT_TPREL16_HI: | |
4180 | case R_PPC64_GOT_TPREL16_HA: | |
4181 | tls_type = TLS_TLS | TLS_TPREL; | |
4182 | goto dogot; | |
4183 | ||
4184 | case R_PPC64_GOT_DTPREL16_DS: | |
4185 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4186 | case R_PPC64_GOT_DTPREL16_HI: | |
4187 | case R_PPC64_GOT_DTPREL16_HA: | |
4188 | tls_type = TLS_TLS | TLS_DTPREL; | |
4189 | goto dogot; | |
4190 | ||
a33d1f77 AM |
4191 | case R_PPC64_GOT16: |
4192 | case R_PPC64_GOT16_DS: | |
4193 | case R_PPC64_GOT16_HA: | |
4194 | case R_PPC64_GOT16_HI: | |
4195 | case R_PPC64_GOT16_LO: | |
4196 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
4197 | dogot: |
4198 | { | |
4199 | struct got_entry *ent; | |
4200 | ||
58ac9f71 AM |
4201 | if (h != NULL) |
4202 | ent = h->got.glist; | |
411e1bfb AM |
4203 | else |
4204 | ent = local_got_ents[r_symndx]; | |
4205 | ||
4206 | for (; ent != NULL; ent = ent->next) | |
4207 | if (ent->addend == rel->r_addend | |
e717da7e | 4208 | && ent->owner == abfd |
411e1bfb AM |
4209 | && ent->tls_type == tls_type) |
4210 | break; | |
4211 | if (ent == NULL) | |
4212 | abort (); | |
4213 | if (ent->got.refcount > 0) | |
4214 | ent->got.refcount -= 1; | |
4215 | } | |
a33d1f77 | 4216 | break; |
65f38f15 | 4217 | |
a33d1f77 AM |
4218 | case R_PPC64_PLT16_HA: |
4219 | case R_PPC64_PLT16_HI: | |
4220 | case R_PPC64_PLT16_LO: | |
4221 | case R_PPC64_PLT32: | |
4222 | case R_PPC64_PLT64: | |
721956f4 AM |
4223 | case R_PPC64_REL14: |
4224 | case R_PPC64_REL14_BRNTAKEN: | |
4225 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 4226 | case R_PPC64_REL24: |
58ac9f71 | 4227 | if (h != NULL) |
5d1634d7 | 4228 | { |
411e1bfb AM |
4229 | struct plt_entry *ent; |
4230 | ||
411e1bfb AM |
4231 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4232 | if (ent->addend == rel->r_addend) | |
4233 | break; | |
4234 | if (ent == NULL) | |
4235 | abort (); | |
4236 | if (ent->plt.refcount > 0) | |
4237 | ent->plt.refcount -= 1; | |
5d1634d7 | 4238 | } |
e86ce104 | 4239 | break; |
5d1634d7 | 4240 | |
a33d1f77 AM |
4241 | default: |
4242 | break; | |
4243 | } | |
4244 | } | |
b34976b6 | 4245 | return TRUE; |
5bd4f169 AM |
4246 | } |
4247 | ||
e86ce104 AM |
4248 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
4249 | information on function code symbol entries to their corresponding | |
4250 | function descriptor symbol entries. */ | |
b34976b6 | 4251 | static bfd_boolean |
4ce794b7 | 4252 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 4253 | { |
e86ce104 | 4254 | struct bfd_link_info *info; |
65f38f15 | 4255 | struct ppc_link_hash_table *htab; |
411e1bfb | 4256 | struct plt_entry *ent; |
50bc7936 AM |
4257 | struct ppc_link_hash_entry *fh; |
4258 | struct ppc_link_hash_entry *fdh; | |
4259 | bfd_boolean force_local; | |
5bd4f169 | 4260 | |
50bc7936 AM |
4261 | fh = (struct ppc_link_hash_entry *) h; |
4262 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
b34976b6 | 4263 | return TRUE; |
e86ce104 | 4264 | |
50bc7936 AM |
4265 | if (fh->elf.root.type == bfd_link_hash_warning) |
4266 | fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link; | |
e92d460e | 4267 | |
4ce794b7 | 4268 | info = inf; |
65f38f15 | 4269 | htab = ppc_hash_table (info); |
5bd4f169 | 4270 | |
e86ce104 AM |
4271 | /* If this is a function code symbol, transfer dynamic linking |
4272 | information to the function descriptor symbol. */ | |
50bc7936 | 4273 | if (!fh->is_func) |
b34976b6 | 4274 | return TRUE; |
e86ce104 | 4275 | |
50bc7936 AM |
4276 | if (fh->elf.root.type == bfd_link_hash_undefweak |
4277 | && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR)) | |
b34976b6 | 4278 | htab->have_undefweak = TRUE; |
805fc799 | 4279 | |
50bc7936 | 4280 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
4281 | if (ent->plt.refcount > 0) |
4282 | break; | |
50bc7936 AM |
4283 | if (ent == NULL |
4284 | || fh->elf.root.root.string[0] != '.' | |
4285 | || fh->elf.root.root.string[1] == '\0') | |
4286 | return TRUE; | |
5bd4f169 | 4287 | |
50bc7936 AM |
4288 | /* Find the corresponding function descriptor symbol. Create it |
4289 | as undefined if necessary. */ | |
5bd4f169 | 4290 | |
50bc7936 AM |
4291 | fdh = get_fdh (fh, htab); |
4292 | if (fdh != NULL) | |
4293 | while (fdh->elf.root.type == bfd_link_hash_indirect | |
4294 | || fdh->elf.root.type == bfd_link_hash_warning) | |
4295 | fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link; | |
5bd4f169 | 4296 | |
50bc7936 AM |
4297 | if (fdh == NULL |
4298 | && info->shared | |
4299 | && (fh->elf.root.type == bfd_link_hash_undefined | |
4300 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
4301 | { | |
4302 | bfd *abfd; | |
4303 | asymbol *newsym; | |
4304 | struct bfd_link_hash_entry *bh; | |
4305 | ||
4306 | abfd = fh->elf.root.u.undef.abfd; | |
4307 | newsym = bfd_make_empty_symbol (abfd); | |
4308 | newsym->name = fh->elf.root.root.string + 1; | |
4309 | newsym->section = bfd_und_section_ptr; | |
4310 | newsym->value = 0; | |
4311 | newsym->flags = BSF_OBJECT; | |
4312 | if (fh->elf.root.type == bfd_link_hash_undefweak) | |
4313 | newsym->flags |= BSF_WEAK; | |
4314 | ||
4315 | bh = &fdh->elf.root; | |
4316 | if ( !(_bfd_generic_link_add_one_symbol | |
4317 | (info, abfd, newsym->name, newsym->flags, | |
4318 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) | |
648cca2c | 4319 | { |
50bc7936 | 4320 | return FALSE; |
648cca2c | 4321 | } |
50bc7936 AM |
4322 | fdh = (struct ppc_link_hash_entry *) bh; |
4323 | fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF; | |
4324 | fdh->elf.size = 24; | |
4325 | fdh->elf.type = STT_OBJECT; | |
4326 | } | |
648cca2c | 4327 | |
50bc7936 AM |
4328 | if (fdh != NULL |
4329 | && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
4330 | && (info->shared | |
4331 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4332 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0 | |
4333 | || (fdh->elf.root.type == bfd_link_hash_undefweak | |
4334 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
4335 | { | |
4336 | if (fdh->elf.dynindx == -1) | |
4337 | if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf)) | |
4338 | return FALSE; | |
4339 | fdh->elf.elf_link_hash_flags | |
4340 | |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR | |
4341 | | ELF_LINK_HASH_REF_DYNAMIC | |
4342 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
4343 | | ELF_LINK_NON_GOT_REF)); | |
4344 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) | |
e86ce104 | 4345 | { |
50bc7936 AM |
4346 | fdh->elf.plt.plist = fh->elf.plt.plist; |
4347 | fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
e86ce104 | 4348 | } |
50bc7936 AM |
4349 | fdh->is_func_descriptor = 1; |
4350 | fdh->oh = &fh->elf; | |
4351 | fh->oh = &fdh->elf; | |
e86ce104 AM |
4352 | } |
4353 | ||
50bc7936 AM |
4354 | /* Now that the info is on the function descriptor, clear the |
4355 | function code sym info. Any function code syms for which we | |
4356 | don't have a definition in a regular file, we force local. | |
4357 | This prevents a shared library from exporting syms that have | |
4358 | been imported from another library. Function code syms that | |
4359 | are really in the library we must leave global to prevent the | |
4360 | linker dragging in a definition from a static library. */ | |
4361 | force_local | |
4362 | = (info->shared | |
4363 | && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4364 | || fdh == NULL | |
4365 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4366 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)); | |
4367 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); | |
4368 | ||
b34976b6 | 4369 | return TRUE; |
e86ce104 | 4370 | } |
40b8271b | 4371 | |
82bd7b59 AM |
4372 | #define MIN_SAVE_FPR 14 |
4373 | #define MAX_SAVE_FPR 31 | |
4374 | ||
e86ce104 | 4375 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
4376 | this hook to a) provide some gcc support functions, and b) transfer |
4377 | dynamic linking information gathered so far on function code symbol | |
4378 | entries, to their corresponding function descriptor symbol entries. */ | |
b34976b6 | 4379 | static bfd_boolean |
4ce794b7 AM |
4380 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
4381 | struct bfd_link_info *info) | |
e86ce104 AM |
4382 | { |
4383 | struct ppc_link_hash_table *htab; | |
82bd7b59 AM |
4384 | unsigned int lowest_savef = MAX_SAVE_FPR + 2; |
4385 | unsigned int lowest_restf = MAX_SAVE_FPR + 2; | |
4386 | unsigned int i; | |
4387 | struct elf_link_hash_entry *h; | |
721956f4 | 4388 | bfd_byte *p; |
82bd7b59 | 4389 | char sym[10]; |
e86ce104 AM |
4390 | |
4391 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
4392 | |
4393 | if (htab->sfpr == NULL) | |
4394 | /* We don't have any relocs. */ | |
b34976b6 | 4395 | return TRUE; |
82bd7b59 AM |
4396 | |
4397 | /* First provide any missing ._savef* and ._restf* functions. */ | |
4398 | memcpy (sym, "._savef14", 10); | |
4399 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4400 | { | |
4401 | sym[7] = i / 10 + '0'; | |
4402 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4403 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 | 4404 | if (h != NULL |
772119ce | 4405 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
82bd7b59 AM |
4406 | { |
4407 | if (lowest_savef > i) | |
4408 | lowest_savef = i; | |
4409 | h->root.type = bfd_link_hash_defined; | |
4410 | h->root.u.def.section = htab->sfpr; | |
4411 | h->root.u.def.value = (i - lowest_savef) * 4; | |
4412 | h->type = STT_FUNC; | |
4413 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
772119ce | 4414 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
82bd7b59 AM |
4415 | } |
4416 | } | |
4417 | ||
4418 | memcpy (sym, "._restf14", 10); | |
4419 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4420 | { | |
4421 | sym[7] = i / 10 + '0'; | |
4422 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4423 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 | 4424 | if (h != NULL |
772119ce | 4425 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
82bd7b59 AM |
4426 | { |
4427 | if (lowest_restf > i) | |
4428 | lowest_restf = i; | |
4429 | h->root.type = bfd_link_hash_defined; | |
4430 | h->root.u.def.section = htab->sfpr; | |
4431 | h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 | |
4432 | + (i - lowest_restf) * 4); | |
4433 | h->type = STT_FUNC; | |
4434 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
772119ce | 4435 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
82bd7b59 AM |
4436 | } |
4437 | } | |
4438 | ||
4ce794b7 | 4439 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
805fc799 | 4440 | |
82bd7b59 AM |
4441 | htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 |
4442 | + (MAX_SAVE_FPR + 2 - lowest_restf) * 4); | |
4443 | ||
4444 | if (htab->sfpr->_raw_size == 0) | |
805fc799 AM |
4445 | { |
4446 | if (!htab->have_undefweak) | |
4447 | { | |
4448 | _bfd_strip_section_from_output (info, htab->sfpr); | |
b34976b6 | 4449 | return TRUE; |
805fc799 AM |
4450 | } |
4451 | ||
4452 | htab->sfpr->_raw_size = 4; | |
4453 | } | |
82bd7b59 | 4454 | |
4ce794b7 | 4455 | p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size); |
721956f4 | 4456 | if (p == NULL) |
b34976b6 | 4457 | return FALSE; |
721956f4 AM |
4458 | htab->sfpr->contents = p; |
4459 | ||
4460 | for (i = lowest_savef; i <= MAX_SAVE_FPR; i++) | |
4461 | { | |
4462 | unsigned int fpr = i << 21; | |
4463 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4464 | bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p); | |
4465 | p += 4; | |
4466 | } | |
4467 | if (lowest_savef <= MAX_SAVE_FPR) | |
4468 | { | |
82bd7b59 AM |
4469 | bfd_put_32 (htab->elf.dynobj, BLR, p); |
4470 | p += 4; | |
721956f4 | 4471 | } |
82bd7b59 | 4472 | |
721956f4 AM |
4473 | for (i = lowest_restf; i <= MAX_SAVE_FPR; i++) |
4474 | { | |
4475 | unsigned int fpr = i << 21; | |
4476 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4477 | bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p); | |
82bd7b59 AM |
4478 | p += 4; |
4479 | } | |
721956f4 AM |
4480 | if (lowest_restf <= MAX_SAVE_FPR |
4481 | || htab->sfpr->_raw_size == 4) | |
4482 | { | |
4483 | bfd_put_32 (htab->elf.dynobj, BLR, p); | |
4484 | } | |
82bd7b59 | 4485 | |
b34976b6 | 4486 | return TRUE; |
e86ce104 AM |
4487 | } |
4488 | ||
4489 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4490 | regular object. The current definition is in some section of the | |
4491 | dynamic object, but we're not including those sections. We have to | |
4492 | change the definition to something the rest of the link can | |
4493 | understand. */ | |
4494 | ||
b34976b6 | 4495 | static bfd_boolean |
4ce794b7 AM |
4496 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
4497 | struct elf_link_hash_entry *h) | |
e86ce104 AM |
4498 | { |
4499 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
4500 | asection *s; |
4501 | unsigned int power_of_two; | |
4502 | ||
4503 | htab = ppc_hash_table (info); | |
4504 | ||
4505 | /* Deal with function syms. */ | |
4506 | if (h->type == STT_FUNC | |
4507 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4508 | { | |
4509 | /* Clear procedure linkage table information for any symbol that | |
4510 | won't need a .plt entry. */ | |
411e1bfb AM |
4511 | struct plt_entry *ent; |
4512 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4513 | if (ent->plt.refcount > 0) | |
4514 | break; | |
e86ce104 | 4515 | if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor |
411e1bfb | 4516 | || ent == NULL |
9c7a29a3 AM |
4517 | || SYMBOL_CALLS_LOCAL (info, h) |
4518 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4519 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 4520 | { |
411e1bfb | 4521 | h->plt.plist = NULL; |
40b8271b | 4522 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
40b8271b | 4523 | } |
5bd4f169 | 4524 | } |
bbd7ec4a | 4525 | else |
411e1bfb | 4526 | h->plt.plist = NULL; |
5bd4f169 AM |
4527 | |
4528 | /* If this is a weak symbol, and there is a real definition, the | |
4529 | processor independent code will have arranged for us to see the | |
4530 | real definition first, and we can just use the same value. */ | |
4531 | if (h->weakdef != NULL) | |
4532 | { | |
4533 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4534 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4535 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4536 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
4537 | if (ELIMINATE_COPY_RELOCS) |
4538 | h->elf_link_hash_flags | |
4539 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
4540 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 4541 | return TRUE; |
5bd4f169 AM |
4542 | } |
4543 | ||
5bd4f169 AM |
4544 | /* If we are creating a shared library, we must presume that the |
4545 | only references to the symbol are via the global offset table. | |
4546 | For such cases we need not do anything here; the relocations will | |
4547 | be handled correctly by relocate_section. */ | |
4548 | if (info->shared) | |
b34976b6 | 4549 | return TRUE; |
5bd4f169 | 4550 | |
65f38f15 AM |
4551 | /* If there are no references to this symbol that do not use the |
4552 | GOT, we don't need to generate a copy reloc. */ | |
4553 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 4554 | return TRUE; |
65f38f15 | 4555 | |
f4656909 | 4556 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 4557 | { |
f4656909 AM |
4558 | struct ppc_link_hash_entry * eh; |
4559 | struct ppc_dyn_relocs *p; | |
65f38f15 | 4560 | |
f4656909 AM |
4561 | eh = (struct ppc_link_hash_entry *) h; |
4562 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4563 | { | |
4564 | s = p->sec->output_section; | |
4565 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
4566 | break; | |
4567 | } | |
4568 | ||
4569 | /* If we didn't find any dynamic relocs in read-only sections, then | |
4570 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
4571 | if (p == NULL) | |
4572 | { | |
4573 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
4574 | return TRUE; | |
4575 | } | |
65f38f15 AM |
4576 | } |
4577 | ||
5d35169e | 4578 | if (h->plt.plist != NULL) |
97b639ba AM |
4579 | { |
4580 | /* We should never get here, but unfortunately there are versions | |
4581 | of gcc out there that improperly (for this ABI) put initialized | |
4582 | function pointers, vtable refs and suchlike in read-only | |
4583 | sections. Allow them to proceed, but warn that this might | |
4584 | break at runtime. */ | |
4585 | (*_bfd_error_handler) | |
4586 | (_("copy reloc against `%s' requires lazy plt linking; " | |
4587 | "avoid setting LD_BIND_NOW=1 or upgrade gcc"), | |
4588 | h->root.root.string); | |
4589 | } | |
5d35169e AM |
4590 | |
4591 | /* This is a reference to a symbol defined by a dynamic object which | |
4592 | is not a function. */ | |
4593 | ||
5bd4f169 AM |
4594 | /* We must allocate the symbol in our .dynbss section, which will |
4595 | become part of the .bss section of the executable. There will be | |
4596 | an entry for this symbol in the .dynsym section. The dynamic | |
4597 | object will contain position independent code, so all references | |
4598 | from the dynamic object to this symbol will go through the global | |
4599 | offset table. The dynamic linker will use the .dynsym entry to | |
4600 | determine the address it must put in the global offset table, so | |
4601 | both the dynamic object and the regular object will refer to the | |
4602 | same memory location for the variable. */ | |
5bd4f169 | 4603 | |
04c9666a AM |
4604 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
4605 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
4606 | runtime process image. We need to remember the offset into the |
4607 | .rela.bss section we are going to use. */ | |
4608 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4609 | { | |
4ce794b7 | 4610 | htab->relbss->_raw_size += sizeof (Elf64_External_Rela); |
5bd4f169 AM |
4611 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4612 | } | |
4613 | ||
4614 | /* We need to figure out the alignment required for this symbol. I | |
4615 | have no idea how ELF linkers handle this. */ | |
4616 | power_of_two = bfd_log2 (h->size); | |
4617 | if (power_of_two > 4) | |
4618 | power_of_two = 4; | |
4619 | ||
4620 | /* Apply the required alignment. */ | |
4ce794b7 | 4621 | s = htab->dynbss; |
65f38f15 AM |
4622 | s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two)); |
4623 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
5bd4f169 | 4624 | { |
65f38f15 | 4625 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 4626 | return FALSE; |
5bd4f169 AM |
4627 | } |
4628 | ||
4629 | /* Define the symbol as being at this point in the section. */ | |
4630 | h->root.u.def.section = s; | |
4631 | h->root.u.def.value = s->_raw_size; | |
4632 | ||
4633 | /* Increment the section size to make room for the symbol. */ | |
4634 | s->_raw_size += h->size; | |
4635 | ||
b34976b6 | 4636 | return TRUE; |
5bd4f169 AM |
4637 | } |
4638 | ||
e86ce104 AM |
4639 | /* If given a function descriptor symbol, hide both the function code |
4640 | sym and the descriptor. */ | |
4641 | static void | |
4ce794b7 AM |
4642 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
4643 | struct elf_link_hash_entry *h, | |
4644 | bfd_boolean force_local) | |
e86ce104 AM |
4645 | { |
4646 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); | |
4647 | ||
4648 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) | |
4649 | { | |
721956f4 | 4650 | struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh; |
e86ce104 | 4651 | |
721956f4 | 4652 | if (fh == NULL) |
d1329ca3 AM |
4653 | { |
4654 | const char *p, *q; | |
4655 | struct ppc_link_hash_table *htab; | |
4656 | char save; | |
4657 | ||
4658 | /* We aren't supposed to use alloca in BFD because on | |
4659 | systems which do not have alloca the version in libiberty | |
4660 | calls xmalloc, which might cause the program to crash | |
4661 | when it runs out of memory. This function doesn't have a | |
4662 | return status, so there's no way to gracefully return an | |
4663 | error. So cheat. We know that string[-1] can be safely | |
4664 | dereferenced; It's either a string in an ELF string | |
4665 | table, or allocated in an objalloc structure. */ | |
4666 | ||
4667 | p = h->root.root.string - 1; | |
4668 | save = *p; | |
4669 | *(char *) p = '.'; | |
4670 | htab = ppc_hash_table (info); | |
b34976b6 | 4671 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4672 | *(char *) p = save; |
4673 | ||
4674 | /* Unfortunately, if it so happens that the string we were | |
4675 | looking for was allocated immediately before this string, | |
4676 | then we overwrote the string terminator. That's the only | |
4677 | reason the lookup should fail. */ | |
4678 | if (fh == NULL) | |
4679 | { | |
4680 | q = h->root.root.string + strlen (h->root.root.string); | |
4681 | while (q >= h->root.root.string && *q == *p) | |
4682 | --q, --p; | |
4683 | if (q < h->root.root.string && *p == '.') | |
b34976b6 | 4684 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4685 | } |
4686 | if (fh != NULL) | |
4687 | { | |
4688 | ((struct ppc_link_hash_entry *) h)->oh = fh; | |
4689 | ((struct ppc_link_hash_entry *) fh)->oh = h; | |
4690 | } | |
4691 | } | |
e86ce104 AM |
4692 | if (fh != NULL) |
4693 | _bfd_elf_link_hash_hide_symbol (info, fh, force_local); | |
4694 | } | |
4695 | } | |
4696 | ||
411e1bfb | 4697 | static bfd_boolean |
4ce794b7 AM |
4698 | get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp, |
4699 | asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp, | |
4700 | unsigned long r_symndx, bfd *ibfd) | |
411e1bfb AM |
4701 | { |
4702 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4703 | ||
4704 | if (r_symndx >= symtab_hdr->sh_info) | |
4705 | { | |
4706 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4707 | struct elf_link_hash_entry *h; | |
4708 | ||
4709 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4710 | while (h->root.type == bfd_link_hash_indirect | |
4711 | || h->root.type == bfd_link_hash_warning) | |
4712 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4713 | ||
4714 | if (hp != NULL) | |
4715 | *hp = h; | |
4716 | ||
4717 | if (symp != NULL) | |
4718 | *symp = NULL; | |
4719 | ||
4720 | if (symsecp != NULL) | |
4721 | { | |
4722 | asection *symsec = NULL; | |
4723 | if (h->root.type == bfd_link_hash_defined | |
4724 | || h->root.type == bfd_link_hash_defweak) | |
4725 | symsec = h->root.u.def.section; | |
4726 | *symsecp = symsec; | |
4727 | } | |
4728 | ||
e7b938ca | 4729 | if (tls_maskp != NULL) |
411e1bfb AM |
4730 | { |
4731 | struct ppc_link_hash_entry *eh; | |
4732 | ||
4733 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4734 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
4735 | } |
4736 | } | |
4737 | else | |
4738 | { | |
4739 | Elf_Internal_Sym *sym; | |
4740 | Elf_Internal_Sym *locsyms = *locsymsp; | |
4741 | ||
4742 | if (locsyms == NULL) | |
4743 | { | |
4744 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4745 | if (locsyms == NULL) | |
4746 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4747 | symtab_hdr->sh_info, | |
4748 | 0, NULL, NULL, NULL); | |
4749 | if (locsyms == NULL) | |
4750 | return FALSE; | |
4751 | *locsymsp = locsyms; | |
4752 | } | |
4753 | sym = locsyms + r_symndx; | |
4754 | ||
4755 | if (hp != NULL) | |
4756 | *hp = NULL; | |
4757 | ||
4758 | if (symp != NULL) | |
4759 | *symp = sym; | |
4760 | ||
4761 | if (symsecp != NULL) | |
4762 | { | |
4763 | asection *symsec = NULL; | |
4764 | if ((sym->st_shndx != SHN_UNDEF | |
4765 | && sym->st_shndx < SHN_LORESERVE) | |
4766 | || sym->st_shndx > SHN_HIRESERVE) | |
4767 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
4768 | *symsecp = symsec; | |
4769 | } | |
4770 | ||
e7b938ca | 4771 | if (tls_maskp != NULL) |
411e1bfb AM |
4772 | { |
4773 | struct got_entry **lgot_ents; | |
e7b938ca | 4774 | char *tls_mask; |
411e1bfb | 4775 | |
e7b938ca | 4776 | tls_mask = NULL; |
411e1bfb AM |
4777 | lgot_ents = elf_local_got_ents (ibfd); |
4778 | if (lgot_ents != NULL) | |
4779 | { | |
e7b938ca AM |
4780 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
4781 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 4782 | } |
e7b938ca | 4783 | *tls_maskp = tls_mask; |
411e1bfb AM |
4784 | } |
4785 | } | |
4786 | return TRUE; | |
4787 | } | |
4788 | ||
e7b938ca | 4789 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 4790 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 4791 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
4792 | |
4793 | static int | |
0d4792f7 AM |
4794 | get_tls_mask (char **tls_maskp, unsigned long *toc_symndx, |
4795 | Elf_Internal_Sym **locsymsp, | |
4ce794b7 | 4796 | const Elf_Internal_Rela *rel, bfd *ibfd) |
411e1bfb AM |
4797 | { |
4798 | unsigned long r_symndx; | |
0d4792f7 | 4799 | int next_r; |
411e1bfb AM |
4800 | struct elf_link_hash_entry *h; |
4801 | Elf_Internal_Sym *sym; | |
4802 | asection *sec; | |
4803 | bfd_vma off; | |
4804 | ||
4805 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 4806 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4807 | return 0; |
411e1bfb | 4808 | |
e7b938ca | 4809 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
4810 | || sec == NULL |
4811 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 4812 | return 1; |
411e1bfb AM |
4813 | |
4814 | /* Look inside a TOC section too. */ | |
4815 | if (h != NULL) | |
4816 | { | |
4817 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
4818 | off = h->root.u.def.value; | |
4819 | } | |
4820 | else | |
4821 | off = sym->st_value; | |
4822 | off += rel->r_addend; | |
4823 | BFD_ASSERT (off % 8 == 0); | |
4824 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 4825 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 4826 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4827 | return 0; |
0d4792f7 AM |
4828 | if (toc_symndx != NULL) |
4829 | *toc_symndx = r_symndx; | |
4830 | if ((h == NULL | |
4831 | || ((h->root.type == bfd_link_hash_defined | |
4832 | || h->root.type == bfd_link_hash_defweak) | |
4833 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4834 | && (next_r == -1 || next_r == -2)) | |
4835 | return 1 - next_r; | |
951fd09b | 4836 | return 1; |
411e1bfb AM |
4837 | } |
4838 | ||
b34976b6 | 4839 | bfd_boolean |
4ce794b7 | 4840 | ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info) |
1e2f5b6e AM |
4841 | { |
4842 | bfd *ibfd; | |
1e2f5b6e | 4843 | |
411e1bfb | 4844 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
4845 | { |
4846 | asection *sec; | |
4847 | Elf_Internal_Rela *relstart, *rel, *relend; | |
4848 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 4849 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
4850 | struct elf_link_hash_entry **sym_hashes; |
4851 | bfd_vma offset; | |
d6fe2dc1 | 4852 | bfd_size_type amt; |
1e2f5b6e | 4853 | long *adjust; |
b34976b6 | 4854 | bfd_boolean need_edit; |
1e2f5b6e AM |
4855 | |
4856 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
4857 | if (sec == NULL) | |
4858 | continue; | |
4859 | ||
d6fe2dc1 | 4860 | amt = sec->_raw_size * sizeof (long) / 24; |
f0abc2a1 | 4861 | adjust = ppc64_elf_section_data (sec)->opd.adjust; |
d6fe2dc1 AM |
4862 | if (adjust == NULL) |
4863 | { | |
4864 | /* Must be a ld -r link. ie. check_relocs hasn't been | |
4865 | called. */ | |
4ce794b7 | 4866 | adjust = bfd_zalloc (obfd, amt); |
f0abc2a1 | 4867 | ppc64_elf_section_data (sec)->opd.adjust = adjust; |
d6fe2dc1 | 4868 | } |
4ce794b7 | 4869 | memset (adjust, 0, amt); |
1e2f5b6e AM |
4870 | |
4871 | if (sec->output_section == bfd_abs_section_ptr) | |
4872 | continue; | |
4873 | ||
4874 | /* Look through the section relocs. */ | |
4875 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
4876 | continue; | |
4877 | ||
6cdc0ccc | 4878 | local_syms = NULL; |
1e2f5b6e AM |
4879 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
4880 | sym_hashes = elf_sym_hashes (ibfd); | |
4881 | ||
4882 | /* Read the relocations. */ | |
4ce794b7 | 4883 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 4884 | info->keep_memory); |
1e2f5b6e | 4885 | if (relstart == NULL) |
b34976b6 | 4886 | return FALSE; |
1e2f5b6e AM |
4887 | |
4888 | /* First run through the relocs to check they are sane, and to | |
4889 | determine whether we need to edit this opd section. */ | |
b34976b6 | 4890 | need_edit = FALSE; |
1e2f5b6e AM |
4891 | offset = 0; |
4892 | relend = relstart + sec->reloc_count; | |
50bc7936 | 4893 | for (rel = relstart; rel < relend; ) |
1e2f5b6e | 4894 | { |
04c9666a | 4895 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
4896 | unsigned long r_symndx; |
4897 | asection *sym_sec; | |
4898 | struct elf_link_hash_entry *h; | |
4899 | Elf_Internal_Sym *sym; | |
4900 | ||
4901 | /* .opd contains a regular array of 24 byte entries. We're | |
4902 | only interested in the reloc pointing to a function entry | |
4903 | point. */ | |
50bc7936 AM |
4904 | if (rel->r_offset != offset |
4905 | || rel + 1 >= relend | |
4906 | || (rel + 1)->r_offset != offset + 8) | |
1e2f5b6e AM |
4907 | { |
4908 | /* If someone messes with .opd alignment then after a | |
4909 | "ld -r" we might have padding in the middle of .opd. | |
4910 | Also, there's nothing to prevent someone putting | |
4911 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 4912 | optimization for them! */ |
1e2f5b6e AM |
4913 | (*_bfd_error_handler) |
4914 | (_("%s: .opd is not a regular array of opd entries"), | |
4915 | bfd_archive_filename (ibfd)); | |
b34976b6 | 4916 | need_edit = FALSE; |
1e2f5b6e AM |
4917 | break; |
4918 | } | |
4919 | ||
50bc7936 AM |
4920 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
4921 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
4922 | { | |
4923 | (*_bfd_error_handler) | |
4924 | (_("%s: unexpected reloc type %u in .opd section"), | |
4925 | bfd_archive_filename (ibfd), r_type); | |
4926 | need_edit = FALSE; | |
4927 | break; | |
4928 | } | |
4929 | ||
1e2f5b6e | 4930 | r_symndx = ELF64_R_SYM (rel->r_info); |
411e1bfb AM |
4931 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
4932 | r_symndx, ibfd)) | |
50bc7936 | 4933 | goto error_ret; |
1e2f5b6e AM |
4934 | |
4935 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
4936 | { | |
411e1bfb AM |
4937 | const char *sym_name; |
4938 | if (h != NULL) | |
4939 | sym_name = h->root.root.string; | |
4940 | else | |
4941 | sym_name = bfd_elf_local_sym_name (ibfd, sym); | |
4942 | ||
1e2f5b6e AM |
4943 | (*_bfd_error_handler) |
4944 | (_("%s: undefined sym `%s' in .opd section"), | |
4945 | bfd_archive_filename (ibfd), | |
411e1bfb | 4946 | sym_name); |
b34976b6 | 4947 | need_edit = FALSE; |
1e2f5b6e AM |
4948 | break; |
4949 | } | |
4950 | ||
51020317 AM |
4951 | /* opd entries are always for functions defined in the |
4952 | current input bfd. If the symbol isn't defined in the | |
4953 | input bfd, then we won't be using the function in this | |
4954 | bfd; It must be defined in a linkonce section in another | |
4955 | bfd, or is weak. It's also possible that we are | |
4956 | discarding the function due to a linker script /DISCARD/, | |
4957 | which we test for via the output_section. */ | |
4958 | if (sym_sec->owner != ibfd | |
4959 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 4960 | need_edit = TRUE; |
1e2f5b6e AM |
4961 | |
4962 | offset += 24; | |
50bc7936 AM |
4963 | rel += 2; |
4964 | /* Allow for the possibility of a reloc on the third word. */ | |
4965 | if (rel < relend | |
4966 | && rel->r_offset == offset - 8) | |
4967 | rel += 1; | |
1e2f5b6e AM |
4968 | } |
4969 | ||
4970 | if (need_edit) | |
4971 | { | |
4972 | Elf_Internal_Rela *write_rel; | |
4973 | bfd_byte *rptr, *wptr; | |
b34976b6 | 4974 | bfd_boolean skip; |
1e2f5b6e AM |
4975 | |
4976 | /* This seems a waste of time as input .opd sections are all | |
4977 | zeros as generated by gcc, but I suppose there's no reason | |
4978 | this will always be so. We might start putting something in | |
4979 | the third word of .opd entries. */ | |
4980 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
4981 | { | |
4982 | bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size); | |
6cdc0ccc | 4983 | if (loc == NULL |
4ce794b7 | 4984 | || !bfd_get_section_contents (ibfd, sec, loc, 0, |
6cdc0ccc AM |
4985 | sec->_raw_size)) |
4986 | { | |
50bc7936 | 4987 | error_ret: |
6cdc0ccc AM |
4988 | if (local_syms != NULL |
4989 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
4990 | free (local_syms); | |
6cdc0ccc AM |
4991 | if (elf_section_data (sec)->relocs != relstart) |
4992 | free (relstart); | |
b34976b6 | 4993 | return FALSE; |
6cdc0ccc | 4994 | } |
1e2f5b6e AM |
4995 | sec->contents = loc; |
4996 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
4997 | } | |
4998 | ||
4999 | elf_section_data (sec)->relocs = relstart; | |
5000 | ||
5001 | wptr = sec->contents; | |
5002 | rptr = sec->contents; | |
5003 | write_rel = relstart; | |
b34976b6 | 5004 | skip = FALSE; |
1e2f5b6e AM |
5005 | offset = 0; |
5006 | for (rel = relstart; rel < relend; rel++) | |
5007 | { | |
50bc7936 AM |
5008 | unsigned long r_symndx; |
5009 | asection *sym_sec; | |
5010 | struct elf_link_hash_entry *h; | |
5011 | Elf_Internal_Sym *sym; | |
5012 | ||
5013 | r_symndx = ELF64_R_SYM (rel->r_info); | |
5014 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
5015 | r_symndx, ibfd)) | |
5016 | goto error_ret; | |
5017 | ||
1e2f5b6e AM |
5018 | if (rel->r_offset == offset) |
5019 | { | |
50bc7936 AM |
5020 | struct ppc_link_hash_entry *fdh = NULL; |
5021 | if (h != NULL) | |
5022 | fdh = get_fdh ((struct ppc_link_hash_entry *) h, | |
5023 | ppc_hash_table (info)); | |
1e2f5b6e | 5024 | |
51020317 AM |
5025 | skip = (sym_sec->owner != ibfd |
5026 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
5027 | if (skip) |
5028 | { | |
0be617ce | 5029 | if (h != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
5030 | { |
5031 | /* Arrange for the function descriptor sym | |
5032 | to be dropped. */ | |
d6fe2dc1 AM |
5033 | fdh->elf.root.u.def.value = 0; |
5034 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 AM |
5035 | } |
5036 | } | |
5037 | else | |
1e2f5b6e AM |
5038 | { |
5039 | /* We'll be keeping this opd entry. */ | |
5040 | ||
5041 | if (h != NULL) | |
5042 | { | |
5043 | /* Redefine the function descriptor symbol | |
5044 | to this location in the opd section. | |
5045 | We've checked above that opd relocs are | |
5046 | ordered. */ | |
d6fe2dc1 | 5047 | fdh->elf.root.u.def.value = wptr - sec->contents; |
1e2f5b6e AM |
5048 | } |
5049 | else | |
5050 | { | |
6cdc0ccc AM |
5051 | /* Local syms are a bit tricky. We could |
5052 | tweak them as they can be cached, but | |
5053 | we'd need to look through the local syms | |
5054 | for the function descriptor sym which we | |
5055 | don't have at the moment. So keep an | |
b34976b6 | 5056 | array of adjustments. */ |
7f6a7663 | 5057 | adjust[rel->r_offset / 24] = wptr - rptr; |
1e2f5b6e AM |
5058 | } |
5059 | ||
5060 | if (wptr != rptr) | |
5061 | memcpy (wptr, rptr, 24); | |
5062 | wptr += 24; | |
5063 | } | |
5064 | rptr += 24; | |
5065 | offset += 24; | |
5066 | } | |
5067 | ||
50bc7936 AM |
5068 | if (skip) |
5069 | { | |
5070 | BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info))); | |
5071 | if (info->shared) | |
5072 | { | |
5073 | /* We won't be needing dynamic relocs here. */ | |
5074 | struct ppc_dyn_relocs **pp; | |
5075 | struct ppc_dyn_relocs *p; | |
5076 | ||
5077 | if (h != NULL) | |
5078 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
5079 | else if (sym_sec != NULL) | |
5080 | pp = ((struct ppc_dyn_relocs **) | |
5081 | &elf_section_data (sym_sec)->local_dynrel); | |
5082 | else | |
5083 | pp = ((struct ppc_dyn_relocs **) | |
5084 | &elf_section_data (sec)->local_dynrel); | |
5085 | while ((p = *pp) != NULL) | |
5086 | { | |
5087 | if (p->sec == sec) | |
5088 | { | |
5089 | p->count -= 1; | |
5090 | if (p->count == 0) | |
5091 | *pp = p->next; | |
5092 | break; | |
5093 | } | |
5094 | pp = &p->next; | |
5095 | } | |
5096 | } | |
5097 | } | |
5098 | else | |
1e2f5b6e | 5099 | { |
50bc7936 AM |
5100 | /* We need to adjust any reloc offsets to point to the |
5101 | new opd entries. While we're at it, we may as well | |
5102 | remove redundant relocs. */ | |
1e2f5b6e AM |
5103 | rel->r_offset += wptr - rptr; |
5104 | if (write_rel != rel) | |
5105 | memcpy (write_rel, rel, sizeof (*rel)); | |
5106 | ++write_rel; | |
5107 | } | |
5108 | } | |
5109 | ||
5110 | sec->_cooked_size = wptr - sec->contents; | |
5111 | sec->reloc_count = write_rel - relstart; | |
cdcf6e38 AM |
5112 | /* Fudge the size too, as this is used later in |
5113 | elf_bfd_final_link if we are emitting relocs. */ | |
5114 | elf_section_data (sec)->rel_hdr.sh_size | |
5115 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
5116 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
1e2f5b6e | 5117 | } |
6cdc0ccc | 5118 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 5119 | free (relstart); |
6cdc0ccc | 5120 | |
411e1bfb AM |
5121 | if (local_syms != NULL |
5122 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5123 | { | |
5124 | if (!info->keep_memory) | |
5125 | free (local_syms); | |
5126 | else | |
5127 | symtab_hdr->contents = (unsigned char *) local_syms; | |
5128 | } | |
5129 | } | |
5130 | ||
5131 | return TRUE; | |
5132 | } | |
5133 | ||
951fd09b | 5134 | /* Set htab->tls_sec. */ |
411e1bfb AM |
5135 | |
5136 | bfd_boolean | |
4ce794b7 | 5137 | ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
411e1bfb AM |
5138 | { |
5139 | asection *tls; | |
411e1bfb AM |
5140 | struct ppc_link_hash_table *htab; |
5141 | ||
411e1bfb AM |
5142 | for (tls = obfd->sections; tls != NULL; tls = tls->next) |
5143 | if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5144 | == (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5145 | break; | |
411e1bfb AM |
5146 | |
5147 | htab = ppc_hash_table (info); | |
5148 | htab->tls_sec = tls; | |
a48ebf4d AM |
5149 | |
5150 | if (htab->tls_get_addr != NULL) | |
5151 | { | |
5152 | struct elf_link_hash_entry *h = htab->tls_get_addr; | |
5153 | ||
5154 | while (h->root.type == bfd_link_hash_indirect | |
5155 | || h->root.type == bfd_link_hash_warning) | |
5156 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5157 | ||
5158 | htab->tls_get_addr = h; | |
5159 | } | |
5160 | ||
951fd09b AM |
5161 | return tls != NULL; |
5162 | } | |
411e1bfb | 5163 | |
951fd09b AM |
5164 | /* Run through all the TLS relocs looking for optimization |
5165 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
5166 | a preliminary section layout so that we know the TLS segment | |
5167 | offsets. We can't optimize earlier because some optimizations need | |
5168 | to know the tp offset, and we need to optimize before allocating | |
5169 | dynamic relocations. */ | |
5170 | ||
5171 | bfd_boolean | |
4ce794b7 | 5172 | ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
951fd09b AM |
5173 | { |
5174 | bfd *ibfd; | |
5175 | asection *sec; | |
5176 | struct ppc_link_hash_table *htab; | |
5177 | ||
1049f94e | 5178 | if (info->relocatable || info->shared) |
411e1bfb AM |
5179 | return TRUE; |
5180 | ||
951fd09b | 5181 | htab = ppc_hash_table (info); |
411e1bfb AM |
5182 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5183 | { | |
5184 | Elf_Internal_Sym *locsyms = NULL; | |
5185 | ||
5186 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
5187 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5188 | { | |
5189 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5190 | int expecting_tls_get_addr; | |
5191 | ||
5192 | /* Read the relocations. */ | |
4ce794b7 | 5193 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 5194 | info->keep_memory); |
411e1bfb AM |
5195 | if (relstart == NULL) |
5196 | return FALSE; | |
5197 | ||
5198 | expecting_tls_get_addr = 0; | |
5199 | relend = relstart + sec->reloc_count; | |
5200 | for (rel = relstart; rel < relend; rel++) | |
5201 | { | |
5202 | enum elf_ppc64_reloc_type r_type; | |
5203 | unsigned long r_symndx; | |
5204 | struct elf_link_hash_entry *h; | |
5205 | Elf_Internal_Sym *sym; | |
5206 | asection *sym_sec; | |
e7b938ca AM |
5207 | char *tls_mask; |
5208 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 5209 | bfd_vma value; |
951fd09b | 5210 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
5211 | |
5212 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5213 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
5214 | r_symndx, ibfd)) |
5215 | { | |
5216 | err_free_rel: | |
5217 | if (elf_section_data (sec)->relocs != relstart) | |
5218 | free (relstart); | |
5219 | if (locsyms != NULL | |
5220 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5221 | != (unsigned char *) locsyms)) | |
5222 | free (locsyms); | |
5223 | return FALSE; | |
5224 | } | |
5225 | ||
5226 | if (h != NULL) | |
5227 | { | |
5228 | if (h->root.type != bfd_link_hash_defined | |
5229 | && h->root.type != bfd_link_hash_defweak) | |
5230 | continue; | |
5231 | value = h->root.u.def.value; | |
5232 | } | |
5233 | else | |
5234 | value = sym->st_value; | |
951fd09b | 5235 | |
411e1bfb | 5236 | ok_tprel = FALSE; |
951fd09b AM |
5237 | is_local = FALSE; |
5238 | if (h == NULL | |
5239 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5240 | { |
951fd09b | 5241 | is_local = TRUE; |
411e1bfb AM |
5242 | value += sym_sec->output_offset; |
5243 | value += sym_sec->output_section->vma; | |
5244 | value -= htab->tls_sec->vma; | |
5245 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
5246 | < (bfd_vma) 1 << 32); | |
5247 | } | |
5248 | ||
4ce794b7 | 5249 | r_type = ELF64_R_TYPE (rel->r_info); |
411e1bfb AM |
5250 | switch (r_type) |
5251 | { | |
5252 | case R_PPC64_GOT_TLSLD16: | |
5253 | case R_PPC64_GOT_TLSLD16_LO: | |
5254 | case R_PPC64_GOT_TLSLD16_HI: | |
5255 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
5256 | /* These relocs should never be against a symbol |
5257 | defined in a shared lib. Leave them alone if | |
5258 | that turns out to be the case. */ | |
e717da7e | 5259 | ppc64_tlsld_got (ibfd)->refcount -= 1; |
951fd09b AM |
5260 | if (!is_local) |
5261 | continue; | |
5262 | ||
951fd09b AM |
5263 | /* LD -> LE */ |
5264 | tls_set = 0; | |
5265 | tls_clear = TLS_LD; | |
e7b938ca | 5266 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5267 | expecting_tls_get_addr = 1; |
5268 | break; | |
5269 | ||
5270 | case R_PPC64_GOT_TLSGD16: | |
5271 | case R_PPC64_GOT_TLSGD16_LO: | |
5272 | case R_PPC64_GOT_TLSGD16_HI: | |
5273 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5274 | if (ok_tprel) |
411e1bfb AM |
5275 | /* GD -> LE */ |
5276 | tls_set = 0; | |
5277 | else | |
5278 | /* GD -> IE */ | |
951fd09b AM |
5279 | tls_set = TLS_TLS | TLS_TPRELGD; |
5280 | tls_clear = TLS_GD; | |
e7b938ca | 5281 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5282 | expecting_tls_get_addr = 1; |
5283 | break; | |
5284 | ||
5285 | case R_PPC64_GOT_TPREL16_DS: | |
5286 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5287 | case R_PPC64_GOT_TPREL16_HI: | |
5288 | case R_PPC64_GOT_TPREL16_HA: | |
5289 | expecting_tls_get_addr = 0; | |
5290 | if (ok_tprel) | |
5291 | { | |
5292 | /* IE -> LE */ | |
5293 | tls_set = 0; | |
5294 | tls_clear = TLS_TPREL; | |
e7b938ca | 5295 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
5296 | break; |
5297 | } | |
5298 | else | |
5299 | continue; | |
5300 | ||
5301 | case R_PPC64_REL14: | |
5302 | case R_PPC64_REL14_BRTAKEN: | |
5303 | case R_PPC64_REL14_BRNTAKEN: | |
5304 | case R_PPC64_REL24: | |
5305 | if (h != NULL | |
5306 | && h == htab->tls_get_addr) | |
5307 | { | |
5308 | if (!expecting_tls_get_addr | |
5309 | && rel != relstart | |
5310 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
5311 | == R_PPC64_TOC16) | |
5312 | || (ELF64_R_TYPE (rel[-1].r_info) | |
5313 | == R_PPC64_TOC16_LO))) | |
5314 | { | |
5315 | /* Check for toc tls entries. */ | |
5316 | char *toc_tls; | |
951fd09b | 5317 | int retval; |
411e1bfb | 5318 | |
0d4792f7 | 5319 | retval = get_tls_mask (&toc_tls, NULL, &locsyms, |
951fd09b AM |
5320 | rel - 1, ibfd); |
5321 | if (retval == 0) | |
411e1bfb AM |
5322 | goto err_free_rel; |
5323 | if (toc_tls != NULL) | |
951fd09b | 5324 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
5325 | } |
5326 | ||
5327 | if (expecting_tls_get_addr) | |
5328 | { | |
5329 | struct plt_entry *ent; | |
5330 | for (ent = h->plt.plist; ent; ent = ent->next) | |
5331 | if (ent->addend == 0) | |
5332 | { | |
5333 | if (ent->plt.refcount > 0) | |
5334 | ent->plt.refcount -= 1; | |
5335 | break; | |
5336 | } | |
5337 | } | |
5338 | } | |
5339 | expecting_tls_get_addr = 0; | |
5340 | continue; | |
5341 | ||
5342 | case R_PPC64_TPREL64: | |
5343 | expecting_tls_get_addr = 0; | |
5344 | if (ok_tprel) | |
5345 | { | |
5346 | /* IE -> LE */ | |
5347 | tls_set = TLS_EXPLICIT; | |
5348 | tls_clear = TLS_TPREL; | |
5349 | break; | |
5350 | } | |
5351 | else | |
5352 | continue; | |
5353 | ||
5354 | case R_PPC64_DTPMOD64: | |
5355 | expecting_tls_get_addr = 0; | |
951fd09b AM |
5356 | if (rel + 1 < relend |
5357 | && (rel[1].r_info | |
5358 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
5359 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 5360 | { |
951fd09b | 5361 | if (ok_tprel) |
411e1bfb | 5362 | /* GD -> LE */ |
951fd09b | 5363 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
5364 | else |
5365 | /* GD -> IE */ | |
951fd09b AM |
5366 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
5367 | tls_clear = TLS_GD; | |
411e1bfb AM |
5368 | } |
5369 | else | |
5370 | { | |
951fd09b AM |
5371 | if (!is_local) |
5372 | continue; | |
5373 | ||
5374 | /* LD -> LE */ | |
5375 | tls_set = TLS_EXPLICIT; | |
5376 | tls_clear = TLS_LD; | |
411e1bfb AM |
5377 | } |
5378 | break; | |
5379 | ||
5380 | default: | |
5381 | expecting_tls_get_addr = 0; | |
5382 | continue; | |
5383 | } | |
5384 | ||
5385 | if ((tls_set & TLS_EXPLICIT) == 0) | |
5386 | { | |
5387 | struct got_entry *ent; | |
5388 | ||
5389 | /* Adjust got entry for this reloc. */ | |
5390 | if (h != NULL) | |
5391 | ent = h->got.glist; | |
5392 | else | |
5393 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
5394 | ||
5395 | for (; ent != NULL; ent = ent->next) | |
5396 | if (ent->addend == rel->r_addend | |
e717da7e | 5397 | && ent->owner == ibfd |
e7b938ca | 5398 | && ent->tls_type == tls_type) |
411e1bfb AM |
5399 | break; |
5400 | if (ent == NULL) | |
5401 | abort (); | |
5402 | ||
5403 | if (tls_set == 0) | |
5404 | { | |
5405 | /* We managed to get rid of a got entry. */ | |
5406 | if (ent->got.refcount > 0) | |
5407 | ent->got.refcount -= 1; | |
5408 | } | |
411e1bfb AM |
5409 | } |
5410 | else if (h != NULL) | |
5411 | { | |
5412 | struct ppc_link_hash_entry * eh; | |
5413 | struct ppc_dyn_relocs **pp; | |
5414 | struct ppc_dyn_relocs *p; | |
5415 | ||
5416 | /* Adjust dynamic relocs. */ | |
5417 | eh = (struct ppc_link_hash_entry *) h; | |
5418 | for (pp = &eh->dyn_relocs; | |
5419 | (p = *pp) != NULL; | |
5420 | pp = &p->next) | |
5421 | if (p->sec == sec) | |
5422 | { | |
5423 | /* If we got rid of a DTPMOD/DTPREL reloc | |
5424 | pair then we'll lose one or two dyn | |
5425 | relocs. */ | |
951fd09b | 5426 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 5427 | p->count -= 1; |
951fd09b | 5428 | p->count -= 1; |
411e1bfb AM |
5429 | if (p->count == 0) |
5430 | *pp = p->next; | |
5431 | break; | |
5432 | } | |
5433 | } | |
5434 | ||
e7b938ca AM |
5435 | *tls_mask |= tls_set; |
5436 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
5437 | } |
5438 | ||
5439 | if (elf_section_data (sec)->relocs != relstart) | |
5440 | free (relstart); | |
5441 | } | |
5442 | ||
5443 | if (locsyms != NULL | |
5444 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5445 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
5446 | { |
5447 | if (!info->keep_memory) | |
411e1bfb | 5448 | free (locsyms); |
6cdc0ccc | 5449 | else |
411e1bfb | 5450 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 5451 | } |
1e2f5b6e | 5452 | } |
b34976b6 | 5453 | return TRUE; |
1e2f5b6e | 5454 | } |
b34976b6 | 5455 | |
65f38f15 AM |
5456 | /* This is the condition under which ppc64_elf_finish_dynamic_symbol |
5457 | will be called from elflink.h. If elflink.h doesn't call our | |
5458 | finish_dynamic_symbol routine, we'll need to do something about | |
5459 | initializing any .plt and .got entries in ppc64_elf_relocate_section. */ | |
f4656909 | 5460 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
65f38f15 | 5461 | ((DYN) \ |
f4656909 | 5462 | && ((SHARED) \ |
65f38f15 AM |
5463 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
5464 | && ((H)->dynindx != -1 \ | |
5465 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
5bd4f169 | 5466 | |
65f38f15 AM |
5467 | /* Allocate space in .plt, .got and associated reloc sections for |
5468 | dynamic relocs. */ | |
5bd4f169 | 5469 | |
b34976b6 | 5470 | static bfd_boolean |
4ce794b7 | 5471 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 5472 | { |
65f38f15 AM |
5473 | struct bfd_link_info *info; |
5474 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 5475 | asection *s; |
65f38f15 AM |
5476 | struct ppc_link_hash_entry *eh; |
5477 | struct ppc_dyn_relocs *p; | |
411e1bfb | 5478 | struct got_entry *gent; |
5bd4f169 | 5479 | |
e92d460e | 5480 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5481 | return TRUE; |
5bd4f169 | 5482 | |
e92d460e AM |
5483 | if (h->root.type == bfd_link_hash_warning) |
5484 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5485 | ||
65f38f15 AM |
5486 | info = (struct bfd_link_info *) inf; |
5487 | htab = ppc_hash_table (info); | |
5bd4f169 | 5488 | |
65f38f15 | 5489 | if (htab->elf.dynamic_sections_created |
411e1bfb | 5490 | && h->dynindx != -1 |
9c7a29a3 | 5491 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 5492 | { |
411e1bfb AM |
5493 | struct plt_entry *pent; |
5494 | bfd_boolean doneone = FALSE; | |
5495 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
5496 | if (pent->plt.refcount > 0) | |
5497 | { | |
5498 | BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor); | |
5499 | ||
5500 | /* If this is the first .plt entry, make room for the special | |
5501 | first entry. */ | |
4ce794b7 | 5502 | s = htab->plt; |
411e1bfb AM |
5503 | if (s->_raw_size == 0) |
5504 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
5505 | ||
5506 | pent->plt.offset = s->_raw_size; | |
5507 | ||
5508 | /* Make room for this entry. */ | |
5509 | s->_raw_size += PLT_ENTRY_SIZE; | |
5510 | ||
5511 | /* Make room for the .glink code. */ | |
4ce794b7 | 5512 | s = htab->glink; |
411e1bfb AM |
5513 | if (s->_raw_size == 0) |
5514 | s->_raw_size += GLINK_CALL_STUB_SIZE; | |
5515 | /* We need bigger stubs past index 32767. */ | |
5516 | if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
5517 | s->_raw_size += 4; | |
5518 | s->_raw_size += 2*4; | |
5519 | ||
5520 | /* We also need to make an entry in the .rela.plt section. */ | |
4ce794b7 | 5521 | s = htab->relplt; |
411e1bfb AM |
5522 | s->_raw_size += sizeof (Elf64_External_Rela); |
5523 | doneone = TRUE; | |
5524 | } | |
5525 | else | |
5526 | pent->plt.offset = (bfd_vma) -1; | |
5527 | if (!doneone) | |
65f38f15 | 5528 | { |
411e1bfb | 5529 | h->plt.plist = NULL; |
65f38f15 AM |
5530 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5531 | } | |
5532 | } | |
5533 | else | |
5534 | { | |
411e1bfb | 5535 | h->plt.plist = NULL; |
65f38f15 AM |
5536 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5537 | } | |
5538 | ||
951fd09b AM |
5539 | eh = (struct ppc_link_hash_entry *) h; |
5540 | /* Run through the TLS GD got entries first if we're changing them | |
5541 | to TPREL. */ | |
e7b938ca | 5542 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
5543 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5544 | if (gent->got.refcount > 0 | |
5545 | && (gent->tls_type & TLS_GD) != 0) | |
5546 | { | |
5547 | /* This was a GD entry that has been converted to TPREL. If | |
5548 | there happens to be a TPREL entry we can use that one. */ | |
5549 | struct got_entry *ent; | |
5550 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
5551 | if (ent->got.refcount > 0 | |
5552 | && (ent->tls_type & TLS_TPREL) != 0 | |
e717da7e AM |
5553 | && ent->addend == gent->addend |
5554 | && ent->owner == gent->owner) | |
951fd09b AM |
5555 | { |
5556 | gent->got.refcount = 0; | |
5557 | break; | |
5558 | } | |
5559 | ||
5560 | /* If not, then we'll be using our own TPREL entry. */ | |
5561 | if (gent->got.refcount != 0) | |
5562 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
5563 | } | |
5564 | ||
411e1bfb AM |
5565 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5566 | if (gent->got.refcount > 0) | |
5567 | { | |
951fd09b AM |
5568 | bfd_boolean dyn; |
5569 | ||
411e1bfb | 5570 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
5571 | Undefined weak syms won't yet be marked as dynamic, |
5572 | nor will all TLS symbols. */ | |
411e1bfb AM |
5573 | if (h->dynindx == -1 |
5574 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5575 | { | |
5576 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
5577 | return FALSE; | |
5578 | } | |
65f38f15 | 5579 | |
d881513a AM |
5580 | if ((gent->tls_type & TLS_LD) != 0 |
5581 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5582 | { |
e717da7e | 5583 | gent->got.offset = ppc64_tlsld_got (gent->owner)->offset; |
951fd09b | 5584 | continue; |
411e1bfb | 5585 | } |
951fd09b | 5586 | |
e717da7e | 5587 | s = ppc64_elf_tdata (gent->owner)->got; |
951fd09b | 5588 | gent->got.offset = s->_raw_size; |
d881513a AM |
5589 | s->_raw_size |
5590 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; | |
951fd09b | 5591 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
5592 | if ((info->shared |
5593 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
5594 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5595 | || h->root.type != bfd_link_hash_undefweak)) | |
e717da7e | 5596 | ppc64_elf_tdata (gent->owner)->relgot->_raw_size |
e7b938ca | 5597 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
5598 | ? 2 * sizeof (Elf64_External_Rela) |
5599 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
5600 | } |
5601 | else | |
5602 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 5603 | |
65f38f15 | 5604 | if (eh->dyn_relocs == NULL) |
b34976b6 | 5605 | return TRUE; |
65f38f15 AM |
5606 | |
5607 | /* In the shared -Bsymbolic case, discard space allocated for | |
5608 | dynamic pc-relative relocs against symbols which turn out to be | |
5609 | defined in regular objects. For the normal shared case, discard | |
5610 | space for relocs that have become local due to symbol visibility | |
5611 | changes. */ | |
5612 | ||
5613 | if (info->shared) | |
5614 | { | |
9c7a29a3 AM |
5615 | /* Relocs that use pc_count are those that appear on a call insn, |
5616 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
5617 | generated via assembly. We want calls to protected symbols to | |
5618 | resolve directly to the function rather than going via the plt. | |
5619 | If people want function pointer comparisons to work as expected | |
5620 | then they should avoid writing weird assembly. */ | |
09695f56 | 5621 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
5622 | { |
5623 | struct ppc_dyn_relocs **pp; | |
5624 | ||
5625 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 5626 | { |
65f38f15 AM |
5627 | p->count -= p->pc_count; |
5628 | p->pc_count = 0; | |
5629 | if (p->count == 0) | |
5630 | *pp = p->next; | |
5631 | else | |
5632 | pp = &p->next; | |
5bd4f169 | 5633 | } |
65f38f15 | 5634 | } |
4e795f50 AM |
5635 | |
5636 | /* Also discard relocs on undefined weak syms with non-default | |
5637 | visibility. */ | |
5638 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5639 | && h->root.type == bfd_link_hash_undefweak) | |
5640 | eh->dyn_relocs = NULL; | |
65f38f15 | 5641 | } |
f4656909 | 5642 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
5643 | { |
5644 | /* For the non-shared case, discard space for relocs against | |
5645 | symbols which turn out to need copy relocs or are not | |
5646 | dynamic. */ | |
5647 | ||
5648 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
5649 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
5650 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
65f38f15 AM |
5651 | { |
5652 | /* Make sure this symbol is output as a dynamic symbol. | |
5653 | Undefined weak syms won't yet be marked as dynamic. */ | |
5654 | if (h->dynindx == -1 | |
5655 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5656 | { | |
ec338859 | 5657 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) |
b34976b6 | 5658 | return FALSE; |
65f38f15 AM |
5659 | } |
5660 | ||
5661 | /* If that succeeded, we know we'll be keeping all the | |
5662 | relocs. */ | |
5663 | if (h->dynindx != -1) | |
5664 | goto keep; | |
5665 | } | |
5666 | ||
5667 | eh->dyn_relocs = NULL; | |
5668 | ||
ec338859 | 5669 | keep: ; |
65f38f15 AM |
5670 | } |
5671 | ||
5672 | /* Finally, allocate space. */ | |
5673 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5674 | { | |
5675 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5676 | sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
5677 | } | |
5678 | ||
b34976b6 | 5679 | return TRUE; |
65f38f15 AM |
5680 | } |
5681 | ||
5682 | /* Find any dynamic relocs that apply to read-only sections. */ | |
5683 | ||
b34976b6 | 5684 | static bfd_boolean |
4ce794b7 | 5685 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
65f38f15 AM |
5686 | { |
5687 | struct ppc_link_hash_entry *eh; | |
5688 | struct ppc_dyn_relocs *p; | |
5689 | ||
e92d460e AM |
5690 | if (h->root.type == bfd_link_hash_warning) |
5691 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5692 | ||
65f38f15 AM |
5693 | eh = (struct ppc_link_hash_entry *) h; |
5694 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5695 | { | |
5696 | asection *s = p->sec->output_section; | |
5697 | ||
5698 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5699 | { | |
4ce794b7 | 5700 | struct bfd_link_info *info = inf; |
65f38f15 AM |
5701 | |
5702 | info->flags |= DF_TEXTREL; | |
5703 | ||
5704 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 5705 | return FALSE; |
65f38f15 AM |
5706 | } |
5707 | } | |
b34976b6 | 5708 | return TRUE; |
65f38f15 AM |
5709 | } |
5710 | ||
5711 | /* Set the sizes of the dynamic sections. */ | |
5712 | ||
b34976b6 | 5713 | static bfd_boolean |
4ce794b7 AM |
5714 | ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
5715 | struct bfd_link_info *info) | |
65f38f15 AM |
5716 | { |
5717 | struct ppc_link_hash_table *htab; | |
5718 | bfd *dynobj; | |
5719 | asection *s; | |
b34976b6 | 5720 | bfd_boolean relocs; |
65f38f15 AM |
5721 | bfd *ibfd; |
5722 | ||
5723 | htab = ppc_hash_table (info); | |
5724 | dynobj = htab->elf.dynobj; | |
5725 | if (dynobj == NULL) | |
5726 | abort (); | |
5727 | ||
5728 | if (htab->elf.dynamic_sections_created) | |
5729 | { | |
5730 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 5731 | if (info->executable) |
65f38f15 AM |
5732 | { |
5733 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5734 | if (s == NULL) | |
5735 | abort (); | |
5736 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5737 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5738 | } | |
5739 | } | |
5740 | ||
5741 | /* Set up .got offsets for local syms, and space for local dynamic | |
5742 | relocs. */ | |
5743 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5744 | { | |
411e1bfb AM |
5745 | struct got_entry **lgot_ents; |
5746 | struct got_entry **end_lgot_ents; | |
e7b938ca | 5747 | char *lgot_masks; |
65f38f15 AM |
5748 | bfd_size_type locsymcount; |
5749 | Elf_Internal_Shdr *symtab_hdr; | |
5750 | asection *srel; | |
5751 | ||
5752 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5753 | continue; | |
5754 | ||
e717da7e AM |
5755 | if (ppc64_tlsld_got (ibfd)->refcount > 0) |
5756 | { | |
5757 | s = ppc64_elf_tdata (ibfd)->got; | |
5758 | ppc64_tlsld_got (ibfd)->offset = s->_raw_size; | |
5759 | s->_raw_size += 16; | |
5760 | if (info->shared) | |
5761 | { | |
5762 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
5763 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5764 | } | |
5765 | } | |
5766 | else | |
5767 | ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1; | |
5768 | ||
65f38f15 AM |
5769 | for (s = ibfd->sections; s != NULL; s = s->next) |
5770 | { | |
ec338859 | 5771 | struct ppc_dyn_relocs *p; |
65f38f15 | 5772 | |
ec338859 AM |
5773 | for (p = *((struct ppc_dyn_relocs **) |
5774 | &elf_section_data (s)->local_dynrel); | |
5775 | p != NULL; | |
5776 | p = p->next) | |
65f38f15 | 5777 | { |
ec338859 AM |
5778 | if (!bfd_is_abs_section (p->sec) |
5779 | && bfd_is_abs_section (p->sec->output_section)) | |
5780 | { | |
5781 | /* Input section has been discarded, either because | |
5782 | it is a copy of a linkonce section or due to | |
5783 | linker script /DISCARD/, so we'll be discarding | |
5784 | the relocs too. */ | |
5785 | } | |
248866a8 | 5786 | else if (p->count != 0) |
ec338859 AM |
5787 | { |
5788 | srel = elf_section_data (p->sec)->sreloc; | |
5789 | srel->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
248866a8 AM |
5790 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
5791 | info->flags |= DF_TEXTREL; | |
ec338859 | 5792 | } |
65f38f15 AM |
5793 | } |
5794 | } | |
5795 | ||
411e1bfb AM |
5796 | lgot_ents = elf_local_got_ents (ibfd); |
5797 | if (!lgot_ents) | |
65f38f15 AM |
5798 | continue; |
5799 | ||
5800 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5801 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 5802 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 5803 | lgot_masks = (char *) end_lgot_ents; |
e717da7e AM |
5804 | s = ppc64_elf_tdata (ibfd)->got; |
5805 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
e7b938ca | 5806 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 5807 | { |
411e1bfb AM |
5808 | struct got_entry *ent; |
5809 | ||
5810 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
5811 | if (ent->got.refcount > 0) | |
5812 | { | |
e7b938ca | 5813 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb | 5814 | { |
e717da7e | 5815 | if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1) |
411e1bfb | 5816 | { |
e717da7e | 5817 | ppc64_tlsld_got (ibfd)->offset = s->_raw_size; |
411e1bfb AM |
5818 | s->_raw_size += 16; |
5819 | if (info->shared) | |
5820 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5821 | } | |
e717da7e | 5822 | ent->got.offset = ppc64_tlsld_got (ibfd)->offset; |
411e1bfb AM |
5823 | } |
5824 | else | |
5825 | { | |
5826 | ent->got.offset = s->_raw_size; | |
e7b938ca | 5827 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb AM |
5828 | { |
5829 | s->_raw_size += 16; | |
5830 | if (info->shared) | |
5831 | srel->_raw_size += 2 * sizeof (Elf64_External_Rela); | |
5832 | } | |
5833 | else | |
5834 | { | |
5835 | s->_raw_size += 8; | |
5836 | if (info->shared) | |
5837 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5838 | } | |
5839 | } | |
5840 | } | |
5841 | else | |
5842 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
5843 | } |
5844 | } | |
5845 | ||
5846 | /* Allocate global sym .plt and .got entries, and space for global | |
5847 | sym dynamic relocs. */ | |
4ce794b7 | 5848 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
65f38f15 AM |
5849 | |
5850 | /* We now have determined the sizes of the various dynamic sections. | |
5851 | Allocate memory for them. */ | |
b34976b6 | 5852 | relocs = FALSE; |
65f38f15 AM |
5853 | for (s = dynobj->sections; s != NULL; s = s->next) |
5854 | { | |
5855 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5856 | continue; | |
5857 | ||
411e1bfb AM |
5858 | /* Reset _cooked_size since prelim layout will set it wrongly, |
5859 | and a non-zero _cooked_size sticks. */ | |
5860 | s->_cooked_size = 0; | |
5861 | ||
4ce794b7 | 5862 | if (s == htab->brlt || s == htab->relbrlt) |
721956f4 AM |
5863 | /* These haven't been allocated yet; don't strip. */ |
5864 | continue; | |
e717da7e AM |
5865 | else if (s == htab->got |
5866 | || s == htab->plt | |
4ce794b7 | 5867 | || s == htab->glink) |
65f38f15 AM |
5868 | { |
5869 | /* Strip this section if we don't need it; see the | |
5870 | comment below. */ | |
5bd4f169 | 5871 | } |
65f38f15 | 5872 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 AM |
5873 | { |
5874 | if (s->_raw_size == 0) | |
5875 | { | |
5876 | /* If we don't need this section, strip it from the | |
5877 | output file. This is mostly to handle .rela.bss and | |
5878 | .rela.plt. We must create both sections in | |
5879 | create_dynamic_sections, because they must be created | |
5880 | before the linker maps input sections to output | |
5881 | sections. The linker does that before | |
5882 | adjust_dynamic_symbol is called, and it is that | |
5883 | function which decides whether anything needs to go | |
5884 | into these sections. */ | |
5bd4f169 AM |
5885 | } |
5886 | else | |
5887 | { | |
4ce794b7 | 5888 | if (s != htab->relplt) |
b34976b6 | 5889 | relocs = TRUE; |
5bd4f169 AM |
5890 | |
5891 | /* We use the reloc_count field as a counter if we need | |
5892 | to copy relocs into the output file. */ | |
5893 | s->reloc_count = 0; | |
5894 | } | |
5895 | } | |
65f38f15 | 5896 | else |
5bd4f169 AM |
5897 | { |
5898 | /* It's not one of our sections, so don't allocate space. */ | |
5899 | continue; | |
5900 | } | |
5901 | ||
65f38f15 | 5902 | if (s->_raw_size == 0) |
5bd4f169 AM |
5903 | { |
5904 | _bfd_strip_section_from_output (info, s); | |
5905 | continue; | |
5906 | } | |
5907 | ||
5f333394 AM |
5908 | /* .plt is in the bss section. We don't initialise it. */ |
5909 | if ((s->flags & SEC_LOAD) == 0) | |
5910 | continue; | |
5911 | ||
65f38f15 AM |
5912 | /* Allocate memory for the section contents. We use bfd_zalloc |
5913 | here in case unused entries are not reclaimed before the | |
5914 | section's contents are written out. This should not happen, | |
411e1bfb AM |
5915 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
5916 | sections instead of garbage. | |
5917 | We also rely on the section contents being zero when writing | |
5918 | the GOT. */ | |
4ce794b7 | 5919 | s->contents = bfd_zalloc (dynobj, s->_raw_size); |
65f38f15 | 5920 | if (s->contents == NULL) |
b34976b6 | 5921 | return FALSE; |
5bd4f169 AM |
5922 | } |
5923 | ||
e717da7e AM |
5924 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5925 | { | |
5926 | s = ppc64_elf_tdata (ibfd)->got; | |
5927 | if (s != NULL && s != htab->got) | |
5928 | { | |
5929 | s->_cooked_size = 0; | |
5930 | if (s->_raw_size == 0) | |
5931 | _bfd_strip_section_from_output (info, s); | |
5932 | else | |
5933 | { | |
5934 | s->contents = bfd_zalloc (ibfd, s->_raw_size); | |
5935 | if (s->contents == NULL) | |
5936 | return FALSE; | |
5937 | } | |
5938 | } | |
5939 | s = ppc64_elf_tdata (ibfd)->relgot; | |
5940 | if (s != NULL) | |
5941 | { | |
5942 | s->_cooked_size = 0; | |
5943 | if (s->_raw_size == 0) | |
5944 | _bfd_strip_section_from_output (info, s); | |
5945 | else | |
5946 | { | |
5947 | s->contents = bfd_zalloc (ibfd, s->_raw_size); | |
5948 | if (s->contents == NULL) | |
5949 | return FALSE; | |
5950 | relocs = TRUE; | |
5951 | s->reloc_count = 0; | |
5952 | } | |
5953 | } | |
5954 | } | |
5955 | ||
e86ce104 | 5956 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
5957 | { |
5958 | /* Add some entries to the .dynamic section. We fill in the | |
5959 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
5960 | must add the entries now so that we get the correct size for | |
5961 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5962 | dynamic linker and used by the debugger. */ | |
dc810e39 | 5963 | #define add_dynamic_entry(TAG, VAL) \ |
4ce794b7 | 5964 | bfd_elf64_add_dynamic_entry (info, (TAG), (VAL)) |
dc810e39 | 5965 | |
36af4a4e | 5966 | if (info->executable) |
5bd4f169 | 5967 | { |
dc810e39 | 5968 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 5969 | return FALSE; |
5bd4f169 AM |
5970 | } |
5971 | ||
4ce794b7 | 5972 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5bd4f169 | 5973 | { |
dc810e39 AM |
5974 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
5975 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5976 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
5977 | || !add_dynamic_entry (DT_JMPREL, 0) |
5978 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 5979 | return FALSE; |
5bd4f169 AM |
5980 | } |
5981 | ||
19397422 AM |
5982 | if (NO_OPD_RELOCS) |
5983 | { | |
5984 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
5985 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 5986 | return FALSE; |
19397422 AM |
5987 | } |
5988 | ||
5bd4f169 AM |
5989 | if (relocs) |
5990 | { | |
dc810e39 AM |
5991 | if (!add_dynamic_entry (DT_RELA, 0) |
5992 | || !add_dynamic_entry (DT_RELASZ, 0) | |
5993 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 5994 | return FALSE; |
5bd4f169 | 5995 | |
65f38f15 AM |
5996 | /* If any dynamic relocs apply to a read-only section, |
5997 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 5998 | if ((info->flags & DF_TEXTREL) == 0) |
4ce794b7 | 5999 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
5bd4f169 | 6000 | |
65f38f15 | 6001 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 6002 | { |
65f38f15 | 6003 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 6004 | return FALSE; |
5bd4f169 | 6005 | } |
5bd4f169 | 6006 | } |
5bd4f169 | 6007 | } |
65f38f15 | 6008 | #undef add_dynamic_entry |
5bd4f169 | 6009 | |
b34976b6 | 6010 | return TRUE; |
5bd4f169 AM |
6011 | } |
6012 | ||
721956f4 | 6013 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 6014 | |
4ce794b7 AM |
6015 | static inline enum ppc_stub_type |
6016 | ppc_type_of_stub (asection *input_sec, | |
6017 | const Elf_Internal_Rela *rel, | |
6018 | struct ppc_link_hash_entry **hash, | |
6019 | bfd_vma destination) | |
5bd4f169 | 6020 | { |
721956f4 AM |
6021 | struct ppc_link_hash_entry *h = *hash; |
6022 | bfd_vma location; | |
6023 | bfd_vma branch_offset; | |
6024 | bfd_vma max_branch_offset; | |
4ce794b7 | 6025 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 | 6026 | |
721956f4 AM |
6027 | if (h != NULL) |
6028 | { | |
6029 | if (h->oh != NULL | |
721956f4 | 6030 | && h->oh->dynindx != -1) |
5bd4f169 | 6031 | { |
411e1bfb AM |
6032 | struct plt_entry *ent; |
6033 | for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next) | |
6034 | if (ent->addend == rel->r_addend | |
6035 | && ent->plt.offset != (bfd_vma) -1) | |
6036 | { | |
6037 | *hash = (struct ppc_link_hash_entry *) h->oh; | |
6038 | return ppc_stub_plt_call; | |
6039 | } | |
5bd4f169 AM |
6040 | } |
6041 | ||
ad8e1ba5 AM |
6042 | if (h->elf.root.type != bfd_link_hash_defined |
6043 | && h->elf.root.type != bfd_link_hash_defweak) | |
721956f4 | 6044 | return ppc_stub_none; |
5d1634d7 | 6045 | } |
5d1634d7 | 6046 | |
721956f4 AM |
6047 | /* Determine where the call point is. */ |
6048 | location = (input_sec->output_offset | |
6049 | + input_sec->output_section->vma | |
6050 | + rel->r_offset); | |
5d1634d7 | 6051 | |
721956f4 AM |
6052 | branch_offset = destination - location; |
6053 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 6054 | |
721956f4 AM |
6055 | /* Determine if a long branch stub is needed. */ |
6056 | max_branch_offset = 1 << 25; | |
4ce794b7 | 6057 | if (r_type != R_PPC64_REL24) |
721956f4 | 6058 | max_branch_offset = 1 << 15; |
5d1634d7 | 6059 | |
721956f4 AM |
6060 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
6061 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
6062 | is needed later. */ | |
6063 | return ppc_stub_long_branch; | |
5d1634d7 | 6064 | |
721956f4 | 6065 | return ppc_stub_none; |
5d1634d7 AM |
6066 | } |
6067 | ||
6068 | /* Build a .plt call stub. */ | |
6069 | ||
4ce794b7 AM |
6070 | static inline bfd_byte * |
6071 | build_plt_stub (bfd *obfd, bfd_byte *p, int offset) | |
5d1634d7 AM |
6072 | { |
6073 | #define PPC_LO(v) ((v) & 0xffff) | |
6074 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
6075 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
6076 | ||
5d1634d7 | 6077 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 6078 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
6079 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
6080 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6081 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6082 | offset += 8; |
6083 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
6084 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6085 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6086 | offset += 8; |
6087 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
6088 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
6089 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
6090 | return p; | |
6091 | } | |
6092 | ||
b34976b6 | 6093 | static bfd_boolean |
4ce794b7 | 6094 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
5d1634d7 | 6095 | { |
721956f4 AM |
6096 | struct ppc_stub_hash_entry *stub_entry; |
6097 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
6098 | struct bfd_link_info *info; |
6099 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
6100 | bfd_byte *loc; |
6101 | bfd_byte *p; | |
6102 | unsigned int indx; | |
411e1bfb | 6103 | struct plt_entry *ent; |
721956f4 AM |
6104 | bfd_vma off; |
6105 | int size; | |
5d1634d7 | 6106 | |
721956f4 AM |
6107 | /* Massage our args to the form they really have. */ |
6108 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 6109 | info = in_arg; |
5d1634d7 | 6110 | |
5d1634d7 AM |
6111 | htab = ppc_hash_table (info); |
6112 | ||
721956f4 | 6113 | /* Make a note of the offset within the stubs for this entry. */ |
97b639ba AM |
6114 | stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size; |
6115 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; | |
721956f4 | 6116 | |
4ce794b7 | 6117 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
721956f4 | 6118 | switch (stub_entry->stub_type) |
5d1634d7 | 6119 | { |
721956f4 | 6120 | case ppc_stub_long_branch: |
ad8e1ba5 | 6121 | case ppc_stub_long_branch_r2off: |
721956f4 AM |
6122 | /* Branches are relative. This is where we are going to. */ |
6123 | off = (stub_entry->target_value | |
6124 | + stub_entry->target_section->output_offset | |
6125 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 6126 | |
721956f4 AM |
6127 | /* And this is where we are coming from. */ |
6128 | off -= (stub_entry->stub_offset | |
97b639ba AM |
6129 | + stub_entry->stub_sec->output_offset |
6130 | + stub_entry->stub_sec->output_section->vma); | |
e86ce104 | 6131 | |
ad8e1ba5 AM |
6132 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
6133 | size = 4; | |
6134 | else | |
6135 | { | |
6136 | bfd_vma r2off; | |
6137 | ||
6138 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6139 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 6140 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6141 | loc += 4; |
97b639ba | 6142 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6143 | loc += 4; |
97b639ba | 6144 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6145 | loc += 4; |
6146 | off -= 12; | |
6147 | size = 16; | |
6148 | } | |
97b639ba | 6149 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 AM |
6150 | |
6151 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); | |
721956f4 | 6152 | break; |
e86ce104 | 6153 | |
721956f4 | 6154 | case ppc_stub_plt_branch: |
ad8e1ba5 | 6155 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
6156 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
6157 | stub_entry->root.string + 9, | |
b34976b6 | 6158 | FALSE, FALSE); |
721956f4 AM |
6159 | if (br_entry == NULL) |
6160 | { | |
6161 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
6162 | stub_entry->root.string + 9); | |
b34976b6 AM |
6163 | htab->stub_error = TRUE; |
6164 | return FALSE; | |
721956f4 AM |
6165 | } |
6166 | ||
6167 | off = (stub_entry->target_value | |
6168 | + stub_entry->target_section->output_offset | |
6169 | + stub_entry->target_section->output_section->vma); | |
6170 | ||
4ce794b7 AM |
6171 | bfd_put_64 (htab->brlt->owner, off, |
6172 | htab->brlt->contents + br_entry->offset); | |
721956f4 AM |
6173 | |
6174 | if (info->shared) | |
6175 | { | |
6176 | /* Create a reloc for the branch lookup table entry. */ | |
6177 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 6178 | bfd_byte *rl; |
5d1634d7 | 6179 | |
721956f4 | 6180 | rela.r_offset = (br_entry->offset |
4ce794b7 AM |
6181 | + htab->brlt->output_offset |
6182 | + htab->brlt->output_section->vma); | |
721956f4 AM |
6183 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
6184 | rela.r_addend = off; | |
6185 | ||
4ce794b7 AM |
6186 | rl = htab->relbrlt->contents; |
6187 | rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
6188 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
721956f4 AM |
6189 | } |
6190 | ||
6191 | off = (br_entry->offset | |
4ce794b7 AM |
6192 | + htab->brlt->output_offset |
6193 | + htab->brlt->output_section->vma | |
6194 | - elf_gp (htab->brlt->output_section->owner) | |
ad8e1ba5 | 6195 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6196 | |
ad8e1ba5 | 6197 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
6198 | { |
6199 | (*_bfd_error_handler) | |
e86ce104 | 6200 | (_("linkage table error against `%s'"), |
721956f4 | 6201 | stub_entry->root.string); |
5d1634d7 | 6202 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
6203 | htab->stub_error = TRUE; |
6204 | return FALSE; | |
5d1634d7 | 6205 | } |
41bd81ab | 6206 | |
721956f4 | 6207 | indx = off; |
ad8e1ba5 AM |
6208 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
6209 | { | |
97b639ba | 6210 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6211 | loc += 4; |
97b639ba | 6212 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 AM |
6213 | size = 16; |
6214 | } | |
6215 | else | |
6216 | { | |
6217 | bfd_vma r2off; | |
6218 | ||
6219 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6220 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 6221 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6222 | loc += 4; |
97b639ba | 6223 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6224 | loc += 4; |
97b639ba | 6225 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 | 6226 | loc += 4; |
97b639ba | 6227 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6228 | loc += 4; |
97b639ba | 6229 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6230 | size = 28; |
6231 | } | |
6232 | loc += 4; | |
97b639ba | 6233 | bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc); |
ad8e1ba5 | 6234 | loc += 4; |
97b639ba | 6235 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
721956f4 | 6236 | break; |
5d1634d7 | 6237 | |
721956f4 | 6238 | case ppc_stub_plt_call: |
c862ae31 AM |
6239 | /* Do the best we can for shared libraries built without |
6240 | exporting ".foo" for each "foo". This can happen when symbol | |
6241 | versioning scripts strip all bar a subset of symbols. */ | |
6242 | if (stub_entry->h->oh->root.type != bfd_link_hash_defined | |
6243 | && stub_entry->h->oh->root.type != bfd_link_hash_defweak) | |
6244 | { | |
6245 | /* Point the symbol at the stub. There may be multiple stubs, | |
6246 | we don't really care; The main thing is to make this sym | |
8f3bab57 AM |
6247 | defined somewhere. Maybe defining the symbol in the stub |
6248 | section is a silly idea. If we didn't do this, htab->top_id | |
6249 | could disappear. */ | |
c862ae31 AM |
6250 | stub_entry->h->oh->root.type = bfd_link_hash_defined; |
6251 | stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec; | |
6252 | stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset; | |
6253 | } | |
6254 | ||
721956f4 | 6255 | /* Now build the stub. */ |
411e1bfb AM |
6256 | off = (bfd_vma) -1; |
6257 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
6258 | if (ent->addend == stub_entry->addend) | |
6259 | { | |
6260 | off = ent->plt.offset; | |
6261 | break; | |
6262 | } | |
721956f4 AM |
6263 | if (off >= (bfd_vma) -2) |
6264 | abort (); | |
6265 | ||
6266 | off &= ~ (bfd_vma) 1; | |
4ce794b7 AM |
6267 | off += (htab->plt->output_offset |
6268 | + htab->plt->output_section->vma | |
6269 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6270 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6271 | |
ad8e1ba5 | 6272 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
6273 | { |
6274 | (*_bfd_error_handler) | |
6275 | (_("linkage table error against `%s'"), | |
6276 | stub_entry->h->elf.root.root.string); | |
6277 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
6278 | htab->stub_error = TRUE; |
6279 | return FALSE; | |
721956f4 AM |
6280 | } |
6281 | ||
97b639ba | 6282 | p = build_plt_stub (htab->stub_bfd, loc, off); |
721956f4 AM |
6283 | size = p - loc; |
6284 | break; | |
6285 | ||
6286 | default: | |
6287 | BFD_FAIL (); | |
b34976b6 | 6288 | return FALSE; |
721956f4 AM |
6289 | } |
6290 | ||
97b639ba AM |
6291 | stub_entry->stub_sec->_cooked_size += size; |
6292 | ||
6293 | if (htab->emit_stub_syms | |
6294 | && !(stub_entry->stub_type == ppc_stub_plt_call | |
6295 | && stub_entry->h->oh->root.type == bfd_link_hash_defined | |
6296 | && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec | |
6297 | && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset)) | |
6298 | { | |
6299 | struct elf_link_hash_entry *h; | |
6300 | h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string, | |
6301 | TRUE, FALSE, FALSE); | |
6302 | if (h == NULL) | |
6303 | return FALSE; | |
6304 | if (h->root.type == bfd_link_hash_new) | |
6305 | { | |
6306 | h->root.type = bfd_link_hash_defined; | |
6307 | h->root.u.def.section = stub_entry->stub_sec; | |
6308 | h->root.u.def.value = stub_entry->stub_offset; | |
6309 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
6310 | | ELF_LINK_HASH_DEF_REGULAR | |
6311 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
6312 | | ELF_LINK_FORCED_LOCAL); | |
6313 | } | |
6314 | } | |
6315 | ||
b34976b6 | 6316 | return TRUE; |
721956f4 AM |
6317 | } |
6318 | ||
6319 | /* As above, but don't actually build the stub. Just bump offset so | |
6320 | we know stub section sizes, and select plt_branch stubs where | |
6321 | long_branch stubs won't do. */ | |
6322 | ||
b34976b6 | 6323 | static bfd_boolean |
4ce794b7 | 6324 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
721956f4 AM |
6325 | { |
6326 | struct ppc_stub_hash_entry *stub_entry; | |
6327 | struct ppc_link_hash_table *htab; | |
6328 | bfd_vma off; | |
6329 | int size; | |
6330 | ||
6331 | /* Massage our args to the form they really have. */ | |
6332 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 6333 | htab = in_arg; |
721956f4 AM |
6334 | |
6335 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
6336 | { | |
411e1bfb | 6337 | struct plt_entry *ent; |
58ac9f71 | 6338 | off = (bfd_vma) -1; |
411e1bfb AM |
6339 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
6340 | if (ent->addend == stub_entry->addend) | |
6341 | { | |
6342 | off = ent->plt.offset & ~(bfd_vma) 1; | |
6343 | break; | |
6344 | } | |
58ac9f71 | 6345 | if (off >= (bfd_vma) -2) |
411e1bfb | 6346 | abort (); |
4ce794b7 AM |
6347 | off += (htab->plt->output_offset |
6348 | + htab->plt->output_section->vma | |
6349 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6350 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6351 | |
ad8e1ba5 | 6352 | size = PLT_CALL_STUB_SIZE; |
4ce794b7 | 6353 | if (PPC_HA (off + 16) != PPC_HA (off)) |
721956f4 AM |
6354 | size += 4; |
6355 | } | |
6356 | else | |
6357 | { | |
ad8e1ba5 AM |
6358 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
6359 | variants. */ | |
721956f4 AM |
6360 | off = (stub_entry->target_value |
6361 | + stub_entry->target_section->output_offset | |
6362 | + stub_entry->target_section->output_section->vma); | |
6363 | off -= (stub_entry->stub_sec->_raw_size | |
6364 | + stub_entry->stub_sec->output_offset | |
6365 | + stub_entry->stub_sec->output_section->vma); | |
6366 | ||
ad8e1ba5 AM |
6367 | /* Reset the stub type from the plt variant in case we now |
6368 | can reach with a shorter stub. */ | |
6369 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
6370 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
6371 | ||
6372 | size = 4; | |
6373 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
6374 | { | |
6375 | off -= 12; | |
6376 | size = 16; | |
6377 | } | |
6378 | ||
6379 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
6380 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
6381 | { | |
6382 | struct ppc_branch_hash_entry *br_entry; | |
6383 | ||
6384 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6385 | stub_entry->root.string + 9, | |
b34976b6 | 6386 | TRUE, FALSE); |
721956f4 AM |
6387 | if (br_entry == NULL) |
6388 | { | |
6389 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
6390 | stub_entry->root.string + 9); | |
b34976b6 AM |
6391 | htab->stub_error = TRUE; |
6392 | return FALSE; | |
721956f4 AM |
6393 | } |
6394 | ||
6395 | if (br_entry->iter != htab->stub_iteration) | |
6396 | { | |
6397 | br_entry->iter = htab->stub_iteration; | |
4ce794b7 AM |
6398 | br_entry->offset = htab->brlt->_raw_size; |
6399 | htab->brlt->_raw_size += 8; | |
721956f4 | 6400 | } |
ad8e1ba5 AM |
6401 | |
6402 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 6403 | size = 16; |
ad8e1ba5 AM |
6404 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
6405 | size = 28; | |
721956f4 AM |
6406 | } |
6407 | } | |
6408 | ||
6409 | stub_entry->stub_sec->_raw_size += size; | |
b34976b6 | 6410 | return TRUE; |
721956f4 AM |
6411 | } |
6412 | ||
6413 | /* Set up various things so that we can make a list of input sections | |
6414 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 6415 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
6416 | |
6417 | int | |
4ce794b7 | 6418 | ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
721956f4 AM |
6419 | { |
6420 | bfd *input_bfd; | |
734b6cf9 | 6421 | int top_id, top_index, id; |
721956f4 | 6422 | asection *section; |
734b6cf9 | 6423 | asection **input_list; |
721956f4 AM |
6424 | bfd_size_type amt; |
6425 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6426 | ||
4ce794b7 | 6427 | if (htab->brlt == NULL) |
721956f4 AM |
6428 | return 0; |
6429 | ||
1e2f5b6e | 6430 | /* Find the top input section id. */ |
3d6f9012 | 6431 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
6432 | input_bfd != NULL; |
6433 | input_bfd = input_bfd->link_next) | |
6434 | { | |
721956f4 AM |
6435 | for (section = input_bfd->sections; |
6436 | section != NULL; | |
6437 | section = section->next) | |
6438 | { | |
6439 | if (top_id < section->id) | |
6440 | top_id = section->id; | |
6441 | } | |
6442 | } | |
721956f4 | 6443 | |
8f3bab57 | 6444 | htab->top_id = top_id; |
721956f4 | 6445 | amt = sizeof (struct map_stub) * (top_id + 1); |
4ce794b7 | 6446 | htab->stub_group = bfd_zmalloc (amt); |
721956f4 AM |
6447 | if (htab->stub_group == NULL) |
6448 | return -1; | |
6449 | ||
3d6f9012 AM |
6450 | /* Set toc_off for com, und, abs and ind sections. */ |
6451 | for (id = 0; id < 3; id++) | |
6452 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 6453 | |
3d6f9012 | 6454 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
6455 | |
6456 | /* We can't use output_bfd->section_count here to find the top output | |
6457 | section index as some sections may have been removed, and | |
6458 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
6459 | for (section = output_bfd->sections, top_index = 0; | |
6460 | section != NULL; | |
6461 | section = section->next) | |
6462 | { | |
6463 | if (top_index < section->index) | |
6464 | top_index = section->index; | |
6465 | } | |
6466 | ||
6467 | htab->top_index = top_index; | |
6468 | amt = sizeof (asection *) * (top_index + 1); | |
4ce794b7 | 6469 | input_list = bfd_zmalloc (amt); |
734b6cf9 AM |
6470 | htab->input_list = input_list; |
6471 | if (input_list == NULL) | |
6472 | return -1; | |
6473 | ||
721956f4 AM |
6474 | return 1; |
6475 | } | |
6476 | ||
e717da7e AM |
6477 | /* The linker repeatedly calls this function for each TOC input section |
6478 | and linker generated GOT section. Group input bfds such that the toc | |
6479 | within a group is less than 64k in size. Will break with cute linker | |
6480 | scripts that play games with dot in the output toc section. */ | |
ad8e1ba5 AM |
6481 | |
6482 | void | |
4ce794b7 | 6483 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
ad8e1ba5 AM |
6484 | { |
6485 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6486 | ||
6487 | if (!htab->no_multi_toc) | |
6488 | { | |
6489 | bfd_vma addr = isec->output_offset + isec->output_section->vma; | |
6490 | bfd_vma off = addr - htab->toc_curr; | |
6491 | if (off + isec->_raw_size > 0x10000) | |
6492 | { | |
6493 | htab->toc_curr = addr; | |
6494 | htab->multi_toc_needed = 1; | |
6495 | } | |
6496 | elf_gp (isec->owner) = (htab->toc_curr | |
6497 | - elf_gp (isec->output_section->owner) | |
6498 | + TOC_BASE_OFF); | |
6499 | } | |
6500 | } | |
6501 | ||
6502 | /* Called after the last call to the above function. */ | |
6503 | ||
6504 | void | |
4ce794b7 AM |
6505 | ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED, |
6506 | struct bfd_link_info *info) | |
ad8e1ba5 AM |
6507 | { |
6508 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 AM |
6509 | |
6510 | /* toc_curr tracks the TOC offset used for code sections below in | |
6511 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 6512 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
6513 | } |
6514 | ||
9b5ecbd0 AM |
6515 | /* No toc references were found in ISEC. If the code in ISEC makes no |
6516 | calls, then there's no need to use toc adjusting stubs when branching | |
6517 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
6518 | load r2. */ | |
6519 | ||
6520 | static int | |
4ce794b7 | 6521 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
9b5ecbd0 AM |
6522 | { |
6523 | bfd_byte *contents; | |
6524 | bfd_size_type i; | |
6525 | int ret; | |
6526 | int branch_ok; | |
6527 | ||
772119ce AM |
6528 | /* We know none of our code bearing sections will need toc stubs. */ |
6529 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
6530 | return 0; | |
6531 | ||
9b5ecbd0 AM |
6532 | /* Hack for linux kernel. .fixup contains branches, but only back to |
6533 | the function that hit an exception. */ | |
6534 | branch_ok = strcmp (isec->name, ".fixup") == 0; | |
6535 | ||
6536 | contents = elf_section_data (isec)->this_hdr.contents; | |
6537 | if (contents == NULL) | |
6538 | { | |
6539 | contents = bfd_malloc (isec->_raw_size); | |
6540 | if (contents == NULL) | |
6541 | return -1; | |
6542 | if (! bfd_get_section_contents (isec->owner, isec, contents, | |
e717da7e | 6543 | 0, isec->_raw_size)) |
9b5ecbd0 AM |
6544 | { |
6545 | free (contents); | |
6546 | return -1; | |
6547 | } | |
6548 | if (info->keep_memory) | |
6549 | elf_section_data (isec)->this_hdr.contents = contents; | |
6550 | } | |
6551 | ||
6552 | /* Code scan, because we don't necessarily have relocs on calls to | |
6553 | static functions. */ | |
6554 | ret = 0; | |
6555 | for (i = 0; i < isec->_raw_size; i += 4) | |
6556 | { | |
6557 | unsigned long insn = bfd_get_32 (isec->owner, contents + i); | |
6558 | /* Is this a branch? */ | |
772119ce | 6559 | if ((insn & (0x3f << 26)) == (18 << 26) |
9b5ecbd0 AM |
6560 | /* If branch and link, it's a function call. */ |
6561 | && ((insn & 1) != 0 | |
6562 | /* Sibling calls use a plain branch. I don't know a way | |
6563 | of deciding whether a branch is really a sibling call. */ | |
6564 | || !branch_ok)) | |
6565 | { | |
6566 | ret = 1; | |
6567 | break; | |
6568 | } | |
6569 | } | |
6570 | ||
6571 | if (elf_section_data (isec)->this_hdr.contents != contents) | |
6572 | free (contents); | |
6573 | return ret; | |
6574 | } | |
6575 | ||
721956f4 AM |
6576 | /* The linker repeatedly calls this function for each input section, |
6577 | in the order that input sections are linked into output sections. | |
6578 | Build lists of input sections to determine groupings between which | |
6579 | we may insert linker stubs. */ | |
6580 | ||
9b5ecbd0 | 6581 | bfd_boolean |
4ce794b7 | 6582 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
721956f4 AM |
6583 | { |
6584 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9b5ecbd0 | 6585 | int ret; |
721956f4 | 6586 | |
734b6cf9 AM |
6587 | if ((isec->output_section->flags & SEC_CODE) != 0 |
6588 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 6589 | { |
734b6cf9 | 6590 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 6591 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 6592 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
6593 | /* This happens to make the list in reverse order, |
6594 | which is what we want. */ | |
734b6cf9 AM |
6595 | PREV_SEC (isec) = *list; |
6596 | *list = isec; | |
721956f4 | 6597 | } |
ad8e1ba5 AM |
6598 | |
6599 | /* If a code section has a function that uses the TOC then we need | |
6600 | to use the right TOC (obviously). Also, make sure that .opd gets | |
ee87f2da AM |
6601 | the correct TOC value for R_PPC64_TOC relocs that don't have or |
6602 | can't find their function symbol (shouldn't ever happen now). */ | |
ad8e1ba5 | 6603 | if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0) |
9b5ecbd0 AM |
6604 | { |
6605 | if (elf_gp (isec->owner) != 0) | |
6606 | htab->toc_curr = elf_gp (isec->owner); | |
6607 | } | |
6608 | else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0) | |
6609 | return FALSE; | |
6610 | else | |
6611 | isec->has_gp_reloc = ret; | |
ad8e1ba5 AM |
6612 | |
6613 | /* Functions that don't use the TOC can belong in any TOC group. | |
6614 | Use the last TOC base. This happens to make _init and _fini | |
6615 | pasting work. */ | |
6616 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 6617 | return TRUE; |
721956f4 AM |
6618 | } |
6619 | ||
6620 | /* See whether we can group stub sections together. Grouping stub | |
6621 | sections may result in fewer stubs. More importantly, we need to | |
6622 | put all .init* and .fini* stubs at the beginning of the .init or | |
6623 | .fini output sections respectively, because glibc splits the | |
6624 | _init and _fini functions into multiple parts. Putting a stub in | |
6625 | the middle of a function is not a good idea. */ | |
6626 | ||
6627 | static void | |
4ce794b7 AM |
6628 | group_sections (struct ppc_link_hash_table *htab, |
6629 | bfd_size_type stub_group_size, | |
6630 | bfd_boolean stubs_always_before_branch) | |
721956f4 | 6631 | { |
734b6cf9 AM |
6632 | asection **list = htab->input_list + htab->top_index; |
6633 | do | |
721956f4 | 6634 | { |
734b6cf9 AM |
6635 | asection *tail = *list; |
6636 | while (tail != NULL) | |
721956f4 | 6637 | { |
734b6cf9 AM |
6638 | asection *curr; |
6639 | asection *prev; | |
6640 | bfd_size_type total; | |
6641 | bfd_boolean big_sec; | |
6642 | bfd_vma curr_toc; | |
6643 | ||
6644 | curr = tail; | |
6645 | if (tail->_cooked_size) | |
6646 | total = tail->_cooked_size; | |
6647 | else | |
6648 | total = tail->_raw_size; | |
6649 | big_sec = total >= stub_group_size; | |
6650 | curr_toc = htab->stub_group[tail->id].toc_off; | |
6651 | ||
6652 | while ((prev = PREV_SEC (curr)) != NULL | |
6653 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
6654 | < stub_group_size) |
6655 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
6656 | curr = prev; |
6657 | ||
6658 | /* OK, the size from the start of CURR to the end is less | |
6659 | than stub_group_size and thus can be handled by one stub | |
6660 | section. (or the tail section is itself larger than | |
6661 | stub_group_size, in which case we may be toast.) We | |
6662 | should really be keeping track of the total size of stubs | |
6663 | added here, as stubs contribute to the final output | |
6664 | section size. That's a little tricky, and this way will | |
6665 | only break if stubs added make the total size more than | |
6666 | 2^25, ie. for the default stub_group_size, if stubs total | |
6667 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
6668 | do | |
721956f4 AM |
6669 | { |
6670 | prev = PREV_SEC (tail); | |
734b6cf9 | 6671 | /* Set up this stub group. */ |
721956f4 AM |
6672 | htab->stub_group[tail->id].link_sec = curr; |
6673 | } | |
734b6cf9 AM |
6674 | while (tail != curr && (tail = prev) != NULL); |
6675 | ||
6676 | /* But wait, there's more! Input sections up to stub_group_size | |
6677 | bytes before the stub section can be handled by it too. | |
6678 | Don't do this if we have a really large section after the | |
6679 | stubs, as adding more stubs increases the chance that | |
6680 | branches may not reach into the stub section. */ | |
6681 | if (!stubs_always_before_branch && !big_sec) | |
6682 | { | |
6683 | total = 0; | |
6684 | while (prev != NULL | |
6685 | && ((total += tail->output_offset - prev->output_offset) | |
6686 | < stub_group_size) | |
6687 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
6688 | { | |
6689 | tail = prev; | |
6690 | prev = PREV_SEC (tail); | |
6691 | htab->stub_group[tail->id].link_sec = curr; | |
6692 | } | |
6693 | } | |
6694 | tail = prev; | |
721956f4 AM |
6695 | } |
6696 | } | |
734b6cf9 AM |
6697 | while (list-- != htab->input_list); |
6698 | free (htab->input_list); | |
721956f4 AM |
6699 | #undef PREV_SEC |
6700 | } | |
6701 | ||
721956f4 AM |
6702 | /* Determine and set the size of the stub section for a final link. |
6703 | ||
6704 | The basic idea here is to examine all the relocations looking for | |
6705 | PC-relative calls to a target that is unreachable with a "bl" | |
6706 | instruction. */ | |
6707 | ||
b34976b6 | 6708 | bfd_boolean |
4ce794b7 | 6709 | ppc64_elf_size_stubs (bfd *output_bfd, |
4ce794b7 AM |
6710 | struct bfd_link_info *info, |
6711 | bfd_signed_vma group_size, | |
6712 | asection *(*add_stub_section) (const char *, asection *), | |
6713 | void (*layout_sections_again) (void)) | |
721956f4 AM |
6714 | { |
6715 | bfd_size_type stub_group_size; | |
b34976b6 | 6716 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6717 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
6718 | ||
6719 | /* Stash our params away. */ | |
721956f4 AM |
6720 | htab->add_stub_section = add_stub_section; |
6721 | htab->layout_sections_again = layout_sections_again; | |
6722 | stubs_always_before_branch = group_size < 0; | |
6723 | if (group_size < 0) | |
6724 | stub_group_size = -group_size; | |
6725 | else | |
6726 | stub_group_size = group_size; | |
6727 | if (stub_group_size == 1) | |
6728 | { | |
6729 | /* Default values. */ | |
58ac9f71 AM |
6730 | if (stubs_always_before_branch) |
6731 | { | |
6732 | stub_group_size = 0x1e00000; | |
6733 | if (htab->has_14bit_branch) | |
6734 | stub_group_size = 0x7800; | |
6735 | } | |
6736 | else | |
6737 | { | |
6738 | stub_group_size = 0x1c00000; | |
6739 | if (htab->has_14bit_branch) | |
6740 | stub_group_size = 0x7000; | |
6741 | } | |
721956f4 AM |
6742 | } |
6743 | ||
6744 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
6745 | ||
721956f4 AM |
6746 | while (1) |
6747 | { | |
6748 | bfd *input_bfd; | |
6749 | unsigned int bfd_indx; | |
6750 | asection *stub_sec; | |
b34976b6 | 6751 | bfd_boolean stub_changed; |
721956f4 AM |
6752 | |
6753 | htab->stub_iteration += 1; | |
b34976b6 | 6754 | stub_changed = FALSE; |
721956f4 AM |
6755 | |
6756 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
6757 | input_bfd != NULL; | |
6758 | input_bfd = input_bfd->link_next, bfd_indx++) | |
6759 | { | |
6760 | Elf_Internal_Shdr *symtab_hdr; | |
6761 | asection *section; | |
6cdc0ccc | 6762 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
6763 | |
6764 | /* We'll need the symbol table in a second. */ | |
6765 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6766 | if (symtab_hdr->sh_info == 0) | |
6767 | continue; | |
6768 | ||
721956f4 AM |
6769 | /* Walk over each section attached to the input bfd. */ |
6770 | for (section = input_bfd->sections; | |
6771 | section != NULL; | |
6772 | section = section->next) | |
6773 | { | |
721956f4 | 6774 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
6775 | |
6776 | /* If there aren't any relocs, then there's nothing more | |
6777 | to do. */ | |
6778 | if ((section->flags & SEC_RELOC) == 0 | |
6779 | || section->reloc_count == 0) | |
6780 | continue; | |
6781 | ||
6782 | /* If this section is a link-once section that will be | |
6783 | discarded, then don't create any stubs. */ | |
6784 | if (section->output_section == NULL | |
6785 | || section->output_section->owner != output_bfd) | |
6786 | continue; | |
6787 | ||
1e2f5b6e AM |
6788 | /* Get the relocs. */ |
6789 | internal_relocs | |
4ce794b7 | 6790 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 6791 | info->keep_memory); |
721956f4 | 6792 | if (internal_relocs == NULL) |
1e2f5b6e | 6793 | goto error_ret_free_local; |
721956f4 AM |
6794 | |
6795 | /* Now examine each relocation. */ | |
6796 | irela = internal_relocs; | |
6797 | irelaend = irela + section->reloc_count; | |
6798 | for (; irela < irelaend; irela++) | |
6799 | { | |
4ce794b7 AM |
6800 | enum elf_ppc64_reloc_type r_type; |
6801 | unsigned int r_indx; | |
721956f4 AM |
6802 | enum ppc_stub_type stub_type; |
6803 | struct ppc_stub_hash_entry *stub_entry; | |
6804 | asection *sym_sec; | |
6805 | bfd_vma sym_value; | |
6806 | bfd_vma destination; | |
6807 | struct ppc_link_hash_entry *hash; | |
411e1bfb AM |
6808 | struct elf_link_hash_entry *h; |
6809 | Elf_Internal_Sym *sym; | |
721956f4 AM |
6810 | char *stub_name; |
6811 | const asection *id_sec; | |
6812 | ||
6813 | r_type = ELF64_R_TYPE (irela->r_info); | |
6814 | r_indx = ELF64_R_SYM (irela->r_info); | |
6815 | ||
4ce794b7 | 6816 | if (r_type >= R_PPC64_max) |
721956f4 AM |
6817 | { |
6818 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 6819 | goto error_ret_free_internal; |
721956f4 AM |
6820 | } |
6821 | ||
6822 | /* Only look for stubs on branch instructions. */ | |
4ce794b7 AM |
6823 | if (r_type != R_PPC64_REL24 |
6824 | && r_type != R_PPC64_REL14 | |
6825 | && r_type != R_PPC64_REL14_BRTAKEN | |
6826 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
721956f4 AM |
6827 | continue; |
6828 | ||
6829 | /* Now determine the call target, its name, value, | |
6830 | section. */ | |
721956f4 | 6831 | destination = 0; |
411e1bfb AM |
6832 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6833 | r_indx, input_bfd)) | |
6834 | goto error_ret_free_internal; | |
6835 | hash = (struct ppc_link_hash_entry *) h; | |
6836 | ||
6837 | if (hash == NULL) | |
721956f4 AM |
6838 | { |
6839 | /* It's a local symbol. */ | |
411e1bfb | 6840 | sym_value = sym->st_value; |
721956f4 AM |
6841 | destination = (sym_value + irela->r_addend |
6842 | + sym_sec->output_offset | |
6843 | + sym_sec->output_section->vma); | |
6844 | } | |
6845 | else | |
6846 | { | |
6847 | /* It's an external symbol. */ | |
411e1bfb | 6848 | sym_value = 0; |
721956f4 AM |
6849 | if (hash->elf.root.type == bfd_link_hash_defined |
6850 | || hash->elf.root.type == bfd_link_hash_defweak) | |
6851 | { | |
721956f4 AM |
6852 | sym_value = hash->elf.root.u.def.value; |
6853 | if (sym_sec->output_section != NULL) | |
6854 | destination = (sym_value + irela->r_addend | |
6855 | + sym_sec->output_offset | |
6856 | + sym_sec->output_section->vma); | |
6857 | } | |
6858 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
6859 | ; | |
6860 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
6861 | ; | |
6862 | else | |
6863 | { | |
6864 | bfd_set_error (bfd_error_bad_value); | |
6865 | goto error_ret_free_internal; | |
6866 | } | |
6867 | } | |
6868 | ||
6869 | /* Determine what (if any) linker stub is needed. */ | |
6870 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
6871 | destination); | |
ad8e1ba5 AM |
6872 | |
6873 | if (stub_type != ppc_stub_plt_call) | |
6874 | { | |
6875 | /* Check whether we need a TOC adjusting stub. | |
6876 | Since the linker pastes together pieces from | |
6877 | different object files when creating the | |
6878 | _init and _fini functions, it may be that a | |
6879 | call to what looks like a local sym is in | |
6880 | fact a call needing a TOC adjustment. */ | |
6881 | if (sym_sec != NULL | |
6882 | && sym_sec->output_section != NULL | |
6883 | && (htab->stub_group[sym_sec->id].toc_off | |
9b5ecbd0 AM |
6884 | != htab->stub_group[section->id].toc_off) |
6885 | && sym_sec->has_gp_reloc | |
6886 | && section->has_gp_reloc) | |
ad8e1ba5 AM |
6887 | stub_type = ppc_stub_long_branch_r2off; |
6888 | } | |
6889 | ||
721956f4 AM |
6890 | if (stub_type == ppc_stub_none) |
6891 | continue; | |
6892 | ||
411e1bfb AM |
6893 | /* __tls_get_addr calls might be eliminated. */ |
6894 | if (stub_type != ppc_stub_plt_call | |
6895 | && hash != NULL | |
6896 | && &hash->elf == htab->tls_get_addr | |
6897 | && section->has_tls_reloc | |
6898 | && irela != internal_relocs) | |
6899 | { | |
6900 | /* Get tls info. */ | |
e7b938ca | 6901 | char *tls_mask; |
411e1bfb | 6902 | |
0d4792f7 | 6903 | if (!get_tls_mask (&tls_mask, NULL, &local_syms, |
411e1bfb AM |
6904 | irela - 1, input_bfd)) |
6905 | goto error_ret_free_internal; | |
e7b938ca | 6906 | if (*tls_mask != 0) |
411e1bfb AM |
6907 | continue; |
6908 | } | |
6909 | ||
721956f4 AM |
6910 | /* Support for grouping stub sections. */ |
6911 | id_sec = htab->stub_group[section->id].link_sec; | |
6912 | ||
6913 | /* Get the name of this stub. */ | |
6914 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
6915 | if (!stub_name) | |
6916 | goto error_ret_free_internal; | |
6917 | ||
6918 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 6919 | stub_name, FALSE, FALSE); |
721956f4 AM |
6920 | if (stub_entry != NULL) |
6921 | { | |
6922 | /* The proper stub has already been created. */ | |
6923 | free (stub_name); | |
6924 | continue; | |
6925 | } | |
6926 | ||
6927 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
6928 | if (stub_entry == NULL) | |
6929 | { | |
6930 | free (stub_name); | |
6cdc0ccc AM |
6931 | error_ret_free_internal: |
6932 | if (elf_section_data (section)->relocs == NULL) | |
6933 | free (internal_relocs); | |
6934 | error_ret_free_local: | |
6935 | if (local_syms != NULL | |
6936 | && (symtab_hdr->contents | |
6937 | != (unsigned char *) local_syms)) | |
6938 | free (local_syms); | |
b34976b6 | 6939 | return FALSE; |
721956f4 AM |
6940 | } |
6941 | ||
ad8e1ba5 | 6942 | stub_entry->stub_type = stub_type; |
721956f4 AM |
6943 | stub_entry->target_value = sym_value; |
6944 | stub_entry->target_section = sym_sec; | |
721956f4 | 6945 | stub_entry->h = hash; |
411e1bfb | 6946 | stub_entry->addend = irela->r_addend; |
b34976b6 | 6947 | stub_changed = TRUE; |
721956f4 AM |
6948 | } |
6949 | ||
6950 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 6951 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 6952 | free (internal_relocs); |
721956f4 | 6953 | } |
6cdc0ccc AM |
6954 | |
6955 | if (local_syms != NULL | |
6956 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6957 | { | |
6958 | if (!info->keep_memory) | |
6959 | free (local_syms); | |
6960 | else | |
6961 | symtab_hdr->contents = (unsigned char *) local_syms; | |
6962 | } | |
721956f4 AM |
6963 | } |
6964 | ||
6965 | if (!stub_changed) | |
6966 | break; | |
6967 | ||
6968 | /* OK, we've added some stubs. Find out the new size of the | |
6969 | stub sections. */ | |
6970 | for (stub_sec = htab->stub_bfd->sections; | |
6971 | stub_sec != NULL; | |
6972 | stub_sec = stub_sec->next) | |
e717da7e AM |
6973 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
6974 | { | |
6975 | stub_sec->_raw_size = 0; | |
6976 | stub_sec->_cooked_size = 0; | |
6977 | } | |
4ce794b7 AM |
6978 | htab->brlt->_raw_size = 0; |
6979 | htab->brlt->_cooked_size = 0; | |
721956f4 AM |
6980 | |
6981 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab); | |
6982 | ||
6983 | /* Ask the linker to do its stuff. */ | |
6984 | (*htab->layout_sections_again) (); | |
6985 | } | |
6986 | ||
afbe61cf AM |
6987 | /* It would be nice to strip .branch_lt from the output if the |
6988 | section is empty, but it's too late. If we strip sections here, | |
6989 | the dynamic symbol table is corrupted since the section symbol | |
6990 | for the stripped section isn't written. */ | |
721956f4 | 6991 | |
b34976b6 | 6992 | return TRUE; |
721956f4 AM |
6993 | } |
6994 | ||
6995 | /* Called after we have determined section placement. If sections | |
805fc799 | 6996 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 6997 | |
805fc799 | 6998 | bfd_vma |
4ce794b7 | 6999 | ppc64_elf_toc (bfd *obfd) |
721956f4 | 7000 | { |
805fc799 AM |
7001 | asection *s; |
7002 | bfd_vma TOCstart; | |
721956f4 | 7003 | |
805fc799 AM |
7004 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
7005 | order. The TOC starts where the first of these sections starts. */ | |
7006 | s = bfd_get_section_by_name (obfd, ".got"); | |
7007 | if (s == NULL) | |
7008 | s = bfd_get_section_by_name (obfd, ".toc"); | |
7009 | if (s == NULL) | |
7010 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
7011 | if (s == NULL) | |
7012 | s = bfd_get_section_by_name (obfd, ".plt"); | |
7013 | if (s == NULL) | |
7014 | { | |
7015 | /* This may happen for | |
7016 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
7017 | .toc directive | |
7018 | o bad linker script | |
7019 | o --gc-sections and empty TOC sections | |
7020 | ||
7021 | FIXME: Warn user? */ | |
7022 | ||
7023 | /* Look for a likely section. We probably won't even be | |
7024 | using TOCstart. */ | |
7025 | for (s = obfd->sections; s != NULL; s = s->next) | |
7026 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
7027 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7028 | break; | |
721956f4 | 7029 | if (s == NULL) |
805fc799 AM |
7030 | for (s = obfd->sections; s != NULL; s = s->next) |
7031 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
7032 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7033 | break; | |
721956f4 | 7034 | if (s == NULL) |
805fc799 AM |
7035 | for (s = obfd->sections; s != NULL; s = s->next) |
7036 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
7037 | break; | |
721956f4 | 7038 | if (s == NULL) |
805fc799 AM |
7039 | for (s = obfd->sections; s != NULL; s = s->next) |
7040 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
7041 | break; | |
7042 | } | |
721956f4 | 7043 | |
805fc799 AM |
7044 | TOCstart = 0; |
7045 | if (s != NULL) | |
7046 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 7047 | |
805fc799 | 7048 | return TOCstart; |
721956f4 AM |
7049 | } |
7050 | ||
7051 | /* Build all the stubs associated with the current output file. | |
7052 | The stubs are kept in a hash table attached to the main linker | |
7053 | hash table. This function is called via gldelf64ppc_finish. */ | |
7054 | ||
b34976b6 | 7055 | bfd_boolean |
4ce794b7 AM |
7056 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
7057 | struct bfd_link_info *info, | |
7058 | char **stats) | |
5d1634d7 AM |
7059 | { |
7060 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 7061 | asection *stub_sec; |
5d1634d7 | 7062 | bfd_byte *p; |
e717da7e | 7063 | int stub_sec_count = 0; |
5d1634d7 | 7064 | |
ad8e1ba5 | 7065 | htab->emit_stub_syms = emit_stub_syms; |
721956f4 AM |
7066 | for (stub_sec = htab->stub_bfd->sections; |
7067 | stub_sec != NULL; | |
7068 | stub_sec = stub_sec->next) | |
e717da7e AM |
7069 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
7070 | { | |
7071 | bfd_size_type size; | |
721956f4 | 7072 | |
e717da7e AM |
7073 | /* Allocate memory to hold the linker stubs. */ |
7074 | size = stub_sec->_raw_size; | |
7075 | if (size != 0) | |
7076 | { | |
7077 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); | |
7078 | if (stub_sec->contents == NULL) | |
7079 | return FALSE; | |
7080 | } | |
7081 | stub_sec->_cooked_size = 0; | |
7082 | } | |
5d1634d7 | 7083 | |
4ce794b7 | 7084 | if (htab->plt != NULL) |
5d1634d7 | 7085 | { |
9f951329 | 7086 | unsigned int indx; |
ad8e1ba5 | 7087 | bfd_vma plt0; |
9f951329 | 7088 | |
721956f4 | 7089 | /* Build the .glink plt call stub. */ |
4ce794b7 AM |
7090 | plt0 = (htab->plt->output_section->vma |
7091 | + htab->plt->output_offset | |
7092 | - (htab->glink->output_section->vma | |
7093 | + htab->glink->output_offset | |
ad8e1ba5 AM |
7094 | + GLINK_CALL_STUB_SIZE)); |
7095 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 7096 | { |
ad8e1ba5 AM |
7097 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
7098 | bfd_set_error (bfd_error_bad_value); | |
7099 | return FALSE; | |
721956f4 | 7100 | } |
721956f4 | 7101 | |
97b639ba AM |
7102 | if (htab->emit_stub_syms) |
7103 | { | |
7104 | struct elf_link_hash_entry *h; | |
7105 | h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE); | |
7106 | if (h == NULL) | |
7107 | return FALSE; | |
7108 | if (h->root.type == bfd_link_hash_new) | |
7109 | { | |
7110 | h->root.type = bfd_link_hash_defined; | |
7111 | h->root.u.def.section = htab->glink; | |
7112 | h->root.u.def.value = 0; | |
7113 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
7114 | | ELF_LINK_HASH_DEF_REGULAR | |
7115 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
7116 | | ELF_LINK_FORCED_LOCAL); | |
7117 | } | |
7118 | } | |
4ce794b7 AM |
7119 | p = htab->glink->contents; |
7120 | bfd_put_32 (htab->glink->owner, MFCTR_R12, p); | |
ad8e1ba5 | 7121 | p += 4; |
4ce794b7 | 7122 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p); |
ad8e1ba5 | 7123 | p += 4; |
4ce794b7 | 7124 | bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p); |
ad8e1ba5 | 7125 | p += 4; |
4ce794b7 | 7126 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 7127 | p += 4; |
4ce794b7 | 7128 | bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p); |
ad8e1ba5 | 7129 | p += 4; |
4ce794b7 | 7130 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p); |
ad8e1ba5 | 7131 | p += 4; |
4ce794b7 | 7132 | bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p); |
ad8e1ba5 | 7133 | p += 4; |
4ce794b7 | 7134 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 7135 | p += 4; |
4ce794b7 | 7136 | bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p); |
ad8e1ba5 | 7137 | p += 4; |
4ce794b7 | 7138 | bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); |
ad8e1ba5 | 7139 | p += 4; |
4ce794b7 | 7140 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 7141 | p += 4; |
4ce794b7 | 7142 | bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 7143 | p += 4; |
4ce794b7 | 7144 | bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p); |
ad8e1ba5 | 7145 | p += 4; |
4ce794b7 | 7146 | bfd_put_32 (htab->glink->owner, MTCTR_R11, p); |
ad8e1ba5 | 7147 | p += 4; |
4ce794b7 | 7148 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p); |
ad8e1ba5 | 7149 | p += 4; |
4ce794b7 | 7150 | bfd_put_32 (htab->glink->owner, BCTR, p); |
ad8e1ba5 AM |
7151 | p += 4; |
7152 | ||
9f951329 AM |
7153 | /* Build the .glink lazy link call stubs. */ |
7154 | indx = 0; | |
4ce794b7 | 7155 | while (p < htab->glink->contents + htab->glink->_raw_size) |
9f951329 AM |
7156 | { |
7157 | if (indx < 0x8000) | |
7158 | { | |
4ce794b7 | 7159 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
9f951329 AM |
7160 | p += 4; |
7161 | } | |
7162 | else | |
7163 | { | |
4ce794b7 | 7164 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
9f951329 | 7165 | p += 4; |
4ce794b7 | 7166 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
9f951329 AM |
7167 | p += 4; |
7168 | } | |
4ce794b7 AM |
7169 | bfd_put_32 (htab->glink->owner, |
7170 | B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 7171 | indx++; |
9f951329 AM |
7172 | p += 4; |
7173 | } | |
4ce794b7 | 7174 | htab->glink->_cooked_size = p - htab->glink->contents; |
5d1634d7 | 7175 | } |
5d1634d7 | 7176 | |
4ce794b7 | 7177 | if (htab->brlt->_raw_size != 0) |
721956f4 | 7178 | { |
4ce794b7 AM |
7179 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
7180 | htab->brlt->_raw_size); | |
7181 | if (htab->brlt->contents == NULL) | |
b34976b6 | 7182 | return FALSE; |
721956f4 | 7183 | } |
5d1634d7 | 7184 | |
721956f4 AM |
7185 | /* Build the stubs as directed by the stub hash table. */ |
7186 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 7187 | |
721956f4 AM |
7188 | for (stub_sec = htab->stub_bfd->sections; |
7189 | stub_sec != NULL; | |
7190 | stub_sec = stub_sec->next) | |
e717da7e AM |
7191 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
7192 | { | |
7193 | stub_sec_count += 1; | |
7194 | if (stub_sec->_raw_size != stub_sec->_cooked_size) | |
7195 | break; | |
7196 | } | |
5d1634d7 | 7197 | |
721956f4 | 7198 | if (stub_sec != NULL |
4ce794b7 | 7199 | || htab->glink->_raw_size != htab->glink->_cooked_size) |
5d1634d7 | 7200 | { |
b34976b6 | 7201 | htab->stub_error = TRUE; |
721956f4 | 7202 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 7203 | } |
721956f4 | 7204 | |
d2a300cf AM |
7205 | if (htab->stub_error) |
7206 | return FALSE; | |
7207 | ||
7208 | if (stats != NULL) | |
7209 | { | |
7210 | *stats = bfd_malloc (500); | |
7211 | if (*stats == NULL) | |
7212 | return FALSE; | |
7213 | ||
7214 | sprintf (*stats, _("linker stubs in %u groups\n" | |
7215 | " branch %lu\n" | |
7216 | " toc adjust %lu\n" | |
7217 | " long branch %lu\n" | |
7218 | " long toc adj %lu\n" | |
7219 | " plt call %lu"), | |
e717da7e | 7220 | stub_sec_count, |
4ce794b7 AM |
7221 | htab->stub_count[ppc_stub_long_branch - 1], |
7222 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
7223 | htab->stub_count[ppc_stub_plt_branch - 1], | |
7224 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
7225 | htab->stub_count[ppc_stub_plt_call - 1]); | |
d2a300cf AM |
7226 | } |
7227 | return TRUE; | |
5bd4f169 AM |
7228 | } |
7229 | ||
5bd4f169 AM |
7230 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7231 | to handle the relocations for a section. | |
7232 | ||
7233 | The relocs are always passed as Rela structures; if the section | |
7234 | actually uses Rel structures, the r_addend field will always be | |
7235 | zero. | |
7236 | ||
7237 | This function is responsible for adjust the section contents as | |
7238 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7239 | relocatable output file) adjusting the reloc addend as |
5bd4f169 AM |
7240 | necessary. |
7241 | ||
7242 | This function does not have to worry about setting the reloc | |
7243 | address or the reloc symbol index. | |
7244 | ||
7245 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7246 | ||
7247 | LOCAL_SECTIONS is an array giving the section in the input file | |
7248 | corresponding to the st_shndx field of each local symbol. | |
7249 | ||
7250 | The global hash table entry for the global symbols can be found | |
7251 | via elf_sym_hashes (input_bfd). | |
7252 | ||
1049f94e | 7253 | When generating relocatable output, this function must handle |
5bd4f169 AM |
7254 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7255 | going to be the section symbol corresponding to the output | |
7256 | section, which means that the addend must be adjusted | |
7257 | accordingly. */ | |
7258 | ||
b34976b6 | 7259 | static bfd_boolean |
4ce794b7 AM |
7260 | ppc64_elf_relocate_section (bfd *output_bfd, |
7261 | struct bfd_link_info *info, | |
7262 | bfd *input_bfd, | |
7263 | asection *input_section, | |
7264 | bfd_byte *contents, | |
7265 | Elf_Internal_Rela *relocs, | |
7266 | Elf_Internal_Sym *local_syms, | |
7267 | asection **local_sections) | |
5bd4f169 | 7268 | { |
65f38f15 | 7269 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
7270 | Elf_Internal_Shdr *symtab_hdr; |
7271 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
7272 | Elf_Internal_Rela *rel; |
7273 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
7274 | Elf_Internal_Rela outrel; |
7275 | bfd_byte *loc; | |
411e1bfb | 7276 | struct got_entry **local_got_ents; |
5bd4f169 | 7277 | bfd_vma TOCstart; |
b34976b6 AM |
7278 | bfd_boolean ret = TRUE; |
7279 | bfd_boolean is_opd; | |
96e0dda4 | 7280 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 7281 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 7282 | |
1049f94e | 7283 | if (info->relocatable) |
b34976b6 | 7284 | return TRUE; |
b491616a | 7285 | |
65f38f15 | 7286 | /* Initialize howto table if needed. */ |
5bd4f169 | 7287 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
7288 | ppc_howto_init (); |
7289 | ||
65f38f15 | 7290 | htab = ppc_hash_table (info); |
411e1bfb | 7291 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 7292 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
7293 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
7294 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 7295 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 7296 | |
5bd4f169 AM |
7297 | rel = relocs; |
7298 | relend = relocs + input_section->reloc_count; | |
7299 | for (; rel < relend; rel++) | |
7300 | { | |
04c9666a | 7301 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
7302 | bfd_vma addend; |
7303 | bfd_reloc_status_type r; | |
7304 | Elf_Internal_Sym *sym; | |
7305 | asection *sec; | |
7306 | struct elf_link_hash_entry *h; | |
721956f4 | 7307 | struct elf_link_hash_entry *fdh; |
5bd4f169 | 7308 | const char *sym_name; |
0d4792f7 | 7309 | unsigned long r_symndx, toc_symndx; |
951fd09b | 7310 | char tls_mask, tls_gd, tls_type; |
0d4792f7 | 7311 | char sym_type; |
5bd4f169 | 7312 | bfd_vma relocation; |
b34976b6 AM |
7313 | bfd_boolean unresolved_reloc; |
7314 | bfd_boolean warned; | |
50bc7936 | 7315 | unsigned long insn, mask; |
721956f4 AM |
7316 | struct ppc_stub_hash_entry *stub_entry; |
7317 | bfd_vma max_br_offset; | |
7318 | bfd_vma from; | |
5bd4f169 | 7319 | |
4ce794b7 | 7320 | r_type = ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 7321 | r_symndx = ELF64_R_SYM (rel->r_info); |
ee87f2da AM |
7322 | |
7323 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
7324 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
7325 | proper TOC base to use. */ | |
7326 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
7327 | && rel != relocs | |
7328 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
7329 | && is_opd) | |
7330 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
7331 | ||
4ce794b7 AM |
7332 | sym = NULL; |
7333 | sec = NULL; | |
7334 | h = NULL; | |
7335 | sym_name = NULL; | |
b34976b6 AM |
7336 | unresolved_reloc = FALSE; |
7337 | warned = FALSE; | |
65f38f15 | 7338 | |
0b13192e | 7339 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
7340 | { |
7341 | /* It's a local symbol. */ | |
7342 | sym = local_syms + r_symndx; | |
7343 | sec = local_sections[r_symndx]; | |
411e1bfb | 7344 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
0d4792f7 | 7345 | sym_type = ELF64_ST_TYPE (sym->st_info); |
f8df10f4 | 7346 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
1e2f5b6e AM |
7347 | if (elf_section_data (sec) != NULL) |
7348 | { | |
7349 | long *opd_sym_adjust; | |
7350 | ||
f0abc2a1 | 7351 | opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust; |
1e2f5b6e AM |
7352 | if (opd_sym_adjust != NULL && sym->st_value % 24 == 0) |
7353 | relocation += opd_sym_adjust[sym->st_value / 24]; | |
7354 | } | |
5bd4f169 AM |
7355 | } |
7356 | else | |
7357 | { | |
560e09e9 NC |
7358 | RELOC_FOR_GLOBAL_SYMBOL (h, sym_hashes, r_symndx, |
7359 | symtab_hdr, relocation, sec, | |
7360 | unresolved_reloc, info, | |
7361 | warned); | |
5bd4f169 | 7362 | sym_name = h->root.root.string; |
0d4792f7 | 7363 | sym_type = h->type; |
5bd4f169 AM |
7364 | } |
7365 | ||
951fd09b AM |
7366 | /* TLS optimizations. Replace instruction sequences and relocs |
7367 | based on information we collected in tls_optimize. We edit | |
7368 | RELOCS so that --emit-relocs will output something sensible | |
7369 | for the final instruction stream. */ | |
7370 | tls_mask = 0; | |
7371 | tls_gd = 0; | |
0d4792f7 | 7372 | toc_symndx = 0; |
d881513a | 7373 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
7374 | { |
7375 | if (h != NULL) | |
e7b938ca | 7376 | tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask; |
411e1bfb AM |
7377 | else if (local_got_ents != NULL) |
7378 | { | |
e7b938ca AM |
7379 | char *lgot_masks; |
7380 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
7381 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb | 7382 | } |
0d4792f7 AM |
7383 | if (tls_mask == 0 && r_type == R_PPC64_TLS) |
7384 | { | |
7385 | /* Check for toc tls entries. */ | |
7386 | char *toc_tls; | |
7387 | ||
7388 | if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms, | |
7389 | rel, input_bfd)) | |
7390 | return FALSE; | |
7391 | ||
7392 | if (toc_tls) | |
7393 | tls_mask = *toc_tls; | |
7394 | } | |
7395 | } | |
7396 | ||
7397 | /* Check that tls relocs are used with tls syms, and non-tls | |
7398 | relocs are used with non-tls syms. */ | |
7399 | if (r_symndx != 0 | |
7400 | && r_type != R_PPC64_NONE | |
7401 | && (h == NULL | |
7402 | || h->root.type == bfd_link_hash_defined | |
7403 | || h->root.type == bfd_link_hash_defweak) | |
7404 | && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS)) | |
7405 | { | |
7406 | if (r_type == R_PPC64_TLS && tls_mask != 0) | |
7407 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ | |
7408 | ; | |
7409 | else | |
7410 | (*_bfd_error_handler) | |
7411 | (sym_type == STT_TLS | |
7412 | ? _("%s(%s+0x%lx): %s used with TLS symbol %s") | |
7413 | : _("%s(%s+0x%lx): %s used with non-TLS symbol %s"), | |
7414 | bfd_archive_filename (input_bfd), | |
7415 | input_section->name, | |
7416 | (long) rel->r_offset, | |
7417 | ppc64_elf_howto_table[r_type]->name, | |
7418 | sym_name); | |
411e1bfb AM |
7419 | } |
7420 | ||
7421 | /* Ensure reloc mapping code below stays sane. */ | |
7422 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
7423 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
7424 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
7425 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
7426 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
7427 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
7428 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
7429 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
7430 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
7431 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
7432 | abort (); | |
0d4792f7 | 7433 | |
411e1bfb AM |
7434 | switch (r_type) |
7435 | { | |
7436 | default: | |
411e1bfb AM |
7437 | break; |
7438 | ||
7439 | case R_PPC64_TOC16: | |
7440 | case R_PPC64_TOC16_LO: | |
7441 | case R_PPC64_TOC16_DS: | |
7442 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
7443 | { |
7444 | /* Check for toc tls entries. */ | |
7445 | char *toc_tls; | |
951fd09b | 7446 | int retval; |
411e1bfb | 7447 | |
0d4792f7 AM |
7448 | retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms, |
7449 | rel, input_bfd); | |
951fd09b | 7450 | if (retval == 0) |
411e1bfb AM |
7451 | return FALSE; |
7452 | ||
7453 | if (toc_tls) | |
7454 | { | |
951fd09b | 7455 | tls_mask = *toc_tls; |
411e1bfb AM |
7456 | if (r_type == R_PPC64_TOC16_DS |
7457 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
7458 | { |
7459 | if (tls_mask != 0 | |
7460 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
7461 | goto toctprel; | |
7462 | } | |
411e1bfb | 7463 | else |
951fd09b AM |
7464 | { |
7465 | /* If we found a GD reloc pair, then we might be | |
7466 | doing a GD->IE transition. */ | |
7467 | if (retval == 2) | |
7468 | { | |
7469 | tls_gd = TLS_TPRELGD; | |
7470 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7471 | goto tls_get_addr_check; | |
7472 | } | |
7473 | else if (retval == 3) | |
7474 | { | |
7475 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7476 | goto tls_get_addr_check; | |
7477 | } | |
7478 | } | |
411e1bfb AM |
7479 | } |
7480 | } | |
7481 | break; | |
7482 | ||
7483 | case R_PPC64_GOT_TPREL16_DS: | |
7484 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
7485 | if (tls_mask != 0 |
7486 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 7487 | { |
81407a69 | 7488 | toctprel: |
411e1bfb AM |
7489 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
7490 | insn &= 31 << 21; | |
7491 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
7492 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
7493 | r_type = R_PPC64_TPREL16_HA; | |
0d4792f7 AM |
7494 | if (toc_symndx != 0) |
7495 | { | |
7496 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
7497 | /* We changed the symbol. Start over in order to | |
7498 | get h, sym, sec etc. right. */ | |
7499 | rel--; | |
7500 | continue; | |
7501 | } | |
7502 | else | |
7503 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7504 | } |
7505 | break; | |
7506 | ||
7507 | case R_PPC64_TLS: | |
951fd09b AM |
7508 | if (tls_mask != 0 |
7509 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 7510 | { |
50bc7936 | 7511 | bfd_vma rtra; |
411e1bfb | 7512 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
772119ce | 7513 | if ((insn & ((0x3f << 26) | (31 << 11))) |
411e1bfb AM |
7514 | == ((31 << 26) | (13 << 11))) |
7515 | rtra = insn & ((1 << 26) - (1 << 16)); | |
772119ce | 7516 | else if ((insn & ((0x3f << 26) | (31 << 16))) |
411e1bfb AM |
7517 | == ((31 << 26) | (13 << 16))) |
7518 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
7519 | else | |
7520 | abort (); | |
7521 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
7522 | /* add -> addi. */ | |
7523 | insn = 14 << 26; | |
7524 | else if ((insn & (31 << 1)) == 23 << 1 | |
7525 | && ((insn & (31 << 6)) < 14 << 6 | |
7526 | || ((insn & (31 << 6)) >= 16 << 6 | |
7527 | && (insn & (31 << 6)) < 24 << 6))) | |
7528 | /* load and store indexed -> dform. */ | |
7529 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
7530 | else if ((insn & (31 << 1)) == 21 << 1 | |
7531 | && (insn & (0x1a << 6)) == 0) | |
7532 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7533 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
7534 | | ((insn >> 6) & 1)); | |
7535 | else if ((insn & (31 << 1)) == 21 << 1 | |
7536 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
7537 | /* lwax -> lwa. */ | |
7538 | insn = (58 << 26) | 2; | |
7539 | else | |
7540 | abort (); | |
7541 | insn |= rtra; | |
7542 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
411e1bfb AM |
7543 | /* Was PPC64_TLS which sits on insn boundary, now |
7544 | PPC64_TPREL16_LO which is at insn+2. */ | |
7545 | rel->r_offset += 2; | |
0d4792f7 AM |
7546 | r_type = R_PPC64_TPREL16_LO; |
7547 | if (toc_symndx != 0) | |
7548 | { | |
7549 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
7550 | /* We changed the symbol. Start over in order to | |
7551 | get h, sym, sec etc. right. */ | |
7552 | rel--; | |
7553 | continue; | |
7554 | } | |
7555 | else | |
7556 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7557 | } |
7558 | break; | |
7559 | ||
411e1bfb AM |
7560 | case R_PPC64_GOT_TLSGD16_HI: |
7561 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
7562 | tls_gd = TLS_TPRELGD; |
7563 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7564 | goto tls_gdld_hi; | |
7565 | break; | |
7566 | ||
411e1bfb AM |
7567 | case R_PPC64_GOT_TLSLD16_HI: |
7568 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7569 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 7570 | { |
951fd09b AM |
7571 | tls_gdld_hi: |
7572 | if ((tls_mask & tls_gd) != 0) | |
7573 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7574 | + R_PPC64_GOT_TPREL16_DS); | |
7575 | else | |
411e1bfb | 7576 | { |
951fd09b AM |
7577 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7578 | rel->r_offset -= 2; | |
7579 | r_type = R_PPC64_NONE; | |
411e1bfb | 7580 | } |
951fd09b | 7581 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
7582 | } |
7583 | break; | |
7584 | ||
951fd09b AM |
7585 | case R_PPC64_GOT_TLSGD16: |
7586 | case R_PPC64_GOT_TLSGD16_LO: | |
7587 | tls_gd = TLS_TPRELGD; | |
7588 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7589 | goto tls_get_addr_check; | |
7590 | break; | |
411e1bfb | 7591 | |
951fd09b AM |
7592 | case R_PPC64_GOT_TLSLD16: |
7593 | case R_PPC64_GOT_TLSLD16_LO: | |
7594 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7595 | { | |
7596 | tls_get_addr_check: | |
7597 | if (rel + 1 < relend) | |
411e1bfb | 7598 | { |
951fd09b AM |
7599 | enum elf_ppc64_reloc_type r_type2; |
7600 | unsigned long r_symndx2; | |
7601 | struct elf_link_hash_entry *h2; | |
7602 | bfd_vma insn1, insn2, insn3; | |
7603 | bfd_vma offset; | |
7604 | ||
7605 | /* The next instruction should be a call to | |
7606 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4ce794b7 | 7607 | r_type2 = ELF64_R_TYPE (rel[1].r_info); |
951fd09b AM |
7608 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); |
7609 | if (r_symndx2 < symtab_hdr->sh_info | |
7610 | || (r_type2 != R_PPC64_REL14 | |
7611 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
7612 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
7613 | && r_type2 != R_PPC64_REL24)) | |
7614 | break; | |
7615 | ||
7616 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
7617 | while (h2->root.type == bfd_link_hash_indirect | |
7618 | || h2->root.type == bfd_link_hash_warning) | |
7619 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
7620 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
7621 | break; | |
7622 | ||
7623 | /* OK, it checks out. Replace the call. */ | |
7624 | offset = rel[1].r_offset; | |
7625 | insn1 = bfd_get_32 (output_bfd, | |
7626 | contents + rel->r_offset - 2); | |
7627 | insn3 = bfd_get_32 (output_bfd, | |
7628 | contents + offset + 4); | |
7629 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 7630 | { |
951fd09b AM |
7631 | /* IE */ |
7632 | insn1 &= (1 << 26) - (1 << 2); | |
7633 | insn1 |= 58 << 26; /* ld */ | |
7634 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
7635 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
7636 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
7637 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7638 | + R_PPC64_GOT_TPREL16_DS); | |
7639 | else | |
7640 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
7641 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7642 | } |
7643 | else | |
951fd09b AM |
7644 | { |
7645 | /* LE */ | |
7646 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
7647 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7648 | if (tls_gd == 0) | |
7649 | { | |
7650 | /* Was an LD reloc. */ | |
7651 | r_symndx = 0; | |
7652 | rel->r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7653 | rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7654 | } | |
0d4792f7 AM |
7655 | else if (toc_symndx != 0) |
7656 | r_symndx = toc_symndx; | |
951fd09b AM |
7657 | r_type = R_PPC64_TPREL16_HA; |
7658 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7659 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
7660 | R_PPC64_TPREL16_LO); | |
7661 | rel[1].r_offset += 2; | |
7662 | } | |
7663 | if (insn3 == NOP | |
7664 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
7665 | { | |
7666 | insn3 = insn2; | |
7667 | insn2 = NOP; | |
7668 | rel[1].r_offset += 4; | |
7669 | } | |
7670 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
7671 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7672 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
0d4792f7 | 7673 | if (tls_gd == 0 || toc_symndx != 0) |
951fd09b | 7674 | { |
0d4792f7 AM |
7675 | /* We changed the symbol. Start over in order |
7676 | to get h, sym, sec etc. right. */ | |
951fd09b AM |
7677 | rel--; |
7678 | continue; | |
7679 | } | |
411e1bfb | 7680 | } |
411e1bfb | 7681 | } |
411e1bfb AM |
7682 | break; |
7683 | ||
7684 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
7685 | if (rel + 1 < relend |
7686 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
7687 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 7688 | { |
951fd09b AM |
7689 | if ((tls_mask & TLS_GD) == 0) |
7690 | { | |
7691 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
7692 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7693 | r_type = R_PPC64_TPREL64; | |
7694 | else | |
7695 | { | |
4ce794b7 | 7696 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
951fd09b AM |
7697 | r_type = R_PPC64_NONE; |
7698 | } | |
7699 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7700 | } | |
7701 | } | |
7702 | else | |
7703 | { | |
7704 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb | 7705 | { |
4ce794b7 | 7706 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
411e1bfb | 7707 | r_type = R_PPC64_NONE; |
951fd09b | 7708 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 7709 | } |
411e1bfb AM |
7710 | } |
7711 | break; | |
7712 | ||
7713 | case R_PPC64_TPREL64: | |
951fd09b | 7714 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
7715 | { |
7716 | r_type = R_PPC64_NONE; | |
7717 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7718 | } | |
7719 | break; | |
7720 | } | |
7721 | ||
7722 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 7723 | insn = 0; |
65f38f15 | 7724 | switch (r_type) |
5bd4f169 AM |
7725 | { |
7726 | default: | |
65f38f15 | 7727 | break; |
5bd4f169 | 7728 | |
65f38f15 AM |
7729 | /* Branch taken prediction relocations. */ |
7730 | case R_PPC64_ADDR14_BRTAKEN: | |
7731 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
7732 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
7733 | /* Fall thru. */ | |
65f38f15 | 7734 | |
86c76c7b | 7735 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
7736 | case R_PPC64_ADDR14_BRNTAKEN: |
7737 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
7738 | insn |= bfd_get_32 (output_bfd, |
7739 | contents + rel->r_offset) & ~(0x01 << 21); | |
96e0dda4 AM |
7740 | if (is_power4) |
7741 | { | |
7742 | /* Set 'a' bit. This is 0b00010 in BO field for branch | |
7743 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
7744 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
7745 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
7746 | insn |= 0x02 << 21; | |
7747 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
7748 | insn |= 0x08 << 21; | |
7749 | else | |
7750 | break; | |
7751 | } | |
65f38f15 | 7752 | else |
96e0dda4 | 7753 | { |
411e1bfb | 7754 | from = (rel->r_offset |
805fc799 AM |
7755 | + input_section->output_offset |
7756 | + input_section->output_section->vma); | |
7757 | ||
96e0dda4 | 7758 | /* Invert 'y' bit if not the default. */ |
411e1bfb | 7759 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) |
96e0dda4 AM |
7760 | insn ^= 0x01 << 21; |
7761 | } | |
86c76c7b | 7762 | |
4ce794b7 | 7763 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
65f38f15 | 7764 | break; |
5bd4f169 | 7765 | |
65f38f15 | 7766 | case R_PPC64_REL24: |
ad8e1ba5 AM |
7767 | /* Calls to functions with a different TOC, such as calls to |
7768 | shared objects, need to alter the TOC pointer. This is | |
7769 | done using a linkage stub. A REL24 branching to these | |
7770 | linkage stubs needs to be followed by a nop, as the nop | |
7771 | will be replaced with an instruction to restore the TOC | |
7772 | base pointer. */ | |
7773 | if (((h != NULL | |
7774 | && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL | |
7775 | && fdh->plt.plist != NULL) | |
7776 | || ((fdh = h, sec) != NULL | |
7777 | && sec->output_section != NULL | |
7778 | && (htab->stub_group[sec->id].toc_off | |
7779 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 7780 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
7781 | rel, htab)) != NULL |
7782 | && (stub_entry->stub_type == ppc_stub_plt_call | |
7783 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
7784 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 7785 | { |
b34976b6 | 7786 | bfd_boolean can_plt_call = 0; |
721956f4 | 7787 | |
411e1bfb | 7788 | if (rel->r_offset + 8 <= input_section->_cooked_size) |
41bd81ab | 7789 | { |
411e1bfb | 7790 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
721956f4 AM |
7791 | if (insn == NOP |
7792 | || insn == CROR_151515 || insn == CROR_313131) | |
41bd81ab | 7793 | { |
4ce794b7 | 7794 | bfd_put_32 (input_bfd, LD_R2_40R1, |
411e1bfb | 7795 | contents + rel->r_offset + 4); |
721956f4 | 7796 | can_plt_call = 1; |
41bd81ab | 7797 | } |
5bd4f169 | 7798 | } |
721956f4 AM |
7799 | |
7800 | if (!can_plt_call) | |
7801 | { | |
ad8e1ba5 AM |
7802 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7803 | { | |
7804 | /* If this is a plain branch rather than a branch | |
7805 | and link, don't require a nop. */ | |
7806 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
7807 | if ((insn & 1) == 0) | |
7808 | can_plt_call = 1; | |
7809 | } | |
6ab189d5 AM |
7810 | else if (h != NULL |
7811 | && strcmp (h->root.root.string, | |
7812 | ".__libc_start_main") == 0) | |
7813 | { | |
7814 | /* Allow crt1 branch to go via a toc adjusting stub. */ | |
7815 | can_plt_call = 1; | |
7816 | } | |
ad8e1ba5 AM |
7817 | else |
7818 | { | |
7819 | if (strcmp (input_section->output_section->name, | |
7820 | ".init") == 0 | |
7821 | || strcmp (input_section->output_section->name, | |
7822 | ".fini") == 0) | |
7823 | (*_bfd_error_handler) | |
7824 | (_("%s(%s+0x%lx): automatic multiple TOCs " | |
7825 | "not supported using your crt files; " | |
7826 | "recompile with -mminimal-toc or upgrade gcc"), | |
7827 | bfd_archive_filename (input_bfd), | |
7828 | input_section->name, | |
7829 | (long) rel->r_offset); | |
7830 | else | |
7831 | (*_bfd_error_handler) | |
7832 | (_("%s(%s+0x%lx): sibling call optimization to `%s' " | |
7833 | "does not allow automatic multiple TOCs; " | |
7834 | "recompile with -mminimal-toc or " | |
7835 | "-fno-optimize-sibling-calls, " | |
7836 | "or make `%s' extern"), | |
7837 | bfd_archive_filename (input_bfd), | |
7838 | input_section->name, | |
7839 | (long) rel->r_offset, | |
7840 | sym_name, | |
7841 | sym_name); | |
7842 | bfd_set_error (bfd_error_bad_value); | |
7843 | ret = FALSE; | |
7844 | } | |
721956f4 AM |
7845 | } |
7846 | ||
7847 | if (can_plt_call) | |
7848 | { | |
7849 | relocation = (stub_entry->stub_offset | |
7850 | + stub_entry->stub_sec->output_offset | |
7851 | + stub_entry->stub_sec->output_section->vma); | |
ad8e1ba5 AM |
7852 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7853 | unresolved_reloc = FALSE; | |
721956f4 | 7854 | } |
5bd4f169 | 7855 | } |
e86ce104 AM |
7856 | |
7857 | if (h != NULL | |
7858 | && h->root.type == bfd_link_hash_undefweak | |
721956f4 | 7859 | && relocation == 0 |
411e1bfb | 7860 | && rel->r_addend == 0) |
e86ce104 | 7861 | { |
721956f4 AM |
7862 | /* Tweak calls to undefined weak functions to point at a |
7863 | blr. We can thus call a weak function without first | |
7864 | checking whether the function is defined. We have a | |
7865 | blr at the end of .sfpr. */ | |
805fc799 | 7866 | BFD_ASSERT (htab->sfpr->_raw_size != 0); |
721956f4 AM |
7867 | relocation = (htab->sfpr->_raw_size - 4 |
7868 | + htab->sfpr->output_offset | |
7869 | + htab->sfpr->output_section->vma); | |
411e1bfb | 7870 | from = (rel->r_offset |
721956f4 AM |
7871 | + input_section->output_offset |
7872 | + input_section->output_section->vma); | |
805fc799 | 7873 | |
721956f4 AM |
7874 | /* But let's not be silly about it. If the blr isn't in |
7875 | reach, just go to the next instruction. */ | |
805fc799 AM |
7876 | if (relocation - from + (1 << 25) >= (1 << 26) |
7877 | || htab->sfpr->_raw_size == 0) | |
721956f4 | 7878 | relocation = from + 4; |
e86ce104 | 7879 | } |
65f38f15 AM |
7880 | break; |
7881 | } | |
5bd4f169 | 7882 | |
65f38f15 | 7883 | /* Set `addend'. */ |
411e1bfb AM |
7884 | tls_type = 0; |
7885 | addend = rel->r_addend; | |
65f38f15 AM |
7886 | switch (r_type) |
7887 | { | |
7888 | default: | |
7889 | (*_bfd_error_handler) | |
7890 | (_("%s: unknown relocation type %d for symbol %s"), | |
7891 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
5bd4f169 | 7892 | |
65f38f15 | 7893 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7894 | ret = FALSE; |
65f38f15 | 7895 | continue; |
5bd4f169 | 7896 | |
65f38f15 | 7897 | case R_PPC64_NONE: |
411e1bfb | 7898 | case R_PPC64_TLS: |
04c9666a AM |
7899 | case R_PPC64_GNU_VTINHERIT: |
7900 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 7901 | continue; |
5bd4f169 AM |
7902 | |
7903 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
7904 | address in the GOT as relocation value instead of the | |
411e1bfb | 7905 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 7906 | symbol and put the symbol value there. */ |
411e1bfb AM |
7907 | case R_PPC64_GOT_TLSGD16: |
7908 | case R_PPC64_GOT_TLSGD16_LO: | |
7909 | case R_PPC64_GOT_TLSGD16_HI: | |
7910 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 7911 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
7912 | goto dogot; |
7913 | ||
7914 | case R_PPC64_GOT_TLSLD16: | |
7915 | case R_PPC64_GOT_TLSLD16_LO: | |
7916 | case R_PPC64_GOT_TLSLD16_HI: | |
7917 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7918 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
7919 | goto dogot; |
7920 | ||
7921 | case R_PPC64_GOT_TPREL16_DS: | |
7922 | case R_PPC64_GOT_TPREL16_LO_DS: | |
7923 | case R_PPC64_GOT_TPREL16_HI: | |
7924 | case R_PPC64_GOT_TPREL16_HA: | |
7925 | tls_type = TLS_TLS | TLS_TPREL; | |
7926 | goto dogot; | |
7927 | ||
7928 | case R_PPC64_GOT_DTPREL16_DS: | |
7929 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
7930 | case R_PPC64_GOT_DTPREL16_HI: | |
7931 | case R_PPC64_GOT_DTPREL16_HA: | |
7932 | tls_type = TLS_TLS | TLS_DTPREL; | |
7933 | goto dogot; | |
7934 | ||
65f38f15 AM |
7935 | case R_PPC64_GOT16: |
7936 | case R_PPC64_GOT16_LO: | |
7937 | case R_PPC64_GOT16_HI: | |
7938 | case R_PPC64_GOT16_HA: | |
7939 | case R_PPC64_GOT16_DS: | |
7940 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 7941 | dogot: |
5bd4f169 AM |
7942 | { |
7943 | /* Relocation is to the entry for this symbol in the global | |
7944 | offset table. */ | |
e717da7e | 7945 | asection *got; |
d881513a | 7946 | bfd_vma *offp; |
5bd4f169 | 7947 | bfd_vma off; |
d881513a | 7948 | unsigned long indx = 0; |
65f38f15 | 7949 | |
d881513a AM |
7950 | if (tls_type == (TLS_TLS | TLS_LD) |
7951 | && (h == NULL | |
7952 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
e717da7e | 7953 | offp = &ppc64_tlsld_got (input_bfd)->offset; |
411e1bfb | 7954 | else |
5bd4f169 | 7955 | { |
d881513a | 7956 | struct got_entry *ent; |
5bd4f169 | 7957 | |
d881513a AM |
7958 | if (h != NULL) |
7959 | { | |
7960 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
f4656909 | 7961 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
d881513a | 7962 | || (info->shared |
586119b3 | 7963 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
d881513a AM |
7964 | /* This is actually a static link, or it is a |
7965 | -Bsymbolic link and the symbol is defined | |
7966 | locally, or the symbol was forced to be local | |
7967 | because of a version file. */ | |
7968 | ; | |
7969 | else | |
7970 | { | |
7971 | indx = h->dynindx; | |
7972 | unresolved_reloc = FALSE; | |
7973 | } | |
7974 | ent = h->got.glist; | |
7975 | } | |
411e1bfb | 7976 | else |
5bd4f169 | 7977 | { |
d881513a AM |
7978 | if (local_got_ents == NULL) |
7979 | abort (); | |
7980 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 7981 | } |
d881513a AM |
7982 | |
7983 | for (; ent != NULL; ent = ent->next) | |
7984 | if (ent->addend == rel->r_addend | |
e717da7e | 7985 | && ent->owner == input_bfd |
d881513a AM |
7986 | && ent->tls_type == tls_type) |
7987 | break; | |
7988 | if (ent == NULL) | |
7989 | abort (); | |
7990 | offp = &ent->got.offset; | |
5bd4f169 | 7991 | } |
411e1bfb | 7992 | |
e717da7e AM |
7993 | got = ppc64_elf_tdata (input_bfd)->got; |
7994 | if (got == NULL) | |
7995 | abort (); | |
7996 | ||
411e1bfb AM |
7997 | /* The offset must always be a multiple of 8. We use the |
7998 | least significant bit to record whether we have already | |
7999 | processed this entry. */ | |
d881513a | 8000 | off = *offp; |
411e1bfb AM |
8001 | if ((off & 1) != 0) |
8002 | off &= ~1; | |
5bd4f169 AM |
8003 | else |
8004 | { | |
411e1bfb AM |
8005 | /* Generate relocs for the dynamic linker, except in |
8006 | the case of TLSLD where we'll use one entry per | |
8007 | module. */ | |
e717da7e AM |
8008 | asection *relgot = ppc64_elf_tdata (input_bfd)->relgot; |
8009 | ||
d881513a | 8010 | *offp = off | 1; |
4e795f50 AM |
8011 | if ((info->shared || indx != 0) |
8012 | && (h == NULL | |
8013 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8014 | || h->root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 8015 | { |
e717da7e AM |
8016 | outrel.r_offset = (got->output_section->vma |
8017 | + got->output_offset | |
411e1bfb | 8018 | + off); |
81407a69 | 8019 | outrel.r_addend = rel->r_addend; |
d881513a | 8020 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 8021 | { |
411e1bfb | 8022 | outrel.r_addend = 0; |
e515b051 | 8023 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
8024 | if (tls_type == (TLS_TLS | TLS_GD)) |
8025 | { | |
e717da7e AM |
8026 | loc = relgot->contents; |
8027 | loc += (relgot->reloc_count++ | |
d881513a AM |
8028 | * sizeof (Elf64_External_Rela)); |
8029 | bfd_elf64_swap_reloca_out (output_bfd, | |
8030 | &outrel, loc); | |
e515b051 | 8031 | outrel.r_offset += 8; |
81407a69 | 8032 | outrel.r_addend = rel->r_addend; |
d881513a AM |
8033 | outrel.r_info |
8034 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 8035 | } |
411e1bfb | 8036 | } |
951fd09b | 8037 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 8038 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 8039 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
8040 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
8041 | else if (indx == 0) | |
81407a69 AM |
8042 | { |
8043 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
8044 | ||
8045 | /* Write the .got section contents for the sake | |
8046 | of prelink. */ | |
e717da7e | 8047 | loc = got->contents + off; |
23fbd6fa JJ |
8048 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
8049 | loc); | |
81407a69 | 8050 | } |
411e1bfb AM |
8051 | else |
8052 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
8053 | |
8054 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
8055 | { |
8056 | outrel.r_addend += relocation; | |
8057 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
8058 | outrel.r_addend -= htab->tls_sec->vma; | |
8059 | } | |
e717da7e AM |
8060 | loc = relgot->contents; |
8061 | loc += (relgot->reloc_count++ | |
411e1bfb AM |
8062 | * sizeof (Elf64_External_Rela)); |
8063 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
8064 | } | |
8065 | ||
ad8e1ba5 | 8066 | /* Init the .got section contents here if we're not |
81407a69 | 8067 | emitting a reloc. */ |
d881513a | 8068 | else |
411e1bfb | 8069 | { |
d881513a | 8070 | relocation += rel->r_addend; |
7b609f53 AM |
8071 | if (tls_type == (TLS_TLS | TLS_LD)) |
8072 | relocation = 1; | |
8073 | else if (tls_type != 0) | |
411e1bfb AM |
8074 | { |
8075 | relocation -= htab->tls_sec->vma + DTP_OFFSET; | |
7b609f53 | 8076 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 8077 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 8078 | |
7b609f53 AM |
8079 | if (tls_type == (TLS_TLS | TLS_GD)) |
8080 | { | |
8081 | bfd_put_64 (output_bfd, relocation, | |
e717da7e | 8082 | got->contents + off + 8); |
7b609f53 AM |
8083 | relocation = 1; |
8084 | } | |
411e1bfb | 8085 | } |
7b609f53 | 8086 | |
411e1bfb | 8087 | bfd_put_64 (output_bfd, relocation, |
e717da7e | 8088 | got->contents + off); |
5bd4f169 AM |
8089 | } |
8090 | } | |
8091 | ||
65f38f15 AM |
8092 | if (off >= (bfd_vma) -2) |
8093 | abort (); | |
8094 | ||
e717da7e | 8095 | relocation = got->output_offset + off; |
65f38f15 | 8096 | |
5bd4f169 | 8097 | /* TOC base (r2) is TOC start plus 0x8000. */ |
e717da7e | 8098 | addend = -TOC_BASE_OFF; |
5bd4f169 | 8099 | } |
65f38f15 AM |
8100 | break; |
8101 | ||
8102 | case R_PPC64_PLT16_HA: | |
8103 | case R_PPC64_PLT16_HI: | |
8104 | case R_PPC64_PLT16_LO: | |
8105 | case R_PPC64_PLT32: | |
8106 | case R_PPC64_PLT64: | |
8107 | /* Relocation is to the entry for this symbol in the | |
8108 | procedure linkage table. */ | |
8109 | ||
8110 | /* Resolve a PLT reloc against a local symbol directly, | |
8111 | without using the procedure linkage table. */ | |
8112 | if (h == NULL) | |
8113 | break; | |
8114 | ||
411e1bfb AM |
8115 | /* It's possible that we didn't make a PLT entry for this |
8116 | symbol. This happens when statically linking PIC code, | |
8117 | or when using -Bsymbolic. Go find a match if there is a | |
8118 | PLT entry. */ | |
4ce794b7 | 8119 | if (htab->plt != NULL) |
65f38f15 | 8120 | { |
411e1bfb AM |
8121 | struct plt_entry *ent; |
8122 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
8123 | if (ent->addend == rel->r_addend | |
8124 | && ent->plt.offset != (bfd_vma) -1) | |
8125 | { | |
4ce794b7 AM |
8126 | relocation = (htab->plt->output_section->vma |
8127 | + htab->plt->output_offset | |
411e1bfb AM |
8128 | + ent->plt.offset); |
8129 | unresolved_reloc = FALSE; | |
8130 | } | |
65f38f15 | 8131 | } |
65f38f15 | 8132 | break; |
5bd4f169 | 8133 | |
0b13192e AM |
8134 | case R_PPC64_TOC: |
8135 | /* Relocation value is TOC base. */ | |
8136 | relocation = TOCstart; | |
8137 | if (r_symndx == 0) | |
8138 | relocation += htab->stub_group[input_section->id].toc_off; | |
8139 | else if (sec != NULL && !unresolved_reloc) | |
8140 | relocation += htab->stub_group[sec->id].toc_off; | |
8141 | else | |
8142 | unresolved_reloc = TRUE; | |
8143 | goto dodyn2; | |
8144 | ||
5bd4f169 AM |
8145 | /* TOC16 relocs. We want the offset relative to the TOC base, |
8146 | which is the address of the start of the TOC plus 0x8000. | |
8147 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
8148 | in this order. */ | |
65f38f15 AM |
8149 | case R_PPC64_TOC16: |
8150 | case R_PPC64_TOC16_LO: | |
8151 | case R_PPC64_TOC16_HI: | |
8152 | case R_PPC64_TOC16_DS: | |
8153 | case R_PPC64_TOC16_LO_DS: | |
8154 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 8155 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
8156 | break; |
8157 | ||
8158 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
8159 | case R_PPC64_SECTOFF: |
8160 | case R_PPC64_SECTOFF_LO: | |
8161 | case R_PPC64_SECTOFF_HI: | |
8162 | case R_PPC64_SECTOFF_DS: | |
8163 | case R_PPC64_SECTOFF_LO_DS: | |
8164 | case R_PPC64_SECTOFF_HA: | |
4ce794b7 | 8165 | if (sec != NULL) |
65f38f15 | 8166 | addend -= sec->output_section->vma; |
5bd4f169 AM |
8167 | break; |
8168 | ||
721956f4 AM |
8169 | case R_PPC64_REL14: |
8170 | case R_PPC64_REL14_BRNTAKEN: | |
8171 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
8172 | case R_PPC64_REL24: |
8173 | break; | |
8174 | ||
411e1bfb AM |
8175 | case R_PPC64_TPREL16: |
8176 | case R_PPC64_TPREL16_LO: | |
8177 | case R_PPC64_TPREL16_HI: | |
8178 | case R_PPC64_TPREL16_HA: | |
8179 | case R_PPC64_TPREL16_DS: | |
8180 | case R_PPC64_TPREL16_LO_DS: | |
8181 | case R_PPC64_TPREL16_HIGHER: | |
8182 | case R_PPC64_TPREL16_HIGHERA: | |
8183 | case R_PPC64_TPREL16_HIGHEST: | |
8184 | case R_PPC64_TPREL16_HIGHESTA: | |
8185 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
8186 | if (info->shared) | |
8187 | /* The TPREL16 relocs shouldn't really be used in shared | |
8188 | libs as they will result in DT_TEXTREL being set, but | |
8189 | support them anyway. */ | |
8190 | goto dodyn; | |
8191 | break; | |
8192 | ||
8193 | case R_PPC64_DTPREL16: | |
8194 | case R_PPC64_DTPREL16_LO: | |
8195 | case R_PPC64_DTPREL16_HI: | |
8196 | case R_PPC64_DTPREL16_HA: | |
8197 | case R_PPC64_DTPREL16_DS: | |
8198 | case R_PPC64_DTPREL16_LO_DS: | |
8199 | case R_PPC64_DTPREL16_HIGHER: | |
8200 | case R_PPC64_DTPREL16_HIGHERA: | |
8201 | case R_PPC64_DTPREL16_HIGHEST: | |
8202 | case R_PPC64_DTPREL16_HIGHESTA: | |
8203 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
8204 | break; | |
8205 | ||
e515b051 AM |
8206 | case R_PPC64_DTPMOD64: |
8207 | relocation = 1; | |
8208 | addend = 0; | |
8209 | goto dodyn; | |
8210 | ||
411e1bfb AM |
8211 | case R_PPC64_TPREL64: |
8212 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
8213 | goto dodyn; | |
8214 | ||
8215 | case R_PPC64_DTPREL64: | |
8216 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
8217 | /* Fall thru */ | |
8218 | ||
65f38f15 AM |
8219 | /* Relocations that may need to be propagated if this is a |
8220 | dynamic object. */ | |
04c9666a | 8221 | case R_PPC64_REL30: |
65f38f15 AM |
8222 | case R_PPC64_REL32: |
8223 | case R_PPC64_REL64: | |
8224 | case R_PPC64_ADDR14: | |
8225 | case R_PPC64_ADDR14_BRNTAKEN: | |
8226 | case R_PPC64_ADDR14_BRTAKEN: | |
8227 | case R_PPC64_ADDR16: | |
8228 | case R_PPC64_ADDR16_DS: | |
8229 | case R_PPC64_ADDR16_HA: | |
8230 | case R_PPC64_ADDR16_HI: | |
8231 | case R_PPC64_ADDR16_HIGHER: | |
8232 | case R_PPC64_ADDR16_HIGHERA: | |
8233 | case R_PPC64_ADDR16_HIGHEST: | |
8234 | case R_PPC64_ADDR16_HIGHESTA: | |
8235 | case R_PPC64_ADDR16_LO: | |
8236 | case R_PPC64_ADDR16_LO_DS: | |
8237 | case R_PPC64_ADDR24: | |
65f38f15 AM |
8238 | case R_PPC64_ADDR32: |
8239 | case R_PPC64_ADDR64: | |
8240 | case R_PPC64_UADDR16: | |
8241 | case R_PPC64_UADDR32: | |
8242 | case R_PPC64_UADDR64: | |
ec338859 AM |
8243 | /* r_symndx will be zero only for relocs against symbols |
8244 | from removed linkonce sections, or sections discarded by | |
8245 | a linker script. */ | |
411e1bfb | 8246 | dodyn: |
5d1634d7 AM |
8247 | if (r_symndx == 0) |
8248 | break; | |
8249 | /* Fall thru. */ | |
8250 | ||
0b13192e | 8251 | dodyn2: |
5d1634d7 | 8252 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
8253 | break; |
8254 | ||
41bd81ab AM |
8255 | if (NO_OPD_RELOCS && is_opd) |
8256 | break; | |
8257 | ||
65f38f15 | 8258 | if ((info->shared |
4e795f50 AM |
8259 | && (h == NULL |
8260 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8261 | || h->root.type != bfd_link_hash_undefweak) | |
411e1bfb | 8262 | && (MUST_BE_DYN_RELOC (r_type) |
f6c52c13 | 8263 | || !SYMBOL_CALLS_LOCAL (info, h))) |
f4656909 AM |
8264 | || (ELIMINATE_COPY_RELOCS |
8265 | && !info->shared | |
65f38f15 AM |
8266 | && h != NULL |
8267 | && h->dynindx != -1 | |
8268 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
8269 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
8270 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
65f38f15 AM |
8271 | { |
8272 | Elf_Internal_Rela outrel; | |
b34976b6 | 8273 | bfd_boolean skip, relocate; |
65f38f15 | 8274 | asection *sreloc; |
947216bf | 8275 | bfd_byte *loc; |
1cf1f670 | 8276 | bfd_vma out_off; |
65f38f15 AM |
8277 | |
8278 | /* When generating a dynamic object, these relocations | |
8279 | are copied into the output file to be resolved at run | |
8280 | time. */ | |
8281 | ||
b34976b6 AM |
8282 | skip = FALSE; |
8283 | relocate = FALSE; | |
65f38f15 | 8284 | |
1cf1f670 AM |
8285 | out_off = _bfd_elf_section_offset (output_bfd, info, |
8286 | input_section, rel->r_offset); | |
8287 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 8288 | skip = TRUE; |
1cf1f670 | 8289 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 8290 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
8291 | out_off += (input_section->output_section->vma |
8292 | + input_section->output_offset); | |
8293 | outrel.r_offset = out_off; | |
411e1bfb | 8294 | outrel.r_addend = rel->r_addend; |
65f38f15 | 8295 | |
1cf1f670 AM |
8296 | /* Optimize unaligned reloc use. */ |
8297 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
8298 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
8299 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
8300 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
8301 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
8302 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
8303 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
8304 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
8305 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
8306 | ||
65f38f15 | 8307 | if (skip) |
0bb2d96a | 8308 | memset (&outrel, 0, sizeof outrel); |
f6c52c13 | 8309 | else if (!SYMBOL_REFERENCES_LOCAL (info, h) |
0b13192e AM |
8310 | && !is_opd |
8311 | && r_type != R_PPC64_TOC) | |
0bb2d96a | 8312 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); |
65f38f15 AM |
8313 | else |
8314 | { | |
41bd81ab AM |
8315 | /* This symbol is local, or marked to become local, |
8316 | or this is an opd section reloc which must point | |
8317 | at a local function. */ | |
65f38f15 | 8318 | outrel.r_addend += relocation; |
e86ce104 | 8319 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 8320 | { |
3fad3c7c | 8321 | if (is_opd && h != NULL) |
afbe61cf AM |
8322 | { |
8323 | /* Lie about opd entries. This case occurs | |
8324 | when building shared libraries and we | |
8325 | reference a function in another shared | |
3fad3c7c AM |
8326 | lib. The same thing happens for a weak |
8327 | definition in an application that's | |
8328 | overridden by a strong definition in a | |
8329 | shared lib. (I believe this is a generic | |
8330 | bug in binutils handling of weak syms.) | |
8331 | In these cases we won't use the opd | |
1e2f5b6e | 8332 | entry in this lib. */ |
b34976b6 | 8333 | unresolved_reloc = FALSE; |
afbe61cf | 8334 | } |
65f38f15 | 8335 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
8336 | |
8337 | /* We need to relocate .opd contents for ld.so. | |
8338 | Prelink also wants simple and consistent rules | |
8339 | for relocs. This make all RELATIVE relocs have | |
8340 | *r_offset equal to r_addend. */ | |
8341 | relocate = TRUE; | |
65f38f15 AM |
8342 | } |
8343 | else | |
8344 | { | |
8345 | long indx = 0; | |
8346 | ||
41bd81ab | 8347 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
8348 | ; |
8349 | else if (sec == NULL || sec->owner == NULL) | |
8350 | { | |
8351 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8352 | return FALSE; |
65f38f15 AM |
8353 | } |
8354 | else | |
8355 | { | |
8356 | asection *osec; | |
8357 | ||
8358 | osec = sec->output_section; | |
8359 | indx = elf_section_data (osec)->dynindx; | |
8360 | ||
8361 | /* We are turning this relocation into one | |
8362 | against a section symbol, so subtract out | |
8363 | the output section's address but not the | |
8364 | offset of the input section in the output | |
8365 | section. */ | |
8366 | outrel.r_addend -= osec->vma; | |
8367 | } | |
8368 | ||
8369 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
8370 | } | |
8371 | } | |
8372 | ||
8373 | sreloc = elf_section_data (input_section)->sreloc; | |
8374 | if (sreloc == NULL) | |
8375 | abort (); | |
8376 | ||
947216bf AM |
8377 | loc = sreloc->contents; |
8378 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
8379 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
8380 | ||
8381 | /* If this reloc is against an external symbol, it will | |
8382 | be computed at runtime, so there's no need to do | |
81407a69 AM |
8383 | anything now. However, for the sake of prelink ensure |
8384 | that the section contents are a known value. */ | |
65f38f15 | 8385 | if (! relocate) |
81407a69 AM |
8386 | { |
8387 | unresolved_reloc = FALSE; | |
8388 | /* The value chosen here is quite arbitrary as ld.so | |
8389 | ignores section contents except for the special | |
8390 | case of .opd where the contents might be accessed | |
8391 | before relocation. Choose zero, as that won't | |
8392 | cause reloc overflow. */ | |
8393 | relocation = 0; | |
8394 | addend = 0; | |
8395 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
8396 | to improve backward compatibility with older | |
8397 | versions of ld. */ | |
8398 | if (r_type == R_PPC64_ADDR64) | |
8399 | addend = outrel.r_addend; | |
8400 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
4ce794b7 | 8401 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
000732f7 AM |
8402 | addend = (input_section->output_section->vma |
8403 | + input_section->output_offset | |
8404 | + rel->r_offset); | |
81407a69 | 8405 | } |
65f38f15 | 8406 | } |
5bd4f169 AM |
8407 | break; |
8408 | ||
65f38f15 AM |
8409 | case R_PPC64_COPY: |
8410 | case R_PPC64_GLOB_DAT: | |
8411 | case R_PPC64_JMP_SLOT: | |
8412 | case R_PPC64_RELATIVE: | |
8413 | /* We shouldn't ever see these dynamic relocs in relocatable | |
8414 | files. */ | |
ae9a127f | 8415 | /* Fall through. */ |
65f38f15 AM |
8416 | |
8417 | case R_PPC64_PLTGOT16: | |
8418 | case R_PPC64_PLTGOT16_DS: | |
8419 | case R_PPC64_PLTGOT16_HA: | |
8420 | case R_PPC64_PLTGOT16_HI: | |
8421 | case R_PPC64_PLTGOT16_LO: | |
8422 | case R_PPC64_PLTGOT16_LO_DS: | |
8423 | case R_PPC64_PLTREL32: | |
8424 | case R_PPC64_PLTREL64: | |
8425 | /* These ones haven't been implemented yet. */ | |
8426 | ||
8427 | (*_bfd_error_handler) | |
7b609f53 | 8428 | (_("%s: relocation %s is not supported for symbol %s."), |
65f38f15 | 8429 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8430 | ppc64_elf_howto_table[r_type]->name, sym_name); |
5bd4f169 AM |
8431 | |
8432 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8433 | ret = FALSE; |
5bd4f169 | 8434 | continue; |
65f38f15 | 8435 | } |
5bd4f169 | 8436 | |
65f38f15 AM |
8437 | /* Do any further special processing. */ |
8438 | switch (r_type) | |
8439 | { | |
8440 | default: | |
8441 | break; | |
8442 | ||
8443 | case R_PPC64_ADDR16_HA: | |
8444 | case R_PPC64_ADDR16_HIGHERA: | |
8445 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
8446 | case R_PPC64_GOT16_HA: |
8447 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
8448 | case R_PPC64_PLT16_HA: |
8449 | case R_PPC64_TOC16_HA: | |
8450 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
8451 | case R_PPC64_TPREL16_HA: |
8452 | case R_PPC64_DTPREL16_HA: | |
8453 | case R_PPC64_GOT_TLSGD16_HA: | |
8454 | case R_PPC64_GOT_TLSLD16_HA: | |
8455 | case R_PPC64_GOT_TPREL16_HA: | |
8456 | case R_PPC64_GOT_DTPREL16_HA: | |
8457 | case R_PPC64_TPREL16_HIGHER: | |
8458 | case R_PPC64_TPREL16_HIGHERA: | |
8459 | case R_PPC64_TPREL16_HIGHEST: | |
8460 | case R_PPC64_TPREL16_HIGHESTA: | |
8461 | case R_PPC64_DTPREL16_HIGHER: | |
8462 | case R_PPC64_DTPREL16_HIGHERA: | |
8463 | case R_PPC64_DTPREL16_HIGHEST: | |
8464 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
8465 | /* It's just possible that this symbol is a weak symbol |
8466 | that's not actually defined anywhere. In that case, | |
8467 | 'sec' would be NULL, and we should leave the symbol | |
8468 | alone (it will be set to zero elsewhere in the link). */ | |
8469 | if (sec != NULL) | |
e515b051 AM |
8470 | /* Add 0x10000 if sign bit in 0:15 is set. |
8471 | Bits 0:15 are not used. */ | |
8472 | addend += 0x8000; | |
65f38f15 AM |
8473 | break; |
8474 | ||
8475 | case R_PPC64_ADDR16_DS: | |
8476 | case R_PPC64_ADDR16_LO_DS: | |
8477 | case R_PPC64_GOT16_DS: | |
8478 | case R_PPC64_GOT16_LO_DS: | |
8479 | case R_PPC64_PLT16_LO_DS: | |
8480 | case R_PPC64_SECTOFF_DS: | |
8481 | case R_PPC64_SECTOFF_LO_DS: | |
8482 | case R_PPC64_TOC16_DS: | |
8483 | case R_PPC64_TOC16_LO_DS: | |
8484 | case R_PPC64_PLTGOT16_DS: | |
8485 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
8486 | case R_PPC64_GOT_TPREL16_DS: |
8487 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8488 | case R_PPC64_GOT_DTPREL16_DS: | |
8489 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8490 | case R_PPC64_TPREL16_DS: | |
8491 | case R_PPC64_TPREL16_LO_DS: | |
8492 | case R_PPC64_DTPREL16_DS: | |
8493 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
8494 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
8495 | mask = 3; | |
8496 | /* If this reloc is against an lq insn, then the value must be | |
8497 | a multiple of 16. This is somewhat of a hack, but the | |
8498 | "correct" way to do this by defining _DQ forms of all the | |
8499 | _DS relocs bloats all reloc switches in this file. It | |
8500 | doesn't seem to make much sense to use any of these relocs | |
8501 | in data, so testing the insn should be safe. */ | |
494dac0c | 8502 | if ((insn & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
8503 | mask = 15; |
8504 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
8505 | { |
8506 | (*_bfd_error_handler) | |
adadcc0c | 8507 | (_("%s: error: relocation %s not a multiple of %d"), |
65f38f15 | 8508 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8509 | ppc64_elf_howto_table[r_type]->name, |
adadcc0c | 8510 | mask + 1); |
65f38f15 | 8511 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8512 | ret = FALSE; |
65f38f15 AM |
8513 | continue; |
8514 | } | |
8515 | break; | |
721956f4 AM |
8516 | |
8517 | case R_PPC64_REL14: | |
8518 | case R_PPC64_REL14_BRNTAKEN: | |
8519 | case R_PPC64_REL14_BRTAKEN: | |
8520 | max_br_offset = 1 << 15; | |
8521 | goto branch_check; | |
8522 | ||
8523 | case R_PPC64_REL24: | |
8524 | max_br_offset = 1 << 25; | |
8525 | ||
8526 | branch_check: | |
ad8e1ba5 AM |
8527 | /* If the branch is out of reach or the TOC register needs |
8528 | adjusting, then redirect the call to the local stub for | |
8529 | this function. */ | |
411e1bfb | 8530 | from = (rel->r_offset |
721956f4 AM |
8531 | + input_section->output_offset |
8532 | + input_section->output_section->vma); | |
ad8e1ba5 AM |
8533 | if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset |
8534 | || (sec != NULL | |
8535 | && sec->output_section != NULL | |
8f3bab57 | 8536 | && sec->id <= htab->top_id |
ad8e1ba5 AM |
8537 | && (htab->stub_group[sec->id].toc_off |
8538 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 AM |
8539 | && (stub_entry = ppc_get_stub_entry (input_section, sec, h, |
8540 | rel, htab)) != NULL) | |
8541 | { | |
8542 | /* Munge up the value and addend so that we call the stub | |
8543 | rather than the procedure directly. */ | |
8544 | relocation = (stub_entry->stub_offset | |
8545 | + stub_entry->stub_sec->output_offset | |
8546 | + stub_entry->stub_sec->output_section->vma); | |
8547 | addend = 0; | |
8548 | } | |
8549 | break; | |
5bd4f169 AM |
8550 | } |
8551 | ||
239e1f3a AM |
8552 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
8553 | because such sections are not SEC_ALLOC and thus ld.so will | |
8554 | not process them. */ | |
65f38f15 | 8555 | if (unresolved_reloc |
239e1f3a | 8556 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
65f38f15 | 8557 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
9c07fe7c AM |
8558 | { |
8559 | (*_bfd_error_handler) | |
7b609f53 | 8560 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
9c07fe7c AM |
8561 | bfd_archive_filename (input_bfd), |
8562 | bfd_get_section_name (input_bfd, input_section), | |
8563 | (long) rel->r_offset, | |
7b609f53 | 8564 | ppc64_elf_howto_table[(int) r_type]->name, |
9c07fe7c | 8565 | h->root.root.string); |
b34976b6 | 8566 | ret = FALSE; |
9c07fe7c | 8567 | } |
5bd4f169 | 8568 | |
65f38f15 | 8569 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
8570 | input_bfd, |
8571 | input_section, | |
8572 | contents, | |
411e1bfb | 8573 | rel->r_offset, |
5bd4f169 AM |
8574 | relocation, |
8575 | addend); | |
8576 | ||
ef60b7ff | 8577 | if (r != bfd_reloc_ok) |
5bd4f169 | 8578 | { |
cd27b276 AM |
8579 | if (sym_name == NULL) |
8580 | sym_name = "(null)"; | |
8581 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 8582 | { |
cd27b276 AM |
8583 | if (warned) |
8584 | continue; | |
8585 | if (h != NULL | |
8586 | && h->root.type == bfd_link_hash_undefweak | |
4ce794b7 | 8587 | && ppc64_elf_howto_table[r_type]->pc_relative) |
5bd4f169 AM |
8588 | { |
8589 | /* Assume this is a call protected by other code that | |
8590 | detects the symbol is undefined. If this is the case, | |
8591 | we can safely ignore the overflow. If not, the | |
8592 | program is hosed anyway, and a little warning isn't | |
8593 | going to help. */ | |
8594 | ||
8595 | continue; | |
8596 | } | |
8597 | ||
ef60b7ff | 8598 | if (!((*info->callbacks->reloc_overflow) |
4ce794b7 | 8599 | (info, sym_name, ppc64_elf_howto_table[r_type]->name, |
411e1bfb | 8600 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 8601 | return FALSE; |
ef60b7ff AM |
8602 | } |
8603 | else | |
8604 | { | |
8605 | (*_bfd_error_handler) | |
7b609f53 | 8606 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
ef60b7ff AM |
8607 | bfd_archive_filename (input_bfd), |
8608 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 | 8609 | (long) rel->r_offset, |
4ce794b7 | 8610 | ppc64_elf_howto_table[r_type]->name, |
7b609f53 AM |
8611 | sym_name, |
8612 | (int) r); | |
b34976b6 | 8613 | ret = FALSE; |
ef60b7ff | 8614 | } |
5bd4f169 | 8615 | } |
5bd4f169 AM |
8616 | } |
8617 | ||
5bd4f169 AM |
8618 | return ret; |
8619 | } | |
8620 | ||
8621 | /* Finish up dynamic symbol handling. We set the contents of various | |
8622 | dynamic sections here. */ | |
8623 | ||
b34976b6 | 8624 | static bfd_boolean |
4ce794b7 AM |
8625 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
8626 | struct bfd_link_info *info, | |
8627 | struct elf_link_hash_entry *h, | |
8628 | Elf_Internal_Sym *sym) | |
5bd4f169 | 8629 | { |
65f38f15 | 8630 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
8631 | bfd *dynobj; |
8632 | ||
65f38f15 AM |
8633 | htab = ppc_hash_table (info); |
8634 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 8635 | |
411e1bfb | 8636 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) |
5bd4f169 | 8637 | { |
411e1bfb | 8638 | struct plt_entry *ent; |
65f38f15 | 8639 | Elf_Internal_Rela rela; |
947216bf | 8640 | bfd_byte *loc; |
5bd4f169 | 8641 | |
411e1bfb AM |
8642 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
8643 | if (ent->plt.offset != (bfd_vma) -1) | |
8644 | { | |
8645 | /* This symbol has an entry in the procedure linkage | |
8646 | table. Set it up. */ | |
5bd4f169 | 8647 | |
4ce794b7 AM |
8648 | if (htab->plt == NULL |
8649 | || htab->relplt == NULL | |
8650 | || htab->glink == NULL) | |
411e1bfb | 8651 | abort (); |
5bd4f169 | 8652 | |
411e1bfb AM |
8653 | /* Create a JMP_SLOT reloc to inform the dynamic linker to |
8654 | fill in the PLT entry. */ | |
4ce794b7 AM |
8655 | rela.r_offset = (htab->plt->output_section->vma |
8656 | + htab->plt->output_offset | |
411e1bfb AM |
8657 | + ent->plt.offset); |
8658 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
8659 | rela.r_addend = ent->addend; | |
5bd4f169 | 8660 | |
4ce794b7 | 8661 | loc = htab->relplt->contents; |
411e1bfb AM |
8662 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE |
8663 | * sizeof (Elf64_External_Rela)); | |
8664 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
8665 | } | |
5bd4f169 AM |
8666 | } |
8667 | ||
8668 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
8669 | { | |
5bd4f169 | 8670 | Elf_Internal_Rela rela; |
947216bf | 8671 | bfd_byte *loc; |
5bd4f169 | 8672 | |
65f38f15 | 8673 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 8674 | |
65f38f15 AM |
8675 | if (h->dynindx == -1 |
8676 | || (h->root.type != bfd_link_hash_defined | |
8677 | && h->root.type != bfd_link_hash_defweak) | |
4ce794b7 | 8678 | || htab->relbss == NULL) |
65f38f15 | 8679 | abort (); |
5bd4f169 AM |
8680 | |
8681 | rela.r_offset = (h->root.u.def.value | |
8682 | + h->root.u.def.section->output_section->vma | |
8683 | + h->root.u.def.section->output_offset); | |
8684 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
8685 | rela.r_addend = 0; | |
4ce794b7 AM |
8686 | loc = htab->relbss->contents; |
8687 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 8688 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
8689 | } |
8690 | ||
5bd4f169 AM |
8691 | /* Mark some specially defined symbols as absolute. */ |
8692 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
8693 | sym->st_shndx = SHN_ABS; | |
8694 | ||
b34976b6 | 8695 | return TRUE; |
5bd4f169 AM |
8696 | } |
8697 | ||
65f38f15 AM |
8698 | /* Used to decide how to sort relocs in an optimal manner for the |
8699 | dynamic linker, before writing them out. */ | |
8700 | ||
8701 | static enum elf_reloc_type_class | |
4ce794b7 | 8702 | ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
65f38f15 | 8703 | { |
04c9666a | 8704 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 8705 | |
4ce794b7 | 8706 | r_type = ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 8707 | switch (r_type) |
65f38f15 AM |
8708 | { |
8709 | case R_PPC64_RELATIVE: | |
8710 | return reloc_class_relative; | |
8711 | case R_PPC64_JMP_SLOT: | |
8712 | return reloc_class_plt; | |
8713 | case R_PPC64_COPY: | |
8714 | return reloc_class_copy; | |
8715 | default: | |
8716 | return reloc_class_normal; | |
8717 | } | |
8718 | } | |
8719 | ||
5bd4f169 AM |
8720 | /* Finish up the dynamic sections. */ |
8721 | ||
b34976b6 | 8722 | static bfd_boolean |
4ce794b7 AM |
8723 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
8724 | struct bfd_link_info *info) | |
5bd4f169 | 8725 | { |
65f38f15 AM |
8726 | struct ppc_link_hash_table *htab; |
8727 | bfd *dynobj; | |
5bd4f169 | 8728 | asection *sdyn; |
5bd4f169 | 8729 | |
65f38f15 AM |
8730 | htab = ppc_hash_table (info); |
8731 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
8732 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
8733 | ||
65f38f15 | 8734 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 8735 | { |
5bd4f169 AM |
8736 | Elf64_External_Dyn *dyncon, *dynconend; |
8737 | ||
4ce794b7 | 8738 | if (sdyn == NULL || htab->got == NULL) |
65f38f15 | 8739 | abort (); |
5bd4f169 AM |
8740 | |
8741 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
8742 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
8743 | for (; dyncon < dynconend; dyncon++) | |
8744 | { | |
8745 | Elf_Internal_Dyn dyn; | |
19397422 | 8746 | asection *s; |
5bd4f169 AM |
8747 | |
8748 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
8749 | ||
8750 | switch (dyn.d_tag) | |
8751 | { | |
65f38f15 AM |
8752 | default: |
8753 | continue; | |
5bd4f169 | 8754 | |
5d1634d7 | 8755 | case DT_PPC64_GLINK: |
4ce794b7 | 8756 | s = htab->glink; |
6348e046 | 8757 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
ad8e1ba5 AM |
8758 | /* We stupidly defined DT_PPC64_GLINK to be the start |
8759 | of glink rather than the first entry point, which is | |
8760 | what ld.so needs, and now have a bigger stub to | |
8761 | support automatic multiple TOCs. */ | |
8762 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
8763 | break; |
8764 | ||
19397422 AM |
8765 | case DT_PPC64_OPD: |
8766 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8767 | if (s == NULL) |
8768 | continue; | |
8769 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
8770 | break; |
8771 | ||
8772 | case DT_PPC64_OPDSZ: | |
8773 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8774 | if (s == NULL) |
8775 | continue; | |
8776 | dyn.d_un.d_val = s->_raw_size; | |
19397422 AM |
8777 | break; |
8778 | ||
65f38f15 | 8779 | case DT_PLTGOT: |
4ce794b7 | 8780 | s = htab->plt; |
6348e046 | 8781 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 AM |
8782 | break; |
8783 | ||
8784 | case DT_JMPREL: | |
4ce794b7 | 8785 | s = htab->relplt; |
6348e046 | 8786 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 | 8787 | break; |
5bd4f169 | 8788 | |
65f38f15 | 8789 | case DT_PLTRELSZ: |
4ce794b7 | 8790 | dyn.d_un.d_val = htab->relplt->_raw_size; |
5d1634d7 AM |
8791 | break; |
8792 | ||
8793 | case DT_RELASZ: | |
8794 | /* Don't count procedure linkage table relocs in the | |
8795 | overall reloc count. */ | |
4ce794b7 | 8796 | s = htab->relplt; |
6348e046 AM |
8797 | if (s == NULL) |
8798 | continue; | |
8799 | dyn.d_un.d_val -= s->_raw_size; | |
8800 | break; | |
8801 | ||
8802 | case DT_RELA: | |
8803 | /* We may not be using the standard ELF linker script. | |
8804 | If .rela.plt is the first .rela section, we adjust | |
8805 | DT_RELA to not include it. */ | |
4ce794b7 | 8806 | s = htab->relplt; |
6348e046 AM |
8807 | if (s == NULL) |
8808 | continue; | |
8809 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
8810 | continue; | |
8811 | dyn.d_un.d_ptr += s->_raw_size; | |
65f38f15 | 8812 | break; |
5bd4f169 | 8813 | } |
5bd4f169 | 8814 | |
65f38f15 | 8815 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 8816 | } |
5bd4f169 AM |
8817 | } |
8818 | ||
4ce794b7 | 8819 | if (htab->got != NULL && htab->got->_raw_size != 0) |
5d1634d7 AM |
8820 | { |
8821 | /* Fill in the first entry in the global offset table. | |
8822 | We use it to hold the link-time TOCbase. */ | |
8823 | bfd_put_64 (output_bfd, | |
60ee0d4a | 8824 | elf_gp (output_bfd) + TOC_BASE_OFF, |
4ce794b7 | 8825 | htab->got->contents); |
5d1634d7 AM |
8826 | |
8827 | /* Set .got entry size. */ | |
4ce794b7 | 8828 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
5d1634d7 AM |
8829 | } |
8830 | ||
4ce794b7 | 8831 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5d1634d7 AM |
8832 | { |
8833 | /* Set .plt entry size. */ | |
4ce794b7 | 8834 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
5d1634d7 AM |
8835 | = PLT_ENTRY_SIZE; |
8836 | } | |
8837 | ||
e717da7e AM |
8838 | /* We need to handle writing out multiple GOT sections ourselves, |
8839 | since we didn't add them to DYNOBJ. */ | |
8840 | while ((dynobj = dynobj->link_next) != NULL) | |
8841 | { | |
8842 | asection *s; | |
8843 | s = ppc64_elf_tdata (dynobj)->got; | |
8844 | if (s != NULL | |
8845 | && s->_raw_size != 0 | |
8846 | && s->output_section != bfd_abs_section_ptr | |
8847 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
8848 | s->contents, s->output_offset, | |
8849 | s->_raw_size)) | |
8850 | return FALSE; | |
8851 | s = ppc64_elf_tdata (dynobj)->relgot; | |
8852 | if (s != NULL | |
8853 | && s->_raw_size != 0 | |
8854 | && s->output_section != bfd_abs_section_ptr | |
8855 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
8856 | s->contents, s->output_offset, | |
8857 | s->_raw_size)) | |
8858 | return FALSE; | |
8859 | } | |
f6c52c13 | 8860 | |
b34976b6 | 8861 | return TRUE; |
5bd4f169 AM |
8862 | } |
8863 | ||
5bd4f169 | 8864 | #include "elf64-target.h" |