Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
b2a8e766 AM |
2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004 |
3 | Free Software Foundation, Inc. | |
5bd4f169 AM |
4 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
5 | based on elf32-ppc.c by Ian Lance Taylor. | |
d37c89e5 | 6 | Largely rewritten by Alan Modra <amodra@bigpond.net.au> |
5bd4f169 | 7 | |
ae9a127f | 8 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 9 | |
ae9a127f NC |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
5bd4f169 | 14 | |
ae9a127f NC |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
5bd4f169 | 19 | |
4ce794b7 AM |
20 | You should have received a copy of the GNU General Public License along |
21 | with this program; if not, write to the Free Software Foundation, Inc., | |
22 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
5bd4f169 | 23 | |
4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
5bd4f169 AM |
27 | |
28 | #include "bfd.h" | |
29 | #include "sysdep.h" | |
30 | #include "bfdlink.h" | |
31 | #include "libbfd.h" | |
32 | #include "elf-bfd.h" | |
04c9666a | 33 | #include "elf/ppc64.h" |
5d1634d7 | 34 | #include "elf64-ppc.h" |
5bd4f169 | 35 | |
805fc799 | 36 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
4ce794b7 | 37 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 40 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
4ce794b7 | 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5bd4f169 AM |
52 | |
53 | ||
ad8e1ba5 AM |
54 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
55 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
56 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
57 | #define TARGET_BIG_NAME "elf64-powerpc" | |
58 | #define ELF_ARCH bfd_arch_powerpc | |
59 | #define ELF_MACHINE_CODE EM_PPC64 | |
60 | #define ELF_MAXPAGESIZE 0x10000 | |
61 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
62 | ||
63 | #define elf_backend_want_got_sym 0 | |
64 | #define elf_backend_want_plt_sym 0 | |
65 | #define elf_backend_plt_alignment 3 | |
66 | #define elf_backend_plt_not_loaded 1 | |
67 | #define elf_backend_got_symbol_offset 0 | |
68 | #define elf_backend_got_header_size 8 | |
ad8e1ba5 AM |
69 | #define elf_backend_can_gc_sections 1 |
70 | #define elf_backend_can_refcount 1 | |
71 | #define elf_backend_rela_normal 1 | |
72 | ||
e717da7e | 73 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
ad8e1ba5 AM |
74 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
75 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
76 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
77 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
78 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
79 | ||
80 | #define elf_backend_object_p ppc64_elf_object_p | |
d37c89e5 AM |
81 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
82 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
ad8e1ba5 AM |
83 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
84 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
85 | #define elf_backend_check_relocs ppc64_elf_check_relocs | |
86 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook | |
87 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
88 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
89 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
90 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
91 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
92 | #define elf_backend_relocate_section ppc64_elf_relocate_section | |
93 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
94 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
95 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
754021d0 | 96 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
2f89ff8d | 97 | #define elf_backend_special_sections ppc64_elf_special_sections |
ad8e1ba5 | 98 | |
5bd4f169 AM |
99 | /* The name of the dynamic interpreter. This is put in the .interp |
100 | section. */ | |
101 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
102 | ||
103 | /* The size in bytes of an entry in the procedure linkage table. */ | |
104 | #define PLT_ENTRY_SIZE 24 | |
105 | ||
106 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 107 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
108 | |
109 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
110 | #define TOC_BASE_OFF 0x8000 |
111 | ||
112 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
113 | #define TP_OFFSET 0x7000 | |
114 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 115 | |
ad8e1ba5 AM |
116 | /* .plt call stub instructions. The normal stub is like this, but |
117 | sometimes the .plt entry crosses a 64k boundary and we need to | |
118 | insert an addis to adjust r12. */ | |
119 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
120 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
121 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
122 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
123 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
124 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
125 | /* ld %r11,xxx+16@l(%r12) */ | |
126 | #define BCTR 0x4e800420 /* bctr */ | |
127 | ||
5d1634d7 | 128 | |
ad8e1ba5 AM |
129 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
130 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
131 | ||
132 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
133 | ||
134 | /* glink call stub instructions. We enter with the index in R0, and the | |
135 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
136 | #define GLINK_CALL_STUB_SIZE (16*4) | |
137 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
138 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
139 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
140 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
141 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
142 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
143 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
144 | /* sub %r12,%r12,%r11 */ | |
145 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
146 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
147 | /* ld %r11,xxx@l(%r12) */ | |
148 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
149 | /* ld %r2,8(%r12) */ | |
150 | /* mtctr %r11 */ | |
151 | /* ld %r11,16(%r12) */ | |
152 | /* bctr */ | |
5d1634d7 AM |
153 | |
154 | /* Pad with this. */ | |
155 | #define NOP 0x60000000 | |
156 | ||
721956f4 AM |
157 | /* Some other nops. */ |
158 | #define CROR_151515 0x4def7b82 | |
159 | #define CROR_313131 0x4ffffb82 | |
160 | ||
cedb70c5 | 161 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
162 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
163 | #define B_DOT 0x48000000 /* b . */ | |
164 | ||
165 | /* After that, we need two instructions to load the index, followed by | |
166 | a branch. */ | |
167 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 168 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 169 | |
82bd7b59 AM |
170 | /* Instructions to save and restore floating point regs. */ |
171 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ | |
172 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
173 | #define BLR 0x4e800020 /* blr */ | |
174 | ||
41bd81ab AM |
175 | /* Since .opd is an array of descriptors and each entry will end up |
176 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
177 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 178 | relocate .opd without reloc entries. */ |
41bd81ab AM |
179 | #ifndef NO_OPD_RELOCS |
180 | #define NO_OPD_RELOCS 0 | |
181 | #endif | |
5bd4f169 | 182 | \f |
f5e87a1d | 183 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 184 | |
5bd4f169 | 185 | /* Relocation HOWTO's. */ |
04c9666a | 186 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
187 | |
188 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
189 | /* This reloc does nothing. */ | |
190 | HOWTO (R_PPC64_NONE, /* type */ | |
191 | 0, /* rightshift */ | |
411e1bfb AM |
192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
193 | 32, /* bitsize */ | |
b34976b6 | 194 | FALSE, /* pc_relative */ |
5bd4f169 | 195 | 0, /* bitpos */ |
f5e87a1d | 196 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
197 | bfd_elf_generic_reloc, /* special_function */ |
198 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 199 | FALSE, /* partial_inplace */ |
d006db6c | 200 | 0, /* src_mask */ |
5bd4f169 | 201 | 0, /* dst_mask */ |
b34976b6 | 202 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
203 | |
204 | /* A standard 32 bit relocation. */ | |
205 | HOWTO (R_PPC64_ADDR32, /* type */ | |
206 | 0, /* rightshift */ | |
207 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
208 | 32, /* bitsize */ | |
b34976b6 | 209 | FALSE, /* pc_relative */ |
5bd4f169 AM |
210 | 0, /* bitpos */ |
211 | complain_overflow_bitfield, /* complain_on_overflow */ | |
212 | bfd_elf_generic_reloc, /* special_function */ | |
213 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 214 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
215 | 0, /* src_mask */ |
216 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 217 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
218 | |
219 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
220 | FIXME: we don't check that, we just clear them. */ | |
221 | HOWTO (R_PPC64_ADDR24, /* type */ | |
222 | 0, /* rightshift */ | |
223 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
224 | 26, /* bitsize */ | |
b34976b6 | 225 | FALSE, /* pc_relative */ |
5bd4f169 AM |
226 | 0, /* bitpos */ |
227 | complain_overflow_bitfield, /* complain_on_overflow */ | |
228 | bfd_elf_generic_reloc, /* special_function */ | |
229 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 230 | FALSE, /* partial_inplace */ |
d006db6c | 231 | 0, /* src_mask */ |
f5e87a1d | 232 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 233 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
234 | |
235 | /* A standard 16 bit relocation. */ | |
236 | HOWTO (R_PPC64_ADDR16, /* type */ | |
237 | 0, /* rightshift */ | |
238 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
239 | 16, /* bitsize */ | |
b34976b6 | 240 | FALSE, /* pc_relative */ |
5bd4f169 AM |
241 | 0, /* bitpos */ |
242 | complain_overflow_bitfield, /* complain_on_overflow */ | |
243 | bfd_elf_generic_reloc, /* special_function */ | |
244 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 245 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
246 | 0, /* src_mask */ |
247 | 0xffff, /* dst_mask */ | |
b34976b6 | 248 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
249 | |
250 | /* A 16 bit relocation without overflow. */ | |
251 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
252 | 0, /* rightshift */ | |
253 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
254 | 16, /* bitsize */ | |
b34976b6 | 255 | FALSE, /* pc_relative */ |
5bd4f169 AM |
256 | 0, /* bitpos */ |
257 | complain_overflow_dont,/* complain_on_overflow */ | |
258 | bfd_elf_generic_reloc, /* special_function */ | |
259 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 260 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
261 | 0, /* src_mask */ |
262 | 0xffff, /* dst_mask */ | |
b34976b6 | 263 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
264 | |
265 | /* Bits 16-31 of an address. */ | |
266 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
267 | 16, /* rightshift */ | |
268 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
269 | 16, /* bitsize */ | |
b34976b6 | 270 | FALSE, /* pc_relative */ |
5bd4f169 AM |
271 | 0, /* bitpos */ |
272 | complain_overflow_dont, /* complain_on_overflow */ | |
273 | bfd_elf_generic_reloc, /* special_function */ | |
274 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 275 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
276 | 0, /* src_mask */ |
277 | 0xffff, /* dst_mask */ | |
b34976b6 | 278 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
279 | |
280 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
281 | bits, treated as a signed number, is negative. */ | |
282 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
283 | 16, /* rightshift */ | |
284 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
285 | 16, /* bitsize */ | |
b34976b6 | 286 | FALSE, /* pc_relative */ |
5bd4f169 AM |
287 | 0, /* bitpos */ |
288 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 289 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 290 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 291 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
292 | 0, /* src_mask */ |
293 | 0xffff, /* dst_mask */ | |
b34976b6 | 294 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
295 | |
296 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
297 | FIXME: we don't check that, we just clear them. */ | |
298 | HOWTO (R_PPC64_ADDR14, /* type */ | |
299 | 0, /* rightshift */ | |
300 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
301 | 16, /* bitsize */ | |
b34976b6 | 302 | FALSE, /* pc_relative */ |
5bd4f169 AM |
303 | 0, /* bitpos */ |
304 | complain_overflow_bitfield, /* complain_on_overflow */ | |
305 | bfd_elf_generic_reloc, /* special_function */ | |
306 | "R_PPC64_ADDR14", /* name */ | |
b34976b6 | 307 | FALSE, /* partial_inplace */ |
d006db6c | 308 | 0, /* src_mask */ |
f5e87a1d | 309 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 310 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
311 | |
312 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
313 | indicate that the branch is expected to be taken. The lower two | |
314 | bits must be zero. */ | |
315 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
316 | 0, /* rightshift */ | |
317 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
318 | 16, /* bitsize */ | |
b34976b6 | 319 | FALSE, /* pc_relative */ |
5bd4f169 AM |
320 | 0, /* bitpos */ |
321 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 322 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 323 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 324 | FALSE, /* partial_inplace */ |
d006db6c | 325 | 0, /* src_mask */ |
f5e87a1d | 326 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 327 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
328 | |
329 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
330 | indicate that the branch is not expected to be taken. The lower | |
331 | two bits must be zero. */ | |
332 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
333 | 0, /* rightshift */ | |
334 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
335 | 16, /* bitsize */ | |
b34976b6 | 336 | FALSE, /* pc_relative */ |
5bd4f169 AM |
337 | 0, /* bitpos */ |
338 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 339 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 340 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 341 | FALSE, /* partial_inplace */ |
d006db6c | 342 | 0, /* src_mask */ |
f5e87a1d | 343 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 344 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
345 | |
346 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
347 | HOWTO (R_PPC64_REL24, /* type */ | |
348 | 0, /* rightshift */ | |
349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
350 | 26, /* bitsize */ | |
b34976b6 | 351 | TRUE, /* pc_relative */ |
5bd4f169 AM |
352 | 0, /* bitpos */ |
353 | complain_overflow_signed, /* complain_on_overflow */ | |
354 | bfd_elf_generic_reloc, /* special_function */ | |
355 | "R_PPC64_REL24", /* name */ | |
b34976b6 | 356 | FALSE, /* partial_inplace */ |
d006db6c | 357 | 0, /* src_mask */ |
f5e87a1d | 358 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 359 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
360 | |
361 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
362 | HOWTO (R_PPC64_REL14, /* type */ | |
363 | 0, /* rightshift */ | |
364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
365 | 16, /* bitsize */ | |
b34976b6 | 366 | TRUE, /* pc_relative */ |
5bd4f169 AM |
367 | 0, /* bitpos */ |
368 | complain_overflow_signed, /* complain_on_overflow */ | |
369 | bfd_elf_generic_reloc, /* special_function */ | |
370 | "R_PPC64_REL14", /* name */ | |
b34976b6 | 371 | FALSE, /* partial_inplace */ |
d006db6c | 372 | 0, /* src_mask */ |
f5e87a1d | 373 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 374 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
375 | |
376 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
377 | the branch is expected to be taken. The lower two bits must be | |
378 | zero. */ | |
379 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
380 | 0, /* rightshift */ | |
381 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
382 | 16, /* bitsize */ | |
b34976b6 | 383 | TRUE, /* pc_relative */ |
5bd4f169 AM |
384 | 0, /* bitpos */ |
385 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 386 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 387 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 388 | FALSE, /* partial_inplace */ |
d006db6c | 389 | 0, /* src_mask */ |
f5e87a1d | 390 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 391 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
392 | |
393 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
394 | the branch is not expected to be taken. The lower two bits must | |
395 | be zero. */ | |
396 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
397 | 0, /* rightshift */ | |
398 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
399 | 16, /* bitsize */ | |
b34976b6 | 400 | TRUE, /* pc_relative */ |
5bd4f169 AM |
401 | 0, /* bitpos */ |
402 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 403 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 404 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 405 | FALSE, /* partial_inplace */ |
d006db6c | 406 | 0, /* src_mask */ |
f5e87a1d | 407 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 408 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
409 | |
410 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
411 | symbol. */ | |
412 | HOWTO (R_PPC64_GOT16, /* type */ | |
413 | 0, /* rightshift */ | |
414 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
415 | 16, /* bitsize */ | |
b34976b6 | 416 | FALSE, /* pc_relative */ |
5bd4f169 AM |
417 | 0, /* bitpos */ |
418 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 419 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 420 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 421 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
422 | 0, /* src_mask */ |
423 | 0xffff, /* dst_mask */ | |
b34976b6 | 424 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
425 | |
426 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
427 | the symbol. */ | |
428 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
429 | 0, /* rightshift */ | |
430 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
431 | 16, /* bitsize */ | |
b34976b6 | 432 | FALSE, /* pc_relative */ |
5bd4f169 AM |
433 | 0, /* bitpos */ |
434 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 435 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 436 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 437 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
438 | 0, /* src_mask */ |
439 | 0xffff, /* dst_mask */ | |
b34976b6 | 440 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
441 | |
442 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
443 | the symbol. */ | |
444 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
445 | 16, /* rightshift */ | |
446 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
447 | 16, /* bitsize */ | |
b34976b6 | 448 | FALSE, /* pc_relative */ |
5bd4f169 AM |
449 | 0, /* bitpos */ |
450 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 451 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 452 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 453 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
454 | 0, /* src_mask */ |
455 | 0xffff, /* dst_mask */ | |
b34976b6 | 456 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
457 | |
458 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
459 | the symbol. */ | |
460 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
461 | 16, /* rightshift */ | |
462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
463 | 16, /* bitsize */ | |
b34976b6 | 464 | FALSE, /* pc_relative */ |
5bd4f169 AM |
465 | 0, /* bitpos */ |
466 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 467 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 468 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 469 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
470 | 0, /* src_mask */ |
471 | 0xffff, /* dst_mask */ | |
b34976b6 | 472 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
473 | |
474 | /* This is used only by the dynamic linker. The symbol should exist | |
475 | both in the object being run and in some shared library. The | |
476 | dynamic linker copies the data addressed by the symbol from the | |
477 | shared library into the object, because the object being | |
478 | run has to have the data at some particular address. */ | |
479 | HOWTO (R_PPC64_COPY, /* type */ | |
480 | 0, /* rightshift */ | |
f5e87a1d AM |
481 | 0, /* this one is variable size */ |
482 | 0, /* bitsize */ | |
b34976b6 | 483 | FALSE, /* pc_relative */ |
5bd4f169 | 484 | 0, /* bitpos */ |
f5e87a1d AM |
485 | complain_overflow_dont, /* complain_on_overflow */ |
486 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 487 | "R_PPC64_COPY", /* name */ |
b34976b6 | 488 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
489 | 0, /* src_mask */ |
490 | 0, /* dst_mask */ | |
b34976b6 | 491 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
492 | |
493 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
494 | entries. */ | |
495 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
496 | 0, /* rightshift */ | |
497 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
498 | 64, /* bitsize */ | |
b34976b6 | 499 | FALSE, /* pc_relative */ |
5bd4f169 AM |
500 | 0, /* bitpos */ |
501 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 502 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 503 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 504 | FALSE, /* partial_inplace */ |
5bd4f169 | 505 | 0, /* src_mask */ |
f5e87a1d | 506 | ONES (64), /* dst_mask */ |
b34976b6 | 507 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
508 | |
509 | /* Created by the link editor. Marks a procedure linkage table | |
510 | entry for a symbol. */ | |
511 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
512 | 0, /* rightshift */ | |
513 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
514 | 0, /* bitsize */ | |
b34976b6 | 515 | FALSE, /* pc_relative */ |
5bd4f169 AM |
516 | 0, /* bitpos */ |
517 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 518 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 519 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 520 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
521 | 0, /* src_mask */ |
522 | 0, /* dst_mask */ | |
b34976b6 | 523 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
524 | |
525 | /* Used only by the dynamic linker. When the object is run, this | |
526 | doubleword64 is set to the load address of the object, plus the | |
527 | addend. */ | |
528 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
529 | 0, /* rightshift */ | |
530 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
531 | 64, /* bitsize */ | |
b34976b6 | 532 | FALSE, /* pc_relative */ |
5bd4f169 AM |
533 | 0, /* bitpos */ |
534 | complain_overflow_dont, /* complain_on_overflow */ | |
535 | bfd_elf_generic_reloc, /* special_function */ | |
536 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 537 | FALSE, /* partial_inplace */ |
5bd4f169 | 538 | 0, /* src_mask */ |
f5e87a1d | 539 | ONES (64), /* dst_mask */ |
b34976b6 | 540 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
541 | |
542 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
543 | HOWTO (R_PPC64_UADDR32, /* type */ | |
544 | 0, /* rightshift */ | |
545 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
546 | 32, /* bitsize */ | |
b34976b6 | 547 | FALSE, /* pc_relative */ |
5bd4f169 AM |
548 | 0, /* bitpos */ |
549 | complain_overflow_bitfield, /* complain_on_overflow */ | |
550 | bfd_elf_generic_reloc, /* special_function */ | |
551 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 552 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
553 | 0, /* src_mask */ |
554 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 555 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
556 | |
557 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
558 | HOWTO (R_PPC64_UADDR16, /* type */ | |
559 | 0, /* rightshift */ | |
560 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
561 | 16, /* bitsize */ | |
b34976b6 | 562 | FALSE, /* pc_relative */ |
5bd4f169 AM |
563 | 0, /* bitpos */ |
564 | complain_overflow_bitfield, /* complain_on_overflow */ | |
565 | bfd_elf_generic_reloc, /* special_function */ | |
566 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 567 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
568 | 0, /* src_mask */ |
569 | 0xffff, /* dst_mask */ | |
b34976b6 | 570 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
571 | |
572 | /* 32-bit PC relative. */ | |
573 | HOWTO (R_PPC64_REL32, /* type */ | |
574 | 0, /* rightshift */ | |
575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 32, /* bitsize */ | |
b34976b6 | 577 | TRUE, /* pc_relative */ |
5bd4f169 | 578 | 0, /* bitpos */ |
cedb70c5 | 579 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
580 | complain_overflow_signed, /* complain_on_overflow */ |
581 | bfd_elf_generic_reloc, /* special_function */ | |
582 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 583 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
584 | 0, /* src_mask */ |
585 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 586 | TRUE), /* pcrel_offset */ |
5bd4f169 | 587 | |
10ed1bba | 588 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
589 | HOWTO (R_PPC64_PLT32, /* type */ |
590 | 0, /* rightshift */ | |
591 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
592 | 32, /* bitsize */ | |
b34976b6 | 593 | FALSE, /* pc_relative */ |
5bd4f169 AM |
594 | 0, /* bitpos */ |
595 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 596 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 597 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 598 | FALSE, /* partial_inplace */ |
5bd4f169 | 599 | 0, /* src_mask */ |
f5e87a1d | 600 | 0xffffffff, /* dst_mask */ |
b34976b6 | 601 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
602 | |
603 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
604 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
605 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
606 | 0, /* rightshift */ | |
607 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
608 | 32, /* bitsize */ | |
b34976b6 | 609 | TRUE, /* pc_relative */ |
5bd4f169 AM |
610 | 0, /* bitpos */ |
611 | complain_overflow_signed, /* complain_on_overflow */ | |
612 | bfd_elf_generic_reloc, /* special_function */ | |
613 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 614 | FALSE, /* partial_inplace */ |
5bd4f169 | 615 | 0, /* src_mask */ |
f5e87a1d | 616 | 0xffffffff, /* dst_mask */ |
b34976b6 | 617 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
618 | |
619 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
620 | the symbol. */ | |
621 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
622 | 0, /* rightshift */ | |
623 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
624 | 16, /* bitsize */ | |
b34976b6 | 625 | FALSE, /* pc_relative */ |
5bd4f169 AM |
626 | 0, /* bitpos */ |
627 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 628 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 629 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 630 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
631 | 0, /* src_mask */ |
632 | 0xffff, /* dst_mask */ | |
b34976b6 | 633 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
634 | |
635 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
636 | the symbol. */ | |
637 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
638 | 16, /* rightshift */ | |
639 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
640 | 16, /* bitsize */ | |
b34976b6 | 641 | FALSE, /* pc_relative */ |
5bd4f169 AM |
642 | 0, /* bitpos */ |
643 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 644 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 645 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 646 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
647 | 0, /* src_mask */ |
648 | 0xffff, /* dst_mask */ | |
b34976b6 | 649 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
650 | |
651 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
652 | the symbol. */ | |
653 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
654 | 16, /* rightshift */ | |
655 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
656 | 16, /* bitsize */ | |
b34976b6 | 657 | FALSE, /* pc_relative */ |
5bd4f169 AM |
658 | 0, /* bitpos */ |
659 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 660 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 661 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 662 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
663 | 0, /* src_mask */ |
664 | 0xffff, /* dst_mask */ | |
b34976b6 | 665 | FALSE), /* pcrel_offset */ |
5bd4f169 | 666 | |
c061c2d8 | 667 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
668 | HOWTO (R_PPC64_SECTOFF, /* type */ |
669 | 0, /* rightshift */ | |
c061c2d8 AM |
670 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
671 | 16, /* bitsize */ | |
b34976b6 | 672 | FALSE, /* pc_relative */ |
5bd4f169 AM |
673 | 0, /* bitpos */ |
674 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 675 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 676 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 677 | FALSE, /* partial_inplace */ |
5bd4f169 | 678 | 0, /* src_mask */ |
c061c2d8 | 679 | 0xffff, /* dst_mask */ |
b34976b6 | 680 | FALSE), /* pcrel_offset */ |
5bd4f169 | 681 | |
c061c2d8 | 682 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
683 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
684 | 0, /* rightshift */ | |
685 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
686 | 16, /* bitsize */ | |
b34976b6 | 687 | FALSE, /* pc_relative */ |
5bd4f169 AM |
688 | 0, /* bitpos */ |
689 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 690 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 691 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 692 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
693 | 0, /* src_mask */ |
694 | 0xffff, /* dst_mask */ | |
b34976b6 | 695 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
696 | |
697 | /* 16-bit upper half section relative relocation. */ | |
698 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
699 | 16, /* rightshift */ | |
700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
701 | 16, /* bitsize */ | |
b34976b6 | 702 | FALSE, /* pc_relative */ |
5bd4f169 AM |
703 | 0, /* bitpos */ |
704 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 705 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 706 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 707 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
708 | 0, /* src_mask */ |
709 | 0xffff, /* dst_mask */ | |
b34976b6 | 710 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
711 | |
712 | /* 16-bit upper half adjusted section relative relocation. */ | |
713 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
714 | 16, /* rightshift */ | |
715 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
716 | 16, /* bitsize */ | |
b34976b6 | 717 | FALSE, /* pc_relative */ |
5bd4f169 AM |
718 | 0, /* bitpos */ |
719 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 720 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 721 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 722 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
723 | 0, /* src_mask */ |
724 | 0xffff, /* dst_mask */ | |
b34976b6 | 725 | FALSE), /* pcrel_offset */ |
5bd4f169 | 726 | |
04c9666a AM |
727 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
728 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
729 | 2, /* rightshift */ |
730 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
731 | 30, /* bitsize */ | |
b34976b6 | 732 | TRUE, /* pc_relative */ |
5bd4f169 AM |
733 | 0, /* bitpos */ |
734 | complain_overflow_dont, /* complain_on_overflow */ | |
735 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 736 | "R_PPC64_REL30", /* name */ |
b34976b6 | 737 | FALSE, /* partial_inplace */ |
d006db6c | 738 | 0, /* src_mask */ |
5bd4f169 | 739 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 740 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
741 | |
742 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
743 | ||
744 | /* A standard 64-bit relocation. */ | |
745 | HOWTO (R_PPC64_ADDR64, /* type */ | |
746 | 0, /* rightshift */ | |
747 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
748 | 64, /* bitsize */ | |
b34976b6 | 749 | FALSE, /* pc_relative */ |
5bd4f169 AM |
750 | 0, /* bitpos */ |
751 | complain_overflow_dont, /* complain_on_overflow */ | |
752 | bfd_elf_generic_reloc, /* special_function */ | |
753 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 754 | FALSE, /* partial_inplace */ |
5bd4f169 | 755 | 0, /* src_mask */ |
f5e87a1d | 756 | ONES (64), /* dst_mask */ |
b34976b6 | 757 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
758 | |
759 | /* The bits 32-47 of an address. */ | |
760 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
761 | 32, /* rightshift */ | |
762 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
763 | 16, /* bitsize */ | |
b34976b6 | 764 | FALSE, /* pc_relative */ |
5bd4f169 AM |
765 | 0, /* bitpos */ |
766 | complain_overflow_dont, /* complain_on_overflow */ | |
767 | bfd_elf_generic_reloc, /* special_function */ | |
768 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 769 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
770 | 0, /* src_mask */ |
771 | 0xffff, /* dst_mask */ | |
b34976b6 | 772 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
773 | |
774 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
775 | 16 bits, treated as a signed number, is negative. */ | |
776 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
777 | 32, /* rightshift */ | |
778 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
779 | 16, /* bitsize */ | |
b34976b6 | 780 | FALSE, /* pc_relative */ |
5bd4f169 AM |
781 | 0, /* bitpos */ |
782 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 783 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 784 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 785 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
786 | 0, /* src_mask */ |
787 | 0xffff, /* dst_mask */ | |
b34976b6 | 788 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
789 | |
790 | /* The bits 48-63 of an address. */ | |
791 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
792 | 48, /* rightshift */ | |
793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 16, /* bitsize */ | |
b34976b6 | 795 | FALSE, /* pc_relative */ |
5bd4f169 AM |
796 | 0, /* bitpos */ |
797 | complain_overflow_dont, /* complain_on_overflow */ | |
798 | bfd_elf_generic_reloc, /* special_function */ | |
799 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 800 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
801 | 0, /* src_mask */ |
802 | 0xffff, /* dst_mask */ | |
b34976b6 | 803 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
804 | |
805 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
806 | 16 bits, treated as a signed number, is negative. */ | |
807 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
808 | 48, /* rightshift */ | |
809 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
810 | 16, /* bitsize */ | |
b34976b6 | 811 | FALSE, /* pc_relative */ |
5bd4f169 AM |
812 | 0, /* bitpos */ |
813 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 814 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 815 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 816 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
817 | 0, /* src_mask */ |
818 | 0xffff, /* dst_mask */ | |
b34976b6 | 819 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
820 | |
821 | /* Like ADDR64, but may be unaligned. */ | |
822 | HOWTO (R_PPC64_UADDR64, /* type */ | |
823 | 0, /* rightshift */ | |
824 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
825 | 64, /* bitsize */ | |
b34976b6 | 826 | FALSE, /* pc_relative */ |
5bd4f169 AM |
827 | 0, /* bitpos */ |
828 | complain_overflow_dont, /* complain_on_overflow */ | |
829 | bfd_elf_generic_reloc, /* special_function */ | |
830 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 831 | FALSE, /* partial_inplace */ |
5bd4f169 | 832 | 0, /* src_mask */ |
f5e87a1d | 833 | ONES (64), /* dst_mask */ |
b34976b6 | 834 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
835 | |
836 | /* 64-bit relative relocation. */ | |
837 | HOWTO (R_PPC64_REL64, /* type */ | |
838 | 0, /* rightshift */ | |
839 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
840 | 64, /* bitsize */ | |
b34976b6 | 841 | TRUE, /* pc_relative */ |
5bd4f169 AM |
842 | 0, /* bitpos */ |
843 | complain_overflow_dont, /* complain_on_overflow */ | |
844 | bfd_elf_generic_reloc, /* special_function */ | |
845 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 846 | FALSE, /* partial_inplace */ |
5bd4f169 | 847 | 0, /* src_mask */ |
f5e87a1d | 848 | ONES (64), /* dst_mask */ |
b34976b6 | 849 | TRUE), /* pcrel_offset */ |
5bd4f169 | 850 | |
cedb70c5 | 851 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
852 | HOWTO (R_PPC64_PLT64, /* type */ |
853 | 0, /* rightshift */ | |
854 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
855 | 64, /* bitsize */ | |
b34976b6 | 856 | FALSE, /* pc_relative */ |
5bd4f169 AM |
857 | 0, /* bitpos */ |
858 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 859 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 860 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 861 | FALSE, /* partial_inplace */ |
5bd4f169 | 862 | 0, /* src_mask */ |
f5e87a1d | 863 | ONES (64), /* dst_mask */ |
b34976b6 | 864 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
865 | |
866 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
867 | table. */ | |
868 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
869 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
870 | 0, /* rightshift */ | |
871 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
872 | 64, /* bitsize */ | |
b34976b6 | 873 | TRUE, /* pc_relative */ |
5bd4f169 AM |
874 | 0, /* bitpos */ |
875 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 876 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 877 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 878 | FALSE, /* partial_inplace */ |
5bd4f169 | 879 | 0, /* src_mask */ |
f5e87a1d | 880 | ONES (64), /* dst_mask */ |
b34976b6 | 881 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
882 | |
883 | /* 16 bit TOC-relative relocation. */ | |
884 | ||
885 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
886 | HOWTO (R_PPC64_TOC16, /* type */ | |
887 | 0, /* rightshift */ | |
888 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
889 | 16, /* bitsize */ | |
b34976b6 | 890 | FALSE, /* pc_relative */ |
5bd4f169 AM |
891 | 0, /* bitpos */ |
892 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 893 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 894 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 895 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
896 | 0, /* src_mask */ |
897 | 0xffff, /* dst_mask */ | |
b34976b6 | 898 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
899 | |
900 | /* 16 bit TOC-relative relocation without overflow. */ | |
901 | ||
902 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
903 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
904 | 0, /* rightshift */ | |
905 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
906 | 16, /* bitsize */ | |
b34976b6 | 907 | FALSE, /* pc_relative */ |
5bd4f169 AM |
908 | 0, /* bitpos */ |
909 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 910 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 911 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 912 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
913 | 0, /* src_mask */ |
914 | 0xffff, /* dst_mask */ | |
b34976b6 | 915 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
916 | |
917 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
918 | ||
919 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
920 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
921 | 16, /* rightshift */ | |
922 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
923 | 16, /* bitsize */ | |
b34976b6 | 924 | FALSE, /* pc_relative */ |
5bd4f169 AM |
925 | 0, /* bitpos */ |
926 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 927 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 928 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 929 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
930 | 0, /* src_mask */ |
931 | 0xffff, /* dst_mask */ | |
b34976b6 | 932 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
933 | |
934 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
935 | contents of the low 16 bits, treated as a signed number, is | |
936 | negative. */ | |
937 | ||
938 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
939 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
940 | 16, /* rightshift */ | |
941 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
942 | 16, /* bitsize */ | |
b34976b6 | 943 | FALSE, /* pc_relative */ |
5bd4f169 AM |
944 | 0, /* bitpos */ |
945 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 946 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 947 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 948 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
949 | 0, /* src_mask */ |
950 | 0xffff, /* dst_mask */ | |
b34976b6 | 951 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
952 | |
953 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
954 | ||
955 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
956 | HOWTO (R_PPC64_TOC, /* type */ | |
957 | 0, /* rightshift */ | |
958 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
959 | 64, /* bitsize */ | |
b34976b6 | 960 | FALSE, /* pc_relative */ |
5bd4f169 AM |
961 | 0, /* bitpos */ |
962 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 963 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 964 | "R_PPC64_TOC", /* name */ |
b34976b6 | 965 | FALSE, /* partial_inplace */ |
5bd4f169 | 966 | 0, /* src_mask */ |
f5e87a1d | 967 | ONES (64), /* dst_mask */ |
b34976b6 | 968 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
969 | |
970 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
971 | value to relocate may (!) refer to a PLT entry which the link | |
972 | editor (a) may replace with the symbol value. If the link editor | |
973 | is unable to fully resolve the symbol, it may (b) create a PLT | |
974 | entry and store the address to the new PLT entry in the GOT. | |
975 | This permits lazy resolution of function symbols at run time. | |
976 | The link editor may also skip all of this and just (c) emit a | |
977 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
978 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
979 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
980 | 0, /* rightshift */ | |
981 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
982 | 16, /* bitsize */ | |
b34976b6 | 983 | FALSE, /* pc_relative */ |
5bd4f169 AM |
984 | 0, /* bitpos */ |
985 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 986 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
987 | "R_PPC64_PLTGOT16", /* name */ |
988 | FALSE, /* partial_inplace */ | |
989 | 0, /* src_mask */ | |
990 | 0xffff, /* dst_mask */ | |
991 | FALSE), /* pcrel_offset */ | |
992 | ||
993 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
994 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
995 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
996 | 0, /* rightshift */ | |
997 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
998 | 16, /* bitsize */ | |
999 | FALSE, /* pc_relative */ | |
1000 | 0, /* bitpos */ | |
1001 | complain_overflow_dont, /* complain_on_overflow */ | |
1002 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1003 | "R_PPC64_PLTGOT16_LO", /* name */ | |
1004 | FALSE, /* partial_inplace */ | |
1005 | 0, /* src_mask */ | |
1006 | 0xffff, /* dst_mask */ | |
1007 | FALSE), /* pcrel_offset */ | |
1008 | ||
1009 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1010 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1011 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1012 | 16, /* rightshift */ | |
1013 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1014 | 16, /* bitsize */ | |
1015 | FALSE, /* pc_relative */ | |
1016 | 0, /* bitpos */ | |
1017 | complain_overflow_dont, /* complain_on_overflow */ | |
1018 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1019 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1020 | FALSE, /* partial_inplace */ | |
1021 | 0, /* src_mask */ | |
1022 | 0xffff, /* dst_mask */ | |
1023 | FALSE), /* pcrel_offset */ | |
1024 | ||
1025 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1026 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1027 | is negative. */ | |
1028 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1029 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1030 | 16, /* rightshift */ | |
1031 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1032 | 16, /* bitsize */ | |
1033 | FALSE, /* pc_relative */ | |
1034 | 0, /* bitpos */ | |
1035 | complain_overflow_dont,/* complain_on_overflow */ | |
1036 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1037 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1038 | FALSE, /* partial_inplace */ | |
1039 | 0, /* src_mask */ | |
1040 | 0xffff, /* dst_mask */ | |
1041 | FALSE), /* pcrel_offset */ | |
1042 | ||
1043 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1044 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1045 | 0, /* rightshift */ | |
1046 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1047 | 16, /* bitsize */ | |
1048 | FALSE, /* pc_relative */ | |
1049 | 0, /* bitpos */ | |
1050 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1051 | bfd_elf_generic_reloc, /* special_function */ | |
1052 | "R_PPC64_ADDR16_DS", /* name */ | |
1053 | FALSE, /* partial_inplace */ | |
1054 | 0, /* src_mask */ | |
1055 | 0xfffc, /* dst_mask */ | |
1056 | FALSE), /* pcrel_offset */ | |
1057 | ||
1058 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1059 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1060 | 0, /* rightshift */ | |
1061 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1062 | 16, /* bitsize */ | |
1063 | FALSE, /* pc_relative */ | |
1064 | 0, /* bitpos */ | |
1065 | complain_overflow_dont,/* complain_on_overflow */ | |
1066 | bfd_elf_generic_reloc, /* special_function */ | |
1067 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1068 | FALSE, /* partial_inplace */ | |
1069 | 0, /* src_mask */ | |
1070 | 0xfffc, /* dst_mask */ | |
1071 | FALSE), /* pcrel_offset */ | |
1072 | ||
1073 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1074 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1075 | 0, /* rightshift */ | |
1076 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1077 | 16, /* bitsize */ | |
1078 | FALSE, /* pc_relative */ | |
1079 | 0, /* bitpos */ | |
1080 | complain_overflow_signed, /* complain_on_overflow */ | |
1081 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1082 | "R_PPC64_GOT16_DS", /* name */ | |
1083 | FALSE, /* partial_inplace */ | |
1084 | 0, /* src_mask */ | |
1085 | 0xfffc, /* dst_mask */ | |
1086 | FALSE), /* pcrel_offset */ | |
1087 | ||
1088 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1089 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1090 | 0, /* rightshift */ | |
1091 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1092 | 16, /* bitsize */ | |
1093 | FALSE, /* pc_relative */ | |
1094 | 0, /* bitpos */ | |
1095 | complain_overflow_dont, /* complain_on_overflow */ | |
1096 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1097 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1098 | FALSE, /* partial_inplace */ | |
1099 | 0, /* src_mask */ | |
1100 | 0xfffc, /* dst_mask */ | |
1101 | FALSE), /* pcrel_offset */ | |
1102 | ||
1103 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1104 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1105 | 0, /* rightshift */ | |
1106 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1107 | 16, /* bitsize */ | |
1108 | FALSE, /* pc_relative */ | |
1109 | 0, /* bitpos */ | |
1110 | complain_overflow_dont, /* complain_on_overflow */ | |
1111 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1112 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1113 | FALSE, /* partial_inplace */ | |
1114 | 0, /* src_mask */ | |
1115 | 0xfffc, /* dst_mask */ | |
1116 | FALSE), /* pcrel_offset */ | |
1117 | ||
1118 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1119 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1120 | 0, /* rightshift */ | |
1121 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1122 | 16, /* bitsize */ | |
1123 | FALSE, /* pc_relative */ | |
1124 | 0, /* bitpos */ | |
1125 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1126 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1127 | "R_PPC64_SECTOFF_DS", /* name */ | |
1128 | FALSE, /* partial_inplace */ | |
1129 | 0, /* src_mask */ | |
1130 | 0xfffc, /* dst_mask */ | |
1131 | FALSE), /* pcrel_offset */ | |
1132 | ||
1133 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1134 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1135 | 0, /* rightshift */ | |
1136 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1137 | 16, /* bitsize */ | |
1138 | FALSE, /* pc_relative */ | |
1139 | 0, /* bitpos */ | |
1140 | complain_overflow_dont, /* complain_on_overflow */ | |
1141 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1142 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1143 | FALSE, /* partial_inplace */ | |
1144 | 0, /* src_mask */ | |
1145 | 0xfffc, /* dst_mask */ | |
1146 | FALSE), /* pcrel_offset */ | |
1147 | ||
1148 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1149 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1150 | 0, /* rightshift */ | |
1151 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1152 | 16, /* bitsize */ | |
1153 | FALSE, /* pc_relative */ | |
1154 | 0, /* bitpos */ | |
1155 | complain_overflow_signed, /* complain_on_overflow */ | |
1156 | ppc64_elf_toc_reloc, /* special_function */ | |
1157 | "R_PPC64_TOC16_DS", /* name */ | |
1158 | FALSE, /* partial_inplace */ | |
1159 | 0, /* src_mask */ | |
1160 | 0xfffc, /* dst_mask */ | |
1161 | FALSE), /* pcrel_offset */ | |
1162 | ||
1163 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1164 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1165 | 0, /* rightshift */ | |
1166 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1167 | 16, /* bitsize */ | |
1168 | FALSE, /* pc_relative */ | |
1169 | 0, /* bitpos */ | |
1170 | complain_overflow_dont, /* complain_on_overflow */ | |
1171 | ppc64_elf_toc_reloc, /* special_function */ | |
1172 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1173 | FALSE, /* partial_inplace */ | |
1174 | 0, /* src_mask */ | |
1175 | 0xfffc, /* dst_mask */ | |
1176 | FALSE), /* pcrel_offset */ | |
1177 | ||
1178 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1179 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1180 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1181 | 0, /* rightshift */ | |
1182 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1183 | 16, /* bitsize */ | |
1184 | FALSE, /* pc_relative */ | |
1185 | 0, /* bitpos */ | |
1186 | complain_overflow_signed, /* complain_on_overflow */ | |
1187 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1188 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1189 | FALSE, /* partial_inplace */ | |
1190 | 0, /* src_mask */ | |
1191 | 0xfffc, /* dst_mask */ | |
1192 | FALSE), /* pcrel_offset */ | |
1193 | ||
1194 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1195 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1196 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1197 | 0, /* rightshift */ | |
1198 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1199 | 16, /* bitsize */ | |
1200 | FALSE, /* pc_relative */ | |
1201 | 0, /* bitpos */ | |
1202 | complain_overflow_dont, /* complain_on_overflow */ | |
1203 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1204 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1205 | FALSE, /* partial_inplace */ | |
1206 | 0, /* src_mask */ | |
1207 | 0xfffc, /* dst_mask */ | |
1208 | FALSE), /* pcrel_offset */ | |
1209 | ||
1210 | /* Marker reloc for TLS. */ | |
1211 | HOWTO (R_PPC64_TLS, | |
1212 | 0, /* rightshift */ | |
1213 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1214 | 32, /* bitsize */ | |
1215 | FALSE, /* pc_relative */ | |
1216 | 0, /* bitpos */ | |
1217 | complain_overflow_dont, /* complain_on_overflow */ | |
1218 | bfd_elf_generic_reloc, /* special_function */ | |
1219 | "R_PPC64_TLS", /* name */ | |
1220 | FALSE, /* partial_inplace */ | |
1221 | 0, /* src_mask */ | |
1222 | 0, /* dst_mask */ | |
1223 | FALSE), /* pcrel_offset */ | |
1224 | ||
1225 | /* Computes the load module index of the load module that contains the | |
1226 | definition of its TLS sym. */ | |
1227 | HOWTO (R_PPC64_DTPMOD64, | |
1228 | 0, /* rightshift */ | |
1229 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1230 | 64, /* bitsize */ | |
1231 | FALSE, /* pc_relative */ | |
1232 | 0, /* bitpos */ | |
1233 | complain_overflow_dont, /* complain_on_overflow */ | |
1234 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1235 | "R_PPC64_DTPMOD64", /* name */ | |
1236 | FALSE, /* partial_inplace */ | |
1237 | 0, /* src_mask */ | |
1238 | ONES (64), /* dst_mask */ | |
1239 | FALSE), /* pcrel_offset */ | |
1240 | ||
1241 | /* Computes a dtv-relative displacement, the difference between the value | |
1242 | of sym+add and the base address of the thread-local storage block that | |
1243 | contains the definition of sym, minus 0x8000. */ | |
1244 | HOWTO (R_PPC64_DTPREL64, | |
1245 | 0, /* rightshift */ | |
1246 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1247 | 64, /* bitsize */ | |
1248 | FALSE, /* pc_relative */ | |
1249 | 0, /* bitpos */ | |
1250 | complain_overflow_dont, /* complain_on_overflow */ | |
1251 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1252 | "R_PPC64_DTPREL64", /* name */ | |
1253 | FALSE, /* partial_inplace */ | |
1254 | 0, /* src_mask */ | |
1255 | ONES (64), /* dst_mask */ | |
1256 | FALSE), /* pcrel_offset */ | |
1257 | ||
1258 | /* A 16 bit dtprel reloc. */ | |
1259 | HOWTO (R_PPC64_DTPREL16, | |
1260 | 0, /* rightshift */ | |
1261 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1262 | 16, /* bitsize */ | |
1263 | FALSE, /* pc_relative */ | |
1264 | 0, /* bitpos */ | |
1265 | complain_overflow_signed, /* complain_on_overflow */ | |
1266 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1267 | "R_PPC64_DTPREL16", /* name */ | |
1268 | FALSE, /* partial_inplace */ | |
1269 | 0, /* src_mask */ | |
1270 | 0xffff, /* dst_mask */ | |
1271 | FALSE), /* pcrel_offset */ | |
1272 | ||
1273 | /* Like DTPREL16, but no overflow. */ | |
1274 | HOWTO (R_PPC64_DTPREL16_LO, | |
1275 | 0, /* rightshift */ | |
1276 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1277 | 16, /* bitsize */ | |
1278 | FALSE, /* pc_relative */ | |
1279 | 0, /* bitpos */ | |
1280 | complain_overflow_dont, /* complain_on_overflow */ | |
1281 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1282 | "R_PPC64_DTPREL16_LO", /* name */ | |
1283 | FALSE, /* partial_inplace */ | |
1284 | 0, /* src_mask */ | |
1285 | 0xffff, /* dst_mask */ | |
1286 | FALSE), /* pcrel_offset */ | |
1287 | ||
1288 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1289 | HOWTO (R_PPC64_DTPREL16_HI, | |
1290 | 16, /* rightshift */ | |
1291 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1292 | 16, /* bitsize */ | |
1293 | FALSE, /* pc_relative */ | |
1294 | 0, /* bitpos */ | |
1295 | complain_overflow_dont, /* complain_on_overflow */ | |
1296 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1297 | "R_PPC64_DTPREL16_HI", /* name */ | |
1298 | FALSE, /* partial_inplace */ | |
1299 | 0, /* src_mask */ | |
1300 | 0xffff, /* dst_mask */ | |
1301 | FALSE), /* pcrel_offset */ | |
1302 | ||
1303 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1304 | HOWTO (R_PPC64_DTPREL16_HA, | |
1305 | 16, /* rightshift */ | |
1306 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1307 | 16, /* bitsize */ | |
1308 | FALSE, /* pc_relative */ | |
1309 | 0, /* bitpos */ | |
1310 | complain_overflow_dont, /* complain_on_overflow */ | |
1311 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1312 | "R_PPC64_DTPREL16_HA", /* name */ | |
1313 | FALSE, /* partial_inplace */ | |
1314 | 0, /* src_mask */ | |
1315 | 0xffff, /* dst_mask */ | |
1316 | FALSE), /* pcrel_offset */ | |
1317 | ||
1318 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1319 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1320 | 32, /* rightshift */ | |
1321 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1322 | 16, /* bitsize */ | |
1323 | FALSE, /* pc_relative */ | |
1324 | 0, /* bitpos */ | |
1325 | complain_overflow_dont, /* complain_on_overflow */ | |
1326 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1327 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1328 | FALSE, /* partial_inplace */ | |
1329 | 0, /* src_mask */ | |
1330 | 0xffff, /* dst_mask */ | |
1331 | FALSE), /* pcrel_offset */ | |
1332 | ||
1333 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1334 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1335 | 32, /* rightshift */ | |
1336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1337 | 16, /* bitsize */ | |
1338 | FALSE, /* pc_relative */ | |
1339 | 0, /* bitpos */ | |
1340 | complain_overflow_dont, /* complain_on_overflow */ | |
1341 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1342 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1343 | FALSE, /* partial_inplace */ | |
1344 | 0, /* src_mask */ | |
1345 | 0xffff, /* dst_mask */ | |
1346 | FALSE), /* pcrel_offset */ | |
1347 | ||
1348 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1349 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1350 | 48, /* rightshift */ | |
1351 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1352 | 16, /* bitsize */ | |
1353 | FALSE, /* pc_relative */ | |
1354 | 0, /* bitpos */ | |
1355 | complain_overflow_dont, /* complain_on_overflow */ | |
1356 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1357 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1358 | FALSE, /* partial_inplace */ | |
1359 | 0, /* src_mask */ | |
1360 | 0xffff, /* dst_mask */ | |
1361 | FALSE), /* pcrel_offset */ | |
1362 | ||
1363 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1364 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1365 | 48, /* rightshift */ | |
1366 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1367 | 16, /* bitsize */ | |
1368 | FALSE, /* pc_relative */ | |
1369 | 0, /* bitpos */ | |
1370 | complain_overflow_dont, /* complain_on_overflow */ | |
1371 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1372 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1373 | FALSE, /* partial_inplace */ | |
1374 | 0, /* src_mask */ | |
1375 | 0xffff, /* dst_mask */ | |
1376 | FALSE), /* pcrel_offset */ | |
1377 | ||
1378 | /* Like DTPREL16, but for insns with a DS field. */ | |
1379 | HOWTO (R_PPC64_DTPREL16_DS, | |
1380 | 0, /* rightshift */ | |
1381 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1382 | 16, /* bitsize */ | |
1383 | FALSE, /* pc_relative */ | |
1384 | 0, /* bitpos */ | |
1385 | complain_overflow_signed, /* complain_on_overflow */ | |
1386 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1387 | "R_PPC64_DTPREL16_DS", /* name */ | |
1388 | FALSE, /* partial_inplace */ | |
1389 | 0, /* src_mask */ | |
1390 | 0xfffc, /* dst_mask */ | |
1391 | FALSE), /* pcrel_offset */ | |
1392 | ||
1393 | /* Like DTPREL16_DS, but no overflow. */ | |
1394 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1395 | 0, /* rightshift */ | |
1396 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1397 | 16, /* bitsize */ | |
1398 | FALSE, /* pc_relative */ | |
1399 | 0, /* bitpos */ | |
1400 | complain_overflow_dont, /* complain_on_overflow */ | |
1401 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1402 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1403 | FALSE, /* partial_inplace */ | |
1404 | 0, /* src_mask */ | |
1405 | 0xfffc, /* dst_mask */ | |
1406 | FALSE), /* pcrel_offset */ | |
1407 | ||
1408 | /* Computes a tp-relative displacement, the difference between the value of | |
1409 | sym+add and the value of the thread pointer (r13). */ | |
1410 | HOWTO (R_PPC64_TPREL64, | |
1411 | 0, /* rightshift */ | |
1412 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1413 | 64, /* bitsize */ | |
1414 | FALSE, /* pc_relative */ | |
1415 | 0, /* bitpos */ | |
1416 | complain_overflow_dont, /* complain_on_overflow */ | |
1417 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1418 | "R_PPC64_TPREL64", /* name */ | |
1419 | FALSE, /* partial_inplace */ | |
1420 | 0, /* src_mask */ | |
1421 | ONES (64), /* dst_mask */ | |
1422 | FALSE), /* pcrel_offset */ | |
1423 | ||
1424 | /* A 16 bit tprel reloc. */ | |
1425 | HOWTO (R_PPC64_TPREL16, | |
1426 | 0, /* rightshift */ | |
1427 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1428 | 16, /* bitsize */ | |
1429 | FALSE, /* pc_relative */ | |
1430 | 0, /* bitpos */ | |
1431 | complain_overflow_signed, /* complain_on_overflow */ | |
1432 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1433 | "R_PPC64_TPREL16", /* name */ | |
1434 | FALSE, /* partial_inplace */ | |
1435 | 0, /* src_mask */ | |
1436 | 0xffff, /* dst_mask */ | |
1437 | FALSE), /* pcrel_offset */ | |
1438 | ||
1439 | /* Like TPREL16, but no overflow. */ | |
1440 | HOWTO (R_PPC64_TPREL16_LO, | |
1441 | 0, /* rightshift */ | |
1442 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1443 | 16, /* bitsize */ | |
1444 | FALSE, /* pc_relative */ | |
1445 | 0, /* bitpos */ | |
1446 | complain_overflow_dont, /* complain_on_overflow */ | |
1447 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1448 | "R_PPC64_TPREL16_LO", /* name */ | |
1449 | FALSE, /* partial_inplace */ | |
1450 | 0, /* src_mask */ | |
1451 | 0xffff, /* dst_mask */ | |
1452 | FALSE), /* pcrel_offset */ | |
1453 | ||
1454 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1455 | HOWTO (R_PPC64_TPREL16_HI, | |
1456 | 16, /* rightshift */ | |
1457 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1458 | 16, /* bitsize */ | |
1459 | FALSE, /* pc_relative */ | |
1460 | 0, /* bitpos */ | |
1461 | complain_overflow_dont, /* complain_on_overflow */ | |
1462 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1463 | "R_PPC64_TPREL16_HI", /* name */ | |
1464 | FALSE, /* partial_inplace */ | |
1465 | 0, /* src_mask */ | |
1466 | 0xffff, /* dst_mask */ | |
1467 | FALSE), /* pcrel_offset */ | |
1468 | ||
1469 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1470 | HOWTO (R_PPC64_TPREL16_HA, | |
1471 | 16, /* rightshift */ | |
1472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1473 | 16, /* bitsize */ | |
1474 | FALSE, /* pc_relative */ | |
1475 | 0, /* bitpos */ | |
1476 | complain_overflow_dont, /* complain_on_overflow */ | |
1477 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1478 | "R_PPC64_TPREL16_HA", /* name */ | |
1479 | FALSE, /* partial_inplace */ | |
1480 | 0, /* src_mask */ | |
1481 | 0xffff, /* dst_mask */ | |
1482 | FALSE), /* pcrel_offset */ | |
1483 | ||
1484 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1485 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1486 | 32, /* rightshift */ | |
1487 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1488 | 16, /* bitsize */ | |
1489 | FALSE, /* pc_relative */ | |
1490 | 0, /* bitpos */ | |
1491 | complain_overflow_dont, /* complain_on_overflow */ | |
1492 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1493 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1494 | FALSE, /* partial_inplace */ | |
1495 | 0, /* src_mask */ | |
1496 | 0xffff, /* dst_mask */ | |
1497 | FALSE), /* pcrel_offset */ | |
1498 | ||
1499 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1500 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1501 | 32, /* rightshift */ | |
1502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1503 | 16, /* bitsize */ | |
1504 | FALSE, /* pc_relative */ | |
1505 | 0, /* bitpos */ | |
1506 | complain_overflow_dont, /* complain_on_overflow */ | |
1507 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1508 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1509 | FALSE, /* partial_inplace */ | |
1510 | 0, /* src_mask */ | |
1511 | 0xffff, /* dst_mask */ | |
1512 | FALSE), /* pcrel_offset */ | |
1513 | ||
1514 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1515 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1516 | 48, /* rightshift */ | |
1517 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1518 | 16, /* bitsize */ | |
1519 | FALSE, /* pc_relative */ | |
1520 | 0, /* bitpos */ | |
1521 | complain_overflow_dont, /* complain_on_overflow */ | |
1522 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1523 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1524 | FALSE, /* partial_inplace */ | |
1525 | 0, /* src_mask */ | |
1526 | 0xffff, /* dst_mask */ | |
1527 | FALSE), /* pcrel_offset */ | |
1528 | ||
1529 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1530 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1531 | 48, /* rightshift */ | |
1532 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1533 | 16, /* bitsize */ | |
1534 | FALSE, /* pc_relative */ | |
1535 | 0, /* bitpos */ | |
1536 | complain_overflow_dont, /* complain_on_overflow */ | |
1537 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1538 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1539 | FALSE, /* partial_inplace */ | |
1540 | 0, /* src_mask */ | |
1541 | 0xffff, /* dst_mask */ | |
1542 | FALSE), /* pcrel_offset */ | |
1543 | ||
1544 | /* Like TPREL16, but for insns with a DS field. */ | |
1545 | HOWTO (R_PPC64_TPREL16_DS, | |
1546 | 0, /* rightshift */ | |
1547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1548 | 16, /* bitsize */ | |
1549 | FALSE, /* pc_relative */ | |
1550 | 0, /* bitpos */ | |
1551 | complain_overflow_signed, /* complain_on_overflow */ | |
1552 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1553 | "R_PPC64_TPREL16_DS", /* name */ | |
1554 | FALSE, /* partial_inplace */ | |
1555 | 0, /* src_mask */ | |
1556 | 0xfffc, /* dst_mask */ | |
1557 | FALSE), /* pcrel_offset */ | |
1558 | ||
1559 | /* Like TPREL16_DS, but no overflow. */ | |
1560 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1561 | 0, /* rightshift */ | |
1562 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1563 | 16, /* bitsize */ | |
1564 | FALSE, /* pc_relative */ | |
1565 | 0, /* bitpos */ | |
1566 | complain_overflow_dont, /* complain_on_overflow */ | |
1567 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1568 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1569 | FALSE, /* partial_inplace */ | |
1570 | 0, /* src_mask */ | |
1571 | 0xfffc, /* dst_mask */ | |
1572 | FALSE), /* pcrel_offset */ | |
1573 | ||
1574 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1575 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1576 | to the first entry relative to the TOC base (r2). */ | |
1577 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1578 | 0, /* rightshift */ | |
1579 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1580 | 16, /* bitsize */ | |
1581 | FALSE, /* pc_relative */ | |
1582 | 0, /* bitpos */ | |
1583 | complain_overflow_signed, /* complain_on_overflow */ | |
1584 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1585 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1586 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1587 | 0, /* src_mask */ |
1588 | 0xffff, /* dst_mask */ | |
b34976b6 | 1589 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1590 | |
411e1bfb AM |
1591 | /* Like GOT_TLSGD16, but no overflow. */ |
1592 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1593 | 0, /* rightshift */ |
1594 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1595 | 16, /* bitsize */ | |
b34976b6 | 1596 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1597 | 0, /* bitpos */ |
1598 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1599 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1600 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1601 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1602 | 0, /* src_mask */ |
1603 | 0xffff, /* dst_mask */ | |
b34976b6 | 1604 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1605 | |
411e1bfb AM |
1606 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1607 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1608 | 16, /* rightshift */ |
1609 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1610 | 16, /* bitsize */ | |
b34976b6 | 1611 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1612 | 0, /* bitpos */ |
1613 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1614 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1615 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1616 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1617 | 0, /* src_mask */ |
1618 | 0xffff, /* dst_mask */ | |
b34976b6 | 1619 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1620 | |
411e1bfb AM |
1621 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1622 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1623 | 16, /* rightshift */ |
1624 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1625 | 16, /* bitsize */ | |
b34976b6 | 1626 | FALSE, /* pc_relative */ |
5bd4f169 | 1627 | 0, /* bitpos */ |
411e1bfb | 1628 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1629 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1630 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1631 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1632 | 0, /* src_mask */ |
1633 | 0xffff, /* dst_mask */ | |
b34976b6 | 1634 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1635 | |
411e1bfb AM |
1636 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1637 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1638 | first entry relative to the TOC base (r2). */ | |
1639 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1640 | 0, /* rightshift */ |
1641 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1642 | 16, /* bitsize */ | |
b34976b6 | 1643 | FALSE, /* pc_relative */ |
5bd4f169 | 1644 | 0, /* bitpos */ |
411e1bfb AM |
1645 | complain_overflow_signed, /* complain_on_overflow */ |
1646 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1647 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1648 | FALSE, /* partial_inplace */ |
d006db6c | 1649 | 0, /* src_mask */ |
411e1bfb | 1650 | 0xffff, /* dst_mask */ |
b34976b6 | 1651 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1652 | |
411e1bfb AM |
1653 | /* Like GOT_TLSLD16, but no overflow. */ |
1654 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1655 | 0, /* rightshift */ |
1656 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1657 | 16, /* bitsize */ | |
b34976b6 | 1658 | FALSE, /* pc_relative */ |
5bd4f169 | 1659 | 0, /* bitpos */ |
411e1bfb AM |
1660 | complain_overflow_dont, /* complain_on_overflow */ |
1661 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1662 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1663 | FALSE, /* partial_inplace */ |
d006db6c | 1664 | 0, /* src_mask */ |
411e1bfb | 1665 | 0xffff, /* dst_mask */ |
b34976b6 | 1666 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1667 | |
411e1bfb AM |
1668 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1669 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1670 | 16, /* rightshift */ | |
5bd4f169 AM |
1671 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1672 | 16, /* bitsize */ | |
b34976b6 | 1673 | FALSE, /* pc_relative */ |
5bd4f169 | 1674 | 0, /* bitpos */ |
411e1bfb | 1675 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1676 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1677 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1678 | FALSE, /* partial_inplace */ |
d006db6c | 1679 | 0, /* src_mask */ |
411e1bfb | 1680 | 0xffff, /* dst_mask */ |
b34976b6 | 1681 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1682 | |
411e1bfb AM |
1683 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1684 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1685 | 16, /* rightshift */ | |
5bd4f169 AM |
1686 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1687 | 16, /* bitsize */ | |
b34976b6 | 1688 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1689 | 0, /* bitpos */ |
1690 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1691 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1692 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1693 | FALSE, /* partial_inplace */ |
d006db6c | 1694 | 0, /* src_mask */ |
411e1bfb | 1695 | 0xffff, /* dst_mask */ |
b34976b6 | 1696 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1697 | |
411e1bfb AM |
1698 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1699 | the offset to the entry relative to the TOC base (r2). */ | |
1700 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1701 | 0, /* rightshift */ |
1702 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1703 | 16, /* bitsize */ | |
b34976b6 | 1704 | FALSE, /* pc_relative */ |
5bd4f169 | 1705 | 0, /* bitpos */ |
411e1bfb | 1706 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1707 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1708 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1709 | FALSE, /* partial_inplace */ |
d006db6c | 1710 | 0, /* src_mask */ |
5bd4f169 | 1711 | 0xfffc, /* dst_mask */ |
b34976b6 | 1712 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1713 | |
411e1bfb AM |
1714 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1715 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1716 | 0, /* rightshift */ |
c061c2d8 AM |
1717 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1718 | 16, /* bitsize */ | |
b34976b6 | 1719 | FALSE, /* pc_relative */ |
5bd4f169 | 1720 | 0, /* bitpos */ |
411e1bfb AM |
1721 | complain_overflow_dont, /* complain_on_overflow */ |
1722 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1723 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1724 | FALSE, /* partial_inplace */ |
d006db6c | 1725 | 0, /* src_mask */ |
c061c2d8 | 1726 | 0xfffc, /* dst_mask */ |
b34976b6 | 1727 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1728 | |
411e1bfb AM |
1729 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1730 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1731 | 16, /* rightshift */ | |
5bd4f169 AM |
1732 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1733 | 16, /* bitsize */ | |
b34976b6 | 1734 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1735 | 0, /* bitpos */ |
1736 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1737 | ppc64_elf_unhandled_reloc, /* special_function */ |
1738 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1739 | FALSE, /* partial_inplace */ |
d006db6c | 1740 | 0, /* src_mask */ |
411e1bfb | 1741 | 0xffff, /* dst_mask */ |
b34976b6 | 1742 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1743 | |
411e1bfb AM |
1744 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1745 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1746 | 16, /* rightshift */ | |
1747 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1748 | 16, /* bitsize */ | |
1749 | FALSE, /* pc_relative */ | |
1750 | 0, /* bitpos */ | |
1751 | complain_overflow_dont, /* complain_on_overflow */ | |
1752 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1753 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1754 | FALSE, /* partial_inplace */ | |
1755 | 0, /* src_mask */ | |
1756 | 0xffff, /* dst_mask */ | |
1757 | FALSE), /* pcrel_offset */ | |
1758 | ||
1759 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1760 | offset to the entry relative to the TOC base (r2). */ | |
1761 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1762 | 0, /* rightshift */ |
1763 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1764 | 16, /* bitsize */ | |
b34976b6 | 1765 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1766 | 0, /* bitpos */ |
1767 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1768 | ppc64_elf_unhandled_reloc, /* special_function */ |
1769 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1770 | FALSE, /* partial_inplace */ |
d006db6c | 1771 | 0, /* src_mask */ |
ad8e1ba5 | 1772 | 0xfffc, /* dst_mask */ |
b34976b6 | 1773 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1774 | |
411e1bfb AM |
1775 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1776 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1777 | 0, /* rightshift */ |
1778 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1779 | 16, /* bitsize */ | |
b34976b6 | 1780 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1781 | 0, /* bitpos */ |
1782 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1783 | ppc64_elf_unhandled_reloc, /* special_function */ |
1784 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1785 | FALSE, /* partial_inplace */ |
d006db6c | 1786 | 0, /* src_mask */ |
ad8e1ba5 | 1787 | 0xfffc, /* dst_mask */ |
b34976b6 | 1788 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1789 | |
411e1bfb AM |
1790 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1791 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1792 | 16, /* rightshift */ | |
5bd4f169 AM |
1793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1794 | 16, /* bitsize */ | |
b34976b6 | 1795 | FALSE, /* pc_relative */ |
5bd4f169 | 1796 | 0, /* bitpos */ |
411e1bfb | 1797 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1798 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1799 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1800 | FALSE, /* partial_inplace */ |
d006db6c | 1801 | 0, /* src_mask */ |
411e1bfb | 1802 | 0xffff, /* dst_mask */ |
b34976b6 | 1803 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1804 | |
411e1bfb AM |
1805 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1806 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1807 | 16, /* rightshift */ | |
5bd4f169 AM |
1808 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1809 | 16, /* bitsize */ | |
b34976b6 | 1810 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1811 | 0, /* bitpos */ |
1812 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1813 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1814 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1815 | FALSE, /* partial_inplace */ |
d006db6c | 1816 | 0, /* src_mask */ |
411e1bfb | 1817 | 0xffff, /* dst_mask */ |
b34976b6 | 1818 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1819 | |
1820 | /* GNU extension to record C++ vtable hierarchy. */ | |
1821 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1822 | 0, /* rightshift */ | |
1823 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1824 | 0, /* bitsize */ | |
b34976b6 | 1825 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1826 | 0, /* bitpos */ |
1827 | complain_overflow_dont, /* complain_on_overflow */ | |
1828 | NULL, /* special_function */ | |
1829 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1830 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1831 | 0, /* src_mask */ |
1832 | 0, /* dst_mask */ | |
b34976b6 | 1833 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1834 | |
1835 | /* GNU extension to record C++ vtable member usage. */ | |
1836 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1837 | 0, /* rightshift */ | |
1838 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1839 | 0, /* bitsize */ | |
b34976b6 | 1840 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1841 | 0, /* bitpos */ |
1842 | complain_overflow_dont, /* complain_on_overflow */ | |
1843 | NULL, /* special_function */ | |
1844 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1845 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1846 | 0, /* src_mask */ |
1847 | 0, /* dst_mask */ | |
b34976b6 | 1848 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1849 | }; |
1850 | ||
1851 | \f | |
1852 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1853 | be done. */ | |
1854 | ||
1855 | static void | |
4ce794b7 | 1856 | ppc_howto_init (void) |
5bd4f169 AM |
1857 | { |
1858 | unsigned int i, type; | |
1859 | ||
1860 | for (i = 0; | |
1861 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1862 | i++) | |
1863 | { | |
1864 | type = ppc64_elf_howto_raw[i].type; | |
1865 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1866 | / sizeof (ppc64_elf_howto_table[0]))); | |
1867 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1868 | } | |
1869 | } | |
1870 | ||
1871 | static reloc_howto_type * | |
4ce794b7 AM |
1872 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1873 | bfd_reloc_code_real_type code) | |
5bd4f169 | 1874 | { |
411e1bfb | 1875 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1876 | |
1877 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1878 | /* Initialize howto table if needed. */ | |
1879 | ppc_howto_init (); | |
1880 | ||
4ce794b7 | 1881 | switch (code) |
5bd4f169 AM |
1882 | { |
1883 | default: | |
4ce794b7 | 1884 | return NULL; |
5bd4f169 | 1885 | |
411e1bfb AM |
1886 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1887 | break; | |
1888 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1889 | break; | |
1890 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1891 | break; | |
1892 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1893 | break; | |
1894 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1895 | break; | |
1896 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1897 | break; | |
1898 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1899 | break; |
411e1bfb | 1900 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1901 | break; |
411e1bfb | 1902 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1903 | break; |
411e1bfb | 1904 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1905 | break; |
411e1bfb | 1906 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1907 | break; |
411e1bfb | 1908 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1909 | break; |
411e1bfb | 1910 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1911 | break; |
411e1bfb | 1912 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1913 | break; |
411e1bfb | 1914 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1967 | break; |
411e1bfb | 1968 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1969 | break; |
411e1bfb | 1970 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1971 | break; |
411e1bfb | 1972 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1973 | break; |
411e1bfb | 1974 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1975 | break; |
411e1bfb | 1976 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1977 | break; |
411e1bfb | 1978 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1979 | break; |
411e1bfb | 1980 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1981 | break; |
411e1bfb | 1982 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1983 | break; |
411e1bfb | 1984 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 1985 | break; |
411e1bfb | 1986 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 1987 | break; |
411e1bfb | 1988 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 1989 | break; |
411e1bfb | 1990 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 1991 | break; |
411e1bfb | 1992 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 1993 | break; |
411e1bfb | 1994 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 1995 | break; |
411e1bfb | 1996 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 1997 | break; |
411e1bfb | 1998 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 1999 | break; |
411e1bfb | 2000 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 2001 | break; |
411e1bfb | 2002 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 2003 | break; |
411e1bfb | 2004 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 2005 | break; |
411e1bfb | 2006 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2007 | break; |
411e1bfb | 2008 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2009 | break; |
411e1bfb | 2010 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2011 | break; |
411e1bfb | 2012 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2013 | break; |
411e1bfb | 2014 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2015 | break; |
411e1bfb | 2016 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2017 | break; |
411e1bfb AM |
2018 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2019 | break; | |
2020 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2021 | break; | |
2022 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2023 | break; | |
2024 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2025 | break; | |
2026 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2027 | break; | |
2028 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2029 | break; | |
2030 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2031 | break; | |
2032 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2033 | break; | |
2034 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2035 | break; | |
2036 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2037 | break; | |
2038 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2039 | break; | |
2040 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2041 | break; | |
2042 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2043 | break; | |
2044 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2045 | break; | |
2046 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2047 | break; | |
2048 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2049 | break; | |
2050 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2051 | break; | |
2052 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2053 | break; | |
2054 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2055 | break; | |
2056 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2057 | break; | |
2058 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2059 | break; | |
2060 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2061 | break; | |
2062 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2063 | break; | |
2064 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2065 | break; | |
2066 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2067 | break; | |
2068 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2069 | break; | |
2070 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2071 | break; | |
2072 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2073 | break; | |
2074 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2075 | break; | |
2076 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2077 | break; | |
2078 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2079 | break; | |
2080 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2081 | break; | |
2082 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2083 | break; | |
2084 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2085 | break; | |
2086 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2087 | break; |
2088 | } | |
2089 | ||
4ce794b7 | 2090 | return ppc64_elf_howto_table[r]; |
5bd4f169 AM |
2091 | }; |
2092 | ||
2093 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2094 | ||
2095 | static void | |
4ce794b7 AM |
2096 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
2097 | Elf_Internal_Rela *dst) | |
5bd4f169 | 2098 | { |
65f38f15 AM |
2099 | unsigned int type; |
2100 | ||
ef60b7ff | 2101 | /* Initialize howto table if needed. */ |
5bd4f169 | 2102 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2103 | ppc_howto_init (); |
2104 | ||
65f38f15 AM |
2105 | type = ELF64_R_TYPE (dst->r_info); |
2106 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2107 | / sizeof (ppc64_elf_howto_table[0]))); | |
2108 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2109 | } |
2110 | ||
04c9666a | 2111 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2112 | |
2113 | static bfd_reloc_status_type | |
4ce794b7 AM |
2114 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2115 | void *data, asection *input_section, | |
2116 | bfd *output_bfd, char **error_message) | |
5bd4f169 | 2117 | { |
805fc799 AM |
2118 | /* If this is a relocatable link (output_bfd test tells us), just |
2119 | call the generic function. Any adjustment will be done at final | |
2120 | link time. */ | |
2121 | if (output_bfd != NULL) | |
cedb70c5 | 2122 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2123 | input_section, output_bfd, error_message); |
2124 | ||
2125 | /* Adjust the addend for sign extension of the low 16 bits. | |
2126 | We won't actually be using the low 16 bits, so trashing them | |
2127 | doesn't matter. */ | |
2128 | reloc_entry->addend += 0x8000; | |
2129 | return bfd_reloc_continue; | |
2130 | } | |
5bd4f169 | 2131 | |
805fc799 | 2132 | static bfd_reloc_status_type |
4ce794b7 AM |
2133 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2134 | void *data, asection *input_section, | |
2135 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2136 | { |
2137 | long insn; | |
04c9666a | 2138 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2139 | bfd_size_type octets; |
2140 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2141 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2142 | |
2143 | /* If this is a relocatable link (output_bfd test tells us), just | |
2144 | call the generic function. Any adjustment will be done at final | |
2145 | link time. */ | |
5bd4f169 | 2146 | if (output_bfd != NULL) |
cedb70c5 | 2147 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2148 | input_section, output_bfd, error_message); |
2149 | ||
2150 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2151 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2152 | insn &= ~(0x01 << 21); | |
4ce794b7 | 2153 | r_type = reloc_entry->howto->type; |
805fc799 AM |
2154 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2155 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2156 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2157 | |
2158 | if (is_power4) | |
5bd4f169 | 2159 | { |
805fc799 AM |
2160 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2161 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2162 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2163 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2164 | insn |= 0x02 << 21; | |
2165 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2166 | insn |= 0x08 << 21; | |
2167 | else | |
2168 | return bfd_reloc_continue; | |
5bd4f169 | 2169 | } |
805fc799 AM |
2170 | else |
2171 | { | |
2172 | bfd_vma target = 0; | |
2173 | bfd_vma from; | |
5bd4f169 | 2174 | |
805fc799 AM |
2175 | if (!bfd_is_com_section (symbol->section)) |
2176 | target = symbol->value; | |
2177 | target += symbol->section->output_section->vma; | |
2178 | target += symbol->section->output_offset; | |
2179 | target += reloc_entry->addend; | |
5bd4f169 | 2180 | |
805fc799 AM |
2181 | from = (reloc_entry->address |
2182 | + input_section->output_offset | |
2183 | + input_section->output_section->vma); | |
5bd4f169 | 2184 | |
805fc799 AM |
2185 | /* Invert 'y' bit if not the default. */ |
2186 | if ((bfd_signed_vma) (target - from) < 0) | |
2187 | insn ^= 0x01 << 21; | |
2188 | } | |
4ce794b7 | 2189 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
805fc799 AM |
2190 | return bfd_reloc_continue; |
2191 | } | |
5bd4f169 | 2192 | |
805fc799 | 2193 | static bfd_reloc_status_type |
4ce794b7 AM |
2194 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2195 | void *data, asection *input_section, | |
2196 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2197 | { |
2198 | /* If this is a relocatable link (output_bfd test tells us), just | |
2199 | call the generic function. Any adjustment will be done at final | |
2200 | link time. */ | |
2201 | if (output_bfd != NULL) | |
cedb70c5 | 2202 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2203 | input_section, output_bfd, error_message); |
5bd4f169 | 2204 | |
805fc799 AM |
2205 | /* Subtract the symbol section base address. */ |
2206 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2207 | return bfd_reloc_continue; |
2208 | } | |
2209 | ||
805fc799 | 2210 | static bfd_reloc_status_type |
4ce794b7 AM |
2211 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2212 | void *data, asection *input_section, | |
2213 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2214 | { |
2215 | /* If this is a relocatable link (output_bfd test tells us), just | |
2216 | call the generic function. Any adjustment will be done at final | |
2217 | link time. */ | |
2218 | if (output_bfd != NULL) | |
cedb70c5 | 2219 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2220 | input_section, output_bfd, error_message); |
2221 | ||
2222 | /* Subtract the symbol section base address. */ | |
2223 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2224 | ||
2225 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2226 | reloc_entry->addend += 0x8000; | |
2227 | return bfd_reloc_continue; | |
2228 | } | |
2229 | ||
2230 | static bfd_reloc_status_type | |
4ce794b7 AM |
2231 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2232 | void *data, asection *input_section, | |
2233 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2234 | { |
2235 | bfd_vma TOCstart; | |
2236 | ||
2237 | /* If this is a relocatable link (output_bfd test tells us), just | |
2238 | call the generic function. Any adjustment will be done at final | |
2239 | link time. */ | |
2240 | if (output_bfd != NULL) | |
cedb70c5 | 2241 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2242 | input_section, output_bfd, error_message); |
2243 | ||
2244 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2245 | if (TOCstart == 0) | |
2246 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2247 | ||
2248 | /* Subtract the TOC base address. */ | |
2249 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2250 | return bfd_reloc_continue; | |
2251 | } | |
2252 | ||
2253 | static bfd_reloc_status_type | |
4ce794b7 AM |
2254 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2255 | void *data, asection *input_section, | |
2256 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2257 | { |
2258 | bfd_vma TOCstart; | |
2259 | ||
2260 | /* If this is a relocatable link (output_bfd test tells us), just | |
2261 | call the generic function. Any adjustment will be done at final | |
2262 | link time. */ | |
2263 | if (output_bfd != NULL) | |
cedb70c5 | 2264 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2265 | input_section, output_bfd, error_message); |
2266 | ||
2267 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2268 | if (TOCstart == 0) | |
2269 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2270 | ||
2271 | /* Subtract the TOC base address. */ | |
2272 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2273 | ||
2274 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2275 | reloc_entry->addend += 0x8000; | |
2276 | return bfd_reloc_continue; | |
2277 | } | |
2278 | ||
2279 | static bfd_reloc_status_type | |
4ce794b7 AM |
2280 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2281 | void *data, asection *input_section, | |
2282 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2283 | { |
2284 | bfd_vma TOCstart; | |
2285 | bfd_size_type octets; | |
2286 | ||
2287 | /* If this is a relocatable link (output_bfd test tells us), just | |
2288 | call the generic function. Any adjustment will be done at final | |
2289 | link time. */ | |
2290 | if (output_bfd != NULL) | |
cedb70c5 | 2291 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2292 | input_section, output_bfd, error_message); |
2293 | ||
2294 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2295 | if (TOCstart == 0) | |
2296 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2297 | ||
2298 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2299 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2300 | return bfd_reloc_ok; | |
2301 | } | |
2302 | ||
2303 | static bfd_reloc_status_type | |
4ce794b7 AM |
2304 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2305 | void *data, asection *input_section, | |
2306 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2307 | { |
2308 | /* If this is a relocatable link (output_bfd test tells us), just | |
2309 | call the generic function. Any adjustment will be done at final | |
2310 | link time. */ | |
2311 | if (output_bfd != NULL) | |
cedb70c5 | 2312 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2313 | input_section, output_bfd, error_message); |
2314 | ||
2315 | if (error_message != NULL) | |
2316 | { | |
2317 | static char buf[60]; | |
2318 | sprintf (buf, "generic linker can't handle %s", | |
2319 | reloc_entry->howto->name); | |
2320 | *error_message = buf; | |
2321 | } | |
2322 | return bfd_reloc_dangerous; | |
2323 | } | |
2324 | ||
e717da7e AM |
2325 | struct ppc64_elf_obj_tdata |
2326 | { | |
2327 | struct elf_obj_tdata elf; | |
2328 | ||
2329 | /* Shortcuts to dynamic linker sections. */ | |
2330 | asection *got; | |
2331 | asection *relgot; | |
2332 | ||
2333 | /* TLS local dynamic got entry handling. Suppose for multiple GOT | |
2334 | sections means we potentially need one of these for each input bfd. */ | |
2335 | union { | |
2336 | bfd_signed_vma refcount; | |
2337 | bfd_vma offset; | |
2338 | } tlsld_got; | |
2339 | }; | |
2340 | ||
2341 | #define ppc64_elf_tdata(bfd) \ | |
2342 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
2343 | ||
2344 | #define ppc64_tlsld_got(bfd) \ | |
2345 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
2346 | ||
2347 | /* Override the generic function because we store some extras. */ | |
2348 | ||
2349 | static bfd_boolean | |
2350 | ppc64_elf_mkobject (bfd *abfd) | |
2351 | { | |
2352 | bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata); | |
2353 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
2354 | if (abfd->tdata.any == NULL) | |
2355 | return FALSE; | |
2356 | return TRUE; | |
2357 | } | |
2358 | ||
feee612b AM |
2359 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2360 | default is 32 bit. */ | |
2361 | ||
b34976b6 | 2362 | static bfd_boolean |
4ce794b7 | 2363 | ppc64_elf_object_p (bfd *abfd) |
feee612b AM |
2364 | { |
2365 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2366 | { | |
2367 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2368 | ||
2369 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2370 | { | |
2371 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2372 | abfd->arch_info = abfd->arch_info->next; | |
2373 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2374 | } | |
2375 | } | |
b34976b6 | 2376 | return TRUE; |
feee612b AM |
2377 | } |
2378 | ||
d37c89e5 AM |
2379 | /* Support for core dump NOTE sections. */ |
2380 | ||
2381 | static bfd_boolean | |
2382 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2383 | { | |
2384 | size_t offset, raw_size; | |
2385 | ||
2386 | if (note->descsz != 504) | |
2387 | return FALSE; | |
2388 | ||
2389 | /* pr_cursig */ | |
2390 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
2391 | ||
2392 | /* pr_pid */ | |
2393 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32); | |
2394 | ||
2395 | /* pr_reg */ | |
2396 | offset = 112; | |
2397 | raw_size = 384; | |
2398 | ||
2399 | /* Make a ".reg/999" section. */ | |
2400 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2401 | raw_size, note->descpos + offset); | |
2402 | } | |
2403 | ||
2404 | static bfd_boolean | |
2405 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2406 | { | |
2407 | if (note->descsz != 136) | |
2408 | return FALSE; | |
2409 | ||
2410 | elf_tdata (abfd)->core_program | |
2411 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); | |
2412 | elf_tdata (abfd)->core_command | |
2413 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); | |
2414 | ||
2415 | return TRUE; | |
2416 | } | |
2417 | ||
5bd4f169 AM |
2418 | /* Merge backend specific data from an object file to the output |
2419 | object file when linking. */ | |
2f6d9989 | 2420 | |
b34976b6 | 2421 | static bfd_boolean |
4ce794b7 | 2422 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5bd4f169 | 2423 | { |
5bd4f169 AM |
2424 | /* Check if we have the same endianess. */ |
2425 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2426 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2427 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2428 | { | |
2429 | const char *msg; | |
2430 | ||
2431 | if (bfd_big_endian (ibfd)) | |
4ce794b7 AM |
2432 | msg = _("%s: compiled for a big endian system " |
2433 | "and target is little endian"); | |
5bd4f169 | 2434 | else |
4ce794b7 AM |
2435 | msg = _("%s: compiled for a little endian system " |
2436 | "and target is big endian"); | |
5bd4f169 | 2437 | |
8f615d07 | 2438 | (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd)); |
5bd4f169 AM |
2439 | |
2440 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2441 | return FALSE; |
5bd4f169 AM |
2442 | } |
2443 | ||
b34976b6 | 2444 | return TRUE; |
5bd4f169 | 2445 | } |
f0abc2a1 | 2446 | |
5d35169e AM |
2447 | /* Add extra PPC sections. */ |
2448 | ||
2449 | static struct bfd_elf_special_section const ppc64_elf_special_sections[]= | |
2450 | { | |
7dcb9820 AM |
2451 | { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
2452 | { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2453 | { ".plt", 4, 0, SHT_NOBITS, 0 }, | |
2454 | { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2455 | { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2456 | { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2457 | { NULL, 0, 0, 0, 0 } | |
5d35169e AM |
2458 | }; |
2459 | ||
f0abc2a1 AM |
2460 | struct _ppc64_elf_section_data |
2461 | { | |
2462 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2463 | |
2464 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2465 | union |
2466 | { | |
411e1bfb | 2467 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2468 | asection **func_sec; |
411e1bfb | 2469 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2470 | long *adjust; |
2471 | } opd; | |
411e1bfb AM |
2472 | |
2473 | /* An array for toc sections, indexed by offset/8. | |
2474 | Specifies the relocation symbol index used at a given toc offset. */ | |
2475 | unsigned *t_symndx; | |
f0abc2a1 AM |
2476 | }; |
2477 | ||
2478 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2479 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2480 | |
2481 | static bfd_boolean | |
4ce794b7 | 2482 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
f0abc2a1 AM |
2483 | { |
2484 | struct _ppc64_elf_section_data *sdata; | |
2485 | bfd_size_type amt = sizeof (*sdata); | |
2486 | ||
4ce794b7 | 2487 | sdata = bfd_zalloc (abfd, amt); |
f0abc2a1 AM |
2488 | if (sdata == NULL) |
2489 | return FALSE; | |
4ce794b7 | 2490 | sec->used_by_bfd = sdata; |
f0abc2a1 AM |
2491 | |
2492 | return _bfd_elf_new_section_hook (abfd, sec); | |
2493 | } | |
5bd4f169 | 2494 | \f |
65f38f15 AM |
2495 | /* The following functions are specific to the ELF linker, while |
2496 | functions above are used generally. Those named ppc64_elf_* are | |
2497 | called by the main ELF linker code. They appear in this file more | |
2498 | or less in the order in which they are called. eg. | |
2499 | ppc64_elf_check_relocs is called early in the link process, | |
2500 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2501 | called. |
2502 | ||
2503 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2504 | functions have both a function code symbol and a function descriptor | |
2505 | symbol. A call to foo in a relocatable object file looks like: | |
2506 | ||
2507 | . .text | |
2508 | . x: | |
2509 | . bl .foo | |
2510 | . nop | |
2511 | ||
2512 | The function definition in another object file might be: | |
2513 | ||
2514 | . .section .opd | |
2515 | . foo: .quad .foo | |
2516 | . .quad .TOC.@tocbase | |
2517 | . .quad 0 | |
2518 | . | |
2519 | . .text | |
2520 | . .foo: blr | |
2521 | ||
2522 | When the linker resolves the call during a static link, the branch | |
2523 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2524 | If the function definition is in a shared library, things are a little | |
2525 | different: The call goes via a plt call stub, the opd information gets | |
2526 | copied to the plt, and the linker patches the nop. | |
2527 | ||
2528 | . x: | |
2529 | . bl .foo_stub | |
2530 | . ld 2,40(1) | |
2531 | . | |
2532 | . | |
2533 | . .foo_stub: | |
2534 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2535 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2536 | . std 2,40(1) # this is the general idea |
2537 | . ld 11,0(12) | |
2538 | . ld 2,8(12) | |
2539 | . mtctr 11 | |
2540 | . ld 11,16(12) | |
2541 | . bctr | |
2542 | . | |
2543 | . .section .plt | |
2544 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2545 | ||
2546 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2547 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2548 | copying. | |
2549 | ||
2550 | What are the difficulties here? Well, firstly, the relocations | |
2551 | examined by the linker in check_relocs are against the function code | |
2552 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2553 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2554 | to carefully copy dynamic link information from one symbol to the other. | |
2555 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2556 | symbol as is normal for most other backends. We need foo dynamic | |
2557 | instead, at least for an application final link. However, when | |
2558 | creating a shared library containing foo, we need to have both symbols | |
2559 | dynamic so that references to .foo are satisfied during the early | |
2560 | stages of linking. Otherwise the linker might decide to pull in a | |
41bd81ab | 2561 | definition from some other object, eg. a static library. */ |
65f38f15 AM |
2562 | |
2563 | /* The linker needs to keep track of the number of relocs that it | |
2564 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2565 | This is so that it can later discard them if they are found to be | |
2566 | unnecessary. We store the information in a field extending the | |
2567 | regular ELF linker hash table. */ | |
2568 | ||
2569 | struct ppc_dyn_relocs | |
2570 | { | |
2571 | struct ppc_dyn_relocs *next; | |
2572 | ||
2573 | /* The input section of the reloc. */ | |
2574 | asection *sec; | |
2575 | ||
2576 | /* Total number of relocs copied for the input section. */ | |
2577 | bfd_size_type count; | |
2578 | ||
2579 | /* Number of pc-relative relocs copied for the input section. */ | |
2580 | bfd_size_type pc_count; | |
2581 | }; | |
2582 | ||
411e1bfb AM |
2583 | /* Track GOT entries needed for a given symbol. We might need more |
2584 | than one got entry per symbol. */ | |
2585 | struct got_entry | |
2586 | { | |
2587 | struct got_entry *next; | |
2588 | ||
e7b938ca | 2589 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
2590 | bfd_vma addend; |
2591 | ||
e717da7e AM |
2592 | /* Unlike other ELF targets, we use separate GOT entries for the same |
2593 | symbol referenced from different input files. This is to support | |
2594 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
2595 | from one input file to another. | |
2596 | ||
2597 | Point to the BFD owning this GOT entry. */ | |
2598 | bfd *owner; | |
2599 | ||
2600 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
2601 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
2602 | char tls_type; | |
2603 | ||
e7b938ca | 2604 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
2605 | union |
2606 | { | |
2607 | bfd_signed_vma refcount; | |
2608 | bfd_vma offset; | |
2609 | } got; | |
411e1bfb AM |
2610 | }; |
2611 | ||
2612 | /* The same for PLT. */ | |
2613 | struct plt_entry | |
2614 | { | |
2615 | struct plt_entry *next; | |
2616 | ||
2617 | bfd_vma addend; | |
2618 | ||
2619 | union | |
2620 | { | |
2621 | bfd_signed_vma refcount; | |
2622 | bfd_vma offset; | |
2623 | } plt; | |
2624 | }; | |
2625 | ||
65f38f15 | 2626 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
2627 | selects those that must be copied when linking a shared library, |
2628 | even when the symbol is local. */ | |
65f38f15 | 2629 | |
411e1bfb | 2630 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
2631 | ((RTYPE) != R_PPC64_REL32 \ |
2632 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 2633 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 2634 | |
f4656909 AM |
2635 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2636 | copying dynamic variables from a shared lib into an app's dynbss | |
2637 | section, and instead use a dynamic relocation to point into the | |
5d35169e AM |
2638 | shared lib. With code that gcc generates, it's vital that this be |
2639 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
2640 | the address of a function descriptor, which resides in the .opd | |
2641 | section. gcc uses the descriptor directly rather than going via the | |
2642 | GOT as some other ABI's do, which means that initialized function | |
2643 | pointers must reference the descriptor. Thus, a function pointer | |
2644 | initialized to the address of a function in a shared library will | |
2645 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
4cc11e76 | 2646 | redefines the function descriptor symbol to point to the copy. This |
5d35169e AM |
2647 | presents a problem as a plt entry for that function is also |
2648 | initialized from the function descriptor symbol and the copy reloc | |
2649 | may not be initialized first. */ | |
a23b6845 | 2650 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 2651 | |
721956f4 AM |
2652 | /* Section name for stubs is the associated section name plus this |
2653 | string. */ | |
2654 | #define STUB_SUFFIX ".stub" | |
2655 | ||
2656 | /* Linker stubs. | |
2657 | ppc_stub_long_branch: | |
2658 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
2659 | destination, but a 24 bit branch in a stub section will reach. | |
2660 | . b dest | |
2661 | ||
2662 | ppc_stub_plt_branch: | |
2663 | Similar to the above, but a 24 bit branch in the stub section won't | |
2664 | reach its destination. | |
87e226ce AM |
2665 | . addis %r12,%r2,xxx@toc@ha |
2666 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
2667 | . mtctr %r11 |
2668 | . bctr | |
2669 | ||
2670 | ppc_stub_plt_call: | |
2671 | Used to call a function in a shared library. | |
87e226ce | 2672 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 2673 | . std %r2,40(%r1) |
87e226ce AM |
2674 | . ld %r11,xxx+0@toc@l(%r12) |
2675 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 2676 | . mtctr %r11 |
87e226ce | 2677 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 2678 | . bctr |
ad8e1ba5 AM |
2679 | |
2680 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
2681 | code to adjust the value and save r2 to support multiple toc sections. | |
2682 | A ppc_stub_long_branch with an r2 offset looks like: | |
2683 | . std %r2,40(%r1) | |
2684 | . addis %r2,%r2,off@ha | |
2685 | . addi %r2,%r2,off@l | |
2686 | . b dest | |
2687 | ||
2688 | A ppc_stub_plt_branch with an r2 offset looks like: | |
2689 | . std %r2,40(%r1) | |
2690 | . addis %r12,%r2,xxx@toc@ha | |
2691 | . ld %r11,xxx@toc@l(%r12) | |
2692 | . addis %r2,%r2,off@ha | |
2693 | . addi %r2,%r2,off@l | |
2694 | . mtctr %r11 | |
2695 | . bctr | |
721956f4 AM |
2696 | */ |
2697 | ||
2698 | enum ppc_stub_type { | |
2699 | ppc_stub_none, | |
2700 | ppc_stub_long_branch, | |
ad8e1ba5 | 2701 | ppc_stub_long_branch_r2off, |
721956f4 | 2702 | ppc_stub_plt_branch, |
ad8e1ba5 | 2703 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
2704 | ppc_stub_plt_call |
2705 | }; | |
2706 | ||
2707 | struct ppc_stub_hash_entry { | |
2708 | ||
2709 | /* Base hash table entry structure. */ | |
2710 | struct bfd_hash_entry root; | |
2711 | ||
ad8e1ba5 AM |
2712 | enum ppc_stub_type stub_type; |
2713 | ||
721956f4 AM |
2714 | /* The stub section. */ |
2715 | asection *stub_sec; | |
2716 | ||
2717 | /* Offset within stub_sec of the beginning of this stub. */ | |
2718 | bfd_vma stub_offset; | |
2719 | ||
2720 | /* Given the symbol's value and its section we can determine its final | |
2721 | value when building the stubs (so the stub knows where to jump. */ | |
2722 | bfd_vma target_value; | |
2723 | asection *target_section; | |
2724 | ||
721956f4 AM |
2725 | /* The symbol table entry, if any, that this was derived from. */ |
2726 | struct ppc_link_hash_entry *h; | |
2727 | ||
411e1bfb AM |
2728 | /* And the reloc addend that this was derived from. */ |
2729 | bfd_vma addend; | |
2730 | ||
721956f4 AM |
2731 | /* Where this stub is being called from, or, in the case of combined |
2732 | stub sections, the first input section in the group. */ | |
2733 | asection *id_sec; | |
2734 | }; | |
2735 | ||
2736 | struct ppc_branch_hash_entry { | |
2737 | ||
2738 | /* Base hash table entry structure. */ | |
2739 | struct bfd_hash_entry root; | |
2740 | ||
2741 | /* Offset within .branch_lt. */ | |
2742 | unsigned int offset; | |
2743 | ||
2744 | /* Generation marker. */ | |
2745 | unsigned int iter; | |
2746 | }; | |
65f38f15 AM |
2747 | |
2748 | struct ppc_link_hash_entry | |
2749 | { | |
2750 | struct elf_link_hash_entry elf; | |
2751 | ||
721956f4 AM |
2752 | /* A pointer to the most recently used stub hash entry against this |
2753 | symbol. */ | |
2754 | struct ppc_stub_hash_entry *stub_cache; | |
2755 | ||
65f38f15 AM |
2756 | /* Track dynamic relocs copied for this symbol. */ |
2757 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 2758 | |
721956f4 AM |
2759 | /* Link between function code and descriptor symbols. */ |
2760 | struct elf_link_hash_entry *oh; | |
2761 | ||
e86ce104 AM |
2762 | /* Flag function code and descriptor symbols. */ |
2763 | unsigned int is_func:1; | |
2764 | unsigned int is_func_descriptor:1; | |
1e2f5b6e | 2765 | unsigned int is_entry:1; |
411e1bfb | 2766 | |
754021d0 AM |
2767 | /* Whether global opd sym has been adjusted or not. */ |
2768 | unsigned int adjust_done:1; | |
2769 | ||
411e1bfb | 2770 | /* Contexts in which symbol is used in the GOT (or TOC). |
e7b938ca AM |
2771 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
2772 | corresponding relocs are encountered during check_relocs. | |
2773 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2774 | indicate the corresponding GOT entry type is not needed. | |
2775 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
2776 | a TPREL one. We use a separate flag rather than setting TPREL | |
2777 | just for convenience in distinguishing the two cases. */ | |
2778 | #define TLS_GD 1 /* GD reloc. */ | |
2779 | #define TLS_LD 2 /* LD reloc. */ | |
2780 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2781 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2782 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2783 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
2784 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
2785 | char tls_mask; | |
65f38f15 AM |
2786 | }; |
2787 | ||
2788 | /* ppc64 ELF linker hash table. */ | |
2789 | ||
2790 | struct ppc_link_hash_table | |
2791 | { | |
2792 | struct elf_link_hash_table elf; | |
2793 | ||
721956f4 AM |
2794 | /* The stub hash table. */ |
2795 | struct bfd_hash_table stub_hash_table; | |
2796 | ||
2797 | /* Another hash table for plt_branch stubs. */ | |
2798 | struct bfd_hash_table branch_hash_table; | |
2799 | ||
2800 | /* Linker stub bfd. */ | |
2801 | bfd *stub_bfd; | |
2802 | ||
2803 | /* Linker call-backs. */ | |
4ce794b7 AM |
2804 | asection * (*add_stub_section) (const char *, asection *); |
2805 | void (*layout_sections_again) (void); | |
721956f4 AM |
2806 | |
2807 | /* Array to keep track of which stub sections have been created, and | |
2808 | information on stub grouping. */ | |
2809 | struct map_stub { | |
2810 | /* This is the section to which stubs in the group will be attached. */ | |
2811 | asection *link_sec; | |
2812 | /* The stub section. */ | |
2813 | asection *stub_sec; | |
ad8e1ba5 AM |
2814 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
2815 | bfd_vma toc_off; | |
721956f4 AM |
2816 | } *stub_group; |
2817 | ||
ad8e1ba5 AM |
2818 | /* Support for multiple toc sections. */ |
2819 | unsigned int no_multi_toc; | |
2820 | unsigned int multi_toc_needed; | |
2821 | ||
2822 | /* Temp used when calculating TOC pointers. */ | |
2823 | bfd_vma toc_curr; | |
2824 | ||
8f3bab57 AM |
2825 | /* Highest input section id. */ |
2826 | int top_id; | |
2827 | ||
734b6cf9 AM |
2828 | /* Highest output section index. */ |
2829 | int top_index; | |
2830 | ||
2831 | /* List of input sections for each output section. */ | |
2832 | asection **input_list; | |
721956f4 | 2833 | |
65f38f15 | 2834 | /* Short-cuts to get to dynamic linker sections. */ |
4ce794b7 | 2835 | asection *got; |
4ce794b7 AM |
2836 | asection *plt; |
2837 | asection *relplt; | |
2838 | asection *dynbss; | |
2839 | asection *relbss; | |
2840 | asection *glink; | |
82bd7b59 | 2841 | asection *sfpr; |
4ce794b7 AM |
2842 | asection *brlt; |
2843 | asection *relbrlt; | |
ec338859 | 2844 | |
411e1bfb AM |
2845 | /* Shortcut to .__tls_get_addr. */ |
2846 | struct elf_link_hash_entry *tls_get_addr; | |
2847 | ||
9b5ecbd0 AM |
2848 | /* Statistics. */ |
2849 | unsigned long stub_count[ppc_stub_plt_call]; | |
2850 | ||
ad8e1ba5 AM |
2851 | /* Set if we should emit symbols for stubs. */ |
2852 | unsigned int emit_stub_syms; | |
2853 | ||
5d1634d7 | 2854 | /* Set on error. */ |
721956f4 AM |
2855 | unsigned int stub_error; |
2856 | ||
2857 | /* Flag set when small branches are detected. Used to | |
2858 | select suitable defaults for the stub group size. */ | |
2859 | unsigned int has_14bit_branch; | |
2860 | ||
805fc799 AM |
2861 | /* Set if we detect a reference undefined weak symbol. */ |
2862 | unsigned int have_undefweak; | |
2863 | ||
721956f4 AM |
2864 | /* Incremented every time we size stubs. */ |
2865 | unsigned int stub_iteration; | |
5d1634d7 | 2866 | |
ec338859 AM |
2867 | /* Small local sym to section mapping cache. */ |
2868 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
2869 | }; |
2870 | ||
2871 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ | |
2872 | ||
2873 | #define ppc_hash_table(p) \ | |
2874 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
2875 | ||
721956f4 AM |
2876 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
2877 | ((struct ppc_stub_hash_entry *) \ | |
2878 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2879 | ||
2880 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
2881 | ((struct ppc_branch_hash_entry *) \ | |
2882 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2883 | ||
2884 | /* Create an entry in the stub hash table. */ | |
2885 | ||
2886 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2887 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
2888 | struct bfd_hash_table *table, | |
2889 | const char *string) | |
721956f4 AM |
2890 | { |
2891 | /* Allocate the structure if it has not already been allocated by a | |
2892 | subclass. */ | |
2893 | if (entry == NULL) | |
2894 | { | |
2895 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
2896 | if (entry == NULL) | |
2897 | return entry; | |
2898 | } | |
2899 | ||
2900 | /* Call the allocation method of the superclass. */ | |
2901 | entry = bfd_hash_newfunc (entry, table, string); | |
2902 | if (entry != NULL) | |
2903 | { | |
2904 | struct ppc_stub_hash_entry *eh; | |
2905 | ||
2906 | /* Initialize the local fields. */ | |
2907 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 2908 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
2909 | eh->stub_sec = NULL; |
2910 | eh->stub_offset = 0; | |
2911 | eh->target_value = 0; | |
2912 | eh->target_section = NULL; | |
721956f4 AM |
2913 | eh->h = NULL; |
2914 | eh->id_sec = NULL; | |
2915 | } | |
2916 | ||
2917 | return entry; | |
2918 | } | |
2919 | ||
2920 | /* Create an entry in the branch hash table. */ | |
2921 | ||
2922 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2923 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
2924 | struct bfd_hash_table *table, | |
2925 | const char *string) | |
721956f4 AM |
2926 | { |
2927 | /* Allocate the structure if it has not already been allocated by a | |
2928 | subclass. */ | |
2929 | if (entry == NULL) | |
2930 | { | |
2931 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
2932 | if (entry == NULL) | |
2933 | return entry; | |
2934 | } | |
2935 | ||
2936 | /* Call the allocation method of the superclass. */ | |
2937 | entry = bfd_hash_newfunc (entry, table, string); | |
2938 | if (entry != NULL) | |
2939 | { | |
2940 | struct ppc_branch_hash_entry *eh; | |
2941 | ||
2942 | /* Initialize the local fields. */ | |
2943 | eh = (struct ppc_branch_hash_entry *) entry; | |
2944 | eh->offset = 0; | |
2945 | eh->iter = 0; | |
2946 | } | |
2947 | ||
2948 | return entry; | |
2949 | } | |
2950 | ||
65f38f15 AM |
2951 | /* Create an entry in a ppc64 ELF linker hash table. */ |
2952 | ||
2953 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2954 | link_hash_newfunc (struct bfd_hash_entry *entry, |
2955 | struct bfd_hash_table *table, | |
2956 | const char *string) | |
65f38f15 AM |
2957 | { |
2958 | /* Allocate the structure if it has not already been allocated by a | |
2959 | subclass. */ | |
2960 | if (entry == NULL) | |
2961 | { | |
2962 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
2963 | if (entry == NULL) | |
2964 | return entry; | |
2965 | } | |
2966 | ||
2967 | /* Call the allocation method of the superclass. */ | |
2968 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
2969 | if (entry != NULL) | |
2970 | { | |
2971 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
2972 | ||
721956f4 | 2973 | eh->stub_cache = NULL; |
65f38f15 | 2974 | eh->dyn_relocs = NULL; |
721956f4 | 2975 | eh->oh = NULL; |
e86ce104 AM |
2976 | eh->is_func = 0; |
2977 | eh->is_func_descriptor = 0; | |
1e2f5b6e | 2978 | eh->is_entry = 0; |
754021d0 | 2979 | eh->adjust_done = 0; |
e7b938ca | 2980 | eh->tls_mask = 0; |
65f38f15 AM |
2981 | } |
2982 | ||
2983 | return entry; | |
2984 | } | |
2985 | ||
2986 | /* Create a ppc64 ELF linker hash table. */ | |
2987 | ||
2988 | static struct bfd_link_hash_table * | |
4ce794b7 | 2989 | ppc64_elf_link_hash_table_create (bfd *abfd) |
65f38f15 AM |
2990 | { |
2991 | struct ppc_link_hash_table *htab; | |
2992 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
2993 | ||
4ce794b7 | 2994 | htab = bfd_zmalloc (amt); |
65f38f15 AM |
2995 | if (htab == NULL) |
2996 | return NULL; | |
2997 | ||
2998 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
2999 | { | |
e2d34d7d | 3000 | free (htab); |
65f38f15 AM |
3001 | return NULL; |
3002 | } | |
3003 | ||
721956f4 AM |
3004 | /* Init the stub hash table too. */ |
3005 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
3006 | return NULL; | |
3007 | ||
3008 | /* And the branch hash table. */ | |
3009 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
3010 | return NULL; | |
3011 | ||
3254fd24 AM |
3012 | /* Initializing two fields of the union is just cosmetic. We really |
3013 | only care about glist, but when compiled on a 32-bit host the | |
3014 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
3015 | debugger inspection of these fields look nicer. */ | |
3016 | htab->elf.init_refcount.refcount = 0; | |
3017 | htab->elf.init_refcount.glist = NULL; | |
3018 | htab->elf.init_offset.offset = 0; | |
3019 | htab->elf.init_offset.glist = NULL; | |
3020 | ||
65f38f15 AM |
3021 | return &htab->elf.root; |
3022 | } | |
3023 | ||
721956f4 AM |
3024 | /* Free the derived linker hash table. */ |
3025 | ||
3026 | static void | |
4ce794b7 | 3027 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
721956f4 AM |
3028 | { |
3029 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
3030 | ||
3031 | bfd_hash_table_free (&ret->stub_hash_table); | |
3032 | bfd_hash_table_free (&ret->branch_hash_table); | |
3033 | _bfd_generic_link_hash_table_free (hash); | |
3034 | } | |
3035 | ||
e717da7e AM |
3036 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
3037 | ||
3038 | void | |
3039 | ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) | |
3040 | { | |
3041 | struct ppc_link_hash_table *htab; | |
3042 | ||
3043 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64; | |
3044 | ||
3045 | /* Always hook our dynamic sections into the first bfd, which is the | |
3046 | linker created stub bfd. This ensures that the GOT header is at | |
3047 | the start of the output TOC section. */ | |
3048 | htab = ppc_hash_table (info); | |
3049 | htab->stub_bfd = abfd; | |
3050 | htab->elf.dynobj = abfd; | |
3051 | } | |
3052 | ||
721956f4 AM |
3053 | /* Build a name for an entry in the stub hash table. */ |
3054 | ||
3055 | static char * | |
4ce794b7 AM |
3056 | ppc_stub_name (const asection *input_section, |
3057 | const asection *sym_sec, | |
3058 | const struct ppc_link_hash_entry *h, | |
3059 | const Elf_Internal_Rela *rel) | |
721956f4 AM |
3060 | { |
3061 | char *stub_name; | |
3062 | bfd_size_type len; | |
3063 | ||
3064 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3065 | offsets from a sym as a branch target? In fact, we could | |
3066 | probably assume the addend is always zero. */ | |
3067 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3068 | ||
3069 | if (h) | |
3070 | { | |
3071 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3072 | stub_name = bfd_malloc (len); | |
3073 | if (stub_name != NULL) | |
3074 | { | |
97b639ba | 3075 | sprintf (stub_name, "%08x.%s+%x", |
721956f4 AM |
3076 | input_section->id & 0xffffffff, |
3077 | h->elf.root.root.string, | |
3078 | (int) rel->r_addend & 0xffffffff); | |
3079 | } | |
3080 | } | |
3081 | else | |
3082 | { | |
ad8e1ba5 | 3083 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 AM |
3084 | stub_name = bfd_malloc (len); |
3085 | if (stub_name != NULL) | |
3086 | { | |
97b639ba | 3087 | sprintf (stub_name, "%08x.%x:%x+%x", |
721956f4 AM |
3088 | input_section->id & 0xffffffff, |
3089 | sym_sec->id & 0xffffffff, | |
3090 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3091 | (int) rel->r_addend & 0xffffffff); | |
3092 | } | |
3093 | } | |
3094 | return stub_name; | |
3095 | } | |
3096 | ||
3097 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3098 | creating the stub name takes a bit of time. */ | |
3099 | ||
3100 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3101 | ppc_get_stub_entry (const asection *input_section, |
3102 | const asection *sym_sec, | |
3103 | struct elf_link_hash_entry *hash, | |
3104 | const Elf_Internal_Rela *rel, | |
3105 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3106 | { |
3107 | struct ppc_stub_hash_entry *stub_entry; | |
3108 | struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash; | |
3109 | const asection *id_sec; | |
3110 | ||
3111 | /* If this input section is part of a group of sections sharing one | |
3112 | stub section, then use the id of the first section in the group. | |
3113 | Stub names need to include a section id, as there may well be | |
3114 | more than one stub used to reach say, printf, and we need to | |
3115 | distinguish between them. */ | |
3116 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3117 | ||
3118 | if (h != NULL && h->stub_cache != NULL | |
3119 | && h->stub_cache->h == h | |
3120 | && h->stub_cache->id_sec == id_sec) | |
3121 | { | |
3122 | stub_entry = h->stub_cache; | |
3123 | } | |
3124 | else | |
3125 | { | |
3126 | char *stub_name; | |
3127 | ||
3128 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3129 | if (stub_name == NULL) | |
3130 | return NULL; | |
3131 | ||
3132 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3133 | stub_name, FALSE, FALSE); |
721956f4 AM |
3134 | if (h != NULL) |
3135 | h->stub_cache = stub_entry; | |
3136 | ||
3137 | free (stub_name); | |
3138 | } | |
3139 | ||
3140 | return stub_entry; | |
3141 | } | |
3142 | ||
3143 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3144 | stub entry are initialised. */ | |
3145 | ||
3146 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3147 | ppc_add_stub (const char *stub_name, |
3148 | asection *section, | |
3149 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3150 | { |
3151 | asection *link_sec; | |
3152 | asection *stub_sec; | |
3153 | struct ppc_stub_hash_entry *stub_entry; | |
3154 | ||
3155 | link_sec = htab->stub_group[section->id].link_sec; | |
3156 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3157 | if (stub_sec == NULL) | |
3158 | { | |
3159 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3160 | if (stub_sec == NULL) | |
3161 | { | |
d4c88bbb | 3162 | size_t namelen; |
721956f4 AM |
3163 | bfd_size_type len; |
3164 | char *s_name; | |
3165 | ||
d4c88bbb AM |
3166 | namelen = strlen (link_sec->name); |
3167 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3168 | s_name = bfd_alloc (htab->stub_bfd, len); |
3169 | if (s_name == NULL) | |
3170 | return NULL; | |
3171 | ||
d4c88bbb AM |
3172 | memcpy (s_name, link_sec->name, namelen); |
3173 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3174 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3175 | if (stub_sec == NULL) | |
3176 | return NULL; | |
3177 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3178 | } | |
3179 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3180 | } | |
3181 | ||
3182 | /* Enter this entry into the linker stub hash table. */ | |
3183 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3184 | TRUE, FALSE); |
721956f4 AM |
3185 | if (stub_entry == NULL) |
3186 | { | |
3187 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
3188 | bfd_archive_filename (section->owner), | |
3189 | stub_name); | |
3190 | return NULL; | |
3191 | } | |
3192 | ||
3193 | stub_entry->stub_sec = stub_sec; | |
3194 | stub_entry->stub_offset = 0; | |
3195 | stub_entry->id_sec = link_sec; | |
3196 | return stub_entry; | |
3197 | } | |
3198 | ||
82bd7b59 AM |
3199 | /* Create sections for linker generated code. */ |
3200 | ||
b34976b6 | 3201 | static bfd_boolean |
4ce794b7 | 3202 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) |
82bd7b59 AM |
3203 | { |
3204 | struct ppc_link_hash_table *htab; | |
3205 | flagword flags; | |
3206 | ||
3207 | htab = ppc_hash_table (info); | |
3208 | ||
3209 | /* Create .sfpr for code to save and restore fp regs. */ | |
3210 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3211 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3212 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3213 | if (htab->sfpr == NULL |
3214 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3215 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3216 | return FALSE; |
82bd7b59 | 3217 | |
721956f4 | 3218 | /* Create .glink for lazy dynamic linking support. */ |
4ce794b7 AM |
3219 | htab->glink = bfd_make_section_anyway (dynobj, ".glink"); |
3220 | if (htab->glink == NULL | |
3221 | || ! bfd_set_section_flags (dynobj, htab->glink, flags) | |
3222 | || ! bfd_set_section_alignment (dynobj, htab->glink, 2)) | |
b34976b6 | 3223 | return FALSE; |
82bd7b59 | 3224 | |
721956f4 AM |
3225 | /* Create .branch_lt for plt_branch stubs. */ |
3226 | flags = (SEC_ALLOC | SEC_LOAD | |
3227 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3228 | htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt"); |
3229 | if (htab->brlt == NULL | |
3230 | || ! bfd_set_section_flags (dynobj, htab->brlt, flags) | |
3231 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
b34976b6 | 3232 | return FALSE; |
721956f4 AM |
3233 | |
3234 | if (info->shared) | |
3235 | { | |
3236 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3237 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3238 | htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
3239 | if (!htab->relbrlt | |
3240 | || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags) | |
3241 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
b34976b6 | 3242 | return FALSE; |
721956f4 | 3243 | } |
b34976b6 | 3244 | return TRUE; |
82bd7b59 AM |
3245 | } |
3246 | ||
e717da7e AM |
3247 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
3248 | not already done. */ | |
65f38f15 | 3249 | |
b34976b6 | 3250 | static bfd_boolean |
e717da7e | 3251 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
65f38f15 | 3252 | { |
e717da7e AM |
3253 | asection *got, *relgot; |
3254 | flagword flags; | |
3255 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
65f38f15 | 3256 | |
4ce794b7 | 3257 | if (!htab->got) |
e717da7e AM |
3258 | { |
3259 | if (! _bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
3260 | return FALSE; | |
3261 | ||
3262 | htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got"); | |
3263 | if (!htab->got) | |
3264 | abort (); | |
3265 | } | |
3266 | ||
3267 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3268 | | SEC_LINKER_CREATED); | |
3269 | ||
3270 | got = bfd_make_section (abfd, ".got"); | |
3271 | if (!got | |
3272 | || !bfd_set_section_flags (abfd, got, flags) | |
3273 | || !bfd_set_section_alignment (abfd, got, 3)) | |
3274 | return FALSE; | |
65f38f15 | 3275 | |
e717da7e AM |
3276 | relgot = bfd_make_section (abfd, ".rela.got"); |
3277 | if (!relgot | |
3278 | || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY) | |
3279 | || ! bfd_set_section_alignment (abfd, relgot, 3)) | |
b34976b6 | 3280 | return FALSE; |
e717da7e AM |
3281 | |
3282 | ppc64_elf_tdata (abfd)->got = got; | |
3283 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
b34976b6 | 3284 | return TRUE; |
65f38f15 | 3285 | } |
5bd4f169 | 3286 | |
82bd7b59 | 3287 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3288 | |
b34976b6 | 3289 | static bfd_boolean |
4ce794b7 | 3290 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5bd4f169 | 3291 | { |
65f38f15 | 3292 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3293 | |
65f38f15 | 3294 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3295 | return FALSE; |
65f38f15 | 3296 | |
e717da7e AM |
3297 | htab = ppc_hash_table (info); |
3298 | if (!htab->got) | |
3299 | htab->got = bfd_get_section_by_name (dynobj, ".got"); | |
4ce794b7 AM |
3300 | htab->plt = bfd_get_section_by_name (dynobj, ".plt"); |
3301 | htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3302 | htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
65f38f15 | 3303 | if (!info->shared) |
4ce794b7 | 3304 | htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
65f38f15 | 3305 | |
e717da7e | 3306 | if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss |
4ce794b7 | 3307 | || (!info->shared && !htab->relbss)) |
65f38f15 AM |
3308 | abort (); |
3309 | ||
b34976b6 | 3310 | return TRUE; |
5bd4f169 AM |
3311 | } |
3312 | ||
65f38f15 AM |
3313 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3314 | ||
3315 | static void | |
9c5bfbb7 AM |
3316 | ppc64_elf_copy_indirect_symbol |
3317 | (const struct elf_backend_data *bed ATTRIBUTE_UNUSED, | |
3318 | struct elf_link_hash_entry *dir, | |
3319 | struct elf_link_hash_entry *ind) | |
65f38f15 AM |
3320 | { |
3321 | struct ppc_link_hash_entry *edir, *eind; | |
81848ca0 | 3322 | flagword mask; |
65f38f15 AM |
3323 | |
3324 | edir = (struct ppc_link_hash_entry *) dir; | |
3325 | eind = (struct ppc_link_hash_entry *) ind; | |
3326 | ||
411e1bfb | 3327 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3328 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3329 | { |
bbd7ec4a AM |
3330 | if (edir->dyn_relocs != NULL) |
3331 | { | |
3332 | struct ppc_dyn_relocs **pp; | |
3333 | struct ppc_dyn_relocs *p; | |
3334 | ||
411e1bfb | 3335 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3336 | abort (); |
3337 | ||
3338 | /* Add reloc counts against the weak sym to the strong sym | |
3339 | list. Merge any entries against the same section. */ | |
3340 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3341 | { | |
3342 | struct ppc_dyn_relocs *q; | |
3343 | ||
3344 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3345 | if (q->sec == p->sec) | |
3346 | { | |
3347 | q->pc_count += p->pc_count; | |
3348 | q->count += p->count; | |
3349 | *pp = p->next; | |
3350 | break; | |
3351 | } | |
3352 | if (q == NULL) | |
3353 | pp = &p->next; | |
3354 | } | |
3355 | *pp = edir->dyn_relocs; | |
3356 | } | |
3357 | ||
65f38f15 AM |
3358 | edir->dyn_relocs = eind->dyn_relocs; |
3359 | eind->dyn_relocs = NULL; | |
3360 | } | |
65f38f15 | 3361 | |
6349e628 AM |
3362 | edir->is_func |= eind->is_func; |
3363 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
3364 | edir->is_entry |= eind->is_entry; | |
58ac9f71 | 3365 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3366 | |
81848ca0 | 3367 | mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR |
3addb0a9 DJ |
3368 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF |
3369 | | ELF_LINK_HASH_NEEDS_PLT); | |
81848ca0 AM |
3370 | /* If called to transfer flags for a weakdef during processing |
3371 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
3372 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3373 | if (ELIMINATE_COPY_RELOCS | |
3374 | && eind->elf.root.type != bfd_link_hash_indirect | |
3375 | && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
3376 | mask &= ~ELF_LINK_NON_GOT_REF; | |
3377 | ||
3378 | edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask; | |
6349e628 AM |
3379 | |
3380 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3381 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3382 | return; | |
3383 | ||
81848ca0 AM |
3384 | /* Copy over got entries that we may have already seen to the |
3385 | symbol which just became indirect. */ | |
411e1bfb AM |
3386 | if (eind->elf.got.glist != NULL) |
3387 | { | |
3388 | if (edir->elf.got.glist != NULL) | |
3389 | { | |
3390 | struct got_entry **entp; | |
3391 | struct got_entry *ent; | |
3392 | ||
3393 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3394 | { | |
3395 | struct got_entry *dent; | |
3396 | ||
3397 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3398 | if (dent->addend == ent->addend | |
e717da7e | 3399 | && dent->owner == ent->owner |
411e1bfb AM |
3400 | && dent->tls_type == ent->tls_type) |
3401 | { | |
3402 | dent->got.refcount += ent->got.refcount; | |
3403 | *entp = ent->next; | |
3404 | break; | |
3405 | } | |
3406 | if (dent == NULL) | |
3407 | entp = &ent->next; | |
3408 | } | |
3409 | *entp = edir->elf.got.glist; | |
3410 | } | |
3411 | ||
3412 | edir->elf.got.glist = eind->elf.got.glist; | |
3413 | eind->elf.got.glist = NULL; | |
3414 | } | |
3415 | ||
3416 | /* And plt entries. */ | |
3417 | if (eind->elf.plt.plist != NULL) | |
3418 | { | |
3419 | if (edir->elf.plt.plist != NULL) | |
3420 | { | |
3421 | struct plt_entry **entp; | |
3422 | struct plt_entry *ent; | |
3423 | ||
3424 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3425 | { | |
3426 | struct plt_entry *dent; | |
3427 | ||
3428 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3429 | if (dent->addend == ent->addend) | |
3430 | { | |
3431 | dent->plt.refcount += ent->plt.refcount; | |
3432 | *entp = ent->next; | |
3433 | break; | |
3434 | } | |
3435 | if (dent == NULL) | |
3436 | entp = &ent->next; | |
3437 | } | |
3438 | *entp = edir->elf.plt.plist; | |
3439 | } | |
3440 | ||
3441 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3442 | eind->elf.plt.plist = NULL; | |
3443 | } | |
3444 | ||
411e1bfb AM |
3445 | if (edir->elf.dynindx == -1) |
3446 | { | |
3447 | edir->elf.dynindx = eind->elf.dynindx; | |
3448 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3449 | eind->elf.dynindx = -1; | |
3450 | eind->elf.dynstr_index = 0; | |
3451 | } | |
3452 | else | |
3453 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3454 | } | |
3455 | ||
3456 | /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and | |
3457 | symbols undefined on the command-line. */ | |
3458 | ||
3459 | bfd_boolean | |
4ce794b7 | 3460 | ppc64_elf_mark_entry_syms (struct bfd_link_info *info) |
411e1bfb AM |
3461 | { |
3462 | struct ppc_link_hash_table *htab; | |
3463 | struct bfd_sym_chain *sym; | |
3464 | ||
3465 | htab = ppc_hash_table (info); | |
3466 | for (sym = info->gc_sym_list; sym; sym = sym->next) | |
3467 | { | |
3468 | struct elf_link_hash_entry *h; | |
3469 | ||
3470 | h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
3471 | if (h != NULL) | |
3472 | ((struct ppc_link_hash_entry *) h)->is_entry = 1; | |
3473 | } | |
3474 | return TRUE; | |
3475 | } | |
3476 | ||
3477 | static bfd_boolean | |
4ce794b7 AM |
3478 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
3479 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
411e1bfb AM |
3480 | { |
3481 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 3482 | char *local_got_tls_masks; |
411e1bfb AM |
3483 | |
3484 | if (local_got_ents == NULL) | |
3485 | { | |
3486 | bfd_size_type size = symtab_hdr->sh_info; | |
3487 | ||
e7b938ca | 3488 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
4ce794b7 | 3489 | local_got_ents = bfd_zalloc (abfd, size); |
411e1bfb AM |
3490 | if (local_got_ents == NULL) |
3491 | return FALSE; | |
3492 | elf_local_got_ents (abfd) = local_got_ents; | |
3493 | } | |
3494 | ||
3495 | if ((tls_type & TLS_EXPLICIT) == 0) | |
3496 | { | |
3497 | struct got_entry *ent; | |
3498 | ||
3499 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
e717da7e AM |
3500 | if (ent->addend == r_addend |
3501 | && ent->owner == abfd | |
3502 | && ent->tls_type == tls_type) | |
411e1bfb AM |
3503 | break; |
3504 | if (ent == NULL) | |
3505 | { | |
3506 | bfd_size_type amt = sizeof (*ent); | |
4ce794b7 | 3507 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3508 | if (ent == NULL) |
3509 | return FALSE; | |
3510 | ent->next = local_got_ents[r_symndx]; | |
3511 | ent->addend = r_addend; | |
e717da7e | 3512 | ent->owner = abfd; |
411e1bfb AM |
3513 | ent->tls_type = tls_type; |
3514 | ent->got.refcount = 0; | |
3515 | local_got_ents[r_symndx] = ent; | |
3516 | } | |
3517 | ent->got.refcount += 1; | |
3518 | } | |
3519 | ||
e7b938ca AM |
3520 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
3521 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 3522 | return TRUE; |
65f38f15 AM |
3523 | } |
3524 | ||
411e1bfb | 3525 | static bfd_boolean |
4ce794b7 | 3526 | update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend) |
1e2f5b6e | 3527 | { |
411e1bfb | 3528 | struct plt_entry *ent; |
1e2f5b6e | 3529 | |
411e1bfb AM |
3530 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
3531 | if (ent->addend == addend) | |
3532 | break; | |
3533 | if (ent == NULL) | |
1e2f5b6e | 3534 | { |
411e1bfb | 3535 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3536 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3537 | if (ent == NULL) |
3538 | return FALSE; | |
3539 | ent->next = eh->elf.plt.plist; | |
3540 | ent->addend = addend; | |
3541 | ent->plt.refcount = 0; | |
3542 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 3543 | } |
411e1bfb AM |
3544 | ent->plt.refcount += 1; |
3545 | eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
3546 | eh->is_func = 1; | |
b34976b6 | 3547 | return TRUE; |
1e2f5b6e AM |
3548 | } |
3549 | ||
50bc7936 AM |
3550 | /* Find the function descriptor hash entry from the given function code |
3551 | hash entry FH. Link the entries via their OH fields. */ | |
3552 | static struct ppc_link_hash_entry * | |
3553 | get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) | |
3554 | { | |
3555 | struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh; | |
3556 | ||
3557 | if (fdh == NULL) | |
3558 | { | |
3559 | const char *fd_name = fh->elf.root.root.string + 1; | |
3560 | ||
3561 | fdh = (struct ppc_link_hash_entry *) | |
3562 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
3563 | if (fdh != NULL) | |
3564 | { | |
3565 | fdh->is_func_descriptor = 1; | |
3566 | fdh->oh = &fh->elf; | |
3567 | fh->is_func = 1; | |
3568 | fh->oh = &fdh->elf; | |
3569 | } | |
3570 | } | |
3571 | ||
3572 | return fdh; | |
3573 | } | |
3574 | ||
5bd4f169 | 3575 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 3576 | calculate needed space in the global offset table, procedure |
5d1634d7 | 3577 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 3578 | |
b34976b6 | 3579 | static bfd_boolean |
4ce794b7 AM |
3580 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
3581 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 3582 | { |
65f38f15 | 3583 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
3584 | Elf_Internal_Shdr *symtab_hdr; |
3585 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3586 | const Elf_Internal_Rela *rel; | |
3587 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 3588 | asection *sreloc; |
1e2f5b6e | 3589 | asection **opd_sym_map; |
5bd4f169 | 3590 | |
1049f94e | 3591 | if (info->relocatable) |
b34976b6 | 3592 | return TRUE; |
5bd4f169 | 3593 | |
680a3378 AM |
3594 | /* Don't do anything special with non-loaded, non-alloced sections. |
3595 | In particular, any relocs in such sections should not affect GOT | |
3596 | and PLT reference counting (ie. we don't allow them to create GOT | |
3597 | or PLT entries), there's no possibility or desire to optimize TLS | |
3598 | relocs, and there's not much point in propagating relocs to shared | |
3599 | libs that the dynamic linker won't relocate. */ | |
3600 | if ((sec->flags & SEC_ALLOC) == 0) | |
3601 | return TRUE; | |
3602 | ||
65f38f15 | 3603 | htab = ppc_hash_table (info); |
5bd4f169 | 3604 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
3605 | |
3606 | sym_hashes = elf_sym_hashes (abfd); | |
3607 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
3608 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
3609 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
3610 | |
3611 | sreloc = NULL; | |
1e2f5b6e AM |
3612 | opd_sym_map = NULL; |
3613 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
3614 | { | |
3615 | /* Garbage collection needs some extra help with .opd sections. | |
3616 | We don't want to necessarily keep everything referenced by | |
3617 | relocs in .opd, as that would keep all functions. Instead, | |
3618 | if we reference an .opd symbol (a function descriptor), we | |
3619 | want to keep the function code symbol's section. This is | |
3620 | easy for global symbols, but for local syms we need to keep | |
3621 | information about the associated function section. Later, if | |
3622 | edit_opd deletes entries, we'll use this array to adjust | |
3623 | local syms in .opd. */ | |
3624 | union opd_info { | |
3625 | asection *func_section; | |
3626 | long entry_adjust; | |
3627 | }; | |
3628 | bfd_size_type amt; | |
3629 | ||
3630 | amt = sec->_raw_size * sizeof (union opd_info) / 24; | |
4ce794b7 | 3631 | opd_sym_map = bfd_zalloc (abfd, amt); |
1e2f5b6e | 3632 | if (opd_sym_map == NULL) |
b34976b6 | 3633 | return FALSE; |
f0abc2a1 | 3634 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 3635 | } |
5bd4f169 | 3636 | |
82bd7b59 AM |
3637 | if (htab->sfpr == NULL |
3638 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 3639 | return FALSE; |
82bd7b59 | 3640 | |
5bd4f169 AM |
3641 | rel_end = relocs + sec->reloc_count; |
3642 | for (rel = relocs; rel < rel_end; rel++) | |
3643 | { | |
3644 | unsigned long r_symndx; | |
3645 | struct elf_link_hash_entry *h; | |
04c9666a | 3646 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 3647 | int tls_type = 0; |
5bd4f169 AM |
3648 | |
3649 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3650 | if (r_symndx < symtab_hdr->sh_info) | |
3651 | h = NULL; | |
3652 | else | |
3653 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3654 | ||
4ce794b7 | 3655 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3656 | switch (r_type) |
5bd4f169 | 3657 | { |
411e1bfb AM |
3658 | case R_PPC64_GOT_TLSLD16: |
3659 | case R_PPC64_GOT_TLSLD16_LO: | |
3660 | case R_PPC64_GOT_TLSLD16_HI: | |
3661 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 3662 | ppc64_tlsld_got (abfd)->refcount += 1; |
951fd09b | 3663 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
3664 | goto dogottls; |
3665 | ||
3666 | case R_PPC64_GOT_TLSGD16: | |
3667 | case R_PPC64_GOT_TLSGD16_LO: | |
3668 | case R_PPC64_GOT_TLSGD16_HI: | |
3669 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 3670 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
3671 | goto dogottls; |
3672 | ||
3673 | case R_PPC64_GOT_TPREL16_DS: | |
3674 | case R_PPC64_GOT_TPREL16_LO_DS: | |
3675 | case R_PPC64_GOT_TPREL16_HI: | |
3676 | case R_PPC64_GOT_TPREL16_HA: | |
3677 | if (info->shared) | |
3678 | info->flags |= DF_STATIC_TLS; | |
3679 | tls_type = TLS_TLS | TLS_TPREL; | |
3680 | goto dogottls; | |
3681 | ||
3682 | case R_PPC64_GOT_DTPREL16_DS: | |
3683 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
3684 | case R_PPC64_GOT_DTPREL16_HI: | |
3685 | case R_PPC64_GOT_DTPREL16_HA: | |
3686 | tls_type = TLS_TLS | TLS_DTPREL; | |
3687 | dogottls: | |
3688 | sec->has_tls_reloc = 1; | |
3689 | /* Fall thru */ | |
3690 | ||
5bd4f169 | 3691 | case R_PPC64_GOT16: |
5bd4f169 | 3692 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
3693 | case R_PPC64_GOT16_HA: |
3694 | case R_PPC64_GOT16_HI: | |
3695 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 3696 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 3697 | /* This symbol requires a global offset table entry. */ |
ad8e1ba5 | 3698 | sec->has_gp_reloc = 1; |
e717da7e AM |
3699 | if (ppc64_elf_tdata (abfd)->got == NULL |
3700 | && !create_got_section (abfd, info)) | |
b34976b6 | 3701 | return FALSE; |
5bd4f169 AM |
3702 | |
3703 | if (h != NULL) | |
3704 | { | |
411e1bfb AM |
3705 | struct ppc_link_hash_entry *eh; |
3706 | struct got_entry *ent; | |
65f38f15 | 3707 | |
411e1bfb AM |
3708 | eh = (struct ppc_link_hash_entry *) h; |
3709 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
3710 | if (ent->addend == rel->r_addend | |
e717da7e | 3711 | && ent->owner == abfd |
411e1bfb AM |
3712 | && ent->tls_type == tls_type) |
3713 | break; | |
3714 | if (ent == NULL) | |
5bd4f169 | 3715 | { |
411e1bfb | 3716 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3717 | ent = bfd_alloc (abfd, amt); |
411e1bfb | 3718 | if (ent == NULL) |
b34976b6 | 3719 | return FALSE; |
411e1bfb AM |
3720 | ent->next = eh->elf.got.glist; |
3721 | ent->addend = rel->r_addend; | |
e717da7e | 3722 | ent->owner = abfd; |
411e1bfb AM |
3723 | ent->tls_type = tls_type; |
3724 | ent->got.refcount = 0; | |
3725 | eh->elf.got.glist = ent; | |
5bd4f169 | 3726 | } |
411e1bfb | 3727 | ent->got.refcount += 1; |
e7b938ca | 3728 | eh->tls_mask |= tls_type; |
5bd4f169 | 3729 | } |
411e1bfb AM |
3730 | else |
3731 | /* This is a global offset table entry for a local symbol. */ | |
3732 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3733 | rel->r_addend, tls_type)) | |
3734 | return FALSE; | |
5bd4f169 AM |
3735 | break; |
3736 | ||
5bd4f169 | 3737 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
3738 | case R_PPC64_PLT16_HI: |
3739 | case R_PPC64_PLT16_LO: | |
3740 | case R_PPC64_PLT32: | |
3741 | case R_PPC64_PLT64: | |
5bd4f169 | 3742 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
3743 | actually build the entry in adjust_dynamic_symbol, |
3744 | because this might be a case of linking PIC code without | |
3745 | linking in any dynamic objects, in which case we don't | |
3746 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
3747 | if (h == NULL) |
3748 | { | |
3749 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 3750 | table entry for a local symbol. */ |
5bd4f169 | 3751 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3752 | return FALSE; |
5bd4f169 | 3753 | } |
411e1bfb AM |
3754 | else |
3755 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
3756 | rel->r_addend)) | |
3757 | return FALSE; | |
5bd4f169 AM |
3758 | break; |
3759 | ||
3760 | /* The following relocations don't need to propagate the | |
3761 | relocation if linking a shared object since they are | |
3762 | section relative. */ | |
3763 | case R_PPC64_SECTOFF: | |
3764 | case R_PPC64_SECTOFF_LO: | |
3765 | case R_PPC64_SECTOFF_HI: | |
3766 | case R_PPC64_SECTOFF_HA: | |
3767 | case R_PPC64_SECTOFF_DS: | |
3768 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
3769 | case R_PPC64_DTPREL16: |
3770 | case R_PPC64_DTPREL16_LO: | |
3771 | case R_PPC64_DTPREL16_HI: | |
3772 | case R_PPC64_DTPREL16_HA: | |
3773 | case R_PPC64_DTPREL16_DS: | |
3774 | case R_PPC64_DTPREL16_LO_DS: | |
3775 | case R_PPC64_DTPREL16_HIGHER: | |
3776 | case R_PPC64_DTPREL16_HIGHERA: | |
3777 | case R_PPC64_DTPREL16_HIGHEST: | |
3778 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
3779 | break; |
3780 | ||
ad8e1ba5 AM |
3781 | /* Nor do these. */ |
3782 | case R_PPC64_TOC16: | |
3783 | case R_PPC64_TOC16_LO: | |
3784 | case R_PPC64_TOC16_HI: | |
3785 | case R_PPC64_TOC16_HA: | |
3786 | case R_PPC64_TOC16_DS: | |
3787 | case R_PPC64_TOC16_LO_DS: | |
3788 | sec->has_gp_reloc = 1; | |
3789 | break; | |
3790 | ||
5bd4f169 AM |
3791 | /* This relocation describes the C++ object vtable hierarchy. |
3792 | Reconstruct it for later use during GC. */ | |
3793 | case R_PPC64_GNU_VTINHERIT: | |
3794 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3795 | return FALSE; |
5bd4f169 AM |
3796 | break; |
3797 | ||
3798 | /* This relocation describes which C++ vtable entries are actually | |
3799 | used. Record for later use during GC. */ | |
3800 | case R_PPC64_GNU_VTENTRY: | |
3801 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3802 | return FALSE; |
5bd4f169 AM |
3803 | break; |
3804 | ||
721956f4 AM |
3805 | case R_PPC64_REL14: |
3806 | case R_PPC64_REL14_BRTAKEN: | |
3807 | case R_PPC64_REL14_BRNTAKEN: | |
3808 | htab->has_14bit_branch = 1; | |
3809 | /* Fall through. */ | |
3810 | ||
5d1634d7 | 3811 | case R_PPC64_REL24: |
e86ce104 AM |
3812 | if (h != NULL |
3813 | && h->root.root.string[0] == '.' | |
3814 | && h->root.root.string[1] != 0) | |
5d1634d7 AM |
3815 | { |
3816 | /* We may need a .plt entry if the function this reloc | |
3817 | refers to is in a shared lib. */ | |
411e1bfb AM |
3818 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
3819 | rel->r_addend)) | |
3820 | return FALSE; | |
3821 | if (h == htab->tls_get_addr) | |
3822 | sec->has_tls_reloc = 1; | |
a48ebf4d AM |
3823 | else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15) |
3824 | == 0) | |
3825 | && (h->root.root.string[15] == 0 | |
3826 | || h->root.root.string[15] == '@')) | |
411e1bfb AM |
3827 | { |
3828 | htab->tls_get_addr = h; | |
3829 | sec->has_tls_reloc = 1; | |
3830 | } | |
3831 | } | |
3832 | break; | |
3833 | ||
3834 | case R_PPC64_TPREL64: | |
3835 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
3836 | if (info->shared) | |
3837 | info->flags |= DF_STATIC_TLS; | |
3838 | goto dotlstoc; | |
3839 | ||
3840 | case R_PPC64_DTPMOD64: | |
3841 | if (rel + 1 < rel_end | |
3842 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
3843 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 3844 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 3845 | else |
951fd09b | 3846 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
3847 | goto dotlstoc; |
3848 | ||
3849 | case R_PPC64_DTPREL64: | |
3850 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
3851 | if (rel != relocs | |
3852 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
3853 | && rel[-1].r_offset == rel->r_offset - 8) | |
3854 | /* This is the second reloc of a dtpmod, dtprel pair. | |
3855 | Don't mark with TLS_DTPREL. */ | |
3856 | goto dodyn; | |
3857 | ||
3858 | dotlstoc: | |
3859 | sec->has_tls_reloc = 1; | |
3860 | if (h != NULL) | |
3861 | { | |
3862 | struct ppc_link_hash_entry *eh; | |
3863 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 3864 | eh->tls_mask |= tls_type; |
411e1bfb AM |
3865 | } |
3866 | else | |
3867 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3868 | rel->r_addend, tls_type)) | |
3869 | return FALSE; | |
3870 | ||
3871 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3872 | { | |
e7b938ca | 3873 | /* One extra to simplify get_tls_mask. */ |
951fd09b | 3874 | bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1; |
4ce794b7 | 3875 | ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt); |
411e1bfb AM |
3876 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) |
3877 | return FALSE; | |
3878 | } | |
3879 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
3880 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
3881 | |
3882 | /* Mark the second slot of a GD or LD entry. | |
3883 | -1 to indicate GD and -2 to indicate LD. */ | |
3884 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
3885 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
3886 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
3887 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
3888 | goto dodyn; |
3889 | ||
3890 | case R_PPC64_TPREL16: | |
3891 | case R_PPC64_TPREL16_LO: | |
3892 | case R_PPC64_TPREL16_HI: | |
3893 | case R_PPC64_TPREL16_HA: | |
3894 | case R_PPC64_TPREL16_DS: | |
3895 | case R_PPC64_TPREL16_LO_DS: | |
3896 | case R_PPC64_TPREL16_HIGHER: | |
3897 | case R_PPC64_TPREL16_HIGHERA: | |
3898 | case R_PPC64_TPREL16_HIGHEST: | |
3899 | case R_PPC64_TPREL16_HIGHESTA: | |
3900 | if (info->shared) | |
3901 | { | |
3902 | info->flags |= DF_STATIC_TLS; | |
3903 | goto dodyn; | |
5d1634d7 AM |
3904 | } |
3905 | break; | |
3906 | ||
e86ce104 | 3907 | case R_PPC64_ADDR64: |
1e2f5b6e | 3908 | if (opd_sym_map != NULL |
e86ce104 AM |
3909 | && h != NULL |
3910 | && h->root.root.string[0] == '.' | |
3911 | && h->root.root.string[1] != 0) | |
50bc7936 | 3912 | get_fdh ((struct ppc_link_hash_entry *) h, htab); |
e86ce104 | 3913 | |
1e2f5b6e AM |
3914 | if (opd_sym_map != NULL |
3915 | && h == NULL | |
3916 | && rel + 1 < rel_end | |
4ce794b7 | 3917 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
1e2f5b6e AM |
3918 | { |
3919 | asection *s; | |
3920 | ||
3921 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3922 | r_symndx); | |
3923 | if (s == NULL) | |
b34976b6 | 3924 | return FALSE; |
1e2f5b6e AM |
3925 | else if (s != sec) |
3926 | opd_sym_map[rel->r_offset / 24] = s; | |
3927 | } | |
e86ce104 AM |
3928 | /* Fall through. */ |
3929 | ||
04c9666a | 3930 | case R_PPC64_REL30: |
5bd4f169 | 3931 | case R_PPC64_REL32: |
04c9666a | 3932 | case R_PPC64_REL64: |
65f38f15 AM |
3933 | case R_PPC64_ADDR14: |
3934 | case R_PPC64_ADDR14_BRNTAKEN: | |
3935 | case R_PPC64_ADDR14_BRTAKEN: | |
3936 | case R_PPC64_ADDR16: | |
3937 | case R_PPC64_ADDR16_DS: | |
3938 | case R_PPC64_ADDR16_HA: | |
3939 | case R_PPC64_ADDR16_HI: | |
3940 | case R_PPC64_ADDR16_HIGHER: | |
3941 | case R_PPC64_ADDR16_HIGHERA: | |
3942 | case R_PPC64_ADDR16_HIGHEST: | |
3943 | case R_PPC64_ADDR16_HIGHESTA: | |
3944 | case R_PPC64_ADDR16_LO: | |
3945 | case R_PPC64_ADDR16_LO_DS: | |
3946 | case R_PPC64_ADDR24: | |
65f38f15 | 3947 | case R_PPC64_ADDR32: |
65f38f15 AM |
3948 | case R_PPC64_UADDR16: |
3949 | case R_PPC64_UADDR32: | |
3950 | case R_PPC64_UADDR64: | |
5bd4f169 | 3951 | case R_PPC64_TOC: |
81848ca0 AM |
3952 | if (h != NULL && !info->shared) |
3953 | /* We may need a copy reloc. */ | |
3954 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3955 | ||
41bd81ab | 3956 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 3957 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 3958 | break; |
e86ce104 | 3959 | |
65f38f15 AM |
3960 | /* If we are creating a shared library, and this is a reloc |
3961 | against a global symbol, or a non PC relative reloc | |
3962 | against a local symbol, then we need to copy the reloc | |
3963 | into the shared library. However, if we are linking with | |
3964 | -Bsymbolic, we do not need to copy a reloc against a | |
3965 | global symbol which is defined in an object we are | |
3966 | including in the link (i.e., DEF_REGULAR is set). At | |
3967 | this point we have not seen all the input files, so it is | |
3968 | possible that DEF_REGULAR is not set now but will be set | |
3969 | later (it is never cleared). In case of a weak definition, | |
3970 | DEF_REGULAR may be cleared later by a strong definition in | |
3971 | a shared library. We account for that possibility below by | |
f4656909 | 3972 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
3973 | table entry. A similar situation occurs when creating |
3974 | shared libraries and symbol visibility changes render the | |
3975 | symbol local. | |
3976 | ||
3977 | If on the other hand, we are creating an executable, we | |
3978 | may need to keep relocations for symbols satisfied by a | |
3979 | dynamic library if we manage to avoid copy relocs for the | |
3980 | symbol. */ | |
411e1bfb | 3981 | dodyn: |
65f38f15 | 3982 | if ((info->shared |
411e1bfb | 3983 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
3984 | || (h != NULL |
3985 | && (! info->symbolic | |
3986 | || h->root.type == bfd_link_hash_defweak | |
3987 | || (h->elf_link_hash_flags | |
3988 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
f4656909 AM |
3989 | || (ELIMINATE_COPY_RELOCS |
3990 | && !info->shared | |
65f38f15 AM |
3991 | && h != NULL |
3992 | && (h->root.type == bfd_link_hash_defweak | |
3993 | || (h->elf_link_hash_flags | |
3994 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
5bd4f169 | 3995 | { |
ec338859 AM |
3996 | struct ppc_dyn_relocs *p; |
3997 | struct ppc_dyn_relocs **head; | |
3998 | ||
65f38f15 AM |
3999 | /* We must copy these reloc types into the output file. |
4000 | Create a reloc section in dynobj and make room for | |
4001 | this reloc. */ | |
5bd4f169 AM |
4002 | if (sreloc == NULL) |
4003 | { | |
4004 | const char *name; | |
65f38f15 | 4005 | bfd *dynobj; |
5bd4f169 AM |
4006 | |
4007 | name = (bfd_elf_string_from_elf_section | |
4008 | (abfd, | |
4009 | elf_elfheader (abfd)->e_shstrndx, | |
4010 | elf_section_data (sec)->rel_hdr.sh_name)); | |
4011 | if (name == NULL) | |
b34976b6 | 4012 | return FALSE; |
5bd4f169 | 4013 | |
65f38f15 AM |
4014 | if (strncmp (name, ".rela", 5) != 0 |
4015 | || strcmp (bfd_get_section_name (abfd, sec), | |
4016 | name + 5) != 0) | |
4017 | { | |
4018 | (*_bfd_error_handler) | |
4019 | (_("%s: bad relocation section name `%s\'"), | |
4020 | bfd_archive_filename (abfd), name); | |
5d1634d7 | 4021 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
4022 | } |
4023 | ||
65f38f15 | 4024 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
4025 | sreloc = bfd_get_section_by_name (dynobj, name); |
4026 | if (sreloc == NULL) | |
4027 | { | |
4028 | flagword flags; | |
4029 | ||
4030 | sreloc = bfd_make_section (dynobj, name); | |
4031 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
4032 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4033 | if ((sec->flags & SEC_ALLOC) != 0) | |
4034 | flags |= SEC_ALLOC | SEC_LOAD; | |
4035 | if (sreloc == NULL | |
4036 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 4037 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 4038 | return FALSE; |
5bd4f169 | 4039 | } |
65f38f15 | 4040 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
4041 | } |
4042 | ||
65f38f15 AM |
4043 | /* If this is a global symbol, we count the number of |
4044 | relocations we need for this symbol. */ | |
4045 | if (h != NULL) | |
4046 | { | |
ec338859 | 4047 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
4048 | } |
4049 | else | |
4050 | { | |
ec338859 AM |
4051 | /* Track dynamic relocs needed for local syms too. |
4052 | We really need local syms available to do this | |
4053 | easily. Oh well. */ | |
4054 | ||
4055 | asection *s; | |
4056 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4057 | sec, r_symndx); | |
4058 | if (s == NULL) | |
b34976b6 | 4059 | return FALSE; |
ec338859 AM |
4060 | |
4061 | head = ((struct ppc_dyn_relocs **) | |
4062 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 4063 | } |
ec338859 AM |
4064 | |
4065 | p = *head; | |
4066 | if (p == NULL || p->sec != sec) | |
4067 | { | |
4ce794b7 | 4068 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 4069 | if (p == NULL) |
b34976b6 | 4070 | return FALSE; |
ec338859 AM |
4071 | p->next = *head; |
4072 | *head = p; | |
4073 | p->sec = sec; | |
4074 | p->count = 0; | |
4075 | p->pc_count = 0; | |
4076 | } | |
4077 | ||
4078 | p->count += 1; | |
411e1bfb | 4079 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4080 | p->pc_count += 1; |
65f38f15 | 4081 | } |
5bd4f169 | 4082 | break; |
65f38f15 AM |
4083 | |
4084 | default: | |
96e0dda4 | 4085 | break; |
5bd4f169 AM |
4086 | } |
4087 | } | |
4088 | ||
b34976b6 | 4089 | return TRUE; |
5bd4f169 AM |
4090 | } |
4091 | ||
4092 | /* Return the section that should be marked against GC for a given | |
4093 | relocation. */ | |
4094 | ||
4095 | static asection * | |
4ce794b7 AM |
4096 | ppc64_elf_gc_mark_hook (asection *sec, |
4097 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
4098 | Elf_Internal_Rela *rel, | |
4099 | struct elf_link_hash_entry *h, | |
4100 | Elf_Internal_Sym *sym) | |
5bd4f169 | 4101 | { |
1e2f5b6e AM |
4102 | asection *rsec = NULL; |
4103 | ||
5bd4f169 AM |
4104 | if (h != NULL) |
4105 | { | |
04c9666a | 4106 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e | 4107 | struct ppc_link_hash_entry *fdh; |
a33d1f77 | 4108 | |
4ce794b7 | 4109 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4110 | switch (r_type) |
5bd4f169 AM |
4111 | { |
4112 | case R_PPC64_GNU_VTINHERIT: | |
4113 | case R_PPC64_GNU_VTENTRY: | |
4114 | break; | |
4115 | ||
4116 | default: | |
4117 | switch (h->root.type) | |
4118 | { | |
4119 | case bfd_link_hash_defined: | |
4120 | case bfd_link_hash_defweak: | |
1e2f5b6e AM |
4121 | fdh = (struct ppc_link_hash_entry *) h; |
4122 | ||
4123 | /* Function descriptor syms cause the associated | |
4124 | function code sym section to be marked. */ | |
4125 | if (fdh->is_func_descriptor) | |
4126 | rsec = fdh->oh->root.u.def.section; | |
4127 | ||
4128 | /* Function entry syms return NULL if they are in .opd | |
4129 | and are not ._start (or others undefined on the ld | |
4130 | command line). Thus we avoid marking all function | |
b34976b6 | 4131 | sections, as all functions are referenced in .opd. */ |
1e2f5b6e AM |
4132 | else if ((fdh->oh != NULL |
4133 | && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry) | |
f0abc2a1 | 4134 | || ppc64_elf_section_data (sec)->opd.func_sec == NULL) |
1e2f5b6e AM |
4135 | rsec = h->root.u.def.section; |
4136 | break; | |
5bd4f169 AM |
4137 | |
4138 | case bfd_link_hash_common: | |
1e2f5b6e AM |
4139 | rsec = h->root.u.c.p->section; |
4140 | break; | |
5bd4f169 AM |
4141 | |
4142 | default: | |
4143 | break; | |
4144 | } | |
4145 | } | |
4146 | } | |
4147 | else | |
4148 | { | |
1e2f5b6e AM |
4149 | asection **opd_sym_section; |
4150 | ||
4151 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
f0abc2a1 | 4152 | opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec; |
1e2f5b6e AM |
4153 | if (opd_sym_section != NULL) |
4154 | rsec = opd_sym_section[sym->st_value / 24]; | |
f0abc2a1 | 4155 | else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL) |
1e2f5b6e | 4156 | rsec = NULL; |
5bd4f169 AM |
4157 | } |
4158 | ||
1e2f5b6e | 4159 | return rsec; |
5bd4f169 AM |
4160 | } |
4161 | ||
65f38f15 AM |
4162 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4163 | section being removed. */ | |
5bd4f169 | 4164 | |
b34976b6 | 4165 | static bfd_boolean |
4ce794b7 AM |
4166 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
4167 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4168 | { |
411e1bfb | 4169 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4170 | Elf_Internal_Shdr *symtab_hdr; |
4171 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4172 | struct got_entry **local_got_ents; |
5bd4f169 | 4173 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4174 | |
680a3378 AM |
4175 | if ((sec->flags & SEC_ALLOC) == 0) |
4176 | return TRUE; | |
4177 | ||
ec338859 AM |
4178 | elf_section_data (sec)->local_dynrel = NULL; |
4179 | ||
411e1bfb | 4180 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4181 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4182 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4183 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4184 | |
4185 | relend = relocs + sec->reloc_count; | |
4186 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4187 | { |
4188 | unsigned long r_symndx; | |
04c9666a | 4189 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4190 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4191 | char tls_type = 0; |
5bd4f169 | 4192 | |
a33d1f77 | 4193 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 | 4194 | r_type = ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4195 | if (r_symndx >= symtab_hdr->sh_info) |
4196 | { | |
4197 | struct ppc_link_hash_entry *eh; | |
4198 | struct ppc_dyn_relocs **pp; | |
4199 | struct ppc_dyn_relocs *p; | |
4200 | ||
4201 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4202 | eh = (struct ppc_link_hash_entry *) h; | |
4203 | ||
4204 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4205 | if (p->sec == sec) | |
4206 | { | |
4207 | /* Everything must go for SEC. */ | |
4208 | *pp = p->next; | |
4209 | break; | |
4210 | } | |
4211 | } | |
4212 | ||
a33d1f77 AM |
4213 | switch (r_type) |
4214 | { | |
411e1bfb AM |
4215 | case R_PPC64_GOT_TLSLD16: |
4216 | case R_PPC64_GOT_TLSLD16_LO: | |
4217 | case R_PPC64_GOT_TLSLD16_HI: | |
4218 | case R_PPC64_GOT_TLSLD16_HA: | |
e717da7e | 4219 | ppc64_tlsld_got (abfd)->refcount -= 1; |
951fd09b | 4220 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4221 | goto dogot; |
4222 | ||
4223 | case R_PPC64_GOT_TLSGD16: | |
4224 | case R_PPC64_GOT_TLSGD16_LO: | |
4225 | case R_PPC64_GOT_TLSGD16_HI: | |
4226 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4227 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4228 | goto dogot; |
4229 | ||
4230 | case R_PPC64_GOT_TPREL16_DS: | |
4231 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4232 | case R_PPC64_GOT_TPREL16_HI: | |
4233 | case R_PPC64_GOT_TPREL16_HA: | |
4234 | tls_type = TLS_TLS | TLS_TPREL; | |
4235 | goto dogot; | |
4236 | ||
4237 | case R_PPC64_GOT_DTPREL16_DS: | |
4238 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4239 | case R_PPC64_GOT_DTPREL16_HI: | |
4240 | case R_PPC64_GOT_DTPREL16_HA: | |
4241 | tls_type = TLS_TLS | TLS_DTPREL; | |
4242 | goto dogot; | |
4243 | ||
a33d1f77 AM |
4244 | case R_PPC64_GOT16: |
4245 | case R_PPC64_GOT16_DS: | |
4246 | case R_PPC64_GOT16_HA: | |
4247 | case R_PPC64_GOT16_HI: | |
4248 | case R_PPC64_GOT16_LO: | |
4249 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
4250 | dogot: |
4251 | { | |
4252 | struct got_entry *ent; | |
4253 | ||
58ac9f71 AM |
4254 | if (h != NULL) |
4255 | ent = h->got.glist; | |
411e1bfb AM |
4256 | else |
4257 | ent = local_got_ents[r_symndx]; | |
4258 | ||
4259 | for (; ent != NULL; ent = ent->next) | |
4260 | if (ent->addend == rel->r_addend | |
e717da7e | 4261 | && ent->owner == abfd |
411e1bfb AM |
4262 | && ent->tls_type == tls_type) |
4263 | break; | |
4264 | if (ent == NULL) | |
4265 | abort (); | |
4266 | if (ent->got.refcount > 0) | |
4267 | ent->got.refcount -= 1; | |
4268 | } | |
a33d1f77 | 4269 | break; |
65f38f15 | 4270 | |
a33d1f77 AM |
4271 | case R_PPC64_PLT16_HA: |
4272 | case R_PPC64_PLT16_HI: | |
4273 | case R_PPC64_PLT16_LO: | |
4274 | case R_PPC64_PLT32: | |
4275 | case R_PPC64_PLT64: | |
721956f4 AM |
4276 | case R_PPC64_REL14: |
4277 | case R_PPC64_REL14_BRNTAKEN: | |
4278 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 4279 | case R_PPC64_REL24: |
58ac9f71 | 4280 | if (h != NULL) |
5d1634d7 | 4281 | { |
411e1bfb AM |
4282 | struct plt_entry *ent; |
4283 | ||
411e1bfb AM |
4284 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4285 | if (ent->addend == rel->r_addend) | |
4286 | break; | |
4287 | if (ent == NULL) | |
4288 | abort (); | |
4289 | if (ent->plt.refcount > 0) | |
4290 | ent->plt.refcount -= 1; | |
5d1634d7 | 4291 | } |
e86ce104 | 4292 | break; |
5d1634d7 | 4293 | |
a33d1f77 AM |
4294 | default: |
4295 | break; | |
4296 | } | |
4297 | } | |
b34976b6 | 4298 | return TRUE; |
5bd4f169 AM |
4299 | } |
4300 | ||
e86ce104 AM |
4301 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
4302 | information on function code symbol entries to their corresponding | |
4303 | function descriptor symbol entries. */ | |
b34976b6 | 4304 | static bfd_boolean |
4ce794b7 | 4305 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 4306 | { |
e86ce104 | 4307 | struct bfd_link_info *info; |
65f38f15 | 4308 | struct ppc_link_hash_table *htab; |
411e1bfb | 4309 | struct plt_entry *ent; |
50bc7936 AM |
4310 | struct ppc_link_hash_entry *fh; |
4311 | struct ppc_link_hash_entry *fdh; | |
4312 | bfd_boolean force_local; | |
5bd4f169 | 4313 | |
50bc7936 AM |
4314 | fh = (struct ppc_link_hash_entry *) h; |
4315 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
b34976b6 | 4316 | return TRUE; |
e86ce104 | 4317 | |
50bc7936 AM |
4318 | if (fh->elf.root.type == bfd_link_hash_warning) |
4319 | fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link; | |
e92d460e | 4320 | |
4ce794b7 | 4321 | info = inf; |
65f38f15 | 4322 | htab = ppc_hash_table (info); |
5bd4f169 | 4323 | |
e86ce104 AM |
4324 | /* If this is a function code symbol, transfer dynamic linking |
4325 | information to the function descriptor symbol. */ | |
50bc7936 | 4326 | if (!fh->is_func) |
b34976b6 | 4327 | return TRUE; |
e86ce104 | 4328 | |
50bc7936 AM |
4329 | if (fh->elf.root.type == bfd_link_hash_undefweak |
4330 | && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR)) | |
b34976b6 | 4331 | htab->have_undefweak = TRUE; |
805fc799 | 4332 | |
50bc7936 | 4333 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
411e1bfb AM |
4334 | if (ent->plt.refcount > 0) |
4335 | break; | |
50bc7936 AM |
4336 | if (ent == NULL |
4337 | || fh->elf.root.root.string[0] != '.' | |
4338 | || fh->elf.root.root.string[1] == '\0') | |
4339 | return TRUE; | |
5bd4f169 | 4340 | |
50bc7936 AM |
4341 | /* Find the corresponding function descriptor symbol. Create it |
4342 | as undefined if necessary. */ | |
5bd4f169 | 4343 | |
50bc7936 AM |
4344 | fdh = get_fdh (fh, htab); |
4345 | if (fdh != NULL) | |
4346 | while (fdh->elf.root.type == bfd_link_hash_indirect | |
4347 | || fdh->elf.root.type == bfd_link_hash_warning) | |
4348 | fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link; | |
5bd4f169 | 4349 | |
50bc7936 AM |
4350 | if (fdh == NULL |
4351 | && info->shared | |
4352 | && (fh->elf.root.type == bfd_link_hash_undefined | |
4353 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
4354 | { | |
4355 | bfd *abfd; | |
4356 | asymbol *newsym; | |
4357 | struct bfd_link_hash_entry *bh; | |
4358 | ||
4359 | abfd = fh->elf.root.u.undef.abfd; | |
4360 | newsym = bfd_make_empty_symbol (abfd); | |
4361 | newsym->name = fh->elf.root.root.string + 1; | |
4362 | newsym->section = bfd_und_section_ptr; | |
4363 | newsym->value = 0; | |
4364 | newsym->flags = BSF_OBJECT; | |
4365 | if (fh->elf.root.type == bfd_link_hash_undefweak) | |
4366 | newsym->flags |= BSF_WEAK; | |
4367 | ||
4368 | bh = &fdh->elf.root; | |
4369 | if ( !(_bfd_generic_link_add_one_symbol | |
4370 | (info, abfd, newsym->name, newsym->flags, | |
4371 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) | |
648cca2c | 4372 | { |
50bc7936 | 4373 | return FALSE; |
648cca2c | 4374 | } |
50bc7936 AM |
4375 | fdh = (struct ppc_link_hash_entry *) bh; |
4376 | fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF; | |
4377 | fdh->elf.size = 24; | |
4378 | fdh->elf.type = STT_OBJECT; | |
4379 | } | |
648cca2c | 4380 | |
50bc7936 AM |
4381 | if (fdh != NULL |
4382 | && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
4383 | && (info->shared | |
4384 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4385 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0 | |
4386 | || (fdh->elf.root.type == bfd_link_hash_undefweak | |
4387 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
4388 | { | |
4389 | if (fdh->elf.dynindx == -1) | |
4390 | if (! bfd_elf64_link_record_dynamic_symbol (info, &fdh->elf)) | |
4391 | return FALSE; | |
4392 | fdh->elf.elf_link_hash_flags | |
4393 | |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR | |
4394 | | ELF_LINK_HASH_REF_DYNAMIC | |
4395 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
4396 | | ELF_LINK_NON_GOT_REF)); | |
4397 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) | |
e86ce104 | 4398 | { |
50bc7936 AM |
4399 | fdh->elf.plt.plist = fh->elf.plt.plist; |
4400 | fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
e86ce104 | 4401 | } |
50bc7936 AM |
4402 | fdh->is_func_descriptor = 1; |
4403 | fdh->oh = &fh->elf; | |
4404 | fh->oh = &fdh->elf; | |
e86ce104 AM |
4405 | } |
4406 | ||
50bc7936 AM |
4407 | /* Now that the info is on the function descriptor, clear the |
4408 | function code sym info. Any function code syms for which we | |
4409 | don't have a definition in a regular file, we force local. | |
4410 | This prevents a shared library from exporting syms that have | |
4411 | been imported from another library. Function code syms that | |
4412 | are really in the library we must leave global to prevent the | |
4413 | linker dragging in a definition from a static library. */ | |
4414 | force_local | |
4415 | = (info->shared | |
4416 | && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4417 | || fdh == NULL | |
4418 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4419 | || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)); | |
4420 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); | |
4421 | ||
b34976b6 | 4422 | return TRUE; |
e86ce104 | 4423 | } |
40b8271b | 4424 | |
82bd7b59 AM |
4425 | #define MIN_SAVE_FPR 14 |
4426 | #define MAX_SAVE_FPR 31 | |
4427 | ||
e86ce104 | 4428 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
4429 | this hook to a) provide some gcc support functions, and b) transfer |
4430 | dynamic linking information gathered so far on function code symbol | |
4431 | entries, to their corresponding function descriptor symbol entries. */ | |
b34976b6 | 4432 | static bfd_boolean |
4ce794b7 AM |
4433 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
4434 | struct bfd_link_info *info) | |
e86ce104 AM |
4435 | { |
4436 | struct ppc_link_hash_table *htab; | |
82bd7b59 AM |
4437 | unsigned int lowest_savef = MAX_SAVE_FPR + 2; |
4438 | unsigned int lowest_restf = MAX_SAVE_FPR + 2; | |
4439 | unsigned int i; | |
4440 | struct elf_link_hash_entry *h; | |
721956f4 | 4441 | bfd_byte *p; |
82bd7b59 | 4442 | char sym[10]; |
e86ce104 AM |
4443 | |
4444 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
4445 | |
4446 | if (htab->sfpr == NULL) | |
4447 | /* We don't have any relocs. */ | |
b34976b6 | 4448 | return TRUE; |
82bd7b59 AM |
4449 | |
4450 | /* First provide any missing ._savef* and ._restf* functions. */ | |
4451 | memcpy (sym, "._savef14", 10); | |
4452 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4453 | { | |
4454 | sym[7] = i / 10 + '0'; | |
4455 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4456 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 | 4457 | if (h != NULL |
772119ce | 4458 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
82bd7b59 AM |
4459 | { |
4460 | if (lowest_savef > i) | |
4461 | lowest_savef = i; | |
4462 | h->root.type = bfd_link_hash_defined; | |
4463 | h->root.u.def.section = htab->sfpr; | |
4464 | h->root.u.def.value = (i - lowest_savef) * 4; | |
4465 | h->type = STT_FUNC; | |
4466 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
772119ce | 4467 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
82bd7b59 AM |
4468 | } |
4469 | } | |
4470 | ||
4471 | memcpy (sym, "._restf14", 10); | |
4472 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4473 | { | |
4474 | sym[7] = i / 10 + '0'; | |
4475 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4476 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 | 4477 | if (h != NULL |
772119ce | 4478 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
82bd7b59 AM |
4479 | { |
4480 | if (lowest_restf > i) | |
4481 | lowest_restf = i; | |
4482 | h->root.type = bfd_link_hash_defined; | |
4483 | h->root.u.def.section = htab->sfpr; | |
4484 | h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 | |
4485 | + (i - lowest_restf) * 4); | |
4486 | h->type = STT_FUNC; | |
4487 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
772119ce | 4488 | _bfd_elf_link_hash_hide_symbol (info, h, TRUE); |
82bd7b59 AM |
4489 | } |
4490 | } | |
4491 | ||
4ce794b7 | 4492 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
805fc799 | 4493 | |
82bd7b59 AM |
4494 | htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 |
4495 | + (MAX_SAVE_FPR + 2 - lowest_restf) * 4); | |
4496 | ||
4497 | if (htab->sfpr->_raw_size == 0) | |
805fc799 AM |
4498 | { |
4499 | if (!htab->have_undefweak) | |
4500 | { | |
4501 | _bfd_strip_section_from_output (info, htab->sfpr); | |
b34976b6 | 4502 | return TRUE; |
805fc799 AM |
4503 | } |
4504 | ||
4505 | htab->sfpr->_raw_size = 4; | |
4506 | } | |
82bd7b59 | 4507 | |
4ce794b7 | 4508 | p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size); |
721956f4 | 4509 | if (p == NULL) |
b34976b6 | 4510 | return FALSE; |
721956f4 AM |
4511 | htab->sfpr->contents = p; |
4512 | ||
4513 | for (i = lowest_savef; i <= MAX_SAVE_FPR; i++) | |
4514 | { | |
4515 | unsigned int fpr = i << 21; | |
4516 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4517 | bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p); | |
4518 | p += 4; | |
4519 | } | |
4520 | if (lowest_savef <= MAX_SAVE_FPR) | |
4521 | { | |
82bd7b59 AM |
4522 | bfd_put_32 (htab->elf.dynobj, BLR, p); |
4523 | p += 4; | |
721956f4 | 4524 | } |
82bd7b59 | 4525 | |
721956f4 AM |
4526 | for (i = lowest_restf; i <= MAX_SAVE_FPR; i++) |
4527 | { | |
4528 | unsigned int fpr = i << 21; | |
4529 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4530 | bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p); | |
82bd7b59 AM |
4531 | p += 4; |
4532 | } | |
721956f4 AM |
4533 | if (lowest_restf <= MAX_SAVE_FPR |
4534 | || htab->sfpr->_raw_size == 4) | |
4535 | { | |
4536 | bfd_put_32 (htab->elf.dynobj, BLR, p); | |
4537 | } | |
82bd7b59 | 4538 | |
b34976b6 | 4539 | return TRUE; |
e86ce104 AM |
4540 | } |
4541 | ||
4542 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4543 | regular object. The current definition is in some section of the | |
4544 | dynamic object, but we're not including those sections. We have to | |
4545 | change the definition to something the rest of the link can | |
4546 | understand. */ | |
4547 | ||
b34976b6 | 4548 | static bfd_boolean |
4ce794b7 AM |
4549 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
4550 | struct elf_link_hash_entry *h) | |
e86ce104 AM |
4551 | { |
4552 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
4553 | asection *s; |
4554 | unsigned int power_of_two; | |
4555 | ||
4556 | htab = ppc_hash_table (info); | |
4557 | ||
4558 | /* Deal with function syms. */ | |
4559 | if (h->type == STT_FUNC | |
4560 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4561 | { | |
4562 | /* Clear procedure linkage table information for any symbol that | |
4563 | won't need a .plt entry. */ | |
411e1bfb AM |
4564 | struct plt_entry *ent; |
4565 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4566 | if (ent->plt.refcount > 0) | |
4567 | break; | |
e86ce104 | 4568 | if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor |
411e1bfb | 4569 | || ent == NULL |
9c7a29a3 AM |
4570 | || SYMBOL_CALLS_LOCAL (info, h) |
4571 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4572 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 4573 | { |
411e1bfb | 4574 | h->plt.plist = NULL; |
40b8271b | 4575 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
40b8271b | 4576 | } |
5bd4f169 | 4577 | } |
bbd7ec4a | 4578 | else |
411e1bfb | 4579 | h->plt.plist = NULL; |
5bd4f169 AM |
4580 | |
4581 | /* If this is a weak symbol, and there is a real definition, the | |
4582 | processor independent code will have arranged for us to see the | |
4583 | real definition first, and we can just use the same value. */ | |
4584 | if (h->weakdef != NULL) | |
4585 | { | |
4586 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4587 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4588 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4589 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
4590 | if (ELIMINATE_COPY_RELOCS) |
4591 | h->elf_link_hash_flags | |
4592 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
4593 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 4594 | return TRUE; |
5bd4f169 AM |
4595 | } |
4596 | ||
5bd4f169 AM |
4597 | /* If we are creating a shared library, we must presume that the |
4598 | only references to the symbol are via the global offset table. | |
4599 | For such cases we need not do anything here; the relocations will | |
4600 | be handled correctly by relocate_section. */ | |
4601 | if (info->shared) | |
b34976b6 | 4602 | return TRUE; |
5bd4f169 | 4603 | |
65f38f15 AM |
4604 | /* If there are no references to this symbol that do not use the |
4605 | GOT, we don't need to generate a copy reloc. */ | |
4606 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 4607 | return TRUE; |
65f38f15 | 4608 | |
f4656909 | 4609 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 4610 | { |
f4656909 AM |
4611 | struct ppc_link_hash_entry * eh; |
4612 | struct ppc_dyn_relocs *p; | |
65f38f15 | 4613 | |
f4656909 AM |
4614 | eh = (struct ppc_link_hash_entry *) h; |
4615 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4616 | { | |
4617 | s = p->sec->output_section; | |
4618 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
4619 | break; | |
4620 | } | |
4621 | ||
4622 | /* If we didn't find any dynamic relocs in read-only sections, then | |
4623 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
4624 | if (p == NULL) | |
4625 | { | |
4626 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
4627 | return TRUE; | |
4628 | } | |
65f38f15 AM |
4629 | } |
4630 | ||
5d35169e | 4631 | if (h->plt.plist != NULL) |
97b639ba AM |
4632 | { |
4633 | /* We should never get here, but unfortunately there are versions | |
4634 | of gcc out there that improperly (for this ABI) put initialized | |
4635 | function pointers, vtable refs and suchlike in read-only | |
4636 | sections. Allow them to proceed, but warn that this might | |
4637 | break at runtime. */ | |
4638 | (*_bfd_error_handler) | |
4639 | (_("copy reloc against `%s' requires lazy plt linking; " | |
4640 | "avoid setting LD_BIND_NOW=1 or upgrade gcc"), | |
4641 | h->root.root.string); | |
4642 | } | |
5d35169e AM |
4643 | |
4644 | /* This is a reference to a symbol defined by a dynamic object which | |
4645 | is not a function. */ | |
4646 | ||
5bd4f169 AM |
4647 | /* We must allocate the symbol in our .dynbss section, which will |
4648 | become part of the .bss section of the executable. There will be | |
4649 | an entry for this symbol in the .dynsym section. The dynamic | |
4650 | object will contain position independent code, so all references | |
4651 | from the dynamic object to this symbol will go through the global | |
4652 | offset table. The dynamic linker will use the .dynsym entry to | |
4653 | determine the address it must put in the global offset table, so | |
4654 | both the dynamic object and the regular object will refer to the | |
4655 | same memory location for the variable. */ | |
5bd4f169 | 4656 | |
04c9666a AM |
4657 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
4658 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
4659 | runtime process image. We need to remember the offset into the |
4660 | .rela.bss section we are going to use. */ | |
4661 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4662 | { | |
4ce794b7 | 4663 | htab->relbss->_raw_size += sizeof (Elf64_External_Rela); |
5bd4f169 AM |
4664 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4665 | } | |
4666 | ||
4667 | /* We need to figure out the alignment required for this symbol. I | |
4668 | have no idea how ELF linkers handle this. */ | |
4669 | power_of_two = bfd_log2 (h->size); | |
4670 | if (power_of_two > 4) | |
4671 | power_of_two = 4; | |
4672 | ||
4673 | /* Apply the required alignment. */ | |
4ce794b7 | 4674 | s = htab->dynbss; |
65f38f15 AM |
4675 | s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two)); |
4676 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
5bd4f169 | 4677 | { |
65f38f15 | 4678 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 4679 | return FALSE; |
5bd4f169 AM |
4680 | } |
4681 | ||
4682 | /* Define the symbol as being at this point in the section. */ | |
4683 | h->root.u.def.section = s; | |
4684 | h->root.u.def.value = s->_raw_size; | |
4685 | ||
4686 | /* Increment the section size to make room for the symbol. */ | |
4687 | s->_raw_size += h->size; | |
4688 | ||
b34976b6 | 4689 | return TRUE; |
5bd4f169 AM |
4690 | } |
4691 | ||
e86ce104 AM |
4692 | /* If given a function descriptor symbol, hide both the function code |
4693 | sym and the descriptor. */ | |
4694 | static void | |
4ce794b7 AM |
4695 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
4696 | struct elf_link_hash_entry *h, | |
4697 | bfd_boolean force_local) | |
e86ce104 AM |
4698 | { |
4699 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); | |
4700 | ||
4701 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) | |
4702 | { | |
721956f4 | 4703 | struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh; |
e86ce104 | 4704 | |
721956f4 | 4705 | if (fh == NULL) |
d1329ca3 AM |
4706 | { |
4707 | const char *p, *q; | |
4708 | struct ppc_link_hash_table *htab; | |
4709 | char save; | |
4710 | ||
4711 | /* We aren't supposed to use alloca in BFD because on | |
4712 | systems which do not have alloca the version in libiberty | |
4713 | calls xmalloc, which might cause the program to crash | |
4714 | when it runs out of memory. This function doesn't have a | |
4715 | return status, so there's no way to gracefully return an | |
4716 | error. So cheat. We know that string[-1] can be safely | |
4717 | dereferenced; It's either a string in an ELF string | |
4718 | table, or allocated in an objalloc structure. */ | |
4719 | ||
4720 | p = h->root.root.string - 1; | |
4721 | save = *p; | |
4722 | *(char *) p = '.'; | |
4723 | htab = ppc_hash_table (info); | |
b34976b6 | 4724 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4725 | *(char *) p = save; |
4726 | ||
4727 | /* Unfortunately, if it so happens that the string we were | |
4728 | looking for was allocated immediately before this string, | |
4729 | then we overwrote the string terminator. That's the only | |
4730 | reason the lookup should fail. */ | |
4731 | if (fh == NULL) | |
4732 | { | |
4733 | q = h->root.root.string + strlen (h->root.root.string); | |
4734 | while (q >= h->root.root.string && *q == *p) | |
4735 | --q, --p; | |
4736 | if (q < h->root.root.string && *p == '.') | |
b34976b6 | 4737 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4738 | } |
4739 | if (fh != NULL) | |
4740 | { | |
4741 | ((struct ppc_link_hash_entry *) h)->oh = fh; | |
4742 | ((struct ppc_link_hash_entry *) fh)->oh = h; | |
4743 | } | |
4744 | } | |
e86ce104 AM |
4745 | if (fh != NULL) |
4746 | _bfd_elf_link_hash_hide_symbol (info, fh, force_local); | |
4747 | } | |
4748 | } | |
4749 | ||
411e1bfb | 4750 | static bfd_boolean |
4ce794b7 AM |
4751 | get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp, |
4752 | asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp, | |
4753 | unsigned long r_symndx, bfd *ibfd) | |
411e1bfb AM |
4754 | { |
4755 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4756 | ||
4757 | if (r_symndx >= symtab_hdr->sh_info) | |
4758 | { | |
4759 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4760 | struct elf_link_hash_entry *h; | |
4761 | ||
4762 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4763 | while (h->root.type == bfd_link_hash_indirect | |
4764 | || h->root.type == bfd_link_hash_warning) | |
4765 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4766 | ||
4767 | if (hp != NULL) | |
4768 | *hp = h; | |
4769 | ||
4770 | if (symp != NULL) | |
4771 | *symp = NULL; | |
4772 | ||
4773 | if (symsecp != NULL) | |
4774 | { | |
4775 | asection *symsec = NULL; | |
4776 | if (h->root.type == bfd_link_hash_defined | |
4777 | || h->root.type == bfd_link_hash_defweak) | |
4778 | symsec = h->root.u.def.section; | |
4779 | *symsecp = symsec; | |
4780 | } | |
4781 | ||
e7b938ca | 4782 | if (tls_maskp != NULL) |
411e1bfb AM |
4783 | { |
4784 | struct ppc_link_hash_entry *eh; | |
4785 | ||
4786 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4787 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
4788 | } |
4789 | } | |
4790 | else | |
4791 | { | |
4792 | Elf_Internal_Sym *sym; | |
4793 | Elf_Internal_Sym *locsyms = *locsymsp; | |
4794 | ||
4795 | if (locsyms == NULL) | |
4796 | { | |
4797 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4798 | if (locsyms == NULL) | |
4799 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4800 | symtab_hdr->sh_info, | |
4801 | 0, NULL, NULL, NULL); | |
4802 | if (locsyms == NULL) | |
4803 | return FALSE; | |
4804 | *locsymsp = locsyms; | |
4805 | } | |
4806 | sym = locsyms + r_symndx; | |
4807 | ||
4808 | if (hp != NULL) | |
4809 | *hp = NULL; | |
4810 | ||
4811 | if (symp != NULL) | |
4812 | *symp = sym; | |
4813 | ||
4814 | if (symsecp != NULL) | |
4815 | { | |
4816 | asection *symsec = NULL; | |
4817 | if ((sym->st_shndx != SHN_UNDEF | |
4818 | && sym->st_shndx < SHN_LORESERVE) | |
4819 | || sym->st_shndx > SHN_HIRESERVE) | |
4820 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
4821 | *symsecp = symsec; | |
4822 | } | |
4823 | ||
e7b938ca | 4824 | if (tls_maskp != NULL) |
411e1bfb AM |
4825 | { |
4826 | struct got_entry **lgot_ents; | |
e7b938ca | 4827 | char *tls_mask; |
411e1bfb | 4828 | |
e7b938ca | 4829 | tls_mask = NULL; |
411e1bfb AM |
4830 | lgot_ents = elf_local_got_ents (ibfd); |
4831 | if (lgot_ents != NULL) | |
4832 | { | |
e7b938ca AM |
4833 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
4834 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 4835 | } |
e7b938ca | 4836 | *tls_maskp = tls_mask; |
411e1bfb AM |
4837 | } |
4838 | } | |
4839 | return TRUE; | |
4840 | } | |
4841 | ||
e7b938ca | 4842 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 4843 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 4844 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
4845 | |
4846 | static int | |
0d4792f7 AM |
4847 | get_tls_mask (char **tls_maskp, unsigned long *toc_symndx, |
4848 | Elf_Internal_Sym **locsymsp, | |
4ce794b7 | 4849 | const Elf_Internal_Rela *rel, bfd *ibfd) |
411e1bfb AM |
4850 | { |
4851 | unsigned long r_symndx; | |
0d4792f7 | 4852 | int next_r; |
411e1bfb AM |
4853 | struct elf_link_hash_entry *h; |
4854 | Elf_Internal_Sym *sym; | |
4855 | asection *sec; | |
4856 | bfd_vma off; | |
4857 | ||
4858 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 4859 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4860 | return 0; |
411e1bfb | 4861 | |
e7b938ca | 4862 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
4863 | || sec == NULL |
4864 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 4865 | return 1; |
411e1bfb AM |
4866 | |
4867 | /* Look inside a TOC section too. */ | |
4868 | if (h != NULL) | |
4869 | { | |
4870 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
4871 | off = h->root.u.def.value; | |
4872 | } | |
4873 | else | |
4874 | off = sym->st_value; | |
4875 | off += rel->r_addend; | |
4876 | BFD_ASSERT (off % 8 == 0); | |
4877 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 4878 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 4879 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4880 | return 0; |
0d4792f7 AM |
4881 | if (toc_symndx != NULL) |
4882 | *toc_symndx = r_symndx; | |
4883 | if ((h == NULL | |
4884 | || ((h->root.type == bfd_link_hash_defined | |
4885 | || h->root.type == bfd_link_hash_defweak) | |
4886 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4887 | && (next_r == -1 || next_r == -2)) | |
4888 | return 1 - next_r; | |
951fd09b | 4889 | return 1; |
411e1bfb AM |
4890 | } |
4891 | ||
754021d0 AM |
4892 | /* Adjust all global syms defined in opd sections. In gcc generated |
4893 | code these will already have been done, but I suppose we have to | |
4894 | cater for all sorts of hand written assembly. */ | |
4895 | ||
4896 | static bfd_boolean | |
4897 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
4898 | { | |
4899 | struct ppc_link_hash_entry *eh; | |
4900 | asection *sym_sec; | |
4901 | long *opd_adjust; | |
4902 | ||
4903 | if (h->root.type == bfd_link_hash_indirect) | |
4904 | return TRUE; | |
4905 | ||
4906 | if (h->root.type == bfd_link_hash_warning) | |
4907 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4908 | ||
4909 | if (h->root.type != bfd_link_hash_defined | |
4910 | && h->root.type != bfd_link_hash_defweak) | |
4911 | return TRUE; | |
4912 | ||
4913 | eh = (struct ppc_link_hash_entry *) h; | |
4914 | if (eh->adjust_done) | |
4915 | return TRUE; | |
4916 | ||
4917 | sym_sec = eh->elf.root.u.def.section; | |
4918 | if (sym_sec != NULL | |
4919 | && elf_section_data (sym_sec) != NULL | |
4920 | && (opd_adjust = ppc64_elf_section_data (sym_sec)->opd.adjust) != NULL) | |
4921 | { | |
4922 | eh->elf.root.u.def.value += opd_adjust[eh->elf.root.u.def.value / 24]; | |
4923 | eh->adjust_done = 1; | |
4924 | } | |
4925 | return TRUE; | |
4926 | } | |
4927 | ||
4928 | /* Remove unused Official Procedure Descriptor entries. Currently we | |
4929 | only remove those associated with functions in discarded link-once | |
4930 | sections, or weakly defined functions that have been overridden. It | |
4931 | would be possible to remove many more entries for statically linked | |
4932 | applications. */ | |
4933 | ||
b34976b6 | 4934 | bfd_boolean |
4ce794b7 | 4935 | ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info) |
1e2f5b6e AM |
4936 | { |
4937 | bfd *ibfd; | |
754021d0 | 4938 | bfd_boolean some_edited = FALSE; |
1e2f5b6e | 4939 | |
411e1bfb | 4940 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
4941 | { |
4942 | asection *sec; | |
4943 | Elf_Internal_Rela *relstart, *rel, *relend; | |
4944 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 4945 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
4946 | struct elf_link_hash_entry **sym_hashes; |
4947 | bfd_vma offset; | |
d6fe2dc1 | 4948 | bfd_size_type amt; |
1e2f5b6e | 4949 | long *adjust; |
b34976b6 | 4950 | bfd_boolean need_edit; |
1e2f5b6e AM |
4951 | |
4952 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
4953 | if (sec == NULL) | |
4954 | continue; | |
4955 | ||
d6fe2dc1 | 4956 | amt = sec->_raw_size * sizeof (long) / 24; |
f0abc2a1 | 4957 | adjust = ppc64_elf_section_data (sec)->opd.adjust; |
d6fe2dc1 AM |
4958 | if (adjust == NULL) |
4959 | { | |
4960 | /* Must be a ld -r link. ie. check_relocs hasn't been | |
4961 | called. */ | |
4ce794b7 | 4962 | adjust = bfd_zalloc (obfd, amt); |
f0abc2a1 | 4963 | ppc64_elf_section_data (sec)->opd.adjust = adjust; |
d6fe2dc1 | 4964 | } |
4ce794b7 | 4965 | memset (adjust, 0, amt); |
1e2f5b6e AM |
4966 | |
4967 | if (sec->output_section == bfd_abs_section_ptr) | |
4968 | continue; | |
4969 | ||
4970 | /* Look through the section relocs. */ | |
4971 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
4972 | continue; | |
4973 | ||
6cdc0ccc | 4974 | local_syms = NULL; |
1e2f5b6e AM |
4975 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
4976 | sym_hashes = elf_sym_hashes (ibfd); | |
4977 | ||
4978 | /* Read the relocations. */ | |
4ce794b7 | 4979 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 4980 | info->keep_memory); |
1e2f5b6e | 4981 | if (relstart == NULL) |
b34976b6 | 4982 | return FALSE; |
1e2f5b6e AM |
4983 | |
4984 | /* First run through the relocs to check they are sane, and to | |
4985 | determine whether we need to edit this opd section. */ | |
b34976b6 | 4986 | need_edit = FALSE; |
1e2f5b6e AM |
4987 | offset = 0; |
4988 | relend = relstart + sec->reloc_count; | |
50bc7936 | 4989 | for (rel = relstart; rel < relend; ) |
1e2f5b6e | 4990 | { |
04c9666a | 4991 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
4992 | unsigned long r_symndx; |
4993 | asection *sym_sec; | |
4994 | struct elf_link_hash_entry *h; | |
4995 | Elf_Internal_Sym *sym; | |
4996 | ||
4997 | /* .opd contains a regular array of 24 byte entries. We're | |
4998 | only interested in the reloc pointing to a function entry | |
4999 | point. */ | |
50bc7936 AM |
5000 | if (rel->r_offset != offset |
5001 | || rel + 1 >= relend | |
5002 | || (rel + 1)->r_offset != offset + 8) | |
1e2f5b6e AM |
5003 | { |
5004 | /* If someone messes with .opd alignment then after a | |
5005 | "ld -r" we might have padding in the middle of .opd. | |
5006 | Also, there's nothing to prevent someone putting | |
5007 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 5008 | optimization for them! */ |
1e2f5b6e AM |
5009 | (*_bfd_error_handler) |
5010 | (_("%s: .opd is not a regular array of opd entries"), | |
5011 | bfd_archive_filename (ibfd)); | |
b34976b6 | 5012 | need_edit = FALSE; |
1e2f5b6e AM |
5013 | break; |
5014 | } | |
5015 | ||
50bc7936 AM |
5016 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
5017 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
5018 | { | |
5019 | (*_bfd_error_handler) | |
5020 | (_("%s: unexpected reloc type %u in .opd section"), | |
5021 | bfd_archive_filename (ibfd), r_type); | |
5022 | need_edit = FALSE; | |
5023 | break; | |
5024 | } | |
5025 | ||
1e2f5b6e | 5026 | r_symndx = ELF64_R_SYM (rel->r_info); |
411e1bfb AM |
5027 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
5028 | r_symndx, ibfd)) | |
50bc7936 | 5029 | goto error_ret; |
1e2f5b6e AM |
5030 | |
5031 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
5032 | { | |
411e1bfb AM |
5033 | const char *sym_name; |
5034 | if (h != NULL) | |
5035 | sym_name = h->root.root.string; | |
5036 | else | |
5037 | sym_name = bfd_elf_local_sym_name (ibfd, sym); | |
5038 | ||
1e2f5b6e AM |
5039 | (*_bfd_error_handler) |
5040 | (_("%s: undefined sym `%s' in .opd section"), | |
5041 | bfd_archive_filename (ibfd), | |
411e1bfb | 5042 | sym_name); |
b34976b6 | 5043 | need_edit = FALSE; |
1e2f5b6e AM |
5044 | break; |
5045 | } | |
5046 | ||
51020317 AM |
5047 | /* opd entries are always for functions defined in the |
5048 | current input bfd. If the symbol isn't defined in the | |
5049 | input bfd, then we won't be using the function in this | |
5050 | bfd; It must be defined in a linkonce section in another | |
5051 | bfd, or is weak. It's also possible that we are | |
5052 | discarding the function due to a linker script /DISCARD/, | |
5053 | which we test for via the output_section. */ | |
5054 | if (sym_sec->owner != ibfd | |
5055 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 5056 | need_edit = TRUE; |
1e2f5b6e AM |
5057 | |
5058 | offset += 24; | |
50bc7936 AM |
5059 | rel += 2; |
5060 | /* Allow for the possibility of a reloc on the third word. */ | |
5061 | if (rel < relend | |
5062 | && rel->r_offset == offset - 8) | |
5063 | rel += 1; | |
1e2f5b6e AM |
5064 | } |
5065 | ||
5066 | if (need_edit) | |
5067 | { | |
5068 | Elf_Internal_Rela *write_rel; | |
5069 | bfd_byte *rptr, *wptr; | |
b34976b6 | 5070 | bfd_boolean skip; |
1e2f5b6e AM |
5071 | |
5072 | /* This seems a waste of time as input .opd sections are all | |
5073 | zeros as generated by gcc, but I suppose there's no reason | |
5074 | this will always be so. We might start putting something in | |
5075 | the third word of .opd entries. */ | |
5076 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
5077 | { | |
5078 | bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size); | |
6cdc0ccc | 5079 | if (loc == NULL |
4ce794b7 | 5080 | || !bfd_get_section_contents (ibfd, sec, loc, 0, |
6cdc0ccc AM |
5081 | sec->_raw_size)) |
5082 | { | |
50bc7936 | 5083 | error_ret: |
6cdc0ccc AM |
5084 | if (local_syms != NULL |
5085 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5086 | free (local_syms); | |
6cdc0ccc AM |
5087 | if (elf_section_data (sec)->relocs != relstart) |
5088 | free (relstart); | |
b34976b6 | 5089 | return FALSE; |
6cdc0ccc | 5090 | } |
1e2f5b6e AM |
5091 | sec->contents = loc; |
5092 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
5093 | } | |
5094 | ||
5095 | elf_section_data (sec)->relocs = relstart; | |
5096 | ||
5097 | wptr = sec->contents; | |
5098 | rptr = sec->contents; | |
5099 | write_rel = relstart; | |
b34976b6 | 5100 | skip = FALSE; |
1e2f5b6e AM |
5101 | offset = 0; |
5102 | for (rel = relstart; rel < relend; rel++) | |
5103 | { | |
50bc7936 AM |
5104 | unsigned long r_symndx; |
5105 | asection *sym_sec; | |
5106 | struct elf_link_hash_entry *h; | |
5107 | Elf_Internal_Sym *sym; | |
5108 | ||
5109 | r_symndx = ELF64_R_SYM (rel->r_info); | |
5110 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
d37c89e5 | 5111 | r_symndx, ibfd)) |
50bc7936 AM |
5112 | goto error_ret; |
5113 | ||
1e2f5b6e AM |
5114 | if (rel->r_offset == offset) |
5115 | { | |
50bc7936 AM |
5116 | struct ppc_link_hash_entry *fdh = NULL; |
5117 | if (h != NULL) | |
5118 | fdh = get_fdh ((struct ppc_link_hash_entry *) h, | |
5119 | ppc_hash_table (info)); | |
1e2f5b6e | 5120 | |
51020317 AM |
5121 | skip = (sym_sec->owner != ibfd |
5122 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
5123 | if (skip) |
5124 | { | |
0be617ce | 5125 | if (h != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
5126 | { |
5127 | /* Arrange for the function descriptor sym | |
5128 | to be dropped. */ | |
d6fe2dc1 AM |
5129 | fdh->elf.root.u.def.value = 0; |
5130 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 AM |
5131 | } |
5132 | } | |
5133 | else | |
1e2f5b6e AM |
5134 | { |
5135 | /* We'll be keeping this opd entry. */ | |
5136 | ||
5137 | if (h != NULL) | |
5138 | { | |
754021d0 AM |
5139 | /* Redefine the function descriptor symbol to |
5140 | this location in the opd section. It is | |
5141 | necessary to update the value here rather | |
5142 | than using an array of adjustments as we do | |
5143 | for local symbols, because various places | |
5144 | in the generic ELF code use the value | |
5145 | stored in u.def.value. */ | |
d6fe2dc1 | 5146 | fdh->elf.root.u.def.value = wptr - sec->contents; |
754021d0 | 5147 | fdh->adjust_done = 1; |
1e2f5b6e | 5148 | } |
754021d0 AM |
5149 | |
5150 | /* Local syms are a bit tricky. We could | |
5151 | tweak them as they can be cached, but | |
5152 | we'd need to look through the local syms | |
5153 | for the function descriptor sym which we | |
5154 | don't have at the moment. So keep an | |
5155 | array of adjustments. */ | |
5156 | adjust[rel->r_offset / 24] = wptr - rptr; | |
1e2f5b6e AM |
5157 | |
5158 | if (wptr != rptr) | |
5159 | memcpy (wptr, rptr, 24); | |
5160 | wptr += 24; | |
5161 | } | |
5162 | rptr += 24; | |
5163 | offset += 24; | |
5164 | } | |
5165 | ||
50bc7936 AM |
5166 | if (skip) |
5167 | { | |
5168 | BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info))); | |
5169 | if (info->shared) | |
5170 | { | |
5171 | /* We won't be needing dynamic relocs here. */ | |
5172 | struct ppc_dyn_relocs **pp; | |
5173 | struct ppc_dyn_relocs *p; | |
5174 | ||
5175 | if (h != NULL) | |
5176 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
5177 | else if (sym_sec != NULL) | |
5178 | pp = ((struct ppc_dyn_relocs **) | |
5179 | &elf_section_data (sym_sec)->local_dynrel); | |
5180 | else | |
5181 | pp = ((struct ppc_dyn_relocs **) | |
5182 | &elf_section_data (sec)->local_dynrel); | |
5183 | while ((p = *pp) != NULL) | |
5184 | { | |
5185 | if (p->sec == sec) | |
5186 | { | |
5187 | p->count -= 1; | |
5188 | if (p->count == 0) | |
d37c89e5 | 5189 | *pp = p->next; |
50bc7936 AM |
5190 | break; |
5191 | } | |
5192 | pp = &p->next; | |
5193 | } | |
5194 | } | |
5195 | } | |
5196 | else | |
1e2f5b6e | 5197 | { |
50bc7936 AM |
5198 | /* We need to adjust any reloc offsets to point to the |
5199 | new opd entries. While we're at it, we may as well | |
5200 | remove redundant relocs. */ | |
1e2f5b6e AM |
5201 | rel->r_offset += wptr - rptr; |
5202 | if (write_rel != rel) | |
5203 | memcpy (write_rel, rel, sizeof (*rel)); | |
5204 | ++write_rel; | |
5205 | } | |
5206 | } | |
5207 | ||
5208 | sec->_cooked_size = wptr - sec->contents; | |
5209 | sec->reloc_count = write_rel - relstart; | |
cdcf6e38 AM |
5210 | /* Fudge the size too, as this is used later in |
5211 | elf_bfd_final_link if we are emitting relocs. */ | |
5212 | elf_section_data (sec)->rel_hdr.sh_size | |
5213 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
5214 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
754021d0 | 5215 | some_edited = TRUE; |
1e2f5b6e | 5216 | } |
6cdc0ccc | 5217 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 5218 | free (relstart); |
6cdc0ccc | 5219 | |
411e1bfb AM |
5220 | if (local_syms != NULL |
5221 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5222 | { | |
5223 | if (!info->keep_memory) | |
5224 | free (local_syms); | |
5225 | else | |
5226 | symtab_hdr->contents = (unsigned char *) local_syms; | |
5227 | } | |
5228 | } | |
5229 | ||
754021d0 AM |
5230 | if (some_edited) |
5231 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
5232 | ||
411e1bfb AM |
5233 | return TRUE; |
5234 | } | |
5235 | ||
e1918d23 | 5236 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
411e1bfb | 5237 | |
e1918d23 | 5238 | asection * |
4ce794b7 | 5239 | ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
411e1bfb | 5240 | { |
411e1bfb AM |
5241 | struct ppc_link_hash_table *htab; |
5242 | ||
411e1bfb | 5243 | htab = ppc_hash_table (info); |
a48ebf4d AM |
5244 | if (htab->tls_get_addr != NULL) |
5245 | { | |
5246 | struct elf_link_hash_entry *h = htab->tls_get_addr; | |
5247 | ||
5248 | while (h->root.type == bfd_link_hash_indirect | |
5249 | || h->root.type == bfd_link_hash_warning) | |
5250 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5251 | ||
5252 | htab->tls_get_addr = h; | |
5253 | } | |
5254 | ||
e1918d23 | 5255 | return _bfd_elf_tls_setup (obfd, info); |
951fd09b | 5256 | } |
411e1bfb | 5257 | |
951fd09b AM |
5258 | /* Run through all the TLS relocs looking for optimization |
5259 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
5260 | a preliminary section layout so that we know the TLS segment | |
5261 | offsets. We can't optimize earlier because some optimizations need | |
5262 | to know the tp offset, and we need to optimize before allocating | |
5263 | dynamic relocations. */ | |
5264 | ||
5265 | bfd_boolean | |
4ce794b7 | 5266 | ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
951fd09b AM |
5267 | { |
5268 | bfd *ibfd; | |
5269 | asection *sec; | |
5270 | struct ppc_link_hash_table *htab; | |
5271 | ||
1049f94e | 5272 | if (info->relocatable || info->shared) |
411e1bfb AM |
5273 | return TRUE; |
5274 | ||
951fd09b | 5275 | htab = ppc_hash_table (info); |
411e1bfb AM |
5276 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5277 | { | |
5278 | Elf_Internal_Sym *locsyms = NULL; | |
5279 | ||
5280 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
5281 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5282 | { | |
5283 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5284 | int expecting_tls_get_addr; | |
5285 | ||
5286 | /* Read the relocations. */ | |
4ce794b7 | 5287 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 5288 | info->keep_memory); |
411e1bfb AM |
5289 | if (relstart == NULL) |
5290 | return FALSE; | |
5291 | ||
5292 | expecting_tls_get_addr = 0; | |
5293 | relend = relstart + sec->reloc_count; | |
5294 | for (rel = relstart; rel < relend; rel++) | |
5295 | { | |
5296 | enum elf_ppc64_reloc_type r_type; | |
5297 | unsigned long r_symndx; | |
5298 | struct elf_link_hash_entry *h; | |
5299 | Elf_Internal_Sym *sym; | |
5300 | asection *sym_sec; | |
e7b938ca AM |
5301 | char *tls_mask; |
5302 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 5303 | bfd_vma value; |
951fd09b | 5304 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
5305 | |
5306 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5307 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
5308 | r_symndx, ibfd)) |
5309 | { | |
5310 | err_free_rel: | |
5311 | if (elf_section_data (sec)->relocs != relstart) | |
5312 | free (relstart); | |
5313 | if (locsyms != NULL | |
5314 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5315 | != (unsigned char *) locsyms)) | |
5316 | free (locsyms); | |
5317 | return FALSE; | |
5318 | } | |
5319 | ||
5320 | if (h != NULL) | |
5321 | { | |
5322 | if (h->root.type != bfd_link_hash_defined | |
5323 | && h->root.type != bfd_link_hash_defweak) | |
5324 | continue; | |
5325 | value = h->root.u.def.value; | |
5326 | } | |
5327 | else | |
754021d0 AM |
5328 | { |
5329 | value = sym->st_value; | |
5330 | ||
5331 | if (elf_section_data (sym_sec) != NULL) | |
5332 | { | |
5333 | long *adjust; | |
5334 | adjust = ppc64_elf_section_data (sym_sec)->opd.adjust; | |
5335 | if (adjust != NULL) | |
5336 | value += adjust[value / 24]; | |
5337 | } | |
5338 | } | |
951fd09b | 5339 | |
411e1bfb | 5340 | ok_tprel = FALSE; |
951fd09b AM |
5341 | is_local = FALSE; |
5342 | if (h == NULL | |
5343 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5344 | { |
951fd09b | 5345 | is_local = TRUE; |
411e1bfb AM |
5346 | value += sym_sec->output_offset; |
5347 | value += sym_sec->output_section->vma; | |
e1918d23 | 5348 | value -= htab->elf.tls_sec->vma; |
411e1bfb AM |
5349 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) |
5350 | < (bfd_vma) 1 << 32); | |
5351 | } | |
5352 | ||
4ce794b7 | 5353 | r_type = ELF64_R_TYPE (rel->r_info); |
411e1bfb AM |
5354 | switch (r_type) |
5355 | { | |
5356 | case R_PPC64_GOT_TLSLD16: | |
5357 | case R_PPC64_GOT_TLSLD16_LO: | |
5358 | case R_PPC64_GOT_TLSLD16_HI: | |
5359 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
5360 | /* These relocs should never be against a symbol |
5361 | defined in a shared lib. Leave them alone if | |
5362 | that turns out to be the case. */ | |
e717da7e | 5363 | ppc64_tlsld_got (ibfd)->refcount -= 1; |
951fd09b AM |
5364 | if (!is_local) |
5365 | continue; | |
5366 | ||
951fd09b AM |
5367 | /* LD -> LE */ |
5368 | tls_set = 0; | |
5369 | tls_clear = TLS_LD; | |
e7b938ca | 5370 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5371 | expecting_tls_get_addr = 1; |
5372 | break; | |
5373 | ||
5374 | case R_PPC64_GOT_TLSGD16: | |
5375 | case R_PPC64_GOT_TLSGD16_LO: | |
5376 | case R_PPC64_GOT_TLSGD16_HI: | |
5377 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5378 | if (ok_tprel) |
411e1bfb AM |
5379 | /* GD -> LE */ |
5380 | tls_set = 0; | |
5381 | else | |
5382 | /* GD -> IE */ | |
951fd09b AM |
5383 | tls_set = TLS_TLS | TLS_TPRELGD; |
5384 | tls_clear = TLS_GD; | |
e7b938ca | 5385 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5386 | expecting_tls_get_addr = 1; |
5387 | break; | |
5388 | ||
5389 | case R_PPC64_GOT_TPREL16_DS: | |
5390 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5391 | case R_PPC64_GOT_TPREL16_HI: | |
5392 | case R_PPC64_GOT_TPREL16_HA: | |
5393 | expecting_tls_get_addr = 0; | |
5394 | if (ok_tprel) | |
5395 | { | |
5396 | /* IE -> LE */ | |
5397 | tls_set = 0; | |
5398 | tls_clear = TLS_TPREL; | |
e7b938ca | 5399 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
5400 | break; |
5401 | } | |
5402 | else | |
5403 | continue; | |
5404 | ||
5405 | case R_PPC64_REL14: | |
5406 | case R_PPC64_REL14_BRTAKEN: | |
5407 | case R_PPC64_REL14_BRNTAKEN: | |
5408 | case R_PPC64_REL24: | |
5409 | if (h != NULL | |
5410 | && h == htab->tls_get_addr) | |
5411 | { | |
5412 | if (!expecting_tls_get_addr | |
5413 | && rel != relstart | |
5414 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
5415 | == R_PPC64_TOC16) | |
5416 | || (ELF64_R_TYPE (rel[-1].r_info) | |
5417 | == R_PPC64_TOC16_LO))) | |
5418 | { | |
5419 | /* Check for toc tls entries. */ | |
5420 | char *toc_tls; | |
951fd09b | 5421 | int retval; |
411e1bfb | 5422 | |
0d4792f7 | 5423 | retval = get_tls_mask (&toc_tls, NULL, &locsyms, |
951fd09b AM |
5424 | rel - 1, ibfd); |
5425 | if (retval == 0) | |
411e1bfb AM |
5426 | goto err_free_rel; |
5427 | if (toc_tls != NULL) | |
951fd09b | 5428 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
5429 | } |
5430 | ||
5431 | if (expecting_tls_get_addr) | |
5432 | { | |
5433 | struct plt_entry *ent; | |
5434 | for (ent = h->plt.plist; ent; ent = ent->next) | |
5435 | if (ent->addend == 0) | |
5436 | { | |
5437 | if (ent->plt.refcount > 0) | |
5438 | ent->plt.refcount -= 1; | |
5439 | break; | |
5440 | } | |
5441 | } | |
5442 | } | |
5443 | expecting_tls_get_addr = 0; | |
5444 | continue; | |
5445 | ||
5446 | case R_PPC64_TPREL64: | |
5447 | expecting_tls_get_addr = 0; | |
5448 | if (ok_tprel) | |
5449 | { | |
5450 | /* IE -> LE */ | |
5451 | tls_set = TLS_EXPLICIT; | |
5452 | tls_clear = TLS_TPREL; | |
5453 | break; | |
5454 | } | |
5455 | else | |
5456 | continue; | |
5457 | ||
5458 | case R_PPC64_DTPMOD64: | |
5459 | expecting_tls_get_addr = 0; | |
951fd09b AM |
5460 | if (rel + 1 < relend |
5461 | && (rel[1].r_info | |
5462 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
5463 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 5464 | { |
951fd09b | 5465 | if (ok_tprel) |
411e1bfb | 5466 | /* GD -> LE */ |
951fd09b | 5467 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
5468 | else |
5469 | /* GD -> IE */ | |
951fd09b AM |
5470 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
5471 | tls_clear = TLS_GD; | |
411e1bfb AM |
5472 | } |
5473 | else | |
5474 | { | |
951fd09b AM |
5475 | if (!is_local) |
5476 | continue; | |
5477 | ||
5478 | /* LD -> LE */ | |
5479 | tls_set = TLS_EXPLICIT; | |
5480 | tls_clear = TLS_LD; | |
411e1bfb AM |
5481 | } |
5482 | break; | |
5483 | ||
5484 | default: | |
5485 | expecting_tls_get_addr = 0; | |
5486 | continue; | |
5487 | } | |
5488 | ||
5489 | if ((tls_set & TLS_EXPLICIT) == 0) | |
5490 | { | |
5491 | struct got_entry *ent; | |
5492 | ||
5493 | /* Adjust got entry for this reloc. */ | |
5494 | if (h != NULL) | |
5495 | ent = h->got.glist; | |
5496 | else | |
5497 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
5498 | ||
5499 | for (; ent != NULL; ent = ent->next) | |
5500 | if (ent->addend == rel->r_addend | |
e717da7e | 5501 | && ent->owner == ibfd |
e7b938ca | 5502 | && ent->tls_type == tls_type) |
411e1bfb AM |
5503 | break; |
5504 | if (ent == NULL) | |
5505 | abort (); | |
5506 | ||
5507 | if (tls_set == 0) | |
5508 | { | |
5509 | /* We managed to get rid of a got entry. */ | |
5510 | if (ent->got.refcount > 0) | |
5511 | ent->got.refcount -= 1; | |
5512 | } | |
411e1bfb AM |
5513 | } |
5514 | else if (h != NULL) | |
5515 | { | |
5516 | struct ppc_link_hash_entry * eh; | |
5517 | struct ppc_dyn_relocs **pp; | |
5518 | struct ppc_dyn_relocs *p; | |
5519 | ||
5520 | /* Adjust dynamic relocs. */ | |
5521 | eh = (struct ppc_link_hash_entry *) h; | |
5522 | for (pp = &eh->dyn_relocs; | |
5523 | (p = *pp) != NULL; | |
5524 | pp = &p->next) | |
5525 | if (p->sec == sec) | |
5526 | { | |
5527 | /* If we got rid of a DTPMOD/DTPREL reloc | |
5528 | pair then we'll lose one or two dyn | |
5529 | relocs. */ | |
951fd09b | 5530 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 5531 | p->count -= 1; |
951fd09b | 5532 | p->count -= 1; |
411e1bfb AM |
5533 | if (p->count == 0) |
5534 | *pp = p->next; | |
5535 | break; | |
5536 | } | |
5537 | } | |
5538 | ||
e7b938ca AM |
5539 | *tls_mask |= tls_set; |
5540 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
5541 | } |
5542 | ||
5543 | if (elf_section_data (sec)->relocs != relstart) | |
5544 | free (relstart); | |
5545 | } | |
5546 | ||
5547 | if (locsyms != NULL | |
5548 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5549 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
5550 | { |
5551 | if (!info->keep_memory) | |
411e1bfb | 5552 | free (locsyms); |
6cdc0ccc | 5553 | else |
411e1bfb | 5554 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 5555 | } |
1e2f5b6e | 5556 | } |
b34976b6 | 5557 | return TRUE; |
1e2f5b6e | 5558 | } |
b34976b6 | 5559 | |
65f38f15 AM |
5560 | /* This is the condition under which ppc64_elf_finish_dynamic_symbol |
5561 | will be called from elflink.h. If elflink.h doesn't call our | |
5562 | finish_dynamic_symbol routine, we'll need to do something about | |
5563 | initializing any .plt and .got entries in ppc64_elf_relocate_section. */ | |
f4656909 | 5564 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
65f38f15 | 5565 | ((DYN) \ |
f4656909 | 5566 | && ((SHARED) \ |
65f38f15 AM |
5567 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
5568 | && ((H)->dynindx != -1 \ | |
5569 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
5bd4f169 | 5570 | |
65f38f15 AM |
5571 | /* Allocate space in .plt, .got and associated reloc sections for |
5572 | dynamic relocs. */ | |
5bd4f169 | 5573 | |
b34976b6 | 5574 | static bfd_boolean |
4ce794b7 | 5575 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 5576 | { |
65f38f15 AM |
5577 | struct bfd_link_info *info; |
5578 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 5579 | asection *s; |
65f38f15 AM |
5580 | struct ppc_link_hash_entry *eh; |
5581 | struct ppc_dyn_relocs *p; | |
411e1bfb | 5582 | struct got_entry *gent; |
5bd4f169 | 5583 | |
e92d460e | 5584 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5585 | return TRUE; |
5bd4f169 | 5586 | |
e92d460e AM |
5587 | if (h->root.type == bfd_link_hash_warning) |
5588 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5589 | ||
65f38f15 AM |
5590 | info = (struct bfd_link_info *) inf; |
5591 | htab = ppc_hash_table (info); | |
5bd4f169 | 5592 | |
65f38f15 | 5593 | if (htab->elf.dynamic_sections_created |
411e1bfb | 5594 | && h->dynindx != -1 |
9c7a29a3 | 5595 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 5596 | { |
411e1bfb AM |
5597 | struct plt_entry *pent; |
5598 | bfd_boolean doneone = FALSE; | |
5599 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
5600 | if (pent->plt.refcount > 0) | |
5601 | { | |
5602 | BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor); | |
5603 | ||
5604 | /* If this is the first .plt entry, make room for the special | |
5605 | first entry. */ | |
4ce794b7 | 5606 | s = htab->plt; |
411e1bfb AM |
5607 | if (s->_raw_size == 0) |
5608 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
5609 | ||
5610 | pent->plt.offset = s->_raw_size; | |
5611 | ||
5612 | /* Make room for this entry. */ | |
5613 | s->_raw_size += PLT_ENTRY_SIZE; | |
5614 | ||
5615 | /* Make room for the .glink code. */ | |
4ce794b7 | 5616 | s = htab->glink; |
411e1bfb AM |
5617 | if (s->_raw_size == 0) |
5618 | s->_raw_size += GLINK_CALL_STUB_SIZE; | |
5619 | /* We need bigger stubs past index 32767. */ | |
5620 | if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
5621 | s->_raw_size += 4; | |
5622 | s->_raw_size += 2*4; | |
5623 | ||
5624 | /* We also need to make an entry in the .rela.plt section. */ | |
4ce794b7 | 5625 | s = htab->relplt; |
411e1bfb AM |
5626 | s->_raw_size += sizeof (Elf64_External_Rela); |
5627 | doneone = TRUE; | |
5628 | } | |
5629 | else | |
5630 | pent->plt.offset = (bfd_vma) -1; | |
5631 | if (!doneone) | |
65f38f15 | 5632 | { |
411e1bfb | 5633 | h->plt.plist = NULL; |
65f38f15 AM |
5634 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5635 | } | |
5636 | } | |
5637 | else | |
5638 | { | |
411e1bfb | 5639 | h->plt.plist = NULL; |
65f38f15 AM |
5640 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5641 | } | |
5642 | ||
951fd09b AM |
5643 | eh = (struct ppc_link_hash_entry *) h; |
5644 | /* Run through the TLS GD got entries first if we're changing them | |
5645 | to TPREL. */ | |
e7b938ca | 5646 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
5647 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5648 | if (gent->got.refcount > 0 | |
5649 | && (gent->tls_type & TLS_GD) != 0) | |
5650 | { | |
5651 | /* This was a GD entry that has been converted to TPREL. If | |
5652 | there happens to be a TPREL entry we can use that one. */ | |
5653 | struct got_entry *ent; | |
5654 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
5655 | if (ent->got.refcount > 0 | |
5656 | && (ent->tls_type & TLS_TPREL) != 0 | |
e717da7e AM |
5657 | && ent->addend == gent->addend |
5658 | && ent->owner == gent->owner) | |
951fd09b AM |
5659 | { |
5660 | gent->got.refcount = 0; | |
5661 | break; | |
5662 | } | |
5663 | ||
5664 | /* If not, then we'll be using our own TPREL entry. */ | |
5665 | if (gent->got.refcount != 0) | |
5666 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
5667 | } | |
5668 | ||
411e1bfb AM |
5669 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5670 | if (gent->got.refcount > 0) | |
5671 | { | |
951fd09b AM |
5672 | bfd_boolean dyn; |
5673 | ||
411e1bfb | 5674 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
5675 | Undefined weak syms won't yet be marked as dynamic, |
5676 | nor will all TLS symbols. */ | |
411e1bfb AM |
5677 | if (h->dynindx == -1 |
5678 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5679 | { | |
5680 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
5681 | return FALSE; | |
5682 | } | |
65f38f15 | 5683 | |
d881513a AM |
5684 | if ((gent->tls_type & TLS_LD) != 0 |
5685 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5686 | { |
e717da7e | 5687 | gent->got.offset = ppc64_tlsld_got (gent->owner)->offset; |
951fd09b | 5688 | continue; |
411e1bfb | 5689 | } |
951fd09b | 5690 | |
e717da7e | 5691 | s = ppc64_elf_tdata (gent->owner)->got; |
951fd09b | 5692 | gent->got.offset = s->_raw_size; |
d881513a AM |
5693 | s->_raw_size |
5694 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; | |
951fd09b | 5695 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
5696 | if ((info->shared |
5697 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
5698 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5699 | || h->root.type != bfd_link_hash_undefweak)) | |
e717da7e | 5700 | ppc64_elf_tdata (gent->owner)->relgot->_raw_size |
e7b938ca | 5701 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
5702 | ? 2 * sizeof (Elf64_External_Rela) |
5703 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
5704 | } |
5705 | else | |
5706 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 5707 | |
65f38f15 | 5708 | if (eh->dyn_relocs == NULL) |
b34976b6 | 5709 | return TRUE; |
65f38f15 AM |
5710 | |
5711 | /* In the shared -Bsymbolic case, discard space allocated for | |
5712 | dynamic pc-relative relocs against symbols which turn out to be | |
5713 | defined in regular objects. For the normal shared case, discard | |
5714 | space for relocs that have become local due to symbol visibility | |
5715 | changes. */ | |
5716 | ||
5717 | if (info->shared) | |
5718 | { | |
9c7a29a3 AM |
5719 | /* Relocs that use pc_count are those that appear on a call insn, |
5720 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
5721 | generated via assembly. We want calls to protected symbols to | |
5722 | resolve directly to the function rather than going via the plt. | |
5723 | If people want function pointer comparisons to work as expected | |
5724 | then they should avoid writing weird assembly. */ | |
09695f56 | 5725 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
5726 | { |
5727 | struct ppc_dyn_relocs **pp; | |
5728 | ||
5729 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 5730 | { |
65f38f15 AM |
5731 | p->count -= p->pc_count; |
5732 | p->pc_count = 0; | |
5733 | if (p->count == 0) | |
5734 | *pp = p->next; | |
5735 | else | |
5736 | pp = &p->next; | |
5bd4f169 | 5737 | } |
65f38f15 | 5738 | } |
4e795f50 AM |
5739 | |
5740 | /* Also discard relocs on undefined weak syms with non-default | |
5741 | visibility. */ | |
5742 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5743 | && h->root.type == bfd_link_hash_undefweak) | |
5744 | eh->dyn_relocs = NULL; | |
65f38f15 | 5745 | } |
f4656909 | 5746 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
5747 | { |
5748 | /* For the non-shared case, discard space for relocs against | |
5749 | symbols which turn out to need copy relocs or are not | |
5750 | dynamic. */ | |
5751 | ||
5752 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
5753 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
5754 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
65f38f15 AM |
5755 | { |
5756 | /* Make sure this symbol is output as a dynamic symbol. | |
5757 | Undefined weak syms won't yet be marked as dynamic. */ | |
5758 | if (h->dynindx == -1 | |
5759 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5760 | { | |
ec338859 | 5761 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) |
b34976b6 | 5762 | return FALSE; |
65f38f15 AM |
5763 | } |
5764 | ||
5765 | /* If that succeeded, we know we'll be keeping all the | |
5766 | relocs. */ | |
5767 | if (h->dynindx != -1) | |
5768 | goto keep; | |
5769 | } | |
5770 | ||
5771 | eh->dyn_relocs = NULL; | |
5772 | ||
ec338859 | 5773 | keep: ; |
65f38f15 AM |
5774 | } |
5775 | ||
5776 | /* Finally, allocate space. */ | |
5777 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5778 | { | |
5779 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5780 | sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
5781 | } | |
5782 | ||
b34976b6 | 5783 | return TRUE; |
65f38f15 AM |
5784 | } |
5785 | ||
5786 | /* Find any dynamic relocs that apply to read-only sections. */ | |
5787 | ||
b34976b6 | 5788 | static bfd_boolean |
4ce794b7 | 5789 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
65f38f15 AM |
5790 | { |
5791 | struct ppc_link_hash_entry *eh; | |
5792 | struct ppc_dyn_relocs *p; | |
5793 | ||
e92d460e AM |
5794 | if (h->root.type == bfd_link_hash_warning) |
5795 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5796 | ||
65f38f15 AM |
5797 | eh = (struct ppc_link_hash_entry *) h; |
5798 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5799 | { | |
5800 | asection *s = p->sec->output_section; | |
5801 | ||
5802 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5803 | { | |
4ce794b7 | 5804 | struct bfd_link_info *info = inf; |
65f38f15 AM |
5805 | |
5806 | info->flags |= DF_TEXTREL; | |
5807 | ||
5808 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 5809 | return FALSE; |
65f38f15 AM |
5810 | } |
5811 | } | |
b34976b6 | 5812 | return TRUE; |
65f38f15 AM |
5813 | } |
5814 | ||
5815 | /* Set the sizes of the dynamic sections. */ | |
5816 | ||
b34976b6 | 5817 | static bfd_boolean |
4ce794b7 AM |
5818 | ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
5819 | struct bfd_link_info *info) | |
65f38f15 AM |
5820 | { |
5821 | struct ppc_link_hash_table *htab; | |
5822 | bfd *dynobj; | |
5823 | asection *s; | |
b34976b6 | 5824 | bfd_boolean relocs; |
65f38f15 AM |
5825 | bfd *ibfd; |
5826 | ||
5827 | htab = ppc_hash_table (info); | |
5828 | dynobj = htab->elf.dynobj; | |
5829 | if (dynobj == NULL) | |
5830 | abort (); | |
5831 | ||
5832 | if (htab->elf.dynamic_sections_created) | |
5833 | { | |
5834 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 5835 | if (info->executable) |
65f38f15 AM |
5836 | { |
5837 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5838 | if (s == NULL) | |
5839 | abort (); | |
5840 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5841 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5842 | } | |
5843 | } | |
5844 | ||
5845 | /* Set up .got offsets for local syms, and space for local dynamic | |
5846 | relocs. */ | |
5847 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5848 | { | |
411e1bfb AM |
5849 | struct got_entry **lgot_ents; |
5850 | struct got_entry **end_lgot_ents; | |
e7b938ca | 5851 | char *lgot_masks; |
65f38f15 AM |
5852 | bfd_size_type locsymcount; |
5853 | Elf_Internal_Shdr *symtab_hdr; | |
5854 | asection *srel; | |
5855 | ||
5856 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5857 | continue; | |
5858 | ||
e717da7e AM |
5859 | if (ppc64_tlsld_got (ibfd)->refcount > 0) |
5860 | { | |
5861 | s = ppc64_elf_tdata (ibfd)->got; | |
5862 | ppc64_tlsld_got (ibfd)->offset = s->_raw_size; | |
5863 | s->_raw_size += 16; | |
5864 | if (info->shared) | |
5865 | { | |
5866 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
5867 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5868 | } | |
5869 | } | |
5870 | else | |
5871 | ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1; | |
5872 | ||
65f38f15 AM |
5873 | for (s = ibfd->sections; s != NULL; s = s->next) |
5874 | { | |
ec338859 | 5875 | struct ppc_dyn_relocs *p; |
65f38f15 | 5876 | |
ec338859 AM |
5877 | for (p = *((struct ppc_dyn_relocs **) |
5878 | &elf_section_data (s)->local_dynrel); | |
5879 | p != NULL; | |
5880 | p = p->next) | |
65f38f15 | 5881 | { |
ec338859 AM |
5882 | if (!bfd_is_abs_section (p->sec) |
5883 | && bfd_is_abs_section (p->sec->output_section)) | |
5884 | { | |
5885 | /* Input section has been discarded, either because | |
5886 | it is a copy of a linkonce section or due to | |
5887 | linker script /DISCARD/, so we'll be discarding | |
5888 | the relocs too. */ | |
5889 | } | |
248866a8 | 5890 | else if (p->count != 0) |
ec338859 AM |
5891 | { |
5892 | srel = elf_section_data (p->sec)->sreloc; | |
5893 | srel->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
248866a8 AM |
5894 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
5895 | info->flags |= DF_TEXTREL; | |
ec338859 | 5896 | } |
65f38f15 AM |
5897 | } |
5898 | } | |
5899 | ||
411e1bfb AM |
5900 | lgot_ents = elf_local_got_ents (ibfd); |
5901 | if (!lgot_ents) | |
65f38f15 AM |
5902 | continue; |
5903 | ||
5904 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5905 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 5906 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 5907 | lgot_masks = (char *) end_lgot_ents; |
e717da7e AM |
5908 | s = ppc64_elf_tdata (ibfd)->got; |
5909 | srel = ppc64_elf_tdata (ibfd)->relgot; | |
e7b938ca | 5910 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 5911 | { |
411e1bfb AM |
5912 | struct got_entry *ent; |
5913 | ||
5914 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
5915 | if (ent->got.refcount > 0) | |
5916 | { | |
e7b938ca | 5917 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb | 5918 | { |
e717da7e | 5919 | if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1) |
411e1bfb | 5920 | { |
e717da7e | 5921 | ppc64_tlsld_got (ibfd)->offset = s->_raw_size; |
411e1bfb AM |
5922 | s->_raw_size += 16; |
5923 | if (info->shared) | |
5924 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5925 | } | |
e717da7e | 5926 | ent->got.offset = ppc64_tlsld_got (ibfd)->offset; |
411e1bfb AM |
5927 | } |
5928 | else | |
5929 | { | |
5930 | ent->got.offset = s->_raw_size; | |
e7b938ca | 5931 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb AM |
5932 | { |
5933 | s->_raw_size += 16; | |
5934 | if (info->shared) | |
5935 | srel->_raw_size += 2 * sizeof (Elf64_External_Rela); | |
5936 | } | |
5937 | else | |
5938 | { | |
5939 | s->_raw_size += 8; | |
5940 | if (info->shared) | |
5941 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5942 | } | |
5943 | } | |
5944 | } | |
5945 | else | |
5946 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
5947 | } |
5948 | } | |
5949 | ||
5950 | /* Allocate global sym .plt and .got entries, and space for global | |
5951 | sym dynamic relocs. */ | |
4ce794b7 | 5952 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
65f38f15 AM |
5953 | |
5954 | /* We now have determined the sizes of the various dynamic sections. | |
5955 | Allocate memory for them. */ | |
b34976b6 | 5956 | relocs = FALSE; |
65f38f15 AM |
5957 | for (s = dynobj->sections; s != NULL; s = s->next) |
5958 | { | |
5959 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5960 | continue; | |
5961 | ||
411e1bfb AM |
5962 | /* Reset _cooked_size since prelim layout will set it wrongly, |
5963 | and a non-zero _cooked_size sticks. */ | |
5964 | s->_cooked_size = 0; | |
5965 | ||
4ce794b7 | 5966 | if (s == htab->brlt || s == htab->relbrlt) |
721956f4 AM |
5967 | /* These haven't been allocated yet; don't strip. */ |
5968 | continue; | |
e717da7e AM |
5969 | else if (s == htab->got |
5970 | || s == htab->plt | |
4ce794b7 | 5971 | || s == htab->glink) |
65f38f15 AM |
5972 | { |
5973 | /* Strip this section if we don't need it; see the | |
5974 | comment below. */ | |
5bd4f169 | 5975 | } |
65f38f15 | 5976 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 AM |
5977 | { |
5978 | if (s->_raw_size == 0) | |
5979 | { | |
5980 | /* If we don't need this section, strip it from the | |
5981 | output file. This is mostly to handle .rela.bss and | |
5982 | .rela.plt. We must create both sections in | |
5983 | create_dynamic_sections, because they must be created | |
5984 | before the linker maps input sections to output | |
5985 | sections. The linker does that before | |
5986 | adjust_dynamic_symbol is called, and it is that | |
5987 | function which decides whether anything needs to go | |
5988 | into these sections. */ | |
5bd4f169 AM |
5989 | } |
5990 | else | |
5991 | { | |
4ce794b7 | 5992 | if (s != htab->relplt) |
b34976b6 | 5993 | relocs = TRUE; |
5bd4f169 AM |
5994 | |
5995 | /* We use the reloc_count field as a counter if we need | |
5996 | to copy relocs into the output file. */ | |
5997 | s->reloc_count = 0; | |
5998 | } | |
5999 | } | |
65f38f15 | 6000 | else |
5bd4f169 AM |
6001 | { |
6002 | /* It's not one of our sections, so don't allocate space. */ | |
6003 | continue; | |
6004 | } | |
6005 | ||
65f38f15 | 6006 | if (s->_raw_size == 0) |
5bd4f169 AM |
6007 | { |
6008 | _bfd_strip_section_from_output (info, s); | |
6009 | continue; | |
6010 | } | |
6011 | ||
5f333394 | 6012 | /* .plt is in the bss section. We don't initialise it. */ |
680a3378 | 6013 | if (s == htab->plt) |
5f333394 AM |
6014 | continue; |
6015 | ||
65f38f15 AM |
6016 | /* Allocate memory for the section contents. We use bfd_zalloc |
6017 | here in case unused entries are not reclaimed before the | |
6018 | section's contents are written out. This should not happen, | |
411e1bfb AM |
6019 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
6020 | sections instead of garbage. | |
6021 | We also rely on the section contents being zero when writing | |
6022 | the GOT. */ | |
4ce794b7 | 6023 | s->contents = bfd_zalloc (dynobj, s->_raw_size); |
65f38f15 | 6024 | if (s->contents == NULL) |
b34976b6 | 6025 | return FALSE; |
5bd4f169 AM |
6026 | } |
6027 | ||
e717da7e AM |
6028 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
6029 | { | |
6030 | s = ppc64_elf_tdata (ibfd)->got; | |
6031 | if (s != NULL && s != htab->got) | |
6032 | { | |
6033 | s->_cooked_size = 0; | |
6034 | if (s->_raw_size == 0) | |
6035 | _bfd_strip_section_from_output (info, s); | |
6036 | else | |
6037 | { | |
6038 | s->contents = bfd_zalloc (ibfd, s->_raw_size); | |
6039 | if (s->contents == NULL) | |
6040 | return FALSE; | |
6041 | } | |
6042 | } | |
6043 | s = ppc64_elf_tdata (ibfd)->relgot; | |
6044 | if (s != NULL) | |
6045 | { | |
6046 | s->_cooked_size = 0; | |
6047 | if (s->_raw_size == 0) | |
6048 | _bfd_strip_section_from_output (info, s); | |
6049 | else | |
6050 | { | |
6051 | s->contents = bfd_zalloc (ibfd, s->_raw_size); | |
6052 | if (s->contents == NULL) | |
6053 | return FALSE; | |
6054 | relocs = TRUE; | |
6055 | s->reloc_count = 0; | |
6056 | } | |
6057 | } | |
6058 | } | |
6059 | ||
e86ce104 | 6060 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
6061 | { |
6062 | /* Add some entries to the .dynamic section. We fill in the | |
6063 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
6064 | must add the entries now so that we get the correct size for | |
6065 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6066 | dynamic linker and used by the debugger. */ | |
dc810e39 | 6067 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 6068 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 6069 | |
36af4a4e | 6070 | if (info->executable) |
5bd4f169 | 6071 | { |
dc810e39 | 6072 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 6073 | return FALSE; |
5bd4f169 AM |
6074 | } |
6075 | ||
4ce794b7 | 6076 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5bd4f169 | 6077 | { |
dc810e39 AM |
6078 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6079 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6080 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
6081 | || !add_dynamic_entry (DT_JMPREL, 0) |
6082 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 6083 | return FALSE; |
5bd4f169 AM |
6084 | } |
6085 | ||
19397422 AM |
6086 | if (NO_OPD_RELOCS) |
6087 | { | |
6088 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
6089 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 6090 | return FALSE; |
19397422 AM |
6091 | } |
6092 | ||
5bd4f169 AM |
6093 | if (relocs) |
6094 | { | |
dc810e39 AM |
6095 | if (!add_dynamic_entry (DT_RELA, 0) |
6096 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6097 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 6098 | return FALSE; |
5bd4f169 | 6099 | |
65f38f15 AM |
6100 | /* If any dynamic relocs apply to a read-only section, |
6101 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 6102 | if ((info->flags & DF_TEXTREL) == 0) |
4ce794b7 | 6103 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
5bd4f169 | 6104 | |
65f38f15 | 6105 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 6106 | { |
65f38f15 | 6107 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 6108 | return FALSE; |
5bd4f169 | 6109 | } |
5bd4f169 | 6110 | } |
5bd4f169 | 6111 | } |
65f38f15 | 6112 | #undef add_dynamic_entry |
5bd4f169 | 6113 | |
b34976b6 | 6114 | return TRUE; |
5bd4f169 AM |
6115 | } |
6116 | ||
721956f4 | 6117 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 6118 | |
4ce794b7 AM |
6119 | static inline enum ppc_stub_type |
6120 | ppc_type_of_stub (asection *input_sec, | |
6121 | const Elf_Internal_Rela *rel, | |
6122 | struct ppc_link_hash_entry **hash, | |
6123 | bfd_vma destination) | |
5bd4f169 | 6124 | { |
721956f4 AM |
6125 | struct ppc_link_hash_entry *h = *hash; |
6126 | bfd_vma location; | |
6127 | bfd_vma branch_offset; | |
6128 | bfd_vma max_branch_offset; | |
4ce794b7 | 6129 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 | 6130 | |
721956f4 AM |
6131 | if (h != NULL) |
6132 | { | |
6133 | if (h->oh != NULL | |
721956f4 | 6134 | && h->oh->dynindx != -1) |
5bd4f169 | 6135 | { |
411e1bfb AM |
6136 | struct plt_entry *ent; |
6137 | for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next) | |
6138 | if (ent->addend == rel->r_addend | |
6139 | && ent->plt.offset != (bfd_vma) -1) | |
6140 | { | |
6141 | *hash = (struct ppc_link_hash_entry *) h->oh; | |
6142 | return ppc_stub_plt_call; | |
6143 | } | |
5bd4f169 AM |
6144 | } |
6145 | ||
ee7de3e6 AM |
6146 | if (!(h->elf.root.type == bfd_link_hash_defined |
6147 | || h->elf.root.type == bfd_link_hash_defweak) | |
6148 | || h->elf.root.u.def.section->output_section == NULL) | |
721956f4 | 6149 | return ppc_stub_none; |
5d1634d7 | 6150 | } |
5d1634d7 | 6151 | |
721956f4 AM |
6152 | /* Determine where the call point is. */ |
6153 | location = (input_sec->output_offset | |
6154 | + input_sec->output_section->vma | |
6155 | + rel->r_offset); | |
5d1634d7 | 6156 | |
721956f4 AM |
6157 | branch_offset = destination - location; |
6158 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 6159 | |
721956f4 AM |
6160 | /* Determine if a long branch stub is needed. */ |
6161 | max_branch_offset = 1 << 25; | |
4ce794b7 | 6162 | if (r_type != R_PPC64_REL24) |
721956f4 | 6163 | max_branch_offset = 1 << 15; |
5d1634d7 | 6164 | |
721956f4 AM |
6165 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
6166 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
6167 | is needed later. */ | |
6168 | return ppc_stub_long_branch; | |
5d1634d7 | 6169 | |
721956f4 | 6170 | return ppc_stub_none; |
5d1634d7 AM |
6171 | } |
6172 | ||
6173 | /* Build a .plt call stub. */ | |
6174 | ||
4ce794b7 AM |
6175 | static inline bfd_byte * |
6176 | build_plt_stub (bfd *obfd, bfd_byte *p, int offset) | |
5d1634d7 AM |
6177 | { |
6178 | #define PPC_LO(v) ((v) & 0xffff) | |
6179 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
6180 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
6181 | ||
5d1634d7 | 6182 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 6183 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
6184 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
6185 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6186 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6187 | offset += 8; |
6188 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
6189 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6190 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6191 | offset += 8; |
6192 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
6193 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
6194 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
6195 | return p; | |
6196 | } | |
6197 | ||
b34976b6 | 6198 | static bfd_boolean |
4ce794b7 | 6199 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
5d1634d7 | 6200 | { |
721956f4 AM |
6201 | struct ppc_stub_hash_entry *stub_entry; |
6202 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
6203 | struct bfd_link_info *info; |
6204 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
6205 | bfd_byte *loc; |
6206 | bfd_byte *p; | |
6207 | unsigned int indx; | |
411e1bfb | 6208 | struct plt_entry *ent; |
721956f4 AM |
6209 | bfd_vma off; |
6210 | int size; | |
5d1634d7 | 6211 | |
721956f4 AM |
6212 | /* Massage our args to the form they really have. */ |
6213 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 6214 | info = in_arg; |
5d1634d7 | 6215 | |
5d1634d7 AM |
6216 | htab = ppc_hash_table (info); |
6217 | ||
721956f4 | 6218 | /* Make a note of the offset within the stubs for this entry. */ |
97b639ba AM |
6219 | stub_entry->stub_offset = stub_entry->stub_sec->_cooked_size; |
6220 | loc = stub_entry->stub_sec->contents + stub_entry->stub_offset; | |
721956f4 | 6221 | |
4ce794b7 | 6222 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
721956f4 | 6223 | switch (stub_entry->stub_type) |
5d1634d7 | 6224 | { |
721956f4 | 6225 | case ppc_stub_long_branch: |
ad8e1ba5 | 6226 | case ppc_stub_long_branch_r2off: |
721956f4 AM |
6227 | /* Branches are relative. This is where we are going to. */ |
6228 | off = (stub_entry->target_value | |
6229 | + stub_entry->target_section->output_offset | |
6230 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 6231 | |
721956f4 AM |
6232 | /* And this is where we are coming from. */ |
6233 | off -= (stub_entry->stub_offset | |
97b639ba AM |
6234 | + stub_entry->stub_sec->output_offset |
6235 | + stub_entry->stub_sec->output_section->vma); | |
e86ce104 | 6236 | |
ad8e1ba5 AM |
6237 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
6238 | size = 4; | |
6239 | else | |
6240 | { | |
6241 | bfd_vma r2off; | |
6242 | ||
6243 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6244 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 6245 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6246 | loc += 4; |
97b639ba | 6247 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6248 | loc += 4; |
97b639ba | 6249 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6250 | loc += 4; |
6251 | off -= 12; | |
6252 | size = 16; | |
6253 | } | |
97b639ba | 6254 | bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 AM |
6255 | |
6256 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); | |
721956f4 | 6257 | break; |
e86ce104 | 6258 | |
721956f4 | 6259 | case ppc_stub_plt_branch: |
ad8e1ba5 | 6260 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
6261 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
6262 | stub_entry->root.string + 9, | |
b34976b6 | 6263 | FALSE, FALSE); |
721956f4 AM |
6264 | if (br_entry == NULL) |
6265 | { | |
6266 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
6267 | stub_entry->root.string + 9); | |
b34976b6 AM |
6268 | htab->stub_error = TRUE; |
6269 | return FALSE; | |
721956f4 AM |
6270 | } |
6271 | ||
6272 | off = (stub_entry->target_value | |
6273 | + stub_entry->target_section->output_offset | |
6274 | + stub_entry->target_section->output_section->vma); | |
6275 | ||
4ce794b7 AM |
6276 | bfd_put_64 (htab->brlt->owner, off, |
6277 | htab->brlt->contents + br_entry->offset); | |
721956f4 AM |
6278 | |
6279 | if (info->shared) | |
6280 | { | |
6281 | /* Create a reloc for the branch lookup table entry. */ | |
6282 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 6283 | bfd_byte *rl; |
5d1634d7 | 6284 | |
721956f4 | 6285 | rela.r_offset = (br_entry->offset |
4ce794b7 AM |
6286 | + htab->brlt->output_offset |
6287 | + htab->brlt->output_section->vma); | |
721956f4 AM |
6288 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
6289 | rela.r_addend = off; | |
6290 | ||
4ce794b7 AM |
6291 | rl = htab->relbrlt->contents; |
6292 | rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
6293 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
721956f4 AM |
6294 | } |
6295 | ||
6296 | off = (br_entry->offset | |
4ce794b7 AM |
6297 | + htab->brlt->output_offset |
6298 | + htab->brlt->output_section->vma | |
6299 | - elf_gp (htab->brlt->output_section->owner) | |
ad8e1ba5 | 6300 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6301 | |
ad8e1ba5 | 6302 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
6303 | { |
6304 | (*_bfd_error_handler) | |
e86ce104 | 6305 | (_("linkage table error against `%s'"), |
721956f4 | 6306 | stub_entry->root.string); |
5d1634d7 | 6307 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
6308 | htab->stub_error = TRUE; |
6309 | return FALSE; | |
5d1634d7 | 6310 | } |
41bd81ab | 6311 | |
721956f4 | 6312 | indx = off; |
ad8e1ba5 AM |
6313 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
6314 | { | |
97b639ba | 6315 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6316 | loc += 4; |
97b639ba | 6317 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 AM |
6318 | size = 16; |
6319 | } | |
6320 | else | |
6321 | { | |
6322 | bfd_vma r2off; | |
6323 | ||
6324 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6325 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
97b639ba | 6326 | bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6327 | loc += 4; |
97b639ba | 6328 | bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6329 | loc += 4; |
97b639ba | 6330 | bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 | 6331 | loc += 4; |
97b639ba | 6332 | bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6333 | loc += 4; |
97b639ba | 6334 | bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6335 | size = 28; |
6336 | } | |
6337 | loc += 4; | |
97b639ba | 6338 | bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc); |
ad8e1ba5 | 6339 | loc += 4; |
97b639ba | 6340 | bfd_put_32 (htab->stub_bfd, BCTR, loc); |
721956f4 | 6341 | break; |
5d1634d7 | 6342 | |
721956f4 | 6343 | case ppc_stub_plt_call: |
c862ae31 AM |
6344 | /* Do the best we can for shared libraries built without |
6345 | exporting ".foo" for each "foo". This can happen when symbol | |
6346 | versioning scripts strip all bar a subset of symbols. */ | |
6347 | if (stub_entry->h->oh->root.type != bfd_link_hash_defined | |
6348 | && stub_entry->h->oh->root.type != bfd_link_hash_defweak) | |
6349 | { | |
6350 | /* Point the symbol at the stub. There may be multiple stubs, | |
6351 | we don't really care; The main thing is to make this sym | |
8f3bab57 AM |
6352 | defined somewhere. Maybe defining the symbol in the stub |
6353 | section is a silly idea. If we didn't do this, htab->top_id | |
6354 | could disappear. */ | |
c862ae31 AM |
6355 | stub_entry->h->oh->root.type = bfd_link_hash_defined; |
6356 | stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec; | |
6357 | stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset; | |
6358 | } | |
6359 | ||
721956f4 | 6360 | /* Now build the stub. */ |
411e1bfb AM |
6361 | off = (bfd_vma) -1; |
6362 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
6363 | if (ent->addend == stub_entry->addend) | |
6364 | { | |
6365 | off = ent->plt.offset; | |
6366 | break; | |
6367 | } | |
721956f4 AM |
6368 | if (off >= (bfd_vma) -2) |
6369 | abort (); | |
6370 | ||
6371 | off &= ~ (bfd_vma) 1; | |
4ce794b7 AM |
6372 | off += (htab->plt->output_offset |
6373 | + htab->plt->output_section->vma | |
6374 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6375 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6376 | |
ad8e1ba5 | 6377 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
6378 | { |
6379 | (*_bfd_error_handler) | |
6380 | (_("linkage table error against `%s'"), | |
6381 | stub_entry->h->elf.root.root.string); | |
6382 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
6383 | htab->stub_error = TRUE; |
6384 | return FALSE; | |
721956f4 AM |
6385 | } |
6386 | ||
97b639ba | 6387 | p = build_plt_stub (htab->stub_bfd, loc, off); |
721956f4 AM |
6388 | size = p - loc; |
6389 | break; | |
6390 | ||
6391 | default: | |
6392 | BFD_FAIL (); | |
b34976b6 | 6393 | return FALSE; |
721956f4 AM |
6394 | } |
6395 | ||
97b639ba AM |
6396 | stub_entry->stub_sec->_cooked_size += size; |
6397 | ||
6398 | if (htab->emit_stub_syms | |
6399 | && !(stub_entry->stub_type == ppc_stub_plt_call | |
6400 | && stub_entry->h->oh->root.type == bfd_link_hash_defined | |
6401 | && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec | |
6402 | && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset)) | |
6403 | { | |
6404 | struct elf_link_hash_entry *h; | |
6405 | h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string, | |
6406 | TRUE, FALSE, FALSE); | |
6407 | if (h == NULL) | |
6408 | return FALSE; | |
6409 | if (h->root.type == bfd_link_hash_new) | |
6410 | { | |
6411 | h->root.type = bfd_link_hash_defined; | |
6412 | h->root.u.def.section = stub_entry->stub_sec; | |
6413 | h->root.u.def.value = stub_entry->stub_offset; | |
6414 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
6415 | | ELF_LINK_HASH_DEF_REGULAR | |
6416 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
6417 | | ELF_LINK_FORCED_LOCAL); | |
6418 | } | |
6419 | } | |
6420 | ||
b34976b6 | 6421 | return TRUE; |
721956f4 AM |
6422 | } |
6423 | ||
6424 | /* As above, but don't actually build the stub. Just bump offset so | |
6425 | we know stub section sizes, and select plt_branch stubs where | |
6426 | long_branch stubs won't do. */ | |
6427 | ||
b34976b6 | 6428 | static bfd_boolean |
4ce794b7 | 6429 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
721956f4 AM |
6430 | { |
6431 | struct ppc_stub_hash_entry *stub_entry; | |
63bc6f6c | 6432 | struct bfd_link_info *info; |
721956f4 AM |
6433 | struct ppc_link_hash_table *htab; |
6434 | bfd_vma off; | |
6435 | int size; | |
6436 | ||
6437 | /* Massage our args to the form they really have. */ | |
6438 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
63bc6f6c AM |
6439 | info = in_arg; |
6440 | ||
6441 | htab = ppc_hash_table (info); | |
721956f4 AM |
6442 | |
6443 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
6444 | { | |
411e1bfb | 6445 | struct plt_entry *ent; |
58ac9f71 | 6446 | off = (bfd_vma) -1; |
411e1bfb AM |
6447 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
6448 | if (ent->addend == stub_entry->addend) | |
6449 | { | |
6450 | off = ent->plt.offset & ~(bfd_vma) 1; | |
6451 | break; | |
6452 | } | |
58ac9f71 | 6453 | if (off >= (bfd_vma) -2) |
411e1bfb | 6454 | abort (); |
4ce794b7 AM |
6455 | off += (htab->plt->output_offset |
6456 | + htab->plt->output_section->vma | |
6457 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6458 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6459 | |
ad8e1ba5 | 6460 | size = PLT_CALL_STUB_SIZE; |
4ce794b7 | 6461 | if (PPC_HA (off + 16) != PPC_HA (off)) |
721956f4 AM |
6462 | size += 4; |
6463 | } | |
6464 | else | |
6465 | { | |
ad8e1ba5 AM |
6466 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
6467 | variants. */ | |
721956f4 AM |
6468 | off = (stub_entry->target_value |
6469 | + stub_entry->target_section->output_offset | |
6470 | + stub_entry->target_section->output_section->vma); | |
6471 | off -= (stub_entry->stub_sec->_raw_size | |
6472 | + stub_entry->stub_sec->output_offset | |
6473 | + stub_entry->stub_sec->output_section->vma); | |
6474 | ||
ad8e1ba5 AM |
6475 | /* Reset the stub type from the plt variant in case we now |
6476 | can reach with a shorter stub. */ | |
6477 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
6478 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
6479 | ||
6480 | size = 4; | |
6481 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
6482 | { | |
6483 | off -= 12; | |
6484 | size = 16; | |
6485 | } | |
6486 | ||
6487 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
6488 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
6489 | { | |
6490 | struct ppc_branch_hash_entry *br_entry; | |
6491 | ||
6492 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6493 | stub_entry->root.string + 9, | |
b34976b6 | 6494 | TRUE, FALSE); |
721956f4 AM |
6495 | if (br_entry == NULL) |
6496 | { | |
6497 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
6498 | stub_entry->root.string + 9); | |
b34976b6 AM |
6499 | htab->stub_error = TRUE; |
6500 | return FALSE; | |
721956f4 AM |
6501 | } |
6502 | ||
6503 | if (br_entry->iter != htab->stub_iteration) | |
6504 | { | |
6505 | br_entry->iter = htab->stub_iteration; | |
4ce794b7 AM |
6506 | br_entry->offset = htab->brlt->_raw_size; |
6507 | htab->brlt->_raw_size += 8; | |
63bc6f6c AM |
6508 | |
6509 | if (info->shared) | |
6510 | htab->relbrlt->_raw_size += sizeof (Elf64_External_Rela); | |
721956f4 | 6511 | } |
ad8e1ba5 AM |
6512 | |
6513 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 6514 | size = 16; |
ad8e1ba5 AM |
6515 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
6516 | size = 28; | |
721956f4 AM |
6517 | } |
6518 | } | |
6519 | ||
6520 | stub_entry->stub_sec->_raw_size += size; | |
b34976b6 | 6521 | return TRUE; |
721956f4 AM |
6522 | } |
6523 | ||
6524 | /* Set up various things so that we can make a list of input sections | |
6525 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 6526 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
6527 | |
6528 | int | |
4ce794b7 | 6529 | ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
721956f4 AM |
6530 | { |
6531 | bfd *input_bfd; | |
734b6cf9 | 6532 | int top_id, top_index, id; |
721956f4 | 6533 | asection *section; |
734b6cf9 | 6534 | asection **input_list; |
721956f4 AM |
6535 | bfd_size_type amt; |
6536 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6537 | ||
4ce794b7 | 6538 | if (htab->brlt == NULL) |
721956f4 AM |
6539 | return 0; |
6540 | ||
1e2f5b6e | 6541 | /* Find the top input section id. */ |
3d6f9012 | 6542 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
6543 | input_bfd != NULL; |
6544 | input_bfd = input_bfd->link_next) | |
6545 | { | |
721956f4 AM |
6546 | for (section = input_bfd->sections; |
6547 | section != NULL; | |
6548 | section = section->next) | |
6549 | { | |
6550 | if (top_id < section->id) | |
6551 | top_id = section->id; | |
6552 | } | |
6553 | } | |
721956f4 | 6554 | |
8f3bab57 | 6555 | htab->top_id = top_id; |
721956f4 | 6556 | amt = sizeof (struct map_stub) * (top_id + 1); |
4ce794b7 | 6557 | htab->stub_group = bfd_zmalloc (amt); |
721956f4 AM |
6558 | if (htab->stub_group == NULL) |
6559 | return -1; | |
6560 | ||
3d6f9012 AM |
6561 | /* Set toc_off for com, und, abs and ind sections. */ |
6562 | for (id = 0; id < 3; id++) | |
6563 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 6564 | |
3d6f9012 | 6565 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
6566 | |
6567 | /* We can't use output_bfd->section_count here to find the top output | |
6568 | section index as some sections may have been removed, and | |
6569 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
6570 | for (section = output_bfd->sections, top_index = 0; | |
6571 | section != NULL; | |
6572 | section = section->next) | |
6573 | { | |
6574 | if (top_index < section->index) | |
6575 | top_index = section->index; | |
6576 | } | |
6577 | ||
6578 | htab->top_index = top_index; | |
6579 | amt = sizeof (asection *) * (top_index + 1); | |
4ce794b7 | 6580 | input_list = bfd_zmalloc (amt); |
734b6cf9 AM |
6581 | htab->input_list = input_list; |
6582 | if (input_list == NULL) | |
6583 | return -1; | |
6584 | ||
721956f4 AM |
6585 | return 1; |
6586 | } | |
6587 | ||
e717da7e AM |
6588 | /* The linker repeatedly calls this function for each TOC input section |
6589 | and linker generated GOT section. Group input bfds such that the toc | |
6590 | within a group is less than 64k in size. Will break with cute linker | |
6591 | scripts that play games with dot in the output toc section. */ | |
ad8e1ba5 AM |
6592 | |
6593 | void | |
4ce794b7 | 6594 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
ad8e1ba5 AM |
6595 | { |
6596 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6597 | ||
6598 | if (!htab->no_multi_toc) | |
6599 | { | |
6600 | bfd_vma addr = isec->output_offset + isec->output_section->vma; | |
6601 | bfd_vma off = addr - htab->toc_curr; | |
6602 | if (off + isec->_raw_size > 0x10000) | |
6603 | { | |
6604 | htab->toc_curr = addr; | |
6605 | htab->multi_toc_needed = 1; | |
6606 | } | |
6607 | elf_gp (isec->owner) = (htab->toc_curr | |
6608 | - elf_gp (isec->output_section->owner) | |
6609 | + TOC_BASE_OFF); | |
6610 | } | |
6611 | } | |
6612 | ||
6613 | /* Called after the last call to the above function. */ | |
6614 | ||
6615 | void | |
4ce794b7 AM |
6616 | ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED, |
6617 | struct bfd_link_info *info) | |
ad8e1ba5 AM |
6618 | { |
6619 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 AM |
6620 | |
6621 | /* toc_curr tracks the TOC offset used for code sections below in | |
6622 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 6623 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
6624 | } |
6625 | ||
9b5ecbd0 AM |
6626 | /* No toc references were found in ISEC. If the code in ISEC makes no |
6627 | calls, then there's no need to use toc adjusting stubs when branching | |
6628 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
6629 | load r2. */ | |
6630 | ||
6631 | static int | |
4ce794b7 | 6632 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
9b5ecbd0 AM |
6633 | { |
6634 | bfd_byte *contents; | |
6635 | bfd_size_type i; | |
6636 | int ret; | |
6637 | int branch_ok; | |
6638 | ||
772119ce AM |
6639 | /* We know none of our code bearing sections will need toc stubs. */ |
6640 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
6641 | return 0; | |
6642 | ||
082c50f8 AM |
6643 | if (isec->_raw_size == 0) |
6644 | return 0; | |
6645 | ||
9b5ecbd0 AM |
6646 | /* Hack for linux kernel. .fixup contains branches, but only back to |
6647 | the function that hit an exception. */ | |
6648 | branch_ok = strcmp (isec->name, ".fixup") == 0; | |
6649 | ||
6650 | contents = elf_section_data (isec)->this_hdr.contents; | |
6651 | if (contents == NULL) | |
6652 | { | |
6653 | contents = bfd_malloc (isec->_raw_size); | |
6654 | if (contents == NULL) | |
6655 | return -1; | |
6656 | if (! bfd_get_section_contents (isec->owner, isec, contents, | |
e717da7e | 6657 | 0, isec->_raw_size)) |
9b5ecbd0 AM |
6658 | { |
6659 | free (contents); | |
6660 | return -1; | |
6661 | } | |
6662 | if (info->keep_memory) | |
6663 | elf_section_data (isec)->this_hdr.contents = contents; | |
6664 | } | |
6665 | ||
6666 | /* Code scan, because we don't necessarily have relocs on calls to | |
6667 | static functions. */ | |
6668 | ret = 0; | |
6669 | for (i = 0; i < isec->_raw_size; i += 4) | |
6670 | { | |
6671 | unsigned long insn = bfd_get_32 (isec->owner, contents + i); | |
6672 | /* Is this a branch? */ | |
772119ce | 6673 | if ((insn & (0x3f << 26)) == (18 << 26) |
9b5ecbd0 AM |
6674 | /* If branch and link, it's a function call. */ |
6675 | && ((insn & 1) != 0 | |
6676 | /* Sibling calls use a plain branch. I don't know a way | |
6677 | of deciding whether a branch is really a sibling call. */ | |
6678 | || !branch_ok)) | |
6679 | { | |
6680 | ret = 1; | |
6681 | break; | |
6682 | } | |
6683 | } | |
6684 | ||
6685 | if (elf_section_data (isec)->this_hdr.contents != contents) | |
6686 | free (contents); | |
6687 | return ret; | |
6688 | } | |
6689 | ||
721956f4 AM |
6690 | /* The linker repeatedly calls this function for each input section, |
6691 | in the order that input sections are linked into output sections. | |
6692 | Build lists of input sections to determine groupings between which | |
6693 | we may insert linker stubs. */ | |
6694 | ||
9b5ecbd0 | 6695 | bfd_boolean |
4ce794b7 | 6696 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
721956f4 AM |
6697 | { |
6698 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9b5ecbd0 | 6699 | int ret; |
721956f4 | 6700 | |
734b6cf9 AM |
6701 | if ((isec->output_section->flags & SEC_CODE) != 0 |
6702 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 6703 | { |
734b6cf9 | 6704 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 6705 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 6706 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
6707 | /* This happens to make the list in reverse order, |
6708 | which is what we want. */ | |
734b6cf9 AM |
6709 | PREV_SEC (isec) = *list; |
6710 | *list = isec; | |
721956f4 | 6711 | } |
ad8e1ba5 AM |
6712 | |
6713 | /* If a code section has a function that uses the TOC then we need | |
6714 | to use the right TOC (obviously). Also, make sure that .opd gets | |
ee87f2da AM |
6715 | the correct TOC value for R_PPC64_TOC relocs that don't have or |
6716 | can't find their function symbol (shouldn't ever happen now). */ | |
ad8e1ba5 | 6717 | if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0) |
9b5ecbd0 AM |
6718 | { |
6719 | if (elf_gp (isec->owner) != 0) | |
6720 | htab->toc_curr = elf_gp (isec->owner); | |
6721 | } | |
6722 | else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0) | |
6723 | return FALSE; | |
6724 | else | |
6725 | isec->has_gp_reloc = ret; | |
ad8e1ba5 AM |
6726 | |
6727 | /* Functions that don't use the TOC can belong in any TOC group. | |
6728 | Use the last TOC base. This happens to make _init and _fini | |
6729 | pasting work. */ | |
6730 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 6731 | return TRUE; |
721956f4 AM |
6732 | } |
6733 | ||
6734 | /* See whether we can group stub sections together. Grouping stub | |
6735 | sections may result in fewer stubs. More importantly, we need to | |
6736 | put all .init* and .fini* stubs at the beginning of the .init or | |
6737 | .fini output sections respectively, because glibc splits the | |
6738 | _init and _fini functions into multiple parts. Putting a stub in | |
6739 | the middle of a function is not a good idea. */ | |
6740 | ||
6741 | static void | |
4ce794b7 AM |
6742 | group_sections (struct ppc_link_hash_table *htab, |
6743 | bfd_size_type stub_group_size, | |
6744 | bfd_boolean stubs_always_before_branch) | |
721956f4 | 6745 | { |
734b6cf9 AM |
6746 | asection **list = htab->input_list + htab->top_index; |
6747 | do | |
721956f4 | 6748 | { |
734b6cf9 AM |
6749 | asection *tail = *list; |
6750 | while (tail != NULL) | |
721956f4 | 6751 | { |
734b6cf9 AM |
6752 | asection *curr; |
6753 | asection *prev; | |
6754 | bfd_size_type total; | |
6755 | bfd_boolean big_sec; | |
6756 | bfd_vma curr_toc; | |
6757 | ||
6758 | curr = tail; | |
6759 | if (tail->_cooked_size) | |
6760 | total = tail->_cooked_size; | |
6761 | else | |
6762 | total = tail->_raw_size; | |
6763 | big_sec = total >= stub_group_size; | |
6764 | curr_toc = htab->stub_group[tail->id].toc_off; | |
6765 | ||
6766 | while ((prev = PREV_SEC (curr)) != NULL | |
6767 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
6768 | < stub_group_size) |
6769 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
6770 | curr = prev; |
6771 | ||
6772 | /* OK, the size from the start of CURR to the end is less | |
6773 | than stub_group_size and thus can be handled by one stub | |
6774 | section. (or the tail section is itself larger than | |
6775 | stub_group_size, in which case we may be toast.) We | |
6776 | should really be keeping track of the total size of stubs | |
6777 | added here, as stubs contribute to the final output | |
6778 | section size. That's a little tricky, and this way will | |
6779 | only break if stubs added make the total size more than | |
6780 | 2^25, ie. for the default stub_group_size, if stubs total | |
6781 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
6782 | do | |
721956f4 AM |
6783 | { |
6784 | prev = PREV_SEC (tail); | |
734b6cf9 | 6785 | /* Set up this stub group. */ |
721956f4 AM |
6786 | htab->stub_group[tail->id].link_sec = curr; |
6787 | } | |
734b6cf9 AM |
6788 | while (tail != curr && (tail = prev) != NULL); |
6789 | ||
6790 | /* But wait, there's more! Input sections up to stub_group_size | |
6791 | bytes before the stub section can be handled by it too. | |
6792 | Don't do this if we have a really large section after the | |
6793 | stubs, as adding more stubs increases the chance that | |
6794 | branches may not reach into the stub section. */ | |
6795 | if (!stubs_always_before_branch && !big_sec) | |
6796 | { | |
6797 | total = 0; | |
6798 | while (prev != NULL | |
6799 | && ((total += tail->output_offset - prev->output_offset) | |
6800 | < stub_group_size) | |
6801 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
6802 | { | |
6803 | tail = prev; | |
6804 | prev = PREV_SEC (tail); | |
6805 | htab->stub_group[tail->id].link_sec = curr; | |
6806 | } | |
6807 | } | |
6808 | tail = prev; | |
721956f4 AM |
6809 | } |
6810 | } | |
734b6cf9 AM |
6811 | while (list-- != htab->input_list); |
6812 | free (htab->input_list); | |
721956f4 AM |
6813 | #undef PREV_SEC |
6814 | } | |
6815 | ||
721956f4 AM |
6816 | /* Determine and set the size of the stub section for a final link. |
6817 | ||
6818 | The basic idea here is to examine all the relocations looking for | |
6819 | PC-relative calls to a target that is unreachable with a "bl" | |
6820 | instruction. */ | |
6821 | ||
b34976b6 | 6822 | bfd_boolean |
4ce794b7 | 6823 | ppc64_elf_size_stubs (bfd *output_bfd, |
4ce794b7 AM |
6824 | struct bfd_link_info *info, |
6825 | bfd_signed_vma group_size, | |
6826 | asection *(*add_stub_section) (const char *, asection *), | |
6827 | void (*layout_sections_again) (void)) | |
721956f4 AM |
6828 | { |
6829 | bfd_size_type stub_group_size; | |
b34976b6 | 6830 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6831 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
6832 | ||
6833 | /* Stash our params away. */ | |
721956f4 AM |
6834 | htab->add_stub_section = add_stub_section; |
6835 | htab->layout_sections_again = layout_sections_again; | |
6836 | stubs_always_before_branch = group_size < 0; | |
6837 | if (group_size < 0) | |
6838 | stub_group_size = -group_size; | |
6839 | else | |
6840 | stub_group_size = group_size; | |
6841 | if (stub_group_size == 1) | |
6842 | { | |
6843 | /* Default values. */ | |
58ac9f71 AM |
6844 | if (stubs_always_before_branch) |
6845 | { | |
6846 | stub_group_size = 0x1e00000; | |
6847 | if (htab->has_14bit_branch) | |
6848 | stub_group_size = 0x7800; | |
6849 | } | |
6850 | else | |
6851 | { | |
6852 | stub_group_size = 0x1c00000; | |
6853 | if (htab->has_14bit_branch) | |
6854 | stub_group_size = 0x7000; | |
6855 | } | |
721956f4 AM |
6856 | } |
6857 | ||
6858 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
6859 | ||
721956f4 AM |
6860 | while (1) |
6861 | { | |
6862 | bfd *input_bfd; | |
6863 | unsigned int bfd_indx; | |
6864 | asection *stub_sec; | |
b34976b6 | 6865 | bfd_boolean stub_changed; |
721956f4 AM |
6866 | |
6867 | htab->stub_iteration += 1; | |
b34976b6 | 6868 | stub_changed = FALSE; |
721956f4 AM |
6869 | |
6870 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
6871 | input_bfd != NULL; | |
6872 | input_bfd = input_bfd->link_next, bfd_indx++) | |
6873 | { | |
6874 | Elf_Internal_Shdr *symtab_hdr; | |
6875 | asection *section; | |
6cdc0ccc | 6876 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
6877 | |
6878 | /* We'll need the symbol table in a second. */ | |
6879 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6880 | if (symtab_hdr->sh_info == 0) | |
6881 | continue; | |
6882 | ||
721956f4 AM |
6883 | /* Walk over each section attached to the input bfd. */ |
6884 | for (section = input_bfd->sections; | |
6885 | section != NULL; | |
6886 | section = section->next) | |
6887 | { | |
721956f4 | 6888 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
6889 | |
6890 | /* If there aren't any relocs, then there's nothing more | |
6891 | to do. */ | |
6892 | if ((section->flags & SEC_RELOC) == 0 | |
6893 | || section->reloc_count == 0) | |
6894 | continue; | |
6895 | ||
6896 | /* If this section is a link-once section that will be | |
6897 | discarded, then don't create any stubs. */ | |
6898 | if (section->output_section == NULL | |
6899 | || section->output_section->owner != output_bfd) | |
6900 | continue; | |
6901 | ||
1e2f5b6e AM |
6902 | /* Get the relocs. */ |
6903 | internal_relocs | |
4ce794b7 | 6904 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 6905 | info->keep_memory); |
721956f4 | 6906 | if (internal_relocs == NULL) |
1e2f5b6e | 6907 | goto error_ret_free_local; |
721956f4 AM |
6908 | |
6909 | /* Now examine each relocation. */ | |
6910 | irela = internal_relocs; | |
6911 | irelaend = irela + section->reloc_count; | |
6912 | for (; irela < irelaend; irela++) | |
6913 | { | |
4ce794b7 AM |
6914 | enum elf_ppc64_reloc_type r_type; |
6915 | unsigned int r_indx; | |
721956f4 AM |
6916 | enum ppc_stub_type stub_type; |
6917 | struct ppc_stub_hash_entry *stub_entry; | |
6918 | asection *sym_sec; | |
6919 | bfd_vma sym_value; | |
6920 | bfd_vma destination; | |
6921 | struct ppc_link_hash_entry *hash; | |
411e1bfb AM |
6922 | struct elf_link_hash_entry *h; |
6923 | Elf_Internal_Sym *sym; | |
721956f4 AM |
6924 | char *stub_name; |
6925 | const asection *id_sec; | |
6926 | ||
6927 | r_type = ELF64_R_TYPE (irela->r_info); | |
6928 | r_indx = ELF64_R_SYM (irela->r_info); | |
6929 | ||
4ce794b7 | 6930 | if (r_type >= R_PPC64_max) |
721956f4 AM |
6931 | { |
6932 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 6933 | goto error_ret_free_internal; |
721956f4 AM |
6934 | } |
6935 | ||
6936 | /* Only look for stubs on branch instructions. */ | |
4ce794b7 AM |
6937 | if (r_type != R_PPC64_REL24 |
6938 | && r_type != R_PPC64_REL14 | |
6939 | && r_type != R_PPC64_REL14_BRTAKEN | |
6940 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
721956f4 AM |
6941 | continue; |
6942 | ||
6943 | /* Now determine the call target, its name, value, | |
6944 | section. */ | |
721956f4 | 6945 | destination = 0; |
411e1bfb AM |
6946 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6947 | r_indx, input_bfd)) | |
6948 | goto error_ret_free_internal; | |
6949 | hash = (struct ppc_link_hash_entry *) h; | |
6950 | ||
6951 | if (hash == NULL) | |
721956f4 AM |
6952 | { |
6953 | /* It's a local symbol. */ | |
411e1bfb | 6954 | sym_value = sym->st_value; |
721956f4 AM |
6955 | destination = (sym_value + irela->r_addend |
6956 | + sym_sec->output_offset | |
6957 | + sym_sec->output_section->vma); | |
6958 | } | |
6959 | else | |
6960 | { | |
6961 | /* It's an external symbol. */ | |
411e1bfb | 6962 | sym_value = 0; |
721956f4 AM |
6963 | if (hash->elf.root.type == bfd_link_hash_defined |
6964 | || hash->elf.root.type == bfd_link_hash_defweak) | |
6965 | { | |
721956f4 AM |
6966 | sym_value = hash->elf.root.u.def.value; |
6967 | if (sym_sec->output_section != NULL) | |
6968 | destination = (sym_value + irela->r_addend | |
6969 | + sym_sec->output_offset | |
6970 | + sym_sec->output_section->vma); | |
6971 | } | |
6972 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
6973 | ; | |
6974 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
6975 | ; | |
6976 | else | |
6977 | { | |
6978 | bfd_set_error (bfd_error_bad_value); | |
6979 | goto error_ret_free_internal; | |
6980 | } | |
6981 | } | |
6982 | ||
6983 | /* Determine what (if any) linker stub is needed. */ | |
6984 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
6985 | destination); | |
ad8e1ba5 AM |
6986 | |
6987 | if (stub_type != ppc_stub_plt_call) | |
6988 | { | |
6989 | /* Check whether we need a TOC adjusting stub. | |
6990 | Since the linker pastes together pieces from | |
6991 | different object files when creating the | |
6992 | _init and _fini functions, it may be that a | |
6993 | call to what looks like a local sym is in | |
6994 | fact a call needing a TOC adjustment. */ | |
6995 | if (sym_sec != NULL | |
6996 | && sym_sec->output_section != NULL | |
6997 | && (htab->stub_group[sym_sec->id].toc_off | |
9b5ecbd0 AM |
6998 | != htab->stub_group[section->id].toc_off) |
6999 | && sym_sec->has_gp_reloc | |
7000 | && section->has_gp_reloc) | |
ad8e1ba5 AM |
7001 | stub_type = ppc_stub_long_branch_r2off; |
7002 | } | |
7003 | ||
721956f4 AM |
7004 | if (stub_type == ppc_stub_none) |
7005 | continue; | |
7006 | ||
411e1bfb AM |
7007 | /* __tls_get_addr calls might be eliminated. */ |
7008 | if (stub_type != ppc_stub_plt_call | |
7009 | && hash != NULL | |
7010 | && &hash->elf == htab->tls_get_addr | |
7011 | && section->has_tls_reloc | |
7012 | && irela != internal_relocs) | |
7013 | { | |
7014 | /* Get tls info. */ | |
e7b938ca | 7015 | char *tls_mask; |
411e1bfb | 7016 | |
0d4792f7 | 7017 | if (!get_tls_mask (&tls_mask, NULL, &local_syms, |
411e1bfb AM |
7018 | irela - 1, input_bfd)) |
7019 | goto error_ret_free_internal; | |
e7b938ca | 7020 | if (*tls_mask != 0) |
411e1bfb AM |
7021 | continue; |
7022 | } | |
7023 | ||
721956f4 AM |
7024 | /* Support for grouping stub sections. */ |
7025 | id_sec = htab->stub_group[section->id].link_sec; | |
7026 | ||
7027 | /* Get the name of this stub. */ | |
7028 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
7029 | if (!stub_name) | |
7030 | goto error_ret_free_internal; | |
7031 | ||
7032 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 7033 | stub_name, FALSE, FALSE); |
721956f4 AM |
7034 | if (stub_entry != NULL) |
7035 | { | |
7036 | /* The proper stub has already been created. */ | |
7037 | free (stub_name); | |
7038 | continue; | |
7039 | } | |
7040 | ||
7041 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
7042 | if (stub_entry == NULL) | |
7043 | { | |
7044 | free (stub_name); | |
6cdc0ccc AM |
7045 | error_ret_free_internal: |
7046 | if (elf_section_data (section)->relocs == NULL) | |
7047 | free (internal_relocs); | |
7048 | error_ret_free_local: | |
7049 | if (local_syms != NULL | |
7050 | && (symtab_hdr->contents | |
7051 | != (unsigned char *) local_syms)) | |
7052 | free (local_syms); | |
b34976b6 | 7053 | return FALSE; |
721956f4 AM |
7054 | } |
7055 | ||
ad8e1ba5 | 7056 | stub_entry->stub_type = stub_type; |
721956f4 AM |
7057 | stub_entry->target_value = sym_value; |
7058 | stub_entry->target_section = sym_sec; | |
721956f4 | 7059 | stub_entry->h = hash; |
411e1bfb | 7060 | stub_entry->addend = irela->r_addend; |
b34976b6 | 7061 | stub_changed = TRUE; |
721956f4 AM |
7062 | } |
7063 | ||
7064 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 7065 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 7066 | free (internal_relocs); |
721956f4 | 7067 | } |
6cdc0ccc AM |
7068 | |
7069 | if (local_syms != NULL | |
7070 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
7071 | { | |
7072 | if (!info->keep_memory) | |
7073 | free (local_syms); | |
7074 | else | |
7075 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7076 | } | |
721956f4 AM |
7077 | } |
7078 | ||
7079 | if (!stub_changed) | |
7080 | break; | |
7081 | ||
7082 | /* OK, we've added some stubs. Find out the new size of the | |
7083 | stub sections. */ | |
7084 | for (stub_sec = htab->stub_bfd->sections; | |
7085 | stub_sec != NULL; | |
7086 | stub_sec = stub_sec->next) | |
e717da7e AM |
7087 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
7088 | { | |
7089 | stub_sec->_raw_size = 0; | |
7090 | stub_sec->_cooked_size = 0; | |
7091 | } | |
4ce794b7 AM |
7092 | htab->brlt->_raw_size = 0; |
7093 | htab->brlt->_cooked_size = 0; | |
63bc6f6c AM |
7094 | if (info->shared) |
7095 | { | |
7096 | htab->relbrlt->_raw_size = 0; | |
7097 | htab->relbrlt->_cooked_size = 0; | |
7098 | } | |
721956f4 | 7099 | |
63bc6f6c | 7100 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
721956f4 AM |
7101 | |
7102 | /* Ask the linker to do its stuff. */ | |
7103 | (*htab->layout_sections_again) (); | |
7104 | } | |
7105 | ||
afbe61cf AM |
7106 | /* It would be nice to strip .branch_lt from the output if the |
7107 | section is empty, but it's too late. If we strip sections here, | |
7108 | the dynamic symbol table is corrupted since the section symbol | |
7109 | for the stripped section isn't written. */ | |
721956f4 | 7110 | |
b34976b6 | 7111 | return TRUE; |
721956f4 AM |
7112 | } |
7113 | ||
7114 | /* Called after we have determined section placement. If sections | |
805fc799 | 7115 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 7116 | |
805fc799 | 7117 | bfd_vma |
4ce794b7 | 7118 | ppc64_elf_toc (bfd *obfd) |
721956f4 | 7119 | { |
805fc799 AM |
7120 | asection *s; |
7121 | bfd_vma TOCstart; | |
721956f4 | 7122 | |
805fc799 AM |
7123 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
7124 | order. The TOC starts where the first of these sections starts. */ | |
7125 | s = bfd_get_section_by_name (obfd, ".got"); | |
7126 | if (s == NULL) | |
7127 | s = bfd_get_section_by_name (obfd, ".toc"); | |
7128 | if (s == NULL) | |
7129 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
7130 | if (s == NULL) | |
7131 | s = bfd_get_section_by_name (obfd, ".plt"); | |
7132 | if (s == NULL) | |
7133 | { | |
7134 | /* This may happen for | |
7135 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
7136 | .toc directive | |
7137 | o bad linker script | |
7138 | o --gc-sections and empty TOC sections | |
7139 | ||
7140 | FIXME: Warn user? */ | |
7141 | ||
7142 | /* Look for a likely section. We probably won't even be | |
7143 | using TOCstart. */ | |
7144 | for (s = obfd->sections; s != NULL; s = s->next) | |
7145 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
7146 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7147 | break; | |
721956f4 | 7148 | if (s == NULL) |
805fc799 AM |
7149 | for (s = obfd->sections; s != NULL; s = s->next) |
7150 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
7151 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7152 | break; | |
721956f4 | 7153 | if (s == NULL) |
805fc799 AM |
7154 | for (s = obfd->sections; s != NULL; s = s->next) |
7155 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
7156 | break; | |
721956f4 | 7157 | if (s == NULL) |
805fc799 AM |
7158 | for (s = obfd->sections; s != NULL; s = s->next) |
7159 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
7160 | break; | |
7161 | } | |
721956f4 | 7162 | |
805fc799 AM |
7163 | TOCstart = 0; |
7164 | if (s != NULL) | |
7165 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 7166 | |
805fc799 | 7167 | return TOCstart; |
721956f4 AM |
7168 | } |
7169 | ||
7170 | /* Build all the stubs associated with the current output file. | |
7171 | The stubs are kept in a hash table attached to the main linker | |
7172 | hash table. This function is called via gldelf64ppc_finish. */ | |
7173 | ||
b34976b6 | 7174 | bfd_boolean |
4ce794b7 AM |
7175 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
7176 | struct bfd_link_info *info, | |
7177 | char **stats) | |
5d1634d7 AM |
7178 | { |
7179 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 7180 | asection *stub_sec; |
5d1634d7 | 7181 | bfd_byte *p; |
e717da7e | 7182 | int stub_sec_count = 0; |
5d1634d7 | 7183 | |
ad8e1ba5 | 7184 | htab->emit_stub_syms = emit_stub_syms; |
721956f4 AM |
7185 | for (stub_sec = htab->stub_bfd->sections; |
7186 | stub_sec != NULL; | |
7187 | stub_sec = stub_sec->next) | |
e717da7e AM |
7188 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
7189 | { | |
7190 | bfd_size_type size; | |
721956f4 | 7191 | |
e717da7e AM |
7192 | /* Allocate memory to hold the linker stubs. */ |
7193 | size = stub_sec->_raw_size; | |
7194 | if (size != 0) | |
7195 | { | |
7196 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); | |
7197 | if (stub_sec->contents == NULL) | |
7198 | return FALSE; | |
7199 | } | |
7200 | stub_sec->_cooked_size = 0; | |
7201 | } | |
5d1634d7 | 7202 | |
4ce794b7 | 7203 | if (htab->plt != NULL) |
5d1634d7 | 7204 | { |
9f951329 | 7205 | unsigned int indx; |
ad8e1ba5 | 7206 | bfd_vma plt0; |
9f951329 | 7207 | |
721956f4 | 7208 | /* Build the .glink plt call stub. */ |
4ce794b7 AM |
7209 | plt0 = (htab->plt->output_section->vma |
7210 | + htab->plt->output_offset | |
7211 | - (htab->glink->output_section->vma | |
7212 | + htab->glink->output_offset | |
ad8e1ba5 AM |
7213 | + GLINK_CALL_STUB_SIZE)); |
7214 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 7215 | { |
ad8e1ba5 AM |
7216 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
7217 | bfd_set_error (bfd_error_bad_value); | |
7218 | return FALSE; | |
721956f4 | 7219 | } |
721956f4 | 7220 | |
97b639ba AM |
7221 | if (htab->emit_stub_syms) |
7222 | { | |
7223 | struct elf_link_hash_entry *h; | |
7224 | h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE); | |
7225 | if (h == NULL) | |
7226 | return FALSE; | |
7227 | if (h->root.type == bfd_link_hash_new) | |
7228 | { | |
7229 | h->root.type = bfd_link_hash_defined; | |
7230 | h->root.u.def.section = htab->glink; | |
7231 | h->root.u.def.value = 0; | |
7232 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
7233 | | ELF_LINK_HASH_DEF_REGULAR | |
7234 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
7235 | | ELF_LINK_FORCED_LOCAL); | |
7236 | } | |
7237 | } | |
4ce794b7 AM |
7238 | p = htab->glink->contents; |
7239 | bfd_put_32 (htab->glink->owner, MFCTR_R12, p); | |
ad8e1ba5 | 7240 | p += 4; |
4ce794b7 | 7241 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p); |
ad8e1ba5 | 7242 | p += 4; |
4ce794b7 | 7243 | bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p); |
ad8e1ba5 | 7244 | p += 4; |
4ce794b7 | 7245 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 7246 | p += 4; |
4ce794b7 | 7247 | bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p); |
ad8e1ba5 | 7248 | p += 4; |
4ce794b7 | 7249 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p); |
ad8e1ba5 | 7250 | p += 4; |
4ce794b7 | 7251 | bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p); |
ad8e1ba5 | 7252 | p += 4; |
4ce794b7 | 7253 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 7254 | p += 4; |
4ce794b7 | 7255 | bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p); |
ad8e1ba5 | 7256 | p += 4; |
4ce794b7 | 7257 | bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); |
ad8e1ba5 | 7258 | p += 4; |
4ce794b7 | 7259 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 7260 | p += 4; |
4ce794b7 | 7261 | bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 7262 | p += 4; |
4ce794b7 | 7263 | bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p); |
ad8e1ba5 | 7264 | p += 4; |
4ce794b7 | 7265 | bfd_put_32 (htab->glink->owner, MTCTR_R11, p); |
ad8e1ba5 | 7266 | p += 4; |
4ce794b7 | 7267 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p); |
ad8e1ba5 | 7268 | p += 4; |
4ce794b7 | 7269 | bfd_put_32 (htab->glink->owner, BCTR, p); |
ad8e1ba5 AM |
7270 | p += 4; |
7271 | ||
9f951329 AM |
7272 | /* Build the .glink lazy link call stubs. */ |
7273 | indx = 0; | |
4ce794b7 | 7274 | while (p < htab->glink->contents + htab->glink->_raw_size) |
9f951329 AM |
7275 | { |
7276 | if (indx < 0x8000) | |
7277 | { | |
4ce794b7 | 7278 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
9f951329 AM |
7279 | p += 4; |
7280 | } | |
7281 | else | |
7282 | { | |
4ce794b7 | 7283 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
9f951329 | 7284 | p += 4; |
4ce794b7 | 7285 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
9f951329 AM |
7286 | p += 4; |
7287 | } | |
4ce794b7 AM |
7288 | bfd_put_32 (htab->glink->owner, |
7289 | B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 7290 | indx++; |
9f951329 AM |
7291 | p += 4; |
7292 | } | |
4ce794b7 | 7293 | htab->glink->_cooked_size = p - htab->glink->contents; |
5d1634d7 | 7294 | } |
5d1634d7 | 7295 | |
4ce794b7 | 7296 | if (htab->brlt->_raw_size != 0) |
721956f4 | 7297 | { |
4ce794b7 AM |
7298 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
7299 | htab->brlt->_raw_size); | |
7300 | if (htab->brlt->contents == NULL) | |
b34976b6 | 7301 | return FALSE; |
721956f4 | 7302 | } |
63bc6f6c AM |
7303 | if (info->shared && htab->relbrlt->_raw_size != 0) |
7304 | { | |
7305 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
7306 | htab->relbrlt->_raw_size); | |
7307 | if (htab->relbrlt->contents == NULL) | |
7308 | return FALSE; | |
7309 | } | |
5d1634d7 | 7310 | |
721956f4 AM |
7311 | /* Build the stubs as directed by the stub hash table. */ |
7312 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 7313 | |
721956f4 AM |
7314 | for (stub_sec = htab->stub_bfd->sections; |
7315 | stub_sec != NULL; | |
7316 | stub_sec = stub_sec->next) | |
e717da7e AM |
7317 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
7318 | { | |
7319 | stub_sec_count += 1; | |
7320 | if (stub_sec->_raw_size != stub_sec->_cooked_size) | |
7321 | break; | |
7322 | } | |
5d1634d7 | 7323 | |
721956f4 | 7324 | if (stub_sec != NULL |
4ce794b7 | 7325 | || htab->glink->_raw_size != htab->glink->_cooked_size) |
5d1634d7 | 7326 | { |
b34976b6 | 7327 | htab->stub_error = TRUE; |
721956f4 | 7328 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 7329 | } |
721956f4 | 7330 | |
d2a300cf AM |
7331 | if (htab->stub_error) |
7332 | return FALSE; | |
7333 | ||
7334 | if (stats != NULL) | |
7335 | { | |
7336 | *stats = bfd_malloc (500); | |
7337 | if (*stats == NULL) | |
7338 | return FALSE; | |
7339 | ||
7340 | sprintf (*stats, _("linker stubs in %u groups\n" | |
7341 | " branch %lu\n" | |
7342 | " toc adjust %lu\n" | |
7343 | " long branch %lu\n" | |
7344 | " long toc adj %lu\n" | |
7345 | " plt call %lu"), | |
e717da7e | 7346 | stub_sec_count, |
4ce794b7 AM |
7347 | htab->stub_count[ppc_stub_long_branch - 1], |
7348 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
7349 | htab->stub_count[ppc_stub_plt_branch - 1], | |
7350 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
7351 | htab->stub_count[ppc_stub_plt_call - 1]); | |
d2a300cf AM |
7352 | } |
7353 | return TRUE; | |
5bd4f169 AM |
7354 | } |
7355 | ||
5bd4f169 AM |
7356 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7357 | to handle the relocations for a section. | |
7358 | ||
7359 | The relocs are always passed as Rela structures; if the section | |
7360 | actually uses Rel structures, the r_addend field will always be | |
7361 | zero. | |
7362 | ||
7363 | This function is responsible for adjust the section contents as | |
7364 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7365 | relocatable output file) adjusting the reloc addend as |
5bd4f169 AM |
7366 | necessary. |
7367 | ||
7368 | This function does not have to worry about setting the reloc | |
7369 | address or the reloc symbol index. | |
7370 | ||
7371 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7372 | ||
7373 | LOCAL_SECTIONS is an array giving the section in the input file | |
7374 | corresponding to the st_shndx field of each local symbol. | |
7375 | ||
7376 | The global hash table entry for the global symbols can be found | |
7377 | via elf_sym_hashes (input_bfd). | |
7378 | ||
1049f94e | 7379 | When generating relocatable output, this function must handle |
5bd4f169 AM |
7380 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7381 | going to be the section symbol corresponding to the output | |
7382 | section, which means that the addend must be adjusted | |
7383 | accordingly. */ | |
7384 | ||
b34976b6 | 7385 | static bfd_boolean |
4ce794b7 AM |
7386 | ppc64_elf_relocate_section (bfd *output_bfd, |
7387 | struct bfd_link_info *info, | |
7388 | bfd *input_bfd, | |
7389 | asection *input_section, | |
7390 | bfd_byte *contents, | |
7391 | Elf_Internal_Rela *relocs, | |
7392 | Elf_Internal_Sym *local_syms, | |
7393 | asection **local_sections) | |
5bd4f169 | 7394 | { |
65f38f15 | 7395 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
7396 | Elf_Internal_Shdr *symtab_hdr; |
7397 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
7398 | Elf_Internal_Rela *rel; |
7399 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
7400 | Elf_Internal_Rela outrel; |
7401 | bfd_byte *loc; | |
411e1bfb | 7402 | struct got_entry **local_got_ents; |
5bd4f169 | 7403 | bfd_vma TOCstart; |
b34976b6 AM |
7404 | bfd_boolean ret = TRUE; |
7405 | bfd_boolean is_opd; | |
96e0dda4 | 7406 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 7407 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 7408 | |
1049f94e | 7409 | if (info->relocatable) |
b34976b6 | 7410 | return TRUE; |
b491616a | 7411 | |
65f38f15 | 7412 | /* Initialize howto table if needed. */ |
5bd4f169 | 7413 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
7414 | ppc_howto_init (); |
7415 | ||
65f38f15 | 7416 | htab = ppc_hash_table (info); |
411e1bfb | 7417 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 7418 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
7419 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
7420 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 7421 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 7422 | |
5bd4f169 AM |
7423 | rel = relocs; |
7424 | relend = relocs + input_section->reloc_count; | |
7425 | for (; rel < relend; rel++) | |
7426 | { | |
04c9666a | 7427 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
7428 | bfd_vma addend; |
7429 | bfd_reloc_status_type r; | |
7430 | Elf_Internal_Sym *sym; | |
7431 | asection *sec; | |
7432 | struct elf_link_hash_entry *h; | |
721956f4 | 7433 | struct elf_link_hash_entry *fdh; |
5bd4f169 | 7434 | const char *sym_name; |
0d4792f7 | 7435 | unsigned long r_symndx, toc_symndx; |
951fd09b | 7436 | char tls_mask, tls_gd, tls_type; |
0d4792f7 | 7437 | char sym_type; |
5bd4f169 | 7438 | bfd_vma relocation; |
b34976b6 AM |
7439 | bfd_boolean unresolved_reloc; |
7440 | bfd_boolean warned; | |
50bc7936 | 7441 | unsigned long insn, mask; |
721956f4 AM |
7442 | struct ppc_stub_hash_entry *stub_entry; |
7443 | bfd_vma max_br_offset; | |
7444 | bfd_vma from; | |
5bd4f169 | 7445 | |
4ce794b7 | 7446 | r_type = ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 7447 | r_symndx = ELF64_R_SYM (rel->r_info); |
ee87f2da AM |
7448 | |
7449 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
7450 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
7451 | proper TOC base to use. */ | |
7452 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
7453 | && rel != relocs | |
7454 | && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64 | |
7455 | && is_opd) | |
7456 | r_symndx = ELF64_R_SYM (rel[-1].r_info); | |
7457 | ||
4ce794b7 AM |
7458 | sym = NULL; |
7459 | sec = NULL; | |
7460 | h = NULL; | |
7461 | sym_name = NULL; | |
b34976b6 AM |
7462 | unresolved_reloc = FALSE; |
7463 | warned = FALSE; | |
65f38f15 | 7464 | |
0b13192e | 7465 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
7466 | { |
7467 | /* It's a local symbol. */ | |
7468 | sym = local_syms + r_symndx; | |
7469 | sec = local_sections[r_symndx]; | |
411e1bfb | 7470 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
0d4792f7 | 7471 | sym_type = ELF64_ST_TYPE (sym->st_info); |
8517fae7 | 7472 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
1e2f5b6e AM |
7473 | if (elf_section_data (sec) != NULL) |
7474 | { | |
7475 | long *opd_sym_adjust; | |
7476 | ||
f0abc2a1 | 7477 | opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust; |
754021d0 | 7478 | if (opd_sym_adjust != NULL) |
1e2f5b6e AM |
7479 | relocation += opd_sym_adjust[sym->st_value / 24]; |
7480 | } | |
5bd4f169 AM |
7481 | } |
7482 | else | |
7483 | { | |
b2a8e766 AM |
7484 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
7485 | r_symndx, symtab_hdr, sym_hashes, | |
7486 | h, sec, relocation, | |
7487 | unresolved_reloc, warned); | |
5bd4f169 | 7488 | sym_name = h->root.root.string; |
0d4792f7 | 7489 | sym_type = h->type; |
5bd4f169 AM |
7490 | } |
7491 | ||
951fd09b AM |
7492 | /* TLS optimizations. Replace instruction sequences and relocs |
7493 | based on information we collected in tls_optimize. We edit | |
7494 | RELOCS so that --emit-relocs will output something sensible | |
7495 | for the final instruction stream. */ | |
7496 | tls_mask = 0; | |
7497 | tls_gd = 0; | |
0d4792f7 | 7498 | toc_symndx = 0; |
d881513a | 7499 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
7500 | { |
7501 | if (h != NULL) | |
e7b938ca | 7502 | tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask; |
411e1bfb AM |
7503 | else if (local_got_ents != NULL) |
7504 | { | |
e7b938ca AM |
7505 | char *lgot_masks; |
7506 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
7507 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb | 7508 | } |
0d4792f7 AM |
7509 | if (tls_mask == 0 && r_type == R_PPC64_TLS) |
7510 | { | |
7511 | /* Check for toc tls entries. */ | |
7512 | char *toc_tls; | |
7513 | ||
7514 | if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms, | |
7515 | rel, input_bfd)) | |
7516 | return FALSE; | |
7517 | ||
7518 | if (toc_tls) | |
7519 | tls_mask = *toc_tls; | |
7520 | } | |
7521 | } | |
7522 | ||
7523 | /* Check that tls relocs are used with tls syms, and non-tls | |
7524 | relocs are used with non-tls syms. */ | |
7525 | if (r_symndx != 0 | |
7526 | && r_type != R_PPC64_NONE | |
7527 | && (h == NULL | |
7528 | || h->root.type == bfd_link_hash_defined | |
7529 | || h->root.type == bfd_link_hash_defweak) | |
7530 | && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS)) | |
7531 | { | |
7532 | if (r_type == R_PPC64_TLS && tls_mask != 0) | |
7533 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ | |
7534 | ; | |
7535 | else | |
7536 | (*_bfd_error_handler) | |
7537 | (sym_type == STT_TLS | |
7538 | ? _("%s(%s+0x%lx): %s used with TLS symbol %s") | |
7539 | : _("%s(%s+0x%lx): %s used with non-TLS symbol %s"), | |
7540 | bfd_archive_filename (input_bfd), | |
7541 | input_section->name, | |
7542 | (long) rel->r_offset, | |
7543 | ppc64_elf_howto_table[r_type]->name, | |
7544 | sym_name); | |
411e1bfb AM |
7545 | } |
7546 | ||
7547 | /* Ensure reloc mapping code below stays sane. */ | |
7548 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
7549 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
7550 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
7551 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
7552 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
7553 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
7554 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
7555 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
7556 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
7557 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
7558 | abort (); | |
0d4792f7 | 7559 | |
411e1bfb AM |
7560 | switch (r_type) |
7561 | { | |
7562 | default: | |
411e1bfb AM |
7563 | break; |
7564 | ||
7565 | case R_PPC64_TOC16: | |
7566 | case R_PPC64_TOC16_LO: | |
7567 | case R_PPC64_TOC16_DS: | |
7568 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
7569 | { |
7570 | /* Check for toc tls entries. */ | |
7571 | char *toc_tls; | |
951fd09b | 7572 | int retval; |
411e1bfb | 7573 | |
0d4792f7 AM |
7574 | retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms, |
7575 | rel, input_bfd); | |
951fd09b | 7576 | if (retval == 0) |
411e1bfb AM |
7577 | return FALSE; |
7578 | ||
7579 | if (toc_tls) | |
7580 | { | |
951fd09b | 7581 | tls_mask = *toc_tls; |
411e1bfb AM |
7582 | if (r_type == R_PPC64_TOC16_DS |
7583 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
7584 | { |
7585 | if (tls_mask != 0 | |
7586 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
7587 | goto toctprel; | |
7588 | } | |
411e1bfb | 7589 | else |
951fd09b AM |
7590 | { |
7591 | /* If we found a GD reloc pair, then we might be | |
7592 | doing a GD->IE transition. */ | |
7593 | if (retval == 2) | |
7594 | { | |
7595 | tls_gd = TLS_TPRELGD; | |
7596 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7597 | goto tls_get_addr_check; | |
7598 | } | |
7599 | else if (retval == 3) | |
7600 | { | |
7601 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7602 | goto tls_get_addr_check; | |
7603 | } | |
7604 | } | |
411e1bfb AM |
7605 | } |
7606 | } | |
7607 | break; | |
7608 | ||
7609 | case R_PPC64_GOT_TPREL16_DS: | |
7610 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
7611 | if (tls_mask != 0 |
7612 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 7613 | { |
81407a69 | 7614 | toctprel: |
411e1bfb AM |
7615 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
7616 | insn &= 31 << 21; | |
7617 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
7618 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
7619 | r_type = R_PPC64_TPREL16_HA; | |
0d4792f7 AM |
7620 | if (toc_symndx != 0) |
7621 | { | |
7622 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
7623 | /* We changed the symbol. Start over in order to | |
7624 | get h, sym, sec etc. right. */ | |
7625 | rel--; | |
7626 | continue; | |
7627 | } | |
7628 | else | |
7629 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7630 | } |
7631 | break; | |
7632 | ||
7633 | case R_PPC64_TLS: | |
951fd09b AM |
7634 | if (tls_mask != 0 |
7635 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb | 7636 | { |
50bc7936 | 7637 | bfd_vma rtra; |
411e1bfb | 7638 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
772119ce | 7639 | if ((insn & ((0x3f << 26) | (31 << 11))) |
411e1bfb AM |
7640 | == ((31 << 26) | (13 << 11))) |
7641 | rtra = insn & ((1 << 26) - (1 << 16)); | |
772119ce | 7642 | else if ((insn & ((0x3f << 26) | (31 << 16))) |
411e1bfb AM |
7643 | == ((31 << 26) | (13 << 16))) |
7644 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
7645 | else | |
7646 | abort (); | |
7647 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
7648 | /* add -> addi. */ | |
7649 | insn = 14 << 26; | |
7650 | else if ((insn & (31 << 1)) == 23 << 1 | |
7651 | && ((insn & (31 << 6)) < 14 << 6 | |
7652 | || ((insn & (31 << 6)) >= 16 << 6 | |
7653 | && (insn & (31 << 6)) < 24 << 6))) | |
7654 | /* load and store indexed -> dform. */ | |
7655 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
7656 | else if ((insn & (31 << 1)) == 21 << 1 | |
7657 | && (insn & (0x1a << 6)) == 0) | |
7658 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7659 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
7660 | | ((insn >> 6) & 1)); | |
7661 | else if ((insn & (31 << 1)) == 21 << 1 | |
7662 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
7663 | /* lwax -> lwa. */ | |
7664 | insn = (58 << 26) | 2; | |
7665 | else | |
7666 | abort (); | |
7667 | insn |= rtra; | |
7668 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
411e1bfb AM |
7669 | /* Was PPC64_TLS which sits on insn boundary, now |
7670 | PPC64_TPREL16_LO which is at insn+2. */ | |
7671 | rel->r_offset += 2; | |
0d4792f7 AM |
7672 | r_type = R_PPC64_TPREL16_LO; |
7673 | if (toc_symndx != 0) | |
7674 | { | |
7675 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
7676 | /* We changed the symbol. Start over in order to | |
7677 | get h, sym, sec etc. right. */ | |
7678 | rel--; | |
7679 | continue; | |
7680 | } | |
7681 | else | |
7682 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7683 | } |
7684 | break; | |
7685 | ||
411e1bfb AM |
7686 | case R_PPC64_GOT_TLSGD16_HI: |
7687 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
7688 | tls_gd = TLS_TPRELGD; |
7689 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7690 | goto tls_gdld_hi; | |
7691 | break; | |
7692 | ||
411e1bfb AM |
7693 | case R_PPC64_GOT_TLSLD16_HI: |
7694 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7695 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 7696 | { |
951fd09b AM |
7697 | tls_gdld_hi: |
7698 | if ((tls_mask & tls_gd) != 0) | |
7699 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7700 | + R_PPC64_GOT_TPREL16_DS); | |
7701 | else | |
411e1bfb | 7702 | { |
951fd09b AM |
7703 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7704 | rel->r_offset -= 2; | |
7705 | r_type = R_PPC64_NONE; | |
411e1bfb | 7706 | } |
951fd09b | 7707 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
7708 | } |
7709 | break; | |
7710 | ||
951fd09b AM |
7711 | case R_PPC64_GOT_TLSGD16: |
7712 | case R_PPC64_GOT_TLSGD16_LO: | |
7713 | tls_gd = TLS_TPRELGD; | |
7714 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7715 | goto tls_get_addr_check; | |
7716 | break; | |
411e1bfb | 7717 | |
951fd09b AM |
7718 | case R_PPC64_GOT_TLSLD16: |
7719 | case R_PPC64_GOT_TLSLD16_LO: | |
7720 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7721 | { | |
7722 | tls_get_addr_check: | |
7723 | if (rel + 1 < relend) | |
411e1bfb | 7724 | { |
951fd09b AM |
7725 | enum elf_ppc64_reloc_type r_type2; |
7726 | unsigned long r_symndx2; | |
7727 | struct elf_link_hash_entry *h2; | |
7728 | bfd_vma insn1, insn2, insn3; | |
7729 | bfd_vma offset; | |
7730 | ||
7731 | /* The next instruction should be a call to | |
7732 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4ce794b7 | 7733 | r_type2 = ELF64_R_TYPE (rel[1].r_info); |
951fd09b AM |
7734 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); |
7735 | if (r_symndx2 < symtab_hdr->sh_info | |
7736 | || (r_type2 != R_PPC64_REL14 | |
7737 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
7738 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
7739 | && r_type2 != R_PPC64_REL24)) | |
7740 | break; | |
7741 | ||
7742 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
7743 | while (h2->root.type == bfd_link_hash_indirect | |
7744 | || h2->root.type == bfd_link_hash_warning) | |
7745 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
7746 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
7747 | break; | |
7748 | ||
7749 | /* OK, it checks out. Replace the call. */ | |
7750 | offset = rel[1].r_offset; | |
7751 | insn1 = bfd_get_32 (output_bfd, | |
7752 | contents + rel->r_offset - 2); | |
7753 | insn3 = bfd_get_32 (output_bfd, | |
7754 | contents + offset + 4); | |
7755 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 7756 | { |
951fd09b AM |
7757 | /* IE */ |
7758 | insn1 &= (1 << 26) - (1 << 2); | |
7759 | insn1 |= 58 << 26; /* ld */ | |
7760 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
7761 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
7762 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
7763 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7764 | + R_PPC64_GOT_TPREL16_DS); | |
7765 | else | |
7766 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
7767 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7768 | } |
7769 | else | |
951fd09b AM |
7770 | { |
7771 | /* LE */ | |
7772 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
7773 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7774 | if (tls_gd == 0) | |
7775 | { | |
7776 | /* Was an LD reloc. */ | |
7777 | r_symndx = 0; | |
e1918d23 AM |
7778 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
7779 | rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; | |
951fd09b | 7780 | } |
0d4792f7 AM |
7781 | else if (toc_symndx != 0) |
7782 | r_symndx = toc_symndx; | |
951fd09b AM |
7783 | r_type = R_PPC64_TPREL16_HA; |
7784 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7785 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
7786 | R_PPC64_TPREL16_LO); | |
7787 | rel[1].r_offset += 2; | |
7788 | } | |
7789 | if (insn3 == NOP | |
7790 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
7791 | { | |
7792 | insn3 = insn2; | |
7793 | insn2 = NOP; | |
7794 | rel[1].r_offset += 4; | |
7795 | } | |
7796 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
7797 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7798 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
0d4792f7 | 7799 | if (tls_gd == 0 || toc_symndx != 0) |
951fd09b | 7800 | { |
0d4792f7 AM |
7801 | /* We changed the symbol. Start over in order |
7802 | to get h, sym, sec etc. right. */ | |
951fd09b AM |
7803 | rel--; |
7804 | continue; | |
7805 | } | |
411e1bfb | 7806 | } |
411e1bfb | 7807 | } |
411e1bfb AM |
7808 | break; |
7809 | ||
7810 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
7811 | if (rel + 1 < relend |
7812 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
7813 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 7814 | { |
951fd09b AM |
7815 | if ((tls_mask & TLS_GD) == 0) |
7816 | { | |
7817 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
7818 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7819 | r_type = R_PPC64_TPREL64; | |
7820 | else | |
7821 | { | |
4ce794b7 | 7822 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
951fd09b AM |
7823 | r_type = R_PPC64_NONE; |
7824 | } | |
7825 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7826 | } | |
7827 | } | |
7828 | else | |
7829 | { | |
7830 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb | 7831 | { |
4ce794b7 | 7832 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
411e1bfb | 7833 | r_type = R_PPC64_NONE; |
951fd09b | 7834 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 7835 | } |
411e1bfb AM |
7836 | } |
7837 | break; | |
7838 | ||
7839 | case R_PPC64_TPREL64: | |
951fd09b | 7840 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
7841 | { |
7842 | r_type = R_PPC64_NONE; | |
7843 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7844 | } | |
7845 | break; | |
7846 | } | |
7847 | ||
7848 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 7849 | insn = 0; |
65f38f15 | 7850 | switch (r_type) |
5bd4f169 AM |
7851 | { |
7852 | default: | |
65f38f15 | 7853 | break; |
5bd4f169 | 7854 | |
65f38f15 AM |
7855 | /* Branch taken prediction relocations. */ |
7856 | case R_PPC64_ADDR14_BRTAKEN: | |
7857 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
7858 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
7859 | /* Fall thru. */ | |
65f38f15 | 7860 | |
86c76c7b | 7861 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
7862 | case R_PPC64_ADDR14_BRNTAKEN: |
7863 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
7864 | insn |= bfd_get_32 (output_bfd, |
7865 | contents + rel->r_offset) & ~(0x01 << 21); | |
96e0dda4 AM |
7866 | if (is_power4) |
7867 | { | |
7868 | /* Set 'a' bit. This is 0b00010 in BO field for branch | |
7869 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
7870 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
7871 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
7872 | insn |= 0x02 << 21; | |
7873 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
7874 | insn |= 0x08 << 21; | |
7875 | else | |
7876 | break; | |
7877 | } | |
65f38f15 | 7878 | else |
96e0dda4 | 7879 | { |
411e1bfb | 7880 | from = (rel->r_offset |
805fc799 AM |
7881 | + input_section->output_offset |
7882 | + input_section->output_section->vma); | |
7883 | ||
96e0dda4 | 7884 | /* Invert 'y' bit if not the default. */ |
411e1bfb | 7885 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) |
96e0dda4 AM |
7886 | insn ^= 0x01 << 21; |
7887 | } | |
86c76c7b | 7888 | |
4ce794b7 | 7889 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
65f38f15 | 7890 | break; |
5bd4f169 | 7891 | |
65f38f15 | 7892 | case R_PPC64_REL24: |
ad8e1ba5 AM |
7893 | /* Calls to functions with a different TOC, such as calls to |
7894 | shared objects, need to alter the TOC pointer. This is | |
7895 | done using a linkage stub. A REL24 branching to these | |
7896 | linkage stubs needs to be followed by a nop, as the nop | |
7897 | will be replaced with an instruction to restore the TOC | |
7898 | base pointer. */ | |
7899 | if (((h != NULL | |
7900 | && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL | |
7901 | && fdh->plt.plist != NULL) | |
7902 | || ((fdh = h, sec) != NULL | |
7903 | && sec->output_section != NULL | |
7904 | && (htab->stub_group[sec->id].toc_off | |
7905 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 7906 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
7907 | rel, htab)) != NULL |
7908 | && (stub_entry->stub_type == ppc_stub_plt_call | |
7909 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
7910 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 7911 | { |
b34976b6 | 7912 | bfd_boolean can_plt_call = 0; |
721956f4 | 7913 | |
411e1bfb | 7914 | if (rel->r_offset + 8 <= input_section->_cooked_size) |
41bd81ab | 7915 | { |
411e1bfb | 7916 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
721956f4 AM |
7917 | if (insn == NOP |
7918 | || insn == CROR_151515 || insn == CROR_313131) | |
41bd81ab | 7919 | { |
4ce794b7 | 7920 | bfd_put_32 (input_bfd, LD_R2_40R1, |
411e1bfb | 7921 | contents + rel->r_offset + 4); |
721956f4 | 7922 | can_plt_call = 1; |
41bd81ab | 7923 | } |
5bd4f169 | 7924 | } |
721956f4 AM |
7925 | |
7926 | if (!can_plt_call) | |
7927 | { | |
ad8e1ba5 AM |
7928 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7929 | { | |
7930 | /* If this is a plain branch rather than a branch | |
7931 | and link, don't require a nop. */ | |
7932 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
7933 | if ((insn & 1) == 0) | |
7934 | can_plt_call = 1; | |
7935 | } | |
6ab189d5 AM |
7936 | else if (h != NULL |
7937 | && strcmp (h->root.root.string, | |
7938 | ".__libc_start_main") == 0) | |
7939 | { | |
7940 | /* Allow crt1 branch to go via a toc adjusting stub. */ | |
7941 | can_plt_call = 1; | |
7942 | } | |
ad8e1ba5 AM |
7943 | else |
7944 | { | |
7945 | if (strcmp (input_section->output_section->name, | |
7946 | ".init") == 0 | |
7947 | || strcmp (input_section->output_section->name, | |
7948 | ".fini") == 0) | |
7949 | (*_bfd_error_handler) | |
7950 | (_("%s(%s+0x%lx): automatic multiple TOCs " | |
7951 | "not supported using your crt files; " | |
7952 | "recompile with -mminimal-toc or upgrade gcc"), | |
7953 | bfd_archive_filename (input_bfd), | |
7954 | input_section->name, | |
7955 | (long) rel->r_offset); | |
7956 | else | |
7957 | (*_bfd_error_handler) | |
7958 | (_("%s(%s+0x%lx): sibling call optimization to `%s' " | |
7959 | "does not allow automatic multiple TOCs; " | |
7960 | "recompile with -mminimal-toc or " | |
7961 | "-fno-optimize-sibling-calls, " | |
7962 | "or make `%s' extern"), | |
7963 | bfd_archive_filename (input_bfd), | |
7964 | input_section->name, | |
7965 | (long) rel->r_offset, | |
7966 | sym_name, | |
7967 | sym_name); | |
7968 | bfd_set_error (bfd_error_bad_value); | |
7969 | ret = FALSE; | |
7970 | } | |
721956f4 AM |
7971 | } |
7972 | ||
7973 | if (can_plt_call) | |
7974 | { | |
7975 | relocation = (stub_entry->stub_offset | |
7976 | + stub_entry->stub_sec->output_offset | |
7977 | + stub_entry->stub_sec->output_section->vma); | |
ad8e1ba5 AM |
7978 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7979 | unresolved_reloc = FALSE; | |
721956f4 | 7980 | } |
5bd4f169 | 7981 | } |
e86ce104 AM |
7982 | |
7983 | if (h != NULL | |
7984 | && h->root.type == bfd_link_hash_undefweak | |
721956f4 | 7985 | && relocation == 0 |
411e1bfb | 7986 | && rel->r_addend == 0) |
e86ce104 | 7987 | { |
721956f4 AM |
7988 | /* Tweak calls to undefined weak functions to point at a |
7989 | blr. We can thus call a weak function without first | |
7990 | checking whether the function is defined. We have a | |
7991 | blr at the end of .sfpr. */ | |
805fc799 | 7992 | BFD_ASSERT (htab->sfpr->_raw_size != 0); |
721956f4 AM |
7993 | relocation = (htab->sfpr->_raw_size - 4 |
7994 | + htab->sfpr->output_offset | |
7995 | + htab->sfpr->output_section->vma); | |
411e1bfb | 7996 | from = (rel->r_offset |
721956f4 AM |
7997 | + input_section->output_offset |
7998 | + input_section->output_section->vma); | |
805fc799 | 7999 | |
721956f4 AM |
8000 | /* But let's not be silly about it. If the blr isn't in |
8001 | reach, just go to the next instruction. */ | |
805fc799 AM |
8002 | if (relocation - from + (1 << 25) >= (1 << 26) |
8003 | || htab->sfpr->_raw_size == 0) | |
721956f4 | 8004 | relocation = from + 4; |
e86ce104 | 8005 | } |
65f38f15 AM |
8006 | break; |
8007 | } | |
5bd4f169 | 8008 | |
65f38f15 | 8009 | /* Set `addend'. */ |
411e1bfb AM |
8010 | tls_type = 0; |
8011 | addend = rel->r_addend; | |
65f38f15 AM |
8012 | switch (r_type) |
8013 | { | |
8014 | default: | |
8015 | (*_bfd_error_handler) | |
8016 | (_("%s: unknown relocation type %d for symbol %s"), | |
8017 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
5bd4f169 | 8018 | |
65f38f15 | 8019 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8020 | ret = FALSE; |
65f38f15 | 8021 | continue; |
5bd4f169 | 8022 | |
65f38f15 | 8023 | case R_PPC64_NONE: |
411e1bfb | 8024 | case R_PPC64_TLS: |
04c9666a AM |
8025 | case R_PPC64_GNU_VTINHERIT: |
8026 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 8027 | continue; |
5bd4f169 AM |
8028 | |
8029 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
8030 | address in the GOT as relocation value instead of the | |
411e1bfb | 8031 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 8032 | symbol and put the symbol value there. */ |
411e1bfb AM |
8033 | case R_PPC64_GOT_TLSGD16: |
8034 | case R_PPC64_GOT_TLSGD16_LO: | |
8035 | case R_PPC64_GOT_TLSGD16_HI: | |
8036 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 8037 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
8038 | goto dogot; |
8039 | ||
8040 | case R_PPC64_GOT_TLSLD16: | |
8041 | case R_PPC64_GOT_TLSLD16_LO: | |
8042 | case R_PPC64_GOT_TLSLD16_HI: | |
8043 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 8044 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
8045 | goto dogot; |
8046 | ||
8047 | case R_PPC64_GOT_TPREL16_DS: | |
8048 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8049 | case R_PPC64_GOT_TPREL16_HI: | |
8050 | case R_PPC64_GOT_TPREL16_HA: | |
8051 | tls_type = TLS_TLS | TLS_TPREL; | |
8052 | goto dogot; | |
8053 | ||
8054 | case R_PPC64_GOT_DTPREL16_DS: | |
8055 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8056 | case R_PPC64_GOT_DTPREL16_HI: | |
8057 | case R_PPC64_GOT_DTPREL16_HA: | |
8058 | tls_type = TLS_TLS | TLS_DTPREL; | |
8059 | goto dogot; | |
8060 | ||
65f38f15 AM |
8061 | case R_PPC64_GOT16: |
8062 | case R_PPC64_GOT16_LO: | |
8063 | case R_PPC64_GOT16_HI: | |
8064 | case R_PPC64_GOT16_HA: | |
8065 | case R_PPC64_GOT16_DS: | |
8066 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 8067 | dogot: |
5bd4f169 AM |
8068 | { |
8069 | /* Relocation is to the entry for this symbol in the global | |
8070 | offset table. */ | |
e717da7e | 8071 | asection *got; |
d881513a | 8072 | bfd_vma *offp; |
5bd4f169 | 8073 | bfd_vma off; |
d881513a | 8074 | unsigned long indx = 0; |
65f38f15 | 8075 | |
d881513a AM |
8076 | if (tls_type == (TLS_TLS | TLS_LD) |
8077 | && (h == NULL | |
8078 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
e717da7e | 8079 | offp = &ppc64_tlsld_got (input_bfd)->offset; |
411e1bfb | 8080 | else |
5bd4f169 | 8081 | { |
d881513a | 8082 | struct got_entry *ent; |
5bd4f169 | 8083 | |
d881513a AM |
8084 | if (h != NULL) |
8085 | { | |
8086 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
f4656909 | 8087 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
d881513a | 8088 | || (info->shared |
586119b3 | 8089 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
d881513a AM |
8090 | /* This is actually a static link, or it is a |
8091 | -Bsymbolic link and the symbol is defined | |
8092 | locally, or the symbol was forced to be local | |
8093 | because of a version file. */ | |
8094 | ; | |
8095 | else | |
8096 | { | |
8097 | indx = h->dynindx; | |
8098 | unresolved_reloc = FALSE; | |
8099 | } | |
8100 | ent = h->got.glist; | |
8101 | } | |
411e1bfb | 8102 | else |
5bd4f169 | 8103 | { |
d881513a AM |
8104 | if (local_got_ents == NULL) |
8105 | abort (); | |
8106 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 8107 | } |
d881513a AM |
8108 | |
8109 | for (; ent != NULL; ent = ent->next) | |
8110 | if (ent->addend == rel->r_addend | |
e717da7e | 8111 | && ent->owner == input_bfd |
d881513a AM |
8112 | && ent->tls_type == tls_type) |
8113 | break; | |
8114 | if (ent == NULL) | |
8115 | abort (); | |
8116 | offp = &ent->got.offset; | |
5bd4f169 | 8117 | } |
411e1bfb | 8118 | |
e717da7e AM |
8119 | got = ppc64_elf_tdata (input_bfd)->got; |
8120 | if (got == NULL) | |
8121 | abort (); | |
8122 | ||
411e1bfb AM |
8123 | /* The offset must always be a multiple of 8. We use the |
8124 | least significant bit to record whether we have already | |
8125 | processed this entry. */ | |
d881513a | 8126 | off = *offp; |
411e1bfb AM |
8127 | if ((off & 1) != 0) |
8128 | off &= ~1; | |
5bd4f169 AM |
8129 | else |
8130 | { | |
411e1bfb AM |
8131 | /* Generate relocs for the dynamic linker, except in |
8132 | the case of TLSLD where we'll use one entry per | |
8133 | module. */ | |
e717da7e AM |
8134 | asection *relgot = ppc64_elf_tdata (input_bfd)->relgot; |
8135 | ||
d881513a | 8136 | *offp = off | 1; |
4e795f50 AM |
8137 | if ((info->shared || indx != 0) |
8138 | && (h == NULL | |
8139 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8140 | || h->root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 8141 | { |
e717da7e AM |
8142 | outrel.r_offset = (got->output_section->vma |
8143 | + got->output_offset | |
411e1bfb | 8144 | + off); |
81407a69 | 8145 | outrel.r_addend = rel->r_addend; |
d881513a | 8146 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 8147 | { |
411e1bfb | 8148 | outrel.r_addend = 0; |
e515b051 | 8149 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
8150 | if (tls_type == (TLS_TLS | TLS_GD)) |
8151 | { | |
e717da7e AM |
8152 | loc = relgot->contents; |
8153 | loc += (relgot->reloc_count++ | |
d881513a AM |
8154 | * sizeof (Elf64_External_Rela)); |
8155 | bfd_elf64_swap_reloca_out (output_bfd, | |
8156 | &outrel, loc); | |
e515b051 | 8157 | outrel.r_offset += 8; |
81407a69 | 8158 | outrel.r_addend = rel->r_addend; |
d881513a AM |
8159 | outrel.r_info |
8160 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 8161 | } |
411e1bfb | 8162 | } |
951fd09b | 8163 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 8164 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 8165 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
8166 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
8167 | else if (indx == 0) | |
81407a69 AM |
8168 | { |
8169 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
8170 | ||
8171 | /* Write the .got section contents for the sake | |
8172 | of prelink. */ | |
e717da7e | 8173 | loc = got->contents + off; |
23fbd6fa JJ |
8174 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
8175 | loc); | |
81407a69 | 8176 | } |
411e1bfb AM |
8177 | else |
8178 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
8179 | |
8180 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
8181 | { |
8182 | outrel.r_addend += relocation; | |
8183 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 8184 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 8185 | } |
e717da7e AM |
8186 | loc = relgot->contents; |
8187 | loc += (relgot->reloc_count++ | |
411e1bfb AM |
8188 | * sizeof (Elf64_External_Rela)); |
8189 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
8190 | } | |
8191 | ||
ad8e1ba5 | 8192 | /* Init the .got section contents here if we're not |
81407a69 | 8193 | emitting a reloc. */ |
d881513a | 8194 | else |
411e1bfb | 8195 | { |
d881513a | 8196 | relocation += rel->r_addend; |
7b609f53 AM |
8197 | if (tls_type == (TLS_TLS | TLS_LD)) |
8198 | relocation = 1; | |
8199 | else if (tls_type != 0) | |
411e1bfb | 8200 | { |
e1918d23 | 8201 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 8202 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 8203 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 8204 | |
7b609f53 AM |
8205 | if (tls_type == (TLS_TLS | TLS_GD)) |
8206 | { | |
8207 | bfd_put_64 (output_bfd, relocation, | |
e717da7e | 8208 | got->contents + off + 8); |
7b609f53 AM |
8209 | relocation = 1; |
8210 | } | |
411e1bfb | 8211 | } |
7b609f53 | 8212 | |
411e1bfb | 8213 | bfd_put_64 (output_bfd, relocation, |
e717da7e | 8214 | got->contents + off); |
5bd4f169 AM |
8215 | } |
8216 | } | |
8217 | ||
65f38f15 AM |
8218 | if (off >= (bfd_vma) -2) |
8219 | abort (); | |
8220 | ||
e717da7e | 8221 | relocation = got->output_offset + off; |
65f38f15 | 8222 | |
5bd4f169 | 8223 | /* TOC base (r2) is TOC start plus 0x8000. */ |
e717da7e | 8224 | addend = -TOC_BASE_OFF; |
5bd4f169 | 8225 | } |
65f38f15 AM |
8226 | break; |
8227 | ||
8228 | case R_PPC64_PLT16_HA: | |
8229 | case R_PPC64_PLT16_HI: | |
8230 | case R_PPC64_PLT16_LO: | |
8231 | case R_PPC64_PLT32: | |
8232 | case R_PPC64_PLT64: | |
8233 | /* Relocation is to the entry for this symbol in the | |
8234 | procedure linkage table. */ | |
8235 | ||
8236 | /* Resolve a PLT reloc against a local symbol directly, | |
8237 | without using the procedure linkage table. */ | |
8238 | if (h == NULL) | |
8239 | break; | |
8240 | ||
411e1bfb AM |
8241 | /* It's possible that we didn't make a PLT entry for this |
8242 | symbol. This happens when statically linking PIC code, | |
8243 | or when using -Bsymbolic. Go find a match if there is a | |
8244 | PLT entry. */ | |
4ce794b7 | 8245 | if (htab->plt != NULL) |
65f38f15 | 8246 | { |
411e1bfb AM |
8247 | struct plt_entry *ent; |
8248 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
8249 | if (ent->addend == rel->r_addend | |
8250 | && ent->plt.offset != (bfd_vma) -1) | |
8251 | { | |
4ce794b7 AM |
8252 | relocation = (htab->plt->output_section->vma |
8253 | + htab->plt->output_offset | |
411e1bfb AM |
8254 | + ent->plt.offset); |
8255 | unresolved_reloc = FALSE; | |
8256 | } | |
65f38f15 | 8257 | } |
65f38f15 | 8258 | break; |
5bd4f169 | 8259 | |
0b13192e AM |
8260 | case R_PPC64_TOC: |
8261 | /* Relocation value is TOC base. */ | |
8262 | relocation = TOCstart; | |
8263 | if (r_symndx == 0) | |
8264 | relocation += htab->stub_group[input_section->id].toc_off; | |
8517fae7 AM |
8265 | else if (unresolved_reloc) |
8266 | ; | |
8267 | else if (sec != NULL && sec->id <= htab->top_id) | |
0b13192e AM |
8268 | relocation += htab->stub_group[sec->id].toc_off; |
8269 | else | |
8270 | unresolved_reloc = TRUE; | |
8271 | goto dodyn2; | |
8272 | ||
5bd4f169 AM |
8273 | /* TOC16 relocs. We want the offset relative to the TOC base, |
8274 | which is the address of the start of the TOC plus 0x8000. | |
8275 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
8276 | in this order. */ | |
65f38f15 AM |
8277 | case R_PPC64_TOC16: |
8278 | case R_PPC64_TOC16_LO: | |
8279 | case R_PPC64_TOC16_HI: | |
8280 | case R_PPC64_TOC16_DS: | |
8281 | case R_PPC64_TOC16_LO_DS: | |
8282 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 8283 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
8284 | break; |
8285 | ||
8286 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
8287 | case R_PPC64_SECTOFF: |
8288 | case R_PPC64_SECTOFF_LO: | |
8289 | case R_PPC64_SECTOFF_HI: | |
8290 | case R_PPC64_SECTOFF_DS: | |
8291 | case R_PPC64_SECTOFF_LO_DS: | |
8292 | case R_PPC64_SECTOFF_HA: | |
4ce794b7 | 8293 | if (sec != NULL) |
65f38f15 | 8294 | addend -= sec->output_section->vma; |
5bd4f169 AM |
8295 | break; |
8296 | ||
721956f4 AM |
8297 | case R_PPC64_REL14: |
8298 | case R_PPC64_REL14_BRNTAKEN: | |
8299 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
8300 | case R_PPC64_REL24: |
8301 | break; | |
8302 | ||
411e1bfb AM |
8303 | case R_PPC64_TPREL16: |
8304 | case R_PPC64_TPREL16_LO: | |
8305 | case R_PPC64_TPREL16_HI: | |
8306 | case R_PPC64_TPREL16_HA: | |
8307 | case R_PPC64_TPREL16_DS: | |
8308 | case R_PPC64_TPREL16_LO_DS: | |
8309 | case R_PPC64_TPREL16_HIGHER: | |
8310 | case R_PPC64_TPREL16_HIGHERA: | |
8311 | case R_PPC64_TPREL16_HIGHEST: | |
8312 | case R_PPC64_TPREL16_HIGHESTA: | |
e1918d23 | 8313 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
8314 | if (info->shared) |
8315 | /* The TPREL16 relocs shouldn't really be used in shared | |
8316 | libs as they will result in DT_TEXTREL being set, but | |
8317 | support them anyway. */ | |
8318 | goto dodyn; | |
8319 | break; | |
8320 | ||
8321 | case R_PPC64_DTPREL16: | |
8322 | case R_PPC64_DTPREL16_LO: | |
8323 | case R_PPC64_DTPREL16_HI: | |
8324 | case R_PPC64_DTPREL16_HA: | |
8325 | case R_PPC64_DTPREL16_DS: | |
8326 | case R_PPC64_DTPREL16_LO_DS: | |
8327 | case R_PPC64_DTPREL16_HIGHER: | |
8328 | case R_PPC64_DTPREL16_HIGHERA: | |
8329 | case R_PPC64_DTPREL16_HIGHEST: | |
8330 | case R_PPC64_DTPREL16_HIGHESTA: | |
e1918d23 | 8331 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
8332 | break; |
8333 | ||
e515b051 AM |
8334 | case R_PPC64_DTPMOD64: |
8335 | relocation = 1; | |
8336 | addend = 0; | |
8337 | goto dodyn; | |
8338 | ||
411e1bfb | 8339 | case R_PPC64_TPREL64: |
e1918d23 | 8340 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
411e1bfb AM |
8341 | goto dodyn; |
8342 | ||
8343 | case R_PPC64_DTPREL64: | |
e1918d23 | 8344 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
411e1bfb AM |
8345 | /* Fall thru */ |
8346 | ||
65f38f15 AM |
8347 | /* Relocations that may need to be propagated if this is a |
8348 | dynamic object. */ | |
04c9666a | 8349 | case R_PPC64_REL30: |
65f38f15 AM |
8350 | case R_PPC64_REL32: |
8351 | case R_PPC64_REL64: | |
8352 | case R_PPC64_ADDR14: | |
8353 | case R_PPC64_ADDR14_BRNTAKEN: | |
8354 | case R_PPC64_ADDR14_BRTAKEN: | |
8355 | case R_PPC64_ADDR16: | |
8356 | case R_PPC64_ADDR16_DS: | |
8357 | case R_PPC64_ADDR16_HA: | |
8358 | case R_PPC64_ADDR16_HI: | |
8359 | case R_PPC64_ADDR16_HIGHER: | |
8360 | case R_PPC64_ADDR16_HIGHERA: | |
8361 | case R_PPC64_ADDR16_HIGHEST: | |
8362 | case R_PPC64_ADDR16_HIGHESTA: | |
8363 | case R_PPC64_ADDR16_LO: | |
8364 | case R_PPC64_ADDR16_LO_DS: | |
8365 | case R_PPC64_ADDR24: | |
65f38f15 AM |
8366 | case R_PPC64_ADDR32: |
8367 | case R_PPC64_ADDR64: | |
8368 | case R_PPC64_UADDR16: | |
8369 | case R_PPC64_UADDR32: | |
8370 | case R_PPC64_UADDR64: | |
ec338859 AM |
8371 | /* r_symndx will be zero only for relocs against symbols |
8372 | from removed linkonce sections, or sections discarded by | |
8373 | a linker script. */ | |
411e1bfb | 8374 | dodyn: |
5d1634d7 AM |
8375 | if (r_symndx == 0) |
8376 | break; | |
8377 | /* Fall thru. */ | |
8378 | ||
0b13192e | 8379 | dodyn2: |
5d1634d7 | 8380 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
8381 | break; |
8382 | ||
41bd81ab AM |
8383 | if (NO_OPD_RELOCS && is_opd) |
8384 | break; | |
8385 | ||
65f38f15 | 8386 | if ((info->shared |
4e795f50 AM |
8387 | && (h == NULL |
8388 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8389 | || h->root.type != bfd_link_hash_undefweak) | |
411e1bfb | 8390 | && (MUST_BE_DYN_RELOC (r_type) |
f6c52c13 | 8391 | || !SYMBOL_CALLS_LOCAL (info, h))) |
f4656909 AM |
8392 | || (ELIMINATE_COPY_RELOCS |
8393 | && !info->shared | |
65f38f15 AM |
8394 | && h != NULL |
8395 | && h->dynindx != -1 | |
8396 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
8397 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
8398 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
65f38f15 AM |
8399 | { |
8400 | Elf_Internal_Rela outrel; | |
b34976b6 | 8401 | bfd_boolean skip, relocate; |
65f38f15 | 8402 | asection *sreloc; |
947216bf | 8403 | bfd_byte *loc; |
1cf1f670 | 8404 | bfd_vma out_off; |
65f38f15 AM |
8405 | |
8406 | /* When generating a dynamic object, these relocations | |
8407 | are copied into the output file to be resolved at run | |
8408 | time. */ | |
8409 | ||
b34976b6 AM |
8410 | skip = FALSE; |
8411 | relocate = FALSE; | |
65f38f15 | 8412 | |
1cf1f670 AM |
8413 | out_off = _bfd_elf_section_offset (output_bfd, info, |
8414 | input_section, rel->r_offset); | |
8415 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 8416 | skip = TRUE; |
1cf1f670 | 8417 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 8418 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
8419 | out_off += (input_section->output_section->vma |
8420 | + input_section->output_offset); | |
8421 | outrel.r_offset = out_off; | |
411e1bfb | 8422 | outrel.r_addend = rel->r_addend; |
65f38f15 | 8423 | |
1cf1f670 AM |
8424 | /* Optimize unaligned reloc use. */ |
8425 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
8426 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
8427 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
8428 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
8429 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
8430 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
8431 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
8432 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
8433 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
8434 | ||
65f38f15 | 8435 | if (skip) |
0bb2d96a | 8436 | memset (&outrel, 0, sizeof outrel); |
f6c52c13 | 8437 | else if (!SYMBOL_REFERENCES_LOCAL (info, h) |
0b13192e AM |
8438 | && !is_opd |
8439 | && r_type != R_PPC64_TOC) | |
0bb2d96a | 8440 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); |
65f38f15 AM |
8441 | else |
8442 | { | |
41bd81ab AM |
8443 | /* This symbol is local, or marked to become local, |
8444 | or this is an opd section reloc which must point | |
8445 | at a local function. */ | |
65f38f15 | 8446 | outrel.r_addend += relocation; |
e86ce104 | 8447 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 8448 | { |
3fad3c7c | 8449 | if (is_opd && h != NULL) |
afbe61cf AM |
8450 | { |
8451 | /* Lie about opd entries. This case occurs | |
8452 | when building shared libraries and we | |
8453 | reference a function in another shared | |
3fad3c7c AM |
8454 | lib. The same thing happens for a weak |
8455 | definition in an application that's | |
8456 | overridden by a strong definition in a | |
8457 | shared lib. (I believe this is a generic | |
8458 | bug in binutils handling of weak syms.) | |
8459 | In these cases we won't use the opd | |
1e2f5b6e | 8460 | entry in this lib. */ |
b34976b6 | 8461 | unresolved_reloc = FALSE; |
afbe61cf | 8462 | } |
65f38f15 | 8463 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
8464 | |
8465 | /* We need to relocate .opd contents for ld.so. | |
8466 | Prelink also wants simple and consistent rules | |
8467 | for relocs. This make all RELATIVE relocs have | |
8468 | *r_offset equal to r_addend. */ | |
8469 | relocate = TRUE; | |
65f38f15 AM |
8470 | } |
8471 | else | |
8472 | { | |
8473 | long indx = 0; | |
8474 | ||
41bd81ab | 8475 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
8476 | ; |
8477 | else if (sec == NULL || sec->owner == NULL) | |
8478 | { | |
8479 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8480 | return FALSE; |
65f38f15 AM |
8481 | } |
8482 | else | |
8483 | { | |
8484 | asection *osec; | |
8485 | ||
8486 | osec = sec->output_section; | |
8487 | indx = elf_section_data (osec)->dynindx; | |
8488 | ||
8489 | /* We are turning this relocation into one | |
8490 | against a section symbol, so subtract out | |
8491 | the output section's address but not the | |
8492 | offset of the input section in the output | |
8493 | section. */ | |
8494 | outrel.r_addend -= osec->vma; | |
8495 | } | |
8496 | ||
8497 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
8498 | } | |
8499 | } | |
8500 | ||
8501 | sreloc = elf_section_data (input_section)->sreloc; | |
8502 | if (sreloc == NULL) | |
8503 | abort (); | |
8504 | ||
947216bf AM |
8505 | loc = sreloc->contents; |
8506 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
8507 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
8508 | ||
8509 | /* If this reloc is against an external symbol, it will | |
8510 | be computed at runtime, so there's no need to do | |
81407a69 AM |
8511 | anything now. However, for the sake of prelink ensure |
8512 | that the section contents are a known value. */ | |
65f38f15 | 8513 | if (! relocate) |
81407a69 AM |
8514 | { |
8515 | unresolved_reloc = FALSE; | |
8516 | /* The value chosen here is quite arbitrary as ld.so | |
8517 | ignores section contents except for the special | |
8518 | case of .opd where the contents might be accessed | |
8519 | before relocation. Choose zero, as that won't | |
8520 | cause reloc overflow. */ | |
8521 | relocation = 0; | |
8522 | addend = 0; | |
8523 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
8524 | to improve backward compatibility with older | |
8525 | versions of ld. */ | |
8526 | if (r_type == R_PPC64_ADDR64) | |
8527 | addend = outrel.r_addend; | |
8528 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
4ce794b7 | 8529 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
000732f7 AM |
8530 | addend = (input_section->output_section->vma |
8531 | + input_section->output_offset | |
8532 | + rel->r_offset); | |
81407a69 | 8533 | } |
65f38f15 | 8534 | } |
5bd4f169 AM |
8535 | break; |
8536 | ||
65f38f15 AM |
8537 | case R_PPC64_COPY: |
8538 | case R_PPC64_GLOB_DAT: | |
8539 | case R_PPC64_JMP_SLOT: | |
8540 | case R_PPC64_RELATIVE: | |
8541 | /* We shouldn't ever see these dynamic relocs in relocatable | |
8542 | files. */ | |
ae9a127f | 8543 | /* Fall through. */ |
65f38f15 AM |
8544 | |
8545 | case R_PPC64_PLTGOT16: | |
8546 | case R_PPC64_PLTGOT16_DS: | |
8547 | case R_PPC64_PLTGOT16_HA: | |
8548 | case R_PPC64_PLTGOT16_HI: | |
8549 | case R_PPC64_PLTGOT16_LO: | |
8550 | case R_PPC64_PLTGOT16_LO_DS: | |
8551 | case R_PPC64_PLTREL32: | |
8552 | case R_PPC64_PLTREL64: | |
8553 | /* These ones haven't been implemented yet. */ | |
8554 | ||
8555 | (*_bfd_error_handler) | |
7b609f53 | 8556 | (_("%s: relocation %s is not supported for symbol %s."), |
65f38f15 | 8557 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8558 | ppc64_elf_howto_table[r_type]->name, sym_name); |
5bd4f169 AM |
8559 | |
8560 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8561 | ret = FALSE; |
5bd4f169 | 8562 | continue; |
65f38f15 | 8563 | } |
5bd4f169 | 8564 | |
65f38f15 AM |
8565 | /* Do any further special processing. */ |
8566 | switch (r_type) | |
8567 | { | |
8568 | default: | |
8569 | break; | |
8570 | ||
8571 | case R_PPC64_ADDR16_HA: | |
8572 | case R_PPC64_ADDR16_HIGHERA: | |
8573 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
8574 | case R_PPC64_GOT16_HA: |
8575 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
8576 | case R_PPC64_PLT16_HA: |
8577 | case R_PPC64_TOC16_HA: | |
8578 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
8579 | case R_PPC64_TPREL16_HA: |
8580 | case R_PPC64_DTPREL16_HA: | |
8581 | case R_PPC64_GOT_TLSGD16_HA: | |
8582 | case R_PPC64_GOT_TLSLD16_HA: | |
8583 | case R_PPC64_GOT_TPREL16_HA: | |
8584 | case R_PPC64_GOT_DTPREL16_HA: | |
8585 | case R_PPC64_TPREL16_HIGHER: | |
8586 | case R_PPC64_TPREL16_HIGHERA: | |
8587 | case R_PPC64_TPREL16_HIGHEST: | |
8588 | case R_PPC64_TPREL16_HIGHESTA: | |
8589 | case R_PPC64_DTPREL16_HIGHER: | |
8590 | case R_PPC64_DTPREL16_HIGHERA: | |
8591 | case R_PPC64_DTPREL16_HIGHEST: | |
8592 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
8593 | /* It's just possible that this symbol is a weak symbol |
8594 | that's not actually defined anywhere. In that case, | |
8595 | 'sec' would be NULL, and we should leave the symbol | |
8596 | alone (it will be set to zero elsewhere in the link). */ | |
8597 | if (sec != NULL) | |
e515b051 AM |
8598 | /* Add 0x10000 if sign bit in 0:15 is set. |
8599 | Bits 0:15 are not used. */ | |
8600 | addend += 0x8000; | |
65f38f15 AM |
8601 | break; |
8602 | ||
8603 | case R_PPC64_ADDR16_DS: | |
8604 | case R_PPC64_ADDR16_LO_DS: | |
8605 | case R_PPC64_GOT16_DS: | |
8606 | case R_PPC64_GOT16_LO_DS: | |
8607 | case R_PPC64_PLT16_LO_DS: | |
8608 | case R_PPC64_SECTOFF_DS: | |
8609 | case R_PPC64_SECTOFF_LO_DS: | |
8610 | case R_PPC64_TOC16_DS: | |
8611 | case R_PPC64_TOC16_LO_DS: | |
8612 | case R_PPC64_PLTGOT16_DS: | |
8613 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
8614 | case R_PPC64_GOT_TPREL16_DS: |
8615 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8616 | case R_PPC64_GOT_DTPREL16_DS: | |
8617 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8618 | case R_PPC64_TPREL16_DS: | |
8619 | case R_PPC64_TPREL16_LO_DS: | |
8620 | case R_PPC64_DTPREL16_DS: | |
8621 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
8622 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
8623 | mask = 3; | |
8624 | /* If this reloc is against an lq insn, then the value must be | |
8625 | a multiple of 16. This is somewhat of a hack, but the | |
8626 | "correct" way to do this by defining _DQ forms of all the | |
8627 | _DS relocs bloats all reloc switches in this file. It | |
8628 | doesn't seem to make much sense to use any of these relocs | |
8629 | in data, so testing the insn should be safe. */ | |
494dac0c | 8630 | if ((insn & (0x3f << 26)) == (56u << 26)) |
adadcc0c AM |
8631 | mask = 15; |
8632 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
8633 | { |
8634 | (*_bfd_error_handler) | |
adadcc0c | 8635 | (_("%s: error: relocation %s not a multiple of %d"), |
65f38f15 | 8636 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8637 | ppc64_elf_howto_table[r_type]->name, |
adadcc0c | 8638 | mask + 1); |
65f38f15 | 8639 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8640 | ret = FALSE; |
65f38f15 AM |
8641 | continue; |
8642 | } | |
8643 | break; | |
721956f4 AM |
8644 | |
8645 | case R_PPC64_REL14: | |
8646 | case R_PPC64_REL14_BRNTAKEN: | |
8647 | case R_PPC64_REL14_BRTAKEN: | |
8648 | max_br_offset = 1 << 15; | |
8649 | goto branch_check; | |
8650 | ||
8651 | case R_PPC64_REL24: | |
8652 | max_br_offset = 1 << 25; | |
8653 | ||
8654 | branch_check: | |
ad8e1ba5 AM |
8655 | /* If the branch is out of reach or the TOC register needs |
8656 | adjusting, then redirect the call to the local stub for | |
8657 | this function. */ | |
411e1bfb | 8658 | from = (rel->r_offset |
721956f4 AM |
8659 | + input_section->output_offset |
8660 | + input_section->output_section->vma); | |
ad8e1ba5 AM |
8661 | if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset |
8662 | || (sec != NULL | |
8663 | && sec->output_section != NULL | |
8f3bab57 | 8664 | && sec->id <= htab->top_id |
ad8e1ba5 AM |
8665 | && (htab->stub_group[sec->id].toc_off |
8666 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 AM |
8667 | && (stub_entry = ppc_get_stub_entry (input_section, sec, h, |
8668 | rel, htab)) != NULL) | |
8669 | { | |
8670 | /* Munge up the value and addend so that we call the stub | |
8671 | rather than the procedure directly. */ | |
8672 | relocation = (stub_entry->stub_offset | |
8673 | + stub_entry->stub_sec->output_offset | |
8674 | + stub_entry->stub_sec->output_section->vma); | |
8675 | addend = 0; | |
8676 | } | |
8677 | break; | |
5bd4f169 AM |
8678 | } |
8679 | ||
239e1f3a AM |
8680 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
8681 | because such sections are not SEC_ALLOC and thus ld.so will | |
8682 | not process them. */ | |
65f38f15 | 8683 | if (unresolved_reloc |
239e1f3a | 8684 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
65f38f15 | 8685 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
9c07fe7c AM |
8686 | { |
8687 | (*_bfd_error_handler) | |
7b609f53 | 8688 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
9c07fe7c AM |
8689 | bfd_archive_filename (input_bfd), |
8690 | bfd_get_section_name (input_bfd, input_section), | |
8691 | (long) rel->r_offset, | |
7b609f53 | 8692 | ppc64_elf_howto_table[(int) r_type]->name, |
9c07fe7c | 8693 | h->root.root.string); |
b34976b6 | 8694 | ret = FALSE; |
9c07fe7c | 8695 | } |
5bd4f169 | 8696 | |
65f38f15 | 8697 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
8698 | input_bfd, |
8699 | input_section, | |
8700 | contents, | |
411e1bfb | 8701 | rel->r_offset, |
5bd4f169 AM |
8702 | relocation, |
8703 | addend); | |
8704 | ||
ef60b7ff | 8705 | if (r != bfd_reloc_ok) |
5bd4f169 | 8706 | { |
cd27b276 AM |
8707 | if (sym_name == NULL) |
8708 | sym_name = "(null)"; | |
8709 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 8710 | { |
cd27b276 AM |
8711 | if (warned) |
8712 | continue; | |
8713 | if (h != NULL | |
8714 | && h->root.type == bfd_link_hash_undefweak | |
4ce794b7 | 8715 | && ppc64_elf_howto_table[r_type]->pc_relative) |
5bd4f169 AM |
8716 | { |
8717 | /* Assume this is a call protected by other code that | |
8718 | detects the symbol is undefined. If this is the case, | |
8719 | we can safely ignore the overflow. If not, the | |
8720 | program is hosed anyway, and a little warning isn't | |
8721 | going to help. */ | |
8722 | ||
8723 | continue; | |
8724 | } | |
8725 | ||
ef60b7ff | 8726 | if (!((*info->callbacks->reloc_overflow) |
4ce794b7 | 8727 | (info, sym_name, ppc64_elf_howto_table[r_type]->name, |
411e1bfb | 8728 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 8729 | return FALSE; |
ef60b7ff AM |
8730 | } |
8731 | else | |
8732 | { | |
8733 | (*_bfd_error_handler) | |
7b609f53 | 8734 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
ef60b7ff AM |
8735 | bfd_archive_filename (input_bfd), |
8736 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 | 8737 | (long) rel->r_offset, |
4ce794b7 | 8738 | ppc64_elf_howto_table[r_type]->name, |
7b609f53 AM |
8739 | sym_name, |
8740 | (int) r); | |
b34976b6 | 8741 | ret = FALSE; |
ef60b7ff | 8742 | } |
5bd4f169 | 8743 | } |
5bd4f169 AM |
8744 | } |
8745 | ||
5bd4f169 AM |
8746 | return ret; |
8747 | } | |
8748 | ||
754021d0 AM |
8749 | /* Adjust the value of any local symbols in opd sections. */ |
8750 | ||
8751 | static bfd_boolean | |
8752 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, | |
8753 | const char *name ATTRIBUTE_UNUSED, | |
8754 | Elf_Internal_Sym *elfsym, | |
8755 | asection *input_sec, | |
8756 | struct elf_link_hash_entry *h) | |
8757 | { | |
8758 | long *adjust; | |
8759 | bfd_vma value; | |
8760 | ||
8761 | if (h != NULL | |
8762 | || input_sec == NULL | |
8763 | || ppc64_elf_section_data (input_sec) == NULL | |
8764 | || (adjust = ppc64_elf_section_data (input_sec)->opd.adjust) == NULL) | |
8765 | return TRUE; | |
8766 | ||
8767 | value = elfsym->st_value - input_sec->output_offset; | |
8768 | if (!info->relocatable) | |
8769 | value -= input_sec->output_section->vma; | |
8770 | ||
8771 | elfsym->st_value += adjust[value / 24]; | |
8772 | return TRUE; | |
8773 | } | |
8774 | ||
5bd4f169 AM |
8775 | /* Finish up dynamic symbol handling. We set the contents of various |
8776 | dynamic sections here. */ | |
8777 | ||
b34976b6 | 8778 | static bfd_boolean |
4ce794b7 AM |
8779 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
8780 | struct bfd_link_info *info, | |
8781 | struct elf_link_hash_entry *h, | |
8782 | Elf_Internal_Sym *sym) | |
5bd4f169 | 8783 | { |
65f38f15 | 8784 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
8785 | bfd *dynobj; |
8786 | ||
65f38f15 AM |
8787 | htab = ppc_hash_table (info); |
8788 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 8789 | |
411e1bfb | 8790 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) |
5bd4f169 | 8791 | { |
411e1bfb | 8792 | struct plt_entry *ent; |
65f38f15 | 8793 | Elf_Internal_Rela rela; |
947216bf | 8794 | bfd_byte *loc; |
5bd4f169 | 8795 | |
411e1bfb AM |
8796 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
8797 | if (ent->plt.offset != (bfd_vma) -1) | |
8798 | { | |
8799 | /* This symbol has an entry in the procedure linkage | |
8800 | table. Set it up. */ | |
5bd4f169 | 8801 | |
4ce794b7 AM |
8802 | if (htab->plt == NULL |
8803 | || htab->relplt == NULL | |
8804 | || htab->glink == NULL) | |
411e1bfb | 8805 | abort (); |
5bd4f169 | 8806 | |
411e1bfb AM |
8807 | /* Create a JMP_SLOT reloc to inform the dynamic linker to |
8808 | fill in the PLT entry. */ | |
4ce794b7 AM |
8809 | rela.r_offset = (htab->plt->output_section->vma |
8810 | + htab->plt->output_offset | |
411e1bfb AM |
8811 | + ent->plt.offset); |
8812 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
8813 | rela.r_addend = ent->addend; | |
5bd4f169 | 8814 | |
4ce794b7 | 8815 | loc = htab->relplt->contents; |
411e1bfb AM |
8816 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE |
8817 | * sizeof (Elf64_External_Rela)); | |
8818 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
8819 | } | |
5bd4f169 AM |
8820 | } |
8821 | ||
8822 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
8823 | { | |
5bd4f169 | 8824 | Elf_Internal_Rela rela; |
947216bf | 8825 | bfd_byte *loc; |
5bd4f169 | 8826 | |
65f38f15 | 8827 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 8828 | |
65f38f15 AM |
8829 | if (h->dynindx == -1 |
8830 | || (h->root.type != bfd_link_hash_defined | |
8831 | && h->root.type != bfd_link_hash_defweak) | |
4ce794b7 | 8832 | || htab->relbss == NULL) |
65f38f15 | 8833 | abort (); |
5bd4f169 AM |
8834 | |
8835 | rela.r_offset = (h->root.u.def.value | |
8836 | + h->root.u.def.section->output_section->vma | |
8837 | + h->root.u.def.section->output_offset); | |
8838 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
8839 | rela.r_addend = 0; | |
4ce794b7 AM |
8840 | loc = htab->relbss->contents; |
8841 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 8842 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
8843 | } |
8844 | ||
5bd4f169 AM |
8845 | /* Mark some specially defined symbols as absolute. */ |
8846 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
8847 | sym->st_shndx = SHN_ABS; | |
8848 | ||
b34976b6 | 8849 | return TRUE; |
5bd4f169 AM |
8850 | } |
8851 | ||
65f38f15 AM |
8852 | /* Used to decide how to sort relocs in an optimal manner for the |
8853 | dynamic linker, before writing them out. */ | |
8854 | ||
8855 | static enum elf_reloc_type_class | |
4ce794b7 | 8856 | ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
65f38f15 | 8857 | { |
04c9666a | 8858 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 8859 | |
4ce794b7 | 8860 | r_type = ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 8861 | switch (r_type) |
65f38f15 AM |
8862 | { |
8863 | case R_PPC64_RELATIVE: | |
8864 | return reloc_class_relative; | |
8865 | case R_PPC64_JMP_SLOT: | |
8866 | return reloc_class_plt; | |
8867 | case R_PPC64_COPY: | |
8868 | return reloc_class_copy; | |
8869 | default: | |
8870 | return reloc_class_normal; | |
8871 | } | |
8872 | } | |
8873 | ||
5bd4f169 AM |
8874 | /* Finish up the dynamic sections. */ |
8875 | ||
b34976b6 | 8876 | static bfd_boolean |
4ce794b7 AM |
8877 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
8878 | struct bfd_link_info *info) | |
5bd4f169 | 8879 | { |
65f38f15 AM |
8880 | struct ppc_link_hash_table *htab; |
8881 | bfd *dynobj; | |
5bd4f169 | 8882 | asection *sdyn; |
5bd4f169 | 8883 | |
65f38f15 AM |
8884 | htab = ppc_hash_table (info); |
8885 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
8886 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
8887 | ||
65f38f15 | 8888 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 8889 | { |
5bd4f169 AM |
8890 | Elf64_External_Dyn *dyncon, *dynconend; |
8891 | ||
4ce794b7 | 8892 | if (sdyn == NULL || htab->got == NULL) |
65f38f15 | 8893 | abort (); |
5bd4f169 AM |
8894 | |
8895 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
8896 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
8897 | for (; dyncon < dynconend; dyncon++) | |
8898 | { | |
8899 | Elf_Internal_Dyn dyn; | |
19397422 | 8900 | asection *s; |
5bd4f169 AM |
8901 | |
8902 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
8903 | ||
8904 | switch (dyn.d_tag) | |
8905 | { | |
65f38f15 AM |
8906 | default: |
8907 | continue; | |
5bd4f169 | 8908 | |
5d1634d7 | 8909 | case DT_PPC64_GLINK: |
4ce794b7 | 8910 | s = htab->glink; |
6348e046 | 8911 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
ad8e1ba5 AM |
8912 | /* We stupidly defined DT_PPC64_GLINK to be the start |
8913 | of glink rather than the first entry point, which is | |
8914 | what ld.so needs, and now have a bigger stub to | |
8915 | support automatic multiple TOCs. */ | |
8916 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
8917 | break; |
8918 | ||
19397422 AM |
8919 | case DT_PPC64_OPD: |
8920 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8921 | if (s == NULL) |
8922 | continue; | |
8923 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
8924 | break; |
8925 | ||
8926 | case DT_PPC64_OPDSZ: | |
8927 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8928 | if (s == NULL) |
8929 | continue; | |
8930 | dyn.d_un.d_val = s->_raw_size; | |
19397422 AM |
8931 | break; |
8932 | ||
65f38f15 | 8933 | case DT_PLTGOT: |
4ce794b7 | 8934 | s = htab->plt; |
6348e046 | 8935 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 AM |
8936 | break; |
8937 | ||
8938 | case DT_JMPREL: | |
4ce794b7 | 8939 | s = htab->relplt; |
6348e046 | 8940 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 | 8941 | break; |
5bd4f169 | 8942 | |
65f38f15 | 8943 | case DT_PLTRELSZ: |
4ce794b7 | 8944 | dyn.d_un.d_val = htab->relplt->_raw_size; |
5d1634d7 AM |
8945 | break; |
8946 | ||
8947 | case DT_RELASZ: | |
8948 | /* Don't count procedure linkage table relocs in the | |
8949 | overall reloc count. */ | |
4ce794b7 | 8950 | s = htab->relplt; |
6348e046 AM |
8951 | if (s == NULL) |
8952 | continue; | |
8953 | dyn.d_un.d_val -= s->_raw_size; | |
8954 | break; | |
8955 | ||
8956 | case DT_RELA: | |
8957 | /* We may not be using the standard ELF linker script. | |
8958 | If .rela.plt is the first .rela section, we adjust | |
8959 | DT_RELA to not include it. */ | |
4ce794b7 | 8960 | s = htab->relplt; |
6348e046 AM |
8961 | if (s == NULL) |
8962 | continue; | |
8963 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
8964 | continue; | |
8965 | dyn.d_un.d_ptr += s->_raw_size; | |
65f38f15 | 8966 | break; |
5bd4f169 | 8967 | } |
5bd4f169 | 8968 | |
65f38f15 | 8969 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 8970 | } |
5bd4f169 AM |
8971 | } |
8972 | ||
4ce794b7 | 8973 | if (htab->got != NULL && htab->got->_raw_size != 0) |
5d1634d7 AM |
8974 | { |
8975 | /* Fill in the first entry in the global offset table. | |
8976 | We use it to hold the link-time TOCbase. */ | |
8977 | bfd_put_64 (output_bfd, | |
60ee0d4a | 8978 | elf_gp (output_bfd) + TOC_BASE_OFF, |
4ce794b7 | 8979 | htab->got->contents); |
5d1634d7 AM |
8980 | |
8981 | /* Set .got entry size. */ | |
4ce794b7 | 8982 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
5d1634d7 AM |
8983 | } |
8984 | ||
4ce794b7 | 8985 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5d1634d7 AM |
8986 | { |
8987 | /* Set .plt entry size. */ | |
4ce794b7 | 8988 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
5d1634d7 AM |
8989 | = PLT_ENTRY_SIZE; |
8990 | } | |
8991 | ||
e717da7e AM |
8992 | /* We need to handle writing out multiple GOT sections ourselves, |
8993 | since we didn't add them to DYNOBJ. */ | |
8994 | while ((dynobj = dynobj->link_next) != NULL) | |
8995 | { | |
8996 | asection *s; | |
8997 | s = ppc64_elf_tdata (dynobj)->got; | |
8998 | if (s != NULL | |
8999 | && s->_raw_size != 0 | |
9000 | && s->output_section != bfd_abs_section_ptr | |
9001 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
9002 | s->contents, s->output_offset, | |
9003 | s->_raw_size)) | |
9004 | return FALSE; | |
9005 | s = ppc64_elf_tdata (dynobj)->relgot; | |
9006 | if (s != NULL | |
9007 | && s->_raw_size != 0 | |
9008 | && s->output_section != bfd_abs_section_ptr | |
9009 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
9010 | s->contents, s->output_offset, | |
9011 | s->_raw_size)) | |
9012 | return FALSE; | |
9013 | } | |
f6c52c13 | 9014 | |
b34976b6 | 9015 | return TRUE; |
5bd4f169 AM |
9016 | } |
9017 | ||
5bd4f169 | 9018 | #include "elf64-target.h" |