Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
86bbe32f | 2 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
4 | based on elf32-ppc.c by Ian Lance Taylor. | |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
5bd4f169 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
5bd4f169 | 17 | |
ae9a127f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
5bd4f169 AM |
21 | |
22 | /* This file is based on the 64-bit PowerPC ELF ABI. It is also based | |
23 | on the file elf32-ppc.c. */ | |
24 | ||
25 | #include "bfd.h" | |
26 | #include "sysdep.h" | |
27 | #include "bfdlink.h" | |
28 | #include "libbfd.h" | |
29 | #include "elf-bfd.h" | |
04c9666a | 30 | #include "elf/ppc64.h" |
5d1634d7 | 31 | #include "elf64-ppc.h" |
5bd4f169 | 32 | |
5bd4f169 AM |
33 | static void ppc_howto_init |
34 | PARAMS ((void)); | |
35 | static reloc_howto_type *ppc64_elf_reloc_type_lookup | |
36 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
37 | static void ppc64_elf_info_to_howto | |
947216bf | 38 | PARAMS ((bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)); |
805fc799 AM |
39 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
40 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
41 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc | |
42 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
43 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc | |
44 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
45 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc | |
46 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
47 | static bfd_reloc_status_type ppc64_elf_toc_reloc | |
48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
49 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc | |
50 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
51 | static bfd_reloc_status_type ppc64_elf_toc64_reloc | |
52 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
53 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc | |
5bd4f169 | 54 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
b34976b6 | 55 | static bfd_boolean ppc64_elf_object_p |
feee612b | 56 | PARAMS ((bfd *)); |
b34976b6 | 57 | static bfd_boolean ppc64_elf_merge_private_bfd_data |
5bd4f169 | 58 | PARAMS ((bfd *, bfd *)); |
f0abc2a1 AM |
59 | static bfd_boolean ppc64_elf_new_section_hook |
60 | PARAMS ((bfd *, asection *)); | |
5bd4f169 AM |
61 | |
62 | ||
ad8e1ba5 AM |
63 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
64 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
65 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
66 | #define TARGET_BIG_NAME "elf64-powerpc" | |
67 | #define ELF_ARCH bfd_arch_powerpc | |
68 | #define ELF_MACHINE_CODE EM_PPC64 | |
69 | #define ELF_MAXPAGESIZE 0x10000 | |
70 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
71 | ||
72 | #define elf_backend_want_got_sym 0 | |
73 | #define elf_backend_want_plt_sym 0 | |
74 | #define elf_backend_plt_alignment 3 | |
75 | #define elf_backend_plt_not_loaded 1 | |
76 | #define elf_backend_got_symbol_offset 0 | |
77 | #define elf_backend_got_header_size 8 | |
78 | #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE | |
79 | #define elf_backend_can_gc_sections 1 | |
80 | #define elf_backend_can_refcount 1 | |
81 | #define elf_backend_rela_normal 1 | |
82 | ||
83 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup | |
84 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
85 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
86 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
87 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
88 | ||
89 | #define elf_backend_object_p ppc64_elf_object_p | |
90 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections | |
91 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
92 | #define elf_backend_check_relocs ppc64_elf_check_relocs | |
93 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook | |
94 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
95 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
96 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
97 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
98 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
99 | #define elf_backend_relocate_section ppc64_elf_relocate_section | |
100 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
101 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
102 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
103 | ||
5bd4f169 AM |
104 | /* The name of the dynamic interpreter. This is put in the .interp |
105 | section. */ | |
106 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
107 | ||
108 | /* The size in bytes of an entry in the procedure linkage table. */ | |
109 | #define PLT_ENTRY_SIZE 24 | |
110 | ||
111 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 112 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
113 | |
114 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
115 | #define TOC_BASE_OFF 0x8000 |
116 | ||
117 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
118 | #define TP_OFFSET 0x7000 | |
119 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 120 | |
ad8e1ba5 AM |
121 | /* .plt call stub instructions. The normal stub is like this, but |
122 | sometimes the .plt entry crosses a 64k boundary and we need to | |
123 | insert an addis to adjust r12. */ | |
124 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
125 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
126 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
127 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
128 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
129 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
130 | /* ld %r11,xxx+16@l(%r12) */ | |
131 | #define BCTR 0x4e800420 /* bctr */ | |
132 | ||
5d1634d7 | 133 | |
ad8e1ba5 AM |
134 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
135 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
136 | ||
137 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
138 | ||
139 | /* glink call stub instructions. We enter with the index in R0, and the | |
140 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
141 | #define GLINK_CALL_STUB_SIZE (16*4) | |
142 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
143 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
144 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
145 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
146 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
147 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
148 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
149 | /* sub %r12,%r12,%r11 */ | |
150 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
151 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
152 | /* ld %r11,xxx@l(%r12) */ | |
153 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
154 | /* ld %r2,8(%r12) */ | |
155 | /* mtctr %r11 */ | |
156 | /* ld %r11,16(%r12) */ | |
157 | /* bctr */ | |
5d1634d7 AM |
158 | |
159 | /* Pad with this. */ | |
160 | #define NOP 0x60000000 | |
161 | ||
721956f4 AM |
162 | /* Some other nops. */ |
163 | #define CROR_151515 0x4def7b82 | |
164 | #define CROR_313131 0x4ffffb82 | |
165 | ||
cedb70c5 | 166 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
167 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
168 | #define B_DOT 0x48000000 /* b . */ | |
169 | ||
170 | /* After that, we need two instructions to load the index, followed by | |
171 | a branch. */ | |
172 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 173 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 174 | |
82bd7b59 AM |
175 | /* Instructions to save and restore floating point regs. */ |
176 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ | |
177 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
178 | #define BLR 0x4e800020 /* blr */ | |
179 | ||
41bd81ab AM |
180 | /* Since .opd is an array of descriptors and each entry will end up |
181 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
182 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 183 | relocate .opd without reloc entries. */ |
41bd81ab AM |
184 | #ifndef NO_OPD_RELOCS |
185 | #define NO_OPD_RELOCS 0 | |
186 | #endif | |
5bd4f169 | 187 | \f |
f5e87a1d | 188 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 189 | |
5bd4f169 | 190 | /* Relocation HOWTO's. */ |
04c9666a | 191 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
192 | |
193 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
194 | /* This reloc does nothing. */ | |
195 | HOWTO (R_PPC64_NONE, /* type */ | |
196 | 0, /* rightshift */ | |
411e1bfb AM |
197 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
198 | 32, /* bitsize */ | |
b34976b6 | 199 | FALSE, /* pc_relative */ |
5bd4f169 | 200 | 0, /* bitpos */ |
f5e87a1d | 201 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
202 | bfd_elf_generic_reloc, /* special_function */ |
203 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 204 | FALSE, /* partial_inplace */ |
d006db6c | 205 | 0, /* src_mask */ |
5bd4f169 | 206 | 0, /* dst_mask */ |
b34976b6 | 207 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
208 | |
209 | /* A standard 32 bit relocation. */ | |
210 | HOWTO (R_PPC64_ADDR32, /* type */ | |
211 | 0, /* rightshift */ | |
212 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
213 | 32, /* bitsize */ | |
b34976b6 | 214 | FALSE, /* pc_relative */ |
5bd4f169 AM |
215 | 0, /* bitpos */ |
216 | complain_overflow_bitfield, /* complain_on_overflow */ | |
217 | bfd_elf_generic_reloc, /* special_function */ | |
218 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 219 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
220 | 0, /* src_mask */ |
221 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 222 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
223 | |
224 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
225 | FIXME: we don't check that, we just clear them. */ | |
226 | HOWTO (R_PPC64_ADDR24, /* type */ | |
227 | 0, /* rightshift */ | |
228 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
229 | 26, /* bitsize */ | |
b34976b6 | 230 | FALSE, /* pc_relative */ |
5bd4f169 AM |
231 | 0, /* bitpos */ |
232 | complain_overflow_bitfield, /* complain_on_overflow */ | |
233 | bfd_elf_generic_reloc, /* special_function */ | |
234 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 235 | FALSE, /* partial_inplace */ |
d006db6c | 236 | 0, /* src_mask */ |
f5e87a1d | 237 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 238 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
239 | |
240 | /* A standard 16 bit relocation. */ | |
241 | HOWTO (R_PPC64_ADDR16, /* type */ | |
242 | 0, /* rightshift */ | |
243 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
244 | 16, /* bitsize */ | |
b34976b6 | 245 | FALSE, /* pc_relative */ |
5bd4f169 AM |
246 | 0, /* bitpos */ |
247 | complain_overflow_bitfield, /* complain_on_overflow */ | |
248 | bfd_elf_generic_reloc, /* special_function */ | |
249 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 250 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
251 | 0, /* src_mask */ |
252 | 0xffff, /* dst_mask */ | |
b34976b6 | 253 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
254 | |
255 | /* A 16 bit relocation without overflow. */ | |
256 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
257 | 0, /* rightshift */ | |
258 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
259 | 16, /* bitsize */ | |
b34976b6 | 260 | FALSE, /* pc_relative */ |
5bd4f169 AM |
261 | 0, /* bitpos */ |
262 | complain_overflow_dont,/* complain_on_overflow */ | |
263 | bfd_elf_generic_reloc, /* special_function */ | |
264 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 265 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
266 | 0, /* src_mask */ |
267 | 0xffff, /* dst_mask */ | |
b34976b6 | 268 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
269 | |
270 | /* Bits 16-31 of an address. */ | |
271 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
272 | 16, /* rightshift */ | |
273 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
274 | 16, /* bitsize */ | |
b34976b6 | 275 | FALSE, /* pc_relative */ |
5bd4f169 AM |
276 | 0, /* bitpos */ |
277 | complain_overflow_dont, /* complain_on_overflow */ | |
278 | bfd_elf_generic_reloc, /* special_function */ | |
279 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 280 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
281 | 0, /* src_mask */ |
282 | 0xffff, /* dst_mask */ | |
b34976b6 | 283 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
284 | |
285 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
286 | bits, treated as a signed number, is negative. */ | |
287 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
288 | 16, /* rightshift */ | |
289 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
290 | 16, /* bitsize */ | |
b34976b6 | 291 | FALSE, /* pc_relative */ |
5bd4f169 AM |
292 | 0, /* bitpos */ |
293 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 294 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 295 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 296 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
297 | 0, /* src_mask */ |
298 | 0xffff, /* dst_mask */ | |
b34976b6 | 299 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
300 | |
301 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
302 | FIXME: we don't check that, we just clear them. */ | |
303 | HOWTO (R_PPC64_ADDR14, /* type */ | |
304 | 0, /* rightshift */ | |
305 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
306 | 16, /* bitsize */ | |
b34976b6 | 307 | FALSE, /* pc_relative */ |
5bd4f169 AM |
308 | 0, /* bitpos */ |
309 | complain_overflow_bitfield, /* complain_on_overflow */ | |
310 | bfd_elf_generic_reloc, /* special_function */ | |
311 | "R_PPC64_ADDR14", /* name */ | |
b34976b6 | 312 | FALSE, /* partial_inplace */ |
d006db6c | 313 | 0, /* src_mask */ |
f5e87a1d | 314 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 315 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
316 | |
317 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
318 | indicate that the branch is expected to be taken. The lower two | |
319 | bits must be zero. */ | |
320 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
321 | 0, /* rightshift */ | |
322 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
323 | 16, /* bitsize */ | |
b34976b6 | 324 | FALSE, /* pc_relative */ |
5bd4f169 AM |
325 | 0, /* bitpos */ |
326 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 327 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 328 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 329 | FALSE, /* partial_inplace */ |
d006db6c | 330 | 0, /* src_mask */ |
f5e87a1d | 331 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 332 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
333 | |
334 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
335 | indicate that the branch is not expected to be taken. The lower | |
336 | two bits must be zero. */ | |
337 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
338 | 0, /* rightshift */ | |
339 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
340 | 16, /* bitsize */ | |
b34976b6 | 341 | FALSE, /* pc_relative */ |
5bd4f169 AM |
342 | 0, /* bitpos */ |
343 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 344 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 345 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 346 | FALSE, /* partial_inplace */ |
d006db6c | 347 | 0, /* src_mask */ |
f5e87a1d | 348 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 349 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
350 | |
351 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
352 | HOWTO (R_PPC64_REL24, /* type */ | |
353 | 0, /* rightshift */ | |
354 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
355 | 26, /* bitsize */ | |
b34976b6 | 356 | TRUE, /* pc_relative */ |
5bd4f169 AM |
357 | 0, /* bitpos */ |
358 | complain_overflow_signed, /* complain_on_overflow */ | |
359 | bfd_elf_generic_reloc, /* special_function */ | |
360 | "R_PPC64_REL24", /* name */ | |
b34976b6 | 361 | FALSE, /* partial_inplace */ |
d006db6c | 362 | 0, /* src_mask */ |
f5e87a1d | 363 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 364 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
365 | |
366 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
367 | HOWTO (R_PPC64_REL14, /* type */ | |
368 | 0, /* rightshift */ | |
369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
370 | 16, /* bitsize */ | |
b34976b6 | 371 | TRUE, /* pc_relative */ |
5bd4f169 AM |
372 | 0, /* bitpos */ |
373 | complain_overflow_signed, /* complain_on_overflow */ | |
374 | bfd_elf_generic_reloc, /* special_function */ | |
375 | "R_PPC64_REL14", /* name */ | |
b34976b6 | 376 | FALSE, /* partial_inplace */ |
d006db6c | 377 | 0, /* src_mask */ |
f5e87a1d | 378 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 379 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
380 | |
381 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
382 | the branch is expected to be taken. The lower two bits must be | |
383 | zero. */ | |
384 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
385 | 0, /* rightshift */ | |
386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
387 | 16, /* bitsize */ | |
b34976b6 | 388 | TRUE, /* pc_relative */ |
5bd4f169 AM |
389 | 0, /* bitpos */ |
390 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 391 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 392 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 393 | FALSE, /* partial_inplace */ |
d006db6c | 394 | 0, /* src_mask */ |
f5e87a1d | 395 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 396 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
397 | |
398 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
399 | the branch is not expected to be taken. The lower two bits must | |
400 | be zero. */ | |
401 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
402 | 0, /* rightshift */ | |
403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
404 | 16, /* bitsize */ | |
b34976b6 | 405 | TRUE, /* pc_relative */ |
5bd4f169 AM |
406 | 0, /* bitpos */ |
407 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 408 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 409 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 410 | FALSE, /* partial_inplace */ |
d006db6c | 411 | 0, /* src_mask */ |
f5e87a1d | 412 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 413 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
414 | |
415 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
416 | symbol. */ | |
417 | HOWTO (R_PPC64_GOT16, /* type */ | |
418 | 0, /* rightshift */ | |
419 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
420 | 16, /* bitsize */ | |
b34976b6 | 421 | FALSE, /* pc_relative */ |
5bd4f169 AM |
422 | 0, /* bitpos */ |
423 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 424 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 425 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 426 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
427 | 0, /* src_mask */ |
428 | 0xffff, /* dst_mask */ | |
b34976b6 | 429 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
430 | |
431 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
432 | the symbol. */ | |
433 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
434 | 0, /* rightshift */ | |
435 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
436 | 16, /* bitsize */ | |
b34976b6 | 437 | FALSE, /* pc_relative */ |
5bd4f169 AM |
438 | 0, /* bitpos */ |
439 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 440 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 441 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 442 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
443 | 0, /* src_mask */ |
444 | 0xffff, /* dst_mask */ | |
b34976b6 | 445 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
446 | |
447 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
448 | the symbol. */ | |
449 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
450 | 16, /* rightshift */ | |
451 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
452 | 16, /* bitsize */ | |
b34976b6 | 453 | FALSE, /* pc_relative */ |
5bd4f169 AM |
454 | 0, /* bitpos */ |
455 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 456 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 457 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 458 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
459 | 0, /* src_mask */ |
460 | 0xffff, /* dst_mask */ | |
b34976b6 | 461 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
462 | |
463 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
464 | the symbol. */ | |
465 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
466 | 16, /* rightshift */ | |
467 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
468 | 16, /* bitsize */ | |
b34976b6 | 469 | FALSE, /* pc_relative */ |
5bd4f169 AM |
470 | 0, /* bitpos */ |
471 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 472 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 473 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 474 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
475 | 0, /* src_mask */ |
476 | 0xffff, /* dst_mask */ | |
b34976b6 | 477 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
478 | |
479 | /* This is used only by the dynamic linker. The symbol should exist | |
480 | both in the object being run and in some shared library. The | |
481 | dynamic linker copies the data addressed by the symbol from the | |
482 | shared library into the object, because the object being | |
483 | run has to have the data at some particular address. */ | |
484 | HOWTO (R_PPC64_COPY, /* type */ | |
485 | 0, /* rightshift */ | |
f5e87a1d AM |
486 | 0, /* this one is variable size */ |
487 | 0, /* bitsize */ | |
b34976b6 | 488 | FALSE, /* pc_relative */ |
5bd4f169 | 489 | 0, /* bitpos */ |
f5e87a1d AM |
490 | complain_overflow_dont, /* complain_on_overflow */ |
491 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 492 | "R_PPC64_COPY", /* name */ |
b34976b6 | 493 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
494 | 0, /* src_mask */ |
495 | 0, /* dst_mask */ | |
b34976b6 | 496 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
497 | |
498 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
499 | entries. */ | |
500 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
501 | 0, /* rightshift */ | |
502 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
503 | 64, /* bitsize */ | |
b34976b6 | 504 | FALSE, /* pc_relative */ |
5bd4f169 AM |
505 | 0, /* bitpos */ |
506 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 507 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 508 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 509 | FALSE, /* partial_inplace */ |
5bd4f169 | 510 | 0, /* src_mask */ |
f5e87a1d | 511 | ONES (64), /* dst_mask */ |
b34976b6 | 512 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
513 | |
514 | /* Created by the link editor. Marks a procedure linkage table | |
515 | entry for a symbol. */ | |
516 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
517 | 0, /* rightshift */ | |
518 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
519 | 0, /* bitsize */ | |
b34976b6 | 520 | FALSE, /* pc_relative */ |
5bd4f169 AM |
521 | 0, /* bitpos */ |
522 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 523 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 524 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 525 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
526 | 0, /* src_mask */ |
527 | 0, /* dst_mask */ | |
b34976b6 | 528 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
529 | |
530 | /* Used only by the dynamic linker. When the object is run, this | |
531 | doubleword64 is set to the load address of the object, plus the | |
532 | addend. */ | |
533 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
534 | 0, /* rightshift */ | |
535 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
536 | 64, /* bitsize */ | |
b34976b6 | 537 | FALSE, /* pc_relative */ |
5bd4f169 AM |
538 | 0, /* bitpos */ |
539 | complain_overflow_dont, /* complain_on_overflow */ | |
540 | bfd_elf_generic_reloc, /* special_function */ | |
541 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 542 | FALSE, /* partial_inplace */ |
5bd4f169 | 543 | 0, /* src_mask */ |
f5e87a1d | 544 | ONES (64), /* dst_mask */ |
b34976b6 | 545 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
546 | |
547 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
548 | HOWTO (R_PPC64_UADDR32, /* type */ | |
549 | 0, /* rightshift */ | |
550 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
551 | 32, /* bitsize */ | |
b34976b6 | 552 | FALSE, /* pc_relative */ |
5bd4f169 AM |
553 | 0, /* bitpos */ |
554 | complain_overflow_bitfield, /* complain_on_overflow */ | |
555 | bfd_elf_generic_reloc, /* special_function */ | |
556 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 557 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
558 | 0, /* src_mask */ |
559 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 560 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
561 | |
562 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
563 | HOWTO (R_PPC64_UADDR16, /* type */ | |
564 | 0, /* rightshift */ | |
565 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
566 | 16, /* bitsize */ | |
b34976b6 | 567 | FALSE, /* pc_relative */ |
5bd4f169 AM |
568 | 0, /* bitpos */ |
569 | complain_overflow_bitfield, /* complain_on_overflow */ | |
570 | bfd_elf_generic_reloc, /* special_function */ | |
571 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 572 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
573 | 0, /* src_mask */ |
574 | 0xffff, /* dst_mask */ | |
b34976b6 | 575 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
576 | |
577 | /* 32-bit PC relative. */ | |
578 | HOWTO (R_PPC64_REL32, /* type */ | |
579 | 0, /* rightshift */ | |
580 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
581 | 32, /* bitsize */ | |
b34976b6 | 582 | TRUE, /* pc_relative */ |
5bd4f169 | 583 | 0, /* bitpos */ |
cedb70c5 | 584 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
585 | complain_overflow_signed, /* complain_on_overflow */ |
586 | bfd_elf_generic_reloc, /* special_function */ | |
587 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 588 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
589 | 0, /* src_mask */ |
590 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 591 | TRUE), /* pcrel_offset */ |
5bd4f169 | 592 | |
10ed1bba | 593 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
594 | HOWTO (R_PPC64_PLT32, /* type */ |
595 | 0, /* rightshift */ | |
596 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
597 | 32, /* bitsize */ | |
b34976b6 | 598 | FALSE, /* pc_relative */ |
5bd4f169 AM |
599 | 0, /* bitpos */ |
600 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 601 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 602 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 603 | FALSE, /* partial_inplace */ |
5bd4f169 | 604 | 0, /* src_mask */ |
f5e87a1d | 605 | 0xffffffff, /* dst_mask */ |
b34976b6 | 606 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
607 | |
608 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
609 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
610 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
611 | 0, /* rightshift */ | |
612 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
613 | 32, /* bitsize */ | |
b34976b6 | 614 | TRUE, /* pc_relative */ |
5bd4f169 AM |
615 | 0, /* bitpos */ |
616 | complain_overflow_signed, /* complain_on_overflow */ | |
617 | bfd_elf_generic_reloc, /* special_function */ | |
618 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 619 | FALSE, /* partial_inplace */ |
5bd4f169 | 620 | 0, /* src_mask */ |
f5e87a1d | 621 | 0xffffffff, /* dst_mask */ |
b34976b6 | 622 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
623 | |
624 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
625 | the symbol. */ | |
626 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
627 | 0, /* rightshift */ | |
628 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
629 | 16, /* bitsize */ | |
b34976b6 | 630 | FALSE, /* pc_relative */ |
5bd4f169 AM |
631 | 0, /* bitpos */ |
632 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 633 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 634 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 635 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
636 | 0, /* src_mask */ |
637 | 0xffff, /* dst_mask */ | |
b34976b6 | 638 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
639 | |
640 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
641 | the symbol. */ | |
642 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
643 | 16, /* rightshift */ | |
644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
645 | 16, /* bitsize */ | |
b34976b6 | 646 | FALSE, /* pc_relative */ |
5bd4f169 AM |
647 | 0, /* bitpos */ |
648 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 649 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 650 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 651 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
652 | 0, /* src_mask */ |
653 | 0xffff, /* dst_mask */ | |
b34976b6 | 654 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
655 | |
656 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
657 | the symbol. */ | |
658 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
659 | 16, /* rightshift */ | |
660 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
661 | 16, /* bitsize */ | |
b34976b6 | 662 | FALSE, /* pc_relative */ |
5bd4f169 AM |
663 | 0, /* bitpos */ |
664 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 665 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 666 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 667 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
668 | 0, /* src_mask */ |
669 | 0xffff, /* dst_mask */ | |
b34976b6 | 670 | FALSE), /* pcrel_offset */ |
5bd4f169 | 671 | |
c061c2d8 | 672 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
673 | HOWTO (R_PPC64_SECTOFF, /* type */ |
674 | 0, /* rightshift */ | |
c061c2d8 AM |
675 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
676 | 16, /* bitsize */ | |
b34976b6 | 677 | FALSE, /* pc_relative */ |
5bd4f169 AM |
678 | 0, /* bitpos */ |
679 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 680 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 681 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 682 | FALSE, /* partial_inplace */ |
5bd4f169 | 683 | 0, /* src_mask */ |
c061c2d8 | 684 | 0xffff, /* dst_mask */ |
b34976b6 | 685 | FALSE), /* pcrel_offset */ |
5bd4f169 | 686 | |
c061c2d8 | 687 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
688 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
689 | 0, /* rightshift */ | |
690 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
691 | 16, /* bitsize */ | |
b34976b6 | 692 | FALSE, /* pc_relative */ |
5bd4f169 AM |
693 | 0, /* bitpos */ |
694 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 695 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 696 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 697 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
698 | 0, /* src_mask */ |
699 | 0xffff, /* dst_mask */ | |
b34976b6 | 700 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
701 | |
702 | /* 16-bit upper half section relative relocation. */ | |
703 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
704 | 16, /* rightshift */ | |
705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
706 | 16, /* bitsize */ | |
b34976b6 | 707 | FALSE, /* pc_relative */ |
5bd4f169 AM |
708 | 0, /* bitpos */ |
709 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 710 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 711 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 712 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
713 | 0, /* src_mask */ |
714 | 0xffff, /* dst_mask */ | |
b34976b6 | 715 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
716 | |
717 | /* 16-bit upper half adjusted section relative relocation. */ | |
718 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
719 | 16, /* rightshift */ | |
720 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
721 | 16, /* bitsize */ | |
b34976b6 | 722 | FALSE, /* pc_relative */ |
5bd4f169 AM |
723 | 0, /* bitpos */ |
724 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 725 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 726 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 727 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
728 | 0, /* src_mask */ |
729 | 0xffff, /* dst_mask */ | |
b34976b6 | 730 | FALSE), /* pcrel_offset */ |
5bd4f169 | 731 | |
04c9666a AM |
732 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
733 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
734 | 2, /* rightshift */ |
735 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
736 | 30, /* bitsize */ | |
b34976b6 | 737 | TRUE, /* pc_relative */ |
5bd4f169 AM |
738 | 0, /* bitpos */ |
739 | complain_overflow_dont, /* complain_on_overflow */ | |
740 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 741 | "R_PPC64_REL30", /* name */ |
b34976b6 | 742 | FALSE, /* partial_inplace */ |
d006db6c | 743 | 0, /* src_mask */ |
5bd4f169 | 744 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 745 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
746 | |
747 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
748 | ||
749 | /* A standard 64-bit relocation. */ | |
750 | HOWTO (R_PPC64_ADDR64, /* type */ | |
751 | 0, /* rightshift */ | |
752 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
753 | 64, /* bitsize */ | |
b34976b6 | 754 | FALSE, /* pc_relative */ |
5bd4f169 AM |
755 | 0, /* bitpos */ |
756 | complain_overflow_dont, /* complain_on_overflow */ | |
757 | bfd_elf_generic_reloc, /* special_function */ | |
758 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 759 | FALSE, /* partial_inplace */ |
5bd4f169 | 760 | 0, /* src_mask */ |
f5e87a1d | 761 | ONES (64), /* dst_mask */ |
b34976b6 | 762 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
763 | |
764 | /* The bits 32-47 of an address. */ | |
765 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
766 | 32, /* rightshift */ | |
767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
768 | 16, /* bitsize */ | |
b34976b6 | 769 | FALSE, /* pc_relative */ |
5bd4f169 AM |
770 | 0, /* bitpos */ |
771 | complain_overflow_dont, /* complain_on_overflow */ | |
772 | bfd_elf_generic_reloc, /* special_function */ | |
773 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 774 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
775 | 0, /* src_mask */ |
776 | 0xffff, /* dst_mask */ | |
b34976b6 | 777 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
778 | |
779 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
780 | 16 bits, treated as a signed number, is negative. */ | |
781 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
782 | 32, /* rightshift */ | |
783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
784 | 16, /* bitsize */ | |
b34976b6 | 785 | FALSE, /* pc_relative */ |
5bd4f169 AM |
786 | 0, /* bitpos */ |
787 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 788 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 789 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 790 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
791 | 0, /* src_mask */ |
792 | 0xffff, /* dst_mask */ | |
b34976b6 | 793 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
794 | |
795 | /* The bits 48-63 of an address. */ | |
796 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
797 | 48, /* rightshift */ | |
798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
799 | 16, /* bitsize */ | |
b34976b6 | 800 | FALSE, /* pc_relative */ |
5bd4f169 AM |
801 | 0, /* bitpos */ |
802 | complain_overflow_dont, /* complain_on_overflow */ | |
803 | bfd_elf_generic_reloc, /* special_function */ | |
804 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 805 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
806 | 0, /* src_mask */ |
807 | 0xffff, /* dst_mask */ | |
b34976b6 | 808 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
809 | |
810 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
811 | 16 bits, treated as a signed number, is negative. */ | |
812 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
813 | 48, /* rightshift */ | |
814 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
815 | 16, /* bitsize */ | |
b34976b6 | 816 | FALSE, /* pc_relative */ |
5bd4f169 AM |
817 | 0, /* bitpos */ |
818 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 819 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 820 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 821 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
822 | 0, /* src_mask */ |
823 | 0xffff, /* dst_mask */ | |
b34976b6 | 824 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
825 | |
826 | /* Like ADDR64, but may be unaligned. */ | |
827 | HOWTO (R_PPC64_UADDR64, /* type */ | |
828 | 0, /* rightshift */ | |
829 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
830 | 64, /* bitsize */ | |
b34976b6 | 831 | FALSE, /* pc_relative */ |
5bd4f169 AM |
832 | 0, /* bitpos */ |
833 | complain_overflow_dont, /* complain_on_overflow */ | |
834 | bfd_elf_generic_reloc, /* special_function */ | |
835 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 836 | FALSE, /* partial_inplace */ |
5bd4f169 | 837 | 0, /* src_mask */ |
f5e87a1d | 838 | ONES (64), /* dst_mask */ |
b34976b6 | 839 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
840 | |
841 | /* 64-bit relative relocation. */ | |
842 | HOWTO (R_PPC64_REL64, /* type */ | |
843 | 0, /* rightshift */ | |
844 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
845 | 64, /* bitsize */ | |
b34976b6 | 846 | TRUE, /* pc_relative */ |
5bd4f169 AM |
847 | 0, /* bitpos */ |
848 | complain_overflow_dont, /* complain_on_overflow */ | |
849 | bfd_elf_generic_reloc, /* special_function */ | |
850 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 851 | FALSE, /* partial_inplace */ |
5bd4f169 | 852 | 0, /* src_mask */ |
f5e87a1d | 853 | ONES (64), /* dst_mask */ |
b34976b6 | 854 | TRUE), /* pcrel_offset */ |
5bd4f169 | 855 | |
cedb70c5 | 856 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
857 | HOWTO (R_PPC64_PLT64, /* type */ |
858 | 0, /* rightshift */ | |
859 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
860 | 64, /* bitsize */ | |
b34976b6 | 861 | FALSE, /* pc_relative */ |
5bd4f169 AM |
862 | 0, /* bitpos */ |
863 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 864 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 865 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 866 | FALSE, /* partial_inplace */ |
5bd4f169 | 867 | 0, /* src_mask */ |
f5e87a1d | 868 | ONES (64), /* dst_mask */ |
b34976b6 | 869 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
870 | |
871 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
872 | table. */ | |
873 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
874 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
875 | 0, /* rightshift */ | |
876 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
877 | 64, /* bitsize */ | |
b34976b6 | 878 | TRUE, /* pc_relative */ |
5bd4f169 AM |
879 | 0, /* bitpos */ |
880 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 881 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 882 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 883 | FALSE, /* partial_inplace */ |
5bd4f169 | 884 | 0, /* src_mask */ |
f5e87a1d | 885 | ONES (64), /* dst_mask */ |
b34976b6 | 886 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
887 | |
888 | /* 16 bit TOC-relative relocation. */ | |
889 | ||
890 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
891 | HOWTO (R_PPC64_TOC16, /* type */ | |
892 | 0, /* rightshift */ | |
893 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
894 | 16, /* bitsize */ | |
b34976b6 | 895 | FALSE, /* pc_relative */ |
5bd4f169 AM |
896 | 0, /* bitpos */ |
897 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 898 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 899 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 900 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
901 | 0, /* src_mask */ |
902 | 0xffff, /* dst_mask */ | |
b34976b6 | 903 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
904 | |
905 | /* 16 bit TOC-relative relocation without overflow. */ | |
906 | ||
907 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
908 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
909 | 0, /* rightshift */ | |
910 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
911 | 16, /* bitsize */ | |
b34976b6 | 912 | FALSE, /* pc_relative */ |
5bd4f169 AM |
913 | 0, /* bitpos */ |
914 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 915 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 916 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 917 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
918 | 0, /* src_mask */ |
919 | 0xffff, /* dst_mask */ | |
b34976b6 | 920 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
921 | |
922 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
923 | ||
924 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
925 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
926 | 16, /* rightshift */ | |
927 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
928 | 16, /* bitsize */ | |
b34976b6 | 929 | FALSE, /* pc_relative */ |
5bd4f169 AM |
930 | 0, /* bitpos */ |
931 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 932 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 933 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 934 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
935 | 0, /* src_mask */ |
936 | 0xffff, /* dst_mask */ | |
b34976b6 | 937 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
938 | |
939 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
940 | contents of the low 16 bits, treated as a signed number, is | |
941 | negative. */ | |
942 | ||
943 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
944 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
945 | 16, /* rightshift */ | |
946 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
947 | 16, /* bitsize */ | |
b34976b6 | 948 | FALSE, /* pc_relative */ |
5bd4f169 AM |
949 | 0, /* bitpos */ |
950 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 951 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 952 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 953 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
954 | 0, /* src_mask */ |
955 | 0xffff, /* dst_mask */ | |
b34976b6 | 956 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
957 | |
958 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
959 | ||
960 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
961 | HOWTO (R_PPC64_TOC, /* type */ | |
962 | 0, /* rightshift */ | |
963 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
964 | 64, /* bitsize */ | |
b34976b6 | 965 | FALSE, /* pc_relative */ |
5bd4f169 AM |
966 | 0, /* bitpos */ |
967 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 968 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 969 | "R_PPC64_TOC", /* name */ |
b34976b6 | 970 | FALSE, /* partial_inplace */ |
5bd4f169 | 971 | 0, /* src_mask */ |
f5e87a1d | 972 | ONES (64), /* dst_mask */ |
b34976b6 | 973 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
974 | |
975 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
976 | value to relocate may (!) refer to a PLT entry which the link | |
977 | editor (a) may replace with the symbol value. If the link editor | |
978 | is unable to fully resolve the symbol, it may (b) create a PLT | |
979 | entry and store the address to the new PLT entry in the GOT. | |
980 | This permits lazy resolution of function symbols at run time. | |
981 | The link editor may also skip all of this and just (c) emit a | |
982 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
983 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
984 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
985 | 0, /* rightshift */ | |
986 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
987 | 16, /* bitsize */ | |
b34976b6 | 988 | FALSE, /* pc_relative */ |
5bd4f169 AM |
989 | 0, /* bitpos */ |
990 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 991 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
992 | "R_PPC64_PLTGOT16", /* name */ |
993 | FALSE, /* partial_inplace */ | |
994 | 0, /* src_mask */ | |
995 | 0xffff, /* dst_mask */ | |
996 | FALSE), /* pcrel_offset */ | |
997 | ||
998 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
999 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1000 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
1001 | 0, /* rightshift */ | |
1002 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1003 | 16, /* bitsize */ | |
1004 | FALSE, /* pc_relative */ | |
1005 | 0, /* bitpos */ | |
1006 | complain_overflow_dont, /* complain_on_overflow */ | |
1007 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1008 | "R_PPC64_PLTGOT16_LO", /* name */ | |
1009 | FALSE, /* partial_inplace */ | |
1010 | 0, /* src_mask */ | |
1011 | 0xffff, /* dst_mask */ | |
1012 | FALSE), /* pcrel_offset */ | |
1013 | ||
1014 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1015 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1016 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1017 | 16, /* rightshift */ | |
1018 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1019 | 16, /* bitsize */ | |
1020 | FALSE, /* pc_relative */ | |
1021 | 0, /* bitpos */ | |
1022 | complain_overflow_dont, /* complain_on_overflow */ | |
1023 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1024 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1025 | FALSE, /* partial_inplace */ | |
1026 | 0, /* src_mask */ | |
1027 | 0xffff, /* dst_mask */ | |
1028 | FALSE), /* pcrel_offset */ | |
1029 | ||
1030 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1031 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1032 | is negative. */ | |
1033 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1034 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1035 | 16, /* rightshift */ | |
1036 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1037 | 16, /* bitsize */ | |
1038 | FALSE, /* pc_relative */ | |
1039 | 0, /* bitpos */ | |
1040 | complain_overflow_dont,/* complain_on_overflow */ | |
1041 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1042 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1043 | FALSE, /* partial_inplace */ | |
1044 | 0, /* src_mask */ | |
1045 | 0xffff, /* dst_mask */ | |
1046 | FALSE), /* pcrel_offset */ | |
1047 | ||
1048 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1049 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1050 | 0, /* rightshift */ | |
1051 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1052 | 16, /* bitsize */ | |
1053 | FALSE, /* pc_relative */ | |
1054 | 0, /* bitpos */ | |
1055 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1056 | bfd_elf_generic_reloc, /* special_function */ | |
1057 | "R_PPC64_ADDR16_DS", /* name */ | |
1058 | FALSE, /* partial_inplace */ | |
1059 | 0, /* src_mask */ | |
1060 | 0xfffc, /* dst_mask */ | |
1061 | FALSE), /* pcrel_offset */ | |
1062 | ||
1063 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1064 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1065 | 0, /* rightshift */ | |
1066 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1067 | 16, /* bitsize */ | |
1068 | FALSE, /* pc_relative */ | |
1069 | 0, /* bitpos */ | |
1070 | complain_overflow_dont,/* complain_on_overflow */ | |
1071 | bfd_elf_generic_reloc, /* special_function */ | |
1072 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1073 | FALSE, /* partial_inplace */ | |
1074 | 0, /* src_mask */ | |
1075 | 0xfffc, /* dst_mask */ | |
1076 | FALSE), /* pcrel_offset */ | |
1077 | ||
1078 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1079 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1080 | 0, /* rightshift */ | |
1081 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1082 | 16, /* bitsize */ | |
1083 | FALSE, /* pc_relative */ | |
1084 | 0, /* bitpos */ | |
1085 | complain_overflow_signed, /* complain_on_overflow */ | |
1086 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1087 | "R_PPC64_GOT16_DS", /* name */ | |
1088 | FALSE, /* partial_inplace */ | |
1089 | 0, /* src_mask */ | |
1090 | 0xfffc, /* dst_mask */ | |
1091 | FALSE), /* pcrel_offset */ | |
1092 | ||
1093 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1094 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1095 | 0, /* rightshift */ | |
1096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1097 | 16, /* bitsize */ | |
1098 | FALSE, /* pc_relative */ | |
1099 | 0, /* bitpos */ | |
1100 | complain_overflow_dont, /* complain_on_overflow */ | |
1101 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1102 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1103 | FALSE, /* partial_inplace */ | |
1104 | 0, /* src_mask */ | |
1105 | 0xfffc, /* dst_mask */ | |
1106 | FALSE), /* pcrel_offset */ | |
1107 | ||
1108 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1109 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1110 | 0, /* rightshift */ | |
1111 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1112 | 16, /* bitsize */ | |
1113 | FALSE, /* pc_relative */ | |
1114 | 0, /* bitpos */ | |
1115 | complain_overflow_dont, /* complain_on_overflow */ | |
1116 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1117 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1118 | FALSE, /* partial_inplace */ | |
1119 | 0, /* src_mask */ | |
1120 | 0xfffc, /* dst_mask */ | |
1121 | FALSE), /* pcrel_offset */ | |
1122 | ||
1123 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1124 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1125 | 0, /* rightshift */ | |
1126 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1127 | 16, /* bitsize */ | |
1128 | FALSE, /* pc_relative */ | |
1129 | 0, /* bitpos */ | |
1130 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1131 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1132 | "R_PPC64_SECTOFF_DS", /* name */ | |
1133 | FALSE, /* partial_inplace */ | |
1134 | 0, /* src_mask */ | |
1135 | 0xfffc, /* dst_mask */ | |
1136 | FALSE), /* pcrel_offset */ | |
1137 | ||
1138 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1139 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1140 | 0, /* rightshift */ | |
1141 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1142 | 16, /* bitsize */ | |
1143 | FALSE, /* pc_relative */ | |
1144 | 0, /* bitpos */ | |
1145 | complain_overflow_dont, /* complain_on_overflow */ | |
1146 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1147 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1148 | FALSE, /* partial_inplace */ | |
1149 | 0, /* src_mask */ | |
1150 | 0xfffc, /* dst_mask */ | |
1151 | FALSE), /* pcrel_offset */ | |
1152 | ||
1153 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1154 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1155 | 0, /* rightshift */ | |
1156 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1157 | 16, /* bitsize */ | |
1158 | FALSE, /* pc_relative */ | |
1159 | 0, /* bitpos */ | |
1160 | complain_overflow_signed, /* complain_on_overflow */ | |
1161 | ppc64_elf_toc_reloc, /* special_function */ | |
1162 | "R_PPC64_TOC16_DS", /* name */ | |
1163 | FALSE, /* partial_inplace */ | |
1164 | 0, /* src_mask */ | |
1165 | 0xfffc, /* dst_mask */ | |
1166 | FALSE), /* pcrel_offset */ | |
1167 | ||
1168 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1169 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1170 | 0, /* rightshift */ | |
1171 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1172 | 16, /* bitsize */ | |
1173 | FALSE, /* pc_relative */ | |
1174 | 0, /* bitpos */ | |
1175 | complain_overflow_dont, /* complain_on_overflow */ | |
1176 | ppc64_elf_toc_reloc, /* special_function */ | |
1177 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1178 | FALSE, /* partial_inplace */ | |
1179 | 0, /* src_mask */ | |
1180 | 0xfffc, /* dst_mask */ | |
1181 | FALSE), /* pcrel_offset */ | |
1182 | ||
1183 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1184 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1185 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1186 | 0, /* rightshift */ | |
1187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1188 | 16, /* bitsize */ | |
1189 | FALSE, /* pc_relative */ | |
1190 | 0, /* bitpos */ | |
1191 | complain_overflow_signed, /* complain_on_overflow */ | |
1192 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1193 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1194 | FALSE, /* partial_inplace */ | |
1195 | 0, /* src_mask */ | |
1196 | 0xfffc, /* dst_mask */ | |
1197 | FALSE), /* pcrel_offset */ | |
1198 | ||
1199 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1200 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1201 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1202 | 0, /* rightshift */ | |
1203 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1204 | 16, /* bitsize */ | |
1205 | FALSE, /* pc_relative */ | |
1206 | 0, /* bitpos */ | |
1207 | complain_overflow_dont, /* complain_on_overflow */ | |
1208 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1209 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1210 | FALSE, /* partial_inplace */ | |
1211 | 0, /* src_mask */ | |
1212 | 0xfffc, /* dst_mask */ | |
1213 | FALSE), /* pcrel_offset */ | |
1214 | ||
1215 | /* Marker reloc for TLS. */ | |
1216 | HOWTO (R_PPC64_TLS, | |
1217 | 0, /* rightshift */ | |
1218 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1219 | 32, /* bitsize */ | |
1220 | FALSE, /* pc_relative */ | |
1221 | 0, /* bitpos */ | |
1222 | complain_overflow_dont, /* complain_on_overflow */ | |
1223 | bfd_elf_generic_reloc, /* special_function */ | |
1224 | "R_PPC64_TLS", /* name */ | |
1225 | FALSE, /* partial_inplace */ | |
1226 | 0, /* src_mask */ | |
1227 | 0, /* dst_mask */ | |
1228 | FALSE), /* pcrel_offset */ | |
1229 | ||
1230 | /* Computes the load module index of the load module that contains the | |
1231 | definition of its TLS sym. */ | |
1232 | HOWTO (R_PPC64_DTPMOD64, | |
1233 | 0, /* rightshift */ | |
1234 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1235 | 64, /* bitsize */ | |
1236 | FALSE, /* pc_relative */ | |
1237 | 0, /* bitpos */ | |
1238 | complain_overflow_dont, /* complain_on_overflow */ | |
1239 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1240 | "R_PPC64_DTPMOD64", /* name */ | |
1241 | FALSE, /* partial_inplace */ | |
1242 | 0, /* src_mask */ | |
1243 | ONES (64), /* dst_mask */ | |
1244 | FALSE), /* pcrel_offset */ | |
1245 | ||
1246 | /* Computes a dtv-relative displacement, the difference between the value | |
1247 | of sym+add and the base address of the thread-local storage block that | |
1248 | contains the definition of sym, minus 0x8000. */ | |
1249 | HOWTO (R_PPC64_DTPREL64, | |
1250 | 0, /* rightshift */ | |
1251 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1252 | 64, /* bitsize */ | |
1253 | FALSE, /* pc_relative */ | |
1254 | 0, /* bitpos */ | |
1255 | complain_overflow_dont, /* complain_on_overflow */ | |
1256 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1257 | "R_PPC64_DTPREL64", /* name */ | |
1258 | FALSE, /* partial_inplace */ | |
1259 | 0, /* src_mask */ | |
1260 | ONES (64), /* dst_mask */ | |
1261 | FALSE), /* pcrel_offset */ | |
1262 | ||
1263 | /* A 16 bit dtprel reloc. */ | |
1264 | HOWTO (R_PPC64_DTPREL16, | |
1265 | 0, /* rightshift */ | |
1266 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1267 | 16, /* bitsize */ | |
1268 | FALSE, /* pc_relative */ | |
1269 | 0, /* bitpos */ | |
1270 | complain_overflow_signed, /* complain_on_overflow */ | |
1271 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1272 | "R_PPC64_DTPREL16", /* name */ | |
1273 | FALSE, /* partial_inplace */ | |
1274 | 0, /* src_mask */ | |
1275 | 0xffff, /* dst_mask */ | |
1276 | FALSE), /* pcrel_offset */ | |
1277 | ||
1278 | /* Like DTPREL16, but no overflow. */ | |
1279 | HOWTO (R_PPC64_DTPREL16_LO, | |
1280 | 0, /* rightshift */ | |
1281 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1282 | 16, /* bitsize */ | |
1283 | FALSE, /* pc_relative */ | |
1284 | 0, /* bitpos */ | |
1285 | complain_overflow_dont, /* complain_on_overflow */ | |
1286 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1287 | "R_PPC64_DTPREL16_LO", /* name */ | |
1288 | FALSE, /* partial_inplace */ | |
1289 | 0, /* src_mask */ | |
1290 | 0xffff, /* dst_mask */ | |
1291 | FALSE), /* pcrel_offset */ | |
1292 | ||
1293 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1294 | HOWTO (R_PPC64_DTPREL16_HI, | |
1295 | 16, /* rightshift */ | |
1296 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1297 | 16, /* bitsize */ | |
1298 | FALSE, /* pc_relative */ | |
1299 | 0, /* bitpos */ | |
1300 | complain_overflow_dont, /* complain_on_overflow */ | |
1301 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1302 | "R_PPC64_DTPREL16_HI", /* name */ | |
1303 | FALSE, /* partial_inplace */ | |
1304 | 0, /* src_mask */ | |
1305 | 0xffff, /* dst_mask */ | |
1306 | FALSE), /* pcrel_offset */ | |
1307 | ||
1308 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1309 | HOWTO (R_PPC64_DTPREL16_HA, | |
1310 | 16, /* rightshift */ | |
1311 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1312 | 16, /* bitsize */ | |
1313 | FALSE, /* pc_relative */ | |
1314 | 0, /* bitpos */ | |
1315 | complain_overflow_dont, /* complain_on_overflow */ | |
1316 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1317 | "R_PPC64_DTPREL16_HA", /* name */ | |
1318 | FALSE, /* partial_inplace */ | |
1319 | 0, /* src_mask */ | |
1320 | 0xffff, /* dst_mask */ | |
1321 | FALSE), /* pcrel_offset */ | |
1322 | ||
1323 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1324 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1325 | 32, /* rightshift */ | |
1326 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1327 | 16, /* bitsize */ | |
1328 | FALSE, /* pc_relative */ | |
1329 | 0, /* bitpos */ | |
1330 | complain_overflow_dont, /* complain_on_overflow */ | |
1331 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1332 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1333 | FALSE, /* partial_inplace */ | |
1334 | 0, /* src_mask */ | |
1335 | 0xffff, /* dst_mask */ | |
1336 | FALSE), /* pcrel_offset */ | |
1337 | ||
1338 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1339 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1340 | 32, /* rightshift */ | |
1341 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1342 | 16, /* bitsize */ | |
1343 | FALSE, /* pc_relative */ | |
1344 | 0, /* bitpos */ | |
1345 | complain_overflow_dont, /* complain_on_overflow */ | |
1346 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1347 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1348 | FALSE, /* partial_inplace */ | |
1349 | 0, /* src_mask */ | |
1350 | 0xffff, /* dst_mask */ | |
1351 | FALSE), /* pcrel_offset */ | |
1352 | ||
1353 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1354 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1355 | 48, /* rightshift */ | |
1356 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1357 | 16, /* bitsize */ | |
1358 | FALSE, /* pc_relative */ | |
1359 | 0, /* bitpos */ | |
1360 | complain_overflow_dont, /* complain_on_overflow */ | |
1361 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1362 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1363 | FALSE, /* partial_inplace */ | |
1364 | 0, /* src_mask */ | |
1365 | 0xffff, /* dst_mask */ | |
1366 | FALSE), /* pcrel_offset */ | |
1367 | ||
1368 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1369 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1370 | 48, /* rightshift */ | |
1371 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1372 | 16, /* bitsize */ | |
1373 | FALSE, /* pc_relative */ | |
1374 | 0, /* bitpos */ | |
1375 | complain_overflow_dont, /* complain_on_overflow */ | |
1376 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1377 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1378 | FALSE, /* partial_inplace */ | |
1379 | 0, /* src_mask */ | |
1380 | 0xffff, /* dst_mask */ | |
1381 | FALSE), /* pcrel_offset */ | |
1382 | ||
1383 | /* Like DTPREL16, but for insns with a DS field. */ | |
1384 | HOWTO (R_PPC64_DTPREL16_DS, | |
1385 | 0, /* rightshift */ | |
1386 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1387 | 16, /* bitsize */ | |
1388 | FALSE, /* pc_relative */ | |
1389 | 0, /* bitpos */ | |
1390 | complain_overflow_signed, /* complain_on_overflow */ | |
1391 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1392 | "R_PPC64_DTPREL16_DS", /* name */ | |
1393 | FALSE, /* partial_inplace */ | |
1394 | 0, /* src_mask */ | |
1395 | 0xfffc, /* dst_mask */ | |
1396 | FALSE), /* pcrel_offset */ | |
1397 | ||
1398 | /* Like DTPREL16_DS, but no overflow. */ | |
1399 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1400 | 0, /* rightshift */ | |
1401 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1402 | 16, /* bitsize */ | |
1403 | FALSE, /* pc_relative */ | |
1404 | 0, /* bitpos */ | |
1405 | complain_overflow_dont, /* complain_on_overflow */ | |
1406 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1407 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1408 | FALSE, /* partial_inplace */ | |
1409 | 0, /* src_mask */ | |
1410 | 0xfffc, /* dst_mask */ | |
1411 | FALSE), /* pcrel_offset */ | |
1412 | ||
1413 | /* Computes a tp-relative displacement, the difference between the value of | |
1414 | sym+add and the value of the thread pointer (r13). */ | |
1415 | HOWTO (R_PPC64_TPREL64, | |
1416 | 0, /* rightshift */ | |
1417 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1418 | 64, /* bitsize */ | |
1419 | FALSE, /* pc_relative */ | |
1420 | 0, /* bitpos */ | |
1421 | complain_overflow_dont, /* complain_on_overflow */ | |
1422 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1423 | "R_PPC64_TPREL64", /* name */ | |
1424 | FALSE, /* partial_inplace */ | |
1425 | 0, /* src_mask */ | |
1426 | ONES (64), /* dst_mask */ | |
1427 | FALSE), /* pcrel_offset */ | |
1428 | ||
1429 | /* A 16 bit tprel reloc. */ | |
1430 | HOWTO (R_PPC64_TPREL16, | |
1431 | 0, /* rightshift */ | |
1432 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1433 | 16, /* bitsize */ | |
1434 | FALSE, /* pc_relative */ | |
1435 | 0, /* bitpos */ | |
1436 | complain_overflow_signed, /* complain_on_overflow */ | |
1437 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1438 | "R_PPC64_TPREL16", /* name */ | |
1439 | FALSE, /* partial_inplace */ | |
1440 | 0, /* src_mask */ | |
1441 | 0xffff, /* dst_mask */ | |
1442 | FALSE), /* pcrel_offset */ | |
1443 | ||
1444 | /* Like TPREL16, but no overflow. */ | |
1445 | HOWTO (R_PPC64_TPREL16_LO, | |
1446 | 0, /* rightshift */ | |
1447 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1448 | 16, /* bitsize */ | |
1449 | FALSE, /* pc_relative */ | |
1450 | 0, /* bitpos */ | |
1451 | complain_overflow_dont, /* complain_on_overflow */ | |
1452 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1453 | "R_PPC64_TPREL16_LO", /* name */ | |
1454 | FALSE, /* partial_inplace */ | |
1455 | 0, /* src_mask */ | |
1456 | 0xffff, /* dst_mask */ | |
1457 | FALSE), /* pcrel_offset */ | |
1458 | ||
1459 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1460 | HOWTO (R_PPC64_TPREL16_HI, | |
1461 | 16, /* rightshift */ | |
1462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1463 | 16, /* bitsize */ | |
1464 | FALSE, /* pc_relative */ | |
1465 | 0, /* bitpos */ | |
1466 | complain_overflow_dont, /* complain_on_overflow */ | |
1467 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1468 | "R_PPC64_TPREL16_HI", /* name */ | |
1469 | FALSE, /* partial_inplace */ | |
1470 | 0, /* src_mask */ | |
1471 | 0xffff, /* dst_mask */ | |
1472 | FALSE), /* pcrel_offset */ | |
1473 | ||
1474 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1475 | HOWTO (R_PPC64_TPREL16_HA, | |
1476 | 16, /* rightshift */ | |
1477 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1478 | 16, /* bitsize */ | |
1479 | FALSE, /* pc_relative */ | |
1480 | 0, /* bitpos */ | |
1481 | complain_overflow_dont, /* complain_on_overflow */ | |
1482 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1483 | "R_PPC64_TPREL16_HA", /* name */ | |
1484 | FALSE, /* partial_inplace */ | |
1485 | 0, /* src_mask */ | |
1486 | 0xffff, /* dst_mask */ | |
1487 | FALSE), /* pcrel_offset */ | |
1488 | ||
1489 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1490 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1491 | 32, /* rightshift */ | |
1492 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1493 | 16, /* bitsize */ | |
1494 | FALSE, /* pc_relative */ | |
1495 | 0, /* bitpos */ | |
1496 | complain_overflow_dont, /* complain_on_overflow */ | |
1497 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1498 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1499 | FALSE, /* partial_inplace */ | |
1500 | 0, /* src_mask */ | |
1501 | 0xffff, /* dst_mask */ | |
1502 | FALSE), /* pcrel_offset */ | |
1503 | ||
1504 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1505 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1506 | 32, /* rightshift */ | |
1507 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1508 | 16, /* bitsize */ | |
1509 | FALSE, /* pc_relative */ | |
1510 | 0, /* bitpos */ | |
1511 | complain_overflow_dont, /* complain_on_overflow */ | |
1512 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1513 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1514 | FALSE, /* partial_inplace */ | |
1515 | 0, /* src_mask */ | |
1516 | 0xffff, /* dst_mask */ | |
1517 | FALSE), /* pcrel_offset */ | |
1518 | ||
1519 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1520 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1521 | 48, /* rightshift */ | |
1522 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1523 | 16, /* bitsize */ | |
1524 | FALSE, /* pc_relative */ | |
1525 | 0, /* bitpos */ | |
1526 | complain_overflow_dont, /* complain_on_overflow */ | |
1527 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1528 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1529 | FALSE, /* partial_inplace */ | |
1530 | 0, /* src_mask */ | |
1531 | 0xffff, /* dst_mask */ | |
1532 | FALSE), /* pcrel_offset */ | |
1533 | ||
1534 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1535 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1536 | 48, /* rightshift */ | |
1537 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1538 | 16, /* bitsize */ | |
1539 | FALSE, /* pc_relative */ | |
1540 | 0, /* bitpos */ | |
1541 | complain_overflow_dont, /* complain_on_overflow */ | |
1542 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1543 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1544 | FALSE, /* partial_inplace */ | |
1545 | 0, /* src_mask */ | |
1546 | 0xffff, /* dst_mask */ | |
1547 | FALSE), /* pcrel_offset */ | |
1548 | ||
1549 | /* Like TPREL16, but for insns with a DS field. */ | |
1550 | HOWTO (R_PPC64_TPREL16_DS, | |
1551 | 0, /* rightshift */ | |
1552 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1553 | 16, /* bitsize */ | |
1554 | FALSE, /* pc_relative */ | |
1555 | 0, /* bitpos */ | |
1556 | complain_overflow_signed, /* complain_on_overflow */ | |
1557 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1558 | "R_PPC64_TPREL16_DS", /* name */ | |
1559 | FALSE, /* partial_inplace */ | |
1560 | 0, /* src_mask */ | |
1561 | 0xfffc, /* dst_mask */ | |
1562 | FALSE), /* pcrel_offset */ | |
1563 | ||
1564 | /* Like TPREL16_DS, but no overflow. */ | |
1565 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1566 | 0, /* rightshift */ | |
1567 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1568 | 16, /* bitsize */ | |
1569 | FALSE, /* pc_relative */ | |
1570 | 0, /* bitpos */ | |
1571 | complain_overflow_dont, /* complain_on_overflow */ | |
1572 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1573 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1574 | FALSE, /* partial_inplace */ | |
1575 | 0, /* src_mask */ | |
1576 | 0xfffc, /* dst_mask */ | |
1577 | FALSE), /* pcrel_offset */ | |
1578 | ||
1579 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1580 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1581 | to the first entry relative to the TOC base (r2). */ | |
1582 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1583 | 0, /* rightshift */ | |
1584 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1585 | 16, /* bitsize */ | |
1586 | FALSE, /* pc_relative */ | |
1587 | 0, /* bitpos */ | |
1588 | complain_overflow_signed, /* complain_on_overflow */ | |
1589 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1590 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1591 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1592 | 0, /* src_mask */ |
1593 | 0xffff, /* dst_mask */ | |
b34976b6 | 1594 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1595 | |
411e1bfb AM |
1596 | /* Like GOT_TLSGD16, but no overflow. */ |
1597 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1598 | 0, /* rightshift */ |
1599 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1600 | 16, /* bitsize */ | |
b34976b6 | 1601 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1602 | 0, /* bitpos */ |
1603 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1604 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1605 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1606 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1607 | 0, /* src_mask */ |
1608 | 0xffff, /* dst_mask */ | |
b34976b6 | 1609 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1610 | |
411e1bfb AM |
1611 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1612 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1613 | 16, /* rightshift */ |
1614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1615 | 16, /* bitsize */ | |
b34976b6 | 1616 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1617 | 0, /* bitpos */ |
1618 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1619 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1620 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1621 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1622 | 0, /* src_mask */ |
1623 | 0xffff, /* dst_mask */ | |
b34976b6 | 1624 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1625 | |
411e1bfb AM |
1626 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1627 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1628 | 16, /* rightshift */ |
1629 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1630 | 16, /* bitsize */ | |
b34976b6 | 1631 | FALSE, /* pc_relative */ |
5bd4f169 | 1632 | 0, /* bitpos */ |
411e1bfb | 1633 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1634 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1635 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1636 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1637 | 0, /* src_mask */ |
1638 | 0xffff, /* dst_mask */ | |
b34976b6 | 1639 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1640 | |
411e1bfb AM |
1641 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1642 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1643 | first entry relative to the TOC base (r2). */ | |
1644 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1645 | 0, /* rightshift */ |
1646 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1647 | 16, /* bitsize */ | |
b34976b6 | 1648 | FALSE, /* pc_relative */ |
5bd4f169 | 1649 | 0, /* bitpos */ |
411e1bfb AM |
1650 | complain_overflow_signed, /* complain_on_overflow */ |
1651 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1652 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1653 | FALSE, /* partial_inplace */ |
d006db6c | 1654 | 0, /* src_mask */ |
411e1bfb | 1655 | 0xffff, /* dst_mask */ |
b34976b6 | 1656 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1657 | |
411e1bfb AM |
1658 | /* Like GOT_TLSLD16, but no overflow. */ |
1659 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1660 | 0, /* rightshift */ |
1661 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1662 | 16, /* bitsize */ | |
b34976b6 | 1663 | FALSE, /* pc_relative */ |
5bd4f169 | 1664 | 0, /* bitpos */ |
411e1bfb AM |
1665 | complain_overflow_dont, /* complain_on_overflow */ |
1666 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1667 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1668 | FALSE, /* partial_inplace */ |
d006db6c | 1669 | 0, /* src_mask */ |
411e1bfb | 1670 | 0xffff, /* dst_mask */ |
b34976b6 | 1671 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1672 | |
411e1bfb AM |
1673 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1674 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1675 | 16, /* rightshift */ | |
5bd4f169 AM |
1676 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1677 | 16, /* bitsize */ | |
b34976b6 | 1678 | FALSE, /* pc_relative */ |
5bd4f169 | 1679 | 0, /* bitpos */ |
411e1bfb | 1680 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1681 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1682 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1683 | FALSE, /* partial_inplace */ |
d006db6c | 1684 | 0, /* src_mask */ |
411e1bfb | 1685 | 0xffff, /* dst_mask */ |
b34976b6 | 1686 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1687 | |
411e1bfb AM |
1688 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1689 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1690 | 16, /* rightshift */ | |
5bd4f169 AM |
1691 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1692 | 16, /* bitsize */ | |
b34976b6 | 1693 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1694 | 0, /* bitpos */ |
1695 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1696 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1697 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1698 | FALSE, /* partial_inplace */ |
d006db6c | 1699 | 0, /* src_mask */ |
411e1bfb | 1700 | 0xffff, /* dst_mask */ |
b34976b6 | 1701 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1702 | |
411e1bfb AM |
1703 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1704 | the offset to the entry relative to the TOC base (r2). */ | |
1705 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1706 | 0, /* rightshift */ |
1707 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1708 | 16, /* bitsize */ | |
b34976b6 | 1709 | FALSE, /* pc_relative */ |
5bd4f169 | 1710 | 0, /* bitpos */ |
411e1bfb | 1711 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1712 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1713 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1714 | FALSE, /* partial_inplace */ |
d006db6c | 1715 | 0, /* src_mask */ |
5bd4f169 | 1716 | 0xfffc, /* dst_mask */ |
b34976b6 | 1717 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1718 | |
411e1bfb AM |
1719 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1720 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1721 | 0, /* rightshift */ |
c061c2d8 AM |
1722 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1723 | 16, /* bitsize */ | |
b34976b6 | 1724 | FALSE, /* pc_relative */ |
5bd4f169 | 1725 | 0, /* bitpos */ |
411e1bfb AM |
1726 | complain_overflow_dont, /* complain_on_overflow */ |
1727 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1728 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1729 | FALSE, /* partial_inplace */ |
d006db6c | 1730 | 0, /* src_mask */ |
c061c2d8 | 1731 | 0xfffc, /* dst_mask */ |
b34976b6 | 1732 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1733 | |
411e1bfb AM |
1734 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1735 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1736 | 16, /* rightshift */ | |
5bd4f169 AM |
1737 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1738 | 16, /* bitsize */ | |
b34976b6 | 1739 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1740 | 0, /* bitpos */ |
1741 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1742 | ppc64_elf_unhandled_reloc, /* special_function */ |
1743 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1744 | FALSE, /* partial_inplace */ |
d006db6c | 1745 | 0, /* src_mask */ |
411e1bfb | 1746 | 0xffff, /* dst_mask */ |
b34976b6 | 1747 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1748 | |
411e1bfb AM |
1749 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1750 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1751 | 16, /* rightshift */ | |
1752 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1753 | 16, /* bitsize */ | |
1754 | FALSE, /* pc_relative */ | |
1755 | 0, /* bitpos */ | |
1756 | complain_overflow_dont, /* complain_on_overflow */ | |
1757 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1758 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1759 | FALSE, /* partial_inplace */ | |
1760 | 0, /* src_mask */ | |
1761 | 0xffff, /* dst_mask */ | |
1762 | FALSE), /* pcrel_offset */ | |
1763 | ||
1764 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1765 | offset to the entry relative to the TOC base (r2). */ | |
1766 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1767 | 0, /* rightshift */ |
1768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1769 | 16, /* bitsize */ | |
b34976b6 | 1770 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1771 | 0, /* bitpos */ |
1772 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1773 | ppc64_elf_unhandled_reloc, /* special_function */ |
1774 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1775 | FALSE, /* partial_inplace */ |
d006db6c | 1776 | 0, /* src_mask */ |
ad8e1ba5 | 1777 | 0xfffc, /* dst_mask */ |
b34976b6 | 1778 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1779 | |
411e1bfb AM |
1780 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1781 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1782 | 0, /* rightshift */ |
1783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1784 | 16, /* bitsize */ | |
b34976b6 | 1785 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1786 | 0, /* bitpos */ |
1787 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1788 | ppc64_elf_unhandled_reloc, /* special_function */ |
1789 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1790 | FALSE, /* partial_inplace */ |
d006db6c | 1791 | 0, /* src_mask */ |
ad8e1ba5 | 1792 | 0xfffc, /* dst_mask */ |
b34976b6 | 1793 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1794 | |
411e1bfb AM |
1795 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1796 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1797 | 16, /* rightshift */ | |
5bd4f169 AM |
1798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1799 | 16, /* bitsize */ | |
b34976b6 | 1800 | FALSE, /* pc_relative */ |
5bd4f169 | 1801 | 0, /* bitpos */ |
411e1bfb | 1802 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1803 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1804 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1805 | FALSE, /* partial_inplace */ |
d006db6c | 1806 | 0, /* src_mask */ |
411e1bfb | 1807 | 0xffff, /* dst_mask */ |
b34976b6 | 1808 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1809 | |
411e1bfb AM |
1810 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1811 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1812 | 16, /* rightshift */ | |
5bd4f169 AM |
1813 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1814 | 16, /* bitsize */ | |
b34976b6 | 1815 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1816 | 0, /* bitpos */ |
1817 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1818 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1819 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1820 | FALSE, /* partial_inplace */ |
d006db6c | 1821 | 0, /* src_mask */ |
411e1bfb | 1822 | 0xffff, /* dst_mask */ |
b34976b6 | 1823 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1824 | |
1825 | /* GNU extension to record C++ vtable hierarchy. */ | |
1826 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1827 | 0, /* rightshift */ | |
1828 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1829 | 0, /* bitsize */ | |
b34976b6 | 1830 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1831 | 0, /* bitpos */ |
1832 | complain_overflow_dont, /* complain_on_overflow */ | |
1833 | NULL, /* special_function */ | |
1834 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1835 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1836 | 0, /* src_mask */ |
1837 | 0, /* dst_mask */ | |
b34976b6 | 1838 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1839 | |
1840 | /* GNU extension to record C++ vtable member usage. */ | |
1841 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1842 | 0, /* rightshift */ | |
1843 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1844 | 0, /* bitsize */ | |
b34976b6 | 1845 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1846 | 0, /* bitpos */ |
1847 | complain_overflow_dont, /* complain_on_overflow */ | |
1848 | NULL, /* special_function */ | |
1849 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1850 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1851 | 0, /* src_mask */ |
1852 | 0, /* dst_mask */ | |
b34976b6 | 1853 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1854 | }; |
1855 | ||
1856 | \f | |
1857 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1858 | be done. */ | |
1859 | ||
1860 | static void | |
1861 | ppc_howto_init () | |
1862 | { | |
1863 | unsigned int i, type; | |
1864 | ||
1865 | for (i = 0; | |
1866 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1867 | i++) | |
1868 | { | |
1869 | type = ppc64_elf_howto_raw[i].type; | |
1870 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1871 | / sizeof (ppc64_elf_howto_table[0]))); | |
1872 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | static reloc_howto_type * | |
1877 | ppc64_elf_reloc_type_lookup (abfd, code) | |
1878 | bfd *abfd ATTRIBUTE_UNUSED; | |
1879 | bfd_reloc_code_real_type code; | |
1880 | { | |
411e1bfb | 1881 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1882 | |
1883 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1884 | /* Initialize howto table if needed. */ | |
1885 | ppc_howto_init (); | |
1886 | ||
1887 | switch ((int) code) | |
1888 | { | |
1889 | default: | |
1890 | return (reloc_howto_type *) NULL; | |
1891 | ||
411e1bfb AM |
1892 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1893 | break; | |
1894 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1895 | break; | |
1896 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1897 | break; | |
1898 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1899 | break; | |
1900 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1901 | break; | |
1902 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1903 | break; | |
1904 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1905 | break; |
411e1bfb | 1906 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1907 | break; |
411e1bfb | 1908 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1909 | break; |
411e1bfb | 1910 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1911 | break; |
411e1bfb | 1912 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1913 | break; |
411e1bfb | 1914 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1967 | break; |
411e1bfb | 1968 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1969 | break; |
411e1bfb | 1970 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1971 | break; |
411e1bfb | 1972 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1973 | break; |
411e1bfb | 1974 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1975 | break; |
411e1bfb | 1976 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1977 | break; |
411e1bfb | 1978 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1979 | break; |
411e1bfb | 1980 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1981 | break; |
411e1bfb | 1982 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1983 | break; |
411e1bfb | 1984 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1985 | break; |
411e1bfb | 1986 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1987 | break; |
411e1bfb | 1988 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1989 | break; |
411e1bfb | 1990 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 1991 | break; |
411e1bfb | 1992 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 1993 | break; |
411e1bfb | 1994 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 1995 | break; |
411e1bfb | 1996 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 1997 | break; |
411e1bfb | 1998 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 1999 | break; |
411e1bfb | 2000 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 2001 | break; |
411e1bfb | 2002 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 2003 | break; |
411e1bfb | 2004 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 2005 | break; |
411e1bfb | 2006 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 2007 | break; |
411e1bfb | 2008 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 2009 | break; |
411e1bfb | 2010 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 2011 | break; |
411e1bfb | 2012 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2013 | break; |
411e1bfb | 2014 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2015 | break; |
411e1bfb | 2016 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2017 | break; |
411e1bfb | 2018 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2019 | break; |
411e1bfb | 2020 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2021 | break; |
411e1bfb | 2022 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2023 | break; |
411e1bfb AM |
2024 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2025 | break; | |
2026 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2027 | break; | |
2028 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2029 | break; | |
2030 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2031 | break; | |
2032 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2033 | break; | |
2034 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2035 | break; | |
2036 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2037 | break; | |
2038 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2039 | break; | |
2040 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2041 | break; | |
2042 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2043 | break; | |
2044 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2045 | break; | |
2046 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2047 | break; | |
2048 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2049 | break; | |
2050 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2051 | break; | |
2052 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2053 | break; | |
2054 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2055 | break; | |
2056 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2057 | break; | |
2058 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2059 | break; | |
2060 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2061 | break; | |
2062 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2063 | break; | |
2064 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2065 | break; | |
2066 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2067 | break; | |
2068 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2069 | break; | |
2070 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2071 | break; | |
2072 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2073 | break; | |
2074 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2075 | break; | |
2076 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2077 | break; | |
2078 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2079 | break; | |
2080 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2081 | break; | |
2082 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2083 | break; | |
2084 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2085 | break; | |
2086 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2087 | break; | |
2088 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2089 | break; | |
2090 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2091 | break; | |
2092 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2093 | break; |
2094 | } | |
2095 | ||
411e1bfb | 2096 | return ppc64_elf_howto_table[(int) r]; |
5bd4f169 AM |
2097 | }; |
2098 | ||
2099 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2100 | ||
2101 | static void | |
2102 | ppc64_elf_info_to_howto (abfd, cache_ptr, dst) | |
2103 | bfd *abfd ATTRIBUTE_UNUSED; | |
2104 | arelent *cache_ptr; | |
947216bf | 2105 | Elf_Internal_Rela *dst; |
5bd4f169 | 2106 | { |
65f38f15 AM |
2107 | unsigned int type; |
2108 | ||
ef60b7ff | 2109 | /* Initialize howto table if needed. */ |
5bd4f169 | 2110 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2111 | ppc_howto_init (); |
2112 | ||
65f38f15 AM |
2113 | type = ELF64_R_TYPE (dst->r_info); |
2114 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2115 | / sizeof (ppc64_elf_howto_table[0]))); | |
2116 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2117 | } |
2118 | ||
04c9666a | 2119 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2120 | |
2121 | static bfd_reloc_status_type | |
805fc799 AM |
2122 | ppc64_elf_ha_reloc (abfd, reloc_entry, symbol, data, |
2123 | input_section, output_bfd, error_message) | |
2124 | bfd *abfd; | |
5bd4f169 AM |
2125 | arelent *reloc_entry; |
2126 | asymbol *symbol; | |
805fc799 | 2127 | PTR data; |
5bd4f169 AM |
2128 | asection *input_section; |
2129 | bfd *output_bfd; | |
805fc799 | 2130 | char **error_message; |
5bd4f169 | 2131 | { |
805fc799 AM |
2132 | /* If this is a relocatable link (output_bfd test tells us), just |
2133 | call the generic function. Any adjustment will be done at final | |
2134 | link time. */ | |
2135 | if (output_bfd != NULL) | |
cedb70c5 | 2136 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2137 | input_section, output_bfd, error_message); |
2138 | ||
2139 | /* Adjust the addend for sign extension of the low 16 bits. | |
2140 | We won't actually be using the low 16 bits, so trashing them | |
2141 | doesn't matter. */ | |
2142 | reloc_entry->addend += 0x8000; | |
2143 | return bfd_reloc_continue; | |
2144 | } | |
5bd4f169 | 2145 | |
805fc799 AM |
2146 | static bfd_reloc_status_type |
2147 | ppc64_elf_brtaken_reloc (abfd, reloc_entry, symbol, data, | |
2148 | input_section, output_bfd, error_message) | |
2149 | bfd *abfd; | |
2150 | arelent *reloc_entry; | |
2151 | asymbol *symbol; | |
2152 | PTR data; | |
2153 | asection *input_section; | |
2154 | bfd *output_bfd; | |
2155 | char **error_message; | |
2156 | { | |
2157 | long insn; | |
04c9666a | 2158 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2159 | bfd_size_type octets; |
2160 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2161 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2162 | |
2163 | /* If this is a relocatable link (output_bfd test tells us), just | |
2164 | call the generic function. Any adjustment will be done at final | |
2165 | link time. */ | |
5bd4f169 | 2166 | if (output_bfd != NULL) |
cedb70c5 | 2167 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2168 | input_section, output_bfd, error_message); |
2169 | ||
2170 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2171 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2172 | insn &= ~(0x01 << 21); | |
04c9666a | 2173 | r_type = (enum elf_ppc64_reloc_type) reloc_entry->howto->type; |
805fc799 AM |
2174 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2175 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2176 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2177 | |
2178 | if (is_power4) | |
5bd4f169 | 2179 | { |
805fc799 AM |
2180 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2181 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2182 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2183 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2184 | insn |= 0x02 << 21; | |
2185 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2186 | insn |= 0x08 << 21; | |
2187 | else | |
2188 | return bfd_reloc_continue; | |
5bd4f169 | 2189 | } |
805fc799 AM |
2190 | else |
2191 | { | |
2192 | bfd_vma target = 0; | |
2193 | bfd_vma from; | |
5bd4f169 | 2194 | |
805fc799 AM |
2195 | if (!bfd_is_com_section (symbol->section)) |
2196 | target = symbol->value; | |
2197 | target += symbol->section->output_section->vma; | |
2198 | target += symbol->section->output_offset; | |
2199 | target += reloc_entry->addend; | |
5bd4f169 | 2200 | |
805fc799 AM |
2201 | from = (reloc_entry->address |
2202 | + input_section->output_offset | |
2203 | + input_section->output_section->vma); | |
5bd4f169 | 2204 | |
805fc799 AM |
2205 | /* Invert 'y' bit if not the default. */ |
2206 | if ((bfd_signed_vma) (target - from) < 0) | |
2207 | insn ^= 0x01 << 21; | |
2208 | } | |
2209 | bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + octets); | |
2210 | return bfd_reloc_continue; | |
2211 | } | |
5bd4f169 | 2212 | |
805fc799 AM |
2213 | static bfd_reloc_status_type |
2214 | ppc64_elf_sectoff_reloc (abfd, reloc_entry, symbol, data, | |
2215 | input_section, output_bfd, error_message) | |
2216 | bfd *abfd; | |
2217 | arelent *reloc_entry; | |
2218 | asymbol *symbol; | |
2219 | PTR data; | |
2220 | asection *input_section; | |
2221 | bfd *output_bfd; | |
2222 | char **error_message; | |
2223 | { | |
2224 | /* If this is a relocatable link (output_bfd test tells us), just | |
2225 | call the generic function. Any adjustment will be done at final | |
2226 | link time. */ | |
2227 | if (output_bfd != NULL) | |
cedb70c5 | 2228 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2229 | input_section, output_bfd, error_message); |
5bd4f169 | 2230 | |
805fc799 AM |
2231 | /* Subtract the symbol section base address. */ |
2232 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2233 | return bfd_reloc_continue; |
2234 | } | |
2235 | ||
805fc799 AM |
2236 | static bfd_reloc_status_type |
2237 | ppc64_elf_sectoff_ha_reloc (abfd, reloc_entry, symbol, data, | |
2238 | input_section, output_bfd, error_message) | |
2239 | bfd *abfd; | |
2240 | arelent *reloc_entry; | |
2241 | asymbol *symbol; | |
2242 | PTR data; | |
2243 | asection *input_section; | |
2244 | bfd *output_bfd; | |
2245 | char **error_message; | |
2246 | { | |
2247 | /* If this is a relocatable link (output_bfd test tells us), just | |
2248 | call the generic function. Any adjustment will be done at final | |
2249 | link time. */ | |
2250 | if (output_bfd != NULL) | |
cedb70c5 | 2251 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2252 | input_section, output_bfd, error_message); |
2253 | ||
2254 | /* Subtract the symbol section base address. */ | |
2255 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2256 | ||
2257 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2258 | reloc_entry->addend += 0x8000; | |
2259 | return bfd_reloc_continue; | |
2260 | } | |
2261 | ||
2262 | static bfd_reloc_status_type | |
2263 | ppc64_elf_toc_reloc (abfd, reloc_entry, symbol, data, | |
2264 | input_section, output_bfd, error_message) | |
2265 | bfd *abfd; | |
2266 | arelent *reloc_entry; | |
2267 | asymbol *symbol; | |
2268 | PTR data; | |
2269 | asection *input_section; | |
2270 | bfd *output_bfd; | |
2271 | char **error_message; | |
2272 | { | |
2273 | bfd_vma TOCstart; | |
2274 | ||
2275 | /* If this is a relocatable link (output_bfd test tells us), just | |
2276 | call the generic function. Any adjustment will be done at final | |
2277 | link time. */ | |
2278 | if (output_bfd != NULL) | |
cedb70c5 | 2279 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2280 | input_section, output_bfd, error_message); |
2281 | ||
2282 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2283 | if (TOCstart == 0) | |
2284 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2285 | ||
2286 | /* Subtract the TOC base address. */ | |
2287 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2288 | return bfd_reloc_continue; | |
2289 | } | |
2290 | ||
2291 | static bfd_reloc_status_type | |
2292 | ppc64_elf_toc_ha_reloc (abfd, reloc_entry, symbol, data, | |
2293 | input_section, output_bfd, error_message) | |
2294 | bfd *abfd; | |
2295 | arelent *reloc_entry; | |
2296 | asymbol *symbol; | |
2297 | PTR data; | |
2298 | asection *input_section; | |
2299 | bfd *output_bfd; | |
2300 | char **error_message; | |
2301 | { | |
2302 | bfd_vma TOCstart; | |
2303 | ||
2304 | /* If this is a relocatable link (output_bfd test tells us), just | |
2305 | call the generic function. Any adjustment will be done at final | |
2306 | link time. */ | |
2307 | if (output_bfd != NULL) | |
cedb70c5 | 2308 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2309 | input_section, output_bfd, error_message); |
2310 | ||
2311 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2312 | if (TOCstart == 0) | |
2313 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2314 | ||
2315 | /* Subtract the TOC base address. */ | |
2316 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2317 | ||
2318 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2319 | reloc_entry->addend += 0x8000; | |
2320 | return bfd_reloc_continue; | |
2321 | } | |
2322 | ||
2323 | static bfd_reloc_status_type | |
2324 | ppc64_elf_toc64_reloc (abfd, reloc_entry, symbol, data, | |
2325 | input_section, output_bfd, error_message) | |
2326 | bfd *abfd; | |
2327 | arelent *reloc_entry; | |
2328 | asymbol *symbol; | |
2329 | PTR data; | |
2330 | asection *input_section; | |
2331 | bfd *output_bfd; | |
2332 | char **error_message; | |
2333 | { | |
2334 | bfd_vma TOCstart; | |
2335 | bfd_size_type octets; | |
2336 | ||
2337 | /* If this is a relocatable link (output_bfd test tells us), just | |
2338 | call the generic function. Any adjustment will be done at final | |
2339 | link time. */ | |
2340 | if (output_bfd != NULL) | |
cedb70c5 | 2341 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2342 | input_section, output_bfd, error_message); |
2343 | ||
2344 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2345 | if (TOCstart == 0) | |
2346 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2347 | ||
2348 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2349 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2350 | return bfd_reloc_ok; | |
2351 | } | |
2352 | ||
2353 | static bfd_reloc_status_type | |
2354 | ppc64_elf_unhandled_reloc (abfd, reloc_entry, symbol, data, | |
2355 | input_section, output_bfd, error_message) | |
2356 | bfd *abfd; | |
2357 | arelent *reloc_entry; | |
2358 | asymbol *symbol; | |
2359 | PTR data; | |
2360 | asection *input_section; | |
2361 | bfd *output_bfd; | |
2362 | char **error_message; | |
2363 | { | |
2364 | /* If this is a relocatable link (output_bfd test tells us), just | |
2365 | call the generic function. Any adjustment will be done at final | |
2366 | link time. */ | |
2367 | if (output_bfd != NULL) | |
cedb70c5 | 2368 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2369 | input_section, output_bfd, error_message); |
2370 | ||
2371 | if (error_message != NULL) | |
2372 | { | |
2373 | static char buf[60]; | |
2374 | sprintf (buf, "generic linker can't handle %s", | |
2375 | reloc_entry->howto->name); | |
2376 | *error_message = buf; | |
2377 | } | |
2378 | return bfd_reloc_dangerous; | |
2379 | } | |
2380 | ||
feee612b AM |
2381 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2382 | default is 32 bit. */ | |
2383 | ||
b34976b6 | 2384 | static bfd_boolean |
feee612b AM |
2385 | ppc64_elf_object_p (abfd) |
2386 | bfd *abfd; | |
2387 | { | |
2388 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2389 | { | |
2390 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2391 | ||
2392 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2393 | { | |
2394 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2395 | abfd->arch_info = abfd->arch_info->next; | |
2396 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2397 | } | |
2398 | } | |
b34976b6 | 2399 | return TRUE; |
feee612b AM |
2400 | } |
2401 | ||
5bd4f169 AM |
2402 | /* Merge backend specific data from an object file to the output |
2403 | object file when linking. */ | |
2f6d9989 | 2404 | |
b34976b6 | 2405 | static bfd_boolean |
5bd4f169 AM |
2406 | ppc64_elf_merge_private_bfd_data (ibfd, obfd) |
2407 | bfd *ibfd; | |
2408 | bfd *obfd; | |
2409 | { | |
5bd4f169 AM |
2410 | /* Check if we have the same endianess. */ |
2411 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2412 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2413 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2414 | { | |
2415 | const char *msg; | |
2416 | ||
2417 | if (bfd_big_endian (ibfd)) | |
2418 | msg = _("%s: compiled for a big endian system and target is little endian"); | |
2419 | else | |
2420 | msg = _("%s: compiled for a little endian system and target is big endian"); | |
2421 | ||
8f615d07 | 2422 | (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd)); |
5bd4f169 AM |
2423 | |
2424 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2425 | return FALSE; |
5bd4f169 AM |
2426 | } |
2427 | ||
b34976b6 | 2428 | return TRUE; |
5bd4f169 | 2429 | } |
f0abc2a1 AM |
2430 | |
2431 | struct _ppc64_elf_section_data | |
2432 | { | |
2433 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2434 | |
2435 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2436 | union |
2437 | { | |
411e1bfb | 2438 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2439 | asection **func_sec; |
411e1bfb | 2440 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2441 | long *adjust; |
2442 | } opd; | |
411e1bfb AM |
2443 | |
2444 | /* An array for toc sections, indexed by offset/8. | |
2445 | Specifies the relocation symbol index used at a given toc offset. */ | |
2446 | unsigned *t_symndx; | |
f0abc2a1 AM |
2447 | }; |
2448 | ||
2449 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2450 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2451 | |
2452 | static bfd_boolean | |
2453 | ppc64_elf_new_section_hook (abfd, sec) | |
2454 | bfd *abfd; | |
2455 | asection *sec; | |
2456 | { | |
2457 | struct _ppc64_elf_section_data *sdata; | |
2458 | bfd_size_type amt = sizeof (*sdata); | |
2459 | ||
2460 | sdata = (struct _ppc64_elf_section_data *) bfd_zalloc (abfd, amt); | |
2461 | if (sdata == NULL) | |
2462 | return FALSE; | |
2463 | sec->used_by_bfd = (PTR) sdata; | |
2464 | ||
2465 | return _bfd_elf_new_section_hook (abfd, sec); | |
2466 | } | |
5bd4f169 | 2467 | \f |
65f38f15 AM |
2468 | /* The following functions are specific to the ELF linker, while |
2469 | functions above are used generally. Those named ppc64_elf_* are | |
2470 | called by the main ELF linker code. They appear in this file more | |
2471 | or less in the order in which they are called. eg. | |
2472 | ppc64_elf_check_relocs is called early in the link process, | |
2473 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2474 | called. |
2475 | ||
2476 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2477 | functions have both a function code symbol and a function descriptor | |
2478 | symbol. A call to foo in a relocatable object file looks like: | |
2479 | ||
2480 | . .text | |
2481 | . x: | |
2482 | . bl .foo | |
2483 | . nop | |
2484 | ||
2485 | The function definition in another object file might be: | |
2486 | ||
2487 | . .section .opd | |
2488 | . foo: .quad .foo | |
2489 | . .quad .TOC.@tocbase | |
2490 | . .quad 0 | |
2491 | . | |
2492 | . .text | |
2493 | . .foo: blr | |
2494 | ||
2495 | When the linker resolves the call during a static link, the branch | |
2496 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2497 | If the function definition is in a shared library, things are a little | |
2498 | different: The call goes via a plt call stub, the opd information gets | |
2499 | copied to the plt, and the linker patches the nop. | |
2500 | ||
2501 | . x: | |
2502 | . bl .foo_stub | |
2503 | . ld 2,40(1) | |
2504 | . | |
2505 | . | |
2506 | . .foo_stub: | |
2507 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2508 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2509 | . std 2,40(1) # this is the general idea |
2510 | . ld 11,0(12) | |
2511 | . ld 2,8(12) | |
2512 | . mtctr 11 | |
2513 | . ld 11,16(12) | |
2514 | . bctr | |
2515 | . | |
2516 | . .section .plt | |
2517 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2518 | ||
2519 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2520 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2521 | copying. | |
2522 | ||
2523 | What are the difficulties here? Well, firstly, the relocations | |
2524 | examined by the linker in check_relocs are against the function code | |
2525 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2526 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2527 | to carefully copy dynamic link information from one symbol to the other. | |
2528 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2529 | symbol as is normal for most other backends. We need foo dynamic | |
2530 | instead, at least for an application final link. However, when | |
2531 | creating a shared library containing foo, we need to have both symbols | |
2532 | dynamic so that references to .foo are satisfied during the early | |
2533 | stages of linking. Otherwise the linker might decide to pull in a | |
41bd81ab | 2534 | definition from some other object, eg. a static library. */ |
65f38f15 AM |
2535 | |
2536 | /* The linker needs to keep track of the number of relocs that it | |
2537 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2538 | This is so that it can later discard them if they are found to be | |
2539 | unnecessary. We store the information in a field extending the | |
2540 | regular ELF linker hash table. */ | |
2541 | ||
2542 | struct ppc_dyn_relocs | |
2543 | { | |
2544 | struct ppc_dyn_relocs *next; | |
2545 | ||
2546 | /* The input section of the reloc. */ | |
2547 | asection *sec; | |
2548 | ||
2549 | /* Total number of relocs copied for the input section. */ | |
2550 | bfd_size_type count; | |
2551 | ||
2552 | /* Number of pc-relative relocs copied for the input section. */ | |
2553 | bfd_size_type pc_count; | |
2554 | }; | |
2555 | ||
411e1bfb AM |
2556 | /* Track GOT entries needed for a given symbol. We might need more |
2557 | than one got entry per symbol. */ | |
2558 | struct got_entry | |
2559 | { | |
2560 | struct got_entry *next; | |
2561 | ||
e7b938ca | 2562 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
2563 | bfd_vma addend; |
2564 | ||
e7b938ca | 2565 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
2566 | union |
2567 | { | |
2568 | bfd_signed_vma refcount; | |
2569 | bfd_vma offset; | |
2570 | } got; | |
2571 | ||
e7b938ca AM |
2572 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, |
2573 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
411e1bfb AM |
2574 | char tls_type; |
2575 | }; | |
2576 | ||
2577 | /* The same for PLT. */ | |
2578 | struct plt_entry | |
2579 | { | |
2580 | struct plt_entry *next; | |
2581 | ||
2582 | bfd_vma addend; | |
2583 | ||
2584 | union | |
2585 | { | |
2586 | bfd_signed_vma refcount; | |
2587 | bfd_vma offset; | |
2588 | } plt; | |
2589 | }; | |
2590 | ||
65f38f15 | 2591 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
2592 | selects those that must be copied when linking a shared library, |
2593 | even when the symbol is local. */ | |
65f38f15 | 2594 | |
411e1bfb | 2595 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
2596 | ((RTYPE) != R_PPC64_REL32 \ |
2597 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 2598 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 2599 | |
f4656909 AM |
2600 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2601 | copying dynamic variables from a shared lib into an app's dynbss | |
2602 | section, and instead use a dynamic relocation to point into the | |
2603 | shared lib. */ | |
a23b6845 | 2604 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 2605 | |
721956f4 AM |
2606 | /* Section name for stubs is the associated section name plus this |
2607 | string. */ | |
2608 | #define STUB_SUFFIX ".stub" | |
2609 | ||
2610 | /* Linker stubs. | |
2611 | ppc_stub_long_branch: | |
2612 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
2613 | destination, but a 24 bit branch in a stub section will reach. | |
2614 | . b dest | |
2615 | ||
2616 | ppc_stub_plt_branch: | |
2617 | Similar to the above, but a 24 bit branch in the stub section won't | |
2618 | reach its destination. | |
87e226ce AM |
2619 | . addis %r12,%r2,xxx@toc@ha |
2620 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
2621 | . mtctr %r11 |
2622 | . bctr | |
2623 | ||
2624 | ppc_stub_plt_call: | |
2625 | Used to call a function in a shared library. | |
87e226ce | 2626 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 2627 | . std %r2,40(%r1) |
87e226ce AM |
2628 | . ld %r11,xxx+0@toc@l(%r12) |
2629 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 2630 | . mtctr %r11 |
87e226ce | 2631 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 2632 | . bctr |
ad8e1ba5 AM |
2633 | |
2634 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
2635 | code to adjust the value and save r2 to support multiple toc sections. | |
2636 | A ppc_stub_long_branch with an r2 offset looks like: | |
2637 | . std %r2,40(%r1) | |
2638 | . addis %r2,%r2,off@ha | |
2639 | . addi %r2,%r2,off@l | |
2640 | . b dest | |
2641 | ||
2642 | A ppc_stub_plt_branch with an r2 offset looks like: | |
2643 | . std %r2,40(%r1) | |
2644 | . addis %r12,%r2,xxx@toc@ha | |
2645 | . ld %r11,xxx@toc@l(%r12) | |
2646 | . addis %r2,%r2,off@ha | |
2647 | . addi %r2,%r2,off@l | |
2648 | . mtctr %r11 | |
2649 | . bctr | |
721956f4 AM |
2650 | */ |
2651 | ||
2652 | enum ppc_stub_type { | |
2653 | ppc_stub_none, | |
2654 | ppc_stub_long_branch, | |
ad8e1ba5 | 2655 | ppc_stub_long_branch_r2off, |
721956f4 | 2656 | ppc_stub_plt_branch, |
ad8e1ba5 | 2657 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
2658 | ppc_stub_plt_call |
2659 | }; | |
2660 | ||
2661 | struct ppc_stub_hash_entry { | |
2662 | ||
2663 | /* Base hash table entry structure. */ | |
2664 | struct bfd_hash_entry root; | |
2665 | ||
ad8e1ba5 AM |
2666 | enum ppc_stub_type stub_type; |
2667 | ||
721956f4 AM |
2668 | /* The stub section. */ |
2669 | asection *stub_sec; | |
2670 | ||
2671 | /* Offset within stub_sec of the beginning of this stub. */ | |
2672 | bfd_vma stub_offset; | |
2673 | ||
2674 | /* Given the symbol's value and its section we can determine its final | |
2675 | value when building the stubs (so the stub knows where to jump. */ | |
2676 | bfd_vma target_value; | |
2677 | asection *target_section; | |
2678 | ||
721956f4 AM |
2679 | /* The symbol table entry, if any, that this was derived from. */ |
2680 | struct ppc_link_hash_entry *h; | |
2681 | ||
411e1bfb AM |
2682 | /* And the reloc addend that this was derived from. */ |
2683 | bfd_vma addend; | |
2684 | ||
721956f4 AM |
2685 | /* Where this stub is being called from, or, in the case of combined |
2686 | stub sections, the first input section in the group. */ | |
2687 | asection *id_sec; | |
2688 | }; | |
2689 | ||
2690 | struct ppc_branch_hash_entry { | |
2691 | ||
2692 | /* Base hash table entry structure. */ | |
2693 | struct bfd_hash_entry root; | |
2694 | ||
2695 | /* Offset within .branch_lt. */ | |
2696 | unsigned int offset; | |
2697 | ||
2698 | /* Generation marker. */ | |
2699 | unsigned int iter; | |
2700 | }; | |
65f38f15 AM |
2701 | |
2702 | struct ppc_link_hash_entry | |
2703 | { | |
2704 | struct elf_link_hash_entry elf; | |
2705 | ||
721956f4 AM |
2706 | /* A pointer to the most recently used stub hash entry against this |
2707 | symbol. */ | |
2708 | struct ppc_stub_hash_entry *stub_cache; | |
2709 | ||
65f38f15 AM |
2710 | /* Track dynamic relocs copied for this symbol. */ |
2711 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 2712 | |
721956f4 AM |
2713 | /* Link between function code and descriptor symbols. */ |
2714 | struct elf_link_hash_entry *oh; | |
2715 | ||
e86ce104 AM |
2716 | /* Flag function code and descriptor symbols. */ |
2717 | unsigned int is_func:1; | |
2718 | unsigned int is_func_descriptor:1; | |
1e2f5b6e | 2719 | unsigned int is_entry:1; |
411e1bfb AM |
2720 | |
2721 | /* Contexts in which symbol is used in the GOT (or TOC). | |
e7b938ca AM |
2722 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
2723 | corresponding relocs are encountered during check_relocs. | |
2724 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2725 | indicate the corresponding GOT entry type is not needed. | |
2726 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
2727 | a TPREL one. We use a separate flag rather than setting TPREL | |
2728 | just for convenience in distinguishing the two cases. */ | |
2729 | #define TLS_GD 1 /* GD reloc. */ | |
2730 | #define TLS_LD 2 /* LD reloc. */ | |
2731 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2732 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2733 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2734 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
2735 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
2736 | char tls_mask; | |
65f38f15 AM |
2737 | }; |
2738 | ||
2739 | /* ppc64 ELF linker hash table. */ | |
2740 | ||
2741 | struct ppc_link_hash_table | |
2742 | { | |
2743 | struct elf_link_hash_table elf; | |
2744 | ||
721956f4 AM |
2745 | /* The stub hash table. */ |
2746 | struct bfd_hash_table stub_hash_table; | |
2747 | ||
2748 | /* Another hash table for plt_branch stubs. */ | |
2749 | struct bfd_hash_table branch_hash_table; | |
2750 | ||
2751 | /* Linker stub bfd. */ | |
2752 | bfd *stub_bfd; | |
2753 | ||
2754 | /* Linker call-backs. */ | |
2755 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2756 | void (*layout_sections_again) PARAMS ((void)); | |
2757 | ||
2758 | /* Array to keep track of which stub sections have been created, and | |
2759 | information on stub grouping. */ | |
2760 | struct map_stub { | |
2761 | /* This is the section to which stubs in the group will be attached. */ | |
2762 | asection *link_sec; | |
2763 | /* The stub section. */ | |
2764 | asection *stub_sec; | |
ad8e1ba5 AM |
2765 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
2766 | bfd_vma toc_off; | |
721956f4 AM |
2767 | } *stub_group; |
2768 | ||
ad8e1ba5 AM |
2769 | /* Support for multiple toc sections. */ |
2770 | unsigned int no_multi_toc; | |
2771 | unsigned int multi_toc_needed; | |
2772 | ||
2773 | /* Temp used when calculating TOC pointers. */ | |
2774 | bfd_vma toc_curr; | |
2775 | ||
734b6cf9 AM |
2776 | /* Highest output section index. */ |
2777 | int top_index; | |
2778 | ||
2779 | /* List of input sections for each output section. */ | |
2780 | asection **input_list; | |
721956f4 | 2781 | |
65f38f15 AM |
2782 | /* Short-cuts to get to dynamic linker sections. */ |
2783 | asection *sgot; | |
2784 | asection *srelgot; | |
2785 | asection *splt; | |
2786 | asection *srelplt; | |
2787 | asection *sdynbss; | |
2788 | asection *srelbss; | |
2789 | asection *sglink; | |
82bd7b59 | 2790 | asection *sfpr; |
721956f4 AM |
2791 | asection *sbrlt; |
2792 | asection *srelbrlt; | |
ec338859 | 2793 | |
411e1bfb AM |
2794 | /* Short-cut to first output tls section. */ |
2795 | asection *tls_sec; | |
2796 | ||
2797 | /* Shortcut to .__tls_get_addr. */ | |
2798 | struct elf_link_hash_entry *tls_get_addr; | |
2799 | ||
2800 | /* TLS local dynamic got entry handling. */ | |
2801 | union { | |
2802 | bfd_signed_vma refcount; | |
2803 | bfd_vma offset; | |
2804 | } tlsld_got; | |
2805 | ||
9b5ecbd0 AM |
2806 | /* Statistics. */ |
2807 | unsigned long stub_count[ppc_stub_plt_call]; | |
2808 | ||
ad8e1ba5 AM |
2809 | /* Set if we should emit symbols for stubs. */ |
2810 | unsigned int emit_stub_syms; | |
2811 | ||
5d1634d7 | 2812 | /* Set on error. */ |
721956f4 AM |
2813 | unsigned int stub_error; |
2814 | ||
2815 | /* Flag set when small branches are detected. Used to | |
2816 | select suitable defaults for the stub group size. */ | |
2817 | unsigned int has_14bit_branch; | |
2818 | ||
805fc799 AM |
2819 | /* Set if we detect a reference undefined weak symbol. */ |
2820 | unsigned int have_undefweak; | |
2821 | ||
721956f4 AM |
2822 | /* Incremented every time we size stubs. */ |
2823 | unsigned int stub_iteration; | |
5d1634d7 | 2824 | |
ec338859 AM |
2825 | /* Small local sym to section mapping cache. */ |
2826 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
2827 | }; |
2828 | ||
721956f4 AM |
2829 | static struct bfd_hash_entry *stub_hash_newfunc |
2830 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2831 | static struct bfd_hash_entry *branch_hash_newfunc | |
2832 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2833 | static struct bfd_hash_entry *link_hash_newfunc | |
2834 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2835 | static struct bfd_link_hash_table *ppc64_elf_link_hash_table_create | |
2836 | PARAMS ((bfd *)); | |
2837 | static void ppc64_elf_link_hash_table_free | |
2838 | PARAMS ((struct bfd_link_hash_table *)); | |
2839 | static char *ppc_stub_name | |
2840 | PARAMS ((const asection *, const asection *, | |
2841 | const struct ppc_link_hash_entry *, const Elf_Internal_Rela *)); | |
2842 | static struct ppc_stub_hash_entry *ppc_get_stub_entry | |
2843 | PARAMS ((const asection *, const asection *, struct elf_link_hash_entry *, | |
2844 | const Elf_Internal_Rela *, struct ppc_link_hash_table *)); | |
2845 | static struct ppc_stub_hash_entry *ppc_add_stub | |
2846 | PARAMS ((const char *, asection *, struct ppc_link_hash_table *)); | |
b34976b6 | 2847 | static bfd_boolean create_linkage_sections |
721956f4 | 2848 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2849 | static bfd_boolean create_got_section |
721956f4 | 2850 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2851 | static bfd_boolean ppc64_elf_create_dynamic_sections |
721956f4 AM |
2852 | PARAMS ((bfd *, struct bfd_link_info *)); |
2853 | static void ppc64_elf_copy_indirect_symbol | |
b48fa14c AM |
2854 | PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, |
2855 | struct elf_link_hash_entry *)); | |
411e1bfb AM |
2856 | static bfd_boolean update_local_sym_info |
2857 | PARAMS ((bfd *, Elf_Internal_Shdr *, unsigned long, bfd_vma, int)); | |
2858 | static bfd_boolean update_plt_info | |
2859 | PARAMS ((bfd *, struct ppc_link_hash_entry *, bfd_vma)); | |
b34976b6 | 2860 | static bfd_boolean ppc64_elf_check_relocs |
721956f4 AM |
2861 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
2862 | const Elf_Internal_Rela *)); | |
2863 | static asection * ppc64_elf_gc_mark_hook | |
1e2f5b6e AM |
2864 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
2865 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
b34976b6 | 2866 | static bfd_boolean ppc64_elf_gc_sweep_hook |
1e2f5b6e AM |
2867 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
2868 | const Elf_Internal_Rela *)); | |
b34976b6 | 2869 | static bfd_boolean func_desc_adjust |
721956f4 | 2870 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 2871 | static bfd_boolean ppc64_elf_func_desc_adjust |
721956f4 | 2872 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2873 | static bfd_boolean ppc64_elf_adjust_dynamic_symbol |
721956f4 AM |
2874 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
2875 | static void ppc64_elf_hide_symbol | |
b34976b6 | 2876 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean)); |
411e1bfb AM |
2877 | static bfd_boolean get_sym_h |
2878 | PARAMS ((struct elf_link_hash_entry **, Elf_Internal_Sym **, asection **, | |
2879 | char **, Elf_Internal_Sym **, unsigned long, bfd *)); | |
e7b938ca | 2880 | static int get_tls_mask |
411e1bfb | 2881 | PARAMS ((char **, Elf_Internal_Sym **, const Elf_Internal_Rela *, bfd *)); |
b34976b6 | 2882 | static bfd_boolean allocate_dynrelocs |
721956f4 | 2883 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 2884 | static bfd_boolean readonly_dynrelocs |
721956f4 AM |
2885 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
2886 | static enum elf_reloc_type_class ppc64_elf_reloc_type_class | |
2887 | PARAMS ((const Elf_Internal_Rela *)); | |
b34976b6 | 2888 | static bfd_boolean ppc64_elf_size_dynamic_sections |
721956f4 | 2889 | PARAMS ((bfd *, struct bfd_link_info *)); |
411e1bfb | 2890 | static enum ppc_stub_type ppc_type_of_stub |
721956f4 AM |
2891 | PARAMS ((asection *, const Elf_Internal_Rela *, |
2892 | struct ppc_link_hash_entry **, bfd_vma)); | |
2893 | static bfd_byte *build_plt_stub | |
ad8e1ba5 | 2894 | PARAMS ((bfd *, bfd_byte *, int)); |
b34976b6 | 2895 | static bfd_boolean ppc_build_one_stub |
721956f4 | 2896 | PARAMS ((struct bfd_hash_entry *, PTR)); |
b34976b6 | 2897 | static bfd_boolean ppc_size_one_stub |
721956f4 | 2898 | PARAMS ((struct bfd_hash_entry *, PTR)); |
9b5ecbd0 AM |
2899 | static int toc_adjusting_stub_needed |
2900 | PARAMS ((struct bfd_link_info *, asection *)); | |
721956f4 | 2901 | static void group_sections |
b34976b6 AM |
2902 | PARAMS ((struct ppc_link_hash_table *, bfd_size_type, bfd_boolean)); |
2903 | static bfd_boolean ppc64_elf_relocate_section | |
721956f4 AM |
2904 | PARAMS ((bfd *, struct bfd_link_info *info, bfd *, asection *, bfd_byte *, |
2905 | Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, | |
2906 | asection **)); | |
b34976b6 | 2907 | static bfd_boolean ppc64_elf_finish_dynamic_symbol |
721956f4 AM |
2908 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
2909 | Elf_Internal_Sym *)); | |
b34976b6 | 2910 | static bfd_boolean ppc64_elf_finish_dynamic_sections |
721956f4 AM |
2911 | PARAMS ((bfd *, struct bfd_link_info *)); |
2912 | ||
65f38f15 AM |
2913 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
2914 | ||
2915 | #define ppc_hash_table(p) \ | |
2916 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
2917 | ||
721956f4 AM |
2918 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
2919 | ((struct ppc_stub_hash_entry *) \ | |
2920 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2921 | ||
2922 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
2923 | ((struct ppc_branch_hash_entry *) \ | |
2924 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2925 | ||
2926 | /* Create an entry in the stub hash table. */ | |
2927 | ||
2928 | static struct bfd_hash_entry * | |
2929 | stub_hash_newfunc (entry, table, string) | |
2930 | struct bfd_hash_entry *entry; | |
2931 | struct bfd_hash_table *table; | |
2932 | const char *string; | |
2933 | { | |
2934 | /* Allocate the structure if it has not already been allocated by a | |
2935 | subclass. */ | |
2936 | if (entry == NULL) | |
2937 | { | |
2938 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
2939 | if (entry == NULL) | |
2940 | return entry; | |
2941 | } | |
2942 | ||
2943 | /* Call the allocation method of the superclass. */ | |
2944 | entry = bfd_hash_newfunc (entry, table, string); | |
2945 | if (entry != NULL) | |
2946 | { | |
2947 | struct ppc_stub_hash_entry *eh; | |
2948 | ||
2949 | /* Initialize the local fields. */ | |
2950 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 2951 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
2952 | eh->stub_sec = NULL; |
2953 | eh->stub_offset = 0; | |
2954 | eh->target_value = 0; | |
2955 | eh->target_section = NULL; | |
721956f4 AM |
2956 | eh->h = NULL; |
2957 | eh->id_sec = NULL; | |
2958 | } | |
2959 | ||
2960 | return entry; | |
2961 | } | |
2962 | ||
2963 | /* Create an entry in the branch hash table. */ | |
2964 | ||
2965 | static struct bfd_hash_entry * | |
2966 | branch_hash_newfunc (entry, table, string) | |
2967 | struct bfd_hash_entry *entry; | |
2968 | struct bfd_hash_table *table; | |
2969 | const char *string; | |
2970 | { | |
2971 | /* Allocate the structure if it has not already been allocated by a | |
2972 | subclass. */ | |
2973 | if (entry == NULL) | |
2974 | { | |
2975 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
2976 | if (entry == NULL) | |
2977 | return entry; | |
2978 | } | |
2979 | ||
2980 | /* Call the allocation method of the superclass. */ | |
2981 | entry = bfd_hash_newfunc (entry, table, string); | |
2982 | if (entry != NULL) | |
2983 | { | |
2984 | struct ppc_branch_hash_entry *eh; | |
2985 | ||
2986 | /* Initialize the local fields. */ | |
2987 | eh = (struct ppc_branch_hash_entry *) entry; | |
2988 | eh->offset = 0; | |
2989 | eh->iter = 0; | |
2990 | } | |
2991 | ||
2992 | return entry; | |
2993 | } | |
2994 | ||
65f38f15 AM |
2995 | /* Create an entry in a ppc64 ELF linker hash table. */ |
2996 | ||
2997 | static struct bfd_hash_entry * | |
2998 | link_hash_newfunc (entry, table, string) | |
2999 | struct bfd_hash_entry *entry; | |
3000 | struct bfd_hash_table *table; | |
3001 | const char *string; | |
3002 | { | |
3003 | /* Allocate the structure if it has not already been allocated by a | |
3004 | subclass. */ | |
3005 | if (entry == NULL) | |
3006 | { | |
3007 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
3008 | if (entry == NULL) | |
3009 | return entry; | |
3010 | } | |
3011 | ||
3012 | /* Call the allocation method of the superclass. */ | |
3013 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3014 | if (entry != NULL) | |
3015 | { | |
3016 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
3017 | ||
721956f4 | 3018 | eh->stub_cache = NULL; |
65f38f15 | 3019 | eh->dyn_relocs = NULL; |
721956f4 | 3020 | eh->oh = NULL; |
e86ce104 AM |
3021 | eh->is_func = 0; |
3022 | eh->is_func_descriptor = 0; | |
1e2f5b6e | 3023 | eh->is_entry = 0; |
e7b938ca | 3024 | eh->tls_mask = 0; |
65f38f15 AM |
3025 | } |
3026 | ||
3027 | return entry; | |
3028 | } | |
3029 | ||
3030 | /* Create a ppc64 ELF linker hash table. */ | |
3031 | ||
3032 | static struct bfd_link_hash_table * | |
3033 | ppc64_elf_link_hash_table_create (abfd) | |
3034 | bfd *abfd; | |
3035 | { | |
3036 | struct ppc_link_hash_table *htab; | |
3037 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
3038 | ||
9b5ecbd0 | 3039 | htab = (struct ppc_link_hash_table *) bfd_zmalloc (amt); |
65f38f15 AM |
3040 | if (htab == NULL) |
3041 | return NULL; | |
3042 | ||
3043 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
3044 | { | |
e2d34d7d | 3045 | free (htab); |
65f38f15 AM |
3046 | return NULL; |
3047 | } | |
3048 | ||
721956f4 AM |
3049 | /* Init the stub hash table too. */ |
3050 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
3051 | return NULL; | |
3052 | ||
3053 | /* And the branch hash table. */ | |
3054 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
3055 | return NULL; | |
3056 | ||
65f38f15 AM |
3057 | return &htab->elf.root; |
3058 | } | |
3059 | ||
721956f4 AM |
3060 | /* Free the derived linker hash table. */ |
3061 | ||
3062 | static void | |
3063 | ppc64_elf_link_hash_table_free (hash) | |
3064 | struct bfd_link_hash_table *hash; | |
3065 | { | |
3066 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
3067 | ||
3068 | bfd_hash_table_free (&ret->stub_hash_table); | |
3069 | bfd_hash_table_free (&ret->branch_hash_table); | |
3070 | _bfd_generic_link_hash_table_free (hash); | |
3071 | } | |
3072 | ||
3073 | /* Build a name for an entry in the stub hash table. */ | |
3074 | ||
3075 | static char * | |
3076 | ppc_stub_name (input_section, sym_sec, h, rel) | |
3077 | const asection *input_section; | |
3078 | const asection *sym_sec; | |
3079 | const struct ppc_link_hash_entry *h; | |
3080 | const Elf_Internal_Rela *rel; | |
3081 | { | |
3082 | char *stub_name; | |
3083 | bfd_size_type len; | |
3084 | ||
3085 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3086 | offsets from a sym as a branch target? In fact, we could | |
3087 | probably assume the addend is always zero. */ | |
3088 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3089 | ||
3090 | if (h) | |
3091 | { | |
3092 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3093 | stub_name = bfd_malloc (len); | |
3094 | if (stub_name != NULL) | |
3095 | { | |
3096 | sprintf (stub_name, "%08x_%s+%x", | |
3097 | input_section->id & 0xffffffff, | |
3098 | h->elf.root.root.string, | |
3099 | (int) rel->r_addend & 0xffffffff); | |
3100 | } | |
3101 | } | |
3102 | else | |
3103 | { | |
ad8e1ba5 | 3104 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 AM |
3105 | stub_name = bfd_malloc (len); |
3106 | if (stub_name != NULL) | |
3107 | { | |
3108 | sprintf (stub_name, "%08x_%x:%x+%x", | |
3109 | input_section->id & 0xffffffff, | |
3110 | sym_sec->id & 0xffffffff, | |
3111 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3112 | (int) rel->r_addend & 0xffffffff); | |
3113 | } | |
3114 | } | |
3115 | return stub_name; | |
3116 | } | |
3117 | ||
3118 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3119 | creating the stub name takes a bit of time. */ | |
3120 | ||
3121 | static struct ppc_stub_hash_entry * | |
3122 | ppc_get_stub_entry (input_section, sym_sec, hash, rel, htab) | |
3123 | const asection *input_section; | |
3124 | const asection *sym_sec; | |
3125 | struct elf_link_hash_entry *hash; | |
3126 | const Elf_Internal_Rela *rel; | |
3127 | struct ppc_link_hash_table *htab; | |
3128 | { | |
3129 | struct ppc_stub_hash_entry *stub_entry; | |
3130 | struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash; | |
3131 | const asection *id_sec; | |
3132 | ||
3133 | /* If this input section is part of a group of sections sharing one | |
3134 | stub section, then use the id of the first section in the group. | |
3135 | Stub names need to include a section id, as there may well be | |
3136 | more than one stub used to reach say, printf, and we need to | |
3137 | distinguish between them. */ | |
3138 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3139 | ||
3140 | if (h != NULL && h->stub_cache != NULL | |
3141 | && h->stub_cache->h == h | |
3142 | && h->stub_cache->id_sec == id_sec) | |
3143 | { | |
3144 | stub_entry = h->stub_cache; | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | char *stub_name; | |
3149 | ||
3150 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3151 | if (stub_name == NULL) | |
3152 | return NULL; | |
3153 | ||
3154 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3155 | stub_name, FALSE, FALSE); |
721956f4 AM |
3156 | if (h != NULL) |
3157 | h->stub_cache = stub_entry; | |
3158 | ||
3159 | free (stub_name); | |
3160 | } | |
3161 | ||
3162 | return stub_entry; | |
3163 | } | |
3164 | ||
3165 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3166 | stub entry are initialised. */ | |
3167 | ||
3168 | static struct ppc_stub_hash_entry * | |
3169 | ppc_add_stub (stub_name, section, htab) | |
3170 | const char *stub_name; | |
3171 | asection *section; | |
3172 | struct ppc_link_hash_table *htab; | |
3173 | { | |
3174 | asection *link_sec; | |
3175 | asection *stub_sec; | |
3176 | struct ppc_stub_hash_entry *stub_entry; | |
3177 | ||
3178 | link_sec = htab->stub_group[section->id].link_sec; | |
3179 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3180 | if (stub_sec == NULL) | |
3181 | { | |
3182 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3183 | if (stub_sec == NULL) | |
3184 | { | |
d4c88bbb | 3185 | size_t namelen; |
721956f4 AM |
3186 | bfd_size_type len; |
3187 | char *s_name; | |
3188 | ||
d4c88bbb AM |
3189 | namelen = strlen (link_sec->name); |
3190 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3191 | s_name = bfd_alloc (htab->stub_bfd, len); |
3192 | if (s_name == NULL) | |
3193 | return NULL; | |
3194 | ||
d4c88bbb AM |
3195 | memcpy (s_name, link_sec->name, namelen); |
3196 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3197 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3198 | if (stub_sec == NULL) | |
3199 | return NULL; | |
3200 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3201 | } | |
3202 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3203 | } | |
3204 | ||
3205 | /* Enter this entry into the linker stub hash table. */ | |
3206 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3207 | TRUE, FALSE); |
721956f4 AM |
3208 | if (stub_entry == NULL) |
3209 | { | |
3210 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
3211 | bfd_archive_filename (section->owner), | |
3212 | stub_name); | |
3213 | return NULL; | |
3214 | } | |
3215 | ||
3216 | stub_entry->stub_sec = stub_sec; | |
3217 | stub_entry->stub_offset = 0; | |
3218 | stub_entry->id_sec = link_sec; | |
3219 | return stub_entry; | |
3220 | } | |
3221 | ||
82bd7b59 AM |
3222 | /* Create sections for linker generated code. */ |
3223 | ||
b34976b6 | 3224 | static bfd_boolean |
82bd7b59 AM |
3225 | create_linkage_sections (dynobj, info) |
3226 | bfd *dynobj; | |
3227 | struct bfd_link_info *info; | |
3228 | { | |
3229 | struct ppc_link_hash_table *htab; | |
3230 | flagword flags; | |
3231 | ||
3232 | htab = ppc_hash_table (info); | |
3233 | ||
3234 | /* Create .sfpr for code to save and restore fp regs. */ | |
3235 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3236 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3237 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3238 | if (htab->sfpr == NULL |
3239 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3240 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3241 | return FALSE; |
82bd7b59 | 3242 | |
721956f4 AM |
3243 | /* Create .glink for lazy dynamic linking support. */ |
3244 | htab->sglink = bfd_make_section_anyway (dynobj, ".glink"); | |
82bd7b59 AM |
3245 | if (htab->sglink == NULL |
3246 | || ! bfd_set_section_flags (dynobj, htab->sglink, flags) | |
3247 | || ! bfd_set_section_alignment (dynobj, htab->sglink, 2)) | |
b34976b6 | 3248 | return FALSE; |
82bd7b59 | 3249 | |
721956f4 AM |
3250 | /* Create .branch_lt for plt_branch stubs. */ |
3251 | flags = (SEC_ALLOC | SEC_LOAD | |
3252 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3253 | htab->sbrlt = bfd_make_section_anyway (dynobj, ".branch_lt"); | |
3254 | if (htab->sbrlt == NULL | |
3255 | || ! bfd_set_section_flags (dynobj, htab->sbrlt, flags) | |
3256 | || ! bfd_set_section_alignment (dynobj, htab->sbrlt, 3)) | |
b34976b6 | 3257 | return FALSE; |
721956f4 AM |
3258 | |
3259 | if (info->shared) | |
3260 | { | |
3261 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3262 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1e2f5b6e | 3263 | htab->srelbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
721956f4 AM |
3264 | if (!htab->srelbrlt |
3265 | || ! bfd_set_section_flags (dynobj, htab->srelbrlt, flags) | |
3266 | || ! bfd_set_section_alignment (dynobj, htab->srelbrlt, 3)) | |
b34976b6 | 3267 | return FALSE; |
721956f4 | 3268 | } |
b34976b6 | 3269 | return TRUE; |
82bd7b59 AM |
3270 | } |
3271 | ||
65f38f15 AM |
3272 | /* Create .got and .rela.got sections in DYNOBJ, and set up |
3273 | shortcuts to them in our hash table. */ | |
3274 | ||
b34976b6 | 3275 | static bfd_boolean |
65f38f15 AM |
3276 | create_got_section (dynobj, info) |
3277 | bfd *dynobj; | |
3278 | struct bfd_link_info *info; | |
3279 | { | |
3280 | struct ppc_link_hash_table *htab; | |
3281 | ||
3282 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 3283 | return FALSE; |
65f38f15 AM |
3284 | |
3285 | htab = ppc_hash_table (info); | |
3286 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3287 | if (!htab->sgot) | |
3288 | abort (); | |
3289 | ||
3290 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
3291 | if (!htab->srelgot | |
3292 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
3293 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
3294 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3295 | | SEC_READONLY)) | |
3296 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3)) | |
b34976b6 AM |
3297 | return FALSE; |
3298 | return TRUE; | |
65f38f15 | 3299 | } |
5bd4f169 | 3300 | |
82bd7b59 | 3301 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3302 | |
b34976b6 | 3303 | static bfd_boolean |
65f38f15 AM |
3304 | ppc64_elf_create_dynamic_sections (dynobj, info) |
3305 | bfd *dynobj; | |
5bd4f169 AM |
3306 | struct bfd_link_info *info; |
3307 | { | |
65f38f15 | 3308 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3309 | |
65f38f15 AM |
3310 | htab = ppc_hash_table (info); |
3311 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
b34976b6 | 3312 | return FALSE; |
5bd4f169 | 3313 | |
65f38f15 | 3314 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3315 | return FALSE; |
65f38f15 AM |
3316 | |
3317 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3318 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3319 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
3320 | if (!info->shared) | |
3321 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
3322 | ||
3323 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
3324 | || (!info->shared && !htab->srelbss)) | |
3325 | abort (); | |
3326 | ||
b34976b6 | 3327 | return TRUE; |
5bd4f169 AM |
3328 | } |
3329 | ||
65f38f15 AM |
3330 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3331 | ||
3332 | static void | |
b48fa14c | 3333 | ppc64_elf_copy_indirect_symbol (bed, dir, ind) |
411e1bfb | 3334 | struct elf_backend_data *bed ATTRIBUTE_UNUSED; |
65f38f15 AM |
3335 | struct elf_link_hash_entry *dir, *ind; |
3336 | { | |
3337 | struct ppc_link_hash_entry *edir, *eind; | |
81848ca0 | 3338 | flagword mask; |
65f38f15 AM |
3339 | |
3340 | edir = (struct ppc_link_hash_entry *) dir; | |
3341 | eind = (struct ppc_link_hash_entry *) ind; | |
3342 | ||
411e1bfb | 3343 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3344 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3345 | { |
bbd7ec4a AM |
3346 | if (edir->dyn_relocs != NULL) |
3347 | { | |
3348 | struct ppc_dyn_relocs **pp; | |
3349 | struct ppc_dyn_relocs *p; | |
3350 | ||
411e1bfb | 3351 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3352 | abort (); |
3353 | ||
3354 | /* Add reloc counts against the weak sym to the strong sym | |
3355 | list. Merge any entries against the same section. */ | |
3356 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3357 | { | |
3358 | struct ppc_dyn_relocs *q; | |
3359 | ||
3360 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3361 | if (q->sec == p->sec) | |
3362 | { | |
3363 | q->pc_count += p->pc_count; | |
3364 | q->count += p->count; | |
3365 | *pp = p->next; | |
3366 | break; | |
3367 | } | |
3368 | if (q == NULL) | |
3369 | pp = &p->next; | |
3370 | } | |
3371 | *pp = edir->dyn_relocs; | |
3372 | } | |
3373 | ||
65f38f15 AM |
3374 | edir->dyn_relocs = eind->dyn_relocs; |
3375 | eind->dyn_relocs = NULL; | |
3376 | } | |
65f38f15 | 3377 | |
6349e628 AM |
3378 | edir->is_func |= eind->is_func; |
3379 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
3380 | edir->is_entry |= eind->is_entry; | |
58ac9f71 | 3381 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3382 | |
81848ca0 AM |
3383 | mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR |
3384 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF); | |
3385 | /* If called to transfer flags for a weakdef during processing | |
3386 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
3387 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3388 | if (ELIMINATE_COPY_RELOCS | |
3389 | && eind->elf.root.type != bfd_link_hash_indirect | |
3390 | && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
3391 | mask &= ~ELF_LINK_NON_GOT_REF; | |
3392 | ||
3393 | edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask; | |
6349e628 AM |
3394 | |
3395 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3396 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3397 | return; | |
3398 | ||
81848ca0 AM |
3399 | /* Copy over got entries that we may have already seen to the |
3400 | symbol which just became indirect. */ | |
411e1bfb AM |
3401 | if (eind->elf.got.glist != NULL) |
3402 | { | |
3403 | if (edir->elf.got.glist != NULL) | |
3404 | { | |
3405 | struct got_entry **entp; | |
3406 | struct got_entry *ent; | |
3407 | ||
3408 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3409 | { | |
3410 | struct got_entry *dent; | |
3411 | ||
3412 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3413 | if (dent->addend == ent->addend | |
3414 | && dent->tls_type == ent->tls_type) | |
3415 | { | |
3416 | dent->got.refcount += ent->got.refcount; | |
3417 | *entp = ent->next; | |
3418 | break; | |
3419 | } | |
3420 | if (dent == NULL) | |
3421 | entp = &ent->next; | |
3422 | } | |
3423 | *entp = edir->elf.got.glist; | |
3424 | } | |
3425 | ||
3426 | edir->elf.got.glist = eind->elf.got.glist; | |
3427 | eind->elf.got.glist = NULL; | |
3428 | } | |
3429 | ||
3430 | /* And plt entries. */ | |
3431 | if (eind->elf.plt.plist != NULL) | |
3432 | { | |
3433 | if (edir->elf.plt.plist != NULL) | |
3434 | { | |
3435 | struct plt_entry **entp; | |
3436 | struct plt_entry *ent; | |
3437 | ||
3438 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3439 | { | |
3440 | struct plt_entry *dent; | |
3441 | ||
3442 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3443 | if (dent->addend == ent->addend) | |
3444 | { | |
3445 | dent->plt.refcount += ent->plt.refcount; | |
3446 | *entp = ent->next; | |
3447 | break; | |
3448 | } | |
3449 | if (dent == NULL) | |
3450 | entp = &ent->next; | |
3451 | } | |
3452 | *entp = edir->elf.plt.plist; | |
3453 | } | |
3454 | ||
3455 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3456 | eind->elf.plt.plist = NULL; | |
3457 | } | |
3458 | ||
411e1bfb AM |
3459 | if (edir->elf.dynindx == -1) |
3460 | { | |
3461 | edir->elf.dynindx = eind->elf.dynindx; | |
3462 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3463 | eind->elf.dynindx = -1; | |
3464 | eind->elf.dynstr_index = 0; | |
3465 | } | |
3466 | else | |
3467 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3468 | } | |
3469 | ||
3470 | /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and | |
3471 | symbols undefined on the command-line. */ | |
3472 | ||
3473 | bfd_boolean | |
3474 | ppc64_elf_mark_entry_syms (info) | |
3475 | struct bfd_link_info *info; | |
3476 | { | |
3477 | struct ppc_link_hash_table *htab; | |
3478 | struct bfd_sym_chain *sym; | |
3479 | ||
3480 | htab = ppc_hash_table (info); | |
3481 | for (sym = info->gc_sym_list; sym; sym = sym->next) | |
3482 | { | |
3483 | struct elf_link_hash_entry *h; | |
3484 | ||
3485 | h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
3486 | if (h != NULL) | |
3487 | ((struct ppc_link_hash_entry *) h)->is_entry = 1; | |
3488 | } | |
3489 | return TRUE; | |
3490 | } | |
3491 | ||
3492 | static bfd_boolean | |
3493 | update_local_sym_info (abfd, symtab_hdr, r_symndx, r_addend, tls_type) | |
3494 | bfd *abfd; | |
3495 | Elf_Internal_Shdr *symtab_hdr; | |
3496 | unsigned long r_symndx; | |
3497 | bfd_vma r_addend; | |
3498 | int tls_type; | |
3499 | { | |
3500 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 3501 | char *local_got_tls_masks; |
411e1bfb AM |
3502 | |
3503 | if (local_got_ents == NULL) | |
3504 | { | |
3505 | bfd_size_type size = symtab_hdr->sh_info; | |
3506 | ||
e7b938ca | 3507 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
411e1bfb AM |
3508 | local_got_ents = (struct got_entry **) bfd_zalloc (abfd, size); |
3509 | if (local_got_ents == NULL) | |
3510 | return FALSE; | |
3511 | elf_local_got_ents (abfd) = local_got_ents; | |
3512 | } | |
3513 | ||
3514 | if ((tls_type & TLS_EXPLICIT) == 0) | |
3515 | { | |
3516 | struct got_entry *ent; | |
3517 | ||
3518 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
3519 | if (ent->addend == r_addend && ent->tls_type == tls_type) | |
3520 | break; | |
3521 | if (ent == NULL) | |
3522 | { | |
3523 | bfd_size_type amt = sizeof (*ent); | |
3524 | ent = (struct got_entry *) bfd_alloc (abfd, amt); | |
3525 | if (ent == NULL) | |
3526 | return FALSE; | |
3527 | ent->next = local_got_ents[r_symndx]; | |
3528 | ent->addend = r_addend; | |
3529 | ent->tls_type = tls_type; | |
3530 | ent->got.refcount = 0; | |
3531 | local_got_ents[r_symndx] = ent; | |
3532 | } | |
3533 | ent->got.refcount += 1; | |
3534 | } | |
3535 | ||
e7b938ca AM |
3536 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
3537 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 3538 | return TRUE; |
65f38f15 AM |
3539 | } |
3540 | ||
411e1bfb AM |
3541 | static bfd_boolean |
3542 | update_plt_info (abfd, eh, addend) | |
3543 | bfd *abfd; | |
3544 | struct ppc_link_hash_entry *eh; | |
3545 | bfd_vma addend; | |
1e2f5b6e | 3546 | { |
411e1bfb | 3547 | struct plt_entry *ent; |
1e2f5b6e | 3548 | |
411e1bfb AM |
3549 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
3550 | if (ent->addend == addend) | |
3551 | break; | |
3552 | if (ent == NULL) | |
1e2f5b6e | 3553 | { |
411e1bfb AM |
3554 | bfd_size_type amt = sizeof (*ent); |
3555 | ent = (struct plt_entry *) bfd_alloc (abfd, amt); | |
3556 | if (ent == NULL) | |
3557 | return FALSE; | |
3558 | ent->next = eh->elf.plt.plist; | |
3559 | ent->addend = addend; | |
3560 | ent->plt.refcount = 0; | |
3561 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 3562 | } |
411e1bfb AM |
3563 | ent->plt.refcount += 1; |
3564 | eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
3565 | eh->is_func = 1; | |
b34976b6 | 3566 | return TRUE; |
1e2f5b6e AM |
3567 | } |
3568 | ||
5bd4f169 | 3569 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 3570 | calculate needed space in the global offset table, procedure |
5d1634d7 | 3571 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 3572 | |
b34976b6 | 3573 | static bfd_boolean |
5bd4f169 AM |
3574 | ppc64_elf_check_relocs (abfd, info, sec, relocs) |
3575 | bfd *abfd; | |
3576 | struct bfd_link_info *info; | |
3577 | asection *sec; | |
3578 | const Elf_Internal_Rela *relocs; | |
3579 | { | |
65f38f15 | 3580 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
3581 | Elf_Internal_Shdr *symtab_hdr; |
3582 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3583 | const Elf_Internal_Rela *rel; | |
3584 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 3585 | asection *sreloc; |
1e2f5b6e | 3586 | asection **opd_sym_map; |
5bd4f169 AM |
3587 | |
3588 | if (info->relocateable) | |
b34976b6 | 3589 | return TRUE; |
5bd4f169 | 3590 | |
65f38f15 | 3591 | htab = ppc_hash_table (info); |
5bd4f169 | 3592 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
3593 | |
3594 | sym_hashes = elf_sym_hashes (abfd); | |
3595 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
3596 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
3597 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
3598 | |
3599 | sreloc = NULL; | |
1e2f5b6e AM |
3600 | opd_sym_map = NULL; |
3601 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
3602 | { | |
3603 | /* Garbage collection needs some extra help with .opd sections. | |
3604 | We don't want to necessarily keep everything referenced by | |
3605 | relocs in .opd, as that would keep all functions. Instead, | |
3606 | if we reference an .opd symbol (a function descriptor), we | |
3607 | want to keep the function code symbol's section. This is | |
3608 | easy for global symbols, but for local syms we need to keep | |
3609 | information about the associated function section. Later, if | |
3610 | edit_opd deletes entries, we'll use this array to adjust | |
3611 | local syms in .opd. */ | |
3612 | union opd_info { | |
3613 | asection *func_section; | |
3614 | long entry_adjust; | |
3615 | }; | |
3616 | bfd_size_type amt; | |
3617 | ||
3618 | amt = sec->_raw_size * sizeof (union opd_info) / 24; | |
3619 | opd_sym_map = (asection **) bfd_zalloc (abfd, amt); | |
3620 | if (opd_sym_map == NULL) | |
b34976b6 | 3621 | return FALSE; |
f0abc2a1 | 3622 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 3623 | } |
5bd4f169 | 3624 | |
82bd7b59 AM |
3625 | if (htab->elf.dynobj == NULL) |
3626 | htab->elf.dynobj = abfd; | |
3627 | if (htab->sfpr == NULL | |
3628 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 3629 | return FALSE; |
82bd7b59 | 3630 | |
5bd4f169 AM |
3631 | rel_end = relocs + sec->reloc_count; |
3632 | for (rel = relocs; rel < rel_end; rel++) | |
3633 | { | |
3634 | unsigned long r_symndx; | |
3635 | struct elf_link_hash_entry *h; | |
04c9666a | 3636 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 3637 | int tls_type = 0; |
5bd4f169 AM |
3638 | |
3639 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3640 | if (r_symndx < symtab_hdr->sh_info) | |
3641 | h = NULL; | |
3642 | else | |
3643 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3644 | ||
04c9666a | 3645 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3646 | switch (r_type) |
5bd4f169 | 3647 | { |
411e1bfb AM |
3648 | case R_PPC64_GOT_TLSLD16: |
3649 | case R_PPC64_GOT_TLSLD16_LO: | |
3650 | case R_PPC64_GOT_TLSLD16_HI: | |
3651 | case R_PPC64_GOT_TLSLD16_HA: | |
3652 | htab->tlsld_got.refcount += 1; | |
951fd09b | 3653 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
3654 | goto dogottls; |
3655 | ||
3656 | case R_PPC64_GOT_TLSGD16: | |
3657 | case R_PPC64_GOT_TLSGD16_LO: | |
3658 | case R_PPC64_GOT_TLSGD16_HI: | |
3659 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 3660 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
3661 | goto dogottls; |
3662 | ||
3663 | case R_PPC64_GOT_TPREL16_DS: | |
3664 | case R_PPC64_GOT_TPREL16_LO_DS: | |
3665 | case R_PPC64_GOT_TPREL16_HI: | |
3666 | case R_PPC64_GOT_TPREL16_HA: | |
3667 | if (info->shared) | |
3668 | info->flags |= DF_STATIC_TLS; | |
3669 | tls_type = TLS_TLS | TLS_TPREL; | |
3670 | goto dogottls; | |
3671 | ||
3672 | case R_PPC64_GOT_DTPREL16_DS: | |
3673 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
3674 | case R_PPC64_GOT_DTPREL16_HI: | |
3675 | case R_PPC64_GOT_DTPREL16_HA: | |
3676 | tls_type = TLS_TLS | TLS_DTPREL; | |
3677 | dogottls: | |
3678 | sec->has_tls_reloc = 1; | |
3679 | /* Fall thru */ | |
3680 | ||
5bd4f169 | 3681 | case R_PPC64_GOT16: |
5bd4f169 | 3682 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
3683 | case R_PPC64_GOT16_HA: |
3684 | case R_PPC64_GOT16_HI: | |
3685 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 3686 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 3687 | /* This symbol requires a global offset table entry. */ |
ad8e1ba5 | 3688 | sec->has_gp_reloc = 1; |
82bd7b59 AM |
3689 | if (htab->sgot == NULL |
3690 | && !create_got_section (htab->elf.dynobj, info)) | |
b34976b6 | 3691 | return FALSE; |
5bd4f169 AM |
3692 | |
3693 | if (h != NULL) | |
3694 | { | |
411e1bfb AM |
3695 | struct ppc_link_hash_entry *eh; |
3696 | struct got_entry *ent; | |
65f38f15 | 3697 | |
411e1bfb AM |
3698 | eh = (struct ppc_link_hash_entry *) h; |
3699 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
3700 | if (ent->addend == rel->r_addend | |
3701 | && ent->tls_type == tls_type) | |
3702 | break; | |
3703 | if (ent == NULL) | |
5bd4f169 | 3704 | { |
411e1bfb AM |
3705 | bfd_size_type amt = sizeof (*ent); |
3706 | ent = (struct got_entry *) bfd_alloc (abfd, amt); | |
3707 | if (ent == NULL) | |
b34976b6 | 3708 | return FALSE; |
411e1bfb AM |
3709 | ent->next = eh->elf.got.glist; |
3710 | ent->addend = rel->r_addend; | |
3711 | ent->tls_type = tls_type; | |
3712 | ent->got.refcount = 0; | |
3713 | eh->elf.got.glist = ent; | |
5bd4f169 | 3714 | } |
411e1bfb | 3715 | ent->got.refcount += 1; |
e7b938ca | 3716 | eh->tls_mask |= tls_type; |
5bd4f169 | 3717 | } |
411e1bfb AM |
3718 | else |
3719 | /* This is a global offset table entry for a local symbol. */ | |
3720 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3721 | rel->r_addend, tls_type)) | |
3722 | return FALSE; | |
5bd4f169 AM |
3723 | break; |
3724 | ||
5bd4f169 | 3725 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
3726 | case R_PPC64_PLT16_HI: |
3727 | case R_PPC64_PLT16_LO: | |
3728 | case R_PPC64_PLT32: | |
3729 | case R_PPC64_PLT64: | |
5bd4f169 | 3730 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
3731 | actually build the entry in adjust_dynamic_symbol, |
3732 | because this might be a case of linking PIC code without | |
3733 | linking in any dynamic objects, in which case we don't | |
3734 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
3735 | if (h == NULL) |
3736 | { | |
3737 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 3738 | table entry for a local symbol. */ |
5bd4f169 | 3739 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3740 | return FALSE; |
5bd4f169 | 3741 | } |
411e1bfb AM |
3742 | else |
3743 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
3744 | rel->r_addend)) | |
3745 | return FALSE; | |
5bd4f169 AM |
3746 | break; |
3747 | ||
3748 | /* The following relocations don't need to propagate the | |
3749 | relocation if linking a shared object since they are | |
3750 | section relative. */ | |
3751 | case R_PPC64_SECTOFF: | |
3752 | case R_PPC64_SECTOFF_LO: | |
3753 | case R_PPC64_SECTOFF_HI: | |
3754 | case R_PPC64_SECTOFF_HA: | |
3755 | case R_PPC64_SECTOFF_DS: | |
3756 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
3757 | case R_PPC64_DTPREL16: |
3758 | case R_PPC64_DTPREL16_LO: | |
3759 | case R_PPC64_DTPREL16_HI: | |
3760 | case R_PPC64_DTPREL16_HA: | |
3761 | case R_PPC64_DTPREL16_DS: | |
3762 | case R_PPC64_DTPREL16_LO_DS: | |
3763 | case R_PPC64_DTPREL16_HIGHER: | |
3764 | case R_PPC64_DTPREL16_HIGHERA: | |
3765 | case R_PPC64_DTPREL16_HIGHEST: | |
3766 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
3767 | break; |
3768 | ||
ad8e1ba5 AM |
3769 | /* Nor do these. */ |
3770 | case R_PPC64_TOC16: | |
3771 | case R_PPC64_TOC16_LO: | |
3772 | case R_PPC64_TOC16_HI: | |
3773 | case R_PPC64_TOC16_HA: | |
3774 | case R_PPC64_TOC16_DS: | |
3775 | case R_PPC64_TOC16_LO_DS: | |
3776 | sec->has_gp_reloc = 1; | |
3777 | break; | |
3778 | ||
5bd4f169 AM |
3779 | /* This relocation describes the C++ object vtable hierarchy. |
3780 | Reconstruct it for later use during GC. */ | |
3781 | case R_PPC64_GNU_VTINHERIT: | |
3782 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3783 | return FALSE; |
5bd4f169 AM |
3784 | break; |
3785 | ||
3786 | /* This relocation describes which C++ vtable entries are actually | |
3787 | used. Record for later use during GC. */ | |
3788 | case R_PPC64_GNU_VTENTRY: | |
3789 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3790 | return FALSE; |
5bd4f169 AM |
3791 | break; |
3792 | ||
721956f4 AM |
3793 | case R_PPC64_REL14: |
3794 | case R_PPC64_REL14_BRTAKEN: | |
3795 | case R_PPC64_REL14_BRNTAKEN: | |
3796 | htab->has_14bit_branch = 1; | |
3797 | /* Fall through. */ | |
3798 | ||
5d1634d7 | 3799 | case R_PPC64_REL24: |
e86ce104 AM |
3800 | if (h != NULL |
3801 | && h->root.root.string[0] == '.' | |
3802 | && h->root.root.string[1] != 0) | |
5d1634d7 AM |
3803 | { |
3804 | /* We may need a .plt entry if the function this reloc | |
3805 | refers to is in a shared lib. */ | |
411e1bfb AM |
3806 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
3807 | rel->r_addend)) | |
3808 | return FALSE; | |
3809 | if (h == htab->tls_get_addr) | |
3810 | sec->has_tls_reloc = 1; | |
a48ebf4d AM |
3811 | else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15) |
3812 | == 0) | |
3813 | && (h->root.root.string[15] == 0 | |
3814 | || h->root.root.string[15] == '@')) | |
411e1bfb AM |
3815 | { |
3816 | htab->tls_get_addr = h; | |
3817 | sec->has_tls_reloc = 1; | |
3818 | } | |
3819 | } | |
3820 | break; | |
3821 | ||
3822 | case R_PPC64_TPREL64: | |
3823 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
3824 | if (info->shared) | |
3825 | info->flags |= DF_STATIC_TLS; | |
3826 | goto dotlstoc; | |
3827 | ||
3828 | case R_PPC64_DTPMOD64: | |
3829 | if (rel + 1 < rel_end | |
3830 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
3831 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 3832 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 3833 | else |
951fd09b | 3834 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
3835 | goto dotlstoc; |
3836 | ||
3837 | case R_PPC64_DTPREL64: | |
3838 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
3839 | if (rel != relocs | |
3840 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
3841 | && rel[-1].r_offset == rel->r_offset - 8) | |
3842 | /* This is the second reloc of a dtpmod, dtprel pair. | |
3843 | Don't mark with TLS_DTPREL. */ | |
3844 | goto dodyn; | |
3845 | ||
3846 | dotlstoc: | |
3847 | sec->has_tls_reloc = 1; | |
3848 | if (h != NULL) | |
3849 | { | |
3850 | struct ppc_link_hash_entry *eh; | |
3851 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 3852 | eh->tls_mask |= tls_type; |
411e1bfb AM |
3853 | } |
3854 | else | |
3855 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3856 | rel->r_addend, tls_type)) | |
3857 | return FALSE; | |
3858 | ||
3859 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3860 | { | |
e7b938ca | 3861 | /* One extra to simplify get_tls_mask. */ |
951fd09b | 3862 | bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1; |
411e1bfb AM |
3863 | ppc64_elf_section_data (sec)->t_symndx |
3864 | = (unsigned *) bfd_zalloc (abfd, amt); | |
3865 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3866 | return FALSE; | |
3867 | } | |
3868 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
3869 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
3870 | |
3871 | /* Mark the second slot of a GD or LD entry. | |
3872 | -1 to indicate GD and -2 to indicate LD. */ | |
3873 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
3874 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
3875 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
3876 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
3877 | goto dodyn; |
3878 | ||
3879 | case R_PPC64_TPREL16: | |
3880 | case R_PPC64_TPREL16_LO: | |
3881 | case R_PPC64_TPREL16_HI: | |
3882 | case R_PPC64_TPREL16_HA: | |
3883 | case R_PPC64_TPREL16_DS: | |
3884 | case R_PPC64_TPREL16_LO_DS: | |
3885 | case R_PPC64_TPREL16_HIGHER: | |
3886 | case R_PPC64_TPREL16_HIGHERA: | |
3887 | case R_PPC64_TPREL16_HIGHEST: | |
3888 | case R_PPC64_TPREL16_HIGHESTA: | |
3889 | if (info->shared) | |
3890 | { | |
3891 | info->flags |= DF_STATIC_TLS; | |
3892 | goto dodyn; | |
5d1634d7 AM |
3893 | } |
3894 | break; | |
3895 | ||
e86ce104 | 3896 | case R_PPC64_ADDR64: |
1e2f5b6e | 3897 | if (opd_sym_map != NULL |
e86ce104 AM |
3898 | && h != NULL |
3899 | && h->root.root.string[0] == '.' | |
3900 | && h->root.root.string[1] != 0) | |
3901 | { | |
3902 | struct elf_link_hash_entry *fdh; | |
3903 | ||
3904 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 3905 | FALSE, FALSE, FALSE); |
e86ce104 AM |
3906 | if (fdh != NULL) |
3907 | { | |
e86ce104 | 3908 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 3909 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
e86ce104 | 3910 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
721956f4 | 3911 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
3912 | } |
3913 | } | |
1e2f5b6e AM |
3914 | if (opd_sym_map != NULL |
3915 | && h == NULL | |
3916 | && rel + 1 < rel_end | |
04c9666a | 3917 | && ((enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info) |
1e2f5b6e AM |
3918 | == R_PPC64_TOC)) |
3919 | { | |
3920 | asection *s; | |
3921 | ||
3922 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3923 | r_symndx); | |
3924 | if (s == NULL) | |
b34976b6 | 3925 | return FALSE; |
1e2f5b6e AM |
3926 | else if (s != sec) |
3927 | opd_sym_map[rel->r_offset / 24] = s; | |
3928 | } | |
e86ce104 AM |
3929 | /* Fall through. */ |
3930 | ||
04c9666a | 3931 | case R_PPC64_REL30: |
5bd4f169 | 3932 | case R_PPC64_REL32: |
04c9666a | 3933 | case R_PPC64_REL64: |
65f38f15 AM |
3934 | case R_PPC64_ADDR14: |
3935 | case R_PPC64_ADDR14_BRNTAKEN: | |
3936 | case R_PPC64_ADDR14_BRTAKEN: | |
3937 | case R_PPC64_ADDR16: | |
3938 | case R_PPC64_ADDR16_DS: | |
3939 | case R_PPC64_ADDR16_HA: | |
3940 | case R_PPC64_ADDR16_HI: | |
3941 | case R_PPC64_ADDR16_HIGHER: | |
3942 | case R_PPC64_ADDR16_HIGHERA: | |
3943 | case R_PPC64_ADDR16_HIGHEST: | |
3944 | case R_PPC64_ADDR16_HIGHESTA: | |
3945 | case R_PPC64_ADDR16_LO: | |
3946 | case R_PPC64_ADDR16_LO_DS: | |
3947 | case R_PPC64_ADDR24: | |
65f38f15 | 3948 | case R_PPC64_ADDR32: |
65f38f15 AM |
3949 | case R_PPC64_UADDR16: |
3950 | case R_PPC64_UADDR32: | |
3951 | case R_PPC64_UADDR64: | |
5bd4f169 | 3952 | case R_PPC64_TOC: |
81848ca0 AM |
3953 | if (h != NULL && !info->shared) |
3954 | /* We may need a copy reloc. */ | |
3955 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3956 | ||
41bd81ab | 3957 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 3958 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 3959 | break; |
e86ce104 | 3960 | |
f4656909 AM |
3961 | /* Don't propagate relocs that the dynamic linker won't relocate. */ |
3962 | if ((sec->flags & SEC_ALLOC) == 0) | |
3963 | break; | |
3964 | ||
65f38f15 AM |
3965 | /* If we are creating a shared library, and this is a reloc |
3966 | against a global symbol, or a non PC relative reloc | |
3967 | against a local symbol, then we need to copy the reloc | |
3968 | into the shared library. However, if we are linking with | |
3969 | -Bsymbolic, we do not need to copy a reloc against a | |
3970 | global symbol which is defined in an object we are | |
3971 | including in the link (i.e., DEF_REGULAR is set). At | |
3972 | this point we have not seen all the input files, so it is | |
3973 | possible that DEF_REGULAR is not set now but will be set | |
3974 | later (it is never cleared). In case of a weak definition, | |
3975 | DEF_REGULAR may be cleared later by a strong definition in | |
3976 | a shared library. We account for that possibility below by | |
f4656909 | 3977 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
3978 | table entry. A similar situation occurs when creating |
3979 | shared libraries and symbol visibility changes render the | |
3980 | symbol local. | |
3981 | ||
3982 | If on the other hand, we are creating an executable, we | |
3983 | may need to keep relocations for symbols satisfied by a | |
3984 | dynamic library if we manage to avoid copy relocs for the | |
3985 | symbol. */ | |
411e1bfb | 3986 | dodyn: |
65f38f15 | 3987 | if ((info->shared |
411e1bfb | 3988 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
3989 | || (h != NULL |
3990 | && (! info->symbolic | |
3991 | || h->root.type == bfd_link_hash_defweak | |
3992 | || (h->elf_link_hash_flags | |
3993 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
f4656909 AM |
3994 | || (ELIMINATE_COPY_RELOCS |
3995 | && !info->shared | |
65f38f15 AM |
3996 | && h != NULL |
3997 | && (h->root.type == bfd_link_hash_defweak | |
3998 | || (h->elf_link_hash_flags | |
3999 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
5bd4f169 | 4000 | { |
ec338859 AM |
4001 | struct ppc_dyn_relocs *p; |
4002 | struct ppc_dyn_relocs **head; | |
4003 | ||
65f38f15 AM |
4004 | /* We must copy these reloc types into the output file. |
4005 | Create a reloc section in dynobj and make room for | |
4006 | this reloc. */ | |
5bd4f169 AM |
4007 | if (sreloc == NULL) |
4008 | { | |
4009 | const char *name; | |
65f38f15 | 4010 | bfd *dynobj; |
5bd4f169 AM |
4011 | |
4012 | name = (bfd_elf_string_from_elf_section | |
4013 | (abfd, | |
4014 | elf_elfheader (abfd)->e_shstrndx, | |
4015 | elf_section_data (sec)->rel_hdr.sh_name)); | |
4016 | if (name == NULL) | |
b34976b6 | 4017 | return FALSE; |
5bd4f169 | 4018 | |
65f38f15 AM |
4019 | if (strncmp (name, ".rela", 5) != 0 |
4020 | || strcmp (bfd_get_section_name (abfd, sec), | |
4021 | name + 5) != 0) | |
4022 | { | |
4023 | (*_bfd_error_handler) | |
4024 | (_("%s: bad relocation section name `%s\'"), | |
4025 | bfd_archive_filename (abfd), name); | |
5d1634d7 | 4026 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
4027 | } |
4028 | ||
65f38f15 | 4029 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
4030 | sreloc = bfd_get_section_by_name (dynobj, name); |
4031 | if (sreloc == NULL) | |
4032 | { | |
4033 | flagword flags; | |
4034 | ||
4035 | sreloc = bfd_make_section (dynobj, name); | |
4036 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
4037 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4038 | if ((sec->flags & SEC_ALLOC) != 0) | |
4039 | flags |= SEC_ALLOC | SEC_LOAD; | |
4040 | if (sreloc == NULL | |
4041 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 4042 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 4043 | return FALSE; |
5bd4f169 | 4044 | } |
65f38f15 | 4045 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
4046 | } |
4047 | ||
65f38f15 AM |
4048 | /* If this is a global symbol, we count the number of |
4049 | relocations we need for this symbol. */ | |
4050 | if (h != NULL) | |
4051 | { | |
ec338859 | 4052 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
4053 | } |
4054 | else | |
4055 | { | |
ec338859 AM |
4056 | /* Track dynamic relocs needed for local syms too. |
4057 | We really need local syms available to do this | |
4058 | easily. Oh well. */ | |
4059 | ||
4060 | asection *s; | |
4061 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
4062 | sec, r_symndx); | |
4063 | if (s == NULL) | |
b34976b6 | 4064 | return FALSE; |
ec338859 AM |
4065 | |
4066 | head = ((struct ppc_dyn_relocs **) | |
4067 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 4068 | } |
ec338859 AM |
4069 | |
4070 | p = *head; | |
4071 | if (p == NULL || p->sec != sec) | |
4072 | { | |
4073 | p = ((struct ppc_dyn_relocs *) | |
4074 | bfd_alloc (htab->elf.dynobj, | |
4075 | (bfd_size_type) sizeof *p)); | |
4076 | if (p == NULL) | |
b34976b6 | 4077 | return FALSE; |
ec338859 AM |
4078 | p->next = *head; |
4079 | *head = p; | |
4080 | p->sec = sec; | |
4081 | p->count = 0; | |
4082 | p->pc_count = 0; | |
4083 | } | |
4084 | ||
4085 | p->count += 1; | |
411e1bfb | 4086 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4087 | p->pc_count += 1; |
65f38f15 | 4088 | } |
5bd4f169 | 4089 | break; |
65f38f15 AM |
4090 | |
4091 | default: | |
96e0dda4 | 4092 | break; |
5bd4f169 AM |
4093 | } |
4094 | } | |
4095 | ||
b34976b6 | 4096 | return TRUE; |
5bd4f169 AM |
4097 | } |
4098 | ||
4099 | /* Return the section that should be marked against GC for a given | |
4100 | relocation. */ | |
4101 | ||
4102 | static asection * | |
1e2f5b6e AM |
4103 | ppc64_elf_gc_mark_hook (sec, info, rel, h, sym) |
4104 | asection *sec; | |
5bd4f169 AM |
4105 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
4106 | Elf_Internal_Rela *rel; | |
4107 | struct elf_link_hash_entry *h; | |
4108 | Elf_Internal_Sym *sym; | |
4109 | { | |
1e2f5b6e AM |
4110 | asection *rsec = NULL; |
4111 | ||
5bd4f169 AM |
4112 | if (h != NULL) |
4113 | { | |
04c9666a | 4114 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e | 4115 | struct ppc_link_hash_entry *fdh; |
a33d1f77 | 4116 | |
04c9666a | 4117 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4118 | switch (r_type) |
5bd4f169 AM |
4119 | { |
4120 | case R_PPC64_GNU_VTINHERIT: | |
4121 | case R_PPC64_GNU_VTENTRY: | |
4122 | break; | |
4123 | ||
4124 | default: | |
4125 | switch (h->root.type) | |
4126 | { | |
4127 | case bfd_link_hash_defined: | |
4128 | case bfd_link_hash_defweak: | |
1e2f5b6e AM |
4129 | fdh = (struct ppc_link_hash_entry *) h; |
4130 | ||
4131 | /* Function descriptor syms cause the associated | |
4132 | function code sym section to be marked. */ | |
4133 | if (fdh->is_func_descriptor) | |
4134 | rsec = fdh->oh->root.u.def.section; | |
4135 | ||
4136 | /* Function entry syms return NULL if they are in .opd | |
4137 | and are not ._start (or others undefined on the ld | |
4138 | command line). Thus we avoid marking all function | |
b34976b6 | 4139 | sections, as all functions are referenced in .opd. */ |
1e2f5b6e AM |
4140 | else if ((fdh->oh != NULL |
4141 | && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry) | |
f0abc2a1 | 4142 | || ppc64_elf_section_data (sec)->opd.func_sec == NULL) |
1e2f5b6e AM |
4143 | rsec = h->root.u.def.section; |
4144 | break; | |
5bd4f169 AM |
4145 | |
4146 | case bfd_link_hash_common: | |
1e2f5b6e AM |
4147 | rsec = h->root.u.c.p->section; |
4148 | break; | |
5bd4f169 AM |
4149 | |
4150 | default: | |
4151 | break; | |
4152 | } | |
4153 | } | |
4154 | } | |
4155 | else | |
4156 | { | |
1e2f5b6e AM |
4157 | asection **opd_sym_section; |
4158 | ||
4159 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
f0abc2a1 | 4160 | opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec; |
1e2f5b6e AM |
4161 | if (opd_sym_section != NULL) |
4162 | rsec = opd_sym_section[sym->st_value / 24]; | |
f0abc2a1 | 4163 | else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL) |
1e2f5b6e | 4164 | rsec = NULL; |
5bd4f169 AM |
4165 | } |
4166 | ||
1e2f5b6e | 4167 | return rsec; |
5bd4f169 AM |
4168 | } |
4169 | ||
65f38f15 AM |
4170 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4171 | section being removed. */ | |
5bd4f169 | 4172 | |
b34976b6 | 4173 | static bfd_boolean |
5bd4f169 AM |
4174 | ppc64_elf_gc_sweep_hook (abfd, info, sec, relocs) |
4175 | bfd *abfd; | |
411e1bfb | 4176 | struct bfd_link_info *info; |
5bd4f169 AM |
4177 | asection *sec; |
4178 | const Elf_Internal_Rela *relocs; | |
4179 | { | |
411e1bfb | 4180 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4181 | Elf_Internal_Shdr *symtab_hdr; |
4182 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4183 | struct got_entry **local_got_ents; |
5bd4f169 | 4184 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4185 | |
ec338859 AM |
4186 | elf_section_data (sec)->local_dynrel = NULL; |
4187 | ||
411e1bfb | 4188 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4189 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4190 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4191 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4192 | |
4193 | relend = relocs + sec->reloc_count; | |
4194 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4195 | { |
4196 | unsigned long r_symndx; | |
04c9666a | 4197 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4198 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4199 | char tls_type = 0; |
5bd4f169 | 4200 | |
a33d1f77 | 4201 | r_symndx = ELF64_R_SYM (rel->r_info); |
04c9666a | 4202 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4203 | if (r_symndx >= symtab_hdr->sh_info) |
4204 | { | |
4205 | struct ppc_link_hash_entry *eh; | |
4206 | struct ppc_dyn_relocs **pp; | |
4207 | struct ppc_dyn_relocs *p; | |
4208 | ||
4209 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4210 | eh = (struct ppc_link_hash_entry *) h; | |
4211 | ||
4212 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4213 | if (p->sec == sec) | |
4214 | { | |
4215 | /* Everything must go for SEC. */ | |
4216 | *pp = p->next; | |
4217 | break; | |
4218 | } | |
4219 | } | |
4220 | ||
a33d1f77 AM |
4221 | switch (r_type) |
4222 | { | |
411e1bfb AM |
4223 | case R_PPC64_GOT_TLSLD16: |
4224 | case R_PPC64_GOT_TLSLD16_LO: | |
4225 | case R_PPC64_GOT_TLSLD16_HI: | |
4226 | case R_PPC64_GOT_TLSLD16_HA: | |
4227 | htab->tlsld_got.refcount -= 1; | |
951fd09b | 4228 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4229 | goto dogot; |
4230 | ||
4231 | case R_PPC64_GOT_TLSGD16: | |
4232 | case R_PPC64_GOT_TLSGD16_LO: | |
4233 | case R_PPC64_GOT_TLSGD16_HI: | |
4234 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4235 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4236 | goto dogot; |
4237 | ||
4238 | case R_PPC64_GOT_TPREL16_DS: | |
4239 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4240 | case R_PPC64_GOT_TPREL16_HI: | |
4241 | case R_PPC64_GOT_TPREL16_HA: | |
4242 | tls_type = TLS_TLS | TLS_TPREL; | |
4243 | goto dogot; | |
4244 | ||
4245 | case R_PPC64_GOT_DTPREL16_DS: | |
4246 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4247 | case R_PPC64_GOT_DTPREL16_HI: | |
4248 | case R_PPC64_GOT_DTPREL16_HA: | |
4249 | tls_type = TLS_TLS | TLS_DTPREL; | |
4250 | goto dogot; | |
4251 | ||
a33d1f77 AM |
4252 | case R_PPC64_GOT16: |
4253 | case R_PPC64_GOT16_DS: | |
4254 | case R_PPC64_GOT16_HA: | |
4255 | case R_PPC64_GOT16_HI: | |
4256 | case R_PPC64_GOT16_LO: | |
4257 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
4258 | dogot: |
4259 | { | |
4260 | struct got_entry *ent; | |
4261 | ||
58ac9f71 AM |
4262 | if (h != NULL) |
4263 | ent = h->got.glist; | |
411e1bfb AM |
4264 | else |
4265 | ent = local_got_ents[r_symndx]; | |
4266 | ||
4267 | for (; ent != NULL; ent = ent->next) | |
4268 | if (ent->addend == rel->r_addend | |
4269 | && ent->tls_type == tls_type) | |
4270 | break; | |
4271 | if (ent == NULL) | |
4272 | abort (); | |
4273 | if (ent->got.refcount > 0) | |
4274 | ent->got.refcount -= 1; | |
4275 | } | |
a33d1f77 | 4276 | break; |
65f38f15 | 4277 | |
a33d1f77 AM |
4278 | case R_PPC64_PLT16_HA: |
4279 | case R_PPC64_PLT16_HI: | |
4280 | case R_PPC64_PLT16_LO: | |
4281 | case R_PPC64_PLT32: | |
4282 | case R_PPC64_PLT64: | |
721956f4 AM |
4283 | case R_PPC64_REL14: |
4284 | case R_PPC64_REL14_BRNTAKEN: | |
4285 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 4286 | case R_PPC64_REL24: |
58ac9f71 | 4287 | if (h != NULL) |
5d1634d7 | 4288 | { |
411e1bfb AM |
4289 | struct plt_entry *ent; |
4290 | ||
411e1bfb AM |
4291 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4292 | if (ent->addend == rel->r_addend) | |
4293 | break; | |
4294 | if (ent == NULL) | |
4295 | abort (); | |
4296 | if (ent->plt.refcount > 0) | |
4297 | ent->plt.refcount -= 1; | |
5d1634d7 | 4298 | } |
e86ce104 | 4299 | break; |
5d1634d7 | 4300 | |
a33d1f77 AM |
4301 | default: |
4302 | break; | |
4303 | } | |
4304 | } | |
b34976b6 | 4305 | return TRUE; |
5bd4f169 AM |
4306 | } |
4307 | ||
e86ce104 AM |
4308 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
4309 | information on function code symbol entries to their corresponding | |
4310 | function descriptor symbol entries. */ | |
b34976b6 | 4311 | static bfd_boolean |
e86ce104 | 4312 | func_desc_adjust (h, inf) |
5bd4f169 | 4313 | struct elf_link_hash_entry *h; |
e86ce104 | 4314 | PTR inf; |
5bd4f169 | 4315 | { |
e86ce104 | 4316 | struct bfd_link_info *info; |
65f38f15 | 4317 | struct ppc_link_hash_table *htab; |
411e1bfb | 4318 | struct plt_entry *ent; |
5bd4f169 | 4319 | |
e92d460e | 4320 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 4321 | return TRUE; |
e86ce104 | 4322 | |
e92d460e AM |
4323 | if (h->root.type == bfd_link_hash_warning) |
4324 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4325 | ||
e86ce104 | 4326 | info = (struct bfd_link_info *) inf; |
65f38f15 | 4327 | htab = ppc_hash_table (info); |
5bd4f169 | 4328 | |
e86ce104 AM |
4329 | /* If this is a function code symbol, transfer dynamic linking |
4330 | information to the function descriptor symbol. */ | |
4331 | if (!((struct ppc_link_hash_entry *) h)->is_func) | |
b34976b6 | 4332 | return TRUE; |
e86ce104 | 4333 | |
805fc799 AM |
4334 | if (h->root.type == bfd_link_hash_undefweak |
4335 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR)) | |
b34976b6 | 4336 | htab->have_undefweak = TRUE; |
805fc799 | 4337 | |
411e1bfb AM |
4338 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4339 | if (ent->plt.refcount > 0) | |
4340 | break; | |
4341 | if (ent != NULL | |
e86ce104 AM |
4342 | && h->root.root.string[0] == '.' |
4343 | && h->root.root.string[1] != '\0') | |
5bd4f169 | 4344 | { |
721956f4 | 4345 | struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh; |
b34976b6 | 4346 | bfd_boolean force_local; |
5bd4f169 | 4347 | |
648cca2c AM |
4348 | /* Find the corresponding function descriptor symbol. Create it |
4349 | as undefined if necessary. */ | |
5bd4f169 | 4350 | |
721956f4 AM |
4351 | if (fdh == NULL) |
4352 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 4353 | FALSE, FALSE, TRUE); |
5bd4f169 | 4354 | |
d926e03d AM |
4355 | if (fdh == NULL |
4356 | && info->shared | |
4357 | && (h->root.type == bfd_link_hash_undefined | |
4358 | || h->root.type == bfd_link_hash_undefweak)) | |
648cca2c AM |
4359 | { |
4360 | bfd *abfd; | |
4361 | asymbol *newsym; | |
14a793b2 | 4362 | struct bfd_link_hash_entry *bh; |
648cca2c | 4363 | |
d926e03d | 4364 | abfd = h->root.u.undef.abfd; |
648cca2c AM |
4365 | newsym = bfd_make_empty_symbol (abfd); |
4366 | newsym->name = h->root.root.string + 1; | |
4367 | newsym->section = bfd_und_section_ptr; | |
4368 | newsym->value = 0; | |
4369 | newsym->flags = BSF_OBJECT; | |
4370 | if (h->root.type == bfd_link_hash_undefweak) | |
4371 | newsym->flags |= BSF_WEAK; | |
4372 | ||
14a793b2 | 4373 | bh = &fdh->root; |
648cca2c AM |
4374 | if ( !(_bfd_generic_link_add_one_symbol |
4375 | (info, abfd, newsym->name, newsym->flags, | |
b34976b6 | 4376 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) |
648cca2c | 4377 | { |
b34976b6 | 4378 | return FALSE; |
648cca2c | 4379 | } |
14a793b2 | 4380 | fdh = (struct elf_link_hash_entry *) bh; |
d926e03d | 4381 | fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF; |
648cca2c AM |
4382 | } |
4383 | ||
e86ce104 AM |
4384 | if (fdh != NULL |
4385 | && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
4386 | && (info->shared | |
4387 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4388 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)) | |
4389 | { | |
4390 | if (fdh->dynindx == -1) | |
4391 | if (! bfd_elf64_link_record_dynamic_symbol (info, fdh)) | |
b34976b6 | 4392 | return FALSE; |
e86ce104 AM |
4393 | fdh->elf_link_hash_flags |= (h->elf_link_hash_flags |
4394 | & (ELF_LINK_HASH_REF_REGULAR | |
4395 | | ELF_LINK_HASH_REF_DYNAMIC | |
4396 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
4397 | | ELF_LINK_NON_GOT_REF)); | |
e1fa50e7 AM |
4398 | if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
4399 | { | |
411e1bfb | 4400 | fdh->plt.plist = h->plt.plist; |
e1fa50e7 AM |
4401 | fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
4402 | } | |
e86ce104 | 4403 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 4404 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
721956f4 | 4405 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
4406 | } |
4407 | ||
4408 | /* Now that the info is on the function descriptor, clear the | |
4409 | function code sym info. Any function code syms for which we | |
4410 | don't have a definition in a regular file, we force local. | |
4411 | This prevents a shared library from exporting syms that have | |
4412 | been imported from another library. Function code syms that | |
4413 | are really in the library we must leave global to prevent the | |
e1fa50e7 | 4414 | linker dragging in a definition from a static library. */ |
ea1e4b0d AM |
4415 | force_local = (info->shared |
4416 | && ((h->elf_link_hash_flags | |
4417 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4418 | || fdh == NULL | |
4419 | || (fdh->elf_link_hash_flags | |
4420 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4421 | || (fdh->elf_link_hash_flags | |
4422 | & ELF_LINK_FORCED_LOCAL) != 0)); | |
e86ce104 AM |
4423 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
4424 | } | |
4425 | ||
b34976b6 | 4426 | return TRUE; |
e86ce104 | 4427 | } |
40b8271b | 4428 | |
82bd7b59 AM |
4429 | #define MIN_SAVE_FPR 14 |
4430 | #define MAX_SAVE_FPR 31 | |
4431 | ||
e86ce104 | 4432 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
4433 | this hook to a) provide some gcc support functions, and b) transfer |
4434 | dynamic linking information gathered so far on function code symbol | |
4435 | entries, to their corresponding function descriptor symbol entries. */ | |
b34976b6 | 4436 | static bfd_boolean |
e86ce104 AM |
4437 | ppc64_elf_func_desc_adjust (obfd, info) |
4438 | bfd *obfd ATTRIBUTE_UNUSED; | |
4439 | struct bfd_link_info *info; | |
4440 | { | |
4441 | struct ppc_link_hash_table *htab; | |
82bd7b59 AM |
4442 | unsigned int lowest_savef = MAX_SAVE_FPR + 2; |
4443 | unsigned int lowest_restf = MAX_SAVE_FPR + 2; | |
4444 | unsigned int i; | |
4445 | struct elf_link_hash_entry *h; | |
721956f4 | 4446 | bfd_byte *p; |
82bd7b59 | 4447 | char sym[10]; |
e86ce104 AM |
4448 | |
4449 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
4450 | |
4451 | if (htab->sfpr == NULL) | |
4452 | /* We don't have any relocs. */ | |
b34976b6 | 4453 | return TRUE; |
82bd7b59 AM |
4454 | |
4455 | /* First provide any missing ._savef* and ._restf* functions. */ | |
4456 | memcpy (sym, "._savef14", 10); | |
4457 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4458 | { | |
4459 | sym[7] = i / 10 + '0'; | |
4460 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4461 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4462 | if (h != NULL |
4463 | && h->root.type == bfd_link_hash_undefined) | |
4464 | { | |
4465 | if (lowest_savef > i) | |
4466 | lowest_savef = i; | |
4467 | h->root.type = bfd_link_hash_defined; | |
4468 | h->root.u.def.section = htab->sfpr; | |
4469 | h->root.u.def.value = (i - lowest_savef) * 4; | |
4470 | h->type = STT_FUNC; | |
4471 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4472 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4473 | } | |
4474 | } | |
4475 | ||
4476 | memcpy (sym, "._restf14", 10); | |
4477 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4478 | { | |
4479 | sym[7] = i / 10 + '0'; | |
4480 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4481 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4482 | if (h != NULL |
4483 | && h->root.type == bfd_link_hash_undefined) | |
4484 | { | |
4485 | if (lowest_restf > i) | |
4486 | lowest_restf = i; | |
4487 | h->root.type = bfd_link_hash_defined; | |
4488 | h->root.u.def.section = htab->sfpr; | |
4489 | h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 | |
4490 | + (i - lowest_restf) * 4); | |
4491 | h->type = STT_FUNC; | |
4492 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4493 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4494 | } | |
4495 | } | |
4496 | ||
805fc799 AM |
4497 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, (PTR) info); |
4498 | ||
82bd7b59 AM |
4499 | htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 |
4500 | + (MAX_SAVE_FPR + 2 - lowest_restf) * 4); | |
4501 | ||
4502 | if (htab->sfpr->_raw_size == 0) | |
805fc799 AM |
4503 | { |
4504 | if (!htab->have_undefweak) | |
4505 | { | |
4506 | _bfd_strip_section_from_output (info, htab->sfpr); | |
b34976b6 | 4507 | return TRUE; |
805fc799 AM |
4508 | } |
4509 | ||
4510 | htab->sfpr->_raw_size = 4; | |
4511 | } | |
82bd7b59 | 4512 | |
721956f4 AM |
4513 | p = (bfd_byte *) bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size); |
4514 | if (p == NULL) | |
b34976b6 | 4515 | return FALSE; |
721956f4 AM |
4516 | htab->sfpr->contents = p; |
4517 | ||
4518 | for (i = lowest_savef; i <= MAX_SAVE_FPR; i++) | |
4519 | { | |
4520 | unsigned int fpr = i << 21; | |
4521 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4522 | bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p); | |
4523 | p += 4; | |
4524 | } | |
4525 | if (lowest_savef <= MAX_SAVE_FPR) | |
4526 | { | |
82bd7b59 AM |
4527 | bfd_put_32 (htab->elf.dynobj, BLR, p); |
4528 | p += 4; | |
721956f4 | 4529 | } |
82bd7b59 | 4530 | |
721956f4 AM |
4531 | for (i = lowest_restf; i <= MAX_SAVE_FPR; i++) |
4532 | { | |
4533 | unsigned int fpr = i << 21; | |
4534 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4535 | bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p); | |
82bd7b59 AM |
4536 | p += 4; |
4537 | } | |
721956f4 AM |
4538 | if (lowest_restf <= MAX_SAVE_FPR |
4539 | || htab->sfpr->_raw_size == 4) | |
4540 | { | |
4541 | bfd_put_32 (htab->elf.dynobj, BLR, p); | |
4542 | } | |
82bd7b59 | 4543 | |
b34976b6 | 4544 | return TRUE; |
e86ce104 AM |
4545 | } |
4546 | ||
4547 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4548 | regular object. The current definition is in some section of the | |
4549 | dynamic object, but we're not including those sections. We have to | |
4550 | change the definition to something the rest of the link can | |
4551 | understand. */ | |
4552 | ||
b34976b6 | 4553 | static bfd_boolean |
e86ce104 AM |
4554 | ppc64_elf_adjust_dynamic_symbol (info, h) |
4555 | struct bfd_link_info *info; | |
4556 | struct elf_link_hash_entry *h; | |
4557 | { | |
4558 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
4559 | asection *s; |
4560 | unsigned int power_of_two; | |
4561 | ||
4562 | htab = ppc_hash_table (info); | |
4563 | ||
4564 | /* Deal with function syms. */ | |
4565 | if (h->type == STT_FUNC | |
4566 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4567 | { | |
4568 | /* Clear procedure linkage table information for any symbol that | |
4569 | won't need a .plt entry. */ | |
411e1bfb AM |
4570 | struct plt_entry *ent; |
4571 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4572 | if (ent->plt.refcount > 0) | |
4573 | break; | |
e86ce104 | 4574 | if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor |
411e1bfb | 4575 | || ent == NULL |
9c7a29a3 AM |
4576 | || SYMBOL_CALLS_LOCAL (info, h) |
4577 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4578 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 4579 | { |
411e1bfb | 4580 | h->plt.plist = NULL; |
40b8271b | 4581 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
40b8271b | 4582 | } |
5bd4f169 | 4583 | } |
bbd7ec4a | 4584 | else |
411e1bfb | 4585 | h->plt.plist = NULL; |
5bd4f169 AM |
4586 | |
4587 | /* If this is a weak symbol, and there is a real definition, the | |
4588 | processor independent code will have arranged for us to see the | |
4589 | real definition first, and we can just use the same value. */ | |
4590 | if (h->weakdef != NULL) | |
4591 | { | |
4592 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4593 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4594 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4595 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
4596 | if (ELIMINATE_COPY_RELOCS) |
4597 | h->elf_link_hash_flags | |
4598 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
4599 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 4600 | return TRUE; |
5bd4f169 AM |
4601 | } |
4602 | ||
4603 | /* This is a reference to a symbol defined by a dynamic object which | |
4604 | is not a function. */ | |
4605 | ||
4606 | /* If we are creating a shared library, we must presume that the | |
4607 | only references to the symbol are via the global offset table. | |
4608 | For such cases we need not do anything here; the relocations will | |
4609 | be handled correctly by relocate_section. */ | |
4610 | if (info->shared) | |
b34976b6 | 4611 | return TRUE; |
5bd4f169 | 4612 | |
65f38f15 AM |
4613 | /* If there are no references to this symbol that do not use the |
4614 | GOT, we don't need to generate a copy reloc. */ | |
4615 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 4616 | return TRUE; |
65f38f15 | 4617 | |
f4656909 | 4618 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 4619 | { |
f4656909 AM |
4620 | struct ppc_link_hash_entry * eh; |
4621 | struct ppc_dyn_relocs *p; | |
65f38f15 | 4622 | |
f4656909 AM |
4623 | eh = (struct ppc_link_hash_entry *) h; |
4624 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4625 | { | |
4626 | s = p->sec->output_section; | |
4627 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
4628 | break; | |
4629 | } | |
4630 | ||
4631 | /* If we didn't find any dynamic relocs in read-only sections, then | |
4632 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
4633 | if (p == NULL) | |
4634 | { | |
4635 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
4636 | return TRUE; | |
4637 | } | |
65f38f15 AM |
4638 | } |
4639 | ||
5bd4f169 AM |
4640 | /* We must allocate the symbol in our .dynbss section, which will |
4641 | become part of the .bss section of the executable. There will be | |
4642 | an entry for this symbol in the .dynsym section. The dynamic | |
4643 | object will contain position independent code, so all references | |
4644 | from the dynamic object to this symbol will go through the global | |
4645 | offset table. The dynamic linker will use the .dynsym entry to | |
4646 | determine the address it must put in the global offset table, so | |
4647 | both the dynamic object and the regular object will refer to the | |
4648 | same memory location for the variable. */ | |
5bd4f169 | 4649 | |
04c9666a AM |
4650 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
4651 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
4652 | runtime process image. We need to remember the offset into the |
4653 | .rela.bss section we are going to use. */ | |
4654 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4655 | { | |
65f38f15 | 4656 | htab->srelbss->_raw_size += sizeof (Elf64_External_Rela); |
5bd4f169 AM |
4657 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4658 | } | |
4659 | ||
4660 | /* We need to figure out the alignment required for this symbol. I | |
4661 | have no idea how ELF linkers handle this. */ | |
4662 | power_of_two = bfd_log2 (h->size); | |
4663 | if (power_of_two > 4) | |
4664 | power_of_two = 4; | |
4665 | ||
4666 | /* Apply the required alignment. */ | |
65f38f15 AM |
4667 | s = htab->sdynbss; |
4668 | s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two)); | |
4669 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
5bd4f169 | 4670 | { |
65f38f15 | 4671 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 4672 | return FALSE; |
5bd4f169 AM |
4673 | } |
4674 | ||
4675 | /* Define the symbol as being at this point in the section. */ | |
4676 | h->root.u.def.section = s; | |
4677 | h->root.u.def.value = s->_raw_size; | |
4678 | ||
4679 | /* Increment the section size to make room for the symbol. */ | |
4680 | s->_raw_size += h->size; | |
4681 | ||
b34976b6 | 4682 | return TRUE; |
5bd4f169 AM |
4683 | } |
4684 | ||
e86ce104 AM |
4685 | /* If given a function descriptor symbol, hide both the function code |
4686 | sym and the descriptor. */ | |
4687 | static void | |
4688 | ppc64_elf_hide_symbol (info, h, force_local) | |
4689 | struct bfd_link_info *info; | |
4690 | struct elf_link_hash_entry *h; | |
b34976b6 | 4691 | bfd_boolean force_local; |
e86ce104 AM |
4692 | { |
4693 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); | |
4694 | ||
4695 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) | |
4696 | { | |
721956f4 | 4697 | struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh; |
e86ce104 | 4698 | |
721956f4 | 4699 | if (fh == NULL) |
d1329ca3 AM |
4700 | { |
4701 | const char *p, *q; | |
4702 | struct ppc_link_hash_table *htab; | |
4703 | char save; | |
4704 | ||
4705 | /* We aren't supposed to use alloca in BFD because on | |
4706 | systems which do not have alloca the version in libiberty | |
4707 | calls xmalloc, which might cause the program to crash | |
4708 | when it runs out of memory. This function doesn't have a | |
4709 | return status, so there's no way to gracefully return an | |
4710 | error. So cheat. We know that string[-1] can be safely | |
4711 | dereferenced; It's either a string in an ELF string | |
4712 | table, or allocated in an objalloc structure. */ | |
4713 | ||
4714 | p = h->root.root.string - 1; | |
4715 | save = *p; | |
4716 | *(char *) p = '.'; | |
4717 | htab = ppc_hash_table (info); | |
b34976b6 | 4718 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4719 | *(char *) p = save; |
4720 | ||
4721 | /* Unfortunately, if it so happens that the string we were | |
4722 | looking for was allocated immediately before this string, | |
4723 | then we overwrote the string terminator. That's the only | |
4724 | reason the lookup should fail. */ | |
4725 | if (fh == NULL) | |
4726 | { | |
4727 | q = h->root.root.string + strlen (h->root.root.string); | |
4728 | while (q >= h->root.root.string && *q == *p) | |
4729 | --q, --p; | |
4730 | if (q < h->root.root.string && *p == '.') | |
b34976b6 | 4731 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4732 | } |
4733 | if (fh != NULL) | |
4734 | { | |
4735 | ((struct ppc_link_hash_entry *) h)->oh = fh; | |
4736 | ((struct ppc_link_hash_entry *) fh)->oh = h; | |
4737 | } | |
4738 | } | |
e86ce104 AM |
4739 | if (fh != NULL) |
4740 | _bfd_elf_link_hash_hide_symbol (info, fh, force_local); | |
4741 | } | |
4742 | } | |
4743 | ||
411e1bfb | 4744 | static bfd_boolean |
e7b938ca | 4745 | get_sym_h (hp, symp, symsecp, tls_maskp, locsymsp, r_symndx, ibfd) |
411e1bfb AM |
4746 | struct elf_link_hash_entry **hp; |
4747 | Elf_Internal_Sym **symp; | |
4748 | asection **symsecp; | |
e7b938ca | 4749 | char **tls_maskp; |
411e1bfb AM |
4750 | Elf_Internal_Sym **locsymsp; |
4751 | unsigned long r_symndx; | |
4752 | bfd *ibfd; | |
4753 | { | |
4754 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4755 | ||
4756 | if (r_symndx >= symtab_hdr->sh_info) | |
4757 | { | |
4758 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4759 | struct elf_link_hash_entry *h; | |
4760 | ||
4761 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4762 | while (h->root.type == bfd_link_hash_indirect | |
4763 | || h->root.type == bfd_link_hash_warning) | |
4764 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4765 | ||
4766 | if (hp != NULL) | |
4767 | *hp = h; | |
4768 | ||
4769 | if (symp != NULL) | |
4770 | *symp = NULL; | |
4771 | ||
4772 | if (symsecp != NULL) | |
4773 | { | |
4774 | asection *symsec = NULL; | |
4775 | if (h->root.type == bfd_link_hash_defined | |
4776 | || h->root.type == bfd_link_hash_defweak) | |
4777 | symsec = h->root.u.def.section; | |
4778 | *symsecp = symsec; | |
4779 | } | |
4780 | ||
e7b938ca | 4781 | if (tls_maskp != NULL) |
411e1bfb AM |
4782 | { |
4783 | struct ppc_link_hash_entry *eh; | |
4784 | ||
4785 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4786 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
4787 | } |
4788 | } | |
4789 | else | |
4790 | { | |
4791 | Elf_Internal_Sym *sym; | |
4792 | Elf_Internal_Sym *locsyms = *locsymsp; | |
4793 | ||
4794 | if (locsyms == NULL) | |
4795 | { | |
4796 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4797 | if (locsyms == NULL) | |
4798 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4799 | symtab_hdr->sh_info, | |
4800 | 0, NULL, NULL, NULL); | |
4801 | if (locsyms == NULL) | |
4802 | return FALSE; | |
4803 | *locsymsp = locsyms; | |
4804 | } | |
4805 | sym = locsyms + r_symndx; | |
4806 | ||
4807 | if (hp != NULL) | |
4808 | *hp = NULL; | |
4809 | ||
4810 | if (symp != NULL) | |
4811 | *symp = sym; | |
4812 | ||
4813 | if (symsecp != NULL) | |
4814 | { | |
4815 | asection *symsec = NULL; | |
4816 | if ((sym->st_shndx != SHN_UNDEF | |
4817 | && sym->st_shndx < SHN_LORESERVE) | |
4818 | || sym->st_shndx > SHN_HIRESERVE) | |
4819 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
4820 | *symsecp = symsec; | |
4821 | } | |
4822 | ||
e7b938ca | 4823 | if (tls_maskp != NULL) |
411e1bfb AM |
4824 | { |
4825 | struct got_entry **lgot_ents; | |
e7b938ca | 4826 | char *tls_mask; |
411e1bfb | 4827 | |
e7b938ca | 4828 | tls_mask = NULL; |
411e1bfb AM |
4829 | lgot_ents = elf_local_got_ents (ibfd); |
4830 | if (lgot_ents != NULL) | |
4831 | { | |
e7b938ca AM |
4832 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
4833 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 4834 | } |
e7b938ca | 4835 | *tls_maskp = tls_mask; |
411e1bfb AM |
4836 | } |
4837 | } | |
4838 | return TRUE; | |
4839 | } | |
4840 | ||
e7b938ca | 4841 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 4842 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 4843 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
4844 | |
4845 | static int | |
e7b938ca AM |
4846 | get_tls_mask (tls_maskp, locsymsp, rel, ibfd) |
4847 | char **tls_maskp; | |
411e1bfb AM |
4848 | Elf_Internal_Sym **locsymsp; |
4849 | const Elf_Internal_Rela *rel; | |
4850 | bfd *ibfd; | |
4851 | { | |
4852 | unsigned long r_symndx; | |
951fd09b | 4853 | unsigned int next_r; |
411e1bfb AM |
4854 | struct elf_link_hash_entry *h; |
4855 | Elf_Internal_Sym *sym; | |
4856 | asection *sec; | |
4857 | bfd_vma off; | |
4858 | ||
4859 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 4860 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4861 | return 0; |
411e1bfb | 4862 | |
e7b938ca | 4863 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
4864 | || sec == NULL |
4865 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 4866 | return 1; |
411e1bfb AM |
4867 | |
4868 | /* Look inside a TOC section too. */ | |
4869 | if (h != NULL) | |
4870 | { | |
4871 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
4872 | off = h->root.u.def.value; | |
4873 | } | |
4874 | else | |
4875 | off = sym->st_value; | |
4876 | off += rel->r_addend; | |
4877 | BFD_ASSERT (off % 8 == 0); | |
4878 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 4879 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 4880 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b AM |
4881 | return 0; |
4882 | if (h == NULL | |
4883 | || h->root.type == bfd_link_hash_defined | |
4884 | || h->root.type == bfd_link_hash_defweak) | |
4885 | { | |
4886 | if (next_r == (unsigned) -1) | |
4887 | return 2; | |
4888 | if (next_r == (unsigned) -2 | |
4889 | && (h == NULL | |
4890 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4891 | return 3; | |
4892 | } | |
4893 | return 1; | |
411e1bfb AM |
4894 | } |
4895 | ||
b34976b6 | 4896 | bfd_boolean |
d6fe2dc1 | 4897 | ppc64_elf_edit_opd (obfd, info) |
1e2f5b6e AM |
4898 | bfd *obfd; |
4899 | struct bfd_link_info *info; | |
4900 | { | |
4901 | bfd *ibfd; | |
1e2f5b6e | 4902 | |
411e1bfb | 4903 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
4904 | { |
4905 | asection *sec; | |
4906 | Elf_Internal_Rela *relstart, *rel, *relend; | |
4907 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 4908 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
4909 | struct elf_link_hash_entry **sym_hashes; |
4910 | bfd_vma offset; | |
d6fe2dc1 | 4911 | bfd_size_type amt; |
1e2f5b6e | 4912 | long *adjust; |
b34976b6 | 4913 | bfd_boolean need_edit; |
1e2f5b6e AM |
4914 | |
4915 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
4916 | if (sec == NULL) | |
4917 | continue; | |
4918 | ||
d6fe2dc1 | 4919 | amt = sec->_raw_size * sizeof (long) / 24; |
f0abc2a1 | 4920 | adjust = ppc64_elf_section_data (sec)->opd.adjust; |
d6fe2dc1 AM |
4921 | if (adjust == NULL) |
4922 | { | |
4923 | /* Must be a ld -r link. ie. check_relocs hasn't been | |
4924 | called. */ | |
4925 | adjust = (long *) bfd_zalloc (obfd, amt); | |
f0abc2a1 | 4926 | ppc64_elf_section_data (sec)->opd.adjust = adjust; |
d6fe2dc1 AM |
4927 | } |
4928 | memset (adjust, 0, (size_t) amt); | |
1e2f5b6e AM |
4929 | |
4930 | if (sec->output_section == bfd_abs_section_ptr) | |
4931 | continue; | |
4932 | ||
4933 | /* Look through the section relocs. */ | |
4934 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
4935 | continue; | |
4936 | ||
6cdc0ccc | 4937 | local_syms = NULL; |
1e2f5b6e AM |
4938 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
4939 | sym_hashes = elf_sym_hashes (ibfd); | |
4940 | ||
4941 | /* Read the relocations. */ | |
45d6a902 AM |
4942 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, (PTR) NULL, |
4943 | (Elf_Internal_Rela *) NULL, | |
4944 | info->keep_memory); | |
1e2f5b6e | 4945 | if (relstart == NULL) |
b34976b6 | 4946 | return FALSE; |
1e2f5b6e AM |
4947 | |
4948 | /* First run through the relocs to check they are sane, and to | |
4949 | determine whether we need to edit this opd section. */ | |
b34976b6 | 4950 | need_edit = FALSE; |
1e2f5b6e AM |
4951 | offset = 0; |
4952 | relend = relstart + sec->reloc_count; | |
4953 | for (rel = relstart; rel < relend; rel++) | |
4954 | { | |
04c9666a | 4955 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
4956 | unsigned long r_symndx; |
4957 | asection *sym_sec; | |
4958 | struct elf_link_hash_entry *h; | |
4959 | Elf_Internal_Sym *sym; | |
4960 | ||
4961 | /* .opd contains a regular array of 24 byte entries. We're | |
4962 | only interested in the reloc pointing to a function entry | |
4963 | point. */ | |
04c9666a | 4964 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
1e2f5b6e AM |
4965 | if (r_type == R_PPC64_TOC) |
4966 | continue; | |
4967 | ||
4968 | if (r_type != R_PPC64_ADDR64) | |
4969 | { | |
4970 | (*_bfd_error_handler) | |
4971 | (_("%s: unexpected reloc type %u in .opd section"), | |
4972 | bfd_archive_filename (ibfd), r_type); | |
b34976b6 | 4973 | need_edit = FALSE; |
1e2f5b6e AM |
4974 | break; |
4975 | } | |
4976 | ||
4977 | if (rel + 1 >= relend) | |
4978 | continue; | |
04c9666a | 4979 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info); |
1e2f5b6e AM |
4980 | if (r_type != R_PPC64_TOC) |
4981 | continue; | |
4982 | ||
4983 | if (rel->r_offset != offset) | |
4984 | { | |
4985 | /* If someone messes with .opd alignment then after a | |
4986 | "ld -r" we might have padding in the middle of .opd. | |
4987 | Also, there's nothing to prevent someone putting | |
4988 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 4989 | optimization for them! */ |
1e2f5b6e AM |
4990 | (*_bfd_error_handler) |
4991 | (_("%s: .opd is not a regular array of opd entries"), | |
4992 | bfd_archive_filename (ibfd)); | |
b34976b6 | 4993 | need_edit = FALSE; |
1e2f5b6e AM |
4994 | break; |
4995 | } | |
4996 | ||
4997 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
4998 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
4999 | r_symndx, ibfd)) | |
5000 | goto error_free_rel; | |
1e2f5b6e AM |
5001 | |
5002 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
5003 | { | |
411e1bfb AM |
5004 | const char *sym_name; |
5005 | if (h != NULL) | |
5006 | sym_name = h->root.root.string; | |
5007 | else | |
5008 | sym_name = bfd_elf_local_sym_name (ibfd, sym); | |
5009 | ||
1e2f5b6e AM |
5010 | (*_bfd_error_handler) |
5011 | (_("%s: undefined sym `%s' in .opd section"), | |
5012 | bfd_archive_filename (ibfd), | |
411e1bfb | 5013 | sym_name); |
b34976b6 | 5014 | need_edit = FALSE; |
1e2f5b6e AM |
5015 | break; |
5016 | } | |
5017 | ||
51020317 AM |
5018 | /* opd entries are always for functions defined in the |
5019 | current input bfd. If the symbol isn't defined in the | |
5020 | input bfd, then we won't be using the function in this | |
5021 | bfd; It must be defined in a linkonce section in another | |
5022 | bfd, or is weak. It's also possible that we are | |
5023 | discarding the function due to a linker script /DISCARD/, | |
5024 | which we test for via the output_section. */ | |
5025 | if (sym_sec->owner != ibfd | |
5026 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 5027 | need_edit = TRUE; |
1e2f5b6e AM |
5028 | |
5029 | offset += 24; | |
5030 | } | |
5031 | ||
5032 | if (need_edit) | |
5033 | { | |
5034 | Elf_Internal_Rela *write_rel; | |
5035 | bfd_byte *rptr, *wptr; | |
b34976b6 | 5036 | bfd_boolean skip; |
1e2f5b6e AM |
5037 | |
5038 | /* This seems a waste of time as input .opd sections are all | |
5039 | zeros as generated by gcc, but I suppose there's no reason | |
5040 | this will always be so. We might start putting something in | |
5041 | the third word of .opd entries. */ | |
5042 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
5043 | { | |
5044 | bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size); | |
6cdc0ccc AM |
5045 | if (loc == NULL |
5046 | || !bfd_get_section_contents (ibfd, sec, loc, (bfd_vma) 0, | |
5047 | sec->_raw_size)) | |
5048 | { | |
5049 | if (local_syms != NULL | |
5050 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5051 | free (local_syms); | |
5052 | error_free_rel: | |
5053 | if (elf_section_data (sec)->relocs != relstart) | |
5054 | free (relstart); | |
b34976b6 | 5055 | return FALSE; |
6cdc0ccc | 5056 | } |
1e2f5b6e AM |
5057 | sec->contents = loc; |
5058 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
5059 | } | |
5060 | ||
5061 | elf_section_data (sec)->relocs = relstart; | |
5062 | ||
5063 | wptr = sec->contents; | |
5064 | rptr = sec->contents; | |
5065 | write_rel = relstart; | |
b34976b6 | 5066 | skip = FALSE; |
1e2f5b6e AM |
5067 | offset = 0; |
5068 | for (rel = relstart; rel < relend; rel++) | |
5069 | { | |
5070 | if (rel->r_offset == offset) | |
5071 | { | |
5072 | unsigned long r_symndx; | |
5073 | asection *sym_sec; | |
5074 | struct elf_link_hash_entry *h; | |
5075 | Elf_Internal_Sym *sym; | |
5076 | ||
5077 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
5078 | get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
5079 | r_symndx, ibfd); | |
1e2f5b6e | 5080 | |
51020317 AM |
5081 | skip = (sym_sec->owner != ibfd |
5082 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
5083 | if (skip) |
5084 | { | |
0be617ce | 5085 | if (h != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
5086 | { |
5087 | /* Arrange for the function descriptor sym | |
5088 | to be dropped. */ | |
d6fe2dc1 | 5089 | struct ppc_link_hash_entry *fdh; |
a4aa0fb7 AM |
5090 | struct ppc_link_hash_entry *fh; |
5091 | ||
5092 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
5093 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
5094 | if (fdh == NULL) | |
5095 | { | |
5096 | const char *fd_name; | |
5097 | struct ppc_link_hash_table *htab; | |
5098 | ||
5099 | fd_name = h->root.root.string + 1; | |
5100 | htab = ppc_hash_table (info); | |
5101 | fdh = (struct ppc_link_hash_entry *) | |
5102 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 5103 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
5104 | fdh->is_func_descriptor = 1; |
5105 | fdh->oh = &fh->elf; | |
5106 | fh->is_func = 1; | |
5107 | fh->oh = &fdh->elf; | |
5108 | } | |
5109 | ||
5110 | fdh->elf.root.u.def.value = 0; | |
5111 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 AM |
5112 | } |
5113 | } | |
5114 | else | |
1e2f5b6e AM |
5115 | { |
5116 | /* We'll be keeping this opd entry. */ | |
5117 | ||
5118 | if (h != NULL) | |
5119 | { | |
5120 | /* Redefine the function descriptor symbol | |
5121 | to this location in the opd section. | |
5122 | We've checked above that opd relocs are | |
5123 | ordered. */ | |
d6fe2dc1 | 5124 | struct ppc_link_hash_entry *fdh; |
1e2f5b6e AM |
5125 | struct ppc_link_hash_entry *fh; |
5126 | ||
5127 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
5128 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
5129 | if (fdh == NULL) | |
5130 | { | |
5131 | const char *fd_name; | |
5132 | struct ppc_link_hash_table *htab; | |
5133 | ||
5134 | fd_name = h->root.root.string + 1; | |
5135 | htab = ppc_hash_table (info); | |
5136 | fdh = (struct ppc_link_hash_entry *) | |
5137 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 5138 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
5139 | fdh->is_func_descriptor = 1; |
5140 | fdh->oh = &fh->elf; | |
5141 | fh->is_func = 1; | |
5142 | fh->oh = &fdh->elf; | |
5143 | } | |
5144 | ||
5145 | fdh->elf.root.u.def.value = wptr - sec->contents; | |
1e2f5b6e AM |
5146 | } |
5147 | else | |
5148 | { | |
6cdc0ccc AM |
5149 | /* Local syms are a bit tricky. We could |
5150 | tweak them as they can be cached, but | |
5151 | we'd need to look through the local syms | |
5152 | for the function descriptor sym which we | |
5153 | don't have at the moment. So keep an | |
b34976b6 | 5154 | array of adjustments. */ |
7f6a7663 | 5155 | adjust[rel->r_offset / 24] = wptr - rptr; |
1e2f5b6e AM |
5156 | } |
5157 | ||
5158 | if (wptr != rptr) | |
5159 | memcpy (wptr, rptr, 24); | |
5160 | wptr += 24; | |
5161 | } | |
5162 | rptr += 24; | |
5163 | offset += 24; | |
5164 | } | |
5165 | ||
5166 | /* We need to adjust any reloc offsets to point to the | |
5167 | new opd entries. While we're at it, we may as well | |
5168 | remove redundant relocs. */ | |
5169 | if (!skip) | |
5170 | { | |
5171 | rel->r_offset += wptr - rptr; | |
5172 | if (write_rel != rel) | |
5173 | memcpy (write_rel, rel, sizeof (*rel)); | |
5174 | ++write_rel; | |
5175 | } | |
5176 | } | |
5177 | ||
5178 | sec->_cooked_size = wptr - sec->contents; | |
5179 | sec->reloc_count = write_rel - relstart; | |
cdcf6e38 AM |
5180 | /* Fudge the size too, as this is used later in |
5181 | elf_bfd_final_link if we are emitting relocs. */ | |
5182 | elf_section_data (sec)->rel_hdr.sh_size | |
5183 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
5184 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
1e2f5b6e | 5185 | } |
6cdc0ccc | 5186 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 5187 | free (relstart); |
6cdc0ccc | 5188 | |
411e1bfb AM |
5189 | if (local_syms != NULL |
5190 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5191 | { | |
5192 | if (!info->keep_memory) | |
5193 | free (local_syms); | |
5194 | else | |
5195 | symtab_hdr->contents = (unsigned char *) local_syms; | |
5196 | } | |
5197 | } | |
5198 | ||
5199 | return TRUE; | |
5200 | } | |
5201 | ||
951fd09b | 5202 | /* Set htab->tls_sec. */ |
411e1bfb AM |
5203 | |
5204 | bfd_boolean | |
951fd09b | 5205 | ppc64_elf_tls_setup (obfd, info) |
411e1bfb AM |
5206 | bfd *obfd; |
5207 | struct bfd_link_info *info; | |
5208 | { | |
5209 | asection *tls; | |
411e1bfb AM |
5210 | struct ppc_link_hash_table *htab; |
5211 | ||
411e1bfb AM |
5212 | for (tls = obfd->sections; tls != NULL; tls = tls->next) |
5213 | if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5214 | == (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5215 | break; | |
411e1bfb AM |
5216 | |
5217 | htab = ppc_hash_table (info); | |
5218 | htab->tls_sec = tls; | |
a48ebf4d AM |
5219 | |
5220 | if (htab->tls_get_addr != NULL) | |
5221 | { | |
5222 | struct elf_link_hash_entry *h = htab->tls_get_addr; | |
5223 | ||
5224 | while (h->root.type == bfd_link_hash_indirect | |
5225 | || h->root.type == bfd_link_hash_warning) | |
5226 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5227 | ||
5228 | htab->tls_get_addr = h; | |
5229 | } | |
5230 | ||
951fd09b AM |
5231 | return tls != NULL; |
5232 | } | |
411e1bfb | 5233 | |
951fd09b AM |
5234 | /* Run through all the TLS relocs looking for optimization |
5235 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
5236 | a preliminary section layout so that we know the TLS segment | |
5237 | offsets. We can't optimize earlier because some optimizations need | |
5238 | to know the tp offset, and we need to optimize before allocating | |
5239 | dynamic relocations. */ | |
5240 | ||
5241 | bfd_boolean | |
5242 | ppc64_elf_tls_optimize (obfd, info) | |
5243 | bfd *obfd ATTRIBUTE_UNUSED; | |
5244 | struct bfd_link_info *info; | |
5245 | { | |
5246 | bfd *ibfd; | |
5247 | asection *sec; | |
5248 | struct ppc_link_hash_table *htab; | |
5249 | ||
5250 | if (info->relocateable || info->shared) | |
411e1bfb AM |
5251 | return TRUE; |
5252 | ||
951fd09b | 5253 | htab = ppc_hash_table (info); |
411e1bfb AM |
5254 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5255 | { | |
5256 | Elf_Internal_Sym *locsyms = NULL; | |
5257 | ||
5258 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
5259 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5260 | { | |
5261 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5262 | int expecting_tls_get_addr; | |
5263 | ||
5264 | /* Read the relocations. */ | |
45d6a902 AM |
5265 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, (PTR) NULL, |
5266 | (Elf_Internal_Rela *) NULL, | |
5267 | info->keep_memory); | |
411e1bfb AM |
5268 | if (relstart == NULL) |
5269 | return FALSE; | |
5270 | ||
5271 | expecting_tls_get_addr = 0; | |
5272 | relend = relstart + sec->reloc_count; | |
5273 | for (rel = relstart; rel < relend; rel++) | |
5274 | { | |
5275 | enum elf_ppc64_reloc_type r_type; | |
5276 | unsigned long r_symndx; | |
5277 | struct elf_link_hash_entry *h; | |
5278 | Elf_Internal_Sym *sym; | |
5279 | asection *sym_sec; | |
e7b938ca AM |
5280 | char *tls_mask; |
5281 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 5282 | bfd_vma value; |
951fd09b | 5283 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
5284 | |
5285 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5286 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
5287 | r_symndx, ibfd)) |
5288 | { | |
5289 | err_free_rel: | |
5290 | if (elf_section_data (sec)->relocs != relstart) | |
5291 | free (relstart); | |
5292 | if (locsyms != NULL | |
5293 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5294 | != (unsigned char *) locsyms)) | |
5295 | free (locsyms); | |
5296 | return FALSE; | |
5297 | } | |
5298 | ||
5299 | if (h != NULL) | |
5300 | { | |
5301 | if (h->root.type != bfd_link_hash_defined | |
5302 | && h->root.type != bfd_link_hash_defweak) | |
5303 | continue; | |
5304 | value = h->root.u.def.value; | |
5305 | } | |
5306 | else | |
5307 | value = sym->st_value; | |
951fd09b | 5308 | |
411e1bfb | 5309 | ok_tprel = FALSE; |
951fd09b AM |
5310 | is_local = FALSE; |
5311 | if (h == NULL | |
5312 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5313 | { |
951fd09b | 5314 | is_local = TRUE; |
411e1bfb AM |
5315 | value += sym_sec->output_offset; |
5316 | value += sym_sec->output_section->vma; | |
5317 | value -= htab->tls_sec->vma; | |
5318 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
5319 | < (bfd_vma) 1 << 32); | |
5320 | } | |
5321 | ||
5322 | r_type | |
5323 | = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); | |
5324 | switch (r_type) | |
5325 | { | |
5326 | case R_PPC64_GOT_TLSLD16: | |
5327 | case R_PPC64_GOT_TLSLD16_LO: | |
5328 | case R_PPC64_GOT_TLSLD16_HI: | |
5329 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
5330 | /* These relocs should never be against a symbol |
5331 | defined in a shared lib. Leave them alone if | |
5332 | that turns out to be the case. */ | |
d881513a | 5333 | htab->tlsld_got.refcount -= 1; |
951fd09b AM |
5334 | if (!is_local) |
5335 | continue; | |
5336 | ||
951fd09b AM |
5337 | /* LD -> LE */ |
5338 | tls_set = 0; | |
5339 | tls_clear = TLS_LD; | |
e7b938ca | 5340 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5341 | expecting_tls_get_addr = 1; |
5342 | break; | |
5343 | ||
5344 | case R_PPC64_GOT_TLSGD16: | |
5345 | case R_PPC64_GOT_TLSGD16_LO: | |
5346 | case R_PPC64_GOT_TLSGD16_HI: | |
5347 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5348 | if (ok_tprel) |
411e1bfb AM |
5349 | /* GD -> LE */ |
5350 | tls_set = 0; | |
5351 | else | |
5352 | /* GD -> IE */ | |
951fd09b AM |
5353 | tls_set = TLS_TLS | TLS_TPRELGD; |
5354 | tls_clear = TLS_GD; | |
e7b938ca | 5355 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5356 | expecting_tls_get_addr = 1; |
5357 | break; | |
5358 | ||
5359 | case R_PPC64_GOT_TPREL16_DS: | |
5360 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5361 | case R_PPC64_GOT_TPREL16_HI: | |
5362 | case R_PPC64_GOT_TPREL16_HA: | |
5363 | expecting_tls_get_addr = 0; | |
5364 | if (ok_tprel) | |
5365 | { | |
5366 | /* IE -> LE */ | |
5367 | tls_set = 0; | |
5368 | tls_clear = TLS_TPREL; | |
e7b938ca | 5369 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
5370 | break; |
5371 | } | |
5372 | else | |
5373 | continue; | |
5374 | ||
5375 | case R_PPC64_REL14: | |
5376 | case R_PPC64_REL14_BRTAKEN: | |
5377 | case R_PPC64_REL14_BRNTAKEN: | |
5378 | case R_PPC64_REL24: | |
5379 | if (h != NULL | |
5380 | && h == htab->tls_get_addr) | |
5381 | { | |
5382 | if (!expecting_tls_get_addr | |
5383 | && rel != relstart | |
5384 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
5385 | == R_PPC64_TOC16) | |
5386 | || (ELF64_R_TYPE (rel[-1].r_info) | |
5387 | == R_PPC64_TOC16_LO))) | |
5388 | { | |
5389 | /* Check for toc tls entries. */ | |
5390 | char *toc_tls; | |
951fd09b | 5391 | int retval; |
411e1bfb | 5392 | |
e7b938ca | 5393 | retval = get_tls_mask (&toc_tls, &locsyms, |
951fd09b AM |
5394 | rel - 1, ibfd); |
5395 | if (retval == 0) | |
411e1bfb AM |
5396 | goto err_free_rel; |
5397 | if (toc_tls != NULL) | |
951fd09b | 5398 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
5399 | } |
5400 | ||
5401 | if (expecting_tls_get_addr) | |
5402 | { | |
5403 | struct plt_entry *ent; | |
5404 | for (ent = h->plt.plist; ent; ent = ent->next) | |
5405 | if (ent->addend == 0) | |
5406 | { | |
5407 | if (ent->plt.refcount > 0) | |
5408 | ent->plt.refcount -= 1; | |
5409 | break; | |
5410 | } | |
5411 | } | |
5412 | } | |
5413 | expecting_tls_get_addr = 0; | |
5414 | continue; | |
5415 | ||
5416 | case R_PPC64_TPREL64: | |
5417 | expecting_tls_get_addr = 0; | |
5418 | if (ok_tprel) | |
5419 | { | |
5420 | /* IE -> LE */ | |
5421 | tls_set = TLS_EXPLICIT; | |
5422 | tls_clear = TLS_TPREL; | |
5423 | break; | |
5424 | } | |
5425 | else | |
5426 | continue; | |
5427 | ||
5428 | case R_PPC64_DTPMOD64: | |
5429 | expecting_tls_get_addr = 0; | |
951fd09b AM |
5430 | if (rel + 1 < relend |
5431 | && (rel[1].r_info | |
5432 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
5433 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 5434 | { |
951fd09b | 5435 | if (ok_tprel) |
411e1bfb | 5436 | /* GD -> LE */ |
951fd09b | 5437 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
5438 | else |
5439 | /* GD -> IE */ | |
951fd09b AM |
5440 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
5441 | tls_clear = TLS_GD; | |
411e1bfb AM |
5442 | } |
5443 | else | |
5444 | { | |
951fd09b AM |
5445 | if (!is_local) |
5446 | continue; | |
5447 | ||
5448 | /* LD -> LE */ | |
5449 | tls_set = TLS_EXPLICIT; | |
5450 | tls_clear = TLS_LD; | |
411e1bfb AM |
5451 | } |
5452 | break; | |
5453 | ||
5454 | default: | |
5455 | expecting_tls_get_addr = 0; | |
5456 | continue; | |
5457 | } | |
5458 | ||
5459 | if ((tls_set & TLS_EXPLICIT) == 0) | |
5460 | { | |
5461 | struct got_entry *ent; | |
5462 | ||
5463 | /* Adjust got entry for this reloc. */ | |
5464 | if (h != NULL) | |
5465 | ent = h->got.glist; | |
5466 | else | |
5467 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
5468 | ||
5469 | for (; ent != NULL; ent = ent->next) | |
5470 | if (ent->addend == rel->r_addend | |
e7b938ca | 5471 | && ent->tls_type == tls_type) |
411e1bfb AM |
5472 | break; |
5473 | if (ent == NULL) | |
5474 | abort (); | |
5475 | ||
5476 | if (tls_set == 0) | |
5477 | { | |
5478 | /* We managed to get rid of a got entry. */ | |
5479 | if (ent->got.refcount > 0) | |
5480 | ent->got.refcount -= 1; | |
5481 | } | |
411e1bfb AM |
5482 | } |
5483 | else if (h != NULL) | |
5484 | { | |
5485 | struct ppc_link_hash_entry * eh; | |
5486 | struct ppc_dyn_relocs **pp; | |
5487 | struct ppc_dyn_relocs *p; | |
5488 | ||
5489 | /* Adjust dynamic relocs. */ | |
5490 | eh = (struct ppc_link_hash_entry *) h; | |
5491 | for (pp = &eh->dyn_relocs; | |
5492 | (p = *pp) != NULL; | |
5493 | pp = &p->next) | |
5494 | if (p->sec == sec) | |
5495 | { | |
5496 | /* If we got rid of a DTPMOD/DTPREL reloc | |
5497 | pair then we'll lose one or two dyn | |
5498 | relocs. */ | |
951fd09b | 5499 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 5500 | p->count -= 1; |
951fd09b | 5501 | p->count -= 1; |
411e1bfb AM |
5502 | if (p->count == 0) |
5503 | *pp = p->next; | |
5504 | break; | |
5505 | } | |
5506 | } | |
5507 | ||
e7b938ca AM |
5508 | *tls_mask |= tls_set; |
5509 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
5510 | } |
5511 | ||
5512 | if (elf_section_data (sec)->relocs != relstart) | |
5513 | free (relstart); | |
5514 | } | |
5515 | ||
5516 | if (locsyms != NULL | |
5517 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5518 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
5519 | { |
5520 | if (!info->keep_memory) | |
411e1bfb | 5521 | free (locsyms); |
6cdc0ccc | 5522 | else |
411e1bfb | 5523 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 5524 | } |
1e2f5b6e | 5525 | } |
b34976b6 | 5526 | return TRUE; |
1e2f5b6e | 5527 | } |
b34976b6 | 5528 | |
65f38f15 AM |
5529 | /* This is the condition under which ppc64_elf_finish_dynamic_symbol |
5530 | will be called from elflink.h. If elflink.h doesn't call our | |
5531 | finish_dynamic_symbol routine, we'll need to do something about | |
5532 | initializing any .plt and .got entries in ppc64_elf_relocate_section. */ | |
f4656909 | 5533 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
65f38f15 | 5534 | ((DYN) \ |
f4656909 | 5535 | && ((SHARED) \ |
65f38f15 AM |
5536 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
5537 | && ((H)->dynindx != -1 \ | |
5538 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
5bd4f169 | 5539 | |
65f38f15 AM |
5540 | /* Allocate space in .plt, .got and associated reloc sections for |
5541 | dynamic relocs. */ | |
5bd4f169 | 5542 | |
b34976b6 | 5543 | static bfd_boolean |
65f38f15 AM |
5544 | allocate_dynrelocs (h, inf) |
5545 | struct elf_link_hash_entry *h; | |
5546 | PTR inf; | |
5bd4f169 | 5547 | { |
65f38f15 AM |
5548 | struct bfd_link_info *info; |
5549 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 5550 | asection *s; |
65f38f15 AM |
5551 | struct ppc_link_hash_entry *eh; |
5552 | struct ppc_dyn_relocs *p; | |
411e1bfb | 5553 | struct got_entry *gent; |
5bd4f169 | 5554 | |
e92d460e | 5555 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5556 | return TRUE; |
5bd4f169 | 5557 | |
e92d460e AM |
5558 | if (h->root.type == bfd_link_hash_warning) |
5559 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5560 | ||
65f38f15 AM |
5561 | info = (struct bfd_link_info *) inf; |
5562 | htab = ppc_hash_table (info); | |
5bd4f169 | 5563 | |
65f38f15 | 5564 | if (htab->elf.dynamic_sections_created |
411e1bfb | 5565 | && h->dynindx != -1 |
9c7a29a3 | 5566 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 5567 | { |
411e1bfb AM |
5568 | struct plt_entry *pent; |
5569 | bfd_boolean doneone = FALSE; | |
5570 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
5571 | if (pent->plt.refcount > 0) | |
5572 | { | |
5573 | BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor); | |
5574 | ||
5575 | /* If this is the first .plt entry, make room for the special | |
5576 | first entry. */ | |
5577 | s = htab->splt; | |
5578 | if (s->_raw_size == 0) | |
5579 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
5580 | ||
5581 | pent->plt.offset = s->_raw_size; | |
5582 | ||
5583 | /* Make room for this entry. */ | |
5584 | s->_raw_size += PLT_ENTRY_SIZE; | |
5585 | ||
5586 | /* Make room for the .glink code. */ | |
5587 | s = htab->sglink; | |
5588 | if (s->_raw_size == 0) | |
5589 | s->_raw_size += GLINK_CALL_STUB_SIZE; | |
5590 | /* We need bigger stubs past index 32767. */ | |
5591 | if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
5592 | s->_raw_size += 4; | |
5593 | s->_raw_size += 2*4; | |
5594 | ||
5595 | /* We also need to make an entry in the .rela.plt section. */ | |
5596 | s = htab->srelplt; | |
5597 | s->_raw_size += sizeof (Elf64_External_Rela); | |
5598 | doneone = TRUE; | |
5599 | } | |
5600 | else | |
5601 | pent->plt.offset = (bfd_vma) -1; | |
5602 | if (!doneone) | |
65f38f15 | 5603 | { |
411e1bfb | 5604 | h->plt.plist = NULL; |
65f38f15 AM |
5605 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5606 | } | |
5607 | } | |
5608 | else | |
5609 | { | |
411e1bfb | 5610 | h->plt.plist = NULL; |
65f38f15 AM |
5611 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5612 | } | |
5613 | ||
951fd09b AM |
5614 | eh = (struct ppc_link_hash_entry *) h; |
5615 | /* Run through the TLS GD got entries first if we're changing them | |
5616 | to TPREL. */ | |
e7b938ca | 5617 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
5618 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5619 | if (gent->got.refcount > 0 | |
5620 | && (gent->tls_type & TLS_GD) != 0) | |
5621 | { | |
5622 | /* This was a GD entry that has been converted to TPREL. If | |
5623 | there happens to be a TPREL entry we can use that one. */ | |
5624 | struct got_entry *ent; | |
5625 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
5626 | if (ent->got.refcount > 0 | |
5627 | && (ent->tls_type & TLS_TPREL) != 0 | |
5628 | && ent->addend == gent->addend) | |
5629 | { | |
5630 | gent->got.refcount = 0; | |
5631 | break; | |
5632 | } | |
5633 | ||
5634 | /* If not, then we'll be using our own TPREL entry. */ | |
5635 | if (gent->got.refcount != 0) | |
5636 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
5637 | } | |
5638 | ||
411e1bfb AM |
5639 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5640 | if (gent->got.refcount > 0) | |
5641 | { | |
951fd09b AM |
5642 | bfd_boolean dyn; |
5643 | ||
411e1bfb | 5644 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
5645 | Undefined weak syms won't yet be marked as dynamic, |
5646 | nor will all TLS symbols. */ | |
411e1bfb AM |
5647 | if (h->dynindx == -1 |
5648 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5649 | { | |
5650 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
5651 | return FALSE; | |
5652 | } | |
65f38f15 | 5653 | |
d881513a AM |
5654 | if ((gent->tls_type & TLS_LD) != 0 |
5655 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5656 | { |
951fd09b AM |
5657 | gent->got.offset = htab->tlsld_got.offset; |
5658 | continue; | |
411e1bfb | 5659 | } |
951fd09b AM |
5660 | |
5661 | s = htab->sgot; | |
5662 | gent->got.offset = s->_raw_size; | |
d881513a AM |
5663 | s->_raw_size |
5664 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; | |
951fd09b | 5665 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
5666 | if ((info->shared |
5667 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
5668 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5669 | || h->root.type != bfd_link_hash_undefweak)) | |
951fd09b | 5670 | htab->srelgot->_raw_size |
e7b938ca | 5671 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
5672 | ? 2 * sizeof (Elf64_External_Rela) |
5673 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
5674 | } |
5675 | else | |
5676 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 5677 | |
65f38f15 | 5678 | if (eh->dyn_relocs == NULL) |
b34976b6 | 5679 | return TRUE; |
65f38f15 AM |
5680 | |
5681 | /* In the shared -Bsymbolic case, discard space allocated for | |
5682 | dynamic pc-relative relocs against symbols which turn out to be | |
5683 | defined in regular objects. For the normal shared case, discard | |
5684 | space for relocs that have become local due to symbol visibility | |
5685 | changes. */ | |
5686 | ||
5687 | if (info->shared) | |
5688 | { | |
9c7a29a3 AM |
5689 | /* Relocs that use pc_count are those that appear on a call insn, |
5690 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
5691 | generated via assembly. We want calls to protected symbols to | |
5692 | resolve directly to the function rather than going via the plt. | |
5693 | If people want function pointer comparisons to work as expected | |
5694 | then they should avoid writing weird assembly. */ | |
09695f56 | 5695 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
5696 | { |
5697 | struct ppc_dyn_relocs **pp; | |
5698 | ||
5699 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 5700 | { |
65f38f15 AM |
5701 | p->count -= p->pc_count; |
5702 | p->pc_count = 0; | |
5703 | if (p->count == 0) | |
5704 | *pp = p->next; | |
5705 | else | |
5706 | pp = &p->next; | |
5bd4f169 | 5707 | } |
65f38f15 | 5708 | } |
4e795f50 AM |
5709 | |
5710 | /* Also discard relocs on undefined weak syms with non-default | |
5711 | visibility. */ | |
5712 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5713 | && h->root.type == bfd_link_hash_undefweak) | |
5714 | eh->dyn_relocs = NULL; | |
65f38f15 | 5715 | } |
f4656909 | 5716 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
5717 | { |
5718 | /* For the non-shared case, discard space for relocs against | |
5719 | symbols which turn out to need copy relocs or are not | |
5720 | dynamic. */ | |
5721 | ||
5722 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
5723 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
5724 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
65f38f15 AM |
5725 | { |
5726 | /* Make sure this symbol is output as a dynamic symbol. | |
5727 | Undefined weak syms won't yet be marked as dynamic. */ | |
5728 | if (h->dynindx == -1 | |
5729 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5730 | { | |
ec338859 | 5731 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) |
b34976b6 | 5732 | return FALSE; |
65f38f15 AM |
5733 | } |
5734 | ||
5735 | /* If that succeeded, we know we'll be keeping all the | |
5736 | relocs. */ | |
5737 | if (h->dynindx != -1) | |
5738 | goto keep; | |
5739 | } | |
5740 | ||
5741 | eh->dyn_relocs = NULL; | |
5742 | ||
ec338859 | 5743 | keep: ; |
65f38f15 AM |
5744 | } |
5745 | ||
5746 | /* Finally, allocate space. */ | |
5747 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5748 | { | |
5749 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5750 | sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
5751 | } | |
5752 | ||
b34976b6 | 5753 | return TRUE; |
65f38f15 AM |
5754 | } |
5755 | ||
5756 | /* Find any dynamic relocs that apply to read-only sections. */ | |
5757 | ||
b34976b6 | 5758 | static bfd_boolean |
65f38f15 AM |
5759 | readonly_dynrelocs (h, inf) |
5760 | struct elf_link_hash_entry *h; | |
5761 | PTR inf; | |
5762 | { | |
5763 | struct ppc_link_hash_entry *eh; | |
5764 | struct ppc_dyn_relocs *p; | |
5765 | ||
e92d460e AM |
5766 | if (h->root.type == bfd_link_hash_warning) |
5767 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5768 | ||
65f38f15 AM |
5769 | eh = (struct ppc_link_hash_entry *) h; |
5770 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5771 | { | |
5772 | asection *s = p->sec->output_section; | |
5773 | ||
5774 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5775 | { | |
5776 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
5777 | ||
5778 | info->flags |= DF_TEXTREL; | |
5779 | ||
5780 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 5781 | return FALSE; |
65f38f15 AM |
5782 | } |
5783 | } | |
b34976b6 | 5784 | return TRUE; |
65f38f15 AM |
5785 | } |
5786 | ||
5787 | /* Set the sizes of the dynamic sections. */ | |
5788 | ||
b34976b6 | 5789 | static bfd_boolean |
65f38f15 AM |
5790 | ppc64_elf_size_dynamic_sections (output_bfd, info) |
5791 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
5792 | struct bfd_link_info *info; | |
5793 | { | |
5794 | struct ppc_link_hash_table *htab; | |
5795 | bfd *dynobj; | |
5796 | asection *s; | |
b34976b6 | 5797 | bfd_boolean relocs; |
65f38f15 AM |
5798 | bfd *ibfd; |
5799 | ||
5800 | htab = ppc_hash_table (info); | |
5801 | dynobj = htab->elf.dynobj; | |
5802 | if (dynobj == NULL) | |
5803 | abort (); | |
5804 | ||
5805 | if (htab->elf.dynamic_sections_created) | |
5806 | { | |
5807 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 5808 | if (info->executable) |
65f38f15 AM |
5809 | { |
5810 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5811 | if (s == NULL) | |
5812 | abort (); | |
5813 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5814 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5815 | } | |
5816 | } | |
5817 | ||
411e1bfb AM |
5818 | if (htab->tlsld_got.refcount > 0) |
5819 | { | |
5820 | htab->tlsld_got.offset = htab->sgot->_raw_size; | |
5821 | htab->sgot->_raw_size += 16; | |
5822 | if (info->shared) | |
5823 | htab->srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
5824 | } | |
5825 | else | |
5826 | htab->tlsld_got.offset = (bfd_vma) -1; | |
5827 | ||
65f38f15 AM |
5828 | /* Set up .got offsets for local syms, and space for local dynamic |
5829 | relocs. */ | |
5830 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5831 | { | |
411e1bfb AM |
5832 | struct got_entry **lgot_ents; |
5833 | struct got_entry **end_lgot_ents; | |
e7b938ca | 5834 | char *lgot_masks; |
65f38f15 AM |
5835 | bfd_size_type locsymcount; |
5836 | Elf_Internal_Shdr *symtab_hdr; | |
5837 | asection *srel; | |
5838 | ||
5839 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5840 | continue; | |
5841 | ||
5842 | for (s = ibfd->sections; s != NULL; s = s->next) | |
5843 | { | |
ec338859 | 5844 | struct ppc_dyn_relocs *p; |
65f38f15 | 5845 | |
ec338859 AM |
5846 | for (p = *((struct ppc_dyn_relocs **) |
5847 | &elf_section_data (s)->local_dynrel); | |
5848 | p != NULL; | |
5849 | p = p->next) | |
65f38f15 | 5850 | { |
ec338859 AM |
5851 | if (!bfd_is_abs_section (p->sec) |
5852 | && bfd_is_abs_section (p->sec->output_section)) | |
5853 | { | |
5854 | /* Input section has been discarded, either because | |
5855 | it is a copy of a linkonce section or due to | |
5856 | linker script /DISCARD/, so we'll be discarding | |
5857 | the relocs too. */ | |
5858 | } | |
248866a8 | 5859 | else if (p->count != 0) |
ec338859 AM |
5860 | { |
5861 | srel = elf_section_data (p->sec)->sreloc; | |
5862 | srel->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
248866a8 AM |
5863 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
5864 | info->flags |= DF_TEXTREL; | |
ec338859 | 5865 | } |
65f38f15 AM |
5866 | } |
5867 | } | |
5868 | ||
411e1bfb AM |
5869 | lgot_ents = elf_local_got_ents (ibfd); |
5870 | if (!lgot_ents) | |
65f38f15 AM |
5871 | continue; |
5872 | ||
5873 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5874 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 5875 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 5876 | lgot_masks = (char *) end_lgot_ents; |
65f38f15 AM |
5877 | s = htab->sgot; |
5878 | srel = htab->srelgot; | |
e7b938ca | 5879 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 5880 | { |
411e1bfb AM |
5881 | struct got_entry *ent; |
5882 | ||
5883 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
5884 | if (ent->got.refcount > 0) | |
5885 | { | |
e7b938ca | 5886 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb AM |
5887 | { |
5888 | if (htab->tlsld_got.offset == (bfd_vma) -1) | |
5889 | { | |
5890 | htab->tlsld_got.offset = s->_raw_size; | |
5891 | s->_raw_size += 16; | |
5892 | if (info->shared) | |
5893 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5894 | } | |
5895 | ent->got.offset = htab->tlsld_got.offset; | |
5896 | } | |
5897 | else | |
5898 | { | |
5899 | ent->got.offset = s->_raw_size; | |
e7b938ca | 5900 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb AM |
5901 | { |
5902 | s->_raw_size += 16; | |
5903 | if (info->shared) | |
5904 | srel->_raw_size += 2 * sizeof (Elf64_External_Rela); | |
5905 | } | |
5906 | else | |
5907 | { | |
5908 | s->_raw_size += 8; | |
5909 | if (info->shared) | |
5910 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5911 | } | |
5912 | } | |
5913 | } | |
5914 | else | |
5915 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
5916 | } |
5917 | } | |
5918 | ||
5919 | /* Allocate global sym .plt and .got entries, and space for global | |
5920 | sym dynamic relocs. */ | |
5921 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
5922 | ||
5923 | /* We now have determined the sizes of the various dynamic sections. | |
5924 | Allocate memory for them. */ | |
b34976b6 | 5925 | relocs = FALSE; |
65f38f15 AM |
5926 | for (s = dynobj->sections; s != NULL; s = s->next) |
5927 | { | |
5928 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5929 | continue; | |
5930 | ||
411e1bfb AM |
5931 | /* Reset _cooked_size since prelim layout will set it wrongly, |
5932 | and a non-zero _cooked_size sticks. */ | |
5933 | s->_cooked_size = 0; | |
5934 | ||
721956f4 AM |
5935 | if (s == htab->sbrlt || s == htab->srelbrlt) |
5936 | /* These haven't been allocated yet; don't strip. */ | |
5937 | continue; | |
ad8e1ba5 AM |
5938 | else if (s == htab->sgot) |
5939 | { | |
5940 | /* Automatic multiple tocs aren't possible if we are using the | |
5941 | GOT. The GOT is accessed via r2, so we can't adjust r2. | |
5942 | FIXME: There's no reason why we couldn't lay out multiple | |
5943 | GOTs too. */ | |
5944 | if (s->_raw_size > elf_backend_got_header_size) | |
5945 | htab->no_multi_toc = 1; | |
5946 | } | |
721956f4 | 5947 | else if (s == htab->splt |
721956f4 | 5948 | || s == htab->sglink) |
65f38f15 AM |
5949 | { |
5950 | /* Strip this section if we don't need it; see the | |
5951 | comment below. */ | |
5bd4f169 | 5952 | } |
65f38f15 | 5953 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 AM |
5954 | { |
5955 | if (s->_raw_size == 0) | |
5956 | { | |
5957 | /* If we don't need this section, strip it from the | |
5958 | output file. This is mostly to handle .rela.bss and | |
5959 | .rela.plt. We must create both sections in | |
5960 | create_dynamic_sections, because they must be created | |
5961 | before the linker maps input sections to output | |
5962 | sections. The linker does that before | |
5963 | adjust_dynamic_symbol is called, and it is that | |
5964 | function which decides whether anything needs to go | |
5965 | into these sections. */ | |
5bd4f169 AM |
5966 | } |
5967 | else | |
5968 | { | |
65f38f15 | 5969 | if (s != htab->srelplt) |
b34976b6 | 5970 | relocs = TRUE; |
5bd4f169 AM |
5971 | |
5972 | /* We use the reloc_count field as a counter if we need | |
5973 | to copy relocs into the output file. */ | |
5974 | s->reloc_count = 0; | |
5975 | } | |
5976 | } | |
65f38f15 | 5977 | else |
5bd4f169 AM |
5978 | { |
5979 | /* It's not one of our sections, so don't allocate space. */ | |
5980 | continue; | |
5981 | } | |
5982 | ||
65f38f15 | 5983 | if (s->_raw_size == 0) |
5bd4f169 AM |
5984 | { |
5985 | _bfd_strip_section_from_output (info, s); | |
5986 | continue; | |
5987 | } | |
5988 | ||
5f333394 AM |
5989 | /* .plt is in the bss section. We don't initialise it. */ |
5990 | if ((s->flags & SEC_LOAD) == 0) | |
5991 | continue; | |
5992 | ||
65f38f15 AM |
5993 | /* Allocate memory for the section contents. We use bfd_zalloc |
5994 | here in case unused entries are not reclaimed before the | |
5995 | section's contents are written out. This should not happen, | |
411e1bfb AM |
5996 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
5997 | sections instead of garbage. | |
5998 | We also rely on the section contents being zero when writing | |
5999 | the GOT. */ | |
721956f4 | 6000 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); |
65f38f15 | 6001 | if (s->contents == NULL) |
b34976b6 | 6002 | return FALSE; |
5bd4f169 AM |
6003 | } |
6004 | ||
e86ce104 | 6005 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
6006 | { |
6007 | /* Add some entries to the .dynamic section. We fill in the | |
6008 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
6009 | must add the entries now so that we get the correct size for | |
6010 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6011 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
6012 | #define add_dynamic_entry(TAG, VAL) \ |
6013 | bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
6014 | ||
36af4a4e | 6015 | if (info->executable) |
5bd4f169 | 6016 | { |
dc810e39 | 6017 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 6018 | return FALSE; |
5bd4f169 AM |
6019 | } |
6020 | ||
9c07fe7c | 6021 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
5bd4f169 | 6022 | { |
dc810e39 AM |
6023 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6024 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6025 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
6026 | || !add_dynamic_entry (DT_JMPREL, 0) |
6027 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 6028 | return FALSE; |
5bd4f169 AM |
6029 | } |
6030 | ||
19397422 AM |
6031 | if (NO_OPD_RELOCS) |
6032 | { | |
6033 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
6034 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 6035 | return FALSE; |
19397422 AM |
6036 | } |
6037 | ||
5bd4f169 AM |
6038 | if (relocs) |
6039 | { | |
dc810e39 AM |
6040 | if (!add_dynamic_entry (DT_RELA, 0) |
6041 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6042 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 6043 | return FALSE; |
5bd4f169 | 6044 | |
65f38f15 AM |
6045 | /* If any dynamic relocs apply to a read-only section, |
6046 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
6047 | if ((info->flags & DF_TEXTREL) == 0) |
6048 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
6049 | (PTR) info); | |
5bd4f169 | 6050 | |
65f38f15 | 6051 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 6052 | { |
65f38f15 | 6053 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 6054 | return FALSE; |
5bd4f169 | 6055 | } |
5bd4f169 | 6056 | } |
5bd4f169 | 6057 | } |
65f38f15 | 6058 | #undef add_dynamic_entry |
5bd4f169 | 6059 | |
b34976b6 | 6060 | return TRUE; |
5bd4f169 AM |
6061 | } |
6062 | ||
721956f4 | 6063 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 6064 | |
721956f4 AM |
6065 | static INLINE enum ppc_stub_type |
6066 | ppc_type_of_stub (input_sec, rel, hash, destination) | |
6067 | asection *input_sec; | |
6068 | const Elf_Internal_Rela *rel; | |
6069 | struct ppc_link_hash_entry **hash; | |
6070 | bfd_vma destination; | |
5bd4f169 | 6071 | { |
721956f4 AM |
6072 | struct ppc_link_hash_entry *h = *hash; |
6073 | bfd_vma location; | |
6074 | bfd_vma branch_offset; | |
6075 | bfd_vma max_branch_offset; | |
6076 | unsigned int r_type; | |
5bd4f169 | 6077 | |
721956f4 AM |
6078 | if (h != NULL) |
6079 | { | |
6080 | if (h->oh != NULL | |
721956f4 | 6081 | && h->oh->dynindx != -1) |
5bd4f169 | 6082 | { |
411e1bfb AM |
6083 | struct plt_entry *ent; |
6084 | for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next) | |
6085 | if (ent->addend == rel->r_addend | |
6086 | && ent->plt.offset != (bfd_vma) -1) | |
6087 | { | |
6088 | *hash = (struct ppc_link_hash_entry *) h->oh; | |
6089 | return ppc_stub_plt_call; | |
6090 | } | |
5bd4f169 AM |
6091 | } |
6092 | ||
ad8e1ba5 AM |
6093 | if (h->elf.root.type != bfd_link_hash_defined |
6094 | && h->elf.root.type != bfd_link_hash_defweak) | |
721956f4 | 6095 | return ppc_stub_none; |
5d1634d7 | 6096 | } |
5d1634d7 | 6097 | |
721956f4 AM |
6098 | /* Determine where the call point is. */ |
6099 | location = (input_sec->output_offset | |
6100 | + input_sec->output_section->vma | |
6101 | + rel->r_offset); | |
5d1634d7 | 6102 | |
721956f4 AM |
6103 | branch_offset = destination - location; |
6104 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 6105 | |
721956f4 AM |
6106 | /* Determine if a long branch stub is needed. */ |
6107 | max_branch_offset = 1 << 25; | |
6108 | if (r_type != (unsigned int) R_PPC64_REL24) | |
6109 | max_branch_offset = 1 << 15; | |
5d1634d7 | 6110 | |
721956f4 AM |
6111 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
6112 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
6113 | is needed later. */ | |
6114 | return ppc_stub_long_branch; | |
5d1634d7 | 6115 | |
721956f4 | 6116 | return ppc_stub_none; |
5d1634d7 AM |
6117 | } |
6118 | ||
6119 | /* Build a .plt call stub. */ | |
6120 | ||
6121 | static bfd_byte * | |
ad8e1ba5 | 6122 | build_plt_stub (obfd, p, offset) |
5d1634d7 AM |
6123 | bfd *obfd; |
6124 | bfd_byte *p; | |
6125 | int offset; | |
5d1634d7 AM |
6126 | { |
6127 | #define PPC_LO(v) ((v) & 0xffff) | |
6128 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
6129 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
6130 | ||
5d1634d7 | 6131 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 6132 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
6133 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
6134 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6135 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6136 | offset += 8; |
6137 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
6138 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 6139 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
6140 | offset += 8; |
6141 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
6142 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
6143 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
6144 | return p; | |
6145 | } | |
6146 | ||
b34976b6 | 6147 | static bfd_boolean |
721956f4 AM |
6148 | ppc_build_one_stub (gen_entry, in_arg) |
6149 | struct bfd_hash_entry *gen_entry; | |
6150 | PTR in_arg; | |
5d1634d7 | 6151 | { |
721956f4 AM |
6152 | struct ppc_stub_hash_entry *stub_entry; |
6153 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
6154 | struct bfd_link_info *info; |
6155 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
6156 | asection *stub_sec; |
6157 | bfd *stub_bfd; | |
6158 | bfd_byte *loc; | |
6159 | bfd_byte *p; | |
6160 | unsigned int indx; | |
411e1bfb | 6161 | struct plt_entry *ent; |
721956f4 AM |
6162 | bfd_vma off; |
6163 | int size; | |
5d1634d7 | 6164 | |
721956f4 AM |
6165 | /* Massage our args to the form they really have. */ |
6166 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
6167 | info = (struct bfd_link_info *) in_arg; | |
5d1634d7 | 6168 | |
5d1634d7 | 6169 | htab = ppc_hash_table (info); |
721956f4 | 6170 | stub_sec = stub_entry->stub_sec; |
5d1634d7 | 6171 | |
721956f4 AM |
6172 | /* Make a note of the offset within the stubs for this entry. */ |
6173 | stub_entry->stub_offset = stub_sec->_cooked_size; | |
6174 | loc = stub_sec->contents + stub_entry->stub_offset; | |
6175 | ||
ad8e1ba5 AM |
6176 | if (htab->emit_stub_syms) |
6177 | { | |
6178 | struct elf_link_hash_entry *h; | |
6179 | h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string, | |
6180 | TRUE, FALSE, FALSE); | |
6181 | if (h == NULL) | |
6182 | return FALSE; | |
6183 | h->root.type = bfd_link_hash_defined; | |
6184 | h->root.u.def.section = stub_entry->stub_sec; | |
6185 | h->root.u.def.value = stub_entry->stub_offset; | |
6186 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
6187 | | ELF_LINK_HASH_DEF_REGULAR | |
6188 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
6189 | | ELF_LINK_FORCED_LOCAL); | |
6190 | } | |
6191 | ||
721956f4 AM |
6192 | stub_bfd = stub_sec->owner; |
6193 | ||
9b5ecbd0 | 6194 | htab->stub_count[(int) stub_entry->stub_type - 1] += 1; |
721956f4 | 6195 | switch (stub_entry->stub_type) |
5d1634d7 | 6196 | { |
721956f4 | 6197 | case ppc_stub_long_branch: |
ad8e1ba5 | 6198 | case ppc_stub_long_branch_r2off: |
721956f4 AM |
6199 | /* Branches are relative. This is where we are going to. */ |
6200 | off = (stub_entry->target_value | |
6201 | + stub_entry->target_section->output_offset | |
6202 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 6203 | |
721956f4 AM |
6204 | /* And this is where we are coming from. */ |
6205 | off -= (stub_entry->stub_offset | |
6206 | + stub_sec->output_offset | |
6207 | + stub_sec->output_section->vma); | |
e86ce104 | 6208 | |
ad8e1ba5 AM |
6209 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
6210 | size = 4; | |
6211 | else | |
6212 | { | |
6213 | bfd_vma r2off; | |
6214 | ||
6215 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6216 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
6217 | bfd_put_32 (stub_bfd, (bfd_vma) STD_R2_40R1, loc); | |
6218 | loc += 4; | |
6219 | bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
6220 | loc += 4; | |
6221 | bfd_put_32 (stub_bfd, (bfd_vma) ADDI_R2_R2 | PPC_LO (r2off), loc); | |
6222 | loc += 4; | |
6223 | off -= 12; | |
6224 | size = 16; | |
6225 | } | |
721956f4 | 6226 | bfd_put_32 (stub_bfd, (bfd_vma) B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 AM |
6227 | |
6228 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); | |
721956f4 | 6229 | break; |
e86ce104 | 6230 | |
721956f4 | 6231 | case ppc_stub_plt_branch: |
ad8e1ba5 | 6232 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
6233 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
6234 | stub_entry->root.string + 9, | |
b34976b6 | 6235 | FALSE, FALSE); |
721956f4 AM |
6236 | if (br_entry == NULL) |
6237 | { | |
6238 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
6239 | stub_entry->root.string + 9); | |
b34976b6 AM |
6240 | htab->stub_error = TRUE; |
6241 | return FALSE; | |
721956f4 AM |
6242 | } |
6243 | ||
6244 | off = (stub_entry->target_value | |
6245 | + stub_entry->target_section->output_offset | |
6246 | + stub_entry->target_section->output_section->vma); | |
6247 | ||
6248 | bfd_put_64 (htab->sbrlt->owner, off, | |
6249 | htab->sbrlt->contents + br_entry->offset); | |
6250 | ||
6251 | if (info->shared) | |
6252 | { | |
6253 | /* Create a reloc for the branch lookup table entry. */ | |
6254 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 6255 | bfd_byte *rl; |
5d1634d7 | 6256 | |
721956f4 AM |
6257 | rela.r_offset = (br_entry->offset |
6258 | + htab->sbrlt->output_offset | |
6259 | + htab->sbrlt->output_section->vma); | |
6260 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
6261 | rela.r_addend = off; | |
6262 | ||
ad8e1ba5 AM |
6263 | rl = htab->srelbrlt->contents; |
6264 | rl += htab->srelbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
6265 | bfd_elf64_swap_reloca_out (htab->srelbrlt->owner, &rela, rl); | |
721956f4 AM |
6266 | } |
6267 | ||
6268 | off = (br_entry->offset | |
6269 | + htab->sbrlt->output_offset | |
6270 | + htab->sbrlt->output_section->vma | |
6271 | - elf_gp (htab->sbrlt->output_section->owner) | |
ad8e1ba5 | 6272 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6273 | |
ad8e1ba5 | 6274 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
6275 | { |
6276 | (*_bfd_error_handler) | |
e86ce104 | 6277 | (_("linkage table error against `%s'"), |
721956f4 | 6278 | stub_entry->root.string); |
5d1634d7 | 6279 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
6280 | htab->stub_error = TRUE; |
6281 | return FALSE; | |
5d1634d7 | 6282 | } |
41bd81ab | 6283 | |
721956f4 | 6284 | indx = off; |
ad8e1ba5 AM |
6285 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
6286 | { | |
6287 | bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R12_R2 | PPC_HA (indx), loc); | |
6288 | loc += 4; | |
6289 | bfd_put_32 (stub_bfd, (bfd_vma) LD_R11_0R12 | PPC_LO (indx), loc); | |
6290 | size = 16; | |
6291 | } | |
6292 | else | |
6293 | { | |
6294 | bfd_vma r2off; | |
6295 | ||
6296 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6297 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
6298 | bfd_put_32 (stub_bfd, (bfd_vma) STD_R2_40R1, loc); | |
6299 | loc += 4; | |
6300 | bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R12_R2 | PPC_HA (indx), loc); | |
6301 | loc += 4; | |
6302 | bfd_put_32 (stub_bfd, (bfd_vma) LD_R11_0R12 | PPC_LO (indx), loc); | |
6303 | loc += 4; | |
6304 | bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
6305 | loc += 4; | |
6306 | bfd_put_32 (stub_bfd, (bfd_vma) ADDI_R2_R2 | PPC_LO (r2off), loc); | |
6307 | size = 28; | |
6308 | } | |
6309 | loc += 4; | |
6310 | bfd_put_32 (stub_bfd, (bfd_vma) MTCTR_R11, loc); | |
6311 | loc += 4; | |
6312 | bfd_put_32 (stub_bfd, (bfd_vma) BCTR, loc); | |
721956f4 | 6313 | break; |
5d1634d7 | 6314 | |
721956f4 | 6315 | case ppc_stub_plt_call: |
c862ae31 AM |
6316 | /* Do the best we can for shared libraries built without |
6317 | exporting ".foo" for each "foo". This can happen when symbol | |
6318 | versioning scripts strip all bar a subset of symbols. */ | |
6319 | if (stub_entry->h->oh->root.type != bfd_link_hash_defined | |
6320 | && stub_entry->h->oh->root.type != bfd_link_hash_defweak) | |
6321 | { | |
6322 | /* Point the symbol at the stub. There may be multiple stubs, | |
6323 | we don't really care; The main thing is to make this sym | |
6324 | defined somewhere. */ | |
6325 | stub_entry->h->oh->root.type = bfd_link_hash_defined; | |
6326 | stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec; | |
6327 | stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset; | |
6328 | } | |
6329 | ||
721956f4 | 6330 | /* Now build the stub. */ |
411e1bfb AM |
6331 | off = (bfd_vma) -1; |
6332 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
6333 | if (ent->addend == stub_entry->addend) | |
6334 | { | |
6335 | off = ent->plt.offset; | |
6336 | break; | |
6337 | } | |
721956f4 AM |
6338 | if (off >= (bfd_vma) -2) |
6339 | abort (); | |
6340 | ||
6341 | off &= ~ (bfd_vma) 1; | |
6342 | off += (htab->splt->output_offset | |
6343 | + htab->splt->output_section->vma | |
6344 | - elf_gp (htab->splt->output_section->owner) | |
ad8e1ba5 | 6345 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6346 | |
ad8e1ba5 | 6347 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
6348 | { |
6349 | (*_bfd_error_handler) | |
6350 | (_("linkage table error against `%s'"), | |
6351 | stub_entry->h->elf.root.root.string); | |
6352 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
6353 | htab->stub_error = TRUE; |
6354 | return FALSE; | |
721956f4 AM |
6355 | } |
6356 | ||
ad8e1ba5 | 6357 | p = build_plt_stub (stub_bfd, loc, (int) off); |
721956f4 AM |
6358 | size = p - loc; |
6359 | break; | |
6360 | ||
6361 | default: | |
6362 | BFD_FAIL (); | |
b34976b6 | 6363 | return FALSE; |
721956f4 AM |
6364 | } |
6365 | ||
6366 | stub_sec->_cooked_size += size; | |
b34976b6 | 6367 | return TRUE; |
721956f4 AM |
6368 | } |
6369 | ||
6370 | /* As above, but don't actually build the stub. Just bump offset so | |
6371 | we know stub section sizes, and select plt_branch stubs where | |
6372 | long_branch stubs won't do. */ | |
6373 | ||
b34976b6 | 6374 | static bfd_boolean |
721956f4 AM |
6375 | ppc_size_one_stub (gen_entry, in_arg) |
6376 | struct bfd_hash_entry *gen_entry; | |
6377 | PTR in_arg; | |
6378 | { | |
6379 | struct ppc_stub_hash_entry *stub_entry; | |
6380 | struct ppc_link_hash_table *htab; | |
6381 | bfd_vma off; | |
6382 | int size; | |
6383 | ||
6384 | /* Massage our args to the form they really have. */ | |
6385 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
6386 | htab = (struct ppc_link_hash_table *) in_arg; | |
6387 | ||
6388 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
6389 | { | |
411e1bfb | 6390 | struct plt_entry *ent; |
58ac9f71 | 6391 | off = (bfd_vma) -1; |
411e1bfb AM |
6392 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
6393 | if (ent->addend == stub_entry->addend) | |
6394 | { | |
6395 | off = ent->plt.offset & ~(bfd_vma) 1; | |
6396 | break; | |
6397 | } | |
58ac9f71 | 6398 | if (off >= (bfd_vma) -2) |
411e1bfb | 6399 | abort (); |
721956f4 AM |
6400 | off += (htab->splt->output_offset |
6401 | + htab->splt->output_section->vma | |
6402 | - elf_gp (htab->splt->output_section->owner) | |
ad8e1ba5 | 6403 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6404 | |
ad8e1ba5 | 6405 | size = PLT_CALL_STUB_SIZE; |
721956f4 AM |
6406 | if (PPC_HA ((int) off + 16) != PPC_HA ((int) off)) |
6407 | size += 4; | |
6408 | } | |
6409 | else | |
6410 | { | |
ad8e1ba5 AM |
6411 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
6412 | variants. */ | |
721956f4 AM |
6413 | off = (stub_entry->target_value |
6414 | + stub_entry->target_section->output_offset | |
6415 | + stub_entry->target_section->output_section->vma); | |
6416 | off -= (stub_entry->stub_sec->_raw_size | |
6417 | + stub_entry->stub_sec->output_offset | |
6418 | + stub_entry->stub_sec->output_section->vma); | |
6419 | ||
ad8e1ba5 AM |
6420 | /* Reset the stub type from the plt variant in case we now |
6421 | can reach with a shorter stub. */ | |
6422 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
6423 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
6424 | ||
6425 | size = 4; | |
6426 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
6427 | { | |
6428 | off -= 12; | |
6429 | size = 16; | |
6430 | } | |
6431 | ||
6432 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
6433 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
6434 | { | |
6435 | struct ppc_branch_hash_entry *br_entry; | |
6436 | ||
6437 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6438 | stub_entry->root.string + 9, | |
b34976b6 | 6439 | TRUE, FALSE); |
721956f4 AM |
6440 | if (br_entry == NULL) |
6441 | { | |
6442 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
6443 | stub_entry->root.string + 9); | |
b34976b6 AM |
6444 | htab->stub_error = TRUE; |
6445 | return FALSE; | |
721956f4 AM |
6446 | } |
6447 | ||
6448 | if (br_entry->iter != htab->stub_iteration) | |
6449 | { | |
6450 | br_entry->iter = htab->stub_iteration; | |
6451 | br_entry->offset = htab->sbrlt->_raw_size; | |
6452 | htab->sbrlt->_raw_size += 8; | |
6453 | } | |
ad8e1ba5 AM |
6454 | |
6455 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 6456 | size = 16; |
ad8e1ba5 AM |
6457 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
6458 | size = 28; | |
721956f4 AM |
6459 | } |
6460 | } | |
6461 | ||
6462 | stub_entry->stub_sec->_raw_size += size; | |
b34976b6 | 6463 | return TRUE; |
721956f4 AM |
6464 | } |
6465 | ||
6466 | /* Set up various things so that we can make a list of input sections | |
6467 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 6468 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
6469 | |
6470 | int | |
6471 | ppc64_elf_setup_section_lists (output_bfd, info) | |
6472 | bfd *output_bfd; | |
6473 | struct bfd_link_info *info; | |
6474 | { | |
6475 | bfd *input_bfd; | |
734b6cf9 | 6476 | int top_id, top_index, id; |
721956f4 | 6477 | asection *section; |
734b6cf9 | 6478 | asection **input_list; |
721956f4 AM |
6479 | bfd_size_type amt; |
6480 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6481 | ||
ad8e1ba5 | 6482 | if (htab->sbrlt == NULL) |
721956f4 AM |
6483 | return 0; |
6484 | ||
1e2f5b6e | 6485 | /* Find the top input section id. */ |
3d6f9012 | 6486 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
6487 | input_bfd != NULL; |
6488 | input_bfd = input_bfd->link_next) | |
6489 | { | |
721956f4 AM |
6490 | for (section = input_bfd->sections; |
6491 | section != NULL; | |
6492 | section = section->next) | |
6493 | { | |
6494 | if (top_id < section->id) | |
6495 | top_id = section->id; | |
6496 | } | |
6497 | } | |
721956f4 AM |
6498 | |
6499 | amt = sizeof (struct map_stub) * (top_id + 1); | |
6500 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); | |
6501 | if (htab->stub_group == NULL) | |
6502 | return -1; | |
6503 | ||
3d6f9012 AM |
6504 | /* Set toc_off for com, und, abs and ind sections. */ |
6505 | for (id = 0; id < 3; id++) | |
6506 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 6507 | |
3d6f9012 | 6508 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
6509 | |
6510 | /* We can't use output_bfd->section_count here to find the top output | |
6511 | section index as some sections may have been removed, and | |
6512 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
6513 | for (section = output_bfd->sections, top_index = 0; | |
6514 | section != NULL; | |
6515 | section = section->next) | |
6516 | { | |
6517 | if (top_index < section->index) | |
6518 | top_index = section->index; | |
6519 | } | |
6520 | ||
6521 | htab->top_index = top_index; | |
6522 | amt = sizeof (asection *) * (top_index + 1); | |
6523 | input_list = (asection **) bfd_zmalloc (amt); | |
6524 | htab->input_list = input_list; | |
6525 | if (input_list == NULL) | |
6526 | return -1; | |
6527 | ||
721956f4 AM |
6528 | return 1; |
6529 | } | |
6530 | ||
ad8e1ba5 AM |
6531 | /* The linker repeatedly calls this function for each toc input |
6532 | section. Group input bfds such that the toc within a group | |
6533 | is less than 64k in size. Will break with cute linker scripts | |
6534 | that play games with dot in the output toc section. */ | |
6535 | ||
6536 | void | |
6537 | ppc64_elf_next_toc_section (info, isec) | |
6538 | struct bfd_link_info *info; | |
6539 | asection *isec; | |
6540 | { | |
6541 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6542 | ||
6543 | if (!htab->no_multi_toc) | |
6544 | { | |
6545 | bfd_vma addr = isec->output_offset + isec->output_section->vma; | |
6546 | bfd_vma off = addr - htab->toc_curr; | |
6547 | if (off + isec->_raw_size > 0x10000) | |
6548 | { | |
6549 | htab->toc_curr = addr; | |
6550 | htab->multi_toc_needed = 1; | |
6551 | } | |
6552 | elf_gp (isec->owner) = (htab->toc_curr | |
6553 | - elf_gp (isec->output_section->owner) | |
6554 | + TOC_BASE_OFF); | |
6555 | } | |
6556 | } | |
6557 | ||
6558 | /* Called after the last call to the above function. */ | |
6559 | ||
6560 | void | |
6561 | ppc64_elf_reinit_toc (output_bfd, info) | |
6562 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
6563 | struct bfd_link_info *info; | |
6564 | { | |
6565 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 AM |
6566 | |
6567 | /* toc_curr tracks the TOC offset used for code sections below in | |
6568 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 6569 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
6570 | } |
6571 | ||
9b5ecbd0 AM |
6572 | /* No toc references were found in ISEC. If the code in ISEC makes no |
6573 | calls, then there's no need to use toc adjusting stubs when branching | |
6574 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
6575 | load r2. */ | |
6576 | ||
6577 | static int | |
6578 | toc_adjusting_stub_needed (info, isec) | |
6579 | struct bfd_link_info *info; | |
6580 | asection *isec; | |
6581 | { | |
6582 | bfd_byte *contents; | |
6583 | bfd_size_type i; | |
6584 | int ret; | |
6585 | int branch_ok; | |
6586 | ||
6587 | /* Hack for linux kernel. .fixup contains branches, but only back to | |
6588 | the function that hit an exception. */ | |
6589 | branch_ok = strcmp (isec->name, ".fixup") == 0; | |
6590 | ||
6591 | contents = elf_section_data (isec)->this_hdr.contents; | |
6592 | if (contents == NULL) | |
6593 | { | |
6594 | contents = bfd_malloc (isec->_raw_size); | |
6595 | if (contents == NULL) | |
6596 | return -1; | |
6597 | if (! bfd_get_section_contents (isec->owner, isec, contents, | |
6598 | (file_ptr) 0, isec->_raw_size)) | |
6599 | { | |
6600 | free (contents); | |
6601 | return -1; | |
6602 | } | |
6603 | if (info->keep_memory) | |
6604 | elf_section_data (isec)->this_hdr.contents = contents; | |
6605 | } | |
6606 | ||
6607 | /* Code scan, because we don't necessarily have relocs on calls to | |
6608 | static functions. */ | |
6609 | ret = 0; | |
6610 | for (i = 0; i < isec->_raw_size; i += 4) | |
6611 | { | |
6612 | unsigned long insn = bfd_get_32 (isec->owner, contents + i); | |
6613 | /* Is this a branch? */ | |
6614 | if ((insn & (0x1f << 26)) == (18 << 26) | |
6615 | /* If branch and link, it's a function call. */ | |
6616 | && ((insn & 1) != 0 | |
6617 | /* Sibling calls use a plain branch. I don't know a way | |
6618 | of deciding whether a branch is really a sibling call. */ | |
6619 | || !branch_ok)) | |
6620 | { | |
6621 | ret = 1; | |
6622 | break; | |
6623 | } | |
6624 | } | |
6625 | ||
6626 | if (elf_section_data (isec)->this_hdr.contents != contents) | |
6627 | free (contents); | |
6628 | return ret; | |
6629 | } | |
6630 | ||
721956f4 AM |
6631 | /* The linker repeatedly calls this function for each input section, |
6632 | in the order that input sections are linked into output sections. | |
6633 | Build lists of input sections to determine groupings between which | |
6634 | we may insert linker stubs. */ | |
6635 | ||
9b5ecbd0 | 6636 | bfd_boolean |
805fc799 | 6637 | ppc64_elf_next_input_section (info, isec) |
721956f4 AM |
6638 | struct bfd_link_info *info; |
6639 | asection *isec; | |
6640 | { | |
6641 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9b5ecbd0 | 6642 | int ret; |
721956f4 | 6643 | |
734b6cf9 AM |
6644 | if ((isec->output_section->flags & SEC_CODE) != 0 |
6645 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 6646 | { |
734b6cf9 | 6647 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 6648 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 6649 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
6650 | /* This happens to make the list in reverse order, |
6651 | which is what we want. */ | |
734b6cf9 AM |
6652 | PREV_SEC (isec) = *list; |
6653 | *list = isec; | |
721956f4 | 6654 | } |
ad8e1ba5 AM |
6655 | |
6656 | /* If a code section has a function that uses the TOC then we need | |
6657 | to use the right TOC (obviously). Also, make sure that .opd gets | |
6658 | the correct TOC value. */ | |
6659 | if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0) | |
9b5ecbd0 AM |
6660 | { |
6661 | if (elf_gp (isec->owner) != 0) | |
6662 | htab->toc_curr = elf_gp (isec->owner); | |
6663 | } | |
6664 | else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0) | |
6665 | return FALSE; | |
6666 | else | |
6667 | isec->has_gp_reloc = ret; | |
ad8e1ba5 AM |
6668 | |
6669 | /* Functions that don't use the TOC can belong in any TOC group. | |
6670 | Use the last TOC base. This happens to make _init and _fini | |
6671 | pasting work. */ | |
6672 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 6673 | return TRUE; |
721956f4 AM |
6674 | } |
6675 | ||
6676 | /* See whether we can group stub sections together. Grouping stub | |
6677 | sections may result in fewer stubs. More importantly, we need to | |
6678 | put all .init* and .fini* stubs at the beginning of the .init or | |
6679 | .fini output sections respectively, because glibc splits the | |
6680 | _init and _fini functions into multiple parts. Putting a stub in | |
6681 | the middle of a function is not a good idea. */ | |
6682 | ||
6683 | static void | |
6684 | group_sections (htab, stub_group_size, stubs_always_before_branch) | |
6685 | struct ppc_link_hash_table *htab; | |
6686 | bfd_size_type stub_group_size; | |
b34976b6 | 6687 | bfd_boolean stubs_always_before_branch; |
721956f4 | 6688 | { |
734b6cf9 AM |
6689 | asection **list = htab->input_list + htab->top_index; |
6690 | do | |
721956f4 | 6691 | { |
734b6cf9 AM |
6692 | asection *tail = *list; |
6693 | while (tail != NULL) | |
721956f4 | 6694 | { |
734b6cf9 AM |
6695 | asection *curr; |
6696 | asection *prev; | |
6697 | bfd_size_type total; | |
6698 | bfd_boolean big_sec; | |
6699 | bfd_vma curr_toc; | |
6700 | ||
6701 | curr = tail; | |
6702 | if (tail->_cooked_size) | |
6703 | total = tail->_cooked_size; | |
6704 | else | |
6705 | total = tail->_raw_size; | |
6706 | big_sec = total >= stub_group_size; | |
6707 | curr_toc = htab->stub_group[tail->id].toc_off; | |
6708 | ||
6709 | while ((prev = PREV_SEC (curr)) != NULL | |
6710 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
6711 | < stub_group_size) |
6712 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
6713 | curr = prev; |
6714 | ||
6715 | /* OK, the size from the start of CURR to the end is less | |
6716 | than stub_group_size and thus can be handled by one stub | |
6717 | section. (or the tail section is itself larger than | |
6718 | stub_group_size, in which case we may be toast.) We | |
6719 | should really be keeping track of the total size of stubs | |
6720 | added here, as stubs contribute to the final output | |
6721 | section size. That's a little tricky, and this way will | |
6722 | only break if stubs added make the total size more than | |
6723 | 2^25, ie. for the default stub_group_size, if stubs total | |
6724 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
6725 | do | |
721956f4 AM |
6726 | { |
6727 | prev = PREV_SEC (tail); | |
734b6cf9 | 6728 | /* Set up this stub group. */ |
721956f4 AM |
6729 | htab->stub_group[tail->id].link_sec = curr; |
6730 | } | |
734b6cf9 AM |
6731 | while (tail != curr && (tail = prev) != NULL); |
6732 | ||
6733 | /* But wait, there's more! Input sections up to stub_group_size | |
6734 | bytes before the stub section can be handled by it too. | |
6735 | Don't do this if we have a really large section after the | |
6736 | stubs, as adding more stubs increases the chance that | |
6737 | branches may not reach into the stub section. */ | |
6738 | if (!stubs_always_before_branch && !big_sec) | |
6739 | { | |
6740 | total = 0; | |
6741 | while (prev != NULL | |
6742 | && ((total += tail->output_offset - prev->output_offset) | |
6743 | < stub_group_size) | |
6744 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
6745 | { | |
6746 | tail = prev; | |
6747 | prev = PREV_SEC (tail); | |
6748 | htab->stub_group[tail->id].link_sec = curr; | |
6749 | } | |
6750 | } | |
6751 | tail = prev; | |
721956f4 AM |
6752 | } |
6753 | } | |
734b6cf9 AM |
6754 | while (list-- != htab->input_list); |
6755 | free (htab->input_list); | |
721956f4 AM |
6756 | #undef PREV_SEC |
6757 | } | |
6758 | ||
721956f4 AM |
6759 | /* Determine and set the size of the stub section for a final link. |
6760 | ||
6761 | The basic idea here is to examine all the relocations looking for | |
6762 | PC-relative calls to a target that is unreachable with a "bl" | |
6763 | instruction. */ | |
6764 | ||
b34976b6 | 6765 | bfd_boolean |
721956f4 AM |
6766 | ppc64_elf_size_stubs (output_bfd, stub_bfd, info, group_size, |
6767 | add_stub_section, layout_sections_again) | |
6768 | bfd *output_bfd; | |
6769 | bfd *stub_bfd; | |
6770 | struct bfd_link_info *info; | |
6771 | bfd_signed_vma group_size; | |
6772 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
6773 | void (*layout_sections_again) PARAMS ((void)); | |
6774 | { | |
6775 | bfd_size_type stub_group_size; | |
b34976b6 | 6776 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6777 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
6778 | ||
6779 | /* Stash our params away. */ | |
6780 | htab->stub_bfd = stub_bfd; | |
6781 | htab->add_stub_section = add_stub_section; | |
6782 | htab->layout_sections_again = layout_sections_again; | |
6783 | stubs_always_before_branch = group_size < 0; | |
6784 | if (group_size < 0) | |
6785 | stub_group_size = -group_size; | |
6786 | else | |
6787 | stub_group_size = group_size; | |
6788 | if (stub_group_size == 1) | |
6789 | { | |
6790 | /* Default values. */ | |
58ac9f71 AM |
6791 | if (stubs_always_before_branch) |
6792 | { | |
6793 | stub_group_size = 0x1e00000; | |
6794 | if (htab->has_14bit_branch) | |
6795 | stub_group_size = 0x7800; | |
6796 | } | |
6797 | else | |
6798 | { | |
6799 | stub_group_size = 0x1c00000; | |
6800 | if (htab->has_14bit_branch) | |
6801 | stub_group_size = 0x7000; | |
6802 | } | |
721956f4 AM |
6803 | } |
6804 | ||
6805 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
6806 | ||
721956f4 AM |
6807 | while (1) |
6808 | { | |
6809 | bfd *input_bfd; | |
6810 | unsigned int bfd_indx; | |
6811 | asection *stub_sec; | |
b34976b6 | 6812 | bfd_boolean stub_changed; |
721956f4 AM |
6813 | |
6814 | htab->stub_iteration += 1; | |
b34976b6 | 6815 | stub_changed = FALSE; |
721956f4 AM |
6816 | |
6817 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
6818 | input_bfd != NULL; | |
6819 | input_bfd = input_bfd->link_next, bfd_indx++) | |
6820 | { | |
6821 | Elf_Internal_Shdr *symtab_hdr; | |
6822 | asection *section; | |
6cdc0ccc | 6823 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
6824 | |
6825 | /* We'll need the symbol table in a second. */ | |
6826 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6827 | if (symtab_hdr->sh_info == 0) | |
6828 | continue; | |
6829 | ||
721956f4 AM |
6830 | /* Walk over each section attached to the input bfd. */ |
6831 | for (section = input_bfd->sections; | |
6832 | section != NULL; | |
6833 | section = section->next) | |
6834 | { | |
721956f4 | 6835 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
6836 | |
6837 | /* If there aren't any relocs, then there's nothing more | |
6838 | to do. */ | |
6839 | if ((section->flags & SEC_RELOC) == 0 | |
6840 | || section->reloc_count == 0) | |
6841 | continue; | |
6842 | ||
6843 | /* If this section is a link-once section that will be | |
6844 | discarded, then don't create any stubs. */ | |
6845 | if (section->output_section == NULL | |
6846 | || section->output_section->owner != output_bfd) | |
6847 | continue; | |
6848 | ||
1e2f5b6e AM |
6849 | /* Get the relocs. */ |
6850 | internal_relocs | |
45d6a902 AM |
6851 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, |
6852 | (Elf_Internal_Rela *) NULL, | |
6853 | info->keep_memory); | |
721956f4 | 6854 | if (internal_relocs == NULL) |
1e2f5b6e | 6855 | goto error_ret_free_local; |
721956f4 AM |
6856 | |
6857 | /* Now examine each relocation. */ | |
6858 | irela = internal_relocs; | |
6859 | irelaend = irela + section->reloc_count; | |
6860 | for (; irela < irelaend; irela++) | |
6861 | { | |
6862 | unsigned int r_type, r_indx; | |
6863 | enum ppc_stub_type stub_type; | |
6864 | struct ppc_stub_hash_entry *stub_entry; | |
6865 | asection *sym_sec; | |
6866 | bfd_vma sym_value; | |
6867 | bfd_vma destination; | |
6868 | struct ppc_link_hash_entry *hash; | |
411e1bfb AM |
6869 | struct elf_link_hash_entry *h; |
6870 | Elf_Internal_Sym *sym; | |
721956f4 AM |
6871 | char *stub_name; |
6872 | const asection *id_sec; | |
6873 | ||
6874 | r_type = ELF64_R_TYPE (irela->r_info); | |
6875 | r_indx = ELF64_R_SYM (irela->r_info); | |
6876 | ||
04c9666a | 6877 | if (r_type >= (unsigned int) R_PPC64_max) |
721956f4 AM |
6878 | { |
6879 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 6880 | goto error_ret_free_internal; |
721956f4 AM |
6881 | } |
6882 | ||
6883 | /* Only look for stubs on branch instructions. */ | |
6884 | if (r_type != (unsigned int) R_PPC64_REL24 | |
6885 | && r_type != (unsigned int) R_PPC64_REL14 | |
6886 | && r_type != (unsigned int) R_PPC64_REL14_BRTAKEN | |
6887 | && r_type != (unsigned int) R_PPC64_REL14_BRNTAKEN) | |
6888 | continue; | |
6889 | ||
6890 | /* Now determine the call target, its name, value, | |
6891 | section. */ | |
721956f4 | 6892 | destination = 0; |
411e1bfb AM |
6893 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6894 | r_indx, input_bfd)) | |
6895 | goto error_ret_free_internal; | |
6896 | hash = (struct ppc_link_hash_entry *) h; | |
6897 | ||
6898 | if (hash == NULL) | |
721956f4 AM |
6899 | { |
6900 | /* It's a local symbol. */ | |
411e1bfb | 6901 | sym_value = sym->st_value; |
721956f4 AM |
6902 | destination = (sym_value + irela->r_addend |
6903 | + sym_sec->output_offset | |
6904 | + sym_sec->output_section->vma); | |
6905 | } | |
6906 | else | |
6907 | { | |
6908 | /* It's an external symbol. */ | |
411e1bfb | 6909 | sym_value = 0; |
721956f4 AM |
6910 | if (hash->elf.root.type == bfd_link_hash_defined |
6911 | || hash->elf.root.type == bfd_link_hash_defweak) | |
6912 | { | |
721956f4 AM |
6913 | sym_value = hash->elf.root.u.def.value; |
6914 | if (sym_sec->output_section != NULL) | |
6915 | destination = (sym_value + irela->r_addend | |
6916 | + sym_sec->output_offset | |
6917 | + sym_sec->output_section->vma); | |
6918 | } | |
6919 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
6920 | ; | |
6921 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
6922 | ; | |
6923 | else | |
6924 | { | |
6925 | bfd_set_error (bfd_error_bad_value); | |
6926 | goto error_ret_free_internal; | |
6927 | } | |
6928 | } | |
6929 | ||
6930 | /* Determine what (if any) linker stub is needed. */ | |
6931 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
6932 | destination); | |
ad8e1ba5 AM |
6933 | |
6934 | if (stub_type != ppc_stub_plt_call) | |
6935 | { | |
6936 | /* Check whether we need a TOC adjusting stub. | |
6937 | Since the linker pastes together pieces from | |
6938 | different object files when creating the | |
6939 | _init and _fini functions, it may be that a | |
6940 | call to what looks like a local sym is in | |
6941 | fact a call needing a TOC adjustment. */ | |
6942 | if (sym_sec != NULL | |
6943 | && sym_sec->output_section != NULL | |
6944 | && (htab->stub_group[sym_sec->id].toc_off | |
9b5ecbd0 AM |
6945 | != htab->stub_group[section->id].toc_off) |
6946 | && sym_sec->has_gp_reloc | |
6947 | && section->has_gp_reloc) | |
ad8e1ba5 AM |
6948 | stub_type = ppc_stub_long_branch_r2off; |
6949 | } | |
6950 | ||
721956f4 AM |
6951 | if (stub_type == ppc_stub_none) |
6952 | continue; | |
6953 | ||
411e1bfb AM |
6954 | /* __tls_get_addr calls might be eliminated. */ |
6955 | if (stub_type != ppc_stub_plt_call | |
6956 | && hash != NULL | |
6957 | && &hash->elf == htab->tls_get_addr | |
6958 | && section->has_tls_reloc | |
6959 | && irela != internal_relocs) | |
6960 | { | |
6961 | /* Get tls info. */ | |
e7b938ca | 6962 | char *tls_mask; |
411e1bfb | 6963 | |
e7b938ca | 6964 | if (!get_tls_mask (&tls_mask, &local_syms, |
411e1bfb AM |
6965 | irela - 1, input_bfd)) |
6966 | goto error_ret_free_internal; | |
e7b938ca | 6967 | if (*tls_mask != 0) |
411e1bfb AM |
6968 | continue; |
6969 | } | |
6970 | ||
721956f4 AM |
6971 | /* Support for grouping stub sections. */ |
6972 | id_sec = htab->stub_group[section->id].link_sec; | |
6973 | ||
6974 | /* Get the name of this stub. */ | |
6975 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
6976 | if (!stub_name) | |
6977 | goto error_ret_free_internal; | |
6978 | ||
6979 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 6980 | stub_name, FALSE, FALSE); |
721956f4 AM |
6981 | if (stub_entry != NULL) |
6982 | { | |
6983 | /* The proper stub has already been created. */ | |
6984 | free (stub_name); | |
6985 | continue; | |
6986 | } | |
6987 | ||
6988 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
6989 | if (stub_entry == NULL) | |
6990 | { | |
6991 | free (stub_name); | |
6cdc0ccc AM |
6992 | error_ret_free_internal: |
6993 | if (elf_section_data (section)->relocs == NULL) | |
6994 | free (internal_relocs); | |
6995 | error_ret_free_local: | |
6996 | if (local_syms != NULL | |
6997 | && (symtab_hdr->contents | |
6998 | != (unsigned char *) local_syms)) | |
6999 | free (local_syms); | |
b34976b6 | 7000 | return FALSE; |
721956f4 AM |
7001 | } |
7002 | ||
ad8e1ba5 | 7003 | stub_entry->stub_type = stub_type; |
721956f4 AM |
7004 | stub_entry->target_value = sym_value; |
7005 | stub_entry->target_section = sym_sec; | |
721956f4 | 7006 | stub_entry->h = hash; |
411e1bfb | 7007 | stub_entry->addend = irela->r_addend; |
b34976b6 | 7008 | stub_changed = TRUE; |
721956f4 AM |
7009 | } |
7010 | ||
7011 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 7012 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 7013 | free (internal_relocs); |
721956f4 | 7014 | } |
6cdc0ccc AM |
7015 | |
7016 | if (local_syms != NULL | |
7017 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
7018 | { | |
7019 | if (!info->keep_memory) | |
7020 | free (local_syms); | |
7021 | else | |
7022 | symtab_hdr->contents = (unsigned char *) local_syms; | |
7023 | } | |
721956f4 AM |
7024 | } |
7025 | ||
7026 | if (!stub_changed) | |
7027 | break; | |
7028 | ||
7029 | /* OK, we've added some stubs. Find out the new size of the | |
7030 | stub sections. */ | |
7031 | for (stub_sec = htab->stub_bfd->sections; | |
7032 | stub_sec != NULL; | |
7033 | stub_sec = stub_sec->next) | |
7034 | { | |
7035 | stub_sec->_raw_size = 0; | |
7036 | stub_sec->_cooked_size = 0; | |
7037 | } | |
7038 | htab->sbrlt->_raw_size = 0; | |
7039 | htab->sbrlt->_cooked_size = 0; | |
7040 | ||
7041 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab); | |
7042 | ||
7043 | /* Ask the linker to do its stuff. */ | |
7044 | (*htab->layout_sections_again) (); | |
7045 | } | |
7046 | ||
afbe61cf AM |
7047 | /* It would be nice to strip .branch_lt from the output if the |
7048 | section is empty, but it's too late. If we strip sections here, | |
7049 | the dynamic symbol table is corrupted since the section symbol | |
7050 | for the stripped section isn't written. */ | |
721956f4 | 7051 | |
b34976b6 | 7052 | return TRUE; |
721956f4 AM |
7053 | } |
7054 | ||
7055 | /* Called after we have determined section placement. If sections | |
805fc799 | 7056 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 7057 | |
805fc799 AM |
7058 | bfd_vma |
7059 | ppc64_elf_toc (obfd) | |
5d1634d7 | 7060 | bfd *obfd; |
721956f4 | 7061 | { |
805fc799 AM |
7062 | asection *s; |
7063 | bfd_vma TOCstart; | |
721956f4 | 7064 | |
805fc799 AM |
7065 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
7066 | order. The TOC starts where the first of these sections starts. */ | |
7067 | s = bfd_get_section_by_name (obfd, ".got"); | |
7068 | if (s == NULL) | |
7069 | s = bfd_get_section_by_name (obfd, ".toc"); | |
7070 | if (s == NULL) | |
7071 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
7072 | if (s == NULL) | |
7073 | s = bfd_get_section_by_name (obfd, ".plt"); | |
7074 | if (s == NULL) | |
7075 | { | |
7076 | /* This may happen for | |
7077 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
7078 | .toc directive | |
7079 | o bad linker script | |
7080 | o --gc-sections and empty TOC sections | |
7081 | ||
7082 | FIXME: Warn user? */ | |
7083 | ||
7084 | /* Look for a likely section. We probably won't even be | |
7085 | using TOCstart. */ | |
7086 | for (s = obfd->sections; s != NULL; s = s->next) | |
7087 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
7088 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7089 | break; | |
721956f4 | 7090 | if (s == NULL) |
805fc799 AM |
7091 | for (s = obfd->sections; s != NULL; s = s->next) |
7092 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
7093 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
7094 | break; | |
721956f4 | 7095 | if (s == NULL) |
805fc799 AM |
7096 | for (s = obfd->sections; s != NULL; s = s->next) |
7097 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
7098 | break; | |
721956f4 | 7099 | if (s == NULL) |
805fc799 AM |
7100 | for (s = obfd->sections; s != NULL; s = s->next) |
7101 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
7102 | break; | |
7103 | } | |
721956f4 | 7104 | |
805fc799 AM |
7105 | TOCstart = 0; |
7106 | if (s != NULL) | |
7107 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 7108 | |
805fc799 | 7109 | return TOCstart; |
721956f4 AM |
7110 | } |
7111 | ||
7112 | /* Build all the stubs associated with the current output file. | |
7113 | The stubs are kept in a hash table attached to the main linker | |
7114 | hash table. This function is called via gldelf64ppc_finish. */ | |
7115 | ||
b34976b6 | 7116 | bfd_boolean |
ad8e1ba5 AM |
7117 | ppc64_elf_build_stubs (emit_stub_syms, info) |
7118 | bfd_boolean emit_stub_syms; | |
721956f4 | 7119 | struct bfd_link_info *info; |
5d1634d7 AM |
7120 | { |
7121 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 7122 | asection *stub_sec; |
5d1634d7 AM |
7123 | bfd_byte *p; |
7124 | ||
ad8e1ba5 | 7125 | htab->emit_stub_syms = emit_stub_syms; |
721956f4 AM |
7126 | for (stub_sec = htab->stub_bfd->sections; |
7127 | stub_sec != NULL; | |
7128 | stub_sec = stub_sec->next) | |
7129 | { | |
7130 | bfd_size_type size; | |
7131 | ||
7132 | /* Allocate memory to hold the linker stubs. */ | |
7133 | size = stub_sec->_raw_size; | |
7134 | if (size != 0) | |
7135 | { | |
7136 | stub_sec->contents = (bfd_byte *) bfd_zalloc (htab->stub_bfd, size); | |
7137 | if (stub_sec->contents == NULL) | |
b34976b6 | 7138 | return FALSE; |
721956f4 AM |
7139 | } |
7140 | stub_sec->_cooked_size = 0; | |
7141 | } | |
5d1634d7 | 7142 | |
721956f4 | 7143 | if (htab->splt != NULL) |
5d1634d7 | 7144 | { |
9f951329 | 7145 | unsigned int indx; |
ad8e1ba5 | 7146 | bfd_vma plt0; |
9f951329 | 7147 | |
721956f4 | 7148 | /* Build the .glink plt call stub. */ |
ad8e1ba5 AM |
7149 | plt0 = (htab->splt->output_section->vma |
7150 | + htab->splt->output_offset | |
7151 | - (htab->sglink->output_section->vma | |
7152 | + htab->sglink->output_offset | |
7153 | + GLINK_CALL_STUB_SIZE)); | |
7154 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 7155 | { |
ad8e1ba5 AM |
7156 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
7157 | bfd_set_error (bfd_error_bad_value); | |
7158 | return FALSE; | |
721956f4 | 7159 | } |
721956f4 | 7160 | |
ad8e1ba5 AM |
7161 | p = htab->sglink->contents; |
7162 | bfd_put_32 (htab->sglink->owner, MFCTR_R12, p); | |
7163 | p += 4; | |
7164 | bfd_put_32 (htab->sglink->owner, SLDI_R11_R0_3, p); | |
7165 | p += 4; | |
7166 | bfd_put_32 (htab->sglink->owner, ADDIC_R2_R0_32K, p); | |
7167 | p += 4; | |
7168 | bfd_put_32 (htab->sglink->owner, SUB_R12_R12_R11, p); | |
7169 | p += 4; | |
7170 | bfd_put_32 (htab->sglink->owner, SRADI_R2_R2_63, p); | |
7171 | p += 4; | |
7172 | bfd_put_32 (htab->sglink->owner, SLDI_R11_R0_2, p); | |
7173 | p += 4; | |
7174 | bfd_put_32 (htab->sglink->owner, AND_R2_R2_R11, p); | |
7175 | p += 4; | |
7176 | bfd_put_32 (htab->sglink->owner, SUB_R12_R12_R11, p); | |
7177 | p += 4; | |
7178 | bfd_put_32 (htab->sglink->owner, ADD_R12_R12_R2, p); | |
7179 | p += 4; | |
7180 | bfd_put_32 (htab->sglink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); | |
7181 | p += 4; | |
7182 | bfd_put_32 (htab->sglink->owner, LD_R11_0R12 | PPC_LO (plt0), p); | |
7183 | p += 4; | |
7184 | bfd_put_32 (htab->sglink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); | |
7185 | p += 4; | |
7186 | bfd_put_32 (htab->sglink->owner, LD_R2_0R12 | 8, p); | |
7187 | p += 4; | |
7188 | bfd_put_32 (htab->sglink->owner, MTCTR_R11, p); | |
7189 | p += 4; | |
7190 | bfd_put_32 (htab->sglink->owner, LD_R11_0R12 | 16, p); | |
7191 | p += 4; | |
7192 | bfd_put_32 (htab->sglink->owner, BCTR, p); | |
7193 | p += 4; | |
7194 | ||
9f951329 AM |
7195 | /* Build the .glink lazy link call stubs. */ |
7196 | indx = 0; | |
7197 | while (p < htab->sglink->contents + htab->sglink->_raw_size) | |
7198 | { | |
7199 | if (indx < 0x8000) | |
7200 | { | |
7201 | bfd_put_32 (htab->sglink->owner, LI_R0_0 | indx, p); | |
7202 | p += 4; | |
7203 | } | |
7204 | else | |
7205 | { | |
7206 | bfd_put_32 (htab->sglink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
7207 | p += 4; | |
7208 | bfd_put_32 (htab->sglink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); | |
7209 | p += 4; | |
7210 | } | |
7211 | bfd_put_32 (htab->sglink->owner, | |
7212 | B_DOT | ((htab->sglink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 7213 | indx++; |
9f951329 AM |
7214 | p += 4; |
7215 | } | |
7216 | htab->sglink->_cooked_size = p - htab->sglink->contents; | |
5d1634d7 | 7217 | } |
5d1634d7 | 7218 | |
721956f4 AM |
7219 | if (htab->sbrlt->_raw_size != 0) |
7220 | { | |
7221 | htab->sbrlt->contents = (bfd_byte *) bfd_zalloc (htab->sbrlt->owner, | |
7222 | htab->sbrlt->_raw_size); | |
7223 | if (htab->sbrlt->contents == NULL) | |
b34976b6 | 7224 | return FALSE; |
721956f4 | 7225 | } |
5d1634d7 | 7226 | |
721956f4 AM |
7227 | /* Build the stubs as directed by the stub hash table. */ |
7228 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 7229 | |
721956f4 AM |
7230 | for (stub_sec = htab->stub_bfd->sections; |
7231 | stub_sec != NULL; | |
7232 | stub_sec = stub_sec->next) | |
7233 | { | |
7234 | if (stub_sec->_raw_size != stub_sec->_cooked_size) | |
7235 | break; | |
7236 | } | |
5d1634d7 | 7237 | |
721956f4 | 7238 | if (stub_sec != NULL |
5d1634d7 AM |
7239 | || htab->sglink->_raw_size != htab->sglink->_cooked_size) |
7240 | { | |
b34976b6 | 7241 | htab->stub_error = TRUE; |
721956f4 | 7242 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 7243 | } |
721956f4 AM |
7244 | |
7245 | return !htab->stub_error; | |
5bd4f169 AM |
7246 | } |
7247 | ||
5bd4f169 AM |
7248 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7249 | to handle the relocations for a section. | |
7250 | ||
7251 | The relocs are always passed as Rela structures; if the section | |
7252 | actually uses Rel structures, the r_addend field will always be | |
7253 | zero. | |
7254 | ||
7255 | This function is responsible for adjust the section contents as | |
7256 | necessary, and (if using Rela relocs and generating a | |
7257 | relocateable output file) adjusting the reloc addend as | |
7258 | necessary. | |
7259 | ||
7260 | This function does not have to worry about setting the reloc | |
7261 | address or the reloc symbol index. | |
7262 | ||
7263 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7264 | ||
7265 | LOCAL_SECTIONS is an array giving the section in the input file | |
7266 | corresponding to the st_shndx field of each local symbol. | |
7267 | ||
7268 | The global hash table entry for the global symbols can be found | |
7269 | via elf_sym_hashes (input_bfd). | |
7270 | ||
7271 | When generating relocateable output, this function must handle | |
7272 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
7273 | going to be the section symbol corresponding to the output | |
7274 | section, which means that the addend must be adjusted | |
7275 | accordingly. */ | |
7276 | ||
b34976b6 | 7277 | static bfd_boolean |
5bd4f169 AM |
7278 | ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
7279 | contents, relocs, local_syms, local_sections) | |
7280 | bfd *output_bfd; | |
7281 | struct bfd_link_info *info; | |
7282 | bfd *input_bfd; | |
7283 | asection *input_section; | |
7284 | bfd_byte *contents; | |
7285 | Elf_Internal_Rela *relocs; | |
7286 | Elf_Internal_Sym *local_syms; | |
7287 | asection **local_sections; | |
7288 | { | |
65f38f15 | 7289 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
7290 | Elf_Internal_Shdr *symtab_hdr; |
7291 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
7292 | Elf_Internal_Rela *rel; |
7293 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
7294 | Elf_Internal_Rela outrel; |
7295 | bfd_byte *loc; | |
411e1bfb | 7296 | struct got_entry **local_got_ents; |
5bd4f169 | 7297 | bfd_vma TOCstart; |
b34976b6 AM |
7298 | bfd_boolean ret = TRUE; |
7299 | bfd_boolean is_opd; | |
96e0dda4 | 7300 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 7301 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 7302 | |
b491616a | 7303 | if (info->relocateable) |
b34976b6 | 7304 | return TRUE; |
b491616a | 7305 | |
65f38f15 | 7306 | /* Initialize howto table if needed. */ |
5bd4f169 | 7307 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
7308 | ppc_howto_init (); |
7309 | ||
65f38f15 | 7310 | htab = ppc_hash_table (info); |
411e1bfb | 7311 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 7312 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
7313 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
7314 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 7315 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 7316 | |
5bd4f169 AM |
7317 | rel = relocs; |
7318 | relend = relocs + input_section->reloc_count; | |
7319 | for (; rel < relend; rel++) | |
7320 | { | |
04c9666a | 7321 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
7322 | bfd_vma addend; |
7323 | bfd_reloc_status_type r; | |
7324 | Elf_Internal_Sym *sym; | |
7325 | asection *sec; | |
7326 | struct elf_link_hash_entry *h; | |
721956f4 | 7327 | struct elf_link_hash_entry *fdh; |
5bd4f169 | 7328 | const char *sym_name; |
5bd4f169 | 7329 | unsigned long r_symndx; |
951fd09b | 7330 | char tls_mask, tls_gd, tls_type; |
5bd4f169 | 7331 | bfd_vma relocation; |
b34976b6 AM |
7332 | bfd_boolean unresolved_reloc; |
7333 | bfd_boolean warned; | |
adadcc0c | 7334 | long insn, mask; |
721956f4 AM |
7335 | struct ppc_stub_hash_entry *stub_entry; |
7336 | bfd_vma max_br_offset; | |
7337 | bfd_vma from; | |
5bd4f169 | 7338 | |
04c9666a | 7339 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 7340 | r_symndx = ELF64_R_SYM (rel->r_info); |
65f38f15 AM |
7341 | sym = (Elf_Internal_Sym *) 0; |
7342 | sec = (asection *) 0; | |
7343 | h = (struct elf_link_hash_entry *) 0; | |
7344 | sym_name = (const char *) 0; | |
b34976b6 AM |
7345 | unresolved_reloc = FALSE; |
7346 | warned = FALSE; | |
65f38f15 | 7347 | |
0b13192e | 7348 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
7349 | { |
7350 | /* It's a local symbol. */ | |
7351 | sym = local_syms + r_symndx; | |
7352 | sec = local_sections[r_symndx]; | |
411e1bfb | 7353 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
f8df10f4 | 7354 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
1e2f5b6e AM |
7355 | if (elf_section_data (sec) != NULL) |
7356 | { | |
7357 | long *opd_sym_adjust; | |
7358 | ||
f0abc2a1 | 7359 | opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust; |
1e2f5b6e AM |
7360 | if (opd_sym_adjust != NULL && sym->st_value % 24 == 0) |
7361 | relocation += opd_sym_adjust[sym->st_value / 24]; | |
7362 | } | |
5bd4f169 AM |
7363 | } |
7364 | else | |
7365 | { | |
7366 | /* It's a global symbol. */ | |
7367 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7368 | while (h->root.type == bfd_link_hash_indirect | |
7369 | || h->root.type == bfd_link_hash_warning) | |
7370 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7371 | sym_name = h->root.root.string; | |
65f38f15 | 7372 | relocation = 0; |
5bd4f169 AM |
7373 | if (h->root.type == bfd_link_hash_defined |
7374 | || h->root.type == bfd_link_hash_defweak) | |
7375 | { | |
7376 | sec = h->root.u.def.section; | |
65f38f15 AM |
7377 | if (sec->output_section == NULL) |
7378 | /* Set a flag that will be cleared later if we find a | |
7379 | relocation value for this symbol. output_section | |
7380 | is typically NULL for symbols satisfied by a shared | |
7381 | library. */ | |
b34976b6 | 7382 | unresolved_reloc = TRUE; |
5bd4f169 AM |
7383 | else |
7384 | relocation = (h->root.u.def.value | |
7385 | + sec->output_section->vma | |
7386 | + sec->output_offset); | |
7387 | } | |
7388 | else if (h->root.type == bfd_link_hash_undefweak) | |
65f38f15 | 7389 | ; |
671bae9c | 7390 | else if (info->shared |
65f38f15 AM |
7391 | && !info->no_undefined |
7392 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
7393 | ; | |
5bd4f169 AM |
7394 | else |
7395 | { | |
7396 | if (! ((*info->callbacks->undefined_symbol) | |
7397 | (info, h->root.root.string, input_bfd, input_section, | |
411e1bfb AM |
7398 | rel->r_offset, (!info->shared |
7399 | || info->no_undefined | |
7400 | || ELF_ST_VISIBILITY (h->other))))) | |
b34976b6 AM |
7401 | return FALSE; |
7402 | warned = TRUE; | |
5bd4f169 AM |
7403 | } |
7404 | } | |
7405 | ||
951fd09b AM |
7406 | /* TLS optimizations. Replace instruction sequences and relocs |
7407 | based on information we collected in tls_optimize. We edit | |
7408 | RELOCS so that --emit-relocs will output something sensible | |
7409 | for the final instruction stream. */ | |
7410 | tls_mask = 0; | |
7411 | tls_gd = 0; | |
d881513a | 7412 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
7413 | { |
7414 | if (h != NULL) | |
e7b938ca | 7415 | tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask; |
411e1bfb AM |
7416 | else if (local_got_ents != NULL) |
7417 | { | |
e7b938ca AM |
7418 | char *lgot_masks; |
7419 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
7420 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb AM |
7421 | } |
7422 | } | |
7423 | ||
7424 | /* Ensure reloc mapping code below stays sane. */ | |
7425 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
7426 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
7427 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
7428 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
7429 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
7430 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
7431 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
7432 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
7433 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
7434 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
7435 | abort (); | |
7436 | switch (r_type) | |
7437 | { | |
7438 | default: | |
411e1bfb AM |
7439 | break; |
7440 | ||
7441 | case R_PPC64_TOC16: | |
7442 | case R_PPC64_TOC16_LO: | |
7443 | case R_PPC64_TOC16_DS: | |
7444 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
7445 | { |
7446 | /* Check for toc tls entries. */ | |
7447 | char *toc_tls; | |
951fd09b | 7448 | int retval; |
411e1bfb | 7449 | |
e7b938ca | 7450 | retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd); |
951fd09b | 7451 | if (retval == 0) |
411e1bfb AM |
7452 | return FALSE; |
7453 | ||
7454 | if (toc_tls) | |
7455 | { | |
951fd09b | 7456 | tls_mask = *toc_tls; |
411e1bfb AM |
7457 | if (r_type == R_PPC64_TOC16_DS |
7458 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
7459 | { |
7460 | if (tls_mask != 0 | |
7461 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
7462 | goto toctprel; | |
7463 | } | |
411e1bfb | 7464 | else |
951fd09b AM |
7465 | { |
7466 | /* If we found a GD reloc pair, then we might be | |
7467 | doing a GD->IE transition. */ | |
7468 | if (retval == 2) | |
7469 | { | |
7470 | tls_gd = TLS_TPRELGD; | |
7471 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7472 | goto tls_get_addr_check; | |
7473 | } | |
7474 | else if (retval == 3) | |
7475 | { | |
7476 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7477 | goto tls_get_addr_check; | |
7478 | } | |
7479 | } | |
411e1bfb AM |
7480 | } |
7481 | } | |
7482 | break; | |
7483 | ||
7484 | case R_PPC64_GOT_TPREL16_DS: | |
7485 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
7486 | if (tls_mask != 0 |
7487 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7488 | { |
7489 | bfd_vma insn; | |
81407a69 | 7490 | toctprel: |
411e1bfb AM |
7491 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
7492 | insn &= 31 << 21; | |
7493 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
7494 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
7495 | r_type = R_PPC64_TPREL16_HA; | |
7496 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7497 | } | |
7498 | break; | |
7499 | ||
7500 | case R_PPC64_TLS: | |
951fd09b | 7501 | if (tls_mask == 0) |
411e1bfb AM |
7502 | { |
7503 | /* Check for toc tls entries. */ | |
7504 | char *toc_tls; | |
7505 | ||
e7b938ca | 7506 | if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd)) |
411e1bfb AM |
7507 | return FALSE; |
7508 | ||
7509 | if (toc_tls) | |
951fd09b | 7510 | tls_mask = *toc_tls; |
411e1bfb | 7511 | } |
951fd09b AM |
7512 | if (tls_mask != 0 |
7513 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7514 | { |
7515 | bfd_vma insn, rtra; | |
7516 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
7517 | if ((insn & ((31 << 26) | (31 << 11))) | |
7518 | == ((31 << 26) | (13 << 11))) | |
7519 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7520 | else if ((insn & ((31 << 26) | (31 << 16))) | |
7521 | == ((31 << 26) | (13 << 16))) | |
7522 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
7523 | else | |
7524 | abort (); | |
7525 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
7526 | /* add -> addi. */ | |
7527 | insn = 14 << 26; | |
7528 | else if ((insn & (31 << 1)) == 23 << 1 | |
7529 | && ((insn & (31 << 6)) < 14 << 6 | |
7530 | || ((insn & (31 << 6)) >= 16 << 6 | |
7531 | && (insn & (31 << 6)) < 24 << 6))) | |
7532 | /* load and store indexed -> dform. */ | |
7533 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
7534 | else if ((insn & (31 << 1)) == 21 << 1 | |
7535 | && (insn & (0x1a << 6)) == 0) | |
7536 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7537 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
7538 | | ((insn >> 6) & 1)); | |
7539 | else if ((insn & (31 << 1)) == 21 << 1 | |
7540 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
7541 | /* lwax -> lwa. */ | |
7542 | insn = (58 << 26) | 2; | |
7543 | else | |
7544 | abort (); | |
7545 | insn |= rtra; | |
7546 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
7547 | r_type = R_PPC64_TPREL16_LO; | |
7548 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7549 | /* Was PPC64_TLS which sits on insn boundary, now | |
7550 | PPC64_TPREL16_LO which is at insn+2. */ | |
7551 | rel->r_offset += 2; | |
7552 | } | |
7553 | break; | |
7554 | ||
411e1bfb AM |
7555 | case R_PPC64_GOT_TLSGD16_HI: |
7556 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
7557 | tls_gd = TLS_TPRELGD; |
7558 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7559 | goto tls_gdld_hi; | |
7560 | break; | |
7561 | ||
411e1bfb AM |
7562 | case R_PPC64_GOT_TLSLD16_HI: |
7563 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7564 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 7565 | { |
951fd09b AM |
7566 | tls_gdld_hi: |
7567 | if ((tls_mask & tls_gd) != 0) | |
7568 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7569 | + R_PPC64_GOT_TPREL16_DS); | |
7570 | else | |
411e1bfb | 7571 | { |
951fd09b AM |
7572 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7573 | rel->r_offset -= 2; | |
7574 | r_type = R_PPC64_NONE; | |
411e1bfb | 7575 | } |
951fd09b | 7576 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
7577 | } |
7578 | break; | |
7579 | ||
951fd09b AM |
7580 | case R_PPC64_GOT_TLSGD16: |
7581 | case R_PPC64_GOT_TLSGD16_LO: | |
7582 | tls_gd = TLS_TPRELGD; | |
7583 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7584 | goto tls_get_addr_check; | |
7585 | break; | |
411e1bfb | 7586 | |
951fd09b AM |
7587 | case R_PPC64_GOT_TLSLD16: |
7588 | case R_PPC64_GOT_TLSLD16_LO: | |
7589 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7590 | { | |
7591 | tls_get_addr_check: | |
7592 | if (rel + 1 < relend) | |
411e1bfb | 7593 | { |
951fd09b AM |
7594 | enum elf_ppc64_reloc_type r_type2; |
7595 | unsigned long r_symndx2; | |
7596 | struct elf_link_hash_entry *h2; | |
7597 | bfd_vma insn1, insn2, insn3; | |
7598 | bfd_vma offset; | |
7599 | ||
7600 | /* The next instruction should be a call to | |
7601 | __tls_get_addr. Peek at the reloc to be sure. */ | |
7602 | r_type2 | |
7603 | = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel[1].r_info); | |
7604 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); | |
7605 | if (r_symndx2 < symtab_hdr->sh_info | |
7606 | || (r_type2 != R_PPC64_REL14 | |
7607 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
7608 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
7609 | && r_type2 != R_PPC64_REL24)) | |
7610 | break; | |
7611 | ||
7612 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
7613 | while (h2->root.type == bfd_link_hash_indirect | |
7614 | || h2->root.type == bfd_link_hash_warning) | |
7615 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
7616 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
7617 | break; | |
7618 | ||
7619 | /* OK, it checks out. Replace the call. */ | |
7620 | offset = rel[1].r_offset; | |
7621 | insn1 = bfd_get_32 (output_bfd, | |
7622 | contents + rel->r_offset - 2); | |
7623 | insn3 = bfd_get_32 (output_bfd, | |
7624 | contents + offset + 4); | |
7625 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 7626 | { |
951fd09b AM |
7627 | /* IE */ |
7628 | insn1 &= (1 << 26) - (1 << 2); | |
7629 | insn1 |= 58 << 26; /* ld */ | |
7630 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
7631 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
7632 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
7633 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7634 | + R_PPC64_GOT_TPREL16_DS); | |
7635 | else | |
7636 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
7637 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7638 | } |
7639 | else | |
951fd09b AM |
7640 | { |
7641 | /* LE */ | |
7642 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
7643 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7644 | if (tls_gd == 0) | |
7645 | { | |
7646 | /* Was an LD reloc. */ | |
7647 | r_symndx = 0; | |
7648 | rel->r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7649 | rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7650 | } | |
7651 | r_type = R_PPC64_TPREL16_HA; | |
7652 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7653 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
7654 | R_PPC64_TPREL16_LO); | |
7655 | rel[1].r_offset += 2; | |
7656 | } | |
7657 | if (insn3 == NOP | |
7658 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
7659 | { | |
7660 | insn3 = insn2; | |
7661 | insn2 = NOP; | |
7662 | rel[1].r_offset += 4; | |
7663 | } | |
7664 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
7665 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7666 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
7667 | if (tls_gd == 0) | |
7668 | { | |
7669 | /* We changed the symbol on an LD reloc. Start over | |
ad8e1ba5 | 7670 | in order to get h, sym, sec etc. right. */ |
951fd09b AM |
7671 | rel--; |
7672 | continue; | |
7673 | } | |
411e1bfb | 7674 | } |
411e1bfb | 7675 | } |
411e1bfb AM |
7676 | break; |
7677 | ||
7678 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
7679 | if (rel + 1 < relend |
7680 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
7681 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 7682 | { |
951fd09b AM |
7683 | if ((tls_mask & TLS_GD) == 0) |
7684 | { | |
7685 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
7686 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7687 | r_type = R_PPC64_TPREL64; | |
7688 | else | |
7689 | { | |
7690 | bfd_put_64 (output_bfd, (bfd_vma) 1, | |
7691 | contents + rel->r_offset); | |
7692 | r_type = R_PPC64_NONE; | |
7693 | } | |
7694 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7695 | } | |
7696 | } | |
7697 | else | |
7698 | { | |
7699 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb AM |
7700 | { |
7701 | bfd_put_64 (output_bfd, (bfd_vma) 1, | |
7702 | contents + rel->r_offset); | |
7703 | r_type = R_PPC64_NONE; | |
951fd09b | 7704 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 7705 | } |
411e1bfb AM |
7706 | } |
7707 | break; | |
7708 | ||
7709 | case R_PPC64_TPREL64: | |
951fd09b | 7710 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
7711 | { |
7712 | r_type = R_PPC64_NONE; | |
7713 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7714 | } | |
7715 | break; | |
7716 | } | |
7717 | ||
7718 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 7719 | insn = 0; |
65f38f15 | 7720 | switch (r_type) |
5bd4f169 AM |
7721 | { |
7722 | default: | |
65f38f15 | 7723 | break; |
5bd4f169 | 7724 | |
65f38f15 AM |
7725 | /* Branch taken prediction relocations. */ |
7726 | case R_PPC64_ADDR14_BRTAKEN: | |
7727 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
7728 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
7729 | /* Fall thru. */ | |
65f38f15 | 7730 | |
86c76c7b | 7731 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
7732 | case R_PPC64_ADDR14_BRNTAKEN: |
7733 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
7734 | insn |= bfd_get_32 (output_bfd, |
7735 | contents + rel->r_offset) & ~(0x01 << 21); | |
96e0dda4 AM |
7736 | if (is_power4) |
7737 | { | |
7738 | /* Set 'a' bit. This is 0b00010 in BO field for branch | |
7739 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
7740 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
7741 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
7742 | insn |= 0x02 << 21; | |
7743 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
7744 | insn |= 0x08 << 21; | |
7745 | else | |
7746 | break; | |
7747 | } | |
65f38f15 | 7748 | else |
96e0dda4 | 7749 | { |
411e1bfb | 7750 | from = (rel->r_offset |
805fc799 AM |
7751 | + input_section->output_offset |
7752 | + input_section->output_section->vma); | |
7753 | ||
96e0dda4 | 7754 | /* Invert 'y' bit if not the default. */ |
411e1bfb | 7755 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) |
96e0dda4 AM |
7756 | insn ^= 0x01 << 21; |
7757 | } | |
86c76c7b | 7758 | |
411e1bfb | 7759 | bfd_put_32 (output_bfd, (bfd_vma) insn, contents + rel->r_offset); |
65f38f15 | 7760 | break; |
5bd4f169 | 7761 | |
65f38f15 | 7762 | case R_PPC64_REL24: |
ad8e1ba5 AM |
7763 | /* Calls to functions with a different TOC, such as calls to |
7764 | shared objects, need to alter the TOC pointer. This is | |
7765 | done using a linkage stub. A REL24 branching to these | |
7766 | linkage stubs needs to be followed by a nop, as the nop | |
7767 | will be replaced with an instruction to restore the TOC | |
7768 | base pointer. */ | |
7769 | if (((h != NULL | |
7770 | && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL | |
7771 | && fdh->plt.plist != NULL) | |
7772 | || ((fdh = h, sec) != NULL | |
7773 | && sec->output_section != NULL | |
7774 | && (htab->stub_group[sec->id].toc_off | |
7775 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 7776 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
7777 | rel, htab)) != NULL |
7778 | && (stub_entry->stub_type == ppc_stub_plt_call | |
7779 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
7780 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 7781 | { |
b34976b6 | 7782 | bfd_boolean can_plt_call = 0; |
721956f4 | 7783 | |
411e1bfb | 7784 | if (rel->r_offset + 8 <= input_section->_cooked_size) |
41bd81ab | 7785 | { |
411e1bfb | 7786 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
721956f4 AM |
7787 | if (insn == NOP |
7788 | || insn == CROR_151515 || insn == CROR_313131) | |
41bd81ab | 7789 | { |
721956f4 | 7790 | bfd_put_32 (input_bfd, (bfd_vma) LD_R2_40R1, |
411e1bfb | 7791 | contents + rel->r_offset + 4); |
721956f4 | 7792 | can_plt_call = 1; |
41bd81ab | 7793 | } |
5bd4f169 | 7794 | } |
721956f4 AM |
7795 | |
7796 | if (!can_plt_call) | |
7797 | { | |
ad8e1ba5 AM |
7798 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7799 | { | |
7800 | /* If this is a plain branch rather than a branch | |
7801 | and link, don't require a nop. */ | |
7802 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
7803 | if ((insn & 1) == 0) | |
7804 | can_plt_call = 1; | |
7805 | } | |
7806 | else | |
7807 | { | |
7808 | if (strcmp (input_section->output_section->name, | |
7809 | ".init") == 0 | |
7810 | || strcmp (input_section->output_section->name, | |
7811 | ".fini") == 0) | |
7812 | (*_bfd_error_handler) | |
7813 | (_("%s(%s+0x%lx): automatic multiple TOCs " | |
7814 | "not supported using your crt files; " | |
7815 | "recompile with -mminimal-toc or upgrade gcc"), | |
7816 | bfd_archive_filename (input_bfd), | |
7817 | input_section->name, | |
7818 | (long) rel->r_offset); | |
7819 | else | |
7820 | (*_bfd_error_handler) | |
7821 | (_("%s(%s+0x%lx): sibling call optimization to `%s' " | |
7822 | "does not allow automatic multiple TOCs; " | |
7823 | "recompile with -mminimal-toc or " | |
7824 | "-fno-optimize-sibling-calls, " | |
7825 | "or make `%s' extern"), | |
7826 | bfd_archive_filename (input_bfd), | |
7827 | input_section->name, | |
7828 | (long) rel->r_offset, | |
7829 | sym_name, | |
7830 | sym_name); | |
7831 | bfd_set_error (bfd_error_bad_value); | |
7832 | ret = FALSE; | |
7833 | } | |
721956f4 AM |
7834 | } |
7835 | ||
7836 | if (can_plt_call) | |
7837 | { | |
7838 | relocation = (stub_entry->stub_offset | |
7839 | + stub_entry->stub_sec->output_offset | |
7840 | + stub_entry->stub_sec->output_section->vma); | |
ad8e1ba5 AM |
7841 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7842 | unresolved_reloc = FALSE; | |
721956f4 | 7843 | } |
5bd4f169 | 7844 | } |
e86ce104 AM |
7845 | |
7846 | if (h != NULL | |
7847 | && h->root.type == bfd_link_hash_undefweak | |
721956f4 | 7848 | && relocation == 0 |
411e1bfb | 7849 | && rel->r_addend == 0) |
e86ce104 | 7850 | { |
721956f4 AM |
7851 | /* Tweak calls to undefined weak functions to point at a |
7852 | blr. We can thus call a weak function without first | |
7853 | checking whether the function is defined. We have a | |
7854 | blr at the end of .sfpr. */ | |
805fc799 | 7855 | BFD_ASSERT (htab->sfpr->_raw_size != 0); |
721956f4 AM |
7856 | relocation = (htab->sfpr->_raw_size - 4 |
7857 | + htab->sfpr->output_offset | |
7858 | + htab->sfpr->output_section->vma); | |
411e1bfb | 7859 | from = (rel->r_offset |
721956f4 AM |
7860 | + input_section->output_offset |
7861 | + input_section->output_section->vma); | |
805fc799 | 7862 | |
721956f4 AM |
7863 | /* But let's not be silly about it. If the blr isn't in |
7864 | reach, just go to the next instruction. */ | |
805fc799 AM |
7865 | if (relocation - from + (1 << 25) >= (1 << 26) |
7866 | || htab->sfpr->_raw_size == 0) | |
721956f4 | 7867 | relocation = from + 4; |
e86ce104 | 7868 | } |
65f38f15 AM |
7869 | break; |
7870 | } | |
5bd4f169 | 7871 | |
65f38f15 | 7872 | /* Set `addend'. */ |
411e1bfb AM |
7873 | tls_type = 0; |
7874 | addend = rel->r_addend; | |
65f38f15 AM |
7875 | switch (r_type) |
7876 | { | |
7877 | default: | |
7878 | (*_bfd_error_handler) | |
7879 | (_("%s: unknown relocation type %d for symbol %s"), | |
7880 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
5bd4f169 | 7881 | |
65f38f15 | 7882 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7883 | ret = FALSE; |
65f38f15 | 7884 | continue; |
5bd4f169 | 7885 | |
65f38f15 | 7886 | case R_PPC64_NONE: |
411e1bfb | 7887 | case R_PPC64_TLS: |
04c9666a AM |
7888 | case R_PPC64_GNU_VTINHERIT: |
7889 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 7890 | continue; |
5bd4f169 AM |
7891 | |
7892 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
7893 | address in the GOT as relocation value instead of the | |
411e1bfb | 7894 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 7895 | symbol and put the symbol value there. */ |
411e1bfb AM |
7896 | case R_PPC64_GOT_TLSGD16: |
7897 | case R_PPC64_GOT_TLSGD16_LO: | |
7898 | case R_PPC64_GOT_TLSGD16_HI: | |
7899 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 7900 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
7901 | goto dogot; |
7902 | ||
7903 | case R_PPC64_GOT_TLSLD16: | |
7904 | case R_PPC64_GOT_TLSLD16_LO: | |
7905 | case R_PPC64_GOT_TLSLD16_HI: | |
7906 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7907 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
7908 | goto dogot; |
7909 | ||
7910 | case R_PPC64_GOT_TPREL16_DS: | |
7911 | case R_PPC64_GOT_TPREL16_LO_DS: | |
7912 | case R_PPC64_GOT_TPREL16_HI: | |
7913 | case R_PPC64_GOT_TPREL16_HA: | |
7914 | tls_type = TLS_TLS | TLS_TPREL; | |
7915 | goto dogot; | |
7916 | ||
7917 | case R_PPC64_GOT_DTPREL16_DS: | |
7918 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
7919 | case R_PPC64_GOT_DTPREL16_HI: | |
7920 | case R_PPC64_GOT_DTPREL16_HA: | |
7921 | tls_type = TLS_TLS | TLS_DTPREL; | |
7922 | goto dogot; | |
7923 | ||
65f38f15 AM |
7924 | case R_PPC64_GOT16: |
7925 | case R_PPC64_GOT16_LO: | |
7926 | case R_PPC64_GOT16_HI: | |
7927 | case R_PPC64_GOT16_HA: | |
7928 | case R_PPC64_GOT16_DS: | |
7929 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 7930 | dogot: |
5bd4f169 AM |
7931 | { |
7932 | /* Relocation is to the entry for this symbol in the global | |
7933 | offset table. */ | |
d881513a | 7934 | bfd_vma *offp; |
5bd4f169 | 7935 | bfd_vma off; |
d881513a | 7936 | unsigned long indx = 0; |
65f38f15 AM |
7937 | |
7938 | if (htab->sgot == NULL) | |
7939 | abort (); | |
5bd4f169 | 7940 | |
d881513a AM |
7941 | if (tls_type == (TLS_TLS | TLS_LD) |
7942 | && (h == NULL | |
7943 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
7944 | offp = &htab->tlsld_got.offset; | |
411e1bfb | 7945 | else |
5bd4f169 | 7946 | { |
d881513a | 7947 | struct got_entry *ent; |
5bd4f169 | 7948 | |
d881513a AM |
7949 | if (h != NULL) |
7950 | { | |
7951 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
f4656909 | 7952 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
d881513a | 7953 | || (info->shared |
586119b3 | 7954 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
d881513a AM |
7955 | /* This is actually a static link, or it is a |
7956 | -Bsymbolic link and the symbol is defined | |
7957 | locally, or the symbol was forced to be local | |
7958 | because of a version file. */ | |
7959 | ; | |
7960 | else | |
7961 | { | |
7962 | indx = h->dynindx; | |
7963 | unresolved_reloc = FALSE; | |
7964 | } | |
7965 | ent = h->got.glist; | |
7966 | } | |
411e1bfb | 7967 | else |
5bd4f169 | 7968 | { |
d881513a AM |
7969 | if (local_got_ents == NULL) |
7970 | abort (); | |
7971 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 7972 | } |
d881513a AM |
7973 | |
7974 | for (; ent != NULL; ent = ent->next) | |
7975 | if (ent->addend == rel->r_addend | |
7976 | && ent->tls_type == tls_type) | |
7977 | break; | |
7978 | if (ent == NULL) | |
7979 | abort (); | |
7980 | offp = &ent->got.offset; | |
5bd4f169 | 7981 | } |
411e1bfb AM |
7982 | |
7983 | /* The offset must always be a multiple of 8. We use the | |
7984 | least significant bit to record whether we have already | |
7985 | processed this entry. */ | |
d881513a | 7986 | off = *offp; |
411e1bfb AM |
7987 | if ((off & 1) != 0) |
7988 | off &= ~1; | |
5bd4f169 AM |
7989 | else |
7990 | { | |
411e1bfb AM |
7991 | /* Generate relocs for the dynamic linker, except in |
7992 | the case of TLSLD where we'll use one entry per | |
7993 | module. */ | |
d881513a | 7994 | *offp = off | 1; |
4e795f50 AM |
7995 | if ((info->shared || indx != 0) |
7996 | && (h == NULL | |
7997 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7998 | || h->root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 7999 | { |
411e1bfb AM |
8000 | outrel.r_offset = (htab->sgot->output_section->vma |
8001 | + htab->sgot->output_offset | |
8002 | + off); | |
81407a69 | 8003 | outrel.r_addend = rel->r_addend; |
d881513a | 8004 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 8005 | { |
411e1bfb | 8006 | outrel.r_addend = 0; |
e515b051 | 8007 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
8008 | if (tls_type == (TLS_TLS | TLS_GD)) |
8009 | { | |
8010 | loc = htab->srelgot->contents; | |
8011 | loc += (htab->srelgot->reloc_count++ | |
8012 | * sizeof (Elf64_External_Rela)); | |
8013 | bfd_elf64_swap_reloca_out (output_bfd, | |
8014 | &outrel, loc); | |
e515b051 | 8015 | outrel.r_offset += 8; |
81407a69 | 8016 | outrel.r_addend = rel->r_addend; |
d881513a AM |
8017 | outrel.r_info |
8018 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 8019 | } |
411e1bfb | 8020 | } |
951fd09b | 8021 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 8022 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 8023 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
8024 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
8025 | else if (indx == 0) | |
81407a69 AM |
8026 | { |
8027 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
8028 | ||
8029 | /* Write the .got section contents for the sake | |
8030 | of prelink. */ | |
8031 | loc = htab->sgot->contents + off; | |
23fbd6fa JJ |
8032 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
8033 | loc); | |
81407a69 | 8034 | } |
411e1bfb AM |
8035 | else |
8036 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
8037 | |
8038 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
8039 | { |
8040 | outrel.r_addend += relocation; | |
8041 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
8042 | outrel.r_addend -= htab->tls_sec->vma; | |
8043 | } | |
411e1bfb AM |
8044 | loc = htab->srelgot->contents; |
8045 | loc += (htab->srelgot->reloc_count++ | |
8046 | * sizeof (Elf64_External_Rela)); | |
8047 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
8048 | } | |
8049 | ||
ad8e1ba5 | 8050 | /* Init the .got section contents here if we're not |
81407a69 | 8051 | emitting a reloc. */ |
d881513a | 8052 | else |
411e1bfb | 8053 | { |
d881513a | 8054 | relocation += rel->r_addend; |
7b609f53 AM |
8055 | if (tls_type == (TLS_TLS | TLS_LD)) |
8056 | relocation = 1; | |
8057 | else if (tls_type != 0) | |
411e1bfb AM |
8058 | { |
8059 | relocation -= htab->tls_sec->vma + DTP_OFFSET; | |
7b609f53 | 8060 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 8061 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 8062 | |
7b609f53 AM |
8063 | if (tls_type == (TLS_TLS | TLS_GD)) |
8064 | { | |
8065 | bfd_put_64 (output_bfd, relocation, | |
8066 | htab->sgot->contents + off + 8); | |
8067 | relocation = 1; | |
8068 | } | |
411e1bfb | 8069 | } |
7b609f53 | 8070 | |
411e1bfb AM |
8071 | bfd_put_64 (output_bfd, relocation, |
8072 | htab->sgot->contents + off); | |
5bd4f169 AM |
8073 | } |
8074 | } | |
8075 | ||
65f38f15 AM |
8076 | if (off >= (bfd_vma) -2) |
8077 | abort (); | |
8078 | ||
8079 | relocation = htab->sgot->output_offset + off; | |
8080 | ||
5bd4f169 | 8081 | /* TOC base (r2) is TOC start plus 0x8000. */ |
411e1bfb | 8082 | addend = - TOC_BASE_OFF; |
5bd4f169 | 8083 | } |
65f38f15 AM |
8084 | break; |
8085 | ||
8086 | case R_PPC64_PLT16_HA: | |
8087 | case R_PPC64_PLT16_HI: | |
8088 | case R_PPC64_PLT16_LO: | |
8089 | case R_PPC64_PLT32: | |
8090 | case R_PPC64_PLT64: | |
8091 | /* Relocation is to the entry for this symbol in the | |
8092 | procedure linkage table. */ | |
8093 | ||
8094 | /* Resolve a PLT reloc against a local symbol directly, | |
8095 | without using the procedure linkage table. */ | |
8096 | if (h == NULL) | |
8097 | break; | |
8098 | ||
411e1bfb AM |
8099 | /* It's possible that we didn't make a PLT entry for this |
8100 | symbol. This happens when statically linking PIC code, | |
8101 | or when using -Bsymbolic. Go find a match if there is a | |
8102 | PLT entry. */ | |
8103 | if (htab->splt != NULL) | |
65f38f15 | 8104 | { |
411e1bfb AM |
8105 | struct plt_entry *ent; |
8106 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
8107 | if (ent->addend == rel->r_addend | |
8108 | && ent->plt.offset != (bfd_vma) -1) | |
8109 | { | |
8110 | relocation = (htab->splt->output_section->vma | |
8111 | + htab->splt->output_offset | |
8112 | + ent->plt.offset); | |
8113 | unresolved_reloc = FALSE; | |
8114 | } | |
65f38f15 | 8115 | } |
65f38f15 | 8116 | break; |
5bd4f169 | 8117 | |
0b13192e AM |
8118 | case R_PPC64_TOC: |
8119 | /* Relocation value is TOC base. */ | |
8120 | relocation = TOCstart; | |
8121 | if (r_symndx == 0) | |
8122 | relocation += htab->stub_group[input_section->id].toc_off; | |
8123 | else if (sec != NULL && !unresolved_reloc) | |
8124 | relocation += htab->stub_group[sec->id].toc_off; | |
8125 | else | |
8126 | unresolved_reloc = TRUE; | |
8127 | goto dodyn2; | |
8128 | ||
5bd4f169 AM |
8129 | /* TOC16 relocs. We want the offset relative to the TOC base, |
8130 | which is the address of the start of the TOC plus 0x8000. | |
8131 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
8132 | in this order. */ | |
65f38f15 AM |
8133 | case R_PPC64_TOC16: |
8134 | case R_PPC64_TOC16_LO: | |
8135 | case R_PPC64_TOC16_HI: | |
8136 | case R_PPC64_TOC16_DS: | |
8137 | case R_PPC64_TOC16_LO_DS: | |
8138 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 8139 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
8140 | break; |
8141 | ||
8142 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
8143 | case R_PPC64_SECTOFF: |
8144 | case R_PPC64_SECTOFF_LO: | |
8145 | case R_PPC64_SECTOFF_HI: | |
8146 | case R_PPC64_SECTOFF_DS: | |
8147 | case R_PPC64_SECTOFF_LO_DS: | |
8148 | case R_PPC64_SECTOFF_HA: | |
8149 | if (sec != (asection *) 0) | |
8150 | addend -= sec->output_section->vma; | |
5bd4f169 AM |
8151 | break; |
8152 | ||
721956f4 AM |
8153 | case R_PPC64_REL14: |
8154 | case R_PPC64_REL14_BRNTAKEN: | |
8155 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
8156 | case R_PPC64_REL24: |
8157 | break; | |
8158 | ||
411e1bfb AM |
8159 | case R_PPC64_TPREL16: |
8160 | case R_PPC64_TPREL16_LO: | |
8161 | case R_PPC64_TPREL16_HI: | |
8162 | case R_PPC64_TPREL16_HA: | |
8163 | case R_PPC64_TPREL16_DS: | |
8164 | case R_PPC64_TPREL16_LO_DS: | |
8165 | case R_PPC64_TPREL16_HIGHER: | |
8166 | case R_PPC64_TPREL16_HIGHERA: | |
8167 | case R_PPC64_TPREL16_HIGHEST: | |
8168 | case R_PPC64_TPREL16_HIGHESTA: | |
8169 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
8170 | if (info->shared) | |
8171 | /* The TPREL16 relocs shouldn't really be used in shared | |
8172 | libs as they will result in DT_TEXTREL being set, but | |
8173 | support them anyway. */ | |
8174 | goto dodyn; | |
8175 | break; | |
8176 | ||
8177 | case R_PPC64_DTPREL16: | |
8178 | case R_PPC64_DTPREL16_LO: | |
8179 | case R_PPC64_DTPREL16_HI: | |
8180 | case R_PPC64_DTPREL16_HA: | |
8181 | case R_PPC64_DTPREL16_DS: | |
8182 | case R_PPC64_DTPREL16_LO_DS: | |
8183 | case R_PPC64_DTPREL16_HIGHER: | |
8184 | case R_PPC64_DTPREL16_HIGHERA: | |
8185 | case R_PPC64_DTPREL16_HIGHEST: | |
8186 | case R_PPC64_DTPREL16_HIGHESTA: | |
8187 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
8188 | break; | |
8189 | ||
e515b051 AM |
8190 | case R_PPC64_DTPMOD64: |
8191 | relocation = 1; | |
8192 | addend = 0; | |
8193 | goto dodyn; | |
8194 | ||
411e1bfb AM |
8195 | case R_PPC64_TPREL64: |
8196 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
8197 | goto dodyn; | |
8198 | ||
8199 | case R_PPC64_DTPREL64: | |
8200 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
8201 | /* Fall thru */ | |
8202 | ||
65f38f15 AM |
8203 | /* Relocations that may need to be propagated if this is a |
8204 | dynamic object. */ | |
04c9666a | 8205 | case R_PPC64_REL30: |
65f38f15 AM |
8206 | case R_PPC64_REL32: |
8207 | case R_PPC64_REL64: | |
8208 | case R_PPC64_ADDR14: | |
8209 | case R_PPC64_ADDR14_BRNTAKEN: | |
8210 | case R_PPC64_ADDR14_BRTAKEN: | |
8211 | case R_PPC64_ADDR16: | |
8212 | case R_PPC64_ADDR16_DS: | |
8213 | case R_PPC64_ADDR16_HA: | |
8214 | case R_PPC64_ADDR16_HI: | |
8215 | case R_PPC64_ADDR16_HIGHER: | |
8216 | case R_PPC64_ADDR16_HIGHERA: | |
8217 | case R_PPC64_ADDR16_HIGHEST: | |
8218 | case R_PPC64_ADDR16_HIGHESTA: | |
8219 | case R_PPC64_ADDR16_LO: | |
8220 | case R_PPC64_ADDR16_LO_DS: | |
8221 | case R_PPC64_ADDR24: | |
65f38f15 AM |
8222 | case R_PPC64_ADDR32: |
8223 | case R_PPC64_ADDR64: | |
8224 | case R_PPC64_UADDR16: | |
8225 | case R_PPC64_UADDR32: | |
8226 | case R_PPC64_UADDR64: | |
ec338859 AM |
8227 | /* r_symndx will be zero only for relocs against symbols |
8228 | from removed linkonce sections, or sections discarded by | |
8229 | a linker script. */ | |
411e1bfb | 8230 | dodyn: |
5d1634d7 AM |
8231 | if (r_symndx == 0) |
8232 | break; | |
8233 | /* Fall thru. */ | |
8234 | ||
0b13192e | 8235 | dodyn2: |
5d1634d7 | 8236 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
8237 | break; |
8238 | ||
41bd81ab AM |
8239 | if (NO_OPD_RELOCS && is_opd) |
8240 | break; | |
8241 | ||
65f38f15 | 8242 | if ((info->shared |
4e795f50 AM |
8243 | && (h == NULL |
8244 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8245 | || h->root.type != bfd_link_hash_undefweak) | |
411e1bfb | 8246 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 | 8247 | || (h != NULL |
09695f56 | 8248 | && !SYMBOL_CALLS_LOCAL (info, h)))) |
f4656909 AM |
8249 | || (ELIMINATE_COPY_RELOCS |
8250 | && !info->shared | |
65f38f15 AM |
8251 | && h != NULL |
8252 | && h->dynindx != -1 | |
8253 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
8254 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
8255 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
65f38f15 AM |
8256 | { |
8257 | Elf_Internal_Rela outrel; | |
b34976b6 | 8258 | bfd_boolean skip, relocate; |
65f38f15 | 8259 | asection *sreloc; |
947216bf | 8260 | bfd_byte *loc; |
1cf1f670 | 8261 | bfd_vma out_off; |
65f38f15 AM |
8262 | |
8263 | /* When generating a dynamic object, these relocations | |
8264 | are copied into the output file to be resolved at run | |
8265 | time. */ | |
8266 | ||
b34976b6 AM |
8267 | skip = FALSE; |
8268 | relocate = FALSE; | |
65f38f15 | 8269 | |
1cf1f670 AM |
8270 | out_off = _bfd_elf_section_offset (output_bfd, info, |
8271 | input_section, rel->r_offset); | |
8272 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 8273 | skip = TRUE; |
1cf1f670 | 8274 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 8275 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
8276 | out_off += (input_section->output_section->vma |
8277 | + input_section->output_offset); | |
8278 | outrel.r_offset = out_off; | |
411e1bfb | 8279 | outrel.r_addend = rel->r_addend; |
65f38f15 | 8280 | |
1cf1f670 AM |
8281 | /* Optimize unaligned reloc use. */ |
8282 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
8283 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
8284 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
8285 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
8286 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
8287 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
8288 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
8289 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
8290 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
8291 | ||
65f38f15 | 8292 | if (skip) |
0bb2d96a | 8293 | memset (&outrel, 0, sizeof outrel); |
65f38f15 | 8294 | else if (h != NULL |
586119b3 | 8295 | && !SYMBOL_REFERENCES_LOCAL (info, h) |
0b13192e AM |
8296 | && !is_opd |
8297 | && r_type != R_PPC64_TOC) | |
0bb2d96a | 8298 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); |
65f38f15 AM |
8299 | else |
8300 | { | |
41bd81ab AM |
8301 | /* This symbol is local, or marked to become local, |
8302 | or this is an opd section reloc which must point | |
8303 | at a local function. */ | |
65f38f15 | 8304 | outrel.r_addend += relocation; |
e86ce104 | 8305 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 8306 | { |
3fad3c7c | 8307 | if (is_opd && h != NULL) |
afbe61cf AM |
8308 | { |
8309 | /* Lie about opd entries. This case occurs | |
8310 | when building shared libraries and we | |
8311 | reference a function in another shared | |
3fad3c7c AM |
8312 | lib. The same thing happens for a weak |
8313 | definition in an application that's | |
8314 | overridden by a strong definition in a | |
8315 | shared lib. (I believe this is a generic | |
8316 | bug in binutils handling of weak syms.) | |
8317 | In these cases we won't use the opd | |
1e2f5b6e | 8318 | entry in this lib. */ |
b34976b6 | 8319 | unresolved_reloc = FALSE; |
afbe61cf | 8320 | } |
65f38f15 | 8321 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
8322 | |
8323 | /* We need to relocate .opd contents for ld.so. | |
8324 | Prelink also wants simple and consistent rules | |
8325 | for relocs. This make all RELATIVE relocs have | |
8326 | *r_offset equal to r_addend. */ | |
8327 | relocate = TRUE; | |
65f38f15 AM |
8328 | } |
8329 | else | |
8330 | { | |
8331 | long indx = 0; | |
8332 | ||
41bd81ab | 8333 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
8334 | ; |
8335 | else if (sec == NULL || sec->owner == NULL) | |
8336 | { | |
8337 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8338 | return FALSE; |
65f38f15 AM |
8339 | } |
8340 | else | |
8341 | { | |
8342 | asection *osec; | |
8343 | ||
8344 | osec = sec->output_section; | |
8345 | indx = elf_section_data (osec)->dynindx; | |
8346 | ||
8347 | /* We are turning this relocation into one | |
8348 | against a section symbol, so subtract out | |
8349 | the output section's address but not the | |
8350 | offset of the input section in the output | |
8351 | section. */ | |
8352 | outrel.r_addend -= osec->vma; | |
8353 | } | |
8354 | ||
8355 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
8356 | } | |
8357 | } | |
8358 | ||
8359 | sreloc = elf_section_data (input_section)->sreloc; | |
8360 | if (sreloc == NULL) | |
8361 | abort (); | |
8362 | ||
947216bf AM |
8363 | loc = sreloc->contents; |
8364 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
8365 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
8366 | ||
8367 | /* If this reloc is against an external symbol, it will | |
8368 | be computed at runtime, so there's no need to do | |
81407a69 AM |
8369 | anything now. However, for the sake of prelink ensure |
8370 | that the section contents are a known value. */ | |
65f38f15 | 8371 | if (! relocate) |
81407a69 AM |
8372 | { |
8373 | unresolved_reloc = FALSE; | |
8374 | /* The value chosen here is quite arbitrary as ld.so | |
8375 | ignores section contents except for the special | |
8376 | case of .opd where the contents might be accessed | |
8377 | before relocation. Choose zero, as that won't | |
8378 | cause reloc overflow. */ | |
8379 | relocation = 0; | |
8380 | addend = 0; | |
8381 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
8382 | to improve backward compatibility with older | |
8383 | versions of ld. */ | |
8384 | if (r_type == R_PPC64_ADDR64) | |
8385 | addend = outrel.r_addend; | |
8386 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
8387 | else if (ppc64_elf_howto_table[(int) r_type]->pc_relative) | |
000732f7 AM |
8388 | addend = (input_section->output_section->vma |
8389 | + input_section->output_offset | |
8390 | + rel->r_offset); | |
81407a69 | 8391 | } |
65f38f15 | 8392 | } |
5bd4f169 AM |
8393 | break; |
8394 | ||
65f38f15 AM |
8395 | case R_PPC64_COPY: |
8396 | case R_PPC64_GLOB_DAT: | |
8397 | case R_PPC64_JMP_SLOT: | |
8398 | case R_PPC64_RELATIVE: | |
8399 | /* We shouldn't ever see these dynamic relocs in relocatable | |
8400 | files. */ | |
ae9a127f | 8401 | /* Fall through. */ |
65f38f15 AM |
8402 | |
8403 | case R_PPC64_PLTGOT16: | |
8404 | case R_PPC64_PLTGOT16_DS: | |
8405 | case R_PPC64_PLTGOT16_HA: | |
8406 | case R_PPC64_PLTGOT16_HI: | |
8407 | case R_PPC64_PLTGOT16_LO: | |
8408 | case R_PPC64_PLTGOT16_LO_DS: | |
8409 | case R_PPC64_PLTREL32: | |
8410 | case R_PPC64_PLTREL64: | |
8411 | /* These ones haven't been implemented yet. */ | |
8412 | ||
8413 | (*_bfd_error_handler) | |
7b609f53 | 8414 | (_("%s: relocation %s is not supported for symbol %s."), |
65f38f15 AM |
8415 | bfd_archive_filename (input_bfd), |
8416 | ppc64_elf_howto_table[(int) r_type]->name, sym_name); | |
5bd4f169 AM |
8417 | |
8418 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8419 | ret = FALSE; |
5bd4f169 | 8420 | continue; |
65f38f15 | 8421 | } |
5bd4f169 | 8422 | |
65f38f15 AM |
8423 | /* Do any further special processing. */ |
8424 | switch (r_type) | |
8425 | { | |
8426 | default: | |
8427 | break; | |
8428 | ||
8429 | case R_PPC64_ADDR16_HA: | |
8430 | case R_PPC64_ADDR16_HIGHERA: | |
8431 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
8432 | case R_PPC64_GOT16_HA: |
8433 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
8434 | case R_PPC64_PLT16_HA: |
8435 | case R_PPC64_TOC16_HA: | |
8436 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
8437 | case R_PPC64_TPREL16_HA: |
8438 | case R_PPC64_DTPREL16_HA: | |
8439 | case R_PPC64_GOT_TLSGD16_HA: | |
8440 | case R_PPC64_GOT_TLSLD16_HA: | |
8441 | case R_PPC64_GOT_TPREL16_HA: | |
8442 | case R_PPC64_GOT_DTPREL16_HA: | |
8443 | case R_PPC64_TPREL16_HIGHER: | |
8444 | case R_PPC64_TPREL16_HIGHERA: | |
8445 | case R_PPC64_TPREL16_HIGHEST: | |
8446 | case R_PPC64_TPREL16_HIGHESTA: | |
8447 | case R_PPC64_DTPREL16_HIGHER: | |
8448 | case R_PPC64_DTPREL16_HIGHERA: | |
8449 | case R_PPC64_DTPREL16_HIGHEST: | |
8450 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
8451 | /* It's just possible that this symbol is a weak symbol |
8452 | that's not actually defined anywhere. In that case, | |
8453 | 'sec' would be NULL, and we should leave the symbol | |
8454 | alone (it will be set to zero elsewhere in the link). */ | |
8455 | if (sec != NULL) | |
e515b051 AM |
8456 | /* Add 0x10000 if sign bit in 0:15 is set. |
8457 | Bits 0:15 are not used. */ | |
8458 | addend += 0x8000; | |
65f38f15 AM |
8459 | break; |
8460 | ||
8461 | case R_PPC64_ADDR16_DS: | |
8462 | case R_PPC64_ADDR16_LO_DS: | |
8463 | case R_PPC64_GOT16_DS: | |
8464 | case R_PPC64_GOT16_LO_DS: | |
8465 | case R_PPC64_PLT16_LO_DS: | |
8466 | case R_PPC64_SECTOFF_DS: | |
8467 | case R_PPC64_SECTOFF_LO_DS: | |
8468 | case R_PPC64_TOC16_DS: | |
8469 | case R_PPC64_TOC16_LO_DS: | |
8470 | case R_PPC64_PLTGOT16_DS: | |
8471 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
8472 | case R_PPC64_GOT_TPREL16_DS: |
8473 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8474 | case R_PPC64_GOT_DTPREL16_DS: | |
8475 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8476 | case R_PPC64_TPREL16_DS: | |
8477 | case R_PPC64_TPREL16_LO_DS: | |
8478 | case R_PPC64_DTPREL16_DS: | |
8479 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
8480 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
8481 | mask = 3; | |
8482 | /* If this reloc is against an lq insn, then the value must be | |
8483 | a multiple of 16. This is somewhat of a hack, but the | |
8484 | "correct" way to do this by defining _DQ forms of all the | |
8485 | _DS relocs bloats all reloc switches in this file. It | |
8486 | doesn't seem to make much sense to use any of these relocs | |
8487 | in data, so testing the insn should be safe. */ | |
8488 | if ((insn & (0x3f << 26)) == (56 << 26)) | |
8489 | mask = 15; | |
8490 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
8491 | { |
8492 | (*_bfd_error_handler) | |
adadcc0c | 8493 | (_("%s: error: relocation %s not a multiple of %d"), |
65f38f15 | 8494 | bfd_archive_filename (input_bfd), |
adadcc0c AM |
8495 | ppc64_elf_howto_table[(int) r_type]->name, |
8496 | mask + 1); | |
65f38f15 | 8497 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8498 | ret = FALSE; |
65f38f15 AM |
8499 | continue; |
8500 | } | |
8501 | break; | |
721956f4 AM |
8502 | |
8503 | case R_PPC64_REL14: | |
8504 | case R_PPC64_REL14_BRNTAKEN: | |
8505 | case R_PPC64_REL14_BRTAKEN: | |
8506 | max_br_offset = 1 << 15; | |
8507 | goto branch_check; | |
8508 | ||
8509 | case R_PPC64_REL24: | |
8510 | max_br_offset = 1 << 25; | |
8511 | ||
8512 | branch_check: | |
ad8e1ba5 AM |
8513 | /* If the branch is out of reach or the TOC register needs |
8514 | adjusting, then redirect the call to the local stub for | |
8515 | this function. */ | |
411e1bfb | 8516 | from = (rel->r_offset |
721956f4 AM |
8517 | + input_section->output_offset |
8518 | + input_section->output_section->vma); | |
ad8e1ba5 AM |
8519 | if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset |
8520 | || (sec != NULL | |
8521 | && sec->output_section != NULL | |
8522 | && (htab->stub_group[sec->id].toc_off | |
8523 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 AM |
8524 | && (stub_entry = ppc_get_stub_entry (input_section, sec, h, |
8525 | rel, htab)) != NULL) | |
8526 | { | |
8527 | /* Munge up the value and addend so that we call the stub | |
8528 | rather than the procedure directly. */ | |
8529 | relocation = (stub_entry->stub_offset | |
8530 | + stub_entry->stub_sec->output_offset | |
8531 | + stub_entry->stub_sec->output_section->vma); | |
8532 | addend = 0; | |
8533 | } | |
8534 | break; | |
5bd4f169 AM |
8535 | } |
8536 | ||
239e1f3a AM |
8537 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
8538 | because such sections are not SEC_ALLOC and thus ld.so will | |
8539 | not process them. */ | |
65f38f15 | 8540 | if (unresolved_reloc |
239e1f3a | 8541 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
65f38f15 | 8542 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
9c07fe7c AM |
8543 | { |
8544 | (*_bfd_error_handler) | |
7b609f53 | 8545 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
9c07fe7c AM |
8546 | bfd_archive_filename (input_bfd), |
8547 | bfd_get_section_name (input_bfd, input_section), | |
8548 | (long) rel->r_offset, | |
7b609f53 | 8549 | ppc64_elf_howto_table[(int) r_type]->name, |
9c07fe7c | 8550 | h->root.root.string); |
b34976b6 | 8551 | ret = FALSE; |
9c07fe7c | 8552 | } |
5bd4f169 | 8553 | |
65f38f15 | 8554 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
8555 | input_bfd, |
8556 | input_section, | |
8557 | contents, | |
411e1bfb | 8558 | rel->r_offset, |
5bd4f169 AM |
8559 | relocation, |
8560 | addend); | |
8561 | ||
ef60b7ff | 8562 | if (r != bfd_reloc_ok) |
5bd4f169 | 8563 | { |
cd27b276 AM |
8564 | if (sym_name == NULL) |
8565 | sym_name = "(null)"; | |
8566 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 8567 | { |
cd27b276 AM |
8568 | if (warned) |
8569 | continue; | |
8570 | if (h != NULL | |
8571 | && h->root.type == bfd_link_hash_undefweak | |
65f38f15 | 8572 | && ppc64_elf_howto_table[(int) r_type]->pc_relative) |
5bd4f169 AM |
8573 | { |
8574 | /* Assume this is a call protected by other code that | |
8575 | detects the symbol is undefined. If this is the case, | |
8576 | we can safely ignore the overflow. If not, the | |
8577 | program is hosed anyway, and a little warning isn't | |
8578 | going to help. */ | |
8579 | ||
8580 | continue; | |
8581 | } | |
8582 | ||
ef60b7ff | 8583 | if (!((*info->callbacks->reloc_overflow) |
cd27b276 | 8584 | (info, sym_name, ppc64_elf_howto_table[(int) r_type]->name, |
411e1bfb | 8585 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 8586 | return FALSE; |
ef60b7ff AM |
8587 | } |
8588 | else | |
8589 | { | |
8590 | (*_bfd_error_handler) | |
7b609f53 | 8591 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
ef60b7ff AM |
8592 | bfd_archive_filename (input_bfd), |
8593 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 AM |
8594 | (long) rel->r_offset, |
8595 | ppc64_elf_howto_table[(int) r_type]->name, | |
8596 | sym_name, | |
8597 | (int) r); | |
b34976b6 | 8598 | ret = FALSE; |
ef60b7ff | 8599 | } |
5bd4f169 | 8600 | } |
5bd4f169 AM |
8601 | } |
8602 | ||
5bd4f169 AM |
8603 | return ret; |
8604 | } | |
8605 | ||
8606 | /* Finish up dynamic symbol handling. We set the contents of various | |
8607 | dynamic sections here. */ | |
8608 | ||
b34976b6 | 8609 | static bfd_boolean |
5bd4f169 AM |
8610 | ppc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
8611 | bfd *output_bfd; | |
8612 | struct bfd_link_info *info; | |
8613 | struct elf_link_hash_entry *h; | |
8614 | Elf_Internal_Sym *sym; | |
8615 | { | |
65f38f15 | 8616 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
8617 | bfd *dynobj; |
8618 | ||
65f38f15 AM |
8619 | htab = ppc_hash_table (info); |
8620 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 8621 | |
411e1bfb | 8622 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) |
5bd4f169 | 8623 | { |
411e1bfb | 8624 | struct plt_entry *ent; |
65f38f15 | 8625 | Elf_Internal_Rela rela; |
947216bf | 8626 | bfd_byte *loc; |
5bd4f169 | 8627 | |
411e1bfb AM |
8628 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
8629 | if (ent->plt.offset != (bfd_vma) -1) | |
8630 | { | |
8631 | /* This symbol has an entry in the procedure linkage | |
8632 | table. Set it up. */ | |
5bd4f169 | 8633 | |
411e1bfb AM |
8634 | if (htab->splt == NULL |
8635 | || htab->srelplt == NULL | |
8636 | || htab->sglink == NULL) | |
8637 | abort (); | |
5bd4f169 | 8638 | |
411e1bfb AM |
8639 | /* Create a JMP_SLOT reloc to inform the dynamic linker to |
8640 | fill in the PLT entry. */ | |
411e1bfb AM |
8641 | rela.r_offset = (htab->splt->output_section->vma |
8642 | + htab->splt->output_offset | |
8643 | + ent->plt.offset); | |
8644 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
8645 | rela.r_addend = ent->addend; | |
5bd4f169 | 8646 | |
411e1bfb AM |
8647 | loc = htab->srelplt->contents; |
8648 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
8649 | * sizeof (Elf64_External_Rela)); | |
8650 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
8651 | } | |
5bd4f169 AM |
8652 | } |
8653 | ||
8654 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
8655 | { | |
5bd4f169 | 8656 | Elf_Internal_Rela rela; |
947216bf | 8657 | bfd_byte *loc; |
5bd4f169 | 8658 | |
65f38f15 | 8659 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 8660 | |
65f38f15 AM |
8661 | if (h->dynindx == -1 |
8662 | || (h->root.type != bfd_link_hash_defined | |
8663 | && h->root.type != bfd_link_hash_defweak) | |
8664 | || htab->srelbss == NULL) | |
8665 | abort (); | |
5bd4f169 AM |
8666 | |
8667 | rela.r_offset = (h->root.u.def.value | |
8668 | + h->root.u.def.section->output_section->vma | |
8669 | + h->root.u.def.section->output_offset); | |
8670 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
8671 | rela.r_addend = 0; | |
947216bf AM |
8672 | loc = htab->srelbss->contents; |
8673 | loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 8674 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
8675 | } |
8676 | ||
5bd4f169 AM |
8677 | /* Mark some specially defined symbols as absolute. */ |
8678 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
8679 | sym->st_shndx = SHN_ABS; | |
8680 | ||
b34976b6 | 8681 | return TRUE; |
5bd4f169 AM |
8682 | } |
8683 | ||
65f38f15 AM |
8684 | /* Used to decide how to sort relocs in an optimal manner for the |
8685 | dynamic linker, before writing them out. */ | |
8686 | ||
8687 | static enum elf_reloc_type_class | |
8688 | ppc64_elf_reloc_type_class (rela) | |
8689 | const Elf_Internal_Rela *rela; | |
8690 | { | |
04c9666a | 8691 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 8692 | |
04c9666a | 8693 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 8694 | switch (r_type) |
65f38f15 AM |
8695 | { |
8696 | case R_PPC64_RELATIVE: | |
8697 | return reloc_class_relative; | |
8698 | case R_PPC64_JMP_SLOT: | |
8699 | return reloc_class_plt; | |
8700 | case R_PPC64_COPY: | |
8701 | return reloc_class_copy; | |
8702 | default: | |
8703 | return reloc_class_normal; | |
8704 | } | |
8705 | } | |
8706 | ||
5bd4f169 AM |
8707 | /* Finish up the dynamic sections. */ |
8708 | ||
b34976b6 | 8709 | static bfd_boolean |
5bd4f169 AM |
8710 | ppc64_elf_finish_dynamic_sections (output_bfd, info) |
8711 | bfd *output_bfd; | |
8712 | struct bfd_link_info *info; | |
8713 | { | |
65f38f15 AM |
8714 | struct ppc_link_hash_table *htab; |
8715 | bfd *dynobj; | |
5bd4f169 | 8716 | asection *sdyn; |
5bd4f169 | 8717 | |
65f38f15 AM |
8718 | htab = ppc_hash_table (info); |
8719 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
8720 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
8721 | ||
65f38f15 | 8722 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 8723 | { |
5bd4f169 AM |
8724 | Elf64_External_Dyn *dyncon, *dynconend; |
8725 | ||
65f38f15 AM |
8726 | if (sdyn == NULL || htab->sgot == NULL) |
8727 | abort (); | |
5bd4f169 AM |
8728 | |
8729 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
8730 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
8731 | for (; dyncon < dynconend; dyncon++) | |
8732 | { | |
8733 | Elf_Internal_Dyn dyn; | |
19397422 | 8734 | asection *s; |
5bd4f169 AM |
8735 | |
8736 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
8737 | ||
8738 | switch (dyn.d_tag) | |
8739 | { | |
65f38f15 AM |
8740 | default: |
8741 | continue; | |
5bd4f169 | 8742 | |
5d1634d7 | 8743 | case DT_PPC64_GLINK: |
6348e046 AM |
8744 | s = htab->sglink; |
8745 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
ad8e1ba5 AM |
8746 | /* We stupidly defined DT_PPC64_GLINK to be the start |
8747 | of glink rather than the first entry point, which is | |
8748 | what ld.so needs, and now have a bigger stub to | |
8749 | support automatic multiple TOCs. */ | |
8750 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
8751 | break; |
8752 | ||
19397422 AM |
8753 | case DT_PPC64_OPD: |
8754 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8755 | if (s == NULL) |
8756 | continue; | |
8757 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
8758 | break; |
8759 | ||
8760 | case DT_PPC64_OPDSZ: | |
8761 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8762 | if (s == NULL) |
8763 | continue; | |
8764 | dyn.d_un.d_val = s->_raw_size; | |
19397422 AM |
8765 | break; |
8766 | ||
65f38f15 | 8767 | case DT_PLTGOT: |
6348e046 AM |
8768 | s = htab->splt; |
8769 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
65f38f15 AM |
8770 | break; |
8771 | ||
8772 | case DT_JMPREL: | |
6348e046 AM |
8773 | s = htab->srelplt; |
8774 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
65f38f15 | 8775 | break; |
5bd4f169 | 8776 | |
65f38f15 | 8777 | case DT_PLTRELSZ: |
5d1634d7 AM |
8778 | dyn.d_un.d_val = htab->srelplt->_raw_size; |
8779 | break; | |
8780 | ||
8781 | case DT_RELASZ: | |
8782 | /* Don't count procedure linkage table relocs in the | |
8783 | overall reloc count. */ | |
6348e046 AM |
8784 | s = htab->srelplt; |
8785 | if (s == NULL) | |
8786 | continue; | |
8787 | dyn.d_un.d_val -= s->_raw_size; | |
8788 | break; | |
8789 | ||
8790 | case DT_RELA: | |
8791 | /* We may not be using the standard ELF linker script. | |
8792 | If .rela.plt is the first .rela section, we adjust | |
8793 | DT_RELA to not include it. */ | |
8794 | s = htab->srelplt; | |
8795 | if (s == NULL) | |
8796 | continue; | |
8797 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
8798 | continue; | |
8799 | dyn.d_un.d_ptr += s->_raw_size; | |
65f38f15 | 8800 | break; |
5bd4f169 | 8801 | } |
5bd4f169 | 8802 | |
65f38f15 | 8803 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 8804 | } |
5bd4f169 AM |
8805 | } |
8806 | ||
5d1634d7 AM |
8807 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
8808 | { | |
8809 | /* Fill in the first entry in the global offset table. | |
8810 | We use it to hold the link-time TOCbase. */ | |
8811 | bfd_put_64 (output_bfd, | |
60ee0d4a | 8812 | elf_gp (output_bfd) + TOC_BASE_OFF, |
5d1634d7 AM |
8813 | htab->sgot->contents); |
8814 | ||
8815 | /* Set .got entry size. */ | |
8816 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 8; | |
8817 | } | |
8818 | ||
8819 | if (htab->splt != NULL && htab->splt->_raw_size != 0) | |
8820 | { | |
8821 | /* Set .plt entry size. */ | |
8822 | elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize | |
8823 | = PLT_ENTRY_SIZE; | |
8824 | } | |
8825 | ||
b34976b6 | 8826 | return TRUE; |
5bd4f169 AM |
8827 | } |
8828 | ||
5bd4f169 | 8829 | #include "elf64-target.h" |