Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
86bbe32f | 2 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
4 | based on elf32-ppc.c by Ian Lance Taylor. | |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
5bd4f169 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
5bd4f169 | 17 | |
4ce794b7 AM |
18 | You should have received a copy of the GNU General Public License along |
19 | with this program; if not, write to the Free Software Foundation, Inc., | |
20 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
5bd4f169 | 21 | |
4ce794b7 AM |
22 | /* The 64-bit PowerPC ELF ABI may be found at |
23 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
24 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
5bd4f169 AM |
25 | |
26 | #include "bfd.h" | |
27 | #include "sysdep.h" | |
28 | #include "bfdlink.h" | |
29 | #include "libbfd.h" | |
30 | #include "elf-bfd.h" | |
04c9666a | 31 | #include "elf/ppc64.h" |
5d1634d7 | 32 | #include "elf64-ppc.h" |
5bd4f169 | 33 | |
805fc799 | 34 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
4ce794b7 | 35 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 36 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
4ce794b7 | 37 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 40 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
4ce794b7 | 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
5bd4f169 AM |
50 | |
51 | ||
ad8e1ba5 AM |
52 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec |
53 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
54 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
55 | #define TARGET_BIG_NAME "elf64-powerpc" | |
56 | #define ELF_ARCH bfd_arch_powerpc | |
57 | #define ELF_MACHINE_CODE EM_PPC64 | |
58 | #define ELF_MAXPAGESIZE 0x10000 | |
59 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
60 | ||
61 | #define elf_backend_want_got_sym 0 | |
62 | #define elf_backend_want_plt_sym 0 | |
63 | #define elf_backend_plt_alignment 3 | |
64 | #define elf_backend_plt_not_loaded 1 | |
65 | #define elf_backend_got_symbol_offset 0 | |
66 | #define elf_backend_got_header_size 8 | |
67 | #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE | |
68 | #define elf_backend_can_gc_sections 1 | |
69 | #define elf_backend_can_refcount 1 | |
70 | #define elf_backend_rela_normal 1 | |
71 | ||
72 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup | |
73 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data | |
74 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook | |
75 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
76 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free | |
77 | ||
78 | #define elf_backend_object_p ppc64_elf_object_p | |
79 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections | |
80 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
81 | #define elf_backend_check_relocs ppc64_elf_check_relocs | |
82 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook | |
83 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
84 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
85 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
86 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
87 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
88 | #define elf_backend_relocate_section ppc64_elf_relocate_section | |
89 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
90 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
91 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
92 | ||
5bd4f169 AM |
93 | /* The name of the dynamic interpreter. This is put in the .interp |
94 | section. */ | |
95 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
96 | ||
97 | /* The size in bytes of an entry in the procedure linkage table. */ | |
98 | #define PLT_ENTRY_SIZE 24 | |
99 | ||
100 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 101 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
102 | |
103 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
104 | #define TOC_BASE_OFF 0x8000 |
105 | ||
106 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
107 | #define TP_OFFSET 0x7000 | |
108 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 109 | |
ad8e1ba5 AM |
110 | /* .plt call stub instructions. The normal stub is like this, but |
111 | sometimes the .plt entry crosses a 64k boundary and we need to | |
112 | insert an addis to adjust r12. */ | |
113 | #define PLT_CALL_STUB_SIZE (7*4) | |
5d1634d7 AM |
114 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ |
115 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
116 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
117 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
118 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
119 | /* ld %r11,xxx+16@l(%r12) */ | |
120 | #define BCTR 0x4e800420 /* bctr */ | |
121 | ||
5d1634d7 | 122 | |
ad8e1ba5 AM |
123 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
124 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
125 | ||
126 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
127 | ||
128 | /* glink call stub instructions. We enter with the index in R0, and the | |
129 | address of glink entry in CTR. From that, we can calculate PLT0. */ | |
130 | #define GLINK_CALL_STUB_SIZE (16*4) | |
131 | #define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */ | |
132 | #define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */ | |
133 | #define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */ | |
134 | #define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */ | |
135 | #define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */ | |
136 | #define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */ | |
137 | #define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */ | |
138 | /* sub %r12,%r12,%r11 */ | |
139 | #define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */ | |
140 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ | |
141 | /* ld %r11,xxx@l(%r12) */ | |
142 | #define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */ | |
143 | /* ld %r2,8(%r12) */ | |
144 | /* mtctr %r11 */ | |
145 | /* ld %r11,16(%r12) */ | |
146 | /* bctr */ | |
5d1634d7 AM |
147 | |
148 | /* Pad with this. */ | |
149 | #define NOP 0x60000000 | |
150 | ||
721956f4 AM |
151 | /* Some other nops. */ |
152 | #define CROR_151515 0x4def7b82 | |
153 | #define CROR_313131 0x4ffffb82 | |
154 | ||
cedb70c5 | 155 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
156 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
157 | #define B_DOT 0x48000000 /* b . */ | |
158 | ||
159 | /* After that, we need two instructions to load the index, followed by | |
160 | a branch. */ | |
161 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 162 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 163 | |
82bd7b59 AM |
164 | /* Instructions to save and restore floating point regs. */ |
165 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ | |
166 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
167 | #define BLR 0x4e800020 /* blr */ | |
168 | ||
41bd81ab AM |
169 | /* Since .opd is an array of descriptors and each entry will end up |
170 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
171 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 172 | relocate .opd without reloc entries. */ |
41bd81ab AM |
173 | #ifndef NO_OPD_RELOCS |
174 | #define NO_OPD_RELOCS 0 | |
175 | #endif | |
5bd4f169 | 176 | \f |
f5e87a1d | 177 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 178 | |
5bd4f169 | 179 | /* Relocation HOWTO's. */ |
04c9666a | 180 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
181 | |
182 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
183 | /* This reloc does nothing. */ | |
184 | HOWTO (R_PPC64_NONE, /* type */ | |
185 | 0, /* rightshift */ | |
411e1bfb AM |
186 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
187 | 32, /* bitsize */ | |
b34976b6 | 188 | FALSE, /* pc_relative */ |
5bd4f169 | 189 | 0, /* bitpos */ |
f5e87a1d | 190 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
191 | bfd_elf_generic_reloc, /* special_function */ |
192 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 193 | FALSE, /* partial_inplace */ |
d006db6c | 194 | 0, /* src_mask */ |
5bd4f169 | 195 | 0, /* dst_mask */ |
b34976b6 | 196 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
197 | |
198 | /* A standard 32 bit relocation. */ | |
199 | HOWTO (R_PPC64_ADDR32, /* type */ | |
200 | 0, /* rightshift */ | |
201 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
202 | 32, /* bitsize */ | |
b34976b6 | 203 | FALSE, /* pc_relative */ |
5bd4f169 AM |
204 | 0, /* bitpos */ |
205 | complain_overflow_bitfield, /* complain_on_overflow */ | |
206 | bfd_elf_generic_reloc, /* special_function */ | |
207 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 208 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
209 | 0, /* src_mask */ |
210 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 211 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
212 | |
213 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
214 | FIXME: we don't check that, we just clear them. */ | |
215 | HOWTO (R_PPC64_ADDR24, /* type */ | |
216 | 0, /* rightshift */ | |
217 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
218 | 26, /* bitsize */ | |
b34976b6 | 219 | FALSE, /* pc_relative */ |
5bd4f169 AM |
220 | 0, /* bitpos */ |
221 | complain_overflow_bitfield, /* complain_on_overflow */ | |
222 | bfd_elf_generic_reloc, /* special_function */ | |
223 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 224 | FALSE, /* partial_inplace */ |
d006db6c | 225 | 0, /* src_mask */ |
f5e87a1d | 226 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 227 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
228 | |
229 | /* A standard 16 bit relocation. */ | |
230 | HOWTO (R_PPC64_ADDR16, /* type */ | |
231 | 0, /* rightshift */ | |
232 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
233 | 16, /* bitsize */ | |
b34976b6 | 234 | FALSE, /* pc_relative */ |
5bd4f169 AM |
235 | 0, /* bitpos */ |
236 | complain_overflow_bitfield, /* complain_on_overflow */ | |
237 | bfd_elf_generic_reloc, /* special_function */ | |
238 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 239 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
240 | 0, /* src_mask */ |
241 | 0xffff, /* dst_mask */ | |
b34976b6 | 242 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
243 | |
244 | /* A 16 bit relocation without overflow. */ | |
245 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
246 | 0, /* rightshift */ | |
247 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
248 | 16, /* bitsize */ | |
b34976b6 | 249 | FALSE, /* pc_relative */ |
5bd4f169 AM |
250 | 0, /* bitpos */ |
251 | complain_overflow_dont,/* complain_on_overflow */ | |
252 | bfd_elf_generic_reloc, /* special_function */ | |
253 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 254 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
255 | 0, /* src_mask */ |
256 | 0xffff, /* dst_mask */ | |
b34976b6 | 257 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
258 | |
259 | /* Bits 16-31 of an address. */ | |
260 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
261 | 16, /* rightshift */ | |
262 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 16, /* bitsize */ | |
b34976b6 | 264 | FALSE, /* pc_relative */ |
5bd4f169 AM |
265 | 0, /* bitpos */ |
266 | complain_overflow_dont, /* complain_on_overflow */ | |
267 | bfd_elf_generic_reloc, /* special_function */ | |
268 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 269 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
270 | 0, /* src_mask */ |
271 | 0xffff, /* dst_mask */ | |
b34976b6 | 272 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
273 | |
274 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
275 | bits, treated as a signed number, is negative. */ | |
276 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
277 | 16, /* rightshift */ | |
278 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
279 | 16, /* bitsize */ | |
b34976b6 | 280 | FALSE, /* pc_relative */ |
5bd4f169 AM |
281 | 0, /* bitpos */ |
282 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 283 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 284 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 285 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
286 | 0, /* src_mask */ |
287 | 0xffff, /* dst_mask */ | |
b34976b6 | 288 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
289 | |
290 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
291 | FIXME: we don't check that, we just clear them. */ | |
292 | HOWTO (R_PPC64_ADDR14, /* type */ | |
293 | 0, /* rightshift */ | |
294 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
295 | 16, /* bitsize */ | |
b34976b6 | 296 | FALSE, /* pc_relative */ |
5bd4f169 AM |
297 | 0, /* bitpos */ |
298 | complain_overflow_bitfield, /* complain_on_overflow */ | |
299 | bfd_elf_generic_reloc, /* special_function */ | |
300 | "R_PPC64_ADDR14", /* name */ | |
b34976b6 | 301 | FALSE, /* partial_inplace */ |
d006db6c | 302 | 0, /* src_mask */ |
f5e87a1d | 303 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 304 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
305 | |
306 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
307 | indicate that the branch is expected to be taken. The lower two | |
308 | bits must be zero. */ | |
309 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
310 | 0, /* rightshift */ | |
311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
312 | 16, /* bitsize */ | |
b34976b6 | 313 | FALSE, /* pc_relative */ |
5bd4f169 AM |
314 | 0, /* bitpos */ |
315 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 316 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 317 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 318 | FALSE, /* partial_inplace */ |
d006db6c | 319 | 0, /* src_mask */ |
f5e87a1d | 320 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 321 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
322 | |
323 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
324 | indicate that the branch is not expected to be taken. The lower | |
325 | two bits must be zero. */ | |
326 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
327 | 0, /* rightshift */ | |
328 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
329 | 16, /* bitsize */ | |
b34976b6 | 330 | FALSE, /* pc_relative */ |
5bd4f169 AM |
331 | 0, /* bitpos */ |
332 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 333 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 334 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 335 | FALSE, /* partial_inplace */ |
d006db6c | 336 | 0, /* src_mask */ |
f5e87a1d | 337 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 338 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
339 | |
340 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
341 | HOWTO (R_PPC64_REL24, /* type */ | |
342 | 0, /* rightshift */ | |
343 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
344 | 26, /* bitsize */ | |
b34976b6 | 345 | TRUE, /* pc_relative */ |
5bd4f169 AM |
346 | 0, /* bitpos */ |
347 | complain_overflow_signed, /* complain_on_overflow */ | |
348 | bfd_elf_generic_reloc, /* special_function */ | |
349 | "R_PPC64_REL24", /* name */ | |
b34976b6 | 350 | FALSE, /* partial_inplace */ |
d006db6c | 351 | 0, /* src_mask */ |
f5e87a1d | 352 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 353 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
354 | |
355 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
356 | HOWTO (R_PPC64_REL14, /* type */ | |
357 | 0, /* rightshift */ | |
358 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
359 | 16, /* bitsize */ | |
b34976b6 | 360 | TRUE, /* pc_relative */ |
5bd4f169 AM |
361 | 0, /* bitpos */ |
362 | complain_overflow_signed, /* complain_on_overflow */ | |
363 | bfd_elf_generic_reloc, /* special_function */ | |
364 | "R_PPC64_REL14", /* name */ | |
b34976b6 | 365 | FALSE, /* partial_inplace */ |
d006db6c | 366 | 0, /* src_mask */ |
f5e87a1d | 367 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 368 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
369 | |
370 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
371 | the branch is expected to be taken. The lower two bits must be | |
372 | zero. */ | |
373 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
374 | 0, /* rightshift */ | |
375 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
376 | 16, /* bitsize */ | |
b34976b6 | 377 | TRUE, /* pc_relative */ |
5bd4f169 AM |
378 | 0, /* bitpos */ |
379 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 380 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 381 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 382 | FALSE, /* partial_inplace */ |
d006db6c | 383 | 0, /* src_mask */ |
f5e87a1d | 384 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 385 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
386 | |
387 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
388 | the branch is not expected to be taken. The lower two bits must | |
389 | be zero. */ | |
390 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
391 | 0, /* rightshift */ | |
392 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
393 | 16, /* bitsize */ | |
b34976b6 | 394 | TRUE, /* pc_relative */ |
5bd4f169 AM |
395 | 0, /* bitpos */ |
396 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 397 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 398 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 399 | FALSE, /* partial_inplace */ |
d006db6c | 400 | 0, /* src_mask */ |
f5e87a1d | 401 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 402 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
403 | |
404 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
405 | symbol. */ | |
406 | HOWTO (R_PPC64_GOT16, /* type */ | |
407 | 0, /* rightshift */ | |
408 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
409 | 16, /* bitsize */ | |
b34976b6 | 410 | FALSE, /* pc_relative */ |
5bd4f169 AM |
411 | 0, /* bitpos */ |
412 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 413 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 414 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 415 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
416 | 0, /* src_mask */ |
417 | 0xffff, /* dst_mask */ | |
b34976b6 | 418 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
419 | |
420 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
421 | the symbol. */ | |
422 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
423 | 0, /* rightshift */ | |
424 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 16, /* bitsize */ | |
b34976b6 | 426 | FALSE, /* pc_relative */ |
5bd4f169 AM |
427 | 0, /* bitpos */ |
428 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 429 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 430 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 431 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
432 | 0, /* src_mask */ |
433 | 0xffff, /* dst_mask */ | |
b34976b6 | 434 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
435 | |
436 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
437 | the symbol. */ | |
438 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
439 | 16, /* rightshift */ | |
440 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
441 | 16, /* bitsize */ | |
b34976b6 | 442 | FALSE, /* pc_relative */ |
5bd4f169 AM |
443 | 0, /* bitpos */ |
444 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 445 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 446 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 447 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
448 | 0, /* src_mask */ |
449 | 0xffff, /* dst_mask */ | |
b34976b6 | 450 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
451 | |
452 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
453 | the symbol. */ | |
454 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
455 | 16, /* rightshift */ | |
456 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
457 | 16, /* bitsize */ | |
b34976b6 | 458 | FALSE, /* pc_relative */ |
5bd4f169 AM |
459 | 0, /* bitpos */ |
460 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 461 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 462 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 463 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
464 | 0, /* src_mask */ |
465 | 0xffff, /* dst_mask */ | |
b34976b6 | 466 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
467 | |
468 | /* This is used only by the dynamic linker. The symbol should exist | |
469 | both in the object being run and in some shared library. The | |
470 | dynamic linker copies the data addressed by the symbol from the | |
471 | shared library into the object, because the object being | |
472 | run has to have the data at some particular address. */ | |
473 | HOWTO (R_PPC64_COPY, /* type */ | |
474 | 0, /* rightshift */ | |
f5e87a1d AM |
475 | 0, /* this one is variable size */ |
476 | 0, /* bitsize */ | |
b34976b6 | 477 | FALSE, /* pc_relative */ |
5bd4f169 | 478 | 0, /* bitpos */ |
f5e87a1d AM |
479 | complain_overflow_dont, /* complain_on_overflow */ |
480 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 481 | "R_PPC64_COPY", /* name */ |
b34976b6 | 482 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
483 | 0, /* src_mask */ |
484 | 0, /* dst_mask */ | |
b34976b6 | 485 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
486 | |
487 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
488 | entries. */ | |
489 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
490 | 0, /* rightshift */ | |
491 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
492 | 64, /* bitsize */ | |
b34976b6 | 493 | FALSE, /* pc_relative */ |
5bd4f169 AM |
494 | 0, /* bitpos */ |
495 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 496 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 497 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 498 | FALSE, /* partial_inplace */ |
5bd4f169 | 499 | 0, /* src_mask */ |
f5e87a1d | 500 | ONES (64), /* dst_mask */ |
b34976b6 | 501 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
502 | |
503 | /* Created by the link editor. Marks a procedure linkage table | |
504 | entry for a symbol. */ | |
505 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
506 | 0, /* rightshift */ | |
507 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
508 | 0, /* bitsize */ | |
b34976b6 | 509 | FALSE, /* pc_relative */ |
5bd4f169 AM |
510 | 0, /* bitpos */ |
511 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 512 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 513 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 514 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
515 | 0, /* src_mask */ |
516 | 0, /* dst_mask */ | |
b34976b6 | 517 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
518 | |
519 | /* Used only by the dynamic linker. When the object is run, this | |
520 | doubleword64 is set to the load address of the object, plus the | |
521 | addend. */ | |
522 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
523 | 0, /* rightshift */ | |
524 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
525 | 64, /* bitsize */ | |
b34976b6 | 526 | FALSE, /* pc_relative */ |
5bd4f169 AM |
527 | 0, /* bitpos */ |
528 | complain_overflow_dont, /* complain_on_overflow */ | |
529 | bfd_elf_generic_reloc, /* special_function */ | |
530 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 531 | FALSE, /* partial_inplace */ |
5bd4f169 | 532 | 0, /* src_mask */ |
f5e87a1d | 533 | ONES (64), /* dst_mask */ |
b34976b6 | 534 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
535 | |
536 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
537 | HOWTO (R_PPC64_UADDR32, /* type */ | |
538 | 0, /* rightshift */ | |
539 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
540 | 32, /* bitsize */ | |
b34976b6 | 541 | FALSE, /* pc_relative */ |
5bd4f169 AM |
542 | 0, /* bitpos */ |
543 | complain_overflow_bitfield, /* complain_on_overflow */ | |
544 | bfd_elf_generic_reloc, /* special_function */ | |
545 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 546 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
547 | 0, /* src_mask */ |
548 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 549 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
550 | |
551 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
552 | HOWTO (R_PPC64_UADDR16, /* type */ | |
553 | 0, /* rightshift */ | |
554 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
555 | 16, /* bitsize */ | |
b34976b6 | 556 | FALSE, /* pc_relative */ |
5bd4f169 AM |
557 | 0, /* bitpos */ |
558 | complain_overflow_bitfield, /* complain_on_overflow */ | |
559 | bfd_elf_generic_reloc, /* special_function */ | |
560 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 561 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
562 | 0, /* src_mask */ |
563 | 0xffff, /* dst_mask */ | |
b34976b6 | 564 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
565 | |
566 | /* 32-bit PC relative. */ | |
567 | HOWTO (R_PPC64_REL32, /* type */ | |
568 | 0, /* rightshift */ | |
569 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
570 | 32, /* bitsize */ | |
b34976b6 | 571 | TRUE, /* pc_relative */ |
5bd4f169 | 572 | 0, /* bitpos */ |
cedb70c5 | 573 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
574 | complain_overflow_signed, /* complain_on_overflow */ |
575 | bfd_elf_generic_reloc, /* special_function */ | |
576 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 577 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
578 | 0, /* src_mask */ |
579 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 580 | TRUE), /* pcrel_offset */ |
5bd4f169 | 581 | |
10ed1bba | 582 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
583 | HOWTO (R_PPC64_PLT32, /* type */ |
584 | 0, /* rightshift */ | |
585 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
586 | 32, /* bitsize */ | |
b34976b6 | 587 | FALSE, /* pc_relative */ |
5bd4f169 AM |
588 | 0, /* bitpos */ |
589 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 590 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 591 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 592 | FALSE, /* partial_inplace */ |
5bd4f169 | 593 | 0, /* src_mask */ |
f5e87a1d | 594 | 0xffffffff, /* dst_mask */ |
b34976b6 | 595 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
596 | |
597 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
598 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
599 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
600 | 0, /* rightshift */ | |
601 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
602 | 32, /* bitsize */ | |
b34976b6 | 603 | TRUE, /* pc_relative */ |
5bd4f169 AM |
604 | 0, /* bitpos */ |
605 | complain_overflow_signed, /* complain_on_overflow */ | |
606 | bfd_elf_generic_reloc, /* special_function */ | |
607 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 608 | FALSE, /* partial_inplace */ |
5bd4f169 | 609 | 0, /* src_mask */ |
f5e87a1d | 610 | 0xffffffff, /* dst_mask */ |
b34976b6 | 611 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
612 | |
613 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
614 | the symbol. */ | |
615 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
616 | 0, /* rightshift */ | |
617 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
618 | 16, /* bitsize */ | |
b34976b6 | 619 | FALSE, /* pc_relative */ |
5bd4f169 AM |
620 | 0, /* bitpos */ |
621 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 622 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 623 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 624 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
625 | 0, /* src_mask */ |
626 | 0xffff, /* dst_mask */ | |
b34976b6 | 627 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
628 | |
629 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
630 | the symbol. */ | |
631 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
632 | 16, /* rightshift */ | |
633 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
634 | 16, /* bitsize */ | |
b34976b6 | 635 | FALSE, /* pc_relative */ |
5bd4f169 AM |
636 | 0, /* bitpos */ |
637 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 638 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 639 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 640 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
641 | 0, /* src_mask */ |
642 | 0xffff, /* dst_mask */ | |
b34976b6 | 643 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
644 | |
645 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
646 | the symbol. */ | |
647 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
648 | 16, /* rightshift */ | |
649 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
650 | 16, /* bitsize */ | |
b34976b6 | 651 | FALSE, /* pc_relative */ |
5bd4f169 AM |
652 | 0, /* bitpos */ |
653 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 654 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 655 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 656 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
657 | 0, /* src_mask */ |
658 | 0xffff, /* dst_mask */ | |
b34976b6 | 659 | FALSE), /* pcrel_offset */ |
5bd4f169 | 660 | |
c061c2d8 | 661 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
662 | HOWTO (R_PPC64_SECTOFF, /* type */ |
663 | 0, /* rightshift */ | |
c061c2d8 AM |
664 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
665 | 16, /* bitsize */ | |
b34976b6 | 666 | FALSE, /* pc_relative */ |
5bd4f169 AM |
667 | 0, /* bitpos */ |
668 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 669 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 670 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 671 | FALSE, /* partial_inplace */ |
5bd4f169 | 672 | 0, /* src_mask */ |
c061c2d8 | 673 | 0xffff, /* dst_mask */ |
b34976b6 | 674 | FALSE), /* pcrel_offset */ |
5bd4f169 | 675 | |
c061c2d8 | 676 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
677 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
678 | 0, /* rightshift */ | |
679 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
680 | 16, /* bitsize */ | |
b34976b6 | 681 | FALSE, /* pc_relative */ |
5bd4f169 AM |
682 | 0, /* bitpos */ |
683 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 684 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 685 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 686 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
687 | 0, /* src_mask */ |
688 | 0xffff, /* dst_mask */ | |
b34976b6 | 689 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
690 | |
691 | /* 16-bit upper half section relative relocation. */ | |
692 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
693 | 16, /* rightshift */ | |
694 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
695 | 16, /* bitsize */ | |
b34976b6 | 696 | FALSE, /* pc_relative */ |
5bd4f169 AM |
697 | 0, /* bitpos */ |
698 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 699 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 700 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 701 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
702 | 0, /* src_mask */ |
703 | 0xffff, /* dst_mask */ | |
b34976b6 | 704 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
705 | |
706 | /* 16-bit upper half adjusted section relative relocation. */ | |
707 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
708 | 16, /* rightshift */ | |
709 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
710 | 16, /* bitsize */ | |
b34976b6 | 711 | FALSE, /* pc_relative */ |
5bd4f169 AM |
712 | 0, /* bitpos */ |
713 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 714 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 715 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 716 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
717 | 0, /* src_mask */ |
718 | 0xffff, /* dst_mask */ | |
b34976b6 | 719 | FALSE), /* pcrel_offset */ |
5bd4f169 | 720 | |
04c9666a AM |
721 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
722 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
723 | 2, /* rightshift */ |
724 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
725 | 30, /* bitsize */ | |
b34976b6 | 726 | TRUE, /* pc_relative */ |
5bd4f169 AM |
727 | 0, /* bitpos */ |
728 | complain_overflow_dont, /* complain_on_overflow */ | |
729 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 730 | "R_PPC64_REL30", /* name */ |
b34976b6 | 731 | FALSE, /* partial_inplace */ |
d006db6c | 732 | 0, /* src_mask */ |
5bd4f169 | 733 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 734 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
735 | |
736 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
737 | ||
738 | /* A standard 64-bit relocation. */ | |
739 | HOWTO (R_PPC64_ADDR64, /* type */ | |
740 | 0, /* rightshift */ | |
741 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
742 | 64, /* bitsize */ | |
b34976b6 | 743 | FALSE, /* pc_relative */ |
5bd4f169 AM |
744 | 0, /* bitpos */ |
745 | complain_overflow_dont, /* complain_on_overflow */ | |
746 | bfd_elf_generic_reloc, /* special_function */ | |
747 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 748 | FALSE, /* partial_inplace */ |
5bd4f169 | 749 | 0, /* src_mask */ |
f5e87a1d | 750 | ONES (64), /* dst_mask */ |
b34976b6 | 751 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
752 | |
753 | /* The bits 32-47 of an address. */ | |
754 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
755 | 32, /* rightshift */ | |
756 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
757 | 16, /* bitsize */ | |
b34976b6 | 758 | FALSE, /* pc_relative */ |
5bd4f169 AM |
759 | 0, /* bitpos */ |
760 | complain_overflow_dont, /* complain_on_overflow */ | |
761 | bfd_elf_generic_reloc, /* special_function */ | |
762 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 763 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
764 | 0, /* src_mask */ |
765 | 0xffff, /* dst_mask */ | |
b34976b6 | 766 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
767 | |
768 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
769 | 16 bits, treated as a signed number, is negative. */ | |
770 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
771 | 32, /* rightshift */ | |
772 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
773 | 16, /* bitsize */ | |
b34976b6 | 774 | FALSE, /* pc_relative */ |
5bd4f169 AM |
775 | 0, /* bitpos */ |
776 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 777 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 778 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 779 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
780 | 0, /* src_mask */ |
781 | 0xffff, /* dst_mask */ | |
b34976b6 | 782 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
783 | |
784 | /* The bits 48-63 of an address. */ | |
785 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
786 | 48, /* rightshift */ | |
787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
788 | 16, /* bitsize */ | |
b34976b6 | 789 | FALSE, /* pc_relative */ |
5bd4f169 AM |
790 | 0, /* bitpos */ |
791 | complain_overflow_dont, /* complain_on_overflow */ | |
792 | bfd_elf_generic_reloc, /* special_function */ | |
793 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 794 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
795 | 0, /* src_mask */ |
796 | 0xffff, /* dst_mask */ | |
b34976b6 | 797 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
798 | |
799 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
800 | 16 bits, treated as a signed number, is negative. */ | |
801 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
802 | 48, /* rightshift */ | |
803 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
804 | 16, /* bitsize */ | |
b34976b6 | 805 | FALSE, /* pc_relative */ |
5bd4f169 AM |
806 | 0, /* bitpos */ |
807 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 808 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 809 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 810 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
811 | 0, /* src_mask */ |
812 | 0xffff, /* dst_mask */ | |
b34976b6 | 813 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
814 | |
815 | /* Like ADDR64, but may be unaligned. */ | |
816 | HOWTO (R_PPC64_UADDR64, /* type */ | |
817 | 0, /* rightshift */ | |
818 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
819 | 64, /* bitsize */ | |
b34976b6 | 820 | FALSE, /* pc_relative */ |
5bd4f169 AM |
821 | 0, /* bitpos */ |
822 | complain_overflow_dont, /* complain_on_overflow */ | |
823 | bfd_elf_generic_reloc, /* special_function */ | |
824 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 825 | FALSE, /* partial_inplace */ |
5bd4f169 | 826 | 0, /* src_mask */ |
f5e87a1d | 827 | ONES (64), /* dst_mask */ |
b34976b6 | 828 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
829 | |
830 | /* 64-bit relative relocation. */ | |
831 | HOWTO (R_PPC64_REL64, /* type */ | |
832 | 0, /* rightshift */ | |
833 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
834 | 64, /* bitsize */ | |
b34976b6 | 835 | TRUE, /* pc_relative */ |
5bd4f169 AM |
836 | 0, /* bitpos */ |
837 | complain_overflow_dont, /* complain_on_overflow */ | |
838 | bfd_elf_generic_reloc, /* special_function */ | |
839 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 840 | FALSE, /* partial_inplace */ |
5bd4f169 | 841 | 0, /* src_mask */ |
f5e87a1d | 842 | ONES (64), /* dst_mask */ |
b34976b6 | 843 | TRUE), /* pcrel_offset */ |
5bd4f169 | 844 | |
cedb70c5 | 845 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
846 | HOWTO (R_PPC64_PLT64, /* type */ |
847 | 0, /* rightshift */ | |
848 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
849 | 64, /* bitsize */ | |
b34976b6 | 850 | FALSE, /* pc_relative */ |
5bd4f169 AM |
851 | 0, /* bitpos */ |
852 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 853 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 854 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 855 | FALSE, /* partial_inplace */ |
5bd4f169 | 856 | 0, /* src_mask */ |
f5e87a1d | 857 | ONES (64), /* dst_mask */ |
b34976b6 | 858 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
859 | |
860 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
861 | table. */ | |
862 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
863 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
864 | 0, /* rightshift */ | |
865 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
866 | 64, /* bitsize */ | |
b34976b6 | 867 | TRUE, /* pc_relative */ |
5bd4f169 AM |
868 | 0, /* bitpos */ |
869 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 870 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 871 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 872 | FALSE, /* partial_inplace */ |
5bd4f169 | 873 | 0, /* src_mask */ |
f5e87a1d | 874 | ONES (64), /* dst_mask */ |
b34976b6 | 875 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
876 | |
877 | /* 16 bit TOC-relative relocation. */ | |
878 | ||
879 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
880 | HOWTO (R_PPC64_TOC16, /* type */ | |
881 | 0, /* rightshift */ | |
882 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
883 | 16, /* bitsize */ | |
b34976b6 | 884 | FALSE, /* pc_relative */ |
5bd4f169 AM |
885 | 0, /* bitpos */ |
886 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 887 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 888 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 889 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
890 | 0, /* src_mask */ |
891 | 0xffff, /* dst_mask */ | |
b34976b6 | 892 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
893 | |
894 | /* 16 bit TOC-relative relocation without overflow. */ | |
895 | ||
896 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
897 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
898 | 0, /* rightshift */ | |
899 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
900 | 16, /* bitsize */ | |
b34976b6 | 901 | FALSE, /* pc_relative */ |
5bd4f169 AM |
902 | 0, /* bitpos */ |
903 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 904 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 905 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 906 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
907 | 0, /* src_mask */ |
908 | 0xffff, /* dst_mask */ | |
b34976b6 | 909 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
910 | |
911 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
912 | ||
913 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
914 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
915 | 16, /* rightshift */ | |
916 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
917 | 16, /* bitsize */ | |
b34976b6 | 918 | FALSE, /* pc_relative */ |
5bd4f169 AM |
919 | 0, /* bitpos */ |
920 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 921 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 922 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 923 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
924 | 0, /* src_mask */ |
925 | 0xffff, /* dst_mask */ | |
b34976b6 | 926 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
927 | |
928 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
929 | contents of the low 16 bits, treated as a signed number, is | |
930 | negative. */ | |
931 | ||
932 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
933 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
934 | 16, /* rightshift */ | |
935 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
936 | 16, /* bitsize */ | |
b34976b6 | 937 | FALSE, /* pc_relative */ |
5bd4f169 AM |
938 | 0, /* bitpos */ |
939 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 940 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 941 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 942 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
943 | 0, /* src_mask */ |
944 | 0xffff, /* dst_mask */ | |
b34976b6 | 945 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
946 | |
947 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
948 | ||
949 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
950 | HOWTO (R_PPC64_TOC, /* type */ | |
951 | 0, /* rightshift */ | |
952 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
953 | 64, /* bitsize */ | |
b34976b6 | 954 | FALSE, /* pc_relative */ |
5bd4f169 AM |
955 | 0, /* bitpos */ |
956 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 957 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 958 | "R_PPC64_TOC", /* name */ |
b34976b6 | 959 | FALSE, /* partial_inplace */ |
5bd4f169 | 960 | 0, /* src_mask */ |
f5e87a1d | 961 | ONES (64), /* dst_mask */ |
b34976b6 | 962 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
963 | |
964 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
965 | value to relocate may (!) refer to a PLT entry which the link | |
966 | editor (a) may replace with the symbol value. If the link editor | |
967 | is unable to fully resolve the symbol, it may (b) create a PLT | |
968 | entry and store the address to the new PLT entry in the GOT. | |
969 | This permits lazy resolution of function symbols at run time. | |
970 | The link editor may also skip all of this and just (c) emit a | |
971 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
972 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
973 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
974 | 0, /* rightshift */ | |
975 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
976 | 16, /* bitsize */ | |
b34976b6 | 977 | FALSE, /* pc_relative */ |
5bd4f169 AM |
978 | 0, /* bitpos */ |
979 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 980 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
981 | "R_PPC64_PLTGOT16", /* name */ |
982 | FALSE, /* partial_inplace */ | |
983 | 0, /* src_mask */ | |
984 | 0xffff, /* dst_mask */ | |
985 | FALSE), /* pcrel_offset */ | |
986 | ||
987 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
988 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
989 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
990 | 0, /* rightshift */ | |
991 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
992 | 16, /* bitsize */ | |
993 | FALSE, /* pc_relative */ | |
994 | 0, /* bitpos */ | |
995 | complain_overflow_dont, /* complain_on_overflow */ | |
996 | ppc64_elf_unhandled_reloc, /* special_function */ | |
997 | "R_PPC64_PLTGOT16_LO", /* name */ | |
998 | FALSE, /* partial_inplace */ | |
999 | 0, /* src_mask */ | |
1000 | 0xffff, /* dst_mask */ | |
1001 | FALSE), /* pcrel_offset */ | |
1002 | ||
1003 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
1004 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
1005 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
1006 | 16, /* rightshift */ | |
1007 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1008 | 16, /* bitsize */ | |
1009 | FALSE, /* pc_relative */ | |
1010 | 0, /* bitpos */ | |
1011 | complain_overflow_dont, /* complain_on_overflow */ | |
1012 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1013 | "R_PPC64_PLTGOT16_HI", /* name */ | |
1014 | FALSE, /* partial_inplace */ | |
1015 | 0, /* src_mask */ | |
1016 | 0xffff, /* dst_mask */ | |
1017 | FALSE), /* pcrel_offset */ | |
1018 | ||
1019 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
1020 | 1 if the contents of the low 16 bits, treated as a signed number, | |
1021 | is negative. */ | |
1022 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
1023 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
1024 | 16, /* rightshift */ | |
1025 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1026 | 16, /* bitsize */ | |
1027 | FALSE, /* pc_relative */ | |
1028 | 0, /* bitpos */ | |
1029 | complain_overflow_dont,/* complain_on_overflow */ | |
1030 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1031 | "R_PPC64_PLTGOT16_HA", /* name */ | |
1032 | FALSE, /* partial_inplace */ | |
1033 | 0, /* src_mask */ | |
1034 | 0xffff, /* dst_mask */ | |
1035 | FALSE), /* pcrel_offset */ | |
1036 | ||
1037 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
1038 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
1039 | 0, /* rightshift */ | |
1040 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1041 | 16, /* bitsize */ | |
1042 | FALSE, /* pc_relative */ | |
1043 | 0, /* bitpos */ | |
1044 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1045 | bfd_elf_generic_reloc, /* special_function */ | |
1046 | "R_PPC64_ADDR16_DS", /* name */ | |
1047 | FALSE, /* partial_inplace */ | |
1048 | 0, /* src_mask */ | |
1049 | 0xfffc, /* dst_mask */ | |
1050 | FALSE), /* pcrel_offset */ | |
1051 | ||
1052 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1053 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1054 | 0, /* rightshift */ | |
1055 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1056 | 16, /* bitsize */ | |
1057 | FALSE, /* pc_relative */ | |
1058 | 0, /* bitpos */ | |
1059 | complain_overflow_dont,/* complain_on_overflow */ | |
1060 | bfd_elf_generic_reloc, /* special_function */ | |
1061 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1062 | FALSE, /* partial_inplace */ | |
1063 | 0, /* src_mask */ | |
1064 | 0xfffc, /* dst_mask */ | |
1065 | FALSE), /* pcrel_offset */ | |
1066 | ||
1067 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1068 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1069 | 0, /* rightshift */ | |
1070 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1071 | 16, /* bitsize */ | |
1072 | FALSE, /* pc_relative */ | |
1073 | 0, /* bitpos */ | |
1074 | complain_overflow_signed, /* complain_on_overflow */ | |
1075 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1076 | "R_PPC64_GOT16_DS", /* name */ | |
1077 | FALSE, /* partial_inplace */ | |
1078 | 0, /* src_mask */ | |
1079 | 0xfffc, /* dst_mask */ | |
1080 | FALSE), /* pcrel_offset */ | |
1081 | ||
1082 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1083 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
1084 | 0, /* rightshift */ | |
1085 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1086 | 16, /* bitsize */ | |
1087 | FALSE, /* pc_relative */ | |
1088 | 0, /* bitpos */ | |
1089 | complain_overflow_dont, /* complain_on_overflow */ | |
1090 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1091 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1092 | FALSE, /* partial_inplace */ | |
1093 | 0, /* src_mask */ | |
1094 | 0xfffc, /* dst_mask */ | |
1095 | FALSE), /* pcrel_offset */ | |
1096 | ||
1097 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1098 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
1099 | 0, /* rightshift */ | |
1100 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1101 | 16, /* bitsize */ | |
1102 | FALSE, /* pc_relative */ | |
1103 | 0, /* bitpos */ | |
1104 | complain_overflow_dont, /* complain_on_overflow */ | |
1105 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1106 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1107 | FALSE, /* partial_inplace */ | |
1108 | 0, /* src_mask */ | |
1109 | 0xfffc, /* dst_mask */ | |
1110 | FALSE), /* pcrel_offset */ | |
1111 | ||
1112 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1113 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
1114 | 0, /* rightshift */ | |
1115 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1116 | 16, /* bitsize */ | |
1117 | FALSE, /* pc_relative */ | |
1118 | 0, /* bitpos */ | |
1119 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1120 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1121 | "R_PPC64_SECTOFF_DS", /* name */ | |
1122 | FALSE, /* partial_inplace */ | |
1123 | 0, /* src_mask */ | |
1124 | 0xfffc, /* dst_mask */ | |
1125 | FALSE), /* pcrel_offset */ | |
1126 | ||
1127 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1128 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
1129 | 0, /* rightshift */ | |
1130 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1131 | 16, /* bitsize */ | |
1132 | FALSE, /* pc_relative */ | |
1133 | 0, /* bitpos */ | |
1134 | complain_overflow_dont, /* complain_on_overflow */ | |
1135 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1136 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1137 | FALSE, /* partial_inplace */ | |
1138 | 0, /* src_mask */ | |
1139 | 0xfffc, /* dst_mask */ | |
1140 | FALSE), /* pcrel_offset */ | |
1141 | ||
1142 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1143 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
1144 | 0, /* rightshift */ | |
1145 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1146 | 16, /* bitsize */ | |
1147 | FALSE, /* pc_relative */ | |
1148 | 0, /* bitpos */ | |
1149 | complain_overflow_signed, /* complain_on_overflow */ | |
1150 | ppc64_elf_toc_reloc, /* special_function */ | |
1151 | "R_PPC64_TOC16_DS", /* name */ | |
1152 | FALSE, /* partial_inplace */ | |
1153 | 0, /* src_mask */ | |
1154 | 0xfffc, /* dst_mask */ | |
1155 | FALSE), /* pcrel_offset */ | |
1156 | ||
1157 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1158 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
1159 | 0, /* rightshift */ | |
1160 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1161 | 16, /* bitsize */ | |
1162 | FALSE, /* pc_relative */ | |
1163 | 0, /* bitpos */ | |
1164 | complain_overflow_dont, /* complain_on_overflow */ | |
1165 | ppc64_elf_toc_reloc, /* special_function */ | |
1166 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1167 | FALSE, /* partial_inplace */ | |
1168 | 0, /* src_mask */ | |
1169 | 0xfffc, /* dst_mask */ | |
1170 | FALSE), /* pcrel_offset */ | |
1171 | ||
1172 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1173 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1174 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1175 | 0, /* rightshift */ | |
1176 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1177 | 16, /* bitsize */ | |
1178 | FALSE, /* pc_relative */ | |
1179 | 0, /* bitpos */ | |
1180 | complain_overflow_signed, /* complain_on_overflow */ | |
1181 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1182 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1183 | FALSE, /* partial_inplace */ | |
1184 | 0, /* src_mask */ | |
1185 | 0xfffc, /* dst_mask */ | |
1186 | FALSE), /* pcrel_offset */ | |
1187 | ||
1188 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1189 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1190 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1191 | 0, /* rightshift */ | |
1192 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1193 | 16, /* bitsize */ | |
1194 | FALSE, /* pc_relative */ | |
1195 | 0, /* bitpos */ | |
1196 | complain_overflow_dont, /* complain_on_overflow */ | |
1197 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1198 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1199 | FALSE, /* partial_inplace */ | |
1200 | 0, /* src_mask */ | |
1201 | 0xfffc, /* dst_mask */ | |
1202 | FALSE), /* pcrel_offset */ | |
1203 | ||
1204 | /* Marker reloc for TLS. */ | |
1205 | HOWTO (R_PPC64_TLS, | |
1206 | 0, /* rightshift */ | |
1207 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1208 | 32, /* bitsize */ | |
1209 | FALSE, /* pc_relative */ | |
1210 | 0, /* bitpos */ | |
1211 | complain_overflow_dont, /* complain_on_overflow */ | |
1212 | bfd_elf_generic_reloc, /* special_function */ | |
1213 | "R_PPC64_TLS", /* name */ | |
1214 | FALSE, /* partial_inplace */ | |
1215 | 0, /* src_mask */ | |
1216 | 0, /* dst_mask */ | |
1217 | FALSE), /* pcrel_offset */ | |
1218 | ||
1219 | /* Computes the load module index of the load module that contains the | |
1220 | definition of its TLS sym. */ | |
1221 | HOWTO (R_PPC64_DTPMOD64, | |
1222 | 0, /* rightshift */ | |
1223 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1224 | 64, /* bitsize */ | |
1225 | FALSE, /* pc_relative */ | |
1226 | 0, /* bitpos */ | |
1227 | complain_overflow_dont, /* complain_on_overflow */ | |
1228 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1229 | "R_PPC64_DTPMOD64", /* name */ | |
1230 | FALSE, /* partial_inplace */ | |
1231 | 0, /* src_mask */ | |
1232 | ONES (64), /* dst_mask */ | |
1233 | FALSE), /* pcrel_offset */ | |
1234 | ||
1235 | /* Computes a dtv-relative displacement, the difference between the value | |
1236 | of sym+add and the base address of the thread-local storage block that | |
1237 | contains the definition of sym, minus 0x8000. */ | |
1238 | HOWTO (R_PPC64_DTPREL64, | |
1239 | 0, /* rightshift */ | |
1240 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1241 | 64, /* bitsize */ | |
1242 | FALSE, /* pc_relative */ | |
1243 | 0, /* bitpos */ | |
1244 | complain_overflow_dont, /* complain_on_overflow */ | |
1245 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1246 | "R_PPC64_DTPREL64", /* name */ | |
1247 | FALSE, /* partial_inplace */ | |
1248 | 0, /* src_mask */ | |
1249 | ONES (64), /* dst_mask */ | |
1250 | FALSE), /* pcrel_offset */ | |
1251 | ||
1252 | /* A 16 bit dtprel reloc. */ | |
1253 | HOWTO (R_PPC64_DTPREL16, | |
1254 | 0, /* rightshift */ | |
1255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1256 | 16, /* bitsize */ | |
1257 | FALSE, /* pc_relative */ | |
1258 | 0, /* bitpos */ | |
1259 | complain_overflow_signed, /* complain_on_overflow */ | |
1260 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1261 | "R_PPC64_DTPREL16", /* name */ | |
1262 | FALSE, /* partial_inplace */ | |
1263 | 0, /* src_mask */ | |
1264 | 0xffff, /* dst_mask */ | |
1265 | FALSE), /* pcrel_offset */ | |
1266 | ||
1267 | /* Like DTPREL16, but no overflow. */ | |
1268 | HOWTO (R_PPC64_DTPREL16_LO, | |
1269 | 0, /* rightshift */ | |
1270 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1271 | 16, /* bitsize */ | |
1272 | FALSE, /* pc_relative */ | |
1273 | 0, /* bitpos */ | |
1274 | complain_overflow_dont, /* complain_on_overflow */ | |
1275 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1276 | "R_PPC64_DTPREL16_LO", /* name */ | |
1277 | FALSE, /* partial_inplace */ | |
1278 | 0, /* src_mask */ | |
1279 | 0xffff, /* dst_mask */ | |
1280 | FALSE), /* pcrel_offset */ | |
1281 | ||
1282 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1283 | HOWTO (R_PPC64_DTPREL16_HI, | |
1284 | 16, /* rightshift */ | |
1285 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1286 | 16, /* bitsize */ | |
1287 | FALSE, /* pc_relative */ | |
1288 | 0, /* bitpos */ | |
1289 | complain_overflow_dont, /* complain_on_overflow */ | |
1290 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1291 | "R_PPC64_DTPREL16_HI", /* name */ | |
1292 | FALSE, /* partial_inplace */ | |
1293 | 0, /* src_mask */ | |
1294 | 0xffff, /* dst_mask */ | |
1295 | FALSE), /* pcrel_offset */ | |
1296 | ||
1297 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1298 | HOWTO (R_PPC64_DTPREL16_HA, | |
1299 | 16, /* rightshift */ | |
1300 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1301 | 16, /* bitsize */ | |
1302 | FALSE, /* pc_relative */ | |
1303 | 0, /* bitpos */ | |
1304 | complain_overflow_dont, /* complain_on_overflow */ | |
1305 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1306 | "R_PPC64_DTPREL16_HA", /* name */ | |
1307 | FALSE, /* partial_inplace */ | |
1308 | 0, /* src_mask */ | |
1309 | 0xffff, /* dst_mask */ | |
1310 | FALSE), /* pcrel_offset */ | |
1311 | ||
1312 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1313 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1314 | 32, /* rightshift */ | |
1315 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1316 | 16, /* bitsize */ | |
1317 | FALSE, /* pc_relative */ | |
1318 | 0, /* bitpos */ | |
1319 | complain_overflow_dont, /* complain_on_overflow */ | |
1320 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1321 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
1322 | FALSE, /* partial_inplace */ | |
1323 | 0, /* src_mask */ | |
1324 | 0xffff, /* dst_mask */ | |
1325 | FALSE), /* pcrel_offset */ | |
1326 | ||
1327 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1328 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1329 | 32, /* rightshift */ | |
1330 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1331 | 16, /* bitsize */ | |
1332 | FALSE, /* pc_relative */ | |
1333 | 0, /* bitpos */ | |
1334 | complain_overflow_dont, /* complain_on_overflow */ | |
1335 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1336 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
1337 | FALSE, /* partial_inplace */ | |
1338 | 0, /* src_mask */ | |
1339 | 0xffff, /* dst_mask */ | |
1340 | FALSE), /* pcrel_offset */ | |
1341 | ||
1342 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1343 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1344 | 48, /* rightshift */ | |
1345 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1346 | 16, /* bitsize */ | |
1347 | FALSE, /* pc_relative */ | |
1348 | 0, /* bitpos */ | |
1349 | complain_overflow_dont, /* complain_on_overflow */ | |
1350 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1351 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
1352 | FALSE, /* partial_inplace */ | |
1353 | 0, /* src_mask */ | |
1354 | 0xffff, /* dst_mask */ | |
1355 | FALSE), /* pcrel_offset */ | |
1356 | ||
1357 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1358 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1359 | 48, /* rightshift */ | |
1360 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1361 | 16, /* bitsize */ | |
1362 | FALSE, /* pc_relative */ | |
1363 | 0, /* bitpos */ | |
1364 | complain_overflow_dont, /* complain_on_overflow */ | |
1365 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1366 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
1367 | FALSE, /* partial_inplace */ | |
1368 | 0, /* src_mask */ | |
1369 | 0xffff, /* dst_mask */ | |
1370 | FALSE), /* pcrel_offset */ | |
1371 | ||
1372 | /* Like DTPREL16, but for insns with a DS field. */ | |
1373 | HOWTO (R_PPC64_DTPREL16_DS, | |
1374 | 0, /* rightshift */ | |
1375 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1376 | 16, /* bitsize */ | |
1377 | FALSE, /* pc_relative */ | |
1378 | 0, /* bitpos */ | |
1379 | complain_overflow_signed, /* complain_on_overflow */ | |
1380 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1381 | "R_PPC64_DTPREL16_DS", /* name */ | |
1382 | FALSE, /* partial_inplace */ | |
1383 | 0, /* src_mask */ | |
1384 | 0xfffc, /* dst_mask */ | |
1385 | FALSE), /* pcrel_offset */ | |
1386 | ||
1387 | /* Like DTPREL16_DS, but no overflow. */ | |
1388 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1389 | 0, /* rightshift */ | |
1390 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1391 | 16, /* bitsize */ | |
1392 | FALSE, /* pc_relative */ | |
1393 | 0, /* bitpos */ | |
1394 | complain_overflow_dont, /* complain_on_overflow */ | |
1395 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1396 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
1397 | FALSE, /* partial_inplace */ | |
1398 | 0, /* src_mask */ | |
1399 | 0xfffc, /* dst_mask */ | |
1400 | FALSE), /* pcrel_offset */ | |
1401 | ||
1402 | /* Computes a tp-relative displacement, the difference between the value of | |
1403 | sym+add and the value of the thread pointer (r13). */ | |
1404 | HOWTO (R_PPC64_TPREL64, | |
1405 | 0, /* rightshift */ | |
1406 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1407 | 64, /* bitsize */ | |
1408 | FALSE, /* pc_relative */ | |
1409 | 0, /* bitpos */ | |
1410 | complain_overflow_dont, /* complain_on_overflow */ | |
1411 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1412 | "R_PPC64_TPREL64", /* name */ | |
1413 | FALSE, /* partial_inplace */ | |
1414 | 0, /* src_mask */ | |
1415 | ONES (64), /* dst_mask */ | |
1416 | FALSE), /* pcrel_offset */ | |
1417 | ||
1418 | /* A 16 bit tprel reloc. */ | |
1419 | HOWTO (R_PPC64_TPREL16, | |
1420 | 0, /* rightshift */ | |
1421 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1422 | 16, /* bitsize */ | |
1423 | FALSE, /* pc_relative */ | |
1424 | 0, /* bitpos */ | |
1425 | complain_overflow_signed, /* complain_on_overflow */ | |
1426 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1427 | "R_PPC64_TPREL16", /* name */ | |
1428 | FALSE, /* partial_inplace */ | |
1429 | 0, /* src_mask */ | |
1430 | 0xffff, /* dst_mask */ | |
1431 | FALSE), /* pcrel_offset */ | |
1432 | ||
1433 | /* Like TPREL16, but no overflow. */ | |
1434 | HOWTO (R_PPC64_TPREL16_LO, | |
1435 | 0, /* rightshift */ | |
1436 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1437 | 16, /* bitsize */ | |
1438 | FALSE, /* pc_relative */ | |
1439 | 0, /* bitpos */ | |
1440 | complain_overflow_dont, /* complain_on_overflow */ | |
1441 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1442 | "R_PPC64_TPREL16_LO", /* name */ | |
1443 | FALSE, /* partial_inplace */ | |
1444 | 0, /* src_mask */ | |
1445 | 0xffff, /* dst_mask */ | |
1446 | FALSE), /* pcrel_offset */ | |
1447 | ||
1448 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1449 | HOWTO (R_PPC64_TPREL16_HI, | |
1450 | 16, /* rightshift */ | |
1451 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1452 | 16, /* bitsize */ | |
1453 | FALSE, /* pc_relative */ | |
1454 | 0, /* bitpos */ | |
1455 | complain_overflow_dont, /* complain_on_overflow */ | |
1456 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1457 | "R_PPC64_TPREL16_HI", /* name */ | |
1458 | FALSE, /* partial_inplace */ | |
1459 | 0, /* src_mask */ | |
1460 | 0xffff, /* dst_mask */ | |
1461 | FALSE), /* pcrel_offset */ | |
1462 | ||
1463 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1464 | HOWTO (R_PPC64_TPREL16_HA, | |
1465 | 16, /* rightshift */ | |
1466 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1467 | 16, /* bitsize */ | |
1468 | FALSE, /* pc_relative */ | |
1469 | 0, /* bitpos */ | |
1470 | complain_overflow_dont, /* complain_on_overflow */ | |
1471 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1472 | "R_PPC64_TPREL16_HA", /* name */ | |
1473 | FALSE, /* partial_inplace */ | |
1474 | 0, /* src_mask */ | |
1475 | 0xffff, /* dst_mask */ | |
1476 | FALSE), /* pcrel_offset */ | |
1477 | ||
1478 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1479 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1480 | 32, /* rightshift */ | |
1481 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1482 | 16, /* bitsize */ | |
1483 | FALSE, /* pc_relative */ | |
1484 | 0, /* bitpos */ | |
1485 | complain_overflow_dont, /* complain_on_overflow */ | |
1486 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1487 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
1488 | FALSE, /* partial_inplace */ | |
1489 | 0, /* src_mask */ | |
1490 | 0xffff, /* dst_mask */ | |
1491 | FALSE), /* pcrel_offset */ | |
1492 | ||
1493 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1494 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1495 | 32, /* rightshift */ | |
1496 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1497 | 16, /* bitsize */ | |
1498 | FALSE, /* pc_relative */ | |
1499 | 0, /* bitpos */ | |
1500 | complain_overflow_dont, /* complain_on_overflow */ | |
1501 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1502 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
1503 | FALSE, /* partial_inplace */ | |
1504 | 0, /* src_mask */ | |
1505 | 0xffff, /* dst_mask */ | |
1506 | FALSE), /* pcrel_offset */ | |
1507 | ||
1508 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1509 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1510 | 48, /* rightshift */ | |
1511 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1512 | 16, /* bitsize */ | |
1513 | FALSE, /* pc_relative */ | |
1514 | 0, /* bitpos */ | |
1515 | complain_overflow_dont, /* complain_on_overflow */ | |
1516 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1517 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
1518 | FALSE, /* partial_inplace */ | |
1519 | 0, /* src_mask */ | |
1520 | 0xffff, /* dst_mask */ | |
1521 | FALSE), /* pcrel_offset */ | |
1522 | ||
1523 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1524 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1525 | 48, /* rightshift */ | |
1526 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1527 | 16, /* bitsize */ | |
1528 | FALSE, /* pc_relative */ | |
1529 | 0, /* bitpos */ | |
1530 | complain_overflow_dont, /* complain_on_overflow */ | |
1531 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1532 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
1533 | FALSE, /* partial_inplace */ | |
1534 | 0, /* src_mask */ | |
1535 | 0xffff, /* dst_mask */ | |
1536 | FALSE), /* pcrel_offset */ | |
1537 | ||
1538 | /* Like TPREL16, but for insns with a DS field. */ | |
1539 | HOWTO (R_PPC64_TPREL16_DS, | |
1540 | 0, /* rightshift */ | |
1541 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1542 | 16, /* bitsize */ | |
1543 | FALSE, /* pc_relative */ | |
1544 | 0, /* bitpos */ | |
1545 | complain_overflow_signed, /* complain_on_overflow */ | |
1546 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1547 | "R_PPC64_TPREL16_DS", /* name */ | |
1548 | FALSE, /* partial_inplace */ | |
1549 | 0, /* src_mask */ | |
1550 | 0xfffc, /* dst_mask */ | |
1551 | FALSE), /* pcrel_offset */ | |
1552 | ||
1553 | /* Like TPREL16_DS, but no overflow. */ | |
1554 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1555 | 0, /* rightshift */ | |
1556 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1557 | 16, /* bitsize */ | |
1558 | FALSE, /* pc_relative */ | |
1559 | 0, /* bitpos */ | |
1560 | complain_overflow_dont, /* complain_on_overflow */ | |
1561 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1562 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
1563 | FALSE, /* partial_inplace */ | |
1564 | 0, /* src_mask */ | |
1565 | 0xfffc, /* dst_mask */ | |
1566 | FALSE), /* pcrel_offset */ | |
1567 | ||
1568 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1569 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1570 | to the first entry relative to the TOC base (r2). */ | |
1571 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1572 | 0, /* rightshift */ | |
1573 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1574 | 16, /* bitsize */ | |
1575 | FALSE, /* pc_relative */ | |
1576 | 0, /* bitpos */ | |
1577 | complain_overflow_signed, /* complain_on_overflow */ | |
1578 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1579 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1580 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1581 | 0, /* src_mask */ |
1582 | 0xffff, /* dst_mask */ | |
b34976b6 | 1583 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1584 | |
411e1bfb AM |
1585 | /* Like GOT_TLSGD16, but no overflow. */ |
1586 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1587 | 0, /* rightshift */ |
1588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1589 | 16, /* bitsize */ | |
b34976b6 | 1590 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1591 | 0, /* bitpos */ |
1592 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1593 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1594 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1595 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1596 | 0, /* src_mask */ |
1597 | 0xffff, /* dst_mask */ | |
b34976b6 | 1598 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1599 | |
411e1bfb AM |
1600 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1601 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1602 | 16, /* rightshift */ |
1603 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1604 | 16, /* bitsize */ | |
b34976b6 | 1605 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1606 | 0, /* bitpos */ |
1607 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1608 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1609 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1610 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1611 | 0, /* src_mask */ |
1612 | 0xffff, /* dst_mask */ | |
b34976b6 | 1613 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1614 | |
411e1bfb AM |
1615 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1616 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1617 | 16, /* rightshift */ |
1618 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1619 | 16, /* bitsize */ | |
b34976b6 | 1620 | FALSE, /* pc_relative */ |
5bd4f169 | 1621 | 0, /* bitpos */ |
411e1bfb | 1622 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1623 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1624 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
b34976b6 | 1625 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1626 | 0, /* src_mask */ |
1627 | 0xffff, /* dst_mask */ | |
b34976b6 | 1628 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1629 | |
411e1bfb AM |
1630 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1631 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1632 | first entry relative to the TOC base (r2). */ | |
1633 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1634 | 0, /* rightshift */ |
1635 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1636 | 16, /* bitsize */ | |
b34976b6 | 1637 | FALSE, /* pc_relative */ |
5bd4f169 | 1638 | 0, /* bitpos */ |
411e1bfb AM |
1639 | complain_overflow_signed, /* complain_on_overflow */ |
1640 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1641 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1642 | FALSE, /* partial_inplace */ |
d006db6c | 1643 | 0, /* src_mask */ |
411e1bfb | 1644 | 0xffff, /* dst_mask */ |
b34976b6 | 1645 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1646 | |
411e1bfb AM |
1647 | /* Like GOT_TLSLD16, but no overflow. */ |
1648 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1649 | 0, /* rightshift */ |
1650 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1651 | 16, /* bitsize */ | |
b34976b6 | 1652 | FALSE, /* pc_relative */ |
5bd4f169 | 1653 | 0, /* bitpos */ |
411e1bfb AM |
1654 | complain_overflow_dont, /* complain_on_overflow */ |
1655 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1656 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1657 | FALSE, /* partial_inplace */ |
d006db6c | 1658 | 0, /* src_mask */ |
411e1bfb | 1659 | 0xffff, /* dst_mask */ |
b34976b6 | 1660 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1661 | |
411e1bfb AM |
1662 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1663 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1664 | 16, /* rightshift */ | |
5bd4f169 AM |
1665 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1666 | 16, /* bitsize */ | |
b34976b6 | 1667 | FALSE, /* pc_relative */ |
5bd4f169 | 1668 | 0, /* bitpos */ |
411e1bfb | 1669 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1670 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1671 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1672 | FALSE, /* partial_inplace */ |
d006db6c | 1673 | 0, /* src_mask */ |
411e1bfb | 1674 | 0xffff, /* dst_mask */ |
b34976b6 | 1675 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1676 | |
411e1bfb AM |
1677 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1678 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1679 | 16, /* rightshift */ | |
5bd4f169 AM |
1680 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1681 | 16, /* bitsize */ | |
b34976b6 | 1682 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1683 | 0, /* bitpos */ |
1684 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1685 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1686 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
b34976b6 | 1687 | FALSE, /* partial_inplace */ |
d006db6c | 1688 | 0, /* src_mask */ |
411e1bfb | 1689 | 0xffff, /* dst_mask */ |
b34976b6 | 1690 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1691 | |
411e1bfb AM |
1692 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1693 | the offset to the entry relative to the TOC base (r2). */ | |
1694 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1695 | 0, /* rightshift */ |
1696 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1697 | 16, /* bitsize */ | |
b34976b6 | 1698 | FALSE, /* pc_relative */ |
5bd4f169 | 1699 | 0, /* bitpos */ |
411e1bfb | 1700 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1701 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1702 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1703 | FALSE, /* partial_inplace */ |
d006db6c | 1704 | 0, /* src_mask */ |
5bd4f169 | 1705 | 0xfffc, /* dst_mask */ |
b34976b6 | 1706 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1707 | |
411e1bfb AM |
1708 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1709 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1710 | 0, /* rightshift */ |
c061c2d8 AM |
1711 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1712 | 16, /* bitsize */ | |
b34976b6 | 1713 | FALSE, /* pc_relative */ |
5bd4f169 | 1714 | 0, /* bitpos */ |
411e1bfb AM |
1715 | complain_overflow_dont, /* complain_on_overflow */ |
1716 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1717 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1718 | FALSE, /* partial_inplace */ |
d006db6c | 1719 | 0, /* src_mask */ |
c061c2d8 | 1720 | 0xfffc, /* dst_mask */ |
b34976b6 | 1721 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1722 | |
411e1bfb AM |
1723 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1724 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1725 | 16, /* rightshift */ | |
5bd4f169 AM |
1726 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1727 | 16, /* bitsize */ | |
b34976b6 | 1728 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1729 | 0, /* bitpos */ |
1730 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1731 | ppc64_elf_unhandled_reloc, /* special_function */ |
1732 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1733 | FALSE, /* partial_inplace */ |
d006db6c | 1734 | 0, /* src_mask */ |
411e1bfb | 1735 | 0xffff, /* dst_mask */ |
b34976b6 | 1736 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1737 | |
411e1bfb AM |
1738 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1739 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1740 | 16, /* rightshift */ | |
1741 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1742 | 16, /* bitsize */ | |
1743 | FALSE, /* pc_relative */ | |
1744 | 0, /* bitpos */ | |
1745 | complain_overflow_dont, /* complain_on_overflow */ | |
1746 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1747 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1748 | FALSE, /* partial_inplace */ | |
1749 | 0, /* src_mask */ | |
1750 | 0xffff, /* dst_mask */ | |
1751 | FALSE), /* pcrel_offset */ | |
1752 | ||
1753 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1754 | offset to the entry relative to the TOC base (r2). */ | |
1755 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1756 | 0, /* rightshift */ |
1757 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1758 | 16, /* bitsize */ | |
b34976b6 | 1759 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1760 | 0, /* bitpos */ |
1761 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1762 | ppc64_elf_unhandled_reloc, /* special_function */ |
1763 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1764 | FALSE, /* partial_inplace */ |
d006db6c | 1765 | 0, /* src_mask */ |
ad8e1ba5 | 1766 | 0xfffc, /* dst_mask */ |
b34976b6 | 1767 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1768 | |
411e1bfb AM |
1769 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1770 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1771 | 0, /* rightshift */ |
1772 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1773 | 16, /* bitsize */ | |
b34976b6 | 1774 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1775 | 0, /* bitpos */ |
1776 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1777 | ppc64_elf_unhandled_reloc, /* special_function */ |
1778 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1779 | FALSE, /* partial_inplace */ |
d006db6c | 1780 | 0, /* src_mask */ |
ad8e1ba5 | 1781 | 0xfffc, /* dst_mask */ |
b34976b6 | 1782 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1783 | |
411e1bfb AM |
1784 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1785 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1786 | 16, /* rightshift */ | |
5bd4f169 AM |
1787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1788 | 16, /* bitsize */ | |
b34976b6 | 1789 | FALSE, /* pc_relative */ |
5bd4f169 | 1790 | 0, /* bitpos */ |
411e1bfb | 1791 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1792 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1793 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1794 | FALSE, /* partial_inplace */ |
d006db6c | 1795 | 0, /* src_mask */ |
411e1bfb | 1796 | 0xffff, /* dst_mask */ |
b34976b6 | 1797 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1798 | |
411e1bfb AM |
1799 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1800 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1801 | 16, /* rightshift */ | |
5bd4f169 AM |
1802 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1803 | 16, /* bitsize */ | |
b34976b6 | 1804 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1805 | 0, /* bitpos */ |
1806 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1807 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1808 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1809 | FALSE, /* partial_inplace */ |
d006db6c | 1810 | 0, /* src_mask */ |
411e1bfb | 1811 | 0xffff, /* dst_mask */ |
b34976b6 | 1812 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1813 | |
1814 | /* GNU extension to record C++ vtable hierarchy. */ | |
1815 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1816 | 0, /* rightshift */ | |
1817 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1818 | 0, /* bitsize */ | |
b34976b6 | 1819 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1820 | 0, /* bitpos */ |
1821 | complain_overflow_dont, /* complain_on_overflow */ | |
1822 | NULL, /* special_function */ | |
1823 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1824 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1825 | 0, /* src_mask */ |
1826 | 0, /* dst_mask */ | |
b34976b6 | 1827 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1828 | |
1829 | /* GNU extension to record C++ vtable member usage. */ | |
1830 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1831 | 0, /* rightshift */ | |
1832 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1833 | 0, /* bitsize */ | |
b34976b6 | 1834 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1835 | 0, /* bitpos */ |
1836 | complain_overflow_dont, /* complain_on_overflow */ | |
1837 | NULL, /* special_function */ | |
1838 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1839 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1840 | 0, /* src_mask */ |
1841 | 0, /* dst_mask */ | |
b34976b6 | 1842 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1843 | }; |
1844 | ||
1845 | \f | |
1846 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1847 | be done. */ | |
1848 | ||
1849 | static void | |
4ce794b7 | 1850 | ppc_howto_init (void) |
5bd4f169 AM |
1851 | { |
1852 | unsigned int i, type; | |
1853 | ||
1854 | for (i = 0; | |
1855 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1856 | i++) | |
1857 | { | |
1858 | type = ppc64_elf_howto_raw[i].type; | |
1859 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1860 | / sizeof (ppc64_elf_howto_table[0]))); | |
1861 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1862 | } | |
1863 | } | |
1864 | ||
1865 | static reloc_howto_type * | |
4ce794b7 AM |
1866 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
1867 | bfd_reloc_code_real_type code) | |
5bd4f169 | 1868 | { |
411e1bfb | 1869 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1870 | |
1871 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1872 | /* Initialize howto table if needed. */ | |
1873 | ppc_howto_init (); | |
1874 | ||
4ce794b7 | 1875 | switch (code) |
5bd4f169 AM |
1876 | { |
1877 | default: | |
4ce794b7 | 1878 | return NULL; |
5bd4f169 | 1879 | |
411e1bfb AM |
1880 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1881 | break; | |
1882 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1883 | break; | |
1884 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1885 | break; | |
1886 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1887 | break; | |
1888 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1889 | break; | |
1890 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1891 | break; | |
1892 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1893 | break; |
411e1bfb | 1894 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1895 | break; |
411e1bfb | 1896 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1897 | break; |
411e1bfb | 1898 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1899 | break; |
411e1bfb | 1900 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1901 | break; |
411e1bfb | 1902 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1903 | break; |
411e1bfb | 1904 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1905 | break; |
411e1bfb | 1906 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1907 | break; |
411e1bfb | 1908 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1909 | break; |
411e1bfb | 1910 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1911 | break; |
411e1bfb | 1912 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1913 | break; |
411e1bfb | 1914 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1967 | break; |
411e1bfb | 1968 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1969 | break; |
411e1bfb | 1970 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1971 | break; |
411e1bfb | 1972 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1973 | break; |
411e1bfb | 1974 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1975 | break; |
411e1bfb | 1976 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1977 | break; |
411e1bfb | 1978 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 1979 | break; |
411e1bfb | 1980 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 1981 | break; |
411e1bfb | 1982 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 1983 | break; |
411e1bfb | 1984 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 1985 | break; |
411e1bfb | 1986 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 1987 | break; |
411e1bfb | 1988 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 1989 | break; |
411e1bfb | 1990 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 1991 | break; |
411e1bfb | 1992 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 1993 | break; |
411e1bfb | 1994 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 1995 | break; |
411e1bfb | 1996 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 1997 | break; |
411e1bfb | 1998 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 1999 | break; |
411e1bfb | 2000 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 2001 | break; |
411e1bfb | 2002 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 2003 | break; |
411e1bfb | 2004 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 2005 | break; |
411e1bfb | 2006 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 2007 | break; |
411e1bfb | 2008 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 2009 | break; |
411e1bfb | 2010 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 2011 | break; |
411e1bfb AM |
2012 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
2013 | break; | |
2014 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
2015 | break; | |
2016 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
2017 | break; | |
2018 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
2019 | break; | |
2020 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
2021 | break; | |
2022 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
2023 | break; | |
2024 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
2025 | break; | |
2026 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
2027 | break; | |
2028 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
2029 | break; | |
2030 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
2031 | break; | |
2032 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
2033 | break; | |
2034 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
2035 | break; | |
2036 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
2037 | break; | |
2038 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
2039 | break; | |
2040 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
2041 | break; | |
2042 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
2043 | break; | |
2044 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2045 | break; | |
2046 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2047 | break; | |
2048 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2049 | break; | |
2050 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2051 | break; | |
2052 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2053 | break; | |
2054 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2055 | break; | |
2056 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2057 | break; | |
2058 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2059 | break; | |
2060 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2061 | break; | |
2062 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2063 | break; | |
2064 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2065 | break; | |
2066 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2067 | break; | |
2068 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2069 | break; | |
2070 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2071 | break; | |
2072 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2073 | break; | |
2074 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2075 | break; | |
2076 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2077 | break; | |
2078 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2079 | break; | |
2080 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2081 | break; |
2082 | } | |
2083 | ||
4ce794b7 | 2084 | return ppc64_elf_howto_table[r]; |
5bd4f169 AM |
2085 | }; |
2086 | ||
2087 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2088 | ||
2089 | static void | |
4ce794b7 AM |
2090 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
2091 | Elf_Internal_Rela *dst) | |
5bd4f169 | 2092 | { |
65f38f15 AM |
2093 | unsigned int type; |
2094 | ||
ef60b7ff | 2095 | /* Initialize howto table if needed. */ |
5bd4f169 | 2096 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2097 | ppc_howto_init (); |
2098 | ||
65f38f15 AM |
2099 | type = ELF64_R_TYPE (dst->r_info); |
2100 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2101 | / sizeof (ppc64_elf_howto_table[0]))); | |
2102 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2103 | } |
2104 | ||
04c9666a | 2105 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2106 | |
2107 | static bfd_reloc_status_type | |
4ce794b7 AM |
2108 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2109 | void *data, asection *input_section, | |
2110 | bfd *output_bfd, char **error_message) | |
5bd4f169 | 2111 | { |
805fc799 AM |
2112 | /* If this is a relocatable link (output_bfd test tells us), just |
2113 | call the generic function. Any adjustment will be done at final | |
2114 | link time. */ | |
2115 | if (output_bfd != NULL) | |
cedb70c5 | 2116 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2117 | input_section, output_bfd, error_message); |
2118 | ||
2119 | /* Adjust the addend for sign extension of the low 16 bits. | |
2120 | We won't actually be using the low 16 bits, so trashing them | |
2121 | doesn't matter. */ | |
2122 | reloc_entry->addend += 0x8000; | |
2123 | return bfd_reloc_continue; | |
2124 | } | |
5bd4f169 | 2125 | |
805fc799 | 2126 | static bfd_reloc_status_type |
4ce794b7 AM |
2127 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2128 | void *data, asection *input_section, | |
2129 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2130 | { |
2131 | long insn; | |
04c9666a | 2132 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2133 | bfd_size_type octets; |
2134 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2135 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2136 | |
2137 | /* If this is a relocatable link (output_bfd test tells us), just | |
2138 | call the generic function. Any adjustment will be done at final | |
2139 | link time. */ | |
5bd4f169 | 2140 | if (output_bfd != NULL) |
cedb70c5 | 2141 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2142 | input_section, output_bfd, error_message); |
2143 | ||
2144 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2145 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2146 | insn &= ~(0x01 << 21); | |
4ce794b7 | 2147 | r_type = reloc_entry->howto->type; |
805fc799 AM |
2148 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2149 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2150 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2151 | |
2152 | if (is_power4) | |
5bd4f169 | 2153 | { |
805fc799 AM |
2154 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2155 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2156 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2157 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2158 | insn |= 0x02 << 21; | |
2159 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2160 | insn |= 0x08 << 21; | |
2161 | else | |
2162 | return bfd_reloc_continue; | |
5bd4f169 | 2163 | } |
805fc799 AM |
2164 | else |
2165 | { | |
2166 | bfd_vma target = 0; | |
2167 | bfd_vma from; | |
5bd4f169 | 2168 | |
805fc799 AM |
2169 | if (!bfd_is_com_section (symbol->section)) |
2170 | target = symbol->value; | |
2171 | target += symbol->section->output_section->vma; | |
2172 | target += symbol->section->output_offset; | |
2173 | target += reloc_entry->addend; | |
5bd4f169 | 2174 | |
805fc799 AM |
2175 | from = (reloc_entry->address |
2176 | + input_section->output_offset | |
2177 | + input_section->output_section->vma); | |
5bd4f169 | 2178 | |
805fc799 AM |
2179 | /* Invert 'y' bit if not the default. */ |
2180 | if ((bfd_signed_vma) (target - from) < 0) | |
2181 | insn ^= 0x01 << 21; | |
2182 | } | |
4ce794b7 | 2183 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
805fc799 AM |
2184 | return bfd_reloc_continue; |
2185 | } | |
5bd4f169 | 2186 | |
805fc799 | 2187 | static bfd_reloc_status_type |
4ce794b7 AM |
2188 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2189 | void *data, asection *input_section, | |
2190 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2191 | { |
2192 | /* If this is a relocatable link (output_bfd test tells us), just | |
2193 | call the generic function. Any adjustment will be done at final | |
2194 | link time. */ | |
2195 | if (output_bfd != NULL) | |
cedb70c5 | 2196 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2197 | input_section, output_bfd, error_message); |
5bd4f169 | 2198 | |
805fc799 AM |
2199 | /* Subtract the symbol section base address. */ |
2200 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2201 | return bfd_reloc_continue; |
2202 | } | |
2203 | ||
805fc799 | 2204 | static bfd_reloc_status_type |
4ce794b7 AM |
2205 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2206 | void *data, asection *input_section, | |
2207 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2208 | { |
2209 | /* If this is a relocatable link (output_bfd test tells us), just | |
2210 | call the generic function. Any adjustment will be done at final | |
2211 | link time. */ | |
2212 | if (output_bfd != NULL) | |
cedb70c5 | 2213 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2214 | input_section, output_bfd, error_message); |
2215 | ||
2216 | /* Subtract the symbol section base address. */ | |
2217 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2218 | ||
2219 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2220 | reloc_entry->addend += 0x8000; | |
2221 | return bfd_reloc_continue; | |
2222 | } | |
2223 | ||
2224 | static bfd_reloc_status_type | |
4ce794b7 AM |
2225 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2226 | void *data, asection *input_section, | |
2227 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2228 | { |
2229 | bfd_vma TOCstart; | |
2230 | ||
2231 | /* If this is a relocatable link (output_bfd test tells us), just | |
2232 | call the generic function. Any adjustment will be done at final | |
2233 | link time. */ | |
2234 | if (output_bfd != NULL) | |
cedb70c5 | 2235 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2236 | input_section, output_bfd, error_message); |
2237 | ||
2238 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2239 | if (TOCstart == 0) | |
2240 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2241 | ||
2242 | /* Subtract the TOC base address. */ | |
2243 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2244 | return bfd_reloc_continue; | |
2245 | } | |
2246 | ||
2247 | static bfd_reloc_status_type | |
4ce794b7 AM |
2248 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2249 | void *data, asection *input_section, | |
2250 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2251 | { |
2252 | bfd_vma TOCstart; | |
2253 | ||
2254 | /* If this is a relocatable link (output_bfd test tells us), just | |
2255 | call the generic function. Any adjustment will be done at final | |
2256 | link time. */ | |
2257 | if (output_bfd != NULL) | |
cedb70c5 | 2258 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2259 | input_section, output_bfd, error_message); |
2260 | ||
2261 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2262 | if (TOCstart == 0) | |
2263 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2264 | ||
2265 | /* Subtract the TOC base address. */ | |
2266 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2267 | ||
2268 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2269 | reloc_entry->addend += 0x8000; | |
2270 | return bfd_reloc_continue; | |
2271 | } | |
2272 | ||
2273 | static bfd_reloc_status_type | |
4ce794b7 AM |
2274 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2275 | void *data, asection *input_section, | |
2276 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2277 | { |
2278 | bfd_vma TOCstart; | |
2279 | bfd_size_type octets; | |
2280 | ||
2281 | /* If this is a relocatable link (output_bfd test tells us), just | |
2282 | call the generic function. Any adjustment will be done at final | |
2283 | link time. */ | |
2284 | if (output_bfd != NULL) | |
cedb70c5 | 2285 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2286 | input_section, output_bfd, error_message); |
2287 | ||
2288 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2289 | if (TOCstart == 0) | |
2290 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2291 | ||
2292 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2293 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
2294 | return bfd_reloc_ok; | |
2295 | } | |
2296 | ||
2297 | static bfd_reloc_status_type | |
4ce794b7 AM |
2298 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
2299 | void *data, asection *input_section, | |
2300 | bfd *output_bfd, char **error_message) | |
805fc799 AM |
2301 | { |
2302 | /* If this is a relocatable link (output_bfd test tells us), just | |
2303 | call the generic function. Any adjustment will be done at final | |
2304 | link time. */ | |
2305 | if (output_bfd != NULL) | |
cedb70c5 | 2306 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2307 | input_section, output_bfd, error_message); |
2308 | ||
2309 | if (error_message != NULL) | |
2310 | { | |
2311 | static char buf[60]; | |
2312 | sprintf (buf, "generic linker can't handle %s", | |
2313 | reloc_entry->howto->name); | |
2314 | *error_message = buf; | |
2315 | } | |
2316 | return bfd_reloc_dangerous; | |
2317 | } | |
2318 | ||
feee612b AM |
2319 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2320 | default is 32 bit. */ | |
2321 | ||
b34976b6 | 2322 | static bfd_boolean |
4ce794b7 | 2323 | ppc64_elf_object_p (bfd *abfd) |
feee612b AM |
2324 | { |
2325 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2326 | { | |
2327 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2328 | ||
2329 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2330 | { | |
2331 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2332 | abfd->arch_info = abfd->arch_info->next; | |
2333 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2334 | } | |
2335 | } | |
b34976b6 | 2336 | return TRUE; |
feee612b AM |
2337 | } |
2338 | ||
5bd4f169 AM |
2339 | /* Merge backend specific data from an object file to the output |
2340 | object file when linking. */ | |
2f6d9989 | 2341 | |
b34976b6 | 2342 | static bfd_boolean |
4ce794b7 | 2343 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) |
5bd4f169 | 2344 | { |
5bd4f169 AM |
2345 | /* Check if we have the same endianess. */ |
2346 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2347 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2348 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2349 | { | |
2350 | const char *msg; | |
2351 | ||
2352 | if (bfd_big_endian (ibfd)) | |
4ce794b7 AM |
2353 | msg = _("%s: compiled for a big endian system " |
2354 | "and target is little endian"); | |
5bd4f169 | 2355 | else |
4ce794b7 AM |
2356 | msg = _("%s: compiled for a little endian system " |
2357 | "and target is big endian"); | |
5bd4f169 | 2358 | |
8f615d07 | 2359 | (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd)); |
5bd4f169 AM |
2360 | |
2361 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2362 | return FALSE; |
5bd4f169 AM |
2363 | } |
2364 | ||
b34976b6 | 2365 | return TRUE; |
5bd4f169 | 2366 | } |
f0abc2a1 AM |
2367 | |
2368 | struct _ppc64_elf_section_data | |
2369 | { | |
2370 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2371 | |
2372 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2373 | union |
2374 | { | |
411e1bfb | 2375 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2376 | asection **func_sec; |
411e1bfb | 2377 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2378 | long *adjust; |
2379 | } opd; | |
411e1bfb AM |
2380 | |
2381 | /* An array for toc sections, indexed by offset/8. | |
2382 | Specifies the relocation symbol index used at a given toc offset. */ | |
2383 | unsigned *t_symndx; | |
f0abc2a1 AM |
2384 | }; |
2385 | ||
2386 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2387 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2388 | |
2389 | static bfd_boolean | |
4ce794b7 | 2390 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
f0abc2a1 AM |
2391 | { |
2392 | struct _ppc64_elf_section_data *sdata; | |
2393 | bfd_size_type amt = sizeof (*sdata); | |
2394 | ||
4ce794b7 | 2395 | sdata = bfd_zalloc (abfd, amt); |
f0abc2a1 AM |
2396 | if (sdata == NULL) |
2397 | return FALSE; | |
4ce794b7 | 2398 | sec->used_by_bfd = sdata; |
f0abc2a1 AM |
2399 | |
2400 | return _bfd_elf_new_section_hook (abfd, sec); | |
2401 | } | |
5bd4f169 | 2402 | \f |
65f38f15 AM |
2403 | /* The following functions are specific to the ELF linker, while |
2404 | functions above are used generally. Those named ppc64_elf_* are | |
2405 | called by the main ELF linker code. They appear in this file more | |
2406 | or less in the order in which they are called. eg. | |
2407 | ppc64_elf_check_relocs is called early in the link process, | |
2408 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2409 | called. |
2410 | ||
2411 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2412 | functions have both a function code symbol and a function descriptor | |
2413 | symbol. A call to foo in a relocatable object file looks like: | |
2414 | ||
2415 | . .text | |
2416 | . x: | |
2417 | . bl .foo | |
2418 | . nop | |
2419 | ||
2420 | The function definition in another object file might be: | |
2421 | ||
2422 | . .section .opd | |
2423 | . foo: .quad .foo | |
2424 | . .quad .TOC.@tocbase | |
2425 | . .quad 0 | |
2426 | . | |
2427 | . .text | |
2428 | . .foo: blr | |
2429 | ||
2430 | When the linker resolves the call during a static link, the branch | |
2431 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2432 | If the function definition is in a shared library, things are a little | |
2433 | different: The call goes via a plt call stub, the opd information gets | |
2434 | copied to the plt, and the linker patches the nop. | |
2435 | ||
2436 | . x: | |
2437 | . bl .foo_stub | |
2438 | . ld 2,40(1) | |
2439 | . | |
2440 | . | |
2441 | . .foo_stub: | |
2442 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2443 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2444 | . std 2,40(1) # this is the general idea |
2445 | . ld 11,0(12) | |
2446 | . ld 2,8(12) | |
2447 | . mtctr 11 | |
2448 | . ld 11,16(12) | |
2449 | . bctr | |
2450 | . | |
2451 | . .section .plt | |
2452 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2453 | ||
2454 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2455 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2456 | copying. | |
2457 | ||
2458 | What are the difficulties here? Well, firstly, the relocations | |
2459 | examined by the linker in check_relocs are against the function code | |
2460 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2461 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2462 | to carefully copy dynamic link information from one symbol to the other. | |
2463 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2464 | symbol as is normal for most other backends. We need foo dynamic | |
2465 | instead, at least for an application final link. However, when | |
2466 | creating a shared library containing foo, we need to have both symbols | |
2467 | dynamic so that references to .foo are satisfied during the early | |
2468 | stages of linking. Otherwise the linker might decide to pull in a | |
41bd81ab | 2469 | definition from some other object, eg. a static library. */ |
65f38f15 AM |
2470 | |
2471 | /* The linker needs to keep track of the number of relocs that it | |
2472 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2473 | This is so that it can later discard them if they are found to be | |
2474 | unnecessary. We store the information in a field extending the | |
2475 | regular ELF linker hash table. */ | |
2476 | ||
2477 | struct ppc_dyn_relocs | |
2478 | { | |
2479 | struct ppc_dyn_relocs *next; | |
2480 | ||
2481 | /* The input section of the reloc. */ | |
2482 | asection *sec; | |
2483 | ||
2484 | /* Total number of relocs copied for the input section. */ | |
2485 | bfd_size_type count; | |
2486 | ||
2487 | /* Number of pc-relative relocs copied for the input section. */ | |
2488 | bfd_size_type pc_count; | |
2489 | }; | |
2490 | ||
411e1bfb AM |
2491 | /* Track GOT entries needed for a given symbol. We might need more |
2492 | than one got entry per symbol. */ | |
2493 | struct got_entry | |
2494 | { | |
2495 | struct got_entry *next; | |
2496 | ||
e7b938ca | 2497 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
2498 | bfd_vma addend; |
2499 | ||
e7b938ca | 2500 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
2501 | union |
2502 | { | |
2503 | bfd_signed_vma refcount; | |
2504 | bfd_vma offset; | |
2505 | } got; | |
2506 | ||
e7b938ca AM |
2507 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, |
2508 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
411e1bfb AM |
2509 | char tls_type; |
2510 | }; | |
2511 | ||
2512 | /* The same for PLT. */ | |
2513 | struct plt_entry | |
2514 | { | |
2515 | struct plt_entry *next; | |
2516 | ||
2517 | bfd_vma addend; | |
2518 | ||
2519 | union | |
2520 | { | |
2521 | bfd_signed_vma refcount; | |
2522 | bfd_vma offset; | |
2523 | } plt; | |
2524 | }; | |
2525 | ||
65f38f15 | 2526 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
2527 | selects those that must be copied when linking a shared library, |
2528 | even when the symbol is local. */ | |
65f38f15 | 2529 | |
411e1bfb | 2530 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
2531 | ((RTYPE) != R_PPC64_REL32 \ |
2532 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 2533 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 2534 | |
f4656909 AM |
2535 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2536 | copying dynamic variables from a shared lib into an app's dynbss | |
2537 | section, and instead use a dynamic relocation to point into the | |
2538 | shared lib. */ | |
a23b6845 | 2539 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 2540 | |
721956f4 AM |
2541 | /* Section name for stubs is the associated section name plus this |
2542 | string. */ | |
2543 | #define STUB_SUFFIX ".stub" | |
2544 | ||
2545 | /* Linker stubs. | |
2546 | ppc_stub_long_branch: | |
2547 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
2548 | destination, but a 24 bit branch in a stub section will reach. | |
2549 | . b dest | |
2550 | ||
2551 | ppc_stub_plt_branch: | |
2552 | Similar to the above, but a 24 bit branch in the stub section won't | |
2553 | reach its destination. | |
87e226ce AM |
2554 | . addis %r12,%r2,xxx@toc@ha |
2555 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
2556 | . mtctr %r11 |
2557 | . bctr | |
2558 | ||
2559 | ppc_stub_plt_call: | |
2560 | Used to call a function in a shared library. | |
87e226ce | 2561 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 2562 | . std %r2,40(%r1) |
87e226ce AM |
2563 | . ld %r11,xxx+0@toc@l(%r12) |
2564 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 2565 | . mtctr %r11 |
87e226ce | 2566 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 | 2567 | . bctr |
ad8e1ba5 AM |
2568 | |
2569 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
2570 | code to adjust the value and save r2 to support multiple toc sections. | |
2571 | A ppc_stub_long_branch with an r2 offset looks like: | |
2572 | . std %r2,40(%r1) | |
2573 | . addis %r2,%r2,off@ha | |
2574 | . addi %r2,%r2,off@l | |
2575 | . b dest | |
2576 | ||
2577 | A ppc_stub_plt_branch with an r2 offset looks like: | |
2578 | . std %r2,40(%r1) | |
2579 | . addis %r12,%r2,xxx@toc@ha | |
2580 | . ld %r11,xxx@toc@l(%r12) | |
2581 | . addis %r2,%r2,off@ha | |
2582 | . addi %r2,%r2,off@l | |
2583 | . mtctr %r11 | |
2584 | . bctr | |
721956f4 AM |
2585 | */ |
2586 | ||
2587 | enum ppc_stub_type { | |
2588 | ppc_stub_none, | |
2589 | ppc_stub_long_branch, | |
ad8e1ba5 | 2590 | ppc_stub_long_branch_r2off, |
721956f4 | 2591 | ppc_stub_plt_branch, |
ad8e1ba5 | 2592 | ppc_stub_plt_branch_r2off, |
721956f4 AM |
2593 | ppc_stub_plt_call |
2594 | }; | |
2595 | ||
2596 | struct ppc_stub_hash_entry { | |
2597 | ||
2598 | /* Base hash table entry structure. */ | |
2599 | struct bfd_hash_entry root; | |
2600 | ||
ad8e1ba5 AM |
2601 | enum ppc_stub_type stub_type; |
2602 | ||
721956f4 AM |
2603 | /* The stub section. */ |
2604 | asection *stub_sec; | |
2605 | ||
2606 | /* Offset within stub_sec of the beginning of this stub. */ | |
2607 | bfd_vma stub_offset; | |
2608 | ||
2609 | /* Given the symbol's value and its section we can determine its final | |
2610 | value when building the stubs (so the stub knows where to jump. */ | |
2611 | bfd_vma target_value; | |
2612 | asection *target_section; | |
2613 | ||
721956f4 AM |
2614 | /* The symbol table entry, if any, that this was derived from. */ |
2615 | struct ppc_link_hash_entry *h; | |
2616 | ||
411e1bfb AM |
2617 | /* And the reloc addend that this was derived from. */ |
2618 | bfd_vma addend; | |
2619 | ||
721956f4 AM |
2620 | /* Where this stub is being called from, or, in the case of combined |
2621 | stub sections, the first input section in the group. */ | |
2622 | asection *id_sec; | |
2623 | }; | |
2624 | ||
2625 | struct ppc_branch_hash_entry { | |
2626 | ||
2627 | /* Base hash table entry structure. */ | |
2628 | struct bfd_hash_entry root; | |
2629 | ||
2630 | /* Offset within .branch_lt. */ | |
2631 | unsigned int offset; | |
2632 | ||
2633 | /* Generation marker. */ | |
2634 | unsigned int iter; | |
2635 | }; | |
65f38f15 AM |
2636 | |
2637 | struct ppc_link_hash_entry | |
2638 | { | |
2639 | struct elf_link_hash_entry elf; | |
2640 | ||
721956f4 AM |
2641 | /* A pointer to the most recently used stub hash entry against this |
2642 | symbol. */ | |
2643 | struct ppc_stub_hash_entry *stub_cache; | |
2644 | ||
65f38f15 AM |
2645 | /* Track dynamic relocs copied for this symbol. */ |
2646 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 2647 | |
721956f4 AM |
2648 | /* Link between function code and descriptor symbols. */ |
2649 | struct elf_link_hash_entry *oh; | |
2650 | ||
e86ce104 AM |
2651 | /* Flag function code and descriptor symbols. */ |
2652 | unsigned int is_func:1; | |
2653 | unsigned int is_func_descriptor:1; | |
1e2f5b6e | 2654 | unsigned int is_entry:1; |
411e1bfb AM |
2655 | |
2656 | /* Contexts in which symbol is used in the GOT (or TOC). | |
e7b938ca AM |
2657 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
2658 | corresponding relocs are encountered during check_relocs. | |
2659 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2660 | indicate the corresponding GOT entry type is not needed. | |
2661 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
2662 | a TPREL one. We use a separate flag rather than setting TPREL | |
2663 | just for convenience in distinguishing the two cases. */ | |
2664 | #define TLS_GD 1 /* GD reloc. */ | |
2665 | #define TLS_LD 2 /* LD reloc. */ | |
2666 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2667 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2668 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2669 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
2670 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
2671 | char tls_mask; | |
65f38f15 AM |
2672 | }; |
2673 | ||
2674 | /* ppc64 ELF linker hash table. */ | |
2675 | ||
2676 | struct ppc_link_hash_table | |
2677 | { | |
2678 | struct elf_link_hash_table elf; | |
2679 | ||
721956f4 AM |
2680 | /* The stub hash table. */ |
2681 | struct bfd_hash_table stub_hash_table; | |
2682 | ||
2683 | /* Another hash table for plt_branch stubs. */ | |
2684 | struct bfd_hash_table branch_hash_table; | |
2685 | ||
2686 | /* Linker stub bfd. */ | |
2687 | bfd *stub_bfd; | |
2688 | ||
2689 | /* Linker call-backs. */ | |
4ce794b7 AM |
2690 | asection * (*add_stub_section) (const char *, asection *); |
2691 | void (*layout_sections_again) (void); | |
721956f4 AM |
2692 | |
2693 | /* Array to keep track of which stub sections have been created, and | |
2694 | information on stub grouping. */ | |
2695 | struct map_stub { | |
2696 | /* This is the section to which stubs in the group will be attached. */ | |
2697 | asection *link_sec; | |
2698 | /* The stub section. */ | |
2699 | asection *stub_sec; | |
ad8e1ba5 AM |
2700 | /* Along with elf_gp, specifies the TOC pointer used in this group. */ |
2701 | bfd_vma toc_off; | |
721956f4 AM |
2702 | } *stub_group; |
2703 | ||
ad8e1ba5 AM |
2704 | /* Support for multiple toc sections. */ |
2705 | unsigned int no_multi_toc; | |
2706 | unsigned int multi_toc_needed; | |
2707 | ||
2708 | /* Temp used when calculating TOC pointers. */ | |
2709 | bfd_vma toc_curr; | |
2710 | ||
734b6cf9 AM |
2711 | /* Highest output section index. */ |
2712 | int top_index; | |
2713 | ||
2714 | /* List of input sections for each output section. */ | |
2715 | asection **input_list; | |
721956f4 | 2716 | |
65f38f15 | 2717 | /* Short-cuts to get to dynamic linker sections. */ |
4ce794b7 AM |
2718 | asection *got; |
2719 | asection *relgot; | |
2720 | asection *plt; | |
2721 | asection *relplt; | |
2722 | asection *dynbss; | |
2723 | asection *relbss; | |
2724 | asection *glink; | |
82bd7b59 | 2725 | asection *sfpr; |
4ce794b7 AM |
2726 | asection *brlt; |
2727 | asection *relbrlt; | |
ec338859 | 2728 | |
411e1bfb AM |
2729 | /* Short-cut to first output tls section. */ |
2730 | asection *tls_sec; | |
2731 | ||
2732 | /* Shortcut to .__tls_get_addr. */ | |
2733 | struct elf_link_hash_entry *tls_get_addr; | |
2734 | ||
2735 | /* TLS local dynamic got entry handling. */ | |
2736 | union { | |
2737 | bfd_signed_vma refcount; | |
2738 | bfd_vma offset; | |
2739 | } tlsld_got; | |
2740 | ||
9b5ecbd0 AM |
2741 | /* Statistics. */ |
2742 | unsigned long stub_count[ppc_stub_plt_call]; | |
2743 | ||
ad8e1ba5 AM |
2744 | /* Set if we should emit symbols for stubs. */ |
2745 | unsigned int emit_stub_syms; | |
2746 | ||
5d1634d7 | 2747 | /* Set on error. */ |
721956f4 AM |
2748 | unsigned int stub_error; |
2749 | ||
2750 | /* Flag set when small branches are detected. Used to | |
2751 | select suitable defaults for the stub group size. */ | |
2752 | unsigned int has_14bit_branch; | |
2753 | ||
805fc799 AM |
2754 | /* Set if we detect a reference undefined weak symbol. */ |
2755 | unsigned int have_undefweak; | |
2756 | ||
721956f4 AM |
2757 | /* Incremented every time we size stubs. */ |
2758 | unsigned int stub_iteration; | |
5d1634d7 | 2759 | |
ec338859 AM |
2760 | /* Small local sym to section mapping cache. */ |
2761 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
2762 | }; |
2763 | ||
2764 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ | |
2765 | ||
2766 | #define ppc_hash_table(p) \ | |
2767 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
2768 | ||
721956f4 AM |
2769 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
2770 | ((struct ppc_stub_hash_entry *) \ | |
2771 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2772 | ||
2773 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
2774 | ((struct ppc_branch_hash_entry *) \ | |
2775 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2776 | ||
2777 | /* Create an entry in the stub hash table. */ | |
2778 | ||
2779 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2780 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
2781 | struct bfd_hash_table *table, | |
2782 | const char *string) | |
721956f4 AM |
2783 | { |
2784 | /* Allocate the structure if it has not already been allocated by a | |
2785 | subclass. */ | |
2786 | if (entry == NULL) | |
2787 | { | |
2788 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
2789 | if (entry == NULL) | |
2790 | return entry; | |
2791 | } | |
2792 | ||
2793 | /* Call the allocation method of the superclass. */ | |
2794 | entry = bfd_hash_newfunc (entry, table, string); | |
2795 | if (entry != NULL) | |
2796 | { | |
2797 | struct ppc_stub_hash_entry *eh; | |
2798 | ||
2799 | /* Initialize the local fields. */ | |
2800 | eh = (struct ppc_stub_hash_entry *) entry; | |
ad8e1ba5 | 2801 | eh->stub_type = ppc_stub_none; |
721956f4 AM |
2802 | eh->stub_sec = NULL; |
2803 | eh->stub_offset = 0; | |
2804 | eh->target_value = 0; | |
2805 | eh->target_section = NULL; | |
721956f4 AM |
2806 | eh->h = NULL; |
2807 | eh->id_sec = NULL; | |
2808 | } | |
2809 | ||
2810 | return entry; | |
2811 | } | |
2812 | ||
2813 | /* Create an entry in the branch hash table. */ | |
2814 | ||
2815 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2816 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
2817 | struct bfd_hash_table *table, | |
2818 | const char *string) | |
721956f4 AM |
2819 | { |
2820 | /* Allocate the structure if it has not already been allocated by a | |
2821 | subclass. */ | |
2822 | if (entry == NULL) | |
2823 | { | |
2824 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
2825 | if (entry == NULL) | |
2826 | return entry; | |
2827 | } | |
2828 | ||
2829 | /* Call the allocation method of the superclass. */ | |
2830 | entry = bfd_hash_newfunc (entry, table, string); | |
2831 | if (entry != NULL) | |
2832 | { | |
2833 | struct ppc_branch_hash_entry *eh; | |
2834 | ||
2835 | /* Initialize the local fields. */ | |
2836 | eh = (struct ppc_branch_hash_entry *) entry; | |
2837 | eh->offset = 0; | |
2838 | eh->iter = 0; | |
2839 | } | |
2840 | ||
2841 | return entry; | |
2842 | } | |
2843 | ||
65f38f15 AM |
2844 | /* Create an entry in a ppc64 ELF linker hash table. */ |
2845 | ||
2846 | static struct bfd_hash_entry * | |
4ce794b7 AM |
2847 | link_hash_newfunc (struct bfd_hash_entry *entry, |
2848 | struct bfd_hash_table *table, | |
2849 | const char *string) | |
65f38f15 AM |
2850 | { |
2851 | /* Allocate the structure if it has not already been allocated by a | |
2852 | subclass. */ | |
2853 | if (entry == NULL) | |
2854 | { | |
2855 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
2856 | if (entry == NULL) | |
2857 | return entry; | |
2858 | } | |
2859 | ||
2860 | /* Call the allocation method of the superclass. */ | |
2861 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
2862 | if (entry != NULL) | |
2863 | { | |
2864 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
2865 | ||
721956f4 | 2866 | eh->stub_cache = NULL; |
65f38f15 | 2867 | eh->dyn_relocs = NULL; |
721956f4 | 2868 | eh->oh = NULL; |
e86ce104 AM |
2869 | eh->is_func = 0; |
2870 | eh->is_func_descriptor = 0; | |
1e2f5b6e | 2871 | eh->is_entry = 0; |
e7b938ca | 2872 | eh->tls_mask = 0; |
65f38f15 AM |
2873 | } |
2874 | ||
2875 | return entry; | |
2876 | } | |
2877 | ||
2878 | /* Create a ppc64 ELF linker hash table. */ | |
2879 | ||
2880 | static struct bfd_link_hash_table * | |
4ce794b7 | 2881 | ppc64_elf_link_hash_table_create (bfd *abfd) |
65f38f15 AM |
2882 | { |
2883 | struct ppc_link_hash_table *htab; | |
2884 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
2885 | ||
4ce794b7 | 2886 | htab = bfd_zmalloc (amt); |
65f38f15 AM |
2887 | if (htab == NULL) |
2888 | return NULL; | |
2889 | ||
2890 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
2891 | { | |
e2d34d7d | 2892 | free (htab); |
65f38f15 AM |
2893 | return NULL; |
2894 | } | |
2895 | ||
721956f4 AM |
2896 | /* Init the stub hash table too. */ |
2897 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
2898 | return NULL; | |
2899 | ||
2900 | /* And the branch hash table. */ | |
2901 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
2902 | return NULL; | |
2903 | ||
3254fd24 AM |
2904 | /* Initializing two fields of the union is just cosmetic. We really |
2905 | only care about glist, but when compiled on a 32-bit host the | |
2906 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
2907 | debugger inspection of these fields look nicer. */ | |
2908 | htab->elf.init_refcount.refcount = 0; | |
2909 | htab->elf.init_refcount.glist = NULL; | |
2910 | htab->elf.init_offset.offset = 0; | |
2911 | htab->elf.init_offset.glist = NULL; | |
2912 | ||
65f38f15 AM |
2913 | return &htab->elf.root; |
2914 | } | |
2915 | ||
721956f4 AM |
2916 | /* Free the derived linker hash table. */ |
2917 | ||
2918 | static void | |
4ce794b7 | 2919 | ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash) |
721956f4 AM |
2920 | { |
2921 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
2922 | ||
2923 | bfd_hash_table_free (&ret->stub_hash_table); | |
2924 | bfd_hash_table_free (&ret->branch_hash_table); | |
2925 | _bfd_generic_link_hash_table_free (hash); | |
2926 | } | |
2927 | ||
2928 | /* Build a name for an entry in the stub hash table. */ | |
2929 | ||
2930 | static char * | |
4ce794b7 AM |
2931 | ppc_stub_name (const asection *input_section, |
2932 | const asection *sym_sec, | |
2933 | const struct ppc_link_hash_entry *h, | |
2934 | const Elf_Internal_Rela *rel) | |
721956f4 AM |
2935 | { |
2936 | char *stub_name; | |
2937 | bfd_size_type len; | |
2938 | ||
2939 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
2940 | offsets from a sym as a branch target? In fact, we could | |
2941 | probably assume the addend is always zero. */ | |
2942 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
2943 | ||
2944 | if (h) | |
2945 | { | |
2946 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
2947 | stub_name = bfd_malloc (len); | |
2948 | if (stub_name != NULL) | |
2949 | { | |
2950 | sprintf (stub_name, "%08x_%s+%x", | |
2951 | input_section->id & 0xffffffff, | |
2952 | h->elf.root.root.string, | |
2953 | (int) rel->r_addend & 0xffffffff); | |
2954 | } | |
2955 | } | |
2956 | else | |
2957 | { | |
ad8e1ba5 | 2958 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
721956f4 AM |
2959 | stub_name = bfd_malloc (len); |
2960 | if (stub_name != NULL) | |
2961 | { | |
2962 | sprintf (stub_name, "%08x_%x:%x+%x", | |
2963 | input_section->id & 0xffffffff, | |
2964 | sym_sec->id & 0xffffffff, | |
2965 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
2966 | (int) rel->r_addend & 0xffffffff); | |
2967 | } | |
2968 | } | |
2969 | return stub_name; | |
2970 | } | |
2971 | ||
2972 | /* Look up an entry in the stub hash. Stub entries are cached because | |
2973 | creating the stub name takes a bit of time. */ | |
2974 | ||
2975 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
2976 | ppc_get_stub_entry (const asection *input_section, |
2977 | const asection *sym_sec, | |
2978 | struct elf_link_hash_entry *hash, | |
2979 | const Elf_Internal_Rela *rel, | |
2980 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
2981 | { |
2982 | struct ppc_stub_hash_entry *stub_entry; | |
2983 | struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash; | |
2984 | const asection *id_sec; | |
2985 | ||
2986 | /* If this input section is part of a group of sections sharing one | |
2987 | stub section, then use the id of the first section in the group. | |
2988 | Stub names need to include a section id, as there may well be | |
2989 | more than one stub used to reach say, printf, and we need to | |
2990 | distinguish between them. */ | |
2991 | id_sec = htab->stub_group[input_section->id].link_sec; | |
2992 | ||
2993 | if (h != NULL && h->stub_cache != NULL | |
2994 | && h->stub_cache->h == h | |
2995 | && h->stub_cache->id_sec == id_sec) | |
2996 | { | |
2997 | stub_entry = h->stub_cache; | |
2998 | } | |
2999 | else | |
3000 | { | |
3001 | char *stub_name; | |
3002 | ||
3003 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3004 | if (stub_name == NULL) | |
3005 | return NULL; | |
3006 | ||
3007 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3008 | stub_name, FALSE, FALSE); |
721956f4 AM |
3009 | if (h != NULL) |
3010 | h->stub_cache = stub_entry; | |
3011 | ||
3012 | free (stub_name); | |
3013 | } | |
3014 | ||
3015 | return stub_entry; | |
3016 | } | |
3017 | ||
3018 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3019 | stub entry are initialised. */ | |
3020 | ||
3021 | static struct ppc_stub_hash_entry * | |
4ce794b7 AM |
3022 | ppc_add_stub (const char *stub_name, |
3023 | asection *section, | |
3024 | struct ppc_link_hash_table *htab) | |
721956f4 AM |
3025 | { |
3026 | asection *link_sec; | |
3027 | asection *stub_sec; | |
3028 | struct ppc_stub_hash_entry *stub_entry; | |
3029 | ||
3030 | link_sec = htab->stub_group[section->id].link_sec; | |
3031 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3032 | if (stub_sec == NULL) | |
3033 | { | |
3034 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3035 | if (stub_sec == NULL) | |
3036 | { | |
d4c88bbb | 3037 | size_t namelen; |
721956f4 AM |
3038 | bfd_size_type len; |
3039 | char *s_name; | |
3040 | ||
d4c88bbb AM |
3041 | namelen = strlen (link_sec->name); |
3042 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3043 | s_name = bfd_alloc (htab->stub_bfd, len); |
3044 | if (s_name == NULL) | |
3045 | return NULL; | |
3046 | ||
d4c88bbb AM |
3047 | memcpy (s_name, link_sec->name, namelen); |
3048 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3049 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3050 | if (stub_sec == NULL) | |
3051 | return NULL; | |
3052 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3053 | } | |
3054 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3055 | } | |
3056 | ||
3057 | /* Enter this entry into the linker stub hash table. */ | |
3058 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3059 | TRUE, FALSE); |
721956f4 AM |
3060 | if (stub_entry == NULL) |
3061 | { | |
3062 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
3063 | bfd_archive_filename (section->owner), | |
3064 | stub_name); | |
3065 | return NULL; | |
3066 | } | |
3067 | ||
3068 | stub_entry->stub_sec = stub_sec; | |
3069 | stub_entry->stub_offset = 0; | |
3070 | stub_entry->id_sec = link_sec; | |
3071 | return stub_entry; | |
3072 | } | |
3073 | ||
82bd7b59 AM |
3074 | /* Create sections for linker generated code. */ |
3075 | ||
b34976b6 | 3076 | static bfd_boolean |
4ce794b7 | 3077 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) |
82bd7b59 AM |
3078 | { |
3079 | struct ppc_link_hash_table *htab; | |
3080 | flagword flags; | |
3081 | ||
3082 | htab = ppc_hash_table (info); | |
3083 | ||
3084 | /* Create .sfpr for code to save and restore fp regs. */ | |
3085 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3086 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3087 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3088 | if (htab->sfpr == NULL |
3089 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3090 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3091 | return FALSE; |
82bd7b59 | 3092 | |
721956f4 | 3093 | /* Create .glink for lazy dynamic linking support. */ |
4ce794b7 AM |
3094 | htab->glink = bfd_make_section_anyway (dynobj, ".glink"); |
3095 | if (htab->glink == NULL | |
3096 | || ! bfd_set_section_flags (dynobj, htab->glink, flags) | |
3097 | || ! bfd_set_section_alignment (dynobj, htab->glink, 2)) | |
b34976b6 | 3098 | return FALSE; |
82bd7b59 | 3099 | |
721956f4 AM |
3100 | /* Create .branch_lt for plt_branch stubs. */ |
3101 | flags = (SEC_ALLOC | SEC_LOAD | |
3102 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3103 | htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt"); |
3104 | if (htab->brlt == NULL | |
3105 | || ! bfd_set_section_flags (dynobj, htab->brlt, flags) | |
3106 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
b34976b6 | 3107 | return FALSE; |
721956f4 AM |
3108 | |
3109 | if (info->shared) | |
3110 | { | |
3111 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3112 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
4ce794b7 AM |
3113 | htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
3114 | if (!htab->relbrlt | |
3115 | || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags) | |
3116 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
b34976b6 | 3117 | return FALSE; |
721956f4 | 3118 | } |
b34976b6 | 3119 | return TRUE; |
82bd7b59 AM |
3120 | } |
3121 | ||
65f38f15 AM |
3122 | /* Create .got and .rela.got sections in DYNOBJ, and set up |
3123 | shortcuts to them in our hash table. */ | |
3124 | ||
b34976b6 | 3125 | static bfd_boolean |
4ce794b7 | 3126 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
65f38f15 AM |
3127 | { |
3128 | struct ppc_link_hash_table *htab; | |
3129 | ||
3130 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 3131 | return FALSE; |
65f38f15 AM |
3132 | |
3133 | htab = ppc_hash_table (info); | |
4ce794b7 AM |
3134 | htab->got = bfd_get_section_by_name (dynobj, ".got"); |
3135 | if (!htab->got) | |
65f38f15 AM |
3136 | abort (); |
3137 | ||
4ce794b7 AM |
3138 | htab->relgot = bfd_make_section (dynobj, ".rela.got"); |
3139 | if (!htab->relgot | |
3140 | || ! bfd_set_section_flags (dynobj, htab->relgot, | |
65f38f15 AM |
3141 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS |
3142 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3143 | | SEC_READONLY)) | |
4ce794b7 | 3144 | || ! bfd_set_section_alignment (dynobj, htab->relgot, 3)) |
b34976b6 AM |
3145 | return FALSE; |
3146 | return TRUE; | |
65f38f15 | 3147 | } |
5bd4f169 | 3148 | |
82bd7b59 | 3149 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3150 | |
b34976b6 | 3151 | static bfd_boolean |
4ce794b7 | 3152 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
5bd4f169 | 3153 | { |
65f38f15 | 3154 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3155 | |
65f38f15 | 3156 | htab = ppc_hash_table (info); |
4ce794b7 | 3157 | if (!htab->got && !create_got_section (dynobj, info)) |
b34976b6 | 3158 | return FALSE; |
5bd4f169 | 3159 | |
65f38f15 | 3160 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3161 | return FALSE; |
65f38f15 | 3162 | |
4ce794b7 AM |
3163 | htab->plt = bfd_get_section_by_name (dynobj, ".plt"); |
3164 | htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3165 | htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
65f38f15 | 3166 | if (!info->shared) |
4ce794b7 | 3167 | htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss"); |
65f38f15 | 3168 | |
4ce794b7 AM |
3169 | if (!htab->plt || !htab->relplt || !htab->dynbss |
3170 | || (!info->shared && !htab->relbss)) | |
65f38f15 AM |
3171 | abort (); |
3172 | ||
b34976b6 | 3173 | return TRUE; |
5bd4f169 AM |
3174 | } |
3175 | ||
65f38f15 AM |
3176 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3177 | ||
3178 | static void | |
4ce794b7 AM |
3179 | ppc64_elf_copy_indirect_symbol (struct elf_backend_data *bed ATTRIBUTE_UNUSED, |
3180 | struct elf_link_hash_entry *dir, | |
3181 | struct elf_link_hash_entry *ind) | |
65f38f15 AM |
3182 | { |
3183 | struct ppc_link_hash_entry *edir, *eind; | |
81848ca0 | 3184 | flagword mask; |
65f38f15 AM |
3185 | |
3186 | edir = (struct ppc_link_hash_entry *) dir; | |
3187 | eind = (struct ppc_link_hash_entry *) ind; | |
3188 | ||
411e1bfb | 3189 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3190 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3191 | { |
bbd7ec4a AM |
3192 | if (edir->dyn_relocs != NULL) |
3193 | { | |
3194 | struct ppc_dyn_relocs **pp; | |
3195 | struct ppc_dyn_relocs *p; | |
3196 | ||
411e1bfb | 3197 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3198 | abort (); |
3199 | ||
3200 | /* Add reloc counts against the weak sym to the strong sym | |
3201 | list. Merge any entries against the same section. */ | |
3202 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3203 | { | |
3204 | struct ppc_dyn_relocs *q; | |
3205 | ||
3206 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3207 | if (q->sec == p->sec) | |
3208 | { | |
3209 | q->pc_count += p->pc_count; | |
3210 | q->count += p->count; | |
3211 | *pp = p->next; | |
3212 | break; | |
3213 | } | |
3214 | if (q == NULL) | |
3215 | pp = &p->next; | |
3216 | } | |
3217 | *pp = edir->dyn_relocs; | |
3218 | } | |
3219 | ||
65f38f15 AM |
3220 | edir->dyn_relocs = eind->dyn_relocs; |
3221 | eind->dyn_relocs = NULL; | |
3222 | } | |
65f38f15 | 3223 | |
6349e628 AM |
3224 | edir->is_func |= eind->is_func; |
3225 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
3226 | edir->is_entry |= eind->is_entry; | |
58ac9f71 | 3227 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3228 | |
81848ca0 AM |
3229 | mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR |
3230 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF); | |
3231 | /* If called to transfer flags for a weakdef during processing | |
3232 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
3233 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3234 | if (ELIMINATE_COPY_RELOCS | |
3235 | && eind->elf.root.type != bfd_link_hash_indirect | |
3236 | && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
3237 | mask &= ~ELF_LINK_NON_GOT_REF; | |
3238 | ||
3239 | edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask; | |
6349e628 AM |
3240 | |
3241 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3242 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3243 | return; | |
3244 | ||
81848ca0 AM |
3245 | /* Copy over got entries that we may have already seen to the |
3246 | symbol which just became indirect. */ | |
411e1bfb AM |
3247 | if (eind->elf.got.glist != NULL) |
3248 | { | |
3249 | if (edir->elf.got.glist != NULL) | |
3250 | { | |
3251 | struct got_entry **entp; | |
3252 | struct got_entry *ent; | |
3253 | ||
3254 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3255 | { | |
3256 | struct got_entry *dent; | |
3257 | ||
3258 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3259 | if (dent->addend == ent->addend | |
3260 | && dent->tls_type == ent->tls_type) | |
3261 | { | |
3262 | dent->got.refcount += ent->got.refcount; | |
3263 | *entp = ent->next; | |
3264 | break; | |
3265 | } | |
3266 | if (dent == NULL) | |
3267 | entp = &ent->next; | |
3268 | } | |
3269 | *entp = edir->elf.got.glist; | |
3270 | } | |
3271 | ||
3272 | edir->elf.got.glist = eind->elf.got.glist; | |
3273 | eind->elf.got.glist = NULL; | |
3274 | } | |
3275 | ||
3276 | /* And plt entries. */ | |
3277 | if (eind->elf.plt.plist != NULL) | |
3278 | { | |
3279 | if (edir->elf.plt.plist != NULL) | |
3280 | { | |
3281 | struct plt_entry **entp; | |
3282 | struct plt_entry *ent; | |
3283 | ||
3284 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3285 | { | |
3286 | struct plt_entry *dent; | |
3287 | ||
3288 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3289 | if (dent->addend == ent->addend) | |
3290 | { | |
3291 | dent->plt.refcount += ent->plt.refcount; | |
3292 | *entp = ent->next; | |
3293 | break; | |
3294 | } | |
3295 | if (dent == NULL) | |
3296 | entp = &ent->next; | |
3297 | } | |
3298 | *entp = edir->elf.plt.plist; | |
3299 | } | |
3300 | ||
3301 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3302 | eind->elf.plt.plist = NULL; | |
3303 | } | |
3304 | ||
411e1bfb AM |
3305 | if (edir->elf.dynindx == -1) |
3306 | { | |
3307 | edir->elf.dynindx = eind->elf.dynindx; | |
3308 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3309 | eind->elf.dynindx = -1; | |
3310 | eind->elf.dynstr_index = 0; | |
3311 | } | |
3312 | else | |
3313 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3314 | } | |
3315 | ||
3316 | /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and | |
3317 | symbols undefined on the command-line. */ | |
3318 | ||
3319 | bfd_boolean | |
4ce794b7 | 3320 | ppc64_elf_mark_entry_syms (struct bfd_link_info *info) |
411e1bfb AM |
3321 | { |
3322 | struct ppc_link_hash_table *htab; | |
3323 | struct bfd_sym_chain *sym; | |
3324 | ||
3325 | htab = ppc_hash_table (info); | |
3326 | for (sym = info->gc_sym_list; sym; sym = sym->next) | |
3327 | { | |
3328 | struct elf_link_hash_entry *h; | |
3329 | ||
3330 | h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
3331 | if (h != NULL) | |
3332 | ((struct ppc_link_hash_entry *) h)->is_entry = 1; | |
3333 | } | |
3334 | return TRUE; | |
3335 | } | |
3336 | ||
3337 | static bfd_boolean | |
4ce794b7 AM |
3338 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
3339 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
411e1bfb AM |
3340 | { |
3341 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 3342 | char *local_got_tls_masks; |
411e1bfb AM |
3343 | |
3344 | if (local_got_ents == NULL) | |
3345 | { | |
3346 | bfd_size_type size = symtab_hdr->sh_info; | |
3347 | ||
e7b938ca | 3348 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
4ce794b7 | 3349 | local_got_ents = bfd_zalloc (abfd, size); |
411e1bfb AM |
3350 | if (local_got_ents == NULL) |
3351 | return FALSE; | |
3352 | elf_local_got_ents (abfd) = local_got_ents; | |
3353 | } | |
3354 | ||
3355 | if ((tls_type & TLS_EXPLICIT) == 0) | |
3356 | { | |
3357 | struct got_entry *ent; | |
3358 | ||
3359 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
3360 | if (ent->addend == r_addend && ent->tls_type == tls_type) | |
3361 | break; | |
3362 | if (ent == NULL) | |
3363 | { | |
3364 | bfd_size_type amt = sizeof (*ent); | |
4ce794b7 | 3365 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3366 | if (ent == NULL) |
3367 | return FALSE; | |
3368 | ent->next = local_got_ents[r_symndx]; | |
3369 | ent->addend = r_addend; | |
3370 | ent->tls_type = tls_type; | |
3371 | ent->got.refcount = 0; | |
3372 | local_got_ents[r_symndx] = ent; | |
3373 | } | |
3374 | ent->got.refcount += 1; | |
3375 | } | |
3376 | ||
e7b938ca AM |
3377 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
3378 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 3379 | return TRUE; |
65f38f15 AM |
3380 | } |
3381 | ||
411e1bfb | 3382 | static bfd_boolean |
4ce794b7 | 3383 | update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend) |
1e2f5b6e | 3384 | { |
411e1bfb | 3385 | struct plt_entry *ent; |
1e2f5b6e | 3386 | |
411e1bfb AM |
3387 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
3388 | if (ent->addend == addend) | |
3389 | break; | |
3390 | if (ent == NULL) | |
1e2f5b6e | 3391 | { |
411e1bfb | 3392 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3393 | ent = bfd_alloc (abfd, amt); |
411e1bfb AM |
3394 | if (ent == NULL) |
3395 | return FALSE; | |
3396 | ent->next = eh->elf.plt.plist; | |
3397 | ent->addend = addend; | |
3398 | ent->plt.refcount = 0; | |
3399 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 3400 | } |
411e1bfb AM |
3401 | ent->plt.refcount += 1; |
3402 | eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
3403 | eh->is_func = 1; | |
b34976b6 | 3404 | return TRUE; |
1e2f5b6e AM |
3405 | } |
3406 | ||
5bd4f169 | 3407 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 3408 | calculate needed space in the global offset table, procedure |
5d1634d7 | 3409 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 3410 | |
b34976b6 | 3411 | static bfd_boolean |
4ce794b7 AM |
3412 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
3413 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 3414 | { |
65f38f15 | 3415 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
3416 | Elf_Internal_Shdr *symtab_hdr; |
3417 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3418 | const Elf_Internal_Rela *rel; | |
3419 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 3420 | asection *sreloc; |
1e2f5b6e | 3421 | asection **opd_sym_map; |
5bd4f169 AM |
3422 | |
3423 | if (info->relocateable) | |
b34976b6 | 3424 | return TRUE; |
5bd4f169 | 3425 | |
65f38f15 | 3426 | htab = ppc_hash_table (info); |
5bd4f169 | 3427 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
3428 | |
3429 | sym_hashes = elf_sym_hashes (abfd); | |
3430 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
3431 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
3432 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
3433 | |
3434 | sreloc = NULL; | |
1e2f5b6e AM |
3435 | opd_sym_map = NULL; |
3436 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
3437 | { | |
3438 | /* Garbage collection needs some extra help with .opd sections. | |
3439 | We don't want to necessarily keep everything referenced by | |
3440 | relocs in .opd, as that would keep all functions. Instead, | |
3441 | if we reference an .opd symbol (a function descriptor), we | |
3442 | want to keep the function code symbol's section. This is | |
3443 | easy for global symbols, but for local syms we need to keep | |
3444 | information about the associated function section. Later, if | |
3445 | edit_opd deletes entries, we'll use this array to adjust | |
3446 | local syms in .opd. */ | |
3447 | union opd_info { | |
3448 | asection *func_section; | |
3449 | long entry_adjust; | |
3450 | }; | |
3451 | bfd_size_type amt; | |
3452 | ||
3453 | amt = sec->_raw_size * sizeof (union opd_info) / 24; | |
4ce794b7 | 3454 | opd_sym_map = bfd_zalloc (abfd, amt); |
1e2f5b6e | 3455 | if (opd_sym_map == NULL) |
b34976b6 | 3456 | return FALSE; |
f0abc2a1 | 3457 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 3458 | } |
5bd4f169 | 3459 | |
82bd7b59 AM |
3460 | if (htab->elf.dynobj == NULL) |
3461 | htab->elf.dynobj = abfd; | |
3462 | if (htab->sfpr == NULL | |
3463 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 3464 | return FALSE; |
82bd7b59 | 3465 | |
5bd4f169 AM |
3466 | rel_end = relocs + sec->reloc_count; |
3467 | for (rel = relocs; rel < rel_end; rel++) | |
3468 | { | |
3469 | unsigned long r_symndx; | |
3470 | struct elf_link_hash_entry *h; | |
04c9666a | 3471 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 3472 | int tls_type = 0; |
5bd4f169 AM |
3473 | |
3474 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3475 | if (r_symndx < symtab_hdr->sh_info) | |
3476 | h = NULL; | |
3477 | else | |
3478 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3479 | ||
4ce794b7 | 3480 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3481 | switch (r_type) |
5bd4f169 | 3482 | { |
411e1bfb AM |
3483 | case R_PPC64_GOT_TLSLD16: |
3484 | case R_PPC64_GOT_TLSLD16_LO: | |
3485 | case R_PPC64_GOT_TLSLD16_HI: | |
3486 | case R_PPC64_GOT_TLSLD16_HA: | |
3487 | htab->tlsld_got.refcount += 1; | |
951fd09b | 3488 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
3489 | goto dogottls; |
3490 | ||
3491 | case R_PPC64_GOT_TLSGD16: | |
3492 | case R_PPC64_GOT_TLSGD16_LO: | |
3493 | case R_PPC64_GOT_TLSGD16_HI: | |
3494 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 3495 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
3496 | goto dogottls; |
3497 | ||
3498 | case R_PPC64_GOT_TPREL16_DS: | |
3499 | case R_PPC64_GOT_TPREL16_LO_DS: | |
3500 | case R_PPC64_GOT_TPREL16_HI: | |
3501 | case R_PPC64_GOT_TPREL16_HA: | |
3502 | if (info->shared) | |
3503 | info->flags |= DF_STATIC_TLS; | |
3504 | tls_type = TLS_TLS | TLS_TPREL; | |
3505 | goto dogottls; | |
3506 | ||
3507 | case R_PPC64_GOT_DTPREL16_DS: | |
3508 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
3509 | case R_PPC64_GOT_DTPREL16_HI: | |
3510 | case R_PPC64_GOT_DTPREL16_HA: | |
3511 | tls_type = TLS_TLS | TLS_DTPREL; | |
3512 | dogottls: | |
3513 | sec->has_tls_reloc = 1; | |
3514 | /* Fall thru */ | |
3515 | ||
5bd4f169 | 3516 | case R_PPC64_GOT16: |
5bd4f169 | 3517 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
3518 | case R_PPC64_GOT16_HA: |
3519 | case R_PPC64_GOT16_HI: | |
3520 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 3521 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 3522 | /* This symbol requires a global offset table entry. */ |
ad8e1ba5 | 3523 | sec->has_gp_reloc = 1; |
4ce794b7 | 3524 | if (htab->got == NULL |
82bd7b59 | 3525 | && !create_got_section (htab->elf.dynobj, info)) |
b34976b6 | 3526 | return FALSE; |
5bd4f169 AM |
3527 | |
3528 | if (h != NULL) | |
3529 | { | |
411e1bfb AM |
3530 | struct ppc_link_hash_entry *eh; |
3531 | struct got_entry *ent; | |
65f38f15 | 3532 | |
411e1bfb AM |
3533 | eh = (struct ppc_link_hash_entry *) h; |
3534 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
3535 | if (ent->addend == rel->r_addend | |
3536 | && ent->tls_type == tls_type) | |
3537 | break; | |
3538 | if (ent == NULL) | |
5bd4f169 | 3539 | { |
411e1bfb | 3540 | bfd_size_type amt = sizeof (*ent); |
4ce794b7 | 3541 | ent = bfd_alloc (abfd, amt); |
411e1bfb | 3542 | if (ent == NULL) |
b34976b6 | 3543 | return FALSE; |
411e1bfb AM |
3544 | ent->next = eh->elf.got.glist; |
3545 | ent->addend = rel->r_addend; | |
3546 | ent->tls_type = tls_type; | |
3547 | ent->got.refcount = 0; | |
3548 | eh->elf.got.glist = ent; | |
5bd4f169 | 3549 | } |
411e1bfb | 3550 | ent->got.refcount += 1; |
e7b938ca | 3551 | eh->tls_mask |= tls_type; |
5bd4f169 | 3552 | } |
411e1bfb AM |
3553 | else |
3554 | /* This is a global offset table entry for a local symbol. */ | |
3555 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3556 | rel->r_addend, tls_type)) | |
3557 | return FALSE; | |
5bd4f169 AM |
3558 | break; |
3559 | ||
5bd4f169 | 3560 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
3561 | case R_PPC64_PLT16_HI: |
3562 | case R_PPC64_PLT16_LO: | |
3563 | case R_PPC64_PLT32: | |
3564 | case R_PPC64_PLT64: | |
5bd4f169 | 3565 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
3566 | actually build the entry in adjust_dynamic_symbol, |
3567 | because this might be a case of linking PIC code without | |
3568 | linking in any dynamic objects, in which case we don't | |
3569 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
3570 | if (h == NULL) |
3571 | { | |
3572 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 3573 | table entry for a local symbol. */ |
5bd4f169 | 3574 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3575 | return FALSE; |
5bd4f169 | 3576 | } |
411e1bfb AM |
3577 | else |
3578 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
3579 | rel->r_addend)) | |
3580 | return FALSE; | |
5bd4f169 AM |
3581 | break; |
3582 | ||
3583 | /* The following relocations don't need to propagate the | |
3584 | relocation if linking a shared object since they are | |
3585 | section relative. */ | |
3586 | case R_PPC64_SECTOFF: | |
3587 | case R_PPC64_SECTOFF_LO: | |
3588 | case R_PPC64_SECTOFF_HI: | |
3589 | case R_PPC64_SECTOFF_HA: | |
3590 | case R_PPC64_SECTOFF_DS: | |
3591 | case R_PPC64_SECTOFF_LO_DS: | |
411e1bfb AM |
3592 | case R_PPC64_DTPREL16: |
3593 | case R_PPC64_DTPREL16_LO: | |
3594 | case R_PPC64_DTPREL16_HI: | |
3595 | case R_PPC64_DTPREL16_HA: | |
3596 | case R_PPC64_DTPREL16_DS: | |
3597 | case R_PPC64_DTPREL16_LO_DS: | |
3598 | case R_PPC64_DTPREL16_HIGHER: | |
3599 | case R_PPC64_DTPREL16_HIGHERA: | |
3600 | case R_PPC64_DTPREL16_HIGHEST: | |
3601 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
3602 | break; |
3603 | ||
ad8e1ba5 AM |
3604 | /* Nor do these. */ |
3605 | case R_PPC64_TOC16: | |
3606 | case R_PPC64_TOC16_LO: | |
3607 | case R_PPC64_TOC16_HI: | |
3608 | case R_PPC64_TOC16_HA: | |
3609 | case R_PPC64_TOC16_DS: | |
3610 | case R_PPC64_TOC16_LO_DS: | |
3611 | sec->has_gp_reloc = 1; | |
3612 | break; | |
3613 | ||
5bd4f169 AM |
3614 | /* This relocation describes the C++ object vtable hierarchy. |
3615 | Reconstruct it for later use during GC. */ | |
3616 | case R_PPC64_GNU_VTINHERIT: | |
3617 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3618 | return FALSE; |
5bd4f169 AM |
3619 | break; |
3620 | ||
3621 | /* This relocation describes which C++ vtable entries are actually | |
3622 | used. Record for later use during GC. */ | |
3623 | case R_PPC64_GNU_VTENTRY: | |
3624 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3625 | return FALSE; |
5bd4f169 AM |
3626 | break; |
3627 | ||
721956f4 AM |
3628 | case R_PPC64_REL14: |
3629 | case R_PPC64_REL14_BRTAKEN: | |
3630 | case R_PPC64_REL14_BRNTAKEN: | |
3631 | htab->has_14bit_branch = 1; | |
3632 | /* Fall through. */ | |
3633 | ||
5d1634d7 | 3634 | case R_PPC64_REL24: |
e86ce104 AM |
3635 | if (h != NULL |
3636 | && h->root.root.string[0] == '.' | |
3637 | && h->root.root.string[1] != 0) | |
5d1634d7 AM |
3638 | { |
3639 | /* We may need a .plt entry if the function this reloc | |
3640 | refers to is in a shared lib. */ | |
411e1bfb AM |
3641 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
3642 | rel->r_addend)) | |
3643 | return FALSE; | |
3644 | if (h == htab->tls_get_addr) | |
3645 | sec->has_tls_reloc = 1; | |
a48ebf4d AM |
3646 | else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15) |
3647 | == 0) | |
3648 | && (h->root.root.string[15] == 0 | |
3649 | || h->root.root.string[15] == '@')) | |
411e1bfb AM |
3650 | { |
3651 | htab->tls_get_addr = h; | |
3652 | sec->has_tls_reloc = 1; | |
3653 | } | |
3654 | } | |
3655 | break; | |
3656 | ||
3657 | case R_PPC64_TPREL64: | |
3658 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
3659 | if (info->shared) | |
3660 | info->flags |= DF_STATIC_TLS; | |
3661 | goto dotlstoc; | |
3662 | ||
3663 | case R_PPC64_DTPMOD64: | |
3664 | if (rel + 1 < rel_end | |
3665 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
3666 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 3667 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 3668 | else |
951fd09b | 3669 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
3670 | goto dotlstoc; |
3671 | ||
3672 | case R_PPC64_DTPREL64: | |
3673 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
3674 | if (rel != relocs | |
3675 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
3676 | && rel[-1].r_offset == rel->r_offset - 8) | |
3677 | /* This is the second reloc of a dtpmod, dtprel pair. | |
3678 | Don't mark with TLS_DTPREL. */ | |
3679 | goto dodyn; | |
3680 | ||
3681 | dotlstoc: | |
3682 | sec->has_tls_reloc = 1; | |
3683 | if (h != NULL) | |
3684 | { | |
3685 | struct ppc_link_hash_entry *eh; | |
3686 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 3687 | eh->tls_mask |= tls_type; |
411e1bfb AM |
3688 | } |
3689 | else | |
3690 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3691 | rel->r_addend, tls_type)) | |
3692 | return FALSE; | |
3693 | ||
3694 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3695 | { | |
e7b938ca | 3696 | /* One extra to simplify get_tls_mask. */ |
951fd09b | 3697 | bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1; |
4ce794b7 | 3698 | ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt); |
411e1bfb AM |
3699 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) |
3700 | return FALSE; | |
3701 | } | |
3702 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
3703 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
3704 | |
3705 | /* Mark the second slot of a GD or LD entry. | |
3706 | -1 to indicate GD and -2 to indicate LD. */ | |
3707 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
3708 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
3709 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
3710 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
3711 | goto dodyn; |
3712 | ||
3713 | case R_PPC64_TPREL16: | |
3714 | case R_PPC64_TPREL16_LO: | |
3715 | case R_PPC64_TPREL16_HI: | |
3716 | case R_PPC64_TPREL16_HA: | |
3717 | case R_PPC64_TPREL16_DS: | |
3718 | case R_PPC64_TPREL16_LO_DS: | |
3719 | case R_PPC64_TPREL16_HIGHER: | |
3720 | case R_PPC64_TPREL16_HIGHERA: | |
3721 | case R_PPC64_TPREL16_HIGHEST: | |
3722 | case R_PPC64_TPREL16_HIGHESTA: | |
3723 | if (info->shared) | |
3724 | { | |
3725 | info->flags |= DF_STATIC_TLS; | |
3726 | goto dodyn; | |
5d1634d7 AM |
3727 | } |
3728 | break; | |
3729 | ||
e86ce104 | 3730 | case R_PPC64_ADDR64: |
1e2f5b6e | 3731 | if (opd_sym_map != NULL |
e86ce104 AM |
3732 | && h != NULL |
3733 | && h->root.root.string[0] == '.' | |
3734 | && h->root.root.string[1] != 0) | |
3735 | { | |
3736 | struct elf_link_hash_entry *fdh; | |
3737 | ||
3738 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 3739 | FALSE, FALSE, FALSE); |
e86ce104 AM |
3740 | if (fdh != NULL) |
3741 | { | |
e86ce104 | 3742 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 3743 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
e86ce104 | 3744 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
721956f4 | 3745 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
3746 | } |
3747 | } | |
1e2f5b6e AM |
3748 | if (opd_sym_map != NULL |
3749 | && h == NULL | |
3750 | && rel + 1 < rel_end | |
4ce794b7 | 3751 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
1e2f5b6e AM |
3752 | { |
3753 | asection *s; | |
3754 | ||
3755 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3756 | r_symndx); | |
3757 | if (s == NULL) | |
b34976b6 | 3758 | return FALSE; |
1e2f5b6e AM |
3759 | else if (s != sec) |
3760 | opd_sym_map[rel->r_offset / 24] = s; | |
3761 | } | |
e86ce104 AM |
3762 | /* Fall through. */ |
3763 | ||
04c9666a | 3764 | case R_PPC64_REL30: |
5bd4f169 | 3765 | case R_PPC64_REL32: |
04c9666a | 3766 | case R_PPC64_REL64: |
65f38f15 AM |
3767 | case R_PPC64_ADDR14: |
3768 | case R_PPC64_ADDR14_BRNTAKEN: | |
3769 | case R_PPC64_ADDR14_BRTAKEN: | |
3770 | case R_PPC64_ADDR16: | |
3771 | case R_PPC64_ADDR16_DS: | |
3772 | case R_PPC64_ADDR16_HA: | |
3773 | case R_PPC64_ADDR16_HI: | |
3774 | case R_PPC64_ADDR16_HIGHER: | |
3775 | case R_PPC64_ADDR16_HIGHERA: | |
3776 | case R_PPC64_ADDR16_HIGHEST: | |
3777 | case R_PPC64_ADDR16_HIGHESTA: | |
3778 | case R_PPC64_ADDR16_LO: | |
3779 | case R_PPC64_ADDR16_LO_DS: | |
3780 | case R_PPC64_ADDR24: | |
65f38f15 | 3781 | case R_PPC64_ADDR32: |
65f38f15 AM |
3782 | case R_PPC64_UADDR16: |
3783 | case R_PPC64_UADDR32: | |
3784 | case R_PPC64_UADDR64: | |
5bd4f169 | 3785 | case R_PPC64_TOC: |
81848ca0 AM |
3786 | if (h != NULL && !info->shared) |
3787 | /* We may need a copy reloc. */ | |
3788 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3789 | ||
41bd81ab | 3790 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 3791 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 3792 | break; |
e86ce104 | 3793 | |
f4656909 AM |
3794 | /* Don't propagate relocs that the dynamic linker won't relocate. */ |
3795 | if ((sec->flags & SEC_ALLOC) == 0) | |
3796 | break; | |
3797 | ||
65f38f15 AM |
3798 | /* If we are creating a shared library, and this is a reloc |
3799 | against a global symbol, or a non PC relative reloc | |
3800 | against a local symbol, then we need to copy the reloc | |
3801 | into the shared library. However, if we are linking with | |
3802 | -Bsymbolic, we do not need to copy a reloc against a | |
3803 | global symbol which is defined in an object we are | |
3804 | including in the link (i.e., DEF_REGULAR is set). At | |
3805 | this point we have not seen all the input files, so it is | |
3806 | possible that DEF_REGULAR is not set now but will be set | |
3807 | later (it is never cleared). In case of a weak definition, | |
3808 | DEF_REGULAR may be cleared later by a strong definition in | |
3809 | a shared library. We account for that possibility below by | |
f4656909 | 3810 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
3811 | table entry. A similar situation occurs when creating |
3812 | shared libraries and symbol visibility changes render the | |
3813 | symbol local. | |
3814 | ||
3815 | If on the other hand, we are creating an executable, we | |
3816 | may need to keep relocations for symbols satisfied by a | |
3817 | dynamic library if we manage to avoid copy relocs for the | |
3818 | symbol. */ | |
411e1bfb | 3819 | dodyn: |
65f38f15 | 3820 | if ((info->shared |
411e1bfb | 3821 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
3822 | || (h != NULL |
3823 | && (! info->symbolic | |
3824 | || h->root.type == bfd_link_hash_defweak | |
3825 | || (h->elf_link_hash_flags | |
3826 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
f4656909 AM |
3827 | || (ELIMINATE_COPY_RELOCS |
3828 | && !info->shared | |
65f38f15 AM |
3829 | && h != NULL |
3830 | && (h->root.type == bfd_link_hash_defweak | |
3831 | || (h->elf_link_hash_flags | |
3832 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
5bd4f169 | 3833 | { |
ec338859 AM |
3834 | struct ppc_dyn_relocs *p; |
3835 | struct ppc_dyn_relocs **head; | |
3836 | ||
65f38f15 AM |
3837 | /* We must copy these reloc types into the output file. |
3838 | Create a reloc section in dynobj and make room for | |
3839 | this reloc. */ | |
5bd4f169 AM |
3840 | if (sreloc == NULL) |
3841 | { | |
3842 | const char *name; | |
65f38f15 | 3843 | bfd *dynobj; |
5bd4f169 AM |
3844 | |
3845 | name = (bfd_elf_string_from_elf_section | |
3846 | (abfd, | |
3847 | elf_elfheader (abfd)->e_shstrndx, | |
3848 | elf_section_data (sec)->rel_hdr.sh_name)); | |
3849 | if (name == NULL) | |
b34976b6 | 3850 | return FALSE; |
5bd4f169 | 3851 | |
65f38f15 AM |
3852 | if (strncmp (name, ".rela", 5) != 0 |
3853 | || strcmp (bfd_get_section_name (abfd, sec), | |
3854 | name + 5) != 0) | |
3855 | { | |
3856 | (*_bfd_error_handler) | |
3857 | (_("%s: bad relocation section name `%s\'"), | |
3858 | bfd_archive_filename (abfd), name); | |
5d1634d7 | 3859 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
3860 | } |
3861 | ||
65f38f15 | 3862 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
3863 | sreloc = bfd_get_section_by_name (dynobj, name); |
3864 | if (sreloc == NULL) | |
3865 | { | |
3866 | flagword flags; | |
3867 | ||
3868 | sreloc = bfd_make_section (dynobj, name); | |
3869 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
3870 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3871 | if ((sec->flags & SEC_ALLOC) != 0) | |
3872 | flags |= SEC_ALLOC | SEC_LOAD; | |
3873 | if (sreloc == NULL | |
3874 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 3875 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 3876 | return FALSE; |
5bd4f169 | 3877 | } |
65f38f15 | 3878 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
3879 | } |
3880 | ||
65f38f15 AM |
3881 | /* If this is a global symbol, we count the number of |
3882 | relocations we need for this symbol. */ | |
3883 | if (h != NULL) | |
3884 | { | |
ec338859 | 3885 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
3886 | } |
3887 | else | |
3888 | { | |
ec338859 AM |
3889 | /* Track dynamic relocs needed for local syms too. |
3890 | We really need local syms available to do this | |
3891 | easily. Oh well. */ | |
3892 | ||
3893 | asection *s; | |
3894 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
3895 | sec, r_symndx); | |
3896 | if (s == NULL) | |
b34976b6 | 3897 | return FALSE; |
ec338859 AM |
3898 | |
3899 | head = ((struct ppc_dyn_relocs **) | |
3900 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 3901 | } |
ec338859 AM |
3902 | |
3903 | p = *head; | |
3904 | if (p == NULL || p->sec != sec) | |
3905 | { | |
4ce794b7 | 3906 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 3907 | if (p == NULL) |
b34976b6 | 3908 | return FALSE; |
ec338859 AM |
3909 | p->next = *head; |
3910 | *head = p; | |
3911 | p->sec = sec; | |
3912 | p->count = 0; | |
3913 | p->pc_count = 0; | |
3914 | } | |
3915 | ||
3916 | p->count += 1; | |
411e1bfb | 3917 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 3918 | p->pc_count += 1; |
65f38f15 | 3919 | } |
5bd4f169 | 3920 | break; |
65f38f15 AM |
3921 | |
3922 | default: | |
96e0dda4 | 3923 | break; |
5bd4f169 AM |
3924 | } |
3925 | } | |
3926 | ||
b34976b6 | 3927 | return TRUE; |
5bd4f169 AM |
3928 | } |
3929 | ||
3930 | /* Return the section that should be marked against GC for a given | |
3931 | relocation. */ | |
3932 | ||
3933 | static asection * | |
4ce794b7 AM |
3934 | ppc64_elf_gc_mark_hook (asection *sec, |
3935 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
3936 | Elf_Internal_Rela *rel, | |
3937 | struct elf_link_hash_entry *h, | |
3938 | Elf_Internal_Sym *sym) | |
5bd4f169 | 3939 | { |
1e2f5b6e AM |
3940 | asection *rsec = NULL; |
3941 | ||
5bd4f169 AM |
3942 | if (h != NULL) |
3943 | { | |
04c9666a | 3944 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e | 3945 | struct ppc_link_hash_entry *fdh; |
a33d1f77 | 3946 | |
4ce794b7 | 3947 | r_type = ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3948 | switch (r_type) |
5bd4f169 AM |
3949 | { |
3950 | case R_PPC64_GNU_VTINHERIT: | |
3951 | case R_PPC64_GNU_VTENTRY: | |
3952 | break; | |
3953 | ||
3954 | default: | |
3955 | switch (h->root.type) | |
3956 | { | |
3957 | case bfd_link_hash_defined: | |
3958 | case bfd_link_hash_defweak: | |
1e2f5b6e AM |
3959 | fdh = (struct ppc_link_hash_entry *) h; |
3960 | ||
3961 | /* Function descriptor syms cause the associated | |
3962 | function code sym section to be marked. */ | |
3963 | if (fdh->is_func_descriptor) | |
3964 | rsec = fdh->oh->root.u.def.section; | |
3965 | ||
3966 | /* Function entry syms return NULL if they are in .opd | |
3967 | and are not ._start (or others undefined on the ld | |
3968 | command line). Thus we avoid marking all function | |
b34976b6 | 3969 | sections, as all functions are referenced in .opd. */ |
1e2f5b6e AM |
3970 | else if ((fdh->oh != NULL |
3971 | && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry) | |
f0abc2a1 | 3972 | || ppc64_elf_section_data (sec)->opd.func_sec == NULL) |
1e2f5b6e AM |
3973 | rsec = h->root.u.def.section; |
3974 | break; | |
5bd4f169 AM |
3975 | |
3976 | case bfd_link_hash_common: | |
1e2f5b6e AM |
3977 | rsec = h->root.u.c.p->section; |
3978 | break; | |
5bd4f169 AM |
3979 | |
3980 | default: | |
3981 | break; | |
3982 | } | |
3983 | } | |
3984 | } | |
3985 | else | |
3986 | { | |
1e2f5b6e AM |
3987 | asection **opd_sym_section; |
3988 | ||
3989 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
f0abc2a1 | 3990 | opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec; |
1e2f5b6e AM |
3991 | if (opd_sym_section != NULL) |
3992 | rsec = opd_sym_section[sym->st_value / 24]; | |
f0abc2a1 | 3993 | else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL) |
1e2f5b6e | 3994 | rsec = NULL; |
5bd4f169 AM |
3995 | } |
3996 | ||
1e2f5b6e | 3997 | return rsec; |
5bd4f169 AM |
3998 | } |
3999 | ||
65f38f15 AM |
4000 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4001 | section being removed. */ | |
5bd4f169 | 4002 | |
b34976b6 | 4003 | static bfd_boolean |
4ce794b7 AM |
4004 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
4005 | asection *sec, const Elf_Internal_Rela *relocs) | |
5bd4f169 | 4006 | { |
411e1bfb | 4007 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4008 | Elf_Internal_Shdr *symtab_hdr; |
4009 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4010 | struct got_entry **local_got_ents; |
5bd4f169 | 4011 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4012 | |
ec338859 AM |
4013 | elf_section_data (sec)->local_dynrel = NULL; |
4014 | ||
411e1bfb | 4015 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4016 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4017 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4018 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4019 | |
4020 | relend = relocs + sec->reloc_count; | |
4021 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4022 | { |
4023 | unsigned long r_symndx; | |
04c9666a | 4024 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4025 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4026 | char tls_type = 0; |
5bd4f169 | 4027 | |
a33d1f77 | 4028 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 | 4029 | r_type = ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4030 | if (r_symndx >= symtab_hdr->sh_info) |
4031 | { | |
4032 | struct ppc_link_hash_entry *eh; | |
4033 | struct ppc_dyn_relocs **pp; | |
4034 | struct ppc_dyn_relocs *p; | |
4035 | ||
4036 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4037 | eh = (struct ppc_link_hash_entry *) h; | |
4038 | ||
4039 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4040 | if (p->sec == sec) | |
4041 | { | |
4042 | /* Everything must go for SEC. */ | |
4043 | *pp = p->next; | |
4044 | break; | |
4045 | } | |
4046 | } | |
4047 | ||
a33d1f77 AM |
4048 | switch (r_type) |
4049 | { | |
411e1bfb AM |
4050 | case R_PPC64_GOT_TLSLD16: |
4051 | case R_PPC64_GOT_TLSLD16_LO: | |
4052 | case R_PPC64_GOT_TLSLD16_HI: | |
4053 | case R_PPC64_GOT_TLSLD16_HA: | |
4054 | htab->tlsld_got.refcount -= 1; | |
951fd09b | 4055 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4056 | goto dogot; |
4057 | ||
4058 | case R_PPC64_GOT_TLSGD16: | |
4059 | case R_PPC64_GOT_TLSGD16_LO: | |
4060 | case R_PPC64_GOT_TLSGD16_HI: | |
4061 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4062 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4063 | goto dogot; |
4064 | ||
4065 | case R_PPC64_GOT_TPREL16_DS: | |
4066 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4067 | case R_PPC64_GOT_TPREL16_HI: | |
4068 | case R_PPC64_GOT_TPREL16_HA: | |
4069 | tls_type = TLS_TLS | TLS_TPREL; | |
4070 | goto dogot; | |
4071 | ||
4072 | case R_PPC64_GOT_DTPREL16_DS: | |
4073 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4074 | case R_PPC64_GOT_DTPREL16_HI: | |
4075 | case R_PPC64_GOT_DTPREL16_HA: | |
4076 | tls_type = TLS_TLS | TLS_DTPREL; | |
4077 | goto dogot; | |
4078 | ||
a33d1f77 AM |
4079 | case R_PPC64_GOT16: |
4080 | case R_PPC64_GOT16_DS: | |
4081 | case R_PPC64_GOT16_HA: | |
4082 | case R_PPC64_GOT16_HI: | |
4083 | case R_PPC64_GOT16_LO: | |
4084 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
4085 | dogot: |
4086 | { | |
4087 | struct got_entry *ent; | |
4088 | ||
58ac9f71 AM |
4089 | if (h != NULL) |
4090 | ent = h->got.glist; | |
411e1bfb AM |
4091 | else |
4092 | ent = local_got_ents[r_symndx]; | |
4093 | ||
4094 | for (; ent != NULL; ent = ent->next) | |
4095 | if (ent->addend == rel->r_addend | |
4096 | && ent->tls_type == tls_type) | |
4097 | break; | |
4098 | if (ent == NULL) | |
4099 | abort (); | |
4100 | if (ent->got.refcount > 0) | |
4101 | ent->got.refcount -= 1; | |
4102 | } | |
a33d1f77 | 4103 | break; |
65f38f15 | 4104 | |
a33d1f77 AM |
4105 | case R_PPC64_PLT16_HA: |
4106 | case R_PPC64_PLT16_HI: | |
4107 | case R_PPC64_PLT16_LO: | |
4108 | case R_PPC64_PLT32: | |
4109 | case R_PPC64_PLT64: | |
721956f4 AM |
4110 | case R_PPC64_REL14: |
4111 | case R_PPC64_REL14_BRNTAKEN: | |
4112 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 4113 | case R_PPC64_REL24: |
58ac9f71 | 4114 | if (h != NULL) |
5d1634d7 | 4115 | { |
411e1bfb AM |
4116 | struct plt_entry *ent; |
4117 | ||
411e1bfb AM |
4118 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4119 | if (ent->addend == rel->r_addend) | |
4120 | break; | |
4121 | if (ent == NULL) | |
4122 | abort (); | |
4123 | if (ent->plt.refcount > 0) | |
4124 | ent->plt.refcount -= 1; | |
5d1634d7 | 4125 | } |
e86ce104 | 4126 | break; |
5d1634d7 | 4127 | |
a33d1f77 AM |
4128 | default: |
4129 | break; | |
4130 | } | |
4131 | } | |
b34976b6 | 4132 | return TRUE; |
5bd4f169 AM |
4133 | } |
4134 | ||
e86ce104 AM |
4135 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
4136 | information on function code symbol entries to their corresponding | |
4137 | function descriptor symbol entries. */ | |
b34976b6 | 4138 | static bfd_boolean |
4ce794b7 | 4139 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 4140 | { |
e86ce104 | 4141 | struct bfd_link_info *info; |
65f38f15 | 4142 | struct ppc_link_hash_table *htab; |
411e1bfb | 4143 | struct plt_entry *ent; |
5bd4f169 | 4144 | |
e92d460e | 4145 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 4146 | return TRUE; |
e86ce104 | 4147 | |
e92d460e AM |
4148 | if (h->root.type == bfd_link_hash_warning) |
4149 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4150 | ||
4ce794b7 | 4151 | info = inf; |
65f38f15 | 4152 | htab = ppc_hash_table (info); |
5bd4f169 | 4153 | |
e86ce104 AM |
4154 | /* If this is a function code symbol, transfer dynamic linking |
4155 | information to the function descriptor symbol. */ | |
4156 | if (!((struct ppc_link_hash_entry *) h)->is_func) | |
b34976b6 | 4157 | return TRUE; |
e86ce104 | 4158 | |
805fc799 AM |
4159 | if (h->root.type == bfd_link_hash_undefweak |
4160 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR)) | |
b34976b6 | 4161 | htab->have_undefweak = TRUE; |
805fc799 | 4162 | |
411e1bfb AM |
4163 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4164 | if (ent->plt.refcount > 0) | |
4165 | break; | |
4166 | if (ent != NULL | |
e86ce104 AM |
4167 | && h->root.root.string[0] == '.' |
4168 | && h->root.root.string[1] != '\0') | |
5bd4f169 | 4169 | { |
721956f4 | 4170 | struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh; |
b34976b6 | 4171 | bfd_boolean force_local; |
5bd4f169 | 4172 | |
648cca2c AM |
4173 | /* Find the corresponding function descriptor symbol. Create it |
4174 | as undefined if necessary. */ | |
5bd4f169 | 4175 | |
721956f4 AM |
4176 | if (fdh == NULL) |
4177 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 4178 | FALSE, FALSE, TRUE); |
5bd4f169 | 4179 | |
d926e03d AM |
4180 | if (fdh == NULL |
4181 | && info->shared | |
4182 | && (h->root.type == bfd_link_hash_undefined | |
4183 | || h->root.type == bfd_link_hash_undefweak)) | |
648cca2c AM |
4184 | { |
4185 | bfd *abfd; | |
4186 | asymbol *newsym; | |
14a793b2 | 4187 | struct bfd_link_hash_entry *bh; |
648cca2c | 4188 | |
d926e03d | 4189 | abfd = h->root.u.undef.abfd; |
648cca2c AM |
4190 | newsym = bfd_make_empty_symbol (abfd); |
4191 | newsym->name = h->root.root.string + 1; | |
4192 | newsym->section = bfd_und_section_ptr; | |
4193 | newsym->value = 0; | |
4194 | newsym->flags = BSF_OBJECT; | |
4195 | if (h->root.type == bfd_link_hash_undefweak) | |
4196 | newsym->flags |= BSF_WEAK; | |
4197 | ||
14a793b2 | 4198 | bh = &fdh->root; |
648cca2c AM |
4199 | if ( !(_bfd_generic_link_add_one_symbol |
4200 | (info, abfd, newsym->name, newsym->flags, | |
b34976b6 | 4201 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) |
648cca2c | 4202 | { |
b34976b6 | 4203 | return FALSE; |
648cca2c | 4204 | } |
14a793b2 | 4205 | fdh = (struct elf_link_hash_entry *) bh; |
d926e03d | 4206 | fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF; |
648cca2c AM |
4207 | } |
4208 | ||
e86ce104 AM |
4209 | if (fdh != NULL |
4210 | && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
4211 | && (info->shared | |
4212 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4213 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)) | |
4214 | { | |
4215 | if (fdh->dynindx == -1) | |
4216 | if (! bfd_elf64_link_record_dynamic_symbol (info, fdh)) | |
b34976b6 | 4217 | return FALSE; |
e86ce104 AM |
4218 | fdh->elf_link_hash_flags |= (h->elf_link_hash_flags |
4219 | & (ELF_LINK_HASH_REF_REGULAR | |
4220 | | ELF_LINK_HASH_REF_DYNAMIC | |
4221 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
4222 | | ELF_LINK_NON_GOT_REF)); | |
e1fa50e7 AM |
4223 | if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
4224 | { | |
411e1bfb | 4225 | fdh->plt.plist = h->plt.plist; |
e1fa50e7 AM |
4226 | fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
4227 | } | |
e86ce104 | 4228 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 4229 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
721956f4 | 4230 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
4231 | } |
4232 | ||
4233 | /* Now that the info is on the function descriptor, clear the | |
4234 | function code sym info. Any function code syms for which we | |
4235 | don't have a definition in a regular file, we force local. | |
4236 | This prevents a shared library from exporting syms that have | |
4237 | been imported from another library. Function code syms that | |
4238 | are really in the library we must leave global to prevent the | |
e1fa50e7 | 4239 | linker dragging in a definition from a static library. */ |
ea1e4b0d AM |
4240 | force_local = (info->shared |
4241 | && ((h->elf_link_hash_flags | |
4242 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4243 | || fdh == NULL | |
4244 | || (fdh->elf_link_hash_flags | |
4245 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4246 | || (fdh->elf_link_hash_flags | |
4247 | & ELF_LINK_FORCED_LOCAL) != 0)); | |
e86ce104 AM |
4248 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
4249 | } | |
4250 | ||
b34976b6 | 4251 | return TRUE; |
e86ce104 | 4252 | } |
40b8271b | 4253 | |
82bd7b59 AM |
4254 | #define MIN_SAVE_FPR 14 |
4255 | #define MAX_SAVE_FPR 31 | |
4256 | ||
e86ce104 | 4257 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
4258 | this hook to a) provide some gcc support functions, and b) transfer |
4259 | dynamic linking information gathered so far on function code symbol | |
4260 | entries, to their corresponding function descriptor symbol entries. */ | |
b34976b6 | 4261 | static bfd_boolean |
4ce794b7 AM |
4262 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
4263 | struct bfd_link_info *info) | |
e86ce104 AM |
4264 | { |
4265 | struct ppc_link_hash_table *htab; | |
82bd7b59 AM |
4266 | unsigned int lowest_savef = MAX_SAVE_FPR + 2; |
4267 | unsigned int lowest_restf = MAX_SAVE_FPR + 2; | |
4268 | unsigned int i; | |
4269 | struct elf_link_hash_entry *h; | |
721956f4 | 4270 | bfd_byte *p; |
82bd7b59 | 4271 | char sym[10]; |
e86ce104 AM |
4272 | |
4273 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
4274 | |
4275 | if (htab->sfpr == NULL) | |
4276 | /* We don't have any relocs. */ | |
b34976b6 | 4277 | return TRUE; |
82bd7b59 AM |
4278 | |
4279 | /* First provide any missing ._savef* and ._restf* functions. */ | |
4280 | memcpy (sym, "._savef14", 10); | |
4281 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4282 | { | |
4283 | sym[7] = i / 10 + '0'; | |
4284 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4285 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4286 | if (h != NULL |
4287 | && h->root.type == bfd_link_hash_undefined) | |
4288 | { | |
4289 | if (lowest_savef > i) | |
4290 | lowest_savef = i; | |
4291 | h->root.type = bfd_link_hash_defined; | |
4292 | h->root.u.def.section = htab->sfpr; | |
4293 | h->root.u.def.value = (i - lowest_savef) * 4; | |
4294 | h->type = STT_FUNC; | |
4295 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4296 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4297 | } | |
4298 | } | |
4299 | ||
4300 | memcpy (sym, "._restf14", 10); | |
4301 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4302 | { | |
4303 | sym[7] = i / 10 + '0'; | |
4304 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4305 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4306 | if (h != NULL |
4307 | && h->root.type == bfd_link_hash_undefined) | |
4308 | { | |
4309 | if (lowest_restf > i) | |
4310 | lowest_restf = i; | |
4311 | h->root.type = bfd_link_hash_defined; | |
4312 | h->root.u.def.section = htab->sfpr; | |
4313 | h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 | |
4314 | + (i - lowest_restf) * 4); | |
4315 | h->type = STT_FUNC; | |
4316 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4317 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4318 | } | |
4319 | } | |
4320 | ||
4ce794b7 | 4321 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
805fc799 | 4322 | |
82bd7b59 AM |
4323 | htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 |
4324 | + (MAX_SAVE_FPR + 2 - lowest_restf) * 4); | |
4325 | ||
4326 | if (htab->sfpr->_raw_size == 0) | |
805fc799 AM |
4327 | { |
4328 | if (!htab->have_undefweak) | |
4329 | { | |
4330 | _bfd_strip_section_from_output (info, htab->sfpr); | |
b34976b6 | 4331 | return TRUE; |
805fc799 AM |
4332 | } |
4333 | ||
4334 | htab->sfpr->_raw_size = 4; | |
4335 | } | |
82bd7b59 | 4336 | |
4ce794b7 | 4337 | p = bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size); |
721956f4 | 4338 | if (p == NULL) |
b34976b6 | 4339 | return FALSE; |
721956f4 AM |
4340 | htab->sfpr->contents = p; |
4341 | ||
4342 | for (i = lowest_savef; i <= MAX_SAVE_FPR; i++) | |
4343 | { | |
4344 | unsigned int fpr = i << 21; | |
4345 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4346 | bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p); | |
4347 | p += 4; | |
4348 | } | |
4349 | if (lowest_savef <= MAX_SAVE_FPR) | |
4350 | { | |
82bd7b59 AM |
4351 | bfd_put_32 (htab->elf.dynobj, BLR, p); |
4352 | p += 4; | |
721956f4 | 4353 | } |
82bd7b59 | 4354 | |
721956f4 AM |
4355 | for (i = lowest_restf; i <= MAX_SAVE_FPR; i++) |
4356 | { | |
4357 | unsigned int fpr = i << 21; | |
4358 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4359 | bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p); | |
82bd7b59 AM |
4360 | p += 4; |
4361 | } | |
721956f4 AM |
4362 | if (lowest_restf <= MAX_SAVE_FPR |
4363 | || htab->sfpr->_raw_size == 4) | |
4364 | { | |
4365 | bfd_put_32 (htab->elf.dynobj, BLR, p); | |
4366 | } | |
82bd7b59 | 4367 | |
b34976b6 | 4368 | return TRUE; |
e86ce104 AM |
4369 | } |
4370 | ||
4371 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4372 | regular object. The current definition is in some section of the | |
4373 | dynamic object, but we're not including those sections. We have to | |
4374 | change the definition to something the rest of the link can | |
4375 | understand. */ | |
4376 | ||
b34976b6 | 4377 | static bfd_boolean |
4ce794b7 AM |
4378 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
4379 | struct elf_link_hash_entry *h) | |
e86ce104 AM |
4380 | { |
4381 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
4382 | asection *s; |
4383 | unsigned int power_of_two; | |
4384 | ||
4385 | htab = ppc_hash_table (info); | |
4386 | ||
4387 | /* Deal with function syms. */ | |
4388 | if (h->type == STT_FUNC | |
4389 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4390 | { | |
4391 | /* Clear procedure linkage table information for any symbol that | |
4392 | won't need a .plt entry. */ | |
411e1bfb AM |
4393 | struct plt_entry *ent; |
4394 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4395 | if (ent->plt.refcount > 0) | |
4396 | break; | |
e86ce104 | 4397 | if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor |
411e1bfb | 4398 | || ent == NULL |
9c7a29a3 AM |
4399 | || SYMBOL_CALLS_LOCAL (info, h) |
4400 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4401 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 4402 | { |
411e1bfb | 4403 | h->plt.plist = NULL; |
40b8271b | 4404 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
40b8271b | 4405 | } |
5bd4f169 | 4406 | } |
bbd7ec4a | 4407 | else |
411e1bfb | 4408 | h->plt.plist = NULL; |
5bd4f169 AM |
4409 | |
4410 | /* If this is a weak symbol, and there is a real definition, the | |
4411 | processor independent code will have arranged for us to see the | |
4412 | real definition first, and we can just use the same value. */ | |
4413 | if (h->weakdef != NULL) | |
4414 | { | |
4415 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4416 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4417 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4418 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
4419 | if (ELIMINATE_COPY_RELOCS) |
4420 | h->elf_link_hash_flags | |
4421 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
4422 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 4423 | return TRUE; |
5bd4f169 AM |
4424 | } |
4425 | ||
4426 | /* This is a reference to a symbol defined by a dynamic object which | |
4427 | is not a function. */ | |
4428 | ||
4429 | /* If we are creating a shared library, we must presume that the | |
4430 | only references to the symbol are via the global offset table. | |
4431 | For such cases we need not do anything here; the relocations will | |
4432 | be handled correctly by relocate_section. */ | |
4433 | if (info->shared) | |
b34976b6 | 4434 | return TRUE; |
5bd4f169 | 4435 | |
65f38f15 AM |
4436 | /* If there are no references to this symbol that do not use the |
4437 | GOT, we don't need to generate a copy reloc. */ | |
4438 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 4439 | return TRUE; |
65f38f15 | 4440 | |
f4656909 | 4441 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 4442 | { |
f4656909 AM |
4443 | struct ppc_link_hash_entry * eh; |
4444 | struct ppc_dyn_relocs *p; | |
65f38f15 | 4445 | |
f4656909 AM |
4446 | eh = (struct ppc_link_hash_entry *) h; |
4447 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4448 | { | |
4449 | s = p->sec->output_section; | |
4450 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
4451 | break; | |
4452 | } | |
4453 | ||
4454 | /* If we didn't find any dynamic relocs in read-only sections, then | |
4455 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
4456 | if (p == NULL) | |
4457 | { | |
4458 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
4459 | return TRUE; | |
4460 | } | |
65f38f15 AM |
4461 | } |
4462 | ||
5bd4f169 AM |
4463 | /* We must allocate the symbol in our .dynbss section, which will |
4464 | become part of the .bss section of the executable. There will be | |
4465 | an entry for this symbol in the .dynsym section. The dynamic | |
4466 | object will contain position independent code, so all references | |
4467 | from the dynamic object to this symbol will go through the global | |
4468 | offset table. The dynamic linker will use the .dynsym entry to | |
4469 | determine the address it must put in the global offset table, so | |
4470 | both the dynamic object and the regular object will refer to the | |
4471 | same memory location for the variable. */ | |
5bd4f169 | 4472 | |
04c9666a AM |
4473 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
4474 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
4475 | runtime process image. We need to remember the offset into the |
4476 | .rela.bss section we are going to use. */ | |
4477 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4478 | { | |
4ce794b7 | 4479 | htab->relbss->_raw_size += sizeof (Elf64_External_Rela); |
5bd4f169 AM |
4480 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4481 | } | |
4482 | ||
4483 | /* We need to figure out the alignment required for this symbol. I | |
4484 | have no idea how ELF linkers handle this. */ | |
4485 | power_of_two = bfd_log2 (h->size); | |
4486 | if (power_of_two > 4) | |
4487 | power_of_two = 4; | |
4488 | ||
4489 | /* Apply the required alignment. */ | |
4ce794b7 | 4490 | s = htab->dynbss; |
65f38f15 AM |
4491 | s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two)); |
4492 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
5bd4f169 | 4493 | { |
65f38f15 | 4494 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 4495 | return FALSE; |
5bd4f169 AM |
4496 | } |
4497 | ||
4498 | /* Define the symbol as being at this point in the section. */ | |
4499 | h->root.u.def.section = s; | |
4500 | h->root.u.def.value = s->_raw_size; | |
4501 | ||
4502 | /* Increment the section size to make room for the symbol. */ | |
4503 | s->_raw_size += h->size; | |
4504 | ||
b34976b6 | 4505 | return TRUE; |
5bd4f169 AM |
4506 | } |
4507 | ||
e86ce104 AM |
4508 | /* If given a function descriptor symbol, hide both the function code |
4509 | sym and the descriptor. */ | |
4510 | static void | |
4ce794b7 AM |
4511 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
4512 | struct elf_link_hash_entry *h, | |
4513 | bfd_boolean force_local) | |
e86ce104 AM |
4514 | { |
4515 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); | |
4516 | ||
4517 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) | |
4518 | { | |
721956f4 | 4519 | struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh; |
e86ce104 | 4520 | |
721956f4 | 4521 | if (fh == NULL) |
d1329ca3 AM |
4522 | { |
4523 | const char *p, *q; | |
4524 | struct ppc_link_hash_table *htab; | |
4525 | char save; | |
4526 | ||
4527 | /* We aren't supposed to use alloca in BFD because on | |
4528 | systems which do not have alloca the version in libiberty | |
4529 | calls xmalloc, which might cause the program to crash | |
4530 | when it runs out of memory. This function doesn't have a | |
4531 | return status, so there's no way to gracefully return an | |
4532 | error. So cheat. We know that string[-1] can be safely | |
4533 | dereferenced; It's either a string in an ELF string | |
4534 | table, or allocated in an objalloc structure. */ | |
4535 | ||
4536 | p = h->root.root.string - 1; | |
4537 | save = *p; | |
4538 | *(char *) p = '.'; | |
4539 | htab = ppc_hash_table (info); | |
b34976b6 | 4540 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4541 | *(char *) p = save; |
4542 | ||
4543 | /* Unfortunately, if it so happens that the string we were | |
4544 | looking for was allocated immediately before this string, | |
4545 | then we overwrote the string terminator. That's the only | |
4546 | reason the lookup should fail. */ | |
4547 | if (fh == NULL) | |
4548 | { | |
4549 | q = h->root.root.string + strlen (h->root.root.string); | |
4550 | while (q >= h->root.root.string && *q == *p) | |
4551 | --q, --p; | |
4552 | if (q < h->root.root.string && *p == '.') | |
b34976b6 | 4553 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4554 | } |
4555 | if (fh != NULL) | |
4556 | { | |
4557 | ((struct ppc_link_hash_entry *) h)->oh = fh; | |
4558 | ((struct ppc_link_hash_entry *) fh)->oh = h; | |
4559 | } | |
4560 | } | |
e86ce104 AM |
4561 | if (fh != NULL) |
4562 | _bfd_elf_link_hash_hide_symbol (info, fh, force_local); | |
4563 | } | |
4564 | } | |
4565 | ||
411e1bfb | 4566 | static bfd_boolean |
4ce794b7 AM |
4567 | get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp, |
4568 | asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp, | |
4569 | unsigned long r_symndx, bfd *ibfd) | |
411e1bfb AM |
4570 | { |
4571 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4572 | ||
4573 | if (r_symndx >= symtab_hdr->sh_info) | |
4574 | { | |
4575 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4576 | struct elf_link_hash_entry *h; | |
4577 | ||
4578 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4579 | while (h->root.type == bfd_link_hash_indirect | |
4580 | || h->root.type == bfd_link_hash_warning) | |
4581 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4582 | ||
4583 | if (hp != NULL) | |
4584 | *hp = h; | |
4585 | ||
4586 | if (symp != NULL) | |
4587 | *symp = NULL; | |
4588 | ||
4589 | if (symsecp != NULL) | |
4590 | { | |
4591 | asection *symsec = NULL; | |
4592 | if (h->root.type == bfd_link_hash_defined | |
4593 | || h->root.type == bfd_link_hash_defweak) | |
4594 | symsec = h->root.u.def.section; | |
4595 | *symsecp = symsec; | |
4596 | } | |
4597 | ||
e7b938ca | 4598 | if (tls_maskp != NULL) |
411e1bfb AM |
4599 | { |
4600 | struct ppc_link_hash_entry *eh; | |
4601 | ||
4602 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4603 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
4604 | } |
4605 | } | |
4606 | else | |
4607 | { | |
4608 | Elf_Internal_Sym *sym; | |
4609 | Elf_Internal_Sym *locsyms = *locsymsp; | |
4610 | ||
4611 | if (locsyms == NULL) | |
4612 | { | |
4613 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4614 | if (locsyms == NULL) | |
4615 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4616 | symtab_hdr->sh_info, | |
4617 | 0, NULL, NULL, NULL); | |
4618 | if (locsyms == NULL) | |
4619 | return FALSE; | |
4620 | *locsymsp = locsyms; | |
4621 | } | |
4622 | sym = locsyms + r_symndx; | |
4623 | ||
4624 | if (hp != NULL) | |
4625 | *hp = NULL; | |
4626 | ||
4627 | if (symp != NULL) | |
4628 | *symp = sym; | |
4629 | ||
4630 | if (symsecp != NULL) | |
4631 | { | |
4632 | asection *symsec = NULL; | |
4633 | if ((sym->st_shndx != SHN_UNDEF | |
4634 | && sym->st_shndx < SHN_LORESERVE) | |
4635 | || sym->st_shndx > SHN_HIRESERVE) | |
4636 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
4637 | *symsecp = symsec; | |
4638 | } | |
4639 | ||
e7b938ca | 4640 | if (tls_maskp != NULL) |
411e1bfb AM |
4641 | { |
4642 | struct got_entry **lgot_ents; | |
e7b938ca | 4643 | char *tls_mask; |
411e1bfb | 4644 | |
e7b938ca | 4645 | tls_mask = NULL; |
411e1bfb AM |
4646 | lgot_ents = elf_local_got_ents (ibfd); |
4647 | if (lgot_ents != NULL) | |
4648 | { | |
e7b938ca AM |
4649 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
4650 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 4651 | } |
e7b938ca | 4652 | *tls_maskp = tls_mask; |
411e1bfb AM |
4653 | } |
4654 | } | |
4655 | return TRUE; | |
4656 | } | |
4657 | ||
e7b938ca | 4658 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b | 4659 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
ad8e1ba5 | 4660 | type suitable for optimization, and 1 otherwise. */ |
951fd09b AM |
4661 | |
4662 | static int | |
4ce794b7 AM |
4663 | get_tls_mask (char **tls_maskp, Elf_Internal_Sym **locsymsp, |
4664 | const Elf_Internal_Rela *rel, bfd *ibfd) | |
411e1bfb AM |
4665 | { |
4666 | unsigned long r_symndx; | |
951fd09b | 4667 | unsigned int next_r; |
411e1bfb AM |
4668 | struct elf_link_hash_entry *h; |
4669 | Elf_Internal_Sym *sym; | |
4670 | asection *sec; | |
4671 | bfd_vma off; | |
4672 | ||
4673 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 4674 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4675 | return 0; |
411e1bfb | 4676 | |
e7b938ca | 4677 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
4678 | || sec == NULL |
4679 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 4680 | return 1; |
411e1bfb AM |
4681 | |
4682 | /* Look inside a TOC section too. */ | |
4683 | if (h != NULL) | |
4684 | { | |
4685 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
4686 | off = h->root.u.def.value; | |
4687 | } | |
4688 | else | |
4689 | off = sym->st_value; | |
4690 | off += rel->r_addend; | |
4691 | BFD_ASSERT (off % 8 == 0); | |
4692 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 4693 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 4694 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b AM |
4695 | return 0; |
4696 | if (h == NULL | |
4697 | || h->root.type == bfd_link_hash_defined | |
4698 | || h->root.type == bfd_link_hash_defweak) | |
4699 | { | |
4700 | if (next_r == (unsigned) -1) | |
4701 | return 2; | |
4702 | if (next_r == (unsigned) -2 | |
4703 | && (h == NULL | |
4704 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4705 | return 3; | |
4706 | } | |
4707 | return 1; | |
411e1bfb AM |
4708 | } |
4709 | ||
b34976b6 | 4710 | bfd_boolean |
4ce794b7 | 4711 | ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info) |
1e2f5b6e AM |
4712 | { |
4713 | bfd *ibfd; | |
1e2f5b6e | 4714 | |
411e1bfb | 4715 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
4716 | { |
4717 | asection *sec; | |
4718 | Elf_Internal_Rela *relstart, *rel, *relend; | |
4719 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 4720 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
4721 | struct elf_link_hash_entry **sym_hashes; |
4722 | bfd_vma offset; | |
d6fe2dc1 | 4723 | bfd_size_type amt; |
1e2f5b6e | 4724 | long *adjust; |
b34976b6 | 4725 | bfd_boolean need_edit; |
1e2f5b6e AM |
4726 | |
4727 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
4728 | if (sec == NULL) | |
4729 | continue; | |
4730 | ||
d6fe2dc1 | 4731 | amt = sec->_raw_size * sizeof (long) / 24; |
f0abc2a1 | 4732 | adjust = ppc64_elf_section_data (sec)->opd.adjust; |
d6fe2dc1 AM |
4733 | if (adjust == NULL) |
4734 | { | |
4735 | /* Must be a ld -r link. ie. check_relocs hasn't been | |
4736 | called. */ | |
4ce794b7 | 4737 | adjust = bfd_zalloc (obfd, amt); |
f0abc2a1 | 4738 | ppc64_elf_section_data (sec)->opd.adjust = adjust; |
d6fe2dc1 | 4739 | } |
4ce794b7 | 4740 | memset (adjust, 0, amt); |
1e2f5b6e AM |
4741 | |
4742 | if (sec->output_section == bfd_abs_section_ptr) | |
4743 | continue; | |
4744 | ||
4745 | /* Look through the section relocs. */ | |
4746 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
4747 | continue; | |
4748 | ||
6cdc0ccc | 4749 | local_syms = NULL; |
1e2f5b6e AM |
4750 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
4751 | sym_hashes = elf_sym_hashes (ibfd); | |
4752 | ||
4753 | /* Read the relocations. */ | |
4ce794b7 | 4754 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 4755 | info->keep_memory); |
1e2f5b6e | 4756 | if (relstart == NULL) |
b34976b6 | 4757 | return FALSE; |
1e2f5b6e AM |
4758 | |
4759 | /* First run through the relocs to check they are sane, and to | |
4760 | determine whether we need to edit this opd section. */ | |
b34976b6 | 4761 | need_edit = FALSE; |
1e2f5b6e AM |
4762 | offset = 0; |
4763 | relend = relstart + sec->reloc_count; | |
4764 | for (rel = relstart; rel < relend; rel++) | |
4765 | { | |
04c9666a | 4766 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
4767 | unsigned long r_symndx; |
4768 | asection *sym_sec; | |
4769 | struct elf_link_hash_entry *h; | |
4770 | Elf_Internal_Sym *sym; | |
4771 | ||
4772 | /* .opd contains a regular array of 24 byte entries. We're | |
4773 | only interested in the reloc pointing to a function entry | |
4774 | point. */ | |
4ce794b7 | 4775 | r_type = ELF64_R_TYPE (rel->r_info); |
1e2f5b6e AM |
4776 | if (r_type == R_PPC64_TOC) |
4777 | continue; | |
4778 | ||
4779 | if (r_type != R_PPC64_ADDR64) | |
4780 | { | |
4781 | (*_bfd_error_handler) | |
4782 | (_("%s: unexpected reloc type %u in .opd section"), | |
4783 | bfd_archive_filename (ibfd), r_type); | |
b34976b6 | 4784 | need_edit = FALSE; |
1e2f5b6e AM |
4785 | break; |
4786 | } | |
4787 | ||
4788 | if (rel + 1 >= relend) | |
4789 | continue; | |
4ce794b7 | 4790 | r_type = ELF64_R_TYPE ((rel + 1)->r_info); |
1e2f5b6e AM |
4791 | if (r_type != R_PPC64_TOC) |
4792 | continue; | |
4793 | ||
4794 | if (rel->r_offset != offset) | |
4795 | { | |
4796 | /* If someone messes with .opd alignment then after a | |
4797 | "ld -r" we might have padding in the middle of .opd. | |
4798 | Also, there's nothing to prevent someone putting | |
4799 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 4800 | optimization for them! */ |
1e2f5b6e AM |
4801 | (*_bfd_error_handler) |
4802 | (_("%s: .opd is not a regular array of opd entries"), | |
4803 | bfd_archive_filename (ibfd)); | |
b34976b6 | 4804 | need_edit = FALSE; |
1e2f5b6e AM |
4805 | break; |
4806 | } | |
4807 | ||
4808 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
4809 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
4810 | r_symndx, ibfd)) | |
4811 | goto error_free_rel; | |
1e2f5b6e AM |
4812 | |
4813 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
4814 | { | |
411e1bfb AM |
4815 | const char *sym_name; |
4816 | if (h != NULL) | |
4817 | sym_name = h->root.root.string; | |
4818 | else | |
4819 | sym_name = bfd_elf_local_sym_name (ibfd, sym); | |
4820 | ||
1e2f5b6e AM |
4821 | (*_bfd_error_handler) |
4822 | (_("%s: undefined sym `%s' in .opd section"), | |
4823 | bfd_archive_filename (ibfd), | |
411e1bfb | 4824 | sym_name); |
b34976b6 | 4825 | need_edit = FALSE; |
1e2f5b6e AM |
4826 | break; |
4827 | } | |
4828 | ||
51020317 AM |
4829 | /* opd entries are always for functions defined in the |
4830 | current input bfd. If the symbol isn't defined in the | |
4831 | input bfd, then we won't be using the function in this | |
4832 | bfd; It must be defined in a linkonce section in another | |
4833 | bfd, or is weak. It's also possible that we are | |
4834 | discarding the function due to a linker script /DISCARD/, | |
4835 | which we test for via the output_section. */ | |
4836 | if (sym_sec->owner != ibfd | |
4837 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 4838 | need_edit = TRUE; |
1e2f5b6e AM |
4839 | |
4840 | offset += 24; | |
4841 | } | |
4842 | ||
4843 | if (need_edit) | |
4844 | { | |
4845 | Elf_Internal_Rela *write_rel; | |
4846 | bfd_byte *rptr, *wptr; | |
b34976b6 | 4847 | bfd_boolean skip; |
1e2f5b6e AM |
4848 | |
4849 | /* This seems a waste of time as input .opd sections are all | |
4850 | zeros as generated by gcc, but I suppose there's no reason | |
4851 | this will always be so. We might start putting something in | |
4852 | the third word of .opd entries. */ | |
4853 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
4854 | { | |
4855 | bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size); | |
6cdc0ccc | 4856 | if (loc == NULL |
4ce794b7 | 4857 | || !bfd_get_section_contents (ibfd, sec, loc, 0, |
6cdc0ccc AM |
4858 | sec->_raw_size)) |
4859 | { | |
4860 | if (local_syms != NULL | |
4861 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
4862 | free (local_syms); | |
4863 | error_free_rel: | |
4864 | if (elf_section_data (sec)->relocs != relstart) | |
4865 | free (relstart); | |
b34976b6 | 4866 | return FALSE; |
6cdc0ccc | 4867 | } |
1e2f5b6e AM |
4868 | sec->contents = loc; |
4869 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
4870 | } | |
4871 | ||
4872 | elf_section_data (sec)->relocs = relstart; | |
4873 | ||
4874 | wptr = sec->contents; | |
4875 | rptr = sec->contents; | |
4876 | write_rel = relstart; | |
b34976b6 | 4877 | skip = FALSE; |
1e2f5b6e AM |
4878 | offset = 0; |
4879 | for (rel = relstart; rel < relend; rel++) | |
4880 | { | |
4881 | if (rel->r_offset == offset) | |
4882 | { | |
4883 | unsigned long r_symndx; | |
4884 | asection *sym_sec; | |
4885 | struct elf_link_hash_entry *h; | |
4886 | Elf_Internal_Sym *sym; | |
4887 | ||
4888 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
4889 | get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
4890 | r_symndx, ibfd); | |
1e2f5b6e | 4891 | |
51020317 AM |
4892 | skip = (sym_sec->owner != ibfd |
4893 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
4894 | if (skip) |
4895 | { | |
0be617ce | 4896 | if (h != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
4897 | { |
4898 | /* Arrange for the function descriptor sym | |
4899 | to be dropped. */ | |
d6fe2dc1 | 4900 | struct ppc_link_hash_entry *fdh; |
a4aa0fb7 AM |
4901 | struct ppc_link_hash_entry *fh; |
4902 | ||
4903 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
4904 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
4905 | if (fdh == NULL) | |
4906 | { | |
4907 | const char *fd_name; | |
4908 | struct ppc_link_hash_table *htab; | |
4909 | ||
4910 | fd_name = h->root.root.string + 1; | |
4911 | htab = ppc_hash_table (info); | |
4912 | fdh = (struct ppc_link_hash_entry *) | |
4913 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 4914 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
4915 | fdh->is_func_descriptor = 1; |
4916 | fdh->oh = &fh->elf; | |
4917 | fh->is_func = 1; | |
4918 | fh->oh = &fdh->elf; | |
4919 | } | |
4920 | ||
4921 | fdh->elf.root.u.def.value = 0; | |
4922 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 AM |
4923 | } |
4924 | } | |
4925 | else | |
1e2f5b6e AM |
4926 | { |
4927 | /* We'll be keeping this opd entry. */ | |
4928 | ||
4929 | if (h != NULL) | |
4930 | { | |
4931 | /* Redefine the function descriptor symbol | |
4932 | to this location in the opd section. | |
4933 | We've checked above that opd relocs are | |
4934 | ordered. */ | |
d6fe2dc1 | 4935 | struct ppc_link_hash_entry *fdh; |
1e2f5b6e AM |
4936 | struct ppc_link_hash_entry *fh; |
4937 | ||
4938 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
4939 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
4940 | if (fdh == NULL) | |
4941 | { | |
4942 | const char *fd_name; | |
4943 | struct ppc_link_hash_table *htab; | |
4944 | ||
4945 | fd_name = h->root.root.string + 1; | |
4946 | htab = ppc_hash_table (info); | |
4947 | fdh = (struct ppc_link_hash_entry *) | |
4948 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 4949 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
4950 | fdh->is_func_descriptor = 1; |
4951 | fdh->oh = &fh->elf; | |
4952 | fh->is_func = 1; | |
4953 | fh->oh = &fdh->elf; | |
4954 | } | |
4955 | ||
4956 | fdh->elf.root.u.def.value = wptr - sec->contents; | |
1e2f5b6e AM |
4957 | } |
4958 | else | |
4959 | { | |
6cdc0ccc AM |
4960 | /* Local syms are a bit tricky. We could |
4961 | tweak them as they can be cached, but | |
4962 | we'd need to look through the local syms | |
4963 | for the function descriptor sym which we | |
4964 | don't have at the moment. So keep an | |
b34976b6 | 4965 | array of adjustments. */ |
7f6a7663 | 4966 | adjust[rel->r_offset / 24] = wptr - rptr; |
1e2f5b6e AM |
4967 | } |
4968 | ||
4969 | if (wptr != rptr) | |
4970 | memcpy (wptr, rptr, 24); | |
4971 | wptr += 24; | |
4972 | } | |
4973 | rptr += 24; | |
4974 | offset += 24; | |
4975 | } | |
4976 | ||
4977 | /* We need to adjust any reloc offsets to point to the | |
4978 | new opd entries. While we're at it, we may as well | |
4979 | remove redundant relocs. */ | |
4980 | if (!skip) | |
4981 | { | |
4982 | rel->r_offset += wptr - rptr; | |
4983 | if (write_rel != rel) | |
4984 | memcpy (write_rel, rel, sizeof (*rel)); | |
4985 | ++write_rel; | |
4986 | } | |
4987 | } | |
4988 | ||
4989 | sec->_cooked_size = wptr - sec->contents; | |
4990 | sec->reloc_count = write_rel - relstart; | |
cdcf6e38 AM |
4991 | /* Fudge the size too, as this is used later in |
4992 | elf_bfd_final_link if we are emitting relocs. */ | |
4993 | elf_section_data (sec)->rel_hdr.sh_size | |
4994 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
4995 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
1e2f5b6e | 4996 | } |
6cdc0ccc | 4997 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 4998 | free (relstart); |
6cdc0ccc | 4999 | |
411e1bfb AM |
5000 | if (local_syms != NULL |
5001 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5002 | { | |
5003 | if (!info->keep_memory) | |
5004 | free (local_syms); | |
5005 | else | |
5006 | symtab_hdr->contents = (unsigned char *) local_syms; | |
5007 | } | |
5008 | } | |
5009 | ||
5010 | return TRUE; | |
5011 | } | |
5012 | ||
951fd09b | 5013 | /* Set htab->tls_sec. */ |
411e1bfb AM |
5014 | |
5015 | bfd_boolean | |
4ce794b7 | 5016 | ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
411e1bfb AM |
5017 | { |
5018 | asection *tls; | |
411e1bfb AM |
5019 | struct ppc_link_hash_table *htab; |
5020 | ||
411e1bfb AM |
5021 | for (tls = obfd->sections; tls != NULL; tls = tls->next) |
5022 | if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5023 | == (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5024 | break; | |
411e1bfb AM |
5025 | |
5026 | htab = ppc_hash_table (info); | |
5027 | htab->tls_sec = tls; | |
a48ebf4d AM |
5028 | |
5029 | if (htab->tls_get_addr != NULL) | |
5030 | { | |
5031 | struct elf_link_hash_entry *h = htab->tls_get_addr; | |
5032 | ||
5033 | while (h->root.type == bfd_link_hash_indirect | |
5034 | || h->root.type == bfd_link_hash_warning) | |
5035 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5036 | ||
5037 | htab->tls_get_addr = h; | |
5038 | } | |
5039 | ||
951fd09b AM |
5040 | return tls != NULL; |
5041 | } | |
411e1bfb | 5042 | |
951fd09b AM |
5043 | /* Run through all the TLS relocs looking for optimization |
5044 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
5045 | a preliminary section layout so that we know the TLS segment | |
5046 | offsets. We can't optimize earlier because some optimizations need | |
5047 | to know the tp offset, and we need to optimize before allocating | |
5048 | dynamic relocations. */ | |
5049 | ||
5050 | bfd_boolean | |
4ce794b7 | 5051 | ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info) |
951fd09b AM |
5052 | { |
5053 | bfd *ibfd; | |
5054 | asection *sec; | |
5055 | struct ppc_link_hash_table *htab; | |
5056 | ||
5057 | if (info->relocateable || info->shared) | |
411e1bfb AM |
5058 | return TRUE; |
5059 | ||
951fd09b | 5060 | htab = ppc_hash_table (info); |
411e1bfb AM |
5061 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5062 | { | |
5063 | Elf_Internal_Sym *locsyms = NULL; | |
5064 | ||
5065 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
5066 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5067 | { | |
5068 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5069 | int expecting_tls_get_addr; | |
5070 | ||
5071 | /* Read the relocations. */ | |
4ce794b7 | 5072 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
45d6a902 | 5073 | info->keep_memory); |
411e1bfb AM |
5074 | if (relstart == NULL) |
5075 | return FALSE; | |
5076 | ||
5077 | expecting_tls_get_addr = 0; | |
5078 | relend = relstart + sec->reloc_count; | |
5079 | for (rel = relstart; rel < relend; rel++) | |
5080 | { | |
5081 | enum elf_ppc64_reloc_type r_type; | |
5082 | unsigned long r_symndx; | |
5083 | struct elf_link_hash_entry *h; | |
5084 | Elf_Internal_Sym *sym; | |
5085 | asection *sym_sec; | |
e7b938ca AM |
5086 | char *tls_mask; |
5087 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 5088 | bfd_vma value; |
951fd09b | 5089 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
5090 | |
5091 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5092 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
5093 | r_symndx, ibfd)) |
5094 | { | |
5095 | err_free_rel: | |
5096 | if (elf_section_data (sec)->relocs != relstart) | |
5097 | free (relstart); | |
5098 | if (locsyms != NULL | |
5099 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5100 | != (unsigned char *) locsyms)) | |
5101 | free (locsyms); | |
5102 | return FALSE; | |
5103 | } | |
5104 | ||
5105 | if (h != NULL) | |
5106 | { | |
5107 | if (h->root.type != bfd_link_hash_defined | |
5108 | && h->root.type != bfd_link_hash_defweak) | |
5109 | continue; | |
5110 | value = h->root.u.def.value; | |
5111 | } | |
5112 | else | |
5113 | value = sym->st_value; | |
951fd09b | 5114 | |
411e1bfb | 5115 | ok_tprel = FALSE; |
951fd09b AM |
5116 | is_local = FALSE; |
5117 | if (h == NULL | |
5118 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5119 | { |
951fd09b | 5120 | is_local = TRUE; |
411e1bfb AM |
5121 | value += sym_sec->output_offset; |
5122 | value += sym_sec->output_section->vma; | |
5123 | value -= htab->tls_sec->vma; | |
5124 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
5125 | < (bfd_vma) 1 << 32); | |
5126 | } | |
5127 | ||
4ce794b7 | 5128 | r_type = ELF64_R_TYPE (rel->r_info); |
411e1bfb AM |
5129 | switch (r_type) |
5130 | { | |
5131 | case R_PPC64_GOT_TLSLD16: | |
5132 | case R_PPC64_GOT_TLSLD16_LO: | |
5133 | case R_PPC64_GOT_TLSLD16_HI: | |
5134 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
5135 | /* These relocs should never be against a symbol |
5136 | defined in a shared lib. Leave them alone if | |
5137 | that turns out to be the case. */ | |
d881513a | 5138 | htab->tlsld_got.refcount -= 1; |
951fd09b AM |
5139 | if (!is_local) |
5140 | continue; | |
5141 | ||
951fd09b AM |
5142 | /* LD -> LE */ |
5143 | tls_set = 0; | |
5144 | tls_clear = TLS_LD; | |
e7b938ca | 5145 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5146 | expecting_tls_get_addr = 1; |
5147 | break; | |
5148 | ||
5149 | case R_PPC64_GOT_TLSGD16: | |
5150 | case R_PPC64_GOT_TLSGD16_LO: | |
5151 | case R_PPC64_GOT_TLSGD16_HI: | |
5152 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5153 | if (ok_tprel) |
411e1bfb AM |
5154 | /* GD -> LE */ |
5155 | tls_set = 0; | |
5156 | else | |
5157 | /* GD -> IE */ | |
951fd09b AM |
5158 | tls_set = TLS_TLS | TLS_TPRELGD; |
5159 | tls_clear = TLS_GD; | |
e7b938ca | 5160 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5161 | expecting_tls_get_addr = 1; |
5162 | break; | |
5163 | ||
5164 | case R_PPC64_GOT_TPREL16_DS: | |
5165 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5166 | case R_PPC64_GOT_TPREL16_HI: | |
5167 | case R_PPC64_GOT_TPREL16_HA: | |
5168 | expecting_tls_get_addr = 0; | |
5169 | if (ok_tprel) | |
5170 | { | |
5171 | /* IE -> LE */ | |
5172 | tls_set = 0; | |
5173 | tls_clear = TLS_TPREL; | |
e7b938ca | 5174 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
5175 | break; |
5176 | } | |
5177 | else | |
5178 | continue; | |
5179 | ||
5180 | case R_PPC64_REL14: | |
5181 | case R_PPC64_REL14_BRTAKEN: | |
5182 | case R_PPC64_REL14_BRNTAKEN: | |
5183 | case R_PPC64_REL24: | |
5184 | if (h != NULL | |
5185 | && h == htab->tls_get_addr) | |
5186 | { | |
5187 | if (!expecting_tls_get_addr | |
5188 | && rel != relstart | |
5189 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
5190 | == R_PPC64_TOC16) | |
5191 | || (ELF64_R_TYPE (rel[-1].r_info) | |
5192 | == R_PPC64_TOC16_LO))) | |
5193 | { | |
5194 | /* Check for toc tls entries. */ | |
5195 | char *toc_tls; | |
951fd09b | 5196 | int retval; |
411e1bfb | 5197 | |
e7b938ca | 5198 | retval = get_tls_mask (&toc_tls, &locsyms, |
951fd09b AM |
5199 | rel - 1, ibfd); |
5200 | if (retval == 0) | |
411e1bfb AM |
5201 | goto err_free_rel; |
5202 | if (toc_tls != NULL) | |
951fd09b | 5203 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
5204 | } |
5205 | ||
5206 | if (expecting_tls_get_addr) | |
5207 | { | |
5208 | struct plt_entry *ent; | |
5209 | for (ent = h->plt.plist; ent; ent = ent->next) | |
5210 | if (ent->addend == 0) | |
5211 | { | |
5212 | if (ent->plt.refcount > 0) | |
5213 | ent->plt.refcount -= 1; | |
5214 | break; | |
5215 | } | |
5216 | } | |
5217 | } | |
5218 | expecting_tls_get_addr = 0; | |
5219 | continue; | |
5220 | ||
5221 | case R_PPC64_TPREL64: | |
5222 | expecting_tls_get_addr = 0; | |
5223 | if (ok_tprel) | |
5224 | { | |
5225 | /* IE -> LE */ | |
5226 | tls_set = TLS_EXPLICIT; | |
5227 | tls_clear = TLS_TPREL; | |
5228 | break; | |
5229 | } | |
5230 | else | |
5231 | continue; | |
5232 | ||
5233 | case R_PPC64_DTPMOD64: | |
5234 | expecting_tls_get_addr = 0; | |
951fd09b AM |
5235 | if (rel + 1 < relend |
5236 | && (rel[1].r_info | |
5237 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
5238 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 5239 | { |
951fd09b | 5240 | if (ok_tprel) |
411e1bfb | 5241 | /* GD -> LE */ |
951fd09b | 5242 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
5243 | else |
5244 | /* GD -> IE */ | |
951fd09b AM |
5245 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
5246 | tls_clear = TLS_GD; | |
411e1bfb AM |
5247 | } |
5248 | else | |
5249 | { | |
951fd09b AM |
5250 | if (!is_local) |
5251 | continue; | |
5252 | ||
5253 | /* LD -> LE */ | |
5254 | tls_set = TLS_EXPLICIT; | |
5255 | tls_clear = TLS_LD; | |
411e1bfb AM |
5256 | } |
5257 | break; | |
5258 | ||
5259 | default: | |
5260 | expecting_tls_get_addr = 0; | |
5261 | continue; | |
5262 | } | |
5263 | ||
5264 | if ((tls_set & TLS_EXPLICIT) == 0) | |
5265 | { | |
5266 | struct got_entry *ent; | |
5267 | ||
5268 | /* Adjust got entry for this reloc. */ | |
5269 | if (h != NULL) | |
5270 | ent = h->got.glist; | |
5271 | else | |
5272 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
5273 | ||
5274 | for (; ent != NULL; ent = ent->next) | |
5275 | if (ent->addend == rel->r_addend | |
e7b938ca | 5276 | && ent->tls_type == tls_type) |
411e1bfb AM |
5277 | break; |
5278 | if (ent == NULL) | |
5279 | abort (); | |
5280 | ||
5281 | if (tls_set == 0) | |
5282 | { | |
5283 | /* We managed to get rid of a got entry. */ | |
5284 | if (ent->got.refcount > 0) | |
5285 | ent->got.refcount -= 1; | |
5286 | } | |
411e1bfb AM |
5287 | } |
5288 | else if (h != NULL) | |
5289 | { | |
5290 | struct ppc_link_hash_entry * eh; | |
5291 | struct ppc_dyn_relocs **pp; | |
5292 | struct ppc_dyn_relocs *p; | |
5293 | ||
5294 | /* Adjust dynamic relocs. */ | |
5295 | eh = (struct ppc_link_hash_entry *) h; | |
5296 | for (pp = &eh->dyn_relocs; | |
5297 | (p = *pp) != NULL; | |
5298 | pp = &p->next) | |
5299 | if (p->sec == sec) | |
5300 | { | |
5301 | /* If we got rid of a DTPMOD/DTPREL reloc | |
5302 | pair then we'll lose one or two dyn | |
5303 | relocs. */ | |
951fd09b | 5304 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 5305 | p->count -= 1; |
951fd09b | 5306 | p->count -= 1; |
411e1bfb AM |
5307 | if (p->count == 0) |
5308 | *pp = p->next; | |
5309 | break; | |
5310 | } | |
5311 | } | |
5312 | ||
e7b938ca AM |
5313 | *tls_mask |= tls_set; |
5314 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
5315 | } |
5316 | ||
5317 | if (elf_section_data (sec)->relocs != relstart) | |
5318 | free (relstart); | |
5319 | } | |
5320 | ||
5321 | if (locsyms != NULL | |
5322 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5323 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
5324 | { |
5325 | if (!info->keep_memory) | |
411e1bfb | 5326 | free (locsyms); |
6cdc0ccc | 5327 | else |
411e1bfb | 5328 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 5329 | } |
1e2f5b6e | 5330 | } |
b34976b6 | 5331 | return TRUE; |
1e2f5b6e | 5332 | } |
b34976b6 | 5333 | |
65f38f15 AM |
5334 | /* This is the condition under which ppc64_elf_finish_dynamic_symbol |
5335 | will be called from elflink.h. If elflink.h doesn't call our | |
5336 | finish_dynamic_symbol routine, we'll need to do something about | |
5337 | initializing any .plt and .got entries in ppc64_elf_relocate_section. */ | |
f4656909 | 5338 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
65f38f15 | 5339 | ((DYN) \ |
f4656909 | 5340 | && ((SHARED) \ |
65f38f15 AM |
5341 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
5342 | && ((H)->dynindx != -1 \ | |
5343 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
5bd4f169 | 5344 | |
65f38f15 AM |
5345 | /* Allocate space in .plt, .got and associated reloc sections for |
5346 | dynamic relocs. */ | |
5bd4f169 | 5347 | |
b34976b6 | 5348 | static bfd_boolean |
4ce794b7 | 5349 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
5bd4f169 | 5350 | { |
65f38f15 AM |
5351 | struct bfd_link_info *info; |
5352 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 5353 | asection *s; |
65f38f15 AM |
5354 | struct ppc_link_hash_entry *eh; |
5355 | struct ppc_dyn_relocs *p; | |
411e1bfb | 5356 | struct got_entry *gent; |
5bd4f169 | 5357 | |
e92d460e | 5358 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5359 | return TRUE; |
5bd4f169 | 5360 | |
e92d460e AM |
5361 | if (h->root.type == bfd_link_hash_warning) |
5362 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5363 | ||
65f38f15 AM |
5364 | info = (struct bfd_link_info *) inf; |
5365 | htab = ppc_hash_table (info); | |
5bd4f169 | 5366 | |
65f38f15 | 5367 | if (htab->elf.dynamic_sections_created |
411e1bfb | 5368 | && h->dynindx != -1 |
9c7a29a3 | 5369 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 5370 | { |
411e1bfb AM |
5371 | struct plt_entry *pent; |
5372 | bfd_boolean doneone = FALSE; | |
5373 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
5374 | if (pent->plt.refcount > 0) | |
5375 | { | |
5376 | BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor); | |
5377 | ||
5378 | /* If this is the first .plt entry, make room for the special | |
5379 | first entry. */ | |
4ce794b7 | 5380 | s = htab->plt; |
411e1bfb AM |
5381 | if (s->_raw_size == 0) |
5382 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
5383 | ||
5384 | pent->plt.offset = s->_raw_size; | |
5385 | ||
5386 | /* Make room for this entry. */ | |
5387 | s->_raw_size += PLT_ENTRY_SIZE; | |
5388 | ||
5389 | /* Make room for the .glink code. */ | |
4ce794b7 | 5390 | s = htab->glink; |
411e1bfb AM |
5391 | if (s->_raw_size == 0) |
5392 | s->_raw_size += GLINK_CALL_STUB_SIZE; | |
5393 | /* We need bigger stubs past index 32767. */ | |
5394 | if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
5395 | s->_raw_size += 4; | |
5396 | s->_raw_size += 2*4; | |
5397 | ||
5398 | /* We also need to make an entry in the .rela.plt section. */ | |
4ce794b7 | 5399 | s = htab->relplt; |
411e1bfb AM |
5400 | s->_raw_size += sizeof (Elf64_External_Rela); |
5401 | doneone = TRUE; | |
5402 | } | |
5403 | else | |
5404 | pent->plt.offset = (bfd_vma) -1; | |
5405 | if (!doneone) | |
65f38f15 | 5406 | { |
411e1bfb | 5407 | h->plt.plist = NULL; |
65f38f15 AM |
5408 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5409 | } | |
5410 | } | |
5411 | else | |
5412 | { | |
411e1bfb | 5413 | h->plt.plist = NULL; |
65f38f15 AM |
5414 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5415 | } | |
5416 | ||
951fd09b AM |
5417 | eh = (struct ppc_link_hash_entry *) h; |
5418 | /* Run through the TLS GD got entries first if we're changing them | |
5419 | to TPREL. */ | |
e7b938ca | 5420 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
5421 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5422 | if (gent->got.refcount > 0 | |
5423 | && (gent->tls_type & TLS_GD) != 0) | |
5424 | { | |
5425 | /* This was a GD entry that has been converted to TPREL. If | |
5426 | there happens to be a TPREL entry we can use that one. */ | |
5427 | struct got_entry *ent; | |
5428 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
5429 | if (ent->got.refcount > 0 | |
5430 | && (ent->tls_type & TLS_TPREL) != 0 | |
5431 | && ent->addend == gent->addend) | |
5432 | { | |
5433 | gent->got.refcount = 0; | |
5434 | break; | |
5435 | } | |
5436 | ||
5437 | /* If not, then we'll be using our own TPREL entry. */ | |
5438 | if (gent->got.refcount != 0) | |
5439 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
5440 | } | |
5441 | ||
411e1bfb AM |
5442 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5443 | if (gent->got.refcount > 0) | |
5444 | { | |
951fd09b AM |
5445 | bfd_boolean dyn; |
5446 | ||
411e1bfb | 5447 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
5448 | Undefined weak syms won't yet be marked as dynamic, |
5449 | nor will all TLS symbols. */ | |
411e1bfb AM |
5450 | if (h->dynindx == -1 |
5451 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5452 | { | |
5453 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
5454 | return FALSE; | |
5455 | } | |
65f38f15 | 5456 | |
d881513a AM |
5457 | if ((gent->tls_type & TLS_LD) != 0 |
5458 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5459 | { |
951fd09b AM |
5460 | gent->got.offset = htab->tlsld_got.offset; |
5461 | continue; | |
411e1bfb | 5462 | } |
951fd09b | 5463 | |
4ce794b7 | 5464 | s = htab->got; |
951fd09b | 5465 | gent->got.offset = s->_raw_size; |
d881513a AM |
5466 | s->_raw_size |
5467 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; | |
951fd09b | 5468 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
5469 | if ((info->shared |
5470 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
5471 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5472 | || h->root.type != bfd_link_hash_undefweak)) | |
4ce794b7 | 5473 | htab->relgot->_raw_size |
e7b938ca | 5474 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
5475 | ? 2 * sizeof (Elf64_External_Rela) |
5476 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
5477 | } |
5478 | else | |
5479 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 5480 | |
65f38f15 | 5481 | if (eh->dyn_relocs == NULL) |
b34976b6 | 5482 | return TRUE; |
65f38f15 AM |
5483 | |
5484 | /* In the shared -Bsymbolic case, discard space allocated for | |
5485 | dynamic pc-relative relocs against symbols which turn out to be | |
5486 | defined in regular objects. For the normal shared case, discard | |
5487 | space for relocs that have become local due to symbol visibility | |
5488 | changes. */ | |
5489 | ||
5490 | if (info->shared) | |
5491 | { | |
9c7a29a3 AM |
5492 | /* Relocs that use pc_count are those that appear on a call insn, |
5493 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
5494 | generated via assembly. We want calls to protected symbols to | |
5495 | resolve directly to the function rather than going via the plt. | |
5496 | If people want function pointer comparisons to work as expected | |
5497 | then they should avoid writing weird assembly. */ | |
09695f56 | 5498 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
5499 | { |
5500 | struct ppc_dyn_relocs **pp; | |
5501 | ||
5502 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 5503 | { |
65f38f15 AM |
5504 | p->count -= p->pc_count; |
5505 | p->pc_count = 0; | |
5506 | if (p->count == 0) | |
5507 | *pp = p->next; | |
5508 | else | |
5509 | pp = &p->next; | |
5bd4f169 | 5510 | } |
65f38f15 | 5511 | } |
4e795f50 AM |
5512 | |
5513 | /* Also discard relocs on undefined weak syms with non-default | |
5514 | visibility. */ | |
5515 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5516 | && h->root.type == bfd_link_hash_undefweak) | |
5517 | eh->dyn_relocs = NULL; | |
65f38f15 | 5518 | } |
f4656909 | 5519 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
5520 | { |
5521 | /* For the non-shared case, discard space for relocs against | |
5522 | symbols which turn out to need copy relocs or are not | |
5523 | dynamic. */ | |
5524 | ||
5525 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
5526 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
5527 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
65f38f15 AM |
5528 | { |
5529 | /* Make sure this symbol is output as a dynamic symbol. | |
5530 | Undefined weak syms won't yet be marked as dynamic. */ | |
5531 | if (h->dynindx == -1 | |
5532 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5533 | { | |
ec338859 | 5534 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) |
b34976b6 | 5535 | return FALSE; |
65f38f15 AM |
5536 | } |
5537 | ||
5538 | /* If that succeeded, we know we'll be keeping all the | |
5539 | relocs. */ | |
5540 | if (h->dynindx != -1) | |
5541 | goto keep; | |
5542 | } | |
5543 | ||
5544 | eh->dyn_relocs = NULL; | |
5545 | ||
ec338859 | 5546 | keep: ; |
65f38f15 AM |
5547 | } |
5548 | ||
5549 | /* Finally, allocate space. */ | |
5550 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5551 | { | |
5552 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5553 | sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
5554 | } | |
5555 | ||
b34976b6 | 5556 | return TRUE; |
65f38f15 AM |
5557 | } |
5558 | ||
5559 | /* Find any dynamic relocs that apply to read-only sections. */ | |
5560 | ||
b34976b6 | 5561 | static bfd_boolean |
4ce794b7 | 5562 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
65f38f15 AM |
5563 | { |
5564 | struct ppc_link_hash_entry *eh; | |
5565 | struct ppc_dyn_relocs *p; | |
5566 | ||
e92d460e AM |
5567 | if (h->root.type == bfd_link_hash_warning) |
5568 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5569 | ||
65f38f15 AM |
5570 | eh = (struct ppc_link_hash_entry *) h; |
5571 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5572 | { | |
5573 | asection *s = p->sec->output_section; | |
5574 | ||
5575 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5576 | { | |
4ce794b7 | 5577 | struct bfd_link_info *info = inf; |
65f38f15 AM |
5578 | |
5579 | info->flags |= DF_TEXTREL; | |
5580 | ||
5581 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 5582 | return FALSE; |
65f38f15 AM |
5583 | } |
5584 | } | |
b34976b6 | 5585 | return TRUE; |
65f38f15 AM |
5586 | } |
5587 | ||
5588 | /* Set the sizes of the dynamic sections. */ | |
5589 | ||
b34976b6 | 5590 | static bfd_boolean |
4ce794b7 AM |
5591 | ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
5592 | struct bfd_link_info *info) | |
65f38f15 AM |
5593 | { |
5594 | struct ppc_link_hash_table *htab; | |
5595 | bfd *dynobj; | |
5596 | asection *s; | |
b34976b6 | 5597 | bfd_boolean relocs; |
65f38f15 AM |
5598 | bfd *ibfd; |
5599 | ||
5600 | htab = ppc_hash_table (info); | |
5601 | dynobj = htab->elf.dynobj; | |
5602 | if (dynobj == NULL) | |
5603 | abort (); | |
5604 | ||
5605 | if (htab->elf.dynamic_sections_created) | |
5606 | { | |
5607 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 5608 | if (info->executable) |
65f38f15 AM |
5609 | { |
5610 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5611 | if (s == NULL) | |
5612 | abort (); | |
5613 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5614 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5615 | } | |
5616 | } | |
5617 | ||
411e1bfb AM |
5618 | if (htab->tlsld_got.refcount > 0) |
5619 | { | |
4ce794b7 AM |
5620 | htab->tlsld_got.offset = htab->got->_raw_size; |
5621 | htab->got->_raw_size += 16; | |
411e1bfb | 5622 | if (info->shared) |
4ce794b7 | 5623 | htab->relgot->_raw_size += sizeof (Elf64_External_Rela); |
411e1bfb AM |
5624 | } |
5625 | else | |
5626 | htab->tlsld_got.offset = (bfd_vma) -1; | |
5627 | ||
65f38f15 AM |
5628 | /* Set up .got offsets for local syms, and space for local dynamic |
5629 | relocs. */ | |
5630 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5631 | { | |
411e1bfb AM |
5632 | struct got_entry **lgot_ents; |
5633 | struct got_entry **end_lgot_ents; | |
e7b938ca | 5634 | char *lgot_masks; |
65f38f15 AM |
5635 | bfd_size_type locsymcount; |
5636 | Elf_Internal_Shdr *symtab_hdr; | |
5637 | asection *srel; | |
5638 | ||
5639 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5640 | continue; | |
5641 | ||
5642 | for (s = ibfd->sections; s != NULL; s = s->next) | |
5643 | { | |
ec338859 | 5644 | struct ppc_dyn_relocs *p; |
65f38f15 | 5645 | |
ec338859 AM |
5646 | for (p = *((struct ppc_dyn_relocs **) |
5647 | &elf_section_data (s)->local_dynrel); | |
5648 | p != NULL; | |
5649 | p = p->next) | |
65f38f15 | 5650 | { |
ec338859 AM |
5651 | if (!bfd_is_abs_section (p->sec) |
5652 | && bfd_is_abs_section (p->sec->output_section)) | |
5653 | { | |
5654 | /* Input section has been discarded, either because | |
5655 | it is a copy of a linkonce section or due to | |
5656 | linker script /DISCARD/, so we'll be discarding | |
5657 | the relocs too. */ | |
5658 | } | |
248866a8 | 5659 | else if (p->count != 0) |
ec338859 AM |
5660 | { |
5661 | srel = elf_section_data (p->sec)->sreloc; | |
5662 | srel->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
248866a8 AM |
5663 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
5664 | info->flags |= DF_TEXTREL; | |
ec338859 | 5665 | } |
65f38f15 AM |
5666 | } |
5667 | } | |
5668 | ||
411e1bfb AM |
5669 | lgot_ents = elf_local_got_ents (ibfd); |
5670 | if (!lgot_ents) | |
65f38f15 AM |
5671 | continue; |
5672 | ||
5673 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5674 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 5675 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 5676 | lgot_masks = (char *) end_lgot_ents; |
4ce794b7 AM |
5677 | s = htab->got; |
5678 | srel = htab->relgot; | |
e7b938ca | 5679 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 5680 | { |
411e1bfb AM |
5681 | struct got_entry *ent; |
5682 | ||
5683 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
5684 | if (ent->got.refcount > 0) | |
5685 | { | |
e7b938ca | 5686 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb AM |
5687 | { |
5688 | if (htab->tlsld_got.offset == (bfd_vma) -1) | |
5689 | { | |
5690 | htab->tlsld_got.offset = s->_raw_size; | |
5691 | s->_raw_size += 16; | |
5692 | if (info->shared) | |
5693 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5694 | } | |
5695 | ent->got.offset = htab->tlsld_got.offset; | |
5696 | } | |
5697 | else | |
5698 | { | |
5699 | ent->got.offset = s->_raw_size; | |
e7b938ca | 5700 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb AM |
5701 | { |
5702 | s->_raw_size += 16; | |
5703 | if (info->shared) | |
5704 | srel->_raw_size += 2 * sizeof (Elf64_External_Rela); | |
5705 | } | |
5706 | else | |
5707 | { | |
5708 | s->_raw_size += 8; | |
5709 | if (info->shared) | |
5710 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5711 | } | |
5712 | } | |
5713 | } | |
5714 | else | |
5715 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
5716 | } |
5717 | } | |
5718 | ||
5719 | /* Allocate global sym .plt and .got entries, and space for global | |
5720 | sym dynamic relocs. */ | |
4ce794b7 | 5721 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
65f38f15 AM |
5722 | |
5723 | /* We now have determined the sizes of the various dynamic sections. | |
5724 | Allocate memory for them. */ | |
b34976b6 | 5725 | relocs = FALSE; |
65f38f15 AM |
5726 | for (s = dynobj->sections; s != NULL; s = s->next) |
5727 | { | |
5728 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5729 | continue; | |
5730 | ||
411e1bfb AM |
5731 | /* Reset _cooked_size since prelim layout will set it wrongly, |
5732 | and a non-zero _cooked_size sticks. */ | |
5733 | s->_cooked_size = 0; | |
5734 | ||
4ce794b7 | 5735 | if (s == htab->brlt || s == htab->relbrlt) |
721956f4 AM |
5736 | /* These haven't been allocated yet; don't strip. */ |
5737 | continue; | |
4ce794b7 | 5738 | else if (s == htab->got) |
ad8e1ba5 AM |
5739 | { |
5740 | /* Automatic multiple tocs aren't possible if we are using the | |
5741 | GOT. The GOT is accessed via r2, so we can't adjust r2. | |
5742 | FIXME: There's no reason why we couldn't lay out multiple | |
5743 | GOTs too. */ | |
5744 | if (s->_raw_size > elf_backend_got_header_size) | |
5745 | htab->no_multi_toc = 1; | |
5746 | } | |
4ce794b7 AM |
5747 | else if (s == htab->plt |
5748 | || s == htab->glink) | |
65f38f15 AM |
5749 | { |
5750 | /* Strip this section if we don't need it; see the | |
5751 | comment below. */ | |
5bd4f169 | 5752 | } |
65f38f15 | 5753 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 AM |
5754 | { |
5755 | if (s->_raw_size == 0) | |
5756 | { | |
5757 | /* If we don't need this section, strip it from the | |
5758 | output file. This is mostly to handle .rela.bss and | |
5759 | .rela.plt. We must create both sections in | |
5760 | create_dynamic_sections, because they must be created | |
5761 | before the linker maps input sections to output | |
5762 | sections. The linker does that before | |
5763 | adjust_dynamic_symbol is called, and it is that | |
5764 | function which decides whether anything needs to go | |
5765 | into these sections. */ | |
5bd4f169 AM |
5766 | } |
5767 | else | |
5768 | { | |
4ce794b7 | 5769 | if (s != htab->relplt) |
b34976b6 | 5770 | relocs = TRUE; |
5bd4f169 AM |
5771 | |
5772 | /* We use the reloc_count field as a counter if we need | |
5773 | to copy relocs into the output file. */ | |
5774 | s->reloc_count = 0; | |
5775 | } | |
5776 | } | |
65f38f15 | 5777 | else |
5bd4f169 AM |
5778 | { |
5779 | /* It's not one of our sections, so don't allocate space. */ | |
5780 | continue; | |
5781 | } | |
5782 | ||
65f38f15 | 5783 | if (s->_raw_size == 0) |
5bd4f169 AM |
5784 | { |
5785 | _bfd_strip_section_from_output (info, s); | |
5786 | continue; | |
5787 | } | |
5788 | ||
5f333394 AM |
5789 | /* .plt is in the bss section. We don't initialise it. */ |
5790 | if ((s->flags & SEC_LOAD) == 0) | |
5791 | continue; | |
5792 | ||
65f38f15 AM |
5793 | /* Allocate memory for the section contents. We use bfd_zalloc |
5794 | here in case unused entries are not reclaimed before the | |
5795 | section's contents are written out. This should not happen, | |
411e1bfb AM |
5796 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
5797 | sections instead of garbage. | |
5798 | We also rely on the section contents being zero when writing | |
5799 | the GOT. */ | |
4ce794b7 | 5800 | s->contents = bfd_zalloc (dynobj, s->_raw_size); |
65f38f15 | 5801 | if (s->contents == NULL) |
b34976b6 | 5802 | return FALSE; |
5bd4f169 AM |
5803 | } |
5804 | ||
e86ce104 | 5805 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
5806 | { |
5807 | /* Add some entries to the .dynamic section. We fill in the | |
5808 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
5809 | must add the entries now so that we get the correct size for | |
5810 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5811 | dynamic linker and used by the debugger. */ | |
dc810e39 | 5812 | #define add_dynamic_entry(TAG, VAL) \ |
4ce794b7 | 5813 | bfd_elf64_add_dynamic_entry (info, (TAG), (VAL)) |
dc810e39 | 5814 | |
36af4a4e | 5815 | if (info->executable) |
5bd4f169 | 5816 | { |
dc810e39 | 5817 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 5818 | return FALSE; |
5bd4f169 AM |
5819 | } |
5820 | ||
4ce794b7 | 5821 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5bd4f169 | 5822 | { |
dc810e39 AM |
5823 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
5824 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5825 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
5826 | || !add_dynamic_entry (DT_JMPREL, 0) |
5827 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 5828 | return FALSE; |
5bd4f169 AM |
5829 | } |
5830 | ||
19397422 AM |
5831 | if (NO_OPD_RELOCS) |
5832 | { | |
5833 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
5834 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 5835 | return FALSE; |
19397422 AM |
5836 | } |
5837 | ||
5bd4f169 AM |
5838 | if (relocs) |
5839 | { | |
dc810e39 AM |
5840 | if (!add_dynamic_entry (DT_RELA, 0) |
5841 | || !add_dynamic_entry (DT_RELASZ, 0) | |
5842 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 5843 | return FALSE; |
5bd4f169 | 5844 | |
65f38f15 AM |
5845 | /* If any dynamic relocs apply to a read-only section, |
5846 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 5847 | if ((info->flags & DF_TEXTREL) == 0) |
4ce794b7 | 5848 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
5bd4f169 | 5849 | |
65f38f15 | 5850 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 5851 | { |
65f38f15 | 5852 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 5853 | return FALSE; |
5bd4f169 | 5854 | } |
5bd4f169 | 5855 | } |
5bd4f169 | 5856 | } |
65f38f15 | 5857 | #undef add_dynamic_entry |
5bd4f169 | 5858 | |
b34976b6 | 5859 | return TRUE; |
5bd4f169 AM |
5860 | } |
5861 | ||
721956f4 | 5862 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 5863 | |
4ce794b7 AM |
5864 | static inline enum ppc_stub_type |
5865 | ppc_type_of_stub (asection *input_sec, | |
5866 | const Elf_Internal_Rela *rel, | |
5867 | struct ppc_link_hash_entry **hash, | |
5868 | bfd_vma destination) | |
5bd4f169 | 5869 | { |
721956f4 AM |
5870 | struct ppc_link_hash_entry *h = *hash; |
5871 | bfd_vma location; | |
5872 | bfd_vma branch_offset; | |
5873 | bfd_vma max_branch_offset; | |
4ce794b7 | 5874 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 | 5875 | |
721956f4 AM |
5876 | if (h != NULL) |
5877 | { | |
5878 | if (h->oh != NULL | |
721956f4 | 5879 | && h->oh->dynindx != -1) |
5bd4f169 | 5880 | { |
411e1bfb AM |
5881 | struct plt_entry *ent; |
5882 | for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next) | |
5883 | if (ent->addend == rel->r_addend | |
5884 | && ent->plt.offset != (bfd_vma) -1) | |
5885 | { | |
5886 | *hash = (struct ppc_link_hash_entry *) h->oh; | |
5887 | return ppc_stub_plt_call; | |
5888 | } | |
5bd4f169 AM |
5889 | } |
5890 | ||
ad8e1ba5 AM |
5891 | if (h->elf.root.type != bfd_link_hash_defined |
5892 | && h->elf.root.type != bfd_link_hash_defweak) | |
721956f4 | 5893 | return ppc_stub_none; |
5d1634d7 | 5894 | } |
5d1634d7 | 5895 | |
721956f4 AM |
5896 | /* Determine where the call point is. */ |
5897 | location = (input_sec->output_offset | |
5898 | + input_sec->output_section->vma | |
5899 | + rel->r_offset); | |
5d1634d7 | 5900 | |
721956f4 AM |
5901 | branch_offset = destination - location; |
5902 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 5903 | |
721956f4 AM |
5904 | /* Determine if a long branch stub is needed. */ |
5905 | max_branch_offset = 1 << 25; | |
4ce794b7 | 5906 | if (r_type != R_PPC64_REL24) |
721956f4 | 5907 | max_branch_offset = 1 << 15; |
5d1634d7 | 5908 | |
721956f4 AM |
5909 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
5910 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
5911 | is needed later. */ | |
5912 | return ppc_stub_long_branch; | |
5d1634d7 | 5913 | |
721956f4 | 5914 | return ppc_stub_none; |
5d1634d7 AM |
5915 | } |
5916 | ||
5917 | /* Build a .plt call stub. */ | |
5918 | ||
4ce794b7 AM |
5919 | static inline bfd_byte * |
5920 | build_plt_stub (bfd *obfd, bfd_byte *p, int offset) | |
5d1634d7 AM |
5921 | { |
5922 | #define PPC_LO(v) ((v) & 0xffff) | |
5923 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
5924 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
5925 | ||
5d1634d7 | 5926 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; |
ad8e1ba5 | 5927 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; |
5d1634d7 AM |
5928 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; |
5929 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 5930 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
5931 | offset += 8; |
5932 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
5933 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
ad8e1ba5 | 5934 | bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4; |
5d1634d7 AM |
5935 | offset += 8; |
5936 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
5937 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
5938 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
5939 | return p; | |
5940 | } | |
5941 | ||
b34976b6 | 5942 | static bfd_boolean |
4ce794b7 | 5943 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
5d1634d7 | 5944 | { |
721956f4 AM |
5945 | struct ppc_stub_hash_entry *stub_entry; |
5946 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
5947 | struct bfd_link_info *info; |
5948 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
5949 | asection *stub_sec; |
5950 | bfd *stub_bfd; | |
5951 | bfd_byte *loc; | |
5952 | bfd_byte *p; | |
5953 | unsigned int indx; | |
411e1bfb | 5954 | struct plt_entry *ent; |
721956f4 AM |
5955 | bfd_vma off; |
5956 | int size; | |
5d1634d7 | 5957 | |
721956f4 AM |
5958 | /* Massage our args to the form they really have. */ |
5959 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 5960 | info = in_arg; |
5d1634d7 | 5961 | |
5d1634d7 | 5962 | htab = ppc_hash_table (info); |
721956f4 | 5963 | stub_sec = stub_entry->stub_sec; |
5d1634d7 | 5964 | |
721956f4 AM |
5965 | /* Make a note of the offset within the stubs for this entry. */ |
5966 | stub_entry->stub_offset = stub_sec->_cooked_size; | |
5967 | loc = stub_sec->contents + stub_entry->stub_offset; | |
5968 | ||
ad8e1ba5 AM |
5969 | if (htab->emit_stub_syms) |
5970 | { | |
5971 | struct elf_link_hash_entry *h; | |
5972 | h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string, | |
5973 | TRUE, FALSE, FALSE); | |
5974 | if (h == NULL) | |
5975 | return FALSE; | |
5976 | h->root.type = bfd_link_hash_defined; | |
5977 | h->root.u.def.section = stub_entry->stub_sec; | |
5978 | h->root.u.def.value = stub_entry->stub_offset; | |
5979 | h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR | |
5980 | | ELF_LINK_HASH_DEF_REGULAR | |
5981 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
5982 | | ELF_LINK_FORCED_LOCAL); | |
5983 | } | |
5984 | ||
721956f4 AM |
5985 | stub_bfd = stub_sec->owner; |
5986 | ||
4ce794b7 | 5987 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
721956f4 | 5988 | switch (stub_entry->stub_type) |
5d1634d7 | 5989 | { |
721956f4 | 5990 | case ppc_stub_long_branch: |
ad8e1ba5 | 5991 | case ppc_stub_long_branch_r2off: |
721956f4 AM |
5992 | /* Branches are relative. This is where we are going to. */ |
5993 | off = (stub_entry->target_value | |
5994 | + stub_entry->target_section->output_offset | |
5995 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 5996 | |
721956f4 AM |
5997 | /* And this is where we are coming from. */ |
5998 | off -= (stub_entry->stub_offset | |
5999 | + stub_sec->output_offset | |
6000 | + stub_sec->output_section->vma); | |
e86ce104 | 6001 | |
ad8e1ba5 AM |
6002 | if (stub_entry->stub_type != ppc_stub_long_branch_r2off) |
6003 | size = 4; | |
6004 | else | |
6005 | { | |
6006 | bfd_vma r2off; | |
6007 | ||
6008 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6009 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
4ce794b7 | 6010 | bfd_put_32 (stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6011 | loc += 4; |
4ce794b7 | 6012 | bfd_put_32 (stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6013 | loc += 4; |
4ce794b7 | 6014 | bfd_put_32 (stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6015 | loc += 4; |
6016 | off -= 12; | |
6017 | size = 16; | |
6018 | } | |
4ce794b7 | 6019 | bfd_put_32 (stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
ad8e1ba5 AM |
6020 | |
6021 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); | |
721956f4 | 6022 | break; |
e86ce104 | 6023 | |
721956f4 | 6024 | case ppc_stub_plt_branch: |
ad8e1ba5 | 6025 | case ppc_stub_plt_branch_r2off: |
721956f4 AM |
6026 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
6027 | stub_entry->root.string + 9, | |
b34976b6 | 6028 | FALSE, FALSE); |
721956f4 AM |
6029 | if (br_entry == NULL) |
6030 | { | |
6031 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
6032 | stub_entry->root.string + 9); | |
b34976b6 AM |
6033 | htab->stub_error = TRUE; |
6034 | return FALSE; | |
721956f4 AM |
6035 | } |
6036 | ||
6037 | off = (stub_entry->target_value | |
6038 | + stub_entry->target_section->output_offset | |
6039 | + stub_entry->target_section->output_section->vma); | |
6040 | ||
4ce794b7 AM |
6041 | bfd_put_64 (htab->brlt->owner, off, |
6042 | htab->brlt->contents + br_entry->offset); | |
721956f4 AM |
6043 | |
6044 | if (info->shared) | |
6045 | { | |
6046 | /* Create a reloc for the branch lookup table entry. */ | |
6047 | Elf_Internal_Rela rela; | |
ad8e1ba5 | 6048 | bfd_byte *rl; |
5d1634d7 | 6049 | |
721956f4 | 6050 | rela.r_offset = (br_entry->offset |
4ce794b7 AM |
6051 | + htab->brlt->output_offset |
6052 | + htab->brlt->output_section->vma); | |
721956f4 AM |
6053 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
6054 | rela.r_addend = off; | |
6055 | ||
4ce794b7 AM |
6056 | rl = htab->relbrlt->contents; |
6057 | rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
6058 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
721956f4 AM |
6059 | } |
6060 | ||
6061 | off = (br_entry->offset | |
4ce794b7 AM |
6062 | + htab->brlt->output_offset |
6063 | + htab->brlt->output_section->vma | |
6064 | - elf_gp (htab->brlt->output_section->owner) | |
ad8e1ba5 | 6065 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6066 | |
ad8e1ba5 | 6067 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
5d1634d7 AM |
6068 | { |
6069 | (*_bfd_error_handler) | |
e86ce104 | 6070 | (_("linkage table error against `%s'"), |
721956f4 | 6071 | stub_entry->root.string); |
5d1634d7 | 6072 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
6073 | htab->stub_error = TRUE; |
6074 | return FALSE; | |
5d1634d7 | 6075 | } |
41bd81ab | 6076 | |
721956f4 | 6077 | indx = off; |
ad8e1ba5 AM |
6078 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
6079 | { | |
4ce794b7 | 6080 | bfd_put_32 (stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6081 | loc += 4; |
4ce794b7 | 6082 | bfd_put_32 (stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 AM |
6083 | size = 16; |
6084 | } | |
6085 | else | |
6086 | { | |
6087 | bfd_vma r2off; | |
6088 | ||
6089 | r2off = (htab->stub_group[stub_entry->target_section->id].toc_off | |
6090 | - htab->stub_group[stub_entry->id_sec->id].toc_off); | |
4ce794b7 | 6091 | bfd_put_32 (stub_bfd, STD_R2_40R1, loc); |
ad8e1ba5 | 6092 | loc += 4; |
4ce794b7 | 6093 | bfd_put_32 (stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc); |
ad8e1ba5 | 6094 | loc += 4; |
4ce794b7 | 6095 | bfd_put_32 (stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc); |
ad8e1ba5 | 6096 | loc += 4; |
4ce794b7 | 6097 | bfd_put_32 (stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc); |
ad8e1ba5 | 6098 | loc += 4; |
4ce794b7 | 6099 | bfd_put_32 (stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc); |
ad8e1ba5 AM |
6100 | size = 28; |
6101 | } | |
6102 | loc += 4; | |
4ce794b7 | 6103 | bfd_put_32 (stub_bfd, MTCTR_R11, loc); |
ad8e1ba5 | 6104 | loc += 4; |
4ce794b7 | 6105 | bfd_put_32 (stub_bfd, BCTR, loc); |
721956f4 | 6106 | break; |
5d1634d7 | 6107 | |
721956f4 | 6108 | case ppc_stub_plt_call: |
c862ae31 AM |
6109 | /* Do the best we can for shared libraries built without |
6110 | exporting ".foo" for each "foo". This can happen when symbol | |
6111 | versioning scripts strip all bar a subset of symbols. */ | |
6112 | if (stub_entry->h->oh->root.type != bfd_link_hash_defined | |
6113 | && stub_entry->h->oh->root.type != bfd_link_hash_defweak) | |
6114 | { | |
6115 | /* Point the symbol at the stub. There may be multiple stubs, | |
6116 | we don't really care; The main thing is to make this sym | |
6117 | defined somewhere. */ | |
6118 | stub_entry->h->oh->root.type = bfd_link_hash_defined; | |
6119 | stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec; | |
6120 | stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset; | |
6121 | } | |
6122 | ||
721956f4 | 6123 | /* Now build the stub. */ |
411e1bfb AM |
6124 | off = (bfd_vma) -1; |
6125 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
6126 | if (ent->addend == stub_entry->addend) | |
6127 | { | |
6128 | off = ent->plt.offset; | |
6129 | break; | |
6130 | } | |
721956f4 AM |
6131 | if (off >= (bfd_vma) -2) |
6132 | abort (); | |
6133 | ||
6134 | off &= ~ (bfd_vma) 1; | |
4ce794b7 AM |
6135 | off += (htab->plt->output_offset |
6136 | + htab->plt->output_section->vma | |
6137 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6138 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6139 | |
ad8e1ba5 | 6140 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
721956f4 AM |
6141 | { |
6142 | (*_bfd_error_handler) | |
6143 | (_("linkage table error against `%s'"), | |
6144 | stub_entry->h->elf.root.root.string); | |
6145 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
6146 | htab->stub_error = TRUE; |
6147 | return FALSE; | |
721956f4 AM |
6148 | } |
6149 | ||
4ce794b7 | 6150 | p = build_plt_stub (stub_bfd, loc, off); |
721956f4 AM |
6151 | size = p - loc; |
6152 | break; | |
6153 | ||
6154 | default: | |
6155 | BFD_FAIL (); | |
b34976b6 | 6156 | return FALSE; |
721956f4 AM |
6157 | } |
6158 | ||
6159 | stub_sec->_cooked_size += size; | |
b34976b6 | 6160 | return TRUE; |
721956f4 AM |
6161 | } |
6162 | ||
6163 | /* As above, but don't actually build the stub. Just bump offset so | |
6164 | we know stub section sizes, and select plt_branch stubs where | |
6165 | long_branch stubs won't do. */ | |
6166 | ||
b34976b6 | 6167 | static bfd_boolean |
4ce794b7 | 6168 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
721956f4 AM |
6169 | { |
6170 | struct ppc_stub_hash_entry *stub_entry; | |
6171 | struct ppc_link_hash_table *htab; | |
6172 | bfd_vma off; | |
6173 | int size; | |
6174 | ||
6175 | /* Massage our args to the form they really have. */ | |
6176 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
4ce794b7 | 6177 | htab = in_arg; |
721956f4 AM |
6178 | |
6179 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
6180 | { | |
411e1bfb | 6181 | struct plt_entry *ent; |
58ac9f71 | 6182 | off = (bfd_vma) -1; |
411e1bfb AM |
6183 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
6184 | if (ent->addend == stub_entry->addend) | |
6185 | { | |
6186 | off = ent->plt.offset & ~(bfd_vma) 1; | |
6187 | break; | |
6188 | } | |
58ac9f71 | 6189 | if (off >= (bfd_vma) -2) |
411e1bfb | 6190 | abort (); |
4ce794b7 AM |
6191 | off += (htab->plt->output_offset |
6192 | + htab->plt->output_section->vma | |
6193 | - elf_gp (htab->plt->output_section->owner) | |
ad8e1ba5 | 6194 | - htab->stub_group[stub_entry->id_sec->id].toc_off); |
721956f4 | 6195 | |
ad8e1ba5 | 6196 | size = PLT_CALL_STUB_SIZE; |
4ce794b7 | 6197 | if (PPC_HA (off + 16) != PPC_HA (off)) |
721956f4 AM |
6198 | size += 4; |
6199 | } | |
6200 | else | |
6201 | { | |
ad8e1ba5 AM |
6202 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
6203 | variants. */ | |
721956f4 AM |
6204 | off = (stub_entry->target_value |
6205 | + stub_entry->target_section->output_offset | |
6206 | + stub_entry->target_section->output_section->vma); | |
6207 | off -= (stub_entry->stub_sec->_raw_size | |
6208 | + stub_entry->stub_sec->output_offset | |
6209 | + stub_entry->stub_sec->output_section->vma); | |
6210 | ||
ad8e1ba5 AM |
6211 | /* Reset the stub type from the plt variant in case we now |
6212 | can reach with a shorter stub. */ | |
6213 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
6214 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
6215 | ||
6216 | size = 4; | |
6217 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
6218 | { | |
6219 | off -= 12; | |
6220 | size = 16; | |
6221 | } | |
6222 | ||
6223 | /* If the branch offset if too big, use a ppc_stub_plt_branch. */ | |
721956f4 AM |
6224 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
6225 | { | |
6226 | struct ppc_branch_hash_entry *br_entry; | |
6227 | ||
6228 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6229 | stub_entry->root.string + 9, | |
b34976b6 | 6230 | TRUE, FALSE); |
721956f4 AM |
6231 | if (br_entry == NULL) |
6232 | { | |
6233 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
6234 | stub_entry->root.string + 9); | |
b34976b6 AM |
6235 | htab->stub_error = TRUE; |
6236 | return FALSE; | |
721956f4 AM |
6237 | } |
6238 | ||
6239 | if (br_entry->iter != htab->stub_iteration) | |
6240 | { | |
6241 | br_entry->iter = htab->stub_iteration; | |
4ce794b7 AM |
6242 | br_entry->offset = htab->brlt->_raw_size; |
6243 | htab->brlt->_raw_size += 8; | |
721956f4 | 6244 | } |
ad8e1ba5 AM |
6245 | |
6246 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
721956f4 | 6247 | size = 16; |
ad8e1ba5 AM |
6248 | if (stub_entry->stub_type != ppc_stub_plt_branch) |
6249 | size = 28; | |
721956f4 AM |
6250 | } |
6251 | } | |
6252 | ||
6253 | stub_entry->stub_sec->_raw_size += size; | |
b34976b6 | 6254 | return TRUE; |
721956f4 AM |
6255 | } |
6256 | ||
6257 | /* Set up various things so that we can make a list of input sections | |
6258 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 6259 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
6260 | |
6261 | int | |
4ce794b7 | 6262 | ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
721956f4 AM |
6263 | { |
6264 | bfd *input_bfd; | |
734b6cf9 | 6265 | int top_id, top_index, id; |
721956f4 | 6266 | asection *section; |
734b6cf9 | 6267 | asection **input_list; |
721956f4 AM |
6268 | bfd_size_type amt; |
6269 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6270 | ||
4ce794b7 | 6271 | if (htab->brlt == NULL) |
721956f4 AM |
6272 | return 0; |
6273 | ||
1e2f5b6e | 6274 | /* Find the top input section id. */ |
3d6f9012 | 6275 | for (input_bfd = info->input_bfds, top_id = 3; |
721956f4 AM |
6276 | input_bfd != NULL; |
6277 | input_bfd = input_bfd->link_next) | |
6278 | { | |
721956f4 AM |
6279 | for (section = input_bfd->sections; |
6280 | section != NULL; | |
6281 | section = section->next) | |
6282 | { | |
6283 | if (top_id < section->id) | |
6284 | top_id = section->id; | |
6285 | } | |
6286 | } | |
721956f4 AM |
6287 | |
6288 | amt = sizeof (struct map_stub) * (top_id + 1); | |
4ce794b7 | 6289 | htab->stub_group = bfd_zmalloc (amt); |
721956f4 AM |
6290 | if (htab->stub_group == NULL) |
6291 | return -1; | |
6292 | ||
3d6f9012 AM |
6293 | /* Set toc_off for com, und, abs and ind sections. */ |
6294 | for (id = 0; id < 3; id++) | |
6295 | htab->stub_group[id].toc_off = TOC_BASE_OFF; | |
721956f4 | 6296 | |
3d6f9012 | 6297 | elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd); |
734b6cf9 AM |
6298 | |
6299 | /* We can't use output_bfd->section_count here to find the top output | |
6300 | section index as some sections may have been removed, and | |
6301 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
6302 | for (section = output_bfd->sections, top_index = 0; | |
6303 | section != NULL; | |
6304 | section = section->next) | |
6305 | { | |
6306 | if (top_index < section->index) | |
6307 | top_index = section->index; | |
6308 | } | |
6309 | ||
6310 | htab->top_index = top_index; | |
6311 | amt = sizeof (asection *) * (top_index + 1); | |
4ce794b7 | 6312 | input_list = bfd_zmalloc (amt); |
734b6cf9 AM |
6313 | htab->input_list = input_list; |
6314 | if (input_list == NULL) | |
6315 | return -1; | |
6316 | ||
721956f4 AM |
6317 | return 1; |
6318 | } | |
6319 | ||
ad8e1ba5 AM |
6320 | /* The linker repeatedly calls this function for each toc input |
6321 | section. Group input bfds such that the toc within a group | |
6322 | is less than 64k in size. Will break with cute linker scripts | |
6323 | that play games with dot in the output toc section. */ | |
6324 | ||
6325 | void | |
4ce794b7 | 6326 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
ad8e1ba5 AM |
6327 | { |
6328 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6329 | ||
6330 | if (!htab->no_multi_toc) | |
6331 | { | |
6332 | bfd_vma addr = isec->output_offset + isec->output_section->vma; | |
6333 | bfd_vma off = addr - htab->toc_curr; | |
6334 | if (off + isec->_raw_size > 0x10000) | |
6335 | { | |
6336 | htab->toc_curr = addr; | |
6337 | htab->multi_toc_needed = 1; | |
6338 | } | |
6339 | elf_gp (isec->owner) = (htab->toc_curr | |
6340 | - elf_gp (isec->output_section->owner) | |
6341 | + TOC_BASE_OFF); | |
6342 | } | |
6343 | } | |
6344 | ||
6345 | /* Called after the last call to the above function. */ | |
6346 | ||
6347 | void | |
4ce794b7 AM |
6348 | ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED, |
6349 | struct bfd_link_info *info) | |
ad8e1ba5 AM |
6350 | { |
6351 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
ad8e1ba5 AM |
6352 | |
6353 | /* toc_curr tracks the TOC offset used for code sections below in | |
6354 | ppc64_elf_next_input_section. Start off at 0x8000. */ | |
3d6f9012 | 6355 | htab->toc_curr = TOC_BASE_OFF; |
ad8e1ba5 AM |
6356 | } |
6357 | ||
9b5ecbd0 AM |
6358 | /* No toc references were found in ISEC. If the code in ISEC makes no |
6359 | calls, then there's no need to use toc adjusting stubs when branching | |
6360 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
6361 | load r2. */ | |
6362 | ||
6363 | static int | |
4ce794b7 | 6364 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
9b5ecbd0 AM |
6365 | { |
6366 | bfd_byte *contents; | |
6367 | bfd_size_type i; | |
6368 | int ret; | |
6369 | int branch_ok; | |
6370 | ||
6371 | /* Hack for linux kernel. .fixup contains branches, but only back to | |
6372 | the function that hit an exception. */ | |
6373 | branch_ok = strcmp (isec->name, ".fixup") == 0; | |
6374 | ||
6375 | contents = elf_section_data (isec)->this_hdr.contents; | |
6376 | if (contents == NULL) | |
6377 | { | |
6378 | contents = bfd_malloc (isec->_raw_size); | |
6379 | if (contents == NULL) | |
6380 | return -1; | |
6381 | if (! bfd_get_section_contents (isec->owner, isec, contents, | |
6382 | (file_ptr) 0, isec->_raw_size)) | |
6383 | { | |
6384 | free (contents); | |
6385 | return -1; | |
6386 | } | |
6387 | if (info->keep_memory) | |
6388 | elf_section_data (isec)->this_hdr.contents = contents; | |
6389 | } | |
6390 | ||
6391 | /* Code scan, because we don't necessarily have relocs on calls to | |
6392 | static functions. */ | |
6393 | ret = 0; | |
6394 | for (i = 0; i < isec->_raw_size; i += 4) | |
6395 | { | |
6396 | unsigned long insn = bfd_get_32 (isec->owner, contents + i); | |
6397 | /* Is this a branch? */ | |
6398 | if ((insn & (0x1f << 26)) == (18 << 26) | |
6399 | /* If branch and link, it's a function call. */ | |
6400 | && ((insn & 1) != 0 | |
6401 | /* Sibling calls use a plain branch. I don't know a way | |
6402 | of deciding whether a branch is really a sibling call. */ | |
6403 | || !branch_ok)) | |
6404 | { | |
6405 | ret = 1; | |
6406 | break; | |
6407 | } | |
6408 | } | |
6409 | ||
6410 | if (elf_section_data (isec)->this_hdr.contents != contents) | |
6411 | free (contents); | |
6412 | return ret; | |
6413 | } | |
6414 | ||
721956f4 AM |
6415 | /* The linker repeatedly calls this function for each input section, |
6416 | in the order that input sections are linked into output sections. | |
6417 | Build lists of input sections to determine groupings between which | |
6418 | we may insert linker stubs. */ | |
6419 | ||
9b5ecbd0 | 6420 | bfd_boolean |
4ce794b7 | 6421 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
721956f4 AM |
6422 | { |
6423 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
9b5ecbd0 | 6424 | int ret; |
721956f4 | 6425 | |
734b6cf9 AM |
6426 | if ((isec->output_section->flags & SEC_CODE) != 0 |
6427 | && isec->output_section->index <= htab->top_index) | |
721956f4 | 6428 | { |
734b6cf9 | 6429 | asection **list = htab->input_list + isec->output_section->index; |
3d6f9012 | 6430 | /* Steal the link_sec pointer for our list. */ |
721956f4 | 6431 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
3d6f9012 AM |
6432 | /* This happens to make the list in reverse order, |
6433 | which is what we want. */ | |
734b6cf9 AM |
6434 | PREV_SEC (isec) = *list; |
6435 | *list = isec; | |
721956f4 | 6436 | } |
ad8e1ba5 AM |
6437 | |
6438 | /* If a code section has a function that uses the TOC then we need | |
6439 | to use the right TOC (obviously). Also, make sure that .opd gets | |
6440 | the correct TOC value. */ | |
6441 | if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0) | |
9b5ecbd0 AM |
6442 | { |
6443 | if (elf_gp (isec->owner) != 0) | |
6444 | htab->toc_curr = elf_gp (isec->owner); | |
6445 | } | |
6446 | else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0) | |
6447 | return FALSE; | |
6448 | else | |
6449 | isec->has_gp_reloc = ret; | |
ad8e1ba5 AM |
6450 | |
6451 | /* Functions that don't use the TOC can belong in any TOC group. | |
6452 | Use the last TOC base. This happens to make _init and _fini | |
6453 | pasting work. */ | |
6454 | htab->stub_group[isec->id].toc_off = htab->toc_curr; | |
9b5ecbd0 | 6455 | return TRUE; |
721956f4 AM |
6456 | } |
6457 | ||
6458 | /* See whether we can group stub sections together. Grouping stub | |
6459 | sections may result in fewer stubs. More importantly, we need to | |
6460 | put all .init* and .fini* stubs at the beginning of the .init or | |
6461 | .fini output sections respectively, because glibc splits the | |
6462 | _init and _fini functions into multiple parts. Putting a stub in | |
6463 | the middle of a function is not a good idea. */ | |
6464 | ||
6465 | static void | |
4ce794b7 AM |
6466 | group_sections (struct ppc_link_hash_table *htab, |
6467 | bfd_size_type stub_group_size, | |
6468 | bfd_boolean stubs_always_before_branch) | |
721956f4 | 6469 | { |
734b6cf9 AM |
6470 | asection **list = htab->input_list + htab->top_index; |
6471 | do | |
721956f4 | 6472 | { |
734b6cf9 AM |
6473 | asection *tail = *list; |
6474 | while (tail != NULL) | |
721956f4 | 6475 | { |
734b6cf9 AM |
6476 | asection *curr; |
6477 | asection *prev; | |
6478 | bfd_size_type total; | |
6479 | bfd_boolean big_sec; | |
6480 | bfd_vma curr_toc; | |
6481 | ||
6482 | curr = tail; | |
6483 | if (tail->_cooked_size) | |
6484 | total = tail->_cooked_size; | |
6485 | else | |
6486 | total = tail->_raw_size; | |
6487 | big_sec = total >= stub_group_size; | |
6488 | curr_toc = htab->stub_group[tail->id].toc_off; | |
6489 | ||
6490 | while ((prev = PREV_SEC (curr)) != NULL | |
6491 | && ((total += curr->output_offset - prev->output_offset) | |
ad8e1ba5 AM |
6492 | < stub_group_size) |
6493 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
734b6cf9 AM |
6494 | curr = prev; |
6495 | ||
6496 | /* OK, the size from the start of CURR to the end is less | |
6497 | than stub_group_size and thus can be handled by one stub | |
6498 | section. (or the tail section is itself larger than | |
6499 | stub_group_size, in which case we may be toast.) We | |
6500 | should really be keeping track of the total size of stubs | |
6501 | added here, as stubs contribute to the final output | |
6502 | section size. That's a little tricky, and this way will | |
6503 | only break if stubs added make the total size more than | |
6504 | 2^25, ie. for the default stub_group_size, if stubs total | |
6505 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
6506 | do | |
721956f4 AM |
6507 | { |
6508 | prev = PREV_SEC (tail); | |
734b6cf9 | 6509 | /* Set up this stub group. */ |
721956f4 AM |
6510 | htab->stub_group[tail->id].link_sec = curr; |
6511 | } | |
734b6cf9 AM |
6512 | while (tail != curr && (tail = prev) != NULL); |
6513 | ||
6514 | /* But wait, there's more! Input sections up to stub_group_size | |
6515 | bytes before the stub section can be handled by it too. | |
6516 | Don't do this if we have a really large section after the | |
6517 | stubs, as adding more stubs increases the chance that | |
6518 | branches may not reach into the stub section. */ | |
6519 | if (!stubs_always_before_branch && !big_sec) | |
6520 | { | |
6521 | total = 0; | |
6522 | while (prev != NULL | |
6523 | && ((total += tail->output_offset - prev->output_offset) | |
6524 | < stub_group_size) | |
6525 | && htab->stub_group[prev->id].toc_off == curr_toc) | |
6526 | { | |
6527 | tail = prev; | |
6528 | prev = PREV_SEC (tail); | |
6529 | htab->stub_group[tail->id].link_sec = curr; | |
6530 | } | |
6531 | } | |
6532 | tail = prev; | |
721956f4 AM |
6533 | } |
6534 | } | |
734b6cf9 AM |
6535 | while (list-- != htab->input_list); |
6536 | free (htab->input_list); | |
721956f4 AM |
6537 | #undef PREV_SEC |
6538 | } | |
6539 | ||
721956f4 AM |
6540 | /* Determine and set the size of the stub section for a final link. |
6541 | ||
6542 | The basic idea here is to examine all the relocations looking for | |
6543 | PC-relative calls to a target that is unreachable with a "bl" | |
6544 | instruction. */ | |
6545 | ||
b34976b6 | 6546 | bfd_boolean |
4ce794b7 AM |
6547 | ppc64_elf_size_stubs (bfd *output_bfd, |
6548 | bfd *stub_bfd, | |
6549 | struct bfd_link_info *info, | |
6550 | bfd_signed_vma group_size, | |
6551 | asection *(*add_stub_section) (const char *, asection *), | |
6552 | void (*layout_sections_again) (void)) | |
721956f4 AM |
6553 | { |
6554 | bfd_size_type stub_group_size; | |
b34976b6 | 6555 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6556 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
6557 | ||
6558 | /* Stash our params away. */ | |
6559 | htab->stub_bfd = stub_bfd; | |
6560 | htab->add_stub_section = add_stub_section; | |
6561 | htab->layout_sections_again = layout_sections_again; | |
6562 | stubs_always_before_branch = group_size < 0; | |
6563 | if (group_size < 0) | |
6564 | stub_group_size = -group_size; | |
6565 | else | |
6566 | stub_group_size = group_size; | |
6567 | if (stub_group_size == 1) | |
6568 | { | |
6569 | /* Default values. */ | |
58ac9f71 AM |
6570 | if (stubs_always_before_branch) |
6571 | { | |
6572 | stub_group_size = 0x1e00000; | |
6573 | if (htab->has_14bit_branch) | |
6574 | stub_group_size = 0x7800; | |
6575 | } | |
6576 | else | |
6577 | { | |
6578 | stub_group_size = 0x1c00000; | |
6579 | if (htab->has_14bit_branch) | |
6580 | stub_group_size = 0x7000; | |
6581 | } | |
721956f4 AM |
6582 | } |
6583 | ||
6584 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
6585 | ||
721956f4 AM |
6586 | while (1) |
6587 | { | |
6588 | bfd *input_bfd; | |
6589 | unsigned int bfd_indx; | |
6590 | asection *stub_sec; | |
b34976b6 | 6591 | bfd_boolean stub_changed; |
721956f4 AM |
6592 | |
6593 | htab->stub_iteration += 1; | |
b34976b6 | 6594 | stub_changed = FALSE; |
721956f4 AM |
6595 | |
6596 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
6597 | input_bfd != NULL; | |
6598 | input_bfd = input_bfd->link_next, bfd_indx++) | |
6599 | { | |
6600 | Elf_Internal_Shdr *symtab_hdr; | |
6601 | asection *section; | |
6cdc0ccc | 6602 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
6603 | |
6604 | /* We'll need the symbol table in a second. */ | |
6605 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6606 | if (symtab_hdr->sh_info == 0) | |
6607 | continue; | |
6608 | ||
721956f4 AM |
6609 | /* Walk over each section attached to the input bfd. */ |
6610 | for (section = input_bfd->sections; | |
6611 | section != NULL; | |
6612 | section = section->next) | |
6613 | { | |
721956f4 | 6614 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
6615 | |
6616 | /* If there aren't any relocs, then there's nothing more | |
6617 | to do. */ | |
6618 | if ((section->flags & SEC_RELOC) == 0 | |
6619 | || section->reloc_count == 0) | |
6620 | continue; | |
6621 | ||
6622 | /* If this section is a link-once section that will be | |
6623 | discarded, then don't create any stubs. */ | |
6624 | if (section->output_section == NULL | |
6625 | || section->output_section->owner != output_bfd) | |
6626 | continue; | |
6627 | ||
1e2f5b6e AM |
6628 | /* Get the relocs. */ |
6629 | internal_relocs | |
4ce794b7 | 6630 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 6631 | info->keep_memory); |
721956f4 | 6632 | if (internal_relocs == NULL) |
1e2f5b6e | 6633 | goto error_ret_free_local; |
721956f4 AM |
6634 | |
6635 | /* Now examine each relocation. */ | |
6636 | irela = internal_relocs; | |
6637 | irelaend = irela + section->reloc_count; | |
6638 | for (; irela < irelaend; irela++) | |
6639 | { | |
4ce794b7 AM |
6640 | enum elf_ppc64_reloc_type r_type; |
6641 | unsigned int r_indx; | |
721956f4 AM |
6642 | enum ppc_stub_type stub_type; |
6643 | struct ppc_stub_hash_entry *stub_entry; | |
6644 | asection *sym_sec; | |
6645 | bfd_vma sym_value; | |
6646 | bfd_vma destination; | |
6647 | struct ppc_link_hash_entry *hash; | |
411e1bfb AM |
6648 | struct elf_link_hash_entry *h; |
6649 | Elf_Internal_Sym *sym; | |
721956f4 AM |
6650 | char *stub_name; |
6651 | const asection *id_sec; | |
6652 | ||
6653 | r_type = ELF64_R_TYPE (irela->r_info); | |
6654 | r_indx = ELF64_R_SYM (irela->r_info); | |
6655 | ||
4ce794b7 | 6656 | if (r_type >= R_PPC64_max) |
721956f4 AM |
6657 | { |
6658 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 6659 | goto error_ret_free_internal; |
721956f4 AM |
6660 | } |
6661 | ||
6662 | /* Only look for stubs on branch instructions. */ | |
4ce794b7 AM |
6663 | if (r_type != R_PPC64_REL24 |
6664 | && r_type != R_PPC64_REL14 | |
6665 | && r_type != R_PPC64_REL14_BRTAKEN | |
6666 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
721956f4 AM |
6667 | continue; |
6668 | ||
6669 | /* Now determine the call target, its name, value, | |
6670 | section. */ | |
721956f4 | 6671 | destination = 0; |
411e1bfb AM |
6672 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6673 | r_indx, input_bfd)) | |
6674 | goto error_ret_free_internal; | |
6675 | hash = (struct ppc_link_hash_entry *) h; | |
6676 | ||
6677 | if (hash == NULL) | |
721956f4 AM |
6678 | { |
6679 | /* It's a local symbol. */ | |
411e1bfb | 6680 | sym_value = sym->st_value; |
721956f4 AM |
6681 | destination = (sym_value + irela->r_addend |
6682 | + sym_sec->output_offset | |
6683 | + sym_sec->output_section->vma); | |
6684 | } | |
6685 | else | |
6686 | { | |
6687 | /* It's an external symbol. */ | |
411e1bfb | 6688 | sym_value = 0; |
721956f4 AM |
6689 | if (hash->elf.root.type == bfd_link_hash_defined |
6690 | || hash->elf.root.type == bfd_link_hash_defweak) | |
6691 | { | |
721956f4 AM |
6692 | sym_value = hash->elf.root.u.def.value; |
6693 | if (sym_sec->output_section != NULL) | |
6694 | destination = (sym_value + irela->r_addend | |
6695 | + sym_sec->output_offset | |
6696 | + sym_sec->output_section->vma); | |
6697 | } | |
6698 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
6699 | ; | |
6700 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
6701 | ; | |
6702 | else | |
6703 | { | |
6704 | bfd_set_error (bfd_error_bad_value); | |
6705 | goto error_ret_free_internal; | |
6706 | } | |
6707 | } | |
6708 | ||
6709 | /* Determine what (if any) linker stub is needed. */ | |
6710 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
6711 | destination); | |
ad8e1ba5 AM |
6712 | |
6713 | if (stub_type != ppc_stub_plt_call) | |
6714 | { | |
6715 | /* Check whether we need a TOC adjusting stub. | |
6716 | Since the linker pastes together pieces from | |
6717 | different object files when creating the | |
6718 | _init and _fini functions, it may be that a | |
6719 | call to what looks like a local sym is in | |
6720 | fact a call needing a TOC adjustment. */ | |
6721 | if (sym_sec != NULL | |
6722 | && sym_sec->output_section != NULL | |
6723 | && (htab->stub_group[sym_sec->id].toc_off | |
9b5ecbd0 AM |
6724 | != htab->stub_group[section->id].toc_off) |
6725 | && sym_sec->has_gp_reloc | |
6726 | && section->has_gp_reloc) | |
ad8e1ba5 AM |
6727 | stub_type = ppc_stub_long_branch_r2off; |
6728 | } | |
6729 | ||
721956f4 AM |
6730 | if (stub_type == ppc_stub_none) |
6731 | continue; | |
6732 | ||
411e1bfb AM |
6733 | /* __tls_get_addr calls might be eliminated. */ |
6734 | if (stub_type != ppc_stub_plt_call | |
6735 | && hash != NULL | |
6736 | && &hash->elf == htab->tls_get_addr | |
6737 | && section->has_tls_reloc | |
6738 | && irela != internal_relocs) | |
6739 | { | |
6740 | /* Get tls info. */ | |
e7b938ca | 6741 | char *tls_mask; |
411e1bfb | 6742 | |
e7b938ca | 6743 | if (!get_tls_mask (&tls_mask, &local_syms, |
411e1bfb AM |
6744 | irela - 1, input_bfd)) |
6745 | goto error_ret_free_internal; | |
e7b938ca | 6746 | if (*tls_mask != 0) |
411e1bfb AM |
6747 | continue; |
6748 | } | |
6749 | ||
721956f4 AM |
6750 | /* Support for grouping stub sections. */ |
6751 | id_sec = htab->stub_group[section->id].link_sec; | |
6752 | ||
6753 | /* Get the name of this stub. */ | |
6754 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
6755 | if (!stub_name) | |
6756 | goto error_ret_free_internal; | |
6757 | ||
6758 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 6759 | stub_name, FALSE, FALSE); |
721956f4 AM |
6760 | if (stub_entry != NULL) |
6761 | { | |
6762 | /* The proper stub has already been created. */ | |
6763 | free (stub_name); | |
6764 | continue; | |
6765 | } | |
6766 | ||
6767 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
6768 | if (stub_entry == NULL) | |
6769 | { | |
6770 | free (stub_name); | |
6cdc0ccc AM |
6771 | error_ret_free_internal: |
6772 | if (elf_section_data (section)->relocs == NULL) | |
6773 | free (internal_relocs); | |
6774 | error_ret_free_local: | |
6775 | if (local_syms != NULL | |
6776 | && (symtab_hdr->contents | |
6777 | != (unsigned char *) local_syms)) | |
6778 | free (local_syms); | |
b34976b6 | 6779 | return FALSE; |
721956f4 AM |
6780 | } |
6781 | ||
ad8e1ba5 | 6782 | stub_entry->stub_type = stub_type; |
721956f4 AM |
6783 | stub_entry->target_value = sym_value; |
6784 | stub_entry->target_section = sym_sec; | |
721956f4 | 6785 | stub_entry->h = hash; |
411e1bfb | 6786 | stub_entry->addend = irela->r_addend; |
b34976b6 | 6787 | stub_changed = TRUE; |
721956f4 AM |
6788 | } |
6789 | ||
6790 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 6791 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 6792 | free (internal_relocs); |
721956f4 | 6793 | } |
6cdc0ccc AM |
6794 | |
6795 | if (local_syms != NULL | |
6796 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6797 | { | |
6798 | if (!info->keep_memory) | |
6799 | free (local_syms); | |
6800 | else | |
6801 | symtab_hdr->contents = (unsigned char *) local_syms; | |
6802 | } | |
721956f4 AM |
6803 | } |
6804 | ||
6805 | if (!stub_changed) | |
6806 | break; | |
6807 | ||
6808 | /* OK, we've added some stubs. Find out the new size of the | |
6809 | stub sections. */ | |
6810 | for (stub_sec = htab->stub_bfd->sections; | |
6811 | stub_sec != NULL; | |
6812 | stub_sec = stub_sec->next) | |
6813 | { | |
6814 | stub_sec->_raw_size = 0; | |
6815 | stub_sec->_cooked_size = 0; | |
6816 | } | |
4ce794b7 AM |
6817 | htab->brlt->_raw_size = 0; |
6818 | htab->brlt->_cooked_size = 0; | |
721956f4 AM |
6819 | |
6820 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab); | |
6821 | ||
6822 | /* Ask the linker to do its stuff. */ | |
6823 | (*htab->layout_sections_again) (); | |
6824 | } | |
6825 | ||
afbe61cf AM |
6826 | /* It would be nice to strip .branch_lt from the output if the |
6827 | section is empty, but it's too late. If we strip sections here, | |
6828 | the dynamic symbol table is corrupted since the section symbol | |
6829 | for the stripped section isn't written. */ | |
721956f4 | 6830 | |
b34976b6 | 6831 | return TRUE; |
721956f4 AM |
6832 | } |
6833 | ||
6834 | /* Called after we have determined section placement. If sections | |
805fc799 | 6835 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 6836 | |
805fc799 | 6837 | bfd_vma |
4ce794b7 | 6838 | ppc64_elf_toc (bfd *obfd) |
721956f4 | 6839 | { |
805fc799 AM |
6840 | asection *s; |
6841 | bfd_vma TOCstart; | |
721956f4 | 6842 | |
805fc799 AM |
6843 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
6844 | order. The TOC starts where the first of these sections starts. */ | |
6845 | s = bfd_get_section_by_name (obfd, ".got"); | |
6846 | if (s == NULL) | |
6847 | s = bfd_get_section_by_name (obfd, ".toc"); | |
6848 | if (s == NULL) | |
6849 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
6850 | if (s == NULL) | |
6851 | s = bfd_get_section_by_name (obfd, ".plt"); | |
6852 | if (s == NULL) | |
6853 | { | |
6854 | /* This may happen for | |
6855 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
6856 | .toc directive | |
6857 | o bad linker script | |
6858 | o --gc-sections and empty TOC sections | |
6859 | ||
6860 | FIXME: Warn user? */ | |
6861 | ||
6862 | /* Look for a likely section. We probably won't even be | |
6863 | using TOCstart. */ | |
6864 | for (s = obfd->sections; s != NULL; s = s->next) | |
6865 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
6866 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
6867 | break; | |
721956f4 | 6868 | if (s == NULL) |
805fc799 AM |
6869 | for (s = obfd->sections; s != NULL; s = s->next) |
6870 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
6871 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
6872 | break; | |
721956f4 | 6873 | if (s == NULL) |
805fc799 AM |
6874 | for (s = obfd->sections; s != NULL; s = s->next) |
6875 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
6876 | break; | |
721956f4 | 6877 | if (s == NULL) |
805fc799 AM |
6878 | for (s = obfd->sections; s != NULL; s = s->next) |
6879 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
6880 | break; | |
6881 | } | |
721956f4 | 6882 | |
805fc799 AM |
6883 | TOCstart = 0; |
6884 | if (s != NULL) | |
6885 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 6886 | |
805fc799 | 6887 | return TOCstart; |
721956f4 AM |
6888 | } |
6889 | ||
6890 | /* Build all the stubs associated with the current output file. | |
6891 | The stubs are kept in a hash table attached to the main linker | |
6892 | hash table. This function is called via gldelf64ppc_finish. */ | |
6893 | ||
b34976b6 | 6894 | bfd_boolean |
4ce794b7 AM |
6895 | ppc64_elf_build_stubs (bfd_boolean emit_stub_syms, |
6896 | struct bfd_link_info *info, | |
6897 | char **stats) | |
5d1634d7 AM |
6898 | { |
6899 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 6900 | asection *stub_sec; |
5d1634d7 AM |
6901 | bfd_byte *p; |
6902 | ||
ad8e1ba5 | 6903 | htab->emit_stub_syms = emit_stub_syms; |
721956f4 AM |
6904 | for (stub_sec = htab->stub_bfd->sections; |
6905 | stub_sec != NULL; | |
6906 | stub_sec = stub_sec->next) | |
6907 | { | |
6908 | bfd_size_type size; | |
6909 | ||
6910 | /* Allocate memory to hold the linker stubs. */ | |
6911 | size = stub_sec->_raw_size; | |
6912 | if (size != 0) | |
6913 | { | |
4ce794b7 | 6914 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); |
721956f4 | 6915 | if (stub_sec->contents == NULL) |
b34976b6 | 6916 | return FALSE; |
721956f4 AM |
6917 | } |
6918 | stub_sec->_cooked_size = 0; | |
6919 | } | |
5d1634d7 | 6920 | |
4ce794b7 | 6921 | if (htab->plt != NULL) |
5d1634d7 | 6922 | { |
9f951329 | 6923 | unsigned int indx; |
ad8e1ba5 | 6924 | bfd_vma plt0; |
9f951329 | 6925 | |
721956f4 | 6926 | /* Build the .glink plt call stub. */ |
4ce794b7 AM |
6927 | plt0 = (htab->plt->output_section->vma |
6928 | + htab->plt->output_offset | |
6929 | - (htab->glink->output_section->vma | |
6930 | + htab->glink->output_offset | |
ad8e1ba5 AM |
6931 | + GLINK_CALL_STUB_SIZE)); |
6932 | if (plt0 + 0x80008000 > 0xffffffff) | |
721956f4 | 6933 | { |
ad8e1ba5 AM |
6934 | (*_bfd_error_handler) (_(".glink and .plt too far apart")); |
6935 | bfd_set_error (bfd_error_bad_value); | |
6936 | return FALSE; | |
721956f4 | 6937 | } |
721956f4 | 6938 | |
4ce794b7 AM |
6939 | p = htab->glink->contents; |
6940 | bfd_put_32 (htab->glink->owner, MFCTR_R12, p); | |
ad8e1ba5 | 6941 | p += 4; |
4ce794b7 | 6942 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p); |
ad8e1ba5 | 6943 | p += 4; |
4ce794b7 | 6944 | bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p); |
ad8e1ba5 | 6945 | p += 4; |
4ce794b7 | 6946 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 6947 | p += 4; |
4ce794b7 | 6948 | bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p); |
ad8e1ba5 | 6949 | p += 4; |
4ce794b7 | 6950 | bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p); |
ad8e1ba5 | 6951 | p += 4; |
4ce794b7 | 6952 | bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p); |
ad8e1ba5 | 6953 | p += 4; |
4ce794b7 | 6954 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); |
ad8e1ba5 | 6955 | p += 4; |
4ce794b7 | 6956 | bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p); |
ad8e1ba5 | 6957 | p += 4; |
4ce794b7 | 6958 | bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p); |
ad8e1ba5 | 6959 | p += 4; |
4ce794b7 | 6960 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 6961 | p += 4; |
4ce794b7 | 6962 | bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p); |
ad8e1ba5 | 6963 | p += 4; |
4ce794b7 | 6964 | bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p); |
ad8e1ba5 | 6965 | p += 4; |
4ce794b7 | 6966 | bfd_put_32 (htab->glink->owner, MTCTR_R11, p); |
ad8e1ba5 | 6967 | p += 4; |
4ce794b7 | 6968 | bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p); |
ad8e1ba5 | 6969 | p += 4; |
4ce794b7 | 6970 | bfd_put_32 (htab->glink->owner, BCTR, p); |
ad8e1ba5 AM |
6971 | p += 4; |
6972 | ||
9f951329 AM |
6973 | /* Build the .glink lazy link call stubs. */ |
6974 | indx = 0; | |
4ce794b7 | 6975 | while (p < htab->glink->contents + htab->glink->_raw_size) |
9f951329 AM |
6976 | { |
6977 | if (indx < 0x8000) | |
6978 | { | |
4ce794b7 | 6979 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); |
9f951329 AM |
6980 | p += 4; |
6981 | } | |
6982 | else | |
6983 | { | |
4ce794b7 | 6984 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); |
9f951329 | 6985 | p += 4; |
4ce794b7 | 6986 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); |
9f951329 AM |
6987 | p += 4; |
6988 | } | |
4ce794b7 AM |
6989 | bfd_put_32 (htab->glink->owner, |
6990 | B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 6991 | indx++; |
9f951329 AM |
6992 | p += 4; |
6993 | } | |
4ce794b7 | 6994 | htab->glink->_cooked_size = p - htab->glink->contents; |
5d1634d7 | 6995 | } |
5d1634d7 | 6996 | |
4ce794b7 | 6997 | if (htab->brlt->_raw_size != 0) |
721956f4 | 6998 | { |
4ce794b7 AM |
6999 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
7000 | htab->brlt->_raw_size); | |
7001 | if (htab->brlt->contents == NULL) | |
b34976b6 | 7002 | return FALSE; |
721956f4 | 7003 | } |
5d1634d7 | 7004 | |
721956f4 AM |
7005 | /* Build the stubs as directed by the stub hash table. */ |
7006 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 7007 | |
721956f4 AM |
7008 | for (stub_sec = htab->stub_bfd->sections; |
7009 | stub_sec != NULL; | |
7010 | stub_sec = stub_sec->next) | |
7011 | { | |
7012 | if (stub_sec->_raw_size != stub_sec->_cooked_size) | |
7013 | break; | |
7014 | } | |
5d1634d7 | 7015 | |
721956f4 | 7016 | if (stub_sec != NULL |
4ce794b7 | 7017 | || htab->glink->_raw_size != htab->glink->_cooked_size) |
5d1634d7 | 7018 | { |
b34976b6 | 7019 | htab->stub_error = TRUE; |
721956f4 | 7020 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 7021 | } |
721956f4 | 7022 | |
d2a300cf AM |
7023 | if (htab->stub_error) |
7024 | return FALSE; | |
7025 | ||
7026 | if (stats != NULL) | |
7027 | { | |
7028 | *stats = bfd_malloc (500); | |
7029 | if (*stats == NULL) | |
7030 | return FALSE; | |
7031 | ||
7032 | sprintf (*stats, _("linker stubs in %u groups\n" | |
7033 | " branch %lu\n" | |
7034 | " toc adjust %lu\n" | |
7035 | " long branch %lu\n" | |
7036 | " long toc adj %lu\n" | |
7037 | " plt call %lu"), | |
7038 | htab->stub_bfd->section_count, | |
4ce794b7 AM |
7039 | htab->stub_count[ppc_stub_long_branch - 1], |
7040 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
7041 | htab->stub_count[ppc_stub_plt_branch - 1], | |
7042 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
7043 | htab->stub_count[ppc_stub_plt_call - 1]); | |
d2a300cf AM |
7044 | } |
7045 | return TRUE; | |
5bd4f169 AM |
7046 | } |
7047 | ||
5bd4f169 AM |
7048 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7049 | to handle the relocations for a section. | |
7050 | ||
7051 | The relocs are always passed as Rela structures; if the section | |
7052 | actually uses Rel structures, the r_addend field will always be | |
7053 | zero. | |
7054 | ||
7055 | This function is responsible for adjust the section contents as | |
7056 | necessary, and (if using Rela relocs and generating a | |
7057 | relocateable output file) adjusting the reloc addend as | |
7058 | necessary. | |
7059 | ||
7060 | This function does not have to worry about setting the reloc | |
7061 | address or the reloc symbol index. | |
7062 | ||
7063 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7064 | ||
7065 | LOCAL_SECTIONS is an array giving the section in the input file | |
7066 | corresponding to the st_shndx field of each local symbol. | |
7067 | ||
7068 | The global hash table entry for the global symbols can be found | |
7069 | via elf_sym_hashes (input_bfd). | |
7070 | ||
7071 | When generating relocateable output, this function must handle | |
7072 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
7073 | going to be the section symbol corresponding to the output | |
7074 | section, which means that the addend must be adjusted | |
7075 | accordingly. */ | |
7076 | ||
b34976b6 | 7077 | static bfd_boolean |
4ce794b7 AM |
7078 | ppc64_elf_relocate_section (bfd *output_bfd, |
7079 | struct bfd_link_info *info, | |
7080 | bfd *input_bfd, | |
7081 | asection *input_section, | |
7082 | bfd_byte *contents, | |
7083 | Elf_Internal_Rela *relocs, | |
7084 | Elf_Internal_Sym *local_syms, | |
7085 | asection **local_sections) | |
5bd4f169 | 7086 | { |
65f38f15 | 7087 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
7088 | Elf_Internal_Shdr *symtab_hdr; |
7089 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
7090 | Elf_Internal_Rela *rel; |
7091 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
7092 | Elf_Internal_Rela outrel; |
7093 | bfd_byte *loc; | |
411e1bfb | 7094 | struct got_entry **local_got_ents; |
5bd4f169 | 7095 | bfd_vma TOCstart; |
b34976b6 AM |
7096 | bfd_boolean ret = TRUE; |
7097 | bfd_boolean is_opd; | |
96e0dda4 | 7098 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 7099 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 7100 | |
b491616a | 7101 | if (info->relocateable) |
b34976b6 | 7102 | return TRUE; |
b491616a | 7103 | |
65f38f15 | 7104 | /* Initialize howto table if needed. */ |
5bd4f169 | 7105 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
7106 | ppc_howto_init (); |
7107 | ||
65f38f15 | 7108 | htab = ppc_hash_table (info); |
411e1bfb | 7109 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 7110 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
7111 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
7112 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 7113 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 7114 | |
5bd4f169 AM |
7115 | rel = relocs; |
7116 | relend = relocs + input_section->reloc_count; | |
7117 | for (; rel < relend; rel++) | |
7118 | { | |
04c9666a | 7119 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
7120 | bfd_vma addend; |
7121 | bfd_reloc_status_type r; | |
7122 | Elf_Internal_Sym *sym; | |
7123 | asection *sec; | |
7124 | struct elf_link_hash_entry *h; | |
721956f4 | 7125 | struct elf_link_hash_entry *fdh; |
5bd4f169 | 7126 | const char *sym_name; |
5bd4f169 | 7127 | unsigned long r_symndx; |
951fd09b | 7128 | char tls_mask, tls_gd, tls_type; |
5bd4f169 | 7129 | bfd_vma relocation; |
b34976b6 AM |
7130 | bfd_boolean unresolved_reloc; |
7131 | bfd_boolean warned; | |
adadcc0c | 7132 | long insn, mask; |
721956f4 AM |
7133 | struct ppc_stub_hash_entry *stub_entry; |
7134 | bfd_vma max_br_offset; | |
7135 | bfd_vma from; | |
5bd4f169 | 7136 | |
4ce794b7 | 7137 | r_type = ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 7138 | r_symndx = ELF64_R_SYM (rel->r_info); |
4ce794b7 AM |
7139 | sym = NULL; |
7140 | sec = NULL; | |
7141 | h = NULL; | |
7142 | sym_name = NULL; | |
b34976b6 AM |
7143 | unresolved_reloc = FALSE; |
7144 | warned = FALSE; | |
65f38f15 | 7145 | |
0b13192e | 7146 | if (r_symndx < symtab_hdr->sh_info) |
5bd4f169 AM |
7147 | { |
7148 | /* It's a local symbol. */ | |
7149 | sym = local_syms + r_symndx; | |
7150 | sec = local_sections[r_symndx]; | |
411e1bfb | 7151 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
f8df10f4 | 7152 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
1e2f5b6e AM |
7153 | if (elf_section_data (sec) != NULL) |
7154 | { | |
7155 | long *opd_sym_adjust; | |
7156 | ||
f0abc2a1 | 7157 | opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust; |
1e2f5b6e AM |
7158 | if (opd_sym_adjust != NULL && sym->st_value % 24 == 0) |
7159 | relocation += opd_sym_adjust[sym->st_value / 24]; | |
7160 | } | |
5bd4f169 AM |
7161 | } |
7162 | else | |
7163 | { | |
7164 | /* It's a global symbol. */ | |
7165 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7166 | while (h->root.type == bfd_link_hash_indirect | |
7167 | || h->root.type == bfd_link_hash_warning) | |
7168 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7169 | sym_name = h->root.root.string; | |
65f38f15 | 7170 | relocation = 0; |
5bd4f169 AM |
7171 | if (h->root.type == bfd_link_hash_defined |
7172 | || h->root.type == bfd_link_hash_defweak) | |
7173 | { | |
7174 | sec = h->root.u.def.section; | |
65f38f15 AM |
7175 | if (sec->output_section == NULL) |
7176 | /* Set a flag that will be cleared later if we find a | |
7177 | relocation value for this symbol. output_section | |
7178 | is typically NULL for symbols satisfied by a shared | |
7179 | library. */ | |
b34976b6 | 7180 | unresolved_reloc = TRUE; |
5bd4f169 AM |
7181 | else |
7182 | relocation = (h->root.u.def.value | |
7183 | + sec->output_section->vma | |
7184 | + sec->output_offset); | |
7185 | } | |
7186 | else if (h->root.type == bfd_link_hash_undefweak) | |
65f38f15 | 7187 | ; |
671bae9c | 7188 | else if (info->shared |
65f38f15 AM |
7189 | && !info->no_undefined |
7190 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
7191 | ; | |
5bd4f169 AM |
7192 | else |
7193 | { | |
7194 | if (! ((*info->callbacks->undefined_symbol) | |
7195 | (info, h->root.root.string, input_bfd, input_section, | |
411e1bfb AM |
7196 | rel->r_offset, (!info->shared |
7197 | || info->no_undefined | |
7198 | || ELF_ST_VISIBILITY (h->other))))) | |
b34976b6 AM |
7199 | return FALSE; |
7200 | warned = TRUE; | |
5bd4f169 AM |
7201 | } |
7202 | } | |
7203 | ||
951fd09b AM |
7204 | /* TLS optimizations. Replace instruction sequences and relocs |
7205 | based on information we collected in tls_optimize. We edit | |
7206 | RELOCS so that --emit-relocs will output something sensible | |
7207 | for the final instruction stream. */ | |
7208 | tls_mask = 0; | |
7209 | tls_gd = 0; | |
d881513a | 7210 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
7211 | { |
7212 | if (h != NULL) | |
e7b938ca | 7213 | tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask; |
411e1bfb AM |
7214 | else if (local_got_ents != NULL) |
7215 | { | |
e7b938ca AM |
7216 | char *lgot_masks; |
7217 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
7218 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb AM |
7219 | } |
7220 | } | |
7221 | ||
7222 | /* Ensure reloc mapping code below stays sane. */ | |
7223 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
7224 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
7225 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
7226 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
7227 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
7228 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
7229 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
7230 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
7231 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
7232 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
7233 | abort (); | |
7234 | switch (r_type) | |
7235 | { | |
7236 | default: | |
411e1bfb AM |
7237 | break; |
7238 | ||
7239 | case R_PPC64_TOC16: | |
7240 | case R_PPC64_TOC16_LO: | |
7241 | case R_PPC64_TOC16_DS: | |
7242 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
7243 | { |
7244 | /* Check for toc tls entries. */ | |
7245 | char *toc_tls; | |
951fd09b | 7246 | int retval; |
411e1bfb | 7247 | |
e7b938ca | 7248 | retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd); |
951fd09b | 7249 | if (retval == 0) |
411e1bfb AM |
7250 | return FALSE; |
7251 | ||
7252 | if (toc_tls) | |
7253 | { | |
951fd09b | 7254 | tls_mask = *toc_tls; |
411e1bfb AM |
7255 | if (r_type == R_PPC64_TOC16_DS |
7256 | || r_type == R_PPC64_TOC16_LO_DS) | |
81407a69 AM |
7257 | { |
7258 | if (tls_mask != 0 | |
7259 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
7260 | goto toctprel; | |
7261 | } | |
411e1bfb | 7262 | else |
951fd09b AM |
7263 | { |
7264 | /* If we found a GD reloc pair, then we might be | |
7265 | doing a GD->IE transition. */ | |
7266 | if (retval == 2) | |
7267 | { | |
7268 | tls_gd = TLS_TPRELGD; | |
7269 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7270 | goto tls_get_addr_check; | |
7271 | } | |
7272 | else if (retval == 3) | |
7273 | { | |
7274 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7275 | goto tls_get_addr_check; | |
7276 | } | |
7277 | } | |
411e1bfb AM |
7278 | } |
7279 | } | |
7280 | break; | |
7281 | ||
7282 | case R_PPC64_GOT_TPREL16_DS: | |
7283 | case R_PPC64_GOT_TPREL16_LO_DS: | |
951fd09b AM |
7284 | if (tls_mask != 0 |
7285 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7286 | { |
7287 | bfd_vma insn; | |
81407a69 | 7288 | toctprel: |
411e1bfb AM |
7289 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); |
7290 | insn &= 31 << 21; | |
7291 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
7292 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
7293 | r_type = R_PPC64_TPREL16_HA; | |
7294 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7295 | } | |
7296 | break; | |
7297 | ||
7298 | case R_PPC64_TLS: | |
951fd09b | 7299 | if (tls_mask == 0) |
411e1bfb AM |
7300 | { |
7301 | /* Check for toc tls entries. */ | |
7302 | char *toc_tls; | |
7303 | ||
e7b938ca | 7304 | if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd)) |
411e1bfb AM |
7305 | return FALSE; |
7306 | ||
7307 | if (toc_tls) | |
951fd09b | 7308 | tls_mask = *toc_tls; |
411e1bfb | 7309 | } |
951fd09b AM |
7310 | if (tls_mask != 0 |
7311 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7312 | { |
7313 | bfd_vma insn, rtra; | |
7314 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
7315 | if ((insn & ((31 << 26) | (31 << 11))) | |
7316 | == ((31 << 26) | (13 << 11))) | |
7317 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7318 | else if ((insn & ((31 << 26) | (31 << 16))) | |
7319 | == ((31 << 26) | (13 << 16))) | |
7320 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
7321 | else | |
7322 | abort (); | |
7323 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
7324 | /* add -> addi. */ | |
7325 | insn = 14 << 26; | |
7326 | else if ((insn & (31 << 1)) == 23 << 1 | |
7327 | && ((insn & (31 << 6)) < 14 << 6 | |
7328 | || ((insn & (31 << 6)) >= 16 << 6 | |
7329 | && (insn & (31 << 6)) < 24 << 6))) | |
7330 | /* load and store indexed -> dform. */ | |
7331 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
7332 | else if ((insn & (31 << 1)) == 21 << 1 | |
7333 | && (insn & (0x1a << 6)) == 0) | |
7334 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7335 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
7336 | | ((insn >> 6) & 1)); | |
7337 | else if ((insn & (31 << 1)) == 21 << 1 | |
7338 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
7339 | /* lwax -> lwa. */ | |
7340 | insn = (58 << 26) | 2; | |
7341 | else | |
7342 | abort (); | |
7343 | insn |= rtra; | |
7344 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
7345 | r_type = R_PPC64_TPREL16_LO; | |
7346 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7347 | /* Was PPC64_TLS which sits on insn boundary, now | |
7348 | PPC64_TPREL16_LO which is at insn+2. */ | |
7349 | rel->r_offset += 2; | |
7350 | } | |
7351 | break; | |
7352 | ||
411e1bfb AM |
7353 | case R_PPC64_GOT_TLSGD16_HI: |
7354 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
7355 | tls_gd = TLS_TPRELGD; |
7356 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7357 | goto tls_gdld_hi; | |
7358 | break; | |
7359 | ||
411e1bfb AM |
7360 | case R_PPC64_GOT_TLSLD16_HI: |
7361 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7362 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 7363 | { |
951fd09b AM |
7364 | tls_gdld_hi: |
7365 | if ((tls_mask & tls_gd) != 0) | |
7366 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7367 | + R_PPC64_GOT_TPREL16_DS); | |
7368 | else | |
411e1bfb | 7369 | { |
951fd09b AM |
7370 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7371 | rel->r_offset -= 2; | |
7372 | r_type = R_PPC64_NONE; | |
411e1bfb | 7373 | } |
951fd09b | 7374 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
7375 | } |
7376 | break; | |
7377 | ||
951fd09b AM |
7378 | case R_PPC64_GOT_TLSGD16: |
7379 | case R_PPC64_GOT_TLSGD16_LO: | |
7380 | tls_gd = TLS_TPRELGD; | |
7381 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7382 | goto tls_get_addr_check; | |
7383 | break; | |
411e1bfb | 7384 | |
951fd09b AM |
7385 | case R_PPC64_GOT_TLSLD16: |
7386 | case R_PPC64_GOT_TLSLD16_LO: | |
7387 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7388 | { | |
7389 | tls_get_addr_check: | |
7390 | if (rel + 1 < relend) | |
411e1bfb | 7391 | { |
951fd09b AM |
7392 | enum elf_ppc64_reloc_type r_type2; |
7393 | unsigned long r_symndx2; | |
7394 | struct elf_link_hash_entry *h2; | |
7395 | bfd_vma insn1, insn2, insn3; | |
7396 | bfd_vma offset; | |
7397 | ||
7398 | /* The next instruction should be a call to | |
7399 | __tls_get_addr. Peek at the reloc to be sure. */ | |
4ce794b7 | 7400 | r_type2 = ELF64_R_TYPE (rel[1].r_info); |
951fd09b AM |
7401 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); |
7402 | if (r_symndx2 < symtab_hdr->sh_info | |
7403 | || (r_type2 != R_PPC64_REL14 | |
7404 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
7405 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
7406 | && r_type2 != R_PPC64_REL24)) | |
7407 | break; | |
7408 | ||
7409 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
7410 | while (h2->root.type == bfd_link_hash_indirect | |
7411 | || h2->root.type == bfd_link_hash_warning) | |
7412 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
7413 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
7414 | break; | |
7415 | ||
7416 | /* OK, it checks out. Replace the call. */ | |
7417 | offset = rel[1].r_offset; | |
7418 | insn1 = bfd_get_32 (output_bfd, | |
7419 | contents + rel->r_offset - 2); | |
7420 | insn3 = bfd_get_32 (output_bfd, | |
7421 | contents + offset + 4); | |
7422 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 7423 | { |
951fd09b AM |
7424 | /* IE */ |
7425 | insn1 &= (1 << 26) - (1 << 2); | |
7426 | insn1 |= 58 << 26; /* ld */ | |
7427 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
7428 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
7429 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
7430 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7431 | + R_PPC64_GOT_TPREL16_DS); | |
7432 | else | |
7433 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
7434 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7435 | } |
7436 | else | |
951fd09b AM |
7437 | { |
7438 | /* LE */ | |
7439 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
7440 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7441 | if (tls_gd == 0) | |
7442 | { | |
7443 | /* Was an LD reloc. */ | |
7444 | r_symndx = 0; | |
7445 | rel->r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7446 | rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7447 | } | |
7448 | r_type = R_PPC64_TPREL16_HA; | |
7449 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7450 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
7451 | R_PPC64_TPREL16_LO); | |
7452 | rel[1].r_offset += 2; | |
7453 | } | |
7454 | if (insn3 == NOP | |
7455 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
7456 | { | |
7457 | insn3 = insn2; | |
7458 | insn2 = NOP; | |
7459 | rel[1].r_offset += 4; | |
7460 | } | |
7461 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
7462 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7463 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
7464 | if (tls_gd == 0) | |
7465 | { | |
7466 | /* We changed the symbol on an LD reloc. Start over | |
ad8e1ba5 | 7467 | in order to get h, sym, sec etc. right. */ |
951fd09b AM |
7468 | rel--; |
7469 | continue; | |
7470 | } | |
411e1bfb | 7471 | } |
411e1bfb | 7472 | } |
411e1bfb AM |
7473 | break; |
7474 | ||
7475 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
7476 | if (rel + 1 < relend |
7477 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
7478 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 7479 | { |
951fd09b AM |
7480 | if ((tls_mask & TLS_GD) == 0) |
7481 | { | |
7482 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
7483 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7484 | r_type = R_PPC64_TPREL64; | |
7485 | else | |
7486 | { | |
4ce794b7 | 7487 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
951fd09b AM |
7488 | r_type = R_PPC64_NONE; |
7489 | } | |
7490 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7491 | } | |
7492 | } | |
7493 | else | |
7494 | { | |
7495 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb | 7496 | { |
4ce794b7 | 7497 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
411e1bfb | 7498 | r_type = R_PPC64_NONE; |
951fd09b | 7499 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 7500 | } |
411e1bfb AM |
7501 | } |
7502 | break; | |
7503 | ||
7504 | case R_PPC64_TPREL64: | |
951fd09b | 7505 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
7506 | { |
7507 | r_type = R_PPC64_NONE; | |
7508 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7509 | } | |
7510 | break; | |
7511 | } | |
7512 | ||
7513 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 7514 | insn = 0; |
65f38f15 | 7515 | switch (r_type) |
5bd4f169 AM |
7516 | { |
7517 | default: | |
65f38f15 | 7518 | break; |
5bd4f169 | 7519 | |
65f38f15 AM |
7520 | /* Branch taken prediction relocations. */ |
7521 | case R_PPC64_ADDR14_BRTAKEN: | |
7522 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
7523 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
7524 | /* Fall thru. */ | |
65f38f15 | 7525 | |
86c76c7b | 7526 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
7527 | case R_PPC64_ADDR14_BRNTAKEN: |
7528 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
7529 | insn |= bfd_get_32 (output_bfd, |
7530 | contents + rel->r_offset) & ~(0x01 << 21); | |
96e0dda4 AM |
7531 | if (is_power4) |
7532 | { | |
7533 | /* Set 'a' bit. This is 0b00010 in BO field for branch | |
7534 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
7535 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
7536 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
7537 | insn |= 0x02 << 21; | |
7538 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
7539 | insn |= 0x08 << 21; | |
7540 | else | |
7541 | break; | |
7542 | } | |
65f38f15 | 7543 | else |
96e0dda4 | 7544 | { |
411e1bfb | 7545 | from = (rel->r_offset |
805fc799 AM |
7546 | + input_section->output_offset |
7547 | + input_section->output_section->vma); | |
7548 | ||
96e0dda4 | 7549 | /* Invert 'y' bit if not the default. */ |
411e1bfb | 7550 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) |
96e0dda4 AM |
7551 | insn ^= 0x01 << 21; |
7552 | } | |
86c76c7b | 7553 | |
4ce794b7 | 7554 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
65f38f15 | 7555 | break; |
5bd4f169 | 7556 | |
65f38f15 | 7557 | case R_PPC64_REL24: |
ad8e1ba5 AM |
7558 | /* Calls to functions with a different TOC, such as calls to |
7559 | shared objects, need to alter the TOC pointer. This is | |
7560 | done using a linkage stub. A REL24 branching to these | |
7561 | linkage stubs needs to be followed by a nop, as the nop | |
7562 | will be replaced with an instruction to restore the TOC | |
7563 | base pointer. */ | |
7564 | if (((h != NULL | |
7565 | && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL | |
7566 | && fdh->plt.plist != NULL) | |
7567 | || ((fdh = h, sec) != NULL | |
7568 | && sec->output_section != NULL | |
7569 | && (htab->stub_group[sec->id].toc_off | |
7570 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 | 7571 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
ad8e1ba5 AM |
7572 | rel, htab)) != NULL |
7573 | && (stub_entry->stub_type == ppc_stub_plt_call | |
7574 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off | |
7575 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
41bd81ab | 7576 | { |
b34976b6 | 7577 | bfd_boolean can_plt_call = 0; |
721956f4 | 7578 | |
411e1bfb | 7579 | if (rel->r_offset + 8 <= input_section->_cooked_size) |
41bd81ab | 7580 | { |
411e1bfb | 7581 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
721956f4 AM |
7582 | if (insn == NOP |
7583 | || insn == CROR_151515 || insn == CROR_313131) | |
41bd81ab | 7584 | { |
4ce794b7 | 7585 | bfd_put_32 (input_bfd, LD_R2_40R1, |
411e1bfb | 7586 | contents + rel->r_offset + 4); |
721956f4 | 7587 | can_plt_call = 1; |
41bd81ab | 7588 | } |
5bd4f169 | 7589 | } |
721956f4 AM |
7590 | |
7591 | if (!can_plt_call) | |
7592 | { | |
ad8e1ba5 AM |
7593 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7594 | { | |
7595 | /* If this is a plain branch rather than a branch | |
7596 | and link, don't require a nop. */ | |
7597 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
7598 | if ((insn & 1) == 0) | |
7599 | can_plt_call = 1; | |
7600 | } | |
7601 | else | |
7602 | { | |
7603 | if (strcmp (input_section->output_section->name, | |
7604 | ".init") == 0 | |
7605 | || strcmp (input_section->output_section->name, | |
7606 | ".fini") == 0) | |
7607 | (*_bfd_error_handler) | |
7608 | (_("%s(%s+0x%lx): automatic multiple TOCs " | |
7609 | "not supported using your crt files; " | |
7610 | "recompile with -mminimal-toc or upgrade gcc"), | |
7611 | bfd_archive_filename (input_bfd), | |
7612 | input_section->name, | |
7613 | (long) rel->r_offset); | |
7614 | else | |
7615 | (*_bfd_error_handler) | |
7616 | (_("%s(%s+0x%lx): sibling call optimization to `%s' " | |
7617 | "does not allow automatic multiple TOCs; " | |
7618 | "recompile with -mminimal-toc or " | |
7619 | "-fno-optimize-sibling-calls, " | |
7620 | "or make `%s' extern"), | |
7621 | bfd_archive_filename (input_bfd), | |
7622 | input_section->name, | |
7623 | (long) rel->r_offset, | |
7624 | sym_name, | |
7625 | sym_name); | |
7626 | bfd_set_error (bfd_error_bad_value); | |
7627 | ret = FALSE; | |
7628 | } | |
721956f4 AM |
7629 | } |
7630 | ||
7631 | if (can_plt_call) | |
7632 | { | |
7633 | relocation = (stub_entry->stub_offset | |
7634 | + stub_entry->stub_sec->output_offset | |
7635 | + stub_entry->stub_sec->output_section->vma); | |
ad8e1ba5 AM |
7636 | if (stub_entry->stub_type == ppc_stub_plt_call) |
7637 | unresolved_reloc = FALSE; | |
721956f4 | 7638 | } |
5bd4f169 | 7639 | } |
e86ce104 AM |
7640 | |
7641 | if (h != NULL | |
7642 | && h->root.type == bfd_link_hash_undefweak | |
721956f4 | 7643 | && relocation == 0 |
411e1bfb | 7644 | && rel->r_addend == 0) |
e86ce104 | 7645 | { |
721956f4 AM |
7646 | /* Tweak calls to undefined weak functions to point at a |
7647 | blr. We can thus call a weak function without first | |
7648 | checking whether the function is defined. We have a | |
7649 | blr at the end of .sfpr. */ | |
805fc799 | 7650 | BFD_ASSERT (htab->sfpr->_raw_size != 0); |
721956f4 AM |
7651 | relocation = (htab->sfpr->_raw_size - 4 |
7652 | + htab->sfpr->output_offset | |
7653 | + htab->sfpr->output_section->vma); | |
411e1bfb | 7654 | from = (rel->r_offset |
721956f4 AM |
7655 | + input_section->output_offset |
7656 | + input_section->output_section->vma); | |
805fc799 | 7657 | |
721956f4 AM |
7658 | /* But let's not be silly about it. If the blr isn't in |
7659 | reach, just go to the next instruction. */ | |
805fc799 AM |
7660 | if (relocation - from + (1 << 25) >= (1 << 26) |
7661 | || htab->sfpr->_raw_size == 0) | |
721956f4 | 7662 | relocation = from + 4; |
e86ce104 | 7663 | } |
65f38f15 AM |
7664 | break; |
7665 | } | |
5bd4f169 | 7666 | |
65f38f15 | 7667 | /* Set `addend'. */ |
411e1bfb AM |
7668 | tls_type = 0; |
7669 | addend = rel->r_addend; | |
65f38f15 AM |
7670 | switch (r_type) |
7671 | { | |
7672 | default: | |
7673 | (*_bfd_error_handler) | |
7674 | (_("%s: unknown relocation type %d for symbol %s"), | |
7675 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
5bd4f169 | 7676 | |
65f38f15 | 7677 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7678 | ret = FALSE; |
65f38f15 | 7679 | continue; |
5bd4f169 | 7680 | |
65f38f15 | 7681 | case R_PPC64_NONE: |
411e1bfb | 7682 | case R_PPC64_TLS: |
04c9666a AM |
7683 | case R_PPC64_GNU_VTINHERIT: |
7684 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 7685 | continue; |
5bd4f169 AM |
7686 | |
7687 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
7688 | address in the GOT as relocation value instead of the | |
411e1bfb | 7689 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 7690 | symbol and put the symbol value there. */ |
411e1bfb AM |
7691 | case R_PPC64_GOT_TLSGD16: |
7692 | case R_PPC64_GOT_TLSGD16_LO: | |
7693 | case R_PPC64_GOT_TLSGD16_HI: | |
7694 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 7695 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
7696 | goto dogot; |
7697 | ||
7698 | case R_PPC64_GOT_TLSLD16: | |
7699 | case R_PPC64_GOT_TLSLD16_LO: | |
7700 | case R_PPC64_GOT_TLSLD16_HI: | |
7701 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7702 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
7703 | goto dogot; |
7704 | ||
7705 | case R_PPC64_GOT_TPREL16_DS: | |
7706 | case R_PPC64_GOT_TPREL16_LO_DS: | |
7707 | case R_PPC64_GOT_TPREL16_HI: | |
7708 | case R_PPC64_GOT_TPREL16_HA: | |
7709 | tls_type = TLS_TLS | TLS_TPREL; | |
7710 | goto dogot; | |
7711 | ||
7712 | case R_PPC64_GOT_DTPREL16_DS: | |
7713 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
7714 | case R_PPC64_GOT_DTPREL16_HI: | |
7715 | case R_PPC64_GOT_DTPREL16_HA: | |
7716 | tls_type = TLS_TLS | TLS_DTPREL; | |
7717 | goto dogot; | |
7718 | ||
65f38f15 AM |
7719 | case R_PPC64_GOT16: |
7720 | case R_PPC64_GOT16_LO: | |
7721 | case R_PPC64_GOT16_HI: | |
7722 | case R_PPC64_GOT16_HA: | |
7723 | case R_PPC64_GOT16_DS: | |
7724 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 7725 | dogot: |
5bd4f169 AM |
7726 | { |
7727 | /* Relocation is to the entry for this symbol in the global | |
7728 | offset table. */ | |
d881513a | 7729 | bfd_vma *offp; |
5bd4f169 | 7730 | bfd_vma off; |
d881513a | 7731 | unsigned long indx = 0; |
65f38f15 | 7732 | |
4ce794b7 | 7733 | if (htab->got == NULL) |
65f38f15 | 7734 | abort (); |
5bd4f169 | 7735 | |
d881513a AM |
7736 | if (tls_type == (TLS_TLS | TLS_LD) |
7737 | && (h == NULL | |
7738 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
7739 | offp = &htab->tlsld_got.offset; | |
411e1bfb | 7740 | else |
5bd4f169 | 7741 | { |
d881513a | 7742 | struct got_entry *ent; |
5bd4f169 | 7743 | |
d881513a AM |
7744 | if (h != NULL) |
7745 | { | |
7746 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
f4656909 | 7747 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
d881513a | 7748 | || (info->shared |
586119b3 | 7749 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
d881513a AM |
7750 | /* This is actually a static link, or it is a |
7751 | -Bsymbolic link and the symbol is defined | |
7752 | locally, or the symbol was forced to be local | |
7753 | because of a version file. */ | |
7754 | ; | |
7755 | else | |
7756 | { | |
7757 | indx = h->dynindx; | |
7758 | unresolved_reloc = FALSE; | |
7759 | } | |
7760 | ent = h->got.glist; | |
7761 | } | |
411e1bfb | 7762 | else |
5bd4f169 | 7763 | { |
d881513a AM |
7764 | if (local_got_ents == NULL) |
7765 | abort (); | |
7766 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 7767 | } |
d881513a AM |
7768 | |
7769 | for (; ent != NULL; ent = ent->next) | |
7770 | if (ent->addend == rel->r_addend | |
7771 | && ent->tls_type == tls_type) | |
7772 | break; | |
7773 | if (ent == NULL) | |
7774 | abort (); | |
7775 | offp = &ent->got.offset; | |
5bd4f169 | 7776 | } |
411e1bfb AM |
7777 | |
7778 | /* The offset must always be a multiple of 8. We use the | |
7779 | least significant bit to record whether we have already | |
7780 | processed this entry. */ | |
d881513a | 7781 | off = *offp; |
411e1bfb AM |
7782 | if ((off & 1) != 0) |
7783 | off &= ~1; | |
5bd4f169 AM |
7784 | else |
7785 | { | |
411e1bfb AM |
7786 | /* Generate relocs for the dynamic linker, except in |
7787 | the case of TLSLD where we'll use one entry per | |
7788 | module. */ | |
d881513a | 7789 | *offp = off | 1; |
4e795f50 AM |
7790 | if ((info->shared || indx != 0) |
7791 | && (h == NULL | |
7792 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7793 | || h->root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 7794 | { |
4ce794b7 AM |
7795 | outrel.r_offset = (htab->got->output_section->vma |
7796 | + htab->got->output_offset | |
411e1bfb | 7797 | + off); |
81407a69 | 7798 | outrel.r_addend = rel->r_addend; |
d881513a | 7799 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 7800 | { |
411e1bfb | 7801 | outrel.r_addend = 0; |
e515b051 | 7802 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
7803 | if (tls_type == (TLS_TLS | TLS_GD)) |
7804 | { | |
4ce794b7 AM |
7805 | loc = htab->relgot->contents; |
7806 | loc += (htab->relgot->reloc_count++ | |
d881513a AM |
7807 | * sizeof (Elf64_External_Rela)); |
7808 | bfd_elf64_swap_reloca_out (output_bfd, | |
7809 | &outrel, loc); | |
e515b051 | 7810 | outrel.r_offset += 8; |
81407a69 | 7811 | outrel.r_addend = rel->r_addend; |
d881513a AM |
7812 | outrel.r_info |
7813 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 7814 | } |
411e1bfb | 7815 | } |
951fd09b | 7816 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 7817 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 7818 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
7819 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
7820 | else if (indx == 0) | |
81407a69 AM |
7821 | { |
7822 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
7823 | ||
7824 | /* Write the .got section contents for the sake | |
7825 | of prelink. */ | |
4ce794b7 | 7826 | loc = htab->got->contents + off; |
23fbd6fa JJ |
7827 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
7828 | loc); | |
81407a69 | 7829 | } |
411e1bfb AM |
7830 | else |
7831 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
81407a69 AM |
7832 | |
7833 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
e515b051 AM |
7834 | { |
7835 | outrel.r_addend += relocation; | |
7836 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
7837 | outrel.r_addend -= htab->tls_sec->vma; | |
7838 | } | |
4ce794b7 AM |
7839 | loc = htab->relgot->contents; |
7840 | loc += (htab->relgot->reloc_count++ | |
411e1bfb AM |
7841 | * sizeof (Elf64_External_Rela)); |
7842 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
7843 | } | |
7844 | ||
ad8e1ba5 | 7845 | /* Init the .got section contents here if we're not |
81407a69 | 7846 | emitting a reloc. */ |
d881513a | 7847 | else |
411e1bfb | 7848 | { |
d881513a | 7849 | relocation += rel->r_addend; |
7b609f53 AM |
7850 | if (tls_type == (TLS_TLS | TLS_LD)) |
7851 | relocation = 1; | |
7852 | else if (tls_type != 0) | |
411e1bfb AM |
7853 | { |
7854 | relocation -= htab->tls_sec->vma + DTP_OFFSET; | |
7b609f53 | 7855 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 7856 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 7857 | |
7b609f53 AM |
7858 | if (tls_type == (TLS_TLS | TLS_GD)) |
7859 | { | |
7860 | bfd_put_64 (output_bfd, relocation, | |
4ce794b7 | 7861 | htab->got->contents + off + 8); |
7b609f53 AM |
7862 | relocation = 1; |
7863 | } | |
411e1bfb | 7864 | } |
7b609f53 | 7865 | |
411e1bfb | 7866 | bfd_put_64 (output_bfd, relocation, |
4ce794b7 | 7867 | htab->got->contents + off); |
5bd4f169 AM |
7868 | } |
7869 | } | |
7870 | ||
65f38f15 AM |
7871 | if (off >= (bfd_vma) -2) |
7872 | abort (); | |
7873 | ||
4ce794b7 | 7874 | relocation = htab->got->output_offset + off; |
65f38f15 | 7875 | |
5bd4f169 | 7876 | /* TOC base (r2) is TOC start plus 0x8000. */ |
411e1bfb | 7877 | addend = - TOC_BASE_OFF; |
5bd4f169 | 7878 | } |
65f38f15 AM |
7879 | break; |
7880 | ||
7881 | case R_PPC64_PLT16_HA: | |
7882 | case R_PPC64_PLT16_HI: | |
7883 | case R_PPC64_PLT16_LO: | |
7884 | case R_PPC64_PLT32: | |
7885 | case R_PPC64_PLT64: | |
7886 | /* Relocation is to the entry for this symbol in the | |
7887 | procedure linkage table. */ | |
7888 | ||
7889 | /* Resolve a PLT reloc against a local symbol directly, | |
7890 | without using the procedure linkage table. */ | |
7891 | if (h == NULL) | |
7892 | break; | |
7893 | ||
411e1bfb AM |
7894 | /* It's possible that we didn't make a PLT entry for this |
7895 | symbol. This happens when statically linking PIC code, | |
7896 | or when using -Bsymbolic. Go find a match if there is a | |
7897 | PLT entry. */ | |
4ce794b7 | 7898 | if (htab->plt != NULL) |
65f38f15 | 7899 | { |
411e1bfb AM |
7900 | struct plt_entry *ent; |
7901 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
7902 | if (ent->addend == rel->r_addend | |
7903 | && ent->plt.offset != (bfd_vma) -1) | |
7904 | { | |
4ce794b7 AM |
7905 | relocation = (htab->plt->output_section->vma |
7906 | + htab->plt->output_offset | |
411e1bfb AM |
7907 | + ent->plt.offset); |
7908 | unresolved_reloc = FALSE; | |
7909 | } | |
65f38f15 | 7910 | } |
65f38f15 | 7911 | break; |
5bd4f169 | 7912 | |
0b13192e AM |
7913 | case R_PPC64_TOC: |
7914 | /* Relocation value is TOC base. */ | |
7915 | relocation = TOCstart; | |
7916 | if (r_symndx == 0) | |
7917 | relocation += htab->stub_group[input_section->id].toc_off; | |
7918 | else if (sec != NULL && !unresolved_reloc) | |
7919 | relocation += htab->stub_group[sec->id].toc_off; | |
7920 | else | |
7921 | unresolved_reloc = TRUE; | |
7922 | goto dodyn2; | |
7923 | ||
5bd4f169 AM |
7924 | /* TOC16 relocs. We want the offset relative to the TOC base, |
7925 | which is the address of the start of the TOC plus 0x8000. | |
7926 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
7927 | in this order. */ | |
65f38f15 AM |
7928 | case R_PPC64_TOC16: |
7929 | case R_PPC64_TOC16_LO: | |
7930 | case R_PPC64_TOC16_HI: | |
7931 | case R_PPC64_TOC16_DS: | |
7932 | case R_PPC64_TOC16_LO_DS: | |
7933 | case R_PPC64_TOC16_HA: | |
ad8e1ba5 | 7934 | addend -= TOCstart + htab->stub_group[input_section->id].toc_off; |
5bd4f169 AM |
7935 | break; |
7936 | ||
7937 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
7938 | case R_PPC64_SECTOFF: |
7939 | case R_PPC64_SECTOFF_LO: | |
7940 | case R_PPC64_SECTOFF_HI: | |
7941 | case R_PPC64_SECTOFF_DS: | |
7942 | case R_PPC64_SECTOFF_LO_DS: | |
7943 | case R_PPC64_SECTOFF_HA: | |
4ce794b7 | 7944 | if (sec != NULL) |
65f38f15 | 7945 | addend -= sec->output_section->vma; |
5bd4f169 AM |
7946 | break; |
7947 | ||
721956f4 AM |
7948 | case R_PPC64_REL14: |
7949 | case R_PPC64_REL14_BRNTAKEN: | |
7950 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
7951 | case R_PPC64_REL24: |
7952 | break; | |
7953 | ||
411e1bfb AM |
7954 | case R_PPC64_TPREL16: |
7955 | case R_PPC64_TPREL16_LO: | |
7956 | case R_PPC64_TPREL16_HI: | |
7957 | case R_PPC64_TPREL16_HA: | |
7958 | case R_PPC64_TPREL16_DS: | |
7959 | case R_PPC64_TPREL16_LO_DS: | |
7960 | case R_PPC64_TPREL16_HIGHER: | |
7961 | case R_PPC64_TPREL16_HIGHERA: | |
7962 | case R_PPC64_TPREL16_HIGHEST: | |
7963 | case R_PPC64_TPREL16_HIGHESTA: | |
7964 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
7965 | if (info->shared) | |
7966 | /* The TPREL16 relocs shouldn't really be used in shared | |
7967 | libs as they will result in DT_TEXTREL being set, but | |
7968 | support them anyway. */ | |
7969 | goto dodyn; | |
7970 | break; | |
7971 | ||
7972 | case R_PPC64_DTPREL16: | |
7973 | case R_PPC64_DTPREL16_LO: | |
7974 | case R_PPC64_DTPREL16_HI: | |
7975 | case R_PPC64_DTPREL16_HA: | |
7976 | case R_PPC64_DTPREL16_DS: | |
7977 | case R_PPC64_DTPREL16_LO_DS: | |
7978 | case R_PPC64_DTPREL16_HIGHER: | |
7979 | case R_PPC64_DTPREL16_HIGHERA: | |
7980 | case R_PPC64_DTPREL16_HIGHEST: | |
7981 | case R_PPC64_DTPREL16_HIGHESTA: | |
7982 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
7983 | break; | |
7984 | ||
e515b051 AM |
7985 | case R_PPC64_DTPMOD64: |
7986 | relocation = 1; | |
7987 | addend = 0; | |
7988 | goto dodyn; | |
7989 | ||
411e1bfb AM |
7990 | case R_PPC64_TPREL64: |
7991 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
7992 | goto dodyn; | |
7993 | ||
7994 | case R_PPC64_DTPREL64: | |
7995 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
7996 | /* Fall thru */ | |
7997 | ||
65f38f15 AM |
7998 | /* Relocations that may need to be propagated if this is a |
7999 | dynamic object. */ | |
04c9666a | 8000 | case R_PPC64_REL30: |
65f38f15 AM |
8001 | case R_PPC64_REL32: |
8002 | case R_PPC64_REL64: | |
8003 | case R_PPC64_ADDR14: | |
8004 | case R_PPC64_ADDR14_BRNTAKEN: | |
8005 | case R_PPC64_ADDR14_BRTAKEN: | |
8006 | case R_PPC64_ADDR16: | |
8007 | case R_PPC64_ADDR16_DS: | |
8008 | case R_PPC64_ADDR16_HA: | |
8009 | case R_PPC64_ADDR16_HI: | |
8010 | case R_PPC64_ADDR16_HIGHER: | |
8011 | case R_PPC64_ADDR16_HIGHERA: | |
8012 | case R_PPC64_ADDR16_HIGHEST: | |
8013 | case R_PPC64_ADDR16_HIGHESTA: | |
8014 | case R_PPC64_ADDR16_LO: | |
8015 | case R_PPC64_ADDR16_LO_DS: | |
8016 | case R_PPC64_ADDR24: | |
65f38f15 AM |
8017 | case R_PPC64_ADDR32: |
8018 | case R_PPC64_ADDR64: | |
8019 | case R_PPC64_UADDR16: | |
8020 | case R_PPC64_UADDR32: | |
8021 | case R_PPC64_UADDR64: | |
ec338859 AM |
8022 | /* r_symndx will be zero only for relocs against symbols |
8023 | from removed linkonce sections, or sections discarded by | |
8024 | a linker script. */ | |
411e1bfb | 8025 | dodyn: |
5d1634d7 AM |
8026 | if (r_symndx == 0) |
8027 | break; | |
8028 | /* Fall thru. */ | |
8029 | ||
0b13192e | 8030 | dodyn2: |
5d1634d7 | 8031 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
8032 | break; |
8033 | ||
41bd81ab AM |
8034 | if (NO_OPD_RELOCS && is_opd) |
8035 | break; | |
8036 | ||
65f38f15 | 8037 | if ((info->shared |
4e795f50 AM |
8038 | && (h == NULL |
8039 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
8040 | || h->root.type != bfd_link_hash_undefweak) | |
411e1bfb | 8041 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 | 8042 | || (h != NULL |
09695f56 | 8043 | && !SYMBOL_CALLS_LOCAL (info, h)))) |
f4656909 AM |
8044 | || (ELIMINATE_COPY_RELOCS |
8045 | && !info->shared | |
65f38f15 AM |
8046 | && h != NULL |
8047 | && h->dynindx != -1 | |
8048 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
8049 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
8050 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
65f38f15 AM |
8051 | { |
8052 | Elf_Internal_Rela outrel; | |
b34976b6 | 8053 | bfd_boolean skip, relocate; |
65f38f15 | 8054 | asection *sreloc; |
947216bf | 8055 | bfd_byte *loc; |
1cf1f670 | 8056 | bfd_vma out_off; |
65f38f15 AM |
8057 | |
8058 | /* When generating a dynamic object, these relocations | |
8059 | are copied into the output file to be resolved at run | |
8060 | time. */ | |
8061 | ||
b34976b6 AM |
8062 | skip = FALSE; |
8063 | relocate = FALSE; | |
65f38f15 | 8064 | |
1cf1f670 AM |
8065 | out_off = _bfd_elf_section_offset (output_bfd, info, |
8066 | input_section, rel->r_offset); | |
8067 | if (out_off == (bfd_vma) -1) | |
b34976b6 | 8068 | skip = TRUE; |
1cf1f670 | 8069 | else if (out_off == (bfd_vma) -2) |
b34976b6 | 8070 | skip = TRUE, relocate = TRUE; |
1cf1f670 AM |
8071 | out_off += (input_section->output_section->vma |
8072 | + input_section->output_offset); | |
8073 | outrel.r_offset = out_off; | |
411e1bfb | 8074 | outrel.r_addend = rel->r_addend; |
65f38f15 | 8075 | |
1cf1f670 AM |
8076 | /* Optimize unaligned reloc use. */ |
8077 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
8078 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
8079 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
8080 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
8081 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
8082 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
8083 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
8084 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
8085 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
8086 | ||
65f38f15 | 8087 | if (skip) |
0bb2d96a | 8088 | memset (&outrel, 0, sizeof outrel); |
65f38f15 | 8089 | else if (h != NULL |
586119b3 | 8090 | && !SYMBOL_REFERENCES_LOCAL (info, h) |
0b13192e AM |
8091 | && !is_opd |
8092 | && r_type != R_PPC64_TOC) | |
0bb2d96a | 8093 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); |
65f38f15 AM |
8094 | else |
8095 | { | |
41bd81ab AM |
8096 | /* This symbol is local, or marked to become local, |
8097 | or this is an opd section reloc which must point | |
8098 | at a local function. */ | |
65f38f15 | 8099 | outrel.r_addend += relocation; |
e86ce104 | 8100 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 8101 | { |
3fad3c7c | 8102 | if (is_opd && h != NULL) |
afbe61cf AM |
8103 | { |
8104 | /* Lie about opd entries. This case occurs | |
8105 | when building shared libraries and we | |
8106 | reference a function in another shared | |
3fad3c7c AM |
8107 | lib. The same thing happens for a weak |
8108 | definition in an application that's | |
8109 | overridden by a strong definition in a | |
8110 | shared lib. (I believe this is a generic | |
8111 | bug in binutils handling of weak syms.) | |
8112 | In these cases we won't use the opd | |
1e2f5b6e | 8113 | entry in this lib. */ |
b34976b6 | 8114 | unresolved_reloc = FALSE; |
afbe61cf | 8115 | } |
65f38f15 | 8116 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
81407a69 AM |
8117 | |
8118 | /* We need to relocate .opd contents for ld.so. | |
8119 | Prelink also wants simple and consistent rules | |
8120 | for relocs. This make all RELATIVE relocs have | |
8121 | *r_offset equal to r_addend. */ | |
8122 | relocate = TRUE; | |
65f38f15 AM |
8123 | } |
8124 | else | |
8125 | { | |
8126 | long indx = 0; | |
8127 | ||
41bd81ab | 8128 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
8129 | ; |
8130 | else if (sec == NULL || sec->owner == NULL) | |
8131 | { | |
8132 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8133 | return FALSE; |
65f38f15 AM |
8134 | } |
8135 | else | |
8136 | { | |
8137 | asection *osec; | |
8138 | ||
8139 | osec = sec->output_section; | |
8140 | indx = elf_section_data (osec)->dynindx; | |
8141 | ||
8142 | /* We are turning this relocation into one | |
8143 | against a section symbol, so subtract out | |
8144 | the output section's address but not the | |
8145 | offset of the input section in the output | |
8146 | section. */ | |
8147 | outrel.r_addend -= osec->vma; | |
8148 | } | |
8149 | ||
8150 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
8151 | } | |
8152 | } | |
8153 | ||
8154 | sreloc = elf_section_data (input_section)->sreloc; | |
8155 | if (sreloc == NULL) | |
8156 | abort (); | |
8157 | ||
947216bf AM |
8158 | loc = sreloc->contents; |
8159 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
8160 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
8161 | ||
8162 | /* If this reloc is against an external symbol, it will | |
8163 | be computed at runtime, so there's no need to do | |
81407a69 AM |
8164 | anything now. However, for the sake of prelink ensure |
8165 | that the section contents are a known value. */ | |
65f38f15 | 8166 | if (! relocate) |
81407a69 AM |
8167 | { |
8168 | unresolved_reloc = FALSE; | |
8169 | /* The value chosen here is quite arbitrary as ld.so | |
8170 | ignores section contents except for the special | |
8171 | case of .opd where the contents might be accessed | |
8172 | before relocation. Choose zero, as that won't | |
8173 | cause reloc overflow. */ | |
8174 | relocation = 0; | |
8175 | addend = 0; | |
8176 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
8177 | to improve backward compatibility with older | |
8178 | versions of ld. */ | |
8179 | if (r_type == R_PPC64_ADDR64) | |
8180 | addend = outrel.r_addend; | |
8181 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
4ce794b7 | 8182 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
000732f7 AM |
8183 | addend = (input_section->output_section->vma |
8184 | + input_section->output_offset | |
8185 | + rel->r_offset); | |
81407a69 | 8186 | } |
65f38f15 | 8187 | } |
5bd4f169 AM |
8188 | break; |
8189 | ||
65f38f15 AM |
8190 | case R_PPC64_COPY: |
8191 | case R_PPC64_GLOB_DAT: | |
8192 | case R_PPC64_JMP_SLOT: | |
8193 | case R_PPC64_RELATIVE: | |
8194 | /* We shouldn't ever see these dynamic relocs in relocatable | |
8195 | files. */ | |
ae9a127f | 8196 | /* Fall through. */ |
65f38f15 AM |
8197 | |
8198 | case R_PPC64_PLTGOT16: | |
8199 | case R_PPC64_PLTGOT16_DS: | |
8200 | case R_PPC64_PLTGOT16_HA: | |
8201 | case R_PPC64_PLTGOT16_HI: | |
8202 | case R_PPC64_PLTGOT16_LO: | |
8203 | case R_PPC64_PLTGOT16_LO_DS: | |
8204 | case R_PPC64_PLTREL32: | |
8205 | case R_PPC64_PLTREL64: | |
8206 | /* These ones haven't been implemented yet. */ | |
8207 | ||
8208 | (*_bfd_error_handler) | |
7b609f53 | 8209 | (_("%s: relocation %s is not supported for symbol %s."), |
65f38f15 | 8210 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8211 | ppc64_elf_howto_table[r_type]->name, sym_name); |
5bd4f169 AM |
8212 | |
8213 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8214 | ret = FALSE; |
5bd4f169 | 8215 | continue; |
65f38f15 | 8216 | } |
5bd4f169 | 8217 | |
65f38f15 AM |
8218 | /* Do any further special processing. */ |
8219 | switch (r_type) | |
8220 | { | |
8221 | default: | |
8222 | break; | |
8223 | ||
8224 | case R_PPC64_ADDR16_HA: | |
8225 | case R_PPC64_ADDR16_HIGHERA: | |
8226 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
8227 | case R_PPC64_GOT16_HA: |
8228 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
8229 | case R_PPC64_PLT16_HA: |
8230 | case R_PPC64_TOC16_HA: | |
8231 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
8232 | case R_PPC64_TPREL16_HA: |
8233 | case R_PPC64_DTPREL16_HA: | |
8234 | case R_PPC64_GOT_TLSGD16_HA: | |
8235 | case R_PPC64_GOT_TLSLD16_HA: | |
8236 | case R_PPC64_GOT_TPREL16_HA: | |
8237 | case R_PPC64_GOT_DTPREL16_HA: | |
8238 | case R_PPC64_TPREL16_HIGHER: | |
8239 | case R_PPC64_TPREL16_HIGHERA: | |
8240 | case R_PPC64_TPREL16_HIGHEST: | |
8241 | case R_PPC64_TPREL16_HIGHESTA: | |
8242 | case R_PPC64_DTPREL16_HIGHER: | |
8243 | case R_PPC64_DTPREL16_HIGHERA: | |
8244 | case R_PPC64_DTPREL16_HIGHEST: | |
8245 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
8246 | /* It's just possible that this symbol is a weak symbol |
8247 | that's not actually defined anywhere. In that case, | |
8248 | 'sec' would be NULL, and we should leave the symbol | |
8249 | alone (it will be set to zero elsewhere in the link). */ | |
8250 | if (sec != NULL) | |
e515b051 AM |
8251 | /* Add 0x10000 if sign bit in 0:15 is set. |
8252 | Bits 0:15 are not used. */ | |
8253 | addend += 0x8000; | |
65f38f15 AM |
8254 | break; |
8255 | ||
8256 | case R_PPC64_ADDR16_DS: | |
8257 | case R_PPC64_ADDR16_LO_DS: | |
8258 | case R_PPC64_GOT16_DS: | |
8259 | case R_PPC64_GOT16_LO_DS: | |
8260 | case R_PPC64_PLT16_LO_DS: | |
8261 | case R_PPC64_SECTOFF_DS: | |
8262 | case R_PPC64_SECTOFF_LO_DS: | |
8263 | case R_PPC64_TOC16_DS: | |
8264 | case R_PPC64_TOC16_LO_DS: | |
8265 | case R_PPC64_PLTGOT16_DS: | |
8266 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
8267 | case R_PPC64_GOT_TPREL16_DS: |
8268 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8269 | case R_PPC64_GOT_DTPREL16_DS: | |
8270 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8271 | case R_PPC64_TPREL16_DS: | |
8272 | case R_PPC64_TPREL16_LO_DS: | |
8273 | case R_PPC64_DTPREL16_DS: | |
8274 | case R_PPC64_DTPREL16_LO_DS: | |
adadcc0c AM |
8275 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
8276 | mask = 3; | |
8277 | /* If this reloc is against an lq insn, then the value must be | |
8278 | a multiple of 16. This is somewhat of a hack, but the | |
8279 | "correct" way to do this by defining _DQ forms of all the | |
8280 | _DS relocs bloats all reloc switches in this file. It | |
8281 | doesn't seem to make much sense to use any of these relocs | |
8282 | in data, so testing the insn should be safe. */ | |
8283 | if ((insn & (0x3f << 26)) == (56 << 26)) | |
8284 | mask = 15; | |
8285 | if (((relocation + addend) & mask) != 0) | |
65f38f15 AM |
8286 | { |
8287 | (*_bfd_error_handler) | |
adadcc0c | 8288 | (_("%s: error: relocation %s not a multiple of %d"), |
65f38f15 | 8289 | bfd_archive_filename (input_bfd), |
4ce794b7 | 8290 | ppc64_elf_howto_table[r_type]->name, |
adadcc0c | 8291 | mask + 1); |
65f38f15 | 8292 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 8293 | ret = FALSE; |
65f38f15 AM |
8294 | continue; |
8295 | } | |
8296 | break; | |
721956f4 AM |
8297 | |
8298 | case R_PPC64_REL14: | |
8299 | case R_PPC64_REL14_BRNTAKEN: | |
8300 | case R_PPC64_REL14_BRTAKEN: | |
8301 | max_br_offset = 1 << 15; | |
8302 | goto branch_check; | |
8303 | ||
8304 | case R_PPC64_REL24: | |
8305 | max_br_offset = 1 << 25; | |
8306 | ||
8307 | branch_check: | |
ad8e1ba5 AM |
8308 | /* If the branch is out of reach or the TOC register needs |
8309 | adjusting, then redirect the call to the local stub for | |
8310 | this function. */ | |
411e1bfb | 8311 | from = (rel->r_offset |
721956f4 AM |
8312 | + input_section->output_offset |
8313 | + input_section->output_section->vma); | |
ad8e1ba5 AM |
8314 | if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset |
8315 | || (sec != NULL | |
8316 | && sec->output_section != NULL | |
8317 | && (htab->stub_group[sec->id].toc_off | |
8318 | != htab->stub_group[input_section->id].toc_off))) | |
721956f4 AM |
8319 | && (stub_entry = ppc_get_stub_entry (input_section, sec, h, |
8320 | rel, htab)) != NULL) | |
8321 | { | |
8322 | /* Munge up the value and addend so that we call the stub | |
8323 | rather than the procedure directly. */ | |
8324 | relocation = (stub_entry->stub_offset | |
8325 | + stub_entry->stub_sec->output_offset | |
8326 | + stub_entry->stub_sec->output_section->vma); | |
8327 | addend = 0; | |
8328 | } | |
8329 | break; | |
5bd4f169 AM |
8330 | } |
8331 | ||
239e1f3a AM |
8332 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
8333 | because such sections are not SEC_ALLOC and thus ld.so will | |
8334 | not process them. */ | |
65f38f15 | 8335 | if (unresolved_reloc |
239e1f3a | 8336 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
65f38f15 | 8337 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
9c07fe7c AM |
8338 | { |
8339 | (*_bfd_error_handler) | |
7b609f53 | 8340 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
9c07fe7c AM |
8341 | bfd_archive_filename (input_bfd), |
8342 | bfd_get_section_name (input_bfd, input_section), | |
8343 | (long) rel->r_offset, | |
7b609f53 | 8344 | ppc64_elf_howto_table[(int) r_type]->name, |
9c07fe7c | 8345 | h->root.root.string); |
b34976b6 | 8346 | ret = FALSE; |
9c07fe7c | 8347 | } |
5bd4f169 | 8348 | |
65f38f15 | 8349 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
8350 | input_bfd, |
8351 | input_section, | |
8352 | contents, | |
411e1bfb | 8353 | rel->r_offset, |
5bd4f169 AM |
8354 | relocation, |
8355 | addend); | |
8356 | ||
ef60b7ff | 8357 | if (r != bfd_reloc_ok) |
5bd4f169 | 8358 | { |
cd27b276 AM |
8359 | if (sym_name == NULL) |
8360 | sym_name = "(null)"; | |
8361 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 8362 | { |
cd27b276 AM |
8363 | if (warned) |
8364 | continue; | |
8365 | if (h != NULL | |
8366 | && h->root.type == bfd_link_hash_undefweak | |
4ce794b7 | 8367 | && ppc64_elf_howto_table[r_type]->pc_relative) |
5bd4f169 AM |
8368 | { |
8369 | /* Assume this is a call protected by other code that | |
8370 | detects the symbol is undefined. If this is the case, | |
8371 | we can safely ignore the overflow. If not, the | |
8372 | program is hosed anyway, and a little warning isn't | |
8373 | going to help. */ | |
8374 | ||
8375 | continue; | |
8376 | } | |
8377 | ||
ef60b7ff | 8378 | if (!((*info->callbacks->reloc_overflow) |
4ce794b7 | 8379 | (info, sym_name, ppc64_elf_howto_table[r_type]->name, |
411e1bfb | 8380 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 8381 | return FALSE; |
ef60b7ff AM |
8382 | } |
8383 | else | |
8384 | { | |
8385 | (*_bfd_error_handler) | |
7b609f53 | 8386 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
ef60b7ff AM |
8387 | bfd_archive_filename (input_bfd), |
8388 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 | 8389 | (long) rel->r_offset, |
4ce794b7 | 8390 | ppc64_elf_howto_table[r_type]->name, |
7b609f53 AM |
8391 | sym_name, |
8392 | (int) r); | |
b34976b6 | 8393 | ret = FALSE; |
ef60b7ff | 8394 | } |
5bd4f169 | 8395 | } |
5bd4f169 AM |
8396 | } |
8397 | ||
5bd4f169 AM |
8398 | return ret; |
8399 | } | |
8400 | ||
8401 | /* Finish up dynamic symbol handling. We set the contents of various | |
8402 | dynamic sections here. */ | |
8403 | ||
b34976b6 | 8404 | static bfd_boolean |
4ce794b7 AM |
8405 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
8406 | struct bfd_link_info *info, | |
8407 | struct elf_link_hash_entry *h, | |
8408 | Elf_Internal_Sym *sym) | |
5bd4f169 | 8409 | { |
65f38f15 | 8410 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
8411 | bfd *dynobj; |
8412 | ||
65f38f15 AM |
8413 | htab = ppc_hash_table (info); |
8414 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 8415 | |
411e1bfb | 8416 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) |
5bd4f169 | 8417 | { |
411e1bfb | 8418 | struct plt_entry *ent; |
65f38f15 | 8419 | Elf_Internal_Rela rela; |
947216bf | 8420 | bfd_byte *loc; |
5bd4f169 | 8421 | |
411e1bfb AM |
8422 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
8423 | if (ent->plt.offset != (bfd_vma) -1) | |
8424 | { | |
8425 | /* This symbol has an entry in the procedure linkage | |
8426 | table. Set it up. */ | |
5bd4f169 | 8427 | |
4ce794b7 AM |
8428 | if (htab->plt == NULL |
8429 | || htab->relplt == NULL | |
8430 | || htab->glink == NULL) | |
411e1bfb | 8431 | abort (); |
5bd4f169 | 8432 | |
411e1bfb AM |
8433 | /* Create a JMP_SLOT reloc to inform the dynamic linker to |
8434 | fill in the PLT entry. */ | |
4ce794b7 AM |
8435 | rela.r_offset = (htab->plt->output_section->vma |
8436 | + htab->plt->output_offset | |
411e1bfb AM |
8437 | + ent->plt.offset); |
8438 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
8439 | rela.r_addend = ent->addend; | |
5bd4f169 | 8440 | |
4ce794b7 | 8441 | loc = htab->relplt->contents; |
411e1bfb AM |
8442 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE |
8443 | * sizeof (Elf64_External_Rela)); | |
8444 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
8445 | } | |
5bd4f169 AM |
8446 | } |
8447 | ||
8448 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
8449 | { | |
5bd4f169 | 8450 | Elf_Internal_Rela rela; |
947216bf | 8451 | bfd_byte *loc; |
5bd4f169 | 8452 | |
65f38f15 | 8453 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 8454 | |
65f38f15 AM |
8455 | if (h->dynindx == -1 |
8456 | || (h->root.type != bfd_link_hash_defined | |
8457 | && h->root.type != bfd_link_hash_defweak) | |
4ce794b7 | 8458 | || htab->relbss == NULL) |
65f38f15 | 8459 | abort (); |
5bd4f169 AM |
8460 | |
8461 | rela.r_offset = (h->root.u.def.value | |
8462 | + h->root.u.def.section->output_section->vma | |
8463 | + h->root.u.def.section->output_offset); | |
8464 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
8465 | rela.r_addend = 0; | |
4ce794b7 AM |
8466 | loc = htab->relbss->contents; |
8467 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 8468 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
8469 | } |
8470 | ||
5bd4f169 AM |
8471 | /* Mark some specially defined symbols as absolute. */ |
8472 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
8473 | sym->st_shndx = SHN_ABS; | |
8474 | ||
b34976b6 | 8475 | return TRUE; |
5bd4f169 AM |
8476 | } |
8477 | ||
65f38f15 AM |
8478 | /* Used to decide how to sort relocs in an optimal manner for the |
8479 | dynamic linker, before writing them out. */ | |
8480 | ||
8481 | static enum elf_reloc_type_class | |
4ce794b7 | 8482 | ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
65f38f15 | 8483 | { |
04c9666a | 8484 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 8485 | |
4ce794b7 | 8486 | r_type = ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 8487 | switch (r_type) |
65f38f15 AM |
8488 | { |
8489 | case R_PPC64_RELATIVE: | |
8490 | return reloc_class_relative; | |
8491 | case R_PPC64_JMP_SLOT: | |
8492 | return reloc_class_plt; | |
8493 | case R_PPC64_COPY: | |
8494 | return reloc_class_copy; | |
8495 | default: | |
8496 | return reloc_class_normal; | |
8497 | } | |
8498 | } | |
8499 | ||
5bd4f169 AM |
8500 | /* Finish up the dynamic sections. */ |
8501 | ||
b34976b6 | 8502 | static bfd_boolean |
4ce794b7 AM |
8503 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
8504 | struct bfd_link_info *info) | |
5bd4f169 | 8505 | { |
65f38f15 AM |
8506 | struct ppc_link_hash_table *htab; |
8507 | bfd *dynobj; | |
5bd4f169 | 8508 | asection *sdyn; |
5bd4f169 | 8509 | |
65f38f15 AM |
8510 | htab = ppc_hash_table (info); |
8511 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
8512 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
8513 | ||
65f38f15 | 8514 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 8515 | { |
5bd4f169 AM |
8516 | Elf64_External_Dyn *dyncon, *dynconend; |
8517 | ||
4ce794b7 | 8518 | if (sdyn == NULL || htab->got == NULL) |
65f38f15 | 8519 | abort (); |
5bd4f169 AM |
8520 | |
8521 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
8522 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
8523 | for (; dyncon < dynconend; dyncon++) | |
8524 | { | |
8525 | Elf_Internal_Dyn dyn; | |
19397422 | 8526 | asection *s; |
5bd4f169 AM |
8527 | |
8528 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
8529 | ||
8530 | switch (dyn.d_tag) | |
8531 | { | |
65f38f15 AM |
8532 | default: |
8533 | continue; | |
5bd4f169 | 8534 | |
5d1634d7 | 8535 | case DT_PPC64_GLINK: |
4ce794b7 | 8536 | s = htab->glink; |
6348e046 | 8537 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
ad8e1ba5 AM |
8538 | /* We stupidly defined DT_PPC64_GLINK to be the start |
8539 | of glink rather than the first entry point, which is | |
8540 | what ld.so needs, and now have a bigger stub to | |
8541 | support automatic multiple TOCs. */ | |
8542 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32; | |
5d1634d7 AM |
8543 | break; |
8544 | ||
19397422 AM |
8545 | case DT_PPC64_OPD: |
8546 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8547 | if (s == NULL) |
8548 | continue; | |
8549 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
8550 | break; |
8551 | ||
8552 | case DT_PPC64_OPDSZ: | |
8553 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8554 | if (s == NULL) |
8555 | continue; | |
8556 | dyn.d_un.d_val = s->_raw_size; | |
19397422 AM |
8557 | break; |
8558 | ||
65f38f15 | 8559 | case DT_PLTGOT: |
4ce794b7 | 8560 | s = htab->plt; |
6348e046 | 8561 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 AM |
8562 | break; |
8563 | ||
8564 | case DT_JMPREL: | |
4ce794b7 | 8565 | s = htab->relplt; |
6348e046 | 8566 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
65f38f15 | 8567 | break; |
5bd4f169 | 8568 | |
65f38f15 | 8569 | case DT_PLTRELSZ: |
4ce794b7 | 8570 | dyn.d_un.d_val = htab->relplt->_raw_size; |
5d1634d7 AM |
8571 | break; |
8572 | ||
8573 | case DT_RELASZ: | |
8574 | /* Don't count procedure linkage table relocs in the | |
8575 | overall reloc count. */ | |
4ce794b7 | 8576 | s = htab->relplt; |
6348e046 AM |
8577 | if (s == NULL) |
8578 | continue; | |
8579 | dyn.d_un.d_val -= s->_raw_size; | |
8580 | break; | |
8581 | ||
8582 | case DT_RELA: | |
8583 | /* We may not be using the standard ELF linker script. | |
8584 | If .rela.plt is the first .rela section, we adjust | |
8585 | DT_RELA to not include it. */ | |
4ce794b7 | 8586 | s = htab->relplt; |
6348e046 AM |
8587 | if (s == NULL) |
8588 | continue; | |
8589 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
8590 | continue; | |
8591 | dyn.d_un.d_ptr += s->_raw_size; | |
65f38f15 | 8592 | break; |
5bd4f169 | 8593 | } |
5bd4f169 | 8594 | |
65f38f15 | 8595 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 8596 | } |
5bd4f169 AM |
8597 | } |
8598 | ||
4ce794b7 | 8599 | if (htab->got != NULL && htab->got->_raw_size != 0) |
5d1634d7 AM |
8600 | { |
8601 | /* Fill in the first entry in the global offset table. | |
8602 | We use it to hold the link-time TOCbase. */ | |
8603 | bfd_put_64 (output_bfd, | |
60ee0d4a | 8604 | elf_gp (output_bfd) + TOC_BASE_OFF, |
4ce794b7 | 8605 | htab->got->contents); |
5d1634d7 AM |
8606 | |
8607 | /* Set .got entry size. */ | |
4ce794b7 | 8608 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8; |
5d1634d7 AM |
8609 | } |
8610 | ||
4ce794b7 | 8611 | if (htab->plt != NULL && htab->plt->_raw_size != 0) |
5d1634d7 AM |
8612 | { |
8613 | /* Set .plt entry size. */ | |
4ce794b7 | 8614 | elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize |
5d1634d7 AM |
8615 | = PLT_ENTRY_SIZE; |
8616 | } | |
8617 | ||
b34976b6 | 8618 | return TRUE; |
5bd4f169 AM |
8619 | } |
8620 | ||
5bd4f169 | 8621 | #include "elf64-target.h" |