Commit | Line | Data |
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5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
86bbe32f | 2 | Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
4 | based on elf32-ppc.c by Ian Lance Taylor. | |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
5bd4f169 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
5bd4f169 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
5bd4f169 | 17 | |
ae9a127f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
5bd4f169 AM |
21 | |
22 | /* This file is based on the 64-bit PowerPC ELF ABI. It is also based | |
23 | on the file elf32-ppc.c. */ | |
24 | ||
25 | #include "bfd.h" | |
26 | #include "sysdep.h" | |
27 | #include "bfdlink.h" | |
28 | #include "libbfd.h" | |
29 | #include "elf-bfd.h" | |
04c9666a | 30 | #include "elf/ppc64.h" |
5d1634d7 | 31 | #include "elf64-ppc.h" |
5bd4f169 | 32 | |
5bd4f169 AM |
33 | static void ppc_howto_init |
34 | PARAMS ((void)); | |
35 | static reloc_howto_type *ppc64_elf_reloc_type_lookup | |
36 | PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); | |
37 | static void ppc64_elf_info_to_howto | |
947216bf | 38 | PARAMS ((bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst)); |
805fc799 AM |
39 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
40 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
41 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc | |
42 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
43 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc | |
44 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
45 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc | |
46 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
47 | static bfd_reloc_status_type ppc64_elf_toc_reloc | |
48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
49 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc | |
50 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
51 | static bfd_reloc_status_type ppc64_elf_toc64_reloc | |
52 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); | |
53 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc | |
5bd4f169 | 54 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
b34976b6 | 55 | static bfd_boolean ppc64_elf_object_p |
feee612b | 56 | PARAMS ((bfd *)); |
b34976b6 | 57 | static bfd_boolean ppc64_elf_merge_private_bfd_data |
5bd4f169 | 58 | PARAMS ((bfd *, bfd *)); |
f0abc2a1 AM |
59 | static bfd_boolean ppc64_elf_new_section_hook |
60 | PARAMS ((bfd *, asection *)); | |
5bd4f169 AM |
61 | |
62 | ||
5bd4f169 AM |
63 | /* The name of the dynamic interpreter. This is put in the .interp |
64 | section. */ | |
65 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
66 | ||
67 | /* The size in bytes of an entry in the procedure linkage table. */ | |
68 | #define PLT_ENTRY_SIZE 24 | |
69 | ||
70 | /* The initial size of the plt reserved for the dynamic linker. */ | |
5d1634d7 | 71 | #define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE |
5bd4f169 AM |
72 | |
73 | /* TOC base pointers offset from start of TOC. */ | |
411e1bfb AM |
74 | #define TOC_BASE_OFF 0x8000 |
75 | ||
76 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
77 | #define TP_OFFSET 0x7000 | |
78 | #define DTP_OFFSET 0x8000 | |
5bd4f169 | 79 | |
5d1634d7 AM |
80 | /* .plt call stub instructions. */ |
81 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
82 | #define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */ | |
83 | #define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */ | |
84 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */ | |
85 | #define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */ | |
86 | /* ld %r11,xxx+16@l(%r12) */ | |
87 | #define BCTR 0x4e800420 /* bctr */ | |
88 | ||
89 | /* The normal stub is this size. */ | |
90 | #define PLT_CALL_STUB_SIZE (7*4) | |
91 | ||
92 | /* But sometimes the .plt entry crosses a 64k boundary, and we need | |
93 | to adjust the high word with this insn. */ | |
94 | #define ADDIS_R12_R12_1 0x3d8c0001 /* addis %r12,%r12,1 */ | |
5bd4f169 | 95 | |
5d1634d7 AM |
96 | /* The .glink fixup call stub is the same as the .plt call stub, but |
97 | the first instruction restores r2, and the std is omitted. */ | |
98 | #define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */ | |
99 | ||
100 | /* Always allow this much space. */ | |
101 | #define GLINK_CALL_STUB_SIZE (8*4) | |
102 | ||
103 | /* Pad with this. */ | |
104 | #define NOP 0x60000000 | |
105 | ||
721956f4 AM |
106 | /* Some other nops. */ |
107 | #define CROR_151515 0x4def7b82 | |
108 | #define CROR_313131 0x4ffffb82 | |
109 | ||
cedb70c5 | 110 | /* .glink entries for the first 32k functions are two instructions. */ |
5d1634d7 AM |
111 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
112 | #define B_DOT 0x48000000 /* b . */ | |
113 | ||
114 | /* After that, we need two instructions to load the index, followed by | |
115 | a branch. */ | |
116 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
10ed1bba | 117 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
41bd81ab | 118 | |
82bd7b59 AM |
119 | /* Instructions to save and restore floating point regs. */ |
120 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ | |
121 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
122 | #define BLR 0x4e800020 /* blr */ | |
123 | ||
41bd81ab AM |
124 | /* Since .opd is an array of descriptors and each entry will end up |
125 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
126 | propagate .opd relocs; The dynamic linker should be taught to | |
1e2f5b6e | 127 | relocate .opd without reloc entries. */ |
41bd81ab AM |
128 | #ifndef NO_OPD_RELOCS |
129 | #define NO_OPD_RELOCS 0 | |
130 | #endif | |
5bd4f169 | 131 | \f |
f5e87a1d | 132 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
b34976b6 | 133 | |
5bd4f169 | 134 | /* Relocation HOWTO's. */ |
04c9666a | 135 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
5bd4f169 AM |
136 | |
137 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
138 | /* This reloc does nothing. */ | |
139 | HOWTO (R_PPC64_NONE, /* type */ | |
140 | 0, /* rightshift */ | |
411e1bfb AM |
141 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
142 | 32, /* bitsize */ | |
b34976b6 | 143 | FALSE, /* pc_relative */ |
5bd4f169 | 144 | 0, /* bitpos */ |
f5e87a1d | 145 | complain_overflow_dont, /* complain_on_overflow */ |
5bd4f169 AM |
146 | bfd_elf_generic_reloc, /* special_function */ |
147 | "R_PPC64_NONE", /* name */ | |
b34976b6 | 148 | FALSE, /* partial_inplace */ |
d006db6c | 149 | 0, /* src_mask */ |
5bd4f169 | 150 | 0, /* dst_mask */ |
b34976b6 | 151 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
152 | |
153 | /* A standard 32 bit relocation. */ | |
154 | HOWTO (R_PPC64_ADDR32, /* type */ | |
155 | 0, /* rightshift */ | |
156 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
157 | 32, /* bitsize */ | |
b34976b6 | 158 | FALSE, /* pc_relative */ |
5bd4f169 AM |
159 | 0, /* bitpos */ |
160 | complain_overflow_bitfield, /* complain_on_overflow */ | |
161 | bfd_elf_generic_reloc, /* special_function */ | |
162 | "R_PPC64_ADDR32", /* name */ | |
b34976b6 | 163 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
164 | 0, /* src_mask */ |
165 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 166 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
167 | |
168 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
169 | FIXME: we don't check that, we just clear them. */ | |
170 | HOWTO (R_PPC64_ADDR24, /* type */ | |
171 | 0, /* rightshift */ | |
172 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
173 | 26, /* bitsize */ | |
b34976b6 | 174 | FALSE, /* pc_relative */ |
5bd4f169 AM |
175 | 0, /* bitpos */ |
176 | complain_overflow_bitfield, /* complain_on_overflow */ | |
177 | bfd_elf_generic_reloc, /* special_function */ | |
178 | "R_PPC64_ADDR24", /* name */ | |
b34976b6 | 179 | FALSE, /* partial_inplace */ |
d006db6c | 180 | 0, /* src_mask */ |
f5e87a1d | 181 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 182 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
183 | |
184 | /* A standard 16 bit relocation. */ | |
185 | HOWTO (R_PPC64_ADDR16, /* type */ | |
186 | 0, /* rightshift */ | |
187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
188 | 16, /* bitsize */ | |
b34976b6 | 189 | FALSE, /* pc_relative */ |
5bd4f169 AM |
190 | 0, /* bitpos */ |
191 | complain_overflow_bitfield, /* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_PPC64_ADDR16", /* name */ | |
b34976b6 | 194 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
195 | 0, /* src_mask */ |
196 | 0xffff, /* dst_mask */ | |
b34976b6 | 197 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
198 | |
199 | /* A 16 bit relocation without overflow. */ | |
200 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
201 | 0, /* rightshift */ | |
202 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
203 | 16, /* bitsize */ | |
b34976b6 | 204 | FALSE, /* pc_relative */ |
5bd4f169 AM |
205 | 0, /* bitpos */ |
206 | complain_overflow_dont,/* complain_on_overflow */ | |
207 | bfd_elf_generic_reloc, /* special_function */ | |
208 | "R_PPC64_ADDR16_LO", /* name */ | |
b34976b6 | 209 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
210 | 0, /* src_mask */ |
211 | 0xffff, /* dst_mask */ | |
b34976b6 | 212 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
213 | |
214 | /* Bits 16-31 of an address. */ | |
215 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
216 | 16, /* rightshift */ | |
217 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
218 | 16, /* bitsize */ | |
b34976b6 | 219 | FALSE, /* pc_relative */ |
5bd4f169 AM |
220 | 0, /* bitpos */ |
221 | complain_overflow_dont, /* complain_on_overflow */ | |
222 | bfd_elf_generic_reloc, /* special_function */ | |
223 | "R_PPC64_ADDR16_HI", /* name */ | |
b34976b6 | 224 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
225 | 0, /* src_mask */ |
226 | 0xffff, /* dst_mask */ | |
b34976b6 | 227 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
228 | |
229 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
230 | bits, treated as a signed number, is negative. */ | |
231 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
232 | 16, /* rightshift */ | |
233 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
234 | 16, /* bitsize */ | |
b34976b6 | 235 | FALSE, /* pc_relative */ |
5bd4f169 AM |
236 | 0, /* bitpos */ |
237 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 238 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 239 | "R_PPC64_ADDR16_HA", /* name */ |
b34976b6 | 240 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
241 | 0, /* src_mask */ |
242 | 0xffff, /* dst_mask */ | |
b34976b6 | 243 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
244 | |
245 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
246 | FIXME: we don't check that, we just clear them. */ | |
247 | HOWTO (R_PPC64_ADDR14, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 16, /* bitsize */ | |
b34976b6 | 251 | FALSE, /* pc_relative */ |
5bd4f169 AM |
252 | 0, /* bitpos */ |
253 | complain_overflow_bitfield, /* complain_on_overflow */ | |
254 | bfd_elf_generic_reloc, /* special_function */ | |
255 | "R_PPC64_ADDR14", /* name */ | |
b34976b6 | 256 | FALSE, /* partial_inplace */ |
d006db6c | 257 | 0, /* src_mask */ |
f5e87a1d | 258 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 259 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
260 | |
261 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
262 | indicate that the branch is expected to be taken. The lower two | |
263 | bits must be zero. */ | |
264 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
265 | 0, /* rightshift */ | |
266 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
267 | 16, /* bitsize */ | |
b34976b6 | 268 | FALSE, /* pc_relative */ |
5bd4f169 AM |
269 | 0, /* bitpos */ |
270 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 271 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 272 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
b34976b6 | 273 | FALSE, /* partial_inplace */ |
d006db6c | 274 | 0, /* src_mask */ |
f5e87a1d | 275 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 276 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
277 | |
278 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
279 | indicate that the branch is not expected to be taken. The lower | |
280 | two bits must be zero. */ | |
281 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
282 | 0, /* rightshift */ | |
283 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
284 | 16, /* bitsize */ | |
b34976b6 | 285 | FALSE, /* pc_relative */ |
5bd4f169 AM |
286 | 0, /* bitpos */ |
287 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 288 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 289 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
b34976b6 | 290 | FALSE, /* partial_inplace */ |
d006db6c | 291 | 0, /* src_mask */ |
f5e87a1d | 292 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 293 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
294 | |
295 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
296 | HOWTO (R_PPC64_REL24, /* type */ | |
297 | 0, /* rightshift */ | |
298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
299 | 26, /* bitsize */ | |
b34976b6 | 300 | TRUE, /* pc_relative */ |
5bd4f169 AM |
301 | 0, /* bitpos */ |
302 | complain_overflow_signed, /* complain_on_overflow */ | |
303 | bfd_elf_generic_reloc, /* special_function */ | |
304 | "R_PPC64_REL24", /* name */ | |
b34976b6 | 305 | FALSE, /* partial_inplace */ |
d006db6c | 306 | 0, /* src_mask */ |
f5e87a1d | 307 | 0x03fffffc, /* dst_mask */ |
b34976b6 | 308 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
309 | |
310 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
311 | HOWTO (R_PPC64_REL14, /* type */ | |
312 | 0, /* rightshift */ | |
313 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
314 | 16, /* bitsize */ | |
b34976b6 | 315 | TRUE, /* pc_relative */ |
5bd4f169 AM |
316 | 0, /* bitpos */ |
317 | complain_overflow_signed, /* complain_on_overflow */ | |
318 | bfd_elf_generic_reloc, /* special_function */ | |
319 | "R_PPC64_REL14", /* name */ | |
b34976b6 | 320 | FALSE, /* partial_inplace */ |
d006db6c | 321 | 0, /* src_mask */ |
f5e87a1d | 322 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 323 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
324 | |
325 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
326 | the branch is expected to be taken. The lower two bits must be | |
327 | zero. */ | |
328 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
329 | 0, /* rightshift */ | |
330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
331 | 16, /* bitsize */ | |
b34976b6 | 332 | TRUE, /* pc_relative */ |
5bd4f169 AM |
333 | 0, /* bitpos */ |
334 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 335 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 336 | "R_PPC64_REL14_BRTAKEN", /* name */ |
b34976b6 | 337 | FALSE, /* partial_inplace */ |
d006db6c | 338 | 0, /* src_mask */ |
f5e87a1d | 339 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 340 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
341 | |
342 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
343 | the branch is not expected to be taken. The lower two bits must | |
344 | be zero. */ | |
345 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
346 | 0, /* rightshift */ | |
347 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
348 | 16, /* bitsize */ | |
b34976b6 | 349 | TRUE, /* pc_relative */ |
5bd4f169 AM |
350 | 0, /* bitpos */ |
351 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 352 | ppc64_elf_brtaken_reloc, /* special_function */ |
5bd4f169 | 353 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
b34976b6 | 354 | FALSE, /* partial_inplace */ |
d006db6c | 355 | 0, /* src_mask */ |
f5e87a1d | 356 | 0x0000fffc, /* dst_mask */ |
b34976b6 | 357 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
358 | |
359 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
360 | symbol. */ | |
361 | HOWTO (R_PPC64_GOT16, /* type */ | |
362 | 0, /* rightshift */ | |
363 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
364 | 16, /* bitsize */ | |
b34976b6 | 365 | FALSE, /* pc_relative */ |
5bd4f169 AM |
366 | 0, /* bitpos */ |
367 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 368 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 369 | "R_PPC64_GOT16", /* name */ |
b34976b6 | 370 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
371 | 0, /* src_mask */ |
372 | 0xffff, /* dst_mask */ | |
b34976b6 | 373 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
374 | |
375 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
376 | the symbol. */ | |
377 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
378 | 0, /* rightshift */ | |
379 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 16, /* bitsize */ | |
b34976b6 | 381 | FALSE, /* pc_relative */ |
5bd4f169 AM |
382 | 0, /* bitpos */ |
383 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 384 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 385 | "R_PPC64_GOT16_LO", /* name */ |
b34976b6 | 386 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
387 | 0, /* src_mask */ |
388 | 0xffff, /* dst_mask */ | |
b34976b6 | 389 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
390 | |
391 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
392 | the symbol. */ | |
393 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
394 | 16, /* rightshift */ | |
395 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 16, /* bitsize */ | |
b34976b6 | 397 | FALSE, /* pc_relative */ |
5bd4f169 AM |
398 | 0, /* bitpos */ |
399 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 400 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 401 | "R_PPC64_GOT16_HI", /* name */ |
b34976b6 | 402 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
403 | 0, /* src_mask */ |
404 | 0xffff, /* dst_mask */ | |
b34976b6 | 405 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
406 | |
407 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
408 | the symbol. */ | |
409 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
410 | 16, /* rightshift */ | |
411 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 16, /* bitsize */ | |
b34976b6 | 413 | FALSE, /* pc_relative */ |
5bd4f169 AM |
414 | 0, /* bitpos */ |
415 | complain_overflow_dont,/* complain_on_overflow */ | |
805fc799 | 416 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 417 | "R_PPC64_GOT16_HA", /* name */ |
b34976b6 | 418 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
419 | 0, /* src_mask */ |
420 | 0xffff, /* dst_mask */ | |
b34976b6 | 421 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
422 | |
423 | /* This is used only by the dynamic linker. The symbol should exist | |
424 | both in the object being run and in some shared library. The | |
425 | dynamic linker copies the data addressed by the symbol from the | |
426 | shared library into the object, because the object being | |
427 | run has to have the data at some particular address. */ | |
428 | HOWTO (R_PPC64_COPY, /* type */ | |
429 | 0, /* rightshift */ | |
f5e87a1d AM |
430 | 0, /* this one is variable size */ |
431 | 0, /* bitsize */ | |
b34976b6 | 432 | FALSE, /* pc_relative */ |
5bd4f169 | 433 | 0, /* bitpos */ |
f5e87a1d AM |
434 | complain_overflow_dont, /* complain_on_overflow */ |
435 | ppc64_elf_unhandled_reloc, /* special_function */ | |
5bd4f169 | 436 | "R_PPC64_COPY", /* name */ |
b34976b6 | 437 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
438 | 0, /* src_mask */ |
439 | 0, /* dst_mask */ | |
b34976b6 | 440 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
441 | |
442 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
443 | entries. */ | |
444 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
445 | 0, /* rightshift */ | |
446 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
447 | 64, /* bitsize */ | |
b34976b6 | 448 | FALSE, /* pc_relative */ |
5bd4f169 AM |
449 | 0, /* bitpos */ |
450 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 451 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 452 | "R_PPC64_GLOB_DAT", /* name */ |
b34976b6 | 453 | FALSE, /* partial_inplace */ |
5bd4f169 | 454 | 0, /* src_mask */ |
f5e87a1d | 455 | ONES (64), /* dst_mask */ |
b34976b6 | 456 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
457 | |
458 | /* Created by the link editor. Marks a procedure linkage table | |
459 | entry for a symbol. */ | |
460 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
461 | 0, /* rightshift */ | |
462 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
463 | 0, /* bitsize */ | |
b34976b6 | 464 | FALSE, /* pc_relative */ |
5bd4f169 AM |
465 | 0, /* bitpos */ |
466 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 467 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 468 | "R_PPC64_JMP_SLOT", /* name */ |
b34976b6 | 469 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
470 | 0, /* src_mask */ |
471 | 0, /* dst_mask */ | |
b34976b6 | 472 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
473 | |
474 | /* Used only by the dynamic linker. When the object is run, this | |
475 | doubleword64 is set to the load address of the object, plus the | |
476 | addend. */ | |
477 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
478 | 0, /* rightshift */ | |
479 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
480 | 64, /* bitsize */ | |
b34976b6 | 481 | FALSE, /* pc_relative */ |
5bd4f169 AM |
482 | 0, /* bitpos */ |
483 | complain_overflow_dont, /* complain_on_overflow */ | |
484 | bfd_elf_generic_reloc, /* special_function */ | |
485 | "R_PPC64_RELATIVE", /* name */ | |
b34976b6 | 486 | FALSE, /* partial_inplace */ |
5bd4f169 | 487 | 0, /* src_mask */ |
f5e87a1d | 488 | ONES (64), /* dst_mask */ |
b34976b6 | 489 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
490 | |
491 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
492 | HOWTO (R_PPC64_UADDR32, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
b34976b6 | 496 | FALSE, /* pc_relative */ |
5bd4f169 AM |
497 | 0, /* bitpos */ |
498 | complain_overflow_bitfield, /* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_PPC64_UADDR32", /* name */ | |
b34976b6 | 501 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
502 | 0, /* src_mask */ |
503 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 504 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
505 | |
506 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
507 | HOWTO (R_PPC64_UADDR16, /* type */ | |
508 | 0, /* rightshift */ | |
509 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
510 | 16, /* bitsize */ | |
b34976b6 | 511 | FALSE, /* pc_relative */ |
5bd4f169 AM |
512 | 0, /* bitpos */ |
513 | complain_overflow_bitfield, /* complain_on_overflow */ | |
514 | bfd_elf_generic_reloc, /* special_function */ | |
515 | "R_PPC64_UADDR16", /* name */ | |
b34976b6 | 516 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
517 | 0, /* src_mask */ |
518 | 0xffff, /* dst_mask */ | |
b34976b6 | 519 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
520 | |
521 | /* 32-bit PC relative. */ | |
522 | HOWTO (R_PPC64_REL32, /* type */ | |
523 | 0, /* rightshift */ | |
524 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
525 | 32, /* bitsize */ | |
b34976b6 | 526 | TRUE, /* pc_relative */ |
5bd4f169 | 527 | 0, /* bitpos */ |
cedb70c5 | 528 | /* FIXME: Verify. Was complain_overflow_bitfield. */ |
5bd4f169 AM |
529 | complain_overflow_signed, /* complain_on_overflow */ |
530 | bfd_elf_generic_reloc, /* special_function */ | |
531 | "R_PPC64_REL32", /* name */ | |
b34976b6 | 532 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
533 | 0, /* src_mask */ |
534 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 535 | TRUE), /* pcrel_offset */ |
5bd4f169 | 536 | |
10ed1bba | 537 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
538 | HOWTO (R_PPC64_PLT32, /* type */ |
539 | 0, /* rightshift */ | |
540 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
541 | 32, /* bitsize */ | |
b34976b6 | 542 | FALSE, /* pc_relative */ |
5bd4f169 AM |
543 | 0, /* bitpos */ |
544 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 545 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 546 | "R_PPC64_PLT32", /* name */ |
b34976b6 | 547 | FALSE, /* partial_inplace */ |
5bd4f169 | 548 | 0, /* src_mask */ |
f5e87a1d | 549 | 0xffffffff, /* dst_mask */ |
b34976b6 | 550 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
551 | |
552 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
553 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
554 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
555 | 0, /* rightshift */ | |
556 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
557 | 32, /* bitsize */ | |
b34976b6 | 558 | TRUE, /* pc_relative */ |
5bd4f169 AM |
559 | 0, /* bitpos */ |
560 | complain_overflow_signed, /* complain_on_overflow */ | |
561 | bfd_elf_generic_reloc, /* special_function */ | |
562 | "R_PPC64_PLTREL32", /* name */ | |
b34976b6 | 563 | FALSE, /* partial_inplace */ |
5bd4f169 | 564 | 0, /* src_mask */ |
f5e87a1d | 565 | 0xffffffff, /* dst_mask */ |
b34976b6 | 566 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
567 | |
568 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
569 | the symbol. */ | |
570 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
571 | 0, /* rightshift */ | |
572 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
573 | 16, /* bitsize */ | |
b34976b6 | 574 | FALSE, /* pc_relative */ |
5bd4f169 AM |
575 | 0, /* bitpos */ |
576 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 577 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 578 | "R_PPC64_PLT16_LO", /* name */ |
b34976b6 | 579 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
580 | 0, /* src_mask */ |
581 | 0xffff, /* dst_mask */ | |
b34976b6 | 582 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
583 | |
584 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
585 | the symbol. */ | |
586 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
587 | 16, /* rightshift */ | |
588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
589 | 16, /* bitsize */ | |
b34976b6 | 590 | FALSE, /* pc_relative */ |
5bd4f169 AM |
591 | 0, /* bitpos */ |
592 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 593 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 594 | "R_PPC64_PLT16_HI", /* name */ |
b34976b6 | 595 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
596 | 0, /* src_mask */ |
597 | 0xffff, /* dst_mask */ | |
b34976b6 | 598 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
599 | |
600 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
601 | the symbol. */ | |
602 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
603 | 16, /* rightshift */ | |
604 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
605 | 16, /* bitsize */ | |
b34976b6 | 606 | FALSE, /* pc_relative */ |
5bd4f169 AM |
607 | 0, /* bitpos */ |
608 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 609 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 610 | "R_PPC64_PLT16_HA", /* name */ |
b34976b6 | 611 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
612 | 0, /* src_mask */ |
613 | 0xffff, /* dst_mask */ | |
b34976b6 | 614 | FALSE), /* pcrel_offset */ |
5bd4f169 | 615 | |
c061c2d8 | 616 | /* 16-bit section relative relocation. */ |
5bd4f169 AM |
617 | HOWTO (R_PPC64_SECTOFF, /* type */ |
618 | 0, /* rightshift */ | |
c061c2d8 AM |
619 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
620 | 16, /* bitsize */ | |
b34976b6 | 621 | FALSE, /* pc_relative */ |
5bd4f169 AM |
622 | 0, /* bitpos */ |
623 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 624 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 625 | "R_PPC64_SECTOFF", /* name */ |
b34976b6 | 626 | FALSE, /* partial_inplace */ |
5bd4f169 | 627 | 0, /* src_mask */ |
c061c2d8 | 628 | 0xffff, /* dst_mask */ |
b34976b6 | 629 | FALSE), /* pcrel_offset */ |
5bd4f169 | 630 | |
c061c2d8 | 631 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
5bd4f169 AM |
632 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
633 | 0, /* rightshift */ | |
634 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
635 | 16, /* bitsize */ | |
b34976b6 | 636 | FALSE, /* pc_relative */ |
5bd4f169 AM |
637 | 0, /* bitpos */ |
638 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 639 | ppc64_elf_sectoff_reloc, /* special_function */ |
5bd4f169 | 640 | "R_PPC64_SECTOFF_LO", /* name */ |
b34976b6 | 641 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
642 | 0, /* src_mask */ |
643 | 0xffff, /* dst_mask */ | |
b34976b6 | 644 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
645 | |
646 | /* 16-bit upper half section relative relocation. */ | |
647 | HOWTO (R_PPC64_SECTOFF_HI, /* 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_sectoff_reloc, /* special_function */ |
5bd4f169 | 655 | "R_PPC64_SECTOFF_HI", /* name */ |
b34976b6 | 656 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
657 | 0, /* src_mask */ |
658 | 0xffff, /* dst_mask */ | |
b34976b6 | 659 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
660 | |
661 | /* 16-bit upper half adjusted section relative relocation. */ | |
662 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
663 | 16, /* rightshift */ | |
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_dont, /* complain_on_overflow */ | |
805fc799 | 669 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
5bd4f169 | 670 | "R_PPC64_SECTOFF_HA", /* name */ |
b34976b6 | 671 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
672 | 0, /* src_mask */ |
673 | 0xffff, /* dst_mask */ | |
b34976b6 | 674 | FALSE), /* pcrel_offset */ |
5bd4f169 | 675 | |
04c9666a AM |
676 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
677 | HOWTO (R_PPC64_REL30, /* type */ | |
5bd4f169 AM |
678 | 2, /* rightshift */ |
679 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
680 | 30, /* bitsize */ | |
b34976b6 | 681 | TRUE, /* pc_relative */ |
5bd4f169 AM |
682 | 0, /* bitpos */ |
683 | complain_overflow_dont, /* complain_on_overflow */ | |
684 | bfd_elf_generic_reloc, /* special_function */ | |
04c9666a | 685 | "R_PPC64_REL30", /* name */ |
b34976b6 | 686 | FALSE, /* partial_inplace */ |
d006db6c | 687 | 0, /* src_mask */ |
5bd4f169 | 688 | 0xfffffffc, /* dst_mask */ |
b34976b6 | 689 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
690 | |
691 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
692 | ||
693 | /* A standard 64-bit relocation. */ | |
694 | HOWTO (R_PPC64_ADDR64, /* type */ | |
695 | 0, /* rightshift */ | |
696 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
697 | 64, /* bitsize */ | |
b34976b6 | 698 | FALSE, /* pc_relative */ |
5bd4f169 AM |
699 | 0, /* bitpos */ |
700 | complain_overflow_dont, /* complain_on_overflow */ | |
701 | bfd_elf_generic_reloc, /* special_function */ | |
702 | "R_PPC64_ADDR64", /* name */ | |
b34976b6 | 703 | FALSE, /* partial_inplace */ |
5bd4f169 | 704 | 0, /* src_mask */ |
f5e87a1d | 705 | ONES (64), /* dst_mask */ |
b34976b6 | 706 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
707 | |
708 | /* The bits 32-47 of an address. */ | |
709 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
710 | 32, /* rightshift */ | |
711 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
712 | 16, /* bitsize */ | |
b34976b6 | 713 | FALSE, /* pc_relative */ |
5bd4f169 AM |
714 | 0, /* bitpos */ |
715 | complain_overflow_dont, /* complain_on_overflow */ | |
716 | bfd_elf_generic_reloc, /* special_function */ | |
717 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
b34976b6 | 718 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
719 | 0, /* src_mask */ |
720 | 0xffff, /* dst_mask */ | |
b34976b6 | 721 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
722 | |
723 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
724 | 16 bits, treated as a signed number, is negative. */ | |
725 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
726 | 32, /* rightshift */ | |
727 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
728 | 16, /* bitsize */ | |
b34976b6 | 729 | FALSE, /* pc_relative */ |
5bd4f169 AM |
730 | 0, /* bitpos */ |
731 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 732 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 733 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
b34976b6 | 734 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
735 | 0, /* src_mask */ |
736 | 0xffff, /* dst_mask */ | |
b34976b6 | 737 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
738 | |
739 | /* The bits 48-63 of an address. */ | |
740 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
741 | 48, /* rightshift */ | |
742 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
743 | 16, /* bitsize */ | |
b34976b6 | 744 | FALSE, /* pc_relative */ |
5bd4f169 AM |
745 | 0, /* bitpos */ |
746 | complain_overflow_dont, /* complain_on_overflow */ | |
747 | bfd_elf_generic_reloc, /* special_function */ | |
748 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
b34976b6 | 749 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
750 | 0, /* src_mask */ |
751 | 0xffff, /* dst_mask */ | |
b34976b6 | 752 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
753 | |
754 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
755 | 16 bits, treated as a signed number, is negative. */ | |
756 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
757 | 48, /* rightshift */ | |
758 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
759 | 16, /* bitsize */ | |
b34976b6 | 760 | FALSE, /* pc_relative */ |
5bd4f169 AM |
761 | 0, /* bitpos */ |
762 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 763 | ppc64_elf_ha_reloc, /* special_function */ |
5bd4f169 | 764 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
b34976b6 | 765 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
766 | 0, /* src_mask */ |
767 | 0xffff, /* dst_mask */ | |
b34976b6 | 768 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
769 | |
770 | /* Like ADDR64, but may be unaligned. */ | |
771 | HOWTO (R_PPC64_UADDR64, /* type */ | |
772 | 0, /* rightshift */ | |
773 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
774 | 64, /* bitsize */ | |
b34976b6 | 775 | FALSE, /* pc_relative */ |
5bd4f169 AM |
776 | 0, /* bitpos */ |
777 | complain_overflow_dont, /* complain_on_overflow */ | |
778 | bfd_elf_generic_reloc, /* special_function */ | |
779 | "R_PPC64_UADDR64", /* name */ | |
b34976b6 | 780 | FALSE, /* partial_inplace */ |
5bd4f169 | 781 | 0, /* src_mask */ |
f5e87a1d | 782 | ONES (64), /* dst_mask */ |
b34976b6 | 783 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
784 | |
785 | /* 64-bit relative relocation. */ | |
786 | HOWTO (R_PPC64_REL64, /* type */ | |
787 | 0, /* rightshift */ | |
788 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
789 | 64, /* bitsize */ | |
b34976b6 | 790 | TRUE, /* pc_relative */ |
5bd4f169 AM |
791 | 0, /* bitpos */ |
792 | complain_overflow_dont, /* complain_on_overflow */ | |
793 | bfd_elf_generic_reloc, /* special_function */ | |
794 | "R_PPC64_REL64", /* name */ | |
b34976b6 | 795 | FALSE, /* partial_inplace */ |
5bd4f169 | 796 | 0, /* src_mask */ |
f5e87a1d | 797 | ONES (64), /* dst_mask */ |
b34976b6 | 798 | TRUE), /* pcrel_offset */ |
5bd4f169 | 799 | |
cedb70c5 | 800 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
5bd4f169 AM |
801 | HOWTO (R_PPC64_PLT64, /* type */ |
802 | 0, /* rightshift */ | |
803 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
804 | 64, /* bitsize */ | |
b34976b6 | 805 | FALSE, /* pc_relative */ |
5bd4f169 AM |
806 | 0, /* bitpos */ |
807 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 808 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 809 | "R_PPC64_PLT64", /* name */ |
b34976b6 | 810 | FALSE, /* partial_inplace */ |
5bd4f169 | 811 | 0, /* src_mask */ |
f5e87a1d | 812 | ONES (64), /* dst_mask */ |
b34976b6 | 813 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
814 | |
815 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
816 | table. */ | |
817 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
818 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
819 | 0, /* rightshift */ | |
820 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
821 | 64, /* bitsize */ | |
b34976b6 | 822 | TRUE, /* pc_relative */ |
5bd4f169 AM |
823 | 0, /* bitpos */ |
824 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 825 | ppc64_elf_unhandled_reloc, /* special_function */ |
5bd4f169 | 826 | "R_PPC64_PLTREL64", /* name */ |
b34976b6 | 827 | FALSE, /* partial_inplace */ |
5bd4f169 | 828 | 0, /* src_mask */ |
f5e87a1d | 829 | ONES (64), /* dst_mask */ |
b34976b6 | 830 | TRUE), /* pcrel_offset */ |
5bd4f169 AM |
831 | |
832 | /* 16 bit TOC-relative relocation. */ | |
833 | ||
834 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
835 | HOWTO (R_PPC64_TOC16, /* type */ | |
836 | 0, /* rightshift */ | |
837 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
838 | 16, /* bitsize */ | |
b34976b6 | 839 | FALSE, /* pc_relative */ |
5bd4f169 AM |
840 | 0, /* bitpos */ |
841 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 842 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 843 | "R_PPC64_TOC16", /* name */ |
b34976b6 | 844 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
845 | 0, /* src_mask */ |
846 | 0xffff, /* dst_mask */ | |
b34976b6 | 847 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
848 | |
849 | /* 16 bit TOC-relative relocation without overflow. */ | |
850 | ||
851 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
852 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
853 | 0, /* rightshift */ | |
854 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
855 | 16, /* bitsize */ | |
b34976b6 | 856 | FALSE, /* pc_relative */ |
5bd4f169 AM |
857 | 0, /* bitpos */ |
858 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 859 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 860 | "R_PPC64_TOC16_LO", /* name */ |
b34976b6 | 861 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
862 | 0, /* src_mask */ |
863 | 0xffff, /* dst_mask */ | |
b34976b6 | 864 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
865 | |
866 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
867 | ||
868 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
869 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
870 | 16, /* rightshift */ | |
871 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
872 | 16, /* bitsize */ | |
b34976b6 | 873 | FALSE, /* pc_relative */ |
5bd4f169 AM |
874 | 0, /* bitpos */ |
875 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 876 | ppc64_elf_toc_reloc, /* special_function */ |
5bd4f169 | 877 | "R_PPC64_TOC16_HI", /* name */ |
b34976b6 | 878 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
879 | 0, /* src_mask */ |
880 | 0xffff, /* dst_mask */ | |
b34976b6 | 881 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
882 | |
883 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
884 | contents of the low 16 bits, treated as a signed number, is | |
885 | negative. */ | |
886 | ||
887 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
888 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
889 | 16, /* rightshift */ | |
890 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
891 | 16, /* bitsize */ | |
b34976b6 | 892 | FALSE, /* pc_relative */ |
5bd4f169 AM |
893 | 0, /* bitpos */ |
894 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 895 | ppc64_elf_toc_ha_reloc, /* special_function */ |
5bd4f169 | 896 | "R_PPC64_TOC16_HA", /* name */ |
b34976b6 | 897 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
898 | 0, /* src_mask */ |
899 | 0xffff, /* dst_mask */ | |
b34976b6 | 900 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
901 | |
902 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
903 | ||
904 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
905 | HOWTO (R_PPC64_TOC, /* type */ | |
906 | 0, /* rightshift */ | |
907 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
908 | 64, /* bitsize */ | |
b34976b6 | 909 | FALSE, /* pc_relative */ |
5bd4f169 AM |
910 | 0, /* bitpos */ |
911 | complain_overflow_bitfield, /* complain_on_overflow */ | |
805fc799 | 912 | ppc64_elf_toc64_reloc, /* special_function */ |
5bd4f169 | 913 | "R_PPC64_TOC", /* name */ |
b34976b6 | 914 | FALSE, /* partial_inplace */ |
5bd4f169 | 915 | 0, /* src_mask */ |
f5e87a1d | 916 | ONES (64), /* dst_mask */ |
b34976b6 | 917 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
918 | |
919 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
920 | value to relocate may (!) refer to a PLT entry which the link | |
921 | editor (a) may replace with the symbol value. If the link editor | |
922 | is unable to fully resolve the symbol, it may (b) create a PLT | |
923 | entry and store the address to the new PLT entry in the GOT. | |
924 | This permits lazy resolution of function symbols at run time. | |
925 | The link editor may also skip all of this and just (c) emit a | |
926 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
927 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
928 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
929 | 0, /* rightshift */ | |
930 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
931 | 16, /* bitsize */ | |
b34976b6 | 932 | FALSE, /* pc_relative */ |
5bd4f169 AM |
933 | 0, /* bitpos */ |
934 | complain_overflow_signed, /* complain_on_overflow */ | |
805fc799 | 935 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb AM |
936 | "R_PPC64_PLTGOT16", /* name */ |
937 | FALSE, /* partial_inplace */ | |
938 | 0, /* src_mask */ | |
939 | 0xffff, /* dst_mask */ | |
940 | FALSE), /* pcrel_offset */ | |
941 | ||
942 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
943 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
944 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
945 | 0, /* rightshift */ | |
946 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
947 | 16, /* bitsize */ | |
948 | FALSE, /* pc_relative */ | |
949 | 0, /* bitpos */ | |
950 | complain_overflow_dont, /* complain_on_overflow */ | |
951 | ppc64_elf_unhandled_reloc, /* special_function */ | |
952 | "R_PPC64_PLTGOT16_LO", /* name */ | |
953 | FALSE, /* partial_inplace */ | |
954 | 0, /* src_mask */ | |
955 | 0xffff, /* dst_mask */ | |
956 | FALSE), /* pcrel_offset */ | |
957 | ||
958 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
959 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
960 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
961 | 16, /* rightshift */ | |
962 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
963 | 16, /* bitsize */ | |
964 | FALSE, /* pc_relative */ | |
965 | 0, /* bitpos */ | |
966 | complain_overflow_dont, /* complain_on_overflow */ | |
967 | ppc64_elf_unhandled_reloc, /* special_function */ | |
968 | "R_PPC64_PLTGOT16_HI", /* name */ | |
969 | FALSE, /* partial_inplace */ | |
970 | 0, /* src_mask */ | |
971 | 0xffff, /* dst_mask */ | |
972 | FALSE), /* pcrel_offset */ | |
973 | ||
974 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
975 | 1 if the contents of the low 16 bits, treated as a signed number, | |
976 | is negative. */ | |
977 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
978 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
979 | 16, /* rightshift */ | |
980 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
981 | 16, /* bitsize */ | |
982 | FALSE, /* pc_relative */ | |
983 | 0, /* bitpos */ | |
984 | complain_overflow_dont,/* complain_on_overflow */ | |
985 | ppc64_elf_unhandled_reloc, /* special_function */ | |
986 | "R_PPC64_PLTGOT16_HA", /* name */ | |
987 | FALSE, /* partial_inplace */ | |
988 | 0, /* src_mask */ | |
989 | 0xffff, /* dst_mask */ | |
990 | FALSE), /* pcrel_offset */ | |
991 | ||
992 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
993 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
994 | 0, /* rightshift */ | |
995 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
996 | 16, /* bitsize */ | |
997 | FALSE, /* pc_relative */ | |
998 | 0, /* bitpos */ | |
999 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1000 | bfd_elf_generic_reloc, /* special_function */ | |
1001 | "R_PPC64_ADDR16_DS", /* name */ | |
1002 | FALSE, /* partial_inplace */ | |
1003 | 0, /* src_mask */ | |
1004 | 0xfffc, /* dst_mask */ | |
1005 | FALSE), /* pcrel_offset */ | |
1006 | ||
1007 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
1008 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
1009 | 0, /* rightshift */ | |
1010 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1011 | 16, /* bitsize */ | |
1012 | FALSE, /* pc_relative */ | |
1013 | 0, /* bitpos */ | |
1014 | complain_overflow_dont,/* complain_on_overflow */ | |
1015 | bfd_elf_generic_reloc, /* special_function */ | |
1016 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
1017 | FALSE, /* partial_inplace */ | |
1018 | 0, /* src_mask */ | |
1019 | 0xfffc, /* dst_mask */ | |
1020 | FALSE), /* pcrel_offset */ | |
1021 | ||
1022 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
1023 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
1024 | 0, /* rightshift */ | |
1025 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1026 | 16, /* bitsize */ | |
1027 | FALSE, /* pc_relative */ | |
1028 | 0, /* bitpos */ | |
1029 | complain_overflow_signed, /* complain_on_overflow */ | |
1030 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1031 | "R_PPC64_GOT16_DS", /* name */ | |
1032 | FALSE, /* partial_inplace */ | |
1033 | 0, /* src_mask */ | |
1034 | 0xfffc, /* dst_mask */ | |
1035 | FALSE), /* pcrel_offset */ | |
1036 | ||
1037 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
1038 | HOWTO (R_PPC64_GOT16_LO_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_dont, /* complain_on_overflow */ | |
1045 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1046 | "R_PPC64_GOT16_LO_DS", /* name */ | |
1047 | FALSE, /* partial_inplace */ | |
1048 | 0, /* src_mask */ | |
1049 | 0xfffc, /* dst_mask */ | |
1050 | FALSE), /* pcrel_offset */ | |
1051 | ||
1052 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
1053 | HOWTO (R_PPC64_PLT16_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 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1061 | "R_PPC64_PLT16_LO_DS", /* name */ | |
1062 | FALSE, /* partial_inplace */ | |
1063 | 0, /* src_mask */ | |
1064 | 0xfffc, /* dst_mask */ | |
1065 | FALSE), /* pcrel_offset */ | |
1066 | ||
1067 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
1068 | HOWTO (R_PPC64_SECTOFF_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_bitfield, /* complain_on_overflow */ | |
1075 | ppc64_elf_sectoff_reloc, /* special_function */ | |
1076 | "R_PPC64_SECTOFF_DS", /* name */ | |
1077 | FALSE, /* partial_inplace */ | |
1078 | 0, /* src_mask */ | |
1079 | 0xfffc, /* dst_mask */ | |
1080 | FALSE), /* pcrel_offset */ | |
1081 | ||
1082 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
1083 | HOWTO (R_PPC64_SECTOFF_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_sectoff_reloc, /* special_function */ | |
1091 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
1092 | FALSE, /* partial_inplace */ | |
1093 | 0, /* src_mask */ | |
1094 | 0xfffc, /* dst_mask */ | |
1095 | FALSE), /* pcrel_offset */ | |
1096 | ||
1097 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
1098 | HOWTO (R_PPC64_TOC16_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_signed, /* complain_on_overflow */ | |
1105 | ppc64_elf_toc_reloc, /* special_function */ | |
1106 | "R_PPC64_TOC16_DS", /* name */ | |
1107 | FALSE, /* partial_inplace */ | |
1108 | 0, /* src_mask */ | |
1109 | 0xfffc, /* dst_mask */ | |
1110 | FALSE), /* pcrel_offset */ | |
1111 | ||
1112 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
1113 | HOWTO (R_PPC64_TOC16_LO_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_dont, /* complain_on_overflow */ | |
1120 | ppc64_elf_toc_reloc, /* special_function */ | |
1121 | "R_PPC64_TOC16_LO_DS", /* name */ | |
1122 | FALSE, /* partial_inplace */ | |
1123 | 0, /* src_mask */ | |
1124 | 0xfffc, /* dst_mask */ | |
1125 | FALSE), /* pcrel_offset */ | |
1126 | ||
1127 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
1128 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
1129 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ | |
1130 | 0, /* rightshift */ | |
1131 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1132 | 16, /* bitsize */ | |
1133 | FALSE, /* pc_relative */ | |
1134 | 0, /* bitpos */ | |
1135 | complain_overflow_signed, /* complain_on_overflow */ | |
1136 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1137 | "R_PPC64_PLTGOT16_DS", /* name */ | |
1138 | FALSE, /* partial_inplace */ | |
1139 | 0, /* src_mask */ | |
1140 | 0xfffc, /* dst_mask */ | |
1141 | FALSE), /* pcrel_offset */ | |
1142 | ||
1143 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
1144 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
1145 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
1146 | 0, /* rightshift */ | |
1147 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1148 | 16, /* bitsize */ | |
1149 | FALSE, /* pc_relative */ | |
1150 | 0, /* bitpos */ | |
1151 | complain_overflow_dont, /* complain_on_overflow */ | |
1152 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1153 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
1154 | FALSE, /* partial_inplace */ | |
1155 | 0, /* src_mask */ | |
1156 | 0xfffc, /* dst_mask */ | |
1157 | FALSE), /* pcrel_offset */ | |
1158 | ||
1159 | /* Marker reloc for TLS. */ | |
1160 | HOWTO (R_PPC64_TLS, | |
1161 | 0, /* rightshift */ | |
1162 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1163 | 32, /* bitsize */ | |
1164 | FALSE, /* pc_relative */ | |
1165 | 0, /* bitpos */ | |
1166 | complain_overflow_dont, /* complain_on_overflow */ | |
1167 | bfd_elf_generic_reloc, /* special_function */ | |
1168 | "R_PPC64_TLS", /* name */ | |
1169 | FALSE, /* partial_inplace */ | |
1170 | 0, /* src_mask */ | |
1171 | 0, /* dst_mask */ | |
1172 | FALSE), /* pcrel_offset */ | |
1173 | ||
1174 | /* Computes the load module index of the load module that contains the | |
1175 | definition of its TLS sym. */ | |
1176 | HOWTO (R_PPC64_DTPMOD64, | |
1177 | 0, /* rightshift */ | |
1178 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1179 | 64, /* bitsize */ | |
1180 | FALSE, /* pc_relative */ | |
1181 | 0, /* bitpos */ | |
1182 | complain_overflow_dont, /* complain_on_overflow */ | |
1183 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1184 | "R_PPC64_DTPMOD64", /* name */ | |
1185 | FALSE, /* partial_inplace */ | |
1186 | 0, /* src_mask */ | |
1187 | ONES (64), /* dst_mask */ | |
1188 | FALSE), /* pcrel_offset */ | |
1189 | ||
1190 | /* Computes a dtv-relative displacement, the difference between the value | |
1191 | of sym+add and the base address of the thread-local storage block that | |
1192 | contains the definition of sym, minus 0x8000. */ | |
1193 | HOWTO (R_PPC64_DTPREL64, | |
1194 | 0, /* rightshift */ | |
1195 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1196 | 64, /* bitsize */ | |
1197 | FALSE, /* pc_relative */ | |
1198 | 0, /* bitpos */ | |
1199 | complain_overflow_dont, /* complain_on_overflow */ | |
1200 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1201 | "R_PPC64_DTPREL64", /* name */ | |
1202 | FALSE, /* partial_inplace */ | |
1203 | 0, /* src_mask */ | |
1204 | ONES (64), /* dst_mask */ | |
1205 | FALSE), /* pcrel_offset */ | |
1206 | ||
1207 | /* A 16 bit dtprel reloc. */ | |
1208 | HOWTO (R_PPC64_DTPREL16, | |
1209 | 0, /* rightshift */ | |
1210 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1211 | 16, /* bitsize */ | |
1212 | FALSE, /* pc_relative */ | |
1213 | 0, /* bitpos */ | |
1214 | complain_overflow_signed, /* complain_on_overflow */ | |
1215 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1216 | "R_PPC64_DTPREL16", /* name */ | |
1217 | FALSE, /* partial_inplace */ | |
1218 | 0, /* src_mask */ | |
1219 | 0xffff, /* dst_mask */ | |
1220 | FALSE), /* pcrel_offset */ | |
1221 | ||
1222 | /* Like DTPREL16, but no overflow. */ | |
1223 | HOWTO (R_PPC64_DTPREL16_LO, | |
1224 | 0, /* rightshift */ | |
1225 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1226 | 16, /* bitsize */ | |
1227 | FALSE, /* pc_relative */ | |
1228 | 0, /* bitpos */ | |
1229 | complain_overflow_dont, /* complain_on_overflow */ | |
1230 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1231 | "R_PPC64_DTPREL16_LO", /* name */ | |
1232 | FALSE, /* partial_inplace */ | |
1233 | 0, /* src_mask */ | |
1234 | 0xffff, /* dst_mask */ | |
1235 | FALSE), /* pcrel_offset */ | |
1236 | ||
1237 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
1238 | HOWTO (R_PPC64_DTPREL16_HI, | |
1239 | 16, /* rightshift */ | |
1240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1241 | 16, /* 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_DTPREL16_HI", /* name */ | |
1247 | FALSE, /* partial_inplace */ | |
1248 | 0, /* src_mask */ | |
1249 | 0xffff, /* dst_mask */ | |
1250 | FALSE), /* pcrel_offset */ | |
1251 | ||
1252 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
1253 | HOWTO (R_PPC64_DTPREL16_HA, | |
1254 | 16, /* rightshift */ | |
1255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1256 | 16, /* bitsize */ | |
1257 | FALSE, /* pc_relative */ | |
1258 | 0, /* bitpos */ | |
1259 | complain_overflow_dont, /* complain_on_overflow */ | |
1260 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1261 | "R_PPC64_DTPREL16_HA", /* name */ | |
1262 | FALSE, /* partial_inplace */ | |
1263 | 0, /* src_mask */ | |
1264 | 0xffff, /* dst_mask */ | |
1265 | FALSE), /* pcrel_offset */ | |
1266 | ||
1267 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
1268 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
1269 | 32, /* 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_HIGHER", /* name */ | |
1277 | FALSE, /* partial_inplace */ | |
1278 | 0, /* src_mask */ | |
1279 | 0xffff, /* dst_mask */ | |
1280 | FALSE), /* pcrel_offset */ | |
1281 | ||
1282 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
1283 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
1284 | 32, /* 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_HIGHERA", /* name */ | |
1292 | FALSE, /* partial_inplace */ | |
1293 | 0, /* src_mask */ | |
1294 | 0xffff, /* dst_mask */ | |
1295 | FALSE), /* pcrel_offset */ | |
1296 | ||
1297 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
1298 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
1299 | 48, /* 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_HIGHEST", /* name */ | |
1307 | FALSE, /* partial_inplace */ | |
1308 | 0, /* src_mask */ | |
1309 | 0xffff, /* dst_mask */ | |
1310 | FALSE), /* pcrel_offset */ | |
1311 | ||
1312 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1313 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
1314 | 48, /* 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_HIGHESTA", /* name */ | |
1322 | FALSE, /* partial_inplace */ | |
1323 | 0, /* src_mask */ | |
1324 | 0xffff, /* dst_mask */ | |
1325 | FALSE), /* pcrel_offset */ | |
1326 | ||
1327 | /* Like DTPREL16, but for insns with a DS field. */ | |
1328 | HOWTO (R_PPC64_DTPREL16_DS, | |
1329 | 0, /* rightshift */ | |
1330 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1331 | 16, /* bitsize */ | |
1332 | FALSE, /* pc_relative */ | |
1333 | 0, /* bitpos */ | |
1334 | complain_overflow_signed, /* complain_on_overflow */ | |
1335 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1336 | "R_PPC64_DTPREL16_DS", /* name */ | |
1337 | FALSE, /* partial_inplace */ | |
1338 | 0, /* src_mask */ | |
1339 | 0xfffc, /* dst_mask */ | |
1340 | FALSE), /* pcrel_offset */ | |
1341 | ||
1342 | /* Like DTPREL16_DS, but no overflow. */ | |
1343 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
1344 | 0, /* 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_LO_DS", /* name */ | |
1352 | FALSE, /* partial_inplace */ | |
1353 | 0, /* src_mask */ | |
1354 | 0xfffc, /* dst_mask */ | |
1355 | FALSE), /* pcrel_offset */ | |
1356 | ||
1357 | /* Computes a tp-relative displacement, the difference between the value of | |
1358 | sym+add and the value of the thread pointer (r13). */ | |
1359 | HOWTO (R_PPC64_TPREL64, | |
1360 | 0, /* rightshift */ | |
1361 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
1362 | 64, /* bitsize */ | |
1363 | FALSE, /* pc_relative */ | |
1364 | 0, /* bitpos */ | |
1365 | complain_overflow_dont, /* complain_on_overflow */ | |
1366 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1367 | "R_PPC64_TPREL64", /* name */ | |
1368 | FALSE, /* partial_inplace */ | |
1369 | 0, /* src_mask */ | |
1370 | ONES (64), /* dst_mask */ | |
1371 | FALSE), /* pcrel_offset */ | |
1372 | ||
1373 | /* A 16 bit tprel reloc. */ | |
1374 | HOWTO (R_PPC64_TPREL16, | |
1375 | 0, /* rightshift */ | |
1376 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1377 | 16, /* bitsize */ | |
1378 | FALSE, /* pc_relative */ | |
1379 | 0, /* bitpos */ | |
1380 | complain_overflow_signed, /* complain_on_overflow */ | |
1381 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1382 | "R_PPC64_TPREL16", /* name */ | |
1383 | FALSE, /* partial_inplace */ | |
1384 | 0, /* src_mask */ | |
1385 | 0xffff, /* dst_mask */ | |
1386 | FALSE), /* pcrel_offset */ | |
1387 | ||
1388 | /* Like TPREL16, but no overflow. */ | |
1389 | HOWTO (R_PPC64_TPREL16_LO, | |
1390 | 0, /* rightshift */ | |
1391 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1392 | 16, /* bitsize */ | |
1393 | FALSE, /* pc_relative */ | |
1394 | 0, /* bitpos */ | |
1395 | complain_overflow_dont, /* complain_on_overflow */ | |
1396 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1397 | "R_PPC64_TPREL16_LO", /* name */ | |
1398 | FALSE, /* partial_inplace */ | |
1399 | 0, /* src_mask */ | |
1400 | 0xffff, /* dst_mask */ | |
1401 | FALSE), /* pcrel_offset */ | |
1402 | ||
1403 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
1404 | HOWTO (R_PPC64_TPREL16_HI, | |
1405 | 16, /* rightshift */ | |
1406 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1407 | 16, /* 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_TPREL16_HI", /* name */ | |
1413 | FALSE, /* partial_inplace */ | |
1414 | 0, /* src_mask */ | |
1415 | 0xffff, /* dst_mask */ | |
1416 | FALSE), /* pcrel_offset */ | |
1417 | ||
1418 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
1419 | HOWTO (R_PPC64_TPREL16_HA, | |
1420 | 16, /* rightshift */ | |
1421 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1422 | 16, /* bitsize */ | |
1423 | FALSE, /* pc_relative */ | |
1424 | 0, /* bitpos */ | |
1425 | complain_overflow_dont, /* complain_on_overflow */ | |
1426 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1427 | "R_PPC64_TPREL16_HA", /* name */ | |
1428 | FALSE, /* partial_inplace */ | |
1429 | 0, /* src_mask */ | |
1430 | 0xffff, /* dst_mask */ | |
1431 | FALSE), /* pcrel_offset */ | |
1432 | ||
1433 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
1434 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
1435 | 32, /* 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_HIGHER", /* name */ | |
1443 | FALSE, /* partial_inplace */ | |
1444 | 0, /* src_mask */ | |
1445 | 0xffff, /* dst_mask */ | |
1446 | FALSE), /* pcrel_offset */ | |
1447 | ||
1448 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
1449 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
1450 | 32, /* 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_HIGHERA", /* name */ | |
1458 | FALSE, /* partial_inplace */ | |
1459 | 0, /* src_mask */ | |
1460 | 0xffff, /* dst_mask */ | |
1461 | FALSE), /* pcrel_offset */ | |
1462 | ||
1463 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
1464 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
1465 | 48, /* 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_HIGHEST", /* name */ | |
1473 | FALSE, /* partial_inplace */ | |
1474 | 0, /* src_mask */ | |
1475 | 0xffff, /* dst_mask */ | |
1476 | FALSE), /* pcrel_offset */ | |
1477 | ||
1478 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
1479 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
1480 | 48, /* 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_HIGHESTA", /* name */ | |
1488 | FALSE, /* partial_inplace */ | |
1489 | 0, /* src_mask */ | |
1490 | 0xffff, /* dst_mask */ | |
1491 | FALSE), /* pcrel_offset */ | |
1492 | ||
1493 | /* Like TPREL16, but for insns with a DS field. */ | |
1494 | HOWTO (R_PPC64_TPREL16_DS, | |
1495 | 0, /* rightshift */ | |
1496 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1497 | 16, /* bitsize */ | |
1498 | FALSE, /* pc_relative */ | |
1499 | 0, /* bitpos */ | |
1500 | complain_overflow_signed, /* complain_on_overflow */ | |
1501 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1502 | "R_PPC64_TPREL16_DS", /* name */ | |
1503 | FALSE, /* partial_inplace */ | |
1504 | 0, /* src_mask */ | |
1505 | 0xfffc, /* dst_mask */ | |
1506 | FALSE), /* pcrel_offset */ | |
1507 | ||
1508 | /* Like TPREL16_DS, but no overflow. */ | |
1509 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
1510 | 0, /* 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_LO_DS", /* name */ | |
1518 | FALSE, /* partial_inplace */ | |
1519 | 0, /* src_mask */ | |
1520 | 0xfffc, /* dst_mask */ | |
1521 | FALSE), /* pcrel_offset */ | |
1522 | ||
1523 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1524 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
1525 | to the first entry relative to the TOC base (r2). */ | |
1526 | HOWTO (R_PPC64_GOT_TLSGD16, | |
1527 | 0, /* rightshift */ | |
1528 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1529 | 16, /* bitsize */ | |
1530 | FALSE, /* pc_relative */ | |
1531 | 0, /* bitpos */ | |
1532 | complain_overflow_signed, /* complain_on_overflow */ | |
1533 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1534 | "R_PPC64_GOT_TLSGD16", /* name */ | |
b34976b6 | 1535 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1536 | 0, /* src_mask */ |
1537 | 0xffff, /* dst_mask */ | |
b34976b6 | 1538 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1539 | |
411e1bfb AM |
1540 | /* Like GOT_TLSGD16, but no overflow. */ |
1541 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
5bd4f169 AM |
1542 | 0, /* rightshift */ |
1543 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1544 | 16, /* bitsize */ | |
b34976b6 | 1545 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1546 | 0, /* bitpos */ |
1547 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1548 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1549 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
b34976b6 | 1550 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1551 | 0, /* src_mask */ |
1552 | 0xffff, /* dst_mask */ | |
b34976b6 | 1553 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1554 | |
411e1bfb AM |
1555 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1556 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
5bd4f169 AM |
1557 | 16, /* rightshift */ |
1558 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1559 | 16, /* bitsize */ | |
b34976b6 | 1560 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1561 | 0, /* bitpos */ |
1562 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1563 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1564 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
b34976b6 | 1565 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1566 | 0, /* src_mask */ |
1567 | 0xffff, /* dst_mask */ | |
b34976b6 | 1568 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1569 | |
411e1bfb AM |
1570 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1571 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
5bd4f169 AM |
1572 | 16, /* rightshift */ |
1573 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1574 | 16, /* bitsize */ | |
b34976b6 | 1575 | FALSE, /* pc_relative */ |
5bd4f169 | 1576 | 0, /* bitpos */ |
411e1bfb | 1577 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1578 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1579 | "R_PPC64_GOT_TLSGD16_HA", /* 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 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
1586 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1587 | first entry relative to the TOC base (r2). */ | |
1588 | HOWTO (R_PPC64_GOT_TLSLD16, | |
5bd4f169 AM |
1589 | 0, /* rightshift */ |
1590 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1591 | 16, /* bitsize */ | |
b34976b6 | 1592 | FALSE, /* pc_relative */ |
5bd4f169 | 1593 | 0, /* bitpos */ |
411e1bfb AM |
1594 | complain_overflow_signed, /* complain_on_overflow */ |
1595 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1596 | "R_PPC64_GOT_TLSLD16", /* name */ | |
b34976b6 | 1597 | FALSE, /* partial_inplace */ |
d006db6c | 1598 | 0, /* src_mask */ |
411e1bfb | 1599 | 0xffff, /* dst_mask */ |
b34976b6 | 1600 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1601 | |
411e1bfb AM |
1602 | /* Like GOT_TLSLD16, but no overflow. */ |
1603 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
5bd4f169 AM |
1604 | 0, /* rightshift */ |
1605 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1606 | 16, /* bitsize */ | |
b34976b6 | 1607 | FALSE, /* pc_relative */ |
5bd4f169 | 1608 | 0, /* bitpos */ |
411e1bfb AM |
1609 | complain_overflow_dont, /* complain_on_overflow */ |
1610 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1611 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1612 | FALSE, /* partial_inplace */ |
d006db6c | 1613 | 0, /* src_mask */ |
411e1bfb | 1614 | 0xffff, /* dst_mask */ |
b34976b6 | 1615 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1616 | |
411e1bfb AM |
1617 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1618 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
1619 | 16, /* rightshift */ | |
5bd4f169 AM |
1620 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1621 | 16, /* bitsize */ | |
b34976b6 | 1622 | FALSE, /* pc_relative */ |
5bd4f169 | 1623 | 0, /* bitpos */ |
411e1bfb | 1624 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1625 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1626 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
b34976b6 | 1627 | FALSE, /* partial_inplace */ |
d006db6c | 1628 | 0, /* src_mask */ |
411e1bfb | 1629 | 0xffff, /* dst_mask */ |
b34976b6 | 1630 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1631 | |
411e1bfb AM |
1632 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1633 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
1634 | 16, /* rightshift */ | |
5bd4f169 AM |
1635 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1636 | 16, /* bitsize */ | |
b34976b6 | 1637 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1638 | 0, /* bitpos */ |
1639 | complain_overflow_dont, /* complain_on_overflow */ | |
805fc799 | 1640 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1641 | "R_PPC64_GOT_TLSLD16_HA", /* 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 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
1648 | the offset to the entry relative to the TOC base (r2). */ | |
1649 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
5bd4f169 AM |
1650 | 0, /* rightshift */ |
1651 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1652 | 16, /* bitsize */ | |
b34976b6 | 1653 | FALSE, /* pc_relative */ |
5bd4f169 | 1654 | 0, /* bitpos */ |
411e1bfb | 1655 | complain_overflow_signed, /* complain_on_overflow */ |
805fc799 | 1656 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1657 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
b34976b6 | 1658 | FALSE, /* partial_inplace */ |
d006db6c | 1659 | 0, /* src_mask */ |
5bd4f169 | 1660 | 0xfffc, /* dst_mask */ |
b34976b6 | 1661 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1662 | |
411e1bfb AM |
1663 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
1664 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
5bd4f169 | 1665 | 0, /* rightshift */ |
c061c2d8 AM |
1666 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1667 | 16, /* bitsize */ | |
b34976b6 | 1668 | FALSE, /* pc_relative */ |
5bd4f169 | 1669 | 0, /* bitpos */ |
411e1bfb AM |
1670 | complain_overflow_dont, /* complain_on_overflow */ |
1671 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1672 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
b34976b6 | 1673 | FALSE, /* partial_inplace */ |
d006db6c | 1674 | 0, /* src_mask */ |
c061c2d8 | 1675 | 0xfffc, /* dst_mask */ |
b34976b6 | 1676 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1677 | |
411e1bfb AM |
1678 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
1679 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
1680 | 16, /* rightshift */ | |
5bd4f169 AM |
1681 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1682 | 16, /* bitsize */ | |
b34976b6 | 1683 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1684 | 0, /* bitpos */ |
1685 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1686 | ppc64_elf_unhandled_reloc, /* special_function */ |
1687 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
b34976b6 | 1688 | FALSE, /* partial_inplace */ |
d006db6c | 1689 | 0, /* src_mask */ |
411e1bfb | 1690 | 0xffff, /* dst_mask */ |
b34976b6 | 1691 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1692 | |
411e1bfb AM |
1693 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1694 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
1695 | 16, /* rightshift */ | |
1696 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1697 | 16, /* bitsize */ | |
1698 | FALSE, /* pc_relative */ | |
1699 | 0, /* bitpos */ | |
1700 | complain_overflow_dont, /* complain_on_overflow */ | |
1701 | ppc64_elf_unhandled_reloc, /* special_function */ | |
1702 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
1703 | FALSE, /* partial_inplace */ | |
1704 | 0, /* src_mask */ | |
1705 | 0xffff, /* dst_mask */ | |
1706 | FALSE), /* pcrel_offset */ | |
1707 | ||
1708 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
1709 | offset to the entry relative to the TOC base (r2). */ | |
1710 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
5bd4f169 AM |
1711 | 0, /* rightshift */ |
1712 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1713 | 16, /* bitsize */ | |
b34976b6 | 1714 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1715 | 0, /* bitpos */ |
1716 | complain_overflow_signed, /* complain_on_overflow */ | |
411e1bfb AM |
1717 | ppc64_elf_unhandled_reloc, /* special_function */ |
1718 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
b34976b6 | 1719 | FALSE, /* partial_inplace */ |
d006db6c | 1720 | 0, /* src_mask */ |
411e1bfb | 1721 | 0xffff, /* dst_mask */ |
b34976b6 | 1722 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1723 | |
411e1bfb AM |
1724 | /* Like GOT_TPREL16_DS, but no overflow. */ |
1725 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
5bd4f169 AM |
1726 | 0, /* rightshift */ |
1727 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1728 | 16, /* bitsize */ | |
b34976b6 | 1729 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1730 | 0, /* bitpos */ |
1731 | complain_overflow_dont, /* complain_on_overflow */ | |
411e1bfb AM |
1732 | ppc64_elf_unhandled_reloc, /* special_function */ |
1733 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
b34976b6 | 1734 | FALSE, /* partial_inplace */ |
d006db6c | 1735 | 0, /* src_mask */ |
411e1bfb | 1736 | 0xffff, /* dst_mask */ |
b34976b6 | 1737 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1738 | |
411e1bfb AM |
1739 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
1740 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
1741 | 16, /* rightshift */ | |
5bd4f169 AM |
1742 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1743 | 16, /* bitsize */ | |
b34976b6 | 1744 | FALSE, /* pc_relative */ |
5bd4f169 | 1745 | 0, /* bitpos */ |
411e1bfb | 1746 | complain_overflow_dont, /* complain_on_overflow */ |
805fc799 | 1747 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1748 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
b34976b6 | 1749 | FALSE, /* partial_inplace */ |
d006db6c | 1750 | 0, /* src_mask */ |
411e1bfb | 1751 | 0xffff, /* dst_mask */ |
b34976b6 | 1752 | FALSE), /* pcrel_offset */ |
5bd4f169 | 1753 | |
411e1bfb AM |
1754 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
1755 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
1756 | 16, /* rightshift */ | |
5bd4f169 AM |
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_dont, /* complain_on_overflow */ | |
805fc799 | 1762 | ppc64_elf_unhandled_reloc, /* special_function */ |
411e1bfb | 1763 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
b34976b6 | 1764 | FALSE, /* partial_inplace */ |
d006db6c | 1765 | 0, /* src_mask */ |
411e1bfb | 1766 | 0xffff, /* dst_mask */ |
b34976b6 | 1767 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1768 | |
1769 | /* GNU extension to record C++ vtable hierarchy. */ | |
1770 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
1771 | 0, /* rightshift */ | |
1772 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1773 | 0, /* bitsize */ | |
b34976b6 | 1774 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1775 | 0, /* bitpos */ |
1776 | complain_overflow_dont, /* complain_on_overflow */ | |
1777 | NULL, /* special_function */ | |
1778 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
b34976b6 | 1779 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1780 | 0, /* src_mask */ |
1781 | 0, /* dst_mask */ | |
b34976b6 | 1782 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1783 | |
1784 | /* GNU extension to record C++ vtable member usage. */ | |
1785 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
1786 | 0, /* rightshift */ | |
1787 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1788 | 0, /* bitsize */ | |
b34976b6 | 1789 | FALSE, /* pc_relative */ |
5bd4f169 AM |
1790 | 0, /* bitpos */ |
1791 | complain_overflow_dont, /* complain_on_overflow */ | |
1792 | NULL, /* special_function */ | |
1793 | "R_PPC64_GNU_VTENTRY", /* name */ | |
b34976b6 | 1794 | FALSE, /* partial_inplace */ |
5bd4f169 AM |
1795 | 0, /* src_mask */ |
1796 | 0, /* dst_mask */ | |
b34976b6 | 1797 | FALSE), /* pcrel_offset */ |
5bd4f169 AM |
1798 | }; |
1799 | ||
1800 | \f | |
1801 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
1802 | be done. */ | |
1803 | ||
1804 | static void | |
1805 | ppc_howto_init () | |
1806 | { | |
1807 | unsigned int i, type; | |
1808 | ||
1809 | for (i = 0; | |
1810 | i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]); | |
1811 | i++) | |
1812 | { | |
1813 | type = ppc64_elf_howto_raw[i].type; | |
1814 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
1815 | / sizeof (ppc64_elf_howto_table[0]))); | |
1816 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; | |
1817 | } | |
1818 | } | |
1819 | ||
1820 | static reloc_howto_type * | |
1821 | ppc64_elf_reloc_type_lookup (abfd, code) | |
1822 | bfd *abfd ATTRIBUTE_UNUSED; | |
1823 | bfd_reloc_code_real_type code; | |
1824 | { | |
411e1bfb | 1825 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
5bd4f169 AM |
1826 | |
1827 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
1828 | /* Initialize howto table if needed. */ | |
1829 | ppc_howto_init (); | |
1830 | ||
1831 | switch ((int) code) | |
1832 | { | |
1833 | default: | |
1834 | return (reloc_howto_type *) NULL; | |
1835 | ||
411e1bfb AM |
1836 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
1837 | break; | |
1838 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
1839 | break; | |
1840 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
1841 | break; | |
1842 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
1843 | break; | |
1844 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
1845 | break; | |
1846 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
1847 | break; | |
1848 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; | |
5bd4f169 | 1849 | break; |
411e1bfb | 1850 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
5bd4f169 | 1851 | break; |
411e1bfb | 1852 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
5bd4f169 | 1853 | break; |
411e1bfb | 1854 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
5bd4f169 | 1855 | break; |
411e1bfb | 1856 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
5bd4f169 | 1857 | break; |
411e1bfb | 1858 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
5bd4f169 | 1859 | break; |
411e1bfb | 1860 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
5bd4f169 | 1861 | break; |
411e1bfb | 1862 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
5bd4f169 | 1863 | break; |
411e1bfb | 1864 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
5bd4f169 | 1865 | break; |
411e1bfb | 1866 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
5bd4f169 | 1867 | break; |
411e1bfb | 1868 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
5bd4f169 | 1869 | break; |
411e1bfb | 1870 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
5bd4f169 | 1871 | break; |
411e1bfb | 1872 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
5bd4f169 | 1873 | break; |
411e1bfb | 1874 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
5bd4f169 | 1875 | break; |
411e1bfb | 1876 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
5bd4f169 | 1877 | break; |
411e1bfb | 1878 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
5bd4f169 | 1879 | break; |
411e1bfb | 1880 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
5bd4f169 | 1881 | break; |
411e1bfb | 1882 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
5bd4f169 | 1883 | break; |
411e1bfb | 1884 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
5bd4f169 | 1885 | break; |
411e1bfb | 1886 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
5bd4f169 | 1887 | break; |
411e1bfb | 1888 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
5bd4f169 | 1889 | break; |
411e1bfb | 1890 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
5bd4f169 | 1891 | break; |
411e1bfb | 1892 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
5bd4f169 | 1893 | break; |
411e1bfb | 1894 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
5bd4f169 | 1895 | break; |
411e1bfb | 1896 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
5bd4f169 | 1897 | break; |
411e1bfb | 1898 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
5bd4f169 | 1899 | break; |
411e1bfb | 1900 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
5bd4f169 | 1901 | break; |
411e1bfb | 1902 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
5bd4f169 | 1903 | break; |
411e1bfb | 1904 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
5bd4f169 | 1905 | break; |
411e1bfb | 1906 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
5bd4f169 | 1907 | break; |
411e1bfb | 1908 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
5bd4f169 | 1909 | break; |
411e1bfb | 1910 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
5bd4f169 | 1911 | break; |
411e1bfb | 1912 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
5bd4f169 | 1913 | break; |
411e1bfb | 1914 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
5bd4f169 | 1915 | break; |
411e1bfb | 1916 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
5bd4f169 | 1917 | break; |
411e1bfb | 1918 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
5bd4f169 | 1919 | break; |
411e1bfb | 1920 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
5bd4f169 | 1921 | break; |
411e1bfb | 1922 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
5bd4f169 | 1923 | break; |
411e1bfb | 1924 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
5bd4f169 | 1925 | break; |
411e1bfb | 1926 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
5bd4f169 | 1927 | break; |
411e1bfb | 1928 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
5bd4f169 | 1929 | break; |
411e1bfb | 1930 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
5bd4f169 | 1931 | break; |
411e1bfb | 1932 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
5bd4f169 | 1933 | break; |
411e1bfb | 1934 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
5bd4f169 | 1935 | break; |
411e1bfb | 1936 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
5bd4f169 | 1937 | break; |
411e1bfb | 1938 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
5bd4f169 | 1939 | break; |
411e1bfb | 1940 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
5bd4f169 | 1941 | break; |
411e1bfb | 1942 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
5bd4f169 | 1943 | break; |
411e1bfb | 1944 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
5bd4f169 | 1945 | break; |
411e1bfb | 1946 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
5bd4f169 | 1947 | break; |
411e1bfb | 1948 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
5bd4f169 | 1949 | break; |
411e1bfb | 1950 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
5bd4f169 | 1951 | break; |
411e1bfb | 1952 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
5bd4f169 | 1953 | break; |
411e1bfb | 1954 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
5bd4f169 | 1955 | break; |
411e1bfb | 1956 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
5bd4f169 | 1957 | break; |
411e1bfb | 1958 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
5bd4f169 | 1959 | break; |
411e1bfb | 1960 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
5bd4f169 | 1961 | break; |
411e1bfb | 1962 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
5bd4f169 | 1963 | break; |
411e1bfb | 1964 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
5bd4f169 | 1965 | break; |
411e1bfb | 1966 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
5bd4f169 | 1967 | break; |
411e1bfb AM |
1968 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
1969 | break; | |
1970 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
1971 | break; | |
1972 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
1973 | break; | |
1974 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; | |
1975 | break; | |
1976 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; | |
1977 | break; | |
1978 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
1979 | break; | |
1980 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
1981 | break; | |
1982 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
1983 | break; | |
1984 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
1985 | break; | |
1986 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
1987 | break; | |
1988 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
1989 | break; | |
1990 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
1991 | break; | |
1992 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
1993 | break; | |
1994 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
1995 | break; | |
1996 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
1997 | break; | |
1998 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
1999 | break; | |
2000 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
2001 | break; | |
2002 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
2003 | break; | |
2004 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
2005 | break; | |
2006 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
2007 | break; | |
2008 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
2009 | break; | |
2010 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
2011 | break; | |
2012 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
2013 | break; | |
2014 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
2015 | break; | |
2016 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
2017 | break; | |
2018 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
2019 | break; | |
2020 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
2021 | break; | |
2022 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
2023 | break; | |
2024 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
2025 | break; | |
2026 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
2027 | break; | |
2028 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
2029 | break; | |
2030 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
2031 | break; | |
2032 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
2033 | break; | |
2034 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; | |
2035 | break; | |
2036 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
5bd4f169 AM |
2037 | break; |
2038 | } | |
2039 | ||
411e1bfb | 2040 | return ppc64_elf_howto_table[(int) r]; |
5bd4f169 AM |
2041 | }; |
2042 | ||
2043 | /* Set the howto pointer for a PowerPC ELF reloc. */ | |
2044 | ||
2045 | static void | |
2046 | ppc64_elf_info_to_howto (abfd, cache_ptr, dst) | |
2047 | bfd *abfd ATTRIBUTE_UNUSED; | |
2048 | arelent *cache_ptr; | |
947216bf | 2049 | Elf_Internal_Rela *dst; |
5bd4f169 | 2050 | { |
65f38f15 AM |
2051 | unsigned int type; |
2052 | ||
ef60b7ff | 2053 | /* Initialize howto table if needed. */ |
5bd4f169 | 2054 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
2055 | ppc_howto_init (); |
2056 | ||
65f38f15 AM |
2057 | type = ELF64_R_TYPE (dst->r_info); |
2058 | BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table) | |
2059 | / sizeof (ppc64_elf_howto_table[0]))); | |
2060 | cache_ptr->howto = ppc64_elf_howto_table[type]; | |
5bd4f169 AM |
2061 | } |
2062 | ||
04c9666a | 2063 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
5bd4f169 AM |
2064 | |
2065 | static bfd_reloc_status_type | |
805fc799 AM |
2066 | ppc64_elf_ha_reloc (abfd, reloc_entry, symbol, data, |
2067 | input_section, output_bfd, error_message) | |
2068 | bfd *abfd; | |
5bd4f169 AM |
2069 | arelent *reloc_entry; |
2070 | asymbol *symbol; | |
805fc799 | 2071 | PTR data; |
5bd4f169 AM |
2072 | asection *input_section; |
2073 | bfd *output_bfd; | |
805fc799 | 2074 | char **error_message; |
5bd4f169 | 2075 | { |
805fc799 AM |
2076 | /* If this is a relocatable link (output_bfd test tells us), just |
2077 | call the generic function. Any adjustment will be done at final | |
2078 | link time. */ | |
2079 | if (output_bfd != NULL) | |
cedb70c5 | 2080 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2081 | input_section, output_bfd, error_message); |
2082 | ||
2083 | /* Adjust the addend for sign extension of the low 16 bits. | |
2084 | We won't actually be using the low 16 bits, so trashing them | |
2085 | doesn't matter. */ | |
2086 | reloc_entry->addend += 0x8000; | |
2087 | return bfd_reloc_continue; | |
2088 | } | |
5bd4f169 | 2089 | |
805fc799 AM |
2090 | static bfd_reloc_status_type |
2091 | ppc64_elf_brtaken_reloc (abfd, reloc_entry, symbol, data, | |
2092 | input_section, output_bfd, error_message) | |
2093 | bfd *abfd; | |
2094 | arelent *reloc_entry; | |
2095 | asymbol *symbol; | |
2096 | PTR data; | |
2097 | asection *input_section; | |
2098 | bfd *output_bfd; | |
2099 | char **error_message; | |
2100 | { | |
2101 | long insn; | |
04c9666a | 2102 | enum elf_ppc64_reloc_type r_type; |
805fc799 AM |
2103 | bfd_size_type octets; |
2104 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ | |
b34976b6 | 2105 | bfd_boolean is_power4 = FALSE; |
805fc799 AM |
2106 | |
2107 | /* If this is a relocatable link (output_bfd test tells us), just | |
2108 | call the generic function. Any adjustment will be done at final | |
2109 | link time. */ | |
5bd4f169 | 2110 | if (output_bfd != NULL) |
cedb70c5 | 2111 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2112 | input_section, output_bfd, error_message); |
2113 | ||
2114 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2115 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2116 | insn &= ~(0x01 << 21); | |
04c9666a | 2117 | r_type = (enum elf_ppc64_reloc_type) reloc_entry->howto->type; |
805fc799 AM |
2118 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
2119 | || r_type == R_PPC64_REL14_BRTAKEN) | |
cedb70c5 | 2120 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
805fc799 AM |
2121 | |
2122 | if (is_power4) | |
5bd4f169 | 2123 | { |
805fc799 AM |
2124 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
2125 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
2126 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
2127 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
2128 | insn |= 0x02 << 21; | |
2129 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
2130 | insn |= 0x08 << 21; | |
2131 | else | |
2132 | return bfd_reloc_continue; | |
5bd4f169 | 2133 | } |
805fc799 AM |
2134 | else |
2135 | { | |
2136 | bfd_vma target = 0; | |
2137 | bfd_vma from; | |
5bd4f169 | 2138 | |
805fc799 AM |
2139 | if (!bfd_is_com_section (symbol->section)) |
2140 | target = symbol->value; | |
2141 | target += symbol->section->output_section->vma; | |
2142 | target += symbol->section->output_offset; | |
2143 | target += reloc_entry->addend; | |
5bd4f169 | 2144 | |
805fc799 AM |
2145 | from = (reloc_entry->address |
2146 | + input_section->output_offset | |
2147 | + input_section->output_section->vma); | |
5bd4f169 | 2148 | |
805fc799 AM |
2149 | /* Invert 'y' bit if not the default. */ |
2150 | if ((bfd_signed_vma) (target - from) < 0) | |
2151 | insn ^= 0x01 << 21; | |
2152 | } | |
2153 | bfd_put_32 (abfd, (bfd_vma) insn, (bfd_byte *) data + octets); | |
2154 | return bfd_reloc_continue; | |
2155 | } | |
5bd4f169 | 2156 | |
805fc799 AM |
2157 | static bfd_reloc_status_type |
2158 | ppc64_elf_sectoff_reloc (abfd, reloc_entry, symbol, data, | |
2159 | input_section, output_bfd, error_message) | |
2160 | bfd *abfd; | |
2161 | arelent *reloc_entry; | |
2162 | asymbol *symbol; | |
2163 | PTR data; | |
2164 | asection *input_section; | |
2165 | bfd *output_bfd; | |
2166 | char **error_message; | |
2167 | { | |
2168 | /* If this is a relocatable link (output_bfd test tells us), just | |
2169 | call the generic function. Any adjustment will be done at final | |
2170 | link time. */ | |
2171 | if (output_bfd != NULL) | |
cedb70c5 | 2172 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 | 2173 | input_section, output_bfd, error_message); |
5bd4f169 | 2174 | |
805fc799 AM |
2175 | /* Subtract the symbol section base address. */ |
2176 | reloc_entry->addend -= symbol->section->output_section->vma; | |
5bd4f169 AM |
2177 | return bfd_reloc_continue; |
2178 | } | |
2179 | ||
805fc799 AM |
2180 | static bfd_reloc_status_type |
2181 | ppc64_elf_sectoff_ha_reloc (abfd, reloc_entry, symbol, data, | |
2182 | input_section, output_bfd, error_message) | |
2183 | bfd *abfd; | |
2184 | arelent *reloc_entry; | |
2185 | asymbol *symbol; | |
2186 | PTR data; | |
2187 | asection *input_section; | |
2188 | bfd *output_bfd; | |
2189 | char **error_message; | |
2190 | { | |
2191 | /* If this is a relocatable link (output_bfd test tells us), just | |
2192 | call the generic function. Any adjustment will be done at final | |
2193 | link time. */ | |
2194 | if (output_bfd != NULL) | |
cedb70c5 | 2195 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2196 | input_section, output_bfd, error_message); |
2197 | ||
2198 | /* Subtract the symbol section base address. */ | |
2199 | reloc_entry->addend -= symbol->section->output_section->vma; | |
2200 | ||
2201 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2202 | reloc_entry->addend += 0x8000; | |
2203 | return bfd_reloc_continue; | |
2204 | } | |
2205 | ||
2206 | static bfd_reloc_status_type | |
2207 | ppc64_elf_toc_reloc (abfd, reloc_entry, symbol, data, | |
2208 | input_section, output_bfd, error_message) | |
2209 | bfd *abfd; | |
2210 | arelent *reloc_entry; | |
2211 | asymbol *symbol; | |
2212 | PTR data; | |
2213 | asection *input_section; | |
2214 | bfd *output_bfd; | |
2215 | char **error_message; | |
2216 | { | |
2217 | bfd_vma TOCstart; | |
2218 | ||
2219 | /* If this is a relocatable link (output_bfd test tells us), just | |
2220 | call the generic function. Any adjustment will be done at final | |
2221 | link time. */ | |
2222 | if (output_bfd != NULL) | |
cedb70c5 | 2223 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2224 | input_section, output_bfd, error_message); |
2225 | ||
2226 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2227 | if (TOCstart == 0) | |
2228 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2229 | ||
2230 | /* Subtract the TOC base address. */ | |
2231 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2232 | return bfd_reloc_continue; | |
2233 | } | |
2234 | ||
2235 | static bfd_reloc_status_type | |
2236 | ppc64_elf_toc_ha_reloc (abfd, reloc_entry, symbol, data, | |
2237 | input_section, output_bfd, error_message) | |
2238 | bfd *abfd; | |
2239 | arelent *reloc_entry; | |
2240 | asymbol *symbol; | |
2241 | PTR data; | |
2242 | asection *input_section; | |
2243 | bfd *output_bfd; | |
2244 | char **error_message; | |
2245 | { | |
2246 | bfd_vma TOCstart; | |
2247 | ||
2248 | /* If this is a relocatable link (output_bfd test tells us), just | |
2249 | call the generic function. Any adjustment will be done at final | |
2250 | link time. */ | |
2251 | if (output_bfd != NULL) | |
cedb70c5 | 2252 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2253 | input_section, output_bfd, error_message); |
2254 | ||
2255 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
2256 | if (TOCstart == 0) | |
2257 | TOCstart = ppc64_elf_toc (input_section->output_section->owner); | |
2258 | ||
2259 | /* Subtract the TOC base address. */ | |
2260 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
2261 | ||
2262 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
2263 | reloc_entry->addend += 0x8000; | |
2264 | return bfd_reloc_continue; | |
2265 | } | |
2266 | ||
2267 | static bfd_reloc_status_type | |
2268 | ppc64_elf_toc64_reloc (abfd, reloc_entry, symbol, data, | |
2269 | input_section, output_bfd, error_message) | |
2270 | bfd *abfd; | |
2271 | arelent *reloc_entry; | |
2272 | asymbol *symbol; | |
2273 | PTR data; | |
2274 | asection *input_section; | |
2275 | bfd *output_bfd; | |
2276 | char **error_message; | |
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 | |
2298 | ppc64_elf_unhandled_reloc (abfd, reloc_entry, symbol, data, | |
2299 | input_section, output_bfd, error_message) | |
2300 | bfd *abfd; | |
2301 | arelent *reloc_entry; | |
2302 | asymbol *symbol; | |
2303 | PTR data; | |
2304 | asection *input_section; | |
2305 | bfd *output_bfd; | |
2306 | char **error_message; | |
2307 | { | |
2308 | /* If this is a relocatable link (output_bfd test tells us), just | |
2309 | call the generic function. Any adjustment will be done at final | |
2310 | link time. */ | |
2311 | if (output_bfd != NULL) | |
cedb70c5 | 2312 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
805fc799 AM |
2313 | input_section, output_bfd, error_message); |
2314 | ||
2315 | if (error_message != NULL) | |
2316 | { | |
2317 | static char buf[60]; | |
2318 | sprintf (buf, "generic linker can't handle %s", | |
2319 | reloc_entry->howto->name); | |
2320 | *error_message = buf; | |
2321 | } | |
2322 | return bfd_reloc_dangerous; | |
2323 | } | |
2324 | ||
feee612b AM |
2325 | /* Fix bad default arch selected for a 64 bit input bfd when the |
2326 | default is 32 bit. */ | |
2327 | ||
b34976b6 | 2328 | static bfd_boolean |
feee612b AM |
2329 | ppc64_elf_object_p (abfd) |
2330 | bfd *abfd; | |
2331 | { | |
2332 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32) | |
2333 | { | |
2334 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
2335 | ||
2336 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
2337 | { | |
2338 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
2339 | abfd->arch_info = abfd->arch_info->next; | |
2340 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
2341 | } | |
2342 | } | |
b34976b6 | 2343 | return TRUE; |
feee612b AM |
2344 | } |
2345 | ||
5bd4f169 AM |
2346 | /* Merge backend specific data from an object file to the output |
2347 | object file when linking. */ | |
2f6d9989 | 2348 | |
b34976b6 | 2349 | static bfd_boolean |
5bd4f169 AM |
2350 | ppc64_elf_merge_private_bfd_data (ibfd, obfd) |
2351 | bfd *ibfd; | |
2352 | bfd *obfd; | |
2353 | { | |
5bd4f169 AM |
2354 | /* Check if we have the same endianess. */ |
2355 | if (ibfd->xvec->byteorder != obfd->xvec->byteorder | |
87e226ce | 2356 | && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN |
5bd4f169 AM |
2357 | && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
2358 | { | |
2359 | const char *msg; | |
2360 | ||
2361 | if (bfd_big_endian (ibfd)) | |
2362 | msg = _("%s: compiled for a big endian system and target is little endian"); | |
2363 | else | |
2364 | msg = _("%s: compiled for a little endian system and target is big endian"); | |
2365 | ||
8f615d07 | 2366 | (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd)); |
5bd4f169 AM |
2367 | |
2368 | bfd_set_error (bfd_error_wrong_format); | |
b34976b6 | 2369 | return FALSE; |
5bd4f169 AM |
2370 | } |
2371 | ||
b34976b6 | 2372 | return TRUE; |
5bd4f169 | 2373 | } |
f0abc2a1 AM |
2374 | |
2375 | struct _ppc64_elf_section_data | |
2376 | { | |
2377 | struct bfd_elf_section_data elf; | |
411e1bfb AM |
2378 | |
2379 | /* An array with one entry for each opd function descriptor. */ | |
f0abc2a1 AM |
2380 | union |
2381 | { | |
411e1bfb | 2382 | /* Points to the function code section for local opd entries. */ |
f0abc2a1 | 2383 | asection **func_sec; |
411e1bfb | 2384 | /* After editing .opd, adjust references to opd local syms. */ |
f0abc2a1 AM |
2385 | long *adjust; |
2386 | } opd; | |
411e1bfb AM |
2387 | |
2388 | /* An array for toc sections, indexed by offset/8. | |
2389 | Specifies the relocation symbol index used at a given toc offset. */ | |
2390 | unsigned *t_symndx; | |
f0abc2a1 AM |
2391 | }; |
2392 | ||
2393 | #define ppc64_elf_section_data(sec) \ | |
411e1bfb | 2394 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
f0abc2a1 AM |
2395 | |
2396 | static bfd_boolean | |
2397 | ppc64_elf_new_section_hook (abfd, sec) | |
2398 | bfd *abfd; | |
2399 | asection *sec; | |
2400 | { | |
2401 | struct _ppc64_elf_section_data *sdata; | |
2402 | bfd_size_type amt = sizeof (*sdata); | |
2403 | ||
2404 | sdata = (struct _ppc64_elf_section_data *) bfd_zalloc (abfd, amt); | |
2405 | if (sdata == NULL) | |
2406 | return FALSE; | |
2407 | sec->used_by_bfd = (PTR) sdata; | |
2408 | ||
2409 | return _bfd_elf_new_section_hook (abfd, sec); | |
2410 | } | |
5bd4f169 | 2411 | \f |
65f38f15 AM |
2412 | /* The following functions are specific to the ELF linker, while |
2413 | functions above are used generally. Those named ppc64_elf_* are | |
2414 | called by the main ELF linker code. They appear in this file more | |
2415 | or less in the order in which they are called. eg. | |
2416 | ppc64_elf_check_relocs is called early in the link process, | |
2417 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
e86ce104 AM |
2418 | called. |
2419 | ||
2420 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
2421 | functions have both a function code symbol and a function descriptor | |
2422 | symbol. A call to foo in a relocatable object file looks like: | |
2423 | ||
2424 | . .text | |
2425 | . x: | |
2426 | . bl .foo | |
2427 | . nop | |
2428 | ||
2429 | The function definition in another object file might be: | |
2430 | ||
2431 | . .section .opd | |
2432 | . foo: .quad .foo | |
2433 | . .quad .TOC.@tocbase | |
2434 | . .quad 0 | |
2435 | . | |
2436 | . .text | |
2437 | . .foo: blr | |
2438 | ||
2439 | When the linker resolves the call during a static link, the branch | |
2440 | unsurprisingly just goes to .foo and the .opd information is unused. | |
2441 | If the function definition is in a shared library, things are a little | |
2442 | different: The call goes via a plt call stub, the opd information gets | |
2443 | copied to the plt, and the linker patches the nop. | |
2444 | ||
2445 | . x: | |
2446 | . bl .foo_stub | |
2447 | . ld 2,40(1) | |
2448 | . | |
2449 | . | |
2450 | . .foo_stub: | |
2451 | . addis 12,2,Lfoo@toc@ha # in practice, the call stub | |
411e1bfb | 2452 | . addi 12,12,Lfoo@toc@l # is slightly optimized, but |
e86ce104 AM |
2453 | . std 2,40(1) # this is the general idea |
2454 | . ld 11,0(12) | |
2455 | . ld 2,8(12) | |
2456 | . mtctr 11 | |
2457 | . ld 11,16(12) | |
2458 | . bctr | |
2459 | . | |
2460 | . .section .plt | |
2461 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
2462 | ||
2463 | The "reloc ()" notation is supposed to indicate that the linker emits | |
2464 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
2465 | copying. | |
2466 | ||
2467 | What are the difficulties here? Well, firstly, the relocations | |
2468 | examined by the linker in check_relocs are against the function code | |
2469 | sym .foo, while the dynamic relocation in the plt is emitted against | |
2470 | the function descriptor symbol, foo. Somewhere along the line, we need | |
2471 | to carefully copy dynamic link information from one symbol to the other. | |
2472 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
2473 | symbol as is normal for most other backends. We need foo dynamic | |
2474 | instead, at least for an application final link. However, when | |
2475 | creating a shared library containing foo, we need to have both symbols | |
2476 | dynamic so that references to .foo are satisfied during the early | |
2477 | stages of linking. Otherwise the linker might decide to pull in a | |
41bd81ab | 2478 | definition from some other object, eg. a static library. */ |
65f38f15 AM |
2479 | |
2480 | /* The linker needs to keep track of the number of relocs that it | |
2481 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2482 | This is so that it can later discard them if they are found to be | |
2483 | unnecessary. We store the information in a field extending the | |
2484 | regular ELF linker hash table. */ | |
2485 | ||
2486 | struct ppc_dyn_relocs | |
2487 | { | |
2488 | struct ppc_dyn_relocs *next; | |
2489 | ||
2490 | /* The input section of the reloc. */ | |
2491 | asection *sec; | |
2492 | ||
2493 | /* Total number of relocs copied for the input section. */ | |
2494 | bfd_size_type count; | |
2495 | ||
2496 | /* Number of pc-relative relocs copied for the input section. */ | |
2497 | bfd_size_type pc_count; | |
2498 | }; | |
2499 | ||
411e1bfb AM |
2500 | /* Track GOT entries needed for a given symbol. We might need more |
2501 | than one got entry per symbol. */ | |
2502 | struct got_entry | |
2503 | { | |
2504 | struct got_entry *next; | |
2505 | ||
e7b938ca | 2506 | /* The symbol addend that we'll be placing in the GOT. */ |
411e1bfb AM |
2507 | bfd_vma addend; |
2508 | ||
e7b938ca | 2509 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ |
411e1bfb AM |
2510 | union |
2511 | { | |
2512 | bfd_signed_vma refcount; | |
2513 | bfd_vma offset; | |
2514 | } got; | |
2515 | ||
e7b938ca AM |
2516 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, |
2517 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
411e1bfb AM |
2518 | char tls_type; |
2519 | }; | |
2520 | ||
2521 | /* The same for PLT. */ | |
2522 | struct plt_entry | |
2523 | { | |
2524 | struct plt_entry *next; | |
2525 | ||
2526 | bfd_vma addend; | |
2527 | ||
2528 | union | |
2529 | { | |
2530 | bfd_signed_vma refcount; | |
2531 | bfd_vma offset; | |
2532 | } plt; | |
2533 | }; | |
2534 | ||
65f38f15 | 2535 | /* Of those relocs that might be copied as dynamic relocs, this macro |
58ac9f71 AM |
2536 | selects those that must be copied when linking a shared library, |
2537 | even when the symbol is local. */ | |
65f38f15 | 2538 | |
411e1bfb | 2539 | #define MUST_BE_DYN_RELOC(RTYPE) \ |
805fc799 AM |
2540 | ((RTYPE) != R_PPC64_REL32 \ |
2541 | && (RTYPE) != R_PPC64_REL64 \ | |
04c9666a | 2542 | && (RTYPE) != R_PPC64_REL30) |
65f38f15 | 2543 | |
f4656909 AM |
2544 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2545 | copying dynamic variables from a shared lib into an app's dynbss | |
2546 | section, and instead use a dynamic relocation to point into the | |
2547 | shared lib. */ | |
a23b6845 | 2548 | #define ELIMINATE_COPY_RELOCS 1 |
f4656909 | 2549 | |
721956f4 AM |
2550 | /* Section name for stubs is the associated section name plus this |
2551 | string. */ | |
2552 | #define STUB_SUFFIX ".stub" | |
2553 | ||
2554 | /* Linker stubs. | |
2555 | ppc_stub_long_branch: | |
2556 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
2557 | destination, but a 24 bit branch in a stub section will reach. | |
2558 | . b dest | |
2559 | ||
2560 | ppc_stub_plt_branch: | |
2561 | Similar to the above, but a 24 bit branch in the stub section won't | |
2562 | reach its destination. | |
87e226ce AM |
2563 | . addis %r12,%r2,xxx@toc@ha |
2564 | . ld %r11,xxx@toc@l(%r12) | |
721956f4 AM |
2565 | . mtctr %r11 |
2566 | . bctr | |
2567 | ||
2568 | ppc_stub_plt_call: | |
2569 | Used to call a function in a shared library. | |
87e226ce | 2570 | . addis %r12,%r2,xxx@toc@ha |
721956f4 | 2571 | . std %r2,40(%r1) |
87e226ce AM |
2572 | . ld %r11,xxx+0@toc@l(%r12) |
2573 | . ld %r2,xxx+8@toc@l(%r12) | |
721956f4 | 2574 | . mtctr %r11 |
87e226ce | 2575 | . ld %r11,xxx+16@toc@l(%r12) |
721956f4 AM |
2576 | . bctr |
2577 | */ | |
2578 | ||
2579 | enum ppc_stub_type { | |
2580 | ppc_stub_none, | |
2581 | ppc_stub_long_branch, | |
2582 | ppc_stub_plt_branch, | |
2583 | ppc_stub_plt_call | |
2584 | }; | |
2585 | ||
2586 | struct ppc_stub_hash_entry { | |
2587 | ||
2588 | /* Base hash table entry structure. */ | |
2589 | struct bfd_hash_entry root; | |
2590 | ||
2591 | /* The stub section. */ | |
2592 | asection *stub_sec; | |
2593 | ||
2594 | /* Offset within stub_sec of the beginning of this stub. */ | |
2595 | bfd_vma stub_offset; | |
2596 | ||
2597 | /* Given the symbol's value and its section we can determine its final | |
2598 | value when building the stubs (so the stub knows where to jump. */ | |
2599 | bfd_vma target_value; | |
2600 | asection *target_section; | |
2601 | ||
2602 | enum ppc_stub_type stub_type; | |
2603 | ||
2604 | /* The symbol table entry, if any, that this was derived from. */ | |
2605 | struct ppc_link_hash_entry *h; | |
2606 | ||
411e1bfb AM |
2607 | /* And the reloc addend that this was derived from. */ |
2608 | bfd_vma addend; | |
2609 | ||
721956f4 AM |
2610 | /* Where this stub is being called from, or, in the case of combined |
2611 | stub sections, the first input section in the group. */ | |
2612 | asection *id_sec; | |
2613 | }; | |
2614 | ||
2615 | struct ppc_branch_hash_entry { | |
2616 | ||
2617 | /* Base hash table entry structure. */ | |
2618 | struct bfd_hash_entry root; | |
2619 | ||
2620 | /* Offset within .branch_lt. */ | |
2621 | unsigned int offset; | |
2622 | ||
2623 | /* Generation marker. */ | |
2624 | unsigned int iter; | |
2625 | }; | |
65f38f15 AM |
2626 | |
2627 | struct ppc_link_hash_entry | |
2628 | { | |
2629 | struct elf_link_hash_entry elf; | |
2630 | ||
721956f4 AM |
2631 | /* A pointer to the most recently used stub hash entry against this |
2632 | symbol. */ | |
2633 | struct ppc_stub_hash_entry *stub_cache; | |
2634 | ||
65f38f15 AM |
2635 | /* Track dynamic relocs copied for this symbol. */ |
2636 | struct ppc_dyn_relocs *dyn_relocs; | |
e86ce104 | 2637 | |
721956f4 AM |
2638 | /* Link between function code and descriptor symbols. */ |
2639 | struct elf_link_hash_entry *oh; | |
2640 | ||
e86ce104 AM |
2641 | /* Flag function code and descriptor symbols. */ |
2642 | unsigned int is_func:1; | |
2643 | unsigned int is_func_descriptor:1; | |
1e2f5b6e | 2644 | unsigned int is_entry:1; |
411e1bfb AM |
2645 | |
2646 | /* Contexts in which symbol is used in the GOT (or TOC). | |
e7b938ca AM |
2647 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
2648 | corresponding relocs are encountered during check_relocs. | |
2649 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2650 | indicate the corresponding GOT entry type is not needed. | |
2651 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
2652 | a TPREL one. We use a separate flag rather than setting TPREL | |
2653 | just for convenience in distinguishing the two cases. */ | |
2654 | #define TLS_GD 1 /* GD reloc. */ | |
2655 | #define TLS_LD 2 /* LD reloc. */ | |
2656 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2657 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2658 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2659 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
2660 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
2661 | char tls_mask; | |
65f38f15 AM |
2662 | }; |
2663 | ||
2664 | /* ppc64 ELF linker hash table. */ | |
2665 | ||
2666 | struct ppc_link_hash_table | |
2667 | { | |
2668 | struct elf_link_hash_table elf; | |
2669 | ||
721956f4 AM |
2670 | /* The stub hash table. */ |
2671 | struct bfd_hash_table stub_hash_table; | |
2672 | ||
2673 | /* Another hash table for plt_branch stubs. */ | |
2674 | struct bfd_hash_table branch_hash_table; | |
2675 | ||
2676 | /* Linker stub bfd. */ | |
2677 | bfd *stub_bfd; | |
2678 | ||
2679 | /* Linker call-backs. */ | |
2680 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2681 | void (*layout_sections_again) PARAMS ((void)); | |
2682 | ||
2683 | /* Array to keep track of which stub sections have been created, and | |
2684 | information on stub grouping. */ | |
2685 | struct map_stub { | |
2686 | /* This is the section to which stubs in the group will be attached. */ | |
2687 | asection *link_sec; | |
2688 | /* The stub section. */ | |
2689 | asection *stub_sec; | |
2690 | } *stub_group; | |
2691 | ||
2692 | /* Assorted information used by ppc64_elf_size_stubs. */ | |
721956f4 AM |
2693 | int top_index; |
2694 | asection **input_list; | |
721956f4 | 2695 | |
65f38f15 AM |
2696 | /* Short-cuts to get to dynamic linker sections. */ |
2697 | asection *sgot; | |
2698 | asection *srelgot; | |
2699 | asection *splt; | |
2700 | asection *srelplt; | |
2701 | asection *sdynbss; | |
2702 | asection *srelbss; | |
2703 | asection *sglink; | |
82bd7b59 | 2704 | asection *sfpr; |
721956f4 AM |
2705 | asection *sbrlt; |
2706 | asection *srelbrlt; | |
ec338859 | 2707 | |
411e1bfb AM |
2708 | /* Short-cut to first output tls section. */ |
2709 | asection *tls_sec; | |
2710 | ||
2711 | /* Shortcut to .__tls_get_addr. */ | |
2712 | struct elf_link_hash_entry *tls_get_addr; | |
2713 | ||
2714 | /* TLS local dynamic got entry handling. */ | |
2715 | union { | |
2716 | bfd_signed_vma refcount; | |
2717 | bfd_vma offset; | |
2718 | } tlsld_got; | |
2719 | ||
5d1634d7 | 2720 | /* Set on error. */ |
721956f4 AM |
2721 | unsigned int stub_error; |
2722 | ||
2723 | /* Flag set when small branches are detected. Used to | |
2724 | select suitable defaults for the stub group size. */ | |
2725 | unsigned int has_14bit_branch; | |
2726 | ||
805fc799 AM |
2727 | /* Set if we detect a reference undefined weak symbol. */ |
2728 | unsigned int have_undefweak; | |
2729 | ||
721956f4 AM |
2730 | /* Incremented every time we size stubs. */ |
2731 | unsigned int stub_iteration; | |
5d1634d7 | 2732 | |
ec338859 AM |
2733 | /* Small local sym to section mapping cache. */ |
2734 | struct sym_sec_cache sym_sec; | |
65f38f15 AM |
2735 | }; |
2736 | ||
721956f4 AM |
2737 | static struct bfd_hash_entry *stub_hash_newfunc |
2738 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2739 | static struct bfd_hash_entry *branch_hash_newfunc | |
2740 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2741 | static struct bfd_hash_entry *link_hash_newfunc | |
2742 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
2743 | static struct bfd_link_hash_table *ppc64_elf_link_hash_table_create | |
2744 | PARAMS ((bfd *)); | |
2745 | static void ppc64_elf_link_hash_table_free | |
2746 | PARAMS ((struct bfd_link_hash_table *)); | |
2747 | static char *ppc_stub_name | |
2748 | PARAMS ((const asection *, const asection *, | |
2749 | const struct ppc_link_hash_entry *, const Elf_Internal_Rela *)); | |
2750 | static struct ppc_stub_hash_entry *ppc_get_stub_entry | |
2751 | PARAMS ((const asection *, const asection *, struct elf_link_hash_entry *, | |
2752 | const Elf_Internal_Rela *, struct ppc_link_hash_table *)); | |
2753 | static struct ppc_stub_hash_entry *ppc_add_stub | |
2754 | PARAMS ((const char *, asection *, struct ppc_link_hash_table *)); | |
b34976b6 | 2755 | static bfd_boolean create_linkage_sections |
721956f4 | 2756 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2757 | static bfd_boolean create_got_section |
721956f4 | 2758 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2759 | static bfd_boolean ppc64_elf_create_dynamic_sections |
721956f4 AM |
2760 | PARAMS ((bfd *, struct bfd_link_info *)); |
2761 | static void ppc64_elf_copy_indirect_symbol | |
b48fa14c AM |
2762 | PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, |
2763 | struct elf_link_hash_entry *)); | |
411e1bfb AM |
2764 | static bfd_boolean update_local_sym_info |
2765 | PARAMS ((bfd *, Elf_Internal_Shdr *, unsigned long, bfd_vma, int)); | |
2766 | static bfd_boolean update_plt_info | |
2767 | PARAMS ((bfd *, struct ppc_link_hash_entry *, bfd_vma)); | |
b34976b6 | 2768 | static bfd_boolean ppc64_elf_check_relocs |
721956f4 AM |
2769 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
2770 | const Elf_Internal_Rela *)); | |
2771 | static asection * ppc64_elf_gc_mark_hook | |
1e2f5b6e AM |
2772 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
2773 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
b34976b6 | 2774 | static bfd_boolean ppc64_elf_gc_sweep_hook |
1e2f5b6e AM |
2775 | PARAMS ((bfd *, struct bfd_link_info *, asection *, |
2776 | const Elf_Internal_Rela *)); | |
b34976b6 | 2777 | static bfd_boolean func_desc_adjust |
721956f4 | 2778 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 2779 | static bfd_boolean ppc64_elf_func_desc_adjust |
721956f4 | 2780 | PARAMS ((bfd *, struct bfd_link_info *)); |
b34976b6 | 2781 | static bfd_boolean ppc64_elf_adjust_dynamic_symbol |
721956f4 AM |
2782 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
2783 | static void ppc64_elf_hide_symbol | |
b34976b6 | 2784 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean)); |
411e1bfb AM |
2785 | static bfd_boolean get_sym_h |
2786 | PARAMS ((struct elf_link_hash_entry **, Elf_Internal_Sym **, asection **, | |
2787 | char **, Elf_Internal_Sym **, unsigned long, bfd *)); | |
e7b938ca | 2788 | static int get_tls_mask |
411e1bfb | 2789 | PARAMS ((char **, Elf_Internal_Sym **, const Elf_Internal_Rela *, bfd *)); |
b34976b6 | 2790 | static bfd_boolean allocate_dynrelocs |
721956f4 | 2791 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
b34976b6 | 2792 | static bfd_boolean readonly_dynrelocs |
721956f4 AM |
2793 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
2794 | static enum elf_reloc_type_class ppc64_elf_reloc_type_class | |
2795 | PARAMS ((const Elf_Internal_Rela *)); | |
b34976b6 | 2796 | static bfd_boolean ppc64_elf_size_dynamic_sections |
721956f4 | 2797 | PARAMS ((bfd *, struct bfd_link_info *)); |
411e1bfb | 2798 | static enum ppc_stub_type ppc_type_of_stub |
721956f4 AM |
2799 | PARAMS ((asection *, const Elf_Internal_Rela *, |
2800 | struct ppc_link_hash_entry **, bfd_vma)); | |
2801 | static bfd_byte *build_plt_stub | |
2802 | PARAMS ((bfd *, bfd_byte *, int, int)); | |
b34976b6 | 2803 | static bfd_boolean ppc_build_one_stub |
721956f4 | 2804 | PARAMS ((struct bfd_hash_entry *, PTR)); |
b34976b6 | 2805 | static bfd_boolean ppc_size_one_stub |
721956f4 AM |
2806 | PARAMS ((struct bfd_hash_entry *, PTR)); |
2807 | static void group_sections | |
b34976b6 AM |
2808 | PARAMS ((struct ppc_link_hash_table *, bfd_size_type, bfd_boolean)); |
2809 | static bfd_boolean ppc64_elf_relocate_section | |
721956f4 AM |
2810 | PARAMS ((bfd *, struct bfd_link_info *info, bfd *, asection *, bfd_byte *, |
2811 | Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms, | |
2812 | asection **)); | |
b34976b6 | 2813 | static bfd_boolean ppc64_elf_finish_dynamic_symbol |
721956f4 AM |
2814 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, |
2815 | Elf_Internal_Sym *)); | |
b34976b6 | 2816 | static bfd_boolean ppc64_elf_finish_dynamic_sections |
721956f4 AM |
2817 | PARAMS ((bfd *, struct bfd_link_info *)); |
2818 | ||
65f38f15 AM |
2819 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
2820 | ||
2821 | #define ppc_hash_table(p) \ | |
2822 | ((struct ppc_link_hash_table *) ((p)->hash)) | |
2823 | ||
721956f4 AM |
2824 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
2825 | ((struct ppc_stub_hash_entry *) \ | |
2826 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2827 | ||
2828 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
2829 | ((struct ppc_branch_hash_entry *) \ | |
2830 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
2831 | ||
2832 | /* Create an entry in the stub hash table. */ | |
2833 | ||
2834 | static struct bfd_hash_entry * | |
2835 | stub_hash_newfunc (entry, table, string) | |
2836 | struct bfd_hash_entry *entry; | |
2837 | struct bfd_hash_table *table; | |
2838 | const char *string; | |
2839 | { | |
2840 | /* Allocate the structure if it has not already been allocated by a | |
2841 | subclass. */ | |
2842 | if (entry == NULL) | |
2843 | { | |
2844 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
2845 | if (entry == NULL) | |
2846 | return entry; | |
2847 | } | |
2848 | ||
2849 | /* Call the allocation method of the superclass. */ | |
2850 | entry = bfd_hash_newfunc (entry, table, string); | |
2851 | if (entry != NULL) | |
2852 | { | |
2853 | struct ppc_stub_hash_entry *eh; | |
2854 | ||
2855 | /* Initialize the local fields. */ | |
2856 | eh = (struct ppc_stub_hash_entry *) entry; | |
2857 | eh->stub_sec = NULL; | |
2858 | eh->stub_offset = 0; | |
2859 | eh->target_value = 0; | |
2860 | eh->target_section = NULL; | |
2861 | eh->stub_type = ppc_stub_none; | |
2862 | eh->h = NULL; | |
2863 | eh->id_sec = NULL; | |
2864 | } | |
2865 | ||
2866 | return entry; | |
2867 | } | |
2868 | ||
2869 | /* Create an entry in the branch hash table. */ | |
2870 | ||
2871 | static struct bfd_hash_entry * | |
2872 | branch_hash_newfunc (entry, table, string) | |
2873 | struct bfd_hash_entry *entry; | |
2874 | struct bfd_hash_table *table; | |
2875 | const char *string; | |
2876 | { | |
2877 | /* Allocate the structure if it has not already been allocated by a | |
2878 | subclass. */ | |
2879 | if (entry == NULL) | |
2880 | { | |
2881 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
2882 | if (entry == NULL) | |
2883 | return entry; | |
2884 | } | |
2885 | ||
2886 | /* Call the allocation method of the superclass. */ | |
2887 | entry = bfd_hash_newfunc (entry, table, string); | |
2888 | if (entry != NULL) | |
2889 | { | |
2890 | struct ppc_branch_hash_entry *eh; | |
2891 | ||
2892 | /* Initialize the local fields. */ | |
2893 | eh = (struct ppc_branch_hash_entry *) entry; | |
2894 | eh->offset = 0; | |
2895 | eh->iter = 0; | |
2896 | } | |
2897 | ||
2898 | return entry; | |
2899 | } | |
2900 | ||
65f38f15 AM |
2901 | /* Create an entry in a ppc64 ELF linker hash table. */ |
2902 | ||
2903 | static struct bfd_hash_entry * | |
2904 | link_hash_newfunc (entry, table, string) | |
2905 | struct bfd_hash_entry *entry; | |
2906 | struct bfd_hash_table *table; | |
2907 | const char *string; | |
2908 | { | |
2909 | /* Allocate the structure if it has not already been allocated by a | |
2910 | subclass. */ | |
2911 | if (entry == NULL) | |
2912 | { | |
2913 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
2914 | if (entry == NULL) | |
2915 | return entry; | |
2916 | } | |
2917 | ||
2918 | /* Call the allocation method of the superclass. */ | |
2919 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
2920 | if (entry != NULL) | |
2921 | { | |
2922 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
2923 | ||
721956f4 | 2924 | eh->stub_cache = NULL; |
65f38f15 | 2925 | eh->dyn_relocs = NULL; |
721956f4 | 2926 | eh->oh = NULL; |
e86ce104 AM |
2927 | eh->is_func = 0; |
2928 | eh->is_func_descriptor = 0; | |
1e2f5b6e | 2929 | eh->is_entry = 0; |
e7b938ca | 2930 | eh->tls_mask = 0; |
65f38f15 AM |
2931 | } |
2932 | ||
2933 | return entry; | |
2934 | } | |
2935 | ||
2936 | /* Create a ppc64 ELF linker hash table. */ | |
2937 | ||
2938 | static struct bfd_link_hash_table * | |
2939 | ppc64_elf_link_hash_table_create (abfd) | |
2940 | bfd *abfd; | |
2941 | { | |
2942 | struct ppc_link_hash_table *htab; | |
2943 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
2944 | ||
e2d34d7d | 2945 | htab = (struct ppc_link_hash_table *) bfd_malloc (amt); |
65f38f15 AM |
2946 | if (htab == NULL) |
2947 | return NULL; | |
2948 | ||
2949 | if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc)) | |
2950 | { | |
e2d34d7d | 2951 | free (htab); |
65f38f15 AM |
2952 | return NULL; |
2953 | } | |
2954 | ||
721956f4 AM |
2955 | /* Init the stub hash table too. */ |
2956 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc)) | |
2957 | return NULL; | |
2958 | ||
2959 | /* And the branch hash table. */ | |
2960 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc)) | |
2961 | return NULL; | |
2962 | ||
2963 | htab->stub_bfd = NULL; | |
2964 | htab->add_stub_section = NULL; | |
2965 | htab->layout_sections_again = NULL; | |
2966 | htab->stub_group = NULL; | |
65f38f15 AM |
2967 | htab->sgot = NULL; |
2968 | htab->srelgot = NULL; | |
2969 | htab->splt = NULL; | |
2970 | htab->srelplt = NULL; | |
2971 | htab->sdynbss = NULL; | |
2972 | htab->srelbss = NULL; | |
2973 | htab->sglink = NULL; | |
82bd7b59 | 2974 | htab->sfpr = NULL; |
721956f4 AM |
2975 | htab->sbrlt = NULL; |
2976 | htab->srelbrlt = NULL; | |
411e1bfb | 2977 | htab->tls_sec = NULL; |
58ac9f71 | 2978 | htab->tls_get_addr = NULL; |
411e1bfb | 2979 | htab->tlsld_got.refcount = 0; |
721956f4 AM |
2980 | htab->stub_error = 0; |
2981 | htab->has_14bit_branch = 0; | |
805fc799 | 2982 | htab->have_undefweak = 0; |
721956f4 | 2983 | htab->stub_iteration = 0; |
ec338859 | 2984 | htab->sym_sec.abfd = NULL; |
951fd09b AM |
2985 | /* Initializing two fields of the union is just cosmetic. We really |
2986 | only care about glist, but when compiled on a 32-bit host the | |
2987 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
2988 | debugger inspection of these fields look nicer. */ | |
2989 | htab->elf.init_refcount.refcount = 0; | |
411e1bfb | 2990 | htab->elf.init_refcount.glist = NULL; |
951fd09b | 2991 | htab->elf.init_offset.offset = 0; |
411e1bfb | 2992 | htab->elf.init_offset.glist = NULL; |
65f38f15 AM |
2993 | |
2994 | return &htab->elf.root; | |
2995 | } | |
2996 | ||
721956f4 AM |
2997 | /* Free the derived linker hash table. */ |
2998 | ||
2999 | static void | |
3000 | ppc64_elf_link_hash_table_free (hash) | |
3001 | struct bfd_link_hash_table *hash; | |
3002 | { | |
3003 | struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash; | |
3004 | ||
3005 | bfd_hash_table_free (&ret->stub_hash_table); | |
3006 | bfd_hash_table_free (&ret->branch_hash_table); | |
3007 | _bfd_generic_link_hash_table_free (hash); | |
3008 | } | |
3009 | ||
3010 | /* Build a name for an entry in the stub hash table. */ | |
3011 | ||
3012 | static char * | |
3013 | ppc_stub_name (input_section, sym_sec, h, rel) | |
3014 | const asection *input_section; | |
3015 | const asection *sym_sec; | |
3016 | const struct ppc_link_hash_entry *h; | |
3017 | const Elf_Internal_Rela *rel; | |
3018 | { | |
3019 | char *stub_name; | |
3020 | bfd_size_type len; | |
3021 | ||
3022 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
3023 | offsets from a sym as a branch target? In fact, we could | |
3024 | probably assume the addend is always zero. */ | |
3025 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
3026 | ||
3027 | if (h) | |
3028 | { | |
3029 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
3030 | stub_name = bfd_malloc (len); | |
3031 | if (stub_name != NULL) | |
3032 | { | |
3033 | sprintf (stub_name, "%08x_%s+%x", | |
3034 | input_section->id & 0xffffffff, | |
3035 | h->elf.root.root.string, | |
3036 | (int) rel->r_addend & 0xffffffff); | |
3037 | } | |
3038 | } | |
3039 | else | |
3040 | { | |
3041 | len = 8 + 1 + 8 + 1 + 8 + 1 + 16 + 1; | |
3042 | stub_name = bfd_malloc (len); | |
3043 | if (stub_name != NULL) | |
3044 | { | |
3045 | sprintf (stub_name, "%08x_%x:%x+%x", | |
3046 | input_section->id & 0xffffffff, | |
3047 | sym_sec->id & 0xffffffff, | |
3048 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
3049 | (int) rel->r_addend & 0xffffffff); | |
3050 | } | |
3051 | } | |
3052 | return stub_name; | |
3053 | } | |
3054 | ||
3055 | /* Look up an entry in the stub hash. Stub entries are cached because | |
3056 | creating the stub name takes a bit of time. */ | |
3057 | ||
3058 | static struct ppc_stub_hash_entry * | |
3059 | ppc_get_stub_entry (input_section, sym_sec, hash, rel, htab) | |
3060 | const asection *input_section; | |
3061 | const asection *sym_sec; | |
3062 | struct elf_link_hash_entry *hash; | |
3063 | const Elf_Internal_Rela *rel; | |
3064 | struct ppc_link_hash_table *htab; | |
3065 | { | |
3066 | struct ppc_stub_hash_entry *stub_entry; | |
3067 | struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash; | |
3068 | const asection *id_sec; | |
3069 | ||
3070 | /* If this input section is part of a group of sections sharing one | |
3071 | stub section, then use the id of the first section in the group. | |
3072 | Stub names need to include a section id, as there may well be | |
3073 | more than one stub used to reach say, printf, and we need to | |
3074 | distinguish between them. */ | |
3075 | id_sec = htab->stub_group[input_section->id].link_sec; | |
3076 | ||
3077 | if (h != NULL && h->stub_cache != NULL | |
3078 | && h->stub_cache->h == h | |
3079 | && h->stub_cache->id_sec == id_sec) | |
3080 | { | |
3081 | stub_entry = h->stub_cache; | |
3082 | } | |
3083 | else | |
3084 | { | |
3085 | char *stub_name; | |
3086 | ||
3087 | stub_name = ppc_stub_name (id_sec, sym_sec, h, rel); | |
3088 | if (stub_name == NULL) | |
3089 | return NULL; | |
3090 | ||
3091 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 3092 | stub_name, FALSE, FALSE); |
721956f4 AM |
3093 | if (h != NULL) |
3094 | h->stub_cache = stub_entry; | |
3095 | ||
3096 | free (stub_name); | |
3097 | } | |
3098 | ||
3099 | return stub_entry; | |
3100 | } | |
3101 | ||
3102 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
3103 | stub entry are initialised. */ | |
3104 | ||
3105 | static struct ppc_stub_hash_entry * | |
3106 | ppc_add_stub (stub_name, section, htab) | |
3107 | const char *stub_name; | |
3108 | asection *section; | |
3109 | struct ppc_link_hash_table *htab; | |
3110 | { | |
3111 | asection *link_sec; | |
3112 | asection *stub_sec; | |
3113 | struct ppc_stub_hash_entry *stub_entry; | |
3114 | ||
3115 | link_sec = htab->stub_group[section->id].link_sec; | |
3116 | stub_sec = htab->stub_group[section->id].stub_sec; | |
3117 | if (stub_sec == NULL) | |
3118 | { | |
3119 | stub_sec = htab->stub_group[link_sec->id].stub_sec; | |
3120 | if (stub_sec == NULL) | |
3121 | { | |
d4c88bbb | 3122 | size_t namelen; |
721956f4 AM |
3123 | bfd_size_type len; |
3124 | char *s_name; | |
3125 | ||
d4c88bbb AM |
3126 | namelen = strlen (link_sec->name); |
3127 | len = namelen + sizeof (STUB_SUFFIX); | |
721956f4 AM |
3128 | s_name = bfd_alloc (htab->stub_bfd, len); |
3129 | if (s_name == NULL) | |
3130 | return NULL; | |
3131 | ||
d4c88bbb AM |
3132 | memcpy (s_name, link_sec->name, namelen); |
3133 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
721956f4 AM |
3134 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
3135 | if (stub_sec == NULL) | |
3136 | return NULL; | |
3137 | htab->stub_group[link_sec->id].stub_sec = stub_sec; | |
3138 | } | |
3139 | htab->stub_group[section->id].stub_sec = stub_sec; | |
3140 | } | |
3141 | ||
3142 | /* Enter this entry into the linker stub hash table. */ | |
3143 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
b34976b6 | 3144 | TRUE, FALSE); |
721956f4 AM |
3145 | if (stub_entry == NULL) |
3146 | { | |
3147 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
3148 | bfd_archive_filename (section->owner), | |
3149 | stub_name); | |
3150 | return NULL; | |
3151 | } | |
3152 | ||
3153 | stub_entry->stub_sec = stub_sec; | |
3154 | stub_entry->stub_offset = 0; | |
3155 | stub_entry->id_sec = link_sec; | |
3156 | return stub_entry; | |
3157 | } | |
3158 | ||
82bd7b59 AM |
3159 | /* Create sections for linker generated code. */ |
3160 | ||
b34976b6 | 3161 | static bfd_boolean |
82bd7b59 AM |
3162 | create_linkage_sections (dynobj, info) |
3163 | bfd *dynobj; | |
3164 | struct bfd_link_info *info; | |
3165 | { | |
3166 | struct ppc_link_hash_table *htab; | |
3167 | flagword flags; | |
3168 | ||
3169 | htab = ppc_hash_table (info); | |
3170 | ||
3171 | /* Create .sfpr for code to save and restore fp regs. */ | |
3172 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | |
3173 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
721956f4 | 3174 | htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr"); |
82bd7b59 AM |
3175 | if (htab->sfpr == NULL |
3176 | || ! bfd_set_section_flags (dynobj, htab->sfpr, flags) | |
3177 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
b34976b6 | 3178 | return FALSE; |
82bd7b59 | 3179 | |
721956f4 AM |
3180 | /* Create .glink for lazy dynamic linking support. */ |
3181 | htab->sglink = bfd_make_section_anyway (dynobj, ".glink"); | |
82bd7b59 AM |
3182 | if (htab->sglink == NULL |
3183 | || ! bfd_set_section_flags (dynobj, htab->sglink, flags) | |
3184 | || ! bfd_set_section_alignment (dynobj, htab->sglink, 2)) | |
b34976b6 | 3185 | return FALSE; |
82bd7b59 | 3186 | |
721956f4 AM |
3187 | /* Create .branch_lt for plt_branch stubs. */ |
3188 | flags = (SEC_ALLOC | SEC_LOAD | |
3189 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3190 | htab->sbrlt = bfd_make_section_anyway (dynobj, ".branch_lt"); | |
3191 | if (htab->sbrlt == NULL | |
3192 | || ! bfd_set_section_flags (dynobj, htab->sbrlt, flags) | |
3193 | || ! bfd_set_section_alignment (dynobj, htab->sbrlt, 3)) | |
b34976b6 | 3194 | return FALSE; |
721956f4 AM |
3195 | |
3196 | if (info->shared) | |
3197 | { | |
3198 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
3199 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1e2f5b6e | 3200 | htab->srelbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt"); |
721956f4 AM |
3201 | if (!htab->srelbrlt |
3202 | || ! bfd_set_section_flags (dynobj, htab->srelbrlt, flags) | |
3203 | || ! bfd_set_section_alignment (dynobj, htab->srelbrlt, 3)) | |
b34976b6 | 3204 | return FALSE; |
721956f4 | 3205 | } |
b34976b6 | 3206 | return TRUE; |
82bd7b59 AM |
3207 | } |
3208 | ||
65f38f15 AM |
3209 | /* Create .got and .rela.got sections in DYNOBJ, and set up |
3210 | shortcuts to them in our hash table. */ | |
3211 | ||
b34976b6 | 3212 | static bfd_boolean |
65f38f15 AM |
3213 | create_got_section (dynobj, info) |
3214 | bfd *dynobj; | |
3215 | struct bfd_link_info *info; | |
3216 | { | |
3217 | struct ppc_link_hash_table *htab; | |
3218 | ||
3219 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 3220 | return FALSE; |
65f38f15 AM |
3221 | |
3222 | htab = ppc_hash_table (info); | |
3223 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
3224 | if (!htab->sgot) | |
3225 | abort (); | |
3226 | ||
3227 | htab->srelgot = bfd_make_section (dynobj, ".rela.got"); | |
3228 | if (!htab->srelgot | |
3229 | || ! bfd_set_section_flags (dynobj, htab->srelgot, | |
3230 | (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
3231 | | SEC_IN_MEMORY | SEC_LINKER_CREATED | |
3232 | | SEC_READONLY)) | |
3233 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 3)) | |
b34976b6 AM |
3234 | return FALSE; |
3235 | return TRUE; | |
65f38f15 | 3236 | } |
5bd4f169 | 3237 | |
82bd7b59 | 3238 | /* Create the dynamic sections, and set up shortcuts. */ |
5bd4f169 | 3239 | |
b34976b6 | 3240 | static bfd_boolean |
65f38f15 AM |
3241 | ppc64_elf_create_dynamic_sections (dynobj, info) |
3242 | bfd *dynobj; | |
5bd4f169 AM |
3243 | struct bfd_link_info *info; |
3244 | { | |
65f38f15 | 3245 | struct ppc_link_hash_table *htab; |
5bd4f169 | 3246 | |
65f38f15 AM |
3247 | htab = ppc_hash_table (info); |
3248 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
b34976b6 | 3249 | return FALSE; |
5bd4f169 | 3250 | |
65f38f15 | 3251 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
b34976b6 | 3252 | return FALSE; |
65f38f15 AM |
3253 | |
3254 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
3255 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
3256 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
3257 | if (!info->shared) | |
3258 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
3259 | ||
3260 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
3261 | || (!info->shared && !htab->srelbss)) | |
3262 | abort (); | |
3263 | ||
b34976b6 | 3264 | return TRUE; |
5bd4f169 AM |
3265 | } |
3266 | ||
65f38f15 AM |
3267 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
3268 | ||
3269 | static void | |
b48fa14c | 3270 | ppc64_elf_copy_indirect_symbol (bed, dir, ind) |
411e1bfb | 3271 | struct elf_backend_data *bed ATTRIBUTE_UNUSED; |
65f38f15 AM |
3272 | struct elf_link_hash_entry *dir, *ind; |
3273 | { | |
3274 | struct ppc_link_hash_entry *edir, *eind; | |
81848ca0 | 3275 | flagword mask; |
65f38f15 AM |
3276 | |
3277 | edir = (struct ppc_link_hash_entry *) dir; | |
3278 | eind = (struct ppc_link_hash_entry *) ind; | |
3279 | ||
411e1bfb | 3280 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
bbd7ec4a | 3281 | if (eind->dyn_relocs != NULL) |
65f38f15 | 3282 | { |
bbd7ec4a AM |
3283 | if (edir->dyn_relocs != NULL) |
3284 | { | |
3285 | struct ppc_dyn_relocs **pp; | |
3286 | struct ppc_dyn_relocs *p; | |
3287 | ||
411e1bfb | 3288 | if (eind->elf.root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
3289 | abort (); |
3290 | ||
3291 | /* Add reloc counts against the weak sym to the strong sym | |
3292 | list. Merge any entries against the same section. */ | |
3293 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3294 | { | |
3295 | struct ppc_dyn_relocs *q; | |
3296 | ||
3297 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3298 | if (q->sec == p->sec) | |
3299 | { | |
3300 | q->pc_count += p->pc_count; | |
3301 | q->count += p->count; | |
3302 | *pp = p->next; | |
3303 | break; | |
3304 | } | |
3305 | if (q == NULL) | |
3306 | pp = &p->next; | |
3307 | } | |
3308 | *pp = edir->dyn_relocs; | |
3309 | } | |
3310 | ||
65f38f15 AM |
3311 | edir->dyn_relocs = eind->dyn_relocs; |
3312 | eind->dyn_relocs = NULL; | |
3313 | } | |
65f38f15 | 3314 | |
6349e628 AM |
3315 | edir->is_func |= eind->is_func; |
3316 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
3317 | edir->is_entry |= eind->is_entry; | |
58ac9f71 | 3318 | edir->tls_mask |= eind->tls_mask; |
6349e628 | 3319 | |
81848ca0 AM |
3320 | mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR |
3321 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF); | |
3322 | /* If called to transfer flags for a weakdef during processing | |
3323 | of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF. | |
3324 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3325 | if (ELIMINATE_COPY_RELOCS | |
3326 | && eind->elf.root.type != bfd_link_hash_indirect | |
3327 | && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0) | |
3328 | mask &= ~ELF_LINK_NON_GOT_REF; | |
3329 | ||
3330 | edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask; | |
6349e628 AM |
3331 | |
3332 | /* If we were called to copy over info for a weak sym, that's all. */ | |
3333 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3334 | return; | |
3335 | ||
81848ca0 AM |
3336 | /* Copy over got entries that we may have already seen to the |
3337 | symbol which just became indirect. */ | |
411e1bfb AM |
3338 | if (eind->elf.got.glist != NULL) |
3339 | { | |
3340 | if (edir->elf.got.glist != NULL) | |
3341 | { | |
3342 | struct got_entry **entp; | |
3343 | struct got_entry *ent; | |
3344 | ||
3345 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
3346 | { | |
3347 | struct got_entry *dent; | |
3348 | ||
3349 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
3350 | if (dent->addend == ent->addend | |
3351 | && dent->tls_type == ent->tls_type) | |
3352 | { | |
3353 | dent->got.refcount += ent->got.refcount; | |
3354 | *entp = ent->next; | |
3355 | break; | |
3356 | } | |
3357 | if (dent == NULL) | |
3358 | entp = &ent->next; | |
3359 | } | |
3360 | *entp = edir->elf.got.glist; | |
3361 | } | |
3362 | ||
3363 | edir->elf.got.glist = eind->elf.got.glist; | |
3364 | eind->elf.got.glist = NULL; | |
3365 | } | |
3366 | ||
3367 | /* And plt entries. */ | |
3368 | if (eind->elf.plt.plist != NULL) | |
3369 | { | |
3370 | if (edir->elf.plt.plist != NULL) | |
3371 | { | |
3372 | struct plt_entry **entp; | |
3373 | struct plt_entry *ent; | |
3374 | ||
3375 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3376 | { | |
3377 | struct plt_entry *dent; | |
3378 | ||
3379 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3380 | if (dent->addend == ent->addend) | |
3381 | { | |
3382 | dent->plt.refcount += ent->plt.refcount; | |
3383 | *entp = ent->next; | |
3384 | break; | |
3385 | } | |
3386 | if (dent == NULL) | |
3387 | entp = &ent->next; | |
3388 | } | |
3389 | *entp = edir->elf.plt.plist; | |
3390 | } | |
3391 | ||
3392 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3393 | eind->elf.plt.plist = NULL; | |
3394 | } | |
3395 | ||
411e1bfb AM |
3396 | if (edir->elf.dynindx == -1) |
3397 | { | |
3398 | edir->elf.dynindx = eind->elf.dynindx; | |
3399 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3400 | eind->elf.dynindx = -1; | |
3401 | eind->elf.dynstr_index = 0; | |
3402 | } | |
3403 | else | |
3404 | BFD_ASSERT (eind->elf.dynindx == -1); | |
3405 | } | |
3406 | ||
3407 | /* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and | |
3408 | symbols undefined on the command-line. */ | |
3409 | ||
3410 | bfd_boolean | |
3411 | ppc64_elf_mark_entry_syms (info) | |
3412 | struct bfd_link_info *info; | |
3413 | { | |
3414 | struct ppc_link_hash_table *htab; | |
3415 | struct bfd_sym_chain *sym; | |
3416 | ||
3417 | htab = ppc_hash_table (info); | |
3418 | for (sym = info->gc_sym_list; sym; sym = sym->next) | |
3419 | { | |
3420 | struct elf_link_hash_entry *h; | |
3421 | ||
3422 | h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE); | |
3423 | if (h != NULL) | |
3424 | ((struct ppc_link_hash_entry *) h)->is_entry = 1; | |
3425 | } | |
3426 | return TRUE; | |
3427 | } | |
3428 | ||
3429 | static bfd_boolean | |
3430 | update_local_sym_info (abfd, symtab_hdr, r_symndx, r_addend, tls_type) | |
3431 | bfd *abfd; | |
3432 | Elf_Internal_Shdr *symtab_hdr; | |
3433 | unsigned long r_symndx; | |
3434 | bfd_vma r_addend; | |
3435 | int tls_type; | |
3436 | { | |
3437 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
e7b938ca | 3438 | char *local_got_tls_masks; |
411e1bfb AM |
3439 | |
3440 | if (local_got_ents == NULL) | |
3441 | { | |
3442 | bfd_size_type size = symtab_hdr->sh_info; | |
3443 | ||
e7b938ca | 3444 | size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks); |
411e1bfb AM |
3445 | local_got_ents = (struct got_entry **) bfd_zalloc (abfd, size); |
3446 | if (local_got_ents == NULL) | |
3447 | return FALSE; | |
3448 | elf_local_got_ents (abfd) = local_got_ents; | |
3449 | } | |
3450 | ||
3451 | if ((tls_type & TLS_EXPLICIT) == 0) | |
3452 | { | |
3453 | struct got_entry *ent; | |
3454 | ||
3455 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
3456 | if (ent->addend == r_addend && ent->tls_type == tls_type) | |
3457 | break; | |
3458 | if (ent == NULL) | |
3459 | { | |
3460 | bfd_size_type amt = sizeof (*ent); | |
3461 | ent = (struct got_entry *) bfd_alloc (abfd, amt); | |
3462 | if (ent == NULL) | |
3463 | return FALSE; | |
3464 | ent->next = local_got_ents[r_symndx]; | |
3465 | ent->addend = r_addend; | |
3466 | ent->tls_type = tls_type; | |
3467 | ent->got.refcount = 0; | |
3468 | local_got_ents[r_symndx] = ent; | |
3469 | } | |
3470 | ent->got.refcount += 1; | |
3471 | } | |
3472 | ||
e7b938ca AM |
3473 | local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info); |
3474 | local_got_tls_masks[r_symndx] |= tls_type; | |
411e1bfb | 3475 | return TRUE; |
65f38f15 AM |
3476 | } |
3477 | ||
411e1bfb AM |
3478 | static bfd_boolean |
3479 | update_plt_info (abfd, eh, addend) | |
3480 | bfd *abfd; | |
3481 | struct ppc_link_hash_entry *eh; | |
3482 | bfd_vma addend; | |
1e2f5b6e | 3483 | { |
411e1bfb | 3484 | struct plt_entry *ent; |
1e2f5b6e | 3485 | |
411e1bfb AM |
3486 | for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next) |
3487 | if (ent->addend == addend) | |
3488 | break; | |
3489 | if (ent == NULL) | |
1e2f5b6e | 3490 | { |
411e1bfb AM |
3491 | bfd_size_type amt = sizeof (*ent); |
3492 | ent = (struct plt_entry *) bfd_alloc (abfd, amt); | |
3493 | if (ent == NULL) | |
3494 | return FALSE; | |
3495 | ent->next = eh->elf.plt.plist; | |
3496 | ent->addend = addend; | |
3497 | ent->plt.refcount = 0; | |
3498 | eh->elf.plt.plist = ent; | |
1e2f5b6e | 3499 | } |
411e1bfb AM |
3500 | ent->plt.refcount += 1; |
3501 | eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
3502 | eh->is_func = 1; | |
b34976b6 | 3503 | return TRUE; |
1e2f5b6e AM |
3504 | } |
3505 | ||
5bd4f169 | 3506 | /* Look through the relocs for a section during the first phase, and |
65f38f15 | 3507 | calculate needed space in the global offset table, procedure |
5d1634d7 | 3508 | linkage table, and dynamic reloc sections. */ |
5bd4f169 | 3509 | |
b34976b6 | 3510 | static bfd_boolean |
5bd4f169 AM |
3511 | ppc64_elf_check_relocs (abfd, info, sec, relocs) |
3512 | bfd *abfd; | |
3513 | struct bfd_link_info *info; | |
3514 | asection *sec; | |
3515 | const Elf_Internal_Rela *relocs; | |
3516 | { | |
65f38f15 | 3517 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
3518 | Elf_Internal_Shdr *symtab_hdr; |
3519 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
3520 | const Elf_Internal_Rela *rel; | |
3521 | const Elf_Internal_Rela *rel_end; | |
5bd4f169 | 3522 | asection *sreloc; |
1e2f5b6e | 3523 | asection **opd_sym_map; |
5bd4f169 AM |
3524 | |
3525 | if (info->relocateable) | |
b34976b6 | 3526 | return TRUE; |
5bd4f169 | 3527 | |
65f38f15 | 3528 | htab = ppc_hash_table (info); |
5bd4f169 | 3529 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
5bd4f169 AM |
3530 | |
3531 | sym_hashes = elf_sym_hashes (abfd); | |
3532 | sym_hashes_end = (sym_hashes | |
1e2f5b6e AM |
3533 | + symtab_hdr->sh_size / sizeof (Elf64_External_Sym) |
3534 | - symtab_hdr->sh_info); | |
5bd4f169 AM |
3535 | |
3536 | sreloc = NULL; | |
1e2f5b6e AM |
3537 | opd_sym_map = NULL; |
3538 | if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0) | |
3539 | { | |
3540 | /* Garbage collection needs some extra help with .opd sections. | |
3541 | We don't want to necessarily keep everything referenced by | |
3542 | relocs in .opd, as that would keep all functions. Instead, | |
3543 | if we reference an .opd symbol (a function descriptor), we | |
3544 | want to keep the function code symbol's section. This is | |
3545 | easy for global symbols, but for local syms we need to keep | |
3546 | information about the associated function section. Later, if | |
3547 | edit_opd deletes entries, we'll use this array to adjust | |
3548 | local syms in .opd. */ | |
3549 | union opd_info { | |
3550 | asection *func_section; | |
3551 | long entry_adjust; | |
3552 | }; | |
3553 | bfd_size_type amt; | |
3554 | ||
3555 | amt = sec->_raw_size * sizeof (union opd_info) / 24; | |
3556 | opd_sym_map = (asection **) bfd_zalloc (abfd, amt); | |
3557 | if (opd_sym_map == NULL) | |
b34976b6 | 3558 | return FALSE; |
f0abc2a1 | 3559 | ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map; |
1e2f5b6e | 3560 | } |
5bd4f169 | 3561 | |
82bd7b59 AM |
3562 | if (htab->elf.dynobj == NULL) |
3563 | htab->elf.dynobj = abfd; | |
3564 | if (htab->sfpr == NULL | |
3565 | && !create_linkage_sections (htab->elf.dynobj, info)) | |
b34976b6 | 3566 | return FALSE; |
82bd7b59 | 3567 | |
5bd4f169 AM |
3568 | rel_end = relocs + sec->reloc_count; |
3569 | for (rel = relocs; rel < rel_end; rel++) | |
3570 | { | |
3571 | unsigned long r_symndx; | |
3572 | struct elf_link_hash_entry *h; | |
04c9666a | 3573 | enum elf_ppc64_reloc_type r_type; |
411e1bfb | 3574 | int tls_type = 0; |
5bd4f169 AM |
3575 | |
3576 | r_symndx = ELF64_R_SYM (rel->r_info); | |
3577 | if (r_symndx < symtab_hdr->sh_info) | |
3578 | h = NULL; | |
3579 | else | |
3580 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3581 | ||
04c9666a | 3582 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 3583 | switch (r_type) |
5bd4f169 | 3584 | { |
411e1bfb AM |
3585 | case R_PPC64_GOT_TLSLD16: |
3586 | case R_PPC64_GOT_TLSLD16_LO: | |
3587 | case R_PPC64_GOT_TLSLD16_HI: | |
3588 | case R_PPC64_GOT_TLSLD16_HA: | |
3589 | htab->tlsld_got.refcount += 1; | |
951fd09b | 3590 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
3591 | goto dogottls; |
3592 | ||
3593 | case R_PPC64_GOT_TLSGD16: | |
3594 | case R_PPC64_GOT_TLSGD16_LO: | |
3595 | case R_PPC64_GOT_TLSGD16_HI: | |
3596 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 3597 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
3598 | goto dogottls; |
3599 | ||
3600 | case R_PPC64_GOT_TPREL16_DS: | |
3601 | case R_PPC64_GOT_TPREL16_LO_DS: | |
3602 | case R_PPC64_GOT_TPREL16_HI: | |
3603 | case R_PPC64_GOT_TPREL16_HA: | |
3604 | if (info->shared) | |
3605 | info->flags |= DF_STATIC_TLS; | |
3606 | tls_type = TLS_TLS | TLS_TPREL; | |
3607 | goto dogottls; | |
3608 | ||
3609 | case R_PPC64_GOT_DTPREL16_DS: | |
3610 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
3611 | case R_PPC64_GOT_DTPREL16_HI: | |
3612 | case R_PPC64_GOT_DTPREL16_HA: | |
3613 | tls_type = TLS_TLS | TLS_DTPREL; | |
3614 | dogottls: | |
3615 | sec->has_tls_reloc = 1; | |
3616 | /* Fall thru */ | |
3617 | ||
5bd4f169 | 3618 | case R_PPC64_GOT16: |
5bd4f169 | 3619 | case R_PPC64_GOT16_DS: |
65f38f15 AM |
3620 | case R_PPC64_GOT16_HA: |
3621 | case R_PPC64_GOT16_HI: | |
3622 | case R_PPC64_GOT16_LO: | |
5bd4f169 | 3623 | case R_PPC64_GOT16_LO_DS: |
65f38f15 | 3624 | /* This symbol requires a global offset table entry. */ |
82bd7b59 AM |
3625 | if (htab->sgot == NULL |
3626 | && !create_got_section (htab->elf.dynobj, info)) | |
b34976b6 | 3627 | return FALSE; |
5bd4f169 AM |
3628 | |
3629 | if (h != NULL) | |
3630 | { | |
411e1bfb AM |
3631 | struct ppc_link_hash_entry *eh; |
3632 | struct got_entry *ent; | |
65f38f15 | 3633 | |
411e1bfb AM |
3634 | eh = (struct ppc_link_hash_entry *) h; |
3635 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
3636 | if (ent->addend == rel->r_addend | |
3637 | && ent->tls_type == tls_type) | |
3638 | break; | |
3639 | if (ent == NULL) | |
5bd4f169 | 3640 | { |
411e1bfb AM |
3641 | bfd_size_type amt = sizeof (*ent); |
3642 | ent = (struct got_entry *) bfd_alloc (abfd, amt); | |
3643 | if (ent == NULL) | |
b34976b6 | 3644 | return FALSE; |
411e1bfb AM |
3645 | ent->next = eh->elf.got.glist; |
3646 | ent->addend = rel->r_addend; | |
3647 | ent->tls_type = tls_type; | |
3648 | ent->got.refcount = 0; | |
3649 | eh->elf.got.glist = ent; | |
5bd4f169 | 3650 | } |
411e1bfb | 3651 | ent->got.refcount += 1; |
e7b938ca | 3652 | eh->tls_mask |= tls_type; |
5bd4f169 | 3653 | } |
411e1bfb AM |
3654 | else |
3655 | /* This is a global offset table entry for a local symbol. */ | |
3656 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3657 | rel->r_addend, tls_type)) | |
3658 | return FALSE; | |
5bd4f169 AM |
3659 | break; |
3660 | ||
5bd4f169 | 3661 | case R_PPC64_PLT16_HA: |
65f38f15 AM |
3662 | case R_PPC64_PLT16_HI: |
3663 | case R_PPC64_PLT16_LO: | |
3664 | case R_PPC64_PLT32: | |
3665 | case R_PPC64_PLT64: | |
5bd4f169 | 3666 | /* This symbol requires a procedure linkage table entry. We |
3fad3c7c AM |
3667 | actually build the entry in adjust_dynamic_symbol, |
3668 | because this might be a case of linking PIC code without | |
3669 | linking in any dynamic objects, in which case we don't | |
3670 | need to generate a procedure linkage table after all. */ | |
5bd4f169 AM |
3671 | if (h == NULL) |
3672 | { | |
3673 | /* It does not make sense to have a procedure linkage | |
3fad3c7c | 3674 | table entry for a local symbol. */ |
5bd4f169 | 3675 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3676 | return FALSE; |
5bd4f169 | 3677 | } |
411e1bfb AM |
3678 | else |
3679 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, | |
3680 | rel->r_addend)) | |
3681 | return FALSE; | |
5bd4f169 AM |
3682 | break; |
3683 | ||
3684 | /* The following relocations don't need to propagate the | |
3685 | relocation if linking a shared object since they are | |
3686 | section relative. */ | |
3687 | case R_PPC64_SECTOFF: | |
3688 | case R_PPC64_SECTOFF_LO: | |
3689 | case R_PPC64_SECTOFF_HI: | |
3690 | case R_PPC64_SECTOFF_HA: | |
3691 | case R_PPC64_SECTOFF_DS: | |
3692 | case R_PPC64_SECTOFF_LO_DS: | |
3693 | case R_PPC64_TOC16: | |
3694 | case R_PPC64_TOC16_LO: | |
3695 | case R_PPC64_TOC16_HI: | |
3696 | case R_PPC64_TOC16_HA: | |
3697 | case R_PPC64_TOC16_DS: | |
3698 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
3699 | case R_PPC64_DTPREL16: |
3700 | case R_PPC64_DTPREL16_LO: | |
3701 | case R_PPC64_DTPREL16_HI: | |
3702 | case R_PPC64_DTPREL16_HA: | |
3703 | case R_PPC64_DTPREL16_DS: | |
3704 | case R_PPC64_DTPREL16_LO_DS: | |
3705 | case R_PPC64_DTPREL16_HIGHER: | |
3706 | case R_PPC64_DTPREL16_HIGHERA: | |
3707 | case R_PPC64_DTPREL16_HIGHEST: | |
3708 | case R_PPC64_DTPREL16_HIGHESTA: | |
5bd4f169 AM |
3709 | break; |
3710 | ||
3711 | /* This relocation describes the C++ object vtable hierarchy. | |
3712 | Reconstruct it for later use during GC. */ | |
3713 | case R_PPC64_GNU_VTINHERIT: | |
3714 | if (!_bfd_elf64_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
b34976b6 | 3715 | return FALSE; |
5bd4f169 AM |
3716 | break; |
3717 | ||
3718 | /* This relocation describes which C++ vtable entries are actually | |
3719 | used. Record for later use during GC. */ | |
3720 | case R_PPC64_GNU_VTENTRY: | |
3721 | if (!_bfd_elf64_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 3722 | return FALSE; |
5bd4f169 AM |
3723 | break; |
3724 | ||
721956f4 AM |
3725 | case R_PPC64_REL14: |
3726 | case R_PPC64_REL14_BRTAKEN: | |
3727 | case R_PPC64_REL14_BRNTAKEN: | |
3728 | htab->has_14bit_branch = 1; | |
3729 | /* Fall through. */ | |
3730 | ||
5d1634d7 | 3731 | case R_PPC64_REL24: |
e86ce104 AM |
3732 | if (h != NULL |
3733 | && h->root.root.string[0] == '.' | |
3734 | && h->root.root.string[1] != 0) | |
5d1634d7 AM |
3735 | { |
3736 | /* We may need a .plt entry if the function this reloc | |
3737 | refers to is in a shared lib. */ | |
411e1bfb AM |
3738 | if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h, |
3739 | rel->r_addend)) | |
3740 | return FALSE; | |
3741 | if (h == htab->tls_get_addr) | |
3742 | sec->has_tls_reloc = 1; | |
a48ebf4d AM |
3743 | else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15) |
3744 | == 0) | |
3745 | && (h->root.root.string[15] == 0 | |
3746 | || h->root.root.string[15] == '@')) | |
411e1bfb AM |
3747 | { |
3748 | htab->tls_get_addr = h; | |
3749 | sec->has_tls_reloc = 1; | |
3750 | } | |
3751 | } | |
3752 | break; | |
3753 | ||
3754 | case R_PPC64_TPREL64: | |
3755 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
3756 | if (info->shared) | |
3757 | info->flags |= DF_STATIC_TLS; | |
3758 | goto dotlstoc; | |
3759 | ||
3760 | case R_PPC64_DTPMOD64: | |
3761 | if (rel + 1 < rel_end | |
3762 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
3763 | && rel[1].r_offset == rel->r_offset + 8) | |
951fd09b | 3764 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
411e1bfb | 3765 | else |
951fd09b | 3766 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
411e1bfb AM |
3767 | goto dotlstoc; |
3768 | ||
3769 | case R_PPC64_DTPREL64: | |
3770 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
3771 | if (rel != relocs | |
3772 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
3773 | && rel[-1].r_offset == rel->r_offset - 8) | |
3774 | /* This is the second reloc of a dtpmod, dtprel pair. | |
3775 | Don't mark with TLS_DTPREL. */ | |
3776 | goto dodyn; | |
3777 | ||
3778 | dotlstoc: | |
3779 | sec->has_tls_reloc = 1; | |
3780 | if (h != NULL) | |
3781 | { | |
3782 | struct ppc_link_hash_entry *eh; | |
3783 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 3784 | eh->tls_mask |= tls_type; |
411e1bfb AM |
3785 | } |
3786 | else | |
3787 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
3788 | rel->r_addend, tls_type)) | |
3789 | return FALSE; | |
3790 | ||
3791 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3792 | { | |
e7b938ca | 3793 | /* One extra to simplify get_tls_mask. */ |
951fd09b | 3794 | bfd_size_type amt = sec->_raw_size * sizeof (unsigned) / 8 + 1; |
411e1bfb AM |
3795 | ppc64_elf_section_data (sec)->t_symndx |
3796 | = (unsigned *) bfd_zalloc (abfd, amt); | |
3797 | if (ppc64_elf_section_data (sec)->t_symndx == NULL) | |
3798 | return FALSE; | |
3799 | } | |
3800 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
3801 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx; | |
951fd09b AM |
3802 | |
3803 | /* Mark the second slot of a GD or LD entry. | |
3804 | -1 to indicate GD and -2 to indicate LD. */ | |
3805 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
3806 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1; | |
3807 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) | |
3808 | ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2; | |
411e1bfb AM |
3809 | goto dodyn; |
3810 | ||
3811 | case R_PPC64_TPREL16: | |
3812 | case R_PPC64_TPREL16_LO: | |
3813 | case R_PPC64_TPREL16_HI: | |
3814 | case R_PPC64_TPREL16_HA: | |
3815 | case R_PPC64_TPREL16_DS: | |
3816 | case R_PPC64_TPREL16_LO_DS: | |
3817 | case R_PPC64_TPREL16_HIGHER: | |
3818 | case R_PPC64_TPREL16_HIGHERA: | |
3819 | case R_PPC64_TPREL16_HIGHEST: | |
3820 | case R_PPC64_TPREL16_HIGHESTA: | |
3821 | if (info->shared) | |
3822 | { | |
3823 | info->flags |= DF_STATIC_TLS; | |
3824 | goto dodyn; | |
5d1634d7 AM |
3825 | } |
3826 | break; | |
3827 | ||
e86ce104 | 3828 | case R_PPC64_ADDR64: |
1e2f5b6e | 3829 | if (opd_sym_map != NULL |
e86ce104 AM |
3830 | && h != NULL |
3831 | && h->root.root.string[0] == '.' | |
3832 | && h->root.root.string[1] != 0) | |
3833 | { | |
3834 | struct elf_link_hash_entry *fdh; | |
3835 | ||
3836 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 3837 | FALSE, FALSE, FALSE); |
e86ce104 AM |
3838 | if (fdh != NULL) |
3839 | { | |
e86ce104 | 3840 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 3841 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
e86ce104 | 3842 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
721956f4 | 3843 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
3844 | } |
3845 | } | |
1e2f5b6e AM |
3846 | if (opd_sym_map != NULL |
3847 | && h == NULL | |
3848 | && rel + 1 < rel_end | |
04c9666a | 3849 | && ((enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info) |
1e2f5b6e AM |
3850 | == R_PPC64_TOC)) |
3851 | { | |
3852 | asection *s; | |
3853 | ||
3854 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3855 | r_symndx); | |
3856 | if (s == NULL) | |
b34976b6 | 3857 | return FALSE; |
1e2f5b6e AM |
3858 | else if (s != sec) |
3859 | opd_sym_map[rel->r_offset / 24] = s; | |
3860 | } | |
e86ce104 AM |
3861 | /* Fall through. */ |
3862 | ||
04c9666a | 3863 | case R_PPC64_REL30: |
5bd4f169 | 3864 | case R_PPC64_REL32: |
04c9666a | 3865 | case R_PPC64_REL64: |
65f38f15 AM |
3866 | case R_PPC64_ADDR14: |
3867 | case R_PPC64_ADDR14_BRNTAKEN: | |
3868 | case R_PPC64_ADDR14_BRTAKEN: | |
3869 | case R_PPC64_ADDR16: | |
3870 | case R_PPC64_ADDR16_DS: | |
3871 | case R_PPC64_ADDR16_HA: | |
3872 | case R_PPC64_ADDR16_HI: | |
3873 | case R_PPC64_ADDR16_HIGHER: | |
3874 | case R_PPC64_ADDR16_HIGHERA: | |
3875 | case R_PPC64_ADDR16_HIGHEST: | |
3876 | case R_PPC64_ADDR16_HIGHESTA: | |
3877 | case R_PPC64_ADDR16_LO: | |
3878 | case R_PPC64_ADDR16_LO_DS: | |
3879 | case R_PPC64_ADDR24: | |
65f38f15 | 3880 | case R_PPC64_ADDR32: |
65f38f15 AM |
3881 | case R_PPC64_UADDR16: |
3882 | case R_PPC64_UADDR32: | |
3883 | case R_PPC64_UADDR64: | |
5bd4f169 | 3884 | case R_PPC64_TOC: |
81848ca0 AM |
3885 | if (h != NULL && !info->shared) |
3886 | /* We may need a copy reloc. */ | |
3887 | h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
3888 | ||
41bd81ab | 3889 | /* Don't propagate .opd relocs. */ |
1e2f5b6e | 3890 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
e86ce104 | 3891 | break; |
e86ce104 | 3892 | |
f4656909 AM |
3893 | /* Don't propagate relocs that the dynamic linker won't relocate. */ |
3894 | if ((sec->flags & SEC_ALLOC) == 0) | |
3895 | break; | |
3896 | ||
65f38f15 AM |
3897 | /* If we are creating a shared library, and this is a reloc |
3898 | against a global symbol, or a non PC relative reloc | |
3899 | against a local symbol, then we need to copy the reloc | |
3900 | into the shared library. However, if we are linking with | |
3901 | -Bsymbolic, we do not need to copy a reloc against a | |
3902 | global symbol which is defined in an object we are | |
3903 | including in the link (i.e., DEF_REGULAR is set). At | |
3904 | this point we have not seen all the input files, so it is | |
3905 | possible that DEF_REGULAR is not set now but will be set | |
3906 | later (it is never cleared). In case of a weak definition, | |
3907 | DEF_REGULAR may be cleared later by a strong definition in | |
3908 | a shared library. We account for that possibility below by | |
f4656909 | 3909 | storing information in the dyn_relocs field of the hash |
65f38f15 AM |
3910 | table entry. A similar situation occurs when creating |
3911 | shared libraries and symbol visibility changes render the | |
3912 | symbol local. | |
3913 | ||
3914 | If on the other hand, we are creating an executable, we | |
3915 | may need to keep relocations for symbols satisfied by a | |
3916 | dynamic library if we manage to avoid copy relocs for the | |
3917 | symbol. */ | |
411e1bfb | 3918 | dodyn: |
65f38f15 | 3919 | if ((info->shared |
411e1bfb | 3920 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 AM |
3921 | || (h != NULL |
3922 | && (! info->symbolic | |
3923 | || h->root.type == bfd_link_hash_defweak | |
3924 | || (h->elf_link_hash_flags | |
3925 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
f4656909 AM |
3926 | || (ELIMINATE_COPY_RELOCS |
3927 | && !info->shared | |
65f38f15 AM |
3928 | && h != NULL |
3929 | && (h->root.type == bfd_link_hash_defweak | |
3930 | || (h->elf_link_hash_flags | |
3931 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
5bd4f169 | 3932 | { |
ec338859 AM |
3933 | struct ppc_dyn_relocs *p; |
3934 | struct ppc_dyn_relocs **head; | |
3935 | ||
65f38f15 AM |
3936 | /* We must copy these reloc types into the output file. |
3937 | Create a reloc section in dynobj and make room for | |
3938 | this reloc. */ | |
5bd4f169 AM |
3939 | if (sreloc == NULL) |
3940 | { | |
3941 | const char *name; | |
65f38f15 | 3942 | bfd *dynobj; |
5bd4f169 AM |
3943 | |
3944 | name = (bfd_elf_string_from_elf_section | |
3945 | (abfd, | |
3946 | elf_elfheader (abfd)->e_shstrndx, | |
3947 | elf_section_data (sec)->rel_hdr.sh_name)); | |
3948 | if (name == NULL) | |
b34976b6 | 3949 | return FALSE; |
5bd4f169 | 3950 | |
65f38f15 AM |
3951 | if (strncmp (name, ".rela", 5) != 0 |
3952 | || strcmp (bfd_get_section_name (abfd, sec), | |
3953 | name + 5) != 0) | |
3954 | { | |
3955 | (*_bfd_error_handler) | |
3956 | (_("%s: bad relocation section name `%s\'"), | |
3957 | bfd_archive_filename (abfd), name); | |
5d1634d7 | 3958 | bfd_set_error (bfd_error_bad_value); |
65f38f15 AM |
3959 | } |
3960 | ||
65f38f15 | 3961 | dynobj = htab->elf.dynobj; |
5bd4f169 AM |
3962 | sreloc = bfd_get_section_by_name (dynobj, name); |
3963 | if (sreloc == NULL) | |
3964 | { | |
3965 | flagword flags; | |
3966 | ||
3967 | sreloc = bfd_make_section (dynobj, name); | |
3968 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
3969 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3970 | if ((sec->flags & SEC_ALLOC) != 0) | |
3971 | flags |= SEC_ALLOC | SEC_LOAD; | |
3972 | if (sreloc == NULL | |
3973 | || ! bfd_set_section_flags (dynobj, sreloc, flags) | |
65f38f15 | 3974 | || ! bfd_set_section_alignment (dynobj, sreloc, 3)) |
b34976b6 | 3975 | return FALSE; |
5bd4f169 | 3976 | } |
65f38f15 | 3977 | elf_section_data (sec)->sreloc = sreloc; |
5bd4f169 AM |
3978 | } |
3979 | ||
65f38f15 AM |
3980 | /* If this is a global symbol, we count the number of |
3981 | relocations we need for this symbol. */ | |
3982 | if (h != NULL) | |
3983 | { | |
ec338859 | 3984 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
65f38f15 AM |
3985 | } |
3986 | else | |
3987 | { | |
ec338859 AM |
3988 | /* Track dynamic relocs needed for local syms too. |
3989 | We really need local syms available to do this | |
3990 | easily. Oh well. */ | |
3991 | ||
3992 | asection *s; | |
3993 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
3994 | sec, r_symndx); | |
3995 | if (s == NULL) | |
b34976b6 | 3996 | return FALSE; |
ec338859 AM |
3997 | |
3998 | head = ((struct ppc_dyn_relocs **) | |
3999 | &elf_section_data (s)->local_dynrel); | |
65f38f15 | 4000 | } |
ec338859 AM |
4001 | |
4002 | p = *head; | |
4003 | if (p == NULL || p->sec != sec) | |
4004 | { | |
4005 | p = ((struct ppc_dyn_relocs *) | |
4006 | bfd_alloc (htab->elf.dynobj, | |
4007 | (bfd_size_type) sizeof *p)); | |
4008 | if (p == NULL) | |
b34976b6 | 4009 | return FALSE; |
ec338859 AM |
4010 | p->next = *head; |
4011 | *head = p; | |
4012 | p->sec = sec; | |
4013 | p->count = 0; | |
4014 | p->pc_count = 0; | |
4015 | } | |
4016 | ||
4017 | p->count += 1; | |
411e1bfb | 4018 | if (!MUST_BE_DYN_RELOC (r_type)) |
ec338859 | 4019 | p->pc_count += 1; |
65f38f15 | 4020 | } |
5bd4f169 | 4021 | break; |
65f38f15 AM |
4022 | |
4023 | default: | |
96e0dda4 | 4024 | break; |
5bd4f169 AM |
4025 | } |
4026 | } | |
4027 | ||
b34976b6 | 4028 | return TRUE; |
5bd4f169 AM |
4029 | } |
4030 | ||
4031 | /* Return the section that should be marked against GC for a given | |
4032 | relocation. */ | |
4033 | ||
4034 | static asection * | |
1e2f5b6e AM |
4035 | ppc64_elf_gc_mark_hook (sec, info, rel, h, sym) |
4036 | asection *sec; | |
5bd4f169 AM |
4037 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
4038 | Elf_Internal_Rela *rel; | |
4039 | struct elf_link_hash_entry *h; | |
4040 | Elf_Internal_Sym *sym; | |
4041 | { | |
1e2f5b6e AM |
4042 | asection *rsec = NULL; |
4043 | ||
5bd4f169 AM |
4044 | if (h != NULL) |
4045 | { | |
04c9666a | 4046 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e | 4047 | struct ppc_link_hash_entry *fdh; |
a33d1f77 | 4048 | |
04c9666a | 4049 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
a33d1f77 | 4050 | switch (r_type) |
5bd4f169 AM |
4051 | { |
4052 | case R_PPC64_GNU_VTINHERIT: | |
4053 | case R_PPC64_GNU_VTENTRY: | |
4054 | break; | |
4055 | ||
4056 | default: | |
4057 | switch (h->root.type) | |
4058 | { | |
4059 | case bfd_link_hash_defined: | |
4060 | case bfd_link_hash_defweak: | |
1e2f5b6e AM |
4061 | fdh = (struct ppc_link_hash_entry *) h; |
4062 | ||
4063 | /* Function descriptor syms cause the associated | |
4064 | function code sym section to be marked. */ | |
4065 | if (fdh->is_func_descriptor) | |
4066 | rsec = fdh->oh->root.u.def.section; | |
4067 | ||
4068 | /* Function entry syms return NULL if they are in .opd | |
4069 | and are not ._start (or others undefined on the ld | |
4070 | command line). Thus we avoid marking all function | |
b34976b6 | 4071 | sections, as all functions are referenced in .opd. */ |
1e2f5b6e AM |
4072 | else if ((fdh->oh != NULL |
4073 | && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry) | |
f0abc2a1 | 4074 | || ppc64_elf_section_data (sec)->opd.func_sec == NULL) |
1e2f5b6e AM |
4075 | rsec = h->root.u.def.section; |
4076 | break; | |
5bd4f169 AM |
4077 | |
4078 | case bfd_link_hash_common: | |
1e2f5b6e AM |
4079 | rsec = h->root.u.c.p->section; |
4080 | break; | |
5bd4f169 AM |
4081 | |
4082 | default: | |
4083 | break; | |
4084 | } | |
4085 | } | |
4086 | } | |
4087 | else | |
4088 | { | |
1e2f5b6e AM |
4089 | asection **opd_sym_section; |
4090 | ||
4091 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
f0abc2a1 | 4092 | opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec; |
1e2f5b6e AM |
4093 | if (opd_sym_section != NULL) |
4094 | rsec = opd_sym_section[sym->st_value / 24]; | |
f0abc2a1 | 4095 | else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL) |
1e2f5b6e | 4096 | rsec = NULL; |
5bd4f169 AM |
4097 | } |
4098 | ||
1e2f5b6e | 4099 | return rsec; |
5bd4f169 AM |
4100 | } |
4101 | ||
65f38f15 AM |
4102 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
4103 | section being removed. */ | |
5bd4f169 | 4104 | |
b34976b6 | 4105 | static bfd_boolean |
5bd4f169 AM |
4106 | ppc64_elf_gc_sweep_hook (abfd, info, sec, relocs) |
4107 | bfd *abfd; | |
411e1bfb | 4108 | struct bfd_link_info *info; |
5bd4f169 AM |
4109 | asection *sec; |
4110 | const Elf_Internal_Rela *relocs; | |
4111 | { | |
411e1bfb | 4112 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
4113 | Elf_Internal_Shdr *symtab_hdr; |
4114 | struct elf_link_hash_entry **sym_hashes; | |
411e1bfb | 4115 | struct got_entry **local_got_ents; |
5bd4f169 | 4116 | const Elf_Internal_Rela *rel, *relend; |
5bd4f169 | 4117 | |
ec338859 AM |
4118 | elf_section_data (sec)->local_dynrel = NULL; |
4119 | ||
411e1bfb | 4120 | htab = ppc_hash_table (info); |
5bd4f169 AM |
4121 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
4122 | sym_hashes = elf_sym_hashes (abfd); | |
411e1bfb | 4123 | local_got_ents = elf_local_got_ents (abfd); |
5bd4f169 AM |
4124 | |
4125 | relend = relocs + sec->reloc_count; | |
4126 | for (rel = relocs; rel < relend; rel++) | |
a33d1f77 AM |
4127 | { |
4128 | unsigned long r_symndx; | |
04c9666a | 4129 | enum elf_ppc64_reloc_type r_type; |
58ac9f71 | 4130 | struct elf_link_hash_entry *h = NULL; |
411e1bfb | 4131 | char tls_type = 0; |
5bd4f169 | 4132 | |
a33d1f77 | 4133 | r_symndx = ELF64_R_SYM (rel->r_info); |
04c9666a | 4134 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
58ac9f71 AM |
4135 | if (r_symndx >= symtab_hdr->sh_info) |
4136 | { | |
4137 | struct ppc_link_hash_entry *eh; | |
4138 | struct ppc_dyn_relocs **pp; | |
4139 | struct ppc_dyn_relocs *p; | |
4140 | ||
4141 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4142 | eh = (struct ppc_link_hash_entry *) h; | |
4143 | ||
4144 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4145 | if (p->sec == sec) | |
4146 | { | |
4147 | /* Everything must go for SEC. */ | |
4148 | *pp = p->next; | |
4149 | break; | |
4150 | } | |
4151 | } | |
4152 | ||
a33d1f77 AM |
4153 | switch (r_type) |
4154 | { | |
411e1bfb AM |
4155 | case R_PPC64_GOT_TLSLD16: |
4156 | case R_PPC64_GOT_TLSLD16_LO: | |
4157 | case R_PPC64_GOT_TLSLD16_HI: | |
4158 | case R_PPC64_GOT_TLSLD16_HA: | |
4159 | htab->tlsld_got.refcount -= 1; | |
951fd09b | 4160 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
4161 | goto dogot; |
4162 | ||
4163 | case R_PPC64_GOT_TLSGD16: | |
4164 | case R_PPC64_GOT_TLSGD16_LO: | |
4165 | case R_PPC64_GOT_TLSGD16_HI: | |
4166 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 4167 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
4168 | goto dogot; |
4169 | ||
4170 | case R_PPC64_GOT_TPREL16_DS: | |
4171 | case R_PPC64_GOT_TPREL16_LO_DS: | |
4172 | case R_PPC64_GOT_TPREL16_HI: | |
4173 | case R_PPC64_GOT_TPREL16_HA: | |
4174 | tls_type = TLS_TLS | TLS_TPREL; | |
4175 | goto dogot; | |
4176 | ||
4177 | case R_PPC64_GOT_DTPREL16_DS: | |
4178 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
4179 | case R_PPC64_GOT_DTPREL16_HI: | |
4180 | case R_PPC64_GOT_DTPREL16_HA: | |
4181 | tls_type = TLS_TLS | TLS_DTPREL; | |
4182 | goto dogot; | |
4183 | ||
a33d1f77 AM |
4184 | case R_PPC64_GOT16: |
4185 | case R_PPC64_GOT16_DS: | |
4186 | case R_PPC64_GOT16_HA: | |
4187 | case R_PPC64_GOT16_HI: | |
4188 | case R_PPC64_GOT16_LO: | |
4189 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb AM |
4190 | dogot: |
4191 | { | |
4192 | struct got_entry *ent; | |
4193 | ||
58ac9f71 AM |
4194 | if (h != NULL) |
4195 | ent = h->got.glist; | |
411e1bfb AM |
4196 | else |
4197 | ent = local_got_ents[r_symndx]; | |
4198 | ||
4199 | for (; ent != NULL; ent = ent->next) | |
4200 | if (ent->addend == rel->r_addend | |
4201 | && ent->tls_type == tls_type) | |
4202 | break; | |
4203 | if (ent == NULL) | |
4204 | abort (); | |
4205 | if (ent->got.refcount > 0) | |
4206 | ent->got.refcount -= 1; | |
4207 | } | |
a33d1f77 | 4208 | break; |
65f38f15 | 4209 | |
a33d1f77 AM |
4210 | case R_PPC64_PLT16_HA: |
4211 | case R_PPC64_PLT16_HI: | |
4212 | case R_PPC64_PLT16_LO: | |
4213 | case R_PPC64_PLT32: | |
4214 | case R_PPC64_PLT64: | |
721956f4 AM |
4215 | case R_PPC64_REL14: |
4216 | case R_PPC64_REL14_BRNTAKEN: | |
4217 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 | 4218 | case R_PPC64_REL24: |
58ac9f71 | 4219 | if (h != NULL) |
5d1634d7 | 4220 | { |
411e1bfb AM |
4221 | struct plt_entry *ent; |
4222 | ||
411e1bfb AM |
4223 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4224 | if (ent->addend == rel->r_addend) | |
4225 | break; | |
4226 | if (ent == NULL) | |
4227 | abort (); | |
4228 | if (ent->plt.refcount > 0) | |
4229 | ent->plt.refcount -= 1; | |
5d1634d7 | 4230 | } |
e86ce104 | 4231 | break; |
5d1634d7 | 4232 | |
a33d1f77 AM |
4233 | default: |
4234 | break; | |
4235 | } | |
4236 | } | |
b34976b6 | 4237 | return TRUE; |
5bd4f169 AM |
4238 | } |
4239 | ||
e86ce104 AM |
4240 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
4241 | information on function code symbol entries to their corresponding | |
4242 | function descriptor symbol entries. */ | |
b34976b6 | 4243 | static bfd_boolean |
e86ce104 | 4244 | func_desc_adjust (h, inf) |
5bd4f169 | 4245 | struct elf_link_hash_entry *h; |
e86ce104 | 4246 | PTR inf; |
5bd4f169 | 4247 | { |
e86ce104 | 4248 | struct bfd_link_info *info; |
65f38f15 | 4249 | struct ppc_link_hash_table *htab; |
411e1bfb | 4250 | struct plt_entry *ent; |
5bd4f169 | 4251 | |
e92d460e | 4252 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 4253 | return TRUE; |
e86ce104 | 4254 | |
e92d460e AM |
4255 | if (h->root.type == bfd_link_hash_warning) |
4256 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4257 | ||
e86ce104 | 4258 | info = (struct bfd_link_info *) inf; |
65f38f15 | 4259 | htab = ppc_hash_table (info); |
5bd4f169 | 4260 | |
e86ce104 AM |
4261 | /* If this is a function code symbol, transfer dynamic linking |
4262 | information to the function descriptor symbol. */ | |
4263 | if (!((struct ppc_link_hash_entry *) h)->is_func) | |
b34976b6 | 4264 | return TRUE; |
e86ce104 | 4265 | |
805fc799 AM |
4266 | if (h->root.type == bfd_link_hash_undefweak |
4267 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR)) | |
b34976b6 | 4268 | htab->have_undefweak = TRUE; |
805fc799 | 4269 | |
411e1bfb AM |
4270 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4271 | if (ent->plt.refcount > 0) | |
4272 | break; | |
4273 | if (ent != NULL | |
e86ce104 AM |
4274 | && h->root.root.string[0] == '.' |
4275 | && h->root.root.string[1] != '\0') | |
5bd4f169 | 4276 | { |
721956f4 | 4277 | struct elf_link_hash_entry *fdh = ((struct ppc_link_hash_entry *) h)->oh; |
b34976b6 | 4278 | bfd_boolean force_local; |
5bd4f169 | 4279 | |
648cca2c AM |
4280 | /* Find the corresponding function descriptor symbol. Create it |
4281 | as undefined if necessary. */ | |
5bd4f169 | 4282 | |
721956f4 AM |
4283 | if (fdh == NULL) |
4284 | fdh = elf_link_hash_lookup (&htab->elf, h->root.root.string + 1, | |
b34976b6 | 4285 | FALSE, FALSE, TRUE); |
5bd4f169 | 4286 | |
d926e03d AM |
4287 | if (fdh == NULL |
4288 | && info->shared | |
4289 | && (h->root.type == bfd_link_hash_undefined | |
4290 | || h->root.type == bfd_link_hash_undefweak)) | |
648cca2c AM |
4291 | { |
4292 | bfd *abfd; | |
4293 | asymbol *newsym; | |
14a793b2 | 4294 | struct bfd_link_hash_entry *bh; |
648cca2c | 4295 | |
d926e03d | 4296 | abfd = h->root.u.undef.abfd; |
648cca2c AM |
4297 | newsym = bfd_make_empty_symbol (abfd); |
4298 | newsym->name = h->root.root.string + 1; | |
4299 | newsym->section = bfd_und_section_ptr; | |
4300 | newsym->value = 0; | |
4301 | newsym->flags = BSF_OBJECT; | |
4302 | if (h->root.type == bfd_link_hash_undefweak) | |
4303 | newsym->flags |= BSF_WEAK; | |
4304 | ||
14a793b2 | 4305 | bh = &fdh->root; |
648cca2c AM |
4306 | if ( !(_bfd_generic_link_add_one_symbol |
4307 | (info, abfd, newsym->name, newsym->flags, | |
b34976b6 | 4308 | newsym->section, newsym->value, NULL, FALSE, FALSE, &bh))) |
648cca2c | 4309 | { |
b34976b6 | 4310 | return FALSE; |
648cca2c | 4311 | } |
14a793b2 | 4312 | fdh = (struct elf_link_hash_entry *) bh; |
d926e03d | 4313 | fdh->elf_link_hash_flags &= ~ELF_LINK_NON_ELF; |
648cca2c AM |
4314 | } |
4315 | ||
e86ce104 AM |
4316 | if (fdh != NULL |
4317 | && (fdh->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
4318 | && (info->shared | |
4319 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4320 | || (fdh->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0)) | |
4321 | { | |
4322 | if (fdh->dynindx == -1) | |
4323 | if (! bfd_elf64_link_record_dynamic_symbol (info, fdh)) | |
b34976b6 | 4324 | return FALSE; |
e86ce104 AM |
4325 | fdh->elf_link_hash_flags |= (h->elf_link_hash_flags |
4326 | & (ELF_LINK_HASH_REF_REGULAR | |
4327 | | ELF_LINK_HASH_REF_DYNAMIC | |
4328 | | ELF_LINK_HASH_REF_REGULAR_NONWEAK | |
4329 | | ELF_LINK_NON_GOT_REF)); | |
e1fa50e7 AM |
4330 | if (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
4331 | { | |
411e1bfb | 4332 | fdh->plt.plist = h->plt.plist; |
e1fa50e7 AM |
4333 | fdh->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
4334 | } | |
e86ce104 | 4335 | ((struct ppc_link_hash_entry *) fdh)->is_func_descriptor = 1; |
721956f4 | 4336 | ((struct ppc_link_hash_entry *) fdh)->oh = h; |
721956f4 | 4337 | ((struct ppc_link_hash_entry *) h)->oh = fdh; |
e86ce104 AM |
4338 | } |
4339 | ||
4340 | /* Now that the info is on the function descriptor, clear the | |
4341 | function code sym info. Any function code syms for which we | |
4342 | don't have a definition in a regular file, we force local. | |
4343 | This prevents a shared library from exporting syms that have | |
4344 | been imported from another library. Function code syms that | |
4345 | are really in the library we must leave global to prevent the | |
e1fa50e7 | 4346 | linker dragging in a definition from a static library. */ |
ea1e4b0d AM |
4347 | force_local = (info->shared |
4348 | && ((h->elf_link_hash_flags | |
4349 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4350 | || fdh == NULL | |
4351 | || (fdh->elf_link_hash_flags | |
4352 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
4353 | || (fdh->elf_link_hash_flags | |
4354 | & ELF_LINK_FORCED_LOCAL) != 0)); | |
e86ce104 AM |
4355 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
4356 | } | |
4357 | ||
b34976b6 | 4358 | return TRUE; |
e86ce104 | 4359 | } |
40b8271b | 4360 | |
82bd7b59 AM |
4361 | #define MIN_SAVE_FPR 14 |
4362 | #define MAX_SAVE_FPR 31 | |
4363 | ||
e86ce104 | 4364 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
82bd7b59 AM |
4365 | this hook to a) provide some gcc support functions, and b) transfer |
4366 | dynamic linking information gathered so far on function code symbol | |
4367 | entries, to their corresponding function descriptor symbol entries. */ | |
b34976b6 | 4368 | static bfd_boolean |
e86ce104 AM |
4369 | ppc64_elf_func_desc_adjust (obfd, info) |
4370 | bfd *obfd ATTRIBUTE_UNUSED; | |
4371 | struct bfd_link_info *info; | |
4372 | { | |
4373 | struct ppc_link_hash_table *htab; | |
82bd7b59 AM |
4374 | unsigned int lowest_savef = MAX_SAVE_FPR + 2; |
4375 | unsigned int lowest_restf = MAX_SAVE_FPR + 2; | |
4376 | unsigned int i; | |
4377 | struct elf_link_hash_entry *h; | |
721956f4 | 4378 | bfd_byte *p; |
82bd7b59 | 4379 | char sym[10]; |
e86ce104 AM |
4380 | |
4381 | htab = ppc_hash_table (info); | |
82bd7b59 AM |
4382 | |
4383 | if (htab->sfpr == NULL) | |
4384 | /* We don't have any relocs. */ | |
b34976b6 | 4385 | return TRUE; |
82bd7b59 AM |
4386 | |
4387 | /* First provide any missing ._savef* and ._restf* functions. */ | |
4388 | memcpy (sym, "._savef14", 10); | |
4389 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4390 | { | |
4391 | sym[7] = i / 10 + '0'; | |
4392 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4393 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4394 | if (h != NULL |
4395 | && h->root.type == bfd_link_hash_undefined) | |
4396 | { | |
4397 | if (lowest_savef > i) | |
4398 | lowest_savef = i; | |
4399 | h->root.type = bfd_link_hash_defined; | |
4400 | h->root.u.def.section = htab->sfpr; | |
4401 | h->root.u.def.value = (i - lowest_savef) * 4; | |
4402 | h->type = STT_FUNC; | |
4403 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4404 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4405 | } | |
4406 | } | |
4407 | ||
4408 | memcpy (sym, "._restf14", 10); | |
4409 | for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++) | |
4410 | { | |
4411 | sym[7] = i / 10 + '0'; | |
4412 | sym[8] = i % 10 + '0'; | |
b34976b6 | 4413 | h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE); |
82bd7b59 AM |
4414 | if (h != NULL |
4415 | && h->root.type == bfd_link_hash_undefined) | |
4416 | { | |
4417 | if (lowest_restf > i) | |
4418 | lowest_restf = i; | |
4419 | h->root.type = bfd_link_hash_defined; | |
4420 | h->root.u.def.section = htab->sfpr; | |
4421 | h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 | |
4422 | + (i - lowest_restf) * 4); | |
4423 | h->type = STT_FUNC; | |
4424 | h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; | |
4425 | _bfd_elf_link_hash_hide_symbol (info, h, info->shared); | |
4426 | } | |
4427 | } | |
4428 | ||
805fc799 AM |
4429 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, (PTR) info); |
4430 | ||
82bd7b59 AM |
4431 | htab->sfpr->_raw_size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4 |
4432 | + (MAX_SAVE_FPR + 2 - lowest_restf) * 4); | |
4433 | ||
4434 | if (htab->sfpr->_raw_size == 0) | |
805fc799 AM |
4435 | { |
4436 | if (!htab->have_undefweak) | |
4437 | { | |
4438 | _bfd_strip_section_from_output (info, htab->sfpr); | |
b34976b6 | 4439 | return TRUE; |
805fc799 AM |
4440 | } |
4441 | ||
4442 | htab->sfpr->_raw_size = 4; | |
4443 | } | |
82bd7b59 | 4444 | |
721956f4 AM |
4445 | p = (bfd_byte *) bfd_alloc (htab->elf.dynobj, htab->sfpr->_raw_size); |
4446 | if (p == NULL) | |
b34976b6 | 4447 | return FALSE; |
721956f4 AM |
4448 | htab->sfpr->contents = p; |
4449 | ||
4450 | for (i = lowest_savef; i <= MAX_SAVE_FPR; i++) | |
4451 | { | |
4452 | unsigned int fpr = i << 21; | |
4453 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4454 | bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p); | |
4455 | p += 4; | |
4456 | } | |
4457 | if (lowest_savef <= MAX_SAVE_FPR) | |
4458 | { | |
82bd7b59 AM |
4459 | bfd_put_32 (htab->elf.dynobj, BLR, p); |
4460 | p += 4; | |
721956f4 | 4461 | } |
82bd7b59 | 4462 | |
721956f4 AM |
4463 | for (i = lowest_restf; i <= MAX_SAVE_FPR; i++) |
4464 | { | |
4465 | unsigned int fpr = i << 21; | |
4466 | unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8; | |
4467 | bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p); | |
82bd7b59 AM |
4468 | p += 4; |
4469 | } | |
721956f4 AM |
4470 | if (lowest_restf <= MAX_SAVE_FPR |
4471 | || htab->sfpr->_raw_size == 4) | |
4472 | { | |
4473 | bfd_put_32 (htab->elf.dynobj, BLR, p); | |
4474 | } | |
82bd7b59 | 4475 | |
b34976b6 | 4476 | return TRUE; |
e86ce104 AM |
4477 | } |
4478 | ||
4479 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
4480 | regular object. The current definition is in some section of the | |
4481 | dynamic object, but we're not including those sections. We have to | |
4482 | change the definition to something the rest of the link can | |
4483 | understand. */ | |
4484 | ||
b34976b6 | 4485 | static bfd_boolean |
e86ce104 AM |
4486 | ppc64_elf_adjust_dynamic_symbol (info, h) |
4487 | struct bfd_link_info *info; | |
4488 | struct elf_link_hash_entry *h; | |
4489 | { | |
4490 | struct ppc_link_hash_table *htab; | |
e86ce104 AM |
4491 | asection *s; |
4492 | unsigned int power_of_two; | |
4493 | ||
4494 | htab = ppc_hash_table (info); | |
4495 | ||
4496 | /* Deal with function syms. */ | |
4497 | if (h->type == STT_FUNC | |
4498 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
4499 | { | |
4500 | /* Clear procedure linkage table information for any symbol that | |
4501 | won't need a .plt entry. */ | |
411e1bfb AM |
4502 | struct plt_entry *ent; |
4503 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4504 | if (ent->plt.refcount > 0) | |
4505 | break; | |
e86ce104 | 4506 | if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor |
411e1bfb | 4507 | || ent == NULL |
9c7a29a3 AM |
4508 | || SYMBOL_CALLS_LOCAL (info, h) |
4509 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4510 | && h->root.type == bfd_link_hash_undefweak)) | |
40b8271b | 4511 | { |
411e1bfb | 4512 | h->plt.plist = NULL; |
40b8271b | 4513 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
40b8271b | 4514 | } |
5bd4f169 | 4515 | } |
bbd7ec4a | 4516 | else |
411e1bfb | 4517 | h->plt.plist = NULL; |
5bd4f169 AM |
4518 | |
4519 | /* If this is a weak symbol, and there is a real definition, the | |
4520 | processor independent code will have arranged for us to see the | |
4521 | real definition first, and we can just use the same value. */ | |
4522 | if (h->weakdef != NULL) | |
4523 | { | |
4524 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
4525 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
4526 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
4527 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
a23b6845 AM |
4528 | if (ELIMINATE_COPY_RELOCS) |
4529 | h->elf_link_hash_flags | |
4530 | = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF) | |
4531 | | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF)); | |
b34976b6 | 4532 | return TRUE; |
5bd4f169 AM |
4533 | } |
4534 | ||
4535 | /* This is a reference to a symbol defined by a dynamic object which | |
4536 | is not a function. */ | |
4537 | ||
4538 | /* If we are creating a shared library, we must presume that the | |
4539 | only references to the symbol are via the global offset table. | |
4540 | For such cases we need not do anything here; the relocations will | |
4541 | be handled correctly by relocate_section. */ | |
4542 | if (info->shared) | |
b34976b6 | 4543 | return TRUE; |
5bd4f169 | 4544 | |
65f38f15 AM |
4545 | /* If there are no references to this symbol that do not use the |
4546 | GOT, we don't need to generate a copy reloc. */ | |
4547 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 4548 | return TRUE; |
65f38f15 | 4549 | |
f4656909 | 4550 | if (ELIMINATE_COPY_RELOCS) |
65f38f15 | 4551 | { |
f4656909 AM |
4552 | struct ppc_link_hash_entry * eh; |
4553 | struct ppc_dyn_relocs *p; | |
65f38f15 | 4554 | |
f4656909 AM |
4555 | eh = (struct ppc_link_hash_entry *) h; |
4556 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
4557 | { | |
4558 | s = p->sec->output_section; | |
4559 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
4560 | break; | |
4561 | } | |
4562 | ||
4563 | /* If we didn't find any dynamic relocs in read-only sections, then | |
4564 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
4565 | if (p == NULL) | |
4566 | { | |
4567 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
4568 | return TRUE; | |
4569 | } | |
65f38f15 AM |
4570 | } |
4571 | ||
5bd4f169 AM |
4572 | /* We must allocate the symbol in our .dynbss section, which will |
4573 | become part of the .bss section of the executable. There will be | |
4574 | an entry for this symbol in the .dynsym section. The dynamic | |
4575 | object will contain position independent code, so all references | |
4576 | from the dynamic object to this symbol will go through the global | |
4577 | offset table. The dynamic linker will use the .dynsym entry to | |
4578 | determine the address it must put in the global offset table, so | |
4579 | both the dynamic object and the regular object will refer to the | |
4580 | same memory location for the variable. */ | |
5bd4f169 | 4581 | |
04c9666a AM |
4582 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
4583 | to copy the initial value out of the dynamic object and into the | |
5bd4f169 AM |
4584 | runtime process image. We need to remember the offset into the |
4585 | .rela.bss section we are going to use. */ | |
4586 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4587 | { | |
65f38f15 | 4588 | htab->srelbss->_raw_size += sizeof (Elf64_External_Rela); |
5bd4f169 AM |
4589 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
4590 | } | |
4591 | ||
4592 | /* We need to figure out the alignment required for this symbol. I | |
4593 | have no idea how ELF linkers handle this. */ | |
4594 | power_of_two = bfd_log2 (h->size); | |
4595 | if (power_of_two > 4) | |
4596 | power_of_two = 4; | |
4597 | ||
4598 | /* Apply the required alignment. */ | |
65f38f15 AM |
4599 | s = htab->sdynbss; |
4600 | s->_raw_size = BFD_ALIGN (s->_raw_size, (bfd_size_type) (1 << power_of_two)); | |
4601 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
5bd4f169 | 4602 | { |
65f38f15 | 4603 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 4604 | return FALSE; |
5bd4f169 AM |
4605 | } |
4606 | ||
4607 | /* Define the symbol as being at this point in the section. */ | |
4608 | h->root.u.def.section = s; | |
4609 | h->root.u.def.value = s->_raw_size; | |
4610 | ||
4611 | /* Increment the section size to make room for the symbol. */ | |
4612 | s->_raw_size += h->size; | |
4613 | ||
b34976b6 | 4614 | return TRUE; |
5bd4f169 AM |
4615 | } |
4616 | ||
e86ce104 AM |
4617 | /* If given a function descriptor symbol, hide both the function code |
4618 | sym and the descriptor. */ | |
4619 | static void | |
4620 | ppc64_elf_hide_symbol (info, h, force_local) | |
4621 | struct bfd_link_info *info; | |
4622 | struct elf_link_hash_entry *h; | |
b34976b6 | 4623 | bfd_boolean force_local; |
e86ce104 AM |
4624 | { |
4625 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); | |
4626 | ||
4627 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) | |
4628 | { | |
721956f4 | 4629 | struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh; |
e86ce104 | 4630 | |
721956f4 | 4631 | if (fh == NULL) |
d1329ca3 AM |
4632 | { |
4633 | const char *p, *q; | |
4634 | struct ppc_link_hash_table *htab; | |
4635 | char save; | |
4636 | ||
4637 | /* We aren't supposed to use alloca in BFD because on | |
4638 | systems which do not have alloca the version in libiberty | |
4639 | calls xmalloc, which might cause the program to crash | |
4640 | when it runs out of memory. This function doesn't have a | |
4641 | return status, so there's no way to gracefully return an | |
4642 | error. So cheat. We know that string[-1] can be safely | |
4643 | dereferenced; It's either a string in an ELF string | |
4644 | table, or allocated in an objalloc structure. */ | |
4645 | ||
4646 | p = h->root.root.string - 1; | |
4647 | save = *p; | |
4648 | *(char *) p = '.'; | |
4649 | htab = ppc_hash_table (info); | |
b34976b6 | 4650 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4651 | *(char *) p = save; |
4652 | ||
4653 | /* Unfortunately, if it so happens that the string we were | |
4654 | looking for was allocated immediately before this string, | |
4655 | then we overwrote the string terminator. That's the only | |
4656 | reason the lookup should fail. */ | |
4657 | if (fh == NULL) | |
4658 | { | |
4659 | q = h->root.root.string + strlen (h->root.root.string); | |
4660 | while (q >= h->root.root.string && *q == *p) | |
4661 | --q, --p; | |
4662 | if (q < h->root.root.string && *p == '.') | |
b34976b6 | 4663 | fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); |
d1329ca3 AM |
4664 | } |
4665 | if (fh != NULL) | |
4666 | { | |
4667 | ((struct ppc_link_hash_entry *) h)->oh = fh; | |
4668 | ((struct ppc_link_hash_entry *) fh)->oh = h; | |
4669 | } | |
4670 | } | |
e86ce104 AM |
4671 | if (fh != NULL) |
4672 | _bfd_elf_link_hash_hide_symbol (info, fh, force_local); | |
4673 | } | |
4674 | } | |
4675 | ||
411e1bfb | 4676 | static bfd_boolean |
e7b938ca | 4677 | get_sym_h (hp, symp, symsecp, tls_maskp, locsymsp, r_symndx, ibfd) |
411e1bfb AM |
4678 | struct elf_link_hash_entry **hp; |
4679 | Elf_Internal_Sym **symp; | |
4680 | asection **symsecp; | |
e7b938ca | 4681 | char **tls_maskp; |
411e1bfb AM |
4682 | Elf_Internal_Sym **locsymsp; |
4683 | unsigned long r_symndx; | |
4684 | bfd *ibfd; | |
4685 | { | |
4686 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
4687 | ||
4688 | if (r_symndx >= symtab_hdr->sh_info) | |
4689 | { | |
4690 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4691 | struct elf_link_hash_entry *h; | |
4692 | ||
4693 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4694 | while (h->root.type == bfd_link_hash_indirect | |
4695 | || h->root.type == bfd_link_hash_warning) | |
4696 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4697 | ||
4698 | if (hp != NULL) | |
4699 | *hp = h; | |
4700 | ||
4701 | if (symp != NULL) | |
4702 | *symp = NULL; | |
4703 | ||
4704 | if (symsecp != NULL) | |
4705 | { | |
4706 | asection *symsec = NULL; | |
4707 | if (h->root.type == bfd_link_hash_defined | |
4708 | || h->root.type == bfd_link_hash_defweak) | |
4709 | symsec = h->root.u.def.section; | |
4710 | *symsecp = symsec; | |
4711 | } | |
4712 | ||
e7b938ca | 4713 | if (tls_maskp != NULL) |
411e1bfb AM |
4714 | { |
4715 | struct ppc_link_hash_entry *eh; | |
4716 | ||
4717 | eh = (struct ppc_link_hash_entry *) h; | |
e7b938ca | 4718 | *tls_maskp = &eh->tls_mask; |
411e1bfb AM |
4719 | } |
4720 | } | |
4721 | else | |
4722 | { | |
4723 | Elf_Internal_Sym *sym; | |
4724 | Elf_Internal_Sym *locsyms = *locsymsp; | |
4725 | ||
4726 | if (locsyms == NULL) | |
4727 | { | |
4728 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4729 | if (locsyms == NULL) | |
4730 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4731 | symtab_hdr->sh_info, | |
4732 | 0, NULL, NULL, NULL); | |
4733 | if (locsyms == NULL) | |
4734 | return FALSE; | |
4735 | *locsymsp = locsyms; | |
4736 | } | |
4737 | sym = locsyms + r_symndx; | |
4738 | ||
4739 | if (hp != NULL) | |
4740 | *hp = NULL; | |
4741 | ||
4742 | if (symp != NULL) | |
4743 | *symp = sym; | |
4744 | ||
4745 | if (symsecp != NULL) | |
4746 | { | |
4747 | asection *symsec = NULL; | |
4748 | if ((sym->st_shndx != SHN_UNDEF | |
4749 | && sym->st_shndx < SHN_LORESERVE) | |
4750 | || sym->st_shndx > SHN_HIRESERVE) | |
4751 | symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx); | |
4752 | *symsecp = symsec; | |
4753 | } | |
4754 | ||
e7b938ca | 4755 | if (tls_maskp != NULL) |
411e1bfb AM |
4756 | { |
4757 | struct got_entry **lgot_ents; | |
e7b938ca | 4758 | char *tls_mask; |
411e1bfb | 4759 | |
e7b938ca | 4760 | tls_mask = NULL; |
411e1bfb AM |
4761 | lgot_ents = elf_local_got_ents (ibfd); |
4762 | if (lgot_ents != NULL) | |
4763 | { | |
e7b938ca AM |
4764 | char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info); |
4765 | tls_mask = &lgot_masks[r_symndx]; | |
411e1bfb | 4766 | } |
e7b938ca | 4767 | *tls_maskp = tls_mask; |
411e1bfb AM |
4768 | } |
4769 | } | |
4770 | return TRUE; | |
4771 | } | |
4772 | ||
e7b938ca | 4773 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
951fd09b AM |
4774 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
4775 | type suitable for optimization, and 1 otherwise. */ | |
4776 | ||
4777 | static int | |
e7b938ca AM |
4778 | get_tls_mask (tls_maskp, locsymsp, rel, ibfd) |
4779 | char **tls_maskp; | |
411e1bfb AM |
4780 | Elf_Internal_Sym **locsymsp; |
4781 | const Elf_Internal_Rela *rel; | |
4782 | bfd *ibfd; | |
4783 | { | |
4784 | unsigned long r_symndx; | |
951fd09b | 4785 | unsigned int next_r; |
411e1bfb AM |
4786 | struct elf_link_hash_entry *h; |
4787 | Elf_Internal_Sym *sym; | |
4788 | asection *sec; | |
4789 | bfd_vma off; | |
4790 | ||
4791 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 4792 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b | 4793 | return 0; |
411e1bfb | 4794 | |
e7b938ca | 4795 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
411e1bfb AM |
4796 | || sec == NULL |
4797 | || ppc64_elf_section_data (sec)->t_symndx == NULL) | |
951fd09b | 4798 | return 1; |
411e1bfb AM |
4799 | |
4800 | /* Look inside a TOC section too. */ | |
4801 | if (h != NULL) | |
4802 | { | |
4803 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
4804 | off = h->root.u.def.value; | |
4805 | } | |
4806 | else | |
4807 | off = sym->st_value; | |
4808 | off += rel->r_addend; | |
4809 | BFD_ASSERT (off % 8 == 0); | |
4810 | r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8]; | |
951fd09b | 4811 | next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1]; |
e7b938ca | 4812 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
951fd09b AM |
4813 | return 0; |
4814 | if (h == NULL | |
4815 | || h->root.type == bfd_link_hash_defined | |
4816 | || h->root.type == bfd_link_hash_defweak) | |
4817 | { | |
4818 | if (next_r == (unsigned) -1) | |
4819 | return 2; | |
4820 | if (next_r == (unsigned) -2 | |
4821 | && (h == NULL | |
4822 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
4823 | return 3; | |
4824 | } | |
4825 | return 1; | |
411e1bfb AM |
4826 | } |
4827 | ||
b34976b6 | 4828 | bfd_boolean |
d6fe2dc1 | 4829 | ppc64_elf_edit_opd (obfd, info) |
1e2f5b6e AM |
4830 | bfd *obfd; |
4831 | struct bfd_link_info *info; | |
4832 | { | |
4833 | bfd *ibfd; | |
1e2f5b6e | 4834 | |
411e1bfb | 4835 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
1e2f5b6e AM |
4836 | { |
4837 | asection *sec; | |
4838 | Elf_Internal_Rela *relstart, *rel, *relend; | |
4839 | Elf_Internal_Shdr *symtab_hdr; | |
6cdc0ccc | 4840 | Elf_Internal_Sym *local_syms; |
1e2f5b6e AM |
4841 | struct elf_link_hash_entry **sym_hashes; |
4842 | bfd_vma offset; | |
d6fe2dc1 | 4843 | bfd_size_type amt; |
1e2f5b6e | 4844 | long *adjust; |
b34976b6 | 4845 | bfd_boolean need_edit; |
1e2f5b6e AM |
4846 | |
4847 | sec = bfd_get_section_by_name (ibfd, ".opd"); | |
4848 | if (sec == NULL) | |
4849 | continue; | |
4850 | ||
d6fe2dc1 | 4851 | amt = sec->_raw_size * sizeof (long) / 24; |
f0abc2a1 | 4852 | adjust = ppc64_elf_section_data (sec)->opd.adjust; |
d6fe2dc1 AM |
4853 | if (adjust == NULL) |
4854 | { | |
4855 | /* Must be a ld -r link. ie. check_relocs hasn't been | |
4856 | called. */ | |
4857 | adjust = (long *) bfd_zalloc (obfd, amt); | |
f0abc2a1 | 4858 | ppc64_elf_section_data (sec)->opd.adjust = adjust; |
d6fe2dc1 AM |
4859 | } |
4860 | memset (adjust, 0, (size_t) amt); | |
1e2f5b6e AM |
4861 | |
4862 | if (sec->output_section == bfd_abs_section_ptr) | |
4863 | continue; | |
4864 | ||
4865 | /* Look through the section relocs. */ | |
4866 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
4867 | continue; | |
4868 | ||
6cdc0ccc | 4869 | local_syms = NULL; |
1e2f5b6e AM |
4870 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
4871 | sym_hashes = elf_sym_hashes (ibfd); | |
4872 | ||
4873 | /* Read the relocations. */ | |
45d6a902 AM |
4874 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, (PTR) NULL, |
4875 | (Elf_Internal_Rela *) NULL, | |
4876 | info->keep_memory); | |
1e2f5b6e | 4877 | if (relstart == NULL) |
b34976b6 | 4878 | return FALSE; |
1e2f5b6e AM |
4879 | |
4880 | /* First run through the relocs to check they are sane, and to | |
4881 | determine whether we need to edit this opd section. */ | |
b34976b6 | 4882 | need_edit = FALSE; |
1e2f5b6e AM |
4883 | offset = 0; |
4884 | relend = relstart + sec->reloc_count; | |
4885 | for (rel = relstart; rel < relend; rel++) | |
4886 | { | |
04c9666a | 4887 | enum elf_ppc64_reloc_type r_type; |
1e2f5b6e AM |
4888 | unsigned long r_symndx; |
4889 | asection *sym_sec; | |
4890 | struct elf_link_hash_entry *h; | |
4891 | Elf_Internal_Sym *sym; | |
4892 | ||
4893 | /* .opd contains a regular array of 24 byte entries. We're | |
4894 | only interested in the reloc pointing to a function entry | |
4895 | point. */ | |
04c9666a | 4896 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
1e2f5b6e AM |
4897 | if (r_type == R_PPC64_TOC) |
4898 | continue; | |
4899 | ||
4900 | if (r_type != R_PPC64_ADDR64) | |
4901 | { | |
4902 | (*_bfd_error_handler) | |
4903 | (_("%s: unexpected reloc type %u in .opd section"), | |
4904 | bfd_archive_filename (ibfd), r_type); | |
b34976b6 | 4905 | need_edit = FALSE; |
1e2f5b6e AM |
4906 | break; |
4907 | } | |
4908 | ||
4909 | if (rel + 1 >= relend) | |
4910 | continue; | |
04c9666a | 4911 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE ((rel + 1)->r_info); |
1e2f5b6e AM |
4912 | if (r_type != R_PPC64_TOC) |
4913 | continue; | |
4914 | ||
4915 | if (rel->r_offset != offset) | |
4916 | { | |
4917 | /* If someone messes with .opd alignment then after a | |
4918 | "ld -r" we might have padding in the middle of .opd. | |
4919 | Also, there's nothing to prevent someone putting | |
4920 | something silly in .opd with the assembler. No .opd | |
b34976b6 | 4921 | optimization for them! */ |
1e2f5b6e AM |
4922 | (*_bfd_error_handler) |
4923 | (_("%s: .opd is not a regular array of opd entries"), | |
4924 | bfd_archive_filename (ibfd)); | |
b34976b6 | 4925 | need_edit = FALSE; |
1e2f5b6e AM |
4926 | break; |
4927 | } | |
4928 | ||
4929 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
4930 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
4931 | r_symndx, ibfd)) | |
4932 | goto error_free_rel; | |
1e2f5b6e AM |
4933 | |
4934 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
4935 | { | |
411e1bfb AM |
4936 | const char *sym_name; |
4937 | if (h != NULL) | |
4938 | sym_name = h->root.root.string; | |
4939 | else | |
4940 | sym_name = bfd_elf_local_sym_name (ibfd, sym); | |
4941 | ||
1e2f5b6e AM |
4942 | (*_bfd_error_handler) |
4943 | (_("%s: undefined sym `%s' in .opd section"), | |
4944 | bfd_archive_filename (ibfd), | |
411e1bfb | 4945 | sym_name); |
b34976b6 | 4946 | need_edit = FALSE; |
1e2f5b6e AM |
4947 | break; |
4948 | } | |
4949 | ||
51020317 AM |
4950 | /* opd entries are always for functions defined in the |
4951 | current input bfd. If the symbol isn't defined in the | |
4952 | input bfd, then we won't be using the function in this | |
4953 | bfd; It must be defined in a linkonce section in another | |
4954 | bfd, or is weak. It's also possible that we are | |
4955 | discarding the function due to a linker script /DISCARD/, | |
4956 | which we test for via the output_section. */ | |
4957 | if (sym_sec->owner != ibfd | |
4958 | || sym_sec->output_section == bfd_abs_section_ptr) | |
b34976b6 | 4959 | need_edit = TRUE; |
1e2f5b6e AM |
4960 | |
4961 | offset += 24; | |
4962 | } | |
4963 | ||
4964 | if (need_edit) | |
4965 | { | |
4966 | Elf_Internal_Rela *write_rel; | |
4967 | bfd_byte *rptr, *wptr; | |
b34976b6 | 4968 | bfd_boolean skip; |
1e2f5b6e AM |
4969 | |
4970 | /* This seems a waste of time as input .opd sections are all | |
4971 | zeros as generated by gcc, but I suppose there's no reason | |
4972 | this will always be so. We might start putting something in | |
4973 | the third word of .opd entries. */ | |
4974 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
4975 | { | |
4976 | bfd_byte *loc = bfd_alloc (ibfd, sec->_raw_size); | |
6cdc0ccc AM |
4977 | if (loc == NULL |
4978 | || !bfd_get_section_contents (ibfd, sec, loc, (bfd_vma) 0, | |
4979 | sec->_raw_size)) | |
4980 | { | |
4981 | if (local_syms != NULL | |
4982 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
4983 | free (local_syms); | |
4984 | error_free_rel: | |
4985 | if (elf_section_data (sec)->relocs != relstart) | |
4986 | free (relstart); | |
b34976b6 | 4987 | return FALSE; |
6cdc0ccc | 4988 | } |
1e2f5b6e AM |
4989 | sec->contents = loc; |
4990 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
4991 | } | |
4992 | ||
4993 | elf_section_data (sec)->relocs = relstart; | |
4994 | ||
4995 | wptr = sec->contents; | |
4996 | rptr = sec->contents; | |
4997 | write_rel = relstart; | |
b34976b6 | 4998 | skip = FALSE; |
1e2f5b6e AM |
4999 | offset = 0; |
5000 | for (rel = relstart; rel < relend; rel++) | |
5001 | { | |
5002 | if (rel->r_offset == offset) | |
5003 | { | |
5004 | unsigned long r_symndx; | |
5005 | asection *sym_sec; | |
5006 | struct elf_link_hash_entry *h; | |
5007 | Elf_Internal_Sym *sym; | |
5008 | ||
5009 | r_symndx = ELF64_R_SYM (rel->r_info); | |
411e1bfb AM |
5010 | get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
5011 | r_symndx, ibfd); | |
1e2f5b6e | 5012 | |
51020317 AM |
5013 | skip = (sym_sec->owner != ibfd |
5014 | || sym_sec->output_section == bfd_abs_section_ptr); | |
a4aa0fb7 AM |
5015 | if (skip) |
5016 | { | |
0be617ce | 5017 | if (h != NULL && sym_sec->owner == ibfd) |
a4aa0fb7 AM |
5018 | { |
5019 | /* Arrange for the function descriptor sym | |
5020 | to be dropped. */ | |
d6fe2dc1 | 5021 | struct ppc_link_hash_entry *fdh; |
a4aa0fb7 AM |
5022 | struct ppc_link_hash_entry *fh; |
5023 | ||
5024 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
5025 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
5026 | if (fdh == NULL) | |
5027 | { | |
5028 | const char *fd_name; | |
5029 | struct ppc_link_hash_table *htab; | |
5030 | ||
5031 | fd_name = h->root.root.string + 1; | |
5032 | htab = ppc_hash_table (info); | |
5033 | fdh = (struct ppc_link_hash_entry *) | |
5034 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 5035 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
5036 | fdh->is_func_descriptor = 1; |
5037 | fdh->oh = &fh->elf; | |
5038 | fh->is_func = 1; | |
5039 | fh->oh = &fdh->elf; | |
5040 | } | |
5041 | ||
5042 | fdh->elf.root.u.def.value = 0; | |
5043 | fdh->elf.root.u.def.section = sym_sec; | |
a4aa0fb7 AM |
5044 | } |
5045 | } | |
5046 | else | |
1e2f5b6e AM |
5047 | { |
5048 | /* We'll be keeping this opd entry. */ | |
5049 | ||
5050 | if (h != NULL) | |
5051 | { | |
5052 | /* Redefine the function descriptor symbol | |
5053 | to this location in the opd section. | |
5054 | We've checked above that opd relocs are | |
5055 | ordered. */ | |
d6fe2dc1 | 5056 | struct ppc_link_hash_entry *fdh; |
1e2f5b6e AM |
5057 | struct ppc_link_hash_entry *fh; |
5058 | ||
5059 | fh = (struct ppc_link_hash_entry *) h; | |
d6fe2dc1 AM |
5060 | fdh = (struct ppc_link_hash_entry *) fh->oh; |
5061 | if (fdh == NULL) | |
5062 | { | |
5063 | const char *fd_name; | |
5064 | struct ppc_link_hash_table *htab; | |
5065 | ||
5066 | fd_name = h->root.root.string + 1; | |
5067 | htab = ppc_hash_table (info); | |
5068 | fdh = (struct ppc_link_hash_entry *) | |
5069 | elf_link_hash_lookup (&htab->elf, fd_name, | |
b34976b6 | 5070 | FALSE, FALSE, FALSE); |
d6fe2dc1 AM |
5071 | fdh->is_func_descriptor = 1; |
5072 | fdh->oh = &fh->elf; | |
5073 | fh->is_func = 1; | |
5074 | fh->oh = &fdh->elf; | |
5075 | } | |
5076 | ||
5077 | fdh->elf.root.u.def.value = wptr - sec->contents; | |
1e2f5b6e AM |
5078 | } |
5079 | else | |
5080 | { | |
6cdc0ccc AM |
5081 | /* Local syms are a bit tricky. We could |
5082 | tweak them as they can be cached, but | |
5083 | we'd need to look through the local syms | |
5084 | for the function descriptor sym which we | |
5085 | don't have at the moment. So keep an | |
b34976b6 | 5086 | array of adjustments. */ |
7f6a7663 | 5087 | adjust[rel->r_offset / 24] = wptr - rptr; |
1e2f5b6e AM |
5088 | } |
5089 | ||
5090 | if (wptr != rptr) | |
5091 | memcpy (wptr, rptr, 24); | |
5092 | wptr += 24; | |
5093 | } | |
5094 | rptr += 24; | |
5095 | offset += 24; | |
5096 | } | |
5097 | ||
5098 | /* We need to adjust any reloc offsets to point to the | |
5099 | new opd entries. While we're at it, we may as well | |
5100 | remove redundant relocs. */ | |
5101 | if (!skip) | |
5102 | { | |
5103 | rel->r_offset += wptr - rptr; | |
5104 | if (write_rel != rel) | |
5105 | memcpy (write_rel, rel, sizeof (*rel)); | |
5106 | ++write_rel; | |
5107 | } | |
5108 | } | |
5109 | ||
5110 | sec->_cooked_size = wptr - sec->contents; | |
5111 | sec->reloc_count = write_rel - relstart; | |
cdcf6e38 AM |
5112 | /* Fudge the size too, as this is used later in |
5113 | elf_bfd_final_link if we are emitting relocs. */ | |
5114 | elf_section_data (sec)->rel_hdr.sh_size | |
5115 | = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize; | |
5116 | BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL); | |
1e2f5b6e | 5117 | } |
6cdc0ccc | 5118 | else if (elf_section_data (sec)->relocs != relstart) |
1e2f5b6e | 5119 | free (relstart); |
6cdc0ccc | 5120 | |
411e1bfb AM |
5121 | if (local_syms != NULL |
5122 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
5123 | { | |
5124 | if (!info->keep_memory) | |
5125 | free (local_syms); | |
5126 | else | |
5127 | symtab_hdr->contents = (unsigned char *) local_syms; | |
5128 | } | |
5129 | } | |
5130 | ||
5131 | return TRUE; | |
5132 | } | |
5133 | ||
951fd09b | 5134 | /* Set htab->tls_sec. */ |
411e1bfb AM |
5135 | |
5136 | bfd_boolean | |
951fd09b | 5137 | ppc64_elf_tls_setup (obfd, info) |
411e1bfb AM |
5138 | bfd *obfd; |
5139 | struct bfd_link_info *info; | |
5140 | { | |
5141 | asection *tls; | |
411e1bfb AM |
5142 | struct ppc_link_hash_table *htab; |
5143 | ||
411e1bfb AM |
5144 | for (tls = obfd->sections; tls != NULL; tls = tls->next) |
5145 | if ((tls->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5146 | == (SEC_THREAD_LOCAL | SEC_LOAD)) | |
5147 | break; | |
411e1bfb AM |
5148 | |
5149 | htab = ppc_hash_table (info); | |
5150 | htab->tls_sec = tls; | |
a48ebf4d AM |
5151 | |
5152 | if (htab->tls_get_addr != NULL) | |
5153 | { | |
5154 | struct elf_link_hash_entry *h = htab->tls_get_addr; | |
5155 | ||
5156 | while (h->root.type == bfd_link_hash_indirect | |
5157 | || h->root.type == bfd_link_hash_warning) | |
5158 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5159 | ||
5160 | htab->tls_get_addr = h; | |
5161 | } | |
5162 | ||
951fd09b AM |
5163 | return tls != NULL; |
5164 | } | |
411e1bfb | 5165 | |
951fd09b AM |
5166 | /* Run through all the TLS relocs looking for optimization |
5167 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
5168 | a preliminary section layout so that we know the TLS segment | |
5169 | offsets. We can't optimize earlier because some optimizations need | |
5170 | to know the tp offset, and we need to optimize before allocating | |
5171 | dynamic relocations. */ | |
5172 | ||
5173 | bfd_boolean | |
5174 | ppc64_elf_tls_optimize (obfd, info) | |
5175 | bfd *obfd ATTRIBUTE_UNUSED; | |
5176 | struct bfd_link_info *info; | |
5177 | { | |
5178 | bfd *ibfd; | |
5179 | asection *sec; | |
5180 | struct ppc_link_hash_table *htab; | |
5181 | ||
5182 | if (info->relocateable || info->shared) | |
411e1bfb AM |
5183 | return TRUE; |
5184 | ||
951fd09b | 5185 | htab = ppc_hash_table (info); |
411e1bfb AM |
5186 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) |
5187 | { | |
5188 | Elf_Internal_Sym *locsyms = NULL; | |
5189 | ||
5190 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
5191 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5192 | { | |
5193 | Elf_Internal_Rela *relstart, *rel, *relend; | |
5194 | int expecting_tls_get_addr; | |
5195 | ||
5196 | /* Read the relocations. */ | |
45d6a902 AM |
5197 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, (PTR) NULL, |
5198 | (Elf_Internal_Rela *) NULL, | |
5199 | info->keep_memory); | |
411e1bfb AM |
5200 | if (relstart == NULL) |
5201 | return FALSE; | |
5202 | ||
5203 | expecting_tls_get_addr = 0; | |
5204 | relend = relstart + sec->reloc_count; | |
5205 | for (rel = relstart; rel < relend; rel++) | |
5206 | { | |
5207 | enum elf_ppc64_reloc_type r_type; | |
5208 | unsigned long r_symndx; | |
5209 | struct elf_link_hash_entry *h; | |
5210 | Elf_Internal_Sym *sym; | |
5211 | asection *sym_sec; | |
e7b938ca AM |
5212 | char *tls_mask; |
5213 | char tls_set, tls_clear, tls_type = 0; | |
411e1bfb | 5214 | bfd_vma value; |
951fd09b | 5215 | bfd_boolean ok_tprel, is_local; |
411e1bfb AM |
5216 | |
5217 | r_symndx = ELF64_R_SYM (rel->r_info); | |
e7b938ca | 5218 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, |
411e1bfb AM |
5219 | r_symndx, ibfd)) |
5220 | { | |
5221 | err_free_rel: | |
5222 | if (elf_section_data (sec)->relocs != relstart) | |
5223 | free (relstart); | |
5224 | if (locsyms != NULL | |
5225 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5226 | != (unsigned char *) locsyms)) | |
5227 | free (locsyms); | |
5228 | return FALSE; | |
5229 | } | |
5230 | ||
5231 | if (h != NULL) | |
5232 | { | |
5233 | if (h->root.type != bfd_link_hash_defined | |
5234 | && h->root.type != bfd_link_hash_defweak) | |
5235 | continue; | |
5236 | value = h->root.u.def.value; | |
5237 | } | |
5238 | else | |
5239 | value = sym->st_value; | |
951fd09b | 5240 | |
411e1bfb | 5241 | ok_tprel = FALSE; |
951fd09b AM |
5242 | is_local = FALSE; |
5243 | if (h == NULL | |
5244 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5245 | { |
951fd09b | 5246 | is_local = TRUE; |
411e1bfb AM |
5247 | value += sym_sec->output_offset; |
5248 | value += sym_sec->output_section->vma; | |
5249 | value -= htab->tls_sec->vma; | |
5250 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
5251 | < (bfd_vma) 1 << 32); | |
5252 | } | |
5253 | ||
5254 | r_type | |
5255 | = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); | |
5256 | switch (r_type) | |
5257 | { | |
5258 | case R_PPC64_GOT_TLSLD16: | |
5259 | case R_PPC64_GOT_TLSLD16_LO: | |
5260 | case R_PPC64_GOT_TLSLD16_HI: | |
5261 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b AM |
5262 | /* These relocs should never be against a symbol |
5263 | defined in a shared lib. Leave them alone if | |
5264 | that turns out to be the case. */ | |
d881513a | 5265 | htab->tlsld_got.refcount -= 1; |
951fd09b AM |
5266 | if (!is_local) |
5267 | continue; | |
5268 | ||
951fd09b AM |
5269 | /* LD -> LE */ |
5270 | tls_set = 0; | |
5271 | tls_clear = TLS_LD; | |
e7b938ca | 5272 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
5273 | expecting_tls_get_addr = 1; |
5274 | break; | |
5275 | ||
5276 | case R_PPC64_GOT_TLSGD16: | |
5277 | case R_PPC64_GOT_TLSGD16_LO: | |
5278 | case R_PPC64_GOT_TLSGD16_HI: | |
5279 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 5280 | if (ok_tprel) |
411e1bfb AM |
5281 | /* GD -> LE */ |
5282 | tls_set = 0; | |
5283 | else | |
5284 | /* GD -> IE */ | |
951fd09b AM |
5285 | tls_set = TLS_TLS | TLS_TPRELGD; |
5286 | tls_clear = TLS_GD; | |
e7b938ca | 5287 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
5288 | expecting_tls_get_addr = 1; |
5289 | break; | |
5290 | ||
5291 | case R_PPC64_GOT_TPREL16_DS: | |
5292 | case R_PPC64_GOT_TPREL16_LO_DS: | |
5293 | case R_PPC64_GOT_TPREL16_HI: | |
5294 | case R_PPC64_GOT_TPREL16_HA: | |
5295 | expecting_tls_get_addr = 0; | |
5296 | if (ok_tprel) | |
5297 | { | |
5298 | /* IE -> LE */ | |
5299 | tls_set = 0; | |
5300 | tls_clear = TLS_TPREL; | |
e7b938ca | 5301 | tls_type = TLS_TLS | TLS_TPREL; |
411e1bfb AM |
5302 | break; |
5303 | } | |
5304 | else | |
5305 | continue; | |
5306 | ||
5307 | case R_PPC64_REL14: | |
5308 | case R_PPC64_REL14_BRTAKEN: | |
5309 | case R_PPC64_REL14_BRNTAKEN: | |
5310 | case R_PPC64_REL24: | |
5311 | if (h != NULL | |
5312 | && h == htab->tls_get_addr) | |
5313 | { | |
5314 | if (!expecting_tls_get_addr | |
5315 | && rel != relstart | |
5316 | && ((ELF64_R_TYPE (rel[-1].r_info) | |
5317 | == R_PPC64_TOC16) | |
5318 | || (ELF64_R_TYPE (rel[-1].r_info) | |
5319 | == R_PPC64_TOC16_LO))) | |
5320 | { | |
5321 | /* Check for toc tls entries. */ | |
5322 | char *toc_tls; | |
951fd09b | 5323 | int retval; |
411e1bfb | 5324 | |
e7b938ca | 5325 | retval = get_tls_mask (&toc_tls, &locsyms, |
951fd09b AM |
5326 | rel - 1, ibfd); |
5327 | if (retval == 0) | |
411e1bfb AM |
5328 | goto err_free_rel; |
5329 | if (toc_tls != NULL) | |
951fd09b | 5330 | expecting_tls_get_addr = retval > 1; |
411e1bfb AM |
5331 | } |
5332 | ||
5333 | if (expecting_tls_get_addr) | |
5334 | { | |
5335 | struct plt_entry *ent; | |
5336 | for (ent = h->plt.plist; ent; ent = ent->next) | |
5337 | if (ent->addend == 0) | |
5338 | { | |
5339 | if (ent->plt.refcount > 0) | |
5340 | ent->plt.refcount -= 1; | |
5341 | break; | |
5342 | } | |
5343 | } | |
5344 | } | |
5345 | expecting_tls_get_addr = 0; | |
5346 | continue; | |
5347 | ||
5348 | case R_PPC64_TPREL64: | |
5349 | expecting_tls_get_addr = 0; | |
5350 | if (ok_tprel) | |
5351 | { | |
5352 | /* IE -> LE */ | |
5353 | tls_set = TLS_EXPLICIT; | |
5354 | tls_clear = TLS_TPREL; | |
5355 | break; | |
5356 | } | |
5357 | else | |
5358 | continue; | |
5359 | ||
5360 | case R_PPC64_DTPMOD64: | |
5361 | expecting_tls_get_addr = 0; | |
951fd09b AM |
5362 | if (rel + 1 < relend |
5363 | && (rel[1].r_info | |
5364 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
5365 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 5366 | { |
951fd09b | 5367 | if (ok_tprel) |
411e1bfb | 5368 | /* GD -> LE */ |
951fd09b | 5369 | tls_set = TLS_EXPLICIT | TLS_GD; |
411e1bfb AM |
5370 | else |
5371 | /* GD -> IE */ | |
951fd09b AM |
5372 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; |
5373 | tls_clear = TLS_GD; | |
411e1bfb AM |
5374 | } |
5375 | else | |
5376 | { | |
951fd09b AM |
5377 | if (!is_local) |
5378 | continue; | |
5379 | ||
5380 | /* LD -> LE */ | |
5381 | tls_set = TLS_EXPLICIT; | |
5382 | tls_clear = TLS_LD; | |
411e1bfb AM |
5383 | } |
5384 | break; | |
5385 | ||
5386 | default: | |
5387 | expecting_tls_get_addr = 0; | |
5388 | continue; | |
5389 | } | |
5390 | ||
5391 | if ((tls_set & TLS_EXPLICIT) == 0) | |
5392 | { | |
5393 | struct got_entry *ent; | |
5394 | ||
5395 | /* Adjust got entry for this reloc. */ | |
5396 | if (h != NULL) | |
5397 | ent = h->got.glist; | |
5398 | else | |
5399 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
5400 | ||
5401 | for (; ent != NULL; ent = ent->next) | |
5402 | if (ent->addend == rel->r_addend | |
e7b938ca | 5403 | && ent->tls_type == tls_type) |
411e1bfb AM |
5404 | break; |
5405 | if (ent == NULL) | |
5406 | abort (); | |
5407 | ||
5408 | if (tls_set == 0) | |
5409 | { | |
5410 | /* We managed to get rid of a got entry. */ | |
5411 | if (ent->got.refcount > 0) | |
5412 | ent->got.refcount -= 1; | |
5413 | } | |
411e1bfb AM |
5414 | } |
5415 | else if (h != NULL) | |
5416 | { | |
5417 | struct ppc_link_hash_entry * eh; | |
5418 | struct ppc_dyn_relocs **pp; | |
5419 | struct ppc_dyn_relocs *p; | |
5420 | ||
5421 | /* Adjust dynamic relocs. */ | |
5422 | eh = (struct ppc_link_hash_entry *) h; | |
5423 | for (pp = &eh->dyn_relocs; | |
5424 | (p = *pp) != NULL; | |
5425 | pp = &p->next) | |
5426 | if (p->sec == sec) | |
5427 | { | |
5428 | /* If we got rid of a DTPMOD/DTPREL reloc | |
5429 | pair then we'll lose one or two dyn | |
5430 | relocs. */ | |
951fd09b | 5431 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
411e1bfb | 5432 | p->count -= 1; |
951fd09b | 5433 | p->count -= 1; |
411e1bfb AM |
5434 | if (p->count == 0) |
5435 | *pp = p->next; | |
5436 | break; | |
5437 | } | |
5438 | } | |
5439 | ||
e7b938ca AM |
5440 | *tls_mask |= tls_set; |
5441 | *tls_mask &= ~tls_clear; | |
411e1bfb AM |
5442 | } |
5443 | ||
5444 | if (elf_section_data (sec)->relocs != relstart) | |
5445 | free (relstart); | |
5446 | } | |
5447 | ||
5448 | if (locsyms != NULL | |
5449 | && (elf_tdata (ibfd)->symtab_hdr.contents | |
5450 | != (unsigned char *) locsyms)) | |
6cdc0ccc AM |
5451 | { |
5452 | if (!info->keep_memory) | |
411e1bfb | 5453 | free (locsyms); |
6cdc0ccc | 5454 | else |
411e1bfb | 5455 | elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms; |
6cdc0ccc | 5456 | } |
1e2f5b6e | 5457 | } |
b34976b6 | 5458 | return TRUE; |
1e2f5b6e | 5459 | } |
b34976b6 | 5460 | |
65f38f15 AM |
5461 | /* This is the condition under which ppc64_elf_finish_dynamic_symbol |
5462 | will be called from elflink.h. If elflink.h doesn't call our | |
5463 | finish_dynamic_symbol routine, we'll need to do something about | |
5464 | initializing any .plt and .got entries in ppc64_elf_relocate_section. */ | |
f4656909 | 5465 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \ |
65f38f15 | 5466 | ((DYN) \ |
f4656909 | 5467 | && ((SHARED) \ |
65f38f15 AM |
5468 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ |
5469 | && ((H)->dynindx != -1 \ | |
5470 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
5bd4f169 | 5471 | |
65f38f15 AM |
5472 | /* Allocate space in .plt, .got and associated reloc sections for |
5473 | dynamic relocs. */ | |
5bd4f169 | 5474 | |
b34976b6 | 5475 | static bfd_boolean |
65f38f15 AM |
5476 | allocate_dynrelocs (h, inf) |
5477 | struct elf_link_hash_entry *h; | |
5478 | PTR inf; | |
5bd4f169 | 5479 | { |
65f38f15 AM |
5480 | struct bfd_link_info *info; |
5481 | struct ppc_link_hash_table *htab; | |
5bd4f169 | 5482 | asection *s; |
65f38f15 AM |
5483 | struct ppc_link_hash_entry *eh; |
5484 | struct ppc_dyn_relocs *p; | |
411e1bfb | 5485 | struct got_entry *gent; |
5bd4f169 | 5486 | |
e92d460e | 5487 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5488 | return TRUE; |
5bd4f169 | 5489 | |
e92d460e AM |
5490 | if (h->root.type == bfd_link_hash_warning) |
5491 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5492 | ||
65f38f15 AM |
5493 | info = (struct bfd_link_info *) inf; |
5494 | htab = ppc_hash_table (info); | |
5bd4f169 | 5495 | |
65f38f15 | 5496 | if (htab->elf.dynamic_sections_created |
411e1bfb | 5497 | && h->dynindx != -1 |
9c7a29a3 | 5498 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) |
5bd4f169 | 5499 | { |
411e1bfb AM |
5500 | struct plt_entry *pent; |
5501 | bfd_boolean doneone = FALSE; | |
5502 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
5503 | if (pent->plt.refcount > 0) | |
5504 | { | |
5505 | BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor); | |
5506 | ||
5507 | /* If this is the first .plt entry, make room for the special | |
5508 | first entry. */ | |
5509 | s = htab->splt; | |
5510 | if (s->_raw_size == 0) | |
5511 | s->_raw_size += PLT_INITIAL_ENTRY_SIZE; | |
5512 | ||
5513 | pent->plt.offset = s->_raw_size; | |
5514 | ||
5515 | /* Make room for this entry. */ | |
5516 | s->_raw_size += PLT_ENTRY_SIZE; | |
5517 | ||
5518 | /* Make room for the .glink code. */ | |
5519 | s = htab->sglink; | |
5520 | if (s->_raw_size == 0) | |
5521 | s->_raw_size += GLINK_CALL_STUB_SIZE; | |
5522 | /* We need bigger stubs past index 32767. */ | |
5523 | if (s->_raw_size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
5524 | s->_raw_size += 4; | |
5525 | s->_raw_size += 2*4; | |
5526 | ||
5527 | /* We also need to make an entry in the .rela.plt section. */ | |
5528 | s = htab->srelplt; | |
5529 | s->_raw_size += sizeof (Elf64_External_Rela); | |
5530 | doneone = TRUE; | |
5531 | } | |
5532 | else | |
5533 | pent->plt.offset = (bfd_vma) -1; | |
5534 | if (!doneone) | |
65f38f15 | 5535 | { |
411e1bfb | 5536 | h->plt.plist = NULL; |
65f38f15 AM |
5537 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5538 | } | |
5539 | } | |
5540 | else | |
5541 | { | |
411e1bfb | 5542 | h->plt.plist = NULL; |
65f38f15 AM |
5543 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; |
5544 | } | |
5545 | ||
951fd09b AM |
5546 | eh = (struct ppc_link_hash_entry *) h; |
5547 | /* Run through the TLS GD got entries first if we're changing them | |
5548 | to TPREL. */ | |
e7b938ca | 5549 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
951fd09b AM |
5550 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5551 | if (gent->got.refcount > 0 | |
5552 | && (gent->tls_type & TLS_GD) != 0) | |
5553 | { | |
5554 | /* This was a GD entry that has been converted to TPREL. If | |
5555 | there happens to be a TPREL entry we can use that one. */ | |
5556 | struct got_entry *ent; | |
5557 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
5558 | if (ent->got.refcount > 0 | |
5559 | && (ent->tls_type & TLS_TPREL) != 0 | |
5560 | && ent->addend == gent->addend) | |
5561 | { | |
5562 | gent->got.refcount = 0; | |
5563 | break; | |
5564 | } | |
5565 | ||
5566 | /* If not, then we'll be using our own TPREL entry. */ | |
5567 | if (gent->got.refcount != 0) | |
5568 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
5569 | } | |
5570 | ||
411e1bfb AM |
5571 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
5572 | if (gent->got.refcount > 0) | |
5573 | { | |
951fd09b AM |
5574 | bfd_boolean dyn; |
5575 | ||
411e1bfb | 5576 | /* Make sure this symbol is output as a dynamic symbol. |
951fd09b AM |
5577 | Undefined weak syms won't yet be marked as dynamic, |
5578 | nor will all TLS symbols. */ | |
411e1bfb AM |
5579 | if (h->dynindx == -1 |
5580 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5581 | { | |
5582 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) | |
5583 | return FALSE; | |
5584 | } | |
65f38f15 | 5585 | |
d881513a AM |
5586 | if ((gent->tls_type & TLS_LD) != 0 |
5587 | && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)) | |
411e1bfb | 5588 | { |
951fd09b AM |
5589 | gent->got.offset = htab->tlsld_got.offset; |
5590 | continue; | |
411e1bfb | 5591 | } |
951fd09b AM |
5592 | |
5593 | s = htab->sgot; | |
5594 | gent->got.offset = s->_raw_size; | |
d881513a AM |
5595 | s->_raw_size |
5596 | += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8; | |
951fd09b | 5597 | dyn = htab->elf.dynamic_sections_created; |
4e795f50 AM |
5598 | if ((info->shared |
5599 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
5600 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
5601 | || h->root.type != bfd_link_hash_undefweak)) | |
951fd09b | 5602 | htab->srelgot->_raw_size |
e7b938ca | 5603 | += (gent->tls_type & eh->tls_mask & TLS_GD |
951fd09b AM |
5604 | ? 2 * sizeof (Elf64_External_Rela) |
5605 | : sizeof (Elf64_External_Rela)); | |
411e1bfb AM |
5606 | } |
5607 | else | |
5608 | gent->got.offset = (bfd_vma) -1; | |
65f38f15 | 5609 | |
65f38f15 | 5610 | if (eh->dyn_relocs == NULL) |
b34976b6 | 5611 | return TRUE; |
65f38f15 AM |
5612 | |
5613 | /* In the shared -Bsymbolic case, discard space allocated for | |
5614 | dynamic pc-relative relocs against symbols which turn out to be | |
5615 | defined in regular objects. For the normal shared case, discard | |
5616 | space for relocs that have become local due to symbol visibility | |
5617 | changes. */ | |
5618 | ||
5619 | if (info->shared) | |
5620 | { | |
9c7a29a3 AM |
5621 | /* Relocs that use pc_count are those that appear on a call insn, |
5622 | or certain REL relocs (see MUST_BE_DYN_RELOC) that can be | |
5623 | generated via assembly. We want calls to protected symbols to | |
5624 | resolve directly to the function rather than going via the plt. | |
5625 | If people want function pointer comparisons to work as expected | |
5626 | then they should avoid writing weird assembly. */ | |
09695f56 | 5627 | if (SYMBOL_CALLS_LOCAL (info, h)) |
65f38f15 AM |
5628 | { |
5629 | struct ppc_dyn_relocs **pp; | |
5630 | ||
5631 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5bd4f169 | 5632 | { |
65f38f15 AM |
5633 | p->count -= p->pc_count; |
5634 | p->pc_count = 0; | |
5635 | if (p->count == 0) | |
5636 | *pp = p->next; | |
5637 | else | |
5638 | pp = &p->next; | |
5bd4f169 | 5639 | } |
65f38f15 | 5640 | } |
4e795f50 AM |
5641 | |
5642 | /* Also discard relocs on undefined weak syms with non-default | |
5643 | visibility. */ | |
5644 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5645 | && h->root.type == bfd_link_hash_undefweak) | |
5646 | eh->dyn_relocs = NULL; | |
65f38f15 | 5647 | } |
f4656909 | 5648 | else if (ELIMINATE_COPY_RELOCS) |
65f38f15 AM |
5649 | { |
5650 | /* For the non-shared case, discard space for relocs against | |
5651 | symbols which turn out to need copy relocs or are not | |
5652 | dynamic. */ | |
5653 | ||
5654 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
5655 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
5656 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
65f38f15 AM |
5657 | { |
5658 | /* Make sure this symbol is output as a dynamic symbol. | |
5659 | Undefined weak syms won't yet be marked as dynamic. */ | |
5660 | if (h->dynindx == -1 | |
5661 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
5662 | { | |
ec338859 | 5663 | if (! bfd_elf64_link_record_dynamic_symbol (info, h)) |
b34976b6 | 5664 | return FALSE; |
65f38f15 AM |
5665 | } |
5666 | ||
5667 | /* If that succeeded, we know we'll be keeping all the | |
5668 | relocs. */ | |
5669 | if (h->dynindx != -1) | |
5670 | goto keep; | |
5671 | } | |
5672 | ||
5673 | eh->dyn_relocs = NULL; | |
5674 | ||
ec338859 | 5675 | keep: ; |
65f38f15 AM |
5676 | } |
5677 | ||
5678 | /* Finally, allocate space. */ | |
5679 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5680 | { | |
5681 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5682 | sreloc->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
5683 | } | |
5684 | ||
b34976b6 | 5685 | return TRUE; |
65f38f15 AM |
5686 | } |
5687 | ||
5688 | /* Find any dynamic relocs that apply to read-only sections. */ | |
5689 | ||
b34976b6 | 5690 | static bfd_boolean |
65f38f15 AM |
5691 | readonly_dynrelocs (h, inf) |
5692 | struct elf_link_hash_entry *h; | |
5693 | PTR inf; | |
5694 | { | |
5695 | struct ppc_link_hash_entry *eh; | |
5696 | struct ppc_dyn_relocs *p; | |
5697 | ||
e92d460e AM |
5698 | if (h->root.type == bfd_link_hash_warning) |
5699 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5700 | ||
65f38f15 AM |
5701 | eh = (struct ppc_link_hash_entry *) h; |
5702 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5703 | { | |
5704 | asection *s = p->sec->output_section; | |
5705 | ||
5706 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
5707 | { | |
5708 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
5709 | ||
5710 | info->flags |= DF_TEXTREL; | |
5711 | ||
5712 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 5713 | return FALSE; |
65f38f15 AM |
5714 | } |
5715 | } | |
b34976b6 | 5716 | return TRUE; |
65f38f15 AM |
5717 | } |
5718 | ||
5719 | /* Set the sizes of the dynamic sections. */ | |
5720 | ||
b34976b6 | 5721 | static bfd_boolean |
65f38f15 AM |
5722 | ppc64_elf_size_dynamic_sections (output_bfd, info) |
5723 | bfd *output_bfd ATTRIBUTE_UNUSED; | |
5724 | struct bfd_link_info *info; | |
5725 | { | |
5726 | struct ppc_link_hash_table *htab; | |
5727 | bfd *dynobj; | |
5728 | asection *s; | |
b34976b6 | 5729 | bfd_boolean relocs; |
65f38f15 AM |
5730 | bfd *ibfd; |
5731 | ||
5732 | htab = ppc_hash_table (info); | |
5733 | dynobj = htab->elf.dynobj; | |
5734 | if (dynobj == NULL) | |
5735 | abort (); | |
5736 | ||
5737 | if (htab->elf.dynamic_sections_created) | |
5738 | { | |
5739 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 5740 | if (info->executable) |
65f38f15 AM |
5741 | { |
5742 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
5743 | if (s == NULL) | |
5744 | abort (); | |
5745 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5746 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5747 | } | |
5748 | } | |
5749 | ||
411e1bfb AM |
5750 | if (htab->tlsld_got.refcount > 0) |
5751 | { | |
5752 | htab->tlsld_got.offset = htab->sgot->_raw_size; | |
5753 | htab->sgot->_raw_size += 16; | |
5754 | if (info->shared) | |
5755 | htab->srelgot->_raw_size += sizeof (Elf64_External_Rela); | |
5756 | } | |
5757 | else | |
5758 | htab->tlsld_got.offset = (bfd_vma) -1; | |
5759 | ||
65f38f15 AM |
5760 | /* Set up .got offsets for local syms, and space for local dynamic |
5761 | relocs. */ | |
5762 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5763 | { | |
411e1bfb AM |
5764 | struct got_entry **lgot_ents; |
5765 | struct got_entry **end_lgot_ents; | |
e7b938ca | 5766 | char *lgot_masks; |
65f38f15 AM |
5767 | bfd_size_type locsymcount; |
5768 | Elf_Internal_Shdr *symtab_hdr; | |
5769 | asection *srel; | |
5770 | ||
5771 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
5772 | continue; | |
5773 | ||
5774 | for (s = ibfd->sections; s != NULL; s = s->next) | |
5775 | { | |
ec338859 | 5776 | struct ppc_dyn_relocs *p; |
65f38f15 | 5777 | |
ec338859 AM |
5778 | for (p = *((struct ppc_dyn_relocs **) |
5779 | &elf_section_data (s)->local_dynrel); | |
5780 | p != NULL; | |
5781 | p = p->next) | |
65f38f15 | 5782 | { |
ec338859 AM |
5783 | if (!bfd_is_abs_section (p->sec) |
5784 | && bfd_is_abs_section (p->sec->output_section)) | |
5785 | { | |
5786 | /* Input section has been discarded, either because | |
5787 | it is a copy of a linkonce section or due to | |
5788 | linker script /DISCARD/, so we'll be discarding | |
5789 | the relocs too. */ | |
5790 | } | |
248866a8 | 5791 | else if (p->count != 0) |
ec338859 AM |
5792 | { |
5793 | srel = elf_section_data (p->sec)->sreloc; | |
5794 | srel->_raw_size += p->count * sizeof (Elf64_External_Rela); | |
248866a8 AM |
5795 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
5796 | info->flags |= DF_TEXTREL; | |
ec338859 | 5797 | } |
65f38f15 AM |
5798 | } |
5799 | } | |
5800 | ||
411e1bfb AM |
5801 | lgot_ents = elf_local_got_ents (ibfd); |
5802 | if (!lgot_ents) | |
65f38f15 AM |
5803 | continue; |
5804 | ||
5805 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
5806 | locsymcount = symtab_hdr->sh_info; | |
411e1bfb | 5807 | end_lgot_ents = lgot_ents + locsymcount; |
e7b938ca | 5808 | lgot_masks = (char *) end_lgot_ents; |
65f38f15 AM |
5809 | s = htab->sgot; |
5810 | srel = htab->srelgot; | |
e7b938ca | 5811 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
65f38f15 | 5812 | { |
411e1bfb AM |
5813 | struct got_entry *ent; |
5814 | ||
5815 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
5816 | if (ent->got.refcount > 0) | |
5817 | { | |
e7b938ca | 5818 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
411e1bfb AM |
5819 | { |
5820 | if (htab->tlsld_got.offset == (bfd_vma) -1) | |
5821 | { | |
5822 | htab->tlsld_got.offset = s->_raw_size; | |
5823 | s->_raw_size += 16; | |
5824 | if (info->shared) | |
5825 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5826 | } | |
5827 | ent->got.offset = htab->tlsld_got.offset; | |
5828 | } | |
5829 | else | |
5830 | { | |
5831 | ent->got.offset = s->_raw_size; | |
e7b938ca | 5832 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
411e1bfb AM |
5833 | { |
5834 | s->_raw_size += 16; | |
5835 | if (info->shared) | |
5836 | srel->_raw_size += 2 * sizeof (Elf64_External_Rela); | |
5837 | } | |
5838 | else | |
5839 | { | |
5840 | s->_raw_size += 8; | |
5841 | if (info->shared) | |
5842 | srel->_raw_size += sizeof (Elf64_External_Rela); | |
5843 | } | |
5844 | } | |
5845 | } | |
5846 | else | |
5847 | ent->got.offset = (bfd_vma) -1; | |
65f38f15 AM |
5848 | } |
5849 | } | |
5850 | ||
5851 | /* Allocate global sym .plt and .got entries, and space for global | |
5852 | sym dynamic relocs. */ | |
5853 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
5854 | ||
5855 | /* We now have determined the sizes of the various dynamic sections. | |
5856 | Allocate memory for them. */ | |
b34976b6 | 5857 | relocs = FALSE; |
65f38f15 AM |
5858 | for (s = dynobj->sections; s != NULL; s = s->next) |
5859 | { | |
5860 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
5861 | continue; | |
5862 | ||
411e1bfb AM |
5863 | /* Reset _cooked_size since prelim layout will set it wrongly, |
5864 | and a non-zero _cooked_size sticks. */ | |
5865 | s->_cooked_size = 0; | |
5866 | ||
721956f4 AM |
5867 | if (s == htab->sbrlt || s == htab->srelbrlt) |
5868 | /* These haven't been allocated yet; don't strip. */ | |
5869 | continue; | |
5870 | else if (s == htab->splt | |
5871 | || s == htab->sgot | |
5872 | || s == htab->sglink) | |
65f38f15 AM |
5873 | { |
5874 | /* Strip this section if we don't need it; see the | |
5875 | comment below. */ | |
5bd4f169 | 5876 | } |
65f38f15 | 5877 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) |
5bd4f169 AM |
5878 | { |
5879 | if (s->_raw_size == 0) | |
5880 | { | |
5881 | /* If we don't need this section, strip it from the | |
5882 | output file. This is mostly to handle .rela.bss and | |
5883 | .rela.plt. We must create both sections in | |
5884 | create_dynamic_sections, because they must be created | |
5885 | before the linker maps input sections to output | |
5886 | sections. The linker does that before | |
5887 | adjust_dynamic_symbol is called, and it is that | |
5888 | function which decides whether anything needs to go | |
5889 | into these sections. */ | |
5bd4f169 AM |
5890 | } |
5891 | else | |
5892 | { | |
65f38f15 | 5893 | if (s != htab->srelplt) |
b34976b6 | 5894 | relocs = TRUE; |
5bd4f169 AM |
5895 | |
5896 | /* We use the reloc_count field as a counter if we need | |
5897 | to copy relocs into the output file. */ | |
5898 | s->reloc_count = 0; | |
5899 | } | |
5900 | } | |
65f38f15 | 5901 | else |
5bd4f169 AM |
5902 | { |
5903 | /* It's not one of our sections, so don't allocate space. */ | |
5904 | continue; | |
5905 | } | |
5906 | ||
65f38f15 | 5907 | if (s->_raw_size == 0) |
5bd4f169 AM |
5908 | { |
5909 | _bfd_strip_section_from_output (info, s); | |
5910 | continue; | |
5911 | } | |
5912 | ||
5f333394 AM |
5913 | /* .plt is in the bss section. We don't initialise it. */ |
5914 | if ((s->flags & SEC_LOAD) == 0) | |
5915 | continue; | |
5916 | ||
65f38f15 AM |
5917 | /* Allocate memory for the section contents. We use bfd_zalloc |
5918 | here in case unused entries are not reclaimed before the | |
5919 | section's contents are written out. This should not happen, | |
411e1bfb AM |
5920 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
5921 | sections instead of garbage. | |
5922 | We also rely on the section contents being zero when writing | |
5923 | the GOT. */ | |
721956f4 | 5924 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); |
65f38f15 | 5925 | if (s->contents == NULL) |
b34976b6 | 5926 | return FALSE; |
5bd4f169 AM |
5927 | } |
5928 | ||
e86ce104 | 5929 | if (htab->elf.dynamic_sections_created) |
5bd4f169 AM |
5930 | { |
5931 | /* Add some entries to the .dynamic section. We fill in the | |
5932 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
5933 | must add the entries now so that we get the correct size for | |
5934 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5935 | dynamic linker and used by the debugger. */ | |
dc810e39 AM |
5936 | #define add_dynamic_entry(TAG, VAL) \ |
5937 | bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
5938 | ||
36af4a4e | 5939 | if (info->executable) |
5bd4f169 | 5940 | { |
dc810e39 | 5941 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 5942 | return FALSE; |
5bd4f169 AM |
5943 | } |
5944 | ||
9c07fe7c | 5945 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
5bd4f169 | 5946 | { |
dc810e39 AM |
5947 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
5948 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5949 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5d1634d7 AM |
5950 | || !add_dynamic_entry (DT_JMPREL, 0) |
5951 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
b34976b6 | 5952 | return FALSE; |
5bd4f169 AM |
5953 | } |
5954 | ||
19397422 AM |
5955 | if (NO_OPD_RELOCS) |
5956 | { | |
5957 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
5958 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
b34976b6 | 5959 | return FALSE; |
19397422 AM |
5960 | } |
5961 | ||
5bd4f169 AM |
5962 | if (relocs) |
5963 | { | |
dc810e39 AM |
5964 | if (!add_dynamic_entry (DT_RELA, 0) |
5965 | || !add_dynamic_entry (DT_RELASZ, 0) | |
5966 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 5967 | return FALSE; |
5bd4f169 | 5968 | |
65f38f15 AM |
5969 | /* If any dynamic relocs apply to a read-only section, |
5970 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
5971 | if ((info->flags & DF_TEXTREL) == 0) |
5972 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
5973 | (PTR) info); | |
5bd4f169 | 5974 | |
65f38f15 | 5975 | if ((info->flags & DF_TEXTREL) != 0) |
5bd4f169 | 5976 | { |
65f38f15 | 5977 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 5978 | return FALSE; |
5bd4f169 | 5979 | } |
5bd4f169 | 5980 | } |
5bd4f169 | 5981 | } |
65f38f15 | 5982 | #undef add_dynamic_entry |
5bd4f169 | 5983 | |
b34976b6 | 5984 | return TRUE; |
5bd4f169 AM |
5985 | } |
5986 | ||
721956f4 | 5987 | /* Determine the type of stub needed, if any, for a call. */ |
5bd4f169 | 5988 | |
721956f4 AM |
5989 | static INLINE enum ppc_stub_type |
5990 | ppc_type_of_stub (input_sec, rel, hash, destination) | |
5991 | asection *input_sec; | |
5992 | const Elf_Internal_Rela *rel; | |
5993 | struct ppc_link_hash_entry **hash; | |
5994 | bfd_vma destination; | |
5bd4f169 | 5995 | { |
721956f4 AM |
5996 | struct ppc_link_hash_entry *h = *hash; |
5997 | bfd_vma location; | |
5998 | bfd_vma branch_offset; | |
5999 | bfd_vma max_branch_offset; | |
6000 | unsigned int r_type; | |
5bd4f169 | 6001 | |
721956f4 AM |
6002 | if (h != NULL) |
6003 | { | |
6004 | if (h->oh != NULL | |
721956f4 | 6005 | && h->oh->dynindx != -1) |
5bd4f169 | 6006 | { |
411e1bfb AM |
6007 | struct plt_entry *ent; |
6008 | for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next) | |
6009 | if (ent->addend == rel->r_addend | |
6010 | && ent->plt.offset != (bfd_vma) -1) | |
6011 | { | |
6012 | *hash = (struct ppc_link_hash_entry *) h->oh; | |
6013 | return ppc_stub_plt_call; | |
6014 | } | |
5bd4f169 AM |
6015 | } |
6016 | ||
721956f4 AM |
6017 | if (h->elf.root.type == bfd_link_hash_undefweak |
6018 | || h->elf.root.type == bfd_link_hash_undefined) | |
6019 | return ppc_stub_none; | |
5d1634d7 | 6020 | } |
5d1634d7 | 6021 | |
721956f4 AM |
6022 | /* Determine where the call point is. */ |
6023 | location = (input_sec->output_offset | |
6024 | + input_sec->output_section->vma | |
6025 | + rel->r_offset); | |
5d1634d7 | 6026 | |
721956f4 AM |
6027 | branch_offset = destination - location; |
6028 | r_type = ELF64_R_TYPE (rel->r_info); | |
5d1634d7 | 6029 | |
721956f4 AM |
6030 | /* Determine if a long branch stub is needed. */ |
6031 | max_branch_offset = 1 << 25; | |
6032 | if (r_type != (unsigned int) R_PPC64_REL24) | |
6033 | max_branch_offset = 1 << 15; | |
5d1634d7 | 6034 | |
721956f4 AM |
6035 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset) |
6036 | /* We need a stub. Figure out whether a long_branch or plt_branch | |
6037 | is needed later. */ | |
6038 | return ppc_stub_long_branch; | |
5d1634d7 | 6039 | |
721956f4 | 6040 | return ppc_stub_none; |
5d1634d7 AM |
6041 | } |
6042 | ||
6043 | /* Build a .plt call stub. */ | |
6044 | ||
6045 | static bfd_byte * | |
6046 | build_plt_stub (obfd, p, offset, glink) | |
6047 | bfd *obfd; | |
6048 | bfd_byte *p; | |
6049 | int offset; | |
6050 | int glink; | |
6051 | { | |
6052 | #define PPC_LO(v) ((v) & 0xffff) | |
6053 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
6054 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
6055 | ||
6056 | if (glink) | |
6057 | bfd_put_32 (obfd, LD_R2_40R1, p), p += 4; | |
6058 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
6059 | if (!glink) | |
6060 | bfd_put_32 (obfd, STD_R2_40R1, p), p += 4; | |
6061 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
6062 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
6063 | bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4; | |
6064 | offset += 8; | |
6065 | bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4; | |
6066 | if (PPC_HA (offset + 8) != PPC_HA (offset)) | |
6067 | bfd_put_32 (obfd, ADDIS_R12_R12_1, p), p += 4; | |
6068 | offset += 8; | |
6069 | bfd_put_32 (obfd, MTCTR_R11, p), p += 4; | |
6070 | bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4; | |
6071 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
6072 | return p; | |
6073 | } | |
6074 | ||
b34976b6 | 6075 | static bfd_boolean |
721956f4 AM |
6076 | ppc_build_one_stub (gen_entry, in_arg) |
6077 | struct bfd_hash_entry *gen_entry; | |
6078 | PTR in_arg; | |
5d1634d7 | 6079 | { |
721956f4 AM |
6080 | struct ppc_stub_hash_entry *stub_entry; |
6081 | struct ppc_branch_hash_entry *br_entry; | |
5d1634d7 AM |
6082 | struct bfd_link_info *info; |
6083 | struct ppc_link_hash_table *htab; | |
721956f4 AM |
6084 | asection *stub_sec; |
6085 | bfd *stub_bfd; | |
6086 | bfd_byte *loc; | |
6087 | bfd_byte *p; | |
6088 | unsigned int indx; | |
411e1bfb | 6089 | struct plt_entry *ent; |
721956f4 AM |
6090 | bfd_vma off; |
6091 | int size; | |
5d1634d7 | 6092 | |
721956f4 AM |
6093 | /* Massage our args to the form they really have. */ |
6094 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
6095 | info = (struct bfd_link_info *) in_arg; | |
5d1634d7 | 6096 | |
5d1634d7 | 6097 | htab = ppc_hash_table (info); |
721956f4 | 6098 | stub_sec = stub_entry->stub_sec; |
5d1634d7 | 6099 | |
721956f4 AM |
6100 | /* Make a note of the offset within the stubs for this entry. */ |
6101 | stub_entry->stub_offset = stub_sec->_cooked_size; | |
6102 | loc = stub_sec->contents + stub_entry->stub_offset; | |
6103 | ||
6104 | stub_bfd = stub_sec->owner; | |
6105 | ||
6106 | switch (stub_entry->stub_type) | |
5d1634d7 | 6107 | { |
721956f4 AM |
6108 | case ppc_stub_long_branch: |
6109 | /* Branches are relative. This is where we are going to. */ | |
6110 | off = (stub_entry->target_value | |
6111 | + stub_entry->target_section->output_offset | |
6112 | + stub_entry->target_section->output_section->vma); | |
5d1634d7 | 6113 | |
721956f4 AM |
6114 | /* And this is where we are coming from. */ |
6115 | off -= (stub_entry->stub_offset | |
6116 | + stub_sec->output_offset | |
6117 | + stub_sec->output_section->vma); | |
e86ce104 | 6118 | |
721956f4 | 6119 | BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26)); |
e86ce104 | 6120 | |
721956f4 AM |
6121 | bfd_put_32 (stub_bfd, (bfd_vma) B_DOT | (off & 0x3fffffc), loc); |
6122 | size = 4; | |
6123 | break; | |
e86ce104 | 6124 | |
721956f4 AM |
6125 | case ppc_stub_plt_branch: |
6126 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6127 | stub_entry->root.string + 9, | |
b34976b6 | 6128 | FALSE, FALSE); |
721956f4 AM |
6129 | if (br_entry == NULL) |
6130 | { | |
6131 | (*_bfd_error_handler) (_("can't find branch stub `%s'"), | |
6132 | stub_entry->root.string + 9); | |
b34976b6 AM |
6133 | htab->stub_error = TRUE; |
6134 | return FALSE; | |
721956f4 AM |
6135 | } |
6136 | ||
6137 | off = (stub_entry->target_value | |
6138 | + stub_entry->target_section->output_offset | |
6139 | + stub_entry->target_section->output_section->vma); | |
6140 | ||
6141 | bfd_put_64 (htab->sbrlt->owner, off, | |
6142 | htab->sbrlt->contents + br_entry->offset); | |
6143 | ||
6144 | if (info->shared) | |
6145 | { | |
6146 | /* Create a reloc for the branch lookup table entry. */ | |
6147 | Elf_Internal_Rela rela; | |
947216bf | 6148 | bfd_byte *loc; |
5d1634d7 | 6149 | |
721956f4 AM |
6150 | rela.r_offset = (br_entry->offset |
6151 | + htab->sbrlt->output_offset | |
6152 | + htab->sbrlt->output_section->vma); | |
6153 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
6154 | rela.r_addend = off; | |
6155 | ||
947216bf AM |
6156 | loc = htab->srelbrlt->contents; |
6157 | loc += htab->srelbrlt->reloc_count++ * sizeof (Elf64_External_Rela); | |
6158 | bfd_elf64_swap_reloca_out (htab->srelbrlt->owner, &rela, loc); | |
721956f4 AM |
6159 | } |
6160 | ||
6161 | off = (br_entry->offset | |
6162 | + htab->sbrlt->output_offset | |
6163 | + htab->sbrlt->output_section->vma | |
6164 | - elf_gp (htab->sbrlt->output_section->owner) | |
6165 | - TOC_BASE_OFF); | |
6166 | ||
6167 | if (off + 0x80000000 > 0xffffffff || (off & 7) != 0) | |
5d1634d7 AM |
6168 | { |
6169 | (*_bfd_error_handler) | |
e86ce104 | 6170 | (_("linkage table error against `%s'"), |
721956f4 | 6171 | stub_entry->root.string); |
5d1634d7 | 6172 | bfd_set_error (bfd_error_bad_value); |
b34976b6 AM |
6173 | htab->stub_error = TRUE; |
6174 | return FALSE; | |
5d1634d7 | 6175 | } |
41bd81ab | 6176 | |
721956f4 AM |
6177 | indx = off; |
6178 | bfd_put_32 (stub_bfd, (bfd_vma) ADDIS_R12_R2 | PPC_HA (indx), loc); | |
6179 | bfd_put_32 (stub_bfd, (bfd_vma) LD_R11_0R12 | PPC_LO (indx), loc + 4); | |
6180 | bfd_put_32 (stub_bfd, (bfd_vma) MTCTR_R11, loc + 8); | |
6181 | bfd_put_32 (stub_bfd, (bfd_vma) BCTR, loc + 12); | |
6182 | size = 16; | |
6183 | break; | |
5d1634d7 | 6184 | |
721956f4 | 6185 | case ppc_stub_plt_call: |
c862ae31 AM |
6186 | /* Do the best we can for shared libraries built without |
6187 | exporting ".foo" for each "foo". This can happen when symbol | |
6188 | versioning scripts strip all bar a subset of symbols. */ | |
6189 | if (stub_entry->h->oh->root.type != bfd_link_hash_defined | |
6190 | && stub_entry->h->oh->root.type != bfd_link_hash_defweak) | |
6191 | { | |
6192 | /* Point the symbol at the stub. There may be multiple stubs, | |
6193 | we don't really care; The main thing is to make this sym | |
6194 | defined somewhere. */ | |
6195 | stub_entry->h->oh->root.type = bfd_link_hash_defined; | |
6196 | stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec; | |
6197 | stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset; | |
6198 | } | |
6199 | ||
721956f4 | 6200 | /* Now build the stub. */ |
411e1bfb AM |
6201 | off = (bfd_vma) -1; |
6202 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) | |
6203 | if (ent->addend == stub_entry->addend) | |
6204 | { | |
6205 | off = ent->plt.offset; | |
6206 | break; | |
6207 | } | |
721956f4 AM |
6208 | if (off >= (bfd_vma) -2) |
6209 | abort (); | |
6210 | ||
6211 | off &= ~ (bfd_vma) 1; | |
6212 | off += (htab->splt->output_offset | |
6213 | + htab->splt->output_section->vma | |
6214 | - elf_gp (htab->splt->output_section->owner) | |
6215 | - TOC_BASE_OFF); | |
6216 | ||
6217 | if (off + 0x80000000 > 0xffffffff || (off & 7) != 0) | |
6218 | { | |
6219 | (*_bfd_error_handler) | |
6220 | (_("linkage table error against `%s'"), | |
6221 | stub_entry->h->elf.root.root.string); | |
6222 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 AM |
6223 | htab->stub_error = TRUE; |
6224 | return FALSE; | |
721956f4 AM |
6225 | } |
6226 | ||
6227 | p = build_plt_stub (stub_bfd, loc, (int) off, 0); | |
6228 | size = p - loc; | |
6229 | break; | |
6230 | ||
6231 | default: | |
6232 | BFD_FAIL (); | |
b34976b6 | 6233 | return FALSE; |
721956f4 AM |
6234 | } |
6235 | ||
6236 | stub_sec->_cooked_size += size; | |
b34976b6 | 6237 | return TRUE; |
721956f4 AM |
6238 | } |
6239 | ||
6240 | /* As above, but don't actually build the stub. Just bump offset so | |
6241 | we know stub section sizes, and select plt_branch stubs where | |
6242 | long_branch stubs won't do. */ | |
6243 | ||
b34976b6 | 6244 | static bfd_boolean |
721956f4 AM |
6245 | ppc_size_one_stub (gen_entry, in_arg) |
6246 | struct bfd_hash_entry *gen_entry; | |
6247 | PTR in_arg; | |
6248 | { | |
6249 | struct ppc_stub_hash_entry *stub_entry; | |
6250 | struct ppc_link_hash_table *htab; | |
6251 | bfd_vma off; | |
6252 | int size; | |
6253 | ||
6254 | /* Massage our args to the form they really have. */ | |
6255 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
6256 | htab = (struct ppc_link_hash_table *) in_arg; | |
6257 | ||
6258 | if (stub_entry->stub_type == ppc_stub_plt_call) | |
6259 | { | |
411e1bfb | 6260 | struct plt_entry *ent; |
58ac9f71 | 6261 | off = (bfd_vma) -1; |
411e1bfb AM |
6262 | for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next) |
6263 | if (ent->addend == stub_entry->addend) | |
6264 | { | |
6265 | off = ent->plt.offset & ~(bfd_vma) 1; | |
6266 | break; | |
6267 | } | |
58ac9f71 | 6268 | if (off >= (bfd_vma) -2) |
411e1bfb | 6269 | abort (); |
721956f4 AM |
6270 | off += (htab->splt->output_offset |
6271 | + htab->splt->output_section->vma | |
6272 | - elf_gp (htab->splt->output_section->owner) | |
6273 | - TOC_BASE_OFF); | |
6274 | ||
6275 | size = 28; | |
6276 | if (PPC_HA ((int) off + 16) != PPC_HA ((int) off)) | |
6277 | size += 4; | |
6278 | } | |
6279 | else | |
6280 | { | |
6281 | /* ppc_stub_long_branch or ppc_stub_plt_branch. */ | |
6282 | stub_entry->stub_type = ppc_stub_long_branch; | |
6283 | size = 4; | |
6284 | ||
6285 | off = (stub_entry->target_value | |
6286 | + stub_entry->target_section->output_offset | |
6287 | + stub_entry->target_section->output_section->vma); | |
6288 | off -= (stub_entry->stub_sec->_raw_size | |
6289 | + stub_entry->stub_sec->output_offset | |
6290 | + stub_entry->stub_sec->output_section->vma); | |
6291 | ||
6292 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) | |
6293 | { | |
6294 | struct ppc_branch_hash_entry *br_entry; | |
6295 | ||
6296 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
6297 | stub_entry->root.string + 9, | |
b34976b6 | 6298 | TRUE, FALSE); |
721956f4 AM |
6299 | if (br_entry == NULL) |
6300 | { | |
6301 | (*_bfd_error_handler) (_("can't build branch stub `%s'"), | |
6302 | stub_entry->root.string + 9); | |
b34976b6 AM |
6303 | htab->stub_error = TRUE; |
6304 | return FALSE; | |
721956f4 AM |
6305 | } |
6306 | ||
6307 | if (br_entry->iter != htab->stub_iteration) | |
6308 | { | |
6309 | br_entry->iter = htab->stub_iteration; | |
6310 | br_entry->offset = htab->sbrlt->_raw_size; | |
6311 | htab->sbrlt->_raw_size += 8; | |
6312 | } | |
6313 | stub_entry->stub_type = ppc_stub_plt_branch; | |
6314 | size = 16; | |
6315 | } | |
6316 | } | |
6317 | ||
6318 | stub_entry->stub_sec->_raw_size += size; | |
b34976b6 | 6319 | return TRUE; |
721956f4 AM |
6320 | } |
6321 | ||
6322 | /* Set up various things so that we can make a list of input sections | |
6323 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 6324 | 0 when no stubs will be needed, and 1 on success. */ |
721956f4 AM |
6325 | |
6326 | int | |
6327 | ppc64_elf_setup_section_lists (output_bfd, info) | |
6328 | bfd *output_bfd; | |
6329 | struct bfd_link_info *info; | |
6330 | { | |
6331 | bfd *input_bfd; | |
721956f4 AM |
6332 | int top_id, top_index; |
6333 | asection *section; | |
6334 | asection **input_list, **list; | |
6335 | bfd_size_type amt; | |
6336 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6337 | ||
805fc799 AM |
6338 | if (htab->elf.root.creator->flavour != bfd_target_elf_flavour |
6339 | || htab->sbrlt == NULL) | |
721956f4 AM |
6340 | return 0; |
6341 | ||
1e2f5b6e AM |
6342 | /* Find the top input section id. */ |
6343 | for (input_bfd = info->input_bfds, top_id = 0; | |
721956f4 AM |
6344 | input_bfd != NULL; |
6345 | input_bfd = input_bfd->link_next) | |
6346 | { | |
721956f4 AM |
6347 | for (section = input_bfd->sections; |
6348 | section != NULL; | |
6349 | section = section->next) | |
6350 | { | |
6351 | if (top_id < section->id) | |
6352 | top_id = section->id; | |
6353 | } | |
6354 | } | |
721956f4 AM |
6355 | |
6356 | amt = sizeof (struct map_stub) * (top_id + 1); | |
6357 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); | |
6358 | if (htab->stub_group == NULL) | |
6359 | return -1; | |
6360 | ||
6361 | /* We can't use output_bfd->section_count here to find the top output | |
6362 | section index as some sections may have been removed, and | |
6363 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
6364 | for (section = output_bfd->sections, top_index = 0; | |
6365 | section != NULL; | |
6366 | section = section->next) | |
6367 | { | |
6368 | if (top_index < section->index) | |
6369 | top_index = section->index; | |
6370 | } | |
6371 | ||
6372 | htab->top_index = top_index; | |
6373 | amt = sizeof (asection *) * (top_index + 1); | |
6374 | input_list = (asection **) bfd_malloc (amt); | |
6375 | htab->input_list = input_list; | |
6376 | if (input_list == NULL) | |
6377 | return -1; | |
6378 | ||
6379 | /* For sections we aren't interested in, mark their entries with a | |
6380 | value we can check later. */ | |
6381 | list = input_list + top_index; | |
6382 | do | |
6383 | *list = bfd_abs_section_ptr; | |
6384 | while (list-- != input_list); | |
6385 | ||
6386 | for (section = output_bfd->sections; | |
6387 | section != NULL; | |
6388 | section = section->next) | |
6389 | { | |
6390 | if ((section->flags & SEC_CODE) != 0) | |
6391 | input_list[section->index] = NULL; | |
6392 | } | |
6393 | ||
6394 | return 1; | |
6395 | } | |
6396 | ||
6397 | /* The linker repeatedly calls this function for each input section, | |
6398 | in the order that input sections are linked into output sections. | |
6399 | Build lists of input sections to determine groupings between which | |
6400 | we may insert linker stubs. */ | |
6401 | ||
6402 | void | |
805fc799 | 6403 | ppc64_elf_next_input_section (info, isec) |
721956f4 AM |
6404 | struct bfd_link_info *info; |
6405 | asection *isec; | |
6406 | { | |
6407 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
6408 | ||
805fc799 | 6409 | if (isec->output_section->index <= htab->top_index) |
721956f4 AM |
6410 | { |
6411 | asection **list = htab->input_list + isec->output_section->index; | |
6412 | if (*list != bfd_abs_section_ptr) | |
6413 | { | |
6414 | /* Steal the link_sec pointer for our list. */ | |
6415 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) | |
6416 | /* This happens to make the list in reverse order, | |
6417 | which is what we want. */ | |
6418 | PREV_SEC (isec) = *list; | |
6419 | *list = isec; | |
6420 | } | |
6421 | } | |
6422 | } | |
6423 | ||
6424 | /* See whether we can group stub sections together. Grouping stub | |
6425 | sections may result in fewer stubs. More importantly, we need to | |
6426 | put all .init* and .fini* stubs at the beginning of the .init or | |
6427 | .fini output sections respectively, because glibc splits the | |
6428 | _init and _fini functions into multiple parts. Putting a stub in | |
6429 | the middle of a function is not a good idea. */ | |
6430 | ||
6431 | static void | |
6432 | group_sections (htab, stub_group_size, stubs_always_before_branch) | |
6433 | struct ppc_link_hash_table *htab; | |
6434 | bfd_size_type stub_group_size; | |
b34976b6 | 6435 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6436 | { |
6437 | asection **list = htab->input_list + htab->top_index; | |
6438 | do | |
6439 | { | |
6440 | asection *tail = *list; | |
6441 | if (tail == bfd_abs_section_ptr) | |
6442 | continue; | |
6443 | while (tail != NULL) | |
6444 | { | |
6445 | asection *curr; | |
6446 | asection *prev; | |
6447 | bfd_size_type total; | |
58ac9f71 | 6448 | bfd_boolean big_sec; |
721956f4 AM |
6449 | |
6450 | curr = tail; | |
6451 | if (tail->_cooked_size) | |
6452 | total = tail->_cooked_size; | |
6453 | else | |
6454 | total = tail->_raw_size; | |
58ac9f71 AM |
6455 | big_sec = total >= stub_group_size; |
6456 | ||
721956f4 AM |
6457 | while ((prev = PREV_SEC (curr)) != NULL |
6458 | && ((total += curr->output_offset - prev->output_offset) | |
6459 | < stub_group_size)) | |
6460 | curr = prev; | |
6461 | ||
6462 | /* OK, the size from the start of CURR to the end is less | |
6463 | than stub_group_size and thus can be handled by one stub | |
6464 | section. (or the tail section is itself larger than | |
6465 | stub_group_size, in which case we may be toast.) We | |
6466 | should really be keeping track of the total size of stubs | |
6467 | added here, as stubs contribute to the final output | |
6468 | section size. That's a little tricky, and this way will | |
6469 | only break if stubs added make the total size more than | |
6470 | 2^25, ie. for the default stub_group_size, if stubs total | |
58ac9f71 | 6471 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ |
721956f4 AM |
6472 | do |
6473 | { | |
6474 | prev = PREV_SEC (tail); | |
6475 | /* Set up this stub group. */ | |
6476 | htab->stub_group[tail->id].link_sec = curr; | |
6477 | } | |
6478 | while (tail != curr && (tail = prev) != NULL); | |
6479 | ||
6480 | /* But wait, there's more! Input sections up to stub_group_size | |
58ac9f71 AM |
6481 | bytes before the stub section can be handled by it too. |
6482 | Don't do this if we have a really large section after the | |
6483 | stubs, as adding more stubs increases the chance that | |
6484 | branches may not reach into the stub section. */ | |
6485 | if (!stubs_always_before_branch && !big_sec) | |
721956f4 AM |
6486 | { |
6487 | total = 0; | |
6488 | while (prev != NULL | |
6489 | && ((total += tail->output_offset - prev->output_offset) | |
6490 | < stub_group_size)) | |
6491 | { | |
6492 | tail = prev; | |
6493 | prev = PREV_SEC (tail); | |
6494 | htab->stub_group[tail->id].link_sec = curr; | |
6495 | } | |
6496 | } | |
6497 | tail = prev; | |
6498 | } | |
6499 | } | |
6500 | while (list-- != htab->input_list); | |
6501 | free (htab->input_list); | |
6502 | #undef PREV_SEC | |
6503 | } | |
6504 | ||
721956f4 AM |
6505 | /* Determine and set the size of the stub section for a final link. |
6506 | ||
6507 | The basic idea here is to examine all the relocations looking for | |
6508 | PC-relative calls to a target that is unreachable with a "bl" | |
6509 | instruction. */ | |
6510 | ||
b34976b6 | 6511 | bfd_boolean |
721956f4 AM |
6512 | ppc64_elf_size_stubs (output_bfd, stub_bfd, info, group_size, |
6513 | add_stub_section, layout_sections_again) | |
6514 | bfd *output_bfd; | |
6515 | bfd *stub_bfd; | |
6516 | struct bfd_link_info *info; | |
6517 | bfd_signed_vma group_size; | |
6518 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
6519 | void (*layout_sections_again) PARAMS ((void)); | |
6520 | { | |
6521 | bfd_size_type stub_group_size; | |
b34976b6 | 6522 | bfd_boolean stubs_always_before_branch; |
721956f4 AM |
6523 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
6524 | ||
6525 | /* Stash our params away. */ | |
6526 | htab->stub_bfd = stub_bfd; | |
6527 | htab->add_stub_section = add_stub_section; | |
6528 | htab->layout_sections_again = layout_sections_again; | |
6529 | stubs_always_before_branch = group_size < 0; | |
6530 | if (group_size < 0) | |
6531 | stub_group_size = -group_size; | |
6532 | else | |
6533 | stub_group_size = group_size; | |
6534 | if (stub_group_size == 1) | |
6535 | { | |
6536 | /* Default values. */ | |
58ac9f71 AM |
6537 | if (stubs_always_before_branch) |
6538 | { | |
6539 | stub_group_size = 0x1e00000; | |
6540 | if (htab->has_14bit_branch) | |
6541 | stub_group_size = 0x7800; | |
6542 | } | |
6543 | else | |
6544 | { | |
6545 | stub_group_size = 0x1c00000; | |
6546 | if (htab->has_14bit_branch) | |
6547 | stub_group_size = 0x7000; | |
6548 | } | |
721956f4 AM |
6549 | } |
6550 | ||
6551 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
6552 | ||
721956f4 AM |
6553 | while (1) |
6554 | { | |
6555 | bfd *input_bfd; | |
6556 | unsigned int bfd_indx; | |
6557 | asection *stub_sec; | |
b34976b6 | 6558 | bfd_boolean stub_changed; |
721956f4 AM |
6559 | |
6560 | htab->stub_iteration += 1; | |
b34976b6 | 6561 | stub_changed = FALSE; |
721956f4 AM |
6562 | |
6563 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
6564 | input_bfd != NULL; | |
6565 | input_bfd = input_bfd->link_next, bfd_indx++) | |
6566 | { | |
6567 | Elf_Internal_Shdr *symtab_hdr; | |
6568 | asection *section; | |
6cdc0ccc | 6569 | Elf_Internal_Sym *local_syms = NULL; |
721956f4 AM |
6570 | |
6571 | /* We'll need the symbol table in a second. */ | |
6572 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
6573 | if (symtab_hdr->sh_info == 0) | |
6574 | continue; | |
6575 | ||
721956f4 AM |
6576 | /* Walk over each section attached to the input bfd. */ |
6577 | for (section = input_bfd->sections; | |
6578 | section != NULL; | |
6579 | section = section->next) | |
6580 | { | |
721956f4 | 6581 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
721956f4 AM |
6582 | |
6583 | /* If there aren't any relocs, then there's nothing more | |
6584 | to do. */ | |
6585 | if ((section->flags & SEC_RELOC) == 0 | |
6586 | || section->reloc_count == 0) | |
6587 | continue; | |
6588 | ||
6589 | /* If this section is a link-once section that will be | |
6590 | discarded, then don't create any stubs. */ | |
6591 | if (section->output_section == NULL | |
6592 | || section->output_section->owner != output_bfd) | |
6593 | continue; | |
6594 | ||
1e2f5b6e AM |
6595 | /* Get the relocs. */ |
6596 | internal_relocs | |
45d6a902 AM |
6597 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, |
6598 | (Elf_Internal_Rela *) NULL, | |
6599 | info->keep_memory); | |
721956f4 | 6600 | if (internal_relocs == NULL) |
1e2f5b6e | 6601 | goto error_ret_free_local; |
721956f4 AM |
6602 | |
6603 | /* Now examine each relocation. */ | |
6604 | irela = internal_relocs; | |
6605 | irelaend = irela + section->reloc_count; | |
6606 | for (; irela < irelaend; irela++) | |
6607 | { | |
6608 | unsigned int r_type, r_indx; | |
6609 | enum ppc_stub_type stub_type; | |
6610 | struct ppc_stub_hash_entry *stub_entry; | |
6611 | asection *sym_sec; | |
6612 | bfd_vma sym_value; | |
6613 | bfd_vma destination; | |
6614 | struct ppc_link_hash_entry *hash; | |
411e1bfb AM |
6615 | struct elf_link_hash_entry *h; |
6616 | Elf_Internal_Sym *sym; | |
721956f4 AM |
6617 | char *stub_name; |
6618 | const asection *id_sec; | |
6619 | ||
6620 | r_type = ELF64_R_TYPE (irela->r_info); | |
6621 | r_indx = ELF64_R_SYM (irela->r_info); | |
6622 | ||
04c9666a | 6623 | if (r_type >= (unsigned int) R_PPC64_max) |
721956f4 AM |
6624 | { |
6625 | bfd_set_error (bfd_error_bad_value); | |
6cdc0ccc | 6626 | goto error_ret_free_internal; |
721956f4 AM |
6627 | } |
6628 | ||
6629 | /* Only look for stubs on branch instructions. */ | |
6630 | if (r_type != (unsigned int) R_PPC64_REL24 | |
6631 | && r_type != (unsigned int) R_PPC64_REL14 | |
6632 | && r_type != (unsigned int) R_PPC64_REL14_BRTAKEN | |
6633 | && r_type != (unsigned int) R_PPC64_REL14_BRNTAKEN) | |
6634 | continue; | |
6635 | ||
6636 | /* Now determine the call target, its name, value, | |
6637 | section. */ | |
721956f4 | 6638 | destination = 0; |
411e1bfb AM |
6639 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
6640 | r_indx, input_bfd)) | |
6641 | goto error_ret_free_internal; | |
6642 | hash = (struct ppc_link_hash_entry *) h; | |
6643 | ||
6644 | if (hash == NULL) | |
721956f4 AM |
6645 | { |
6646 | /* It's a local symbol. */ | |
411e1bfb | 6647 | sym_value = sym->st_value; |
721956f4 AM |
6648 | destination = (sym_value + irela->r_addend |
6649 | + sym_sec->output_offset | |
6650 | + sym_sec->output_section->vma); | |
6651 | } | |
6652 | else | |
6653 | { | |
6654 | /* It's an external symbol. */ | |
411e1bfb | 6655 | sym_value = 0; |
721956f4 AM |
6656 | if (hash->elf.root.type == bfd_link_hash_defined |
6657 | || hash->elf.root.type == bfd_link_hash_defweak) | |
6658 | { | |
721956f4 AM |
6659 | sym_value = hash->elf.root.u.def.value; |
6660 | if (sym_sec->output_section != NULL) | |
6661 | destination = (sym_value + irela->r_addend | |
6662 | + sym_sec->output_offset | |
6663 | + sym_sec->output_section->vma); | |
6664 | } | |
6665 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
6666 | ; | |
6667 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
6668 | ; | |
6669 | else | |
6670 | { | |
6671 | bfd_set_error (bfd_error_bad_value); | |
6672 | goto error_ret_free_internal; | |
6673 | } | |
6674 | } | |
6675 | ||
6676 | /* Determine what (if any) linker stub is needed. */ | |
6677 | stub_type = ppc_type_of_stub (section, irela, &hash, | |
6678 | destination); | |
6679 | if (stub_type == ppc_stub_none) | |
6680 | continue; | |
6681 | ||
411e1bfb AM |
6682 | /* __tls_get_addr calls might be eliminated. */ |
6683 | if (stub_type != ppc_stub_plt_call | |
6684 | && hash != NULL | |
6685 | && &hash->elf == htab->tls_get_addr | |
6686 | && section->has_tls_reloc | |
6687 | && irela != internal_relocs) | |
6688 | { | |
6689 | /* Get tls info. */ | |
e7b938ca | 6690 | char *tls_mask; |
411e1bfb | 6691 | |
e7b938ca | 6692 | if (!get_tls_mask (&tls_mask, &local_syms, |
411e1bfb AM |
6693 | irela - 1, input_bfd)) |
6694 | goto error_ret_free_internal; | |
e7b938ca | 6695 | if (*tls_mask != 0) |
411e1bfb AM |
6696 | continue; |
6697 | } | |
6698 | ||
721956f4 AM |
6699 | /* Support for grouping stub sections. */ |
6700 | id_sec = htab->stub_group[section->id].link_sec; | |
6701 | ||
6702 | /* Get the name of this stub. */ | |
6703 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
6704 | if (!stub_name) | |
6705 | goto error_ret_free_internal; | |
6706 | ||
6707 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
b34976b6 | 6708 | stub_name, FALSE, FALSE); |
721956f4 AM |
6709 | if (stub_entry != NULL) |
6710 | { | |
6711 | /* The proper stub has already been created. */ | |
6712 | free (stub_name); | |
6713 | continue; | |
6714 | } | |
6715 | ||
6716 | stub_entry = ppc_add_stub (stub_name, section, htab); | |
6717 | if (stub_entry == NULL) | |
6718 | { | |
6719 | free (stub_name); | |
6cdc0ccc AM |
6720 | error_ret_free_internal: |
6721 | if (elf_section_data (section)->relocs == NULL) | |
6722 | free (internal_relocs); | |
6723 | error_ret_free_local: | |
6724 | if (local_syms != NULL | |
6725 | && (symtab_hdr->contents | |
6726 | != (unsigned char *) local_syms)) | |
6727 | free (local_syms); | |
b34976b6 | 6728 | return FALSE; |
721956f4 AM |
6729 | } |
6730 | ||
6731 | stub_entry->target_value = sym_value; | |
6732 | stub_entry->target_section = sym_sec; | |
6733 | stub_entry->stub_type = stub_type; | |
6734 | stub_entry->h = hash; | |
411e1bfb | 6735 | stub_entry->addend = irela->r_addend; |
b34976b6 | 6736 | stub_changed = TRUE; |
721956f4 AM |
6737 | } |
6738 | ||
6739 | /* We're done with the internal relocs, free them. */ | |
6cdc0ccc | 6740 | if (elf_section_data (section)->relocs != internal_relocs) |
1e2f5b6e | 6741 | free (internal_relocs); |
721956f4 | 6742 | } |
6cdc0ccc AM |
6743 | |
6744 | if (local_syms != NULL | |
6745 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
6746 | { | |
6747 | if (!info->keep_memory) | |
6748 | free (local_syms); | |
6749 | else | |
6750 | symtab_hdr->contents = (unsigned char *) local_syms; | |
6751 | } | |
721956f4 AM |
6752 | } |
6753 | ||
6754 | if (!stub_changed) | |
6755 | break; | |
6756 | ||
6757 | /* OK, we've added some stubs. Find out the new size of the | |
6758 | stub sections. */ | |
6759 | for (stub_sec = htab->stub_bfd->sections; | |
6760 | stub_sec != NULL; | |
6761 | stub_sec = stub_sec->next) | |
6762 | { | |
6763 | stub_sec->_raw_size = 0; | |
6764 | stub_sec->_cooked_size = 0; | |
6765 | } | |
6766 | htab->sbrlt->_raw_size = 0; | |
6767 | htab->sbrlt->_cooked_size = 0; | |
6768 | ||
6769 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, htab); | |
6770 | ||
6771 | /* Ask the linker to do its stuff. */ | |
6772 | (*htab->layout_sections_again) (); | |
6773 | } | |
6774 | ||
afbe61cf AM |
6775 | /* It would be nice to strip .branch_lt from the output if the |
6776 | section is empty, but it's too late. If we strip sections here, | |
6777 | the dynamic symbol table is corrupted since the section symbol | |
6778 | for the stripped section isn't written. */ | |
721956f4 | 6779 | |
b34976b6 | 6780 | return TRUE; |
721956f4 AM |
6781 | } |
6782 | ||
6783 | /* Called after we have determined section placement. If sections | |
805fc799 | 6784 | move, we'll be called again. Provide a value for TOCstart. */ |
721956f4 | 6785 | |
805fc799 AM |
6786 | bfd_vma |
6787 | ppc64_elf_toc (obfd) | |
5d1634d7 | 6788 | bfd *obfd; |
721956f4 | 6789 | { |
805fc799 AM |
6790 | asection *s; |
6791 | bfd_vma TOCstart; | |
721956f4 | 6792 | |
805fc799 AM |
6793 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
6794 | order. The TOC starts where the first of these sections starts. */ | |
6795 | s = bfd_get_section_by_name (obfd, ".got"); | |
6796 | if (s == NULL) | |
6797 | s = bfd_get_section_by_name (obfd, ".toc"); | |
6798 | if (s == NULL) | |
6799 | s = bfd_get_section_by_name (obfd, ".tocbss"); | |
6800 | if (s == NULL) | |
6801 | s = bfd_get_section_by_name (obfd, ".plt"); | |
6802 | if (s == NULL) | |
6803 | { | |
6804 | /* This may happen for | |
6805 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
6806 | .toc directive | |
6807 | o bad linker script | |
6808 | o --gc-sections and empty TOC sections | |
6809 | ||
6810 | FIXME: Warn user? */ | |
6811 | ||
6812 | /* Look for a likely section. We probably won't even be | |
6813 | using TOCstart. */ | |
6814 | for (s = obfd->sections; s != NULL; s = s->next) | |
6815 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY)) | |
6816 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
6817 | break; | |
721956f4 | 6818 | if (s == NULL) |
805fc799 AM |
6819 | for (s = obfd->sections; s != NULL; s = s->next) |
6820 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA)) | |
6821 | == (SEC_ALLOC | SEC_SMALL_DATA)) | |
6822 | break; | |
721956f4 | 6823 | if (s == NULL) |
805fc799 AM |
6824 | for (s = obfd->sections; s != NULL; s = s->next) |
6825 | if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC) | |
6826 | break; | |
721956f4 | 6827 | if (s == NULL) |
805fc799 AM |
6828 | for (s = obfd->sections; s != NULL; s = s->next) |
6829 | if ((s->flags & SEC_ALLOC) == SEC_ALLOC) | |
6830 | break; | |
6831 | } | |
721956f4 | 6832 | |
805fc799 AM |
6833 | TOCstart = 0; |
6834 | if (s != NULL) | |
6835 | TOCstart = s->output_section->vma + s->output_offset; | |
721956f4 | 6836 | |
805fc799 | 6837 | return TOCstart; |
721956f4 AM |
6838 | } |
6839 | ||
6840 | /* Build all the stubs associated with the current output file. | |
6841 | The stubs are kept in a hash table attached to the main linker | |
6842 | hash table. This function is called via gldelf64ppc_finish. */ | |
6843 | ||
b34976b6 | 6844 | bfd_boolean |
721956f4 AM |
6845 | ppc64_elf_build_stubs (info) |
6846 | struct bfd_link_info *info; | |
5d1634d7 AM |
6847 | { |
6848 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
721956f4 | 6849 | asection *stub_sec; |
5d1634d7 AM |
6850 | bfd_vma plt_r2; |
6851 | bfd_byte *p; | |
6852 | ||
721956f4 AM |
6853 | for (stub_sec = htab->stub_bfd->sections; |
6854 | stub_sec != NULL; | |
6855 | stub_sec = stub_sec->next) | |
6856 | { | |
6857 | bfd_size_type size; | |
6858 | ||
6859 | /* Allocate memory to hold the linker stubs. */ | |
6860 | size = stub_sec->_raw_size; | |
6861 | if (size != 0) | |
6862 | { | |
6863 | stub_sec->contents = (bfd_byte *) bfd_zalloc (htab->stub_bfd, size); | |
6864 | if (stub_sec->contents == NULL) | |
b34976b6 | 6865 | return FALSE; |
721956f4 AM |
6866 | } |
6867 | stub_sec->_cooked_size = 0; | |
6868 | } | |
5d1634d7 | 6869 | |
721956f4 | 6870 | if (htab->splt != NULL) |
5d1634d7 | 6871 | { |
9f951329 AM |
6872 | unsigned int indx; |
6873 | ||
721956f4 AM |
6874 | /* Build the .glink plt call stub. */ |
6875 | plt_r2 = (htab->splt->output_offset | |
6876 | + htab->splt->output_section->vma | |
6877 | - elf_gp (htab->splt->output_section->owner) | |
6878 | - TOC_BASE_OFF); | |
6879 | p = htab->sglink->contents; | |
6880 | p = build_plt_stub (htab->sglink->owner, p, (int) plt_r2, 1); | |
9f951329 | 6881 | while (p < htab->sglink->contents + GLINK_CALL_STUB_SIZE) |
721956f4 AM |
6882 | { |
6883 | bfd_put_32 (htab->sglink->owner, NOP, p); | |
6884 | p += 4; | |
6885 | } | |
721956f4 | 6886 | |
9f951329 AM |
6887 | /* Build the .glink lazy link call stubs. */ |
6888 | indx = 0; | |
6889 | while (p < htab->sglink->contents + htab->sglink->_raw_size) | |
6890 | { | |
6891 | if (indx < 0x8000) | |
6892 | { | |
6893 | bfd_put_32 (htab->sglink->owner, LI_R0_0 | indx, p); | |
6894 | p += 4; | |
6895 | } | |
6896 | else | |
6897 | { | |
6898 | bfd_put_32 (htab->sglink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
6899 | p += 4; | |
6900 | bfd_put_32 (htab->sglink->owner, ORI_R0_R0_0 | PPC_LO (indx), p); | |
6901 | p += 4; | |
6902 | } | |
6903 | bfd_put_32 (htab->sglink->owner, | |
6904 | B_DOT | ((htab->sglink->contents - p) & 0x3fffffc), p); | |
a16d5acb | 6905 | indx++; |
9f951329 AM |
6906 | p += 4; |
6907 | } | |
6908 | htab->sglink->_cooked_size = p - htab->sglink->contents; | |
5d1634d7 | 6909 | } |
5d1634d7 | 6910 | |
721956f4 AM |
6911 | if (htab->sbrlt->_raw_size != 0) |
6912 | { | |
6913 | htab->sbrlt->contents = (bfd_byte *) bfd_zalloc (htab->sbrlt->owner, | |
6914 | htab->sbrlt->_raw_size); | |
6915 | if (htab->sbrlt->contents == NULL) | |
b34976b6 | 6916 | return FALSE; |
721956f4 | 6917 | } |
5d1634d7 | 6918 | |
721956f4 AM |
6919 | /* Build the stubs as directed by the stub hash table. */ |
6920 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
5d1634d7 | 6921 | |
721956f4 AM |
6922 | for (stub_sec = htab->stub_bfd->sections; |
6923 | stub_sec != NULL; | |
6924 | stub_sec = stub_sec->next) | |
6925 | { | |
6926 | if (stub_sec->_raw_size != stub_sec->_cooked_size) | |
6927 | break; | |
6928 | } | |
5d1634d7 | 6929 | |
721956f4 | 6930 | if (stub_sec != NULL |
5d1634d7 AM |
6931 | || htab->sglink->_raw_size != htab->sglink->_cooked_size) |
6932 | { | |
b34976b6 | 6933 | htab->stub_error = TRUE; |
721956f4 | 6934 | (*_bfd_error_handler) (_("stubs don't match calculated size")); |
5d1634d7 | 6935 | } |
721956f4 AM |
6936 | |
6937 | return !htab->stub_error; | |
5bd4f169 AM |
6938 | } |
6939 | ||
5bd4f169 AM |
6940 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
6941 | to handle the relocations for a section. | |
6942 | ||
6943 | The relocs are always passed as Rela structures; if the section | |
6944 | actually uses Rel structures, the r_addend field will always be | |
6945 | zero. | |
6946 | ||
6947 | This function is responsible for adjust the section contents as | |
6948 | necessary, and (if using Rela relocs and generating a | |
6949 | relocateable output file) adjusting the reloc addend as | |
6950 | necessary. | |
6951 | ||
6952 | This function does not have to worry about setting the reloc | |
6953 | address or the reloc symbol index. | |
6954 | ||
6955 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
6956 | ||
6957 | LOCAL_SECTIONS is an array giving the section in the input file | |
6958 | corresponding to the st_shndx field of each local symbol. | |
6959 | ||
6960 | The global hash table entry for the global symbols can be found | |
6961 | via elf_sym_hashes (input_bfd). | |
6962 | ||
6963 | When generating relocateable output, this function must handle | |
6964 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
6965 | going to be the section symbol corresponding to the output | |
6966 | section, which means that the addend must be adjusted | |
6967 | accordingly. */ | |
6968 | ||
b34976b6 | 6969 | static bfd_boolean |
5bd4f169 AM |
6970 | ppc64_elf_relocate_section (output_bfd, info, input_bfd, input_section, |
6971 | contents, relocs, local_syms, local_sections) | |
6972 | bfd *output_bfd; | |
6973 | struct bfd_link_info *info; | |
6974 | bfd *input_bfd; | |
6975 | asection *input_section; | |
6976 | bfd_byte *contents; | |
6977 | Elf_Internal_Rela *relocs; | |
6978 | Elf_Internal_Sym *local_syms; | |
6979 | asection **local_sections; | |
6980 | { | |
65f38f15 | 6981 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
6982 | Elf_Internal_Shdr *symtab_hdr; |
6983 | struct elf_link_hash_entry **sym_hashes; | |
5bd4f169 AM |
6984 | Elf_Internal_Rela *rel; |
6985 | Elf_Internal_Rela *relend; | |
411e1bfb AM |
6986 | Elf_Internal_Rela outrel; |
6987 | bfd_byte *loc; | |
411e1bfb | 6988 | struct got_entry **local_got_ents; |
5bd4f169 | 6989 | bfd_vma TOCstart; |
b34976b6 AM |
6990 | bfd_boolean ret = TRUE; |
6991 | bfd_boolean is_opd; | |
96e0dda4 | 6992 | /* Disabled until we sort out how ld should choose 'y' vs 'at'. */ |
b34976b6 | 6993 | bfd_boolean is_power4 = FALSE; |
5bd4f169 | 6994 | |
b491616a | 6995 | if (info->relocateable) |
b34976b6 | 6996 | return TRUE; |
b491616a | 6997 | |
65f38f15 | 6998 | /* Initialize howto table if needed. */ |
5bd4f169 | 6999 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
5bd4f169 AM |
7000 | ppc_howto_init (); |
7001 | ||
65f38f15 | 7002 | htab = ppc_hash_table (info); |
411e1bfb | 7003 | local_got_ents = elf_local_got_ents (input_bfd); |
5bd4f169 | 7004 | TOCstart = elf_gp (output_bfd); |
5bd4f169 AM |
7005 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
7006 | sym_hashes = elf_sym_hashes (input_bfd); | |
f0abc2a1 | 7007 | is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL; |
65f38f15 | 7008 | |
5bd4f169 AM |
7009 | rel = relocs; |
7010 | relend = relocs + input_section->reloc_count; | |
7011 | for (; rel < relend; rel++) | |
7012 | { | |
04c9666a | 7013 | enum elf_ppc64_reloc_type r_type; |
5bd4f169 AM |
7014 | bfd_vma addend; |
7015 | bfd_reloc_status_type r; | |
7016 | Elf_Internal_Sym *sym; | |
7017 | asection *sec; | |
7018 | struct elf_link_hash_entry *h; | |
721956f4 | 7019 | struct elf_link_hash_entry *fdh; |
5bd4f169 | 7020 | const char *sym_name; |
5bd4f169 | 7021 | unsigned long r_symndx; |
951fd09b | 7022 | char tls_mask, tls_gd, tls_type; |
5bd4f169 | 7023 | bfd_vma relocation; |
b34976b6 AM |
7024 | bfd_boolean unresolved_reloc; |
7025 | bfd_boolean warned; | |
dc810e39 | 7026 | long insn; |
721956f4 AM |
7027 | struct ppc_stub_hash_entry *stub_entry; |
7028 | bfd_vma max_br_offset; | |
7029 | bfd_vma from; | |
5bd4f169 | 7030 | |
04c9666a | 7031 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel->r_info); |
5bd4f169 | 7032 | r_symndx = ELF64_R_SYM (rel->r_info); |
65f38f15 AM |
7033 | sym = (Elf_Internal_Sym *) 0; |
7034 | sec = (asection *) 0; | |
7035 | h = (struct elf_link_hash_entry *) 0; | |
7036 | sym_name = (const char *) 0; | |
b34976b6 AM |
7037 | unresolved_reloc = FALSE; |
7038 | warned = FALSE; | |
65f38f15 | 7039 | |
5bd4f169 AM |
7040 | if (r_type == R_PPC64_TOC) |
7041 | { | |
7042 | /* Relocation value is TOC base. Symbol is ignored. */ | |
7043 | relocation = TOCstart + TOC_BASE_OFF; | |
7044 | } | |
7045 | else if (r_symndx < symtab_hdr->sh_info) | |
7046 | { | |
7047 | /* It's a local symbol. */ | |
7048 | sym = local_syms + r_symndx; | |
7049 | sec = local_sections[r_symndx]; | |
411e1bfb | 7050 | sym_name = bfd_elf_local_sym_name (input_bfd, sym); |
f8df10f4 | 7051 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); |
1e2f5b6e AM |
7052 | if (elf_section_data (sec) != NULL) |
7053 | { | |
7054 | long *opd_sym_adjust; | |
7055 | ||
f0abc2a1 | 7056 | opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust; |
1e2f5b6e AM |
7057 | if (opd_sym_adjust != NULL && sym->st_value % 24 == 0) |
7058 | relocation += opd_sym_adjust[sym->st_value / 24]; | |
7059 | } | |
5bd4f169 AM |
7060 | } |
7061 | else | |
7062 | { | |
7063 | /* It's a global symbol. */ | |
7064 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
7065 | while (h->root.type == bfd_link_hash_indirect | |
7066 | || h->root.type == bfd_link_hash_warning) | |
7067 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7068 | sym_name = h->root.root.string; | |
65f38f15 | 7069 | relocation = 0; |
5bd4f169 AM |
7070 | if (h->root.type == bfd_link_hash_defined |
7071 | || h->root.type == bfd_link_hash_defweak) | |
7072 | { | |
7073 | sec = h->root.u.def.section; | |
65f38f15 AM |
7074 | if (sec->output_section == NULL) |
7075 | /* Set a flag that will be cleared later if we find a | |
7076 | relocation value for this symbol. output_section | |
7077 | is typically NULL for symbols satisfied by a shared | |
7078 | library. */ | |
b34976b6 | 7079 | unresolved_reloc = TRUE; |
5bd4f169 AM |
7080 | else |
7081 | relocation = (h->root.u.def.value | |
7082 | + sec->output_section->vma | |
7083 | + sec->output_offset); | |
7084 | } | |
7085 | else if (h->root.type == bfd_link_hash_undefweak) | |
65f38f15 | 7086 | ; |
671bae9c | 7087 | else if (info->shared |
65f38f15 AM |
7088 | && !info->no_undefined |
7089 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
7090 | ; | |
5bd4f169 AM |
7091 | else |
7092 | { | |
7093 | if (! ((*info->callbacks->undefined_symbol) | |
7094 | (info, h->root.root.string, input_bfd, input_section, | |
411e1bfb AM |
7095 | rel->r_offset, (!info->shared |
7096 | || info->no_undefined | |
7097 | || ELF_ST_VISIBILITY (h->other))))) | |
b34976b6 AM |
7098 | return FALSE; |
7099 | warned = TRUE; | |
5bd4f169 AM |
7100 | } |
7101 | } | |
7102 | ||
951fd09b AM |
7103 | /* TLS optimizations. Replace instruction sequences and relocs |
7104 | based on information we collected in tls_optimize. We edit | |
7105 | RELOCS so that --emit-relocs will output something sensible | |
7106 | for the final instruction stream. */ | |
7107 | tls_mask = 0; | |
7108 | tls_gd = 0; | |
d881513a | 7109 | if (IS_PPC64_TLS_RELOC (r_type)) |
411e1bfb AM |
7110 | { |
7111 | if (h != NULL) | |
e7b938ca | 7112 | tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask; |
411e1bfb AM |
7113 | else if (local_got_ents != NULL) |
7114 | { | |
e7b938ca AM |
7115 | char *lgot_masks; |
7116 | lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info); | |
7117 | tls_mask = lgot_masks[r_symndx]; | |
411e1bfb AM |
7118 | } |
7119 | } | |
7120 | ||
7121 | /* Ensure reloc mapping code below stays sane. */ | |
7122 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
7123 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
7124 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
7125 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
7126 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
7127 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
7128 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
7129 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
7130 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
7131 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
7132 | abort (); | |
7133 | switch (r_type) | |
7134 | { | |
7135 | default: | |
411e1bfb AM |
7136 | break; |
7137 | ||
7138 | case R_PPC64_TOC16: | |
7139 | case R_PPC64_TOC16_LO: | |
7140 | case R_PPC64_TOC16_DS: | |
7141 | case R_PPC64_TOC16_LO_DS: | |
411e1bfb AM |
7142 | { |
7143 | /* Check for toc tls entries. */ | |
7144 | char *toc_tls; | |
951fd09b | 7145 | int retval; |
411e1bfb | 7146 | |
e7b938ca | 7147 | retval = get_tls_mask (&toc_tls, &local_syms, rel, input_bfd); |
951fd09b | 7148 | if (retval == 0) |
411e1bfb AM |
7149 | return FALSE; |
7150 | ||
7151 | if (toc_tls) | |
7152 | { | |
951fd09b | 7153 | tls_mask = *toc_tls; |
411e1bfb AM |
7154 | if (r_type == R_PPC64_TOC16_DS |
7155 | || r_type == R_PPC64_TOC16_LO_DS) | |
7156 | goto toctprel; | |
7157 | else | |
951fd09b AM |
7158 | { |
7159 | /* If we found a GD reloc pair, then we might be | |
7160 | doing a GD->IE transition. */ | |
7161 | if (retval == 2) | |
7162 | { | |
7163 | tls_gd = TLS_TPRELGD; | |
7164 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7165 | goto tls_get_addr_check; | |
7166 | } | |
7167 | else if (retval == 3) | |
7168 | { | |
7169 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7170 | goto tls_get_addr_check; | |
7171 | } | |
7172 | } | |
411e1bfb AM |
7173 | } |
7174 | } | |
7175 | break; | |
7176 | ||
7177 | case R_PPC64_GOT_TPREL16_DS: | |
7178 | case R_PPC64_GOT_TPREL16_LO_DS: | |
411e1bfb | 7179 | toctprel: |
951fd09b AM |
7180 | if (tls_mask != 0 |
7181 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7182 | { |
7183 | bfd_vma insn; | |
7184 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2); | |
7185 | insn &= 31 << 21; | |
7186 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
7187 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2); | |
7188 | r_type = R_PPC64_TPREL16_HA; | |
7189 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7190 | } | |
7191 | break; | |
7192 | ||
7193 | case R_PPC64_TLS: | |
951fd09b | 7194 | if (tls_mask == 0) |
411e1bfb AM |
7195 | { |
7196 | /* Check for toc tls entries. */ | |
7197 | char *toc_tls; | |
7198 | ||
e7b938ca | 7199 | if (!get_tls_mask (&toc_tls, &local_syms, rel, input_bfd)) |
411e1bfb AM |
7200 | return FALSE; |
7201 | ||
7202 | if (toc_tls) | |
951fd09b | 7203 | tls_mask = *toc_tls; |
411e1bfb | 7204 | } |
951fd09b AM |
7205 | if (tls_mask != 0 |
7206 | && (tls_mask & TLS_TPREL) == 0) | |
411e1bfb AM |
7207 | { |
7208 | bfd_vma insn, rtra; | |
7209 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
7210 | if ((insn & ((31 << 26) | (31 << 11))) | |
7211 | == ((31 << 26) | (13 << 11))) | |
7212 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7213 | else if ((insn & ((31 << 26) | (31 << 16))) | |
7214 | == ((31 << 26) | (13 << 16))) | |
7215 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
7216 | else | |
7217 | abort (); | |
7218 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
7219 | /* add -> addi. */ | |
7220 | insn = 14 << 26; | |
7221 | else if ((insn & (31 << 1)) == 23 << 1 | |
7222 | && ((insn & (31 << 6)) < 14 << 6 | |
7223 | || ((insn & (31 << 6)) >= 16 << 6 | |
7224 | && (insn & (31 << 6)) < 24 << 6))) | |
7225 | /* load and store indexed -> dform. */ | |
7226 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
7227 | else if ((insn & (31 << 1)) == 21 << 1 | |
7228 | && (insn & (0x1a << 6)) == 0) | |
7229 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7230 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
7231 | | ((insn >> 6) & 1)); | |
7232 | else if ((insn & (31 << 1)) == 21 << 1 | |
7233 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
7234 | /* lwax -> lwa. */ | |
7235 | insn = (58 << 26) | 2; | |
7236 | else | |
7237 | abort (); | |
7238 | insn |= rtra; | |
7239 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
7240 | r_type = R_PPC64_TPREL16_LO; | |
7241 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7242 | /* Was PPC64_TLS which sits on insn boundary, now | |
7243 | PPC64_TPREL16_LO which is at insn+2. */ | |
7244 | rel->r_offset += 2; | |
7245 | } | |
7246 | break; | |
7247 | ||
411e1bfb AM |
7248 | case R_PPC64_GOT_TLSGD16_HI: |
7249 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b AM |
7250 | tls_gd = TLS_TPRELGD; |
7251 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7252 | goto tls_gdld_hi; | |
7253 | break; | |
7254 | ||
411e1bfb AM |
7255 | case R_PPC64_GOT_TLSLD16_HI: |
7256 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7257 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
411e1bfb | 7258 | { |
951fd09b AM |
7259 | tls_gdld_hi: |
7260 | if ((tls_mask & tls_gd) != 0) | |
7261 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7262 | + R_PPC64_GOT_TPREL16_DS); | |
7263 | else | |
411e1bfb | 7264 | { |
951fd09b AM |
7265 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7266 | rel->r_offset -= 2; | |
7267 | r_type = R_PPC64_NONE; | |
411e1bfb | 7268 | } |
951fd09b | 7269 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb AM |
7270 | } |
7271 | break; | |
7272 | ||
951fd09b AM |
7273 | case R_PPC64_GOT_TLSGD16: |
7274 | case R_PPC64_GOT_TLSGD16_LO: | |
7275 | tls_gd = TLS_TPRELGD; | |
7276 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
7277 | goto tls_get_addr_check; | |
7278 | break; | |
411e1bfb | 7279 | |
951fd09b AM |
7280 | case R_PPC64_GOT_TLSLD16: |
7281 | case R_PPC64_GOT_TLSLD16_LO: | |
7282 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
7283 | { | |
7284 | tls_get_addr_check: | |
7285 | if (rel + 1 < relend) | |
411e1bfb | 7286 | { |
951fd09b AM |
7287 | enum elf_ppc64_reloc_type r_type2; |
7288 | unsigned long r_symndx2; | |
7289 | struct elf_link_hash_entry *h2; | |
7290 | bfd_vma insn1, insn2, insn3; | |
7291 | bfd_vma offset; | |
7292 | ||
7293 | /* The next instruction should be a call to | |
7294 | __tls_get_addr. Peek at the reloc to be sure. */ | |
7295 | r_type2 | |
7296 | = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rel[1].r_info); | |
7297 | r_symndx2 = ELF64_R_SYM (rel[1].r_info); | |
7298 | if (r_symndx2 < symtab_hdr->sh_info | |
7299 | || (r_type2 != R_PPC64_REL14 | |
7300 | && r_type2 != R_PPC64_REL14_BRTAKEN | |
7301 | && r_type2 != R_PPC64_REL14_BRNTAKEN | |
7302 | && r_type2 != R_PPC64_REL24)) | |
7303 | break; | |
7304 | ||
7305 | h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info]; | |
7306 | while (h2->root.type == bfd_link_hash_indirect | |
7307 | || h2->root.type == bfd_link_hash_warning) | |
7308 | h2 = (struct elf_link_hash_entry *) h2->root.u.i.link; | |
7309 | if (h2 == NULL || h2 != htab->tls_get_addr) | |
7310 | break; | |
7311 | ||
7312 | /* OK, it checks out. Replace the call. */ | |
7313 | offset = rel[1].r_offset; | |
7314 | insn1 = bfd_get_32 (output_bfd, | |
7315 | contents + rel->r_offset - 2); | |
7316 | insn3 = bfd_get_32 (output_bfd, | |
7317 | contents + offset + 4); | |
7318 | if ((tls_mask & tls_gd) != 0) | |
411e1bfb | 7319 | { |
951fd09b AM |
7320 | /* IE */ |
7321 | insn1 &= (1 << 26) - (1 << 2); | |
7322 | insn1 |= 58 << 26; /* ld */ | |
7323 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
7324 | rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE); | |
7325 | if ((tls_mask & TLS_EXPLICIT) == 0) | |
7326 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
7327 | + R_PPC64_GOT_TPREL16_DS); | |
7328 | else | |
7329 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; | |
7330 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
411e1bfb AM |
7331 | } |
7332 | else | |
951fd09b AM |
7333 | { |
7334 | /* LE */ | |
7335 | insn1 = 0x3c6d0000; /* addis 3,13,0 */ | |
7336 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7337 | if (tls_gd == 0) | |
7338 | { | |
7339 | /* Was an LD reloc. */ | |
7340 | r_symndx = 0; | |
7341 | rel->r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7342 | rel[1].r_addend = htab->tls_sec->vma + DTP_OFFSET; | |
7343 | } | |
7344 | r_type = R_PPC64_TPREL16_HA; | |
7345 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7346 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
7347 | R_PPC64_TPREL16_LO); | |
7348 | rel[1].r_offset += 2; | |
7349 | } | |
7350 | if (insn3 == NOP | |
7351 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
7352 | { | |
7353 | insn3 = insn2; | |
7354 | insn2 = NOP; | |
7355 | rel[1].r_offset += 4; | |
7356 | } | |
7357 | bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2); | |
7358 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7359 | bfd_put_32 (output_bfd, insn3, contents + offset + 4); | |
7360 | if (tls_gd == 0) | |
7361 | { | |
7362 | /* We changed the symbol on an LD reloc. Start over | |
7363 | in order to get h, sym, sec etc. right. */ | |
7364 | rel--; | |
7365 | continue; | |
7366 | } | |
411e1bfb | 7367 | } |
411e1bfb | 7368 | } |
411e1bfb AM |
7369 | break; |
7370 | ||
7371 | case R_PPC64_DTPMOD64: | |
951fd09b AM |
7372 | if (rel + 1 < relend |
7373 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
7374 | && rel[1].r_offset == rel->r_offset + 8) | |
411e1bfb | 7375 | { |
951fd09b AM |
7376 | if ((tls_mask & TLS_GD) == 0) |
7377 | { | |
7378 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
7379 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7380 | r_type = R_PPC64_TPREL64; | |
7381 | else | |
7382 | { | |
7383 | bfd_put_64 (output_bfd, (bfd_vma) 1, | |
7384 | contents + rel->r_offset); | |
7385 | r_type = R_PPC64_NONE; | |
7386 | } | |
7387 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7388 | } | |
7389 | } | |
7390 | else | |
7391 | { | |
7392 | if ((tls_mask & TLS_LD) == 0) | |
411e1bfb AM |
7393 | { |
7394 | bfd_put_64 (output_bfd, (bfd_vma) 1, | |
7395 | contents + rel->r_offset); | |
7396 | r_type = R_PPC64_NONE; | |
951fd09b | 7397 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
411e1bfb | 7398 | } |
411e1bfb AM |
7399 | } |
7400 | break; | |
7401 | ||
7402 | case R_PPC64_TPREL64: | |
951fd09b | 7403 | if ((tls_mask & TLS_TPREL) == 0) |
411e1bfb AM |
7404 | { |
7405 | r_type = R_PPC64_NONE; | |
7406 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
7407 | } | |
7408 | break; | |
7409 | } | |
7410 | ||
7411 | /* Handle other relocations that tweak non-addend part of insn. */ | |
86c76c7b | 7412 | insn = 0; |
65f38f15 | 7413 | switch (r_type) |
5bd4f169 AM |
7414 | { |
7415 | default: | |
65f38f15 | 7416 | break; |
5bd4f169 | 7417 | |
65f38f15 AM |
7418 | /* Branch taken prediction relocations. */ |
7419 | case R_PPC64_ADDR14_BRTAKEN: | |
7420 | case R_PPC64_REL14_BRTAKEN: | |
cedb70c5 KH |
7421 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
7422 | /* Fall thru. */ | |
65f38f15 | 7423 | |
86c76c7b | 7424 | /* Branch not taken prediction relocations. */ |
65f38f15 AM |
7425 | case R_PPC64_ADDR14_BRNTAKEN: |
7426 | case R_PPC64_REL14_BRNTAKEN: | |
411e1bfb AM |
7427 | insn |= bfd_get_32 (output_bfd, |
7428 | contents + rel->r_offset) & ~(0x01 << 21); | |
96e0dda4 AM |
7429 | if (is_power4) |
7430 | { | |
7431 | /* Set 'a' bit. This is 0b00010 in BO field for branch | |
7432 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
7433 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
7434 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
7435 | insn |= 0x02 << 21; | |
7436 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
7437 | insn |= 0x08 << 21; | |
7438 | else | |
7439 | break; | |
7440 | } | |
65f38f15 | 7441 | else |
96e0dda4 | 7442 | { |
411e1bfb | 7443 | from = (rel->r_offset |
805fc799 AM |
7444 | + input_section->output_offset |
7445 | + input_section->output_section->vma); | |
7446 | ||
96e0dda4 | 7447 | /* Invert 'y' bit if not the default. */ |
411e1bfb | 7448 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) |
96e0dda4 AM |
7449 | insn ^= 0x01 << 21; |
7450 | } | |
86c76c7b | 7451 | |
411e1bfb | 7452 | bfd_put_32 (output_bfd, (bfd_vma) insn, contents + rel->r_offset); |
65f38f15 | 7453 | break; |
5bd4f169 | 7454 | |
65f38f15 | 7455 | case R_PPC64_REL24: |
721956f4 AM |
7456 | /* A REL24 branching to a linkage function is followed by a |
7457 | nop. We replace the nop with a ld in order to restore | |
7458 | the TOC base pointer. Only calls to shared objects need | |
7459 | to alter the TOC base. These are recognized by their | |
7460 | need for a PLT entry. */ | |
5bd4f169 | 7461 | if (h != NULL |
721956f4 | 7462 | && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL |
411e1bfb | 7463 | && fdh->plt.plist != NULL |
721956f4 AM |
7464 | && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh, |
7465 | rel, htab)) != NULL) | |
41bd81ab | 7466 | { |
b34976b6 | 7467 | bfd_boolean can_plt_call = 0; |
721956f4 | 7468 | |
411e1bfb | 7469 | if (rel->r_offset + 8 <= input_section->_cooked_size) |
41bd81ab | 7470 | { |
411e1bfb | 7471 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
721956f4 AM |
7472 | if (insn == NOP |
7473 | || insn == CROR_151515 || insn == CROR_313131) | |
41bd81ab | 7474 | { |
721956f4 | 7475 | bfd_put_32 (input_bfd, (bfd_vma) LD_R2_40R1, |
411e1bfb | 7476 | contents + rel->r_offset + 4); |
721956f4 | 7477 | can_plt_call = 1; |
41bd81ab | 7478 | } |
5bd4f169 | 7479 | } |
721956f4 AM |
7480 | |
7481 | if (!can_plt_call) | |
7482 | { | |
7483 | /* If this is a plain branch rather than a branch | |
7484 | and link, don't require a nop. */ | |
411e1bfb | 7485 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
721956f4 AM |
7486 | if ((insn & 1) == 0) |
7487 | can_plt_call = 1; | |
7488 | } | |
7489 | ||
7490 | if (can_plt_call) | |
7491 | { | |
7492 | relocation = (stub_entry->stub_offset | |
7493 | + stub_entry->stub_sec->output_offset | |
7494 | + stub_entry->stub_sec->output_section->vma); | |
b34976b6 | 7495 | unresolved_reloc = FALSE; |
721956f4 | 7496 | } |
5bd4f169 | 7497 | } |
e86ce104 AM |
7498 | |
7499 | if (h != NULL | |
7500 | && h->root.type == bfd_link_hash_undefweak | |
721956f4 | 7501 | && relocation == 0 |
411e1bfb | 7502 | && rel->r_addend == 0) |
e86ce104 | 7503 | { |
721956f4 AM |
7504 | /* Tweak calls to undefined weak functions to point at a |
7505 | blr. We can thus call a weak function without first | |
7506 | checking whether the function is defined. We have a | |
7507 | blr at the end of .sfpr. */ | |
805fc799 | 7508 | BFD_ASSERT (htab->sfpr->_raw_size != 0); |
721956f4 AM |
7509 | relocation = (htab->sfpr->_raw_size - 4 |
7510 | + htab->sfpr->output_offset | |
7511 | + htab->sfpr->output_section->vma); | |
411e1bfb | 7512 | from = (rel->r_offset |
721956f4 AM |
7513 | + input_section->output_offset |
7514 | + input_section->output_section->vma); | |
805fc799 | 7515 | |
721956f4 AM |
7516 | /* But let's not be silly about it. If the blr isn't in |
7517 | reach, just go to the next instruction. */ | |
805fc799 AM |
7518 | if (relocation - from + (1 << 25) >= (1 << 26) |
7519 | || htab->sfpr->_raw_size == 0) | |
721956f4 | 7520 | relocation = from + 4; |
e86ce104 | 7521 | } |
65f38f15 AM |
7522 | break; |
7523 | } | |
5bd4f169 | 7524 | |
65f38f15 | 7525 | /* Set `addend'. */ |
411e1bfb AM |
7526 | tls_type = 0; |
7527 | addend = rel->r_addend; | |
65f38f15 AM |
7528 | switch (r_type) |
7529 | { | |
7530 | default: | |
7531 | (*_bfd_error_handler) | |
7532 | (_("%s: unknown relocation type %d for symbol %s"), | |
7533 | bfd_archive_filename (input_bfd), (int) r_type, sym_name); | |
5bd4f169 | 7534 | |
65f38f15 | 7535 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7536 | ret = FALSE; |
65f38f15 | 7537 | continue; |
5bd4f169 | 7538 | |
65f38f15 | 7539 | case R_PPC64_NONE: |
411e1bfb | 7540 | case R_PPC64_TLS: |
04c9666a AM |
7541 | case R_PPC64_GNU_VTINHERIT: |
7542 | case R_PPC64_GNU_VTENTRY: | |
65f38f15 | 7543 | continue; |
5bd4f169 AM |
7544 | |
7545 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
7546 | address in the GOT as relocation value instead of the | |
411e1bfb | 7547 | symbol's value itself. Also, create a GOT entry for the |
5bd4f169 | 7548 | symbol and put the symbol value there. */ |
411e1bfb AM |
7549 | case R_PPC64_GOT_TLSGD16: |
7550 | case R_PPC64_GOT_TLSGD16_LO: | |
7551 | case R_PPC64_GOT_TLSGD16_HI: | |
7552 | case R_PPC64_GOT_TLSGD16_HA: | |
951fd09b | 7553 | tls_type = TLS_TLS | TLS_GD; |
411e1bfb AM |
7554 | goto dogot; |
7555 | ||
7556 | case R_PPC64_GOT_TLSLD16: | |
7557 | case R_PPC64_GOT_TLSLD16_LO: | |
7558 | case R_PPC64_GOT_TLSLD16_HI: | |
7559 | case R_PPC64_GOT_TLSLD16_HA: | |
951fd09b | 7560 | tls_type = TLS_TLS | TLS_LD; |
411e1bfb AM |
7561 | goto dogot; |
7562 | ||
7563 | case R_PPC64_GOT_TPREL16_DS: | |
7564 | case R_PPC64_GOT_TPREL16_LO_DS: | |
7565 | case R_PPC64_GOT_TPREL16_HI: | |
7566 | case R_PPC64_GOT_TPREL16_HA: | |
7567 | tls_type = TLS_TLS | TLS_TPREL; | |
7568 | goto dogot; | |
7569 | ||
7570 | case R_PPC64_GOT_DTPREL16_DS: | |
7571 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
7572 | case R_PPC64_GOT_DTPREL16_HI: | |
7573 | case R_PPC64_GOT_DTPREL16_HA: | |
7574 | tls_type = TLS_TLS | TLS_DTPREL; | |
7575 | goto dogot; | |
7576 | ||
65f38f15 AM |
7577 | case R_PPC64_GOT16: |
7578 | case R_PPC64_GOT16_LO: | |
7579 | case R_PPC64_GOT16_HI: | |
7580 | case R_PPC64_GOT16_HA: | |
7581 | case R_PPC64_GOT16_DS: | |
7582 | case R_PPC64_GOT16_LO_DS: | |
411e1bfb | 7583 | dogot: |
5bd4f169 AM |
7584 | { |
7585 | /* Relocation is to the entry for this symbol in the global | |
7586 | offset table. */ | |
d881513a | 7587 | bfd_vma *offp; |
5bd4f169 | 7588 | bfd_vma off; |
d881513a | 7589 | unsigned long indx = 0; |
65f38f15 AM |
7590 | |
7591 | if (htab->sgot == NULL) | |
7592 | abort (); | |
5bd4f169 | 7593 | |
d881513a AM |
7594 | if (tls_type == (TLS_TLS | TLS_LD) |
7595 | && (h == NULL | |
7596 | || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))) | |
7597 | offp = &htab->tlsld_got.offset; | |
411e1bfb | 7598 | else |
5bd4f169 | 7599 | { |
d881513a | 7600 | struct got_entry *ent; |
5bd4f169 | 7601 | |
d881513a AM |
7602 | if (h != NULL) |
7603 | { | |
7604 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
f4656909 | 7605 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
d881513a | 7606 | || (info->shared |
586119b3 | 7607 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
d881513a AM |
7608 | /* This is actually a static link, or it is a |
7609 | -Bsymbolic link and the symbol is defined | |
7610 | locally, or the symbol was forced to be local | |
7611 | because of a version file. */ | |
7612 | ; | |
7613 | else | |
7614 | { | |
7615 | indx = h->dynindx; | |
7616 | unresolved_reloc = FALSE; | |
7617 | } | |
7618 | ent = h->got.glist; | |
7619 | } | |
411e1bfb | 7620 | else |
5bd4f169 | 7621 | { |
d881513a AM |
7622 | if (local_got_ents == NULL) |
7623 | abort (); | |
7624 | ent = local_got_ents[r_symndx]; | |
5bd4f169 | 7625 | } |
d881513a AM |
7626 | |
7627 | for (; ent != NULL; ent = ent->next) | |
7628 | if (ent->addend == rel->r_addend | |
7629 | && ent->tls_type == tls_type) | |
7630 | break; | |
7631 | if (ent == NULL) | |
7632 | abort (); | |
7633 | offp = &ent->got.offset; | |
5bd4f169 | 7634 | } |
411e1bfb AM |
7635 | |
7636 | /* The offset must always be a multiple of 8. We use the | |
7637 | least significant bit to record whether we have already | |
7638 | processed this entry. */ | |
d881513a | 7639 | off = *offp; |
411e1bfb AM |
7640 | if ((off & 1) != 0) |
7641 | off &= ~1; | |
5bd4f169 AM |
7642 | else |
7643 | { | |
411e1bfb AM |
7644 | /* Generate relocs for the dynamic linker, except in |
7645 | the case of TLSLD where we'll use one entry per | |
7646 | module. */ | |
d881513a | 7647 | *offp = off | 1; |
4e795f50 AM |
7648 | if ((info->shared || indx != 0) |
7649 | && (h == NULL | |
7650 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7651 | || h->root.type != bfd_link_hash_undefweak)) | |
5bd4f169 | 7652 | { |
411e1bfb AM |
7653 | outrel.r_offset = (htab->sgot->output_section->vma |
7654 | + htab->sgot->output_offset | |
7655 | + off); | |
d881513a | 7656 | if (tls_type & (TLS_LD | TLS_GD)) |
5bd4f169 | 7657 | { |
411e1bfb | 7658 | outrel.r_addend = 0; |
e515b051 | 7659 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
d881513a AM |
7660 | if (tls_type == (TLS_TLS | TLS_GD)) |
7661 | { | |
7662 | loc = htab->srelgot->contents; | |
7663 | loc += (htab->srelgot->reloc_count++ | |
7664 | * sizeof (Elf64_External_Rela)); | |
7665 | bfd_elf64_swap_reloca_out (output_bfd, | |
7666 | &outrel, loc); | |
e515b051 | 7667 | outrel.r_offset += 8; |
d881513a AM |
7668 | outrel.r_info |
7669 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
d881513a | 7670 | } |
411e1bfb | 7671 | } |
951fd09b | 7672 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
411e1bfb | 7673 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
951fd09b | 7674 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb AM |
7675 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
7676 | else if (indx == 0) | |
7677 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE); | |
7678 | else | |
7679 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
951fd09b | 7680 | outrel.r_addend = rel->r_addend; |
411e1bfb | 7681 | if (indx == 0) |
e515b051 AM |
7682 | { |
7683 | outrel.r_addend += relocation; | |
7684 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
7685 | outrel.r_addend -= htab->tls_sec->vma; | |
7686 | } | |
411e1bfb AM |
7687 | loc = htab->srelgot->contents; |
7688 | loc += (htab->srelgot->reloc_count++ | |
7689 | * sizeof (Elf64_External_Rela)); | |
7690 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
7691 | } | |
7692 | ||
7693 | /* Init the .got section contents if we're not | |
7694 | emitting a reloc. */ | |
d881513a | 7695 | else |
411e1bfb | 7696 | { |
d881513a | 7697 | relocation += rel->r_addend; |
7b609f53 AM |
7698 | if (tls_type == (TLS_TLS | TLS_LD)) |
7699 | relocation = 1; | |
7700 | else if (tls_type != 0) | |
411e1bfb AM |
7701 | { |
7702 | relocation -= htab->tls_sec->vma + DTP_OFFSET; | |
7b609f53 | 7703 | if (tls_type == (TLS_TLS | TLS_TPREL)) |
411e1bfb | 7704 | relocation += DTP_OFFSET - TP_OFFSET; |
5bd4f169 | 7705 | |
7b609f53 AM |
7706 | if (tls_type == (TLS_TLS | TLS_GD)) |
7707 | { | |
7708 | bfd_put_64 (output_bfd, relocation, | |
7709 | htab->sgot->contents + off + 8); | |
7710 | relocation = 1; | |
7711 | } | |
411e1bfb | 7712 | } |
7b609f53 | 7713 | |
411e1bfb AM |
7714 | bfd_put_64 (output_bfd, relocation, |
7715 | htab->sgot->contents + off); | |
5bd4f169 AM |
7716 | } |
7717 | } | |
7718 | ||
65f38f15 AM |
7719 | if (off >= (bfd_vma) -2) |
7720 | abort (); | |
7721 | ||
7722 | relocation = htab->sgot->output_offset + off; | |
7723 | ||
5bd4f169 | 7724 | /* TOC base (r2) is TOC start plus 0x8000. */ |
411e1bfb | 7725 | addend = - TOC_BASE_OFF; |
5bd4f169 | 7726 | } |
65f38f15 AM |
7727 | break; |
7728 | ||
7729 | case R_PPC64_PLT16_HA: | |
7730 | case R_PPC64_PLT16_HI: | |
7731 | case R_PPC64_PLT16_LO: | |
7732 | case R_PPC64_PLT32: | |
7733 | case R_PPC64_PLT64: | |
7734 | /* Relocation is to the entry for this symbol in the | |
7735 | procedure linkage table. */ | |
7736 | ||
7737 | /* Resolve a PLT reloc against a local symbol directly, | |
7738 | without using the procedure linkage table. */ | |
7739 | if (h == NULL) | |
7740 | break; | |
7741 | ||
411e1bfb AM |
7742 | /* It's possible that we didn't make a PLT entry for this |
7743 | symbol. This happens when statically linking PIC code, | |
7744 | or when using -Bsymbolic. Go find a match if there is a | |
7745 | PLT entry. */ | |
7746 | if (htab->splt != NULL) | |
65f38f15 | 7747 | { |
411e1bfb AM |
7748 | struct plt_entry *ent; |
7749 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
7750 | if (ent->addend == rel->r_addend | |
7751 | && ent->plt.offset != (bfd_vma) -1) | |
7752 | { | |
7753 | relocation = (htab->splt->output_section->vma | |
7754 | + htab->splt->output_offset | |
7755 | + ent->plt.offset); | |
7756 | unresolved_reloc = FALSE; | |
7757 | } | |
65f38f15 | 7758 | } |
65f38f15 | 7759 | break; |
5bd4f169 AM |
7760 | |
7761 | /* TOC16 relocs. We want the offset relative to the TOC base, | |
7762 | which is the address of the start of the TOC plus 0x8000. | |
7763 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
7764 | in this order. */ | |
65f38f15 AM |
7765 | case R_PPC64_TOC16: |
7766 | case R_PPC64_TOC16_LO: | |
7767 | case R_PPC64_TOC16_HI: | |
7768 | case R_PPC64_TOC16_DS: | |
7769 | case R_PPC64_TOC16_LO_DS: | |
7770 | case R_PPC64_TOC16_HA: | |
5bd4f169 | 7771 | addend -= TOCstart + TOC_BASE_OFF; |
5bd4f169 AM |
7772 | break; |
7773 | ||
7774 | /* Relocate against the beginning of the section. */ | |
65f38f15 AM |
7775 | case R_PPC64_SECTOFF: |
7776 | case R_PPC64_SECTOFF_LO: | |
7777 | case R_PPC64_SECTOFF_HI: | |
7778 | case R_PPC64_SECTOFF_DS: | |
7779 | case R_PPC64_SECTOFF_LO_DS: | |
7780 | case R_PPC64_SECTOFF_HA: | |
7781 | if (sec != (asection *) 0) | |
7782 | addend -= sec->output_section->vma; | |
5bd4f169 AM |
7783 | break; |
7784 | ||
721956f4 AM |
7785 | case R_PPC64_REL14: |
7786 | case R_PPC64_REL14_BRNTAKEN: | |
7787 | case R_PPC64_REL14_BRTAKEN: | |
5d1634d7 AM |
7788 | case R_PPC64_REL24: |
7789 | break; | |
7790 | ||
411e1bfb AM |
7791 | case R_PPC64_TPREL16: |
7792 | case R_PPC64_TPREL16_LO: | |
7793 | case R_PPC64_TPREL16_HI: | |
7794 | case R_PPC64_TPREL16_HA: | |
7795 | case R_PPC64_TPREL16_DS: | |
7796 | case R_PPC64_TPREL16_LO_DS: | |
7797 | case R_PPC64_TPREL16_HIGHER: | |
7798 | case R_PPC64_TPREL16_HIGHERA: | |
7799 | case R_PPC64_TPREL16_HIGHEST: | |
7800 | case R_PPC64_TPREL16_HIGHESTA: | |
7801 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
7802 | if (info->shared) | |
7803 | /* The TPREL16 relocs shouldn't really be used in shared | |
7804 | libs as they will result in DT_TEXTREL being set, but | |
7805 | support them anyway. */ | |
7806 | goto dodyn; | |
7807 | break; | |
7808 | ||
7809 | case R_PPC64_DTPREL16: | |
7810 | case R_PPC64_DTPREL16_LO: | |
7811 | case R_PPC64_DTPREL16_HI: | |
7812 | case R_PPC64_DTPREL16_HA: | |
7813 | case R_PPC64_DTPREL16_DS: | |
7814 | case R_PPC64_DTPREL16_LO_DS: | |
7815 | case R_PPC64_DTPREL16_HIGHER: | |
7816 | case R_PPC64_DTPREL16_HIGHERA: | |
7817 | case R_PPC64_DTPREL16_HIGHEST: | |
7818 | case R_PPC64_DTPREL16_HIGHESTA: | |
7819 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
7820 | break; | |
7821 | ||
e515b051 AM |
7822 | case R_PPC64_DTPMOD64: |
7823 | relocation = 1; | |
7824 | addend = 0; | |
7825 | goto dodyn; | |
7826 | ||
411e1bfb AM |
7827 | case R_PPC64_TPREL64: |
7828 | addend -= htab->tls_sec->vma + TP_OFFSET; | |
7829 | goto dodyn; | |
7830 | ||
7831 | case R_PPC64_DTPREL64: | |
7832 | addend -= htab->tls_sec->vma + DTP_OFFSET; | |
7833 | /* Fall thru */ | |
7834 | ||
65f38f15 AM |
7835 | /* Relocations that may need to be propagated if this is a |
7836 | dynamic object. */ | |
04c9666a | 7837 | case R_PPC64_REL30: |
65f38f15 AM |
7838 | case R_PPC64_REL32: |
7839 | case R_PPC64_REL64: | |
7840 | case R_PPC64_ADDR14: | |
7841 | case R_PPC64_ADDR14_BRNTAKEN: | |
7842 | case R_PPC64_ADDR14_BRTAKEN: | |
7843 | case R_PPC64_ADDR16: | |
7844 | case R_PPC64_ADDR16_DS: | |
7845 | case R_PPC64_ADDR16_HA: | |
7846 | case R_PPC64_ADDR16_HI: | |
7847 | case R_PPC64_ADDR16_HIGHER: | |
7848 | case R_PPC64_ADDR16_HIGHERA: | |
7849 | case R_PPC64_ADDR16_HIGHEST: | |
7850 | case R_PPC64_ADDR16_HIGHESTA: | |
7851 | case R_PPC64_ADDR16_LO: | |
7852 | case R_PPC64_ADDR16_LO_DS: | |
7853 | case R_PPC64_ADDR24: | |
65f38f15 AM |
7854 | case R_PPC64_ADDR32: |
7855 | case R_PPC64_ADDR64: | |
7856 | case R_PPC64_UADDR16: | |
7857 | case R_PPC64_UADDR32: | |
7858 | case R_PPC64_UADDR64: | |
ec338859 AM |
7859 | /* r_symndx will be zero only for relocs against symbols |
7860 | from removed linkonce sections, or sections discarded by | |
7861 | a linker script. */ | |
411e1bfb | 7862 | dodyn: |
5d1634d7 AM |
7863 | if (r_symndx == 0) |
7864 | break; | |
7865 | /* Fall thru. */ | |
7866 | ||
7867 | case R_PPC64_TOC: | |
7868 | if ((input_section->flags & SEC_ALLOC) == 0) | |
ec338859 AM |
7869 | break; |
7870 | ||
41bd81ab AM |
7871 | if (NO_OPD_RELOCS && is_opd) |
7872 | break; | |
7873 | ||
65f38f15 | 7874 | if ((info->shared |
4e795f50 AM |
7875 | && (h == NULL |
7876 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
7877 | || h->root.type != bfd_link_hash_undefweak) | |
411e1bfb | 7878 | && (MUST_BE_DYN_RELOC (r_type) |
65f38f15 | 7879 | || (h != NULL |
09695f56 | 7880 | && !SYMBOL_CALLS_LOCAL (info, h)))) |
f4656909 AM |
7881 | || (ELIMINATE_COPY_RELOCS |
7882 | && !info->shared | |
65f38f15 AM |
7883 | && h != NULL |
7884 | && h->dynindx != -1 | |
7885 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
58ac9f71 AM |
7886 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 |
7887 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
65f38f15 AM |
7888 | { |
7889 | Elf_Internal_Rela outrel; | |
b34976b6 | 7890 | bfd_boolean skip, relocate; |
65f38f15 | 7891 | asection *sreloc; |
947216bf | 7892 | bfd_byte *loc; |
65f38f15 AM |
7893 | |
7894 | /* When generating a dynamic object, these relocations | |
7895 | are copied into the output file to be resolved at run | |
7896 | time. */ | |
7897 | ||
b34976b6 AM |
7898 | skip = FALSE; |
7899 | relocate = FALSE; | |
65f38f15 | 7900 | |
c629eae0 JJ |
7901 | outrel.r_offset = |
7902 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
7903 | rel->r_offset); | |
7904 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 7905 | skip = TRUE; |
0bb2d96a | 7906 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 7907 | skip = TRUE, relocate = TRUE; |
65f38f15 AM |
7908 | outrel.r_offset += (input_section->output_section->vma |
7909 | + input_section->output_offset); | |
411e1bfb | 7910 | outrel.r_addend = rel->r_addend; |
65f38f15 AM |
7911 | |
7912 | if (skip) | |
0bb2d96a | 7913 | memset (&outrel, 0, sizeof outrel); |
65f38f15 | 7914 | else if (h != NULL |
586119b3 AM |
7915 | && !SYMBOL_REFERENCES_LOCAL (info, h) |
7916 | && !is_opd) | |
0bb2d96a | 7917 | outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); |
65f38f15 AM |
7918 | else |
7919 | { | |
41bd81ab AM |
7920 | /* This symbol is local, or marked to become local, |
7921 | or this is an opd section reloc which must point | |
7922 | at a local function. */ | |
65f38f15 | 7923 | outrel.r_addend += relocation; |
411e1bfb | 7924 | /* ??? why? */ |
b34976b6 | 7925 | relocate = TRUE; |
e86ce104 | 7926 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
65f38f15 | 7927 | { |
3fad3c7c | 7928 | if (is_opd && h != NULL) |
afbe61cf AM |
7929 | { |
7930 | /* Lie about opd entries. This case occurs | |
7931 | when building shared libraries and we | |
7932 | reference a function in another shared | |
3fad3c7c AM |
7933 | lib. The same thing happens for a weak |
7934 | definition in an application that's | |
7935 | overridden by a strong definition in a | |
7936 | shared lib. (I believe this is a generic | |
7937 | bug in binutils handling of weak syms.) | |
7938 | In these cases we won't use the opd | |
1e2f5b6e | 7939 | entry in this lib. */ |
b34976b6 | 7940 | unresolved_reloc = FALSE; |
afbe61cf | 7941 | } |
65f38f15 AM |
7942 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); |
7943 | } | |
7944 | else | |
7945 | { | |
7946 | long indx = 0; | |
7947 | ||
41bd81ab | 7948 | if (bfd_is_abs_section (sec)) |
65f38f15 AM |
7949 | ; |
7950 | else if (sec == NULL || sec->owner == NULL) | |
7951 | { | |
7952 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 7953 | return FALSE; |
65f38f15 AM |
7954 | } |
7955 | else | |
7956 | { | |
7957 | asection *osec; | |
7958 | ||
7959 | osec = sec->output_section; | |
7960 | indx = elf_section_data (osec)->dynindx; | |
7961 | ||
7962 | /* We are turning this relocation into one | |
7963 | against a section symbol, so subtract out | |
7964 | the output section's address but not the | |
7965 | offset of the input section in the output | |
7966 | section. */ | |
7967 | outrel.r_addend -= osec->vma; | |
7968 | } | |
7969 | ||
7970 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
7971 | } | |
7972 | } | |
7973 | ||
7974 | sreloc = elf_section_data (input_section)->sreloc; | |
7975 | if (sreloc == NULL) | |
7976 | abort (); | |
7977 | ||
947216bf AM |
7978 | loc = sreloc->contents; |
7979 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 AM |
7980 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
7981 | ||
7982 | /* If this reloc is against an external symbol, it will | |
7983 | be computed at runtime, so there's no need to do | |
7984 | anything now. */ | |
7985 | if (! relocate) | |
7986 | continue; | |
7987 | } | |
5bd4f169 AM |
7988 | break; |
7989 | ||
65f38f15 AM |
7990 | case R_PPC64_COPY: |
7991 | case R_PPC64_GLOB_DAT: | |
7992 | case R_PPC64_JMP_SLOT: | |
7993 | case R_PPC64_RELATIVE: | |
7994 | /* We shouldn't ever see these dynamic relocs in relocatable | |
7995 | files. */ | |
ae9a127f | 7996 | /* Fall through. */ |
65f38f15 AM |
7997 | |
7998 | case R_PPC64_PLTGOT16: | |
7999 | case R_PPC64_PLTGOT16_DS: | |
8000 | case R_PPC64_PLTGOT16_HA: | |
8001 | case R_PPC64_PLTGOT16_HI: | |
8002 | case R_PPC64_PLTGOT16_LO: | |
8003 | case R_PPC64_PLTGOT16_LO_DS: | |
8004 | case R_PPC64_PLTREL32: | |
8005 | case R_PPC64_PLTREL64: | |
8006 | /* These ones haven't been implemented yet. */ | |
8007 | ||
8008 | (*_bfd_error_handler) | |
7b609f53 | 8009 | (_("%s: relocation %s is not supported for symbol %s."), |
65f38f15 AM |
8010 | bfd_archive_filename (input_bfd), |
8011 | ppc64_elf_howto_table[(int) r_type]->name, sym_name); | |
5bd4f169 AM |
8012 | |
8013 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8014 | ret = FALSE; |
5bd4f169 | 8015 | continue; |
65f38f15 | 8016 | } |
5bd4f169 | 8017 | |
65f38f15 AM |
8018 | /* Do any further special processing. */ |
8019 | switch (r_type) | |
8020 | { | |
8021 | default: | |
8022 | break; | |
8023 | ||
8024 | case R_PPC64_ADDR16_HA: | |
8025 | case R_PPC64_ADDR16_HIGHERA: | |
8026 | case R_PPC64_ADDR16_HIGHESTA: | |
86bbe32f AM |
8027 | case R_PPC64_GOT16_HA: |
8028 | case R_PPC64_PLTGOT16_HA: | |
65f38f15 AM |
8029 | case R_PPC64_PLT16_HA: |
8030 | case R_PPC64_TOC16_HA: | |
8031 | case R_PPC64_SECTOFF_HA: | |
411e1bfb AM |
8032 | case R_PPC64_TPREL16_HA: |
8033 | case R_PPC64_DTPREL16_HA: | |
8034 | case R_PPC64_GOT_TLSGD16_HA: | |
8035 | case R_PPC64_GOT_TLSLD16_HA: | |
8036 | case R_PPC64_GOT_TPREL16_HA: | |
8037 | case R_PPC64_GOT_DTPREL16_HA: | |
8038 | case R_PPC64_TPREL16_HIGHER: | |
8039 | case R_PPC64_TPREL16_HIGHERA: | |
8040 | case R_PPC64_TPREL16_HIGHEST: | |
8041 | case R_PPC64_TPREL16_HIGHESTA: | |
8042 | case R_PPC64_DTPREL16_HIGHER: | |
8043 | case R_PPC64_DTPREL16_HIGHERA: | |
8044 | case R_PPC64_DTPREL16_HIGHEST: | |
8045 | case R_PPC64_DTPREL16_HIGHESTA: | |
65f38f15 AM |
8046 | /* It's just possible that this symbol is a weak symbol |
8047 | that's not actually defined anywhere. In that case, | |
8048 | 'sec' would be NULL, and we should leave the symbol | |
8049 | alone (it will be set to zero elsewhere in the link). */ | |
8050 | if (sec != NULL) | |
e515b051 AM |
8051 | /* Add 0x10000 if sign bit in 0:15 is set. |
8052 | Bits 0:15 are not used. */ | |
8053 | addend += 0x8000; | |
65f38f15 AM |
8054 | break; |
8055 | ||
8056 | case R_PPC64_ADDR16_DS: | |
8057 | case R_PPC64_ADDR16_LO_DS: | |
8058 | case R_PPC64_GOT16_DS: | |
8059 | case R_PPC64_GOT16_LO_DS: | |
8060 | case R_PPC64_PLT16_LO_DS: | |
8061 | case R_PPC64_SECTOFF_DS: | |
8062 | case R_PPC64_SECTOFF_LO_DS: | |
8063 | case R_PPC64_TOC16_DS: | |
8064 | case R_PPC64_TOC16_LO_DS: | |
8065 | case R_PPC64_PLTGOT16_DS: | |
8066 | case R_PPC64_PLTGOT16_LO_DS: | |
411e1bfb AM |
8067 | case R_PPC64_GOT_TPREL16_DS: |
8068 | case R_PPC64_GOT_TPREL16_LO_DS: | |
8069 | case R_PPC64_GOT_DTPREL16_DS: | |
8070 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
8071 | case R_PPC64_TPREL16_DS: | |
8072 | case R_PPC64_TPREL16_LO_DS: | |
8073 | case R_PPC64_DTPREL16_DS: | |
8074 | case R_PPC64_DTPREL16_LO_DS: | |
65f38f15 AM |
8075 | if (((relocation + addend) & 3) != 0) |
8076 | { | |
8077 | (*_bfd_error_handler) | |
8078 | (_("%s: error: relocation %s not a multiple of 4"), | |
8079 | bfd_archive_filename (input_bfd), | |
8080 | ppc64_elf_howto_table[(int) r_type]->name); | |
8081 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8082 | ret = FALSE; |
65f38f15 AM |
8083 | continue; |
8084 | } | |
8085 | break; | |
721956f4 AM |
8086 | |
8087 | case R_PPC64_REL14: | |
8088 | case R_PPC64_REL14_BRNTAKEN: | |
8089 | case R_PPC64_REL14_BRTAKEN: | |
8090 | max_br_offset = 1 << 15; | |
8091 | goto branch_check; | |
8092 | ||
8093 | case R_PPC64_REL24: | |
8094 | max_br_offset = 1 << 25; | |
8095 | ||
8096 | branch_check: | |
8097 | /* If the branch is out of reach, then redirect the | |
8098 | call to the local stub for this function. */ | |
411e1bfb | 8099 | from = (rel->r_offset |
721956f4 AM |
8100 | + input_section->output_offset |
8101 | + input_section->output_section->vma); | |
8102 | if (relocation + addend - from + max_br_offset >= 2 * max_br_offset | |
8103 | && (stub_entry = ppc_get_stub_entry (input_section, sec, h, | |
8104 | rel, htab)) != NULL) | |
8105 | { | |
8106 | /* Munge up the value and addend so that we call the stub | |
8107 | rather than the procedure directly. */ | |
8108 | relocation = (stub_entry->stub_offset | |
8109 | + stub_entry->stub_sec->output_offset | |
8110 | + stub_entry->stub_sec->output_section->vma); | |
8111 | addend = 0; | |
8112 | } | |
8113 | break; | |
5bd4f169 AM |
8114 | } |
8115 | ||
239e1f3a AM |
8116 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
8117 | because such sections are not SEC_ALLOC and thus ld.so will | |
8118 | not process them. */ | |
65f38f15 | 8119 | if (unresolved_reloc |
239e1f3a | 8120 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
65f38f15 | 8121 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) |
9c07fe7c AM |
8122 | { |
8123 | (*_bfd_error_handler) | |
7b609f53 | 8124 | (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), |
9c07fe7c AM |
8125 | bfd_archive_filename (input_bfd), |
8126 | bfd_get_section_name (input_bfd, input_section), | |
8127 | (long) rel->r_offset, | |
7b609f53 | 8128 | ppc64_elf_howto_table[(int) r_type]->name, |
9c07fe7c | 8129 | h->root.root.string); |
b34976b6 | 8130 | ret = FALSE; |
9c07fe7c | 8131 | } |
5bd4f169 | 8132 | |
65f38f15 | 8133 | r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type], |
5bd4f169 AM |
8134 | input_bfd, |
8135 | input_section, | |
8136 | contents, | |
411e1bfb | 8137 | rel->r_offset, |
5bd4f169 AM |
8138 | relocation, |
8139 | addend); | |
8140 | ||
ef60b7ff | 8141 | if (r != bfd_reloc_ok) |
5bd4f169 | 8142 | { |
cd27b276 AM |
8143 | if (sym_name == NULL) |
8144 | sym_name = "(null)"; | |
8145 | if (r == bfd_reloc_overflow) | |
5bd4f169 | 8146 | { |
cd27b276 AM |
8147 | if (warned) |
8148 | continue; | |
8149 | if (h != NULL | |
8150 | && h->root.type == bfd_link_hash_undefweak | |
65f38f15 | 8151 | && ppc64_elf_howto_table[(int) r_type]->pc_relative) |
5bd4f169 AM |
8152 | { |
8153 | /* Assume this is a call protected by other code that | |
8154 | detects the symbol is undefined. If this is the case, | |
8155 | we can safely ignore the overflow. If not, the | |
8156 | program is hosed anyway, and a little warning isn't | |
8157 | going to help. */ | |
8158 | ||
8159 | continue; | |
8160 | } | |
8161 | ||
ef60b7ff | 8162 | if (!((*info->callbacks->reloc_overflow) |
cd27b276 | 8163 | (info, sym_name, ppc64_elf_howto_table[(int) r_type]->name, |
411e1bfb | 8164 | rel->r_addend, input_bfd, input_section, rel->r_offset))) |
b34976b6 | 8165 | return FALSE; |
ef60b7ff AM |
8166 | } |
8167 | else | |
8168 | { | |
8169 | (*_bfd_error_handler) | |
7b609f53 | 8170 | (_("%s(%s+0x%lx): %s reloc against `%s': error %d"), |
ef60b7ff AM |
8171 | bfd_archive_filename (input_bfd), |
8172 | bfd_get_section_name (input_bfd, input_section), | |
7b609f53 AM |
8173 | (long) rel->r_offset, |
8174 | ppc64_elf_howto_table[(int) r_type]->name, | |
8175 | sym_name, | |
8176 | (int) r); | |
b34976b6 | 8177 | ret = FALSE; |
ef60b7ff | 8178 | } |
5bd4f169 | 8179 | } |
5bd4f169 AM |
8180 | } |
8181 | ||
5bd4f169 AM |
8182 | return ret; |
8183 | } | |
8184 | ||
8185 | /* Finish up dynamic symbol handling. We set the contents of various | |
8186 | dynamic sections here. */ | |
8187 | ||
b34976b6 | 8188 | static bfd_boolean |
5bd4f169 AM |
8189 | ppc64_elf_finish_dynamic_symbol (output_bfd, info, h, sym) |
8190 | bfd *output_bfd; | |
8191 | struct bfd_link_info *info; | |
8192 | struct elf_link_hash_entry *h; | |
8193 | Elf_Internal_Sym *sym; | |
8194 | { | |
65f38f15 | 8195 | struct ppc_link_hash_table *htab; |
5bd4f169 AM |
8196 | bfd *dynobj; |
8197 | ||
65f38f15 AM |
8198 | htab = ppc_hash_table (info); |
8199 | dynobj = htab->elf.dynobj; | |
5bd4f169 | 8200 | |
411e1bfb | 8201 | if (((struct ppc_link_hash_entry *) h)->is_func_descriptor) |
5bd4f169 | 8202 | { |
411e1bfb | 8203 | struct plt_entry *ent; |
65f38f15 | 8204 | Elf_Internal_Rela rela; |
947216bf | 8205 | bfd_byte *loc; |
5bd4f169 | 8206 | |
411e1bfb AM |
8207 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
8208 | if (ent->plt.offset != (bfd_vma) -1) | |
8209 | { | |
8210 | /* This symbol has an entry in the procedure linkage | |
8211 | table. Set it up. */ | |
5bd4f169 | 8212 | |
411e1bfb AM |
8213 | if (htab->splt == NULL |
8214 | || htab->srelplt == NULL | |
8215 | || htab->sglink == NULL) | |
8216 | abort (); | |
5bd4f169 | 8217 | |
411e1bfb AM |
8218 | /* Create a JMP_SLOT reloc to inform the dynamic linker to |
8219 | fill in the PLT entry. */ | |
411e1bfb AM |
8220 | rela.r_offset = (htab->splt->output_section->vma |
8221 | + htab->splt->output_offset | |
8222 | + ent->plt.offset); | |
8223 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
8224 | rela.r_addend = ent->addend; | |
5bd4f169 | 8225 | |
411e1bfb AM |
8226 | loc = htab->srelplt->contents; |
8227 | loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE | |
8228 | * sizeof (Elf64_External_Rela)); | |
8229 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); | |
8230 | } | |
5bd4f169 AM |
8231 | } |
8232 | ||
8233 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
8234 | { | |
5bd4f169 | 8235 | Elf_Internal_Rela rela; |
947216bf | 8236 | bfd_byte *loc; |
5bd4f169 | 8237 | |
65f38f15 | 8238 | /* This symbol needs a copy reloc. Set it up. */ |
5bd4f169 | 8239 | |
65f38f15 AM |
8240 | if (h->dynindx == -1 |
8241 | || (h->root.type != bfd_link_hash_defined | |
8242 | && h->root.type != bfd_link_hash_defweak) | |
8243 | || htab->srelbss == NULL) | |
8244 | abort (); | |
5bd4f169 AM |
8245 | |
8246 | rela.r_offset = (h->root.u.def.value | |
8247 | + h->root.u.def.section->output_section->vma | |
8248 | + h->root.u.def.section->output_offset); | |
8249 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
8250 | rela.r_addend = 0; | |
947216bf AM |
8251 | loc = htab->srelbss->contents; |
8252 | loc += htab->srelbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
65f38f15 | 8253 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
5bd4f169 AM |
8254 | } |
8255 | ||
5bd4f169 AM |
8256 | /* Mark some specially defined symbols as absolute. */ |
8257 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0) | |
8258 | sym->st_shndx = SHN_ABS; | |
8259 | ||
b34976b6 | 8260 | return TRUE; |
5bd4f169 AM |
8261 | } |
8262 | ||
65f38f15 AM |
8263 | /* Used to decide how to sort relocs in an optimal manner for the |
8264 | dynamic linker, before writing them out. */ | |
8265 | ||
8266 | static enum elf_reloc_type_class | |
8267 | ppc64_elf_reloc_type_class (rela) | |
8268 | const Elf_Internal_Rela *rela; | |
8269 | { | |
04c9666a | 8270 | enum elf_ppc64_reloc_type r_type; |
a33d1f77 | 8271 | |
04c9666a | 8272 | r_type = (enum elf_ppc64_reloc_type) ELF64_R_TYPE (rela->r_info); |
a33d1f77 | 8273 | switch (r_type) |
65f38f15 AM |
8274 | { |
8275 | case R_PPC64_RELATIVE: | |
8276 | return reloc_class_relative; | |
8277 | case R_PPC64_JMP_SLOT: | |
8278 | return reloc_class_plt; | |
8279 | case R_PPC64_COPY: | |
8280 | return reloc_class_copy; | |
8281 | default: | |
8282 | return reloc_class_normal; | |
8283 | } | |
8284 | } | |
8285 | ||
5bd4f169 AM |
8286 | /* Finish up the dynamic sections. */ |
8287 | ||
b34976b6 | 8288 | static bfd_boolean |
5bd4f169 AM |
8289 | ppc64_elf_finish_dynamic_sections (output_bfd, info) |
8290 | bfd *output_bfd; | |
8291 | struct bfd_link_info *info; | |
8292 | { | |
65f38f15 AM |
8293 | struct ppc_link_hash_table *htab; |
8294 | bfd *dynobj; | |
5bd4f169 | 8295 | asection *sdyn; |
5bd4f169 | 8296 | |
65f38f15 AM |
8297 | htab = ppc_hash_table (info); |
8298 | dynobj = htab->elf.dynobj; | |
5bd4f169 AM |
8299 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
8300 | ||
65f38f15 | 8301 | if (htab->elf.dynamic_sections_created) |
5bd4f169 | 8302 | { |
5bd4f169 AM |
8303 | Elf64_External_Dyn *dyncon, *dynconend; |
8304 | ||
65f38f15 AM |
8305 | if (sdyn == NULL || htab->sgot == NULL) |
8306 | abort (); | |
5bd4f169 AM |
8307 | |
8308 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
8309 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
8310 | for (; dyncon < dynconend; dyncon++) | |
8311 | { | |
8312 | Elf_Internal_Dyn dyn; | |
19397422 | 8313 | asection *s; |
5bd4f169 AM |
8314 | |
8315 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
8316 | ||
8317 | switch (dyn.d_tag) | |
8318 | { | |
65f38f15 AM |
8319 | default: |
8320 | continue; | |
5bd4f169 | 8321 | |
5d1634d7 | 8322 | case DT_PPC64_GLINK: |
6348e046 AM |
8323 | s = htab->sglink; |
8324 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
5d1634d7 AM |
8325 | break; |
8326 | ||
19397422 AM |
8327 | case DT_PPC64_OPD: |
8328 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8329 | if (s == NULL) |
8330 | continue; | |
8331 | dyn.d_un.d_ptr = s->vma; | |
19397422 AM |
8332 | break; |
8333 | ||
8334 | case DT_PPC64_OPDSZ: | |
8335 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
6348e046 AM |
8336 | if (s == NULL) |
8337 | continue; | |
8338 | dyn.d_un.d_val = s->_raw_size; | |
19397422 AM |
8339 | break; |
8340 | ||
65f38f15 | 8341 | case DT_PLTGOT: |
6348e046 AM |
8342 | s = htab->splt; |
8343 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
65f38f15 AM |
8344 | break; |
8345 | ||
8346 | case DT_JMPREL: | |
6348e046 AM |
8347 | s = htab->srelplt; |
8348 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
65f38f15 | 8349 | break; |
5bd4f169 | 8350 | |
65f38f15 | 8351 | case DT_PLTRELSZ: |
5d1634d7 AM |
8352 | dyn.d_un.d_val = htab->srelplt->_raw_size; |
8353 | break; | |
8354 | ||
8355 | case DT_RELASZ: | |
8356 | /* Don't count procedure linkage table relocs in the | |
8357 | overall reloc count. */ | |
6348e046 AM |
8358 | s = htab->srelplt; |
8359 | if (s == NULL) | |
8360 | continue; | |
8361 | dyn.d_un.d_val -= s->_raw_size; | |
8362 | break; | |
8363 | ||
8364 | case DT_RELA: | |
8365 | /* We may not be using the standard ELF linker script. | |
8366 | If .rela.plt is the first .rela section, we adjust | |
8367 | DT_RELA to not include it. */ | |
8368 | s = htab->srelplt; | |
8369 | if (s == NULL) | |
8370 | continue; | |
8371 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
8372 | continue; | |
8373 | dyn.d_un.d_ptr += s->_raw_size; | |
65f38f15 | 8374 | break; |
5bd4f169 | 8375 | } |
5bd4f169 | 8376 | |
65f38f15 | 8377 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
5bd4f169 | 8378 | } |
5bd4f169 AM |
8379 | } |
8380 | ||
5d1634d7 AM |
8381 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
8382 | { | |
8383 | /* Fill in the first entry in the global offset table. | |
8384 | We use it to hold the link-time TOCbase. */ | |
8385 | bfd_put_64 (output_bfd, | |
60ee0d4a | 8386 | elf_gp (output_bfd) + TOC_BASE_OFF, |
5d1634d7 AM |
8387 | htab->sgot->contents); |
8388 | ||
8389 | /* Set .got entry size. */ | |
8390 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 8; | |
8391 | } | |
8392 | ||
8393 | if (htab->splt != NULL && htab->splt->_raw_size != 0) | |
8394 | { | |
8395 | /* Set .plt entry size. */ | |
8396 | elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize | |
8397 | = PLT_ENTRY_SIZE; | |
8398 | } | |
8399 | ||
b34976b6 | 8400 | return TRUE; |
5bd4f169 AM |
8401 | } |
8402 | ||
8403 | #define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec | |
8404 | #define TARGET_LITTLE_NAME "elf64-powerpcle" | |
8405 | #define TARGET_BIG_SYM bfd_elf64_powerpc_vec | |
8406 | #define TARGET_BIG_NAME "elf64-powerpc" | |
8407 | #define ELF_ARCH bfd_arch_powerpc | |
8408 | #define ELF_MACHINE_CODE EM_PPC64 | |
8409 | #define ELF_MAXPAGESIZE 0x10000 | |
8410 | #define elf_info_to_howto ppc64_elf_info_to_howto | |
8411 | ||
8412 | #ifdef EM_CYGNUS_POWERPC | |
8413 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
8414 | #endif | |
8415 | ||
8416 | #ifdef EM_PPC_OLD | |
8417 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
8418 | #endif | |
8419 | ||
8420 | #define elf_backend_want_got_sym 0 | |
8421 | #define elf_backend_want_plt_sym 0 | |
8422 | #define elf_backend_plt_alignment 3 | |
8423 | #define elf_backend_plt_not_loaded 1 | |
8424 | #define elf_backend_got_symbol_offset 0 | |
5d1634d7 AM |
8425 | #define elf_backend_got_header_size 8 |
8426 | #define elf_backend_plt_header_size PLT_INITIAL_ENTRY_SIZE | |
5bd4f169 | 8427 | #define elf_backend_can_gc_sections 1 |
65f38f15 | 8428 | #define elf_backend_can_refcount 1 |
b491616a | 8429 | #define elf_backend_rela_normal 1 |
5bd4f169 | 8430 | |
65f38f15 | 8431 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
65f38f15 | 8432 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
f0abc2a1 | 8433 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
65f38f15 | 8434 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create |
721956f4 | 8435 | #define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free |
65f38f15 | 8436 | |
feee612b | 8437 | #define elf_backend_object_p ppc64_elf_object_p |
65f38f15 AM |
8438 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
8439 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
8440 | #define elf_backend_check_relocs ppc64_elf_check_relocs | |
8441 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook | |
8442 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
8443 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
e86ce104 AM |
8444 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol |
8445 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust | |
65f38f15 | 8446 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections |
65f38f15 AM |
8447 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
8448 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
8449 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
8450 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
5bd4f169 AM |
8451 | |
8452 | #include "elf64-target.h" |