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252b5132 | 1 | /* PowerPC-specific support for 32-bit ELF |
6f2750fe | 2 | Copyright (C) 1994-2016 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Ian Lance Taylor, Cygnus Support. |
4 | ||
ae9a127f | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
ae9a127f NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 10 | (at your option) any later version. |
252b5132 | 11 | |
ae9a127f NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
ae9a127f | 17 | You should have received a copy of the GNU General Public License |
fc0bffd6 | 18 | along with this program; if not, write to the |
3e110533 | 19 | Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
53e09e0a | 20 | Boston, MA 02110-1301, USA. */ |
252b5132 | 21 | |
cd123cb7 | 22 | |
252b5132 RH |
23 | /* This file is based on a preliminary PowerPC ELF ABI. The |
24 | information may not match the final PowerPC ELF ABI. It includes | |
25 | suggestions from the in-progress Embedded PowerPC ABI, and that | |
26 | information may also not match. */ | |
27 | ||
3db64b00 | 28 | #include "sysdep.h" |
183e98be | 29 | #include <stdarg.h> |
252b5132 | 30 | #include "bfd.h" |
252b5132 RH |
31 | #include "bfdlink.h" |
32 | #include "libbfd.h" | |
33 | #include "elf-bfd.h" | |
34 | #include "elf/ppc.h" | |
7619e7c7 | 35 | #include "elf32-ppc.h" |
9d8504b1 | 36 | #include "elf-vxworks.h" |
6177242a | 37 | #include "dwarf2.h" |
252b5132 | 38 | |
b9c361e0 JL |
39 | typedef enum split16_format_type |
40 | { | |
41 | split16a_type = 0, | |
42 | split16d_type | |
43 | } | |
44 | split16_format_type; | |
45 | ||
f0fe0e16 | 46 | /* RELA relocations are used here. */ |
252b5132 | 47 | |
252b5132 | 48 | static bfd_reloc_status_type ppc_elf_addr16_ha_reloc |
55fd94b0 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
7619e7c7 | 50 | static bfd_reloc_status_type ppc_elf_unhandled_reloc |
55fd94b0 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 52 | |
70bccea4 AM |
53 | /* Branch prediction bit for branch taken relocs. */ |
54 | #define BRANCH_PREDICT_BIT 0x200000 | |
55 | /* Mask to set RA in memory instructions. */ | |
56 | #define RA_REGISTER_MASK 0x001f0000 | |
57 | /* Value to shift register by to insert RA. */ | |
58 | #define RA_REGISTER_SHIFT 16 | |
252b5132 RH |
59 | |
60 | /* The name of the dynamic interpreter. This is put in the .interp | |
61 | section. */ | |
252b5132 RH |
62 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
63 | ||
d7128ce4 | 64 | /* For old-style PLT. */ |
252b5132 RH |
65 | /* The number of single-slot PLT entries (the rest use two slots). */ |
66 | #define PLT_NUM_SINGLE_ENTRIES 8192 | |
67 | ||
d7128ce4 | 68 | /* For new-style .glink and .plt. */ |
a6aa5195 | 69 | #define GLINK_PLTRESOLVE 16*4 |
d7128ce4 | 70 | #define GLINK_ENTRY_SIZE 4*4 |
a7f2871e | 71 | #define TLS_GET_ADDR_GLINK_SIZE 12*4 |
d7128ce4 | 72 | |
9d8504b1 PB |
73 | /* VxWorks uses its own plt layout, filled in by the static linker. */ |
74 | ||
75 | /* The standard VxWorks PLT entry. */ | |
76 | #define VXWORKS_PLT_ENTRY_SIZE 32 | |
77 | static const bfd_vma ppc_elf_vxworks_plt_entry | |
78 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
79 | { | |
80 | 0x3d800000, /* lis r12,0 */ | |
81 | 0x818c0000, /* lwz r12,0(r12) */ | |
82 | 0x7d8903a6, /* mtctr r12 */ | |
83 | 0x4e800420, /* bctr */ | |
84 | 0x39600000, /* li r11,0 */ | |
85 | 0x48000000, /* b 14 <.PLT0resolve+0x4> */ | |
86 | 0x60000000, /* nop */ | |
87 | 0x60000000, /* nop */ | |
88 | }; | |
89 | static const bfd_vma ppc_elf_vxworks_pic_plt_entry | |
90 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
91 | { | |
92 | 0x3d9e0000, /* addis r12,r30,0 */ | |
93 | 0x818c0000, /* lwz r12,0(r12) */ | |
94 | 0x7d8903a6, /* mtctr r12 */ | |
95 | 0x4e800420, /* bctr */ | |
96 | 0x39600000, /* li r11,0 */ | |
97 | 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */ | |
98 | 0x60000000, /* nop */ | |
99 | 0x60000000, /* nop */ | |
100 | }; | |
101 | ||
102 | /* The initial VxWorks PLT entry. */ | |
103 | #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32 | |
104 | static const bfd_vma ppc_elf_vxworks_plt0_entry | |
105 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
106 | { | |
107 | 0x3d800000, /* lis r12,0 */ | |
108 | 0x398c0000, /* addi r12,r12,0 */ | |
109 | 0x800c0008, /* lwz r0,8(r12) */ | |
110 | 0x7c0903a6, /* mtctr r0 */ | |
111 | 0x818c0004, /* lwz r12,4(r12) */ | |
112 | 0x4e800420, /* bctr */ | |
113 | 0x60000000, /* nop */ | |
114 | 0x60000000, /* nop */ | |
115 | }; | |
116 | static const bfd_vma ppc_elf_vxworks_pic_plt0_entry | |
117 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
118 | { | |
119 | 0x819e0008, /* lwz r12,8(r30) */ | |
120 | 0x7d8903a6, /* mtctr r12 */ | |
121 | 0x819e0004, /* lwz r12,4(r30) */ | |
122 | 0x4e800420, /* bctr */ | |
123 | 0x60000000, /* nop */ | |
124 | 0x60000000, /* nop */ | |
125 | 0x60000000, /* nop */ | |
126 | 0x60000000, /* nop */ | |
127 | }; | |
128 | ||
129 | /* For executables, we have some additional relocations in | |
130 | .rela.plt.unloaded, for the kernel loader. */ | |
131 | ||
132 | /* The number of non-JMP_SLOT relocations per PLT0 slot. */ | |
133 | #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3 | |
134 | /* The number of relocations in the PLTResolve slot. */ | |
135 | #define VXWORKS_PLTRESOLVE_RELOCS 2 | |
136 | /* The number of relocations in the PLTResolve slot when when creating | |
137 | a shared library. */ | |
138 | #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0 | |
139 | ||
d7128ce4 | 140 | /* Some instructions. */ |
d7128ce4 | 141 | #define ADDIS_11_11 0x3d6b0000 |
a6aa5195 AM |
142 | #define ADDIS_11_30 0x3d7e0000 |
143 | #define ADDIS_12_12 0x3d8c0000 | |
d7128ce4 | 144 | #define ADDI_11_11 0x396b0000 |
d7128ce4 | 145 | #define ADD_0_11_11 0x7c0b5a14 |
a7f2871e | 146 | #define ADD_3_12_2 0x7c6c1214 |
d7128ce4 | 147 | #define ADD_11_0_11 0x7d605a14 |
a6aa5195 | 148 | #define B 0x48000000 |
da3a2088 | 149 | #define BA 0x48000002 |
a6aa5195 | 150 | #define BCL_20_31 0x429f0005 |
d7128ce4 | 151 | #define BCTR 0x4e800420 |
a7f2871e AM |
152 | #define BEQLR 0x4d820020 |
153 | #define CMPWI_11_0 0x2c0b0000 | |
7e8aeb9a AM |
154 | #define LIS_11 0x3d600000 |
155 | #define LIS_12 0x3d800000 | |
a6aa5195 AM |
156 | #define LWZU_0_12 0x840c0000 |
157 | #define LWZ_0_12 0x800c0000 | |
a7f2871e | 158 | #define LWZ_11_3 0x81630000 |
a6aa5195 AM |
159 | #define LWZ_11_11 0x816b0000 |
160 | #define LWZ_11_30 0x817e0000 | |
a7f2871e | 161 | #define LWZ_12_3 0x81830000 |
a6aa5195 | 162 | #define LWZ_12_12 0x818c0000 |
a7f2871e AM |
163 | #define MR_0_3 0x7c601b78 |
164 | #define MR_3_0 0x7c030378 | |
a6aa5195 AM |
165 | #define MFLR_0 0x7c0802a6 |
166 | #define MFLR_12 0x7d8802a6 | |
167 | #define MTCTR_0 0x7c0903a6 | |
168 | #define MTCTR_11 0x7d6903a6 | |
169 | #define MTLR_0 0x7c0803a6 | |
170 | #define NOP 0x60000000 | |
171 | #define SUB_11_11_12 0x7d6c5850 | |
7619e7c7 AM |
172 | |
173 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
174 | #define TP_OFFSET 0x7000 | |
175 | #define DTP_OFFSET 0x8000 | |
e87d4038 AM |
176 | |
177 | /* The value of a defined global symbol. */ | |
178 | #define SYM_VAL(SYM) \ | |
179 | ((SYM)->root.u.def.section->output_section->vma \ | |
180 | + (SYM)->root.u.def.section->output_offset \ | |
181 | + (SYM)->root.u.def.value) | |
7fce784e | 182 | \f |
e47cd125 | 183 | static reloc_howto_type *ppc_elf_howto_table[R_PPC_max]; |
252b5132 | 184 | |
8da6118f | 185 | static reloc_howto_type ppc_elf_howto_raw[] = { |
252b5132 RH |
186 | /* This reloc does nothing. */ |
187 | HOWTO (R_PPC_NONE, /* type */ | |
188 | 0, /* rightshift */ | |
6346d5ca AM |
189 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
190 | 0, /* bitsize */ | |
b34976b6 | 191 | FALSE, /* pc_relative */ |
252b5132 | 192 | 0, /* bitpos */ |
86c95733 | 193 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
194 | bfd_elf_generic_reloc, /* special_function */ |
195 | "R_PPC_NONE", /* name */ | |
b34976b6 | 196 | FALSE, /* partial_inplace */ |
252b5132 RH |
197 | 0, /* src_mask */ |
198 | 0, /* dst_mask */ | |
b34976b6 | 199 | FALSE), /* pcrel_offset */ |
252b5132 RH |
200 | |
201 | /* A standard 32 bit relocation. */ | |
202 | HOWTO (R_PPC_ADDR32, /* type */ | |
203 | 0, /* rightshift */ | |
204 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
205 | 32, /* bitsize */ | |
b34976b6 | 206 | FALSE, /* pc_relative */ |
252b5132 | 207 | 0, /* bitpos */ |
86c95733 | 208 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
209 | bfd_elf_generic_reloc, /* special_function */ |
210 | "R_PPC_ADDR32", /* name */ | |
b34976b6 | 211 | FALSE, /* partial_inplace */ |
252b5132 RH |
212 | 0, /* src_mask */ |
213 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 214 | FALSE), /* pcrel_offset */ |
252b5132 RH |
215 | |
216 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
217 | FIXME: we don't check that, we just clear them. */ | |
218 | HOWTO (R_PPC_ADDR24, /* type */ | |
219 | 0, /* rightshift */ | |
220 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
221 | 26, /* bitsize */ | |
b34976b6 | 222 | FALSE, /* pc_relative */ |
252b5132 | 223 | 0, /* bitpos */ |
86c95733 | 224 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
225 | bfd_elf_generic_reloc, /* special_function */ |
226 | "R_PPC_ADDR24", /* name */ | |
b34976b6 | 227 | FALSE, /* partial_inplace */ |
252b5132 RH |
228 | 0, /* src_mask */ |
229 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 230 | FALSE), /* pcrel_offset */ |
252b5132 RH |
231 | |
232 | /* A standard 16 bit relocation. */ | |
233 | HOWTO (R_PPC_ADDR16, /* type */ | |
234 | 0, /* rightshift */ | |
235 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
236 | 16, /* bitsize */ | |
b34976b6 | 237 | FALSE, /* pc_relative */ |
252b5132 RH |
238 | 0, /* bitpos */ |
239 | complain_overflow_bitfield, /* complain_on_overflow */ | |
240 | bfd_elf_generic_reloc, /* special_function */ | |
241 | "R_PPC_ADDR16", /* name */ | |
b34976b6 | 242 | FALSE, /* partial_inplace */ |
252b5132 RH |
243 | 0, /* src_mask */ |
244 | 0xffff, /* dst_mask */ | |
b34976b6 | 245 | FALSE), /* pcrel_offset */ |
252b5132 RH |
246 | |
247 | /* A 16 bit relocation without overflow. */ | |
248 | HOWTO (R_PPC_ADDR16_LO, /* type */ | |
249 | 0, /* rightshift */ | |
250 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
251 | 16, /* bitsize */ | |
b34976b6 | 252 | FALSE, /* pc_relative */ |
252b5132 RH |
253 | 0, /* bitpos */ |
254 | complain_overflow_dont,/* complain_on_overflow */ | |
255 | bfd_elf_generic_reloc, /* special_function */ | |
256 | "R_PPC_ADDR16_LO", /* name */ | |
b34976b6 | 257 | FALSE, /* partial_inplace */ |
252b5132 RH |
258 | 0, /* src_mask */ |
259 | 0xffff, /* dst_mask */ | |
b34976b6 | 260 | FALSE), /* pcrel_offset */ |
252b5132 RH |
261 | |
262 | /* The high order 16 bits of an address. */ | |
263 | HOWTO (R_PPC_ADDR16_HI, /* type */ | |
264 | 16, /* rightshift */ | |
265 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
266 | 16, /* bitsize */ | |
b34976b6 | 267 | FALSE, /* pc_relative */ |
252b5132 RH |
268 | 0, /* bitpos */ |
269 | complain_overflow_dont, /* complain_on_overflow */ | |
270 | bfd_elf_generic_reloc, /* special_function */ | |
271 | "R_PPC_ADDR16_HI", /* name */ | |
b34976b6 | 272 | FALSE, /* partial_inplace */ |
252b5132 RH |
273 | 0, /* src_mask */ |
274 | 0xffff, /* dst_mask */ | |
b34976b6 | 275 | FALSE), /* pcrel_offset */ |
252b5132 RH |
276 | |
277 | /* The high order 16 bits of an address, plus 1 if the contents of | |
8da6118f | 278 | the low 16 bits, treated as a signed number, is negative. */ |
252b5132 RH |
279 | HOWTO (R_PPC_ADDR16_HA, /* type */ |
280 | 16, /* rightshift */ | |
281 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
282 | 16, /* bitsize */ | |
b34976b6 | 283 | FALSE, /* pc_relative */ |
252b5132 RH |
284 | 0, /* bitpos */ |
285 | complain_overflow_dont, /* complain_on_overflow */ | |
286 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
287 | "R_PPC_ADDR16_HA", /* name */ | |
b34976b6 | 288 | FALSE, /* partial_inplace */ |
252b5132 RH |
289 | 0, /* src_mask */ |
290 | 0xffff, /* dst_mask */ | |
b34976b6 | 291 | FALSE), /* pcrel_offset */ |
252b5132 RH |
292 | |
293 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
294 | FIXME: we don't check that, we just clear them. */ | |
295 | HOWTO (R_PPC_ADDR14, /* type */ | |
296 | 0, /* rightshift */ | |
297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
298 | 16, /* bitsize */ | |
b34976b6 | 299 | FALSE, /* pc_relative */ |
252b5132 | 300 | 0, /* bitpos */ |
86c95733 | 301 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
302 | bfd_elf_generic_reloc, /* special_function */ |
303 | "R_PPC_ADDR14", /* name */ | |
b34976b6 | 304 | FALSE, /* partial_inplace */ |
252b5132 RH |
305 | 0, /* src_mask */ |
306 | 0xfffc, /* dst_mask */ | |
b34976b6 | 307 | FALSE), /* pcrel_offset */ |
252b5132 RH |
308 | |
309 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
310 | indicate that the branch is expected to be taken. The lower two | |
8da6118f | 311 | bits must be zero. */ |
252b5132 RH |
312 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
313 | 0, /* rightshift */ | |
314 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
315 | 16, /* bitsize */ | |
b34976b6 | 316 | FALSE, /* pc_relative */ |
252b5132 | 317 | 0, /* bitpos */ |
86c95733 | 318 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
319 | bfd_elf_generic_reloc, /* special_function */ |
320 | "R_PPC_ADDR14_BRTAKEN",/* name */ | |
b34976b6 | 321 | FALSE, /* partial_inplace */ |
252b5132 RH |
322 | 0, /* src_mask */ |
323 | 0xfffc, /* dst_mask */ | |
b34976b6 | 324 | FALSE), /* pcrel_offset */ |
252b5132 RH |
325 | |
326 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
327 | indicate that the branch is not expected to be taken. The lower | |
328 | two bits must be zero. */ | |
329 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ | |
330 | 0, /* rightshift */ | |
331 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
332 | 16, /* bitsize */ | |
b34976b6 | 333 | FALSE, /* pc_relative */ |
252b5132 | 334 | 0, /* bitpos */ |
86c95733 | 335 | complain_overflow_signed, /* complain_on_overflow */ |
252b5132 RH |
336 | bfd_elf_generic_reloc, /* special_function */ |
337 | "R_PPC_ADDR14_BRNTAKEN",/* name */ | |
b34976b6 | 338 | FALSE, /* partial_inplace */ |
252b5132 RH |
339 | 0, /* src_mask */ |
340 | 0xfffc, /* dst_mask */ | |
b34976b6 | 341 | FALSE), /* pcrel_offset */ |
252b5132 | 342 | |
8da6118f | 343 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
344 | HOWTO (R_PPC_REL24, /* type */ |
345 | 0, /* rightshift */ | |
346 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
347 | 26, /* bitsize */ | |
b34976b6 | 348 | TRUE, /* pc_relative */ |
252b5132 RH |
349 | 0, /* bitpos */ |
350 | complain_overflow_signed, /* complain_on_overflow */ | |
351 | bfd_elf_generic_reloc, /* special_function */ | |
352 | "R_PPC_REL24", /* name */ | |
b34976b6 | 353 | FALSE, /* partial_inplace */ |
252b5132 RH |
354 | 0, /* src_mask */ |
355 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 356 | TRUE), /* pcrel_offset */ |
252b5132 | 357 | |
8da6118f | 358 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
359 | HOWTO (R_PPC_REL14, /* type */ |
360 | 0, /* rightshift */ | |
361 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
362 | 16, /* bitsize */ | |
b34976b6 | 363 | TRUE, /* pc_relative */ |
252b5132 RH |
364 | 0, /* bitpos */ |
365 | complain_overflow_signed, /* complain_on_overflow */ | |
366 | bfd_elf_generic_reloc, /* special_function */ | |
367 | "R_PPC_REL14", /* name */ | |
b34976b6 | 368 | FALSE, /* partial_inplace */ |
252b5132 RH |
369 | 0, /* src_mask */ |
370 | 0xfffc, /* dst_mask */ | |
b34976b6 | 371 | TRUE), /* pcrel_offset */ |
252b5132 | 372 | |
8da6118f | 373 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
374 | the branch is expected to be taken. The lower two bits must be |
375 | zero. */ | |
376 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ | |
377 | 0, /* rightshift */ | |
378 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
379 | 16, /* bitsize */ | |
b34976b6 | 380 | TRUE, /* pc_relative */ |
252b5132 RH |
381 | 0, /* bitpos */ |
382 | complain_overflow_signed, /* complain_on_overflow */ | |
383 | bfd_elf_generic_reloc, /* special_function */ | |
384 | "R_PPC_REL14_BRTAKEN", /* name */ | |
b34976b6 | 385 | FALSE, /* partial_inplace */ |
252b5132 RH |
386 | 0, /* src_mask */ |
387 | 0xfffc, /* dst_mask */ | |
b34976b6 | 388 | TRUE), /* pcrel_offset */ |
252b5132 | 389 | |
8da6118f | 390 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
391 | the branch is not expected to be taken. The lower two bits must |
392 | be zero. */ | |
393 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ | |
394 | 0, /* rightshift */ | |
395 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 16, /* bitsize */ | |
b34976b6 | 397 | TRUE, /* pc_relative */ |
252b5132 RH |
398 | 0, /* bitpos */ |
399 | complain_overflow_signed, /* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
401 | "R_PPC_REL14_BRNTAKEN",/* name */ | |
b34976b6 | 402 | FALSE, /* partial_inplace */ |
252b5132 RH |
403 | 0, /* src_mask */ |
404 | 0xfffc, /* dst_mask */ | |
b34976b6 | 405 | TRUE), /* pcrel_offset */ |
252b5132 RH |
406 | |
407 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the | |
408 | symbol. */ | |
409 | HOWTO (R_PPC_GOT16, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 16, /* bitsize */ | |
b34976b6 | 413 | FALSE, /* pc_relative */ |
252b5132 RH |
414 | 0, /* bitpos */ |
415 | complain_overflow_signed, /* complain_on_overflow */ | |
3ce51288 | 416 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 417 | "R_PPC_GOT16", /* name */ |
b34976b6 | 418 | FALSE, /* partial_inplace */ |
252b5132 RH |
419 | 0, /* src_mask */ |
420 | 0xffff, /* dst_mask */ | |
b34976b6 | 421 | FALSE), /* pcrel_offset */ |
252b5132 RH |
422 | |
423 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for | |
424 | the symbol. */ | |
425 | HOWTO (R_PPC_GOT16_LO, /* type */ | |
426 | 0, /* rightshift */ | |
427 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
428 | 16, /* bitsize */ | |
b34976b6 | 429 | FALSE, /* pc_relative */ |
252b5132 RH |
430 | 0, /* bitpos */ |
431 | complain_overflow_dont, /* complain_on_overflow */ | |
3ce51288 | 432 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 433 | "R_PPC_GOT16_LO", /* name */ |
b34976b6 | 434 | FALSE, /* partial_inplace */ |
252b5132 RH |
435 | 0, /* src_mask */ |
436 | 0xffff, /* dst_mask */ | |
b34976b6 | 437 | FALSE), /* pcrel_offset */ |
252b5132 RH |
438 | |
439 | /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for | |
440 | the symbol. */ | |
441 | HOWTO (R_PPC_GOT16_HI, /* type */ | |
442 | 16, /* rightshift */ | |
443 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
444 | 16, /* bitsize */ | |
b34976b6 | 445 | FALSE, /* pc_relative */ |
252b5132 | 446 | 0, /* bitpos */ |
86c95733 | 447 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 448 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 449 | "R_PPC_GOT16_HI", /* name */ |
b34976b6 | 450 | FALSE, /* partial_inplace */ |
252b5132 RH |
451 | 0, /* src_mask */ |
452 | 0xffff, /* dst_mask */ | |
b34976b6 | 453 | FALSE), /* pcrel_offset */ |
252b5132 RH |
454 | |
455 | /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for | |
456 | the symbol. */ | |
457 | HOWTO (R_PPC_GOT16_HA, /* type */ | |
458 | 16, /* rightshift */ | |
459 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
460 | 16, /* bitsize */ | |
b34976b6 | 461 | FALSE, /* pc_relative */ |
252b5132 | 462 | 0, /* bitpos */ |
86c95733 | 463 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 464 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 465 | "R_PPC_GOT16_HA", /* name */ |
b34976b6 | 466 | FALSE, /* partial_inplace */ |
252b5132 RH |
467 | 0, /* src_mask */ |
468 | 0xffff, /* dst_mask */ | |
b34976b6 | 469 | FALSE), /* pcrel_offset */ |
252b5132 RH |
470 | |
471 | /* Like R_PPC_REL24, but referring to the procedure linkage table | |
472 | entry for the symbol. */ | |
473 | HOWTO (R_PPC_PLTREL24, /* type */ | |
474 | 0, /* rightshift */ | |
475 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
476 | 26, /* bitsize */ | |
b34976b6 | 477 | TRUE, /* pc_relative */ |
252b5132 | 478 | 0, /* bitpos */ |
3ce51288 AM |
479 | complain_overflow_signed, /* complain_on_overflow */ |
480 | ppc_elf_unhandled_reloc, /* special_function */ | |
252b5132 | 481 | "R_PPC_PLTREL24", /* name */ |
b34976b6 | 482 | FALSE, /* partial_inplace */ |
252b5132 RH |
483 | 0, /* src_mask */ |
484 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 485 | TRUE), /* pcrel_offset */ |
252b5132 RH |
486 | |
487 | /* This is used only by the dynamic linker. The symbol should exist | |
488 | both in the object being run and in some shared library. The | |
489 | dynamic linker copies the data addressed by the symbol from the | |
490 | shared library into the object, because the object being | |
491 | run has to have the data at some particular address. */ | |
492 | HOWTO (R_PPC_COPY, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
b34976b6 | 496 | FALSE, /* pc_relative */ |
252b5132 | 497 | 0, /* bitpos */ |
86c95733 | 498 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 499 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 500 | "R_PPC_COPY", /* name */ |
b34976b6 | 501 | FALSE, /* partial_inplace */ |
252b5132 RH |
502 | 0, /* src_mask */ |
503 | 0, /* dst_mask */ | |
b34976b6 | 504 | FALSE), /* pcrel_offset */ |
252b5132 RH |
505 | |
506 | /* Like R_PPC_ADDR32, but used when setting global offset table | |
507 | entries. */ | |
508 | HOWTO (R_PPC_GLOB_DAT, /* type */ | |
509 | 0, /* rightshift */ | |
510 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
511 | 32, /* bitsize */ | |
b34976b6 | 512 | FALSE, /* pc_relative */ |
252b5132 | 513 | 0, /* bitpos */ |
86c95733 | 514 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 515 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 516 | "R_PPC_GLOB_DAT", /* name */ |
b34976b6 | 517 | FALSE, /* partial_inplace */ |
252b5132 RH |
518 | 0, /* src_mask */ |
519 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 520 | FALSE), /* pcrel_offset */ |
252b5132 RH |
521 | |
522 | /* Marks a procedure linkage table entry for a symbol. */ | |
523 | HOWTO (R_PPC_JMP_SLOT, /* type */ | |
524 | 0, /* rightshift */ | |
525 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
526 | 32, /* bitsize */ | |
b34976b6 | 527 | FALSE, /* pc_relative */ |
252b5132 | 528 | 0, /* bitpos */ |
86c95733 | 529 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 530 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 531 | "R_PPC_JMP_SLOT", /* name */ |
b34976b6 | 532 | FALSE, /* partial_inplace */ |
252b5132 RH |
533 | 0, /* src_mask */ |
534 | 0, /* dst_mask */ | |
b34976b6 | 535 | FALSE), /* pcrel_offset */ |
252b5132 RH |
536 | |
537 | /* Used only by the dynamic linker. When the object is run, this | |
538 | longword is set to the load address of the object, plus the | |
539 | addend. */ | |
540 | HOWTO (R_PPC_RELATIVE, /* type */ | |
541 | 0, /* rightshift */ | |
542 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
543 | 32, /* bitsize */ | |
b34976b6 | 544 | FALSE, /* pc_relative */ |
252b5132 | 545 | 0, /* bitpos */ |
86c95733 | 546 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
547 | bfd_elf_generic_reloc, /* special_function */ |
548 | "R_PPC_RELATIVE", /* name */ | |
b34976b6 | 549 | FALSE, /* partial_inplace */ |
252b5132 RH |
550 | 0, /* src_mask */ |
551 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 552 | FALSE), /* pcrel_offset */ |
252b5132 RH |
553 | |
554 | /* Like R_PPC_REL24, but uses the value of the symbol within the | |
555 | object rather than the final value. Normally used for | |
556 | _GLOBAL_OFFSET_TABLE_. */ | |
557 | HOWTO (R_PPC_LOCAL24PC, /* type */ | |
558 | 0, /* rightshift */ | |
559 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
560 | 26, /* bitsize */ | |
b34976b6 | 561 | TRUE, /* pc_relative */ |
252b5132 RH |
562 | 0, /* bitpos */ |
563 | complain_overflow_signed, /* complain_on_overflow */ | |
564 | bfd_elf_generic_reloc, /* special_function */ | |
565 | "R_PPC_LOCAL24PC", /* name */ | |
b34976b6 | 566 | FALSE, /* partial_inplace */ |
252b5132 RH |
567 | 0, /* src_mask */ |
568 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 569 | TRUE), /* pcrel_offset */ |
252b5132 RH |
570 | |
571 | /* Like R_PPC_ADDR32, but may be unaligned. */ | |
572 | HOWTO (R_PPC_UADDR32, /* type */ | |
573 | 0, /* rightshift */ | |
574 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
575 | 32, /* bitsize */ | |
b34976b6 | 576 | FALSE, /* pc_relative */ |
252b5132 | 577 | 0, /* bitpos */ |
86c95733 | 578 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
579 | bfd_elf_generic_reloc, /* special_function */ |
580 | "R_PPC_UADDR32", /* name */ | |
b34976b6 | 581 | FALSE, /* partial_inplace */ |
252b5132 RH |
582 | 0, /* src_mask */ |
583 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 584 | FALSE), /* pcrel_offset */ |
252b5132 RH |
585 | |
586 | /* Like R_PPC_ADDR16, but may be unaligned. */ | |
587 | HOWTO (R_PPC_UADDR16, /* type */ | |
588 | 0, /* rightshift */ | |
589 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
590 | 16, /* bitsize */ | |
b34976b6 | 591 | FALSE, /* pc_relative */ |
252b5132 RH |
592 | 0, /* bitpos */ |
593 | complain_overflow_bitfield, /* complain_on_overflow */ | |
594 | bfd_elf_generic_reloc, /* special_function */ | |
595 | "R_PPC_UADDR16", /* name */ | |
b34976b6 | 596 | FALSE, /* partial_inplace */ |
252b5132 RH |
597 | 0, /* src_mask */ |
598 | 0xffff, /* dst_mask */ | |
b34976b6 | 599 | FALSE), /* pcrel_offset */ |
252b5132 RH |
600 | |
601 | /* 32-bit PC relative */ | |
602 | HOWTO (R_PPC_REL32, /* type */ | |
603 | 0, /* rightshift */ | |
604 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
605 | 32, /* bitsize */ | |
b34976b6 | 606 | TRUE, /* pc_relative */ |
252b5132 | 607 | 0, /* bitpos */ |
86c95733 | 608 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 RH |
609 | bfd_elf_generic_reloc, /* special_function */ |
610 | "R_PPC_REL32", /* name */ | |
b34976b6 | 611 | FALSE, /* partial_inplace */ |
252b5132 RH |
612 | 0, /* src_mask */ |
613 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 614 | TRUE), /* pcrel_offset */ |
252b5132 RH |
615 | |
616 | /* 32-bit relocation to the symbol's procedure linkage table. | |
c3668558 | 617 | FIXME: not supported. */ |
252b5132 RH |
618 | HOWTO (R_PPC_PLT32, /* type */ |
619 | 0, /* rightshift */ | |
620 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
621 | 32, /* bitsize */ | |
b34976b6 | 622 | FALSE, /* pc_relative */ |
252b5132 | 623 | 0, /* bitpos */ |
86c95733 | 624 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 625 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 626 | "R_PPC_PLT32", /* name */ |
b34976b6 | 627 | FALSE, /* partial_inplace */ |
252b5132 RH |
628 | 0, /* src_mask */ |
629 | 0, /* dst_mask */ | |
b34976b6 | 630 | FALSE), /* pcrel_offset */ |
252b5132 RH |
631 | |
632 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
c3668558 | 633 | FIXME: not supported. */ |
252b5132 RH |
634 | HOWTO (R_PPC_PLTREL32, /* type */ |
635 | 0, /* rightshift */ | |
636 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
637 | 32, /* bitsize */ | |
b34976b6 | 638 | TRUE, /* pc_relative */ |
252b5132 | 639 | 0, /* bitpos */ |
86c95733 | 640 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 641 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 642 | "R_PPC_PLTREL32", /* name */ |
b34976b6 | 643 | FALSE, /* partial_inplace */ |
252b5132 RH |
644 | 0, /* src_mask */ |
645 | 0, /* dst_mask */ | |
b34976b6 | 646 | TRUE), /* pcrel_offset */ |
252b5132 RH |
647 | |
648 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for | |
649 | the symbol. */ | |
650 | HOWTO (R_PPC_PLT16_LO, /* type */ | |
651 | 0, /* rightshift */ | |
652 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
653 | 16, /* bitsize */ | |
b34976b6 | 654 | FALSE, /* pc_relative */ |
252b5132 RH |
655 | 0, /* bitpos */ |
656 | complain_overflow_dont, /* complain_on_overflow */ | |
3ce51288 | 657 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 658 | "R_PPC_PLT16_LO", /* name */ |
b34976b6 | 659 | FALSE, /* partial_inplace */ |
252b5132 RH |
660 | 0, /* src_mask */ |
661 | 0xffff, /* dst_mask */ | |
b34976b6 | 662 | FALSE), /* pcrel_offset */ |
252b5132 RH |
663 | |
664 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for | |
665 | the symbol. */ | |
666 | HOWTO (R_PPC_PLT16_HI, /* type */ | |
667 | 16, /* rightshift */ | |
668 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
669 | 16, /* bitsize */ | |
b34976b6 | 670 | FALSE, /* pc_relative */ |
252b5132 | 671 | 0, /* bitpos */ |
86c95733 | 672 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 673 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 674 | "R_PPC_PLT16_HI", /* name */ |
b34976b6 | 675 | FALSE, /* partial_inplace */ |
252b5132 RH |
676 | 0, /* src_mask */ |
677 | 0xffff, /* dst_mask */ | |
b34976b6 | 678 | FALSE), /* pcrel_offset */ |
252b5132 RH |
679 | |
680 | /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for | |
681 | the symbol. */ | |
682 | HOWTO (R_PPC_PLT16_HA, /* type */ | |
683 | 16, /* rightshift */ | |
684 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
685 | 16, /* bitsize */ | |
b34976b6 | 686 | FALSE, /* pc_relative */ |
252b5132 | 687 | 0, /* bitpos */ |
86c95733 | 688 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 689 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 690 | "R_PPC_PLT16_HA", /* name */ |
b34976b6 | 691 | FALSE, /* partial_inplace */ |
252b5132 RH |
692 | 0, /* src_mask */ |
693 | 0xffff, /* dst_mask */ | |
b34976b6 | 694 | FALSE), /* pcrel_offset */ |
252b5132 RH |
695 | |
696 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with | |
697 | small data items. */ | |
698 | HOWTO (R_PPC_SDAREL16, /* type */ | |
699 | 0, /* rightshift */ | |
700 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
701 | 16, /* bitsize */ | |
b34976b6 | 702 | FALSE, /* pc_relative */ |
252b5132 RH |
703 | 0, /* bitpos */ |
704 | complain_overflow_signed, /* complain_on_overflow */ | |
3ce51288 | 705 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 706 | "R_PPC_SDAREL16", /* name */ |
b34976b6 | 707 | FALSE, /* partial_inplace */ |
252b5132 RH |
708 | 0, /* src_mask */ |
709 | 0xffff, /* dst_mask */ | |
b34976b6 | 710 | FALSE), /* pcrel_offset */ |
252b5132 | 711 | |
c061c2d8 | 712 | /* 16-bit section relative relocation. */ |
252b5132 RH |
713 | HOWTO (R_PPC_SECTOFF, /* type */ |
714 | 0, /* rightshift */ | |
c061c2d8 AM |
715 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
716 | 16, /* bitsize */ | |
b34976b6 | 717 | FALSE, /* pc_relative */ |
252b5132 | 718 | 0, /* bitpos */ |
86c95733 | 719 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 | 720 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 721 | "R_PPC_SECTOFF", /* name */ |
b34976b6 | 722 | FALSE, /* partial_inplace */ |
252b5132 | 723 | 0, /* src_mask */ |
c061c2d8 | 724 | 0xffff, /* dst_mask */ |
b34976b6 | 725 | FALSE), /* pcrel_offset */ |
252b5132 | 726 | |
c3668558 | 727 | /* 16-bit lower half section relative relocation. */ |
252b5132 RH |
728 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
729 | 0, /* rightshift */ | |
730 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
731 | 16, /* bitsize */ | |
b34976b6 | 732 | FALSE, /* pc_relative */ |
252b5132 RH |
733 | 0, /* bitpos */ |
734 | complain_overflow_dont, /* complain_on_overflow */ | |
3ce51288 | 735 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 736 | "R_PPC_SECTOFF_LO", /* name */ |
b34976b6 | 737 | FALSE, /* partial_inplace */ |
252b5132 RH |
738 | 0, /* src_mask */ |
739 | 0xffff, /* dst_mask */ | |
b34976b6 | 740 | FALSE), /* pcrel_offset */ |
252b5132 | 741 | |
c3668558 | 742 | /* 16-bit upper half section relative relocation. */ |
252b5132 RH |
743 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
744 | 16, /* rightshift */ | |
745 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
746 | 16, /* bitsize */ | |
b34976b6 | 747 | FALSE, /* pc_relative */ |
252b5132 | 748 | 0, /* bitpos */ |
86c95733 | 749 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 750 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 751 | "R_PPC_SECTOFF_HI", /* name */ |
b34976b6 | 752 | FALSE, /* partial_inplace */ |
252b5132 RH |
753 | 0, /* src_mask */ |
754 | 0xffff, /* dst_mask */ | |
b34976b6 | 755 | FALSE), /* pcrel_offset */ |
252b5132 | 756 | |
c3668558 | 757 | /* 16-bit upper half adjusted section relative relocation. */ |
252b5132 RH |
758 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
759 | 16, /* rightshift */ | |
760 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
761 | 16, /* bitsize */ | |
b34976b6 | 762 | FALSE, /* pc_relative */ |
252b5132 | 763 | 0, /* bitpos */ |
86c95733 | 764 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 765 | ppc_elf_unhandled_reloc, /* special_function */ |
252b5132 | 766 | "R_PPC_SECTOFF_HA", /* name */ |
b34976b6 | 767 | FALSE, /* partial_inplace */ |
252b5132 RH |
768 | 0, /* src_mask */ |
769 | 0xffff, /* dst_mask */ | |
b34976b6 | 770 | FALSE), /* pcrel_offset */ |
252b5132 | 771 | |
727fc41e | 772 | /* Marker relocs for TLS. */ |
7619e7c7 | 773 | HOWTO (R_PPC_TLS, |
252b5132 RH |
774 | 0, /* rightshift */ |
775 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
776 | 32, /* bitsize */ | |
b34976b6 | 777 | FALSE, /* pc_relative */ |
252b5132 | 778 | 0, /* bitpos */ |
7619e7c7 | 779 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 | 780 | bfd_elf_generic_reloc, /* special_function */ |
7619e7c7 AM |
781 | "R_PPC_TLS", /* name */ |
782 | FALSE, /* partial_inplace */ | |
783 | 0, /* src_mask */ | |
784 | 0, /* dst_mask */ | |
785 | FALSE), /* pcrel_offset */ | |
786 | ||
727fc41e AM |
787 | HOWTO (R_PPC_TLSGD, |
788 | 0, /* rightshift */ | |
789 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
790 | 32, /* bitsize */ | |
791 | FALSE, /* pc_relative */ | |
792 | 0, /* bitpos */ | |
793 | complain_overflow_dont, /* complain_on_overflow */ | |
794 | bfd_elf_generic_reloc, /* special_function */ | |
795 | "R_PPC_TLSGD", /* name */ | |
796 | FALSE, /* partial_inplace */ | |
797 | 0, /* src_mask */ | |
798 | 0, /* dst_mask */ | |
799 | FALSE), /* pcrel_offset */ | |
800 | ||
801 | HOWTO (R_PPC_TLSLD, | |
802 | 0, /* rightshift */ | |
803 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
804 | 32, /* bitsize */ | |
805 | FALSE, /* pc_relative */ | |
806 | 0, /* bitpos */ | |
807 | complain_overflow_dont, /* complain_on_overflow */ | |
808 | bfd_elf_generic_reloc, /* special_function */ | |
809 | "R_PPC_TLSLD", /* name */ | |
810 | FALSE, /* partial_inplace */ | |
811 | 0, /* src_mask */ | |
812 | 0, /* dst_mask */ | |
813 | FALSE), /* pcrel_offset */ | |
814 | ||
7619e7c7 AM |
815 | /* Computes the load module index of the load module that contains the |
816 | definition of its TLS sym. */ | |
817 | HOWTO (R_PPC_DTPMOD32, | |
818 | 0, /* rightshift */ | |
819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
820 | 32, /* bitsize */ | |
821 | FALSE, /* pc_relative */ | |
822 | 0, /* bitpos */ | |
823 | complain_overflow_dont, /* complain_on_overflow */ | |
824 | ppc_elf_unhandled_reloc, /* special_function */ | |
825 | "R_PPC_DTPMOD32", /* name */ | |
b34976b6 | 826 | FALSE, /* partial_inplace */ |
252b5132 RH |
827 | 0, /* src_mask */ |
828 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 829 | FALSE), /* pcrel_offset */ |
252b5132 | 830 | |
7619e7c7 AM |
831 | /* Computes a dtv-relative displacement, the difference between the value |
832 | of sym+add and the base address of the thread-local storage block that | |
833 | contains the definition of sym, minus 0x8000. */ | |
834 | HOWTO (R_PPC_DTPREL32, | |
835 | 0, /* rightshift */ | |
836 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
837 | 32, /* bitsize */ | |
838 | FALSE, /* pc_relative */ | |
839 | 0, /* bitpos */ | |
840 | complain_overflow_dont, /* complain_on_overflow */ | |
841 | ppc_elf_unhandled_reloc, /* special_function */ | |
842 | "R_PPC_DTPREL32", /* name */ | |
843 | FALSE, /* partial_inplace */ | |
844 | 0, /* src_mask */ | |
845 | 0xffffffff, /* dst_mask */ | |
846 | FALSE), /* pcrel_offset */ | |
847 | ||
848 | /* A 16 bit dtprel reloc. */ | |
849 | HOWTO (R_PPC_DTPREL16, | |
252b5132 RH |
850 | 0, /* rightshift */ |
851 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
852 | 16, /* bitsize */ | |
b34976b6 | 853 | FALSE, /* pc_relative */ |
252b5132 | 854 | 0, /* bitpos */ |
7619e7c7 AM |
855 | complain_overflow_signed, /* complain_on_overflow */ |
856 | ppc_elf_unhandled_reloc, /* special_function */ | |
857 | "R_PPC_DTPREL16", /* name */ | |
b34976b6 | 858 | FALSE, /* partial_inplace */ |
252b5132 RH |
859 | 0, /* src_mask */ |
860 | 0xffff, /* dst_mask */ | |
b34976b6 | 861 | FALSE), /* pcrel_offset */ |
252b5132 | 862 | |
7619e7c7 AM |
863 | /* Like DTPREL16, but no overflow. */ |
864 | HOWTO (R_PPC_DTPREL16_LO, | |
252b5132 RH |
865 | 0, /* rightshift */ |
866 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
867 | 16, /* bitsize */ | |
b34976b6 | 868 | FALSE, /* pc_relative */ |
252b5132 | 869 | 0, /* bitpos */ |
7619e7c7 AM |
870 | complain_overflow_dont, /* complain_on_overflow */ |
871 | ppc_elf_unhandled_reloc, /* special_function */ | |
872 | "R_PPC_DTPREL16_LO", /* name */ | |
b34976b6 | 873 | FALSE, /* partial_inplace */ |
252b5132 RH |
874 | 0, /* src_mask */ |
875 | 0xffff, /* dst_mask */ | |
b34976b6 | 876 | FALSE), /* pcrel_offset */ |
252b5132 | 877 | |
7619e7c7 AM |
878 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ |
879 | HOWTO (R_PPC_DTPREL16_HI, | |
252b5132 RH |
880 | 16, /* rightshift */ |
881 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
882 | 16, /* bitsize */ | |
b34976b6 | 883 | FALSE, /* pc_relative */ |
252b5132 RH |
884 | 0, /* bitpos */ |
885 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
886 | ppc_elf_unhandled_reloc, /* special_function */ |
887 | "R_PPC_DTPREL16_HI", /* name */ | |
b34976b6 | 888 | FALSE, /* partial_inplace */ |
252b5132 RH |
889 | 0, /* src_mask */ |
890 | 0xffff, /* dst_mask */ | |
b34976b6 | 891 | FALSE), /* pcrel_offset */ |
252b5132 | 892 | |
7619e7c7 AM |
893 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ |
894 | HOWTO (R_PPC_DTPREL16_HA, | |
252b5132 RH |
895 | 16, /* rightshift */ |
896 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
897 | 16, /* bitsize */ | |
b34976b6 | 898 | FALSE, /* pc_relative */ |
252b5132 RH |
899 | 0, /* bitpos */ |
900 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
901 | ppc_elf_unhandled_reloc, /* special_function */ |
902 | "R_PPC_DTPREL16_HA", /* name */ | |
b34976b6 | 903 | FALSE, /* partial_inplace */ |
252b5132 RH |
904 | 0, /* src_mask */ |
905 | 0xffff, /* dst_mask */ | |
b34976b6 | 906 | FALSE), /* pcrel_offset */ |
252b5132 | 907 | |
7619e7c7 AM |
908 | /* Computes a tp-relative displacement, the difference between the value of |
909 | sym+add and the value of the thread pointer (r13). */ | |
910 | HOWTO (R_PPC_TPREL32, | |
911 | 0, /* rightshift */ | |
912 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
913 | 32, /* bitsize */ | |
914 | FALSE, /* pc_relative */ | |
915 | 0, /* bitpos */ | |
916 | complain_overflow_dont, /* complain_on_overflow */ | |
917 | ppc_elf_unhandled_reloc, /* special_function */ | |
918 | "R_PPC_TPREL32", /* name */ | |
919 | FALSE, /* partial_inplace */ | |
920 | 0, /* src_mask */ | |
921 | 0xffffffff, /* dst_mask */ | |
922 | FALSE), /* pcrel_offset */ | |
923 | ||
924 | /* A 16 bit tprel reloc. */ | |
925 | HOWTO (R_PPC_TPREL16, | |
252b5132 RH |
926 | 0, /* rightshift */ |
927 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
928 | 16, /* bitsize */ | |
b34976b6 | 929 | FALSE, /* pc_relative */ |
252b5132 | 930 | 0, /* bitpos */ |
7619e7c7 AM |
931 | complain_overflow_signed, /* complain_on_overflow */ |
932 | ppc_elf_unhandled_reloc, /* special_function */ | |
933 | "R_PPC_TPREL16", /* name */ | |
b34976b6 | 934 | FALSE, /* partial_inplace */ |
252b5132 RH |
935 | 0, /* src_mask */ |
936 | 0xffff, /* dst_mask */ | |
b34976b6 | 937 | FALSE), /* pcrel_offset */ |
252b5132 | 938 | |
7619e7c7 AM |
939 | /* Like TPREL16, but no overflow. */ |
940 | HOWTO (R_PPC_TPREL16_LO, | |
252b5132 RH |
941 | 0, /* rightshift */ |
942 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
943 | 16, /* bitsize */ | |
b34976b6 | 944 | FALSE, /* pc_relative */ |
252b5132 | 945 | 0, /* bitpos */ |
7619e7c7 AM |
946 | complain_overflow_dont, /* complain_on_overflow */ |
947 | ppc_elf_unhandled_reloc, /* special_function */ | |
948 | "R_PPC_TPREL16_LO", /* name */ | |
b34976b6 | 949 | FALSE, /* partial_inplace */ |
252b5132 RH |
950 | 0, /* src_mask */ |
951 | 0xffff, /* dst_mask */ | |
b34976b6 | 952 | FALSE), /* pcrel_offset */ |
252b5132 | 953 | |
7619e7c7 AM |
954 | /* Like TPREL16_LO, but next higher group of 16 bits. */ |
955 | HOWTO (R_PPC_TPREL16_HI, | |
956 | 16, /* rightshift */ | |
957 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
958 | 16, /* bitsize */ | |
959 | FALSE, /* pc_relative */ | |
960 | 0, /* bitpos */ | |
961 | complain_overflow_dont, /* complain_on_overflow */ | |
962 | ppc_elf_unhandled_reloc, /* special_function */ | |
963 | "R_PPC_TPREL16_HI", /* name */ | |
964 | FALSE, /* partial_inplace */ | |
965 | 0, /* src_mask */ | |
966 | 0xffff, /* dst_mask */ | |
967 | FALSE), /* pcrel_offset */ | |
968 | ||
969 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
970 | HOWTO (R_PPC_TPREL16_HA, | |
971 | 16, /* rightshift */ | |
972 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
973 | 16, /* bitsize */ | |
974 | FALSE, /* pc_relative */ | |
975 | 0, /* bitpos */ | |
976 | complain_overflow_dont, /* complain_on_overflow */ | |
977 | ppc_elf_unhandled_reloc, /* special_function */ | |
978 | "R_PPC_TPREL16_HA", /* name */ | |
979 | FALSE, /* partial_inplace */ | |
980 | 0, /* src_mask */ | |
981 | 0xffff, /* dst_mask */ | |
982 | FALSE), /* pcrel_offset */ | |
983 | ||
984 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
985 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
986 | to the first entry. */ | |
987 | HOWTO (R_PPC_GOT_TLSGD16, | |
252b5132 RH |
988 | 0, /* rightshift */ |
989 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
990 | 16, /* bitsize */ | |
b34976b6 | 991 | FALSE, /* pc_relative */ |
252b5132 RH |
992 | 0, /* bitpos */ |
993 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
994 | ppc_elf_unhandled_reloc, /* special_function */ |
995 | "R_PPC_GOT_TLSGD16", /* name */ | |
b34976b6 | 996 | FALSE, /* partial_inplace */ |
252b5132 RH |
997 | 0, /* src_mask */ |
998 | 0xffff, /* dst_mask */ | |
b34976b6 | 999 | FALSE), /* pcrel_offset */ |
252b5132 | 1000 | |
7619e7c7 AM |
1001 | /* Like GOT_TLSGD16, but no overflow. */ |
1002 | HOWTO (R_PPC_GOT_TLSGD16_LO, | |
252b5132 | 1003 | 0, /* rightshift */ |
7619e7c7 | 1004 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 1005 | 16, /* bitsize */ |
b34976b6 | 1006 | FALSE, /* pc_relative */ |
252b5132 | 1007 | 0, /* bitpos */ |
7619e7c7 AM |
1008 | complain_overflow_dont, /* complain_on_overflow */ |
1009 | ppc_elf_unhandled_reloc, /* special_function */ | |
1010 | "R_PPC_GOT_TLSGD16_LO", /* name */ | |
b34976b6 | 1011 | FALSE, /* partial_inplace */ |
252b5132 RH |
1012 | 0, /* src_mask */ |
1013 | 0xffff, /* dst_mask */ | |
b34976b6 | 1014 | FALSE), /* pcrel_offset */ |
252b5132 | 1015 | |
7619e7c7 AM |
1016 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1017 | HOWTO (R_PPC_GOT_TLSGD16_HI, | |
1018 | 16, /* rightshift */ | |
1019 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1020 | 16, /* bitsize */ | |
1021 | FALSE, /* pc_relative */ | |
1022 | 0, /* bitpos */ | |
1023 | complain_overflow_dont, /* complain_on_overflow */ | |
1024 | ppc_elf_unhandled_reloc, /* special_function */ | |
1025 | "R_PPC_GOT_TLSGD16_HI", /* name */ | |
1026 | FALSE, /* partial_inplace */ | |
1027 | 0, /* src_mask */ | |
1028 | 0xffff, /* dst_mask */ | |
1029 | FALSE), /* pcrel_offset */ | |
252b5132 | 1030 | |
7619e7c7 AM |
1031 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1032 | HOWTO (R_PPC_GOT_TLSGD16_HA, | |
1033 | 16, /* rightshift */ | |
1034 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1035 | 16, /* bitsize */ | |
1036 | FALSE, /* pc_relative */ | |
1037 | 0, /* bitpos */ | |
1038 | complain_overflow_dont, /* complain_on_overflow */ | |
1039 | ppc_elf_unhandled_reloc, /* special_function */ | |
1040 | "R_PPC_GOT_TLSGD16_HA", /* name */ | |
1041 | FALSE, /* partial_inplace */ | |
1042 | 0, /* src_mask */ | |
1043 | 0xffff, /* dst_mask */ | |
1044 | FALSE), /* pcrel_offset */ | |
1045 | ||
1046 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1047 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1048 | first entry. */ | |
1049 | HOWTO (R_PPC_GOT_TLSLD16, | |
252b5132 RH |
1050 | 0, /* rightshift */ |
1051 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1052 | 16, /* bitsize */ | |
7619e7c7 | 1053 | FALSE, /* pc_relative */ |
252b5132 RH |
1054 | 0, /* bitpos */ |
1055 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1056 | ppc_elf_unhandled_reloc, /* special_function */ |
1057 | "R_PPC_GOT_TLSLD16", /* name */ | |
b34976b6 | 1058 | FALSE, /* partial_inplace */ |
252b5132 RH |
1059 | 0, /* src_mask */ |
1060 | 0xffff, /* dst_mask */ | |
b34976b6 | 1061 | FALSE), /* pcrel_offset */ |
252b5132 | 1062 | |
7619e7c7 AM |
1063 | /* Like GOT_TLSLD16, but no overflow. */ |
1064 | HOWTO (R_PPC_GOT_TLSLD16_LO, | |
252b5132 | 1065 | 0, /* rightshift */ |
7619e7c7 AM |
1066 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1067 | 16, /* bitsize */ | |
b34976b6 | 1068 | FALSE, /* pc_relative */ |
252b5132 RH |
1069 | 0, /* bitpos */ |
1070 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1071 | ppc_elf_unhandled_reloc, /* special_function */ |
1072 | "R_PPC_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1073 | FALSE, /* partial_inplace */ |
252b5132 | 1074 | 0, /* src_mask */ |
7619e7c7 | 1075 | 0xffff, /* dst_mask */ |
b34976b6 | 1076 | FALSE), /* pcrel_offset */ |
252b5132 | 1077 | |
7619e7c7 AM |
1078 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1079 | HOWTO (R_PPC_GOT_TLSLD16_HI, | |
1080 | 16, /* rightshift */ | |
1081 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1082 | 16, /* bitsize */ | |
b34976b6 | 1083 | FALSE, /* pc_relative */ |
252b5132 RH |
1084 | 0, /* bitpos */ |
1085 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1086 | ppc_elf_unhandled_reloc, /* special_function */ |
1087 | "R_PPC_GOT_TLSLD16_HI", /* name */ | |
b34976b6 | 1088 | FALSE, /* partial_inplace */ |
252b5132 | 1089 | 0, /* src_mask */ |
7619e7c7 | 1090 | 0xffff, /* dst_mask */ |
b34976b6 | 1091 | FALSE), /* pcrel_offset */ |
252b5132 | 1092 | |
7619e7c7 AM |
1093 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1094 | HOWTO (R_PPC_GOT_TLSLD16_HA, | |
1095 | 16, /* rightshift */ | |
1096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1097 | 16, /* bitsize */ | |
1098 | FALSE, /* pc_relative */ | |
1099 | 0, /* bitpos */ | |
1100 | complain_overflow_dont, /* complain_on_overflow */ | |
1101 | ppc_elf_unhandled_reloc, /* special_function */ | |
1102 | "R_PPC_GOT_TLSLD16_HA", /* name */ | |
1103 | FALSE, /* partial_inplace */ | |
1104 | 0, /* src_mask */ | |
1105 | 0xffff, /* dst_mask */ | |
1106 | FALSE), /* pcrel_offset */ | |
1107 | ||
1108 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes | |
1109 | the offset to the entry. */ | |
1110 | HOWTO (R_PPC_GOT_DTPREL16, | |
252b5132 RH |
1111 | 0, /* rightshift */ |
1112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1113 | 16, /* bitsize */ | |
b34976b6 | 1114 | FALSE, /* pc_relative */ |
252b5132 RH |
1115 | 0, /* bitpos */ |
1116 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1117 | ppc_elf_unhandled_reloc, /* special_function */ |
1118 | "R_PPC_GOT_DTPREL16", /* name */ | |
b34976b6 | 1119 | FALSE, /* partial_inplace */ |
252b5132 RH |
1120 | 0, /* src_mask */ |
1121 | 0xffff, /* dst_mask */ | |
b34976b6 | 1122 | FALSE), /* pcrel_offset */ |
252b5132 | 1123 | |
7619e7c7 AM |
1124 | /* Like GOT_DTPREL16, but no overflow. */ |
1125 | HOWTO (R_PPC_GOT_DTPREL16_LO, | |
1126 | 0, /* rightshift */ | |
1127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1128 | 16, /* bitsize */ | |
1129 | FALSE, /* pc_relative */ | |
1130 | 0, /* bitpos */ | |
1131 | complain_overflow_dont, /* complain_on_overflow */ | |
1132 | ppc_elf_unhandled_reloc, /* special_function */ | |
1133 | "R_PPC_GOT_DTPREL16_LO", /* name */ | |
1134 | FALSE, /* partial_inplace */ | |
1135 | 0, /* src_mask */ | |
1136 | 0xffff, /* dst_mask */ | |
1137 | FALSE), /* pcrel_offset */ | |
252b5132 | 1138 | |
7619e7c7 AM |
1139 | /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ |
1140 | HOWTO (R_PPC_GOT_DTPREL16_HI, | |
1141 | 16, /* rightshift */ | |
1142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1143 | 16, /* bitsize */ | |
1144 | FALSE, /* pc_relative */ | |
1145 | 0, /* bitpos */ | |
1146 | complain_overflow_dont, /* complain_on_overflow */ | |
1147 | ppc_elf_unhandled_reloc, /* special_function */ | |
1148 | "R_PPC_GOT_DTPREL16_HI", /* name */ | |
1149 | FALSE, /* partial_inplace */ | |
1150 | 0, /* src_mask */ | |
1151 | 0xffff, /* dst_mask */ | |
1152 | FALSE), /* pcrel_offset */ | |
252b5132 | 1153 | |
7619e7c7 AM |
1154 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1155 | HOWTO (R_PPC_GOT_DTPREL16_HA, | |
1156 | 16, /* rightshift */ | |
1157 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1158 | 16, /* bitsize */ | |
1159 | FALSE, /* pc_relative */ | |
1160 | 0, /* bitpos */ | |
1161 | complain_overflow_dont, /* complain_on_overflow */ | |
1162 | ppc_elf_unhandled_reloc, /* special_function */ | |
1163 | "R_PPC_GOT_DTPREL16_HA", /* name */ | |
1164 | FALSE, /* partial_inplace */ | |
1165 | 0, /* src_mask */ | |
1166 | 0xffff, /* dst_mask */ | |
1167 | FALSE), /* pcrel_offset */ | |
c3668558 | 1168 | |
7619e7c7 AM |
1169 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the |
1170 | offset to the entry. */ | |
1171 | HOWTO (R_PPC_GOT_TPREL16, | |
1172 | 0, /* rightshift */ | |
1173 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1174 | 16, /* bitsize */ | |
1175 | FALSE, /* pc_relative */ | |
1176 | 0, /* bitpos */ | |
1177 | complain_overflow_signed, /* complain_on_overflow */ | |
1178 | ppc_elf_unhandled_reloc, /* special_function */ | |
1179 | "R_PPC_GOT_TPREL16", /* name */ | |
1180 | FALSE, /* partial_inplace */ | |
1181 | 0, /* src_mask */ | |
1182 | 0xffff, /* dst_mask */ | |
1183 | FALSE), /* pcrel_offset */ | |
1184 | ||
1185 | /* Like GOT_TPREL16, but no overflow. */ | |
1186 | HOWTO (R_PPC_GOT_TPREL16_LO, | |
1187 | 0, /* rightshift */ | |
1188 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1189 | 16, /* bitsize */ | |
1190 | FALSE, /* pc_relative */ | |
1191 | 0, /* bitpos */ | |
1192 | complain_overflow_dont, /* complain_on_overflow */ | |
1193 | ppc_elf_unhandled_reloc, /* special_function */ | |
1194 | "R_PPC_GOT_TPREL16_LO", /* name */ | |
1195 | FALSE, /* partial_inplace */ | |
1196 | 0, /* src_mask */ | |
1197 | 0xffff, /* dst_mask */ | |
1198 | FALSE), /* pcrel_offset */ | |
1199 | ||
1200 | /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ | |
1201 | HOWTO (R_PPC_GOT_TPREL16_HI, | |
1202 | 16, /* rightshift */ | |
1203 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1204 | 16, /* bitsize */ | |
1205 | FALSE, /* pc_relative */ | |
1206 | 0, /* bitpos */ | |
1207 | complain_overflow_dont, /* complain_on_overflow */ | |
1208 | ppc_elf_unhandled_reloc, /* special_function */ | |
1209 | "R_PPC_GOT_TPREL16_HI", /* name */ | |
1210 | FALSE, /* partial_inplace */ | |
1211 | 0, /* src_mask */ | |
1212 | 0xffff, /* dst_mask */ | |
1213 | FALSE), /* pcrel_offset */ | |
1214 | ||
1215 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ | |
1216 | HOWTO (R_PPC_GOT_TPREL16_HA, | |
1217 | 16, /* rightshift */ | |
1218 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1219 | 16, /* bitsize */ | |
1220 | FALSE, /* pc_relative */ | |
1221 | 0, /* bitpos */ | |
1222 | complain_overflow_dont, /* complain_on_overflow */ | |
1223 | ppc_elf_unhandled_reloc, /* special_function */ | |
1224 | "R_PPC_GOT_TPREL16_HA", /* name */ | |
1225 | FALSE, /* partial_inplace */ | |
1226 | 0, /* src_mask */ | |
1227 | 0xffff, /* dst_mask */ | |
1228 | FALSE), /* pcrel_offset */ | |
1229 | ||
1230 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
1231 | in the SVR4 ELF ABI. */ | |
1232 | ||
1233 | /* 32 bit value resulting from the addend minus the symbol. */ | |
1234 | HOWTO (R_PPC_EMB_NADDR32, /* type */ | |
1235 | 0, /* rightshift */ | |
1236 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1237 | 32, /* bitsize */ | |
1238 | FALSE, /* pc_relative */ | |
1239 | 0, /* bitpos */ | |
86c95733 | 1240 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 1241 | ppc_elf_unhandled_reloc, /* special_function */ |
7619e7c7 AM |
1242 | "R_PPC_EMB_NADDR32", /* name */ |
1243 | FALSE, /* partial_inplace */ | |
1244 | 0, /* src_mask */ | |
1245 | 0xffffffff, /* dst_mask */ | |
1246 | FALSE), /* pcrel_offset */ | |
1247 | ||
1248 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1249 | HOWTO (R_PPC_EMB_NADDR16, /* type */ | |
1250 | 0, /* rightshift */ | |
1251 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1252 | 16, /* bitsize */ | |
1253 | FALSE, /* pc_relative */ | |
1254 | 0, /* bitpos */ | |
86c95733 | 1255 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 | 1256 | ppc_elf_unhandled_reloc, /* special_function */ |
7619e7c7 AM |
1257 | "R_PPC_EMB_NADDR16", /* name */ |
1258 | FALSE, /* partial_inplace */ | |
1259 | 0, /* src_mask */ | |
1260 | 0xffff, /* dst_mask */ | |
1261 | FALSE), /* pcrel_offset */ | |
1262 | ||
1263 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1264 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ | |
1265 | 0, /* rightshift */ | |
1266 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1267 | 16, /* bitsize */ | |
1268 | FALSE, /* pc_relative */ | |
1269 | 0, /* bitpos */ | |
1270 | complain_overflow_dont,/* complain_on_overflow */ | |
3ce51288 | 1271 | ppc_elf_unhandled_reloc, /* special_function */ |
7619e7c7 AM |
1272 | "R_PPC_EMB_ADDR16_LO", /* name */ |
1273 | FALSE, /* partial_inplace */ | |
1274 | 0, /* src_mask */ | |
1275 | 0xffff, /* dst_mask */ | |
1276 | FALSE), /* pcrel_offset */ | |
1277 | ||
1278 | /* The high order 16 bits of the addend minus the symbol. */ | |
1279 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ | |
1280 | 16, /* rightshift */ | |
1281 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1282 | 16, /* bitsize */ | |
1283 | FALSE, /* pc_relative */ | |
1284 | 0, /* bitpos */ | |
1285 | complain_overflow_dont, /* complain_on_overflow */ | |
3ce51288 | 1286 | ppc_elf_unhandled_reloc, /* special_function */ |
7619e7c7 AM |
1287 | "R_PPC_EMB_NADDR16_HI", /* name */ |
1288 | FALSE, /* partial_inplace */ | |
1289 | 0, /* src_mask */ | |
1290 | 0xffff, /* dst_mask */ | |
1291 | FALSE), /* pcrel_offset */ | |
1292 | ||
1293 | /* The high order 16 bits of the result of the addend minus the address, | |
1294 | plus 1 if the contents of the low 16 bits, treated as a signed number, | |
1295 | is negative. */ | |
1296 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ | |
1297 | 16, /* rightshift */ | |
1298 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1299 | 16, /* bitsize */ | |
1300 | FALSE, /* pc_relative */ | |
1301 | 0, /* bitpos */ | |
1302 | complain_overflow_dont, /* complain_on_overflow */ | |
3ce51288 | 1303 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1304 | "R_PPC_EMB_NADDR16_HA", /* name */ |
1305 | FALSE, /* partial_inplace */ | |
1306 | 0, /* src_mask */ | |
1307 | 0xffff, /* dst_mask */ | |
1308 | FALSE), /* pcrel_offset */ | |
1309 | ||
1310 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1311 | address in the .sdata section, and returning the offset from | |
1312 | _SDA_BASE_ for that relocation. */ | |
1313 | HOWTO (R_PPC_EMB_SDAI16, /* type */ | |
1314 | 0, /* rightshift */ | |
1315 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1316 | 16, /* bitsize */ | |
1317 | FALSE, /* pc_relative */ | |
1318 | 0, /* bitpos */ | |
bd6c6e2b | 1319 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 | 1320 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1321 | "R_PPC_EMB_SDAI16", /* name */ |
1322 | FALSE, /* partial_inplace */ | |
1323 | 0, /* src_mask */ | |
1324 | 0xffff, /* dst_mask */ | |
1325 | FALSE), /* pcrel_offset */ | |
1326 | ||
1327 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1328 | address in the .sdata2 section, and returning the offset from | |
1329 | _SDA2_BASE_ for that relocation. */ | |
1330 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ | |
1331 | 0, /* rightshift */ | |
1332 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1333 | 16, /* bitsize */ | |
1334 | FALSE, /* pc_relative */ | |
1335 | 0, /* bitpos */ | |
bd6c6e2b | 1336 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 | 1337 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1338 | "R_PPC_EMB_SDA2I16", /* name */ |
1339 | FALSE, /* partial_inplace */ | |
1340 | 0, /* src_mask */ | |
1341 | 0xffff, /* dst_mask */ | |
1342 | FALSE), /* pcrel_offset */ | |
1343 | ||
1344 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with | |
1345 | small data items. */ | |
1346 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ | |
1347 | 0, /* rightshift */ | |
1348 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1349 | 16, /* bitsize */ | |
1350 | FALSE, /* pc_relative */ | |
1351 | 0, /* bitpos */ | |
1352 | complain_overflow_signed, /* complain_on_overflow */ | |
3ce51288 | 1353 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1354 | "R_PPC_EMB_SDA2REL", /* name */ |
1355 | FALSE, /* partial_inplace */ | |
1356 | 0, /* src_mask */ | |
1357 | 0xffff, /* dst_mask */ | |
1358 | FALSE), /* pcrel_offset */ | |
1359 | ||
1360 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit | |
1361 | signed offset from the appropriate base, and filling in the register | |
1362 | field with the appropriate register (0, 2, or 13). */ | |
1363 | HOWTO (R_PPC_EMB_SDA21, /* type */ | |
1364 | 0, /* rightshift */ | |
1365 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1366 | 16, /* bitsize */ | |
1367 | FALSE, /* pc_relative */ | |
1368 | 0, /* bitpos */ | |
1369 | complain_overflow_signed, /* complain_on_overflow */ | |
3ce51288 | 1370 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1371 | "R_PPC_EMB_SDA21", /* name */ |
1372 | FALSE, /* partial_inplace */ | |
1373 | 0, /* src_mask */ | |
1374 | 0xffff, /* dst_mask */ | |
1375 | FALSE), /* pcrel_offset */ | |
1376 | ||
1377 | /* Relocation not handled: R_PPC_EMB_MRKREF */ | |
1378 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ | |
1379 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ | |
1380 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ | |
1381 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ | |
1382 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ | |
1383 | ||
1384 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling | |
1385 | in the 16 bit signed offset from the appropriate base, and filling in the | |
1386 | register field with the appropriate register (0, 2, or 13). */ | |
1387 | HOWTO (R_PPC_EMB_RELSDA, /* type */ | |
1388 | 0, /* rightshift */ | |
1389 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1390 | 16, /* bitsize */ | |
ddfd6795 | 1391 | FALSE, /* pc_relative */ |
25dbc73a AM |
1392 | 0, /* bitpos */ |
1393 | complain_overflow_signed, /* complain_on_overflow */ | |
3ce51288 | 1394 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a AM |
1395 | "R_PPC_EMB_RELSDA", /* name */ |
1396 | FALSE, /* partial_inplace */ | |
1397 | 0, /* src_mask */ | |
1398 | 0xffff, /* dst_mask */ | |
1399 | FALSE), /* pcrel_offset */ | |
1400 | ||
b9c361e0 JL |
1401 | /* A relative 8 bit branch. */ |
1402 | HOWTO (R_PPC_VLE_REL8, /* type */ | |
1403 | 1, /* rightshift */ | |
1404 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1405 | 8, /* bitsize */ | |
1406 | TRUE, /* pc_relative */ | |
1407 | 0, /* bitpos */ | |
1408 | complain_overflow_signed, /* complain_on_overflow */ | |
1409 | bfd_elf_generic_reloc, /* special_function */ | |
1410 | "R_PPC_VLE_REL8", /* name */ | |
1411 | FALSE, /* partial_inplace */ | |
1412 | 0, /* src_mask */ | |
1413 | 0xff, /* dst_mask */ | |
1414 | TRUE), /* pcrel_offset */ | |
68ffbac6 | 1415 | |
b9c361e0 JL |
1416 | /* A relative 15 bit branch. */ |
1417 | HOWTO (R_PPC_VLE_REL15, /* type */ | |
1418 | 1, /* rightshift */ | |
1419 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1420 | 15, /* bitsize */ | |
1421 | TRUE, /* pc_relative */ | |
1422 | 1, /* bitpos */ | |
1423 | complain_overflow_signed, /* complain_on_overflow */ | |
1424 | bfd_elf_generic_reloc, /* special_function */ | |
1425 | "R_PPC_VLE_REL15", /* name */ | |
1426 | FALSE, /* partial_inplace */ | |
1427 | 0, /* src_mask */ | |
dfdaec14 | 1428 | 0xfffe, /* dst_mask */ |
b9c361e0 JL |
1429 | TRUE), /* pcrel_offset */ |
1430 | ||
68ffbac6 | 1431 | /* A relative 24 bit branch. */ |
b9c361e0 JL |
1432 | HOWTO (R_PPC_VLE_REL24, /* type */ |
1433 | 1, /* rightshift */ | |
1434 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1435 | 24, /* bitsize */ | |
1436 | TRUE, /* pc_relative */ | |
1437 | 1, /* bitpos */ | |
1438 | complain_overflow_signed, /* complain_on_overflow */ | |
1439 | bfd_elf_generic_reloc, /* special_function */ | |
1440 | "R_PPC_VLE_REL24", /* name */ | |
1441 | FALSE, /* partial_inplace */ | |
1442 | 0, /* src_mask */ | |
1443 | 0x1fffffe, /* dst_mask */ | |
1444 | TRUE), /* pcrel_offset */ | |
1445 | ||
1446 | /* The 16 LSBS in split16a format. */ | |
1447 | HOWTO (R_PPC_VLE_LO16A, /* type */ | |
1448 | 0, /* rightshift */ | |
1449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1450 | 16, /* bitsize */ |
bdaacd3a | 1451 | FALSE, /* pc_relative */ |
b9c361e0 | 1452 | 0, /* bitpos */ |
86c95733 | 1453 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 1454 | ppc_elf_unhandled_reloc, /* special_function */ |
b9c361e0 JL |
1455 | "R_PPC_VLE_LO16A", /* name */ |
1456 | FALSE, /* partial_inplace */ | |
1457 | 0, /* src_mask */ | |
bdaacd3a | 1458 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1459 | FALSE), /* pcrel_offset */ |
1460 | ||
1461 | /* The 16 LSBS in split16d format. */ | |
1462 | HOWTO (R_PPC_VLE_LO16D, /* type */ | |
1463 | 0, /* rightshift */ | |
1464 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1465 | 16, /* bitsize */ |
b9c361e0 JL |
1466 | FALSE, /* pc_relative */ |
1467 | 0, /* bitpos */ | |
86c95733 | 1468 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 AM |
1469 | ppc_elf_unhandled_reloc, /* special_function */ |
1470 | "R_PPC_VLE_LO16D", /* name */ | |
b9c361e0 JL |
1471 | FALSE, /* partial_inplace */ |
1472 | 0, /* src_mask */ | |
1473 | 0x1f07ff, /* dst_mask */ | |
1474 | FALSE), /* pcrel_offset */ | |
1475 | ||
1476 | /* Bits 16-31 split16a format. */ | |
1477 | HOWTO (R_PPC_VLE_HI16A, /* type */ | |
86c95733 | 1478 | 16, /* rightshift */ |
b9c361e0 | 1479 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1480 | 16, /* bitsize */ |
b9c361e0 JL |
1481 | FALSE, /* pc_relative */ |
1482 | 0, /* bitpos */ | |
86c95733 | 1483 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 AM |
1484 | ppc_elf_unhandled_reloc, /* special_function */ |
1485 | "R_PPC_VLE_HI16A", /* name */ | |
b9c361e0 JL |
1486 | FALSE, /* partial_inplace */ |
1487 | 0, /* src_mask */ | |
bdaacd3a | 1488 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1489 | FALSE), /* pcrel_offset */ |
1490 | ||
1491 | /* Bits 16-31 split16d format. */ | |
1492 | HOWTO (R_PPC_VLE_HI16D, /* type */ | |
86c95733 | 1493 | 16, /* rightshift */ |
b9c361e0 | 1494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1495 | 16, /* bitsize */ |
b9c361e0 JL |
1496 | FALSE, /* pc_relative */ |
1497 | 0, /* bitpos */ | |
86c95733 | 1498 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 AM |
1499 | ppc_elf_unhandled_reloc, /* special_function */ |
1500 | "R_PPC_VLE_HI16D", /* name */ | |
b9c361e0 JL |
1501 | FALSE, /* partial_inplace */ |
1502 | 0, /* src_mask */ | |
1503 | 0x1f07ff, /* dst_mask */ | |
1504 | FALSE), /* pcrel_offset */ | |
1505 | ||
1506 | /* Bits 16-31 (High Adjusted) in split16a format. */ | |
1507 | HOWTO (R_PPC_VLE_HA16A, /* type */ | |
86c95733 | 1508 | 16, /* rightshift */ |
b9c361e0 | 1509 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1510 | 16, /* bitsize */ |
b9c361e0 JL |
1511 | FALSE, /* pc_relative */ |
1512 | 0, /* bitpos */ | |
86c95733 | 1513 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 AM |
1514 | ppc_elf_unhandled_reloc, /* special_function */ |
1515 | "R_PPC_VLE_HA16A", /* name */ | |
b9c361e0 JL |
1516 | FALSE, /* partial_inplace */ |
1517 | 0, /* src_mask */ | |
bdaacd3a | 1518 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1519 | FALSE), /* pcrel_offset */ |
1520 | ||
1521 | /* Bits 16-31 (High Adjusted) in split16d format. */ | |
1522 | HOWTO (R_PPC_VLE_HA16D, /* type */ | |
86c95733 | 1523 | 16, /* rightshift */ |
b9c361e0 | 1524 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1525 | 16, /* bitsize */ |
b9c361e0 JL |
1526 | FALSE, /* pc_relative */ |
1527 | 0, /* bitpos */ | |
86c95733 | 1528 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 AM |
1529 | ppc_elf_unhandled_reloc, /* special_function */ |
1530 | "R_PPC_VLE_HA16D", /* name */ | |
b9c361e0 JL |
1531 | FALSE, /* partial_inplace */ |
1532 | 0, /* src_mask */ | |
1533 | 0x1f07ff, /* dst_mask */ | |
1534 | FALSE), /* pcrel_offset */ | |
1535 | ||
86c95733 AM |
1536 | /* This reloc is like R_PPC_EMB_SDA21 but only applies to e_add16i |
1537 | instructions. If the register base is 0 then the linker changes | |
1538 | the e_add16i to an e_li instruction. */ | |
1539 | HOWTO (R_PPC_VLE_SDA21, /* type */ | |
b9c361e0 JL |
1540 | 0, /* rightshift */ |
1541 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1542 | 16, /* bitsize */ |
b9c361e0 JL |
1543 | FALSE, /* pc_relative */ |
1544 | 0, /* bitpos */ | |
86c95733 | 1545 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 AM |
1546 | ppc_elf_unhandled_reloc, /* special_function */ |
1547 | "R_PPC_VLE_SDA21", /* name */ | |
b9c361e0 JL |
1548 | FALSE, /* partial_inplace */ |
1549 | 0, /* src_mask */ | |
1550 | 0xffff, /* dst_mask */ | |
1551 | FALSE), /* pcrel_offset */ | |
1552 | ||
86c95733 | 1553 | /* Like R_PPC_VLE_SDA21 but ignore overflow. */ |
b9c361e0 JL |
1554 | HOWTO (R_PPC_VLE_SDA21_LO, /* type */ |
1555 | 0, /* rightshift */ | |
1556 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1557 | 16, /* bitsize */ |
b9c361e0 JL |
1558 | FALSE, /* pc_relative */ |
1559 | 0, /* bitpos */ | |
86c95733 | 1560 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 1561 | ppc_elf_unhandled_reloc, /* special_function */ |
b9c361e0 JL |
1562 | "R_PPC_VLE_SDA21_LO", /* name */ |
1563 | FALSE, /* partial_inplace */ | |
1564 | 0, /* src_mask */ | |
86c95733 | 1565 | 0xffff, /* dst_mask */ |
b9c361e0 JL |
1566 | FALSE), /* pcrel_offset */ |
1567 | ||
1568 | /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */ | |
1569 | HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */ | |
1570 | 0, /* rightshift */ | |
1571 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1572 | 16, /* bitsize */ |
b9c361e0 JL |
1573 | FALSE, /* pc_relative */ |
1574 | 0, /* bitpos */ | |
3ce51288 AM |
1575 | complain_overflow_dont, /* complain_on_overflow */ |
1576 | ppc_elf_unhandled_reloc, /* special_function */ | |
1577 | "R_PPC_VLE_SDAREL_LO16A", /* name */ | |
b9c361e0 JL |
1578 | FALSE, /* partial_inplace */ |
1579 | 0, /* src_mask */ | |
bdaacd3a | 1580 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1581 | FALSE), /* pcrel_offset */ |
1582 | ||
1583 | /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */ | |
b9c361e0 JL |
1584 | HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */ |
1585 | 0, /* rightshift */ | |
1586 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
86c95733 | 1587 | 16, /* bitsize */ |
b9c361e0 JL |
1588 | FALSE, /* pc_relative */ |
1589 | 0, /* bitpos */ | |
3ce51288 AM |
1590 | complain_overflow_dont, /* complain_on_overflow */ |
1591 | ppc_elf_unhandled_reloc, /* special_function */ | |
1592 | "R_PPC_VLE_SDAREL_LO16D", /* name */ | |
b9c361e0 JL |
1593 | FALSE, /* partial_inplace */ |
1594 | 0, /* src_mask */ | |
1595 | 0x1f07ff, /* dst_mask */ | |
1596 | FALSE), /* pcrel_offset */ | |
1597 | ||
1598 | /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */ | |
3ce51288 | 1599 | HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */ |
86c95733 | 1600 | 16, /* rightshift */ |
b9c361e0 | 1601 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1602 | 16, /* bitsize */ |
b9c361e0 JL |
1603 | FALSE, /* pc_relative */ |
1604 | 0, /* bitpos */ | |
3ce51288 AM |
1605 | complain_overflow_dont, /* complain_on_overflow */ |
1606 | ppc_elf_unhandled_reloc, /* special_function */ | |
1607 | "R_PPC_VLE_SDAREL_HI16A", /* name */ | |
b9c361e0 JL |
1608 | FALSE, /* partial_inplace */ |
1609 | 0, /* src_mask */ | |
bdaacd3a | 1610 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1611 | FALSE), /* pcrel_offset */ |
1612 | ||
1613 | /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */ | |
3ce51288 | 1614 | HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */ |
86c95733 | 1615 | 16, /* rightshift */ |
b9c361e0 | 1616 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1617 | 16, /* bitsize */ |
b9c361e0 JL |
1618 | FALSE, /* pc_relative */ |
1619 | 0, /* bitpos */ | |
3ce51288 AM |
1620 | complain_overflow_dont, /* complain_on_overflow */ |
1621 | ppc_elf_unhandled_reloc, /* special_function */ | |
1622 | "R_PPC_VLE_SDAREL_HI16D", /* name */ | |
b9c361e0 JL |
1623 | FALSE, /* partial_inplace */ |
1624 | 0, /* src_mask */ | |
1625 | 0x1f07ff, /* dst_mask */ | |
1626 | FALSE), /* pcrel_offset */ | |
1627 | ||
1628 | /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */ | |
3ce51288 | 1629 | HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */ |
86c95733 | 1630 | 16, /* rightshift */ |
b9c361e0 | 1631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1632 | 16, /* bitsize */ |
b9c361e0 JL |
1633 | FALSE, /* pc_relative */ |
1634 | 0, /* bitpos */ | |
3ce51288 AM |
1635 | complain_overflow_dont, /* complain_on_overflow */ |
1636 | ppc_elf_unhandled_reloc, /* special_function */ | |
1637 | "R_PPC_VLE_SDAREL_HA16A", /* name */ | |
b9c361e0 JL |
1638 | FALSE, /* partial_inplace */ |
1639 | 0, /* src_mask */ | |
bdaacd3a | 1640 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1641 | FALSE), /* pcrel_offset */ |
1642 | ||
1643 | /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */ | |
3ce51288 | 1644 | HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */ |
86c95733 | 1645 | 16, /* rightshift */ |
b9c361e0 | 1646 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
86c95733 | 1647 | 16, /* bitsize */ |
b9c361e0 JL |
1648 | FALSE, /* pc_relative */ |
1649 | 0, /* bitpos */ | |
3ce51288 AM |
1650 | complain_overflow_dont, /* complain_on_overflow */ |
1651 | ppc_elf_unhandled_reloc, /* special_function */ | |
1652 | "R_PPC_VLE_SDAREL_HA16D", /* name */ | |
b9c361e0 JL |
1653 | FALSE, /* partial_inplace */ |
1654 | 0, /* src_mask */ | |
1655 | 0x1f07ff, /* dst_mask */ | |
1656 | FALSE), /* pcrel_offset */ | |
1657 | ||
e054468f AM |
1658 | HOWTO (R_PPC_IRELATIVE, /* type */ |
1659 | 0, /* rightshift */ | |
1660 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1661 | 32, /* bitsize */ | |
1662 | FALSE, /* pc_relative */ | |
1663 | 0, /* bitpos */ | |
86c95733 | 1664 | complain_overflow_dont, /* complain_on_overflow */ |
3ce51288 | 1665 | ppc_elf_unhandled_reloc, /* special_function */ |
e054468f AM |
1666 | "R_PPC_IRELATIVE", /* name */ |
1667 | FALSE, /* partial_inplace */ | |
1668 | 0, /* src_mask */ | |
1669 | 0xffffffff, /* dst_mask */ | |
1670 | FALSE), /* pcrel_offset */ | |
1671 | ||
d7128ce4 AM |
1672 | /* A 16 bit relative relocation. */ |
1673 | HOWTO (R_PPC_REL16, /* type */ | |
1674 | 0, /* rightshift */ | |
1675 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1676 | 16, /* bitsize */ | |
1677 | TRUE, /* pc_relative */ | |
1678 | 0, /* bitpos */ | |
86c95733 | 1679 | complain_overflow_signed, /* complain_on_overflow */ |
d7128ce4 AM |
1680 | bfd_elf_generic_reloc, /* special_function */ |
1681 | "R_PPC_REL16", /* name */ | |
1682 | FALSE, /* partial_inplace */ | |
1683 | 0, /* src_mask */ | |
1684 | 0xffff, /* dst_mask */ | |
1685 | TRUE), /* pcrel_offset */ | |
1686 | ||
1687 | /* A 16 bit relative relocation without overflow. */ | |
1688 | HOWTO (R_PPC_REL16_LO, /* type */ | |
1689 | 0, /* rightshift */ | |
1690 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1691 | 16, /* bitsize */ | |
1692 | TRUE, /* pc_relative */ | |
1693 | 0, /* bitpos */ | |
1694 | complain_overflow_dont,/* complain_on_overflow */ | |
1695 | bfd_elf_generic_reloc, /* special_function */ | |
1696 | "R_PPC_REL16_LO", /* name */ | |
1697 | FALSE, /* partial_inplace */ | |
1698 | 0, /* src_mask */ | |
1699 | 0xffff, /* dst_mask */ | |
1700 | TRUE), /* pcrel_offset */ | |
1701 | ||
1702 | /* The high order 16 bits of a relative address. */ | |
1703 | HOWTO (R_PPC_REL16_HI, /* type */ | |
1704 | 16, /* rightshift */ | |
1705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1706 | 16, /* bitsize */ | |
1707 | TRUE, /* pc_relative */ | |
1708 | 0, /* bitpos */ | |
1709 | complain_overflow_dont, /* complain_on_overflow */ | |
1710 | bfd_elf_generic_reloc, /* special_function */ | |
1711 | "R_PPC_REL16_HI", /* name */ | |
1712 | FALSE, /* partial_inplace */ | |
1713 | 0, /* src_mask */ | |
1714 | 0xffff, /* dst_mask */ | |
1715 | TRUE), /* pcrel_offset */ | |
1716 | ||
1717 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
1718 | the low 16 bits, treated as a signed number, is negative. */ | |
1719 | HOWTO (R_PPC_REL16_HA, /* type */ | |
1720 | 16, /* rightshift */ | |
1721 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1722 | 16, /* bitsize */ | |
1723 | TRUE, /* pc_relative */ | |
1724 | 0, /* bitpos */ | |
1725 | complain_overflow_dont, /* complain_on_overflow */ | |
1726 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1727 | "R_PPC_REL16_HA", /* name */ | |
1728 | FALSE, /* partial_inplace */ | |
1729 | 0, /* src_mask */ | |
1730 | 0xffff, /* dst_mask */ | |
1731 | TRUE), /* pcrel_offset */ | |
1732 | ||
a680de9a PB |
1733 | /* Like R_PPC_REL16_HA but for split field in addpcis. */ |
1734 | HOWTO (R_PPC_REL16DX_HA, /* type */ | |
1735 | 16, /* rightshift */ | |
1736 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1737 | 16, /* bitsize */ | |
1738 | TRUE, /* pc_relative */ | |
1739 | 0, /* bitpos */ | |
1740 | complain_overflow_signed, /* complain_on_overflow */ | |
1741 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1742 | "R_PPC_REL16DX_HA", /* name */ | |
1743 | FALSE, /* partial_inplace */ | |
1744 | 0, /* src_mask */ | |
1745 | 0x1fffc1, /* dst_mask */ | |
1746 | TRUE), /* pcrel_offset */ | |
1747 | ||
25dbc73a AM |
1748 | /* GNU extension to record C++ vtable hierarchy. */ |
1749 | HOWTO (R_PPC_GNU_VTINHERIT, /* type */ | |
1750 | 0, /* rightshift */ | |
1751 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1752 | 0, /* bitsize */ | |
1753 | FALSE, /* pc_relative */ | |
1754 | 0, /* bitpos */ | |
1755 | complain_overflow_dont, /* complain_on_overflow */ | |
1756 | NULL, /* special_function */ | |
1757 | "R_PPC_GNU_VTINHERIT", /* name */ | |
1758 | FALSE, /* partial_inplace */ | |
1759 | 0, /* src_mask */ | |
1760 | 0, /* dst_mask */ | |
1761 | FALSE), /* pcrel_offset */ | |
1762 | ||
1763 | /* GNU extension to record C++ vtable member usage. */ | |
1764 | HOWTO (R_PPC_GNU_VTENTRY, /* type */ | |
1765 | 0, /* rightshift */ | |
1766 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1767 | 0, /* bitsize */ | |
1768 | FALSE, /* pc_relative */ | |
1769 | 0, /* bitpos */ | |
1770 | complain_overflow_dont, /* complain_on_overflow */ | |
1771 | NULL, /* special_function */ | |
1772 | "R_PPC_GNU_VTENTRY", /* name */ | |
7619e7c7 AM |
1773 | FALSE, /* partial_inplace */ |
1774 | 0, /* src_mask */ | |
25dbc73a | 1775 | 0, /* dst_mask */ |
7619e7c7 AM |
1776 | FALSE), /* pcrel_offset */ |
1777 | ||
25dbc73a AM |
1778 | /* Phony reloc to handle AIX style TOC entries. */ |
1779 | HOWTO (R_PPC_TOC16, /* type */ | |
7619e7c7 AM |
1780 | 0, /* rightshift */ |
1781 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1782 | 16, /* bitsize */ | |
1783 | FALSE, /* pc_relative */ | |
1784 | 0, /* bitpos */ | |
25dbc73a | 1785 | complain_overflow_signed, /* complain_on_overflow */ |
3ce51288 | 1786 | ppc_elf_unhandled_reloc, /* special_function */ |
25dbc73a | 1787 | "R_PPC_TOC16", /* name */ |
7619e7c7 AM |
1788 | FALSE, /* partial_inplace */ |
1789 | 0, /* src_mask */ | |
1790 | 0xffff, /* dst_mask */ | |
1791 | FALSE), /* pcrel_offset */ | |
25dbc73a | 1792 | }; |
70a38d42 SDJ |
1793 | |
1794 | /* External 32-bit PPC structure for PRPSINFO. This structure is | |
1795 | ABI-defined, thus we choose to use char arrays here in order to | |
1796 | avoid dealing with different types in different architectures. | |
1797 | ||
1798 | The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while | |
1799 | most non-PPC architectures use `short int'. | |
1800 | ||
1801 | This structure will ultimately be written in the corefile's note | |
1802 | section, as the PRPSINFO. */ | |
1803 | ||
1804 | struct elf_external_ppc_linux_prpsinfo32 | |
1805 | { | |
1806 | char pr_state; /* Numeric process state. */ | |
1807 | char pr_sname; /* Char for pr_state. */ | |
1808 | char pr_zomb; /* Zombie. */ | |
1809 | char pr_nice; /* Nice val. */ | |
1810 | char pr_flag[4]; /* Flags. */ | |
1811 | char pr_uid[4]; | |
1812 | char pr_gid[4]; | |
1813 | char pr_pid[4]; | |
1814 | char pr_ppid[4]; | |
1815 | char pr_pgrp[4]; | |
1816 | char pr_sid[4]; | |
1817 | char pr_fname[16]; /* Filename of executable. */ | |
1818 | char pr_psargs[80]; /* Initial part of arg list. */ | |
1819 | }; | |
1820 | ||
aeb70569 AM |
1821 | /* Helper function to copy an elf_internal_linux_prpsinfo in host |
1822 | endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */ | |
70a38d42 | 1823 | |
aeb70569 AM |
1824 | static inline void |
1825 | swap_ppc_linux_prpsinfo32_out (bfd *obfd, | |
1826 | const struct elf_internal_linux_prpsinfo *from, | |
1827 | struct elf_external_ppc_linux_prpsinfo32 *to) | |
1828 | { | |
1829 | bfd_put_8 (obfd, from->pr_state, &to->pr_state); | |
1830 | bfd_put_8 (obfd, from->pr_sname, &to->pr_sname); | |
1831 | bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb); | |
1832 | bfd_put_8 (obfd, from->pr_nice, &to->pr_nice); | |
1833 | bfd_put_32 (obfd, from->pr_flag, to->pr_flag); | |
1834 | bfd_put_32 (obfd, from->pr_uid, to->pr_uid); | |
1835 | bfd_put_32 (obfd, from->pr_gid, to->pr_gid); | |
1836 | bfd_put_32 (obfd, from->pr_pid, to->pr_pid); | |
1837 | bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid); | |
1838 | bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp); | |
1839 | bfd_put_32 (obfd, from->pr_sid, to->pr_sid); | |
1840 | strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname)); | |
1841 | strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs)); | |
1842 | } | |
25dbc73a AM |
1843 | \f |
1844 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1845 | ||
1846 | static void | |
1847 | ppc_elf_howto_init (void) | |
1848 | { | |
1849 | unsigned int i, type; | |
1850 | ||
1851 | for (i = 0; | |
1852 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1853 | i++) | |
1854 | { | |
1855 | type = ppc_elf_howto_raw[i].type; | |
1856 | if (type >= (sizeof (ppc_elf_howto_table) | |
1857 | / sizeof (ppc_elf_howto_table[0]))) | |
1858 | abort (); | |
1859 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | static reloc_howto_type * | |
1864 | ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1865 | bfd_reloc_code_real_type code) | |
1866 | { | |
1867 | enum elf_ppc_reloc_type r; | |
1868 | ||
1869 | /* Initialize howto table if not already done. */ | |
1870 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
1871 | ppc_elf_howto_init (); | |
1872 | ||
1873 | switch (code) | |
1874 | { | |
1875 | default: | |
1876 | return NULL; | |
1877 | ||
1878 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; | |
1879 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
1880 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
1fe532cf | 1881 | case BFD_RELOC_PPC64_ADDR16_DS: |
25dbc73a | 1882 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; |
1fe532cf | 1883 | case BFD_RELOC_PPC64_ADDR16_LO_DS: |
25dbc73a AM |
1884 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; |
1885 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
1886 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
1887 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
1888 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
1889 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
1890 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
1891 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
1892 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
1893 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
1fe532cf | 1894 | case BFD_RELOC_PPC64_GOT16_DS: |
25dbc73a | 1895 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; |
1fe532cf | 1896 | case BFD_RELOC_PPC64_GOT16_LO_DS: |
25dbc73a AM |
1897 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; |
1898 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
1899 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
1900 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
1901 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
1902 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
1903 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
1904 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
1905 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
1906 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
1fe532cf | 1907 | case BFD_RELOC_PPC64_PLT16_LO_DS: |
25dbc73a AM |
1908 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; |
1909 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
1910 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
1911 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
1fe532cf | 1912 | case BFD_RELOC_PPC64_SECTOFF_DS: |
25dbc73a | 1913 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; |
1fe532cf | 1914 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: |
25dbc73a AM |
1915 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; |
1916 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
1917 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
1918 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
1fe532cf | 1919 | case BFD_RELOC_PPC64_TOC16_DS: |
25dbc73a AM |
1920 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; |
1921 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
727fc41e AM |
1922 | case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break; |
1923 | case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break; | |
25dbc73a | 1924 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; |
1fe532cf | 1925 | case BFD_RELOC_PPC64_TPREL16_DS: |
25dbc73a | 1926 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; |
1fe532cf | 1927 | case BFD_RELOC_PPC64_TPREL16_LO_DS: |
25dbc73a AM |
1928 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; |
1929 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
1930 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
1931 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
1fe532cf | 1932 | case BFD_RELOC_PPC64_DTPREL16_DS: |
25dbc73a | 1933 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; |
1fe532cf | 1934 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: |
25dbc73a AM |
1935 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; |
1936 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
1937 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
1938 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
1939 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
1940 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
1941 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
1942 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
1943 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
1944 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
1945 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
1946 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
1947 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
1948 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
1949 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
1950 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
1951 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
1952 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
1953 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
1954 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
1955 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
1956 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
1957 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
1958 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
1959 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
1960 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
1961 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
1962 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
1963 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
1964 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
1965 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
1966 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
1967 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
1968 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
1969 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
1970 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
b9c361e0 JL |
1971 | case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break; |
1972 | case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break; | |
1973 | case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break; | |
1974 | case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break; | |
1975 | case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break; | |
1976 | case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break; | |
1977 | case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break; | |
1978 | case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break; | |
1979 | case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break; | |
1980 | case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break; | |
1981 | case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break; | |
1982 | case BFD_RELOC_PPC_VLE_SDAREL_LO16A: | |
1983 | r = R_PPC_VLE_SDAREL_LO16A; | |
1984 | break; | |
1985 | case BFD_RELOC_PPC_VLE_SDAREL_LO16D: | |
1986 | r = R_PPC_VLE_SDAREL_LO16D; | |
1987 | break; | |
1988 | case BFD_RELOC_PPC_VLE_SDAREL_HI16A: | |
1989 | r = R_PPC_VLE_SDAREL_HI16A; | |
1990 | break; | |
1991 | case BFD_RELOC_PPC_VLE_SDAREL_HI16D: | |
1992 | r = R_PPC_VLE_SDAREL_HI16D; | |
1993 | break; | |
1994 | case BFD_RELOC_PPC_VLE_SDAREL_HA16A: | |
1995 | r = R_PPC_VLE_SDAREL_HA16A; | |
1996 | break; | |
1997 | case BFD_RELOC_PPC_VLE_SDAREL_HA16D: | |
1998 | r = R_PPC_VLE_SDAREL_HA16D; | |
1999 | break; | |
d7128ce4 AM |
2000 | case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break; |
2001 | case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break; | |
2002 | case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break; | |
2003 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break; | |
a680de9a | 2004 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break; |
25dbc73a AM |
2005 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; |
2006 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
2007 | } | |
2008 | ||
2009 | return ppc_elf_howto_table[r]; | |
2010 | }; | |
2011 | ||
157090f7 AM |
2012 | static reloc_howto_type * |
2013 | ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
2014 | const char *r_name) | |
2015 | { | |
2016 | unsigned int i; | |
2017 | ||
2018 | for (i = 0; | |
2019 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
2020 | i++) | |
2021 | if (ppc_elf_howto_raw[i].name != NULL | |
2022 | && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0) | |
2023 | return &ppc_elf_howto_raw[i]; | |
2024 | ||
2025 | return NULL; | |
2026 | } | |
2027 | ||
25dbc73a AM |
2028 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
2029 | ||
2030 | static void | |
2031 | ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
2032 | arelent *cache_ptr, | |
2033 | Elf_Internal_Rela *dst) | |
2034 | { | |
cd21f5da NC |
2035 | unsigned int r_type; |
2036 | ||
25dbc73a AM |
2037 | /* Initialize howto table if not already done. */ |
2038 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
2039 | ppc_elf_howto_init (); | |
2040 | ||
cd21f5da NC |
2041 | r_type = ELF32_R_TYPE (dst->r_info); |
2042 | if (r_type >= R_PPC_max) | |
2043 | { | |
64d29018 | 2044 | (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"), |
cd21f5da NC |
2045 | abfd, r_type); |
2046 | bfd_set_error (bfd_error_bad_value); | |
2047 | r_type = R_PPC_NONE; | |
2048 | } | |
2049 | cache_ptr->howto = ppc_elf_howto_table[r_type]; | |
375de94a AM |
2050 | |
2051 | /* Just because the above assert didn't trigger doesn't mean that | |
2052 | ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */ | |
2053 | if (!cache_ptr->howto) | |
2054 | { | |
2055 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
cd21f5da | 2056 | abfd, r_type); |
375de94a AM |
2057 | bfd_set_error (bfd_error_bad_value); |
2058 | ||
2059 | cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE]; | |
2060 | } | |
25dbc73a AM |
2061 | } |
2062 | ||
d7128ce4 | 2063 | /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */ |
25dbc73a AM |
2064 | |
2065 | static bfd_reloc_status_type | |
2066 | ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
2067 | arelent *reloc_entry, | |
2068 | asymbol *symbol, | |
2069 | void *data ATTRIBUTE_UNUSED, | |
2070 | asection *input_section, | |
2071 | bfd *output_bfd, | |
2072 | char **error_message ATTRIBUTE_UNUSED) | |
2073 | { | |
a680de9a PB |
2074 | enum elf_ppc_reloc_type r_type; |
2075 | long insn; | |
2076 | bfd_size_type octets; | |
2077 | bfd_vma value; | |
25dbc73a AM |
2078 | |
2079 | if (output_bfd != NULL) | |
2080 | { | |
2081 | reloc_entry->address += input_section->output_offset; | |
2082 | return bfd_reloc_ok; | |
2083 | } | |
2084 | ||
a680de9a PB |
2085 | reloc_entry->addend += 0x8000; |
2086 | r_type = reloc_entry->howto->type; | |
2087 | if (r_type != R_PPC_REL16DX_HA) | |
2088 | return bfd_reloc_continue; | |
2089 | ||
2090 | value = 0; | |
2091 | if (!bfd_is_com_section (symbol->section)) | |
2092 | value = symbol->value; | |
2093 | value += (reloc_entry->addend | |
2094 | + symbol->section->output_offset | |
2095 | + symbol->section->output_section->vma); | |
2096 | value -= (reloc_entry->address | |
2097 | + input_section->output_offset | |
2098 | + input_section->output_section->vma); | |
2099 | value >>= 16; | |
2100 | ||
2101 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2102 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2103 | insn &= ~0x1fffc1; | |
2104 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
2105 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
2106 | return bfd_reloc_ok; | |
25dbc73a AM |
2107 | } |
2108 | ||
2109 | static bfd_reloc_status_type | |
2110 | ppc_elf_unhandled_reloc (bfd *abfd, | |
2111 | arelent *reloc_entry, | |
2112 | asymbol *symbol, | |
2113 | void *data, | |
2114 | asection *input_section, | |
2115 | bfd *output_bfd, | |
2116 | char **error_message) | |
2117 | { | |
2118 | /* If this is a relocatable link (output_bfd test tells us), just | |
2119 | call the generic function. Any adjustment will be done at final | |
2120 | link time. */ | |
2121 | if (output_bfd != NULL) | |
2122 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2123 | input_section, output_bfd, error_message); | |
2124 | ||
2125 | if (error_message != NULL) | |
2126 | { | |
2127 | static char buf[60]; | |
2128 | sprintf (buf, _("generic linker can't handle %s"), | |
2129 | reloc_entry->howto->name); | |
2130 | *error_message = buf; | |
2131 | } | |
2132 | return bfd_reloc_dangerous; | |
2133 | } | |
2134 | \f | |
2135 | /* Sections created by the linker. */ | |
2136 | ||
2137 | typedef struct elf_linker_section | |
2138 | { | |
c9a2f333 | 2139 | /* Pointer to the bfd section. */ |
25dbc73a | 2140 | asection *section; |
c9a2f333 AM |
2141 | /* Section name. */ |
2142 | const char *name; | |
2143 | /* Associated bss section name. */ | |
2144 | const char *bss_name; | |
2145 | /* Associated symbol name. */ | |
2146 | const char *sym_name; | |
046183de AM |
2147 | /* Associated symbol. */ |
2148 | struct elf_link_hash_entry *sym; | |
25dbc73a AM |
2149 | } elf_linker_section_t; |
2150 | ||
2151 | /* Linked list of allocated pointer entries. This hangs off of the | |
2152 | symbol lists, and provides allows us to return different pointers, | |
2153 | based on different addend's. */ | |
2154 | ||
2155 | typedef struct elf_linker_section_pointers | |
2156 | { | |
2157 | /* next allocated pointer for this symbol */ | |
2158 | struct elf_linker_section_pointers *next; | |
2159 | /* offset of pointer from beginning of section */ | |
2160 | bfd_vma offset; | |
2161 | /* addend used */ | |
2162 | bfd_vma addend; | |
2163 | /* which linker section this is */ | |
2164 | elf_linker_section_t *lsect; | |
25dbc73a AM |
2165 | } elf_linker_section_pointers_t; |
2166 | ||
2167 | struct ppc_elf_obj_tdata | |
2168 | { | |
2169 | struct elf_obj_tdata elf; | |
2170 | ||
2171 | /* A mapping from local symbols to offsets into the various linker | |
2172 | sections added. This is index by the symbol index. */ | |
2173 | elf_linker_section_pointers_t **linker_section_pointers; | |
016687f8 AM |
2174 | |
2175 | /* Flags used to auto-detect plt type. */ | |
2176 | unsigned int makes_plt_call : 1; | |
2177 | unsigned int has_rel16 : 1; | |
25dbc73a AM |
2178 | }; |
2179 | ||
2180 | #define ppc_elf_tdata(bfd) \ | |
2181 | ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) | |
7619e7c7 | 2182 | |
25dbc73a AM |
2183 | #define elf_local_ptr_offsets(bfd) \ |
2184 | (ppc_elf_tdata (bfd)->linker_section_pointers) | |
7619e7c7 | 2185 | |
0c8d6e5c AM |
2186 | #define is_ppc_elf(bfd) \ |
2187 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
4dfe6ac6 | 2188 | && elf_object_id (bfd) == PPC32_ELF_DATA) |
0c8d6e5c | 2189 | |
25dbc73a | 2190 | /* Override the generic function because we store some extras. */ |
7619e7c7 | 2191 | |
25dbc73a AM |
2192 | static bfd_boolean |
2193 | ppc_elf_mkobject (bfd *abfd) | |
2194 | { | |
0ffa91dd | 2195 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata), |
4dfe6ac6 | 2196 | PPC32_ELF_DATA); |
25dbc73a | 2197 | } |
7619e7c7 | 2198 | |
14b57c7c AM |
2199 | /* When defaulting arch/mach, decode apuinfo to find a better match. */ |
2200 | ||
2201 | bfd_boolean | |
2202 | _bfd_elf_ppc_set_arch (bfd *abfd) | |
2203 | { | |
2204 | unsigned long mach = 0; | |
2205 | asection *s; | |
2206 | unsigned char *contents; | |
2207 | ||
2208 | if (abfd->arch_info->bits_per_word == 32 | |
2209 | && bfd_big_endian (abfd)) | |
2210 | { | |
2211 | ||
2212 | for (s = abfd->sections; s != NULL; s = s->next) | |
2213 | if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0) | |
2214 | break; | |
2215 | if (s != NULL) | |
2216 | mach = bfd_mach_ppc_vle; | |
2217 | } | |
2218 | ||
2219 | if (mach == 0) | |
2220 | { | |
2221 | s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
2222 | if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents)) | |
2223 | { | |
2224 | unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4); | |
2225 | unsigned int i; | |
2226 | ||
2227 | for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4) | |
2228 | { | |
2229 | unsigned int val = bfd_get_32 (abfd, contents + i); | |
2230 | switch (val >> 16) | |
2231 | { | |
2232 | case PPC_APUINFO_PMR: | |
2233 | case PPC_APUINFO_RFMCI: | |
2234 | if (mach == 0) | |
2235 | mach = bfd_mach_ppc_titan; | |
2236 | break; | |
2237 | ||
2238 | case PPC_APUINFO_ISEL: | |
2239 | case PPC_APUINFO_CACHELCK: | |
2240 | if (mach == bfd_mach_ppc_titan) | |
2241 | mach = bfd_mach_ppc_e500mc; | |
2242 | break; | |
2243 | ||
2244 | case PPC_APUINFO_SPE: | |
2245 | case PPC_APUINFO_EFS: | |
2246 | case PPC_APUINFO_BRLOCK: | |
2247 | if (mach != bfd_mach_ppc_vle) | |
2248 | mach = bfd_mach_ppc_e500; | |
8941017b | 2249 | break; |
14b57c7c AM |
2250 | |
2251 | case PPC_APUINFO_VLE: | |
2252 | mach = bfd_mach_ppc_vle; | |
2253 | break; | |
2254 | ||
2255 | default: | |
2256 | mach = -1ul; | |
2257 | } | |
2258 | } | |
2259 | free (contents); | |
2260 | } | |
2261 | } | |
2262 | ||
2263 | if (mach != 0 && mach != -1ul) | |
2264 | { | |
2265 | const bfd_arch_info_type *arch; | |
2266 | ||
2267 | for (arch = abfd->arch_info->next; arch; arch = arch->next) | |
2268 | if (arch->mach == mach) | |
2269 | { | |
2270 | abfd->arch_info = arch; | |
2271 | break; | |
2272 | } | |
2273 | } | |
2274 | return TRUE; | |
2275 | } | |
2276 | ||
25dbc73a | 2277 | /* Fix bad default arch selected for a 32 bit input bfd when the |
14b57c7c | 2278 | default is 64 bit. Also select arch based on apuinfo. */ |
7619e7c7 | 2279 | |
25dbc73a AM |
2280 | static bfd_boolean |
2281 | ppc_elf_object_p (bfd *abfd) | |
2282 | { | |
14b57c7c AM |
2283 | if (!abfd->arch_info->the_default) |
2284 | return TRUE; | |
2285 | ||
2286 | if (abfd->arch_info->bits_per_word == 64) | |
25dbc73a AM |
2287 | { |
2288 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
7619e7c7 | 2289 | |
25dbc73a AM |
2290 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) |
2291 | { | |
2292 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
2293 | abfd->arch_info = abfd->arch_info->next; | |
2294 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
2295 | } | |
2296 | } | |
14b57c7c | 2297 | return _bfd_elf_ppc_set_arch (abfd); |
25dbc73a | 2298 | } |
7619e7c7 | 2299 | |
25dbc73a | 2300 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
7619e7c7 | 2301 | |
25dbc73a AM |
2302 | static bfd_boolean |
2303 | ppc_elf_set_private_flags (bfd *abfd, flagword flags) | |
2304 | { | |
2305 | BFD_ASSERT (!elf_flags_init (abfd) | |
2306 | || elf_elfheader (abfd)->e_flags == flags); | |
7619e7c7 | 2307 | |
25dbc73a AM |
2308 | elf_elfheader (abfd)->e_flags = flags; |
2309 | elf_flags_init (abfd) = TRUE; | |
2310 | return TRUE; | |
2311 | } | |
2312 | ||
25dbc73a | 2313 | /* Support for core dump NOTE sections. */ |
deaaf2f3 | 2314 | |
b34976b6 | 2315 | static bfd_boolean |
25dbc73a | 2316 | ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 2317 | { |
25dbc73a AM |
2318 | int offset; |
2319 | unsigned int size; | |
252b5132 | 2320 | |
25dbc73a AM |
2321 | switch (note->descsz) |
2322 | { | |
2323 | default: | |
2324 | return FALSE; | |
252b5132 | 2325 | |
25dbc73a AM |
2326 | case 268: /* Linux/PPC. */ |
2327 | /* pr_cursig */ | |
228e534f | 2328 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
deaaf2f3 | 2329 | |
25dbc73a | 2330 | /* pr_pid */ |
228e534f | 2331 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
9abc968f | 2332 | |
25dbc73a AM |
2333 | /* pr_reg */ |
2334 | offset = 72; | |
2335 | size = 192; | |
deaaf2f3 | 2336 | |
25dbc73a AM |
2337 | break; |
2338 | } | |
deaaf2f3 | 2339 | |
25dbc73a AM |
2340 | /* Make a ".reg/999" section. */ |
2341 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2342 | size, note->descpos + offset); | |
2343 | } | |
252b5132 | 2344 | |
25dbc73a AM |
2345 | static bfd_boolean |
2346 | ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2347 | { | |
2348 | switch (note->descsz) | |
deaaf2f3 | 2349 | { |
25dbc73a AM |
2350 | default: |
2351 | return FALSE; | |
deaaf2f3 | 2352 | |
25dbc73a | 2353 | case 128: /* Linux/PPC elf_prpsinfo. */ |
228e534f | 2354 | elf_tdata (abfd)->core->pid |
bc989cdc | 2355 | = bfd_get_32 (abfd, note->descdata + 16); |
228e534f | 2356 | elf_tdata (abfd)->core->program |
25dbc73a | 2357 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); |
228e534f | 2358 | elf_tdata (abfd)->core->command |
25dbc73a AM |
2359 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); |
2360 | } | |
9abc968f | 2361 | |
25dbc73a AM |
2362 | /* Note that for some reason, a spurious space is tacked |
2363 | onto the end of the args in some (at least one anyway) | |
2364 | implementations, so strip it off if it exists. */ | |
70bccea4 | 2365 | |
25dbc73a | 2366 | { |
228e534f | 2367 | char *command = elf_tdata (abfd)->core->command; |
25dbc73a | 2368 | int n = strlen (command); |
70bccea4 | 2369 | |
25dbc73a AM |
2370 | if (0 < n && command[n - 1] == ' ') |
2371 | command[n - 1] = '\0'; | |
2372 | } | |
deaaf2f3 | 2373 | |
25dbc73a AM |
2374 | return TRUE; |
2375 | } | |
deaaf2f3 | 2376 | |
70a38d42 | 2377 | char * |
aeb70569 AM |
2378 | elfcore_write_ppc_linux_prpsinfo32 |
2379 | (bfd *abfd, | |
2380 | char *buf, | |
2381 | int *bufsiz, | |
2382 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
70a38d42 SDJ |
2383 | { |
2384 | struct elf_external_ppc_linux_prpsinfo32 data; | |
2385 | ||
aeb70569 | 2386 | swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data); |
70a38d42 SDJ |
2387 | return elfcore_write_note (abfd, buf, bufsiz, |
2388 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
2389 | } | |
2390 | ||
183e98be AM |
2391 | static char * |
2392 | ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...) | |
2393 | { | |
2394 | switch (note_type) | |
2395 | { | |
2396 | default: | |
2397 | return NULL; | |
2398 | ||
2399 | case NT_PRPSINFO: | |
2400 | { | |
2401 | char data[128]; | |
2402 | va_list ap; | |
2403 | ||
2404 | va_start (ap, note_type); | |
75cd47ed | 2405 | memset (data, 0, sizeof (data)); |
183e98be AM |
2406 | strncpy (data + 32, va_arg (ap, const char *), 16); |
2407 | strncpy (data + 48, va_arg (ap, const char *), 80); | |
2408 | va_end (ap); | |
2409 | return elfcore_write_note (abfd, buf, bufsiz, | |
2410 | "CORE", note_type, data, sizeof (data)); | |
2411 | } | |
2412 | ||
2413 | case NT_PRSTATUS: | |
2414 | { | |
2415 | char data[268]; | |
2416 | va_list ap; | |
2417 | long pid; | |
2418 | int cursig; | |
2419 | const void *greg; | |
2420 | ||
2421 | va_start (ap, note_type); | |
2422 | memset (data, 0, 72); | |
2423 | pid = va_arg (ap, long); | |
2424 | bfd_put_32 (abfd, pid, data + 24); | |
2425 | cursig = va_arg (ap, int); | |
2426 | bfd_put_16 (abfd, cursig, data + 12); | |
2427 | greg = va_arg (ap, const void *); | |
2428 | memcpy (data + 72, greg, 192); | |
2429 | memset (data + 264, 0, 4); | |
2430 | va_end (ap); | |
2431 | return elfcore_write_note (abfd, buf, bufsiz, | |
2432 | "CORE", note_type, data, sizeof (data)); | |
2433 | } | |
2434 | } | |
2435 | } | |
2436 | ||
b9c361e0 | 2437 | static flagword |
68ffbac6 | 2438 | ppc_elf_lookup_section_flags (char *flag_name) |
b9c361e0 JL |
2439 | { |
2440 | ||
2441 | if (!strcmp (flag_name, "SHF_PPC_VLE")) | |
2442 | return SHF_PPC_VLE; | |
2443 | ||
2444 | return 0; | |
2445 | } | |
2446 | ||
2447 | /* Add the VLE flag if required. */ | |
2448 | ||
2449 | bfd_boolean | |
2450 | ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr) | |
2451 | { | |
2452 | if (bfd_get_mach (abfd) == bfd_mach_ppc_vle | |
2453 | && (shdr->sh_flags & SHF_EXECINSTR) != 0) | |
2454 | shdr->sh_flags |= SHF_PPC_VLE; | |
2455 | ||
2456 | return TRUE; | |
2457 | } | |
2458 | ||
25dbc73a AM |
2459 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
2460 | or (bfd_vma) -1 if it should not be included. */ | |
deaaf2f3 | 2461 | |
25dbc73a AM |
2462 | static bfd_vma |
2463 | ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
2464 | const asection *plt ATTRIBUTE_UNUSED, | |
2465 | const arelent *rel) | |
2466 | { | |
2467 | return rel->address; | |
2468 | } | |
deaaf2f3 | 2469 | |
25dbc73a | 2470 | /* Handle a PowerPC specific section when reading an object file. This |
6dc132d9 L |
2471 | is called when bfd_section_from_shdr finds a section with an unknown |
2472 | type. */ | |
deaaf2f3 | 2473 | |
25dbc73a | 2474 | static bfd_boolean |
6dc132d9 L |
2475 | ppc_elf_section_from_shdr (bfd *abfd, |
2476 | Elf_Internal_Shdr *hdr, | |
2477 | const char *name, | |
2478 | int shindex) | |
25dbc73a AM |
2479 | { |
2480 | asection *newsect; | |
2481 | flagword flags; | |
d1c6de6f | 2482 | |
6dc132d9 | 2483 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
25dbc73a | 2484 | return FALSE; |
deaaf2f3 | 2485 | |
25dbc73a AM |
2486 | newsect = hdr->bfd_section; |
2487 | flags = bfd_get_section_flags (abfd, newsect); | |
2488 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2489 | flags |= SEC_EXCLUDE; | |
9abc968f | 2490 | |
25dbc73a AM |
2491 | if (hdr->sh_type == SHT_ORDERED) |
2492 | flags |= SEC_SORT_ENTRIES; | |
d1c6de6f | 2493 | |
25dbc73a AM |
2494 | bfd_set_section_flags (abfd, newsect, flags); |
2495 | return TRUE; | |
2496 | } | |
2497 | ||
2498 | /* Set up any other section flags and such that may be necessary. */ | |
2499 | ||
2500 | static bfd_boolean | |
2501 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
2502 | Elf_Internal_Shdr *shdr, | |
2503 | asection *asect) | |
2504 | { | |
25dbc73a AM |
2505 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) |
2506 | shdr->sh_type = SHT_ORDERED; | |
2507 | ||
2508 | return TRUE; | |
2509 | } | |
2510 | ||
2511 | /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we | |
2512 | need to bump up the number of section headers. */ | |
2513 | ||
2514 | static int | |
a6b96beb AM |
2515 | ppc_elf_additional_program_headers (bfd *abfd, |
2516 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
25dbc73a AM |
2517 | { |
2518 | asection *s; | |
2519 | int ret = 0; | |
d1c6de6f | 2520 | |
25dbc73a AM |
2521 | s = bfd_get_section_by_name (abfd, ".sbss2"); |
2522 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2523 | ++ret; | |
d1c6de6f | 2524 | |
25dbc73a AM |
2525 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); |
2526 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2527 | ++ret; | |
deaaf2f3 | 2528 | |
25dbc73a AM |
2529 | return ret; |
2530 | } | |
deaaf2f3 | 2531 | |
68ffbac6 | 2532 | /* Modify the segment map for VLE executables. */ |
b9c361e0 JL |
2533 | |
2534 | bfd_boolean | |
2535 | ppc_elf_modify_segment_map (bfd *abfd, | |
2536 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
2537 | { | |
2538 | struct elf_segment_map *m, *n; | |
2539 | bfd_size_type amt; | |
2540 | unsigned int j, k; | |
2541 | bfd_boolean sect0_vle, sectj_vle; | |
2542 | ||
2543 | /* At this point in the link, output sections have already been sorted by | |
2544 | LMA and assigned to segments. All that is left to do is to ensure | |
2545 | there is no mixing of VLE & non-VLE sections in a text segment. | |
2546 | If we find that case, we split the segment. | |
2547 | We maintain the original output section order. */ | |
2548 | ||
12bd6957 | 2549 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
b9c361e0 JL |
2550 | { |
2551 | if (m->count == 0) | |
2552 | continue; | |
2553 | ||
94caa966 | 2554 | sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0; |
b9c361e0 JL |
2555 | for (j = 1; j < m->count; ++j) |
2556 | { | |
94caa966 AM |
2557 | sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0; |
2558 | ||
2559 | if (sectj_vle != sect0_vle) | |
b9c361e0 JL |
2560 | break; |
2561 | } | |
2562 | if (j >= m->count) | |
2563 | continue; | |
2564 | ||
b9c361e0 JL |
2565 | /* sections 0..j-1 stay in this (current) segment, |
2566 | the remainder are put in a new segment. | |
2567 | The scan resumes with the new segment. */ | |
2568 | ||
2569 | /* Fix the new segment. */ | |
2570 | amt = sizeof (struct elf_segment_map); | |
2571 | amt += (m->count - j - 1) * sizeof (asection *); | |
2572 | n = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
2573 | if (n == NULL) | |
2574 | return FALSE; | |
2575 | ||
2576 | n->p_type = PT_LOAD; | |
2577 | n->p_flags = PF_X | PF_R; | |
2578 | if (sectj_vle) | |
2579 | n->p_flags |= PF_PPC_VLE; | |
2580 | n->count = m->count - j; | |
2581 | for (k = 0; k < n->count; ++k) | |
2582 | { | |
2583 | n->sections[k] = m->sections[j+k]; | |
2584 | m->sections[j+k] = NULL; | |
2585 | } | |
2586 | n->next = m->next; | |
2587 | m->next = n; | |
2588 | ||
2589 | /* Fix the current segment */ | |
2590 | m->count = j; | |
2591 | } | |
2592 | ||
2593 | return TRUE; | |
2594 | } | |
2595 | ||
25dbc73a AM |
2596 | /* Add extra PPC sections -- Note, for now, make .sbss2 and |
2597 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
2598 | that the linker doesn't crater when trying to make more than | |
2599 | 2 sections. */ | |
e656e369 | 2600 | |
b35d266b | 2601 | static const struct bfd_elf_special_section ppc_elf_special_sections[] = |
7f4d3958 | 2602 | { |
14b57c7c AM |
2603 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2604 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2605 | { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2606 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2607 | { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2608 | { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, | |
2609 | { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 }, | |
2610 | { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2611 | { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2612 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2613 | }; |
2614 | ||
551b43fd AM |
2615 | /* This is what we want for new plt/got. */ |
2616 | static struct bfd_elf_special_section ppc_alt_plt = | |
0112cd26 | 2617 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; |
551b43fd AM |
2618 | |
2619 | static const struct bfd_elf_special_section * | |
2620 | ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
7f4d3958 | 2621 | { |
b35d266b | 2622 | const struct bfd_elf_special_section *ssect; |
551b43fd AM |
2623 | |
2624 | /* See if this is one of the special sections. */ | |
2625 | if (sec->name == NULL) | |
2626 | return NULL; | |
2627 | ||
2628 | ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, | |
2629 | sec->use_rela_p); | |
2630 | if (ssect != NULL) | |
2631 | { | |
2632 | if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) | |
2633 | ssect = &ppc_alt_plt; | |
2634 | return ssect; | |
2635 | } | |
2636 | ||
2637 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
2638 | } | |
25dbc73a AM |
2639 | \f |
2640 | /* Very simple linked list structure for recording apuinfo values. */ | |
2641 | typedef struct apuinfo_list | |
2642 | { | |
2643 | struct apuinfo_list *next; | |
2644 | unsigned long value; | |
2645 | } | |
2646 | apuinfo_list; | |
e656e369 | 2647 | |
25dbc73a | 2648 | static apuinfo_list *head; |
f2faa800 | 2649 | static bfd_boolean apuinfo_set; |
deaaf2f3 | 2650 | |
25dbc73a AM |
2651 | static void |
2652 | apuinfo_list_init (void) | |
2653 | { | |
2654 | head = NULL; | |
f2faa800 | 2655 | apuinfo_set = FALSE; |
25dbc73a | 2656 | } |
9abc968f | 2657 | |
25dbc73a AM |
2658 | static void |
2659 | apuinfo_list_add (unsigned long value) | |
2660 | { | |
2661 | apuinfo_list *entry = head; | |
deaaf2f3 | 2662 | |
25dbc73a AM |
2663 | while (entry != NULL) |
2664 | { | |
2665 | if (entry->value == value) | |
2666 | return; | |
2667 | entry = entry->next; | |
2668 | } | |
b4a38de6 | 2669 | |
25dbc73a AM |
2670 | entry = bfd_malloc (sizeof (* entry)); |
2671 | if (entry == NULL) | |
2672 | return; | |
e656e369 | 2673 | |
25dbc73a AM |
2674 | entry->value = value; |
2675 | entry->next = head; | |
2676 | head = entry; | |
2677 | } | |
9abc968f | 2678 | |
25dbc73a AM |
2679 | static unsigned |
2680 | apuinfo_list_length (void) | |
2681 | { | |
2682 | apuinfo_list *entry; | |
2683 | unsigned long count; | |
9abc968f | 2684 | |
25dbc73a AM |
2685 | for (entry = head, count = 0; |
2686 | entry; | |
2687 | entry = entry->next) | |
2688 | ++ count; | |
e656e369 | 2689 | |
25dbc73a AM |
2690 | return count; |
2691 | } | |
eea6121a | 2692 | |
25dbc73a AM |
2693 | static inline unsigned long |
2694 | apuinfo_list_element (unsigned long number) | |
2695 | { | |
2696 | apuinfo_list * entry; | |
e656e369 | 2697 | |
25dbc73a AM |
2698 | for (entry = head; |
2699 | entry && number --; | |
2700 | entry = entry->next) | |
2701 | ; | |
252b5132 | 2702 | |
25dbc73a AM |
2703 | return entry ? entry->value : 0; |
2704 | } | |
2705 | ||
2706 | static void | |
2707 | apuinfo_list_finish (void) | |
2708 | { | |
2709 | apuinfo_list *entry; | |
2710 | ||
2711 | for (entry = head; entry;) | |
252b5132 | 2712 | { |
25dbc73a AM |
2713 | apuinfo_list *next = entry->next; |
2714 | free (entry); | |
2715 | entry = next; | |
2716 | } | |
9abc968f | 2717 | |
25dbc73a AM |
2718 | head = NULL; |
2719 | } | |
9abc968f | 2720 | |
25dbc73a AM |
2721 | /* Scan the input BFDs and create a linked list of |
2722 | the APUinfo values that will need to be emitted. */ | |
9abc968f | 2723 | |
25dbc73a AM |
2724 | static void |
2725 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
2726 | { | |
2727 | bfd *ibfd; | |
2728 | asection *asec; | |
deddc40b NS |
2729 | char *buffer = NULL; |
2730 | bfd_size_type largest_input_size = 0; | |
25dbc73a | 2731 | unsigned i; |
25dbc73a AM |
2732 | unsigned long length; |
2733 | const char *error_message = NULL; | |
9abc968f | 2734 | |
25dbc73a AM |
2735 | if (link_info == NULL) |
2736 | return; | |
9abc968f | 2737 | |
25dbc73a | 2738 | apuinfo_list_init (); |
252b5132 | 2739 | |
25dbc73a | 2740 | /* Read in the input sections contents. */ |
c72f2fb2 | 2741 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next) |
252b5132 | 2742 | { |
25dbc73a | 2743 | unsigned long datum; |
252b5132 | 2744 | |
25dbc73a AM |
2745 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2746 | if (asec == NULL) | |
2747 | continue; | |
252b5132 | 2748 | |
deddc40b | 2749 | error_message = _("corrupt %s section in %B"); |
25dbc73a | 2750 | length = asec->size; |
deddc40b NS |
2751 | if (length < 20) |
2752 | goto fail; | |
2753 | ||
f2faa800 | 2754 | apuinfo_set = TRUE; |
deddc40b | 2755 | if (largest_input_size < asec->size) |
25dbc73a | 2756 | { |
deddc40b NS |
2757 | if (buffer) |
2758 | free (buffer); | |
2759 | largest_input_size = asec->size; | |
2760 | buffer = bfd_malloc (largest_input_size); | |
2761 | if (!buffer) | |
2762 | return; | |
25dbc73a | 2763 | } |
5b914448 | 2764 | |
25dbc73a | 2765 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
deddc40b | 2766 | || (bfd_bread (buffer, length, ibfd) != length)) |
25dbc73a AM |
2767 | { |
2768 | error_message = _("unable to read in %s section from %B"); | |
2769 | goto fail; | |
2770 | } | |
252b5132 | 2771 | |
25dbc73a AM |
2772 | /* Verify the contents of the header. Note - we have to |
2773 | extract the values this way in order to allow for a | |
2774 | host whose endian-ness is different from the target. */ | |
deddc40b | 2775 | datum = bfd_get_32 (ibfd, buffer); |
25dbc73a AM |
2776 | if (datum != sizeof APUINFO_LABEL) |
2777 | goto fail; | |
252b5132 | 2778 | |
deddc40b | 2779 | datum = bfd_get_32 (ibfd, buffer + 8); |
25dbc73a AM |
2780 | if (datum != 0x2) |
2781 | goto fail; | |
252b5132 | 2782 | |
deddc40b | 2783 | if (strcmp (buffer + 12, APUINFO_LABEL) != 0) |
25dbc73a | 2784 | goto fail; |
252b5132 | 2785 | |
25dbc73a | 2786 | /* Get the number of bytes used for apuinfo entries. */ |
deddc40b | 2787 | datum = bfd_get_32 (ibfd, buffer + 4); |
25dbc73a AM |
2788 | if (datum + 20 != length) |
2789 | goto fail; | |
2790 | ||
25dbc73a AM |
2791 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ |
2792 | for (i = 0; i < datum; i += 4) | |
deddc40b | 2793 | apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i)); |
252b5132 RH |
2794 | } |
2795 | ||
25dbc73a | 2796 | error_message = NULL; |
252b5132 | 2797 | |
f2faa800 | 2798 | if (apuinfo_set) |
deddc40b | 2799 | { |
f2faa800 NS |
2800 | /* Compute the size of the output section. */ |
2801 | unsigned num_entries = apuinfo_list_length (); | |
5b914448 | 2802 | |
deddc40b NS |
2803 | /* Set the output section size, if it exists. */ |
2804 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
f2faa800 | 2805 | |
deddc40b NS |
2806 | if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4)) |
2807 | { | |
2808 | ibfd = abfd; | |
2809 | error_message = _("warning: unable to set size of %s section in %B"); | |
2810 | } | |
2811 | } | |
25dbc73a AM |
2812 | |
2813 | fail: | |
deddc40b NS |
2814 | if (buffer) |
2815 | free (buffer); | |
25dbc73a AM |
2816 | |
2817 | if (error_message) | |
2818 | (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME); | |
2819 | } | |
252b5132 | 2820 | |
25dbc73a AM |
2821 | /* Prevent the output section from accumulating the input sections' |
2822 | contents. We have already stored this in our linked list structure. */ | |
252b5132 | 2823 | |
25dbc73a AM |
2824 | static bfd_boolean |
2825 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
c7b8f16e | 2826 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
25dbc73a AM |
2827 | asection *asec, |
2828 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
2829 | { | |
f2faa800 | 2830 | return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; |
252b5132 RH |
2831 | } |
2832 | ||
25dbc73a AM |
2833 | /* Finally we can generate the output section. */ |
2834 | ||
2835 | static void | |
2836 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
7619e7c7 | 2837 | { |
25dbc73a AM |
2838 | bfd_byte *buffer; |
2839 | asection *asec; | |
2840 | unsigned i; | |
2841 | unsigned num_entries; | |
2842 | bfd_size_type length; | |
7619e7c7 | 2843 | |
25dbc73a AM |
2844 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2845 | if (asec == NULL) | |
2846 | return; | |
2847 | ||
f2faa800 | 2848 | if (!apuinfo_set) |
25dbc73a AM |
2849 | return; |
2850 | ||
2851 | length = asec->size; | |
2852 | if (length < 20) | |
2853 | return; | |
2854 | ||
2855 | buffer = bfd_malloc (length); | |
2856 | if (buffer == NULL) | |
7619e7c7 | 2857 | { |
25dbc73a AM |
2858 | (*_bfd_error_handler) |
2859 | (_("failed to allocate space for new APUinfo section.")); | |
2860 | return; | |
7619e7c7 | 2861 | } |
7619e7c7 | 2862 | |
25dbc73a AM |
2863 | /* Create the apuinfo header. */ |
2864 | num_entries = apuinfo_list_length (); | |
2865 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
2866 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); | |
2867 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
2868 | strcpy ((char *) buffer + 12, APUINFO_LABEL); | |
feee612b | 2869 | |
25dbc73a AM |
2870 | length = 20; |
2871 | for (i = 0; i < num_entries; i++) | |
feee612b | 2872 | { |
25dbc73a AM |
2873 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); |
2874 | length += 4; | |
feee612b | 2875 | } |
feee612b | 2876 | |
25dbc73a AM |
2877 | if (length != asec->size) |
2878 | (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); | |
252b5132 | 2879 | |
25dbc73a AM |
2880 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
2881 | (*_bfd_error_handler) (_("failed to install new APUinfo section.")); | |
252b5132 | 2882 | |
25dbc73a AM |
2883 | free (buffer); |
2884 | ||
2885 | apuinfo_list_finish (); | |
252b5132 | 2886 | } |
25dbc73a | 2887 | \f |
7382d32a | 2888 | static bfd_boolean |
c6dd29ce | 2889 | is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) |
7382d32a | 2890 | { |
c6dd29ce | 2891 | bfd_byte buf[GLINK_ENTRY_SIZE]; |
7382d32a | 2892 | |
c6dd29ce | 2893 | if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE)) |
7382d32a AM |
2894 | return FALSE; |
2895 | ||
c6dd29ce AM |
2896 | return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11 |
2897 | && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 | |
2898 | && bfd_get_32 (abfd, buf + 8) == MTCTR_11 | |
2899 | && bfd_get_32 (abfd, buf + 12) == BCTR); | |
7382d32a AM |
2900 | } |
2901 | ||
468392fb AM |
2902 | static bfd_boolean |
2903 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
2904 | { | |
2905 | bfd_vma vma = *(bfd_vma *) ptr; | |
2906 | return ((section->flags & SEC_ALLOC) != 0 | |
2907 | && section->vma <= vma | |
2908 | && vma < section->vma + section->size); | |
2909 | } | |
2910 | ||
2911 | static long | |
2912 | ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, | |
2913 | long dynsymcount, asymbol **dynsyms, | |
2914 | asymbol **ret) | |
2915 | { | |
2916 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
2917 | asection *plt, *relplt, *dynamic, *glink; | |
2918 | bfd_vma glink_vma = 0; | |
2919 | bfd_vma resolv_vma = 0; | |
2920 | bfd_vma stub_vma; | |
2921 | asymbol *s; | |
2922 | arelent *p; | |
2923 | long count, i; | |
2924 | size_t size; | |
2925 | char *names; | |
2926 | bfd_byte buf[4]; | |
2927 | ||
2928 | *ret = NULL; | |
2929 | ||
2930 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) | |
2931 | return 0; | |
2932 | ||
2933 | if (dynsymcount <= 0) | |
2934 | return 0; | |
2935 | ||
2936 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
2937 | if (relplt == NULL) | |
2938 | return 0; | |
2939 | ||
2940 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
2941 | if (plt == NULL) | |
2942 | return 0; | |
2943 | ||
2944 | /* Call common code to handle old-style executable PLTs. */ | |
2945 | if (elf_section_flags (plt) & SHF_EXECINSTR) | |
2946 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
2947 | dynsymcount, dynsyms, ret); | |
2948 | ||
2949 | /* If this object was prelinked, the prelinker stored the address | |
2950 | of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ | |
2951 | dynamic = bfd_get_section_by_name (abfd, ".dynamic"); | |
2952 | if (dynamic != NULL) | |
2953 | { | |
2954 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
2955 | size_t extdynsize; | |
2956 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
2957 | ||
2958 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
2959 | return -1; | |
2960 | ||
2961 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
2962 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
2963 | ||
2964 | extdyn = dynbuf; | |
2965 | extdynend = extdyn + dynamic->size; | |
2966 | for (; extdyn < extdynend; extdyn += extdynsize) | |
2967 | { | |
2968 | Elf_Internal_Dyn dyn; | |
2969 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
2970 | ||
2971 | if (dyn.d_tag == DT_NULL) | |
2972 | break; | |
2973 | ||
2974 | if (dyn.d_tag == DT_PPC_GOT) | |
2975 | { | |
2976 | unsigned int g_o_t = dyn.d_un.d_val; | |
2977 | asection *got = bfd_get_section_by_name (abfd, ".got"); | |
2978 | if (got != NULL | |
2979 | && bfd_get_section_contents (abfd, got, buf, | |
2980 | g_o_t - got->vma + 4, 4)) | |
2981 | glink_vma = bfd_get_32 (abfd, buf); | |
2982 | break; | |
2983 | } | |
2984 | } | |
2985 | free (dynbuf); | |
2986 | } | |
2987 | ||
2988 | /* Otherwise we read the first plt entry. */ | |
2989 | if (glink_vma == 0) | |
2990 | { | |
2991 | if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) | |
2992 | glink_vma = bfd_get_32 (abfd, buf); | |
2993 | } | |
2994 | ||
2995 | if (glink_vma == 0) | |
2996 | return 0; | |
2997 | ||
2998 | /* The .glink section usually does not survive the final | |
2999 | link; search for the section (usually .text) where the | |
3000 | glink stubs now reside. */ | |
3001 | glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); | |
3002 | if (glink == NULL) | |
3003 | return 0; | |
3004 | ||
3005 | /* Determine glink PLT resolver by reading the relative branch | |
3006 | from the first glink stub. */ | |
3007 | if (bfd_get_section_contents (abfd, glink, buf, | |
3008 | glink_vma - glink->vma, 4)) | |
3009 | { | |
3010 | unsigned int insn = bfd_get_32 (abfd, buf); | |
3011 | ||
3012 | /* The first glink stub may either branch to the resolver ... */ | |
3013 | insn ^= B; | |
3014 | if ((insn & ~0x3fffffc) == 0) | |
3015 | resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; | |
3016 | ||
3017 | /* ... or fall through a bunch of NOPs. */ | |
3018 | else if ((insn ^ B ^ NOP) == 0) | |
3019 | for (i = 4; | |
3020 | bfd_get_section_contents (abfd, glink, buf, | |
3021 | glink_vma - glink->vma + i, 4); | |
3022 | i += 4) | |
3023 | if (bfd_get_32 (abfd, buf) != NOP) | |
3024 | { | |
3025 | resolv_vma = glink_vma + i; | |
3026 | break; | |
3027 | } | |
3028 | } | |
3029 | ||
7382d32a | 3030 | count = relplt->size / sizeof (Elf32_External_Rela); |
7382d32a AM |
3031 | /* If the stubs are those for -shared/-pie then we might have |
3032 | multiple stubs for each plt entry. If that is the case then | |
3033 | there is no way to associate stubs with their plt entries short | |
3034 | of figuring out the GOT pointer value used in the stub. */ | |
c6dd29ce AM |
3035 | if (!is_nonpic_glink_stub (abfd, glink, |
3036 | glink_vma - GLINK_ENTRY_SIZE - glink->vma)) | |
7382d32a AM |
3037 | return 0; |
3038 | ||
468392fb AM |
3039 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
3040 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) | |
3041 | return -1; | |
3042 | ||
468392fb AM |
3043 | size = count * sizeof (asymbol); |
3044 | p = relplt->relocation; | |
3045 | for (i = 0; i < count; i++, p++) | |
e054468f AM |
3046 | { |
3047 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
3048 | if (p->addend != 0) | |
3049 | size += sizeof ("+0x") - 1 + 8; | |
3050 | } | |
468392fb AM |
3051 | |
3052 | size += sizeof (asymbol) + sizeof ("__glink"); | |
3053 | ||
3054 | if (resolv_vma) | |
3055 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
3056 | ||
3057 | s = *ret = bfd_malloc (size); | |
3058 | if (s == NULL) | |
3059 | return -1; | |
3060 | ||
1079403c | 3061 | stub_vma = glink_vma; |
468392fb | 3062 | names = (char *) (s + count + 1 + (resolv_vma != 0)); |
1079403c AM |
3063 | p = relplt->relocation + count - 1; |
3064 | for (i = 0; i < count; i++) | |
468392fb AM |
3065 | { |
3066 | size_t len; | |
3067 | ||
3068 | *s = **p->sym_ptr_ptr; | |
3069 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
3070 | we are defining a symbol, ensure one of them is set. */ | |
3071 | if ((s->flags & BSF_LOCAL) == 0) | |
3072 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 3073 | s->flags |= BSF_SYNTHETIC; |
468392fb | 3074 | s->section = glink; |
1079403c AM |
3075 | stub_vma -= 16; |
3076 | if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0) | |
3077 | stub_vma -= 32; | |
468392fb AM |
3078 | s->value = stub_vma - glink->vma; |
3079 | s->name = names; | |
3080 | s->udata.p = NULL; | |
3081 | len = strlen ((*p->sym_ptr_ptr)->name); | |
3082 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
3083 | names += len; | |
e054468f AM |
3084 | if (p->addend != 0) |
3085 | { | |
3086 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
3087 | names += sizeof ("+0x") - 1; | |
3088 | bfd_sprintf_vma (abfd, names, p->addend); | |
3089 | names += strlen (names); | |
3090 | } | |
468392fb AM |
3091 | memcpy (names, "@plt", sizeof ("@plt")); |
3092 | names += sizeof ("@plt"); | |
3093 | ++s; | |
1079403c | 3094 | --p; |
468392fb AM |
3095 | } |
3096 | ||
3097 | /* Add a symbol at the start of the glink branch table. */ | |
86a4952b | 3098 | memset (s, 0, sizeof *s); |
468392fb | 3099 | s->the_bfd = abfd; |
6ba2a415 | 3100 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3101 | s->section = glink; |
3102 | s->value = glink_vma - glink->vma; | |
3103 | s->name = names; | |
3104 | memcpy (names, "__glink", sizeof ("__glink")); | |
3105 | names += sizeof ("__glink"); | |
3106 | s++; | |
3107 | count++; | |
3108 | ||
3109 | if (resolv_vma) | |
3110 | { | |
3111 | /* Add a symbol for the glink PLT resolver. */ | |
86a4952b | 3112 | memset (s, 0, sizeof *s); |
468392fb | 3113 | s->the_bfd = abfd; |
6ba2a415 | 3114 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3115 | s->section = glink; |
3116 | s->value = resolv_vma - glink->vma; | |
3117 | s->name = names; | |
3118 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
3119 | names += sizeof ("__glink_PLTresolve"); | |
3120 | s++; | |
3121 | count++; | |
3122 | } | |
3123 | ||
3124 | return count; | |
3125 | } | |
3126 | \f | |
25dbc73a AM |
3127 | /* The following functions are specific to the ELF linker, while |
3128 | functions above are used generally. They appear in this file more | |
3129 | or less in the order in which they are called. eg. | |
3130 | ppc_elf_check_relocs is called early in the link process, | |
3131 | ppc_elf_finish_dynamic_sections is one of the last functions | |
3132 | called. */ | |
252b5132 | 3133 | |
a6aa5195 | 3134 | /* Track PLT entries needed for a given symbol. We might need more |
a877a2b6 | 3135 | than one glink entry per symbol when generating a pic binary. */ |
a6aa5195 AM |
3136 | struct plt_entry |
3137 | { | |
3138 | struct plt_entry *next; | |
3139 | ||
3140 | /* -fPIC uses multiple GOT sections, one per file, called ".got2". | |
3141 | This field stores the offset into .got2 used to initialise the | |
a877a2b6 AM |
3142 | GOT pointer reg. It will always be at least 32768. (Current |
3143 | gcc always uses an offset of 32768, but ld -r will pack .got2 | |
3144 | sections together resulting in larger offsets). */ | |
a6aa5195 AM |
3145 | bfd_vma addend; |
3146 | ||
3147 | /* The .got2 section. */ | |
3148 | asection *sec; | |
3149 | ||
3150 | /* PLT refcount or offset. */ | |
3151 | union | |
3152 | { | |
3153 | bfd_signed_vma refcount; | |
3154 | bfd_vma offset; | |
3155 | } plt; | |
3156 | ||
3157 | /* .glink stub offset. */ | |
3158 | bfd_vma glink_offset; | |
3159 | }; | |
3160 | ||
1d483afe | 3161 | /* Of those relocs that might be copied as dynamic relocs, this function |
25dbc73a AM |
3162 | selects those that must be copied when linking a shared library, |
3163 | even when the symbol is local. */ | |
252b5132 | 3164 | |
1d483afe AM |
3165 | static int |
3166 | must_be_dyn_reloc (struct bfd_link_info *info, | |
3167 | enum elf_ppc_reloc_type r_type) | |
3168 | { | |
3169 | switch (r_type) | |
3170 | { | |
3171 | default: | |
3172 | return 1; | |
3173 | ||
3174 | case R_PPC_REL24: | |
3175 | case R_PPC_REL14: | |
3176 | case R_PPC_REL14_BRTAKEN: | |
3177 | case R_PPC_REL14_BRNTAKEN: | |
3178 | case R_PPC_REL32: | |
3179 | return 0; | |
3180 | ||
3181 | case R_PPC_TPREL32: | |
3182 | case R_PPC_TPREL16: | |
3183 | case R_PPC_TPREL16_LO: | |
3184 | case R_PPC_TPREL16_HI: | |
3185 | case R_PPC_TPREL16_HA: | |
0e1862bb | 3186 | return !bfd_link_executable (info); |
1d483afe AM |
3187 | } |
3188 | } | |
252b5132 | 3189 | |
25dbc73a AM |
3190 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3191 | copying dynamic variables from a shared lib into an app's dynbss | |
3192 | section, and instead use a dynamic relocation to point into the | |
3193 | shared lib. */ | |
3194 | #define ELIMINATE_COPY_RELOCS 1 | |
252b5132 | 3195 | |
f95f8542 AM |
3196 | /* Used to track dynamic relocations for local symbols. */ |
3197 | struct ppc_dyn_relocs | |
3198 | { | |
3199 | struct ppc_dyn_relocs *next; | |
3200 | ||
3201 | /* The input section of the reloc. */ | |
3202 | asection *sec; | |
3203 | ||
3204 | /* Total number of relocs copied for the input section. */ | |
3205 | unsigned int count : 31; | |
3206 | ||
3207 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
3208 | unsigned int ifunc : 1; | |
3209 | }; | |
3210 | ||
25dbc73a | 3211 | /* PPC ELF linker hash entry. */ |
252b5132 | 3212 | |
25dbc73a AM |
3213 | struct ppc_elf_link_hash_entry |
3214 | { | |
3215 | struct elf_link_hash_entry elf; | |
252b5132 | 3216 | |
25dbc73a AM |
3217 | /* If this symbol is used in the linker created sections, the processor |
3218 | specific backend uses this field to map the field into the offset | |
3219 | from the beginning of the section. */ | |
3220 | elf_linker_section_pointers_t *linker_section_pointer; | |
252b5132 | 3221 | |
25dbc73a | 3222 | /* Track dynamic relocs copied for this symbol. */ |
6061a67d | 3223 | struct elf_dyn_relocs *dyn_relocs; |
252b5132 | 3224 | |
25dbc73a AM |
3225 | /* Contexts in which symbol is used in the GOT (or TOC). |
3226 | TLS_GD .. TLS_TLS bits are or'd into the mask as the | |
3227 | corresponding relocs are encountered during check_relocs. | |
3228 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3229 | indicate the corresponding GOT entry type is not needed. */ | |
3230 | #define TLS_GD 1 /* GD reloc. */ | |
3231 | #define TLS_LD 2 /* LD reloc. */ | |
3232 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3233 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3234 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3235 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
e054468f | 3236 | #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */ |
25dbc73a | 3237 | char tls_mask; |
4dc4a9a5 DJ |
3238 | |
3239 | /* Nonzero if we have seen a small data relocation referring to this | |
3240 | symbol. */ | |
d3e454b9 AM |
3241 | unsigned char has_sda_refs : 1; |
3242 | ||
3243 | /* Flag use of given relocations. */ | |
3244 | unsigned char has_addr16_ha : 1; | |
3245 | unsigned char has_addr16_lo : 1; | |
25dbc73a | 3246 | }; |
252b5132 | 3247 | |
25dbc73a AM |
3248 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) |
3249 | ||
3250 | /* PPC ELF linker hash table. */ | |
3251 | ||
3252 | struct ppc_elf_link_hash_table | |
3253 | { | |
3254 | struct elf_link_hash_table elf; | |
3255 | ||
5446cbdf AM |
3256 | /* Various options passed from the linker. */ |
3257 | struct ppc_elf_params *params; | |
3258 | ||
25dbc73a AM |
3259 | /* Short-cuts to get to dynamic linker sections. */ |
3260 | asection *got; | |
3261 | asection *relgot; | |
d7128ce4 | 3262 | asection *glink; |
25dbc73a AM |
3263 | asection *plt; |
3264 | asection *relplt; | |
e054468f AM |
3265 | asection *iplt; |
3266 | asection *reliplt; | |
25dbc73a AM |
3267 | asection *dynbss; |
3268 | asection *relbss; | |
3269 | asection *dynsbss; | |
3270 | asection *relsbss; | |
c9a2f333 | 3271 | elf_linker_section_t sdata[2]; |
25dbc73a | 3272 | asection *sbss; |
6177242a | 3273 | asection *glink_eh_frame; |
25dbc73a | 3274 | |
016687f8 AM |
3275 | /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ |
3276 | asection *srelplt2; | |
3277 | ||
3278 | /* The .got.plt section (VxWorks only)*/ | |
3279 | asection *sgotplt; | |
3280 | ||
1d483afe | 3281 | /* Shortcut to __tls_get_addr. */ |
25dbc73a | 3282 | struct elf_link_hash_entry *tls_get_addr; |
252b5132 | 3283 | |
016687f8 AM |
3284 | /* The bfd that forced an old-style PLT. */ |
3285 | bfd *old_bfd; | |
5b914448 | 3286 | |
25dbc73a AM |
3287 | /* TLS local dynamic got entry handling. */ |
3288 | union { | |
3289 | bfd_signed_vma refcount; | |
3290 | bfd_vma offset; | |
3291 | } tlsld_got; | |
252b5132 | 3292 | |
c6dd29ce | 3293 | /* Offset of branch table to PltResolve function in glink. */ |
d7128ce4 AM |
3294 | bfd_vma glink_pltresolve; |
3295 | ||
3b36f7e6 AM |
3296 | /* Size of reserved GOT entries. */ |
3297 | unsigned int got_header_size; | |
3298 | /* Non-zero if allocating the header left a gap. */ | |
3299 | unsigned int got_gap; | |
3300 | ||
4a3dc543 RS |
3301 | /* The type of PLT we have chosen to use. */ |
3302 | enum ppc_elf_plt_type plt_type; | |
3303 | ||
9d8504b1 | 3304 | /* True if the target system is VxWorks. */ |
016687f8 | 3305 | unsigned int is_vxworks:1; |
9d8504b1 PB |
3306 | |
3307 | /* The size of PLT entries. */ | |
3308 | int plt_entry_size; | |
3309 | /* The distance between adjacent PLT slots. */ | |
3310 | int plt_slot_size; | |
3311 | /* The size of the first PLT entry. */ | |
3312 | int plt_initial_entry_size; | |
016687f8 | 3313 | |
87d72d41 AM |
3314 | /* Small local sym cache. */ |
3315 | struct sym_cache sym_cache; | |
25dbc73a | 3316 | }; |
252b5132 | 3317 | |
94caa966 AM |
3318 | /* Rename some of the generic section flags to better document how they |
3319 | are used for ppc32. The flags are only valid for ppc32 elf objects. */ | |
3320 | ||
3321 | /* Nonzero if this section has TLS related relocations. */ | |
3322 | #define has_tls_reloc sec_flg0 | |
3323 | ||
3324 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
3325 | #define has_tls_get_addr_call sec_flg1 | |
3326 | ||
25dbc73a | 3327 | /* Get the PPC ELF linker hash table from a link_info structure. */ |
252b5132 | 3328 | |
25dbc73a | 3329 | #define ppc_elf_hash_table(p) \ |
4dfe6ac6 NC |
3330 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
3331 | == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 3332 | |
25dbc73a | 3333 | /* Create an entry in a PPC ELF linker hash table. */ |
252b5132 | 3334 | |
25dbc73a AM |
3335 | static struct bfd_hash_entry * |
3336 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3337 | struct bfd_hash_table *table, | |
3338 | const char *string) | |
252b5132 | 3339 | { |
25dbc73a AM |
3340 | /* Allocate the structure if it has not already been allocated by a |
3341 | subclass. */ | |
3342 | if (entry == NULL) | |
3343 | { | |
3344 | entry = bfd_hash_allocate (table, | |
3345 | sizeof (struct ppc_elf_link_hash_entry)); | |
3346 | if (entry == NULL) | |
3347 | return entry; | |
3348 | } | |
252b5132 | 3349 | |
25dbc73a AM |
3350 | /* Call the allocation method of the superclass. */ |
3351 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3352 | if (entry != NULL) | |
3353 | { | |
3354 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; | |
3355 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
3356 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
5240d94d | 3357 | ppc_elf_hash_entry (entry)->has_sda_refs = 0; |
25dbc73a | 3358 | } |
252b5132 | 3359 | |
25dbc73a | 3360 | return entry; |
252b5132 | 3361 | } |
3dab13f6 | 3362 | |
25dbc73a | 3363 | /* Create a PPC ELF linker hash table. */ |
3dab13f6 | 3364 | |
25dbc73a AM |
3365 | static struct bfd_link_hash_table * |
3366 | ppc_elf_link_hash_table_create (bfd *abfd) | |
3dab13f6 | 3367 | { |
25dbc73a | 3368 | struct ppc_elf_link_hash_table *ret; |
76e7a751 AM |
3369 | static struct ppc_elf_params default_params |
3370 | = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0 }; | |
3dab13f6 | 3371 | |
25dbc73a AM |
3372 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
3373 | if (ret == NULL) | |
3374 | return NULL; | |
3dab13f6 | 3375 | |
66eb6687 AM |
3376 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, |
3377 | ppc_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
3378 | sizeof (struct ppc_elf_link_hash_entry), |
3379 | PPC32_ELF_DATA)) | |
3dab13f6 | 3380 | { |
25dbc73a AM |
3381 | free (ret); |
3382 | return NULL; | |
3383 | } | |
58111eb7 | 3384 | |
a6aa5195 AM |
3385 | ret->elf.init_plt_refcount.refcount = 0; |
3386 | ret->elf.init_plt_refcount.glist = NULL; | |
3387 | ret->elf.init_plt_offset.offset = 0; | |
3388 | ret->elf.init_plt_offset.glist = NULL; | |
3389 | ||
db434ba0 AM |
3390 | ret->params = &default_params; |
3391 | ||
c9a2f333 AM |
3392 | ret->sdata[0].name = ".sdata"; |
3393 | ret->sdata[0].sym_name = "_SDA_BASE_"; | |
3394 | ret->sdata[0].bss_name = ".sbss"; | |
3395 | ||
3396 | ret->sdata[1].name = ".sdata2"; | |
3397 | ret->sdata[1].sym_name = "_SDA2_BASE_"; | |
3398 | ret->sdata[1].bss_name = ".sbss2"; | |
3399 | ||
9d8504b1 PB |
3400 | ret->plt_entry_size = 12; |
3401 | ret->plt_slot_size = 8; | |
3402 | ret->plt_initial_entry_size = 72; | |
9d8504b1 | 3403 | |
25dbc73a AM |
3404 | return &ret->elf.root; |
3405 | } | |
3dab13f6 | 3406 | |
5446cbdf AM |
3407 | /* Hook linker params into hash table. */ |
3408 | ||
3409 | void | |
3410 | ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params) | |
3411 | { | |
3412 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3413 | ||
3414 | if (htab) | |
3415 | htab->params = params; | |
76e7a751 | 3416 | params->pagesize_p2 = bfd_log2 (params->pagesize); |
5446cbdf AM |
3417 | } |
3418 | ||
9d8504b1 | 3419 | /* Create .got and the related sections. */ |
3dab13f6 | 3420 | |
25dbc73a AM |
3421 | static bfd_boolean |
3422 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) | |
3423 | { | |
3424 | struct ppc_elf_link_hash_table *htab; | |
3425 | asection *s; | |
3426 | flagword flags; | |
3dab13f6 | 3427 | |
25dbc73a AM |
3428 | if (!_bfd_elf_create_got_section (abfd, info)) |
3429 | return FALSE; | |
3dab13f6 | 3430 | |
25dbc73a | 3431 | htab = ppc_elf_hash_table (info); |
3d4d4302 | 3432 | htab->got = s = bfd_get_linker_section (abfd, ".got"); |
25dbc73a AM |
3433 | if (s == NULL) |
3434 | abort (); | |
3dab13f6 | 3435 | |
9d8504b1 PB |
3436 | if (htab->is_vxworks) |
3437 | { | |
3d4d4302 | 3438 | htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt"); |
9d8504b1 PB |
3439 | if (!htab->sgotplt) |
3440 | abort (); | |
3441 | } | |
3442 | else | |
3443 | { | |
3444 | /* The powerpc .got has a blrl instruction in it. Mark it | |
3445 | executable. */ | |
3446 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | |
3447 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3448 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3449 | return FALSE; | |
3450 | } | |
3dab13f6 | 3451 | |
3d4d4302 | 3452 | htab->relgot = bfd_get_linker_section (abfd, ".rela.got"); |
64e77c6d L |
3453 | if (!htab->relgot) |
3454 | abort (); | |
3dab13f6 | 3455 | |
25dbc73a AM |
3456 | return TRUE; |
3457 | } | |
3dab13f6 | 3458 | |
93d1b056 AM |
3459 | /* Create a special linker section, used for R_PPC_EMB_SDAI16 and |
3460 | R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata | |
3461 | and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */ | |
3462 | ||
3463 | static bfd_boolean | |
3464 | ppc_elf_create_linker_section (bfd *abfd, | |
3465 | struct bfd_link_info *info, | |
3466 | flagword flags, | |
3467 | elf_linker_section_t *lsect) | |
3468 | { | |
3469 | asection *s; | |
3470 | ||
3471 | flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3472 | | SEC_LINKER_CREATED); | |
3473 | ||
3474 | s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags); | |
3475 | if (s == NULL) | |
3476 | return FALSE; | |
3477 | lsect->section = s; | |
3478 | ||
3479 | /* Define the sym on the first section of this name. */ | |
3480 | s = bfd_get_section_by_name (abfd, lsect->name); | |
3481 | ||
3482 | lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name); | |
3483 | if (lsect->sym == NULL) | |
3484 | return FALSE; | |
3485 | lsect->sym->root.u.def.value = 0x8000; | |
3486 | return TRUE; | |
3487 | } | |
3488 | ||
e054468f AM |
3489 | static bfd_boolean |
3490 | ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info) | |
3491 | { | |
3492 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3493 | asection *s; | |
3494 | flagword flags; | |
3495 | ||
3496 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS | |
3497 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3498 | s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags); | |
3499 | htab->glink = s; | |
3500 | if (s == NULL | |
5446cbdf AM |
3501 | || !bfd_set_section_alignment (abfd, s, |
3502 | htab->params->ppc476_workaround ? 6 : 4)) | |
e054468f AM |
3503 | return FALSE; |
3504 | ||
6177242a AM |
3505 | if (!info->no_ld_generated_unwind_info) |
3506 | { | |
3507 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3508 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3509 | s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags); | |
3510 | htab->glink_eh_frame = s; | |
3511 | if (s == NULL | |
3512 | || !bfd_set_section_alignment (abfd, s, 2)) | |
3513 | return FALSE; | |
3514 | } | |
3515 | ||
e054468f AM |
3516 | flags = SEC_ALLOC | SEC_LINKER_CREATED; |
3517 | s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags); | |
3518 | htab->iplt = s; | |
3519 | if (s == NULL | |
3520 | || !bfd_set_section_alignment (abfd, s, 4)) | |
3521 | return FALSE; | |
3522 | ||
3523 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3524 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3525 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags); |
e054468f AM |
3526 | htab->reliplt = s; |
3527 | if (s == NULL | |
3528 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
3529 | return FALSE; | |
93d1b056 AM |
3530 | |
3531 | if (!ppc_elf_create_linker_section (abfd, info, 0, | |
3532 | &htab->sdata[0])) | |
3533 | return FALSE; | |
3534 | ||
3535 | if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY, | |
3536 | &htab->sdata[1])) | |
3537 | return FALSE; | |
3538 | ||
e054468f AM |
3539 | return TRUE; |
3540 | } | |
3541 | ||
25dbc73a AM |
3542 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
3543 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
3544 | to create .dynbss and .rela.bss). */ | |
3dab13f6 | 3545 | |
25dbc73a AM |
3546 | static bfd_boolean |
3547 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3548 | { | |
3549 | struct ppc_elf_link_hash_table *htab; | |
3550 | asection *s; | |
3551 | flagword flags; | |
3dab13f6 | 3552 | |
25dbc73a | 3553 | htab = ppc_elf_hash_table (info); |
3dab13f6 | 3554 | |
25dbc73a AM |
3555 | if (htab->got == NULL |
3556 | && !ppc_elf_create_got (abfd, info)) | |
3dab13f6 AM |
3557 | return FALSE; |
3558 | ||
25dbc73a AM |
3559 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
3560 | return FALSE; | |
3dab13f6 | 3561 | |
e054468f AM |
3562 | if (htab->glink == NULL |
3563 | && !ppc_elf_create_glink (abfd, info)) | |
d7128ce4 | 3564 | return FALSE; |
3dab13f6 | 3565 | |
3d4d4302 | 3566 | htab->dynbss = bfd_get_linker_section (abfd, ".dynbss"); |
14b2f831 AM |
3567 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", |
3568 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3b36f7e6 | 3569 | htab->dynsbss = s; |
3496cb2a | 3570 | if (s == NULL) |
25dbc73a | 3571 | return FALSE; |
3dab13f6 | 3572 | |
0e1862bb | 3573 | if (! bfd_link_pic (info)) |
25dbc73a | 3574 | { |
3d4d4302 | 3575 | htab->relbss = bfd_get_linker_section (abfd, ".rela.bss"); |
e054468f AM |
3576 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS |
3577 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3578 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags); |
3b36f7e6 | 3579 | htab->relsbss = s; |
25dbc73a | 3580 | if (s == NULL |
25dbc73a AM |
3581 | || ! bfd_set_section_alignment (abfd, s, 2)) |
3582 | return FALSE; | |
3583 | } | |
3dab13f6 | 3584 | |
711de32c RS |
3585 | if (htab->is_vxworks |
3586 | && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
3587 | return FALSE; | |
9d8504b1 | 3588 | |
3d4d4302 AM |
3589 | htab->relplt = bfd_get_linker_section (abfd, ".rela.plt"); |
3590 | htab->plt = s = bfd_get_linker_section (abfd, ".plt"); | |
25dbc73a AM |
3591 | if (s == NULL) |
3592 | abort (); | |
3dab13f6 | 3593 | |
3b36f7e6 | 3594 | flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; |
4a3dc543 RS |
3595 | if (htab->plt_type == PLT_VXWORKS) |
3596 | /* The VxWorks PLT is a loaded section with contents. */ | |
3597 | flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; | |
25dbc73a AM |
3598 | return bfd_set_section_flags (abfd, s, flags); |
3599 | } | |
3dab13f6 | 3600 | |
25dbc73a | 3601 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
58111eb7 | 3602 | |
25dbc73a | 3603 | static void |
fcfa13d2 | 3604 | ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
25dbc73a AM |
3605 | struct elf_link_hash_entry *dir, |
3606 | struct elf_link_hash_entry *ind) | |
3607 | { | |
3608 | struct ppc_elf_link_hash_entry *edir, *eind; | |
3dab13f6 | 3609 | |
25dbc73a AM |
3610 | edir = (struct ppc_elf_link_hash_entry *) dir; |
3611 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
3dab13f6 | 3612 | |
c79d6685 AM |
3613 | edir->tls_mask |= eind->tls_mask; |
3614 | edir->has_sda_refs |= eind->has_sda_refs; | |
3615 | ||
3616 | /* If called to transfer flags for a weakdef during processing | |
3617 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
3618 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3619 | if (!(ELIMINATE_COPY_RELOCS | |
3620 | && eind->elf.root.type != bfd_link_hash_indirect | |
3621 | && edir->elf.dynamic_adjusted)) | |
3622 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
3623 | ||
3624 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
3625 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3626 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3627 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
3628 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
3629 | ||
25dbc73a AM |
3630 | if (eind->dyn_relocs != NULL) |
3631 | { | |
3632 | if (edir->dyn_relocs != NULL) | |
3dab13f6 | 3633 | { |
6061a67d AM |
3634 | struct elf_dyn_relocs **pp; |
3635 | struct elf_dyn_relocs *p; | |
3dab13f6 | 3636 | |
fcfa13d2 | 3637 | /* Add reloc counts against the indirect sym to the direct sym |
25dbc73a AM |
3638 | list. Merge any entries against the same section. */ |
3639 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3dab13f6 | 3640 | { |
6061a67d | 3641 | struct elf_dyn_relocs *q; |
25dbc73a AM |
3642 | |
3643 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3644 | if (q->sec == p->sec) | |
3645 | { | |
3646 | q->pc_count += p->pc_count; | |
3647 | q->count += p->count; | |
3648 | *pp = p->next; | |
3649 | break; | |
3650 | } | |
3651 | if (q == NULL) | |
3652 | pp = &p->next; | |
3dab13f6 | 3653 | } |
25dbc73a | 3654 | *pp = edir->dyn_relocs; |
3dab13f6 | 3655 | } |
25dbc73a AM |
3656 | |
3657 | edir->dyn_relocs = eind->dyn_relocs; | |
3658 | eind->dyn_relocs = NULL; | |
3dab13f6 | 3659 | } |
3dab13f6 | 3660 | |
68ba6d40 AM |
3661 | /* If we were called to copy over info for a weak sym, that's all. |
3662 | You might think dyn_relocs need not be copied over; After all, | |
3663 | both syms will be dynamic or both non-dynamic so we're just | |
68ffbac6 | 3664 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
68ba6d40 AM |
3665 | code in ppc_elf_adjust_dynamic_symbol needs to check for |
3666 | dyn_relocs in read-only sections, and it does so on what is the | |
3667 | DIR sym here. */ | |
3668 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3669 | return; | |
3670 | ||
a6aa5195 AM |
3671 | /* Copy over the GOT refcount entries that we may have already seen to |
3672 | the symbol which just became indirect. */ | |
fcfa13d2 AM |
3673 | edir->elf.got.refcount += eind->elf.got.refcount; |
3674 | eind->elf.got.refcount = 0; | |
a6aa5195 AM |
3675 | |
3676 | /* And plt entries. */ | |
3677 | if (eind->elf.plt.plist != NULL) | |
3678 | { | |
3679 | if (edir->elf.plt.plist != NULL) | |
3680 | { | |
3681 | struct plt_entry **entp; | |
3682 | struct plt_entry *ent; | |
3683 | ||
3684 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3685 | { | |
3686 | struct plt_entry *dent; | |
3687 | ||
3688 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3689 | if (dent->sec == ent->sec && dent->addend == ent->addend) | |
3690 | { | |
3691 | dent->plt.refcount += ent->plt.refcount; | |
3692 | *entp = ent->next; | |
3693 | break; | |
3694 | } | |
3695 | if (dent == NULL) | |
3696 | entp = &ent->next; | |
3697 | } | |
3698 | *entp = edir->elf.plt.plist; | |
3699 | } | |
3700 | ||
3701 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3702 | eind->elf.plt.plist = NULL; | |
3703 | } | |
3704 | ||
fcfa13d2 | 3705 | if (eind->elf.dynindx != -1) |
25dbc73a | 3706 | { |
fcfa13d2 AM |
3707 | if (edir->elf.dynindx != -1) |
3708 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3709 | edir->elf.dynstr_index); | |
a6aa5195 AM |
3710 | edir->elf.dynindx = eind->elf.dynindx; |
3711 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3712 | eind->elf.dynindx = -1; | |
3713 | eind->elf.dynstr_index = 0; | |
25dbc73a | 3714 | } |
25dbc73a | 3715 | } |
3dab13f6 | 3716 | |
25dbc73a AM |
3717 | /* Hook called by the linker routine which adds symbols from an object |
3718 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
58111eb7 | 3719 | |
25dbc73a AM |
3720 | static bfd_boolean |
3721 | ppc_elf_add_symbol_hook (bfd *abfd, | |
3722 | struct bfd_link_info *info, | |
3723 | Elf_Internal_Sym *sym, | |
3724 | const char **namep ATTRIBUTE_UNUSED, | |
3725 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3726 | asection **secp, | |
3727 | bfd_vma *valp) | |
3728 | { | |
3729 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3730 | && !bfd_link_relocatable (info) |
0c8d6e5c AM |
3731 | && is_ppc_elf (info->output_bfd) |
3732 | && sym->st_size <= elf_gp_size (abfd)) | |
25dbc73a AM |
3733 | { |
3734 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3735 | put into .sbss. */ | |
3736 | struct ppc_elf_link_hash_table *htab; | |
3dab13f6 | 3737 | |
25dbc73a AM |
3738 | htab = ppc_elf_hash_table (info); |
3739 | if (htab->sbss == NULL) | |
3740 | { | |
644285ef | 3741 | flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; |
3dab13f6 | 3742 | |
644285ef AM |
3743 | if (!htab->elf.dynobj) |
3744 | htab->elf.dynobj = abfd; | |
3745 | ||
3496cb2a L |
3746 | htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3747 | ".sbss", | |
3748 | flags); | |
3749 | if (htab->sbss == NULL) | |
25dbc73a | 3750 | return FALSE; |
3dab13f6 | 3751 | } |
3dab13f6 | 3752 | |
25dbc73a AM |
3753 | *secp = htab->sbss; |
3754 | *valp = sym->st_size; | |
3755 | } | |
3dab13f6 | 3756 | |
a43942db | 3757 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC |
f1885d1e AM |
3758 | && (abfd->flags & DYNAMIC) == 0 |
3759 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
a43942db | 3760 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
e054468f | 3761 | |
25dbc73a | 3762 | return TRUE; |
3dab13f6 AM |
3763 | } |
3764 | \f | |
25dbc73a AM |
3765 | /* Find a linker generated pointer with a given addend and type. */ |
3766 | ||
3767 | static elf_linker_section_pointers_t * | |
3768 | elf_find_pointer_linker_section | |
3769 | (elf_linker_section_pointers_t *linker_pointers, | |
3770 | bfd_vma addend, | |
3771 | elf_linker_section_t *lsect) | |
252b5132 | 3772 | { |
25dbc73a AM |
3773 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) |
3774 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) | |
3775 | return linker_pointers; | |
252b5132 | 3776 | |
25dbc73a AM |
3777 | return NULL; |
3778 | } | |
3779 | ||
3780 | /* Allocate a pointer to live in a linker created section. */ | |
3781 | ||
3782 | static bfd_boolean | |
93d1b056 AM |
3783 | elf_allocate_pointer_linker_section (bfd *abfd, |
3784 | elf_linker_section_t *lsect, | |
3785 | struct elf_link_hash_entry *h, | |
3786 | const Elf_Internal_Rela *rel) | |
25dbc73a AM |
3787 | { |
3788 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
3789 | elf_linker_section_pointers_t *linker_section_ptr; | |
3790 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
3791 | bfd_size_type amt; | |
3792 | ||
3793 | BFD_ASSERT (lsect != NULL); | |
3794 | ||
3795 | /* Is this a global symbol? */ | |
3796 | if (h != NULL) | |
3797 | { | |
3798 | struct ppc_elf_link_hash_entry *eh; | |
3799 | ||
3800 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3801 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3802 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3803 | rel->r_addend, | |
3804 | lsect)) | |
3805 | return TRUE; | |
3806 | ||
3807 | ptr_linker_section_ptr = &eh->linker_section_pointer; | |
25dbc73a AM |
3808 | } |
3809 | else | |
3810 | { | |
0c8d6e5c | 3811 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3812 | |
25dbc73a AM |
3813 | /* Allocation of a pointer to a local symbol. */ |
3814 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
3815 | ||
3816 | /* Allocate a table to hold the local symbols if first time. */ | |
3817 | if (!ptr) | |
3818 | { | |
0ffa91dd | 3819 | unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; |
25dbc73a AM |
3820 | |
3821 | amt = num_symbols; | |
3822 | amt *= sizeof (elf_linker_section_pointers_t *); | |
3823 | ptr = bfd_zalloc (abfd, amt); | |
3824 | ||
3825 | if (!ptr) | |
3826 | return FALSE; | |
3827 | ||
3828 | elf_local_ptr_offsets (abfd) = ptr; | |
3829 | } | |
3830 | ||
3831 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3832 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
3833 | rel->r_addend, | |
3834 | lsect)) | |
3835 | return TRUE; | |
252b5132 | 3836 | |
25dbc73a | 3837 | ptr_linker_section_ptr = &ptr[r_symndx]; |
25dbc73a | 3838 | } |
41fcb14e | 3839 | |
25dbc73a AM |
3840 | /* Allocate space for a pointer in the linker section, and allocate |
3841 | a new pointer record from internal memory. */ | |
3842 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
3843 | amt = sizeof (elf_linker_section_pointers_t); | |
3844 | linker_section_ptr = bfd_alloc (abfd, amt); | |
41fcb14e | 3845 | |
25dbc73a | 3846 | if (!linker_section_ptr) |
7619e7c7 | 3847 | return FALSE; |
41fcb14e | 3848 | |
25dbc73a AM |
3849 | linker_section_ptr->next = *ptr_linker_section_ptr; |
3850 | linker_section_ptr->addend = rel->r_addend; | |
3851 | linker_section_ptr->lsect = lsect; | |
25dbc73a | 3852 | *ptr_linker_section_ptr = linker_section_ptr; |
41fcb14e | 3853 | |
93d1b056 AM |
3854 | if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2)) |
3855 | return FALSE; | |
25dbc73a AM |
3856 | linker_section_ptr->offset = lsect->section->size; |
3857 | lsect->section->size += 4; | |
7619e7c7 | 3858 | |
25dbc73a AM |
3859 | #ifdef DEBUG |
3860 | fprintf (stderr, | |
3861 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
3862 | lsect->name, (long) linker_section_ptr->offset, | |
3863 | (long) lsect->section->size); | |
3864 | #endif | |
7619e7c7 AM |
3865 | |
3866 | return TRUE; | |
41fcb14e AM |
3867 | } |
3868 | ||
e054468f | 3869 | static struct plt_entry ** |
25dbc73a AM |
3870 | update_local_sym_info (bfd *abfd, |
3871 | Elf_Internal_Shdr *symtab_hdr, | |
3872 | unsigned long r_symndx, | |
3873 | int tls_type) | |
252b5132 | 3874 | { |
25dbc73a | 3875 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); |
e054468f | 3876 | struct plt_entry **local_plt; |
25dbc73a | 3877 | char *local_got_tls_masks; |
252b5132 | 3878 | |
25dbc73a | 3879 | if (local_got_refcounts == NULL) |
252b5132 | 3880 | { |
25dbc73a AM |
3881 | bfd_size_type size = symtab_hdr->sh_info; |
3882 | ||
e054468f AM |
3883 | size *= (sizeof (*local_got_refcounts) |
3884 | + sizeof (*local_plt) | |
3885 | + sizeof (*local_got_tls_masks)); | |
25dbc73a AM |
3886 | local_got_refcounts = bfd_zalloc (abfd, size); |
3887 | if (local_got_refcounts == NULL) | |
e054468f | 3888 | return NULL; |
25dbc73a | 3889 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 3890 | } |
41fcb14e | 3891 | |
e054468f AM |
3892 | local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info); |
3893 | local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
25dbc73a | 3894 | local_got_tls_masks[r_symndx] |= tls_type; |
e054468f AM |
3895 | if (tls_type != PLT_IFUNC) |
3896 | local_got_refcounts[r_symndx] += 1; | |
3897 | return local_plt + r_symndx; | |
25dbc73a | 3898 | } |
41fcb14e | 3899 | |
a6aa5195 | 3900 | static bfd_boolean |
3ec01793 | 3901 | update_plt_info (bfd *abfd, struct plt_entry **plist, |
a6aa5195 AM |
3902 | asection *sec, bfd_vma addend) |
3903 | { | |
3904 | struct plt_entry *ent; | |
3905 | ||
32af9f6e AM |
3906 | if (addend < 32768) |
3907 | sec = NULL; | |
3ec01793 | 3908 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3909 | if (ent->sec == sec && ent->addend == addend) |
3910 | break; | |
3911 | if (ent == NULL) | |
3912 | { | |
3913 | bfd_size_type amt = sizeof (*ent); | |
3914 | ent = bfd_alloc (abfd, amt); | |
3915 | if (ent == NULL) | |
3916 | return FALSE; | |
3ec01793 | 3917 | ent->next = *plist; |
a6aa5195 AM |
3918 | ent->sec = sec; |
3919 | ent->addend = addend; | |
3920 | ent->plt.refcount = 0; | |
3ec01793 | 3921 | *plist = ent; |
a6aa5195 AM |
3922 | } |
3923 | ent->plt.refcount += 1; | |
3924 | return TRUE; | |
3925 | } | |
3926 | ||
3927 | static struct plt_entry * | |
3ec01793 | 3928 | find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend) |
a6aa5195 AM |
3929 | { |
3930 | struct plt_entry *ent; | |
3931 | ||
3932 | if (addend < 32768) | |
3933 | sec = NULL; | |
3ec01793 | 3934 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3935 | if (ent->sec == sec && ent->addend == addend) |
3936 | break; | |
3937 | return ent; | |
3938 | } | |
3939 | ||
e054468f AM |
3940 | static bfd_boolean |
3941 | is_branch_reloc (enum elf_ppc_reloc_type r_type) | |
3942 | { | |
3943 | return (r_type == R_PPC_PLTREL24 | |
3944 | || r_type == R_PPC_LOCAL24PC | |
3945 | || r_type == R_PPC_REL24 | |
3946 | || r_type == R_PPC_REL14 | |
3947 | || r_type == R_PPC_REL14_BRTAKEN | |
3948 | || r_type == R_PPC_REL14_BRNTAKEN | |
3949 | || r_type == R_PPC_ADDR24 | |
3950 | || r_type == R_PPC_ADDR14 | |
3951 | || r_type == R_PPC_ADDR14_BRTAKEN | |
dfdaec14 AJ |
3952 | || r_type == R_PPC_ADDR14_BRNTAKEN |
3953 | || r_type == R_PPC_VLE_REL24); | |
e054468f AM |
3954 | } |
3955 | ||
25dbc73a AM |
3956 | static void |
3957 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) | |
3958 | { | |
3959 | (*_bfd_error_handler) | |
3960 | (_("%B: relocation %s cannot be used when making a shared object"), | |
3961 | abfd, | |
3962 | ppc_elf_howto_table[r_type]->name); | |
3963 | bfd_set_error (bfd_error_bad_value); | |
252b5132 RH |
3964 | } |
3965 | ||
25dbc73a AM |
3966 | /* Look through the relocs for a section during the first phase, and |
3967 | allocate space in the global offset table or procedure linkage | |
3968 | table. */ | |
252b5132 | 3969 | |
b34976b6 | 3970 | static bfd_boolean |
25dbc73a AM |
3971 | ppc_elf_check_relocs (bfd *abfd, |
3972 | struct bfd_link_info *info, | |
3973 | asection *sec, | |
3974 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3975 | { |
7619e7c7 | 3976 | struct ppc_elf_link_hash_table *htab; |
25dbc73a AM |
3977 | Elf_Internal_Shdr *symtab_hdr; |
3978 | struct elf_link_hash_entry **sym_hashes; | |
3979 | const Elf_Internal_Rela *rel; | |
3980 | const Elf_Internal_Rela *rel_end; | |
a6aa5195 | 3981 | asection *got2, *sreloc; |
727fc41e | 3982 | struct elf_link_hash_entry *tga; |
25dbc73a | 3983 | |
0e1862bb | 3984 | if (bfd_link_relocatable (info)) |
25dbc73a | 3985 | return TRUE; |
252b5132 | 3986 | |
c87b5a93 AM |
3987 | /* Don't do anything special with non-loaded, non-alloced sections. |
3988 | In particular, any relocs in such sections should not affect GOT | |
3989 | and PLT reference counting (ie. we don't allow them to create GOT | |
3990 | or PLT entries), there's no possibility or desire to optimize TLS | |
3991 | relocs, and there's not much point in propagating relocs to shared | |
3992 | libs that the dynamic linker won't relocate. */ | |
3993 | if ((sec->flags & SEC_ALLOC) == 0) | |
3994 | return TRUE; | |
3995 | ||
252b5132 | 3996 | #ifdef DEBUG |
25dbc73a AM |
3997 | _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", |
3998 | sec, abfd); | |
252b5132 RH |
3999 | #endif |
4000 | ||
0c8d6e5c | 4001 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 4002 | |
25dbc73a AM |
4003 | /* Initialize howto table if not already done. */ |
4004 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
4005 | ppc_elf_howto_init (); | |
4006 | ||
7619e7c7 | 4007 | htab = ppc_elf_hash_table (info); |
25f23106 AM |
4008 | if (htab->glink == NULL) |
4009 | { | |
4010 | if (htab->elf.dynobj == NULL) | |
4011 | htab->elf.dynobj = abfd; | |
4012 | if (!ppc_elf_create_glink (htab->elf.dynobj, info)) | |
4013 | return FALSE; | |
4014 | } | |
727fc41e AM |
4015 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
4016 | FALSE, FALSE, TRUE); | |
0ffa91dd | 4017 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a | 4018 | sym_hashes = elf_sym_hashes (abfd); |
a6aa5195 | 4019 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
4020 | sreloc = NULL; |
4021 | ||
4022 | rel_end = relocs + sec->reloc_count; | |
4023 | for (rel = relocs; rel < rel_end; rel++) | |
4024 | { | |
4025 | unsigned long r_symndx; | |
4026 | enum elf_ppc_reloc_type r_type; | |
4027 | struct elf_link_hash_entry *h; | |
727fc41e | 4028 | int tls_type; |
cbf95972 | 4029 | struct plt_entry **ifunc; |
25dbc73a AM |
4030 | |
4031 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4032 | if (r_symndx < symtab_hdr->sh_info) | |
4033 | h = NULL; | |
4034 | else | |
973a3492 L |
4035 | { |
4036 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4037 | while (h->root.type == bfd_link_hash_indirect | |
4038 | || h->root.type == bfd_link_hash_warning) | |
4039 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
4040 | |
4041 | /* PR15323, ref flags aren't set for references in the same | |
4042 | object. */ | |
4043 | h->root.non_ir_ref = 1; | |
973a3492 | 4044 | } |
25dbc73a AM |
4045 | |
4046 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
4047 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
4048 | startup code. */ | |
3b36f7e6 AM |
4049 | if (h != NULL |
4050 | && htab->got == NULL | |
4051 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 4052 | { |
3b36f7e6 AM |
4053 | if (htab->elf.dynobj == NULL) |
4054 | htab->elf.dynobj = abfd; | |
4055 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4056 | return FALSE; | |
4057 | BFD_ASSERT (h == htab->elf.hgot); | |
25dbc73a | 4058 | } |
252b5132 | 4059 | |
727fc41e | 4060 | tls_type = 0; |
de972ffa | 4061 | r_type = ELF32_R_TYPE (rel->r_info); |
cbf95972 | 4062 | ifunc = NULL; |
06a162cf | 4063 | if (h == NULL && !htab->is_vxworks) |
e054468f | 4064 | { |
06a162cf AM |
4065 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4066 | abfd, r_symndx); | |
4067 | if (isym == NULL) | |
4068 | return FALSE; | |
4069 | ||
0bed072f | 4070 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
e054468f | 4071 | { |
0bed072f | 4072 | /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */ |
06a162cf AM |
4073 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, |
4074 | PLT_IFUNC); | |
4075 | if (ifunc == NULL) | |
e054468f AM |
4076 | return FALSE; |
4077 | ||
06a162cf AM |
4078 | /* STT_GNU_IFUNC symbols must have a PLT entry; |
4079 | In a non-pie executable even when there are | |
4080 | no plt calls. */ | |
0e1862bb | 4081 | if (!bfd_link_pic (info) |
0bed072f | 4082 | || is_branch_reloc (r_type)) |
e054468f | 4083 | { |
0bed072f AM |
4084 | bfd_vma addend = 0; |
4085 | if (r_type == R_PPC_PLTREL24) | |
4086 | { | |
4087 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4088 | if (bfd_link_pic (info)) |
0bed072f AM |
4089 | addend = rel->r_addend; |
4090 | } | |
4091 | if (!update_plt_info (abfd, ifunc, got2, addend)) | |
4092 | return FALSE; | |
e054468f AM |
4093 | } |
4094 | } | |
25f23106 AM |
4095 | } |
4096 | ||
de972ffa AM |
4097 | if (!htab->is_vxworks |
4098 | && is_branch_reloc (r_type) | |
4099 | && h != NULL | |
4100 | && h == tga) | |
25f23106 | 4101 | { |
de972ffa AM |
4102 | if (rel != relocs |
4103 | && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD | |
4104 | || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) | |
4105 | /* We have a new-style __tls_get_addr call with a marker | |
4106 | reloc. */ | |
4107 | ; | |
4108 | else | |
4109 | /* Mark this section as having an old-style call. */ | |
4110 | sec->has_tls_get_addr_call = 1; | |
e054468f | 4111 | } |
727fc41e | 4112 | |
25dbc73a AM |
4113 | switch (r_type) |
4114 | { | |
727fc41e AM |
4115 | case R_PPC_TLSGD: |
4116 | case R_PPC_TLSLD: | |
4117 | /* These special tls relocs tie a call to __tls_get_addr with | |
4118 | its parameter symbol. */ | |
4119 | break; | |
4120 | ||
25dbc73a AM |
4121 | case R_PPC_GOT_TLSLD16: |
4122 | case R_PPC_GOT_TLSLD16_LO: | |
4123 | case R_PPC_GOT_TLSLD16_HI: | |
4124 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4125 | tls_type = TLS_TLS | TLS_LD; |
4126 | goto dogottls; | |
252b5132 | 4127 | |
25dbc73a AM |
4128 | case R_PPC_GOT_TLSGD16: |
4129 | case R_PPC_GOT_TLSGD16_LO: | |
4130 | case R_PPC_GOT_TLSGD16_HI: | |
4131 | case R_PPC_GOT_TLSGD16_HA: | |
4132 | tls_type = TLS_TLS | TLS_GD; | |
4133 | goto dogottls; | |
4134 | ||
4135 | case R_PPC_GOT_TPREL16: | |
4136 | case R_PPC_GOT_TPREL16_LO: | |
4137 | case R_PPC_GOT_TPREL16_HI: | |
4138 | case R_PPC_GOT_TPREL16_HA: | |
0e1862bb | 4139 | if (bfd_link_pic (info)) |
25dbc73a AM |
4140 | info->flags |= DF_STATIC_TLS; |
4141 | tls_type = TLS_TLS | TLS_TPREL; | |
4142 | goto dogottls; | |
4143 | ||
4144 | case R_PPC_GOT_DTPREL16: | |
4145 | case R_PPC_GOT_DTPREL16_LO: | |
4146 | case R_PPC_GOT_DTPREL16_HI: | |
4147 | case R_PPC_GOT_DTPREL16_HA: | |
4148 | tls_type = TLS_TLS | TLS_DTPREL; | |
4149 | dogottls: | |
4150 | sec->has_tls_reloc = 1; | |
4151 | /* Fall thru */ | |
252b5132 | 4152 | |
25dbc73a AM |
4153 | /* GOT16 relocations */ |
4154 | case R_PPC_GOT16: | |
4155 | case R_PPC_GOT16_LO: | |
4156 | case R_PPC_GOT16_HI: | |
4157 | case R_PPC_GOT16_HA: | |
4158 | /* This symbol requires a global offset table entry. */ | |
4159 | if (htab->got == NULL) | |
4160 | { | |
4161 | if (htab->elf.dynobj == NULL) | |
4162 | htab->elf.dynobj = abfd; | |
4163 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4164 | return FALSE; | |
4165 | } | |
4166 | if (h != NULL) | |
4167 | { | |
4168 | h->got.refcount += 1; | |
4169 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
4170 | } | |
4171 | else | |
4172 | /* This is a global offset table entry for a local symbol. */ | |
4173 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
4174 | return FALSE; | |
91e21fb7 AM |
4175 | |
4176 | /* We may also need a plt entry if the symbol turns out to be | |
4177 | an ifunc. */ | |
0e1862bb | 4178 | if (h != NULL && !bfd_link_pic (info)) |
91e21fb7 AM |
4179 | { |
4180 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4181 | return FALSE; | |
4182 | } | |
25dbc73a | 4183 | break; |
252b5132 | 4184 | |
25dbc73a AM |
4185 | /* Indirect .sdata relocation. */ |
4186 | case R_PPC_EMB_SDAI16: | |
0e1862bb | 4187 | if (bfd_link_pic (info)) |
25dbc73a AM |
4188 | { |
4189 | bad_shared_reloc (abfd, r_type); | |
4190 | return FALSE; | |
4191 | } | |
93d1b056 AM |
4192 | htab->sdata[0].sym->ref_regular = 1; |
4193 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0], | |
4194 | h, rel)) | |
25dbc73a | 4195 | return FALSE; |
046183de AM |
4196 | if (h != NULL) |
4197 | { | |
4198 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4199 | h->non_got_ref = TRUE; | |
4200 | } | |
25dbc73a | 4201 | break; |
252b5132 | 4202 | |
25dbc73a AM |
4203 | /* Indirect .sdata2 relocation. */ |
4204 | case R_PPC_EMB_SDA2I16: | |
0e1862bb | 4205 | if (bfd_link_pic (info)) |
25dbc73a AM |
4206 | { |
4207 | bad_shared_reloc (abfd, r_type); | |
4208 | return FALSE; | |
4209 | } | |
93d1b056 AM |
4210 | htab->sdata[1].sym->ref_regular = 1; |
4211 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1], | |
4212 | h, rel)) | |
25dbc73a | 4213 | return FALSE; |
046183de AM |
4214 | if (h != NULL) |
4215 | { | |
4216 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4217 | h->non_got_ref = TRUE; | |
4218 | } | |
25dbc73a | 4219 | break; |
252b5132 | 4220 | |
93d1b056 AM |
4221 | case R_PPC_SDAREL16: |
4222 | htab->sdata[0].sym->ref_regular = 1; | |
4223 | /* Fall thru */ | |
4224 | ||
b9c361e0 JL |
4225 | case R_PPC_VLE_SDAREL_LO16A: |
4226 | case R_PPC_VLE_SDAREL_LO16D: | |
4227 | case R_PPC_VLE_SDAREL_HI16A: | |
4228 | case R_PPC_VLE_SDAREL_HI16D: | |
4229 | case R_PPC_VLE_SDAREL_HA16A: | |
4230 | case R_PPC_VLE_SDAREL_HA16D: | |
046183de AM |
4231 | if (h != NULL) |
4232 | { | |
4233 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4234 | h->non_got_ref = TRUE; | |
4235 | } | |
4236 | break; | |
4237 | ||
b9c361e0 JL |
4238 | case R_PPC_VLE_REL8: |
4239 | case R_PPC_VLE_REL15: | |
4240 | case R_PPC_VLE_REL24: | |
4241 | case R_PPC_VLE_LO16A: | |
4242 | case R_PPC_VLE_LO16D: | |
4243 | case R_PPC_VLE_HI16A: | |
4244 | case R_PPC_VLE_HI16D: | |
4245 | case R_PPC_VLE_HA16A: | |
4246 | case R_PPC_VLE_HA16D: | |
4247 | break; | |
4248 | ||
25dbc73a | 4249 | case R_PPC_EMB_SDA2REL: |
0e1862bb | 4250 | if (bfd_link_pic (info)) |
046183de AM |
4251 | { |
4252 | bad_shared_reloc (abfd, r_type); | |
4253 | return FALSE; | |
4254 | } | |
93d1b056 | 4255 | htab->sdata[1].sym->ref_regular = 1; |
046183de AM |
4256 | if (h != NULL) |
4257 | { | |
4258 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4259 | h->non_got_ref = TRUE; | |
4260 | } | |
4261 | break; | |
4262 | ||
b9c361e0 JL |
4263 | case R_PPC_VLE_SDA21_LO: |
4264 | case R_PPC_VLE_SDA21: | |
25dbc73a AM |
4265 | case R_PPC_EMB_SDA21: |
4266 | case R_PPC_EMB_RELSDA: | |
0e1862bb | 4267 | if (bfd_link_pic (info)) |
046183de AM |
4268 | { |
4269 | bad_shared_reloc (abfd, r_type); | |
4270 | return FALSE; | |
4271 | } | |
046183de AM |
4272 | if (h != NULL) |
4273 | { | |
4274 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4275 | h->non_got_ref = TRUE; | |
4276 | } | |
4277 | break; | |
4278 | ||
25dbc73a AM |
4279 | case R_PPC_EMB_NADDR32: |
4280 | case R_PPC_EMB_NADDR16: | |
4281 | case R_PPC_EMB_NADDR16_LO: | |
4282 | case R_PPC_EMB_NADDR16_HI: | |
4283 | case R_PPC_EMB_NADDR16_HA: | |
0e1862bb | 4284 | if (bfd_link_pic (info)) |
25dbc73a AM |
4285 | { |
4286 | bad_shared_reloc (abfd, r_type); | |
4287 | return FALSE; | |
4288 | } | |
4dc4a9a5 | 4289 | if (h != NULL) |
046183de | 4290 | h->non_got_ref = TRUE; |
25dbc73a | 4291 | break; |
252b5132 | 4292 | |
25dbc73a | 4293 | case R_PPC_PLTREL24: |
de972ffa | 4294 | if (h == NULL) |
6d78d0b9 AM |
4295 | break; |
4296 | /* Fall through */ | |
4297 | case R_PPC_PLT32: | |
25dbc73a AM |
4298 | case R_PPC_PLTREL32: |
4299 | case R_PPC_PLT16_LO: | |
4300 | case R_PPC_PLT16_HI: | |
4301 | case R_PPC_PLT16_HA: | |
4302 | #ifdef DEBUG | |
4303 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
4304 | #endif | |
cbf95972 | 4305 | /* This symbol requires a procedure linkage table entry. */ |
25dbc73a AM |
4306 | if (h == NULL) |
4307 | { | |
cbf95972 AM |
4308 | if (ifunc == NULL) |
4309 | { | |
4310 | /* It does not make sense to have a procedure linkage | |
4311 | table entry for a non-ifunc local symbol. */ | |
4312 | info->callbacks->einfo | |
4313 | (_("%P: %H: %s reloc against local symbol\n"), | |
4314 | abfd, sec, rel->r_offset, | |
4315 | ppc_elf_howto_table[r_type]->name); | |
4316 | bfd_set_error (bfd_error_bad_value); | |
4317 | return FALSE; | |
4318 | } | |
25dbc73a | 4319 | } |
a6aa5195 AM |
4320 | else |
4321 | { | |
016687f8 | 4322 | bfd_vma addend = 0; |
ee05f2fe | 4323 | |
016687f8 AM |
4324 | if (r_type == R_PPC_PLTREL24) |
4325 | { | |
4326 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4327 | if (bfd_link_pic (info)) |
a877a2b6 | 4328 | addend = rel->r_addend; |
016687f8 | 4329 | } |
a6aa5195 | 4330 | h->needs_plt = 1; |
32af9f6e | 4331 | if (!update_plt_info (abfd, &h->plt.plist, got2, addend)) |
a6aa5195 AM |
4332 | return FALSE; |
4333 | } | |
25dbc73a | 4334 | break; |
ee05f2fe | 4335 | |
25dbc73a AM |
4336 | /* The following relocations don't need to propagate the |
4337 | relocation if linking a shared object since they are | |
4338 | section relative. */ | |
4339 | case R_PPC_SECTOFF: | |
4340 | case R_PPC_SECTOFF_LO: | |
4341 | case R_PPC_SECTOFF_HI: | |
4342 | case R_PPC_SECTOFF_HA: | |
4343 | case R_PPC_DTPREL16: | |
4344 | case R_PPC_DTPREL16_LO: | |
4345 | case R_PPC_DTPREL16_HI: | |
4346 | case R_PPC_DTPREL16_HA: | |
4347 | case R_PPC_TOC16: | |
4348 | break; | |
252b5132 | 4349 | |
d7128ce4 AM |
4350 | case R_PPC_REL16: |
4351 | case R_PPC_REL16_LO: | |
4352 | case R_PPC_REL16_HI: | |
4353 | case R_PPC_REL16_HA: | |
a680de9a | 4354 | case R_PPC_REL16DX_HA: |
016687f8 | 4355 | ppc_elf_tdata (abfd)->has_rel16 = 1; |
d7128ce4 AM |
4356 | break; |
4357 | ||
a6aa5195 | 4358 | /* These are just markers. */ |
25dbc73a AM |
4359 | case R_PPC_TLS: |
4360 | case R_PPC_EMB_MRKREF: | |
4361 | case R_PPC_NONE: | |
4362 | case R_PPC_max: | |
32af9f6e AM |
4363 | case R_PPC_RELAX: |
4364 | case R_PPC_RELAX_PLT: | |
4365 | case R_PPC_RELAX_PLTREL24: | |
25dbc73a | 4366 | break; |
252b5132 | 4367 | |
25dbc73a AM |
4368 | /* These should only appear in dynamic objects. */ |
4369 | case R_PPC_COPY: | |
4370 | case R_PPC_GLOB_DAT: | |
4371 | case R_PPC_JMP_SLOT: | |
4372 | case R_PPC_RELATIVE: | |
e054468f | 4373 | case R_PPC_IRELATIVE: |
25dbc73a | 4374 | break; |
252b5132 | 4375 | |
25dbc73a AM |
4376 | /* These aren't handled yet. We'll report an error later. */ |
4377 | case R_PPC_ADDR30: | |
4378 | case R_PPC_EMB_RELSEC16: | |
4379 | case R_PPC_EMB_RELST_LO: | |
4380 | case R_PPC_EMB_RELST_HI: | |
4381 | case R_PPC_EMB_RELST_HA: | |
4382 | case R_PPC_EMB_BIT_FLD: | |
4383 | break; | |
252b5132 | 4384 | |
25dbc73a AM |
4385 | /* This refers only to functions defined in the shared library. */ |
4386 | case R_PPC_LOCAL24PC: | |
727fc41e | 4387 | if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) |
016687f8 AM |
4388 | { |
4389 | htab->plt_type = PLT_OLD; | |
4390 | htab->old_bfd = abfd; | |
4391 | } | |
c7e17e05 AM |
4392 | if (h != NULL && h->type == STT_GNU_IFUNC) |
4393 | { | |
c7e17e05 AM |
4394 | h->needs_plt = 1; |
4395 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4396 | return FALSE; | |
4397 | } | |
25dbc73a | 4398 | break; |
252b5132 | 4399 | |
25dbc73a AM |
4400 | /* This relocation describes the C++ object vtable hierarchy. |
4401 | Reconstruct it for later use during GC. */ | |
4402 | case R_PPC_GNU_VTINHERIT: | |
4403 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
4404 | return FALSE; | |
4405 | break; | |
252b5132 | 4406 | |
25dbc73a AM |
4407 | /* This relocation describes which C++ vtable entries are actually |
4408 | used. Record for later use during GC. */ | |
4409 | case R_PPC_GNU_VTENTRY: | |
d17e0c6e JB |
4410 | BFD_ASSERT (h != NULL); |
4411 | if (h != NULL | |
4412 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
25dbc73a AM |
4413 | return FALSE; |
4414 | break; | |
252b5132 | 4415 | |
25dbc73a AM |
4416 | /* We shouldn't really be seeing these. */ |
4417 | case R_PPC_TPREL32: | |
1d483afe AM |
4418 | case R_PPC_TPREL16: |
4419 | case R_PPC_TPREL16_LO: | |
4420 | case R_PPC_TPREL16_HI: | |
4421 | case R_PPC_TPREL16_HA: | |
0e1862bb | 4422 | if (bfd_link_pic (info)) |
25dbc73a AM |
4423 | info->flags |= DF_STATIC_TLS; |
4424 | goto dodyn; | |
252b5132 | 4425 | |
25dbc73a AM |
4426 | /* Nor these. */ |
4427 | case R_PPC_DTPMOD32: | |
4428 | case R_PPC_DTPREL32: | |
4429 | goto dodyn; | |
252b5132 | 4430 | |
9edfd1af AM |
4431 | case R_PPC_REL32: |
4432 | if (h == NULL | |
4433 | && got2 != NULL | |
4434 | && (sec->flags & SEC_CODE) != 0 | |
0e1862bb | 4435 | && bfd_link_pic (info) |
4a3dc543 | 4436 | && htab->plt_type == PLT_UNSET) |
9edfd1af AM |
4437 | { |
4438 | /* Old -fPIC gcc code has .long LCTOC1-LCFx just before | |
4439 | the start of a function, which assembles to a REL32 | |
4440 | reference to .got2. If we detect one of these, then | |
4441 | force the old PLT layout because the linker cannot | |
4442 | reliably deduce the GOT pointer value needed for | |
4443 | PLT call stubs. */ | |
4444 | asection *s; | |
87d72d41 | 4445 | Elf_Internal_Sym *isym; |
9edfd1af | 4446 | |
87d72d41 AM |
4447 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4448 | abfd, r_symndx); | |
4449 | if (isym == NULL) | |
4450 | return FALSE; | |
4451 | ||
4452 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
9edfd1af | 4453 | if (s == got2) |
016687f8 AM |
4454 | { |
4455 | htab->plt_type = PLT_OLD; | |
4456 | htab->old_bfd = abfd; | |
4457 | } | |
9edfd1af | 4458 | } |
7123df0e | 4459 | if (h == NULL || h == htab->elf.hgot) |
fd38b44c | 4460 | break; |
625af618 AM |
4461 | /* fall through */ |
4462 | ||
4463 | case R_PPC_ADDR32: | |
4464 | case R_PPC_ADDR16: | |
4465 | case R_PPC_ADDR16_LO: | |
4466 | case R_PPC_ADDR16_HI: | |
4467 | case R_PPC_ADDR16_HA: | |
4468 | case R_PPC_UADDR32: | |
4469 | case R_PPC_UADDR16: | |
0e1862bb | 4470 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
4471 | { |
4472 | /* We may need a plt entry if the symbol turns out to be | |
4473 | a function defined in a dynamic object. */ | |
3ec01793 | 4474 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
625af618 AM |
4475 | return FALSE; |
4476 | ||
4477 | /* We may need a copy reloc too. */ | |
4478 | h->non_got_ref = 1; | |
4479 | h->pointer_equality_needed = 1; | |
d3e454b9 AM |
4480 | if (r_type == R_PPC_ADDR16_HA) |
4481 | ppc_elf_hash_entry (h)->has_addr16_ha = 1; | |
4482 | if (r_type == R_PPC_ADDR16_LO) | |
4483 | ppc_elf_hash_entry (h)->has_addr16_lo = 1; | |
625af618 AM |
4484 | } |
4485 | goto dodyn; | |
9edfd1af | 4486 | |
25dbc73a AM |
4487 | case R_PPC_REL24: |
4488 | case R_PPC_REL14: | |
4489 | case R_PPC_REL14_BRTAKEN: | |
4490 | case R_PPC_REL14_BRNTAKEN: | |
d7128ce4 | 4491 | if (h == NULL) |
25dbc73a | 4492 | break; |
7123df0e | 4493 | if (h == htab->elf.hgot) |
d7128ce4 | 4494 | { |
7123df0e | 4495 | if (htab->plt_type == PLT_UNSET) |
016687f8 AM |
4496 | { |
4497 | htab->plt_type = PLT_OLD; | |
4498 | htab->old_bfd = abfd; | |
4499 | } | |
d7128ce4 AM |
4500 | break; |
4501 | } | |
25dbc73a | 4502 | /* fall through */ |
ee05f2fe | 4503 | |
25dbc73a | 4504 | case R_PPC_ADDR24: |
25dbc73a AM |
4505 | case R_PPC_ADDR14: |
4506 | case R_PPC_ADDR14_BRTAKEN: | |
4507 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 4508 | if (h != NULL && !bfd_link_pic (info)) |
25dbc73a AM |
4509 | { |
4510 | /* We may need a plt entry if the symbol turns out to be | |
4511 | a function defined in a dynamic object. */ | |
e054468f | 4512 | h->needs_plt = 1; |
de972ffa | 4513 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
a6aa5195 | 4514 | return FALSE; |
625af618 | 4515 | break; |
25dbc73a | 4516 | } |
7619e7c7 | 4517 | |
25dbc73a AM |
4518 | dodyn: |
4519 | /* If we are creating a shared library, and this is a reloc | |
4520 | against a global symbol, or a non PC relative reloc | |
4521 | against a local symbol, then we need to copy the reloc | |
4522 | into the shared library. However, if we are linking with | |
4523 | -Bsymbolic, we do not need to copy a reloc against a | |
4524 | global symbol which is defined in an object we are | |
4525 | including in the link (i.e., DEF_REGULAR is set). At | |
4526 | this point we have not seen all the input files, so it is | |
4527 | possible that DEF_REGULAR is not set now but will be set | |
4528 | later (it is never cleared). In case of a weak definition, | |
4529 | DEF_REGULAR may be cleared later by a strong definition in | |
4530 | a shared library. We account for that possibility below by | |
4531 | storing information in the dyn_relocs field of the hash | |
4532 | table entry. A similar situation occurs when creating | |
4533 | shared libraries and symbol visibility changes render the | |
4534 | symbol local. | |
7619e7c7 | 4535 | |
25dbc73a AM |
4536 | If on the other hand, we are creating an executable, we |
4537 | may need to keep relocations for symbols satisfied by a | |
4538 | dynamic library if we manage to avoid copy relocs for the | |
4539 | symbol. */ | |
0e1862bb | 4540 | if ((bfd_link_pic (info) |
1d483afe | 4541 | && (must_be_dyn_reloc (info, r_type) |
25dbc73a | 4542 | || (h != NULL |
198f1157 | 4543 | && (!SYMBOLIC_BIND (info, h) |
25dbc73a AM |
4544 | || h->root.type == bfd_link_hash_defweak |
4545 | || !h->def_regular)))) | |
4546 | || (ELIMINATE_COPY_RELOCS | |
0e1862bb | 4547 | && !bfd_link_pic (info) |
25dbc73a AM |
4548 | && h != NULL |
4549 | && (h->root.type == bfd_link_hash_defweak | |
de972ffa | 4550 | || !h->def_regular))) |
25dbc73a | 4551 | { |
25dbc73a AM |
4552 | #ifdef DEBUG |
4553 | fprintf (stderr, | |
4554 | "ppc_elf_check_relocs needs to " | |
4555 | "create relocation for %s\n", | |
4556 | (h && h->root.root.string | |
4557 | ? h->root.root.string : "<unknown>")); | |
4558 | #endif | |
4559 | if (sreloc == NULL) | |
4560 | { | |
c9a2f333 AM |
4561 | if (htab->elf.dynobj == NULL) |
4562 | htab->elf.dynobj = abfd; | |
83bac4b0 NC |
4563 | |
4564 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
4565 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
4566 | ||
25dbc73a | 4567 | if (sreloc == NULL) |
83bac4b0 | 4568 | return FALSE; |
25dbc73a | 4569 | } |
7619e7c7 | 4570 | |
25dbc73a AM |
4571 | /* If this is a global symbol, we count the number of |
4572 | relocations we need for this symbol. */ | |
4573 | if (h != NULL) | |
4574 | { | |
f95f8542 AM |
4575 | struct elf_dyn_relocs *p; |
4576 | struct elf_dyn_relocs **rel_head; | |
4577 | ||
91d6fa6a | 4578 | rel_head = &ppc_elf_hash_entry (h)->dyn_relocs; |
f95f8542 AM |
4579 | p = *rel_head; |
4580 | if (p == NULL || p->sec != sec) | |
4581 | { | |
4582 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4583 | if (p == NULL) | |
4584 | return FALSE; | |
4585 | p->next = *rel_head; | |
4586 | *rel_head = p; | |
4587 | p->sec = sec; | |
4588 | p->count = 0; | |
4589 | p->pc_count = 0; | |
4590 | } | |
4591 | p->count += 1; | |
4592 | if (!must_be_dyn_reloc (info, r_type)) | |
4593 | p->pc_count += 1; | |
25dbc73a AM |
4594 | } |
4595 | else | |
4596 | { | |
4597 | /* Track dynamic relocs needed for local syms too. | |
4598 | We really need local syms available to do this | |
4599 | easily. Oh well. */ | |
f95f8542 AM |
4600 | struct ppc_dyn_relocs *p; |
4601 | struct ppc_dyn_relocs **rel_head; | |
4602 | bfd_boolean is_ifunc; | |
25dbc73a | 4603 | asection *s; |
6edfbbad | 4604 | void *vpp; |
87d72d41 | 4605 | Elf_Internal_Sym *isym; |
6edfbbad | 4606 | |
87d72d41 AM |
4607 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4608 | abfd, r_symndx); | |
4609 | if (isym == NULL) | |
25dbc73a | 4610 | return FALSE; |
7fce784e | 4611 | |
87d72d41 AM |
4612 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
4613 | if (s == NULL) | |
4614 | s = sec; | |
4615 | ||
6edfbbad | 4616 | vpp = &elf_section_data (s)->local_dynrel; |
f95f8542 AM |
4617 | rel_head = (struct ppc_dyn_relocs **) vpp; |
4618 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
4619 | p = *rel_head; | |
4620 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
4621 | p = p->next; | |
4622 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
4623 | { | |
4624 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4625 | if (p == NULL) | |
4626 | return FALSE; | |
4627 | p->next = *rel_head; | |
4628 | *rel_head = p; | |
4629 | p->sec = sec; | |
4630 | p->ifunc = is_ifunc; | |
4631 | p->count = 0; | |
4632 | } | |
4633 | p->count += 1; | |
25dbc73a | 4634 | } |
7619e7c7 | 4635 | } |
25dbc73a AM |
4636 | |
4637 | break; | |
7619e7c7 AM |
4638 | } |
4639 | } | |
ee05f2fe | 4640 | |
25dbc73a AM |
4641 | return TRUE; |
4642 | } | |
4643 | \f | |
34c8bcba JM |
4644 | |
4645 | /* Merge object attributes from IBFD into OBFD. Raise an error if | |
4646 | there are conflicting attributes. */ | |
4647 | static bfd_boolean | |
4648 | ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd) | |
4649 | { | |
c6e65352 DJ |
4650 | obj_attribute *in_attr, *in_attrs; |
4651 | obj_attribute *out_attr, *out_attrs; | |
34c8bcba JM |
4652 | |
4653 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
4654 | { | |
4655 | /* This is the first object. Copy the attributes. */ | |
4656 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
4657 | ||
4658 | /* Use the Tag_null value to indicate the attributes have been | |
4659 | initialized. */ | |
4660 | elf_known_obj_attributes_proc (obfd)[0].i = 1; | |
4661 | ||
4662 | return TRUE; | |
4663 | } | |
4664 | ||
c6e65352 DJ |
4665 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
4666 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
4667 | ||
34c8bcba JM |
4668 | /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge |
4669 | non-conflicting ones. */ | |
c6e65352 DJ |
4670 | in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; |
4671 | out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; | |
4672 | if (in_attr->i != out_attr->i) | |
34c8bcba | 4673 | { |
c6e65352 DJ |
4674 | out_attr->type = 1; |
4675 | if (out_attr->i == 0) | |
4676 | out_attr->i = in_attr->i; | |
4677 | else if (in_attr->i == 0) | |
34c8bcba | 4678 | ; |
c6e65352 | 4679 | else if (out_attr->i == 1 && in_attr->i == 2) |
34c8bcba JM |
4680 | _bfd_error_handler |
4681 | (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); | |
3c7b9897 AM |
4682 | else if (out_attr->i == 1 && in_attr->i == 3) |
4683 | _bfd_error_handler | |
5b914448 | 4684 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4685 | obfd, ibfd); |
4686 | else if (out_attr->i == 3 && in_attr->i == 1) | |
4687 | _bfd_error_handler | |
5b914448 | 4688 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4689 | ibfd, obfd); |
4690 | else if (out_attr->i == 3 && in_attr->i == 2) | |
4691 | _bfd_error_handler | |
5b914448 | 4692 | (_("Warning: %B uses soft float, %B uses single-precision hard float"), |
3c7b9897 AM |
4693 | ibfd, obfd); |
4694 | else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3)) | |
34c8bcba JM |
4695 | _bfd_error_handler |
4696 | (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); | |
3c7b9897 | 4697 | else if (in_attr->i > 3) |
34c8bcba JM |
4698 | _bfd_error_handler |
4699 | (_("Warning: %B uses unknown floating point ABI %d"), ibfd, | |
c6e65352 | 4700 | in_attr->i); |
34c8bcba JM |
4701 | else |
4702 | _bfd_error_handler | |
4703 | (_("Warning: %B uses unknown floating point ABI %d"), obfd, | |
c6e65352 DJ |
4704 | out_attr->i); |
4705 | } | |
4706 | ||
4707 | /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and | |
4708 | merge non-conflicting ones. */ | |
4709 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; | |
4710 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; | |
4711 | if (in_attr->i != out_attr->i) | |
4712 | { | |
4713 | const char *in_abi = NULL, *out_abi = NULL; | |
4714 | ||
4715 | switch (in_attr->i) | |
4716 | { | |
4717 | case 1: in_abi = "generic"; break; | |
4718 | case 2: in_abi = "AltiVec"; break; | |
4719 | case 3: in_abi = "SPE"; break; | |
4720 | } | |
4721 | ||
4722 | switch (out_attr->i) | |
4723 | { | |
4724 | case 1: out_abi = "generic"; break; | |
4725 | case 2: out_abi = "AltiVec"; break; | |
4726 | case 3: out_abi = "SPE"; break; | |
4727 | } | |
4728 | ||
4729 | out_attr->type = 1; | |
4730 | if (out_attr->i == 0) | |
4731 | out_attr->i = in_attr->i; | |
4732 | else if (in_attr->i == 0) | |
4733 | ; | |
4734 | /* For now, allow generic to transition to AltiVec or SPE | |
4735 | without a warning. If GCC marked files with their stack | |
4736 | alignment and used don't-care markings for files which are | |
4737 | not affected by the vector ABI, we could warn about this | |
4738 | case too. */ | |
4739 | else if (out_attr->i == 1) | |
4740 | out_attr->i = in_attr->i; | |
4741 | else if (in_attr->i == 1) | |
4742 | ; | |
4743 | else if (in_abi == NULL) | |
4744 | _bfd_error_handler | |
4745 | (_("Warning: %B uses unknown vector ABI %d"), ibfd, | |
4746 | in_attr->i); | |
4747 | else if (out_abi == NULL) | |
4748 | _bfd_error_handler | |
4749 | (_("Warning: %B uses unknown vector ABI %d"), obfd, | |
4750 | in_attr->i); | |
4751 | else | |
4752 | _bfd_error_handler | |
4753 | (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""), | |
4754 | ibfd, obfd, in_abi, out_abi); | |
34c8bcba JM |
4755 | } |
4756 | ||
f82e0623 NF |
4757 | /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes |
4758 | and merge non-conflicting ones. */ | |
4759 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4760 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4761 | if (in_attr->i != out_attr->i) | |
4762 | { | |
4763 | out_attr->type = 1; | |
4764 | if (out_attr->i == 0) | |
4765 | out_attr->i = in_attr->i; | |
4766 | else if (in_attr->i == 0) | |
4767 | ; | |
4768 | else if (out_attr->i == 1 && in_attr->i == 2) | |
4769 | _bfd_error_handler | |
4770 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd); | |
4771 | else if (out_attr->i == 2 && in_attr->i == 1) | |
4772 | _bfd_error_handler | |
4773 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd); | |
4774 | else if (in_attr->i > 2) | |
4775 | _bfd_error_handler | |
4776 | (_("Warning: %B uses unknown small structure return convention %d"), ibfd, | |
4777 | in_attr->i); | |
4778 | else | |
4779 | _bfd_error_handler | |
4780 | (_("Warning: %B uses unknown small structure return convention %d"), obfd, | |
4781 | out_attr->i); | |
4782 | } | |
4783 | ||
34c8bcba JM |
4784 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
4785 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
4786 | ||
4787 | return TRUE; | |
4788 | } | |
4789 | ||
8853c3d3 AM |
4790 | /* Merge backend specific data from an object file to the output |
4791 | object file when linking. */ | |
4792 | ||
4793 | static bfd_boolean | |
4794 | ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4795 | { | |
4796 | flagword old_flags; | |
4797 | flagword new_flags; | |
4798 | bfd_boolean error; | |
4799 | ||
0c8d6e5c | 4800 | if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) |
8853c3d3 AM |
4801 | return TRUE; |
4802 | ||
cc643b88 | 4803 | /* Check if we have the same endianness. */ |
8853c3d3 AM |
4804 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
4805 | return FALSE; | |
4806 | ||
34c8bcba JM |
4807 | if (!ppc_elf_merge_obj_attributes (ibfd, obfd)) |
4808 | return FALSE; | |
4809 | ||
8853c3d3 AM |
4810 | new_flags = elf_elfheader (ibfd)->e_flags; |
4811 | old_flags = elf_elfheader (obfd)->e_flags; | |
4812 | if (!elf_flags_init (obfd)) | |
4813 | { | |
4814 | /* First call, no flags set. */ | |
4815 | elf_flags_init (obfd) = TRUE; | |
4816 | elf_elfheader (obfd)->e_flags = new_flags; | |
4817 | } | |
4818 | ||
4819 | /* Compatible flags are ok. */ | |
4820 | else if (new_flags == old_flags) | |
4821 | ; | |
4822 | ||
4823 | /* Incompatible flags. */ | |
4824 | else | |
4825 | { | |
4826 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib | |
4827 | to be linked with either. */ | |
4828 | error = FALSE; | |
4829 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 | |
4830 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
4831 | { | |
4832 | error = TRUE; | |
4833 | (*_bfd_error_handler) | |
4834 | (_("%B: compiled with -mrelocatable and linked with " | |
4835 | "modules compiled normally"), ibfd); | |
4836 | } | |
4837 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
4838 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
4839 | { | |
4840 | error = TRUE; | |
4841 | (*_bfd_error_handler) | |
4842 | (_("%B: compiled normally and linked with " | |
4843 | "modules compiled with -mrelocatable"), ibfd); | |
4844 | } | |
4845 | ||
4846 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
4847 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
4848 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
4849 | ||
4850 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
4851 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
4852 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
4853 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
4854 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
4855 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
4856 | ||
4857 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if | |
4858 | any module uses it. */ | |
4859 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); | |
4860 | ||
4861 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4862 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4863 | ||
4864 | /* Warn about any other mismatches. */ | |
4865 | if (new_flags != old_flags) | |
4866 | { | |
4867 | error = TRUE; | |
4868 | (*_bfd_error_handler) | |
4869 | (_("%B: uses different e_flags (0x%lx) fields " | |
4870 | "than previous modules (0x%lx)"), | |
4871 | ibfd, (long) new_flags, (long) old_flags); | |
4872 | } | |
4873 | ||
4874 | if (error) | |
4875 | { | |
4876 | bfd_set_error (bfd_error_bad_value); | |
4877 | return FALSE; | |
4878 | } | |
4879 | } | |
4880 | ||
4881 | return TRUE; | |
4882 | } | |
b9c361e0 JL |
4883 | |
4884 | static void | |
86c95733 AM |
4885 | ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc, |
4886 | bfd_vma value, | |
4887 | split16_format_type split16_format) | |
b9c361e0 JL |
4888 | |
4889 | { | |
86c95733 | 4890 | unsigned int insn, top5; |
b9c361e0 | 4891 | |
86c95733 AM |
4892 | insn = bfd_get_32 (output_bfd, loc); |
4893 | top5 = value & 0xf800; | |
4894 | top5 = top5 << (split16_format == split16a_type ? 9 : 5); | |
dfdaec14 | 4895 | insn &= (split16_format == split16a_type ? ~0x1f007ff : ~0x1f07ff); |
b9c361e0 | 4896 | insn |= top5; |
86c95733 AM |
4897 | insn |= value & 0x7ff; |
4898 | bfd_put_32 (output_bfd, insn, loc); | |
b9c361e0 JL |
4899 | } |
4900 | ||
8853c3d3 | 4901 | \f |
d7128ce4 AM |
4902 | /* Choose which PLT scheme to use, and set .plt flags appropriately. |
4903 | Returns -1 on error, 0 for old PLT, 1 for new PLT. */ | |
4904 | int | |
4905 | ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, | |
5446cbdf | 4906 | struct bfd_link_info *info) |
d7128ce4 AM |
4907 | { |
4908 | struct ppc_elf_link_hash_table *htab; | |
9d8504b1 | 4909 | flagword flags; |
d7128ce4 AM |
4910 | |
4911 | htab = ppc_elf_hash_table (info); | |
4a3dc543 RS |
4912 | |
4913 | if (htab->plt_type == PLT_UNSET) | |
016687f8 | 4914 | { |
b3874e1a AM |
4915 | struct elf_link_hash_entry *h; |
4916 | ||
5446cbdf | 4917 | if (htab->params->plt_style == PLT_OLD) |
016687f8 | 4918 | htab->plt_type = PLT_OLD; |
0e1862bb | 4919 | else if (bfd_link_pic (info) |
b3874e1a AM |
4920 | && htab->elf.dynamic_sections_created |
4921 | && (h = elf_link_hash_lookup (&htab->elf, "_mcount", | |
4922 | FALSE, FALSE, TRUE)) != NULL | |
4923 | && (h->type == STT_FUNC | |
4924 | || h->needs_plt) | |
4925 | && h->ref_regular | |
4926 | && !(SYMBOL_CALLS_LOCAL (info, h) | |
4927 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4928 | && h->root.type == bfd_link_hash_undefweak))) | |
4929 | { | |
4930 | /* Profiling of shared libs (and pies) is not supported with | |
4931 | secure plt, because ppc32 does profiling before a | |
4932 | function prologue and a secure plt pic call stubs needs | |
4933 | r30 to be set up. */ | |
4934 | htab->plt_type = PLT_OLD; | |
4935 | } | |
016687f8 AM |
4936 | else |
4937 | { | |
4938 | bfd *ibfd; | |
5446cbdf | 4939 | enum ppc_elf_plt_type plt_type = htab->params->plt_style; |
016687f8 AM |
4940 | |
4941 | /* Look through the reloc flags left by ppc_elf_check_relocs. | |
4942 | Use the old style bss plt if a file makes plt calls | |
4943 | without using the new relocs, and if ld isn't given | |
4944 | --secure-plt and we never see REL16 relocs. */ | |
4945 | if (plt_type == PLT_UNSET) | |
4946 | plt_type = PLT_OLD; | |
c72f2fb2 | 4947 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
0c8d6e5c | 4948 | if (is_ppc_elf (ibfd)) |
016687f8 AM |
4949 | { |
4950 | if (ppc_elf_tdata (ibfd)->has_rel16) | |
4951 | plt_type = PLT_NEW; | |
4952 | else if (ppc_elf_tdata (ibfd)->makes_plt_call) | |
4953 | { | |
4954 | plt_type = PLT_OLD; | |
4955 | htab->old_bfd = ibfd; | |
4956 | break; | |
4957 | } | |
4958 | } | |
4959 | htab->plt_type = plt_type; | |
4960 | } | |
4961 | } | |
5446cbdf | 4962 | if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW) |
b3874e1a AM |
4963 | { |
4964 | if (htab->old_bfd != NULL) | |
4965 | info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"), | |
4966 | htab->old_bfd); | |
4967 | else | |
4968 | info->callbacks->einfo (_("%P: bss-plt forced by profiling\n")); | |
4969 | } | |
d7128ce4 | 4970 | |
4a3dc543 | 4971 | BFD_ASSERT (htab->plt_type != PLT_VXWORKS); |
9d8504b1 | 4972 | |
4a3dc543 | 4973 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
4974 | { |
4975 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
4976 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
86b9da88 AM |
4977 | |
4978 | /* The new PLT is a loaded section. */ | |
4979 | if (htab->plt != NULL | |
4980 | && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) | |
4981 | return -1; | |
4982 | ||
4983 | /* The new GOT is not executable. */ | |
4984 | if (htab->got != NULL | |
4985 | && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) | |
4986 | return -1; | |
d7128ce4 AM |
4987 | } |
4988 | else | |
4989 | { | |
4990 | /* Stop an unused .glink section from affecting .text alignment. */ | |
86b9da88 AM |
4991 | if (htab->glink != NULL |
4992 | && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) | |
4993 | return -1; | |
d7128ce4 | 4994 | } |
4a3dc543 | 4995 | return htab->plt_type == PLT_NEW; |
d7128ce4 AM |
4996 | } |
4997 | \f | |
25dbc73a AM |
4998 | /* Return the section that should be marked against GC for a given |
4999 | relocation. */ | |
586119b3 | 5000 | |
25dbc73a AM |
5001 | static asection * |
5002 | ppc_elf_gc_mark_hook (asection *sec, | |
07adf181 | 5003 | struct bfd_link_info *info, |
25dbc73a AM |
5004 | Elf_Internal_Rela *rel, |
5005 | struct elf_link_hash_entry *h, | |
5006 | Elf_Internal_Sym *sym) | |
5007 | { | |
5008 | if (h != NULL) | |
07adf181 AM |
5009 | switch (ELF32_R_TYPE (rel->r_info)) |
5010 | { | |
5011 | case R_PPC_GNU_VTINHERIT: | |
5012 | case R_PPC_GNU_VTENTRY: | |
5013 | return NULL; | |
5014 | } | |
5015 | ||
5016 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
25dbc73a | 5017 | } |
a876ecf9 | 5018 | |
25dbc73a AM |
5019 | /* Update the got, plt and dynamic reloc reference counts for the |
5020 | section being removed. */ | |
5021 | ||
5022 | static bfd_boolean | |
5023 | ppc_elf_gc_sweep_hook (bfd *abfd, | |
5024 | struct bfd_link_info *info, | |
5025 | asection *sec, | |
5026 | const Elf_Internal_Rela *relocs) | |
5027 | { | |
5028 | struct ppc_elf_link_hash_table *htab; | |
5029 | Elf_Internal_Shdr *symtab_hdr; | |
5030 | struct elf_link_hash_entry **sym_hashes; | |
5031 | bfd_signed_vma *local_got_refcounts; | |
5032 | const Elf_Internal_Rela *rel, *relend; | |
a6aa5195 | 5033 | asection *got2; |
25dbc73a | 5034 | |
0e1862bb | 5035 | if (bfd_link_relocatable (info)) |
7dda2462 TG |
5036 | return TRUE; |
5037 | ||
c87b5a93 AM |
5038 | if ((sec->flags & SEC_ALLOC) == 0) |
5039 | return TRUE; | |
5040 | ||
25dbc73a AM |
5041 | elf_section_data (sec)->local_dynrel = NULL; |
5042 | ||
5043 | htab = ppc_elf_hash_table (info); | |
0ffa91dd | 5044 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a AM |
5045 | sym_hashes = elf_sym_hashes (abfd); |
5046 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a6aa5195 | 5047 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
5048 | |
5049 | relend = relocs + sec->reloc_count; | |
5050 | for (rel = relocs; rel < relend; rel++) | |
5051 | { | |
5052 | unsigned long r_symndx; | |
5053 | enum elf_ppc_reloc_type r_type; | |
5054 | struct elf_link_hash_entry *h = NULL; | |
5055 | ||
5056 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5057 | if (r_symndx >= symtab_hdr->sh_info) | |
a876ecf9 | 5058 | { |
6061a67d | 5059 | struct elf_dyn_relocs **pp, *p; |
25dbc73a AM |
5060 | struct ppc_elf_link_hash_entry *eh; |
5061 | ||
5062 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5063 | while (h->root.type == bfd_link_hash_indirect | |
5064 | || h->root.type == bfd_link_hash_warning) | |
5065 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5066 | eh = (struct ppc_elf_link_hash_entry *) h; | |
5067 | ||
5068 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
5069 | if (p->sec == sec) | |
5070 | { | |
5071 | /* Everything must go for SEC. */ | |
5072 | *pp = p->next; | |
5073 | break; | |
5074 | } | |
a876ecf9 | 5075 | } |
ee05f2fe | 5076 | |
25dbc73a | 5077 | r_type = ELF32_R_TYPE (rel->r_info); |
de972ffa AM |
5078 | if (!htab->is_vxworks |
5079 | && h == NULL | |
5080 | && local_got_refcounts != NULL | |
0e1862bb | 5081 | && (!bfd_link_pic (info) |
de972ffa | 5082 | || is_branch_reloc (r_type))) |
e054468f | 5083 | { |
de972ffa AM |
5084 | struct plt_entry **local_plt = (struct plt_entry **) |
5085 | (local_got_refcounts + symtab_hdr->sh_info); | |
5086 | char *local_got_tls_masks = (char *) | |
5087 | (local_plt + symtab_hdr->sh_info); | |
5088 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
e054468f | 5089 | { |
de972ffa | 5090 | struct plt_entry **ifunc = local_plt + r_symndx; |
a877a2b6 AM |
5091 | bfd_vma addend = 0; |
5092 | struct plt_entry *ent; | |
5093 | ||
0e1862bb | 5094 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5095 | addend = rel->r_addend; |
5096 | ent = find_plt_ent (ifunc, got2, addend); | |
e054468f AM |
5097 | if (ent->plt.refcount > 0) |
5098 | ent->plt.refcount -= 1; | |
5099 | continue; | |
5100 | } | |
5101 | } | |
5102 | ||
25dbc73a | 5103 | switch (r_type) |
ee05f2fe | 5104 | { |
25dbc73a AM |
5105 | case R_PPC_GOT_TLSLD16: |
5106 | case R_PPC_GOT_TLSLD16_LO: | |
5107 | case R_PPC_GOT_TLSLD16_HI: | |
5108 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
5109 | case R_PPC_GOT_TLSGD16: |
5110 | case R_PPC_GOT_TLSGD16_LO: | |
5111 | case R_PPC_GOT_TLSGD16_HI: | |
5112 | case R_PPC_GOT_TLSGD16_HA: | |
5113 | case R_PPC_GOT_TPREL16: | |
5114 | case R_PPC_GOT_TPREL16_LO: | |
5115 | case R_PPC_GOT_TPREL16_HI: | |
5116 | case R_PPC_GOT_TPREL16_HA: | |
5117 | case R_PPC_GOT_DTPREL16: | |
5118 | case R_PPC_GOT_DTPREL16_LO: | |
5119 | case R_PPC_GOT_DTPREL16_HI: | |
5120 | case R_PPC_GOT_DTPREL16_HA: | |
5121 | case R_PPC_GOT16: | |
5122 | case R_PPC_GOT16_LO: | |
5123 | case R_PPC_GOT16_HI: | |
5124 | case R_PPC_GOT16_HA: | |
5125 | if (h != NULL) | |
ee05f2fe | 5126 | { |
25dbc73a AM |
5127 | if (h->got.refcount > 0) |
5128 | h->got.refcount--; | |
0e1862bb | 5129 | if (!bfd_link_pic (info)) |
91e21fb7 AM |
5130 | { |
5131 | struct plt_entry *ent; | |
5132 | ||
5133 | ent = find_plt_ent (&h->plt.plist, NULL, 0); | |
32af9f6e | 5134 | if (ent != NULL && ent->plt.refcount > 0) |
91e21fb7 AM |
5135 | ent->plt.refcount -= 1; |
5136 | } | |
ee05f2fe | 5137 | } |
25dbc73a AM |
5138 | else if (local_got_refcounts != NULL) |
5139 | { | |
5140 | if (local_got_refcounts[r_symndx] > 0) | |
5141 | local_got_refcounts[r_symndx]--; | |
5142 | } | |
5143 | break; | |
ee05f2fe | 5144 | |
25dbc73a AM |
5145 | case R_PPC_REL24: |
5146 | case R_PPC_REL14: | |
5147 | case R_PPC_REL14_BRTAKEN: | |
5148 | case R_PPC_REL14_BRNTAKEN: | |
5149 | case R_PPC_REL32: | |
3b36f7e6 | 5150 | if (h == NULL || h == htab->elf.hgot) |
25dbc73a AM |
5151 | break; |
5152 | /* Fall thru */ | |
ee05f2fe | 5153 | |
25dbc73a AM |
5154 | case R_PPC_ADDR32: |
5155 | case R_PPC_ADDR24: | |
5156 | case R_PPC_ADDR16: | |
5157 | case R_PPC_ADDR16_LO: | |
5158 | case R_PPC_ADDR16_HI: | |
5159 | case R_PPC_ADDR16_HA: | |
5160 | case R_PPC_ADDR14: | |
5161 | case R_PPC_ADDR14_BRTAKEN: | |
5162 | case R_PPC_ADDR14_BRNTAKEN: | |
5163 | case R_PPC_UADDR32: | |
5164 | case R_PPC_UADDR16: | |
0e1862bb | 5165 | if (bfd_link_pic (info)) |
87538722 AM |
5166 | break; |
5167 | ||
25dbc73a AM |
5168 | case R_PPC_PLT32: |
5169 | case R_PPC_PLTREL24: | |
87538722 | 5170 | case R_PPC_PLTREL32: |
25dbc73a AM |
5171 | case R_PPC_PLT16_LO: |
5172 | case R_PPC_PLT16_HI: | |
5173 | case R_PPC_PLT16_HA: | |
5174 | if (h != NULL) | |
5175 | { | |
a877a2b6 AM |
5176 | bfd_vma addend = 0; |
5177 | struct plt_entry *ent; | |
5178 | ||
0e1862bb | 5179 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5180 | addend = rel->r_addend; |
5181 | ent = find_plt_ent (&h->plt.plist, got2, addend); | |
32af9f6e | 5182 | if (ent != NULL && ent->plt.refcount > 0) |
a6aa5195 | 5183 | ent->plt.refcount -= 1; |
25dbc73a AM |
5184 | } |
5185 | break; | |
ee05f2fe | 5186 | |
25dbc73a AM |
5187 | default: |
5188 | break; | |
5189 | } | |
7fce784e | 5190 | } |
7fce784e AS |
5191 | return TRUE; |
5192 | } | |
25dbc73a | 5193 | \f |
3a71aa26 AM |
5194 | /* Set plt output section type, htab->tls_get_addr, and call the |
5195 | generic ELF tls_setup function. */ | |
7fce784e | 5196 | |
25dbc73a | 5197 | asection * |
5446cbdf | 5198 | ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
7fce784e | 5199 | { |
25dbc73a | 5200 | struct ppc_elf_link_hash_table *htab; |
7fce784e | 5201 | |
25dbc73a | 5202 | htab = ppc_elf_hash_table (info); |
a7f2871e AM |
5203 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
5204 | FALSE, FALSE, TRUE); | |
f01f1741 AM |
5205 | if (htab->plt_type != PLT_NEW) |
5206 | htab->params->no_tls_get_addr_opt = TRUE; | |
5207 | ||
5446cbdf | 5208 | if (!htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
5209 | { |
5210 | struct elf_link_hash_entry *opt, *tga; | |
5211 | opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
5212 | FALSE, FALSE, TRUE); | |
5213 | if (opt != NULL | |
5214 | && (opt->root.type == bfd_link_hash_defined | |
5215 | || opt->root.type == bfd_link_hash_defweak)) | |
5216 | { | |
5217 | /* If glibc supports an optimized __tls_get_addr call stub, | |
5218 | signalled by the presence of __tls_get_addr_opt, and we'll | |
5219 | be calling __tls_get_addr via a plt call stub, then | |
5220 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
5221 | tga = htab->tls_get_addr; | |
5222 | if (htab->elf.dynamic_sections_created | |
5223 | && tga != NULL | |
5224 | && (tga->type == STT_FUNC | |
5225 | || tga->needs_plt) | |
5226 | && !(SYMBOL_CALLS_LOCAL (info, tga) | |
5227 | || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT | |
5228 | && tga->root.type == bfd_link_hash_undefweak))) | |
5229 | { | |
5230 | struct plt_entry *ent; | |
32af9f6e AM |
5231 | for (ent = tga->plt.plist; ent != NULL; ent = ent->next) |
5232 | if (ent->plt.refcount > 0) | |
5233 | break; | |
5234 | if (ent != NULL) | |
a7f2871e AM |
5235 | { |
5236 | tga->root.type = bfd_link_hash_indirect; | |
5237 | tga->root.u.i.link = &opt->root; | |
5238 | ppc_elf_copy_indirect_symbol (info, opt, tga); | |
3bd43ebc | 5239 | opt->forced_local = 0; |
a7f2871e AM |
5240 | if (opt->dynindx != -1) |
5241 | { | |
5242 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
5243 | opt->dynindx = -1; | |
5244 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
5245 | opt->dynstr_index); | |
5246 | if (!bfd_elf_link_record_dynamic_symbol (info, opt)) | |
5247 | return FALSE; | |
5248 | } | |
5249 | htab->tls_get_addr = opt; | |
5250 | } | |
5251 | } | |
5252 | } | |
5253 | else | |
5446cbdf | 5254 | htab->params->no_tls_get_addr_opt = TRUE; |
a7f2871e | 5255 | } |
4a3dc543 | 5256 | if (htab->plt_type == PLT_NEW |
d7128ce4 AM |
5257 | && htab->plt != NULL |
5258 | && htab->plt->output_section != NULL) | |
5259 | { | |
5260 | elf_section_type (htab->plt->output_section) = SHT_PROGBITS; | |
5261 | elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; | |
5262 | } | |
5263 | ||
25dbc73a | 5264 | return _bfd_elf_tls_setup (obfd, info); |
7fce784e AS |
5265 | } |
5266 | ||
3a71aa26 AM |
5267 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
5268 | HASH. */ | |
5269 | ||
5270 | static bfd_boolean | |
5271 | branch_reloc_hash_match (const bfd *ibfd, | |
5272 | const Elf_Internal_Rela *rel, | |
5273 | const struct elf_link_hash_entry *hash) | |
5274 | { | |
5275 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
5276 | enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); | |
5277 | unsigned int r_symndx = ELF32_R_SYM (rel->r_info); | |
5278 | ||
e054468f | 5279 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
3a71aa26 AM |
5280 | { |
5281 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5282 | struct elf_link_hash_entry *h; | |
5283 | ||
5284 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5285 | while (h->root.type == bfd_link_hash_indirect | |
5286 | || h->root.type == bfd_link_hash_warning) | |
5287 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5288 | if (h == hash) | |
5289 | return TRUE; | |
5290 | } | |
5291 | return FALSE; | |
5292 | } | |
5293 | ||
25dbc73a AM |
5294 | /* Run through all the TLS relocs looking for optimization |
5295 | opportunities. */ | |
252b5132 | 5296 | |
25dbc73a AM |
5297 | bfd_boolean |
5298 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, | |
5299 | struct bfd_link_info *info) | |
252b5132 | 5300 | { |
7fce784e | 5301 | bfd *ibfd; |
25dbc73a AM |
5302 | asection *sec; |
5303 | struct ppc_elf_link_hash_table *htab; | |
b7fcf6f6 | 5304 | int pass; |
252b5132 | 5305 | |
3cbc1e5e | 5306 | if (!bfd_link_executable (info)) |
25dbc73a | 5307 | return TRUE; |
252b5132 | 5308 | |
7619e7c7 | 5309 | htab = ppc_elf_hash_table (info); |
663a1470 AM |
5310 | if (htab == NULL) |
5311 | return FALSE; | |
5312 | ||
b7fcf6f6 AM |
5313 | /* Make two passes through the relocs. First time check that tls |
5314 | relocs involved in setting up a tls_get_addr call are indeed | |
663a1470 AM |
5315 | followed by such a call. If they are not, don't do any tls |
5316 | optimization. On the second pass twiddle tls_mask flags to | |
5317 | notify relocate_section that optimization can be done, and | |
5318 | adjust got and plt refcounts. */ | |
b7fcf6f6 | 5319 | for (pass = 0; pass < 2; ++pass) |
c72f2fb2 | 5320 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
b7fcf6f6 AM |
5321 | { |
5322 | Elf_Internal_Sym *locsyms = NULL; | |
0ffa91dd | 5323 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
32af9f6e | 5324 | asection *got2 = bfd_get_section_by_name (ibfd, ".got2"); |
7619e7c7 | 5325 | |
b7fcf6f6 AM |
5326 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
5327 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5328 | { | |
5329 | Elf_Internal_Rela *relstart, *rel, *relend; | |
663a1470 | 5330 | int expecting_tls_get_addr = 0; |
252b5132 | 5331 | |
b7fcf6f6 AM |
5332 | /* Read the relocations. */ |
5333 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
5334 | info->keep_memory); | |
5335 | if (relstart == NULL) | |
5336 | return FALSE; | |
7619e7c7 | 5337 | |
b7fcf6f6 AM |
5338 | relend = relstart + sec->reloc_count; |
5339 | for (rel = relstart; rel < relend; rel++) | |
5340 | { | |
5341 | enum elf_ppc_reloc_type r_type; | |
5342 | unsigned long r_symndx; | |
5343 | struct elf_link_hash_entry *h = NULL; | |
5344 | char *tls_mask; | |
5345 | char tls_set, tls_clear; | |
5346 | bfd_boolean is_local; | |
b7fcf6f6 AM |
5347 | bfd_signed_vma *got_count; |
5348 | ||
5349 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5350 | if (r_symndx >= symtab_hdr->sh_info) | |
5351 | { | |
5352 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 5353 | |
b7fcf6f6 AM |
5354 | sym_hashes = elf_sym_hashes (ibfd); |
5355 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5356 | while (h->root.type == bfd_link_hash_indirect | |
5357 | || h->root.type == bfd_link_hash_warning) | |
5358 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5359 | } | |
7619e7c7 | 5360 | |
b7fcf6f6 AM |
5361 | is_local = FALSE; |
5362 | if (h == NULL | |
5363 | || !h->def_dynamic) | |
5364 | is_local = TRUE; | |
7619e7c7 | 5365 | |
b7fcf6f6 | 5366 | r_type = ELF32_R_TYPE (rel->r_info); |
663a1470 AM |
5367 | /* If this section has old-style __tls_get_addr calls |
5368 | without marker relocs, then check that each | |
5369 | __tls_get_addr call reloc is preceded by a reloc | |
5370 | that conceivably belongs to the __tls_get_addr arg | |
5371 | setup insn. If we don't find matching arg setup | |
5372 | relocs, don't do any tls optimization. */ | |
5373 | if (pass == 0 | |
5374 | && sec->has_tls_get_addr_call | |
5375 | && h != NULL | |
5376 | && h == htab->tls_get_addr | |
5377 | && !expecting_tls_get_addr | |
5378 | && is_branch_reloc (r_type)) | |
5379 | { | |
25f53a85 | 5380 | info->callbacks->minfo ("%H __tls_get_addr lost arg, " |
663a1470 AM |
5381 | "TLS optimization disabled\n", |
5382 | ibfd, sec, rel->r_offset); | |
5383 | if (elf_section_data (sec)->relocs != relstart) | |
5384 | free (relstart); | |
5385 | return TRUE; | |
5386 | } | |
5387 | ||
5388 | expecting_tls_get_addr = 0; | |
b7fcf6f6 AM |
5389 | switch (r_type) |
5390 | { | |
5391 | case R_PPC_GOT_TLSLD16: | |
5392 | case R_PPC_GOT_TLSLD16_LO: | |
5393 | expecting_tls_get_addr = 1; | |
5394 | /* Fall thru */ | |
5395 | ||
5396 | case R_PPC_GOT_TLSLD16_HI: | |
5397 | case R_PPC_GOT_TLSLD16_HA: | |
5398 | /* These relocs should never be against a symbol | |
5399 | defined in a shared lib. Leave them alone if | |
5400 | that turns out to be the case. */ | |
5401 | if (!is_local) | |
5402 | continue; | |
5403 | ||
5404 | /* LD -> LE */ | |
5405 | tls_set = 0; | |
5406 | tls_clear = TLS_LD; | |
5407 | break; | |
5408 | ||
5409 | case R_PPC_GOT_TLSGD16: | |
5410 | case R_PPC_GOT_TLSGD16_LO: | |
5411 | expecting_tls_get_addr = 1; | |
5412 | /* Fall thru */ | |
5413 | ||
5414 | case R_PPC_GOT_TLSGD16_HI: | |
5415 | case R_PPC_GOT_TLSGD16_HA: | |
5416 | if (is_local) | |
5417 | /* GD -> LE */ | |
5418 | tls_set = 0; | |
5419 | else | |
5420 | /* GD -> IE */ | |
5421 | tls_set = TLS_TLS | TLS_TPRELGD; | |
5422 | tls_clear = TLS_GD; | |
5423 | break; | |
5424 | ||
5425 | case R_PPC_GOT_TPREL16: | |
5426 | case R_PPC_GOT_TPREL16_LO: | |
5427 | case R_PPC_GOT_TPREL16_HI: | |
5428 | case R_PPC_GOT_TPREL16_HA: | |
5429 | if (is_local) | |
5430 | { | |
5431 | /* IE -> LE */ | |
5432 | tls_set = 0; | |
5433 | tls_clear = TLS_TPREL; | |
5434 | break; | |
5435 | } | |
5436 | else | |
5437 | continue; | |
5438 | ||
32af9f6e AM |
5439 | case R_PPC_TLSGD: |
5440 | case R_PPC_TLSLD: | |
5441 | expecting_tls_get_addr = 2; | |
5442 | tls_set = 0; | |
5443 | tls_clear = 0; | |
5444 | break; | |
5445 | ||
b7fcf6f6 | 5446 | default: |
25dbc73a | 5447 | continue; |
b7fcf6f6 | 5448 | } |
25dbc73a | 5449 | |
b7fcf6f6 AM |
5450 | if (pass == 0) |
5451 | { | |
727fc41e | 5452 | if (!expecting_tls_get_addr |
32af9f6e AM |
5453 | || (expecting_tls_get_addr == 1 |
5454 | && !sec->has_tls_get_addr_call)) | |
b7fcf6f6 | 5455 | continue; |
25dbc73a | 5456 | |
3a71aa26 AM |
5457 | if (rel + 1 < relend |
5458 | && branch_reloc_hash_match (ibfd, rel + 1, | |
5459 | htab->tls_get_addr)) | |
5460 | continue; | |
25dbc73a | 5461 | |
b7fcf6f6 AM |
5462 | /* Uh oh, we didn't find the expected call. We |
5463 | could just mark this symbol to exclude it | |
5464 | from tls optimization but it's safer to skip | |
663a1470 | 5465 | the entire optimization. */ |
25f53a85 | 5466 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
663a1470 AM |
5467 | "TLS optimization disabled\n"), |
5468 | ibfd, sec, rel->r_offset); | |
5469 | if (elf_section_data (sec)->relocs != relstart) | |
5470 | free (relstart); | |
5471 | return TRUE; | |
b7fcf6f6 | 5472 | } |
25dbc73a | 5473 | |
32af9f6e AM |
5474 | if (expecting_tls_get_addr) |
5475 | { | |
5476 | struct plt_entry *ent; | |
5477 | bfd_vma addend = 0; | |
5478 | ||
0e1862bb | 5479 | if (bfd_link_pic (info) |
32af9f6e AM |
5480 | && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24) |
5481 | addend = rel[1].r_addend; | |
5482 | ent = find_plt_ent (&htab->tls_get_addr->plt.plist, | |
5483 | got2, addend); | |
5484 | if (ent != NULL && ent->plt.refcount > 0) | |
5485 | ent->plt.refcount -= 1; | |
5486 | ||
5487 | if (expecting_tls_get_addr == 2) | |
5488 | continue; | |
5489 | } | |
5490 | ||
b7fcf6f6 AM |
5491 | if (h != NULL) |
5492 | { | |
5493 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
5494 | got_count = &h->got.refcount; | |
5495 | } | |
5496 | else | |
5497 | { | |
b7fcf6f6 | 5498 | bfd_signed_vma *lgot_refs; |
e054468f | 5499 | struct plt_entry **local_plt; |
b7fcf6f6 | 5500 | char *lgot_masks; |
25dbc73a | 5501 | |
b7fcf6f6 AM |
5502 | if (locsyms == NULL) |
5503 | { | |
5504 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5505 | if (locsyms == NULL) | |
5506 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5507 | symtab_hdr->sh_info, | |
5508 | 0, NULL, NULL, NULL); | |
5509 | if (locsyms == NULL) | |
5510 | { | |
5511 | if (elf_section_data (sec)->relocs != relstart) | |
5512 | free (relstart); | |
5513 | return FALSE; | |
5514 | } | |
5515 | } | |
b7fcf6f6 AM |
5516 | lgot_refs = elf_local_got_refcounts (ibfd); |
5517 | if (lgot_refs == NULL) | |
5518 | abort (); | |
e054468f AM |
5519 | local_plt = (struct plt_entry **) |
5520 | (lgot_refs + symtab_hdr->sh_info); | |
5521 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
b7fcf6f6 AM |
5522 | tls_mask = &lgot_masks[r_symndx]; |
5523 | got_count = &lgot_refs[r_symndx]; | |
5524 | } | |
25dbc73a | 5525 | |
b7fcf6f6 AM |
5526 | if (tls_set == 0) |
5527 | { | |
5528 | /* We managed to get rid of a got entry. */ | |
5529 | if (*got_count > 0) | |
5530 | *got_count -= 1; | |
5531 | } | |
25dbc73a | 5532 | |
b7fcf6f6 AM |
5533 | *tls_mask |= tls_set; |
5534 | *tls_mask &= ~tls_clear; | |
5535 | } | |
25dbc73a | 5536 | |
b7fcf6f6 AM |
5537 | if (elf_section_data (sec)->relocs != relstart) |
5538 | free (relstart); | |
5539 | } | |
5540 | ||
5541 | if (locsyms != NULL | |
5542 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
5543 | { | |
5544 | if (!info->keep_memory) | |
5545 | free (locsyms); | |
5546 | else | |
5547 | symtab_hdr->contents = (unsigned char *) locsyms; | |
5548 | } | |
5549 | } | |
25dbc73a AM |
5550 | return TRUE; |
5551 | } | |
5552 | \f | |
625af618 AM |
5553 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
5554 | ||
5555 | static bfd_boolean | |
5556 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
5557 | { | |
6061a67d | 5558 | struct elf_dyn_relocs *p; |
625af618 AM |
5559 | |
5560 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
5561 | { | |
5562 | asection *s = p->sec->output_section; | |
5563 | ||
5564 | if (s != NULL | |
5565 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
5566 | == (SEC_READONLY | SEC_ALLOC))) | |
5567 | return TRUE; | |
5568 | } | |
5569 | return FALSE; | |
5570 | } | |
5571 | ||
25dbc73a AM |
5572 | /* Adjust a symbol defined by a dynamic object and referenced by a |
5573 | regular object. The current definition is in some section of the | |
5574 | dynamic object, but we're not including those sections. We have to | |
5575 | change the definition to something the rest of the link can | |
5576 | understand. */ | |
7fce784e | 5577 | |
25dbc73a AM |
5578 | static bfd_boolean |
5579 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
5580 | struct elf_link_hash_entry *h) | |
5581 | { | |
5582 | struct ppc_elf_link_hash_table *htab; | |
5583 | asection *s; | |
7fce784e | 5584 | |
25dbc73a AM |
5585 | #ifdef DEBUG |
5586 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", | |
5587 | h->root.root.string); | |
5588 | #endif | |
252b5132 | 5589 | |
25dbc73a AM |
5590 | /* Make sure we know what is going on here. */ |
5591 | htab = ppc_elf_hash_table (info); | |
5592 | BFD_ASSERT (htab->elf.dynobj != NULL | |
5593 | && (h->needs_plt | |
91e21fb7 | 5594 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5595 | || h->u.weakdef != NULL |
5596 | || (h->def_dynamic | |
5597 | && h->ref_regular | |
5598 | && !h->def_regular))); | |
252b5132 | 5599 | |
25dbc73a AM |
5600 | /* Deal with function syms. */ |
5601 | if (h->type == STT_FUNC | |
e054468f | 5602 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5603 | || h->needs_plt) |
5604 | { | |
5605 | /* Clear procedure linkage table information for any symbol that | |
5606 | won't need a .plt entry. */ | |
a6aa5195 AM |
5607 | struct plt_entry *ent; |
5608 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5609 | if (ent->plt.refcount > 0) | |
5610 | break; | |
5611 | if (ent == NULL | |
e054468f AM |
5612 | || (h->type != STT_GNU_IFUNC |
5613 | && (SYMBOL_CALLS_LOCAL (info, h) | |
5614 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5615 | && h->root.type == bfd_link_hash_undefweak)))) | |
252b5132 | 5616 | { |
25dbc73a | 5617 | /* A PLT entry is not required/allowed when: |
252b5132 | 5618 | |
25dbc73a AM |
5619 | 1. We are not using ld.so; because then the PLT entry |
5620 | can't be set up, so we can't use one. In this case, | |
5621 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 5622 | |
25dbc73a AM |
5623 | 2. GC has rendered the entry unused. |
5624 | ||
5625 | 3. We know for certain that a call to this symbol | |
5626 | will go to this object, or will remain undefined. */ | |
a6aa5195 | 5627 | h->plt.plist = NULL; |
25dbc73a | 5628 | h->needs_plt = 0; |
d1eca1e4 | 5629 | h->pointer_equality_needed = 0; |
25dbc73a | 5630 | } |
625af618 AM |
5631 | else |
5632 | { | |
d1eca1e4 AM |
5633 | /* Taking a function's address in a read/write section |
5634 | doesn't require us to define the function symbol in the | |
1009ef28 | 5635 | executable on a plt call stub. A dynamic reloc can |
d1eca1e4 AM |
5636 | be used instead. */ |
5637 | if (h->pointer_equality_needed | |
1009ef28 AM |
5638 | && h->type != STT_GNU_IFUNC |
5639 | && !htab->is_vxworks | |
5640 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
d1eca1e4 AM |
5641 | && !readonly_dynrelocs (h)) |
5642 | { | |
5643 | h->pointer_equality_needed = 0; | |
5644 | h->non_got_ref = 0; | |
5645 | } | |
5646 | ||
25f23106 AM |
5647 | /* After adjust_dynamic_symbol, non_got_ref set in the |
5648 | non-shared case means that we have allocated space in | |
5649 | .dynbss for the symbol and thus dyn_relocs for this | |
5650 | symbol should be discarded. | |
625af618 AM |
5651 | If we get here we know we are making a PLT entry for this |
5652 | symbol, and in an executable we'd normally resolve | |
5653 | relocations against this symbol to the PLT entry. Allow | |
5654 | dynamic relocs if the reference is weak, and the dynamic | |
5655 | relocs will not cause text relocation. */ | |
d1eca1e4 AM |
5656 | else if (!h->ref_regular_nonweak |
5657 | && h->non_got_ref | |
5658 | && h->type != STT_GNU_IFUNC | |
5659 | && !htab->is_vxworks | |
5660 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
5661 | && !readonly_dynrelocs (h)) | |
625af618 AM |
5662 | h->non_got_ref = 0; |
5663 | } | |
d3e454b9 | 5664 | h->protected_def = 0; |
25dbc73a | 5665 | return TRUE; |
252b5132 | 5666 | } |
25dbc73a | 5667 | else |
a6aa5195 | 5668 | h->plt.plist = NULL; |
252b5132 | 5669 | |
25dbc73a AM |
5670 | /* If this is a weak symbol, and there is a real definition, the |
5671 | processor independent code will have arranged for us to see the | |
5672 | real definition first, and we can just use the same value. */ | |
5673 | if (h->u.weakdef != NULL) | |
252b5132 | 5674 | { |
25dbc73a AM |
5675 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5676 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5677 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5678 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
5679 | if (ELIMINATE_COPY_RELOCS) | |
5680 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
5681 | return TRUE; | |
5682 | } | |
dc810e39 | 5683 | |
25dbc73a AM |
5684 | /* This is a reference to a symbol defined by a dynamic object which |
5685 | is not a function. */ | |
252b5132 | 5686 | |
25dbc73a AM |
5687 | /* If we are creating a shared library, we must presume that the |
5688 | only references to the symbol are via the global offset table. | |
5689 | For such cases we need not do anything here; the relocations will | |
5690 | be handled correctly by relocate_section. */ | |
0e1862bb | 5691 | if (bfd_link_pic (info)) |
d3e454b9 AM |
5692 | { |
5693 | h->protected_def = 0; | |
5694 | return TRUE; | |
5695 | } | |
252b5132 | 5696 | |
25dbc73a AM |
5697 | /* If there are no references to this symbol that do not use the |
5698 | GOT, we don't need to generate a copy reloc. */ | |
5699 | if (!h->non_got_ref) | |
d3e454b9 AM |
5700 | { |
5701 | h->protected_def = 0; | |
5702 | return TRUE; | |
5703 | } | |
5704 | ||
5705 | /* Protected variables do not work with .dynbss. The copy in | |
5706 | .dynbss won't be used by the shared library with the protected | |
5707 | definition for the variable. Editing to PIC, or text relocations | |
5708 | are preferable to an incorrect program. */ | |
5709 | if (h->protected_def) | |
5710 | { | |
5711 | if (ELIMINATE_COPY_RELOCS | |
5712 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
5713 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
5714 | && htab->params->pic_fixup == 0 | |
5715 | && info->disable_target_specific_optimizations <= 1) | |
5716 | htab->params->pic_fixup = 1; | |
5717 | h->non_got_ref = 0; | |
5718 | return TRUE; | |
5719 | } | |
25dbc73a | 5720 | |
a127494f AM |
5721 | /* If -z nocopyreloc was given, we won't generate them either. */ |
5722 | if (info->nocopyreloc) | |
5723 | { | |
5724 | h->non_got_ref = 0; | |
5725 | return TRUE; | |
5726 | } | |
5727 | ||
cfd2c773 NS |
5728 | /* If we didn't find any dynamic relocs in read-only sections, then |
5729 | we'll be keeping the dynamic relocs and avoiding the copy reloc. | |
5730 | We can't do this if there are any small data relocations. This | |
5731 | doesn't work on VxWorks, where we can not have dynamic | |
5732 | relocations (other than copy and jump slot relocations) in an | |
5733 | executable. */ | |
4dc4a9a5 | 5734 | if (ELIMINATE_COPY_RELOCS |
cfd2c773 | 5735 | && !ppc_elf_hash_entry (h)->has_sda_refs |
625af618 AM |
5736 | && !htab->is_vxworks |
5737 | && !h->def_regular | |
5738 | && !readonly_dynrelocs (h)) | |
25dbc73a | 5739 | { |
625af618 AM |
5740 | h->non_got_ref = 0; |
5741 | return TRUE; | |
252b5132 RH |
5742 | } |
5743 | ||
25dbc73a AM |
5744 | /* We must allocate the symbol in our .dynbss section, which will |
5745 | become part of the .bss section of the executable. There will be | |
5746 | an entry for this symbol in the .dynsym section. The dynamic | |
5747 | object will contain position independent code, so all references | |
5748 | from the dynamic object to this symbol will go through the global | |
5749 | offset table. The dynamic linker will use the .dynsym entry to | |
5750 | determine the address it must put in the global offset table, so | |
5751 | both the dynamic object and the regular object will refer to the | |
5752 | same memory location for the variable. | |
5753 | ||
4dc4a9a5 DJ |
5754 | Of course, if the symbol is referenced using SDAREL relocs, we |
5755 | must instead allocate it in .sbss. */ | |
25dbc73a | 5756 | |
4dc4a9a5 | 5757 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5758 | s = htab->dynsbss; |
5759 | else | |
5760 | s = htab->dynbss; | |
5761 | BFD_ASSERT (s != NULL); | |
5762 | ||
5763 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
5764 | copy the initial value out of the dynamic object and into the | |
5765 | runtime process image. We need to remember the offset into the | |
5766 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 5767 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
25dbc73a AM |
5768 | { |
5769 | asection *srel; | |
5770 | ||
4dc4a9a5 | 5771 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5772 | srel = htab->relsbss; |
5773 | else | |
5774 | srel = htab->relbss; | |
5775 | BFD_ASSERT (srel != NULL); | |
5776 | srel->size += sizeof (Elf32_External_Rela); | |
5777 | h->needs_copy = 1; | |
5778 | } | |
7619e7c7 | 5779 | |
6cabe1ea | 5780 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
25dbc73a AM |
5781 | } |
5782 | \f | |
ac39eb42 AM |
5783 | /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is |
5784 | xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, | |
5785 | specifying the addend on the plt relocation. For -fpic code, the sym | |
5786 | is xxxxxxxx.plt_pic32.<callee>, and for -fPIC | |
5787 | xxxxxxxx.got2.plt_pic32.<callee>. */ | |
0ba07910 AM |
5788 | |
5789 | static bfd_boolean | |
5790 | add_stub_sym (struct plt_entry *ent, | |
5791 | struct elf_link_hash_entry *h, | |
ac39eb42 | 5792 | struct bfd_link_info *info) |
0ba07910 AM |
5793 | { |
5794 | struct elf_link_hash_entry *sh; | |
5795 | size_t len1, len2, len3; | |
5796 | char *name; | |
ac39eb42 AM |
5797 | const char *stub; |
5798 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
5799 | ||
0e1862bb | 5800 | if (bfd_link_pic (info)) |
ac39eb42 AM |
5801 | stub = ".plt_pic32."; |
5802 | else | |
5803 | stub = ".plt_call32."; | |
0ba07910 AM |
5804 | |
5805 | len1 = strlen (h->root.root.string); | |
ac39eb42 | 5806 | len2 = strlen (stub); |
0ba07910 AM |
5807 | len3 = 0; |
5808 | if (ent->sec) | |
5809 | len3 = strlen (ent->sec->name); | |
ac39eb42 | 5810 | name = bfd_malloc (len1 + len2 + len3 + 9); |
0ba07910 AM |
5811 | if (name == NULL) |
5812 | return FALSE; | |
5813 | sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); | |
5814 | if (ent->sec) | |
5815 | memcpy (name + 8, ent->sec->name, len3); | |
ac39eb42 AM |
5816 | memcpy (name + 8 + len3, stub, len2); |
5817 | memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); | |
0ba07910 AM |
5818 | sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); |
5819 | if (sh == NULL) | |
5820 | return FALSE; | |
5821 | if (sh->root.type == bfd_link_hash_new) | |
5822 | { | |
5823 | sh->root.type = bfd_link_hash_defined; | |
5824 | sh->root.u.def.section = htab->glink; | |
5825 | sh->root.u.def.value = ent->glink_offset; | |
5826 | sh->ref_regular = 1; | |
5827 | sh->def_regular = 1; | |
5828 | sh->ref_regular_nonweak = 1; | |
5829 | sh->forced_local = 1; | |
5830 | sh->non_elf = 0; | |
2ec55de3 | 5831 | sh->root.linker_def = 1; |
0ba07910 AM |
5832 | } |
5833 | return TRUE; | |
5834 | } | |
5835 | ||
3b36f7e6 AM |
5836 | /* Allocate NEED contiguous space in .got, and return the offset. |
5837 | Handles allocation of the got header when crossing 32k. */ | |
5838 | ||
5839 | static bfd_vma | |
5840 | allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) | |
5841 | { | |
5842 | bfd_vma where; | |
4a3dc543 | 5843 | unsigned int max_before_header; |
3b36f7e6 | 5844 | |
4a3dc543 | 5845 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
5846 | { |
5847 | where = htab->got->size; | |
5848 | htab->got->size += need; | |
5849 | } | |
3b36f7e6 AM |
5850 | else |
5851 | { | |
4a3dc543 RS |
5852 | max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; |
5853 | if (need <= htab->got_gap) | |
3b36f7e6 | 5854 | { |
4a3dc543 RS |
5855 | where = max_before_header - htab->got_gap; |
5856 | htab->got_gap -= need; | |
5857 | } | |
5858 | else | |
5859 | { | |
5860 | if (htab->got->size + need > max_before_header | |
5861 | && htab->got->size <= max_before_header) | |
5862 | { | |
5863 | htab->got_gap = max_before_header - htab->got->size; | |
5864 | htab->got->size = max_before_header + htab->got_header_size; | |
5865 | } | |
5866 | where = htab->got->size; | |
5867 | htab->got->size += need; | |
3b36f7e6 | 5868 | } |
3b36f7e6 AM |
5869 | } |
5870 | return where; | |
5871 | } | |
5872 | ||
25dbc73a | 5873 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
252b5132 | 5874 | |
b34976b6 | 5875 | static bfd_boolean |
25dbc73a | 5876 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
252b5132 | 5877 | { |
25dbc73a AM |
5878 | struct bfd_link_info *info = inf; |
5879 | struct ppc_elf_link_hash_entry *eh; | |
7619e7c7 | 5880 | struct ppc_elf_link_hash_table *htab; |
6061a67d | 5881 | struct elf_dyn_relocs *p; |
252b5132 | 5882 | |
25dbc73a | 5883 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5884 | return TRUE; |
252b5132 | 5885 | |
7619e7c7 | 5886 | htab = ppc_elf_hash_table (info); |
e054468f AM |
5887 | if (htab->elf.dynamic_sections_created |
5888 | || h->type == STT_GNU_IFUNC) | |
252b5132 | 5889 | { |
a6aa5195 AM |
5890 | struct plt_entry *ent; |
5891 | bfd_boolean doneone = FALSE; | |
28e99bb6 | 5892 | bfd_vma plt_offset = 0, glink_offset = 0; |
e054468f | 5893 | bfd_boolean dyn; |
28e99bb6 | 5894 | |
a6aa5195 AM |
5895 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5896 | if (ent->plt.refcount > 0) | |
5897 | { | |
5898 | /* Make sure this symbol is output as a dynamic symbol. */ | |
5899 | if (h->dynindx == -1 | |
e054468f AM |
5900 | && !h->forced_local |
5901 | && !h->def_regular | |
5902 | && htab->elf.dynamic_sections_created) | |
a6aa5195 AM |
5903 | { |
5904 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5905 | return FALSE; | |
5906 | } | |
252b5132 | 5907 | |
e054468f | 5908 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 5909 | if (bfd_link_pic (info) |
e054468f AM |
5910 | || h->type == STT_GNU_IFUNC |
5911 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
a6aa5195 AM |
5912 | { |
5913 | asection *s = htab->plt; | |
25f23106 | 5914 | if (!dyn || h->dynindx == -1) |
e054468f | 5915 | s = htab->iplt; |
7619e7c7 | 5916 | |
25f23106 | 5917 | if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1) |
a6aa5195 | 5918 | { |
a6aa5195 | 5919 | if (!doneone) |
28e99bb6 AM |
5920 | { |
5921 | plt_offset = s->size; | |
5922 | s->size += 4; | |
5923 | } | |
5924 | ent->plt.offset = plt_offset; | |
d7128ce4 | 5925 | |
a6aa5195 | 5926 | s = htab->glink; |
0e1862bb | 5927 | if (!doneone || bfd_link_pic (info)) |
28e99bb6 AM |
5928 | { |
5929 | glink_offset = s->size; | |
5930 | s->size += GLINK_ENTRY_SIZE; | |
a7f2871e | 5931 | if (h == htab->tls_get_addr |
5446cbdf | 5932 | && !htab->params->no_tls_get_addr_opt) |
a7f2871e | 5933 | s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE; |
28e99bb6 AM |
5934 | } |
5935 | if (!doneone | |
0e1862bb | 5936 | && !bfd_link_pic (info) |
625af618 | 5937 | && h->def_dynamic |
a6aa5195 AM |
5938 | && !h->def_regular) |
5939 | { | |
5940 | h->root.u.def.section = s; | |
28e99bb6 | 5941 | h->root.u.def.value = glink_offset; |
a6aa5195 | 5942 | } |
28e99bb6 | 5943 | ent->glink_offset = glink_offset; |
0ba07910 | 5944 | |
5446cbdf | 5945 | if (htab->params->emit_stub_syms |
ac39eb42 | 5946 | && !add_stub_sym (ent, h, info)) |
0ba07910 | 5947 | return FALSE; |
a6aa5195 AM |
5948 | } |
5949 | else | |
5950 | { | |
a6aa5195 AM |
5951 | if (!doneone) |
5952 | { | |
28e99bb6 AM |
5953 | /* If this is the first .plt entry, make room |
5954 | for the special first entry. */ | |
5955 | if (s->size == 0) | |
9d8504b1 | 5956 | s->size += htab->plt_initial_entry_size; |
28e99bb6 AM |
5957 | |
5958 | /* The PowerPC PLT is actually composed of two | |
5959 | parts, the first part is 2 words (for a load | |
5960 | and a jump), and then there is a remaining | |
5961 | word available at the end. */ | |
9d8504b1 PB |
5962 | plt_offset = (htab->plt_initial_entry_size |
5963 | + (htab->plt_slot_size | |
5964 | * ((s->size | |
5965 | - htab->plt_initial_entry_size) | |
5966 | / htab->plt_entry_size))); | |
28e99bb6 AM |
5967 | |
5968 | /* If this symbol is not defined in a regular | |
5969 | file, and we are not generating a shared | |
5b914448 | 5970 | library, then set the symbol to this location |
de972ffa AM |
5971 | in the .plt. This is to avoid text |
5972 | relocations, and is required to make | |
28e99bb6 AM |
5973 | function pointers compare as equal between |
5974 | the normal executable and the shared library. */ | |
0e1862bb | 5975 | if (! bfd_link_pic (info) |
625af618 | 5976 | && h->def_dynamic |
28e99bb6 AM |
5977 | && !h->def_regular) |
5978 | { | |
5979 | h->root.u.def.section = s; | |
5980 | h->root.u.def.value = plt_offset; | |
5981 | } | |
5982 | ||
9d8504b1 PB |
5983 | /* Make room for this entry. */ |
5984 | s->size += htab->plt_entry_size; | |
5985 | /* After the 8192nd entry, room for two entries | |
5986 | is allocated. */ | |
4a3dc543 | 5987 | if (htab->plt_type == PLT_OLD |
9d8504b1 PB |
5988 | && (s->size - htab->plt_initial_entry_size) |
5989 | / htab->plt_entry_size | |
5990 | > PLT_NUM_SINGLE_ENTRIES) | |
5991 | s->size += htab->plt_entry_size; | |
a6aa5195 | 5992 | } |
28e99bb6 | 5993 | ent->plt.offset = plt_offset; |
a6aa5195 | 5994 | } |
25dbc73a | 5995 | |
a6aa5195 AM |
5996 | /* We also need to make an entry in the .rela.plt section. */ |
5997 | if (!doneone) | |
5998 | { | |
25f23106 AM |
5999 | if (!htab->elf.dynamic_sections_created |
6000 | || h->dynindx == -1) | |
e054468f AM |
6001 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
6002 | else | |
9d8504b1 | 6003 | { |
e054468f AM |
6004 | htab->relplt->size += sizeof (Elf32_External_Rela); |
6005 | ||
6006 | if (htab->plt_type == PLT_VXWORKS) | |
9d8504b1 | 6007 | { |
e054468f | 6008 | /* Allocate space for the unloaded relocations. */ |
0e1862bb | 6009 | if (!bfd_link_pic (info) |
e054468f | 6010 | && htab->elf.dynamic_sections_created) |
9d8504b1 | 6011 | { |
e054468f AM |
6012 | if (ent->plt.offset |
6013 | == (bfd_vma) htab->plt_initial_entry_size) | |
6014 | { | |
6015 | htab->srelplt2->size | |
6016 | += (sizeof (Elf32_External_Rela) | |
6017 | * VXWORKS_PLTRESOLVE_RELOCS); | |
6018 | } | |
6019 | ||
9d8504b1 | 6020 | htab->srelplt2->size |
e054468f AM |
6021 | += (sizeof (Elf32_External_Rela) |
6022 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS); | |
9d8504b1 PB |
6023 | } |
6024 | ||
e054468f AM |
6025 | /* Every PLT entry has an associated GOT entry in |
6026 | .got.plt. */ | |
6027 | htab->sgotplt->size += 4; | |
9d8504b1 | 6028 | } |
9d8504b1 | 6029 | } |
a6aa5195 AM |
6030 | doneone = TRUE; |
6031 | } | |
6032 | } | |
6033 | else | |
6034 | ent->plt.offset = (bfd_vma) -1; | |
a6aa5195 | 6035 | } |
2ce859a1 AM |
6036 | else |
6037 | ent->plt.offset = (bfd_vma) -1; | |
6038 | ||
6039 | if (!doneone) | |
6040 | { | |
6041 | h->plt.plist = NULL; | |
6042 | h->needs_plt = 0; | |
6043 | } | |
25dbc73a AM |
6044 | } |
6045 | else | |
6046 | { | |
a6aa5195 | 6047 | h->plt.plist = NULL; |
25dbc73a AM |
6048 | h->needs_plt = 0; |
6049 | } | |
6050 | ||
6051 | eh = (struct ppc_elf_link_hash_entry *) h; | |
d3e454b9 AM |
6052 | if (eh->elf.got.refcount > 0 |
6053 | || (ELIMINATE_COPY_RELOCS | |
6054 | && !eh->elf.def_regular | |
6055 | && eh->elf.protected_def | |
6056 | && eh->has_addr16_ha | |
6057 | && eh->has_addr16_lo | |
6058 | && htab->params->pic_fixup > 0)) | |
25dbc73a | 6059 | { |
d6e14abc AM |
6060 | bfd_boolean dyn; |
6061 | unsigned int need; | |
6062 | ||
25dbc73a AM |
6063 | /* Make sure this symbol is output as a dynamic symbol. */ |
6064 | if (eh->elf.dynindx == -1 | |
b099ab9f | 6065 | && !eh->elf.forced_local |
25f23106 | 6066 | && eh->elf.type != STT_GNU_IFUNC |
b099ab9f | 6067 | && htab->elf.dynamic_sections_created) |
25dbc73a AM |
6068 | { |
6069 | if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) | |
b34976b6 | 6070 | return FALSE; |
25dbc73a | 6071 | } |
252b5132 | 6072 | |
d6e14abc AM |
6073 | need = 0; |
6074 | if ((eh->tls_mask & TLS_TLS) != 0) | |
25dbc73a | 6075 | { |
d6e14abc | 6076 | if ((eh->tls_mask & TLS_LD) != 0) |
252b5132 | 6077 | { |
d6e14abc AM |
6078 | if (!eh->elf.def_dynamic) |
6079 | /* We'll just use htab->tlsld_got.offset. This should | |
6080 | always be the case. It's a little odd if we have | |
6081 | a local dynamic reloc against a non-local symbol. */ | |
6082 | htab->tlsld_got.refcount += 1; | |
6083 | else | |
3b36f7e6 | 6084 | need += 8; |
252b5132 | 6085 | } |
d6e14abc AM |
6086 | if ((eh->tls_mask & TLS_GD) != 0) |
6087 | need += 8; | |
6088 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6089 | need += 4; | |
6090 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3b36f7e6 | 6091 | need += 4; |
d6e14abc AM |
6092 | } |
6093 | else | |
6094 | need += 4; | |
6095 | if (need == 0) | |
6096 | eh->elf.got.offset = (bfd_vma) -1; | |
6097 | else | |
6098 | { | |
3b36f7e6 | 6099 | eh->elf.got.offset = allocate_got (htab, need); |
25dbc73a | 6100 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 6101 | if ((bfd_link_pic (info) |
25dbc73a AM |
6102 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) |
6103 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
6104 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
252b5132 | 6105 | { |
91e21fb7 | 6106 | asection *rsec = htab->relgot; |
0bed072f AM |
6107 | |
6108 | if (eh->elf.type == STT_GNU_IFUNC) | |
6109 | rsec = htab->reliplt; | |
3b36f7e6 AM |
6110 | /* All the entries we allocated need relocs. |
6111 | Except LD only needs one. */ | |
d6e14abc AM |
6112 | if ((eh->tls_mask & TLS_LD) != 0 |
6113 | && eh->elf.def_dynamic) | |
3b36f7e6 | 6114 | need -= 4; |
25f23106 | 6115 | rsec->size += need * (sizeof (Elf32_External_Rela) / 4); |
252b5132 | 6116 | } |
25dbc73a AM |
6117 | } |
6118 | } | |
6119 | else | |
6120 | eh->elf.got.offset = (bfd_vma) -1; | |
252b5132 | 6121 | |
b099ab9f | 6122 | if (eh->dyn_relocs == NULL |
de972ffa | 6123 | || !htab->elf.dynamic_sections_created) |
25dbc73a | 6124 | return TRUE; |
252b5132 | 6125 | |
25dbc73a AM |
6126 | /* In the shared -Bsymbolic case, discard space allocated for |
6127 | dynamic pc-relative relocs against symbols which turn out to be | |
6128 | defined in regular objects. For the normal shared case, discard | |
6129 | space for relocs that have become local due to symbol visibility | |
6130 | changes. */ | |
6131 | ||
0e1862bb | 6132 | if (bfd_link_pic (info)) |
25dbc73a AM |
6133 | { |
6134 | /* Relocs that use pc_count are those that appear on a call insn, | |
1d483afe | 6135 | or certain REL relocs (see must_be_dyn_reloc) that can be |
25dbc73a AM |
6136 | generated via assembly. We want calls to protected symbols to |
6137 | resolve directly to the function rather than going via the plt. | |
6138 | If people want function pointer comparisons to work as expected | |
6139 | then they should avoid writing weird assembly. */ | |
6140 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
6141 | { | |
6061a67d | 6142 | struct elf_dyn_relocs **pp; |
25dbc73a AM |
6143 | |
6144 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
252b5132 | 6145 | { |
25dbc73a AM |
6146 | p->count -= p->pc_count; |
6147 | p->pc_count = 0; | |
6148 | if (p->count == 0) | |
6149 | *pp = p->next; | |
6150 | else | |
6151 | pp = &p->next; | |
252b5132 | 6152 | } |
25dbc73a | 6153 | } |
252b5132 | 6154 | |
3348747a NS |
6155 | if (htab->is_vxworks) |
6156 | { | |
6061a67d | 6157 | struct elf_dyn_relocs **pp; |
3348747a NS |
6158 | |
6159 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
6160 | { | |
6161 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
6162 | *pp = p->next; | |
6163 | else | |
6164 | pp = &p->next; | |
6165 | } | |
6166 | } | |
6167 | ||
89200bf8 AM |
6168 | /* Discard relocs on undefined symbols that must be local. */ |
6169 | if (eh->dyn_relocs != NULL | |
6170 | && h->root.type == bfd_link_hash_undefined | |
6171 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
6172 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
6173 | eh->dyn_relocs = NULL; | |
6174 | ||
25dbc73a AM |
6175 | /* Also discard relocs on undefined weak syms with non-default |
6176 | visibility. */ | |
cab87ef9 AM |
6177 | if (eh->dyn_relocs != NULL |
6178 | && h->root.type == bfd_link_hash_undefweak) | |
25dbc73a | 6179 | { |
dfbb6ac9 AM |
6180 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
6181 | eh->dyn_relocs = NULL; | |
6182 | ||
6183 | /* Make sure undefined weak symbols are output as a dynamic | |
6184 | symbol in PIEs. */ | |
6185 | else if (h->dynindx == -1 | |
e054468f AM |
6186 | && !h->forced_local |
6187 | && !h->def_regular) | |
dfbb6ac9 AM |
6188 | { |
6189 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6190 | return FALSE; | |
6191 | } | |
25dbc73a AM |
6192 | } |
6193 | } | |
6194 | else if (ELIMINATE_COPY_RELOCS) | |
6195 | { | |
6196 | /* For the non-shared case, discard space for relocs against | |
6197 | symbols which turn out to need copy relocs or are not | |
6198 | dynamic. */ | |
7619e7c7 | 6199 | |
25dbc73a | 6200 | if (!h->non_got_ref |
d3e454b9 AM |
6201 | && !h->def_regular |
6202 | && !(h->protected_def | |
6203 | && eh->has_addr16_ha | |
6204 | && eh->has_addr16_lo | |
6205 | && htab->params->pic_fixup > 0)) | |
25dbc73a AM |
6206 | { |
6207 | /* Make sure this symbol is output as a dynamic symbol. | |
6208 | Undefined weak syms won't yet be marked as dynamic. */ | |
6209 | if (h->dynindx == -1 | |
25f23106 | 6210 | && !h->forced_local) |
25dbc73a AM |
6211 | { |
6212 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6213 | return FALSE; | |
6214 | } | |
7619e7c7 | 6215 | |
25dbc73a AM |
6216 | /* If that succeeded, we know we'll be keeping all the |
6217 | relocs. */ | |
6218 | if (h->dynindx != -1) | |
6219 | goto keep; | |
6220 | } | |
252b5132 | 6221 | |
25dbc73a | 6222 | eh->dyn_relocs = NULL; |
252b5132 | 6223 | |
25dbc73a AM |
6224 | keep: ; |
6225 | } | |
252b5132 | 6226 | |
25dbc73a AM |
6227 | /* Finally, allocate space. */ |
6228 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
6229 | { | |
6230 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
f95f8542 | 6231 | if (eh->elf.type == STT_GNU_IFUNC) |
25f23106 | 6232 | sreloc = htab->reliplt; |
25dbc73a AM |
6233 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
6234 | } | |
252b5132 | 6235 | |
25dbc73a AM |
6236 | return TRUE; |
6237 | } | |
7619e7c7 | 6238 | |
625af618 AM |
6239 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
6240 | read-only sections. */ | |
7619e7c7 | 6241 | |
25dbc73a | 6242 | static bfd_boolean |
625af618 | 6243 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) |
25dbc73a | 6244 | { |
25dbc73a AM |
6245 | if (h->root.type == bfd_link_hash_indirect) |
6246 | return TRUE; | |
252b5132 | 6247 | |
625af618 | 6248 | if (readonly_dynrelocs (h)) |
25dbc73a | 6249 | { |
625af618 | 6250 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; |
ee05f2fe | 6251 | |
625af618 AM |
6252 | /* Not an error, just cut short the traversal. */ |
6253 | return FALSE; | |
25dbc73a AM |
6254 | } |
6255 | return TRUE; | |
6256 | } | |
6257 | ||
6177242a AM |
6258 | static const unsigned char glink_eh_frame_cie[] = |
6259 | { | |
6260 | 0, 0, 0, 16, /* length. */ | |
6261 | 0, 0, 0, 0, /* id. */ | |
6262 | 1, /* CIE version. */ | |
6263 | 'z', 'R', 0, /* Augmentation string. */ | |
6264 | 4, /* Code alignment. */ | |
6265 | 0x7c, /* Data alignment. */ | |
6266 | 65, /* RA reg. */ | |
6267 | 1, /* Augmentation size. */ | |
6268 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
6269 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
6270 | }; | |
6271 | ||
25dbc73a AM |
6272 | /* Set the sizes of the dynamic sections. */ |
6273 | ||
6274 | static bfd_boolean | |
93d1b056 | 6275 | ppc_elf_size_dynamic_sections (bfd *output_bfd, |
25dbc73a AM |
6276 | struct bfd_link_info *info) |
6277 | { | |
6278 | struct ppc_elf_link_hash_table *htab; | |
6279 | asection *s; | |
6280 | bfd_boolean relocs; | |
6281 | bfd *ibfd; | |
7fce784e | 6282 | |
252b5132 | 6283 | #ifdef DEBUG |
25dbc73a | 6284 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
252b5132 | 6285 | #endif |
252b5132 | 6286 | |
25dbc73a AM |
6287 | htab = ppc_elf_hash_table (info); |
6288 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 | 6289 | |
25dbc73a AM |
6290 | if (elf_hash_table (info)->dynamic_sections_created) |
6291 | { | |
6292 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 6293 | if (bfd_link_executable (info) && !info->nointerp) |
25dbc73a | 6294 | { |
3d4d4302 | 6295 | s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); |
25dbc73a AM |
6296 | BFD_ASSERT (s != NULL); |
6297 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
6298 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
6299 | } | |
6300 | } | |
252b5132 | 6301 | |
4a3dc543 | 6302 | if (htab->plt_type == PLT_OLD) |
d7128ce4 | 6303 | htab->got_header_size = 16; |
4a3dc543 | 6304 | else if (htab->plt_type == PLT_NEW) |
d7128ce4 | 6305 | htab->got_header_size = 12; |
252b5132 | 6306 | |
25dbc73a AM |
6307 | /* Set up .got offsets for local syms, and space for local dynamic |
6308 | relocs. */ | |
c72f2fb2 | 6309 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
25dbc73a AM |
6310 | { |
6311 | bfd_signed_vma *local_got; | |
6312 | bfd_signed_vma *end_local_got; | |
e054468f AM |
6313 | struct plt_entry **local_plt; |
6314 | struct plt_entry **end_local_plt; | |
25dbc73a AM |
6315 | char *lgot_masks; |
6316 | bfd_size_type locsymcount; | |
6317 | Elf_Internal_Shdr *symtab_hdr; | |
7fce784e | 6318 | |
0c8d6e5c | 6319 | if (!is_ppc_elf (ibfd)) |
25dbc73a | 6320 | continue; |
7fce784e | 6321 | |
25dbc73a AM |
6322 | for (s = ibfd->sections; s != NULL; s = s->next) |
6323 | { | |
f95f8542 | 6324 | struct ppc_dyn_relocs *p; |
252b5132 | 6325 | |
f95f8542 | 6326 | for (p = ((struct ppc_dyn_relocs *) |
25dbc73a AM |
6327 | elf_section_data (s)->local_dynrel); |
6328 | p != NULL; | |
6329 | p = p->next) | |
6330 | { | |
6331 | if (!bfd_is_abs_section (p->sec) | |
6332 | && bfd_is_abs_section (p->sec->output_section)) | |
6333 | { | |
6334 | /* Input section has been discarded, either because | |
6335 | it is a copy of a linkonce section or due to | |
6336 | linker script /DISCARD/, so we'll be discarding | |
6337 | the relocs too. */ | |
7fce784e | 6338 | } |
3348747a NS |
6339 | else if (htab->is_vxworks |
6340 | && strcmp (p->sec->output_section->name, | |
6341 | ".tls_vars") == 0) | |
6342 | { | |
6343 | /* Relocations in vxworks .tls_vars sections are | |
6344 | handled specially by the loader. */ | |
6345 | } | |
25dbc73a | 6346 | else if (p->count != 0) |
7fce784e | 6347 | { |
25f23106 | 6348 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
f95f8542 | 6349 | if (p->ifunc) |
25f23106 AM |
6350 | sreloc = htab->reliplt; |
6351 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
25dbc73a AM |
6352 | if ((p->sec->output_section->flags |
6353 | & (SEC_READONLY | SEC_ALLOC)) | |
6354 | == (SEC_READONLY | SEC_ALLOC)) | |
6355 | info->flags |= DF_TEXTREL; | |
7fce784e | 6356 | } |
252b5132 | 6357 | } |
252b5132 | 6358 | } |
252b5132 | 6359 | |
25dbc73a AM |
6360 | local_got = elf_local_got_refcounts (ibfd); |
6361 | if (!local_got) | |
6362 | continue; | |
252b5132 | 6363 | |
0ffa91dd | 6364 | symtab_hdr = &elf_symtab_hdr (ibfd); |
25dbc73a AM |
6365 | locsymcount = symtab_hdr->sh_info; |
6366 | end_local_got = local_got + locsymcount; | |
e054468f AM |
6367 | local_plt = (struct plt_entry **) end_local_got; |
6368 | end_local_plt = local_plt + locsymcount; | |
6369 | lgot_masks = (char *) end_local_plt; | |
91d6fa6a | 6370 | |
25dbc73a AM |
6371 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
6372 | if (*local_got > 0) | |
6373 | { | |
d6e14abc AM |
6374 | unsigned int need = 0; |
6375 | if ((*lgot_masks & TLS_TLS) != 0) | |
25dbc73a | 6376 | { |
d6e14abc AM |
6377 | if ((*lgot_masks & TLS_GD) != 0) |
6378 | need += 8; | |
6379 | if ((*lgot_masks & TLS_LD) != 0) | |
6380 | htab->tlsld_got.refcount += 1; | |
6381 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6382 | need += 4; | |
6383 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
6384 | need += 4; | |
25dbc73a | 6385 | } |
d6e14abc AM |
6386 | else |
6387 | need += 4; | |
6388 | if (need == 0) | |
6389 | *local_got = (bfd_vma) -1; | |
25dbc73a AM |
6390 | else |
6391 | { | |
3b36f7e6 | 6392 | *local_got = allocate_got (htab, need); |
0e1862bb | 6393 | if (bfd_link_pic (info)) |
0bed072f AM |
6394 | { |
6395 | asection *srel = htab->relgot; | |
6396 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
6397 | srel = htab->reliplt; | |
6398 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); | |
6399 | } | |
25dbc73a AM |
6400 | } |
6401 | } | |
6402 | else | |
6403 | *local_got = (bfd_vma) -1; | |
e054468f AM |
6404 | |
6405 | if (htab->is_vxworks) | |
6406 | continue; | |
6407 | ||
6408 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
6409 | for (; local_plt < end_local_plt; ++local_plt) | |
6410 | { | |
6411 | struct plt_entry *ent; | |
6412 | bfd_boolean doneone = FALSE; | |
6413 | bfd_vma plt_offset = 0, glink_offset = 0; | |
6414 | ||
6415 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
6416 | if (ent->plt.refcount > 0) | |
6417 | { | |
91d6fa6a | 6418 | s = htab->iplt; |
e054468f AM |
6419 | |
6420 | if (!doneone) | |
6421 | { | |
6422 | plt_offset = s->size; | |
6423 | s->size += 4; | |
6424 | } | |
6425 | ent->plt.offset = plt_offset; | |
6426 | ||
6427 | s = htab->glink; | |
0e1862bb | 6428 | if (!doneone || bfd_link_pic (info)) |
e054468f AM |
6429 | { |
6430 | glink_offset = s->size; | |
6431 | s->size += GLINK_ENTRY_SIZE; | |
6432 | } | |
6433 | ent->glink_offset = glink_offset; | |
6434 | ||
6435 | if (!doneone) | |
6436 | { | |
25f23106 | 6437 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
e054468f AM |
6438 | doneone = TRUE; |
6439 | } | |
6440 | } | |
6441 | else | |
6442 | ent->plt.offset = (bfd_vma) -1; | |
6443 | } | |
25dbc73a | 6444 | } |
252b5132 | 6445 | |
b7fcf6f6 AM |
6446 | /* Allocate space for global sym dynamic relocs. */ |
6447 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
6448 | ||
3b36f7e6 AM |
6449 | if (htab->tlsld_got.refcount > 0) |
6450 | { | |
6451 | htab->tlsld_got.offset = allocate_got (htab, 8); | |
0e1862bb | 6452 | if (bfd_link_pic (info)) |
3b36f7e6 AM |
6453 | htab->relgot->size += sizeof (Elf32_External_Rela); |
6454 | } | |
6455 | else | |
6456 | htab->tlsld_got.offset = (bfd_vma) -1; | |
6457 | ||
4a3dc543 | 6458 | if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) |
3b36f7e6 AM |
6459 | { |
6460 | unsigned int g_o_t = 32768; | |
6461 | ||
4d962050 AM |
6462 | /* If we haven't allocated the header, do so now. When we get here, |
6463 | for old plt/got the got size will be 0 to 32764 (not allocated), | |
6464 | or 32780 to 65536 (header allocated). For new plt/got, the | |
6465 | corresponding ranges are 0 to 32768 and 32780 to 65536. */ | |
3b36f7e6 AM |
6466 | if (htab->got->size <= 32768) |
6467 | { | |
6468 | g_o_t = htab->got->size; | |
4a3dc543 | 6469 | if (htab->plt_type == PLT_OLD) |
4d962050 | 6470 | g_o_t += 4; |
3b36f7e6 AM |
6471 | htab->got->size += htab->got_header_size; |
6472 | } | |
3b36f7e6 AM |
6473 | |
6474 | htab->elf.hgot->root.u.def.value = g_o_t; | |
6475 | } | |
0e1862bb | 6476 | if (bfd_link_pic (info)) |
bd6c6e2b AM |
6477 | { |
6478 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
93d1b056 AM |
6479 | |
6480 | sda->root.u.def.section = htab->elf.hgot->root.u.def.section; | |
6481 | sda->root.u.def.value = htab->elf.hgot->root.u.def.value; | |
bd6c6e2b | 6482 | } |
15bfcc77 AM |
6483 | if (info->emitrelocations) |
6484 | { | |
6485 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
6486 | ||
6487 | if (sda != NULL && sda->ref_regular) | |
6488 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6489 | sda = htab->sdata[1].sym; | |
6490 | if (sda != NULL && sda->ref_regular) | |
6491 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6492 | } | |
3b36f7e6 | 6493 | |
e054468f AM |
6494 | if (htab->glink != NULL |
6495 | && htab->glink->size != 0 | |
6496 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
6497 | { |
6498 | htab->glink_pltresolve = htab->glink->size; | |
888a7fc3 AM |
6499 | /* Space for the branch table. ??? We don't need entries for |
6500 | non-dynamic symbols in this table. This case can arise with | |
6501 | static ifuncs or forced local ifuncs. */ | |
86b9da88 AM |
6502 | htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; |
6503 | /* Pad out to align the start of PLTresolve. */ | |
5446cbdf AM |
6504 | htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround |
6505 | ? 63 : 15); | |
d7128ce4 | 6506 | htab->glink->size += GLINK_PLTRESOLVE; |
0ba07910 | 6507 | |
5446cbdf | 6508 | if (htab->params->emit_stub_syms) |
0ba07910 AM |
6509 | { |
6510 | struct elf_link_hash_entry *sh; | |
6511 | sh = elf_link_hash_lookup (&htab->elf, "__glink", | |
6512 | TRUE, FALSE, FALSE); | |
6513 | if (sh == NULL) | |
6514 | return FALSE; | |
6515 | if (sh->root.type == bfd_link_hash_new) | |
6516 | { | |
6517 | sh->root.type = bfd_link_hash_defined; | |
6518 | sh->root.u.def.section = htab->glink; | |
6519 | sh->root.u.def.value = htab->glink_pltresolve; | |
6520 | sh->ref_regular = 1; | |
6521 | sh->def_regular = 1; | |
6522 | sh->ref_regular_nonweak = 1; | |
6523 | sh->forced_local = 1; | |
6524 | sh->non_elf = 0; | |
2ec55de3 | 6525 | sh->root.linker_def = 1; |
0ba07910 AM |
6526 | } |
6527 | sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", | |
6528 | TRUE, FALSE, FALSE); | |
6529 | if (sh == NULL) | |
6530 | return FALSE; | |
6531 | if (sh->root.type == bfd_link_hash_new) | |
6532 | { | |
6533 | sh->root.type = bfd_link_hash_defined; | |
6534 | sh->root.u.def.section = htab->glink; | |
6535 | sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; | |
6536 | sh->ref_regular = 1; | |
6537 | sh->def_regular = 1; | |
6538 | sh->ref_regular_nonweak = 1; | |
6539 | sh->forced_local = 1; | |
6540 | sh->non_elf = 0; | |
2ec55de3 | 6541 | sh->root.linker_def = 1; |
0ba07910 AM |
6542 | } |
6543 | } | |
d7128ce4 AM |
6544 | } |
6545 | ||
6177242a AM |
6546 | if (htab->glink != NULL |
6547 | && htab->glink->size != 0 | |
6548 | && htab->glink_eh_frame != NULL | |
9a2a56cc AM |
6549 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) |
6550 | && _bfd_elf_eh_frame_present (info)) | |
6177242a AM |
6551 | { |
6552 | s = htab->glink_eh_frame; | |
6553 | s->size = sizeof (glink_eh_frame_cie) + 20; | |
0e1862bb | 6554 | if (bfd_link_pic (info)) |
6177242a AM |
6555 | { |
6556 | s->size += 4; | |
6557 | if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256) | |
6558 | s->size += 4; | |
6559 | } | |
6560 | } | |
6561 | ||
25dbc73a AM |
6562 | /* We've now determined the sizes of the various dynamic sections. |
6563 | Allocate memory for them. */ | |
6564 | relocs = FALSE; | |
6565 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 6566 | { |
9d8504b1 PB |
6567 | bfd_boolean strip_section = TRUE; |
6568 | ||
25dbc73a AM |
6569 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
6570 | continue; | |
252b5132 | 6571 | |
25dbc73a | 6572 | if (s == htab->plt |
e054468f | 6573 | || s == htab->got) |
25dbc73a | 6574 | { |
9d8504b1 PB |
6575 | /* We'd like to strip these sections if they aren't needed, but if |
6576 | we've exported dynamic symbols from them we must leave them. | |
6577 | It's too late to tell BFD to get rid of the symbols. */ | |
e054468f | 6578 | if (htab->elf.hplt != NULL) |
9d8504b1 | 6579 | strip_section = FALSE; |
25dbc73a AM |
6580 | /* Strip this section if we don't need it; see the |
6581 | comment below. */ | |
6582 | } | |
e054468f AM |
6583 | else if (s == htab->iplt |
6584 | || s == htab->glink | |
6177242a | 6585 | || s == htab->glink_eh_frame |
e054468f AM |
6586 | || s == htab->sgotplt |
6587 | || s == htab->sbss | |
6588 | || s == htab->dynbss | |
15bfcc77 | 6589 | || s == htab->dynsbss) |
25dbc73a | 6590 | { |
c9a2f333 | 6591 | /* Strip these too. */ |
25dbc73a | 6592 | } |
15bfcc77 AM |
6593 | else if (s == htab->sdata[0].section |
6594 | || s == htab->sdata[1].section) | |
6595 | { | |
6596 | strip_section = (s->flags & SEC_KEEP) == 0; | |
6597 | } | |
a0f49396 NC |
6598 | else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s), |
6599 | ".rela")) | |
25dbc73a | 6600 | { |
c456f082 | 6601 | if (s->size != 0) |
25dbc73a AM |
6602 | { |
6603 | /* Remember whether there are any relocation sections. */ | |
6604 | relocs = TRUE; | |
252b5132 | 6605 | |
25dbc73a AM |
6606 | /* We use the reloc_count field as a counter if we need |
6607 | to copy relocs into the output file. */ | |
6608 | s->reloc_count = 0; | |
252b5132 RH |
6609 | } |
6610 | } | |
25dbc73a AM |
6611 | else |
6612 | { | |
6613 | /* It's not one of our sections, so don't allocate space. */ | |
6614 | continue; | |
6615 | } | |
252b5132 | 6616 | |
9d8504b1 | 6617 | if (s->size == 0 && strip_section) |
25dbc73a | 6618 | { |
c456f082 AM |
6619 | /* If we don't need this section, strip it from the |
6620 | output file. This is mostly to handle .rela.bss and | |
6621 | .rela.plt. We must create both sections in | |
6622 | create_dynamic_sections, because they must be created | |
6623 | before the linker maps input sections to output | |
6624 | sections. The linker does that before | |
6625 | adjust_dynamic_symbol is called, and it is that | |
6626 | function which decides whether anything needs to go | |
6627 | into these sections. */ | |
8423293d | 6628 | s->flags |= SEC_EXCLUDE; |
25dbc73a AM |
6629 | continue; |
6630 | } | |
7fce784e | 6631 | |
d7128ce4 | 6632 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
644285ef AM |
6633 | continue; |
6634 | ||
25dbc73a AM |
6635 | /* Allocate memory for the section contents. */ |
6636 | s->contents = bfd_zalloc (htab->elf.dynobj, s->size); | |
6637 | if (s->contents == NULL) | |
6638 | return FALSE; | |
6639 | } | |
252b5132 | 6640 | |
25dbc73a | 6641 | if (htab->elf.dynamic_sections_created) |
7619e7c7 | 6642 | { |
25dbc73a AM |
6643 | /* Add some entries to the .dynamic section. We fill in the |
6644 | values later, in ppc_elf_finish_dynamic_sections, but we | |
6645 | must add the entries now so that we get the correct size for | |
6646 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6647 | dynamic linker and used by the debugger. */ | |
6648 | #define add_dynamic_entry(TAG, VAL) \ | |
6649 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
252b5132 | 6650 | |
0e1862bb | 6651 | if (bfd_link_executable (info)) |
7619e7c7 | 6652 | { |
25dbc73a AM |
6653 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
6654 | return FALSE; | |
7619e7c7 AM |
6655 | } |
6656 | ||
25dbc73a | 6657 | if (htab->plt != NULL && htab->plt->size != 0) |
7619e7c7 | 6658 | { |
25dbc73a AM |
6659 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6660 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6661 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
6662 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
6663 | return FALSE; | |
6664 | } | |
7619e7c7 | 6665 | |
c7e17e05 AM |
6666 | if (htab->plt_type == PLT_NEW |
6667 | && htab->glink != NULL | |
6668 | && htab->glink->size != 0) | |
d7128ce4 | 6669 | { |
1fe44d79 | 6670 | if (!add_dynamic_entry (DT_PPC_GOT, 0)) |
d7128ce4 | 6671 | return FALSE; |
5446cbdf | 6672 | if (!htab->params->no_tls_get_addr_opt |
a7f2871e AM |
6673 | && htab->tls_get_addr != NULL |
6674 | && htab->tls_get_addr->plt.plist != NULL | |
e8910a83 | 6675 | && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS)) |
a7f2871e | 6676 | return FALSE; |
d7128ce4 AM |
6677 | } |
6678 | ||
25dbc73a AM |
6679 | if (relocs) |
6680 | { | |
6681 | if (!add_dynamic_entry (DT_RELA, 0) | |
6682 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6683 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
6684 | return FALSE; | |
6685 | } | |
7619e7c7 | 6686 | |
25dbc73a AM |
6687 | /* If any dynamic relocs apply to a read-only section, then we |
6688 | need a DT_TEXTREL entry. */ | |
6689 | if ((info->flags & DF_TEXTREL) == 0) | |
625af618 | 6690 | elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, |
25dbc73a | 6691 | info); |
7619e7c7 | 6692 | |
25dbc73a AM |
6693 | if ((info->flags & DF_TEXTREL) != 0) |
6694 | { | |
6695 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
6696 | return FALSE; | |
7619e7c7 | 6697 | } |
7a2b07ff NS |
6698 | if (htab->is_vxworks |
6699 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
6700 | return FALSE; | |
6701 | } | |
25dbc73a AM |
6702 | #undef add_dynamic_entry |
6703 | ||
7e01508c AM |
6704 | if (htab->glink_eh_frame != NULL |
6705 | && htab->glink_eh_frame->contents != NULL) | |
6706 | { | |
6707 | unsigned char *p = htab->glink_eh_frame->contents; | |
6708 | bfd_vma val; | |
6709 | ||
6710 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
6711 | /* CIE length (rewrite in case little-endian). */ | |
6712 | bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p); | |
6713 | p += sizeof (glink_eh_frame_cie); | |
6714 | /* FDE length. */ | |
6715 | val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie); | |
6716 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6717 | p += 4; | |
6718 | /* CIE pointer. */ | |
6719 | val = p - htab->glink_eh_frame->contents; | |
6720 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6721 | p += 4; | |
6722 | /* Offset to .glink. Set later. */ | |
6723 | p += 4; | |
6724 | /* .glink size. */ | |
6725 | bfd_put_32 (htab->elf.dynobj, htab->glink->size, p); | |
6726 | p += 4; | |
6727 | /* Augmentation. */ | |
6728 | p += 1; | |
6729 | ||
0e1862bb | 6730 | if (bfd_link_pic (info) |
7e01508c AM |
6731 | && htab->elf.dynamic_sections_created) |
6732 | { | |
6733 | bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2; | |
6734 | if (adv < 64) | |
6735 | *p++ = DW_CFA_advance_loc + adv; | |
6736 | else if (adv < 256) | |
6737 | { | |
6738 | *p++ = DW_CFA_advance_loc1; | |
6739 | *p++ = adv; | |
6740 | } | |
6741 | else if (adv < 65536) | |
6742 | { | |
6743 | *p++ = DW_CFA_advance_loc2; | |
6744 | bfd_put_16 (htab->elf.dynobj, adv, p); | |
6745 | p += 2; | |
6746 | } | |
6747 | else | |
6748 | { | |
6749 | *p++ = DW_CFA_advance_loc4; | |
6750 | bfd_put_32 (htab->elf.dynobj, adv, p); | |
6751 | p += 4; | |
6752 | } | |
6753 | *p++ = DW_CFA_register; | |
6754 | *p++ = 65; | |
6755 | p++; | |
6756 | *p++ = DW_CFA_advance_loc + 4; | |
6757 | *p++ = DW_CFA_restore_extended; | |
6758 | *p++ = 65; | |
6759 | } | |
6760 | BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4) | |
6761 | == htab->glink_eh_frame->size); | |
6762 | } | |
6763 | ||
7619e7c7 AM |
6764 | return TRUE; |
6765 | } | |
0eb4a168 | 6766 | |
93d1b056 AM |
6767 | /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output |
6768 | if it looks like nothing is using them. */ | |
6769 | ||
6770 | static void | |
6771 | maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect) | |
6772 | { | |
6773 | struct elf_link_hash_entry *sda = lsect->sym; | |
6774 | ||
6775 | if (sda != NULL && !sda->ref_regular && sda->dynindx == -1) | |
6776 | { | |
6777 | asection *s; | |
6778 | ||
6779 | s = bfd_get_section_by_name (output_bfd, lsect->name); | |
6780 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6781 | { | |
6782 | s = bfd_get_section_by_name (output_bfd, lsect->bss_name); | |
6783 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6784 | { | |
6785 | sda->def_regular = 0; | |
6786 | /* This is somewhat magic. See elf_link_output_extsym. */ | |
6787 | sda->ref_dynamic = 1; | |
6788 | sda->forced_local = 0; | |
6789 | } | |
6790 | } | |
6791 | } | |
6792 | } | |
6793 | ||
6794 | void | |
6795 | ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info) | |
6796 | { | |
6797 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
6798 | ||
6799 | if (htab != NULL) | |
6800 | { | |
6801 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]); | |
6802 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]); | |
6803 | } | |
6804 | } | |
6805 | ||
6806 | ||
0eb4a168 AM |
6807 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
6808 | ||
6809 | static bfd_boolean | |
6810 | ppc_elf_hash_symbol (struct elf_link_hash_entry *h) | |
6811 | { | |
6812 | if (h->plt.plist != NULL | |
6813 | && !h->def_regular | |
6814 | && (!h->pointer_equality_needed | |
6815 | || !h->ref_regular_nonweak)) | |
6816 | return FALSE; | |
6817 | ||
6818 | return _bfd_elf_hash_symbol (h); | |
6819 | } | |
25dbc73a AM |
6820 | \f |
6821 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
6822 | ||
01017ef8 NS |
6823 | /* Relaxation trampolines. r12 is available for clobbering (r11, is |
6824 | used for some functions that are allowed to break the ABI). */ | |
25dbc73a AM |
6825 | static const int shared_stub_entry[] = |
6826 | { | |
6827 | 0x7c0802a6, /* mflr 0 */ | |
6828 | 0x429f0005, /* bcl 20, 31, .Lxxx */ | |
01017ef8 NS |
6829 | 0x7d8802a6, /* mflr 12 */ |
6830 | 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */ | |
53291d1f | 6831 | 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */ |
25dbc73a | 6832 | 0x7c0803a6, /* mtlr 0 */ |
01017ef8 | 6833 | 0x7d8903a6, /* mtctr 12 */ |
25dbc73a AM |
6834 | 0x4e800420, /* bctr */ |
6835 | }; | |
6836 | ||
6837 | static const int stub_entry[] = | |
6838 | { | |
01017ef8 NS |
6839 | 0x3d800000, /* lis 12,xxx@ha */ |
6840 | 0x398c0000, /* addi 12,12,xxx@l */ | |
6841 | 0x7d8903a6, /* mtctr 12 */ | |
25dbc73a AM |
6842 | 0x4e800420, /* bctr */ |
6843 | }; | |
6844 | ||
5446cbdf AM |
6845 | struct ppc_elf_relax_info |
6846 | { | |
6847 | unsigned int workaround_size; | |
d3e454b9 | 6848 | unsigned int picfixup_size; |
5446cbdf AM |
6849 | }; |
6850 | ||
6851 | /* This function implements long branch trampolines, and the ppc476 | |
6852 | icache bug workaround. Any section needing trampolines or patch | |
6853 | space for the workaround has its size extended so that we can | |
53291d1f | 6854 | add trampolines at the end of the section. */ |
5446cbdf | 6855 | |
25dbc73a AM |
6856 | static bfd_boolean |
6857 | ppc_elf_relax_section (bfd *abfd, | |
6858 | asection *isec, | |
6859 | struct bfd_link_info *link_info, | |
6860 | bfd_boolean *again) | |
6861 | { | |
d3e454b9 | 6862 | struct one_branch_fixup |
25dbc73a | 6863 | { |
d3e454b9 | 6864 | struct one_branch_fixup *next; |
25dbc73a | 6865 | asection *tsec; |
01017ef8 NS |
6866 | /* Final link, can use the symbol offset. For a |
6867 | relocatable link we use the symbol's index. */ | |
25dbc73a AM |
6868 | bfd_vma toff; |
6869 | bfd_vma trampoff; | |
6870 | }; | |
7619e7c7 | 6871 | |
25dbc73a AM |
6872 | Elf_Internal_Shdr *symtab_hdr; |
6873 | bfd_byte *contents = NULL; | |
6874 | Elf_Internal_Sym *isymbuf = NULL; | |
6875 | Elf_Internal_Rela *internal_relocs = NULL; | |
5446cbdf | 6876 | Elf_Internal_Rela *irel, *irelend = NULL; |
d3e454b9 | 6877 | struct one_branch_fixup *branch_fixups = NULL; |
5446cbdf | 6878 | struct ppc_elf_relax_info *relax_info = NULL; |
9bc4e62b | 6879 | unsigned changes = 0; |
5446cbdf | 6880 | bfd_boolean workaround_change; |
d7128ce4 | 6881 | struct ppc_elf_link_hash_table *htab; |
d3e454b9 | 6882 | bfd_size_type trampbase, trampoff, newsize, picfixup_size; |
a6aa5195 | 6883 | asection *got2; |
50248c89 | 6884 | bfd_boolean maybe_pasted; |
7619e7c7 | 6885 | |
25dbc73a | 6886 | *again = FALSE; |
7619e7c7 | 6887 | |
5446cbdf | 6888 | /* No need to do anything with non-alloc or non-code sections. */ |
c87b5a93 | 6889 | if ((isec->flags & SEC_ALLOC) == 0 |
a8ad78a7 | 6890 | || (isec->flags & SEC_CODE) == 0 |
5446cbdf AM |
6891 | || (isec->flags & SEC_LINKER_CREATED) != 0 |
6892 | || isec->size < 4) | |
25dbc73a | 6893 | return TRUE; |
7619e7c7 | 6894 | |
c8a1f254 NS |
6895 | /* We cannot represent the required PIC relocs in the output, so don't |
6896 | do anything. The linker doesn't support mixing -shared and -r | |
6897 | anyway. */ | |
0e1862bb | 6898 | if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info)) |
795bc6b3 | 6899 | return TRUE; |
5b914448 | 6900 | |
5446cbdf AM |
6901 | htab = ppc_elf_hash_table (link_info); |
6902 | if (htab == NULL) | |
6903 | return TRUE; | |
6904 | ||
6905 | isec->size = (isec->size + 3) & -4; | |
6906 | if (isec->rawsize == 0) | |
6907 | isec->rawsize = isec->size; | |
6908 | trampbase = isec->size; | |
6909 | ||
53291d1f AM |
6910 | BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE |
6911 | || isec->sec_info_type == SEC_INFO_TYPE_TARGET); | |
6912 | isec->sec_info_type = SEC_INFO_TYPE_TARGET; | |
6913 | ||
d3e454b9 AM |
6914 | if (htab->params->ppc476_workaround |
6915 | || htab->params->pic_fixup > 0) | |
5446cbdf AM |
6916 | { |
6917 | if (elf_section_data (isec)->sec_info == NULL) | |
6918 | { | |
5446cbdf AM |
6919 | elf_section_data (isec)->sec_info |
6920 | = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info)); | |
6921 | if (elf_section_data (isec)->sec_info == NULL) | |
6922 | return FALSE; | |
6923 | } | |
6924 | relax_info = elf_section_data (isec)->sec_info; | |
6925 | trampbase -= relax_info->workaround_size; | |
6926 | } | |
6927 | ||
50248c89 AM |
6928 | maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0 |
6929 | || strcmp (isec->output_section->name, ".fini") == 0); | |
25dbc73a | 6930 | /* Space for a branch around any trampolines. */ |
5446cbdf AM |
6931 | trampoff = trampbase; |
6932 | if (maybe_pasted && trampbase == isec->rawsize) | |
50248c89 | 6933 | trampoff += 4; |
7619e7c7 | 6934 | |
0ffa91dd | 6935 | symtab_hdr = &elf_symtab_hdr (abfd); |
d3e454b9 AM |
6936 | picfixup_size = 0; |
6937 | if (htab->params->branch_trampolines | |
6938 | || htab->params->pic_fixup > 0) | |
7619e7c7 | 6939 | { |
5446cbdf AM |
6940 | /* Get a copy of the native relocations. */ |
6941 | if (isec->reloc_count != 0) | |
25dbc73a | 6942 | { |
5446cbdf AM |
6943 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, |
6944 | link_info->keep_memory); | |
6945 | if (internal_relocs == NULL) | |
6946 | goto error_return; | |
25dbc73a | 6947 | } |
7619e7c7 | 6948 | |
5446cbdf AM |
6949 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
6950 | ||
6951 | irelend = internal_relocs + isec->reloc_count; | |
6952 | for (irel = internal_relocs; irel < irelend; irel++) | |
25dbc73a | 6953 | { |
5446cbdf AM |
6954 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); |
6955 | bfd_vma toff, roff; | |
6956 | asection *tsec; | |
d3e454b9 | 6957 | struct one_branch_fixup *f; |
5446cbdf | 6958 | size_t insn_offset = 0; |
d3e454b9 | 6959 | bfd_vma max_branch_offset = 0, val; |
5446cbdf AM |
6960 | bfd_byte *hit_addr; |
6961 | unsigned long t0; | |
6962 | struct elf_link_hash_entry *h; | |
6963 | struct plt_entry **plist; | |
6964 | unsigned char sym_type; | |
6965 | ||
6966 | switch (r_type) | |
6967 | { | |
6968 | case R_PPC_REL24: | |
6969 | case R_PPC_LOCAL24PC: | |
6970 | case R_PPC_PLTREL24: | |
6971 | max_branch_offset = 1 << 25; | |
6972 | break; | |
6973 | ||
6974 | case R_PPC_REL14: | |
6975 | case R_PPC_REL14_BRTAKEN: | |
6976 | case R_PPC_REL14_BRNTAKEN: | |
6977 | max_branch_offset = 1 << 15; | |
6978 | break; | |
7fce784e | 6979 | |
d3e454b9 AM |
6980 | case R_PPC_ADDR16_HA: |
6981 | if (htab->params->pic_fixup > 0) | |
6982 | break; | |
6983 | continue; | |
6984 | ||
5446cbdf AM |
6985 | default: |
6986 | continue; | |
6987 | } | |
6988 | ||
6989 | /* Get the value of the symbol referred to by the reloc. */ | |
6990 | h = NULL; | |
6991 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
25dbc73a | 6992 | { |
5446cbdf AM |
6993 | /* A local symbol. */ |
6994 | Elf_Internal_Sym *isym; | |
6995 | ||
6996 | /* Read this BFD's local symbols. */ | |
25dbc73a | 6997 | if (isymbuf == NULL) |
5446cbdf AM |
6998 | { |
6999 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
7000 | if (isymbuf == NULL) | |
7001 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
7002 | symtab_hdr->sh_info, 0, | |
7003 | NULL, NULL, NULL); | |
7004 | if (isymbuf == 0) | |
7005 | goto error_return; | |
7006 | } | |
7007 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7008 | if (isym->st_shndx == SHN_UNDEF) | |
7009 | tsec = bfd_und_section_ptr; | |
7010 | else if (isym->st_shndx == SHN_ABS) | |
7011 | tsec = bfd_abs_section_ptr; | |
7012 | else if (isym->st_shndx == SHN_COMMON) | |
7013 | tsec = bfd_com_section_ptr; | |
7014 | else | |
7015 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7016 | ||
7017 | toff = isym->st_value; | |
7018 | sym_type = ELF_ST_TYPE (isym->st_info); | |
25dbc73a | 7019 | } |
25dbc73a | 7020 | else |
5446cbdf AM |
7021 | { |
7022 | /* Global symbol handling. */ | |
7023 | unsigned long indx; | |
7fce784e | 7024 | |
5446cbdf AM |
7025 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
7026 | h = elf_sym_hashes (abfd)[indx]; | |
7619e7c7 | 7027 | |
5446cbdf AM |
7028 | while (h->root.type == bfd_link_hash_indirect |
7029 | || h->root.type == bfd_link_hash_warning) | |
7030 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 7031 | |
5446cbdf AM |
7032 | if (h->root.type == bfd_link_hash_defined |
7033 | || h->root.type == bfd_link_hash_defweak) | |
7034 | { | |
7035 | tsec = h->root.u.def.section; | |
7036 | toff = h->root.u.def.value; | |
7037 | } | |
7038 | else if (h->root.type == bfd_link_hash_undefined | |
7039 | || h->root.type == bfd_link_hash_undefweak) | |
7040 | { | |
7041 | tsec = bfd_und_section_ptr; | |
0e1862bb | 7042 | toff = bfd_link_relocatable (link_info) ? indx : 0; |
5446cbdf AM |
7043 | } |
7044 | else | |
7045 | continue; | |
7046 | ||
9f7552cf AM |
7047 | /* If this branch is to __tls_get_addr then we may later |
7048 | optimise away the call. We won't be needing a long- | |
7049 | branch stub in that case. */ | |
0e1862bb | 7050 | if (bfd_link_executable (link_info) |
9f7552cf AM |
7051 | && h == htab->tls_get_addr |
7052 | && irel != internal_relocs) | |
7053 | { | |
7054 | unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info); | |
7055 | unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info); | |
7056 | unsigned int tls_mask = 0; | |
7057 | ||
7058 | /* The previous reloc should be one of R_PPC_TLSGD or | |
7059 | R_PPC_TLSLD, or for older object files, a reloc | |
7060 | on the __tls_get_addr arg setup insn. Get tls | |
7061 | mask bits from the symbol on that reloc. */ | |
7062 | if (t_symndx < symtab_hdr->sh_info) | |
7063 | { | |
7064 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); | |
7065 | ||
7066 | if (local_got_offsets != NULL) | |
7067 | { | |
7068 | struct plt_entry **local_plt = (struct plt_entry **) | |
7069 | (local_got_offsets + symtab_hdr->sh_info); | |
7070 | char *lgot_masks = (char *) | |
7071 | (local_plt + symtab_hdr->sh_info); | |
7072 | tls_mask = lgot_masks[t_symndx]; | |
7073 | } | |
7074 | } | |
7075 | else | |
7076 | { | |
7077 | struct elf_link_hash_entry *th | |
7078 | = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info]; | |
7079 | ||
7080 | while (th->root.type == bfd_link_hash_indirect | |
7081 | || th->root.type == bfd_link_hash_warning) | |
7082 | th = (struct elf_link_hash_entry *) th->root.u.i.link; | |
7083 | ||
7084 | tls_mask | |
7085 | = ((struct ppc_elf_link_hash_entry *) th)->tls_mask; | |
7086 | } | |
7087 | ||
7088 | /* The mask bits tell us if the call will be | |
7089 | optimised away. */ | |
7090 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0 | |
7091 | && (t_rtype == R_PPC_TLSGD | |
7092 | || t_rtype == R_PPC_GOT_TLSGD16 | |
7093 | || t_rtype == R_PPC_GOT_TLSGD16_LO)) | |
7094 | continue; | |
7095 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0 | |
7096 | && (t_rtype == R_PPC_TLSLD | |
7097 | || t_rtype == R_PPC_GOT_TLSLD16 | |
7098 | || t_rtype == R_PPC_GOT_TLSLD16_LO)) | |
7099 | continue; | |
7100 | } | |
7101 | ||
5446cbdf AM |
7102 | sym_type = h->type; |
7103 | } | |
7619e7c7 | 7104 | |
d3e454b9 AM |
7105 | if (r_type == R_PPC_ADDR16_HA) |
7106 | { | |
7107 | if (h != NULL | |
7108 | && !h->def_regular | |
7109 | && h->protected_def | |
7110 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
7111 | && ppc_elf_hash_entry (h)->has_addr16_lo) | |
7112 | picfixup_size += 12; | |
7113 | continue; | |
7114 | } | |
7115 | ||
5446cbdf AM |
7116 | /* The condition here under which we call find_plt_ent must |
7117 | match that in relocate_section. If we call find_plt_ent here | |
7118 | but not in relocate_section, or vice versa, then the branch | |
7119 | destination used here may be incorrect. */ | |
7120 | plist = NULL; | |
7121 | if (h != NULL) | |
25dbc73a | 7122 | { |
5446cbdf AM |
7123 | /* We know is_branch_reloc (r_type) is true. */ |
7124 | if (h->type == STT_GNU_IFUNC | |
7125 | || r_type == R_PPC_PLTREL24) | |
7126 | plist = &h->plt.plist; | |
25dbc73a | 7127 | } |
5446cbdf AM |
7128 | else if (sym_type == STT_GNU_IFUNC |
7129 | && elf_local_got_offsets (abfd) != NULL) | |
c8a1f254 | 7130 | { |
5446cbdf AM |
7131 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); |
7132 | struct plt_entry **local_plt = (struct plt_entry **) | |
7133 | (local_got_offsets + symtab_hdr->sh_info); | |
7134 | plist = local_plt + ELF32_R_SYM (irel->r_info); | |
c8a1f254 | 7135 | } |
5446cbdf | 7136 | if (plist != NULL) |
a9585d22 | 7137 | { |
5446cbdf AM |
7138 | bfd_vma addend = 0; |
7139 | struct plt_entry *ent; | |
7140 | ||
0e1862bb | 7141 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info)) |
5446cbdf AM |
7142 | addend = irel->r_addend; |
7143 | ent = find_plt_ent (plist, got2, addend); | |
7144 | if (ent != NULL) | |
a9585d22 | 7145 | { |
5446cbdf AM |
7146 | if (htab->plt_type == PLT_NEW |
7147 | || h == NULL | |
7148 | || !htab->elf.dynamic_sections_created | |
7149 | || h->dynindx == -1) | |
7150 | { | |
7151 | tsec = htab->glink; | |
7152 | toff = ent->glink_offset; | |
7153 | } | |
7154 | else | |
7155 | { | |
7156 | tsec = htab->plt; | |
7157 | toff = ent->plt.offset; | |
7158 | } | |
de972ffa AM |
7159 | } |
7160 | } | |
de972ffa | 7161 | |
5446cbdf AM |
7162 | /* If the branch and target are in the same section, you have |
7163 | no hope of adding stubs. We'll error out later should the | |
7164 | branch overflow. */ | |
7165 | if (tsec == isec) | |
7166 | continue; | |
25dbc73a | 7167 | |
5446cbdf AM |
7168 | /* There probably isn't any reason to handle symbols in |
7169 | SEC_MERGE sections; SEC_MERGE doesn't seem a likely | |
7170 | attribute for a code section, and we are only looking at | |
7171 | branches. However, implement it correctly here as a | |
7172 | reference for other target relax_section functions. */ | |
7173 | if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
7174 | { | |
7175 | /* At this stage in linking, no SEC_MERGE symbol has been | |
7176 | adjusted, so all references to such symbols need to be | |
7177 | passed through _bfd_merged_section_offset. (Later, in | |
7178 | relocate_section, all SEC_MERGE symbols *except* for | |
7179 | section symbols have been adjusted.) | |
7180 | ||
7181 | gas may reduce relocations against symbols in SEC_MERGE | |
7182 | sections to a relocation against the section symbol when | |
7183 | the original addend was zero. When the reloc is against | |
7184 | a section symbol we should include the addend in the | |
7185 | offset passed to _bfd_merged_section_offset, since the | |
7186 | location of interest is the original symbol. On the | |
7187 | other hand, an access to "sym+addend" where "sym" is not | |
7188 | a section symbol should not include the addend; Such an | |
7189 | access is presumed to be an offset from "sym"; The | |
7190 | location of interest is just "sym". */ | |
7191 | if (sym_type == STT_SECTION) | |
7192 | toff += irel->r_addend; | |
7193 | ||
7194 | toff | |
7195 | = _bfd_merged_section_offset (abfd, &tsec, | |
7196 | elf_section_data (tsec)->sec_info, | |
7197 | toff); | |
7198 | ||
7199 | if (sym_type != STT_SECTION) | |
7200 | toff += irel->r_addend; | |
7201 | } | |
7202 | /* PLTREL24 addends are special. */ | |
7203 | else if (r_type != R_PPC_PLTREL24) | |
25dbc73a | 7204 | toff += irel->r_addend; |
7619e7c7 | 7205 | |
5446cbdf | 7206 | /* Attempted -shared link of non-pic code loses. */ |
0e1862bb | 7207 | if ((!bfd_link_relocatable (link_info) |
5446cbdf AM |
7208 | && tsec == bfd_und_section_ptr) |
7209 | || tsec->output_section == NULL | |
7210 | || (tsec->owner != NULL | |
7211 | && (tsec->owner->flags & BFD_PLUGIN) != 0)) | |
7212 | continue; | |
7619e7c7 | 7213 | |
5446cbdf | 7214 | roff = irel->r_offset; |
7de713b9 | 7215 | |
5446cbdf AM |
7216 | /* If the branch is in range, no need to do anything. */ |
7217 | if (tsec != bfd_und_section_ptr | |
0e1862bb | 7218 | && (!bfd_link_relocatable (link_info) |
5446cbdf AM |
7219 | /* A relocatable link may have sections moved during |
7220 | final link, so do not presume they remain in range. */ | |
7221 | || tsec->output_section == isec->output_section)) | |
7222 | { | |
7223 | bfd_vma symaddr, reladdr; | |
7619e7c7 | 7224 | |
5446cbdf AM |
7225 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; |
7226 | reladdr = isec->output_section->vma + isec->output_offset + roff; | |
7227 | if (symaddr - reladdr + max_branch_offset | |
7228 | < 2 * max_branch_offset) | |
7229 | continue; | |
7230 | } | |
01017ef8 | 7231 | |
5446cbdf | 7232 | /* Look for an existing fixup to this address. */ |
d3e454b9 | 7233 | for (f = branch_fixups; f ; f = f->next) |
5446cbdf AM |
7234 | if (f->tsec == tsec && f->toff == toff) |
7235 | break; | |
252b5132 | 7236 | |
5446cbdf AM |
7237 | if (f == NULL) |
7238 | { | |
7239 | size_t size; | |
7240 | unsigned long stub_rtype; | |
25dbc73a | 7241 | |
5446cbdf AM |
7242 | val = trampoff - roff; |
7243 | if (val >= max_branch_offset) | |
7244 | /* Oh dear, we can't reach a trampoline. Don't try to add | |
7245 | one. We'll report an error later. */ | |
7246 | continue; | |
252b5132 | 7247 | |
0e1862bb | 7248 | if (bfd_link_pic (link_info)) |
5446cbdf AM |
7249 | { |
7250 | size = 4 * ARRAY_SIZE (shared_stub_entry); | |
7251 | insn_offset = 12; | |
7252 | } | |
7253 | else | |
7254 | { | |
7255 | size = 4 * ARRAY_SIZE (stub_entry); | |
7256 | insn_offset = 0; | |
7257 | } | |
7258 | stub_rtype = R_PPC_RELAX; | |
7259 | if (tsec == htab->plt | |
7260 | || tsec == htab->glink) | |
7261 | { | |
7262 | stub_rtype = R_PPC_RELAX_PLT; | |
7263 | if (r_type == R_PPC_PLTREL24) | |
7264 | stub_rtype = R_PPC_RELAX_PLTREL24; | |
7265 | } | |
252b5132 | 7266 | |
5446cbdf AM |
7267 | /* Hijack the old relocation. Since we need two |
7268 | relocations for this use a "composite" reloc. */ | |
7269 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
7270 | stub_rtype); | |
7271 | irel->r_offset = trampoff + insn_offset; | |
7272 | if (r_type == R_PPC_PLTREL24 | |
7273 | && stub_rtype != R_PPC_RELAX_PLTREL24) | |
7274 | irel->r_addend = 0; | |
7275 | ||
7276 | /* Record the fixup so we don't do it again this section. */ | |
7277 | f = bfd_malloc (sizeof (*f)); | |
d3e454b9 | 7278 | f->next = branch_fixups; |
5446cbdf AM |
7279 | f->tsec = tsec; |
7280 | f->toff = toff; | |
7281 | f->trampoff = trampoff; | |
d3e454b9 | 7282 | branch_fixups = f; |
5446cbdf AM |
7283 | |
7284 | trampoff += size; | |
7285 | changes++; | |
25dbc73a AM |
7286 | } |
7287 | else | |
7288 | { | |
5446cbdf AM |
7289 | val = f->trampoff - roff; |
7290 | if (val >= max_branch_offset) | |
7291 | continue; | |
252b5132 | 7292 | |
5446cbdf AM |
7293 | /* Nop out the reloc, since we're finalizing things here. */ |
7294 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7295 | } | |
252b5132 | 7296 | |
5446cbdf AM |
7297 | /* Get the section contents. */ |
7298 | if (contents == NULL) | |
25dbc73a | 7299 | { |
5446cbdf AM |
7300 | /* Get cached copy if it exists. */ |
7301 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
7302 | contents = elf_section_data (isec)->this_hdr.contents; | |
25dbc73a | 7303 | /* Go get them off disk. */ |
5446cbdf | 7304 | else if (!bfd_malloc_and_get_section (abfd, isec, &contents)) |
25dbc73a AM |
7305 | goto error_return; |
7306 | } | |
252b5132 | 7307 | |
5446cbdf AM |
7308 | /* Fix up the existing branch to hit the trampoline. */ |
7309 | hit_addr = contents + roff; | |
7310 | switch (r_type) | |
7311 | { | |
7312 | case R_PPC_REL24: | |
7313 | case R_PPC_LOCAL24PC: | |
7314 | case R_PPC_PLTREL24: | |
7315 | t0 = bfd_get_32 (abfd, hit_addr); | |
7316 | t0 &= ~0x3fffffc; | |
7317 | t0 |= val & 0x3fffffc; | |
7318 | bfd_put_32 (abfd, t0, hit_addr); | |
7319 | break; | |
252b5132 | 7320 | |
5446cbdf AM |
7321 | case R_PPC_REL14: |
7322 | case R_PPC_REL14_BRTAKEN: | |
7323 | case R_PPC_REL14_BRNTAKEN: | |
7324 | t0 = bfd_get_32 (abfd, hit_addr); | |
7325 | t0 &= ~0xfffc; | |
7326 | t0 |= val & 0xfffc; | |
7327 | bfd_put_32 (abfd, t0, hit_addr); | |
7328 | break; | |
7329 | } | |
25dbc73a | 7330 | } |
252b5132 | 7331 | |
d3e454b9 | 7332 | while (branch_fixups != NULL) |
25dbc73a | 7333 | { |
d3e454b9 AM |
7334 | struct one_branch_fixup *f = branch_fixups; |
7335 | branch_fixups = branch_fixups->next; | |
25dbc73a AM |
7336 | free (f); |
7337 | } | |
5446cbdf | 7338 | } |
252b5132 | 7339 | |
5446cbdf AM |
7340 | workaround_change = FALSE; |
7341 | newsize = trampoff; | |
795bc6b3 | 7342 | if (htab->params->ppc476_workaround |
0e1862bb | 7343 | && (!bfd_link_relocatable (link_info) |
795bc6b3 | 7344 | || isec->output_section->alignment_power >= htab->params->pagesize_p2)) |
5446cbdf AM |
7345 | { |
7346 | bfd_vma addr, end_addr; | |
7347 | unsigned int crossings; | |
795bc6b3 | 7348 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf AM |
7349 | |
7350 | addr = isec->output_section->vma + isec->output_offset; | |
6128f9cf | 7351 | end_addr = addr + trampoff; |
5446cbdf | 7352 | addr &= -pagesize; |
795bc6b3 | 7353 | crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2; |
5446cbdf AM |
7354 | if (crossings != 0) |
7355 | { | |
7356 | /* Keep space aligned, to ensure the patch code itself does | |
7357 | not cross a page. Don't decrease size calculated on a | |
7358 | previous pass as otherwise we might never settle on a layout. */ | |
1e269e9b | 7359 | newsize = 15 - ((end_addr - 1) & 15); |
5446cbdf AM |
7360 | newsize += crossings * 16; |
7361 | if (relax_info->workaround_size < newsize) | |
7362 | { | |
7363 | relax_info->workaround_size = newsize; | |
7364 | workaround_change = TRUE; | |
5446cbdf AM |
7365 | } |
7366 | /* Ensure relocate_section is called. */ | |
7367 | isec->flags |= SEC_RELOC; | |
7368 | } | |
7369 | newsize = trampoff + relax_info->workaround_size; | |
7370 | } | |
7371 | ||
d3e454b9 AM |
7372 | if (htab->params->pic_fixup > 0) |
7373 | { | |
7374 | picfixup_size -= relax_info->picfixup_size; | |
7375 | if (picfixup_size != 0) | |
7376 | relax_info->picfixup_size += picfixup_size; | |
7377 | newsize += relax_info->picfixup_size; | |
7378 | } | |
7379 | ||
7380 | if (changes != 0 || picfixup_size != 0 || workaround_change) | |
5446cbdf AM |
7381 | isec->size = newsize; |
7382 | ||
25dbc73a AM |
7383 | if (isymbuf != NULL |
7384 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 7385 | { |
25dbc73a AM |
7386 | if (! link_info->keep_memory) |
7387 | free (isymbuf); | |
252b5132 | 7388 | else |
25dbc73a AM |
7389 | { |
7390 | /* Cache the symbols for elf_link_input_bfd. */ | |
7391 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
7392 | } | |
252b5132 RH |
7393 | } |
7394 | ||
25dbc73a AM |
7395 | if (contents != NULL |
7396 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7397 | { | |
53291d1f | 7398 | if (!changes && !link_info->keep_memory) |
25dbc73a AM |
7399 | free (contents); |
7400 | else | |
7401 | { | |
7402 | /* Cache the section contents for elf_link_input_bfd. */ | |
7403 | elf_section_data (isec)->this_hdr.contents = contents; | |
7404 | } | |
7405 | } | |
252b5132 | 7406 | |
d3e454b9 | 7407 | changes += picfixup_size; |
9bc4e62b | 7408 | if (changes != 0) |
25dbc73a | 7409 | { |
9bc4e62b NS |
7410 | /* Append sufficient NOP relocs so we can write out relocation |
7411 | information for the trampolines. */ | |
d4730f92 | 7412 | Elf_Internal_Shdr *rel_hdr; |
9bc4e62b NS |
7413 | Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) |
7414 | * sizeof (*new_relocs)); | |
7415 | unsigned ix; | |
5b914448 | 7416 | |
9bc4e62b NS |
7417 | if (!new_relocs) |
7418 | goto error_return; | |
7419 | memcpy (new_relocs, internal_relocs, | |
7420 | isec->reloc_count * sizeof (*new_relocs)); | |
7421 | for (ix = changes; ix--;) | |
7422 | { | |
7423 | irel = new_relocs + ix + isec->reloc_count; | |
7424 | ||
7425 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7426 | } | |
7427 | if (internal_relocs != elf_section_data (isec)->relocs) | |
25dbc73a | 7428 | free (internal_relocs); |
9bc4e62b NS |
7429 | elf_section_data (isec)->relocs = new_relocs; |
7430 | isec->reloc_count += changes; | |
d4730f92 BS |
7431 | rel_hdr = _bfd_elf_single_rel_hdr (isec); |
7432 | rel_hdr->sh_size += changes * rel_hdr->sh_entsize; | |
25dbc73a | 7433 | } |
5446cbdf AM |
7434 | else if (internal_relocs != NULL |
7435 | && elf_section_data (isec)->relocs != internal_relocs) | |
9bc4e62b | 7436 | free (internal_relocs); |
252b5132 | 7437 | |
5446cbdf | 7438 | *again = changes != 0 || workaround_change; |
b34976b6 | 7439 | return TRUE; |
25dbc73a AM |
7440 | |
7441 | error_return: | |
d3e454b9 | 7442 | while (branch_fixups != NULL) |
5446cbdf | 7443 | { |
d3e454b9 AM |
7444 | struct one_branch_fixup *f = branch_fixups; |
7445 | branch_fixups = branch_fixups->next; | |
5446cbdf AM |
7446 | free (f); |
7447 | } | |
25dbc73a AM |
7448 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) |
7449 | free (isymbuf); | |
7450 | if (contents != NULL | |
7451 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7452 | free (contents); | |
7453 | if (internal_relocs != NULL | |
7454 | && elf_section_data (isec)->relocs != internal_relocs) | |
7455 | free (internal_relocs); | |
7456 | return FALSE; | |
252b5132 | 7457 | } |
252b5132 | 7458 | \f |
8a696751 AM |
7459 | /* What to do when ld finds relocations against symbols defined in |
7460 | discarded sections. */ | |
7461 | ||
7462 | static unsigned int | |
7463 | ppc_elf_action_discarded (asection *sec) | |
7464 | { | |
7465 | if (strcmp (".fixup", sec->name) == 0) | |
7466 | return 0; | |
7467 | ||
7468 | if (strcmp (".got2", sec->name) == 0) | |
7469 | return 0; | |
7470 | ||
7471 | return _bfd_elf_default_action_discarded (sec); | |
7472 | } | |
c9a2f333 | 7473 | \f |
25dbc73a | 7474 | /* Fill in the address for a pointer generated in a linker section. */ |
252b5132 | 7475 | |
25dbc73a | 7476 | static bfd_vma |
76750a2f | 7477 | elf_finish_pointer_linker_section (bfd *input_bfd, |
25dbc73a AM |
7478 | elf_linker_section_t *lsect, |
7479 | struct elf_link_hash_entry *h, | |
7480 | bfd_vma relocation, | |
2bb04cf2 | 7481 | const Elf_Internal_Rela *rel) |
25dbc73a AM |
7482 | { |
7483 | elf_linker_section_pointers_t *linker_section_ptr; | |
252b5132 | 7484 | |
25dbc73a | 7485 | BFD_ASSERT (lsect != NULL); |
252b5132 | 7486 | |
25dbc73a | 7487 | if (h != NULL) |
252b5132 | 7488 | { |
25dbc73a AM |
7489 | /* Handle global symbol. */ |
7490 | struct ppc_elf_link_hash_entry *eh; | |
252b5132 | 7491 | |
25dbc73a | 7492 | eh = (struct ppc_elf_link_hash_entry *) h; |
76750a2f AM |
7493 | BFD_ASSERT (eh->elf.def_regular); |
7494 | linker_section_ptr = eh->linker_section_pointer; | |
25dbc73a AM |
7495 | } |
7496 | else | |
7497 | { | |
7498 | /* Handle local symbol. */ | |
7499 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
76750a2f | 7500 | |
0c8d6e5c | 7501 | BFD_ASSERT (is_ppc_elf (input_bfd)); |
25dbc73a | 7502 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); |
76750a2f AM |
7503 | linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; |
7504 | } | |
252b5132 | 7505 | |
76750a2f AM |
7506 | linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, |
7507 | rel->r_addend, | |
7508 | lsect); | |
7509 | BFD_ASSERT (linker_section_ptr != NULL); | |
25dbc73a | 7510 | |
76750a2f AM |
7511 | /* Offset will always be a multiple of four, so use the bottom bit |
7512 | as a "written" flag. */ | |
7513 | if ((linker_section_ptr->offset & 1) == 0) | |
7514 | { | |
7515 | bfd_put_32 (lsect->section->owner, | |
7516 | relocation + linker_section_ptr->addend, | |
7517 | lsect->section->contents + linker_section_ptr->offset); | |
7518 | linker_section_ptr->offset += 1; | |
252b5132 RH |
7519 | } |
7520 | ||
bd6c6e2b AM |
7521 | relocation = (lsect->section->output_section->vma |
7522 | + lsect->section->output_offset | |
76750a2f | 7523 | + linker_section_ptr->offset - 1 |
bd6c6e2b | 7524 | - SYM_VAL (lsect->sym)); |
252b5132 | 7525 | |
25dbc73a AM |
7526 | #ifdef DEBUG |
7527 | fprintf (stderr, | |
7528 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
7529 | lsect->name, (long) relocation, (long) relocation); | |
7530 | #endif | |
252b5132 | 7531 | |
bd6c6e2b | 7532 | return relocation; |
252b5132 | 7533 | } |
25dbc73a | 7534 | |
e054468f AM |
7535 | #define PPC_LO(v) ((v) & 0xffff) |
7536 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7537 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7538 | ||
7539 | static void | |
a7f2871e | 7540 | write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p, |
e054468f AM |
7541 | struct bfd_link_info *info) |
7542 | { | |
7543 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
7544 | bfd *output_bfd = info->output_bfd; | |
7545 | bfd_vma plt; | |
e054468f AM |
7546 | |
7547 | plt = ((ent->plt.offset & ~1) | |
7548 | + plt_sec->output_section->vma | |
7549 | + plt_sec->output_offset); | |
e054468f | 7550 | |
0e1862bb | 7551 | if (bfd_link_pic (info)) |
e054468f AM |
7552 | { |
7553 | bfd_vma got = 0; | |
7554 | ||
7555 | if (ent->addend >= 32768) | |
7556 | got = (ent->addend | |
7557 | + ent->sec->output_section->vma | |
7558 | + ent->sec->output_offset); | |
7559 | else if (htab->elf.hgot != NULL) | |
7560 | got = SYM_VAL (htab->elf.hgot); | |
7561 | ||
7562 | plt -= got; | |
7563 | ||
7564 | if (plt + 0x8000 < 0x10000) | |
7565 | { | |
7566 | bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); | |
7567 | p += 4; | |
7568 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7569 | p += 4; | |
7570 | bfd_put_32 (output_bfd, BCTR, p); | |
7571 | p += 4; | |
da3a2088 | 7572 | bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p); |
e054468f AM |
7573 | p += 4; |
7574 | } | |
7575 | else | |
7576 | { | |
7577 | bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); | |
7578 | p += 4; | |
7579 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7580 | p += 4; | |
7581 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7582 | p += 4; | |
7583 | bfd_put_32 (output_bfd, BCTR, p); | |
7584 | p += 4; | |
7585 | } | |
7586 | } | |
7587 | else | |
7588 | { | |
7589 | bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); | |
7590 | p += 4; | |
7591 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7592 | p += 4; | |
7593 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7594 | p += 4; | |
7595 | bfd_put_32 (output_bfd, BCTR, p); | |
7596 | p += 4; | |
7597 | } | |
7598 | } | |
7599 | ||
bd6c6e2b AM |
7600 | /* Return true if symbol is defined statically. */ |
7601 | ||
7602 | static bfd_boolean | |
7603 | is_static_defined (struct elf_link_hash_entry *h) | |
7604 | { | |
7605 | return ((h->root.type == bfd_link_hash_defined | |
7606 | || h->root.type == bfd_link_hash_defweak) | |
7607 | && h->root.u.def.section != NULL | |
7608 | && h->root.u.def.section->output_section != NULL); | |
7609 | } | |
7610 | ||
2d0f3896 AM |
7611 | /* If INSN is an opcode that may be used with an @tls operand, return |
7612 | the transformed insn for TLS optimisation, otherwise return 0. If | |
7613 | REG is non-zero only match an insn with RB or RA equal to REG. */ | |
7614 | ||
7615 | unsigned int | |
7616 | _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg) | |
7617 | { | |
7618 | unsigned int rtra; | |
7619 | ||
7620 | if ((insn & (0x3f << 26)) != 31 << 26) | |
7621 | return 0; | |
7622 | ||
7623 | if (reg == 0 || ((insn >> 11) & 0x1f) == reg) | |
7624 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7625 | else if (((insn >> 16) & 0x1f) == reg) | |
7626 | rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5); | |
7627 | else | |
7628 | return 0; | |
7629 | ||
7630 | if ((insn & (0x3ff << 1)) == 266 << 1) | |
7631 | /* add -> addi. */ | |
7632 | insn = 14 << 26; | |
7633 | else if ((insn & (0x1f << 1)) == 23 << 1 | |
7634 | && ((insn & (0x1f << 6)) < 14 << 6 | |
7635 | || ((insn & (0x1f << 6)) >= 16 << 6 | |
7636 | && (insn & (0x1f << 6)) < 24 << 6))) | |
7637 | /* load and store indexed -> dform. */ | |
7638 | insn = (32 | ((insn >> 6) & 0x1f)) << 26; | |
7639 | else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1) | |
7640 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7641 | insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1); | |
7642 | else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1) | |
7643 | /* lwax -> lwa. */ | |
7644 | insn = (58 << 26) | 2; | |
7645 | else | |
7646 | return 0; | |
7647 | insn |= rtra; | |
7648 | return insn; | |
7649 | } | |
7650 | ||
766bc656 AM |
7651 | /* If INSN is an opcode that may be used with an @tprel operand, return |
7652 | the transformed insn for an undefined weak symbol, ie. with the | |
7653 | thread pointer REG operand removed. Otherwise return 0. */ | |
7654 | ||
7655 | unsigned int | |
7656 | _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg) | |
7657 | { | |
7658 | if ((insn & (0x1f << 16)) == reg << 16 | |
7659 | && ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
7660 | || (insn & (0x3f << 26)) == 15u << 26 /* addis */ | |
7661 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
7662 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
7663 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
7664 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
7665 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
7666 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
7667 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
7668 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
7669 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
7670 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
7671 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
7672 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
7673 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
7674 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
7675 | && (insn & 3) != 1) | |
7676 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
7677 | && ((insn & 3) == 0 || (insn & 3) == 3)))) | |
7678 | { | |
7679 | insn &= ~(0x1f << 16); | |
7680 | } | |
7681 | else if ((insn & (0x1f << 21)) == reg << 21 | |
7682 | && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */ | |
7683 | || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */ | |
7684 | || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */)) | |
7685 | { | |
7686 | insn &= ~(0x1f << 21); | |
7687 | insn |= (insn & (0x1f << 16)) << 5; | |
7688 | if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */) | |
7689 | insn -= 2 >> 26; /* convert to ori,oris */ | |
7690 | } | |
7691 | else | |
7692 | insn = 0; | |
7693 | return insn; | |
7694 | } | |
7695 | ||
1fe532cf AM |
7696 | static bfd_boolean |
7697 | is_insn_ds_form (unsigned int insn) | |
7698 | { | |
7699 | return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */ | |
7700 | || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */ | |
7701 | || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */ | |
7702 | || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */); | |
7703 | } | |
7704 | ||
7705 | static bfd_boolean | |
7706 | is_insn_dq_form (unsigned int insn) | |
7707 | { | |
a680de9a PB |
7708 | return ((insn & (0x3f << 26)) == 56u << 26 /* lq */ |
7709 | || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */ | |
7710 | && (insn & 3) == 1)); | |
1fe532cf AM |
7711 | } |
7712 | ||
252b5132 RH |
7713 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7714 | to handle the relocations for a section. | |
7715 | ||
7716 | The relocs are always passed as Rela structures; if the section | |
7717 | actually uses Rel structures, the r_addend field will always be | |
7718 | zero. | |
7719 | ||
7720 | This function is responsible for adjust the section contents as | |
7721 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7722 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
7723 | necessary. |
7724 | ||
7725 | This function does not have to worry about setting the reloc | |
7726 | address or the reloc symbol index. | |
7727 | ||
7728 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7729 | ||
7730 | LOCAL_SECTIONS is an array giving the section in the input file | |
7731 | corresponding to the st_shndx field of each local symbol. | |
7732 | ||
7733 | The global hash table entry for the global symbols can be found | |
7734 | via elf_sym_hashes (input_bfd). | |
7735 | ||
1049f94e | 7736 | When generating relocatable output, this function must handle |
252b5132 RH |
7737 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7738 | going to be the section symbol corresponding to the output | |
7739 | section, which means that the addend must be adjusted | |
7740 | accordingly. */ | |
7741 | ||
b34976b6 | 7742 | static bfd_boolean |
55fd94b0 AM |
7743 | ppc_elf_relocate_section (bfd *output_bfd, |
7744 | struct bfd_link_info *info, | |
7745 | bfd *input_bfd, | |
7746 | asection *input_section, | |
7747 | bfd_byte *contents, | |
7748 | Elf_Internal_Rela *relocs, | |
7749 | Elf_Internal_Sym *local_syms, | |
7750 | asection **local_sections) | |
252b5132 | 7751 | { |
7619e7c7 AM |
7752 | Elf_Internal_Shdr *symtab_hdr; |
7753 | struct elf_link_hash_entry **sym_hashes; | |
7754 | struct ppc_elf_link_hash_table *htab; | |
7755 | Elf_Internal_Rela *rel; | |
c316a17c | 7756 | Elf_Internal_Rela *wrel; |
7619e7c7 AM |
7757 | Elf_Internal_Rela *relend; |
7758 | Elf_Internal_Rela outrel; | |
f95f8542 | 7759 | asection *got2; |
252b5132 | 7760 | bfd_vma *local_got_offsets; |
b34976b6 | 7761 | bfd_boolean ret = TRUE; |
4fe5ca5b | 7762 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
3348747a | 7763 | bfd_boolean is_vxworks_tls; |
d3e454b9 AM |
7764 | unsigned int picfixup_size = 0; |
7765 | struct ppc_elf_relax_info *relax_info = NULL; | |
b34976b6 | 7766 | |
252b5132 | 7767 | #ifdef DEBUG |
d003868e AM |
7768 | _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " |
7769 | "%ld relocations%s", | |
7770 | input_bfd, input_section, | |
7771 | (long) input_section->reloc_count, | |
0e1862bb | 7772 | (bfd_link_relocatable (info)) ? " (relocatable)" : ""); |
252b5132 RH |
7773 | #endif |
7774 | ||
a6aa5195 AM |
7775 | got2 = bfd_get_section_by_name (input_bfd, ".got2"); |
7776 | ||
e47cd125 | 7777 | /* Initialize howto table if not already done. */ |
8da6118f | 7778 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
7779 | ppc_elf_howto_init (); |
7780 | ||
7619e7c7 | 7781 | htab = ppc_elf_hash_table (info); |
252b5132 | 7782 | local_got_offsets = elf_local_got_offsets (input_bfd); |
0ffa91dd | 7783 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
7619e7c7 | 7784 | sym_hashes = elf_sym_hashes (input_bfd); |
3348747a NS |
7785 | /* We have to handle relocations in vxworks .tls_vars sections |
7786 | specially, because the dynamic loader is 'weird'. */ | |
0e1862bb | 7787 | is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info) |
3348747a NS |
7788 | && !strcmp (input_section->output_section->name, |
7789 | ".tls_vars")); | |
d3e454b9 AM |
7790 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET) |
7791 | relax_info = elf_section_data (input_section)->sec_info; | |
c316a17c | 7792 | rel = wrel = relocs; |
7619e7c7 | 7793 | relend = relocs + input_section->reloc_count; |
c316a17c | 7794 | for (; rel < relend; wrel++, rel++) |
252b5132 | 7795 | { |
7619e7c7 AM |
7796 | enum elf_ppc_reloc_type r_type; |
7797 | bfd_vma addend; | |
7798 | bfd_reloc_status_type r; | |
7799 | Elf_Internal_Sym *sym; | |
7800 | asection *sec; | |
7801 | struct elf_link_hash_entry *h; | |
7802 | const char *sym_name; | |
252b5132 RH |
7803 | reloc_howto_type *howto; |
7804 | unsigned long r_symndx; | |
7805 | bfd_vma relocation; | |
91d6fa6a | 7806 | bfd_vma branch_bit, from; |
7619e7c7 AM |
7807 | bfd_boolean unresolved_reloc; |
7808 | bfd_boolean warned; | |
7809 | unsigned int tls_type, tls_mask, tls_gd; | |
e054468f | 7810 | struct plt_entry **ifunc; |
86c95733 | 7811 | struct reloc_howto_struct alt_howto; |
7619e7c7 | 7812 | |
c316a17c | 7813 | again: |
55fd94b0 AM |
7814 | r_type = ELF32_R_TYPE (rel->r_info); |
7815 | sym = NULL; | |
7816 | sec = NULL; | |
7817 | h = NULL; | |
7619e7c7 AM |
7818 | unresolved_reloc = FALSE; |
7819 | warned = FALSE; | |
252b5132 | 7820 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 7821 | |
252b5132 RH |
7822 | if (r_symndx < symtab_hdr->sh_info) |
7823 | { | |
7824 | sym = local_syms + r_symndx; | |
7825 | sec = local_sections[r_symndx]; | |
26c61ae5 | 7826 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
252b5132 | 7827 | |
8517fae7 | 7828 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
7829 | } |
7830 | else | |
7831 | { | |
62d887d4 L |
7832 | bfd_boolean ignored; |
7833 | ||
b2a8e766 AM |
7834 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
7835 | r_symndx, symtab_hdr, sym_hashes, | |
7836 | h, sec, relocation, | |
62d887d4 | 7837 | unresolved_reloc, warned, ignored); |
9abc968f | 7838 | |
252b5132 | 7839 | sym_name = h->root.root.string; |
7619e7c7 AM |
7840 | } |
7841 | ||
dbaa2011 | 7842 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
7843 | { |
7844 | /* For relocs against symbols from removed linkonce sections, | |
7845 | or sections discarded by a linker script, we just want the | |
7846 | section contents zeroed. Avoid any special processing. */ | |
7847 | howto = NULL; | |
7848 | if (r_type < R_PPC_max) | |
7849 | howto = ppc_elf_howto_table[r_type]; | |
c316a17c AM |
7850 | |
7851 | _bfd_clear_contents (howto, input_bfd, input_section, | |
7852 | contents + rel->r_offset); | |
7853 | wrel->r_offset = rel->r_offset; | |
7854 | wrel->r_info = 0; | |
7855 | wrel->r_addend = 0; | |
7856 | ||
7857 | /* For ld -r, remove relocations in debug sections against | |
7858 | sections defined in discarded sections. Not done for | |
7859 | non-debug to preserve relocs in .eh_frame which the | |
7860 | eh_frame editing code expects to be present. */ | |
7861 | if (bfd_link_relocatable (info) | |
7862 | && (input_section->flags & SEC_DEBUGGING)) | |
7863 | wrel--; | |
7864 | ||
7865 | continue; | |
ab96bf03 AM |
7866 | } |
7867 | ||
0e1862bb | 7868 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
7869 | { |
7870 | if (got2 != NULL | |
7871 | && r_type == R_PPC_PLTREL24 | |
f75e0e33 | 7872 | && rel->r_addend != 0) |
ab96bf03 AM |
7873 | { |
7874 | /* R_PPC_PLTREL24 is rather special. If non-zero, the | |
7875 | addend specifies the GOT pointer offset within .got2. */ | |
7876 | rel->r_addend += got2->output_offset; | |
7877 | } | |
53291d1f AM |
7878 | if (r_type != R_PPC_RELAX_PLT |
7879 | && r_type != R_PPC_RELAX_PLTREL24 | |
7880 | && r_type != R_PPC_RELAX) | |
c316a17c | 7881 | goto copy_reloc; |
ab96bf03 AM |
7882 | } |
7883 | ||
7619e7c7 AM |
7884 | /* TLS optimizations. Replace instruction sequences and relocs |
7885 | based on information we collected in tls_optimize. We edit | |
7886 | RELOCS so that --emit-relocs will output something sensible | |
7887 | for the final instruction stream. */ | |
7888 | tls_mask = 0; | |
7889 | tls_gd = 0; | |
727fc41e AM |
7890 | if (h != NULL) |
7891 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
7892 | else if (local_got_offsets != NULL) | |
7619e7c7 | 7893 | { |
e054468f | 7894 | struct plt_entry **local_plt; |
727fc41e | 7895 | char *lgot_masks; |
e054468f AM |
7896 | local_plt |
7897 | = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info); | |
7898 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
727fc41e | 7899 | tls_mask = lgot_masks[r_symndx]; |
7619e7c7 AM |
7900 | } |
7901 | ||
7902 | /* Ensure reloc mapping code below stays sane. */ | |
7903 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
7904 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
7905 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
7906 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
7907 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
7908 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
7909 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
7910 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
7911 | abort (); | |
7912 | switch (r_type) | |
7913 | { | |
7914 | default: | |
7915 | break; | |
7916 | ||
7917 | case R_PPC_GOT_TPREL16: | |
7918 | case R_PPC_GOT_TPREL16_LO: | |
e054468f | 7919 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7920 | && (tls_mask & TLS_TPREL) == 0) |
7921 | { | |
7922 | bfd_vma insn; | |
91d6fa6a | 7923 | |
c316a17c AM |
7924 | insn = bfd_get_32 (output_bfd, |
7925 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7926 | insn &= 31 << 21; |
7927 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
c316a17c AM |
7928 | bfd_put_32 (output_bfd, insn, |
7929 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7930 | r_type = R_PPC_TPREL16_HA; |
7931 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7932 | } | |
7933 | break; | |
7934 | ||
7935 | case R_PPC_TLS: | |
e054468f | 7936 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7937 | && (tls_mask & TLS_TPREL) == 0) |
7938 | { | |
2d0f3896 AM |
7939 | bfd_vma insn; |
7940 | ||
7619e7c7 | 7941 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
2d0f3896 AM |
7942 | insn = _bfd_elf_ppc_at_tls_transform (insn, 2); |
7943 | if (insn == 0) | |
7619e7c7 | 7944 | abort (); |
7619e7c7 AM |
7945 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
7946 | r_type = R_PPC_TPREL16_LO; | |
7947 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4fe5ca5b | 7948 | |
7619e7c7 | 7949 | /* Was PPC_TLS which sits on insn boundary, now |
4fe5ca5b GM |
7950 | PPC_TPREL16_LO which is at low-order half-word. */ |
7951 | rel->r_offset += d_offset; | |
7619e7c7 AM |
7952 | } |
7953 | break; | |
7954 | ||
7955 | case R_PPC_GOT_TLSGD16_HI: | |
7956 | case R_PPC_GOT_TLSGD16_HA: | |
7957 | tls_gd = TLS_TPRELGD; | |
e054468f | 7958 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
7619e7c7 AM |
7959 | goto tls_gdld_hi; |
7960 | break; | |
7961 | ||
7962 | case R_PPC_GOT_TLSLD16_HI: | |
7963 | case R_PPC_GOT_TLSLD16_HA: | |
e054468f | 7964 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 AM |
7965 | { |
7966 | tls_gdld_hi: | |
7967 | if ((tls_mask & tls_gd) != 0) | |
7968 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
7969 | + R_PPC_GOT_TPREL16); | |
7970 | else | |
7971 | { | |
4fe5ca5b | 7972 | rel->r_offset -= d_offset; |
b86ac8e3 | 7973 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7619e7c7 AM |
7974 | r_type = R_PPC_NONE; |
7975 | } | |
7976 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7977 | } | |
7978 | break; | |
7979 | ||
7980 | case R_PPC_GOT_TLSGD16: | |
7981 | case R_PPC_GOT_TLSGD16_LO: | |
7982 | tls_gd = TLS_TPRELGD; | |
e054468f | 7983 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
b7fcf6f6 | 7984 | goto tls_ldgd_opt; |
7619e7c7 AM |
7985 | break; |
7986 | ||
7987 | case R_PPC_GOT_TLSLD16: | |
7988 | case R_PPC_GOT_TLSLD16_LO: | |
e054468f | 7989 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 | 7990 | { |
3a71aa26 | 7991 | unsigned int insn1, insn2; |
b7fcf6f6 | 7992 | bfd_vma offset; |
7619e7c7 | 7993 | |
b7fcf6f6 | 7994 | tls_ldgd_opt: |
727fc41e AM |
7995 | offset = (bfd_vma) -1; |
7996 | /* If not using the newer R_PPC_TLSGD/LD to mark | |
7997 | __tls_get_addr calls, we must trust that the call | |
7998 | stays with its arg setup insns, ie. that the next | |
7999 | reloc is the __tls_get_addr call associated with | |
8000 | the current reloc. Edit both insns. */ | |
8001 | if (input_section->has_tls_get_addr_call | |
8002 | && rel + 1 < relend | |
8003 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
8004 | htab->tls_get_addr)) | |
8005 | offset = rel[1].r_offset; | |
b86ac8e3 AM |
8006 | /* We read the low GOT_TLS insn because we need to keep |
8007 | the destination reg. It may be something other than | |
8008 | the usual r3, and moved to r3 before the call by | |
8009 | intervening code. */ | |
8010 | insn1 = bfd_get_32 (output_bfd, | |
8011 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8012 | if ((tls_mask & tls_gd) != 0) |
8013 | { | |
8014 | /* IE */ | |
b86ac8e3 | 8015 | insn1 &= (0x1f << 21) | (0x1f << 16); |
b7fcf6f6 | 8016 | insn1 |= 32 << 26; /* lwz */ |
727fc41e AM |
8017 | if (offset != (bfd_vma) -1) |
8018 | { | |
f58d5a2d | 8019 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8020 | insn2 = 0x7c631214; /* add 3,3,2 */ |
8021 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8022 | } | |
b7fcf6f6 AM |
8023 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) |
8024 | + R_PPC_GOT_TPREL16); | |
8025 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8026 | } | |
8027 | else | |
8028 | { | |
8029 | /* LE */ | |
b86ac8e3 AM |
8030 | insn1 &= 0x1f << 21; |
8031 | insn1 |= 0x3c020000; /* addis r,2,0 */ | |
7619e7c7 AM |
8032 | if (tls_gd == 0) |
8033 | { | |
b7fcf6f6 | 8034 | /* Was an LD reloc. */ |
1d483afe AM |
8035 | for (r_symndx = 0; |
8036 | r_symndx < symtab_hdr->sh_info; | |
8037 | r_symndx++) | |
8038 | if (local_sections[r_symndx] == sec) | |
8039 | break; | |
8040 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8041 | r_symndx = STN_UNDEF; |
b7fcf6f6 | 8042 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8043 | if (r_symndx != STN_UNDEF) |
1d483afe AM |
8044 | rel->r_addend -= (local_syms[r_symndx].st_value |
8045 | + sec->output_offset | |
8046 | + sec->output_section->vma); | |
7619e7c7 | 8047 | } |
b7fcf6f6 AM |
8048 | r_type = R_PPC_TPREL16_HA; |
8049 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
727fc41e AM |
8050 | if (offset != (bfd_vma) -1) |
8051 | { | |
8052 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8053 | rel[1].r_offset = offset + d_offset; | |
8054 | rel[1].r_addend = rel->r_addend; | |
8055 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8056 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8057 | } | |
b7fcf6f6 AM |
8058 | } |
8059 | bfd_put_32 (output_bfd, insn1, | |
8060 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8061 | if (tls_gd == 0) |
8062 | { | |
8063 | /* We changed the symbol on an LD reloc. Start over | |
8064 | in order to get h, sym, sec etc. right. */ | |
c316a17c | 8065 | goto again; |
7619e7c7 | 8066 | } |
252b5132 | 8067 | } |
7619e7c7 | 8068 | break; |
727fc41e AM |
8069 | |
8070 | case R_PPC_TLSGD: | |
e054468f | 8071 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
727fc41e AM |
8072 | { |
8073 | unsigned int insn2; | |
8074 | bfd_vma offset = rel->r_offset; | |
8075 | ||
8076 | if ((tls_mask & TLS_TPRELGD) != 0) | |
8077 | { | |
8078 | /* IE */ | |
8079 | r_type = R_PPC_NONE; | |
8080 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
8081 | } | |
8082 | else | |
8083 | { | |
8084 | /* LE */ | |
8085 | r_type = R_PPC_TPREL16_LO; | |
8086 | rel->r_offset += d_offset; | |
8087 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8088 | } | |
8089 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8090 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8091 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8092 | BFD_ASSERT (offset == rel[1].r_offset); | |
f58d5a2d | 8093 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8094 | } |
8095 | break; | |
8096 | ||
8097 | case R_PPC_TLSLD: | |
e054468f | 8098 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
727fc41e AM |
8099 | { |
8100 | unsigned int insn2; | |
8101 | ||
8102 | for (r_symndx = 0; | |
8103 | r_symndx < symtab_hdr->sh_info; | |
8104 | r_symndx++) | |
8105 | if (local_sections[r_symndx] == sec) | |
8106 | break; | |
8107 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8108 | r_symndx = STN_UNDEF; |
727fc41e | 8109 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8110 | if (r_symndx != STN_UNDEF) |
727fc41e AM |
8111 | rel->r_addend -= (local_syms[r_symndx].st_value |
8112 | + sec->output_offset | |
8113 | + sec->output_section->vma); | |
8114 | ||
8115 | rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8116 | rel->r_offset += d_offset; | |
8117 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8118 | bfd_put_32 (output_bfd, insn2, | |
8119 | contents + rel->r_offset - d_offset); | |
8120 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8121 | BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); | |
f58d5a2d | 8122 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
c316a17c | 8123 | goto again; |
727fc41e AM |
8124 | } |
8125 | break; | |
7619e7c7 AM |
8126 | } |
8127 | ||
8128 | /* Handle other relocations that tweak non-addend part of insn. */ | |
8129 | branch_bit = 0; | |
8130 | switch (r_type) | |
8131 | { | |
8132 | default: | |
8133 | break; | |
8134 | ||
8135 | /* Branch taken prediction relocations. */ | |
8136 | case R_PPC_ADDR14_BRTAKEN: | |
8137 | case R_PPC_REL14_BRTAKEN: | |
8138 | branch_bit = BRANCH_PREDICT_BIT; | |
8139 | /* Fall thru */ | |
8140 | ||
4cc11e76 | 8141 | /* Branch not taken prediction relocations. */ |
7619e7c7 AM |
8142 | case R_PPC_ADDR14_BRNTAKEN: |
8143 | case R_PPC_REL14_BRNTAKEN: | |
91d6fa6a NC |
8144 | { |
8145 | bfd_vma insn; | |
7619e7c7 | 8146 | |
91d6fa6a NC |
8147 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
8148 | insn &= ~BRANCH_PREDICT_BIT; | |
8149 | insn |= branch_bit; | |
7619e7c7 | 8150 | |
91d6fa6a NC |
8151 | from = (rel->r_offset |
8152 | + input_section->output_offset | |
8153 | + input_section->output_section->vma); | |
7619e7c7 | 8154 | |
91d6fa6a NC |
8155 | /* Invert 'y' bit if not the default. */ |
8156 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
8157 | insn ^= BRANCH_PREDICT_BIT; | |
8158 | ||
8159 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
8160 | break; | |
8161 | } | |
252b5132 RH |
8162 | } |
8163 | ||
d3e454b9 AM |
8164 | if (ELIMINATE_COPY_RELOCS |
8165 | && h != NULL | |
8166 | && !h->def_regular | |
8167 | && h->protected_def | |
8168 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8169 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8170 | && htab->params->pic_fixup > 0) | |
8171 | { | |
8172 | /* Convert lis;addi or lis;load/store accessing a protected | |
8173 | variable defined in a shared library to PIC. */ | |
8174 | unsigned int insn; | |
8175 | ||
8176 | if (r_type == R_PPC_ADDR16_HA) | |
8177 | { | |
8178 | insn = bfd_get_32 (output_bfd, | |
8179 | contents + rel->r_offset - d_offset); | |
8180 | if ((insn & (0x3f << 26)) == (15u << 26) | |
8181 | && (insn & (0x1f << 16)) == 0 /* lis */) | |
8182 | { | |
8183 | bfd_byte *p; | |
8184 | bfd_vma off; | |
8185 | bfd_vma got_addr; | |
8186 | ||
8187 | p = (contents + input_section->size | |
8188 | - relax_info->workaround_size | |
8189 | - relax_info->picfixup_size | |
8190 | + picfixup_size); | |
8191 | off = (p - contents) - (rel->r_offset - d_offset); | |
8192 | if (off > 0x1fffffc || (off & 3) != 0) | |
8193 | info->callbacks->einfo | |
8194 | (_("%P: %H: fixup branch overflow\n"), | |
8195 | input_bfd, input_section, rel->r_offset); | |
8196 | ||
8197 | bfd_put_32 (output_bfd, B | off, | |
8198 | contents + rel->r_offset - d_offset); | |
8199 | got_addr = (htab->got->output_section->vma | |
8200 | + htab->got->output_offset | |
8201 | + (h->got.offset & ~1)); | |
c316a17c AM |
8202 | wrel->r_offset = (p - contents) + d_offset; |
8203 | wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA); | |
8204 | wrel->r_addend = got_addr; | |
d3e454b9 AM |
8205 | insn &= ~0xffff; |
8206 | insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff; | |
8207 | bfd_put_32 (output_bfd, insn, p); | |
8208 | ||
8209 | /* Convert lis to lwz, loading address from GOT. */ | |
8210 | insn &= ~0xffff; | |
8211 | insn ^= (32u ^ 15u) << 26; | |
8212 | insn |= (insn & (0x1f << 21)) >> 5; | |
8213 | insn |= got_addr & 0xffff; | |
8214 | bfd_put_32 (output_bfd, insn, p + 4); | |
8215 | ||
8216 | bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8); | |
8217 | picfixup_size += 12; | |
8218 | ||
8219 | /* Use one of the spare relocs, so --emit-relocs | |
8220 | output is reasonable. */ | |
8221 | memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); | |
c316a17c AM |
8222 | wrel++, rel++; |
8223 | rel->r_offset = wrel[-1].r_offset + 4; | |
d3e454b9 | 8224 | rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO); |
c316a17c | 8225 | rel->r_addend = wrel[-1].r_addend; |
d3e454b9 AM |
8226 | |
8227 | /* Continue on as if we had a got reloc, to output | |
8228 | dynamic reloc. */ | |
8229 | r_type = R_PPC_GOT16_LO; | |
8230 | } | |
8231 | else | |
8232 | info->callbacks->einfo | |
8233 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8234 | input_bfd, input_section, rel->r_offset, | |
8235 | "R_PPC_ADDR16_HA", insn); | |
8236 | } | |
8237 | else if (r_type == R_PPC_ADDR16_LO) | |
8238 | { | |
8239 | insn = bfd_get_32 (output_bfd, | |
8240 | contents + rel->r_offset - d_offset); | |
8241 | if ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
8242 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
8243 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
8244 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
8245 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
8246 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
8247 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
8248 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
8249 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
8250 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
8251 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
8252 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
8253 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
8254 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
8255 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
8256 | && (insn & 3) != 1) | |
8257 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
8258 | && ((insn & 3) == 0 || (insn & 3) == 3))) | |
8259 | { | |
8260 | /* Arrange to apply the reloc addend, if any. */ | |
8261 | relocation = 0; | |
8262 | unresolved_reloc = FALSE; | |
8263 | rel->r_info = ELF32_R_INFO (0, r_type); | |
8264 | } | |
8265 | else | |
8266 | info->callbacks->einfo | |
8267 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8268 | input_bfd, input_section, rel->r_offset, | |
8269 | "R_PPC_ADDR16_LO", insn); | |
8270 | } | |
8271 | } | |
8272 | ||
e054468f | 8273 | ifunc = NULL; |
25f23106 | 8274 | if (!htab->is_vxworks) |
e054468f | 8275 | { |
de972ffa AM |
8276 | struct plt_entry *ent; |
8277 | ||
e054468f AM |
8278 | if (h != NULL) |
8279 | { | |
8280 | if (h->type == STT_GNU_IFUNC) | |
8281 | ifunc = &h->plt.plist; | |
8282 | } | |
de972ffa AM |
8283 | else if (local_got_offsets != NULL |
8284 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
e054468f | 8285 | { |
de972ffa | 8286 | struct plt_entry **local_plt; |
e054468f | 8287 | |
de972ffa AM |
8288 | local_plt = (struct plt_entry **) (local_got_offsets |
8289 | + symtab_hdr->sh_info); | |
8290 | ifunc = local_plt + r_symndx; | |
e054468f | 8291 | } |
e054468f | 8292 | |
de972ffa AM |
8293 | ent = NULL; |
8294 | if (ifunc != NULL | |
0e1862bb | 8295 | && (!bfd_link_pic (info) |
de972ffa AM |
8296 | || is_branch_reloc (r_type))) |
8297 | { | |
8298 | addend = 0; | |
0e1862bb | 8299 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
de972ffa AM |
8300 | addend = rel->r_addend; |
8301 | ent = find_plt_ent (ifunc, got2, addend); | |
8302 | } | |
8303 | if (ent != NULL) | |
8304 | { | |
888a7fc3 AM |
8305 | if (bfd_link_pic (info) |
8306 | && ent->sec != got2 | |
8307 | && htab->plt_type != PLT_NEW | |
8308 | && (!htab->elf.dynamic_sections_created | |
8309 | || h == NULL | |
8310 | || h->dynindx == -1)) | |
8311 | { | |
8312 | /* Uh oh, we are going to create a pic glink stub | |
8313 | for an ifunc (here for h == NULL and later in | |
8314 | finish_dynamic_symbol for h != NULL), and | |
8315 | apparently are using code compiled with | |
8316 | -mbss-plt. The difficulty is that -mbss-plt code | |
8317 | gives no indication via a magic PLTREL24 addend | |
8318 | whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or | |
8319 | is pointing into a .got2 section (and how far | |
8320 | into .got2). */ | |
8321 | info->callbacks->einfo | |
8322 | (_("%X%P: %H: unsupported bss-plt -fPIC ifunc %s\n"), | |
8323 | input_bfd, input_section, rel->r_offset, sym_name); | |
8324 | } | |
e054468f AM |
8325 | if (h == NULL && (ent->plt.offset & 1) == 0) |
8326 | { | |
8327 | Elf_Internal_Rela rela; | |
8328 | bfd_byte *loc; | |
8329 | ||
8330 | rela.r_offset = (htab->iplt->output_section->vma | |
8331 | + htab->iplt->output_offset | |
8332 | + ent->plt.offset); | |
8333 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8334 | rela.r_addend = relocation; | |
25f23106 AM |
8335 | loc = htab->reliplt->contents; |
8336 | loc += (htab->reliplt->reloc_count++ | |
8337 | * sizeof (Elf32_External_Rela)); | |
e054468f AM |
8338 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
8339 | ||
8340 | ent->plt.offset |= 1; | |
8341 | } | |
8342 | if (h == NULL && (ent->glink_offset & 1) == 0) | |
8343 | { | |
a7f2871e AM |
8344 | unsigned char *p = ((unsigned char *) htab->glink->contents |
8345 | + ent->glink_offset); | |
8346 | write_glink_stub (ent, htab->iplt, p, info); | |
e054468f AM |
8347 | ent->glink_offset |= 1; |
8348 | } | |
8349 | ||
8350 | unresolved_reloc = FALSE; | |
8351 | if (htab->plt_type == PLT_NEW | |
8352 | || !htab->elf.dynamic_sections_created | |
c7e17e05 AM |
8353 | || h == NULL |
8354 | || h->dynindx == -1) | |
e054468f AM |
8355 | relocation = (htab->glink->output_section->vma |
8356 | + htab->glink->output_offset | |
8357 | + (ent->glink_offset & ~1)); | |
8358 | else | |
8359 | relocation = (htab->plt->output_section->vma | |
8360 | + htab->plt->output_offset | |
8361 | + ent->plt.offset); | |
8362 | } | |
8363 | } | |
8364 | ||
7619e7c7 AM |
8365 | addend = rel->r_addend; |
8366 | tls_type = 0; | |
8367 | howto = NULL; | |
55fd94b0 AM |
8368 | if (r_type < R_PPC_max) |
8369 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 8370 | switch (r_type) |
252b5132 RH |
8371 | { |
8372 | default: | |
25f53a85 | 8373 | info->callbacks->einfo |
8de848d8 | 8374 | (_("%P: %B: unknown relocation type %d for symbol %s\n"), |
d003868e | 8375 | input_bfd, (int) r_type, sym_name); |
252b5132 RH |
8376 | |
8377 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8378 | ret = FALSE; |
c316a17c | 8379 | goto copy_reloc; |
252b5132 | 8380 | |
7619e7c7 AM |
8381 | case R_PPC_NONE: |
8382 | case R_PPC_TLS: | |
727fc41e AM |
8383 | case R_PPC_TLSGD: |
8384 | case R_PPC_TLSLD: | |
7619e7c7 AM |
8385 | case R_PPC_EMB_MRKREF: |
8386 | case R_PPC_GNU_VTINHERIT: | |
8387 | case R_PPC_GNU_VTENTRY: | |
c316a17c | 8388 | goto copy_reloc; |
7595d193 | 8389 | |
7619e7c7 AM |
8390 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
8391 | address in the GOT as relocation value instead of the | |
8392 | symbol's value itself. Also, create a GOT entry for the | |
8393 | symbol and put the symbol value there. */ | |
8394 | case R_PPC_GOT_TLSGD16: | |
8395 | case R_PPC_GOT_TLSGD16_LO: | |
8396 | case R_PPC_GOT_TLSGD16_HI: | |
8397 | case R_PPC_GOT_TLSGD16_HA: | |
8398 | tls_type = TLS_TLS | TLS_GD; | |
8399 | goto dogot; | |
8400 | ||
8401 | case R_PPC_GOT_TLSLD16: | |
8402 | case R_PPC_GOT_TLSLD16_LO: | |
8403 | case R_PPC_GOT_TLSLD16_HI: | |
8404 | case R_PPC_GOT_TLSLD16_HA: | |
8405 | tls_type = TLS_TLS | TLS_LD; | |
8406 | goto dogot; | |
8407 | ||
8408 | case R_PPC_GOT_TPREL16: | |
8409 | case R_PPC_GOT_TPREL16_LO: | |
8410 | case R_PPC_GOT_TPREL16_HI: | |
8411 | case R_PPC_GOT_TPREL16_HA: | |
8412 | tls_type = TLS_TLS | TLS_TPREL; | |
8413 | goto dogot; | |
8414 | ||
8415 | case R_PPC_GOT_DTPREL16: | |
8416 | case R_PPC_GOT_DTPREL16_LO: | |
8417 | case R_PPC_GOT_DTPREL16_HI: | |
8418 | case R_PPC_GOT_DTPREL16_HA: | |
8419 | tls_type = TLS_TLS | TLS_DTPREL; | |
8420 | goto dogot; | |
8421 | ||
8422 | case R_PPC_GOT16: | |
8423 | case R_PPC_GOT16_LO: | |
8424 | case R_PPC_GOT16_HI: | |
8425 | case R_PPC_GOT16_HA: | |
727fc41e | 8426 | tls_mask = 0; |
7619e7c7 AM |
8427 | dogot: |
8428 | { | |
8429 | /* Relocation is to the entry for this symbol in the global | |
8430 | offset table. */ | |
8431 | bfd_vma off; | |
8432 | bfd_vma *offp; | |
8433 | unsigned long indx; | |
8434 | ||
8435 | if (htab->got == NULL) | |
8436 | abort (); | |
8437 | ||
8438 | indx = 0; | |
8439 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 8440 | && (h == NULL |
f5385ebf | 8441 | || !h->def_dynamic)) |
7619e7c7 AM |
8442 | offp = &htab->tlsld_got.offset; |
8443 | else if (h != NULL) | |
8444 | { | |
8445 | bfd_boolean dyn; | |
8446 | dyn = htab->elf.dynamic_sections_created; | |
0e1862bb L |
8447 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
8448 | || (bfd_link_pic (info) | |
7619e7c7 AM |
8449 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
8450 | /* This is actually a static link, or it is a | |
8451 | -Bsymbolic link and the symbol is defined | |
8452 | locally, or the symbol was forced to be local | |
8453 | because of a version file. */ | |
8454 | ; | |
8455 | else | |
8456 | { | |
14acf4dc | 8457 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 AM |
8458 | indx = h->dynindx; |
8459 | unresolved_reloc = FALSE; | |
8460 | } | |
8461 | offp = &h->got.offset; | |
8462 | } | |
8463 | else | |
8464 | { | |
8465 | if (local_got_offsets == NULL) | |
8466 | abort (); | |
8467 | offp = &local_got_offsets[r_symndx]; | |
8468 | } | |
8469 | ||
8470 | /* The offset must always be a multiple of 4. We use the | |
8471 | least significant bit to record whether we have already | |
8472 | processed this entry. */ | |
8473 | off = *offp; | |
8474 | if ((off & 1) != 0) | |
8475 | off &= ~1; | |
8476 | else | |
8477 | { | |
70bccea4 AM |
8478 | unsigned int tls_m = (tls_mask |
8479 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
8480 | | TLS_TPREL | TLS_TPRELGD)); | |
8481 | ||
8482 | if (offp == &htab->tlsld_got.offset) | |
8483 | tls_m = TLS_LD; | |
8484 | else if (h == NULL | |
f5385ebf | 8485 | || !h->def_dynamic) |
70bccea4 AM |
8486 | tls_m &= ~TLS_LD; |
8487 | ||
8488 | /* We might have multiple got entries for this sym. | |
8489 | Initialize them all. */ | |
8490 | do | |
7619e7c7 | 8491 | { |
70bccea4 AM |
8492 | int tls_ty = 0; |
8493 | ||
8494 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 8495 | { |
70bccea4 AM |
8496 | tls_ty = TLS_TLS | TLS_LD; |
8497 | tls_m &= ~TLS_LD; | |
8498 | } | |
8499 | else if ((tls_m & TLS_GD) != 0) | |
8500 | { | |
8501 | tls_ty = TLS_TLS | TLS_GD; | |
8502 | tls_m &= ~TLS_GD; | |
8503 | } | |
8504 | else if ((tls_m & TLS_DTPREL) != 0) | |
8505 | { | |
8506 | tls_ty = TLS_TLS | TLS_DTPREL; | |
8507 | tls_m &= ~TLS_DTPREL; | |
8508 | } | |
8509 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
8510 | { | |
8511 | tls_ty = TLS_TLS | TLS_TPREL; | |
8512 | tls_m = 0; | |
7619e7c7 | 8513 | } |
7619e7c7 | 8514 | |
70bccea4 | 8515 | /* Generate relocs for the dynamic linker. */ |
0e1862bb | 8516 | if ((bfd_link_pic (info) || indx != 0) |
d6e14abc AM |
8517 | && (offp == &htab->tlsld_got.offset |
8518 | || h == NULL | |
4e795f50 AM |
8519 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
8520 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 8521 | { |
91e21fb7 | 8522 | asection *rsec = htab->relgot; |
91d6fa6a | 8523 | bfd_byte * loc; |
91e21fb7 | 8524 | |
0bed072f AM |
8525 | if (ifunc != NULL) |
8526 | rsec = htab->reliplt; | |
70bccea4 AM |
8527 | outrel.r_offset = (htab->got->output_section->vma |
8528 | + htab->got->output_offset | |
8529 | + off); | |
e515b051 | 8530 | outrel.r_addend = 0; |
70bccea4 AM |
8531 | if (tls_ty & (TLS_LD | TLS_GD)) |
8532 | { | |
8533 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
8534 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8535 | { | |
25f23106 AM |
8536 | loc = rsec->contents; |
8537 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8538 | * sizeof (Elf32_External_Rela)); |
8539 | bfd_elf32_swap_reloca_out (output_bfd, | |
8540 | &outrel, loc); | |
e515b051 | 8541 | outrel.r_offset += 4; |
70bccea4 AM |
8542 | outrel.r_info |
8543 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
8544 | } |
8545 | } | |
8546 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
8547 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
8548 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8549 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
25f23106 | 8550 | else if (indx != 0) |
70bccea4 | 8551 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); |
25f23106 AM |
8552 | else if (ifunc != NULL) |
8553 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8554 | else | |
8555 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
d6e14abc | 8556 | if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) |
e515b051 AM |
8557 | { |
8558 | outrel.r_addend += relocation; | |
8559 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
989f9879 AM |
8560 | { |
8561 | if (htab->elf.tls_sec == NULL) | |
8562 | outrel.r_addend = 0; | |
8563 | else | |
8564 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
8565 | } | |
e515b051 | 8566 | } |
25f23106 AM |
8567 | loc = rsec->contents; |
8568 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8569 | * sizeof (Elf32_External_Rela)); |
8570 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
8571 | } |
8572 | ||
70bccea4 AM |
8573 | /* Init the .got section contents if we're not |
8574 | emitting a reloc. */ | |
8575 | else | |
7619e7c7 | 8576 | { |
70bccea4 AM |
8577 | bfd_vma value = relocation; |
8578 | ||
7b609f53 AM |
8579 | if (tls_ty == (TLS_TLS | TLS_LD)) |
8580 | value = 1; | |
8581 | else if (tls_ty != 0) | |
70bccea4 | 8582 | { |
989f9879 AM |
8583 | if (htab->elf.tls_sec == NULL) |
8584 | value = 0; | |
8585 | else | |
8586 | { | |
8587 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
8588 | if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8589 | value += DTP_OFFSET - TP_OFFSET; | |
8590 | } | |
70bccea4 | 8591 | |
7b609f53 AM |
8592 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8593 | { | |
8594 | bfd_put_32 (output_bfd, value, | |
8595 | htab->got->contents + off + 4); | |
8596 | value = 1; | |
8597 | } | |
70bccea4 | 8598 | } |
70bccea4 AM |
8599 | bfd_put_32 (output_bfd, value, |
8600 | htab->got->contents + off); | |
7619e7c7 | 8601 | } |
70bccea4 AM |
8602 | |
8603 | off += 4; | |
8604 | if (tls_ty & (TLS_LD | TLS_GD)) | |
8605 | off += 4; | |
7619e7c7 | 8606 | } |
70bccea4 AM |
8607 | while (tls_m != 0); |
8608 | ||
8609 | off = *offp; | |
8610 | *offp = off | 1; | |
7619e7c7 AM |
8611 | } |
8612 | ||
8613 | if (off >= (bfd_vma) -2) | |
8614 | abort (); | |
8615 | ||
70bccea4 AM |
8616 | if ((tls_type & TLS_TLS) != 0) |
8617 | { | |
8618 | if (tls_type != (TLS_TLS | TLS_LD)) | |
8619 | { | |
8620 | if ((tls_mask & TLS_LD) != 0 | |
8621 | && !(h == NULL | |
f5385ebf | 8622 | || !h->def_dynamic)) |
70bccea4 AM |
8623 | off += 8; |
8624 | if (tls_type != (TLS_TLS | TLS_GD)) | |
8625 | { | |
8626 | if ((tls_mask & TLS_GD) != 0) | |
8627 | off += 8; | |
8628 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
8629 | { | |
8630 | if ((tls_mask & TLS_DTPREL) != 0) | |
8631 | off += 4; | |
8632 | } | |
8633 | } | |
8634 | } | |
8635 | } | |
8636 | ||
d3e454b9 AM |
8637 | /* If here for a picfixup, we're done. */ |
8638 | if (r_type != ELF32_R_TYPE (rel->r_info)) | |
c316a17c | 8639 | goto copy_reloc; |
d3e454b9 | 8640 | |
e87d4038 AM |
8641 | relocation = (htab->got->output_section->vma |
8642 | + htab->got->output_offset | |
8643 | + off | |
8644 | - SYM_VAL (htab->elf.hgot)); | |
7619e7c7 AM |
8645 | |
8646 | /* Addends on got relocations don't make much sense. | |
8647 | x+off@got is actually x@got+off, and since the got is | |
8648 | generated by a hash table traversal, the value in the | |
8649 | got at entry m+n bears little relation to the entry m. */ | |
8650 | if (addend != 0) | |
25f53a85 | 8651 | info->callbacks->einfo |
8de848d8 | 8652 | (_("%P: %H: non-zero addend on %s reloc against `%s'\n"), |
25f53a85 | 8653 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 8654 | howto->name, |
7619e7c7 AM |
8655 | sym_name); |
8656 | } | |
86c95733 | 8657 | break; |
7619e7c7 | 8658 | |
86c95733 | 8659 | /* Relocations that need no special processing. */ |
7619e7c7 | 8660 | case R_PPC_LOCAL24PC: |
252b5132 RH |
8661 | /* It makes no sense to point a local relocation |
8662 | at a symbol not in this object. */ | |
7b609f53 | 8663 | if (unresolved_reloc) |
252b5132 | 8664 | { |
1a72702b AM |
8665 | (*info->callbacks->undefined_symbol) (info, |
8666 | h->root.root.string, | |
8667 | input_bfd, | |
8668 | input_section, | |
8669 | rel->r_offset, | |
8670 | TRUE); | |
c316a17c | 8671 | goto copy_reloc; |
252b5132 | 8672 | } |
888a7fc3 AM |
8673 | if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info)) |
8674 | { | |
8675 | /* @local on an ifunc does not really make sense since | |
8676 | the ifunc resolver can take you anywhere. More | |
8677 | seriously, calls to ifuncs must go through a plt call | |
8678 | stub, and for pic the plt call stubs uses r30 to | |
8679 | access the PLT. The problem is that a call that is | |
8680 | local won't have the +32k reloc addend trick marking | |
8681 | -fPIC code, so the linker won't know whether r30 is | |
8682 | _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */ | |
8683 | info->callbacks->einfo (_("%X%P: %H: @local call to ifunc %s\n"), | |
8684 | input_bfd, input_section, rel->r_offset, | |
8685 | h->root.root.string); | |
8686 | } | |
252b5132 RH |
8687 | break; |
8688 | ||
7619e7c7 AM |
8689 | case R_PPC_DTPREL16: |
8690 | case R_PPC_DTPREL16_LO: | |
8691 | case R_PPC_DTPREL16_HI: | |
8692 | case R_PPC_DTPREL16_HA: | |
989f9879 AM |
8693 | if (htab->elf.tls_sec != NULL) |
8694 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8695 | break; |
8696 | ||
70bccea4 AM |
8697 | /* Relocations that may need to be propagated if this is a shared |
8698 | object. */ | |
7619e7c7 AM |
8699 | case R_PPC_TPREL16: |
8700 | case R_PPC_TPREL16_LO: | |
8701 | case R_PPC_TPREL16_HI: | |
8702 | case R_PPC_TPREL16_HA: | |
766bc656 AM |
8703 | if (h != NULL |
8704 | && h->root.type == bfd_link_hash_undefweak | |
8705 | && h->dynindx == -1) | |
8706 | { | |
8707 | /* Make this relocation against an undefined weak symbol | |
8708 | resolve to zero. This is really just a tweak, since | |
8709 | code using weak externs ought to check that they are | |
8710 | defined before using them. */ | |
8711 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
8712 | unsigned int insn = bfd_get_32 (output_bfd, p); | |
8713 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 2); | |
8714 | if (insn != 0) | |
8715 | bfd_put_32 (output_bfd, insn, p); | |
8716 | break; | |
8717 | } | |
989f9879 AM |
8718 | if (htab->elf.tls_sec != NULL) |
8719 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8720 | /* The TPREL16 relocs shouldn't really be used in shared |
8721 | libs as they will result in DT_TEXTREL being set, but | |
8722 | support them anyway. */ | |
8723 | goto dodyn; | |
8724 | ||
8725 | case R_PPC_TPREL32: | |
989f9879 AM |
8726 | if (htab->elf.tls_sec != NULL) |
8727 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8728 | goto dodyn; |
8729 | ||
8730 | case R_PPC_DTPREL32: | |
989f9879 AM |
8731 | if (htab->elf.tls_sec != NULL) |
8732 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8733 | goto dodyn; |
8734 | ||
e515b051 AM |
8735 | case R_PPC_DTPMOD32: |
8736 | relocation = 1; | |
8737 | addend = 0; | |
8738 | goto dodyn; | |
8739 | ||
d7128ce4 AM |
8740 | case R_PPC_REL16: |
8741 | case R_PPC_REL16_LO: | |
8742 | case R_PPC_REL16_HI: | |
8743 | case R_PPC_REL16_HA: | |
a680de9a | 8744 | case R_PPC_REL16DX_HA: |
d7128ce4 AM |
8745 | break; |
8746 | ||
7619e7c7 | 8747 | case R_PPC_REL32: |
625af618 AM |
8748 | if (h == NULL || h == htab->elf.hgot) |
8749 | break; | |
8750 | /* fall through */ | |
8751 | ||
8752 | case R_PPC_ADDR32: | |
8753 | case R_PPC_ADDR16: | |
8754 | case R_PPC_ADDR16_LO: | |
8755 | case R_PPC_ADDR16_HI: | |
8756 | case R_PPC_ADDR16_HA: | |
8757 | case R_PPC_UADDR32: | |
8758 | case R_PPC_UADDR16: | |
8759 | goto dodyn; | |
8760 | ||
b9c361e0 JL |
8761 | case R_PPC_VLE_REL8: |
8762 | case R_PPC_VLE_REL15: | |
8763 | case R_PPC_VLE_REL24: | |
625af618 | 8764 | case R_PPC_REL24: |
7619e7c7 AM |
8765 | case R_PPC_REL14: |
8766 | case R_PPC_REL14_BRTAKEN: | |
8767 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
8768 | /* If these relocations are not to a named symbol, they can be |
8769 | handled right here, no need to bother the dynamic linker. */ | |
89200bf8 | 8770 | if (SYMBOL_CALLS_LOCAL (info, h) |
3b36f7e6 | 8771 | || h == htab->elf.hgot) |
252b5132 | 8772 | break; |
70bccea4 | 8773 | /* fall through */ |
252b5132 | 8774 | |
7619e7c7 | 8775 | case R_PPC_ADDR24: |
7619e7c7 AM |
8776 | case R_PPC_ADDR14: |
8777 | case R_PPC_ADDR14_BRTAKEN: | |
8778 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 8779 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
8780 | break; |
8781 | /* fall through */ | |
8782 | ||
7619e7c7 | 8783 | dodyn: |
3348747a NS |
8784 | if ((input_section->flags & SEC_ALLOC) == 0 |
8785 | || is_vxworks_tls) | |
c87b5a93 | 8786 | break; |
c87b5a93 | 8787 | |
0e1862bb | 8788 | if ((bfd_link_pic (info) |
89200bf8 AM |
8789 | && !(h != NULL |
8790 | && ((h->root.type == bfd_link_hash_undefined | |
8791 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
8792 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
8793 | || (h->root.type == bfd_link_hash_undefweak | |
8794 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) | |
1d483afe | 8795 | && (must_be_dyn_reloc (info, r_type) |
f6c52c13 | 8796 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe | 8797 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 8798 | && !bfd_link_pic (info) |
ee05f2fe AM |
8799 | && h != NULL |
8800 | && h->dynindx != -1 | |
f5385ebf | 8801 | && !h->non_got_ref |
d3e454b9 AM |
8802 | && !h->def_regular |
8803 | && !(h->protected_def | |
8804 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8805 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8806 | && htab->params->pic_fixup > 0))) | |
252b5132 | 8807 | { |
0bb2d96a | 8808 | int skip; |
f95f8542 AM |
8809 | bfd_byte *loc; |
8810 | asection *sreloc; | |
252b5132 | 8811 | #ifdef DEBUG |
55fd94b0 AM |
8812 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
8813 | "create relocation for %s\n", | |
70bccea4 AM |
8814 | (h && h->root.root.string |
8815 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
8816 | #endif |
8817 | ||
8818 | /* When generating a shared object, these relocations | |
70bccea4 AM |
8819 | are copied into the output file to be resolved at run |
8820 | time. */ | |
f95f8542 AM |
8821 | sreloc = elf_section_data (input_section)->sreloc; |
8822 | if (ifunc) | |
8823 | sreloc = htab->reliplt; | |
252b5132 | 8824 | if (sreloc == NULL) |
f95f8542 | 8825 | return FALSE; |
252b5132 | 8826 | |
0bb2d96a | 8827 | skip = 0; |
5b914448 AM |
8828 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, |
8829 | input_section, | |
8830 | rel->r_offset); | |
0bb2d96a JJ |
8831 | if (outrel.r_offset == (bfd_vma) -1 |
8832 | || outrel.r_offset == (bfd_vma) -2) | |
8833 | skip = (int) outrel.r_offset; | |
252b5132 RH |
8834 | outrel.r_offset += (input_section->output_section->vma |
8835 | + input_section->output_offset); | |
8836 | ||
8837 | if (skip) | |
8838 | memset (&outrel, 0, sizeof outrel); | |
89200bf8 AM |
8839 | else if ((h != NULL |
8840 | && (h->root.type == bfd_link_hash_undefined | |
8841 | || h->root.type == bfd_link_hash_undefweak)) | |
8842 | || !SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 | 8843 | { |
14acf4dc | 8844 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 | 8845 | unresolved_reloc = FALSE; |
252b5132 RH |
8846 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
8847 | outrel.r_addend = rel->r_addend; | |
8848 | } | |
8849 | else | |
8850 | { | |
47388f4c AM |
8851 | outrel.r_addend = relocation + rel->r_addend; |
8852 | ||
25f23106 | 8853 | if (r_type != R_PPC_ADDR32) |
252b5132 | 8854 | { |
89200bf8 | 8855 | long indx = 0; |
252b5132 | 8856 | |
25f23106 AM |
8857 | if (ifunc != NULL) |
8858 | { | |
8859 | /* If we get here when building a static | |
8860 | executable, then the libc startup function | |
8861 | responsible for applying indirect function | |
8862 | relocations is going to complain about | |
8863 | the reloc type. | |
8864 | If we get here when building a dynamic | |
8865 | executable, it will be because we have | |
8866 | a text relocation. The dynamic loader | |
8867 | will set the text segment writable and | |
8868 | non-executable to apply text relocations. | |
8869 | So we'll segfault when trying to run the | |
8870 | indirection function to resolve the reloc. */ | |
25f53a85 | 8871 | info->callbacks->einfo |
8de848d8 | 8872 | (_("%P: %H: relocation %s for indirect " |
25f53a85 AM |
8873 | "function %s unsupported\n"), |
8874 | input_bfd, input_section, rel->r_offset, | |
25f23106 AM |
8875 | howto->name, |
8876 | sym_name); | |
8877 | ret = FALSE; | |
8878 | } | |
cf35638d | 8879 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
89200bf8 | 8880 | ; |
252b5132 RH |
8881 | else if (sec == NULL || sec->owner == NULL) |
8882 | { | |
8883 | bfd_set_error (bfd_error_bad_value); | |
89200bf8 | 8884 | ret = FALSE; |
252b5132 RH |
8885 | } |
8886 | else | |
8887 | { | |
8888 | asection *osec; | |
8889 | ||
47388f4c AM |
8890 | /* We are turning this relocation into one |
8891 | against a section symbol. It would be | |
8892 | proper to subtract the symbol's value, | |
8893 | osec->vma, from the emitted reloc addend, | |
25f23106 AM |
8894 | but ld.so expects buggy relocs. |
8895 | FIXME: Why not always use a zero index? */ | |
252b5132 RH |
8896 | osec = sec->output_section; |
8897 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
8898 | if (indx == 0) |
8899 | { | |
8900 | osec = htab->elf.text_index_section; | |
8901 | indx = elf_section_data (osec)->dynindx; | |
8902 | } | |
8903 | BFD_ASSERT (indx != 0); | |
252b5132 | 8904 | #ifdef DEBUG |
74541ad4 | 8905 | if (indx == 0) |
e460dd0d | 8906 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
55fd94b0 AM |
8907 | indx, osec->name, osec->flags, |
8908 | h->root.root.string); | |
252b5132 RH |
8909 | #endif |
8910 | } | |
8911 | ||
8912 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 | 8913 | } |
25f23106 AM |
8914 | else if (ifunc != NULL) |
8915 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8916 | else | |
8917 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
252b5132 RH |
8918 | } |
8919 | ||
947216bf AM |
8920 | loc = sreloc->contents; |
8921 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
8922 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 8923 | |
2243deae | 8924 | if (skip == -1) |
c316a17c | 8925 | goto copy_reloc; |
2243deae L |
8926 | |
8927 | /* This reloc will be computed at runtime. We clear the memory | |
8928 | so that it contains predictable value. */ | |
8929 | if (! skip | |
8930 | && ((input_section->flags & SEC_ALLOC) != 0 | |
8931 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
8932 | { | |
8933 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
8934 | addend = 0; | |
8935 | break; | |
8936 | } | |
252b5132 | 8937 | } |
252b5132 RH |
8938 | break; |
8939 | ||
32af9f6e AM |
8940 | case R_PPC_RELAX_PLT: |
8941 | case R_PPC_RELAX_PLTREL24: | |
de972ffa AM |
8942 | if (h != NULL) |
8943 | { | |
32af9f6e AM |
8944 | struct plt_entry *ent; |
8945 | bfd_vma got2_addend = 0; | |
8946 | ||
8947 | if (r_type == R_PPC_RELAX_PLTREL24) | |
8948 | { | |
0e1862bb | 8949 | if (bfd_link_pic (info)) |
32af9f6e AM |
8950 | got2_addend = addend; |
8951 | addend = 0; | |
8952 | } | |
8953 | ent = find_plt_ent (&h->plt.plist, got2, got2_addend); | |
de972ffa AM |
8954 | if (htab->plt_type == PLT_NEW) |
8955 | relocation = (htab->glink->output_section->vma | |
8956 | + htab->glink->output_offset | |
8957 | + ent->glink_offset); | |
8958 | else | |
8959 | relocation = (htab->plt->output_section->vma | |
8960 | + htab->plt->output_offset | |
8961 | + ent->plt.offset); | |
8962 | } | |
b4a38de6 AM |
8963 | /* Fall thru */ |
8964 | ||
32af9f6e | 8965 | case R_PPC_RELAX: |
9abc968f | 8966 | { |
53291d1f AM |
8967 | const int *stub; |
8968 | size_t size; | |
8969 | size_t insn_offset = rel->r_offset; | |
8970 | unsigned int insn; | |
9abc968f | 8971 | |
0e1862bb | 8972 | if (bfd_link_pic (info)) |
53291d1f AM |
8973 | { |
8974 | relocation -= (input_section->output_section->vma | |
8975 | + input_section->output_offset | |
8976 | + rel->r_offset - 4); | |
8977 | stub = shared_stub_entry; | |
8978 | bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12); | |
8979 | bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8); | |
8980 | bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4); | |
8981 | stub += 3; | |
8982 | size = ARRAY_SIZE (shared_stub_entry) - 3; | |
8983 | } | |
8984 | else | |
8985 | { | |
8986 | stub = stub_entry; | |
8987 | size = ARRAY_SIZE (stub_entry); | |
8988 | } | |
9abc968f | 8989 | |
9abc968f | 8990 | relocation += addend; |
0e1862bb | 8991 | if (bfd_link_relocatable (info)) |
53291d1f AM |
8992 | relocation = 0; |
8993 | ||
8994 | /* First insn is HA, second is LO. */ | |
8995 | insn = *stub++; | |
8996 | insn |= ((relocation + 0x8000) >> 16) & 0xffff; | |
8997 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
8998 | insn_offset += 4; | |
8999 | ||
9000 | insn = *stub++; | |
9001 | insn |= relocation & 0xffff; | |
9002 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
9003 | insn_offset += 4; | |
9004 | size -= 2; | |
9005 | ||
9006 | while (size != 0) | |
9007 | { | |
9008 | insn = *stub++; | |
9009 | --size; | |
9010 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
9011 | insn_offset += 4; | |
9012 | } | |
9bc4e62b NS |
9013 | |
9014 | /* Rewrite the reloc and convert one of the trailing nop | |
9015 | relocs to describe this relocation. */ | |
9016 | BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); | |
9017 | /* The relocs are at the bottom 2 bytes */ | |
c316a17c AM |
9018 | wrel->r_offset = rel->r_offset + d_offset; |
9019 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
9020 | wrel->r_addend = rel->r_addend; | |
9021 | memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel)); | |
9022 | wrel++, rel++; | |
9023 | wrel->r_offset += 4; | |
9024 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
9abc968f | 9025 | } |
8517fae7 | 9026 | continue; |
deaaf2f3 | 9027 | |
70bccea4 | 9028 | /* Indirect .sdata relocation. */ |
7619e7c7 | 9029 | case R_PPC_EMB_SDAI16: |
c9a2f333 | 9030 | BFD_ASSERT (htab->sdata[0].section != NULL); |
bd6c6e2b AM |
9031 | if (!is_static_defined (htab->sdata[0].sym)) |
9032 | { | |
9033 | unresolved_reloc = TRUE; | |
9034 | break; | |
9035 | } | |
7619e7c7 | 9036 | relocation |
76750a2f AM |
9037 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], |
9038 | h, relocation, rel); | |
bd6c6e2b | 9039 | addend = 0; |
252b5132 RH |
9040 | break; |
9041 | ||
70bccea4 | 9042 | /* Indirect .sdata2 relocation. */ |
7619e7c7 | 9043 | case R_PPC_EMB_SDA2I16: |
c9a2f333 | 9044 | BFD_ASSERT (htab->sdata[1].section != NULL); |
bd6c6e2b AM |
9045 | if (!is_static_defined (htab->sdata[1].sym)) |
9046 | { | |
9047 | unresolved_reloc = TRUE; | |
9048 | break; | |
9049 | } | |
7619e7c7 | 9050 | relocation |
76750a2f AM |
9051 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], |
9052 | h, relocation, rel); | |
bd6c6e2b | 9053 | addend = 0; |
252b5132 RH |
9054 | break; |
9055 | ||
70bccea4 AM |
9056 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
9057 | section, not the actual VMA. This is appropriate when generating | |
9058 | an embedded ELF object, for which the .got section acts like the | |
9059 | AIX .toc section. */ | |
7619e7c7 | 9060 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
3b4f3a11 AM |
9061 | if (sec == NULL || sec->output_section == NULL) |
9062 | { | |
9063 | unresolved_reloc = TRUE; | |
9064 | break; | |
9065 | } | |
a0f49396 NC |
9066 | BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec), |
9067 | ".got") == 0 | |
9068 | || strcmp (bfd_get_section_name (sec->owner, sec), | |
9069 | ".cgot") == 0); | |
252b5132 | 9070 | |
3b4f3a11 | 9071 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
9072 | break; |
9073 | ||
7619e7c7 | 9074 | case R_PPC_PLTREL24: |
f75e0e33 AM |
9075 | if (h != NULL && ifunc == NULL) |
9076 | { | |
cbf95972 AM |
9077 | struct plt_entry *ent; |
9078 | ||
9079 | ent = find_plt_ent (&h->plt.plist, got2, | |
9080 | bfd_link_pic (info) ? addend : 0); | |
f75e0e33 AM |
9081 | if (ent == NULL |
9082 | || htab->plt == NULL) | |
9083 | { | |
9084 | /* We didn't make a PLT entry for this symbol. This | |
9085 | happens when statically linking PIC code, or when | |
9086 | using -Bsymbolic. */ | |
9087 | } | |
9088 | else | |
9089 | { | |
9090 | /* Relocation is to the entry for this symbol in the | |
9091 | procedure linkage table. */ | |
9092 | unresolved_reloc = FALSE; | |
9093 | if (htab->plt_type == PLT_NEW) | |
9094 | relocation = (htab->glink->output_section->vma | |
9095 | + htab->glink->output_offset | |
9096 | + ent->glink_offset); | |
9097 | else | |
9098 | relocation = (htab->plt->output_section->vma | |
9099 | + htab->plt->output_offset | |
9100 | + ent->plt.offset); | |
9101 | } | |
9102 | } | |
252b5132 | 9103 | |
f75e0e33 AM |
9104 | /* R_PPC_PLTREL24 is rather special. If non-zero, the |
9105 | addend specifies the GOT pointer offset within .got2. | |
9106 | Don't apply it to the relocation field. */ | |
9107 | addend = 0; | |
8da6118f | 9108 | break; |
252b5132 | 9109 | |
70bccea4 | 9110 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 9111 | case R_PPC_SDAREL16: |
252b5132 RH |
9112 | { |
9113 | const char *name; | |
bd6c6e2b | 9114 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; |
252b5132 | 9115 | |
bd6c6e2b AM |
9116 | if (sec == NULL |
9117 | || sec->output_section == NULL | |
9118 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9119 | { |
9120 | unresolved_reloc = TRUE; | |
9121 | break; | |
9122 | } | |
bd6c6e2b | 9123 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9124 | |
a0f49396 | 9125 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9126 | if (!(strcmp (name, ".sdata") == 0 |
9127 | || strcmp (name, ".sbss") == 0)) | |
252b5132 | 9128 | { |
25f53a85 | 9129 | info->callbacks->einfo |
8de848d8 | 9130 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9131 | "in the wrong output section (%s)\n"), |
d003868e | 9132 | input_bfd, |
55fd94b0 AM |
9133 | sym_name, |
9134 | howto->name, | |
9135 | name); | |
252b5132 | 9136 | } |
252b5132 RH |
9137 | } |
9138 | break; | |
9139 | ||
70bccea4 | 9140 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 9141 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
9142 | { |
9143 | const char *name; | |
bd6c6e2b | 9144 | struct elf_link_hash_entry *sda = htab->sdata[1].sym; |
252b5132 | 9145 | |
bd6c6e2b AM |
9146 | if (sec == NULL |
9147 | || sec->output_section == NULL | |
9148 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9149 | { |
9150 | unresolved_reloc = TRUE; | |
9151 | break; | |
9152 | } | |
bd6c6e2b | 9153 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9154 | |
a0f49396 | 9155 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9156 | if (!(strcmp (name, ".sdata2") == 0 |
9157 | || strcmp (name, ".sbss2") == 0)) | |
252b5132 | 9158 | { |
25f53a85 | 9159 | info->callbacks->einfo |
8de848d8 | 9160 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9161 | "in the wrong output section (%s)\n"), |
d003868e | 9162 | input_bfd, |
55fd94b0 AM |
9163 | sym_name, |
9164 | howto->name, | |
9165 | name); | |
252b5132 | 9166 | } |
252b5132 RH |
9167 | } |
9168 | break; | |
9169 | ||
b9c361e0 | 9170 | case R_PPC_VLE_LO16A: |
86c95733 AM |
9171 | relocation = relocation + addend; |
9172 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9173 | relocation, split16a_type); | |
c316a17c | 9174 | goto copy_reloc; |
b9c361e0 JL |
9175 | |
9176 | case R_PPC_VLE_LO16D: | |
86c95733 AM |
9177 | relocation = relocation + addend; |
9178 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9179 | relocation, split16d_type); | |
c316a17c | 9180 | goto copy_reloc; |
b9c361e0 JL |
9181 | |
9182 | case R_PPC_VLE_HI16A: | |
86c95733 AM |
9183 | relocation = (relocation + addend) >> 16; |
9184 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9185 | relocation, split16a_type); | |
c316a17c | 9186 | goto copy_reloc; |
b9c361e0 JL |
9187 | |
9188 | case R_PPC_VLE_HI16D: | |
86c95733 AM |
9189 | relocation = (relocation + addend) >> 16; |
9190 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9191 | relocation, split16d_type); | |
c316a17c | 9192 | goto copy_reloc; |
b9c361e0 JL |
9193 | |
9194 | case R_PPC_VLE_HA16A: | |
86c95733 AM |
9195 | relocation = (relocation + addend + 0x8000) >> 16; |
9196 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9197 | relocation, split16a_type); | |
c316a17c | 9198 | goto copy_reloc; |
b9c361e0 JL |
9199 | |
9200 | case R_PPC_VLE_HA16D: | |
86c95733 AM |
9201 | relocation = (relocation + addend + 0x8000) >> 16; |
9202 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9203 | relocation, split16d_type); | |
c316a17c | 9204 | goto copy_reloc; |
b9c361e0 | 9205 | |
70bccea4 | 9206 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 | 9207 | case R_PPC_EMB_SDA21: |
b9c361e0 | 9208 | case R_PPC_VLE_SDA21: |
7619e7c7 | 9209 | case R_PPC_EMB_RELSDA: |
b9c361e0 | 9210 | case R_PPC_VLE_SDA21_LO: |
252b5132 RH |
9211 | { |
9212 | const char *name; | |
9213 | int reg; | |
86c95733 | 9214 | unsigned int insn; |
bd6c6e2b | 9215 | struct elf_link_hash_entry *sda = NULL; |
252b5132 | 9216 | |
3b4f3a11 AM |
9217 | if (sec == NULL || sec->output_section == NULL) |
9218 | { | |
9219 | unresolved_reloc = TRUE; | |
9220 | break; | |
9221 | } | |
9222 | ||
a0f49396 | 9223 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9224 | if (strcmp (name, ".sdata") == 0 |
9225 | || strcmp (name, ".sbss") == 0) | |
252b5132 RH |
9226 | { |
9227 | reg = 13; | |
bd6c6e2b | 9228 | sda = htab->sdata[0].sym; |
252b5132 | 9229 | } |
93d1b056 AM |
9230 | else if (strcmp (name, ".sdata2") == 0 |
9231 | || strcmp (name, ".sbss2") == 0) | |
252b5132 RH |
9232 | { |
9233 | reg = 2; | |
bd6c6e2b | 9234 | sda = htab->sdata[1].sym; |
252b5132 | 9235 | } |
8da6118f KH |
9236 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
9237 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
9238 | { |
9239 | reg = 0; | |
9240 | } | |
252b5132 RH |
9241 | else |
9242 | { | |
25f53a85 | 9243 | info->callbacks->einfo |
8de848d8 | 9244 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9245 | "in the wrong output section (%s)\n"), |
d003868e | 9246 | input_bfd, |
55fd94b0 AM |
9247 | sym_name, |
9248 | howto->name, | |
9249 | name); | |
252b5132 RH |
9250 | |
9251 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 9252 | ret = FALSE; |
c316a17c | 9253 | goto copy_reloc; |
252b5132 RH |
9254 | } |
9255 | ||
bd6c6e2b AM |
9256 | if (sda != NULL) |
9257 | { | |
9258 | if (!is_static_defined (sda)) | |
9259 | { | |
9260 | unresolved_reloc = TRUE; | |
9261 | break; | |
9262 | } | |
9263 | addend -= SYM_VAL (sda); | |
9264 | } | |
9265 | ||
86c95733 | 9266 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
b9c361e0 JL |
9267 | if (reg == 0 |
9268 | && (r_type == R_PPC_VLE_SDA21 | |
9269 | || r_type == R_PPC_VLE_SDA21_LO)) | |
9270 | { | |
86c95733 AM |
9271 | relocation = relocation + addend; |
9272 | addend = 0; | |
9273 | ||
9274 | /* Force e_li insn, keeping RT from original insn. */ | |
9275 | insn &= 0x1f << 21; | |
9276 | insn |= 28u << 26; | |
9277 | ||
9278 | /* We have an li20 field, bits 17..20, 11..15, 21..31. */ | |
9279 | /* Top 4 bits of value to 17..20. */ | |
9280 | insn |= (relocation & 0xf0000) >> 5; | |
9281 | /* Next 5 bits of the value to 11..15. */ | |
9282 | insn |= (relocation & 0xf800) << 5; | |
9283 | /* And the final 11 bits of the value to bits 21 to 31. */ | |
9284 | insn |= relocation & 0x7ff; | |
9285 | ||
c3301df1 AM |
9286 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
9287 | ||
9288 | if (r_type == R_PPC_VLE_SDA21 | |
9289 | && ((relocation + 0x80000) & 0xffffffff) > 0x100000) | |
9290 | goto overflow; | |
c316a17c | 9291 | goto copy_reloc; |
b9c361e0 JL |
9292 | } |
9293 | else if (r_type == R_PPC_EMB_SDA21 | |
9294 | || r_type == R_PPC_VLE_SDA21 | |
9295 | || r_type == R_PPC_VLE_SDA21_LO) | |
91d6fa6a | 9296 | { |
86c95733 | 9297 | /* Fill in register field. */ |
252b5132 | 9298 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
252b5132 | 9299 | } |
86c95733 | 9300 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
9301 | } |
9302 | break; | |
9303 | ||
b9c361e0 JL |
9304 | case R_PPC_VLE_SDAREL_LO16A: |
9305 | case R_PPC_VLE_SDAREL_LO16D: | |
9306 | case R_PPC_VLE_SDAREL_HI16A: | |
9307 | case R_PPC_VLE_SDAREL_HI16D: | |
9308 | case R_PPC_VLE_SDAREL_HA16A: | |
9309 | case R_PPC_VLE_SDAREL_HA16D: | |
9310 | { | |
9311 | bfd_vma value; | |
9312 | const char *name; | |
9313 | //int reg; | |
9314 | struct elf_link_hash_entry *sda = NULL; | |
9315 | ||
9316 | if (sec == NULL || sec->output_section == NULL) | |
9317 | { | |
9318 | unresolved_reloc = TRUE; | |
9319 | break; | |
9320 | } | |
9321 | ||
a0f49396 | 9322 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9323 | if (strcmp (name, ".sdata") == 0 |
9324 | || strcmp (name, ".sbss") == 0) | |
b9c361e0 JL |
9325 | { |
9326 | //reg = 13; | |
9327 | sda = htab->sdata[0].sym; | |
9328 | } | |
93d1b056 AM |
9329 | else if (strcmp (name, ".sdata2") == 0 |
9330 | || strcmp (name, ".sbss2") == 0) | |
b9c361e0 JL |
9331 | { |
9332 | //reg = 2; | |
9333 | sda = htab->sdata[1].sym; | |
9334 | } | |
9335 | else | |
9336 | { | |
9337 | (*_bfd_error_handler) | |
9338 | (_("%B: the target (%s) of a %s relocation is " | |
9339 | "in the wrong output section (%s)"), | |
9340 | input_bfd, | |
9341 | sym_name, | |
9342 | howto->name, | |
9343 | name); | |
9344 | ||
9345 | bfd_set_error (bfd_error_bad_value); | |
9346 | ret = FALSE; | |
c316a17c | 9347 | goto copy_reloc; |
b9c361e0 JL |
9348 | } |
9349 | ||
9350 | if (sda != NULL) | |
9351 | { | |
9352 | if (!is_static_defined (sda)) | |
9353 | { | |
9354 | unresolved_reloc = TRUE; | |
9355 | break; | |
9356 | } | |
9357 | } | |
9358 | ||
86c95733 AM |
9359 | value = (sda->root.u.def.section->output_section->vma |
9360 | + sda->root.u.def.section->output_offset | |
9361 | + addend); | |
9362 | ||
9363 | if (r_type == R_PPC_VLE_SDAREL_LO16A) | |
9364 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9365 | value, split16a_type); | |
9366 | else if (r_type == R_PPC_VLE_SDAREL_LO16D) | |
9367 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9368 | value, split16d_type); | |
9369 | else if (r_type == R_PPC_VLE_SDAREL_HI16A) | |
b9c361e0 | 9370 | { |
86c95733 AM |
9371 | value = value >> 16; |
9372 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9373 | value, split16a_type); | |
b9c361e0 | 9374 | } |
86c95733 | 9375 | else if (r_type == R_PPC_VLE_SDAREL_HI16D) |
b9c361e0 | 9376 | { |
86c95733 AM |
9377 | value = value >> 16; |
9378 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9379 | value, split16d_type); | |
b9c361e0 | 9380 | } |
86c95733 | 9381 | else if (r_type == R_PPC_VLE_SDAREL_HA16A) |
b9c361e0 | 9382 | { |
86c95733 AM |
9383 | value = (value + 0x8000) >> 16; |
9384 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9385 | value, split16a_type); | |
b9c361e0 | 9386 | } |
86c95733 | 9387 | else if (r_type == R_PPC_VLE_SDAREL_HA16D) |
b9c361e0 | 9388 | { |
86c95733 AM |
9389 | value = (value + 0x8000) >> 16; |
9390 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9391 | value, split16d_type); | |
b9c361e0 JL |
9392 | } |
9393 | } | |
c316a17c | 9394 | goto copy_reloc; |
b9c361e0 | 9395 | |
70bccea4 | 9396 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
9397 | case R_PPC_SECTOFF: |
9398 | case R_PPC_SECTOFF_LO: | |
9399 | case R_PPC_SECTOFF_HI: | |
9400 | case R_PPC_SECTOFF_HA: | |
3b4f3a11 AM |
9401 | if (sec == NULL || sec->output_section == NULL) |
9402 | { | |
9403 | unresolved_reloc = TRUE; | |
9404 | break; | |
9405 | } | |
252b5132 | 9406 | addend -= sec->output_section->vma; |
252b5132 RH |
9407 | break; |
9408 | ||
70bccea4 | 9409 | /* Negative relocations. */ |
7619e7c7 AM |
9410 | case R_PPC_EMB_NADDR32: |
9411 | case R_PPC_EMB_NADDR16: | |
9412 | case R_PPC_EMB_NADDR16_LO: | |
9413 | case R_PPC_EMB_NADDR16_HI: | |
9414 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 9415 | addend -= 2 * relocation; |
252b5132 RH |
9416 | break; |
9417 | ||
7619e7c7 AM |
9418 | case R_PPC_COPY: |
9419 | case R_PPC_GLOB_DAT: | |
9420 | case R_PPC_JMP_SLOT: | |
9421 | case R_PPC_RELATIVE: | |
e054468f | 9422 | case R_PPC_IRELATIVE: |
7619e7c7 AM |
9423 | case R_PPC_PLT32: |
9424 | case R_PPC_PLTREL32: | |
9425 | case R_PPC_PLT16_LO: | |
9426 | case R_PPC_PLT16_HI: | |
9427 | case R_PPC_PLT16_HA: | |
9428 | case R_PPC_ADDR30: | |
9429 | case R_PPC_EMB_RELSEC16: | |
9430 | case R_PPC_EMB_RELST_LO: | |
9431 | case R_PPC_EMB_RELST_HI: | |
9432 | case R_PPC_EMB_RELST_HA: | |
9433 | case R_PPC_EMB_BIT_FLD: | |
25f53a85 | 9434 | info->callbacks->einfo |
8de848d8 | 9435 | (_("%P: %B: relocation %s is not yet supported for symbol %s\n"), |
d003868e | 9436 | input_bfd, |
7619e7c7 AM |
9437 | howto->name, |
9438 | sym_name); | |
252b5132 RH |
9439 | |
9440 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 9441 | ret = FALSE; |
c316a17c | 9442 | goto copy_reloc; |
7619e7c7 | 9443 | } |
252b5132 | 9444 | |
7619e7c7 AM |
9445 | /* Do any further special processing. */ |
9446 | switch (r_type) | |
9447 | { | |
9448 | default: | |
9449 | break; | |
9450 | ||
9451 | case R_PPC_ADDR16_HA: | |
d7128ce4 | 9452 | case R_PPC_REL16_HA: |
a680de9a | 9453 | case R_PPC_REL16DX_HA: |
7619e7c7 AM |
9454 | case R_PPC_SECTOFF_HA: |
9455 | case R_PPC_TPREL16_HA: | |
9456 | case R_PPC_DTPREL16_HA: | |
7619e7c7 AM |
9457 | case R_PPC_EMB_NADDR16_HA: |
9458 | case R_PPC_EMB_RELST_HA: | |
9459 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 9460 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
9461 | 'sec' would be NULL, and we should leave the symbol |
9462 | alone (it will be set to zero elsewhere in the link). */ | |
5c5f6e17 AM |
9463 | if (sec == NULL) |
9464 | break; | |
9465 | /* Fall thru */ | |
9466 | ||
9467 | case R_PPC_PLT16_HA: | |
9468 | case R_PPC_GOT16_HA: | |
9469 | case R_PPC_GOT_TLSGD16_HA: | |
9470 | case R_PPC_GOT_TLSLD16_HA: | |
9471 | case R_PPC_GOT_TPREL16_HA: | |
9472 | case R_PPC_GOT_DTPREL16_HA: | |
9473 | /* Add 0x10000 if sign bit in 0:15 is set. | |
9474 | Bits 0:15 are not used. */ | |
9475 | addend += 0x8000; | |
7619e7c7 | 9476 | break; |
1fe532cf AM |
9477 | |
9478 | case R_PPC_ADDR16: | |
9479 | case R_PPC_ADDR16_LO: | |
9480 | case R_PPC_GOT16: | |
9481 | case R_PPC_GOT16_LO: | |
9482 | case R_PPC_SDAREL16: | |
9483 | case R_PPC_SECTOFF: | |
9484 | case R_PPC_SECTOFF_LO: | |
9485 | case R_PPC_DTPREL16: | |
9486 | case R_PPC_DTPREL16_LO: | |
9487 | case R_PPC_TPREL16: | |
9488 | case R_PPC_TPREL16_LO: | |
9489 | case R_PPC_GOT_TLSGD16: | |
9490 | case R_PPC_GOT_TLSGD16_LO: | |
9491 | case R_PPC_GOT_TLSLD16: | |
9492 | case R_PPC_GOT_TLSLD16_LO: | |
9493 | case R_PPC_GOT_DTPREL16: | |
9494 | case R_PPC_GOT_DTPREL16_LO: | |
9495 | case R_PPC_GOT_TPREL16: | |
9496 | case R_PPC_GOT_TPREL16_LO: | |
9497 | { | |
9498 | /* The 32-bit ABI lacks proper relocations to deal with | |
9499 | certain 64-bit instructions. Prevent damage to bits | |
9500 | that make up part of the insn opcode. */ | |
9501 | unsigned int insn, mask, lobit; | |
9502 | ||
c316a17c AM |
9503 | insn = bfd_get_32 (output_bfd, |
9504 | contents + rel->r_offset - d_offset); | |
1fe532cf AM |
9505 | mask = 0; |
9506 | if (is_insn_ds_form (insn)) | |
9507 | mask = 3; | |
9508 | else if (is_insn_dq_form (insn)) | |
9509 | mask = 15; | |
9510 | else | |
9511 | break; | |
a680de9a PB |
9512 | relocation += addend; |
9513 | addend = insn & mask; | |
9514 | lobit = mask & relocation; | |
1fe532cf AM |
9515 | if (lobit != 0) |
9516 | { | |
a680de9a | 9517 | relocation ^= lobit; |
1fe532cf AM |
9518 | info->callbacks->einfo |
9519 | (_("%P: %H: error: %s against `%s' not a multiple of %u\n"), | |
9520 | input_bfd, input_section, rel->r_offset, | |
9521 | howto->name, sym_name, mask + 1); | |
9522 | bfd_set_error (bfd_error_bad_value); | |
9523 | ret = FALSE; | |
9524 | } | |
1fe532cf AM |
9525 | } |
9526 | break; | |
252b5132 RH |
9527 | } |
9528 | ||
252b5132 | 9529 | #ifdef DEBUG |
55fd94b0 AM |
9530 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
9531 | "offset = %ld, addend = %ld\n", | |
252b5132 | 9532 | howto->name, |
8da6118f | 9533 | (int) r_type, |
252b5132 RH |
9534 | sym_name, |
9535 | r_symndx, | |
7619e7c7 | 9536 | (long) rel->r_offset, |
8da6118f | 9537 | (long) addend); |
252b5132 RH |
9538 | #endif |
9539 | ||
7619e7c7 AM |
9540 | if (unresolved_reloc |
9541 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
9542 | && h->def_dynamic) |
9543 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
9544 | rel->r_offset) != (bfd_vma) -1) | |
7619e7c7 | 9545 | { |
25f53a85 | 9546 | info->callbacks->einfo |
8de848d8 | 9547 | (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"), |
25f53a85 | 9548 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 9549 | howto->name, |
7619e7c7 AM |
9550 | sym_name); |
9551 | ret = FALSE; | |
9552 | } | |
9553 | ||
86c95733 AM |
9554 | /* 16-bit fields in insns mostly have signed values, but a |
9555 | few insns have 16-bit unsigned values. Really, we should | |
9556 | have different reloc types. */ | |
9557 | if (howto->complain_on_overflow != complain_overflow_dont | |
9558 | && howto->dst_mask == 0xffff | |
9559 | && (input_section->flags & SEC_CODE) != 0) | |
9560 | { | |
9561 | enum complain_overflow complain = complain_overflow_signed; | |
9562 | ||
9563 | if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0) | |
9564 | { | |
9565 | unsigned int insn; | |
9566 | ||
9567 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
a47622ac AM |
9568 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
9569 | complain = complain_overflow_bitfield; | |
9570 | else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
9571 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
9572 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
86c95733 AM |
9573 | complain = complain_overflow_unsigned; |
9574 | } | |
9575 | if (howto->complain_on_overflow != complain) | |
9576 | { | |
9577 | alt_howto = *howto; | |
9578 | alt_howto.complain_on_overflow = complain; | |
9579 | howto = &alt_howto; | |
9580 | } | |
9581 | } | |
9582 | ||
a680de9a PB |
9583 | if (r_type == R_PPC_REL16DX_HA) |
9584 | { | |
9585 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
9586 | if (rel->r_offset + 4 > input_section->size) | |
9587 | r = bfd_reloc_outofrange; | |
9588 | else | |
9589 | { | |
9590 | unsigned int insn; | |
9591 | ||
9592 | relocation += addend; | |
9593 | relocation -= (rel->r_offset | |
9594 | + input_section->output_offset | |
9595 | + input_section->output_section->vma); | |
9596 | relocation >>= 16; | |
9597 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
9598 | insn &= ~0x1fffc1; | |
9599 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
9600 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
9601 | r = bfd_reloc_ok; | |
9602 | } | |
9603 | } | |
9604 | else | |
9605 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
9606 | rel->r_offset, relocation, addend); | |
252b5132 | 9607 | |
7619e7c7 | 9608 | if (r != bfd_reloc_ok) |
252b5132 | 9609 | { |
7619e7c7 | 9610 | if (r == bfd_reloc_overflow) |
252b5132 | 9611 | { |
c3301df1 | 9612 | overflow: |
8131c122 AM |
9613 | /* On code like "if (foo) foo();" don't report overflow |
9614 | on a branch to zero when foo is undefined. */ | |
9615 | if (!warned | |
9616 | && !(h != NULL | |
9617 | && (h->root.type == bfd_link_hash_undefweak | |
9618 | || h->root.type == bfd_link_hash_undefined) | |
9619 | && is_branch_reloc (r_type))) | |
1a72702b AM |
9620 | info->callbacks->reloc_overflow |
9621 | (info, (h ? &h->root : NULL), sym_name, howto->name, | |
9622 | rel->r_addend, input_bfd, input_section, rel->r_offset); | |
dc1bc0c9 RH |
9623 | } |
9624 | else | |
9625 | { | |
25f53a85 | 9626 | info->callbacks->einfo |
8de848d8 | 9627 | (_("%P: %H: %s reloc against `%s': error %d\n"), |
25f53a85 AM |
9628 | input_bfd, input_section, rel->r_offset, |
9629 | howto->name, sym_name, (int) r); | |
7619e7c7 | 9630 | ret = FALSE; |
252b5132 RH |
9631 | } |
9632 | } | |
c316a17c AM |
9633 | copy_reloc: |
9634 | if (wrel != rel) | |
9635 | *wrel = *rel; | |
9636 | } | |
9637 | ||
9638 | if (wrel != rel) | |
9639 | { | |
9640 | Elf_Internal_Shdr *rel_hdr; | |
9641 | size_t deleted = rel - wrel; | |
9642 | ||
9643 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
9644 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9645 | if (rel_hdr->sh_size == 0) | |
9646 | { | |
9647 | /* It is too late to remove an empty reloc section. Leave | |
9648 | one NONE reloc. | |
9649 | ??? What is wrong with an empty section??? */ | |
9650 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
9651 | deleted -= 1; | |
9652 | wrel++; | |
9653 | } | |
9654 | relend = wrel; | |
9655 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
9656 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9657 | input_section->reloc_count -= deleted; | |
252b5132 RH |
9658 | } |
9659 | ||
252b5132 RH |
9660 | #ifdef DEBUG |
9661 | fprintf (stderr, "\n"); | |
9662 | #endif | |
9663 | ||
53291d1f AM |
9664 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
9665 | && input_section->size != input_section->rawsize | |
9666 | && (strcmp (input_section->output_section->name, ".init") == 0 | |
9667 | || strcmp (input_section->output_section->name, ".fini") == 0)) | |
9668 | { | |
9669 | /* Branch around the trampolines. */ | |
9670 | unsigned int insn = B + input_section->size - input_section->rawsize; | |
9671 | bfd_put_32 (input_bfd, insn, contents + input_section->rawsize); | |
9672 | } | |
9673 | ||
5446cbdf | 9674 | if (htab->params->ppc476_workaround |
795bc6b3 | 9675 | && input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
0e1862bb | 9676 | && (!bfd_link_relocatable (info) |
795bc6b3 AM |
9677 | || (input_section->output_section->alignment_power |
9678 | >= htab->params->pagesize_p2))) | |
5446cbdf | 9679 | { |
5446cbdf | 9680 | bfd_vma start_addr, end_addr, addr; |
795bc6b3 | 9681 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf | 9682 | |
5446cbdf | 9683 | if (relax_info->workaround_size != 0) |
40fd06d1 AM |
9684 | { |
9685 | bfd_byte *p; | |
9686 | unsigned int n; | |
9687 | bfd_byte fill[4]; | |
9688 | ||
9689 | bfd_put_32 (input_bfd, BA, fill); | |
9690 | p = contents + input_section->size - relax_info->workaround_size; | |
9691 | n = relax_info->workaround_size >> 2; | |
9692 | while (n--) | |
9693 | { | |
9694 | memcpy (p, fill, 4); | |
9695 | p += 4; | |
9696 | } | |
9697 | } | |
5446cbdf AM |
9698 | |
9699 | /* The idea is: Replace the last instruction on a page with a | |
9700 | branch to a patch area. Put the insn there followed by a | |
9701 | branch back to the next page. Complicated a little by | |
9702 | needing to handle moved conditional branches, and by not | |
9703 | wanting to touch data-in-text. */ | |
9704 | ||
9705 | start_addr = (input_section->output_section->vma | |
9706 | + input_section->output_offset); | |
9707 | end_addr = (start_addr + input_section->size | |
9708 | - relax_info->workaround_size); | |
9709 | for (addr = ((start_addr & -pagesize) + pagesize - 4); | |
9710 | addr < end_addr; | |
9711 | addr += pagesize) | |
9712 | { | |
9713 | bfd_vma offset = addr - start_addr; | |
9714 | Elf_Internal_Rela *lo, *hi; | |
9715 | bfd_boolean is_data; | |
9716 | bfd_vma patch_off, patch_addr; | |
9717 | unsigned int insn; | |
9718 | ||
9719 | /* Do we have a data reloc at this offset? If so, leave | |
9720 | the word alone. */ | |
9721 | is_data = FALSE; | |
9722 | lo = relocs; | |
668e22e5 AM |
9723 | hi = relend; |
9724 | rel = NULL; | |
5446cbdf AM |
9725 | while (lo < hi) |
9726 | { | |
9727 | rel = lo + (hi - lo) / 2; | |
9728 | if (rel->r_offset < offset) | |
9729 | lo = rel + 1; | |
668e22e5 | 9730 | else if (rel->r_offset > offset + 3) |
5446cbdf AM |
9731 | hi = rel; |
9732 | else | |
9733 | { | |
9734 | switch (ELF32_R_TYPE (rel->r_info)) | |
9735 | { | |
9736 | case R_PPC_ADDR32: | |
9737 | case R_PPC_UADDR32: | |
9738 | case R_PPC_REL32: | |
9739 | case R_PPC_ADDR30: | |
9740 | is_data = TRUE; | |
9741 | break; | |
9742 | default: | |
9743 | break; | |
9744 | } | |
9745 | break; | |
9746 | } | |
9747 | } | |
9748 | if (is_data) | |
9749 | continue; | |
9750 | ||
b4ab4364 AM |
9751 | /* Some instructions can be left alone too. Unconditional |
9752 | branches, except for bcctr with BO=0x14 (bctr, bctrl), | |
9753 | avoid the icache failure. | |
9754 | ||
9755 | The problem occurs due to prefetch across a page boundary | |
9756 | where stale instructions can be fetched from the next | |
9757 | page, and the mechanism for flushing these bad | |
9758 | instructions fails under certain circumstances. The | |
9759 | unconditional branches: | |
9760 | 1) Branch: b, bl, ba, bla, | |
9761 | 2) Branch Conditional: bc, bca, bcl, bcla, | |
9762 | 3) Branch Conditional to Link Register: bclr, bclrl, | |
9763 | where (2) and (3) have BO=0x14 making them unconditional, | |
9764 | prevent the bad prefetch because the prefetch itself is | |
9765 | affected by these instructions. This happens even if the | |
9766 | instruction is not executed. | |
9767 | ||
9768 | A bctr example: | |
9769 | . | |
9770 | . lis 9,new_page@ha | |
9771 | . addi 9,9,new_page@l | |
9772 | . mtctr 9 | |
9773 | . bctr | |
9774 | . nop | |
9775 | . nop | |
9776 | . new_page: | |
9777 | . | |
9778 | The bctr is not predicted taken due to ctr not being | |
9779 | ready, so prefetch continues on past the bctr into the | |
9780 | new page which might have stale instructions. If they | |
9781 | fail to be flushed, then they will be executed after the | |
9782 | bctr executes. Either of the following modifications | |
9783 | prevent the bad prefetch from happening in the first | |
9784 | place: | |
9785 | . | |
1b786873 L |
9786 | . lis 9,new_page@ha lis 9,new_page@ha |
9787 | . addi 9,9,new_page@l addi 9,9,new_page@l | |
9788 | . mtctr 9 mtctr 9 | |
9789 | . bctr bctr | |
b4ab4364 | 9790 | . nop b somewhere_else |
1b786873 L |
9791 | . b somewhere_else nop |
9792 | . new_page: new_page: | |
b4ab4364 | 9793 | . */ |
5446cbdf | 9794 | insn = bfd_get_32 (input_bfd, contents + offset); |
b4ab4364 AM |
9795 | if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */ |
9796 | || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/ | |
9797 | && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */ | |
5446cbdf | 9798 | || ((insn & (0x3f << 26)) == (19u << 26) |
b4ab4364 AM |
9799 | && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */ |
9800 | && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */ | |
5446cbdf AM |
9801 | continue; |
9802 | ||
9803 | patch_addr = (start_addr + input_section->size | |
9804 | - relax_info->workaround_size); | |
9805 | patch_addr = (patch_addr + 15) & -16; | |
9806 | patch_off = patch_addr - start_addr; | |
9807 | bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset); | |
668e22e5 AM |
9808 | |
9809 | if (rel != NULL | |
9810 | && rel->r_offset >= offset | |
9811 | && rel->r_offset < offset + 4) | |
9812 | { | |
f8b44781 AM |
9813 | asection *sreloc; |
9814 | ||
668e22e5 AM |
9815 | /* If the insn we are patching had a reloc, adjust the |
9816 | reloc r_offset so that the reloc applies to the moved | |
9817 | location. This matters for -r and --emit-relocs. */ | |
9818 | if (rel + 1 != relend) | |
9819 | { | |
9820 | Elf_Internal_Rela tmp = *rel; | |
9821 | ||
9822 | /* Keep the relocs sorted by r_offset. */ | |
9823 | memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel)); | |
9824 | relend[-1] = tmp; | |
9825 | } | |
9826 | relend[-1].r_offset += patch_off - offset; | |
f8b44781 AM |
9827 | |
9828 | /* Adjust REL16 addends too. */ | |
9829 | switch (ELF32_R_TYPE (relend[-1].r_info)) | |
9830 | { | |
9831 | case R_PPC_REL16: | |
9832 | case R_PPC_REL16_LO: | |
9833 | case R_PPC_REL16_HI: | |
9834 | case R_PPC_REL16_HA: | |
9835 | relend[-1].r_addend += patch_off - offset; | |
9836 | break; | |
9837 | default: | |
9838 | break; | |
9839 | } | |
9840 | ||
9841 | /* If we are building a PIE or shared library with | |
9842 | non-PIC objects, perhaps we had a dynamic reloc too? | |
9843 | If so, the dynamic reloc must move with the insn. */ | |
9844 | sreloc = elf_section_data (input_section)->sreloc; | |
9845 | if (sreloc != NULL) | |
9846 | { | |
1d5c94cb | 9847 | Elf32_External_Rela *slo, *shi, *srelend; |
f8b44781 AM |
9848 | bfd_vma soffset; |
9849 | ||
1d5c94cb AM |
9850 | slo = (Elf32_External_Rela *) sreloc->contents; |
9851 | shi = srelend = slo + sreloc->reloc_count; | |
f8b44781 AM |
9852 | soffset = (offset + input_section->output_section->vma |
9853 | + input_section->output_offset); | |
9854 | while (slo < shi) | |
9855 | { | |
1d5c94cb AM |
9856 | Elf32_External_Rela *srel = slo + (shi - slo) / 2; |
9857 | bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel, | |
9858 | &outrel); | |
f8b44781 AM |
9859 | if (outrel.r_offset < soffset) |
9860 | slo = srel + 1; | |
9861 | else if (outrel.r_offset > soffset + 3) | |
9862 | shi = srel; | |
9863 | else | |
9864 | { | |
1d5c94cb | 9865 | if (srel + 1 != srelend) |
f8b44781 | 9866 | { |
1d5c94cb AM |
9867 | memmove (srel, srel + 1, |
9868 | (srelend - (srel + 1)) * sizeof (*srel)); | |
9869 | srel = srelend - 1; | |
f8b44781 AM |
9870 | } |
9871 | outrel.r_offset += patch_off - offset; | |
1d5c94cb AM |
9872 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
9873 | (bfd_byte *) srel); | |
f8b44781 AM |
9874 | break; |
9875 | } | |
9876 | } | |
9877 | } | |
668e22e5 AM |
9878 | } |
9879 | else | |
9880 | rel = NULL; | |
9881 | ||
5446cbdf AM |
9882 | if ((insn & (0x3f << 26)) == (16u << 26) /* bc */ |
9883 | && (insn & 2) == 0 /* relative */) | |
9884 | { | |
9885 | bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000; | |
9886 | ||
9887 | delta += offset - patch_off; | |
0e1862bb | 9888 | if (bfd_link_relocatable (info) && rel != NULL) |
668e22e5 | 9889 | delta = 0; |
0e1862bb | 9890 | if (!bfd_link_relocatable (info) && rel != NULL) |
668e22e5 AM |
9891 | { |
9892 | enum elf_ppc_reloc_type r_type; | |
9893 | ||
9894 | r_type = ELF32_R_TYPE (relend[-1].r_info); | |
9895 | if (r_type == R_PPC_REL14_BRTAKEN) | |
9896 | insn |= BRANCH_PREDICT_BIT; | |
9897 | else if (r_type == R_PPC_REL14_BRNTAKEN) | |
9898 | insn &= ~BRANCH_PREDICT_BIT; | |
9899 | else | |
9900 | BFD_ASSERT (r_type == R_PPC_REL14); | |
9901 | ||
9902 | if ((r_type == R_PPC_REL14_BRTAKEN | |
9903 | || r_type == R_PPC_REL14_BRNTAKEN) | |
9904 | && delta + 0x8000 < 0x10000 | |
9905 | && (bfd_signed_vma) delta < 0) | |
9906 | insn ^= BRANCH_PREDICT_BIT; | |
9907 | } | |
5446cbdf AM |
9908 | if (delta + 0x8000 < 0x10000) |
9909 | { | |
9910 | bfd_put_32 (input_bfd, | |
9911 | (insn & ~0xfffc) | (delta & 0xfffc), | |
9912 | contents + patch_off); | |
9913 | patch_off += 4; | |
9914 | bfd_put_32 (input_bfd, | |
9915 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9916 | contents + patch_off); | |
9917 | patch_off += 4; | |
9918 | } | |
9919 | else | |
9920 | { | |
668e22e5 AM |
9921 | if (rel != NULL) |
9922 | { | |
9923 | unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info); | |
9924 | ||
9925 | relend[-1].r_offset += 8; | |
9926 | relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24); | |
9927 | } | |
5446cbdf AM |
9928 | bfd_put_32 (input_bfd, |
9929 | (insn & ~0xfffc) | 8, | |
9930 | contents + patch_off); | |
9931 | patch_off += 4; | |
9932 | bfd_put_32 (input_bfd, | |
9933 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9934 | contents + patch_off); | |
9935 | patch_off += 4; | |
9936 | bfd_put_32 (input_bfd, | |
9937 | B | ((delta - 8) & 0x3fffffc), | |
9938 | contents + patch_off); | |
9939 | patch_off += 4; | |
9940 | } | |
9941 | } | |
9942 | else | |
9943 | { | |
9944 | bfd_put_32 (input_bfd, insn, contents + patch_off); | |
9945 | patch_off += 4; | |
9946 | bfd_put_32 (input_bfd, | |
9947 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9948 | contents + patch_off); | |
9949 | patch_off += 4; | |
9950 | } | |
9951 | BFD_ASSERT (patch_off <= input_section->size); | |
9952 | relax_info->workaround_size = input_section->size - patch_off; | |
9953 | } | |
9954 | } | |
9955 | ||
252b5132 RH |
9956 | return ret; |
9957 | } | |
252b5132 | 9958 | \f |
25dbc73a AM |
9959 | /* Finish up dynamic symbol handling. We set the contents of various |
9960 | dynamic sections here. */ | |
c5fccbec | 9961 | |
b34976b6 | 9962 | static bfd_boolean |
25dbc73a AM |
9963 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
9964 | struct bfd_link_info *info, | |
9965 | struct elf_link_hash_entry *h, | |
9966 | Elf_Internal_Sym *sym) | |
e1a9cb8e | 9967 | { |
25dbc73a | 9968 | struct ppc_elf_link_hash_table *htab; |
a6aa5195 AM |
9969 | struct plt_entry *ent; |
9970 | bfd_boolean doneone; | |
e1a9cb8e | 9971 | |
25dbc73a AM |
9972 | #ifdef DEBUG |
9973 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
9974 | h->root.root.string); | |
9975 | #endif | |
e1a9cb8e | 9976 | |
25dbc73a AM |
9977 | htab = ppc_elf_hash_table (info); |
9978 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
e1a9cb8e | 9979 | |
a6aa5195 AM |
9980 | doneone = FALSE; |
9981 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
9982 | if (ent->plt.offset != (bfd_vma) -1) | |
9983 | { | |
9984 | if (!doneone) | |
9985 | { | |
9986 | Elf_Internal_Rela rela; | |
9987 | bfd_byte *loc; | |
9988 | bfd_vma reloc_index; | |
e1a9cb8e | 9989 | |
e054468f | 9990 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
9991 | || !htab->elf.dynamic_sections_created |
9992 | || h->dynindx == -1) | |
9d8504b1 PB |
9993 | reloc_index = ent->plt.offset / 4; |
9994 | else | |
9995 | { | |
9996 | reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) | |
9997 | / htab->plt_slot_size); | |
9998 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES | |
4a3dc543 | 9999 | && htab->plt_type == PLT_OLD) |
9d8504b1 PB |
10000 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; |
10001 | } | |
10002 | ||
a6aa5195 AM |
10003 | /* This symbol has an entry in the procedure linkage table. |
10004 | Set it up. */ | |
e054468f | 10005 | if (htab->plt_type == PLT_VXWORKS |
25f23106 AM |
10006 | && htab->elf.dynamic_sections_created |
10007 | && h->dynindx != -1) | |
a6aa5195 | 10008 | { |
9d8504b1 PB |
10009 | bfd_vma got_offset; |
10010 | const bfd_vma *plt_entry; | |
5b914448 | 10011 | |
9d8504b1 PB |
10012 | /* The first three entries in .got.plt are reserved. */ |
10013 | got_offset = (reloc_index + 3) * 4; | |
10014 | ||
10015 | /* Use the right PLT. */ | |
0e1862bb | 10016 | plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry |
9d8504b1 PB |
10017 | : ppc_elf_vxworks_plt_entry; |
10018 | ||
10019 | /* Fill in the .plt on VxWorks. */ | |
0e1862bb | 10020 | if (bfd_link_pic (info)) |
9d8504b1 | 10021 | { |
9d8504b1 | 10022 | bfd_put_32 (output_bfd, |
e87d4038 | 10023 | plt_entry[0] | PPC_HA (got_offset), |
9d8504b1 PB |
10024 | htab->plt->contents + ent->plt.offset + 0); |
10025 | bfd_put_32 (output_bfd, | |
e87d4038 | 10026 | plt_entry[1] | PPC_LO (got_offset), |
9d8504b1 PB |
10027 | htab->plt->contents + ent->plt.offset + 4); |
10028 | } | |
10029 | else | |
10030 | { | |
e87d4038 | 10031 | bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); |
9d8504b1 PB |
10032 | |
10033 | bfd_put_32 (output_bfd, | |
e87d4038 | 10034 | plt_entry[0] | PPC_HA (got_loc), |
9d8504b1 PB |
10035 | htab->plt->contents + ent->plt.offset + 0); |
10036 | bfd_put_32 (output_bfd, | |
e87d4038 | 10037 | plt_entry[1] | PPC_LO (got_loc), |
9d8504b1 PB |
10038 | htab->plt->contents + ent->plt.offset + 4); |
10039 | } | |
10040 | ||
10041 | bfd_put_32 (output_bfd, plt_entry[2], | |
10042 | htab->plt->contents + ent->plt.offset + 8); | |
10043 | bfd_put_32 (output_bfd, plt_entry[3], | |
10044 | htab->plt->contents + ent->plt.offset + 12); | |
10045 | ||
10046 | /* This instruction is an immediate load. The value loaded is | |
10047 | the byte offset of the R_PPC_JMP_SLOT relocation from the | |
10048 | start of the .rela.plt section. The value is stored in the | |
10049 | low-order 16 bits of the load instruction. */ | |
10050 | /* NOTE: It appears that this is now an index rather than a | |
10051 | prescaled offset. */ | |
5b914448 | 10052 | bfd_put_32 (output_bfd, |
9d8504b1 PB |
10053 | plt_entry[4] | reloc_index, |
10054 | htab->plt->contents + ent->plt.offset + 16); | |
10055 | /* This instruction is a PC-relative branch whose target is | |
10056 | the start of the PLT section. The address of this branch | |
10057 | instruction is 20 bytes beyond the start of this PLT entry. | |
10058 | The address is encoded in bits 6-29, inclusive. The value | |
10059 | stored is right-shifted by two bits, permitting a 26-bit | |
10060 | offset. */ | |
5b914448 AM |
10061 | bfd_put_32 (output_bfd, |
10062 | (plt_entry[5] | |
9d8504b1 PB |
10063 | | (-(ent->plt.offset + 20) & 0x03fffffc)), |
10064 | htab->plt->contents + ent->plt.offset + 20); | |
10065 | bfd_put_32 (output_bfd, plt_entry[6], | |
10066 | htab->plt->contents + ent->plt.offset + 24); | |
10067 | bfd_put_32 (output_bfd, plt_entry[7], | |
10068 | htab->plt->contents + ent->plt.offset + 28); | |
10069 | ||
10070 | /* Fill in the GOT entry corresponding to this PLT slot with | |
a8685210 | 10071 | the address immediately after the "bctr" instruction |
9d8504b1 PB |
10072 | in this PLT entry. */ |
10073 | bfd_put_32 (output_bfd, (htab->plt->output_section->vma | |
10074 | + htab->plt->output_offset | |
10075 | + ent->plt.offset + 16), | |
10076 | htab->sgotplt->contents + got_offset); | |
10077 | ||
0e1862bb | 10078 | if (!bfd_link_pic (info)) |
9d8504b1 PB |
10079 | { |
10080 | /* Fill in a couple of entries in .rela.plt.unloaded. */ | |
10081 | loc = htab->srelplt2->contents | |
10082 | + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index | |
10083 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) | |
10084 | * sizeof (Elf32_External_Rela)); | |
10085 | ||
10086 | /* Provide the @ha relocation for the first instruction. */ | |
10087 | rela.r_offset = (htab->plt->output_section->vma | |
10088 | + htab->plt->output_offset | |
10089 | + ent->plt.offset + 2); | |
636ce3f5 | 10090 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10091 | R_PPC_ADDR16_HA); |
10092 | rela.r_addend = got_offset; | |
10093 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10094 | loc += sizeof (Elf32_External_Rela); | |
10095 | ||
10096 | /* Provide the @l relocation for the second instruction. */ | |
10097 | rela.r_offset = (htab->plt->output_section->vma | |
10098 | + htab->plt->output_offset | |
10099 | + ent->plt.offset + 6); | |
636ce3f5 | 10100 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10101 | R_PPC_ADDR16_LO); |
10102 | rela.r_addend = got_offset; | |
10103 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10104 | loc += sizeof (Elf32_External_Rela); | |
10105 | ||
10106 | /* Provide a relocation for the GOT entry corresponding to this | |
10107 | PLT slot. Point it at the middle of the .plt entry. */ | |
10108 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10109 | + htab->sgotplt->output_offset | |
10110 | + got_offset); | |
7325306f | 10111 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, |
9d8504b1 PB |
10112 | R_PPC_ADDR32); |
10113 | rela.r_addend = ent->plt.offset + 16; | |
10114 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10115 | } | |
10116 | ||
10117 | /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. | |
10118 | In particular, the offset for the relocation is not the | |
10119 | address of the PLT entry for this function, as specified | |
10120 | by the ABI. Instead, the offset is set to the address of | |
10121 | the GOT slot for this function. See EABI 4.4.4.1. */ | |
10122 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10123 | + htab->sgotplt->output_offset | |
10124 | + got_offset); | |
10125 | ||
a6aa5195 AM |
10126 | } |
10127 | else | |
10128 | { | |
e054468f | 10129 | asection *splt = htab->plt; |
25f23106 AM |
10130 | if (!htab->elf.dynamic_sections_created |
10131 | || h->dynindx == -1) | |
e054468f AM |
10132 | splt = htab->iplt; |
10133 | ||
10134 | rela.r_offset = (splt->output_section->vma | |
10135 | + splt->output_offset | |
9d8504b1 | 10136 | + ent->plt.offset); |
e054468f | 10137 | if (htab->plt_type == PLT_OLD |
25f23106 AM |
10138 | || !htab->elf.dynamic_sections_created |
10139 | || h->dynindx == -1) | |
9d8504b1 PB |
10140 | { |
10141 | /* We don't need to fill in the .plt. The ppc dynamic | |
10142 | linker will fill it in. */ | |
10143 | } | |
10144 | else | |
10145 | { | |
10146 | bfd_vma val = (htab->glink_pltresolve + ent->plt.offset | |
10147 | + htab->glink->output_section->vma | |
10148 | + htab->glink->output_offset); | |
10149 | bfd_put_32 (output_bfd, val, | |
e054468f | 10150 | splt->contents + ent->plt.offset); |
9d8504b1 | 10151 | } |
a6aa5195 | 10152 | } |
e1a9cb8e | 10153 | |
a6aa5195 | 10154 | /* Fill in the entry in the .rela.plt section. */ |
a6aa5195 | 10155 | rela.r_addend = 0; |
e054468f AM |
10156 | if (!htab->elf.dynamic_sections_created |
10157 | || h->dynindx == -1) | |
10158 | { | |
10159 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
10160 | && h->def_regular | |
10161 | && (h->root.type == bfd_link_hash_defined | |
10162 | || h->root.type == bfd_link_hash_defweak)); | |
10163 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
10164 | rela.r_addend = SYM_VAL (h); | |
10165 | } | |
10166 | else | |
10167 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
e1a9cb8e | 10168 | |
25f23106 AM |
10169 | if (!htab->elf.dynamic_sections_created |
10170 | || h->dynindx == -1) | |
10171 | loc = (htab->reliplt->contents | |
10172 | + (htab->reliplt->reloc_count++ | |
10173 | * sizeof (Elf32_External_Rela))); | |
e054468f | 10174 | else |
25f23106 AM |
10175 | loc = (htab->relplt->contents |
10176 | + reloc_index * sizeof (Elf32_External_Rela)); | |
a6aa5195 | 10177 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
e1a9cb8e | 10178 | |
a6aa5195 AM |
10179 | if (!h->def_regular) |
10180 | { | |
0eb4a168 AM |
10181 | /* Mark the symbol as undefined, rather than as |
10182 | defined in the .plt section. Leave the value if | |
10183 | there were any relocations where pointer equality | |
10184 | matters (this is a clue for the dynamic linker, to | |
10185 | make function pointer comparisons work between an | |
10186 | application and shared library), otherwise set it | |
10187 | to zero. */ | |
a6aa5195 | 10188 | sym->st_shndx = SHN_UNDEF; |
0eb4a168 | 10189 | if (!h->pointer_equality_needed) |
a6aa5195 | 10190 | sym->st_value = 0; |
0eb4a168 AM |
10191 | else if (!h->ref_regular_nonweak) |
10192 | { | |
625af618 AM |
10193 | /* This breaks function pointer comparisons, but |
10194 | that is better than breaking tests for a NULL | |
0eb4a168 | 10195 | function pointer. */ |
0eb4a168 AM |
10196 | sym->st_value = 0; |
10197 | } | |
a6aa5195 | 10198 | } |
de972ffa | 10199 | else if (h->type == STT_GNU_IFUNC |
0e1862bb | 10200 | && !bfd_link_pic (info)) |
de972ffa AM |
10201 | { |
10202 | /* Set the value of ifunc symbols in a non-pie | |
10203 | executable to the glink entry. This is to avoid | |
10204 | text relocations. We can't do this for ifunc in | |
10205 | allocate_dynrelocs, as we do for normal dynamic | |
10206 | function symbols with plt entries, because we need | |
10207 | to keep the original value around for the ifunc | |
10208 | relocation. */ | |
10209 | sym->st_shndx = (_bfd_elf_section_from_bfd_section | |
10210 | (output_bfd, htab->glink->output_section)); | |
5b914448 AM |
10211 | sym->st_value = (ent->glink_offset |
10212 | + htab->glink->output_offset | |
de972ffa AM |
10213 | + htab->glink->output_section->vma); |
10214 | } | |
a6aa5195 AM |
10215 | doneone = TRUE; |
10216 | } | |
e1a9cb8e | 10217 | |
e054468f | 10218 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
10219 | || !htab->elf.dynamic_sections_created |
10220 | || h->dynindx == -1) | |
a6aa5195 | 10221 | { |
a7f2871e | 10222 | unsigned char *p; |
e054468f | 10223 | asection *splt = htab->plt; |
25f23106 AM |
10224 | if (!htab->elf.dynamic_sections_created |
10225 | || h->dynindx == -1) | |
e054468f | 10226 | splt = htab->iplt; |
e1a9cb8e | 10227 | |
a7f2871e AM |
10228 | p = (unsigned char *) htab->glink->contents + ent->glink_offset; |
10229 | ||
5446cbdf | 10230 | if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
10231 | { |
10232 | bfd_put_32 (output_bfd, LWZ_11_3, p); | |
10233 | p += 4; | |
10234 | bfd_put_32 (output_bfd, LWZ_12_3 + 4, p); | |
10235 | p += 4; | |
10236 | bfd_put_32 (output_bfd, MR_0_3, p); | |
10237 | p += 4; | |
10238 | bfd_put_32 (output_bfd, CMPWI_11_0, p); | |
10239 | p += 4; | |
10240 | bfd_put_32 (output_bfd, ADD_3_12_2, p); | |
10241 | p += 4; | |
10242 | bfd_put_32 (output_bfd, BEQLR, p); | |
10243 | p += 4; | |
10244 | bfd_put_32 (output_bfd, MR_3_0, p); | |
10245 | p += 4; | |
10246 | bfd_put_32 (output_bfd, NOP, p); | |
10247 | p += 4; | |
10248 | } | |
10249 | ||
10250 | write_glink_stub (ent, splt, p, info); | |
e1a9cb8e | 10251 | |
0e1862bb | 10252 | if (!bfd_link_pic (info)) |
e054468f AM |
10253 | /* We only need one non-PIC glink stub. */ |
10254 | break; | |
a6aa5195 AM |
10255 | } |
10256 | else | |
10257 | break; | |
10258 | } | |
e1a9cb8e | 10259 | |
25dbc73a AM |
10260 | if (h->needs_copy) |
10261 | { | |
10262 | asection *s; | |
10263 | Elf_Internal_Rela rela; | |
10264 | bfd_byte *loc; | |
e1a9cb8e | 10265 | |
25dbc73a | 10266 | /* This symbols needs a copy reloc. Set it up. */ |
e1a9cb8e | 10267 | |
25dbc73a AM |
10268 | #ifdef DEBUG |
10269 | fprintf (stderr, ", copy"); | |
10270 | #endif | |
e1a9cb8e | 10271 | |
25dbc73a | 10272 | BFD_ASSERT (h->dynindx != -1); |
86bbe32f | 10273 | |
4dc4a9a5 | 10274 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
10275 | s = htab->relsbss; |
10276 | else | |
10277 | s = htab->relbss; | |
10278 | BFD_ASSERT (s != NULL); | |
e1a9cb8e | 10279 | |
e87d4038 | 10280 | rela.r_offset = SYM_VAL (h); |
25dbc73a AM |
10281 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
10282 | rela.r_addend = 0; | |
10283 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
10284 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10285 | } | |
e1a9cb8e | 10286 | |
25dbc73a AM |
10287 | #ifdef DEBUG |
10288 | fprintf (stderr, "\n"); | |
10289 | #endif | |
e1a9cb8e | 10290 | |
25dbc73a AM |
10291 | return TRUE; |
10292 | } | |
10293 | \f | |
10294 | static enum elf_reloc_type_class | |
7e612e98 AM |
10295 | ppc_elf_reloc_type_class (const struct bfd_link_info *info, |
10296 | const asection *rel_sec, | |
10297 | const Elf_Internal_Rela *rela) | |
e1a9cb8e | 10298 | { |
7e612e98 AM |
10299 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
10300 | ||
10301 | if (rel_sec == htab->reliplt) | |
10302 | return reloc_class_ifunc; | |
10303 | ||
25dbc73a AM |
10304 | switch (ELF32_R_TYPE (rela->r_info)) |
10305 | { | |
10306 | case R_PPC_RELATIVE: | |
10307 | return reloc_class_relative; | |
25dbc73a AM |
10308 | case R_PPC_JMP_SLOT: |
10309 | return reloc_class_plt; | |
10310 | case R_PPC_COPY: | |
10311 | return reloc_class_copy; | |
10312 | default: | |
10313 | return reloc_class_normal; | |
10314 | } | |
e1a9cb8e | 10315 | } |
25dbc73a AM |
10316 | \f |
10317 | /* Finish up the dynamic sections. */ | |
e1a9cb8e | 10318 | |
25dbc73a AM |
10319 | static bfd_boolean |
10320 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, | |
10321 | struct bfd_link_info *info) | |
e1a9cb8e | 10322 | { |
25dbc73a | 10323 | asection *sdyn; |
9d8504b1 | 10324 | asection *splt; |
25dbc73a | 10325 | struct ppc_elf_link_hash_table *htab; |
1fe44d79 | 10326 | bfd_vma got; |
e87d4038 AM |
10327 | bfd *dynobj; |
10328 | bfd_boolean ret = TRUE; | |
e1a9cb8e | 10329 | |
25dbc73a AM |
10330 | #ifdef DEBUG |
10331 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
10332 | #endif | |
6b0817e5 | 10333 | |
25dbc73a | 10334 | htab = ppc_elf_hash_table (info); |
9d8504b1 | 10335 | dynobj = elf_hash_table (info)->dynobj; |
3d4d4302 | 10336 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
9d8504b1 | 10337 | if (htab->is_vxworks) |
3d4d4302 | 10338 | splt = bfd_get_linker_section (dynobj, ".plt"); |
9d8504b1 PB |
10339 | else |
10340 | splt = NULL; | |
e1a9cb8e | 10341 | |
1fe44d79 AM |
10342 | got = 0; |
10343 | if (htab->elf.hgot != NULL) | |
e87d4038 | 10344 | got = SYM_VAL (htab->elf.hgot); |
1fe44d79 | 10345 | |
25dbc73a | 10346 | if (htab->elf.dynamic_sections_created) |
e1a9cb8e | 10347 | { |
25dbc73a | 10348 | Elf32_External_Dyn *dyncon, *dynconend; |
e1a9cb8e | 10349 | |
25dbc73a | 10350 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
86bbe32f | 10351 | |
25dbc73a AM |
10352 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
10353 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
10354 | for (; dyncon < dynconend; dyncon++) | |
10355 | { | |
10356 | Elf_Internal_Dyn dyn; | |
10357 | asection *s; | |
e1a9cb8e | 10358 | |
9d8504b1 | 10359 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
86bbe32f | 10360 | |
25dbc73a AM |
10361 | switch (dyn.d_tag) |
10362 | { | |
10363 | case DT_PLTGOT: | |
9d8504b1 PB |
10364 | if (htab->is_vxworks) |
10365 | s = htab->sgotplt; | |
10366 | else | |
10367 | s = htab->plt; | |
25dbc73a AM |
10368 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
10369 | break; | |
86bbe32f | 10370 | |
25dbc73a AM |
10371 | case DT_PLTRELSZ: |
10372 | dyn.d_un.d_val = htab->relplt->size; | |
10373 | break; | |
e1a9cb8e | 10374 | |
25dbc73a AM |
10375 | case DT_JMPREL: |
10376 | s = htab->relplt; | |
10377 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
10378 | break; | |
2f89ff8d | 10379 | |
1fe44d79 AM |
10380 | case DT_PPC_GOT: |
10381 | dyn.d_un.d_ptr = got; | |
d7128ce4 AM |
10382 | break; |
10383 | ||
9d8504b1 PB |
10384 | case DT_RELASZ: |
10385 | if (htab->is_vxworks) | |
10386 | { | |
10387 | if (htab->relplt) | |
10388 | dyn.d_un.d_ptr -= htab->relplt->size; | |
10389 | break; | |
10390 | } | |
10391 | continue; | |
10392 | ||
25dbc73a | 10393 | default: |
7a2b07ff NS |
10394 | if (htab->is_vxworks |
10395 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
10396 | break; | |
25dbc73a AM |
10397 | continue; |
10398 | } | |
4c45e5c9 | 10399 | |
25dbc73a AM |
10400 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
10401 | } | |
10402 | } | |
4c45e5c9 | 10403 | |
3b36f7e6 | 10404 | if (htab->got != NULL) |
25dbc73a | 10405 | { |
e79f5955 AM |
10406 | if (htab->elf.hgot->root.u.def.section == htab->got |
10407 | || htab->elf.hgot->root.u.def.section == htab->sgotplt) | |
e87d4038 | 10408 | { |
e79f5955 | 10409 | unsigned char *p = htab->elf.hgot->root.u.def.section->contents; |
2f89ff8d | 10410 | |
e87d4038 AM |
10411 | p += htab->elf.hgot->root.u.def.value; |
10412 | if (htab->plt_type == PLT_OLD) | |
e79f5955 AM |
10413 | { |
10414 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 | |
10415 | so that a function can easily find the address of | |
10416 | _GLOBAL_OFFSET_TABLE_. */ | |
10417 | BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 | |
10418 | < htab->elf.hgot->root.u.def.section->size); | |
10419 | bfd_put_32 (output_bfd, 0x4e800021, p - 4); | |
10420 | } | |
3b36f7e6 | 10421 | |
e87d4038 | 10422 | if (sdyn != NULL) |
e79f5955 AM |
10423 | { |
10424 | bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; | |
10425 | BFD_ASSERT (htab->elf.hgot->root.u.def.value | |
10426 | < htab->elf.hgot->root.u.def.section->size); | |
10427 | bfd_put_32 (output_bfd, val, p); | |
10428 | } | |
e87d4038 AM |
10429 | } |
10430 | else | |
10431 | { | |
8de848d8 | 10432 | info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"), |
25f53a85 AM |
10433 | htab->elf.hgot->root.root.string, |
10434 | (htab->sgotplt != NULL | |
10435 | ? htab->sgotplt->name : htab->got->name)); | |
e87d4038 AM |
10436 | bfd_set_error (bfd_error_bad_value); |
10437 | ret = FALSE; | |
10438 | } | |
25dbc73a AM |
10439 | |
10440 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; | |
10441 | } | |
10442 | ||
9d8504b1 PB |
10443 | /* Fill in the first entry in the VxWorks procedure linkage table. */ |
10444 | if (splt && splt->size > 0) | |
10445 | { | |
10446 | /* Use the right PLT. */ | |
0e1862bb | 10447 | const bfd_vma *plt_entry = (bfd_link_pic (info) |
5b914448 AM |
10448 | ? ppc_elf_vxworks_pic_plt0_entry |
10449 | : ppc_elf_vxworks_plt0_entry); | |
9d8504b1 | 10450 | |
0e1862bb | 10451 | if (!bfd_link_pic (info)) |
9d8504b1 | 10452 | { |
e87d4038 | 10453 | bfd_vma got_value = SYM_VAL (htab->elf.hgot); |
9d8504b1 | 10454 | |
e87d4038 | 10455 | bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), |
9d8504b1 | 10456 | splt->contents + 0); |
e87d4038 | 10457 | bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), |
9d8504b1 PB |
10458 | splt->contents + 4); |
10459 | } | |
10460 | else | |
10461 | { | |
10462 | bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); | |
10463 | bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); | |
10464 | } | |
10465 | bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); | |
10466 | bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); | |
10467 | bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); | |
10468 | bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); | |
10469 | bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); | |
10470 | bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); | |
10471 | ||
0e1862bb | 10472 | if (! bfd_link_pic (info)) |
9d8504b1 PB |
10473 | { |
10474 | Elf_Internal_Rela rela; | |
10475 | bfd_byte *loc; | |
10476 | ||
10477 | loc = htab->srelplt2->contents; | |
10478 | ||
10479 | /* Output the @ha relocation for the first instruction. */ | |
10480 | rela.r_offset = (htab->plt->output_section->vma | |
10481 | + htab->plt->output_offset | |
10482 | + 2); | |
636ce3f5 | 10483 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10484 | rela.r_addend = 0; |
10485 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10486 | loc += sizeof (Elf32_External_Rela); | |
5b914448 | 10487 | |
9d8504b1 PB |
10488 | /* Output the @l relocation for the second instruction. */ |
10489 | rela.r_offset = (htab->plt->output_section->vma | |
10490 | + htab->plt->output_offset | |
10491 | + 6); | |
636ce3f5 | 10492 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10493 | rela.r_addend = 0; |
10494 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10495 | loc += sizeof (Elf32_External_Rela); | |
10496 | ||
10497 | /* Fix up the remaining relocations. They may have the wrong | |
10498 | symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
10499 | in which symbols were output. */ | |
10500 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
10501 | { | |
10502 | Elf_Internal_Rela rel; | |
10503 | ||
10504 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10505 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10506 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10507 | loc += sizeof (Elf32_External_Rela); | |
10508 | ||
10509 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10510 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10511 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10512 | loc += sizeof (Elf32_External_Rela); | |
10513 | ||
10514 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
7325306f | 10515 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); |
9d8504b1 PB |
10516 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10517 | loc += sizeof (Elf32_External_Rela); | |
10518 | } | |
10519 | } | |
10520 | } | |
10521 | ||
e054468f AM |
10522 | if (htab->glink != NULL |
10523 | && htab->glink->contents != NULL | |
10524 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
10525 | { |
10526 | unsigned char *p; | |
10527 | unsigned char *endp; | |
a6aa5195 | 10528 | bfd_vma res0; |
d7128ce4 | 10529 | unsigned int i; |
a6aa5195 AM |
10530 | |
10531 | /* | |
10532 | * PIC glink code is the following: | |
10533 | * | |
10534 | * # ith PLT code stub. | |
10535 | * addis 11,30,(plt+(i-1)*4-got)@ha | |
10536 | * lwz 11,(plt+(i-1)*4-got)@l(11) | |
10537 | * mtctr 11 | |
10538 | * bctr | |
10539 | * | |
10540 | * # A table of branches, one for each plt entry. | |
176a0d42 | 10541 | * # The idea is that the plt call stub loads ctr and r11 with these |
a6aa5195 AM |
10542 | * # addresses, so (r11 - res_0) gives the plt index * 4. |
10543 | * res_0: b PLTresolve | |
10544 | * res_1: b PLTresolve | |
10545 | * . | |
10546 | * # Some number of entries towards the end can be nops | |
10547 | * res_n_m3: nop | |
10548 | * res_n_m2: nop | |
10549 | * res_n_m1: | |
10550 | * | |
10551 | * PLTresolve: | |
10552 | * addis 11,11,(1f-res_0)@ha | |
10553 | * mflr 0 | |
10554 | * bcl 20,31,1f | |
10555 | * 1: addi 11,11,(1b-res_0)@l | |
10556 | * mflr 12 | |
10557 | * mtlr 0 | |
10558 | * sub 11,11,12 # r11 = index * 4 | |
10559 | * addis 12,12,(got+4-1b)@ha | |
10560 | * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve | |
10561 | * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address | |
10562 | * mtctr 0 | |
10563 | * add 0,11,11 | |
10564 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10565 | * bctr | |
10566 | */ | |
10567 | static const unsigned int pic_plt_resolve[] = | |
10568 | { | |
10569 | ADDIS_11_11, | |
10570 | MFLR_0, | |
10571 | BCL_20_31, | |
10572 | ADDI_11_11, | |
10573 | MFLR_12, | |
10574 | MTLR_0, | |
10575 | SUB_11_11_12, | |
10576 | ADDIS_12_12, | |
10577 | LWZ_0_12, | |
10578 | LWZ_12_12, | |
10579 | MTCTR_0, | |
10580 | ADD_0_11_11, | |
10581 | ADD_11_0_11, | |
10582 | BCTR, | |
10583 | NOP, | |
10584 | NOP | |
10585 | }; | |
10586 | ||
176a0d42 AM |
10587 | /* |
10588 | * Non-PIC glink code is a little simpler. | |
10589 | * | |
10590 | * # ith PLT code stub. | |
10591 | * lis 11,(plt+(i-1)*4)@ha | |
10592 | * lwz 11,(plt+(i-1)*4)@l(11) | |
10593 | * mtctr 11 | |
10594 | * bctr | |
10595 | * | |
10596 | * The branch table is the same, then comes | |
10597 | * | |
10598 | * PLTresolve: | |
10599 | * lis 12,(got+4)@ha | |
10600 | * addis 11,11,(-res_0)@ha | |
10601 | * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve | |
10602 | * addi 11,11,(-res_0)@l # r11 = index * 4 | |
10603 | * mtctr 0 | |
10604 | * add 0,11,11 | |
10605 | * lwz 12,(got+8)@l(12) # got[2] contains the map address | |
10606 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10607 | * bctr | |
10608 | */ | |
d7128ce4 AM |
10609 | static const unsigned int plt_resolve[] = |
10610 | { | |
a6aa5195 AM |
10611 | LIS_12, |
10612 | ADDIS_11_11, | |
10613 | LWZ_0_12, | |
10614 | ADDI_11_11, | |
d7128ce4 | 10615 | MTCTR_0, |
7e8aeb9a | 10616 | ADD_0_11_11, |
a6aa5195 | 10617 | LWZ_12_12, |
7e8aeb9a | 10618 | ADD_11_0_11, |
d7128ce4 AM |
10619 | BCTR, |
10620 | NOP, | |
10621 | NOP, | |
a6aa5195 AM |
10622 | NOP, |
10623 | NOP, | |
10624 | NOP, | |
10625 | NOP, | |
d7128ce4 AM |
10626 | NOP |
10627 | }; | |
10628 | ||
a6aa5195 AM |
10629 | if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) |
10630 | abort (); | |
10631 | if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) | |
7e8aeb9a AM |
10632 | abort (); |
10633 | ||
a6aa5195 | 10634 | /* Build the branch table, one for each plt entry (less one), |
86b9da88 | 10635 | and perhaps some padding. */ |
a6aa5195 AM |
10636 | p = htab->glink->contents; |
10637 | p += htab->glink_pltresolve; | |
86b9da88 AM |
10638 | endp = htab->glink->contents; |
10639 | endp += htab->glink->size - GLINK_PLTRESOLVE; | |
da3a2088 | 10640 | while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4)) |
86b9da88 AM |
10641 | { |
10642 | bfd_put_32 (output_bfd, B + endp - p, p); | |
10643 | p += 4; | |
10644 | } | |
10645 | while (p < endp) | |
10646 | { | |
10647 | bfd_put_32 (output_bfd, NOP, p); | |
10648 | p += 4; | |
10649 | } | |
10650 | ||
7e8aeb9a | 10651 | res0 = (htab->glink_pltresolve |
86b9da88 AM |
10652 | + htab->glink->output_section->vma |
10653 | + htab->glink->output_offset); | |
10654 | ||
da3a2088 AM |
10655 | if (htab->params->ppc476_workaround) |
10656 | { | |
10657 | /* Ensure that a call stub at the end of a page doesn't | |
10658 | result in prefetch over the end of the page into the | |
10659 | glink branch table. */ | |
10660 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; | |
10661 | bfd_vma page_addr; | |
10662 | bfd_vma glink_start = (htab->glink->output_section->vma | |
10663 | + htab->glink->output_offset); | |
10664 | ||
10665 | for (page_addr = res0 & -pagesize; | |
10666 | page_addr > glink_start; | |
10667 | page_addr -= pagesize) | |
10668 | { | |
10669 | /* We have a plt call stub that may need fixing. */ | |
10670 | bfd_byte *loc; | |
10671 | unsigned int insn; | |
10672 | ||
10673 | loc = htab->glink->contents + page_addr - 4 - glink_start; | |
10674 | insn = bfd_get_32 (output_bfd, loc); | |
10675 | if (insn == BCTR) | |
10676 | { | |
10677 | /* By alignment, we know that there must be at least | |
10678 | one other call stub before this one. */ | |
10679 | insn = bfd_get_32 (output_bfd, loc - 16); | |
10680 | if (insn == BCTR) | |
10681 | bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc); | |
10682 | else | |
10683 | bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc); | |
10684 | } | |
10685 | } | |
10686 | } | |
10687 | ||
86b9da88 | 10688 | /* Last comes the PLTresolve stub. */ |
0e1862bb | 10689 | if (bfd_link_pic (info)) |
7e8aeb9a | 10690 | { |
a6aa5195 | 10691 | bfd_vma bcl; |
d7128ce4 | 10692 | |
a6aa5195 | 10693 | for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) |
7e8aeb9a | 10694 | { |
da3a2088 AM |
10695 | unsigned int insn = pic_plt_resolve[i]; |
10696 | ||
10697 | if (htab->params->ppc476_workaround && insn == NOP) | |
10698 | insn = BA + 0; | |
10699 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10700 | p += 4; |
10701 | } | |
a6aa5195 AM |
10702 | p -= 4 * ARRAY_SIZE (pic_plt_resolve); |
10703 | ||
10704 | bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 | |
10705 | + htab->glink->output_section->vma | |
10706 | + htab->glink->output_offset); | |
10707 | ||
10708 | bfd_put_32 (output_bfd, | |
10709 | ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); | |
10710 | bfd_put_32 (output_bfd, | |
10711 | ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); | |
10712 | bfd_put_32 (output_bfd, | |
10713 | ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); | |
10714 | if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) | |
10715 | { | |
10716 | bfd_put_32 (output_bfd, | |
10717 | LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10718 | bfd_put_32 (output_bfd, | |
10719 | LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); | |
10720 | } | |
10721 | else | |
10722 | { | |
10723 | bfd_put_32 (output_bfd, | |
10724 | LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10725 | bfd_put_32 (output_bfd, | |
10726 | LWZ_12_12 + 4, p + 9*4); | |
10727 | } | |
7e8aeb9a AM |
10728 | } |
10729 | else | |
d7128ce4 | 10730 | { |
a6aa5195 | 10731 | for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) |
7e8aeb9a | 10732 | { |
da3a2088 AM |
10733 | unsigned int insn = plt_resolve[i]; |
10734 | ||
10735 | if (htab->params->ppc476_workaround && insn == NOP) | |
10736 | insn = BA + 0; | |
10737 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10738 | p += 4; |
10739 | } | |
a6aa5195 AM |
10740 | p -= 4 * ARRAY_SIZE (plt_resolve); |
10741 | ||
10742 | bfd_put_32 (output_bfd, | |
10743 | LIS_12 + PPC_HA (got + 4), p + 0*4); | |
10744 | bfd_put_32 (output_bfd, | |
10745 | ADDIS_11_11 + PPC_HA (-res0), p + 1*4); | |
10746 | bfd_put_32 (output_bfd, | |
10747 | ADDI_11_11 + PPC_LO (-res0), p + 3*4); | |
10748 | if (PPC_HA (got + 4) == PPC_HA (got + 8)) | |
10749 | { | |
10750 | bfd_put_32 (output_bfd, | |
10751 | LWZ_0_12 + PPC_LO (got + 4), p + 2*4); | |
10752 | bfd_put_32 (output_bfd, | |
10753 | LWZ_12_12 + PPC_LO (got + 8), p + 6*4); | |
10754 | } | |
10755 | else | |
10756 | { | |
10757 | bfd_put_32 (output_bfd, | |
10758 | LWZU_0_12 + PPC_LO (got + 4), p + 2*4); | |
10759 | bfd_put_32 (output_bfd, | |
10760 | LWZ_12_12 + 4, p + 6*4); | |
10761 | } | |
d7128ce4 | 10762 | } |
d7128ce4 AM |
10763 | } |
10764 | ||
6177242a AM |
10765 | if (htab->glink_eh_frame != NULL |
10766 | && htab->glink_eh_frame->contents != NULL) | |
10767 | { | |
10768 | unsigned char *p = htab->glink_eh_frame->contents; | |
10769 | bfd_vma val; | |
10770 | ||
6177242a AM |
10771 | p += sizeof (glink_eh_frame_cie); |
10772 | /* FDE length. */ | |
6177242a AM |
10773 | p += 4; |
10774 | /* CIE pointer. */ | |
6177242a AM |
10775 | p += 4; |
10776 | /* Offset to .glink. */ | |
10777 | val = (htab->glink->output_section->vma | |
10778 | + htab->glink->output_offset); | |
10779 | val -= (htab->glink_eh_frame->output_section->vma | |
10780 | + htab->glink_eh_frame->output_offset); | |
10781 | val -= p - htab->glink_eh_frame->contents; | |
10782 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6177242a | 10783 | |
dbaa2011 | 10784 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
6177242a AM |
10785 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
10786 | htab->glink_eh_frame, | |
10787 | htab->glink_eh_frame->contents)) | |
10788 | return FALSE; | |
10789 | } | |
10790 | ||
e87d4038 | 10791 | return ret; |
25dbc73a | 10792 | } |
e1a9cb8e | 10793 | \f |
6d00b590 | 10794 | #define TARGET_LITTLE_SYM powerpc_elf32_le_vec |
252b5132 | 10795 | #define TARGET_LITTLE_NAME "elf32-powerpcle" |
6d00b590 | 10796 | #define TARGET_BIG_SYM powerpc_elf32_vec |
252b5132 RH |
10797 | #define TARGET_BIG_NAME "elf32-powerpc" |
10798 | #define ELF_ARCH bfd_arch_powerpc | |
ae95ffa6 | 10799 | #define ELF_TARGET_ID PPC32_ELF_DATA |
252b5132 | 10800 | #define ELF_MACHINE_CODE EM_PPC |
d0facd1b NC |
10801 | #ifdef __QNXTARGET__ |
10802 | #define ELF_MAXPAGESIZE 0x1000 | |
04c6a44c | 10803 | #define ELF_COMMONPAGESIZE 0x1000 |
d0facd1b | 10804 | #else |
252b5132 | 10805 | #define ELF_MAXPAGESIZE 0x10000 |
04c6a44c | 10806 | #define ELF_COMMONPAGESIZE 0x10000 |
d0facd1b | 10807 | #endif |
b1342370 | 10808 | #define ELF_MINPAGESIZE 0x1000 |
252b5132 RH |
10809 | #define elf_info_to_howto ppc_elf_info_to_howto |
10810 | ||
10811 | #ifdef EM_CYGNUS_POWERPC | |
10812 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
10813 | #endif | |
10814 | ||
10815 | #ifdef EM_PPC_OLD | |
10816 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
10817 | #endif | |
10818 | ||
10819 | #define elf_backend_plt_not_loaded 1 | |
252b5132 | 10820 | #define elf_backend_can_gc_sections 1 |
51b64d56 | 10821 | #define elf_backend_can_refcount 1 |
b491616a | 10822 | #define elf_backend_rela_normal 1 |
53291d1f | 10823 | #define elf_backend_caches_rawsize 1 |
252b5132 | 10824 | |
43c40ab2 | 10825 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 10826 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 10827 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 | 10828 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
b9c361e0 | 10829 | #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup |
252b5132 | 10830 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
70bccea4 | 10831 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
468392fb | 10832 | #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab |
252b5132 | 10833 | |
feee612b | 10834 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
10835 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
10836 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
10837 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
10838 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
10839 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
10840 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 10841 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
10842 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
10843 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
10844 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
0eb4a168 | 10845 | #define elf_backend_hash_symbol ppc_elf_hash_symbol |
252b5132 RH |
10846 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
10847 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
10848 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
10849 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
b9c361e0 | 10850 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map |
c5fccbec DJ |
10851 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
10852 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
183e98be | 10853 | #define elf_backend_write_core_note ppc_elf_write_core_note |
29c2fb7c | 10854 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
10855 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
10856 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
10857 | #define elf_backend_write_section ppc_elf_write_section | |
551b43fd | 10858 | #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr |
4c45e5c9 | 10859 | #define elf_backend_plt_sym_val ppc_elf_plt_sym_val |
8a696751 | 10860 | #define elf_backend_action_discarded ppc_elf_action_discarded |
74541ad4 | 10861 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
b9c361e0 | 10862 | #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags |
b9c361e0 | 10863 | #define elf_backend_section_processing ppc_elf_section_processing |
252b5132 RH |
10864 | |
10865 | #include "elf32-target.h" | |
9d8504b1 | 10866 | |
7b8e7dad AM |
10867 | /* FreeBSD Target */ |
10868 | ||
10869 | #undef TARGET_LITTLE_SYM | |
10870 | #undef TARGET_LITTLE_NAME | |
10871 | ||
10872 | #undef TARGET_BIG_SYM | |
6d00b590 | 10873 | #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec |
7b8e7dad AM |
10874 | #undef TARGET_BIG_NAME |
10875 | #define TARGET_BIG_NAME "elf32-powerpc-freebsd" | |
10876 | ||
10877 | #undef ELF_OSABI | |
10878 | #define ELF_OSABI ELFOSABI_FREEBSD | |
10879 | ||
10880 | #undef elf32_bed | |
10881 | #define elf32_bed elf32_powerpc_fbsd_bed | |
10882 | ||
10883 | #include "elf32-target.h" | |
10884 | ||
9d8504b1 PB |
10885 | /* VxWorks Target */ |
10886 | ||
10887 | #undef TARGET_LITTLE_SYM | |
10888 | #undef TARGET_LITTLE_NAME | |
10889 | ||
10890 | #undef TARGET_BIG_SYM | |
6d00b590 | 10891 | #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec |
9d8504b1 PB |
10892 | #undef TARGET_BIG_NAME |
10893 | #define TARGET_BIG_NAME "elf32-powerpc-vxworks" | |
10894 | ||
7b8e7dad AM |
10895 | #undef ELF_OSABI |
10896 | ||
d5e3d971 PB |
10897 | /* VxWorks uses the elf default section flags for .plt. */ |
10898 | static const struct bfd_elf_special_section * | |
10899 | ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
9d8504b1 | 10900 | { |
d5e3d971 PB |
10901 | if (sec->name == NULL) |
10902 | return NULL; | |
10903 | ||
10904 | if (strcmp (sec->name, ".plt") == 0) | |
10905 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
10906 | ||
10907 | return ppc_elf_get_sec_type_attr (abfd, sec); | |
10908 | } | |
9d8504b1 PB |
10909 | |
10910 | /* Like ppc_elf_link_hash_table_create, but overrides | |
10911 | appropriately for VxWorks. */ | |
10912 | static struct bfd_link_hash_table * | |
10913 | ppc_elf_vxworks_link_hash_table_create (bfd *abfd) | |
10914 | { | |
10915 | struct bfd_link_hash_table *ret; | |
10916 | ||
10917 | ret = ppc_elf_link_hash_table_create (abfd); | |
10918 | if (ret) | |
10919 | { | |
10920 | struct ppc_elf_link_hash_table *htab | |
10921 | = (struct ppc_elf_link_hash_table *)ret; | |
10922 | htab->is_vxworks = 1; | |
4a3dc543 | 10923 | htab->plt_type = PLT_VXWORKS; |
9d8504b1 PB |
10924 | htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; |
10925 | htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; | |
10926 | htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; | |
10927 | } | |
10928 | return ret; | |
10929 | } | |
10930 | ||
10931 | /* Tweak magic VxWorks symbols as they are loaded. */ | |
10932 | static bfd_boolean | |
10933 | ppc_elf_vxworks_add_symbol_hook (bfd *abfd, | |
10934 | struct bfd_link_info *info, | |
10935 | Elf_Internal_Sym *sym, | |
10936 | const char **namep ATTRIBUTE_UNUSED, | |
10937 | flagword *flagsp ATTRIBUTE_UNUSED, | |
10938 | asection **secp, | |
10939 | bfd_vma *valp) | |
10940 | { | |
10941 | if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, | |
10942 | valp)) | |
10943 | return FALSE; | |
10944 | ||
10945 | return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); | |
10946 | } | |
10947 | ||
9d8504b1 PB |
10948 | static void |
10949 | ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
10950 | { | |
10951 | ppc_elf_final_write_processing(abfd, linker); | |
10952 | elf_vxworks_final_write_processing(abfd, linker); | |
10953 | } | |
10954 | ||
10955 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
10956 | define it. */ | |
10957 | #undef elf_backend_want_plt_sym | |
10958 | #define elf_backend_want_plt_sym 1 | |
10959 | #undef elf_backend_want_got_plt | |
10960 | #define elf_backend_want_got_plt 1 | |
10961 | #undef elf_backend_got_symbol_offset | |
10962 | #define elf_backend_got_symbol_offset 0 | |
10963 | #undef elf_backend_plt_not_loaded | |
10964 | #define elf_backend_plt_not_loaded 0 | |
10965 | #undef elf_backend_plt_readonly | |
10966 | #define elf_backend_plt_readonly 1 | |
10967 | #undef elf_backend_got_header_size | |
10968 | #define elf_backend_got_header_size 12 | |
10969 | ||
468392fb AM |
10970 | #undef bfd_elf32_get_synthetic_symtab |
10971 | ||
9d8504b1 PB |
10972 | #undef bfd_elf32_bfd_link_hash_table_create |
10973 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10974 | ppc_elf_vxworks_link_hash_table_create | |
9d8504b1 PB |
10975 | #undef elf_backend_add_symbol_hook |
10976 | #define elf_backend_add_symbol_hook \ | |
10977 | ppc_elf_vxworks_add_symbol_hook | |
10978 | #undef elf_backend_link_output_symbol_hook | |
10979 | #define elf_backend_link_output_symbol_hook \ | |
9c72ff84 | 10980 | elf_vxworks_link_output_symbol_hook |
9d8504b1 PB |
10981 | #undef elf_backend_final_write_processing |
10982 | #define elf_backend_final_write_processing \ | |
10983 | ppc_elf_vxworks_final_write_processing | |
d5e3d971 PB |
10984 | #undef elf_backend_get_sec_type_attr |
10985 | #define elf_backend_get_sec_type_attr \ | |
10986 | ppc_elf_vxworks_get_sec_type_attr | |
9d8504b1 PB |
10987 | #undef elf_backend_emit_relocs |
10988 | #define elf_backend_emit_relocs \ | |
10989 | elf_vxworks_emit_relocs | |
10990 | ||
10991 | #undef elf32_bed | |
10992 | #define elf32_bed ppc_elf_vxworks_bed | |
e054468f | 10993 | #undef elf_backend_post_process_headers |
9d8504b1 PB |
10994 | |
10995 | #include "elf32-target.h" |