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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 | { | |
4eca0228 AM |
2044 | _bfd_error_handler (_("%B: unrecognised PPC reloc number: %d"), |
2045 | abfd, r_type); | |
cd21f5da NC |
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 | { | |
4eca0228 AM |
2055 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
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 | ||
25dbc73a AM |
2447 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
2448 | or (bfd_vma) -1 if it should not be included. */ | |
deaaf2f3 | 2449 | |
25dbc73a AM |
2450 | static bfd_vma |
2451 | ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
2452 | const asection *plt ATTRIBUTE_UNUSED, | |
2453 | const arelent *rel) | |
2454 | { | |
2455 | return rel->address; | |
2456 | } | |
deaaf2f3 | 2457 | |
25dbc73a | 2458 | /* Handle a PowerPC specific section when reading an object file. This |
6dc132d9 L |
2459 | is called when bfd_section_from_shdr finds a section with an unknown |
2460 | type. */ | |
deaaf2f3 | 2461 | |
25dbc73a | 2462 | static bfd_boolean |
6dc132d9 L |
2463 | ppc_elf_section_from_shdr (bfd *abfd, |
2464 | Elf_Internal_Shdr *hdr, | |
2465 | const char *name, | |
2466 | int shindex) | |
25dbc73a AM |
2467 | { |
2468 | asection *newsect; | |
2469 | flagword flags; | |
d1c6de6f | 2470 | |
6dc132d9 | 2471 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
25dbc73a | 2472 | return FALSE; |
deaaf2f3 | 2473 | |
25dbc73a AM |
2474 | newsect = hdr->bfd_section; |
2475 | flags = bfd_get_section_flags (abfd, newsect); | |
2476 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2477 | flags |= SEC_EXCLUDE; | |
9abc968f | 2478 | |
25dbc73a AM |
2479 | if (hdr->sh_type == SHT_ORDERED) |
2480 | flags |= SEC_SORT_ENTRIES; | |
d1c6de6f | 2481 | |
25dbc73a AM |
2482 | bfd_set_section_flags (abfd, newsect, flags); |
2483 | return TRUE; | |
2484 | } | |
2485 | ||
2486 | /* Set up any other section flags and such that may be necessary. */ | |
2487 | ||
2488 | static bfd_boolean | |
2489 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
2490 | Elf_Internal_Shdr *shdr, | |
2491 | asection *asect) | |
2492 | { | |
25dbc73a AM |
2493 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) |
2494 | shdr->sh_type = SHT_ORDERED; | |
2495 | ||
2496 | return TRUE; | |
2497 | } | |
2498 | ||
2499 | /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we | |
2500 | need to bump up the number of section headers. */ | |
2501 | ||
2502 | static int | |
a6b96beb AM |
2503 | ppc_elf_additional_program_headers (bfd *abfd, |
2504 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
25dbc73a AM |
2505 | { |
2506 | asection *s; | |
2507 | int ret = 0; | |
d1c6de6f | 2508 | |
25dbc73a AM |
2509 | s = bfd_get_section_by_name (abfd, ".sbss2"); |
2510 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2511 | ++ret; | |
d1c6de6f | 2512 | |
25dbc73a AM |
2513 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); |
2514 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2515 | ++ret; | |
deaaf2f3 | 2516 | |
25dbc73a AM |
2517 | return ret; |
2518 | } | |
deaaf2f3 | 2519 | |
68ffbac6 | 2520 | /* Modify the segment map for VLE executables. */ |
b9c361e0 JL |
2521 | |
2522 | bfd_boolean | |
2523 | ppc_elf_modify_segment_map (bfd *abfd, | |
2524 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
2525 | { | |
f7d69005 | 2526 | struct elf_segment_map *m; |
b9c361e0 JL |
2527 | |
2528 | /* At this point in the link, output sections have already been sorted by | |
2529 | LMA and assigned to segments. All that is left to do is to ensure | |
2530 | there is no mixing of VLE & non-VLE sections in a text segment. | |
2531 | If we find that case, we split the segment. | |
2532 | We maintain the original output section order. */ | |
2533 | ||
12bd6957 | 2534 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
b9c361e0 | 2535 | { |
f7d69005 AM |
2536 | struct elf_segment_map *n; |
2537 | bfd_size_type amt; | |
2538 | unsigned int j, k; | |
2539 | unsigned int p_flags; | |
2540 | ||
2541 | if (m->p_type != PT_LOAD || m->count == 0) | |
b9c361e0 JL |
2542 | continue; |
2543 | ||
f7d69005 | 2544 | for (p_flags = PF_R, j = 0; j != m->count; ++j) |
b9c361e0 | 2545 | { |
f7d69005 AM |
2546 | if ((m->sections[j]->flags & SEC_READONLY) == 0) |
2547 | p_flags |= PF_W; | |
2548 | if ((m->sections[j]->flags & SEC_CODE) != 0) | |
2549 | { | |
2550 | p_flags |= PF_X; | |
2551 | if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0) | |
2552 | p_flags |= PF_PPC_VLE; | |
2553 | break; | |
2554 | } | |
2555 | } | |
2556 | if (j != m->count) | |
2557 | while (++j != m->count) | |
2558 | { | |
2559 | unsigned int p_flags1 = PF_R; | |
94caa966 | 2560 | |
f7d69005 AM |
2561 | if ((m->sections[j]->flags & SEC_READONLY) == 0) |
2562 | p_flags1 |= PF_W; | |
2563 | if ((m->sections[j]->flags & SEC_CODE) != 0) | |
2564 | { | |
2565 | p_flags1 |= PF_X; | |
2566 | if ((elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0) | |
2567 | p_flags1 |= PF_PPC_VLE; | |
2568 | if (((p_flags1 ^ p_flags) & PF_PPC_VLE) != 0) | |
2569 | break; | |
2570 | } | |
2571 | p_flags |= p_flags1; | |
2572 | } | |
2573 | /* If we're splitting a segment which originally contained rw | |
2574 | sections then those sections might now only be in one of the | |
2575 | two parts. So always set p_flags if splitting, even if we | |
2576 | are being called for objcopy with p_flags_valid set. */ | |
2577 | if (j != m->count || !m->p_flags_valid) | |
2578 | { | |
2579 | m->p_flags_valid = 1; | |
2580 | m->p_flags = p_flags; | |
2581 | } | |
2582 | if (j == m->count) | |
b9c361e0 JL |
2583 | continue; |
2584 | ||
f7d69005 | 2585 | /* Sections 0..j-1 stay in this (current) segment, |
b9c361e0 JL |
2586 | the remainder are put in a new segment. |
2587 | The scan resumes with the new segment. */ | |
2588 | ||
b9c361e0 JL |
2589 | amt = sizeof (struct elf_segment_map); |
2590 | amt += (m->count - j - 1) * sizeof (asection *); | |
2591 | n = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
2592 | if (n == NULL) | |
2593 | return FALSE; | |
2594 | ||
2595 | n->p_type = PT_LOAD; | |
b9c361e0 JL |
2596 | n->count = m->count - j; |
2597 | for (k = 0; k < n->count; ++k) | |
f7d69005 AM |
2598 | n->sections[k] = m->sections[j + k]; |
2599 | m->count = j; | |
2600 | m->p_size_valid = 0; | |
b9c361e0 JL |
2601 | n->next = m->next; |
2602 | m->next = n; | |
b9c361e0 JL |
2603 | } |
2604 | ||
2605 | return TRUE; | |
2606 | } | |
2607 | ||
25dbc73a AM |
2608 | /* Add extra PPC sections -- Note, for now, make .sbss2 and |
2609 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
2610 | that the linker doesn't crater when trying to make more than | |
2611 | 2 sections. */ | |
e656e369 | 2612 | |
b35d266b | 2613 | static const struct bfd_elf_special_section ppc_elf_special_sections[] = |
7f4d3958 | 2614 | { |
14b57c7c AM |
2615 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2616 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2617 | { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2618 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2619 | { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2620 | { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, | |
2621 | { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 }, | |
2622 | { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2623 | { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2624 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2625 | }; |
2626 | ||
551b43fd AM |
2627 | /* This is what we want for new plt/got. */ |
2628 | static struct bfd_elf_special_section ppc_alt_plt = | |
0112cd26 | 2629 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; |
551b43fd AM |
2630 | |
2631 | static const struct bfd_elf_special_section * | |
2632 | ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
7f4d3958 | 2633 | { |
b35d266b | 2634 | const struct bfd_elf_special_section *ssect; |
551b43fd AM |
2635 | |
2636 | /* See if this is one of the special sections. */ | |
2637 | if (sec->name == NULL) | |
2638 | return NULL; | |
2639 | ||
2640 | ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, | |
2641 | sec->use_rela_p); | |
2642 | if (ssect != NULL) | |
2643 | { | |
2644 | if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) | |
2645 | ssect = &ppc_alt_plt; | |
2646 | return ssect; | |
2647 | } | |
2648 | ||
2649 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
2650 | } | |
25dbc73a AM |
2651 | \f |
2652 | /* Very simple linked list structure for recording apuinfo values. */ | |
2653 | typedef struct apuinfo_list | |
2654 | { | |
2655 | struct apuinfo_list *next; | |
2656 | unsigned long value; | |
2657 | } | |
2658 | apuinfo_list; | |
e656e369 | 2659 | |
25dbc73a | 2660 | static apuinfo_list *head; |
f2faa800 | 2661 | static bfd_boolean apuinfo_set; |
deaaf2f3 | 2662 | |
25dbc73a AM |
2663 | static void |
2664 | apuinfo_list_init (void) | |
2665 | { | |
2666 | head = NULL; | |
f2faa800 | 2667 | apuinfo_set = FALSE; |
25dbc73a | 2668 | } |
9abc968f | 2669 | |
25dbc73a AM |
2670 | static void |
2671 | apuinfo_list_add (unsigned long value) | |
2672 | { | |
2673 | apuinfo_list *entry = head; | |
deaaf2f3 | 2674 | |
25dbc73a AM |
2675 | while (entry != NULL) |
2676 | { | |
2677 | if (entry->value == value) | |
2678 | return; | |
2679 | entry = entry->next; | |
2680 | } | |
b4a38de6 | 2681 | |
25dbc73a AM |
2682 | entry = bfd_malloc (sizeof (* entry)); |
2683 | if (entry == NULL) | |
2684 | return; | |
e656e369 | 2685 | |
25dbc73a AM |
2686 | entry->value = value; |
2687 | entry->next = head; | |
2688 | head = entry; | |
2689 | } | |
9abc968f | 2690 | |
25dbc73a AM |
2691 | static unsigned |
2692 | apuinfo_list_length (void) | |
2693 | { | |
2694 | apuinfo_list *entry; | |
2695 | unsigned long count; | |
9abc968f | 2696 | |
25dbc73a AM |
2697 | for (entry = head, count = 0; |
2698 | entry; | |
2699 | entry = entry->next) | |
2700 | ++ count; | |
e656e369 | 2701 | |
25dbc73a AM |
2702 | return count; |
2703 | } | |
eea6121a | 2704 | |
25dbc73a AM |
2705 | static inline unsigned long |
2706 | apuinfo_list_element (unsigned long number) | |
2707 | { | |
2708 | apuinfo_list * entry; | |
e656e369 | 2709 | |
25dbc73a AM |
2710 | for (entry = head; |
2711 | entry && number --; | |
2712 | entry = entry->next) | |
2713 | ; | |
252b5132 | 2714 | |
25dbc73a AM |
2715 | return entry ? entry->value : 0; |
2716 | } | |
2717 | ||
2718 | static void | |
2719 | apuinfo_list_finish (void) | |
2720 | { | |
2721 | apuinfo_list *entry; | |
2722 | ||
2723 | for (entry = head; entry;) | |
252b5132 | 2724 | { |
25dbc73a AM |
2725 | apuinfo_list *next = entry->next; |
2726 | free (entry); | |
2727 | entry = next; | |
2728 | } | |
9abc968f | 2729 | |
25dbc73a AM |
2730 | head = NULL; |
2731 | } | |
9abc968f | 2732 | |
25dbc73a AM |
2733 | /* Scan the input BFDs and create a linked list of |
2734 | the APUinfo values that will need to be emitted. */ | |
9abc968f | 2735 | |
25dbc73a AM |
2736 | static void |
2737 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
2738 | { | |
2739 | bfd *ibfd; | |
2740 | asection *asec; | |
deddc40b NS |
2741 | char *buffer = NULL; |
2742 | bfd_size_type largest_input_size = 0; | |
25dbc73a | 2743 | unsigned i; |
25dbc73a AM |
2744 | unsigned long length; |
2745 | const char *error_message = NULL; | |
9abc968f | 2746 | |
25dbc73a AM |
2747 | if (link_info == NULL) |
2748 | return; | |
9abc968f | 2749 | |
25dbc73a | 2750 | apuinfo_list_init (); |
252b5132 | 2751 | |
25dbc73a | 2752 | /* Read in the input sections contents. */ |
c72f2fb2 | 2753 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next) |
252b5132 | 2754 | { |
25dbc73a | 2755 | unsigned long datum; |
252b5132 | 2756 | |
25dbc73a AM |
2757 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2758 | if (asec == NULL) | |
2759 | continue; | |
252b5132 | 2760 | |
deddc40b | 2761 | error_message = _("corrupt %s section in %B"); |
25dbc73a | 2762 | length = asec->size; |
deddc40b NS |
2763 | if (length < 20) |
2764 | goto fail; | |
2765 | ||
f2faa800 | 2766 | apuinfo_set = TRUE; |
deddc40b | 2767 | if (largest_input_size < asec->size) |
25dbc73a | 2768 | { |
deddc40b NS |
2769 | if (buffer) |
2770 | free (buffer); | |
2771 | largest_input_size = asec->size; | |
2772 | buffer = bfd_malloc (largest_input_size); | |
2773 | if (!buffer) | |
2774 | return; | |
25dbc73a | 2775 | } |
5b914448 | 2776 | |
25dbc73a | 2777 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
deddc40b | 2778 | || (bfd_bread (buffer, length, ibfd) != length)) |
25dbc73a AM |
2779 | { |
2780 | error_message = _("unable to read in %s section from %B"); | |
2781 | goto fail; | |
2782 | } | |
252b5132 | 2783 | |
25dbc73a AM |
2784 | /* Verify the contents of the header. Note - we have to |
2785 | extract the values this way in order to allow for a | |
2786 | host whose endian-ness is different from the target. */ | |
deddc40b | 2787 | datum = bfd_get_32 (ibfd, buffer); |
25dbc73a AM |
2788 | if (datum != sizeof APUINFO_LABEL) |
2789 | goto fail; | |
252b5132 | 2790 | |
deddc40b | 2791 | datum = bfd_get_32 (ibfd, buffer + 8); |
25dbc73a AM |
2792 | if (datum != 0x2) |
2793 | goto fail; | |
252b5132 | 2794 | |
deddc40b | 2795 | if (strcmp (buffer + 12, APUINFO_LABEL) != 0) |
25dbc73a | 2796 | goto fail; |
252b5132 | 2797 | |
25dbc73a | 2798 | /* Get the number of bytes used for apuinfo entries. */ |
deddc40b | 2799 | datum = bfd_get_32 (ibfd, buffer + 4); |
25dbc73a AM |
2800 | if (datum + 20 != length) |
2801 | goto fail; | |
2802 | ||
25dbc73a AM |
2803 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ |
2804 | for (i = 0; i < datum; i += 4) | |
deddc40b | 2805 | apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i)); |
252b5132 RH |
2806 | } |
2807 | ||
25dbc73a | 2808 | error_message = NULL; |
252b5132 | 2809 | |
f2faa800 | 2810 | if (apuinfo_set) |
deddc40b | 2811 | { |
f2faa800 NS |
2812 | /* Compute the size of the output section. */ |
2813 | unsigned num_entries = apuinfo_list_length (); | |
5b914448 | 2814 | |
deddc40b NS |
2815 | /* Set the output section size, if it exists. */ |
2816 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
f2faa800 | 2817 | |
deddc40b NS |
2818 | if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4)) |
2819 | { | |
2820 | ibfd = abfd; | |
2821 | error_message = _("warning: unable to set size of %s section in %B"); | |
2822 | } | |
2823 | } | |
25dbc73a AM |
2824 | |
2825 | fail: | |
deddc40b NS |
2826 | if (buffer) |
2827 | free (buffer); | |
25dbc73a AM |
2828 | |
2829 | if (error_message) | |
4eca0228 | 2830 | _bfd_error_handler (error_message, ibfd, APUINFO_SECTION_NAME); |
25dbc73a | 2831 | } |
252b5132 | 2832 | |
25dbc73a AM |
2833 | /* Prevent the output section from accumulating the input sections' |
2834 | contents. We have already stored this in our linked list structure. */ | |
252b5132 | 2835 | |
25dbc73a AM |
2836 | static bfd_boolean |
2837 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
c7b8f16e | 2838 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
25dbc73a AM |
2839 | asection *asec, |
2840 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
2841 | { | |
f2faa800 | 2842 | return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; |
252b5132 RH |
2843 | } |
2844 | ||
25dbc73a AM |
2845 | /* Finally we can generate the output section. */ |
2846 | ||
2847 | static void | |
2848 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
7619e7c7 | 2849 | { |
25dbc73a AM |
2850 | bfd_byte *buffer; |
2851 | asection *asec; | |
2852 | unsigned i; | |
2853 | unsigned num_entries; | |
2854 | bfd_size_type length; | |
7619e7c7 | 2855 | |
25dbc73a AM |
2856 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2857 | if (asec == NULL) | |
2858 | return; | |
2859 | ||
f2faa800 | 2860 | if (!apuinfo_set) |
25dbc73a AM |
2861 | return; |
2862 | ||
2863 | length = asec->size; | |
2864 | if (length < 20) | |
2865 | return; | |
2866 | ||
2867 | buffer = bfd_malloc (length); | |
2868 | if (buffer == NULL) | |
7619e7c7 | 2869 | { |
4eca0228 | 2870 | _bfd_error_handler |
25dbc73a AM |
2871 | (_("failed to allocate space for new APUinfo section.")); |
2872 | return; | |
7619e7c7 | 2873 | } |
7619e7c7 | 2874 | |
25dbc73a AM |
2875 | /* Create the apuinfo header. */ |
2876 | num_entries = apuinfo_list_length (); | |
2877 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
2878 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); | |
2879 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
2880 | strcpy ((char *) buffer + 12, APUINFO_LABEL); | |
feee612b | 2881 | |
25dbc73a AM |
2882 | length = 20; |
2883 | for (i = 0; i < num_entries; i++) | |
feee612b | 2884 | { |
25dbc73a AM |
2885 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); |
2886 | length += 4; | |
feee612b | 2887 | } |
feee612b | 2888 | |
25dbc73a | 2889 | if (length != asec->size) |
4eca0228 | 2890 | _bfd_error_handler (_("failed to compute new APUinfo section.")); |
252b5132 | 2891 | |
25dbc73a | 2892 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
4eca0228 | 2893 | _bfd_error_handler (_("failed to install new APUinfo section.")); |
252b5132 | 2894 | |
25dbc73a AM |
2895 | free (buffer); |
2896 | ||
2897 | apuinfo_list_finish (); | |
252b5132 | 2898 | } |
25dbc73a | 2899 | \f |
7382d32a | 2900 | static bfd_boolean |
c6dd29ce | 2901 | is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) |
7382d32a | 2902 | { |
c6dd29ce | 2903 | bfd_byte buf[GLINK_ENTRY_SIZE]; |
7382d32a | 2904 | |
c6dd29ce | 2905 | if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE)) |
7382d32a AM |
2906 | return FALSE; |
2907 | ||
c6dd29ce AM |
2908 | return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11 |
2909 | && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 | |
2910 | && bfd_get_32 (abfd, buf + 8) == MTCTR_11 | |
2911 | && bfd_get_32 (abfd, buf + 12) == BCTR); | |
7382d32a AM |
2912 | } |
2913 | ||
468392fb AM |
2914 | static bfd_boolean |
2915 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
2916 | { | |
2917 | bfd_vma vma = *(bfd_vma *) ptr; | |
2918 | return ((section->flags & SEC_ALLOC) != 0 | |
2919 | && section->vma <= vma | |
2920 | && vma < section->vma + section->size); | |
2921 | } | |
2922 | ||
2923 | static long | |
2924 | ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, | |
2925 | long dynsymcount, asymbol **dynsyms, | |
2926 | asymbol **ret) | |
2927 | { | |
2928 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
2929 | asection *plt, *relplt, *dynamic, *glink; | |
2930 | bfd_vma glink_vma = 0; | |
2931 | bfd_vma resolv_vma = 0; | |
2932 | bfd_vma stub_vma; | |
2933 | asymbol *s; | |
2934 | arelent *p; | |
2935 | long count, i; | |
2936 | size_t size; | |
2937 | char *names; | |
2938 | bfd_byte buf[4]; | |
2939 | ||
2940 | *ret = NULL; | |
2941 | ||
2942 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) | |
2943 | return 0; | |
2944 | ||
2945 | if (dynsymcount <= 0) | |
2946 | return 0; | |
2947 | ||
2948 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
2949 | if (relplt == NULL) | |
2950 | return 0; | |
2951 | ||
2952 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
2953 | if (plt == NULL) | |
2954 | return 0; | |
2955 | ||
2956 | /* Call common code to handle old-style executable PLTs. */ | |
2957 | if (elf_section_flags (plt) & SHF_EXECINSTR) | |
2958 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
2959 | dynsymcount, dynsyms, ret); | |
2960 | ||
2961 | /* If this object was prelinked, the prelinker stored the address | |
2962 | of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ | |
2963 | dynamic = bfd_get_section_by_name (abfd, ".dynamic"); | |
2964 | if (dynamic != NULL) | |
2965 | { | |
2966 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
2967 | size_t extdynsize; | |
2968 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
2969 | ||
2970 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
2971 | return -1; | |
2972 | ||
2973 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
2974 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
2975 | ||
2976 | extdyn = dynbuf; | |
2977 | extdynend = extdyn + dynamic->size; | |
2978 | for (; extdyn < extdynend; extdyn += extdynsize) | |
2979 | { | |
2980 | Elf_Internal_Dyn dyn; | |
2981 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
2982 | ||
2983 | if (dyn.d_tag == DT_NULL) | |
2984 | break; | |
2985 | ||
2986 | if (dyn.d_tag == DT_PPC_GOT) | |
2987 | { | |
2988 | unsigned int g_o_t = dyn.d_un.d_val; | |
2989 | asection *got = bfd_get_section_by_name (abfd, ".got"); | |
2990 | if (got != NULL | |
2991 | && bfd_get_section_contents (abfd, got, buf, | |
2992 | g_o_t - got->vma + 4, 4)) | |
2993 | glink_vma = bfd_get_32 (abfd, buf); | |
2994 | break; | |
2995 | } | |
2996 | } | |
2997 | free (dynbuf); | |
2998 | } | |
2999 | ||
3000 | /* Otherwise we read the first plt entry. */ | |
3001 | if (glink_vma == 0) | |
3002 | { | |
3003 | if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) | |
3004 | glink_vma = bfd_get_32 (abfd, buf); | |
3005 | } | |
3006 | ||
3007 | if (glink_vma == 0) | |
3008 | return 0; | |
3009 | ||
3010 | /* The .glink section usually does not survive the final | |
3011 | link; search for the section (usually .text) where the | |
3012 | glink stubs now reside. */ | |
3013 | glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); | |
3014 | if (glink == NULL) | |
3015 | return 0; | |
3016 | ||
3017 | /* Determine glink PLT resolver by reading the relative branch | |
3018 | from the first glink stub. */ | |
3019 | if (bfd_get_section_contents (abfd, glink, buf, | |
3020 | glink_vma - glink->vma, 4)) | |
3021 | { | |
3022 | unsigned int insn = bfd_get_32 (abfd, buf); | |
3023 | ||
3024 | /* The first glink stub may either branch to the resolver ... */ | |
3025 | insn ^= B; | |
3026 | if ((insn & ~0x3fffffc) == 0) | |
3027 | resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; | |
3028 | ||
3029 | /* ... or fall through a bunch of NOPs. */ | |
3030 | else if ((insn ^ B ^ NOP) == 0) | |
3031 | for (i = 4; | |
3032 | bfd_get_section_contents (abfd, glink, buf, | |
3033 | glink_vma - glink->vma + i, 4); | |
3034 | i += 4) | |
3035 | if (bfd_get_32 (abfd, buf) != NOP) | |
3036 | { | |
3037 | resolv_vma = glink_vma + i; | |
3038 | break; | |
3039 | } | |
3040 | } | |
3041 | ||
7382d32a | 3042 | count = relplt->size / sizeof (Elf32_External_Rela); |
7382d32a AM |
3043 | /* If the stubs are those for -shared/-pie then we might have |
3044 | multiple stubs for each plt entry. If that is the case then | |
3045 | there is no way to associate stubs with their plt entries short | |
3046 | of figuring out the GOT pointer value used in the stub. */ | |
c6dd29ce AM |
3047 | if (!is_nonpic_glink_stub (abfd, glink, |
3048 | glink_vma - GLINK_ENTRY_SIZE - glink->vma)) | |
7382d32a AM |
3049 | return 0; |
3050 | ||
468392fb AM |
3051 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
3052 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) | |
3053 | return -1; | |
3054 | ||
468392fb AM |
3055 | size = count * sizeof (asymbol); |
3056 | p = relplt->relocation; | |
3057 | for (i = 0; i < count; i++, p++) | |
e054468f AM |
3058 | { |
3059 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
3060 | if (p->addend != 0) | |
3061 | size += sizeof ("+0x") - 1 + 8; | |
3062 | } | |
468392fb AM |
3063 | |
3064 | size += sizeof (asymbol) + sizeof ("__glink"); | |
3065 | ||
3066 | if (resolv_vma) | |
3067 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
3068 | ||
3069 | s = *ret = bfd_malloc (size); | |
3070 | if (s == NULL) | |
3071 | return -1; | |
3072 | ||
1079403c | 3073 | stub_vma = glink_vma; |
468392fb | 3074 | names = (char *) (s + count + 1 + (resolv_vma != 0)); |
1079403c AM |
3075 | p = relplt->relocation + count - 1; |
3076 | for (i = 0; i < count; i++) | |
468392fb AM |
3077 | { |
3078 | size_t len; | |
3079 | ||
3080 | *s = **p->sym_ptr_ptr; | |
3081 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
3082 | we are defining a symbol, ensure one of them is set. */ | |
3083 | if ((s->flags & BSF_LOCAL) == 0) | |
3084 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 3085 | s->flags |= BSF_SYNTHETIC; |
468392fb | 3086 | s->section = glink; |
1079403c AM |
3087 | stub_vma -= 16; |
3088 | if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0) | |
3089 | stub_vma -= 32; | |
468392fb AM |
3090 | s->value = stub_vma - glink->vma; |
3091 | s->name = names; | |
3092 | s->udata.p = NULL; | |
3093 | len = strlen ((*p->sym_ptr_ptr)->name); | |
3094 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
3095 | names += len; | |
e054468f AM |
3096 | if (p->addend != 0) |
3097 | { | |
3098 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
3099 | names += sizeof ("+0x") - 1; | |
3100 | bfd_sprintf_vma (abfd, names, p->addend); | |
3101 | names += strlen (names); | |
3102 | } | |
468392fb AM |
3103 | memcpy (names, "@plt", sizeof ("@plt")); |
3104 | names += sizeof ("@plt"); | |
3105 | ++s; | |
1079403c | 3106 | --p; |
468392fb AM |
3107 | } |
3108 | ||
3109 | /* Add a symbol at the start of the glink branch table. */ | |
86a4952b | 3110 | memset (s, 0, sizeof *s); |
468392fb | 3111 | s->the_bfd = abfd; |
6ba2a415 | 3112 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3113 | s->section = glink; |
3114 | s->value = glink_vma - glink->vma; | |
3115 | s->name = names; | |
3116 | memcpy (names, "__glink", sizeof ("__glink")); | |
3117 | names += sizeof ("__glink"); | |
3118 | s++; | |
3119 | count++; | |
3120 | ||
3121 | if (resolv_vma) | |
3122 | { | |
3123 | /* Add a symbol for the glink PLT resolver. */ | |
86a4952b | 3124 | memset (s, 0, sizeof *s); |
468392fb | 3125 | s->the_bfd = abfd; |
6ba2a415 | 3126 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3127 | s->section = glink; |
3128 | s->value = resolv_vma - glink->vma; | |
3129 | s->name = names; | |
3130 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
3131 | names += sizeof ("__glink_PLTresolve"); | |
3132 | s++; | |
3133 | count++; | |
3134 | } | |
3135 | ||
3136 | return count; | |
3137 | } | |
3138 | \f | |
25dbc73a AM |
3139 | /* The following functions are specific to the ELF linker, while |
3140 | functions above are used generally. They appear in this file more | |
3141 | or less in the order in which they are called. eg. | |
3142 | ppc_elf_check_relocs is called early in the link process, | |
3143 | ppc_elf_finish_dynamic_sections is one of the last functions | |
3144 | called. */ | |
252b5132 | 3145 | |
a6aa5195 | 3146 | /* Track PLT entries needed for a given symbol. We might need more |
a877a2b6 | 3147 | than one glink entry per symbol when generating a pic binary. */ |
a6aa5195 AM |
3148 | struct plt_entry |
3149 | { | |
3150 | struct plt_entry *next; | |
3151 | ||
3152 | /* -fPIC uses multiple GOT sections, one per file, called ".got2". | |
3153 | This field stores the offset into .got2 used to initialise the | |
a877a2b6 AM |
3154 | GOT pointer reg. It will always be at least 32768. (Current |
3155 | gcc always uses an offset of 32768, but ld -r will pack .got2 | |
3156 | sections together resulting in larger offsets). */ | |
a6aa5195 AM |
3157 | bfd_vma addend; |
3158 | ||
3159 | /* The .got2 section. */ | |
3160 | asection *sec; | |
3161 | ||
3162 | /* PLT refcount or offset. */ | |
3163 | union | |
3164 | { | |
3165 | bfd_signed_vma refcount; | |
3166 | bfd_vma offset; | |
3167 | } plt; | |
3168 | ||
3169 | /* .glink stub offset. */ | |
3170 | bfd_vma glink_offset; | |
3171 | }; | |
3172 | ||
1d483afe | 3173 | /* Of those relocs that might be copied as dynamic relocs, this function |
25dbc73a AM |
3174 | selects those that must be copied when linking a shared library, |
3175 | even when the symbol is local. */ | |
252b5132 | 3176 | |
1d483afe AM |
3177 | static int |
3178 | must_be_dyn_reloc (struct bfd_link_info *info, | |
3179 | enum elf_ppc_reloc_type r_type) | |
3180 | { | |
3181 | switch (r_type) | |
3182 | { | |
3183 | default: | |
3184 | return 1; | |
3185 | ||
3186 | case R_PPC_REL24: | |
3187 | case R_PPC_REL14: | |
3188 | case R_PPC_REL14_BRTAKEN: | |
3189 | case R_PPC_REL14_BRNTAKEN: | |
3190 | case R_PPC_REL32: | |
3191 | return 0; | |
3192 | ||
3193 | case R_PPC_TPREL32: | |
3194 | case R_PPC_TPREL16: | |
3195 | case R_PPC_TPREL16_LO: | |
3196 | case R_PPC_TPREL16_HI: | |
3197 | case R_PPC_TPREL16_HA: | |
0e1862bb | 3198 | return !bfd_link_executable (info); |
1d483afe AM |
3199 | } |
3200 | } | |
252b5132 | 3201 | |
25dbc73a AM |
3202 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3203 | copying dynamic variables from a shared lib into an app's dynbss | |
3204 | section, and instead use a dynamic relocation to point into the | |
3205 | shared lib. */ | |
3206 | #define ELIMINATE_COPY_RELOCS 1 | |
252b5132 | 3207 | |
f95f8542 AM |
3208 | /* Used to track dynamic relocations for local symbols. */ |
3209 | struct ppc_dyn_relocs | |
3210 | { | |
3211 | struct ppc_dyn_relocs *next; | |
3212 | ||
3213 | /* The input section of the reloc. */ | |
3214 | asection *sec; | |
3215 | ||
3216 | /* Total number of relocs copied for the input section. */ | |
3217 | unsigned int count : 31; | |
3218 | ||
3219 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
3220 | unsigned int ifunc : 1; | |
3221 | }; | |
3222 | ||
25dbc73a | 3223 | /* PPC ELF linker hash entry. */ |
252b5132 | 3224 | |
25dbc73a AM |
3225 | struct ppc_elf_link_hash_entry |
3226 | { | |
3227 | struct elf_link_hash_entry elf; | |
252b5132 | 3228 | |
25dbc73a AM |
3229 | /* If this symbol is used in the linker created sections, the processor |
3230 | specific backend uses this field to map the field into the offset | |
3231 | from the beginning of the section. */ | |
3232 | elf_linker_section_pointers_t *linker_section_pointer; | |
252b5132 | 3233 | |
25dbc73a | 3234 | /* Track dynamic relocs copied for this symbol. */ |
6061a67d | 3235 | struct elf_dyn_relocs *dyn_relocs; |
252b5132 | 3236 | |
25dbc73a AM |
3237 | /* Contexts in which symbol is used in the GOT (or TOC). |
3238 | TLS_GD .. TLS_TLS bits are or'd into the mask as the | |
3239 | corresponding relocs are encountered during check_relocs. | |
3240 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3241 | indicate the corresponding GOT entry type is not needed. */ | |
3242 | #define TLS_GD 1 /* GD reloc. */ | |
3243 | #define TLS_LD 2 /* LD reloc. */ | |
3244 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3245 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3246 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3247 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
e054468f | 3248 | #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */ |
25dbc73a | 3249 | char tls_mask; |
4dc4a9a5 DJ |
3250 | |
3251 | /* Nonzero if we have seen a small data relocation referring to this | |
3252 | symbol. */ | |
d3e454b9 AM |
3253 | unsigned char has_sda_refs : 1; |
3254 | ||
3255 | /* Flag use of given relocations. */ | |
3256 | unsigned char has_addr16_ha : 1; | |
3257 | unsigned char has_addr16_lo : 1; | |
25dbc73a | 3258 | }; |
252b5132 | 3259 | |
25dbc73a AM |
3260 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) |
3261 | ||
3262 | /* PPC ELF linker hash table. */ | |
3263 | ||
3264 | struct ppc_elf_link_hash_table | |
3265 | { | |
3266 | struct elf_link_hash_table elf; | |
3267 | ||
5446cbdf AM |
3268 | /* Various options passed from the linker. */ |
3269 | struct ppc_elf_params *params; | |
3270 | ||
25dbc73a AM |
3271 | /* Short-cuts to get to dynamic linker sections. */ |
3272 | asection *got; | |
3273 | asection *relgot; | |
d7128ce4 | 3274 | asection *glink; |
25dbc73a AM |
3275 | asection *plt; |
3276 | asection *relplt; | |
e054468f AM |
3277 | asection *iplt; |
3278 | asection *reliplt; | |
25dbc73a AM |
3279 | asection *dynbss; |
3280 | asection *relbss; | |
3281 | asection *dynsbss; | |
3282 | asection *relsbss; | |
c9a2f333 | 3283 | elf_linker_section_t sdata[2]; |
25dbc73a | 3284 | asection *sbss; |
6177242a | 3285 | asection *glink_eh_frame; |
25dbc73a | 3286 | |
016687f8 AM |
3287 | /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ |
3288 | asection *srelplt2; | |
3289 | ||
3290 | /* The .got.plt section (VxWorks only)*/ | |
3291 | asection *sgotplt; | |
3292 | ||
1d483afe | 3293 | /* Shortcut to __tls_get_addr. */ |
25dbc73a | 3294 | struct elf_link_hash_entry *tls_get_addr; |
252b5132 | 3295 | |
016687f8 AM |
3296 | /* The bfd that forced an old-style PLT. */ |
3297 | bfd *old_bfd; | |
5b914448 | 3298 | |
25dbc73a AM |
3299 | /* TLS local dynamic got entry handling. */ |
3300 | union { | |
3301 | bfd_signed_vma refcount; | |
3302 | bfd_vma offset; | |
3303 | } tlsld_got; | |
252b5132 | 3304 | |
c6dd29ce | 3305 | /* Offset of branch table to PltResolve function in glink. */ |
d7128ce4 AM |
3306 | bfd_vma glink_pltresolve; |
3307 | ||
3b36f7e6 AM |
3308 | /* Size of reserved GOT entries. */ |
3309 | unsigned int got_header_size; | |
3310 | /* Non-zero if allocating the header left a gap. */ | |
3311 | unsigned int got_gap; | |
3312 | ||
4a3dc543 RS |
3313 | /* The type of PLT we have chosen to use. */ |
3314 | enum ppc_elf_plt_type plt_type; | |
3315 | ||
9d8504b1 | 3316 | /* True if the target system is VxWorks. */ |
016687f8 | 3317 | unsigned int is_vxworks:1; |
9d8504b1 PB |
3318 | |
3319 | /* The size of PLT entries. */ | |
3320 | int plt_entry_size; | |
3321 | /* The distance between adjacent PLT slots. */ | |
3322 | int plt_slot_size; | |
3323 | /* The size of the first PLT entry. */ | |
3324 | int plt_initial_entry_size; | |
016687f8 | 3325 | |
87d72d41 AM |
3326 | /* Small local sym cache. */ |
3327 | struct sym_cache sym_cache; | |
25dbc73a | 3328 | }; |
252b5132 | 3329 | |
94caa966 AM |
3330 | /* Rename some of the generic section flags to better document how they |
3331 | are used for ppc32. The flags are only valid for ppc32 elf objects. */ | |
3332 | ||
3333 | /* Nonzero if this section has TLS related relocations. */ | |
3334 | #define has_tls_reloc sec_flg0 | |
3335 | ||
3336 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
3337 | #define has_tls_get_addr_call sec_flg1 | |
3338 | ||
25dbc73a | 3339 | /* Get the PPC ELF linker hash table from a link_info structure. */ |
252b5132 | 3340 | |
25dbc73a | 3341 | #define ppc_elf_hash_table(p) \ |
4dfe6ac6 NC |
3342 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
3343 | == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 3344 | |
25dbc73a | 3345 | /* Create an entry in a PPC ELF linker hash table. */ |
252b5132 | 3346 | |
25dbc73a AM |
3347 | static struct bfd_hash_entry * |
3348 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3349 | struct bfd_hash_table *table, | |
3350 | const char *string) | |
252b5132 | 3351 | { |
25dbc73a AM |
3352 | /* Allocate the structure if it has not already been allocated by a |
3353 | subclass. */ | |
3354 | if (entry == NULL) | |
3355 | { | |
3356 | entry = bfd_hash_allocate (table, | |
3357 | sizeof (struct ppc_elf_link_hash_entry)); | |
3358 | if (entry == NULL) | |
3359 | return entry; | |
3360 | } | |
252b5132 | 3361 | |
25dbc73a AM |
3362 | /* Call the allocation method of the superclass. */ |
3363 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3364 | if (entry != NULL) | |
3365 | { | |
3366 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; | |
3367 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
3368 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
5240d94d | 3369 | ppc_elf_hash_entry (entry)->has_sda_refs = 0; |
25dbc73a | 3370 | } |
252b5132 | 3371 | |
25dbc73a | 3372 | return entry; |
252b5132 | 3373 | } |
3dab13f6 | 3374 | |
25dbc73a | 3375 | /* Create a PPC ELF linker hash table. */ |
3dab13f6 | 3376 | |
25dbc73a AM |
3377 | static struct bfd_link_hash_table * |
3378 | ppc_elf_link_hash_table_create (bfd *abfd) | |
3dab13f6 | 3379 | { |
25dbc73a | 3380 | struct ppc_elf_link_hash_table *ret; |
76e7a751 AM |
3381 | static struct ppc_elf_params default_params |
3382 | = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0 }; | |
3dab13f6 | 3383 | |
25dbc73a AM |
3384 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
3385 | if (ret == NULL) | |
3386 | return NULL; | |
3dab13f6 | 3387 | |
66eb6687 AM |
3388 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, |
3389 | ppc_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
3390 | sizeof (struct ppc_elf_link_hash_entry), |
3391 | PPC32_ELF_DATA)) | |
3dab13f6 | 3392 | { |
25dbc73a AM |
3393 | free (ret); |
3394 | return NULL; | |
3395 | } | |
58111eb7 | 3396 | |
a6aa5195 AM |
3397 | ret->elf.init_plt_refcount.refcount = 0; |
3398 | ret->elf.init_plt_refcount.glist = NULL; | |
3399 | ret->elf.init_plt_offset.offset = 0; | |
3400 | ret->elf.init_plt_offset.glist = NULL; | |
3401 | ||
db434ba0 AM |
3402 | ret->params = &default_params; |
3403 | ||
c9a2f333 AM |
3404 | ret->sdata[0].name = ".sdata"; |
3405 | ret->sdata[0].sym_name = "_SDA_BASE_"; | |
3406 | ret->sdata[0].bss_name = ".sbss"; | |
3407 | ||
3408 | ret->sdata[1].name = ".sdata2"; | |
3409 | ret->sdata[1].sym_name = "_SDA2_BASE_"; | |
3410 | ret->sdata[1].bss_name = ".sbss2"; | |
3411 | ||
9d8504b1 PB |
3412 | ret->plt_entry_size = 12; |
3413 | ret->plt_slot_size = 8; | |
3414 | ret->plt_initial_entry_size = 72; | |
9d8504b1 | 3415 | |
25dbc73a AM |
3416 | return &ret->elf.root; |
3417 | } | |
3dab13f6 | 3418 | |
5446cbdf AM |
3419 | /* Hook linker params into hash table. */ |
3420 | ||
3421 | void | |
3422 | ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params) | |
3423 | { | |
3424 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3425 | ||
3426 | if (htab) | |
3427 | htab->params = params; | |
76e7a751 | 3428 | params->pagesize_p2 = bfd_log2 (params->pagesize); |
5446cbdf AM |
3429 | } |
3430 | ||
9d8504b1 | 3431 | /* Create .got and the related sections. */ |
3dab13f6 | 3432 | |
25dbc73a AM |
3433 | static bfd_boolean |
3434 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) | |
3435 | { | |
3436 | struct ppc_elf_link_hash_table *htab; | |
3437 | asection *s; | |
3438 | flagword flags; | |
3dab13f6 | 3439 | |
25dbc73a AM |
3440 | if (!_bfd_elf_create_got_section (abfd, info)) |
3441 | return FALSE; | |
3dab13f6 | 3442 | |
25dbc73a | 3443 | htab = ppc_elf_hash_table (info); |
3d4d4302 | 3444 | htab->got = s = bfd_get_linker_section (abfd, ".got"); |
25dbc73a AM |
3445 | if (s == NULL) |
3446 | abort (); | |
3dab13f6 | 3447 | |
9d8504b1 PB |
3448 | if (htab->is_vxworks) |
3449 | { | |
3d4d4302 | 3450 | htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt"); |
9d8504b1 PB |
3451 | if (!htab->sgotplt) |
3452 | abort (); | |
3453 | } | |
3454 | else | |
3455 | { | |
3456 | /* The powerpc .got has a blrl instruction in it. Mark it | |
3457 | executable. */ | |
3458 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | |
3459 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3460 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3461 | return FALSE; | |
3462 | } | |
3dab13f6 | 3463 | |
3d4d4302 | 3464 | htab->relgot = bfd_get_linker_section (abfd, ".rela.got"); |
64e77c6d L |
3465 | if (!htab->relgot) |
3466 | abort (); | |
3dab13f6 | 3467 | |
25dbc73a AM |
3468 | return TRUE; |
3469 | } | |
3dab13f6 | 3470 | |
93d1b056 AM |
3471 | /* Create a special linker section, used for R_PPC_EMB_SDAI16 and |
3472 | R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata | |
3473 | and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */ | |
3474 | ||
3475 | static bfd_boolean | |
3476 | ppc_elf_create_linker_section (bfd *abfd, | |
3477 | struct bfd_link_info *info, | |
3478 | flagword flags, | |
3479 | elf_linker_section_t *lsect) | |
3480 | { | |
3481 | asection *s; | |
3482 | ||
3483 | flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3484 | | SEC_LINKER_CREATED); | |
3485 | ||
3486 | s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags); | |
3487 | if (s == NULL) | |
3488 | return FALSE; | |
3489 | lsect->section = s; | |
3490 | ||
3491 | /* Define the sym on the first section of this name. */ | |
3492 | s = bfd_get_section_by_name (abfd, lsect->name); | |
3493 | ||
3494 | lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name); | |
3495 | if (lsect->sym == NULL) | |
3496 | return FALSE; | |
3497 | lsect->sym->root.u.def.value = 0x8000; | |
3498 | return TRUE; | |
3499 | } | |
3500 | ||
e054468f AM |
3501 | static bfd_boolean |
3502 | ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info) | |
3503 | { | |
3504 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3505 | asection *s; | |
3506 | flagword flags; | |
3507 | ||
3508 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS | |
3509 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3510 | s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags); | |
3511 | htab->glink = s; | |
3512 | if (s == NULL | |
5446cbdf AM |
3513 | || !bfd_set_section_alignment (abfd, s, |
3514 | htab->params->ppc476_workaround ? 6 : 4)) | |
e054468f AM |
3515 | return FALSE; |
3516 | ||
6177242a AM |
3517 | if (!info->no_ld_generated_unwind_info) |
3518 | { | |
3519 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3520 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3521 | s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags); | |
3522 | htab->glink_eh_frame = s; | |
3523 | if (s == NULL | |
3524 | || !bfd_set_section_alignment (abfd, s, 2)) | |
3525 | return FALSE; | |
3526 | } | |
3527 | ||
e054468f AM |
3528 | flags = SEC_ALLOC | SEC_LINKER_CREATED; |
3529 | s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags); | |
3530 | htab->iplt = s; | |
3531 | if (s == NULL | |
3532 | || !bfd_set_section_alignment (abfd, s, 4)) | |
3533 | return FALSE; | |
3534 | ||
3535 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3536 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3537 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags); |
e054468f AM |
3538 | htab->reliplt = s; |
3539 | if (s == NULL | |
3540 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
3541 | return FALSE; | |
93d1b056 AM |
3542 | |
3543 | if (!ppc_elf_create_linker_section (abfd, info, 0, | |
3544 | &htab->sdata[0])) | |
3545 | return FALSE; | |
3546 | ||
3547 | if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY, | |
3548 | &htab->sdata[1])) | |
3549 | return FALSE; | |
3550 | ||
e054468f AM |
3551 | return TRUE; |
3552 | } | |
3553 | ||
25dbc73a AM |
3554 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
3555 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
3556 | to create .dynbss and .rela.bss). */ | |
3dab13f6 | 3557 | |
25dbc73a AM |
3558 | static bfd_boolean |
3559 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3560 | { | |
3561 | struct ppc_elf_link_hash_table *htab; | |
3562 | asection *s; | |
3563 | flagword flags; | |
3dab13f6 | 3564 | |
25dbc73a | 3565 | htab = ppc_elf_hash_table (info); |
3dab13f6 | 3566 | |
25dbc73a AM |
3567 | if (htab->got == NULL |
3568 | && !ppc_elf_create_got (abfd, info)) | |
3dab13f6 AM |
3569 | return FALSE; |
3570 | ||
25dbc73a AM |
3571 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
3572 | return FALSE; | |
3dab13f6 | 3573 | |
e054468f AM |
3574 | if (htab->glink == NULL |
3575 | && !ppc_elf_create_glink (abfd, info)) | |
d7128ce4 | 3576 | return FALSE; |
3dab13f6 | 3577 | |
3d4d4302 | 3578 | htab->dynbss = bfd_get_linker_section (abfd, ".dynbss"); |
14b2f831 AM |
3579 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", |
3580 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3b36f7e6 | 3581 | htab->dynsbss = s; |
3496cb2a | 3582 | if (s == NULL) |
25dbc73a | 3583 | return FALSE; |
3dab13f6 | 3584 | |
0e1862bb | 3585 | if (! bfd_link_pic (info)) |
25dbc73a | 3586 | { |
3d4d4302 | 3587 | htab->relbss = bfd_get_linker_section (abfd, ".rela.bss"); |
e054468f AM |
3588 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS |
3589 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3590 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags); |
3b36f7e6 | 3591 | htab->relsbss = s; |
25dbc73a | 3592 | if (s == NULL |
25dbc73a AM |
3593 | || ! bfd_set_section_alignment (abfd, s, 2)) |
3594 | return FALSE; | |
3595 | } | |
3dab13f6 | 3596 | |
711de32c RS |
3597 | if (htab->is_vxworks |
3598 | && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
3599 | return FALSE; | |
9d8504b1 | 3600 | |
3d4d4302 AM |
3601 | htab->relplt = bfd_get_linker_section (abfd, ".rela.plt"); |
3602 | htab->plt = s = bfd_get_linker_section (abfd, ".plt"); | |
25dbc73a AM |
3603 | if (s == NULL) |
3604 | abort (); | |
3dab13f6 | 3605 | |
3b36f7e6 | 3606 | flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; |
4a3dc543 RS |
3607 | if (htab->plt_type == PLT_VXWORKS) |
3608 | /* The VxWorks PLT is a loaded section with contents. */ | |
3609 | flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; | |
25dbc73a AM |
3610 | return bfd_set_section_flags (abfd, s, flags); |
3611 | } | |
3dab13f6 | 3612 | |
25dbc73a | 3613 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
58111eb7 | 3614 | |
25dbc73a | 3615 | static void |
fcfa13d2 | 3616 | ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
25dbc73a AM |
3617 | struct elf_link_hash_entry *dir, |
3618 | struct elf_link_hash_entry *ind) | |
3619 | { | |
3620 | struct ppc_elf_link_hash_entry *edir, *eind; | |
3dab13f6 | 3621 | |
25dbc73a AM |
3622 | edir = (struct ppc_elf_link_hash_entry *) dir; |
3623 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
3dab13f6 | 3624 | |
c79d6685 AM |
3625 | edir->tls_mask |= eind->tls_mask; |
3626 | edir->has_sda_refs |= eind->has_sda_refs; | |
3627 | ||
3628 | /* If called to transfer flags for a weakdef during processing | |
3629 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
3630 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3631 | if (!(ELIMINATE_COPY_RELOCS | |
3632 | && eind->elf.root.type != bfd_link_hash_indirect | |
3633 | && edir->elf.dynamic_adjusted)) | |
3634 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
3635 | ||
3636 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
3637 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3638 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3639 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
3640 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
3641 | ||
25dbc73a AM |
3642 | if (eind->dyn_relocs != NULL) |
3643 | { | |
3644 | if (edir->dyn_relocs != NULL) | |
3dab13f6 | 3645 | { |
6061a67d AM |
3646 | struct elf_dyn_relocs **pp; |
3647 | struct elf_dyn_relocs *p; | |
3dab13f6 | 3648 | |
fcfa13d2 | 3649 | /* Add reloc counts against the indirect sym to the direct sym |
25dbc73a AM |
3650 | list. Merge any entries against the same section. */ |
3651 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3dab13f6 | 3652 | { |
6061a67d | 3653 | struct elf_dyn_relocs *q; |
25dbc73a AM |
3654 | |
3655 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3656 | if (q->sec == p->sec) | |
3657 | { | |
3658 | q->pc_count += p->pc_count; | |
3659 | q->count += p->count; | |
3660 | *pp = p->next; | |
3661 | break; | |
3662 | } | |
3663 | if (q == NULL) | |
3664 | pp = &p->next; | |
3dab13f6 | 3665 | } |
25dbc73a | 3666 | *pp = edir->dyn_relocs; |
3dab13f6 | 3667 | } |
25dbc73a AM |
3668 | |
3669 | edir->dyn_relocs = eind->dyn_relocs; | |
3670 | eind->dyn_relocs = NULL; | |
3dab13f6 | 3671 | } |
3dab13f6 | 3672 | |
68ba6d40 AM |
3673 | /* If we were called to copy over info for a weak sym, that's all. |
3674 | You might think dyn_relocs need not be copied over; After all, | |
3675 | both syms will be dynamic or both non-dynamic so we're just | |
68ffbac6 | 3676 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
68ba6d40 AM |
3677 | code in ppc_elf_adjust_dynamic_symbol needs to check for |
3678 | dyn_relocs in read-only sections, and it does so on what is the | |
3679 | DIR sym here. */ | |
3680 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3681 | return; | |
3682 | ||
a6aa5195 AM |
3683 | /* Copy over the GOT refcount entries that we may have already seen to |
3684 | the symbol which just became indirect. */ | |
fcfa13d2 AM |
3685 | edir->elf.got.refcount += eind->elf.got.refcount; |
3686 | eind->elf.got.refcount = 0; | |
a6aa5195 AM |
3687 | |
3688 | /* And plt entries. */ | |
3689 | if (eind->elf.plt.plist != NULL) | |
3690 | { | |
3691 | if (edir->elf.plt.plist != NULL) | |
3692 | { | |
3693 | struct plt_entry **entp; | |
3694 | struct plt_entry *ent; | |
3695 | ||
3696 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3697 | { | |
3698 | struct plt_entry *dent; | |
3699 | ||
3700 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3701 | if (dent->sec == ent->sec && dent->addend == ent->addend) | |
3702 | { | |
3703 | dent->plt.refcount += ent->plt.refcount; | |
3704 | *entp = ent->next; | |
3705 | break; | |
3706 | } | |
3707 | if (dent == NULL) | |
3708 | entp = &ent->next; | |
3709 | } | |
3710 | *entp = edir->elf.plt.plist; | |
3711 | } | |
3712 | ||
3713 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3714 | eind->elf.plt.plist = NULL; | |
3715 | } | |
3716 | ||
fcfa13d2 | 3717 | if (eind->elf.dynindx != -1) |
25dbc73a | 3718 | { |
fcfa13d2 AM |
3719 | if (edir->elf.dynindx != -1) |
3720 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3721 | edir->elf.dynstr_index); | |
a6aa5195 AM |
3722 | edir->elf.dynindx = eind->elf.dynindx; |
3723 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3724 | eind->elf.dynindx = -1; | |
3725 | eind->elf.dynstr_index = 0; | |
25dbc73a | 3726 | } |
25dbc73a | 3727 | } |
3dab13f6 | 3728 | |
25dbc73a AM |
3729 | /* Hook called by the linker routine which adds symbols from an object |
3730 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
58111eb7 | 3731 | |
25dbc73a AM |
3732 | static bfd_boolean |
3733 | ppc_elf_add_symbol_hook (bfd *abfd, | |
3734 | struct bfd_link_info *info, | |
3735 | Elf_Internal_Sym *sym, | |
3736 | const char **namep ATTRIBUTE_UNUSED, | |
3737 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3738 | asection **secp, | |
3739 | bfd_vma *valp) | |
3740 | { | |
3741 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3742 | && !bfd_link_relocatable (info) |
0c8d6e5c AM |
3743 | && is_ppc_elf (info->output_bfd) |
3744 | && sym->st_size <= elf_gp_size (abfd)) | |
25dbc73a AM |
3745 | { |
3746 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3747 | put into .sbss. */ | |
3748 | struct ppc_elf_link_hash_table *htab; | |
3dab13f6 | 3749 | |
25dbc73a AM |
3750 | htab = ppc_elf_hash_table (info); |
3751 | if (htab->sbss == NULL) | |
3752 | { | |
644285ef | 3753 | flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; |
3dab13f6 | 3754 | |
644285ef AM |
3755 | if (!htab->elf.dynobj) |
3756 | htab->elf.dynobj = abfd; | |
3757 | ||
3496cb2a L |
3758 | htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3759 | ".sbss", | |
3760 | flags); | |
3761 | if (htab->sbss == NULL) | |
25dbc73a | 3762 | return FALSE; |
3dab13f6 | 3763 | } |
3dab13f6 | 3764 | |
25dbc73a AM |
3765 | *secp = htab->sbss; |
3766 | *valp = sym->st_size; | |
3767 | } | |
3dab13f6 | 3768 | |
a43942db | 3769 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC |
f1885d1e AM |
3770 | && (abfd->flags & DYNAMIC) == 0 |
3771 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
a43942db | 3772 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
e054468f | 3773 | |
25dbc73a | 3774 | return TRUE; |
3dab13f6 AM |
3775 | } |
3776 | \f | |
25dbc73a AM |
3777 | /* Find a linker generated pointer with a given addend and type. */ |
3778 | ||
3779 | static elf_linker_section_pointers_t * | |
3780 | elf_find_pointer_linker_section | |
3781 | (elf_linker_section_pointers_t *linker_pointers, | |
3782 | bfd_vma addend, | |
3783 | elf_linker_section_t *lsect) | |
252b5132 | 3784 | { |
25dbc73a AM |
3785 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) |
3786 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) | |
3787 | return linker_pointers; | |
252b5132 | 3788 | |
25dbc73a AM |
3789 | return NULL; |
3790 | } | |
3791 | ||
3792 | /* Allocate a pointer to live in a linker created section. */ | |
3793 | ||
3794 | static bfd_boolean | |
93d1b056 AM |
3795 | elf_allocate_pointer_linker_section (bfd *abfd, |
3796 | elf_linker_section_t *lsect, | |
3797 | struct elf_link_hash_entry *h, | |
3798 | const Elf_Internal_Rela *rel) | |
25dbc73a AM |
3799 | { |
3800 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
3801 | elf_linker_section_pointers_t *linker_section_ptr; | |
3802 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
3803 | bfd_size_type amt; | |
3804 | ||
3805 | BFD_ASSERT (lsect != NULL); | |
3806 | ||
3807 | /* Is this a global symbol? */ | |
3808 | if (h != NULL) | |
3809 | { | |
3810 | struct ppc_elf_link_hash_entry *eh; | |
3811 | ||
3812 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3813 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3814 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3815 | rel->r_addend, | |
3816 | lsect)) | |
3817 | return TRUE; | |
3818 | ||
3819 | ptr_linker_section_ptr = &eh->linker_section_pointer; | |
25dbc73a AM |
3820 | } |
3821 | else | |
3822 | { | |
0c8d6e5c | 3823 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3824 | |
25dbc73a AM |
3825 | /* Allocation of a pointer to a local symbol. */ |
3826 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
3827 | ||
3828 | /* Allocate a table to hold the local symbols if first time. */ | |
3829 | if (!ptr) | |
3830 | { | |
0ffa91dd | 3831 | unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; |
25dbc73a AM |
3832 | |
3833 | amt = num_symbols; | |
3834 | amt *= sizeof (elf_linker_section_pointers_t *); | |
3835 | ptr = bfd_zalloc (abfd, amt); | |
3836 | ||
3837 | if (!ptr) | |
3838 | return FALSE; | |
3839 | ||
3840 | elf_local_ptr_offsets (abfd) = ptr; | |
3841 | } | |
3842 | ||
3843 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3844 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
3845 | rel->r_addend, | |
3846 | lsect)) | |
3847 | return TRUE; | |
252b5132 | 3848 | |
25dbc73a | 3849 | ptr_linker_section_ptr = &ptr[r_symndx]; |
25dbc73a | 3850 | } |
41fcb14e | 3851 | |
25dbc73a AM |
3852 | /* Allocate space for a pointer in the linker section, and allocate |
3853 | a new pointer record from internal memory. */ | |
3854 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
3855 | amt = sizeof (elf_linker_section_pointers_t); | |
3856 | linker_section_ptr = bfd_alloc (abfd, amt); | |
41fcb14e | 3857 | |
25dbc73a | 3858 | if (!linker_section_ptr) |
7619e7c7 | 3859 | return FALSE; |
41fcb14e | 3860 | |
25dbc73a AM |
3861 | linker_section_ptr->next = *ptr_linker_section_ptr; |
3862 | linker_section_ptr->addend = rel->r_addend; | |
3863 | linker_section_ptr->lsect = lsect; | |
25dbc73a | 3864 | *ptr_linker_section_ptr = linker_section_ptr; |
41fcb14e | 3865 | |
93d1b056 AM |
3866 | if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2)) |
3867 | return FALSE; | |
25dbc73a AM |
3868 | linker_section_ptr->offset = lsect->section->size; |
3869 | lsect->section->size += 4; | |
7619e7c7 | 3870 | |
25dbc73a AM |
3871 | #ifdef DEBUG |
3872 | fprintf (stderr, | |
3873 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
3874 | lsect->name, (long) linker_section_ptr->offset, | |
3875 | (long) lsect->section->size); | |
3876 | #endif | |
7619e7c7 AM |
3877 | |
3878 | return TRUE; | |
41fcb14e AM |
3879 | } |
3880 | ||
e054468f | 3881 | static struct plt_entry ** |
25dbc73a AM |
3882 | update_local_sym_info (bfd *abfd, |
3883 | Elf_Internal_Shdr *symtab_hdr, | |
3884 | unsigned long r_symndx, | |
3885 | int tls_type) | |
252b5132 | 3886 | { |
25dbc73a | 3887 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); |
e054468f | 3888 | struct plt_entry **local_plt; |
25dbc73a | 3889 | char *local_got_tls_masks; |
252b5132 | 3890 | |
25dbc73a | 3891 | if (local_got_refcounts == NULL) |
252b5132 | 3892 | { |
25dbc73a AM |
3893 | bfd_size_type size = symtab_hdr->sh_info; |
3894 | ||
e054468f AM |
3895 | size *= (sizeof (*local_got_refcounts) |
3896 | + sizeof (*local_plt) | |
3897 | + sizeof (*local_got_tls_masks)); | |
25dbc73a AM |
3898 | local_got_refcounts = bfd_zalloc (abfd, size); |
3899 | if (local_got_refcounts == NULL) | |
e054468f | 3900 | return NULL; |
25dbc73a | 3901 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 3902 | } |
41fcb14e | 3903 | |
e054468f AM |
3904 | local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info); |
3905 | local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
25dbc73a | 3906 | local_got_tls_masks[r_symndx] |= tls_type; |
e054468f AM |
3907 | if (tls_type != PLT_IFUNC) |
3908 | local_got_refcounts[r_symndx] += 1; | |
3909 | return local_plt + r_symndx; | |
25dbc73a | 3910 | } |
41fcb14e | 3911 | |
a6aa5195 | 3912 | static bfd_boolean |
3ec01793 | 3913 | update_plt_info (bfd *abfd, struct plt_entry **plist, |
a6aa5195 AM |
3914 | asection *sec, bfd_vma addend) |
3915 | { | |
3916 | struct plt_entry *ent; | |
3917 | ||
32af9f6e AM |
3918 | if (addend < 32768) |
3919 | sec = NULL; | |
3ec01793 | 3920 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3921 | if (ent->sec == sec && ent->addend == addend) |
3922 | break; | |
3923 | if (ent == NULL) | |
3924 | { | |
3925 | bfd_size_type amt = sizeof (*ent); | |
3926 | ent = bfd_alloc (abfd, amt); | |
3927 | if (ent == NULL) | |
3928 | return FALSE; | |
3ec01793 | 3929 | ent->next = *plist; |
a6aa5195 AM |
3930 | ent->sec = sec; |
3931 | ent->addend = addend; | |
3932 | ent->plt.refcount = 0; | |
3ec01793 | 3933 | *plist = ent; |
a6aa5195 AM |
3934 | } |
3935 | ent->plt.refcount += 1; | |
3936 | return TRUE; | |
3937 | } | |
3938 | ||
3939 | static struct plt_entry * | |
3ec01793 | 3940 | find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend) |
a6aa5195 AM |
3941 | { |
3942 | struct plt_entry *ent; | |
3943 | ||
3944 | if (addend < 32768) | |
3945 | sec = NULL; | |
3ec01793 | 3946 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3947 | if (ent->sec == sec && ent->addend == addend) |
3948 | break; | |
3949 | return ent; | |
3950 | } | |
3951 | ||
e054468f AM |
3952 | static bfd_boolean |
3953 | is_branch_reloc (enum elf_ppc_reloc_type r_type) | |
3954 | { | |
3955 | return (r_type == R_PPC_PLTREL24 | |
3956 | || r_type == R_PPC_LOCAL24PC | |
3957 | || r_type == R_PPC_REL24 | |
3958 | || r_type == R_PPC_REL14 | |
3959 | || r_type == R_PPC_REL14_BRTAKEN | |
3960 | || r_type == R_PPC_REL14_BRNTAKEN | |
3961 | || r_type == R_PPC_ADDR24 | |
3962 | || r_type == R_PPC_ADDR14 | |
3963 | || r_type == R_PPC_ADDR14_BRTAKEN | |
dfdaec14 AJ |
3964 | || r_type == R_PPC_ADDR14_BRNTAKEN |
3965 | || r_type == R_PPC_VLE_REL24); | |
e054468f AM |
3966 | } |
3967 | ||
25dbc73a AM |
3968 | static void |
3969 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) | |
3970 | { | |
4eca0228 | 3971 | _bfd_error_handler |
25dbc73a AM |
3972 | (_("%B: relocation %s cannot be used when making a shared object"), |
3973 | abfd, | |
3974 | ppc_elf_howto_table[r_type]->name); | |
3975 | bfd_set_error (bfd_error_bad_value); | |
252b5132 RH |
3976 | } |
3977 | ||
25dbc73a AM |
3978 | /* Look through the relocs for a section during the first phase, and |
3979 | allocate space in the global offset table or procedure linkage | |
3980 | table. */ | |
252b5132 | 3981 | |
b34976b6 | 3982 | static bfd_boolean |
25dbc73a AM |
3983 | ppc_elf_check_relocs (bfd *abfd, |
3984 | struct bfd_link_info *info, | |
3985 | asection *sec, | |
3986 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3987 | { |
7619e7c7 | 3988 | struct ppc_elf_link_hash_table *htab; |
25dbc73a AM |
3989 | Elf_Internal_Shdr *symtab_hdr; |
3990 | struct elf_link_hash_entry **sym_hashes; | |
3991 | const Elf_Internal_Rela *rel; | |
3992 | const Elf_Internal_Rela *rel_end; | |
a6aa5195 | 3993 | asection *got2, *sreloc; |
727fc41e | 3994 | struct elf_link_hash_entry *tga; |
25dbc73a | 3995 | |
0e1862bb | 3996 | if (bfd_link_relocatable (info)) |
25dbc73a | 3997 | return TRUE; |
252b5132 | 3998 | |
c87b5a93 AM |
3999 | /* Don't do anything special with non-loaded, non-alloced sections. |
4000 | In particular, any relocs in such sections should not affect GOT | |
4001 | and PLT reference counting (ie. we don't allow them to create GOT | |
4002 | or PLT entries), there's no possibility or desire to optimize TLS | |
4003 | relocs, and there's not much point in propagating relocs to shared | |
4004 | libs that the dynamic linker won't relocate. */ | |
4005 | if ((sec->flags & SEC_ALLOC) == 0) | |
4006 | return TRUE; | |
4007 | ||
252b5132 | 4008 | #ifdef DEBUG |
25dbc73a AM |
4009 | _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", |
4010 | sec, abfd); | |
252b5132 RH |
4011 | #endif |
4012 | ||
0c8d6e5c | 4013 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 4014 | |
25dbc73a AM |
4015 | /* Initialize howto table if not already done. */ |
4016 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
4017 | ppc_elf_howto_init (); | |
4018 | ||
7619e7c7 | 4019 | htab = ppc_elf_hash_table (info); |
25f23106 AM |
4020 | if (htab->glink == NULL) |
4021 | { | |
4022 | if (htab->elf.dynobj == NULL) | |
4023 | htab->elf.dynobj = abfd; | |
4024 | if (!ppc_elf_create_glink (htab->elf.dynobj, info)) | |
4025 | return FALSE; | |
4026 | } | |
727fc41e AM |
4027 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
4028 | FALSE, FALSE, TRUE); | |
0ffa91dd | 4029 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a | 4030 | sym_hashes = elf_sym_hashes (abfd); |
a6aa5195 | 4031 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
4032 | sreloc = NULL; |
4033 | ||
4034 | rel_end = relocs + sec->reloc_count; | |
4035 | for (rel = relocs; rel < rel_end; rel++) | |
4036 | { | |
4037 | unsigned long r_symndx; | |
4038 | enum elf_ppc_reloc_type r_type; | |
4039 | struct elf_link_hash_entry *h; | |
727fc41e | 4040 | int tls_type; |
cbf95972 | 4041 | struct plt_entry **ifunc; |
25dbc73a AM |
4042 | |
4043 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4044 | if (r_symndx < symtab_hdr->sh_info) | |
4045 | h = NULL; | |
4046 | else | |
973a3492 L |
4047 | { |
4048 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4049 | while (h->root.type == bfd_link_hash_indirect | |
4050 | || h->root.type == bfd_link_hash_warning) | |
4051 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
4052 | |
4053 | /* PR15323, ref flags aren't set for references in the same | |
4054 | object. */ | |
4055 | h->root.non_ir_ref = 1; | |
973a3492 | 4056 | } |
25dbc73a AM |
4057 | |
4058 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
4059 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
4060 | startup code. */ | |
3b36f7e6 AM |
4061 | if (h != NULL |
4062 | && htab->got == NULL | |
4063 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 4064 | { |
3b36f7e6 AM |
4065 | if (htab->elf.dynobj == NULL) |
4066 | htab->elf.dynobj = abfd; | |
4067 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4068 | return FALSE; | |
4069 | BFD_ASSERT (h == htab->elf.hgot); | |
25dbc73a | 4070 | } |
252b5132 | 4071 | |
727fc41e | 4072 | tls_type = 0; |
de972ffa | 4073 | r_type = ELF32_R_TYPE (rel->r_info); |
cbf95972 | 4074 | ifunc = NULL; |
06a162cf | 4075 | if (h == NULL && !htab->is_vxworks) |
e054468f | 4076 | { |
06a162cf AM |
4077 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4078 | abfd, r_symndx); | |
4079 | if (isym == NULL) | |
4080 | return FALSE; | |
4081 | ||
0bed072f | 4082 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
e054468f | 4083 | { |
0bed072f | 4084 | /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */ |
06a162cf AM |
4085 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, |
4086 | PLT_IFUNC); | |
4087 | if (ifunc == NULL) | |
e054468f AM |
4088 | return FALSE; |
4089 | ||
06a162cf AM |
4090 | /* STT_GNU_IFUNC symbols must have a PLT entry; |
4091 | In a non-pie executable even when there are | |
4092 | no plt calls. */ | |
0e1862bb | 4093 | if (!bfd_link_pic (info) |
0bed072f | 4094 | || is_branch_reloc (r_type)) |
e054468f | 4095 | { |
0bed072f AM |
4096 | bfd_vma addend = 0; |
4097 | if (r_type == R_PPC_PLTREL24) | |
4098 | { | |
4099 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4100 | if (bfd_link_pic (info)) |
0bed072f AM |
4101 | addend = rel->r_addend; |
4102 | } | |
4103 | if (!update_plt_info (abfd, ifunc, got2, addend)) | |
4104 | return FALSE; | |
e054468f AM |
4105 | } |
4106 | } | |
25f23106 AM |
4107 | } |
4108 | ||
de972ffa AM |
4109 | if (!htab->is_vxworks |
4110 | && is_branch_reloc (r_type) | |
4111 | && h != NULL | |
4112 | && h == tga) | |
25f23106 | 4113 | { |
de972ffa AM |
4114 | if (rel != relocs |
4115 | && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD | |
4116 | || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) | |
4117 | /* We have a new-style __tls_get_addr call with a marker | |
4118 | reloc. */ | |
4119 | ; | |
4120 | else | |
4121 | /* Mark this section as having an old-style call. */ | |
4122 | sec->has_tls_get_addr_call = 1; | |
e054468f | 4123 | } |
727fc41e | 4124 | |
25dbc73a AM |
4125 | switch (r_type) |
4126 | { | |
727fc41e AM |
4127 | case R_PPC_TLSGD: |
4128 | case R_PPC_TLSLD: | |
4129 | /* These special tls relocs tie a call to __tls_get_addr with | |
4130 | its parameter symbol. */ | |
4131 | break; | |
4132 | ||
25dbc73a AM |
4133 | case R_PPC_GOT_TLSLD16: |
4134 | case R_PPC_GOT_TLSLD16_LO: | |
4135 | case R_PPC_GOT_TLSLD16_HI: | |
4136 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4137 | tls_type = TLS_TLS | TLS_LD; |
4138 | goto dogottls; | |
252b5132 | 4139 | |
25dbc73a AM |
4140 | case R_PPC_GOT_TLSGD16: |
4141 | case R_PPC_GOT_TLSGD16_LO: | |
4142 | case R_PPC_GOT_TLSGD16_HI: | |
4143 | case R_PPC_GOT_TLSGD16_HA: | |
4144 | tls_type = TLS_TLS | TLS_GD; | |
4145 | goto dogottls; | |
4146 | ||
4147 | case R_PPC_GOT_TPREL16: | |
4148 | case R_PPC_GOT_TPREL16_LO: | |
4149 | case R_PPC_GOT_TPREL16_HI: | |
4150 | case R_PPC_GOT_TPREL16_HA: | |
0e1862bb | 4151 | if (bfd_link_pic (info)) |
25dbc73a AM |
4152 | info->flags |= DF_STATIC_TLS; |
4153 | tls_type = TLS_TLS | TLS_TPREL; | |
4154 | goto dogottls; | |
4155 | ||
4156 | case R_PPC_GOT_DTPREL16: | |
4157 | case R_PPC_GOT_DTPREL16_LO: | |
4158 | case R_PPC_GOT_DTPREL16_HI: | |
4159 | case R_PPC_GOT_DTPREL16_HA: | |
4160 | tls_type = TLS_TLS | TLS_DTPREL; | |
4161 | dogottls: | |
4162 | sec->has_tls_reloc = 1; | |
1a0670f3 | 4163 | /* Fall through. */ |
252b5132 | 4164 | |
25dbc73a AM |
4165 | /* GOT16 relocations */ |
4166 | case R_PPC_GOT16: | |
4167 | case R_PPC_GOT16_LO: | |
4168 | case R_PPC_GOT16_HI: | |
4169 | case R_PPC_GOT16_HA: | |
4170 | /* This symbol requires a global offset table entry. */ | |
4171 | if (htab->got == NULL) | |
4172 | { | |
4173 | if (htab->elf.dynobj == NULL) | |
4174 | htab->elf.dynobj = abfd; | |
4175 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4176 | return FALSE; | |
4177 | } | |
4178 | if (h != NULL) | |
4179 | { | |
4180 | h->got.refcount += 1; | |
4181 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
4182 | } | |
4183 | else | |
4184 | /* This is a global offset table entry for a local symbol. */ | |
4185 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
4186 | return FALSE; | |
91e21fb7 AM |
4187 | |
4188 | /* We may also need a plt entry if the symbol turns out to be | |
4189 | an ifunc. */ | |
0e1862bb | 4190 | if (h != NULL && !bfd_link_pic (info)) |
91e21fb7 AM |
4191 | { |
4192 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4193 | return FALSE; | |
4194 | } | |
25dbc73a | 4195 | break; |
252b5132 | 4196 | |
25dbc73a AM |
4197 | /* Indirect .sdata relocation. */ |
4198 | case R_PPC_EMB_SDAI16: | |
0e1862bb | 4199 | if (bfd_link_pic (info)) |
25dbc73a AM |
4200 | { |
4201 | bad_shared_reloc (abfd, r_type); | |
4202 | return FALSE; | |
4203 | } | |
93d1b056 AM |
4204 | htab->sdata[0].sym->ref_regular = 1; |
4205 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0], | |
4206 | h, rel)) | |
25dbc73a | 4207 | return FALSE; |
046183de AM |
4208 | if (h != NULL) |
4209 | { | |
4210 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4211 | h->non_got_ref = TRUE; | |
4212 | } | |
25dbc73a | 4213 | break; |
252b5132 | 4214 | |
25dbc73a AM |
4215 | /* Indirect .sdata2 relocation. */ |
4216 | case R_PPC_EMB_SDA2I16: | |
0e1862bb | 4217 | if (bfd_link_pic (info)) |
25dbc73a AM |
4218 | { |
4219 | bad_shared_reloc (abfd, r_type); | |
4220 | return FALSE; | |
4221 | } | |
93d1b056 AM |
4222 | htab->sdata[1].sym->ref_regular = 1; |
4223 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1], | |
4224 | h, rel)) | |
25dbc73a | 4225 | return FALSE; |
046183de AM |
4226 | if (h != NULL) |
4227 | { | |
4228 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4229 | h->non_got_ref = TRUE; | |
4230 | } | |
25dbc73a | 4231 | break; |
252b5132 | 4232 | |
93d1b056 AM |
4233 | case R_PPC_SDAREL16: |
4234 | htab->sdata[0].sym->ref_regular = 1; | |
1a0670f3 | 4235 | /* Fall through. */ |
93d1b056 | 4236 | |
b9c361e0 JL |
4237 | case R_PPC_VLE_SDAREL_LO16A: |
4238 | case R_PPC_VLE_SDAREL_LO16D: | |
4239 | case R_PPC_VLE_SDAREL_HI16A: | |
4240 | case R_PPC_VLE_SDAREL_HI16D: | |
4241 | case R_PPC_VLE_SDAREL_HA16A: | |
4242 | case R_PPC_VLE_SDAREL_HA16D: | |
046183de AM |
4243 | if (h != NULL) |
4244 | { | |
4245 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4246 | h->non_got_ref = TRUE; | |
4247 | } | |
4248 | break; | |
4249 | ||
b9c361e0 JL |
4250 | case R_PPC_VLE_REL8: |
4251 | case R_PPC_VLE_REL15: | |
4252 | case R_PPC_VLE_REL24: | |
4253 | case R_PPC_VLE_LO16A: | |
4254 | case R_PPC_VLE_LO16D: | |
4255 | case R_PPC_VLE_HI16A: | |
4256 | case R_PPC_VLE_HI16D: | |
4257 | case R_PPC_VLE_HA16A: | |
4258 | case R_PPC_VLE_HA16D: | |
4259 | break; | |
4260 | ||
25dbc73a | 4261 | case R_PPC_EMB_SDA2REL: |
0e1862bb | 4262 | if (bfd_link_pic (info)) |
046183de AM |
4263 | { |
4264 | bad_shared_reloc (abfd, r_type); | |
4265 | return FALSE; | |
4266 | } | |
93d1b056 | 4267 | htab->sdata[1].sym->ref_regular = 1; |
046183de AM |
4268 | if (h != NULL) |
4269 | { | |
4270 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4271 | h->non_got_ref = TRUE; | |
4272 | } | |
4273 | break; | |
4274 | ||
b9c361e0 JL |
4275 | case R_PPC_VLE_SDA21_LO: |
4276 | case R_PPC_VLE_SDA21: | |
25dbc73a AM |
4277 | case R_PPC_EMB_SDA21: |
4278 | case R_PPC_EMB_RELSDA: | |
0e1862bb | 4279 | if (bfd_link_pic (info)) |
046183de AM |
4280 | { |
4281 | bad_shared_reloc (abfd, r_type); | |
4282 | return FALSE; | |
4283 | } | |
046183de AM |
4284 | if (h != NULL) |
4285 | { | |
4286 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4287 | h->non_got_ref = TRUE; | |
4288 | } | |
4289 | break; | |
4290 | ||
25dbc73a AM |
4291 | case R_PPC_EMB_NADDR32: |
4292 | case R_PPC_EMB_NADDR16: | |
4293 | case R_PPC_EMB_NADDR16_LO: | |
4294 | case R_PPC_EMB_NADDR16_HI: | |
4295 | case R_PPC_EMB_NADDR16_HA: | |
0e1862bb | 4296 | if (bfd_link_pic (info)) |
25dbc73a AM |
4297 | { |
4298 | bad_shared_reloc (abfd, r_type); | |
4299 | return FALSE; | |
4300 | } | |
4dc4a9a5 | 4301 | if (h != NULL) |
046183de | 4302 | h->non_got_ref = TRUE; |
25dbc73a | 4303 | break; |
252b5132 | 4304 | |
25dbc73a | 4305 | case R_PPC_PLTREL24: |
de972ffa | 4306 | if (h == NULL) |
6d78d0b9 AM |
4307 | break; |
4308 | /* Fall through */ | |
4309 | case R_PPC_PLT32: | |
25dbc73a AM |
4310 | case R_PPC_PLTREL32: |
4311 | case R_PPC_PLT16_LO: | |
4312 | case R_PPC_PLT16_HI: | |
4313 | case R_PPC_PLT16_HA: | |
4314 | #ifdef DEBUG | |
4315 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
4316 | #endif | |
cbf95972 | 4317 | /* This symbol requires a procedure linkage table entry. */ |
25dbc73a AM |
4318 | if (h == NULL) |
4319 | { | |
cbf95972 AM |
4320 | if (ifunc == NULL) |
4321 | { | |
4322 | /* It does not make sense to have a procedure linkage | |
4323 | table entry for a non-ifunc local symbol. */ | |
4324 | info->callbacks->einfo | |
4325 | (_("%P: %H: %s reloc against local symbol\n"), | |
4326 | abfd, sec, rel->r_offset, | |
4327 | ppc_elf_howto_table[r_type]->name); | |
4328 | bfd_set_error (bfd_error_bad_value); | |
4329 | return FALSE; | |
4330 | } | |
25dbc73a | 4331 | } |
a6aa5195 AM |
4332 | else |
4333 | { | |
016687f8 | 4334 | bfd_vma addend = 0; |
ee05f2fe | 4335 | |
016687f8 AM |
4336 | if (r_type == R_PPC_PLTREL24) |
4337 | { | |
4338 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4339 | if (bfd_link_pic (info)) |
a877a2b6 | 4340 | addend = rel->r_addend; |
016687f8 | 4341 | } |
a6aa5195 | 4342 | h->needs_plt = 1; |
32af9f6e | 4343 | if (!update_plt_info (abfd, &h->plt.plist, got2, addend)) |
a6aa5195 AM |
4344 | return FALSE; |
4345 | } | |
25dbc73a | 4346 | break; |
ee05f2fe | 4347 | |
25dbc73a AM |
4348 | /* The following relocations don't need to propagate the |
4349 | relocation if linking a shared object since they are | |
4350 | section relative. */ | |
4351 | case R_PPC_SECTOFF: | |
4352 | case R_PPC_SECTOFF_LO: | |
4353 | case R_PPC_SECTOFF_HI: | |
4354 | case R_PPC_SECTOFF_HA: | |
4355 | case R_PPC_DTPREL16: | |
4356 | case R_PPC_DTPREL16_LO: | |
4357 | case R_PPC_DTPREL16_HI: | |
4358 | case R_PPC_DTPREL16_HA: | |
4359 | case R_PPC_TOC16: | |
4360 | break; | |
252b5132 | 4361 | |
d7128ce4 AM |
4362 | case R_PPC_REL16: |
4363 | case R_PPC_REL16_LO: | |
4364 | case R_PPC_REL16_HI: | |
4365 | case R_PPC_REL16_HA: | |
a680de9a | 4366 | case R_PPC_REL16DX_HA: |
016687f8 | 4367 | ppc_elf_tdata (abfd)->has_rel16 = 1; |
d7128ce4 AM |
4368 | break; |
4369 | ||
a6aa5195 | 4370 | /* These are just markers. */ |
25dbc73a AM |
4371 | case R_PPC_TLS: |
4372 | case R_PPC_EMB_MRKREF: | |
4373 | case R_PPC_NONE: | |
4374 | case R_PPC_max: | |
32af9f6e AM |
4375 | case R_PPC_RELAX: |
4376 | case R_PPC_RELAX_PLT: | |
4377 | case R_PPC_RELAX_PLTREL24: | |
25dbc73a | 4378 | break; |
252b5132 | 4379 | |
25dbc73a AM |
4380 | /* These should only appear in dynamic objects. */ |
4381 | case R_PPC_COPY: | |
4382 | case R_PPC_GLOB_DAT: | |
4383 | case R_PPC_JMP_SLOT: | |
4384 | case R_PPC_RELATIVE: | |
e054468f | 4385 | case R_PPC_IRELATIVE: |
25dbc73a | 4386 | break; |
252b5132 | 4387 | |
25dbc73a AM |
4388 | /* These aren't handled yet. We'll report an error later. */ |
4389 | case R_PPC_ADDR30: | |
4390 | case R_PPC_EMB_RELSEC16: | |
4391 | case R_PPC_EMB_RELST_LO: | |
4392 | case R_PPC_EMB_RELST_HI: | |
4393 | case R_PPC_EMB_RELST_HA: | |
4394 | case R_PPC_EMB_BIT_FLD: | |
4395 | break; | |
252b5132 | 4396 | |
25dbc73a AM |
4397 | /* This refers only to functions defined in the shared library. */ |
4398 | case R_PPC_LOCAL24PC: | |
727fc41e | 4399 | if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) |
016687f8 AM |
4400 | { |
4401 | htab->plt_type = PLT_OLD; | |
4402 | htab->old_bfd = abfd; | |
4403 | } | |
c7e17e05 AM |
4404 | if (h != NULL && h->type == STT_GNU_IFUNC) |
4405 | { | |
c7e17e05 AM |
4406 | h->needs_plt = 1; |
4407 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4408 | return FALSE; | |
4409 | } | |
25dbc73a | 4410 | break; |
252b5132 | 4411 | |
25dbc73a AM |
4412 | /* This relocation describes the C++ object vtable hierarchy. |
4413 | Reconstruct it for later use during GC. */ | |
4414 | case R_PPC_GNU_VTINHERIT: | |
4415 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
4416 | return FALSE; | |
4417 | break; | |
252b5132 | 4418 | |
25dbc73a AM |
4419 | /* This relocation describes which C++ vtable entries are actually |
4420 | used. Record for later use during GC. */ | |
4421 | case R_PPC_GNU_VTENTRY: | |
d17e0c6e JB |
4422 | BFD_ASSERT (h != NULL); |
4423 | if (h != NULL | |
4424 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
25dbc73a AM |
4425 | return FALSE; |
4426 | break; | |
252b5132 | 4427 | |
25dbc73a AM |
4428 | /* We shouldn't really be seeing these. */ |
4429 | case R_PPC_TPREL32: | |
1d483afe AM |
4430 | case R_PPC_TPREL16: |
4431 | case R_PPC_TPREL16_LO: | |
4432 | case R_PPC_TPREL16_HI: | |
4433 | case R_PPC_TPREL16_HA: | |
0e1862bb | 4434 | if (bfd_link_pic (info)) |
25dbc73a AM |
4435 | info->flags |= DF_STATIC_TLS; |
4436 | goto dodyn; | |
252b5132 | 4437 | |
25dbc73a AM |
4438 | /* Nor these. */ |
4439 | case R_PPC_DTPMOD32: | |
4440 | case R_PPC_DTPREL32: | |
4441 | goto dodyn; | |
252b5132 | 4442 | |
9edfd1af AM |
4443 | case R_PPC_REL32: |
4444 | if (h == NULL | |
4445 | && got2 != NULL | |
4446 | && (sec->flags & SEC_CODE) != 0 | |
0e1862bb | 4447 | && bfd_link_pic (info) |
4a3dc543 | 4448 | && htab->plt_type == PLT_UNSET) |
9edfd1af AM |
4449 | { |
4450 | /* Old -fPIC gcc code has .long LCTOC1-LCFx just before | |
4451 | the start of a function, which assembles to a REL32 | |
4452 | reference to .got2. If we detect one of these, then | |
4453 | force the old PLT layout because the linker cannot | |
4454 | reliably deduce the GOT pointer value needed for | |
4455 | PLT call stubs. */ | |
4456 | asection *s; | |
87d72d41 | 4457 | Elf_Internal_Sym *isym; |
9edfd1af | 4458 | |
87d72d41 AM |
4459 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4460 | abfd, r_symndx); | |
4461 | if (isym == NULL) | |
4462 | return FALSE; | |
4463 | ||
4464 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
9edfd1af | 4465 | if (s == got2) |
016687f8 AM |
4466 | { |
4467 | htab->plt_type = PLT_OLD; | |
4468 | htab->old_bfd = abfd; | |
4469 | } | |
9edfd1af | 4470 | } |
7123df0e | 4471 | if (h == NULL || h == htab->elf.hgot) |
fd38b44c | 4472 | break; |
625af618 AM |
4473 | /* fall through */ |
4474 | ||
4475 | case R_PPC_ADDR32: | |
4476 | case R_PPC_ADDR16: | |
4477 | case R_PPC_ADDR16_LO: | |
4478 | case R_PPC_ADDR16_HI: | |
4479 | case R_PPC_ADDR16_HA: | |
4480 | case R_PPC_UADDR32: | |
4481 | case R_PPC_UADDR16: | |
0e1862bb | 4482 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
4483 | { |
4484 | /* We may need a plt entry if the symbol turns out to be | |
4485 | a function defined in a dynamic object. */ | |
3ec01793 | 4486 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
625af618 AM |
4487 | return FALSE; |
4488 | ||
4489 | /* We may need a copy reloc too. */ | |
4490 | h->non_got_ref = 1; | |
4491 | h->pointer_equality_needed = 1; | |
d3e454b9 AM |
4492 | if (r_type == R_PPC_ADDR16_HA) |
4493 | ppc_elf_hash_entry (h)->has_addr16_ha = 1; | |
4494 | if (r_type == R_PPC_ADDR16_LO) | |
4495 | ppc_elf_hash_entry (h)->has_addr16_lo = 1; | |
625af618 AM |
4496 | } |
4497 | goto dodyn; | |
9edfd1af | 4498 | |
25dbc73a AM |
4499 | case R_PPC_REL24: |
4500 | case R_PPC_REL14: | |
4501 | case R_PPC_REL14_BRTAKEN: | |
4502 | case R_PPC_REL14_BRNTAKEN: | |
d7128ce4 | 4503 | if (h == NULL) |
25dbc73a | 4504 | break; |
7123df0e | 4505 | if (h == htab->elf.hgot) |
d7128ce4 | 4506 | { |
7123df0e | 4507 | if (htab->plt_type == PLT_UNSET) |
016687f8 AM |
4508 | { |
4509 | htab->plt_type = PLT_OLD; | |
4510 | htab->old_bfd = abfd; | |
4511 | } | |
d7128ce4 AM |
4512 | break; |
4513 | } | |
25dbc73a | 4514 | /* fall through */ |
ee05f2fe | 4515 | |
25dbc73a | 4516 | case R_PPC_ADDR24: |
25dbc73a AM |
4517 | case R_PPC_ADDR14: |
4518 | case R_PPC_ADDR14_BRTAKEN: | |
4519 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 4520 | if (h != NULL && !bfd_link_pic (info)) |
25dbc73a AM |
4521 | { |
4522 | /* We may need a plt entry if the symbol turns out to be | |
4523 | a function defined in a dynamic object. */ | |
e054468f | 4524 | h->needs_plt = 1; |
de972ffa | 4525 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
a6aa5195 | 4526 | return FALSE; |
625af618 | 4527 | break; |
25dbc73a | 4528 | } |
7619e7c7 | 4529 | |
25dbc73a AM |
4530 | dodyn: |
4531 | /* If we are creating a shared library, and this is a reloc | |
4532 | against a global symbol, or a non PC relative reloc | |
4533 | against a local symbol, then we need to copy the reloc | |
4534 | into the shared library. However, if we are linking with | |
4535 | -Bsymbolic, we do not need to copy a reloc against a | |
4536 | global symbol which is defined in an object we are | |
4537 | including in the link (i.e., DEF_REGULAR is set). At | |
4538 | this point we have not seen all the input files, so it is | |
4539 | possible that DEF_REGULAR is not set now but will be set | |
4540 | later (it is never cleared). In case of a weak definition, | |
4541 | DEF_REGULAR may be cleared later by a strong definition in | |
4542 | a shared library. We account for that possibility below by | |
4543 | storing information in the dyn_relocs field of the hash | |
4544 | table entry. A similar situation occurs when creating | |
4545 | shared libraries and symbol visibility changes render the | |
4546 | symbol local. | |
7619e7c7 | 4547 | |
25dbc73a AM |
4548 | If on the other hand, we are creating an executable, we |
4549 | may need to keep relocations for symbols satisfied by a | |
4550 | dynamic library if we manage to avoid copy relocs for the | |
4551 | symbol. */ | |
0e1862bb | 4552 | if ((bfd_link_pic (info) |
1d483afe | 4553 | && (must_be_dyn_reloc (info, r_type) |
25dbc73a | 4554 | || (h != NULL |
198f1157 | 4555 | && (!SYMBOLIC_BIND (info, h) |
25dbc73a AM |
4556 | || h->root.type == bfd_link_hash_defweak |
4557 | || !h->def_regular)))) | |
4558 | || (ELIMINATE_COPY_RELOCS | |
0e1862bb | 4559 | && !bfd_link_pic (info) |
25dbc73a AM |
4560 | && h != NULL |
4561 | && (h->root.type == bfd_link_hash_defweak | |
de972ffa | 4562 | || !h->def_regular))) |
25dbc73a | 4563 | { |
25dbc73a AM |
4564 | #ifdef DEBUG |
4565 | fprintf (stderr, | |
4566 | "ppc_elf_check_relocs needs to " | |
4567 | "create relocation for %s\n", | |
4568 | (h && h->root.root.string | |
4569 | ? h->root.root.string : "<unknown>")); | |
4570 | #endif | |
4571 | if (sreloc == NULL) | |
4572 | { | |
c9a2f333 AM |
4573 | if (htab->elf.dynobj == NULL) |
4574 | htab->elf.dynobj = abfd; | |
83bac4b0 NC |
4575 | |
4576 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
4577 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
4578 | ||
25dbc73a | 4579 | if (sreloc == NULL) |
83bac4b0 | 4580 | return FALSE; |
25dbc73a | 4581 | } |
7619e7c7 | 4582 | |
25dbc73a AM |
4583 | /* If this is a global symbol, we count the number of |
4584 | relocations we need for this symbol. */ | |
4585 | if (h != NULL) | |
4586 | { | |
f95f8542 AM |
4587 | struct elf_dyn_relocs *p; |
4588 | struct elf_dyn_relocs **rel_head; | |
4589 | ||
91d6fa6a | 4590 | rel_head = &ppc_elf_hash_entry (h)->dyn_relocs; |
f95f8542 AM |
4591 | p = *rel_head; |
4592 | if (p == NULL || p->sec != sec) | |
4593 | { | |
4594 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4595 | if (p == NULL) | |
4596 | return FALSE; | |
4597 | p->next = *rel_head; | |
4598 | *rel_head = p; | |
4599 | p->sec = sec; | |
4600 | p->count = 0; | |
4601 | p->pc_count = 0; | |
4602 | } | |
4603 | p->count += 1; | |
4604 | if (!must_be_dyn_reloc (info, r_type)) | |
4605 | p->pc_count += 1; | |
25dbc73a AM |
4606 | } |
4607 | else | |
4608 | { | |
4609 | /* Track dynamic relocs needed for local syms too. | |
4610 | We really need local syms available to do this | |
4611 | easily. Oh well. */ | |
f95f8542 AM |
4612 | struct ppc_dyn_relocs *p; |
4613 | struct ppc_dyn_relocs **rel_head; | |
4614 | bfd_boolean is_ifunc; | |
25dbc73a | 4615 | asection *s; |
6edfbbad | 4616 | void *vpp; |
87d72d41 | 4617 | Elf_Internal_Sym *isym; |
6edfbbad | 4618 | |
87d72d41 AM |
4619 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4620 | abfd, r_symndx); | |
4621 | if (isym == NULL) | |
25dbc73a | 4622 | return FALSE; |
7fce784e | 4623 | |
87d72d41 AM |
4624 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
4625 | if (s == NULL) | |
4626 | s = sec; | |
4627 | ||
6edfbbad | 4628 | vpp = &elf_section_data (s)->local_dynrel; |
f95f8542 AM |
4629 | rel_head = (struct ppc_dyn_relocs **) vpp; |
4630 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
4631 | p = *rel_head; | |
4632 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
4633 | p = p->next; | |
4634 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
4635 | { | |
4636 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4637 | if (p == NULL) | |
4638 | return FALSE; | |
4639 | p->next = *rel_head; | |
4640 | *rel_head = p; | |
4641 | p->sec = sec; | |
4642 | p->ifunc = is_ifunc; | |
4643 | p->count = 0; | |
4644 | } | |
4645 | p->count += 1; | |
25dbc73a | 4646 | } |
7619e7c7 | 4647 | } |
25dbc73a AM |
4648 | |
4649 | break; | |
7619e7c7 AM |
4650 | } |
4651 | } | |
ee05f2fe | 4652 | |
25dbc73a AM |
4653 | return TRUE; |
4654 | } | |
4655 | \f | |
005d79fd AM |
4656 | /* Warn for conflicting Tag_GNU_Power_ABI_FP attributes between IBFD |
4657 | and OBFD, and merge non-conflicting ones. */ | |
4658 | void | |
50e03d47 | 4659 | _bfd_elf_ppc_merge_fp_attributes (bfd *ibfd, struct bfd_link_info *info) |
34c8bcba | 4660 | { |
50e03d47 | 4661 | bfd *obfd = info->output_bfd; |
c6e65352 DJ |
4662 | obj_attribute *in_attr, *in_attrs; |
4663 | obj_attribute *out_attr, *out_attrs; | |
34c8bcba | 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 | ||
c6e65352 DJ |
4668 | in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; |
4669 | out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; | |
005d79fd | 4670 | |
c6e65352 | 4671 | if (in_attr->i != out_attr->i) |
34c8bcba | 4672 | { |
005d79fd AM |
4673 | int in_fp = in_attr->i & 3; |
4674 | int out_fp = out_attr->i & 3; | |
4675 | ||
4676 | if (in_fp == 0) | |
34c8bcba | 4677 | ; |
005d79fd AM |
4678 | else if (out_fp == 0) |
4679 | { | |
4680 | out_attr->type = 1; | |
4681 | out_attr->i ^= in_fp; | |
4682 | } | |
4683 | else if (out_fp != 2 && in_fp == 2) | |
34c8bcba JM |
4684 | _bfd_error_handler |
4685 | (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); | |
005d79fd AM |
4686 | else if (out_fp == 2 && in_fp != 2) |
4687 | _bfd_error_handler | |
4688 | (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); | |
4689 | else if (out_fp == 1 && in_fp == 3) | |
3c7b9897 | 4690 | _bfd_error_handler |
005d79fd AM |
4691 | (_("Warning: %B uses double-precision hard float, " |
4692 | "%B uses single-precision hard float"), obfd, ibfd); | |
4693 | else if (out_fp == 3 && in_fp == 1) | |
3c7b9897 | 4694 | _bfd_error_handler |
005d79fd AM |
4695 | (_("Warning: %B uses double-precision hard float, " |
4696 | "%B uses single-precision hard float"), ibfd, obfd); | |
4697 | ||
4698 | in_fp = in_attr->i & 0xc; | |
4699 | out_fp = out_attr->i & 0xc; | |
4700 | if (in_fp == 0) | |
4701 | ; | |
4702 | else if (out_fp == 0) | |
4703 | { | |
4704 | out_attr->type = 1; | |
4705 | out_attr->i ^= in_fp; | |
4706 | } | |
4707 | else if (out_fp != 2 * 4 && in_fp == 2 * 4) | |
3c7b9897 | 4708 | _bfd_error_handler |
005d79fd AM |
4709 | (_("Warning: %B uses 64-bit long double, " |
4710 | "%B uses 128-bit long double"), ibfd, obfd); | |
4711 | else if (in_fp != 2 * 4 && out_fp == 2 * 4) | |
34c8bcba | 4712 | _bfd_error_handler |
005d79fd AM |
4713 | (_("Warning: %B uses 64-bit long double, " |
4714 | "%B uses 128-bit long double"), obfd, ibfd); | |
4715 | else if (out_fp == 1 * 4 && in_fp == 3 * 4) | |
34c8bcba | 4716 | _bfd_error_handler |
005d79fd AM |
4717 | (_("Warning: %B uses IBM long double, " |
4718 | "%B uses IEEE long double"), ibfd, obfd); | |
4719 | else if (out_fp == 3 * 4 && in_fp == 1 * 4) | |
34c8bcba | 4720 | _bfd_error_handler |
005d79fd AM |
4721 | (_("Warning: %B uses IBM long double, " |
4722 | "%B uses IEEE long double"), obfd, ibfd); | |
c6e65352 | 4723 | } |
005d79fd AM |
4724 | } |
4725 | ||
4726 | /* Merge object attributes from IBFD into OBFD. Warn if | |
4727 | there are conflicting attributes. */ | |
4728 | static bfd_boolean | |
50e03d47 | 4729 | ppc_elf_merge_obj_attributes (bfd *ibfd, struct bfd_link_info *info) |
005d79fd | 4730 | { |
50e03d47 | 4731 | bfd *obfd; |
005d79fd AM |
4732 | obj_attribute *in_attr, *in_attrs; |
4733 | obj_attribute *out_attr, *out_attrs; | |
4734 | ||
50e03d47 | 4735 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
005d79fd | 4736 | |
50e03d47 | 4737 | obfd = info->output_bfd; |
005d79fd AM |
4738 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
4739 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
c6e65352 DJ |
4740 | |
4741 | /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and | |
4742 | merge non-conflicting ones. */ | |
4743 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; | |
4744 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; | |
4745 | if (in_attr->i != out_attr->i) | |
4746 | { | |
005d79fd AM |
4747 | int in_vec = in_attr->i & 3; |
4748 | int out_vec = out_attr->i & 3; | |
c6e65352 | 4749 | |
005d79fd AM |
4750 | if (in_vec == 0) |
4751 | ; | |
4752 | else if (out_vec == 0) | |
c6e65352 | 4753 | { |
005d79fd AM |
4754 | out_attr->type = 1; |
4755 | out_attr->i = in_vec; | |
c6e65352 | 4756 | } |
c6e65352 DJ |
4757 | /* For now, allow generic to transition to AltiVec or SPE |
4758 | without a warning. If GCC marked files with their stack | |
4759 | alignment and used don't-care markings for files which are | |
4760 | not affected by the vector ABI, we could warn about this | |
4761 | case too. */ | |
005d79fd | 4762 | else if (in_vec == 1) |
c6e65352 | 4763 | ; |
005d79fd AM |
4764 | else if (out_vec == 1) |
4765 | { | |
4766 | out_attr->type = 1; | |
4767 | out_attr->i = in_vec; | |
4768 | } | |
4769 | else if (out_vec < in_vec) | |
c6e65352 | 4770 | _bfd_error_handler |
005d79fd AM |
4771 | (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"), |
4772 | obfd, ibfd); | |
4773 | else if (out_vec > in_vec) | |
c6e65352 | 4774 | _bfd_error_handler |
005d79fd AM |
4775 | (_("Warning: %B uses AltiVec vector ABI, %B uses SPE vector ABI"), |
4776 | ibfd, obfd); | |
34c8bcba JM |
4777 | } |
4778 | ||
f82e0623 NF |
4779 | /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes |
4780 | and merge non-conflicting ones. */ | |
4781 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4782 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4783 | if (in_attr->i != out_attr->i) | |
4784 | { | |
005d79fd AM |
4785 | int in_struct = in_attr->i & 3; |
4786 | int out_struct = out_attr->i & 3; | |
4787 | ||
4788 | if (in_struct == 0 || in_struct == 3) | |
f82e0623 | 4789 | ; |
005d79fd AM |
4790 | else if (out_struct == 0) |
4791 | { | |
4792 | out_attr->type = 1; | |
4793 | out_attr->i = in_struct; | |
4794 | } | |
4795 | else if (out_struct < in_struct) | |
4796 | _bfd_error_handler | |
4797 | (_("Warning: %B uses r3/r4 for small structure returns, " | |
4798 | "%B uses memory"), obfd, ibfd); | |
4799 | else if (out_struct > in_struct) | |
4800 | _bfd_error_handler | |
4801 | (_("Warning: %B uses r3/r4 for small structure returns, " | |
4802 | "%B uses memory"), ibfd, obfd); | |
f82e0623 NF |
4803 | } |
4804 | ||
34c8bcba | 4805 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
50e03d47 | 4806 | _bfd_elf_merge_object_attributes (ibfd, info); |
34c8bcba JM |
4807 | |
4808 | return TRUE; | |
4809 | } | |
4810 | ||
8853c3d3 AM |
4811 | /* Merge backend specific data from an object file to the output |
4812 | object file when linking. */ | |
4813 | ||
4814 | static bfd_boolean | |
50e03d47 | 4815 | ppc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
8853c3d3 | 4816 | { |
50e03d47 | 4817 | bfd *obfd = info->output_bfd; |
8853c3d3 AM |
4818 | flagword old_flags; |
4819 | flagword new_flags; | |
4820 | bfd_boolean error; | |
4821 | ||
0c8d6e5c | 4822 | if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) |
8853c3d3 AM |
4823 | return TRUE; |
4824 | ||
cc643b88 | 4825 | /* Check if we have the same endianness. */ |
50e03d47 | 4826 | if (! _bfd_generic_verify_endian_match (ibfd, info)) |
8853c3d3 AM |
4827 | return FALSE; |
4828 | ||
50e03d47 | 4829 | if (!ppc_elf_merge_obj_attributes (ibfd, info)) |
34c8bcba JM |
4830 | return FALSE; |
4831 | ||
8853c3d3 AM |
4832 | new_flags = elf_elfheader (ibfd)->e_flags; |
4833 | old_flags = elf_elfheader (obfd)->e_flags; | |
4834 | if (!elf_flags_init (obfd)) | |
4835 | { | |
4836 | /* First call, no flags set. */ | |
4837 | elf_flags_init (obfd) = TRUE; | |
4838 | elf_elfheader (obfd)->e_flags = new_flags; | |
4839 | } | |
4840 | ||
4841 | /* Compatible flags are ok. */ | |
4842 | else if (new_flags == old_flags) | |
4843 | ; | |
4844 | ||
4845 | /* Incompatible flags. */ | |
4846 | else | |
4847 | { | |
4848 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib | |
4849 | to be linked with either. */ | |
4850 | error = FALSE; | |
4851 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 | |
4852 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
4853 | { | |
4854 | error = TRUE; | |
4eca0228 | 4855 | _bfd_error_handler |
8853c3d3 AM |
4856 | (_("%B: compiled with -mrelocatable and linked with " |
4857 | "modules compiled normally"), ibfd); | |
4858 | } | |
4859 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
4860 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
4861 | { | |
4862 | error = TRUE; | |
4eca0228 | 4863 | _bfd_error_handler |
8853c3d3 AM |
4864 | (_("%B: compiled normally and linked with " |
4865 | "modules compiled with -mrelocatable"), ibfd); | |
4866 | } | |
4867 | ||
4868 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
4869 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
4870 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
4871 | ||
4872 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
4873 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
4874 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
4875 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
4876 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
4877 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
4878 | ||
4879 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if | |
4880 | any module uses it. */ | |
4881 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); | |
4882 | ||
4883 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4884 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4885 | ||
4886 | /* Warn about any other mismatches. */ | |
4887 | if (new_flags != old_flags) | |
4888 | { | |
4889 | error = TRUE; | |
4eca0228 | 4890 | _bfd_error_handler |
8853c3d3 AM |
4891 | (_("%B: uses different e_flags (0x%lx) fields " |
4892 | "than previous modules (0x%lx)"), | |
4893 | ibfd, (long) new_flags, (long) old_flags); | |
4894 | } | |
4895 | ||
4896 | if (error) | |
4897 | { | |
4898 | bfd_set_error (bfd_error_bad_value); | |
4899 | return FALSE; | |
4900 | } | |
4901 | } | |
4902 | ||
4903 | return TRUE; | |
4904 | } | |
b9c361e0 JL |
4905 | |
4906 | static void | |
86c95733 AM |
4907 | ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc, |
4908 | bfd_vma value, | |
4909 | split16_format_type split16_format) | |
b9c361e0 JL |
4910 | |
4911 | { | |
86c95733 | 4912 | unsigned int insn, top5; |
b9c361e0 | 4913 | |
86c95733 AM |
4914 | insn = bfd_get_32 (output_bfd, loc); |
4915 | top5 = value & 0xf800; | |
4916 | top5 = top5 << (split16_format == split16a_type ? 9 : 5); | |
dfdaec14 | 4917 | insn &= (split16_format == split16a_type ? ~0x1f007ff : ~0x1f07ff); |
b9c361e0 | 4918 | insn |= top5; |
86c95733 AM |
4919 | insn |= value & 0x7ff; |
4920 | bfd_put_32 (output_bfd, insn, loc); | |
b9c361e0 JL |
4921 | } |
4922 | ||
8853c3d3 | 4923 | \f |
d7128ce4 AM |
4924 | /* Choose which PLT scheme to use, and set .plt flags appropriately. |
4925 | Returns -1 on error, 0 for old PLT, 1 for new PLT. */ | |
4926 | int | |
4927 | ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, | |
5446cbdf | 4928 | struct bfd_link_info *info) |
d7128ce4 AM |
4929 | { |
4930 | struct ppc_elf_link_hash_table *htab; | |
9d8504b1 | 4931 | flagword flags; |
d7128ce4 AM |
4932 | |
4933 | htab = ppc_elf_hash_table (info); | |
4a3dc543 RS |
4934 | |
4935 | if (htab->plt_type == PLT_UNSET) | |
016687f8 | 4936 | { |
b3874e1a AM |
4937 | struct elf_link_hash_entry *h; |
4938 | ||
5446cbdf | 4939 | if (htab->params->plt_style == PLT_OLD) |
016687f8 | 4940 | htab->plt_type = PLT_OLD; |
0e1862bb | 4941 | else if (bfd_link_pic (info) |
b3874e1a AM |
4942 | && htab->elf.dynamic_sections_created |
4943 | && (h = elf_link_hash_lookup (&htab->elf, "_mcount", | |
4944 | FALSE, FALSE, TRUE)) != NULL | |
4945 | && (h->type == STT_FUNC | |
4946 | || h->needs_plt) | |
4947 | && h->ref_regular | |
4948 | && !(SYMBOL_CALLS_LOCAL (info, h) | |
4949 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4950 | && h->root.type == bfd_link_hash_undefweak))) | |
4951 | { | |
4952 | /* Profiling of shared libs (and pies) is not supported with | |
4953 | secure plt, because ppc32 does profiling before a | |
4954 | function prologue and a secure plt pic call stubs needs | |
4955 | r30 to be set up. */ | |
4956 | htab->plt_type = PLT_OLD; | |
4957 | } | |
016687f8 AM |
4958 | else |
4959 | { | |
4960 | bfd *ibfd; | |
5446cbdf | 4961 | enum ppc_elf_plt_type plt_type = htab->params->plt_style; |
016687f8 AM |
4962 | |
4963 | /* Look through the reloc flags left by ppc_elf_check_relocs. | |
4964 | Use the old style bss plt if a file makes plt calls | |
4965 | without using the new relocs, and if ld isn't given | |
4966 | --secure-plt and we never see REL16 relocs. */ | |
4967 | if (plt_type == PLT_UNSET) | |
4968 | plt_type = PLT_OLD; | |
c72f2fb2 | 4969 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
0c8d6e5c | 4970 | if (is_ppc_elf (ibfd)) |
016687f8 AM |
4971 | { |
4972 | if (ppc_elf_tdata (ibfd)->has_rel16) | |
4973 | plt_type = PLT_NEW; | |
4974 | else if (ppc_elf_tdata (ibfd)->makes_plt_call) | |
4975 | { | |
4976 | plt_type = PLT_OLD; | |
4977 | htab->old_bfd = ibfd; | |
4978 | break; | |
4979 | } | |
4980 | } | |
4981 | htab->plt_type = plt_type; | |
4982 | } | |
4983 | } | |
5446cbdf | 4984 | if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW) |
b3874e1a AM |
4985 | { |
4986 | if (htab->old_bfd != NULL) | |
4987 | info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"), | |
4988 | htab->old_bfd); | |
4989 | else | |
4990 | info->callbacks->einfo (_("%P: bss-plt forced by profiling\n")); | |
4991 | } | |
d7128ce4 | 4992 | |
4a3dc543 | 4993 | BFD_ASSERT (htab->plt_type != PLT_VXWORKS); |
9d8504b1 | 4994 | |
4a3dc543 | 4995 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
4996 | { |
4997 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
4998 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
86b9da88 AM |
4999 | |
5000 | /* The new PLT is a loaded section. */ | |
5001 | if (htab->plt != NULL | |
5002 | && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) | |
5003 | return -1; | |
5004 | ||
5005 | /* The new GOT is not executable. */ | |
5006 | if (htab->got != NULL | |
5007 | && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) | |
5008 | return -1; | |
d7128ce4 AM |
5009 | } |
5010 | else | |
5011 | { | |
5012 | /* Stop an unused .glink section from affecting .text alignment. */ | |
86b9da88 AM |
5013 | if (htab->glink != NULL |
5014 | && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) | |
5015 | return -1; | |
d7128ce4 | 5016 | } |
4a3dc543 | 5017 | return htab->plt_type == PLT_NEW; |
d7128ce4 AM |
5018 | } |
5019 | \f | |
25dbc73a AM |
5020 | /* Return the section that should be marked against GC for a given |
5021 | relocation. */ | |
586119b3 | 5022 | |
25dbc73a AM |
5023 | static asection * |
5024 | ppc_elf_gc_mark_hook (asection *sec, | |
07adf181 | 5025 | struct bfd_link_info *info, |
25dbc73a AM |
5026 | Elf_Internal_Rela *rel, |
5027 | struct elf_link_hash_entry *h, | |
5028 | Elf_Internal_Sym *sym) | |
5029 | { | |
5030 | if (h != NULL) | |
07adf181 AM |
5031 | switch (ELF32_R_TYPE (rel->r_info)) |
5032 | { | |
5033 | case R_PPC_GNU_VTINHERIT: | |
5034 | case R_PPC_GNU_VTENTRY: | |
5035 | return NULL; | |
5036 | } | |
5037 | ||
5038 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
25dbc73a | 5039 | } |
a876ecf9 | 5040 | |
25dbc73a AM |
5041 | /* Update the got, plt and dynamic reloc reference counts for the |
5042 | section being removed. */ | |
5043 | ||
5044 | static bfd_boolean | |
5045 | ppc_elf_gc_sweep_hook (bfd *abfd, | |
5046 | struct bfd_link_info *info, | |
5047 | asection *sec, | |
5048 | const Elf_Internal_Rela *relocs) | |
5049 | { | |
5050 | struct ppc_elf_link_hash_table *htab; | |
5051 | Elf_Internal_Shdr *symtab_hdr; | |
5052 | struct elf_link_hash_entry **sym_hashes; | |
5053 | bfd_signed_vma *local_got_refcounts; | |
5054 | const Elf_Internal_Rela *rel, *relend; | |
a6aa5195 | 5055 | asection *got2; |
25dbc73a | 5056 | |
0e1862bb | 5057 | if (bfd_link_relocatable (info)) |
7dda2462 TG |
5058 | return TRUE; |
5059 | ||
c87b5a93 AM |
5060 | if ((sec->flags & SEC_ALLOC) == 0) |
5061 | return TRUE; | |
5062 | ||
25dbc73a AM |
5063 | elf_section_data (sec)->local_dynrel = NULL; |
5064 | ||
5065 | htab = ppc_elf_hash_table (info); | |
0ffa91dd | 5066 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a AM |
5067 | sym_hashes = elf_sym_hashes (abfd); |
5068 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a6aa5195 | 5069 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
5070 | |
5071 | relend = relocs + sec->reloc_count; | |
5072 | for (rel = relocs; rel < relend; rel++) | |
5073 | { | |
5074 | unsigned long r_symndx; | |
5075 | enum elf_ppc_reloc_type r_type; | |
5076 | struct elf_link_hash_entry *h = NULL; | |
5077 | ||
5078 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5079 | if (r_symndx >= symtab_hdr->sh_info) | |
a876ecf9 | 5080 | { |
6061a67d | 5081 | struct elf_dyn_relocs **pp, *p; |
25dbc73a AM |
5082 | struct ppc_elf_link_hash_entry *eh; |
5083 | ||
5084 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5085 | while (h->root.type == bfd_link_hash_indirect | |
5086 | || h->root.type == bfd_link_hash_warning) | |
5087 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5088 | eh = (struct ppc_elf_link_hash_entry *) h; | |
5089 | ||
5090 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
5091 | if (p->sec == sec) | |
5092 | { | |
5093 | /* Everything must go for SEC. */ | |
5094 | *pp = p->next; | |
5095 | break; | |
5096 | } | |
a876ecf9 | 5097 | } |
ee05f2fe | 5098 | |
25dbc73a | 5099 | r_type = ELF32_R_TYPE (rel->r_info); |
de972ffa AM |
5100 | if (!htab->is_vxworks |
5101 | && h == NULL | |
5102 | && local_got_refcounts != NULL | |
0e1862bb | 5103 | && (!bfd_link_pic (info) |
de972ffa | 5104 | || is_branch_reloc (r_type))) |
e054468f | 5105 | { |
de972ffa AM |
5106 | struct plt_entry **local_plt = (struct plt_entry **) |
5107 | (local_got_refcounts + symtab_hdr->sh_info); | |
5108 | char *local_got_tls_masks = (char *) | |
5109 | (local_plt + symtab_hdr->sh_info); | |
5110 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
e054468f | 5111 | { |
de972ffa | 5112 | struct plt_entry **ifunc = local_plt + r_symndx; |
a877a2b6 AM |
5113 | bfd_vma addend = 0; |
5114 | struct plt_entry *ent; | |
5115 | ||
0e1862bb | 5116 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5117 | addend = rel->r_addend; |
5118 | ent = find_plt_ent (ifunc, got2, addend); | |
e054468f AM |
5119 | if (ent->plt.refcount > 0) |
5120 | ent->plt.refcount -= 1; | |
5121 | continue; | |
5122 | } | |
5123 | } | |
5124 | ||
25dbc73a | 5125 | switch (r_type) |
ee05f2fe | 5126 | { |
25dbc73a AM |
5127 | case R_PPC_GOT_TLSLD16: |
5128 | case R_PPC_GOT_TLSLD16_LO: | |
5129 | case R_PPC_GOT_TLSLD16_HI: | |
5130 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
5131 | case R_PPC_GOT_TLSGD16: |
5132 | case R_PPC_GOT_TLSGD16_LO: | |
5133 | case R_PPC_GOT_TLSGD16_HI: | |
5134 | case R_PPC_GOT_TLSGD16_HA: | |
5135 | case R_PPC_GOT_TPREL16: | |
5136 | case R_PPC_GOT_TPREL16_LO: | |
5137 | case R_PPC_GOT_TPREL16_HI: | |
5138 | case R_PPC_GOT_TPREL16_HA: | |
5139 | case R_PPC_GOT_DTPREL16: | |
5140 | case R_PPC_GOT_DTPREL16_LO: | |
5141 | case R_PPC_GOT_DTPREL16_HI: | |
5142 | case R_PPC_GOT_DTPREL16_HA: | |
5143 | case R_PPC_GOT16: | |
5144 | case R_PPC_GOT16_LO: | |
5145 | case R_PPC_GOT16_HI: | |
5146 | case R_PPC_GOT16_HA: | |
5147 | if (h != NULL) | |
ee05f2fe | 5148 | { |
25dbc73a AM |
5149 | if (h->got.refcount > 0) |
5150 | h->got.refcount--; | |
0e1862bb | 5151 | if (!bfd_link_pic (info)) |
91e21fb7 AM |
5152 | { |
5153 | struct plt_entry *ent; | |
5154 | ||
5155 | ent = find_plt_ent (&h->plt.plist, NULL, 0); | |
32af9f6e | 5156 | if (ent != NULL && ent->plt.refcount > 0) |
91e21fb7 AM |
5157 | ent->plt.refcount -= 1; |
5158 | } | |
ee05f2fe | 5159 | } |
25dbc73a AM |
5160 | else if (local_got_refcounts != NULL) |
5161 | { | |
5162 | if (local_got_refcounts[r_symndx] > 0) | |
5163 | local_got_refcounts[r_symndx]--; | |
5164 | } | |
5165 | break; | |
ee05f2fe | 5166 | |
25dbc73a AM |
5167 | case R_PPC_REL24: |
5168 | case R_PPC_REL14: | |
5169 | case R_PPC_REL14_BRTAKEN: | |
5170 | case R_PPC_REL14_BRNTAKEN: | |
5171 | case R_PPC_REL32: | |
3b36f7e6 | 5172 | if (h == NULL || h == htab->elf.hgot) |
25dbc73a | 5173 | break; |
1a0670f3 | 5174 | /* Fall through. */ |
ee05f2fe | 5175 | |
25dbc73a AM |
5176 | case R_PPC_ADDR32: |
5177 | case R_PPC_ADDR24: | |
5178 | case R_PPC_ADDR16: | |
5179 | case R_PPC_ADDR16_LO: | |
5180 | case R_PPC_ADDR16_HI: | |
5181 | case R_PPC_ADDR16_HA: | |
5182 | case R_PPC_ADDR14: | |
5183 | case R_PPC_ADDR14_BRTAKEN: | |
5184 | case R_PPC_ADDR14_BRNTAKEN: | |
5185 | case R_PPC_UADDR32: | |
5186 | case R_PPC_UADDR16: | |
0e1862bb | 5187 | if (bfd_link_pic (info)) |
87538722 | 5188 | break; |
1a0670f3 | 5189 | /* Fall through. */ |
87538722 | 5190 | |
25dbc73a AM |
5191 | case R_PPC_PLT32: |
5192 | case R_PPC_PLTREL24: | |
87538722 | 5193 | case R_PPC_PLTREL32: |
25dbc73a AM |
5194 | case R_PPC_PLT16_LO: |
5195 | case R_PPC_PLT16_HI: | |
5196 | case R_PPC_PLT16_HA: | |
5197 | if (h != NULL) | |
5198 | { | |
a877a2b6 AM |
5199 | bfd_vma addend = 0; |
5200 | struct plt_entry *ent; | |
5201 | ||
0e1862bb | 5202 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5203 | addend = rel->r_addend; |
5204 | ent = find_plt_ent (&h->plt.plist, got2, addend); | |
32af9f6e | 5205 | if (ent != NULL && ent->plt.refcount > 0) |
a6aa5195 | 5206 | ent->plt.refcount -= 1; |
25dbc73a AM |
5207 | } |
5208 | break; | |
ee05f2fe | 5209 | |
25dbc73a AM |
5210 | default: |
5211 | break; | |
5212 | } | |
7fce784e | 5213 | } |
7fce784e AS |
5214 | return TRUE; |
5215 | } | |
25dbc73a | 5216 | \f |
3a71aa26 AM |
5217 | /* Set plt output section type, htab->tls_get_addr, and call the |
5218 | generic ELF tls_setup function. */ | |
7fce784e | 5219 | |
25dbc73a | 5220 | asection * |
5446cbdf | 5221 | ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
7fce784e | 5222 | { |
25dbc73a | 5223 | struct ppc_elf_link_hash_table *htab; |
7fce784e | 5224 | |
25dbc73a | 5225 | htab = ppc_elf_hash_table (info); |
a7f2871e AM |
5226 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
5227 | FALSE, FALSE, TRUE); | |
f01f1741 AM |
5228 | if (htab->plt_type != PLT_NEW) |
5229 | htab->params->no_tls_get_addr_opt = TRUE; | |
5230 | ||
5446cbdf | 5231 | if (!htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
5232 | { |
5233 | struct elf_link_hash_entry *opt, *tga; | |
5234 | opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
5235 | FALSE, FALSE, TRUE); | |
5236 | if (opt != NULL | |
5237 | && (opt->root.type == bfd_link_hash_defined | |
5238 | || opt->root.type == bfd_link_hash_defweak)) | |
5239 | { | |
5240 | /* If glibc supports an optimized __tls_get_addr call stub, | |
5241 | signalled by the presence of __tls_get_addr_opt, and we'll | |
5242 | be calling __tls_get_addr via a plt call stub, then | |
5243 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
5244 | tga = htab->tls_get_addr; | |
5245 | if (htab->elf.dynamic_sections_created | |
5246 | && tga != NULL | |
5247 | && (tga->type == STT_FUNC | |
5248 | || tga->needs_plt) | |
5249 | && !(SYMBOL_CALLS_LOCAL (info, tga) | |
5250 | || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT | |
5251 | && tga->root.type == bfd_link_hash_undefweak))) | |
5252 | { | |
5253 | struct plt_entry *ent; | |
32af9f6e AM |
5254 | for (ent = tga->plt.plist; ent != NULL; ent = ent->next) |
5255 | if (ent->plt.refcount > 0) | |
5256 | break; | |
5257 | if (ent != NULL) | |
a7f2871e AM |
5258 | { |
5259 | tga->root.type = bfd_link_hash_indirect; | |
5260 | tga->root.u.i.link = &opt->root; | |
5261 | ppc_elf_copy_indirect_symbol (info, opt, tga); | |
3bd43ebc | 5262 | opt->forced_local = 0; |
a7f2871e AM |
5263 | if (opt->dynindx != -1) |
5264 | { | |
5265 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
5266 | opt->dynindx = -1; | |
5267 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
5268 | opt->dynstr_index); | |
5269 | if (!bfd_elf_link_record_dynamic_symbol (info, opt)) | |
5270 | return FALSE; | |
5271 | } | |
5272 | htab->tls_get_addr = opt; | |
5273 | } | |
5274 | } | |
5275 | } | |
5276 | else | |
5446cbdf | 5277 | htab->params->no_tls_get_addr_opt = TRUE; |
a7f2871e | 5278 | } |
4a3dc543 | 5279 | if (htab->plt_type == PLT_NEW |
d7128ce4 AM |
5280 | && htab->plt != NULL |
5281 | && htab->plt->output_section != NULL) | |
5282 | { | |
5283 | elf_section_type (htab->plt->output_section) = SHT_PROGBITS; | |
5284 | elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; | |
5285 | } | |
5286 | ||
25dbc73a | 5287 | return _bfd_elf_tls_setup (obfd, info); |
7fce784e AS |
5288 | } |
5289 | ||
3a71aa26 AM |
5290 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
5291 | HASH. */ | |
5292 | ||
5293 | static bfd_boolean | |
5294 | branch_reloc_hash_match (const bfd *ibfd, | |
5295 | const Elf_Internal_Rela *rel, | |
5296 | const struct elf_link_hash_entry *hash) | |
5297 | { | |
5298 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
5299 | enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); | |
5300 | unsigned int r_symndx = ELF32_R_SYM (rel->r_info); | |
5301 | ||
e054468f | 5302 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
3a71aa26 AM |
5303 | { |
5304 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5305 | struct elf_link_hash_entry *h; | |
5306 | ||
5307 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5308 | while (h->root.type == bfd_link_hash_indirect | |
5309 | || h->root.type == bfd_link_hash_warning) | |
5310 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5311 | if (h == hash) | |
5312 | return TRUE; | |
5313 | } | |
5314 | return FALSE; | |
5315 | } | |
5316 | ||
25dbc73a AM |
5317 | /* Run through all the TLS relocs looking for optimization |
5318 | opportunities. */ | |
252b5132 | 5319 | |
25dbc73a AM |
5320 | bfd_boolean |
5321 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, | |
5322 | struct bfd_link_info *info) | |
252b5132 | 5323 | { |
7fce784e | 5324 | bfd *ibfd; |
25dbc73a AM |
5325 | asection *sec; |
5326 | struct ppc_elf_link_hash_table *htab; | |
b7fcf6f6 | 5327 | int pass; |
252b5132 | 5328 | |
3cbc1e5e | 5329 | if (!bfd_link_executable (info)) |
25dbc73a | 5330 | return TRUE; |
252b5132 | 5331 | |
7619e7c7 | 5332 | htab = ppc_elf_hash_table (info); |
663a1470 AM |
5333 | if (htab == NULL) |
5334 | return FALSE; | |
5335 | ||
b7fcf6f6 AM |
5336 | /* Make two passes through the relocs. First time check that tls |
5337 | relocs involved in setting up a tls_get_addr call are indeed | |
663a1470 AM |
5338 | followed by such a call. If they are not, don't do any tls |
5339 | optimization. On the second pass twiddle tls_mask flags to | |
5340 | notify relocate_section that optimization can be done, and | |
5341 | adjust got and plt refcounts. */ | |
b7fcf6f6 | 5342 | for (pass = 0; pass < 2; ++pass) |
c72f2fb2 | 5343 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
b7fcf6f6 AM |
5344 | { |
5345 | Elf_Internal_Sym *locsyms = NULL; | |
0ffa91dd | 5346 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
32af9f6e | 5347 | asection *got2 = bfd_get_section_by_name (ibfd, ".got2"); |
7619e7c7 | 5348 | |
b7fcf6f6 AM |
5349 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
5350 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5351 | { | |
5352 | Elf_Internal_Rela *relstart, *rel, *relend; | |
663a1470 | 5353 | int expecting_tls_get_addr = 0; |
252b5132 | 5354 | |
b7fcf6f6 AM |
5355 | /* Read the relocations. */ |
5356 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
5357 | info->keep_memory); | |
5358 | if (relstart == NULL) | |
5359 | return FALSE; | |
7619e7c7 | 5360 | |
b7fcf6f6 AM |
5361 | relend = relstart + sec->reloc_count; |
5362 | for (rel = relstart; rel < relend; rel++) | |
5363 | { | |
5364 | enum elf_ppc_reloc_type r_type; | |
5365 | unsigned long r_symndx; | |
5366 | struct elf_link_hash_entry *h = NULL; | |
5367 | char *tls_mask; | |
5368 | char tls_set, tls_clear; | |
5369 | bfd_boolean is_local; | |
b7fcf6f6 AM |
5370 | bfd_signed_vma *got_count; |
5371 | ||
5372 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5373 | if (r_symndx >= symtab_hdr->sh_info) | |
5374 | { | |
5375 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 5376 | |
b7fcf6f6 AM |
5377 | sym_hashes = elf_sym_hashes (ibfd); |
5378 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5379 | while (h->root.type == bfd_link_hash_indirect | |
5380 | || h->root.type == bfd_link_hash_warning) | |
5381 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5382 | } | |
7619e7c7 | 5383 | |
b7fcf6f6 AM |
5384 | is_local = FALSE; |
5385 | if (h == NULL | |
5386 | || !h->def_dynamic) | |
5387 | is_local = TRUE; | |
7619e7c7 | 5388 | |
b7fcf6f6 | 5389 | r_type = ELF32_R_TYPE (rel->r_info); |
663a1470 AM |
5390 | /* If this section has old-style __tls_get_addr calls |
5391 | without marker relocs, then check that each | |
5392 | __tls_get_addr call reloc is preceded by a reloc | |
5393 | that conceivably belongs to the __tls_get_addr arg | |
5394 | setup insn. If we don't find matching arg setup | |
5395 | relocs, don't do any tls optimization. */ | |
5396 | if (pass == 0 | |
5397 | && sec->has_tls_get_addr_call | |
5398 | && h != NULL | |
5399 | && h == htab->tls_get_addr | |
5400 | && !expecting_tls_get_addr | |
5401 | && is_branch_reloc (r_type)) | |
5402 | { | |
25f53a85 | 5403 | info->callbacks->minfo ("%H __tls_get_addr lost arg, " |
663a1470 AM |
5404 | "TLS optimization disabled\n", |
5405 | ibfd, sec, rel->r_offset); | |
5406 | if (elf_section_data (sec)->relocs != relstart) | |
5407 | free (relstart); | |
5408 | return TRUE; | |
5409 | } | |
5410 | ||
5411 | expecting_tls_get_addr = 0; | |
b7fcf6f6 AM |
5412 | switch (r_type) |
5413 | { | |
5414 | case R_PPC_GOT_TLSLD16: | |
5415 | case R_PPC_GOT_TLSLD16_LO: | |
5416 | expecting_tls_get_addr = 1; | |
1a0670f3 | 5417 | /* Fall through. */ |
b7fcf6f6 AM |
5418 | |
5419 | case R_PPC_GOT_TLSLD16_HI: | |
5420 | case R_PPC_GOT_TLSLD16_HA: | |
5421 | /* These relocs should never be against a symbol | |
5422 | defined in a shared lib. Leave them alone if | |
5423 | that turns out to be the case. */ | |
5424 | if (!is_local) | |
5425 | continue; | |
5426 | ||
5427 | /* LD -> LE */ | |
5428 | tls_set = 0; | |
5429 | tls_clear = TLS_LD; | |
5430 | break; | |
5431 | ||
5432 | case R_PPC_GOT_TLSGD16: | |
5433 | case R_PPC_GOT_TLSGD16_LO: | |
5434 | expecting_tls_get_addr = 1; | |
1a0670f3 | 5435 | /* Fall through. */ |
b7fcf6f6 AM |
5436 | |
5437 | case R_PPC_GOT_TLSGD16_HI: | |
5438 | case R_PPC_GOT_TLSGD16_HA: | |
5439 | if (is_local) | |
5440 | /* GD -> LE */ | |
5441 | tls_set = 0; | |
5442 | else | |
5443 | /* GD -> IE */ | |
5444 | tls_set = TLS_TLS | TLS_TPRELGD; | |
5445 | tls_clear = TLS_GD; | |
5446 | break; | |
5447 | ||
5448 | case R_PPC_GOT_TPREL16: | |
5449 | case R_PPC_GOT_TPREL16_LO: | |
5450 | case R_PPC_GOT_TPREL16_HI: | |
5451 | case R_PPC_GOT_TPREL16_HA: | |
5452 | if (is_local) | |
5453 | { | |
5454 | /* IE -> LE */ | |
5455 | tls_set = 0; | |
5456 | tls_clear = TLS_TPREL; | |
5457 | break; | |
5458 | } | |
5459 | else | |
5460 | continue; | |
5461 | ||
32af9f6e AM |
5462 | case R_PPC_TLSGD: |
5463 | case R_PPC_TLSLD: | |
5464 | expecting_tls_get_addr = 2; | |
5465 | tls_set = 0; | |
5466 | tls_clear = 0; | |
5467 | break; | |
5468 | ||
b7fcf6f6 | 5469 | default: |
25dbc73a | 5470 | continue; |
b7fcf6f6 | 5471 | } |
25dbc73a | 5472 | |
b7fcf6f6 AM |
5473 | if (pass == 0) |
5474 | { | |
727fc41e | 5475 | if (!expecting_tls_get_addr |
32af9f6e AM |
5476 | || (expecting_tls_get_addr == 1 |
5477 | && !sec->has_tls_get_addr_call)) | |
b7fcf6f6 | 5478 | continue; |
25dbc73a | 5479 | |
3a71aa26 AM |
5480 | if (rel + 1 < relend |
5481 | && branch_reloc_hash_match (ibfd, rel + 1, | |
5482 | htab->tls_get_addr)) | |
5483 | continue; | |
25dbc73a | 5484 | |
b7fcf6f6 AM |
5485 | /* Uh oh, we didn't find the expected call. We |
5486 | could just mark this symbol to exclude it | |
5487 | from tls optimization but it's safer to skip | |
663a1470 | 5488 | the entire optimization. */ |
25f53a85 | 5489 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
663a1470 AM |
5490 | "TLS optimization disabled\n"), |
5491 | ibfd, sec, rel->r_offset); | |
5492 | if (elf_section_data (sec)->relocs != relstart) | |
5493 | free (relstart); | |
5494 | return TRUE; | |
b7fcf6f6 | 5495 | } |
25dbc73a | 5496 | |
32af9f6e AM |
5497 | if (expecting_tls_get_addr) |
5498 | { | |
5499 | struct plt_entry *ent; | |
5500 | bfd_vma addend = 0; | |
5501 | ||
0e1862bb | 5502 | if (bfd_link_pic (info) |
32af9f6e AM |
5503 | && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24) |
5504 | addend = rel[1].r_addend; | |
5505 | ent = find_plt_ent (&htab->tls_get_addr->plt.plist, | |
5506 | got2, addend); | |
5507 | if (ent != NULL && ent->plt.refcount > 0) | |
5508 | ent->plt.refcount -= 1; | |
5509 | ||
5510 | if (expecting_tls_get_addr == 2) | |
5511 | continue; | |
5512 | } | |
5513 | ||
b7fcf6f6 AM |
5514 | if (h != NULL) |
5515 | { | |
5516 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
5517 | got_count = &h->got.refcount; | |
5518 | } | |
5519 | else | |
5520 | { | |
b7fcf6f6 | 5521 | bfd_signed_vma *lgot_refs; |
e054468f | 5522 | struct plt_entry **local_plt; |
b7fcf6f6 | 5523 | char *lgot_masks; |
25dbc73a | 5524 | |
b7fcf6f6 AM |
5525 | if (locsyms == NULL) |
5526 | { | |
5527 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5528 | if (locsyms == NULL) | |
5529 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5530 | symtab_hdr->sh_info, | |
5531 | 0, NULL, NULL, NULL); | |
5532 | if (locsyms == NULL) | |
5533 | { | |
5534 | if (elf_section_data (sec)->relocs != relstart) | |
5535 | free (relstart); | |
5536 | return FALSE; | |
5537 | } | |
5538 | } | |
b7fcf6f6 AM |
5539 | lgot_refs = elf_local_got_refcounts (ibfd); |
5540 | if (lgot_refs == NULL) | |
5541 | abort (); | |
e054468f AM |
5542 | local_plt = (struct plt_entry **) |
5543 | (lgot_refs + symtab_hdr->sh_info); | |
5544 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
b7fcf6f6 AM |
5545 | tls_mask = &lgot_masks[r_symndx]; |
5546 | got_count = &lgot_refs[r_symndx]; | |
5547 | } | |
25dbc73a | 5548 | |
b7fcf6f6 AM |
5549 | if (tls_set == 0) |
5550 | { | |
5551 | /* We managed to get rid of a got entry. */ | |
5552 | if (*got_count > 0) | |
5553 | *got_count -= 1; | |
5554 | } | |
25dbc73a | 5555 | |
b7fcf6f6 AM |
5556 | *tls_mask |= tls_set; |
5557 | *tls_mask &= ~tls_clear; | |
5558 | } | |
25dbc73a | 5559 | |
b7fcf6f6 AM |
5560 | if (elf_section_data (sec)->relocs != relstart) |
5561 | free (relstart); | |
5562 | } | |
5563 | ||
5564 | if (locsyms != NULL | |
5565 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
5566 | { | |
5567 | if (!info->keep_memory) | |
5568 | free (locsyms); | |
5569 | else | |
5570 | symtab_hdr->contents = (unsigned char *) locsyms; | |
5571 | } | |
5572 | } | |
25dbc73a AM |
5573 | return TRUE; |
5574 | } | |
5575 | \f | |
625af618 AM |
5576 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
5577 | ||
5578 | static bfd_boolean | |
5579 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
5580 | { | |
6061a67d | 5581 | struct elf_dyn_relocs *p; |
625af618 AM |
5582 | |
5583 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
5584 | { | |
5585 | asection *s = p->sec->output_section; | |
5586 | ||
5587 | if (s != NULL | |
5588 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
5589 | == (SEC_READONLY | SEC_ALLOC))) | |
5590 | return TRUE; | |
5591 | } | |
5592 | return FALSE; | |
5593 | } | |
5594 | ||
25dbc73a AM |
5595 | /* Adjust a symbol defined by a dynamic object and referenced by a |
5596 | regular object. The current definition is in some section of the | |
5597 | dynamic object, but we're not including those sections. We have to | |
5598 | change the definition to something the rest of the link can | |
5599 | understand. */ | |
7fce784e | 5600 | |
25dbc73a AM |
5601 | static bfd_boolean |
5602 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
5603 | struct elf_link_hash_entry *h) | |
5604 | { | |
5605 | struct ppc_elf_link_hash_table *htab; | |
5606 | asection *s; | |
7fce784e | 5607 | |
25dbc73a AM |
5608 | #ifdef DEBUG |
5609 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", | |
5610 | h->root.root.string); | |
5611 | #endif | |
252b5132 | 5612 | |
25dbc73a AM |
5613 | /* Make sure we know what is going on here. */ |
5614 | htab = ppc_elf_hash_table (info); | |
5615 | BFD_ASSERT (htab->elf.dynobj != NULL | |
5616 | && (h->needs_plt | |
91e21fb7 | 5617 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5618 | || h->u.weakdef != NULL |
5619 | || (h->def_dynamic | |
5620 | && h->ref_regular | |
5621 | && !h->def_regular))); | |
252b5132 | 5622 | |
25dbc73a AM |
5623 | /* Deal with function syms. */ |
5624 | if (h->type == STT_FUNC | |
e054468f | 5625 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5626 | || h->needs_plt) |
5627 | { | |
5628 | /* Clear procedure linkage table information for any symbol that | |
5629 | won't need a .plt entry. */ | |
a6aa5195 AM |
5630 | struct plt_entry *ent; |
5631 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5632 | if (ent->plt.refcount > 0) | |
5633 | break; | |
5634 | if (ent == NULL | |
e054468f AM |
5635 | || (h->type != STT_GNU_IFUNC |
5636 | && (SYMBOL_CALLS_LOCAL (info, h) | |
5637 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5638 | && h->root.type == bfd_link_hash_undefweak)))) | |
252b5132 | 5639 | { |
25dbc73a | 5640 | /* A PLT entry is not required/allowed when: |
252b5132 | 5641 | |
25dbc73a AM |
5642 | 1. We are not using ld.so; because then the PLT entry |
5643 | can't be set up, so we can't use one. In this case, | |
5644 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 5645 | |
25dbc73a AM |
5646 | 2. GC has rendered the entry unused. |
5647 | ||
5648 | 3. We know for certain that a call to this symbol | |
5649 | will go to this object, or will remain undefined. */ | |
a6aa5195 | 5650 | h->plt.plist = NULL; |
25dbc73a | 5651 | h->needs_plt = 0; |
d1eca1e4 | 5652 | h->pointer_equality_needed = 0; |
25dbc73a | 5653 | } |
625af618 AM |
5654 | else |
5655 | { | |
d1eca1e4 AM |
5656 | /* Taking a function's address in a read/write section |
5657 | doesn't require us to define the function symbol in the | |
1009ef28 | 5658 | executable on a plt call stub. A dynamic reloc can |
d1eca1e4 AM |
5659 | be used instead. */ |
5660 | if (h->pointer_equality_needed | |
1009ef28 AM |
5661 | && h->type != STT_GNU_IFUNC |
5662 | && !htab->is_vxworks | |
5663 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
d1eca1e4 AM |
5664 | && !readonly_dynrelocs (h)) |
5665 | { | |
5666 | h->pointer_equality_needed = 0; | |
5667 | h->non_got_ref = 0; | |
5668 | } | |
5669 | ||
25f23106 AM |
5670 | /* After adjust_dynamic_symbol, non_got_ref set in the |
5671 | non-shared case means that we have allocated space in | |
5672 | .dynbss for the symbol and thus dyn_relocs for this | |
5673 | symbol should be discarded. | |
625af618 AM |
5674 | If we get here we know we are making a PLT entry for this |
5675 | symbol, and in an executable we'd normally resolve | |
5676 | relocations against this symbol to the PLT entry. Allow | |
5677 | dynamic relocs if the reference is weak, and the dynamic | |
5678 | relocs will not cause text relocation. */ | |
d1eca1e4 AM |
5679 | else if (!h->ref_regular_nonweak |
5680 | && h->non_got_ref | |
5681 | && h->type != STT_GNU_IFUNC | |
5682 | && !htab->is_vxworks | |
5683 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
5684 | && !readonly_dynrelocs (h)) | |
625af618 AM |
5685 | h->non_got_ref = 0; |
5686 | } | |
d3e454b9 | 5687 | h->protected_def = 0; |
25dbc73a | 5688 | return TRUE; |
252b5132 | 5689 | } |
25dbc73a | 5690 | else |
a6aa5195 | 5691 | h->plt.plist = NULL; |
252b5132 | 5692 | |
25dbc73a AM |
5693 | /* If this is a weak symbol, and there is a real definition, the |
5694 | processor independent code will have arranged for us to see the | |
5695 | real definition first, and we can just use the same value. */ | |
5696 | if (h->u.weakdef != NULL) | |
252b5132 | 5697 | { |
25dbc73a AM |
5698 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5699 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5700 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5701 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
5702 | if (ELIMINATE_COPY_RELOCS) | |
5703 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
5704 | return TRUE; | |
5705 | } | |
dc810e39 | 5706 | |
25dbc73a AM |
5707 | /* This is a reference to a symbol defined by a dynamic object which |
5708 | is not a function. */ | |
252b5132 | 5709 | |
25dbc73a AM |
5710 | /* If we are creating a shared library, we must presume that the |
5711 | only references to the symbol are via the global offset table. | |
5712 | For such cases we need not do anything here; the relocations will | |
5713 | be handled correctly by relocate_section. */ | |
0e1862bb | 5714 | if (bfd_link_pic (info)) |
d3e454b9 AM |
5715 | { |
5716 | h->protected_def = 0; | |
5717 | return TRUE; | |
5718 | } | |
252b5132 | 5719 | |
25dbc73a AM |
5720 | /* If there are no references to this symbol that do not use the |
5721 | GOT, we don't need to generate a copy reloc. */ | |
5722 | if (!h->non_got_ref) | |
d3e454b9 AM |
5723 | { |
5724 | h->protected_def = 0; | |
5725 | return TRUE; | |
5726 | } | |
5727 | ||
5728 | /* Protected variables do not work with .dynbss. The copy in | |
5729 | .dynbss won't be used by the shared library with the protected | |
5730 | definition for the variable. Editing to PIC, or text relocations | |
5731 | are preferable to an incorrect program. */ | |
5732 | if (h->protected_def) | |
5733 | { | |
5734 | if (ELIMINATE_COPY_RELOCS | |
5735 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
5736 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
5737 | && htab->params->pic_fixup == 0 | |
5738 | && info->disable_target_specific_optimizations <= 1) | |
5739 | htab->params->pic_fixup = 1; | |
5740 | h->non_got_ref = 0; | |
5741 | return TRUE; | |
5742 | } | |
25dbc73a | 5743 | |
a127494f AM |
5744 | /* If -z nocopyreloc was given, we won't generate them either. */ |
5745 | if (info->nocopyreloc) | |
5746 | { | |
5747 | h->non_got_ref = 0; | |
5748 | return TRUE; | |
5749 | } | |
5750 | ||
cfd2c773 NS |
5751 | /* If we didn't find any dynamic relocs in read-only sections, then |
5752 | we'll be keeping the dynamic relocs and avoiding the copy reloc. | |
5753 | We can't do this if there are any small data relocations. This | |
5754 | doesn't work on VxWorks, where we can not have dynamic | |
5755 | relocations (other than copy and jump slot relocations) in an | |
5756 | executable. */ | |
4dc4a9a5 | 5757 | if (ELIMINATE_COPY_RELOCS |
cfd2c773 | 5758 | && !ppc_elf_hash_entry (h)->has_sda_refs |
625af618 AM |
5759 | && !htab->is_vxworks |
5760 | && !h->def_regular | |
5761 | && !readonly_dynrelocs (h)) | |
25dbc73a | 5762 | { |
625af618 AM |
5763 | h->non_got_ref = 0; |
5764 | return TRUE; | |
252b5132 RH |
5765 | } |
5766 | ||
25dbc73a AM |
5767 | /* We must allocate the symbol in our .dynbss section, which will |
5768 | become part of the .bss section of the executable. There will be | |
5769 | an entry for this symbol in the .dynsym section. The dynamic | |
5770 | object will contain position independent code, so all references | |
5771 | from the dynamic object to this symbol will go through the global | |
5772 | offset table. The dynamic linker will use the .dynsym entry to | |
5773 | determine the address it must put in the global offset table, so | |
5774 | both the dynamic object and the regular object will refer to the | |
5775 | same memory location for the variable. | |
5776 | ||
4dc4a9a5 DJ |
5777 | Of course, if the symbol is referenced using SDAREL relocs, we |
5778 | must instead allocate it in .sbss. */ | |
25dbc73a | 5779 | |
4dc4a9a5 | 5780 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5781 | s = htab->dynsbss; |
5782 | else | |
5783 | s = htab->dynbss; | |
5784 | BFD_ASSERT (s != NULL); | |
5785 | ||
5786 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
5787 | copy the initial value out of the dynamic object and into the | |
5788 | runtime process image. We need to remember the offset into the | |
5789 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 5790 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
25dbc73a AM |
5791 | { |
5792 | asection *srel; | |
5793 | ||
4dc4a9a5 | 5794 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5795 | srel = htab->relsbss; |
5796 | else | |
5797 | srel = htab->relbss; | |
5798 | BFD_ASSERT (srel != NULL); | |
5799 | srel->size += sizeof (Elf32_External_Rela); | |
5800 | h->needs_copy = 1; | |
5801 | } | |
7619e7c7 | 5802 | |
6cabe1ea | 5803 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
25dbc73a AM |
5804 | } |
5805 | \f | |
ac39eb42 AM |
5806 | /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is |
5807 | xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, | |
5808 | specifying the addend on the plt relocation. For -fpic code, the sym | |
5809 | is xxxxxxxx.plt_pic32.<callee>, and for -fPIC | |
5810 | xxxxxxxx.got2.plt_pic32.<callee>. */ | |
0ba07910 AM |
5811 | |
5812 | static bfd_boolean | |
5813 | add_stub_sym (struct plt_entry *ent, | |
5814 | struct elf_link_hash_entry *h, | |
ac39eb42 | 5815 | struct bfd_link_info *info) |
0ba07910 AM |
5816 | { |
5817 | struct elf_link_hash_entry *sh; | |
5818 | size_t len1, len2, len3; | |
5819 | char *name; | |
ac39eb42 AM |
5820 | const char *stub; |
5821 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
5822 | ||
0e1862bb | 5823 | if (bfd_link_pic (info)) |
ac39eb42 AM |
5824 | stub = ".plt_pic32."; |
5825 | else | |
5826 | stub = ".plt_call32."; | |
0ba07910 AM |
5827 | |
5828 | len1 = strlen (h->root.root.string); | |
ac39eb42 | 5829 | len2 = strlen (stub); |
0ba07910 AM |
5830 | len3 = 0; |
5831 | if (ent->sec) | |
5832 | len3 = strlen (ent->sec->name); | |
ac39eb42 | 5833 | name = bfd_malloc (len1 + len2 + len3 + 9); |
0ba07910 AM |
5834 | if (name == NULL) |
5835 | return FALSE; | |
5836 | sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); | |
5837 | if (ent->sec) | |
5838 | memcpy (name + 8, ent->sec->name, len3); | |
ac39eb42 AM |
5839 | memcpy (name + 8 + len3, stub, len2); |
5840 | memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); | |
0ba07910 AM |
5841 | sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); |
5842 | if (sh == NULL) | |
5843 | return FALSE; | |
5844 | if (sh->root.type == bfd_link_hash_new) | |
5845 | { | |
5846 | sh->root.type = bfd_link_hash_defined; | |
5847 | sh->root.u.def.section = htab->glink; | |
5848 | sh->root.u.def.value = ent->glink_offset; | |
5849 | sh->ref_regular = 1; | |
5850 | sh->def_regular = 1; | |
5851 | sh->ref_regular_nonweak = 1; | |
5852 | sh->forced_local = 1; | |
5853 | sh->non_elf = 0; | |
2ec55de3 | 5854 | sh->root.linker_def = 1; |
0ba07910 AM |
5855 | } |
5856 | return TRUE; | |
5857 | } | |
5858 | ||
3b36f7e6 AM |
5859 | /* Allocate NEED contiguous space in .got, and return the offset. |
5860 | Handles allocation of the got header when crossing 32k. */ | |
5861 | ||
5862 | static bfd_vma | |
5863 | allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) | |
5864 | { | |
5865 | bfd_vma where; | |
4a3dc543 | 5866 | unsigned int max_before_header; |
3b36f7e6 | 5867 | |
4a3dc543 | 5868 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
5869 | { |
5870 | where = htab->got->size; | |
5871 | htab->got->size += need; | |
5872 | } | |
3b36f7e6 AM |
5873 | else |
5874 | { | |
4a3dc543 RS |
5875 | max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; |
5876 | if (need <= htab->got_gap) | |
3b36f7e6 | 5877 | { |
4a3dc543 RS |
5878 | where = max_before_header - htab->got_gap; |
5879 | htab->got_gap -= need; | |
5880 | } | |
5881 | else | |
5882 | { | |
5883 | if (htab->got->size + need > max_before_header | |
5884 | && htab->got->size <= max_before_header) | |
5885 | { | |
5886 | htab->got_gap = max_before_header - htab->got->size; | |
5887 | htab->got->size = max_before_header + htab->got_header_size; | |
5888 | } | |
5889 | where = htab->got->size; | |
5890 | htab->got->size += need; | |
3b36f7e6 | 5891 | } |
3b36f7e6 AM |
5892 | } |
5893 | return where; | |
5894 | } | |
5895 | ||
25dbc73a | 5896 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
252b5132 | 5897 | |
b34976b6 | 5898 | static bfd_boolean |
25dbc73a | 5899 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
252b5132 | 5900 | { |
25dbc73a AM |
5901 | struct bfd_link_info *info = inf; |
5902 | struct ppc_elf_link_hash_entry *eh; | |
7619e7c7 | 5903 | struct ppc_elf_link_hash_table *htab; |
6061a67d | 5904 | struct elf_dyn_relocs *p; |
252b5132 | 5905 | |
25dbc73a | 5906 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5907 | return TRUE; |
252b5132 | 5908 | |
7619e7c7 | 5909 | htab = ppc_elf_hash_table (info); |
e054468f AM |
5910 | if (htab->elf.dynamic_sections_created |
5911 | || h->type == STT_GNU_IFUNC) | |
252b5132 | 5912 | { |
a6aa5195 AM |
5913 | struct plt_entry *ent; |
5914 | bfd_boolean doneone = FALSE; | |
28e99bb6 | 5915 | bfd_vma plt_offset = 0, glink_offset = 0; |
e054468f | 5916 | bfd_boolean dyn; |
28e99bb6 | 5917 | |
a6aa5195 AM |
5918 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5919 | if (ent->plt.refcount > 0) | |
5920 | { | |
5921 | /* Make sure this symbol is output as a dynamic symbol. */ | |
5922 | if (h->dynindx == -1 | |
e054468f AM |
5923 | && !h->forced_local |
5924 | && !h->def_regular | |
5925 | && htab->elf.dynamic_sections_created) | |
a6aa5195 AM |
5926 | { |
5927 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5928 | return FALSE; | |
5929 | } | |
252b5132 | 5930 | |
e054468f | 5931 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 5932 | if (bfd_link_pic (info) |
e054468f AM |
5933 | || h->type == STT_GNU_IFUNC |
5934 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
a6aa5195 AM |
5935 | { |
5936 | asection *s = htab->plt; | |
25f23106 | 5937 | if (!dyn || h->dynindx == -1) |
e054468f | 5938 | s = htab->iplt; |
7619e7c7 | 5939 | |
25f23106 | 5940 | if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1) |
a6aa5195 | 5941 | { |
a6aa5195 | 5942 | if (!doneone) |
28e99bb6 AM |
5943 | { |
5944 | plt_offset = s->size; | |
5945 | s->size += 4; | |
5946 | } | |
5947 | ent->plt.offset = plt_offset; | |
d7128ce4 | 5948 | |
a6aa5195 | 5949 | s = htab->glink; |
0e1862bb | 5950 | if (!doneone || bfd_link_pic (info)) |
28e99bb6 AM |
5951 | { |
5952 | glink_offset = s->size; | |
5953 | s->size += GLINK_ENTRY_SIZE; | |
a7f2871e | 5954 | if (h == htab->tls_get_addr |
5446cbdf | 5955 | && !htab->params->no_tls_get_addr_opt) |
a7f2871e | 5956 | s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE; |
28e99bb6 AM |
5957 | } |
5958 | if (!doneone | |
0e1862bb | 5959 | && !bfd_link_pic (info) |
625af618 | 5960 | && h->def_dynamic |
a6aa5195 AM |
5961 | && !h->def_regular) |
5962 | { | |
5963 | h->root.u.def.section = s; | |
28e99bb6 | 5964 | h->root.u.def.value = glink_offset; |
a6aa5195 | 5965 | } |
28e99bb6 | 5966 | ent->glink_offset = glink_offset; |
0ba07910 | 5967 | |
5446cbdf | 5968 | if (htab->params->emit_stub_syms |
ac39eb42 | 5969 | && !add_stub_sym (ent, h, info)) |
0ba07910 | 5970 | return FALSE; |
a6aa5195 AM |
5971 | } |
5972 | else | |
5973 | { | |
a6aa5195 AM |
5974 | if (!doneone) |
5975 | { | |
28e99bb6 AM |
5976 | /* If this is the first .plt entry, make room |
5977 | for the special first entry. */ | |
5978 | if (s->size == 0) | |
9d8504b1 | 5979 | s->size += htab->plt_initial_entry_size; |
28e99bb6 AM |
5980 | |
5981 | /* The PowerPC PLT is actually composed of two | |
5982 | parts, the first part is 2 words (for a load | |
5983 | and a jump), and then there is a remaining | |
5984 | word available at the end. */ | |
9d8504b1 PB |
5985 | plt_offset = (htab->plt_initial_entry_size |
5986 | + (htab->plt_slot_size | |
5987 | * ((s->size | |
5988 | - htab->plt_initial_entry_size) | |
5989 | / htab->plt_entry_size))); | |
28e99bb6 AM |
5990 | |
5991 | /* If this symbol is not defined in a regular | |
5992 | file, and we are not generating a shared | |
5b914448 | 5993 | library, then set the symbol to this location |
de972ffa AM |
5994 | in the .plt. This is to avoid text |
5995 | relocations, and is required to make | |
28e99bb6 AM |
5996 | function pointers compare as equal between |
5997 | the normal executable and the shared library. */ | |
0e1862bb | 5998 | if (! bfd_link_pic (info) |
625af618 | 5999 | && h->def_dynamic |
28e99bb6 AM |
6000 | && !h->def_regular) |
6001 | { | |
6002 | h->root.u.def.section = s; | |
6003 | h->root.u.def.value = plt_offset; | |
6004 | } | |
6005 | ||
9d8504b1 PB |
6006 | /* Make room for this entry. */ |
6007 | s->size += htab->plt_entry_size; | |
6008 | /* After the 8192nd entry, room for two entries | |
6009 | is allocated. */ | |
4a3dc543 | 6010 | if (htab->plt_type == PLT_OLD |
9d8504b1 PB |
6011 | && (s->size - htab->plt_initial_entry_size) |
6012 | / htab->plt_entry_size | |
6013 | > PLT_NUM_SINGLE_ENTRIES) | |
6014 | s->size += htab->plt_entry_size; | |
a6aa5195 | 6015 | } |
28e99bb6 | 6016 | ent->plt.offset = plt_offset; |
a6aa5195 | 6017 | } |
25dbc73a | 6018 | |
a6aa5195 AM |
6019 | /* We also need to make an entry in the .rela.plt section. */ |
6020 | if (!doneone) | |
6021 | { | |
25f23106 AM |
6022 | if (!htab->elf.dynamic_sections_created |
6023 | || h->dynindx == -1) | |
e054468f AM |
6024 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
6025 | else | |
9d8504b1 | 6026 | { |
e054468f AM |
6027 | htab->relplt->size += sizeof (Elf32_External_Rela); |
6028 | ||
6029 | if (htab->plt_type == PLT_VXWORKS) | |
9d8504b1 | 6030 | { |
e054468f | 6031 | /* Allocate space for the unloaded relocations. */ |
0e1862bb | 6032 | if (!bfd_link_pic (info) |
e054468f | 6033 | && htab->elf.dynamic_sections_created) |
9d8504b1 | 6034 | { |
e054468f AM |
6035 | if (ent->plt.offset |
6036 | == (bfd_vma) htab->plt_initial_entry_size) | |
6037 | { | |
6038 | htab->srelplt2->size | |
6039 | += (sizeof (Elf32_External_Rela) | |
6040 | * VXWORKS_PLTRESOLVE_RELOCS); | |
6041 | } | |
6042 | ||
9d8504b1 | 6043 | htab->srelplt2->size |
e054468f AM |
6044 | += (sizeof (Elf32_External_Rela) |
6045 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS); | |
9d8504b1 PB |
6046 | } |
6047 | ||
e054468f AM |
6048 | /* Every PLT entry has an associated GOT entry in |
6049 | .got.plt. */ | |
6050 | htab->sgotplt->size += 4; | |
9d8504b1 | 6051 | } |
9d8504b1 | 6052 | } |
a6aa5195 AM |
6053 | doneone = TRUE; |
6054 | } | |
6055 | } | |
6056 | else | |
6057 | ent->plt.offset = (bfd_vma) -1; | |
a6aa5195 | 6058 | } |
2ce859a1 AM |
6059 | else |
6060 | ent->plt.offset = (bfd_vma) -1; | |
6061 | ||
6062 | if (!doneone) | |
6063 | { | |
6064 | h->plt.plist = NULL; | |
6065 | h->needs_plt = 0; | |
6066 | } | |
25dbc73a AM |
6067 | } |
6068 | else | |
6069 | { | |
a6aa5195 | 6070 | h->plt.plist = NULL; |
25dbc73a AM |
6071 | h->needs_plt = 0; |
6072 | } | |
6073 | ||
6074 | eh = (struct ppc_elf_link_hash_entry *) h; | |
d3e454b9 AM |
6075 | if (eh->elf.got.refcount > 0 |
6076 | || (ELIMINATE_COPY_RELOCS | |
6077 | && !eh->elf.def_regular | |
6078 | && eh->elf.protected_def | |
6079 | && eh->has_addr16_ha | |
6080 | && eh->has_addr16_lo | |
6081 | && htab->params->pic_fixup > 0)) | |
25dbc73a | 6082 | { |
d6e14abc AM |
6083 | bfd_boolean dyn; |
6084 | unsigned int need; | |
6085 | ||
25dbc73a AM |
6086 | /* Make sure this symbol is output as a dynamic symbol. */ |
6087 | if (eh->elf.dynindx == -1 | |
b099ab9f | 6088 | && !eh->elf.forced_local |
25f23106 | 6089 | && eh->elf.type != STT_GNU_IFUNC |
b099ab9f | 6090 | && htab->elf.dynamic_sections_created) |
25dbc73a AM |
6091 | { |
6092 | if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) | |
b34976b6 | 6093 | return FALSE; |
25dbc73a | 6094 | } |
252b5132 | 6095 | |
d6e14abc AM |
6096 | need = 0; |
6097 | if ((eh->tls_mask & TLS_TLS) != 0) | |
25dbc73a | 6098 | { |
d6e14abc | 6099 | if ((eh->tls_mask & TLS_LD) != 0) |
252b5132 | 6100 | { |
d6e14abc AM |
6101 | if (!eh->elf.def_dynamic) |
6102 | /* We'll just use htab->tlsld_got.offset. This should | |
6103 | always be the case. It's a little odd if we have | |
6104 | a local dynamic reloc against a non-local symbol. */ | |
6105 | htab->tlsld_got.refcount += 1; | |
6106 | else | |
3b36f7e6 | 6107 | need += 8; |
252b5132 | 6108 | } |
d6e14abc AM |
6109 | if ((eh->tls_mask & TLS_GD) != 0) |
6110 | need += 8; | |
6111 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6112 | need += 4; | |
6113 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3b36f7e6 | 6114 | need += 4; |
d6e14abc AM |
6115 | } |
6116 | else | |
6117 | need += 4; | |
6118 | if (need == 0) | |
6119 | eh->elf.got.offset = (bfd_vma) -1; | |
6120 | else | |
6121 | { | |
3b36f7e6 | 6122 | eh->elf.got.offset = allocate_got (htab, need); |
25dbc73a | 6123 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 6124 | if ((bfd_link_pic (info) |
25dbc73a AM |
6125 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) |
6126 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
6127 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
252b5132 | 6128 | { |
91e21fb7 | 6129 | asection *rsec = htab->relgot; |
0bed072f AM |
6130 | |
6131 | if (eh->elf.type == STT_GNU_IFUNC) | |
6132 | rsec = htab->reliplt; | |
3b36f7e6 AM |
6133 | /* All the entries we allocated need relocs. |
6134 | Except LD only needs one. */ | |
d6e14abc AM |
6135 | if ((eh->tls_mask & TLS_LD) != 0 |
6136 | && eh->elf.def_dynamic) | |
3b36f7e6 | 6137 | need -= 4; |
25f23106 | 6138 | rsec->size += need * (sizeof (Elf32_External_Rela) / 4); |
252b5132 | 6139 | } |
25dbc73a AM |
6140 | } |
6141 | } | |
6142 | else | |
6143 | eh->elf.got.offset = (bfd_vma) -1; | |
252b5132 | 6144 | |
b099ab9f | 6145 | if (eh->dyn_relocs == NULL |
de972ffa | 6146 | || !htab->elf.dynamic_sections_created) |
25dbc73a | 6147 | return TRUE; |
252b5132 | 6148 | |
25dbc73a AM |
6149 | /* In the shared -Bsymbolic case, discard space allocated for |
6150 | dynamic pc-relative relocs against symbols which turn out to be | |
6151 | defined in regular objects. For the normal shared case, discard | |
6152 | space for relocs that have become local due to symbol visibility | |
6153 | changes. */ | |
6154 | ||
0e1862bb | 6155 | if (bfd_link_pic (info)) |
25dbc73a AM |
6156 | { |
6157 | /* Relocs that use pc_count are those that appear on a call insn, | |
1d483afe | 6158 | or certain REL relocs (see must_be_dyn_reloc) that can be |
25dbc73a AM |
6159 | generated via assembly. We want calls to protected symbols to |
6160 | resolve directly to the function rather than going via the plt. | |
6161 | If people want function pointer comparisons to work as expected | |
6162 | then they should avoid writing weird assembly. */ | |
6163 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
6164 | { | |
6061a67d | 6165 | struct elf_dyn_relocs **pp; |
25dbc73a AM |
6166 | |
6167 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
252b5132 | 6168 | { |
25dbc73a AM |
6169 | p->count -= p->pc_count; |
6170 | p->pc_count = 0; | |
6171 | if (p->count == 0) | |
6172 | *pp = p->next; | |
6173 | else | |
6174 | pp = &p->next; | |
252b5132 | 6175 | } |
25dbc73a | 6176 | } |
252b5132 | 6177 | |
3348747a NS |
6178 | if (htab->is_vxworks) |
6179 | { | |
6061a67d | 6180 | struct elf_dyn_relocs **pp; |
3348747a NS |
6181 | |
6182 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
6183 | { | |
6184 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
6185 | *pp = p->next; | |
6186 | else | |
6187 | pp = &p->next; | |
6188 | } | |
6189 | } | |
6190 | ||
89200bf8 AM |
6191 | /* Discard relocs on undefined symbols that must be local. */ |
6192 | if (eh->dyn_relocs != NULL | |
6193 | && h->root.type == bfd_link_hash_undefined | |
6194 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
6195 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
6196 | eh->dyn_relocs = NULL; | |
6197 | ||
25dbc73a AM |
6198 | /* Also discard relocs on undefined weak syms with non-default |
6199 | visibility. */ | |
cab87ef9 AM |
6200 | if (eh->dyn_relocs != NULL |
6201 | && h->root.type == bfd_link_hash_undefweak) | |
25dbc73a | 6202 | { |
dfbb6ac9 AM |
6203 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
6204 | eh->dyn_relocs = NULL; | |
6205 | ||
6206 | /* Make sure undefined weak symbols are output as a dynamic | |
6207 | symbol in PIEs. */ | |
6208 | else if (h->dynindx == -1 | |
e054468f AM |
6209 | && !h->forced_local |
6210 | && !h->def_regular) | |
dfbb6ac9 AM |
6211 | { |
6212 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6213 | return FALSE; | |
6214 | } | |
25dbc73a AM |
6215 | } |
6216 | } | |
6217 | else if (ELIMINATE_COPY_RELOCS) | |
6218 | { | |
6219 | /* For the non-shared case, discard space for relocs against | |
6220 | symbols which turn out to need copy relocs or are not | |
6221 | dynamic. */ | |
7619e7c7 | 6222 | |
25dbc73a | 6223 | if (!h->non_got_ref |
d3e454b9 AM |
6224 | && !h->def_regular |
6225 | && !(h->protected_def | |
6226 | && eh->has_addr16_ha | |
6227 | && eh->has_addr16_lo | |
6228 | && htab->params->pic_fixup > 0)) | |
25dbc73a AM |
6229 | { |
6230 | /* Make sure this symbol is output as a dynamic symbol. | |
6231 | Undefined weak syms won't yet be marked as dynamic. */ | |
6232 | if (h->dynindx == -1 | |
25f23106 | 6233 | && !h->forced_local) |
25dbc73a AM |
6234 | { |
6235 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6236 | return FALSE; | |
6237 | } | |
7619e7c7 | 6238 | |
25dbc73a AM |
6239 | /* If that succeeded, we know we'll be keeping all the |
6240 | relocs. */ | |
6241 | if (h->dynindx != -1) | |
6242 | goto keep; | |
6243 | } | |
252b5132 | 6244 | |
25dbc73a | 6245 | eh->dyn_relocs = NULL; |
252b5132 | 6246 | |
25dbc73a AM |
6247 | keep: ; |
6248 | } | |
252b5132 | 6249 | |
25dbc73a AM |
6250 | /* Finally, allocate space. */ |
6251 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
6252 | { | |
6253 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
f95f8542 | 6254 | if (eh->elf.type == STT_GNU_IFUNC) |
25f23106 | 6255 | sreloc = htab->reliplt; |
25dbc73a AM |
6256 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
6257 | } | |
252b5132 | 6258 | |
25dbc73a AM |
6259 | return TRUE; |
6260 | } | |
7619e7c7 | 6261 | |
625af618 AM |
6262 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
6263 | read-only sections. */ | |
7619e7c7 | 6264 | |
25dbc73a | 6265 | static bfd_boolean |
625af618 | 6266 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) |
25dbc73a | 6267 | { |
25dbc73a AM |
6268 | if (h->root.type == bfd_link_hash_indirect) |
6269 | return TRUE; | |
252b5132 | 6270 | |
625af618 | 6271 | if (readonly_dynrelocs (h)) |
25dbc73a | 6272 | { |
625af618 | 6273 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; |
ee05f2fe | 6274 | |
625af618 AM |
6275 | /* Not an error, just cut short the traversal. */ |
6276 | return FALSE; | |
25dbc73a AM |
6277 | } |
6278 | return TRUE; | |
6279 | } | |
6280 | ||
6177242a AM |
6281 | static const unsigned char glink_eh_frame_cie[] = |
6282 | { | |
6283 | 0, 0, 0, 16, /* length. */ | |
6284 | 0, 0, 0, 0, /* id. */ | |
6285 | 1, /* CIE version. */ | |
6286 | 'z', 'R', 0, /* Augmentation string. */ | |
6287 | 4, /* Code alignment. */ | |
6288 | 0x7c, /* Data alignment. */ | |
6289 | 65, /* RA reg. */ | |
6290 | 1, /* Augmentation size. */ | |
6291 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
6292 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
6293 | }; | |
6294 | ||
25dbc73a AM |
6295 | /* Set the sizes of the dynamic sections. */ |
6296 | ||
6297 | static bfd_boolean | |
93d1b056 | 6298 | ppc_elf_size_dynamic_sections (bfd *output_bfd, |
25dbc73a AM |
6299 | struct bfd_link_info *info) |
6300 | { | |
6301 | struct ppc_elf_link_hash_table *htab; | |
6302 | asection *s; | |
6303 | bfd_boolean relocs; | |
6304 | bfd *ibfd; | |
7fce784e | 6305 | |
252b5132 | 6306 | #ifdef DEBUG |
25dbc73a | 6307 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
252b5132 | 6308 | #endif |
252b5132 | 6309 | |
25dbc73a AM |
6310 | htab = ppc_elf_hash_table (info); |
6311 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 | 6312 | |
25dbc73a AM |
6313 | if (elf_hash_table (info)->dynamic_sections_created) |
6314 | { | |
6315 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 6316 | if (bfd_link_executable (info) && !info->nointerp) |
25dbc73a | 6317 | { |
3d4d4302 | 6318 | s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); |
25dbc73a AM |
6319 | BFD_ASSERT (s != NULL); |
6320 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
6321 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
6322 | } | |
6323 | } | |
252b5132 | 6324 | |
4a3dc543 | 6325 | if (htab->plt_type == PLT_OLD) |
d7128ce4 | 6326 | htab->got_header_size = 16; |
4a3dc543 | 6327 | else if (htab->plt_type == PLT_NEW) |
d7128ce4 | 6328 | htab->got_header_size = 12; |
252b5132 | 6329 | |
25dbc73a AM |
6330 | /* Set up .got offsets for local syms, and space for local dynamic |
6331 | relocs. */ | |
c72f2fb2 | 6332 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
25dbc73a AM |
6333 | { |
6334 | bfd_signed_vma *local_got; | |
6335 | bfd_signed_vma *end_local_got; | |
e054468f AM |
6336 | struct plt_entry **local_plt; |
6337 | struct plt_entry **end_local_plt; | |
25dbc73a AM |
6338 | char *lgot_masks; |
6339 | bfd_size_type locsymcount; | |
6340 | Elf_Internal_Shdr *symtab_hdr; | |
7fce784e | 6341 | |
0c8d6e5c | 6342 | if (!is_ppc_elf (ibfd)) |
25dbc73a | 6343 | continue; |
7fce784e | 6344 | |
25dbc73a AM |
6345 | for (s = ibfd->sections; s != NULL; s = s->next) |
6346 | { | |
f95f8542 | 6347 | struct ppc_dyn_relocs *p; |
252b5132 | 6348 | |
f95f8542 | 6349 | for (p = ((struct ppc_dyn_relocs *) |
25dbc73a AM |
6350 | elf_section_data (s)->local_dynrel); |
6351 | p != NULL; | |
6352 | p = p->next) | |
6353 | { | |
6354 | if (!bfd_is_abs_section (p->sec) | |
6355 | && bfd_is_abs_section (p->sec->output_section)) | |
6356 | { | |
6357 | /* Input section has been discarded, either because | |
6358 | it is a copy of a linkonce section or due to | |
6359 | linker script /DISCARD/, so we'll be discarding | |
6360 | the relocs too. */ | |
7fce784e | 6361 | } |
3348747a NS |
6362 | else if (htab->is_vxworks |
6363 | && strcmp (p->sec->output_section->name, | |
6364 | ".tls_vars") == 0) | |
6365 | { | |
6366 | /* Relocations in vxworks .tls_vars sections are | |
6367 | handled specially by the loader. */ | |
6368 | } | |
25dbc73a | 6369 | else if (p->count != 0) |
7fce784e | 6370 | { |
25f23106 | 6371 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
f95f8542 | 6372 | if (p->ifunc) |
25f23106 AM |
6373 | sreloc = htab->reliplt; |
6374 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
25dbc73a AM |
6375 | if ((p->sec->output_section->flags |
6376 | & (SEC_READONLY | SEC_ALLOC)) | |
6377 | == (SEC_READONLY | SEC_ALLOC)) | |
6378 | info->flags |= DF_TEXTREL; | |
7fce784e | 6379 | } |
252b5132 | 6380 | } |
252b5132 | 6381 | } |
252b5132 | 6382 | |
25dbc73a AM |
6383 | local_got = elf_local_got_refcounts (ibfd); |
6384 | if (!local_got) | |
6385 | continue; | |
252b5132 | 6386 | |
0ffa91dd | 6387 | symtab_hdr = &elf_symtab_hdr (ibfd); |
25dbc73a AM |
6388 | locsymcount = symtab_hdr->sh_info; |
6389 | end_local_got = local_got + locsymcount; | |
e054468f AM |
6390 | local_plt = (struct plt_entry **) end_local_got; |
6391 | end_local_plt = local_plt + locsymcount; | |
6392 | lgot_masks = (char *) end_local_plt; | |
91d6fa6a | 6393 | |
25dbc73a AM |
6394 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
6395 | if (*local_got > 0) | |
6396 | { | |
d6e14abc AM |
6397 | unsigned int need = 0; |
6398 | if ((*lgot_masks & TLS_TLS) != 0) | |
25dbc73a | 6399 | { |
d6e14abc AM |
6400 | if ((*lgot_masks & TLS_GD) != 0) |
6401 | need += 8; | |
6402 | if ((*lgot_masks & TLS_LD) != 0) | |
6403 | htab->tlsld_got.refcount += 1; | |
6404 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6405 | need += 4; | |
6406 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
6407 | need += 4; | |
25dbc73a | 6408 | } |
d6e14abc AM |
6409 | else |
6410 | need += 4; | |
6411 | if (need == 0) | |
6412 | *local_got = (bfd_vma) -1; | |
25dbc73a AM |
6413 | else |
6414 | { | |
3b36f7e6 | 6415 | *local_got = allocate_got (htab, need); |
0e1862bb | 6416 | if (bfd_link_pic (info)) |
0bed072f AM |
6417 | { |
6418 | asection *srel = htab->relgot; | |
6419 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
6420 | srel = htab->reliplt; | |
6421 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); | |
6422 | } | |
25dbc73a AM |
6423 | } |
6424 | } | |
6425 | else | |
6426 | *local_got = (bfd_vma) -1; | |
e054468f AM |
6427 | |
6428 | if (htab->is_vxworks) | |
6429 | continue; | |
6430 | ||
6431 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
6432 | for (; local_plt < end_local_plt; ++local_plt) | |
6433 | { | |
6434 | struct plt_entry *ent; | |
6435 | bfd_boolean doneone = FALSE; | |
6436 | bfd_vma plt_offset = 0, glink_offset = 0; | |
6437 | ||
6438 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
6439 | if (ent->plt.refcount > 0) | |
6440 | { | |
91d6fa6a | 6441 | s = htab->iplt; |
e054468f AM |
6442 | |
6443 | if (!doneone) | |
6444 | { | |
6445 | plt_offset = s->size; | |
6446 | s->size += 4; | |
6447 | } | |
6448 | ent->plt.offset = plt_offset; | |
6449 | ||
6450 | s = htab->glink; | |
0e1862bb | 6451 | if (!doneone || bfd_link_pic (info)) |
e054468f AM |
6452 | { |
6453 | glink_offset = s->size; | |
6454 | s->size += GLINK_ENTRY_SIZE; | |
6455 | } | |
6456 | ent->glink_offset = glink_offset; | |
6457 | ||
6458 | if (!doneone) | |
6459 | { | |
25f23106 | 6460 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
e054468f AM |
6461 | doneone = TRUE; |
6462 | } | |
6463 | } | |
6464 | else | |
6465 | ent->plt.offset = (bfd_vma) -1; | |
6466 | } | |
25dbc73a | 6467 | } |
252b5132 | 6468 | |
b7fcf6f6 AM |
6469 | /* Allocate space for global sym dynamic relocs. */ |
6470 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
6471 | ||
3b36f7e6 AM |
6472 | if (htab->tlsld_got.refcount > 0) |
6473 | { | |
6474 | htab->tlsld_got.offset = allocate_got (htab, 8); | |
0e1862bb | 6475 | if (bfd_link_pic (info)) |
3b36f7e6 AM |
6476 | htab->relgot->size += sizeof (Elf32_External_Rela); |
6477 | } | |
6478 | else | |
6479 | htab->tlsld_got.offset = (bfd_vma) -1; | |
6480 | ||
4a3dc543 | 6481 | if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) |
3b36f7e6 AM |
6482 | { |
6483 | unsigned int g_o_t = 32768; | |
6484 | ||
4d962050 AM |
6485 | /* If we haven't allocated the header, do so now. When we get here, |
6486 | for old plt/got the got size will be 0 to 32764 (not allocated), | |
6487 | or 32780 to 65536 (header allocated). For new plt/got, the | |
6488 | corresponding ranges are 0 to 32768 and 32780 to 65536. */ | |
3b36f7e6 AM |
6489 | if (htab->got->size <= 32768) |
6490 | { | |
6491 | g_o_t = htab->got->size; | |
4a3dc543 | 6492 | if (htab->plt_type == PLT_OLD) |
4d962050 | 6493 | g_o_t += 4; |
3b36f7e6 AM |
6494 | htab->got->size += htab->got_header_size; |
6495 | } | |
3b36f7e6 AM |
6496 | |
6497 | htab->elf.hgot->root.u.def.value = g_o_t; | |
6498 | } | |
0e1862bb | 6499 | if (bfd_link_pic (info)) |
bd6c6e2b AM |
6500 | { |
6501 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
93d1b056 AM |
6502 | |
6503 | sda->root.u.def.section = htab->elf.hgot->root.u.def.section; | |
6504 | sda->root.u.def.value = htab->elf.hgot->root.u.def.value; | |
bd6c6e2b | 6505 | } |
15bfcc77 AM |
6506 | if (info->emitrelocations) |
6507 | { | |
6508 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
6509 | ||
6510 | if (sda != NULL && sda->ref_regular) | |
6511 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6512 | sda = htab->sdata[1].sym; | |
6513 | if (sda != NULL && sda->ref_regular) | |
6514 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6515 | } | |
3b36f7e6 | 6516 | |
e054468f AM |
6517 | if (htab->glink != NULL |
6518 | && htab->glink->size != 0 | |
6519 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
6520 | { |
6521 | htab->glink_pltresolve = htab->glink->size; | |
888a7fc3 AM |
6522 | /* Space for the branch table. ??? We don't need entries for |
6523 | non-dynamic symbols in this table. This case can arise with | |
6524 | static ifuncs or forced local ifuncs. */ | |
86b9da88 AM |
6525 | htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; |
6526 | /* Pad out to align the start of PLTresolve. */ | |
5446cbdf AM |
6527 | htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround |
6528 | ? 63 : 15); | |
d7128ce4 | 6529 | htab->glink->size += GLINK_PLTRESOLVE; |
0ba07910 | 6530 | |
5446cbdf | 6531 | if (htab->params->emit_stub_syms) |
0ba07910 AM |
6532 | { |
6533 | struct elf_link_hash_entry *sh; | |
6534 | sh = elf_link_hash_lookup (&htab->elf, "__glink", | |
6535 | TRUE, FALSE, FALSE); | |
6536 | if (sh == NULL) | |
6537 | return FALSE; | |
6538 | if (sh->root.type == bfd_link_hash_new) | |
6539 | { | |
6540 | sh->root.type = bfd_link_hash_defined; | |
6541 | sh->root.u.def.section = htab->glink; | |
6542 | sh->root.u.def.value = htab->glink_pltresolve; | |
6543 | sh->ref_regular = 1; | |
6544 | sh->def_regular = 1; | |
6545 | sh->ref_regular_nonweak = 1; | |
6546 | sh->forced_local = 1; | |
6547 | sh->non_elf = 0; | |
2ec55de3 | 6548 | sh->root.linker_def = 1; |
0ba07910 AM |
6549 | } |
6550 | sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", | |
6551 | TRUE, FALSE, FALSE); | |
6552 | if (sh == NULL) | |
6553 | return FALSE; | |
6554 | if (sh->root.type == bfd_link_hash_new) | |
6555 | { | |
6556 | sh->root.type = bfd_link_hash_defined; | |
6557 | sh->root.u.def.section = htab->glink; | |
6558 | sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; | |
6559 | sh->ref_regular = 1; | |
6560 | sh->def_regular = 1; | |
6561 | sh->ref_regular_nonweak = 1; | |
6562 | sh->forced_local = 1; | |
6563 | sh->non_elf = 0; | |
2ec55de3 | 6564 | sh->root.linker_def = 1; |
0ba07910 AM |
6565 | } |
6566 | } | |
d7128ce4 AM |
6567 | } |
6568 | ||
6177242a AM |
6569 | if (htab->glink != NULL |
6570 | && htab->glink->size != 0 | |
6571 | && htab->glink_eh_frame != NULL | |
9a2a56cc AM |
6572 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) |
6573 | && _bfd_elf_eh_frame_present (info)) | |
6177242a AM |
6574 | { |
6575 | s = htab->glink_eh_frame; | |
6576 | s->size = sizeof (glink_eh_frame_cie) + 20; | |
0e1862bb | 6577 | if (bfd_link_pic (info)) |
6177242a AM |
6578 | { |
6579 | s->size += 4; | |
6580 | if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256) | |
6581 | s->size += 4; | |
6582 | } | |
6583 | } | |
6584 | ||
25dbc73a AM |
6585 | /* We've now determined the sizes of the various dynamic sections. |
6586 | Allocate memory for them. */ | |
6587 | relocs = FALSE; | |
6588 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 6589 | { |
9d8504b1 PB |
6590 | bfd_boolean strip_section = TRUE; |
6591 | ||
25dbc73a AM |
6592 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
6593 | continue; | |
252b5132 | 6594 | |
25dbc73a | 6595 | if (s == htab->plt |
e054468f | 6596 | || s == htab->got) |
25dbc73a | 6597 | { |
9d8504b1 PB |
6598 | /* We'd like to strip these sections if they aren't needed, but if |
6599 | we've exported dynamic symbols from them we must leave them. | |
6600 | It's too late to tell BFD to get rid of the symbols. */ | |
e054468f | 6601 | if (htab->elf.hplt != NULL) |
9d8504b1 | 6602 | strip_section = FALSE; |
25dbc73a AM |
6603 | /* Strip this section if we don't need it; see the |
6604 | comment below. */ | |
6605 | } | |
e054468f AM |
6606 | else if (s == htab->iplt |
6607 | || s == htab->glink | |
6177242a | 6608 | || s == htab->glink_eh_frame |
e054468f AM |
6609 | || s == htab->sgotplt |
6610 | || s == htab->sbss | |
6611 | || s == htab->dynbss | |
15bfcc77 | 6612 | || s == htab->dynsbss) |
25dbc73a | 6613 | { |
c9a2f333 | 6614 | /* Strip these too. */ |
25dbc73a | 6615 | } |
15bfcc77 AM |
6616 | else if (s == htab->sdata[0].section |
6617 | || s == htab->sdata[1].section) | |
6618 | { | |
6619 | strip_section = (s->flags & SEC_KEEP) == 0; | |
6620 | } | |
a0f49396 NC |
6621 | else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s), |
6622 | ".rela")) | |
25dbc73a | 6623 | { |
c456f082 | 6624 | if (s->size != 0) |
25dbc73a AM |
6625 | { |
6626 | /* Remember whether there are any relocation sections. */ | |
6627 | relocs = TRUE; | |
252b5132 | 6628 | |
25dbc73a AM |
6629 | /* We use the reloc_count field as a counter if we need |
6630 | to copy relocs into the output file. */ | |
6631 | s->reloc_count = 0; | |
252b5132 RH |
6632 | } |
6633 | } | |
25dbc73a AM |
6634 | else |
6635 | { | |
6636 | /* It's not one of our sections, so don't allocate space. */ | |
6637 | continue; | |
6638 | } | |
252b5132 | 6639 | |
9d8504b1 | 6640 | if (s->size == 0 && strip_section) |
25dbc73a | 6641 | { |
c456f082 AM |
6642 | /* If we don't need this section, strip it from the |
6643 | output file. This is mostly to handle .rela.bss and | |
6644 | .rela.plt. We must create both sections in | |
6645 | create_dynamic_sections, because they must be created | |
6646 | before the linker maps input sections to output | |
6647 | sections. The linker does that before | |
6648 | adjust_dynamic_symbol is called, and it is that | |
6649 | function which decides whether anything needs to go | |
6650 | into these sections. */ | |
8423293d | 6651 | s->flags |= SEC_EXCLUDE; |
25dbc73a AM |
6652 | continue; |
6653 | } | |
7fce784e | 6654 | |
d7128ce4 | 6655 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
644285ef AM |
6656 | continue; |
6657 | ||
25dbc73a AM |
6658 | /* Allocate memory for the section contents. */ |
6659 | s->contents = bfd_zalloc (htab->elf.dynobj, s->size); | |
6660 | if (s->contents == NULL) | |
6661 | return FALSE; | |
6662 | } | |
252b5132 | 6663 | |
25dbc73a | 6664 | if (htab->elf.dynamic_sections_created) |
7619e7c7 | 6665 | { |
25dbc73a AM |
6666 | /* Add some entries to the .dynamic section. We fill in the |
6667 | values later, in ppc_elf_finish_dynamic_sections, but we | |
6668 | must add the entries now so that we get the correct size for | |
6669 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6670 | dynamic linker and used by the debugger. */ | |
6671 | #define add_dynamic_entry(TAG, VAL) \ | |
6672 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
252b5132 | 6673 | |
0e1862bb | 6674 | if (bfd_link_executable (info)) |
7619e7c7 | 6675 | { |
25dbc73a AM |
6676 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
6677 | return FALSE; | |
7619e7c7 AM |
6678 | } |
6679 | ||
25dbc73a | 6680 | if (htab->plt != NULL && htab->plt->size != 0) |
7619e7c7 | 6681 | { |
25dbc73a AM |
6682 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6683 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6684 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
6685 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
6686 | return FALSE; | |
6687 | } | |
7619e7c7 | 6688 | |
c7e17e05 AM |
6689 | if (htab->plt_type == PLT_NEW |
6690 | && htab->glink != NULL | |
6691 | && htab->glink->size != 0) | |
d7128ce4 | 6692 | { |
1fe44d79 | 6693 | if (!add_dynamic_entry (DT_PPC_GOT, 0)) |
d7128ce4 | 6694 | return FALSE; |
5446cbdf | 6695 | if (!htab->params->no_tls_get_addr_opt |
a7f2871e AM |
6696 | && htab->tls_get_addr != NULL |
6697 | && htab->tls_get_addr->plt.plist != NULL | |
e8910a83 | 6698 | && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS)) |
a7f2871e | 6699 | return FALSE; |
d7128ce4 AM |
6700 | } |
6701 | ||
25dbc73a AM |
6702 | if (relocs) |
6703 | { | |
6704 | if (!add_dynamic_entry (DT_RELA, 0) | |
6705 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6706 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
6707 | return FALSE; | |
6708 | } | |
7619e7c7 | 6709 | |
25dbc73a AM |
6710 | /* If any dynamic relocs apply to a read-only section, then we |
6711 | need a DT_TEXTREL entry. */ | |
6712 | if ((info->flags & DF_TEXTREL) == 0) | |
625af618 | 6713 | elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, |
25dbc73a | 6714 | info); |
7619e7c7 | 6715 | |
25dbc73a AM |
6716 | if ((info->flags & DF_TEXTREL) != 0) |
6717 | { | |
6718 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
6719 | return FALSE; | |
7619e7c7 | 6720 | } |
7a2b07ff NS |
6721 | if (htab->is_vxworks |
6722 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
6723 | return FALSE; | |
6724 | } | |
25dbc73a AM |
6725 | #undef add_dynamic_entry |
6726 | ||
7e01508c AM |
6727 | if (htab->glink_eh_frame != NULL |
6728 | && htab->glink_eh_frame->contents != NULL) | |
6729 | { | |
6730 | unsigned char *p = htab->glink_eh_frame->contents; | |
6731 | bfd_vma val; | |
6732 | ||
6733 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
6734 | /* CIE length (rewrite in case little-endian). */ | |
6735 | bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p); | |
6736 | p += sizeof (glink_eh_frame_cie); | |
6737 | /* FDE length. */ | |
6738 | val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie); | |
6739 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6740 | p += 4; | |
6741 | /* CIE pointer. */ | |
6742 | val = p - htab->glink_eh_frame->contents; | |
6743 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6744 | p += 4; | |
6745 | /* Offset to .glink. Set later. */ | |
6746 | p += 4; | |
6747 | /* .glink size. */ | |
6748 | bfd_put_32 (htab->elf.dynobj, htab->glink->size, p); | |
6749 | p += 4; | |
6750 | /* Augmentation. */ | |
6751 | p += 1; | |
6752 | ||
0e1862bb | 6753 | if (bfd_link_pic (info) |
7e01508c AM |
6754 | && htab->elf.dynamic_sections_created) |
6755 | { | |
6756 | bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2; | |
6757 | if (adv < 64) | |
6758 | *p++ = DW_CFA_advance_loc + adv; | |
6759 | else if (adv < 256) | |
6760 | { | |
6761 | *p++ = DW_CFA_advance_loc1; | |
6762 | *p++ = adv; | |
6763 | } | |
6764 | else if (adv < 65536) | |
6765 | { | |
6766 | *p++ = DW_CFA_advance_loc2; | |
6767 | bfd_put_16 (htab->elf.dynobj, adv, p); | |
6768 | p += 2; | |
6769 | } | |
6770 | else | |
6771 | { | |
6772 | *p++ = DW_CFA_advance_loc4; | |
6773 | bfd_put_32 (htab->elf.dynobj, adv, p); | |
6774 | p += 4; | |
6775 | } | |
6776 | *p++ = DW_CFA_register; | |
6777 | *p++ = 65; | |
6778 | p++; | |
6779 | *p++ = DW_CFA_advance_loc + 4; | |
6780 | *p++ = DW_CFA_restore_extended; | |
6781 | *p++ = 65; | |
6782 | } | |
6783 | BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4) | |
6784 | == htab->glink_eh_frame->size); | |
6785 | } | |
6786 | ||
7619e7c7 AM |
6787 | return TRUE; |
6788 | } | |
0eb4a168 | 6789 | |
93d1b056 AM |
6790 | /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output |
6791 | if it looks like nothing is using them. */ | |
6792 | ||
6793 | static void | |
6794 | maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect) | |
6795 | { | |
6796 | struct elf_link_hash_entry *sda = lsect->sym; | |
6797 | ||
6798 | if (sda != NULL && !sda->ref_regular && sda->dynindx == -1) | |
6799 | { | |
6800 | asection *s; | |
6801 | ||
6802 | s = bfd_get_section_by_name (output_bfd, lsect->name); | |
6803 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6804 | { | |
6805 | s = bfd_get_section_by_name (output_bfd, lsect->bss_name); | |
6806 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6807 | { | |
6808 | sda->def_regular = 0; | |
6809 | /* This is somewhat magic. See elf_link_output_extsym. */ | |
6810 | sda->ref_dynamic = 1; | |
6811 | sda->forced_local = 0; | |
6812 | } | |
6813 | } | |
6814 | } | |
6815 | } | |
6816 | ||
6817 | void | |
6818 | ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info) | |
6819 | { | |
6820 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
6821 | ||
6822 | if (htab != NULL) | |
6823 | { | |
6824 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]); | |
6825 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]); | |
6826 | } | |
6827 | } | |
6828 | ||
6829 | ||
0eb4a168 AM |
6830 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
6831 | ||
6832 | static bfd_boolean | |
6833 | ppc_elf_hash_symbol (struct elf_link_hash_entry *h) | |
6834 | { | |
6835 | if (h->plt.plist != NULL | |
6836 | && !h->def_regular | |
6837 | && (!h->pointer_equality_needed | |
6838 | || !h->ref_regular_nonweak)) | |
6839 | return FALSE; | |
6840 | ||
6841 | return _bfd_elf_hash_symbol (h); | |
6842 | } | |
25dbc73a AM |
6843 | \f |
6844 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
6845 | ||
01017ef8 NS |
6846 | /* Relaxation trampolines. r12 is available for clobbering (r11, is |
6847 | used for some functions that are allowed to break the ABI). */ | |
25dbc73a AM |
6848 | static const int shared_stub_entry[] = |
6849 | { | |
6850 | 0x7c0802a6, /* mflr 0 */ | |
6851 | 0x429f0005, /* bcl 20, 31, .Lxxx */ | |
01017ef8 NS |
6852 | 0x7d8802a6, /* mflr 12 */ |
6853 | 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */ | |
53291d1f | 6854 | 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */ |
25dbc73a | 6855 | 0x7c0803a6, /* mtlr 0 */ |
01017ef8 | 6856 | 0x7d8903a6, /* mtctr 12 */ |
25dbc73a AM |
6857 | 0x4e800420, /* bctr */ |
6858 | }; | |
6859 | ||
6860 | static const int stub_entry[] = | |
6861 | { | |
01017ef8 NS |
6862 | 0x3d800000, /* lis 12,xxx@ha */ |
6863 | 0x398c0000, /* addi 12,12,xxx@l */ | |
6864 | 0x7d8903a6, /* mtctr 12 */ | |
25dbc73a AM |
6865 | 0x4e800420, /* bctr */ |
6866 | }; | |
6867 | ||
5446cbdf AM |
6868 | struct ppc_elf_relax_info |
6869 | { | |
6870 | unsigned int workaround_size; | |
d3e454b9 | 6871 | unsigned int picfixup_size; |
5446cbdf AM |
6872 | }; |
6873 | ||
6874 | /* This function implements long branch trampolines, and the ppc476 | |
6875 | icache bug workaround. Any section needing trampolines or patch | |
6876 | space for the workaround has its size extended so that we can | |
53291d1f | 6877 | add trampolines at the end of the section. */ |
5446cbdf | 6878 | |
25dbc73a AM |
6879 | static bfd_boolean |
6880 | ppc_elf_relax_section (bfd *abfd, | |
6881 | asection *isec, | |
6882 | struct bfd_link_info *link_info, | |
6883 | bfd_boolean *again) | |
6884 | { | |
d3e454b9 | 6885 | struct one_branch_fixup |
25dbc73a | 6886 | { |
d3e454b9 | 6887 | struct one_branch_fixup *next; |
25dbc73a | 6888 | asection *tsec; |
01017ef8 NS |
6889 | /* Final link, can use the symbol offset. For a |
6890 | relocatable link we use the symbol's index. */ | |
25dbc73a AM |
6891 | bfd_vma toff; |
6892 | bfd_vma trampoff; | |
6893 | }; | |
7619e7c7 | 6894 | |
25dbc73a AM |
6895 | Elf_Internal_Shdr *symtab_hdr; |
6896 | bfd_byte *contents = NULL; | |
6897 | Elf_Internal_Sym *isymbuf = NULL; | |
6898 | Elf_Internal_Rela *internal_relocs = NULL; | |
5446cbdf | 6899 | Elf_Internal_Rela *irel, *irelend = NULL; |
d3e454b9 | 6900 | struct one_branch_fixup *branch_fixups = NULL; |
5446cbdf | 6901 | struct ppc_elf_relax_info *relax_info = NULL; |
9bc4e62b | 6902 | unsigned changes = 0; |
5446cbdf | 6903 | bfd_boolean workaround_change; |
d7128ce4 | 6904 | struct ppc_elf_link_hash_table *htab; |
d3e454b9 | 6905 | bfd_size_type trampbase, trampoff, newsize, picfixup_size; |
a6aa5195 | 6906 | asection *got2; |
50248c89 | 6907 | bfd_boolean maybe_pasted; |
7619e7c7 | 6908 | |
25dbc73a | 6909 | *again = FALSE; |
7619e7c7 | 6910 | |
5446cbdf | 6911 | /* No need to do anything with non-alloc or non-code sections. */ |
c87b5a93 | 6912 | if ((isec->flags & SEC_ALLOC) == 0 |
a8ad78a7 | 6913 | || (isec->flags & SEC_CODE) == 0 |
5446cbdf AM |
6914 | || (isec->flags & SEC_LINKER_CREATED) != 0 |
6915 | || isec->size < 4) | |
25dbc73a | 6916 | return TRUE; |
7619e7c7 | 6917 | |
c8a1f254 NS |
6918 | /* We cannot represent the required PIC relocs in the output, so don't |
6919 | do anything. The linker doesn't support mixing -shared and -r | |
6920 | anyway. */ | |
0e1862bb | 6921 | if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info)) |
795bc6b3 | 6922 | return TRUE; |
5b914448 | 6923 | |
5446cbdf AM |
6924 | htab = ppc_elf_hash_table (link_info); |
6925 | if (htab == NULL) | |
6926 | return TRUE; | |
6927 | ||
6928 | isec->size = (isec->size + 3) & -4; | |
6929 | if (isec->rawsize == 0) | |
6930 | isec->rawsize = isec->size; | |
6931 | trampbase = isec->size; | |
6932 | ||
53291d1f AM |
6933 | BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE |
6934 | || isec->sec_info_type == SEC_INFO_TYPE_TARGET); | |
6935 | isec->sec_info_type = SEC_INFO_TYPE_TARGET; | |
6936 | ||
d3e454b9 AM |
6937 | if (htab->params->ppc476_workaround |
6938 | || htab->params->pic_fixup > 0) | |
5446cbdf AM |
6939 | { |
6940 | if (elf_section_data (isec)->sec_info == NULL) | |
6941 | { | |
5446cbdf AM |
6942 | elf_section_data (isec)->sec_info |
6943 | = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info)); | |
6944 | if (elf_section_data (isec)->sec_info == NULL) | |
6945 | return FALSE; | |
6946 | } | |
6947 | relax_info = elf_section_data (isec)->sec_info; | |
6948 | trampbase -= relax_info->workaround_size; | |
6949 | } | |
6950 | ||
50248c89 AM |
6951 | maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0 |
6952 | || strcmp (isec->output_section->name, ".fini") == 0); | |
25dbc73a | 6953 | /* Space for a branch around any trampolines. */ |
5446cbdf AM |
6954 | trampoff = trampbase; |
6955 | if (maybe_pasted && trampbase == isec->rawsize) | |
50248c89 | 6956 | trampoff += 4; |
7619e7c7 | 6957 | |
0ffa91dd | 6958 | symtab_hdr = &elf_symtab_hdr (abfd); |
d3e454b9 AM |
6959 | picfixup_size = 0; |
6960 | if (htab->params->branch_trampolines | |
6961 | || htab->params->pic_fixup > 0) | |
7619e7c7 | 6962 | { |
5446cbdf AM |
6963 | /* Get a copy of the native relocations. */ |
6964 | if (isec->reloc_count != 0) | |
25dbc73a | 6965 | { |
5446cbdf AM |
6966 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, |
6967 | link_info->keep_memory); | |
6968 | if (internal_relocs == NULL) | |
6969 | goto error_return; | |
25dbc73a | 6970 | } |
7619e7c7 | 6971 | |
5446cbdf AM |
6972 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
6973 | ||
6974 | irelend = internal_relocs + isec->reloc_count; | |
6975 | for (irel = internal_relocs; irel < irelend; irel++) | |
25dbc73a | 6976 | { |
5446cbdf AM |
6977 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); |
6978 | bfd_vma toff, roff; | |
6979 | asection *tsec; | |
d3e454b9 | 6980 | struct one_branch_fixup *f; |
5446cbdf | 6981 | size_t insn_offset = 0; |
d3e454b9 | 6982 | bfd_vma max_branch_offset = 0, val; |
5446cbdf AM |
6983 | bfd_byte *hit_addr; |
6984 | unsigned long t0; | |
6985 | struct elf_link_hash_entry *h; | |
6986 | struct plt_entry **plist; | |
6987 | unsigned char sym_type; | |
6988 | ||
6989 | switch (r_type) | |
6990 | { | |
6991 | case R_PPC_REL24: | |
6992 | case R_PPC_LOCAL24PC: | |
6993 | case R_PPC_PLTREL24: | |
6994 | max_branch_offset = 1 << 25; | |
6995 | break; | |
6996 | ||
6997 | case R_PPC_REL14: | |
6998 | case R_PPC_REL14_BRTAKEN: | |
6999 | case R_PPC_REL14_BRNTAKEN: | |
7000 | max_branch_offset = 1 << 15; | |
7001 | break; | |
7fce784e | 7002 | |
d3e454b9 AM |
7003 | case R_PPC_ADDR16_HA: |
7004 | if (htab->params->pic_fixup > 0) | |
7005 | break; | |
7006 | continue; | |
7007 | ||
5446cbdf AM |
7008 | default: |
7009 | continue; | |
7010 | } | |
7011 | ||
7012 | /* Get the value of the symbol referred to by the reloc. */ | |
7013 | h = NULL; | |
7014 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
25dbc73a | 7015 | { |
5446cbdf AM |
7016 | /* A local symbol. */ |
7017 | Elf_Internal_Sym *isym; | |
7018 | ||
7019 | /* Read this BFD's local symbols. */ | |
25dbc73a | 7020 | if (isymbuf == NULL) |
5446cbdf AM |
7021 | { |
7022 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
7023 | if (isymbuf == NULL) | |
7024 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
7025 | symtab_hdr->sh_info, 0, | |
7026 | NULL, NULL, NULL); | |
7027 | if (isymbuf == 0) | |
7028 | goto error_return; | |
7029 | } | |
7030 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7031 | if (isym->st_shndx == SHN_UNDEF) | |
7032 | tsec = bfd_und_section_ptr; | |
7033 | else if (isym->st_shndx == SHN_ABS) | |
7034 | tsec = bfd_abs_section_ptr; | |
7035 | else if (isym->st_shndx == SHN_COMMON) | |
7036 | tsec = bfd_com_section_ptr; | |
7037 | else | |
7038 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7039 | ||
7040 | toff = isym->st_value; | |
7041 | sym_type = ELF_ST_TYPE (isym->st_info); | |
25dbc73a | 7042 | } |
25dbc73a | 7043 | else |
5446cbdf AM |
7044 | { |
7045 | /* Global symbol handling. */ | |
7046 | unsigned long indx; | |
7fce784e | 7047 | |
5446cbdf AM |
7048 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
7049 | h = elf_sym_hashes (abfd)[indx]; | |
7619e7c7 | 7050 | |
5446cbdf AM |
7051 | while (h->root.type == bfd_link_hash_indirect |
7052 | || h->root.type == bfd_link_hash_warning) | |
7053 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 7054 | |
5446cbdf AM |
7055 | if (h->root.type == bfd_link_hash_defined |
7056 | || h->root.type == bfd_link_hash_defweak) | |
7057 | { | |
7058 | tsec = h->root.u.def.section; | |
7059 | toff = h->root.u.def.value; | |
7060 | } | |
7061 | else if (h->root.type == bfd_link_hash_undefined | |
7062 | || h->root.type == bfd_link_hash_undefweak) | |
7063 | { | |
7064 | tsec = bfd_und_section_ptr; | |
0e1862bb | 7065 | toff = bfd_link_relocatable (link_info) ? indx : 0; |
5446cbdf AM |
7066 | } |
7067 | else | |
7068 | continue; | |
7069 | ||
9f7552cf AM |
7070 | /* If this branch is to __tls_get_addr then we may later |
7071 | optimise away the call. We won't be needing a long- | |
7072 | branch stub in that case. */ | |
0e1862bb | 7073 | if (bfd_link_executable (link_info) |
9f7552cf AM |
7074 | && h == htab->tls_get_addr |
7075 | && irel != internal_relocs) | |
7076 | { | |
7077 | unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info); | |
7078 | unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info); | |
7079 | unsigned int tls_mask = 0; | |
7080 | ||
7081 | /* The previous reloc should be one of R_PPC_TLSGD or | |
7082 | R_PPC_TLSLD, or for older object files, a reloc | |
7083 | on the __tls_get_addr arg setup insn. Get tls | |
7084 | mask bits from the symbol on that reloc. */ | |
7085 | if (t_symndx < symtab_hdr->sh_info) | |
7086 | { | |
7087 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); | |
7088 | ||
7089 | if (local_got_offsets != NULL) | |
7090 | { | |
7091 | struct plt_entry **local_plt = (struct plt_entry **) | |
7092 | (local_got_offsets + symtab_hdr->sh_info); | |
7093 | char *lgot_masks = (char *) | |
7094 | (local_plt + symtab_hdr->sh_info); | |
7095 | tls_mask = lgot_masks[t_symndx]; | |
7096 | } | |
7097 | } | |
7098 | else | |
7099 | { | |
7100 | struct elf_link_hash_entry *th | |
7101 | = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info]; | |
7102 | ||
7103 | while (th->root.type == bfd_link_hash_indirect | |
7104 | || th->root.type == bfd_link_hash_warning) | |
7105 | th = (struct elf_link_hash_entry *) th->root.u.i.link; | |
7106 | ||
7107 | tls_mask | |
7108 | = ((struct ppc_elf_link_hash_entry *) th)->tls_mask; | |
7109 | } | |
7110 | ||
7111 | /* The mask bits tell us if the call will be | |
7112 | optimised away. */ | |
7113 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0 | |
7114 | && (t_rtype == R_PPC_TLSGD | |
7115 | || t_rtype == R_PPC_GOT_TLSGD16 | |
7116 | || t_rtype == R_PPC_GOT_TLSGD16_LO)) | |
7117 | continue; | |
7118 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0 | |
7119 | && (t_rtype == R_PPC_TLSLD | |
7120 | || t_rtype == R_PPC_GOT_TLSLD16 | |
7121 | || t_rtype == R_PPC_GOT_TLSLD16_LO)) | |
7122 | continue; | |
7123 | } | |
7124 | ||
5446cbdf AM |
7125 | sym_type = h->type; |
7126 | } | |
7619e7c7 | 7127 | |
d3e454b9 AM |
7128 | if (r_type == R_PPC_ADDR16_HA) |
7129 | { | |
7130 | if (h != NULL | |
7131 | && !h->def_regular | |
7132 | && h->protected_def | |
7133 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
7134 | && ppc_elf_hash_entry (h)->has_addr16_lo) | |
7135 | picfixup_size += 12; | |
7136 | continue; | |
7137 | } | |
7138 | ||
5446cbdf AM |
7139 | /* The condition here under which we call find_plt_ent must |
7140 | match that in relocate_section. If we call find_plt_ent here | |
7141 | but not in relocate_section, or vice versa, then the branch | |
7142 | destination used here may be incorrect. */ | |
7143 | plist = NULL; | |
7144 | if (h != NULL) | |
25dbc73a | 7145 | { |
5446cbdf AM |
7146 | /* We know is_branch_reloc (r_type) is true. */ |
7147 | if (h->type == STT_GNU_IFUNC | |
7148 | || r_type == R_PPC_PLTREL24) | |
7149 | plist = &h->plt.plist; | |
25dbc73a | 7150 | } |
5446cbdf AM |
7151 | else if (sym_type == STT_GNU_IFUNC |
7152 | && elf_local_got_offsets (abfd) != NULL) | |
c8a1f254 | 7153 | { |
5446cbdf AM |
7154 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); |
7155 | struct plt_entry **local_plt = (struct plt_entry **) | |
7156 | (local_got_offsets + symtab_hdr->sh_info); | |
7157 | plist = local_plt + ELF32_R_SYM (irel->r_info); | |
c8a1f254 | 7158 | } |
5446cbdf | 7159 | if (plist != NULL) |
a9585d22 | 7160 | { |
5446cbdf AM |
7161 | bfd_vma addend = 0; |
7162 | struct plt_entry *ent; | |
7163 | ||
0e1862bb | 7164 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info)) |
5446cbdf AM |
7165 | addend = irel->r_addend; |
7166 | ent = find_plt_ent (plist, got2, addend); | |
7167 | if (ent != NULL) | |
a9585d22 | 7168 | { |
5446cbdf AM |
7169 | if (htab->plt_type == PLT_NEW |
7170 | || h == NULL | |
7171 | || !htab->elf.dynamic_sections_created | |
7172 | || h->dynindx == -1) | |
7173 | { | |
7174 | tsec = htab->glink; | |
7175 | toff = ent->glink_offset; | |
7176 | } | |
7177 | else | |
7178 | { | |
7179 | tsec = htab->plt; | |
7180 | toff = ent->plt.offset; | |
7181 | } | |
de972ffa AM |
7182 | } |
7183 | } | |
de972ffa | 7184 | |
5446cbdf AM |
7185 | /* If the branch and target are in the same section, you have |
7186 | no hope of adding stubs. We'll error out later should the | |
7187 | branch overflow. */ | |
7188 | if (tsec == isec) | |
7189 | continue; | |
25dbc73a | 7190 | |
5446cbdf AM |
7191 | /* There probably isn't any reason to handle symbols in |
7192 | SEC_MERGE sections; SEC_MERGE doesn't seem a likely | |
7193 | attribute for a code section, and we are only looking at | |
7194 | branches. However, implement it correctly here as a | |
7195 | reference for other target relax_section functions. */ | |
7196 | if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
7197 | { | |
7198 | /* At this stage in linking, no SEC_MERGE symbol has been | |
7199 | adjusted, so all references to such symbols need to be | |
7200 | passed through _bfd_merged_section_offset. (Later, in | |
7201 | relocate_section, all SEC_MERGE symbols *except* for | |
7202 | section symbols have been adjusted.) | |
7203 | ||
7204 | gas may reduce relocations against symbols in SEC_MERGE | |
7205 | sections to a relocation against the section symbol when | |
7206 | the original addend was zero. When the reloc is against | |
7207 | a section symbol we should include the addend in the | |
7208 | offset passed to _bfd_merged_section_offset, since the | |
7209 | location of interest is the original symbol. On the | |
7210 | other hand, an access to "sym+addend" where "sym" is not | |
7211 | a section symbol should not include the addend; Such an | |
7212 | access is presumed to be an offset from "sym"; The | |
7213 | location of interest is just "sym". */ | |
7214 | if (sym_type == STT_SECTION) | |
7215 | toff += irel->r_addend; | |
7216 | ||
7217 | toff | |
7218 | = _bfd_merged_section_offset (abfd, &tsec, | |
7219 | elf_section_data (tsec)->sec_info, | |
7220 | toff); | |
7221 | ||
7222 | if (sym_type != STT_SECTION) | |
7223 | toff += irel->r_addend; | |
7224 | } | |
7225 | /* PLTREL24 addends are special. */ | |
7226 | else if (r_type != R_PPC_PLTREL24) | |
25dbc73a | 7227 | toff += irel->r_addend; |
7619e7c7 | 7228 | |
5446cbdf | 7229 | /* Attempted -shared link of non-pic code loses. */ |
0e1862bb | 7230 | if ((!bfd_link_relocatable (link_info) |
5446cbdf AM |
7231 | && tsec == bfd_und_section_ptr) |
7232 | || tsec->output_section == NULL | |
7233 | || (tsec->owner != NULL | |
7234 | && (tsec->owner->flags & BFD_PLUGIN) != 0)) | |
7235 | continue; | |
7619e7c7 | 7236 | |
5446cbdf | 7237 | roff = irel->r_offset; |
7de713b9 | 7238 | |
5446cbdf AM |
7239 | /* If the branch is in range, no need to do anything. */ |
7240 | if (tsec != bfd_und_section_ptr | |
0e1862bb | 7241 | && (!bfd_link_relocatable (link_info) |
5446cbdf AM |
7242 | /* A relocatable link may have sections moved during |
7243 | final link, so do not presume they remain in range. */ | |
7244 | || tsec->output_section == isec->output_section)) | |
7245 | { | |
7246 | bfd_vma symaddr, reladdr; | |
7619e7c7 | 7247 | |
5446cbdf AM |
7248 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; |
7249 | reladdr = isec->output_section->vma + isec->output_offset + roff; | |
7250 | if (symaddr - reladdr + max_branch_offset | |
7251 | < 2 * max_branch_offset) | |
7252 | continue; | |
7253 | } | |
01017ef8 | 7254 | |
5446cbdf | 7255 | /* Look for an existing fixup to this address. */ |
d3e454b9 | 7256 | for (f = branch_fixups; f ; f = f->next) |
5446cbdf AM |
7257 | if (f->tsec == tsec && f->toff == toff) |
7258 | break; | |
252b5132 | 7259 | |
5446cbdf AM |
7260 | if (f == NULL) |
7261 | { | |
7262 | size_t size; | |
7263 | unsigned long stub_rtype; | |
25dbc73a | 7264 | |
5446cbdf AM |
7265 | val = trampoff - roff; |
7266 | if (val >= max_branch_offset) | |
7267 | /* Oh dear, we can't reach a trampoline. Don't try to add | |
7268 | one. We'll report an error later. */ | |
7269 | continue; | |
252b5132 | 7270 | |
0e1862bb | 7271 | if (bfd_link_pic (link_info)) |
5446cbdf AM |
7272 | { |
7273 | size = 4 * ARRAY_SIZE (shared_stub_entry); | |
7274 | insn_offset = 12; | |
7275 | } | |
7276 | else | |
7277 | { | |
7278 | size = 4 * ARRAY_SIZE (stub_entry); | |
7279 | insn_offset = 0; | |
7280 | } | |
7281 | stub_rtype = R_PPC_RELAX; | |
7282 | if (tsec == htab->plt | |
7283 | || tsec == htab->glink) | |
7284 | { | |
7285 | stub_rtype = R_PPC_RELAX_PLT; | |
7286 | if (r_type == R_PPC_PLTREL24) | |
7287 | stub_rtype = R_PPC_RELAX_PLTREL24; | |
7288 | } | |
252b5132 | 7289 | |
5446cbdf AM |
7290 | /* Hijack the old relocation. Since we need two |
7291 | relocations for this use a "composite" reloc. */ | |
7292 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
7293 | stub_rtype); | |
7294 | irel->r_offset = trampoff + insn_offset; | |
7295 | if (r_type == R_PPC_PLTREL24 | |
7296 | && stub_rtype != R_PPC_RELAX_PLTREL24) | |
7297 | irel->r_addend = 0; | |
7298 | ||
7299 | /* Record the fixup so we don't do it again this section. */ | |
7300 | f = bfd_malloc (sizeof (*f)); | |
d3e454b9 | 7301 | f->next = branch_fixups; |
5446cbdf AM |
7302 | f->tsec = tsec; |
7303 | f->toff = toff; | |
7304 | f->trampoff = trampoff; | |
d3e454b9 | 7305 | branch_fixups = f; |
5446cbdf AM |
7306 | |
7307 | trampoff += size; | |
7308 | changes++; | |
25dbc73a AM |
7309 | } |
7310 | else | |
7311 | { | |
5446cbdf AM |
7312 | val = f->trampoff - roff; |
7313 | if (val >= max_branch_offset) | |
7314 | continue; | |
252b5132 | 7315 | |
5446cbdf AM |
7316 | /* Nop out the reloc, since we're finalizing things here. */ |
7317 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7318 | } | |
252b5132 | 7319 | |
5446cbdf AM |
7320 | /* Get the section contents. */ |
7321 | if (contents == NULL) | |
25dbc73a | 7322 | { |
5446cbdf AM |
7323 | /* Get cached copy if it exists. */ |
7324 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
7325 | contents = elf_section_data (isec)->this_hdr.contents; | |
25dbc73a | 7326 | /* Go get them off disk. */ |
5446cbdf | 7327 | else if (!bfd_malloc_and_get_section (abfd, isec, &contents)) |
25dbc73a AM |
7328 | goto error_return; |
7329 | } | |
252b5132 | 7330 | |
5446cbdf AM |
7331 | /* Fix up the existing branch to hit the trampoline. */ |
7332 | hit_addr = contents + roff; | |
7333 | switch (r_type) | |
7334 | { | |
7335 | case R_PPC_REL24: | |
7336 | case R_PPC_LOCAL24PC: | |
7337 | case R_PPC_PLTREL24: | |
7338 | t0 = bfd_get_32 (abfd, hit_addr); | |
7339 | t0 &= ~0x3fffffc; | |
7340 | t0 |= val & 0x3fffffc; | |
7341 | bfd_put_32 (abfd, t0, hit_addr); | |
7342 | break; | |
252b5132 | 7343 | |
5446cbdf AM |
7344 | case R_PPC_REL14: |
7345 | case R_PPC_REL14_BRTAKEN: | |
7346 | case R_PPC_REL14_BRNTAKEN: | |
7347 | t0 = bfd_get_32 (abfd, hit_addr); | |
7348 | t0 &= ~0xfffc; | |
7349 | t0 |= val & 0xfffc; | |
7350 | bfd_put_32 (abfd, t0, hit_addr); | |
7351 | break; | |
7352 | } | |
25dbc73a | 7353 | } |
252b5132 | 7354 | |
d3e454b9 | 7355 | while (branch_fixups != NULL) |
25dbc73a | 7356 | { |
d3e454b9 AM |
7357 | struct one_branch_fixup *f = branch_fixups; |
7358 | branch_fixups = branch_fixups->next; | |
25dbc73a AM |
7359 | free (f); |
7360 | } | |
5446cbdf | 7361 | } |
252b5132 | 7362 | |
5446cbdf AM |
7363 | workaround_change = FALSE; |
7364 | newsize = trampoff; | |
795bc6b3 | 7365 | if (htab->params->ppc476_workaround |
0e1862bb | 7366 | && (!bfd_link_relocatable (link_info) |
795bc6b3 | 7367 | || isec->output_section->alignment_power >= htab->params->pagesize_p2)) |
5446cbdf AM |
7368 | { |
7369 | bfd_vma addr, end_addr; | |
7370 | unsigned int crossings; | |
795bc6b3 | 7371 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf AM |
7372 | |
7373 | addr = isec->output_section->vma + isec->output_offset; | |
6128f9cf | 7374 | end_addr = addr + trampoff; |
5446cbdf | 7375 | addr &= -pagesize; |
795bc6b3 | 7376 | crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2; |
5446cbdf AM |
7377 | if (crossings != 0) |
7378 | { | |
7379 | /* Keep space aligned, to ensure the patch code itself does | |
7380 | not cross a page. Don't decrease size calculated on a | |
7381 | previous pass as otherwise we might never settle on a layout. */ | |
1e269e9b | 7382 | newsize = 15 - ((end_addr - 1) & 15); |
5446cbdf AM |
7383 | newsize += crossings * 16; |
7384 | if (relax_info->workaround_size < newsize) | |
7385 | { | |
7386 | relax_info->workaround_size = newsize; | |
7387 | workaround_change = TRUE; | |
5446cbdf AM |
7388 | } |
7389 | /* Ensure relocate_section is called. */ | |
7390 | isec->flags |= SEC_RELOC; | |
7391 | } | |
7392 | newsize = trampoff + relax_info->workaround_size; | |
7393 | } | |
7394 | ||
d3e454b9 AM |
7395 | if (htab->params->pic_fixup > 0) |
7396 | { | |
7397 | picfixup_size -= relax_info->picfixup_size; | |
7398 | if (picfixup_size != 0) | |
7399 | relax_info->picfixup_size += picfixup_size; | |
7400 | newsize += relax_info->picfixup_size; | |
7401 | } | |
7402 | ||
7403 | if (changes != 0 || picfixup_size != 0 || workaround_change) | |
5446cbdf AM |
7404 | isec->size = newsize; |
7405 | ||
25dbc73a AM |
7406 | if (isymbuf != NULL |
7407 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 7408 | { |
25dbc73a AM |
7409 | if (! link_info->keep_memory) |
7410 | free (isymbuf); | |
252b5132 | 7411 | else |
25dbc73a AM |
7412 | { |
7413 | /* Cache the symbols for elf_link_input_bfd. */ | |
7414 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
7415 | } | |
252b5132 RH |
7416 | } |
7417 | ||
25dbc73a AM |
7418 | if (contents != NULL |
7419 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7420 | { | |
53291d1f | 7421 | if (!changes && !link_info->keep_memory) |
25dbc73a AM |
7422 | free (contents); |
7423 | else | |
7424 | { | |
7425 | /* Cache the section contents for elf_link_input_bfd. */ | |
7426 | elf_section_data (isec)->this_hdr.contents = contents; | |
7427 | } | |
7428 | } | |
252b5132 | 7429 | |
d3e454b9 | 7430 | changes += picfixup_size; |
9bc4e62b | 7431 | if (changes != 0) |
25dbc73a | 7432 | { |
9bc4e62b NS |
7433 | /* Append sufficient NOP relocs so we can write out relocation |
7434 | information for the trampolines. */ | |
d4730f92 | 7435 | Elf_Internal_Shdr *rel_hdr; |
9bc4e62b NS |
7436 | Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) |
7437 | * sizeof (*new_relocs)); | |
7438 | unsigned ix; | |
5b914448 | 7439 | |
9bc4e62b NS |
7440 | if (!new_relocs) |
7441 | goto error_return; | |
7442 | memcpy (new_relocs, internal_relocs, | |
7443 | isec->reloc_count * sizeof (*new_relocs)); | |
7444 | for (ix = changes; ix--;) | |
7445 | { | |
7446 | irel = new_relocs + ix + isec->reloc_count; | |
7447 | ||
7448 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7449 | } | |
7450 | if (internal_relocs != elf_section_data (isec)->relocs) | |
25dbc73a | 7451 | free (internal_relocs); |
9bc4e62b NS |
7452 | elf_section_data (isec)->relocs = new_relocs; |
7453 | isec->reloc_count += changes; | |
d4730f92 BS |
7454 | rel_hdr = _bfd_elf_single_rel_hdr (isec); |
7455 | rel_hdr->sh_size += changes * rel_hdr->sh_entsize; | |
25dbc73a | 7456 | } |
5446cbdf AM |
7457 | else if (internal_relocs != NULL |
7458 | && elf_section_data (isec)->relocs != internal_relocs) | |
9bc4e62b | 7459 | free (internal_relocs); |
252b5132 | 7460 | |
5446cbdf | 7461 | *again = changes != 0 || workaround_change; |
b34976b6 | 7462 | return TRUE; |
25dbc73a AM |
7463 | |
7464 | error_return: | |
d3e454b9 | 7465 | while (branch_fixups != NULL) |
5446cbdf | 7466 | { |
d3e454b9 AM |
7467 | struct one_branch_fixup *f = branch_fixups; |
7468 | branch_fixups = branch_fixups->next; | |
5446cbdf AM |
7469 | free (f); |
7470 | } | |
25dbc73a AM |
7471 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) |
7472 | free (isymbuf); | |
7473 | if (contents != NULL | |
7474 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7475 | free (contents); | |
7476 | if (internal_relocs != NULL | |
7477 | && elf_section_data (isec)->relocs != internal_relocs) | |
7478 | free (internal_relocs); | |
7479 | return FALSE; | |
252b5132 | 7480 | } |
252b5132 | 7481 | \f |
8a696751 AM |
7482 | /* What to do when ld finds relocations against symbols defined in |
7483 | discarded sections. */ | |
7484 | ||
7485 | static unsigned int | |
7486 | ppc_elf_action_discarded (asection *sec) | |
7487 | { | |
7488 | if (strcmp (".fixup", sec->name) == 0) | |
7489 | return 0; | |
7490 | ||
7491 | if (strcmp (".got2", sec->name) == 0) | |
7492 | return 0; | |
7493 | ||
7494 | return _bfd_elf_default_action_discarded (sec); | |
7495 | } | |
c9a2f333 | 7496 | \f |
25dbc73a | 7497 | /* Fill in the address for a pointer generated in a linker section. */ |
252b5132 | 7498 | |
25dbc73a | 7499 | static bfd_vma |
76750a2f | 7500 | elf_finish_pointer_linker_section (bfd *input_bfd, |
25dbc73a AM |
7501 | elf_linker_section_t *lsect, |
7502 | struct elf_link_hash_entry *h, | |
7503 | bfd_vma relocation, | |
2bb04cf2 | 7504 | const Elf_Internal_Rela *rel) |
25dbc73a AM |
7505 | { |
7506 | elf_linker_section_pointers_t *linker_section_ptr; | |
252b5132 | 7507 | |
25dbc73a | 7508 | BFD_ASSERT (lsect != NULL); |
252b5132 | 7509 | |
25dbc73a | 7510 | if (h != NULL) |
252b5132 | 7511 | { |
25dbc73a AM |
7512 | /* Handle global symbol. */ |
7513 | struct ppc_elf_link_hash_entry *eh; | |
252b5132 | 7514 | |
25dbc73a | 7515 | eh = (struct ppc_elf_link_hash_entry *) h; |
76750a2f AM |
7516 | BFD_ASSERT (eh->elf.def_regular); |
7517 | linker_section_ptr = eh->linker_section_pointer; | |
25dbc73a AM |
7518 | } |
7519 | else | |
7520 | { | |
7521 | /* Handle local symbol. */ | |
7522 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
76750a2f | 7523 | |
0c8d6e5c | 7524 | BFD_ASSERT (is_ppc_elf (input_bfd)); |
25dbc73a | 7525 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); |
76750a2f AM |
7526 | linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; |
7527 | } | |
252b5132 | 7528 | |
76750a2f AM |
7529 | linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, |
7530 | rel->r_addend, | |
7531 | lsect); | |
7532 | BFD_ASSERT (linker_section_ptr != NULL); | |
25dbc73a | 7533 | |
76750a2f AM |
7534 | /* Offset will always be a multiple of four, so use the bottom bit |
7535 | as a "written" flag. */ | |
7536 | if ((linker_section_ptr->offset & 1) == 0) | |
7537 | { | |
7538 | bfd_put_32 (lsect->section->owner, | |
7539 | relocation + linker_section_ptr->addend, | |
7540 | lsect->section->contents + linker_section_ptr->offset); | |
7541 | linker_section_ptr->offset += 1; | |
252b5132 RH |
7542 | } |
7543 | ||
bd6c6e2b AM |
7544 | relocation = (lsect->section->output_section->vma |
7545 | + lsect->section->output_offset | |
76750a2f | 7546 | + linker_section_ptr->offset - 1 |
bd6c6e2b | 7547 | - SYM_VAL (lsect->sym)); |
252b5132 | 7548 | |
25dbc73a AM |
7549 | #ifdef DEBUG |
7550 | fprintf (stderr, | |
7551 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
7552 | lsect->name, (long) relocation, (long) relocation); | |
7553 | #endif | |
252b5132 | 7554 | |
bd6c6e2b | 7555 | return relocation; |
252b5132 | 7556 | } |
25dbc73a | 7557 | |
e054468f AM |
7558 | #define PPC_LO(v) ((v) & 0xffff) |
7559 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7560 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7561 | ||
7562 | static void | |
a7f2871e | 7563 | write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p, |
e054468f AM |
7564 | struct bfd_link_info *info) |
7565 | { | |
7566 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
7567 | bfd *output_bfd = info->output_bfd; | |
7568 | bfd_vma plt; | |
e054468f AM |
7569 | |
7570 | plt = ((ent->plt.offset & ~1) | |
7571 | + plt_sec->output_section->vma | |
7572 | + plt_sec->output_offset); | |
e054468f | 7573 | |
0e1862bb | 7574 | if (bfd_link_pic (info)) |
e054468f AM |
7575 | { |
7576 | bfd_vma got = 0; | |
7577 | ||
7578 | if (ent->addend >= 32768) | |
7579 | got = (ent->addend | |
7580 | + ent->sec->output_section->vma | |
7581 | + ent->sec->output_offset); | |
7582 | else if (htab->elf.hgot != NULL) | |
7583 | got = SYM_VAL (htab->elf.hgot); | |
7584 | ||
7585 | plt -= got; | |
7586 | ||
7587 | if (plt + 0x8000 < 0x10000) | |
7588 | { | |
7589 | bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); | |
7590 | p += 4; | |
7591 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7592 | p += 4; | |
7593 | bfd_put_32 (output_bfd, BCTR, p); | |
7594 | p += 4; | |
da3a2088 | 7595 | bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p); |
e054468f AM |
7596 | p += 4; |
7597 | } | |
7598 | else | |
7599 | { | |
7600 | bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); | |
7601 | p += 4; | |
7602 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7603 | p += 4; | |
7604 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7605 | p += 4; | |
7606 | bfd_put_32 (output_bfd, BCTR, p); | |
7607 | p += 4; | |
7608 | } | |
7609 | } | |
7610 | else | |
7611 | { | |
7612 | bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); | |
7613 | p += 4; | |
7614 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7615 | p += 4; | |
7616 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7617 | p += 4; | |
7618 | bfd_put_32 (output_bfd, BCTR, p); | |
7619 | p += 4; | |
7620 | } | |
7621 | } | |
7622 | ||
bd6c6e2b AM |
7623 | /* Return true if symbol is defined statically. */ |
7624 | ||
7625 | static bfd_boolean | |
7626 | is_static_defined (struct elf_link_hash_entry *h) | |
7627 | { | |
7628 | return ((h->root.type == bfd_link_hash_defined | |
7629 | || h->root.type == bfd_link_hash_defweak) | |
7630 | && h->root.u.def.section != NULL | |
7631 | && h->root.u.def.section->output_section != NULL); | |
7632 | } | |
7633 | ||
2d0f3896 AM |
7634 | /* If INSN is an opcode that may be used with an @tls operand, return |
7635 | the transformed insn for TLS optimisation, otherwise return 0. If | |
7636 | REG is non-zero only match an insn with RB or RA equal to REG. */ | |
7637 | ||
7638 | unsigned int | |
7639 | _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg) | |
7640 | { | |
7641 | unsigned int rtra; | |
7642 | ||
7643 | if ((insn & (0x3f << 26)) != 31 << 26) | |
7644 | return 0; | |
7645 | ||
7646 | if (reg == 0 || ((insn >> 11) & 0x1f) == reg) | |
7647 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7648 | else if (((insn >> 16) & 0x1f) == reg) | |
7649 | rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5); | |
7650 | else | |
7651 | return 0; | |
7652 | ||
7653 | if ((insn & (0x3ff << 1)) == 266 << 1) | |
7654 | /* add -> addi. */ | |
7655 | insn = 14 << 26; | |
7656 | else if ((insn & (0x1f << 1)) == 23 << 1 | |
7657 | && ((insn & (0x1f << 6)) < 14 << 6 | |
7658 | || ((insn & (0x1f << 6)) >= 16 << 6 | |
7659 | && (insn & (0x1f << 6)) < 24 << 6))) | |
7660 | /* load and store indexed -> dform. */ | |
7661 | insn = (32 | ((insn >> 6) & 0x1f)) << 26; | |
7662 | else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1) | |
7663 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7664 | insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1); | |
7665 | else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1) | |
7666 | /* lwax -> lwa. */ | |
7667 | insn = (58 << 26) | 2; | |
7668 | else | |
7669 | return 0; | |
7670 | insn |= rtra; | |
7671 | return insn; | |
7672 | } | |
7673 | ||
766bc656 AM |
7674 | /* If INSN is an opcode that may be used with an @tprel operand, return |
7675 | the transformed insn for an undefined weak symbol, ie. with the | |
7676 | thread pointer REG operand removed. Otherwise return 0. */ | |
7677 | ||
7678 | unsigned int | |
7679 | _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg) | |
7680 | { | |
7681 | if ((insn & (0x1f << 16)) == reg << 16 | |
7682 | && ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
7683 | || (insn & (0x3f << 26)) == 15u << 26 /* addis */ | |
7684 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
7685 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
7686 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
7687 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
7688 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
7689 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
7690 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
7691 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
7692 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
7693 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
7694 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
7695 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
7696 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
7697 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
7698 | && (insn & 3) != 1) | |
7699 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
7700 | && ((insn & 3) == 0 || (insn & 3) == 3)))) | |
7701 | { | |
7702 | insn &= ~(0x1f << 16); | |
7703 | } | |
7704 | else if ((insn & (0x1f << 21)) == reg << 21 | |
7705 | && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */ | |
7706 | || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */ | |
7707 | || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */)) | |
7708 | { | |
7709 | insn &= ~(0x1f << 21); | |
7710 | insn |= (insn & (0x1f << 16)) << 5; | |
7711 | if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */) | |
7712 | insn -= 2 >> 26; /* convert to ori,oris */ | |
7713 | } | |
7714 | else | |
7715 | insn = 0; | |
7716 | return insn; | |
7717 | } | |
7718 | ||
1fe532cf AM |
7719 | static bfd_boolean |
7720 | is_insn_ds_form (unsigned int insn) | |
7721 | { | |
7722 | return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */ | |
7723 | || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */ | |
7724 | || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */ | |
7725 | || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */); | |
7726 | } | |
7727 | ||
7728 | static bfd_boolean | |
7729 | is_insn_dq_form (unsigned int insn) | |
7730 | { | |
a680de9a PB |
7731 | return ((insn & (0x3f << 26)) == 56u << 26 /* lq */ |
7732 | || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */ | |
7733 | && (insn & 3) == 1)); | |
1fe532cf AM |
7734 | } |
7735 | ||
252b5132 RH |
7736 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7737 | to handle the relocations for a section. | |
7738 | ||
7739 | The relocs are always passed as Rela structures; if the section | |
7740 | actually uses Rel structures, the r_addend field will always be | |
7741 | zero. | |
7742 | ||
7743 | This function is responsible for adjust the section contents as | |
7744 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7745 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
7746 | necessary. |
7747 | ||
7748 | This function does not have to worry about setting the reloc | |
7749 | address or the reloc symbol index. | |
7750 | ||
7751 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7752 | ||
7753 | LOCAL_SECTIONS is an array giving the section in the input file | |
7754 | corresponding to the st_shndx field of each local symbol. | |
7755 | ||
7756 | The global hash table entry for the global symbols can be found | |
7757 | via elf_sym_hashes (input_bfd). | |
7758 | ||
1049f94e | 7759 | When generating relocatable output, this function must handle |
252b5132 RH |
7760 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7761 | going to be the section symbol corresponding to the output | |
7762 | section, which means that the addend must be adjusted | |
7763 | accordingly. */ | |
7764 | ||
b34976b6 | 7765 | static bfd_boolean |
55fd94b0 AM |
7766 | ppc_elf_relocate_section (bfd *output_bfd, |
7767 | struct bfd_link_info *info, | |
7768 | bfd *input_bfd, | |
7769 | asection *input_section, | |
7770 | bfd_byte *contents, | |
7771 | Elf_Internal_Rela *relocs, | |
7772 | Elf_Internal_Sym *local_syms, | |
7773 | asection **local_sections) | |
252b5132 | 7774 | { |
7619e7c7 AM |
7775 | Elf_Internal_Shdr *symtab_hdr; |
7776 | struct elf_link_hash_entry **sym_hashes; | |
7777 | struct ppc_elf_link_hash_table *htab; | |
7778 | Elf_Internal_Rela *rel; | |
c316a17c | 7779 | Elf_Internal_Rela *wrel; |
7619e7c7 AM |
7780 | Elf_Internal_Rela *relend; |
7781 | Elf_Internal_Rela outrel; | |
f95f8542 | 7782 | asection *got2; |
252b5132 | 7783 | bfd_vma *local_got_offsets; |
b34976b6 | 7784 | bfd_boolean ret = TRUE; |
4fe5ca5b | 7785 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
3348747a | 7786 | bfd_boolean is_vxworks_tls; |
d3e454b9 AM |
7787 | unsigned int picfixup_size = 0; |
7788 | struct ppc_elf_relax_info *relax_info = NULL; | |
b34976b6 | 7789 | |
252b5132 | 7790 | #ifdef DEBUG |
d003868e AM |
7791 | _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " |
7792 | "%ld relocations%s", | |
7793 | input_bfd, input_section, | |
7794 | (long) input_section->reloc_count, | |
0e1862bb | 7795 | (bfd_link_relocatable (info)) ? " (relocatable)" : ""); |
252b5132 RH |
7796 | #endif |
7797 | ||
a6aa5195 AM |
7798 | got2 = bfd_get_section_by_name (input_bfd, ".got2"); |
7799 | ||
e47cd125 | 7800 | /* Initialize howto table if not already done. */ |
8da6118f | 7801 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
7802 | ppc_elf_howto_init (); |
7803 | ||
7619e7c7 | 7804 | htab = ppc_elf_hash_table (info); |
252b5132 | 7805 | local_got_offsets = elf_local_got_offsets (input_bfd); |
0ffa91dd | 7806 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
7619e7c7 | 7807 | sym_hashes = elf_sym_hashes (input_bfd); |
3348747a NS |
7808 | /* We have to handle relocations in vxworks .tls_vars sections |
7809 | specially, because the dynamic loader is 'weird'. */ | |
0e1862bb | 7810 | is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info) |
3348747a NS |
7811 | && !strcmp (input_section->output_section->name, |
7812 | ".tls_vars")); | |
d3e454b9 AM |
7813 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET) |
7814 | relax_info = elf_section_data (input_section)->sec_info; | |
c316a17c | 7815 | rel = wrel = relocs; |
7619e7c7 | 7816 | relend = relocs + input_section->reloc_count; |
c316a17c | 7817 | for (; rel < relend; wrel++, rel++) |
252b5132 | 7818 | { |
7619e7c7 AM |
7819 | enum elf_ppc_reloc_type r_type; |
7820 | bfd_vma addend; | |
7821 | bfd_reloc_status_type r; | |
7822 | Elf_Internal_Sym *sym; | |
7823 | asection *sec; | |
7824 | struct elf_link_hash_entry *h; | |
7825 | const char *sym_name; | |
252b5132 RH |
7826 | reloc_howto_type *howto; |
7827 | unsigned long r_symndx; | |
7828 | bfd_vma relocation; | |
91d6fa6a | 7829 | bfd_vma branch_bit, from; |
7619e7c7 AM |
7830 | bfd_boolean unresolved_reloc; |
7831 | bfd_boolean warned; | |
7832 | unsigned int tls_type, tls_mask, tls_gd; | |
e054468f | 7833 | struct plt_entry **ifunc; |
86c95733 | 7834 | struct reloc_howto_struct alt_howto; |
7619e7c7 | 7835 | |
c316a17c | 7836 | again: |
55fd94b0 AM |
7837 | r_type = ELF32_R_TYPE (rel->r_info); |
7838 | sym = NULL; | |
7839 | sec = NULL; | |
7840 | h = NULL; | |
7619e7c7 AM |
7841 | unresolved_reloc = FALSE; |
7842 | warned = FALSE; | |
252b5132 | 7843 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 7844 | |
252b5132 RH |
7845 | if (r_symndx < symtab_hdr->sh_info) |
7846 | { | |
7847 | sym = local_syms + r_symndx; | |
7848 | sec = local_sections[r_symndx]; | |
26c61ae5 | 7849 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
252b5132 | 7850 | |
8517fae7 | 7851 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
7852 | } |
7853 | else | |
7854 | { | |
62d887d4 L |
7855 | bfd_boolean ignored; |
7856 | ||
b2a8e766 AM |
7857 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
7858 | r_symndx, symtab_hdr, sym_hashes, | |
7859 | h, sec, relocation, | |
62d887d4 | 7860 | unresolved_reloc, warned, ignored); |
9abc968f | 7861 | |
252b5132 | 7862 | sym_name = h->root.root.string; |
7619e7c7 AM |
7863 | } |
7864 | ||
dbaa2011 | 7865 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
7866 | { |
7867 | /* For relocs against symbols from removed linkonce sections, | |
7868 | or sections discarded by a linker script, we just want the | |
7869 | section contents zeroed. Avoid any special processing. */ | |
7870 | howto = NULL; | |
7871 | if (r_type < R_PPC_max) | |
7872 | howto = ppc_elf_howto_table[r_type]; | |
c316a17c AM |
7873 | |
7874 | _bfd_clear_contents (howto, input_bfd, input_section, | |
7875 | contents + rel->r_offset); | |
7876 | wrel->r_offset = rel->r_offset; | |
7877 | wrel->r_info = 0; | |
7878 | wrel->r_addend = 0; | |
7879 | ||
7880 | /* For ld -r, remove relocations in debug sections against | |
7881 | sections defined in discarded sections. Not done for | |
7882 | non-debug to preserve relocs in .eh_frame which the | |
7883 | eh_frame editing code expects to be present. */ | |
7884 | if (bfd_link_relocatable (info) | |
7885 | && (input_section->flags & SEC_DEBUGGING)) | |
7886 | wrel--; | |
7887 | ||
7888 | continue; | |
ab96bf03 AM |
7889 | } |
7890 | ||
0e1862bb | 7891 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
7892 | { |
7893 | if (got2 != NULL | |
7894 | && r_type == R_PPC_PLTREL24 | |
f75e0e33 | 7895 | && rel->r_addend != 0) |
ab96bf03 AM |
7896 | { |
7897 | /* R_PPC_PLTREL24 is rather special. If non-zero, the | |
7898 | addend specifies the GOT pointer offset within .got2. */ | |
7899 | rel->r_addend += got2->output_offset; | |
7900 | } | |
53291d1f AM |
7901 | if (r_type != R_PPC_RELAX_PLT |
7902 | && r_type != R_PPC_RELAX_PLTREL24 | |
7903 | && r_type != R_PPC_RELAX) | |
c316a17c | 7904 | goto copy_reloc; |
ab96bf03 AM |
7905 | } |
7906 | ||
7619e7c7 AM |
7907 | /* TLS optimizations. Replace instruction sequences and relocs |
7908 | based on information we collected in tls_optimize. We edit | |
7909 | RELOCS so that --emit-relocs will output something sensible | |
7910 | for the final instruction stream. */ | |
7911 | tls_mask = 0; | |
7912 | tls_gd = 0; | |
727fc41e AM |
7913 | if (h != NULL) |
7914 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
7915 | else if (local_got_offsets != NULL) | |
7619e7c7 | 7916 | { |
e054468f | 7917 | struct plt_entry **local_plt; |
727fc41e | 7918 | char *lgot_masks; |
e054468f AM |
7919 | local_plt |
7920 | = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info); | |
7921 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
727fc41e | 7922 | tls_mask = lgot_masks[r_symndx]; |
7619e7c7 AM |
7923 | } |
7924 | ||
7925 | /* Ensure reloc mapping code below stays sane. */ | |
7926 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
7927 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
7928 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
7929 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
7930 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
7931 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
7932 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
7933 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
7934 | abort (); | |
7935 | switch (r_type) | |
7936 | { | |
7937 | default: | |
7938 | break; | |
7939 | ||
7940 | case R_PPC_GOT_TPREL16: | |
7941 | case R_PPC_GOT_TPREL16_LO: | |
e054468f | 7942 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7943 | && (tls_mask & TLS_TPREL) == 0) |
7944 | { | |
7945 | bfd_vma insn; | |
91d6fa6a | 7946 | |
c316a17c AM |
7947 | insn = bfd_get_32 (output_bfd, |
7948 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7949 | insn &= 31 << 21; |
7950 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
c316a17c AM |
7951 | bfd_put_32 (output_bfd, insn, |
7952 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7953 | r_type = R_PPC_TPREL16_HA; |
7954 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7955 | } | |
7956 | break; | |
7957 | ||
7958 | case R_PPC_TLS: | |
e054468f | 7959 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7960 | && (tls_mask & TLS_TPREL) == 0) |
7961 | { | |
2d0f3896 AM |
7962 | bfd_vma insn; |
7963 | ||
7619e7c7 | 7964 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
2d0f3896 AM |
7965 | insn = _bfd_elf_ppc_at_tls_transform (insn, 2); |
7966 | if (insn == 0) | |
7619e7c7 | 7967 | abort (); |
7619e7c7 AM |
7968 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
7969 | r_type = R_PPC_TPREL16_LO; | |
7970 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4fe5ca5b | 7971 | |
7619e7c7 | 7972 | /* Was PPC_TLS which sits on insn boundary, now |
4fe5ca5b GM |
7973 | PPC_TPREL16_LO which is at low-order half-word. */ |
7974 | rel->r_offset += d_offset; | |
7619e7c7 AM |
7975 | } |
7976 | break; | |
7977 | ||
7978 | case R_PPC_GOT_TLSGD16_HI: | |
7979 | case R_PPC_GOT_TLSGD16_HA: | |
7980 | tls_gd = TLS_TPRELGD; | |
e054468f | 7981 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
7619e7c7 AM |
7982 | goto tls_gdld_hi; |
7983 | break; | |
7984 | ||
7985 | case R_PPC_GOT_TLSLD16_HI: | |
7986 | case R_PPC_GOT_TLSLD16_HA: | |
e054468f | 7987 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 AM |
7988 | { |
7989 | tls_gdld_hi: | |
7990 | if ((tls_mask & tls_gd) != 0) | |
7991 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
7992 | + R_PPC_GOT_TPREL16); | |
7993 | else | |
7994 | { | |
4fe5ca5b | 7995 | rel->r_offset -= d_offset; |
b86ac8e3 | 7996 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7619e7c7 AM |
7997 | r_type = R_PPC_NONE; |
7998 | } | |
7999 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8000 | } | |
8001 | break; | |
8002 | ||
8003 | case R_PPC_GOT_TLSGD16: | |
8004 | case R_PPC_GOT_TLSGD16_LO: | |
8005 | tls_gd = TLS_TPRELGD; | |
e054468f | 8006 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
b7fcf6f6 | 8007 | goto tls_ldgd_opt; |
7619e7c7 AM |
8008 | break; |
8009 | ||
8010 | case R_PPC_GOT_TLSLD16: | |
8011 | case R_PPC_GOT_TLSLD16_LO: | |
e054468f | 8012 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 | 8013 | { |
3a71aa26 | 8014 | unsigned int insn1, insn2; |
b7fcf6f6 | 8015 | bfd_vma offset; |
7619e7c7 | 8016 | |
b7fcf6f6 | 8017 | tls_ldgd_opt: |
727fc41e AM |
8018 | offset = (bfd_vma) -1; |
8019 | /* If not using the newer R_PPC_TLSGD/LD to mark | |
8020 | __tls_get_addr calls, we must trust that the call | |
8021 | stays with its arg setup insns, ie. that the next | |
8022 | reloc is the __tls_get_addr call associated with | |
8023 | the current reloc. Edit both insns. */ | |
8024 | if (input_section->has_tls_get_addr_call | |
8025 | && rel + 1 < relend | |
8026 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
8027 | htab->tls_get_addr)) | |
8028 | offset = rel[1].r_offset; | |
b86ac8e3 AM |
8029 | /* We read the low GOT_TLS insn because we need to keep |
8030 | the destination reg. It may be something other than | |
8031 | the usual r3, and moved to r3 before the call by | |
8032 | intervening code. */ | |
8033 | insn1 = bfd_get_32 (output_bfd, | |
8034 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8035 | if ((tls_mask & tls_gd) != 0) |
8036 | { | |
8037 | /* IE */ | |
b86ac8e3 | 8038 | insn1 &= (0x1f << 21) | (0x1f << 16); |
b7fcf6f6 | 8039 | insn1 |= 32 << 26; /* lwz */ |
727fc41e AM |
8040 | if (offset != (bfd_vma) -1) |
8041 | { | |
f58d5a2d | 8042 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8043 | insn2 = 0x7c631214; /* add 3,3,2 */ |
8044 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8045 | } | |
b7fcf6f6 AM |
8046 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) |
8047 | + R_PPC_GOT_TPREL16); | |
8048 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8049 | } | |
8050 | else | |
8051 | { | |
8052 | /* LE */ | |
b86ac8e3 AM |
8053 | insn1 &= 0x1f << 21; |
8054 | insn1 |= 0x3c020000; /* addis r,2,0 */ | |
7619e7c7 AM |
8055 | if (tls_gd == 0) |
8056 | { | |
b7fcf6f6 | 8057 | /* Was an LD reloc. */ |
1d483afe AM |
8058 | for (r_symndx = 0; |
8059 | r_symndx < symtab_hdr->sh_info; | |
8060 | r_symndx++) | |
8061 | if (local_sections[r_symndx] == sec) | |
8062 | break; | |
8063 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8064 | r_symndx = STN_UNDEF; |
b7fcf6f6 | 8065 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8066 | if (r_symndx != STN_UNDEF) |
1d483afe AM |
8067 | rel->r_addend -= (local_syms[r_symndx].st_value |
8068 | + sec->output_offset | |
8069 | + sec->output_section->vma); | |
7619e7c7 | 8070 | } |
b7fcf6f6 AM |
8071 | r_type = R_PPC_TPREL16_HA; |
8072 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
727fc41e AM |
8073 | if (offset != (bfd_vma) -1) |
8074 | { | |
8075 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8076 | rel[1].r_offset = offset + d_offset; | |
8077 | rel[1].r_addend = rel->r_addend; | |
8078 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8079 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8080 | } | |
b7fcf6f6 AM |
8081 | } |
8082 | bfd_put_32 (output_bfd, insn1, | |
8083 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8084 | if (tls_gd == 0) |
8085 | { | |
8086 | /* We changed the symbol on an LD reloc. Start over | |
8087 | in order to get h, sym, sec etc. right. */ | |
c316a17c | 8088 | goto again; |
7619e7c7 | 8089 | } |
252b5132 | 8090 | } |
7619e7c7 | 8091 | break; |
727fc41e AM |
8092 | |
8093 | case R_PPC_TLSGD: | |
e054468f | 8094 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
727fc41e AM |
8095 | { |
8096 | unsigned int insn2; | |
8097 | bfd_vma offset = rel->r_offset; | |
8098 | ||
8099 | if ((tls_mask & TLS_TPRELGD) != 0) | |
8100 | { | |
8101 | /* IE */ | |
8102 | r_type = R_PPC_NONE; | |
8103 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
8104 | } | |
8105 | else | |
8106 | { | |
8107 | /* LE */ | |
8108 | r_type = R_PPC_TPREL16_LO; | |
8109 | rel->r_offset += d_offset; | |
8110 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8111 | } | |
8112 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8113 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8114 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8115 | BFD_ASSERT (offset == rel[1].r_offset); | |
f58d5a2d | 8116 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8117 | } |
8118 | break; | |
8119 | ||
8120 | case R_PPC_TLSLD: | |
e054468f | 8121 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
727fc41e AM |
8122 | { |
8123 | unsigned int insn2; | |
8124 | ||
8125 | for (r_symndx = 0; | |
8126 | r_symndx < symtab_hdr->sh_info; | |
8127 | r_symndx++) | |
8128 | if (local_sections[r_symndx] == sec) | |
8129 | break; | |
8130 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8131 | r_symndx = STN_UNDEF; |
727fc41e | 8132 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8133 | if (r_symndx != STN_UNDEF) |
727fc41e AM |
8134 | rel->r_addend -= (local_syms[r_symndx].st_value |
8135 | + sec->output_offset | |
8136 | + sec->output_section->vma); | |
8137 | ||
8138 | rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8139 | rel->r_offset += d_offset; | |
8140 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8141 | bfd_put_32 (output_bfd, insn2, | |
8142 | contents + rel->r_offset - d_offset); | |
8143 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8144 | BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); | |
f58d5a2d | 8145 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
c316a17c | 8146 | goto again; |
727fc41e AM |
8147 | } |
8148 | break; | |
7619e7c7 AM |
8149 | } |
8150 | ||
8151 | /* Handle other relocations that tweak non-addend part of insn. */ | |
8152 | branch_bit = 0; | |
8153 | switch (r_type) | |
8154 | { | |
8155 | default: | |
8156 | break; | |
8157 | ||
8158 | /* Branch taken prediction relocations. */ | |
8159 | case R_PPC_ADDR14_BRTAKEN: | |
8160 | case R_PPC_REL14_BRTAKEN: | |
8161 | branch_bit = BRANCH_PREDICT_BIT; | |
1a0670f3 | 8162 | /* Fall through. */ |
7619e7c7 | 8163 | |
4cc11e76 | 8164 | /* Branch not taken prediction relocations. */ |
7619e7c7 AM |
8165 | case R_PPC_ADDR14_BRNTAKEN: |
8166 | case R_PPC_REL14_BRNTAKEN: | |
91d6fa6a NC |
8167 | { |
8168 | bfd_vma insn; | |
7619e7c7 | 8169 | |
91d6fa6a NC |
8170 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
8171 | insn &= ~BRANCH_PREDICT_BIT; | |
8172 | insn |= branch_bit; | |
7619e7c7 | 8173 | |
91d6fa6a NC |
8174 | from = (rel->r_offset |
8175 | + input_section->output_offset | |
8176 | + input_section->output_section->vma); | |
7619e7c7 | 8177 | |
91d6fa6a NC |
8178 | /* Invert 'y' bit if not the default. */ |
8179 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
8180 | insn ^= BRANCH_PREDICT_BIT; | |
8181 | ||
8182 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
8183 | break; | |
8184 | } | |
252b5132 RH |
8185 | } |
8186 | ||
d3e454b9 AM |
8187 | if (ELIMINATE_COPY_RELOCS |
8188 | && h != NULL | |
8189 | && !h->def_regular | |
8190 | && h->protected_def | |
8191 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8192 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8193 | && htab->params->pic_fixup > 0) | |
8194 | { | |
8195 | /* Convert lis;addi or lis;load/store accessing a protected | |
8196 | variable defined in a shared library to PIC. */ | |
8197 | unsigned int insn; | |
8198 | ||
8199 | if (r_type == R_PPC_ADDR16_HA) | |
8200 | { | |
8201 | insn = bfd_get_32 (output_bfd, | |
8202 | contents + rel->r_offset - d_offset); | |
8203 | if ((insn & (0x3f << 26)) == (15u << 26) | |
8204 | && (insn & (0x1f << 16)) == 0 /* lis */) | |
8205 | { | |
8206 | bfd_byte *p; | |
8207 | bfd_vma off; | |
8208 | bfd_vma got_addr; | |
8209 | ||
8210 | p = (contents + input_section->size | |
8211 | - relax_info->workaround_size | |
8212 | - relax_info->picfixup_size | |
8213 | + picfixup_size); | |
8214 | off = (p - contents) - (rel->r_offset - d_offset); | |
8215 | if (off > 0x1fffffc || (off & 3) != 0) | |
8216 | info->callbacks->einfo | |
8217 | (_("%P: %H: fixup branch overflow\n"), | |
8218 | input_bfd, input_section, rel->r_offset); | |
8219 | ||
8220 | bfd_put_32 (output_bfd, B | off, | |
8221 | contents + rel->r_offset - d_offset); | |
8222 | got_addr = (htab->got->output_section->vma | |
8223 | + htab->got->output_offset | |
8224 | + (h->got.offset & ~1)); | |
c316a17c AM |
8225 | wrel->r_offset = (p - contents) + d_offset; |
8226 | wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA); | |
8227 | wrel->r_addend = got_addr; | |
d3e454b9 AM |
8228 | insn &= ~0xffff; |
8229 | insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff; | |
8230 | bfd_put_32 (output_bfd, insn, p); | |
8231 | ||
8232 | /* Convert lis to lwz, loading address from GOT. */ | |
8233 | insn &= ~0xffff; | |
8234 | insn ^= (32u ^ 15u) << 26; | |
8235 | insn |= (insn & (0x1f << 21)) >> 5; | |
8236 | insn |= got_addr & 0xffff; | |
8237 | bfd_put_32 (output_bfd, insn, p + 4); | |
8238 | ||
8239 | bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8); | |
8240 | picfixup_size += 12; | |
8241 | ||
8242 | /* Use one of the spare relocs, so --emit-relocs | |
8243 | output is reasonable. */ | |
8244 | memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); | |
c316a17c AM |
8245 | wrel++, rel++; |
8246 | rel->r_offset = wrel[-1].r_offset + 4; | |
d3e454b9 | 8247 | rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO); |
c316a17c | 8248 | rel->r_addend = wrel[-1].r_addend; |
d3e454b9 AM |
8249 | |
8250 | /* Continue on as if we had a got reloc, to output | |
8251 | dynamic reloc. */ | |
8252 | r_type = R_PPC_GOT16_LO; | |
8253 | } | |
8254 | else | |
8255 | info->callbacks->einfo | |
8256 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8257 | input_bfd, input_section, rel->r_offset, | |
8258 | "R_PPC_ADDR16_HA", insn); | |
8259 | } | |
8260 | else if (r_type == R_PPC_ADDR16_LO) | |
8261 | { | |
8262 | insn = bfd_get_32 (output_bfd, | |
8263 | contents + rel->r_offset - d_offset); | |
8264 | if ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
8265 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
8266 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
8267 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
8268 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
8269 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
8270 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
8271 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
8272 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
8273 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
8274 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
8275 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
8276 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
8277 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
8278 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
8279 | && (insn & 3) != 1) | |
8280 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
8281 | && ((insn & 3) == 0 || (insn & 3) == 3))) | |
8282 | { | |
8283 | /* Arrange to apply the reloc addend, if any. */ | |
8284 | relocation = 0; | |
8285 | unresolved_reloc = FALSE; | |
8286 | rel->r_info = ELF32_R_INFO (0, r_type); | |
8287 | } | |
8288 | else | |
8289 | info->callbacks->einfo | |
8290 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8291 | input_bfd, input_section, rel->r_offset, | |
8292 | "R_PPC_ADDR16_LO", insn); | |
8293 | } | |
8294 | } | |
8295 | ||
e054468f | 8296 | ifunc = NULL; |
25f23106 | 8297 | if (!htab->is_vxworks) |
e054468f | 8298 | { |
de972ffa AM |
8299 | struct plt_entry *ent; |
8300 | ||
e054468f AM |
8301 | if (h != NULL) |
8302 | { | |
8303 | if (h->type == STT_GNU_IFUNC) | |
8304 | ifunc = &h->plt.plist; | |
8305 | } | |
de972ffa AM |
8306 | else if (local_got_offsets != NULL |
8307 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
e054468f | 8308 | { |
de972ffa | 8309 | struct plt_entry **local_plt; |
e054468f | 8310 | |
de972ffa AM |
8311 | local_plt = (struct plt_entry **) (local_got_offsets |
8312 | + symtab_hdr->sh_info); | |
8313 | ifunc = local_plt + r_symndx; | |
e054468f | 8314 | } |
e054468f | 8315 | |
de972ffa AM |
8316 | ent = NULL; |
8317 | if (ifunc != NULL | |
0e1862bb | 8318 | && (!bfd_link_pic (info) |
de972ffa AM |
8319 | || is_branch_reloc (r_type))) |
8320 | { | |
8321 | addend = 0; | |
0e1862bb | 8322 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
de972ffa AM |
8323 | addend = rel->r_addend; |
8324 | ent = find_plt_ent (ifunc, got2, addend); | |
8325 | } | |
8326 | if (ent != NULL) | |
8327 | { | |
888a7fc3 AM |
8328 | if (bfd_link_pic (info) |
8329 | && ent->sec != got2 | |
8330 | && htab->plt_type != PLT_NEW | |
8331 | && (!htab->elf.dynamic_sections_created | |
8332 | || h == NULL | |
8333 | || h->dynindx == -1)) | |
8334 | { | |
8335 | /* Uh oh, we are going to create a pic glink stub | |
8336 | for an ifunc (here for h == NULL and later in | |
8337 | finish_dynamic_symbol for h != NULL), and | |
8338 | apparently are using code compiled with | |
8339 | -mbss-plt. The difficulty is that -mbss-plt code | |
8340 | gives no indication via a magic PLTREL24 addend | |
8341 | whether r30 is equal to _GLOBAL_OFFSET_TABLE_ or | |
8342 | is pointing into a .got2 section (and how far | |
8343 | into .got2). */ | |
8344 | info->callbacks->einfo | |
8345 | (_("%X%P: %H: unsupported bss-plt -fPIC ifunc %s\n"), | |
8346 | input_bfd, input_section, rel->r_offset, sym_name); | |
8347 | } | |
e054468f AM |
8348 | if (h == NULL && (ent->plt.offset & 1) == 0) |
8349 | { | |
8350 | Elf_Internal_Rela rela; | |
8351 | bfd_byte *loc; | |
8352 | ||
8353 | rela.r_offset = (htab->iplt->output_section->vma | |
8354 | + htab->iplt->output_offset | |
8355 | + ent->plt.offset); | |
8356 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8357 | rela.r_addend = relocation; | |
25f23106 AM |
8358 | loc = htab->reliplt->contents; |
8359 | loc += (htab->reliplt->reloc_count++ | |
8360 | * sizeof (Elf32_External_Rela)); | |
e054468f AM |
8361 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
8362 | ||
8363 | ent->plt.offset |= 1; | |
8364 | } | |
8365 | if (h == NULL && (ent->glink_offset & 1) == 0) | |
8366 | { | |
a7f2871e AM |
8367 | unsigned char *p = ((unsigned char *) htab->glink->contents |
8368 | + ent->glink_offset); | |
8369 | write_glink_stub (ent, htab->iplt, p, info); | |
e054468f AM |
8370 | ent->glink_offset |= 1; |
8371 | } | |
8372 | ||
8373 | unresolved_reloc = FALSE; | |
8374 | if (htab->plt_type == PLT_NEW | |
8375 | || !htab->elf.dynamic_sections_created | |
c7e17e05 AM |
8376 | || h == NULL |
8377 | || h->dynindx == -1) | |
e054468f AM |
8378 | relocation = (htab->glink->output_section->vma |
8379 | + htab->glink->output_offset | |
8380 | + (ent->glink_offset & ~1)); | |
8381 | else | |
8382 | relocation = (htab->plt->output_section->vma | |
8383 | + htab->plt->output_offset | |
8384 | + ent->plt.offset); | |
8385 | } | |
8386 | } | |
8387 | ||
7619e7c7 AM |
8388 | addend = rel->r_addend; |
8389 | tls_type = 0; | |
8390 | howto = NULL; | |
55fd94b0 AM |
8391 | if (r_type < R_PPC_max) |
8392 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 8393 | switch (r_type) |
252b5132 RH |
8394 | { |
8395 | default: | |
25f53a85 | 8396 | info->callbacks->einfo |
8de848d8 | 8397 | (_("%P: %B: unknown relocation type %d for symbol %s\n"), |
d003868e | 8398 | input_bfd, (int) r_type, sym_name); |
252b5132 RH |
8399 | |
8400 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8401 | ret = FALSE; |
c316a17c | 8402 | goto copy_reloc; |
252b5132 | 8403 | |
7619e7c7 AM |
8404 | case R_PPC_NONE: |
8405 | case R_PPC_TLS: | |
727fc41e AM |
8406 | case R_PPC_TLSGD: |
8407 | case R_PPC_TLSLD: | |
7619e7c7 AM |
8408 | case R_PPC_EMB_MRKREF: |
8409 | case R_PPC_GNU_VTINHERIT: | |
8410 | case R_PPC_GNU_VTENTRY: | |
c316a17c | 8411 | goto copy_reloc; |
7595d193 | 8412 | |
7619e7c7 AM |
8413 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
8414 | address in the GOT as relocation value instead of the | |
8415 | symbol's value itself. Also, create a GOT entry for the | |
8416 | symbol and put the symbol value there. */ | |
8417 | case R_PPC_GOT_TLSGD16: | |
8418 | case R_PPC_GOT_TLSGD16_LO: | |
8419 | case R_PPC_GOT_TLSGD16_HI: | |
8420 | case R_PPC_GOT_TLSGD16_HA: | |
8421 | tls_type = TLS_TLS | TLS_GD; | |
8422 | goto dogot; | |
8423 | ||
8424 | case R_PPC_GOT_TLSLD16: | |
8425 | case R_PPC_GOT_TLSLD16_LO: | |
8426 | case R_PPC_GOT_TLSLD16_HI: | |
8427 | case R_PPC_GOT_TLSLD16_HA: | |
8428 | tls_type = TLS_TLS | TLS_LD; | |
8429 | goto dogot; | |
8430 | ||
8431 | case R_PPC_GOT_TPREL16: | |
8432 | case R_PPC_GOT_TPREL16_LO: | |
8433 | case R_PPC_GOT_TPREL16_HI: | |
8434 | case R_PPC_GOT_TPREL16_HA: | |
8435 | tls_type = TLS_TLS | TLS_TPREL; | |
8436 | goto dogot; | |
8437 | ||
8438 | case R_PPC_GOT_DTPREL16: | |
8439 | case R_PPC_GOT_DTPREL16_LO: | |
8440 | case R_PPC_GOT_DTPREL16_HI: | |
8441 | case R_PPC_GOT_DTPREL16_HA: | |
8442 | tls_type = TLS_TLS | TLS_DTPREL; | |
8443 | goto dogot; | |
8444 | ||
8445 | case R_PPC_GOT16: | |
8446 | case R_PPC_GOT16_LO: | |
8447 | case R_PPC_GOT16_HI: | |
8448 | case R_PPC_GOT16_HA: | |
727fc41e | 8449 | tls_mask = 0; |
7619e7c7 AM |
8450 | dogot: |
8451 | { | |
8452 | /* Relocation is to the entry for this symbol in the global | |
8453 | offset table. */ | |
8454 | bfd_vma off; | |
8455 | bfd_vma *offp; | |
8456 | unsigned long indx; | |
8457 | ||
8458 | if (htab->got == NULL) | |
8459 | abort (); | |
8460 | ||
8461 | indx = 0; | |
8462 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 8463 | && (h == NULL |
f5385ebf | 8464 | || !h->def_dynamic)) |
7619e7c7 AM |
8465 | offp = &htab->tlsld_got.offset; |
8466 | else if (h != NULL) | |
8467 | { | |
8468 | bfd_boolean dyn; | |
8469 | dyn = htab->elf.dynamic_sections_created; | |
0e1862bb L |
8470 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
8471 | || (bfd_link_pic (info) | |
7619e7c7 AM |
8472 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
8473 | /* This is actually a static link, or it is a | |
8474 | -Bsymbolic link and the symbol is defined | |
8475 | locally, or the symbol was forced to be local | |
8476 | because of a version file. */ | |
8477 | ; | |
8478 | else | |
8479 | { | |
14acf4dc | 8480 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 AM |
8481 | indx = h->dynindx; |
8482 | unresolved_reloc = FALSE; | |
8483 | } | |
8484 | offp = &h->got.offset; | |
8485 | } | |
8486 | else | |
8487 | { | |
8488 | if (local_got_offsets == NULL) | |
8489 | abort (); | |
8490 | offp = &local_got_offsets[r_symndx]; | |
8491 | } | |
8492 | ||
8493 | /* The offset must always be a multiple of 4. We use the | |
8494 | least significant bit to record whether we have already | |
8495 | processed this entry. */ | |
8496 | off = *offp; | |
8497 | if ((off & 1) != 0) | |
8498 | off &= ~1; | |
8499 | else | |
8500 | { | |
70bccea4 AM |
8501 | unsigned int tls_m = (tls_mask |
8502 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
8503 | | TLS_TPREL | TLS_TPRELGD)); | |
8504 | ||
8505 | if (offp == &htab->tlsld_got.offset) | |
8506 | tls_m = TLS_LD; | |
8507 | else if (h == NULL | |
f5385ebf | 8508 | || !h->def_dynamic) |
70bccea4 AM |
8509 | tls_m &= ~TLS_LD; |
8510 | ||
8511 | /* We might have multiple got entries for this sym. | |
8512 | Initialize them all. */ | |
8513 | do | |
7619e7c7 | 8514 | { |
70bccea4 AM |
8515 | int tls_ty = 0; |
8516 | ||
8517 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 8518 | { |
70bccea4 AM |
8519 | tls_ty = TLS_TLS | TLS_LD; |
8520 | tls_m &= ~TLS_LD; | |
8521 | } | |
8522 | else if ((tls_m & TLS_GD) != 0) | |
8523 | { | |
8524 | tls_ty = TLS_TLS | TLS_GD; | |
8525 | tls_m &= ~TLS_GD; | |
8526 | } | |
8527 | else if ((tls_m & TLS_DTPREL) != 0) | |
8528 | { | |
8529 | tls_ty = TLS_TLS | TLS_DTPREL; | |
8530 | tls_m &= ~TLS_DTPREL; | |
8531 | } | |
8532 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
8533 | { | |
8534 | tls_ty = TLS_TLS | TLS_TPREL; | |
8535 | tls_m = 0; | |
7619e7c7 | 8536 | } |
7619e7c7 | 8537 | |
70bccea4 | 8538 | /* Generate relocs for the dynamic linker. */ |
0e1862bb | 8539 | if ((bfd_link_pic (info) || indx != 0) |
d6e14abc AM |
8540 | && (offp == &htab->tlsld_got.offset |
8541 | || h == NULL | |
4e795f50 AM |
8542 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
8543 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 8544 | { |
91e21fb7 | 8545 | asection *rsec = htab->relgot; |
91d6fa6a | 8546 | bfd_byte * loc; |
91e21fb7 | 8547 | |
0bed072f AM |
8548 | if (ifunc != NULL) |
8549 | rsec = htab->reliplt; | |
70bccea4 AM |
8550 | outrel.r_offset = (htab->got->output_section->vma |
8551 | + htab->got->output_offset | |
8552 | + off); | |
e515b051 | 8553 | outrel.r_addend = 0; |
70bccea4 AM |
8554 | if (tls_ty & (TLS_LD | TLS_GD)) |
8555 | { | |
8556 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
8557 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8558 | { | |
25f23106 AM |
8559 | loc = rsec->contents; |
8560 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8561 | * sizeof (Elf32_External_Rela)); |
8562 | bfd_elf32_swap_reloca_out (output_bfd, | |
8563 | &outrel, loc); | |
e515b051 | 8564 | outrel.r_offset += 4; |
70bccea4 AM |
8565 | outrel.r_info |
8566 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
8567 | } |
8568 | } | |
8569 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
8570 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
8571 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8572 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
25f23106 | 8573 | else if (indx != 0) |
70bccea4 | 8574 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); |
25f23106 AM |
8575 | else if (ifunc != NULL) |
8576 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8577 | else | |
8578 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
d6e14abc | 8579 | if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) |
e515b051 AM |
8580 | { |
8581 | outrel.r_addend += relocation; | |
8582 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
989f9879 AM |
8583 | { |
8584 | if (htab->elf.tls_sec == NULL) | |
8585 | outrel.r_addend = 0; | |
8586 | else | |
8587 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
8588 | } | |
e515b051 | 8589 | } |
25f23106 AM |
8590 | loc = rsec->contents; |
8591 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8592 | * sizeof (Elf32_External_Rela)); |
8593 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
8594 | } |
8595 | ||
70bccea4 AM |
8596 | /* Init the .got section contents if we're not |
8597 | emitting a reloc. */ | |
8598 | else | |
7619e7c7 | 8599 | { |
70bccea4 AM |
8600 | bfd_vma value = relocation; |
8601 | ||
7b609f53 AM |
8602 | if (tls_ty == (TLS_TLS | TLS_LD)) |
8603 | value = 1; | |
8604 | else if (tls_ty != 0) | |
70bccea4 | 8605 | { |
989f9879 AM |
8606 | if (htab->elf.tls_sec == NULL) |
8607 | value = 0; | |
8608 | else | |
8609 | { | |
8610 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
8611 | if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8612 | value += DTP_OFFSET - TP_OFFSET; | |
8613 | } | |
70bccea4 | 8614 | |
7b609f53 AM |
8615 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8616 | { | |
8617 | bfd_put_32 (output_bfd, value, | |
8618 | htab->got->contents + off + 4); | |
8619 | value = 1; | |
8620 | } | |
70bccea4 | 8621 | } |
70bccea4 AM |
8622 | bfd_put_32 (output_bfd, value, |
8623 | htab->got->contents + off); | |
7619e7c7 | 8624 | } |
70bccea4 AM |
8625 | |
8626 | off += 4; | |
8627 | if (tls_ty & (TLS_LD | TLS_GD)) | |
8628 | off += 4; | |
7619e7c7 | 8629 | } |
70bccea4 AM |
8630 | while (tls_m != 0); |
8631 | ||
8632 | off = *offp; | |
8633 | *offp = off | 1; | |
7619e7c7 AM |
8634 | } |
8635 | ||
8636 | if (off >= (bfd_vma) -2) | |
8637 | abort (); | |
8638 | ||
70bccea4 AM |
8639 | if ((tls_type & TLS_TLS) != 0) |
8640 | { | |
8641 | if (tls_type != (TLS_TLS | TLS_LD)) | |
8642 | { | |
8643 | if ((tls_mask & TLS_LD) != 0 | |
8644 | && !(h == NULL | |
f5385ebf | 8645 | || !h->def_dynamic)) |
70bccea4 AM |
8646 | off += 8; |
8647 | if (tls_type != (TLS_TLS | TLS_GD)) | |
8648 | { | |
8649 | if ((tls_mask & TLS_GD) != 0) | |
8650 | off += 8; | |
8651 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
8652 | { | |
8653 | if ((tls_mask & TLS_DTPREL) != 0) | |
8654 | off += 4; | |
8655 | } | |
8656 | } | |
8657 | } | |
8658 | } | |
8659 | ||
d3e454b9 AM |
8660 | /* If here for a picfixup, we're done. */ |
8661 | if (r_type != ELF32_R_TYPE (rel->r_info)) | |
c316a17c | 8662 | goto copy_reloc; |
d3e454b9 | 8663 | |
e87d4038 AM |
8664 | relocation = (htab->got->output_section->vma |
8665 | + htab->got->output_offset | |
8666 | + off | |
8667 | - SYM_VAL (htab->elf.hgot)); | |
7619e7c7 AM |
8668 | |
8669 | /* Addends on got relocations don't make much sense. | |
8670 | x+off@got is actually x@got+off, and since the got is | |
8671 | generated by a hash table traversal, the value in the | |
8672 | got at entry m+n bears little relation to the entry m. */ | |
8673 | if (addend != 0) | |
25f53a85 | 8674 | info->callbacks->einfo |
8de848d8 | 8675 | (_("%P: %H: non-zero addend on %s reloc against `%s'\n"), |
25f53a85 | 8676 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 8677 | howto->name, |
7619e7c7 AM |
8678 | sym_name); |
8679 | } | |
86c95733 | 8680 | break; |
7619e7c7 | 8681 | |
86c95733 | 8682 | /* Relocations that need no special processing. */ |
7619e7c7 | 8683 | case R_PPC_LOCAL24PC: |
252b5132 RH |
8684 | /* It makes no sense to point a local relocation |
8685 | at a symbol not in this object. */ | |
7b609f53 | 8686 | if (unresolved_reloc) |
252b5132 | 8687 | { |
1a72702b AM |
8688 | (*info->callbacks->undefined_symbol) (info, |
8689 | h->root.root.string, | |
8690 | input_bfd, | |
8691 | input_section, | |
8692 | rel->r_offset, | |
8693 | TRUE); | |
c316a17c | 8694 | goto copy_reloc; |
252b5132 | 8695 | } |
888a7fc3 AM |
8696 | if (h != NULL && h->type == STT_GNU_IFUNC && bfd_link_pic (info)) |
8697 | { | |
8698 | /* @local on an ifunc does not really make sense since | |
8699 | the ifunc resolver can take you anywhere. More | |
8700 | seriously, calls to ifuncs must go through a plt call | |
8701 | stub, and for pic the plt call stubs uses r30 to | |
8702 | access the PLT. The problem is that a call that is | |
8703 | local won't have the +32k reloc addend trick marking | |
8704 | -fPIC code, so the linker won't know whether r30 is | |
8705 | _GLOBAL_OFFSET_TABLE_ or pointing into a .got2 section. */ | |
8706 | info->callbacks->einfo (_("%X%P: %H: @local call to ifunc %s\n"), | |
8707 | input_bfd, input_section, rel->r_offset, | |
8708 | h->root.root.string); | |
8709 | } | |
252b5132 RH |
8710 | break; |
8711 | ||
7619e7c7 AM |
8712 | case R_PPC_DTPREL16: |
8713 | case R_PPC_DTPREL16_LO: | |
8714 | case R_PPC_DTPREL16_HI: | |
8715 | case R_PPC_DTPREL16_HA: | |
989f9879 AM |
8716 | if (htab->elf.tls_sec != NULL) |
8717 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8718 | break; |
8719 | ||
70bccea4 AM |
8720 | /* Relocations that may need to be propagated if this is a shared |
8721 | object. */ | |
7619e7c7 AM |
8722 | case R_PPC_TPREL16: |
8723 | case R_PPC_TPREL16_LO: | |
8724 | case R_PPC_TPREL16_HI: | |
8725 | case R_PPC_TPREL16_HA: | |
766bc656 AM |
8726 | if (h != NULL |
8727 | && h->root.type == bfd_link_hash_undefweak | |
8728 | && h->dynindx == -1) | |
8729 | { | |
8730 | /* Make this relocation against an undefined weak symbol | |
8731 | resolve to zero. This is really just a tweak, since | |
8732 | code using weak externs ought to check that they are | |
8733 | defined before using them. */ | |
8734 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
8735 | unsigned int insn = bfd_get_32 (output_bfd, p); | |
8736 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 2); | |
8737 | if (insn != 0) | |
8738 | bfd_put_32 (output_bfd, insn, p); | |
8739 | break; | |
8740 | } | |
989f9879 AM |
8741 | if (htab->elf.tls_sec != NULL) |
8742 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8743 | /* The TPREL16 relocs shouldn't really be used in shared |
8744 | libs as they will result in DT_TEXTREL being set, but | |
8745 | support them anyway. */ | |
8746 | goto dodyn; | |
8747 | ||
8748 | case R_PPC_TPREL32: | |
989f9879 AM |
8749 | if (htab->elf.tls_sec != NULL) |
8750 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8751 | goto dodyn; |
8752 | ||
8753 | case R_PPC_DTPREL32: | |
989f9879 AM |
8754 | if (htab->elf.tls_sec != NULL) |
8755 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8756 | goto dodyn; |
8757 | ||
e515b051 AM |
8758 | case R_PPC_DTPMOD32: |
8759 | relocation = 1; | |
8760 | addend = 0; | |
8761 | goto dodyn; | |
8762 | ||
d7128ce4 AM |
8763 | case R_PPC_REL16: |
8764 | case R_PPC_REL16_LO: | |
8765 | case R_PPC_REL16_HI: | |
8766 | case R_PPC_REL16_HA: | |
a680de9a | 8767 | case R_PPC_REL16DX_HA: |
d7128ce4 AM |
8768 | break; |
8769 | ||
7619e7c7 | 8770 | case R_PPC_REL32: |
625af618 AM |
8771 | if (h == NULL || h == htab->elf.hgot) |
8772 | break; | |
8773 | /* fall through */ | |
8774 | ||
8775 | case R_PPC_ADDR32: | |
8776 | case R_PPC_ADDR16: | |
8777 | case R_PPC_ADDR16_LO: | |
8778 | case R_PPC_ADDR16_HI: | |
8779 | case R_PPC_ADDR16_HA: | |
8780 | case R_PPC_UADDR32: | |
8781 | case R_PPC_UADDR16: | |
8782 | goto dodyn; | |
8783 | ||
b9c361e0 JL |
8784 | case R_PPC_VLE_REL8: |
8785 | case R_PPC_VLE_REL15: | |
8786 | case R_PPC_VLE_REL24: | |
625af618 | 8787 | case R_PPC_REL24: |
7619e7c7 AM |
8788 | case R_PPC_REL14: |
8789 | case R_PPC_REL14_BRTAKEN: | |
8790 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
8791 | /* If these relocations are not to a named symbol, they can be |
8792 | handled right here, no need to bother the dynamic linker. */ | |
89200bf8 | 8793 | if (SYMBOL_CALLS_LOCAL (info, h) |
3b36f7e6 | 8794 | || h == htab->elf.hgot) |
252b5132 | 8795 | break; |
70bccea4 | 8796 | /* fall through */ |
252b5132 | 8797 | |
7619e7c7 | 8798 | case R_PPC_ADDR24: |
7619e7c7 AM |
8799 | case R_PPC_ADDR14: |
8800 | case R_PPC_ADDR14_BRTAKEN: | |
8801 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 8802 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
8803 | break; |
8804 | /* fall through */ | |
8805 | ||
7619e7c7 | 8806 | dodyn: |
3348747a NS |
8807 | if ((input_section->flags & SEC_ALLOC) == 0 |
8808 | || is_vxworks_tls) | |
c87b5a93 | 8809 | break; |
c87b5a93 | 8810 | |
0e1862bb | 8811 | if ((bfd_link_pic (info) |
89200bf8 AM |
8812 | && !(h != NULL |
8813 | && ((h->root.type == bfd_link_hash_undefined | |
8814 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
8815 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
8816 | || (h->root.type == bfd_link_hash_undefweak | |
8817 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) | |
1d483afe | 8818 | && (must_be_dyn_reloc (info, r_type) |
f6c52c13 | 8819 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe | 8820 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 8821 | && !bfd_link_pic (info) |
ee05f2fe AM |
8822 | && h != NULL |
8823 | && h->dynindx != -1 | |
f5385ebf | 8824 | && !h->non_got_ref |
d3e454b9 AM |
8825 | && !h->def_regular |
8826 | && !(h->protected_def | |
8827 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8828 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8829 | && htab->params->pic_fixup > 0))) | |
252b5132 | 8830 | { |
0bb2d96a | 8831 | int skip; |
f95f8542 AM |
8832 | bfd_byte *loc; |
8833 | asection *sreloc; | |
252b5132 | 8834 | #ifdef DEBUG |
55fd94b0 AM |
8835 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
8836 | "create relocation for %s\n", | |
70bccea4 AM |
8837 | (h && h->root.root.string |
8838 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
8839 | #endif |
8840 | ||
8841 | /* When generating a shared object, these relocations | |
70bccea4 AM |
8842 | are copied into the output file to be resolved at run |
8843 | time. */ | |
f95f8542 AM |
8844 | sreloc = elf_section_data (input_section)->sreloc; |
8845 | if (ifunc) | |
8846 | sreloc = htab->reliplt; | |
252b5132 | 8847 | if (sreloc == NULL) |
f95f8542 | 8848 | return FALSE; |
252b5132 | 8849 | |
0bb2d96a | 8850 | skip = 0; |
5b914448 AM |
8851 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, |
8852 | input_section, | |
8853 | rel->r_offset); | |
0bb2d96a JJ |
8854 | if (outrel.r_offset == (bfd_vma) -1 |
8855 | || outrel.r_offset == (bfd_vma) -2) | |
8856 | skip = (int) outrel.r_offset; | |
252b5132 RH |
8857 | outrel.r_offset += (input_section->output_section->vma |
8858 | + input_section->output_offset); | |
8859 | ||
8860 | if (skip) | |
8861 | memset (&outrel, 0, sizeof outrel); | |
89200bf8 AM |
8862 | else if ((h != NULL |
8863 | && (h->root.type == bfd_link_hash_undefined | |
8864 | || h->root.type == bfd_link_hash_undefweak)) | |
8865 | || !SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 | 8866 | { |
14acf4dc | 8867 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 | 8868 | unresolved_reloc = FALSE; |
252b5132 RH |
8869 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
8870 | outrel.r_addend = rel->r_addend; | |
8871 | } | |
8872 | else | |
8873 | { | |
47388f4c AM |
8874 | outrel.r_addend = relocation + rel->r_addend; |
8875 | ||
25f23106 | 8876 | if (r_type != R_PPC_ADDR32) |
252b5132 | 8877 | { |
89200bf8 | 8878 | long indx = 0; |
252b5132 | 8879 | |
25f23106 AM |
8880 | if (ifunc != NULL) |
8881 | { | |
8882 | /* If we get here when building a static | |
8883 | executable, then the libc startup function | |
8884 | responsible for applying indirect function | |
8885 | relocations is going to complain about | |
8886 | the reloc type. | |
8887 | If we get here when building a dynamic | |
8888 | executable, it will be because we have | |
8889 | a text relocation. The dynamic loader | |
8890 | will set the text segment writable and | |
8891 | non-executable to apply text relocations. | |
8892 | So we'll segfault when trying to run the | |
8893 | indirection function to resolve the reloc. */ | |
25f53a85 | 8894 | info->callbacks->einfo |
8de848d8 | 8895 | (_("%P: %H: relocation %s for indirect " |
25f53a85 AM |
8896 | "function %s unsupported\n"), |
8897 | input_bfd, input_section, rel->r_offset, | |
25f23106 AM |
8898 | howto->name, |
8899 | sym_name); | |
8900 | ret = FALSE; | |
8901 | } | |
cf35638d | 8902 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
89200bf8 | 8903 | ; |
252b5132 RH |
8904 | else if (sec == NULL || sec->owner == NULL) |
8905 | { | |
8906 | bfd_set_error (bfd_error_bad_value); | |
89200bf8 | 8907 | ret = FALSE; |
252b5132 RH |
8908 | } |
8909 | else | |
8910 | { | |
8911 | asection *osec; | |
8912 | ||
47388f4c AM |
8913 | /* We are turning this relocation into one |
8914 | against a section symbol. It would be | |
8915 | proper to subtract the symbol's value, | |
8916 | osec->vma, from the emitted reloc addend, | |
25f23106 AM |
8917 | but ld.so expects buggy relocs. |
8918 | FIXME: Why not always use a zero index? */ | |
252b5132 RH |
8919 | osec = sec->output_section; |
8920 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
8921 | if (indx == 0) |
8922 | { | |
8923 | osec = htab->elf.text_index_section; | |
8924 | indx = elf_section_data (osec)->dynindx; | |
8925 | } | |
8926 | BFD_ASSERT (indx != 0); | |
252b5132 | 8927 | #ifdef DEBUG |
74541ad4 | 8928 | if (indx == 0) |
e460dd0d | 8929 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
55fd94b0 AM |
8930 | indx, osec->name, osec->flags, |
8931 | h->root.root.string); | |
252b5132 RH |
8932 | #endif |
8933 | } | |
8934 | ||
8935 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 | 8936 | } |
25f23106 AM |
8937 | else if (ifunc != NULL) |
8938 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8939 | else | |
8940 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
252b5132 RH |
8941 | } |
8942 | ||
947216bf AM |
8943 | loc = sreloc->contents; |
8944 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
8945 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 8946 | |
2243deae | 8947 | if (skip == -1) |
c316a17c | 8948 | goto copy_reloc; |
2243deae L |
8949 | |
8950 | /* This reloc will be computed at runtime. We clear the memory | |
8951 | so that it contains predictable value. */ | |
8952 | if (! skip | |
8953 | && ((input_section->flags & SEC_ALLOC) != 0 | |
8954 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
8955 | { | |
8956 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
8957 | addend = 0; | |
8958 | break; | |
8959 | } | |
252b5132 | 8960 | } |
252b5132 RH |
8961 | break; |
8962 | ||
32af9f6e AM |
8963 | case R_PPC_RELAX_PLT: |
8964 | case R_PPC_RELAX_PLTREL24: | |
de972ffa AM |
8965 | if (h != NULL) |
8966 | { | |
32af9f6e AM |
8967 | struct plt_entry *ent; |
8968 | bfd_vma got2_addend = 0; | |
8969 | ||
8970 | if (r_type == R_PPC_RELAX_PLTREL24) | |
8971 | { | |
0e1862bb | 8972 | if (bfd_link_pic (info)) |
32af9f6e AM |
8973 | got2_addend = addend; |
8974 | addend = 0; | |
8975 | } | |
8976 | ent = find_plt_ent (&h->plt.plist, got2, got2_addend); | |
de972ffa AM |
8977 | if (htab->plt_type == PLT_NEW) |
8978 | relocation = (htab->glink->output_section->vma | |
8979 | + htab->glink->output_offset | |
8980 | + ent->glink_offset); | |
8981 | else | |
8982 | relocation = (htab->plt->output_section->vma | |
8983 | + htab->plt->output_offset | |
8984 | + ent->plt.offset); | |
8985 | } | |
1a0670f3 | 8986 | /* Fall through. */ |
b4a38de6 | 8987 | |
32af9f6e | 8988 | case R_PPC_RELAX: |
9abc968f | 8989 | { |
53291d1f AM |
8990 | const int *stub; |
8991 | size_t size; | |
8992 | size_t insn_offset = rel->r_offset; | |
8993 | unsigned int insn; | |
9abc968f | 8994 | |
0e1862bb | 8995 | if (bfd_link_pic (info)) |
53291d1f AM |
8996 | { |
8997 | relocation -= (input_section->output_section->vma | |
8998 | + input_section->output_offset | |
8999 | + rel->r_offset - 4); | |
9000 | stub = shared_stub_entry; | |
9001 | bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12); | |
9002 | bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8); | |
9003 | bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4); | |
9004 | stub += 3; | |
9005 | size = ARRAY_SIZE (shared_stub_entry) - 3; | |
9006 | } | |
9007 | else | |
9008 | { | |
9009 | stub = stub_entry; | |
9010 | size = ARRAY_SIZE (stub_entry); | |
9011 | } | |
9abc968f | 9012 | |
9abc968f | 9013 | relocation += addend; |
0e1862bb | 9014 | if (bfd_link_relocatable (info)) |
53291d1f AM |
9015 | relocation = 0; |
9016 | ||
9017 | /* First insn is HA, second is LO. */ | |
9018 | insn = *stub++; | |
9019 | insn |= ((relocation + 0x8000) >> 16) & 0xffff; | |
9020 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
9021 | insn_offset += 4; | |
9022 | ||
9023 | insn = *stub++; | |
9024 | insn |= relocation & 0xffff; | |
9025 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
9026 | insn_offset += 4; | |
9027 | size -= 2; | |
9028 | ||
9029 | while (size != 0) | |
9030 | { | |
9031 | insn = *stub++; | |
9032 | --size; | |
9033 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
9034 | insn_offset += 4; | |
9035 | } | |
9bc4e62b NS |
9036 | |
9037 | /* Rewrite the reloc and convert one of the trailing nop | |
9038 | relocs to describe this relocation. */ | |
9039 | BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); | |
9040 | /* The relocs are at the bottom 2 bytes */ | |
c316a17c AM |
9041 | wrel->r_offset = rel->r_offset + d_offset; |
9042 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
9043 | wrel->r_addend = rel->r_addend; | |
9044 | memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel)); | |
9045 | wrel++, rel++; | |
9046 | wrel->r_offset += 4; | |
9047 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
9abc968f | 9048 | } |
8517fae7 | 9049 | continue; |
deaaf2f3 | 9050 | |
70bccea4 | 9051 | /* Indirect .sdata relocation. */ |
7619e7c7 | 9052 | case R_PPC_EMB_SDAI16: |
c9a2f333 | 9053 | BFD_ASSERT (htab->sdata[0].section != NULL); |
bd6c6e2b AM |
9054 | if (!is_static_defined (htab->sdata[0].sym)) |
9055 | { | |
9056 | unresolved_reloc = TRUE; | |
9057 | break; | |
9058 | } | |
7619e7c7 | 9059 | relocation |
76750a2f AM |
9060 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], |
9061 | h, relocation, rel); | |
bd6c6e2b | 9062 | addend = 0; |
252b5132 RH |
9063 | break; |
9064 | ||
70bccea4 | 9065 | /* Indirect .sdata2 relocation. */ |
7619e7c7 | 9066 | case R_PPC_EMB_SDA2I16: |
c9a2f333 | 9067 | BFD_ASSERT (htab->sdata[1].section != NULL); |
bd6c6e2b AM |
9068 | if (!is_static_defined (htab->sdata[1].sym)) |
9069 | { | |
9070 | unresolved_reloc = TRUE; | |
9071 | break; | |
9072 | } | |
7619e7c7 | 9073 | relocation |
76750a2f AM |
9074 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], |
9075 | h, relocation, rel); | |
bd6c6e2b | 9076 | addend = 0; |
252b5132 RH |
9077 | break; |
9078 | ||
70bccea4 AM |
9079 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
9080 | section, not the actual VMA. This is appropriate when generating | |
9081 | an embedded ELF object, for which the .got section acts like the | |
9082 | AIX .toc section. */ | |
7619e7c7 | 9083 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
3b4f3a11 AM |
9084 | if (sec == NULL || sec->output_section == NULL) |
9085 | { | |
9086 | unresolved_reloc = TRUE; | |
9087 | break; | |
9088 | } | |
a0f49396 NC |
9089 | BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec), |
9090 | ".got") == 0 | |
9091 | || strcmp (bfd_get_section_name (sec->owner, sec), | |
9092 | ".cgot") == 0); | |
252b5132 | 9093 | |
3b4f3a11 | 9094 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
9095 | break; |
9096 | ||
7619e7c7 | 9097 | case R_PPC_PLTREL24: |
f75e0e33 AM |
9098 | if (h != NULL && ifunc == NULL) |
9099 | { | |
cbf95972 AM |
9100 | struct plt_entry *ent; |
9101 | ||
9102 | ent = find_plt_ent (&h->plt.plist, got2, | |
9103 | bfd_link_pic (info) ? addend : 0); | |
f75e0e33 AM |
9104 | if (ent == NULL |
9105 | || htab->plt == NULL) | |
9106 | { | |
9107 | /* We didn't make a PLT entry for this symbol. This | |
9108 | happens when statically linking PIC code, or when | |
9109 | using -Bsymbolic. */ | |
9110 | } | |
9111 | else | |
9112 | { | |
9113 | /* Relocation is to the entry for this symbol in the | |
9114 | procedure linkage table. */ | |
9115 | unresolved_reloc = FALSE; | |
9116 | if (htab->plt_type == PLT_NEW) | |
9117 | relocation = (htab->glink->output_section->vma | |
9118 | + htab->glink->output_offset | |
9119 | + ent->glink_offset); | |
9120 | else | |
9121 | relocation = (htab->plt->output_section->vma | |
9122 | + htab->plt->output_offset | |
9123 | + ent->plt.offset); | |
9124 | } | |
9125 | } | |
252b5132 | 9126 | |
f75e0e33 AM |
9127 | /* R_PPC_PLTREL24 is rather special. If non-zero, the |
9128 | addend specifies the GOT pointer offset within .got2. | |
9129 | Don't apply it to the relocation field. */ | |
9130 | addend = 0; | |
8da6118f | 9131 | break; |
252b5132 | 9132 | |
70bccea4 | 9133 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 9134 | case R_PPC_SDAREL16: |
252b5132 RH |
9135 | { |
9136 | const char *name; | |
bd6c6e2b | 9137 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; |
252b5132 | 9138 | |
bd6c6e2b AM |
9139 | if (sec == NULL |
9140 | || sec->output_section == NULL | |
9141 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9142 | { |
9143 | unresolved_reloc = TRUE; | |
9144 | break; | |
9145 | } | |
bd6c6e2b | 9146 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9147 | |
a0f49396 | 9148 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9149 | if (!(strcmp (name, ".sdata") == 0 |
9150 | || strcmp (name, ".sbss") == 0)) | |
252b5132 | 9151 | { |
25f53a85 | 9152 | info->callbacks->einfo |
8de848d8 | 9153 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9154 | "in the wrong output section (%s)\n"), |
d003868e | 9155 | input_bfd, |
55fd94b0 AM |
9156 | sym_name, |
9157 | howto->name, | |
9158 | name); | |
252b5132 | 9159 | } |
252b5132 RH |
9160 | } |
9161 | break; | |
9162 | ||
70bccea4 | 9163 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 9164 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
9165 | { |
9166 | const char *name; | |
bd6c6e2b | 9167 | struct elf_link_hash_entry *sda = htab->sdata[1].sym; |
252b5132 | 9168 | |
bd6c6e2b AM |
9169 | if (sec == NULL |
9170 | || sec->output_section == NULL | |
9171 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9172 | { |
9173 | unresolved_reloc = TRUE; | |
9174 | break; | |
9175 | } | |
bd6c6e2b | 9176 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9177 | |
a0f49396 | 9178 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9179 | if (!(strcmp (name, ".sdata2") == 0 |
9180 | || strcmp (name, ".sbss2") == 0)) | |
252b5132 | 9181 | { |
25f53a85 | 9182 | info->callbacks->einfo |
8de848d8 | 9183 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9184 | "in the wrong output section (%s)\n"), |
d003868e | 9185 | input_bfd, |
55fd94b0 AM |
9186 | sym_name, |
9187 | howto->name, | |
9188 | name); | |
252b5132 | 9189 | } |
252b5132 RH |
9190 | } |
9191 | break; | |
9192 | ||
b9c361e0 | 9193 | case R_PPC_VLE_LO16A: |
86c95733 AM |
9194 | relocation = relocation + addend; |
9195 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9196 | relocation, split16a_type); | |
c316a17c | 9197 | goto copy_reloc; |
b9c361e0 JL |
9198 | |
9199 | case R_PPC_VLE_LO16D: | |
86c95733 AM |
9200 | relocation = relocation + addend; |
9201 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9202 | relocation, split16d_type); | |
c316a17c | 9203 | goto copy_reloc; |
b9c361e0 JL |
9204 | |
9205 | case R_PPC_VLE_HI16A: | |
86c95733 AM |
9206 | relocation = (relocation + addend) >> 16; |
9207 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9208 | relocation, split16a_type); | |
c316a17c | 9209 | goto copy_reloc; |
b9c361e0 JL |
9210 | |
9211 | case R_PPC_VLE_HI16D: | |
86c95733 AM |
9212 | relocation = (relocation + addend) >> 16; |
9213 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9214 | relocation, split16d_type); | |
c316a17c | 9215 | goto copy_reloc; |
b9c361e0 JL |
9216 | |
9217 | case R_PPC_VLE_HA16A: | |
86c95733 AM |
9218 | relocation = (relocation + addend + 0x8000) >> 16; |
9219 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9220 | relocation, split16a_type); | |
c316a17c | 9221 | goto copy_reloc; |
b9c361e0 JL |
9222 | |
9223 | case R_PPC_VLE_HA16D: | |
86c95733 AM |
9224 | relocation = (relocation + addend + 0x8000) >> 16; |
9225 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9226 | relocation, split16d_type); | |
c316a17c | 9227 | goto copy_reloc; |
b9c361e0 | 9228 | |
70bccea4 | 9229 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 | 9230 | case R_PPC_EMB_SDA21: |
b9c361e0 | 9231 | case R_PPC_VLE_SDA21: |
7619e7c7 | 9232 | case R_PPC_EMB_RELSDA: |
b9c361e0 | 9233 | case R_PPC_VLE_SDA21_LO: |
252b5132 RH |
9234 | { |
9235 | const char *name; | |
9236 | int reg; | |
86c95733 | 9237 | unsigned int insn; |
bd6c6e2b | 9238 | struct elf_link_hash_entry *sda = NULL; |
252b5132 | 9239 | |
3b4f3a11 AM |
9240 | if (sec == NULL || sec->output_section == NULL) |
9241 | { | |
9242 | unresolved_reloc = TRUE; | |
9243 | break; | |
9244 | } | |
9245 | ||
a0f49396 | 9246 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9247 | if (strcmp (name, ".sdata") == 0 |
9248 | || strcmp (name, ".sbss") == 0) | |
252b5132 RH |
9249 | { |
9250 | reg = 13; | |
bd6c6e2b | 9251 | sda = htab->sdata[0].sym; |
252b5132 | 9252 | } |
93d1b056 AM |
9253 | else if (strcmp (name, ".sdata2") == 0 |
9254 | || strcmp (name, ".sbss2") == 0) | |
252b5132 RH |
9255 | { |
9256 | reg = 2; | |
bd6c6e2b | 9257 | sda = htab->sdata[1].sym; |
252b5132 | 9258 | } |
8da6118f KH |
9259 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
9260 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
9261 | { |
9262 | reg = 0; | |
9263 | } | |
252b5132 RH |
9264 | else |
9265 | { | |
25f53a85 | 9266 | info->callbacks->einfo |
8de848d8 | 9267 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9268 | "in the wrong output section (%s)\n"), |
d003868e | 9269 | input_bfd, |
55fd94b0 AM |
9270 | sym_name, |
9271 | howto->name, | |
9272 | name); | |
252b5132 RH |
9273 | |
9274 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 9275 | ret = FALSE; |
c316a17c | 9276 | goto copy_reloc; |
252b5132 RH |
9277 | } |
9278 | ||
bd6c6e2b AM |
9279 | if (sda != NULL) |
9280 | { | |
9281 | if (!is_static_defined (sda)) | |
9282 | { | |
9283 | unresolved_reloc = TRUE; | |
9284 | break; | |
9285 | } | |
9286 | addend -= SYM_VAL (sda); | |
9287 | } | |
9288 | ||
86c95733 | 9289 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
b9c361e0 JL |
9290 | if (reg == 0 |
9291 | && (r_type == R_PPC_VLE_SDA21 | |
9292 | || r_type == R_PPC_VLE_SDA21_LO)) | |
9293 | { | |
86c95733 AM |
9294 | relocation = relocation + addend; |
9295 | addend = 0; | |
9296 | ||
9297 | /* Force e_li insn, keeping RT from original insn. */ | |
9298 | insn &= 0x1f << 21; | |
9299 | insn |= 28u << 26; | |
9300 | ||
9301 | /* We have an li20 field, bits 17..20, 11..15, 21..31. */ | |
9302 | /* Top 4 bits of value to 17..20. */ | |
9303 | insn |= (relocation & 0xf0000) >> 5; | |
9304 | /* Next 5 bits of the value to 11..15. */ | |
9305 | insn |= (relocation & 0xf800) << 5; | |
9306 | /* And the final 11 bits of the value to bits 21 to 31. */ | |
9307 | insn |= relocation & 0x7ff; | |
9308 | ||
c3301df1 AM |
9309 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
9310 | ||
9311 | if (r_type == R_PPC_VLE_SDA21 | |
9312 | && ((relocation + 0x80000) & 0xffffffff) > 0x100000) | |
9313 | goto overflow; | |
c316a17c | 9314 | goto copy_reloc; |
b9c361e0 JL |
9315 | } |
9316 | else if (r_type == R_PPC_EMB_SDA21 | |
9317 | || r_type == R_PPC_VLE_SDA21 | |
9318 | || r_type == R_PPC_VLE_SDA21_LO) | |
91d6fa6a | 9319 | { |
86c95733 | 9320 | /* Fill in register field. */ |
252b5132 | 9321 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
252b5132 | 9322 | } |
86c95733 | 9323 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
9324 | } |
9325 | break; | |
9326 | ||
b9c361e0 JL |
9327 | case R_PPC_VLE_SDAREL_LO16A: |
9328 | case R_PPC_VLE_SDAREL_LO16D: | |
9329 | case R_PPC_VLE_SDAREL_HI16A: | |
9330 | case R_PPC_VLE_SDAREL_HI16D: | |
9331 | case R_PPC_VLE_SDAREL_HA16A: | |
9332 | case R_PPC_VLE_SDAREL_HA16D: | |
9333 | { | |
9334 | bfd_vma value; | |
9335 | const char *name; | |
9336 | //int reg; | |
9337 | struct elf_link_hash_entry *sda = NULL; | |
9338 | ||
9339 | if (sec == NULL || sec->output_section == NULL) | |
9340 | { | |
9341 | unresolved_reloc = TRUE; | |
9342 | break; | |
9343 | } | |
9344 | ||
a0f49396 | 9345 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9346 | if (strcmp (name, ".sdata") == 0 |
9347 | || strcmp (name, ".sbss") == 0) | |
b9c361e0 JL |
9348 | { |
9349 | //reg = 13; | |
9350 | sda = htab->sdata[0].sym; | |
9351 | } | |
93d1b056 AM |
9352 | else if (strcmp (name, ".sdata2") == 0 |
9353 | || strcmp (name, ".sbss2") == 0) | |
b9c361e0 JL |
9354 | { |
9355 | //reg = 2; | |
9356 | sda = htab->sdata[1].sym; | |
9357 | } | |
9358 | else | |
9359 | { | |
4eca0228 | 9360 | _bfd_error_handler |
b9c361e0 JL |
9361 | (_("%B: the target (%s) of a %s relocation is " |
9362 | "in the wrong output section (%s)"), | |
9363 | input_bfd, | |
9364 | sym_name, | |
9365 | howto->name, | |
9366 | name); | |
9367 | ||
9368 | bfd_set_error (bfd_error_bad_value); | |
9369 | ret = FALSE; | |
c316a17c | 9370 | goto copy_reloc; |
b9c361e0 JL |
9371 | } |
9372 | ||
9373 | if (sda != NULL) | |
9374 | { | |
9375 | if (!is_static_defined (sda)) | |
9376 | { | |
9377 | unresolved_reloc = TRUE; | |
9378 | break; | |
9379 | } | |
9380 | } | |
9381 | ||
86c95733 AM |
9382 | value = (sda->root.u.def.section->output_section->vma |
9383 | + sda->root.u.def.section->output_offset | |
9384 | + addend); | |
9385 | ||
9386 | if (r_type == R_PPC_VLE_SDAREL_LO16A) | |
9387 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9388 | value, split16a_type); | |
9389 | else if (r_type == R_PPC_VLE_SDAREL_LO16D) | |
9390 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9391 | value, split16d_type); | |
9392 | else if (r_type == R_PPC_VLE_SDAREL_HI16A) | |
b9c361e0 | 9393 | { |
86c95733 AM |
9394 | value = value >> 16; |
9395 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9396 | value, split16a_type); | |
b9c361e0 | 9397 | } |
86c95733 | 9398 | else if (r_type == R_PPC_VLE_SDAREL_HI16D) |
b9c361e0 | 9399 | { |
86c95733 AM |
9400 | value = value >> 16; |
9401 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9402 | value, split16d_type); | |
b9c361e0 | 9403 | } |
86c95733 | 9404 | else if (r_type == R_PPC_VLE_SDAREL_HA16A) |
b9c361e0 | 9405 | { |
86c95733 AM |
9406 | value = (value + 0x8000) >> 16; |
9407 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9408 | value, split16a_type); | |
b9c361e0 | 9409 | } |
86c95733 | 9410 | else if (r_type == R_PPC_VLE_SDAREL_HA16D) |
b9c361e0 | 9411 | { |
86c95733 AM |
9412 | value = (value + 0x8000) >> 16; |
9413 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9414 | value, split16d_type); | |
b9c361e0 JL |
9415 | } |
9416 | } | |
c316a17c | 9417 | goto copy_reloc; |
b9c361e0 | 9418 | |
70bccea4 | 9419 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
9420 | case R_PPC_SECTOFF: |
9421 | case R_PPC_SECTOFF_LO: | |
9422 | case R_PPC_SECTOFF_HI: | |
9423 | case R_PPC_SECTOFF_HA: | |
3b4f3a11 AM |
9424 | if (sec == NULL || sec->output_section == NULL) |
9425 | { | |
9426 | unresolved_reloc = TRUE; | |
9427 | break; | |
9428 | } | |
252b5132 | 9429 | addend -= sec->output_section->vma; |
252b5132 RH |
9430 | break; |
9431 | ||
70bccea4 | 9432 | /* Negative relocations. */ |
7619e7c7 AM |
9433 | case R_PPC_EMB_NADDR32: |
9434 | case R_PPC_EMB_NADDR16: | |
9435 | case R_PPC_EMB_NADDR16_LO: | |
9436 | case R_PPC_EMB_NADDR16_HI: | |
9437 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 9438 | addend -= 2 * relocation; |
252b5132 RH |
9439 | break; |
9440 | ||
7619e7c7 AM |
9441 | case R_PPC_COPY: |
9442 | case R_PPC_GLOB_DAT: | |
9443 | case R_PPC_JMP_SLOT: | |
9444 | case R_PPC_RELATIVE: | |
e054468f | 9445 | case R_PPC_IRELATIVE: |
7619e7c7 AM |
9446 | case R_PPC_PLT32: |
9447 | case R_PPC_PLTREL32: | |
9448 | case R_PPC_PLT16_LO: | |
9449 | case R_PPC_PLT16_HI: | |
9450 | case R_PPC_PLT16_HA: | |
9451 | case R_PPC_ADDR30: | |
9452 | case R_PPC_EMB_RELSEC16: | |
9453 | case R_PPC_EMB_RELST_LO: | |
9454 | case R_PPC_EMB_RELST_HI: | |
9455 | case R_PPC_EMB_RELST_HA: | |
9456 | case R_PPC_EMB_BIT_FLD: | |
25f53a85 | 9457 | info->callbacks->einfo |
8de848d8 | 9458 | (_("%P: %B: relocation %s is not yet supported for symbol %s\n"), |
d003868e | 9459 | input_bfd, |
7619e7c7 AM |
9460 | howto->name, |
9461 | sym_name); | |
252b5132 RH |
9462 | |
9463 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 9464 | ret = FALSE; |
c316a17c | 9465 | goto copy_reloc; |
7619e7c7 | 9466 | } |
252b5132 | 9467 | |
7619e7c7 AM |
9468 | /* Do any further special processing. */ |
9469 | switch (r_type) | |
9470 | { | |
9471 | default: | |
9472 | break; | |
9473 | ||
9474 | case R_PPC_ADDR16_HA: | |
d7128ce4 | 9475 | case R_PPC_REL16_HA: |
a680de9a | 9476 | case R_PPC_REL16DX_HA: |
7619e7c7 AM |
9477 | case R_PPC_SECTOFF_HA: |
9478 | case R_PPC_TPREL16_HA: | |
9479 | case R_PPC_DTPREL16_HA: | |
7619e7c7 AM |
9480 | case R_PPC_EMB_NADDR16_HA: |
9481 | case R_PPC_EMB_RELST_HA: | |
9482 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 9483 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
9484 | 'sec' would be NULL, and we should leave the symbol |
9485 | alone (it will be set to zero elsewhere in the link). */ | |
5c5f6e17 AM |
9486 | if (sec == NULL) |
9487 | break; | |
1a0670f3 | 9488 | /* Fall through. */ |
5c5f6e17 AM |
9489 | |
9490 | case R_PPC_PLT16_HA: | |
9491 | case R_PPC_GOT16_HA: | |
9492 | case R_PPC_GOT_TLSGD16_HA: | |
9493 | case R_PPC_GOT_TLSLD16_HA: | |
9494 | case R_PPC_GOT_TPREL16_HA: | |
9495 | case R_PPC_GOT_DTPREL16_HA: | |
9496 | /* Add 0x10000 if sign bit in 0:15 is set. | |
9497 | Bits 0:15 are not used. */ | |
9498 | addend += 0x8000; | |
7619e7c7 | 9499 | break; |
1fe532cf AM |
9500 | |
9501 | case R_PPC_ADDR16: | |
9502 | case R_PPC_ADDR16_LO: | |
9503 | case R_PPC_GOT16: | |
9504 | case R_PPC_GOT16_LO: | |
9505 | case R_PPC_SDAREL16: | |
9506 | case R_PPC_SECTOFF: | |
9507 | case R_PPC_SECTOFF_LO: | |
9508 | case R_PPC_DTPREL16: | |
9509 | case R_PPC_DTPREL16_LO: | |
9510 | case R_PPC_TPREL16: | |
9511 | case R_PPC_TPREL16_LO: | |
9512 | case R_PPC_GOT_TLSGD16: | |
9513 | case R_PPC_GOT_TLSGD16_LO: | |
9514 | case R_PPC_GOT_TLSLD16: | |
9515 | case R_PPC_GOT_TLSLD16_LO: | |
9516 | case R_PPC_GOT_DTPREL16: | |
9517 | case R_PPC_GOT_DTPREL16_LO: | |
9518 | case R_PPC_GOT_TPREL16: | |
9519 | case R_PPC_GOT_TPREL16_LO: | |
9520 | { | |
9521 | /* The 32-bit ABI lacks proper relocations to deal with | |
9522 | certain 64-bit instructions. Prevent damage to bits | |
9523 | that make up part of the insn opcode. */ | |
9524 | unsigned int insn, mask, lobit; | |
9525 | ||
c316a17c AM |
9526 | insn = bfd_get_32 (output_bfd, |
9527 | contents + rel->r_offset - d_offset); | |
1fe532cf AM |
9528 | mask = 0; |
9529 | if (is_insn_ds_form (insn)) | |
9530 | mask = 3; | |
9531 | else if (is_insn_dq_form (insn)) | |
9532 | mask = 15; | |
9533 | else | |
9534 | break; | |
a680de9a PB |
9535 | relocation += addend; |
9536 | addend = insn & mask; | |
9537 | lobit = mask & relocation; | |
1fe532cf AM |
9538 | if (lobit != 0) |
9539 | { | |
a680de9a | 9540 | relocation ^= lobit; |
1fe532cf AM |
9541 | info->callbacks->einfo |
9542 | (_("%P: %H: error: %s against `%s' not a multiple of %u\n"), | |
9543 | input_bfd, input_section, rel->r_offset, | |
9544 | howto->name, sym_name, mask + 1); | |
9545 | bfd_set_error (bfd_error_bad_value); | |
9546 | ret = FALSE; | |
9547 | } | |
1fe532cf AM |
9548 | } |
9549 | break; | |
252b5132 RH |
9550 | } |
9551 | ||
252b5132 | 9552 | #ifdef DEBUG |
55fd94b0 AM |
9553 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
9554 | "offset = %ld, addend = %ld\n", | |
252b5132 | 9555 | howto->name, |
8da6118f | 9556 | (int) r_type, |
252b5132 RH |
9557 | sym_name, |
9558 | r_symndx, | |
7619e7c7 | 9559 | (long) rel->r_offset, |
8da6118f | 9560 | (long) addend); |
252b5132 RH |
9561 | #endif |
9562 | ||
7619e7c7 AM |
9563 | if (unresolved_reloc |
9564 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
9565 | && h->def_dynamic) |
9566 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
9567 | rel->r_offset) != (bfd_vma) -1) | |
7619e7c7 | 9568 | { |
25f53a85 | 9569 | info->callbacks->einfo |
8de848d8 | 9570 | (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"), |
25f53a85 | 9571 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 9572 | howto->name, |
7619e7c7 AM |
9573 | sym_name); |
9574 | ret = FALSE; | |
9575 | } | |
9576 | ||
86c95733 AM |
9577 | /* 16-bit fields in insns mostly have signed values, but a |
9578 | few insns have 16-bit unsigned values. Really, we should | |
9579 | have different reloc types. */ | |
9580 | if (howto->complain_on_overflow != complain_overflow_dont | |
9581 | && howto->dst_mask == 0xffff | |
9582 | && (input_section->flags & SEC_CODE) != 0) | |
9583 | { | |
9584 | enum complain_overflow complain = complain_overflow_signed; | |
9585 | ||
9586 | if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0) | |
9587 | { | |
9588 | unsigned int insn; | |
9589 | ||
9590 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
a47622ac AM |
9591 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
9592 | complain = complain_overflow_bitfield; | |
9593 | else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
9594 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
9595 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
86c95733 AM |
9596 | complain = complain_overflow_unsigned; |
9597 | } | |
9598 | if (howto->complain_on_overflow != complain) | |
9599 | { | |
9600 | alt_howto = *howto; | |
9601 | alt_howto.complain_on_overflow = complain; | |
9602 | howto = &alt_howto; | |
9603 | } | |
9604 | } | |
9605 | ||
a680de9a PB |
9606 | if (r_type == R_PPC_REL16DX_HA) |
9607 | { | |
9608 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
9609 | if (rel->r_offset + 4 > input_section->size) | |
9610 | r = bfd_reloc_outofrange; | |
9611 | else | |
9612 | { | |
9613 | unsigned int insn; | |
9614 | ||
9615 | relocation += addend; | |
9616 | relocation -= (rel->r_offset | |
9617 | + input_section->output_offset | |
9618 | + input_section->output_section->vma); | |
9619 | relocation >>= 16; | |
9620 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
9621 | insn &= ~0x1fffc1; | |
9622 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
9623 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
9624 | r = bfd_reloc_ok; | |
9625 | } | |
9626 | } | |
9627 | else | |
9628 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
9629 | rel->r_offset, relocation, addend); | |
252b5132 | 9630 | |
7619e7c7 | 9631 | if (r != bfd_reloc_ok) |
252b5132 | 9632 | { |
7619e7c7 | 9633 | if (r == bfd_reloc_overflow) |
252b5132 | 9634 | { |
c3301df1 | 9635 | overflow: |
8131c122 AM |
9636 | /* On code like "if (foo) foo();" don't report overflow |
9637 | on a branch to zero when foo is undefined. */ | |
9638 | if (!warned | |
9639 | && !(h != NULL | |
9640 | && (h->root.type == bfd_link_hash_undefweak | |
9641 | || h->root.type == bfd_link_hash_undefined) | |
9642 | && is_branch_reloc (r_type))) | |
1a72702b AM |
9643 | info->callbacks->reloc_overflow |
9644 | (info, (h ? &h->root : NULL), sym_name, howto->name, | |
9645 | rel->r_addend, input_bfd, input_section, rel->r_offset); | |
dc1bc0c9 RH |
9646 | } |
9647 | else | |
9648 | { | |
25f53a85 | 9649 | info->callbacks->einfo |
8de848d8 | 9650 | (_("%P: %H: %s reloc against `%s': error %d\n"), |
25f53a85 AM |
9651 | input_bfd, input_section, rel->r_offset, |
9652 | howto->name, sym_name, (int) r); | |
7619e7c7 | 9653 | ret = FALSE; |
252b5132 RH |
9654 | } |
9655 | } | |
c316a17c AM |
9656 | copy_reloc: |
9657 | if (wrel != rel) | |
9658 | *wrel = *rel; | |
9659 | } | |
9660 | ||
9661 | if (wrel != rel) | |
9662 | { | |
9663 | Elf_Internal_Shdr *rel_hdr; | |
9664 | size_t deleted = rel - wrel; | |
9665 | ||
9666 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
9667 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9668 | if (rel_hdr->sh_size == 0) | |
9669 | { | |
9670 | /* It is too late to remove an empty reloc section. Leave | |
9671 | one NONE reloc. | |
9672 | ??? What is wrong with an empty section??? */ | |
9673 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
9674 | deleted -= 1; | |
9675 | wrel++; | |
9676 | } | |
9677 | relend = wrel; | |
9678 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
9679 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9680 | input_section->reloc_count -= deleted; | |
252b5132 RH |
9681 | } |
9682 | ||
252b5132 RH |
9683 | #ifdef DEBUG |
9684 | fprintf (stderr, "\n"); | |
9685 | #endif | |
9686 | ||
53291d1f AM |
9687 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
9688 | && input_section->size != input_section->rawsize | |
9689 | && (strcmp (input_section->output_section->name, ".init") == 0 | |
9690 | || strcmp (input_section->output_section->name, ".fini") == 0)) | |
9691 | { | |
9692 | /* Branch around the trampolines. */ | |
9693 | unsigned int insn = B + input_section->size - input_section->rawsize; | |
9694 | bfd_put_32 (input_bfd, insn, contents + input_section->rawsize); | |
9695 | } | |
9696 | ||
5446cbdf | 9697 | if (htab->params->ppc476_workaround |
795bc6b3 | 9698 | && input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
0e1862bb | 9699 | && (!bfd_link_relocatable (info) |
795bc6b3 AM |
9700 | || (input_section->output_section->alignment_power |
9701 | >= htab->params->pagesize_p2))) | |
5446cbdf | 9702 | { |
5446cbdf | 9703 | bfd_vma start_addr, end_addr, addr; |
795bc6b3 | 9704 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf | 9705 | |
5446cbdf | 9706 | if (relax_info->workaround_size != 0) |
40fd06d1 AM |
9707 | { |
9708 | bfd_byte *p; | |
9709 | unsigned int n; | |
9710 | bfd_byte fill[4]; | |
9711 | ||
9712 | bfd_put_32 (input_bfd, BA, fill); | |
9713 | p = contents + input_section->size - relax_info->workaround_size; | |
9714 | n = relax_info->workaround_size >> 2; | |
9715 | while (n--) | |
9716 | { | |
9717 | memcpy (p, fill, 4); | |
9718 | p += 4; | |
9719 | } | |
9720 | } | |
5446cbdf AM |
9721 | |
9722 | /* The idea is: Replace the last instruction on a page with a | |
9723 | branch to a patch area. Put the insn there followed by a | |
9724 | branch back to the next page. Complicated a little by | |
9725 | needing to handle moved conditional branches, and by not | |
9726 | wanting to touch data-in-text. */ | |
9727 | ||
9728 | start_addr = (input_section->output_section->vma | |
9729 | + input_section->output_offset); | |
9730 | end_addr = (start_addr + input_section->size | |
9731 | - relax_info->workaround_size); | |
9732 | for (addr = ((start_addr & -pagesize) + pagesize - 4); | |
9733 | addr < end_addr; | |
9734 | addr += pagesize) | |
9735 | { | |
9736 | bfd_vma offset = addr - start_addr; | |
9737 | Elf_Internal_Rela *lo, *hi; | |
9738 | bfd_boolean is_data; | |
9739 | bfd_vma patch_off, patch_addr; | |
9740 | unsigned int insn; | |
9741 | ||
9742 | /* Do we have a data reloc at this offset? If so, leave | |
9743 | the word alone. */ | |
9744 | is_data = FALSE; | |
9745 | lo = relocs; | |
668e22e5 AM |
9746 | hi = relend; |
9747 | rel = NULL; | |
5446cbdf AM |
9748 | while (lo < hi) |
9749 | { | |
9750 | rel = lo + (hi - lo) / 2; | |
9751 | if (rel->r_offset < offset) | |
9752 | lo = rel + 1; | |
668e22e5 | 9753 | else if (rel->r_offset > offset + 3) |
5446cbdf AM |
9754 | hi = rel; |
9755 | else | |
9756 | { | |
9757 | switch (ELF32_R_TYPE (rel->r_info)) | |
9758 | { | |
9759 | case R_PPC_ADDR32: | |
9760 | case R_PPC_UADDR32: | |
9761 | case R_PPC_REL32: | |
9762 | case R_PPC_ADDR30: | |
9763 | is_data = TRUE; | |
9764 | break; | |
9765 | default: | |
9766 | break; | |
9767 | } | |
9768 | break; | |
9769 | } | |
9770 | } | |
9771 | if (is_data) | |
9772 | continue; | |
9773 | ||
b4ab4364 AM |
9774 | /* Some instructions can be left alone too. Unconditional |
9775 | branches, except for bcctr with BO=0x14 (bctr, bctrl), | |
9776 | avoid the icache failure. | |
9777 | ||
9778 | The problem occurs due to prefetch across a page boundary | |
9779 | where stale instructions can be fetched from the next | |
9780 | page, and the mechanism for flushing these bad | |
9781 | instructions fails under certain circumstances. The | |
9782 | unconditional branches: | |
9783 | 1) Branch: b, bl, ba, bla, | |
9784 | 2) Branch Conditional: bc, bca, bcl, bcla, | |
9785 | 3) Branch Conditional to Link Register: bclr, bclrl, | |
9786 | where (2) and (3) have BO=0x14 making them unconditional, | |
9787 | prevent the bad prefetch because the prefetch itself is | |
9788 | affected by these instructions. This happens even if the | |
9789 | instruction is not executed. | |
9790 | ||
9791 | A bctr example: | |
9792 | . | |
9793 | . lis 9,new_page@ha | |
9794 | . addi 9,9,new_page@l | |
9795 | . mtctr 9 | |
9796 | . bctr | |
9797 | . nop | |
9798 | . nop | |
9799 | . new_page: | |
9800 | . | |
9801 | The bctr is not predicted taken due to ctr not being | |
9802 | ready, so prefetch continues on past the bctr into the | |
9803 | new page which might have stale instructions. If they | |
9804 | fail to be flushed, then they will be executed after the | |
9805 | bctr executes. Either of the following modifications | |
9806 | prevent the bad prefetch from happening in the first | |
9807 | place: | |
9808 | . | |
1b786873 L |
9809 | . lis 9,new_page@ha lis 9,new_page@ha |
9810 | . addi 9,9,new_page@l addi 9,9,new_page@l | |
9811 | . mtctr 9 mtctr 9 | |
9812 | . bctr bctr | |
b4ab4364 | 9813 | . nop b somewhere_else |
1b786873 L |
9814 | . b somewhere_else nop |
9815 | . new_page: new_page: | |
b4ab4364 | 9816 | . */ |
5446cbdf | 9817 | insn = bfd_get_32 (input_bfd, contents + offset); |
b4ab4364 AM |
9818 | if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */ |
9819 | || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/ | |
9820 | && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */ | |
5446cbdf | 9821 | || ((insn & (0x3f << 26)) == (19u << 26) |
b4ab4364 AM |
9822 | && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */ |
9823 | && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */ | |
5446cbdf AM |
9824 | continue; |
9825 | ||
9826 | patch_addr = (start_addr + input_section->size | |
9827 | - relax_info->workaround_size); | |
9828 | patch_addr = (patch_addr + 15) & -16; | |
9829 | patch_off = patch_addr - start_addr; | |
9830 | bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset); | |
668e22e5 AM |
9831 | |
9832 | if (rel != NULL | |
9833 | && rel->r_offset >= offset | |
9834 | && rel->r_offset < offset + 4) | |
9835 | { | |
f8b44781 AM |
9836 | asection *sreloc; |
9837 | ||
668e22e5 AM |
9838 | /* If the insn we are patching had a reloc, adjust the |
9839 | reloc r_offset so that the reloc applies to the moved | |
9840 | location. This matters for -r and --emit-relocs. */ | |
9841 | if (rel + 1 != relend) | |
9842 | { | |
9843 | Elf_Internal_Rela tmp = *rel; | |
9844 | ||
9845 | /* Keep the relocs sorted by r_offset. */ | |
9846 | memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel)); | |
9847 | relend[-1] = tmp; | |
9848 | } | |
9849 | relend[-1].r_offset += patch_off - offset; | |
f8b44781 AM |
9850 | |
9851 | /* Adjust REL16 addends too. */ | |
9852 | switch (ELF32_R_TYPE (relend[-1].r_info)) | |
9853 | { | |
9854 | case R_PPC_REL16: | |
9855 | case R_PPC_REL16_LO: | |
9856 | case R_PPC_REL16_HI: | |
9857 | case R_PPC_REL16_HA: | |
9858 | relend[-1].r_addend += patch_off - offset; | |
9859 | break; | |
9860 | default: | |
9861 | break; | |
9862 | } | |
9863 | ||
9864 | /* If we are building a PIE or shared library with | |
9865 | non-PIC objects, perhaps we had a dynamic reloc too? | |
9866 | If so, the dynamic reloc must move with the insn. */ | |
9867 | sreloc = elf_section_data (input_section)->sreloc; | |
9868 | if (sreloc != NULL) | |
9869 | { | |
1d5c94cb | 9870 | Elf32_External_Rela *slo, *shi, *srelend; |
f8b44781 AM |
9871 | bfd_vma soffset; |
9872 | ||
1d5c94cb AM |
9873 | slo = (Elf32_External_Rela *) sreloc->contents; |
9874 | shi = srelend = slo + sreloc->reloc_count; | |
f8b44781 AM |
9875 | soffset = (offset + input_section->output_section->vma |
9876 | + input_section->output_offset); | |
9877 | while (slo < shi) | |
9878 | { | |
1d5c94cb AM |
9879 | Elf32_External_Rela *srel = slo + (shi - slo) / 2; |
9880 | bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel, | |
9881 | &outrel); | |
f8b44781 AM |
9882 | if (outrel.r_offset < soffset) |
9883 | slo = srel + 1; | |
9884 | else if (outrel.r_offset > soffset + 3) | |
9885 | shi = srel; | |
9886 | else | |
9887 | { | |
1d5c94cb | 9888 | if (srel + 1 != srelend) |
f8b44781 | 9889 | { |
1d5c94cb AM |
9890 | memmove (srel, srel + 1, |
9891 | (srelend - (srel + 1)) * sizeof (*srel)); | |
9892 | srel = srelend - 1; | |
f8b44781 AM |
9893 | } |
9894 | outrel.r_offset += patch_off - offset; | |
1d5c94cb AM |
9895 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
9896 | (bfd_byte *) srel); | |
f8b44781 AM |
9897 | break; |
9898 | } | |
9899 | } | |
9900 | } | |
668e22e5 AM |
9901 | } |
9902 | else | |
9903 | rel = NULL; | |
9904 | ||
5446cbdf AM |
9905 | if ((insn & (0x3f << 26)) == (16u << 26) /* bc */ |
9906 | && (insn & 2) == 0 /* relative */) | |
9907 | { | |
9908 | bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000; | |
9909 | ||
9910 | delta += offset - patch_off; | |
0e1862bb | 9911 | if (bfd_link_relocatable (info) && rel != NULL) |
668e22e5 | 9912 | delta = 0; |
0e1862bb | 9913 | if (!bfd_link_relocatable (info) && rel != NULL) |
668e22e5 AM |
9914 | { |
9915 | enum elf_ppc_reloc_type r_type; | |
9916 | ||
9917 | r_type = ELF32_R_TYPE (relend[-1].r_info); | |
9918 | if (r_type == R_PPC_REL14_BRTAKEN) | |
9919 | insn |= BRANCH_PREDICT_BIT; | |
9920 | else if (r_type == R_PPC_REL14_BRNTAKEN) | |
9921 | insn &= ~BRANCH_PREDICT_BIT; | |
9922 | else | |
9923 | BFD_ASSERT (r_type == R_PPC_REL14); | |
9924 | ||
9925 | if ((r_type == R_PPC_REL14_BRTAKEN | |
9926 | || r_type == R_PPC_REL14_BRNTAKEN) | |
9927 | && delta + 0x8000 < 0x10000 | |
9928 | && (bfd_signed_vma) delta < 0) | |
9929 | insn ^= BRANCH_PREDICT_BIT; | |
9930 | } | |
5446cbdf AM |
9931 | if (delta + 0x8000 < 0x10000) |
9932 | { | |
9933 | bfd_put_32 (input_bfd, | |
9934 | (insn & ~0xfffc) | (delta & 0xfffc), | |
9935 | contents + patch_off); | |
9936 | patch_off += 4; | |
9937 | bfd_put_32 (input_bfd, | |
9938 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9939 | contents + patch_off); | |
9940 | patch_off += 4; | |
9941 | } | |
9942 | else | |
9943 | { | |
668e22e5 AM |
9944 | if (rel != NULL) |
9945 | { | |
9946 | unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info); | |
9947 | ||
9948 | relend[-1].r_offset += 8; | |
9949 | relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24); | |
9950 | } | |
5446cbdf AM |
9951 | bfd_put_32 (input_bfd, |
9952 | (insn & ~0xfffc) | 8, | |
9953 | contents + patch_off); | |
9954 | patch_off += 4; | |
9955 | bfd_put_32 (input_bfd, | |
9956 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9957 | contents + patch_off); | |
9958 | patch_off += 4; | |
9959 | bfd_put_32 (input_bfd, | |
9960 | B | ((delta - 8) & 0x3fffffc), | |
9961 | contents + patch_off); | |
9962 | patch_off += 4; | |
9963 | } | |
9964 | } | |
9965 | else | |
9966 | { | |
9967 | bfd_put_32 (input_bfd, insn, contents + patch_off); | |
9968 | patch_off += 4; | |
9969 | bfd_put_32 (input_bfd, | |
9970 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9971 | contents + patch_off); | |
9972 | patch_off += 4; | |
9973 | } | |
9974 | BFD_ASSERT (patch_off <= input_section->size); | |
9975 | relax_info->workaround_size = input_section->size - patch_off; | |
9976 | } | |
9977 | } | |
9978 | ||
252b5132 RH |
9979 | return ret; |
9980 | } | |
252b5132 | 9981 | \f |
25dbc73a AM |
9982 | /* Finish up dynamic symbol handling. We set the contents of various |
9983 | dynamic sections here. */ | |
c5fccbec | 9984 | |
b34976b6 | 9985 | static bfd_boolean |
25dbc73a AM |
9986 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
9987 | struct bfd_link_info *info, | |
9988 | struct elf_link_hash_entry *h, | |
9989 | Elf_Internal_Sym *sym) | |
e1a9cb8e | 9990 | { |
25dbc73a | 9991 | struct ppc_elf_link_hash_table *htab; |
a6aa5195 AM |
9992 | struct plt_entry *ent; |
9993 | bfd_boolean doneone; | |
e1a9cb8e | 9994 | |
25dbc73a AM |
9995 | #ifdef DEBUG |
9996 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
9997 | h->root.root.string); | |
9998 | #endif | |
e1a9cb8e | 9999 | |
25dbc73a AM |
10000 | htab = ppc_elf_hash_table (info); |
10001 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
e1a9cb8e | 10002 | |
a6aa5195 AM |
10003 | doneone = FALSE; |
10004 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
10005 | if (ent->plt.offset != (bfd_vma) -1) | |
10006 | { | |
10007 | if (!doneone) | |
10008 | { | |
10009 | Elf_Internal_Rela rela; | |
10010 | bfd_byte *loc; | |
10011 | bfd_vma reloc_index; | |
e1a9cb8e | 10012 | |
e054468f | 10013 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
10014 | || !htab->elf.dynamic_sections_created |
10015 | || h->dynindx == -1) | |
9d8504b1 PB |
10016 | reloc_index = ent->plt.offset / 4; |
10017 | else | |
10018 | { | |
10019 | reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) | |
10020 | / htab->plt_slot_size); | |
10021 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES | |
4a3dc543 | 10022 | && htab->plt_type == PLT_OLD) |
9d8504b1 PB |
10023 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; |
10024 | } | |
10025 | ||
a6aa5195 AM |
10026 | /* This symbol has an entry in the procedure linkage table. |
10027 | Set it up. */ | |
e054468f | 10028 | if (htab->plt_type == PLT_VXWORKS |
25f23106 AM |
10029 | && htab->elf.dynamic_sections_created |
10030 | && h->dynindx != -1) | |
a6aa5195 | 10031 | { |
9d8504b1 PB |
10032 | bfd_vma got_offset; |
10033 | const bfd_vma *plt_entry; | |
5b914448 | 10034 | |
9d8504b1 PB |
10035 | /* The first three entries in .got.plt are reserved. */ |
10036 | got_offset = (reloc_index + 3) * 4; | |
10037 | ||
10038 | /* Use the right PLT. */ | |
0e1862bb | 10039 | plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry |
9d8504b1 PB |
10040 | : ppc_elf_vxworks_plt_entry; |
10041 | ||
10042 | /* Fill in the .plt on VxWorks. */ | |
0e1862bb | 10043 | if (bfd_link_pic (info)) |
9d8504b1 | 10044 | { |
9d8504b1 | 10045 | bfd_put_32 (output_bfd, |
e87d4038 | 10046 | plt_entry[0] | PPC_HA (got_offset), |
9d8504b1 PB |
10047 | htab->plt->contents + ent->plt.offset + 0); |
10048 | bfd_put_32 (output_bfd, | |
e87d4038 | 10049 | plt_entry[1] | PPC_LO (got_offset), |
9d8504b1 PB |
10050 | htab->plt->contents + ent->plt.offset + 4); |
10051 | } | |
10052 | else | |
10053 | { | |
e87d4038 | 10054 | bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); |
9d8504b1 PB |
10055 | |
10056 | bfd_put_32 (output_bfd, | |
e87d4038 | 10057 | plt_entry[0] | PPC_HA (got_loc), |
9d8504b1 PB |
10058 | htab->plt->contents + ent->plt.offset + 0); |
10059 | bfd_put_32 (output_bfd, | |
e87d4038 | 10060 | plt_entry[1] | PPC_LO (got_loc), |
9d8504b1 PB |
10061 | htab->plt->contents + ent->plt.offset + 4); |
10062 | } | |
10063 | ||
10064 | bfd_put_32 (output_bfd, plt_entry[2], | |
10065 | htab->plt->contents + ent->plt.offset + 8); | |
10066 | bfd_put_32 (output_bfd, plt_entry[3], | |
10067 | htab->plt->contents + ent->plt.offset + 12); | |
10068 | ||
10069 | /* This instruction is an immediate load. The value loaded is | |
10070 | the byte offset of the R_PPC_JMP_SLOT relocation from the | |
10071 | start of the .rela.plt section. The value is stored in the | |
10072 | low-order 16 bits of the load instruction. */ | |
10073 | /* NOTE: It appears that this is now an index rather than a | |
10074 | prescaled offset. */ | |
5b914448 | 10075 | bfd_put_32 (output_bfd, |
9d8504b1 PB |
10076 | plt_entry[4] | reloc_index, |
10077 | htab->plt->contents + ent->plt.offset + 16); | |
10078 | /* This instruction is a PC-relative branch whose target is | |
10079 | the start of the PLT section. The address of this branch | |
10080 | instruction is 20 bytes beyond the start of this PLT entry. | |
10081 | The address is encoded in bits 6-29, inclusive. The value | |
10082 | stored is right-shifted by two bits, permitting a 26-bit | |
10083 | offset. */ | |
5b914448 AM |
10084 | bfd_put_32 (output_bfd, |
10085 | (plt_entry[5] | |
9d8504b1 PB |
10086 | | (-(ent->plt.offset + 20) & 0x03fffffc)), |
10087 | htab->plt->contents + ent->plt.offset + 20); | |
10088 | bfd_put_32 (output_bfd, plt_entry[6], | |
10089 | htab->plt->contents + ent->plt.offset + 24); | |
10090 | bfd_put_32 (output_bfd, plt_entry[7], | |
10091 | htab->plt->contents + ent->plt.offset + 28); | |
10092 | ||
10093 | /* Fill in the GOT entry corresponding to this PLT slot with | |
a8685210 | 10094 | the address immediately after the "bctr" instruction |
9d8504b1 PB |
10095 | in this PLT entry. */ |
10096 | bfd_put_32 (output_bfd, (htab->plt->output_section->vma | |
10097 | + htab->plt->output_offset | |
10098 | + ent->plt.offset + 16), | |
10099 | htab->sgotplt->contents + got_offset); | |
10100 | ||
0e1862bb | 10101 | if (!bfd_link_pic (info)) |
9d8504b1 PB |
10102 | { |
10103 | /* Fill in a couple of entries in .rela.plt.unloaded. */ | |
10104 | loc = htab->srelplt2->contents | |
10105 | + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index | |
10106 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) | |
10107 | * sizeof (Elf32_External_Rela)); | |
10108 | ||
10109 | /* Provide the @ha relocation for the first instruction. */ | |
10110 | rela.r_offset = (htab->plt->output_section->vma | |
10111 | + htab->plt->output_offset | |
10112 | + ent->plt.offset + 2); | |
636ce3f5 | 10113 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10114 | R_PPC_ADDR16_HA); |
10115 | rela.r_addend = got_offset; | |
10116 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10117 | loc += sizeof (Elf32_External_Rela); | |
10118 | ||
10119 | /* Provide the @l relocation for the second instruction. */ | |
10120 | rela.r_offset = (htab->plt->output_section->vma | |
10121 | + htab->plt->output_offset | |
10122 | + ent->plt.offset + 6); | |
636ce3f5 | 10123 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10124 | R_PPC_ADDR16_LO); |
10125 | rela.r_addend = got_offset; | |
10126 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10127 | loc += sizeof (Elf32_External_Rela); | |
10128 | ||
10129 | /* Provide a relocation for the GOT entry corresponding to this | |
10130 | PLT slot. Point it at the middle of the .plt entry. */ | |
10131 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10132 | + htab->sgotplt->output_offset | |
10133 | + got_offset); | |
7325306f | 10134 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, |
9d8504b1 PB |
10135 | R_PPC_ADDR32); |
10136 | rela.r_addend = ent->plt.offset + 16; | |
10137 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10138 | } | |
10139 | ||
10140 | /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. | |
10141 | In particular, the offset for the relocation is not the | |
10142 | address of the PLT entry for this function, as specified | |
10143 | by the ABI. Instead, the offset is set to the address of | |
10144 | the GOT slot for this function. See EABI 4.4.4.1. */ | |
10145 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10146 | + htab->sgotplt->output_offset | |
10147 | + got_offset); | |
10148 | ||
a6aa5195 AM |
10149 | } |
10150 | else | |
10151 | { | |
e054468f | 10152 | asection *splt = htab->plt; |
25f23106 AM |
10153 | if (!htab->elf.dynamic_sections_created |
10154 | || h->dynindx == -1) | |
e054468f AM |
10155 | splt = htab->iplt; |
10156 | ||
10157 | rela.r_offset = (splt->output_section->vma | |
10158 | + splt->output_offset | |
9d8504b1 | 10159 | + ent->plt.offset); |
e054468f | 10160 | if (htab->plt_type == PLT_OLD |
25f23106 AM |
10161 | || !htab->elf.dynamic_sections_created |
10162 | || h->dynindx == -1) | |
9d8504b1 PB |
10163 | { |
10164 | /* We don't need to fill in the .plt. The ppc dynamic | |
10165 | linker will fill it in. */ | |
10166 | } | |
10167 | else | |
10168 | { | |
10169 | bfd_vma val = (htab->glink_pltresolve + ent->plt.offset | |
10170 | + htab->glink->output_section->vma | |
10171 | + htab->glink->output_offset); | |
10172 | bfd_put_32 (output_bfd, val, | |
e054468f | 10173 | splt->contents + ent->plt.offset); |
9d8504b1 | 10174 | } |
a6aa5195 | 10175 | } |
e1a9cb8e | 10176 | |
a6aa5195 | 10177 | /* Fill in the entry in the .rela.plt section. */ |
a6aa5195 | 10178 | rela.r_addend = 0; |
e054468f AM |
10179 | if (!htab->elf.dynamic_sections_created |
10180 | || h->dynindx == -1) | |
10181 | { | |
10182 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
10183 | && h->def_regular | |
10184 | && (h->root.type == bfd_link_hash_defined | |
10185 | || h->root.type == bfd_link_hash_defweak)); | |
10186 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
10187 | rela.r_addend = SYM_VAL (h); | |
10188 | } | |
10189 | else | |
10190 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
e1a9cb8e | 10191 | |
25f23106 AM |
10192 | if (!htab->elf.dynamic_sections_created |
10193 | || h->dynindx == -1) | |
10194 | loc = (htab->reliplt->contents | |
10195 | + (htab->reliplt->reloc_count++ | |
10196 | * sizeof (Elf32_External_Rela))); | |
e054468f | 10197 | else |
25f23106 AM |
10198 | loc = (htab->relplt->contents |
10199 | + reloc_index * sizeof (Elf32_External_Rela)); | |
a6aa5195 | 10200 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
e1a9cb8e | 10201 | |
a6aa5195 AM |
10202 | if (!h->def_regular) |
10203 | { | |
0eb4a168 AM |
10204 | /* Mark the symbol as undefined, rather than as |
10205 | defined in the .plt section. Leave the value if | |
10206 | there were any relocations where pointer equality | |
10207 | matters (this is a clue for the dynamic linker, to | |
10208 | make function pointer comparisons work between an | |
10209 | application and shared library), otherwise set it | |
10210 | to zero. */ | |
a6aa5195 | 10211 | sym->st_shndx = SHN_UNDEF; |
0eb4a168 | 10212 | if (!h->pointer_equality_needed) |
a6aa5195 | 10213 | sym->st_value = 0; |
0eb4a168 AM |
10214 | else if (!h->ref_regular_nonweak) |
10215 | { | |
625af618 AM |
10216 | /* This breaks function pointer comparisons, but |
10217 | that is better than breaking tests for a NULL | |
0eb4a168 | 10218 | function pointer. */ |
0eb4a168 AM |
10219 | sym->st_value = 0; |
10220 | } | |
a6aa5195 | 10221 | } |
de972ffa | 10222 | else if (h->type == STT_GNU_IFUNC |
0e1862bb | 10223 | && !bfd_link_pic (info)) |
de972ffa AM |
10224 | { |
10225 | /* Set the value of ifunc symbols in a non-pie | |
10226 | executable to the glink entry. This is to avoid | |
10227 | text relocations. We can't do this for ifunc in | |
10228 | allocate_dynrelocs, as we do for normal dynamic | |
10229 | function symbols with plt entries, because we need | |
10230 | to keep the original value around for the ifunc | |
10231 | relocation. */ | |
10232 | sym->st_shndx = (_bfd_elf_section_from_bfd_section | |
10233 | (output_bfd, htab->glink->output_section)); | |
5b914448 AM |
10234 | sym->st_value = (ent->glink_offset |
10235 | + htab->glink->output_offset | |
de972ffa AM |
10236 | + htab->glink->output_section->vma); |
10237 | } | |
a6aa5195 AM |
10238 | doneone = TRUE; |
10239 | } | |
e1a9cb8e | 10240 | |
e054468f | 10241 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
10242 | || !htab->elf.dynamic_sections_created |
10243 | || h->dynindx == -1) | |
a6aa5195 | 10244 | { |
a7f2871e | 10245 | unsigned char *p; |
e054468f | 10246 | asection *splt = htab->plt; |
25f23106 AM |
10247 | if (!htab->elf.dynamic_sections_created |
10248 | || h->dynindx == -1) | |
e054468f | 10249 | splt = htab->iplt; |
e1a9cb8e | 10250 | |
a7f2871e AM |
10251 | p = (unsigned char *) htab->glink->contents + ent->glink_offset; |
10252 | ||
5446cbdf | 10253 | if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
10254 | { |
10255 | bfd_put_32 (output_bfd, LWZ_11_3, p); | |
10256 | p += 4; | |
10257 | bfd_put_32 (output_bfd, LWZ_12_3 + 4, p); | |
10258 | p += 4; | |
10259 | bfd_put_32 (output_bfd, MR_0_3, p); | |
10260 | p += 4; | |
10261 | bfd_put_32 (output_bfd, CMPWI_11_0, p); | |
10262 | p += 4; | |
10263 | bfd_put_32 (output_bfd, ADD_3_12_2, p); | |
10264 | p += 4; | |
10265 | bfd_put_32 (output_bfd, BEQLR, p); | |
10266 | p += 4; | |
10267 | bfd_put_32 (output_bfd, MR_3_0, p); | |
10268 | p += 4; | |
10269 | bfd_put_32 (output_bfd, NOP, p); | |
10270 | p += 4; | |
10271 | } | |
10272 | ||
10273 | write_glink_stub (ent, splt, p, info); | |
e1a9cb8e | 10274 | |
0e1862bb | 10275 | if (!bfd_link_pic (info)) |
e054468f AM |
10276 | /* We only need one non-PIC glink stub. */ |
10277 | break; | |
a6aa5195 AM |
10278 | } |
10279 | else | |
10280 | break; | |
10281 | } | |
e1a9cb8e | 10282 | |
25dbc73a AM |
10283 | if (h->needs_copy) |
10284 | { | |
10285 | asection *s; | |
10286 | Elf_Internal_Rela rela; | |
10287 | bfd_byte *loc; | |
e1a9cb8e | 10288 | |
25dbc73a | 10289 | /* This symbols needs a copy reloc. Set it up. */ |
e1a9cb8e | 10290 | |
25dbc73a AM |
10291 | #ifdef DEBUG |
10292 | fprintf (stderr, ", copy"); | |
10293 | #endif | |
e1a9cb8e | 10294 | |
25dbc73a | 10295 | BFD_ASSERT (h->dynindx != -1); |
86bbe32f | 10296 | |
4dc4a9a5 | 10297 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
10298 | s = htab->relsbss; |
10299 | else | |
10300 | s = htab->relbss; | |
10301 | BFD_ASSERT (s != NULL); | |
e1a9cb8e | 10302 | |
e87d4038 | 10303 | rela.r_offset = SYM_VAL (h); |
25dbc73a AM |
10304 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
10305 | rela.r_addend = 0; | |
10306 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
10307 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10308 | } | |
e1a9cb8e | 10309 | |
25dbc73a AM |
10310 | #ifdef DEBUG |
10311 | fprintf (stderr, "\n"); | |
10312 | #endif | |
e1a9cb8e | 10313 | |
25dbc73a AM |
10314 | return TRUE; |
10315 | } | |
10316 | \f | |
10317 | static enum elf_reloc_type_class | |
7e612e98 AM |
10318 | ppc_elf_reloc_type_class (const struct bfd_link_info *info, |
10319 | const asection *rel_sec, | |
10320 | const Elf_Internal_Rela *rela) | |
e1a9cb8e | 10321 | { |
7e612e98 AM |
10322 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
10323 | ||
10324 | if (rel_sec == htab->reliplt) | |
10325 | return reloc_class_ifunc; | |
10326 | ||
25dbc73a AM |
10327 | switch (ELF32_R_TYPE (rela->r_info)) |
10328 | { | |
10329 | case R_PPC_RELATIVE: | |
10330 | return reloc_class_relative; | |
25dbc73a AM |
10331 | case R_PPC_JMP_SLOT: |
10332 | return reloc_class_plt; | |
10333 | case R_PPC_COPY: | |
10334 | return reloc_class_copy; | |
10335 | default: | |
10336 | return reloc_class_normal; | |
10337 | } | |
e1a9cb8e | 10338 | } |
25dbc73a AM |
10339 | \f |
10340 | /* Finish up the dynamic sections. */ | |
e1a9cb8e | 10341 | |
25dbc73a AM |
10342 | static bfd_boolean |
10343 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, | |
10344 | struct bfd_link_info *info) | |
e1a9cb8e | 10345 | { |
25dbc73a | 10346 | asection *sdyn; |
9d8504b1 | 10347 | asection *splt; |
25dbc73a | 10348 | struct ppc_elf_link_hash_table *htab; |
1fe44d79 | 10349 | bfd_vma got; |
e87d4038 AM |
10350 | bfd *dynobj; |
10351 | bfd_boolean ret = TRUE; | |
e1a9cb8e | 10352 | |
25dbc73a AM |
10353 | #ifdef DEBUG |
10354 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
10355 | #endif | |
6b0817e5 | 10356 | |
25dbc73a | 10357 | htab = ppc_elf_hash_table (info); |
9d8504b1 | 10358 | dynobj = elf_hash_table (info)->dynobj; |
3d4d4302 | 10359 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
9d8504b1 | 10360 | if (htab->is_vxworks) |
3d4d4302 | 10361 | splt = bfd_get_linker_section (dynobj, ".plt"); |
9d8504b1 PB |
10362 | else |
10363 | splt = NULL; | |
e1a9cb8e | 10364 | |
1fe44d79 AM |
10365 | got = 0; |
10366 | if (htab->elf.hgot != NULL) | |
e87d4038 | 10367 | got = SYM_VAL (htab->elf.hgot); |
1fe44d79 | 10368 | |
25dbc73a | 10369 | if (htab->elf.dynamic_sections_created) |
e1a9cb8e | 10370 | { |
25dbc73a | 10371 | Elf32_External_Dyn *dyncon, *dynconend; |
e1a9cb8e | 10372 | |
25dbc73a | 10373 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
86bbe32f | 10374 | |
25dbc73a AM |
10375 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
10376 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
10377 | for (; dyncon < dynconend; dyncon++) | |
10378 | { | |
10379 | Elf_Internal_Dyn dyn; | |
10380 | asection *s; | |
e1a9cb8e | 10381 | |
9d8504b1 | 10382 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
86bbe32f | 10383 | |
25dbc73a AM |
10384 | switch (dyn.d_tag) |
10385 | { | |
10386 | case DT_PLTGOT: | |
9d8504b1 PB |
10387 | if (htab->is_vxworks) |
10388 | s = htab->sgotplt; | |
10389 | else | |
10390 | s = htab->plt; | |
25dbc73a AM |
10391 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
10392 | break; | |
86bbe32f | 10393 | |
25dbc73a AM |
10394 | case DT_PLTRELSZ: |
10395 | dyn.d_un.d_val = htab->relplt->size; | |
10396 | break; | |
e1a9cb8e | 10397 | |
25dbc73a AM |
10398 | case DT_JMPREL: |
10399 | s = htab->relplt; | |
10400 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
10401 | break; | |
2f89ff8d | 10402 | |
1fe44d79 AM |
10403 | case DT_PPC_GOT: |
10404 | dyn.d_un.d_ptr = got; | |
d7128ce4 AM |
10405 | break; |
10406 | ||
9d8504b1 PB |
10407 | case DT_RELASZ: |
10408 | if (htab->is_vxworks) | |
10409 | { | |
10410 | if (htab->relplt) | |
10411 | dyn.d_un.d_ptr -= htab->relplt->size; | |
10412 | break; | |
10413 | } | |
10414 | continue; | |
10415 | ||
25dbc73a | 10416 | default: |
7a2b07ff NS |
10417 | if (htab->is_vxworks |
10418 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
10419 | break; | |
25dbc73a AM |
10420 | continue; |
10421 | } | |
4c45e5c9 | 10422 | |
25dbc73a AM |
10423 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
10424 | } | |
10425 | } | |
4c45e5c9 | 10426 | |
3b36f7e6 | 10427 | if (htab->got != NULL) |
25dbc73a | 10428 | { |
e79f5955 AM |
10429 | if (htab->elf.hgot->root.u.def.section == htab->got |
10430 | || htab->elf.hgot->root.u.def.section == htab->sgotplt) | |
e87d4038 | 10431 | { |
e79f5955 | 10432 | unsigned char *p = htab->elf.hgot->root.u.def.section->contents; |
2f89ff8d | 10433 | |
e87d4038 AM |
10434 | p += htab->elf.hgot->root.u.def.value; |
10435 | if (htab->plt_type == PLT_OLD) | |
e79f5955 AM |
10436 | { |
10437 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 | |
10438 | so that a function can easily find the address of | |
10439 | _GLOBAL_OFFSET_TABLE_. */ | |
10440 | BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 | |
10441 | < htab->elf.hgot->root.u.def.section->size); | |
10442 | bfd_put_32 (output_bfd, 0x4e800021, p - 4); | |
10443 | } | |
3b36f7e6 | 10444 | |
e87d4038 | 10445 | if (sdyn != NULL) |
e79f5955 AM |
10446 | { |
10447 | bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; | |
10448 | BFD_ASSERT (htab->elf.hgot->root.u.def.value | |
10449 | < htab->elf.hgot->root.u.def.section->size); | |
10450 | bfd_put_32 (output_bfd, val, p); | |
10451 | } | |
e87d4038 AM |
10452 | } |
10453 | else | |
10454 | { | |
8de848d8 | 10455 | info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"), |
25f53a85 AM |
10456 | htab->elf.hgot->root.root.string, |
10457 | (htab->sgotplt != NULL | |
10458 | ? htab->sgotplt->name : htab->got->name)); | |
e87d4038 AM |
10459 | bfd_set_error (bfd_error_bad_value); |
10460 | ret = FALSE; | |
10461 | } | |
25dbc73a AM |
10462 | |
10463 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; | |
10464 | } | |
10465 | ||
9d8504b1 PB |
10466 | /* Fill in the first entry in the VxWorks procedure linkage table. */ |
10467 | if (splt && splt->size > 0) | |
10468 | { | |
10469 | /* Use the right PLT. */ | |
0e1862bb | 10470 | const bfd_vma *plt_entry = (bfd_link_pic (info) |
5b914448 AM |
10471 | ? ppc_elf_vxworks_pic_plt0_entry |
10472 | : ppc_elf_vxworks_plt0_entry); | |
9d8504b1 | 10473 | |
0e1862bb | 10474 | if (!bfd_link_pic (info)) |
9d8504b1 | 10475 | { |
e87d4038 | 10476 | bfd_vma got_value = SYM_VAL (htab->elf.hgot); |
9d8504b1 | 10477 | |
e87d4038 | 10478 | bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), |
9d8504b1 | 10479 | splt->contents + 0); |
e87d4038 | 10480 | bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), |
9d8504b1 PB |
10481 | splt->contents + 4); |
10482 | } | |
10483 | else | |
10484 | { | |
10485 | bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); | |
10486 | bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); | |
10487 | } | |
10488 | bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); | |
10489 | bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); | |
10490 | bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); | |
10491 | bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); | |
10492 | bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); | |
10493 | bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); | |
10494 | ||
0e1862bb | 10495 | if (! bfd_link_pic (info)) |
9d8504b1 PB |
10496 | { |
10497 | Elf_Internal_Rela rela; | |
10498 | bfd_byte *loc; | |
10499 | ||
10500 | loc = htab->srelplt2->contents; | |
10501 | ||
10502 | /* Output the @ha relocation for the first instruction. */ | |
10503 | rela.r_offset = (htab->plt->output_section->vma | |
10504 | + htab->plt->output_offset | |
10505 | + 2); | |
636ce3f5 | 10506 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10507 | rela.r_addend = 0; |
10508 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10509 | loc += sizeof (Elf32_External_Rela); | |
5b914448 | 10510 | |
9d8504b1 PB |
10511 | /* Output the @l relocation for the second instruction. */ |
10512 | rela.r_offset = (htab->plt->output_section->vma | |
10513 | + htab->plt->output_offset | |
10514 | + 6); | |
636ce3f5 | 10515 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10516 | rela.r_addend = 0; |
10517 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10518 | loc += sizeof (Elf32_External_Rela); | |
10519 | ||
10520 | /* Fix up the remaining relocations. They may have the wrong | |
10521 | symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
10522 | in which symbols were output. */ | |
10523 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
10524 | { | |
10525 | Elf_Internal_Rela rel; | |
10526 | ||
10527 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10528 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10529 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10530 | loc += sizeof (Elf32_External_Rela); | |
10531 | ||
10532 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10533 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10534 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10535 | loc += sizeof (Elf32_External_Rela); | |
10536 | ||
10537 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
7325306f | 10538 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); |
9d8504b1 PB |
10539 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10540 | loc += sizeof (Elf32_External_Rela); | |
10541 | } | |
10542 | } | |
10543 | } | |
10544 | ||
e054468f AM |
10545 | if (htab->glink != NULL |
10546 | && htab->glink->contents != NULL | |
10547 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
10548 | { |
10549 | unsigned char *p; | |
10550 | unsigned char *endp; | |
a6aa5195 | 10551 | bfd_vma res0; |
d7128ce4 | 10552 | unsigned int i; |
a6aa5195 AM |
10553 | |
10554 | /* | |
10555 | * PIC glink code is the following: | |
10556 | * | |
10557 | * # ith PLT code stub. | |
10558 | * addis 11,30,(plt+(i-1)*4-got)@ha | |
10559 | * lwz 11,(plt+(i-1)*4-got)@l(11) | |
10560 | * mtctr 11 | |
10561 | * bctr | |
10562 | * | |
10563 | * # A table of branches, one for each plt entry. | |
176a0d42 | 10564 | * # The idea is that the plt call stub loads ctr and r11 with these |
a6aa5195 AM |
10565 | * # addresses, so (r11 - res_0) gives the plt index * 4. |
10566 | * res_0: b PLTresolve | |
10567 | * res_1: b PLTresolve | |
10568 | * . | |
10569 | * # Some number of entries towards the end can be nops | |
10570 | * res_n_m3: nop | |
10571 | * res_n_m2: nop | |
10572 | * res_n_m1: | |
10573 | * | |
10574 | * PLTresolve: | |
10575 | * addis 11,11,(1f-res_0)@ha | |
10576 | * mflr 0 | |
10577 | * bcl 20,31,1f | |
10578 | * 1: addi 11,11,(1b-res_0)@l | |
10579 | * mflr 12 | |
10580 | * mtlr 0 | |
10581 | * sub 11,11,12 # r11 = index * 4 | |
10582 | * addis 12,12,(got+4-1b)@ha | |
10583 | * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve | |
10584 | * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address | |
10585 | * mtctr 0 | |
10586 | * add 0,11,11 | |
10587 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10588 | * bctr | |
10589 | */ | |
10590 | static const unsigned int pic_plt_resolve[] = | |
10591 | { | |
10592 | ADDIS_11_11, | |
10593 | MFLR_0, | |
10594 | BCL_20_31, | |
10595 | ADDI_11_11, | |
10596 | MFLR_12, | |
10597 | MTLR_0, | |
10598 | SUB_11_11_12, | |
10599 | ADDIS_12_12, | |
10600 | LWZ_0_12, | |
10601 | LWZ_12_12, | |
10602 | MTCTR_0, | |
10603 | ADD_0_11_11, | |
10604 | ADD_11_0_11, | |
10605 | BCTR, | |
10606 | NOP, | |
10607 | NOP | |
10608 | }; | |
10609 | ||
176a0d42 AM |
10610 | /* |
10611 | * Non-PIC glink code is a little simpler. | |
10612 | * | |
10613 | * # ith PLT code stub. | |
10614 | * lis 11,(plt+(i-1)*4)@ha | |
10615 | * lwz 11,(plt+(i-1)*4)@l(11) | |
10616 | * mtctr 11 | |
10617 | * bctr | |
10618 | * | |
10619 | * The branch table is the same, then comes | |
10620 | * | |
10621 | * PLTresolve: | |
10622 | * lis 12,(got+4)@ha | |
10623 | * addis 11,11,(-res_0)@ha | |
10624 | * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve | |
10625 | * addi 11,11,(-res_0)@l # r11 = index * 4 | |
10626 | * mtctr 0 | |
10627 | * add 0,11,11 | |
10628 | * lwz 12,(got+8)@l(12) # got[2] contains the map address | |
10629 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10630 | * bctr | |
10631 | */ | |
d7128ce4 AM |
10632 | static const unsigned int plt_resolve[] = |
10633 | { | |
a6aa5195 AM |
10634 | LIS_12, |
10635 | ADDIS_11_11, | |
10636 | LWZ_0_12, | |
10637 | ADDI_11_11, | |
d7128ce4 | 10638 | MTCTR_0, |
7e8aeb9a | 10639 | ADD_0_11_11, |
a6aa5195 | 10640 | LWZ_12_12, |
7e8aeb9a | 10641 | ADD_11_0_11, |
d7128ce4 AM |
10642 | BCTR, |
10643 | NOP, | |
10644 | NOP, | |
a6aa5195 AM |
10645 | NOP, |
10646 | NOP, | |
10647 | NOP, | |
10648 | NOP, | |
d7128ce4 AM |
10649 | NOP |
10650 | }; | |
10651 | ||
a6aa5195 AM |
10652 | if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) |
10653 | abort (); | |
10654 | if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) | |
7e8aeb9a AM |
10655 | abort (); |
10656 | ||
a6aa5195 | 10657 | /* Build the branch table, one for each plt entry (less one), |
86b9da88 | 10658 | and perhaps some padding. */ |
a6aa5195 AM |
10659 | p = htab->glink->contents; |
10660 | p += htab->glink_pltresolve; | |
86b9da88 AM |
10661 | endp = htab->glink->contents; |
10662 | endp += htab->glink->size - GLINK_PLTRESOLVE; | |
da3a2088 | 10663 | while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4)) |
86b9da88 AM |
10664 | { |
10665 | bfd_put_32 (output_bfd, B + endp - p, p); | |
10666 | p += 4; | |
10667 | } | |
10668 | while (p < endp) | |
10669 | { | |
10670 | bfd_put_32 (output_bfd, NOP, p); | |
10671 | p += 4; | |
10672 | } | |
10673 | ||
7e8aeb9a | 10674 | res0 = (htab->glink_pltresolve |
86b9da88 AM |
10675 | + htab->glink->output_section->vma |
10676 | + htab->glink->output_offset); | |
10677 | ||
da3a2088 AM |
10678 | if (htab->params->ppc476_workaround) |
10679 | { | |
10680 | /* Ensure that a call stub at the end of a page doesn't | |
10681 | result in prefetch over the end of the page into the | |
10682 | glink branch table. */ | |
10683 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; | |
10684 | bfd_vma page_addr; | |
10685 | bfd_vma glink_start = (htab->glink->output_section->vma | |
10686 | + htab->glink->output_offset); | |
10687 | ||
10688 | for (page_addr = res0 & -pagesize; | |
10689 | page_addr > glink_start; | |
10690 | page_addr -= pagesize) | |
10691 | { | |
10692 | /* We have a plt call stub that may need fixing. */ | |
10693 | bfd_byte *loc; | |
10694 | unsigned int insn; | |
10695 | ||
10696 | loc = htab->glink->contents + page_addr - 4 - glink_start; | |
10697 | insn = bfd_get_32 (output_bfd, loc); | |
10698 | if (insn == BCTR) | |
10699 | { | |
10700 | /* By alignment, we know that there must be at least | |
10701 | one other call stub before this one. */ | |
10702 | insn = bfd_get_32 (output_bfd, loc - 16); | |
10703 | if (insn == BCTR) | |
10704 | bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc); | |
10705 | else | |
10706 | bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc); | |
10707 | } | |
10708 | } | |
10709 | } | |
10710 | ||
86b9da88 | 10711 | /* Last comes the PLTresolve stub. */ |
0e1862bb | 10712 | if (bfd_link_pic (info)) |
7e8aeb9a | 10713 | { |
a6aa5195 | 10714 | bfd_vma bcl; |
d7128ce4 | 10715 | |
a6aa5195 | 10716 | for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) |
7e8aeb9a | 10717 | { |
da3a2088 AM |
10718 | unsigned int insn = pic_plt_resolve[i]; |
10719 | ||
10720 | if (htab->params->ppc476_workaround && insn == NOP) | |
10721 | insn = BA + 0; | |
10722 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10723 | p += 4; |
10724 | } | |
a6aa5195 AM |
10725 | p -= 4 * ARRAY_SIZE (pic_plt_resolve); |
10726 | ||
10727 | bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 | |
10728 | + htab->glink->output_section->vma | |
10729 | + htab->glink->output_offset); | |
10730 | ||
10731 | bfd_put_32 (output_bfd, | |
10732 | ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); | |
10733 | bfd_put_32 (output_bfd, | |
10734 | ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); | |
10735 | bfd_put_32 (output_bfd, | |
10736 | ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); | |
10737 | if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) | |
10738 | { | |
10739 | bfd_put_32 (output_bfd, | |
10740 | LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10741 | bfd_put_32 (output_bfd, | |
10742 | LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); | |
10743 | } | |
10744 | else | |
10745 | { | |
10746 | bfd_put_32 (output_bfd, | |
10747 | LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10748 | bfd_put_32 (output_bfd, | |
10749 | LWZ_12_12 + 4, p + 9*4); | |
10750 | } | |
7e8aeb9a AM |
10751 | } |
10752 | else | |
d7128ce4 | 10753 | { |
a6aa5195 | 10754 | for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) |
7e8aeb9a | 10755 | { |
da3a2088 AM |
10756 | unsigned int insn = plt_resolve[i]; |
10757 | ||
10758 | if (htab->params->ppc476_workaround && insn == NOP) | |
10759 | insn = BA + 0; | |
10760 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10761 | p += 4; |
10762 | } | |
a6aa5195 AM |
10763 | p -= 4 * ARRAY_SIZE (plt_resolve); |
10764 | ||
10765 | bfd_put_32 (output_bfd, | |
10766 | LIS_12 + PPC_HA (got + 4), p + 0*4); | |
10767 | bfd_put_32 (output_bfd, | |
10768 | ADDIS_11_11 + PPC_HA (-res0), p + 1*4); | |
10769 | bfd_put_32 (output_bfd, | |
10770 | ADDI_11_11 + PPC_LO (-res0), p + 3*4); | |
10771 | if (PPC_HA (got + 4) == PPC_HA (got + 8)) | |
10772 | { | |
10773 | bfd_put_32 (output_bfd, | |
10774 | LWZ_0_12 + PPC_LO (got + 4), p + 2*4); | |
10775 | bfd_put_32 (output_bfd, | |
10776 | LWZ_12_12 + PPC_LO (got + 8), p + 6*4); | |
10777 | } | |
10778 | else | |
10779 | { | |
10780 | bfd_put_32 (output_bfd, | |
10781 | LWZU_0_12 + PPC_LO (got + 4), p + 2*4); | |
10782 | bfd_put_32 (output_bfd, | |
10783 | LWZ_12_12 + 4, p + 6*4); | |
10784 | } | |
d7128ce4 | 10785 | } |
d7128ce4 AM |
10786 | } |
10787 | ||
6177242a AM |
10788 | if (htab->glink_eh_frame != NULL |
10789 | && htab->glink_eh_frame->contents != NULL) | |
10790 | { | |
10791 | unsigned char *p = htab->glink_eh_frame->contents; | |
10792 | bfd_vma val; | |
10793 | ||
6177242a AM |
10794 | p += sizeof (glink_eh_frame_cie); |
10795 | /* FDE length. */ | |
6177242a AM |
10796 | p += 4; |
10797 | /* CIE pointer. */ | |
6177242a AM |
10798 | p += 4; |
10799 | /* Offset to .glink. */ | |
10800 | val = (htab->glink->output_section->vma | |
10801 | + htab->glink->output_offset); | |
10802 | val -= (htab->glink_eh_frame->output_section->vma | |
10803 | + htab->glink_eh_frame->output_offset); | |
10804 | val -= p - htab->glink_eh_frame->contents; | |
10805 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6177242a | 10806 | |
dbaa2011 | 10807 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
6177242a AM |
10808 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
10809 | htab->glink_eh_frame, | |
10810 | htab->glink_eh_frame->contents)) | |
10811 | return FALSE; | |
10812 | } | |
10813 | ||
e87d4038 | 10814 | return ret; |
25dbc73a | 10815 | } |
e1a9cb8e | 10816 | \f |
6d00b590 | 10817 | #define TARGET_LITTLE_SYM powerpc_elf32_le_vec |
252b5132 | 10818 | #define TARGET_LITTLE_NAME "elf32-powerpcle" |
6d00b590 | 10819 | #define TARGET_BIG_SYM powerpc_elf32_vec |
252b5132 RH |
10820 | #define TARGET_BIG_NAME "elf32-powerpc" |
10821 | #define ELF_ARCH bfd_arch_powerpc | |
ae95ffa6 | 10822 | #define ELF_TARGET_ID PPC32_ELF_DATA |
252b5132 | 10823 | #define ELF_MACHINE_CODE EM_PPC |
d0facd1b NC |
10824 | #ifdef __QNXTARGET__ |
10825 | #define ELF_MAXPAGESIZE 0x1000 | |
04c6a44c | 10826 | #define ELF_COMMONPAGESIZE 0x1000 |
d0facd1b | 10827 | #else |
252b5132 | 10828 | #define ELF_MAXPAGESIZE 0x10000 |
04c6a44c | 10829 | #define ELF_COMMONPAGESIZE 0x10000 |
d0facd1b | 10830 | #endif |
b1342370 | 10831 | #define ELF_MINPAGESIZE 0x1000 |
252b5132 RH |
10832 | #define elf_info_to_howto ppc_elf_info_to_howto |
10833 | ||
10834 | #ifdef EM_CYGNUS_POWERPC | |
10835 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
10836 | #endif | |
10837 | ||
10838 | #ifdef EM_PPC_OLD | |
10839 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
10840 | #endif | |
10841 | ||
10842 | #define elf_backend_plt_not_loaded 1 | |
252b5132 | 10843 | #define elf_backend_can_gc_sections 1 |
51b64d56 | 10844 | #define elf_backend_can_refcount 1 |
b491616a | 10845 | #define elf_backend_rela_normal 1 |
53291d1f | 10846 | #define elf_backend_caches_rawsize 1 |
252b5132 | 10847 | |
43c40ab2 | 10848 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 10849 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 10850 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 | 10851 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
b9c361e0 | 10852 | #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup |
252b5132 | 10853 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
70bccea4 | 10854 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
468392fb | 10855 | #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab |
252b5132 | 10856 | |
feee612b | 10857 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
10858 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
10859 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
10860 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
10861 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
10862 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
10863 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 10864 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
10865 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
10866 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
10867 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
0eb4a168 | 10868 | #define elf_backend_hash_symbol ppc_elf_hash_symbol |
252b5132 RH |
10869 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
10870 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
10871 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
10872 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
b9c361e0 | 10873 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map |
c5fccbec DJ |
10874 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
10875 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
183e98be | 10876 | #define elf_backend_write_core_note ppc_elf_write_core_note |
29c2fb7c | 10877 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
10878 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
10879 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
10880 | #define elf_backend_write_section ppc_elf_write_section | |
551b43fd | 10881 | #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr |
4c45e5c9 | 10882 | #define elf_backend_plt_sym_val ppc_elf_plt_sym_val |
8a696751 | 10883 | #define elf_backend_action_discarded ppc_elf_action_discarded |
74541ad4 | 10884 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
b9c361e0 | 10885 | #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags |
252b5132 RH |
10886 | |
10887 | #include "elf32-target.h" | |
9d8504b1 | 10888 | |
7b8e7dad AM |
10889 | /* FreeBSD Target */ |
10890 | ||
10891 | #undef TARGET_LITTLE_SYM | |
10892 | #undef TARGET_LITTLE_NAME | |
10893 | ||
10894 | #undef TARGET_BIG_SYM | |
6d00b590 | 10895 | #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec |
7b8e7dad AM |
10896 | #undef TARGET_BIG_NAME |
10897 | #define TARGET_BIG_NAME "elf32-powerpc-freebsd" | |
10898 | ||
10899 | #undef ELF_OSABI | |
10900 | #define ELF_OSABI ELFOSABI_FREEBSD | |
10901 | ||
10902 | #undef elf32_bed | |
10903 | #define elf32_bed elf32_powerpc_fbsd_bed | |
10904 | ||
10905 | #include "elf32-target.h" | |
10906 | ||
9d8504b1 PB |
10907 | /* VxWorks Target */ |
10908 | ||
10909 | #undef TARGET_LITTLE_SYM | |
10910 | #undef TARGET_LITTLE_NAME | |
10911 | ||
10912 | #undef TARGET_BIG_SYM | |
6d00b590 | 10913 | #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec |
9d8504b1 PB |
10914 | #undef TARGET_BIG_NAME |
10915 | #define TARGET_BIG_NAME "elf32-powerpc-vxworks" | |
10916 | ||
7b8e7dad AM |
10917 | #undef ELF_OSABI |
10918 | ||
d5e3d971 PB |
10919 | /* VxWorks uses the elf default section flags for .plt. */ |
10920 | static const struct bfd_elf_special_section * | |
10921 | ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
9d8504b1 | 10922 | { |
d5e3d971 PB |
10923 | if (sec->name == NULL) |
10924 | return NULL; | |
10925 | ||
10926 | if (strcmp (sec->name, ".plt") == 0) | |
10927 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
10928 | ||
10929 | return ppc_elf_get_sec_type_attr (abfd, sec); | |
10930 | } | |
9d8504b1 PB |
10931 | |
10932 | /* Like ppc_elf_link_hash_table_create, but overrides | |
10933 | appropriately for VxWorks. */ | |
10934 | static struct bfd_link_hash_table * | |
10935 | ppc_elf_vxworks_link_hash_table_create (bfd *abfd) | |
10936 | { | |
10937 | struct bfd_link_hash_table *ret; | |
10938 | ||
10939 | ret = ppc_elf_link_hash_table_create (abfd); | |
10940 | if (ret) | |
10941 | { | |
10942 | struct ppc_elf_link_hash_table *htab | |
10943 | = (struct ppc_elf_link_hash_table *)ret; | |
10944 | htab->is_vxworks = 1; | |
4a3dc543 | 10945 | htab->plt_type = PLT_VXWORKS; |
9d8504b1 PB |
10946 | htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; |
10947 | htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; | |
10948 | htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; | |
10949 | } | |
10950 | return ret; | |
10951 | } | |
10952 | ||
10953 | /* Tweak magic VxWorks symbols as they are loaded. */ | |
10954 | static bfd_boolean | |
10955 | ppc_elf_vxworks_add_symbol_hook (bfd *abfd, | |
10956 | struct bfd_link_info *info, | |
10957 | Elf_Internal_Sym *sym, | |
10958 | const char **namep ATTRIBUTE_UNUSED, | |
10959 | flagword *flagsp ATTRIBUTE_UNUSED, | |
10960 | asection **secp, | |
10961 | bfd_vma *valp) | |
10962 | { | |
10963 | if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, | |
10964 | valp)) | |
10965 | return FALSE; | |
10966 | ||
10967 | return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); | |
10968 | } | |
10969 | ||
9d8504b1 PB |
10970 | static void |
10971 | ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
10972 | { | |
10973 | ppc_elf_final_write_processing(abfd, linker); | |
10974 | elf_vxworks_final_write_processing(abfd, linker); | |
10975 | } | |
10976 | ||
10977 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
10978 | define it. */ | |
10979 | #undef elf_backend_want_plt_sym | |
10980 | #define elf_backend_want_plt_sym 1 | |
10981 | #undef elf_backend_want_got_plt | |
10982 | #define elf_backend_want_got_plt 1 | |
10983 | #undef elf_backend_got_symbol_offset | |
10984 | #define elf_backend_got_symbol_offset 0 | |
10985 | #undef elf_backend_plt_not_loaded | |
10986 | #define elf_backend_plt_not_loaded 0 | |
10987 | #undef elf_backend_plt_readonly | |
10988 | #define elf_backend_plt_readonly 1 | |
10989 | #undef elf_backend_got_header_size | |
10990 | #define elf_backend_got_header_size 12 | |
10991 | ||
468392fb AM |
10992 | #undef bfd_elf32_get_synthetic_symtab |
10993 | ||
9d8504b1 PB |
10994 | #undef bfd_elf32_bfd_link_hash_table_create |
10995 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10996 | ppc_elf_vxworks_link_hash_table_create | |
9d8504b1 PB |
10997 | #undef elf_backend_add_symbol_hook |
10998 | #define elf_backend_add_symbol_hook \ | |
10999 | ppc_elf_vxworks_add_symbol_hook | |
11000 | #undef elf_backend_link_output_symbol_hook | |
11001 | #define elf_backend_link_output_symbol_hook \ | |
9c72ff84 | 11002 | elf_vxworks_link_output_symbol_hook |
9d8504b1 PB |
11003 | #undef elf_backend_final_write_processing |
11004 | #define elf_backend_final_write_processing \ | |
11005 | ppc_elf_vxworks_final_write_processing | |
d5e3d971 PB |
11006 | #undef elf_backend_get_sec_type_attr |
11007 | #define elf_backend_get_sec_type_attr \ | |
11008 | ppc_elf_vxworks_get_sec_type_attr | |
9d8504b1 PB |
11009 | #undef elf_backend_emit_relocs |
11010 | #define elf_backend_emit_relocs \ | |
11011 | elf_vxworks_emit_relocs | |
11012 | ||
11013 | #undef elf32_bed | |
11014 | #define elf32_bed ppc_elf_vxworks_bed | |
e054468f | 11015 | #undef elf_backend_post_process_headers |
9d8504b1 PB |
11016 | |
11017 | #include "elf32-target.h" |