Commit | Line | Data |
---|---|---|
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 */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
432 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ |
252b5132 RH |
448 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
464 | ppc_elf_addr16_ha_reloc, /* special_function */ |
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 RH |
478 | 0, /* bitpos */ |
479 | complain_overflow_signed, /* complain_on_overflow */ | |
480 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ |
252b5132 RH |
499 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
515 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
530 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
625 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
641 | bfd_elf_generic_reloc, /* special_function */ |
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 */ | |
657 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ |
252b5132 RH |
673 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
689 | ppc_elf_addr16_ha_reloc, /* special_function */ |
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 */ | |
705 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ |
252b5132 RH |
720 | bfd_elf_generic_reloc, /* special_function */ |
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 */ | |
735 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ |
252b5132 RH |
750 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
252b5132 RH |
765 | ppc_elf_addr16_ha_reloc, /* special_function */ |
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 */ |
7619e7c7 AM |
1241 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
7619e7c7 AM |
1256 | bfd_elf_generic_reloc, /* special_function */ |
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 */ | |
1271 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
1286 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
25dbc73a AM |
1303 | ppc_elf_addr16_ha_reloc, /* special_function */ |
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 */ |
25dbc73a AM |
1320 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
25dbc73a AM |
1337 | bfd_elf_generic_reloc, /* special_function */ |
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 */ | |
1353 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
1370 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
1394 | bfd_elf_generic_reloc, /* special_function */ | |
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 */ | |
1428 | 0xfe, /* dst_mask */ | |
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 */ |
b9c361e0 JL |
1454 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
b9c361e0 JL |
1469 | bfd_elf_generic_reloc, /* special_function */ |
1470 | "R_PPC_VLE_LO16D", /* name */ | |
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 */ |
b9c361e0 JL |
1484 | bfd_elf_generic_reloc, /* special_function */ |
1485 | "R_PPC_VLE_HI16A", /* name */ | |
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 */ |
b9c361e0 JL |
1499 | bfd_elf_generic_reloc, /* special_function */ |
1500 | "R_PPC_VLE_HI16D", /* name */ | |
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 */ |
b9c361e0 JL |
1514 | bfd_elf_generic_reloc, /* special_function */ |
1515 | "R_PPC_VLE_HA16A", /* name */ | |
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 */ |
b9c361e0 JL |
1529 | bfd_elf_generic_reloc, /* special_function */ |
1530 | "R_PPC_VLE_HA16D", /* name */ | |
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 */ |
b9c361e0 JL |
1546 | bfd_elf_generic_reloc, /* special_function */ |
1547 | "R_PPC_VLE_SDA21", /* name */ | |
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 */ |
b9c361e0 JL |
1561 | bfd_elf_generic_reloc, /* special_function */ |
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 */ | |
86c95733 | 1575 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1576 | bfd_elf_generic_reloc, /* special_function */ |
1577 | "R_PPC_VLE_SDAREL_LO16A", /* name */ | |
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 */ | |
86c95733 | 1590 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1591 | bfd_elf_generic_reloc, /* special_function */ |
1592 | "R_PPC_VLE_SDAREL_LO16D", /* name */ | |
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. */ | |
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 */ | |
86c95733 | 1605 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1606 | bfd_elf_generic_reloc, /* special_function */ |
1607 | "R_PPC_VLE_SDAREL_HI16A", /* name */ | |
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. */ | |
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 */ | |
86c95733 | 1620 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1621 | bfd_elf_generic_reloc, /* special_function */ |
1622 | "R_PPC_VLE_SDAREL_HI16D", /* name */ | |
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. */ | |
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 */ | |
86c95733 | 1635 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1636 | bfd_elf_generic_reloc, /* special_function */ |
1637 | "R_PPC_VLE_SDAREL_HA16A", /* name */ | |
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. */ | |
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 */ | |
86c95733 | 1650 | complain_overflow_dont, /* complain_on_overflow */ |
b9c361e0 JL |
1651 | bfd_elf_generic_reloc, /* special_function */ |
1652 | "R_PPC_VLE_SDAREL_HA16D", /* name */ | |
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 */ |
e054468f AM |
1665 | bfd_elf_generic_reloc, /* special_function */ |
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 */ |
7619e7c7 | 1786 | bfd_elf_generic_reloc, /* special_function */ |
25dbc73a | 1787 | "R_PPC_TOC16", /* name */ |
7619e7c7 AM |
1788 | FALSE, /* partial_inplace */ |
1789 | 0, /* src_mask */ | |
1790 | 0xffff, /* dst_mask */ | |
1791 | FALSE), /* pcrel_offset */ | |
25dbc73a | 1792 | }; |
70a38d42 SDJ |
1793 | |
1794 | /* External 32-bit PPC structure for PRPSINFO. This structure is | |
1795 | ABI-defined, thus we choose to use char arrays here in order to | |
1796 | avoid dealing with different types in different architectures. | |
1797 | ||
1798 | The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while | |
1799 | most non-PPC architectures use `short int'. | |
1800 | ||
1801 | This structure will ultimately be written in the corefile's note | |
1802 | section, as the PRPSINFO. */ | |
1803 | ||
1804 | struct elf_external_ppc_linux_prpsinfo32 | |
1805 | { | |
1806 | char pr_state; /* Numeric process state. */ | |
1807 | char pr_sname; /* Char for pr_state. */ | |
1808 | char pr_zomb; /* Zombie. */ | |
1809 | char pr_nice; /* Nice val. */ | |
1810 | char pr_flag[4]; /* Flags. */ | |
1811 | char pr_uid[4]; | |
1812 | char pr_gid[4]; | |
1813 | char pr_pid[4]; | |
1814 | char pr_ppid[4]; | |
1815 | char pr_pgrp[4]; | |
1816 | char pr_sid[4]; | |
1817 | char pr_fname[16]; /* Filename of executable. */ | |
1818 | char pr_psargs[80]; /* Initial part of arg list. */ | |
1819 | }; | |
1820 | ||
aeb70569 AM |
1821 | /* Helper function to copy an elf_internal_linux_prpsinfo in host |
1822 | endian to an elf_external_ppc_linux_prpsinfo32 in target endian. */ | |
70a38d42 | 1823 | |
aeb70569 AM |
1824 | static inline void |
1825 | swap_ppc_linux_prpsinfo32_out (bfd *obfd, | |
1826 | const struct elf_internal_linux_prpsinfo *from, | |
1827 | struct elf_external_ppc_linux_prpsinfo32 *to) | |
1828 | { | |
1829 | bfd_put_8 (obfd, from->pr_state, &to->pr_state); | |
1830 | bfd_put_8 (obfd, from->pr_sname, &to->pr_sname); | |
1831 | bfd_put_8 (obfd, from->pr_zomb, &to->pr_zomb); | |
1832 | bfd_put_8 (obfd, from->pr_nice, &to->pr_nice); | |
1833 | bfd_put_32 (obfd, from->pr_flag, to->pr_flag); | |
1834 | bfd_put_32 (obfd, from->pr_uid, to->pr_uid); | |
1835 | bfd_put_32 (obfd, from->pr_gid, to->pr_gid); | |
1836 | bfd_put_32 (obfd, from->pr_pid, to->pr_pid); | |
1837 | bfd_put_32 (obfd, from->pr_ppid, to->pr_ppid); | |
1838 | bfd_put_32 (obfd, from->pr_pgrp, to->pr_pgrp); | |
1839 | bfd_put_32 (obfd, from->pr_sid, to->pr_sid); | |
1840 | strncpy (to->pr_fname, from->pr_fname, sizeof (to->pr_fname)); | |
1841 | strncpy (to->pr_psargs, from->pr_psargs, sizeof (to->pr_psargs)); | |
1842 | } | |
25dbc73a AM |
1843 | \f |
1844 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1845 | ||
1846 | static void | |
1847 | ppc_elf_howto_init (void) | |
1848 | { | |
1849 | unsigned int i, type; | |
1850 | ||
1851 | for (i = 0; | |
1852 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1853 | i++) | |
1854 | { | |
1855 | type = ppc_elf_howto_raw[i].type; | |
1856 | if (type >= (sizeof (ppc_elf_howto_table) | |
1857 | / sizeof (ppc_elf_howto_table[0]))) | |
1858 | abort (); | |
1859 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; | |
1860 | } | |
1861 | } | |
1862 | ||
1863 | static reloc_howto_type * | |
1864 | ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1865 | bfd_reloc_code_real_type code) | |
1866 | { | |
1867 | enum elf_ppc_reloc_type r; | |
1868 | ||
1869 | /* Initialize howto table if not already done. */ | |
1870 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
1871 | ppc_elf_howto_init (); | |
1872 | ||
1873 | switch (code) | |
1874 | { | |
1875 | default: | |
1876 | return NULL; | |
1877 | ||
1878 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; | |
1879 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
1880 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
1fe532cf | 1881 | case BFD_RELOC_PPC64_ADDR16_DS: |
25dbc73a | 1882 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; |
1fe532cf | 1883 | case BFD_RELOC_PPC64_ADDR16_LO_DS: |
25dbc73a AM |
1884 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; |
1885 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
1886 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
1887 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
1888 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
1889 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
1890 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
1891 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
1892 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
1893 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
1fe532cf | 1894 | case BFD_RELOC_PPC64_GOT16_DS: |
25dbc73a | 1895 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; |
1fe532cf | 1896 | case BFD_RELOC_PPC64_GOT16_LO_DS: |
25dbc73a AM |
1897 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; |
1898 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
1899 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
1900 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
1901 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
1902 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
1903 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
1904 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
1905 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
1906 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
1fe532cf | 1907 | case BFD_RELOC_PPC64_PLT16_LO_DS: |
25dbc73a AM |
1908 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; |
1909 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
1910 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
1911 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
1fe532cf | 1912 | case BFD_RELOC_PPC64_SECTOFF_DS: |
25dbc73a | 1913 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; |
1fe532cf | 1914 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: |
25dbc73a AM |
1915 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; |
1916 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
1917 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
1918 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
1fe532cf | 1919 | case BFD_RELOC_PPC64_TOC16_DS: |
25dbc73a AM |
1920 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; |
1921 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
727fc41e AM |
1922 | case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break; |
1923 | case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break; | |
25dbc73a | 1924 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; |
1fe532cf | 1925 | case BFD_RELOC_PPC64_TPREL16_DS: |
25dbc73a | 1926 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; |
1fe532cf | 1927 | case BFD_RELOC_PPC64_TPREL16_LO_DS: |
25dbc73a AM |
1928 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; |
1929 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
1930 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
1931 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
1fe532cf | 1932 | case BFD_RELOC_PPC64_DTPREL16_DS: |
25dbc73a | 1933 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; |
1fe532cf | 1934 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: |
25dbc73a AM |
1935 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; |
1936 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
1937 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
1938 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
1939 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
1940 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
1941 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
1942 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
1943 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
1944 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
1945 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
1946 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
1947 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
1948 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
1949 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
1950 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
1951 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
1952 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
1953 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
1954 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
1955 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
1956 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
1957 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
1958 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
1959 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
1960 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
1961 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
1962 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
1963 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
1964 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
1965 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
1966 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
1967 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
1968 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
1969 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
1970 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
b9c361e0 JL |
1971 | case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break; |
1972 | case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break; | |
1973 | case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break; | |
1974 | case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break; | |
1975 | case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break; | |
1976 | case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break; | |
1977 | case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break; | |
1978 | case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break; | |
1979 | case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break; | |
1980 | case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break; | |
1981 | case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break; | |
1982 | case BFD_RELOC_PPC_VLE_SDAREL_LO16A: | |
1983 | r = R_PPC_VLE_SDAREL_LO16A; | |
1984 | break; | |
1985 | case BFD_RELOC_PPC_VLE_SDAREL_LO16D: | |
1986 | r = R_PPC_VLE_SDAREL_LO16D; | |
1987 | break; | |
1988 | case BFD_RELOC_PPC_VLE_SDAREL_HI16A: | |
1989 | r = R_PPC_VLE_SDAREL_HI16A; | |
1990 | break; | |
1991 | case BFD_RELOC_PPC_VLE_SDAREL_HI16D: | |
1992 | r = R_PPC_VLE_SDAREL_HI16D; | |
1993 | break; | |
1994 | case BFD_RELOC_PPC_VLE_SDAREL_HA16A: | |
1995 | r = R_PPC_VLE_SDAREL_HA16A; | |
1996 | break; | |
1997 | case BFD_RELOC_PPC_VLE_SDAREL_HA16D: | |
1998 | r = R_PPC_VLE_SDAREL_HA16D; | |
1999 | break; | |
d7128ce4 AM |
2000 | case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break; |
2001 | case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break; | |
2002 | case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break; | |
2003 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break; | |
a680de9a | 2004 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC_REL16DX_HA; break; |
25dbc73a AM |
2005 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; |
2006 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
2007 | } | |
2008 | ||
2009 | return ppc_elf_howto_table[r]; | |
2010 | }; | |
2011 | ||
157090f7 AM |
2012 | static reloc_howto_type * |
2013 | ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
2014 | const char *r_name) | |
2015 | { | |
2016 | unsigned int i; | |
2017 | ||
2018 | for (i = 0; | |
2019 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
2020 | i++) | |
2021 | if (ppc_elf_howto_raw[i].name != NULL | |
2022 | && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0) | |
2023 | return &ppc_elf_howto_raw[i]; | |
2024 | ||
2025 | return NULL; | |
2026 | } | |
2027 | ||
25dbc73a AM |
2028 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
2029 | ||
2030 | static void | |
2031 | ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
2032 | arelent *cache_ptr, | |
2033 | Elf_Internal_Rela *dst) | |
2034 | { | |
cd21f5da NC |
2035 | unsigned int r_type; |
2036 | ||
25dbc73a AM |
2037 | /* Initialize howto table if not already done. */ |
2038 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
2039 | ppc_elf_howto_init (); | |
2040 | ||
cd21f5da NC |
2041 | r_type = ELF32_R_TYPE (dst->r_info); |
2042 | if (r_type >= R_PPC_max) | |
2043 | { | |
64d29018 | 2044 | (*_bfd_error_handler) (_("%B: unrecognised PPC reloc number: %d"), |
cd21f5da NC |
2045 | abfd, r_type); |
2046 | bfd_set_error (bfd_error_bad_value); | |
2047 | r_type = R_PPC_NONE; | |
2048 | } | |
2049 | cache_ptr->howto = ppc_elf_howto_table[r_type]; | |
375de94a AM |
2050 | |
2051 | /* Just because the above assert didn't trigger doesn't mean that | |
2052 | ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */ | |
2053 | if (!cache_ptr->howto) | |
2054 | { | |
2055 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
cd21f5da | 2056 | abfd, r_type); |
375de94a AM |
2057 | bfd_set_error (bfd_error_bad_value); |
2058 | ||
2059 | cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE]; | |
2060 | } | |
25dbc73a AM |
2061 | } |
2062 | ||
d7128ce4 | 2063 | /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */ |
25dbc73a AM |
2064 | |
2065 | static bfd_reloc_status_type | |
2066 | ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
2067 | arelent *reloc_entry, | |
2068 | asymbol *symbol, | |
2069 | void *data ATTRIBUTE_UNUSED, | |
2070 | asection *input_section, | |
2071 | bfd *output_bfd, | |
2072 | char **error_message ATTRIBUTE_UNUSED) | |
2073 | { | |
a680de9a PB |
2074 | enum elf_ppc_reloc_type r_type; |
2075 | long insn; | |
2076 | bfd_size_type octets; | |
2077 | bfd_vma value; | |
25dbc73a AM |
2078 | |
2079 | if (output_bfd != NULL) | |
2080 | { | |
2081 | reloc_entry->address += input_section->output_offset; | |
2082 | return bfd_reloc_ok; | |
2083 | } | |
2084 | ||
a680de9a PB |
2085 | reloc_entry->addend += 0x8000; |
2086 | r_type = reloc_entry->howto->type; | |
2087 | if (r_type != R_PPC_REL16DX_HA) | |
2088 | return bfd_reloc_continue; | |
2089 | ||
2090 | value = 0; | |
2091 | if (!bfd_is_com_section (symbol->section)) | |
2092 | value = symbol->value; | |
2093 | value += (reloc_entry->addend | |
2094 | + symbol->section->output_offset | |
2095 | + symbol->section->output_section->vma); | |
2096 | value -= (reloc_entry->address | |
2097 | + input_section->output_offset | |
2098 | + input_section->output_section->vma); | |
2099 | value >>= 16; | |
2100 | ||
2101 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
2102 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
2103 | insn &= ~0x1fffc1; | |
2104 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
2105 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
2106 | return bfd_reloc_ok; | |
25dbc73a AM |
2107 | } |
2108 | ||
2109 | static bfd_reloc_status_type | |
2110 | ppc_elf_unhandled_reloc (bfd *abfd, | |
2111 | arelent *reloc_entry, | |
2112 | asymbol *symbol, | |
2113 | void *data, | |
2114 | asection *input_section, | |
2115 | bfd *output_bfd, | |
2116 | char **error_message) | |
2117 | { | |
2118 | /* If this is a relocatable link (output_bfd test tells us), just | |
2119 | call the generic function. Any adjustment will be done at final | |
2120 | link time. */ | |
2121 | if (output_bfd != NULL) | |
2122 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2123 | input_section, output_bfd, error_message); | |
2124 | ||
2125 | if (error_message != NULL) | |
2126 | { | |
2127 | static char buf[60]; | |
2128 | sprintf (buf, _("generic linker can't handle %s"), | |
2129 | reloc_entry->howto->name); | |
2130 | *error_message = buf; | |
2131 | } | |
2132 | return bfd_reloc_dangerous; | |
2133 | } | |
2134 | \f | |
2135 | /* Sections created by the linker. */ | |
2136 | ||
2137 | typedef struct elf_linker_section | |
2138 | { | |
c9a2f333 | 2139 | /* Pointer to the bfd section. */ |
25dbc73a | 2140 | asection *section; |
c9a2f333 AM |
2141 | /* Section name. */ |
2142 | const char *name; | |
2143 | /* Associated bss section name. */ | |
2144 | const char *bss_name; | |
2145 | /* Associated symbol name. */ | |
2146 | const char *sym_name; | |
046183de AM |
2147 | /* Associated symbol. */ |
2148 | struct elf_link_hash_entry *sym; | |
25dbc73a AM |
2149 | } elf_linker_section_t; |
2150 | ||
2151 | /* Linked list of allocated pointer entries. This hangs off of the | |
2152 | symbol lists, and provides allows us to return different pointers, | |
2153 | based on different addend's. */ | |
2154 | ||
2155 | typedef struct elf_linker_section_pointers | |
2156 | { | |
2157 | /* next allocated pointer for this symbol */ | |
2158 | struct elf_linker_section_pointers *next; | |
2159 | /* offset of pointer from beginning of section */ | |
2160 | bfd_vma offset; | |
2161 | /* addend used */ | |
2162 | bfd_vma addend; | |
2163 | /* which linker section this is */ | |
2164 | elf_linker_section_t *lsect; | |
25dbc73a AM |
2165 | } elf_linker_section_pointers_t; |
2166 | ||
2167 | struct ppc_elf_obj_tdata | |
2168 | { | |
2169 | struct elf_obj_tdata elf; | |
2170 | ||
2171 | /* A mapping from local symbols to offsets into the various linker | |
2172 | sections added. This is index by the symbol index. */ | |
2173 | elf_linker_section_pointers_t **linker_section_pointers; | |
016687f8 AM |
2174 | |
2175 | /* Flags used to auto-detect plt type. */ | |
2176 | unsigned int makes_plt_call : 1; | |
2177 | unsigned int has_rel16 : 1; | |
25dbc73a AM |
2178 | }; |
2179 | ||
2180 | #define ppc_elf_tdata(bfd) \ | |
2181 | ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) | |
7619e7c7 | 2182 | |
25dbc73a AM |
2183 | #define elf_local_ptr_offsets(bfd) \ |
2184 | (ppc_elf_tdata (bfd)->linker_section_pointers) | |
7619e7c7 | 2185 | |
0c8d6e5c AM |
2186 | #define is_ppc_elf(bfd) \ |
2187 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
4dfe6ac6 | 2188 | && elf_object_id (bfd) == PPC32_ELF_DATA) |
0c8d6e5c | 2189 | |
25dbc73a | 2190 | /* Override the generic function because we store some extras. */ |
7619e7c7 | 2191 | |
25dbc73a AM |
2192 | static bfd_boolean |
2193 | ppc_elf_mkobject (bfd *abfd) | |
2194 | { | |
0ffa91dd | 2195 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata), |
4dfe6ac6 | 2196 | PPC32_ELF_DATA); |
25dbc73a | 2197 | } |
7619e7c7 | 2198 | |
14b57c7c AM |
2199 | /* When defaulting arch/mach, decode apuinfo to find a better match. */ |
2200 | ||
2201 | bfd_boolean | |
2202 | _bfd_elf_ppc_set_arch (bfd *abfd) | |
2203 | { | |
2204 | unsigned long mach = 0; | |
2205 | asection *s; | |
2206 | unsigned char *contents; | |
2207 | ||
2208 | if (abfd->arch_info->bits_per_word == 32 | |
2209 | && bfd_big_endian (abfd)) | |
2210 | { | |
2211 | ||
2212 | for (s = abfd->sections; s != NULL; s = s->next) | |
2213 | if ((elf_section_data (s)->this_hdr.sh_flags & SHF_PPC_VLE) != 0) | |
2214 | break; | |
2215 | if (s != NULL) | |
2216 | mach = bfd_mach_ppc_vle; | |
2217 | } | |
2218 | ||
2219 | if (mach == 0) | |
2220 | { | |
2221 | s = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
2222 | if (s != NULL && bfd_malloc_and_get_section (abfd, s, &contents)) | |
2223 | { | |
2224 | unsigned int apuinfo_size = bfd_get_32 (abfd, contents + 4); | |
2225 | unsigned int i; | |
2226 | ||
2227 | for (i = 20; i < apuinfo_size + 20 && i + 4 <= s->size; i += 4) | |
2228 | { | |
2229 | unsigned int val = bfd_get_32 (abfd, contents + i); | |
2230 | switch (val >> 16) | |
2231 | { | |
2232 | case PPC_APUINFO_PMR: | |
2233 | case PPC_APUINFO_RFMCI: | |
2234 | if (mach == 0) | |
2235 | mach = bfd_mach_ppc_titan; | |
2236 | break; | |
2237 | ||
2238 | case PPC_APUINFO_ISEL: | |
2239 | case PPC_APUINFO_CACHELCK: | |
2240 | if (mach == bfd_mach_ppc_titan) | |
2241 | mach = bfd_mach_ppc_e500mc; | |
2242 | break; | |
2243 | ||
2244 | case PPC_APUINFO_SPE: | |
2245 | case PPC_APUINFO_EFS: | |
2246 | case PPC_APUINFO_BRLOCK: | |
2247 | if (mach != bfd_mach_ppc_vle) | |
2248 | mach = bfd_mach_ppc_e500; | |
2249 | ||
2250 | case PPC_APUINFO_VLE: | |
2251 | mach = bfd_mach_ppc_vle; | |
2252 | break; | |
2253 | ||
2254 | default: | |
2255 | mach = -1ul; | |
2256 | } | |
2257 | } | |
2258 | free (contents); | |
2259 | } | |
2260 | } | |
2261 | ||
2262 | if (mach != 0 && mach != -1ul) | |
2263 | { | |
2264 | const bfd_arch_info_type *arch; | |
2265 | ||
2266 | for (arch = abfd->arch_info->next; arch; arch = arch->next) | |
2267 | if (arch->mach == mach) | |
2268 | { | |
2269 | abfd->arch_info = arch; | |
2270 | break; | |
2271 | } | |
2272 | } | |
2273 | return TRUE; | |
2274 | } | |
2275 | ||
25dbc73a | 2276 | /* Fix bad default arch selected for a 32 bit input bfd when the |
14b57c7c | 2277 | default is 64 bit. Also select arch based on apuinfo. */ |
7619e7c7 | 2278 | |
25dbc73a AM |
2279 | static bfd_boolean |
2280 | ppc_elf_object_p (bfd *abfd) | |
2281 | { | |
14b57c7c AM |
2282 | if (!abfd->arch_info->the_default) |
2283 | return TRUE; | |
2284 | ||
2285 | if (abfd->arch_info->bits_per_word == 64) | |
25dbc73a AM |
2286 | { |
2287 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
7619e7c7 | 2288 | |
25dbc73a AM |
2289 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) |
2290 | { | |
2291 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
2292 | abfd->arch_info = abfd->arch_info->next; | |
2293 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
2294 | } | |
2295 | } | |
14b57c7c | 2296 | return _bfd_elf_ppc_set_arch (abfd); |
25dbc73a | 2297 | } |
7619e7c7 | 2298 | |
25dbc73a | 2299 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
7619e7c7 | 2300 | |
25dbc73a AM |
2301 | static bfd_boolean |
2302 | ppc_elf_set_private_flags (bfd *abfd, flagword flags) | |
2303 | { | |
2304 | BFD_ASSERT (!elf_flags_init (abfd) | |
2305 | || elf_elfheader (abfd)->e_flags == flags); | |
7619e7c7 | 2306 | |
25dbc73a AM |
2307 | elf_elfheader (abfd)->e_flags = flags; |
2308 | elf_flags_init (abfd) = TRUE; | |
2309 | return TRUE; | |
2310 | } | |
2311 | ||
25dbc73a | 2312 | /* Support for core dump NOTE sections. */ |
deaaf2f3 | 2313 | |
b34976b6 | 2314 | static bfd_boolean |
25dbc73a | 2315 | ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 2316 | { |
25dbc73a AM |
2317 | int offset; |
2318 | unsigned int size; | |
252b5132 | 2319 | |
25dbc73a AM |
2320 | switch (note->descsz) |
2321 | { | |
2322 | default: | |
2323 | return FALSE; | |
252b5132 | 2324 | |
25dbc73a AM |
2325 | case 268: /* Linux/PPC. */ |
2326 | /* pr_cursig */ | |
228e534f | 2327 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
deaaf2f3 | 2328 | |
25dbc73a | 2329 | /* pr_pid */ |
228e534f | 2330 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
9abc968f | 2331 | |
25dbc73a AM |
2332 | /* pr_reg */ |
2333 | offset = 72; | |
2334 | size = 192; | |
deaaf2f3 | 2335 | |
25dbc73a AM |
2336 | break; |
2337 | } | |
deaaf2f3 | 2338 | |
25dbc73a AM |
2339 | /* Make a ".reg/999" section. */ |
2340 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2341 | size, note->descpos + offset); | |
2342 | } | |
252b5132 | 2343 | |
25dbc73a AM |
2344 | static bfd_boolean |
2345 | ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2346 | { | |
2347 | switch (note->descsz) | |
deaaf2f3 | 2348 | { |
25dbc73a AM |
2349 | default: |
2350 | return FALSE; | |
deaaf2f3 | 2351 | |
25dbc73a | 2352 | case 128: /* Linux/PPC elf_prpsinfo. */ |
228e534f | 2353 | elf_tdata (abfd)->core->pid |
bc989cdc | 2354 | = bfd_get_32 (abfd, note->descdata + 16); |
228e534f | 2355 | elf_tdata (abfd)->core->program |
25dbc73a | 2356 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); |
228e534f | 2357 | elf_tdata (abfd)->core->command |
25dbc73a AM |
2358 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); |
2359 | } | |
9abc968f | 2360 | |
25dbc73a AM |
2361 | /* Note that for some reason, a spurious space is tacked |
2362 | onto the end of the args in some (at least one anyway) | |
2363 | implementations, so strip it off if it exists. */ | |
70bccea4 | 2364 | |
25dbc73a | 2365 | { |
228e534f | 2366 | char *command = elf_tdata (abfd)->core->command; |
25dbc73a | 2367 | int n = strlen (command); |
70bccea4 | 2368 | |
25dbc73a AM |
2369 | if (0 < n && command[n - 1] == ' ') |
2370 | command[n - 1] = '\0'; | |
2371 | } | |
deaaf2f3 | 2372 | |
25dbc73a AM |
2373 | return TRUE; |
2374 | } | |
deaaf2f3 | 2375 | |
70a38d42 | 2376 | char * |
aeb70569 AM |
2377 | elfcore_write_ppc_linux_prpsinfo32 |
2378 | (bfd *abfd, | |
2379 | char *buf, | |
2380 | int *bufsiz, | |
2381 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
70a38d42 SDJ |
2382 | { |
2383 | struct elf_external_ppc_linux_prpsinfo32 data; | |
2384 | ||
aeb70569 | 2385 | swap_ppc_linux_prpsinfo32_out (abfd, prpsinfo, &data); |
70a38d42 SDJ |
2386 | return elfcore_write_note (abfd, buf, bufsiz, |
2387 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
2388 | } | |
2389 | ||
183e98be AM |
2390 | static char * |
2391 | ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...) | |
2392 | { | |
2393 | switch (note_type) | |
2394 | { | |
2395 | default: | |
2396 | return NULL; | |
2397 | ||
2398 | case NT_PRPSINFO: | |
2399 | { | |
2400 | char data[128]; | |
2401 | va_list ap; | |
2402 | ||
2403 | va_start (ap, note_type); | |
75cd47ed | 2404 | memset (data, 0, sizeof (data)); |
183e98be AM |
2405 | strncpy (data + 32, va_arg (ap, const char *), 16); |
2406 | strncpy (data + 48, va_arg (ap, const char *), 80); | |
2407 | va_end (ap); | |
2408 | return elfcore_write_note (abfd, buf, bufsiz, | |
2409 | "CORE", note_type, data, sizeof (data)); | |
2410 | } | |
2411 | ||
2412 | case NT_PRSTATUS: | |
2413 | { | |
2414 | char data[268]; | |
2415 | va_list ap; | |
2416 | long pid; | |
2417 | int cursig; | |
2418 | const void *greg; | |
2419 | ||
2420 | va_start (ap, note_type); | |
2421 | memset (data, 0, 72); | |
2422 | pid = va_arg (ap, long); | |
2423 | bfd_put_32 (abfd, pid, data + 24); | |
2424 | cursig = va_arg (ap, int); | |
2425 | bfd_put_16 (abfd, cursig, data + 12); | |
2426 | greg = va_arg (ap, const void *); | |
2427 | memcpy (data + 72, greg, 192); | |
2428 | memset (data + 264, 0, 4); | |
2429 | va_end (ap); | |
2430 | return elfcore_write_note (abfd, buf, bufsiz, | |
2431 | "CORE", note_type, data, sizeof (data)); | |
2432 | } | |
2433 | } | |
2434 | } | |
2435 | ||
b9c361e0 | 2436 | static flagword |
68ffbac6 | 2437 | ppc_elf_lookup_section_flags (char *flag_name) |
b9c361e0 JL |
2438 | { |
2439 | ||
2440 | if (!strcmp (flag_name, "SHF_PPC_VLE")) | |
2441 | return SHF_PPC_VLE; | |
2442 | ||
2443 | return 0; | |
2444 | } | |
2445 | ||
2446 | /* Add the VLE flag if required. */ | |
2447 | ||
2448 | bfd_boolean | |
2449 | ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr) | |
2450 | { | |
2451 | if (bfd_get_mach (abfd) == bfd_mach_ppc_vle | |
2452 | && (shdr->sh_flags & SHF_EXECINSTR) != 0) | |
2453 | shdr->sh_flags |= SHF_PPC_VLE; | |
2454 | ||
2455 | return TRUE; | |
2456 | } | |
2457 | ||
25dbc73a AM |
2458 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
2459 | or (bfd_vma) -1 if it should not be included. */ | |
deaaf2f3 | 2460 | |
25dbc73a AM |
2461 | static bfd_vma |
2462 | ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
2463 | const asection *plt ATTRIBUTE_UNUSED, | |
2464 | const arelent *rel) | |
2465 | { | |
2466 | return rel->address; | |
2467 | } | |
deaaf2f3 | 2468 | |
25dbc73a | 2469 | /* Handle a PowerPC specific section when reading an object file. This |
6dc132d9 L |
2470 | is called when bfd_section_from_shdr finds a section with an unknown |
2471 | type. */ | |
deaaf2f3 | 2472 | |
25dbc73a | 2473 | static bfd_boolean |
6dc132d9 L |
2474 | ppc_elf_section_from_shdr (bfd *abfd, |
2475 | Elf_Internal_Shdr *hdr, | |
2476 | const char *name, | |
2477 | int shindex) | |
25dbc73a AM |
2478 | { |
2479 | asection *newsect; | |
2480 | flagword flags; | |
d1c6de6f | 2481 | |
6dc132d9 | 2482 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
25dbc73a | 2483 | return FALSE; |
deaaf2f3 | 2484 | |
25dbc73a AM |
2485 | newsect = hdr->bfd_section; |
2486 | flags = bfd_get_section_flags (abfd, newsect); | |
2487 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2488 | flags |= SEC_EXCLUDE; | |
9abc968f | 2489 | |
25dbc73a AM |
2490 | if (hdr->sh_type == SHT_ORDERED) |
2491 | flags |= SEC_SORT_ENTRIES; | |
d1c6de6f | 2492 | |
25dbc73a AM |
2493 | bfd_set_section_flags (abfd, newsect, flags); |
2494 | return TRUE; | |
2495 | } | |
2496 | ||
2497 | /* Set up any other section flags and such that may be necessary. */ | |
2498 | ||
2499 | static bfd_boolean | |
2500 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
2501 | Elf_Internal_Shdr *shdr, | |
2502 | asection *asect) | |
2503 | { | |
25dbc73a AM |
2504 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) |
2505 | shdr->sh_type = SHT_ORDERED; | |
2506 | ||
2507 | return TRUE; | |
2508 | } | |
2509 | ||
2510 | /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we | |
2511 | need to bump up the number of section headers. */ | |
2512 | ||
2513 | static int | |
a6b96beb AM |
2514 | ppc_elf_additional_program_headers (bfd *abfd, |
2515 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
25dbc73a AM |
2516 | { |
2517 | asection *s; | |
2518 | int ret = 0; | |
d1c6de6f | 2519 | |
25dbc73a AM |
2520 | s = bfd_get_section_by_name (abfd, ".sbss2"); |
2521 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2522 | ++ret; | |
d1c6de6f | 2523 | |
25dbc73a AM |
2524 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); |
2525 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2526 | ++ret; | |
deaaf2f3 | 2527 | |
25dbc73a AM |
2528 | return ret; |
2529 | } | |
deaaf2f3 | 2530 | |
68ffbac6 | 2531 | /* Modify the segment map for VLE executables. */ |
b9c361e0 JL |
2532 | |
2533 | bfd_boolean | |
2534 | ppc_elf_modify_segment_map (bfd *abfd, | |
2535 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
2536 | { | |
2537 | struct elf_segment_map *m, *n; | |
2538 | bfd_size_type amt; | |
2539 | unsigned int j, k; | |
2540 | bfd_boolean sect0_vle, sectj_vle; | |
2541 | ||
2542 | /* At this point in the link, output sections have already been sorted by | |
2543 | LMA and assigned to segments. All that is left to do is to ensure | |
2544 | there is no mixing of VLE & non-VLE sections in a text segment. | |
2545 | If we find that case, we split the segment. | |
2546 | We maintain the original output section order. */ | |
2547 | ||
12bd6957 | 2548 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
b9c361e0 JL |
2549 | { |
2550 | if (m->count == 0) | |
2551 | continue; | |
2552 | ||
94caa966 | 2553 | sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0; |
b9c361e0 JL |
2554 | for (j = 1; j < m->count; ++j) |
2555 | { | |
94caa966 AM |
2556 | sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0; |
2557 | ||
2558 | if (sectj_vle != sect0_vle) | |
b9c361e0 JL |
2559 | break; |
2560 | } | |
2561 | if (j >= m->count) | |
2562 | continue; | |
2563 | ||
b9c361e0 JL |
2564 | /* sections 0..j-1 stay in this (current) segment, |
2565 | the remainder are put in a new segment. | |
2566 | The scan resumes with the new segment. */ | |
2567 | ||
2568 | /* Fix the new segment. */ | |
2569 | amt = sizeof (struct elf_segment_map); | |
2570 | amt += (m->count - j - 1) * sizeof (asection *); | |
2571 | n = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
2572 | if (n == NULL) | |
2573 | return FALSE; | |
2574 | ||
2575 | n->p_type = PT_LOAD; | |
2576 | n->p_flags = PF_X | PF_R; | |
2577 | if (sectj_vle) | |
2578 | n->p_flags |= PF_PPC_VLE; | |
2579 | n->count = m->count - j; | |
2580 | for (k = 0; k < n->count; ++k) | |
2581 | { | |
2582 | n->sections[k] = m->sections[j+k]; | |
2583 | m->sections[j+k] = NULL; | |
2584 | } | |
2585 | n->next = m->next; | |
2586 | m->next = n; | |
2587 | ||
2588 | /* Fix the current segment */ | |
2589 | m->count = j; | |
2590 | } | |
2591 | ||
2592 | return TRUE; | |
2593 | } | |
2594 | ||
25dbc73a AM |
2595 | /* Add extra PPC sections -- Note, for now, make .sbss2 and |
2596 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
2597 | that the linker doesn't crater when trying to make more than | |
2598 | 2 sections. */ | |
e656e369 | 2599 | |
b35d266b | 2600 | static const struct bfd_elf_special_section ppc_elf_special_sections[] = |
7f4d3958 | 2601 | { |
14b57c7c AM |
2602 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2603 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2604 | { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2605 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2606 | { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2607 | { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, | |
2608 | { STRING_COMMA_LEN (APUINFO_SECTION_NAME), 0, SHT_NOTE, 0 }, | |
2609 | { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2610 | { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2611 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2612 | }; |
2613 | ||
551b43fd AM |
2614 | /* This is what we want for new plt/got. */ |
2615 | static struct bfd_elf_special_section ppc_alt_plt = | |
0112cd26 | 2616 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; |
551b43fd AM |
2617 | |
2618 | static const struct bfd_elf_special_section * | |
2619 | ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
7f4d3958 | 2620 | { |
b35d266b | 2621 | const struct bfd_elf_special_section *ssect; |
551b43fd AM |
2622 | |
2623 | /* See if this is one of the special sections. */ | |
2624 | if (sec->name == NULL) | |
2625 | return NULL; | |
2626 | ||
2627 | ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, | |
2628 | sec->use_rela_p); | |
2629 | if (ssect != NULL) | |
2630 | { | |
2631 | if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) | |
2632 | ssect = &ppc_alt_plt; | |
2633 | return ssect; | |
2634 | } | |
2635 | ||
2636 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
2637 | } | |
25dbc73a AM |
2638 | \f |
2639 | /* Very simple linked list structure for recording apuinfo values. */ | |
2640 | typedef struct apuinfo_list | |
2641 | { | |
2642 | struct apuinfo_list *next; | |
2643 | unsigned long value; | |
2644 | } | |
2645 | apuinfo_list; | |
e656e369 | 2646 | |
25dbc73a | 2647 | static apuinfo_list *head; |
f2faa800 | 2648 | static bfd_boolean apuinfo_set; |
deaaf2f3 | 2649 | |
25dbc73a AM |
2650 | static void |
2651 | apuinfo_list_init (void) | |
2652 | { | |
2653 | head = NULL; | |
f2faa800 | 2654 | apuinfo_set = FALSE; |
25dbc73a | 2655 | } |
9abc968f | 2656 | |
25dbc73a AM |
2657 | static void |
2658 | apuinfo_list_add (unsigned long value) | |
2659 | { | |
2660 | apuinfo_list *entry = head; | |
deaaf2f3 | 2661 | |
25dbc73a AM |
2662 | while (entry != NULL) |
2663 | { | |
2664 | if (entry->value == value) | |
2665 | return; | |
2666 | entry = entry->next; | |
2667 | } | |
b4a38de6 | 2668 | |
25dbc73a AM |
2669 | entry = bfd_malloc (sizeof (* entry)); |
2670 | if (entry == NULL) | |
2671 | return; | |
e656e369 | 2672 | |
25dbc73a AM |
2673 | entry->value = value; |
2674 | entry->next = head; | |
2675 | head = entry; | |
2676 | } | |
9abc968f | 2677 | |
25dbc73a AM |
2678 | static unsigned |
2679 | apuinfo_list_length (void) | |
2680 | { | |
2681 | apuinfo_list *entry; | |
2682 | unsigned long count; | |
9abc968f | 2683 | |
25dbc73a AM |
2684 | for (entry = head, count = 0; |
2685 | entry; | |
2686 | entry = entry->next) | |
2687 | ++ count; | |
e656e369 | 2688 | |
25dbc73a AM |
2689 | return count; |
2690 | } | |
eea6121a | 2691 | |
25dbc73a AM |
2692 | static inline unsigned long |
2693 | apuinfo_list_element (unsigned long number) | |
2694 | { | |
2695 | apuinfo_list * entry; | |
e656e369 | 2696 | |
25dbc73a AM |
2697 | for (entry = head; |
2698 | entry && number --; | |
2699 | entry = entry->next) | |
2700 | ; | |
252b5132 | 2701 | |
25dbc73a AM |
2702 | return entry ? entry->value : 0; |
2703 | } | |
2704 | ||
2705 | static void | |
2706 | apuinfo_list_finish (void) | |
2707 | { | |
2708 | apuinfo_list *entry; | |
2709 | ||
2710 | for (entry = head; entry;) | |
252b5132 | 2711 | { |
25dbc73a AM |
2712 | apuinfo_list *next = entry->next; |
2713 | free (entry); | |
2714 | entry = next; | |
2715 | } | |
9abc968f | 2716 | |
25dbc73a AM |
2717 | head = NULL; |
2718 | } | |
9abc968f | 2719 | |
25dbc73a AM |
2720 | /* Scan the input BFDs and create a linked list of |
2721 | the APUinfo values that will need to be emitted. */ | |
9abc968f | 2722 | |
25dbc73a AM |
2723 | static void |
2724 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
2725 | { | |
2726 | bfd *ibfd; | |
2727 | asection *asec; | |
deddc40b NS |
2728 | char *buffer = NULL; |
2729 | bfd_size_type largest_input_size = 0; | |
25dbc73a | 2730 | unsigned i; |
25dbc73a AM |
2731 | unsigned long length; |
2732 | const char *error_message = NULL; | |
9abc968f | 2733 | |
25dbc73a AM |
2734 | if (link_info == NULL) |
2735 | return; | |
9abc968f | 2736 | |
25dbc73a | 2737 | apuinfo_list_init (); |
252b5132 | 2738 | |
25dbc73a | 2739 | /* Read in the input sections contents. */ |
c72f2fb2 | 2740 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link.next) |
252b5132 | 2741 | { |
25dbc73a | 2742 | unsigned long datum; |
252b5132 | 2743 | |
25dbc73a AM |
2744 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2745 | if (asec == NULL) | |
2746 | continue; | |
252b5132 | 2747 | |
deddc40b | 2748 | error_message = _("corrupt %s section in %B"); |
25dbc73a | 2749 | length = asec->size; |
deddc40b NS |
2750 | if (length < 20) |
2751 | goto fail; | |
2752 | ||
f2faa800 | 2753 | apuinfo_set = TRUE; |
deddc40b | 2754 | if (largest_input_size < asec->size) |
25dbc73a | 2755 | { |
deddc40b NS |
2756 | if (buffer) |
2757 | free (buffer); | |
2758 | largest_input_size = asec->size; | |
2759 | buffer = bfd_malloc (largest_input_size); | |
2760 | if (!buffer) | |
2761 | return; | |
25dbc73a | 2762 | } |
5b914448 | 2763 | |
25dbc73a | 2764 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
deddc40b | 2765 | || (bfd_bread (buffer, length, ibfd) != length)) |
25dbc73a AM |
2766 | { |
2767 | error_message = _("unable to read in %s section from %B"); | |
2768 | goto fail; | |
2769 | } | |
252b5132 | 2770 | |
25dbc73a AM |
2771 | /* Verify the contents of the header. Note - we have to |
2772 | extract the values this way in order to allow for a | |
2773 | host whose endian-ness is different from the target. */ | |
deddc40b | 2774 | datum = bfd_get_32 (ibfd, buffer); |
25dbc73a AM |
2775 | if (datum != sizeof APUINFO_LABEL) |
2776 | goto fail; | |
252b5132 | 2777 | |
deddc40b | 2778 | datum = bfd_get_32 (ibfd, buffer + 8); |
25dbc73a AM |
2779 | if (datum != 0x2) |
2780 | goto fail; | |
252b5132 | 2781 | |
deddc40b | 2782 | if (strcmp (buffer + 12, APUINFO_LABEL) != 0) |
25dbc73a | 2783 | goto fail; |
252b5132 | 2784 | |
25dbc73a | 2785 | /* Get the number of bytes used for apuinfo entries. */ |
deddc40b | 2786 | datum = bfd_get_32 (ibfd, buffer + 4); |
25dbc73a AM |
2787 | if (datum + 20 != length) |
2788 | goto fail; | |
2789 | ||
25dbc73a AM |
2790 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ |
2791 | for (i = 0; i < datum; i += 4) | |
deddc40b | 2792 | apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i)); |
252b5132 RH |
2793 | } |
2794 | ||
25dbc73a | 2795 | error_message = NULL; |
252b5132 | 2796 | |
f2faa800 | 2797 | if (apuinfo_set) |
deddc40b | 2798 | { |
f2faa800 NS |
2799 | /* Compute the size of the output section. */ |
2800 | unsigned num_entries = apuinfo_list_length (); | |
5b914448 | 2801 | |
deddc40b NS |
2802 | /* Set the output section size, if it exists. */ |
2803 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
f2faa800 | 2804 | |
deddc40b NS |
2805 | if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4)) |
2806 | { | |
2807 | ibfd = abfd; | |
2808 | error_message = _("warning: unable to set size of %s section in %B"); | |
2809 | } | |
2810 | } | |
25dbc73a AM |
2811 | |
2812 | fail: | |
deddc40b NS |
2813 | if (buffer) |
2814 | free (buffer); | |
25dbc73a AM |
2815 | |
2816 | if (error_message) | |
2817 | (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME); | |
2818 | } | |
252b5132 | 2819 | |
25dbc73a AM |
2820 | /* Prevent the output section from accumulating the input sections' |
2821 | contents. We have already stored this in our linked list structure. */ | |
252b5132 | 2822 | |
25dbc73a AM |
2823 | static bfd_boolean |
2824 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
c7b8f16e | 2825 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
25dbc73a AM |
2826 | asection *asec, |
2827 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
2828 | { | |
f2faa800 | 2829 | return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; |
252b5132 RH |
2830 | } |
2831 | ||
25dbc73a AM |
2832 | /* Finally we can generate the output section. */ |
2833 | ||
2834 | static void | |
2835 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
7619e7c7 | 2836 | { |
25dbc73a AM |
2837 | bfd_byte *buffer; |
2838 | asection *asec; | |
2839 | unsigned i; | |
2840 | unsigned num_entries; | |
2841 | bfd_size_type length; | |
7619e7c7 | 2842 | |
25dbc73a AM |
2843 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2844 | if (asec == NULL) | |
2845 | return; | |
2846 | ||
f2faa800 | 2847 | if (!apuinfo_set) |
25dbc73a AM |
2848 | return; |
2849 | ||
2850 | length = asec->size; | |
2851 | if (length < 20) | |
2852 | return; | |
2853 | ||
2854 | buffer = bfd_malloc (length); | |
2855 | if (buffer == NULL) | |
7619e7c7 | 2856 | { |
25dbc73a AM |
2857 | (*_bfd_error_handler) |
2858 | (_("failed to allocate space for new APUinfo section.")); | |
2859 | return; | |
7619e7c7 | 2860 | } |
7619e7c7 | 2861 | |
25dbc73a AM |
2862 | /* Create the apuinfo header. */ |
2863 | num_entries = apuinfo_list_length (); | |
2864 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
2865 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); | |
2866 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
2867 | strcpy ((char *) buffer + 12, APUINFO_LABEL); | |
feee612b | 2868 | |
25dbc73a AM |
2869 | length = 20; |
2870 | for (i = 0; i < num_entries; i++) | |
feee612b | 2871 | { |
25dbc73a AM |
2872 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); |
2873 | length += 4; | |
feee612b | 2874 | } |
feee612b | 2875 | |
25dbc73a AM |
2876 | if (length != asec->size) |
2877 | (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); | |
252b5132 | 2878 | |
25dbc73a AM |
2879 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
2880 | (*_bfd_error_handler) (_("failed to install new APUinfo section.")); | |
252b5132 | 2881 | |
25dbc73a AM |
2882 | free (buffer); |
2883 | ||
2884 | apuinfo_list_finish (); | |
252b5132 | 2885 | } |
25dbc73a | 2886 | \f |
7382d32a | 2887 | static bfd_boolean |
c6dd29ce | 2888 | is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) |
7382d32a | 2889 | { |
c6dd29ce | 2890 | bfd_byte buf[GLINK_ENTRY_SIZE]; |
7382d32a | 2891 | |
c6dd29ce | 2892 | if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE)) |
7382d32a AM |
2893 | return FALSE; |
2894 | ||
c6dd29ce AM |
2895 | return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11 |
2896 | && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 | |
2897 | && bfd_get_32 (abfd, buf + 8) == MTCTR_11 | |
2898 | && bfd_get_32 (abfd, buf + 12) == BCTR); | |
7382d32a AM |
2899 | } |
2900 | ||
468392fb AM |
2901 | static bfd_boolean |
2902 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
2903 | { | |
2904 | bfd_vma vma = *(bfd_vma *) ptr; | |
2905 | return ((section->flags & SEC_ALLOC) != 0 | |
2906 | && section->vma <= vma | |
2907 | && vma < section->vma + section->size); | |
2908 | } | |
2909 | ||
2910 | static long | |
2911 | ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, | |
2912 | long dynsymcount, asymbol **dynsyms, | |
2913 | asymbol **ret) | |
2914 | { | |
2915 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
2916 | asection *plt, *relplt, *dynamic, *glink; | |
2917 | bfd_vma glink_vma = 0; | |
2918 | bfd_vma resolv_vma = 0; | |
2919 | bfd_vma stub_vma; | |
2920 | asymbol *s; | |
2921 | arelent *p; | |
2922 | long count, i; | |
2923 | size_t size; | |
2924 | char *names; | |
2925 | bfd_byte buf[4]; | |
2926 | ||
2927 | *ret = NULL; | |
2928 | ||
2929 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) | |
2930 | return 0; | |
2931 | ||
2932 | if (dynsymcount <= 0) | |
2933 | return 0; | |
2934 | ||
2935 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
2936 | if (relplt == NULL) | |
2937 | return 0; | |
2938 | ||
2939 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
2940 | if (plt == NULL) | |
2941 | return 0; | |
2942 | ||
2943 | /* Call common code to handle old-style executable PLTs. */ | |
2944 | if (elf_section_flags (plt) & SHF_EXECINSTR) | |
2945 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
2946 | dynsymcount, dynsyms, ret); | |
2947 | ||
2948 | /* If this object was prelinked, the prelinker stored the address | |
2949 | of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ | |
2950 | dynamic = bfd_get_section_by_name (abfd, ".dynamic"); | |
2951 | if (dynamic != NULL) | |
2952 | { | |
2953 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
2954 | size_t extdynsize; | |
2955 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
2956 | ||
2957 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
2958 | return -1; | |
2959 | ||
2960 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
2961 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
2962 | ||
2963 | extdyn = dynbuf; | |
2964 | extdynend = extdyn + dynamic->size; | |
2965 | for (; extdyn < extdynend; extdyn += extdynsize) | |
2966 | { | |
2967 | Elf_Internal_Dyn dyn; | |
2968 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
2969 | ||
2970 | if (dyn.d_tag == DT_NULL) | |
2971 | break; | |
2972 | ||
2973 | if (dyn.d_tag == DT_PPC_GOT) | |
2974 | { | |
2975 | unsigned int g_o_t = dyn.d_un.d_val; | |
2976 | asection *got = bfd_get_section_by_name (abfd, ".got"); | |
2977 | if (got != NULL | |
2978 | && bfd_get_section_contents (abfd, got, buf, | |
2979 | g_o_t - got->vma + 4, 4)) | |
2980 | glink_vma = bfd_get_32 (abfd, buf); | |
2981 | break; | |
2982 | } | |
2983 | } | |
2984 | free (dynbuf); | |
2985 | } | |
2986 | ||
2987 | /* Otherwise we read the first plt entry. */ | |
2988 | if (glink_vma == 0) | |
2989 | { | |
2990 | if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) | |
2991 | glink_vma = bfd_get_32 (abfd, buf); | |
2992 | } | |
2993 | ||
2994 | if (glink_vma == 0) | |
2995 | return 0; | |
2996 | ||
2997 | /* The .glink section usually does not survive the final | |
2998 | link; search for the section (usually .text) where the | |
2999 | glink stubs now reside. */ | |
3000 | glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); | |
3001 | if (glink == NULL) | |
3002 | return 0; | |
3003 | ||
3004 | /* Determine glink PLT resolver by reading the relative branch | |
3005 | from the first glink stub. */ | |
3006 | if (bfd_get_section_contents (abfd, glink, buf, | |
3007 | glink_vma - glink->vma, 4)) | |
3008 | { | |
3009 | unsigned int insn = bfd_get_32 (abfd, buf); | |
3010 | ||
3011 | /* The first glink stub may either branch to the resolver ... */ | |
3012 | insn ^= B; | |
3013 | if ((insn & ~0x3fffffc) == 0) | |
3014 | resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; | |
3015 | ||
3016 | /* ... or fall through a bunch of NOPs. */ | |
3017 | else if ((insn ^ B ^ NOP) == 0) | |
3018 | for (i = 4; | |
3019 | bfd_get_section_contents (abfd, glink, buf, | |
3020 | glink_vma - glink->vma + i, 4); | |
3021 | i += 4) | |
3022 | if (bfd_get_32 (abfd, buf) != NOP) | |
3023 | { | |
3024 | resolv_vma = glink_vma + i; | |
3025 | break; | |
3026 | } | |
3027 | } | |
3028 | ||
7382d32a | 3029 | count = relplt->size / sizeof (Elf32_External_Rela); |
7382d32a AM |
3030 | /* If the stubs are those for -shared/-pie then we might have |
3031 | multiple stubs for each plt entry. If that is the case then | |
3032 | there is no way to associate stubs with their plt entries short | |
3033 | of figuring out the GOT pointer value used in the stub. */ | |
c6dd29ce AM |
3034 | if (!is_nonpic_glink_stub (abfd, glink, |
3035 | glink_vma - GLINK_ENTRY_SIZE - glink->vma)) | |
7382d32a AM |
3036 | return 0; |
3037 | ||
468392fb AM |
3038 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
3039 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) | |
3040 | return -1; | |
3041 | ||
468392fb AM |
3042 | size = count * sizeof (asymbol); |
3043 | p = relplt->relocation; | |
3044 | for (i = 0; i < count; i++, p++) | |
e054468f AM |
3045 | { |
3046 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
3047 | if (p->addend != 0) | |
3048 | size += sizeof ("+0x") - 1 + 8; | |
3049 | } | |
468392fb AM |
3050 | |
3051 | size += sizeof (asymbol) + sizeof ("__glink"); | |
3052 | ||
3053 | if (resolv_vma) | |
3054 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
3055 | ||
3056 | s = *ret = bfd_malloc (size); | |
3057 | if (s == NULL) | |
3058 | return -1; | |
3059 | ||
1079403c | 3060 | stub_vma = glink_vma; |
468392fb | 3061 | names = (char *) (s + count + 1 + (resolv_vma != 0)); |
1079403c AM |
3062 | p = relplt->relocation + count - 1; |
3063 | for (i = 0; i < count; i++) | |
468392fb AM |
3064 | { |
3065 | size_t len; | |
3066 | ||
3067 | *s = **p->sym_ptr_ptr; | |
3068 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
3069 | we are defining a symbol, ensure one of them is set. */ | |
3070 | if ((s->flags & BSF_LOCAL) == 0) | |
3071 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 3072 | s->flags |= BSF_SYNTHETIC; |
468392fb | 3073 | s->section = glink; |
1079403c AM |
3074 | stub_vma -= 16; |
3075 | if (strcmp ((*p->sym_ptr_ptr)->name, "__tls_get_addr_opt") == 0) | |
3076 | stub_vma -= 32; | |
468392fb AM |
3077 | s->value = stub_vma - glink->vma; |
3078 | s->name = names; | |
3079 | s->udata.p = NULL; | |
3080 | len = strlen ((*p->sym_ptr_ptr)->name); | |
3081 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
3082 | names += len; | |
e054468f AM |
3083 | if (p->addend != 0) |
3084 | { | |
3085 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
3086 | names += sizeof ("+0x") - 1; | |
3087 | bfd_sprintf_vma (abfd, names, p->addend); | |
3088 | names += strlen (names); | |
3089 | } | |
468392fb AM |
3090 | memcpy (names, "@plt", sizeof ("@plt")); |
3091 | names += sizeof ("@plt"); | |
3092 | ++s; | |
1079403c | 3093 | --p; |
468392fb AM |
3094 | } |
3095 | ||
3096 | /* Add a symbol at the start of the glink branch table. */ | |
86a4952b | 3097 | memset (s, 0, sizeof *s); |
468392fb | 3098 | s->the_bfd = abfd; |
6ba2a415 | 3099 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3100 | s->section = glink; |
3101 | s->value = glink_vma - glink->vma; | |
3102 | s->name = names; | |
3103 | memcpy (names, "__glink", sizeof ("__glink")); | |
3104 | names += sizeof ("__glink"); | |
3105 | s++; | |
3106 | count++; | |
3107 | ||
3108 | if (resolv_vma) | |
3109 | { | |
3110 | /* Add a symbol for the glink PLT resolver. */ | |
86a4952b | 3111 | memset (s, 0, sizeof *s); |
468392fb | 3112 | s->the_bfd = abfd; |
6ba2a415 | 3113 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3114 | s->section = glink; |
3115 | s->value = resolv_vma - glink->vma; | |
3116 | s->name = names; | |
3117 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
3118 | names += sizeof ("__glink_PLTresolve"); | |
3119 | s++; | |
3120 | count++; | |
3121 | } | |
3122 | ||
3123 | return count; | |
3124 | } | |
3125 | \f | |
25dbc73a AM |
3126 | /* The following functions are specific to the ELF linker, while |
3127 | functions above are used generally. They appear in this file more | |
3128 | or less in the order in which they are called. eg. | |
3129 | ppc_elf_check_relocs is called early in the link process, | |
3130 | ppc_elf_finish_dynamic_sections is one of the last functions | |
3131 | called. */ | |
252b5132 | 3132 | |
a6aa5195 | 3133 | /* Track PLT entries needed for a given symbol. We might need more |
a877a2b6 | 3134 | than one glink entry per symbol when generating a pic binary. */ |
a6aa5195 AM |
3135 | struct plt_entry |
3136 | { | |
3137 | struct plt_entry *next; | |
3138 | ||
3139 | /* -fPIC uses multiple GOT sections, one per file, called ".got2". | |
3140 | This field stores the offset into .got2 used to initialise the | |
a877a2b6 AM |
3141 | GOT pointer reg. It will always be at least 32768. (Current |
3142 | gcc always uses an offset of 32768, but ld -r will pack .got2 | |
3143 | sections together resulting in larger offsets). */ | |
a6aa5195 AM |
3144 | bfd_vma addend; |
3145 | ||
3146 | /* The .got2 section. */ | |
3147 | asection *sec; | |
3148 | ||
3149 | /* PLT refcount or offset. */ | |
3150 | union | |
3151 | { | |
3152 | bfd_signed_vma refcount; | |
3153 | bfd_vma offset; | |
3154 | } plt; | |
3155 | ||
3156 | /* .glink stub offset. */ | |
3157 | bfd_vma glink_offset; | |
3158 | }; | |
3159 | ||
1d483afe | 3160 | /* Of those relocs that might be copied as dynamic relocs, this function |
25dbc73a AM |
3161 | selects those that must be copied when linking a shared library, |
3162 | even when the symbol is local. */ | |
252b5132 | 3163 | |
1d483afe AM |
3164 | static int |
3165 | must_be_dyn_reloc (struct bfd_link_info *info, | |
3166 | enum elf_ppc_reloc_type r_type) | |
3167 | { | |
3168 | switch (r_type) | |
3169 | { | |
3170 | default: | |
3171 | return 1; | |
3172 | ||
3173 | case R_PPC_REL24: | |
3174 | case R_PPC_REL14: | |
3175 | case R_PPC_REL14_BRTAKEN: | |
3176 | case R_PPC_REL14_BRNTAKEN: | |
3177 | case R_PPC_REL32: | |
3178 | return 0; | |
3179 | ||
3180 | case R_PPC_TPREL32: | |
3181 | case R_PPC_TPREL16: | |
3182 | case R_PPC_TPREL16_LO: | |
3183 | case R_PPC_TPREL16_HI: | |
3184 | case R_PPC_TPREL16_HA: | |
0e1862bb | 3185 | return !bfd_link_executable (info); |
1d483afe AM |
3186 | } |
3187 | } | |
252b5132 | 3188 | |
25dbc73a AM |
3189 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3190 | copying dynamic variables from a shared lib into an app's dynbss | |
3191 | section, and instead use a dynamic relocation to point into the | |
3192 | shared lib. */ | |
3193 | #define ELIMINATE_COPY_RELOCS 1 | |
252b5132 | 3194 | |
f95f8542 AM |
3195 | /* Used to track dynamic relocations for local symbols. */ |
3196 | struct ppc_dyn_relocs | |
3197 | { | |
3198 | struct ppc_dyn_relocs *next; | |
3199 | ||
3200 | /* The input section of the reloc. */ | |
3201 | asection *sec; | |
3202 | ||
3203 | /* Total number of relocs copied for the input section. */ | |
3204 | unsigned int count : 31; | |
3205 | ||
3206 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
3207 | unsigned int ifunc : 1; | |
3208 | }; | |
3209 | ||
25dbc73a | 3210 | /* PPC ELF linker hash entry. */ |
252b5132 | 3211 | |
25dbc73a AM |
3212 | struct ppc_elf_link_hash_entry |
3213 | { | |
3214 | struct elf_link_hash_entry elf; | |
252b5132 | 3215 | |
25dbc73a AM |
3216 | /* If this symbol is used in the linker created sections, the processor |
3217 | specific backend uses this field to map the field into the offset | |
3218 | from the beginning of the section. */ | |
3219 | elf_linker_section_pointers_t *linker_section_pointer; | |
252b5132 | 3220 | |
25dbc73a | 3221 | /* Track dynamic relocs copied for this symbol. */ |
6061a67d | 3222 | struct elf_dyn_relocs *dyn_relocs; |
252b5132 | 3223 | |
25dbc73a AM |
3224 | /* Contexts in which symbol is used in the GOT (or TOC). |
3225 | TLS_GD .. TLS_TLS bits are or'd into the mask as the | |
3226 | corresponding relocs are encountered during check_relocs. | |
3227 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3228 | indicate the corresponding GOT entry type is not needed. */ | |
3229 | #define TLS_GD 1 /* GD reloc. */ | |
3230 | #define TLS_LD 2 /* LD reloc. */ | |
3231 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3232 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3233 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3234 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
e054468f | 3235 | #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */ |
25dbc73a | 3236 | char tls_mask; |
4dc4a9a5 DJ |
3237 | |
3238 | /* Nonzero if we have seen a small data relocation referring to this | |
3239 | symbol. */ | |
d3e454b9 AM |
3240 | unsigned char has_sda_refs : 1; |
3241 | ||
3242 | /* Flag use of given relocations. */ | |
3243 | unsigned char has_addr16_ha : 1; | |
3244 | unsigned char has_addr16_lo : 1; | |
25dbc73a | 3245 | }; |
252b5132 | 3246 | |
25dbc73a AM |
3247 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) |
3248 | ||
3249 | /* PPC ELF linker hash table. */ | |
3250 | ||
3251 | struct ppc_elf_link_hash_table | |
3252 | { | |
3253 | struct elf_link_hash_table elf; | |
3254 | ||
5446cbdf AM |
3255 | /* Various options passed from the linker. */ |
3256 | struct ppc_elf_params *params; | |
3257 | ||
25dbc73a AM |
3258 | /* Short-cuts to get to dynamic linker sections. */ |
3259 | asection *got; | |
3260 | asection *relgot; | |
d7128ce4 | 3261 | asection *glink; |
25dbc73a AM |
3262 | asection *plt; |
3263 | asection *relplt; | |
e054468f AM |
3264 | asection *iplt; |
3265 | asection *reliplt; | |
25dbc73a AM |
3266 | asection *dynbss; |
3267 | asection *relbss; | |
3268 | asection *dynsbss; | |
3269 | asection *relsbss; | |
c9a2f333 | 3270 | elf_linker_section_t sdata[2]; |
25dbc73a | 3271 | asection *sbss; |
6177242a | 3272 | asection *glink_eh_frame; |
25dbc73a | 3273 | |
016687f8 AM |
3274 | /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ |
3275 | asection *srelplt2; | |
3276 | ||
3277 | /* The .got.plt section (VxWorks only)*/ | |
3278 | asection *sgotplt; | |
3279 | ||
1d483afe | 3280 | /* Shortcut to __tls_get_addr. */ |
25dbc73a | 3281 | struct elf_link_hash_entry *tls_get_addr; |
252b5132 | 3282 | |
016687f8 AM |
3283 | /* The bfd that forced an old-style PLT. */ |
3284 | bfd *old_bfd; | |
5b914448 | 3285 | |
25dbc73a AM |
3286 | /* TLS local dynamic got entry handling. */ |
3287 | union { | |
3288 | bfd_signed_vma refcount; | |
3289 | bfd_vma offset; | |
3290 | } tlsld_got; | |
252b5132 | 3291 | |
c6dd29ce | 3292 | /* Offset of branch table to PltResolve function in glink. */ |
d7128ce4 AM |
3293 | bfd_vma glink_pltresolve; |
3294 | ||
3b36f7e6 AM |
3295 | /* Size of reserved GOT entries. */ |
3296 | unsigned int got_header_size; | |
3297 | /* Non-zero if allocating the header left a gap. */ | |
3298 | unsigned int got_gap; | |
3299 | ||
4a3dc543 RS |
3300 | /* The type of PLT we have chosen to use. */ |
3301 | enum ppc_elf_plt_type plt_type; | |
3302 | ||
9d8504b1 | 3303 | /* True if the target system is VxWorks. */ |
016687f8 | 3304 | unsigned int is_vxworks:1; |
9d8504b1 PB |
3305 | |
3306 | /* The size of PLT entries. */ | |
3307 | int plt_entry_size; | |
3308 | /* The distance between adjacent PLT slots. */ | |
3309 | int plt_slot_size; | |
3310 | /* The size of the first PLT entry. */ | |
3311 | int plt_initial_entry_size; | |
016687f8 | 3312 | |
87d72d41 AM |
3313 | /* Small local sym cache. */ |
3314 | struct sym_cache sym_cache; | |
25dbc73a | 3315 | }; |
252b5132 | 3316 | |
94caa966 AM |
3317 | /* Rename some of the generic section flags to better document how they |
3318 | are used for ppc32. The flags are only valid for ppc32 elf objects. */ | |
3319 | ||
3320 | /* Nonzero if this section has TLS related relocations. */ | |
3321 | #define has_tls_reloc sec_flg0 | |
3322 | ||
3323 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
3324 | #define has_tls_get_addr_call sec_flg1 | |
3325 | ||
25dbc73a | 3326 | /* Get the PPC ELF linker hash table from a link_info structure. */ |
252b5132 | 3327 | |
25dbc73a | 3328 | #define ppc_elf_hash_table(p) \ |
4dfe6ac6 NC |
3329 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
3330 | == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 3331 | |
25dbc73a | 3332 | /* Create an entry in a PPC ELF linker hash table. */ |
252b5132 | 3333 | |
25dbc73a AM |
3334 | static struct bfd_hash_entry * |
3335 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3336 | struct bfd_hash_table *table, | |
3337 | const char *string) | |
252b5132 | 3338 | { |
25dbc73a AM |
3339 | /* Allocate the structure if it has not already been allocated by a |
3340 | subclass. */ | |
3341 | if (entry == NULL) | |
3342 | { | |
3343 | entry = bfd_hash_allocate (table, | |
3344 | sizeof (struct ppc_elf_link_hash_entry)); | |
3345 | if (entry == NULL) | |
3346 | return entry; | |
3347 | } | |
252b5132 | 3348 | |
25dbc73a AM |
3349 | /* Call the allocation method of the superclass. */ |
3350 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3351 | if (entry != NULL) | |
3352 | { | |
3353 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; | |
3354 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
3355 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
5240d94d | 3356 | ppc_elf_hash_entry (entry)->has_sda_refs = 0; |
25dbc73a | 3357 | } |
252b5132 | 3358 | |
25dbc73a | 3359 | return entry; |
252b5132 | 3360 | } |
3dab13f6 | 3361 | |
25dbc73a | 3362 | /* Create a PPC ELF linker hash table. */ |
3dab13f6 | 3363 | |
25dbc73a AM |
3364 | static struct bfd_link_hash_table * |
3365 | ppc_elf_link_hash_table_create (bfd *abfd) | |
3dab13f6 | 3366 | { |
25dbc73a | 3367 | struct ppc_elf_link_hash_table *ret; |
76e7a751 AM |
3368 | static struct ppc_elf_params default_params |
3369 | = { PLT_OLD, 0, 1, 0, 0, 12, 0, 0 }; | |
3dab13f6 | 3370 | |
25dbc73a AM |
3371 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
3372 | if (ret == NULL) | |
3373 | return NULL; | |
3dab13f6 | 3374 | |
66eb6687 AM |
3375 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, |
3376 | ppc_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
3377 | sizeof (struct ppc_elf_link_hash_entry), |
3378 | PPC32_ELF_DATA)) | |
3dab13f6 | 3379 | { |
25dbc73a AM |
3380 | free (ret); |
3381 | return NULL; | |
3382 | } | |
58111eb7 | 3383 | |
a6aa5195 AM |
3384 | ret->elf.init_plt_refcount.refcount = 0; |
3385 | ret->elf.init_plt_refcount.glist = NULL; | |
3386 | ret->elf.init_plt_offset.offset = 0; | |
3387 | ret->elf.init_plt_offset.glist = NULL; | |
3388 | ||
db434ba0 AM |
3389 | ret->params = &default_params; |
3390 | ||
c9a2f333 AM |
3391 | ret->sdata[0].name = ".sdata"; |
3392 | ret->sdata[0].sym_name = "_SDA_BASE_"; | |
3393 | ret->sdata[0].bss_name = ".sbss"; | |
3394 | ||
3395 | ret->sdata[1].name = ".sdata2"; | |
3396 | ret->sdata[1].sym_name = "_SDA2_BASE_"; | |
3397 | ret->sdata[1].bss_name = ".sbss2"; | |
3398 | ||
9d8504b1 PB |
3399 | ret->plt_entry_size = 12; |
3400 | ret->plt_slot_size = 8; | |
3401 | ret->plt_initial_entry_size = 72; | |
9d8504b1 | 3402 | |
25dbc73a AM |
3403 | return &ret->elf.root; |
3404 | } | |
3dab13f6 | 3405 | |
5446cbdf AM |
3406 | /* Hook linker params into hash table. */ |
3407 | ||
3408 | void | |
3409 | ppc_elf_link_params (struct bfd_link_info *info, struct ppc_elf_params *params) | |
3410 | { | |
3411 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3412 | ||
3413 | if (htab) | |
3414 | htab->params = params; | |
76e7a751 | 3415 | params->pagesize_p2 = bfd_log2 (params->pagesize); |
5446cbdf AM |
3416 | } |
3417 | ||
9d8504b1 | 3418 | /* Create .got and the related sections. */ |
3dab13f6 | 3419 | |
25dbc73a AM |
3420 | static bfd_boolean |
3421 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) | |
3422 | { | |
3423 | struct ppc_elf_link_hash_table *htab; | |
3424 | asection *s; | |
3425 | flagword flags; | |
3dab13f6 | 3426 | |
25dbc73a AM |
3427 | if (!_bfd_elf_create_got_section (abfd, info)) |
3428 | return FALSE; | |
3dab13f6 | 3429 | |
25dbc73a | 3430 | htab = ppc_elf_hash_table (info); |
3d4d4302 | 3431 | htab->got = s = bfd_get_linker_section (abfd, ".got"); |
25dbc73a AM |
3432 | if (s == NULL) |
3433 | abort (); | |
3dab13f6 | 3434 | |
9d8504b1 PB |
3435 | if (htab->is_vxworks) |
3436 | { | |
3d4d4302 | 3437 | htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt"); |
9d8504b1 PB |
3438 | if (!htab->sgotplt) |
3439 | abort (); | |
3440 | } | |
3441 | else | |
3442 | { | |
3443 | /* The powerpc .got has a blrl instruction in it. Mark it | |
3444 | executable. */ | |
3445 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | |
3446 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3447 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3448 | return FALSE; | |
3449 | } | |
3dab13f6 | 3450 | |
3d4d4302 | 3451 | htab->relgot = bfd_get_linker_section (abfd, ".rela.got"); |
64e77c6d L |
3452 | if (!htab->relgot) |
3453 | abort (); | |
3dab13f6 | 3454 | |
25dbc73a AM |
3455 | return TRUE; |
3456 | } | |
3dab13f6 | 3457 | |
93d1b056 AM |
3458 | /* Create a special linker section, used for R_PPC_EMB_SDAI16 and |
3459 | R_PPC_EMB_SDA2I16 pointers. These sections become part of .sdata | |
3460 | and .sdata2. Create _SDA_BASE_ and _SDA2_BASE too. */ | |
3461 | ||
3462 | static bfd_boolean | |
3463 | ppc_elf_create_linker_section (bfd *abfd, | |
3464 | struct bfd_link_info *info, | |
3465 | flagword flags, | |
3466 | elf_linker_section_t *lsect) | |
3467 | { | |
3468 | asection *s; | |
3469 | ||
3470 | flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
3471 | | SEC_LINKER_CREATED); | |
3472 | ||
3473 | s = bfd_make_section_anyway_with_flags (abfd, lsect->name, flags); | |
3474 | if (s == NULL) | |
3475 | return FALSE; | |
3476 | lsect->section = s; | |
3477 | ||
3478 | /* Define the sym on the first section of this name. */ | |
3479 | s = bfd_get_section_by_name (abfd, lsect->name); | |
3480 | ||
3481 | lsect->sym = _bfd_elf_define_linkage_sym (abfd, info, s, lsect->sym_name); | |
3482 | if (lsect->sym == NULL) | |
3483 | return FALSE; | |
3484 | lsect->sym->root.u.def.value = 0x8000; | |
3485 | return TRUE; | |
3486 | } | |
3487 | ||
e054468f AM |
3488 | static bfd_boolean |
3489 | ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info) | |
3490 | { | |
3491 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3492 | asection *s; | |
3493 | flagword flags; | |
3494 | ||
3495 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS | |
3496 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3497 | s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags); | |
3498 | htab->glink = s; | |
3499 | if (s == NULL | |
5446cbdf AM |
3500 | || !bfd_set_section_alignment (abfd, s, |
3501 | htab->params->ppc476_workaround ? 6 : 4)) | |
e054468f AM |
3502 | return FALSE; |
3503 | ||
6177242a AM |
3504 | if (!info->no_ld_generated_unwind_info) |
3505 | { | |
3506 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3507 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3508 | s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags); | |
3509 | htab->glink_eh_frame = s; | |
3510 | if (s == NULL | |
3511 | || !bfd_set_section_alignment (abfd, s, 2)) | |
3512 | return FALSE; | |
3513 | } | |
3514 | ||
e054468f AM |
3515 | flags = SEC_ALLOC | SEC_LINKER_CREATED; |
3516 | s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags); | |
3517 | htab->iplt = s; | |
3518 | if (s == NULL | |
3519 | || !bfd_set_section_alignment (abfd, s, 4)) | |
3520 | return FALSE; | |
3521 | ||
3522 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3523 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3524 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags); |
e054468f AM |
3525 | htab->reliplt = s; |
3526 | if (s == NULL | |
3527 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
3528 | return FALSE; | |
93d1b056 AM |
3529 | |
3530 | if (!ppc_elf_create_linker_section (abfd, info, 0, | |
3531 | &htab->sdata[0])) | |
3532 | return FALSE; | |
3533 | ||
3534 | if (!ppc_elf_create_linker_section (abfd, info, SEC_READONLY, | |
3535 | &htab->sdata[1])) | |
3536 | return FALSE; | |
3537 | ||
e054468f AM |
3538 | return TRUE; |
3539 | } | |
3540 | ||
25dbc73a AM |
3541 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
3542 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
3543 | to create .dynbss and .rela.bss). */ | |
3dab13f6 | 3544 | |
25dbc73a AM |
3545 | static bfd_boolean |
3546 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3547 | { | |
3548 | struct ppc_elf_link_hash_table *htab; | |
3549 | asection *s; | |
3550 | flagword flags; | |
3dab13f6 | 3551 | |
25dbc73a | 3552 | htab = ppc_elf_hash_table (info); |
3dab13f6 | 3553 | |
25dbc73a AM |
3554 | if (htab->got == NULL |
3555 | && !ppc_elf_create_got (abfd, info)) | |
3dab13f6 AM |
3556 | return FALSE; |
3557 | ||
25dbc73a AM |
3558 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
3559 | return FALSE; | |
3dab13f6 | 3560 | |
e054468f AM |
3561 | if (htab->glink == NULL |
3562 | && !ppc_elf_create_glink (abfd, info)) | |
d7128ce4 | 3563 | return FALSE; |
3dab13f6 | 3564 | |
3d4d4302 | 3565 | htab->dynbss = bfd_get_linker_section (abfd, ".dynbss"); |
14b2f831 AM |
3566 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", |
3567 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3b36f7e6 | 3568 | htab->dynsbss = s; |
3496cb2a | 3569 | if (s == NULL) |
25dbc73a | 3570 | return FALSE; |
3dab13f6 | 3571 | |
0e1862bb | 3572 | if (! bfd_link_pic (info)) |
25dbc73a | 3573 | { |
3d4d4302 | 3574 | htab->relbss = bfd_get_linker_section (abfd, ".rela.bss"); |
e054468f AM |
3575 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS |
3576 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3577 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags); |
3b36f7e6 | 3578 | htab->relsbss = s; |
25dbc73a | 3579 | if (s == NULL |
25dbc73a AM |
3580 | || ! bfd_set_section_alignment (abfd, s, 2)) |
3581 | return FALSE; | |
3582 | } | |
3dab13f6 | 3583 | |
711de32c RS |
3584 | if (htab->is_vxworks |
3585 | && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
3586 | return FALSE; | |
9d8504b1 | 3587 | |
3d4d4302 AM |
3588 | htab->relplt = bfd_get_linker_section (abfd, ".rela.plt"); |
3589 | htab->plt = s = bfd_get_linker_section (abfd, ".plt"); | |
25dbc73a AM |
3590 | if (s == NULL) |
3591 | abort (); | |
3dab13f6 | 3592 | |
3b36f7e6 | 3593 | flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; |
4a3dc543 RS |
3594 | if (htab->plt_type == PLT_VXWORKS) |
3595 | /* The VxWorks PLT is a loaded section with contents. */ | |
3596 | flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; | |
25dbc73a AM |
3597 | return bfd_set_section_flags (abfd, s, flags); |
3598 | } | |
3dab13f6 | 3599 | |
25dbc73a | 3600 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
58111eb7 | 3601 | |
25dbc73a | 3602 | static void |
fcfa13d2 | 3603 | ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
25dbc73a AM |
3604 | struct elf_link_hash_entry *dir, |
3605 | struct elf_link_hash_entry *ind) | |
3606 | { | |
3607 | struct ppc_elf_link_hash_entry *edir, *eind; | |
3dab13f6 | 3608 | |
25dbc73a AM |
3609 | edir = (struct ppc_elf_link_hash_entry *) dir; |
3610 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
3dab13f6 | 3611 | |
c79d6685 AM |
3612 | edir->tls_mask |= eind->tls_mask; |
3613 | edir->has_sda_refs |= eind->has_sda_refs; | |
3614 | ||
3615 | /* If called to transfer flags for a weakdef during processing | |
3616 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
3617 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3618 | if (!(ELIMINATE_COPY_RELOCS | |
3619 | && eind->elf.root.type != bfd_link_hash_indirect | |
3620 | && edir->elf.dynamic_adjusted)) | |
3621 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
3622 | ||
3623 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
3624 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3625 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3626 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
3627 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
3628 | ||
25dbc73a AM |
3629 | if (eind->dyn_relocs != NULL) |
3630 | { | |
3631 | if (edir->dyn_relocs != NULL) | |
3dab13f6 | 3632 | { |
6061a67d AM |
3633 | struct elf_dyn_relocs **pp; |
3634 | struct elf_dyn_relocs *p; | |
3dab13f6 | 3635 | |
fcfa13d2 | 3636 | /* Add reloc counts against the indirect sym to the direct sym |
25dbc73a AM |
3637 | list. Merge any entries against the same section. */ |
3638 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3dab13f6 | 3639 | { |
6061a67d | 3640 | struct elf_dyn_relocs *q; |
25dbc73a AM |
3641 | |
3642 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3643 | if (q->sec == p->sec) | |
3644 | { | |
3645 | q->pc_count += p->pc_count; | |
3646 | q->count += p->count; | |
3647 | *pp = p->next; | |
3648 | break; | |
3649 | } | |
3650 | if (q == NULL) | |
3651 | pp = &p->next; | |
3dab13f6 | 3652 | } |
25dbc73a | 3653 | *pp = edir->dyn_relocs; |
3dab13f6 | 3654 | } |
25dbc73a AM |
3655 | |
3656 | edir->dyn_relocs = eind->dyn_relocs; | |
3657 | eind->dyn_relocs = NULL; | |
3dab13f6 | 3658 | } |
3dab13f6 | 3659 | |
68ba6d40 AM |
3660 | /* If we were called to copy over info for a weak sym, that's all. |
3661 | You might think dyn_relocs need not be copied over; After all, | |
3662 | both syms will be dynamic or both non-dynamic so we're just | |
68ffbac6 | 3663 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
68ba6d40 AM |
3664 | code in ppc_elf_adjust_dynamic_symbol needs to check for |
3665 | dyn_relocs in read-only sections, and it does so on what is the | |
3666 | DIR sym here. */ | |
3667 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3668 | return; | |
3669 | ||
a6aa5195 AM |
3670 | /* Copy over the GOT refcount entries that we may have already seen to |
3671 | the symbol which just became indirect. */ | |
fcfa13d2 AM |
3672 | edir->elf.got.refcount += eind->elf.got.refcount; |
3673 | eind->elf.got.refcount = 0; | |
a6aa5195 AM |
3674 | |
3675 | /* And plt entries. */ | |
3676 | if (eind->elf.plt.plist != NULL) | |
3677 | { | |
3678 | if (edir->elf.plt.plist != NULL) | |
3679 | { | |
3680 | struct plt_entry **entp; | |
3681 | struct plt_entry *ent; | |
3682 | ||
3683 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3684 | { | |
3685 | struct plt_entry *dent; | |
3686 | ||
3687 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3688 | if (dent->sec == ent->sec && dent->addend == ent->addend) | |
3689 | { | |
3690 | dent->plt.refcount += ent->plt.refcount; | |
3691 | *entp = ent->next; | |
3692 | break; | |
3693 | } | |
3694 | if (dent == NULL) | |
3695 | entp = &ent->next; | |
3696 | } | |
3697 | *entp = edir->elf.plt.plist; | |
3698 | } | |
3699 | ||
3700 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3701 | eind->elf.plt.plist = NULL; | |
3702 | } | |
3703 | ||
fcfa13d2 | 3704 | if (eind->elf.dynindx != -1) |
25dbc73a | 3705 | { |
fcfa13d2 AM |
3706 | if (edir->elf.dynindx != -1) |
3707 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3708 | edir->elf.dynstr_index); | |
a6aa5195 AM |
3709 | edir->elf.dynindx = eind->elf.dynindx; |
3710 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3711 | eind->elf.dynindx = -1; | |
3712 | eind->elf.dynstr_index = 0; | |
25dbc73a | 3713 | } |
25dbc73a | 3714 | } |
3dab13f6 | 3715 | |
25dbc73a AM |
3716 | /* Hook called by the linker routine which adds symbols from an object |
3717 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
58111eb7 | 3718 | |
25dbc73a AM |
3719 | static bfd_boolean |
3720 | ppc_elf_add_symbol_hook (bfd *abfd, | |
3721 | struct bfd_link_info *info, | |
3722 | Elf_Internal_Sym *sym, | |
3723 | const char **namep ATTRIBUTE_UNUSED, | |
3724 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3725 | asection **secp, | |
3726 | bfd_vma *valp) | |
3727 | { | |
3728 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3729 | && !bfd_link_relocatable (info) |
0c8d6e5c AM |
3730 | && is_ppc_elf (info->output_bfd) |
3731 | && sym->st_size <= elf_gp_size (abfd)) | |
25dbc73a AM |
3732 | { |
3733 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3734 | put into .sbss. */ | |
3735 | struct ppc_elf_link_hash_table *htab; | |
3dab13f6 | 3736 | |
25dbc73a AM |
3737 | htab = ppc_elf_hash_table (info); |
3738 | if (htab->sbss == NULL) | |
3739 | { | |
644285ef | 3740 | flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; |
3dab13f6 | 3741 | |
644285ef AM |
3742 | if (!htab->elf.dynobj) |
3743 | htab->elf.dynobj = abfd; | |
3744 | ||
3496cb2a L |
3745 | htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3746 | ".sbss", | |
3747 | flags); | |
3748 | if (htab->sbss == NULL) | |
25dbc73a | 3749 | return FALSE; |
3dab13f6 | 3750 | } |
3dab13f6 | 3751 | |
25dbc73a AM |
3752 | *secp = htab->sbss; |
3753 | *valp = sym->st_size; | |
3754 | } | |
3dab13f6 | 3755 | |
a43942db | 3756 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC |
f1885d1e AM |
3757 | && (abfd->flags & DYNAMIC) == 0 |
3758 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
a43942db | 3759 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
e054468f | 3760 | |
25dbc73a | 3761 | return TRUE; |
3dab13f6 AM |
3762 | } |
3763 | \f | |
25dbc73a AM |
3764 | /* Find a linker generated pointer with a given addend and type. */ |
3765 | ||
3766 | static elf_linker_section_pointers_t * | |
3767 | elf_find_pointer_linker_section | |
3768 | (elf_linker_section_pointers_t *linker_pointers, | |
3769 | bfd_vma addend, | |
3770 | elf_linker_section_t *lsect) | |
252b5132 | 3771 | { |
25dbc73a AM |
3772 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) |
3773 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) | |
3774 | return linker_pointers; | |
252b5132 | 3775 | |
25dbc73a AM |
3776 | return NULL; |
3777 | } | |
3778 | ||
3779 | /* Allocate a pointer to live in a linker created section. */ | |
3780 | ||
3781 | static bfd_boolean | |
93d1b056 AM |
3782 | elf_allocate_pointer_linker_section (bfd *abfd, |
3783 | elf_linker_section_t *lsect, | |
3784 | struct elf_link_hash_entry *h, | |
3785 | const Elf_Internal_Rela *rel) | |
25dbc73a AM |
3786 | { |
3787 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
3788 | elf_linker_section_pointers_t *linker_section_ptr; | |
3789 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
3790 | bfd_size_type amt; | |
3791 | ||
3792 | BFD_ASSERT (lsect != NULL); | |
3793 | ||
3794 | /* Is this a global symbol? */ | |
3795 | if (h != NULL) | |
3796 | { | |
3797 | struct ppc_elf_link_hash_entry *eh; | |
3798 | ||
3799 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3800 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3801 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3802 | rel->r_addend, | |
3803 | lsect)) | |
3804 | return TRUE; | |
3805 | ||
3806 | ptr_linker_section_ptr = &eh->linker_section_pointer; | |
25dbc73a AM |
3807 | } |
3808 | else | |
3809 | { | |
0c8d6e5c | 3810 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3811 | |
25dbc73a AM |
3812 | /* Allocation of a pointer to a local symbol. */ |
3813 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
3814 | ||
3815 | /* Allocate a table to hold the local symbols if first time. */ | |
3816 | if (!ptr) | |
3817 | { | |
0ffa91dd | 3818 | unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; |
25dbc73a AM |
3819 | |
3820 | amt = num_symbols; | |
3821 | amt *= sizeof (elf_linker_section_pointers_t *); | |
3822 | ptr = bfd_zalloc (abfd, amt); | |
3823 | ||
3824 | if (!ptr) | |
3825 | return FALSE; | |
3826 | ||
3827 | elf_local_ptr_offsets (abfd) = ptr; | |
3828 | } | |
3829 | ||
3830 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3831 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
3832 | rel->r_addend, | |
3833 | lsect)) | |
3834 | return TRUE; | |
252b5132 | 3835 | |
25dbc73a | 3836 | ptr_linker_section_ptr = &ptr[r_symndx]; |
25dbc73a | 3837 | } |
41fcb14e | 3838 | |
25dbc73a AM |
3839 | /* Allocate space for a pointer in the linker section, and allocate |
3840 | a new pointer record from internal memory. */ | |
3841 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
3842 | amt = sizeof (elf_linker_section_pointers_t); | |
3843 | linker_section_ptr = bfd_alloc (abfd, amt); | |
41fcb14e | 3844 | |
25dbc73a | 3845 | if (!linker_section_ptr) |
7619e7c7 | 3846 | return FALSE; |
41fcb14e | 3847 | |
25dbc73a AM |
3848 | linker_section_ptr->next = *ptr_linker_section_ptr; |
3849 | linker_section_ptr->addend = rel->r_addend; | |
3850 | linker_section_ptr->lsect = lsect; | |
25dbc73a | 3851 | *ptr_linker_section_ptr = linker_section_ptr; |
41fcb14e | 3852 | |
93d1b056 AM |
3853 | if (!bfd_set_section_alignment (lsect->section->owner, lsect->section, 2)) |
3854 | return FALSE; | |
25dbc73a AM |
3855 | linker_section_ptr->offset = lsect->section->size; |
3856 | lsect->section->size += 4; | |
7619e7c7 | 3857 | |
25dbc73a AM |
3858 | #ifdef DEBUG |
3859 | fprintf (stderr, | |
3860 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
3861 | lsect->name, (long) linker_section_ptr->offset, | |
3862 | (long) lsect->section->size); | |
3863 | #endif | |
7619e7c7 AM |
3864 | |
3865 | return TRUE; | |
41fcb14e AM |
3866 | } |
3867 | ||
e054468f | 3868 | static struct plt_entry ** |
25dbc73a AM |
3869 | update_local_sym_info (bfd *abfd, |
3870 | Elf_Internal_Shdr *symtab_hdr, | |
3871 | unsigned long r_symndx, | |
3872 | int tls_type) | |
252b5132 | 3873 | { |
25dbc73a | 3874 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); |
e054468f | 3875 | struct plt_entry **local_plt; |
25dbc73a | 3876 | char *local_got_tls_masks; |
252b5132 | 3877 | |
25dbc73a | 3878 | if (local_got_refcounts == NULL) |
252b5132 | 3879 | { |
25dbc73a AM |
3880 | bfd_size_type size = symtab_hdr->sh_info; |
3881 | ||
e054468f AM |
3882 | size *= (sizeof (*local_got_refcounts) |
3883 | + sizeof (*local_plt) | |
3884 | + sizeof (*local_got_tls_masks)); | |
25dbc73a AM |
3885 | local_got_refcounts = bfd_zalloc (abfd, size); |
3886 | if (local_got_refcounts == NULL) | |
e054468f | 3887 | return NULL; |
25dbc73a | 3888 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 3889 | } |
41fcb14e | 3890 | |
e054468f AM |
3891 | local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info); |
3892 | local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
25dbc73a | 3893 | local_got_tls_masks[r_symndx] |= tls_type; |
e054468f AM |
3894 | if (tls_type != PLT_IFUNC) |
3895 | local_got_refcounts[r_symndx] += 1; | |
3896 | return local_plt + r_symndx; | |
25dbc73a | 3897 | } |
41fcb14e | 3898 | |
a6aa5195 | 3899 | static bfd_boolean |
3ec01793 | 3900 | update_plt_info (bfd *abfd, struct plt_entry **plist, |
a6aa5195 AM |
3901 | asection *sec, bfd_vma addend) |
3902 | { | |
3903 | struct plt_entry *ent; | |
3904 | ||
32af9f6e AM |
3905 | if (addend < 32768) |
3906 | sec = NULL; | |
3ec01793 | 3907 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3908 | if (ent->sec == sec && ent->addend == addend) |
3909 | break; | |
3910 | if (ent == NULL) | |
3911 | { | |
3912 | bfd_size_type amt = sizeof (*ent); | |
3913 | ent = bfd_alloc (abfd, amt); | |
3914 | if (ent == NULL) | |
3915 | return FALSE; | |
3ec01793 | 3916 | ent->next = *plist; |
a6aa5195 AM |
3917 | ent->sec = sec; |
3918 | ent->addend = addend; | |
3919 | ent->plt.refcount = 0; | |
3ec01793 | 3920 | *plist = ent; |
a6aa5195 AM |
3921 | } |
3922 | ent->plt.refcount += 1; | |
3923 | return TRUE; | |
3924 | } | |
3925 | ||
3926 | static struct plt_entry * | |
3ec01793 | 3927 | find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend) |
a6aa5195 AM |
3928 | { |
3929 | struct plt_entry *ent; | |
3930 | ||
3931 | if (addend < 32768) | |
3932 | sec = NULL; | |
3ec01793 | 3933 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3934 | if (ent->sec == sec && ent->addend == addend) |
3935 | break; | |
3936 | return ent; | |
3937 | } | |
3938 | ||
e054468f AM |
3939 | static bfd_boolean |
3940 | is_branch_reloc (enum elf_ppc_reloc_type r_type) | |
3941 | { | |
3942 | return (r_type == R_PPC_PLTREL24 | |
3943 | || r_type == R_PPC_LOCAL24PC | |
3944 | || r_type == R_PPC_REL24 | |
3945 | || r_type == R_PPC_REL14 | |
3946 | || r_type == R_PPC_REL14_BRTAKEN | |
3947 | || r_type == R_PPC_REL14_BRNTAKEN | |
3948 | || r_type == R_PPC_ADDR24 | |
3949 | || r_type == R_PPC_ADDR14 | |
3950 | || r_type == R_PPC_ADDR14_BRTAKEN | |
3951 | || r_type == R_PPC_ADDR14_BRNTAKEN); | |
3952 | } | |
3953 | ||
25dbc73a AM |
3954 | static void |
3955 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) | |
3956 | { | |
3957 | (*_bfd_error_handler) | |
3958 | (_("%B: relocation %s cannot be used when making a shared object"), | |
3959 | abfd, | |
3960 | ppc_elf_howto_table[r_type]->name); | |
3961 | bfd_set_error (bfd_error_bad_value); | |
252b5132 RH |
3962 | } |
3963 | ||
25dbc73a AM |
3964 | /* Look through the relocs for a section during the first phase, and |
3965 | allocate space in the global offset table or procedure linkage | |
3966 | table. */ | |
252b5132 | 3967 | |
b34976b6 | 3968 | static bfd_boolean |
25dbc73a AM |
3969 | ppc_elf_check_relocs (bfd *abfd, |
3970 | struct bfd_link_info *info, | |
3971 | asection *sec, | |
3972 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3973 | { |
7619e7c7 | 3974 | struct ppc_elf_link_hash_table *htab; |
25dbc73a AM |
3975 | Elf_Internal_Shdr *symtab_hdr; |
3976 | struct elf_link_hash_entry **sym_hashes; | |
3977 | const Elf_Internal_Rela *rel; | |
3978 | const Elf_Internal_Rela *rel_end; | |
a6aa5195 | 3979 | asection *got2, *sreloc; |
727fc41e | 3980 | struct elf_link_hash_entry *tga; |
25dbc73a | 3981 | |
0e1862bb | 3982 | if (bfd_link_relocatable (info)) |
25dbc73a | 3983 | return TRUE; |
252b5132 | 3984 | |
c87b5a93 AM |
3985 | /* Don't do anything special with non-loaded, non-alloced sections. |
3986 | In particular, any relocs in such sections should not affect GOT | |
3987 | and PLT reference counting (ie. we don't allow them to create GOT | |
3988 | or PLT entries), there's no possibility or desire to optimize TLS | |
3989 | relocs, and there's not much point in propagating relocs to shared | |
3990 | libs that the dynamic linker won't relocate. */ | |
3991 | if ((sec->flags & SEC_ALLOC) == 0) | |
3992 | return TRUE; | |
3993 | ||
252b5132 | 3994 | #ifdef DEBUG |
25dbc73a AM |
3995 | _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", |
3996 | sec, abfd); | |
252b5132 RH |
3997 | #endif |
3998 | ||
0c8d6e5c | 3999 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 4000 | |
25dbc73a AM |
4001 | /* Initialize howto table if not already done. */ |
4002 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
4003 | ppc_elf_howto_init (); | |
4004 | ||
7619e7c7 | 4005 | htab = ppc_elf_hash_table (info); |
25f23106 AM |
4006 | if (htab->glink == NULL) |
4007 | { | |
4008 | if (htab->elf.dynobj == NULL) | |
4009 | htab->elf.dynobj = abfd; | |
4010 | if (!ppc_elf_create_glink (htab->elf.dynobj, info)) | |
4011 | return FALSE; | |
4012 | } | |
727fc41e AM |
4013 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
4014 | FALSE, FALSE, TRUE); | |
0ffa91dd | 4015 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a | 4016 | sym_hashes = elf_sym_hashes (abfd); |
a6aa5195 | 4017 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
4018 | sreloc = NULL; |
4019 | ||
4020 | rel_end = relocs + sec->reloc_count; | |
4021 | for (rel = relocs; rel < rel_end; rel++) | |
4022 | { | |
4023 | unsigned long r_symndx; | |
4024 | enum elf_ppc_reloc_type r_type; | |
4025 | struct elf_link_hash_entry *h; | |
727fc41e | 4026 | int tls_type; |
cbf95972 | 4027 | struct plt_entry **ifunc; |
25dbc73a AM |
4028 | |
4029 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4030 | if (r_symndx < symtab_hdr->sh_info) | |
4031 | h = NULL; | |
4032 | else | |
973a3492 L |
4033 | { |
4034 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4035 | while (h->root.type == bfd_link_hash_indirect | |
4036 | || h->root.type == bfd_link_hash_warning) | |
4037 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
4038 | |
4039 | /* PR15323, ref flags aren't set for references in the same | |
4040 | object. */ | |
4041 | h->root.non_ir_ref = 1; | |
973a3492 | 4042 | } |
25dbc73a AM |
4043 | |
4044 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
4045 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
4046 | startup code. */ | |
3b36f7e6 AM |
4047 | if (h != NULL |
4048 | && htab->got == NULL | |
4049 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 4050 | { |
3b36f7e6 AM |
4051 | if (htab->elf.dynobj == NULL) |
4052 | htab->elf.dynobj = abfd; | |
4053 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4054 | return FALSE; | |
4055 | BFD_ASSERT (h == htab->elf.hgot); | |
25dbc73a | 4056 | } |
252b5132 | 4057 | |
727fc41e | 4058 | tls_type = 0; |
de972ffa | 4059 | r_type = ELF32_R_TYPE (rel->r_info); |
cbf95972 | 4060 | ifunc = NULL; |
06a162cf | 4061 | if (h == NULL && !htab->is_vxworks) |
e054468f | 4062 | { |
06a162cf AM |
4063 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4064 | abfd, r_symndx); | |
4065 | if (isym == NULL) | |
4066 | return FALSE; | |
4067 | ||
0bed072f | 4068 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
e054468f | 4069 | { |
0bed072f | 4070 | /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */ |
06a162cf AM |
4071 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, |
4072 | PLT_IFUNC); | |
4073 | if (ifunc == NULL) | |
e054468f AM |
4074 | return FALSE; |
4075 | ||
06a162cf AM |
4076 | /* STT_GNU_IFUNC symbols must have a PLT entry; |
4077 | In a non-pie executable even when there are | |
4078 | no plt calls. */ | |
0e1862bb | 4079 | if (!bfd_link_pic (info) |
0bed072f | 4080 | || is_branch_reloc (r_type)) |
e054468f | 4081 | { |
0bed072f AM |
4082 | bfd_vma addend = 0; |
4083 | if (r_type == R_PPC_PLTREL24) | |
4084 | { | |
4085 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4086 | if (bfd_link_pic (info)) |
0bed072f AM |
4087 | addend = rel->r_addend; |
4088 | } | |
4089 | if (!update_plt_info (abfd, ifunc, got2, addend)) | |
4090 | return FALSE; | |
e054468f AM |
4091 | } |
4092 | } | |
25f23106 AM |
4093 | } |
4094 | ||
de972ffa AM |
4095 | if (!htab->is_vxworks |
4096 | && is_branch_reloc (r_type) | |
4097 | && h != NULL | |
4098 | && h == tga) | |
25f23106 | 4099 | { |
de972ffa AM |
4100 | if (rel != relocs |
4101 | && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD | |
4102 | || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) | |
4103 | /* We have a new-style __tls_get_addr call with a marker | |
4104 | reloc. */ | |
4105 | ; | |
4106 | else | |
4107 | /* Mark this section as having an old-style call. */ | |
4108 | sec->has_tls_get_addr_call = 1; | |
e054468f | 4109 | } |
727fc41e | 4110 | |
25dbc73a AM |
4111 | switch (r_type) |
4112 | { | |
727fc41e AM |
4113 | case R_PPC_TLSGD: |
4114 | case R_PPC_TLSLD: | |
4115 | /* These special tls relocs tie a call to __tls_get_addr with | |
4116 | its parameter symbol. */ | |
4117 | break; | |
4118 | ||
25dbc73a AM |
4119 | case R_PPC_GOT_TLSLD16: |
4120 | case R_PPC_GOT_TLSLD16_LO: | |
4121 | case R_PPC_GOT_TLSLD16_HI: | |
4122 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4123 | tls_type = TLS_TLS | TLS_LD; |
4124 | goto dogottls; | |
252b5132 | 4125 | |
25dbc73a AM |
4126 | case R_PPC_GOT_TLSGD16: |
4127 | case R_PPC_GOT_TLSGD16_LO: | |
4128 | case R_PPC_GOT_TLSGD16_HI: | |
4129 | case R_PPC_GOT_TLSGD16_HA: | |
4130 | tls_type = TLS_TLS | TLS_GD; | |
4131 | goto dogottls; | |
4132 | ||
4133 | case R_PPC_GOT_TPREL16: | |
4134 | case R_PPC_GOT_TPREL16_LO: | |
4135 | case R_PPC_GOT_TPREL16_HI: | |
4136 | case R_PPC_GOT_TPREL16_HA: | |
0e1862bb | 4137 | if (bfd_link_pic (info)) |
25dbc73a AM |
4138 | info->flags |= DF_STATIC_TLS; |
4139 | tls_type = TLS_TLS | TLS_TPREL; | |
4140 | goto dogottls; | |
4141 | ||
4142 | case R_PPC_GOT_DTPREL16: | |
4143 | case R_PPC_GOT_DTPREL16_LO: | |
4144 | case R_PPC_GOT_DTPREL16_HI: | |
4145 | case R_PPC_GOT_DTPREL16_HA: | |
4146 | tls_type = TLS_TLS | TLS_DTPREL; | |
4147 | dogottls: | |
4148 | sec->has_tls_reloc = 1; | |
4149 | /* Fall thru */ | |
252b5132 | 4150 | |
25dbc73a AM |
4151 | /* GOT16 relocations */ |
4152 | case R_PPC_GOT16: | |
4153 | case R_PPC_GOT16_LO: | |
4154 | case R_PPC_GOT16_HI: | |
4155 | case R_PPC_GOT16_HA: | |
4156 | /* This symbol requires a global offset table entry. */ | |
4157 | if (htab->got == NULL) | |
4158 | { | |
4159 | if (htab->elf.dynobj == NULL) | |
4160 | htab->elf.dynobj = abfd; | |
4161 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4162 | return FALSE; | |
4163 | } | |
4164 | if (h != NULL) | |
4165 | { | |
4166 | h->got.refcount += 1; | |
4167 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
4168 | } | |
4169 | else | |
4170 | /* This is a global offset table entry for a local symbol. */ | |
4171 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
4172 | return FALSE; | |
91e21fb7 AM |
4173 | |
4174 | /* We may also need a plt entry if the symbol turns out to be | |
4175 | an ifunc. */ | |
0e1862bb | 4176 | if (h != NULL && !bfd_link_pic (info)) |
91e21fb7 AM |
4177 | { |
4178 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4179 | return FALSE; | |
4180 | } | |
25dbc73a | 4181 | break; |
252b5132 | 4182 | |
25dbc73a AM |
4183 | /* Indirect .sdata relocation. */ |
4184 | case R_PPC_EMB_SDAI16: | |
0e1862bb | 4185 | if (bfd_link_pic (info)) |
25dbc73a AM |
4186 | { |
4187 | bad_shared_reloc (abfd, r_type); | |
4188 | return FALSE; | |
4189 | } | |
93d1b056 AM |
4190 | htab->sdata[0].sym->ref_regular = 1; |
4191 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[0], | |
4192 | h, rel)) | |
25dbc73a | 4193 | return FALSE; |
046183de AM |
4194 | if (h != NULL) |
4195 | { | |
4196 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4197 | h->non_got_ref = TRUE; | |
4198 | } | |
25dbc73a | 4199 | break; |
252b5132 | 4200 | |
25dbc73a AM |
4201 | /* Indirect .sdata2 relocation. */ |
4202 | case R_PPC_EMB_SDA2I16: | |
0e1862bb | 4203 | if (bfd_link_pic (info)) |
25dbc73a AM |
4204 | { |
4205 | bad_shared_reloc (abfd, r_type); | |
4206 | return FALSE; | |
4207 | } | |
93d1b056 AM |
4208 | htab->sdata[1].sym->ref_regular = 1; |
4209 | if (!elf_allocate_pointer_linker_section (abfd, &htab->sdata[1], | |
4210 | h, rel)) | |
25dbc73a | 4211 | return FALSE; |
046183de AM |
4212 | if (h != NULL) |
4213 | { | |
4214 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4215 | h->non_got_ref = TRUE; | |
4216 | } | |
25dbc73a | 4217 | break; |
252b5132 | 4218 | |
93d1b056 AM |
4219 | case R_PPC_SDAREL16: |
4220 | htab->sdata[0].sym->ref_regular = 1; | |
4221 | /* Fall thru */ | |
4222 | ||
b9c361e0 JL |
4223 | case R_PPC_VLE_SDAREL_LO16A: |
4224 | case R_PPC_VLE_SDAREL_LO16D: | |
4225 | case R_PPC_VLE_SDAREL_HI16A: | |
4226 | case R_PPC_VLE_SDAREL_HI16D: | |
4227 | case R_PPC_VLE_SDAREL_HA16A: | |
4228 | case R_PPC_VLE_SDAREL_HA16D: | |
046183de AM |
4229 | if (h != NULL) |
4230 | { | |
4231 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4232 | h->non_got_ref = TRUE; | |
4233 | } | |
4234 | break; | |
4235 | ||
b9c361e0 JL |
4236 | case R_PPC_VLE_REL8: |
4237 | case R_PPC_VLE_REL15: | |
4238 | case R_PPC_VLE_REL24: | |
4239 | case R_PPC_VLE_LO16A: | |
4240 | case R_PPC_VLE_LO16D: | |
4241 | case R_PPC_VLE_HI16A: | |
4242 | case R_PPC_VLE_HI16D: | |
4243 | case R_PPC_VLE_HA16A: | |
4244 | case R_PPC_VLE_HA16D: | |
4245 | break; | |
4246 | ||
25dbc73a | 4247 | case R_PPC_EMB_SDA2REL: |
0e1862bb | 4248 | if (bfd_link_pic (info)) |
046183de AM |
4249 | { |
4250 | bad_shared_reloc (abfd, r_type); | |
4251 | return FALSE; | |
4252 | } | |
93d1b056 | 4253 | htab->sdata[1].sym->ref_regular = 1; |
046183de AM |
4254 | if (h != NULL) |
4255 | { | |
4256 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4257 | h->non_got_ref = TRUE; | |
4258 | } | |
4259 | break; | |
4260 | ||
b9c361e0 JL |
4261 | case R_PPC_VLE_SDA21_LO: |
4262 | case R_PPC_VLE_SDA21: | |
25dbc73a AM |
4263 | case R_PPC_EMB_SDA21: |
4264 | case R_PPC_EMB_RELSDA: | |
0e1862bb | 4265 | if (bfd_link_pic (info)) |
046183de AM |
4266 | { |
4267 | bad_shared_reloc (abfd, r_type); | |
4268 | return FALSE; | |
4269 | } | |
046183de AM |
4270 | if (h != NULL) |
4271 | { | |
4272 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4273 | h->non_got_ref = TRUE; | |
4274 | } | |
4275 | break; | |
4276 | ||
25dbc73a AM |
4277 | case R_PPC_EMB_NADDR32: |
4278 | case R_PPC_EMB_NADDR16: | |
4279 | case R_PPC_EMB_NADDR16_LO: | |
4280 | case R_PPC_EMB_NADDR16_HI: | |
4281 | case R_PPC_EMB_NADDR16_HA: | |
0e1862bb | 4282 | if (bfd_link_pic (info)) |
25dbc73a AM |
4283 | { |
4284 | bad_shared_reloc (abfd, r_type); | |
4285 | return FALSE; | |
4286 | } | |
4dc4a9a5 | 4287 | if (h != NULL) |
046183de | 4288 | h->non_got_ref = TRUE; |
25dbc73a | 4289 | break; |
252b5132 | 4290 | |
25dbc73a | 4291 | case R_PPC_PLTREL24: |
de972ffa | 4292 | if (h == NULL) |
6d78d0b9 AM |
4293 | break; |
4294 | /* Fall through */ | |
4295 | case R_PPC_PLT32: | |
25dbc73a AM |
4296 | case R_PPC_PLTREL32: |
4297 | case R_PPC_PLT16_LO: | |
4298 | case R_PPC_PLT16_HI: | |
4299 | case R_PPC_PLT16_HA: | |
4300 | #ifdef DEBUG | |
4301 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
4302 | #endif | |
cbf95972 | 4303 | /* This symbol requires a procedure linkage table entry. */ |
25dbc73a AM |
4304 | if (h == NULL) |
4305 | { | |
cbf95972 AM |
4306 | if (ifunc == NULL) |
4307 | { | |
4308 | /* It does not make sense to have a procedure linkage | |
4309 | table entry for a non-ifunc local symbol. */ | |
4310 | info->callbacks->einfo | |
4311 | (_("%P: %H: %s reloc against local symbol\n"), | |
4312 | abfd, sec, rel->r_offset, | |
4313 | ppc_elf_howto_table[r_type]->name); | |
4314 | bfd_set_error (bfd_error_bad_value); | |
4315 | return FALSE; | |
4316 | } | |
25dbc73a | 4317 | } |
a6aa5195 AM |
4318 | else |
4319 | { | |
016687f8 | 4320 | bfd_vma addend = 0; |
ee05f2fe | 4321 | |
016687f8 AM |
4322 | if (r_type == R_PPC_PLTREL24) |
4323 | { | |
4324 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
0e1862bb | 4325 | if (bfd_link_pic (info)) |
a877a2b6 | 4326 | addend = rel->r_addend; |
016687f8 | 4327 | } |
a6aa5195 | 4328 | h->needs_plt = 1; |
32af9f6e | 4329 | if (!update_plt_info (abfd, &h->plt.plist, got2, addend)) |
a6aa5195 AM |
4330 | return FALSE; |
4331 | } | |
25dbc73a | 4332 | break; |
ee05f2fe | 4333 | |
25dbc73a AM |
4334 | /* The following relocations don't need to propagate the |
4335 | relocation if linking a shared object since they are | |
4336 | section relative. */ | |
4337 | case R_PPC_SECTOFF: | |
4338 | case R_PPC_SECTOFF_LO: | |
4339 | case R_PPC_SECTOFF_HI: | |
4340 | case R_PPC_SECTOFF_HA: | |
4341 | case R_PPC_DTPREL16: | |
4342 | case R_PPC_DTPREL16_LO: | |
4343 | case R_PPC_DTPREL16_HI: | |
4344 | case R_PPC_DTPREL16_HA: | |
4345 | case R_PPC_TOC16: | |
4346 | break; | |
252b5132 | 4347 | |
d7128ce4 AM |
4348 | case R_PPC_REL16: |
4349 | case R_PPC_REL16_LO: | |
4350 | case R_PPC_REL16_HI: | |
4351 | case R_PPC_REL16_HA: | |
a680de9a | 4352 | case R_PPC_REL16DX_HA: |
016687f8 | 4353 | ppc_elf_tdata (abfd)->has_rel16 = 1; |
d7128ce4 AM |
4354 | break; |
4355 | ||
a6aa5195 | 4356 | /* These are just markers. */ |
25dbc73a AM |
4357 | case R_PPC_TLS: |
4358 | case R_PPC_EMB_MRKREF: | |
4359 | case R_PPC_NONE: | |
4360 | case R_PPC_max: | |
32af9f6e AM |
4361 | case R_PPC_RELAX: |
4362 | case R_PPC_RELAX_PLT: | |
4363 | case R_PPC_RELAX_PLTREL24: | |
25dbc73a | 4364 | break; |
252b5132 | 4365 | |
25dbc73a AM |
4366 | /* These should only appear in dynamic objects. */ |
4367 | case R_PPC_COPY: | |
4368 | case R_PPC_GLOB_DAT: | |
4369 | case R_PPC_JMP_SLOT: | |
4370 | case R_PPC_RELATIVE: | |
e054468f | 4371 | case R_PPC_IRELATIVE: |
25dbc73a | 4372 | break; |
252b5132 | 4373 | |
25dbc73a AM |
4374 | /* These aren't handled yet. We'll report an error later. */ |
4375 | case R_PPC_ADDR30: | |
4376 | case R_PPC_EMB_RELSEC16: | |
4377 | case R_PPC_EMB_RELST_LO: | |
4378 | case R_PPC_EMB_RELST_HI: | |
4379 | case R_PPC_EMB_RELST_HA: | |
4380 | case R_PPC_EMB_BIT_FLD: | |
4381 | break; | |
252b5132 | 4382 | |
25dbc73a AM |
4383 | /* This refers only to functions defined in the shared library. */ |
4384 | case R_PPC_LOCAL24PC: | |
727fc41e | 4385 | if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) |
016687f8 AM |
4386 | { |
4387 | htab->plt_type = PLT_OLD; | |
4388 | htab->old_bfd = abfd; | |
4389 | } | |
c7e17e05 AM |
4390 | if (h != NULL && h->type == STT_GNU_IFUNC) |
4391 | { | |
0e1862bb | 4392 | if (bfd_link_pic (info)) |
c7e17e05 | 4393 | { |
cbf95972 AM |
4394 | info->callbacks->einfo |
4395 | (_("%P: %H: @local call to ifunc %s\n"), | |
4396 | abfd, sec, rel->r_offset, | |
4397 | h->root.root.string); | |
c7e17e05 AM |
4398 | bfd_set_error (bfd_error_bad_value); |
4399 | return FALSE; | |
4400 | } | |
4401 | h->needs_plt = 1; | |
4402 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4403 | return FALSE; | |
4404 | } | |
25dbc73a | 4405 | break; |
252b5132 | 4406 | |
25dbc73a AM |
4407 | /* This relocation describes the C++ object vtable hierarchy. |
4408 | Reconstruct it for later use during GC. */ | |
4409 | case R_PPC_GNU_VTINHERIT: | |
4410 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
4411 | return FALSE; | |
4412 | break; | |
252b5132 | 4413 | |
25dbc73a AM |
4414 | /* This relocation describes which C++ vtable entries are actually |
4415 | used. Record for later use during GC. */ | |
4416 | case R_PPC_GNU_VTENTRY: | |
d17e0c6e JB |
4417 | BFD_ASSERT (h != NULL); |
4418 | if (h != NULL | |
4419 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
25dbc73a AM |
4420 | return FALSE; |
4421 | break; | |
252b5132 | 4422 | |
25dbc73a AM |
4423 | /* We shouldn't really be seeing these. */ |
4424 | case R_PPC_TPREL32: | |
1d483afe AM |
4425 | case R_PPC_TPREL16: |
4426 | case R_PPC_TPREL16_LO: | |
4427 | case R_PPC_TPREL16_HI: | |
4428 | case R_PPC_TPREL16_HA: | |
0e1862bb | 4429 | if (bfd_link_pic (info)) |
25dbc73a AM |
4430 | info->flags |= DF_STATIC_TLS; |
4431 | goto dodyn; | |
252b5132 | 4432 | |
25dbc73a AM |
4433 | /* Nor these. */ |
4434 | case R_PPC_DTPMOD32: | |
4435 | case R_PPC_DTPREL32: | |
4436 | goto dodyn; | |
252b5132 | 4437 | |
9edfd1af AM |
4438 | case R_PPC_REL32: |
4439 | if (h == NULL | |
4440 | && got2 != NULL | |
4441 | && (sec->flags & SEC_CODE) != 0 | |
0e1862bb | 4442 | && bfd_link_pic (info) |
4a3dc543 | 4443 | && htab->plt_type == PLT_UNSET) |
9edfd1af AM |
4444 | { |
4445 | /* Old -fPIC gcc code has .long LCTOC1-LCFx just before | |
4446 | the start of a function, which assembles to a REL32 | |
4447 | reference to .got2. If we detect one of these, then | |
4448 | force the old PLT layout because the linker cannot | |
4449 | reliably deduce the GOT pointer value needed for | |
4450 | PLT call stubs. */ | |
4451 | asection *s; | |
87d72d41 | 4452 | Elf_Internal_Sym *isym; |
9edfd1af | 4453 | |
87d72d41 AM |
4454 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4455 | abfd, r_symndx); | |
4456 | if (isym == NULL) | |
4457 | return FALSE; | |
4458 | ||
4459 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
9edfd1af | 4460 | if (s == got2) |
016687f8 AM |
4461 | { |
4462 | htab->plt_type = PLT_OLD; | |
4463 | htab->old_bfd = abfd; | |
4464 | } | |
9edfd1af | 4465 | } |
7123df0e | 4466 | if (h == NULL || h == htab->elf.hgot) |
fd38b44c | 4467 | break; |
625af618 AM |
4468 | /* fall through */ |
4469 | ||
4470 | case R_PPC_ADDR32: | |
4471 | case R_PPC_ADDR16: | |
4472 | case R_PPC_ADDR16_LO: | |
4473 | case R_PPC_ADDR16_HI: | |
4474 | case R_PPC_ADDR16_HA: | |
4475 | case R_PPC_UADDR32: | |
4476 | case R_PPC_UADDR16: | |
0e1862bb | 4477 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
4478 | { |
4479 | /* We may need a plt entry if the symbol turns out to be | |
4480 | a function defined in a dynamic object. */ | |
3ec01793 | 4481 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
625af618 AM |
4482 | return FALSE; |
4483 | ||
4484 | /* We may need a copy reloc too. */ | |
4485 | h->non_got_ref = 1; | |
4486 | h->pointer_equality_needed = 1; | |
d3e454b9 AM |
4487 | if (r_type == R_PPC_ADDR16_HA) |
4488 | ppc_elf_hash_entry (h)->has_addr16_ha = 1; | |
4489 | if (r_type == R_PPC_ADDR16_LO) | |
4490 | ppc_elf_hash_entry (h)->has_addr16_lo = 1; | |
625af618 AM |
4491 | } |
4492 | goto dodyn; | |
9edfd1af | 4493 | |
25dbc73a AM |
4494 | case R_PPC_REL24: |
4495 | case R_PPC_REL14: | |
4496 | case R_PPC_REL14_BRTAKEN: | |
4497 | case R_PPC_REL14_BRNTAKEN: | |
d7128ce4 | 4498 | if (h == NULL) |
25dbc73a | 4499 | break; |
7123df0e | 4500 | if (h == htab->elf.hgot) |
d7128ce4 | 4501 | { |
7123df0e | 4502 | if (htab->plt_type == PLT_UNSET) |
016687f8 AM |
4503 | { |
4504 | htab->plt_type = PLT_OLD; | |
4505 | htab->old_bfd = abfd; | |
4506 | } | |
d7128ce4 AM |
4507 | break; |
4508 | } | |
25dbc73a | 4509 | /* fall through */ |
ee05f2fe | 4510 | |
25dbc73a | 4511 | case R_PPC_ADDR24: |
25dbc73a AM |
4512 | case R_PPC_ADDR14: |
4513 | case R_PPC_ADDR14_BRTAKEN: | |
4514 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 4515 | if (h != NULL && !bfd_link_pic (info)) |
25dbc73a AM |
4516 | { |
4517 | /* We may need a plt entry if the symbol turns out to be | |
4518 | a function defined in a dynamic object. */ | |
e054468f | 4519 | h->needs_plt = 1; |
de972ffa | 4520 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
a6aa5195 | 4521 | return FALSE; |
625af618 | 4522 | break; |
25dbc73a | 4523 | } |
7619e7c7 | 4524 | |
25dbc73a AM |
4525 | dodyn: |
4526 | /* If we are creating a shared library, and this is a reloc | |
4527 | against a global symbol, or a non PC relative reloc | |
4528 | against a local symbol, then we need to copy the reloc | |
4529 | into the shared library. However, if we are linking with | |
4530 | -Bsymbolic, we do not need to copy a reloc against a | |
4531 | global symbol which is defined in an object we are | |
4532 | including in the link (i.e., DEF_REGULAR is set). At | |
4533 | this point we have not seen all the input files, so it is | |
4534 | possible that DEF_REGULAR is not set now but will be set | |
4535 | later (it is never cleared). In case of a weak definition, | |
4536 | DEF_REGULAR may be cleared later by a strong definition in | |
4537 | a shared library. We account for that possibility below by | |
4538 | storing information in the dyn_relocs field of the hash | |
4539 | table entry. A similar situation occurs when creating | |
4540 | shared libraries and symbol visibility changes render the | |
4541 | symbol local. | |
7619e7c7 | 4542 | |
25dbc73a AM |
4543 | If on the other hand, we are creating an executable, we |
4544 | may need to keep relocations for symbols satisfied by a | |
4545 | dynamic library if we manage to avoid copy relocs for the | |
4546 | symbol. */ | |
0e1862bb | 4547 | if ((bfd_link_pic (info) |
1d483afe | 4548 | && (must_be_dyn_reloc (info, r_type) |
25dbc73a | 4549 | || (h != NULL |
198f1157 | 4550 | && (!SYMBOLIC_BIND (info, h) |
25dbc73a AM |
4551 | || h->root.type == bfd_link_hash_defweak |
4552 | || !h->def_regular)))) | |
4553 | || (ELIMINATE_COPY_RELOCS | |
0e1862bb | 4554 | && !bfd_link_pic (info) |
25dbc73a AM |
4555 | && h != NULL |
4556 | && (h->root.type == bfd_link_hash_defweak | |
de972ffa | 4557 | || !h->def_regular))) |
25dbc73a | 4558 | { |
25dbc73a AM |
4559 | #ifdef DEBUG |
4560 | fprintf (stderr, | |
4561 | "ppc_elf_check_relocs needs to " | |
4562 | "create relocation for %s\n", | |
4563 | (h && h->root.root.string | |
4564 | ? h->root.root.string : "<unknown>")); | |
4565 | #endif | |
4566 | if (sreloc == NULL) | |
4567 | { | |
c9a2f333 AM |
4568 | if (htab->elf.dynobj == NULL) |
4569 | htab->elf.dynobj = abfd; | |
83bac4b0 NC |
4570 | |
4571 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
4572 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
4573 | ||
25dbc73a | 4574 | if (sreloc == NULL) |
83bac4b0 | 4575 | return FALSE; |
25dbc73a | 4576 | } |
7619e7c7 | 4577 | |
25dbc73a AM |
4578 | /* If this is a global symbol, we count the number of |
4579 | relocations we need for this symbol. */ | |
4580 | if (h != NULL) | |
4581 | { | |
f95f8542 AM |
4582 | struct elf_dyn_relocs *p; |
4583 | struct elf_dyn_relocs **rel_head; | |
4584 | ||
91d6fa6a | 4585 | rel_head = &ppc_elf_hash_entry (h)->dyn_relocs; |
f95f8542 AM |
4586 | p = *rel_head; |
4587 | if (p == NULL || p->sec != sec) | |
4588 | { | |
4589 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4590 | if (p == NULL) | |
4591 | return FALSE; | |
4592 | p->next = *rel_head; | |
4593 | *rel_head = p; | |
4594 | p->sec = sec; | |
4595 | p->count = 0; | |
4596 | p->pc_count = 0; | |
4597 | } | |
4598 | p->count += 1; | |
4599 | if (!must_be_dyn_reloc (info, r_type)) | |
4600 | p->pc_count += 1; | |
25dbc73a AM |
4601 | } |
4602 | else | |
4603 | { | |
4604 | /* Track dynamic relocs needed for local syms too. | |
4605 | We really need local syms available to do this | |
4606 | easily. Oh well. */ | |
f95f8542 AM |
4607 | struct ppc_dyn_relocs *p; |
4608 | struct ppc_dyn_relocs **rel_head; | |
4609 | bfd_boolean is_ifunc; | |
25dbc73a | 4610 | asection *s; |
6edfbbad | 4611 | void *vpp; |
87d72d41 | 4612 | Elf_Internal_Sym *isym; |
6edfbbad | 4613 | |
87d72d41 AM |
4614 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4615 | abfd, r_symndx); | |
4616 | if (isym == NULL) | |
25dbc73a | 4617 | return FALSE; |
7fce784e | 4618 | |
87d72d41 AM |
4619 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
4620 | if (s == NULL) | |
4621 | s = sec; | |
4622 | ||
6edfbbad | 4623 | vpp = &elf_section_data (s)->local_dynrel; |
f95f8542 AM |
4624 | rel_head = (struct ppc_dyn_relocs **) vpp; |
4625 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
4626 | p = *rel_head; | |
4627 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
4628 | p = p->next; | |
4629 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
4630 | { | |
4631 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4632 | if (p == NULL) | |
4633 | return FALSE; | |
4634 | p->next = *rel_head; | |
4635 | *rel_head = p; | |
4636 | p->sec = sec; | |
4637 | p->ifunc = is_ifunc; | |
4638 | p->count = 0; | |
4639 | } | |
4640 | p->count += 1; | |
25dbc73a | 4641 | } |
7619e7c7 | 4642 | } |
25dbc73a AM |
4643 | |
4644 | break; | |
7619e7c7 AM |
4645 | } |
4646 | } | |
ee05f2fe | 4647 | |
25dbc73a AM |
4648 | return TRUE; |
4649 | } | |
4650 | \f | |
34c8bcba JM |
4651 | |
4652 | /* Merge object attributes from IBFD into OBFD. Raise an error if | |
4653 | there are conflicting attributes. */ | |
4654 | static bfd_boolean | |
4655 | ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd) | |
4656 | { | |
c6e65352 DJ |
4657 | obj_attribute *in_attr, *in_attrs; |
4658 | obj_attribute *out_attr, *out_attrs; | |
34c8bcba JM |
4659 | |
4660 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
4661 | { | |
4662 | /* This is the first object. Copy the attributes. */ | |
4663 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
4664 | ||
4665 | /* Use the Tag_null value to indicate the attributes have been | |
4666 | initialized. */ | |
4667 | elf_known_obj_attributes_proc (obfd)[0].i = 1; | |
4668 | ||
4669 | return TRUE; | |
4670 | } | |
4671 | ||
c6e65352 DJ |
4672 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
4673 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
4674 | ||
34c8bcba JM |
4675 | /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge |
4676 | non-conflicting ones. */ | |
c6e65352 DJ |
4677 | in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; |
4678 | out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; | |
4679 | if (in_attr->i != out_attr->i) | |
34c8bcba | 4680 | { |
c6e65352 DJ |
4681 | out_attr->type = 1; |
4682 | if (out_attr->i == 0) | |
4683 | out_attr->i = in_attr->i; | |
4684 | else if (in_attr->i == 0) | |
34c8bcba | 4685 | ; |
c6e65352 | 4686 | else if (out_attr->i == 1 && in_attr->i == 2) |
34c8bcba JM |
4687 | _bfd_error_handler |
4688 | (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); | |
3c7b9897 AM |
4689 | else if (out_attr->i == 1 && in_attr->i == 3) |
4690 | _bfd_error_handler | |
5b914448 | 4691 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4692 | obfd, ibfd); |
4693 | else if (out_attr->i == 3 && in_attr->i == 1) | |
4694 | _bfd_error_handler | |
5b914448 | 4695 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4696 | ibfd, obfd); |
4697 | else if (out_attr->i == 3 && in_attr->i == 2) | |
4698 | _bfd_error_handler | |
5b914448 | 4699 | (_("Warning: %B uses soft float, %B uses single-precision hard float"), |
3c7b9897 AM |
4700 | ibfd, obfd); |
4701 | else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3)) | |
34c8bcba JM |
4702 | _bfd_error_handler |
4703 | (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); | |
3c7b9897 | 4704 | else if (in_attr->i > 3) |
34c8bcba JM |
4705 | _bfd_error_handler |
4706 | (_("Warning: %B uses unknown floating point ABI %d"), ibfd, | |
c6e65352 | 4707 | in_attr->i); |
34c8bcba JM |
4708 | else |
4709 | _bfd_error_handler | |
4710 | (_("Warning: %B uses unknown floating point ABI %d"), obfd, | |
c6e65352 DJ |
4711 | out_attr->i); |
4712 | } | |
4713 | ||
4714 | /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and | |
4715 | merge non-conflicting ones. */ | |
4716 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; | |
4717 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; | |
4718 | if (in_attr->i != out_attr->i) | |
4719 | { | |
4720 | const char *in_abi = NULL, *out_abi = NULL; | |
4721 | ||
4722 | switch (in_attr->i) | |
4723 | { | |
4724 | case 1: in_abi = "generic"; break; | |
4725 | case 2: in_abi = "AltiVec"; break; | |
4726 | case 3: in_abi = "SPE"; break; | |
4727 | } | |
4728 | ||
4729 | switch (out_attr->i) | |
4730 | { | |
4731 | case 1: out_abi = "generic"; break; | |
4732 | case 2: out_abi = "AltiVec"; break; | |
4733 | case 3: out_abi = "SPE"; break; | |
4734 | } | |
4735 | ||
4736 | out_attr->type = 1; | |
4737 | if (out_attr->i == 0) | |
4738 | out_attr->i = in_attr->i; | |
4739 | else if (in_attr->i == 0) | |
4740 | ; | |
4741 | /* For now, allow generic to transition to AltiVec or SPE | |
4742 | without a warning. If GCC marked files with their stack | |
4743 | alignment and used don't-care markings for files which are | |
4744 | not affected by the vector ABI, we could warn about this | |
4745 | case too. */ | |
4746 | else if (out_attr->i == 1) | |
4747 | out_attr->i = in_attr->i; | |
4748 | else if (in_attr->i == 1) | |
4749 | ; | |
4750 | else if (in_abi == NULL) | |
4751 | _bfd_error_handler | |
4752 | (_("Warning: %B uses unknown vector ABI %d"), ibfd, | |
4753 | in_attr->i); | |
4754 | else if (out_abi == NULL) | |
4755 | _bfd_error_handler | |
4756 | (_("Warning: %B uses unknown vector ABI %d"), obfd, | |
4757 | in_attr->i); | |
4758 | else | |
4759 | _bfd_error_handler | |
4760 | (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""), | |
4761 | ibfd, obfd, in_abi, out_abi); | |
34c8bcba JM |
4762 | } |
4763 | ||
f82e0623 NF |
4764 | /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes |
4765 | and merge non-conflicting ones. */ | |
4766 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4767 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4768 | if (in_attr->i != out_attr->i) | |
4769 | { | |
4770 | out_attr->type = 1; | |
4771 | if (out_attr->i == 0) | |
4772 | out_attr->i = in_attr->i; | |
4773 | else if (in_attr->i == 0) | |
4774 | ; | |
4775 | else if (out_attr->i == 1 && in_attr->i == 2) | |
4776 | _bfd_error_handler | |
4777 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd); | |
4778 | else if (out_attr->i == 2 && in_attr->i == 1) | |
4779 | _bfd_error_handler | |
4780 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd); | |
4781 | else if (in_attr->i > 2) | |
4782 | _bfd_error_handler | |
4783 | (_("Warning: %B uses unknown small structure return convention %d"), ibfd, | |
4784 | in_attr->i); | |
4785 | else | |
4786 | _bfd_error_handler | |
4787 | (_("Warning: %B uses unknown small structure return convention %d"), obfd, | |
4788 | out_attr->i); | |
4789 | } | |
4790 | ||
34c8bcba JM |
4791 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
4792 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
4793 | ||
4794 | return TRUE; | |
4795 | } | |
4796 | ||
8853c3d3 AM |
4797 | /* Merge backend specific data from an object file to the output |
4798 | object file when linking. */ | |
4799 | ||
4800 | static bfd_boolean | |
4801 | ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4802 | { | |
4803 | flagword old_flags; | |
4804 | flagword new_flags; | |
4805 | bfd_boolean error; | |
4806 | ||
0c8d6e5c | 4807 | if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) |
8853c3d3 AM |
4808 | return TRUE; |
4809 | ||
cc643b88 | 4810 | /* Check if we have the same endianness. */ |
8853c3d3 AM |
4811 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
4812 | return FALSE; | |
4813 | ||
34c8bcba JM |
4814 | if (!ppc_elf_merge_obj_attributes (ibfd, obfd)) |
4815 | return FALSE; | |
4816 | ||
8853c3d3 AM |
4817 | new_flags = elf_elfheader (ibfd)->e_flags; |
4818 | old_flags = elf_elfheader (obfd)->e_flags; | |
4819 | if (!elf_flags_init (obfd)) | |
4820 | { | |
4821 | /* First call, no flags set. */ | |
4822 | elf_flags_init (obfd) = TRUE; | |
4823 | elf_elfheader (obfd)->e_flags = new_flags; | |
4824 | } | |
4825 | ||
4826 | /* Compatible flags are ok. */ | |
4827 | else if (new_flags == old_flags) | |
4828 | ; | |
4829 | ||
4830 | /* Incompatible flags. */ | |
4831 | else | |
4832 | { | |
4833 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib | |
4834 | to be linked with either. */ | |
4835 | error = FALSE; | |
4836 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 | |
4837 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
4838 | { | |
4839 | error = TRUE; | |
4840 | (*_bfd_error_handler) | |
4841 | (_("%B: compiled with -mrelocatable and linked with " | |
4842 | "modules compiled normally"), ibfd); | |
4843 | } | |
4844 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
4845 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
4846 | { | |
4847 | error = TRUE; | |
4848 | (*_bfd_error_handler) | |
4849 | (_("%B: compiled normally and linked with " | |
4850 | "modules compiled with -mrelocatable"), ibfd); | |
4851 | } | |
4852 | ||
4853 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
4854 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
4855 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
4856 | ||
4857 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
4858 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
4859 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
4860 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
4861 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
4862 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
4863 | ||
4864 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if | |
4865 | any module uses it. */ | |
4866 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); | |
4867 | ||
4868 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4869 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4870 | ||
4871 | /* Warn about any other mismatches. */ | |
4872 | if (new_flags != old_flags) | |
4873 | { | |
4874 | error = TRUE; | |
4875 | (*_bfd_error_handler) | |
4876 | (_("%B: uses different e_flags (0x%lx) fields " | |
4877 | "than previous modules (0x%lx)"), | |
4878 | ibfd, (long) new_flags, (long) old_flags); | |
4879 | } | |
4880 | ||
4881 | if (error) | |
4882 | { | |
4883 | bfd_set_error (bfd_error_bad_value); | |
4884 | return FALSE; | |
4885 | } | |
4886 | } | |
4887 | ||
4888 | return TRUE; | |
4889 | } | |
b9c361e0 JL |
4890 | |
4891 | static void | |
86c95733 AM |
4892 | ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *loc, |
4893 | bfd_vma value, | |
4894 | split16_format_type split16_format) | |
b9c361e0 JL |
4895 | |
4896 | { | |
86c95733 | 4897 | unsigned int insn, top5; |
b9c361e0 | 4898 | |
86c95733 AM |
4899 | insn = bfd_get_32 (output_bfd, loc); |
4900 | top5 = value & 0xf800; | |
4901 | top5 = top5 << (split16_format == split16a_type ? 9 : 5); | |
b9c361e0 | 4902 | insn |= top5; |
86c95733 AM |
4903 | insn |= value & 0x7ff; |
4904 | bfd_put_32 (output_bfd, insn, loc); | |
b9c361e0 JL |
4905 | } |
4906 | ||
8853c3d3 | 4907 | \f |
d7128ce4 AM |
4908 | /* Choose which PLT scheme to use, and set .plt flags appropriately. |
4909 | Returns -1 on error, 0 for old PLT, 1 for new PLT. */ | |
4910 | int | |
4911 | ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, | |
5446cbdf | 4912 | struct bfd_link_info *info) |
d7128ce4 AM |
4913 | { |
4914 | struct ppc_elf_link_hash_table *htab; | |
9d8504b1 | 4915 | flagword flags; |
d7128ce4 AM |
4916 | |
4917 | htab = ppc_elf_hash_table (info); | |
4a3dc543 RS |
4918 | |
4919 | if (htab->plt_type == PLT_UNSET) | |
016687f8 | 4920 | { |
b3874e1a AM |
4921 | struct elf_link_hash_entry *h; |
4922 | ||
5446cbdf | 4923 | if (htab->params->plt_style == PLT_OLD) |
016687f8 | 4924 | htab->plt_type = PLT_OLD; |
0e1862bb | 4925 | else if (bfd_link_pic (info) |
b3874e1a AM |
4926 | && htab->elf.dynamic_sections_created |
4927 | && (h = elf_link_hash_lookup (&htab->elf, "_mcount", | |
4928 | FALSE, FALSE, TRUE)) != NULL | |
4929 | && (h->type == STT_FUNC | |
4930 | || h->needs_plt) | |
4931 | && h->ref_regular | |
4932 | && !(SYMBOL_CALLS_LOCAL (info, h) | |
4933 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4934 | && h->root.type == bfd_link_hash_undefweak))) | |
4935 | { | |
4936 | /* Profiling of shared libs (and pies) is not supported with | |
4937 | secure plt, because ppc32 does profiling before a | |
4938 | function prologue and a secure plt pic call stubs needs | |
4939 | r30 to be set up. */ | |
4940 | htab->plt_type = PLT_OLD; | |
4941 | } | |
016687f8 AM |
4942 | else |
4943 | { | |
4944 | bfd *ibfd; | |
5446cbdf | 4945 | enum ppc_elf_plt_type plt_type = htab->params->plt_style; |
016687f8 AM |
4946 | |
4947 | /* Look through the reloc flags left by ppc_elf_check_relocs. | |
4948 | Use the old style bss plt if a file makes plt calls | |
4949 | without using the new relocs, and if ld isn't given | |
4950 | --secure-plt and we never see REL16 relocs. */ | |
4951 | if (plt_type == PLT_UNSET) | |
4952 | plt_type = PLT_OLD; | |
c72f2fb2 | 4953 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link.next) |
0c8d6e5c | 4954 | if (is_ppc_elf (ibfd)) |
016687f8 AM |
4955 | { |
4956 | if (ppc_elf_tdata (ibfd)->has_rel16) | |
4957 | plt_type = PLT_NEW; | |
4958 | else if (ppc_elf_tdata (ibfd)->makes_plt_call) | |
4959 | { | |
4960 | plt_type = PLT_OLD; | |
4961 | htab->old_bfd = ibfd; | |
4962 | break; | |
4963 | } | |
4964 | } | |
4965 | htab->plt_type = plt_type; | |
4966 | } | |
4967 | } | |
5446cbdf | 4968 | if (htab->plt_type == PLT_OLD && htab->params->plt_style == PLT_NEW) |
b3874e1a AM |
4969 | { |
4970 | if (htab->old_bfd != NULL) | |
4971 | info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"), | |
4972 | htab->old_bfd); | |
4973 | else | |
4974 | info->callbacks->einfo (_("%P: bss-plt forced by profiling\n")); | |
4975 | } | |
d7128ce4 | 4976 | |
4a3dc543 | 4977 | BFD_ASSERT (htab->plt_type != PLT_VXWORKS); |
9d8504b1 | 4978 | |
4a3dc543 | 4979 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
4980 | { |
4981 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
4982 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
86b9da88 AM |
4983 | |
4984 | /* The new PLT is a loaded section. */ | |
4985 | if (htab->plt != NULL | |
4986 | && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) | |
4987 | return -1; | |
4988 | ||
4989 | /* The new GOT is not executable. */ | |
4990 | if (htab->got != NULL | |
4991 | && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) | |
4992 | return -1; | |
d7128ce4 AM |
4993 | } |
4994 | else | |
4995 | { | |
4996 | /* Stop an unused .glink section from affecting .text alignment. */ | |
86b9da88 AM |
4997 | if (htab->glink != NULL |
4998 | && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) | |
4999 | return -1; | |
d7128ce4 | 5000 | } |
4a3dc543 | 5001 | return htab->plt_type == PLT_NEW; |
d7128ce4 AM |
5002 | } |
5003 | \f | |
25dbc73a AM |
5004 | /* Return the section that should be marked against GC for a given |
5005 | relocation. */ | |
586119b3 | 5006 | |
25dbc73a AM |
5007 | static asection * |
5008 | ppc_elf_gc_mark_hook (asection *sec, | |
07adf181 | 5009 | struct bfd_link_info *info, |
25dbc73a AM |
5010 | Elf_Internal_Rela *rel, |
5011 | struct elf_link_hash_entry *h, | |
5012 | Elf_Internal_Sym *sym) | |
5013 | { | |
5014 | if (h != NULL) | |
07adf181 AM |
5015 | switch (ELF32_R_TYPE (rel->r_info)) |
5016 | { | |
5017 | case R_PPC_GNU_VTINHERIT: | |
5018 | case R_PPC_GNU_VTENTRY: | |
5019 | return NULL; | |
5020 | } | |
5021 | ||
5022 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
25dbc73a | 5023 | } |
a876ecf9 | 5024 | |
25dbc73a AM |
5025 | /* Update the got, plt and dynamic reloc reference counts for the |
5026 | section being removed. */ | |
5027 | ||
5028 | static bfd_boolean | |
5029 | ppc_elf_gc_sweep_hook (bfd *abfd, | |
5030 | struct bfd_link_info *info, | |
5031 | asection *sec, | |
5032 | const Elf_Internal_Rela *relocs) | |
5033 | { | |
5034 | struct ppc_elf_link_hash_table *htab; | |
5035 | Elf_Internal_Shdr *symtab_hdr; | |
5036 | struct elf_link_hash_entry **sym_hashes; | |
5037 | bfd_signed_vma *local_got_refcounts; | |
5038 | const Elf_Internal_Rela *rel, *relend; | |
a6aa5195 | 5039 | asection *got2; |
25dbc73a | 5040 | |
0e1862bb | 5041 | if (bfd_link_relocatable (info)) |
7dda2462 TG |
5042 | return TRUE; |
5043 | ||
c87b5a93 AM |
5044 | if ((sec->flags & SEC_ALLOC) == 0) |
5045 | return TRUE; | |
5046 | ||
25dbc73a AM |
5047 | elf_section_data (sec)->local_dynrel = NULL; |
5048 | ||
5049 | htab = ppc_elf_hash_table (info); | |
0ffa91dd | 5050 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a AM |
5051 | sym_hashes = elf_sym_hashes (abfd); |
5052 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a6aa5195 | 5053 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
5054 | |
5055 | relend = relocs + sec->reloc_count; | |
5056 | for (rel = relocs; rel < relend; rel++) | |
5057 | { | |
5058 | unsigned long r_symndx; | |
5059 | enum elf_ppc_reloc_type r_type; | |
5060 | struct elf_link_hash_entry *h = NULL; | |
5061 | ||
5062 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5063 | if (r_symndx >= symtab_hdr->sh_info) | |
a876ecf9 | 5064 | { |
6061a67d | 5065 | struct elf_dyn_relocs **pp, *p; |
25dbc73a AM |
5066 | struct ppc_elf_link_hash_entry *eh; |
5067 | ||
5068 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5069 | while (h->root.type == bfd_link_hash_indirect | |
5070 | || h->root.type == bfd_link_hash_warning) | |
5071 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5072 | eh = (struct ppc_elf_link_hash_entry *) h; | |
5073 | ||
5074 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
5075 | if (p->sec == sec) | |
5076 | { | |
5077 | /* Everything must go for SEC. */ | |
5078 | *pp = p->next; | |
5079 | break; | |
5080 | } | |
a876ecf9 | 5081 | } |
ee05f2fe | 5082 | |
25dbc73a | 5083 | r_type = ELF32_R_TYPE (rel->r_info); |
de972ffa AM |
5084 | if (!htab->is_vxworks |
5085 | && h == NULL | |
5086 | && local_got_refcounts != NULL | |
0e1862bb | 5087 | && (!bfd_link_pic (info) |
de972ffa | 5088 | || is_branch_reloc (r_type))) |
e054468f | 5089 | { |
de972ffa AM |
5090 | struct plt_entry **local_plt = (struct plt_entry **) |
5091 | (local_got_refcounts + symtab_hdr->sh_info); | |
5092 | char *local_got_tls_masks = (char *) | |
5093 | (local_plt + symtab_hdr->sh_info); | |
5094 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
e054468f | 5095 | { |
de972ffa | 5096 | struct plt_entry **ifunc = local_plt + r_symndx; |
a877a2b6 AM |
5097 | bfd_vma addend = 0; |
5098 | struct plt_entry *ent; | |
5099 | ||
0e1862bb | 5100 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5101 | addend = rel->r_addend; |
5102 | ent = find_plt_ent (ifunc, got2, addend); | |
e054468f AM |
5103 | if (ent->plt.refcount > 0) |
5104 | ent->plt.refcount -= 1; | |
5105 | continue; | |
5106 | } | |
5107 | } | |
5108 | ||
25dbc73a | 5109 | switch (r_type) |
ee05f2fe | 5110 | { |
25dbc73a AM |
5111 | case R_PPC_GOT_TLSLD16: |
5112 | case R_PPC_GOT_TLSLD16_LO: | |
5113 | case R_PPC_GOT_TLSLD16_HI: | |
5114 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
5115 | case R_PPC_GOT_TLSGD16: |
5116 | case R_PPC_GOT_TLSGD16_LO: | |
5117 | case R_PPC_GOT_TLSGD16_HI: | |
5118 | case R_PPC_GOT_TLSGD16_HA: | |
5119 | case R_PPC_GOT_TPREL16: | |
5120 | case R_PPC_GOT_TPREL16_LO: | |
5121 | case R_PPC_GOT_TPREL16_HI: | |
5122 | case R_PPC_GOT_TPREL16_HA: | |
5123 | case R_PPC_GOT_DTPREL16: | |
5124 | case R_PPC_GOT_DTPREL16_LO: | |
5125 | case R_PPC_GOT_DTPREL16_HI: | |
5126 | case R_PPC_GOT_DTPREL16_HA: | |
5127 | case R_PPC_GOT16: | |
5128 | case R_PPC_GOT16_LO: | |
5129 | case R_PPC_GOT16_HI: | |
5130 | case R_PPC_GOT16_HA: | |
5131 | if (h != NULL) | |
ee05f2fe | 5132 | { |
25dbc73a AM |
5133 | if (h->got.refcount > 0) |
5134 | h->got.refcount--; | |
0e1862bb | 5135 | if (!bfd_link_pic (info)) |
91e21fb7 AM |
5136 | { |
5137 | struct plt_entry *ent; | |
5138 | ||
5139 | ent = find_plt_ent (&h->plt.plist, NULL, 0); | |
32af9f6e | 5140 | if (ent != NULL && ent->plt.refcount > 0) |
91e21fb7 AM |
5141 | ent->plt.refcount -= 1; |
5142 | } | |
ee05f2fe | 5143 | } |
25dbc73a AM |
5144 | else if (local_got_refcounts != NULL) |
5145 | { | |
5146 | if (local_got_refcounts[r_symndx] > 0) | |
5147 | local_got_refcounts[r_symndx]--; | |
5148 | } | |
5149 | break; | |
ee05f2fe | 5150 | |
25dbc73a AM |
5151 | case R_PPC_REL24: |
5152 | case R_PPC_REL14: | |
5153 | case R_PPC_REL14_BRTAKEN: | |
5154 | case R_PPC_REL14_BRNTAKEN: | |
5155 | case R_PPC_REL32: | |
3b36f7e6 | 5156 | if (h == NULL || h == htab->elf.hgot) |
25dbc73a AM |
5157 | break; |
5158 | /* Fall thru */ | |
ee05f2fe | 5159 | |
25dbc73a AM |
5160 | case R_PPC_ADDR32: |
5161 | case R_PPC_ADDR24: | |
5162 | case R_PPC_ADDR16: | |
5163 | case R_PPC_ADDR16_LO: | |
5164 | case R_PPC_ADDR16_HI: | |
5165 | case R_PPC_ADDR16_HA: | |
5166 | case R_PPC_ADDR14: | |
5167 | case R_PPC_ADDR14_BRTAKEN: | |
5168 | case R_PPC_ADDR14_BRNTAKEN: | |
5169 | case R_PPC_UADDR32: | |
5170 | case R_PPC_UADDR16: | |
0e1862bb | 5171 | if (bfd_link_pic (info)) |
87538722 AM |
5172 | break; |
5173 | ||
25dbc73a AM |
5174 | case R_PPC_PLT32: |
5175 | case R_PPC_PLTREL24: | |
87538722 | 5176 | case R_PPC_PLTREL32: |
25dbc73a AM |
5177 | case R_PPC_PLT16_LO: |
5178 | case R_PPC_PLT16_HI: | |
5179 | case R_PPC_PLT16_HA: | |
5180 | if (h != NULL) | |
5181 | { | |
a877a2b6 AM |
5182 | bfd_vma addend = 0; |
5183 | struct plt_entry *ent; | |
5184 | ||
0e1862bb | 5185 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
a877a2b6 AM |
5186 | addend = rel->r_addend; |
5187 | ent = find_plt_ent (&h->plt.plist, got2, addend); | |
32af9f6e | 5188 | if (ent != NULL && ent->plt.refcount > 0) |
a6aa5195 | 5189 | ent->plt.refcount -= 1; |
25dbc73a AM |
5190 | } |
5191 | break; | |
ee05f2fe | 5192 | |
25dbc73a AM |
5193 | default: |
5194 | break; | |
5195 | } | |
7fce784e | 5196 | } |
7fce784e AS |
5197 | return TRUE; |
5198 | } | |
25dbc73a | 5199 | \f |
3a71aa26 AM |
5200 | /* Set plt output section type, htab->tls_get_addr, and call the |
5201 | generic ELF tls_setup function. */ | |
7fce784e | 5202 | |
25dbc73a | 5203 | asection * |
5446cbdf | 5204 | ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) |
7fce784e | 5205 | { |
25dbc73a | 5206 | struct ppc_elf_link_hash_table *htab; |
7fce784e | 5207 | |
25dbc73a | 5208 | htab = ppc_elf_hash_table (info); |
a7f2871e AM |
5209 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
5210 | FALSE, FALSE, TRUE); | |
f01f1741 AM |
5211 | if (htab->plt_type != PLT_NEW) |
5212 | htab->params->no_tls_get_addr_opt = TRUE; | |
5213 | ||
5446cbdf | 5214 | if (!htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
5215 | { |
5216 | struct elf_link_hash_entry *opt, *tga; | |
5217 | opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
5218 | FALSE, FALSE, TRUE); | |
5219 | if (opt != NULL | |
5220 | && (opt->root.type == bfd_link_hash_defined | |
5221 | || opt->root.type == bfd_link_hash_defweak)) | |
5222 | { | |
5223 | /* If glibc supports an optimized __tls_get_addr call stub, | |
5224 | signalled by the presence of __tls_get_addr_opt, and we'll | |
5225 | be calling __tls_get_addr via a plt call stub, then | |
5226 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
5227 | tga = htab->tls_get_addr; | |
5228 | if (htab->elf.dynamic_sections_created | |
5229 | && tga != NULL | |
5230 | && (tga->type == STT_FUNC | |
5231 | || tga->needs_plt) | |
5232 | && !(SYMBOL_CALLS_LOCAL (info, tga) | |
5233 | || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT | |
5234 | && tga->root.type == bfd_link_hash_undefweak))) | |
5235 | { | |
5236 | struct plt_entry *ent; | |
32af9f6e AM |
5237 | for (ent = tga->plt.plist; ent != NULL; ent = ent->next) |
5238 | if (ent->plt.refcount > 0) | |
5239 | break; | |
5240 | if (ent != NULL) | |
a7f2871e AM |
5241 | { |
5242 | tga->root.type = bfd_link_hash_indirect; | |
5243 | tga->root.u.i.link = &opt->root; | |
5244 | ppc_elf_copy_indirect_symbol (info, opt, tga); | |
3bd43ebc | 5245 | opt->forced_local = 0; |
a7f2871e AM |
5246 | if (opt->dynindx != -1) |
5247 | { | |
5248 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
5249 | opt->dynindx = -1; | |
5250 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
5251 | opt->dynstr_index); | |
5252 | if (!bfd_elf_link_record_dynamic_symbol (info, opt)) | |
5253 | return FALSE; | |
5254 | } | |
5255 | htab->tls_get_addr = opt; | |
5256 | } | |
5257 | } | |
5258 | } | |
5259 | else | |
5446cbdf | 5260 | htab->params->no_tls_get_addr_opt = TRUE; |
a7f2871e | 5261 | } |
4a3dc543 | 5262 | if (htab->plt_type == PLT_NEW |
d7128ce4 AM |
5263 | && htab->plt != NULL |
5264 | && htab->plt->output_section != NULL) | |
5265 | { | |
5266 | elf_section_type (htab->plt->output_section) = SHT_PROGBITS; | |
5267 | elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; | |
5268 | } | |
5269 | ||
25dbc73a | 5270 | return _bfd_elf_tls_setup (obfd, info); |
7fce784e AS |
5271 | } |
5272 | ||
3a71aa26 AM |
5273 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
5274 | HASH. */ | |
5275 | ||
5276 | static bfd_boolean | |
5277 | branch_reloc_hash_match (const bfd *ibfd, | |
5278 | const Elf_Internal_Rela *rel, | |
5279 | const struct elf_link_hash_entry *hash) | |
5280 | { | |
5281 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
5282 | enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); | |
5283 | unsigned int r_symndx = ELF32_R_SYM (rel->r_info); | |
5284 | ||
e054468f | 5285 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
3a71aa26 AM |
5286 | { |
5287 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5288 | struct elf_link_hash_entry *h; | |
5289 | ||
5290 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5291 | while (h->root.type == bfd_link_hash_indirect | |
5292 | || h->root.type == bfd_link_hash_warning) | |
5293 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5294 | if (h == hash) | |
5295 | return TRUE; | |
5296 | } | |
5297 | return FALSE; | |
5298 | } | |
5299 | ||
25dbc73a AM |
5300 | /* Run through all the TLS relocs looking for optimization |
5301 | opportunities. */ | |
252b5132 | 5302 | |
25dbc73a AM |
5303 | bfd_boolean |
5304 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, | |
5305 | struct bfd_link_info *info) | |
252b5132 | 5306 | { |
7fce784e | 5307 | bfd *ibfd; |
25dbc73a AM |
5308 | asection *sec; |
5309 | struct ppc_elf_link_hash_table *htab; | |
b7fcf6f6 | 5310 | int pass; |
252b5132 | 5311 | |
3cbc1e5e | 5312 | if (!bfd_link_executable (info)) |
25dbc73a | 5313 | return TRUE; |
252b5132 | 5314 | |
7619e7c7 | 5315 | htab = ppc_elf_hash_table (info); |
663a1470 AM |
5316 | if (htab == NULL) |
5317 | return FALSE; | |
5318 | ||
b7fcf6f6 AM |
5319 | /* Make two passes through the relocs. First time check that tls |
5320 | relocs involved in setting up a tls_get_addr call are indeed | |
663a1470 AM |
5321 | followed by such a call. If they are not, don't do any tls |
5322 | optimization. On the second pass twiddle tls_mask flags to | |
5323 | notify relocate_section that optimization can be done, and | |
5324 | adjust got and plt refcounts. */ | |
b7fcf6f6 | 5325 | for (pass = 0; pass < 2; ++pass) |
c72f2fb2 | 5326 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
b7fcf6f6 AM |
5327 | { |
5328 | Elf_Internal_Sym *locsyms = NULL; | |
0ffa91dd | 5329 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
32af9f6e | 5330 | asection *got2 = bfd_get_section_by_name (ibfd, ".got2"); |
7619e7c7 | 5331 | |
b7fcf6f6 AM |
5332 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
5333 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5334 | { | |
5335 | Elf_Internal_Rela *relstart, *rel, *relend; | |
663a1470 | 5336 | int expecting_tls_get_addr = 0; |
252b5132 | 5337 | |
b7fcf6f6 AM |
5338 | /* Read the relocations. */ |
5339 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
5340 | info->keep_memory); | |
5341 | if (relstart == NULL) | |
5342 | return FALSE; | |
7619e7c7 | 5343 | |
b7fcf6f6 AM |
5344 | relend = relstart + sec->reloc_count; |
5345 | for (rel = relstart; rel < relend; rel++) | |
5346 | { | |
5347 | enum elf_ppc_reloc_type r_type; | |
5348 | unsigned long r_symndx; | |
5349 | struct elf_link_hash_entry *h = NULL; | |
5350 | char *tls_mask; | |
5351 | char tls_set, tls_clear; | |
5352 | bfd_boolean is_local; | |
b7fcf6f6 AM |
5353 | bfd_signed_vma *got_count; |
5354 | ||
5355 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5356 | if (r_symndx >= symtab_hdr->sh_info) | |
5357 | { | |
5358 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 5359 | |
b7fcf6f6 AM |
5360 | sym_hashes = elf_sym_hashes (ibfd); |
5361 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5362 | while (h->root.type == bfd_link_hash_indirect | |
5363 | || h->root.type == bfd_link_hash_warning) | |
5364 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5365 | } | |
7619e7c7 | 5366 | |
b7fcf6f6 AM |
5367 | is_local = FALSE; |
5368 | if (h == NULL | |
5369 | || !h->def_dynamic) | |
5370 | is_local = TRUE; | |
7619e7c7 | 5371 | |
b7fcf6f6 | 5372 | r_type = ELF32_R_TYPE (rel->r_info); |
663a1470 AM |
5373 | /* If this section has old-style __tls_get_addr calls |
5374 | without marker relocs, then check that each | |
5375 | __tls_get_addr call reloc is preceded by a reloc | |
5376 | that conceivably belongs to the __tls_get_addr arg | |
5377 | setup insn. If we don't find matching arg setup | |
5378 | relocs, don't do any tls optimization. */ | |
5379 | if (pass == 0 | |
5380 | && sec->has_tls_get_addr_call | |
5381 | && h != NULL | |
5382 | && h == htab->tls_get_addr | |
5383 | && !expecting_tls_get_addr | |
5384 | && is_branch_reloc (r_type)) | |
5385 | { | |
25f53a85 | 5386 | info->callbacks->minfo ("%H __tls_get_addr lost arg, " |
663a1470 AM |
5387 | "TLS optimization disabled\n", |
5388 | ibfd, sec, rel->r_offset); | |
5389 | if (elf_section_data (sec)->relocs != relstart) | |
5390 | free (relstart); | |
5391 | return TRUE; | |
5392 | } | |
5393 | ||
5394 | expecting_tls_get_addr = 0; | |
b7fcf6f6 AM |
5395 | switch (r_type) |
5396 | { | |
5397 | case R_PPC_GOT_TLSLD16: | |
5398 | case R_PPC_GOT_TLSLD16_LO: | |
5399 | expecting_tls_get_addr = 1; | |
5400 | /* Fall thru */ | |
5401 | ||
5402 | case R_PPC_GOT_TLSLD16_HI: | |
5403 | case R_PPC_GOT_TLSLD16_HA: | |
5404 | /* These relocs should never be against a symbol | |
5405 | defined in a shared lib. Leave them alone if | |
5406 | that turns out to be the case. */ | |
5407 | if (!is_local) | |
5408 | continue; | |
5409 | ||
5410 | /* LD -> LE */ | |
5411 | tls_set = 0; | |
5412 | tls_clear = TLS_LD; | |
5413 | break; | |
5414 | ||
5415 | case R_PPC_GOT_TLSGD16: | |
5416 | case R_PPC_GOT_TLSGD16_LO: | |
5417 | expecting_tls_get_addr = 1; | |
5418 | /* Fall thru */ | |
5419 | ||
5420 | case R_PPC_GOT_TLSGD16_HI: | |
5421 | case R_PPC_GOT_TLSGD16_HA: | |
5422 | if (is_local) | |
5423 | /* GD -> LE */ | |
5424 | tls_set = 0; | |
5425 | else | |
5426 | /* GD -> IE */ | |
5427 | tls_set = TLS_TLS | TLS_TPRELGD; | |
5428 | tls_clear = TLS_GD; | |
5429 | break; | |
5430 | ||
5431 | case R_PPC_GOT_TPREL16: | |
5432 | case R_PPC_GOT_TPREL16_LO: | |
5433 | case R_PPC_GOT_TPREL16_HI: | |
5434 | case R_PPC_GOT_TPREL16_HA: | |
5435 | if (is_local) | |
5436 | { | |
5437 | /* IE -> LE */ | |
5438 | tls_set = 0; | |
5439 | tls_clear = TLS_TPREL; | |
5440 | break; | |
5441 | } | |
5442 | else | |
5443 | continue; | |
5444 | ||
32af9f6e AM |
5445 | case R_PPC_TLSGD: |
5446 | case R_PPC_TLSLD: | |
5447 | expecting_tls_get_addr = 2; | |
5448 | tls_set = 0; | |
5449 | tls_clear = 0; | |
5450 | break; | |
5451 | ||
b7fcf6f6 | 5452 | default: |
25dbc73a | 5453 | continue; |
b7fcf6f6 | 5454 | } |
25dbc73a | 5455 | |
b7fcf6f6 AM |
5456 | if (pass == 0) |
5457 | { | |
727fc41e | 5458 | if (!expecting_tls_get_addr |
32af9f6e AM |
5459 | || (expecting_tls_get_addr == 1 |
5460 | && !sec->has_tls_get_addr_call)) | |
b7fcf6f6 | 5461 | continue; |
25dbc73a | 5462 | |
3a71aa26 AM |
5463 | if (rel + 1 < relend |
5464 | && branch_reloc_hash_match (ibfd, rel + 1, | |
5465 | htab->tls_get_addr)) | |
5466 | continue; | |
25dbc73a | 5467 | |
b7fcf6f6 AM |
5468 | /* Uh oh, we didn't find the expected call. We |
5469 | could just mark this symbol to exclude it | |
5470 | from tls optimization but it's safer to skip | |
663a1470 | 5471 | the entire optimization. */ |
25f53a85 | 5472 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
663a1470 AM |
5473 | "TLS optimization disabled\n"), |
5474 | ibfd, sec, rel->r_offset); | |
5475 | if (elf_section_data (sec)->relocs != relstart) | |
5476 | free (relstart); | |
5477 | return TRUE; | |
b7fcf6f6 | 5478 | } |
25dbc73a | 5479 | |
32af9f6e AM |
5480 | if (expecting_tls_get_addr) |
5481 | { | |
5482 | struct plt_entry *ent; | |
5483 | bfd_vma addend = 0; | |
5484 | ||
0e1862bb | 5485 | if (bfd_link_pic (info) |
32af9f6e AM |
5486 | && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24) |
5487 | addend = rel[1].r_addend; | |
5488 | ent = find_plt_ent (&htab->tls_get_addr->plt.plist, | |
5489 | got2, addend); | |
5490 | if (ent != NULL && ent->plt.refcount > 0) | |
5491 | ent->plt.refcount -= 1; | |
5492 | ||
5493 | if (expecting_tls_get_addr == 2) | |
5494 | continue; | |
5495 | } | |
5496 | ||
b7fcf6f6 AM |
5497 | if (h != NULL) |
5498 | { | |
5499 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
5500 | got_count = &h->got.refcount; | |
5501 | } | |
5502 | else | |
5503 | { | |
b7fcf6f6 | 5504 | bfd_signed_vma *lgot_refs; |
e054468f | 5505 | struct plt_entry **local_plt; |
b7fcf6f6 | 5506 | char *lgot_masks; |
25dbc73a | 5507 | |
b7fcf6f6 AM |
5508 | if (locsyms == NULL) |
5509 | { | |
5510 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5511 | if (locsyms == NULL) | |
5512 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5513 | symtab_hdr->sh_info, | |
5514 | 0, NULL, NULL, NULL); | |
5515 | if (locsyms == NULL) | |
5516 | { | |
5517 | if (elf_section_data (sec)->relocs != relstart) | |
5518 | free (relstart); | |
5519 | return FALSE; | |
5520 | } | |
5521 | } | |
b7fcf6f6 AM |
5522 | lgot_refs = elf_local_got_refcounts (ibfd); |
5523 | if (lgot_refs == NULL) | |
5524 | abort (); | |
e054468f AM |
5525 | local_plt = (struct plt_entry **) |
5526 | (lgot_refs + symtab_hdr->sh_info); | |
5527 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
b7fcf6f6 AM |
5528 | tls_mask = &lgot_masks[r_symndx]; |
5529 | got_count = &lgot_refs[r_symndx]; | |
5530 | } | |
25dbc73a | 5531 | |
b7fcf6f6 AM |
5532 | if (tls_set == 0) |
5533 | { | |
5534 | /* We managed to get rid of a got entry. */ | |
5535 | if (*got_count > 0) | |
5536 | *got_count -= 1; | |
5537 | } | |
25dbc73a | 5538 | |
b7fcf6f6 AM |
5539 | *tls_mask |= tls_set; |
5540 | *tls_mask &= ~tls_clear; | |
5541 | } | |
25dbc73a | 5542 | |
b7fcf6f6 AM |
5543 | if (elf_section_data (sec)->relocs != relstart) |
5544 | free (relstart); | |
5545 | } | |
5546 | ||
5547 | if (locsyms != NULL | |
5548 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
5549 | { | |
5550 | if (!info->keep_memory) | |
5551 | free (locsyms); | |
5552 | else | |
5553 | symtab_hdr->contents = (unsigned char *) locsyms; | |
5554 | } | |
5555 | } | |
25dbc73a AM |
5556 | return TRUE; |
5557 | } | |
5558 | \f | |
625af618 AM |
5559 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
5560 | ||
5561 | static bfd_boolean | |
5562 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
5563 | { | |
6061a67d | 5564 | struct elf_dyn_relocs *p; |
625af618 AM |
5565 | |
5566 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
5567 | { | |
5568 | asection *s = p->sec->output_section; | |
5569 | ||
5570 | if (s != NULL | |
5571 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
5572 | == (SEC_READONLY | SEC_ALLOC))) | |
5573 | return TRUE; | |
5574 | } | |
5575 | return FALSE; | |
5576 | } | |
5577 | ||
25dbc73a AM |
5578 | /* Adjust a symbol defined by a dynamic object and referenced by a |
5579 | regular object. The current definition is in some section of the | |
5580 | dynamic object, but we're not including those sections. We have to | |
5581 | change the definition to something the rest of the link can | |
5582 | understand. */ | |
7fce784e | 5583 | |
25dbc73a AM |
5584 | static bfd_boolean |
5585 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
5586 | struct elf_link_hash_entry *h) | |
5587 | { | |
5588 | struct ppc_elf_link_hash_table *htab; | |
5589 | asection *s; | |
7fce784e | 5590 | |
25dbc73a AM |
5591 | #ifdef DEBUG |
5592 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", | |
5593 | h->root.root.string); | |
5594 | #endif | |
252b5132 | 5595 | |
25dbc73a AM |
5596 | /* Make sure we know what is going on here. */ |
5597 | htab = ppc_elf_hash_table (info); | |
5598 | BFD_ASSERT (htab->elf.dynobj != NULL | |
5599 | && (h->needs_plt | |
91e21fb7 | 5600 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5601 | || h->u.weakdef != NULL |
5602 | || (h->def_dynamic | |
5603 | && h->ref_regular | |
5604 | && !h->def_regular))); | |
252b5132 | 5605 | |
25dbc73a AM |
5606 | /* Deal with function syms. */ |
5607 | if (h->type == STT_FUNC | |
e054468f | 5608 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5609 | || h->needs_plt) |
5610 | { | |
5611 | /* Clear procedure linkage table information for any symbol that | |
5612 | won't need a .plt entry. */ | |
a6aa5195 AM |
5613 | struct plt_entry *ent; |
5614 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5615 | if (ent->plt.refcount > 0) | |
5616 | break; | |
5617 | if (ent == NULL | |
e054468f AM |
5618 | || (h->type != STT_GNU_IFUNC |
5619 | && (SYMBOL_CALLS_LOCAL (info, h) | |
5620 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5621 | && h->root.type == bfd_link_hash_undefweak)))) | |
252b5132 | 5622 | { |
25dbc73a | 5623 | /* A PLT entry is not required/allowed when: |
252b5132 | 5624 | |
25dbc73a AM |
5625 | 1. We are not using ld.so; because then the PLT entry |
5626 | can't be set up, so we can't use one. In this case, | |
5627 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 5628 | |
25dbc73a AM |
5629 | 2. GC has rendered the entry unused. |
5630 | ||
5631 | 3. We know for certain that a call to this symbol | |
5632 | will go to this object, or will remain undefined. */ | |
a6aa5195 | 5633 | h->plt.plist = NULL; |
25dbc73a | 5634 | h->needs_plt = 0; |
d1eca1e4 | 5635 | h->pointer_equality_needed = 0; |
25dbc73a | 5636 | } |
625af618 AM |
5637 | else |
5638 | { | |
d1eca1e4 AM |
5639 | /* Taking a function's address in a read/write section |
5640 | doesn't require us to define the function symbol in the | |
1009ef28 | 5641 | executable on a plt call stub. A dynamic reloc can |
d1eca1e4 AM |
5642 | be used instead. */ |
5643 | if (h->pointer_equality_needed | |
1009ef28 AM |
5644 | && h->type != STT_GNU_IFUNC |
5645 | && !htab->is_vxworks | |
5646 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
d1eca1e4 AM |
5647 | && !readonly_dynrelocs (h)) |
5648 | { | |
5649 | h->pointer_equality_needed = 0; | |
5650 | h->non_got_ref = 0; | |
5651 | } | |
5652 | ||
25f23106 AM |
5653 | /* After adjust_dynamic_symbol, non_got_ref set in the |
5654 | non-shared case means that we have allocated space in | |
5655 | .dynbss for the symbol and thus dyn_relocs for this | |
5656 | symbol should be discarded. | |
625af618 AM |
5657 | If we get here we know we are making a PLT entry for this |
5658 | symbol, and in an executable we'd normally resolve | |
5659 | relocations against this symbol to the PLT entry. Allow | |
5660 | dynamic relocs if the reference is weak, and the dynamic | |
5661 | relocs will not cause text relocation. */ | |
d1eca1e4 AM |
5662 | else if (!h->ref_regular_nonweak |
5663 | && h->non_got_ref | |
5664 | && h->type != STT_GNU_IFUNC | |
5665 | && !htab->is_vxworks | |
5666 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
5667 | && !readonly_dynrelocs (h)) | |
625af618 AM |
5668 | h->non_got_ref = 0; |
5669 | } | |
d3e454b9 | 5670 | h->protected_def = 0; |
25dbc73a | 5671 | return TRUE; |
252b5132 | 5672 | } |
25dbc73a | 5673 | else |
a6aa5195 | 5674 | h->plt.plist = NULL; |
252b5132 | 5675 | |
25dbc73a AM |
5676 | /* If this is a weak symbol, and there is a real definition, the |
5677 | processor independent code will have arranged for us to see the | |
5678 | real definition first, and we can just use the same value. */ | |
5679 | if (h->u.weakdef != NULL) | |
252b5132 | 5680 | { |
25dbc73a AM |
5681 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5682 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5683 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5684 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
5685 | if (ELIMINATE_COPY_RELOCS) | |
5686 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
5687 | return TRUE; | |
5688 | } | |
dc810e39 | 5689 | |
25dbc73a AM |
5690 | /* This is a reference to a symbol defined by a dynamic object which |
5691 | is not a function. */ | |
252b5132 | 5692 | |
25dbc73a AM |
5693 | /* If we are creating a shared library, we must presume that the |
5694 | only references to the symbol are via the global offset table. | |
5695 | For such cases we need not do anything here; the relocations will | |
5696 | be handled correctly by relocate_section. */ | |
0e1862bb | 5697 | if (bfd_link_pic (info)) |
d3e454b9 AM |
5698 | { |
5699 | h->protected_def = 0; | |
5700 | return TRUE; | |
5701 | } | |
252b5132 | 5702 | |
25dbc73a AM |
5703 | /* If there are no references to this symbol that do not use the |
5704 | GOT, we don't need to generate a copy reloc. */ | |
5705 | if (!h->non_got_ref) | |
d3e454b9 AM |
5706 | { |
5707 | h->protected_def = 0; | |
5708 | return TRUE; | |
5709 | } | |
5710 | ||
5711 | /* Protected variables do not work with .dynbss. The copy in | |
5712 | .dynbss won't be used by the shared library with the protected | |
5713 | definition for the variable. Editing to PIC, or text relocations | |
5714 | are preferable to an incorrect program. */ | |
5715 | if (h->protected_def) | |
5716 | { | |
5717 | if (ELIMINATE_COPY_RELOCS | |
5718 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
5719 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
5720 | && htab->params->pic_fixup == 0 | |
5721 | && info->disable_target_specific_optimizations <= 1) | |
5722 | htab->params->pic_fixup = 1; | |
5723 | h->non_got_ref = 0; | |
5724 | return TRUE; | |
5725 | } | |
25dbc73a | 5726 | |
a127494f AM |
5727 | /* If -z nocopyreloc was given, we won't generate them either. */ |
5728 | if (info->nocopyreloc) | |
5729 | { | |
5730 | h->non_got_ref = 0; | |
5731 | return TRUE; | |
5732 | } | |
5733 | ||
cfd2c773 NS |
5734 | /* If we didn't find any dynamic relocs in read-only sections, then |
5735 | we'll be keeping the dynamic relocs and avoiding the copy reloc. | |
5736 | We can't do this if there are any small data relocations. This | |
5737 | doesn't work on VxWorks, where we can not have dynamic | |
5738 | relocations (other than copy and jump slot relocations) in an | |
5739 | executable. */ | |
4dc4a9a5 | 5740 | if (ELIMINATE_COPY_RELOCS |
cfd2c773 | 5741 | && !ppc_elf_hash_entry (h)->has_sda_refs |
625af618 AM |
5742 | && !htab->is_vxworks |
5743 | && !h->def_regular | |
5744 | && !readonly_dynrelocs (h)) | |
25dbc73a | 5745 | { |
625af618 AM |
5746 | h->non_got_ref = 0; |
5747 | return TRUE; | |
252b5132 RH |
5748 | } |
5749 | ||
25dbc73a AM |
5750 | /* We must allocate the symbol in our .dynbss section, which will |
5751 | become part of the .bss section of the executable. There will be | |
5752 | an entry for this symbol in the .dynsym section. The dynamic | |
5753 | object will contain position independent code, so all references | |
5754 | from the dynamic object to this symbol will go through the global | |
5755 | offset table. The dynamic linker will use the .dynsym entry to | |
5756 | determine the address it must put in the global offset table, so | |
5757 | both the dynamic object and the regular object will refer to the | |
5758 | same memory location for the variable. | |
5759 | ||
4dc4a9a5 DJ |
5760 | Of course, if the symbol is referenced using SDAREL relocs, we |
5761 | must instead allocate it in .sbss. */ | |
25dbc73a | 5762 | |
4dc4a9a5 | 5763 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5764 | s = htab->dynsbss; |
5765 | else | |
5766 | s = htab->dynbss; | |
5767 | BFD_ASSERT (s != NULL); | |
5768 | ||
5769 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
5770 | copy the initial value out of the dynamic object and into the | |
5771 | runtime process image. We need to remember the offset into the | |
5772 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 5773 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
25dbc73a AM |
5774 | { |
5775 | asection *srel; | |
5776 | ||
4dc4a9a5 | 5777 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5778 | srel = htab->relsbss; |
5779 | else | |
5780 | srel = htab->relbss; | |
5781 | BFD_ASSERT (srel != NULL); | |
5782 | srel->size += sizeof (Elf32_External_Rela); | |
5783 | h->needs_copy = 1; | |
5784 | } | |
7619e7c7 | 5785 | |
6cabe1ea | 5786 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
25dbc73a AM |
5787 | } |
5788 | \f | |
ac39eb42 AM |
5789 | /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is |
5790 | xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, | |
5791 | specifying the addend on the plt relocation. For -fpic code, the sym | |
5792 | is xxxxxxxx.plt_pic32.<callee>, and for -fPIC | |
5793 | xxxxxxxx.got2.plt_pic32.<callee>. */ | |
0ba07910 AM |
5794 | |
5795 | static bfd_boolean | |
5796 | add_stub_sym (struct plt_entry *ent, | |
5797 | struct elf_link_hash_entry *h, | |
ac39eb42 | 5798 | struct bfd_link_info *info) |
0ba07910 AM |
5799 | { |
5800 | struct elf_link_hash_entry *sh; | |
5801 | size_t len1, len2, len3; | |
5802 | char *name; | |
ac39eb42 AM |
5803 | const char *stub; |
5804 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
5805 | ||
0e1862bb | 5806 | if (bfd_link_pic (info)) |
ac39eb42 AM |
5807 | stub = ".plt_pic32."; |
5808 | else | |
5809 | stub = ".plt_call32."; | |
0ba07910 AM |
5810 | |
5811 | len1 = strlen (h->root.root.string); | |
ac39eb42 | 5812 | len2 = strlen (stub); |
0ba07910 AM |
5813 | len3 = 0; |
5814 | if (ent->sec) | |
5815 | len3 = strlen (ent->sec->name); | |
ac39eb42 | 5816 | name = bfd_malloc (len1 + len2 + len3 + 9); |
0ba07910 AM |
5817 | if (name == NULL) |
5818 | return FALSE; | |
5819 | sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); | |
5820 | if (ent->sec) | |
5821 | memcpy (name + 8, ent->sec->name, len3); | |
ac39eb42 AM |
5822 | memcpy (name + 8 + len3, stub, len2); |
5823 | memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); | |
0ba07910 AM |
5824 | sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); |
5825 | if (sh == NULL) | |
5826 | return FALSE; | |
5827 | if (sh->root.type == bfd_link_hash_new) | |
5828 | { | |
5829 | sh->root.type = bfd_link_hash_defined; | |
5830 | sh->root.u.def.section = htab->glink; | |
5831 | sh->root.u.def.value = ent->glink_offset; | |
5832 | sh->ref_regular = 1; | |
5833 | sh->def_regular = 1; | |
5834 | sh->ref_regular_nonweak = 1; | |
5835 | sh->forced_local = 1; | |
5836 | sh->non_elf = 0; | |
2ec55de3 | 5837 | sh->root.linker_def = 1; |
0ba07910 AM |
5838 | } |
5839 | return TRUE; | |
5840 | } | |
5841 | ||
3b36f7e6 AM |
5842 | /* Allocate NEED contiguous space in .got, and return the offset. |
5843 | Handles allocation of the got header when crossing 32k. */ | |
5844 | ||
5845 | static bfd_vma | |
5846 | allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) | |
5847 | { | |
5848 | bfd_vma where; | |
4a3dc543 | 5849 | unsigned int max_before_header; |
3b36f7e6 | 5850 | |
4a3dc543 | 5851 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
5852 | { |
5853 | where = htab->got->size; | |
5854 | htab->got->size += need; | |
5855 | } | |
3b36f7e6 AM |
5856 | else |
5857 | { | |
4a3dc543 RS |
5858 | max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; |
5859 | if (need <= htab->got_gap) | |
3b36f7e6 | 5860 | { |
4a3dc543 RS |
5861 | where = max_before_header - htab->got_gap; |
5862 | htab->got_gap -= need; | |
5863 | } | |
5864 | else | |
5865 | { | |
5866 | if (htab->got->size + need > max_before_header | |
5867 | && htab->got->size <= max_before_header) | |
5868 | { | |
5869 | htab->got_gap = max_before_header - htab->got->size; | |
5870 | htab->got->size = max_before_header + htab->got_header_size; | |
5871 | } | |
5872 | where = htab->got->size; | |
5873 | htab->got->size += need; | |
3b36f7e6 | 5874 | } |
3b36f7e6 AM |
5875 | } |
5876 | return where; | |
5877 | } | |
5878 | ||
25dbc73a | 5879 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
252b5132 | 5880 | |
b34976b6 | 5881 | static bfd_boolean |
25dbc73a | 5882 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
252b5132 | 5883 | { |
25dbc73a AM |
5884 | struct bfd_link_info *info = inf; |
5885 | struct ppc_elf_link_hash_entry *eh; | |
7619e7c7 | 5886 | struct ppc_elf_link_hash_table *htab; |
6061a67d | 5887 | struct elf_dyn_relocs *p; |
252b5132 | 5888 | |
25dbc73a | 5889 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5890 | return TRUE; |
252b5132 | 5891 | |
7619e7c7 | 5892 | htab = ppc_elf_hash_table (info); |
e054468f AM |
5893 | if (htab->elf.dynamic_sections_created |
5894 | || h->type == STT_GNU_IFUNC) | |
252b5132 | 5895 | { |
a6aa5195 AM |
5896 | struct plt_entry *ent; |
5897 | bfd_boolean doneone = FALSE; | |
28e99bb6 | 5898 | bfd_vma plt_offset = 0, glink_offset = 0; |
e054468f | 5899 | bfd_boolean dyn; |
28e99bb6 | 5900 | |
a6aa5195 AM |
5901 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5902 | if (ent->plt.refcount > 0) | |
5903 | { | |
5904 | /* Make sure this symbol is output as a dynamic symbol. */ | |
5905 | if (h->dynindx == -1 | |
e054468f AM |
5906 | && !h->forced_local |
5907 | && !h->def_regular | |
5908 | && htab->elf.dynamic_sections_created) | |
a6aa5195 AM |
5909 | { |
5910 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5911 | return FALSE; | |
5912 | } | |
252b5132 | 5913 | |
e054468f | 5914 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 5915 | if (bfd_link_pic (info) |
e054468f AM |
5916 | || h->type == STT_GNU_IFUNC |
5917 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
a6aa5195 AM |
5918 | { |
5919 | asection *s = htab->plt; | |
25f23106 | 5920 | if (!dyn || h->dynindx == -1) |
e054468f | 5921 | s = htab->iplt; |
7619e7c7 | 5922 | |
25f23106 | 5923 | if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1) |
a6aa5195 | 5924 | { |
a6aa5195 | 5925 | if (!doneone) |
28e99bb6 AM |
5926 | { |
5927 | plt_offset = s->size; | |
5928 | s->size += 4; | |
5929 | } | |
5930 | ent->plt.offset = plt_offset; | |
d7128ce4 | 5931 | |
a6aa5195 | 5932 | s = htab->glink; |
0e1862bb | 5933 | if (!doneone || bfd_link_pic (info)) |
28e99bb6 AM |
5934 | { |
5935 | glink_offset = s->size; | |
5936 | s->size += GLINK_ENTRY_SIZE; | |
a7f2871e | 5937 | if (h == htab->tls_get_addr |
5446cbdf | 5938 | && !htab->params->no_tls_get_addr_opt) |
a7f2871e | 5939 | s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE; |
28e99bb6 AM |
5940 | } |
5941 | if (!doneone | |
0e1862bb | 5942 | && !bfd_link_pic (info) |
625af618 | 5943 | && h->def_dynamic |
a6aa5195 AM |
5944 | && !h->def_regular) |
5945 | { | |
5946 | h->root.u.def.section = s; | |
28e99bb6 | 5947 | h->root.u.def.value = glink_offset; |
a6aa5195 | 5948 | } |
28e99bb6 | 5949 | ent->glink_offset = glink_offset; |
0ba07910 | 5950 | |
5446cbdf | 5951 | if (htab->params->emit_stub_syms |
ac39eb42 | 5952 | && !add_stub_sym (ent, h, info)) |
0ba07910 | 5953 | return FALSE; |
a6aa5195 AM |
5954 | } |
5955 | else | |
5956 | { | |
a6aa5195 AM |
5957 | if (!doneone) |
5958 | { | |
28e99bb6 AM |
5959 | /* If this is the first .plt entry, make room |
5960 | for the special first entry. */ | |
5961 | if (s->size == 0) | |
9d8504b1 | 5962 | s->size += htab->plt_initial_entry_size; |
28e99bb6 AM |
5963 | |
5964 | /* The PowerPC PLT is actually composed of two | |
5965 | parts, the first part is 2 words (for a load | |
5966 | and a jump), and then there is a remaining | |
5967 | word available at the end. */ | |
9d8504b1 PB |
5968 | plt_offset = (htab->plt_initial_entry_size |
5969 | + (htab->plt_slot_size | |
5970 | * ((s->size | |
5971 | - htab->plt_initial_entry_size) | |
5972 | / htab->plt_entry_size))); | |
28e99bb6 AM |
5973 | |
5974 | /* If this symbol is not defined in a regular | |
5975 | file, and we are not generating a shared | |
5b914448 | 5976 | library, then set the symbol to this location |
de972ffa AM |
5977 | in the .plt. This is to avoid text |
5978 | relocations, and is required to make | |
28e99bb6 AM |
5979 | function pointers compare as equal between |
5980 | the normal executable and the shared library. */ | |
0e1862bb | 5981 | if (! bfd_link_pic (info) |
625af618 | 5982 | && h->def_dynamic |
28e99bb6 AM |
5983 | && !h->def_regular) |
5984 | { | |
5985 | h->root.u.def.section = s; | |
5986 | h->root.u.def.value = plt_offset; | |
5987 | } | |
5988 | ||
9d8504b1 PB |
5989 | /* Make room for this entry. */ |
5990 | s->size += htab->plt_entry_size; | |
5991 | /* After the 8192nd entry, room for two entries | |
5992 | is allocated. */ | |
4a3dc543 | 5993 | if (htab->plt_type == PLT_OLD |
9d8504b1 PB |
5994 | && (s->size - htab->plt_initial_entry_size) |
5995 | / htab->plt_entry_size | |
5996 | > PLT_NUM_SINGLE_ENTRIES) | |
5997 | s->size += htab->plt_entry_size; | |
a6aa5195 | 5998 | } |
28e99bb6 | 5999 | ent->plt.offset = plt_offset; |
a6aa5195 | 6000 | } |
25dbc73a | 6001 | |
a6aa5195 AM |
6002 | /* We also need to make an entry in the .rela.plt section. */ |
6003 | if (!doneone) | |
6004 | { | |
25f23106 AM |
6005 | if (!htab->elf.dynamic_sections_created |
6006 | || h->dynindx == -1) | |
e054468f AM |
6007 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
6008 | else | |
9d8504b1 | 6009 | { |
e054468f AM |
6010 | htab->relplt->size += sizeof (Elf32_External_Rela); |
6011 | ||
6012 | if (htab->plt_type == PLT_VXWORKS) | |
9d8504b1 | 6013 | { |
e054468f | 6014 | /* Allocate space for the unloaded relocations. */ |
0e1862bb | 6015 | if (!bfd_link_pic (info) |
e054468f | 6016 | && htab->elf.dynamic_sections_created) |
9d8504b1 | 6017 | { |
e054468f AM |
6018 | if (ent->plt.offset |
6019 | == (bfd_vma) htab->plt_initial_entry_size) | |
6020 | { | |
6021 | htab->srelplt2->size | |
6022 | += (sizeof (Elf32_External_Rela) | |
6023 | * VXWORKS_PLTRESOLVE_RELOCS); | |
6024 | } | |
6025 | ||
9d8504b1 | 6026 | htab->srelplt2->size |
e054468f AM |
6027 | += (sizeof (Elf32_External_Rela) |
6028 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS); | |
9d8504b1 PB |
6029 | } |
6030 | ||
e054468f AM |
6031 | /* Every PLT entry has an associated GOT entry in |
6032 | .got.plt. */ | |
6033 | htab->sgotplt->size += 4; | |
9d8504b1 | 6034 | } |
9d8504b1 | 6035 | } |
a6aa5195 AM |
6036 | doneone = TRUE; |
6037 | } | |
6038 | } | |
6039 | else | |
6040 | ent->plt.offset = (bfd_vma) -1; | |
a6aa5195 | 6041 | } |
2ce859a1 AM |
6042 | else |
6043 | ent->plt.offset = (bfd_vma) -1; | |
6044 | ||
6045 | if (!doneone) | |
6046 | { | |
6047 | h->plt.plist = NULL; | |
6048 | h->needs_plt = 0; | |
6049 | } | |
25dbc73a AM |
6050 | } |
6051 | else | |
6052 | { | |
a6aa5195 | 6053 | h->plt.plist = NULL; |
25dbc73a AM |
6054 | h->needs_plt = 0; |
6055 | } | |
6056 | ||
6057 | eh = (struct ppc_elf_link_hash_entry *) h; | |
d3e454b9 AM |
6058 | if (eh->elf.got.refcount > 0 |
6059 | || (ELIMINATE_COPY_RELOCS | |
6060 | && !eh->elf.def_regular | |
6061 | && eh->elf.protected_def | |
6062 | && eh->has_addr16_ha | |
6063 | && eh->has_addr16_lo | |
6064 | && htab->params->pic_fixup > 0)) | |
25dbc73a | 6065 | { |
d6e14abc AM |
6066 | bfd_boolean dyn; |
6067 | unsigned int need; | |
6068 | ||
25dbc73a AM |
6069 | /* Make sure this symbol is output as a dynamic symbol. */ |
6070 | if (eh->elf.dynindx == -1 | |
b099ab9f | 6071 | && !eh->elf.forced_local |
25f23106 | 6072 | && eh->elf.type != STT_GNU_IFUNC |
b099ab9f | 6073 | && htab->elf.dynamic_sections_created) |
25dbc73a AM |
6074 | { |
6075 | if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) | |
b34976b6 | 6076 | return FALSE; |
25dbc73a | 6077 | } |
252b5132 | 6078 | |
d6e14abc AM |
6079 | need = 0; |
6080 | if ((eh->tls_mask & TLS_TLS) != 0) | |
25dbc73a | 6081 | { |
d6e14abc | 6082 | if ((eh->tls_mask & TLS_LD) != 0) |
252b5132 | 6083 | { |
d6e14abc AM |
6084 | if (!eh->elf.def_dynamic) |
6085 | /* We'll just use htab->tlsld_got.offset. This should | |
6086 | always be the case. It's a little odd if we have | |
6087 | a local dynamic reloc against a non-local symbol. */ | |
6088 | htab->tlsld_got.refcount += 1; | |
6089 | else | |
3b36f7e6 | 6090 | need += 8; |
252b5132 | 6091 | } |
d6e14abc AM |
6092 | if ((eh->tls_mask & TLS_GD) != 0) |
6093 | need += 8; | |
6094 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6095 | need += 4; | |
6096 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3b36f7e6 | 6097 | need += 4; |
d6e14abc AM |
6098 | } |
6099 | else | |
6100 | need += 4; | |
6101 | if (need == 0) | |
6102 | eh->elf.got.offset = (bfd_vma) -1; | |
6103 | else | |
6104 | { | |
3b36f7e6 | 6105 | eh->elf.got.offset = allocate_got (htab, need); |
25dbc73a | 6106 | dyn = htab->elf.dynamic_sections_created; |
0e1862bb | 6107 | if ((bfd_link_pic (info) |
25dbc73a AM |
6108 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) |
6109 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
6110 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
252b5132 | 6111 | { |
91e21fb7 | 6112 | asection *rsec = htab->relgot; |
0bed072f AM |
6113 | |
6114 | if (eh->elf.type == STT_GNU_IFUNC) | |
6115 | rsec = htab->reliplt; | |
3b36f7e6 AM |
6116 | /* All the entries we allocated need relocs. |
6117 | Except LD only needs one. */ | |
d6e14abc AM |
6118 | if ((eh->tls_mask & TLS_LD) != 0 |
6119 | && eh->elf.def_dynamic) | |
3b36f7e6 | 6120 | need -= 4; |
25f23106 | 6121 | rsec->size += need * (sizeof (Elf32_External_Rela) / 4); |
252b5132 | 6122 | } |
25dbc73a AM |
6123 | } |
6124 | } | |
6125 | else | |
6126 | eh->elf.got.offset = (bfd_vma) -1; | |
252b5132 | 6127 | |
b099ab9f | 6128 | if (eh->dyn_relocs == NULL |
de972ffa | 6129 | || !htab->elf.dynamic_sections_created) |
25dbc73a | 6130 | return TRUE; |
252b5132 | 6131 | |
25dbc73a AM |
6132 | /* In the shared -Bsymbolic case, discard space allocated for |
6133 | dynamic pc-relative relocs against symbols which turn out to be | |
6134 | defined in regular objects. For the normal shared case, discard | |
6135 | space for relocs that have become local due to symbol visibility | |
6136 | changes. */ | |
6137 | ||
0e1862bb | 6138 | if (bfd_link_pic (info)) |
25dbc73a AM |
6139 | { |
6140 | /* Relocs that use pc_count are those that appear on a call insn, | |
1d483afe | 6141 | or certain REL relocs (see must_be_dyn_reloc) that can be |
25dbc73a AM |
6142 | generated via assembly. We want calls to protected symbols to |
6143 | resolve directly to the function rather than going via the plt. | |
6144 | If people want function pointer comparisons to work as expected | |
6145 | then they should avoid writing weird assembly. */ | |
6146 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
6147 | { | |
6061a67d | 6148 | struct elf_dyn_relocs **pp; |
25dbc73a AM |
6149 | |
6150 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
252b5132 | 6151 | { |
25dbc73a AM |
6152 | p->count -= p->pc_count; |
6153 | p->pc_count = 0; | |
6154 | if (p->count == 0) | |
6155 | *pp = p->next; | |
6156 | else | |
6157 | pp = &p->next; | |
252b5132 | 6158 | } |
25dbc73a | 6159 | } |
252b5132 | 6160 | |
3348747a NS |
6161 | if (htab->is_vxworks) |
6162 | { | |
6061a67d | 6163 | struct elf_dyn_relocs **pp; |
3348747a NS |
6164 | |
6165 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
6166 | { | |
6167 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
6168 | *pp = p->next; | |
6169 | else | |
6170 | pp = &p->next; | |
6171 | } | |
6172 | } | |
6173 | ||
89200bf8 AM |
6174 | /* Discard relocs on undefined symbols that must be local. */ |
6175 | if (eh->dyn_relocs != NULL | |
6176 | && h->root.type == bfd_link_hash_undefined | |
6177 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
6178 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
6179 | eh->dyn_relocs = NULL; | |
6180 | ||
25dbc73a AM |
6181 | /* Also discard relocs on undefined weak syms with non-default |
6182 | visibility. */ | |
cab87ef9 AM |
6183 | if (eh->dyn_relocs != NULL |
6184 | && h->root.type == bfd_link_hash_undefweak) | |
25dbc73a | 6185 | { |
dfbb6ac9 AM |
6186 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
6187 | eh->dyn_relocs = NULL; | |
6188 | ||
6189 | /* Make sure undefined weak symbols are output as a dynamic | |
6190 | symbol in PIEs. */ | |
6191 | else if (h->dynindx == -1 | |
e054468f AM |
6192 | && !h->forced_local |
6193 | && !h->def_regular) | |
dfbb6ac9 AM |
6194 | { |
6195 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6196 | return FALSE; | |
6197 | } | |
25dbc73a AM |
6198 | } |
6199 | } | |
6200 | else if (ELIMINATE_COPY_RELOCS) | |
6201 | { | |
6202 | /* For the non-shared case, discard space for relocs against | |
6203 | symbols which turn out to need copy relocs or are not | |
6204 | dynamic. */ | |
7619e7c7 | 6205 | |
25dbc73a | 6206 | if (!h->non_got_ref |
d3e454b9 AM |
6207 | && !h->def_regular |
6208 | && !(h->protected_def | |
6209 | && eh->has_addr16_ha | |
6210 | && eh->has_addr16_lo | |
6211 | && htab->params->pic_fixup > 0)) | |
25dbc73a AM |
6212 | { |
6213 | /* Make sure this symbol is output as a dynamic symbol. | |
6214 | Undefined weak syms won't yet be marked as dynamic. */ | |
6215 | if (h->dynindx == -1 | |
25f23106 | 6216 | && !h->forced_local) |
25dbc73a AM |
6217 | { |
6218 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6219 | return FALSE; | |
6220 | } | |
7619e7c7 | 6221 | |
25dbc73a AM |
6222 | /* If that succeeded, we know we'll be keeping all the |
6223 | relocs. */ | |
6224 | if (h->dynindx != -1) | |
6225 | goto keep; | |
6226 | } | |
252b5132 | 6227 | |
25dbc73a | 6228 | eh->dyn_relocs = NULL; |
252b5132 | 6229 | |
25dbc73a AM |
6230 | keep: ; |
6231 | } | |
252b5132 | 6232 | |
25dbc73a AM |
6233 | /* Finally, allocate space. */ |
6234 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
6235 | { | |
6236 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
f95f8542 | 6237 | if (eh->elf.type == STT_GNU_IFUNC) |
25f23106 | 6238 | sreloc = htab->reliplt; |
25dbc73a AM |
6239 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
6240 | } | |
252b5132 | 6241 | |
25dbc73a AM |
6242 | return TRUE; |
6243 | } | |
7619e7c7 | 6244 | |
625af618 AM |
6245 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
6246 | read-only sections. */ | |
7619e7c7 | 6247 | |
25dbc73a | 6248 | static bfd_boolean |
625af618 | 6249 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) |
25dbc73a | 6250 | { |
25dbc73a AM |
6251 | if (h->root.type == bfd_link_hash_indirect) |
6252 | return TRUE; | |
252b5132 | 6253 | |
625af618 | 6254 | if (readonly_dynrelocs (h)) |
25dbc73a | 6255 | { |
625af618 | 6256 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; |
ee05f2fe | 6257 | |
625af618 AM |
6258 | /* Not an error, just cut short the traversal. */ |
6259 | return FALSE; | |
25dbc73a AM |
6260 | } |
6261 | return TRUE; | |
6262 | } | |
6263 | ||
6177242a AM |
6264 | static const unsigned char glink_eh_frame_cie[] = |
6265 | { | |
6266 | 0, 0, 0, 16, /* length. */ | |
6267 | 0, 0, 0, 0, /* id. */ | |
6268 | 1, /* CIE version. */ | |
6269 | 'z', 'R', 0, /* Augmentation string. */ | |
6270 | 4, /* Code alignment. */ | |
6271 | 0x7c, /* Data alignment. */ | |
6272 | 65, /* RA reg. */ | |
6273 | 1, /* Augmentation size. */ | |
6274 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
6275 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
6276 | }; | |
6277 | ||
25dbc73a AM |
6278 | /* Set the sizes of the dynamic sections. */ |
6279 | ||
6280 | static bfd_boolean | |
93d1b056 | 6281 | ppc_elf_size_dynamic_sections (bfd *output_bfd, |
25dbc73a AM |
6282 | struct bfd_link_info *info) |
6283 | { | |
6284 | struct ppc_elf_link_hash_table *htab; | |
6285 | asection *s; | |
6286 | bfd_boolean relocs; | |
6287 | bfd *ibfd; | |
7fce784e | 6288 | |
252b5132 | 6289 | #ifdef DEBUG |
25dbc73a | 6290 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
252b5132 | 6291 | #endif |
252b5132 | 6292 | |
25dbc73a AM |
6293 | htab = ppc_elf_hash_table (info); |
6294 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 | 6295 | |
25dbc73a AM |
6296 | if (elf_hash_table (info)->dynamic_sections_created) |
6297 | { | |
6298 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 6299 | if (bfd_link_executable (info) && !info->nointerp) |
25dbc73a | 6300 | { |
3d4d4302 | 6301 | s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); |
25dbc73a AM |
6302 | BFD_ASSERT (s != NULL); |
6303 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
6304 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
6305 | } | |
6306 | } | |
252b5132 | 6307 | |
4a3dc543 | 6308 | if (htab->plt_type == PLT_OLD) |
d7128ce4 | 6309 | htab->got_header_size = 16; |
4a3dc543 | 6310 | else if (htab->plt_type == PLT_NEW) |
d7128ce4 | 6311 | htab->got_header_size = 12; |
252b5132 | 6312 | |
25dbc73a AM |
6313 | /* Set up .got offsets for local syms, and space for local dynamic |
6314 | relocs. */ | |
c72f2fb2 | 6315 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
25dbc73a AM |
6316 | { |
6317 | bfd_signed_vma *local_got; | |
6318 | bfd_signed_vma *end_local_got; | |
e054468f AM |
6319 | struct plt_entry **local_plt; |
6320 | struct plt_entry **end_local_plt; | |
25dbc73a AM |
6321 | char *lgot_masks; |
6322 | bfd_size_type locsymcount; | |
6323 | Elf_Internal_Shdr *symtab_hdr; | |
7fce784e | 6324 | |
0c8d6e5c | 6325 | if (!is_ppc_elf (ibfd)) |
25dbc73a | 6326 | continue; |
7fce784e | 6327 | |
25dbc73a AM |
6328 | for (s = ibfd->sections; s != NULL; s = s->next) |
6329 | { | |
f95f8542 | 6330 | struct ppc_dyn_relocs *p; |
252b5132 | 6331 | |
f95f8542 | 6332 | for (p = ((struct ppc_dyn_relocs *) |
25dbc73a AM |
6333 | elf_section_data (s)->local_dynrel); |
6334 | p != NULL; | |
6335 | p = p->next) | |
6336 | { | |
6337 | if (!bfd_is_abs_section (p->sec) | |
6338 | && bfd_is_abs_section (p->sec->output_section)) | |
6339 | { | |
6340 | /* Input section has been discarded, either because | |
6341 | it is a copy of a linkonce section or due to | |
6342 | linker script /DISCARD/, so we'll be discarding | |
6343 | the relocs too. */ | |
7fce784e | 6344 | } |
3348747a NS |
6345 | else if (htab->is_vxworks |
6346 | && strcmp (p->sec->output_section->name, | |
6347 | ".tls_vars") == 0) | |
6348 | { | |
6349 | /* Relocations in vxworks .tls_vars sections are | |
6350 | handled specially by the loader. */ | |
6351 | } | |
25dbc73a | 6352 | else if (p->count != 0) |
7fce784e | 6353 | { |
25f23106 | 6354 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
f95f8542 | 6355 | if (p->ifunc) |
25f23106 AM |
6356 | sreloc = htab->reliplt; |
6357 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
25dbc73a AM |
6358 | if ((p->sec->output_section->flags |
6359 | & (SEC_READONLY | SEC_ALLOC)) | |
6360 | == (SEC_READONLY | SEC_ALLOC)) | |
6361 | info->flags |= DF_TEXTREL; | |
7fce784e | 6362 | } |
252b5132 | 6363 | } |
252b5132 | 6364 | } |
252b5132 | 6365 | |
25dbc73a AM |
6366 | local_got = elf_local_got_refcounts (ibfd); |
6367 | if (!local_got) | |
6368 | continue; | |
252b5132 | 6369 | |
0ffa91dd | 6370 | symtab_hdr = &elf_symtab_hdr (ibfd); |
25dbc73a AM |
6371 | locsymcount = symtab_hdr->sh_info; |
6372 | end_local_got = local_got + locsymcount; | |
e054468f AM |
6373 | local_plt = (struct plt_entry **) end_local_got; |
6374 | end_local_plt = local_plt + locsymcount; | |
6375 | lgot_masks = (char *) end_local_plt; | |
91d6fa6a | 6376 | |
25dbc73a AM |
6377 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
6378 | if (*local_got > 0) | |
6379 | { | |
d6e14abc AM |
6380 | unsigned int need = 0; |
6381 | if ((*lgot_masks & TLS_TLS) != 0) | |
25dbc73a | 6382 | { |
d6e14abc AM |
6383 | if ((*lgot_masks & TLS_GD) != 0) |
6384 | need += 8; | |
6385 | if ((*lgot_masks & TLS_LD) != 0) | |
6386 | htab->tlsld_got.refcount += 1; | |
6387 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6388 | need += 4; | |
6389 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
6390 | need += 4; | |
25dbc73a | 6391 | } |
d6e14abc AM |
6392 | else |
6393 | need += 4; | |
6394 | if (need == 0) | |
6395 | *local_got = (bfd_vma) -1; | |
25dbc73a AM |
6396 | else |
6397 | { | |
3b36f7e6 | 6398 | *local_got = allocate_got (htab, need); |
0e1862bb | 6399 | if (bfd_link_pic (info)) |
0bed072f AM |
6400 | { |
6401 | asection *srel = htab->relgot; | |
6402 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
6403 | srel = htab->reliplt; | |
6404 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); | |
6405 | } | |
25dbc73a AM |
6406 | } |
6407 | } | |
6408 | else | |
6409 | *local_got = (bfd_vma) -1; | |
e054468f AM |
6410 | |
6411 | if (htab->is_vxworks) | |
6412 | continue; | |
6413 | ||
6414 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
6415 | for (; local_plt < end_local_plt; ++local_plt) | |
6416 | { | |
6417 | struct plt_entry *ent; | |
6418 | bfd_boolean doneone = FALSE; | |
6419 | bfd_vma plt_offset = 0, glink_offset = 0; | |
6420 | ||
6421 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
6422 | if (ent->plt.refcount > 0) | |
6423 | { | |
91d6fa6a | 6424 | s = htab->iplt; |
e054468f AM |
6425 | |
6426 | if (!doneone) | |
6427 | { | |
6428 | plt_offset = s->size; | |
6429 | s->size += 4; | |
6430 | } | |
6431 | ent->plt.offset = plt_offset; | |
6432 | ||
6433 | s = htab->glink; | |
0e1862bb | 6434 | if (!doneone || bfd_link_pic (info)) |
e054468f AM |
6435 | { |
6436 | glink_offset = s->size; | |
6437 | s->size += GLINK_ENTRY_SIZE; | |
6438 | } | |
6439 | ent->glink_offset = glink_offset; | |
6440 | ||
6441 | if (!doneone) | |
6442 | { | |
25f23106 | 6443 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
e054468f AM |
6444 | doneone = TRUE; |
6445 | } | |
6446 | } | |
6447 | else | |
6448 | ent->plt.offset = (bfd_vma) -1; | |
6449 | } | |
25dbc73a | 6450 | } |
252b5132 | 6451 | |
b7fcf6f6 AM |
6452 | /* Allocate space for global sym dynamic relocs. */ |
6453 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
6454 | ||
3b36f7e6 AM |
6455 | if (htab->tlsld_got.refcount > 0) |
6456 | { | |
6457 | htab->tlsld_got.offset = allocate_got (htab, 8); | |
0e1862bb | 6458 | if (bfd_link_pic (info)) |
3b36f7e6 AM |
6459 | htab->relgot->size += sizeof (Elf32_External_Rela); |
6460 | } | |
6461 | else | |
6462 | htab->tlsld_got.offset = (bfd_vma) -1; | |
6463 | ||
4a3dc543 | 6464 | if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) |
3b36f7e6 AM |
6465 | { |
6466 | unsigned int g_o_t = 32768; | |
6467 | ||
4d962050 AM |
6468 | /* If we haven't allocated the header, do so now. When we get here, |
6469 | for old plt/got the got size will be 0 to 32764 (not allocated), | |
6470 | or 32780 to 65536 (header allocated). For new plt/got, the | |
6471 | corresponding ranges are 0 to 32768 and 32780 to 65536. */ | |
3b36f7e6 AM |
6472 | if (htab->got->size <= 32768) |
6473 | { | |
6474 | g_o_t = htab->got->size; | |
4a3dc543 | 6475 | if (htab->plt_type == PLT_OLD) |
4d962050 | 6476 | g_o_t += 4; |
3b36f7e6 AM |
6477 | htab->got->size += htab->got_header_size; |
6478 | } | |
3b36f7e6 AM |
6479 | |
6480 | htab->elf.hgot->root.u.def.value = g_o_t; | |
6481 | } | |
0e1862bb | 6482 | if (bfd_link_pic (info)) |
bd6c6e2b AM |
6483 | { |
6484 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
93d1b056 AM |
6485 | |
6486 | sda->root.u.def.section = htab->elf.hgot->root.u.def.section; | |
6487 | sda->root.u.def.value = htab->elf.hgot->root.u.def.value; | |
bd6c6e2b | 6488 | } |
15bfcc77 AM |
6489 | if (info->emitrelocations) |
6490 | { | |
6491 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
6492 | ||
6493 | if (sda != NULL && sda->ref_regular) | |
6494 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6495 | sda = htab->sdata[1].sym; | |
6496 | if (sda != NULL && sda->ref_regular) | |
6497 | sda->root.u.def.section->flags |= SEC_KEEP; | |
6498 | } | |
3b36f7e6 | 6499 | |
e054468f AM |
6500 | if (htab->glink != NULL |
6501 | && htab->glink->size != 0 | |
6502 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
6503 | { |
6504 | htab->glink_pltresolve = htab->glink->size; | |
86b9da88 AM |
6505 | /* Space for the branch table. */ |
6506 | htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; | |
6507 | /* Pad out to align the start of PLTresolve. */ | |
5446cbdf AM |
6508 | htab->glink->size += -htab->glink->size & (htab->params->ppc476_workaround |
6509 | ? 63 : 15); | |
d7128ce4 | 6510 | htab->glink->size += GLINK_PLTRESOLVE; |
0ba07910 | 6511 | |
5446cbdf | 6512 | if (htab->params->emit_stub_syms) |
0ba07910 AM |
6513 | { |
6514 | struct elf_link_hash_entry *sh; | |
6515 | sh = elf_link_hash_lookup (&htab->elf, "__glink", | |
6516 | TRUE, FALSE, FALSE); | |
6517 | if (sh == NULL) | |
6518 | return FALSE; | |
6519 | if (sh->root.type == bfd_link_hash_new) | |
6520 | { | |
6521 | sh->root.type = bfd_link_hash_defined; | |
6522 | sh->root.u.def.section = htab->glink; | |
6523 | sh->root.u.def.value = htab->glink_pltresolve; | |
6524 | sh->ref_regular = 1; | |
6525 | sh->def_regular = 1; | |
6526 | sh->ref_regular_nonweak = 1; | |
6527 | sh->forced_local = 1; | |
6528 | sh->non_elf = 0; | |
2ec55de3 | 6529 | sh->root.linker_def = 1; |
0ba07910 AM |
6530 | } |
6531 | sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", | |
6532 | TRUE, FALSE, FALSE); | |
6533 | if (sh == NULL) | |
6534 | return FALSE; | |
6535 | if (sh->root.type == bfd_link_hash_new) | |
6536 | { | |
6537 | sh->root.type = bfd_link_hash_defined; | |
6538 | sh->root.u.def.section = htab->glink; | |
6539 | sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; | |
6540 | sh->ref_regular = 1; | |
6541 | sh->def_regular = 1; | |
6542 | sh->ref_regular_nonweak = 1; | |
6543 | sh->forced_local = 1; | |
6544 | sh->non_elf = 0; | |
2ec55de3 | 6545 | sh->root.linker_def = 1; |
0ba07910 AM |
6546 | } |
6547 | } | |
d7128ce4 AM |
6548 | } |
6549 | ||
6177242a AM |
6550 | if (htab->glink != NULL |
6551 | && htab->glink->size != 0 | |
6552 | && htab->glink_eh_frame != NULL | |
9a2a56cc AM |
6553 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) |
6554 | && _bfd_elf_eh_frame_present (info)) | |
6177242a AM |
6555 | { |
6556 | s = htab->glink_eh_frame; | |
6557 | s->size = sizeof (glink_eh_frame_cie) + 20; | |
0e1862bb | 6558 | if (bfd_link_pic (info)) |
6177242a AM |
6559 | { |
6560 | s->size += 4; | |
6561 | if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256) | |
6562 | s->size += 4; | |
6563 | } | |
6564 | } | |
6565 | ||
25dbc73a AM |
6566 | /* We've now determined the sizes of the various dynamic sections. |
6567 | Allocate memory for them. */ | |
6568 | relocs = FALSE; | |
6569 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 6570 | { |
9d8504b1 PB |
6571 | bfd_boolean strip_section = TRUE; |
6572 | ||
25dbc73a AM |
6573 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
6574 | continue; | |
252b5132 | 6575 | |
25dbc73a | 6576 | if (s == htab->plt |
e054468f | 6577 | || s == htab->got) |
25dbc73a | 6578 | { |
9d8504b1 PB |
6579 | /* We'd like to strip these sections if they aren't needed, but if |
6580 | we've exported dynamic symbols from them we must leave them. | |
6581 | It's too late to tell BFD to get rid of the symbols. */ | |
e054468f | 6582 | if (htab->elf.hplt != NULL) |
9d8504b1 | 6583 | strip_section = FALSE; |
25dbc73a AM |
6584 | /* Strip this section if we don't need it; see the |
6585 | comment below. */ | |
6586 | } | |
e054468f AM |
6587 | else if (s == htab->iplt |
6588 | || s == htab->glink | |
6177242a | 6589 | || s == htab->glink_eh_frame |
e054468f AM |
6590 | || s == htab->sgotplt |
6591 | || s == htab->sbss | |
6592 | || s == htab->dynbss | |
15bfcc77 | 6593 | || s == htab->dynsbss) |
25dbc73a | 6594 | { |
c9a2f333 | 6595 | /* Strip these too. */ |
25dbc73a | 6596 | } |
15bfcc77 AM |
6597 | else if (s == htab->sdata[0].section |
6598 | || s == htab->sdata[1].section) | |
6599 | { | |
6600 | strip_section = (s->flags & SEC_KEEP) == 0; | |
6601 | } | |
a0f49396 NC |
6602 | else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s), |
6603 | ".rela")) | |
25dbc73a | 6604 | { |
c456f082 | 6605 | if (s->size != 0) |
25dbc73a AM |
6606 | { |
6607 | /* Remember whether there are any relocation sections. */ | |
6608 | relocs = TRUE; | |
252b5132 | 6609 | |
25dbc73a AM |
6610 | /* We use the reloc_count field as a counter if we need |
6611 | to copy relocs into the output file. */ | |
6612 | s->reloc_count = 0; | |
252b5132 RH |
6613 | } |
6614 | } | |
25dbc73a AM |
6615 | else |
6616 | { | |
6617 | /* It's not one of our sections, so don't allocate space. */ | |
6618 | continue; | |
6619 | } | |
252b5132 | 6620 | |
9d8504b1 | 6621 | if (s->size == 0 && strip_section) |
25dbc73a | 6622 | { |
c456f082 AM |
6623 | /* If we don't need this section, strip it from the |
6624 | output file. This is mostly to handle .rela.bss and | |
6625 | .rela.plt. We must create both sections in | |
6626 | create_dynamic_sections, because they must be created | |
6627 | before the linker maps input sections to output | |
6628 | sections. The linker does that before | |
6629 | adjust_dynamic_symbol is called, and it is that | |
6630 | function which decides whether anything needs to go | |
6631 | into these sections. */ | |
8423293d | 6632 | s->flags |= SEC_EXCLUDE; |
25dbc73a AM |
6633 | continue; |
6634 | } | |
7fce784e | 6635 | |
d7128ce4 | 6636 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
644285ef AM |
6637 | continue; |
6638 | ||
25dbc73a AM |
6639 | /* Allocate memory for the section contents. */ |
6640 | s->contents = bfd_zalloc (htab->elf.dynobj, s->size); | |
6641 | if (s->contents == NULL) | |
6642 | return FALSE; | |
6643 | } | |
252b5132 | 6644 | |
25dbc73a | 6645 | if (htab->elf.dynamic_sections_created) |
7619e7c7 | 6646 | { |
25dbc73a AM |
6647 | /* Add some entries to the .dynamic section. We fill in the |
6648 | values later, in ppc_elf_finish_dynamic_sections, but we | |
6649 | must add the entries now so that we get the correct size for | |
6650 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6651 | dynamic linker and used by the debugger. */ | |
6652 | #define add_dynamic_entry(TAG, VAL) \ | |
6653 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
252b5132 | 6654 | |
0e1862bb | 6655 | if (bfd_link_executable (info)) |
7619e7c7 | 6656 | { |
25dbc73a AM |
6657 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
6658 | return FALSE; | |
7619e7c7 AM |
6659 | } |
6660 | ||
25dbc73a | 6661 | if (htab->plt != NULL && htab->plt->size != 0) |
7619e7c7 | 6662 | { |
25dbc73a AM |
6663 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6664 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6665 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
6666 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
6667 | return FALSE; | |
6668 | } | |
7619e7c7 | 6669 | |
c7e17e05 AM |
6670 | if (htab->plt_type == PLT_NEW |
6671 | && htab->glink != NULL | |
6672 | && htab->glink->size != 0) | |
d7128ce4 | 6673 | { |
1fe44d79 | 6674 | if (!add_dynamic_entry (DT_PPC_GOT, 0)) |
d7128ce4 | 6675 | return FALSE; |
5446cbdf | 6676 | if (!htab->params->no_tls_get_addr_opt |
a7f2871e AM |
6677 | && htab->tls_get_addr != NULL |
6678 | && htab->tls_get_addr->plt.plist != NULL | |
e8910a83 | 6679 | && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS)) |
a7f2871e | 6680 | return FALSE; |
d7128ce4 AM |
6681 | } |
6682 | ||
25dbc73a AM |
6683 | if (relocs) |
6684 | { | |
6685 | if (!add_dynamic_entry (DT_RELA, 0) | |
6686 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6687 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
6688 | return FALSE; | |
6689 | } | |
7619e7c7 | 6690 | |
25dbc73a AM |
6691 | /* If any dynamic relocs apply to a read-only section, then we |
6692 | need a DT_TEXTREL entry. */ | |
6693 | if ((info->flags & DF_TEXTREL) == 0) | |
625af618 | 6694 | elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, |
25dbc73a | 6695 | info); |
7619e7c7 | 6696 | |
25dbc73a AM |
6697 | if ((info->flags & DF_TEXTREL) != 0) |
6698 | { | |
6699 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
6700 | return FALSE; | |
7619e7c7 | 6701 | } |
7a2b07ff NS |
6702 | if (htab->is_vxworks |
6703 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
6704 | return FALSE; | |
6705 | } | |
25dbc73a AM |
6706 | #undef add_dynamic_entry |
6707 | ||
7e01508c AM |
6708 | if (htab->glink_eh_frame != NULL |
6709 | && htab->glink_eh_frame->contents != NULL) | |
6710 | { | |
6711 | unsigned char *p = htab->glink_eh_frame->contents; | |
6712 | bfd_vma val; | |
6713 | ||
6714 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
6715 | /* CIE length (rewrite in case little-endian). */ | |
6716 | bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p); | |
6717 | p += sizeof (glink_eh_frame_cie); | |
6718 | /* FDE length. */ | |
6719 | val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie); | |
6720 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6721 | p += 4; | |
6722 | /* CIE pointer. */ | |
6723 | val = p - htab->glink_eh_frame->contents; | |
6724 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6725 | p += 4; | |
6726 | /* Offset to .glink. Set later. */ | |
6727 | p += 4; | |
6728 | /* .glink size. */ | |
6729 | bfd_put_32 (htab->elf.dynobj, htab->glink->size, p); | |
6730 | p += 4; | |
6731 | /* Augmentation. */ | |
6732 | p += 1; | |
6733 | ||
0e1862bb | 6734 | if (bfd_link_pic (info) |
7e01508c AM |
6735 | && htab->elf.dynamic_sections_created) |
6736 | { | |
6737 | bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2; | |
6738 | if (adv < 64) | |
6739 | *p++ = DW_CFA_advance_loc + adv; | |
6740 | else if (adv < 256) | |
6741 | { | |
6742 | *p++ = DW_CFA_advance_loc1; | |
6743 | *p++ = adv; | |
6744 | } | |
6745 | else if (adv < 65536) | |
6746 | { | |
6747 | *p++ = DW_CFA_advance_loc2; | |
6748 | bfd_put_16 (htab->elf.dynobj, adv, p); | |
6749 | p += 2; | |
6750 | } | |
6751 | else | |
6752 | { | |
6753 | *p++ = DW_CFA_advance_loc4; | |
6754 | bfd_put_32 (htab->elf.dynobj, adv, p); | |
6755 | p += 4; | |
6756 | } | |
6757 | *p++ = DW_CFA_register; | |
6758 | *p++ = 65; | |
6759 | p++; | |
6760 | *p++ = DW_CFA_advance_loc + 4; | |
6761 | *p++ = DW_CFA_restore_extended; | |
6762 | *p++ = 65; | |
6763 | } | |
6764 | BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4) | |
6765 | == htab->glink_eh_frame->size); | |
6766 | } | |
6767 | ||
7619e7c7 AM |
6768 | return TRUE; |
6769 | } | |
0eb4a168 | 6770 | |
93d1b056 AM |
6771 | /* Arrange to have _SDA_BASE_ or _SDA2_BASE_ stripped from the output |
6772 | if it looks like nothing is using them. */ | |
6773 | ||
6774 | static void | |
6775 | maybe_strip_sdasym (bfd *output_bfd, elf_linker_section_t *lsect) | |
6776 | { | |
6777 | struct elf_link_hash_entry *sda = lsect->sym; | |
6778 | ||
6779 | if (sda != NULL && !sda->ref_regular && sda->dynindx == -1) | |
6780 | { | |
6781 | asection *s; | |
6782 | ||
6783 | s = bfd_get_section_by_name (output_bfd, lsect->name); | |
6784 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6785 | { | |
6786 | s = bfd_get_section_by_name (output_bfd, lsect->bss_name); | |
6787 | if (s == NULL || bfd_section_removed_from_list (output_bfd, s)) | |
6788 | { | |
6789 | sda->def_regular = 0; | |
6790 | /* This is somewhat magic. See elf_link_output_extsym. */ | |
6791 | sda->ref_dynamic = 1; | |
6792 | sda->forced_local = 0; | |
6793 | } | |
6794 | } | |
6795 | } | |
6796 | } | |
6797 | ||
6798 | void | |
6799 | ppc_elf_maybe_strip_sdata_syms (struct bfd_link_info *info) | |
6800 | { | |
6801 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
6802 | ||
6803 | if (htab != NULL) | |
6804 | { | |
6805 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[0]); | |
6806 | maybe_strip_sdasym (info->output_bfd, &htab->sdata[1]); | |
6807 | } | |
6808 | } | |
6809 | ||
6810 | ||
0eb4a168 AM |
6811 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
6812 | ||
6813 | static bfd_boolean | |
6814 | ppc_elf_hash_symbol (struct elf_link_hash_entry *h) | |
6815 | { | |
6816 | if (h->plt.plist != NULL | |
6817 | && !h->def_regular | |
6818 | && (!h->pointer_equality_needed | |
6819 | || !h->ref_regular_nonweak)) | |
6820 | return FALSE; | |
6821 | ||
6822 | return _bfd_elf_hash_symbol (h); | |
6823 | } | |
25dbc73a AM |
6824 | \f |
6825 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
6826 | ||
01017ef8 NS |
6827 | /* Relaxation trampolines. r12 is available for clobbering (r11, is |
6828 | used for some functions that are allowed to break the ABI). */ | |
25dbc73a AM |
6829 | static const int shared_stub_entry[] = |
6830 | { | |
6831 | 0x7c0802a6, /* mflr 0 */ | |
6832 | 0x429f0005, /* bcl 20, 31, .Lxxx */ | |
01017ef8 NS |
6833 | 0x7d8802a6, /* mflr 12 */ |
6834 | 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */ | |
53291d1f | 6835 | 0x398c0000, /* addi 12, 12, (xxx-.Lxxx)@l */ |
25dbc73a | 6836 | 0x7c0803a6, /* mtlr 0 */ |
01017ef8 | 6837 | 0x7d8903a6, /* mtctr 12 */ |
25dbc73a AM |
6838 | 0x4e800420, /* bctr */ |
6839 | }; | |
6840 | ||
6841 | static const int stub_entry[] = | |
6842 | { | |
01017ef8 NS |
6843 | 0x3d800000, /* lis 12,xxx@ha */ |
6844 | 0x398c0000, /* addi 12,12,xxx@l */ | |
6845 | 0x7d8903a6, /* mtctr 12 */ | |
25dbc73a AM |
6846 | 0x4e800420, /* bctr */ |
6847 | }; | |
6848 | ||
5446cbdf AM |
6849 | struct ppc_elf_relax_info |
6850 | { | |
6851 | unsigned int workaround_size; | |
d3e454b9 | 6852 | unsigned int picfixup_size; |
5446cbdf AM |
6853 | }; |
6854 | ||
6855 | /* This function implements long branch trampolines, and the ppc476 | |
6856 | icache bug workaround. Any section needing trampolines or patch | |
6857 | space for the workaround has its size extended so that we can | |
53291d1f | 6858 | add trampolines at the end of the section. */ |
5446cbdf | 6859 | |
25dbc73a AM |
6860 | static bfd_boolean |
6861 | ppc_elf_relax_section (bfd *abfd, | |
6862 | asection *isec, | |
6863 | struct bfd_link_info *link_info, | |
6864 | bfd_boolean *again) | |
6865 | { | |
d3e454b9 | 6866 | struct one_branch_fixup |
25dbc73a | 6867 | { |
d3e454b9 | 6868 | struct one_branch_fixup *next; |
25dbc73a | 6869 | asection *tsec; |
01017ef8 NS |
6870 | /* Final link, can use the symbol offset. For a |
6871 | relocatable link we use the symbol's index. */ | |
25dbc73a AM |
6872 | bfd_vma toff; |
6873 | bfd_vma trampoff; | |
6874 | }; | |
7619e7c7 | 6875 | |
25dbc73a AM |
6876 | Elf_Internal_Shdr *symtab_hdr; |
6877 | bfd_byte *contents = NULL; | |
6878 | Elf_Internal_Sym *isymbuf = NULL; | |
6879 | Elf_Internal_Rela *internal_relocs = NULL; | |
5446cbdf | 6880 | Elf_Internal_Rela *irel, *irelend = NULL; |
d3e454b9 | 6881 | struct one_branch_fixup *branch_fixups = NULL; |
5446cbdf | 6882 | struct ppc_elf_relax_info *relax_info = NULL; |
9bc4e62b | 6883 | unsigned changes = 0; |
5446cbdf | 6884 | bfd_boolean workaround_change; |
d7128ce4 | 6885 | struct ppc_elf_link_hash_table *htab; |
d3e454b9 | 6886 | bfd_size_type trampbase, trampoff, newsize, picfixup_size; |
a6aa5195 | 6887 | asection *got2; |
50248c89 | 6888 | bfd_boolean maybe_pasted; |
7619e7c7 | 6889 | |
25dbc73a | 6890 | *again = FALSE; |
7619e7c7 | 6891 | |
5446cbdf | 6892 | /* No need to do anything with non-alloc or non-code sections. */ |
c87b5a93 | 6893 | if ((isec->flags & SEC_ALLOC) == 0 |
a8ad78a7 | 6894 | || (isec->flags & SEC_CODE) == 0 |
5446cbdf AM |
6895 | || (isec->flags & SEC_LINKER_CREATED) != 0 |
6896 | || isec->size < 4) | |
25dbc73a | 6897 | return TRUE; |
7619e7c7 | 6898 | |
c8a1f254 NS |
6899 | /* We cannot represent the required PIC relocs in the output, so don't |
6900 | do anything. The linker doesn't support mixing -shared and -r | |
6901 | anyway. */ | |
0e1862bb | 6902 | if (bfd_link_relocatable (link_info) && bfd_link_pic (link_info)) |
795bc6b3 | 6903 | return TRUE; |
5b914448 | 6904 | |
5446cbdf AM |
6905 | htab = ppc_elf_hash_table (link_info); |
6906 | if (htab == NULL) | |
6907 | return TRUE; | |
6908 | ||
6909 | isec->size = (isec->size + 3) & -4; | |
6910 | if (isec->rawsize == 0) | |
6911 | isec->rawsize = isec->size; | |
6912 | trampbase = isec->size; | |
6913 | ||
53291d1f AM |
6914 | BFD_ASSERT (isec->sec_info_type == SEC_INFO_TYPE_NONE |
6915 | || isec->sec_info_type == SEC_INFO_TYPE_TARGET); | |
6916 | isec->sec_info_type = SEC_INFO_TYPE_TARGET; | |
6917 | ||
d3e454b9 AM |
6918 | if (htab->params->ppc476_workaround |
6919 | || htab->params->pic_fixup > 0) | |
5446cbdf AM |
6920 | { |
6921 | if (elf_section_data (isec)->sec_info == NULL) | |
6922 | { | |
5446cbdf AM |
6923 | elf_section_data (isec)->sec_info |
6924 | = bfd_zalloc (abfd, sizeof (struct ppc_elf_relax_info)); | |
6925 | if (elf_section_data (isec)->sec_info == NULL) | |
6926 | return FALSE; | |
6927 | } | |
6928 | relax_info = elf_section_data (isec)->sec_info; | |
6929 | trampbase -= relax_info->workaround_size; | |
6930 | } | |
6931 | ||
50248c89 AM |
6932 | maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0 |
6933 | || strcmp (isec->output_section->name, ".fini") == 0); | |
25dbc73a | 6934 | /* Space for a branch around any trampolines. */ |
5446cbdf AM |
6935 | trampoff = trampbase; |
6936 | if (maybe_pasted && trampbase == isec->rawsize) | |
50248c89 | 6937 | trampoff += 4; |
7619e7c7 | 6938 | |
0ffa91dd | 6939 | symtab_hdr = &elf_symtab_hdr (abfd); |
d3e454b9 AM |
6940 | picfixup_size = 0; |
6941 | if (htab->params->branch_trampolines | |
6942 | || htab->params->pic_fixup > 0) | |
7619e7c7 | 6943 | { |
5446cbdf AM |
6944 | /* Get a copy of the native relocations. */ |
6945 | if (isec->reloc_count != 0) | |
25dbc73a | 6946 | { |
5446cbdf AM |
6947 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, |
6948 | link_info->keep_memory); | |
6949 | if (internal_relocs == NULL) | |
6950 | goto error_return; | |
25dbc73a | 6951 | } |
7619e7c7 | 6952 | |
5446cbdf AM |
6953 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
6954 | ||
6955 | irelend = internal_relocs + isec->reloc_count; | |
6956 | for (irel = internal_relocs; irel < irelend; irel++) | |
25dbc73a | 6957 | { |
5446cbdf AM |
6958 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); |
6959 | bfd_vma toff, roff; | |
6960 | asection *tsec; | |
d3e454b9 | 6961 | struct one_branch_fixup *f; |
5446cbdf | 6962 | size_t insn_offset = 0; |
d3e454b9 | 6963 | bfd_vma max_branch_offset = 0, val; |
5446cbdf AM |
6964 | bfd_byte *hit_addr; |
6965 | unsigned long t0; | |
6966 | struct elf_link_hash_entry *h; | |
6967 | struct plt_entry **plist; | |
6968 | unsigned char sym_type; | |
6969 | ||
6970 | switch (r_type) | |
6971 | { | |
6972 | case R_PPC_REL24: | |
6973 | case R_PPC_LOCAL24PC: | |
6974 | case R_PPC_PLTREL24: | |
6975 | max_branch_offset = 1 << 25; | |
6976 | break; | |
6977 | ||
6978 | case R_PPC_REL14: | |
6979 | case R_PPC_REL14_BRTAKEN: | |
6980 | case R_PPC_REL14_BRNTAKEN: | |
6981 | max_branch_offset = 1 << 15; | |
6982 | break; | |
7fce784e | 6983 | |
d3e454b9 AM |
6984 | case R_PPC_ADDR16_HA: |
6985 | if (htab->params->pic_fixup > 0) | |
6986 | break; | |
6987 | continue; | |
6988 | ||
5446cbdf AM |
6989 | default: |
6990 | continue; | |
6991 | } | |
6992 | ||
6993 | /* Get the value of the symbol referred to by the reloc. */ | |
6994 | h = NULL; | |
6995 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
25dbc73a | 6996 | { |
5446cbdf AM |
6997 | /* A local symbol. */ |
6998 | Elf_Internal_Sym *isym; | |
6999 | ||
7000 | /* Read this BFD's local symbols. */ | |
25dbc73a | 7001 | if (isymbuf == NULL) |
5446cbdf AM |
7002 | { |
7003 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
7004 | if (isymbuf == NULL) | |
7005 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
7006 | symtab_hdr->sh_info, 0, | |
7007 | NULL, NULL, NULL); | |
7008 | if (isymbuf == 0) | |
7009 | goto error_return; | |
7010 | } | |
7011 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
7012 | if (isym->st_shndx == SHN_UNDEF) | |
7013 | tsec = bfd_und_section_ptr; | |
7014 | else if (isym->st_shndx == SHN_ABS) | |
7015 | tsec = bfd_abs_section_ptr; | |
7016 | else if (isym->st_shndx == SHN_COMMON) | |
7017 | tsec = bfd_com_section_ptr; | |
7018 | else | |
7019 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7020 | ||
7021 | toff = isym->st_value; | |
7022 | sym_type = ELF_ST_TYPE (isym->st_info); | |
25dbc73a | 7023 | } |
25dbc73a | 7024 | else |
5446cbdf AM |
7025 | { |
7026 | /* Global symbol handling. */ | |
7027 | unsigned long indx; | |
7fce784e | 7028 | |
5446cbdf AM |
7029 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
7030 | h = elf_sym_hashes (abfd)[indx]; | |
7619e7c7 | 7031 | |
5446cbdf AM |
7032 | while (h->root.type == bfd_link_hash_indirect |
7033 | || h->root.type == bfd_link_hash_warning) | |
7034 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 7035 | |
5446cbdf AM |
7036 | if (h->root.type == bfd_link_hash_defined |
7037 | || h->root.type == bfd_link_hash_defweak) | |
7038 | { | |
7039 | tsec = h->root.u.def.section; | |
7040 | toff = h->root.u.def.value; | |
7041 | } | |
7042 | else if (h->root.type == bfd_link_hash_undefined | |
7043 | || h->root.type == bfd_link_hash_undefweak) | |
7044 | { | |
7045 | tsec = bfd_und_section_ptr; | |
0e1862bb | 7046 | toff = bfd_link_relocatable (link_info) ? indx : 0; |
5446cbdf AM |
7047 | } |
7048 | else | |
7049 | continue; | |
7050 | ||
9f7552cf AM |
7051 | /* If this branch is to __tls_get_addr then we may later |
7052 | optimise away the call. We won't be needing a long- | |
7053 | branch stub in that case. */ | |
0e1862bb | 7054 | if (bfd_link_executable (link_info) |
9f7552cf AM |
7055 | && h == htab->tls_get_addr |
7056 | && irel != internal_relocs) | |
7057 | { | |
7058 | unsigned long t_symndx = ELF32_R_SYM (irel[-1].r_info); | |
7059 | unsigned long t_rtype = ELF32_R_TYPE (irel[-1].r_info); | |
7060 | unsigned int tls_mask = 0; | |
7061 | ||
7062 | /* The previous reloc should be one of R_PPC_TLSGD or | |
7063 | R_PPC_TLSLD, or for older object files, a reloc | |
7064 | on the __tls_get_addr arg setup insn. Get tls | |
7065 | mask bits from the symbol on that reloc. */ | |
7066 | if (t_symndx < symtab_hdr->sh_info) | |
7067 | { | |
7068 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); | |
7069 | ||
7070 | if (local_got_offsets != NULL) | |
7071 | { | |
7072 | struct plt_entry **local_plt = (struct plt_entry **) | |
7073 | (local_got_offsets + symtab_hdr->sh_info); | |
7074 | char *lgot_masks = (char *) | |
7075 | (local_plt + symtab_hdr->sh_info); | |
7076 | tls_mask = lgot_masks[t_symndx]; | |
7077 | } | |
7078 | } | |
7079 | else | |
7080 | { | |
7081 | struct elf_link_hash_entry *th | |
7082 | = elf_sym_hashes (abfd)[t_symndx - symtab_hdr->sh_info]; | |
7083 | ||
7084 | while (th->root.type == bfd_link_hash_indirect | |
7085 | || th->root.type == bfd_link_hash_warning) | |
7086 | th = (struct elf_link_hash_entry *) th->root.u.i.link; | |
7087 | ||
7088 | tls_mask | |
7089 | = ((struct ppc_elf_link_hash_entry *) th)->tls_mask; | |
7090 | } | |
7091 | ||
7092 | /* The mask bits tell us if the call will be | |
7093 | optimised away. */ | |
7094 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0 | |
7095 | && (t_rtype == R_PPC_TLSGD | |
7096 | || t_rtype == R_PPC_GOT_TLSGD16 | |
7097 | || t_rtype == R_PPC_GOT_TLSGD16_LO)) | |
7098 | continue; | |
7099 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0 | |
7100 | && (t_rtype == R_PPC_TLSLD | |
7101 | || t_rtype == R_PPC_GOT_TLSLD16 | |
7102 | || t_rtype == R_PPC_GOT_TLSLD16_LO)) | |
7103 | continue; | |
7104 | } | |
7105 | ||
5446cbdf AM |
7106 | sym_type = h->type; |
7107 | } | |
7619e7c7 | 7108 | |
d3e454b9 AM |
7109 | if (r_type == R_PPC_ADDR16_HA) |
7110 | { | |
7111 | if (h != NULL | |
7112 | && !h->def_regular | |
7113 | && h->protected_def | |
7114 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
7115 | && ppc_elf_hash_entry (h)->has_addr16_lo) | |
7116 | picfixup_size += 12; | |
7117 | continue; | |
7118 | } | |
7119 | ||
5446cbdf AM |
7120 | /* The condition here under which we call find_plt_ent must |
7121 | match that in relocate_section. If we call find_plt_ent here | |
7122 | but not in relocate_section, or vice versa, then the branch | |
7123 | destination used here may be incorrect. */ | |
7124 | plist = NULL; | |
7125 | if (h != NULL) | |
25dbc73a | 7126 | { |
5446cbdf AM |
7127 | /* We know is_branch_reloc (r_type) is true. */ |
7128 | if (h->type == STT_GNU_IFUNC | |
7129 | || r_type == R_PPC_PLTREL24) | |
7130 | plist = &h->plt.plist; | |
25dbc73a | 7131 | } |
5446cbdf AM |
7132 | else if (sym_type == STT_GNU_IFUNC |
7133 | && elf_local_got_offsets (abfd) != NULL) | |
c8a1f254 | 7134 | { |
5446cbdf AM |
7135 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); |
7136 | struct plt_entry **local_plt = (struct plt_entry **) | |
7137 | (local_got_offsets + symtab_hdr->sh_info); | |
7138 | plist = local_plt + ELF32_R_SYM (irel->r_info); | |
c8a1f254 | 7139 | } |
5446cbdf | 7140 | if (plist != NULL) |
a9585d22 | 7141 | { |
5446cbdf AM |
7142 | bfd_vma addend = 0; |
7143 | struct plt_entry *ent; | |
7144 | ||
0e1862bb | 7145 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (link_info)) |
5446cbdf AM |
7146 | addend = irel->r_addend; |
7147 | ent = find_plt_ent (plist, got2, addend); | |
7148 | if (ent != NULL) | |
a9585d22 | 7149 | { |
5446cbdf AM |
7150 | if (htab->plt_type == PLT_NEW |
7151 | || h == NULL | |
7152 | || !htab->elf.dynamic_sections_created | |
7153 | || h->dynindx == -1) | |
7154 | { | |
7155 | tsec = htab->glink; | |
7156 | toff = ent->glink_offset; | |
7157 | } | |
7158 | else | |
7159 | { | |
7160 | tsec = htab->plt; | |
7161 | toff = ent->plt.offset; | |
7162 | } | |
de972ffa AM |
7163 | } |
7164 | } | |
de972ffa | 7165 | |
5446cbdf AM |
7166 | /* If the branch and target are in the same section, you have |
7167 | no hope of adding stubs. We'll error out later should the | |
7168 | branch overflow. */ | |
7169 | if (tsec == isec) | |
7170 | continue; | |
25dbc73a | 7171 | |
5446cbdf AM |
7172 | /* There probably isn't any reason to handle symbols in |
7173 | SEC_MERGE sections; SEC_MERGE doesn't seem a likely | |
7174 | attribute for a code section, and we are only looking at | |
7175 | branches. However, implement it correctly here as a | |
7176 | reference for other target relax_section functions. */ | |
7177 | if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE) | |
7178 | { | |
7179 | /* At this stage in linking, no SEC_MERGE symbol has been | |
7180 | adjusted, so all references to such symbols need to be | |
7181 | passed through _bfd_merged_section_offset. (Later, in | |
7182 | relocate_section, all SEC_MERGE symbols *except* for | |
7183 | section symbols have been adjusted.) | |
7184 | ||
7185 | gas may reduce relocations against symbols in SEC_MERGE | |
7186 | sections to a relocation against the section symbol when | |
7187 | the original addend was zero. When the reloc is against | |
7188 | a section symbol we should include the addend in the | |
7189 | offset passed to _bfd_merged_section_offset, since the | |
7190 | location of interest is the original symbol. On the | |
7191 | other hand, an access to "sym+addend" where "sym" is not | |
7192 | a section symbol should not include the addend; Such an | |
7193 | access is presumed to be an offset from "sym"; The | |
7194 | location of interest is just "sym". */ | |
7195 | if (sym_type == STT_SECTION) | |
7196 | toff += irel->r_addend; | |
7197 | ||
7198 | toff | |
7199 | = _bfd_merged_section_offset (abfd, &tsec, | |
7200 | elf_section_data (tsec)->sec_info, | |
7201 | toff); | |
7202 | ||
7203 | if (sym_type != STT_SECTION) | |
7204 | toff += irel->r_addend; | |
7205 | } | |
7206 | /* PLTREL24 addends are special. */ | |
7207 | else if (r_type != R_PPC_PLTREL24) | |
25dbc73a | 7208 | toff += irel->r_addend; |
7619e7c7 | 7209 | |
5446cbdf | 7210 | /* Attempted -shared link of non-pic code loses. */ |
0e1862bb | 7211 | if ((!bfd_link_relocatable (link_info) |
5446cbdf AM |
7212 | && tsec == bfd_und_section_ptr) |
7213 | || tsec->output_section == NULL | |
7214 | || (tsec->owner != NULL | |
7215 | && (tsec->owner->flags & BFD_PLUGIN) != 0)) | |
7216 | continue; | |
7619e7c7 | 7217 | |
5446cbdf | 7218 | roff = irel->r_offset; |
7de713b9 | 7219 | |
5446cbdf AM |
7220 | /* If the branch is in range, no need to do anything. */ |
7221 | if (tsec != bfd_und_section_ptr | |
0e1862bb | 7222 | && (!bfd_link_relocatable (link_info) |
5446cbdf AM |
7223 | /* A relocatable link may have sections moved during |
7224 | final link, so do not presume they remain in range. */ | |
7225 | || tsec->output_section == isec->output_section)) | |
7226 | { | |
7227 | bfd_vma symaddr, reladdr; | |
7619e7c7 | 7228 | |
5446cbdf AM |
7229 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; |
7230 | reladdr = isec->output_section->vma + isec->output_offset + roff; | |
7231 | if (symaddr - reladdr + max_branch_offset | |
7232 | < 2 * max_branch_offset) | |
7233 | continue; | |
7234 | } | |
01017ef8 | 7235 | |
5446cbdf | 7236 | /* Look for an existing fixup to this address. */ |
d3e454b9 | 7237 | for (f = branch_fixups; f ; f = f->next) |
5446cbdf AM |
7238 | if (f->tsec == tsec && f->toff == toff) |
7239 | break; | |
252b5132 | 7240 | |
5446cbdf AM |
7241 | if (f == NULL) |
7242 | { | |
7243 | size_t size; | |
7244 | unsigned long stub_rtype; | |
25dbc73a | 7245 | |
5446cbdf AM |
7246 | val = trampoff - roff; |
7247 | if (val >= max_branch_offset) | |
7248 | /* Oh dear, we can't reach a trampoline. Don't try to add | |
7249 | one. We'll report an error later. */ | |
7250 | continue; | |
252b5132 | 7251 | |
0e1862bb | 7252 | if (bfd_link_pic (link_info)) |
5446cbdf AM |
7253 | { |
7254 | size = 4 * ARRAY_SIZE (shared_stub_entry); | |
7255 | insn_offset = 12; | |
7256 | } | |
7257 | else | |
7258 | { | |
7259 | size = 4 * ARRAY_SIZE (stub_entry); | |
7260 | insn_offset = 0; | |
7261 | } | |
7262 | stub_rtype = R_PPC_RELAX; | |
7263 | if (tsec == htab->plt | |
7264 | || tsec == htab->glink) | |
7265 | { | |
7266 | stub_rtype = R_PPC_RELAX_PLT; | |
7267 | if (r_type == R_PPC_PLTREL24) | |
7268 | stub_rtype = R_PPC_RELAX_PLTREL24; | |
7269 | } | |
252b5132 | 7270 | |
5446cbdf AM |
7271 | /* Hijack the old relocation. Since we need two |
7272 | relocations for this use a "composite" reloc. */ | |
7273 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
7274 | stub_rtype); | |
7275 | irel->r_offset = trampoff + insn_offset; | |
7276 | if (r_type == R_PPC_PLTREL24 | |
7277 | && stub_rtype != R_PPC_RELAX_PLTREL24) | |
7278 | irel->r_addend = 0; | |
7279 | ||
7280 | /* Record the fixup so we don't do it again this section. */ | |
7281 | f = bfd_malloc (sizeof (*f)); | |
d3e454b9 | 7282 | f->next = branch_fixups; |
5446cbdf AM |
7283 | f->tsec = tsec; |
7284 | f->toff = toff; | |
7285 | f->trampoff = trampoff; | |
d3e454b9 | 7286 | branch_fixups = f; |
5446cbdf AM |
7287 | |
7288 | trampoff += size; | |
7289 | changes++; | |
25dbc73a AM |
7290 | } |
7291 | else | |
7292 | { | |
5446cbdf AM |
7293 | val = f->trampoff - roff; |
7294 | if (val >= max_branch_offset) | |
7295 | continue; | |
252b5132 | 7296 | |
5446cbdf AM |
7297 | /* Nop out the reloc, since we're finalizing things here. */ |
7298 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7299 | } | |
252b5132 | 7300 | |
5446cbdf AM |
7301 | /* Get the section contents. */ |
7302 | if (contents == NULL) | |
25dbc73a | 7303 | { |
5446cbdf AM |
7304 | /* Get cached copy if it exists. */ |
7305 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
7306 | contents = elf_section_data (isec)->this_hdr.contents; | |
25dbc73a | 7307 | /* Go get them off disk. */ |
5446cbdf | 7308 | else if (!bfd_malloc_and_get_section (abfd, isec, &contents)) |
25dbc73a AM |
7309 | goto error_return; |
7310 | } | |
252b5132 | 7311 | |
5446cbdf AM |
7312 | /* Fix up the existing branch to hit the trampoline. */ |
7313 | hit_addr = contents + roff; | |
7314 | switch (r_type) | |
7315 | { | |
7316 | case R_PPC_REL24: | |
7317 | case R_PPC_LOCAL24PC: | |
7318 | case R_PPC_PLTREL24: | |
7319 | t0 = bfd_get_32 (abfd, hit_addr); | |
7320 | t0 &= ~0x3fffffc; | |
7321 | t0 |= val & 0x3fffffc; | |
7322 | bfd_put_32 (abfd, t0, hit_addr); | |
7323 | break; | |
252b5132 | 7324 | |
5446cbdf AM |
7325 | case R_PPC_REL14: |
7326 | case R_PPC_REL14_BRTAKEN: | |
7327 | case R_PPC_REL14_BRNTAKEN: | |
7328 | t0 = bfd_get_32 (abfd, hit_addr); | |
7329 | t0 &= ~0xfffc; | |
7330 | t0 |= val & 0xfffc; | |
7331 | bfd_put_32 (abfd, t0, hit_addr); | |
7332 | break; | |
7333 | } | |
25dbc73a | 7334 | } |
252b5132 | 7335 | |
d3e454b9 | 7336 | while (branch_fixups != NULL) |
25dbc73a | 7337 | { |
d3e454b9 AM |
7338 | struct one_branch_fixup *f = branch_fixups; |
7339 | branch_fixups = branch_fixups->next; | |
25dbc73a AM |
7340 | free (f); |
7341 | } | |
5446cbdf | 7342 | } |
252b5132 | 7343 | |
5446cbdf AM |
7344 | workaround_change = FALSE; |
7345 | newsize = trampoff; | |
795bc6b3 | 7346 | if (htab->params->ppc476_workaround |
0e1862bb | 7347 | && (!bfd_link_relocatable (link_info) |
795bc6b3 | 7348 | || isec->output_section->alignment_power >= htab->params->pagesize_p2)) |
5446cbdf AM |
7349 | { |
7350 | bfd_vma addr, end_addr; | |
7351 | unsigned int crossings; | |
795bc6b3 | 7352 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf AM |
7353 | |
7354 | addr = isec->output_section->vma + isec->output_offset; | |
6128f9cf | 7355 | end_addr = addr + trampoff; |
5446cbdf | 7356 | addr &= -pagesize; |
795bc6b3 | 7357 | crossings = ((end_addr & -pagesize) - addr) >> htab->params->pagesize_p2; |
5446cbdf AM |
7358 | if (crossings != 0) |
7359 | { | |
7360 | /* Keep space aligned, to ensure the patch code itself does | |
7361 | not cross a page. Don't decrease size calculated on a | |
7362 | previous pass as otherwise we might never settle on a layout. */ | |
1e269e9b | 7363 | newsize = 15 - ((end_addr - 1) & 15); |
5446cbdf AM |
7364 | newsize += crossings * 16; |
7365 | if (relax_info->workaround_size < newsize) | |
7366 | { | |
7367 | relax_info->workaround_size = newsize; | |
7368 | workaround_change = TRUE; | |
5446cbdf AM |
7369 | } |
7370 | /* Ensure relocate_section is called. */ | |
7371 | isec->flags |= SEC_RELOC; | |
7372 | } | |
7373 | newsize = trampoff + relax_info->workaround_size; | |
7374 | } | |
7375 | ||
d3e454b9 AM |
7376 | if (htab->params->pic_fixup > 0) |
7377 | { | |
7378 | picfixup_size -= relax_info->picfixup_size; | |
7379 | if (picfixup_size != 0) | |
7380 | relax_info->picfixup_size += picfixup_size; | |
7381 | newsize += relax_info->picfixup_size; | |
7382 | } | |
7383 | ||
7384 | if (changes != 0 || picfixup_size != 0 || workaround_change) | |
5446cbdf AM |
7385 | isec->size = newsize; |
7386 | ||
25dbc73a AM |
7387 | if (isymbuf != NULL |
7388 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 7389 | { |
25dbc73a AM |
7390 | if (! link_info->keep_memory) |
7391 | free (isymbuf); | |
252b5132 | 7392 | else |
25dbc73a AM |
7393 | { |
7394 | /* Cache the symbols for elf_link_input_bfd. */ | |
7395 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
7396 | } | |
252b5132 RH |
7397 | } |
7398 | ||
25dbc73a AM |
7399 | if (contents != NULL |
7400 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7401 | { | |
53291d1f | 7402 | if (!changes && !link_info->keep_memory) |
25dbc73a AM |
7403 | free (contents); |
7404 | else | |
7405 | { | |
7406 | /* Cache the section contents for elf_link_input_bfd. */ | |
7407 | elf_section_data (isec)->this_hdr.contents = contents; | |
7408 | } | |
7409 | } | |
252b5132 | 7410 | |
d3e454b9 | 7411 | changes += picfixup_size; |
9bc4e62b | 7412 | if (changes != 0) |
25dbc73a | 7413 | { |
9bc4e62b NS |
7414 | /* Append sufficient NOP relocs so we can write out relocation |
7415 | information for the trampolines. */ | |
d4730f92 | 7416 | Elf_Internal_Shdr *rel_hdr; |
9bc4e62b NS |
7417 | Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) |
7418 | * sizeof (*new_relocs)); | |
7419 | unsigned ix; | |
5b914448 | 7420 | |
9bc4e62b NS |
7421 | if (!new_relocs) |
7422 | goto error_return; | |
7423 | memcpy (new_relocs, internal_relocs, | |
7424 | isec->reloc_count * sizeof (*new_relocs)); | |
7425 | for (ix = changes; ix--;) | |
7426 | { | |
7427 | irel = new_relocs + ix + isec->reloc_count; | |
7428 | ||
7429 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7430 | } | |
7431 | if (internal_relocs != elf_section_data (isec)->relocs) | |
25dbc73a | 7432 | free (internal_relocs); |
9bc4e62b NS |
7433 | elf_section_data (isec)->relocs = new_relocs; |
7434 | isec->reloc_count += changes; | |
d4730f92 BS |
7435 | rel_hdr = _bfd_elf_single_rel_hdr (isec); |
7436 | rel_hdr->sh_size += changes * rel_hdr->sh_entsize; | |
25dbc73a | 7437 | } |
5446cbdf AM |
7438 | else if (internal_relocs != NULL |
7439 | && elf_section_data (isec)->relocs != internal_relocs) | |
9bc4e62b | 7440 | free (internal_relocs); |
252b5132 | 7441 | |
5446cbdf | 7442 | *again = changes != 0 || workaround_change; |
b34976b6 | 7443 | return TRUE; |
25dbc73a AM |
7444 | |
7445 | error_return: | |
d3e454b9 | 7446 | while (branch_fixups != NULL) |
5446cbdf | 7447 | { |
d3e454b9 AM |
7448 | struct one_branch_fixup *f = branch_fixups; |
7449 | branch_fixups = branch_fixups->next; | |
5446cbdf AM |
7450 | free (f); |
7451 | } | |
25dbc73a AM |
7452 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) |
7453 | free (isymbuf); | |
7454 | if (contents != NULL | |
7455 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7456 | free (contents); | |
7457 | if (internal_relocs != NULL | |
7458 | && elf_section_data (isec)->relocs != internal_relocs) | |
7459 | free (internal_relocs); | |
7460 | return FALSE; | |
252b5132 | 7461 | } |
252b5132 | 7462 | \f |
8a696751 AM |
7463 | /* What to do when ld finds relocations against symbols defined in |
7464 | discarded sections. */ | |
7465 | ||
7466 | static unsigned int | |
7467 | ppc_elf_action_discarded (asection *sec) | |
7468 | { | |
7469 | if (strcmp (".fixup", sec->name) == 0) | |
7470 | return 0; | |
7471 | ||
7472 | if (strcmp (".got2", sec->name) == 0) | |
7473 | return 0; | |
7474 | ||
7475 | return _bfd_elf_default_action_discarded (sec); | |
7476 | } | |
c9a2f333 | 7477 | \f |
25dbc73a | 7478 | /* Fill in the address for a pointer generated in a linker section. */ |
252b5132 | 7479 | |
25dbc73a | 7480 | static bfd_vma |
76750a2f | 7481 | elf_finish_pointer_linker_section (bfd *input_bfd, |
25dbc73a AM |
7482 | elf_linker_section_t *lsect, |
7483 | struct elf_link_hash_entry *h, | |
7484 | bfd_vma relocation, | |
2bb04cf2 | 7485 | const Elf_Internal_Rela *rel) |
25dbc73a AM |
7486 | { |
7487 | elf_linker_section_pointers_t *linker_section_ptr; | |
252b5132 | 7488 | |
25dbc73a | 7489 | BFD_ASSERT (lsect != NULL); |
252b5132 | 7490 | |
25dbc73a | 7491 | if (h != NULL) |
252b5132 | 7492 | { |
25dbc73a AM |
7493 | /* Handle global symbol. */ |
7494 | struct ppc_elf_link_hash_entry *eh; | |
252b5132 | 7495 | |
25dbc73a | 7496 | eh = (struct ppc_elf_link_hash_entry *) h; |
76750a2f AM |
7497 | BFD_ASSERT (eh->elf.def_regular); |
7498 | linker_section_ptr = eh->linker_section_pointer; | |
25dbc73a AM |
7499 | } |
7500 | else | |
7501 | { | |
7502 | /* Handle local symbol. */ | |
7503 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
76750a2f | 7504 | |
0c8d6e5c | 7505 | BFD_ASSERT (is_ppc_elf (input_bfd)); |
25dbc73a | 7506 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); |
76750a2f AM |
7507 | linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; |
7508 | } | |
252b5132 | 7509 | |
76750a2f AM |
7510 | linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, |
7511 | rel->r_addend, | |
7512 | lsect); | |
7513 | BFD_ASSERT (linker_section_ptr != NULL); | |
25dbc73a | 7514 | |
76750a2f AM |
7515 | /* Offset will always be a multiple of four, so use the bottom bit |
7516 | as a "written" flag. */ | |
7517 | if ((linker_section_ptr->offset & 1) == 0) | |
7518 | { | |
7519 | bfd_put_32 (lsect->section->owner, | |
7520 | relocation + linker_section_ptr->addend, | |
7521 | lsect->section->contents + linker_section_ptr->offset); | |
7522 | linker_section_ptr->offset += 1; | |
252b5132 RH |
7523 | } |
7524 | ||
bd6c6e2b AM |
7525 | relocation = (lsect->section->output_section->vma |
7526 | + lsect->section->output_offset | |
76750a2f | 7527 | + linker_section_ptr->offset - 1 |
bd6c6e2b | 7528 | - SYM_VAL (lsect->sym)); |
252b5132 | 7529 | |
25dbc73a AM |
7530 | #ifdef DEBUG |
7531 | fprintf (stderr, | |
7532 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
7533 | lsect->name, (long) relocation, (long) relocation); | |
7534 | #endif | |
252b5132 | 7535 | |
bd6c6e2b | 7536 | return relocation; |
252b5132 | 7537 | } |
25dbc73a | 7538 | |
e054468f AM |
7539 | #define PPC_LO(v) ((v) & 0xffff) |
7540 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7541 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7542 | ||
7543 | static void | |
a7f2871e | 7544 | write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p, |
e054468f AM |
7545 | struct bfd_link_info *info) |
7546 | { | |
7547 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
7548 | bfd *output_bfd = info->output_bfd; | |
7549 | bfd_vma plt; | |
e054468f AM |
7550 | |
7551 | plt = ((ent->plt.offset & ~1) | |
7552 | + plt_sec->output_section->vma | |
7553 | + plt_sec->output_offset); | |
e054468f | 7554 | |
0e1862bb | 7555 | if (bfd_link_pic (info)) |
e054468f AM |
7556 | { |
7557 | bfd_vma got = 0; | |
7558 | ||
7559 | if (ent->addend >= 32768) | |
7560 | got = (ent->addend | |
7561 | + ent->sec->output_section->vma | |
7562 | + ent->sec->output_offset); | |
7563 | else if (htab->elf.hgot != NULL) | |
7564 | got = SYM_VAL (htab->elf.hgot); | |
7565 | ||
7566 | plt -= got; | |
7567 | ||
7568 | if (plt + 0x8000 < 0x10000) | |
7569 | { | |
7570 | bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); | |
7571 | p += 4; | |
7572 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7573 | p += 4; | |
7574 | bfd_put_32 (output_bfd, BCTR, p); | |
7575 | p += 4; | |
da3a2088 | 7576 | bfd_put_32 (output_bfd, htab->params->ppc476_workaround ? BA : NOP, p); |
e054468f AM |
7577 | p += 4; |
7578 | } | |
7579 | else | |
7580 | { | |
7581 | bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); | |
7582 | p += 4; | |
7583 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7584 | p += 4; | |
7585 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7586 | p += 4; | |
7587 | bfd_put_32 (output_bfd, BCTR, p); | |
7588 | p += 4; | |
7589 | } | |
7590 | } | |
7591 | else | |
7592 | { | |
7593 | bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); | |
7594 | p += 4; | |
7595 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7596 | p += 4; | |
7597 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7598 | p += 4; | |
7599 | bfd_put_32 (output_bfd, BCTR, p); | |
7600 | p += 4; | |
7601 | } | |
7602 | } | |
7603 | ||
bd6c6e2b AM |
7604 | /* Return true if symbol is defined statically. */ |
7605 | ||
7606 | static bfd_boolean | |
7607 | is_static_defined (struct elf_link_hash_entry *h) | |
7608 | { | |
7609 | return ((h->root.type == bfd_link_hash_defined | |
7610 | || h->root.type == bfd_link_hash_defweak) | |
7611 | && h->root.u.def.section != NULL | |
7612 | && h->root.u.def.section->output_section != NULL); | |
7613 | } | |
7614 | ||
2d0f3896 AM |
7615 | /* If INSN is an opcode that may be used with an @tls operand, return |
7616 | the transformed insn for TLS optimisation, otherwise return 0. If | |
7617 | REG is non-zero only match an insn with RB or RA equal to REG. */ | |
7618 | ||
7619 | unsigned int | |
7620 | _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg) | |
7621 | { | |
7622 | unsigned int rtra; | |
7623 | ||
7624 | if ((insn & (0x3f << 26)) != 31 << 26) | |
7625 | return 0; | |
7626 | ||
7627 | if (reg == 0 || ((insn >> 11) & 0x1f) == reg) | |
7628 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7629 | else if (((insn >> 16) & 0x1f) == reg) | |
7630 | rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5); | |
7631 | else | |
7632 | return 0; | |
7633 | ||
7634 | if ((insn & (0x3ff << 1)) == 266 << 1) | |
7635 | /* add -> addi. */ | |
7636 | insn = 14 << 26; | |
7637 | else if ((insn & (0x1f << 1)) == 23 << 1 | |
7638 | && ((insn & (0x1f << 6)) < 14 << 6 | |
7639 | || ((insn & (0x1f << 6)) >= 16 << 6 | |
7640 | && (insn & (0x1f << 6)) < 24 << 6))) | |
7641 | /* load and store indexed -> dform. */ | |
7642 | insn = (32 | ((insn >> 6) & 0x1f)) << 26; | |
7643 | else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1) | |
7644 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7645 | insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1); | |
7646 | else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1) | |
7647 | /* lwax -> lwa. */ | |
7648 | insn = (58 << 26) | 2; | |
7649 | else | |
7650 | return 0; | |
7651 | insn |= rtra; | |
7652 | return insn; | |
7653 | } | |
7654 | ||
766bc656 AM |
7655 | /* If INSN is an opcode that may be used with an @tprel operand, return |
7656 | the transformed insn for an undefined weak symbol, ie. with the | |
7657 | thread pointer REG operand removed. Otherwise return 0. */ | |
7658 | ||
7659 | unsigned int | |
7660 | _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg) | |
7661 | { | |
7662 | if ((insn & (0x1f << 16)) == reg << 16 | |
7663 | && ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
7664 | || (insn & (0x3f << 26)) == 15u << 26 /* addis */ | |
7665 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
7666 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
7667 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
7668 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
7669 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
7670 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
7671 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
7672 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
7673 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
7674 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
7675 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
7676 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
7677 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
7678 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
7679 | && (insn & 3) != 1) | |
7680 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
7681 | && ((insn & 3) == 0 || (insn & 3) == 3)))) | |
7682 | { | |
7683 | insn &= ~(0x1f << 16); | |
7684 | } | |
7685 | else if ((insn & (0x1f << 21)) == reg << 21 | |
7686 | && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */ | |
7687 | || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */ | |
7688 | || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */)) | |
7689 | { | |
7690 | insn &= ~(0x1f << 21); | |
7691 | insn |= (insn & (0x1f << 16)) << 5; | |
7692 | if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */) | |
7693 | insn -= 2 >> 26; /* convert to ori,oris */ | |
7694 | } | |
7695 | else | |
7696 | insn = 0; | |
7697 | return insn; | |
7698 | } | |
7699 | ||
1fe532cf AM |
7700 | static bfd_boolean |
7701 | is_insn_ds_form (unsigned int insn) | |
7702 | { | |
7703 | return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */ | |
7704 | || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */ | |
7705 | || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */ | |
7706 | || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */); | |
7707 | } | |
7708 | ||
7709 | static bfd_boolean | |
7710 | is_insn_dq_form (unsigned int insn) | |
7711 | { | |
a680de9a PB |
7712 | return ((insn & (0x3f << 26)) == 56u << 26 /* lq */ |
7713 | || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */ | |
7714 | && (insn & 3) == 1)); | |
1fe532cf AM |
7715 | } |
7716 | ||
252b5132 RH |
7717 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7718 | to handle the relocations for a section. | |
7719 | ||
7720 | The relocs are always passed as Rela structures; if the section | |
7721 | actually uses Rel structures, the r_addend field will always be | |
7722 | zero. | |
7723 | ||
7724 | This function is responsible for adjust the section contents as | |
7725 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7726 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
7727 | necessary. |
7728 | ||
7729 | This function does not have to worry about setting the reloc | |
7730 | address or the reloc symbol index. | |
7731 | ||
7732 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7733 | ||
7734 | LOCAL_SECTIONS is an array giving the section in the input file | |
7735 | corresponding to the st_shndx field of each local symbol. | |
7736 | ||
7737 | The global hash table entry for the global symbols can be found | |
7738 | via elf_sym_hashes (input_bfd). | |
7739 | ||
1049f94e | 7740 | When generating relocatable output, this function must handle |
252b5132 RH |
7741 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7742 | going to be the section symbol corresponding to the output | |
7743 | section, which means that the addend must be adjusted | |
7744 | accordingly. */ | |
7745 | ||
b34976b6 | 7746 | static bfd_boolean |
55fd94b0 AM |
7747 | ppc_elf_relocate_section (bfd *output_bfd, |
7748 | struct bfd_link_info *info, | |
7749 | bfd *input_bfd, | |
7750 | asection *input_section, | |
7751 | bfd_byte *contents, | |
7752 | Elf_Internal_Rela *relocs, | |
7753 | Elf_Internal_Sym *local_syms, | |
7754 | asection **local_sections) | |
252b5132 | 7755 | { |
7619e7c7 AM |
7756 | Elf_Internal_Shdr *symtab_hdr; |
7757 | struct elf_link_hash_entry **sym_hashes; | |
7758 | struct ppc_elf_link_hash_table *htab; | |
7759 | Elf_Internal_Rela *rel; | |
c316a17c | 7760 | Elf_Internal_Rela *wrel; |
7619e7c7 AM |
7761 | Elf_Internal_Rela *relend; |
7762 | Elf_Internal_Rela outrel; | |
f95f8542 | 7763 | asection *got2; |
252b5132 | 7764 | bfd_vma *local_got_offsets; |
b34976b6 | 7765 | bfd_boolean ret = TRUE; |
4fe5ca5b | 7766 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
3348747a | 7767 | bfd_boolean is_vxworks_tls; |
d3e454b9 AM |
7768 | unsigned int picfixup_size = 0; |
7769 | struct ppc_elf_relax_info *relax_info = NULL; | |
b34976b6 | 7770 | |
252b5132 | 7771 | #ifdef DEBUG |
d003868e AM |
7772 | _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " |
7773 | "%ld relocations%s", | |
7774 | input_bfd, input_section, | |
7775 | (long) input_section->reloc_count, | |
0e1862bb | 7776 | (bfd_link_relocatable (info)) ? " (relocatable)" : ""); |
252b5132 RH |
7777 | #endif |
7778 | ||
a6aa5195 AM |
7779 | got2 = bfd_get_section_by_name (input_bfd, ".got2"); |
7780 | ||
e47cd125 | 7781 | /* Initialize howto table if not already done. */ |
8da6118f | 7782 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
7783 | ppc_elf_howto_init (); |
7784 | ||
7619e7c7 | 7785 | htab = ppc_elf_hash_table (info); |
252b5132 | 7786 | local_got_offsets = elf_local_got_offsets (input_bfd); |
0ffa91dd | 7787 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
7619e7c7 | 7788 | sym_hashes = elf_sym_hashes (input_bfd); |
3348747a NS |
7789 | /* We have to handle relocations in vxworks .tls_vars sections |
7790 | specially, because the dynamic loader is 'weird'. */ | |
0e1862bb | 7791 | is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info) |
3348747a NS |
7792 | && !strcmp (input_section->output_section->name, |
7793 | ".tls_vars")); | |
d3e454b9 AM |
7794 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET) |
7795 | relax_info = elf_section_data (input_section)->sec_info; | |
c316a17c | 7796 | rel = wrel = relocs; |
7619e7c7 | 7797 | relend = relocs + input_section->reloc_count; |
c316a17c | 7798 | for (; rel < relend; wrel++, rel++) |
252b5132 | 7799 | { |
7619e7c7 AM |
7800 | enum elf_ppc_reloc_type r_type; |
7801 | bfd_vma addend; | |
7802 | bfd_reloc_status_type r; | |
7803 | Elf_Internal_Sym *sym; | |
7804 | asection *sec; | |
7805 | struct elf_link_hash_entry *h; | |
7806 | const char *sym_name; | |
252b5132 RH |
7807 | reloc_howto_type *howto; |
7808 | unsigned long r_symndx; | |
7809 | bfd_vma relocation; | |
91d6fa6a | 7810 | bfd_vma branch_bit, from; |
7619e7c7 AM |
7811 | bfd_boolean unresolved_reloc; |
7812 | bfd_boolean warned; | |
7813 | unsigned int tls_type, tls_mask, tls_gd; | |
e054468f | 7814 | struct plt_entry **ifunc; |
86c95733 | 7815 | struct reloc_howto_struct alt_howto; |
7619e7c7 | 7816 | |
c316a17c | 7817 | again: |
55fd94b0 AM |
7818 | r_type = ELF32_R_TYPE (rel->r_info); |
7819 | sym = NULL; | |
7820 | sec = NULL; | |
7821 | h = NULL; | |
7619e7c7 AM |
7822 | unresolved_reloc = FALSE; |
7823 | warned = FALSE; | |
252b5132 | 7824 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 7825 | |
252b5132 RH |
7826 | if (r_symndx < symtab_hdr->sh_info) |
7827 | { | |
7828 | sym = local_syms + r_symndx; | |
7829 | sec = local_sections[r_symndx]; | |
26c61ae5 | 7830 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
252b5132 | 7831 | |
8517fae7 | 7832 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
7833 | } |
7834 | else | |
7835 | { | |
62d887d4 L |
7836 | bfd_boolean ignored; |
7837 | ||
b2a8e766 AM |
7838 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
7839 | r_symndx, symtab_hdr, sym_hashes, | |
7840 | h, sec, relocation, | |
62d887d4 | 7841 | unresolved_reloc, warned, ignored); |
9abc968f | 7842 | |
252b5132 | 7843 | sym_name = h->root.root.string; |
7619e7c7 AM |
7844 | } |
7845 | ||
dbaa2011 | 7846 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
7847 | { |
7848 | /* For relocs against symbols from removed linkonce sections, | |
7849 | or sections discarded by a linker script, we just want the | |
7850 | section contents zeroed. Avoid any special processing. */ | |
7851 | howto = NULL; | |
7852 | if (r_type < R_PPC_max) | |
7853 | howto = ppc_elf_howto_table[r_type]; | |
c316a17c AM |
7854 | |
7855 | _bfd_clear_contents (howto, input_bfd, input_section, | |
7856 | contents + rel->r_offset); | |
7857 | wrel->r_offset = rel->r_offset; | |
7858 | wrel->r_info = 0; | |
7859 | wrel->r_addend = 0; | |
7860 | ||
7861 | /* For ld -r, remove relocations in debug sections against | |
7862 | sections defined in discarded sections. Not done for | |
7863 | non-debug to preserve relocs in .eh_frame which the | |
7864 | eh_frame editing code expects to be present. */ | |
7865 | if (bfd_link_relocatable (info) | |
7866 | && (input_section->flags & SEC_DEBUGGING)) | |
7867 | wrel--; | |
7868 | ||
7869 | continue; | |
ab96bf03 AM |
7870 | } |
7871 | ||
0e1862bb | 7872 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
7873 | { |
7874 | if (got2 != NULL | |
7875 | && r_type == R_PPC_PLTREL24 | |
f75e0e33 | 7876 | && rel->r_addend != 0) |
ab96bf03 AM |
7877 | { |
7878 | /* R_PPC_PLTREL24 is rather special. If non-zero, the | |
7879 | addend specifies the GOT pointer offset within .got2. */ | |
7880 | rel->r_addend += got2->output_offset; | |
7881 | } | |
53291d1f AM |
7882 | if (r_type != R_PPC_RELAX_PLT |
7883 | && r_type != R_PPC_RELAX_PLTREL24 | |
7884 | && r_type != R_PPC_RELAX) | |
c316a17c | 7885 | goto copy_reloc; |
ab96bf03 AM |
7886 | } |
7887 | ||
7619e7c7 AM |
7888 | /* TLS optimizations. Replace instruction sequences and relocs |
7889 | based on information we collected in tls_optimize. We edit | |
7890 | RELOCS so that --emit-relocs will output something sensible | |
7891 | for the final instruction stream. */ | |
7892 | tls_mask = 0; | |
7893 | tls_gd = 0; | |
727fc41e AM |
7894 | if (h != NULL) |
7895 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
7896 | else if (local_got_offsets != NULL) | |
7619e7c7 | 7897 | { |
e054468f | 7898 | struct plt_entry **local_plt; |
727fc41e | 7899 | char *lgot_masks; |
e054468f AM |
7900 | local_plt |
7901 | = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info); | |
7902 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
727fc41e | 7903 | tls_mask = lgot_masks[r_symndx]; |
7619e7c7 AM |
7904 | } |
7905 | ||
7906 | /* Ensure reloc mapping code below stays sane. */ | |
7907 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
7908 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
7909 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
7910 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
7911 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
7912 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
7913 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
7914 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
7915 | abort (); | |
7916 | switch (r_type) | |
7917 | { | |
7918 | default: | |
7919 | break; | |
7920 | ||
7921 | case R_PPC_GOT_TPREL16: | |
7922 | case R_PPC_GOT_TPREL16_LO: | |
e054468f | 7923 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7924 | && (tls_mask & TLS_TPREL) == 0) |
7925 | { | |
7926 | bfd_vma insn; | |
91d6fa6a | 7927 | |
c316a17c AM |
7928 | insn = bfd_get_32 (output_bfd, |
7929 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7930 | insn &= 31 << 21; |
7931 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
c316a17c AM |
7932 | bfd_put_32 (output_bfd, insn, |
7933 | contents + rel->r_offset - d_offset); | |
7619e7c7 AM |
7934 | r_type = R_PPC_TPREL16_HA; |
7935 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7936 | } | |
7937 | break; | |
7938 | ||
7939 | case R_PPC_TLS: | |
e054468f | 7940 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7941 | && (tls_mask & TLS_TPREL) == 0) |
7942 | { | |
2d0f3896 AM |
7943 | bfd_vma insn; |
7944 | ||
7619e7c7 | 7945 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
2d0f3896 AM |
7946 | insn = _bfd_elf_ppc_at_tls_transform (insn, 2); |
7947 | if (insn == 0) | |
7619e7c7 | 7948 | abort (); |
7619e7c7 AM |
7949 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
7950 | r_type = R_PPC_TPREL16_LO; | |
7951 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4fe5ca5b | 7952 | |
7619e7c7 | 7953 | /* Was PPC_TLS which sits on insn boundary, now |
4fe5ca5b GM |
7954 | PPC_TPREL16_LO which is at low-order half-word. */ |
7955 | rel->r_offset += d_offset; | |
7619e7c7 AM |
7956 | } |
7957 | break; | |
7958 | ||
7959 | case R_PPC_GOT_TLSGD16_HI: | |
7960 | case R_PPC_GOT_TLSGD16_HA: | |
7961 | tls_gd = TLS_TPRELGD; | |
e054468f | 7962 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
7619e7c7 AM |
7963 | goto tls_gdld_hi; |
7964 | break; | |
7965 | ||
7966 | case R_PPC_GOT_TLSLD16_HI: | |
7967 | case R_PPC_GOT_TLSLD16_HA: | |
e054468f | 7968 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 AM |
7969 | { |
7970 | tls_gdld_hi: | |
7971 | if ((tls_mask & tls_gd) != 0) | |
7972 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
7973 | + R_PPC_GOT_TPREL16); | |
7974 | else | |
7975 | { | |
4fe5ca5b | 7976 | rel->r_offset -= d_offset; |
b86ac8e3 | 7977 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
7619e7c7 AM |
7978 | r_type = R_PPC_NONE; |
7979 | } | |
7980 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7981 | } | |
7982 | break; | |
7983 | ||
7984 | case R_PPC_GOT_TLSGD16: | |
7985 | case R_PPC_GOT_TLSGD16_LO: | |
7986 | tls_gd = TLS_TPRELGD; | |
e054468f | 7987 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
b7fcf6f6 | 7988 | goto tls_ldgd_opt; |
7619e7c7 AM |
7989 | break; |
7990 | ||
7991 | case R_PPC_GOT_TLSLD16: | |
7992 | case R_PPC_GOT_TLSLD16_LO: | |
e054468f | 7993 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 | 7994 | { |
3a71aa26 | 7995 | unsigned int insn1, insn2; |
b7fcf6f6 | 7996 | bfd_vma offset; |
7619e7c7 | 7997 | |
b7fcf6f6 | 7998 | tls_ldgd_opt: |
727fc41e AM |
7999 | offset = (bfd_vma) -1; |
8000 | /* If not using the newer R_PPC_TLSGD/LD to mark | |
8001 | __tls_get_addr calls, we must trust that the call | |
8002 | stays with its arg setup insns, ie. that the next | |
8003 | reloc is the __tls_get_addr call associated with | |
8004 | the current reloc. Edit both insns. */ | |
8005 | if (input_section->has_tls_get_addr_call | |
8006 | && rel + 1 < relend | |
8007 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
8008 | htab->tls_get_addr)) | |
8009 | offset = rel[1].r_offset; | |
b86ac8e3 AM |
8010 | /* We read the low GOT_TLS insn because we need to keep |
8011 | the destination reg. It may be something other than | |
8012 | the usual r3, and moved to r3 before the call by | |
8013 | intervening code. */ | |
8014 | insn1 = bfd_get_32 (output_bfd, | |
8015 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8016 | if ((tls_mask & tls_gd) != 0) |
8017 | { | |
8018 | /* IE */ | |
b86ac8e3 | 8019 | insn1 &= (0x1f << 21) | (0x1f << 16); |
b7fcf6f6 | 8020 | insn1 |= 32 << 26; /* lwz */ |
727fc41e AM |
8021 | if (offset != (bfd_vma) -1) |
8022 | { | |
f58d5a2d | 8023 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8024 | insn2 = 0x7c631214; /* add 3,3,2 */ |
8025 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8026 | } | |
b7fcf6f6 AM |
8027 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) |
8028 | + R_PPC_GOT_TPREL16); | |
8029 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8030 | } | |
8031 | else | |
8032 | { | |
8033 | /* LE */ | |
b86ac8e3 AM |
8034 | insn1 &= 0x1f << 21; |
8035 | insn1 |= 0x3c020000; /* addis r,2,0 */ | |
7619e7c7 AM |
8036 | if (tls_gd == 0) |
8037 | { | |
b7fcf6f6 | 8038 | /* Was an LD reloc. */ |
1d483afe AM |
8039 | for (r_symndx = 0; |
8040 | r_symndx < symtab_hdr->sh_info; | |
8041 | r_symndx++) | |
8042 | if (local_sections[r_symndx] == sec) | |
8043 | break; | |
8044 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8045 | r_symndx = STN_UNDEF; |
b7fcf6f6 | 8046 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8047 | if (r_symndx != STN_UNDEF) |
1d483afe AM |
8048 | rel->r_addend -= (local_syms[r_symndx].st_value |
8049 | + sec->output_offset | |
8050 | + sec->output_section->vma); | |
7619e7c7 | 8051 | } |
b7fcf6f6 AM |
8052 | r_type = R_PPC_TPREL16_HA; |
8053 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
727fc41e AM |
8054 | if (offset != (bfd_vma) -1) |
8055 | { | |
8056 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8057 | rel[1].r_offset = offset + d_offset; | |
8058 | rel[1].r_addend = rel->r_addend; | |
8059 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8060 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8061 | } | |
b7fcf6f6 AM |
8062 | } |
8063 | bfd_put_32 (output_bfd, insn1, | |
8064 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
8065 | if (tls_gd == 0) |
8066 | { | |
8067 | /* We changed the symbol on an LD reloc. Start over | |
8068 | in order to get h, sym, sec etc. right. */ | |
c316a17c | 8069 | goto again; |
7619e7c7 | 8070 | } |
252b5132 | 8071 | } |
7619e7c7 | 8072 | break; |
727fc41e AM |
8073 | |
8074 | case R_PPC_TLSGD: | |
e054468f | 8075 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
727fc41e AM |
8076 | { |
8077 | unsigned int insn2; | |
8078 | bfd_vma offset = rel->r_offset; | |
8079 | ||
8080 | if ((tls_mask & TLS_TPRELGD) != 0) | |
8081 | { | |
8082 | /* IE */ | |
8083 | r_type = R_PPC_NONE; | |
8084 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
8085 | } | |
8086 | else | |
8087 | { | |
8088 | /* LE */ | |
8089 | r_type = R_PPC_TPREL16_LO; | |
8090 | rel->r_offset += d_offset; | |
8091 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8092 | } | |
8093 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
8094 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
8095 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8096 | BFD_ASSERT (offset == rel[1].r_offset); | |
f58d5a2d | 8097 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
8098 | } |
8099 | break; | |
8100 | ||
8101 | case R_PPC_TLSLD: | |
e054468f | 8102 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
727fc41e AM |
8103 | { |
8104 | unsigned int insn2; | |
8105 | ||
8106 | for (r_symndx = 0; | |
8107 | r_symndx < symtab_hdr->sh_info; | |
8108 | r_symndx++) | |
8109 | if (local_sections[r_symndx] == sec) | |
8110 | break; | |
8111 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 8112 | r_symndx = STN_UNDEF; |
727fc41e | 8113 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 8114 | if (r_symndx != STN_UNDEF) |
727fc41e AM |
8115 | rel->r_addend -= (local_syms[r_symndx].st_value |
8116 | + sec->output_offset | |
8117 | + sec->output_section->vma); | |
8118 | ||
8119 | rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
8120 | rel->r_offset += d_offset; | |
8121 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
8122 | bfd_put_32 (output_bfd, insn2, | |
8123 | contents + rel->r_offset - d_offset); | |
8124 | /* Zap the reloc on the _tls_get_addr call too. */ | |
8125 | BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); | |
f58d5a2d | 8126 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
c316a17c | 8127 | goto again; |
727fc41e AM |
8128 | } |
8129 | break; | |
7619e7c7 AM |
8130 | } |
8131 | ||
8132 | /* Handle other relocations that tweak non-addend part of insn. */ | |
8133 | branch_bit = 0; | |
8134 | switch (r_type) | |
8135 | { | |
8136 | default: | |
8137 | break; | |
8138 | ||
8139 | /* Branch taken prediction relocations. */ | |
8140 | case R_PPC_ADDR14_BRTAKEN: | |
8141 | case R_PPC_REL14_BRTAKEN: | |
8142 | branch_bit = BRANCH_PREDICT_BIT; | |
8143 | /* Fall thru */ | |
8144 | ||
4cc11e76 | 8145 | /* Branch not taken prediction relocations. */ |
7619e7c7 AM |
8146 | case R_PPC_ADDR14_BRNTAKEN: |
8147 | case R_PPC_REL14_BRNTAKEN: | |
91d6fa6a NC |
8148 | { |
8149 | bfd_vma insn; | |
7619e7c7 | 8150 | |
91d6fa6a NC |
8151 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
8152 | insn &= ~BRANCH_PREDICT_BIT; | |
8153 | insn |= branch_bit; | |
7619e7c7 | 8154 | |
91d6fa6a NC |
8155 | from = (rel->r_offset |
8156 | + input_section->output_offset | |
8157 | + input_section->output_section->vma); | |
7619e7c7 | 8158 | |
91d6fa6a NC |
8159 | /* Invert 'y' bit if not the default. */ |
8160 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
8161 | insn ^= BRANCH_PREDICT_BIT; | |
8162 | ||
8163 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
8164 | break; | |
8165 | } | |
252b5132 RH |
8166 | } |
8167 | ||
d3e454b9 AM |
8168 | if (ELIMINATE_COPY_RELOCS |
8169 | && h != NULL | |
8170 | && !h->def_regular | |
8171 | && h->protected_def | |
8172 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8173 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8174 | && htab->params->pic_fixup > 0) | |
8175 | { | |
8176 | /* Convert lis;addi or lis;load/store accessing a protected | |
8177 | variable defined in a shared library to PIC. */ | |
8178 | unsigned int insn; | |
8179 | ||
8180 | if (r_type == R_PPC_ADDR16_HA) | |
8181 | { | |
8182 | insn = bfd_get_32 (output_bfd, | |
8183 | contents + rel->r_offset - d_offset); | |
8184 | if ((insn & (0x3f << 26)) == (15u << 26) | |
8185 | && (insn & (0x1f << 16)) == 0 /* lis */) | |
8186 | { | |
8187 | bfd_byte *p; | |
8188 | bfd_vma off; | |
8189 | bfd_vma got_addr; | |
8190 | ||
8191 | p = (contents + input_section->size | |
8192 | - relax_info->workaround_size | |
8193 | - relax_info->picfixup_size | |
8194 | + picfixup_size); | |
8195 | off = (p - contents) - (rel->r_offset - d_offset); | |
8196 | if (off > 0x1fffffc || (off & 3) != 0) | |
8197 | info->callbacks->einfo | |
8198 | (_("%P: %H: fixup branch overflow\n"), | |
8199 | input_bfd, input_section, rel->r_offset); | |
8200 | ||
8201 | bfd_put_32 (output_bfd, B | off, | |
8202 | contents + rel->r_offset - d_offset); | |
8203 | got_addr = (htab->got->output_section->vma | |
8204 | + htab->got->output_offset | |
8205 | + (h->got.offset & ~1)); | |
c316a17c AM |
8206 | wrel->r_offset = (p - contents) + d_offset; |
8207 | wrel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_HA); | |
8208 | wrel->r_addend = got_addr; | |
d3e454b9 AM |
8209 | insn &= ~0xffff; |
8210 | insn |= ((unsigned int )(got_addr + 0x8000) >> 16) & 0xffff; | |
8211 | bfd_put_32 (output_bfd, insn, p); | |
8212 | ||
8213 | /* Convert lis to lwz, loading address from GOT. */ | |
8214 | insn &= ~0xffff; | |
8215 | insn ^= (32u ^ 15u) << 26; | |
8216 | insn |= (insn & (0x1f << 21)) >> 5; | |
8217 | insn |= got_addr & 0xffff; | |
8218 | bfd_put_32 (output_bfd, insn, p + 4); | |
8219 | ||
8220 | bfd_put_32 (output_bfd, B | ((-4 - off) & 0x3ffffff), p + 8); | |
8221 | picfixup_size += 12; | |
8222 | ||
8223 | /* Use one of the spare relocs, so --emit-relocs | |
8224 | output is reasonable. */ | |
8225 | memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); | |
c316a17c AM |
8226 | wrel++, rel++; |
8227 | rel->r_offset = wrel[-1].r_offset + 4; | |
d3e454b9 | 8228 | rel->r_info = ELF32_R_INFO (0, R_PPC_ADDR16_LO); |
c316a17c | 8229 | rel->r_addend = wrel[-1].r_addend; |
d3e454b9 AM |
8230 | |
8231 | /* Continue on as if we had a got reloc, to output | |
8232 | dynamic reloc. */ | |
8233 | r_type = R_PPC_GOT16_LO; | |
8234 | } | |
8235 | else | |
8236 | info->callbacks->einfo | |
8237 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8238 | input_bfd, input_section, rel->r_offset, | |
8239 | "R_PPC_ADDR16_HA", insn); | |
8240 | } | |
8241 | else if (r_type == R_PPC_ADDR16_LO) | |
8242 | { | |
8243 | insn = bfd_get_32 (output_bfd, | |
8244 | contents + rel->r_offset - d_offset); | |
8245 | if ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
8246 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
8247 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
8248 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
8249 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
8250 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
8251 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
8252 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
8253 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
8254 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
8255 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
8256 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
8257 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
8258 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
8259 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
8260 | && (insn & 3) != 1) | |
8261 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
8262 | && ((insn & 3) == 0 || (insn & 3) == 3))) | |
8263 | { | |
8264 | /* Arrange to apply the reloc addend, if any. */ | |
8265 | relocation = 0; | |
8266 | unresolved_reloc = FALSE; | |
8267 | rel->r_info = ELF32_R_INFO (0, r_type); | |
8268 | } | |
8269 | else | |
8270 | info->callbacks->einfo | |
8271 | (_("%P: %H: error: %s with unexpected instruction %x\n"), | |
8272 | input_bfd, input_section, rel->r_offset, | |
8273 | "R_PPC_ADDR16_LO", insn); | |
8274 | } | |
8275 | } | |
8276 | ||
e054468f | 8277 | ifunc = NULL; |
25f23106 | 8278 | if (!htab->is_vxworks) |
e054468f | 8279 | { |
de972ffa AM |
8280 | struct plt_entry *ent; |
8281 | ||
e054468f AM |
8282 | if (h != NULL) |
8283 | { | |
8284 | if (h->type == STT_GNU_IFUNC) | |
8285 | ifunc = &h->plt.plist; | |
8286 | } | |
de972ffa AM |
8287 | else if (local_got_offsets != NULL |
8288 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
e054468f | 8289 | { |
de972ffa | 8290 | struct plt_entry **local_plt; |
e054468f | 8291 | |
de972ffa AM |
8292 | local_plt = (struct plt_entry **) (local_got_offsets |
8293 | + symtab_hdr->sh_info); | |
8294 | ifunc = local_plt + r_symndx; | |
e054468f | 8295 | } |
e054468f | 8296 | |
de972ffa AM |
8297 | ent = NULL; |
8298 | if (ifunc != NULL | |
0e1862bb | 8299 | && (!bfd_link_pic (info) |
de972ffa AM |
8300 | || is_branch_reloc (r_type))) |
8301 | { | |
8302 | addend = 0; | |
0e1862bb | 8303 | if (r_type == R_PPC_PLTREL24 && bfd_link_pic (info)) |
de972ffa AM |
8304 | addend = rel->r_addend; |
8305 | ent = find_plt_ent (ifunc, got2, addend); | |
8306 | } | |
8307 | if (ent != NULL) | |
8308 | { | |
e054468f AM |
8309 | if (h == NULL && (ent->plt.offset & 1) == 0) |
8310 | { | |
8311 | Elf_Internal_Rela rela; | |
8312 | bfd_byte *loc; | |
8313 | ||
8314 | rela.r_offset = (htab->iplt->output_section->vma | |
8315 | + htab->iplt->output_offset | |
8316 | + ent->plt.offset); | |
8317 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8318 | rela.r_addend = relocation; | |
25f23106 AM |
8319 | loc = htab->reliplt->contents; |
8320 | loc += (htab->reliplt->reloc_count++ | |
8321 | * sizeof (Elf32_External_Rela)); | |
e054468f AM |
8322 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
8323 | ||
8324 | ent->plt.offset |= 1; | |
8325 | } | |
8326 | if (h == NULL && (ent->glink_offset & 1) == 0) | |
8327 | { | |
a7f2871e AM |
8328 | unsigned char *p = ((unsigned char *) htab->glink->contents |
8329 | + ent->glink_offset); | |
8330 | write_glink_stub (ent, htab->iplt, p, info); | |
e054468f AM |
8331 | ent->glink_offset |= 1; |
8332 | } | |
8333 | ||
8334 | unresolved_reloc = FALSE; | |
8335 | if (htab->plt_type == PLT_NEW | |
8336 | || !htab->elf.dynamic_sections_created | |
c7e17e05 AM |
8337 | || h == NULL |
8338 | || h->dynindx == -1) | |
e054468f AM |
8339 | relocation = (htab->glink->output_section->vma |
8340 | + htab->glink->output_offset | |
8341 | + (ent->glink_offset & ~1)); | |
8342 | else | |
8343 | relocation = (htab->plt->output_section->vma | |
8344 | + htab->plt->output_offset | |
8345 | + ent->plt.offset); | |
8346 | } | |
8347 | } | |
8348 | ||
7619e7c7 AM |
8349 | addend = rel->r_addend; |
8350 | tls_type = 0; | |
8351 | howto = NULL; | |
55fd94b0 AM |
8352 | if (r_type < R_PPC_max) |
8353 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 8354 | switch (r_type) |
252b5132 RH |
8355 | { |
8356 | default: | |
25f53a85 | 8357 | info->callbacks->einfo |
8de848d8 | 8358 | (_("%P: %B: unknown relocation type %d for symbol %s\n"), |
d003868e | 8359 | input_bfd, (int) r_type, sym_name); |
252b5132 RH |
8360 | |
8361 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8362 | ret = FALSE; |
c316a17c | 8363 | goto copy_reloc; |
252b5132 | 8364 | |
7619e7c7 AM |
8365 | case R_PPC_NONE: |
8366 | case R_PPC_TLS: | |
727fc41e AM |
8367 | case R_PPC_TLSGD: |
8368 | case R_PPC_TLSLD: | |
7619e7c7 AM |
8369 | case R_PPC_EMB_MRKREF: |
8370 | case R_PPC_GNU_VTINHERIT: | |
8371 | case R_PPC_GNU_VTENTRY: | |
c316a17c | 8372 | goto copy_reloc; |
7595d193 | 8373 | |
7619e7c7 AM |
8374 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
8375 | address in the GOT as relocation value instead of the | |
8376 | symbol's value itself. Also, create a GOT entry for the | |
8377 | symbol and put the symbol value there. */ | |
8378 | case R_PPC_GOT_TLSGD16: | |
8379 | case R_PPC_GOT_TLSGD16_LO: | |
8380 | case R_PPC_GOT_TLSGD16_HI: | |
8381 | case R_PPC_GOT_TLSGD16_HA: | |
8382 | tls_type = TLS_TLS | TLS_GD; | |
8383 | goto dogot; | |
8384 | ||
8385 | case R_PPC_GOT_TLSLD16: | |
8386 | case R_PPC_GOT_TLSLD16_LO: | |
8387 | case R_PPC_GOT_TLSLD16_HI: | |
8388 | case R_PPC_GOT_TLSLD16_HA: | |
8389 | tls_type = TLS_TLS | TLS_LD; | |
8390 | goto dogot; | |
8391 | ||
8392 | case R_PPC_GOT_TPREL16: | |
8393 | case R_PPC_GOT_TPREL16_LO: | |
8394 | case R_PPC_GOT_TPREL16_HI: | |
8395 | case R_PPC_GOT_TPREL16_HA: | |
8396 | tls_type = TLS_TLS | TLS_TPREL; | |
8397 | goto dogot; | |
8398 | ||
8399 | case R_PPC_GOT_DTPREL16: | |
8400 | case R_PPC_GOT_DTPREL16_LO: | |
8401 | case R_PPC_GOT_DTPREL16_HI: | |
8402 | case R_PPC_GOT_DTPREL16_HA: | |
8403 | tls_type = TLS_TLS | TLS_DTPREL; | |
8404 | goto dogot; | |
8405 | ||
8406 | case R_PPC_GOT16: | |
8407 | case R_PPC_GOT16_LO: | |
8408 | case R_PPC_GOT16_HI: | |
8409 | case R_PPC_GOT16_HA: | |
727fc41e | 8410 | tls_mask = 0; |
7619e7c7 AM |
8411 | dogot: |
8412 | { | |
8413 | /* Relocation is to the entry for this symbol in the global | |
8414 | offset table. */ | |
8415 | bfd_vma off; | |
8416 | bfd_vma *offp; | |
8417 | unsigned long indx; | |
8418 | ||
8419 | if (htab->got == NULL) | |
8420 | abort (); | |
8421 | ||
8422 | indx = 0; | |
8423 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 8424 | && (h == NULL |
f5385ebf | 8425 | || !h->def_dynamic)) |
7619e7c7 AM |
8426 | offp = &htab->tlsld_got.offset; |
8427 | else if (h != NULL) | |
8428 | { | |
8429 | bfd_boolean dyn; | |
8430 | dyn = htab->elf.dynamic_sections_created; | |
0e1862bb L |
8431 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
8432 | || (bfd_link_pic (info) | |
7619e7c7 AM |
8433 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
8434 | /* This is actually a static link, or it is a | |
8435 | -Bsymbolic link and the symbol is defined | |
8436 | locally, or the symbol was forced to be local | |
8437 | because of a version file. */ | |
8438 | ; | |
8439 | else | |
8440 | { | |
14acf4dc | 8441 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 AM |
8442 | indx = h->dynindx; |
8443 | unresolved_reloc = FALSE; | |
8444 | } | |
8445 | offp = &h->got.offset; | |
8446 | } | |
8447 | else | |
8448 | { | |
8449 | if (local_got_offsets == NULL) | |
8450 | abort (); | |
8451 | offp = &local_got_offsets[r_symndx]; | |
8452 | } | |
8453 | ||
8454 | /* The offset must always be a multiple of 4. We use the | |
8455 | least significant bit to record whether we have already | |
8456 | processed this entry. */ | |
8457 | off = *offp; | |
8458 | if ((off & 1) != 0) | |
8459 | off &= ~1; | |
8460 | else | |
8461 | { | |
70bccea4 AM |
8462 | unsigned int tls_m = (tls_mask |
8463 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
8464 | | TLS_TPREL | TLS_TPRELGD)); | |
8465 | ||
8466 | if (offp == &htab->tlsld_got.offset) | |
8467 | tls_m = TLS_LD; | |
8468 | else if (h == NULL | |
f5385ebf | 8469 | || !h->def_dynamic) |
70bccea4 AM |
8470 | tls_m &= ~TLS_LD; |
8471 | ||
8472 | /* We might have multiple got entries for this sym. | |
8473 | Initialize them all. */ | |
8474 | do | |
7619e7c7 | 8475 | { |
70bccea4 AM |
8476 | int tls_ty = 0; |
8477 | ||
8478 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 8479 | { |
70bccea4 AM |
8480 | tls_ty = TLS_TLS | TLS_LD; |
8481 | tls_m &= ~TLS_LD; | |
8482 | } | |
8483 | else if ((tls_m & TLS_GD) != 0) | |
8484 | { | |
8485 | tls_ty = TLS_TLS | TLS_GD; | |
8486 | tls_m &= ~TLS_GD; | |
8487 | } | |
8488 | else if ((tls_m & TLS_DTPREL) != 0) | |
8489 | { | |
8490 | tls_ty = TLS_TLS | TLS_DTPREL; | |
8491 | tls_m &= ~TLS_DTPREL; | |
8492 | } | |
8493 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
8494 | { | |
8495 | tls_ty = TLS_TLS | TLS_TPREL; | |
8496 | tls_m = 0; | |
7619e7c7 | 8497 | } |
7619e7c7 | 8498 | |
70bccea4 | 8499 | /* Generate relocs for the dynamic linker. */ |
0e1862bb | 8500 | if ((bfd_link_pic (info) || indx != 0) |
d6e14abc AM |
8501 | && (offp == &htab->tlsld_got.offset |
8502 | || h == NULL | |
4e795f50 AM |
8503 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
8504 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 8505 | { |
91e21fb7 | 8506 | asection *rsec = htab->relgot; |
91d6fa6a | 8507 | bfd_byte * loc; |
91e21fb7 | 8508 | |
0bed072f AM |
8509 | if (ifunc != NULL) |
8510 | rsec = htab->reliplt; | |
70bccea4 AM |
8511 | outrel.r_offset = (htab->got->output_section->vma |
8512 | + htab->got->output_offset | |
8513 | + off); | |
e515b051 | 8514 | outrel.r_addend = 0; |
70bccea4 AM |
8515 | if (tls_ty & (TLS_LD | TLS_GD)) |
8516 | { | |
8517 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
8518 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8519 | { | |
25f23106 AM |
8520 | loc = rsec->contents; |
8521 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8522 | * sizeof (Elf32_External_Rela)); |
8523 | bfd_elf32_swap_reloca_out (output_bfd, | |
8524 | &outrel, loc); | |
e515b051 | 8525 | outrel.r_offset += 4; |
70bccea4 AM |
8526 | outrel.r_info |
8527 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
8528 | } |
8529 | } | |
8530 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
8531 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
8532 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8533 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
25f23106 | 8534 | else if (indx != 0) |
70bccea4 | 8535 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); |
25f23106 AM |
8536 | else if (ifunc != NULL) |
8537 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8538 | else | |
8539 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
d6e14abc | 8540 | if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) |
e515b051 AM |
8541 | { |
8542 | outrel.r_addend += relocation; | |
8543 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
989f9879 AM |
8544 | { |
8545 | if (htab->elf.tls_sec == NULL) | |
8546 | outrel.r_addend = 0; | |
8547 | else | |
8548 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
8549 | } | |
e515b051 | 8550 | } |
25f23106 AM |
8551 | loc = rsec->contents; |
8552 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8553 | * sizeof (Elf32_External_Rela)); |
8554 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
8555 | } |
8556 | ||
70bccea4 AM |
8557 | /* Init the .got section contents if we're not |
8558 | emitting a reloc. */ | |
8559 | else | |
7619e7c7 | 8560 | { |
70bccea4 AM |
8561 | bfd_vma value = relocation; |
8562 | ||
7b609f53 AM |
8563 | if (tls_ty == (TLS_TLS | TLS_LD)) |
8564 | value = 1; | |
8565 | else if (tls_ty != 0) | |
70bccea4 | 8566 | { |
989f9879 AM |
8567 | if (htab->elf.tls_sec == NULL) |
8568 | value = 0; | |
8569 | else | |
8570 | { | |
8571 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
8572 | if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8573 | value += DTP_OFFSET - TP_OFFSET; | |
8574 | } | |
70bccea4 | 8575 | |
7b609f53 AM |
8576 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8577 | { | |
8578 | bfd_put_32 (output_bfd, value, | |
8579 | htab->got->contents + off + 4); | |
8580 | value = 1; | |
8581 | } | |
70bccea4 | 8582 | } |
70bccea4 AM |
8583 | bfd_put_32 (output_bfd, value, |
8584 | htab->got->contents + off); | |
7619e7c7 | 8585 | } |
70bccea4 AM |
8586 | |
8587 | off += 4; | |
8588 | if (tls_ty & (TLS_LD | TLS_GD)) | |
8589 | off += 4; | |
7619e7c7 | 8590 | } |
70bccea4 AM |
8591 | while (tls_m != 0); |
8592 | ||
8593 | off = *offp; | |
8594 | *offp = off | 1; | |
7619e7c7 AM |
8595 | } |
8596 | ||
8597 | if (off >= (bfd_vma) -2) | |
8598 | abort (); | |
8599 | ||
70bccea4 AM |
8600 | if ((tls_type & TLS_TLS) != 0) |
8601 | { | |
8602 | if (tls_type != (TLS_TLS | TLS_LD)) | |
8603 | { | |
8604 | if ((tls_mask & TLS_LD) != 0 | |
8605 | && !(h == NULL | |
f5385ebf | 8606 | || !h->def_dynamic)) |
70bccea4 AM |
8607 | off += 8; |
8608 | if (tls_type != (TLS_TLS | TLS_GD)) | |
8609 | { | |
8610 | if ((tls_mask & TLS_GD) != 0) | |
8611 | off += 8; | |
8612 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
8613 | { | |
8614 | if ((tls_mask & TLS_DTPREL) != 0) | |
8615 | off += 4; | |
8616 | } | |
8617 | } | |
8618 | } | |
8619 | } | |
8620 | ||
d3e454b9 AM |
8621 | /* If here for a picfixup, we're done. */ |
8622 | if (r_type != ELF32_R_TYPE (rel->r_info)) | |
c316a17c | 8623 | goto copy_reloc; |
d3e454b9 | 8624 | |
e87d4038 AM |
8625 | relocation = (htab->got->output_section->vma |
8626 | + htab->got->output_offset | |
8627 | + off | |
8628 | - SYM_VAL (htab->elf.hgot)); | |
7619e7c7 AM |
8629 | |
8630 | /* Addends on got relocations don't make much sense. | |
8631 | x+off@got is actually x@got+off, and since the got is | |
8632 | generated by a hash table traversal, the value in the | |
8633 | got at entry m+n bears little relation to the entry m. */ | |
8634 | if (addend != 0) | |
25f53a85 | 8635 | info->callbacks->einfo |
8de848d8 | 8636 | (_("%P: %H: non-zero addend on %s reloc against `%s'\n"), |
25f53a85 | 8637 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 8638 | howto->name, |
7619e7c7 AM |
8639 | sym_name); |
8640 | } | |
86c95733 | 8641 | break; |
7619e7c7 | 8642 | |
86c95733 | 8643 | /* Relocations that need no special processing. */ |
7619e7c7 | 8644 | case R_PPC_LOCAL24PC: |
252b5132 RH |
8645 | /* It makes no sense to point a local relocation |
8646 | at a symbol not in this object. */ | |
7b609f53 | 8647 | if (unresolved_reloc) |
252b5132 | 8648 | { |
1a72702b AM |
8649 | (*info->callbacks->undefined_symbol) (info, |
8650 | h->root.root.string, | |
8651 | input_bfd, | |
8652 | input_section, | |
8653 | rel->r_offset, | |
8654 | TRUE); | |
c316a17c | 8655 | goto copy_reloc; |
252b5132 RH |
8656 | } |
8657 | break; | |
8658 | ||
7619e7c7 AM |
8659 | case R_PPC_DTPREL16: |
8660 | case R_PPC_DTPREL16_LO: | |
8661 | case R_PPC_DTPREL16_HI: | |
8662 | case R_PPC_DTPREL16_HA: | |
989f9879 AM |
8663 | if (htab->elf.tls_sec != NULL) |
8664 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8665 | break; |
8666 | ||
70bccea4 AM |
8667 | /* Relocations that may need to be propagated if this is a shared |
8668 | object. */ | |
7619e7c7 AM |
8669 | case R_PPC_TPREL16: |
8670 | case R_PPC_TPREL16_LO: | |
8671 | case R_PPC_TPREL16_HI: | |
8672 | case R_PPC_TPREL16_HA: | |
766bc656 AM |
8673 | if (h != NULL |
8674 | && h->root.type == bfd_link_hash_undefweak | |
8675 | && h->dynindx == -1) | |
8676 | { | |
8677 | /* Make this relocation against an undefined weak symbol | |
8678 | resolve to zero. This is really just a tweak, since | |
8679 | code using weak externs ought to check that they are | |
8680 | defined before using them. */ | |
8681 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
8682 | unsigned int insn = bfd_get_32 (output_bfd, p); | |
8683 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 2); | |
8684 | if (insn != 0) | |
8685 | bfd_put_32 (output_bfd, insn, p); | |
8686 | break; | |
8687 | } | |
989f9879 AM |
8688 | if (htab->elf.tls_sec != NULL) |
8689 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8690 | /* The TPREL16 relocs shouldn't really be used in shared |
8691 | libs as they will result in DT_TEXTREL being set, but | |
8692 | support them anyway. */ | |
8693 | goto dodyn; | |
8694 | ||
8695 | case R_PPC_TPREL32: | |
989f9879 AM |
8696 | if (htab->elf.tls_sec != NULL) |
8697 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
7619e7c7 AM |
8698 | goto dodyn; |
8699 | ||
8700 | case R_PPC_DTPREL32: | |
989f9879 AM |
8701 | if (htab->elf.tls_sec != NULL) |
8702 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
7619e7c7 AM |
8703 | goto dodyn; |
8704 | ||
e515b051 AM |
8705 | case R_PPC_DTPMOD32: |
8706 | relocation = 1; | |
8707 | addend = 0; | |
8708 | goto dodyn; | |
8709 | ||
d7128ce4 AM |
8710 | case R_PPC_REL16: |
8711 | case R_PPC_REL16_LO: | |
8712 | case R_PPC_REL16_HI: | |
8713 | case R_PPC_REL16_HA: | |
a680de9a | 8714 | case R_PPC_REL16DX_HA: |
d7128ce4 AM |
8715 | break; |
8716 | ||
7619e7c7 | 8717 | case R_PPC_REL32: |
625af618 AM |
8718 | if (h == NULL || h == htab->elf.hgot) |
8719 | break; | |
8720 | /* fall through */ | |
8721 | ||
8722 | case R_PPC_ADDR32: | |
8723 | case R_PPC_ADDR16: | |
8724 | case R_PPC_ADDR16_LO: | |
8725 | case R_PPC_ADDR16_HI: | |
8726 | case R_PPC_ADDR16_HA: | |
8727 | case R_PPC_UADDR32: | |
8728 | case R_PPC_UADDR16: | |
8729 | goto dodyn; | |
8730 | ||
b9c361e0 JL |
8731 | case R_PPC_VLE_REL8: |
8732 | case R_PPC_VLE_REL15: | |
8733 | case R_PPC_VLE_REL24: | |
625af618 | 8734 | case R_PPC_REL24: |
7619e7c7 AM |
8735 | case R_PPC_REL14: |
8736 | case R_PPC_REL14_BRTAKEN: | |
8737 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
8738 | /* If these relocations are not to a named symbol, they can be |
8739 | handled right here, no need to bother the dynamic linker. */ | |
89200bf8 | 8740 | if (SYMBOL_CALLS_LOCAL (info, h) |
3b36f7e6 | 8741 | || h == htab->elf.hgot) |
252b5132 | 8742 | break; |
70bccea4 | 8743 | /* fall through */ |
252b5132 | 8744 | |
7619e7c7 | 8745 | case R_PPC_ADDR24: |
7619e7c7 AM |
8746 | case R_PPC_ADDR14: |
8747 | case R_PPC_ADDR14_BRTAKEN: | |
8748 | case R_PPC_ADDR14_BRNTAKEN: | |
0e1862bb | 8749 | if (h != NULL && !bfd_link_pic (info)) |
625af618 AM |
8750 | break; |
8751 | /* fall through */ | |
8752 | ||
7619e7c7 | 8753 | dodyn: |
3348747a NS |
8754 | if ((input_section->flags & SEC_ALLOC) == 0 |
8755 | || is_vxworks_tls) | |
c87b5a93 | 8756 | break; |
c87b5a93 | 8757 | |
0e1862bb | 8758 | if ((bfd_link_pic (info) |
89200bf8 AM |
8759 | && !(h != NULL |
8760 | && ((h->root.type == bfd_link_hash_undefined | |
8761 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
8762 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
8763 | || (h->root.type == bfd_link_hash_undefweak | |
8764 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) | |
1d483afe | 8765 | && (must_be_dyn_reloc (info, r_type) |
f6c52c13 | 8766 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe | 8767 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 8768 | && !bfd_link_pic (info) |
ee05f2fe AM |
8769 | && h != NULL |
8770 | && h->dynindx != -1 | |
f5385ebf | 8771 | && !h->non_got_ref |
d3e454b9 AM |
8772 | && !h->def_regular |
8773 | && !(h->protected_def | |
8774 | && ppc_elf_hash_entry (h)->has_addr16_ha | |
8775 | && ppc_elf_hash_entry (h)->has_addr16_lo | |
8776 | && htab->params->pic_fixup > 0))) | |
252b5132 | 8777 | { |
0bb2d96a | 8778 | int skip; |
f95f8542 AM |
8779 | bfd_byte *loc; |
8780 | asection *sreloc; | |
252b5132 | 8781 | #ifdef DEBUG |
55fd94b0 AM |
8782 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
8783 | "create relocation for %s\n", | |
70bccea4 AM |
8784 | (h && h->root.root.string |
8785 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
8786 | #endif |
8787 | ||
8788 | /* When generating a shared object, these relocations | |
70bccea4 AM |
8789 | are copied into the output file to be resolved at run |
8790 | time. */ | |
f95f8542 AM |
8791 | sreloc = elf_section_data (input_section)->sreloc; |
8792 | if (ifunc) | |
8793 | sreloc = htab->reliplt; | |
252b5132 | 8794 | if (sreloc == NULL) |
f95f8542 | 8795 | return FALSE; |
252b5132 | 8796 | |
0bb2d96a | 8797 | skip = 0; |
5b914448 AM |
8798 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, |
8799 | input_section, | |
8800 | rel->r_offset); | |
0bb2d96a JJ |
8801 | if (outrel.r_offset == (bfd_vma) -1 |
8802 | || outrel.r_offset == (bfd_vma) -2) | |
8803 | skip = (int) outrel.r_offset; | |
252b5132 RH |
8804 | outrel.r_offset += (input_section->output_section->vma |
8805 | + input_section->output_offset); | |
8806 | ||
8807 | if (skip) | |
8808 | memset (&outrel, 0, sizeof outrel); | |
89200bf8 AM |
8809 | else if ((h != NULL |
8810 | && (h->root.type == bfd_link_hash_undefined | |
8811 | || h->root.type == bfd_link_hash_undefweak)) | |
8812 | || !SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 | 8813 | { |
14acf4dc | 8814 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 | 8815 | unresolved_reloc = FALSE; |
252b5132 RH |
8816 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
8817 | outrel.r_addend = rel->r_addend; | |
8818 | } | |
8819 | else | |
8820 | { | |
47388f4c AM |
8821 | outrel.r_addend = relocation + rel->r_addend; |
8822 | ||
25f23106 | 8823 | if (r_type != R_PPC_ADDR32) |
252b5132 | 8824 | { |
89200bf8 | 8825 | long indx = 0; |
252b5132 | 8826 | |
25f23106 AM |
8827 | if (ifunc != NULL) |
8828 | { | |
8829 | /* If we get here when building a static | |
8830 | executable, then the libc startup function | |
8831 | responsible for applying indirect function | |
8832 | relocations is going to complain about | |
8833 | the reloc type. | |
8834 | If we get here when building a dynamic | |
8835 | executable, it will be because we have | |
8836 | a text relocation. The dynamic loader | |
8837 | will set the text segment writable and | |
8838 | non-executable to apply text relocations. | |
8839 | So we'll segfault when trying to run the | |
8840 | indirection function to resolve the reloc. */ | |
25f53a85 | 8841 | info->callbacks->einfo |
8de848d8 | 8842 | (_("%P: %H: relocation %s for indirect " |
25f53a85 AM |
8843 | "function %s unsupported\n"), |
8844 | input_bfd, input_section, rel->r_offset, | |
25f23106 AM |
8845 | howto->name, |
8846 | sym_name); | |
8847 | ret = FALSE; | |
8848 | } | |
cf35638d | 8849 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
89200bf8 | 8850 | ; |
252b5132 RH |
8851 | else if (sec == NULL || sec->owner == NULL) |
8852 | { | |
8853 | bfd_set_error (bfd_error_bad_value); | |
89200bf8 | 8854 | ret = FALSE; |
252b5132 RH |
8855 | } |
8856 | else | |
8857 | { | |
8858 | asection *osec; | |
8859 | ||
47388f4c AM |
8860 | /* We are turning this relocation into one |
8861 | against a section symbol. It would be | |
8862 | proper to subtract the symbol's value, | |
8863 | osec->vma, from the emitted reloc addend, | |
25f23106 AM |
8864 | but ld.so expects buggy relocs. |
8865 | FIXME: Why not always use a zero index? */ | |
252b5132 RH |
8866 | osec = sec->output_section; |
8867 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
8868 | if (indx == 0) |
8869 | { | |
8870 | osec = htab->elf.text_index_section; | |
8871 | indx = elf_section_data (osec)->dynindx; | |
8872 | } | |
8873 | BFD_ASSERT (indx != 0); | |
252b5132 | 8874 | #ifdef DEBUG |
74541ad4 | 8875 | if (indx == 0) |
e460dd0d | 8876 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
55fd94b0 AM |
8877 | indx, osec->name, osec->flags, |
8878 | h->root.root.string); | |
252b5132 RH |
8879 | #endif |
8880 | } | |
8881 | ||
8882 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 | 8883 | } |
25f23106 AM |
8884 | else if (ifunc != NULL) |
8885 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8886 | else | |
8887 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
252b5132 RH |
8888 | } |
8889 | ||
947216bf AM |
8890 | loc = sreloc->contents; |
8891 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
8892 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 8893 | |
2243deae | 8894 | if (skip == -1) |
c316a17c | 8895 | goto copy_reloc; |
2243deae L |
8896 | |
8897 | /* This reloc will be computed at runtime. We clear the memory | |
8898 | so that it contains predictable value. */ | |
8899 | if (! skip | |
8900 | && ((input_section->flags & SEC_ALLOC) != 0 | |
8901 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
8902 | { | |
8903 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
8904 | addend = 0; | |
8905 | break; | |
8906 | } | |
252b5132 | 8907 | } |
252b5132 RH |
8908 | break; |
8909 | ||
32af9f6e AM |
8910 | case R_PPC_RELAX_PLT: |
8911 | case R_PPC_RELAX_PLTREL24: | |
de972ffa AM |
8912 | if (h != NULL) |
8913 | { | |
32af9f6e AM |
8914 | struct plt_entry *ent; |
8915 | bfd_vma got2_addend = 0; | |
8916 | ||
8917 | if (r_type == R_PPC_RELAX_PLTREL24) | |
8918 | { | |
0e1862bb | 8919 | if (bfd_link_pic (info)) |
32af9f6e AM |
8920 | got2_addend = addend; |
8921 | addend = 0; | |
8922 | } | |
8923 | ent = find_plt_ent (&h->plt.plist, got2, got2_addend); | |
de972ffa AM |
8924 | if (htab->plt_type == PLT_NEW) |
8925 | relocation = (htab->glink->output_section->vma | |
8926 | + htab->glink->output_offset | |
8927 | + ent->glink_offset); | |
8928 | else | |
8929 | relocation = (htab->plt->output_section->vma | |
8930 | + htab->plt->output_offset | |
8931 | + ent->plt.offset); | |
8932 | } | |
b4a38de6 AM |
8933 | /* Fall thru */ |
8934 | ||
32af9f6e | 8935 | case R_PPC_RELAX: |
9abc968f | 8936 | { |
53291d1f AM |
8937 | const int *stub; |
8938 | size_t size; | |
8939 | size_t insn_offset = rel->r_offset; | |
8940 | unsigned int insn; | |
9abc968f | 8941 | |
0e1862bb | 8942 | if (bfd_link_pic (info)) |
53291d1f AM |
8943 | { |
8944 | relocation -= (input_section->output_section->vma | |
8945 | + input_section->output_offset | |
8946 | + rel->r_offset - 4); | |
8947 | stub = shared_stub_entry; | |
8948 | bfd_put_32 (output_bfd, stub[0], contents + insn_offset - 12); | |
8949 | bfd_put_32 (output_bfd, stub[1], contents + insn_offset - 8); | |
8950 | bfd_put_32 (output_bfd, stub[2], contents + insn_offset - 4); | |
8951 | stub += 3; | |
8952 | size = ARRAY_SIZE (shared_stub_entry) - 3; | |
8953 | } | |
8954 | else | |
8955 | { | |
8956 | stub = stub_entry; | |
8957 | size = ARRAY_SIZE (stub_entry); | |
8958 | } | |
9abc968f | 8959 | |
9abc968f | 8960 | relocation += addend; |
0e1862bb | 8961 | if (bfd_link_relocatable (info)) |
53291d1f AM |
8962 | relocation = 0; |
8963 | ||
8964 | /* First insn is HA, second is LO. */ | |
8965 | insn = *stub++; | |
8966 | insn |= ((relocation + 0x8000) >> 16) & 0xffff; | |
8967 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
8968 | insn_offset += 4; | |
8969 | ||
8970 | insn = *stub++; | |
8971 | insn |= relocation & 0xffff; | |
8972 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
8973 | insn_offset += 4; | |
8974 | size -= 2; | |
8975 | ||
8976 | while (size != 0) | |
8977 | { | |
8978 | insn = *stub++; | |
8979 | --size; | |
8980 | bfd_put_32 (output_bfd, insn, contents + insn_offset); | |
8981 | insn_offset += 4; | |
8982 | } | |
9bc4e62b NS |
8983 | |
8984 | /* Rewrite the reloc and convert one of the trailing nop | |
8985 | relocs to describe this relocation. */ | |
8986 | BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); | |
8987 | /* The relocs are at the bottom 2 bytes */ | |
c316a17c AM |
8988 | wrel->r_offset = rel->r_offset + d_offset; |
8989 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
8990 | wrel->r_addend = rel->r_addend; | |
8991 | memmove (wrel + 1, wrel, (relend - wrel - 1) * sizeof (*wrel)); | |
8992 | wrel++, rel++; | |
8993 | wrel->r_offset += 4; | |
8994 | wrel->r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
9abc968f | 8995 | } |
8517fae7 | 8996 | continue; |
deaaf2f3 | 8997 | |
70bccea4 | 8998 | /* Indirect .sdata relocation. */ |
7619e7c7 | 8999 | case R_PPC_EMB_SDAI16: |
c9a2f333 | 9000 | BFD_ASSERT (htab->sdata[0].section != NULL); |
bd6c6e2b AM |
9001 | if (!is_static_defined (htab->sdata[0].sym)) |
9002 | { | |
9003 | unresolved_reloc = TRUE; | |
9004 | break; | |
9005 | } | |
7619e7c7 | 9006 | relocation |
76750a2f AM |
9007 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], |
9008 | h, relocation, rel); | |
bd6c6e2b | 9009 | addend = 0; |
252b5132 RH |
9010 | break; |
9011 | ||
70bccea4 | 9012 | /* Indirect .sdata2 relocation. */ |
7619e7c7 | 9013 | case R_PPC_EMB_SDA2I16: |
c9a2f333 | 9014 | BFD_ASSERT (htab->sdata[1].section != NULL); |
bd6c6e2b AM |
9015 | if (!is_static_defined (htab->sdata[1].sym)) |
9016 | { | |
9017 | unresolved_reloc = TRUE; | |
9018 | break; | |
9019 | } | |
7619e7c7 | 9020 | relocation |
76750a2f AM |
9021 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], |
9022 | h, relocation, rel); | |
bd6c6e2b | 9023 | addend = 0; |
252b5132 RH |
9024 | break; |
9025 | ||
70bccea4 AM |
9026 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
9027 | section, not the actual VMA. This is appropriate when generating | |
9028 | an embedded ELF object, for which the .got section acts like the | |
9029 | AIX .toc section. */ | |
7619e7c7 | 9030 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
3b4f3a11 AM |
9031 | if (sec == NULL || sec->output_section == NULL) |
9032 | { | |
9033 | unresolved_reloc = TRUE; | |
9034 | break; | |
9035 | } | |
a0f49396 NC |
9036 | BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec), |
9037 | ".got") == 0 | |
9038 | || strcmp (bfd_get_section_name (sec->owner, sec), | |
9039 | ".cgot") == 0); | |
252b5132 | 9040 | |
3b4f3a11 | 9041 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
9042 | break; |
9043 | ||
7619e7c7 | 9044 | case R_PPC_PLTREL24: |
f75e0e33 AM |
9045 | if (h != NULL && ifunc == NULL) |
9046 | { | |
cbf95972 AM |
9047 | struct plt_entry *ent; |
9048 | ||
9049 | ent = find_plt_ent (&h->plt.plist, got2, | |
9050 | bfd_link_pic (info) ? addend : 0); | |
f75e0e33 AM |
9051 | if (ent == NULL |
9052 | || htab->plt == NULL) | |
9053 | { | |
9054 | /* We didn't make a PLT entry for this symbol. This | |
9055 | happens when statically linking PIC code, or when | |
9056 | using -Bsymbolic. */ | |
9057 | } | |
9058 | else | |
9059 | { | |
9060 | /* Relocation is to the entry for this symbol in the | |
9061 | procedure linkage table. */ | |
9062 | unresolved_reloc = FALSE; | |
9063 | if (htab->plt_type == PLT_NEW) | |
9064 | relocation = (htab->glink->output_section->vma | |
9065 | + htab->glink->output_offset | |
9066 | + ent->glink_offset); | |
9067 | else | |
9068 | relocation = (htab->plt->output_section->vma | |
9069 | + htab->plt->output_offset | |
9070 | + ent->plt.offset); | |
9071 | } | |
9072 | } | |
252b5132 | 9073 | |
f75e0e33 AM |
9074 | /* R_PPC_PLTREL24 is rather special. If non-zero, the |
9075 | addend specifies the GOT pointer offset within .got2. | |
9076 | Don't apply it to the relocation field. */ | |
9077 | addend = 0; | |
8da6118f | 9078 | break; |
252b5132 | 9079 | |
70bccea4 | 9080 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 9081 | case R_PPC_SDAREL16: |
252b5132 RH |
9082 | { |
9083 | const char *name; | |
bd6c6e2b | 9084 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; |
252b5132 | 9085 | |
bd6c6e2b AM |
9086 | if (sec == NULL |
9087 | || sec->output_section == NULL | |
9088 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9089 | { |
9090 | unresolved_reloc = TRUE; | |
9091 | break; | |
9092 | } | |
bd6c6e2b | 9093 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9094 | |
a0f49396 | 9095 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9096 | if (!(strcmp (name, ".sdata") == 0 |
9097 | || strcmp (name, ".sbss") == 0)) | |
252b5132 | 9098 | { |
25f53a85 | 9099 | info->callbacks->einfo |
8de848d8 | 9100 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9101 | "in the wrong output section (%s)\n"), |
d003868e | 9102 | input_bfd, |
55fd94b0 AM |
9103 | sym_name, |
9104 | howto->name, | |
9105 | name); | |
252b5132 | 9106 | } |
252b5132 RH |
9107 | } |
9108 | break; | |
9109 | ||
70bccea4 | 9110 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 9111 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
9112 | { |
9113 | const char *name; | |
bd6c6e2b | 9114 | struct elf_link_hash_entry *sda = htab->sdata[1].sym; |
252b5132 | 9115 | |
bd6c6e2b AM |
9116 | if (sec == NULL |
9117 | || sec->output_section == NULL | |
9118 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
9119 | { |
9120 | unresolved_reloc = TRUE; | |
9121 | break; | |
9122 | } | |
bd6c6e2b | 9123 | addend -= SYM_VAL (sda); |
3b4f3a11 | 9124 | |
a0f49396 | 9125 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9126 | if (!(strcmp (name, ".sdata2") == 0 |
9127 | || strcmp (name, ".sbss2") == 0)) | |
252b5132 | 9128 | { |
25f53a85 | 9129 | info->callbacks->einfo |
8de848d8 | 9130 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9131 | "in the wrong output section (%s)\n"), |
d003868e | 9132 | input_bfd, |
55fd94b0 AM |
9133 | sym_name, |
9134 | howto->name, | |
9135 | name); | |
252b5132 | 9136 | } |
252b5132 RH |
9137 | } |
9138 | break; | |
9139 | ||
b9c361e0 | 9140 | case R_PPC_VLE_LO16A: |
86c95733 AM |
9141 | relocation = relocation + addend; |
9142 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9143 | relocation, split16a_type); | |
c316a17c | 9144 | goto copy_reloc; |
b9c361e0 JL |
9145 | |
9146 | case R_PPC_VLE_LO16D: | |
86c95733 AM |
9147 | relocation = relocation + addend; |
9148 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9149 | relocation, split16d_type); | |
c316a17c | 9150 | goto copy_reloc; |
b9c361e0 JL |
9151 | |
9152 | case R_PPC_VLE_HI16A: | |
86c95733 AM |
9153 | relocation = (relocation + addend) >> 16; |
9154 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9155 | relocation, split16a_type); | |
c316a17c | 9156 | goto copy_reloc; |
b9c361e0 JL |
9157 | |
9158 | case R_PPC_VLE_HI16D: | |
86c95733 AM |
9159 | relocation = (relocation + addend) >> 16; |
9160 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9161 | relocation, split16d_type); | |
c316a17c | 9162 | goto copy_reloc; |
b9c361e0 JL |
9163 | |
9164 | case R_PPC_VLE_HA16A: | |
86c95733 AM |
9165 | relocation = (relocation + addend + 0x8000) >> 16; |
9166 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9167 | relocation, split16a_type); | |
c316a17c | 9168 | goto copy_reloc; |
b9c361e0 JL |
9169 | |
9170 | case R_PPC_VLE_HA16D: | |
86c95733 AM |
9171 | relocation = (relocation + addend + 0x8000) >> 16; |
9172 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9173 | relocation, split16d_type); | |
c316a17c | 9174 | goto copy_reloc; |
b9c361e0 | 9175 | |
70bccea4 | 9176 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 | 9177 | case R_PPC_EMB_SDA21: |
b9c361e0 | 9178 | case R_PPC_VLE_SDA21: |
7619e7c7 | 9179 | case R_PPC_EMB_RELSDA: |
b9c361e0 | 9180 | case R_PPC_VLE_SDA21_LO: |
252b5132 RH |
9181 | { |
9182 | const char *name; | |
9183 | int reg; | |
86c95733 | 9184 | unsigned int insn; |
bd6c6e2b | 9185 | struct elf_link_hash_entry *sda = NULL; |
252b5132 | 9186 | |
3b4f3a11 AM |
9187 | if (sec == NULL || sec->output_section == NULL) |
9188 | { | |
9189 | unresolved_reloc = TRUE; | |
9190 | break; | |
9191 | } | |
9192 | ||
a0f49396 | 9193 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9194 | if (strcmp (name, ".sdata") == 0 |
9195 | || strcmp (name, ".sbss") == 0) | |
252b5132 RH |
9196 | { |
9197 | reg = 13; | |
bd6c6e2b | 9198 | sda = htab->sdata[0].sym; |
252b5132 | 9199 | } |
93d1b056 AM |
9200 | else if (strcmp (name, ".sdata2") == 0 |
9201 | || strcmp (name, ".sbss2") == 0) | |
252b5132 RH |
9202 | { |
9203 | reg = 2; | |
bd6c6e2b | 9204 | sda = htab->sdata[1].sym; |
252b5132 | 9205 | } |
8da6118f KH |
9206 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
9207 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
9208 | { |
9209 | reg = 0; | |
9210 | } | |
252b5132 RH |
9211 | else |
9212 | { | |
25f53a85 | 9213 | info->callbacks->einfo |
8de848d8 | 9214 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 9215 | "in the wrong output section (%s)\n"), |
d003868e | 9216 | input_bfd, |
55fd94b0 AM |
9217 | sym_name, |
9218 | howto->name, | |
9219 | name); | |
252b5132 RH |
9220 | |
9221 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 9222 | ret = FALSE; |
c316a17c | 9223 | goto copy_reloc; |
252b5132 RH |
9224 | } |
9225 | ||
bd6c6e2b AM |
9226 | if (sda != NULL) |
9227 | { | |
9228 | if (!is_static_defined (sda)) | |
9229 | { | |
9230 | unresolved_reloc = TRUE; | |
9231 | break; | |
9232 | } | |
9233 | addend -= SYM_VAL (sda); | |
9234 | } | |
9235 | ||
86c95733 | 9236 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
b9c361e0 JL |
9237 | if (reg == 0 |
9238 | && (r_type == R_PPC_VLE_SDA21 | |
9239 | || r_type == R_PPC_VLE_SDA21_LO)) | |
9240 | { | |
86c95733 AM |
9241 | relocation = relocation + addend; |
9242 | addend = 0; | |
9243 | ||
9244 | /* Force e_li insn, keeping RT from original insn. */ | |
9245 | insn &= 0x1f << 21; | |
9246 | insn |= 28u << 26; | |
9247 | ||
9248 | /* We have an li20 field, bits 17..20, 11..15, 21..31. */ | |
9249 | /* Top 4 bits of value to 17..20. */ | |
9250 | insn |= (relocation & 0xf0000) >> 5; | |
9251 | /* Next 5 bits of the value to 11..15. */ | |
9252 | insn |= (relocation & 0xf800) << 5; | |
9253 | /* And the final 11 bits of the value to bits 21 to 31. */ | |
9254 | insn |= relocation & 0x7ff; | |
9255 | ||
c3301df1 AM |
9256 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
9257 | ||
9258 | if (r_type == R_PPC_VLE_SDA21 | |
9259 | && ((relocation + 0x80000) & 0xffffffff) > 0x100000) | |
9260 | goto overflow; | |
c316a17c | 9261 | goto copy_reloc; |
b9c361e0 JL |
9262 | } |
9263 | else if (r_type == R_PPC_EMB_SDA21 | |
9264 | || r_type == R_PPC_VLE_SDA21 | |
9265 | || r_type == R_PPC_VLE_SDA21_LO) | |
91d6fa6a | 9266 | { |
86c95733 | 9267 | /* Fill in register field. */ |
252b5132 | 9268 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
252b5132 | 9269 | } |
86c95733 | 9270 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
9271 | } |
9272 | break; | |
9273 | ||
b9c361e0 JL |
9274 | case R_PPC_VLE_SDAREL_LO16A: |
9275 | case R_PPC_VLE_SDAREL_LO16D: | |
9276 | case R_PPC_VLE_SDAREL_HI16A: | |
9277 | case R_PPC_VLE_SDAREL_HI16D: | |
9278 | case R_PPC_VLE_SDAREL_HA16A: | |
9279 | case R_PPC_VLE_SDAREL_HA16D: | |
9280 | { | |
9281 | bfd_vma value; | |
9282 | const char *name; | |
9283 | //int reg; | |
9284 | struct elf_link_hash_entry *sda = NULL; | |
9285 | ||
9286 | if (sec == NULL || sec->output_section == NULL) | |
9287 | { | |
9288 | unresolved_reloc = TRUE; | |
9289 | break; | |
9290 | } | |
9291 | ||
a0f49396 | 9292 | name = bfd_get_section_name (output_bfd, sec->output_section); |
93d1b056 AM |
9293 | if (strcmp (name, ".sdata") == 0 |
9294 | || strcmp (name, ".sbss") == 0) | |
b9c361e0 JL |
9295 | { |
9296 | //reg = 13; | |
9297 | sda = htab->sdata[0].sym; | |
9298 | } | |
93d1b056 AM |
9299 | else if (strcmp (name, ".sdata2") == 0 |
9300 | || strcmp (name, ".sbss2") == 0) | |
b9c361e0 JL |
9301 | { |
9302 | //reg = 2; | |
9303 | sda = htab->sdata[1].sym; | |
9304 | } | |
9305 | else | |
9306 | { | |
9307 | (*_bfd_error_handler) | |
9308 | (_("%B: the target (%s) of a %s relocation is " | |
9309 | "in the wrong output section (%s)"), | |
9310 | input_bfd, | |
9311 | sym_name, | |
9312 | howto->name, | |
9313 | name); | |
9314 | ||
9315 | bfd_set_error (bfd_error_bad_value); | |
9316 | ret = FALSE; | |
c316a17c | 9317 | goto copy_reloc; |
b9c361e0 JL |
9318 | } |
9319 | ||
9320 | if (sda != NULL) | |
9321 | { | |
9322 | if (!is_static_defined (sda)) | |
9323 | { | |
9324 | unresolved_reloc = TRUE; | |
9325 | break; | |
9326 | } | |
9327 | } | |
9328 | ||
86c95733 AM |
9329 | value = (sda->root.u.def.section->output_section->vma |
9330 | + sda->root.u.def.section->output_offset | |
9331 | + addend); | |
9332 | ||
9333 | if (r_type == R_PPC_VLE_SDAREL_LO16A) | |
9334 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9335 | value, split16a_type); | |
9336 | else if (r_type == R_PPC_VLE_SDAREL_LO16D) | |
9337 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9338 | value, split16d_type); | |
9339 | else if (r_type == R_PPC_VLE_SDAREL_HI16A) | |
b9c361e0 | 9340 | { |
86c95733 AM |
9341 | value = value >> 16; |
9342 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9343 | value, split16a_type); | |
b9c361e0 | 9344 | } |
86c95733 | 9345 | else if (r_type == R_PPC_VLE_SDAREL_HI16D) |
b9c361e0 | 9346 | { |
86c95733 AM |
9347 | value = value >> 16; |
9348 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9349 | value, split16d_type); | |
b9c361e0 | 9350 | } |
86c95733 | 9351 | else if (r_type == R_PPC_VLE_SDAREL_HA16A) |
b9c361e0 | 9352 | { |
86c95733 AM |
9353 | value = (value + 0x8000) >> 16; |
9354 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9355 | value, split16a_type); | |
b9c361e0 | 9356 | } |
86c95733 | 9357 | else if (r_type == R_PPC_VLE_SDAREL_HA16D) |
b9c361e0 | 9358 | { |
86c95733 AM |
9359 | value = (value + 0x8000) >> 16; |
9360 | ppc_elf_vle_split16 (output_bfd, contents + rel->r_offset, | |
9361 | value, split16d_type); | |
b9c361e0 JL |
9362 | } |
9363 | } | |
c316a17c | 9364 | goto copy_reloc; |
b9c361e0 | 9365 | |
70bccea4 | 9366 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
9367 | case R_PPC_SECTOFF: |
9368 | case R_PPC_SECTOFF_LO: | |
9369 | case R_PPC_SECTOFF_HI: | |
9370 | case R_PPC_SECTOFF_HA: | |
3b4f3a11 AM |
9371 | if (sec == NULL || sec->output_section == NULL) |
9372 | { | |
9373 | unresolved_reloc = TRUE; | |
9374 | break; | |
9375 | } | |
252b5132 | 9376 | addend -= sec->output_section->vma; |
252b5132 RH |
9377 | break; |
9378 | ||
70bccea4 | 9379 | /* Negative relocations. */ |
7619e7c7 AM |
9380 | case R_PPC_EMB_NADDR32: |
9381 | case R_PPC_EMB_NADDR16: | |
9382 | case R_PPC_EMB_NADDR16_LO: | |
9383 | case R_PPC_EMB_NADDR16_HI: | |
9384 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 9385 | addend -= 2 * relocation; |
252b5132 RH |
9386 | break; |
9387 | ||
7619e7c7 AM |
9388 | case R_PPC_COPY: |
9389 | case R_PPC_GLOB_DAT: | |
9390 | case R_PPC_JMP_SLOT: | |
9391 | case R_PPC_RELATIVE: | |
e054468f | 9392 | case R_PPC_IRELATIVE: |
7619e7c7 AM |
9393 | case R_PPC_PLT32: |
9394 | case R_PPC_PLTREL32: | |
9395 | case R_PPC_PLT16_LO: | |
9396 | case R_PPC_PLT16_HI: | |
9397 | case R_PPC_PLT16_HA: | |
9398 | case R_PPC_ADDR30: | |
9399 | case R_PPC_EMB_RELSEC16: | |
9400 | case R_PPC_EMB_RELST_LO: | |
9401 | case R_PPC_EMB_RELST_HI: | |
9402 | case R_PPC_EMB_RELST_HA: | |
9403 | case R_PPC_EMB_BIT_FLD: | |
25f53a85 | 9404 | info->callbacks->einfo |
8de848d8 | 9405 | (_("%P: %B: relocation %s is not yet supported for symbol %s\n"), |
d003868e | 9406 | input_bfd, |
7619e7c7 AM |
9407 | howto->name, |
9408 | sym_name); | |
252b5132 RH |
9409 | |
9410 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 9411 | ret = FALSE; |
c316a17c | 9412 | goto copy_reloc; |
7619e7c7 | 9413 | } |
252b5132 | 9414 | |
7619e7c7 AM |
9415 | /* Do any further special processing. */ |
9416 | switch (r_type) | |
9417 | { | |
9418 | default: | |
9419 | break; | |
9420 | ||
9421 | case R_PPC_ADDR16_HA: | |
d7128ce4 | 9422 | case R_PPC_REL16_HA: |
a680de9a | 9423 | case R_PPC_REL16DX_HA: |
7619e7c7 AM |
9424 | case R_PPC_SECTOFF_HA: |
9425 | case R_PPC_TPREL16_HA: | |
9426 | case R_PPC_DTPREL16_HA: | |
7619e7c7 AM |
9427 | case R_PPC_EMB_NADDR16_HA: |
9428 | case R_PPC_EMB_RELST_HA: | |
9429 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 9430 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
9431 | 'sec' would be NULL, and we should leave the symbol |
9432 | alone (it will be set to zero elsewhere in the link). */ | |
5c5f6e17 AM |
9433 | if (sec == NULL) |
9434 | break; | |
9435 | /* Fall thru */ | |
9436 | ||
9437 | case R_PPC_PLT16_HA: | |
9438 | case R_PPC_GOT16_HA: | |
9439 | case R_PPC_GOT_TLSGD16_HA: | |
9440 | case R_PPC_GOT_TLSLD16_HA: | |
9441 | case R_PPC_GOT_TPREL16_HA: | |
9442 | case R_PPC_GOT_DTPREL16_HA: | |
9443 | /* Add 0x10000 if sign bit in 0:15 is set. | |
9444 | Bits 0:15 are not used. */ | |
9445 | addend += 0x8000; | |
7619e7c7 | 9446 | break; |
1fe532cf AM |
9447 | |
9448 | case R_PPC_ADDR16: | |
9449 | case R_PPC_ADDR16_LO: | |
9450 | case R_PPC_GOT16: | |
9451 | case R_PPC_GOT16_LO: | |
9452 | case R_PPC_SDAREL16: | |
9453 | case R_PPC_SECTOFF: | |
9454 | case R_PPC_SECTOFF_LO: | |
9455 | case R_PPC_DTPREL16: | |
9456 | case R_PPC_DTPREL16_LO: | |
9457 | case R_PPC_TPREL16: | |
9458 | case R_PPC_TPREL16_LO: | |
9459 | case R_PPC_GOT_TLSGD16: | |
9460 | case R_PPC_GOT_TLSGD16_LO: | |
9461 | case R_PPC_GOT_TLSLD16: | |
9462 | case R_PPC_GOT_TLSLD16_LO: | |
9463 | case R_PPC_GOT_DTPREL16: | |
9464 | case R_PPC_GOT_DTPREL16_LO: | |
9465 | case R_PPC_GOT_TPREL16: | |
9466 | case R_PPC_GOT_TPREL16_LO: | |
9467 | { | |
9468 | /* The 32-bit ABI lacks proper relocations to deal with | |
9469 | certain 64-bit instructions. Prevent damage to bits | |
9470 | that make up part of the insn opcode. */ | |
9471 | unsigned int insn, mask, lobit; | |
9472 | ||
c316a17c AM |
9473 | insn = bfd_get_32 (output_bfd, |
9474 | contents + rel->r_offset - d_offset); | |
1fe532cf AM |
9475 | mask = 0; |
9476 | if (is_insn_ds_form (insn)) | |
9477 | mask = 3; | |
9478 | else if (is_insn_dq_form (insn)) | |
9479 | mask = 15; | |
9480 | else | |
9481 | break; | |
a680de9a PB |
9482 | relocation += addend; |
9483 | addend = insn & mask; | |
9484 | lobit = mask & relocation; | |
1fe532cf AM |
9485 | if (lobit != 0) |
9486 | { | |
a680de9a | 9487 | relocation ^= lobit; |
1fe532cf AM |
9488 | info->callbacks->einfo |
9489 | (_("%P: %H: error: %s against `%s' not a multiple of %u\n"), | |
9490 | input_bfd, input_section, rel->r_offset, | |
9491 | howto->name, sym_name, mask + 1); | |
9492 | bfd_set_error (bfd_error_bad_value); | |
9493 | ret = FALSE; | |
9494 | } | |
1fe532cf AM |
9495 | } |
9496 | break; | |
252b5132 RH |
9497 | } |
9498 | ||
252b5132 | 9499 | #ifdef DEBUG |
55fd94b0 AM |
9500 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
9501 | "offset = %ld, addend = %ld\n", | |
252b5132 | 9502 | howto->name, |
8da6118f | 9503 | (int) r_type, |
252b5132 RH |
9504 | sym_name, |
9505 | r_symndx, | |
7619e7c7 | 9506 | (long) rel->r_offset, |
8da6118f | 9507 | (long) addend); |
252b5132 RH |
9508 | #endif |
9509 | ||
7619e7c7 AM |
9510 | if (unresolved_reloc |
9511 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
9512 | && h->def_dynamic) |
9513 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
9514 | rel->r_offset) != (bfd_vma) -1) | |
7619e7c7 | 9515 | { |
25f53a85 | 9516 | info->callbacks->einfo |
8de848d8 | 9517 | (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"), |
25f53a85 | 9518 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 9519 | howto->name, |
7619e7c7 AM |
9520 | sym_name); |
9521 | ret = FALSE; | |
9522 | } | |
9523 | ||
86c95733 AM |
9524 | /* 16-bit fields in insns mostly have signed values, but a |
9525 | few insns have 16-bit unsigned values. Really, we should | |
9526 | have different reloc types. */ | |
9527 | if (howto->complain_on_overflow != complain_overflow_dont | |
9528 | && howto->dst_mask == 0xffff | |
9529 | && (input_section->flags & SEC_CODE) != 0) | |
9530 | { | |
9531 | enum complain_overflow complain = complain_overflow_signed; | |
9532 | ||
9533 | if ((elf_section_flags (input_section) & SHF_PPC_VLE) == 0) | |
9534 | { | |
9535 | unsigned int insn; | |
9536 | ||
9537 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
a47622ac AM |
9538 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
9539 | complain = complain_overflow_bitfield; | |
9540 | else if ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
9541 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
9542 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
86c95733 AM |
9543 | complain = complain_overflow_unsigned; |
9544 | } | |
9545 | if (howto->complain_on_overflow != complain) | |
9546 | { | |
9547 | alt_howto = *howto; | |
9548 | alt_howto.complain_on_overflow = complain; | |
9549 | howto = &alt_howto; | |
9550 | } | |
9551 | } | |
9552 | ||
a680de9a PB |
9553 | if (r_type == R_PPC_REL16DX_HA) |
9554 | { | |
9555 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
9556 | if (rel->r_offset + 4 > input_section->size) | |
9557 | r = bfd_reloc_outofrange; | |
9558 | else | |
9559 | { | |
9560 | unsigned int insn; | |
9561 | ||
9562 | relocation += addend; | |
9563 | relocation -= (rel->r_offset | |
9564 | + input_section->output_offset | |
9565 | + input_section->output_section->vma); | |
9566 | relocation >>= 16; | |
9567 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
9568 | insn &= ~0x1fffc1; | |
9569 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
9570 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
9571 | r = bfd_reloc_ok; | |
9572 | } | |
9573 | } | |
9574 | else | |
9575 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
9576 | rel->r_offset, relocation, addend); | |
252b5132 | 9577 | |
7619e7c7 | 9578 | if (r != bfd_reloc_ok) |
252b5132 | 9579 | { |
7619e7c7 | 9580 | if (r == bfd_reloc_overflow) |
252b5132 | 9581 | { |
c3301df1 | 9582 | overflow: |
8131c122 AM |
9583 | /* On code like "if (foo) foo();" don't report overflow |
9584 | on a branch to zero when foo is undefined. */ | |
9585 | if (!warned | |
9586 | && !(h != NULL | |
9587 | && (h->root.type == bfd_link_hash_undefweak | |
9588 | || h->root.type == bfd_link_hash_undefined) | |
9589 | && is_branch_reloc (r_type))) | |
1a72702b AM |
9590 | info->callbacks->reloc_overflow |
9591 | (info, (h ? &h->root : NULL), sym_name, howto->name, | |
9592 | rel->r_addend, input_bfd, input_section, rel->r_offset); | |
dc1bc0c9 RH |
9593 | } |
9594 | else | |
9595 | { | |
25f53a85 | 9596 | info->callbacks->einfo |
8de848d8 | 9597 | (_("%P: %H: %s reloc against `%s': error %d\n"), |
25f53a85 AM |
9598 | input_bfd, input_section, rel->r_offset, |
9599 | howto->name, sym_name, (int) r); | |
7619e7c7 | 9600 | ret = FALSE; |
252b5132 RH |
9601 | } |
9602 | } | |
c316a17c AM |
9603 | copy_reloc: |
9604 | if (wrel != rel) | |
9605 | *wrel = *rel; | |
9606 | } | |
9607 | ||
9608 | if (wrel != rel) | |
9609 | { | |
9610 | Elf_Internal_Shdr *rel_hdr; | |
9611 | size_t deleted = rel - wrel; | |
9612 | ||
9613 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
9614 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9615 | if (rel_hdr->sh_size == 0) | |
9616 | { | |
9617 | /* It is too late to remove an empty reloc section. Leave | |
9618 | one NONE reloc. | |
9619 | ??? What is wrong with an empty section??? */ | |
9620 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
9621 | deleted -= 1; | |
9622 | wrel++; | |
9623 | } | |
9624 | relend = wrel; | |
9625 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
9626 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
9627 | input_section->reloc_count -= deleted; | |
252b5132 RH |
9628 | } |
9629 | ||
252b5132 RH |
9630 | #ifdef DEBUG |
9631 | fprintf (stderr, "\n"); | |
9632 | #endif | |
9633 | ||
53291d1f AM |
9634 | if (input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
9635 | && input_section->size != input_section->rawsize | |
9636 | && (strcmp (input_section->output_section->name, ".init") == 0 | |
9637 | || strcmp (input_section->output_section->name, ".fini") == 0)) | |
9638 | { | |
9639 | /* Branch around the trampolines. */ | |
9640 | unsigned int insn = B + input_section->size - input_section->rawsize; | |
9641 | bfd_put_32 (input_bfd, insn, contents + input_section->rawsize); | |
9642 | } | |
9643 | ||
5446cbdf | 9644 | if (htab->params->ppc476_workaround |
795bc6b3 | 9645 | && input_section->sec_info_type == SEC_INFO_TYPE_TARGET |
0e1862bb | 9646 | && (!bfd_link_relocatable (info) |
795bc6b3 AM |
9647 | || (input_section->output_section->alignment_power |
9648 | >= htab->params->pagesize_p2))) | |
5446cbdf | 9649 | { |
5446cbdf | 9650 | bfd_vma start_addr, end_addr, addr; |
795bc6b3 | 9651 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; |
5446cbdf | 9652 | |
5446cbdf | 9653 | if (relax_info->workaround_size != 0) |
40fd06d1 AM |
9654 | { |
9655 | bfd_byte *p; | |
9656 | unsigned int n; | |
9657 | bfd_byte fill[4]; | |
9658 | ||
9659 | bfd_put_32 (input_bfd, BA, fill); | |
9660 | p = contents + input_section->size - relax_info->workaround_size; | |
9661 | n = relax_info->workaround_size >> 2; | |
9662 | while (n--) | |
9663 | { | |
9664 | memcpy (p, fill, 4); | |
9665 | p += 4; | |
9666 | } | |
9667 | } | |
5446cbdf AM |
9668 | |
9669 | /* The idea is: Replace the last instruction on a page with a | |
9670 | branch to a patch area. Put the insn there followed by a | |
9671 | branch back to the next page. Complicated a little by | |
9672 | needing to handle moved conditional branches, and by not | |
9673 | wanting to touch data-in-text. */ | |
9674 | ||
9675 | start_addr = (input_section->output_section->vma | |
9676 | + input_section->output_offset); | |
9677 | end_addr = (start_addr + input_section->size | |
9678 | - relax_info->workaround_size); | |
9679 | for (addr = ((start_addr & -pagesize) + pagesize - 4); | |
9680 | addr < end_addr; | |
9681 | addr += pagesize) | |
9682 | { | |
9683 | bfd_vma offset = addr - start_addr; | |
9684 | Elf_Internal_Rela *lo, *hi; | |
9685 | bfd_boolean is_data; | |
9686 | bfd_vma patch_off, patch_addr; | |
9687 | unsigned int insn; | |
9688 | ||
9689 | /* Do we have a data reloc at this offset? If so, leave | |
9690 | the word alone. */ | |
9691 | is_data = FALSE; | |
9692 | lo = relocs; | |
668e22e5 AM |
9693 | hi = relend; |
9694 | rel = NULL; | |
5446cbdf AM |
9695 | while (lo < hi) |
9696 | { | |
9697 | rel = lo + (hi - lo) / 2; | |
9698 | if (rel->r_offset < offset) | |
9699 | lo = rel + 1; | |
668e22e5 | 9700 | else if (rel->r_offset > offset + 3) |
5446cbdf AM |
9701 | hi = rel; |
9702 | else | |
9703 | { | |
9704 | switch (ELF32_R_TYPE (rel->r_info)) | |
9705 | { | |
9706 | case R_PPC_ADDR32: | |
9707 | case R_PPC_UADDR32: | |
9708 | case R_PPC_REL32: | |
9709 | case R_PPC_ADDR30: | |
9710 | is_data = TRUE; | |
9711 | break; | |
9712 | default: | |
9713 | break; | |
9714 | } | |
9715 | break; | |
9716 | } | |
9717 | } | |
9718 | if (is_data) | |
9719 | continue; | |
9720 | ||
b4ab4364 AM |
9721 | /* Some instructions can be left alone too. Unconditional |
9722 | branches, except for bcctr with BO=0x14 (bctr, bctrl), | |
9723 | avoid the icache failure. | |
9724 | ||
9725 | The problem occurs due to prefetch across a page boundary | |
9726 | where stale instructions can be fetched from the next | |
9727 | page, and the mechanism for flushing these bad | |
9728 | instructions fails under certain circumstances. The | |
9729 | unconditional branches: | |
9730 | 1) Branch: b, bl, ba, bla, | |
9731 | 2) Branch Conditional: bc, bca, bcl, bcla, | |
9732 | 3) Branch Conditional to Link Register: bclr, bclrl, | |
9733 | where (2) and (3) have BO=0x14 making them unconditional, | |
9734 | prevent the bad prefetch because the prefetch itself is | |
9735 | affected by these instructions. This happens even if the | |
9736 | instruction is not executed. | |
9737 | ||
9738 | A bctr example: | |
9739 | . | |
9740 | . lis 9,new_page@ha | |
9741 | . addi 9,9,new_page@l | |
9742 | . mtctr 9 | |
9743 | . bctr | |
9744 | . nop | |
9745 | . nop | |
9746 | . new_page: | |
9747 | . | |
9748 | The bctr is not predicted taken due to ctr not being | |
9749 | ready, so prefetch continues on past the bctr into the | |
9750 | new page which might have stale instructions. If they | |
9751 | fail to be flushed, then they will be executed after the | |
9752 | bctr executes. Either of the following modifications | |
9753 | prevent the bad prefetch from happening in the first | |
9754 | place: | |
9755 | . | |
1b786873 L |
9756 | . lis 9,new_page@ha lis 9,new_page@ha |
9757 | . addi 9,9,new_page@l addi 9,9,new_page@l | |
9758 | . mtctr 9 mtctr 9 | |
9759 | . bctr bctr | |
b4ab4364 | 9760 | . nop b somewhere_else |
1b786873 L |
9761 | . b somewhere_else nop |
9762 | . new_page: new_page: | |
b4ab4364 | 9763 | . */ |
5446cbdf | 9764 | insn = bfd_get_32 (input_bfd, contents + offset); |
b4ab4364 AM |
9765 | if ((insn & (0x3f << 26)) == (18u << 26) /* b,bl,ba,bla */ |
9766 | || ((insn & (0x3f << 26)) == (16u << 26) /* bc,bcl,bca,bcla*/ | |
9767 | && (insn & (0x14 << 21)) == (0x14 << 21)) /* with BO=0x14 */ | |
5446cbdf | 9768 | || ((insn & (0x3f << 26)) == (19u << 26) |
b4ab4364 AM |
9769 | && (insn & (0x3ff << 1)) == (16u << 1) /* bclr,bclrl */ |
9770 | && (insn & (0x14 << 21)) == (0x14 << 21)))/* with BO=0x14 */ | |
5446cbdf AM |
9771 | continue; |
9772 | ||
9773 | patch_addr = (start_addr + input_section->size | |
9774 | - relax_info->workaround_size); | |
9775 | patch_addr = (patch_addr + 15) & -16; | |
9776 | patch_off = patch_addr - start_addr; | |
9777 | bfd_put_32 (input_bfd, B + patch_off - offset, contents + offset); | |
668e22e5 AM |
9778 | |
9779 | if (rel != NULL | |
9780 | && rel->r_offset >= offset | |
9781 | && rel->r_offset < offset + 4) | |
9782 | { | |
f8b44781 AM |
9783 | asection *sreloc; |
9784 | ||
668e22e5 AM |
9785 | /* If the insn we are patching had a reloc, adjust the |
9786 | reloc r_offset so that the reloc applies to the moved | |
9787 | location. This matters for -r and --emit-relocs. */ | |
9788 | if (rel + 1 != relend) | |
9789 | { | |
9790 | Elf_Internal_Rela tmp = *rel; | |
9791 | ||
9792 | /* Keep the relocs sorted by r_offset. */ | |
9793 | memmove (rel, rel + 1, (relend - (rel + 1)) * sizeof (*rel)); | |
9794 | relend[-1] = tmp; | |
9795 | } | |
9796 | relend[-1].r_offset += patch_off - offset; | |
f8b44781 AM |
9797 | |
9798 | /* Adjust REL16 addends too. */ | |
9799 | switch (ELF32_R_TYPE (relend[-1].r_info)) | |
9800 | { | |
9801 | case R_PPC_REL16: | |
9802 | case R_PPC_REL16_LO: | |
9803 | case R_PPC_REL16_HI: | |
9804 | case R_PPC_REL16_HA: | |
9805 | relend[-1].r_addend += patch_off - offset; | |
9806 | break; | |
9807 | default: | |
9808 | break; | |
9809 | } | |
9810 | ||
9811 | /* If we are building a PIE or shared library with | |
9812 | non-PIC objects, perhaps we had a dynamic reloc too? | |
9813 | If so, the dynamic reloc must move with the insn. */ | |
9814 | sreloc = elf_section_data (input_section)->sreloc; | |
9815 | if (sreloc != NULL) | |
9816 | { | |
1d5c94cb | 9817 | Elf32_External_Rela *slo, *shi, *srelend; |
f8b44781 AM |
9818 | bfd_vma soffset; |
9819 | ||
1d5c94cb AM |
9820 | slo = (Elf32_External_Rela *) sreloc->contents; |
9821 | shi = srelend = slo + sreloc->reloc_count; | |
f8b44781 AM |
9822 | soffset = (offset + input_section->output_section->vma |
9823 | + input_section->output_offset); | |
9824 | while (slo < shi) | |
9825 | { | |
1d5c94cb AM |
9826 | Elf32_External_Rela *srel = slo + (shi - slo) / 2; |
9827 | bfd_elf32_swap_reloca_in (output_bfd, (bfd_byte *) srel, | |
9828 | &outrel); | |
f8b44781 AM |
9829 | if (outrel.r_offset < soffset) |
9830 | slo = srel + 1; | |
9831 | else if (outrel.r_offset > soffset + 3) | |
9832 | shi = srel; | |
9833 | else | |
9834 | { | |
1d5c94cb | 9835 | if (srel + 1 != srelend) |
f8b44781 | 9836 | { |
1d5c94cb AM |
9837 | memmove (srel, srel + 1, |
9838 | (srelend - (srel + 1)) * sizeof (*srel)); | |
9839 | srel = srelend - 1; | |
f8b44781 AM |
9840 | } |
9841 | outrel.r_offset += patch_off - offset; | |
1d5c94cb AM |
9842 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
9843 | (bfd_byte *) srel); | |
f8b44781 AM |
9844 | break; |
9845 | } | |
9846 | } | |
9847 | } | |
668e22e5 AM |
9848 | } |
9849 | else | |
9850 | rel = NULL; | |
9851 | ||
5446cbdf AM |
9852 | if ((insn & (0x3f << 26)) == (16u << 26) /* bc */ |
9853 | && (insn & 2) == 0 /* relative */) | |
9854 | { | |
9855 | bfd_vma delta = ((insn & 0xfffc) ^ 0x8000) - 0x8000; | |
9856 | ||
9857 | delta += offset - patch_off; | |
0e1862bb | 9858 | if (bfd_link_relocatable (info) && rel != NULL) |
668e22e5 | 9859 | delta = 0; |
0e1862bb | 9860 | if (!bfd_link_relocatable (info) && rel != NULL) |
668e22e5 AM |
9861 | { |
9862 | enum elf_ppc_reloc_type r_type; | |
9863 | ||
9864 | r_type = ELF32_R_TYPE (relend[-1].r_info); | |
9865 | if (r_type == R_PPC_REL14_BRTAKEN) | |
9866 | insn |= BRANCH_PREDICT_BIT; | |
9867 | else if (r_type == R_PPC_REL14_BRNTAKEN) | |
9868 | insn &= ~BRANCH_PREDICT_BIT; | |
9869 | else | |
9870 | BFD_ASSERT (r_type == R_PPC_REL14); | |
9871 | ||
9872 | if ((r_type == R_PPC_REL14_BRTAKEN | |
9873 | || r_type == R_PPC_REL14_BRNTAKEN) | |
9874 | && delta + 0x8000 < 0x10000 | |
9875 | && (bfd_signed_vma) delta < 0) | |
9876 | insn ^= BRANCH_PREDICT_BIT; | |
9877 | } | |
5446cbdf AM |
9878 | if (delta + 0x8000 < 0x10000) |
9879 | { | |
9880 | bfd_put_32 (input_bfd, | |
9881 | (insn & ~0xfffc) | (delta & 0xfffc), | |
9882 | contents + patch_off); | |
9883 | patch_off += 4; | |
9884 | bfd_put_32 (input_bfd, | |
9885 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9886 | contents + patch_off); | |
9887 | patch_off += 4; | |
9888 | } | |
9889 | else | |
9890 | { | |
668e22e5 AM |
9891 | if (rel != NULL) |
9892 | { | |
9893 | unsigned int r_sym = ELF32_R_SYM (relend[-1].r_info); | |
9894 | ||
9895 | relend[-1].r_offset += 8; | |
9896 | relend[-1].r_info = ELF32_R_INFO (r_sym, R_PPC_REL24); | |
9897 | } | |
5446cbdf AM |
9898 | bfd_put_32 (input_bfd, |
9899 | (insn & ~0xfffc) | 8, | |
9900 | contents + patch_off); | |
9901 | patch_off += 4; | |
9902 | bfd_put_32 (input_bfd, | |
9903 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9904 | contents + patch_off); | |
9905 | patch_off += 4; | |
9906 | bfd_put_32 (input_bfd, | |
9907 | B | ((delta - 8) & 0x3fffffc), | |
9908 | contents + patch_off); | |
9909 | patch_off += 4; | |
9910 | } | |
9911 | } | |
9912 | else | |
9913 | { | |
9914 | bfd_put_32 (input_bfd, insn, contents + patch_off); | |
9915 | patch_off += 4; | |
9916 | bfd_put_32 (input_bfd, | |
9917 | B | ((offset + 4 - patch_off) & 0x3fffffc), | |
9918 | contents + patch_off); | |
9919 | patch_off += 4; | |
9920 | } | |
9921 | BFD_ASSERT (patch_off <= input_section->size); | |
9922 | relax_info->workaround_size = input_section->size - patch_off; | |
9923 | } | |
9924 | } | |
9925 | ||
252b5132 RH |
9926 | return ret; |
9927 | } | |
252b5132 | 9928 | \f |
25dbc73a AM |
9929 | /* Finish up dynamic symbol handling. We set the contents of various |
9930 | dynamic sections here. */ | |
c5fccbec | 9931 | |
b34976b6 | 9932 | static bfd_boolean |
25dbc73a AM |
9933 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
9934 | struct bfd_link_info *info, | |
9935 | struct elf_link_hash_entry *h, | |
9936 | Elf_Internal_Sym *sym) | |
e1a9cb8e | 9937 | { |
25dbc73a | 9938 | struct ppc_elf_link_hash_table *htab; |
a6aa5195 AM |
9939 | struct plt_entry *ent; |
9940 | bfd_boolean doneone; | |
e1a9cb8e | 9941 | |
25dbc73a AM |
9942 | #ifdef DEBUG |
9943 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
9944 | h->root.root.string); | |
9945 | #endif | |
e1a9cb8e | 9946 | |
25dbc73a AM |
9947 | htab = ppc_elf_hash_table (info); |
9948 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
e1a9cb8e | 9949 | |
a6aa5195 AM |
9950 | doneone = FALSE; |
9951 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
9952 | if (ent->plt.offset != (bfd_vma) -1) | |
9953 | { | |
9954 | if (!doneone) | |
9955 | { | |
9956 | Elf_Internal_Rela rela; | |
9957 | bfd_byte *loc; | |
9958 | bfd_vma reloc_index; | |
e1a9cb8e | 9959 | |
e054468f | 9960 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
9961 | || !htab->elf.dynamic_sections_created |
9962 | || h->dynindx == -1) | |
9d8504b1 PB |
9963 | reloc_index = ent->plt.offset / 4; |
9964 | else | |
9965 | { | |
9966 | reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) | |
9967 | / htab->plt_slot_size); | |
9968 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES | |
4a3dc543 | 9969 | && htab->plt_type == PLT_OLD) |
9d8504b1 PB |
9970 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; |
9971 | } | |
9972 | ||
a6aa5195 AM |
9973 | /* This symbol has an entry in the procedure linkage table. |
9974 | Set it up. */ | |
e054468f | 9975 | if (htab->plt_type == PLT_VXWORKS |
25f23106 AM |
9976 | && htab->elf.dynamic_sections_created |
9977 | && h->dynindx != -1) | |
a6aa5195 | 9978 | { |
9d8504b1 PB |
9979 | bfd_vma got_offset; |
9980 | const bfd_vma *plt_entry; | |
5b914448 | 9981 | |
9d8504b1 PB |
9982 | /* The first three entries in .got.plt are reserved. */ |
9983 | got_offset = (reloc_index + 3) * 4; | |
9984 | ||
9985 | /* Use the right PLT. */ | |
0e1862bb | 9986 | plt_entry = bfd_link_pic (info) ? ppc_elf_vxworks_pic_plt_entry |
9d8504b1 PB |
9987 | : ppc_elf_vxworks_plt_entry; |
9988 | ||
9989 | /* Fill in the .plt on VxWorks. */ | |
0e1862bb | 9990 | if (bfd_link_pic (info)) |
9d8504b1 | 9991 | { |
9d8504b1 | 9992 | bfd_put_32 (output_bfd, |
e87d4038 | 9993 | plt_entry[0] | PPC_HA (got_offset), |
9d8504b1 PB |
9994 | htab->plt->contents + ent->plt.offset + 0); |
9995 | bfd_put_32 (output_bfd, | |
e87d4038 | 9996 | plt_entry[1] | PPC_LO (got_offset), |
9d8504b1 PB |
9997 | htab->plt->contents + ent->plt.offset + 4); |
9998 | } | |
9999 | else | |
10000 | { | |
e87d4038 | 10001 | bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); |
9d8504b1 PB |
10002 | |
10003 | bfd_put_32 (output_bfd, | |
e87d4038 | 10004 | plt_entry[0] | PPC_HA (got_loc), |
9d8504b1 PB |
10005 | htab->plt->contents + ent->plt.offset + 0); |
10006 | bfd_put_32 (output_bfd, | |
e87d4038 | 10007 | plt_entry[1] | PPC_LO (got_loc), |
9d8504b1 PB |
10008 | htab->plt->contents + ent->plt.offset + 4); |
10009 | } | |
10010 | ||
10011 | bfd_put_32 (output_bfd, plt_entry[2], | |
10012 | htab->plt->contents + ent->plt.offset + 8); | |
10013 | bfd_put_32 (output_bfd, plt_entry[3], | |
10014 | htab->plt->contents + ent->plt.offset + 12); | |
10015 | ||
10016 | /* This instruction is an immediate load. The value loaded is | |
10017 | the byte offset of the R_PPC_JMP_SLOT relocation from the | |
10018 | start of the .rela.plt section. The value is stored in the | |
10019 | low-order 16 bits of the load instruction. */ | |
10020 | /* NOTE: It appears that this is now an index rather than a | |
10021 | prescaled offset. */ | |
5b914448 | 10022 | bfd_put_32 (output_bfd, |
9d8504b1 PB |
10023 | plt_entry[4] | reloc_index, |
10024 | htab->plt->contents + ent->plt.offset + 16); | |
10025 | /* This instruction is a PC-relative branch whose target is | |
10026 | the start of the PLT section. The address of this branch | |
10027 | instruction is 20 bytes beyond the start of this PLT entry. | |
10028 | The address is encoded in bits 6-29, inclusive. The value | |
10029 | stored is right-shifted by two bits, permitting a 26-bit | |
10030 | offset. */ | |
5b914448 AM |
10031 | bfd_put_32 (output_bfd, |
10032 | (plt_entry[5] | |
9d8504b1 PB |
10033 | | (-(ent->plt.offset + 20) & 0x03fffffc)), |
10034 | htab->plt->contents + ent->plt.offset + 20); | |
10035 | bfd_put_32 (output_bfd, plt_entry[6], | |
10036 | htab->plt->contents + ent->plt.offset + 24); | |
10037 | bfd_put_32 (output_bfd, plt_entry[7], | |
10038 | htab->plt->contents + ent->plt.offset + 28); | |
10039 | ||
10040 | /* Fill in the GOT entry corresponding to this PLT slot with | |
a8685210 | 10041 | the address immediately after the "bctr" instruction |
9d8504b1 PB |
10042 | in this PLT entry. */ |
10043 | bfd_put_32 (output_bfd, (htab->plt->output_section->vma | |
10044 | + htab->plt->output_offset | |
10045 | + ent->plt.offset + 16), | |
10046 | htab->sgotplt->contents + got_offset); | |
10047 | ||
0e1862bb | 10048 | if (!bfd_link_pic (info)) |
9d8504b1 PB |
10049 | { |
10050 | /* Fill in a couple of entries in .rela.plt.unloaded. */ | |
10051 | loc = htab->srelplt2->contents | |
10052 | + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index | |
10053 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) | |
10054 | * sizeof (Elf32_External_Rela)); | |
10055 | ||
10056 | /* Provide the @ha relocation for the first instruction. */ | |
10057 | rela.r_offset = (htab->plt->output_section->vma | |
10058 | + htab->plt->output_offset | |
10059 | + ent->plt.offset + 2); | |
636ce3f5 | 10060 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10061 | R_PPC_ADDR16_HA); |
10062 | rela.r_addend = got_offset; | |
10063 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10064 | loc += sizeof (Elf32_External_Rela); | |
10065 | ||
10066 | /* Provide the @l relocation for the second instruction. */ | |
10067 | rela.r_offset = (htab->plt->output_section->vma | |
10068 | + htab->plt->output_offset | |
10069 | + ent->plt.offset + 6); | |
636ce3f5 | 10070 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
10071 | R_PPC_ADDR16_LO); |
10072 | rela.r_addend = got_offset; | |
10073 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10074 | loc += sizeof (Elf32_External_Rela); | |
10075 | ||
10076 | /* Provide a relocation for the GOT entry corresponding to this | |
10077 | PLT slot. Point it at the middle of the .plt entry. */ | |
10078 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10079 | + htab->sgotplt->output_offset | |
10080 | + got_offset); | |
7325306f | 10081 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, |
9d8504b1 PB |
10082 | R_PPC_ADDR32); |
10083 | rela.r_addend = ent->plt.offset + 16; | |
10084 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10085 | } | |
10086 | ||
10087 | /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. | |
10088 | In particular, the offset for the relocation is not the | |
10089 | address of the PLT entry for this function, as specified | |
10090 | by the ABI. Instead, the offset is set to the address of | |
10091 | the GOT slot for this function. See EABI 4.4.4.1. */ | |
10092 | rela.r_offset = (htab->sgotplt->output_section->vma | |
10093 | + htab->sgotplt->output_offset | |
10094 | + got_offset); | |
10095 | ||
a6aa5195 AM |
10096 | } |
10097 | else | |
10098 | { | |
e054468f | 10099 | asection *splt = htab->plt; |
25f23106 AM |
10100 | if (!htab->elf.dynamic_sections_created |
10101 | || h->dynindx == -1) | |
e054468f AM |
10102 | splt = htab->iplt; |
10103 | ||
10104 | rela.r_offset = (splt->output_section->vma | |
10105 | + splt->output_offset | |
9d8504b1 | 10106 | + ent->plt.offset); |
e054468f | 10107 | if (htab->plt_type == PLT_OLD |
25f23106 AM |
10108 | || !htab->elf.dynamic_sections_created |
10109 | || h->dynindx == -1) | |
9d8504b1 PB |
10110 | { |
10111 | /* We don't need to fill in the .plt. The ppc dynamic | |
10112 | linker will fill it in. */ | |
10113 | } | |
10114 | else | |
10115 | { | |
10116 | bfd_vma val = (htab->glink_pltresolve + ent->plt.offset | |
10117 | + htab->glink->output_section->vma | |
10118 | + htab->glink->output_offset); | |
10119 | bfd_put_32 (output_bfd, val, | |
e054468f | 10120 | splt->contents + ent->plt.offset); |
9d8504b1 | 10121 | } |
a6aa5195 | 10122 | } |
e1a9cb8e | 10123 | |
a6aa5195 | 10124 | /* Fill in the entry in the .rela.plt section. */ |
a6aa5195 | 10125 | rela.r_addend = 0; |
e054468f AM |
10126 | if (!htab->elf.dynamic_sections_created |
10127 | || h->dynindx == -1) | |
10128 | { | |
10129 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
10130 | && h->def_regular | |
10131 | && (h->root.type == bfd_link_hash_defined | |
10132 | || h->root.type == bfd_link_hash_defweak)); | |
10133 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
10134 | rela.r_addend = SYM_VAL (h); | |
10135 | } | |
10136 | else | |
10137 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
e1a9cb8e | 10138 | |
25f23106 AM |
10139 | if (!htab->elf.dynamic_sections_created |
10140 | || h->dynindx == -1) | |
10141 | loc = (htab->reliplt->contents | |
10142 | + (htab->reliplt->reloc_count++ | |
10143 | * sizeof (Elf32_External_Rela))); | |
e054468f | 10144 | else |
25f23106 AM |
10145 | loc = (htab->relplt->contents |
10146 | + reloc_index * sizeof (Elf32_External_Rela)); | |
a6aa5195 | 10147 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
e1a9cb8e | 10148 | |
a6aa5195 AM |
10149 | if (!h->def_regular) |
10150 | { | |
0eb4a168 AM |
10151 | /* Mark the symbol as undefined, rather than as |
10152 | defined in the .plt section. Leave the value if | |
10153 | there were any relocations where pointer equality | |
10154 | matters (this is a clue for the dynamic linker, to | |
10155 | make function pointer comparisons work between an | |
10156 | application and shared library), otherwise set it | |
10157 | to zero. */ | |
a6aa5195 | 10158 | sym->st_shndx = SHN_UNDEF; |
0eb4a168 | 10159 | if (!h->pointer_equality_needed) |
a6aa5195 | 10160 | sym->st_value = 0; |
0eb4a168 AM |
10161 | else if (!h->ref_regular_nonweak) |
10162 | { | |
625af618 AM |
10163 | /* This breaks function pointer comparisons, but |
10164 | that is better than breaking tests for a NULL | |
0eb4a168 | 10165 | function pointer. */ |
0eb4a168 AM |
10166 | sym->st_value = 0; |
10167 | } | |
a6aa5195 | 10168 | } |
de972ffa | 10169 | else if (h->type == STT_GNU_IFUNC |
0e1862bb | 10170 | && !bfd_link_pic (info)) |
de972ffa AM |
10171 | { |
10172 | /* Set the value of ifunc symbols in a non-pie | |
10173 | executable to the glink entry. This is to avoid | |
10174 | text relocations. We can't do this for ifunc in | |
10175 | allocate_dynrelocs, as we do for normal dynamic | |
10176 | function symbols with plt entries, because we need | |
10177 | to keep the original value around for the ifunc | |
10178 | relocation. */ | |
10179 | sym->st_shndx = (_bfd_elf_section_from_bfd_section | |
10180 | (output_bfd, htab->glink->output_section)); | |
5b914448 AM |
10181 | sym->st_value = (ent->glink_offset |
10182 | + htab->glink->output_offset | |
de972ffa AM |
10183 | + htab->glink->output_section->vma); |
10184 | } | |
a6aa5195 AM |
10185 | doneone = TRUE; |
10186 | } | |
e1a9cb8e | 10187 | |
e054468f | 10188 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
10189 | || !htab->elf.dynamic_sections_created |
10190 | || h->dynindx == -1) | |
a6aa5195 | 10191 | { |
a7f2871e | 10192 | unsigned char *p; |
e054468f | 10193 | asection *splt = htab->plt; |
25f23106 AM |
10194 | if (!htab->elf.dynamic_sections_created |
10195 | || h->dynindx == -1) | |
e054468f | 10196 | splt = htab->iplt; |
e1a9cb8e | 10197 | |
a7f2871e AM |
10198 | p = (unsigned char *) htab->glink->contents + ent->glink_offset; |
10199 | ||
5446cbdf | 10200 | if (h == htab->tls_get_addr && !htab->params->no_tls_get_addr_opt) |
a7f2871e AM |
10201 | { |
10202 | bfd_put_32 (output_bfd, LWZ_11_3, p); | |
10203 | p += 4; | |
10204 | bfd_put_32 (output_bfd, LWZ_12_3 + 4, p); | |
10205 | p += 4; | |
10206 | bfd_put_32 (output_bfd, MR_0_3, p); | |
10207 | p += 4; | |
10208 | bfd_put_32 (output_bfd, CMPWI_11_0, p); | |
10209 | p += 4; | |
10210 | bfd_put_32 (output_bfd, ADD_3_12_2, p); | |
10211 | p += 4; | |
10212 | bfd_put_32 (output_bfd, BEQLR, p); | |
10213 | p += 4; | |
10214 | bfd_put_32 (output_bfd, MR_3_0, p); | |
10215 | p += 4; | |
10216 | bfd_put_32 (output_bfd, NOP, p); | |
10217 | p += 4; | |
10218 | } | |
10219 | ||
10220 | write_glink_stub (ent, splt, p, info); | |
e1a9cb8e | 10221 | |
0e1862bb | 10222 | if (!bfd_link_pic (info)) |
e054468f AM |
10223 | /* We only need one non-PIC glink stub. */ |
10224 | break; | |
a6aa5195 AM |
10225 | } |
10226 | else | |
10227 | break; | |
10228 | } | |
e1a9cb8e | 10229 | |
25dbc73a AM |
10230 | if (h->needs_copy) |
10231 | { | |
10232 | asection *s; | |
10233 | Elf_Internal_Rela rela; | |
10234 | bfd_byte *loc; | |
e1a9cb8e | 10235 | |
25dbc73a | 10236 | /* This symbols needs a copy reloc. Set it up. */ |
e1a9cb8e | 10237 | |
25dbc73a AM |
10238 | #ifdef DEBUG |
10239 | fprintf (stderr, ", copy"); | |
10240 | #endif | |
e1a9cb8e | 10241 | |
25dbc73a | 10242 | BFD_ASSERT (h->dynindx != -1); |
86bbe32f | 10243 | |
4dc4a9a5 | 10244 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
10245 | s = htab->relsbss; |
10246 | else | |
10247 | s = htab->relbss; | |
10248 | BFD_ASSERT (s != NULL); | |
e1a9cb8e | 10249 | |
e87d4038 | 10250 | rela.r_offset = SYM_VAL (h); |
25dbc73a AM |
10251 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
10252 | rela.r_addend = 0; | |
10253 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
10254 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10255 | } | |
e1a9cb8e | 10256 | |
25dbc73a AM |
10257 | #ifdef DEBUG |
10258 | fprintf (stderr, "\n"); | |
10259 | #endif | |
e1a9cb8e | 10260 | |
25dbc73a AM |
10261 | return TRUE; |
10262 | } | |
10263 | \f | |
10264 | static enum elf_reloc_type_class | |
7e612e98 AM |
10265 | ppc_elf_reloc_type_class (const struct bfd_link_info *info, |
10266 | const asection *rel_sec, | |
10267 | const Elf_Internal_Rela *rela) | |
e1a9cb8e | 10268 | { |
7e612e98 AM |
10269 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
10270 | ||
10271 | if (rel_sec == htab->reliplt) | |
10272 | return reloc_class_ifunc; | |
10273 | ||
25dbc73a AM |
10274 | switch (ELF32_R_TYPE (rela->r_info)) |
10275 | { | |
10276 | case R_PPC_RELATIVE: | |
10277 | return reloc_class_relative; | |
25dbc73a AM |
10278 | case R_PPC_JMP_SLOT: |
10279 | return reloc_class_plt; | |
10280 | case R_PPC_COPY: | |
10281 | return reloc_class_copy; | |
10282 | default: | |
10283 | return reloc_class_normal; | |
10284 | } | |
e1a9cb8e | 10285 | } |
25dbc73a AM |
10286 | \f |
10287 | /* Finish up the dynamic sections. */ | |
e1a9cb8e | 10288 | |
25dbc73a AM |
10289 | static bfd_boolean |
10290 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, | |
10291 | struct bfd_link_info *info) | |
e1a9cb8e | 10292 | { |
25dbc73a | 10293 | asection *sdyn; |
9d8504b1 | 10294 | asection *splt; |
25dbc73a | 10295 | struct ppc_elf_link_hash_table *htab; |
1fe44d79 | 10296 | bfd_vma got; |
e87d4038 AM |
10297 | bfd *dynobj; |
10298 | bfd_boolean ret = TRUE; | |
e1a9cb8e | 10299 | |
25dbc73a AM |
10300 | #ifdef DEBUG |
10301 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
10302 | #endif | |
6b0817e5 | 10303 | |
25dbc73a | 10304 | htab = ppc_elf_hash_table (info); |
9d8504b1 | 10305 | dynobj = elf_hash_table (info)->dynobj; |
3d4d4302 | 10306 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
9d8504b1 | 10307 | if (htab->is_vxworks) |
3d4d4302 | 10308 | splt = bfd_get_linker_section (dynobj, ".plt"); |
9d8504b1 PB |
10309 | else |
10310 | splt = NULL; | |
e1a9cb8e | 10311 | |
1fe44d79 AM |
10312 | got = 0; |
10313 | if (htab->elf.hgot != NULL) | |
e87d4038 | 10314 | got = SYM_VAL (htab->elf.hgot); |
1fe44d79 | 10315 | |
25dbc73a | 10316 | if (htab->elf.dynamic_sections_created) |
e1a9cb8e | 10317 | { |
25dbc73a | 10318 | Elf32_External_Dyn *dyncon, *dynconend; |
e1a9cb8e | 10319 | |
25dbc73a | 10320 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
86bbe32f | 10321 | |
25dbc73a AM |
10322 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
10323 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
10324 | for (; dyncon < dynconend; dyncon++) | |
10325 | { | |
10326 | Elf_Internal_Dyn dyn; | |
10327 | asection *s; | |
e1a9cb8e | 10328 | |
9d8504b1 | 10329 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
86bbe32f | 10330 | |
25dbc73a AM |
10331 | switch (dyn.d_tag) |
10332 | { | |
10333 | case DT_PLTGOT: | |
9d8504b1 PB |
10334 | if (htab->is_vxworks) |
10335 | s = htab->sgotplt; | |
10336 | else | |
10337 | s = htab->plt; | |
25dbc73a AM |
10338 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
10339 | break; | |
86bbe32f | 10340 | |
25dbc73a AM |
10341 | case DT_PLTRELSZ: |
10342 | dyn.d_un.d_val = htab->relplt->size; | |
10343 | break; | |
e1a9cb8e | 10344 | |
25dbc73a AM |
10345 | case DT_JMPREL: |
10346 | s = htab->relplt; | |
10347 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
10348 | break; | |
2f89ff8d | 10349 | |
1fe44d79 AM |
10350 | case DT_PPC_GOT: |
10351 | dyn.d_un.d_ptr = got; | |
d7128ce4 AM |
10352 | break; |
10353 | ||
9d8504b1 PB |
10354 | case DT_RELASZ: |
10355 | if (htab->is_vxworks) | |
10356 | { | |
10357 | if (htab->relplt) | |
10358 | dyn.d_un.d_ptr -= htab->relplt->size; | |
10359 | break; | |
10360 | } | |
10361 | continue; | |
10362 | ||
25dbc73a | 10363 | default: |
7a2b07ff NS |
10364 | if (htab->is_vxworks |
10365 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
10366 | break; | |
25dbc73a AM |
10367 | continue; |
10368 | } | |
4c45e5c9 | 10369 | |
25dbc73a AM |
10370 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
10371 | } | |
10372 | } | |
4c45e5c9 | 10373 | |
3b36f7e6 | 10374 | if (htab->got != NULL) |
25dbc73a | 10375 | { |
e79f5955 AM |
10376 | if (htab->elf.hgot->root.u.def.section == htab->got |
10377 | || htab->elf.hgot->root.u.def.section == htab->sgotplt) | |
e87d4038 | 10378 | { |
e79f5955 | 10379 | unsigned char *p = htab->elf.hgot->root.u.def.section->contents; |
2f89ff8d | 10380 | |
e87d4038 AM |
10381 | p += htab->elf.hgot->root.u.def.value; |
10382 | if (htab->plt_type == PLT_OLD) | |
e79f5955 AM |
10383 | { |
10384 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 | |
10385 | so that a function can easily find the address of | |
10386 | _GLOBAL_OFFSET_TABLE_. */ | |
10387 | BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 | |
10388 | < htab->elf.hgot->root.u.def.section->size); | |
10389 | bfd_put_32 (output_bfd, 0x4e800021, p - 4); | |
10390 | } | |
3b36f7e6 | 10391 | |
e87d4038 | 10392 | if (sdyn != NULL) |
e79f5955 AM |
10393 | { |
10394 | bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; | |
10395 | BFD_ASSERT (htab->elf.hgot->root.u.def.value | |
10396 | < htab->elf.hgot->root.u.def.section->size); | |
10397 | bfd_put_32 (output_bfd, val, p); | |
10398 | } | |
e87d4038 AM |
10399 | } |
10400 | else | |
10401 | { | |
8de848d8 | 10402 | info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"), |
25f53a85 AM |
10403 | htab->elf.hgot->root.root.string, |
10404 | (htab->sgotplt != NULL | |
10405 | ? htab->sgotplt->name : htab->got->name)); | |
e87d4038 AM |
10406 | bfd_set_error (bfd_error_bad_value); |
10407 | ret = FALSE; | |
10408 | } | |
25dbc73a AM |
10409 | |
10410 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; | |
10411 | } | |
10412 | ||
9d8504b1 PB |
10413 | /* Fill in the first entry in the VxWorks procedure linkage table. */ |
10414 | if (splt && splt->size > 0) | |
10415 | { | |
10416 | /* Use the right PLT. */ | |
0e1862bb | 10417 | const bfd_vma *plt_entry = (bfd_link_pic (info) |
5b914448 AM |
10418 | ? ppc_elf_vxworks_pic_plt0_entry |
10419 | : ppc_elf_vxworks_plt0_entry); | |
9d8504b1 | 10420 | |
0e1862bb | 10421 | if (!bfd_link_pic (info)) |
9d8504b1 | 10422 | { |
e87d4038 | 10423 | bfd_vma got_value = SYM_VAL (htab->elf.hgot); |
9d8504b1 | 10424 | |
e87d4038 | 10425 | bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), |
9d8504b1 | 10426 | splt->contents + 0); |
e87d4038 | 10427 | bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), |
9d8504b1 PB |
10428 | splt->contents + 4); |
10429 | } | |
10430 | else | |
10431 | { | |
10432 | bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); | |
10433 | bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); | |
10434 | } | |
10435 | bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); | |
10436 | bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); | |
10437 | bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); | |
10438 | bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); | |
10439 | bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); | |
10440 | bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); | |
10441 | ||
0e1862bb | 10442 | if (! bfd_link_pic (info)) |
9d8504b1 PB |
10443 | { |
10444 | Elf_Internal_Rela rela; | |
10445 | bfd_byte *loc; | |
10446 | ||
10447 | loc = htab->srelplt2->contents; | |
10448 | ||
10449 | /* Output the @ha relocation for the first instruction. */ | |
10450 | rela.r_offset = (htab->plt->output_section->vma | |
10451 | + htab->plt->output_offset | |
10452 | + 2); | |
636ce3f5 | 10453 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10454 | rela.r_addend = 0; |
10455 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10456 | loc += sizeof (Elf32_External_Rela); | |
5b914448 | 10457 | |
9d8504b1 PB |
10458 | /* Output the @l relocation for the second instruction. */ |
10459 | rela.r_offset = (htab->plt->output_section->vma | |
10460 | + htab->plt->output_offset | |
10461 | + 6); | |
636ce3f5 | 10462 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10463 | rela.r_addend = 0; |
10464 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
10465 | loc += sizeof (Elf32_External_Rela); | |
10466 | ||
10467 | /* Fix up the remaining relocations. They may have the wrong | |
10468 | symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
10469 | in which symbols were output. */ | |
10470 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
10471 | { | |
10472 | Elf_Internal_Rela rel; | |
10473 | ||
10474 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10475 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
10476 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10477 | loc += sizeof (Elf32_External_Rela); | |
10478 | ||
10479 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 10480 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
10481 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10482 | loc += sizeof (Elf32_External_Rela); | |
10483 | ||
10484 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
7325306f | 10485 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); |
9d8504b1 PB |
10486 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
10487 | loc += sizeof (Elf32_External_Rela); | |
10488 | } | |
10489 | } | |
10490 | } | |
10491 | ||
e054468f AM |
10492 | if (htab->glink != NULL |
10493 | && htab->glink->contents != NULL | |
10494 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
10495 | { |
10496 | unsigned char *p; | |
10497 | unsigned char *endp; | |
a6aa5195 | 10498 | bfd_vma res0; |
d7128ce4 | 10499 | unsigned int i; |
a6aa5195 AM |
10500 | |
10501 | /* | |
10502 | * PIC glink code is the following: | |
10503 | * | |
10504 | * # ith PLT code stub. | |
10505 | * addis 11,30,(plt+(i-1)*4-got)@ha | |
10506 | * lwz 11,(plt+(i-1)*4-got)@l(11) | |
10507 | * mtctr 11 | |
10508 | * bctr | |
10509 | * | |
10510 | * # A table of branches, one for each plt entry. | |
176a0d42 | 10511 | * # The idea is that the plt call stub loads ctr and r11 with these |
a6aa5195 AM |
10512 | * # addresses, so (r11 - res_0) gives the plt index * 4. |
10513 | * res_0: b PLTresolve | |
10514 | * res_1: b PLTresolve | |
10515 | * . | |
10516 | * # Some number of entries towards the end can be nops | |
10517 | * res_n_m3: nop | |
10518 | * res_n_m2: nop | |
10519 | * res_n_m1: | |
10520 | * | |
10521 | * PLTresolve: | |
10522 | * addis 11,11,(1f-res_0)@ha | |
10523 | * mflr 0 | |
10524 | * bcl 20,31,1f | |
10525 | * 1: addi 11,11,(1b-res_0)@l | |
10526 | * mflr 12 | |
10527 | * mtlr 0 | |
10528 | * sub 11,11,12 # r11 = index * 4 | |
10529 | * addis 12,12,(got+4-1b)@ha | |
10530 | * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve | |
10531 | * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address | |
10532 | * mtctr 0 | |
10533 | * add 0,11,11 | |
10534 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10535 | * bctr | |
10536 | */ | |
10537 | static const unsigned int pic_plt_resolve[] = | |
10538 | { | |
10539 | ADDIS_11_11, | |
10540 | MFLR_0, | |
10541 | BCL_20_31, | |
10542 | ADDI_11_11, | |
10543 | MFLR_12, | |
10544 | MTLR_0, | |
10545 | SUB_11_11_12, | |
10546 | ADDIS_12_12, | |
10547 | LWZ_0_12, | |
10548 | LWZ_12_12, | |
10549 | MTCTR_0, | |
10550 | ADD_0_11_11, | |
10551 | ADD_11_0_11, | |
10552 | BCTR, | |
10553 | NOP, | |
10554 | NOP | |
10555 | }; | |
10556 | ||
176a0d42 AM |
10557 | /* |
10558 | * Non-PIC glink code is a little simpler. | |
10559 | * | |
10560 | * # ith PLT code stub. | |
10561 | * lis 11,(plt+(i-1)*4)@ha | |
10562 | * lwz 11,(plt+(i-1)*4)@l(11) | |
10563 | * mtctr 11 | |
10564 | * bctr | |
10565 | * | |
10566 | * The branch table is the same, then comes | |
10567 | * | |
10568 | * PLTresolve: | |
10569 | * lis 12,(got+4)@ha | |
10570 | * addis 11,11,(-res_0)@ha | |
10571 | * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve | |
10572 | * addi 11,11,(-res_0)@l # r11 = index * 4 | |
10573 | * mtctr 0 | |
10574 | * add 0,11,11 | |
10575 | * lwz 12,(got+8)@l(12) # got[2] contains the map address | |
10576 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
10577 | * bctr | |
10578 | */ | |
d7128ce4 AM |
10579 | static const unsigned int plt_resolve[] = |
10580 | { | |
a6aa5195 AM |
10581 | LIS_12, |
10582 | ADDIS_11_11, | |
10583 | LWZ_0_12, | |
10584 | ADDI_11_11, | |
d7128ce4 | 10585 | MTCTR_0, |
7e8aeb9a | 10586 | ADD_0_11_11, |
a6aa5195 | 10587 | LWZ_12_12, |
7e8aeb9a | 10588 | ADD_11_0_11, |
d7128ce4 AM |
10589 | BCTR, |
10590 | NOP, | |
10591 | NOP, | |
a6aa5195 AM |
10592 | NOP, |
10593 | NOP, | |
10594 | NOP, | |
10595 | NOP, | |
d7128ce4 AM |
10596 | NOP |
10597 | }; | |
10598 | ||
a6aa5195 AM |
10599 | if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) |
10600 | abort (); | |
10601 | if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) | |
7e8aeb9a AM |
10602 | abort (); |
10603 | ||
a6aa5195 | 10604 | /* Build the branch table, one for each plt entry (less one), |
86b9da88 | 10605 | and perhaps some padding. */ |
a6aa5195 AM |
10606 | p = htab->glink->contents; |
10607 | p += htab->glink_pltresolve; | |
86b9da88 AM |
10608 | endp = htab->glink->contents; |
10609 | endp += htab->glink->size - GLINK_PLTRESOLVE; | |
da3a2088 | 10610 | while (p < endp - (htab->params->ppc476_workaround ? 0 : 8 * 4)) |
86b9da88 AM |
10611 | { |
10612 | bfd_put_32 (output_bfd, B + endp - p, p); | |
10613 | p += 4; | |
10614 | } | |
10615 | while (p < endp) | |
10616 | { | |
10617 | bfd_put_32 (output_bfd, NOP, p); | |
10618 | p += 4; | |
10619 | } | |
10620 | ||
7e8aeb9a | 10621 | res0 = (htab->glink_pltresolve |
86b9da88 AM |
10622 | + htab->glink->output_section->vma |
10623 | + htab->glink->output_offset); | |
10624 | ||
da3a2088 AM |
10625 | if (htab->params->ppc476_workaround) |
10626 | { | |
10627 | /* Ensure that a call stub at the end of a page doesn't | |
10628 | result in prefetch over the end of the page into the | |
10629 | glink branch table. */ | |
10630 | bfd_vma pagesize = (bfd_vma) 1 << htab->params->pagesize_p2; | |
10631 | bfd_vma page_addr; | |
10632 | bfd_vma glink_start = (htab->glink->output_section->vma | |
10633 | + htab->glink->output_offset); | |
10634 | ||
10635 | for (page_addr = res0 & -pagesize; | |
10636 | page_addr > glink_start; | |
10637 | page_addr -= pagesize) | |
10638 | { | |
10639 | /* We have a plt call stub that may need fixing. */ | |
10640 | bfd_byte *loc; | |
10641 | unsigned int insn; | |
10642 | ||
10643 | loc = htab->glink->contents + page_addr - 4 - glink_start; | |
10644 | insn = bfd_get_32 (output_bfd, loc); | |
10645 | if (insn == BCTR) | |
10646 | { | |
10647 | /* By alignment, we know that there must be at least | |
10648 | one other call stub before this one. */ | |
10649 | insn = bfd_get_32 (output_bfd, loc - 16); | |
10650 | if (insn == BCTR) | |
10651 | bfd_put_32 (output_bfd, B | (-16 & 0x3fffffc), loc); | |
10652 | else | |
10653 | bfd_put_32 (output_bfd, B | (-20 & 0x3fffffc), loc); | |
10654 | } | |
10655 | } | |
10656 | } | |
10657 | ||
86b9da88 | 10658 | /* Last comes the PLTresolve stub. */ |
0e1862bb | 10659 | if (bfd_link_pic (info)) |
7e8aeb9a | 10660 | { |
a6aa5195 | 10661 | bfd_vma bcl; |
d7128ce4 | 10662 | |
a6aa5195 | 10663 | for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) |
7e8aeb9a | 10664 | { |
da3a2088 AM |
10665 | unsigned int insn = pic_plt_resolve[i]; |
10666 | ||
10667 | if (htab->params->ppc476_workaround && insn == NOP) | |
10668 | insn = BA + 0; | |
10669 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10670 | p += 4; |
10671 | } | |
a6aa5195 AM |
10672 | p -= 4 * ARRAY_SIZE (pic_plt_resolve); |
10673 | ||
10674 | bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 | |
10675 | + htab->glink->output_section->vma | |
10676 | + htab->glink->output_offset); | |
10677 | ||
10678 | bfd_put_32 (output_bfd, | |
10679 | ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); | |
10680 | bfd_put_32 (output_bfd, | |
10681 | ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); | |
10682 | bfd_put_32 (output_bfd, | |
10683 | ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); | |
10684 | if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) | |
10685 | { | |
10686 | bfd_put_32 (output_bfd, | |
10687 | LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10688 | bfd_put_32 (output_bfd, | |
10689 | LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); | |
10690 | } | |
10691 | else | |
10692 | { | |
10693 | bfd_put_32 (output_bfd, | |
10694 | LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
10695 | bfd_put_32 (output_bfd, | |
10696 | LWZ_12_12 + 4, p + 9*4); | |
10697 | } | |
7e8aeb9a AM |
10698 | } |
10699 | else | |
d7128ce4 | 10700 | { |
a6aa5195 | 10701 | for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) |
7e8aeb9a | 10702 | { |
da3a2088 AM |
10703 | unsigned int insn = plt_resolve[i]; |
10704 | ||
10705 | if (htab->params->ppc476_workaround && insn == NOP) | |
10706 | insn = BA + 0; | |
10707 | bfd_put_32 (output_bfd, insn, p); | |
7e8aeb9a AM |
10708 | p += 4; |
10709 | } | |
a6aa5195 AM |
10710 | p -= 4 * ARRAY_SIZE (plt_resolve); |
10711 | ||
10712 | bfd_put_32 (output_bfd, | |
10713 | LIS_12 + PPC_HA (got + 4), p + 0*4); | |
10714 | bfd_put_32 (output_bfd, | |
10715 | ADDIS_11_11 + PPC_HA (-res0), p + 1*4); | |
10716 | bfd_put_32 (output_bfd, | |
10717 | ADDI_11_11 + PPC_LO (-res0), p + 3*4); | |
10718 | if (PPC_HA (got + 4) == PPC_HA (got + 8)) | |
10719 | { | |
10720 | bfd_put_32 (output_bfd, | |
10721 | LWZ_0_12 + PPC_LO (got + 4), p + 2*4); | |
10722 | bfd_put_32 (output_bfd, | |
10723 | LWZ_12_12 + PPC_LO (got + 8), p + 6*4); | |
10724 | } | |
10725 | else | |
10726 | { | |
10727 | bfd_put_32 (output_bfd, | |
10728 | LWZU_0_12 + PPC_LO (got + 4), p + 2*4); | |
10729 | bfd_put_32 (output_bfd, | |
10730 | LWZ_12_12 + 4, p + 6*4); | |
10731 | } | |
d7128ce4 | 10732 | } |
d7128ce4 AM |
10733 | } |
10734 | ||
6177242a AM |
10735 | if (htab->glink_eh_frame != NULL |
10736 | && htab->glink_eh_frame->contents != NULL) | |
10737 | { | |
10738 | unsigned char *p = htab->glink_eh_frame->contents; | |
10739 | bfd_vma val; | |
10740 | ||
6177242a AM |
10741 | p += sizeof (glink_eh_frame_cie); |
10742 | /* FDE length. */ | |
6177242a AM |
10743 | p += 4; |
10744 | /* CIE pointer. */ | |
6177242a AM |
10745 | p += 4; |
10746 | /* Offset to .glink. */ | |
10747 | val = (htab->glink->output_section->vma | |
10748 | + htab->glink->output_offset); | |
10749 | val -= (htab->glink_eh_frame->output_section->vma | |
10750 | + htab->glink_eh_frame->output_offset); | |
10751 | val -= p - htab->glink_eh_frame->contents; | |
10752 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6177242a | 10753 | |
dbaa2011 | 10754 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
6177242a AM |
10755 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
10756 | htab->glink_eh_frame, | |
10757 | htab->glink_eh_frame->contents)) | |
10758 | return FALSE; | |
10759 | } | |
10760 | ||
e87d4038 | 10761 | return ret; |
25dbc73a | 10762 | } |
e1a9cb8e | 10763 | \f |
6d00b590 | 10764 | #define TARGET_LITTLE_SYM powerpc_elf32_le_vec |
252b5132 | 10765 | #define TARGET_LITTLE_NAME "elf32-powerpcle" |
6d00b590 | 10766 | #define TARGET_BIG_SYM powerpc_elf32_vec |
252b5132 RH |
10767 | #define TARGET_BIG_NAME "elf32-powerpc" |
10768 | #define ELF_ARCH bfd_arch_powerpc | |
ae95ffa6 | 10769 | #define ELF_TARGET_ID PPC32_ELF_DATA |
252b5132 | 10770 | #define ELF_MACHINE_CODE EM_PPC |
d0facd1b NC |
10771 | #ifdef __QNXTARGET__ |
10772 | #define ELF_MAXPAGESIZE 0x1000 | |
04c6a44c | 10773 | #define ELF_COMMONPAGESIZE 0x1000 |
d0facd1b | 10774 | #else |
252b5132 | 10775 | #define ELF_MAXPAGESIZE 0x10000 |
04c6a44c | 10776 | #define ELF_COMMONPAGESIZE 0x10000 |
d0facd1b | 10777 | #endif |
b1342370 | 10778 | #define ELF_MINPAGESIZE 0x1000 |
252b5132 RH |
10779 | #define elf_info_to_howto ppc_elf_info_to_howto |
10780 | ||
10781 | #ifdef EM_CYGNUS_POWERPC | |
10782 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
10783 | #endif | |
10784 | ||
10785 | #ifdef EM_PPC_OLD | |
10786 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
10787 | #endif | |
10788 | ||
10789 | #define elf_backend_plt_not_loaded 1 | |
252b5132 | 10790 | #define elf_backend_can_gc_sections 1 |
51b64d56 | 10791 | #define elf_backend_can_refcount 1 |
b491616a | 10792 | #define elf_backend_rela_normal 1 |
53291d1f | 10793 | #define elf_backend_caches_rawsize 1 |
252b5132 | 10794 | |
43c40ab2 | 10795 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 10796 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 10797 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 | 10798 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
b9c361e0 | 10799 | #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup |
252b5132 | 10800 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
70bccea4 | 10801 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
468392fb | 10802 | #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab |
252b5132 | 10803 | |
feee612b | 10804 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
10805 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
10806 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
10807 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
10808 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
10809 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
10810 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 10811 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
10812 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
10813 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
10814 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
0eb4a168 | 10815 | #define elf_backend_hash_symbol ppc_elf_hash_symbol |
252b5132 RH |
10816 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
10817 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
10818 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
10819 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
b9c361e0 | 10820 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map |
c5fccbec DJ |
10821 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
10822 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
183e98be | 10823 | #define elf_backend_write_core_note ppc_elf_write_core_note |
29c2fb7c | 10824 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
10825 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
10826 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
10827 | #define elf_backend_write_section ppc_elf_write_section | |
551b43fd | 10828 | #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr |
4c45e5c9 | 10829 | #define elf_backend_plt_sym_val ppc_elf_plt_sym_val |
8a696751 | 10830 | #define elf_backend_action_discarded ppc_elf_action_discarded |
74541ad4 | 10831 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
b9c361e0 | 10832 | #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags |
b9c361e0 | 10833 | #define elf_backend_section_processing ppc_elf_section_processing |
252b5132 RH |
10834 | |
10835 | #include "elf32-target.h" | |
9d8504b1 | 10836 | |
7b8e7dad AM |
10837 | /* FreeBSD Target */ |
10838 | ||
10839 | #undef TARGET_LITTLE_SYM | |
10840 | #undef TARGET_LITTLE_NAME | |
10841 | ||
10842 | #undef TARGET_BIG_SYM | |
6d00b590 | 10843 | #define TARGET_BIG_SYM powerpc_elf32_fbsd_vec |
7b8e7dad AM |
10844 | #undef TARGET_BIG_NAME |
10845 | #define TARGET_BIG_NAME "elf32-powerpc-freebsd" | |
10846 | ||
10847 | #undef ELF_OSABI | |
10848 | #define ELF_OSABI ELFOSABI_FREEBSD | |
10849 | ||
10850 | #undef elf32_bed | |
10851 | #define elf32_bed elf32_powerpc_fbsd_bed | |
10852 | ||
10853 | #include "elf32-target.h" | |
10854 | ||
9d8504b1 PB |
10855 | /* VxWorks Target */ |
10856 | ||
10857 | #undef TARGET_LITTLE_SYM | |
10858 | #undef TARGET_LITTLE_NAME | |
10859 | ||
10860 | #undef TARGET_BIG_SYM | |
6d00b590 | 10861 | #define TARGET_BIG_SYM powerpc_elf32_vxworks_vec |
9d8504b1 PB |
10862 | #undef TARGET_BIG_NAME |
10863 | #define TARGET_BIG_NAME "elf32-powerpc-vxworks" | |
10864 | ||
7b8e7dad AM |
10865 | #undef ELF_OSABI |
10866 | ||
d5e3d971 PB |
10867 | /* VxWorks uses the elf default section flags for .plt. */ |
10868 | static const struct bfd_elf_special_section * | |
10869 | ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
9d8504b1 | 10870 | { |
d5e3d971 PB |
10871 | if (sec->name == NULL) |
10872 | return NULL; | |
10873 | ||
10874 | if (strcmp (sec->name, ".plt") == 0) | |
10875 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
10876 | ||
10877 | return ppc_elf_get_sec_type_attr (abfd, sec); | |
10878 | } | |
9d8504b1 PB |
10879 | |
10880 | /* Like ppc_elf_link_hash_table_create, but overrides | |
10881 | appropriately for VxWorks. */ | |
10882 | static struct bfd_link_hash_table * | |
10883 | ppc_elf_vxworks_link_hash_table_create (bfd *abfd) | |
10884 | { | |
10885 | struct bfd_link_hash_table *ret; | |
10886 | ||
10887 | ret = ppc_elf_link_hash_table_create (abfd); | |
10888 | if (ret) | |
10889 | { | |
10890 | struct ppc_elf_link_hash_table *htab | |
10891 | = (struct ppc_elf_link_hash_table *)ret; | |
10892 | htab->is_vxworks = 1; | |
4a3dc543 | 10893 | htab->plt_type = PLT_VXWORKS; |
9d8504b1 PB |
10894 | htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; |
10895 | htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; | |
10896 | htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; | |
10897 | } | |
10898 | return ret; | |
10899 | } | |
10900 | ||
10901 | /* Tweak magic VxWorks symbols as they are loaded. */ | |
10902 | static bfd_boolean | |
10903 | ppc_elf_vxworks_add_symbol_hook (bfd *abfd, | |
10904 | struct bfd_link_info *info, | |
10905 | Elf_Internal_Sym *sym, | |
10906 | const char **namep ATTRIBUTE_UNUSED, | |
10907 | flagword *flagsp ATTRIBUTE_UNUSED, | |
10908 | asection **secp, | |
10909 | bfd_vma *valp) | |
10910 | { | |
10911 | if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, | |
10912 | valp)) | |
10913 | return FALSE; | |
10914 | ||
10915 | return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); | |
10916 | } | |
10917 | ||
9d8504b1 PB |
10918 | static void |
10919 | ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
10920 | { | |
10921 | ppc_elf_final_write_processing(abfd, linker); | |
10922 | elf_vxworks_final_write_processing(abfd, linker); | |
10923 | } | |
10924 | ||
10925 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
10926 | define it. */ | |
10927 | #undef elf_backend_want_plt_sym | |
10928 | #define elf_backend_want_plt_sym 1 | |
10929 | #undef elf_backend_want_got_plt | |
10930 | #define elf_backend_want_got_plt 1 | |
10931 | #undef elf_backend_got_symbol_offset | |
10932 | #define elf_backend_got_symbol_offset 0 | |
10933 | #undef elf_backend_plt_not_loaded | |
10934 | #define elf_backend_plt_not_loaded 0 | |
10935 | #undef elf_backend_plt_readonly | |
10936 | #define elf_backend_plt_readonly 1 | |
10937 | #undef elf_backend_got_header_size | |
10938 | #define elf_backend_got_header_size 12 | |
10939 | ||
468392fb AM |
10940 | #undef bfd_elf32_get_synthetic_symtab |
10941 | ||
9d8504b1 PB |
10942 | #undef bfd_elf32_bfd_link_hash_table_create |
10943 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10944 | ppc_elf_vxworks_link_hash_table_create | |
9d8504b1 PB |
10945 | #undef elf_backend_add_symbol_hook |
10946 | #define elf_backend_add_symbol_hook \ | |
10947 | ppc_elf_vxworks_add_symbol_hook | |
10948 | #undef elf_backend_link_output_symbol_hook | |
10949 | #define elf_backend_link_output_symbol_hook \ | |
9c72ff84 | 10950 | elf_vxworks_link_output_symbol_hook |
9d8504b1 PB |
10951 | #undef elf_backend_final_write_processing |
10952 | #define elf_backend_final_write_processing \ | |
10953 | ppc_elf_vxworks_final_write_processing | |
d5e3d971 PB |
10954 | #undef elf_backend_get_sec_type_attr |
10955 | #define elf_backend_get_sec_type_attr \ | |
10956 | ppc_elf_vxworks_get_sec_type_attr | |
9d8504b1 PB |
10957 | #undef elf_backend_emit_relocs |
10958 | #define elf_backend_emit_relocs \ | |
10959 | elf_vxworks_emit_relocs | |
10960 | ||
10961 | #undef elf32_bed | |
10962 | #define elf32_bed ppc_elf_vxworks_bed | |
e054468f | 10963 | #undef elf_backend_post_process_headers |
9d8504b1 PB |
10964 | |
10965 | #include "elf32-target.h" |