Commit | Line | Data |
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252b5132 | 1 | /* PowerPC-specific support for 32-bit ELF |
051d5130 | 2 | Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
3a71aa26 | 3 | 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
252b5132 RH |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 11 | (at your option) any later version. |
252b5132 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
ae9a127f | 18 | You should have received a copy of the GNU General Public License |
fc0bffd6 | 19 | along with this program; if not, write to the |
3e110533 | 20 | Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
53e09e0a | 21 | Boston, MA 02110-1301, USA. */ |
252b5132 | 22 | |
cd123cb7 | 23 | |
252b5132 RH |
24 | /* This file is based on a preliminary PowerPC ELF ABI. The |
25 | information may not match the final PowerPC ELF ABI. It includes | |
26 | suggestions from the in-progress Embedded PowerPC ABI, and that | |
27 | information may also not match. */ | |
28 | ||
3db64b00 | 29 | #include "sysdep.h" |
183e98be | 30 | #include <stdarg.h> |
252b5132 | 31 | #include "bfd.h" |
252b5132 RH |
32 | #include "bfdlink.h" |
33 | #include "libbfd.h" | |
34 | #include "elf-bfd.h" | |
35 | #include "elf/ppc.h" | |
7619e7c7 | 36 | #include "elf32-ppc.h" |
9d8504b1 | 37 | #include "elf-vxworks.h" |
252b5132 | 38 | |
f0fe0e16 | 39 | /* RELA relocations are used here. */ |
252b5132 | 40 | |
252b5132 | 41 | static bfd_reloc_status_type ppc_elf_addr16_ha_reloc |
55fd94b0 | 42 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
7619e7c7 | 43 | static bfd_reloc_status_type ppc_elf_unhandled_reloc |
55fd94b0 | 44 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 45 | |
70bccea4 AM |
46 | /* Branch prediction bit for branch taken relocs. */ |
47 | #define BRANCH_PREDICT_BIT 0x200000 | |
48 | /* Mask to set RA in memory instructions. */ | |
49 | #define RA_REGISTER_MASK 0x001f0000 | |
50 | /* Value to shift register by to insert RA. */ | |
51 | #define RA_REGISTER_SHIFT 16 | |
252b5132 RH |
52 | |
53 | /* The name of the dynamic interpreter. This is put in the .interp | |
54 | section. */ | |
252b5132 RH |
55 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
56 | ||
d7128ce4 | 57 | /* For old-style PLT. */ |
252b5132 RH |
58 | /* The number of single-slot PLT entries (the rest use two slots). */ |
59 | #define PLT_NUM_SINGLE_ENTRIES 8192 | |
60 | ||
d7128ce4 | 61 | /* For new-style .glink and .plt. */ |
a6aa5195 | 62 | #define GLINK_PLTRESOLVE 16*4 |
d7128ce4 AM |
63 | #define GLINK_ENTRY_SIZE 4*4 |
64 | ||
9d8504b1 PB |
65 | /* VxWorks uses its own plt layout, filled in by the static linker. */ |
66 | ||
67 | /* The standard VxWorks PLT entry. */ | |
68 | #define VXWORKS_PLT_ENTRY_SIZE 32 | |
69 | static const bfd_vma ppc_elf_vxworks_plt_entry | |
70 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
71 | { | |
72 | 0x3d800000, /* lis r12,0 */ | |
73 | 0x818c0000, /* lwz r12,0(r12) */ | |
74 | 0x7d8903a6, /* mtctr r12 */ | |
75 | 0x4e800420, /* bctr */ | |
76 | 0x39600000, /* li r11,0 */ | |
77 | 0x48000000, /* b 14 <.PLT0resolve+0x4> */ | |
78 | 0x60000000, /* nop */ | |
79 | 0x60000000, /* nop */ | |
80 | }; | |
81 | static const bfd_vma ppc_elf_vxworks_pic_plt_entry | |
82 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
83 | { | |
84 | 0x3d9e0000, /* addis r12,r30,0 */ | |
85 | 0x818c0000, /* lwz r12,0(r12) */ | |
86 | 0x7d8903a6, /* mtctr r12 */ | |
87 | 0x4e800420, /* bctr */ | |
88 | 0x39600000, /* li r11,0 */ | |
89 | 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */ | |
90 | 0x60000000, /* nop */ | |
91 | 0x60000000, /* nop */ | |
92 | }; | |
93 | ||
94 | /* The initial VxWorks PLT entry. */ | |
95 | #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32 | |
96 | static const bfd_vma ppc_elf_vxworks_plt0_entry | |
97 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
98 | { | |
99 | 0x3d800000, /* lis r12,0 */ | |
100 | 0x398c0000, /* addi r12,r12,0 */ | |
101 | 0x800c0008, /* lwz r0,8(r12) */ | |
102 | 0x7c0903a6, /* mtctr r0 */ | |
103 | 0x818c0004, /* lwz r12,4(r12) */ | |
104 | 0x4e800420, /* bctr */ | |
105 | 0x60000000, /* nop */ | |
106 | 0x60000000, /* nop */ | |
107 | }; | |
108 | static const bfd_vma ppc_elf_vxworks_pic_plt0_entry | |
109 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
110 | { | |
111 | 0x819e0008, /* lwz r12,8(r30) */ | |
112 | 0x7d8903a6, /* mtctr r12 */ | |
113 | 0x819e0004, /* lwz r12,4(r30) */ | |
114 | 0x4e800420, /* bctr */ | |
115 | 0x60000000, /* nop */ | |
116 | 0x60000000, /* nop */ | |
117 | 0x60000000, /* nop */ | |
118 | 0x60000000, /* nop */ | |
119 | }; | |
120 | ||
121 | /* For executables, we have some additional relocations in | |
122 | .rela.plt.unloaded, for the kernel loader. */ | |
123 | ||
124 | /* The number of non-JMP_SLOT relocations per PLT0 slot. */ | |
125 | #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3 | |
126 | /* The number of relocations in the PLTResolve slot. */ | |
127 | #define VXWORKS_PLTRESOLVE_RELOCS 2 | |
128 | /* The number of relocations in the PLTResolve slot when when creating | |
129 | a shared library. */ | |
130 | #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0 | |
131 | ||
d7128ce4 | 132 | /* Some instructions. */ |
d7128ce4 | 133 | #define ADDIS_11_11 0x3d6b0000 |
a6aa5195 AM |
134 | #define ADDIS_11_30 0x3d7e0000 |
135 | #define ADDIS_12_12 0x3d8c0000 | |
d7128ce4 | 136 | #define ADDI_11_11 0x396b0000 |
d7128ce4 AM |
137 | #define ADD_0_11_11 0x7c0b5a14 |
138 | #define ADD_11_0_11 0x7d605a14 | |
a6aa5195 AM |
139 | #define B 0x48000000 |
140 | #define BCL_20_31 0x429f0005 | |
d7128ce4 | 141 | #define BCTR 0x4e800420 |
7e8aeb9a AM |
142 | #define LIS_11 0x3d600000 |
143 | #define LIS_12 0x3d800000 | |
a6aa5195 AM |
144 | #define LWZU_0_12 0x840c0000 |
145 | #define LWZ_0_12 0x800c0000 | |
146 | #define LWZ_11_11 0x816b0000 | |
147 | #define LWZ_11_30 0x817e0000 | |
148 | #define LWZ_12_12 0x818c0000 | |
149 | #define MFLR_0 0x7c0802a6 | |
150 | #define MFLR_12 0x7d8802a6 | |
151 | #define MTCTR_0 0x7c0903a6 | |
152 | #define MTCTR_11 0x7d6903a6 | |
153 | #define MTLR_0 0x7c0803a6 | |
154 | #define NOP 0x60000000 | |
155 | #define SUB_11_11_12 0x7d6c5850 | |
7619e7c7 AM |
156 | |
157 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
158 | #define TP_OFFSET 0x7000 | |
159 | #define DTP_OFFSET 0x8000 | |
e87d4038 AM |
160 | |
161 | /* The value of a defined global symbol. */ | |
162 | #define SYM_VAL(SYM) \ | |
163 | ((SYM)->root.u.def.section->output_section->vma \ | |
164 | + (SYM)->root.u.def.section->output_offset \ | |
165 | + (SYM)->root.u.def.value) | |
7fce784e | 166 | \f |
e47cd125 | 167 | static reloc_howto_type *ppc_elf_howto_table[R_PPC_max]; |
252b5132 | 168 | |
8da6118f | 169 | static reloc_howto_type ppc_elf_howto_raw[] = { |
252b5132 RH |
170 | /* This reloc does nothing. */ |
171 | HOWTO (R_PPC_NONE, /* type */ | |
172 | 0, /* rightshift */ | |
173 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
174 | 32, /* bitsize */ | |
b34976b6 | 175 | FALSE, /* pc_relative */ |
252b5132 RH |
176 | 0, /* bitpos */ |
177 | complain_overflow_bitfield, /* complain_on_overflow */ | |
178 | bfd_elf_generic_reloc, /* special_function */ | |
179 | "R_PPC_NONE", /* name */ | |
b34976b6 | 180 | FALSE, /* partial_inplace */ |
252b5132 RH |
181 | 0, /* src_mask */ |
182 | 0, /* dst_mask */ | |
b34976b6 | 183 | FALSE), /* pcrel_offset */ |
252b5132 RH |
184 | |
185 | /* A standard 32 bit relocation. */ | |
186 | HOWTO (R_PPC_ADDR32, /* type */ | |
187 | 0, /* rightshift */ | |
188 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
189 | 32, /* bitsize */ | |
b34976b6 | 190 | FALSE, /* pc_relative */ |
252b5132 RH |
191 | 0, /* bitpos */ |
192 | complain_overflow_bitfield, /* complain_on_overflow */ | |
193 | bfd_elf_generic_reloc, /* special_function */ | |
194 | "R_PPC_ADDR32", /* name */ | |
b34976b6 | 195 | FALSE, /* partial_inplace */ |
252b5132 RH |
196 | 0, /* src_mask */ |
197 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 198 | FALSE), /* pcrel_offset */ |
252b5132 RH |
199 | |
200 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
201 | FIXME: we don't check that, we just clear them. */ | |
202 | HOWTO (R_PPC_ADDR24, /* type */ | |
203 | 0, /* rightshift */ | |
204 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
205 | 26, /* bitsize */ | |
b34976b6 | 206 | FALSE, /* pc_relative */ |
252b5132 RH |
207 | 0, /* bitpos */ |
208 | complain_overflow_bitfield, /* complain_on_overflow */ | |
209 | bfd_elf_generic_reloc, /* special_function */ | |
210 | "R_PPC_ADDR24", /* name */ | |
b34976b6 | 211 | FALSE, /* partial_inplace */ |
252b5132 RH |
212 | 0, /* src_mask */ |
213 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 214 | FALSE), /* pcrel_offset */ |
252b5132 RH |
215 | |
216 | /* A standard 16 bit relocation. */ | |
217 | HOWTO (R_PPC_ADDR16, /* type */ | |
218 | 0, /* rightshift */ | |
219 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
220 | 16, /* bitsize */ | |
b34976b6 | 221 | FALSE, /* pc_relative */ |
252b5132 RH |
222 | 0, /* bitpos */ |
223 | complain_overflow_bitfield, /* complain_on_overflow */ | |
224 | bfd_elf_generic_reloc, /* special_function */ | |
225 | "R_PPC_ADDR16", /* name */ | |
b34976b6 | 226 | FALSE, /* partial_inplace */ |
252b5132 RH |
227 | 0, /* src_mask */ |
228 | 0xffff, /* dst_mask */ | |
b34976b6 | 229 | FALSE), /* pcrel_offset */ |
252b5132 RH |
230 | |
231 | /* A 16 bit relocation without overflow. */ | |
232 | HOWTO (R_PPC_ADDR16_LO, /* type */ | |
233 | 0, /* rightshift */ | |
234 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
235 | 16, /* bitsize */ | |
b34976b6 | 236 | FALSE, /* pc_relative */ |
252b5132 RH |
237 | 0, /* bitpos */ |
238 | complain_overflow_dont,/* complain_on_overflow */ | |
239 | bfd_elf_generic_reloc, /* special_function */ | |
240 | "R_PPC_ADDR16_LO", /* name */ | |
b34976b6 | 241 | FALSE, /* partial_inplace */ |
252b5132 RH |
242 | 0, /* src_mask */ |
243 | 0xffff, /* dst_mask */ | |
b34976b6 | 244 | FALSE), /* pcrel_offset */ |
252b5132 RH |
245 | |
246 | /* The high order 16 bits of an address. */ | |
247 | HOWTO (R_PPC_ADDR16_HI, /* type */ | |
248 | 16, /* rightshift */ | |
249 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 16, /* bitsize */ | |
b34976b6 | 251 | FALSE, /* pc_relative */ |
252b5132 RH |
252 | 0, /* bitpos */ |
253 | complain_overflow_dont, /* complain_on_overflow */ | |
254 | bfd_elf_generic_reloc, /* special_function */ | |
255 | "R_PPC_ADDR16_HI", /* name */ | |
b34976b6 | 256 | FALSE, /* partial_inplace */ |
252b5132 RH |
257 | 0, /* src_mask */ |
258 | 0xffff, /* dst_mask */ | |
b34976b6 | 259 | FALSE), /* pcrel_offset */ |
252b5132 RH |
260 | |
261 | /* The high order 16 bits of an address, plus 1 if the contents of | |
8da6118f | 262 | the low 16 bits, treated as a signed number, is negative. */ |
252b5132 RH |
263 | HOWTO (R_PPC_ADDR16_HA, /* 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 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
271 | "R_PPC_ADDR16_HA", /* 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 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
278 | FIXME: we don't check that, we just clear them. */ | |
279 | HOWTO (R_PPC_ADDR14, /* type */ | |
280 | 0, /* rightshift */ | |
281 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
282 | 16, /* bitsize */ | |
b34976b6 | 283 | FALSE, /* pc_relative */ |
252b5132 RH |
284 | 0, /* bitpos */ |
285 | complain_overflow_bitfield, /* complain_on_overflow */ | |
286 | bfd_elf_generic_reloc, /* special_function */ | |
287 | "R_PPC_ADDR14", /* name */ | |
b34976b6 | 288 | FALSE, /* partial_inplace */ |
252b5132 RH |
289 | 0, /* src_mask */ |
290 | 0xfffc, /* dst_mask */ | |
b34976b6 | 291 | FALSE), /* pcrel_offset */ |
252b5132 RH |
292 | |
293 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
294 | indicate that the branch is expected to be taken. The lower two | |
8da6118f | 295 | bits must be zero. */ |
252b5132 RH |
296 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
297 | 0, /* rightshift */ | |
298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
299 | 16, /* bitsize */ | |
b34976b6 | 300 | FALSE, /* pc_relative */ |
252b5132 RH |
301 | 0, /* bitpos */ |
302 | complain_overflow_bitfield, /* complain_on_overflow */ | |
303 | bfd_elf_generic_reloc, /* special_function */ | |
304 | "R_PPC_ADDR14_BRTAKEN",/* name */ | |
b34976b6 | 305 | FALSE, /* partial_inplace */ |
252b5132 RH |
306 | 0, /* src_mask */ |
307 | 0xfffc, /* dst_mask */ | |
b34976b6 | 308 | FALSE), /* pcrel_offset */ |
252b5132 RH |
309 | |
310 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
311 | indicate that the branch is not expected to be taken. The lower | |
312 | two bits must be zero. */ | |
313 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ | |
314 | 0, /* rightshift */ | |
315 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
316 | 16, /* bitsize */ | |
b34976b6 | 317 | FALSE, /* pc_relative */ |
252b5132 RH |
318 | 0, /* bitpos */ |
319 | complain_overflow_bitfield, /* complain_on_overflow */ | |
320 | bfd_elf_generic_reloc, /* special_function */ | |
321 | "R_PPC_ADDR14_BRNTAKEN",/* name */ | |
b34976b6 | 322 | FALSE, /* partial_inplace */ |
252b5132 RH |
323 | 0, /* src_mask */ |
324 | 0xfffc, /* dst_mask */ | |
b34976b6 | 325 | FALSE), /* pcrel_offset */ |
252b5132 | 326 | |
8da6118f | 327 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
328 | HOWTO (R_PPC_REL24, /* type */ |
329 | 0, /* rightshift */ | |
330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
331 | 26, /* bitsize */ | |
b34976b6 | 332 | TRUE, /* pc_relative */ |
252b5132 RH |
333 | 0, /* bitpos */ |
334 | complain_overflow_signed, /* complain_on_overflow */ | |
335 | bfd_elf_generic_reloc, /* special_function */ | |
336 | "R_PPC_REL24", /* name */ | |
b34976b6 | 337 | FALSE, /* partial_inplace */ |
252b5132 RH |
338 | 0, /* src_mask */ |
339 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 340 | TRUE), /* pcrel_offset */ |
252b5132 | 341 | |
8da6118f | 342 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
343 | HOWTO (R_PPC_REL14, /* type */ |
344 | 0, /* rightshift */ | |
345 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
346 | 16, /* bitsize */ | |
b34976b6 | 347 | TRUE, /* pc_relative */ |
252b5132 RH |
348 | 0, /* bitpos */ |
349 | complain_overflow_signed, /* complain_on_overflow */ | |
350 | bfd_elf_generic_reloc, /* special_function */ | |
351 | "R_PPC_REL14", /* name */ | |
b34976b6 | 352 | FALSE, /* partial_inplace */ |
252b5132 RH |
353 | 0, /* src_mask */ |
354 | 0xfffc, /* dst_mask */ | |
b34976b6 | 355 | TRUE), /* pcrel_offset */ |
252b5132 | 356 | |
8da6118f | 357 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
358 | the branch is expected to be taken. The lower two bits must be |
359 | zero. */ | |
360 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ | |
361 | 0, /* rightshift */ | |
362 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
363 | 16, /* bitsize */ | |
b34976b6 | 364 | TRUE, /* pc_relative */ |
252b5132 RH |
365 | 0, /* bitpos */ |
366 | complain_overflow_signed, /* complain_on_overflow */ | |
367 | bfd_elf_generic_reloc, /* special_function */ | |
368 | "R_PPC_REL14_BRTAKEN", /* name */ | |
b34976b6 | 369 | FALSE, /* partial_inplace */ |
252b5132 RH |
370 | 0, /* src_mask */ |
371 | 0xfffc, /* dst_mask */ | |
b34976b6 | 372 | TRUE), /* pcrel_offset */ |
252b5132 | 373 | |
8da6118f | 374 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
375 | the branch is not expected to be taken. The lower two bits must |
376 | be zero. */ | |
377 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ | |
378 | 0, /* rightshift */ | |
379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
380 | 16, /* bitsize */ | |
b34976b6 | 381 | TRUE, /* pc_relative */ |
252b5132 RH |
382 | 0, /* bitpos */ |
383 | complain_overflow_signed, /* complain_on_overflow */ | |
384 | bfd_elf_generic_reloc, /* special_function */ | |
385 | "R_PPC_REL14_BRNTAKEN",/* name */ | |
b34976b6 | 386 | FALSE, /* partial_inplace */ |
252b5132 RH |
387 | 0, /* src_mask */ |
388 | 0xfffc, /* dst_mask */ | |
b34976b6 | 389 | TRUE), /* pcrel_offset */ |
252b5132 RH |
390 | |
391 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the | |
392 | symbol. */ | |
393 | HOWTO (R_PPC_GOT16, /* type */ | |
394 | 0, /* rightshift */ | |
395 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
396 | 16, /* bitsize */ | |
b34976b6 | 397 | FALSE, /* pc_relative */ |
252b5132 RH |
398 | 0, /* bitpos */ |
399 | complain_overflow_signed, /* complain_on_overflow */ | |
400 | bfd_elf_generic_reloc, /* special_function */ | |
401 | "R_PPC_GOT16", /* name */ | |
b34976b6 | 402 | FALSE, /* partial_inplace */ |
252b5132 RH |
403 | 0, /* src_mask */ |
404 | 0xffff, /* dst_mask */ | |
b34976b6 | 405 | FALSE), /* pcrel_offset */ |
252b5132 RH |
406 | |
407 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for | |
408 | the symbol. */ | |
409 | HOWTO (R_PPC_GOT16_LO, /* 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_dont, /* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_PPC_GOT16_LO", /* 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_HI, but referring to the GOT table entry for | |
424 | the symbol. */ | |
425 | HOWTO (R_PPC_GOT16_HI, /* type */ | |
426 | 16, /* 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_bitfield, /* complain_on_overflow */ | |
432 | bfd_elf_generic_reloc, /* special_function */ | |
433 | "R_PPC_GOT16_HI", /* 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_HA, but referring to the GOT table entry for | |
440 | the symbol. */ | |
441 | HOWTO (R_PPC_GOT16_HA, /* type */ | |
442 | 16, /* rightshift */ | |
443 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
444 | 16, /* bitsize */ | |
b34976b6 | 445 | FALSE, /* pc_relative */ |
252b5132 RH |
446 | 0, /* bitpos */ |
447 | complain_overflow_bitfield, /* complain_on_overflow */ | |
448 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
449 | "R_PPC_GOT16_HA", /* 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_REL24, but referring to the procedure linkage table | |
456 | entry for the symbol. */ | |
457 | HOWTO (R_PPC_PLTREL24, /* type */ | |
458 | 0, /* rightshift */ | |
459 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
460 | 26, /* bitsize */ | |
b34976b6 | 461 | TRUE, /* pc_relative */ |
252b5132 RH |
462 | 0, /* bitpos */ |
463 | complain_overflow_signed, /* complain_on_overflow */ | |
464 | bfd_elf_generic_reloc, /* special_function */ | |
465 | "R_PPC_PLTREL24", /* name */ | |
b34976b6 | 466 | FALSE, /* partial_inplace */ |
252b5132 RH |
467 | 0, /* src_mask */ |
468 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 469 | TRUE), /* pcrel_offset */ |
252b5132 RH |
470 | |
471 | /* This is used only by the dynamic linker. The symbol should exist | |
472 | both in the object being run and in some shared library. The | |
473 | dynamic linker copies the data addressed by the symbol from the | |
474 | shared library into the object, because the object being | |
475 | run has to have the data at some particular address. */ | |
476 | HOWTO (R_PPC_COPY, /* type */ | |
477 | 0, /* rightshift */ | |
478 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
479 | 32, /* bitsize */ | |
b34976b6 | 480 | FALSE, /* pc_relative */ |
252b5132 RH |
481 | 0, /* bitpos */ |
482 | complain_overflow_bitfield, /* complain_on_overflow */ | |
483 | bfd_elf_generic_reloc, /* special_function */ | |
484 | "R_PPC_COPY", /* name */ | |
b34976b6 | 485 | FALSE, /* partial_inplace */ |
252b5132 RH |
486 | 0, /* src_mask */ |
487 | 0, /* dst_mask */ | |
b34976b6 | 488 | FALSE), /* pcrel_offset */ |
252b5132 RH |
489 | |
490 | /* Like R_PPC_ADDR32, but used when setting global offset table | |
491 | entries. */ | |
492 | HOWTO (R_PPC_GLOB_DAT, /* type */ | |
493 | 0, /* rightshift */ | |
494 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
495 | 32, /* bitsize */ | |
b34976b6 | 496 | FALSE, /* pc_relative */ |
252b5132 RH |
497 | 0, /* bitpos */ |
498 | complain_overflow_bitfield, /* complain_on_overflow */ | |
499 | bfd_elf_generic_reloc, /* special_function */ | |
500 | "R_PPC_GLOB_DAT", /* name */ | |
b34976b6 | 501 | FALSE, /* partial_inplace */ |
252b5132 RH |
502 | 0, /* src_mask */ |
503 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 504 | FALSE), /* pcrel_offset */ |
252b5132 RH |
505 | |
506 | /* Marks a procedure linkage table entry for a symbol. */ | |
507 | HOWTO (R_PPC_JMP_SLOT, /* type */ | |
508 | 0, /* rightshift */ | |
509 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
510 | 32, /* bitsize */ | |
b34976b6 | 511 | FALSE, /* pc_relative */ |
252b5132 RH |
512 | 0, /* bitpos */ |
513 | complain_overflow_bitfield, /* complain_on_overflow */ | |
514 | bfd_elf_generic_reloc, /* special_function */ | |
515 | "R_PPC_JMP_SLOT", /* name */ | |
b34976b6 | 516 | FALSE, /* partial_inplace */ |
252b5132 RH |
517 | 0, /* src_mask */ |
518 | 0, /* dst_mask */ | |
b34976b6 | 519 | FALSE), /* pcrel_offset */ |
252b5132 RH |
520 | |
521 | /* Used only by the dynamic linker. When the object is run, this | |
522 | longword is set to the load address of the object, plus the | |
523 | addend. */ | |
524 | HOWTO (R_PPC_RELATIVE, /* type */ | |
525 | 0, /* rightshift */ | |
526 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
527 | 32, /* bitsize */ | |
b34976b6 | 528 | FALSE, /* pc_relative */ |
252b5132 RH |
529 | 0, /* bitpos */ |
530 | complain_overflow_bitfield, /* complain_on_overflow */ | |
531 | bfd_elf_generic_reloc, /* special_function */ | |
532 | "R_PPC_RELATIVE", /* name */ | |
b34976b6 | 533 | FALSE, /* partial_inplace */ |
252b5132 RH |
534 | 0, /* src_mask */ |
535 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 536 | FALSE), /* pcrel_offset */ |
252b5132 RH |
537 | |
538 | /* Like R_PPC_REL24, but uses the value of the symbol within the | |
539 | object rather than the final value. Normally used for | |
540 | _GLOBAL_OFFSET_TABLE_. */ | |
541 | HOWTO (R_PPC_LOCAL24PC, /* type */ | |
542 | 0, /* rightshift */ | |
543 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
544 | 26, /* bitsize */ | |
b34976b6 | 545 | TRUE, /* pc_relative */ |
252b5132 RH |
546 | 0, /* bitpos */ |
547 | complain_overflow_signed, /* complain_on_overflow */ | |
548 | bfd_elf_generic_reloc, /* special_function */ | |
549 | "R_PPC_LOCAL24PC", /* name */ | |
b34976b6 | 550 | FALSE, /* partial_inplace */ |
252b5132 RH |
551 | 0, /* src_mask */ |
552 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 553 | TRUE), /* pcrel_offset */ |
252b5132 RH |
554 | |
555 | /* Like R_PPC_ADDR32, but may be unaligned. */ | |
556 | HOWTO (R_PPC_UADDR32, /* type */ | |
557 | 0, /* rightshift */ | |
558 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
559 | 32, /* bitsize */ | |
b34976b6 | 560 | FALSE, /* pc_relative */ |
252b5132 RH |
561 | 0, /* bitpos */ |
562 | complain_overflow_bitfield, /* complain_on_overflow */ | |
563 | bfd_elf_generic_reloc, /* special_function */ | |
564 | "R_PPC_UADDR32", /* name */ | |
b34976b6 | 565 | FALSE, /* partial_inplace */ |
252b5132 RH |
566 | 0, /* src_mask */ |
567 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 568 | FALSE), /* pcrel_offset */ |
252b5132 RH |
569 | |
570 | /* Like R_PPC_ADDR16, but may be unaligned. */ | |
571 | HOWTO (R_PPC_UADDR16, /* type */ | |
572 | 0, /* rightshift */ | |
573 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
574 | 16, /* bitsize */ | |
b34976b6 | 575 | FALSE, /* pc_relative */ |
252b5132 RH |
576 | 0, /* bitpos */ |
577 | complain_overflow_bitfield, /* complain_on_overflow */ | |
578 | bfd_elf_generic_reloc, /* special_function */ | |
579 | "R_PPC_UADDR16", /* name */ | |
b34976b6 | 580 | FALSE, /* partial_inplace */ |
252b5132 RH |
581 | 0, /* src_mask */ |
582 | 0xffff, /* dst_mask */ | |
b34976b6 | 583 | FALSE), /* pcrel_offset */ |
252b5132 RH |
584 | |
585 | /* 32-bit PC relative */ | |
586 | HOWTO (R_PPC_REL32, /* type */ | |
587 | 0, /* rightshift */ | |
588 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
589 | 32, /* bitsize */ | |
b34976b6 | 590 | TRUE, /* pc_relative */ |
252b5132 RH |
591 | 0, /* bitpos */ |
592 | complain_overflow_bitfield, /* complain_on_overflow */ | |
593 | bfd_elf_generic_reloc, /* special_function */ | |
594 | "R_PPC_REL32", /* name */ | |
b34976b6 | 595 | FALSE, /* partial_inplace */ |
252b5132 RH |
596 | 0, /* src_mask */ |
597 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 598 | TRUE), /* pcrel_offset */ |
252b5132 RH |
599 | |
600 | /* 32-bit relocation to the symbol's procedure linkage table. | |
c3668558 | 601 | FIXME: not supported. */ |
252b5132 RH |
602 | HOWTO (R_PPC_PLT32, /* type */ |
603 | 0, /* rightshift */ | |
604 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
605 | 32, /* bitsize */ | |
b34976b6 | 606 | FALSE, /* pc_relative */ |
252b5132 RH |
607 | 0, /* bitpos */ |
608 | complain_overflow_bitfield, /* complain_on_overflow */ | |
609 | bfd_elf_generic_reloc, /* special_function */ | |
610 | "R_PPC_PLT32", /* name */ | |
b34976b6 | 611 | FALSE, /* partial_inplace */ |
252b5132 RH |
612 | 0, /* src_mask */ |
613 | 0, /* dst_mask */ | |
b34976b6 | 614 | FALSE), /* pcrel_offset */ |
252b5132 RH |
615 | |
616 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
c3668558 | 617 | FIXME: not supported. */ |
252b5132 RH |
618 | HOWTO (R_PPC_PLTREL32, /* type */ |
619 | 0, /* rightshift */ | |
620 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
621 | 32, /* bitsize */ | |
b34976b6 | 622 | TRUE, /* pc_relative */ |
252b5132 RH |
623 | 0, /* bitpos */ |
624 | complain_overflow_bitfield, /* complain_on_overflow */ | |
625 | bfd_elf_generic_reloc, /* special_function */ | |
626 | "R_PPC_PLTREL32", /* name */ | |
b34976b6 | 627 | FALSE, /* partial_inplace */ |
252b5132 RH |
628 | 0, /* src_mask */ |
629 | 0, /* dst_mask */ | |
b34976b6 | 630 | TRUE), /* pcrel_offset */ |
252b5132 RH |
631 | |
632 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for | |
633 | the symbol. */ | |
634 | HOWTO (R_PPC_PLT16_LO, /* type */ | |
635 | 0, /* rightshift */ | |
636 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
637 | 16, /* bitsize */ | |
b34976b6 | 638 | FALSE, /* pc_relative */ |
252b5132 RH |
639 | 0, /* bitpos */ |
640 | complain_overflow_dont, /* complain_on_overflow */ | |
641 | bfd_elf_generic_reloc, /* special_function */ | |
642 | "R_PPC_PLT16_LO", /* name */ | |
b34976b6 | 643 | FALSE, /* partial_inplace */ |
252b5132 RH |
644 | 0, /* src_mask */ |
645 | 0xffff, /* dst_mask */ | |
b34976b6 | 646 | FALSE), /* pcrel_offset */ |
252b5132 RH |
647 | |
648 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for | |
649 | the symbol. */ | |
650 | HOWTO (R_PPC_PLT16_HI, /* type */ | |
651 | 16, /* 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_bitfield, /* complain_on_overflow */ | |
657 | bfd_elf_generic_reloc, /* special_function */ | |
658 | "R_PPC_PLT16_HI", /* 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_HA, but referring to the PLT table entry for | |
665 | the symbol. */ | |
666 | HOWTO (R_PPC_PLT16_HA, /* type */ | |
667 | 16, /* rightshift */ | |
668 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
669 | 16, /* bitsize */ | |
b34976b6 | 670 | FALSE, /* pc_relative */ |
252b5132 RH |
671 | 0, /* bitpos */ |
672 | complain_overflow_bitfield, /* complain_on_overflow */ | |
673 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
674 | "R_PPC_PLT16_HA", /* 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 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with | |
681 | small data items. */ | |
682 | HOWTO (R_PPC_SDAREL16, /* type */ | |
683 | 0, /* rightshift */ | |
684 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
685 | 16, /* bitsize */ | |
b34976b6 | 686 | FALSE, /* pc_relative */ |
252b5132 RH |
687 | 0, /* bitpos */ |
688 | complain_overflow_signed, /* complain_on_overflow */ | |
689 | bfd_elf_generic_reloc, /* special_function */ | |
690 | "R_PPC_SDAREL16", /* name */ | |
b34976b6 | 691 | FALSE, /* partial_inplace */ |
252b5132 RH |
692 | 0, /* src_mask */ |
693 | 0xffff, /* dst_mask */ | |
b34976b6 | 694 | FALSE), /* pcrel_offset */ |
252b5132 | 695 | |
c061c2d8 | 696 | /* 16-bit section relative relocation. */ |
252b5132 RH |
697 | HOWTO (R_PPC_SECTOFF, /* type */ |
698 | 0, /* rightshift */ | |
c061c2d8 AM |
699 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
700 | 16, /* bitsize */ | |
b34976b6 | 701 | FALSE, /* pc_relative */ |
252b5132 RH |
702 | 0, /* bitpos */ |
703 | complain_overflow_bitfield, /* complain_on_overflow */ | |
704 | bfd_elf_generic_reloc, /* special_function */ | |
705 | "R_PPC_SECTOFF", /* name */ | |
b34976b6 | 706 | FALSE, /* partial_inplace */ |
252b5132 | 707 | 0, /* src_mask */ |
c061c2d8 | 708 | 0xffff, /* dst_mask */ |
b34976b6 | 709 | FALSE), /* pcrel_offset */ |
252b5132 | 710 | |
c3668558 | 711 | /* 16-bit lower half section relative relocation. */ |
252b5132 RH |
712 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
713 | 0, /* rightshift */ | |
714 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
715 | 16, /* bitsize */ | |
b34976b6 | 716 | FALSE, /* pc_relative */ |
252b5132 RH |
717 | 0, /* bitpos */ |
718 | complain_overflow_dont, /* complain_on_overflow */ | |
719 | bfd_elf_generic_reloc, /* special_function */ | |
720 | "R_PPC_SECTOFF_LO", /* name */ | |
b34976b6 | 721 | FALSE, /* partial_inplace */ |
252b5132 RH |
722 | 0, /* src_mask */ |
723 | 0xffff, /* dst_mask */ | |
b34976b6 | 724 | FALSE), /* pcrel_offset */ |
252b5132 | 725 | |
c3668558 | 726 | /* 16-bit upper half section relative relocation. */ |
252b5132 RH |
727 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
728 | 16, /* rightshift */ | |
729 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
730 | 16, /* bitsize */ | |
b34976b6 | 731 | FALSE, /* pc_relative */ |
252b5132 RH |
732 | 0, /* bitpos */ |
733 | complain_overflow_bitfield, /* complain_on_overflow */ | |
734 | bfd_elf_generic_reloc, /* special_function */ | |
735 | "R_PPC_SECTOFF_HI", /* name */ | |
b34976b6 | 736 | FALSE, /* partial_inplace */ |
252b5132 RH |
737 | 0, /* src_mask */ |
738 | 0xffff, /* dst_mask */ | |
b34976b6 | 739 | FALSE), /* pcrel_offset */ |
252b5132 | 740 | |
c3668558 | 741 | /* 16-bit upper half adjusted section relative relocation. */ |
252b5132 RH |
742 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
743 | 16, /* rightshift */ | |
744 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
745 | 16, /* bitsize */ | |
b34976b6 | 746 | FALSE, /* pc_relative */ |
252b5132 RH |
747 | 0, /* bitpos */ |
748 | complain_overflow_bitfield, /* complain_on_overflow */ | |
749 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
750 | "R_PPC_SECTOFF_HA", /* name */ | |
b34976b6 | 751 | FALSE, /* partial_inplace */ |
252b5132 RH |
752 | 0, /* src_mask */ |
753 | 0xffff, /* dst_mask */ | |
b34976b6 | 754 | FALSE), /* pcrel_offset */ |
252b5132 | 755 | |
727fc41e | 756 | /* Marker relocs for TLS. */ |
7619e7c7 | 757 | HOWTO (R_PPC_TLS, |
252b5132 RH |
758 | 0, /* rightshift */ |
759 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
760 | 32, /* bitsize */ | |
b34976b6 | 761 | FALSE, /* pc_relative */ |
252b5132 | 762 | 0, /* bitpos */ |
7619e7c7 | 763 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 | 764 | bfd_elf_generic_reloc, /* special_function */ |
7619e7c7 AM |
765 | "R_PPC_TLS", /* name */ |
766 | FALSE, /* partial_inplace */ | |
767 | 0, /* src_mask */ | |
768 | 0, /* dst_mask */ | |
769 | FALSE), /* pcrel_offset */ | |
770 | ||
727fc41e AM |
771 | HOWTO (R_PPC_TLSGD, |
772 | 0, /* rightshift */ | |
773 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
774 | 32, /* bitsize */ | |
775 | FALSE, /* pc_relative */ | |
776 | 0, /* bitpos */ | |
777 | complain_overflow_dont, /* complain_on_overflow */ | |
778 | bfd_elf_generic_reloc, /* special_function */ | |
779 | "R_PPC_TLSGD", /* name */ | |
780 | FALSE, /* partial_inplace */ | |
781 | 0, /* src_mask */ | |
782 | 0, /* dst_mask */ | |
783 | FALSE), /* pcrel_offset */ | |
784 | ||
785 | HOWTO (R_PPC_TLSLD, | |
786 | 0, /* rightshift */ | |
787 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
788 | 32, /* bitsize */ | |
789 | FALSE, /* pc_relative */ | |
790 | 0, /* bitpos */ | |
791 | complain_overflow_dont, /* complain_on_overflow */ | |
792 | bfd_elf_generic_reloc, /* special_function */ | |
793 | "R_PPC_TLSLD", /* name */ | |
794 | FALSE, /* partial_inplace */ | |
795 | 0, /* src_mask */ | |
796 | 0, /* dst_mask */ | |
797 | FALSE), /* pcrel_offset */ | |
798 | ||
7619e7c7 AM |
799 | /* Computes the load module index of the load module that contains the |
800 | definition of its TLS sym. */ | |
801 | HOWTO (R_PPC_DTPMOD32, | |
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 | ppc_elf_unhandled_reloc, /* special_function */ | |
809 | "R_PPC_DTPMOD32", /* name */ | |
b34976b6 | 810 | FALSE, /* partial_inplace */ |
252b5132 RH |
811 | 0, /* src_mask */ |
812 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 813 | FALSE), /* pcrel_offset */ |
252b5132 | 814 | |
7619e7c7 AM |
815 | /* Computes a dtv-relative displacement, the difference between the value |
816 | of sym+add and the base address of the thread-local storage block that | |
817 | contains the definition of sym, minus 0x8000. */ | |
818 | HOWTO (R_PPC_DTPREL32, | |
819 | 0, /* rightshift */ | |
820 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
821 | 32, /* bitsize */ | |
822 | FALSE, /* pc_relative */ | |
823 | 0, /* bitpos */ | |
824 | complain_overflow_dont, /* complain_on_overflow */ | |
825 | ppc_elf_unhandled_reloc, /* special_function */ | |
826 | "R_PPC_DTPREL32", /* name */ | |
827 | FALSE, /* partial_inplace */ | |
828 | 0, /* src_mask */ | |
829 | 0xffffffff, /* dst_mask */ | |
830 | FALSE), /* pcrel_offset */ | |
831 | ||
832 | /* A 16 bit dtprel reloc. */ | |
833 | HOWTO (R_PPC_DTPREL16, | |
252b5132 RH |
834 | 0, /* rightshift */ |
835 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
836 | 16, /* bitsize */ | |
b34976b6 | 837 | FALSE, /* pc_relative */ |
252b5132 | 838 | 0, /* bitpos */ |
7619e7c7 AM |
839 | complain_overflow_signed, /* complain_on_overflow */ |
840 | ppc_elf_unhandled_reloc, /* special_function */ | |
841 | "R_PPC_DTPREL16", /* name */ | |
b34976b6 | 842 | FALSE, /* partial_inplace */ |
252b5132 RH |
843 | 0, /* src_mask */ |
844 | 0xffff, /* dst_mask */ | |
b34976b6 | 845 | FALSE), /* pcrel_offset */ |
252b5132 | 846 | |
7619e7c7 AM |
847 | /* Like DTPREL16, but no overflow. */ |
848 | HOWTO (R_PPC_DTPREL16_LO, | |
252b5132 RH |
849 | 0, /* rightshift */ |
850 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
851 | 16, /* bitsize */ | |
b34976b6 | 852 | FALSE, /* pc_relative */ |
252b5132 | 853 | 0, /* bitpos */ |
7619e7c7 AM |
854 | complain_overflow_dont, /* complain_on_overflow */ |
855 | ppc_elf_unhandled_reloc, /* special_function */ | |
856 | "R_PPC_DTPREL16_LO", /* name */ | |
b34976b6 | 857 | FALSE, /* partial_inplace */ |
252b5132 RH |
858 | 0, /* src_mask */ |
859 | 0xffff, /* dst_mask */ | |
b34976b6 | 860 | FALSE), /* pcrel_offset */ |
252b5132 | 861 | |
7619e7c7 AM |
862 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ |
863 | HOWTO (R_PPC_DTPREL16_HI, | |
252b5132 RH |
864 | 16, /* rightshift */ |
865 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
866 | 16, /* bitsize */ | |
b34976b6 | 867 | FALSE, /* pc_relative */ |
252b5132 RH |
868 | 0, /* bitpos */ |
869 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
870 | ppc_elf_unhandled_reloc, /* special_function */ |
871 | "R_PPC_DTPREL16_HI", /* name */ | |
b34976b6 | 872 | FALSE, /* partial_inplace */ |
252b5132 RH |
873 | 0, /* src_mask */ |
874 | 0xffff, /* dst_mask */ | |
b34976b6 | 875 | FALSE), /* pcrel_offset */ |
252b5132 | 876 | |
7619e7c7 AM |
877 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ |
878 | HOWTO (R_PPC_DTPREL16_HA, | |
252b5132 RH |
879 | 16, /* rightshift */ |
880 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
881 | 16, /* bitsize */ | |
b34976b6 | 882 | FALSE, /* pc_relative */ |
252b5132 RH |
883 | 0, /* bitpos */ |
884 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
885 | ppc_elf_unhandled_reloc, /* special_function */ |
886 | "R_PPC_DTPREL16_HA", /* name */ | |
b34976b6 | 887 | FALSE, /* partial_inplace */ |
252b5132 RH |
888 | 0, /* src_mask */ |
889 | 0xffff, /* dst_mask */ | |
b34976b6 | 890 | FALSE), /* pcrel_offset */ |
252b5132 | 891 | |
7619e7c7 AM |
892 | /* Computes a tp-relative displacement, the difference between the value of |
893 | sym+add and the value of the thread pointer (r13). */ | |
894 | HOWTO (R_PPC_TPREL32, | |
895 | 0, /* rightshift */ | |
896 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
897 | 32, /* bitsize */ | |
898 | FALSE, /* pc_relative */ | |
899 | 0, /* bitpos */ | |
900 | complain_overflow_dont, /* complain_on_overflow */ | |
901 | ppc_elf_unhandled_reloc, /* special_function */ | |
902 | "R_PPC_TPREL32", /* name */ | |
903 | FALSE, /* partial_inplace */ | |
904 | 0, /* src_mask */ | |
905 | 0xffffffff, /* dst_mask */ | |
906 | FALSE), /* pcrel_offset */ | |
907 | ||
908 | /* A 16 bit tprel reloc. */ | |
909 | HOWTO (R_PPC_TPREL16, | |
252b5132 RH |
910 | 0, /* rightshift */ |
911 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
912 | 16, /* bitsize */ | |
b34976b6 | 913 | FALSE, /* pc_relative */ |
252b5132 | 914 | 0, /* bitpos */ |
7619e7c7 AM |
915 | complain_overflow_signed, /* complain_on_overflow */ |
916 | ppc_elf_unhandled_reloc, /* special_function */ | |
917 | "R_PPC_TPREL16", /* name */ | |
b34976b6 | 918 | FALSE, /* partial_inplace */ |
252b5132 RH |
919 | 0, /* src_mask */ |
920 | 0xffff, /* dst_mask */ | |
b34976b6 | 921 | FALSE), /* pcrel_offset */ |
252b5132 | 922 | |
7619e7c7 AM |
923 | /* Like TPREL16, but no overflow. */ |
924 | HOWTO (R_PPC_TPREL16_LO, | |
252b5132 RH |
925 | 0, /* rightshift */ |
926 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
927 | 16, /* bitsize */ | |
b34976b6 | 928 | FALSE, /* pc_relative */ |
252b5132 | 929 | 0, /* bitpos */ |
7619e7c7 AM |
930 | complain_overflow_dont, /* complain_on_overflow */ |
931 | ppc_elf_unhandled_reloc, /* special_function */ | |
932 | "R_PPC_TPREL16_LO", /* name */ | |
b34976b6 | 933 | FALSE, /* partial_inplace */ |
252b5132 RH |
934 | 0, /* src_mask */ |
935 | 0xffff, /* dst_mask */ | |
b34976b6 | 936 | FALSE), /* pcrel_offset */ |
252b5132 | 937 | |
7619e7c7 AM |
938 | /* Like TPREL16_LO, but next higher group of 16 bits. */ |
939 | HOWTO (R_PPC_TPREL16_HI, | |
940 | 16, /* rightshift */ | |
941 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
942 | 16, /* bitsize */ | |
943 | FALSE, /* pc_relative */ | |
944 | 0, /* bitpos */ | |
945 | complain_overflow_dont, /* complain_on_overflow */ | |
946 | ppc_elf_unhandled_reloc, /* special_function */ | |
947 | "R_PPC_TPREL16_HI", /* name */ | |
948 | FALSE, /* partial_inplace */ | |
949 | 0, /* src_mask */ | |
950 | 0xffff, /* dst_mask */ | |
951 | FALSE), /* pcrel_offset */ | |
952 | ||
953 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
954 | HOWTO (R_PPC_TPREL16_HA, | |
955 | 16, /* rightshift */ | |
956 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
957 | 16, /* bitsize */ | |
958 | FALSE, /* pc_relative */ | |
959 | 0, /* bitpos */ | |
960 | complain_overflow_dont, /* complain_on_overflow */ | |
961 | ppc_elf_unhandled_reloc, /* special_function */ | |
962 | "R_PPC_TPREL16_HA", /* name */ | |
963 | FALSE, /* partial_inplace */ | |
964 | 0, /* src_mask */ | |
965 | 0xffff, /* dst_mask */ | |
966 | FALSE), /* pcrel_offset */ | |
967 | ||
968 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
969 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
970 | to the first entry. */ | |
971 | HOWTO (R_PPC_GOT_TLSGD16, | |
252b5132 RH |
972 | 0, /* rightshift */ |
973 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
974 | 16, /* bitsize */ | |
b34976b6 | 975 | FALSE, /* pc_relative */ |
252b5132 RH |
976 | 0, /* bitpos */ |
977 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
978 | ppc_elf_unhandled_reloc, /* special_function */ |
979 | "R_PPC_GOT_TLSGD16", /* name */ | |
b34976b6 | 980 | FALSE, /* partial_inplace */ |
252b5132 RH |
981 | 0, /* src_mask */ |
982 | 0xffff, /* dst_mask */ | |
b34976b6 | 983 | FALSE), /* pcrel_offset */ |
252b5132 | 984 | |
7619e7c7 AM |
985 | /* Like GOT_TLSGD16, but no overflow. */ |
986 | HOWTO (R_PPC_GOT_TLSGD16_LO, | |
252b5132 | 987 | 0, /* rightshift */ |
7619e7c7 | 988 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 989 | 16, /* bitsize */ |
b34976b6 | 990 | FALSE, /* pc_relative */ |
252b5132 | 991 | 0, /* bitpos */ |
7619e7c7 AM |
992 | complain_overflow_dont, /* complain_on_overflow */ |
993 | ppc_elf_unhandled_reloc, /* special_function */ | |
994 | "R_PPC_GOT_TLSGD16_LO", /* name */ | |
b34976b6 | 995 | FALSE, /* partial_inplace */ |
252b5132 RH |
996 | 0, /* src_mask */ |
997 | 0xffff, /* dst_mask */ | |
b34976b6 | 998 | FALSE), /* pcrel_offset */ |
252b5132 | 999 | |
7619e7c7 AM |
1000 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1001 | HOWTO (R_PPC_GOT_TLSGD16_HI, | |
1002 | 16, /* rightshift */ | |
1003 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1004 | 16, /* bitsize */ | |
1005 | FALSE, /* pc_relative */ | |
1006 | 0, /* bitpos */ | |
1007 | complain_overflow_dont, /* complain_on_overflow */ | |
1008 | ppc_elf_unhandled_reloc, /* special_function */ | |
1009 | "R_PPC_GOT_TLSGD16_HI", /* name */ | |
1010 | FALSE, /* partial_inplace */ | |
1011 | 0, /* src_mask */ | |
1012 | 0xffff, /* dst_mask */ | |
1013 | FALSE), /* pcrel_offset */ | |
252b5132 | 1014 | |
7619e7c7 AM |
1015 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1016 | HOWTO (R_PPC_GOT_TLSGD16_HA, | |
1017 | 16, /* rightshift */ | |
1018 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1019 | 16, /* bitsize */ | |
1020 | FALSE, /* pc_relative */ | |
1021 | 0, /* bitpos */ | |
1022 | complain_overflow_dont, /* complain_on_overflow */ | |
1023 | ppc_elf_unhandled_reloc, /* special_function */ | |
1024 | "R_PPC_GOT_TLSGD16_HA", /* name */ | |
1025 | FALSE, /* partial_inplace */ | |
1026 | 0, /* src_mask */ | |
1027 | 0xffff, /* dst_mask */ | |
1028 | FALSE), /* pcrel_offset */ | |
1029 | ||
1030 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1031 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1032 | first entry. */ | |
1033 | HOWTO (R_PPC_GOT_TLSLD16, | |
252b5132 RH |
1034 | 0, /* rightshift */ |
1035 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1036 | 16, /* bitsize */ | |
7619e7c7 | 1037 | FALSE, /* pc_relative */ |
252b5132 RH |
1038 | 0, /* bitpos */ |
1039 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1040 | ppc_elf_unhandled_reloc, /* special_function */ |
1041 | "R_PPC_GOT_TLSLD16", /* name */ | |
b34976b6 | 1042 | FALSE, /* partial_inplace */ |
252b5132 RH |
1043 | 0, /* src_mask */ |
1044 | 0xffff, /* dst_mask */ | |
b34976b6 | 1045 | FALSE), /* pcrel_offset */ |
252b5132 | 1046 | |
7619e7c7 AM |
1047 | /* Like GOT_TLSLD16, but no overflow. */ |
1048 | HOWTO (R_PPC_GOT_TLSLD16_LO, | |
252b5132 | 1049 | 0, /* rightshift */ |
7619e7c7 AM |
1050 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1051 | 16, /* bitsize */ | |
b34976b6 | 1052 | FALSE, /* pc_relative */ |
252b5132 RH |
1053 | 0, /* bitpos */ |
1054 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1055 | ppc_elf_unhandled_reloc, /* special_function */ |
1056 | "R_PPC_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1057 | FALSE, /* partial_inplace */ |
252b5132 | 1058 | 0, /* src_mask */ |
7619e7c7 | 1059 | 0xffff, /* dst_mask */ |
b34976b6 | 1060 | FALSE), /* pcrel_offset */ |
252b5132 | 1061 | |
7619e7c7 AM |
1062 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1063 | HOWTO (R_PPC_GOT_TLSLD16_HI, | |
1064 | 16, /* rightshift */ | |
1065 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1066 | 16, /* bitsize */ | |
b34976b6 | 1067 | FALSE, /* pc_relative */ |
252b5132 RH |
1068 | 0, /* bitpos */ |
1069 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1070 | ppc_elf_unhandled_reloc, /* special_function */ |
1071 | "R_PPC_GOT_TLSLD16_HI", /* name */ | |
b34976b6 | 1072 | FALSE, /* partial_inplace */ |
252b5132 | 1073 | 0, /* src_mask */ |
7619e7c7 | 1074 | 0xffff, /* dst_mask */ |
b34976b6 | 1075 | FALSE), /* pcrel_offset */ |
252b5132 | 1076 | |
7619e7c7 AM |
1077 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1078 | HOWTO (R_PPC_GOT_TLSLD16_HA, | |
1079 | 16, /* rightshift */ | |
1080 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1081 | 16, /* bitsize */ | |
1082 | FALSE, /* pc_relative */ | |
1083 | 0, /* bitpos */ | |
1084 | complain_overflow_dont, /* complain_on_overflow */ | |
1085 | ppc_elf_unhandled_reloc, /* special_function */ | |
1086 | "R_PPC_GOT_TLSLD16_HA", /* name */ | |
1087 | FALSE, /* partial_inplace */ | |
1088 | 0, /* src_mask */ | |
1089 | 0xffff, /* dst_mask */ | |
1090 | FALSE), /* pcrel_offset */ | |
1091 | ||
1092 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes | |
1093 | the offset to the entry. */ | |
1094 | HOWTO (R_PPC_GOT_DTPREL16, | |
252b5132 RH |
1095 | 0, /* rightshift */ |
1096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1097 | 16, /* bitsize */ | |
b34976b6 | 1098 | FALSE, /* pc_relative */ |
252b5132 RH |
1099 | 0, /* bitpos */ |
1100 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1101 | ppc_elf_unhandled_reloc, /* special_function */ |
1102 | "R_PPC_GOT_DTPREL16", /* name */ | |
b34976b6 | 1103 | FALSE, /* partial_inplace */ |
252b5132 RH |
1104 | 0, /* src_mask */ |
1105 | 0xffff, /* dst_mask */ | |
b34976b6 | 1106 | FALSE), /* pcrel_offset */ |
252b5132 | 1107 | |
7619e7c7 AM |
1108 | /* Like GOT_DTPREL16, but no overflow. */ |
1109 | HOWTO (R_PPC_GOT_DTPREL16_LO, | |
1110 | 0, /* rightshift */ | |
1111 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1112 | 16, /* bitsize */ | |
1113 | FALSE, /* pc_relative */ | |
1114 | 0, /* bitpos */ | |
1115 | complain_overflow_dont, /* complain_on_overflow */ | |
1116 | ppc_elf_unhandled_reloc, /* special_function */ | |
1117 | "R_PPC_GOT_DTPREL16_LO", /* name */ | |
1118 | FALSE, /* partial_inplace */ | |
1119 | 0, /* src_mask */ | |
1120 | 0xffff, /* dst_mask */ | |
1121 | FALSE), /* pcrel_offset */ | |
252b5132 | 1122 | |
7619e7c7 AM |
1123 | /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ |
1124 | HOWTO (R_PPC_GOT_DTPREL16_HI, | |
1125 | 16, /* rightshift */ | |
1126 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1127 | 16, /* bitsize */ | |
1128 | FALSE, /* pc_relative */ | |
1129 | 0, /* bitpos */ | |
1130 | complain_overflow_dont, /* complain_on_overflow */ | |
1131 | ppc_elf_unhandled_reloc, /* special_function */ | |
1132 | "R_PPC_GOT_DTPREL16_HI", /* name */ | |
1133 | FALSE, /* partial_inplace */ | |
1134 | 0, /* src_mask */ | |
1135 | 0xffff, /* dst_mask */ | |
1136 | FALSE), /* pcrel_offset */ | |
252b5132 | 1137 | |
7619e7c7 AM |
1138 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1139 | HOWTO (R_PPC_GOT_DTPREL16_HA, | |
1140 | 16, /* rightshift */ | |
1141 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1142 | 16, /* bitsize */ | |
1143 | FALSE, /* pc_relative */ | |
1144 | 0, /* bitpos */ | |
1145 | complain_overflow_dont, /* complain_on_overflow */ | |
1146 | ppc_elf_unhandled_reloc, /* special_function */ | |
1147 | "R_PPC_GOT_DTPREL16_HA", /* name */ | |
1148 | FALSE, /* partial_inplace */ | |
1149 | 0, /* src_mask */ | |
1150 | 0xffff, /* dst_mask */ | |
1151 | FALSE), /* pcrel_offset */ | |
c3668558 | 1152 | |
7619e7c7 AM |
1153 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the |
1154 | offset to the entry. */ | |
1155 | HOWTO (R_PPC_GOT_TPREL16, | |
1156 | 0, /* rightshift */ | |
1157 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1158 | 16, /* bitsize */ | |
1159 | FALSE, /* pc_relative */ | |
1160 | 0, /* bitpos */ | |
1161 | complain_overflow_signed, /* complain_on_overflow */ | |
1162 | ppc_elf_unhandled_reloc, /* special_function */ | |
1163 | "R_PPC_GOT_TPREL16", /* name */ | |
1164 | FALSE, /* partial_inplace */ | |
1165 | 0, /* src_mask */ | |
1166 | 0xffff, /* dst_mask */ | |
1167 | FALSE), /* pcrel_offset */ | |
1168 | ||
1169 | /* Like GOT_TPREL16, but no overflow. */ | |
1170 | HOWTO (R_PPC_GOT_TPREL16_LO, | |
1171 | 0, /* rightshift */ | |
1172 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1173 | 16, /* bitsize */ | |
1174 | FALSE, /* pc_relative */ | |
1175 | 0, /* bitpos */ | |
1176 | complain_overflow_dont, /* complain_on_overflow */ | |
1177 | ppc_elf_unhandled_reloc, /* special_function */ | |
1178 | "R_PPC_GOT_TPREL16_LO", /* name */ | |
1179 | FALSE, /* partial_inplace */ | |
1180 | 0, /* src_mask */ | |
1181 | 0xffff, /* dst_mask */ | |
1182 | FALSE), /* pcrel_offset */ | |
1183 | ||
1184 | /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ | |
1185 | HOWTO (R_PPC_GOT_TPREL16_HI, | |
1186 | 16, /* rightshift */ | |
1187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1188 | 16, /* bitsize */ | |
1189 | FALSE, /* pc_relative */ | |
1190 | 0, /* bitpos */ | |
1191 | complain_overflow_dont, /* complain_on_overflow */ | |
1192 | ppc_elf_unhandled_reloc, /* special_function */ | |
1193 | "R_PPC_GOT_TPREL16_HI", /* name */ | |
1194 | FALSE, /* partial_inplace */ | |
1195 | 0, /* src_mask */ | |
1196 | 0xffff, /* dst_mask */ | |
1197 | FALSE), /* pcrel_offset */ | |
1198 | ||
1199 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ | |
1200 | HOWTO (R_PPC_GOT_TPREL16_HA, | |
1201 | 16, /* rightshift */ | |
1202 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1203 | 16, /* bitsize */ | |
1204 | FALSE, /* pc_relative */ | |
1205 | 0, /* bitpos */ | |
1206 | complain_overflow_dont, /* complain_on_overflow */ | |
1207 | ppc_elf_unhandled_reloc, /* special_function */ | |
1208 | "R_PPC_GOT_TPREL16_HA", /* name */ | |
1209 | FALSE, /* partial_inplace */ | |
1210 | 0, /* src_mask */ | |
1211 | 0xffff, /* dst_mask */ | |
1212 | FALSE), /* pcrel_offset */ | |
1213 | ||
1214 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
1215 | in the SVR4 ELF ABI. */ | |
1216 | ||
1217 | /* 32 bit value resulting from the addend minus the symbol. */ | |
1218 | HOWTO (R_PPC_EMB_NADDR32, /* type */ | |
1219 | 0, /* rightshift */ | |
1220 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1221 | 32, /* bitsize */ | |
1222 | FALSE, /* pc_relative */ | |
1223 | 0, /* bitpos */ | |
1224 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1225 | bfd_elf_generic_reloc, /* special_function */ | |
1226 | "R_PPC_EMB_NADDR32", /* name */ | |
1227 | FALSE, /* partial_inplace */ | |
1228 | 0, /* src_mask */ | |
1229 | 0xffffffff, /* dst_mask */ | |
1230 | FALSE), /* pcrel_offset */ | |
1231 | ||
1232 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1233 | HOWTO (R_PPC_EMB_NADDR16, /* type */ | |
1234 | 0, /* rightshift */ | |
1235 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1236 | 16, /* bitsize */ | |
1237 | FALSE, /* pc_relative */ | |
1238 | 0, /* bitpos */ | |
1239 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1240 | bfd_elf_generic_reloc, /* special_function */ | |
1241 | "R_PPC_EMB_NADDR16", /* name */ | |
1242 | FALSE, /* partial_inplace */ | |
1243 | 0, /* src_mask */ | |
1244 | 0xffff, /* dst_mask */ | |
1245 | FALSE), /* pcrel_offset */ | |
1246 | ||
1247 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1248 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ | |
1249 | 0, /* rightshift */ | |
1250 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1251 | 16, /* bitsize */ | |
1252 | FALSE, /* pc_relative */ | |
1253 | 0, /* bitpos */ | |
1254 | complain_overflow_dont,/* complain_on_overflow */ | |
1255 | bfd_elf_generic_reloc, /* special_function */ | |
1256 | "R_PPC_EMB_ADDR16_LO", /* name */ | |
1257 | FALSE, /* partial_inplace */ | |
1258 | 0, /* src_mask */ | |
1259 | 0xffff, /* dst_mask */ | |
1260 | FALSE), /* pcrel_offset */ | |
1261 | ||
1262 | /* The high order 16 bits of the addend minus the symbol. */ | |
1263 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ | |
1264 | 16, /* rightshift */ | |
1265 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1266 | 16, /* bitsize */ | |
1267 | FALSE, /* pc_relative */ | |
1268 | 0, /* bitpos */ | |
1269 | complain_overflow_dont, /* complain_on_overflow */ | |
1270 | bfd_elf_generic_reloc, /* special_function */ | |
1271 | "R_PPC_EMB_NADDR16_HI", /* name */ | |
1272 | FALSE, /* partial_inplace */ | |
1273 | 0, /* src_mask */ | |
1274 | 0xffff, /* dst_mask */ | |
1275 | FALSE), /* pcrel_offset */ | |
1276 | ||
1277 | /* The high order 16 bits of the result of the addend minus the address, | |
1278 | plus 1 if the contents of the low 16 bits, treated as a signed number, | |
1279 | is negative. */ | |
1280 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ | |
1281 | 16, /* rightshift */ | |
1282 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1283 | 16, /* bitsize */ | |
1284 | FALSE, /* pc_relative */ | |
1285 | 0, /* bitpos */ | |
1286 | complain_overflow_dont, /* complain_on_overflow */ | |
25dbc73a AM |
1287 | ppc_elf_addr16_ha_reloc, /* special_function */ |
1288 | "R_PPC_EMB_NADDR16_HA", /* name */ | |
1289 | FALSE, /* partial_inplace */ | |
1290 | 0, /* src_mask */ | |
1291 | 0xffff, /* dst_mask */ | |
1292 | FALSE), /* pcrel_offset */ | |
1293 | ||
1294 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1295 | address in the .sdata section, and returning the offset from | |
1296 | _SDA_BASE_ for that relocation. */ | |
1297 | HOWTO (R_PPC_EMB_SDAI16, /* type */ | |
1298 | 0, /* rightshift */ | |
1299 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1300 | 16, /* bitsize */ | |
1301 | FALSE, /* pc_relative */ | |
1302 | 0, /* bitpos */ | |
1303 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1304 | bfd_elf_generic_reloc, /* special_function */ | |
1305 | "R_PPC_EMB_SDAI16", /* name */ | |
1306 | FALSE, /* partial_inplace */ | |
1307 | 0, /* src_mask */ | |
1308 | 0xffff, /* dst_mask */ | |
1309 | FALSE), /* pcrel_offset */ | |
1310 | ||
1311 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1312 | address in the .sdata2 section, and returning the offset from | |
1313 | _SDA2_BASE_ for that relocation. */ | |
1314 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ | |
1315 | 0, /* rightshift */ | |
1316 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1317 | 16, /* bitsize */ | |
1318 | FALSE, /* pc_relative */ | |
1319 | 0, /* bitpos */ | |
1320 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1321 | bfd_elf_generic_reloc, /* special_function */ | |
1322 | "R_PPC_EMB_SDA2I16", /* name */ | |
1323 | FALSE, /* partial_inplace */ | |
1324 | 0, /* src_mask */ | |
1325 | 0xffff, /* dst_mask */ | |
1326 | FALSE), /* pcrel_offset */ | |
1327 | ||
1328 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with | |
1329 | small data items. */ | |
1330 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ | |
1331 | 0, /* rightshift */ | |
1332 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1333 | 16, /* bitsize */ | |
1334 | FALSE, /* pc_relative */ | |
1335 | 0, /* bitpos */ | |
1336 | complain_overflow_signed, /* complain_on_overflow */ | |
1337 | bfd_elf_generic_reloc, /* special_function */ | |
1338 | "R_PPC_EMB_SDA2REL", /* name */ | |
1339 | FALSE, /* partial_inplace */ | |
1340 | 0, /* src_mask */ | |
1341 | 0xffff, /* dst_mask */ | |
1342 | FALSE), /* pcrel_offset */ | |
1343 | ||
1344 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit | |
1345 | signed offset from the appropriate base, and filling in the register | |
1346 | field with the appropriate register (0, 2, or 13). */ | |
1347 | HOWTO (R_PPC_EMB_SDA21, /* type */ | |
1348 | 0, /* rightshift */ | |
1349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1350 | 16, /* bitsize */ | |
1351 | FALSE, /* pc_relative */ | |
1352 | 0, /* bitpos */ | |
1353 | complain_overflow_signed, /* complain_on_overflow */ | |
1354 | bfd_elf_generic_reloc, /* special_function */ | |
1355 | "R_PPC_EMB_SDA21", /* name */ | |
1356 | FALSE, /* partial_inplace */ | |
1357 | 0, /* src_mask */ | |
1358 | 0xffff, /* dst_mask */ | |
1359 | FALSE), /* pcrel_offset */ | |
1360 | ||
1361 | /* Relocation not handled: R_PPC_EMB_MRKREF */ | |
1362 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ | |
1363 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ | |
1364 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ | |
1365 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ | |
1366 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ | |
1367 | ||
1368 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling | |
1369 | in the 16 bit signed offset from the appropriate base, and filling in the | |
1370 | register field with the appropriate register (0, 2, or 13). */ | |
1371 | HOWTO (R_PPC_EMB_RELSDA, /* type */ | |
1372 | 0, /* rightshift */ | |
1373 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1374 | 16, /* bitsize */ | |
1375 | TRUE, /* pc_relative */ | |
1376 | 0, /* bitpos */ | |
1377 | complain_overflow_signed, /* complain_on_overflow */ | |
1378 | bfd_elf_generic_reloc, /* special_function */ | |
1379 | "R_PPC_EMB_RELSDA", /* name */ | |
1380 | FALSE, /* partial_inplace */ | |
1381 | 0, /* src_mask */ | |
1382 | 0xffff, /* dst_mask */ | |
1383 | FALSE), /* pcrel_offset */ | |
1384 | ||
d7128ce4 AM |
1385 | /* A 16 bit relative relocation. */ |
1386 | HOWTO (R_PPC_REL16, /* type */ | |
1387 | 0, /* rightshift */ | |
1388 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1389 | 16, /* bitsize */ | |
1390 | TRUE, /* pc_relative */ | |
1391 | 0, /* bitpos */ | |
1392 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1393 | bfd_elf_generic_reloc, /* special_function */ | |
1394 | "R_PPC_REL16", /* name */ | |
1395 | FALSE, /* partial_inplace */ | |
1396 | 0, /* src_mask */ | |
1397 | 0xffff, /* dst_mask */ | |
1398 | TRUE), /* pcrel_offset */ | |
1399 | ||
1400 | /* A 16 bit relative relocation without overflow. */ | |
1401 | HOWTO (R_PPC_REL16_LO, /* type */ | |
1402 | 0, /* rightshift */ | |
1403 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1404 | 16, /* bitsize */ | |
1405 | TRUE, /* pc_relative */ | |
1406 | 0, /* bitpos */ | |
1407 | complain_overflow_dont,/* complain_on_overflow */ | |
1408 | bfd_elf_generic_reloc, /* special_function */ | |
1409 | "R_PPC_REL16_LO", /* name */ | |
1410 | FALSE, /* partial_inplace */ | |
1411 | 0, /* src_mask */ | |
1412 | 0xffff, /* dst_mask */ | |
1413 | TRUE), /* pcrel_offset */ | |
1414 | ||
1415 | /* The high order 16 bits of a relative address. */ | |
1416 | HOWTO (R_PPC_REL16_HI, /* type */ | |
1417 | 16, /* rightshift */ | |
1418 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1419 | 16, /* bitsize */ | |
1420 | TRUE, /* pc_relative */ | |
1421 | 0, /* bitpos */ | |
1422 | complain_overflow_dont, /* complain_on_overflow */ | |
1423 | bfd_elf_generic_reloc, /* special_function */ | |
1424 | "R_PPC_REL16_HI", /* name */ | |
1425 | FALSE, /* partial_inplace */ | |
1426 | 0, /* src_mask */ | |
1427 | 0xffff, /* dst_mask */ | |
1428 | TRUE), /* pcrel_offset */ | |
1429 | ||
1430 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
1431 | the low 16 bits, treated as a signed number, is negative. */ | |
1432 | HOWTO (R_PPC_REL16_HA, /* type */ | |
1433 | 16, /* rightshift */ | |
1434 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1435 | 16, /* bitsize */ | |
1436 | TRUE, /* pc_relative */ | |
1437 | 0, /* bitpos */ | |
1438 | complain_overflow_dont, /* complain_on_overflow */ | |
1439 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1440 | "R_PPC_REL16_HA", /* name */ | |
1441 | FALSE, /* partial_inplace */ | |
1442 | 0, /* src_mask */ | |
1443 | 0xffff, /* dst_mask */ | |
1444 | TRUE), /* pcrel_offset */ | |
1445 | ||
25dbc73a AM |
1446 | /* GNU extension to record C++ vtable hierarchy. */ |
1447 | HOWTO (R_PPC_GNU_VTINHERIT, /* type */ | |
1448 | 0, /* rightshift */ | |
1449 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1450 | 0, /* bitsize */ | |
1451 | FALSE, /* pc_relative */ | |
1452 | 0, /* bitpos */ | |
1453 | complain_overflow_dont, /* complain_on_overflow */ | |
1454 | NULL, /* special_function */ | |
1455 | "R_PPC_GNU_VTINHERIT", /* name */ | |
1456 | FALSE, /* partial_inplace */ | |
1457 | 0, /* src_mask */ | |
1458 | 0, /* dst_mask */ | |
1459 | FALSE), /* pcrel_offset */ | |
1460 | ||
1461 | /* GNU extension to record C++ vtable member usage. */ | |
1462 | HOWTO (R_PPC_GNU_VTENTRY, /* type */ | |
1463 | 0, /* rightshift */ | |
1464 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1465 | 0, /* bitsize */ | |
1466 | FALSE, /* pc_relative */ | |
1467 | 0, /* bitpos */ | |
1468 | complain_overflow_dont, /* complain_on_overflow */ | |
1469 | NULL, /* special_function */ | |
1470 | "R_PPC_GNU_VTENTRY", /* name */ | |
7619e7c7 AM |
1471 | FALSE, /* partial_inplace */ |
1472 | 0, /* src_mask */ | |
25dbc73a | 1473 | 0, /* dst_mask */ |
7619e7c7 AM |
1474 | FALSE), /* pcrel_offset */ |
1475 | ||
25dbc73a AM |
1476 | /* Phony reloc to handle AIX style TOC entries. */ |
1477 | HOWTO (R_PPC_TOC16, /* type */ | |
7619e7c7 AM |
1478 | 0, /* rightshift */ |
1479 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1480 | 16, /* bitsize */ | |
1481 | FALSE, /* pc_relative */ | |
1482 | 0, /* bitpos */ | |
25dbc73a | 1483 | complain_overflow_signed, /* complain_on_overflow */ |
7619e7c7 | 1484 | bfd_elf_generic_reloc, /* special_function */ |
25dbc73a | 1485 | "R_PPC_TOC16", /* name */ |
7619e7c7 AM |
1486 | FALSE, /* partial_inplace */ |
1487 | 0, /* src_mask */ | |
1488 | 0xffff, /* dst_mask */ | |
1489 | FALSE), /* pcrel_offset */ | |
25dbc73a AM |
1490 | }; |
1491 | \f | |
1492 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1493 | ||
1494 | static void | |
1495 | ppc_elf_howto_init (void) | |
1496 | { | |
1497 | unsigned int i, type; | |
1498 | ||
1499 | for (i = 0; | |
1500 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1501 | i++) | |
1502 | { | |
1503 | type = ppc_elf_howto_raw[i].type; | |
1504 | if (type >= (sizeof (ppc_elf_howto_table) | |
1505 | / sizeof (ppc_elf_howto_table[0]))) | |
1506 | abort (); | |
1507 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; | |
1508 | } | |
1509 | } | |
1510 | ||
1511 | static reloc_howto_type * | |
1512 | ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1513 | bfd_reloc_code_real_type code) | |
1514 | { | |
1515 | enum elf_ppc_reloc_type r; | |
1516 | ||
1517 | /* Initialize howto table if not already done. */ | |
1518 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
1519 | ppc_elf_howto_init (); | |
1520 | ||
1521 | switch (code) | |
1522 | { | |
1523 | default: | |
1524 | return NULL; | |
1525 | ||
1526 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; | |
1527 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
1528 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
1529 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; | |
1530 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; | |
1531 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
1532 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
1533 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
1534 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
1535 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
1536 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
1537 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
1538 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
1539 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
1540 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; | |
1541 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; | |
1542 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
1543 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
1544 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
1545 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
1546 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
1547 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
1548 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
1549 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
1550 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
1551 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; | |
1552 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
1553 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
1554 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
1555 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; | |
1556 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; | |
1557 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
1558 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
1559 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
1560 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; | |
1561 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
727fc41e AM |
1562 | case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break; |
1563 | case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break; | |
25dbc73a AM |
1564 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; |
1565 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; | |
1566 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; | |
1567 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
1568 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
1569 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
1570 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; | |
1571 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; | |
1572 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
1573 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
1574 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
1575 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
1576 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
1577 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
1578 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
1579 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
1580 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
1581 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
1582 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
1583 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
1584 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
1585 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
1586 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
1587 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
1588 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
1589 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
1590 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
1591 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
1592 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
1593 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
1594 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
1595 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
1596 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
1597 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
1598 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
1599 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
1600 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
1601 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
1602 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
1603 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
1604 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
1605 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
1606 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
d7128ce4 AM |
1607 | case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break; |
1608 | case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break; | |
1609 | case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break; | |
1610 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break; | |
25dbc73a AM |
1611 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; |
1612 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
1613 | } | |
1614 | ||
1615 | return ppc_elf_howto_table[r]; | |
1616 | }; | |
1617 | ||
157090f7 AM |
1618 | static reloc_howto_type * |
1619 | ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1620 | const char *r_name) | |
1621 | { | |
1622 | unsigned int i; | |
1623 | ||
1624 | for (i = 0; | |
1625 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1626 | i++) | |
1627 | if (ppc_elf_howto_raw[i].name != NULL | |
1628 | && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0) | |
1629 | return &ppc_elf_howto_raw[i]; | |
1630 | ||
1631 | return NULL; | |
1632 | } | |
1633 | ||
25dbc73a AM |
1634 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
1635 | ||
1636 | static void | |
1637 | ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
1638 | arelent *cache_ptr, | |
1639 | Elf_Internal_Rela *dst) | |
1640 | { | |
1641 | /* Initialize howto table if not already done. */ | |
1642 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
1643 | ppc_elf_howto_init (); | |
1644 | ||
1645 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); | |
1646 | cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; | |
375de94a AM |
1647 | |
1648 | /* Just because the above assert didn't trigger doesn't mean that | |
1649 | ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */ | |
1650 | if (!cache_ptr->howto) | |
1651 | { | |
1652 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
1653 | abfd, ELF32_R_TYPE (dst->r_info)); | |
1654 | bfd_set_error (bfd_error_bad_value); | |
1655 | ||
1656 | cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE]; | |
1657 | } | |
25dbc73a AM |
1658 | } |
1659 | ||
d7128ce4 | 1660 | /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */ |
25dbc73a AM |
1661 | |
1662 | static bfd_reloc_status_type | |
1663 | ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
1664 | arelent *reloc_entry, | |
1665 | asymbol *symbol, | |
1666 | void *data ATTRIBUTE_UNUSED, | |
1667 | asection *input_section, | |
1668 | bfd *output_bfd, | |
1669 | char **error_message ATTRIBUTE_UNUSED) | |
1670 | { | |
1671 | bfd_vma relocation; | |
1672 | ||
1673 | if (output_bfd != NULL) | |
1674 | { | |
1675 | reloc_entry->address += input_section->output_offset; | |
1676 | return bfd_reloc_ok; | |
1677 | } | |
1678 | ||
1679 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
1680 | return bfd_reloc_outofrange; | |
1681 | ||
1682 | if (bfd_is_com_section (symbol->section)) | |
1683 | relocation = 0; | |
1684 | else | |
1685 | relocation = symbol->value; | |
1686 | ||
1687 | relocation += symbol->section->output_section->vma; | |
1688 | relocation += symbol->section->output_offset; | |
1689 | relocation += reloc_entry->addend; | |
d7128ce4 AM |
1690 | if (reloc_entry->howto->pc_relative) |
1691 | relocation -= reloc_entry->address; | |
25dbc73a AM |
1692 | |
1693 | reloc_entry->addend += (relocation & 0x8000) << 1; | |
1694 | ||
1695 | return bfd_reloc_continue; | |
1696 | } | |
1697 | ||
1698 | static bfd_reloc_status_type | |
1699 | ppc_elf_unhandled_reloc (bfd *abfd, | |
1700 | arelent *reloc_entry, | |
1701 | asymbol *symbol, | |
1702 | void *data, | |
1703 | asection *input_section, | |
1704 | bfd *output_bfd, | |
1705 | char **error_message) | |
1706 | { | |
1707 | /* If this is a relocatable link (output_bfd test tells us), just | |
1708 | call the generic function. Any adjustment will be done at final | |
1709 | link time. */ | |
1710 | if (output_bfd != NULL) | |
1711 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
1712 | input_section, output_bfd, error_message); | |
1713 | ||
1714 | if (error_message != NULL) | |
1715 | { | |
1716 | static char buf[60]; | |
1717 | sprintf (buf, _("generic linker can't handle %s"), | |
1718 | reloc_entry->howto->name); | |
1719 | *error_message = buf; | |
1720 | } | |
1721 | return bfd_reloc_dangerous; | |
1722 | } | |
1723 | \f | |
1724 | /* Sections created by the linker. */ | |
1725 | ||
1726 | typedef struct elf_linker_section | |
1727 | { | |
c9a2f333 | 1728 | /* Pointer to the bfd section. */ |
25dbc73a | 1729 | asection *section; |
c9a2f333 AM |
1730 | /* Section name. */ |
1731 | const char *name; | |
1732 | /* Associated bss section name. */ | |
1733 | const char *bss_name; | |
1734 | /* Associated symbol name. */ | |
1735 | const char *sym_name; | |
046183de AM |
1736 | /* Associated symbol. */ |
1737 | struct elf_link_hash_entry *sym; | |
25dbc73a AM |
1738 | } elf_linker_section_t; |
1739 | ||
1740 | /* Linked list of allocated pointer entries. This hangs off of the | |
1741 | symbol lists, and provides allows us to return different pointers, | |
1742 | based on different addend's. */ | |
1743 | ||
1744 | typedef struct elf_linker_section_pointers | |
1745 | { | |
1746 | /* next allocated pointer for this symbol */ | |
1747 | struct elf_linker_section_pointers *next; | |
1748 | /* offset of pointer from beginning of section */ | |
1749 | bfd_vma offset; | |
1750 | /* addend used */ | |
1751 | bfd_vma addend; | |
1752 | /* which linker section this is */ | |
1753 | elf_linker_section_t *lsect; | |
25dbc73a AM |
1754 | } elf_linker_section_pointers_t; |
1755 | ||
1756 | struct ppc_elf_obj_tdata | |
1757 | { | |
1758 | struct elf_obj_tdata elf; | |
1759 | ||
1760 | /* A mapping from local symbols to offsets into the various linker | |
1761 | sections added. This is index by the symbol index. */ | |
1762 | elf_linker_section_pointers_t **linker_section_pointers; | |
016687f8 AM |
1763 | |
1764 | /* Flags used to auto-detect plt type. */ | |
1765 | unsigned int makes_plt_call : 1; | |
1766 | unsigned int has_rel16 : 1; | |
25dbc73a AM |
1767 | }; |
1768 | ||
1769 | #define ppc_elf_tdata(bfd) \ | |
1770 | ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) | |
7619e7c7 | 1771 | |
25dbc73a AM |
1772 | #define elf_local_ptr_offsets(bfd) \ |
1773 | (ppc_elf_tdata (bfd)->linker_section_pointers) | |
7619e7c7 | 1774 | |
0c8d6e5c AM |
1775 | #define is_ppc_elf(bfd) \ |
1776 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
1777 | && elf_object_id (bfd) == PPC32_ELF_TDATA) | |
1778 | ||
25dbc73a | 1779 | /* Override the generic function because we store some extras. */ |
7619e7c7 | 1780 | |
25dbc73a AM |
1781 | static bfd_boolean |
1782 | ppc_elf_mkobject (bfd *abfd) | |
1783 | { | |
0ffa91dd NC |
1784 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata), |
1785 | PPC32_ELF_TDATA); | |
25dbc73a | 1786 | } |
7619e7c7 | 1787 | |
25dbc73a AM |
1788 | /* Fix bad default arch selected for a 32 bit input bfd when the |
1789 | default is 64 bit. */ | |
7619e7c7 | 1790 | |
25dbc73a AM |
1791 | static bfd_boolean |
1792 | ppc_elf_object_p (bfd *abfd) | |
1793 | { | |
1794 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64) | |
1795 | { | |
1796 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
7619e7c7 | 1797 | |
25dbc73a AM |
1798 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) |
1799 | { | |
1800 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
1801 | abfd->arch_info = abfd->arch_info->next; | |
1802 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
1803 | } | |
1804 | } | |
1805 | return TRUE; | |
1806 | } | |
7619e7c7 | 1807 | |
25dbc73a | 1808 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
7619e7c7 | 1809 | |
25dbc73a AM |
1810 | static bfd_boolean |
1811 | ppc_elf_set_private_flags (bfd *abfd, flagword flags) | |
1812 | { | |
1813 | BFD_ASSERT (!elf_flags_init (abfd) | |
1814 | || elf_elfheader (abfd)->e_flags == flags); | |
7619e7c7 | 1815 | |
25dbc73a AM |
1816 | elf_elfheader (abfd)->e_flags = flags; |
1817 | elf_flags_init (abfd) = TRUE; | |
1818 | return TRUE; | |
1819 | } | |
1820 | ||
25dbc73a | 1821 | /* Support for core dump NOTE sections. */ |
deaaf2f3 | 1822 | |
b34976b6 | 1823 | static bfd_boolean |
25dbc73a | 1824 | ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 1825 | { |
25dbc73a AM |
1826 | int offset; |
1827 | unsigned int size; | |
252b5132 | 1828 | |
25dbc73a AM |
1829 | switch (note->descsz) |
1830 | { | |
1831 | default: | |
1832 | return FALSE; | |
252b5132 | 1833 | |
25dbc73a AM |
1834 | case 268: /* Linux/PPC. */ |
1835 | /* pr_cursig */ | |
1836 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
deaaf2f3 | 1837 | |
25dbc73a AM |
1838 | /* pr_pid */ |
1839 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
9abc968f | 1840 | |
25dbc73a AM |
1841 | /* pr_reg */ |
1842 | offset = 72; | |
1843 | size = 192; | |
deaaf2f3 | 1844 | |
25dbc73a AM |
1845 | break; |
1846 | } | |
deaaf2f3 | 1847 | |
25dbc73a AM |
1848 | /* Make a ".reg/999" section. */ |
1849 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1850 | size, note->descpos + offset); | |
1851 | } | |
252b5132 | 1852 | |
25dbc73a AM |
1853 | static bfd_boolean |
1854 | ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
1855 | { | |
1856 | switch (note->descsz) | |
deaaf2f3 | 1857 | { |
25dbc73a AM |
1858 | default: |
1859 | return FALSE; | |
deaaf2f3 | 1860 | |
25dbc73a AM |
1861 | case 128: /* Linux/PPC elf_prpsinfo. */ |
1862 | elf_tdata (abfd)->core_program | |
1863 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); | |
1864 | elf_tdata (abfd)->core_command | |
1865 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); | |
1866 | } | |
9abc968f | 1867 | |
25dbc73a AM |
1868 | /* Note that for some reason, a spurious space is tacked |
1869 | onto the end of the args in some (at least one anyway) | |
1870 | implementations, so strip it off if it exists. */ | |
70bccea4 | 1871 | |
25dbc73a AM |
1872 | { |
1873 | char *command = elf_tdata (abfd)->core_command; | |
1874 | int n = strlen (command); | |
70bccea4 | 1875 | |
25dbc73a AM |
1876 | if (0 < n && command[n - 1] == ' ') |
1877 | command[n - 1] = '\0'; | |
1878 | } | |
deaaf2f3 | 1879 | |
25dbc73a AM |
1880 | return TRUE; |
1881 | } | |
deaaf2f3 | 1882 | |
183e98be AM |
1883 | static char * |
1884 | ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...) | |
1885 | { | |
1886 | switch (note_type) | |
1887 | { | |
1888 | default: | |
1889 | return NULL; | |
1890 | ||
1891 | case NT_PRPSINFO: | |
1892 | { | |
1893 | char data[128]; | |
1894 | va_list ap; | |
1895 | ||
1896 | va_start (ap, note_type); | |
1897 | memset (data, 0, 32); | |
1898 | strncpy (data + 32, va_arg (ap, const char *), 16); | |
1899 | strncpy (data + 48, va_arg (ap, const char *), 80); | |
1900 | va_end (ap); | |
1901 | return elfcore_write_note (abfd, buf, bufsiz, | |
1902 | "CORE", note_type, data, sizeof (data)); | |
1903 | } | |
1904 | ||
1905 | case NT_PRSTATUS: | |
1906 | { | |
1907 | char data[268]; | |
1908 | va_list ap; | |
1909 | long pid; | |
1910 | int cursig; | |
1911 | const void *greg; | |
1912 | ||
1913 | va_start (ap, note_type); | |
1914 | memset (data, 0, 72); | |
1915 | pid = va_arg (ap, long); | |
1916 | bfd_put_32 (abfd, pid, data + 24); | |
1917 | cursig = va_arg (ap, int); | |
1918 | bfd_put_16 (abfd, cursig, data + 12); | |
1919 | greg = va_arg (ap, const void *); | |
1920 | memcpy (data + 72, greg, 192); | |
1921 | memset (data + 264, 0, 4); | |
1922 | va_end (ap); | |
1923 | return elfcore_write_note (abfd, buf, bufsiz, | |
1924 | "CORE", note_type, data, sizeof (data)); | |
1925 | } | |
1926 | } | |
1927 | } | |
1928 | ||
25dbc73a AM |
1929 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
1930 | or (bfd_vma) -1 if it should not be included. */ | |
deaaf2f3 | 1931 | |
25dbc73a AM |
1932 | static bfd_vma |
1933 | ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
1934 | const asection *plt ATTRIBUTE_UNUSED, | |
1935 | const arelent *rel) | |
1936 | { | |
1937 | return rel->address; | |
1938 | } | |
deaaf2f3 | 1939 | |
25dbc73a | 1940 | /* Handle a PowerPC specific section when reading an object file. This |
6dc132d9 L |
1941 | is called when bfd_section_from_shdr finds a section with an unknown |
1942 | type. */ | |
deaaf2f3 | 1943 | |
25dbc73a | 1944 | static bfd_boolean |
6dc132d9 L |
1945 | ppc_elf_section_from_shdr (bfd *abfd, |
1946 | Elf_Internal_Shdr *hdr, | |
1947 | const char *name, | |
1948 | int shindex) | |
25dbc73a AM |
1949 | { |
1950 | asection *newsect; | |
1951 | flagword flags; | |
d1c6de6f | 1952 | |
6dc132d9 | 1953 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
25dbc73a | 1954 | return FALSE; |
deaaf2f3 | 1955 | |
25dbc73a AM |
1956 | newsect = hdr->bfd_section; |
1957 | flags = bfd_get_section_flags (abfd, newsect); | |
1958 | if (hdr->sh_flags & SHF_EXCLUDE) | |
1959 | flags |= SEC_EXCLUDE; | |
9abc968f | 1960 | |
25dbc73a AM |
1961 | if (hdr->sh_type == SHT_ORDERED) |
1962 | flags |= SEC_SORT_ENTRIES; | |
d1c6de6f | 1963 | |
25dbc73a AM |
1964 | bfd_set_section_flags (abfd, newsect, flags); |
1965 | return TRUE; | |
1966 | } | |
1967 | ||
1968 | /* Set up any other section flags and such that may be necessary. */ | |
1969 | ||
1970 | static bfd_boolean | |
1971 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
1972 | Elf_Internal_Shdr *shdr, | |
1973 | asection *asect) | |
1974 | { | |
d30e8e7c | 1975 | if ((asect->flags & (SEC_GROUP | SEC_EXCLUDE)) == SEC_EXCLUDE) |
25dbc73a AM |
1976 | shdr->sh_flags |= SHF_EXCLUDE; |
1977 | ||
1978 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) | |
1979 | shdr->sh_type = SHT_ORDERED; | |
1980 | ||
1981 | return TRUE; | |
1982 | } | |
1983 | ||
1984 | /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we | |
1985 | need to bump up the number of section headers. */ | |
1986 | ||
1987 | static int | |
a6b96beb AM |
1988 | ppc_elf_additional_program_headers (bfd *abfd, |
1989 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
25dbc73a AM |
1990 | { |
1991 | asection *s; | |
1992 | int ret = 0; | |
d1c6de6f | 1993 | |
25dbc73a AM |
1994 | s = bfd_get_section_by_name (abfd, ".sbss2"); |
1995 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
1996 | ++ret; | |
d1c6de6f | 1997 | |
25dbc73a AM |
1998 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); |
1999 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2000 | ++ret; | |
deaaf2f3 | 2001 | |
25dbc73a AM |
2002 | return ret; |
2003 | } | |
deaaf2f3 | 2004 | |
25dbc73a AM |
2005 | /* Add extra PPC sections -- Note, for now, make .sbss2 and |
2006 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
2007 | that the linker doesn't crater when trying to make more than | |
2008 | 2 sections. */ | |
e656e369 | 2009 | |
b35d266b | 2010 | static const struct bfd_elf_special_section ppc_elf_special_sections[] = |
7f4d3958 | 2011 | { |
0112cd26 NC |
2012 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2013 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2014 | { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2015 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2016 | { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2017 | { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, | |
2018 | { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 }, | |
2019 | { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2020 | { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2021 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2022 | }; |
2023 | ||
551b43fd AM |
2024 | /* This is what we want for new plt/got. */ |
2025 | static struct bfd_elf_special_section ppc_alt_plt = | |
0112cd26 | 2026 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; |
551b43fd AM |
2027 | |
2028 | static const struct bfd_elf_special_section * | |
2029 | ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
7f4d3958 | 2030 | { |
b35d266b | 2031 | const struct bfd_elf_special_section *ssect; |
551b43fd AM |
2032 | |
2033 | /* See if this is one of the special sections. */ | |
2034 | if (sec->name == NULL) | |
2035 | return NULL; | |
2036 | ||
2037 | ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, | |
2038 | sec->use_rela_p); | |
2039 | if (ssect != NULL) | |
2040 | { | |
2041 | if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) | |
2042 | ssect = &ppc_alt_plt; | |
2043 | return ssect; | |
2044 | } | |
2045 | ||
2046 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
2047 | } | |
25dbc73a AM |
2048 | \f |
2049 | /* Very simple linked list structure for recording apuinfo values. */ | |
2050 | typedef struct apuinfo_list | |
2051 | { | |
2052 | struct apuinfo_list *next; | |
2053 | unsigned long value; | |
2054 | } | |
2055 | apuinfo_list; | |
e656e369 | 2056 | |
25dbc73a | 2057 | static apuinfo_list *head; |
deaaf2f3 | 2058 | |
deaaf2f3 | 2059 | |
25dbc73a AM |
2060 | static void |
2061 | apuinfo_list_init (void) | |
2062 | { | |
2063 | head = NULL; | |
2064 | } | |
9abc968f | 2065 | |
25dbc73a AM |
2066 | static void |
2067 | apuinfo_list_add (unsigned long value) | |
2068 | { | |
2069 | apuinfo_list *entry = head; | |
deaaf2f3 | 2070 | |
25dbc73a AM |
2071 | while (entry != NULL) |
2072 | { | |
2073 | if (entry->value == value) | |
2074 | return; | |
2075 | entry = entry->next; | |
2076 | } | |
b4a38de6 | 2077 | |
25dbc73a AM |
2078 | entry = bfd_malloc (sizeof (* entry)); |
2079 | if (entry == NULL) | |
2080 | return; | |
e656e369 | 2081 | |
25dbc73a AM |
2082 | entry->value = value; |
2083 | entry->next = head; | |
2084 | head = entry; | |
2085 | } | |
9abc968f | 2086 | |
25dbc73a AM |
2087 | static unsigned |
2088 | apuinfo_list_length (void) | |
2089 | { | |
2090 | apuinfo_list *entry; | |
2091 | unsigned long count; | |
9abc968f | 2092 | |
25dbc73a AM |
2093 | for (entry = head, count = 0; |
2094 | entry; | |
2095 | entry = entry->next) | |
2096 | ++ count; | |
e656e369 | 2097 | |
25dbc73a AM |
2098 | return count; |
2099 | } | |
eea6121a | 2100 | |
25dbc73a AM |
2101 | static inline unsigned long |
2102 | apuinfo_list_element (unsigned long number) | |
2103 | { | |
2104 | apuinfo_list * entry; | |
e656e369 | 2105 | |
25dbc73a AM |
2106 | for (entry = head; |
2107 | entry && number --; | |
2108 | entry = entry->next) | |
2109 | ; | |
252b5132 | 2110 | |
25dbc73a AM |
2111 | return entry ? entry->value : 0; |
2112 | } | |
2113 | ||
2114 | static void | |
2115 | apuinfo_list_finish (void) | |
2116 | { | |
2117 | apuinfo_list *entry; | |
2118 | ||
2119 | for (entry = head; entry;) | |
252b5132 | 2120 | { |
25dbc73a AM |
2121 | apuinfo_list *next = entry->next; |
2122 | free (entry); | |
2123 | entry = next; | |
2124 | } | |
9abc968f | 2125 | |
25dbc73a AM |
2126 | head = NULL; |
2127 | } | |
9abc968f | 2128 | |
25dbc73a AM |
2129 | #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" |
2130 | #define APUINFO_LABEL "APUinfo" | |
9abc968f | 2131 | |
25dbc73a AM |
2132 | /* Scan the input BFDs and create a linked list of |
2133 | the APUinfo values that will need to be emitted. */ | |
9abc968f | 2134 | |
25dbc73a AM |
2135 | static void |
2136 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
2137 | { | |
2138 | bfd *ibfd; | |
2139 | asection *asec; | |
2140 | char *buffer; | |
2141 | unsigned num_input_sections; | |
2142 | bfd_size_type output_section_size; | |
2143 | unsigned i; | |
2144 | unsigned num_entries; | |
2145 | unsigned long offset; | |
2146 | unsigned long length; | |
2147 | const char *error_message = NULL; | |
9abc968f | 2148 | |
25dbc73a AM |
2149 | if (link_info == NULL) |
2150 | return; | |
9abc968f | 2151 | |
25dbc73a AM |
2152 | /* Scan the input bfds, looking for apuinfo sections. */ |
2153 | num_input_sections = 0; | |
2154 | output_section_size = 0; | |
252b5132 | 2155 | |
25dbc73a | 2156 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) |
252b5132 | 2157 | { |
25dbc73a AM |
2158 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2159 | if (asec) | |
252b5132 | 2160 | { |
25dbc73a AM |
2161 | ++ num_input_sections; |
2162 | output_section_size += asec->size; | |
252b5132 | 2163 | } |
252b5132 RH |
2164 | } |
2165 | ||
25dbc73a AM |
2166 | /* We need at least one input sections |
2167 | in order to make merging worthwhile. */ | |
2168 | if (num_input_sections < 1) | |
2169 | return; | |
deaaf2f3 | 2170 | |
25dbc73a AM |
2171 | /* Just make sure that the output section exists as well. */ |
2172 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
2173 | if (asec == NULL) | |
2174 | return; | |
252b5132 | 2175 | |
25dbc73a AM |
2176 | /* Allocate a buffer for the contents of the input sections. */ |
2177 | buffer = bfd_malloc (output_section_size); | |
2178 | if (buffer == NULL) | |
2179 | return; | |
252b5132 | 2180 | |
25dbc73a AM |
2181 | offset = 0; |
2182 | apuinfo_list_init (); | |
252b5132 | 2183 | |
25dbc73a AM |
2184 | /* Read in the input sections contents. */ |
2185 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
252b5132 | 2186 | { |
25dbc73a AM |
2187 | unsigned long datum; |
2188 | char *ptr; | |
252b5132 | 2189 | |
25dbc73a AM |
2190 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2191 | if (asec == NULL) | |
2192 | continue; | |
252b5132 | 2193 | |
25dbc73a AM |
2194 | length = asec->size; |
2195 | if (length < 24) | |
2196 | { | |
2197 | error_message = _("corrupt or empty %s section in %B"); | |
2198 | goto fail; | |
2199 | } | |
252b5132 | 2200 | |
25dbc73a AM |
2201 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
2202 | || (bfd_bread (buffer + offset, length, ibfd) != length)) | |
2203 | { | |
2204 | error_message = _("unable to read in %s section from %B"); | |
2205 | goto fail; | |
2206 | } | |
252b5132 | 2207 | |
25dbc73a AM |
2208 | /* Process the contents of the section. */ |
2209 | ptr = buffer + offset; | |
2210 | error_message = _("corrupt %s section in %B"); | |
252b5132 | 2211 | |
25dbc73a AM |
2212 | /* Verify the contents of the header. Note - we have to |
2213 | extract the values this way in order to allow for a | |
2214 | host whose endian-ness is different from the target. */ | |
2215 | datum = bfd_get_32 (ibfd, ptr); | |
2216 | if (datum != sizeof APUINFO_LABEL) | |
2217 | goto fail; | |
252b5132 | 2218 | |
25dbc73a AM |
2219 | datum = bfd_get_32 (ibfd, ptr + 8); |
2220 | if (datum != 0x2) | |
2221 | goto fail; | |
252b5132 | 2222 | |
25dbc73a AM |
2223 | if (strcmp (ptr + 12, APUINFO_LABEL) != 0) |
2224 | goto fail; | |
252b5132 | 2225 | |
25dbc73a AM |
2226 | /* Get the number of bytes used for apuinfo entries. */ |
2227 | datum = bfd_get_32 (ibfd, ptr + 4); | |
2228 | if (datum + 20 != length) | |
2229 | goto fail; | |
2230 | ||
2231 | /* Make sure that we do not run off the end of the section. */ | |
2232 | if (offset + length > output_section_size) | |
2233 | goto fail; | |
2234 | ||
2235 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ | |
2236 | for (i = 0; i < datum; i += 4) | |
2237 | apuinfo_list_add (bfd_get_32 (ibfd, ptr + 20 + i)); | |
2238 | ||
2239 | /* Update the offset. */ | |
2240 | offset += length; | |
252b5132 RH |
2241 | } |
2242 | ||
25dbc73a | 2243 | error_message = NULL; |
252b5132 | 2244 | |
25dbc73a AM |
2245 | /* Compute the size of the output section. */ |
2246 | num_entries = apuinfo_list_length (); | |
2247 | output_section_size = 20 + num_entries * 4; | |
252b5132 | 2248 | |
25dbc73a AM |
2249 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2250 | ||
2251 | if (! bfd_set_section_size (abfd, asec, output_section_size)) | |
2252 | ibfd = abfd, | |
2253 | error_message = _("warning: unable to set size of %s section in %B"); | |
2254 | ||
2255 | fail: | |
2256 | free (buffer); | |
2257 | ||
2258 | if (error_message) | |
2259 | (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME); | |
2260 | } | |
252b5132 | 2261 | |
25dbc73a AM |
2262 | /* Prevent the output section from accumulating the input sections' |
2263 | contents. We have already stored this in our linked list structure. */ | |
252b5132 | 2264 | |
25dbc73a AM |
2265 | static bfd_boolean |
2266 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
c7b8f16e | 2267 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
25dbc73a AM |
2268 | asection *asec, |
2269 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
2270 | { | |
2271 | return (apuinfo_list_length () | |
2272 | && strcmp (asec->name, APUINFO_SECTION_NAME) == 0); | |
252b5132 RH |
2273 | } |
2274 | ||
25dbc73a AM |
2275 | /* Finally we can generate the output section. */ |
2276 | ||
2277 | static void | |
2278 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
7619e7c7 | 2279 | { |
25dbc73a AM |
2280 | bfd_byte *buffer; |
2281 | asection *asec; | |
2282 | unsigned i; | |
2283 | unsigned num_entries; | |
2284 | bfd_size_type length; | |
7619e7c7 | 2285 | |
25dbc73a AM |
2286 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2287 | if (asec == NULL) | |
2288 | return; | |
2289 | ||
2290 | if (apuinfo_list_length () == 0) | |
2291 | return; | |
2292 | ||
2293 | length = asec->size; | |
2294 | if (length < 20) | |
2295 | return; | |
2296 | ||
2297 | buffer = bfd_malloc (length); | |
2298 | if (buffer == NULL) | |
7619e7c7 | 2299 | { |
25dbc73a AM |
2300 | (*_bfd_error_handler) |
2301 | (_("failed to allocate space for new APUinfo section.")); | |
2302 | return; | |
7619e7c7 | 2303 | } |
7619e7c7 | 2304 | |
25dbc73a AM |
2305 | /* Create the apuinfo header. */ |
2306 | num_entries = apuinfo_list_length (); | |
2307 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
2308 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); | |
2309 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
2310 | strcpy ((char *) buffer + 12, APUINFO_LABEL); | |
feee612b | 2311 | |
25dbc73a AM |
2312 | length = 20; |
2313 | for (i = 0; i < num_entries; i++) | |
feee612b | 2314 | { |
25dbc73a AM |
2315 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); |
2316 | length += 4; | |
feee612b | 2317 | } |
feee612b | 2318 | |
25dbc73a AM |
2319 | if (length != asec->size) |
2320 | (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); | |
252b5132 | 2321 | |
25dbc73a AM |
2322 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
2323 | (*_bfd_error_handler) (_("failed to install new APUinfo section.")); | |
252b5132 | 2324 | |
25dbc73a AM |
2325 | free (buffer); |
2326 | ||
2327 | apuinfo_list_finish (); | |
252b5132 | 2328 | } |
25dbc73a | 2329 | \f |
7382d32a AM |
2330 | static bfd_boolean |
2331 | is_pic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) | |
2332 | { | |
2333 | bfd_byte buf[16]; | |
2334 | unsigned int insn; | |
2335 | ||
2336 | if (!bfd_get_section_contents (abfd, glink, buf, off, 16)) | |
2337 | return FALSE; | |
2338 | ||
2339 | insn = bfd_get_32 (abfd, buf); | |
2340 | if ((insn & 0xffff0000) == LWZ_11_30 | |
2341 | && bfd_get_32 (abfd, buf + 4) == MTCTR_11 | |
2342 | && bfd_get_32 (abfd, buf + 8) == BCTR) | |
2343 | return TRUE; | |
2344 | ||
2345 | if ((insn & 0xffff0000) == ADDIS_11_30 | |
2346 | && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 | |
2347 | && bfd_get_32 (abfd, buf + 8) == MTCTR_11 | |
2348 | && bfd_get_32 (abfd, buf + 12) == BCTR) | |
2349 | return TRUE; | |
2350 | return FALSE; | |
2351 | } | |
2352 | ||
468392fb AM |
2353 | static bfd_boolean |
2354 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
2355 | { | |
2356 | bfd_vma vma = *(bfd_vma *) ptr; | |
2357 | return ((section->flags & SEC_ALLOC) != 0 | |
2358 | && section->vma <= vma | |
2359 | && vma < section->vma + section->size); | |
2360 | } | |
2361 | ||
2362 | static long | |
2363 | ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, | |
2364 | long dynsymcount, asymbol **dynsyms, | |
2365 | asymbol **ret) | |
2366 | { | |
2367 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
2368 | asection *plt, *relplt, *dynamic, *glink; | |
2369 | bfd_vma glink_vma = 0; | |
2370 | bfd_vma resolv_vma = 0; | |
2371 | bfd_vma stub_vma; | |
2372 | asymbol *s; | |
2373 | arelent *p; | |
2374 | long count, i; | |
2375 | size_t size; | |
2376 | char *names; | |
2377 | bfd_byte buf[4]; | |
2378 | ||
2379 | *ret = NULL; | |
2380 | ||
2381 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) | |
2382 | return 0; | |
2383 | ||
2384 | if (dynsymcount <= 0) | |
2385 | return 0; | |
2386 | ||
2387 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
2388 | if (relplt == NULL) | |
2389 | return 0; | |
2390 | ||
2391 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
2392 | if (plt == NULL) | |
2393 | return 0; | |
2394 | ||
2395 | /* Call common code to handle old-style executable PLTs. */ | |
2396 | if (elf_section_flags (plt) & SHF_EXECINSTR) | |
2397 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
2398 | dynsymcount, dynsyms, ret); | |
2399 | ||
2400 | /* If this object was prelinked, the prelinker stored the address | |
2401 | of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ | |
2402 | dynamic = bfd_get_section_by_name (abfd, ".dynamic"); | |
2403 | if (dynamic != NULL) | |
2404 | { | |
2405 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
2406 | size_t extdynsize; | |
2407 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
2408 | ||
2409 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
2410 | return -1; | |
2411 | ||
2412 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
2413 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
2414 | ||
2415 | extdyn = dynbuf; | |
2416 | extdynend = extdyn + dynamic->size; | |
2417 | for (; extdyn < extdynend; extdyn += extdynsize) | |
2418 | { | |
2419 | Elf_Internal_Dyn dyn; | |
2420 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
2421 | ||
2422 | if (dyn.d_tag == DT_NULL) | |
2423 | break; | |
2424 | ||
2425 | if (dyn.d_tag == DT_PPC_GOT) | |
2426 | { | |
2427 | unsigned int g_o_t = dyn.d_un.d_val; | |
2428 | asection *got = bfd_get_section_by_name (abfd, ".got"); | |
2429 | if (got != NULL | |
2430 | && bfd_get_section_contents (abfd, got, buf, | |
2431 | g_o_t - got->vma + 4, 4)) | |
2432 | glink_vma = bfd_get_32 (abfd, buf); | |
2433 | break; | |
2434 | } | |
2435 | } | |
2436 | free (dynbuf); | |
2437 | } | |
2438 | ||
2439 | /* Otherwise we read the first plt entry. */ | |
2440 | if (glink_vma == 0) | |
2441 | { | |
2442 | if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) | |
2443 | glink_vma = bfd_get_32 (abfd, buf); | |
2444 | } | |
2445 | ||
2446 | if (glink_vma == 0) | |
2447 | return 0; | |
2448 | ||
2449 | /* The .glink section usually does not survive the final | |
2450 | link; search for the section (usually .text) where the | |
2451 | glink stubs now reside. */ | |
2452 | glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); | |
2453 | if (glink == NULL) | |
2454 | return 0; | |
2455 | ||
2456 | /* Determine glink PLT resolver by reading the relative branch | |
2457 | from the first glink stub. */ | |
2458 | if (bfd_get_section_contents (abfd, glink, buf, | |
2459 | glink_vma - glink->vma, 4)) | |
2460 | { | |
2461 | unsigned int insn = bfd_get_32 (abfd, buf); | |
2462 | ||
2463 | /* The first glink stub may either branch to the resolver ... */ | |
2464 | insn ^= B; | |
2465 | if ((insn & ~0x3fffffc) == 0) | |
2466 | resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; | |
2467 | ||
2468 | /* ... or fall through a bunch of NOPs. */ | |
2469 | else if ((insn ^ B ^ NOP) == 0) | |
2470 | for (i = 4; | |
2471 | bfd_get_section_contents (abfd, glink, buf, | |
2472 | glink_vma - glink->vma + i, 4); | |
2473 | i += 4) | |
2474 | if (bfd_get_32 (abfd, buf) != NOP) | |
2475 | { | |
2476 | resolv_vma = glink_vma + i; | |
2477 | break; | |
2478 | } | |
2479 | } | |
2480 | ||
7382d32a AM |
2481 | count = relplt->size / sizeof (Elf32_External_Rela); |
2482 | stub_vma = glink_vma - (bfd_vma) count * 16; | |
2483 | /* If the stubs are those for -shared/-pie then we might have | |
2484 | multiple stubs for each plt entry. If that is the case then | |
2485 | there is no way to associate stubs with their plt entries short | |
2486 | of figuring out the GOT pointer value used in the stub. */ | |
2487 | if (!bfd_get_section_contents (abfd, glink, buf, | |
2488 | stub_vma - glink->vma, 4) | |
2489 | || ((bfd_get_32 (abfd, buf) & 0xffff0000) != LIS_11 | |
2490 | && is_pic_glink_stub (abfd, glink, stub_vma - glink->vma - 16))) | |
2491 | return 0; | |
2492 | ||
468392fb AM |
2493 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
2494 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) | |
2495 | return -1; | |
2496 | ||
468392fb AM |
2497 | size = count * sizeof (asymbol); |
2498 | p = relplt->relocation; | |
2499 | for (i = 0; i < count; i++, p++) | |
2500 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
2501 | ||
2502 | size += sizeof (asymbol) + sizeof ("__glink"); | |
2503 | ||
2504 | if (resolv_vma) | |
2505 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
2506 | ||
2507 | s = *ret = bfd_malloc (size); | |
2508 | if (s == NULL) | |
2509 | return -1; | |
2510 | ||
2511 | names = (char *) (s + count + 1 + (resolv_vma != 0)); | |
2512 | p = relplt->relocation; | |
2513 | for (i = 0; i < count; i++, p++) | |
2514 | { | |
2515 | size_t len; | |
2516 | ||
2517 | *s = **p->sym_ptr_ptr; | |
2518 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
2519 | we are defining a symbol, ensure one of them is set. */ | |
2520 | if ((s->flags & BSF_LOCAL) == 0) | |
2521 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 2522 | s->flags |= BSF_SYNTHETIC; |
468392fb AM |
2523 | s->section = glink; |
2524 | s->value = stub_vma - glink->vma; | |
2525 | s->name = names; | |
2526 | s->udata.p = NULL; | |
2527 | len = strlen ((*p->sym_ptr_ptr)->name); | |
2528 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
2529 | names += len; | |
2530 | memcpy (names, "@plt", sizeof ("@plt")); | |
2531 | names += sizeof ("@plt"); | |
2532 | ++s; | |
2533 | stub_vma += 16; | |
2534 | } | |
2535 | ||
2536 | /* Add a symbol at the start of the glink branch table. */ | |
86a4952b | 2537 | memset (s, 0, sizeof *s); |
468392fb | 2538 | s->the_bfd = abfd; |
6ba2a415 | 2539 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
2540 | s->section = glink; |
2541 | s->value = glink_vma - glink->vma; | |
2542 | s->name = names; | |
2543 | memcpy (names, "__glink", sizeof ("__glink")); | |
2544 | names += sizeof ("__glink"); | |
2545 | s++; | |
2546 | count++; | |
2547 | ||
2548 | if (resolv_vma) | |
2549 | { | |
2550 | /* Add a symbol for the glink PLT resolver. */ | |
86a4952b | 2551 | memset (s, 0, sizeof *s); |
468392fb | 2552 | s->the_bfd = abfd; |
6ba2a415 | 2553 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
2554 | s->section = glink; |
2555 | s->value = resolv_vma - glink->vma; | |
2556 | s->name = names; | |
2557 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
2558 | names += sizeof ("__glink_PLTresolve"); | |
2559 | s++; | |
2560 | count++; | |
2561 | } | |
2562 | ||
2563 | return count; | |
2564 | } | |
2565 | \f | |
25dbc73a AM |
2566 | /* The following functions are specific to the ELF linker, while |
2567 | functions above are used generally. They appear in this file more | |
2568 | or less in the order in which they are called. eg. | |
2569 | ppc_elf_check_relocs is called early in the link process, | |
2570 | ppc_elf_finish_dynamic_sections is one of the last functions | |
2571 | called. */ | |
252b5132 | 2572 | |
25dbc73a AM |
2573 | /* The PPC linker needs to keep track of the number of relocs that it |
2574 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
2575 | This is so that it can later discard them if they are found to be | |
2576 | unnecessary. We store the information in a field extending the | |
2577 | regular ELF linker hash table. */ | |
ae9a127f | 2578 | |
25dbc73a | 2579 | struct ppc_elf_dyn_relocs |
252b5132 | 2580 | { |
25dbc73a | 2581 | struct ppc_elf_dyn_relocs *next; |
252b5132 | 2582 | |
25dbc73a AM |
2583 | /* The input section of the reloc. */ |
2584 | asection *sec; | |
252b5132 | 2585 | |
25dbc73a AM |
2586 | /* Total number of relocs copied for the input section. */ |
2587 | bfd_size_type count; | |
252b5132 | 2588 | |
25dbc73a AM |
2589 | /* Number of pc-relative relocs copied for the input section. */ |
2590 | bfd_size_type pc_count; | |
2591 | }; | |
252b5132 | 2592 | |
a6aa5195 AM |
2593 | /* Track PLT entries needed for a given symbol. We might need more |
2594 | than one glink entry per symbol. */ | |
2595 | struct plt_entry | |
2596 | { | |
2597 | struct plt_entry *next; | |
2598 | ||
2599 | /* -fPIC uses multiple GOT sections, one per file, called ".got2". | |
2600 | This field stores the offset into .got2 used to initialise the | |
2601 | GOT pointer reg. It will always be at least 32768 (and for | |
2602 | current gcc this is the only offset used). */ | |
2603 | bfd_vma addend; | |
2604 | ||
2605 | /* The .got2 section. */ | |
2606 | asection *sec; | |
2607 | ||
2608 | /* PLT refcount or offset. */ | |
2609 | union | |
2610 | { | |
2611 | bfd_signed_vma refcount; | |
2612 | bfd_vma offset; | |
2613 | } plt; | |
2614 | ||
2615 | /* .glink stub offset. */ | |
2616 | bfd_vma glink_offset; | |
2617 | }; | |
2618 | ||
1d483afe | 2619 | /* Of those relocs that might be copied as dynamic relocs, this function |
25dbc73a AM |
2620 | selects those that must be copied when linking a shared library, |
2621 | even when the symbol is local. */ | |
252b5132 | 2622 | |
1d483afe AM |
2623 | static int |
2624 | must_be_dyn_reloc (struct bfd_link_info *info, | |
2625 | enum elf_ppc_reloc_type r_type) | |
2626 | { | |
2627 | switch (r_type) | |
2628 | { | |
2629 | default: | |
2630 | return 1; | |
2631 | ||
2632 | case R_PPC_REL24: | |
2633 | case R_PPC_REL14: | |
2634 | case R_PPC_REL14_BRTAKEN: | |
2635 | case R_PPC_REL14_BRNTAKEN: | |
2636 | case R_PPC_REL32: | |
2637 | return 0; | |
2638 | ||
2639 | case R_PPC_TPREL32: | |
2640 | case R_PPC_TPREL16: | |
2641 | case R_PPC_TPREL16_LO: | |
2642 | case R_PPC_TPREL16_HI: | |
2643 | case R_PPC_TPREL16_HA: | |
2644 | return !info->executable; | |
2645 | } | |
2646 | } | |
252b5132 | 2647 | |
25dbc73a AM |
2648 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
2649 | copying dynamic variables from a shared lib into an app's dynbss | |
2650 | section, and instead use a dynamic relocation to point into the | |
2651 | shared lib. */ | |
2652 | #define ELIMINATE_COPY_RELOCS 1 | |
252b5132 | 2653 | |
25dbc73a | 2654 | /* PPC ELF linker hash entry. */ |
252b5132 | 2655 | |
25dbc73a AM |
2656 | struct ppc_elf_link_hash_entry |
2657 | { | |
2658 | struct elf_link_hash_entry elf; | |
252b5132 | 2659 | |
25dbc73a AM |
2660 | /* If this symbol is used in the linker created sections, the processor |
2661 | specific backend uses this field to map the field into the offset | |
2662 | from the beginning of the section. */ | |
2663 | elf_linker_section_pointers_t *linker_section_pointer; | |
252b5132 | 2664 | |
25dbc73a AM |
2665 | /* Track dynamic relocs copied for this symbol. */ |
2666 | struct ppc_elf_dyn_relocs *dyn_relocs; | |
252b5132 | 2667 | |
25dbc73a AM |
2668 | /* Contexts in which symbol is used in the GOT (or TOC). |
2669 | TLS_GD .. TLS_TLS bits are or'd into the mask as the | |
2670 | corresponding relocs are encountered during check_relocs. | |
2671 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
2672 | indicate the corresponding GOT entry type is not needed. */ | |
2673 | #define TLS_GD 1 /* GD reloc. */ | |
2674 | #define TLS_LD 2 /* LD reloc. */ | |
2675 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
2676 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
2677 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
2678 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
2679 | char tls_mask; | |
4dc4a9a5 DJ |
2680 | |
2681 | /* Nonzero if we have seen a small data relocation referring to this | |
2682 | symbol. */ | |
2683 | unsigned char has_sda_refs; | |
25dbc73a | 2684 | }; |
252b5132 | 2685 | |
25dbc73a AM |
2686 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) |
2687 | ||
2688 | /* PPC ELF linker hash table. */ | |
2689 | ||
2690 | struct ppc_elf_link_hash_table | |
2691 | { | |
2692 | struct elf_link_hash_table elf; | |
2693 | ||
2694 | /* Short-cuts to get to dynamic linker sections. */ | |
2695 | asection *got; | |
2696 | asection *relgot; | |
d7128ce4 | 2697 | asection *glink; |
25dbc73a AM |
2698 | asection *plt; |
2699 | asection *relplt; | |
2700 | asection *dynbss; | |
2701 | asection *relbss; | |
2702 | asection *dynsbss; | |
2703 | asection *relsbss; | |
c9a2f333 | 2704 | elf_linker_section_t sdata[2]; |
25dbc73a AM |
2705 | asection *sbss; |
2706 | ||
016687f8 AM |
2707 | /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ |
2708 | asection *srelplt2; | |
2709 | ||
2710 | /* The .got.plt section (VxWorks only)*/ | |
2711 | asection *sgotplt; | |
2712 | ||
1d483afe | 2713 | /* Shortcut to __tls_get_addr. */ |
25dbc73a | 2714 | struct elf_link_hash_entry *tls_get_addr; |
252b5132 | 2715 | |
016687f8 AM |
2716 | /* The bfd that forced an old-style PLT. */ |
2717 | bfd *old_bfd; | |
2718 | ||
25dbc73a AM |
2719 | /* TLS local dynamic got entry handling. */ |
2720 | union { | |
2721 | bfd_signed_vma refcount; | |
2722 | bfd_vma offset; | |
2723 | } tlsld_got; | |
252b5132 | 2724 | |
d7128ce4 AM |
2725 | /* Offset of PltResolve function in glink. */ |
2726 | bfd_vma glink_pltresolve; | |
2727 | ||
3b36f7e6 AM |
2728 | /* Size of reserved GOT entries. */ |
2729 | unsigned int got_header_size; | |
2730 | /* Non-zero if allocating the header left a gap. */ | |
2731 | unsigned int got_gap; | |
2732 | ||
4a3dc543 RS |
2733 | /* The type of PLT we have chosen to use. */ |
2734 | enum ppc_elf_plt_type plt_type; | |
2735 | ||
0ba07910 AM |
2736 | /* Set if we should emit symbols for stubs. */ |
2737 | unsigned int emit_stub_syms:1; | |
2738 | ||
9d8504b1 | 2739 | /* True if the target system is VxWorks. */ |
016687f8 | 2740 | unsigned int is_vxworks:1; |
9d8504b1 PB |
2741 | |
2742 | /* The size of PLT entries. */ | |
2743 | int plt_entry_size; | |
2744 | /* The distance between adjacent PLT slots. */ | |
2745 | int plt_slot_size; | |
2746 | /* The size of the first PLT entry. */ | |
2747 | int plt_initial_entry_size; | |
016687f8 AM |
2748 | |
2749 | /* Small local sym to section mapping cache. */ | |
2750 | struct sym_sec_cache sym_sec; | |
25dbc73a | 2751 | }; |
252b5132 | 2752 | |
25dbc73a | 2753 | /* Get the PPC ELF linker hash table from a link_info structure. */ |
252b5132 | 2754 | |
25dbc73a AM |
2755 | #define ppc_elf_hash_table(p) \ |
2756 | ((struct ppc_elf_link_hash_table *) (p)->hash) | |
252b5132 | 2757 | |
25dbc73a | 2758 | /* Create an entry in a PPC ELF linker hash table. */ |
252b5132 | 2759 | |
25dbc73a AM |
2760 | static struct bfd_hash_entry * |
2761 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
2762 | struct bfd_hash_table *table, | |
2763 | const char *string) | |
252b5132 | 2764 | { |
25dbc73a AM |
2765 | /* Allocate the structure if it has not already been allocated by a |
2766 | subclass. */ | |
2767 | if (entry == NULL) | |
2768 | { | |
2769 | entry = bfd_hash_allocate (table, | |
2770 | sizeof (struct ppc_elf_link_hash_entry)); | |
2771 | if (entry == NULL) | |
2772 | return entry; | |
2773 | } | |
252b5132 | 2774 | |
25dbc73a AM |
2775 | /* Call the allocation method of the superclass. */ |
2776 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
2777 | if (entry != NULL) | |
2778 | { | |
2779 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; | |
2780 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
2781 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
2782 | } | |
252b5132 | 2783 | |
25dbc73a | 2784 | return entry; |
252b5132 | 2785 | } |
3dab13f6 | 2786 | |
25dbc73a | 2787 | /* Create a PPC ELF linker hash table. */ |
3dab13f6 | 2788 | |
25dbc73a AM |
2789 | static struct bfd_link_hash_table * |
2790 | ppc_elf_link_hash_table_create (bfd *abfd) | |
3dab13f6 | 2791 | { |
25dbc73a | 2792 | struct ppc_elf_link_hash_table *ret; |
3dab13f6 | 2793 | |
25dbc73a AM |
2794 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
2795 | if (ret == NULL) | |
2796 | return NULL; | |
3dab13f6 | 2797 | |
66eb6687 AM |
2798 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, |
2799 | ppc_elf_link_hash_newfunc, | |
2800 | sizeof (struct ppc_elf_link_hash_entry))) | |
3dab13f6 | 2801 | { |
25dbc73a AM |
2802 | free (ret); |
2803 | return NULL; | |
2804 | } | |
58111eb7 | 2805 | |
a6aa5195 AM |
2806 | ret->elf.init_plt_refcount.refcount = 0; |
2807 | ret->elf.init_plt_refcount.glist = NULL; | |
2808 | ret->elf.init_plt_offset.offset = 0; | |
2809 | ret->elf.init_plt_offset.glist = NULL; | |
2810 | ||
c9a2f333 AM |
2811 | ret->sdata[0].name = ".sdata"; |
2812 | ret->sdata[0].sym_name = "_SDA_BASE_"; | |
2813 | ret->sdata[0].bss_name = ".sbss"; | |
2814 | ||
2815 | ret->sdata[1].name = ".sdata2"; | |
2816 | ret->sdata[1].sym_name = "_SDA2_BASE_"; | |
2817 | ret->sdata[1].bss_name = ".sbss2"; | |
2818 | ||
9d8504b1 PB |
2819 | ret->plt_entry_size = 12; |
2820 | ret->plt_slot_size = 8; | |
2821 | ret->plt_initial_entry_size = 72; | |
9d8504b1 | 2822 | |
25dbc73a AM |
2823 | return &ret->elf.root; |
2824 | } | |
3dab13f6 | 2825 | |
9d8504b1 | 2826 | /* Create .got and the related sections. */ |
3dab13f6 | 2827 | |
25dbc73a AM |
2828 | static bfd_boolean |
2829 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) | |
2830 | { | |
2831 | struct ppc_elf_link_hash_table *htab; | |
2832 | asection *s; | |
2833 | flagword flags; | |
3dab13f6 | 2834 | |
25dbc73a AM |
2835 | if (!_bfd_elf_create_got_section (abfd, info)) |
2836 | return FALSE; | |
3dab13f6 | 2837 | |
25dbc73a AM |
2838 | htab = ppc_elf_hash_table (info); |
2839 | htab->got = s = bfd_get_section_by_name (abfd, ".got"); | |
2840 | if (s == NULL) | |
2841 | abort (); | |
3dab13f6 | 2842 | |
9d8504b1 PB |
2843 | if (htab->is_vxworks) |
2844 | { | |
2845 | htab->sgotplt = bfd_get_section_by_name (abfd, ".got.plt"); | |
2846 | if (!htab->sgotplt) | |
2847 | abort (); | |
2848 | } | |
2849 | else | |
2850 | { | |
2851 | /* The powerpc .got has a blrl instruction in it. Mark it | |
2852 | executable. */ | |
2853 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | |
2854 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
2855 | if (!bfd_set_section_flags (abfd, s, flags)) | |
2856 | return FALSE; | |
2857 | } | |
3dab13f6 | 2858 | |
3b36f7e6 AM |
2859 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
2860 | | SEC_LINKER_CREATED | SEC_READONLY); | |
2861 | htab->relgot = bfd_make_section_with_flags (abfd, ".rela.got", flags); | |
25dbc73a | 2862 | if (!htab->relgot |
25dbc73a AM |
2863 | || ! bfd_set_section_alignment (abfd, htab->relgot, 2)) |
2864 | return FALSE; | |
3dab13f6 | 2865 | |
25dbc73a AM |
2866 | return TRUE; |
2867 | } | |
3dab13f6 | 2868 | |
25dbc73a AM |
2869 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
2870 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
2871 | to create .dynbss and .rela.bss). */ | |
3dab13f6 | 2872 | |
25dbc73a AM |
2873 | static bfd_boolean |
2874 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
2875 | { | |
2876 | struct ppc_elf_link_hash_table *htab; | |
2877 | asection *s; | |
2878 | flagword flags; | |
3dab13f6 | 2879 | |
25dbc73a | 2880 | htab = ppc_elf_hash_table (info); |
3dab13f6 | 2881 | |
25dbc73a AM |
2882 | if (htab->got == NULL |
2883 | && !ppc_elf_create_got (abfd, info)) | |
3dab13f6 AM |
2884 | return FALSE; |
2885 | ||
25dbc73a AM |
2886 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
2887 | return FALSE; | |
3dab13f6 | 2888 | |
d7128ce4 AM |
2889 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS |
2890 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
2891 | ||
2892 | s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags | SEC_CODE); | |
2893 | htab->glink = s; | |
2894 | if (s == NULL | |
2895 | || !bfd_set_section_alignment (abfd, s, 4)) | |
2896 | return FALSE; | |
3dab13f6 | 2897 | |
25dbc73a | 2898 | htab->dynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
3b36f7e6 AM |
2899 | s = bfd_make_section_with_flags (abfd, ".dynsbss", |
2900 | SEC_ALLOC | SEC_LINKER_CREATED); | |
2901 | htab->dynsbss = s; | |
3496cb2a | 2902 | if (s == NULL) |
25dbc73a | 2903 | return FALSE; |
3dab13f6 | 2904 | |
25dbc73a AM |
2905 | if (! info->shared) |
2906 | { | |
2907 | htab->relbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
d7128ce4 | 2908 | s = bfd_make_section_with_flags (abfd, ".rela.sbss", flags); |
3b36f7e6 | 2909 | htab->relsbss = s; |
25dbc73a | 2910 | if (s == NULL |
25dbc73a AM |
2911 | || ! bfd_set_section_alignment (abfd, s, 2)) |
2912 | return FALSE; | |
2913 | } | |
3dab13f6 | 2914 | |
711de32c RS |
2915 | if (htab->is_vxworks |
2916 | && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
2917 | return FALSE; | |
9d8504b1 | 2918 | |
25dbc73a AM |
2919 | htab->relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
2920 | htab->plt = s = bfd_get_section_by_name (abfd, ".plt"); | |
2921 | if (s == NULL) | |
2922 | abort (); | |
3dab13f6 | 2923 | |
3b36f7e6 | 2924 | flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; |
4a3dc543 RS |
2925 | if (htab->plt_type == PLT_VXWORKS) |
2926 | /* The VxWorks PLT is a loaded section with contents. */ | |
2927 | flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; | |
25dbc73a AM |
2928 | return bfd_set_section_flags (abfd, s, flags); |
2929 | } | |
3dab13f6 | 2930 | |
25dbc73a | 2931 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
58111eb7 | 2932 | |
25dbc73a | 2933 | static void |
fcfa13d2 | 2934 | ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
25dbc73a AM |
2935 | struct elf_link_hash_entry *dir, |
2936 | struct elf_link_hash_entry *ind) | |
2937 | { | |
2938 | struct ppc_elf_link_hash_entry *edir, *eind; | |
3dab13f6 | 2939 | |
25dbc73a AM |
2940 | edir = (struct ppc_elf_link_hash_entry *) dir; |
2941 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
3dab13f6 | 2942 | |
25dbc73a AM |
2943 | if (eind->dyn_relocs != NULL) |
2944 | { | |
2945 | if (edir->dyn_relocs != NULL) | |
3dab13f6 | 2946 | { |
25dbc73a AM |
2947 | struct ppc_elf_dyn_relocs **pp; |
2948 | struct ppc_elf_dyn_relocs *p; | |
3dab13f6 | 2949 | |
fcfa13d2 | 2950 | /* Add reloc counts against the indirect sym to the direct sym |
25dbc73a AM |
2951 | list. Merge any entries against the same section. */ |
2952 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3dab13f6 | 2953 | { |
25dbc73a AM |
2954 | struct ppc_elf_dyn_relocs *q; |
2955 | ||
2956 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2957 | if (q->sec == p->sec) | |
2958 | { | |
2959 | q->pc_count += p->pc_count; | |
2960 | q->count += p->count; | |
2961 | *pp = p->next; | |
2962 | break; | |
2963 | } | |
2964 | if (q == NULL) | |
2965 | pp = &p->next; | |
3dab13f6 | 2966 | } |
25dbc73a | 2967 | *pp = edir->dyn_relocs; |
3dab13f6 | 2968 | } |
25dbc73a AM |
2969 | |
2970 | edir->dyn_relocs = eind->dyn_relocs; | |
2971 | eind->dyn_relocs = NULL; | |
3dab13f6 | 2972 | } |
3dab13f6 | 2973 | |
25dbc73a | 2974 | edir->tls_mask |= eind->tls_mask; |
4dc4a9a5 | 2975 | edir->has_sda_refs |= eind->has_sda_refs; |
3dab13f6 | 2976 | |
a6aa5195 AM |
2977 | /* If called to transfer flags for a weakdef during processing |
2978 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
2979 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
2980 | if (!(ELIMINATE_COPY_RELOCS | |
2981 | && eind->elf.root.type != bfd_link_hash_indirect | |
2982 | && edir->elf.dynamic_adjusted)) | |
2983 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
2984 | ||
2985 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
2986 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
2987 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
2988 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
0eb4a168 | 2989 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; |
a6aa5195 AM |
2990 | |
2991 | /* If we were called to copy over info for a weak sym, that's all. */ | |
2992 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
2993 | return; | |
2994 | ||
2995 | /* Copy over the GOT refcount entries that we may have already seen to | |
2996 | the symbol which just became indirect. */ | |
fcfa13d2 AM |
2997 | edir->elf.got.refcount += eind->elf.got.refcount; |
2998 | eind->elf.got.refcount = 0; | |
a6aa5195 AM |
2999 | |
3000 | /* And plt entries. */ | |
3001 | if (eind->elf.plt.plist != NULL) | |
3002 | { | |
3003 | if (edir->elf.plt.plist != NULL) | |
3004 | { | |
3005 | struct plt_entry **entp; | |
3006 | struct plt_entry *ent; | |
3007 | ||
3008 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3009 | { | |
3010 | struct plt_entry *dent; | |
3011 | ||
3012 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3013 | if (dent->sec == ent->sec && dent->addend == ent->addend) | |
3014 | { | |
3015 | dent->plt.refcount += ent->plt.refcount; | |
3016 | *entp = ent->next; | |
3017 | break; | |
3018 | } | |
3019 | if (dent == NULL) | |
3020 | entp = &ent->next; | |
3021 | } | |
3022 | *entp = edir->elf.plt.plist; | |
3023 | } | |
3024 | ||
3025 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3026 | eind->elf.plt.plist = NULL; | |
3027 | } | |
3028 | ||
fcfa13d2 | 3029 | if (eind->elf.dynindx != -1) |
25dbc73a | 3030 | { |
fcfa13d2 AM |
3031 | if (edir->elf.dynindx != -1) |
3032 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3033 | edir->elf.dynstr_index); | |
a6aa5195 AM |
3034 | edir->elf.dynindx = eind->elf.dynindx; |
3035 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3036 | eind->elf.dynindx = -1; | |
3037 | eind->elf.dynstr_index = 0; | |
25dbc73a | 3038 | } |
25dbc73a | 3039 | } |
3dab13f6 | 3040 | |
25dbc73a AM |
3041 | /* Hook called by the linker routine which adds symbols from an object |
3042 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
58111eb7 | 3043 | |
25dbc73a AM |
3044 | static bfd_boolean |
3045 | ppc_elf_add_symbol_hook (bfd *abfd, | |
3046 | struct bfd_link_info *info, | |
3047 | Elf_Internal_Sym *sym, | |
3048 | const char **namep ATTRIBUTE_UNUSED, | |
3049 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3050 | asection **secp, | |
3051 | bfd_vma *valp) | |
3052 | { | |
3053 | if (sym->st_shndx == SHN_COMMON | |
3054 | && !info->relocatable | |
0c8d6e5c AM |
3055 | && is_ppc_elf (info->output_bfd) |
3056 | && sym->st_size <= elf_gp_size (abfd)) | |
25dbc73a AM |
3057 | { |
3058 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3059 | put into .sbss. */ | |
3060 | struct ppc_elf_link_hash_table *htab; | |
3dab13f6 | 3061 | |
25dbc73a AM |
3062 | htab = ppc_elf_hash_table (info); |
3063 | if (htab->sbss == NULL) | |
3064 | { | |
644285ef | 3065 | flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; |
3dab13f6 | 3066 | |
644285ef AM |
3067 | if (!htab->elf.dynobj) |
3068 | htab->elf.dynobj = abfd; | |
3069 | ||
3496cb2a L |
3070 | htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3071 | ".sbss", | |
3072 | flags); | |
3073 | if (htab->sbss == NULL) | |
25dbc73a | 3074 | return FALSE; |
3dab13f6 | 3075 | } |
3dab13f6 | 3076 | |
25dbc73a AM |
3077 | *secp = htab->sbss; |
3078 | *valp = sym->st_size; | |
3079 | } | |
3dab13f6 | 3080 | |
25dbc73a | 3081 | return TRUE; |
3dab13f6 AM |
3082 | } |
3083 | \f | |
046183de AM |
3084 | static bfd_boolean |
3085 | create_sdata_sym (struct ppc_elf_link_hash_table *htab, | |
3086 | elf_linker_section_t *lsect) | |
3087 | { | |
3088 | lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name, | |
3089 | TRUE, FALSE, TRUE); | |
3090 | if (lsect->sym == NULL) | |
3091 | return FALSE; | |
3092 | if (lsect->sym->root.type == bfd_link_hash_new) | |
3093 | lsect->sym->non_elf = 0; | |
3094 | lsect->sym->ref_regular = 1; | |
3095 | return TRUE; | |
3096 | } | |
3097 | ||
c9a2f333 | 3098 | /* Create a special linker section. */ |
25dbc73a | 3099 | |
c9a2f333 | 3100 | static bfd_boolean |
55fd94b0 AM |
3101 | ppc_elf_create_linker_section (bfd *abfd, |
3102 | struct bfd_link_info *info, | |
c9a2f333 AM |
3103 | flagword flags, |
3104 | elf_linker_section_t *lsect) | |
252b5132 | 3105 | { |
58111eb7 | 3106 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
c9a2f333 | 3107 | asection *s; |
58111eb7 | 3108 | |
c9a2f333 AM |
3109 | flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
3110 | | SEC_LINKER_CREATED); | |
58111eb7 AM |
3111 | |
3112 | /* Record the first bfd that needs the special sections. */ | |
3113 | if (!htab->elf.dynobj) | |
3114 | htab->elf.dynobj = abfd; | |
3115 | ||
3496cb2a L |
3116 | s = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3117 | lsect->name, | |
3118 | flags); | |
76750a2f | 3119 | if (s == NULL |
76750a2f | 3120 | || !bfd_set_section_alignment (htab->elf.dynobj, s, 2)) |
c9a2f333 | 3121 | return FALSE; |
76750a2f | 3122 | lsect->section = s; |
58111eb7 | 3123 | |
046183de | 3124 | return create_sdata_sym (htab, lsect); |
252b5132 | 3125 | } |
252b5132 | 3126 | |
25dbc73a AM |
3127 | /* Find a linker generated pointer with a given addend and type. */ |
3128 | ||
3129 | static elf_linker_section_pointers_t * | |
3130 | elf_find_pointer_linker_section | |
3131 | (elf_linker_section_pointers_t *linker_pointers, | |
3132 | bfd_vma addend, | |
3133 | elf_linker_section_t *lsect) | |
252b5132 | 3134 | { |
25dbc73a AM |
3135 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) |
3136 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) | |
3137 | return linker_pointers; | |
252b5132 | 3138 | |
25dbc73a AM |
3139 | return NULL; |
3140 | } | |
3141 | ||
3142 | /* Allocate a pointer to live in a linker created section. */ | |
3143 | ||
3144 | static bfd_boolean | |
3145 | elf_create_pointer_linker_section (bfd *abfd, | |
25dbc73a AM |
3146 | elf_linker_section_t *lsect, |
3147 | struct elf_link_hash_entry *h, | |
3148 | const Elf_Internal_Rela *rel) | |
3149 | { | |
3150 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
3151 | elf_linker_section_pointers_t *linker_section_ptr; | |
3152 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
3153 | bfd_size_type amt; | |
3154 | ||
3155 | BFD_ASSERT (lsect != NULL); | |
3156 | ||
3157 | /* Is this a global symbol? */ | |
3158 | if (h != NULL) | |
3159 | { | |
3160 | struct ppc_elf_link_hash_entry *eh; | |
3161 | ||
3162 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3163 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3164 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3165 | rel->r_addend, | |
3166 | lsect)) | |
3167 | return TRUE; | |
3168 | ||
3169 | ptr_linker_section_ptr = &eh->linker_section_pointer; | |
25dbc73a AM |
3170 | } |
3171 | else | |
3172 | { | |
0c8d6e5c | 3173 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3174 | |
25dbc73a AM |
3175 | /* Allocation of a pointer to a local symbol. */ |
3176 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
3177 | ||
3178 | /* Allocate a table to hold the local symbols if first time. */ | |
3179 | if (!ptr) | |
3180 | { | |
0ffa91dd | 3181 | unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; |
25dbc73a AM |
3182 | |
3183 | amt = num_symbols; | |
3184 | amt *= sizeof (elf_linker_section_pointers_t *); | |
3185 | ptr = bfd_zalloc (abfd, amt); | |
3186 | ||
3187 | if (!ptr) | |
3188 | return FALSE; | |
3189 | ||
3190 | elf_local_ptr_offsets (abfd) = ptr; | |
3191 | } | |
3192 | ||
3193 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3194 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
3195 | rel->r_addend, | |
3196 | lsect)) | |
3197 | return TRUE; | |
252b5132 | 3198 | |
25dbc73a | 3199 | ptr_linker_section_ptr = &ptr[r_symndx]; |
25dbc73a | 3200 | } |
41fcb14e | 3201 | |
25dbc73a AM |
3202 | /* Allocate space for a pointer in the linker section, and allocate |
3203 | a new pointer record from internal memory. */ | |
3204 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
3205 | amt = sizeof (elf_linker_section_pointers_t); | |
3206 | linker_section_ptr = bfd_alloc (abfd, amt); | |
41fcb14e | 3207 | |
25dbc73a | 3208 | if (!linker_section_ptr) |
7619e7c7 | 3209 | return FALSE; |
41fcb14e | 3210 | |
25dbc73a AM |
3211 | linker_section_ptr->next = *ptr_linker_section_ptr; |
3212 | linker_section_ptr->addend = rel->r_addend; | |
3213 | linker_section_ptr->lsect = lsect; | |
25dbc73a | 3214 | *ptr_linker_section_ptr = linker_section_ptr; |
41fcb14e | 3215 | |
25dbc73a AM |
3216 | linker_section_ptr->offset = lsect->section->size; |
3217 | lsect->section->size += 4; | |
7619e7c7 | 3218 | |
25dbc73a AM |
3219 | #ifdef DEBUG |
3220 | fprintf (stderr, | |
3221 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
3222 | lsect->name, (long) linker_section_ptr->offset, | |
3223 | (long) lsect->section->size); | |
3224 | #endif | |
7619e7c7 AM |
3225 | |
3226 | return TRUE; | |
41fcb14e AM |
3227 | } |
3228 | ||
b34976b6 | 3229 | static bfd_boolean |
25dbc73a AM |
3230 | update_local_sym_info (bfd *abfd, |
3231 | Elf_Internal_Shdr *symtab_hdr, | |
3232 | unsigned long r_symndx, | |
3233 | int tls_type) | |
252b5132 | 3234 | { |
25dbc73a AM |
3235 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); |
3236 | char *local_got_tls_masks; | |
252b5132 | 3237 | |
25dbc73a | 3238 | if (local_got_refcounts == NULL) |
252b5132 | 3239 | { |
25dbc73a AM |
3240 | bfd_size_type size = symtab_hdr->sh_info; |
3241 | ||
3242 | size *= sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks); | |
3243 | local_got_refcounts = bfd_zalloc (abfd, size); | |
3244 | if (local_got_refcounts == NULL) | |
b34976b6 | 3245 | return FALSE; |
25dbc73a | 3246 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 3247 | } |
41fcb14e | 3248 | |
25dbc73a AM |
3249 | local_got_refcounts[r_symndx] += 1; |
3250 | local_got_tls_masks = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
3251 | local_got_tls_masks[r_symndx] |= tls_type; | |
3252 | return TRUE; | |
3253 | } | |
41fcb14e | 3254 | |
a6aa5195 AM |
3255 | static bfd_boolean |
3256 | update_plt_info (bfd *abfd, struct elf_link_hash_entry *h, | |
3257 | asection *sec, bfd_vma addend) | |
3258 | { | |
3259 | struct plt_entry *ent; | |
3260 | ||
3261 | if (addend < 32768) | |
3262 | sec = NULL; | |
3263 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
3264 | if (ent->sec == sec && ent->addend == addend) | |
3265 | break; | |
3266 | if (ent == NULL) | |
3267 | { | |
3268 | bfd_size_type amt = sizeof (*ent); | |
3269 | ent = bfd_alloc (abfd, amt); | |
3270 | if (ent == NULL) | |
3271 | return FALSE; | |
3272 | ent->next = h->plt.plist; | |
3273 | ent->sec = sec; | |
3274 | ent->addend = addend; | |
3275 | ent->plt.refcount = 0; | |
3276 | h->plt.plist = ent; | |
3277 | } | |
3278 | ent->plt.refcount += 1; | |
3279 | return TRUE; | |
3280 | } | |
3281 | ||
3282 | static struct plt_entry * | |
3283 | find_plt_ent (struct elf_link_hash_entry *h, asection *sec, bfd_vma addend) | |
3284 | { | |
3285 | struct plt_entry *ent; | |
3286 | ||
3287 | if (addend < 32768) | |
3288 | sec = NULL; | |
3289 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
3290 | if (ent->sec == sec && ent->addend == addend) | |
3291 | break; | |
3292 | return ent; | |
3293 | } | |
3294 | ||
25dbc73a AM |
3295 | static void |
3296 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) | |
3297 | { | |
3298 | (*_bfd_error_handler) | |
3299 | (_("%B: relocation %s cannot be used when making a shared object"), | |
3300 | abfd, | |
3301 | ppc_elf_howto_table[r_type]->name); | |
3302 | bfd_set_error (bfd_error_bad_value); | |
252b5132 RH |
3303 | } |
3304 | ||
25dbc73a AM |
3305 | /* Look through the relocs for a section during the first phase, and |
3306 | allocate space in the global offset table or procedure linkage | |
3307 | table. */ | |
252b5132 | 3308 | |
b34976b6 | 3309 | static bfd_boolean |
25dbc73a AM |
3310 | ppc_elf_check_relocs (bfd *abfd, |
3311 | struct bfd_link_info *info, | |
3312 | asection *sec, | |
3313 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3314 | { |
7619e7c7 | 3315 | struct ppc_elf_link_hash_table *htab; |
25dbc73a AM |
3316 | Elf_Internal_Shdr *symtab_hdr; |
3317 | struct elf_link_hash_entry **sym_hashes; | |
3318 | const Elf_Internal_Rela *rel; | |
3319 | const Elf_Internal_Rela *rel_end; | |
a6aa5195 | 3320 | asection *got2, *sreloc; |
727fc41e | 3321 | struct elf_link_hash_entry *tga; |
25dbc73a AM |
3322 | |
3323 | if (info->relocatable) | |
3324 | return TRUE; | |
252b5132 | 3325 | |
c87b5a93 AM |
3326 | /* Don't do anything special with non-loaded, non-alloced sections. |
3327 | In particular, any relocs in such sections should not affect GOT | |
3328 | and PLT reference counting (ie. we don't allow them to create GOT | |
3329 | or PLT entries), there's no possibility or desire to optimize TLS | |
3330 | relocs, and there's not much point in propagating relocs to shared | |
3331 | libs that the dynamic linker won't relocate. */ | |
3332 | if ((sec->flags & SEC_ALLOC) == 0) | |
3333 | return TRUE; | |
3334 | ||
252b5132 | 3335 | #ifdef DEBUG |
25dbc73a AM |
3336 | _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", |
3337 | sec, abfd); | |
252b5132 RH |
3338 | #endif |
3339 | ||
0c8d6e5c | 3340 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3341 | |
25dbc73a AM |
3342 | /* Initialize howto table if not already done. */ |
3343 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
3344 | ppc_elf_howto_init (); | |
3345 | ||
7619e7c7 | 3346 | htab = ppc_elf_hash_table (info); |
727fc41e AM |
3347 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
3348 | FALSE, FALSE, TRUE); | |
0ffa91dd | 3349 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a | 3350 | sym_hashes = elf_sym_hashes (abfd); |
a6aa5195 | 3351 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
3352 | sreloc = NULL; |
3353 | ||
3354 | rel_end = relocs + sec->reloc_count; | |
3355 | for (rel = relocs; rel < rel_end; rel++) | |
3356 | { | |
3357 | unsigned long r_symndx; | |
3358 | enum elf_ppc_reloc_type r_type; | |
3359 | struct elf_link_hash_entry *h; | |
727fc41e | 3360 | int tls_type; |
25dbc73a AM |
3361 | |
3362 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3363 | if (r_symndx < symtab_hdr->sh_info) | |
3364 | h = NULL; | |
3365 | else | |
973a3492 L |
3366 | { |
3367 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3368 | while (h->root.type == bfd_link_hash_indirect | |
3369 | || h->root.type == bfd_link_hash_warning) | |
3370 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3371 | } | |
25dbc73a AM |
3372 | |
3373 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
3374 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
3375 | startup code. */ | |
3b36f7e6 AM |
3376 | if (h != NULL |
3377 | && htab->got == NULL | |
3378 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 3379 | { |
3b36f7e6 AM |
3380 | if (htab->elf.dynobj == NULL) |
3381 | htab->elf.dynobj = abfd; | |
3382 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
3383 | return FALSE; | |
3384 | BFD_ASSERT (h == htab->elf.hgot); | |
25dbc73a | 3385 | } |
252b5132 | 3386 | |
727fc41e | 3387 | tls_type = 0; |
25dbc73a | 3388 | r_type = ELF32_R_TYPE (rel->r_info); |
727fc41e AM |
3389 | if (h != NULL && h == tga) |
3390 | switch (r_type) | |
3391 | { | |
3392 | default: | |
3393 | break; | |
3394 | ||
3395 | case R_PPC_PLTREL24: | |
3396 | case R_PPC_LOCAL24PC: | |
3397 | case R_PPC_REL24: | |
3398 | case R_PPC_REL14: | |
3399 | case R_PPC_REL14_BRTAKEN: | |
3400 | case R_PPC_REL14_BRNTAKEN: | |
3401 | case R_PPC_ADDR24: | |
3402 | case R_PPC_ADDR14: | |
3403 | case R_PPC_ADDR14_BRTAKEN: | |
3404 | case R_PPC_ADDR14_BRNTAKEN: | |
3405 | if (rel != relocs | |
3406 | && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD | |
3407 | || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) | |
3408 | /* We have a new-style __tls_get_addr call with a marker | |
3409 | reloc. */ | |
3410 | ; | |
3411 | else | |
3412 | /* Mark this section as having an old-style call. */ | |
3413 | sec->has_tls_get_addr_call = 1; | |
3414 | break; | |
3415 | } | |
3416 | ||
25dbc73a AM |
3417 | switch (r_type) |
3418 | { | |
727fc41e AM |
3419 | case R_PPC_TLSGD: |
3420 | case R_PPC_TLSLD: | |
3421 | /* These special tls relocs tie a call to __tls_get_addr with | |
3422 | its parameter symbol. */ | |
3423 | break; | |
3424 | ||
25dbc73a AM |
3425 | case R_PPC_GOT_TLSLD16: |
3426 | case R_PPC_GOT_TLSLD16_LO: | |
3427 | case R_PPC_GOT_TLSLD16_HI: | |
3428 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
3429 | tls_type = TLS_TLS | TLS_LD; |
3430 | goto dogottls; | |
252b5132 | 3431 | |
25dbc73a AM |
3432 | case R_PPC_GOT_TLSGD16: |
3433 | case R_PPC_GOT_TLSGD16_LO: | |
3434 | case R_PPC_GOT_TLSGD16_HI: | |
3435 | case R_PPC_GOT_TLSGD16_HA: | |
3436 | tls_type = TLS_TLS | TLS_GD; | |
3437 | goto dogottls; | |
3438 | ||
3439 | case R_PPC_GOT_TPREL16: | |
3440 | case R_PPC_GOT_TPREL16_LO: | |
3441 | case R_PPC_GOT_TPREL16_HI: | |
3442 | case R_PPC_GOT_TPREL16_HA: | |
1d483afe | 3443 | if (!info->executable) |
25dbc73a AM |
3444 | info->flags |= DF_STATIC_TLS; |
3445 | tls_type = TLS_TLS | TLS_TPREL; | |
3446 | goto dogottls; | |
3447 | ||
3448 | case R_PPC_GOT_DTPREL16: | |
3449 | case R_PPC_GOT_DTPREL16_LO: | |
3450 | case R_PPC_GOT_DTPREL16_HI: | |
3451 | case R_PPC_GOT_DTPREL16_HA: | |
3452 | tls_type = TLS_TLS | TLS_DTPREL; | |
3453 | dogottls: | |
3454 | sec->has_tls_reloc = 1; | |
3455 | /* Fall thru */ | |
252b5132 | 3456 | |
25dbc73a AM |
3457 | /* GOT16 relocations */ |
3458 | case R_PPC_GOT16: | |
3459 | case R_PPC_GOT16_LO: | |
3460 | case R_PPC_GOT16_HI: | |
3461 | case R_PPC_GOT16_HA: | |
3462 | /* This symbol requires a global offset table entry. */ | |
3463 | if (htab->got == NULL) | |
3464 | { | |
3465 | if (htab->elf.dynobj == NULL) | |
3466 | htab->elf.dynobj = abfd; | |
3467 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
3468 | return FALSE; | |
3469 | } | |
3470 | if (h != NULL) | |
3471 | { | |
3472 | h->got.refcount += 1; | |
3473 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
3474 | } | |
3475 | else | |
3476 | /* This is a global offset table entry for a local symbol. */ | |
3477 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
3478 | return FALSE; | |
3479 | break; | |
252b5132 | 3480 | |
25dbc73a AM |
3481 | /* Indirect .sdata relocation. */ |
3482 | case R_PPC_EMB_SDAI16: | |
3483 | if (info->shared) | |
3484 | { | |
3485 | bad_shared_reloc (abfd, r_type); | |
3486 | return FALSE; | |
3487 | } | |
c9a2f333 AM |
3488 | if (htab->sdata[0].section == NULL |
3489 | && !ppc_elf_create_linker_section (abfd, info, 0, | |
3490 | &htab->sdata[0])) | |
3491 | return FALSE; | |
76750a2f AM |
3492 | if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0], |
3493 | h, rel)) | |
25dbc73a | 3494 | return FALSE; |
046183de AM |
3495 | if (h != NULL) |
3496 | { | |
3497 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
3498 | h->non_got_ref = TRUE; | |
3499 | } | |
25dbc73a | 3500 | break; |
252b5132 | 3501 | |
25dbc73a AM |
3502 | /* Indirect .sdata2 relocation. */ |
3503 | case R_PPC_EMB_SDA2I16: | |
3504 | if (info->shared) | |
3505 | { | |
3506 | bad_shared_reloc (abfd, r_type); | |
3507 | return FALSE; | |
3508 | } | |
c9a2f333 AM |
3509 | if (htab->sdata[1].section == NULL |
3510 | && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY, | |
3511 | &htab->sdata[1])) | |
3512 | return FALSE; | |
76750a2f AM |
3513 | if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1], |
3514 | h, rel)) | |
25dbc73a | 3515 | return FALSE; |
046183de AM |
3516 | if (h != NULL) |
3517 | { | |
3518 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
3519 | h->non_got_ref = TRUE; | |
3520 | } | |
25dbc73a | 3521 | break; |
252b5132 | 3522 | |
25dbc73a | 3523 | case R_PPC_SDAREL16: |
046183de AM |
3524 | if (info->shared) |
3525 | { | |
3526 | bad_shared_reloc (abfd, r_type); | |
3527 | return FALSE; | |
3528 | } | |
3529 | if (htab->sdata[0].sym == NULL | |
3530 | && !create_sdata_sym (htab, &htab->sdata[0])) | |
3531 | return FALSE; | |
3532 | if (h != NULL) | |
3533 | { | |
3534 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
3535 | h->non_got_ref = TRUE; | |
3536 | } | |
3537 | break; | |
3538 | ||
25dbc73a | 3539 | case R_PPC_EMB_SDA2REL: |
046183de AM |
3540 | if (info->shared) |
3541 | { | |
3542 | bad_shared_reloc (abfd, r_type); | |
3543 | return FALSE; | |
3544 | } | |
3545 | if (htab->sdata[1].sym == NULL | |
3546 | && !create_sdata_sym (htab, &htab->sdata[1])) | |
3547 | return FALSE; | |
3548 | if (h != NULL) | |
3549 | { | |
3550 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
3551 | h->non_got_ref = TRUE; | |
3552 | } | |
3553 | break; | |
3554 | ||
25dbc73a AM |
3555 | case R_PPC_EMB_SDA21: |
3556 | case R_PPC_EMB_RELSDA: | |
046183de AM |
3557 | if (info->shared) |
3558 | { | |
3559 | bad_shared_reloc (abfd, r_type); | |
3560 | return FALSE; | |
3561 | } | |
3562 | if (htab->sdata[0].sym == NULL | |
3563 | && !create_sdata_sym (htab, &htab->sdata[0])) | |
3564 | return FALSE; | |
3565 | if (htab->sdata[1].sym == NULL | |
3566 | && !create_sdata_sym (htab, &htab->sdata[1])) | |
3567 | return FALSE; | |
3568 | if (h != NULL) | |
3569 | { | |
3570 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
3571 | h->non_got_ref = TRUE; | |
3572 | } | |
3573 | break; | |
3574 | ||
25dbc73a AM |
3575 | case R_PPC_EMB_NADDR32: |
3576 | case R_PPC_EMB_NADDR16: | |
3577 | case R_PPC_EMB_NADDR16_LO: | |
3578 | case R_PPC_EMB_NADDR16_HI: | |
3579 | case R_PPC_EMB_NADDR16_HA: | |
3580 | if (info->shared) | |
3581 | { | |
3582 | bad_shared_reloc (abfd, r_type); | |
3583 | return FALSE; | |
3584 | } | |
4dc4a9a5 | 3585 | if (h != NULL) |
046183de | 3586 | h->non_got_ref = TRUE; |
25dbc73a | 3587 | break; |
252b5132 | 3588 | |
25dbc73a AM |
3589 | case R_PPC_PLT32: |
3590 | case R_PPC_PLTREL24: | |
3591 | case R_PPC_PLTREL32: | |
3592 | case R_PPC_PLT16_LO: | |
3593 | case R_PPC_PLT16_HI: | |
3594 | case R_PPC_PLT16_HA: | |
3595 | #ifdef DEBUG | |
3596 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
3597 | #endif | |
3598 | /* This symbol requires a procedure linkage table entry. We | |
3599 | actually build the entry in finish_dynamic_symbol, | |
3600 | because this might be a case of linking PIC code without | |
3601 | linking in any dynamic objects, in which case we don't | |
3602 | need to generate a procedure linkage table after all. */ | |
7619e7c7 | 3603 | |
25dbc73a AM |
3604 | if (h == NULL) |
3605 | { | |
3606 | /* It does not make sense to have a procedure linkage | |
3607 | table entry for a local symbol. */ | |
3608 | (*_bfd_error_handler) (_("%B(%A+0x%lx): %s reloc against " | |
3609 | "local symbol"), | |
3610 | abfd, | |
3611 | sec, | |
3612 | (long) rel->r_offset, | |
3613 | ppc_elf_howto_table[r_type]->name); | |
3614 | bfd_set_error (bfd_error_bad_value); | |
3615 | return FALSE; | |
3616 | } | |
a6aa5195 AM |
3617 | else |
3618 | { | |
016687f8 | 3619 | bfd_vma addend = 0; |
ee05f2fe | 3620 | |
016687f8 AM |
3621 | if (r_type == R_PPC_PLTREL24) |
3622 | { | |
3623 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
3624 | addend = rel->r_addend; | |
3625 | } | |
a6aa5195 AM |
3626 | h->needs_plt = 1; |
3627 | if (!update_plt_info (abfd, h, got2, addend)) | |
3628 | return FALSE; | |
3629 | } | |
25dbc73a | 3630 | break; |
ee05f2fe | 3631 | |
25dbc73a AM |
3632 | /* The following relocations don't need to propagate the |
3633 | relocation if linking a shared object since they are | |
3634 | section relative. */ | |
3635 | case R_PPC_SECTOFF: | |
3636 | case R_PPC_SECTOFF_LO: | |
3637 | case R_PPC_SECTOFF_HI: | |
3638 | case R_PPC_SECTOFF_HA: | |
3639 | case R_PPC_DTPREL16: | |
3640 | case R_PPC_DTPREL16_LO: | |
3641 | case R_PPC_DTPREL16_HI: | |
3642 | case R_PPC_DTPREL16_HA: | |
3643 | case R_PPC_TOC16: | |
3644 | break; | |
252b5132 | 3645 | |
d7128ce4 AM |
3646 | case R_PPC_REL16: |
3647 | case R_PPC_REL16_LO: | |
3648 | case R_PPC_REL16_HI: | |
3649 | case R_PPC_REL16_HA: | |
016687f8 | 3650 | ppc_elf_tdata (abfd)->has_rel16 = 1; |
d7128ce4 AM |
3651 | break; |
3652 | ||
a6aa5195 | 3653 | /* These are just markers. */ |
25dbc73a AM |
3654 | case R_PPC_TLS: |
3655 | case R_PPC_EMB_MRKREF: | |
3656 | case R_PPC_NONE: | |
3657 | case R_PPC_max: | |
3658 | break; | |
252b5132 | 3659 | |
25dbc73a AM |
3660 | /* These should only appear in dynamic objects. */ |
3661 | case R_PPC_COPY: | |
3662 | case R_PPC_GLOB_DAT: | |
3663 | case R_PPC_JMP_SLOT: | |
3664 | case R_PPC_RELATIVE: | |
3665 | break; | |
252b5132 | 3666 | |
25dbc73a AM |
3667 | /* These aren't handled yet. We'll report an error later. */ |
3668 | case R_PPC_ADDR30: | |
3669 | case R_PPC_EMB_RELSEC16: | |
3670 | case R_PPC_EMB_RELST_LO: | |
3671 | case R_PPC_EMB_RELST_HI: | |
3672 | case R_PPC_EMB_RELST_HA: | |
3673 | case R_PPC_EMB_BIT_FLD: | |
3674 | break; | |
252b5132 | 3675 | |
25dbc73a AM |
3676 | /* This refers only to functions defined in the shared library. */ |
3677 | case R_PPC_LOCAL24PC: | |
727fc41e | 3678 | if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) |
016687f8 AM |
3679 | { |
3680 | htab->plt_type = PLT_OLD; | |
3681 | htab->old_bfd = abfd; | |
3682 | } | |
25dbc73a | 3683 | break; |
252b5132 | 3684 | |
25dbc73a AM |
3685 | /* This relocation describes the C++ object vtable hierarchy. |
3686 | Reconstruct it for later use during GC. */ | |
3687 | case R_PPC_GNU_VTINHERIT: | |
3688 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
3689 | return FALSE; | |
3690 | break; | |
252b5132 | 3691 | |
25dbc73a AM |
3692 | /* This relocation describes which C++ vtable entries are actually |
3693 | used. Record for later use during GC. */ | |
3694 | case R_PPC_GNU_VTENTRY: | |
d17e0c6e JB |
3695 | BFD_ASSERT (h != NULL); |
3696 | if (h != NULL | |
3697 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
25dbc73a AM |
3698 | return FALSE; |
3699 | break; | |
252b5132 | 3700 | |
25dbc73a AM |
3701 | /* We shouldn't really be seeing these. */ |
3702 | case R_PPC_TPREL32: | |
1d483afe AM |
3703 | case R_PPC_TPREL16: |
3704 | case R_PPC_TPREL16_LO: | |
3705 | case R_PPC_TPREL16_HI: | |
3706 | case R_PPC_TPREL16_HA: | |
3707 | if (!info->executable) | |
25dbc73a AM |
3708 | info->flags |= DF_STATIC_TLS; |
3709 | goto dodyn; | |
252b5132 | 3710 | |
25dbc73a AM |
3711 | /* Nor these. */ |
3712 | case R_PPC_DTPMOD32: | |
3713 | case R_PPC_DTPREL32: | |
3714 | goto dodyn; | |
252b5132 | 3715 | |
9edfd1af AM |
3716 | case R_PPC_REL32: |
3717 | if (h == NULL | |
3718 | && got2 != NULL | |
3719 | && (sec->flags & SEC_CODE) != 0 | |
3720 | && (info->shared || info->pie) | |
4a3dc543 | 3721 | && htab->plt_type == PLT_UNSET) |
9edfd1af AM |
3722 | { |
3723 | /* Old -fPIC gcc code has .long LCTOC1-LCFx just before | |
3724 | the start of a function, which assembles to a REL32 | |
3725 | reference to .got2. If we detect one of these, then | |
3726 | force the old PLT layout because the linker cannot | |
3727 | reliably deduce the GOT pointer value needed for | |
3728 | PLT call stubs. */ | |
3729 | asection *s; | |
3730 | ||
3731 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec, | |
3732 | r_symndx); | |
3733 | if (s == got2) | |
016687f8 AM |
3734 | { |
3735 | htab->plt_type = PLT_OLD; | |
3736 | htab->old_bfd = abfd; | |
3737 | } | |
9edfd1af | 3738 | } |
7123df0e | 3739 | if (h == NULL || h == htab->elf.hgot) |
fd38b44c | 3740 | break; |
625af618 AM |
3741 | /* fall through */ |
3742 | ||
3743 | case R_PPC_ADDR32: | |
3744 | case R_PPC_ADDR16: | |
3745 | case R_PPC_ADDR16_LO: | |
3746 | case R_PPC_ADDR16_HI: | |
3747 | case R_PPC_ADDR16_HA: | |
3748 | case R_PPC_UADDR32: | |
3749 | case R_PPC_UADDR16: | |
3750 | if (h != NULL && !info->shared) | |
3751 | { | |
3752 | /* We may need a plt entry if the symbol turns out to be | |
3753 | a function defined in a dynamic object. */ | |
3754 | if (!update_plt_info (abfd, h, NULL, 0)) | |
3755 | return FALSE; | |
3756 | ||
3757 | /* We may need a copy reloc too. */ | |
3758 | h->non_got_ref = 1; | |
3759 | h->pointer_equality_needed = 1; | |
3760 | } | |
3761 | goto dodyn; | |
9edfd1af | 3762 | |
25dbc73a AM |
3763 | case R_PPC_REL24: |
3764 | case R_PPC_REL14: | |
3765 | case R_PPC_REL14_BRTAKEN: | |
3766 | case R_PPC_REL14_BRNTAKEN: | |
d7128ce4 | 3767 | if (h == NULL) |
25dbc73a | 3768 | break; |
7123df0e | 3769 | if (h == htab->elf.hgot) |
d7128ce4 | 3770 | { |
7123df0e | 3771 | if (htab->plt_type == PLT_UNSET) |
016687f8 AM |
3772 | { |
3773 | htab->plt_type = PLT_OLD; | |
3774 | htab->old_bfd = abfd; | |
3775 | } | |
d7128ce4 AM |
3776 | break; |
3777 | } | |
25dbc73a | 3778 | /* fall through */ |
ee05f2fe | 3779 | |
25dbc73a | 3780 | case R_PPC_ADDR24: |
25dbc73a AM |
3781 | case R_PPC_ADDR14: |
3782 | case R_PPC_ADDR14_BRTAKEN: | |
3783 | case R_PPC_ADDR14_BRNTAKEN: | |
25dbc73a AM |
3784 | if (h != NULL && !info->shared) |
3785 | { | |
3786 | /* We may need a plt entry if the symbol turns out to be | |
3787 | a function defined in a dynamic object. */ | |
a6aa5195 AM |
3788 | if (!update_plt_info (abfd, h, NULL, 0)) |
3789 | return FALSE; | |
625af618 | 3790 | break; |
25dbc73a | 3791 | } |
7619e7c7 | 3792 | |
25dbc73a AM |
3793 | dodyn: |
3794 | /* If we are creating a shared library, and this is a reloc | |
3795 | against a global symbol, or a non PC relative reloc | |
3796 | against a local symbol, then we need to copy the reloc | |
3797 | into the shared library. However, if we are linking with | |
3798 | -Bsymbolic, we do not need to copy a reloc against a | |
3799 | global symbol which is defined in an object we are | |
3800 | including in the link (i.e., DEF_REGULAR is set). At | |
3801 | this point we have not seen all the input files, so it is | |
3802 | possible that DEF_REGULAR is not set now but will be set | |
3803 | later (it is never cleared). In case of a weak definition, | |
3804 | DEF_REGULAR may be cleared later by a strong definition in | |
3805 | a shared library. We account for that possibility below by | |
3806 | storing information in the dyn_relocs field of the hash | |
3807 | table entry. A similar situation occurs when creating | |
3808 | shared libraries and symbol visibility changes render the | |
3809 | symbol local. | |
7619e7c7 | 3810 | |
25dbc73a AM |
3811 | If on the other hand, we are creating an executable, we |
3812 | may need to keep relocations for symbols satisfied by a | |
3813 | dynamic library if we manage to avoid copy relocs for the | |
3814 | symbol. */ | |
3815 | if ((info->shared | |
1d483afe | 3816 | && (must_be_dyn_reloc (info, r_type) |
25dbc73a AM |
3817 | || (h != NULL |
3818 | && (! info->symbolic | |
3819 | || h->root.type == bfd_link_hash_defweak | |
3820 | || !h->def_regular)))) | |
3821 | || (ELIMINATE_COPY_RELOCS | |
3822 | && !info->shared | |
25dbc73a AM |
3823 | && h != NULL |
3824 | && (h->root.type == bfd_link_hash_defweak | |
3825 | || !h->def_regular))) | |
3826 | { | |
3827 | struct ppc_elf_dyn_relocs *p; | |
3828 | struct ppc_elf_dyn_relocs **head; | |
7619e7c7 | 3829 | |
25dbc73a AM |
3830 | #ifdef DEBUG |
3831 | fprintf (stderr, | |
3832 | "ppc_elf_check_relocs needs to " | |
3833 | "create relocation for %s\n", | |
3834 | (h && h->root.root.string | |
3835 | ? h->root.root.string : "<unknown>")); | |
3836 | #endif | |
3837 | if (sreloc == NULL) | |
3838 | { | |
c9a2f333 AM |
3839 | if (htab->elf.dynobj == NULL) |
3840 | htab->elf.dynobj = abfd; | |
83bac4b0 NC |
3841 | |
3842 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
3843 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
3844 | ||
25dbc73a | 3845 | if (sreloc == NULL) |
83bac4b0 | 3846 | return FALSE; |
25dbc73a | 3847 | } |
7619e7c7 | 3848 | |
25dbc73a AM |
3849 | /* If this is a global symbol, we count the number of |
3850 | relocations we need for this symbol. */ | |
3851 | if (h != NULL) | |
3852 | { | |
3853 | head = &ppc_elf_hash_entry (h)->dyn_relocs; | |
3854 | } | |
3855 | else | |
3856 | { | |
3857 | /* Track dynamic relocs needed for local syms too. | |
3858 | We really need local syms available to do this | |
3859 | easily. Oh well. */ | |
7619e7c7 | 3860 | |
25dbc73a | 3861 | asection *s; |
6edfbbad DJ |
3862 | void *vpp; |
3863 | ||
25dbc73a AM |
3864 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
3865 | sec, r_symndx); | |
3866 | if (s == NULL) | |
3867 | return FALSE; | |
7fce784e | 3868 | |
6edfbbad DJ |
3869 | vpp = &elf_section_data (s)->local_dynrel; |
3870 | head = (struct ppc_elf_dyn_relocs **) vpp; | |
25dbc73a | 3871 | } |
7fce784e | 3872 | |
25dbc73a AM |
3873 | p = *head; |
3874 | if (p == NULL || p->sec != sec) | |
3875 | { | |
3876 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
3877 | if (p == NULL) | |
3878 | return FALSE; | |
3879 | p->next = *head; | |
3880 | *head = p; | |
3881 | p->sec = sec; | |
3882 | p->count = 0; | |
3883 | p->pc_count = 0; | |
3884 | } | |
3885 | ||
3886 | p->count += 1; | |
1d483afe | 3887 | if (!must_be_dyn_reloc (info, r_type)) |
25dbc73a | 3888 | p->pc_count += 1; |
7619e7c7 | 3889 | } |
25dbc73a AM |
3890 | |
3891 | break; | |
7619e7c7 AM |
3892 | } |
3893 | } | |
ee05f2fe | 3894 | |
25dbc73a AM |
3895 | return TRUE; |
3896 | } | |
3897 | \f | |
34c8bcba JM |
3898 | |
3899 | /* Merge object attributes from IBFD into OBFD. Raise an error if | |
3900 | there are conflicting attributes. */ | |
3901 | static bfd_boolean | |
3902 | ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd) | |
3903 | { | |
c6e65352 DJ |
3904 | obj_attribute *in_attr, *in_attrs; |
3905 | obj_attribute *out_attr, *out_attrs; | |
34c8bcba JM |
3906 | |
3907 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
3908 | { | |
3909 | /* This is the first object. Copy the attributes. */ | |
3910 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
3911 | ||
3912 | /* Use the Tag_null value to indicate the attributes have been | |
3913 | initialized. */ | |
3914 | elf_known_obj_attributes_proc (obfd)[0].i = 1; | |
3915 | ||
3916 | return TRUE; | |
3917 | } | |
3918 | ||
c6e65352 DJ |
3919 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
3920 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
3921 | ||
34c8bcba JM |
3922 | /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge |
3923 | non-conflicting ones. */ | |
c6e65352 DJ |
3924 | in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; |
3925 | out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; | |
3926 | if (in_attr->i != out_attr->i) | |
34c8bcba | 3927 | { |
c6e65352 DJ |
3928 | out_attr->type = 1; |
3929 | if (out_attr->i == 0) | |
3930 | out_attr->i = in_attr->i; | |
3931 | else if (in_attr->i == 0) | |
34c8bcba | 3932 | ; |
c6e65352 | 3933 | else if (out_attr->i == 1 && in_attr->i == 2) |
34c8bcba JM |
3934 | _bfd_error_handler |
3935 | (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); | |
3c7b9897 AM |
3936 | else if (out_attr->i == 1 && in_attr->i == 3) |
3937 | _bfd_error_handler | |
3938 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), | |
3939 | obfd, ibfd); | |
3940 | else if (out_attr->i == 3 && in_attr->i == 1) | |
3941 | _bfd_error_handler | |
3942 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), | |
3943 | ibfd, obfd); | |
3944 | else if (out_attr->i == 3 && in_attr->i == 2) | |
3945 | _bfd_error_handler | |
3946 | (_("Warning: %B uses soft float, %B uses single-precision hard float"), | |
3947 | ibfd, obfd); | |
3948 | else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3)) | |
34c8bcba JM |
3949 | _bfd_error_handler |
3950 | (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); | |
3c7b9897 | 3951 | else if (in_attr->i > 3) |
34c8bcba JM |
3952 | _bfd_error_handler |
3953 | (_("Warning: %B uses unknown floating point ABI %d"), ibfd, | |
c6e65352 | 3954 | in_attr->i); |
34c8bcba JM |
3955 | else |
3956 | _bfd_error_handler | |
3957 | (_("Warning: %B uses unknown floating point ABI %d"), obfd, | |
c6e65352 DJ |
3958 | out_attr->i); |
3959 | } | |
3960 | ||
3961 | /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and | |
3962 | merge non-conflicting ones. */ | |
3963 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; | |
3964 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; | |
3965 | if (in_attr->i != out_attr->i) | |
3966 | { | |
3967 | const char *in_abi = NULL, *out_abi = NULL; | |
3968 | ||
3969 | switch (in_attr->i) | |
3970 | { | |
3971 | case 1: in_abi = "generic"; break; | |
3972 | case 2: in_abi = "AltiVec"; break; | |
3973 | case 3: in_abi = "SPE"; break; | |
3974 | } | |
3975 | ||
3976 | switch (out_attr->i) | |
3977 | { | |
3978 | case 1: out_abi = "generic"; break; | |
3979 | case 2: out_abi = "AltiVec"; break; | |
3980 | case 3: out_abi = "SPE"; break; | |
3981 | } | |
3982 | ||
3983 | out_attr->type = 1; | |
3984 | if (out_attr->i == 0) | |
3985 | out_attr->i = in_attr->i; | |
3986 | else if (in_attr->i == 0) | |
3987 | ; | |
3988 | /* For now, allow generic to transition to AltiVec or SPE | |
3989 | without a warning. If GCC marked files with their stack | |
3990 | alignment and used don't-care markings for files which are | |
3991 | not affected by the vector ABI, we could warn about this | |
3992 | case too. */ | |
3993 | else if (out_attr->i == 1) | |
3994 | out_attr->i = in_attr->i; | |
3995 | else if (in_attr->i == 1) | |
3996 | ; | |
3997 | else if (in_abi == NULL) | |
3998 | _bfd_error_handler | |
3999 | (_("Warning: %B uses unknown vector ABI %d"), ibfd, | |
4000 | in_attr->i); | |
4001 | else if (out_abi == NULL) | |
4002 | _bfd_error_handler | |
4003 | (_("Warning: %B uses unknown vector ABI %d"), obfd, | |
4004 | in_attr->i); | |
4005 | else | |
4006 | _bfd_error_handler | |
4007 | (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""), | |
4008 | ibfd, obfd, in_abi, out_abi); | |
34c8bcba JM |
4009 | } |
4010 | ||
f82e0623 NF |
4011 | /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes |
4012 | and merge non-conflicting ones. */ | |
4013 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4014 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4015 | if (in_attr->i != out_attr->i) | |
4016 | { | |
4017 | out_attr->type = 1; | |
4018 | if (out_attr->i == 0) | |
4019 | out_attr->i = in_attr->i; | |
4020 | else if (in_attr->i == 0) | |
4021 | ; | |
4022 | else if (out_attr->i == 1 && in_attr->i == 2) | |
4023 | _bfd_error_handler | |
4024 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd); | |
4025 | else if (out_attr->i == 2 && in_attr->i == 1) | |
4026 | _bfd_error_handler | |
4027 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd); | |
4028 | else if (in_attr->i > 2) | |
4029 | _bfd_error_handler | |
4030 | (_("Warning: %B uses unknown small structure return convention %d"), ibfd, | |
4031 | in_attr->i); | |
4032 | else | |
4033 | _bfd_error_handler | |
4034 | (_("Warning: %B uses unknown small structure return convention %d"), obfd, | |
4035 | out_attr->i); | |
4036 | } | |
4037 | ||
34c8bcba JM |
4038 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
4039 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
4040 | ||
4041 | return TRUE; | |
4042 | } | |
4043 | ||
8853c3d3 AM |
4044 | /* Merge backend specific data from an object file to the output |
4045 | object file when linking. */ | |
4046 | ||
4047 | static bfd_boolean | |
4048 | ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4049 | { | |
4050 | flagword old_flags; | |
4051 | flagword new_flags; | |
4052 | bfd_boolean error; | |
4053 | ||
0c8d6e5c | 4054 | if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) |
8853c3d3 AM |
4055 | return TRUE; |
4056 | ||
4057 | /* Check if we have the same endianess. */ | |
4058 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) | |
4059 | return FALSE; | |
4060 | ||
34c8bcba JM |
4061 | if (!ppc_elf_merge_obj_attributes (ibfd, obfd)) |
4062 | return FALSE; | |
4063 | ||
8853c3d3 AM |
4064 | new_flags = elf_elfheader (ibfd)->e_flags; |
4065 | old_flags = elf_elfheader (obfd)->e_flags; | |
4066 | if (!elf_flags_init (obfd)) | |
4067 | { | |
4068 | /* First call, no flags set. */ | |
4069 | elf_flags_init (obfd) = TRUE; | |
4070 | elf_elfheader (obfd)->e_flags = new_flags; | |
4071 | } | |
4072 | ||
4073 | /* Compatible flags are ok. */ | |
4074 | else if (new_flags == old_flags) | |
4075 | ; | |
4076 | ||
4077 | /* Incompatible flags. */ | |
4078 | else | |
4079 | { | |
4080 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib | |
4081 | to be linked with either. */ | |
4082 | error = FALSE; | |
4083 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 | |
4084 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
4085 | { | |
4086 | error = TRUE; | |
4087 | (*_bfd_error_handler) | |
4088 | (_("%B: compiled with -mrelocatable and linked with " | |
4089 | "modules compiled normally"), ibfd); | |
4090 | } | |
4091 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
4092 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
4093 | { | |
4094 | error = TRUE; | |
4095 | (*_bfd_error_handler) | |
4096 | (_("%B: compiled normally and linked with " | |
4097 | "modules compiled with -mrelocatable"), ibfd); | |
4098 | } | |
4099 | ||
4100 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
4101 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
4102 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
4103 | ||
4104 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
4105 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
4106 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
4107 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
4108 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
4109 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
4110 | ||
4111 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if | |
4112 | any module uses it. */ | |
4113 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); | |
4114 | ||
4115 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4116 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4117 | ||
4118 | /* Warn about any other mismatches. */ | |
4119 | if (new_flags != old_flags) | |
4120 | { | |
4121 | error = TRUE; | |
4122 | (*_bfd_error_handler) | |
4123 | (_("%B: uses different e_flags (0x%lx) fields " | |
4124 | "than previous modules (0x%lx)"), | |
4125 | ibfd, (long) new_flags, (long) old_flags); | |
4126 | } | |
4127 | ||
4128 | if (error) | |
4129 | { | |
4130 | bfd_set_error (bfd_error_bad_value); | |
4131 | return FALSE; | |
4132 | } | |
4133 | } | |
4134 | ||
4135 | return TRUE; | |
4136 | } | |
4137 | \f | |
d7128ce4 AM |
4138 | /* Choose which PLT scheme to use, and set .plt flags appropriately. |
4139 | Returns -1 on error, 0 for old PLT, 1 for new PLT. */ | |
4140 | int | |
4141 | ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, | |
4142 | struct bfd_link_info *info, | |
016687f8 | 4143 | enum ppc_elf_plt_type plt_style, |
0ba07910 | 4144 | int emit_stub_syms) |
d7128ce4 AM |
4145 | { |
4146 | struct ppc_elf_link_hash_table *htab; | |
9d8504b1 | 4147 | flagword flags; |
d7128ce4 AM |
4148 | |
4149 | htab = ppc_elf_hash_table (info); | |
4a3dc543 RS |
4150 | |
4151 | if (htab->plt_type == PLT_UNSET) | |
016687f8 AM |
4152 | { |
4153 | if (plt_style == PLT_OLD) | |
4154 | htab->plt_type = PLT_OLD; | |
4155 | else | |
4156 | { | |
4157 | bfd *ibfd; | |
4158 | enum ppc_elf_plt_type plt_type = plt_style; | |
4159 | ||
4160 | /* Look through the reloc flags left by ppc_elf_check_relocs. | |
4161 | Use the old style bss plt if a file makes plt calls | |
4162 | without using the new relocs, and if ld isn't given | |
4163 | --secure-plt and we never see REL16 relocs. */ | |
4164 | if (plt_type == PLT_UNSET) | |
4165 | plt_type = PLT_OLD; | |
60b31e8d | 4166 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) |
0c8d6e5c | 4167 | if (is_ppc_elf (ibfd)) |
016687f8 AM |
4168 | { |
4169 | if (ppc_elf_tdata (ibfd)->has_rel16) | |
4170 | plt_type = PLT_NEW; | |
4171 | else if (ppc_elf_tdata (ibfd)->makes_plt_call) | |
4172 | { | |
4173 | plt_type = PLT_OLD; | |
4174 | htab->old_bfd = ibfd; | |
4175 | break; | |
4176 | } | |
4177 | } | |
4178 | htab->plt_type = plt_type; | |
4179 | } | |
4180 | } | |
4181 | if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW) | |
4182 | info->callbacks->info (_("Using bss-plt due to %B"), htab->old_bfd); | |
d7128ce4 | 4183 | |
0ba07910 AM |
4184 | htab->emit_stub_syms = emit_stub_syms; |
4185 | ||
4a3dc543 | 4186 | BFD_ASSERT (htab->plt_type != PLT_VXWORKS); |
9d8504b1 | 4187 | |
4a3dc543 | 4188 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
4189 | { |
4190 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
4191 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
86b9da88 AM |
4192 | |
4193 | /* The new PLT is a loaded section. */ | |
4194 | if (htab->plt != NULL | |
4195 | && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) | |
4196 | return -1; | |
4197 | ||
4198 | /* The new GOT is not executable. */ | |
4199 | if (htab->got != NULL | |
4200 | && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) | |
4201 | return -1; | |
d7128ce4 AM |
4202 | } |
4203 | else | |
4204 | { | |
4205 | /* Stop an unused .glink section from affecting .text alignment. */ | |
86b9da88 AM |
4206 | if (htab->glink != NULL |
4207 | && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) | |
4208 | return -1; | |
d7128ce4 | 4209 | } |
4a3dc543 | 4210 | return htab->plt_type == PLT_NEW; |
d7128ce4 AM |
4211 | } |
4212 | \f | |
25dbc73a AM |
4213 | /* Return the section that should be marked against GC for a given |
4214 | relocation. */ | |
586119b3 | 4215 | |
25dbc73a AM |
4216 | static asection * |
4217 | ppc_elf_gc_mark_hook (asection *sec, | |
07adf181 | 4218 | struct bfd_link_info *info, |
25dbc73a AM |
4219 | Elf_Internal_Rela *rel, |
4220 | struct elf_link_hash_entry *h, | |
4221 | Elf_Internal_Sym *sym) | |
4222 | { | |
4223 | if (h != NULL) | |
07adf181 AM |
4224 | switch (ELF32_R_TYPE (rel->r_info)) |
4225 | { | |
4226 | case R_PPC_GNU_VTINHERIT: | |
4227 | case R_PPC_GNU_VTENTRY: | |
4228 | return NULL; | |
4229 | } | |
4230 | ||
4231 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
25dbc73a | 4232 | } |
a876ecf9 | 4233 | |
25dbc73a AM |
4234 | /* Update the got, plt and dynamic reloc reference counts for the |
4235 | section being removed. */ | |
4236 | ||
4237 | static bfd_boolean | |
4238 | ppc_elf_gc_sweep_hook (bfd *abfd, | |
4239 | struct bfd_link_info *info, | |
4240 | asection *sec, | |
4241 | const Elf_Internal_Rela *relocs) | |
4242 | { | |
4243 | struct ppc_elf_link_hash_table *htab; | |
4244 | Elf_Internal_Shdr *symtab_hdr; | |
4245 | struct elf_link_hash_entry **sym_hashes; | |
4246 | bfd_signed_vma *local_got_refcounts; | |
4247 | const Elf_Internal_Rela *rel, *relend; | |
a6aa5195 | 4248 | asection *got2; |
25dbc73a | 4249 | |
7dda2462 TG |
4250 | if (info->relocatable) |
4251 | return TRUE; | |
4252 | ||
c87b5a93 AM |
4253 | if ((sec->flags & SEC_ALLOC) == 0) |
4254 | return TRUE; | |
4255 | ||
25dbc73a AM |
4256 | elf_section_data (sec)->local_dynrel = NULL; |
4257 | ||
4258 | htab = ppc_elf_hash_table (info); | |
0ffa91dd | 4259 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a AM |
4260 | sym_hashes = elf_sym_hashes (abfd); |
4261 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a6aa5195 | 4262 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
4263 | |
4264 | relend = relocs + sec->reloc_count; | |
4265 | for (rel = relocs; rel < relend; rel++) | |
4266 | { | |
4267 | unsigned long r_symndx; | |
4268 | enum elf_ppc_reloc_type r_type; | |
4269 | struct elf_link_hash_entry *h = NULL; | |
4270 | ||
4271 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4272 | if (r_symndx >= symtab_hdr->sh_info) | |
a876ecf9 | 4273 | { |
25dbc73a AM |
4274 | struct ppc_elf_dyn_relocs **pp, *p; |
4275 | struct ppc_elf_link_hash_entry *eh; | |
4276 | ||
4277 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4278 | while (h->root.type == bfd_link_hash_indirect | |
4279 | || h->root.type == bfd_link_hash_warning) | |
4280 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4281 | eh = (struct ppc_elf_link_hash_entry *) h; | |
4282 | ||
4283 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4284 | if (p->sec == sec) | |
4285 | { | |
4286 | /* Everything must go for SEC. */ | |
4287 | *pp = p->next; | |
4288 | break; | |
4289 | } | |
a876ecf9 | 4290 | } |
ee05f2fe | 4291 | |
25dbc73a AM |
4292 | r_type = ELF32_R_TYPE (rel->r_info); |
4293 | switch (r_type) | |
ee05f2fe | 4294 | { |
25dbc73a AM |
4295 | case R_PPC_GOT_TLSLD16: |
4296 | case R_PPC_GOT_TLSLD16_LO: | |
4297 | case R_PPC_GOT_TLSLD16_HI: | |
4298 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4299 | case R_PPC_GOT_TLSGD16: |
4300 | case R_PPC_GOT_TLSGD16_LO: | |
4301 | case R_PPC_GOT_TLSGD16_HI: | |
4302 | case R_PPC_GOT_TLSGD16_HA: | |
4303 | case R_PPC_GOT_TPREL16: | |
4304 | case R_PPC_GOT_TPREL16_LO: | |
4305 | case R_PPC_GOT_TPREL16_HI: | |
4306 | case R_PPC_GOT_TPREL16_HA: | |
4307 | case R_PPC_GOT_DTPREL16: | |
4308 | case R_PPC_GOT_DTPREL16_LO: | |
4309 | case R_PPC_GOT_DTPREL16_HI: | |
4310 | case R_PPC_GOT_DTPREL16_HA: | |
4311 | case R_PPC_GOT16: | |
4312 | case R_PPC_GOT16_LO: | |
4313 | case R_PPC_GOT16_HI: | |
4314 | case R_PPC_GOT16_HA: | |
4315 | if (h != NULL) | |
ee05f2fe | 4316 | { |
25dbc73a AM |
4317 | if (h->got.refcount > 0) |
4318 | h->got.refcount--; | |
ee05f2fe | 4319 | } |
25dbc73a AM |
4320 | else if (local_got_refcounts != NULL) |
4321 | { | |
4322 | if (local_got_refcounts[r_symndx] > 0) | |
4323 | local_got_refcounts[r_symndx]--; | |
4324 | } | |
4325 | break; | |
ee05f2fe | 4326 | |
25dbc73a AM |
4327 | case R_PPC_REL24: |
4328 | case R_PPC_REL14: | |
4329 | case R_PPC_REL14_BRTAKEN: | |
4330 | case R_PPC_REL14_BRNTAKEN: | |
4331 | case R_PPC_REL32: | |
3b36f7e6 | 4332 | if (h == NULL || h == htab->elf.hgot) |
25dbc73a AM |
4333 | break; |
4334 | /* Fall thru */ | |
ee05f2fe | 4335 | |
25dbc73a AM |
4336 | case R_PPC_ADDR32: |
4337 | case R_PPC_ADDR24: | |
4338 | case R_PPC_ADDR16: | |
4339 | case R_PPC_ADDR16_LO: | |
4340 | case R_PPC_ADDR16_HI: | |
4341 | case R_PPC_ADDR16_HA: | |
4342 | case R_PPC_ADDR14: | |
4343 | case R_PPC_ADDR14_BRTAKEN: | |
4344 | case R_PPC_ADDR14_BRNTAKEN: | |
4345 | case R_PPC_UADDR32: | |
4346 | case R_PPC_UADDR16: | |
87538722 AM |
4347 | if (info->shared) |
4348 | break; | |
4349 | ||
25dbc73a AM |
4350 | case R_PPC_PLT32: |
4351 | case R_PPC_PLTREL24: | |
87538722 | 4352 | case R_PPC_PLTREL32: |
25dbc73a AM |
4353 | case R_PPC_PLT16_LO: |
4354 | case R_PPC_PLT16_HI: | |
4355 | case R_PPC_PLT16_HA: | |
4356 | if (h != NULL) | |
4357 | { | |
a6aa5195 AM |
4358 | bfd_vma addend = r_type == R_PPC_PLTREL24 ? rel->r_addend : 0; |
4359 | struct plt_entry *ent = find_plt_ent (h, got2, addend); | |
4360 | if (ent->plt.refcount > 0) | |
4361 | ent->plt.refcount -= 1; | |
25dbc73a AM |
4362 | } |
4363 | break; | |
ee05f2fe | 4364 | |
25dbc73a AM |
4365 | default: |
4366 | break; | |
4367 | } | |
7fce784e | 4368 | } |
7fce784e AS |
4369 | return TRUE; |
4370 | } | |
25dbc73a | 4371 | \f |
3a71aa26 AM |
4372 | /* Set plt output section type, htab->tls_get_addr, and call the |
4373 | generic ELF tls_setup function. */ | |
7fce784e | 4374 | |
25dbc73a AM |
4375 | asection * |
4376 | ppc_elf_tls_setup (bfd *obfd, struct bfd_link_info *info) | |
7fce784e | 4377 | { |
25dbc73a | 4378 | struct ppc_elf_link_hash_table *htab; |
7fce784e | 4379 | |
25dbc73a | 4380 | htab = ppc_elf_hash_table (info); |
4a3dc543 | 4381 | if (htab->plt_type == PLT_NEW |
d7128ce4 AM |
4382 | && htab->plt != NULL |
4383 | && htab->plt->output_section != NULL) | |
4384 | { | |
4385 | elf_section_type (htab->plt->output_section) = SHT_PROGBITS; | |
4386 | elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; | |
4387 | } | |
4388 | ||
25dbc73a AM |
4389 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
4390 | FALSE, FALSE, TRUE); | |
25dbc73a | 4391 | return _bfd_elf_tls_setup (obfd, info); |
7fce784e AS |
4392 | } |
4393 | ||
3a71aa26 AM |
4394 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
4395 | HASH. */ | |
4396 | ||
4397 | static bfd_boolean | |
4398 | branch_reloc_hash_match (const bfd *ibfd, | |
4399 | const Elf_Internal_Rela *rel, | |
4400 | const struct elf_link_hash_entry *hash) | |
4401 | { | |
4402 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
4403 | enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); | |
4404 | unsigned int r_symndx = ELF32_R_SYM (rel->r_info); | |
4405 | ||
4406 | if (r_symndx >= symtab_hdr->sh_info | |
4407 | && (r_type == R_PPC_PLTREL24 | |
4408 | || r_type == R_PPC_LOCAL24PC | |
4409 | || r_type == R_PPC_REL14 | |
4410 | || r_type == R_PPC_REL14_BRTAKEN | |
4411 | || r_type == R_PPC_REL14_BRNTAKEN | |
4412 | || r_type == R_PPC_REL24 | |
4413 | || r_type == R_PPC_ADDR24 | |
4414 | || r_type == R_PPC_ADDR14 | |
4415 | || r_type == R_PPC_ADDR14_BRTAKEN | |
4416 | || r_type == R_PPC_ADDR14_BRNTAKEN)) | |
4417 | { | |
4418 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
4419 | struct elf_link_hash_entry *h; | |
4420 | ||
4421 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4422 | while (h->root.type == bfd_link_hash_indirect | |
4423 | || h->root.type == bfd_link_hash_warning) | |
4424 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4425 | if (h == hash) | |
4426 | return TRUE; | |
4427 | } | |
4428 | return FALSE; | |
4429 | } | |
4430 | ||
25dbc73a AM |
4431 | /* Run through all the TLS relocs looking for optimization |
4432 | opportunities. */ | |
252b5132 | 4433 | |
25dbc73a AM |
4434 | bfd_boolean |
4435 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, | |
4436 | struct bfd_link_info *info) | |
252b5132 | 4437 | { |
7fce784e | 4438 | bfd *ibfd; |
25dbc73a AM |
4439 | asection *sec; |
4440 | struct ppc_elf_link_hash_table *htab; | |
b7fcf6f6 | 4441 | int pass; |
252b5132 | 4442 | |
1d483afe | 4443 | if (info->relocatable || !info->executable) |
25dbc73a | 4444 | return TRUE; |
252b5132 | 4445 | |
7619e7c7 | 4446 | htab = ppc_elf_hash_table (info); |
b7fcf6f6 AM |
4447 | /* Make two passes through the relocs. First time check that tls |
4448 | relocs involved in setting up a tls_get_addr call are indeed | |
4449 | followed by such a call. If they are not, exclude them from | |
4450 | the optimizations done on the second pass. */ | |
4451 | for (pass = 0; pass < 2; ++pass) | |
4452 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
4453 | { | |
4454 | Elf_Internal_Sym *locsyms = NULL; | |
0ffa91dd | 4455 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
7619e7c7 | 4456 | |
b7fcf6f6 AM |
4457 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
4458 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
4459 | { | |
4460 | Elf_Internal_Rela *relstart, *rel, *relend; | |
252b5132 | 4461 | |
b7fcf6f6 AM |
4462 | /* Read the relocations. */ |
4463 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
4464 | info->keep_memory); | |
4465 | if (relstart == NULL) | |
4466 | return FALSE; | |
7619e7c7 | 4467 | |
b7fcf6f6 AM |
4468 | relend = relstart + sec->reloc_count; |
4469 | for (rel = relstart; rel < relend; rel++) | |
4470 | { | |
4471 | enum elf_ppc_reloc_type r_type; | |
4472 | unsigned long r_symndx; | |
4473 | struct elf_link_hash_entry *h = NULL; | |
4474 | char *tls_mask; | |
4475 | char tls_set, tls_clear; | |
4476 | bfd_boolean is_local; | |
4477 | int expecting_tls_get_addr; | |
4478 | bfd_signed_vma *got_count; | |
4479 | ||
4480 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4481 | if (r_symndx >= symtab_hdr->sh_info) | |
4482 | { | |
4483 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 4484 | |
b7fcf6f6 AM |
4485 | sym_hashes = elf_sym_hashes (ibfd); |
4486 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4487 | while (h->root.type == bfd_link_hash_indirect | |
4488 | || h->root.type == bfd_link_hash_warning) | |
4489 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4490 | } | |
7619e7c7 | 4491 | |
b7fcf6f6 AM |
4492 | expecting_tls_get_addr = 0; |
4493 | is_local = FALSE; | |
4494 | if (h == NULL | |
4495 | || !h->def_dynamic) | |
4496 | is_local = TRUE; | |
7619e7c7 | 4497 | |
b7fcf6f6 AM |
4498 | r_type = ELF32_R_TYPE (rel->r_info); |
4499 | switch (r_type) | |
4500 | { | |
4501 | case R_PPC_GOT_TLSLD16: | |
4502 | case R_PPC_GOT_TLSLD16_LO: | |
4503 | expecting_tls_get_addr = 1; | |
4504 | /* Fall thru */ | |
4505 | ||
4506 | case R_PPC_GOT_TLSLD16_HI: | |
4507 | case R_PPC_GOT_TLSLD16_HA: | |
4508 | /* These relocs should never be against a symbol | |
4509 | defined in a shared lib. Leave them alone if | |
4510 | that turns out to be the case. */ | |
4511 | if (!is_local) | |
4512 | continue; | |
4513 | ||
4514 | /* LD -> LE */ | |
4515 | tls_set = 0; | |
4516 | tls_clear = TLS_LD; | |
4517 | break; | |
4518 | ||
4519 | case R_PPC_GOT_TLSGD16: | |
4520 | case R_PPC_GOT_TLSGD16_LO: | |
4521 | expecting_tls_get_addr = 1; | |
4522 | /* Fall thru */ | |
4523 | ||
4524 | case R_PPC_GOT_TLSGD16_HI: | |
4525 | case R_PPC_GOT_TLSGD16_HA: | |
4526 | if (is_local) | |
4527 | /* GD -> LE */ | |
4528 | tls_set = 0; | |
4529 | else | |
4530 | /* GD -> IE */ | |
4531 | tls_set = TLS_TLS | TLS_TPRELGD; | |
4532 | tls_clear = TLS_GD; | |
4533 | break; | |
4534 | ||
4535 | case R_PPC_GOT_TPREL16: | |
4536 | case R_PPC_GOT_TPREL16_LO: | |
4537 | case R_PPC_GOT_TPREL16_HI: | |
4538 | case R_PPC_GOT_TPREL16_HA: | |
4539 | if (is_local) | |
4540 | { | |
4541 | /* IE -> LE */ | |
4542 | tls_set = 0; | |
4543 | tls_clear = TLS_TPREL; | |
4544 | break; | |
4545 | } | |
4546 | else | |
4547 | continue; | |
4548 | ||
4549 | default: | |
25dbc73a | 4550 | continue; |
b7fcf6f6 | 4551 | } |
25dbc73a | 4552 | |
b7fcf6f6 AM |
4553 | if (pass == 0) |
4554 | { | |
727fc41e AM |
4555 | if (!expecting_tls_get_addr |
4556 | || !sec->has_tls_get_addr_call) | |
b7fcf6f6 | 4557 | continue; |
25dbc73a | 4558 | |
3a71aa26 AM |
4559 | if (rel + 1 < relend |
4560 | && branch_reloc_hash_match (ibfd, rel + 1, | |
4561 | htab->tls_get_addr)) | |
4562 | continue; | |
25dbc73a | 4563 | |
b7fcf6f6 AM |
4564 | /* Uh oh, we didn't find the expected call. We |
4565 | could just mark this symbol to exclude it | |
4566 | from tls optimization but it's safer to skip | |
4567 | the entire section. */ | |
4568 | sec->has_tls_reloc = 0; | |
4569 | break; | |
4570 | } | |
25dbc73a | 4571 | |
b7fcf6f6 AM |
4572 | if (h != NULL) |
4573 | { | |
4574 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
4575 | got_count = &h->got.refcount; | |
4576 | } | |
4577 | else | |
4578 | { | |
4579 | Elf_Internal_Sym *sym; | |
4580 | bfd_signed_vma *lgot_refs; | |
4581 | char *lgot_masks; | |
25dbc73a | 4582 | |
b7fcf6f6 AM |
4583 | if (locsyms == NULL) |
4584 | { | |
4585 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4586 | if (locsyms == NULL) | |
4587 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
4588 | symtab_hdr->sh_info, | |
4589 | 0, NULL, NULL, NULL); | |
4590 | if (locsyms == NULL) | |
4591 | { | |
4592 | if (elf_section_data (sec)->relocs != relstart) | |
4593 | free (relstart); | |
4594 | return FALSE; | |
4595 | } | |
4596 | } | |
4597 | sym = locsyms + r_symndx; | |
4598 | lgot_refs = elf_local_got_refcounts (ibfd); | |
4599 | if (lgot_refs == NULL) | |
4600 | abort (); | |
4601 | lgot_masks = (char *) (lgot_refs + symtab_hdr->sh_info); | |
4602 | tls_mask = &lgot_masks[r_symndx]; | |
4603 | got_count = &lgot_refs[r_symndx]; | |
4604 | } | |
25dbc73a | 4605 | |
b7fcf6f6 AM |
4606 | if (tls_set == 0) |
4607 | { | |
4608 | /* We managed to get rid of a got entry. */ | |
4609 | if (*got_count > 0) | |
4610 | *got_count -= 1; | |
4611 | } | |
25dbc73a | 4612 | |
b7fcf6f6 AM |
4613 | if (expecting_tls_get_addr) |
4614 | { | |
4615 | struct plt_entry *ent; | |
25dbc73a | 4616 | |
b7fcf6f6 AM |
4617 | ent = find_plt_ent (htab->tls_get_addr, NULL, 0); |
4618 | if (ent != NULL && ent->plt.refcount > 0) | |
4619 | ent->plt.refcount -= 1; | |
4620 | } | |
25dbc73a | 4621 | |
b7fcf6f6 AM |
4622 | *tls_mask |= tls_set; |
4623 | *tls_mask &= ~tls_clear; | |
4624 | } | |
25dbc73a | 4625 | |
b7fcf6f6 AM |
4626 | if (elf_section_data (sec)->relocs != relstart) |
4627 | free (relstart); | |
4628 | } | |
4629 | ||
4630 | if (locsyms != NULL | |
4631 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
4632 | { | |
4633 | if (!info->keep_memory) | |
4634 | free (locsyms); | |
4635 | else | |
4636 | symtab_hdr->contents = (unsigned char *) locsyms; | |
4637 | } | |
4638 | } | |
25dbc73a AM |
4639 | return TRUE; |
4640 | } | |
4641 | \f | |
625af618 AM |
4642 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
4643 | ||
4644 | static bfd_boolean | |
4645 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
4646 | { | |
4647 | struct ppc_elf_dyn_relocs *p; | |
4648 | ||
4649 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
4650 | { | |
4651 | asection *s = p->sec->output_section; | |
4652 | ||
4653 | if (s != NULL | |
4654 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
4655 | == (SEC_READONLY | SEC_ALLOC))) | |
4656 | return TRUE; | |
4657 | } | |
4658 | return FALSE; | |
4659 | } | |
4660 | ||
25dbc73a AM |
4661 | /* Adjust a symbol defined by a dynamic object and referenced by a |
4662 | regular object. The current definition is in some section of the | |
4663 | dynamic object, but we're not including those sections. We have to | |
4664 | change the definition to something the rest of the link can | |
4665 | understand. */ | |
7fce784e | 4666 | |
25dbc73a AM |
4667 | static bfd_boolean |
4668 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
4669 | struct elf_link_hash_entry *h) | |
4670 | { | |
4671 | struct ppc_elf_link_hash_table *htab; | |
4672 | asection *s; | |
7fce784e | 4673 | |
25dbc73a AM |
4674 | #ifdef DEBUG |
4675 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", | |
4676 | h->root.root.string); | |
4677 | #endif | |
252b5132 | 4678 | |
25dbc73a AM |
4679 | /* Make sure we know what is going on here. */ |
4680 | htab = ppc_elf_hash_table (info); | |
4681 | BFD_ASSERT (htab->elf.dynobj != NULL | |
4682 | && (h->needs_plt | |
4683 | || h->u.weakdef != NULL | |
4684 | || (h->def_dynamic | |
4685 | && h->ref_regular | |
4686 | && !h->def_regular))); | |
252b5132 | 4687 | |
25dbc73a AM |
4688 | /* Deal with function syms. */ |
4689 | if (h->type == STT_FUNC | |
4690 | || h->needs_plt) | |
4691 | { | |
4692 | /* Clear procedure linkage table information for any symbol that | |
4693 | won't need a .plt entry. */ | |
a6aa5195 AM |
4694 | struct plt_entry *ent; |
4695 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
4696 | if (ent->plt.refcount > 0) | |
4697 | break; | |
4698 | if (ent == NULL | |
25dbc73a AM |
4699 | || SYMBOL_CALLS_LOCAL (info, h) |
4700 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4701 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 | 4702 | { |
25dbc73a | 4703 | /* A PLT entry is not required/allowed when: |
252b5132 | 4704 | |
25dbc73a AM |
4705 | 1. We are not using ld.so; because then the PLT entry |
4706 | can't be set up, so we can't use one. In this case, | |
4707 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 4708 | |
25dbc73a AM |
4709 | 2. GC has rendered the entry unused. |
4710 | ||
4711 | 3. We know for certain that a call to this symbol | |
4712 | will go to this object, or will remain undefined. */ | |
a6aa5195 | 4713 | h->plt.plist = NULL; |
25dbc73a AM |
4714 | h->needs_plt = 0; |
4715 | } | |
625af618 AM |
4716 | else |
4717 | { | |
4718 | /* After adjust_dynamic_symbol, non_got_ref set means that | |
4719 | dyn_relocs for this symbol should be discarded. | |
4720 | If we get here we know we are making a PLT entry for this | |
4721 | symbol, and in an executable we'd normally resolve | |
4722 | relocations against this symbol to the PLT entry. Allow | |
4723 | dynamic relocs if the reference is weak, and the dynamic | |
4724 | relocs will not cause text relocation. */ | |
4725 | if (!h->ref_regular_nonweak | |
4726 | && h->non_got_ref | |
4727 | && !htab->is_vxworks | |
4728 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
4729 | && !readonly_dynrelocs (h)) | |
4730 | h->non_got_ref = 0; | |
4731 | } | |
25dbc73a | 4732 | return TRUE; |
252b5132 | 4733 | } |
25dbc73a | 4734 | else |
a6aa5195 | 4735 | h->plt.plist = NULL; |
252b5132 | 4736 | |
25dbc73a AM |
4737 | /* If this is a weak symbol, and there is a real definition, the |
4738 | processor independent code will have arranged for us to see the | |
4739 | real definition first, and we can just use the same value. */ | |
4740 | if (h->u.weakdef != NULL) | |
252b5132 | 4741 | { |
25dbc73a AM |
4742 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
4743 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
4744 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
4745 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
4746 | if (ELIMINATE_COPY_RELOCS) | |
4747 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
4748 | return TRUE; | |
4749 | } | |
dc810e39 | 4750 | |
25dbc73a AM |
4751 | /* This is a reference to a symbol defined by a dynamic object which |
4752 | is not a function. */ | |
252b5132 | 4753 | |
25dbc73a AM |
4754 | /* If we are creating a shared library, we must presume that the |
4755 | only references to the symbol are via the global offset table. | |
4756 | For such cases we need not do anything here; the relocations will | |
4757 | be handled correctly by relocate_section. */ | |
4758 | if (info->shared) | |
4759 | return TRUE; | |
252b5132 | 4760 | |
25dbc73a AM |
4761 | /* If there are no references to this symbol that do not use the |
4762 | GOT, we don't need to generate a copy reloc. */ | |
4763 | if (!h->non_got_ref) | |
4764 | return TRUE; | |
4765 | ||
cfd2c773 NS |
4766 | /* If we didn't find any dynamic relocs in read-only sections, then |
4767 | we'll be keeping the dynamic relocs and avoiding the copy reloc. | |
4768 | We can't do this if there are any small data relocations. This | |
4769 | doesn't work on VxWorks, where we can not have dynamic | |
4770 | relocations (other than copy and jump slot relocations) in an | |
4771 | executable. */ | |
4dc4a9a5 | 4772 | if (ELIMINATE_COPY_RELOCS |
cfd2c773 | 4773 | && !ppc_elf_hash_entry (h)->has_sda_refs |
625af618 AM |
4774 | && !htab->is_vxworks |
4775 | && !h->def_regular | |
4776 | && !readonly_dynrelocs (h)) | |
25dbc73a | 4777 | { |
625af618 AM |
4778 | h->non_got_ref = 0; |
4779 | return TRUE; | |
252b5132 RH |
4780 | } |
4781 | ||
909272ee AM |
4782 | if (h->size == 0) |
4783 | { | |
4784 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
4785 | h->root.root.string); | |
4786 | return TRUE; | |
4787 | } | |
4788 | ||
25dbc73a AM |
4789 | /* We must allocate the symbol in our .dynbss section, which will |
4790 | become part of the .bss section of the executable. There will be | |
4791 | an entry for this symbol in the .dynsym section. The dynamic | |
4792 | object will contain position independent code, so all references | |
4793 | from the dynamic object to this symbol will go through the global | |
4794 | offset table. The dynamic linker will use the .dynsym entry to | |
4795 | determine the address it must put in the global offset table, so | |
4796 | both the dynamic object and the regular object will refer to the | |
4797 | same memory location for the variable. | |
4798 | ||
4dc4a9a5 DJ |
4799 | Of course, if the symbol is referenced using SDAREL relocs, we |
4800 | must instead allocate it in .sbss. */ | |
25dbc73a | 4801 | |
4dc4a9a5 | 4802 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
4803 | s = htab->dynsbss; |
4804 | else | |
4805 | s = htab->dynbss; | |
4806 | BFD_ASSERT (s != NULL); | |
4807 | ||
4808 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
4809 | copy the initial value out of the dynamic object and into the | |
4810 | runtime process image. We need to remember the offset into the | |
4811 | .rela.bss section we are going to use. */ | |
4812 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
4813 | { | |
4814 | asection *srel; | |
4815 | ||
4dc4a9a5 | 4816 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
4817 | srel = htab->relsbss; |
4818 | else | |
4819 | srel = htab->relbss; | |
4820 | BFD_ASSERT (srel != NULL); | |
4821 | srel->size += sizeof (Elf32_External_Rela); | |
4822 | h->needs_copy = 1; | |
4823 | } | |
7619e7c7 | 4824 | |
027297b7 | 4825 | return _bfd_elf_adjust_dynamic_copy (h, s); |
25dbc73a AM |
4826 | } |
4827 | \f | |
ac39eb42 AM |
4828 | /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is |
4829 | xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, | |
4830 | specifying the addend on the plt relocation. For -fpic code, the sym | |
4831 | is xxxxxxxx.plt_pic32.<callee>, and for -fPIC | |
4832 | xxxxxxxx.got2.plt_pic32.<callee>. */ | |
0ba07910 AM |
4833 | |
4834 | static bfd_boolean | |
4835 | add_stub_sym (struct plt_entry *ent, | |
4836 | struct elf_link_hash_entry *h, | |
ac39eb42 | 4837 | struct bfd_link_info *info) |
0ba07910 AM |
4838 | { |
4839 | struct elf_link_hash_entry *sh; | |
4840 | size_t len1, len2, len3; | |
4841 | char *name; | |
ac39eb42 AM |
4842 | const char *stub; |
4843 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
4844 | ||
4845 | if (info->shared || info->pie) | |
4846 | stub = ".plt_pic32."; | |
4847 | else | |
4848 | stub = ".plt_call32."; | |
0ba07910 AM |
4849 | |
4850 | len1 = strlen (h->root.root.string); | |
ac39eb42 | 4851 | len2 = strlen (stub); |
0ba07910 AM |
4852 | len3 = 0; |
4853 | if (ent->sec) | |
4854 | len3 = strlen (ent->sec->name); | |
ac39eb42 | 4855 | name = bfd_malloc (len1 + len2 + len3 + 9); |
0ba07910 AM |
4856 | if (name == NULL) |
4857 | return FALSE; | |
4858 | sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); | |
4859 | if (ent->sec) | |
4860 | memcpy (name + 8, ent->sec->name, len3); | |
ac39eb42 AM |
4861 | memcpy (name + 8 + len3, stub, len2); |
4862 | memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); | |
0ba07910 AM |
4863 | sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); |
4864 | if (sh == NULL) | |
4865 | return FALSE; | |
4866 | if (sh->root.type == bfd_link_hash_new) | |
4867 | { | |
4868 | sh->root.type = bfd_link_hash_defined; | |
4869 | sh->root.u.def.section = htab->glink; | |
4870 | sh->root.u.def.value = ent->glink_offset; | |
4871 | sh->ref_regular = 1; | |
4872 | sh->def_regular = 1; | |
4873 | sh->ref_regular_nonweak = 1; | |
4874 | sh->forced_local = 1; | |
4875 | sh->non_elf = 0; | |
4876 | } | |
4877 | return TRUE; | |
4878 | } | |
4879 | ||
3b36f7e6 AM |
4880 | /* Allocate NEED contiguous space in .got, and return the offset. |
4881 | Handles allocation of the got header when crossing 32k. */ | |
4882 | ||
4883 | static bfd_vma | |
4884 | allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) | |
4885 | { | |
4886 | bfd_vma where; | |
4a3dc543 | 4887 | unsigned int max_before_header; |
3b36f7e6 | 4888 | |
4a3dc543 | 4889 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
4890 | { |
4891 | where = htab->got->size; | |
4892 | htab->got->size += need; | |
4893 | } | |
3b36f7e6 AM |
4894 | else |
4895 | { | |
4a3dc543 RS |
4896 | max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; |
4897 | if (need <= htab->got_gap) | |
3b36f7e6 | 4898 | { |
4a3dc543 RS |
4899 | where = max_before_header - htab->got_gap; |
4900 | htab->got_gap -= need; | |
4901 | } | |
4902 | else | |
4903 | { | |
4904 | if (htab->got->size + need > max_before_header | |
4905 | && htab->got->size <= max_before_header) | |
4906 | { | |
4907 | htab->got_gap = max_before_header - htab->got->size; | |
4908 | htab->got->size = max_before_header + htab->got_header_size; | |
4909 | } | |
4910 | where = htab->got->size; | |
4911 | htab->got->size += need; | |
3b36f7e6 | 4912 | } |
3b36f7e6 AM |
4913 | } |
4914 | return where; | |
4915 | } | |
4916 | ||
25dbc73a | 4917 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
252b5132 | 4918 | |
b34976b6 | 4919 | static bfd_boolean |
25dbc73a | 4920 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
252b5132 | 4921 | { |
25dbc73a AM |
4922 | struct bfd_link_info *info = inf; |
4923 | struct ppc_elf_link_hash_entry *eh; | |
7619e7c7 | 4924 | struct ppc_elf_link_hash_table *htab; |
25dbc73a | 4925 | struct ppc_elf_dyn_relocs *p; |
252b5132 | 4926 | |
25dbc73a | 4927 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 4928 | return TRUE; |
252b5132 | 4929 | |
25dbc73a AM |
4930 | if (h->root.type == bfd_link_hash_warning) |
4931 | /* When warning symbols are created, they **replace** the "real" | |
4932 | entry in the hash table, thus we never get to see the real | |
4933 | symbol in a hash traversal. So look at it now. */ | |
4934 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
e47cd125 | 4935 | |
7619e7c7 | 4936 | htab = ppc_elf_hash_table (info); |
a6aa5195 | 4937 | if (htab->elf.dynamic_sections_created) |
252b5132 | 4938 | { |
a6aa5195 AM |
4939 | struct plt_entry *ent; |
4940 | bfd_boolean doneone = FALSE; | |
28e99bb6 AM |
4941 | bfd_vma plt_offset = 0, glink_offset = 0; |
4942 | ||
a6aa5195 AM |
4943 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
4944 | if (ent->plt.refcount > 0) | |
4945 | { | |
4946 | /* Make sure this symbol is output as a dynamic symbol. */ | |
4947 | if (h->dynindx == -1 | |
4948 | && !h->forced_local) | |
4949 | { | |
4950 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
4951 | return FALSE; | |
4952 | } | |
252b5132 | 4953 | |
a6aa5195 AM |
4954 | if (info->shared |
4955 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
4956 | { | |
4957 | asection *s = htab->plt; | |
7619e7c7 | 4958 | |
4a3dc543 | 4959 | if (htab->plt_type == PLT_NEW) |
a6aa5195 | 4960 | { |
a6aa5195 | 4961 | if (!doneone) |
28e99bb6 AM |
4962 | { |
4963 | plt_offset = s->size; | |
4964 | s->size += 4; | |
4965 | } | |
4966 | ent->plt.offset = plt_offset; | |
d7128ce4 | 4967 | |
a6aa5195 | 4968 | s = htab->glink; |
28e99bb6 AM |
4969 | if (!doneone || info->shared || info->pie) |
4970 | { | |
4971 | glink_offset = s->size; | |
4972 | s->size += GLINK_ENTRY_SIZE; | |
4973 | } | |
4974 | if (!doneone | |
4975 | && !info->shared | |
625af618 | 4976 | && h->def_dynamic |
a6aa5195 AM |
4977 | && !h->def_regular) |
4978 | { | |
4979 | h->root.u.def.section = s; | |
28e99bb6 | 4980 | h->root.u.def.value = glink_offset; |
a6aa5195 | 4981 | } |
28e99bb6 | 4982 | ent->glink_offset = glink_offset; |
0ba07910 AM |
4983 | |
4984 | if (htab->emit_stub_syms | |
ac39eb42 | 4985 | && !add_stub_sym (ent, h, info)) |
0ba07910 | 4986 | return FALSE; |
a6aa5195 AM |
4987 | } |
4988 | else | |
4989 | { | |
a6aa5195 AM |
4990 | if (!doneone) |
4991 | { | |
28e99bb6 AM |
4992 | /* If this is the first .plt entry, make room |
4993 | for the special first entry. */ | |
4994 | if (s->size == 0) | |
9d8504b1 | 4995 | s->size += htab->plt_initial_entry_size; |
28e99bb6 AM |
4996 | |
4997 | /* The PowerPC PLT is actually composed of two | |
4998 | parts, the first part is 2 words (for a load | |
4999 | and a jump), and then there is a remaining | |
5000 | word available at the end. */ | |
9d8504b1 PB |
5001 | plt_offset = (htab->plt_initial_entry_size |
5002 | + (htab->plt_slot_size | |
5003 | * ((s->size | |
5004 | - htab->plt_initial_entry_size) | |
5005 | / htab->plt_entry_size))); | |
28e99bb6 AM |
5006 | |
5007 | /* If this symbol is not defined in a regular | |
5008 | file, and we are not generating a shared | |
5009 | library, then set the symbol to this location | |
5010 | in the .plt. This is required to make | |
5011 | function pointers compare as equal between | |
5012 | the normal executable and the shared library. */ | |
5013 | if (! info->shared | |
625af618 | 5014 | && h->def_dynamic |
28e99bb6 AM |
5015 | && !h->def_regular) |
5016 | { | |
5017 | h->root.u.def.section = s; | |
5018 | h->root.u.def.value = plt_offset; | |
5019 | } | |
5020 | ||
9d8504b1 PB |
5021 | /* Make room for this entry. */ |
5022 | s->size += htab->plt_entry_size; | |
5023 | /* After the 8192nd entry, room for two entries | |
5024 | is allocated. */ | |
4a3dc543 | 5025 | if (htab->plt_type == PLT_OLD |
9d8504b1 PB |
5026 | && (s->size - htab->plt_initial_entry_size) |
5027 | / htab->plt_entry_size | |
5028 | > PLT_NUM_SINGLE_ENTRIES) | |
5029 | s->size += htab->plt_entry_size; | |
a6aa5195 | 5030 | } |
28e99bb6 | 5031 | ent->plt.offset = plt_offset; |
a6aa5195 | 5032 | } |
25dbc73a | 5033 | |
a6aa5195 AM |
5034 | /* We also need to make an entry in the .rela.plt section. */ |
5035 | if (!doneone) | |
5036 | { | |
5037 | htab->relplt->size += sizeof (Elf32_External_Rela); | |
9d8504b1 | 5038 | |
4a3dc543 | 5039 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
5040 | { |
5041 | /* Allocate space for the unloaded relocations. */ | |
5042 | if (!info->shared) | |
5043 | { | |
5044 | if (ent->plt.offset | |
5045 | == (bfd_vma) htab->plt_initial_entry_size) | |
5046 | { | |
5047 | htab->srelplt2->size | |
5048 | += sizeof (Elf32_External_Rela) | |
5049 | * VXWORKS_PLTRESOLVE_RELOCS; | |
5050 | } | |
5051 | ||
5052 | htab->srelplt2->size | |
5053 | += sizeof (Elf32_External_Rela) | |
5054 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS; | |
5055 | } | |
5056 | ||
5057 | /* Every PLT entry has an associated GOT entry in | |
5058 | .got.plt. */ | |
5059 | htab->sgotplt->size += 4; | |
5060 | } | |
a6aa5195 AM |
5061 | doneone = TRUE; |
5062 | } | |
5063 | } | |
5064 | else | |
5065 | ent->plt.offset = (bfd_vma) -1; | |
a6aa5195 | 5066 | } |
2ce859a1 AM |
5067 | else |
5068 | ent->plt.offset = (bfd_vma) -1; | |
5069 | ||
5070 | if (!doneone) | |
5071 | { | |
5072 | h->plt.plist = NULL; | |
5073 | h->needs_plt = 0; | |
5074 | } | |
25dbc73a AM |
5075 | } |
5076 | else | |
5077 | { | |
a6aa5195 | 5078 | h->plt.plist = NULL; |
25dbc73a AM |
5079 | h->needs_plt = 0; |
5080 | } | |
5081 | ||
5082 | eh = (struct ppc_elf_link_hash_entry *) h; | |
5083 | if (eh->elf.got.refcount > 0) | |
5084 | { | |
d6e14abc AM |
5085 | bfd_boolean dyn; |
5086 | unsigned int need; | |
5087 | ||
25dbc73a AM |
5088 | /* Make sure this symbol is output as a dynamic symbol. */ |
5089 | if (eh->elf.dynindx == -1 | |
b099ab9f AM |
5090 | && !eh->elf.forced_local |
5091 | && htab->elf.dynamic_sections_created) | |
25dbc73a AM |
5092 | { |
5093 | if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) | |
b34976b6 | 5094 | return FALSE; |
25dbc73a | 5095 | } |
252b5132 | 5096 | |
d6e14abc AM |
5097 | need = 0; |
5098 | if ((eh->tls_mask & TLS_TLS) != 0) | |
25dbc73a | 5099 | { |
d6e14abc | 5100 | if ((eh->tls_mask & TLS_LD) != 0) |
252b5132 | 5101 | { |
d6e14abc AM |
5102 | if (!eh->elf.def_dynamic) |
5103 | /* We'll just use htab->tlsld_got.offset. This should | |
5104 | always be the case. It's a little odd if we have | |
5105 | a local dynamic reloc against a non-local symbol. */ | |
5106 | htab->tlsld_got.refcount += 1; | |
5107 | else | |
3b36f7e6 | 5108 | need += 8; |
252b5132 | 5109 | } |
d6e14abc AM |
5110 | if ((eh->tls_mask & TLS_GD) != 0) |
5111 | need += 8; | |
5112 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
5113 | need += 4; | |
5114 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3b36f7e6 | 5115 | need += 4; |
d6e14abc AM |
5116 | } |
5117 | else | |
5118 | need += 4; | |
5119 | if (need == 0) | |
5120 | eh->elf.got.offset = (bfd_vma) -1; | |
5121 | else | |
5122 | { | |
3b36f7e6 | 5123 | eh->elf.got.offset = allocate_got (htab, need); |
25dbc73a AM |
5124 | dyn = htab->elf.dynamic_sections_created; |
5125 | if ((info->shared | |
5126 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) | |
5127 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
5128 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
252b5132 | 5129 | { |
3b36f7e6 AM |
5130 | /* All the entries we allocated need relocs. |
5131 | Except LD only needs one. */ | |
d6e14abc AM |
5132 | if ((eh->tls_mask & TLS_LD) != 0 |
5133 | && eh->elf.def_dynamic) | |
3b36f7e6 AM |
5134 | need -= 4; |
5135 | htab->relgot->size += need * (sizeof (Elf32_External_Rela) / 4); | |
252b5132 | 5136 | } |
25dbc73a AM |
5137 | } |
5138 | } | |
5139 | else | |
5140 | eh->elf.got.offset = (bfd_vma) -1; | |
252b5132 | 5141 | |
b099ab9f AM |
5142 | if (eh->dyn_relocs == NULL |
5143 | || !htab->elf.dynamic_sections_created) | |
25dbc73a | 5144 | return TRUE; |
252b5132 | 5145 | |
25dbc73a AM |
5146 | /* In the shared -Bsymbolic case, discard space allocated for |
5147 | dynamic pc-relative relocs against symbols which turn out to be | |
5148 | defined in regular objects. For the normal shared case, discard | |
5149 | space for relocs that have become local due to symbol visibility | |
5150 | changes. */ | |
5151 | ||
5152 | if (info->shared) | |
5153 | { | |
5154 | /* Relocs that use pc_count are those that appear on a call insn, | |
1d483afe | 5155 | or certain REL relocs (see must_be_dyn_reloc) that can be |
25dbc73a AM |
5156 | generated via assembly. We want calls to protected symbols to |
5157 | resolve directly to the function rather than going via the plt. | |
5158 | If people want function pointer comparisons to work as expected | |
5159 | then they should avoid writing weird assembly. */ | |
5160 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
5161 | { | |
5162 | struct ppc_elf_dyn_relocs **pp; | |
5163 | ||
5164 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
252b5132 | 5165 | { |
25dbc73a AM |
5166 | p->count -= p->pc_count; |
5167 | p->pc_count = 0; | |
5168 | if (p->count == 0) | |
5169 | *pp = p->next; | |
5170 | else | |
5171 | pp = &p->next; | |
252b5132 | 5172 | } |
25dbc73a | 5173 | } |
252b5132 | 5174 | |
3348747a NS |
5175 | if (htab->is_vxworks) |
5176 | { | |
5177 | struct ppc_elf_dyn_relocs **pp; | |
5178 | ||
5179 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5180 | { | |
5181 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
5182 | *pp = p->next; | |
5183 | else | |
5184 | pp = &p->next; | |
5185 | } | |
5186 | } | |
5187 | ||
89200bf8 AM |
5188 | /* Discard relocs on undefined symbols that must be local. */ |
5189 | if (eh->dyn_relocs != NULL | |
5190 | && h->root.type == bfd_link_hash_undefined | |
5191 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
5192 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
5193 | eh->dyn_relocs = NULL; | |
5194 | ||
25dbc73a AM |
5195 | /* Also discard relocs on undefined weak syms with non-default |
5196 | visibility. */ | |
cab87ef9 AM |
5197 | if (eh->dyn_relocs != NULL |
5198 | && h->root.type == bfd_link_hash_undefweak) | |
25dbc73a | 5199 | { |
dfbb6ac9 AM |
5200 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
5201 | eh->dyn_relocs = NULL; | |
5202 | ||
5203 | /* Make sure undefined weak symbols are output as a dynamic | |
5204 | symbol in PIEs. */ | |
5205 | else if (h->dynindx == -1 | |
5206 | && !h->forced_local) | |
5207 | { | |
5208 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5209 | return FALSE; | |
5210 | } | |
25dbc73a AM |
5211 | } |
5212 | } | |
5213 | else if (ELIMINATE_COPY_RELOCS) | |
5214 | { | |
5215 | /* For the non-shared case, discard space for relocs against | |
5216 | symbols which turn out to need copy relocs or are not | |
5217 | dynamic. */ | |
7619e7c7 | 5218 | |
25dbc73a | 5219 | if (!h->non_got_ref |
25dbc73a AM |
5220 | && !h->def_regular) |
5221 | { | |
5222 | /* Make sure this symbol is output as a dynamic symbol. | |
5223 | Undefined weak syms won't yet be marked as dynamic. */ | |
5224 | if (h->dynindx == -1 | |
5225 | && !h->forced_local) | |
5226 | { | |
5227 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5228 | return FALSE; | |
5229 | } | |
7619e7c7 | 5230 | |
25dbc73a AM |
5231 | /* If that succeeded, we know we'll be keeping all the |
5232 | relocs. */ | |
5233 | if (h->dynindx != -1) | |
5234 | goto keep; | |
5235 | } | |
252b5132 | 5236 | |
25dbc73a | 5237 | eh->dyn_relocs = NULL; |
252b5132 | 5238 | |
25dbc73a AM |
5239 | keep: ; |
5240 | } | |
252b5132 | 5241 | |
25dbc73a AM |
5242 | /* Finally, allocate space. */ |
5243 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
5244 | { | |
5245 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
5246 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
5247 | } | |
252b5132 | 5248 | |
25dbc73a AM |
5249 | return TRUE; |
5250 | } | |
7619e7c7 | 5251 | |
625af618 AM |
5252 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
5253 | read-only sections. */ | |
7619e7c7 | 5254 | |
25dbc73a | 5255 | static bfd_boolean |
625af618 | 5256 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) |
25dbc73a | 5257 | { |
25dbc73a AM |
5258 | if (h->root.type == bfd_link_hash_indirect) |
5259 | return TRUE; | |
252b5132 | 5260 | |
25dbc73a AM |
5261 | if (h->root.type == bfd_link_hash_warning) |
5262 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 5263 | |
625af618 | 5264 | if (readonly_dynrelocs (h)) |
25dbc73a | 5265 | { |
625af618 | 5266 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; |
ee05f2fe | 5267 | |
625af618 AM |
5268 | /* Not an error, just cut short the traversal. */ |
5269 | return FALSE; | |
25dbc73a AM |
5270 | } |
5271 | return TRUE; | |
5272 | } | |
5273 | ||
5274 | /* Set the sizes of the dynamic sections. */ | |
5275 | ||
5276 | static bfd_boolean | |
5277 | ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
5278 | struct bfd_link_info *info) | |
5279 | { | |
5280 | struct ppc_elf_link_hash_table *htab; | |
5281 | asection *s; | |
5282 | bfd_boolean relocs; | |
5283 | bfd *ibfd; | |
7fce784e | 5284 | |
252b5132 | 5285 | #ifdef DEBUG |
25dbc73a | 5286 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
252b5132 | 5287 | #endif |
252b5132 | 5288 | |
25dbc73a AM |
5289 | htab = ppc_elf_hash_table (info); |
5290 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 | 5291 | |
25dbc73a AM |
5292 | if (elf_hash_table (info)->dynamic_sections_created) |
5293 | { | |
5294 | /* Set the contents of the .interp section to the interpreter. */ | |
5295 | if (info->executable) | |
5296 | { | |
5297 | s = bfd_get_section_by_name (htab->elf.dynobj, ".interp"); | |
5298 | BFD_ASSERT (s != NULL); | |
5299 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
5300 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
5301 | } | |
5302 | } | |
252b5132 | 5303 | |
4a3dc543 | 5304 | if (htab->plt_type == PLT_OLD) |
d7128ce4 | 5305 | htab->got_header_size = 16; |
4a3dc543 | 5306 | else if (htab->plt_type == PLT_NEW) |
d7128ce4 | 5307 | htab->got_header_size = 12; |
252b5132 | 5308 | |
25dbc73a AM |
5309 | /* Set up .got offsets for local syms, and space for local dynamic |
5310 | relocs. */ | |
5311 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5312 | { | |
5313 | bfd_signed_vma *local_got; | |
5314 | bfd_signed_vma *end_local_got; | |
5315 | char *lgot_masks; | |
5316 | bfd_size_type locsymcount; | |
5317 | Elf_Internal_Shdr *symtab_hdr; | |
7fce784e | 5318 | |
0c8d6e5c | 5319 | if (!is_ppc_elf (ibfd)) |
25dbc73a | 5320 | continue; |
7fce784e | 5321 | |
25dbc73a AM |
5322 | for (s = ibfd->sections; s != NULL; s = s->next) |
5323 | { | |
5324 | struct ppc_elf_dyn_relocs *p; | |
252b5132 | 5325 | |
25dbc73a AM |
5326 | for (p = ((struct ppc_elf_dyn_relocs *) |
5327 | elf_section_data (s)->local_dynrel); | |
5328 | p != NULL; | |
5329 | p = p->next) | |
5330 | { | |
5331 | if (!bfd_is_abs_section (p->sec) | |
5332 | && bfd_is_abs_section (p->sec->output_section)) | |
5333 | { | |
5334 | /* Input section has been discarded, either because | |
5335 | it is a copy of a linkonce section or due to | |
5336 | linker script /DISCARD/, so we'll be discarding | |
5337 | the relocs too. */ | |
7fce784e | 5338 | } |
3348747a NS |
5339 | else if (htab->is_vxworks |
5340 | && strcmp (p->sec->output_section->name, | |
5341 | ".tls_vars") == 0) | |
5342 | { | |
5343 | /* Relocations in vxworks .tls_vars sections are | |
5344 | handled specially by the loader. */ | |
5345 | } | |
25dbc73a | 5346 | else if (p->count != 0) |
7fce784e | 5347 | { |
25dbc73a AM |
5348 | elf_section_data (p->sec)->sreloc->size |
5349 | += p->count * sizeof (Elf32_External_Rela); | |
5350 | if ((p->sec->output_section->flags | |
5351 | & (SEC_READONLY | SEC_ALLOC)) | |
5352 | == (SEC_READONLY | SEC_ALLOC)) | |
5353 | info->flags |= DF_TEXTREL; | |
7fce784e | 5354 | } |
252b5132 | 5355 | } |
252b5132 | 5356 | } |
252b5132 | 5357 | |
25dbc73a AM |
5358 | local_got = elf_local_got_refcounts (ibfd); |
5359 | if (!local_got) | |
5360 | continue; | |
252b5132 | 5361 | |
0ffa91dd | 5362 | symtab_hdr = &elf_symtab_hdr (ibfd); |
25dbc73a AM |
5363 | locsymcount = symtab_hdr->sh_info; |
5364 | end_local_got = local_got + locsymcount; | |
5365 | lgot_masks = (char *) end_local_got; | |
25dbc73a AM |
5366 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
5367 | if (*local_got > 0) | |
5368 | { | |
d6e14abc AM |
5369 | unsigned int need = 0; |
5370 | if ((*lgot_masks & TLS_TLS) != 0) | |
25dbc73a | 5371 | { |
d6e14abc AM |
5372 | if ((*lgot_masks & TLS_GD) != 0) |
5373 | need += 8; | |
5374 | if ((*lgot_masks & TLS_LD) != 0) | |
5375 | htab->tlsld_got.refcount += 1; | |
5376 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
5377 | need += 4; | |
5378 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
5379 | need += 4; | |
25dbc73a | 5380 | } |
d6e14abc AM |
5381 | else |
5382 | need += 4; | |
5383 | if (need == 0) | |
5384 | *local_got = (bfd_vma) -1; | |
25dbc73a AM |
5385 | else |
5386 | { | |
3b36f7e6 | 5387 | *local_got = allocate_got (htab, need); |
25dbc73a | 5388 | if (info->shared) |
3b36f7e6 AM |
5389 | htab->relgot->size += (need |
5390 | * (sizeof (Elf32_External_Rela) / 4)); | |
25dbc73a AM |
5391 | } |
5392 | } | |
5393 | else | |
5394 | *local_got = (bfd_vma) -1; | |
5395 | } | |
252b5132 | 5396 | |
b7fcf6f6 AM |
5397 | /* Allocate space for global sym dynamic relocs. */ |
5398 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
5399 | ||
3b36f7e6 AM |
5400 | if (htab->tlsld_got.refcount > 0) |
5401 | { | |
5402 | htab->tlsld_got.offset = allocate_got (htab, 8); | |
5403 | if (info->shared) | |
5404 | htab->relgot->size += sizeof (Elf32_External_Rela); | |
5405 | } | |
5406 | else | |
5407 | htab->tlsld_got.offset = (bfd_vma) -1; | |
5408 | ||
4a3dc543 | 5409 | if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) |
3b36f7e6 AM |
5410 | { |
5411 | unsigned int g_o_t = 32768; | |
5412 | ||
4d962050 AM |
5413 | /* If we haven't allocated the header, do so now. When we get here, |
5414 | for old plt/got the got size will be 0 to 32764 (not allocated), | |
5415 | or 32780 to 65536 (header allocated). For new plt/got, the | |
5416 | corresponding ranges are 0 to 32768 and 32780 to 65536. */ | |
3b36f7e6 AM |
5417 | if (htab->got->size <= 32768) |
5418 | { | |
5419 | g_o_t = htab->got->size; | |
4a3dc543 | 5420 | if (htab->plt_type == PLT_OLD) |
4d962050 | 5421 | g_o_t += 4; |
3b36f7e6 AM |
5422 | htab->got->size += htab->got_header_size; |
5423 | } | |
3b36f7e6 AM |
5424 | |
5425 | htab->elf.hgot->root.u.def.value = g_o_t; | |
5426 | } | |
5427 | ||
d7128ce4 AM |
5428 | if (htab->glink != NULL && htab->glink->size != 0) |
5429 | { | |
5430 | htab->glink_pltresolve = htab->glink->size; | |
86b9da88 AM |
5431 | /* Space for the branch table. */ |
5432 | htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; | |
5433 | /* Pad out to align the start of PLTresolve. */ | |
5434 | htab->glink->size += -htab->glink->size & 15; | |
d7128ce4 | 5435 | htab->glink->size += GLINK_PLTRESOLVE; |
0ba07910 AM |
5436 | |
5437 | if (htab->emit_stub_syms) | |
5438 | { | |
5439 | struct elf_link_hash_entry *sh; | |
5440 | sh = elf_link_hash_lookup (&htab->elf, "__glink", | |
5441 | TRUE, FALSE, FALSE); | |
5442 | if (sh == NULL) | |
5443 | return FALSE; | |
5444 | if (sh->root.type == bfd_link_hash_new) | |
5445 | { | |
5446 | sh->root.type = bfd_link_hash_defined; | |
5447 | sh->root.u.def.section = htab->glink; | |
5448 | sh->root.u.def.value = htab->glink_pltresolve; | |
5449 | sh->ref_regular = 1; | |
5450 | sh->def_regular = 1; | |
5451 | sh->ref_regular_nonweak = 1; | |
5452 | sh->forced_local = 1; | |
5453 | sh->non_elf = 0; | |
5454 | } | |
5455 | sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", | |
5456 | TRUE, FALSE, FALSE); | |
5457 | if (sh == NULL) | |
5458 | return FALSE; | |
5459 | if (sh->root.type == bfd_link_hash_new) | |
5460 | { | |
5461 | sh->root.type = bfd_link_hash_defined; | |
5462 | sh->root.u.def.section = htab->glink; | |
5463 | sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; | |
5464 | sh->ref_regular = 1; | |
5465 | sh->def_regular = 1; | |
5466 | sh->ref_regular_nonweak = 1; | |
5467 | sh->forced_local = 1; | |
5468 | sh->non_elf = 0; | |
5469 | } | |
5470 | } | |
d7128ce4 AM |
5471 | } |
5472 | ||
25dbc73a AM |
5473 | /* We've now determined the sizes of the various dynamic sections. |
5474 | Allocate memory for them. */ | |
5475 | relocs = FALSE; | |
5476 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 5477 | { |
9d8504b1 PB |
5478 | bfd_boolean strip_section = TRUE; |
5479 | ||
25dbc73a AM |
5480 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
5481 | continue; | |
252b5132 | 5482 | |
25dbc73a | 5483 | if (s == htab->plt |
d7128ce4 | 5484 | || s == htab->glink |
644285ef | 5485 | || s == htab->got |
9d8504b1 | 5486 | || s == htab->sgotplt |
c456f082 AM |
5487 | || s == htab->sbss |
5488 | || s == htab->dynbss | |
5489 | || s == htab->dynsbss) | |
25dbc73a | 5490 | { |
9d8504b1 PB |
5491 | /* We'd like to strip these sections if they aren't needed, but if |
5492 | we've exported dynamic symbols from them we must leave them. | |
5493 | It's too late to tell BFD to get rid of the symbols. */ | |
7325306f | 5494 | if ((s == htab->plt || s == htab->got) && htab->elf.hplt != NULL) |
9d8504b1 | 5495 | strip_section = FALSE; |
25dbc73a AM |
5496 | /* Strip this section if we don't need it; see the |
5497 | comment below. */ | |
5498 | } | |
c9a2f333 AM |
5499 | else if (s == htab->sdata[0].section |
5500 | || s == htab->sdata[1].section) | |
25dbc73a | 5501 | { |
c9a2f333 | 5502 | /* Strip these too. */ |
25dbc73a | 5503 | } |
0112cd26 | 5504 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
25dbc73a | 5505 | { |
c456f082 | 5506 | if (s->size != 0) |
25dbc73a AM |
5507 | { |
5508 | /* Remember whether there are any relocation sections. */ | |
5509 | relocs = TRUE; | |
252b5132 | 5510 | |
25dbc73a AM |
5511 | /* We use the reloc_count field as a counter if we need |
5512 | to copy relocs into the output file. */ | |
5513 | s->reloc_count = 0; | |
252b5132 RH |
5514 | } |
5515 | } | |
25dbc73a AM |
5516 | else |
5517 | { | |
5518 | /* It's not one of our sections, so don't allocate space. */ | |
5519 | continue; | |
5520 | } | |
252b5132 | 5521 | |
9d8504b1 | 5522 | if (s->size == 0 && strip_section) |
25dbc73a | 5523 | { |
c456f082 AM |
5524 | /* If we don't need this section, strip it from the |
5525 | output file. This is mostly to handle .rela.bss and | |
5526 | .rela.plt. We must create both sections in | |
5527 | create_dynamic_sections, because they must be created | |
5528 | before the linker maps input sections to output | |
5529 | sections. The linker does that before | |
5530 | adjust_dynamic_symbol is called, and it is that | |
5531 | function which decides whether anything needs to go | |
5532 | into these sections. */ | |
8423293d | 5533 | s->flags |= SEC_EXCLUDE; |
25dbc73a AM |
5534 | continue; |
5535 | } | |
7fce784e | 5536 | |
d7128ce4 | 5537 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
644285ef AM |
5538 | continue; |
5539 | ||
25dbc73a AM |
5540 | /* Allocate memory for the section contents. */ |
5541 | s->contents = bfd_zalloc (htab->elf.dynobj, s->size); | |
5542 | if (s->contents == NULL) | |
5543 | return FALSE; | |
5544 | } | |
252b5132 | 5545 | |
25dbc73a | 5546 | if (htab->elf.dynamic_sections_created) |
7619e7c7 | 5547 | { |
25dbc73a AM |
5548 | /* Add some entries to the .dynamic section. We fill in the |
5549 | values later, in ppc_elf_finish_dynamic_sections, but we | |
5550 | must add the entries now so that we get the correct size for | |
5551 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
5552 | dynamic linker and used by the debugger. */ | |
5553 | #define add_dynamic_entry(TAG, VAL) \ | |
5554 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
252b5132 | 5555 | |
25dbc73a | 5556 | if (info->executable) |
7619e7c7 | 5557 | { |
25dbc73a AM |
5558 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
5559 | return FALSE; | |
7619e7c7 AM |
5560 | } |
5561 | ||
25dbc73a | 5562 | if (htab->plt != NULL && htab->plt->size != 0) |
7619e7c7 | 5563 | { |
25dbc73a AM |
5564 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
5565 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
5566 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
5567 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
5568 | return FALSE; | |
5569 | } | |
7619e7c7 | 5570 | |
d7128ce4 AM |
5571 | if (htab->glink != NULL && htab->glink->size != 0) |
5572 | { | |
1fe44d79 | 5573 | if (!add_dynamic_entry (DT_PPC_GOT, 0)) |
d7128ce4 AM |
5574 | return FALSE; |
5575 | } | |
5576 | ||
25dbc73a AM |
5577 | if (relocs) |
5578 | { | |
5579 | if (!add_dynamic_entry (DT_RELA, 0) | |
5580 | || !add_dynamic_entry (DT_RELASZ, 0) | |
5581 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
5582 | return FALSE; | |
5583 | } | |
7619e7c7 | 5584 | |
25dbc73a AM |
5585 | /* If any dynamic relocs apply to a read-only section, then we |
5586 | need a DT_TEXTREL entry. */ | |
5587 | if ((info->flags & DF_TEXTREL) == 0) | |
625af618 | 5588 | elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, |
25dbc73a | 5589 | info); |
7619e7c7 | 5590 | |
25dbc73a AM |
5591 | if ((info->flags & DF_TEXTREL) != 0) |
5592 | { | |
5593 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
5594 | return FALSE; | |
7619e7c7 | 5595 | } |
7a2b07ff NS |
5596 | if (htab->is_vxworks |
5597 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
5598 | return FALSE; | |
5599 | } | |
25dbc73a AM |
5600 | #undef add_dynamic_entry |
5601 | ||
7619e7c7 AM |
5602 | return TRUE; |
5603 | } | |
0eb4a168 AM |
5604 | |
5605 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ | |
5606 | ||
5607 | static bfd_boolean | |
5608 | ppc_elf_hash_symbol (struct elf_link_hash_entry *h) | |
5609 | { | |
5610 | if (h->plt.plist != NULL | |
5611 | && !h->def_regular | |
5612 | && (!h->pointer_equality_needed | |
5613 | || !h->ref_regular_nonweak)) | |
5614 | return FALSE; | |
5615 | ||
5616 | return _bfd_elf_hash_symbol (h); | |
5617 | } | |
25dbc73a AM |
5618 | \f |
5619 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
5620 | ||
5621 | static const int shared_stub_entry[] = | |
5622 | { | |
5623 | 0x7c0802a6, /* mflr 0 */ | |
5624 | 0x429f0005, /* bcl 20, 31, .Lxxx */ | |
5625 | 0x7d6802a6, /* mflr 11 */ | |
5626 | 0x3d6b0000, /* addis 11, 11, (xxx-.Lxxx)@ha */ | |
5627 | 0x396b0018, /* addi 11, 11, (xxx-.Lxxx)@l */ | |
5628 | 0x7c0803a6, /* mtlr 0 */ | |
5629 | 0x7d6903a6, /* mtctr 11 */ | |
5630 | 0x4e800420, /* bctr */ | |
5631 | }; | |
5632 | ||
5633 | static const int stub_entry[] = | |
5634 | { | |
5635 | 0x3d600000, /* lis 11,xxx@ha */ | |
5636 | 0x396b0000, /* addi 11,11,xxx@l */ | |
5637 | 0x7d6903a6, /* mtctr 11 */ | |
5638 | 0x4e800420, /* bctr */ | |
5639 | }; | |
5640 | ||
5641 | static bfd_boolean | |
5642 | ppc_elf_relax_section (bfd *abfd, | |
5643 | asection *isec, | |
5644 | struct bfd_link_info *link_info, | |
5645 | bfd_boolean *again) | |
5646 | { | |
5647 | struct one_fixup | |
5648 | { | |
5649 | struct one_fixup *next; | |
5650 | asection *tsec; | |
5651 | bfd_vma toff; | |
5652 | bfd_vma trampoff; | |
5653 | }; | |
7619e7c7 | 5654 | |
25dbc73a AM |
5655 | Elf_Internal_Shdr *symtab_hdr; |
5656 | bfd_byte *contents = NULL; | |
5657 | Elf_Internal_Sym *isymbuf = NULL; | |
5658 | Elf_Internal_Rela *internal_relocs = NULL; | |
5659 | Elf_Internal_Rela *irel, *irelend; | |
5660 | struct one_fixup *fixups = NULL; | |
9bc4e62b | 5661 | unsigned changes = 0; |
d7128ce4 | 5662 | struct ppc_elf_link_hash_table *htab; |
25dbc73a | 5663 | bfd_size_type trampoff; |
a6aa5195 | 5664 | asection *got2; |
7619e7c7 | 5665 | |
25dbc73a | 5666 | *again = FALSE; |
7619e7c7 | 5667 | |
c87b5a93 AM |
5668 | /* Nothing to do if there are no relocations, and no need to do |
5669 | anything with non-alloc sections. */ | |
5670 | if ((isec->flags & SEC_ALLOC) == 0 | |
5671 | || (isec->flags & SEC_RELOC) == 0 | |
5672 | || isec->reloc_count == 0) | |
25dbc73a | 5673 | return TRUE; |
7619e7c7 | 5674 | |
25dbc73a AM |
5675 | trampoff = (isec->size + 3) & (bfd_vma) -4; |
5676 | /* Space for a branch around any trampolines. */ | |
5677 | trampoff += 4; | |
7619e7c7 | 5678 | |
0ffa91dd | 5679 | symtab_hdr = &elf_symtab_hdr (abfd); |
7619e7c7 | 5680 | |
25dbc73a AM |
5681 | /* Get a copy of the native relocations. */ |
5682 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, | |
5683 | link_info->keep_memory); | |
5684 | if (internal_relocs == NULL) | |
5685 | goto error_return; | |
7619e7c7 | 5686 | |
d7128ce4 | 5687 | htab = ppc_elf_hash_table (link_info); |
a6aa5195 | 5688 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
7619e7c7 | 5689 | |
a6aa5195 | 5690 | irelend = internal_relocs + isec->reloc_count; |
25dbc73a | 5691 | for (irel = internal_relocs; irel < irelend; irel++) |
7619e7c7 | 5692 | { |
25dbc73a AM |
5693 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); |
5694 | bfd_vma symaddr, reladdr, toff, roff; | |
5695 | asection *tsec; | |
5696 | struct one_fixup *f; | |
5697 | size_t insn_offset = 0; | |
5698 | bfd_vma max_branch_offset, val; | |
5699 | bfd_byte *hit_addr; | |
5700 | unsigned long t0; | |
5701 | unsigned char sym_type; | |
7619e7c7 | 5702 | |
25dbc73a AM |
5703 | switch (r_type) |
5704 | { | |
5705 | case R_PPC_REL24: | |
5706 | case R_PPC_LOCAL24PC: | |
5707 | case R_PPC_PLTREL24: | |
5708 | max_branch_offset = 1 << 25; | |
5709 | break; | |
7619e7c7 | 5710 | |
25dbc73a AM |
5711 | case R_PPC_REL14: |
5712 | case R_PPC_REL14_BRTAKEN: | |
5713 | case R_PPC_REL14_BRNTAKEN: | |
5714 | max_branch_offset = 1 << 15; | |
5715 | break; | |
7619e7c7 | 5716 | |
25dbc73a AM |
5717 | default: |
5718 | continue; | |
5719 | } | |
7619e7c7 | 5720 | |
25dbc73a AM |
5721 | /* Get the value of the symbol referred to by the reloc. */ |
5722 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
5723 | { | |
5724 | /* A local symbol. */ | |
5725 | Elf_Internal_Sym *isym; | |
7fce784e | 5726 | |
25dbc73a AM |
5727 | /* Read this BFD's local symbols. */ |
5728 | if (isymbuf == NULL) | |
5729 | { | |
5730 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5731 | if (isymbuf == NULL) | |
5732 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
5733 | symtab_hdr->sh_info, 0, | |
5734 | NULL, NULL, NULL); | |
5735 | if (isymbuf == 0) | |
5736 | goto error_return; | |
5737 | } | |
5738 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
5739 | if (isym->st_shndx == SHN_UNDEF) | |
5740 | continue; /* We can't do anything with undefined symbols. */ | |
5741 | else if (isym->st_shndx == SHN_ABS) | |
5742 | tsec = bfd_abs_section_ptr; | |
5743 | else if (isym->st_shndx == SHN_COMMON) | |
5744 | tsec = bfd_com_section_ptr; | |
5745 | else | |
5746 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7fce784e | 5747 | |
25dbc73a AM |
5748 | toff = isym->st_value; |
5749 | sym_type = ELF_ST_TYPE (isym->st_info); | |
5750 | } | |
5751 | else | |
5752 | { | |
5753 | /* Global symbol handling. */ | |
5754 | unsigned long indx; | |
5755 | struct elf_link_hash_entry *h; | |
7619e7c7 | 5756 | |
25dbc73a AM |
5757 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
5758 | h = elf_sym_hashes (abfd)[indx]; | |
7619e7c7 | 5759 | |
25dbc73a AM |
5760 | while (h->root.type == bfd_link_hash_indirect |
5761 | || h->root.type == bfd_link_hash_warning) | |
5762 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 5763 | |
a6aa5195 AM |
5764 | tsec = NULL; |
5765 | toff = 0; | |
25dbc73a | 5766 | if (r_type == R_PPC_PLTREL24 |
a6aa5195 | 5767 | && htab->plt != NULL) |
25dbc73a | 5768 | { |
a6aa5195 AM |
5769 | struct plt_entry *ent = find_plt_ent (h, got2, irel->r_addend); |
5770 | ||
5771 | if (ent != NULL) | |
d7128ce4 | 5772 | { |
4a3dc543 | 5773 | if (htab->plt_type == PLT_NEW) |
a6aa5195 AM |
5774 | { |
5775 | tsec = htab->glink; | |
5776 | toff = ent->glink_offset; | |
5777 | } | |
5778 | else | |
5779 | { | |
5780 | tsec = htab->plt; | |
5781 | toff = ent->plt.offset; | |
5782 | } | |
d7128ce4 | 5783 | } |
25dbc73a | 5784 | } |
a6aa5195 AM |
5785 | if (tsec != NULL) |
5786 | ; | |
25dbc73a AM |
5787 | else if (h->root.type == bfd_link_hash_defined |
5788 | || h->root.type == bfd_link_hash_defweak) | |
5789 | { | |
5790 | tsec = h->root.u.def.section; | |
5791 | toff = h->root.u.def.value; | |
5792 | } | |
5793 | else | |
5794 | continue; | |
7619e7c7 | 5795 | |
25dbc73a AM |
5796 | sym_type = h->type; |
5797 | } | |
7619e7c7 | 5798 | |
25dbc73a AM |
5799 | /* If the branch and target are in the same section, you have |
5800 | no hope of adding stubs. We'll error out later should the | |
5801 | branch overflow. */ | |
5802 | if (tsec == isec) | |
5803 | continue; | |
5804 | ||
5805 | /* There probably isn't any reason to handle symbols in | |
5806 | SEC_MERGE sections; SEC_MERGE doesn't seem a likely | |
5807 | attribute for a code section, and we are only looking at | |
5808 | branches. However, implement it correctly here as a | |
5809 | reference for other target relax_section functions. */ | |
5810 | if (0 && tsec->sec_info_type == ELF_INFO_TYPE_MERGE) | |
5811 | { | |
5812 | /* At this stage in linking, no SEC_MERGE symbol has been | |
5813 | adjusted, so all references to such symbols need to be | |
5814 | passed through _bfd_merged_section_offset. (Later, in | |
5815 | relocate_section, all SEC_MERGE symbols *except* for | |
5816 | section symbols have been adjusted.) | |
5817 | ||
5818 | gas may reduce relocations against symbols in SEC_MERGE | |
5819 | sections to a relocation against the section symbol when | |
5820 | the original addend was zero. When the reloc is against | |
5821 | a section symbol we should include the addend in the | |
5822 | offset passed to _bfd_merged_section_offset, since the | |
5823 | location of interest is the original symbol. On the | |
5824 | other hand, an access to "sym+addend" where "sym" is not | |
5825 | a section symbol should not include the addend; Such an | |
5826 | access is presumed to be an offset from "sym"; The | |
5827 | location of interest is just "sym". */ | |
5828 | if (sym_type == STT_SECTION) | |
5829 | toff += irel->r_addend; | |
7619e7c7 | 5830 | |
25dbc73a AM |
5831 | toff = _bfd_merged_section_offset (abfd, &tsec, |
5832 | elf_section_data (tsec)->sec_info, | |
5833 | toff); | |
7619e7c7 | 5834 | |
25dbc73a AM |
5835 | if (sym_type != STT_SECTION) |
5836 | toff += irel->r_addend; | |
5837 | } | |
a6aa5195 AM |
5838 | /* PLTREL24 addends are special. */ |
5839 | else if (r_type != R_PPC_PLTREL24) | |
25dbc73a | 5840 | toff += irel->r_addend; |
7619e7c7 | 5841 | |
7de713b9 AM |
5842 | /* Attempted -shared link of non-pic code loses. */ |
5843 | if (tsec->output_section == NULL) | |
5844 | continue; | |
5845 | ||
25dbc73a | 5846 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; |
7619e7c7 | 5847 | |
25dbc73a AM |
5848 | roff = irel->r_offset; |
5849 | reladdr = isec->output_section->vma + isec->output_offset + roff; | |
7619e7c7 | 5850 | |
25dbc73a AM |
5851 | /* If the branch is in range, no need to do anything. */ |
5852 | if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset) | |
5853 | continue; | |
252b5132 | 5854 | |
25dbc73a AM |
5855 | /* Look for an existing fixup to this address. */ |
5856 | for (f = fixups; f ; f = f->next) | |
5857 | if (f->tsec == tsec && f->toff == toff) | |
5858 | break; | |
5859 | ||
5860 | if (f == NULL) | |
7619e7c7 | 5861 | { |
25dbc73a AM |
5862 | size_t size; |
5863 | unsigned long stub_rtype; | |
252b5132 | 5864 | |
25dbc73a AM |
5865 | val = trampoff - roff; |
5866 | if (val >= max_branch_offset) | |
5867 | /* Oh dear, we can't reach a trampoline. Don't try to add | |
5868 | one. We'll report an error later. */ | |
5869 | continue; | |
252b5132 | 5870 | |
25dbc73a AM |
5871 | if (link_info->shared) |
5872 | { | |
5873 | size = 4 * ARRAY_SIZE (shared_stub_entry); | |
5874 | insn_offset = 12; | |
5875 | stub_rtype = R_PPC_RELAX32PC; | |
5876 | } | |
5877 | else | |
5878 | { | |
5879 | size = 4 * ARRAY_SIZE (stub_entry); | |
5880 | insn_offset = 0; | |
5881 | stub_rtype = R_PPC_RELAX32; | |
5882 | } | |
dc810e39 | 5883 | |
25dbc73a AM |
5884 | if (R_PPC_RELAX32_PLT - R_PPC_RELAX32 |
5885 | != R_PPC_RELAX32PC_PLT - R_PPC_RELAX32PC) | |
5886 | abort (); | |
d7128ce4 AM |
5887 | if (tsec == htab->plt |
5888 | || tsec == htab->glink) | |
25dbc73a | 5889 | stub_rtype += R_PPC_RELAX32_PLT - R_PPC_RELAX32; |
252b5132 | 5890 | |
25dbc73a AM |
5891 | /* Hijack the old relocation. Since we need two |
5892 | relocations for this use a "composite" reloc. */ | |
5893 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
5894 | stub_rtype); | |
5895 | irel->r_offset = trampoff + insn_offset; | |
e7d92e2e AM |
5896 | if (r_type == R_PPC_PLTREL24) |
5897 | irel->r_addend = 0; | |
252b5132 | 5898 | |
25dbc73a AM |
5899 | /* Record the fixup so we don't do it again this section. */ |
5900 | f = bfd_malloc (sizeof (*f)); | |
5901 | f->next = fixups; | |
5902 | f->tsec = tsec; | |
5903 | f->toff = toff; | |
5904 | f->trampoff = trampoff; | |
5905 | fixups = f; | |
252b5132 | 5906 | |
25dbc73a | 5907 | trampoff += size; |
9bc4e62b | 5908 | changes++; |
25dbc73a AM |
5909 | } |
5910 | else | |
5911 | { | |
5912 | val = f->trampoff - roff; | |
5913 | if (val >= max_branch_offset) | |
5914 | continue; | |
252b5132 | 5915 | |
25dbc73a AM |
5916 | /* Nop out the reloc, since we're finalizing things here. */ |
5917 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
5918 | } | |
252b5132 | 5919 | |
25dbc73a AM |
5920 | /* Get the section contents. */ |
5921 | if (contents == NULL) | |
5922 | { | |
5923 | /* Get cached copy if it exists. */ | |
5924 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
5925 | contents = elf_section_data (isec)->this_hdr.contents; | |
5926 | else | |
5927 | { | |
5928 | /* Go get them off disk. */ | |
5929 | if (!bfd_malloc_and_get_section (abfd, isec, &contents)) | |
5930 | goto error_return; | |
5931 | } | |
5932 | } | |
252b5132 | 5933 | |
25dbc73a AM |
5934 | /* Fix up the existing branch to hit the trampoline. */ |
5935 | hit_addr = contents + roff; | |
5936 | switch (r_type) | |
5937 | { | |
5938 | case R_PPC_REL24: | |
5939 | case R_PPC_LOCAL24PC: | |
5940 | case R_PPC_PLTREL24: | |
5941 | t0 = bfd_get_32 (abfd, hit_addr); | |
5942 | t0 &= ~0x3fffffc; | |
5943 | t0 |= val & 0x3fffffc; | |
5944 | bfd_put_32 (abfd, t0, hit_addr); | |
5945 | break; | |
252b5132 | 5946 | |
25dbc73a AM |
5947 | case R_PPC_REL14: |
5948 | case R_PPC_REL14_BRTAKEN: | |
5949 | case R_PPC_REL14_BRNTAKEN: | |
5950 | t0 = bfd_get_32 (abfd, hit_addr); | |
5951 | t0 &= ~0xfffc; | |
5952 | t0 |= val & 0xfffc; | |
5953 | bfd_put_32 (abfd, t0, hit_addr); | |
5954 | break; | |
5955 | } | |
5956 | } | |
252b5132 | 5957 | |
25dbc73a | 5958 | /* Write out the trampolines. */ |
25dbc73a AM |
5959 | if (fixups != NULL) |
5960 | { | |
5961 | const int *stub; | |
5962 | bfd_byte *dest; | |
5963 | bfd_vma val; | |
5964 | int i, size; | |
252b5132 | 5965 | |
25dbc73a AM |
5966 | do |
5967 | { | |
5968 | struct one_fixup *f = fixups; | |
5969 | fixups = fixups->next; | |
5970 | free (f); | |
5971 | } | |
5972 | while (fixups); | |
252b5132 | 5973 | |
515ef31d | 5974 | contents = bfd_realloc_or_free (contents, trampoff); |
25dbc73a AM |
5975 | if (contents == NULL) |
5976 | goto error_return; | |
252b5132 | 5977 | |
25dbc73a AM |
5978 | isec->size = (isec->size + 3) & (bfd_vma) -4; |
5979 | /* Branch around the trampolines. */ | |
e7d92e2e | 5980 | val = B + trampoff - isec->size; |
25dbc73a AM |
5981 | dest = contents + isec->size; |
5982 | isec->size = trampoff; | |
5983 | bfd_put_32 (abfd, val, dest); | |
5984 | dest += 4; | |
252b5132 | 5985 | |
25dbc73a AM |
5986 | if (link_info->shared) |
5987 | { | |
5988 | stub = shared_stub_entry; | |
5989 | size = ARRAY_SIZE (shared_stub_entry); | |
5990 | } | |
5991 | else | |
5992 | { | |
5993 | stub = stub_entry; | |
5994 | size = ARRAY_SIZE (stub_entry); | |
5995 | } | |
252b5132 | 5996 | |
25dbc73a AM |
5997 | i = 0; |
5998 | while (dest < contents + trampoff) | |
252b5132 | 5999 | { |
25dbc73a AM |
6000 | bfd_put_32 (abfd, stub[i], dest); |
6001 | i++; | |
6002 | if (i == size) | |
6003 | i = 0; | |
6004 | dest += 4; | |
252b5132 | 6005 | } |
25dbc73a | 6006 | BFD_ASSERT (i == 0); |
252b5132 RH |
6007 | } |
6008 | ||
25dbc73a AM |
6009 | if (isymbuf != NULL |
6010 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 6011 | { |
25dbc73a AM |
6012 | if (! link_info->keep_memory) |
6013 | free (isymbuf); | |
252b5132 | 6014 | else |
25dbc73a AM |
6015 | { |
6016 | /* Cache the symbols for elf_link_input_bfd. */ | |
6017 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
6018 | } | |
252b5132 RH |
6019 | } |
6020 | ||
25dbc73a AM |
6021 | if (contents != NULL |
6022 | && elf_section_data (isec)->this_hdr.contents != contents) | |
6023 | { | |
9bc4e62b | 6024 | if (!changes && !link_info->keep_memory) |
25dbc73a AM |
6025 | free (contents); |
6026 | else | |
6027 | { | |
6028 | /* Cache the section contents for elf_link_input_bfd. */ | |
6029 | elf_section_data (isec)->this_hdr.contents = contents; | |
6030 | } | |
6031 | } | |
252b5132 | 6032 | |
9bc4e62b | 6033 | if (changes != 0) |
25dbc73a | 6034 | { |
9bc4e62b NS |
6035 | /* Append sufficient NOP relocs so we can write out relocation |
6036 | information for the trampolines. */ | |
6037 | Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) | |
6038 | * sizeof (*new_relocs)); | |
6039 | unsigned ix; | |
6040 | ||
6041 | if (!new_relocs) | |
6042 | goto error_return; | |
6043 | memcpy (new_relocs, internal_relocs, | |
6044 | isec->reloc_count * sizeof (*new_relocs)); | |
6045 | for (ix = changes; ix--;) | |
6046 | { | |
6047 | irel = new_relocs + ix + isec->reloc_count; | |
6048 | ||
6049 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
6050 | } | |
6051 | if (internal_relocs != elf_section_data (isec)->relocs) | |
25dbc73a | 6052 | free (internal_relocs); |
9bc4e62b NS |
6053 | elf_section_data (isec)->relocs = new_relocs; |
6054 | isec->reloc_count += changes; | |
6055 | elf_section_data (isec)->rel_hdr.sh_size | |
6056 | += changes * elf_section_data (isec)->rel_hdr.sh_entsize; | |
25dbc73a | 6057 | } |
9bc4e62b NS |
6058 | else if (elf_section_data (isec)->relocs != internal_relocs) |
6059 | free (internal_relocs); | |
252b5132 | 6060 | |
9bc4e62b | 6061 | *again = changes != 0; |
b34976b6 | 6062 | return TRUE; |
25dbc73a AM |
6063 | |
6064 | error_return: | |
6065 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) | |
6066 | free (isymbuf); | |
6067 | if (contents != NULL | |
6068 | && elf_section_data (isec)->this_hdr.contents != contents) | |
6069 | free (contents); | |
6070 | if (internal_relocs != NULL | |
6071 | && elf_section_data (isec)->relocs != internal_relocs) | |
6072 | free (internal_relocs); | |
6073 | return FALSE; | |
252b5132 | 6074 | } |
252b5132 | 6075 | \f |
8a696751 AM |
6076 | /* What to do when ld finds relocations against symbols defined in |
6077 | discarded sections. */ | |
6078 | ||
6079 | static unsigned int | |
6080 | ppc_elf_action_discarded (asection *sec) | |
6081 | { | |
6082 | if (strcmp (".fixup", sec->name) == 0) | |
6083 | return 0; | |
6084 | ||
6085 | if (strcmp (".got2", sec->name) == 0) | |
6086 | return 0; | |
6087 | ||
6088 | return _bfd_elf_default_action_discarded (sec); | |
6089 | } | |
c9a2f333 | 6090 | \f |
25dbc73a | 6091 | /* Fill in the address for a pointer generated in a linker section. */ |
252b5132 | 6092 | |
25dbc73a | 6093 | static bfd_vma |
76750a2f | 6094 | elf_finish_pointer_linker_section (bfd *input_bfd, |
25dbc73a AM |
6095 | elf_linker_section_t *lsect, |
6096 | struct elf_link_hash_entry *h, | |
6097 | bfd_vma relocation, | |
2bb04cf2 | 6098 | const Elf_Internal_Rela *rel) |
25dbc73a AM |
6099 | { |
6100 | elf_linker_section_pointers_t *linker_section_ptr; | |
252b5132 | 6101 | |
25dbc73a | 6102 | BFD_ASSERT (lsect != NULL); |
252b5132 | 6103 | |
25dbc73a | 6104 | if (h != NULL) |
252b5132 | 6105 | { |
25dbc73a AM |
6106 | /* Handle global symbol. */ |
6107 | struct ppc_elf_link_hash_entry *eh; | |
252b5132 | 6108 | |
25dbc73a | 6109 | eh = (struct ppc_elf_link_hash_entry *) h; |
76750a2f AM |
6110 | BFD_ASSERT (eh->elf.def_regular); |
6111 | linker_section_ptr = eh->linker_section_pointer; | |
25dbc73a AM |
6112 | } |
6113 | else | |
6114 | { | |
6115 | /* Handle local symbol. */ | |
6116 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
76750a2f | 6117 | |
0c8d6e5c | 6118 | BFD_ASSERT (is_ppc_elf (input_bfd)); |
25dbc73a | 6119 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); |
76750a2f AM |
6120 | linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; |
6121 | } | |
252b5132 | 6122 | |
76750a2f AM |
6123 | linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, |
6124 | rel->r_addend, | |
6125 | lsect); | |
6126 | BFD_ASSERT (linker_section_ptr != NULL); | |
25dbc73a | 6127 | |
76750a2f AM |
6128 | /* Offset will always be a multiple of four, so use the bottom bit |
6129 | as a "written" flag. */ | |
6130 | if ((linker_section_ptr->offset & 1) == 0) | |
6131 | { | |
6132 | bfd_put_32 (lsect->section->owner, | |
6133 | relocation + linker_section_ptr->addend, | |
6134 | lsect->section->contents + linker_section_ptr->offset); | |
6135 | linker_section_ptr->offset += 1; | |
252b5132 RH |
6136 | } |
6137 | ||
25dbc73a | 6138 | relocation = (lsect->section->output_offset |
76750a2f | 6139 | + linker_section_ptr->offset - 1 |
c9a2f333 | 6140 | - 0x8000); |
252b5132 | 6141 | |
25dbc73a AM |
6142 | #ifdef DEBUG |
6143 | fprintf (stderr, | |
6144 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
6145 | lsect->name, (long) relocation, (long) relocation); | |
6146 | #endif | |
252b5132 | 6147 | |
25dbc73a AM |
6148 | /* Subtract out the addend, because it will get added back in by the normal |
6149 | processing. */ | |
6150 | return relocation - linker_section_ptr->addend; | |
252b5132 | 6151 | } |
25dbc73a | 6152 | |
252b5132 RH |
6153 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
6154 | to handle the relocations for a section. | |
6155 | ||
6156 | The relocs are always passed as Rela structures; if the section | |
6157 | actually uses Rel structures, the r_addend field will always be | |
6158 | zero. | |
6159 | ||
6160 | This function is responsible for adjust the section contents as | |
6161 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 6162 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
6163 | necessary. |
6164 | ||
6165 | This function does not have to worry about setting the reloc | |
6166 | address or the reloc symbol index. | |
6167 | ||
6168 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
6169 | ||
6170 | LOCAL_SECTIONS is an array giving the section in the input file | |
6171 | corresponding to the st_shndx field of each local symbol. | |
6172 | ||
6173 | The global hash table entry for the global symbols can be found | |
6174 | via elf_sym_hashes (input_bfd). | |
6175 | ||
1049f94e | 6176 | When generating relocatable output, this function must handle |
252b5132 RH |
6177 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
6178 | going to be the section symbol corresponding to the output | |
6179 | section, which means that the addend must be adjusted | |
6180 | accordingly. */ | |
6181 | ||
b34976b6 | 6182 | static bfd_boolean |
55fd94b0 AM |
6183 | ppc_elf_relocate_section (bfd *output_bfd, |
6184 | struct bfd_link_info *info, | |
6185 | bfd *input_bfd, | |
6186 | asection *input_section, | |
6187 | bfd_byte *contents, | |
6188 | Elf_Internal_Rela *relocs, | |
6189 | Elf_Internal_Sym *local_syms, | |
6190 | asection **local_sections) | |
252b5132 | 6191 | { |
7619e7c7 AM |
6192 | Elf_Internal_Shdr *symtab_hdr; |
6193 | struct elf_link_hash_entry **sym_hashes; | |
6194 | struct ppc_elf_link_hash_table *htab; | |
6195 | Elf_Internal_Rela *rel; | |
6196 | Elf_Internal_Rela *relend; | |
6197 | Elf_Internal_Rela outrel; | |
6198 | bfd_byte *loc; | |
a6aa5195 | 6199 | asection *got2, *sreloc = NULL; |
252b5132 | 6200 | bfd_vma *local_got_offsets; |
b34976b6 | 6201 | bfd_boolean ret = TRUE; |
4fe5ca5b | 6202 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
3348747a | 6203 | bfd_boolean is_vxworks_tls; |
b34976b6 | 6204 | |
252b5132 | 6205 | #ifdef DEBUG |
d003868e AM |
6206 | _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " |
6207 | "%ld relocations%s", | |
6208 | input_bfd, input_section, | |
6209 | (long) input_section->reloc_count, | |
6210 | (info->relocatable) ? " (relocatable)" : ""); | |
252b5132 RH |
6211 | #endif |
6212 | ||
a6aa5195 AM |
6213 | got2 = bfd_get_section_by_name (input_bfd, ".got2"); |
6214 | ||
e47cd125 | 6215 | /* Initialize howto table if not already done. */ |
8da6118f | 6216 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
6217 | ppc_elf_howto_init (); |
6218 | ||
7619e7c7 | 6219 | htab = ppc_elf_hash_table (info); |
252b5132 | 6220 | local_got_offsets = elf_local_got_offsets (input_bfd); |
0ffa91dd | 6221 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
7619e7c7 | 6222 | sym_hashes = elf_sym_hashes (input_bfd); |
3348747a NS |
6223 | /* We have to handle relocations in vxworks .tls_vars sections |
6224 | specially, because the dynamic loader is 'weird'. */ | |
6225 | is_vxworks_tls = (htab->is_vxworks && info->shared | |
6226 | && !strcmp (input_section->output_section->name, | |
6227 | ".tls_vars")); | |
7619e7c7 AM |
6228 | rel = relocs; |
6229 | relend = relocs + input_section->reloc_count; | |
252b5132 RH |
6230 | for (; rel < relend; rel++) |
6231 | { | |
7619e7c7 AM |
6232 | enum elf_ppc_reloc_type r_type; |
6233 | bfd_vma addend; | |
6234 | bfd_reloc_status_type r; | |
6235 | Elf_Internal_Sym *sym; | |
6236 | asection *sec; | |
6237 | struct elf_link_hash_entry *h; | |
6238 | const char *sym_name; | |
252b5132 RH |
6239 | reloc_howto_type *howto; |
6240 | unsigned long r_symndx; | |
6241 | bfd_vma relocation; | |
7619e7c7 | 6242 | bfd_vma branch_bit, insn, from; |
7619e7c7 AM |
6243 | bfd_boolean unresolved_reloc; |
6244 | bfd_boolean warned; | |
6245 | unsigned int tls_type, tls_mask, tls_gd; | |
6246 | ||
55fd94b0 AM |
6247 | r_type = ELF32_R_TYPE (rel->r_info); |
6248 | sym = NULL; | |
6249 | sec = NULL; | |
6250 | h = NULL; | |
7619e7c7 AM |
6251 | unresolved_reloc = FALSE; |
6252 | warned = FALSE; | |
252b5132 | 6253 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 6254 | |
252b5132 RH |
6255 | if (r_symndx < symtab_hdr->sh_info) |
6256 | { | |
6257 | sym = local_syms + r_symndx; | |
6258 | sec = local_sections[r_symndx]; | |
26c61ae5 | 6259 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
252b5132 | 6260 | |
8517fae7 | 6261 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
6262 | } |
6263 | else | |
6264 | { | |
b2a8e766 AM |
6265 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
6266 | r_symndx, symtab_hdr, sym_hashes, | |
6267 | h, sec, relocation, | |
6268 | unresolved_reloc, warned); | |
9abc968f | 6269 | |
252b5132 | 6270 | sym_name = h->root.root.string; |
7619e7c7 AM |
6271 | } |
6272 | ||
ab96bf03 AM |
6273 | if (sec != NULL && elf_discarded_section (sec)) |
6274 | { | |
6275 | /* For relocs against symbols from removed linkonce sections, | |
6276 | or sections discarded by a linker script, we just want the | |
6277 | section contents zeroed. Avoid any special processing. */ | |
6278 | howto = NULL; | |
6279 | if (r_type < R_PPC_max) | |
6280 | howto = ppc_elf_howto_table[r_type]; | |
6281 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
6282 | rel->r_info = 0; | |
6283 | rel->r_addend = 0; | |
6284 | continue; | |
6285 | } | |
6286 | ||
6287 | if (info->relocatable) | |
6288 | { | |
6289 | if (got2 != NULL | |
6290 | && r_type == R_PPC_PLTREL24 | |
6291 | && rel->r_addend >= 32768) | |
6292 | { | |
6293 | /* R_PPC_PLTREL24 is rather special. If non-zero, the | |
6294 | addend specifies the GOT pointer offset within .got2. */ | |
6295 | rel->r_addend += got2->output_offset; | |
6296 | } | |
6297 | continue; | |
6298 | } | |
6299 | ||
7619e7c7 AM |
6300 | /* TLS optimizations. Replace instruction sequences and relocs |
6301 | based on information we collected in tls_optimize. We edit | |
6302 | RELOCS so that --emit-relocs will output something sensible | |
6303 | for the final instruction stream. */ | |
6304 | tls_mask = 0; | |
6305 | tls_gd = 0; | |
727fc41e AM |
6306 | if (h != NULL) |
6307 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
6308 | else if (local_got_offsets != NULL) | |
7619e7c7 | 6309 | { |
727fc41e AM |
6310 | char *lgot_masks; |
6311 | lgot_masks = (char *) (local_got_offsets + symtab_hdr->sh_info); | |
6312 | tls_mask = lgot_masks[r_symndx]; | |
7619e7c7 AM |
6313 | } |
6314 | ||
6315 | /* Ensure reloc mapping code below stays sane. */ | |
6316 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
6317 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
6318 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
6319 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
6320 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
6321 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
6322 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
6323 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
6324 | abort (); | |
6325 | switch (r_type) | |
6326 | { | |
6327 | default: | |
6328 | break; | |
6329 | ||
6330 | case R_PPC_GOT_TPREL16: | |
6331 | case R_PPC_GOT_TPREL16_LO: | |
6332 | if (tls_mask != 0 | |
6333 | && (tls_mask & TLS_TPREL) == 0) | |
6334 | { | |
6335 | bfd_vma insn; | |
4fe5ca5b | 6336 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
7619e7c7 AM |
6337 | insn &= 31 << 21; |
6338 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
4fe5ca5b | 6339 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
7619e7c7 AM |
6340 | r_type = R_PPC_TPREL16_HA; |
6341 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
6342 | } | |
6343 | break; | |
6344 | ||
6345 | case R_PPC_TLS: | |
6346 | if (tls_mask != 0 | |
6347 | && (tls_mask & TLS_TPREL) == 0) | |
6348 | { | |
6349 | bfd_vma insn, rtra; | |
6350 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
6351 | if ((insn & ((31 << 26) | (31 << 11))) | |
6352 | == ((31 << 26) | (2 << 11))) | |
6353 | rtra = insn & ((1 << 26) - (1 << 16)); | |
6354 | else if ((insn & ((31 << 26) | (31 << 16))) | |
6355 | == ((31 << 26) | (2 << 16))) | |
6356 | rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5); | |
6357 | else | |
6358 | abort (); | |
6359 | if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1) | |
6360 | /* add -> addi. */ | |
6361 | insn = 14 << 26; | |
6362 | else if ((insn & (31 << 1)) == 23 << 1 | |
6363 | && ((insn & (31 << 6)) < 14 << 6 | |
6364 | || ((insn & (31 << 6)) >= 16 << 6 | |
6365 | && (insn & (31 << 6)) < 24 << 6))) | |
6366 | /* load and store indexed -> dform. */ | |
6367 | insn = (32 | ((insn >> 6) & 31)) << 26; | |
6368 | else if ((insn & (31 << 1)) == 21 << 1 | |
6369 | && (insn & (0x1a << 6)) == 0) | |
6370 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
6371 | insn = (((58 | ((insn >> 6) & 4)) << 26) | |
6372 | | ((insn >> 6) & 1)); | |
6373 | else if ((insn & (31 << 1)) == 21 << 1 | |
6374 | && (insn & ((1 << 11) - (1 << 1))) == 341 << 1) | |
6375 | /* lwax -> lwa. */ | |
6376 | insn = (58 << 26) | 2; | |
6377 | else | |
6378 | abort (); | |
6379 | insn |= rtra; | |
6380 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
6381 | r_type = R_PPC_TPREL16_LO; | |
6382 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4fe5ca5b | 6383 | |
7619e7c7 | 6384 | /* Was PPC_TLS which sits on insn boundary, now |
4fe5ca5b GM |
6385 | PPC_TPREL16_LO which is at low-order half-word. */ |
6386 | rel->r_offset += d_offset; | |
7619e7c7 AM |
6387 | } |
6388 | break; | |
6389 | ||
6390 | case R_PPC_GOT_TLSGD16_HI: | |
6391 | case R_PPC_GOT_TLSGD16_HA: | |
6392 | tls_gd = TLS_TPRELGD; | |
6393 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
6394 | goto tls_gdld_hi; | |
6395 | break; | |
6396 | ||
6397 | case R_PPC_GOT_TLSLD16_HI: | |
6398 | case R_PPC_GOT_TLSLD16_HA: | |
6399 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
6400 | { | |
6401 | tls_gdld_hi: | |
6402 | if ((tls_mask & tls_gd) != 0) | |
6403 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
6404 | + R_PPC_GOT_TPREL16); | |
6405 | else | |
6406 | { | |
6407 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
4fe5ca5b | 6408 | rel->r_offset -= d_offset; |
7619e7c7 AM |
6409 | r_type = R_PPC_NONE; |
6410 | } | |
6411 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
6412 | } | |
6413 | break; | |
6414 | ||
6415 | case R_PPC_GOT_TLSGD16: | |
6416 | case R_PPC_GOT_TLSGD16_LO: | |
6417 | tls_gd = TLS_TPRELGD; | |
6418 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
b7fcf6f6 | 6419 | goto tls_ldgd_opt; |
7619e7c7 AM |
6420 | break; |
6421 | ||
6422 | case R_PPC_GOT_TLSLD16: | |
6423 | case R_PPC_GOT_TLSLD16_LO: | |
6424 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
6425 | { | |
3a71aa26 | 6426 | unsigned int insn1, insn2; |
b7fcf6f6 | 6427 | bfd_vma offset; |
7619e7c7 | 6428 | |
b7fcf6f6 | 6429 | tls_ldgd_opt: |
727fc41e AM |
6430 | offset = (bfd_vma) -1; |
6431 | /* If not using the newer R_PPC_TLSGD/LD to mark | |
6432 | __tls_get_addr calls, we must trust that the call | |
6433 | stays with its arg setup insns, ie. that the next | |
6434 | reloc is the __tls_get_addr call associated with | |
6435 | the current reloc. Edit both insns. */ | |
6436 | if (input_section->has_tls_get_addr_call | |
6437 | && rel + 1 < relend | |
6438 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
6439 | htab->tls_get_addr)) | |
6440 | offset = rel[1].r_offset; | |
b7fcf6f6 AM |
6441 | if ((tls_mask & tls_gd) != 0) |
6442 | { | |
6443 | /* IE */ | |
3a71aa26 AM |
6444 | insn1 = bfd_get_32 (output_bfd, |
6445 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
6446 | insn1 &= (1 << 26) - 1; |
6447 | insn1 |= 32 << 26; /* lwz */ | |
727fc41e AM |
6448 | if (offset != (bfd_vma) -1) |
6449 | { | |
6450 | rel[1].r_info | |
6451 | = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), | |
6452 | R_PPC_NONE); | |
6453 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
6454 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
6455 | } | |
b7fcf6f6 AM |
6456 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) |
6457 | + R_PPC_GOT_TPREL16); | |
6458 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
6459 | } | |
6460 | else | |
6461 | { | |
6462 | /* LE */ | |
6463 | insn1 = 0x3c620000; /* addis 3,2,0 */ | |
7619e7c7 AM |
6464 | if (tls_gd == 0) |
6465 | { | |
b7fcf6f6 | 6466 | /* Was an LD reloc. */ |
1d483afe AM |
6467 | for (r_symndx = 0; |
6468 | r_symndx < symtab_hdr->sh_info; | |
6469 | r_symndx++) | |
6470 | if (local_sections[r_symndx] == sec) | |
6471 | break; | |
6472 | if (r_symndx >= symtab_hdr->sh_info) | |
6473 | r_symndx = 0; | |
b7fcf6f6 | 6474 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
1d483afe AM |
6475 | if (r_symndx != 0) |
6476 | rel->r_addend -= (local_syms[r_symndx].st_value | |
6477 | + sec->output_offset | |
6478 | + sec->output_section->vma); | |
7619e7c7 | 6479 | } |
b7fcf6f6 AM |
6480 | r_type = R_PPC_TPREL16_HA; |
6481 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
727fc41e AM |
6482 | if (offset != (bfd_vma) -1) |
6483 | { | |
6484 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
6485 | rel[1].r_offset = offset + d_offset; | |
6486 | rel[1].r_addend = rel->r_addend; | |
6487 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
6488 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
6489 | } | |
b7fcf6f6 AM |
6490 | } |
6491 | bfd_put_32 (output_bfd, insn1, | |
6492 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
6493 | if (tls_gd == 0) |
6494 | { | |
6495 | /* We changed the symbol on an LD reloc. Start over | |
6496 | in order to get h, sym, sec etc. right. */ | |
6497 | rel--; | |
6498 | continue; | |
7619e7c7 | 6499 | } |
252b5132 | 6500 | } |
7619e7c7 | 6501 | break; |
727fc41e AM |
6502 | |
6503 | case R_PPC_TLSGD: | |
6504 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
6505 | { | |
6506 | unsigned int insn2; | |
6507 | bfd_vma offset = rel->r_offset; | |
6508 | ||
6509 | if ((tls_mask & TLS_TPRELGD) != 0) | |
6510 | { | |
6511 | /* IE */ | |
6512 | r_type = R_PPC_NONE; | |
6513 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
6514 | } | |
6515 | else | |
6516 | { | |
6517 | /* LE */ | |
6518 | r_type = R_PPC_TPREL16_LO; | |
6519 | rel->r_offset += d_offset; | |
6520 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
6521 | } | |
6522 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
6523 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
6524 | /* Zap the reloc on the _tls_get_addr call too. */ | |
6525 | BFD_ASSERT (offset == rel[1].r_offset); | |
6526 | rel[1].r_info = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), | |
6527 | R_PPC_NONE); | |
6528 | } | |
6529 | break; | |
6530 | ||
6531 | case R_PPC_TLSLD: | |
6532 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
6533 | { | |
6534 | unsigned int insn2; | |
6535 | ||
6536 | for (r_symndx = 0; | |
6537 | r_symndx < symtab_hdr->sh_info; | |
6538 | r_symndx++) | |
6539 | if (local_sections[r_symndx] == sec) | |
6540 | break; | |
6541 | if (r_symndx >= symtab_hdr->sh_info) | |
6542 | r_symndx = 0; | |
6543 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; | |
6544 | if (r_symndx != 0) | |
6545 | rel->r_addend -= (local_syms[r_symndx].st_value | |
6546 | + sec->output_offset | |
6547 | + sec->output_section->vma); | |
6548 | ||
6549 | rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
6550 | rel->r_offset += d_offset; | |
6551 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
6552 | bfd_put_32 (output_bfd, insn2, | |
6553 | contents + rel->r_offset - d_offset); | |
6554 | /* Zap the reloc on the _tls_get_addr call too. */ | |
6555 | BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); | |
6556 | rel[1].r_info = ELF32_R_INFO (ELF32_R_SYM (rel[1].r_info), | |
6557 | R_PPC_NONE); | |
6558 | rel--; | |
6559 | continue; | |
6560 | } | |
6561 | break; | |
7619e7c7 AM |
6562 | } |
6563 | ||
6564 | /* Handle other relocations that tweak non-addend part of insn. */ | |
6565 | branch_bit = 0; | |
6566 | switch (r_type) | |
6567 | { | |
6568 | default: | |
6569 | break; | |
6570 | ||
6571 | /* Branch taken prediction relocations. */ | |
6572 | case R_PPC_ADDR14_BRTAKEN: | |
6573 | case R_PPC_REL14_BRTAKEN: | |
6574 | branch_bit = BRANCH_PREDICT_BIT; | |
6575 | /* Fall thru */ | |
6576 | ||
4cc11e76 | 6577 | /* Branch not taken prediction relocations. */ |
7619e7c7 AM |
6578 | case R_PPC_ADDR14_BRNTAKEN: |
6579 | case R_PPC_REL14_BRNTAKEN: | |
6580 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
6581 | insn &= ~BRANCH_PREDICT_BIT; | |
6582 | insn |= branch_bit; | |
6583 | ||
6584 | from = (rel->r_offset | |
6585 | + input_section->output_offset | |
6586 | + input_section->output_section->vma); | |
6587 | ||
6588 | /* Invert 'y' bit if not the default. */ | |
6589 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
6590 | insn ^= BRANCH_PREDICT_BIT; | |
6591 | ||
6592 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
6593 | break; | |
252b5132 RH |
6594 | } |
6595 | ||
7619e7c7 AM |
6596 | addend = rel->r_addend; |
6597 | tls_type = 0; | |
6598 | howto = NULL; | |
55fd94b0 AM |
6599 | if (r_type < R_PPC_max) |
6600 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 6601 | switch (r_type) |
252b5132 RH |
6602 | { |
6603 | default: | |
7619e7c7 | 6604 | (*_bfd_error_handler) |
d003868e AM |
6605 | (_("%B: unknown relocation type %d for symbol %s"), |
6606 | input_bfd, (int) r_type, sym_name); | |
252b5132 RH |
6607 | |
6608 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 6609 | ret = FALSE; |
252b5132 RH |
6610 | continue; |
6611 | ||
7619e7c7 AM |
6612 | case R_PPC_NONE: |
6613 | case R_PPC_TLS: | |
727fc41e AM |
6614 | case R_PPC_TLSGD: |
6615 | case R_PPC_TLSLD: | |
7619e7c7 AM |
6616 | case R_PPC_EMB_MRKREF: |
6617 | case R_PPC_GNU_VTINHERIT: | |
6618 | case R_PPC_GNU_VTENTRY: | |
7595d193 L |
6619 | continue; |
6620 | ||
7619e7c7 AM |
6621 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
6622 | address in the GOT as relocation value instead of the | |
6623 | symbol's value itself. Also, create a GOT entry for the | |
6624 | symbol and put the symbol value there. */ | |
6625 | case R_PPC_GOT_TLSGD16: | |
6626 | case R_PPC_GOT_TLSGD16_LO: | |
6627 | case R_PPC_GOT_TLSGD16_HI: | |
6628 | case R_PPC_GOT_TLSGD16_HA: | |
6629 | tls_type = TLS_TLS | TLS_GD; | |
6630 | goto dogot; | |
6631 | ||
6632 | case R_PPC_GOT_TLSLD16: | |
6633 | case R_PPC_GOT_TLSLD16_LO: | |
6634 | case R_PPC_GOT_TLSLD16_HI: | |
6635 | case R_PPC_GOT_TLSLD16_HA: | |
6636 | tls_type = TLS_TLS | TLS_LD; | |
6637 | goto dogot; | |
6638 | ||
6639 | case R_PPC_GOT_TPREL16: | |
6640 | case R_PPC_GOT_TPREL16_LO: | |
6641 | case R_PPC_GOT_TPREL16_HI: | |
6642 | case R_PPC_GOT_TPREL16_HA: | |
6643 | tls_type = TLS_TLS | TLS_TPREL; | |
6644 | goto dogot; | |
6645 | ||
6646 | case R_PPC_GOT_DTPREL16: | |
6647 | case R_PPC_GOT_DTPREL16_LO: | |
6648 | case R_PPC_GOT_DTPREL16_HI: | |
6649 | case R_PPC_GOT_DTPREL16_HA: | |
6650 | tls_type = TLS_TLS | TLS_DTPREL; | |
6651 | goto dogot; | |
6652 | ||
6653 | case R_PPC_GOT16: | |
6654 | case R_PPC_GOT16_LO: | |
6655 | case R_PPC_GOT16_HI: | |
6656 | case R_PPC_GOT16_HA: | |
727fc41e | 6657 | tls_mask = 0; |
7619e7c7 AM |
6658 | dogot: |
6659 | { | |
6660 | /* Relocation is to the entry for this symbol in the global | |
6661 | offset table. */ | |
6662 | bfd_vma off; | |
6663 | bfd_vma *offp; | |
6664 | unsigned long indx; | |
6665 | ||
6666 | if (htab->got == NULL) | |
6667 | abort (); | |
6668 | ||
6669 | indx = 0; | |
6670 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 6671 | && (h == NULL |
f5385ebf | 6672 | || !h->def_dynamic)) |
7619e7c7 AM |
6673 | offp = &htab->tlsld_got.offset; |
6674 | else if (h != NULL) | |
6675 | { | |
6676 | bfd_boolean dyn; | |
6677 | dyn = htab->elf.dynamic_sections_created; | |
ee05f2fe | 6678 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
7619e7c7 AM |
6679 | || (info->shared |
6680 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
6681 | /* This is actually a static link, or it is a | |
6682 | -Bsymbolic link and the symbol is defined | |
6683 | locally, or the symbol was forced to be local | |
6684 | because of a version file. */ | |
6685 | ; | |
6686 | else | |
6687 | { | |
6688 | indx = h->dynindx; | |
6689 | unresolved_reloc = FALSE; | |
6690 | } | |
6691 | offp = &h->got.offset; | |
6692 | } | |
6693 | else | |
6694 | { | |
6695 | if (local_got_offsets == NULL) | |
6696 | abort (); | |
6697 | offp = &local_got_offsets[r_symndx]; | |
6698 | } | |
6699 | ||
6700 | /* The offset must always be a multiple of 4. We use the | |
6701 | least significant bit to record whether we have already | |
6702 | processed this entry. */ | |
6703 | off = *offp; | |
6704 | if ((off & 1) != 0) | |
6705 | off &= ~1; | |
6706 | else | |
6707 | { | |
70bccea4 AM |
6708 | unsigned int tls_m = (tls_mask |
6709 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
6710 | | TLS_TPREL | TLS_TPRELGD)); | |
6711 | ||
6712 | if (offp == &htab->tlsld_got.offset) | |
6713 | tls_m = TLS_LD; | |
6714 | else if (h == NULL | |
f5385ebf | 6715 | || !h->def_dynamic) |
70bccea4 AM |
6716 | tls_m &= ~TLS_LD; |
6717 | ||
6718 | /* We might have multiple got entries for this sym. | |
6719 | Initialize them all. */ | |
6720 | do | |
7619e7c7 | 6721 | { |
70bccea4 AM |
6722 | int tls_ty = 0; |
6723 | ||
6724 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 6725 | { |
70bccea4 AM |
6726 | tls_ty = TLS_TLS | TLS_LD; |
6727 | tls_m &= ~TLS_LD; | |
6728 | } | |
6729 | else if ((tls_m & TLS_GD) != 0) | |
6730 | { | |
6731 | tls_ty = TLS_TLS | TLS_GD; | |
6732 | tls_m &= ~TLS_GD; | |
6733 | } | |
6734 | else if ((tls_m & TLS_DTPREL) != 0) | |
6735 | { | |
6736 | tls_ty = TLS_TLS | TLS_DTPREL; | |
6737 | tls_m &= ~TLS_DTPREL; | |
6738 | } | |
6739 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6740 | { | |
6741 | tls_ty = TLS_TLS | TLS_TPREL; | |
6742 | tls_m = 0; | |
7619e7c7 | 6743 | } |
7619e7c7 | 6744 | |
70bccea4 | 6745 | /* Generate relocs for the dynamic linker. */ |
4e795f50 | 6746 | if ((info->shared || indx != 0) |
d6e14abc AM |
6747 | && (offp == &htab->tlsld_got.offset |
6748 | || h == NULL | |
4e795f50 AM |
6749 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
6750 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 6751 | { |
70bccea4 AM |
6752 | outrel.r_offset = (htab->got->output_section->vma |
6753 | + htab->got->output_offset | |
6754 | + off); | |
e515b051 | 6755 | outrel.r_addend = 0; |
70bccea4 AM |
6756 | if (tls_ty & (TLS_LD | TLS_GD)) |
6757 | { | |
6758 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
6759 | if (tls_ty == (TLS_TLS | TLS_GD)) |
6760 | { | |
6761 | loc = htab->relgot->contents; | |
6762 | loc += (htab->relgot->reloc_count++ | |
6763 | * sizeof (Elf32_External_Rela)); | |
6764 | bfd_elf32_swap_reloca_out (output_bfd, | |
6765 | &outrel, loc); | |
e515b051 | 6766 | outrel.r_offset += 4; |
70bccea4 AM |
6767 | outrel.r_info |
6768 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
6769 | } |
6770 | } | |
6771 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
6772 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
6773 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
6774 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
6775 | else if (indx == 0) | |
6776 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_RELATIVE); | |
6777 | else | |
6778 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); | |
d6e14abc | 6779 | if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) |
e515b051 AM |
6780 | { |
6781 | outrel.r_addend += relocation; | |
6782 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 6783 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 6784 | } |
70bccea4 AM |
6785 | loc = htab->relgot->contents; |
6786 | loc += (htab->relgot->reloc_count++ | |
6787 | * sizeof (Elf32_External_Rela)); | |
6788 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
6789 | } |
6790 | ||
70bccea4 AM |
6791 | /* Init the .got section contents if we're not |
6792 | emitting a reloc. */ | |
6793 | else | |
7619e7c7 | 6794 | { |
70bccea4 AM |
6795 | bfd_vma value = relocation; |
6796 | ||
7b609f53 AM |
6797 | if (tls_ty == (TLS_TLS | TLS_LD)) |
6798 | value = 1; | |
6799 | else if (tls_ty != 0) | |
70bccea4 | 6800 | { |
e1918d23 | 6801 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 6802 | if (tls_ty == (TLS_TLS | TLS_TPREL)) |
70bccea4 | 6803 | value += DTP_OFFSET - TP_OFFSET; |
70bccea4 | 6804 | |
7b609f53 AM |
6805 | if (tls_ty == (TLS_TLS | TLS_GD)) |
6806 | { | |
6807 | bfd_put_32 (output_bfd, value, | |
6808 | htab->got->contents + off + 4); | |
6809 | value = 1; | |
6810 | } | |
70bccea4 | 6811 | } |
70bccea4 AM |
6812 | bfd_put_32 (output_bfd, value, |
6813 | htab->got->contents + off); | |
7619e7c7 | 6814 | } |
70bccea4 AM |
6815 | |
6816 | off += 4; | |
6817 | if (tls_ty & (TLS_LD | TLS_GD)) | |
6818 | off += 4; | |
7619e7c7 | 6819 | } |
70bccea4 AM |
6820 | while (tls_m != 0); |
6821 | ||
6822 | off = *offp; | |
6823 | *offp = off | 1; | |
7619e7c7 AM |
6824 | } |
6825 | ||
6826 | if (off >= (bfd_vma) -2) | |
6827 | abort (); | |
6828 | ||
70bccea4 AM |
6829 | if ((tls_type & TLS_TLS) != 0) |
6830 | { | |
6831 | if (tls_type != (TLS_TLS | TLS_LD)) | |
6832 | { | |
6833 | if ((tls_mask & TLS_LD) != 0 | |
6834 | && !(h == NULL | |
f5385ebf | 6835 | || !h->def_dynamic)) |
70bccea4 AM |
6836 | off += 8; |
6837 | if (tls_type != (TLS_TLS | TLS_GD)) | |
6838 | { | |
6839 | if ((tls_mask & TLS_GD) != 0) | |
6840 | off += 8; | |
6841 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
6842 | { | |
6843 | if ((tls_mask & TLS_DTPREL) != 0) | |
6844 | off += 4; | |
6845 | } | |
6846 | } | |
6847 | } | |
6848 | } | |
6849 | ||
e87d4038 AM |
6850 | relocation = (htab->got->output_section->vma |
6851 | + htab->got->output_offset | |
6852 | + off | |
6853 | - SYM_VAL (htab->elf.hgot)); | |
7619e7c7 AM |
6854 | |
6855 | /* Addends on got relocations don't make much sense. | |
6856 | x+off@got is actually x@got+off, and since the got is | |
6857 | generated by a hash table traversal, the value in the | |
6858 | got at entry m+n bears little relation to the entry m. */ | |
6859 | if (addend != 0) | |
6860 | (*_bfd_error_handler) | |
d003868e AM |
6861 | (_("%B(%A+0x%lx): non-zero addend on %s reloc against `%s'"), |
6862 | input_bfd, | |
6863 | input_section, | |
7619e7c7 | 6864 | (long) rel->r_offset, |
7b609f53 | 6865 | howto->name, |
7619e7c7 AM |
6866 | sym_name); |
6867 | } | |
70bccea4 | 6868 | break; |
7619e7c7 | 6869 | |
252b5132 | 6870 | /* Relocations that need no special processing. */ |
7619e7c7 | 6871 | case R_PPC_LOCAL24PC: |
252b5132 RH |
6872 | /* It makes no sense to point a local relocation |
6873 | at a symbol not in this object. */ | |
7b609f53 | 6874 | if (unresolved_reloc) |
252b5132 | 6875 | { |
464e1740 ILT |
6876 | if (! (*info->callbacks->undefined_symbol) (info, |
6877 | h->root.root.string, | |
6878 | input_bfd, | |
6879 | input_section, | |
5cc7c785 | 6880 | rel->r_offset, |
b34976b6 AM |
6881 | TRUE)) |
6882 | return FALSE; | |
252b5132 RH |
6883 | continue; |
6884 | } | |
6885 | break; | |
6886 | ||
7619e7c7 AM |
6887 | case R_PPC_DTPREL16: |
6888 | case R_PPC_DTPREL16_LO: | |
6889 | case R_PPC_DTPREL16_HI: | |
6890 | case R_PPC_DTPREL16_HA: | |
e1918d23 | 6891 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
6892 | break; |
6893 | ||
70bccea4 AM |
6894 | /* Relocations that may need to be propagated if this is a shared |
6895 | object. */ | |
7619e7c7 AM |
6896 | case R_PPC_TPREL16: |
6897 | case R_PPC_TPREL16_LO: | |
6898 | case R_PPC_TPREL16_HI: | |
6899 | case R_PPC_TPREL16_HA: | |
e1918d23 | 6900 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
6901 | /* The TPREL16 relocs shouldn't really be used in shared |
6902 | libs as they will result in DT_TEXTREL being set, but | |
6903 | support them anyway. */ | |
6904 | goto dodyn; | |
6905 | ||
6906 | case R_PPC_TPREL32: | |
e1918d23 | 6907 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
6908 | goto dodyn; |
6909 | ||
6910 | case R_PPC_DTPREL32: | |
e1918d23 | 6911 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
6912 | goto dodyn; |
6913 | ||
e515b051 AM |
6914 | case R_PPC_DTPMOD32: |
6915 | relocation = 1; | |
6916 | addend = 0; | |
6917 | goto dodyn; | |
6918 | ||
d7128ce4 AM |
6919 | case R_PPC_REL16: |
6920 | case R_PPC_REL16_LO: | |
6921 | case R_PPC_REL16_HI: | |
6922 | case R_PPC_REL16_HA: | |
6923 | break; | |
6924 | ||
7619e7c7 | 6925 | case R_PPC_REL32: |
625af618 AM |
6926 | if (h == NULL || h == htab->elf.hgot) |
6927 | break; | |
6928 | /* fall through */ | |
6929 | ||
6930 | case R_PPC_ADDR32: | |
6931 | case R_PPC_ADDR16: | |
6932 | case R_PPC_ADDR16_LO: | |
6933 | case R_PPC_ADDR16_HI: | |
6934 | case R_PPC_ADDR16_HA: | |
6935 | case R_PPC_UADDR32: | |
6936 | case R_PPC_UADDR16: | |
6937 | goto dodyn; | |
6938 | ||
6939 | case R_PPC_REL24: | |
7619e7c7 AM |
6940 | case R_PPC_REL14: |
6941 | case R_PPC_REL14_BRTAKEN: | |
6942 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
6943 | /* If these relocations are not to a named symbol, they can be |
6944 | handled right here, no need to bother the dynamic linker. */ | |
89200bf8 | 6945 | if (SYMBOL_CALLS_LOCAL (info, h) |
3b36f7e6 | 6946 | || h == htab->elf.hgot) |
252b5132 | 6947 | break; |
70bccea4 | 6948 | /* fall through */ |
252b5132 | 6949 | |
7619e7c7 | 6950 | case R_PPC_ADDR24: |
7619e7c7 AM |
6951 | case R_PPC_ADDR14: |
6952 | case R_PPC_ADDR14_BRTAKEN: | |
6953 | case R_PPC_ADDR14_BRNTAKEN: | |
625af618 AM |
6954 | if (h != NULL && !info->shared) |
6955 | break; | |
6956 | /* fall through */ | |
6957 | ||
7619e7c7 | 6958 | dodyn: |
3348747a NS |
6959 | if ((input_section->flags & SEC_ALLOC) == 0 |
6960 | || is_vxworks_tls) | |
c87b5a93 | 6961 | break; |
c87b5a93 | 6962 | |
ee05f2fe | 6963 | if ((info->shared |
89200bf8 AM |
6964 | && !(h != NULL |
6965 | && ((h->root.type == bfd_link_hash_undefined | |
6966 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
6967 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
6968 | || (h->root.type == bfd_link_hash_undefweak | |
6969 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) | |
1d483afe | 6970 | && (must_be_dyn_reloc (info, r_type) |
f6c52c13 | 6971 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe AM |
6972 | || (ELIMINATE_COPY_RELOCS |
6973 | && !info->shared | |
ee05f2fe AM |
6974 | && h != NULL |
6975 | && h->dynindx != -1 | |
f5385ebf | 6976 | && !h->non_got_ref |
f5385ebf | 6977 | && !h->def_regular)) |
252b5132 | 6978 | { |
0bb2d96a | 6979 | int skip; |
252b5132 RH |
6980 | |
6981 | #ifdef DEBUG | |
55fd94b0 AM |
6982 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
6983 | "create relocation for %s\n", | |
70bccea4 AM |
6984 | (h && h->root.root.string |
6985 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
6986 | #endif |
6987 | ||
6988 | /* When generating a shared object, these relocations | |
70bccea4 AM |
6989 | are copied into the output file to be resolved at run |
6990 | time. */ | |
252b5132 RH |
6991 | if (sreloc == NULL) |
6992 | { | |
83bac4b0 NC |
6993 | sreloc = _bfd_elf_get_dynamic_reloc_section |
6994 | (input_bfd, input_section, /*rela?*/ TRUE); | |
6995 | if (sreloc == NULL) | |
b34976b6 | 6996 | return FALSE; |
252b5132 RH |
6997 | } |
6998 | ||
0bb2d96a | 6999 | skip = 0; |
c629eae0 JJ |
7000 | outrel.r_offset = |
7001 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
7002 | rel->r_offset); | |
0bb2d96a JJ |
7003 | if (outrel.r_offset == (bfd_vma) -1 |
7004 | || outrel.r_offset == (bfd_vma) -2) | |
7005 | skip = (int) outrel.r_offset; | |
252b5132 RH |
7006 | outrel.r_offset += (input_section->output_section->vma |
7007 | + input_section->output_offset); | |
7008 | ||
7009 | if (skip) | |
7010 | memset (&outrel, 0, sizeof outrel); | |
89200bf8 AM |
7011 | else if ((h != NULL |
7012 | && (h->root.type == bfd_link_hash_undefined | |
7013 | || h->root.type == bfd_link_hash_undefweak)) | |
7014 | || !SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 | 7015 | { |
7619e7c7 | 7016 | unresolved_reloc = FALSE; |
252b5132 RH |
7017 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
7018 | outrel.r_addend = rel->r_addend; | |
7019 | } | |
7020 | else | |
7021 | { | |
47388f4c AM |
7022 | outrel.r_addend = relocation + rel->r_addend; |
7023 | ||
252b5132 | 7024 | if (r_type == R_PPC_ADDR32) |
47388f4c | 7025 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); |
252b5132 RH |
7026 | else |
7027 | { | |
89200bf8 | 7028 | long indx = 0; |
252b5132 | 7029 | |
1d483afe | 7030 | if (r_symndx == 0 || bfd_is_abs_section (sec)) |
89200bf8 | 7031 | ; |
252b5132 RH |
7032 | else if (sec == NULL || sec->owner == NULL) |
7033 | { | |
7034 | bfd_set_error (bfd_error_bad_value); | |
89200bf8 | 7035 | ret = FALSE; |
252b5132 RH |
7036 | } |
7037 | else | |
7038 | { | |
7039 | asection *osec; | |
7040 | ||
47388f4c AM |
7041 | /* We are turning this relocation into one |
7042 | against a section symbol. It would be | |
7043 | proper to subtract the symbol's value, | |
7044 | osec->vma, from the emitted reloc addend, | |
7045 | but ld.so expects buggy relocs. */ | |
252b5132 RH |
7046 | osec = sec->output_section; |
7047 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
7048 | if (indx == 0) |
7049 | { | |
7050 | osec = htab->elf.text_index_section; | |
7051 | indx = elf_section_data (osec)->dynindx; | |
7052 | } | |
7053 | BFD_ASSERT (indx != 0); | |
252b5132 | 7054 | #ifdef DEBUG |
74541ad4 | 7055 | if (indx == 0) |
e460dd0d | 7056 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
55fd94b0 AM |
7057 | indx, osec->name, osec->flags, |
7058 | h->root.root.string); | |
252b5132 RH |
7059 | #endif |
7060 | } | |
7061 | ||
7062 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 RH |
7063 | } |
7064 | } | |
7065 | ||
947216bf AM |
7066 | loc = sreloc->contents; |
7067 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
7068 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 7069 | |
2243deae | 7070 | if (skip == -1) |
252b5132 | 7071 | continue; |
2243deae L |
7072 | |
7073 | /* This reloc will be computed at runtime. We clear the memory | |
7074 | so that it contains predictable value. */ | |
7075 | if (! skip | |
7076 | && ((input_section->flags & SEC_ALLOC) != 0 | |
7077 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
7078 | { | |
7079 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
7080 | addend = 0; | |
7081 | break; | |
7082 | } | |
252b5132 | 7083 | } |
252b5132 RH |
7084 | break; |
7085 | ||
b4a38de6 AM |
7086 | case R_PPC_RELAX32PC_PLT: |
7087 | case R_PPC_RELAX32_PLT: | |
a6aa5195 AM |
7088 | { |
7089 | struct plt_entry *ent = find_plt_ent (h, got2, addend); | |
7090 | ||
4a3dc543 | 7091 | if (htab->plt_type == PLT_NEW) |
a6aa5195 AM |
7092 | relocation = (htab->glink->output_section->vma |
7093 | + htab->glink->output_offset | |
7094 | + ent->glink_offset); | |
7095 | else | |
7096 | relocation = (htab->plt->output_section->vma | |
7097 | + htab->plt->output_offset | |
7098 | + ent->plt.offset); | |
a6aa5195 | 7099 | } |
b4a38de6 AM |
7100 | if (r_type == R_PPC_RELAX32_PLT) |
7101 | goto relax32; | |
7102 | /* Fall thru */ | |
7103 | ||
f31a141e AM |
7104 | case R_PPC_RELAX32PC: |
7105 | relocation -= (input_section->output_section->vma | |
7106 | + input_section->output_offset | |
7107 | + rel->r_offset - 4); | |
7108 | /* Fall thru */ | |
b4a38de6 | 7109 | |
deaaf2f3 | 7110 | case R_PPC_RELAX32: |
b4a38de6 | 7111 | relax32: |
9abc968f AM |
7112 | { |
7113 | unsigned long t0; | |
7114 | unsigned long t1; | |
7115 | ||
7116 | t0 = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
7117 | t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4); | |
7118 | ||
7119 | /* We're clearing the bits for R_PPC_ADDR16_HA | |
7120 | and R_PPC_ADDR16_LO here. */ | |
7121 | t0 &= ~0xffff; | |
7122 | t1 &= ~0xffff; | |
7123 | ||
7124 | /* t0 is HA, t1 is LO */ | |
7125 | relocation += addend; | |
7126 | t0 |= ((relocation + 0x8000) >> 16) & 0xffff; | |
7127 | t1 |= relocation & 0xffff; | |
7128 | ||
7129 | bfd_put_32 (output_bfd, t0, contents + rel->r_offset); | |
7130 | bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4); | |
9bc4e62b NS |
7131 | |
7132 | /* Rewrite the reloc and convert one of the trailing nop | |
7133 | relocs to describe this relocation. */ | |
7134 | BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); | |
7135 | /* The relocs are at the bottom 2 bytes */ | |
7136 | rel[0].r_offset += 2; | |
7137 | memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); | |
7138 | rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
7139 | rel[1].r_offset += 4; | |
7140 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
7141 | rel++; | |
9abc968f | 7142 | } |
8517fae7 | 7143 | continue; |
deaaf2f3 | 7144 | |
70bccea4 | 7145 | /* Indirect .sdata relocation. */ |
7619e7c7 | 7146 | case R_PPC_EMB_SDAI16: |
c9a2f333 | 7147 | BFD_ASSERT (htab->sdata[0].section != NULL); |
7619e7c7 | 7148 | relocation |
76750a2f AM |
7149 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], |
7150 | h, relocation, rel); | |
252b5132 RH |
7151 | break; |
7152 | ||
70bccea4 | 7153 | /* Indirect .sdata2 relocation. */ |
7619e7c7 | 7154 | case R_PPC_EMB_SDA2I16: |
c9a2f333 | 7155 | BFD_ASSERT (htab->sdata[1].section != NULL); |
7619e7c7 | 7156 | relocation |
76750a2f AM |
7157 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], |
7158 | h, relocation, rel); | |
252b5132 RH |
7159 | break; |
7160 | ||
70bccea4 AM |
7161 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
7162 | section, not the actual VMA. This is appropriate when generating | |
7163 | an embedded ELF object, for which the .got section acts like the | |
7164 | AIX .toc section. */ | |
7619e7c7 | 7165 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
3b4f3a11 AM |
7166 | if (sec == NULL || sec->output_section == NULL) |
7167 | { | |
7168 | unresolved_reloc = TRUE; | |
7169 | break; | |
7170 | } | |
7171 | BFD_ASSERT (strcmp (bfd_get_section_name (abfd, sec), ".got") == 0 | |
f12123c0 | 7172 | || strcmp (bfd_get_section_name (abfd, sec), ".cgot") == 0); |
252b5132 | 7173 | |
3b4f3a11 | 7174 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
7175 | break; |
7176 | ||
7619e7c7 | 7177 | case R_PPC_PLTREL24: |
252b5132 | 7178 | /* Relocation is to the entry for this symbol in the |
70bccea4 | 7179 | procedure linkage table. */ |
a6aa5195 AM |
7180 | { |
7181 | struct plt_entry *ent = find_plt_ent (h, got2, addend); | |
252b5132 | 7182 | |
a6aa5195 AM |
7183 | addend = 0; |
7184 | if (ent == NULL | |
7185 | || htab->plt == NULL) | |
7186 | { | |
7187 | /* We didn't make a PLT entry for this symbol. This | |
7188 | happens when statically linking PIC code, or when | |
7189 | using -Bsymbolic. */ | |
7190 | break; | |
7191 | } | |
252b5132 | 7192 | |
a6aa5195 | 7193 | unresolved_reloc = FALSE; |
4a3dc543 | 7194 | if (htab->plt_type == PLT_NEW) |
a6aa5195 AM |
7195 | relocation = (htab->glink->output_section->vma |
7196 | + htab->glink->output_offset | |
7197 | + ent->glink_offset); | |
7198 | else | |
7199 | relocation = (htab->plt->output_section->vma | |
7200 | + htab->plt->output_offset | |
7201 | + ent->plt.offset); | |
7202 | } | |
8da6118f | 7203 | break; |
252b5132 | 7204 | |
70bccea4 | 7205 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 7206 | case R_PPC_SDAREL16: |
252b5132 RH |
7207 | { |
7208 | const char *name; | |
7209 | ||
3b4f3a11 AM |
7210 | if (sec == NULL || sec->output_section == NULL) |
7211 | { | |
7212 | unresolved_reloc = TRUE; | |
7213 | break; | |
7214 | } | |
7215 | ||
252b5132 | 7216 | name = bfd_get_section_name (abfd, sec->output_section); |
0112cd26 | 7217 | if (! ((CONST_STRNEQ (name, ".sdata") |
5f819128 | 7218 | && (name[6] == 0 || name[6] == '.')) |
0112cd26 | 7219 | || (CONST_STRNEQ (name, ".sbss") |
5f819128 | 7220 | && (name[5] == 0 || name[5] == '.')))) |
252b5132 | 7221 | { |
55fd94b0 | 7222 | (*_bfd_error_handler) |
d003868e | 7223 | (_("%B: the target (%s) of a %s relocation is " |
55fd94b0 | 7224 | "in the wrong output section (%s)"), |
d003868e | 7225 | input_bfd, |
55fd94b0 AM |
7226 | sym_name, |
7227 | howto->name, | |
7228 | name); | |
252b5132 | 7229 | } |
e87d4038 | 7230 | addend -= SYM_VAL (htab->sdata[0].sym); |
252b5132 RH |
7231 | } |
7232 | break; | |
7233 | ||
70bccea4 | 7234 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 7235 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
7236 | { |
7237 | const char *name; | |
7238 | ||
3b4f3a11 AM |
7239 | if (sec == NULL || sec->output_section == NULL) |
7240 | { | |
7241 | unresolved_reloc = TRUE; | |
7242 | break; | |
7243 | } | |
7244 | ||
252b5132 | 7245 | name = bfd_get_section_name (abfd, sec->output_section); |
0112cd26 NC |
7246 | if (! (CONST_STRNEQ (name, ".sdata2") |
7247 | || CONST_STRNEQ (name, ".sbss2"))) | |
252b5132 | 7248 | { |
55fd94b0 | 7249 | (*_bfd_error_handler) |
d003868e | 7250 | (_("%B: the target (%s) of a %s relocation is " |
55fd94b0 | 7251 | "in the wrong output section (%s)"), |
d003868e | 7252 | input_bfd, |
55fd94b0 AM |
7253 | sym_name, |
7254 | howto->name, | |
7255 | name); | |
c3668558 | 7256 | |
252b5132 | 7257 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 7258 | ret = FALSE; |
252b5132 RH |
7259 | continue; |
7260 | } | |
e87d4038 | 7261 | addend -= SYM_VAL (htab->sdata[1].sym); |
252b5132 RH |
7262 | } |
7263 | break; | |
7264 | ||
70bccea4 | 7265 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 AM |
7266 | case R_PPC_EMB_SDA21: |
7267 | case R_PPC_EMB_RELSDA: | |
252b5132 RH |
7268 | { |
7269 | const char *name; | |
7270 | int reg; | |
7271 | ||
3b4f3a11 AM |
7272 | if (sec == NULL || sec->output_section == NULL) |
7273 | { | |
7274 | unresolved_reloc = TRUE; | |
7275 | break; | |
7276 | } | |
7277 | ||
252b5132 | 7278 | name = bfd_get_section_name (abfd, sec->output_section); |
0112cd26 | 7279 | if (((CONST_STRNEQ (name, ".sdata") |
5f819128 | 7280 | && (name[6] == 0 || name[6] == '.')) |
0112cd26 | 7281 | || (CONST_STRNEQ (name, ".sbss") |
5f819128 | 7282 | && (name[5] == 0 || name[5] == '.')))) |
252b5132 RH |
7283 | { |
7284 | reg = 13; | |
e87d4038 | 7285 | addend -= SYM_VAL (htab->sdata[0].sym); |
252b5132 | 7286 | } |
0112cd26 NC |
7287 | else if (CONST_STRNEQ (name, ".sdata2") |
7288 | || CONST_STRNEQ (name, ".sbss2")) | |
252b5132 RH |
7289 | { |
7290 | reg = 2; | |
e87d4038 | 7291 | addend -= SYM_VAL (htab->sdata[1].sym); |
252b5132 | 7292 | } |
8da6118f KH |
7293 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
7294 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
7295 | { |
7296 | reg = 0; | |
7297 | } | |
252b5132 RH |
7298 | else |
7299 | { | |
55fd94b0 | 7300 | (*_bfd_error_handler) |
d003868e | 7301 | (_("%B: the target (%s) of a %s relocation is " |
55fd94b0 | 7302 | "in the wrong output section (%s)"), |
d003868e | 7303 | input_bfd, |
55fd94b0 AM |
7304 | sym_name, |
7305 | howto->name, | |
7306 | name); | |
252b5132 RH |
7307 | |
7308 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 7309 | ret = FALSE; |
252b5132 RH |
7310 | continue; |
7311 | } | |
7312 | ||
7313 | if (r_type == R_PPC_EMB_SDA21) | |
7314 | { /* fill in register field */ | |
7619e7c7 | 7315 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
252b5132 | 7316 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
7619e7c7 | 7317 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
7318 | } |
7319 | } | |
7320 | break; | |
7321 | ||
70bccea4 | 7322 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
7323 | case R_PPC_SECTOFF: |
7324 | case R_PPC_SECTOFF_LO: | |
7325 | case R_PPC_SECTOFF_HI: | |
7326 | case R_PPC_SECTOFF_HA: | |
3b4f3a11 AM |
7327 | if (sec == NULL || sec->output_section == NULL) |
7328 | { | |
7329 | unresolved_reloc = TRUE; | |
7330 | break; | |
7331 | } | |
252b5132 | 7332 | addend -= sec->output_section->vma; |
252b5132 RH |
7333 | break; |
7334 | ||
70bccea4 | 7335 | /* Negative relocations. */ |
7619e7c7 AM |
7336 | case R_PPC_EMB_NADDR32: |
7337 | case R_PPC_EMB_NADDR16: | |
7338 | case R_PPC_EMB_NADDR16_LO: | |
7339 | case R_PPC_EMB_NADDR16_HI: | |
7340 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 7341 | addend -= 2 * relocation; |
252b5132 RH |
7342 | break; |
7343 | ||
7619e7c7 AM |
7344 | case R_PPC_COPY: |
7345 | case R_PPC_GLOB_DAT: | |
7346 | case R_PPC_JMP_SLOT: | |
7347 | case R_PPC_RELATIVE: | |
7348 | case R_PPC_PLT32: | |
7349 | case R_PPC_PLTREL32: | |
7350 | case R_PPC_PLT16_LO: | |
7351 | case R_PPC_PLT16_HI: | |
7352 | case R_PPC_PLT16_HA: | |
7353 | case R_PPC_ADDR30: | |
7354 | case R_PPC_EMB_RELSEC16: | |
7355 | case R_PPC_EMB_RELST_LO: | |
7356 | case R_PPC_EMB_RELST_HI: | |
7357 | case R_PPC_EMB_RELST_HA: | |
7358 | case R_PPC_EMB_BIT_FLD: | |
7359 | (*_bfd_error_handler) | |
d003868e AM |
7360 | (_("%B: relocation %s is not yet supported for symbol %s."), |
7361 | input_bfd, | |
7619e7c7 AM |
7362 | howto->name, |
7363 | sym_name); | |
252b5132 RH |
7364 | |
7365 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 7366 | ret = FALSE; |
252b5132 | 7367 | continue; |
7619e7c7 | 7368 | } |
252b5132 | 7369 | |
7619e7c7 AM |
7370 | /* Do any further special processing. */ |
7371 | switch (r_type) | |
7372 | { | |
7373 | default: | |
7374 | break; | |
7375 | ||
7376 | case R_PPC_ADDR16_HA: | |
d7128ce4 | 7377 | case R_PPC_REL16_HA: |
7619e7c7 AM |
7378 | case R_PPC_SECTOFF_HA: |
7379 | case R_PPC_TPREL16_HA: | |
7380 | case R_PPC_DTPREL16_HA: | |
7619e7c7 AM |
7381 | case R_PPC_EMB_NADDR16_HA: |
7382 | case R_PPC_EMB_RELST_HA: | |
7383 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 7384 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
7385 | 'sec' would be NULL, and we should leave the symbol |
7386 | alone (it will be set to zero elsewhere in the link). */ | |
5c5f6e17 AM |
7387 | if (sec == NULL) |
7388 | break; | |
7389 | /* Fall thru */ | |
7390 | ||
7391 | case R_PPC_PLT16_HA: | |
7392 | case R_PPC_GOT16_HA: | |
7393 | case R_PPC_GOT_TLSGD16_HA: | |
7394 | case R_PPC_GOT_TLSLD16_HA: | |
7395 | case R_PPC_GOT_TPREL16_HA: | |
7396 | case R_PPC_GOT_DTPREL16_HA: | |
7397 | /* Add 0x10000 if sign bit in 0:15 is set. | |
7398 | Bits 0:15 are not used. */ | |
7399 | addend += 0x8000; | |
7619e7c7 | 7400 | break; |
252b5132 RH |
7401 | } |
7402 | ||
252b5132 | 7403 | #ifdef DEBUG |
55fd94b0 AM |
7404 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
7405 | "offset = %ld, addend = %ld\n", | |
252b5132 | 7406 | howto->name, |
8da6118f | 7407 | (int) r_type, |
252b5132 RH |
7408 | sym_name, |
7409 | r_symndx, | |
7619e7c7 | 7410 | (long) rel->r_offset, |
8da6118f | 7411 | (long) addend); |
252b5132 RH |
7412 | #endif |
7413 | ||
7619e7c7 AM |
7414 | if (unresolved_reloc |
7415 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 7416 | && h->def_dynamic)) |
7619e7c7 AM |
7417 | { |
7418 | (*_bfd_error_handler) | |
d003868e AM |
7419 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
7420 | input_bfd, | |
7421 | input_section, | |
7619e7c7 | 7422 | (long) rel->r_offset, |
7b609f53 | 7423 | howto->name, |
7619e7c7 AM |
7424 | sym_name); |
7425 | ret = FALSE; | |
7426 | } | |
7427 | ||
252b5132 RH |
7428 | r = _bfd_final_link_relocate (howto, |
7429 | input_bfd, | |
7430 | input_section, | |
7431 | contents, | |
7619e7c7 | 7432 | rel->r_offset, |
252b5132 RH |
7433 | relocation, |
7434 | addend); | |
7435 | ||
7619e7c7 | 7436 | if (r != bfd_reloc_ok) |
252b5132 | 7437 | { |
7619e7c7 | 7438 | if (r == bfd_reloc_overflow) |
252b5132 | 7439 | { |
7619e7c7 AM |
7440 | if (warned) |
7441 | continue; | |
7442 | if (h != NULL | |
7443 | && h->root.type == bfd_link_hash_undefweak | |
dc1bc0c9 RH |
7444 | && howto->pc_relative) |
7445 | { | |
7446 | /* Assume this is a call protected by other code that | |
7447 | detect the symbol is undefined. If this is the case, | |
7448 | we can safely ignore the overflow. If not, the | |
7449 | program is hosed anyway, and a little warning isn't | |
7450 | going to help. */ | |
252b5132 | 7451 | |
dc1bc0c9 RH |
7452 | continue; |
7453 | } | |
252b5132 | 7454 | |
7619e7c7 | 7455 | if (! (*info->callbacks->reloc_overflow) (info, |
dfeffb9f | 7456 | (h ? &h->root : NULL), |
7619e7c7 AM |
7457 | sym_name, |
7458 | howto->name, | |
7459 | rel->r_addend, | |
7460 | input_bfd, | |
7461 | input_section, | |
7462 | rel->r_offset)) | |
7463 | return FALSE; | |
dc1bc0c9 RH |
7464 | } |
7465 | else | |
7466 | { | |
7619e7c7 | 7467 | (*_bfd_error_handler) |
d003868e AM |
7468 | (_("%B(%A+0x%lx): %s reloc against `%s': error %d"), |
7469 | input_bfd, input_section, | |
7b609f53 | 7470 | (long) rel->r_offset, howto->name, sym_name, (int) r); |
7619e7c7 | 7471 | ret = FALSE; |
252b5132 RH |
7472 | } |
7473 | } | |
7474 | } | |
7475 | ||
252b5132 RH |
7476 | #ifdef DEBUG |
7477 | fprintf (stderr, "\n"); | |
7478 | #endif | |
7479 | ||
7480 | return ret; | |
7481 | } | |
252b5132 | 7482 | \f |
a6aa5195 AM |
7483 | #define PPC_LO(v) ((v) & 0xffff) |
7484 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7485 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7486 | ||
25dbc73a AM |
7487 | /* Finish up dynamic symbol handling. We set the contents of various |
7488 | dynamic sections here. */ | |
c5fccbec | 7489 | |
b34976b6 | 7490 | static bfd_boolean |
25dbc73a AM |
7491 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
7492 | struct bfd_link_info *info, | |
7493 | struct elf_link_hash_entry *h, | |
7494 | Elf_Internal_Sym *sym) | |
e1a9cb8e | 7495 | { |
25dbc73a | 7496 | struct ppc_elf_link_hash_table *htab; |
a6aa5195 AM |
7497 | struct plt_entry *ent; |
7498 | bfd_boolean doneone; | |
e1a9cb8e | 7499 | |
25dbc73a AM |
7500 | #ifdef DEBUG |
7501 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
7502 | h->root.root.string); | |
7503 | #endif | |
e1a9cb8e | 7504 | |
25dbc73a AM |
7505 | htab = ppc_elf_hash_table (info); |
7506 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
e1a9cb8e | 7507 | |
a6aa5195 AM |
7508 | doneone = FALSE; |
7509 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
7510 | if (ent->plt.offset != (bfd_vma) -1) | |
7511 | { | |
7512 | if (!doneone) | |
7513 | { | |
7514 | Elf_Internal_Rela rela; | |
7515 | bfd_byte *loc; | |
7516 | bfd_vma reloc_index; | |
e1a9cb8e | 7517 | |
4a3dc543 | 7518 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
7519 | reloc_index = ent->plt.offset / 4; |
7520 | else | |
7521 | { | |
7522 | reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) | |
7523 | / htab->plt_slot_size); | |
7524 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES | |
4a3dc543 | 7525 | && htab->plt_type == PLT_OLD) |
9d8504b1 PB |
7526 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; |
7527 | } | |
7528 | ||
a6aa5195 AM |
7529 | /* This symbol has an entry in the procedure linkage table. |
7530 | Set it up. */ | |
4a3dc543 | 7531 | if (htab->plt_type == PLT_VXWORKS) |
a6aa5195 | 7532 | { |
9d8504b1 PB |
7533 | bfd_vma got_offset; |
7534 | const bfd_vma *plt_entry; | |
7535 | ||
7536 | /* The first three entries in .got.plt are reserved. */ | |
7537 | got_offset = (reloc_index + 3) * 4; | |
7538 | ||
7539 | /* Use the right PLT. */ | |
7540 | plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry | |
7541 | : ppc_elf_vxworks_plt_entry; | |
7542 | ||
7543 | /* Fill in the .plt on VxWorks. */ | |
7544 | if (info->shared) | |
7545 | { | |
9d8504b1 | 7546 | bfd_put_32 (output_bfd, |
e87d4038 | 7547 | plt_entry[0] | PPC_HA (got_offset), |
9d8504b1 PB |
7548 | htab->plt->contents + ent->plt.offset + 0); |
7549 | bfd_put_32 (output_bfd, | |
e87d4038 | 7550 | plt_entry[1] | PPC_LO (got_offset), |
9d8504b1 PB |
7551 | htab->plt->contents + ent->plt.offset + 4); |
7552 | } | |
7553 | else | |
7554 | { | |
e87d4038 | 7555 | bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); |
9d8504b1 PB |
7556 | |
7557 | bfd_put_32 (output_bfd, | |
e87d4038 | 7558 | plt_entry[0] | PPC_HA (got_loc), |
9d8504b1 PB |
7559 | htab->plt->contents + ent->plt.offset + 0); |
7560 | bfd_put_32 (output_bfd, | |
e87d4038 | 7561 | plt_entry[1] | PPC_LO (got_loc), |
9d8504b1 PB |
7562 | htab->plt->contents + ent->plt.offset + 4); |
7563 | } | |
7564 | ||
7565 | bfd_put_32 (output_bfd, plt_entry[2], | |
7566 | htab->plt->contents + ent->plt.offset + 8); | |
7567 | bfd_put_32 (output_bfd, plt_entry[3], | |
7568 | htab->plt->contents + ent->plt.offset + 12); | |
7569 | ||
7570 | /* This instruction is an immediate load. The value loaded is | |
7571 | the byte offset of the R_PPC_JMP_SLOT relocation from the | |
7572 | start of the .rela.plt section. The value is stored in the | |
7573 | low-order 16 bits of the load instruction. */ | |
7574 | /* NOTE: It appears that this is now an index rather than a | |
7575 | prescaled offset. */ | |
7576 | bfd_put_32 (output_bfd, | |
7577 | plt_entry[4] | reloc_index, | |
7578 | htab->plt->contents + ent->plt.offset + 16); | |
7579 | /* This instruction is a PC-relative branch whose target is | |
7580 | the start of the PLT section. The address of this branch | |
7581 | instruction is 20 bytes beyond the start of this PLT entry. | |
7582 | The address is encoded in bits 6-29, inclusive. The value | |
7583 | stored is right-shifted by two bits, permitting a 26-bit | |
7584 | offset. */ | |
7585 | bfd_put_32 (output_bfd, | |
7586 | (plt_entry[5] | |
7587 | | (-(ent->plt.offset + 20) & 0x03fffffc)), | |
7588 | htab->plt->contents + ent->plt.offset + 20); | |
7589 | bfd_put_32 (output_bfd, plt_entry[6], | |
7590 | htab->plt->contents + ent->plt.offset + 24); | |
7591 | bfd_put_32 (output_bfd, plt_entry[7], | |
7592 | htab->plt->contents + ent->plt.offset + 28); | |
7593 | ||
7594 | /* Fill in the GOT entry corresponding to this PLT slot with | |
7595 | the address immediately after the the "bctr" instruction | |
7596 | in this PLT entry. */ | |
7597 | bfd_put_32 (output_bfd, (htab->plt->output_section->vma | |
7598 | + htab->plt->output_offset | |
7599 | + ent->plt.offset + 16), | |
7600 | htab->sgotplt->contents + got_offset); | |
7601 | ||
7602 | if (!info->shared) | |
7603 | { | |
7604 | /* Fill in a couple of entries in .rela.plt.unloaded. */ | |
7605 | loc = htab->srelplt2->contents | |
7606 | + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index | |
7607 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) | |
7608 | * sizeof (Elf32_External_Rela)); | |
7609 | ||
7610 | /* Provide the @ha relocation for the first instruction. */ | |
7611 | rela.r_offset = (htab->plt->output_section->vma | |
7612 | + htab->plt->output_offset | |
7613 | + ent->plt.offset + 2); | |
636ce3f5 | 7614 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
7615 | R_PPC_ADDR16_HA); |
7616 | rela.r_addend = got_offset; | |
7617 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
7618 | loc += sizeof (Elf32_External_Rela); | |
7619 | ||
7620 | /* Provide the @l relocation for the second instruction. */ | |
7621 | rela.r_offset = (htab->plt->output_section->vma | |
7622 | + htab->plt->output_offset | |
7623 | + ent->plt.offset + 6); | |
636ce3f5 | 7624 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
7625 | R_PPC_ADDR16_LO); |
7626 | rela.r_addend = got_offset; | |
7627 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
7628 | loc += sizeof (Elf32_External_Rela); | |
7629 | ||
7630 | /* Provide a relocation for the GOT entry corresponding to this | |
7631 | PLT slot. Point it at the middle of the .plt entry. */ | |
7632 | rela.r_offset = (htab->sgotplt->output_section->vma | |
7633 | + htab->sgotplt->output_offset | |
7634 | + got_offset); | |
7325306f | 7635 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, |
9d8504b1 PB |
7636 | R_PPC_ADDR32); |
7637 | rela.r_addend = ent->plt.offset + 16; | |
7638 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
7639 | } | |
7640 | ||
7641 | /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. | |
7642 | In particular, the offset for the relocation is not the | |
7643 | address of the PLT entry for this function, as specified | |
7644 | by the ABI. Instead, the offset is set to the address of | |
7645 | the GOT slot for this function. See EABI 4.4.4.1. */ | |
7646 | rela.r_offset = (htab->sgotplt->output_section->vma | |
7647 | + htab->sgotplt->output_offset | |
7648 | + got_offset); | |
7649 | ||
a6aa5195 AM |
7650 | } |
7651 | else | |
7652 | { | |
9d8504b1 PB |
7653 | rela.r_offset = (htab->plt->output_section->vma |
7654 | + htab->plt->output_offset | |
7655 | + ent->plt.offset); | |
4a3dc543 | 7656 | if (htab->plt_type == PLT_OLD) |
9d8504b1 PB |
7657 | { |
7658 | /* We don't need to fill in the .plt. The ppc dynamic | |
7659 | linker will fill it in. */ | |
7660 | } | |
7661 | else | |
7662 | { | |
7663 | bfd_vma val = (htab->glink_pltresolve + ent->plt.offset | |
7664 | + htab->glink->output_section->vma | |
7665 | + htab->glink->output_offset); | |
7666 | bfd_put_32 (output_bfd, val, | |
7667 | htab->plt->contents + ent->plt.offset); | |
7668 | } | |
a6aa5195 | 7669 | } |
e1a9cb8e | 7670 | |
a6aa5195 | 7671 | /* Fill in the entry in the .rela.plt section. */ |
a6aa5195 AM |
7672 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); |
7673 | rela.r_addend = 0; | |
e1a9cb8e | 7674 | |
a6aa5195 AM |
7675 | loc = (htab->relplt->contents |
7676 | + reloc_index * sizeof (Elf32_External_Rela)); | |
7677 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
e1a9cb8e | 7678 | |
a6aa5195 AM |
7679 | if (!h->def_regular) |
7680 | { | |
0eb4a168 AM |
7681 | /* Mark the symbol as undefined, rather than as |
7682 | defined in the .plt section. Leave the value if | |
7683 | there were any relocations where pointer equality | |
7684 | matters (this is a clue for the dynamic linker, to | |
7685 | make function pointer comparisons work between an | |
7686 | application and shared library), otherwise set it | |
7687 | to zero. */ | |
a6aa5195 | 7688 | sym->st_shndx = SHN_UNDEF; |
0eb4a168 | 7689 | if (!h->pointer_equality_needed) |
a6aa5195 | 7690 | sym->st_value = 0; |
0eb4a168 AM |
7691 | else if (!h->ref_regular_nonweak) |
7692 | { | |
625af618 AM |
7693 | /* This breaks function pointer comparisons, but |
7694 | that is better than breaking tests for a NULL | |
0eb4a168 | 7695 | function pointer. */ |
0eb4a168 AM |
7696 | sym->st_value = 0; |
7697 | } | |
a6aa5195 AM |
7698 | } |
7699 | doneone = TRUE; | |
7700 | } | |
e1a9cb8e | 7701 | |
4a3dc543 | 7702 | if (htab->plt_type == PLT_NEW) |
a6aa5195 AM |
7703 | { |
7704 | bfd_vma plt; | |
7705 | unsigned char *p; | |
e1a9cb8e | 7706 | |
a6aa5195 AM |
7707 | plt = (ent->plt.offset |
7708 | + htab->plt->output_section->vma | |
7709 | + htab->plt->output_offset); | |
7710 | p = (unsigned char *) htab->glink->contents + ent->glink_offset; | |
e1a9cb8e | 7711 | |
a6aa5195 AM |
7712 | if (info->shared || info->pie) |
7713 | { | |
7714 | bfd_vma got = 0; | |
7715 | ||
7716 | if (ent->addend >= 32768) | |
7717 | got = (ent->addend | |
7718 | + ent->sec->output_section->vma | |
7719 | + ent->sec->output_offset); | |
7720 | else if (htab->elf.hgot != NULL) | |
e87d4038 | 7721 | got = SYM_VAL (htab->elf.hgot); |
a6aa5195 AM |
7722 | |
7723 | plt -= got; | |
7724 | ||
7725 | if (plt + 0x8000 < 0x10000) | |
7726 | { | |
7727 | bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); | |
7728 | p += 4; | |
7729 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7730 | p += 4; | |
7731 | bfd_put_32 (output_bfd, BCTR, p); | |
7732 | p += 4; | |
7733 | bfd_put_32 (output_bfd, NOP, p); | |
7734 | p += 4; | |
7735 | } | |
7736 | else | |
7737 | { | |
7738 | bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); | |
7739 | p += 4; | |
7740 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7741 | p += 4; | |
7742 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7743 | p += 4; | |
7744 | bfd_put_32 (output_bfd, BCTR, p); | |
7745 | p += 4; | |
7746 | } | |
7747 | } | |
7748 | else | |
7749 | { | |
7750 | bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); | |
7751 | p += 4; | |
7752 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7753 | p += 4; | |
7754 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7755 | p += 4; | |
7756 | bfd_put_32 (output_bfd, BCTR, p); | |
7757 | p += 4; | |
28e99bb6 AM |
7758 | |
7759 | /* We only need one non-PIC glink stub. */ | |
7760 | break; | |
a6aa5195 AM |
7761 | } |
7762 | } | |
7763 | else | |
7764 | break; | |
7765 | } | |
e1a9cb8e | 7766 | |
25dbc73a AM |
7767 | if (h->needs_copy) |
7768 | { | |
7769 | asection *s; | |
7770 | Elf_Internal_Rela rela; | |
7771 | bfd_byte *loc; | |
e1a9cb8e | 7772 | |
25dbc73a | 7773 | /* This symbols needs a copy reloc. Set it up. */ |
e1a9cb8e | 7774 | |
25dbc73a AM |
7775 | #ifdef DEBUG |
7776 | fprintf (stderr, ", copy"); | |
7777 | #endif | |
e1a9cb8e | 7778 | |
25dbc73a | 7779 | BFD_ASSERT (h->dynindx != -1); |
86bbe32f | 7780 | |
4dc4a9a5 | 7781 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
7782 | s = htab->relsbss; |
7783 | else | |
7784 | s = htab->relbss; | |
7785 | BFD_ASSERT (s != NULL); | |
e1a9cb8e | 7786 | |
e87d4038 | 7787 | rela.r_offset = SYM_VAL (h); |
25dbc73a AM |
7788 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
7789 | rela.r_addend = 0; | |
7790 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
7791 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
7792 | } | |
e1a9cb8e | 7793 | |
25dbc73a AM |
7794 | #ifdef DEBUG |
7795 | fprintf (stderr, "\n"); | |
7796 | #endif | |
e1a9cb8e | 7797 | |
25dbc73a | 7798 | /* Mark some specially defined symbols as absolute. */ |
9d8504b1 PB |
7799 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
7800 | || (!htab->is_vxworks | |
7801 | && (h == htab->elf.hgot | |
7802 | || strcmp (h->root.root.string, | |
7803 | "_PROCEDURE_LINKAGE_TABLE_") == 0))) | |
25dbc73a | 7804 | sym->st_shndx = SHN_ABS; |
e1a9cb8e | 7805 | |
25dbc73a AM |
7806 | return TRUE; |
7807 | } | |
7808 | \f | |
7809 | static enum elf_reloc_type_class | |
7810 | ppc_elf_reloc_type_class (const Elf_Internal_Rela *rela) | |
e1a9cb8e | 7811 | { |
25dbc73a AM |
7812 | switch (ELF32_R_TYPE (rela->r_info)) |
7813 | { | |
7814 | case R_PPC_RELATIVE: | |
7815 | return reloc_class_relative; | |
7816 | case R_PPC_REL24: | |
7817 | case R_PPC_ADDR24: | |
7818 | case R_PPC_JMP_SLOT: | |
7819 | return reloc_class_plt; | |
7820 | case R_PPC_COPY: | |
7821 | return reloc_class_copy; | |
7822 | default: | |
7823 | return reloc_class_normal; | |
7824 | } | |
e1a9cb8e | 7825 | } |
25dbc73a AM |
7826 | \f |
7827 | /* Finish up the dynamic sections. */ | |
e1a9cb8e | 7828 | |
25dbc73a AM |
7829 | static bfd_boolean |
7830 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, | |
7831 | struct bfd_link_info *info) | |
e1a9cb8e | 7832 | { |
25dbc73a | 7833 | asection *sdyn; |
9d8504b1 | 7834 | asection *splt; |
25dbc73a | 7835 | struct ppc_elf_link_hash_table *htab; |
1fe44d79 | 7836 | bfd_vma got; |
e87d4038 AM |
7837 | bfd *dynobj; |
7838 | bfd_boolean ret = TRUE; | |
e1a9cb8e | 7839 | |
25dbc73a AM |
7840 | #ifdef DEBUG |
7841 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
7842 | #endif | |
6b0817e5 | 7843 | |
25dbc73a | 7844 | htab = ppc_elf_hash_table (info); |
9d8504b1 PB |
7845 | dynobj = elf_hash_table (info)->dynobj; |
7846 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
7847 | if (htab->is_vxworks) | |
7848 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
7849 | else | |
7850 | splt = NULL; | |
e1a9cb8e | 7851 | |
1fe44d79 AM |
7852 | got = 0; |
7853 | if (htab->elf.hgot != NULL) | |
e87d4038 | 7854 | got = SYM_VAL (htab->elf.hgot); |
1fe44d79 | 7855 | |
25dbc73a | 7856 | if (htab->elf.dynamic_sections_created) |
e1a9cb8e | 7857 | { |
25dbc73a | 7858 | Elf32_External_Dyn *dyncon, *dynconend; |
e1a9cb8e | 7859 | |
25dbc73a | 7860 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
86bbe32f | 7861 | |
25dbc73a AM |
7862 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
7863 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
7864 | for (; dyncon < dynconend; dyncon++) | |
7865 | { | |
7866 | Elf_Internal_Dyn dyn; | |
7867 | asection *s; | |
e1a9cb8e | 7868 | |
9d8504b1 | 7869 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
86bbe32f | 7870 | |
25dbc73a AM |
7871 | switch (dyn.d_tag) |
7872 | { | |
7873 | case DT_PLTGOT: | |
9d8504b1 PB |
7874 | if (htab->is_vxworks) |
7875 | s = htab->sgotplt; | |
7876 | else | |
7877 | s = htab->plt; | |
25dbc73a AM |
7878 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
7879 | break; | |
86bbe32f | 7880 | |
25dbc73a AM |
7881 | case DT_PLTRELSZ: |
7882 | dyn.d_un.d_val = htab->relplt->size; | |
7883 | break; | |
e1a9cb8e | 7884 | |
25dbc73a AM |
7885 | case DT_JMPREL: |
7886 | s = htab->relplt; | |
7887 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
7888 | break; | |
2f89ff8d | 7889 | |
1fe44d79 AM |
7890 | case DT_PPC_GOT: |
7891 | dyn.d_un.d_ptr = got; | |
d7128ce4 AM |
7892 | break; |
7893 | ||
9d8504b1 PB |
7894 | case DT_RELASZ: |
7895 | if (htab->is_vxworks) | |
7896 | { | |
7897 | if (htab->relplt) | |
7898 | dyn.d_un.d_ptr -= htab->relplt->size; | |
7899 | break; | |
7900 | } | |
7901 | continue; | |
7902 | ||
25dbc73a | 7903 | default: |
7a2b07ff NS |
7904 | if (htab->is_vxworks |
7905 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
7906 | break; | |
25dbc73a AM |
7907 | continue; |
7908 | } | |
4c45e5c9 | 7909 | |
25dbc73a AM |
7910 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
7911 | } | |
7912 | } | |
4c45e5c9 | 7913 | |
3b36f7e6 | 7914 | if (htab->got != NULL) |
25dbc73a | 7915 | { |
e79f5955 AM |
7916 | if (htab->elf.hgot->root.u.def.section == htab->got |
7917 | || htab->elf.hgot->root.u.def.section == htab->sgotplt) | |
e87d4038 | 7918 | { |
e79f5955 | 7919 | unsigned char *p = htab->elf.hgot->root.u.def.section->contents; |
2f89ff8d | 7920 | |
e87d4038 AM |
7921 | p += htab->elf.hgot->root.u.def.value; |
7922 | if (htab->plt_type == PLT_OLD) | |
e79f5955 AM |
7923 | { |
7924 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 | |
7925 | so that a function can easily find the address of | |
7926 | _GLOBAL_OFFSET_TABLE_. */ | |
7927 | BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 | |
7928 | < htab->elf.hgot->root.u.def.section->size); | |
7929 | bfd_put_32 (output_bfd, 0x4e800021, p - 4); | |
7930 | } | |
3b36f7e6 | 7931 | |
e87d4038 | 7932 | if (sdyn != NULL) |
e79f5955 AM |
7933 | { |
7934 | bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; | |
7935 | BFD_ASSERT (htab->elf.hgot->root.u.def.value | |
7936 | < htab->elf.hgot->root.u.def.section->size); | |
7937 | bfd_put_32 (output_bfd, val, p); | |
7938 | } | |
e87d4038 AM |
7939 | } |
7940 | else | |
7941 | { | |
7942 | (*_bfd_error_handler) (_("%s not defined in linker created %s"), | |
7943 | htab->elf.hgot->root.root.string, | |
e79f5955 AM |
7944 | (htab->sgotplt != NULL |
7945 | ? htab->sgotplt->name : htab->got->name)); | |
e87d4038 AM |
7946 | bfd_set_error (bfd_error_bad_value); |
7947 | ret = FALSE; | |
7948 | } | |
25dbc73a AM |
7949 | |
7950 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; | |
7951 | } | |
7952 | ||
9d8504b1 PB |
7953 | /* Fill in the first entry in the VxWorks procedure linkage table. */ |
7954 | if (splt && splt->size > 0) | |
7955 | { | |
7956 | /* Use the right PLT. */ | |
7957 | static const bfd_vma *plt_entry = NULL; | |
7958 | plt_entry = info->shared ? | |
7959 | ppc_elf_vxworks_pic_plt0_entry : ppc_elf_vxworks_plt0_entry; | |
7960 | ||
7961 | if (!info->shared) | |
7962 | { | |
e87d4038 | 7963 | bfd_vma got_value = SYM_VAL (htab->elf.hgot); |
9d8504b1 | 7964 | |
e87d4038 | 7965 | bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), |
9d8504b1 | 7966 | splt->contents + 0); |
e87d4038 | 7967 | bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), |
9d8504b1 PB |
7968 | splt->contents + 4); |
7969 | } | |
7970 | else | |
7971 | { | |
7972 | bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); | |
7973 | bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); | |
7974 | } | |
7975 | bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); | |
7976 | bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); | |
7977 | bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); | |
7978 | bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); | |
7979 | bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); | |
7980 | bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); | |
7981 | ||
7982 | if (! info->shared) | |
7983 | { | |
7984 | Elf_Internal_Rela rela; | |
7985 | bfd_byte *loc; | |
7986 | ||
7987 | loc = htab->srelplt2->contents; | |
7988 | ||
7989 | /* Output the @ha relocation for the first instruction. */ | |
7990 | rela.r_offset = (htab->plt->output_section->vma | |
7991 | + htab->plt->output_offset | |
7992 | + 2); | |
636ce3f5 | 7993 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
7994 | rela.r_addend = 0; |
7995 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
7996 | loc += sizeof (Elf32_External_Rela); | |
7997 | ||
7998 | /* Output the @l relocation for the second instruction. */ | |
7999 | rela.r_offset = (htab->plt->output_section->vma | |
8000 | + htab->plt->output_offset | |
8001 | + 6); | |
636ce3f5 | 8002 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
8003 | rela.r_addend = 0; |
8004 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
8005 | loc += sizeof (Elf32_External_Rela); | |
8006 | ||
8007 | /* Fix up the remaining relocations. They may have the wrong | |
8008 | symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
8009 | in which symbols were output. */ | |
8010 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
8011 | { | |
8012 | Elf_Internal_Rela rel; | |
8013 | ||
8014 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 8015 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
8016 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
8017 | loc += sizeof (Elf32_External_Rela); | |
8018 | ||
8019 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 8020 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
8021 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
8022 | loc += sizeof (Elf32_External_Rela); | |
8023 | ||
8024 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
7325306f | 8025 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); |
9d8504b1 PB |
8026 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
8027 | loc += sizeof (Elf32_External_Rela); | |
8028 | } | |
8029 | } | |
8030 | } | |
8031 | ||
d7128ce4 AM |
8032 | if (htab->glink != NULL && htab->glink->contents != NULL) |
8033 | { | |
8034 | unsigned char *p; | |
8035 | unsigned char *endp; | |
a6aa5195 | 8036 | bfd_vma res0; |
d7128ce4 | 8037 | unsigned int i; |
a6aa5195 AM |
8038 | |
8039 | /* | |
8040 | * PIC glink code is the following: | |
8041 | * | |
8042 | * # ith PLT code stub. | |
8043 | * addis 11,30,(plt+(i-1)*4-got)@ha | |
8044 | * lwz 11,(plt+(i-1)*4-got)@l(11) | |
8045 | * mtctr 11 | |
8046 | * bctr | |
8047 | * | |
8048 | * # A table of branches, one for each plt entry. | |
176a0d42 | 8049 | * # The idea is that the plt call stub loads ctr and r11 with these |
a6aa5195 AM |
8050 | * # addresses, so (r11 - res_0) gives the plt index * 4. |
8051 | * res_0: b PLTresolve | |
8052 | * res_1: b PLTresolve | |
8053 | * . | |
8054 | * # Some number of entries towards the end can be nops | |
8055 | * res_n_m3: nop | |
8056 | * res_n_m2: nop | |
8057 | * res_n_m1: | |
8058 | * | |
8059 | * PLTresolve: | |
8060 | * addis 11,11,(1f-res_0)@ha | |
8061 | * mflr 0 | |
8062 | * bcl 20,31,1f | |
8063 | * 1: addi 11,11,(1b-res_0)@l | |
8064 | * mflr 12 | |
8065 | * mtlr 0 | |
8066 | * sub 11,11,12 # r11 = index * 4 | |
8067 | * addis 12,12,(got+4-1b)@ha | |
8068 | * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve | |
8069 | * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address | |
8070 | * mtctr 0 | |
8071 | * add 0,11,11 | |
8072 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
8073 | * bctr | |
8074 | */ | |
8075 | static const unsigned int pic_plt_resolve[] = | |
8076 | { | |
8077 | ADDIS_11_11, | |
8078 | MFLR_0, | |
8079 | BCL_20_31, | |
8080 | ADDI_11_11, | |
8081 | MFLR_12, | |
8082 | MTLR_0, | |
8083 | SUB_11_11_12, | |
8084 | ADDIS_12_12, | |
8085 | LWZ_0_12, | |
8086 | LWZ_12_12, | |
8087 | MTCTR_0, | |
8088 | ADD_0_11_11, | |
8089 | ADD_11_0_11, | |
8090 | BCTR, | |
8091 | NOP, | |
8092 | NOP | |
8093 | }; | |
8094 | ||
176a0d42 AM |
8095 | /* |
8096 | * Non-PIC glink code is a little simpler. | |
8097 | * | |
8098 | * # ith PLT code stub. | |
8099 | * lis 11,(plt+(i-1)*4)@ha | |
8100 | * lwz 11,(plt+(i-1)*4)@l(11) | |
8101 | * mtctr 11 | |
8102 | * bctr | |
8103 | * | |
8104 | * The branch table is the same, then comes | |
8105 | * | |
8106 | * PLTresolve: | |
8107 | * lis 12,(got+4)@ha | |
8108 | * addis 11,11,(-res_0)@ha | |
8109 | * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve | |
8110 | * addi 11,11,(-res_0)@l # r11 = index * 4 | |
8111 | * mtctr 0 | |
8112 | * add 0,11,11 | |
8113 | * lwz 12,(got+8)@l(12) # got[2] contains the map address | |
8114 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
8115 | * bctr | |
8116 | */ | |
d7128ce4 AM |
8117 | static const unsigned int plt_resolve[] = |
8118 | { | |
a6aa5195 AM |
8119 | LIS_12, |
8120 | ADDIS_11_11, | |
8121 | LWZ_0_12, | |
8122 | ADDI_11_11, | |
d7128ce4 | 8123 | MTCTR_0, |
7e8aeb9a | 8124 | ADD_0_11_11, |
a6aa5195 | 8125 | LWZ_12_12, |
7e8aeb9a | 8126 | ADD_11_0_11, |
d7128ce4 AM |
8127 | BCTR, |
8128 | NOP, | |
8129 | NOP, | |
a6aa5195 AM |
8130 | NOP, |
8131 | NOP, | |
8132 | NOP, | |
8133 | NOP, | |
d7128ce4 AM |
8134 | NOP |
8135 | }; | |
8136 | ||
a6aa5195 AM |
8137 | if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) |
8138 | abort (); | |
8139 | if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) | |
7e8aeb9a AM |
8140 | abort (); |
8141 | ||
a6aa5195 | 8142 | /* Build the branch table, one for each plt entry (less one), |
86b9da88 | 8143 | and perhaps some padding. */ |
a6aa5195 AM |
8144 | p = htab->glink->contents; |
8145 | p += htab->glink_pltresolve; | |
86b9da88 AM |
8146 | endp = htab->glink->contents; |
8147 | endp += htab->glink->size - GLINK_PLTRESOLVE; | |
8148 | while (p < endp - 8 * 4) | |
8149 | { | |
8150 | bfd_put_32 (output_bfd, B + endp - p, p); | |
8151 | p += 4; | |
8152 | } | |
8153 | while (p < endp) | |
8154 | { | |
8155 | bfd_put_32 (output_bfd, NOP, p); | |
8156 | p += 4; | |
8157 | } | |
8158 | ||
7e8aeb9a | 8159 | res0 = (htab->glink_pltresolve |
86b9da88 AM |
8160 | + htab->glink->output_section->vma |
8161 | + htab->glink->output_offset); | |
8162 | ||
8163 | /* Last comes the PLTresolve stub. */ | |
7e8aeb9a AM |
8164 | if (info->shared || info->pie) |
8165 | { | |
a6aa5195 | 8166 | bfd_vma bcl; |
d7128ce4 | 8167 | |
a6aa5195 | 8168 | for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) |
7e8aeb9a | 8169 | { |
a6aa5195 | 8170 | bfd_put_32 (output_bfd, pic_plt_resolve[i], p); |
7e8aeb9a AM |
8171 | p += 4; |
8172 | } | |
a6aa5195 AM |
8173 | p -= 4 * ARRAY_SIZE (pic_plt_resolve); |
8174 | ||
8175 | bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 | |
8176 | + htab->glink->output_section->vma | |
8177 | + htab->glink->output_offset); | |
8178 | ||
8179 | bfd_put_32 (output_bfd, | |
8180 | ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); | |
8181 | bfd_put_32 (output_bfd, | |
8182 | ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); | |
8183 | bfd_put_32 (output_bfd, | |
8184 | ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); | |
8185 | if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) | |
8186 | { | |
8187 | bfd_put_32 (output_bfd, | |
8188 | LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
8189 | bfd_put_32 (output_bfd, | |
8190 | LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); | |
8191 | } | |
8192 | else | |
8193 | { | |
8194 | bfd_put_32 (output_bfd, | |
8195 | LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
8196 | bfd_put_32 (output_bfd, | |
8197 | LWZ_12_12 + 4, p + 9*4); | |
8198 | } | |
7e8aeb9a AM |
8199 | } |
8200 | else | |
d7128ce4 | 8201 | { |
a6aa5195 | 8202 | for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) |
7e8aeb9a AM |
8203 | { |
8204 | bfd_put_32 (output_bfd, plt_resolve[i], p); | |
8205 | p += 4; | |
8206 | } | |
a6aa5195 AM |
8207 | p -= 4 * ARRAY_SIZE (plt_resolve); |
8208 | ||
8209 | bfd_put_32 (output_bfd, | |
8210 | LIS_12 + PPC_HA (got + 4), p + 0*4); | |
8211 | bfd_put_32 (output_bfd, | |
8212 | ADDIS_11_11 + PPC_HA (-res0), p + 1*4); | |
8213 | bfd_put_32 (output_bfd, | |
8214 | ADDI_11_11 + PPC_LO (-res0), p + 3*4); | |
8215 | if (PPC_HA (got + 4) == PPC_HA (got + 8)) | |
8216 | { | |
8217 | bfd_put_32 (output_bfd, | |
8218 | LWZ_0_12 + PPC_LO (got + 4), p + 2*4); | |
8219 | bfd_put_32 (output_bfd, | |
8220 | LWZ_12_12 + PPC_LO (got + 8), p + 6*4); | |
8221 | } | |
8222 | else | |
8223 | { | |
8224 | bfd_put_32 (output_bfd, | |
8225 | LWZU_0_12 + PPC_LO (got + 4), p + 2*4); | |
8226 | bfd_put_32 (output_bfd, | |
8227 | LWZ_12_12 + 4, p + 6*4); | |
8228 | } | |
d7128ce4 | 8229 | } |
d7128ce4 AM |
8230 | } |
8231 | ||
e87d4038 | 8232 | return ret; |
25dbc73a | 8233 | } |
e1a9cb8e | 8234 | \f |
252b5132 RH |
8235 | #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec |
8236 | #define TARGET_LITTLE_NAME "elf32-powerpcle" | |
8237 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vec | |
8238 | #define TARGET_BIG_NAME "elf32-powerpc" | |
8239 | #define ELF_ARCH bfd_arch_powerpc | |
8240 | #define ELF_MACHINE_CODE EM_PPC | |
d0facd1b NC |
8241 | #ifdef __QNXTARGET__ |
8242 | #define ELF_MAXPAGESIZE 0x1000 | |
8243 | #else | |
252b5132 | 8244 | #define ELF_MAXPAGESIZE 0x10000 |
d0facd1b | 8245 | #endif |
b1342370 | 8246 | #define ELF_MINPAGESIZE 0x1000 |
24718e3b | 8247 | #define ELF_COMMONPAGESIZE 0x1000 |
252b5132 RH |
8248 | #define elf_info_to_howto ppc_elf_info_to_howto |
8249 | ||
8250 | #ifdef EM_CYGNUS_POWERPC | |
8251 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
8252 | #endif | |
8253 | ||
8254 | #ifdef EM_PPC_OLD | |
8255 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
8256 | #endif | |
8257 | ||
8258 | #define elf_backend_plt_not_loaded 1 | |
252b5132 | 8259 | #define elf_backend_can_gc_sections 1 |
51b64d56 | 8260 | #define elf_backend_can_refcount 1 |
b491616a | 8261 | #define elf_backend_rela_normal 1 |
252b5132 | 8262 | |
43c40ab2 | 8263 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 8264 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 8265 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 | 8266 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
157090f7 | 8267 | #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup |
252b5132 | 8268 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
70bccea4 | 8269 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
468392fb | 8270 | #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab |
252b5132 | 8271 | |
feee612b | 8272 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
8273 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
8274 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
8275 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
8276 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
8277 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
8278 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 8279 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
8280 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
8281 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
8282 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
0eb4a168 | 8283 | #define elf_backend_hash_symbol ppc_elf_hash_symbol |
252b5132 RH |
8284 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
8285 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
8286 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
8287 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
c5fccbec DJ |
8288 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
8289 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
183e98be | 8290 | #define elf_backend_write_core_note ppc_elf_write_core_note |
29c2fb7c | 8291 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
8292 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
8293 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
8294 | #define elf_backend_write_section ppc_elf_write_section | |
551b43fd | 8295 | #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr |
4c45e5c9 | 8296 | #define elf_backend_plt_sym_val ppc_elf_plt_sym_val |
8a696751 | 8297 | #define elf_backend_action_discarded ppc_elf_action_discarded |
74541ad4 | 8298 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
252b5132 RH |
8299 | |
8300 | #include "elf32-target.h" | |
9d8504b1 PB |
8301 | |
8302 | /* VxWorks Target */ | |
8303 | ||
8304 | #undef TARGET_LITTLE_SYM | |
8305 | #undef TARGET_LITTLE_NAME | |
8306 | ||
8307 | #undef TARGET_BIG_SYM | |
8308 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec | |
8309 | #undef TARGET_BIG_NAME | |
8310 | #define TARGET_BIG_NAME "elf32-powerpc-vxworks" | |
8311 | ||
d5e3d971 PB |
8312 | /* VxWorks uses the elf default section flags for .plt. */ |
8313 | static const struct bfd_elf_special_section * | |
8314 | ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
9d8504b1 | 8315 | { |
d5e3d971 PB |
8316 | if (sec->name == NULL) |
8317 | return NULL; | |
8318 | ||
8319 | if (strcmp (sec->name, ".plt") == 0) | |
8320 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
8321 | ||
8322 | return ppc_elf_get_sec_type_attr (abfd, sec); | |
8323 | } | |
9d8504b1 PB |
8324 | |
8325 | /* Like ppc_elf_link_hash_table_create, but overrides | |
8326 | appropriately for VxWorks. */ | |
8327 | static struct bfd_link_hash_table * | |
8328 | ppc_elf_vxworks_link_hash_table_create (bfd *abfd) | |
8329 | { | |
8330 | struct bfd_link_hash_table *ret; | |
8331 | ||
8332 | ret = ppc_elf_link_hash_table_create (abfd); | |
8333 | if (ret) | |
8334 | { | |
8335 | struct ppc_elf_link_hash_table *htab | |
8336 | = (struct ppc_elf_link_hash_table *)ret; | |
8337 | htab->is_vxworks = 1; | |
4a3dc543 | 8338 | htab->plt_type = PLT_VXWORKS; |
9d8504b1 PB |
8339 | htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; |
8340 | htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; | |
8341 | htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; | |
8342 | } | |
8343 | return ret; | |
8344 | } | |
8345 | ||
8346 | /* Tweak magic VxWorks symbols as they are loaded. */ | |
8347 | static bfd_boolean | |
8348 | ppc_elf_vxworks_add_symbol_hook (bfd *abfd, | |
8349 | struct bfd_link_info *info, | |
8350 | Elf_Internal_Sym *sym, | |
8351 | const char **namep ATTRIBUTE_UNUSED, | |
8352 | flagword *flagsp ATTRIBUTE_UNUSED, | |
8353 | asection **secp, | |
8354 | bfd_vma *valp) | |
8355 | { | |
8356 | if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, | |
8357 | valp)) | |
8358 | return FALSE; | |
8359 | ||
8360 | return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); | |
8361 | } | |
8362 | ||
9d8504b1 PB |
8363 | static void |
8364 | ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
8365 | { | |
8366 | ppc_elf_final_write_processing(abfd, linker); | |
8367 | elf_vxworks_final_write_processing(abfd, linker); | |
8368 | } | |
8369 | ||
8370 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
8371 | define it. */ | |
8372 | #undef elf_backend_want_plt_sym | |
8373 | #define elf_backend_want_plt_sym 1 | |
8374 | #undef elf_backend_want_got_plt | |
8375 | #define elf_backend_want_got_plt 1 | |
8376 | #undef elf_backend_got_symbol_offset | |
8377 | #define elf_backend_got_symbol_offset 0 | |
8378 | #undef elf_backend_plt_not_loaded | |
8379 | #define elf_backend_plt_not_loaded 0 | |
8380 | #undef elf_backend_plt_readonly | |
8381 | #define elf_backend_plt_readonly 1 | |
8382 | #undef elf_backend_got_header_size | |
8383 | #define elf_backend_got_header_size 12 | |
8384 | ||
468392fb AM |
8385 | #undef bfd_elf32_get_synthetic_symtab |
8386 | ||
9d8504b1 PB |
8387 | #undef bfd_elf32_bfd_link_hash_table_create |
8388 | #define bfd_elf32_bfd_link_hash_table_create \ | |
8389 | ppc_elf_vxworks_link_hash_table_create | |
9d8504b1 PB |
8390 | #undef elf_backend_add_symbol_hook |
8391 | #define elf_backend_add_symbol_hook \ | |
8392 | ppc_elf_vxworks_add_symbol_hook | |
8393 | #undef elf_backend_link_output_symbol_hook | |
8394 | #define elf_backend_link_output_symbol_hook \ | |
9c72ff84 | 8395 | elf_vxworks_link_output_symbol_hook |
9d8504b1 PB |
8396 | #undef elf_backend_final_write_processing |
8397 | #define elf_backend_final_write_processing \ | |
8398 | ppc_elf_vxworks_final_write_processing | |
d5e3d971 PB |
8399 | #undef elf_backend_get_sec_type_attr |
8400 | #define elf_backend_get_sec_type_attr \ | |
8401 | ppc_elf_vxworks_get_sec_type_attr | |
9d8504b1 PB |
8402 | #undef elf_backend_emit_relocs |
8403 | #define elf_backend_emit_relocs \ | |
8404 | elf_vxworks_emit_relocs | |
8405 | ||
8406 | #undef elf32_bed | |
8407 | #define elf32_bed ppc_elf_vxworks_bed | |
8408 | ||
8409 | #include "elf32-target.h" |