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, |
75cd47ed | 3 | 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
25f53a85 | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | Written by Ian Lance Taylor, Cygnus Support. |
6 | ||
ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 12 | (at your option) any later version. |
252b5132 | 13 | |
ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
ae9a127f | 19 | You should have received a copy of the GNU General Public License |
fc0bffd6 | 20 | along with this program; if not, write to the |
3e110533 | 21 | Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, |
53e09e0a | 22 | Boston, MA 02110-1301, USA. */ |
252b5132 | 23 | |
cd123cb7 | 24 | |
252b5132 RH |
25 | /* This file is based on a preliminary PowerPC ELF ABI. The |
26 | information may not match the final PowerPC ELF ABI. It includes | |
27 | suggestions from the in-progress Embedded PowerPC ABI, and that | |
28 | information may also not match. */ | |
29 | ||
3db64b00 | 30 | #include "sysdep.h" |
183e98be | 31 | #include <stdarg.h> |
252b5132 | 32 | #include "bfd.h" |
252b5132 RH |
33 | #include "bfdlink.h" |
34 | #include "libbfd.h" | |
35 | #include "elf-bfd.h" | |
36 | #include "elf/ppc.h" | |
7619e7c7 | 37 | #include "elf32-ppc.h" |
9d8504b1 | 38 | #include "elf-vxworks.h" |
6177242a | 39 | #include "dwarf2.h" |
70a38d42 | 40 | #include "elf-linux-psinfo.h" |
252b5132 | 41 | |
b9c361e0 JL |
42 | typedef enum split16_format_type |
43 | { | |
44 | split16a_type = 0, | |
45 | split16d_type | |
46 | } | |
47 | split16_format_type; | |
48 | ||
f0fe0e16 | 49 | /* RELA relocations are used here. */ |
252b5132 | 50 | |
252b5132 | 51 | static bfd_reloc_status_type ppc_elf_addr16_ha_reloc |
55fd94b0 | 52 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
7619e7c7 | 53 | static bfd_reloc_status_type ppc_elf_unhandled_reloc |
55fd94b0 | 54 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
b9c361e0 JL |
55 | static void ppc_elf_vle_split16 |
56 | (bfd *, bfd_byte *, bfd_vma, bfd_vma, split16_format_type); | |
252b5132 | 57 | |
70bccea4 AM |
58 | /* Branch prediction bit for branch taken relocs. */ |
59 | #define BRANCH_PREDICT_BIT 0x200000 | |
60 | /* Mask to set RA in memory instructions. */ | |
61 | #define RA_REGISTER_MASK 0x001f0000 | |
62 | /* Value to shift register by to insert RA. */ | |
63 | #define RA_REGISTER_SHIFT 16 | |
252b5132 RH |
64 | |
65 | /* The name of the dynamic interpreter. This is put in the .interp | |
66 | section. */ | |
252b5132 RH |
67 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
68 | ||
d7128ce4 | 69 | /* For old-style PLT. */ |
252b5132 RH |
70 | /* The number of single-slot PLT entries (the rest use two slots). */ |
71 | #define PLT_NUM_SINGLE_ENTRIES 8192 | |
72 | ||
d7128ce4 | 73 | /* For new-style .glink and .plt. */ |
a6aa5195 | 74 | #define GLINK_PLTRESOLVE 16*4 |
d7128ce4 | 75 | #define GLINK_ENTRY_SIZE 4*4 |
a7f2871e | 76 | #define TLS_GET_ADDR_GLINK_SIZE 12*4 |
d7128ce4 | 77 | |
9d8504b1 PB |
78 | /* VxWorks uses its own plt layout, filled in by the static linker. */ |
79 | ||
80 | /* The standard VxWorks PLT entry. */ | |
81 | #define VXWORKS_PLT_ENTRY_SIZE 32 | |
82 | static const bfd_vma ppc_elf_vxworks_plt_entry | |
83 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
84 | { | |
85 | 0x3d800000, /* lis r12,0 */ | |
86 | 0x818c0000, /* lwz r12,0(r12) */ | |
87 | 0x7d8903a6, /* mtctr r12 */ | |
88 | 0x4e800420, /* bctr */ | |
89 | 0x39600000, /* li r11,0 */ | |
90 | 0x48000000, /* b 14 <.PLT0resolve+0x4> */ | |
91 | 0x60000000, /* nop */ | |
92 | 0x60000000, /* nop */ | |
93 | }; | |
94 | static const bfd_vma ppc_elf_vxworks_pic_plt_entry | |
95 | [VXWORKS_PLT_ENTRY_SIZE / 4] = | |
96 | { | |
97 | 0x3d9e0000, /* addis r12,r30,0 */ | |
98 | 0x818c0000, /* lwz r12,0(r12) */ | |
99 | 0x7d8903a6, /* mtctr r12 */ | |
100 | 0x4e800420, /* bctr */ | |
101 | 0x39600000, /* li r11,0 */ | |
102 | 0x48000000, /* b 14 <.PLT0resolve+0x4> 14: R_PPC_REL24 .PLTresolve */ | |
103 | 0x60000000, /* nop */ | |
104 | 0x60000000, /* nop */ | |
105 | }; | |
106 | ||
107 | /* The initial VxWorks PLT entry. */ | |
108 | #define VXWORKS_PLT_INITIAL_ENTRY_SIZE 32 | |
109 | static const bfd_vma ppc_elf_vxworks_plt0_entry | |
110 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
111 | { | |
112 | 0x3d800000, /* lis r12,0 */ | |
113 | 0x398c0000, /* addi r12,r12,0 */ | |
114 | 0x800c0008, /* lwz r0,8(r12) */ | |
115 | 0x7c0903a6, /* mtctr r0 */ | |
116 | 0x818c0004, /* lwz r12,4(r12) */ | |
117 | 0x4e800420, /* bctr */ | |
118 | 0x60000000, /* nop */ | |
119 | 0x60000000, /* nop */ | |
120 | }; | |
121 | static const bfd_vma ppc_elf_vxworks_pic_plt0_entry | |
122 | [VXWORKS_PLT_INITIAL_ENTRY_SIZE / 4] = | |
123 | { | |
124 | 0x819e0008, /* lwz r12,8(r30) */ | |
125 | 0x7d8903a6, /* mtctr r12 */ | |
126 | 0x819e0004, /* lwz r12,4(r30) */ | |
127 | 0x4e800420, /* bctr */ | |
128 | 0x60000000, /* nop */ | |
129 | 0x60000000, /* nop */ | |
130 | 0x60000000, /* nop */ | |
131 | 0x60000000, /* nop */ | |
132 | }; | |
133 | ||
134 | /* For executables, we have some additional relocations in | |
135 | .rela.plt.unloaded, for the kernel loader. */ | |
136 | ||
137 | /* The number of non-JMP_SLOT relocations per PLT0 slot. */ | |
138 | #define VXWORKS_PLT_NON_JMP_SLOT_RELOCS 3 | |
139 | /* The number of relocations in the PLTResolve slot. */ | |
140 | #define VXWORKS_PLTRESOLVE_RELOCS 2 | |
141 | /* The number of relocations in the PLTResolve slot when when creating | |
142 | a shared library. */ | |
143 | #define VXWORKS_PLTRESOLVE_RELOCS_SHLIB 0 | |
144 | ||
d7128ce4 | 145 | /* Some instructions. */ |
d7128ce4 | 146 | #define ADDIS_11_11 0x3d6b0000 |
a6aa5195 AM |
147 | #define ADDIS_11_30 0x3d7e0000 |
148 | #define ADDIS_12_12 0x3d8c0000 | |
d7128ce4 | 149 | #define ADDI_11_11 0x396b0000 |
d7128ce4 | 150 | #define ADD_0_11_11 0x7c0b5a14 |
a7f2871e | 151 | #define ADD_3_12_2 0x7c6c1214 |
d7128ce4 | 152 | #define ADD_11_0_11 0x7d605a14 |
a6aa5195 AM |
153 | #define B 0x48000000 |
154 | #define BCL_20_31 0x429f0005 | |
d7128ce4 | 155 | #define BCTR 0x4e800420 |
a7f2871e AM |
156 | #define BEQLR 0x4d820020 |
157 | #define CMPWI_11_0 0x2c0b0000 | |
7e8aeb9a AM |
158 | #define LIS_11 0x3d600000 |
159 | #define LIS_12 0x3d800000 | |
a6aa5195 AM |
160 | #define LWZU_0_12 0x840c0000 |
161 | #define LWZ_0_12 0x800c0000 | |
a7f2871e | 162 | #define LWZ_11_3 0x81630000 |
a6aa5195 AM |
163 | #define LWZ_11_11 0x816b0000 |
164 | #define LWZ_11_30 0x817e0000 | |
a7f2871e | 165 | #define LWZ_12_3 0x81830000 |
a6aa5195 | 166 | #define LWZ_12_12 0x818c0000 |
a7f2871e AM |
167 | #define MR_0_3 0x7c601b78 |
168 | #define MR_3_0 0x7c030378 | |
a6aa5195 AM |
169 | #define MFLR_0 0x7c0802a6 |
170 | #define MFLR_12 0x7d8802a6 | |
171 | #define MTCTR_0 0x7c0903a6 | |
172 | #define MTCTR_11 0x7d6903a6 | |
173 | #define MTLR_0 0x7c0803a6 | |
174 | #define NOP 0x60000000 | |
175 | #define SUB_11_11_12 0x7d6c5850 | |
7619e7c7 AM |
176 | |
177 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
178 | #define TP_OFFSET 0x7000 | |
179 | #define DTP_OFFSET 0x8000 | |
e87d4038 AM |
180 | |
181 | /* The value of a defined global symbol. */ | |
182 | #define SYM_VAL(SYM) \ | |
183 | ((SYM)->root.u.def.section->output_section->vma \ | |
184 | + (SYM)->root.u.def.section->output_offset \ | |
185 | + (SYM)->root.u.def.value) | |
7fce784e | 186 | \f |
e47cd125 | 187 | static reloc_howto_type *ppc_elf_howto_table[R_PPC_max]; |
252b5132 | 188 | |
8da6118f | 189 | static reloc_howto_type ppc_elf_howto_raw[] = { |
252b5132 RH |
190 | /* This reloc does nothing. */ |
191 | HOWTO (R_PPC_NONE, /* type */ | |
192 | 0, /* rightshift */ | |
193 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
194 | 32, /* bitsize */ | |
b34976b6 | 195 | FALSE, /* pc_relative */ |
252b5132 RH |
196 | 0, /* bitpos */ |
197 | complain_overflow_bitfield, /* complain_on_overflow */ | |
198 | bfd_elf_generic_reloc, /* special_function */ | |
199 | "R_PPC_NONE", /* name */ | |
b34976b6 | 200 | FALSE, /* partial_inplace */ |
252b5132 RH |
201 | 0, /* src_mask */ |
202 | 0, /* dst_mask */ | |
b34976b6 | 203 | FALSE), /* pcrel_offset */ |
252b5132 RH |
204 | |
205 | /* A standard 32 bit relocation. */ | |
206 | HOWTO (R_PPC_ADDR32, /* type */ | |
207 | 0, /* rightshift */ | |
208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 32, /* bitsize */ | |
b34976b6 | 210 | FALSE, /* pc_relative */ |
252b5132 RH |
211 | 0, /* bitpos */ |
212 | complain_overflow_bitfield, /* complain_on_overflow */ | |
213 | bfd_elf_generic_reloc, /* special_function */ | |
214 | "R_PPC_ADDR32", /* name */ | |
b34976b6 | 215 | FALSE, /* partial_inplace */ |
252b5132 RH |
216 | 0, /* src_mask */ |
217 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 218 | FALSE), /* pcrel_offset */ |
252b5132 RH |
219 | |
220 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
221 | FIXME: we don't check that, we just clear them. */ | |
222 | HOWTO (R_PPC_ADDR24, /* type */ | |
223 | 0, /* rightshift */ | |
224 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
225 | 26, /* bitsize */ | |
b34976b6 | 226 | FALSE, /* pc_relative */ |
252b5132 RH |
227 | 0, /* bitpos */ |
228 | complain_overflow_bitfield, /* complain_on_overflow */ | |
229 | bfd_elf_generic_reloc, /* special_function */ | |
230 | "R_PPC_ADDR24", /* name */ | |
b34976b6 | 231 | FALSE, /* partial_inplace */ |
252b5132 RH |
232 | 0, /* src_mask */ |
233 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 234 | FALSE), /* pcrel_offset */ |
252b5132 RH |
235 | |
236 | /* A standard 16 bit relocation. */ | |
237 | HOWTO (R_PPC_ADDR16, /* type */ | |
238 | 0, /* rightshift */ | |
239 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
240 | 16, /* bitsize */ | |
b34976b6 | 241 | FALSE, /* pc_relative */ |
252b5132 RH |
242 | 0, /* bitpos */ |
243 | complain_overflow_bitfield, /* complain_on_overflow */ | |
244 | bfd_elf_generic_reloc, /* special_function */ | |
245 | "R_PPC_ADDR16", /* name */ | |
b34976b6 | 246 | FALSE, /* partial_inplace */ |
252b5132 RH |
247 | 0, /* src_mask */ |
248 | 0xffff, /* dst_mask */ | |
b34976b6 | 249 | FALSE), /* pcrel_offset */ |
252b5132 RH |
250 | |
251 | /* A 16 bit relocation without overflow. */ | |
252 | HOWTO (R_PPC_ADDR16_LO, /* type */ | |
253 | 0, /* rightshift */ | |
254 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
255 | 16, /* bitsize */ | |
b34976b6 | 256 | FALSE, /* pc_relative */ |
252b5132 RH |
257 | 0, /* bitpos */ |
258 | complain_overflow_dont,/* complain_on_overflow */ | |
259 | bfd_elf_generic_reloc, /* special_function */ | |
260 | "R_PPC_ADDR16_LO", /* name */ | |
b34976b6 | 261 | FALSE, /* partial_inplace */ |
252b5132 RH |
262 | 0, /* src_mask */ |
263 | 0xffff, /* dst_mask */ | |
b34976b6 | 264 | FALSE), /* pcrel_offset */ |
252b5132 RH |
265 | |
266 | /* The high order 16 bits of an address. */ | |
267 | HOWTO (R_PPC_ADDR16_HI, /* type */ | |
268 | 16, /* rightshift */ | |
269 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
270 | 16, /* bitsize */ | |
b34976b6 | 271 | FALSE, /* pc_relative */ |
252b5132 RH |
272 | 0, /* bitpos */ |
273 | complain_overflow_dont, /* complain_on_overflow */ | |
274 | bfd_elf_generic_reloc, /* special_function */ | |
275 | "R_PPC_ADDR16_HI", /* name */ | |
b34976b6 | 276 | FALSE, /* partial_inplace */ |
252b5132 RH |
277 | 0, /* src_mask */ |
278 | 0xffff, /* dst_mask */ | |
b34976b6 | 279 | FALSE), /* pcrel_offset */ |
252b5132 RH |
280 | |
281 | /* The high order 16 bits of an address, plus 1 if the contents of | |
8da6118f | 282 | the low 16 bits, treated as a signed number, is negative. */ |
252b5132 RH |
283 | HOWTO (R_PPC_ADDR16_HA, /* type */ |
284 | 16, /* rightshift */ | |
285 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
286 | 16, /* bitsize */ | |
b34976b6 | 287 | FALSE, /* pc_relative */ |
252b5132 RH |
288 | 0, /* bitpos */ |
289 | complain_overflow_dont, /* complain_on_overflow */ | |
290 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
291 | "R_PPC_ADDR16_HA", /* name */ | |
b34976b6 | 292 | FALSE, /* partial_inplace */ |
252b5132 RH |
293 | 0, /* src_mask */ |
294 | 0xffff, /* dst_mask */ | |
b34976b6 | 295 | FALSE), /* pcrel_offset */ |
252b5132 RH |
296 | |
297 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
298 | FIXME: we don't check that, we just clear them. */ | |
299 | HOWTO (R_PPC_ADDR14, /* type */ | |
300 | 0, /* rightshift */ | |
301 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
302 | 16, /* bitsize */ | |
b34976b6 | 303 | FALSE, /* pc_relative */ |
252b5132 RH |
304 | 0, /* bitpos */ |
305 | complain_overflow_bitfield, /* complain_on_overflow */ | |
306 | bfd_elf_generic_reloc, /* special_function */ | |
307 | "R_PPC_ADDR14", /* name */ | |
b34976b6 | 308 | FALSE, /* partial_inplace */ |
252b5132 RH |
309 | 0, /* src_mask */ |
310 | 0xfffc, /* dst_mask */ | |
b34976b6 | 311 | FALSE), /* pcrel_offset */ |
252b5132 RH |
312 | |
313 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
314 | indicate that the branch is expected to be taken. The lower two | |
8da6118f | 315 | bits must be zero. */ |
252b5132 RH |
316 | HOWTO (R_PPC_ADDR14_BRTAKEN, /* type */ |
317 | 0, /* rightshift */ | |
318 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
319 | 16, /* bitsize */ | |
b34976b6 | 320 | FALSE, /* pc_relative */ |
252b5132 RH |
321 | 0, /* bitpos */ |
322 | complain_overflow_bitfield, /* complain_on_overflow */ | |
323 | bfd_elf_generic_reloc, /* special_function */ | |
324 | "R_PPC_ADDR14_BRTAKEN",/* name */ | |
b34976b6 | 325 | FALSE, /* partial_inplace */ |
252b5132 RH |
326 | 0, /* src_mask */ |
327 | 0xfffc, /* dst_mask */ | |
b34976b6 | 328 | FALSE), /* pcrel_offset */ |
252b5132 RH |
329 | |
330 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
331 | indicate that the branch is not expected to be taken. The lower | |
332 | two bits must be zero. */ | |
333 | HOWTO (R_PPC_ADDR14_BRNTAKEN, /* type */ | |
334 | 0, /* rightshift */ | |
335 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
336 | 16, /* bitsize */ | |
b34976b6 | 337 | FALSE, /* pc_relative */ |
252b5132 RH |
338 | 0, /* bitpos */ |
339 | complain_overflow_bitfield, /* complain_on_overflow */ | |
340 | bfd_elf_generic_reloc, /* special_function */ | |
341 | "R_PPC_ADDR14_BRNTAKEN",/* name */ | |
b34976b6 | 342 | FALSE, /* partial_inplace */ |
252b5132 RH |
343 | 0, /* src_mask */ |
344 | 0xfffc, /* dst_mask */ | |
b34976b6 | 345 | FALSE), /* pcrel_offset */ |
252b5132 | 346 | |
8da6118f | 347 | /* A relative 26 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
348 | HOWTO (R_PPC_REL24, /* type */ |
349 | 0, /* rightshift */ | |
350 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
351 | 26, /* bitsize */ | |
b34976b6 | 352 | TRUE, /* pc_relative */ |
252b5132 RH |
353 | 0, /* bitpos */ |
354 | complain_overflow_signed, /* complain_on_overflow */ | |
355 | bfd_elf_generic_reloc, /* special_function */ | |
356 | "R_PPC_REL24", /* name */ | |
b34976b6 | 357 | FALSE, /* partial_inplace */ |
252b5132 RH |
358 | 0, /* src_mask */ |
359 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 360 | TRUE), /* pcrel_offset */ |
252b5132 | 361 | |
8da6118f | 362 | /* A relative 16 bit branch; the lower two bits must be zero. */ |
252b5132 RH |
363 | HOWTO (R_PPC_REL14, /* type */ |
364 | 0, /* rightshift */ | |
365 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
366 | 16, /* bitsize */ | |
b34976b6 | 367 | TRUE, /* pc_relative */ |
252b5132 RH |
368 | 0, /* bitpos */ |
369 | complain_overflow_signed, /* complain_on_overflow */ | |
370 | bfd_elf_generic_reloc, /* special_function */ | |
371 | "R_PPC_REL14", /* name */ | |
b34976b6 | 372 | FALSE, /* partial_inplace */ |
252b5132 RH |
373 | 0, /* src_mask */ |
374 | 0xfffc, /* dst_mask */ | |
b34976b6 | 375 | TRUE), /* pcrel_offset */ |
252b5132 | 376 | |
8da6118f | 377 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
378 | the branch is expected to be taken. The lower two bits must be |
379 | zero. */ | |
380 | HOWTO (R_PPC_REL14_BRTAKEN, /* type */ | |
381 | 0, /* rightshift */ | |
382 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
383 | 16, /* bitsize */ | |
b34976b6 | 384 | TRUE, /* pc_relative */ |
252b5132 RH |
385 | 0, /* bitpos */ |
386 | complain_overflow_signed, /* complain_on_overflow */ | |
387 | bfd_elf_generic_reloc, /* special_function */ | |
388 | "R_PPC_REL14_BRTAKEN", /* name */ | |
b34976b6 | 389 | FALSE, /* partial_inplace */ |
252b5132 RH |
390 | 0, /* src_mask */ |
391 | 0xfffc, /* dst_mask */ | |
b34976b6 | 392 | TRUE), /* pcrel_offset */ |
252b5132 | 393 | |
8da6118f | 394 | /* A relative 16 bit branch. Bit 10 should be set to indicate that |
252b5132 RH |
395 | the branch is not expected to be taken. The lower two bits must |
396 | be zero. */ | |
397 | HOWTO (R_PPC_REL14_BRNTAKEN, /* type */ | |
398 | 0, /* rightshift */ | |
399 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
400 | 16, /* bitsize */ | |
b34976b6 | 401 | TRUE, /* pc_relative */ |
252b5132 RH |
402 | 0, /* bitpos */ |
403 | complain_overflow_signed, /* complain_on_overflow */ | |
404 | bfd_elf_generic_reloc, /* special_function */ | |
405 | "R_PPC_REL14_BRNTAKEN",/* name */ | |
b34976b6 | 406 | FALSE, /* partial_inplace */ |
252b5132 RH |
407 | 0, /* src_mask */ |
408 | 0xfffc, /* dst_mask */ | |
b34976b6 | 409 | TRUE), /* pcrel_offset */ |
252b5132 RH |
410 | |
411 | /* Like R_PPC_ADDR16, but referring to the GOT table entry for the | |
412 | symbol. */ | |
413 | HOWTO (R_PPC_GOT16, /* type */ | |
414 | 0, /* rightshift */ | |
415 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
416 | 16, /* bitsize */ | |
b34976b6 | 417 | FALSE, /* pc_relative */ |
252b5132 RH |
418 | 0, /* bitpos */ |
419 | complain_overflow_signed, /* complain_on_overflow */ | |
420 | bfd_elf_generic_reloc, /* special_function */ | |
421 | "R_PPC_GOT16", /* name */ | |
b34976b6 | 422 | FALSE, /* partial_inplace */ |
252b5132 RH |
423 | 0, /* src_mask */ |
424 | 0xffff, /* dst_mask */ | |
b34976b6 | 425 | FALSE), /* pcrel_offset */ |
252b5132 RH |
426 | |
427 | /* Like R_PPC_ADDR16_LO, but referring to the GOT table entry for | |
428 | the symbol. */ | |
429 | HOWTO (R_PPC_GOT16_LO, /* type */ | |
430 | 0, /* rightshift */ | |
431 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
432 | 16, /* bitsize */ | |
b34976b6 | 433 | FALSE, /* pc_relative */ |
252b5132 RH |
434 | 0, /* bitpos */ |
435 | complain_overflow_dont, /* complain_on_overflow */ | |
436 | bfd_elf_generic_reloc, /* special_function */ | |
437 | "R_PPC_GOT16_LO", /* name */ | |
b34976b6 | 438 | FALSE, /* partial_inplace */ |
252b5132 RH |
439 | 0, /* src_mask */ |
440 | 0xffff, /* dst_mask */ | |
b34976b6 | 441 | FALSE), /* pcrel_offset */ |
252b5132 RH |
442 | |
443 | /* Like R_PPC_ADDR16_HI, but referring to the GOT table entry for | |
444 | the symbol. */ | |
445 | HOWTO (R_PPC_GOT16_HI, /* type */ | |
446 | 16, /* rightshift */ | |
447 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
448 | 16, /* bitsize */ | |
b34976b6 | 449 | FALSE, /* pc_relative */ |
252b5132 RH |
450 | 0, /* bitpos */ |
451 | complain_overflow_bitfield, /* complain_on_overflow */ | |
452 | bfd_elf_generic_reloc, /* special_function */ | |
453 | "R_PPC_GOT16_HI", /* name */ | |
b34976b6 | 454 | FALSE, /* partial_inplace */ |
252b5132 RH |
455 | 0, /* src_mask */ |
456 | 0xffff, /* dst_mask */ | |
b34976b6 | 457 | FALSE), /* pcrel_offset */ |
252b5132 RH |
458 | |
459 | /* Like R_PPC_ADDR16_HA, but referring to the GOT table entry for | |
460 | the symbol. */ | |
461 | HOWTO (R_PPC_GOT16_HA, /* type */ | |
462 | 16, /* rightshift */ | |
463 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
464 | 16, /* bitsize */ | |
b34976b6 | 465 | FALSE, /* pc_relative */ |
252b5132 RH |
466 | 0, /* bitpos */ |
467 | complain_overflow_bitfield, /* complain_on_overflow */ | |
468 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
469 | "R_PPC_GOT16_HA", /* name */ | |
b34976b6 | 470 | FALSE, /* partial_inplace */ |
252b5132 RH |
471 | 0, /* src_mask */ |
472 | 0xffff, /* dst_mask */ | |
b34976b6 | 473 | FALSE), /* pcrel_offset */ |
252b5132 RH |
474 | |
475 | /* Like R_PPC_REL24, but referring to the procedure linkage table | |
476 | entry for the symbol. */ | |
477 | HOWTO (R_PPC_PLTREL24, /* type */ | |
478 | 0, /* rightshift */ | |
479 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
480 | 26, /* bitsize */ | |
b34976b6 | 481 | TRUE, /* pc_relative */ |
252b5132 RH |
482 | 0, /* bitpos */ |
483 | complain_overflow_signed, /* complain_on_overflow */ | |
484 | bfd_elf_generic_reloc, /* special_function */ | |
485 | "R_PPC_PLTREL24", /* name */ | |
b34976b6 | 486 | FALSE, /* partial_inplace */ |
252b5132 RH |
487 | 0, /* src_mask */ |
488 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 489 | TRUE), /* pcrel_offset */ |
252b5132 RH |
490 | |
491 | /* This is used only by the dynamic linker. The symbol should exist | |
492 | both in the object being run and in some shared library. The | |
493 | dynamic linker copies the data addressed by the symbol from the | |
494 | shared library into the object, because the object being | |
495 | run has to have the data at some particular address. */ | |
496 | HOWTO (R_PPC_COPY, /* type */ | |
497 | 0, /* rightshift */ | |
498 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
499 | 32, /* bitsize */ | |
b34976b6 | 500 | FALSE, /* pc_relative */ |
252b5132 RH |
501 | 0, /* bitpos */ |
502 | complain_overflow_bitfield, /* complain_on_overflow */ | |
503 | bfd_elf_generic_reloc, /* special_function */ | |
504 | "R_PPC_COPY", /* name */ | |
b34976b6 | 505 | FALSE, /* partial_inplace */ |
252b5132 RH |
506 | 0, /* src_mask */ |
507 | 0, /* dst_mask */ | |
b34976b6 | 508 | FALSE), /* pcrel_offset */ |
252b5132 RH |
509 | |
510 | /* Like R_PPC_ADDR32, but used when setting global offset table | |
511 | entries. */ | |
512 | HOWTO (R_PPC_GLOB_DAT, /* type */ | |
513 | 0, /* rightshift */ | |
514 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
515 | 32, /* bitsize */ | |
b34976b6 | 516 | FALSE, /* pc_relative */ |
252b5132 RH |
517 | 0, /* bitpos */ |
518 | complain_overflow_bitfield, /* complain_on_overflow */ | |
519 | bfd_elf_generic_reloc, /* special_function */ | |
520 | "R_PPC_GLOB_DAT", /* name */ | |
b34976b6 | 521 | FALSE, /* partial_inplace */ |
252b5132 RH |
522 | 0, /* src_mask */ |
523 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 524 | FALSE), /* pcrel_offset */ |
252b5132 RH |
525 | |
526 | /* Marks a procedure linkage table entry for a symbol. */ | |
527 | HOWTO (R_PPC_JMP_SLOT, /* type */ | |
528 | 0, /* rightshift */ | |
529 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
530 | 32, /* bitsize */ | |
b34976b6 | 531 | FALSE, /* pc_relative */ |
252b5132 RH |
532 | 0, /* bitpos */ |
533 | complain_overflow_bitfield, /* complain_on_overflow */ | |
534 | bfd_elf_generic_reloc, /* special_function */ | |
535 | "R_PPC_JMP_SLOT", /* name */ | |
b34976b6 | 536 | FALSE, /* partial_inplace */ |
252b5132 RH |
537 | 0, /* src_mask */ |
538 | 0, /* dst_mask */ | |
b34976b6 | 539 | FALSE), /* pcrel_offset */ |
252b5132 RH |
540 | |
541 | /* Used only by the dynamic linker. When the object is run, this | |
542 | longword is set to the load address of the object, plus the | |
543 | addend. */ | |
544 | HOWTO (R_PPC_RELATIVE, /* type */ | |
545 | 0, /* rightshift */ | |
546 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
547 | 32, /* bitsize */ | |
b34976b6 | 548 | FALSE, /* pc_relative */ |
252b5132 RH |
549 | 0, /* bitpos */ |
550 | complain_overflow_bitfield, /* complain_on_overflow */ | |
551 | bfd_elf_generic_reloc, /* special_function */ | |
552 | "R_PPC_RELATIVE", /* name */ | |
b34976b6 | 553 | FALSE, /* partial_inplace */ |
252b5132 RH |
554 | 0, /* src_mask */ |
555 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 556 | FALSE), /* pcrel_offset */ |
252b5132 RH |
557 | |
558 | /* Like R_PPC_REL24, but uses the value of the symbol within the | |
559 | object rather than the final value. Normally used for | |
560 | _GLOBAL_OFFSET_TABLE_. */ | |
561 | HOWTO (R_PPC_LOCAL24PC, /* type */ | |
562 | 0, /* rightshift */ | |
563 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
564 | 26, /* bitsize */ | |
b34976b6 | 565 | TRUE, /* pc_relative */ |
252b5132 RH |
566 | 0, /* bitpos */ |
567 | complain_overflow_signed, /* complain_on_overflow */ | |
568 | bfd_elf_generic_reloc, /* special_function */ | |
569 | "R_PPC_LOCAL24PC", /* name */ | |
b34976b6 | 570 | FALSE, /* partial_inplace */ |
252b5132 RH |
571 | 0, /* src_mask */ |
572 | 0x3fffffc, /* dst_mask */ | |
b34976b6 | 573 | TRUE), /* pcrel_offset */ |
252b5132 RH |
574 | |
575 | /* Like R_PPC_ADDR32, but may be unaligned. */ | |
576 | HOWTO (R_PPC_UADDR32, /* type */ | |
577 | 0, /* rightshift */ | |
578 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
579 | 32, /* bitsize */ | |
b34976b6 | 580 | FALSE, /* pc_relative */ |
252b5132 RH |
581 | 0, /* bitpos */ |
582 | complain_overflow_bitfield, /* complain_on_overflow */ | |
583 | bfd_elf_generic_reloc, /* special_function */ | |
584 | "R_PPC_UADDR32", /* name */ | |
b34976b6 | 585 | FALSE, /* partial_inplace */ |
252b5132 RH |
586 | 0, /* src_mask */ |
587 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 588 | FALSE), /* pcrel_offset */ |
252b5132 RH |
589 | |
590 | /* Like R_PPC_ADDR16, but may be unaligned. */ | |
591 | HOWTO (R_PPC_UADDR16, /* type */ | |
592 | 0, /* rightshift */ | |
593 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
594 | 16, /* bitsize */ | |
b34976b6 | 595 | FALSE, /* pc_relative */ |
252b5132 RH |
596 | 0, /* bitpos */ |
597 | complain_overflow_bitfield, /* complain_on_overflow */ | |
598 | bfd_elf_generic_reloc, /* special_function */ | |
599 | "R_PPC_UADDR16", /* name */ | |
b34976b6 | 600 | FALSE, /* partial_inplace */ |
252b5132 RH |
601 | 0, /* src_mask */ |
602 | 0xffff, /* dst_mask */ | |
b34976b6 | 603 | FALSE), /* pcrel_offset */ |
252b5132 RH |
604 | |
605 | /* 32-bit PC relative */ | |
606 | HOWTO (R_PPC_REL32, /* type */ | |
607 | 0, /* rightshift */ | |
608 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
609 | 32, /* bitsize */ | |
b34976b6 | 610 | TRUE, /* pc_relative */ |
252b5132 RH |
611 | 0, /* bitpos */ |
612 | complain_overflow_bitfield, /* complain_on_overflow */ | |
613 | bfd_elf_generic_reloc, /* special_function */ | |
614 | "R_PPC_REL32", /* name */ | |
b34976b6 | 615 | FALSE, /* partial_inplace */ |
252b5132 RH |
616 | 0, /* src_mask */ |
617 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 618 | TRUE), /* pcrel_offset */ |
252b5132 RH |
619 | |
620 | /* 32-bit relocation to the symbol's procedure linkage table. | |
c3668558 | 621 | FIXME: not supported. */ |
252b5132 RH |
622 | HOWTO (R_PPC_PLT32, /* type */ |
623 | 0, /* rightshift */ | |
624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
625 | 32, /* bitsize */ | |
b34976b6 | 626 | FALSE, /* pc_relative */ |
252b5132 RH |
627 | 0, /* bitpos */ |
628 | complain_overflow_bitfield, /* complain_on_overflow */ | |
629 | bfd_elf_generic_reloc, /* special_function */ | |
630 | "R_PPC_PLT32", /* name */ | |
b34976b6 | 631 | FALSE, /* partial_inplace */ |
252b5132 RH |
632 | 0, /* src_mask */ |
633 | 0, /* dst_mask */ | |
b34976b6 | 634 | FALSE), /* pcrel_offset */ |
252b5132 RH |
635 | |
636 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
c3668558 | 637 | FIXME: not supported. */ |
252b5132 RH |
638 | HOWTO (R_PPC_PLTREL32, /* type */ |
639 | 0, /* rightshift */ | |
640 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
641 | 32, /* bitsize */ | |
b34976b6 | 642 | TRUE, /* pc_relative */ |
252b5132 RH |
643 | 0, /* bitpos */ |
644 | complain_overflow_bitfield, /* complain_on_overflow */ | |
645 | bfd_elf_generic_reloc, /* special_function */ | |
646 | "R_PPC_PLTREL32", /* name */ | |
b34976b6 | 647 | FALSE, /* partial_inplace */ |
252b5132 RH |
648 | 0, /* src_mask */ |
649 | 0, /* dst_mask */ | |
b34976b6 | 650 | TRUE), /* pcrel_offset */ |
252b5132 RH |
651 | |
652 | /* Like R_PPC_ADDR16_LO, but referring to the PLT table entry for | |
653 | the symbol. */ | |
654 | HOWTO (R_PPC_PLT16_LO, /* type */ | |
655 | 0, /* rightshift */ | |
656 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
657 | 16, /* bitsize */ | |
b34976b6 | 658 | FALSE, /* pc_relative */ |
252b5132 RH |
659 | 0, /* bitpos */ |
660 | complain_overflow_dont, /* complain_on_overflow */ | |
661 | bfd_elf_generic_reloc, /* special_function */ | |
662 | "R_PPC_PLT16_LO", /* name */ | |
b34976b6 | 663 | FALSE, /* partial_inplace */ |
252b5132 RH |
664 | 0, /* src_mask */ |
665 | 0xffff, /* dst_mask */ | |
b34976b6 | 666 | FALSE), /* pcrel_offset */ |
252b5132 RH |
667 | |
668 | /* Like R_PPC_ADDR16_HI, but referring to the PLT table entry for | |
669 | the symbol. */ | |
670 | HOWTO (R_PPC_PLT16_HI, /* type */ | |
671 | 16, /* rightshift */ | |
672 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
673 | 16, /* bitsize */ | |
b34976b6 | 674 | FALSE, /* pc_relative */ |
252b5132 RH |
675 | 0, /* bitpos */ |
676 | complain_overflow_bitfield, /* complain_on_overflow */ | |
677 | bfd_elf_generic_reloc, /* special_function */ | |
678 | "R_PPC_PLT16_HI", /* name */ | |
b34976b6 | 679 | FALSE, /* partial_inplace */ |
252b5132 RH |
680 | 0, /* src_mask */ |
681 | 0xffff, /* dst_mask */ | |
b34976b6 | 682 | FALSE), /* pcrel_offset */ |
252b5132 RH |
683 | |
684 | /* Like R_PPC_ADDR16_HA, but referring to the PLT table entry for | |
685 | the symbol. */ | |
686 | HOWTO (R_PPC_PLT16_HA, /* type */ | |
687 | 16, /* rightshift */ | |
688 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
689 | 16, /* bitsize */ | |
b34976b6 | 690 | FALSE, /* pc_relative */ |
252b5132 RH |
691 | 0, /* bitpos */ |
692 | complain_overflow_bitfield, /* complain_on_overflow */ | |
693 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
694 | "R_PPC_PLT16_HA", /* name */ | |
b34976b6 | 695 | FALSE, /* partial_inplace */ |
252b5132 RH |
696 | 0, /* src_mask */ |
697 | 0xffff, /* dst_mask */ | |
b34976b6 | 698 | FALSE), /* pcrel_offset */ |
252b5132 RH |
699 | |
700 | /* A sign-extended 16 bit value relative to _SDA_BASE_, for use with | |
701 | small data items. */ | |
702 | HOWTO (R_PPC_SDAREL16, /* type */ | |
703 | 0, /* rightshift */ | |
704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
705 | 16, /* bitsize */ | |
b34976b6 | 706 | FALSE, /* pc_relative */ |
252b5132 RH |
707 | 0, /* bitpos */ |
708 | complain_overflow_signed, /* complain_on_overflow */ | |
709 | bfd_elf_generic_reloc, /* special_function */ | |
710 | "R_PPC_SDAREL16", /* name */ | |
b34976b6 | 711 | FALSE, /* partial_inplace */ |
252b5132 RH |
712 | 0, /* src_mask */ |
713 | 0xffff, /* dst_mask */ | |
b34976b6 | 714 | FALSE), /* pcrel_offset */ |
252b5132 | 715 | |
c061c2d8 | 716 | /* 16-bit section relative relocation. */ |
252b5132 RH |
717 | HOWTO (R_PPC_SECTOFF, /* type */ |
718 | 0, /* rightshift */ | |
c061c2d8 AM |
719 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
720 | 16, /* bitsize */ | |
b34976b6 | 721 | FALSE, /* pc_relative */ |
252b5132 RH |
722 | 0, /* bitpos */ |
723 | complain_overflow_bitfield, /* complain_on_overflow */ | |
724 | bfd_elf_generic_reloc, /* special_function */ | |
725 | "R_PPC_SECTOFF", /* name */ | |
b34976b6 | 726 | FALSE, /* partial_inplace */ |
252b5132 | 727 | 0, /* src_mask */ |
c061c2d8 | 728 | 0xffff, /* dst_mask */ |
b34976b6 | 729 | FALSE), /* pcrel_offset */ |
252b5132 | 730 | |
c3668558 | 731 | /* 16-bit lower half section relative relocation. */ |
252b5132 RH |
732 | HOWTO (R_PPC_SECTOFF_LO, /* type */ |
733 | 0, /* rightshift */ | |
734 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
735 | 16, /* bitsize */ | |
b34976b6 | 736 | FALSE, /* pc_relative */ |
252b5132 RH |
737 | 0, /* bitpos */ |
738 | complain_overflow_dont, /* complain_on_overflow */ | |
739 | bfd_elf_generic_reloc, /* special_function */ | |
740 | "R_PPC_SECTOFF_LO", /* name */ | |
b34976b6 | 741 | FALSE, /* partial_inplace */ |
252b5132 RH |
742 | 0, /* src_mask */ |
743 | 0xffff, /* dst_mask */ | |
b34976b6 | 744 | FALSE), /* pcrel_offset */ |
252b5132 | 745 | |
c3668558 | 746 | /* 16-bit upper half section relative relocation. */ |
252b5132 RH |
747 | HOWTO (R_PPC_SECTOFF_HI, /* type */ |
748 | 16, /* rightshift */ | |
749 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
750 | 16, /* bitsize */ | |
b34976b6 | 751 | FALSE, /* pc_relative */ |
252b5132 RH |
752 | 0, /* bitpos */ |
753 | complain_overflow_bitfield, /* complain_on_overflow */ | |
754 | bfd_elf_generic_reloc, /* special_function */ | |
755 | "R_PPC_SECTOFF_HI", /* name */ | |
b34976b6 | 756 | FALSE, /* partial_inplace */ |
252b5132 RH |
757 | 0, /* src_mask */ |
758 | 0xffff, /* dst_mask */ | |
b34976b6 | 759 | FALSE), /* pcrel_offset */ |
252b5132 | 760 | |
c3668558 | 761 | /* 16-bit upper half adjusted section relative relocation. */ |
252b5132 RH |
762 | HOWTO (R_PPC_SECTOFF_HA, /* type */ |
763 | 16, /* rightshift */ | |
764 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
765 | 16, /* bitsize */ | |
b34976b6 | 766 | FALSE, /* pc_relative */ |
252b5132 RH |
767 | 0, /* bitpos */ |
768 | complain_overflow_bitfield, /* complain_on_overflow */ | |
769 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
770 | "R_PPC_SECTOFF_HA", /* name */ | |
b34976b6 | 771 | FALSE, /* partial_inplace */ |
252b5132 RH |
772 | 0, /* src_mask */ |
773 | 0xffff, /* dst_mask */ | |
b34976b6 | 774 | FALSE), /* pcrel_offset */ |
252b5132 | 775 | |
727fc41e | 776 | /* Marker relocs for TLS. */ |
7619e7c7 | 777 | HOWTO (R_PPC_TLS, |
252b5132 RH |
778 | 0, /* rightshift */ |
779 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
780 | 32, /* bitsize */ | |
b34976b6 | 781 | FALSE, /* pc_relative */ |
252b5132 | 782 | 0, /* bitpos */ |
7619e7c7 | 783 | complain_overflow_dont, /* complain_on_overflow */ |
252b5132 | 784 | bfd_elf_generic_reloc, /* special_function */ |
7619e7c7 AM |
785 | "R_PPC_TLS", /* name */ |
786 | FALSE, /* partial_inplace */ | |
787 | 0, /* src_mask */ | |
788 | 0, /* dst_mask */ | |
789 | FALSE), /* pcrel_offset */ | |
790 | ||
727fc41e AM |
791 | HOWTO (R_PPC_TLSGD, |
792 | 0, /* rightshift */ | |
793 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
794 | 32, /* bitsize */ | |
795 | FALSE, /* pc_relative */ | |
796 | 0, /* bitpos */ | |
797 | complain_overflow_dont, /* complain_on_overflow */ | |
798 | bfd_elf_generic_reloc, /* special_function */ | |
799 | "R_PPC_TLSGD", /* name */ | |
800 | FALSE, /* partial_inplace */ | |
801 | 0, /* src_mask */ | |
802 | 0, /* dst_mask */ | |
803 | FALSE), /* pcrel_offset */ | |
804 | ||
805 | HOWTO (R_PPC_TLSLD, | |
806 | 0, /* rightshift */ | |
807 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
808 | 32, /* bitsize */ | |
809 | FALSE, /* pc_relative */ | |
810 | 0, /* bitpos */ | |
811 | complain_overflow_dont, /* complain_on_overflow */ | |
812 | bfd_elf_generic_reloc, /* special_function */ | |
813 | "R_PPC_TLSLD", /* name */ | |
814 | FALSE, /* partial_inplace */ | |
815 | 0, /* src_mask */ | |
816 | 0, /* dst_mask */ | |
817 | FALSE), /* pcrel_offset */ | |
818 | ||
7619e7c7 AM |
819 | /* Computes the load module index of the load module that contains the |
820 | definition of its TLS sym. */ | |
821 | HOWTO (R_PPC_DTPMOD32, | |
822 | 0, /* rightshift */ | |
823 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
824 | 32, /* bitsize */ | |
825 | FALSE, /* pc_relative */ | |
826 | 0, /* bitpos */ | |
827 | complain_overflow_dont, /* complain_on_overflow */ | |
828 | ppc_elf_unhandled_reloc, /* special_function */ | |
829 | "R_PPC_DTPMOD32", /* name */ | |
b34976b6 | 830 | FALSE, /* partial_inplace */ |
252b5132 RH |
831 | 0, /* src_mask */ |
832 | 0xffffffff, /* dst_mask */ | |
b34976b6 | 833 | FALSE), /* pcrel_offset */ |
252b5132 | 834 | |
7619e7c7 AM |
835 | /* Computes a dtv-relative displacement, the difference between the value |
836 | of sym+add and the base address of the thread-local storage block that | |
837 | contains the definition of sym, minus 0x8000. */ | |
838 | HOWTO (R_PPC_DTPREL32, | |
839 | 0, /* rightshift */ | |
840 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
841 | 32, /* bitsize */ | |
842 | FALSE, /* pc_relative */ | |
843 | 0, /* bitpos */ | |
844 | complain_overflow_dont, /* complain_on_overflow */ | |
845 | ppc_elf_unhandled_reloc, /* special_function */ | |
846 | "R_PPC_DTPREL32", /* name */ | |
847 | FALSE, /* partial_inplace */ | |
848 | 0, /* src_mask */ | |
849 | 0xffffffff, /* dst_mask */ | |
850 | FALSE), /* pcrel_offset */ | |
851 | ||
852 | /* A 16 bit dtprel reloc. */ | |
853 | HOWTO (R_PPC_DTPREL16, | |
252b5132 RH |
854 | 0, /* rightshift */ |
855 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
856 | 16, /* bitsize */ | |
b34976b6 | 857 | FALSE, /* pc_relative */ |
252b5132 | 858 | 0, /* bitpos */ |
7619e7c7 AM |
859 | complain_overflow_signed, /* complain_on_overflow */ |
860 | ppc_elf_unhandled_reloc, /* special_function */ | |
861 | "R_PPC_DTPREL16", /* name */ | |
b34976b6 | 862 | FALSE, /* partial_inplace */ |
252b5132 RH |
863 | 0, /* src_mask */ |
864 | 0xffff, /* dst_mask */ | |
b34976b6 | 865 | FALSE), /* pcrel_offset */ |
252b5132 | 866 | |
7619e7c7 AM |
867 | /* Like DTPREL16, but no overflow. */ |
868 | HOWTO (R_PPC_DTPREL16_LO, | |
252b5132 RH |
869 | 0, /* rightshift */ |
870 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
871 | 16, /* bitsize */ | |
b34976b6 | 872 | FALSE, /* pc_relative */ |
252b5132 | 873 | 0, /* bitpos */ |
7619e7c7 AM |
874 | complain_overflow_dont, /* complain_on_overflow */ |
875 | ppc_elf_unhandled_reloc, /* special_function */ | |
876 | "R_PPC_DTPREL16_LO", /* name */ | |
b34976b6 | 877 | FALSE, /* partial_inplace */ |
252b5132 RH |
878 | 0, /* src_mask */ |
879 | 0xffff, /* dst_mask */ | |
b34976b6 | 880 | FALSE), /* pcrel_offset */ |
252b5132 | 881 | |
7619e7c7 AM |
882 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ |
883 | HOWTO (R_PPC_DTPREL16_HI, | |
252b5132 RH |
884 | 16, /* rightshift */ |
885 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
886 | 16, /* bitsize */ | |
b34976b6 | 887 | FALSE, /* pc_relative */ |
252b5132 RH |
888 | 0, /* bitpos */ |
889 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
890 | ppc_elf_unhandled_reloc, /* special_function */ |
891 | "R_PPC_DTPREL16_HI", /* name */ | |
b34976b6 | 892 | FALSE, /* partial_inplace */ |
252b5132 RH |
893 | 0, /* src_mask */ |
894 | 0xffff, /* dst_mask */ | |
b34976b6 | 895 | FALSE), /* pcrel_offset */ |
252b5132 | 896 | |
7619e7c7 AM |
897 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ |
898 | HOWTO (R_PPC_DTPREL16_HA, | |
252b5132 RH |
899 | 16, /* rightshift */ |
900 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
901 | 16, /* bitsize */ | |
b34976b6 | 902 | FALSE, /* pc_relative */ |
252b5132 RH |
903 | 0, /* bitpos */ |
904 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
905 | ppc_elf_unhandled_reloc, /* special_function */ |
906 | "R_PPC_DTPREL16_HA", /* name */ | |
b34976b6 | 907 | FALSE, /* partial_inplace */ |
252b5132 RH |
908 | 0, /* src_mask */ |
909 | 0xffff, /* dst_mask */ | |
b34976b6 | 910 | FALSE), /* pcrel_offset */ |
252b5132 | 911 | |
7619e7c7 AM |
912 | /* Computes a tp-relative displacement, the difference between the value of |
913 | sym+add and the value of the thread pointer (r13). */ | |
914 | HOWTO (R_PPC_TPREL32, | |
915 | 0, /* rightshift */ | |
916 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
917 | 32, /* bitsize */ | |
918 | FALSE, /* pc_relative */ | |
919 | 0, /* bitpos */ | |
920 | complain_overflow_dont, /* complain_on_overflow */ | |
921 | ppc_elf_unhandled_reloc, /* special_function */ | |
922 | "R_PPC_TPREL32", /* name */ | |
923 | FALSE, /* partial_inplace */ | |
924 | 0, /* src_mask */ | |
925 | 0xffffffff, /* dst_mask */ | |
926 | FALSE), /* pcrel_offset */ | |
927 | ||
928 | /* A 16 bit tprel reloc. */ | |
929 | HOWTO (R_PPC_TPREL16, | |
252b5132 RH |
930 | 0, /* rightshift */ |
931 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
932 | 16, /* bitsize */ | |
b34976b6 | 933 | FALSE, /* pc_relative */ |
252b5132 | 934 | 0, /* bitpos */ |
7619e7c7 AM |
935 | complain_overflow_signed, /* complain_on_overflow */ |
936 | ppc_elf_unhandled_reloc, /* special_function */ | |
937 | "R_PPC_TPREL16", /* name */ | |
b34976b6 | 938 | FALSE, /* partial_inplace */ |
252b5132 RH |
939 | 0, /* src_mask */ |
940 | 0xffff, /* dst_mask */ | |
b34976b6 | 941 | FALSE), /* pcrel_offset */ |
252b5132 | 942 | |
7619e7c7 AM |
943 | /* Like TPREL16, but no overflow. */ |
944 | HOWTO (R_PPC_TPREL16_LO, | |
252b5132 RH |
945 | 0, /* rightshift */ |
946 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
947 | 16, /* bitsize */ | |
b34976b6 | 948 | FALSE, /* pc_relative */ |
252b5132 | 949 | 0, /* bitpos */ |
7619e7c7 AM |
950 | complain_overflow_dont, /* complain_on_overflow */ |
951 | ppc_elf_unhandled_reloc, /* special_function */ | |
952 | "R_PPC_TPREL16_LO", /* name */ | |
b34976b6 | 953 | FALSE, /* partial_inplace */ |
252b5132 RH |
954 | 0, /* src_mask */ |
955 | 0xffff, /* dst_mask */ | |
b34976b6 | 956 | FALSE), /* pcrel_offset */ |
252b5132 | 957 | |
7619e7c7 AM |
958 | /* Like TPREL16_LO, but next higher group of 16 bits. */ |
959 | HOWTO (R_PPC_TPREL16_HI, | |
960 | 16, /* rightshift */ | |
961 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
962 | 16, /* bitsize */ | |
963 | FALSE, /* pc_relative */ | |
964 | 0, /* bitpos */ | |
965 | complain_overflow_dont, /* complain_on_overflow */ | |
966 | ppc_elf_unhandled_reloc, /* special_function */ | |
967 | "R_PPC_TPREL16_HI", /* name */ | |
968 | FALSE, /* partial_inplace */ | |
969 | 0, /* src_mask */ | |
970 | 0xffff, /* dst_mask */ | |
971 | FALSE), /* pcrel_offset */ | |
972 | ||
973 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
974 | HOWTO (R_PPC_TPREL16_HA, | |
975 | 16, /* rightshift */ | |
976 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
977 | 16, /* bitsize */ | |
978 | FALSE, /* pc_relative */ | |
979 | 0, /* bitpos */ | |
980 | complain_overflow_dont, /* complain_on_overflow */ | |
981 | ppc_elf_unhandled_reloc, /* special_function */ | |
982 | "R_PPC_TPREL16_HA", /* name */ | |
983 | FALSE, /* partial_inplace */ | |
984 | 0, /* src_mask */ | |
985 | 0xffff, /* dst_mask */ | |
986 | FALSE), /* pcrel_offset */ | |
987 | ||
988 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
989 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
990 | to the first entry. */ | |
991 | HOWTO (R_PPC_GOT_TLSGD16, | |
252b5132 RH |
992 | 0, /* rightshift */ |
993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
994 | 16, /* bitsize */ | |
b34976b6 | 995 | FALSE, /* pc_relative */ |
252b5132 RH |
996 | 0, /* bitpos */ |
997 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
998 | ppc_elf_unhandled_reloc, /* special_function */ |
999 | "R_PPC_GOT_TLSGD16", /* name */ | |
b34976b6 | 1000 | FALSE, /* partial_inplace */ |
252b5132 RH |
1001 | 0, /* src_mask */ |
1002 | 0xffff, /* dst_mask */ | |
b34976b6 | 1003 | FALSE), /* pcrel_offset */ |
252b5132 | 1004 | |
7619e7c7 AM |
1005 | /* Like GOT_TLSGD16, but no overflow. */ |
1006 | HOWTO (R_PPC_GOT_TLSGD16_LO, | |
252b5132 | 1007 | 0, /* rightshift */ |
7619e7c7 | 1008 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
252b5132 | 1009 | 16, /* bitsize */ |
b34976b6 | 1010 | FALSE, /* pc_relative */ |
252b5132 | 1011 | 0, /* bitpos */ |
7619e7c7 AM |
1012 | complain_overflow_dont, /* complain_on_overflow */ |
1013 | ppc_elf_unhandled_reloc, /* special_function */ | |
1014 | "R_PPC_GOT_TLSGD16_LO", /* name */ | |
b34976b6 | 1015 | FALSE, /* partial_inplace */ |
252b5132 RH |
1016 | 0, /* src_mask */ |
1017 | 0xffff, /* dst_mask */ | |
b34976b6 | 1018 | FALSE), /* pcrel_offset */ |
252b5132 | 1019 | |
7619e7c7 AM |
1020 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
1021 | HOWTO (R_PPC_GOT_TLSGD16_HI, | |
1022 | 16, /* rightshift */ | |
1023 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1024 | 16, /* bitsize */ | |
1025 | FALSE, /* pc_relative */ | |
1026 | 0, /* bitpos */ | |
1027 | complain_overflow_dont, /* complain_on_overflow */ | |
1028 | ppc_elf_unhandled_reloc, /* special_function */ | |
1029 | "R_PPC_GOT_TLSGD16_HI", /* name */ | |
1030 | FALSE, /* partial_inplace */ | |
1031 | 0, /* src_mask */ | |
1032 | 0xffff, /* dst_mask */ | |
1033 | FALSE), /* pcrel_offset */ | |
252b5132 | 1034 | |
7619e7c7 AM |
1035 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
1036 | HOWTO (R_PPC_GOT_TLSGD16_HA, | |
1037 | 16, /* rightshift */ | |
1038 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1039 | 16, /* bitsize */ | |
1040 | FALSE, /* pc_relative */ | |
1041 | 0, /* bitpos */ | |
1042 | complain_overflow_dont, /* complain_on_overflow */ | |
1043 | ppc_elf_unhandled_reloc, /* special_function */ | |
1044 | "R_PPC_GOT_TLSGD16_HA", /* name */ | |
1045 | FALSE, /* partial_inplace */ | |
1046 | 0, /* src_mask */ | |
1047 | 0xffff, /* dst_mask */ | |
1048 | FALSE), /* pcrel_offset */ | |
1049 | ||
1050 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
1051 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
1052 | first entry. */ | |
1053 | HOWTO (R_PPC_GOT_TLSLD16, | |
252b5132 RH |
1054 | 0, /* rightshift */ |
1055 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1056 | 16, /* bitsize */ | |
7619e7c7 | 1057 | FALSE, /* pc_relative */ |
252b5132 RH |
1058 | 0, /* bitpos */ |
1059 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1060 | ppc_elf_unhandled_reloc, /* special_function */ |
1061 | "R_PPC_GOT_TLSLD16", /* name */ | |
b34976b6 | 1062 | FALSE, /* partial_inplace */ |
252b5132 RH |
1063 | 0, /* src_mask */ |
1064 | 0xffff, /* dst_mask */ | |
b34976b6 | 1065 | FALSE), /* pcrel_offset */ |
252b5132 | 1066 | |
7619e7c7 AM |
1067 | /* Like GOT_TLSLD16, but no overflow. */ |
1068 | HOWTO (R_PPC_GOT_TLSLD16_LO, | |
252b5132 | 1069 | 0, /* rightshift */ |
7619e7c7 AM |
1070 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
1071 | 16, /* bitsize */ | |
b34976b6 | 1072 | FALSE, /* pc_relative */ |
252b5132 RH |
1073 | 0, /* bitpos */ |
1074 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1075 | ppc_elf_unhandled_reloc, /* special_function */ |
1076 | "R_PPC_GOT_TLSLD16_LO", /* name */ | |
b34976b6 | 1077 | FALSE, /* partial_inplace */ |
252b5132 | 1078 | 0, /* src_mask */ |
7619e7c7 | 1079 | 0xffff, /* dst_mask */ |
b34976b6 | 1080 | FALSE), /* pcrel_offset */ |
252b5132 | 1081 | |
7619e7c7 AM |
1082 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
1083 | HOWTO (R_PPC_GOT_TLSLD16_HI, | |
1084 | 16, /* rightshift */ | |
1085 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1086 | 16, /* bitsize */ | |
b34976b6 | 1087 | FALSE, /* pc_relative */ |
252b5132 RH |
1088 | 0, /* bitpos */ |
1089 | complain_overflow_dont, /* complain_on_overflow */ | |
7619e7c7 AM |
1090 | ppc_elf_unhandled_reloc, /* special_function */ |
1091 | "R_PPC_GOT_TLSLD16_HI", /* name */ | |
b34976b6 | 1092 | FALSE, /* partial_inplace */ |
252b5132 | 1093 | 0, /* src_mask */ |
7619e7c7 | 1094 | 0xffff, /* dst_mask */ |
b34976b6 | 1095 | FALSE), /* pcrel_offset */ |
252b5132 | 1096 | |
7619e7c7 AM |
1097 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
1098 | HOWTO (R_PPC_GOT_TLSLD16_HA, | |
1099 | 16, /* rightshift */ | |
1100 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1101 | 16, /* bitsize */ | |
1102 | FALSE, /* pc_relative */ | |
1103 | 0, /* bitpos */ | |
1104 | complain_overflow_dont, /* complain_on_overflow */ | |
1105 | ppc_elf_unhandled_reloc, /* special_function */ | |
1106 | "R_PPC_GOT_TLSLD16_HA", /* name */ | |
1107 | FALSE, /* partial_inplace */ | |
1108 | 0, /* src_mask */ | |
1109 | 0xffff, /* dst_mask */ | |
1110 | FALSE), /* pcrel_offset */ | |
1111 | ||
1112 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes | |
1113 | the offset to the entry. */ | |
1114 | HOWTO (R_PPC_GOT_DTPREL16, | |
252b5132 RH |
1115 | 0, /* rightshift */ |
1116 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1117 | 16, /* bitsize */ | |
b34976b6 | 1118 | FALSE, /* pc_relative */ |
252b5132 RH |
1119 | 0, /* bitpos */ |
1120 | complain_overflow_signed, /* complain_on_overflow */ | |
7619e7c7 AM |
1121 | ppc_elf_unhandled_reloc, /* special_function */ |
1122 | "R_PPC_GOT_DTPREL16", /* name */ | |
b34976b6 | 1123 | FALSE, /* partial_inplace */ |
252b5132 RH |
1124 | 0, /* src_mask */ |
1125 | 0xffff, /* dst_mask */ | |
b34976b6 | 1126 | FALSE), /* pcrel_offset */ |
252b5132 | 1127 | |
7619e7c7 AM |
1128 | /* Like GOT_DTPREL16, but no overflow. */ |
1129 | HOWTO (R_PPC_GOT_DTPREL16_LO, | |
1130 | 0, /* rightshift */ | |
1131 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1132 | 16, /* bitsize */ | |
1133 | FALSE, /* pc_relative */ | |
1134 | 0, /* bitpos */ | |
1135 | complain_overflow_dont, /* complain_on_overflow */ | |
1136 | ppc_elf_unhandled_reloc, /* special_function */ | |
1137 | "R_PPC_GOT_DTPREL16_LO", /* name */ | |
1138 | FALSE, /* partial_inplace */ | |
1139 | 0, /* src_mask */ | |
1140 | 0xffff, /* dst_mask */ | |
1141 | FALSE), /* pcrel_offset */ | |
252b5132 | 1142 | |
7619e7c7 AM |
1143 | /* Like GOT_DTPREL16_LO, but next higher group of 16 bits. */ |
1144 | HOWTO (R_PPC_GOT_DTPREL16_HI, | |
1145 | 16, /* rightshift */ | |
1146 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1147 | 16, /* bitsize */ | |
1148 | FALSE, /* pc_relative */ | |
1149 | 0, /* bitpos */ | |
1150 | complain_overflow_dont, /* complain_on_overflow */ | |
1151 | ppc_elf_unhandled_reloc, /* special_function */ | |
1152 | "R_PPC_GOT_DTPREL16_HI", /* name */ | |
1153 | FALSE, /* partial_inplace */ | |
1154 | 0, /* src_mask */ | |
1155 | 0xffff, /* dst_mask */ | |
1156 | FALSE), /* pcrel_offset */ | |
252b5132 | 1157 | |
7619e7c7 AM |
1158 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
1159 | HOWTO (R_PPC_GOT_DTPREL16_HA, | |
1160 | 16, /* rightshift */ | |
1161 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1162 | 16, /* bitsize */ | |
1163 | FALSE, /* pc_relative */ | |
1164 | 0, /* bitpos */ | |
1165 | complain_overflow_dont, /* complain_on_overflow */ | |
1166 | ppc_elf_unhandled_reloc, /* special_function */ | |
1167 | "R_PPC_GOT_DTPREL16_HA", /* name */ | |
1168 | FALSE, /* partial_inplace */ | |
1169 | 0, /* src_mask */ | |
1170 | 0xffff, /* dst_mask */ | |
1171 | FALSE), /* pcrel_offset */ | |
c3668558 | 1172 | |
7619e7c7 AM |
1173 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the |
1174 | offset to the entry. */ | |
1175 | HOWTO (R_PPC_GOT_TPREL16, | |
1176 | 0, /* rightshift */ | |
1177 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1178 | 16, /* bitsize */ | |
1179 | FALSE, /* pc_relative */ | |
1180 | 0, /* bitpos */ | |
1181 | complain_overflow_signed, /* complain_on_overflow */ | |
1182 | ppc_elf_unhandled_reloc, /* special_function */ | |
1183 | "R_PPC_GOT_TPREL16", /* name */ | |
1184 | FALSE, /* partial_inplace */ | |
1185 | 0, /* src_mask */ | |
1186 | 0xffff, /* dst_mask */ | |
1187 | FALSE), /* pcrel_offset */ | |
1188 | ||
1189 | /* Like GOT_TPREL16, but no overflow. */ | |
1190 | HOWTO (R_PPC_GOT_TPREL16_LO, | |
1191 | 0, /* rightshift */ | |
1192 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1193 | 16, /* bitsize */ | |
1194 | FALSE, /* pc_relative */ | |
1195 | 0, /* bitpos */ | |
1196 | complain_overflow_dont, /* complain_on_overflow */ | |
1197 | ppc_elf_unhandled_reloc, /* special_function */ | |
1198 | "R_PPC_GOT_TPREL16_LO", /* name */ | |
1199 | FALSE, /* partial_inplace */ | |
1200 | 0, /* src_mask */ | |
1201 | 0xffff, /* dst_mask */ | |
1202 | FALSE), /* pcrel_offset */ | |
1203 | ||
1204 | /* Like GOT_TPREL16_LO, but next higher group of 16 bits. */ | |
1205 | HOWTO (R_PPC_GOT_TPREL16_HI, | |
1206 | 16, /* rightshift */ | |
1207 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1208 | 16, /* bitsize */ | |
1209 | FALSE, /* pc_relative */ | |
1210 | 0, /* bitpos */ | |
1211 | complain_overflow_dont, /* complain_on_overflow */ | |
1212 | ppc_elf_unhandled_reloc, /* special_function */ | |
1213 | "R_PPC_GOT_TPREL16_HI", /* name */ | |
1214 | FALSE, /* partial_inplace */ | |
1215 | 0, /* src_mask */ | |
1216 | 0xffff, /* dst_mask */ | |
1217 | FALSE), /* pcrel_offset */ | |
1218 | ||
1219 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ | |
1220 | HOWTO (R_PPC_GOT_TPREL16_HA, | |
1221 | 16, /* rightshift */ | |
1222 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1223 | 16, /* bitsize */ | |
1224 | FALSE, /* pc_relative */ | |
1225 | 0, /* bitpos */ | |
1226 | complain_overflow_dont, /* complain_on_overflow */ | |
1227 | ppc_elf_unhandled_reloc, /* special_function */ | |
1228 | "R_PPC_GOT_TPREL16_HA", /* name */ | |
1229 | FALSE, /* partial_inplace */ | |
1230 | 0, /* src_mask */ | |
1231 | 0xffff, /* dst_mask */ | |
1232 | FALSE), /* pcrel_offset */ | |
1233 | ||
1234 | /* The remaining relocs are from the Embedded ELF ABI, and are not | |
1235 | in the SVR4 ELF ABI. */ | |
1236 | ||
1237 | /* 32 bit value resulting from the addend minus the symbol. */ | |
1238 | HOWTO (R_PPC_EMB_NADDR32, /* type */ | |
1239 | 0, /* rightshift */ | |
1240 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1241 | 32, /* bitsize */ | |
1242 | FALSE, /* pc_relative */ | |
1243 | 0, /* bitpos */ | |
1244 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1245 | bfd_elf_generic_reloc, /* special_function */ | |
1246 | "R_PPC_EMB_NADDR32", /* name */ | |
1247 | FALSE, /* partial_inplace */ | |
1248 | 0, /* src_mask */ | |
1249 | 0xffffffff, /* dst_mask */ | |
1250 | FALSE), /* pcrel_offset */ | |
1251 | ||
1252 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1253 | HOWTO (R_PPC_EMB_NADDR16, /* type */ | |
1254 | 0, /* rightshift */ | |
1255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1256 | 16, /* bitsize */ | |
1257 | FALSE, /* pc_relative */ | |
1258 | 0, /* bitpos */ | |
1259 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1260 | bfd_elf_generic_reloc, /* special_function */ | |
1261 | "R_PPC_EMB_NADDR16", /* name */ | |
1262 | FALSE, /* partial_inplace */ | |
1263 | 0, /* src_mask */ | |
1264 | 0xffff, /* dst_mask */ | |
1265 | FALSE), /* pcrel_offset */ | |
1266 | ||
1267 | /* 16 bit value resulting from the addend minus the symbol. */ | |
1268 | HOWTO (R_PPC_EMB_NADDR16_LO, /* type */ | |
1269 | 0, /* rightshift */ | |
1270 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1271 | 16, /* bitsize */ | |
1272 | FALSE, /* pc_relative */ | |
1273 | 0, /* bitpos */ | |
1274 | complain_overflow_dont,/* complain_on_overflow */ | |
1275 | bfd_elf_generic_reloc, /* special_function */ | |
1276 | "R_PPC_EMB_ADDR16_LO", /* name */ | |
1277 | FALSE, /* partial_inplace */ | |
1278 | 0, /* src_mask */ | |
1279 | 0xffff, /* dst_mask */ | |
1280 | FALSE), /* pcrel_offset */ | |
1281 | ||
1282 | /* The high order 16 bits of the addend minus the symbol. */ | |
1283 | HOWTO (R_PPC_EMB_NADDR16_HI, /* type */ | |
1284 | 16, /* rightshift */ | |
1285 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1286 | 16, /* bitsize */ | |
1287 | FALSE, /* pc_relative */ | |
1288 | 0, /* bitpos */ | |
1289 | complain_overflow_dont, /* complain_on_overflow */ | |
1290 | bfd_elf_generic_reloc, /* special_function */ | |
1291 | "R_PPC_EMB_NADDR16_HI", /* name */ | |
1292 | FALSE, /* partial_inplace */ | |
1293 | 0, /* src_mask */ | |
1294 | 0xffff, /* dst_mask */ | |
1295 | FALSE), /* pcrel_offset */ | |
1296 | ||
1297 | /* The high order 16 bits of the result of the addend minus the address, | |
1298 | plus 1 if the contents of the low 16 bits, treated as a signed number, | |
1299 | is negative. */ | |
1300 | HOWTO (R_PPC_EMB_NADDR16_HA, /* type */ | |
1301 | 16, /* rightshift */ | |
1302 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1303 | 16, /* bitsize */ | |
1304 | FALSE, /* pc_relative */ | |
1305 | 0, /* bitpos */ | |
1306 | complain_overflow_dont, /* complain_on_overflow */ | |
25dbc73a AM |
1307 | ppc_elf_addr16_ha_reloc, /* special_function */ |
1308 | "R_PPC_EMB_NADDR16_HA", /* name */ | |
1309 | FALSE, /* partial_inplace */ | |
1310 | 0, /* src_mask */ | |
1311 | 0xffff, /* dst_mask */ | |
1312 | FALSE), /* pcrel_offset */ | |
1313 | ||
1314 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1315 | address in the .sdata section, and returning the offset from | |
1316 | _SDA_BASE_ for that relocation. */ | |
1317 | HOWTO (R_PPC_EMB_SDAI16, /* type */ | |
1318 | 0, /* rightshift */ | |
1319 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1320 | 16, /* bitsize */ | |
1321 | FALSE, /* pc_relative */ | |
1322 | 0, /* bitpos */ | |
bd6c6e2b | 1323 | complain_overflow_signed, /* complain_on_overflow */ |
25dbc73a AM |
1324 | bfd_elf_generic_reloc, /* special_function */ |
1325 | "R_PPC_EMB_SDAI16", /* name */ | |
1326 | FALSE, /* partial_inplace */ | |
1327 | 0, /* src_mask */ | |
1328 | 0xffff, /* dst_mask */ | |
1329 | FALSE), /* pcrel_offset */ | |
1330 | ||
1331 | /* 16 bit value resulting from allocating a 4 byte word to hold an | |
1332 | address in the .sdata2 section, and returning the offset from | |
1333 | _SDA2_BASE_ for that relocation. */ | |
1334 | HOWTO (R_PPC_EMB_SDA2I16, /* type */ | |
1335 | 0, /* rightshift */ | |
1336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1337 | 16, /* bitsize */ | |
1338 | FALSE, /* pc_relative */ | |
1339 | 0, /* bitpos */ | |
bd6c6e2b | 1340 | complain_overflow_signed, /* complain_on_overflow */ |
25dbc73a AM |
1341 | bfd_elf_generic_reloc, /* special_function */ |
1342 | "R_PPC_EMB_SDA2I16", /* name */ | |
1343 | FALSE, /* partial_inplace */ | |
1344 | 0, /* src_mask */ | |
1345 | 0xffff, /* dst_mask */ | |
1346 | FALSE), /* pcrel_offset */ | |
1347 | ||
1348 | /* A sign-extended 16 bit value relative to _SDA2_BASE_, for use with | |
1349 | small data items. */ | |
1350 | HOWTO (R_PPC_EMB_SDA2REL, /* type */ | |
1351 | 0, /* rightshift */ | |
1352 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1353 | 16, /* bitsize */ | |
1354 | FALSE, /* pc_relative */ | |
1355 | 0, /* bitpos */ | |
1356 | complain_overflow_signed, /* complain_on_overflow */ | |
1357 | bfd_elf_generic_reloc, /* special_function */ | |
1358 | "R_PPC_EMB_SDA2REL", /* name */ | |
1359 | FALSE, /* partial_inplace */ | |
1360 | 0, /* src_mask */ | |
1361 | 0xffff, /* dst_mask */ | |
1362 | FALSE), /* pcrel_offset */ | |
1363 | ||
1364 | /* Relocate against either _SDA_BASE_ or _SDA2_BASE_, filling in the 16 bit | |
1365 | signed offset from the appropriate base, and filling in the register | |
1366 | field with the appropriate register (0, 2, or 13). */ | |
1367 | HOWTO (R_PPC_EMB_SDA21, /* type */ | |
1368 | 0, /* rightshift */ | |
1369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1370 | 16, /* bitsize */ | |
1371 | FALSE, /* pc_relative */ | |
1372 | 0, /* bitpos */ | |
1373 | complain_overflow_signed, /* complain_on_overflow */ | |
1374 | bfd_elf_generic_reloc, /* special_function */ | |
1375 | "R_PPC_EMB_SDA21", /* name */ | |
1376 | FALSE, /* partial_inplace */ | |
1377 | 0, /* src_mask */ | |
1378 | 0xffff, /* dst_mask */ | |
1379 | FALSE), /* pcrel_offset */ | |
1380 | ||
1381 | /* Relocation not handled: R_PPC_EMB_MRKREF */ | |
1382 | /* Relocation not handled: R_PPC_EMB_RELSEC16 */ | |
1383 | /* Relocation not handled: R_PPC_EMB_RELST_LO */ | |
1384 | /* Relocation not handled: R_PPC_EMB_RELST_HI */ | |
1385 | /* Relocation not handled: R_PPC_EMB_RELST_HA */ | |
1386 | /* Relocation not handled: R_PPC_EMB_BIT_FLD */ | |
1387 | ||
1388 | /* PC relative relocation against either _SDA_BASE_ or _SDA2_BASE_, filling | |
1389 | in the 16 bit signed offset from the appropriate base, and filling in the | |
1390 | register field with the appropriate register (0, 2, or 13). */ | |
1391 | HOWTO (R_PPC_EMB_RELSDA, /* type */ | |
1392 | 0, /* rightshift */ | |
1393 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1394 | 16, /* bitsize */ | |
ddfd6795 | 1395 | FALSE, /* pc_relative */ |
25dbc73a AM |
1396 | 0, /* bitpos */ |
1397 | complain_overflow_signed, /* complain_on_overflow */ | |
1398 | bfd_elf_generic_reloc, /* special_function */ | |
1399 | "R_PPC_EMB_RELSDA", /* name */ | |
1400 | FALSE, /* partial_inplace */ | |
1401 | 0, /* src_mask */ | |
1402 | 0xffff, /* dst_mask */ | |
1403 | FALSE), /* pcrel_offset */ | |
1404 | ||
b9c361e0 JL |
1405 | /* A relative 8 bit branch. */ |
1406 | HOWTO (R_PPC_VLE_REL8, /* type */ | |
1407 | 1, /* rightshift */ | |
1408 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1409 | 8, /* bitsize */ | |
1410 | TRUE, /* pc_relative */ | |
1411 | 0, /* bitpos */ | |
1412 | complain_overflow_signed, /* complain_on_overflow */ | |
1413 | bfd_elf_generic_reloc, /* special_function */ | |
1414 | "R_PPC_VLE_REL8", /* name */ | |
1415 | FALSE, /* partial_inplace */ | |
1416 | 0, /* src_mask */ | |
1417 | 0xff, /* dst_mask */ | |
1418 | TRUE), /* pcrel_offset */ | |
68ffbac6 | 1419 | |
b9c361e0 JL |
1420 | /* A relative 15 bit branch. */ |
1421 | HOWTO (R_PPC_VLE_REL15, /* type */ | |
1422 | 1, /* rightshift */ | |
1423 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1424 | 15, /* bitsize */ | |
1425 | TRUE, /* pc_relative */ | |
1426 | 1, /* bitpos */ | |
1427 | complain_overflow_signed, /* complain_on_overflow */ | |
1428 | bfd_elf_generic_reloc, /* special_function */ | |
1429 | "R_PPC_VLE_REL15", /* name */ | |
1430 | FALSE, /* partial_inplace */ | |
1431 | 0, /* src_mask */ | |
1432 | 0xfe, /* dst_mask */ | |
1433 | TRUE), /* pcrel_offset */ | |
1434 | ||
68ffbac6 | 1435 | /* A relative 24 bit branch. */ |
b9c361e0 JL |
1436 | HOWTO (R_PPC_VLE_REL24, /* type */ |
1437 | 1, /* rightshift */ | |
1438 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1439 | 24, /* bitsize */ | |
1440 | TRUE, /* pc_relative */ | |
1441 | 1, /* bitpos */ | |
1442 | complain_overflow_signed, /* complain_on_overflow */ | |
1443 | bfd_elf_generic_reloc, /* special_function */ | |
1444 | "R_PPC_VLE_REL24", /* name */ | |
1445 | FALSE, /* partial_inplace */ | |
1446 | 0, /* src_mask */ | |
1447 | 0x1fffffe, /* dst_mask */ | |
1448 | TRUE), /* pcrel_offset */ | |
1449 | ||
1450 | /* The 16 LSBS in split16a format. */ | |
1451 | HOWTO (R_PPC_VLE_LO16A, /* type */ | |
1452 | 0, /* rightshift */ | |
1453 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1454 | 32, /* bitsize */ | |
bdaacd3a | 1455 | FALSE, /* pc_relative */ |
b9c361e0 JL |
1456 | 0, /* bitpos */ |
1457 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1458 | bfd_elf_generic_reloc, /* special_function */ | |
1459 | "R_PPC_VLE_LO16A", /* name */ | |
1460 | FALSE, /* partial_inplace */ | |
1461 | 0, /* src_mask */ | |
bdaacd3a | 1462 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1463 | FALSE), /* pcrel_offset */ |
1464 | ||
1465 | /* The 16 LSBS in split16d format. */ | |
1466 | HOWTO (R_PPC_VLE_LO16D, /* type */ | |
1467 | 0, /* rightshift */ | |
1468 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1469 | 32, /* bitsize */ | |
1470 | FALSE, /* pc_relative */ | |
1471 | 0, /* bitpos */ | |
1472 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1473 | bfd_elf_generic_reloc, /* special_function */ | |
1474 | "R_PPC_VLE_LO16D", /* name */ | |
1475 | FALSE, /* partial_inplace */ | |
1476 | 0, /* src_mask */ | |
1477 | 0x1f07ff, /* dst_mask */ | |
1478 | FALSE), /* pcrel_offset */ | |
1479 | ||
1480 | /* Bits 16-31 split16a format. */ | |
1481 | HOWTO (R_PPC_VLE_HI16A, /* type */ | |
1482 | 0, /* rightshift */ | |
1483 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1484 | 32, /* bitsize */ | |
1485 | FALSE, /* pc_relative */ | |
1486 | 0, /* bitpos */ | |
1487 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1488 | bfd_elf_generic_reloc, /* special_function */ | |
1489 | "R_PPC_VLE_HI16A", /* name */ | |
1490 | FALSE, /* partial_inplace */ | |
1491 | 0, /* src_mask */ | |
bdaacd3a | 1492 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1493 | FALSE), /* pcrel_offset */ |
1494 | ||
1495 | /* Bits 16-31 split16d format. */ | |
1496 | HOWTO (R_PPC_VLE_HI16D, /* type */ | |
1497 | 0, /* rightshift */ | |
1498 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1499 | 32, /* bitsize */ | |
1500 | FALSE, /* pc_relative */ | |
1501 | 0, /* bitpos */ | |
1502 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1503 | bfd_elf_generic_reloc, /* special_function */ | |
1504 | "R_PPC_VLE_HI16D", /* name */ | |
1505 | FALSE, /* partial_inplace */ | |
1506 | 0, /* src_mask */ | |
1507 | 0x1f07ff, /* dst_mask */ | |
1508 | FALSE), /* pcrel_offset */ | |
1509 | ||
1510 | /* Bits 16-31 (High Adjusted) in split16a format. */ | |
1511 | HOWTO (R_PPC_VLE_HA16A, /* type */ | |
1512 | 0, /* rightshift */ | |
1513 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1514 | 32, /* bitsize */ | |
1515 | FALSE, /* pc_relative */ | |
1516 | 0, /* bitpos */ | |
1517 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1518 | bfd_elf_generic_reloc, /* special_function */ | |
1519 | "R_PPC_VLE_HA16A", /* name */ | |
1520 | FALSE, /* partial_inplace */ | |
1521 | 0, /* src_mask */ | |
bdaacd3a | 1522 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1523 | FALSE), /* pcrel_offset */ |
1524 | ||
1525 | /* Bits 16-31 (High Adjusted) in split16d format. */ | |
1526 | HOWTO (R_PPC_VLE_HA16D, /* type */ | |
1527 | 0, /* rightshift */ | |
1528 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1529 | 32, /* bitsize */ | |
1530 | FALSE, /* pc_relative */ | |
1531 | 0, /* bitpos */ | |
1532 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1533 | bfd_elf_generic_reloc, /* special_function */ | |
1534 | "R_PPC_VLE_HA16D", /* name */ | |
1535 | FALSE, /* partial_inplace */ | |
1536 | 0, /* src_mask */ | |
1537 | 0x1f07ff, /* dst_mask */ | |
1538 | FALSE), /* pcrel_offset */ | |
1539 | ||
1540 | /* This reloc does nothing. */ | |
1541 | HOWTO (R_PPC_VLE_SDA21, /* type */ | |
1542 | 0, /* rightshift */ | |
1543 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1544 | 32, /* bitsize */ | |
1545 | FALSE, /* pc_relative */ | |
1546 | 0, /* bitpos */ | |
1547 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1548 | bfd_elf_generic_reloc, /* special_function */ | |
1549 | "R_PPC_VLE_SDA21", /* name */ | |
1550 | FALSE, /* partial_inplace */ | |
1551 | 0, /* src_mask */ | |
1552 | 0xffff, /* dst_mask */ | |
1553 | FALSE), /* pcrel_offset */ | |
1554 | ||
1555 | /* This reloc does nothing. */ | |
1556 | HOWTO (R_PPC_VLE_SDA21_LO, /* type */ | |
1557 | 0, /* rightshift */ | |
1558 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1559 | 32, /* bitsize */ | |
1560 | FALSE, /* pc_relative */ | |
1561 | 0, /* bitpos */ | |
1562 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1563 | bfd_elf_generic_reloc, /* special_function */ | |
1564 | "R_PPC_VLE_SDA21_LO", /* name */ | |
1565 | FALSE, /* partial_inplace */ | |
1566 | 0, /* src_mask */ | |
1567 | 0, /* dst_mask */ | |
1568 | FALSE), /* pcrel_offset */ | |
1569 | ||
1570 | /* The 16 LSBS relative to _SDA_BASE_ in split16a format. */ | |
1571 | HOWTO (R_PPC_VLE_SDAREL_LO16A,/* type */ | |
1572 | 0, /* rightshift */ | |
1573 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1574 | 32, /* bitsize */ | |
1575 | FALSE, /* pc_relative */ | |
1576 | 0, /* bitpos */ | |
1577 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1578 | bfd_elf_generic_reloc, /* special_function */ | |
1579 | "R_PPC_VLE_SDAREL_LO16A", /* name */ | |
1580 | FALSE, /* partial_inplace */ | |
1581 | 0, /* src_mask */ | |
bdaacd3a | 1582 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1583 | FALSE), /* pcrel_offset */ |
1584 | ||
1585 | /* The 16 LSBS relative to _SDA_BASE_ in split16d format. */ | |
1586 | /* This reloc does nothing. */ | |
1587 | HOWTO (R_PPC_VLE_SDAREL_LO16D, /* type */ | |
1588 | 0, /* rightshift */ | |
1589 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1590 | 32, /* bitsize */ | |
1591 | FALSE, /* pc_relative */ | |
1592 | 0, /* bitpos */ | |
1593 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1594 | bfd_elf_generic_reloc, /* special_function */ | |
1595 | "R_PPC_VLE_SDAREL_LO16D", /* name */ | |
1596 | FALSE, /* partial_inplace */ | |
1597 | 0, /* src_mask */ | |
1598 | 0x1f07ff, /* dst_mask */ | |
1599 | FALSE), /* pcrel_offset */ | |
1600 | ||
1601 | /* Bits 16-31 relative to _SDA_BASE_ in split16a format. */ | |
1602 | HOWTO (R_PPC_VLE_SDAREL_HI16A, /* type */ | |
1603 | 0, /* rightshift */ | |
1604 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1605 | 32, /* bitsize */ | |
1606 | FALSE, /* pc_relative */ | |
1607 | 0, /* bitpos */ | |
1608 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1609 | bfd_elf_generic_reloc, /* special_function */ | |
1610 | "R_PPC_VLE_SDAREL_HI16A", /* name */ | |
1611 | FALSE, /* partial_inplace */ | |
1612 | 0, /* src_mask */ | |
bdaacd3a | 1613 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1614 | FALSE), /* pcrel_offset */ |
1615 | ||
1616 | /* Bits 16-31 relative to _SDA_BASE_ in split16d format. */ | |
1617 | HOWTO (R_PPC_VLE_SDAREL_HI16D, /* type */ | |
1618 | 0, /* rightshift */ | |
1619 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1620 | 32, /* bitsize */ | |
1621 | FALSE, /* pc_relative */ | |
1622 | 0, /* bitpos */ | |
1623 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1624 | bfd_elf_generic_reloc, /* special_function */ | |
1625 | "R_PPC_VLE_SDAREL_HI16D", /* name */ | |
1626 | FALSE, /* partial_inplace */ | |
1627 | 0, /* src_mask */ | |
1628 | 0x1f07ff, /* dst_mask */ | |
1629 | FALSE), /* pcrel_offset */ | |
1630 | ||
1631 | /* Bits 16-31 (HA) relative to _SDA_BASE split16a format. */ | |
1632 | HOWTO (R_PPC_VLE_SDAREL_HA16A, /* type */ | |
1633 | 0, /* rightshift */ | |
1634 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1635 | 32, /* bitsize */ | |
1636 | FALSE, /* pc_relative */ | |
1637 | 0, /* bitpos */ | |
1638 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1639 | bfd_elf_generic_reloc, /* special_function */ | |
1640 | "R_PPC_VLE_SDAREL_HA16A", /* name */ | |
1641 | FALSE, /* partial_inplace */ | |
1642 | 0, /* src_mask */ | |
bdaacd3a | 1643 | 0x1f007ff, /* dst_mask */ |
b9c361e0 JL |
1644 | FALSE), /* pcrel_offset */ |
1645 | ||
1646 | /* Bits 16-31 (HA) relative to _SDA_BASE split16d format. */ | |
1647 | HOWTO (R_PPC_VLE_SDAREL_HA16D, /* type */ | |
1648 | 0, /* rightshift */ | |
1649 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1650 | 32, /* bitsize */ | |
1651 | FALSE, /* pc_relative */ | |
1652 | 0, /* bitpos */ | |
1653 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1654 | bfd_elf_generic_reloc, /* special_function */ | |
1655 | "R_PPC_VLE_SDAREL_HA16D", /* name */ | |
1656 | FALSE, /* partial_inplace */ | |
1657 | 0, /* src_mask */ | |
1658 | 0x1f07ff, /* dst_mask */ | |
1659 | FALSE), /* pcrel_offset */ | |
1660 | ||
e054468f AM |
1661 | HOWTO (R_PPC_IRELATIVE, /* type */ |
1662 | 0, /* rightshift */ | |
1663 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
1664 | 32, /* bitsize */ | |
1665 | FALSE, /* pc_relative */ | |
1666 | 0, /* bitpos */ | |
1667 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1668 | bfd_elf_generic_reloc, /* special_function */ | |
1669 | "R_PPC_IRELATIVE", /* name */ | |
1670 | FALSE, /* partial_inplace */ | |
1671 | 0, /* src_mask */ | |
1672 | 0xffffffff, /* dst_mask */ | |
1673 | FALSE), /* pcrel_offset */ | |
1674 | ||
d7128ce4 AM |
1675 | /* A 16 bit relative relocation. */ |
1676 | HOWTO (R_PPC_REL16, /* type */ | |
1677 | 0, /* rightshift */ | |
1678 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1679 | 16, /* bitsize */ | |
1680 | TRUE, /* pc_relative */ | |
1681 | 0, /* bitpos */ | |
1682 | complain_overflow_bitfield, /* complain_on_overflow */ | |
1683 | bfd_elf_generic_reloc, /* special_function */ | |
1684 | "R_PPC_REL16", /* name */ | |
1685 | FALSE, /* partial_inplace */ | |
1686 | 0, /* src_mask */ | |
1687 | 0xffff, /* dst_mask */ | |
1688 | TRUE), /* pcrel_offset */ | |
1689 | ||
1690 | /* A 16 bit relative relocation without overflow. */ | |
1691 | HOWTO (R_PPC_REL16_LO, /* type */ | |
1692 | 0, /* rightshift */ | |
1693 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1694 | 16, /* bitsize */ | |
1695 | TRUE, /* pc_relative */ | |
1696 | 0, /* bitpos */ | |
1697 | complain_overflow_dont,/* complain_on_overflow */ | |
1698 | bfd_elf_generic_reloc, /* special_function */ | |
1699 | "R_PPC_REL16_LO", /* name */ | |
1700 | FALSE, /* partial_inplace */ | |
1701 | 0, /* src_mask */ | |
1702 | 0xffff, /* dst_mask */ | |
1703 | TRUE), /* pcrel_offset */ | |
1704 | ||
1705 | /* The high order 16 bits of a relative address. */ | |
1706 | HOWTO (R_PPC_REL16_HI, /* type */ | |
1707 | 16, /* rightshift */ | |
1708 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1709 | 16, /* bitsize */ | |
1710 | TRUE, /* pc_relative */ | |
1711 | 0, /* bitpos */ | |
1712 | complain_overflow_dont, /* complain_on_overflow */ | |
1713 | bfd_elf_generic_reloc, /* special_function */ | |
1714 | "R_PPC_REL16_HI", /* name */ | |
1715 | FALSE, /* partial_inplace */ | |
1716 | 0, /* src_mask */ | |
1717 | 0xffff, /* dst_mask */ | |
1718 | TRUE), /* pcrel_offset */ | |
1719 | ||
1720 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
1721 | the low 16 bits, treated as a signed number, is negative. */ | |
1722 | HOWTO (R_PPC_REL16_HA, /* type */ | |
1723 | 16, /* rightshift */ | |
1724 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1725 | 16, /* bitsize */ | |
1726 | TRUE, /* pc_relative */ | |
1727 | 0, /* bitpos */ | |
1728 | complain_overflow_dont, /* complain_on_overflow */ | |
1729 | ppc_elf_addr16_ha_reloc, /* special_function */ | |
1730 | "R_PPC_REL16_HA", /* name */ | |
1731 | FALSE, /* partial_inplace */ | |
1732 | 0, /* src_mask */ | |
1733 | 0xffff, /* dst_mask */ | |
1734 | TRUE), /* pcrel_offset */ | |
1735 | ||
25dbc73a AM |
1736 | /* GNU extension to record C++ vtable hierarchy. */ |
1737 | HOWTO (R_PPC_GNU_VTINHERIT, /* type */ | |
1738 | 0, /* rightshift */ | |
1739 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1740 | 0, /* bitsize */ | |
1741 | FALSE, /* pc_relative */ | |
1742 | 0, /* bitpos */ | |
1743 | complain_overflow_dont, /* complain_on_overflow */ | |
1744 | NULL, /* special_function */ | |
1745 | "R_PPC_GNU_VTINHERIT", /* name */ | |
1746 | FALSE, /* partial_inplace */ | |
1747 | 0, /* src_mask */ | |
1748 | 0, /* dst_mask */ | |
1749 | FALSE), /* pcrel_offset */ | |
1750 | ||
1751 | /* GNU extension to record C++ vtable member usage. */ | |
1752 | HOWTO (R_PPC_GNU_VTENTRY, /* type */ | |
1753 | 0, /* rightshift */ | |
1754 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
1755 | 0, /* bitsize */ | |
1756 | FALSE, /* pc_relative */ | |
1757 | 0, /* bitpos */ | |
1758 | complain_overflow_dont, /* complain_on_overflow */ | |
1759 | NULL, /* special_function */ | |
1760 | "R_PPC_GNU_VTENTRY", /* name */ | |
7619e7c7 AM |
1761 | FALSE, /* partial_inplace */ |
1762 | 0, /* src_mask */ | |
25dbc73a | 1763 | 0, /* dst_mask */ |
7619e7c7 AM |
1764 | FALSE), /* pcrel_offset */ |
1765 | ||
25dbc73a AM |
1766 | /* Phony reloc to handle AIX style TOC entries. */ |
1767 | HOWTO (R_PPC_TOC16, /* type */ | |
7619e7c7 AM |
1768 | 0, /* rightshift */ |
1769 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
1770 | 16, /* bitsize */ | |
1771 | FALSE, /* pc_relative */ | |
1772 | 0, /* bitpos */ | |
25dbc73a | 1773 | complain_overflow_signed, /* complain_on_overflow */ |
7619e7c7 | 1774 | bfd_elf_generic_reloc, /* special_function */ |
25dbc73a | 1775 | "R_PPC_TOC16", /* name */ |
7619e7c7 AM |
1776 | FALSE, /* partial_inplace */ |
1777 | 0, /* src_mask */ | |
1778 | 0xffff, /* dst_mask */ | |
1779 | FALSE), /* pcrel_offset */ | |
25dbc73a | 1780 | }; |
70a38d42 SDJ |
1781 | |
1782 | /* External 32-bit PPC structure for PRPSINFO. This structure is | |
1783 | ABI-defined, thus we choose to use char arrays here in order to | |
1784 | avoid dealing with different types in different architectures. | |
1785 | ||
1786 | The PPC 32-bit structure uses int for `pr_uid' and `pr_gid' while | |
1787 | most non-PPC architectures use `short int'. | |
1788 | ||
1789 | This structure will ultimately be written in the corefile's note | |
1790 | section, as the PRPSINFO. */ | |
1791 | ||
1792 | struct elf_external_ppc_linux_prpsinfo32 | |
1793 | { | |
1794 | char pr_state; /* Numeric process state. */ | |
1795 | char pr_sname; /* Char for pr_state. */ | |
1796 | char pr_zomb; /* Zombie. */ | |
1797 | char pr_nice; /* Nice val. */ | |
1798 | char pr_flag[4]; /* Flags. */ | |
1799 | char pr_uid[4]; | |
1800 | char pr_gid[4]; | |
1801 | char pr_pid[4]; | |
1802 | char pr_ppid[4]; | |
1803 | char pr_pgrp[4]; | |
1804 | char pr_sid[4]; | |
1805 | char pr_fname[16]; /* Filename of executable. */ | |
1806 | char pr_psargs[80]; /* Initial part of arg list. */ | |
1807 | }; | |
1808 | ||
1809 | /* Helper macro to swap (properly handling endianess) things from the | |
1810 | `elf_internal_prpsinfo' structure to the `elf_external_ppc_prpsinfo32' | |
1811 | structure. | |
1812 | ||
1813 | Note that FROM should be a pointer, and TO should be the explicit type. */ | |
1814 | ||
1815 | #define PPC_LINUX_PRPSINFO32_SWAP_FIELDS(abfd, from, to) \ | |
1816 | do \ | |
1817 | { \ | |
1818 | H_PUT_8 (abfd, from->pr_state, &to.pr_state); \ | |
1819 | H_PUT_8 (abfd, from->pr_sname, &to.pr_sname); \ | |
1820 | H_PUT_8 (abfd, from->pr_zomb, &to.pr_zomb); \ | |
1821 | H_PUT_8 (abfd, from->pr_nice, &to.pr_nice); \ | |
1822 | H_PUT_32 (abfd, from->pr_flag, to.pr_flag); \ | |
1823 | H_PUT_32 (abfd, from->pr_uid, to.pr_uid); \ | |
1824 | H_PUT_32 (abfd, from->pr_gid, to.pr_gid); \ | |
1825 | H_PUT_32 (abfd, from->pr_pid, to.pr_pid); \ | |
1826 | H_PUT_32 (abfd, from->pr_ppid, to.pr_ppid); \ | |
1827 | H_PUT_32 (abfd, from->pr_pgrp, to.pr_pgrp); \ | |
1828 | H_PUT_32 (abfd, from->pr_sid, to.pr_sid); \ | |
1829 | strncpy (to.pr_fname, from->pr_fname, sizeof (to.pr_fname)); \ | |
1830 | strncpy (to.pr_psargs, from->pr_psargs, sizeof (to.pr_psargs)); \ | |
1831 | } while (0) | |
1832 | ||
25dbc73a AM |
1833 | \f |
1834 | /* Initialize the ppc_elf_howto_table, so that linear accesses can be done. */ | |
1835 | ||
1836 | static void | |
1837 | ppc_elf_howto_init (void) | |
1838 | { | |
1839 | unsigned int i, type; | |
1840 | ||
1841 | for (i = 0; | |
1842 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
1843 | i++) | |
1844 | { | |
1845 | type = ppc_elf_howto_raw[i].type; | |
1846 | if (type >= (sizeof (ppc_elf_howto_table) | |
1847 | / sizeof (ppc_elf_howto_table[0]))) | |
1848 | abort (); | |
1849 | ppc_elf_howto_table[type] = &ppc_elf_howto_raw[i]; | |
1850 | } | |
1851 | } | |
1852 | ||
1853 | static reloc_howto_type * | |
1854 | ppc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
1855 | bfd_reloc_code_real_type code) | |
1856 | { | |
1857 | enum elf_ppc_reloc_type r; | |
1858 | ||
1859 | /* Initialize howto table if not already done. */ | |
1860 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
1861 | ppc_elf_howto_init (); | |
1862 | ||
1863 | switch (code) | |
1864 | { | |
1865 | default: | |
1866 | return NULL; | |
1867 | ||
1868 | case BFD_RELOC_NONE: r = R_PPC_NONE; break; | |
1869 | case BFD_RELOC_32: r = R_PPC_ADDR32; break; | |
1870 | case BFD_RELOC_PPC_BA26: r = R_PPC_ADDR24; break; | |
1fe532cf | 1871 | case BFD_RELOC_PPC64_ADDR16_DS: |
25dbc73a | 1872 | case BFD_RELOC_16: r = R_PPC_ADDR16; break; |
1fe532cf | 1873 | case BFD_RELOC_PPC64_ADDR16_LO_DS: |
25dbc73a AM |
1874 | case BFD_RELOC_LO16: r = R_PPC_ADDR16_LO; break; |
1875 | case BFD_RELOC_HI16: r = R_PPC_ADDR16_HI; break; | |
1876 | case BFD_RELOC_HI16_S: r = R_PPC_ADDR16_HA; break; | |
1877 | case BFD_RELOC_PPC_BA16: r = R_PPC_ADDR14; break; | |
1878 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC_ADDR14_BRTAKEN; break; | |
1879 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC_ADDR14_BRNTAKEN; break; | |
1880 | case BFD_RELOC_PPC_B26: r = R_PPC_REL24; break; | |
1881 | case BFD_RELOC_PPC_B16: r = R_PPC_REL14; break; | |
1882 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC_REL14_BRTAKEN; break; | |
1883 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC_REL14_BRNTAKEN; break; | |
1fe532cf | 1884 | case BFD_RELOC_PPC64_GOT16_DS: |
25dbc73a | 1885 | case BFD_RELOC_16_GOTOFF: r = R_PPC_GOT16; break; |
1fe532cf | 1886 | case BFD_RELOC_PPC64_GOT16_LO_DS: |
25dbc73a AM |
1887 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC_GOT16_LO; break; |
1888 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC_GOT16_HI; break; | |
1889 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC_GOT16_HA; break; | |
1890 | case BFD_RELOC_24_PLT_PCREL: r = R_PPC_PLTREL24; break; | |
1891 | case BFD_RELOC_PPC_COPY: r = R_PPC_COPY; break; | |
1892 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC_GLOB_DAT; break; | |
1893 | case BFD_RELOC_PPC_LOCAL24PC: r = R_PPC_LOCAL24PC; break; | |
1894 | case BFD_RELOC_32_PCREL: r = R_PPC_REL32; break; | |
1895 | case BFD_RELOC_32_PLTOFF: r = R_PPC_PLT32; break; | |
1896 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC_PLTREL32; break; | |
1fe532cf | 1897 | case BFD_RELOC_PPC64_PLT16_LO_DS: |
25dbc73a AM |
1898 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC_PLT16_LO; break; |
1899 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC_PLT16_HI; break; | |
1900 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC_PLT16_HA; break; | |
1901 | case BFD_RELOC_GPREL16: r = R_PPC_SDAREL16; break; | |
1fe532cf | 1902 | case BFD_RELOC_PPC64_SECTOFF_DS: |
25dbc73a | 1903 | case BFD_RELOC_16_BASEREL: r = R_PPC_SECTOFF; break; |
1fe532cf | 1904 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: |
25dbc73a AM |
1905 | case BFD_RELOC_LO16_BASEREL: r = R_PPC_SECTOFF_LO; break; |
1906 | case BFD_RELOC_HI16_BASEREL: r = R_PPC_SECTOFF_HI; break; | |
1907 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC_SECTOFF_HA; break; | |
1908 | case BFD_RELOC_CTOR: r = R_PPC_ADDR32; break; | |
1fe532cf | 1909 | case BFD_RELOC_PPC64_TOC16_DS: |
25dbc73a AM |
1910 | case BFD_RELOC_PPC_TOC16: r = R_PPC_TOC16; break; |
1911 | case BFD_RELOC_PPC_TLS: r = R_PPC_TLS; break; | |
727fc41e AM |
1912 | case BFD_RELOC_PPC_TLSGD: r = R_PPC_TLSGD; break; |
1913 | case BFD_RELOC_PPC_TLSLD: r = R_PPC_TLSLD; break; | |
25dbc73a | 1914 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC_DTPMOD32; break; |
1fe532cf | 1915 | case BFD_RELOC_PPC64_TPREL16_DS: |
25dbc73a | 1916 | case BFD_RELOC_PPC_TPREL16: r = R_PPC_TPREL16; break; |
1fe532cf | 1917 | case BFD_RELOC_PPC64_TPREL16_LO_DS: |
25dbc73a AM |
1918 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC_TPREL16_LO; break; |
1919 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC_TPREL16_HI; break; | |
1920 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC_TPREL16_HA; break; | |
1921 | case BFD_RELOC_PPC_TPREL: r = R_PPC_TPREL32; break; | |
1fe532cf | 1922 | case BFD_RELOC_PPC64_DTPREL16_DS: |
25dbc73a | 1923 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC_DTPREL16; break; |
1fe532cf | 1924 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: |
25dbc73a AM |
1925 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC_DTPREL16_LO; break; |
1926 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC_DTPREL16_HI; break; | |
1927 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC_DTPREL16_HA; break; | |
1928 | case BFD_RELOC_PPC_DTPREL: r = R_PPC_DTPREL32; break; | |
1929 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC_GOT_TLSGD16; break; | |
1930 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC_GOT_TLSGD16_LO; break; | |
1931 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC_GOT_TLSGD16_HI; break; | |
1932 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC_GOT_TLSGD16_HA; break; | |
1933 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC_GOT_TLSLD16; break; | |
1934 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC_GOT_TLSLD16_LO; break; | |
1935 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC_GOT_TLSLD16_HI; break; | |
1936 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC_GOT_TLSLD16_HA; break; | |
1937 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC_GOT_TPREL16; break; | |
1938 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC_GOT_TPREL16_LO; break; | |
1939 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC_GOT_TPREL16_HI; break; | |
1940 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC_GOT_TPREL16_HA; break; | |
1941 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC_GOT_DTPREL16; break; | |
1942 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC_GOT_DTPREL16_LO; break; | |
1943 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC_GOT_DTPREL16_HI; break; | |
1944 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC_GOT_DTPREL16_HA; break; | |
1945 | case BFD_RELOC_PPC_EMB_NADDR32: r = R_PPC_EMB_NADDR32; break; | |
1946 | case BFD_RELOC_PPC_EMB_NADDR16: r = R_PPC_EMB_NADDR16; break; | |
1947 | case BFD_RELOC_PPC_EMB_NADDR16_LO: r = R_PPC_EMB_NADDR16_LO; break; | |
1948 | case BFD_RELOC_PPC_EMB_NADDR16_HI: r = R_PPC_EMB_NADDR16_HI; break; | |
1949 | case BFD_RELOC_PPC_EMB_NADDR16_HA: r = R_PPC_EMB_NADDR16_HA; break; | |
1950 | case BFD_RELOC_PPC_EMB_SDAI16: r = R_PPC_EMB_SDAI16; break; | |
1951 | case BFD_RELOC_PPC_EMB_SDA2I16: r = R_PPC_EMB_SDA2I16; break; | |
1952 | case BFD_RELOC_PPC_EMB_SDA2REL: r = R_PPC_EMB_SDA2REL; break; | |
1953 | case BFD_RELOC_PPC_EMB_SDA21: r = R_PPC_EMB_SDA21; break; | |
1954 | case BFD_RELOC_PPC_EMB_MRKREF: r = R_PPC_EMB_MRKREF; break; | |
1955 | case BFD_RELOC_PPC_EMB_RELSEC16: r = R_PPC_EMB_RELSEC16; break; | |
1956 | case BFD_RELOC_PPC_EMB_RELST_LO: r = R_PPC_EMB_RELST_LO; break; | |
1957 | case BFD_RELOC_PPC_EMB_RELST_HI: r = R_PPC_EMB_RELST_HI; break; | |
1958 | case BFD_RELOC_PPC_EMB_RELST_HA: r = R_PPC_EMB_RELST_HA; break; | |
1959 | case BFD_RELOC_PPC_EMB_BIT_FLD: r = R_PPC_EMB_BIT_FLD; break; | |
1960 | case BFD_RELOC_PPC_EMB_RELSDA: r = R_PPC_EMB_RELSDA; break; | |
b9c361e0 JL |
1961 | case BFD_RELOC_PPC_VLE_REL8: r = R_PPC_VLE_REL8; break; |
1962 | case BFD_RELOC_PPC_VLE_REL15: r = R_PPC_VLE_REL15; break; | |
1963 | case BFD_RELOC_PPC_VLE_REL24: r = R_PPC_VLE_REL24; break; | |
1964 | case BFD_RELOC_PPC_VLE_LO16A: r = R_PPC_VLE_LO16A; break; | |
1965 | case BFD_RELOC_PPC_VLE_LO16D: r = R_PPC_VLE_LO16D; break; | |
1966 | case BFD_RELOC_PPC_VLE_HI16A: r = R_PPC_VLE_HI16A; break; | |
1967 | case BFD_RELOC_PPC_VLE_HI16D: r = R_PPC_VLE_HI16D; break; | |
1968 | case BFD_RELOC_PPC_VLE_HA16A: r = R_PPC_VLE_HA16A; break; | |
1969 | case BFD_RELOC_PPC_VLE_HA16D: r = R_PPC_VLE_HA16D; break; | |
1970 | case BFD_RELOC_PPC_VLE_SDA21: r = R_PPC_VLE_SDA21; break; | |
1971 | case BFD_RELOC_PPC_VLE_SDA21_LO: r = R_PPC_VLE_SDA21_LO; break; | |
1972 | case BFD_RELOC_PPC_VLE_SDAREL_LO16A: | |
1973 | r = R_PPC_VLE_SDAREL_LO16A; | |
1974 | break; | |
1975 | case BFD_RELOC_PPC_VLE_SDAREL_LO16D: | |
1976 | r = R_PPC_VLE_SDAREL_LO16D; | |
1977 | break; | |
1978 | case BFD_RELOC_PPC_VLE_SDAREL_HI16A: | |
1979 | r = R_PPC_VLE_SDAREL_HI16A; | |
1980 | break; | |
1981 | case BFD_RELOC_PPC_VLE_SDAREL_HI16D: | |
1982 | r = R_PPC_VLE_SDAREL_HI16D; | |
1983 | break; | |
1984 | case BFD_RELOC_PPC_VLE_SDAREL_HA16A: | |
1985 | r = R_PPC_VLE_SDAREL_HA16A; | |
1986 | break; | |
1987 | case BFD_RELOC_PPC_VLE_SDAREL_HA16D: | |
1988 | r = R_PPC_VLE_SDAREL_HA16D; | |
1989 | break; | |
d7128ce4 AM |
1990 | case BFD_RELOC_16_PCREL: r = R_PPC_REL16; break; |
1991 | case BFD_RELOC_LO16_PCREL: r = R_PPC_REL16_LO; break; | |
1992 | case BFD_RELOC_HI16_PCREL: r = R_PPC_REL16_HI; break; | |
1993 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC_REL16_HA; break; | |
25dbc73a AM |
1994 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC_GNU_VTINHERIT; break; |
1995 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC_GNU_VTENTRY; break; | |
1996 | } | |
1997 | ||
1998 | return ppc_elf_howto_table[r]; | |
1999 | }; | |
2000 | ||
157090f7 AM |
2001 | static reloc_howto_type * |
2002 | ppc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
2003 | const char *r_name) | |
2004 | { | |
2005 | unsigned int i; | |
2006 | ||
2007 | for (i = 0; | |
2008 | i < sizeof (ppc_elf_howto_raw) / sizeof (ppc_elf_howto_raw[0]); | |
2009 | i++) | |
2010 | if (ppc_elf_howto_raw[i].name != NULL | |
2011 | && strcasecmp (ppc_elf_howto_raw[i].name, r_name) == 0) | |
2012 | return &ppc_elf_howto_raw[i]; | |
2013 | ||
2014 | return NULL; | |
2015 | } | |
2016 | ||
25dbc73a AM |
2017 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
2018 | ||
2019 | static void | |
2020 | ppc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, | |
2021 | arelent *cache_ptr, | |
2022 | Elf_Internal_Rela *dst) | |
2023 | { | |
2024 | /* Initialize howto table if not already done. */ | |
2025 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
2026 | ppc_elf_howto_init (); | |
2027 | ||
2028 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_PPC_max); | |
2029 | cache_ptr->howto = ppc_elf_howto_table[ELF32_R_TYPE (dst->r_info)]; | |
375de94a AM |
2030 | |
2031 | /* Just because the above assert didn't trigger doesn't mean that | |
2032 | ELF32_R_TYPE (dst->r_info) is necessarily a valid relocation. */ | |
2033 | if (!cache_ptr->howto) | |
2034 | { | |
2035 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
2036 | abfd, ELF32_R_TYPE (dst->r_info)); | |
2037 | bfd_set_error (bfd_error_bad_value); | |
2038 | ||
2039 | cache_ptr->howto = ppc_elf_howto_table[R_PPC_NONE]; | |
2040 | } | |
25dbc73a AM |
2041 | } |
2042 | ||
d7128ce4 | 2043 | /* Handle the R_PPC_ADDR16_HA and R_PPC_REL16_HA relocs. */ |
25dbc73a AM |
2044 | |
2045 | static bfd_reloc_status_type | |
2046 | ppc_elf_addr16_ha_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
2047 | arelent *reloc_entry, | |
2048 | asymbol *symbol, | |
2049 | void *data ATTRIBUTE_UNUSED, | |
2050 | asection *input_section, | |
2051 | bfd *output_bfd, | |
2052 | char **error_message ATTRIBUTE_UNUSED) | |
2053 | { | |
2054 | bfd_vma relocation; | |
2055 | ||
2056 | if (output_bfd != NULL) | |
2057 | { | |
2058 | reloc_entry->address += input_section->output_offset; | |
2059 | return bfd_reloc_ok; | |
2060 | } | |
2061 | ||
2062 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
2063 | return bfd_reloc_outofrange; | |
2064 | ||
2065 | if (bfd_is_com_section (symbol->section)) | |
2066 | relocation = 0; | |
2067 | else | |
2068 | relocation = symbol->value; | |
2069 | ||
2070 | relocation += symbol->section->output_section->vma; | |
2071 | relocation += symbol->section->output_offset; | |
2072 | relocation += reloc_entry->addend; | |
d7128ce4 AM |
2073 | if (reloc_entry->howto->pc_relative) |
2074 | relocation -= reloc_entry->address; | |
25dbc73a AM |
2075 | |
2076 | reloc_entry->addend += (relocation & 0x8000) << 1; | |
2077 | ||
2078 | return bfd_reloc_continue; | |
2079 | } | |
2080 | ||
2081 | static bfd_reloc_status_type | |
2082 | ppc_elf_unhandled_reloc (bfd *abfd, | |
2083 | arelent *reloc_entry, | |
2084 | asymbol *symbol, | |
2085 | void *data, | |
2086 | asection *input_section, | |
2087 | bfd *output_bfd, | |
2088 | char **error_message) | |
2089 | { | |
2090 | /* If this is a relocatable link (output_bfd test tells us), just | |
2091 | call the generic function. Any adjustment will be done at final | |
2092 | link time. */ | |
2093 | if (output_bfd != NULL) | |
2094 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
2095 | input_section, output_bfd, error_message); | |
2096 | ||
2097 | if (error_message != NULL) | |
2098 | { | |
2099 | static char buf[60]; | |
2100 | sprintf (buf, _("generic linker can't handle %s"), | |
2101 | reloc_entry->howto->name); | |
2102 | *error_message = buf; | |
2103 | } | |
2104 | return bfd_reloc_dangerous; | |
2105 | } | |
2106 | \f | |
2107 | /* Sections created by the linker. */ | |
2108 | ||
2109 | typedef struct elf_linker_section | |
2110 | { | |
c9a2f333 | 2111 | /* Pointer to the bfd section. */ |
25dbc73a | 2112 | asection *section; |
c9a2f333 AM |
2113 | /* Section name. */ |
2114 | const char *name; | |
2115 | /* Associated bss section name. */ | |
2116 | const char *bss_name; | |
2117 | /* Associated symbol name. */ | |
2118 | const char *sym_name; | |
046183de AM |
2119 | /* Associated symbol. */ |
2120 | struct elf_link_hash_entry *sym; | |
25dbc73a AM |
2121 | } elf_linker_section_t; |
2122 | ||
2123 | /* Linked list of allocated pointer entries. This hangs off of the | |
2124 | symbol lists, and provides allows us to return different pointers, | |
2125 | based on different addend's. */ | |
2126 | ||
2127 | typedef struct elf_linker_section_pointers | |
2128 | { | |
2129 | /* next allocated pointer for this symbol */ | |
2130 | struct elf_linker_section_pointers *next; | |
2131 | /* offset of pointer from beginning of section */ | |
2132 | bfd_vma offset; | |
2133 | /* addend used */ | |
2134 | bfd_vma addend; | |
2135 | /* which linker section this is */ | |
2136 | elf_linker_section_t *lsect; | |
25dbc73a AM |
2137 | } elf_linker_section_pointers_t; |
2138 | ||
2139 | struct ppc_elf_obj_tdata | |
2140 | { | |
2141 | struct elf_obj_tdata elf; | |
2142 | ||
2143 | /* A mapping from local symbols to offsets into the various linker | |
2144 | sections added. This is index by the symbol index. */ | |
2145 | elf_linker_section_pointers_t **linker_section_pointers; | |
016687f8 AM |
2146 | |
2147 | /* Flags used to auto-detect plt type. */ | |
2148 | unsigned int makes_plt_call : 1; | |
2149 | unsigned int has_rel16 : 1; | |
25dbc73a AM |
2150 | }; |
2151 | ||
2152 | #define ppc_elf_tdata(bfd) \ | |
2153 | ((struct ppc_elf_obj_tdata *) (bfd)->tdata.any) | |
7619e7c7 | 2154 | |
25dbc73a AM |
2155 | #define elf_local_ptr_offsets(bfd) \ |
2156 | (ppc_elf_tdata (bfd)->linker_section_pointers) | |
7619e7c7 | 2157 | |
0c8d6e5c AM |
2158 | #define is_ppc_elf(bfd) \ |
2159 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
4dfe6ac6 | 2160 | && elf_object_id (bfd) == PPC32_ELF_DATA) |
0c8d6e5c | 2161 | |
25dbc73a | 2162 | /* Override the generic function because we store some extras. */ |
7619e7c7 | 2163 | |
25dbc73a AM |
2164 | static bfd_boolean |
2165 | ppc_elf_mkobject (bfd *abfd) | |
2166 | { | |
0ffa91dd | 2167 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc_elf_obj_tdata), |
4dfe6ac6 | 2168 | PPC32_ELF_DATA); |
25dbc73a | 2169 | } |
7619e7c7 | 2170 | |
25dbc73a AM |
2171 | /* Fix bad default arch selected for a 32 bit input bfd when the |
2172 | default is 64 bit. */ | |
7619e7c7 | 2173 | |
25dbc73a AM |
2174 | static bfd_boolean |
2175 | ppc_elf_object_p (bfd *abfd) | |
2176 | { | |
2177 | if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 64) | |
2178 | { | |
2179 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
7619e7c7 | 2180 | |
25dbc73a AM |
2181 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS32) |
2182 | { | |
2183 | /* Relies on arch after 64 bit default being 32 bit default. */ | |
2184 | abfd->arch_info = abfd->arch_info->next; | |
2185 | BFD_ASSERT (abfd->arch_info->bits_per_word == 32); | |
2186 | } | |
2187 | } | |
2188 | return TRUE; | |
2189 | } | |
7619e7c7 | 2190 | |
25dbc73a | 2191 | /* Function to set whether a module needs the -mrelocatable bit set. */ |
7619e7c7 | 2192 | |
25dbc73a AM |
2193 | static bfd_boolean |
2194 | ppc_elf_set_private_flags (bfd *abfd, flagword flags) | |
2195 | { | |
2196 | BFD_ASSERT (!elf_flags_init (abfd) | |
2197 | || elf_elfheader (abfd)->e_flags == flags); | |
7619e7c7 | 2198 | |
25dbc73a AM |
2199 | elf_elfheader (abfd)->e_flags = flags; |
2200 | elf_flags_init (abfd) = TRUE; | |
2201 | return TRUE; | |
2202 | } | |
2203 | ||
25dbc73a | 2204 | /* Support for core dump NOTE sections. */ |
deaaf2f3 | 2205 | |
b34976b6 | 2206 | static bfd_boolean |
25dbc73a | 2207 | ppc_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
252b5132 | 2208 | { |
25dbc73a AM |
2209 | int offset; |
2210 | unsigned int size; | |
252b5132 | 2211 | |
25dbc73a AM |
2212 | switch (note->descsz) |
2213 | { | |
2214 | default: | |
2215 | return FALSE; | |
252b5132 | 2216 | |
25dbc73a AM |
2217 | case 268: /* Linux/PPC. */ |
2218 | /* pr_cursig */ | |
228e534f | 2219 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
deaaf2f3 | 2220 | |
25dbc73a | 2221 | /* pr_pid */ |
228e534f | 2222 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
9abc968f | 2223 | |
25dbc73a AM |
2224 | /* pr_reg */ |
2225 | offset = 72; | |
2226 | size = 192; | |
deaaf2f3 | 2227 | |
25dbc73a AM |
2228 | break; |
2229 | } | |
deaaf2f3 | 2230 | |
25dbc73a AM |
2231 | /* Make a ".reg/999" section. */ |
2232 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2233 | size, note->descpos + offset); | |
2234 | } | |
252b5132 | 2235 | |
25dbc73a AM |
2236 | static bfd_boolean |
2237 | ppc_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2238 | { | |
2239 | switch (note->descsz) | |
deaaf2f3 | 2240 | { |
25dbc73a AM |
2241 | default: |
2242 | return FALSE; | |
deaaf2f3 | 2243 | |
25dbc73a | 2244 | case 128: /* Linux/PPC elf_prpsinfo. */ |
228e534f | 2245 | elf_tdata (abfd)->core->pid |
bc989cdc | 2246 | = bfd_get_32 (abfd, note->descdata + 16); |
228e534f | 2247 | elf_tdata (abfd)->core->program |
25dbc73a | 2248 | = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); |
228e534f | 2249 | elf_tdata (abfd)->core->command |
25dbc73a AM |
2250 | = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); |
2251 | } | |
9abc968f | 2252 | |
25dbc73a AM |
2253 | /* Note that for some reason, a spurious space is tacked |
2254 | onto the end of the args in some (at least one anyway) | |
2255 | implementations, so strip it off if it exists. */ | |
70bccea4 | 2256 | |
25dbc73a | 2257 | { |
228e534f | 2258 | char *command = elf_tdata (abfd)->core->command; |
25dbc73a | 2259 | int n = strlen (command); |
70bccea4 | 2260 | |
25dbc73a AM |
2261 | if (0 < n && command[n - 1] == ' ') |
2262 | command[n - 1] = '\0'; | |
2263 | } | |
deaaf2f3 | 2264 | |
25dbc73a AM |
2265 | return TRUE; |
2266 | } | |
deaaf2f3 | 2267 | |
70a38d42 SDJ |
2268 | char * |
2269 | elfcore_write_ppc_linux_prpsinfo32 (bfd *abfd, char *buf, int *bufsiz, | |
2270 | const struct elf_internal_linux_prpsinfo *prpsinfo) | |
2271 | { | |
2272 | struct elf_external_ppc_linux_prpsinfo32 data; | |
2273 | ||
2274 | memset (&data, 0, sizeof (data)); | |
2275 | PPC_LINUX_PRPSINFO32_SWAP_FIELDS (abfd, prpsinfo, data); | |
2276 | ||
2277 | return elfcore_write_note (abfd, buf, bufsiz, | |
2278 | "CORE", NT_PRPSINFO, &data, sizeof (data)); | |
2279 | } | |
2280 | ||
183e98be AM |
2281 | static char * |
2282 | ppc_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, ...) | |
2283 | { | |
2284 | switch (note_type) | |
2285 | { | |
2286 | default: | |
2287 | return NULL; | |
2288 | ||
2289 | case NT_PRPSINFO: | |
2290 | { | |
2291 | char data[128]; | |
2292 | va_list ap; | |
2293 | ||
2294 | va_start (ap, note_type); | |
75cd47ed | 2295 | memset (data, 0, sizeof (data)); |
183e98be AM |
2296 | strncpy (data + 32, va_arg (ap, const char *), 16); |
2297 | strncpy (data + 48, va_arg (ap, const char *), 80); | |
2298 | va_end (ap); | |
2299 | return elfcore_write_note (abfd, buf, bufsiz, | |
2300 | "CORE", note_type, data, sizeof (data)); | |
2301 | } | |
2302 | ||
2303 | case NT_PRSTATUS: | |
2304 | { | |
2305 | char data[268]; | |
2306 | va_list ap; | |
2307 | long pid; | |
2308 | int cursig; | |
2309 | const void *greg; | |
2310 | ||
2311 | va_start (ap, note_type); | |
2312 | memset (data, 0, 72); | |
2313 | pid = va_arg (ap, long); | |
2314 | bfd_put_32 (abfd, pid, data + 24); | |
2315 | cursig = va_arg (ap, int); | |
2316 | bfd_put_16 (abfd, cursig, data + 12); | |
2317 | greg = va_arg (ap, const void *); | |
2318 | memcpy (data + 72, greg, 192); | |
2319 | memset (data + 264, 0, 4); | |
2320 | va_end (ap); | |
2321 | return elfcore_write_note (abfd, buf, bufsiz, | |
2322 | "CORE", note_type, data, sizeof (data)); | |
2323 | } | |
2324 | } | |
2325 | } | |
2326 | ||
b9c361e0 | 2327 | static flagword |
68ffbac6 | 2328 | ppc_elf_lookup_section_flags (char *flag_name) |
b9c361e0 JL |
2329 | { |
2330 | ||
2331 | if (!strcmp (flag_name, "SHF_PPC_VLE")) | |
2332 | return SHF_PPC_VLE; | |
2333 | ||
2334 | return 0; | |
2335 | } | |
2336 | ||
2337 | /* Add the VLE flag if required. */ | |
2338 | ||
2339 | bfd_boolean | |
2340 | ppc_elf_section_processing (bfd *abfd, Elf_Internal_Shdr *shdr) | |
2341 | { | |
2342 | if (bfd_get_mach (abfd) == bfd_mach_ppc_vle | |
2343 | && (shdr->sh_flags & SHF_EXECINSTR) != 0) | |
2344 | shdr->sh_flags |= SHF_PPC_VLE; | |
2345 | ||
2346 | return TRUE; | |
2347 | } | |
2348 | ||
25dbc73a AM |
2349 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
2350 | or (bfd_vma) -1 if it should not be included. */ | |
deaaf2f3 | 2351 | |
25dbc73a AM |
2352 | static bfd_vma |
2353 | ppc_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED, | |
2354 | const asection *plt ATTRIBUTE_UNUSED, | |
2355 | const arelent *rel) | |
2356 | { | |
2357 | return rel->address; | |
2358 | } | |
deaaf2f3 | 2359 | |
25dbc73a | 2360 | /* Handle a PowerPC specific section when reading an object file. This |
6dc132d9 L |
2361 | is called when bfd_section_from_shdr finds a section with an unknown |
2362 | type. */ | |
deaaf2f3 | 2363 | |
25dbc73a | 2364 | static bfd_boolean |
6dc132d9 L |
2365 | ppc_elf_section_from_shdr (bfd *abfd, |
2366 | Elf_Internal_Shdr *hdr, | |
2367 | const char *name, | |
2368 | int shindex) | |
25dbc73a AM |
2369 | { |
2370 | asection *newsect; | |
2371 | flagword flags; | |
d1c6de6f | 2372 | |
6dc132d9 | 2373 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
25dbc73a | 2374 | return FALSE; |
deaaf2f3 | 2375 | |
25dbc73a AM |
2376 | newsect = hdr->bfd_section; |
2377 | flags = bfd_get_section_flags (abfd, newsect); | |
2378 | if (hdr->sh_flags & SHF_EXCLUDE) | |
2379 | flags |= SEC_EXCLUDE; | |
9abc968f | 2380 | |
25dbc73a AM |
2381 | if (hdr->sh_type == SHT_ORDERED) |
2382 | flags |= SEC_SORT_ENTRIES; | |
d1c6de6f | 2383 | |
25dbc73a AM |
2384 | bfd_set_section_flags (abfd, newsect, flags); |
2385 | return TRUE; | |
2386 | } | |
2387 | ||
2388 | /* Set up any other section flags and such that may be necessary. */ | |
2389 | ||
2390 | static bfd_boolean | |
2391 | ppc_elf_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, | |
2392 | Elf_Internal_Shdr *shdr, | |
2393 | asection *asect) | |
2394 | { | |
25dbc73a AM |
2395 | if ((asect->flags & SEC_SORT_ENTRIES) != 0) |
2396 | shdr->sh_type = SHT_ORDERED; | |
2397 | ||
2398 | return TRUE; | |
2399 | } | |
2400 | ||
2401 | /* If we have .sbss2 or .PPC.EMB.sbss0 output sections, we | |
2402 | need to bump up the number of section headers. */ | |
2403 | ||
2404 | static int | |
a6b96beb AM |
2405 | ppc_elf_additional_program_headers (bfd *abfd, |
2406 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
25dbc73a AM |
2407 | { |
2408 | asection *s; | |
2409 | int ret = 0; | |
d1c6de6f | 2410 | |
25dbc73a AM |
2411 | s = bfd_get_section_by_name (abfd, ".sbss2"); |
2412 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2413 | ++ret; | |
d1c6de6f | 2414 | |
25dbc73a AM |
2415 | s = bfd_get_section_by_name (abfd, ".PPC.EMB.sbss0"); |
2416 | if (s != NULL && (s->flags & SEC_ALLOC) != 0) | |
2417 | ++ret; | |
deaaf2f3 | 2418 | |
25dbc73a AM |
2419 | return ret; |
2420 | } | |
deaaf2f3 | 2421 | |
68ffbac6 | 2422 | /* Modify the segment map for VLE executables. */ |
b9c361e0 JL |
2423 | |
2424 | bfd_boolean | |
2425 | ppc_elf_modify_segment_map (bfd *abfd, | |
2426 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
2427 | { | |
2428 | struct elf_segment_map *m, *n; | |
2429 | bfd_size_type amt; | |
2430 | unsigned int j, k; | |
2431 | bfd_boolean sect0_vle, sectj_vle; | |
2432 | ||
2433 | /* At this point in the link, output sections have already been sorted by | |
2434 | LMA and assigned to segments. All that is left to do is to ensure | |
2435 | there is no mixing of VLE & non-VLE sections in a text segment. | |
2436 | If we find that case, we split the segment. | |
2437 | We maintain the original output section order. */ | |
2438 | ||
12bd6957 | 2439 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
b9c361e0 JL |
2440 | { |
2441 | if (m->count == 0) | |
2442 | continue; | |
2443 | ||
94caa966 | 2444 | sect0_vle = (elf_section_flags (m->sections[0]) & SHF_PPC_VLE) != 0; |
b9c361e0 JL |
2445 | for (j = 1; j < m->count; ++j) |
2446 | { | |
94caa966 AM |
2447 | sectj_vle = (elf_section_flags (m->sections[j]) & SHF_PPC_VLE) != 0; |
2448 | ||
2449 | if (sectj_vle != sect0_vle) | |
b9c361e0 JL |
2450 | break; |
2451 | } | |
2452 | if (j >= m->count) | |
2453 | continue; | |
2454 | ||
b9c361e0 JL |
2455 | /* sections 0..j-1 stay in this (current) segment, |
2456 | the remainder are put in a new segment. | |
2457 | The scan resumes with the new segment. */ | |
2458 | ||
2459 | /* Fix the new segment. */ | |
2460 | amt = sizeof (struct elf_segment_map); | |
2461 | amt += (m->count - j - 1) * sizeof (asection *); | |
2462 | n = (struct elf_segment_map *) bfd_zalloc (abfd, amt); | |
2463 | if (n == NULL) | |
2464 | return FALSE; | |
2465 | ||
2466 | n->p_type = PT_LOAD; | |
2467 | n->p_flags = PF_X | PF_R; | |
2468 | if (sectj_vle) | |
2469 | n->p_flags |= PF_PPC_VLE; | |
2470 | n->count = m->count - j; | |
2471 | for (k = 0; k < n->count; ++k) | |
2472 | { | |
2473 | n->sections[k] = m->sections[j+k]; | |
2474 | m->sections[j+k] = NULL; | |
2475 | } | |
2476 | n->next = m->next; | |
2477 | m->next = n; | |
2478 | ||
2479 | /* Fix the current segment */ | |
2480 | m->count = j; | |
2481 | } | |
2482 | ||
2483 | return TRUE; | |
2484 | } | |
2485 | ||
25dbc73a AM |
2486 | /* Add extra PPC sections -- Note, for now, make .sbss2 and |
2487 | .PPC.EMB.sbss0 a normal section, and not a bss section so | |
2488 | that the linker doesn't crater when trying to make more than | |
2489 | 2 sections. */ | |
e656e369 | 2490 | |
b35d266b | 2491 | static const struct bfd_elf_special_section ppc_elf_special_sections[] = |
7f4d3958 | 2492 | { |
0112cd26 NC |
2493 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, SHF_ALLOC + SHF_EXECINSTR }, |
2494 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
2495 | { STRING_COMMA_LEN (".sbss2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2496 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
2497 | { STRING_COMMA_LEN (".sdata2"), -2, SHT_PROGBITS, SHF_ALLOC }, | |
2498 | { STRING_COMMA_LEN (".tags"), 0, SHT_ORDERED, SHF_ALLOC }, | |
2499 | { STRING_COMMA_LEN (".PPC.EMB.apuinfo"), 0, SHT_NOTE, 0 }, | |
2500 | { STRING_COMMA_LEN (".PPC.EMB.sbss0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2501 | { STRING_COMMA_LEN (".PPC.EMB.sdata0"), 0, SHT_PROGBITS, SHF_ALLOC }, | |
2502 | { NULL, 0, 0, 0, 0 } | |
7f4d3958 L |
2503 | }; |
2504 | ||
551b43fd AM |
2505 | /* This is what we want for new plt/got. */ |
2506 | static struct bfd_elf_special_section ppc_alt_plt = | |
0112cd26 | 2507 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC }; |
551b43fd AM |
2508 | |
2509 | static const struct bfd_elf_special_section * | |
2510 | ppc_elf_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
7f4d3958 | 2511 | { |
b35d266b | 2512 | const struct bfd_elf_special_section *ssect; |
551b43fd AM |
2513 | |
2514 | /* See if this is one of the special sections. */ | |
2515 | if (sec->name == NULL) | |
2516 | return NULL; | |
2517 | ||
2518 | ssect = _bfd_elf_get_special_section (sec->name, ppc_elf_special_sections, | |
2519 | sec->use_rela_p); | |
2520 | if (ssect != NULL) | |
2521 | { | |
2522 | if (ssect == ppc_elf_special_sections && (sec->flags & SEC_LOAD) != 0) | |
2523 | ssect = &ppc_alt_plt; | |
2524 | return ssect; | |
2525 | } | |
2526 | ||
2527 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
2528 | } | |
25dbc73a AM |
2529 | \f |
2530 | /* Very simple linked list structure for recording apuinfo values. */ | |
2531 | typedef struct apuinfo_list | |
2532 | { | |
2533 | struct apuinfo_list *next; | |
2534 | unsigned long value; | |
2535 | } | |
2536 | apuinfo_list; | |
e656e369 | 2537 | |
25dbc73a | 2538 | static apuinfo_list *head; |
f2faa800 | 2539 | static bfd_boolean apuinfo_set; |
deaaf2f3 | 2540 | |
25dbc73a AM |
2541 | static void |
2542 | apuinfo_list_init (void) | |
2543 | { | |
2544 | head = NULL; | |
f2faa800 | 2545 | apuinfo_set = FALSE; |
25dbc73a | 2546 | } |
9abc968f | 2547 | |
25dbc73a AM |
2548 | static void |
2549 | apuinfo_list_add (unsigned long value) | |
2550 | { | |
2551 | apuinfo_list *entry = head; | |
deaaf2f3 | 2552 | |
25dbc73a AM |
2553 | while (entry != NULL) |
2554 | { | |
2555 | if (entry->value == value) | |
2556 | return; | |
2557 | entry = entry->next; | |
2558 | } | |
b4a38de6 | 2559 | |
25dbc73a AM |
2560 | entry = bfd_malloc (sizeof (* entry)); |
2561 | if (entry == NULL) | |
2562 | return; | |
e656e369 | 2563 | |
25dbc73a AM |
2564 | entry->value = value; |
2565 | entry->next = head; | |
2566 | head = entry; | |
2567 | } | |
9abc968f | 2568 | |
25dbc73a AM |
2569 | static unsigned |
2570 | apuinfo_list_length (void) | |
2571 | { | |
2572 | apuinfo_list *entry; | |
2573 | unsigned long count; | |
9abc968f | 2574 | |
25dbc73a AM |
2575 | for (entry = head, count = 0; |
2576 | entry; | |
2577 | entry = entry->next) | |
2578 | ++ count; | |
e656e369 | 2579 | |
25dbc73a AM |
2580 | return count; |
2581 | } | |
eea6121a | 2582 | |
25dbc73a AM |
2583 | static inline unsigned long |
2584 | apuinfo_list_element (unsigned long number) | |
2585 | { | |
2586 | apuinfo_list * entry; | |
e656e369 | 2587 | |
25dbc73a AM |
2588 | for (entry = head; |
2589 | entry && number --; | |
2590 | entry = entry->next) | |
2591 | ; | |
252b5132 | 2592 | |
25dbc73a AM |
2593 | return entry ? entry->value : 0; |
2594 | } | |
2595 | ||
2596 | static void | |
2597 | apuinfo_list_finish (void) | |
2598 | { | |
2599 | apuinfo_list *entry; | |
2600 | ||
2601 | for (entry = head; entry;) | |
252b5132 | 2602 | { |
25dbc73a AM |
2603 | apuinfo_list *next = entry->next; |
2604 | free (entry); | |
2605 | entry = next; | |
2606 | } | |
9abc968f | 2607 | |
25dbc73a AM |
2608 | head = NULL; |
2609 | } | |
9abc968f | 2610 | |
25dbc73a AM |
2611 | #define APUINFO_SECTION_NAME ".PPC.EMB.apuinfo" |
2612 | #define APUINFO_LABEL "APUinfo" | |
9abc968f | 2613 | |
25dbc73a AM |
2614 | /* Scan the input BFDs and create a linked list of |
2615 | the APUinfo values that will need to be emitted. */ | |
9abc968f | 2616 | |
25dbc73a AM |
2617 | static void |
2618 | ppc_elf_begin_write_processing (bfd *abfd, struct bfd_link_info *link_info) | |
2619 | { | |
2620 | bfd *ibfd; | |
2621 | asection *asec; | |
deddc40b NS |
2622 | char *buffer = NULL; |
2623 | bfd_size_type largest_input_size = 0; | |
25dbc73a | 2624 | unsigned i; |
25dbc73a AM |
2625 | unsigned long length; |
2626 | const char *error_message = NULL; | |
9abc968f | 2627 | |
25dbc73a AM |
2628 | if (link_info == NULL) |
2629 | return; | |
9abc968f | 2630 | |
25dbc73a | 2631 | apuinfo_list_init (); |
252b5132 | 2632 | |
25dbc73a AM |
2633 | /* Read in the input sections contents. */ |
2634 | for (ibfd = link_info->input_bfds; ibfd; ibfd = ibfd->link_next) | |
252b5132 | 2635 | { |
25dbc73a | 2636 | unsigned long datum; |
252b5132 | 2637 | |
25dbc73a AM |
2638 | asec = bfd_get_section_by_name (ibfd, APUINFO_SECTION_NAME); |
2639 | if (asec == NULL) | |
2640 | continue; | |
252b5132 | 2641 | |
deddc40b | 2642 | error_message = _("corrupt %s section in %B"); |
25dbc73a | 2643 | length = asec->size; |
deddc40b NS |
2644 | if (length < 20) |
2645 | goto fail; | |
2646 | ||
f2faa800 | 2647 | apuinfo_set = TRUE; |
deddc40b | 2648 | if (largest_input_size < asec->size) |
25dbc73a | 2649 | { |
deddc40b NS |
2650 | if (buffer) |
2651 | free (buffer); | |
2652 | largest_input_size = asec->size; | |
2653 | buffer = bfd_malloc (largest_input_size); | |
2654 | if (!buffer) | |
2655 | return; | |
25dbc73a | 2656 | } |
5b914448 | 2657 | |
25dbc73a | 2658 | if (bfd_seek (ibfd, asec->filepos, SEEK_SET) != 0 |
deddc40b | 2659 | || (bfd_bread (buffer, length, ibfd) != length)) |
25dbc73a AM |
2660 | { |
2661 | error_message = _("unable to read in %s section from %B"); | |
2662 | goto fail; | |
2663 | } | |
252b5132 | 2664 | |
25dbc73a AM |
2665 | /* Verify the contents of the header. Note - we have to |
2666 | extract the values this way in order to allow for a | |
2667 | host whose endian-ness is different from the target. */ | |
deddc40b | 2668 | datum = bfd_get_32 (ibfd, buffer); |
25dbc73a AM |
2669 | if (datum != sizeof APUINFO_LABEL) |
2670 | goto fail; | |
252b5132 | 2671 | |
deddc40b | 2672 | datum = bfd_get_32 (ibfd, buffer + 8); |
25dbc73a AM |
2673 | if (datum != 0x2) |
2674 | goto fail; | |
252b5132 | 2675 | |
deddc40b | 2676 | if (strcmp (buffer + 12, APUINFO_LABEL) != 0) |
25dbc73a | 2677 | goto fail; |
252b5132 | 2678 | |
25dbc73a | 2679 | /* Get the number of bytes used for apuinfo entries. */ |
deddc40b | 2680 | datum = bfd_get_32 (ibfd, buffer + 4); |
25dbc73a AM |
2681 | if (datum + 20 != length) |
2682 | goto fail; | |
2683 | ||
25dbc73a AM |
2684 | /* Scan the apuinfo section, building a list of apuinfo numbers. */ |
2685 | for (i = 0; i < datum; i += 4) | |
deddc40b | 2686 | apuinfo_list_add (bfd_get_32 (ibfd, buffer + 20 + i)); |
252b5132 RH |
2687 | } |
2688 | ||
25dbc73a | 2689 | error_message = NULL; |
252b5132 | 2690 | |
f2faa800 | 2691 | if (apuinfo_set) |
deddc40b | 2692 | { |
f2faa800 NS |
2693 | /* Compute the size of the output section. */ |
2694 | unsigned num_entries = apuinfo_list_length (); | |
5b914448 | 2695 | |
deddc40b NS |
2696 | /* Set the output section size, if it exists. */ |
2697 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); | |
f2faa800 | 2698 | |
deddc40b NS |
2699 | if (asec && ! bfd_set_section_size (abfd, asec, 20 + num_entries * 4)) |
2700 | { | |
2701 | ibfd = abfd; | |
2702 | error_message = _("warning: unable to set size of %s section in %B"); | |
2703 | } | |
2704 | } | |
25dbc73a AM |
2705 | |
2706 | fail: | |
deddc40b NS |
2707 | if (buffer) |
2708 | free (buffer); | |
25dbc73a AM |
2709 | |
2710 | if (error_message) | |
2711 | (*_bfd_error_handler) (error_message, ibfd, APUINFO_SECTION_NAME); | |
2712 | } | |
252b5132 | 2713 | |
25dbc73a AM |
2714 | /* Prevent the output section from accumulating the input sections' |
2715 | contents. We have already stored this in our linked list structure. */ | |
252b5132 | 2716 | |
25dbc73a AM |
2717 | static bfd_boolean |
2718 | ppc_elf_write_section (bfd *abfd ATTRIBUTE_UNUSED, | |
c7b8f16e | 2719 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
25dbc73a AM |
2720 | asection *asec, |
2721 | bfd_byte *contents ATTRIBUTE_UNUSED) | |
2722 | { | |
f2faa800 | 2723 | return apuinfo_set && strcmp (asec->name, APUINFO_SECTION_NAME) == 0; |
252b5132 RH |
2724 | } |
2725 | ||
25dbc73a AM |
2726 | /* Finally we can generate the output section. */ |
2727 | ||
2728 | static void | |
2729 | ppc_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
7619e7c7 | 2730 | { |
25dbc73a AM |
2731 | bfd_byte *buffer; |
2732 | asection *asec; | |
2733 | unsigned i; | |
2734 | unsigned num_entries; | |
2735 | bfd_size_type length; | |
7619e7c7 | 2736 | |
25dbc73a AM |
2737 | asec = bfd_get_section_by_name (abfd, APUINFO_SECTION_NAME); |
2738 | if (asec == NULL) | |
2739 | return; | |
2740 | ||
f2faa800 | 2741 | if (!apuinfo_set) |
25dbc73a AM |
2742 | return; |
2743 | ||
2744 | length = asec->size; | |
2745 | if (length < 20) | |
2746 | return; | |
2747 | ||
2748 | buffer = bfd_malloc (length); | |
2749 | if (buffer == NULL) | |
7619e7c7 | 2750 | { |
25dbc73a AM |
2751 | (*_bfd_error_handler) |
2752 | (_("failed to allocate space for new APUinfo section.")); | |
2753 | return; | |
7619e7c7 | 2754 | } |
7619e7c7 | 2755 | |
25dbc73a AM |
2756 | /* Create the apuinfo header. */ |
2757 | num_entries = apuinfo_list_length (); | |
2758 | bfd_put_32 (abfd, sizeof APUINFO_LABEL, buffer); | |
2759 | bfd_put_32 (abfd, num_entries * 4, buffer + 4); | |
2760 | bfd_put_32 (abfd, 0x2, buffer + 8); | |
2761 | strcpy ((char *) buffer + 12, APUINFO_LABEL); | |
feee612b | 2762 | |
25dbc73a AM |
2763 | length = 20; |
2764 | for (i = 0; i < num_entries; i++) | |
feee612b | 2765 | { |
25dbc73a AM |
2766 | bfd_put_32 (abfd, apuinfo_list_element (i), buffer + length); |
2767 | length += 4; | |
feee612b | 2768 | } |
feee612b | 2769 | |
25dbc73a AM |
2770 | if (length != asec->size) |
2771 | (*_bfd_error_handler) (_("failed to compute new APUinfo section.")); | |
252b5132 | 2772 | |
25dbc73a AM |
2773 | if (! bfd_set_section_contents (abfd, asec, buffer, (file_ptr) 0, length)) |
2774 | (*_bfd_error_handler) (_("failed to install new APUinfo section.")); | |
252b5132 | 2775 | |
25dbc73a AM |
2776 | free (buffer); |
2777 | ||
2778 | apuinfo_list_finish (); | |
252b5132 | 2779 | } |
25dbc73a | 2780 | \f |
7382d32a | 2781 | static bfd_boolean |
c6dd29ce | 2782 | is_nonpic_glink_stub (bfd *abfd, asection *glink, bfd_vma off) |
7382d32a | 2783 | { |
c6dd29ce | 2784 | bfd_byte buf[GLINK_ENTRY_SIZE]; |
7382d32a | 2785 | |
c6dd29ce | 2786 | if (!bfd_get_section_contents (abfd, glink, buf, off, GLINK_ENTRY_SIZE)) |
7382d32a AM |
2787 | return FALSE; |
2788 | ||
c6dd29ce AM |
2789 | return ((bfd_get_32 (abfd, buf + 0) & 0xffff0000) == LIS_11 |
2790 | && (bfd_get_32 (abfd, buf + 4) & 0xffff0000) == LWZ_11_11 | |
2791 | && bfd_get_32 (abfd, buf + 8) == MTCTR_11 | |
2792 | && bfd_get_32 (abfd, buf + 12) == BCTR); | |
7382d32a AM |
2793 | } |
2794 | ||
468392fb AM |
2795 | static bfd_boolean |
2796 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
2797 | { | |
2798 | bfd_vma vma = *(bfd_vma *) ptr; | |
2799 | return ((section->flags & SEC_ALLOC) != 0 | |
2800 | && section->vma <= vma | |
2801 | && vma < section->vma + section->size); | |
2802 | } | |
2803 | ||
2804 | static long | |
2805 | ppc_elf_get_synthetic_symtab (bfd *abfd, long symcount, asymbol **syms, | |
2806 | long dynsymcount, asymbol **dynsyms, | |
2807 | asymbol **ret) | |
2808 | { | |
2809 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); | |
2810 | asection *plt, *relplt, *dynamic, *glink; | |
2811 | bfd_vma glink_vma = 0; | |
2812 | bfd_vma resolv_vma = 0; | |
2813 | bfd_vma stub_vma; | |
2814 | asymbol *s; | |
2815 | arelent *p; | |
2816 | long count, i; | |
2817 | size_t size; | |
2818 | char *names; | |
2819 | bfd_byte buf[4]; | |
2820 | ||
2821 | *ret = NULL; | |
2822 | ||
2823 | if ((abfd->flags & (DYNAMIC | EXEC_P)) == 0) | |
2824 | return 0; | |
2825 | ||
2826 | if (dynsymcount <= 0) | |
2827 | return 0; | |
2828 | ||
2829 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
2830 | if (relplt == NULL) | |
2831 | return 0; | |
2832 | ||
2833 | plt = bfd_get_section_by_name (abfd, ".plt"); | |
2834 | if (plt == NULL) | |
2835 | return 0; | |
2836 | ||
2837 | /* Call common code to handle old-style executable PLTs. */ | |
2838 | if (elf_section_flags (plt) & SHF_EXECINSTR) | |
2839 | return _bfd_elf_get_synthetic_symtab (abfd, symcount, syms, | |
2840 | dynsymcount, dynsyms, ret); | |
2841 | ||
2842 | /* If this object was prelinked, the prelinker stored the address | |
2843 | of .glink at got[1]. If it wasn't prelinked, got[1] will be zero. */ | |
2844 | dynamic = bfd_get_section_by_name (abfd, ".dynamic"); | |
2845 | if (dynamic != NULL) | |
2846 | { | |
2847 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
2848 | size_t extdynsize; | |
2849 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
2850 | ||
2851 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
2852 | return -1; | |
2853 | ||
2854 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
2855 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
2856 | ||
2857 | extdyn = dynbuf; | |
2858 | extdynend = extdyn + dynamic->size; | |
2859 | for (; extdyn < extdynend; extdyn += extdynsize) | |
2860 | { | |
2861 | Elf_Internal_Dyn dyn; | |
2862 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
2863 | ||
2864 | if (dyn.d_tag == DT_NULL) | |
2865 | break; | |
2866 | ||
2867 | if (dyn.d_tag == DT_PPC_GOT) | |
2868 | { | |
2869 | unsigned int g_o_t = dyn.d_un.d_val; | |
2870 | asection *got = bfd_get_section_by_name (abfd, ".got"); | |
2871 | if (got != NULL | |
2872 | && bfd_get_section_contents (abfd, got, buf, | |
2873 | g_o_t - got->vma + 4, 4)) | |
2874 | glink_vma = bfd_get_32 (abfd, buf); | |
2875 | break; | |
2876 | } | |
2877 | } | |
2878 | free (dynbuf); | |
2879 | } | |
2880 | ||
2881 | /* Otherwise we read the first plt entry. */ | |
2882 | if (glink_vma == 0) | |
2883 | { | |
2884 | if (bfd_get_section_contents (abfd, plt, buf, 0, 4)) | |
2885 | glink_vma = bfd_get_32 (abfd, buf); | |
2886 | } | |
2887 | ||
2888 | if (glink_vma == 0) | |
2889 | return 0; | |
2890 | ||
2891 | /* The .glink section usually does not survive the final | |
2892 | link; search for the section (usually .text) where the | |
2893 | glink stubs now reside. */ | |
2894 | glink = bfd_sections_find_if (abfd, section_covers_vma, &glink_vma); | |
2895 | if (glink == NULL) | |
2896 | return 0; | |
2897 | ||
2898 | /* Determine glink PLT resolver by reading the relative branch | |
2899 | from the first glink stub. */ | |
2900 | if (bfd_get_section_contents (abfd, glink, buf, | |
2901 | glink_vma - glink->vma, 4)) | |
2902 | { | |
2903 | unsigned int insn = bfd_get_32 (abfd, buf); | |
2904 | ||
2905 | /* The first glink stub may either branch to the resolver ... */ | |
2906 | insn ^= B; | |
2907 | if ((insn & ~0x3fffffc) == 0) | |
2908 | resolv_vma = glink_vma + (insn ^ 0x2000000) - 0x2000000; | |
2909 | ||
2910 | /* ... or fall through a bunch of NOPs. */ | |
2911 | else if ((insn ^ B ^ NOP) == 0) | |
2912 | for (i = 4; | |
2913 | bfd_get_section_contents (abfd, glink, buf, | |
2914 | glink_vma - glink->vma + i, 4); | |
2915 | i += 4) | |
2916 | if (bfd_get_32 (abfd, buf) != NOP) | |
2917 | { | |
2918 | resolv_vma = glink_vma + i; | |
2919 | break; | |
2920 | } | |
2921 | } | |
2922 | ||
7382d32a AM |
2923 | count = relplt->size / sizeof (Elf32_External_Rela); |
2924 | stub_vma = glink_vma - (bfd_vma) count * 16; | |
2925 | /* If the stubs are those for -shared/-pie then we might have | |
2926 | multiple stubs for each plt entry. If that is the case then | |
2927 | there is no way to associate stubs with their plt entries short | |
2928 | of figuring out the GOT pointer value used in the stub. */ | |
c6dd29ce AM |
2929 | if (!is_nonpic_glink_stub (abfd, glink, |
2930 | glink_vma - GLINK_ENTRY_SIZE - glink->vma)) | |
7382d32a AM |
2931 | return 0; |
2932 | ||
468392fb AM |
2933 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
2934 | if (! (*slurp_relocs) (abfd, relplt, dynsyms, TRUE)) | |
2935 | return -1; | |
2936 | ||
468392fb AM |
2937 | size = count * sizeof (asymbol); |
2938 | p = relplt->relocation; | |
2939 | for (i = 0; i < count; i++, p++) | |
e054468f AM |
2940 | { |
2941 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
2942 | if (p->addend != 0) | |
2943 | size += sizeof ("+0x") - 1 + 8; | |
2944 | } | |
468392fb AM |
2945 | |
2946 | size += sizeof (asymbol) + sizeof ("__glink"); | |
2947 | ||
2948 | if (resolv_vma) | |
2949 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
2950 | ||
2951 | s = *ret = bfd_malloc (size); | |
2952 | if (s == NULL) | |
2953 | return -1; | |
2954 | ||
2955 | names = (char *) (s + count + 1 + (resolv_vma != 0)); | |
2956 | p = relplt->relocation; | |
2957 | for (i = 0; i < count; i++, p++) | |
2958 | { | |
2959 | size_t len; | |
2960 | ||
2961 | *s = **p->sym_ptr_ptr; | |
2962 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
2963 | we are defining a symbol, ensure one of them is set. */ | |
2964 | if ((s->flags & BSF_LOCAL) == 0) | |
2965 | s->flags |= BSF_GLOBAL; | |
6ba2a415 | 2966 | s->flags |= BSF_SYNTHETIC; |
468392fb AM |
2967 | s->section = glink; |
2968 | s->value = stub_vma - glink->vma; | |
2969 | s->name = names; | |
2970 | s->udata.p = NULL; | |
2971 | len = strlen ((*p->sym_ptr_ptr)->name); | |
2972 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
2973 | names += len; | |
e054468f AM |
2974 | if (p->addend != 0) |
2975 | { | |
2976 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
2977 | names += sizeof ("+0x") - 1; | |
2978 | bfd_sprintf_vma (abfd, names, p->addend); | |
2979 | names += strlen (names); | |
2980 | } | |
468392fb AM |
2981 | memcpy (names, "@plt", sizeof ("@plt")); |
2982 | names += sizeof ("@plt"); | |
2983 | ++s; | |
2984 | stub_vma += 16; | |
2985 | } | |
2986 | ||
2987 | /* Add a symbol at the start of the glink branch table. */ | |
86a4952b | 2988 | memset (s, 0, sizeof *s); |
468392fb | 2989 | s->the_bfd = abfd; |
6ba2a415 | 2990 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
2991 | s->section = glink; |
2992 | s->value = glink_vma - glink->vma; | |
2993 | s->name = names; | |
2994 | memcpy (names, "__glink", sizeof ("__glink")); | |
2995 | names += sizeof ("__glink"); | |
2996 | s++; | |
2997 | count++; | |
2998 | ||
2999 | if (resolv_vma) | |
3000 | { | |
3001 | /* Add a symbol for the glink PLT resolver. */ | |
86a4952b | 3002 | memset (s, 0, sizeof *s); |
468392fb | 3003 | s->the_bfd = abfd; |
6ba2a415 | 3004 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
468392fb AM |
3005 | s->section = glink; |
3006 | s->value = resolv_vma - glink->vma; | |
3007 | s->name = names; | |
3008 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
3009 | names += sizeof ("__glink_PLTresolve"); | |
3010 | s++; | |
3011 | count++; | |
3012 | } | |
3013 | ||
3014 | return count; | |
3015 | } | |
3016 | \f | |
25dbc73a AM |
3017 | /* The following functions are specific to the ELF linker, while |
3018 | functions above are used generally. They appear in this file more | |
3019 | or less in the order in which they are called. eg. | |
3020 | ppc_elf_check_relocs is called early in the link process, | |
3021 | ppc_elf_finish_dynamic_sections is one of the last functions | |
3022 | called. */ | |
252b5132 | 3023 | |
a6aa5195 | 3024 | /* Track PLT entries needed for a given symbol. We might need more |
a877a2b6 | 3025 | than one glink entry per symbol when generating a pic binary. */ |
a6aa5195 AM |
3026 | struct plt_entry |
3027 | { | |
3028 | struct plt_entry *next; | |
3029 | ||
3030 | /* -fPIC uses multiple GOT sections, one per file, called ".got2". | |
3031 | This field stores the offset into .got2 used to initialise the | |
a877a2b6 AM |
3032 | GOT pointer reg. It will always be at least 32768. (Current |
3033 | gcc always uses an offset of 32768, but ld -r will pack .got2 | |
3034 | sections together resulting in larger offsets). */ | |
a6aa5195 AM |
3035 | bfd_vma addend; |
3036 | ||
3037 | /* The .got2 section. */ | |
3038 | asection *sec; | |
3039 | ||
3040 | /* PLT refcount or offset. */ | |
3041 | union | |
3042 | { | |
3043 | bfd_signed_vma refcount; | |
3044 | bfd_vma offset; | |
3045 | } plt; | |
3046 | ||
3047 | /* .glink stub offset. */ | |
3048 | bfd_vma glink_offset; | |
3049 | }; | |
3050 | ||
1d483afe | 3051 | /* Of those relocs that might be copied as dynamic relocs, this function |
25dbc73a AM |
3052 | selects those that must be copied when linking a shared library, |
3053 | even when the symbol is local. */ | |
252b5132 | 3054 | |
1d483afe AM |
3055 | static int |
3056 | must_be_dyn_reloc (struct bfd_link_info *info, | |
3057 | enum elf_ppc_reloc_type r_type) | |
3058 | { | |
3059 | switch (r_type) | |
3060 | { | |
3061 | default: | |
3062 | return 1; | |
3063 | ||
3064 | case R_PPC_REL24: | |
3065 | case R_PPC_REL14: | |
3066 | case R_PPC_REL14_BRTAKEN: | |
3067 | case R_PPC_REL14_BRNTAKEN: | |
3068 | case R_PPC_REL32: | |
3069 | return 0; | |
3070 | ||
3071 | case R_PPC_TPREL32: | |
3072 | case R_PPC_TPREL16: | |
3073 | case R_PPC_TPREL16_LO: | |
3074 | case R_PPC_TPREL16_HI: | |
3075 | case R_PPC_TPREL16_HA: | |
3076 | return !info->executable; | |
3077 | } | |
3078 | } | |
252b5132 | 3079 | |
25dbc73a AM |
3080 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
3081 | copying dynamic variables from a shared lib into an app's dynbss | |
3082 | section, and instead use a dynamic relocation to point into the | |
3083 | shared lib. */ | |
3084 | #define ELIMINATE_COPY_RELOCS 1 | |
252b5132 | 3085 | |
f95f8542 AM |
3086 | /* Used to track dynamic relocations for local symbols. */ |
3087 | struct ppc_dyn_relocs | |
3088 | { | |
3089 | struct ppc_dyn_relocs *next; | |
3090 | ||
3091 | /* The input section of the reloc. */ | |
3092 | asection *sec; | |
3093 | ||
3094 | /* Total number of relocs copied for the input section. */ | |
3095 | unsigned int count : 31; | |
3096 | ||
3097 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
3098 | unsigned int ifunc : 1; | |
3099 | }; | |
3100 | ||
25dbc73a | 3101 | /* PPC ELF linker hash entry. */ |
252b5132 | 3102 | |
25dbc73a AM |
3103 | struct ppc_elf_link_hash_entry |
3104 | { | |
3105 | struct elf_link_hash_entry elf; | |
252b5132 | 3106 | |
25dbc73a AM |
3107 | /* If this symbol is used in the linker created sections, the processor |
3108 | specific backend uses this field to map the field into the offset | |
3109 | from the beginning of the section. */ | |
3110 | elf_linker_section_pointers_t *linker_section_pointer; | |
252b5132 | 3111 | |
25dbc73a | 3112 | /* Track dynamic relocs copied for this symbol. */ |
6061a67d | 3113 | struct elf_dyn_relocs *dyn_relocs; |
252b5132 | 3114 | |
25dbc73a AM |
3115 | /* Contexts in which symbol is used in the GOT (or TOC). |
3116 | TLS_GD .. TLS_TLS bits are or'd into the mask as the | |
3117 | corresponding relocs are encountered during check_relocs. | |
3118 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
3119 | indicate the corresponding GOT entry type is not needed. */ | |
3120 | #define TLS_GD 1 /* GD reloc. */ | |
3121 | #define TLS_LD 2 /* LD reloc. */ | |
3122 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
3123 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
3124 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
3125 | #define TLS_TPRELGD 32 /* TPREL reloc resulting from GD->IE. */ | |
e054468f | 3126 | #define PLT_IFUNC 64 /* STT_GNU_IFUNC. */ |
25dbc73a | 3127 | char tls_mask; |
4dc4a9a5 DJ |
3128 | |
3129 | /* Nonzero if we have seen a small data relocation referring to this | |
3130 | symbol. */ | |
3131 | unsigned char has_sda_refs; | |
25dbc73a | 3132 | }; |
252b5132 | 3133 | |
25dbc73a AM |
3134 | #define ppc_elf_hash_entry(ent) ((struct ppc_elf_link_hash_entry *) (ent)) |
3135 | ||
3136 | /* PPC ELF linker hash table. */ | |
3137 | ||
3138 | struct ppc_elf_link_hash_table | |
3139 | { | |
3140 | struct elf_link_hash_table elf; | |
3141 | ||
3142 | /* Short-cuts to get to dynamic linker sections. */ | |
3143 | asection *got; | |
3144 | asection *relgot; | |
d7128ce4 | 3145 | asection *glink; |
25dbc73a AM |
3146 | asection *plt; |
3147 | asection *relplt; | |
e054468f AM |
3148 | asection *iplt; |
3149 | asection *reliplt; | |
25dbc73a AM |
3150 | asection *dynbss; |
3151 | asection *relbss; | |
3152 | asection *dynsbss; | |
3153 | asection *relsbss; | |
c9a2f333 | 3154 | elf_linker_section_t sdata[2]; |
25dbc73a | 3155 | asection *sbss; |
6177242a | 3156 | asection *glink_eh_frame; |
25dbc73a | 3157 | |
016687f8 AM |
3158 | /* The (unloaded but important) .rela.plt.unloaded on VxWorks. */ |
3159 | asection *srelplt2; | |
3160 | ||
3161 | /* The .got.plt section (VxWorks only)*/ | |
3162 | asection *sgotplt; | |
3163 | ||
1d483afe | 3164 | /* Shortcut to __tls_get_addr. */ |
25dbc73a | 3165 | struct elf_link_hash_entry *tls_get_addr; |
252b5132 | 3166 | |
016687f8 AM |
3167 | /* The bfd that forced an old-style PLT. */ |
3168 | bfd *old_bfd; | |
5b914448 | 3169 | |
25dbc73a AM |
3170 | /* TLS local dynamic got entry handling. */ |
3171 | union { | |
3172 | bfd_signed_vma refcount; | |
3173 | bfd_vma offset; | |
3174 | } tlsld_got; | |
252b5132 | 3175 | |
c6dd29ce | 3176 | /* Offset of branch table to PltResolve function in glink. */ |
d7128ce4 AM |
3177 | bfd_vma glink_pltresolve; |
3178 | ||
3b36f7e6 AM |
3179 | /* Size of reserved GOT entries. */ |
3180 | unsigned int got_header_size; | |
3181 | /* Non-zero if allocating the header left a gap. */ | |
3182 | unsigned int got_gap; | |
3183 | ||
4a3dc543 RS |
3184 | /* The type of PLT we have chosen to use. */ |
3185 | enum ppc_elf_plt_type plt_type; | |
3186 | ||
0ba07910 AM |
3187 | /* Set if we should emit symbols for stubs. */ |
3188 | unsigned int emit_stub_syms:1; | |
3189 | ||
a7f2871e AM |
3190 | /* Set if __tls_get_addr optimization should not be done. */ |
3191 | unsigned int no_tls_get_addr_opt:1; | |
3192 | ||
9d8504b1 | 3193 | /* True if the target system is VxWorks. */ |
016687f8 | 3194 | unsigned int is_vxworks:1; |
9d8504b1 PB |
3195 | |
3196 | /* The size of PLT entries. */ | |
3197 | int plt_entry_size; | |
3198 | /* The distance between adjacent PLT slots. */ | |
3199 | int plt_slot_size; | |
3200 | /* The size of the first PLT entry. */ | |
3201 | int plt_initial_entry_size; | |
016687f8 | 3202 | |
87d72d41 AM |
3203 | /* Small local sym cache. */ |
3204 | struct sym_cache sym_cache; | |
25dbc73a | 3205 | }; |
252b5132 | 3206 | |
94caa966 AM |
3207 | /* Rename some of the generic section flags to better document how they |
3208 | are used for ppc32. The flags are only valid for ppc32 elf objects. */ | |
3209 | ||
3210 | /* Nonzero if this section has TLS related relocations. */ | |
3211 | #define has_tls_reloc sec_flg0 | |
3212 | ||
3213 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
3214 | #define has_tls_get_addr_call sec_flg1 | |
3215 | ||
25dbc73a | 3216 | /* Get the PPC ELF linker hash table from a link_info structure. */ |
252b5132 | 3217 | |
25dbc73a | 3218 | #define ppc_elf_hash_table(p) \ |
4dfe6ac6 NC |
3219 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
3220 | == PPC32_ELF_DATA ? ((struct ppc_elf_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 3221 | |
25dbc73a | 3222 | /* Create an entry in a PPC ELF linker hash table. */ |
252b5132 | 3223 | |
25dbc73a AM |
3224 | static struct bfd_hash_entry * |
3225 | ppc_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
3226 | struct bfd_hash_table *table, | |
3227 | const char *string) | |
252b5132 | 3228 | { |
25dbc73a AM |
3229 | /* Allocate the structure if it has not already been allocated by a |
3230 | subclass. */ | |
3231 | if (entry == NULL) | |
3232 | { | |
3233 | entry = bfd_hash_allocate (table, | |
3234 | sizeof (struct ppc_elf_link_hash_entry)); | |
3235 | if (entry == NULL) | |
3236 | return entry; | |
3237 | } | |
252b5132 | 3238 | |
25dbc73a AM |
3239 | /* Call the allocation method of the superclass. */ |
3240 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
3241 | if (entry != NULL) | |
3242 | { | |
3243 | ppc_elf_hash_entry (entry)->linker_section_pointer = NULL; | |
3244 | ppc_elf_hash_entry (entry)->dyn_relocs = NULL; | |
3245 | ppc_elf_hash_entry (entry)->tls_mask = 0; | |
5240d94d | 3246 | ppc_elf_hash_entry (entry)->has_sda_refs = 0; |
25dbc73a | 3247 | } |
252b5132 | 3248 | |
25dbc73a | 3249 | return entry; |
252b5132 | 3250 | } |
3dab13f6 | 3251 | |
25dbc73a | 3252 | /* Create a PPC ELF linker hash table. */ |
3dab13f6 | 3253 | |
25dbc73a AM |
3254 | static struct bfd_link_hash_table * |
3255 | ppc_elf_link_hash_table_create (bfd *abfd) | |
3dab13f6 | 3256 | { |
25dbc73a | 3257 | struct ppc_elf_link_hash_table *ret; |
3dab13f6 | 3258 | |
25dbc73a AM |
3259 | ret = bfd_zmalloc (sizeof (struct ppc_elf_link_hash_table)); |
3260 | if (ret == NULL) | |
3261 | return NULL; | |
3dab13f6 | 3262 | |
66eb6687 AM |
3263 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, |
3264 | ppc_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
3265 | sizeof (struct ppc_elf_link_hash_entry), |
3266 | PPC32_ELF_DATA)) | |
3dab13f6 | 3267 | { |
25dbc73a AM |
3268 | free (ret); |
3269 | return NULL; | |
3270 | } | |
58111eb7 | 3271 | |
a6aa5195 AM |
3272 | ret->elf.init_plt_refcount.refcount = 0; |
3273 | ret->elf.init_plt_refcount.glist = NULL; | |
3274 | ret->elf.init_plt_offset.offset = 0; | |
3275 | ret->elf.init_plt_offset.glist = NULL; | |
3276 | ||
c9a2f333 AM |
3277 | ret->sdata[0].name = ".sdata"; |
3278 | ret->sdata[0].sym_name = "_SDA_BASE_"; | |
3279 | ret->sdata[0].bss_name = ".sbss"; | |
3280 | ||
3281 | ret->sdata[1].name = ".sdata2"; | |
3282 | ret->sdata[1].sym_name = "_SDA2_BASE_"; | |
3283 | ret->sdata[1].bss_name = ".sbss2"; | |
3284 | ||
9d8504b1 PB |
3285 | ret->plt_entry_size = 12; |
3286 | ret->plt_slot_size = 8; | |
3287 | ret->plt_initial_entry_size = 72; | |
9d8504b1 | 3288 | |
25dbc73a AM |
3289 | return &ret->elf.root; |
3290 | } | |
3dab13f6 | 3291 | |
9d8504b1 | 3292 | /* Create .got and the related sections. */ |
3dab13f6 | 3293 | |
25dbc73a AM |
3294 | static bfd_boolean |
3295 | ppc_elf_create_got (bfd *abfd, struct bfd_link_info *info) | |
3296 | { | |
3297 | struct ppc_elf_link_hash_table *htab; | |
3298 | asection *s; | |
3299 | flagword flags; | |
3dab13f6 | 3300 | |
25dbc73a AM |
3301 | if (!_bfd_elf_create_got_section (abfd, info)) |
3302 | return FALSE; | |
3dab13f6 | 3303 | |
25dbc73a | 3304 | htab = ppc_elf_hash_table (info); |
3d4d4302 | 3305 | htab->got = s = bfd_get_linker_section (abfd, ".got"); |
25dbc73a AM |
3306 | if (s == NULL) |
3307 | abort (); | |
3dab13f6 | 3308 | |
9d8504b1 PB |
3309 | if (htab->is_vxworks) |
3310 | { | |
3d4d4302 | 3311 | htab->sgotplt = bfd_get_linker_section (abfd, ".got.plt"); |
9d8504b1 PB |
3312 | if (!htab->sgotplt) |
3313 | abort (); | |
3314 | } | |
3315 | else | |
3316 | { | |
3317 | /* The powerpc .got has a blrl instruction in it. Mark it | |
3318 | executable. */ | |
3319 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | |
3320 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3321 | if (!bfd_set_section_flags (abfd, s, flags)) | |
3322 | return FALSE; | |
3323 | } | |
3dab13f6 | 3324 | |
3d4d4302 | 3325 | htab->relgot = bfd_get_linker_section (abfd, ".rela.got"); |
64e77c6d L |
3326 | if (!htab->relgot) |
3327 | abort (); | |
3dab13f6 | 3328 | |
25dbc73a AM |
3329 | return TRUE; |
3330 | } | |
3dab13f6 | 3331 | |
e054468f AM |
3332 | static bfd_boolean |
3333 | ppc_elf_create_glink (bfd *abfd, struct bfd_link_info *info) | |
3334 | { | |
3335 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
3336 | asection *s; | |
3337 | flagword flags; | |
3338 | ||
3339 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY | SEC_HAS_CONTENTS | |
3340 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3341 | s = bfd_make_section_anyway_with_flags (abfd, ".glink", flags); | |
3342 | htab->glink = s; | |
3343 | if (s == NULL | |
3344 | || !bfd_set_section_alignment (abfd, s, 4)) | |
3345 | return FALSE; | |
3346 | ||
6177242a AM |
3347 | if (!info->no_ld_generated_unwind_info) |
3348 | { | |
3349 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3350 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
3351 | s = bfd_make_section_anyway_with_flags (abfd, ".eh_frame", flags); | |
3352 | htab->glink_eh_frame = s; | |
3353 | if (s == NULL | |
3354 | || !bfd_set_section_alignment (abfd, s, 2)) | |
3355 | return FALSE; | |
3356 | } | |
3357 | ||
e054468f AM |
3358 | flags = SEC_ALLOC | SEC_LINKER_CREATED; |
3359 | s = bfd_make_section_anyway_with_flags (abfd, ".iplt", flags); | |
3360 | htab->iplt = s; | |
3361 | if (s == NULL | |
3362 | || !bfd_set_section_alignment (abfd, s, 4)) | |
3363 | return FALSE; | |
3364 | ||
3365 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
3366 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3367 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.iplt", flags); |
e054468f AM |
3368 | htab->reliplt = s; |
3369 | if (s == NULL | |
3370 | || ! bfd_set_section_alignment (abfd, s, 2)) | |
3371 | return FALSE; | |
3372 | return TRUE; | |
3373 | } | |
3374 | ||
25dbc73a AM |
3375 | /* We have to create .dynsbss and .rela.sbss here so that they get mapped |
3376 | to output sections (just like _bfd_elf_create_dynamic_sections has | |
3377 | to create .dynbss and .rela.bss). */ | |
3dab13f6 | 3378 | |
25dbc73a AM |
3379 | static bfd_boolean |
3380 | ppc_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
3381 | { | |
3382 | struct ppc_elf_link_hash_table *htab; | |
3383 | asection *s; | |
3384 | flagword flags; | |
3dab13f6 | 3385 | |
25dbc73a | 3386 | htab = ppc_elf_hash_table (info); |
3dab13f6 | 3387 | |
25dbc73a AM |
3388 | if (htab->got == NULL |
3389 | && !ppc_elf_create_got (abfd, info)) | |
3dab13f6 AM |
3390 | return FALSE; |
3391 | ||
25dbc73a AM |
3392 | if (!_bfd_elf_create_dynamic_sections (abfd, info)) |
3393 | return FALSE; | |
3dab13f6 | 3394 | |
e054468f AM |
3395 | if (htab->glink == NULL |
3396 | && !ppc_elf_create_glink (abfd, info)) | |
d7128ce4 | 3397 | return FALSE; |
3dab13f6 | 3398 | |
3d4d4302 | 3399 | htab->dynbss = bfd_get_linker_section (abfd, ".dynbss"); |
14b2f831 AM |
3400 | s = bfd_make_section_anyway_with_flags (abfd, ".dynsbss", |
3401 | SEC_ALLOC | SEC_LINKER_CREATED); | |
3b36f7e6 | 3402 | htab->dynsbss = s; |
3496cb2a | 3403 | if (s == NULL) |
25dbc73a | 3404 | return FALSE; |
3dab13f6 | 3405 | |
25dbc73a AM |
3406 | if (! info->shared) |
3407 | { | |
3d4d4302 | 3408 | htab->relbss = bfd_get_linker_section (abfd, ".rela.bss"); |
e054468f AM |
3409 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS |
3410 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
14b2f831 | 3411 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.sbss", flags); |
3b36f7e6 | 3412 | htab->relsbss = s; |
25dbc73a | 3413 | if (s == NULL |
25dbc73a AM |
3414 | || ! bfd_set_section_alignment (abfd, s, 2)) |
3415 | return FALSE; | |
3416 | } | |
3dab13f6 | 3417 | |
711de32c RS |
3418 | if (htab->is_vxworks |
3419 | && !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
3420 | return FALSE; | |
9d8504b1 | 3421 | |
3d4d4302 AM |
3422 | htab->relplt = bfd_get_linker_section (abfd, ".rela.plt"); |
3423 | htab->plt = s = bfd_get_linker_section (abfd, ".plt"); | |
25dbc73a AM |
3424 | if (s == NULL) |
3425 | abort (); | |
3dab13f6 | 3426 | |
3b36f7e6 | 3427 | flags = SEC_ALLOC | SEC_CODE | SEC_LINKER_CREATED; |
4a3dc543 RS |
3428 | if (htab->plt_type == PLT_VXWORKS) |
3429 | /* The VxWorks PLT is a loaded section with contents. */ | |
3430 | flags |= SEC_HAS_CONTENTS | SEC_LOAD | SEC_READONLY; | |
25dbc73a AM |
3431 | return bfd_set_section_flags (abfd, s, flags); |
3432 | } | |
3dab13f6 | 3433 | |
25dbc73a | 3434 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
58111eb7 | 3435 | |
25dbc73a | 3436 | static void |
fcfa13d2 | 3437 | ppc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
25dbc73a AM |
3438 | struct elf_link_hash_entry *dir, |
3439 | struct elf_link_hash_entry *ind) | |
3440 | { | |
3441 | struct ppc_elf_link_hash_entry *edir, *eind; | |
3dab13f6 | 3442 | |
25dbc73a AM |
3443 | edir = (struct ppc_elf_link_hash_entry *) dir; |
3444 | eind = (struct ppc_elf_link_hash_entry *) ind; | |
3dab13f6 | 3445 | |
c79d6685 AM |
3446 | edir->tls_mask |= eind->tls_mask; |
3447 | edir->has_sda_refs |= eind->has_sda_refs; | |
3448 | ||
3449 | /* If called to transfer flags for a weakdef during processing | |
3450 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
3451 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
3452 | if (!(ELIMINATE_COPY_RELOCS | |
3453 | && eind->elf.root.type != bfd_link_hash_indirect | |
3454 | && edir->elf.dynamic_adjusted)) | |
3455 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
3456 | ||
3457 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
3458 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
3459 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
3460 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
3461 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
3462 | ||
25dbc73a AM |
3463 | if (eind->dyn_relocs != NULL) |
3464 | { | |
3465 | if (edir->dyn_relocs != NULL) | |
3dab13f6 | 3466 | { |
6061a67d AM |
3467 | struct elf_dyn_relocs **pp; |
3468 | struct elf_dyn_relocs *p; | |
3dab13f6 | 3469 | |
fcfa13d2 | 3470 | /* Add reloc counts against the indirect sym to the direct sym |
25dbc73a AM |
3471 | list. Merge any entries against the same section. */ |
3472 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
3dab13f6 | 3473 | { |
6061a67d | 3474 | struct elf_dyn_relocs *q; |
25dbc73a AM |
3475 | |
3476 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
3477 | if (q->sec == p->sec) | |
3478 | { | |
3479 | q->pc_count += p->pc_count; | |
3480 | q->count += p->count; | |
3481 | *pp = p->next; | |
3482 | break; | |
3483 | } | |
3484 | if (q == NULL) | |
3485 | pp = &p->next; | |
3dab13f6 | 3486 | } |
25dbc73a | 3487 | *pp = edir->dyn_relocs; |
3dab13f6 | 3488 | } |
25dbc73a AM |
3489 | |
3490 | edir->dyn_relocs = eind->dyn_relocs; | |
3491 | eind->dyn_relocs = NULL; | |
3dab13f6 | 3492 | } |
3dab13f6 | 3493 | |
68ba6d40 AM |
3494 | /* If we were called to copy over info for a weak sym, that's all. |
3495 | You might think dyn_relocs need not be copied over; After all, | |
3496 | both syms will be dynamic or both non-dynamic so we're just | |
68ffbac6 | 3497 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
68ba6d40 AM |
3498 | code in ppc_elf_adjust_dynamic_symbol needs to check for |
3499 | dyn_relocs in read-only sections, and it does so on what is the | |
3500 | DIR sym here. */ | |
3501 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
3502 | return; | |
3503 | ||
a6aa5195 AM |
3504 | /* Copy over the GOT refcount entries that we may have already seen to |
3505 | the symbol which just became indirect. */ | |
fcfa13d2 AM |
3506 | edir->elf.got.refcount += eind->elf.got.refcount; |
3507 | eind->elf.got.refcount = 0; | |
a6aa5195 AM |
3508 | |
3509 | /* And plt entries. */ | |
3510 | if (eind->elf.plt.plist != NULL) | |
3511 | { | |
3512 | if (edir->elf.plt.plist != NULL) | |
3513 | { | |
3514 | struct plt_entry **entp; | |
3515 | struct plt_entry *ent; | |
3516 | ||
3517 | for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; ) | |
3518 | { | |
3519 | struct plt_entry *dent; | |
3520 | ||
3521 | for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next) | |
3522 | if (dent->sec == ent->sec && dent->addend == ent->addend) | |
3523 | { | |
3524 | dent->plt.refcount += ent->plt.refcount; | |
3525 | *entp = ent->next; | |
3526 | break; | |
3527 | } | |
3528 | if (dent == NULL) | |
3529 | entp = &ent->next; | |
3530 | } | |
3531 | *entp = edir->elf.plt.plist; | |
3532 | } | |
3533 | ||
3534 | edir->elf.plt.plist = eind->elf.plt.plist; | |
3535 | eind->elf.plt.plist = NULL; | |
3536 | } | |
3537 | ||
fcfa13d2 | 3538 | if (eind->elf.dynindx != -1) |
25dbc73a | 3539 | { |
fcfa13d2 AM |
3540 | if (edir->elf.dynindx != -1) |
3541 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
3542 | edir->elf.dynstr_index); | |
a6aa5195 AM |
3543 | edir->elf.dynindx = eind->elf.dynindx; |
3544 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
3545 | eind->elf.dynindx = -1; | |
3546 | eind->elf.dynstr_index = 0; | |
25dbc73a | 3547 | } |
25dbc73a | 3548 | } |
3dab13f6 | 3549 | |
25dbc73a AM |
3550 | /* Hook called by the linker routine which adds symbols from an object |
3551 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
58111eb7 | 3552 | |
25dbc73a AM |
3553 | static bfd_boolean |
3554 | ppc_elf_add_symbol_hook (bfd *abfd, | |
3555 | struct bfd_link_info *info, | |
3556 | Elf_Internal_Sym *sym, | |
3557 | const char **namep ATTRIBUTE_UNUSED, | |
3558 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3559 | asection **secp, | |
3560 | bfd_vma *valp) | |
3561 | { | |
3562 | if (sym->st_shndx == SHN_COMMON | |
3563 | && !info->relocatable | |
0c8d6e5c AM |
3564 | && is_ppc_elf (info->output_bfd) |
3565 | && sym->st_size <= elf_gp_size (abfd)) | |
25dbc73a AM |
3566 | { |
3567 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3568 | put into .sbss. */ | |
3569 | struct ppc_elf_link_hash_table *htab; | |
3dab13f6 | 3570 | |
25dbc73a AM |
3571 | htab = ppc_elf_hash_table (info); |
3572 | if (htab->sbss == NULL) | |
3573 | { | |
644285ef | 3574 | flagword flags = SEC_IS_COMMON | SEC_LINKER_CREATED; |
3dab13f6 | 3575 | |
644285ef AM |
3576 | if (!htab->elf.dynobj) |
3577 | htab->elf.dynobj = abfd; | |
3578 | ||
3496cb2a L |
3579 | htab->sbss = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3580 | ".sbss", | |
3581 | flags); | |
3582 | if (htab->sbss == NULL) | |
25dbc73a | 3583 | return FALSE; |
3dab13f6 | 3584 | } |
3dab13f6 | 3585 | |
25dbc73a AM |
3586 | *secp = htab->sbss; |
3587 | *valp = sym->st_size; | |
3588 | } | |
3dab13f6 | 3589 | |
c16153ae | 3590 | if ((abfd->flags & DYNAMIC) == 0 |
f64b2e8d NC |
3591 | && (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC |
3592 | || ELF_ST_BIND (sym->st_info) == STB_GNU_UNIQUE)) | |
3593 | elf_tdata (info->output_bfd)->has_gnu_symbols = TRUE; | |
e054468f | 3594 | |
25dbc73a | 3595 | return TRUE; |
3dab13f6 AM |
3596 | } |
3597 | \f | |
046183de | 3598 | static bfd_boolean |
bd6c6e2b | 3599 | create_sdata_sym (struct bfd_link_info *info, elf_linker_section_t *lsect) |
046183de | 3600 | { |
bd6c6e2b AM |
3601 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
3602 | ||
046183de AM |
3603 | lsect->sym = elf_link_hash_lookup (&htab->elf, lsect->sym_name, |
3604 | TRUE, FALSE, TRUE); | |
3605 | if (lsect->sym == NULL) | |
3606 | return FALSE; | |
3607 | if (lsect->sym->root.type == bfd_link_hash_new) | |
3608 | lsect->sym->non_elf = 0; | |
3609 | lsect->sym->ref_regular = 1; | |
bd6c6e2b | 3610 | _bfd_elf_link_hash_hide_symbol (info, lsect->sym, TRUE); |
046183de AM |
3611 | return TRUE; |
3612 | } | |
3613 | ||
c9a2f333 | 3614 | /* Create a special linker section. */ |
25dbc73a | 3615 | |
c9a2f333 | 3616 | static bfd_boolean |
55fd94b0 AM |
3617 | ppc_elf_create_linker_section (bfd *abfd, |
3618 | struct bfd_link_info *info, | |
c9a2f333 AM |
3619 | flagword flags, |
3620 | elf_linker_section_t *lsect) | |
252b5132 | 3621 | { |
58111eb7 | 3622 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
c9a2f333 | 3623 | asection *s; |
58111eb7 | 3624 | |
c9a2f333 AM |
3625 | flags |= (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY |
3626 | | SEC_LINKER_CREATED); | |
58111eb7 AM |
3627 | |
3628 | /* Record the first bfd that needs the special sections. */ | |
3629 | if (!htab->elf.dynobj) | |
3630 | htab->elf.dynobj = abfd; | |
3631 | ||
3496cb2a L |
3632 | s = bfd_make_section_anyway_with_flags (htab->elf.dynobj, |
3633 | lsect->name, | |
3634 | flags); | |
76750a2f | 3635 | if (s == NULL |
76750a2f | 3636 | || !bfd_set_section_alignment (htab->elf.dynobj, s, 2)) |
c9a2f333 | 3637 | return FALSE; |
76750a2f | 3638 | lsect->section = s; |
58111eb7 | 3639 | |
bd6c6e2b | 3640 | return create_sdata_sym (info, lsect); |
252b5132 | 3641 | } |
252b5132 | 3642 | |
25dbc73a AM |
3643 | /* Find a linker generated pointer with a given addend and type. */ |
3644 | ||
3645 | static elf_linker_section_pointers_t * | |
3646 | elf_find_pointer_linker_section | |
3647 | (elf_linker_section_pointers_t *linker_pointers, | |
3648 | bfd_vma addend, | |
3649 | elf_linker_section_t *lsect) | |
252b5132 | 3650 | { |
25dbc73a AM |
3651 | for ( ; linker_pointers != NULL; linker_pointers = linker_pointers->next) |
3652 | if (lsect == linker_pointers->lsect && addend == linker_pointers->addend) | |
3653 | return linker_pointers; | |
252b5132 | 3654 | |
25dbc73a AM |
3655 | return NULL; |
3656 | } | |
3657 | ||
3658 | /* Allocate a pointer to live in a linker created section. */ | |
3659 | ||
3660 | static bfd_boolean | |
3661 | elf_create_pointer_linker_section (bfd *abfd, | |
25dbc73a AM |
3662 | elf_linker_section_t *lsect, |
3663 | struct elf_link_hash_entry *h, | |
3664 | const Elf_Internal_Rela *rel) | |
3665 | { | |
3666 | elf_linker_section_pointers_t **ptr_linker_section_ptr = NULL; | |
3667 | elf_linker_section_pointers_t *linker_section_ptr; | |
3668 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
3669 | bfd_size_type amt; | |
3670 | ||
3671 | BFD_ASSERT (lsect != NULL); | |
3672 | ||
3673 | /* Is this a global symbol? */ | |
3674 | if (h != NULL) | |
3675 | { | |
3676 | struct ppc_elf_link_hash_entry *eh; | |
3677 | ||
3678 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3679 | eh = (struct ppc_elf_link_hash_entry *) h; | |
3680 | if (elf_find_pointer_linker_section (eh->linker_section_pointer, | |
3681 | rel->r_addend, | |
3682 | lsect)) | |
3683 | return TRUE; | |
3684 | ||
3685 | ptr_linker_section_ptr = &eh->linker_section_pointer; | |
25dbc73a AM |
3686 | } |
3687 | else | |
3688 | { | |
0c8d6e5c | 3689 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3690 | |
25dbc73a AM |
3691 | /* Allocation of a pointer to a local symbol. */ |
3692 | elf_linker_section_pointers_t **ptr = elf_local_ptr_offsets (abfd); | |
3693 | ||
3694 | /* Allocate a table to hold the local symbols if first time. */ | |
3695 | if (!ptr) | |
3696 | { | |
0ffa91dd | 3697 | unsigned int num_symbols = elf_symtab_hdr (abfd).sh_info; |
25dbc73a AM |
3698 | |
3699 | amt = num_symbols; | |
3700 | amt *= sizeof (elf_linker_section_pointers_t *); | |
3701 | ptr = bfd_zalloc (abfd, amt); | |
3702 | ||
3703 | if (!ptr) | |
3704 | return FALSE; | |
3705 | ||
3706 | elf_local_ptr_offsets (abfd) = ptr; | |
3707 | } | |
3708 | ||
3709 | /* Has this symbol already been allocated? If so, our work is done. */ | |
3710 | if (elf_find_pointer_linker_section (ptr[r_symndx], | |
3711 | rel->r_addend, | |
3712 | lsect)) | |
3713 | return TRUE; | |
252b5132 | 3714 | |
25dbc73a | 3715 | ptr_linker_section_ptr = &ptr[r_symndx]; |
25dbc73a | 3716 | } |
41fcb14e | 3717 | |
25dbc73a AM |
3718 | /* Allocate space for a pointer in the linker section, and allocate |
3719 | a new pointer record from internal memory. */ | |
3720 | BFD_ASSERT (ptr_linker_section_ptr != NULL); | |
3721 | amt = sizeof (elf_linker_section_pointers_t); | |
3722 | linker_section_ptr = bfd_alloc (abfd, amt); | |
41fcb14e | 3723 | |
25dbc73a | 3724 | if (!linker_section_ptr) |
7619e7c7 | 3725 | return FALSE; |
41fcb14e | 3726 | |
25dbc73a AM |
3727 | linker_section_ptr->next = *ptr_linker_section_ptr; |
3728 | linker_section_ptr->addend = rel->r_addend; | |
3729 | linker_section_ptr->lsect = lsect; | |
25dbc73a | 3730 | *ptr_linker_section_ptr = linker_section_ptr; |
41fcb14e | 3731 | |
25dbc73a AM |
3732 | linker_section_ptr->offset = lsect->section->size; |
3733 | lsect->section->size += 4; | |
7619e7c7 | 3734 | |
25dbc73a AM |
3735 | #ifdef DEBUG |
3736 | fprintf (stderr, | |
3737 | "Create pointer in linker section %s, offset = %ld, section size = %ld\n", | |
3738 | lsect->name, (long) linker_section_ptr->offset, | |
3739 | (long) lsect->section->size); | |
3740 | #endif | |
7619e7c7 AM |
3741 | |
3742 | return TRUE; | |
41fcb14e AM |
3743 | } |
3744 | ||
e054468f | 3745 | static struct plt_entry ** |
25dbc73a AM |
3746 | update_local_sym_info (bfd *abfd, |
3747 | Elf_Internal_Shdr *symtab_hdr, | |
3748 | unsigned long r_symndx, | |
3749 | int tls_type) | |
252b5132 | 3750 | { |
25dbc73a | 3751 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); |
e054468f | 3752 | struct plt_entry **local_plt; |
25dbc73a | 3753 | char *local_got_tls_masks; |
252b5132 | 3754 | |
25dbc73a | 3755 | if (local_got_refcounts == NULL) |
252b5132 | 3756 | { |
25dbc73a AM |
3757 | bfd_size_type size = symtab_hdr->sh_info; |
3758 | ||
e054468f AM |
3759 | size *= (sizeof (*local_got_refcounts) |
3760 | + sizeof (*local_plt) | |
3761 | + sizeof (*local_got_tls_masks)); | |
25dbc73a AM |
3762 | local_got_refcounts = bfd_zalloc (abfd, size); |
3763 | if (local_got_refcounts == NULL) | |
e054468f | 3764 | return NULL; |
25dbc73a | 3765 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
252b5132 | 3766 | } |
41fcb14e | 3767 | |
e054468f AM |
3768 | local_plt = (struct plt_entry **) (local_got_refcounts + symtab_hdr->sh_info); |
3769 | local_got_tls_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
25dbc73a | 3770 | local_got_tls_masks[r_symndx] |= tls_type; |
e054468f AM |
3771 | if (tls_type != PLT_IFUNC) |
3772 | local_got_refcounts[r_symndx] += 1; | |
3773 | return local_plt + r_symndx; | |
25dbc73a | 3774 | } |
41fcb14e | 3775 | |
a6aa5195 | 3776 | static bfd_boolean |
3ec01793 | 3777 | update_plt_info (bfd *abfd, struct plt_entry **plist, |
a6aa5195 AM |
3778 | asection *sec, bfd_vma addend) |
3779 | { | |
3780 | struct plt_entry *ent; | |
3781 | ||
32af9f6e AM |
3782 | if (addend < 32768) |
3783 | sec = NULL; | |
3ec01793 | 3784 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3785 | if (ent->sec == sec && ent->addend == addend) |
3786 | break; | |
3787 | if (ent == NULL) | |
3788 | { | |
3789 | bfd_size_type amt = sizeof (*ent); | |
3790 | ent = bfd_alloc (abfd, amt); | |
3791 | if (ent == NULL) | |
3792 | return FALSE; | |
3ec01793 | 3793 | ent->next = *plist; |
a6aa5195 AM |
3794 | ent->sec = sec; |
3795 | ent->addend = addend; | |
3796 | ent->plt.refcount = 0; | |
3ec01793 | 3797 | *plist = ent; |
a6aa5195 AM |
3798 | } |
3799 | ent->plt.refcount += 1; | |
3800 | return TRUE; | |
3801 | } | |
3802 | ||
3803 | static struct plt_entry * | |
3ec01793 | 3804 | find_plt_ent (struct plt_entry **plist, asection *sec, bfd_vma addend) |
a6aa5195 AM |
3805 | { |
3806 | struct plt_entry *ent; | |
3807 | ||
3808 | if (addend < 32768) | |
3809 | sec = NULL; | |
3ec01793 | 3810 | for (ent = *plist; ent != NULL; ent = ent->next) |
a6aa5195 AM |
3811 | if (ent->sec == sec && ent->addend == addend) |
3812 | break; | |
3813 | return ent; | |
3814 | } | |
3815 | ||
e054468f AM |
3816 | static bfd_boolean |
3817 | is_branch_reloc (enum elf_ppc_reloc_type r_type) | |
3818 | { | |
3819 | return (r_type == R_PPC_PLTREL24 | |
3820 | || r_type == R_PPC_LOCAL24PC | |
3821 | || r_type == R_PPC_REL24 | |
3822 | || r_type == R_PPC_REL14 | |
3823 | || r_type == R_PPC_REL14_BRTAKEN | |
3824 | || r_type == R_PPC_REL14_BRNTAKEN | |
3825 | || r_type == R_PPC_ADDR24 | |
3826 | || r_type == R_PPC_ADDR14 | |
3827 | || r_type == R_PPC_ADDR14_BRTAKEN | |
3828 | || r_type == R_PPC_ADDR14_BRNTAKEN); | |
3829 | } | |
3830 | ||
25dbc73a AM |
3831 | static void |
3832 | bad_shared_reloc (bfd *abfd, enum elf_ppc_reloc_type r_type) | |
3833 | { | |
3834 | (*_bfd_error_handler) | |
3835 | (_("%B: relocation %s cannot be used when making a shared object"), | |
3836 | abfd, | |
3837 | ppc_elf_howto_table[r_type]->name); | |
3838 | bfd_set_error (bfd_error_bad_value); | |
252b5132 RH |
3839 | } |
3840 | ||
25dbc73a AM |
3841 | /* Look through the relocs for a section during the first phase, and |
3842 | allocate space in the global offset table or procedure linkage | |
3843 | table. */ | |
252b5132 | 3844 | |
b34976b6 | 3845 | static bfd_boolean |
25dbc73a AM |
3846 | ppc_elf_check_relocs (bfd *abfd, |
3847 | struct bfd_link_info *info, | |
3848 | asection *sec, | |
3849 | const Elf_Internal_Rela *relocs) | |
252b5132 | 3850 | { |
7619e7c7 | 3851 | struct ppc_elf_link_hash_table *htab; |
25dbc73a AM |
3852 | Elf_Internal_Shdr *symtab_hdr; |
3853 | struct elf_link_hash_entry **sym_hashes; | |
3854 | const Elf_Internal_Rela *rel; | |
3855 | const Elf_Internal_Rela *rel_end; | |
a6aa5195 | 3856 | asection *got2, *sreloc; |
727fc41e | 3857 | struct elf_link_hash_entry *tga; |
25dbc73a AM |
3858 | |
3859 | if (info->relocatable) | |
3860 | return TRUE; | |
252b5132 | 3861 | |
c87b5a93 AM |
3862 | /* Don't do anything special with non-loaded, non-alloced sections. |
3863 | In particular, any relocs in such sections should not affect GOT | |
3864 | and PLT reference counting (ie. we don't allow them to create GOT | |
3865 | or PLT entries), there's no possibility or desire to optimize TLS | |
3866 | relocs, and there's not much point in propagating relocs to shared | |
3867 | libs that the dynamic linker won't relocate. */ | |
3868 | if ((sec->flags & SEC_ALLOC) == 0) | |
3869 | return TRUE; | |
3870 | ||
252b5132 | 3871 | #ifdef DEBUG |
25dbc73a AM |
3872 | _bfd_error_handler ("ppc_elf_check_relocs called for section %A in %B", |
3873 | sec, abfd); | |
252b5132 RH |
3874 | #endif |
3875 | ||
0c8d6e5c | 3876 | BFD_ASSERT (is_ppc_elf (abfd)); |
0ffa91dd | 3877 | |
25dbc73a AM |
3878 | /* Initialize howto table if not already done. */ |
3879 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) | |
3880 | ppc_elf_howto_init (); | |
3881 | ||
7619e7c7 | 3882 | htab = ppc_elf_hash_table (info); |
25f23106 AM |
3883 | if (htab->glink == NULL) |
3884 | { | |
3885 | if (htab->elf.dynobj == NULL) | |
3886 | htab->elf.dynobj = abfd; | |
3887 | if (!ppc_elf_create_glink (htab->elf.dynobj, info)) | |
3888 | return FALSE; | |
3889 | } | |
727fc41e AM |
3890 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
3891 | FALSE, FALSE, TRUE); | |
0ffa91dd | 3892 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a | 3893 | sym_hashes = elf_sym_hashes (abfd); |
a6aa5195 | 3894 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
3895 | sreloc = NULL; |
3896 | ||
3897 | rel_end = relocs + sec->reloc_count; | |
3898 | for (rel = relocs; rel < rel_end; rel++) | |
3899 | { | |
3900 | unsigned long r_symndx; | |
3901 | enum elf_ppc_reloc_type r_type; | |
3902 | struct elf_link_hash_entry *h; | |
727fc41e | 3903 | int tls_type; |
25dbc73a AM |
3904 | |
3905 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3906 | if (r_symndx < symtab_hdr->sh_info) | |
3907 | h = NULL; | |
3908 | else | |
973a3492 L |
3909 | { |
3910 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3911 | while (h->root.type == bfd_link_hash_indirect | |
3912 | || h->root.type == bfd_link_hash_warning) | |
3913 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
3914 | |
3915 | /* PR15323, ref flags aren't set for references in the same | |
3916 | object. */ | |
3917 | h->root.non_ir_ref = 1; | |
973a3492 | 3918 | } |
25dbc73a AM |
3919 | |
3920 | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. | |
3921 | This shows up in particular in an R_PPC_ADDR32 in the eabi | |
3922 | startup code. */ | |
3b36f7e6 AM |
3923 | if (h != NULL |
3924 | && htab->got == NULL | |
3925 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
252b5132 | 3926 | { |
3b36f7e6 AM |
3927 | if (htab->elf.dynobj == NULL) |
3928 | htab->elf.dynobj = abfd; | |
3929 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
3930 | return FALSE; | |
3931 | BFD_ASSERT (h == htab->elf.hgot); | |
25dbc73a | 3932 | } |
252b5132 | 3933 | |
727fc41e | 3934 | tls_type = 0; |
de972ffa | 3935 | r_type = ELF32_R_TYPE (rel->r_info); |
06a162cf | 3936 | if (h == NULL && !htab->is_vxworks) |
e054468f | 3937 | { |
06a162cf AM |
3938 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
3939 | abfd, r_symndx); | |
3940 | if (isym == NULL) | |
3941 | return FALSE; | |
3942 | ||
0bed072f | 3943 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
e054468f | 3944 | { |
06a162cf | 3945 | struct plt_entry **ifunc; |
06a162cf | 3946 | |
0bed072f | 3947 | /* Set PLT_IFUNC flag for this sym, no GOT entry yet. */ |
06a162cf AM |
3948 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, |
3949 | PLT_IFUNC); | |
3950 | if (ifunc == NULL) | |
e054468f AM |
3951 | return FALSE; |
3952 | ||
06a162cf AM |
3953 | /* STT_GNU_IFUNC symbols must have a PLT entry; |
3954 | In a non-pie executable even when there are | |
3955 | no plt calls. */ | |
0bed072f AM |
3956 | if (!info->shared |
3957 | || is_branch_reloc (r_type)) | |
e054468f | 3958 | { |
0bed072f AM |
3959 | bfd_vma addend = 0; |
3960 | if (r_type == R_PPC_PLTREL24) | |
3961 | { | |
3962 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
3963 | if (info->shared) | |
3964 | addend = rel->r_addend; | |
3965 | } | |
3966 | if (!update_plt_info (abfd, ifunc, got2, addend)) | |
3967 | return FALSE; | |
e054468f AM |
3968 | } |
3969 | } | |
25f23106 AM |
3970 | } |
3971 | ||
de972ffa AM |
3972 | if (!htab->is_vxworks |
3973 | && is_branch_reloc (r_type) | |
3974 | && h != NULL | |
3975 | && h == tga) | |
25f23106 | 3976 | { |
de972ffa AM |
3977 | if (rel != relocs |
3978 | && (ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSGD | |
3979 | || ELF32_R_TYPE (rel[-1].r_info) == R_PPC_TLSLD)) | |
3980 | /* We have a new-style __tls_get_addr call with a marker | |
3981 | reloc. */ | |
3982 | ; | |
3983 | else | |
3984 | /* Mark this section as having an old-style call. */ | |
3985 | sec->has_tls_get_addr_call = 1; | |
e054468f | 3986 | } |
727fc41e | 3987 | |
25dbc73a AM |
3988 | switch (r_type) |
3989 | { | |
727fc41e AM |
3990 | case R_PPC_TLSGD: |
3991 | case R_PPC_TLSLD: | |
3992 | /* These special tls relocs tie a call to __tls_get_addr with | |
3993 | its parameter symbol. */ | |
3994 | break; | |
3995 | ||
25dbc73a AM |
3996 | case R_PPC_GOT_TLSLD16: |
3997 | case R_PPC_GOT_TLSLD16_LO: | |
3998 | case R_PPC_GOT_TLSLD16_HI: | |
3999 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4000 | tls_type = TLS_TLS | TLS_LD; |
4001 | goto dogottls; | |
252b5132 | 4002 | |
25dbc73a AM |
4003 | case R_PPC_GOT_TLSGD16: |
4004 | case R_PPC_GOT_TLSGD16_LO: | |
4005 | case R_PPC_GOT_TLSGD16_HI: | |
4006 | case R_PPC_GOT_TLSGD16_HA: | |
4007 | tls_type = TLS_TLS | TLS_GD; | |
4008 | goto dogottls; | |
4009 | ||
4010 | case R_PPC_GOT_TPREL16: | |
4011 | case R_PPC_GOT_TPREL16_LO: | |
4012 | case R_PPC_GOT_TPREL16_HI: | |
4013 | case R_PPC_GOT_TPREL16_HA: | |
1d483afe | 4014 | if (!info->executable) |
25dbc73a AM |
4015 | info->flags |= DF_STATIC_TLS; |
4016 | tls_type = TLS_TLS | TLS_TPREL; | |
4017 | goto dogottls; | |
4018 | ||
4019 | case R_PPC_GOT_DTPREL16: | |
4020 | case R_PPC_GOT_DTPREL16_LO: | |
4021 | case R_PPC_GOT_DTPREL16_HI: | |
4022 | case R_PPC_GOT_DTPREL16_HA: | |
4023 | tls_type = TLS_TLS | TLS_DTPREL; | |
4024 | dogottls: | |
4025 | sec->has_tls_reloc = 1; | |
4026 | /* Fall thru */ | |
252b5132 | 4027 | |
25dbc73a AM |
4028 | /* GOT16 relocations */ |
4029 | case R_PPC_GOT16: | |
4030 | case R_PPC_GOT16_LO: | |
4031 | case R_PPC_GOT16_HI: | |
4032 | case R_PPC_GOT16_HA: | |
4033 | /* This symbol requires a global offset table entry. */ | |
4034 | if (htab->got == NULL) | |
4035 | { | |
4036 | if (htab->elf.dynobj == NULL) | |
4037 | htab->elf.dynobj = abfd; | |
4038 | if (!ppc_elf_create_got (htab->elf.dynobj, info)) | |
4039 | return FALSE; | |
4040 | } | |
4041 | if (h != NULL) | |
4042 | { | |
4043 | h->got.refcount += 1; | |
4044 | ppc_elf_hash_entry (h)->tls_mask |= tls_type; | |
4045 | } | |
4046 | else | |
4047 | /* This is a global offset table entry for a local symbol. */ | |
4048 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, tls_type)) | |
4049 | return FALSE; | |
91e21fb7 AM |
4050 | |
4051 | /* We may also need a plt entry if the symbol turns out to be | |
4052 | an ifunc. */ | |
4053 | if (h != NULL && !info->shared) | |
4054 | { | |
4055 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) | |
4056 | return FALSE; | |
4057 | } | |
25dbc73a | 4058 | break; |
252b5132 | 4059 | |
25dbc73a AM |
4060 | /* Indirect .sdata relocation. */ |
4061 | case R_PPC_EMB_SDAI16: | |
4062 | if (info->shared) | |
4063 | { | |
4064 | bad_shared_reloc (abfd, r_type); | |
4065 | return FALSE; | |
4066 | } | |
c9a2f333 AM |
4067 | if (htab->sdata[0].section == NULL |
4068 | && !ppc_elf_create_linker_section (abfd, info, 0, | |
4069 | &htab->sdata[0])) | |
4070 | return FALSE; | |
76750a2f AM |
4071 | if (!elf_create_pointer_linker_section (abfd, &htab->sdata[0], |
4072 | h, rel)) | |
25dbc73a | 4073 | return FALSE; |
046183de AM |
4074 | if (h != NULL) |
4075 | { | |
4076 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4077 | h->non_got_ref = TRUE; | |
4078 | } | |
25dbc73a | 4079 | break; |
252b5132 | 4080 | |
25dbc73a AM |
4081 | /* Indirect .sdata2 relocation. */ |
4082 | case R_PPC_EMB_SDA2I16: | |
4083 | if (info->shared) | |
4084 | { | |
4085 | bad_shared_reloc (abfd, r_type); | |
4086 | return FALSE; | |
4087 | } | |
c9a2f333 AM |
4088 | if (htab->sdata[1].section == NULL |
4089 | && !ppc_elf_create_linker_section (abfd, info, SEC_READONLY, | |
4090 | &htab->sdata[1])) | |
4091 | return FALSE; | |
76750a2f AM |
4092 | if (!elf_create_pointer_linker_section (abfd, &htab->sdata[1], |
4093 | h, rel)) | |
25dbc73a | 4094 | return FALSE; |
046183de AM |
4095 | if (h != NULL) |
4096 | { | |
4097 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4098 | h->non_got_ref = TRUE; | |
4099 | } | |
25dbc73a | 4100 | break; |
252b5132 | 4101 | |
b9c361e0 JL |
4102 | case R_PPC_VLE_SDAREL_LO16A: |
4103 | case R_PPC_VLE_SDAREL_LO16D: | |
4104 | case R_PPC_VLE_SDAREL_HI16A: | |
4105 | case R_PPC_VLE_SDAREL_HI16D: | |
4106 | case R_PPC_VLE_SDAREL_HA16A: | |
4107 | case R_PPC_VLE_SDAREL_HA16D: | |
25dbc73a | 4108 | case R_PPC_SDAREL16: |
046183de | 4109 | if (htab->sdata[0].sym == NULL |
bd6c6e2b | 4110 | && !create_sdata_sym (info, &htab->sdata[0])) |
046183de | 4111 | return FALSE; |
b9c361e0 JL |
4112 | |
4113 | if (htab->sdata[1].sym == NULL | |
4114 | && !create_sdata_sym (info, &htab->sdata[1])) | |
4115 | return FALSE; | |
4116 | ||
046183de AM |
4117 | if (h != NULL) |
4118 | { | |
4119 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4120 | h->non_got_ref = TRUE; | |
4121 | } | |
4122 | break; | |
4123 | ||
b9c361e0 JL |
4124 | case R_PPC_VLE_REL8: |
4125 | case R_PPC_VLE_REL15: | |
4126 | case R_PPC_VLE_REL24: | |
4127 | case R_PPC_VLE_LO16A: | |
4128 | case R_PPC_VLE_LO16D: | |
4129 | case R_PPC_VLE_HI16A: | |
4130 | case R_PPC_VLE_HI16D: | |
4131 | case R_PPC_VLE_HA16A: | |
4132 | case R_PPC_VLE_HA16D: | |
4133 | break; | |
4134 | ||
25dbc73a | 4135 | case R_PPC_EMB_SDA2REL: |
046183de AM |
4136 | if (info->shared) |
4137 | { | |
4138 | bad_shared_reloc (abfd, r_type); | |
4139 | return FALSE; | |
4140 | } | |
4141 | if (htab->sdata[1].sym == NULL | |
bd6c6e2b | 4142 | && !create_sdata_sym (info, &htab->sdata[1])) |
046183de AM |
4143 | return FALSE; |
4144 | if (h != NULL) | |
4145 | { | |
4146 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4147 | h->non_got_ref = TRUE; | |
4148 | } | |
4149 | break; | |
4150 | ||
b9c361e0 JL |
4151 | case R_PPC_VLE_SDA21_LO: |
4152 | case R_PPC_VLE_SDA21: | |
25dbc73a AM |
4153 | case R_PPC_EMB_SDA21: |
4154 | case R_PPC_EMB_RELSDA: | |
046183de AM |
4155 | if (info->shared) |
4156 | { | |
4157 | bad_shared_reloc (abfd, r_type); | |
4158 | return FALSE; | |
4159 | } | |
4160 | if (htab->sdata[0].sym == NULL | |
bd6c6e2b | 4161 | && !create_sdata_sym (info, &htab->sdata[0])) |
046183de AM |
4162 | return FALSE; |
4163 | if (htab->sdata[1].sym == NULL | |
bd6c6e2b | 4164 | && !create_sdata_sym (info, &htab->sdata[1])) |
046183de AM |
4165 | return FALSE; |
4166 | if (h != NULL) | |
4167 | { | |
4168 | ppc_elf_hash_entry (h)->has_sda_refs = TRUE; | |
4169 | h->non_got_ref = TRUE; | |
4170 | } | |
4171 | break; | |
4172 | ||
25dbc73a AM |
4173 | case R_PPC_EMB_NADDR32: |
4174 | case R_PPC_EMB_NADDR16: | |
4175 | case R_PPC_EMB_NADDR16_LO: | |
4176 | case R_PPC_EMB_NADDR16_HI: | |
4177 | case R_PPC_EMB_NADDR16_HA: | |
4178 | if (info->shared) | |
4179 | { | |
4180 | bad_shared_reloc (abfd, r_type); | |
4181 | return FALSE; | |
4182 | } | |
4dc4a9a5 | 4183 | if (h != NULL) |
046183de | 4184 | h->non_got_ref = TRUE; |
25dbc73a | 4185 | break; |
252b5132 | 4186 | |
25dbc73a | 4187 | case R_PPC_PLTREL24: |
de972ffa | 4188 | if (h == NULL) |
6d78d0b9 AM |
4189 | break; |
4190 | /* Fall through */ | |
4191 | case R_PPC_PLT32: | |
25dbc73a AM |
4192 | case R_PPC_PLTREL32: |
4193 | case R_PPC_PLT16_LO: | |
4194 | case R_PPC_PLT16_HI: | |
4195 | case R_PPC_PLT16_HA: | |
4196 | #ifdef DEBUG | |
4197 | fprintf (stderr, "Reloc requires a PLT entry\n"); | |
4198 | #endif | |
4199 | /* This symbol requires a procedure linkage table entry. We | |
4200 | actually build the entry in finish_dynamic_symbol, | |
4201 | because this might be a case of linking PIC code without | |
4202 | linking in any dynamic objects, in which case we don't | |
4203 | need to generate a procedure linkage table after all. */ | |
7619e7c7 | 4204 | |
25dbc73a AM |
4205 | if (h == NULL) |
4206 | { | |
4207 | /* It does not make sense to have a procedure linkage | |
4208 | table entry for a local symbol. */ | |
8de848d8 | 4209 | info->callbacks->einfo (_("%P: %H: %s reloc against local symbol\n"), |
25f53a85 AM |
4210 | abfd, sec, rel->r_offset, |
4211 | ppc_elf_howto_table[r_type]->name); | |
25dbc73a AM |
4212 | bfd_set_error (bfd_error_bad_value); |
4213 | return FALSE; | |
4214 | } | |
a6aa5195 AM |
4215 | else |
4216 | { | |
016687f8 | 4217 | bfd_vma addend = 0; |
ee05f2fe | 4218 | |
016687f8 AM |
4219 | if (r_type == R_PPC_PLTREL24) |
4220 | { | |
4221 | ppc_elf_tdata (abfd)->makes_plt_call = 1; | |
a877a2b6 AM |
4222 | if (info->shared) |
4223 | addend = rel->r_addend; | |
016687f8 | 4224 | } |
a6aa5195 | 4225 | h->needs_plt = 1; |
32af9f6e | 4226 | if (!update_plt_info (abfd, &h->plt.plist, got2, addend)) |
a6aa5195 AM |
4227 | return FALSE; |
4228 | } | |
25dbc73a | 4229 | break; |
ee05f2fe | 4230 | |
25dbc73a AM |
4231 | /* The following relocations don't need to propagate the |
4232 | relocation if linking a shared object since they are | |
4233 | section relative. */ | |
4234 | case R_PPC_SECTOFF: | |
4235 | case R_PPC_SECTOFF_LO: | |
4236 | case R_PPC_SECTOFF_HI: | |
4237 | case R_PPC_SECTOFF_HA: | |
4238 | case R_PPC_DTPREL16: | |
4239 | case R_PPC_DTPREL16_LO: | |
4240 | case R_PPC_DTPREL16_HI: | |
4241 | case R_PPC_DTPREL16_HA: | |
4242 | case R_PPC_TOC16: | |
4243 | break; | |
252b5132 | 4244 | |
d7128ce4 AM |
4245 | case R_PPC_REL16: |
4246 | case R_PPC_REL16_LO: | |
4247 | case R_PPC_REL16_HI: | |
4248 | case R_PPC_REL16_HA: | |
016687f8 | 4249 | ppc_elf_tdata (abfd)->has_rel16 = 1; |
d7128ce4 AM |
4250 | break; |
4251 | ||
a6aa5195 | 4252 | /* These are just markers. */ |
25dbc73a AM |
4253 | case R_PPC_TLS: |
4254 | case R_PPC_EMB_MRKREF: | |
4255 | case R_PPC_NONE: | |
4256 | case R_PPC_max: | |
32af9f6e AM |
4257 | case R_PPC_RELAX: |
4258 | case R_PPC_RELAX_PLT: | |
4259 | case R_PPC_RELAX_PLTREL24: | |
25dbc73a | 4260 | break; |
252b5132 | 4261 | |
25dbc73a AM |
4262 | /* These should only appear in dynamic objects. */ |
4263 | case R_PPC_COPY: | |
4264 | case R_PPC_GLOB_DAT: | |
4265 | case R_PPC_JMP_SLOT: | |
4266 | case R_PPC_RELATIVE: | |
e054468f | 4267 | case R_PPC_IRELATIVE: |
25dbc73a | 4268 | break; |
252b5132 | 4269 | |
25dbc73a AM |
4270 | /* These aren't handled yet. We'll report an error later. */ |
4271 | case R_PPC_ADDR30: | |
4272 | case R_PPC_EMB_RELSEC16: | |
4273 | case R_PPC_EMB_RELST_LO: | |
4274 | case R_PPC_EMB_RELST_HI: | |
4275 | case R_PPC_EMB_RELST_HA: | |
4276 | case R_PPC_EMB_BIT_FLD: | |
4277 | break; | |
252b5132 | 4278 | |
25dbc73a AM |
4279 | /* This refers only to functions defined in the shared library. */ |
4280 | case R_PPC_LOCAL24PC: | |
727fc41e | 4281 | if (h != NULL && h == htab->elf.hgot && htab->plt_type == PLT_UNSET) |
016687f8 AM |
4282 | { |
4283 | htab->plt_type = PLT_OLD; | |
4284 | htab->old_bfd = abfd; | |
4285 | } | |
25dbc73a | 4286 | break; |
252b5132 | 4287 | |
25dbc73a AM |
4288 | /* This relocation describes the C++ object vtable hierarchy. |
4289 | Reconstruct it for later use during GC. */ | |
4290 | case R_PPC_GNU_VTINHERIT: | |
4291 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
4292 | return FALSE; | |
4293 | break; | |
252b5132 | 4294 | |
25dbc73a AM |
4295 | /* This relocation describes which C++ vtable entries are actually |
4296 | used. Record for later use during GC. */ | |
4297 | case R_PPC_GNU_VTENTRY: | |
d17e0c6e JB |
4298 | BFD_ASSERT (h != NULL); |
4299 | if (h != NULL | |
4300 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
25dbc73a AM |
4301 | return FALSE; |
4302 | break; | |
252b5132 | 4303 | |
25dbc73a AM |
4304 | /* We shouldn't really be seeing these. */ |
4305 | case R_PPC_TPREL32: | |
1d483afe AM |
4306 | case R_PPC_TPREL16: |
4307 | case R_PPC_TPREL16_LO: | |
4308 | case R_PPC_TPREL16_HI: | |
4309 | case R_PPC_TPREL16_HA: | |
4310 | if (!info->executable) | |
25dbc73a AM |
4311 | info->flags |= DF_STATIC_TLS; |
4312 | goto dodyn; | |
252b5132 | 4313 | |
25dbc73a AM |
4314 | /* Nor these. */ |
4315 | case R_PPC_DTPMOD32: | |
4316 | case R_PPC_DTPREL32: | |
4317 | goto dodyn; | |
252b5132 | 4318 | |
9edfd1af AM |
4319 | case R_PPC_REL32: |
4320 | if (h == NULL | |
4321 | && got2 != NULL | |
4322 | && (sec->flags & SEC_CODE) != 0 | |
a877a2b6 | 4323 | && info->shared |
4a3dc543 | 4324 | && htab->plt_type == PLT_UNSET) |
9edfd1af AM |
4325 | { |
4326 | /* Old -fPIC gcc code has .long LCTOC1-LCFx just before | |
4327 | the start of a function, which assembles to a REL32 | |
4328 | reference to .got2. If we detect one of these, then | |
4329 | force the old PLT layout because the linker cannot | |
4330 | reliably deduce the GOT pointer value needed for | |
4331 | PLT call stubs. */ | |
4332 | asection *s; | |
87d72d41 | 4333 | Elf_Internal_Sym *isym; |
9edfd1af | 4334 | |
87d72d41 AM |
4335 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4336 | abfd, r_symndx); | |
4337 | if (isym == NULL) | |
4338 | return FALSE; | |
4339 | ||
4340 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
9edfd1af | 4341 | if (s == got2) |
016687f8 AM |
4342 | { |
4343 | htab->plt_type = PLT_OLD; | |
4344 | htab->old_bfd = abfd; | |
4345 | } | |
9edfd1af | 4346 | } |
7123df0e | 4347 | if (h == NULL || h == htab->elf.hgot) |
fd38b44c | 4348 | break; |
625af618 AM |
4349 | /* fall through */ |
4350 | ||
4351 | case R_PPC_ADDR32: | |
4352 | case R_PPC_ADDR16: | |
4353 | case R_PPC_ADDR16_LO: | |
4354 | case R_PPC_ADDR16_HI: | |
4355 | case R_PPC_ADDR16_HA: | |
4356 | case R_PPC_UADDR32: | |
4357 | case R_PPC_UADDR16: | |
4358 | if (h != NULL && !info->shared) | |
4359 | { | |
4360 | /* We may need a plt entry if the symbol turns out to be | |
4361 | a function defined in a dynamic object. */ | |
3ec01793 | 4362 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
625af618 AM |
4363 | return FALSE; |
4364 | ||
4365 | /* We may need a copy reloc too. */ | |
4366 | h->non_got_ref = 1; | |
4367 | h->pointer_equality_needed = 1; | |
4368 | } | |
4369 | goto dodyn; | |
9edfd1af | 4370 | |
25dbc73a AM |
4371 | case R_PPC_REL24: |
4372 | case R_PPC_REL14: | |
4373 | case R_PPC_REL14_BRTAKEN: | |
4374 | case R_PPC_REL14_BRNTAKEN: | |
d7128ce4 | 4375 | if (h == NULL) |
25dbc73a | 4376 | break; |
7123df0e | 4377 | if (h == htab->elf.hgot) |
d7128ce4 | 4378 | { |
7123df0e | 4379 | if (htab->plt_type == PLT_UNSET) |
016687f8 AM |
4380 | { |
4381 | htab->plt_type = PLT_OLD; | |
4382 | htab->old_bfd = abfd; | |
4383 | } | |
d7128ce4 AM |
4384 | break; |
4385 | } | |
25dbc73a | 4386 | /* fall through */ |
ee05f2fe | 4387 | |
25dbc73a | 4388 | case R_PPC_ADDR24: |
25dbc73a AM |
4389 | case R_PPC_ADDR14: |
4390 | case R_PPC_ADDR14_BRTAKEN: | |
4391 | case R_PPC_ADDR14_BRNTAKEN: | |
25dbc73a AM |
4392 | if (h != NULL && !info->shared) |
4393 | { | |
4394 | /* We may need a plt entry if the symbol turns out to be | |
4395 | a function defined in a dynamic object. */ | |
e054468f | 4396 | h->needs_plt = 1; |
de972ffa | 4397 | if (!update_plt_info (abfd, &h->plt.plist, NULL, 0)) |
a6aa5195 | 4398 | return FALSE; |
625af618 | 4399 | break; |
25dbc73a | 4400 | } |
7619e7c7 | 4401 | |
25dbc73a AM |
4402 | dodyn: |
4403 | /* If we are creating a shared library, and this is a reloc | |
4404 | against a global symbol, or a non PC relative reloc | |
4405 | against a local symbol, then we need to copy the reloc | |
4406 | into the shared library. However, if we are linking with | |
4407 | -Bsymbolic, we do not need to copy a reloc against a | |
4408 | global symbol which is defined in an object we are | |
4409 | including in the link (i.e., DEF_REGULAR is set). At | |
4410 | this point we have not seen all the input files, so it is | |
4411 | possible that DEF_REGULAR is not set now but will be set | |
4412 | later (it is never cleared). In case of a weak definition, | |
4413 | DEF_REGULAR may be cleared later by a strong definition in | |
4414 | a shared library. We account for that possibility below by | |
4415 | storing information in the dyn_relocs field of the hash | |
4416 | table entry. A similar situation occurs when creating | |
4417 | shared libraries and symbol visibility changes render the | |
4418 | symbol local. | |
7619e7c7 | 4419 | |
25dbc73a AM |
4420 | If on the other hand, we are creating an executable, we |
4421 | may need to keep relocations for symbols satisfied by a | |
4422 | dynamic library if we manage to avoid copy relocs for the | |
4423 | symbol. */ | |
4424 | if ((info->shared | |
1d483afe | 4425 | && (must_be_dyn_reloc (info, r_type) |
25dbc73a | 4426 | || (h != NULL |
198f1157 | 4427 | && (!SYMBOLIC_BIND (info, h) |
25dbc73a AM |
4428 | || h->root.type == bfd_link_hash_defweak |
4429 | || !h->def_regular)))) | |
4430 | || (ELIMINATE_COPY_RELOCS | |
4431 | && !info->shared | |
25dbc73a AM |
4432 | && h != NULL |
4433 | && (h->root.type == bfd_link_hash_defweak | |
de972ffa | 4434 | || !h->def_regular))) |
25dbc73a | 4435 | { |
25dbc73a AM |
4436 | #ifdef DEBUG |
4437 | fprintf (stderr, | |
4438 | "ppc_elf_check_relocs needs to " | |
4439 | "create relocation for %s\n", | |
4440 | (h && h->root.root.string | |
4441 | ? h->root.root.string : "<unknown>")); | |
4442 | #endif | |
4443 | if (sreloc == NULL) | |
4444 | { | |
c9a2f333 AM |
4445 | if (htab->elf.dynobj == NULL) |
4446 | htab->elf.dynobj = abfd; | |
83bac4b0 NC |
4447 | |
4448 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
4449 | (sec, htab->elf.dynobj, 2, abfd, /*rela?*/ TRUE); | |
4450 | ||
25dbc73a | 4451 | if (sreloc == NULL) |
83bac4b0 | 4452 | return FALSE; |
25dbc73a | 4453 | } |
7619e7c7 | 4454 | |
25dbc73a AM |
4455 | /* If this is a global symbol, we count the number of |
4456 | relocations we need for this symbol. */ | |
4457 | if (h != NULL) | |
4458 | { | |
f95f8542 AM |
4459 | struct elf_dyn_relocs *p; |
4460 | struct elf_dyn_relocs **rel_head; | |
4461 | ||
91d6fa6a | 4462 | rel_head = &ppc_elf_hash_entry (h)->dyn_relocs; |
f95f8542 AM |
4463 | p = *rel_head; |
4464 | if (p == NULL || p->sec != sec) | |
4465 | { | |
4466 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4467 | if (p == NULL) | |
4468 | return FALSE; | |
4469 | p->next = *rel_head; | |
4470 | *rel_head = p; | |
4471 | p->sec = sec; | |
4472 | p->count = 0; | |
4473 | p->pc_count = 0; | |
4474 | } | |
4475 | p->count += 1; | |
4476 | if (!must_be_dyn_reloc (info, r_type)) | |
4477 | p->pc_count += 1; | |
25dbc73a AM |
4478 | } |
4479 | else | |
4480 | { | |
4481 | /* Track dynamic relocs needed for local syms too. | |
4482 | We really need local syms available to do this | |
4483 | easily. Oh well. */ | |
f95f8542 AM |
4484 | struct ppc_dyn_relocs *p; |
4485 | struct ppc_dyn_relocs **rel_head; | |
4486 | bfd_boolean is_ifunc; | |
25dbc73a | 4487 | asection *s; |
6edfbbad | 4488 | void *vpp; |
87d72d41 | 4489 | Elf_Internal_Sym *isym; |
6edfbbad | 4490 | |
87d72d41 AM |
4491 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
4492 | abfd, r_symndx); | |
4493 | if (isym == NULL) | |
25dbc73a | 4494 | return FALSE; |
7fce784e | 4495 | |
87d72d41 AM |
4496 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
4497 | if (s == NULL) | |
4498 | s = sec; | |
4499 | ||
6edfbbad | 4500 | vpp = &elf_section_data (s)->local_dynrel; |
f95f8542 AM |
4501 | rel_head = (struct ppc_dyn_relocs **) vpp; |
4502 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
4503 | p = *rel_head; | |
4504 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
4505 | p = p->next; | |
4506 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
4507 | { | |
4508 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
4509 | if (p == NULL) | |
4510 | return FALSE; | |
4511 | p->next = *rel_head; | |
4512 | *rel_head = p; | |
4513 | p->sec = sec; | |
4514 | p->ifunc = is_ifunc; | |
4515 | p->count = 0; | |
4516 | } | |
4517 | p->count += 1; | |
25dbc73a | 4518 | } |
7619e7c7 | 4519 | } |
25dbc73a AM |
4520 | |
4521 | break; | |
7619e7c7 AM |
4522 | } |
4523 | } | |
ee05f2fe | 4524 | |
25dbc73a AM |
4525 | return TRUE; |
4526 | } | |
4527 | \f | |
34c8bcba JM |
4528 | |
4529 | /* Merge object attributes from IBFD into OBFD. Raise an error if | |
4530 | there are conflicting attributes. */ | |
4531 | static bfd_boolean | |
4532 | ppc_elf_merge_obj_attributes (bfd *ibfd, bfd *obfd) | |
4533 | { | |
c6e65352 DJ |
4534 | obj_attribute *in_attr, *in_attrs; |
4535 | obj_attribute *out_attr, *out_attrs; | |
34c8bcba JM |
4536 | |
4537 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
4538 | { | |
4539 | /* This is the first object. Copy the attributes. */ | |
4540 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
4541 | ||
4542 | /* Use the Tag_null value to indicate the attributes have been | |
4543 | initialized. */ | |
4544 | elf_known_obj_attributes_proc (obfd)[0].i = 1; | |
4545 | ||
4546 | return TRUE; | |
4547 | } | |
4548 | ||
c6e65352 DJ |
4549 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
4550 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
4551 | ||
34c8bcba JM |
4552 | /* Check for conflicting Tag_GNU_Power_ABI_FP attributes and merge |
4553 | non-conflicting ones. */ | |
c6e65352 DJ |
4554 | in_attr = &in_attrs[Tag_GNU_Power_ABI_FP]; |
4555 | out_attr = &out_attrs[Tag_GNU_Power_ABI_FP]; | |
4556 | if (in_attr->i != out_attr->i) | |
34c8bcba | 4557 | { |
c6e65352 DJ |
4558 | out_attr->type = 1; |
4559 | if (out_attr->i == 0) | |
4560 | out_attr->i = in_attr->i; | |
4561 | else if (in_attr->i == 0) | |
34c8bcba | 4562 | ; |
c6e65352 | 4563 | else if (out_attr->i == 1 && in_attr->i == 2) |
34c8bcba JM |
4564 | _bfd_error_handler |
4565 | (_("Warning: %B uses hard float, %B uses soft float"), obfd, ibfd); | |
3c7b9897 AM |
4566 | else if (out_attr->i == 1 && in_attr->i == 3) |
4567 | _bfd_error_handler | |
5b914448 | 4568 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4569 | obfd, ibfd); |
4570 | else if (out_attr->i == 3 && in_attr->i == 1) | |
4571 | _bfd_error_handler | |
5b914448 | 4572 | (_("Warning: %B uses double-precision hard float, %B uses single-precision hard float"), |
3c7b9897 AM |
4573 | ibfd, obfd); |
4574 | else if (out_attr->i == 3 && in_attr->i == 2) | |
4575 | _bfd_error_handler | |
5b914448 | 4576 | (_("Warning: %B uses soft float, %B uses single-precision hard float"), |
3c7b9897 AM |
4577 | ibfd, obfd); |
4578 | else if (out_attr->i == 2 && (in_attr->i == 1 || in_attr->i == 3)) | |
34c8bcba JM |
4579 | _bfd_error_handler |
4580 | (_("Warning: %B uses hard float, %B uses soft float"), ibfd, obfd); | |
3c7b9897 | 4581 | else if (in_attr->i > 3) |
34c8bcba JM |
4582 | _bfd_error_handler |
4583 | (_("Warning: %B uses unknown floating point ABI %d"), ibfd, | |
c6e65352 | 4584 | in_attr->i); |
34c8bcba JM |
4585 | else |
4586 | _bfd_error_handler | |
4587 | (_("Warning: %B uses unknown floating point ABI %d"), obfd, | |
c6e65352 DJ |
4588 | out_attr->i); |
4589 | } | |
4590 | ||
4591 | /* Check for conflicting Tag_GNU_Power_ABI_Vector attributes and | |
4592 | merge non-conflicting ones. */ | |
4593 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Vector]; | |
4594 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Vector]; | |
4595 | if (in_attr->i != out_attr->i) | |
4596 | { | |
4597 | const char *in_abi = NULL, *out_abi = NULL; | |
4598 | ||
4599 | switch (in_attr->i) | |
4600 | { | |
4601 | case 1: in_abi = "generic"; break; | |
4602 | case 2: in_abi = "AltiVec"; break; | |
4603 | case 3: in_abi = "SPE"; break; | |
4604 | } | |
4605 | ||
4606 | switch (out_attr->i) | |
4607 | { | |
4608 | case 1: out_abi = "generic"; break; | |
4609 | case 2: out_abi = "AltiVec"; break; | |
4610 | case 3: out_abi = "SPE"; break; | |
4611 | } | |
4612 | ||
4613 | out_attr->type = 1; | |
4614 | if (out_attr->i == 0) | |
4615 | out_attr->i = in_attr->i; | |
4616 | else if (in_attr->i == 0) | |
4617 | ; | |
4618 | /* For now, allow generic to transition to AltiVec or SPE | |
4619 | without a warning. If GCC marked files with their stack | |
4620 | alignment and used don't-care markings for files which are | |
4621 | not affected by the vector ABI, we could warn about this | |
4622 | case too. */ | |
4623 | else if (out_attr->i == 1) | |
4624 | out_attr->i = in_attr->i; | |
4625 | else if (in_attr->i == 1) | |
4626 | ; | |
4627 | else if (in_abi == NULL) | |
4628 | _bfd_error_handler | |
4629 | (_("Warning: %B uses unknown vector ABI %d"), ibfd, | |
4630 | in_attr->i); | |
4631 | else if (out_abi == NULL) | |
4632 | _bfd_error_handler | |
4633 | (_("Warning: %B uses unknown vector ABI %d"), obfd, | |
4634 | in_attr->i); | |
4635 | else | |
4636 | _bfd_error_handler | |
4637 | (_("Warning: %B uses vector ABI \"%s\", %B uses \"%s\""), | |
4638 | ibfd, obfd, in_abi, out_abi); | |
34c8bcba JM |
4639 | } |
4640 | ||
f82e0623 NF |
4641 | /* Check for conflicting Tag_GNU_Power_ABI_Struct_Return attributes |
4642 | and merge non-conflicting ones. */ | |
4643 | in_attr = &in_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4644 | out_attr = &out_attrs[Tag_GNU_Power_ABI_Struct_Return]; | |
4645 | if (in_attr->i != out_attr->i) | |
4646 | { | |
4647 | out_attr->type = 1; | |
4648 | if (out_attr->i == 0) | |
4649 | out_attr->i = in_attr->i; | |
4650 | else if (in_attr->i == 0) | |
4651 | ; | |
4652 | else if (out_attr->i == 1 && in_attr->i == 2) | |
4653 | _bfd_error_handler | |
4654 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), obfd, ibfd); | |
4655 | else if (out_attr->i == 2 && in_attr->i == 1) | |
4656 | _bfd_error_handler | |
4657 | (_("Warning: %B uses r3/r4 for small structure returns, %B uses memory"), ibfd, obfd); | |
4658 | else if (in_attr->i > 2) | |
4659 | _bfd_error_handler | |
4660 | (_("Warning: %B uses unknown small structure return convention %d"), ibfd, | |
4661 | in_attr->i); | |
4662 | else | |
4663 | _bfd_error_handler | |
4664 | (_("Warning: %B uses unknown small structure return convention %d"), obfd, | |
4665 | out_attr->i); | |
4666 | } | |
4667 | ||
34c8bcba JM |
4668 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
4669 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
4670 | ||
4671 | return TRUE; | |
4672 | } | |
4673 | ||
8853c3d3 AM |
4674 | /* Merge backend specific data from an object file to the output |
4675 | object file when linking. */ | |
4676 | ||
4677 | static bfd_boolean | |
4678 | ppc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4679 | { | |
4680 | flagword old_flags; | |
4681 | flagword new_flags; | |
4682 | bfd_boolean error; | |
4683 | ||
0c8d6e5c | 4684 | if (!is_ppc_elf (ibfd) || !is_ppc_elf (obfd)) |
8853c3d3 AM |
4685 | return TRUE; |
4686 | ||
cc643b88 | 4687 | /* Check if we have the same endianness. */ |
8853c3d3 AM |
4688 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) |
4689 | return FALSE; | |
4690 | ||
34c8bcba JM |
4691 | if (!ppc_elf_merge_obj_attributes (ibfd, obfd)) |
4692 | return FALSE; | |
4693 | ||
8853c3d3 AM |
4694 | new_flags = elf_elfheader (ibfd)->e_flags; |
4695 | old_flags = elf_elfheader (obfd)->e_flags; | |
4696 | if (!elf_flags_init (obfd)) | |
4697 | { | |
4698 | /* First call, no flags set. */ | |
4699 | elf_flags_init (obfd) = TRUE; | |
4700 | elf_elfheader (obfd)->e_flags = new_flags; | |
4701 | } | |
4702 | ||
4703 | /* Compatible flags are ok. */ | |
4704 | else if (new_flags == old_flags) | |
4705 | ; | |
4706 | ||
4707 | /* Incompatible flags. */ | |
4708 | else | |
4709 | { | |
4710 | /* Warn about -mrelocatable mismatch. Allow -mrelocatable-lib | |
4711 | to be linked with either. */ | |
4712 | error = FALSE; | |
4713 | if ((new_flags & EF_PPC_RELOCATABLE) != 0 | |
4714 | && (old_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0) | |
4715 | { | |
4716 | error = TRUE; | |
4717 | (*_bfd_error_handler) | |
4718 | (_("%B: compiled with -mrelocatable and linked with " | |
4719 | "modules compiled normally"), ibfd); | |
4720 | } | |
4721 | else if ((new_flags & (EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB)) == 0 | |
4722 | && (old_flags & EF_PPC_RELOCATABLE) != 0) | |
4723 | { | |
4724 | error = TRUE; | |
4725 | (*_bfd_error_handler) | |
4726 | (_("%B: compiled normally and linked with " | |
4727 | "modules compiled with -mrelocatable"), ibfd); | |
4728 | } | |
4729 | ||
4730 | /* The output is -mrelocatable-lib iff both the input files are. */ | |
4731 | if (! (new_flags & EF_PPC_RELOCATABLE_LIB)) | |
4732 | elf_elfheader (obfd)->e_flags &= ~EF_PPC_RELOCATABLE_LIB; | |
4733 | ||
4734 | /* The output is -mrelocatable iff it can't be -mrelocatable-lib, | |
4735 | but each input file is either -mrelocatable or -mrelocatable-lib. */ | |
4736 | if (! (elf_elfheader (obfd)->e_flags & EF_PPC_RELOCATABLE_LIB) | |
4737 | && (new_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE)) | |
4738 | && (old_flags & (EF_PPC_RELOCATABLE_LIB | EF_PPC_RELOCATABLE))) | |
4739 | elf_elfheader (obfd)->e_flags |= EF_PPC_RELOCATABLE; | |
4740 | ||
4741 | /* Do not warn about eabi vs. V.4 mismatch, just or in the bit if | |
4742 | any module uses it. */ | |
4743 | elf_elfheader (obfd)->e_flags |= (new_flags & EF_PPC_EMB); | |
4744 | ||
4745 | new_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4746 | old_flags &= ~(EF_PPC_RELOCATABLE | EF_PPC_RELOCATABLE_LIB | EF_PPC_EMB); | |
4747 | ||
4748 | /* Warn about any other mismatches. */ | |
4749 | if (new_flags != old_flags) | |
4750 | { | |
4751 | error = TRUE; | |
4752 | (*_bfd_error_handler) | |
4753 | (_("%B: uses different e_flags (0x%lx) fields " | |
4754 | "than previous modules (0x%lx)"), | |
4755 | ibfd, (long) new_flags, (long) old_flags); | |
4756 | } | |
4757 | ||
4758 | if (error) | |
4759 | { | |
4760 | bfd_set_error (bfd_error_bad_value); | |
4761 | return FALSE; | |
4762 | } | |
4763 | } | |
4764 | ||
4765 | return TRUE; | |
4766 | } | |
b9c361e0 JL |
4767 | |
4768 | static void | |
4769 | ppc_elf_vle_split16 (bfd *output_bfd, bfd_byte *contents, | |
4770 | bfd_vma offset, bfd_vma relocation, | |
4771 | split16_format_type split16_format) | |
4772 | ||
4773 | { | |
4774 | bfd_vma insn, top5, bottom11; | |
4775 | ||
4776 | insn = bfd_get_32 (output_bfd, contents + offset); | |
4777 | top5 = relocation >> 11; | |
4778 | top5 = top5 << (split16_format == split16a_type ? 20 : 16); | |
4779 | bottom11 = relocation & 0x7ff; | |
4780 | insn |= top5; | |
4781 | insn |= bottom11; | |
4782 | bfd_put_32 (output_bfd, insn, contents + offset); | |
4783 | } | |
4784 | ||
8853c3d3 | 4785 | \f |
d7128ce4 AM |
4786 | /* Choose which PLT scheme to use, and set .plt flags appropriately. |
4787 | Returns -1 on error, 0 for old PLT, 1 for new PLT. */ | |
4788 | int | |
4789 | ppc_elf_select_plt_layout (bfd *output_bfd ATTRIBUTE_UNUSED, | |
4790 | struct bfd_link_info *info, | |
016687f8 | 4791 | enum ppc_elf_plt_type plt_style, |
0ba07910 | 4792 | int emit_stub_syms) |
d7128ce4 AM |
4793 | { |
4794 | struct ppc_elf_link_hash_table *htab; | |
9d8504b1 | 4795 | flagword flags; |
d7128ce4 AM |
4796 | |
4797 | htab = ppc_elf_hash_table (info); | |
4a3dc543 | 4798 | |
a7f2871e AM |
4799 | htab->emit_stub_syms = emit_stub_syms; |
4800 | ||
4a3dc543 | 4801 | if (htab->plt_type == PLT_UNSET) |
016687f8 | 4802 | { |
b3874e1a AM |
4803 | struct elf_link_hash_entry *h; |
4804 | ||
016687f8 AM |
4805 | if (plt_style == PLT_OLD) |
4806 | htab->plt_type = PLT_OLD; | |
b3874e1a AM |
4807 | else if (info->shared |
4808 | && htab->elf.dynamic_sections_created | |
4809 | && (h = elf_link_hash_lookup (&htab->elf, "_mcount", | |
4810 | FALSE, FALSE, TRUE)) != NULL | |
4811 | && (h->type == STT_FUNC | |
4812 | || h->needs_plt) | |
4813 | && h->ref_regular | |
4814 | && !(SYMBOL_CALLS_LOCAL (info, h) | |
4815 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
4816 | && h->root.type == bfd_link_hash_undefweak))) | |
4817 | { | |
4818 | /* Profiling of shared libs (and pies) is not supported with | |
4819 | secure plt, because ppc32 does profiling before a | |
4820 | function prologue and a secure plt pic call stubs needs | |
4821 | r30 to be set up. */ | |
4822 | htab->plt_type = PLT_OLD; | |
4823 | } | |
016687f8 AM |
4824 | else |
4825 | { | |
4826 | bfd *ibfd; | |
4827 | enum ppc_elf_plt_type plt_type = plt_style; | |
4828 | ||
4829 | /* Look through the reloc flags left by ppc_elf_check_relocs. | |
4830 | Use the old style bss plt if a file makes plt calls | |
4831 | without using the new relocs, and if ld isn't given | |
4832 | --secure-plt and we never see REL16 relocs. */ | |
4833 | if (plt_type == PLT_UNSET) | |
4834 | plt_type = PLT_OLD; | |
60b31e8d | 4835 | for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next) |
0c8d6e5c | 4836 | if (is_ppc_elf (ibfd)) |
016687f8 AM |
4837 | { |
4838 | if (ppc_elf_tdata (ibfd)->has_rel16) | |
4839 | plt_type = PLT_NEW; | |
4840 | else if (ppc_elf_tdata (ibfd)->makes_plt_call) | |
4841 | { | |
4842 | plt_type = PLT_OLD; | |
4843 | htab->old_bfd = ibfd; | |
4844 | break; | |
4845 | } | |
4846 | } | |
4847 | htab->plt_type = plt_type; | |
4848 | } | |
4849 | } | |
4850 | if (htab->plt_type == PLT_OLD && plt_style == PLT_NEW) | |
b3874e1a AM |
4851 | { |
4852 | if (htab->old_bfd != NULL) | |
4853 | info->callbacks->einfo (_("%P: bss-plt forced due to %B\n"), | |
4854 | htab->old_bfd); | |
4855 | else | |
4856 | info->callbacks->einfo (_("%P: bss-plt forced by profiling\n")); | |
4857 | } | |
d7128ce4 | 4858 | |
4a3dc543 | 4859 | BFD_ASSERT (htab->plt_type != PLT_VXWORKS); |
9d8504b1 | 4860 | |
4a3dc543 | 4861 | if (htab->plt_type == PLT_NEW) |
9d8504b1 PB |
4862 | { |
4863 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | |
4864 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
86b9da88 AM |
4865 | |
4866 | /* The new PLT is a loaded section. */ | |
4867 | if (htab->plt != NULL | |
4868 | && !bfd_set_section_flags (htab->elf.dynobj, htab->plt, flags)) | |
4869 | return -1; | |
4870 | ||
4871 | /* The new GOT is not executable. */ | |
4872 | if (htab->got != NULL | |
4873 | && !bfd_set_section_flags (htab->elf.dynobj, htab->got, flags)) | |
4874 | return -1; | |
d7128ce4 AM |
4875 | } |
4876 | else | |
4877 | { | |
4878 | /* Stop an unused .glink section from affecting .text alignment. */ | |
86b9da88 AM |
4879 | if (htab->glink != NULL |
4880 | && !bfd_set_section_alignment (htab->elf.dynobj, htab->glink, 0)) | |
4881 | return -1; | |
d7128ce4 | 4882 | } |
4a3dc543 | 4883 | return htab->plt_type == PLT_NEW; |
d7128ce4 AM |
4884 | } |
4885 | \f | |
25dbc73a AM |
4886 | /* Return the section that should be marked against GC for a given |
4887 | relocation. */ | |
586119b3 | 4888 | |
25dbc73a AM |
4889 | static asection * |
4890 | ppc_elf_gc_mark_hook (asection *sec, | |
07adf181 | 4891 | struct bfd_link_info *info, |
25dbc73a AM |
4892 | Elf_Internal_Rela *rel, |
4893 | struct elf_link_hash_entry *h, | |
4894 | Elf_Internal_Sym *sym) | |
4895 | { | |
4896 | if (h != NULL) | |
07adf181 AM |
4897 | switch (ELF32_R_TYPE (rel->r_info)) |
4898 | { | |
4899 | case R_PPC_GNU_VTINHERIT: | |
4900 | case R_PPC_GNU_VTENTRY: | |
4901 | return NULL; | |
4902 | } | |
4903 | ||
4904 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
25dbc73a | 4905 | } |
a876ecf9 | 4906 | |
25dbc73a AM |
4907 | /* Update the got, plt and dynamic reloc reference counts for the |
4908 | section being removed. */ | |
4909 | ||
4910 | static bfd_boolean | |
4911 | ppc_elf_gc_sweep_hook (bfd *abfd, | |
4912 | struct bfd_link_info *info, | |
4913 | asection *sec, | |
4914 | const Elf_Internal_Rela *relocs) | |
4915 | { | |
4916 | struct ppc_elf_link_hash_table *htab; | |
4917 | Elf_Internal_Shdr *symtab_hdr; | |
4918 | struct elf_link_hash_entry **sym_hashes; | |
4919 | bfd_signed_vma *local_got_refcounts; | |
4920 | const Elf_Internal_Rela *rel, *relend; | |
a6aa5195 | 4921 | asection *got2; |
25dbc73a | 4922 | |
7dda2462 TG |
4923 | if (info->relocatable) |
4924 | return TRUE; | |
4925 | ||
c87b5a93 AM |
4926 | if ((sec->flags & SEC_ALLOC) == 0) |
4927 | return TRUE; | |
4928 | ||
25dbc73a AM |
4929 | elf_section_data (sec)->local_dynrel = NULL; |
4930 | ||
4931 | htab = ppc_elf_hash_table (info); | |
0ffa91dd | 4932 | symtab_hdr = &elf_symtab_hdr (abfd); |
25dbc73a AM |
4933 | sym_hashes = elf_sym_hashes (abfd); |
4934 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
a6aa5195 | 4935 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
25dbc73a AM |
4936 | |
4937 | relend = relocs + sec->reloc_count; | |
4938 | for (rel = relocs; rel < relend; rel++) | |
4939 | { | |
4940 | unsigned long r_symndx; | |
4941 | enum elf_ppc_reloc_type r_type; | |
4942 | struct elf_link_hash_entry *h = NULL; | |
4943 | ||
4944 | r_symndx = ELF32_R_SYM (rel->r_info); | |
4945 | if (r_symndx >= symtab_hdr->sh_info) | |
a876ecf9 | 4946 | { |
6061a67d | 4947 | struct elf_dyn_relocs **pp, *p; |
25dbc73a AM |
4948 | struct ppc_elf_link_hash_entry *eh; |
4949 | ||
4950 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
4951 | while (h->root.type == bfd_link_hash_indirect | |
4952 | || h->root.type == bfd_link_hash_warning) | |
4953 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
4954 | eh = (struct ppc_elf_link_hash_entry *) h; | |
4955 | ||
4956 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4957 | if (p->sec == sec) | |
4958 | { | |
4959 | /* Everything must go for SEC. */ | |
4960 | *pp = p->next; | |
4961 | break; | |
4962 | } | |
a876ecf9 | 4963 | } |
ee05f2fe | 4964 | |
25dbc73a | 4965 | r_type = ELF32_R_TYPE (rel->r_info); |
de972ffa AM |
4966 | if (!htab->is_vxworks |
4967 | && h == NULL | |
4968 | && local_got_refcounts != NULL | |
4969 | && (!info->shared | |
4970 | || is_branch_reloc (r_type))) | |
e054468f | 4971 | { |
de972ffa AM |
4972 | struct plt_entry **local_plt = (struct plt_entry **) |
4973 | (local_got_refcounts + symtab_hdr->sh_info); | |
4974 | char *local_got_tls_masks = (char *) | |
4975 | (local_plt + symtab_hdr->sh_info); | |
4976 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
e054468f | 4977 | { |
de972ffa | 4978 | struct plt_entry **ifunc = local_plt + r_symndx; |
a877a2b6 AM |
4979 | bfd_vma addend = 0; |
4980 | struct plt_entry *ent; | |
4981 | ||
4982 | if (r_type == R_PPC_PLTREL24 && info->shared) | |
4983 | addend = rel->r_addend; | |
4984 | ent = find_plt_ent (ifunc, got2, addend); | |
e054468f AM |
4985 | if (ent->plt.refcount > 0) |
4986 | ent->plt.refcount -= 1; | |
4987 | continue; | |
4988 | } | |
4989 | } | |
4990 | ||
25dbc73a | 4991 | switch (r_type) |
ee05f2fe | 4992 | { |
25dbc73a AM |
4993 | case R_PPC_GOT_TLSLD16: |
4994 | case R_PPC_GOT_TLSLD16_LO: | |
4995 | case R_PPC_GOT_TLSLD16_HI: | |
4996 | case R_PPC_GOT_TLSLD16_HA: | |
25dbc73a AM |
4997 | case R_PPC_GOT_TLSGD16: |
4998 | case R_PPC_GOT_TLSGD16_LO: | |
4999 | case R_PPC_GOT_TLSGD16_HI: | |
5000 | case R_PPC_GOT_TLSGD16_HA: | |
5001 | case R_PPC_GOT_TPREL16: | |
5002 | case R_PPC_GOT_TPREL16_LO: | |
5003 | case R_PPC_GOT_TPREL16_HI: | |
5004 | case R_PPC_GOT_TPREL16_HA: | |
5005 | case R_PPC_GOT_DTPREL16: | |
5006 | case R_PPC_GOT_DTPREL16_LO: | |
5007 | case R_PPC_GOT_DTPREL16_HI: | |
5008 | case R_PPC_GOT_DTPREL16_HA: | |
5009 | case R_PPC_GOT16: | |
5010 | case R_PPC_GOT16_LO: | |
5011 | case R_PPC_GOT16_HI: | |
5012 | case R_PPC_GOT16_HA: | |
5013 | if (h != NULL) | |
ee05f2fe | 5014 | { |
25dbc73a AM |
5015 | if (h->got.refcount > 0) |
5016 | h->got.refcount--; | |
91e21fb7 AM |
5017 | if (!info->shared) |
5018 | { | |
5019 | struct plt_entry *ent; | |
5020 | ||
5021 | ent = find_plt_ent (&h->plt.plist, NULL, 0); | |
32af9f6e | 5022 | if (ent != NULL && ent->plt.refcount > 0) |
91e21fb7 AM |
5023 | ent->plt.refcount -= 1; |
5024 | } | |
ee05f2fe | 5025 | } |
25dbc73a AM |
5026 | else if (local_got_refcounts != NULL) |
5027 | { | |
5028 | if (local_got_refcounts[r_symndx] > 0) | |
5029 | local_got_refcounts[r_symndx]--; | |
5030 | } | |
5031 | break; | |
ee05f2fe | 5032 | |
25dbc73a AM |
5033 | case R_PPC_REL24: |
5034 | case R_PPC_REL14: | |
5035 | case R_PPC_REL14_BRTAKEN: | |
5036 | case R_PPC_REL14_BRNTAKEN: | |
5037 | case R_PPC_REL32: | |
3b36f7e6 | 5038 | if (h == NULL || h == htab->elf.hgot) |
25dbc73a AM |
5039 | break; |
5040 | /* Fall thru */ | |
ee05f2fe | 5041 | |
25dbc73a AM |
5042 | case R_PPC_ADDR32: |
5043 | case R_PPC_ADDR24: | |
5044 | case R_PPC_ADDR16: | |
5045 | case R_PPC_ADDR16_LO: | |
5046 | case R_PPC_ADDR16_HI: | |
5047 | case R_PPC_ADDR16_HA: | |
5048 | case R_PPC_ADDR14: | |
5049 | case R_PPC_ADDR14_BRTAKEN: | |
5050 | case R_PPC_ADDR14_BRNTAKEN: | |
5051 | case R_PPC_UADDR32: | |
5052 | case R_PPC_UADDR16: | |
87538722 AM |
5053 | if (info->shared) |
5054 | break; | |
5055 | ||
25dbc73a AM |
5056 | case R_PPC_PLT32: |
5057 | case R_PPC_PLTREL24: | |
87538722 | 5058 | case R_PPC_PLTREL32: |
25dbc73a AM |
5059 | case R_PPC_PLT16_LO: |
5060 | case R_PPC_PLT16_HI: | |
5061 | case R_PPC_PLT16_HA: | |
5062 | if (h != NULL) | |
5063 | { | |
a877a2b6 AM |
5064 | bfd_vma addend = 0; |
5065 | struct plt_entry *ent; | |
5066 | ||
5067 | if (r_type == R_PPC_PLTREL24 && info->shared) | |
5068 | addend = rel->r_addend; | |
5069 | ent = find_plt_ent (&h->plt.plist, got2, addend); | |
32af9f6e | 5070 | if (ent != NULL && ent->plt.refcount > 0) |
a6aa5195 | 5071 | ent->plt.refcount -= 1; |
25dbc73a AM |
5072 | } |
5073 | break; | |
ee05f2fe | 5074 | |
25dbc73a AM |
5075 | default: |
5076 | break; | |
5077 | } | |
7fce784e | 5078 | } |
7fce784e AS |
5079 | return TRUE; |
5080 | } | |
25dbc73a | 5081 | \f |
3a71aa26 AM |
5082 | /* Set plt output section type, htab->tls_get_addr, and call the |
5083 | generic ELF tls_setup function. */ | |
7fce784e | 5084 | |
25dbc73a | 5085 | asection * |
a7f2871e AM |
5086 | ppc_elf_tls_setup (bfd *obfd, |
5087 | struct bfd_link_info *info, | |
5088 | int no_tls_get_addr_opt) | |
7fce784e | 5089 | { |
25dbc73a | 5090 | struct ppc_elf_link_hash_table *htab; |
7fce784e | 5091 | |
25dbc73a | 5092 | htab = ppc_elf_hash_table (info); |
a7f2871e AM |
5093 | htab->tls_get_addr = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
5094 | FALSE, FALSE, TRUE); | |
5095 | if (!no_tls_get_addr_opt) | |
5096 | { | |
5097 | struct elf_link_hash_entry *opt, *tga; | |
5098 | opt = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
5099 | FALSE, FALSE, TRUE); | |
5100 | if (opt != NULL | |
5101 | && (opt->root.type == bfd_link_hash_defined | |
5102 | || opt->root.type == bfd_link_hash_defweak)) | |
5103 | { | |
5104 | /* If glibc supports an optimized __tls_get_addr call stub, | |
5105 | signalled by the presence of __tls_get_addr_opt, and we'll | |
5106 | be calling __tls_get_addr via a plt call stub, then | |
5107 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
5108 | tga = htab->tls_get_addr; | |
5109 | if (htab->elf.dynamic_sections_created | |
5110 | && tga != NULL | |
5111 | && (tga->type == STT_FUNC | |
5112 | || tga->needs_plt) | |
5113 | && !(SYMBOL_CALLS_LOCAL (info, tga) | |
5114 | || (ELF_ST_VISIBILITY (tga->other) != STV_DEFAULT | |
5115 | && tga->root.type == bfd_link_hash_undefweak))) | |
5116 | { | |
5117 | struct plt_entry *ent; | |
32af9f6e AM |
5118 | for (ent = tga->plt.plist; ent != NULL; ent = ent->next) |
5119 | if (ent->plt.refcount > 0) | |
5120 | break; | |
5121 | if (ent != NULL) | |
a7f2871e AM |
5122 | { |
5123 | tga->root.type = bfd_link_hash_indirect; | |
5124 | tga->root.u.i.link = &opt->root; | |
5125 | ppc_elf_copy_indirect_symbol (info, opt, tga); | |
5126 | if (opt->dynindx != -1) | |
5127 | { | |
5128 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
5129 | opt->dynindx = -1; | |
5130 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
5131 | opt->dynstr_index); | |
5132 | if (!bfd_elf_link_record_dynamic_symbol (info, opt)) | |
5133 | return FALSE; | |
5134 | } | |
5135 | htab->tls_get_addr = opt; | |
5136 | } | |
5137 | } | |
5138 | } | |
5139 | else | |
5140 | no_tls_get_addr_opt = TRUE; | |
5141 | } | |
5142 | htab->no_tls_get_addr_opt = no_tls_get_addr_opt; | |
4a3dc543 | 5143 | if (htab->plt_type == PLT_NEW |
d7128ce4 AM |
5144 | && htab->plt != NULL |
5145 | && htab->plt->output_section != NULL) | |
5146 | { | |
5147 | elf_section_type (htab->plt->output_section) = SHT_PROGBITS; | |
5148 | elf_section_flags (htab->plt->output_section) = SHF_ALLOC + SHF_WRITE; | |
5149 | } | |
5150 | ||
25dbc73a | 5151 | return _bfd_elf_tls_setup (obfd, info); |
7fce784e AS |
5152 | } |
5153 | ||
3a71aa26 AM |
5154 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
5155 | HASH. */ | |
5156 | ||
5157 | static bfd_boolean | |
5158 | branch_reloc_hash_match (const bfd *ibfd, | |
5159 | const Elf_Internal_Rela *rel, | |
5160 | const struct elf_link_hash_entry *hash) | |
5161 | { | |
5162 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
5163 | enum elf_ppc_reloc_type r_type = ELF32_R_TYPE (rel->r_info); | |
5164 | unsigned int r_symndx = ELF32_R_SYM (rel->r_info); | |
5165 | ||
e054468f | 5166 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
3a71aa26 AM |
5167 | { |
5168 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
5169 | struct elf_link_hash_entry *h; | |
5170 | ||
5171 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5172 | while (h->root.type == bfd_link_hash_indirect | |
5173 | || h->root.type == bfd_link_hash_warning) | |
5174 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5175 | if (h == hash) | |
5176 | return TRUE; | |
5177 | } | |
5178 | return FALSE; | |
5179 | } | |
5180 | ||
25dbc73a AM |
5181 | /* Run through all the TLS relocs looking for optimization |
5182 | opportunities. */ | |
252b5132 | 5183 | |
25dbc73a AM |
5184 | bfd_boolean |
5185 | ppc_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, | |
5186 | struct bfd_link_info *info) | |
252b5132 | 5187 | { |
7fce784e | 5188 | bfd *ibfd; |
25dbc73a AM |
5189 | asection *sec; |
5190 | struct ppc_elf_link_hash_table *htab; | |
b7fcf6f6 | 5191 | int pass; |
252b5132 | 5192 | |
1d483afe | 5193 | if (info->relocatable || !info->executable) |
25dbc73a | 5194 | return TRUE; |
252b5132 | 5195 | |
7619e7c7 | 5196 | htab = ppc_elf_hash_table (info); |
663a1470 AM |
5197 | if (htab == NULL) |
5198 | return FALSE; | |
5199 | ||
b7fcf6f6 AM |
5200 | /* Make two passes through the relocs. First time check that tls |
5201 | relocs involved in setting up a tls_get_addr call are indeed | |
663a1470 AM |
5202 | followed by such a call. If they are not, don't do any tls |
5203 | optimization. On the second pass twiddle tls_mask flags to | |
5204 | notify relocate_section that optimization can be done, and | |
5205 | adjust got and plt refcounts. */ | |
b7fcf6f6 AM |
5206 | for (pass = 0; pass < 2; ++pass) |
5207 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
5208 | { | |
5209 | Elf_Internal_Sym *locsyms = NULL; | |
0ffa91dd | 5210 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
32af9f6e | 5211 | asection *got2 = bfd_get_section_by_name (ibfd, ".got2"); |
7619e7c7 | 5212 | |
b7fcf6f6 AM |
5213 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
5214 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
5215 | { | |
5216 | Elf_Internal_Rela *relstart, *rel, *relend; | |
663a1470 | 5217 | int expecting_tls_get_addr = 0; |
252b5132 | 5218 | |
b7fcf6f6 AM |
5219 | /* Read the relocations. */ |
5220 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
5221 | info->keep_memory); | |
5222 | if (relstart == NULL) | |
5223 | return FALSE; | |
7619e7c7 | 5224 | |
b7fcf6f6 AM |
5225 | relend = relstart + sec->reloc_count; |
5226 | for (rel = relstart; rel < relend; rel++) | |
5227 | { | |
5228 | enum elf_ppc_reloc_type r_type; | |
5229 | unsigned long r_symndx; | |
5230 | struct elf_link_hash_entry *h = NULL; | |
5231 | char *tls_mask; | |
5232 | char tls_set, tls_clear; | |
5233 | bfd_boolean is_local; | |
b7fcf6f6 AM |
5234 | bfd_signed_vma *got_count; |
5235 | ||
5236 | r_symndx = ELF32_R_SYM (rel->r_info); | |
5237 | if (r_symndx >= symtab_hdr->sh_info) | |
5238 | { | |
5239 | struct elf_link_hash_entry **sym_hashes; | |
7fce784e | 5240 | |
b7fcf6f6 AM |
5241 | sym_hashes = elf_sym_hashes (ibfd); |
5242 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
5243 | while (h->root.type == bfd_link_hash_indirect | |
5244 | || h->root.type == bfd_link_hash_warning) | |
5245 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
5246 | } | |
7619e7c7 | 5247 | |
b7fcf6f6 AM |
5248 | is_local = FALSE; |
5249 | if (h == NULL | |
5250 | || !h->def_dynamic) | |
5251 | is_local = TRUE; | |
7619e7c7 | 5252 | |
b7fcf6f6 | 5253 | r_type = ELF32_R_TYPE (rel->r_info); |
663a1470 AM |
5254 | /* If this section has old-style __tls_get_addr calls |
5255 | without marker relocs, then check that each | |
5256 | __tls_get_addr call reloc is preceded by a reloc | |
5257 | that conceivably belongs to the __tls_get_addr arg | |
5258 | setup insn. If we don't find matching arg setup | |
5259 | relocs, don't do any tls optimization. */ | |
5260 | if (pass == 0 | |
5261 | && sec->has_tls_get_addr_call | |
5262 | && h != NULL | |
5263 | && h == htab->tls_get_addr | |
5264 | && !expecting_tls_get_addr | |
5265 | && is_branch_reloc (r_type)) | |
5266 | { | |
25f53a85 | 5267 | info->callbacks->minfo ("%H __tls_get_addr lost arg, " |
663a1470 AM |
5268 | "TLS optimization disabled\n", |
5269 | ibfd, sec, rel->r_offset); | |
5270 | if (elf_section_data (sec)->relocs != relstart) | |
5271 | free (relstart); | |
5272 | return TRUE; | |
5273 | } | |
5274 | ||
5275 | expecting_tls_get_addr = 0; | |
b7fcf6f6 AM |
5276 | switch (r_type) |
5277 | { | |
5278 | case R_PPC_GOT_TLSLD16: | |
5279 | case R_PPC_GOT_TLSLD16_LO: | |
5280 | expecting_tls_get_addr = 1; | |
5281 | /* Fall thru */ | |
5282 | ||
5283 | case R_PPC_GOT_TLSLD16_HI: | |
5284 | case R_PPC_GOT_TLSLD16_HA: | |
5285 | /* These relocs should never be against a symbol | |
5286 | defined in a shared lib. Leave them alone if | |
5287 | that turns out to be the case. */ | |
5288 | if (!is_local) | |
5289 | continue; | |
5290 | ||
5291 | /* LD -> LE */ | |
5292 | tls_set = 0; | |
5293 | tls_clear = TLS_LD; | |
5294 | break; | |
5295 | ||
5296 | case R_PPC_GOT_TLSGD16: | |
5297 | case R_PPC_GOT_TLSGD16_LO: | |
5298 | expecting_tls_get_addr = 1; | |
5299 | /* Fall thru */ | |
5300 | ||
5301 | case R_PPC_GOT_TLSGD16_HI: | |
5302 | case R_PPC_GOT_TLSGD16_HA: | |
5303 | if (is_local) | |
5304 | /* GD -> LE */ | |
5305 | tls_set = 0; | |
5306 | else | |
5307 | /* GD -> IE */ | |
5308 | tls_set = TLS_TLS | TLS_TPRELGD; | |
5309 | tls_clear = TLS_GD; | |
5310 | break; | |
5311 | ||
5312 | case R_PPC_GOT_TPREL16: | |
5313 | case R_PPC_GOT_TPREL16_LO: | |
5314 | case R_PPC_GOT_TPREL16_HI: | |
5315 | case R_PPC_GOT_TPREL16_HA: | |
5316 | if (is_local) | |
5317 | { | |
5318 | /* IE -> LE */ | |
5319 | tls_set = 0; | |
5320 | tls_clear = TLS_TPREL; | |
5321 | break; | |
5322 | } | |
5323 | else | |
5324 | continue; | |
5325 | ||
32af9f6e AM |
5326 | case R_PPC_TLSGD: |
5327 | case R_PPC_TLSLD: | |
5328 | expecting_tls_get_addr = 2; | |
5329 | tls_set = 0; | |
5330 | tls_clear = 0; | |
5331 | break; | |
5332 | ||
b7fcf6f6 | 5333 | default: |
25dbc73a | 5334 | continue; |
b7fcf6f6 | 5335 | } |
25dbc73a | 5336 | |
b7fcf6f6 AM |
5337 | if (pass == 0) |
5338 | { | |
727fc41e | 5339 | if (!expecting_tls_get_addr |
32af9f6e AM |
5340 | || (expecting_tls_get_addr == 1 |
5341 | && !sec->has_tls_get_addr_call)) | |
b7fcf6f6 | 5342 | continue; |
25dbc73a | 5343 | |
3a71aa26 AM |
5344 | if (rel + 1 < relend |
5345 | && branch_reloc_hash_match (ibfd, rel + 1, | |
5346 | htab->tls_get_addr)) | |
5347 | continue; | |
25dbc73a | 5348 | |
b7fcf6f6 AM |
5349 | /* Uh oh, we didn't find the expected call. We |
5350 | could just mark this symbol to exclude it | |
5351 | from tls optimization but it's safer to skip | |
663a1470 | 5352 | the entire optimization. */ |
25f53a85 | 5353 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
663a1470 AM |
5354 | "TLS optimization disabled\n"), |
5355 | ibfd, sec, rel->r_offset); | |
5356 | if (elf_section_data (sec)->relocs != relstart) | |
5357 | free (relstart); | |
5358 | return TRUE; | |
b7fcf6f6 | 5359 | } |
25dbc73a | 5360 | |
32af9f6e AM |
5361 | if (expecting_tls_get_addr) |
5362 | { | |
5363 | struct plt_entry *ent; | |
5364 | bfd_vma addend = 0; | |
5365 | ||
5366 | if (info->shared | |
5367 | && ELF32_R_TYPE (rel[1].r_info) == R_PPC_PLTREL24) | |
5368 | addend = rel[1].r_addend; | |
5369 | ent = find_plt_ent (&htab->tls_get_addr->plt.plist, | |
5370 | got2, addend); | |
5371 | if (ent != NULL && ent->plt.refcount > 0) | |
5372 | ent->plt.refcount -= 1; | |
5373 | ||
5374 | if (expecting_tls_get_addr == 2) | |
5375 | continue; | |
5376 | } | |
5377 | ||
b7fcf6f6 AM |
5378 | if (h != NULL) |
5379 | { | |
5380 | tls_mask = &ppc_elf_hash_entry (h)->tls_mask; | |
5381 | got_count = &h->got.refcount; | |
5382 | } | |
5383 | else | |
5384 | { | |
b7fcf6f6 | 5385 | bfd_signed_vma *lgot_refs; |
e054468f | 5386 | struct plt_entry **local_plt; |
b7fcf6f6 | 5387 | char *lgot_masks; |
25dbc73a | 5388 | |
b7fcf6f6 AM |
5389 | if (locsyms == NULL) |
5390 | { | |
5391 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5392 | if (locsyms == NULL) | |
5393 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
5394 | symtab_hdr->sh_info, | |
5395 | 0, NULL, NULL, NULL); | |
5396 | if (locsyms == NULL) | |
5397 | { | |
5398 | if (elf_section_data (sec)->relocs != relstart) | |
5399 | free (relstart); | |
5400 | return FALSE; | |
5401 | } | |
5402 | } | |
b7fcf6f6 AM |
5403 | lgot_refs = elf_local_got_refcounts (ibfd); |
5404 | if (lgot_refs == NULL) | |
5405 | abort (); | |
e054468f AM |
5406 | local_plt = (struct plt_entry **) |
5407 | (lgot_refs + symtab_hdr->sh_info); | |
5408 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
b7fcf6f6 AM |
5409 | tls_mask = &lgot_masks[r_symndx]; |
5410 | got_count = &lgot_refs[r_symndx]; | |
5411 | } | |
25dbc73a | 5412 | |
b7fcf6f6 AM |
5413 | if (tls_set == 0) |
5414 | { | |
5415 | /* We managed to get rid of a got entry. */ | |
5416 | if (*got_count > 0) | |
5417 | *got_count -= 1; | |
5418 | } | |
25dbc73a | 5419 | |
b7fcf6f6 AM |
5420 | *tls_mask |= tls_set; |
5421 | *tls_mask &= ~tls_clear; | |
5422 | } | |
25dbc73a | 5423 | |
b7fcf6f6 AM |
5424 | if (elf_section_data (sec)->relocs != relstart) |
5425 | free (relstart); | |
5426 | } | |
5427 | ||
5428 | if (locsyms != NULL | |
5429 | && (symtab_hdr->contents != (unsigned char *) locsyms)) | |
5430 | { | |
5431 | if (!info->keep_memory) | |
5432 | free (locsyms); | |
5433 | else | |
5434 | symtab_hdr->contents = (unsigned char *) locsyms; | |
5435 | } | |
5436 | } | |
25dbc73a AM |
5437 | return TRUE; |
5438 | } | |
5439 | \f | |
625af618 AM |
5440 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
5441 | ||
5442 | static bfd_boolean | |
5443 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
5444 | { | |
6061a67d | 5445 | struct elf_dyn_relocs *p; |
625af618 AM |
5446 | |
5447 | for (p = ppc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
5448 | { | |
5449 | asection *s = p->sec->output_section; | |
5450 | ||
5451 | if (s != NULL | |
5452 | && ((s->flags & (SEC_READONLY | SEC_ALLOC)) | |
5453 | == (SEC_READONLY | SEC_ALLOC))) | |
5454 | return TRUE; | |
5455 | } | |
5456 | return FALSE; | |
5457 | } | |
5458 | ||
25dbc73a AM |
5459 | /* Adjust a symbol defined by a dynamic object and referenced by a |
5460 | regular object. The current definition is in some section of the | |
5461 | dynamic object, but we're not including those sections. We have to | |
5462 | change the definition to something the rest of the link can | |
5463 | understand. */ | |
7fce784e | 5464 | |
25dbc73a AM |
5465 | static bfd_boolean |
5466 | ppc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
5467 | struct elf_link_hash_entry *h) | |
5468 | { | |
5469 | struct ppc_elf_link_hash_table *htab; | |
5470 | asection *s; | |
7fce784e | 5471 | |
25dbc73a AM |
5472 | #ifdef DEBUG |
5473 | fprintf (stderr, "ppc_elf_adjust_dynamic_symbol called for %s\n", | |
5474 | h->root.root.string); | |
5475 | #endif | |
252b5132 | 5476 | |
25dbc73a AM |
5477 | /* Make sure we know what is going on here. */ |
5478 | htab = ppc_elf_hash_table (info); | |
5479 | BFD_ASSERT (htab->elf.dynobj != NULL | |
5480 | && (h->needs_plt | |
91e21fb7 | 5481 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5482 | || h->u.weakdef != NULL |
5483 | || (h->def_dynamic | |
5484 | && h->ref_regular | |
5485 | && !h->def_regular))); | |
252b5132 | 5486 | |
25dbc73a AM |
5487 | /* Deal with function syms. */ |
5488 | if (h->type == STT_FUNC | |
e054468f | 5489 | || h->type == STT_GNU_IFUNC |
25dbc73a AM |
5490 | || h->needs_plt) |
5491 | { | |
5492 | /* Clear procedure linkage table information for any symbol that | |
5493 | won't need a .plt entry. */ | |
a6aa5195 AM |
5494 | struct plt_entry *ent; |
5495 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
5496 | if (ent->plt.refcount > 0) | |
5497 | break; | |
5498 | if (ent == NULL | |
e054468f AM |
5499 | || (h->type != STT_GNU_IFUNC |
5500 | && (SYMBOL_CALLS_LOCAL (info, h) | |
5501 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
5502 | && h->root.type == bfd_link_hash_undefweak)))) | |
252b5132 | 5503 | { |
25dbc73a | 5504 | /* A PLT entry is not required/allowed when: |
252b5132 | 5505 | |
25dbc73a AM |
5506 | 1. We are not using ld.so; because then the PLT entry |
5507 | can't be set up, so we can't use one. In this case, | |
5508 | ppc_elf_adjust_dynamic_symbol won't even be called. | |
252b5132 | 5509 | |
25dbc73a AM |
5510 | 2. GC has rendered the entry unused. |
5511 | ||
5512 | 3. We know for certain that a call to this symbol | |
5513 | will go to this object, or will remain undefined. */ | |
a6aa5195 | 5514 | h->plt.plist = NULL; |
25dbc73a AM |
5515 | h->needs_plt = 0; |
5516 | } | |
625af618 AM |
5517 | else |
5518 | { | |
25f23106 AM |
5519 | /* After adjust_dynamic_symbol, non_got_ref set in the |
5520 | non-shared case means that we have allocated space in | |
5521 | .dynbss for the symbol and thus dyn_relocs for this | |
5522 | symbol should be discarded. | |
625af618 AM |
5523 | If we get here we know we are making a PLT entry for this |
5524 | symbol, and in an executable we'd normally resolve | |
5525 | relocations against this symbol to the PLT entry. Allow | |
5526 | dynamic relocs if the reference is weak, and the dynamic | |
5527 | relocs will not cause text relocation. */ | |
5528 | if (!h->ref_regular_nonweak | |
5529 | && h->non_got_ref | |
25f23106 | 5530 | && h->type != STT_GNU_IFUNC |
625af618 AM |
5531 | && !htab->is_vxworks |
5532 | && !ppc_elf_hash_entry (h)->has_sda_refs | |
5533 | && !readonly_dynrelocs (h)) | |
5534 | h->non_got_ref = 0; | |
5535 | } | |
25dbc73a | 5536 | return TRUE; |
252b5132 | 5537 | } |
25dbc73a | 5538 | else |
a6aa5195 | 5539 | h->plt.plist = NULL; |
252b5132 | 5540 | |
25dbc73a AM |
5541 | /* If this is a weak symbol, and there is a real definition, the |
5542 | processor independent code will have arranged for us to see the | |
5543 | real definition first, and we can just use the same value. */ | |
5544 | if (h->u.weakdef != NULL) | |
252b5132 | 5545 | { |
25dbc73a AM |
5546 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
5547 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
5548 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
5549 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
5550 | if (ELIMINATE_COPY_RELOCS) | |
5551 | h->non_got_ref = h->u.weakdef->non_got_ref; | |
5552 | return TRUE; | |
5553 | } | |
dc810e39 | 5554 | |
25dbc73a AM |
5555 | /* This is a reference to a symbol defined by a dynamic object which |
5556 | is not a function. */ | |
252b5132 | 5557 | |
25dbc73a AM |
5558 | /* If we are creating a shared library, we must presume that the |
5559 | only references to the symbol are via the global offset table. | |
5560 | For such cases we need not do anything here; the relocations will | |
5561 | be handled correctly by relocate_section. */ | |
5562 | if (info->shared) | |
5563 | return TRUE; | |
252b5132 | 5564 | |
25dbc73a AM |
5565 | /* If there are no references to this symbol that do not use the |
5566 | GOT, we don't need to generate a copy reloc. */ | |
5567 | if (!h->non_got_ref) | |
5568 | return TRUE; | |
5569 | ||
cfd2c773 NS |
5570 | /* If we didn't find any dynamic relocs in read-only sections, then |
5571 | we'll be keeping the dynamic relocs and avoiding the copy reloc. | |
5572 | We can't do this if there are any small data relocations. This | |
5573 | doesn't work on VxWorks, where we can not have dynamic | |
5574 | relocations (other than copy and jump slot relocations) in an | |
5575 | executable. */ | |
4dc4a9a5 | 5576 | if (ELIMINATE_COPY_RELOCS |
cfd2c773 | 5577 | && !ppc_elf_hash_entry (h)->has_sda_refs |
625af618 AM |
5578 | && !htab->is_vxworks |
5579 | && !h->def_regular | |
5580 | && !readonly_dynrelocs (h)) | |
25dbc73a | 5581 | { |
625af618 AM |
5582 | h->non_got_ref = 0; |
5583 | return TRUE; | |
252b5132 RH |
5584 | } |
5585 | ||
25dbc73a AM |
5586 | /* We must allocate the symbol in our .dynbss section, which will |
5587 | become part of the .bss section of the executable. There will be | |
5588 | an entry for this symbol in the .dynsym section. The dynamic | |
5589 | object will contain position independent code, so all references | |
5590 | from the dynamic object to this symbol will go through the global | |
5591 | offset table. The dynamic linker will use the .dynsym entry to | |
5592 | determine the address it must put in the global offset table, so | |
5593 | both the dynamic object and the regular object will refer to the | |
5594 | same memory location for the variable. | |
5595 | ||
4dc4a9a5 DJ |
5596 | Of course, if the symbol is referenced using SDAREL relocs, we |
5597 | must instead allocate it in .sbss. */ | |
25dbc73a | 5598 | |
4dc4a9a5 | 5599 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5600 | s = htab->dynsbss; |
5601 | else | |
5602 | s = htab->dynbss; | |
5603 | BFD_ASSERT (s != NULL); | |
5604 | ||
5605 | /* We must generate a R_PPC_COPY reloc to tell the dynamic linker to | |
5606 | copy the initial value out of the dynamic object and into the | |
5607 | runtime process image. We need to remember the offset into the | |
5608 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 5609 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
25dbc73a AM |
5610 | { |
5611 | asection *srel; | |
5612 | ||
4dc4a9a5 | 5613 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
5614 | srel = htab->relsbss; |
5615 | else | |
5616 | srel = htab->relbss; | |
5617 | BFD_ASSERT (srel != NULL); | |
5618 | srel->size += sizeof (Elf32_External_Rela); | |
5619 | h->needs_copy = 1; | |
5620 | } | |
7619e7c7 | 5621 | |
027297b7 | 5622 | return _bfd_elf_adjust_dynamic_copy (h, s); |
25dbc73a AM |
5623 | } |
5624 | \f | |
ac39eb42 AM |
5625 | /* Generate a symbol to mark plt call stubs. For non-PIC code the sym is |
5626 | xxxxxxxx.plt_call32.<callee> where xxxxxxxx is a hex number, usually 0, | |
5627 | specifying the addend on the plt relocation. For -fpic code, the sym | |
5628 | is xxxxxxxx.plt_pic32.<callee>, and for -fPIC | |
5629 | xxxxxxxx.got2.plt_pic32.<callee>. */ | |
0ba07910 AM |
5630 | |
5631 | static bfd_boolean | |
5632 | add_stub_sym (struct plt_entry *ent, | |
5633 | struct elf_link_hash_entry *h, | |
ac39eb42 | 5634 | struct bfd_link_info *info) |
0ba07910 AM |
5635 | { |
5636 | struct elf_link_hash_entry *sh; | |
5637 | size_t len1, len2, len3; | |
5638 | char *name; | |
ac39eb42 AM |
5639 | const char *stub; |
5640 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
5641 | ||
a877a2b6 | 5642 | if (info->shared) |
ac39eb42 AM |
5643 | stub = ".plt_pic32."; |
5644 | else | |
5645 | stub = ".plt_call32."; | |
0ba07910 AM |
5646 | |
5647 | len1 = strlen (h->root.root.string); | |
ac39eb42 | 5648 | len2 = strlen (stub); |
0ba07910 AM |
5649 | len3 = 0; |
5650 | if (ent->sec) | |
5651 | len3 = strlen (ent->sec->name); | |
ac39eb42 | 5652 | name = bfd_malloc (len1 + len2 + len3 + 9); |
0ba07910 AM |
5653 | if (name == NULL) |
5654 | return FALSE; | |
5655 | sprintf (name, "%08x", (unsigned) ent->addend & 0xffffffff); | |
5656 | if (ent->sec) | |
5657 | memcpy (name + 8, ent->sec->name, len3); | |
ac39eb42 AM |
5658 | memcpy (name + 8 + len3, stub, len2); |
5659 | memcpy (name + 8 + len3 + len2, h->root.root.string, len1 + 1); | |
0ba07910 AM |
5660 | sh = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); |
5661 | if (sh == NULL) | |
5662 | return FALSE; | |
5663 | if (sh->root.type == bfd_link_hash_new) | |
5664 | { | |
5665 | sh->root.type = bfd_link_hash_defined; | |
5666 | sh->root.u.def.section = htab->glink; | |
5667 | sh->root.u.def.value = ent->glink_offset; | |
5668 | sh->ref_regular = 1; | |
5669 | sh->def_regular = 1; | |
5670 | sh->ref_regular_nonweak = 1; | |
5671 | sh->forced_local = 1; | |
5672 | sh->non_elf = 0; | |
5673 | } | |
5674 | return TRUE; | |
5675 | } | |
5676 | ||
3b36f7e6 AM |
5677 | /* Allocate NEED contiguous space in .got, and return the offset. |
5678 | Handles allocation of the got header when crossing 32k. */ | |
5679 | ||
5680 | static bfd_vma | |
5681 | allocate_got (struct ppc_elf_link_hash_table *htab, unsigned int need) | |
5682 | { | |
5683 | bfd_vma where; | |
4a3dc543 | 5684 | unsigned int max_before_header; |
3b36f7e6 | 5685 | |
4a3dc543 | 5686 | if (htab->plt_type == PLT_VXWORKS) |
9d8504b1 PB |
5687 | { |
5688 | where = htab->got->size; | |
5689 | htab->got->size += need; | |
5690 | } | |
3b36f7e6 AM |
5691 | else |
5692 | { | |
4a3dc543 RS |
5693 | max_before_header = htab->plt_type == PLT_NEW ? 32768 : 32764; |
5694 | if (need <= htab->got_gap) | |
3b36f7e6 | 5695 | { |
4a3dc543 RS |
5696 | where = max_before_header - htab->got_gap; |
5697 | htab->got_gap -= need; | |
5698 | } | |
5699 | else | |
5700 | { | |
5701 | if (htab->got->size + need > max_before_header | |
5702 | && htab->got->size <= max_before_header) | |
5703 | { | |
5704 | htab->got_gap = max_before_header - htab->got->size; | |
5705 | htab->got->size = max_before_header + htab->got_header_size; | |
5706 | } | |
5707 | where = htab->got->size; | |
5708 | htab->got->size += need; | |
3b36f7e6 | 5709 | } |
3b36f7e6 AM |
5710 | } |
5711 | return where; | |
5712 | } | |
5713 | ||
25dbc73a | 5714 | /* Allocate space in associated reloc sections for dynamic relocs. */ |
252b5132 | 5715 | |
b34976b6 | 5716 | static bfd_boolean |
25dbc73a | 5717 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
252b5132 | 5718 | { |
25dbc73a AM |
5719 | struct bfd_link_info *info = inf; |
5720 | struct ppc_elf_link_hash_entry *eh; | |
7619e7c7 | 5721 | struct ppc_elf_link_hash_table *htab; |
6061a67d | 5722 | struct elf_dyn_relocs *p; |
252b5132 | 5723 | |
25dbc73a | 5724 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 5725 | return TRUE; |
252b5132 | 5726 | |
7619e7c7 | 5727 | htab = ppc_elf_hash_table (info); |
e054468f AM |
5728 | if (htab->elf.dynamic_sections_created |
5729 | || h->type == STT_GNU_IFUNC) | |
252b5132 | 5730 | { |
a6aa5195 AM |
5731 | struct plt_entry *ent; |
5732 | bfd_boolean doneone = FALSE; | |
28e99bb6 | 5733 | bfd_vma plt_offset = 0, glink_offset = 0; |
e054468f | 5734 | bfd_boolean dyn; |
28e99bb6 | 5735 | |
a6aa5195 AM |
5736 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
5737 | if (ent->plt.refcount > 0) | |
5738 | { | |
5739 | /* Make sure this symbol is output as a dynamic symbol. */ | |
5740 | if (h->dynindx == -1 | |
e054468f AM |
5741 | && !h->forced_local |
5742 | && !h->def_regular | |
5743 | && htab->elf.dynamic_sections_created) | |
a6aa5195 AM |
5744 | { |
5745 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
5746 | return FALSE; | |
5747 | } | |
252b5132 | 5748 | |
e054468f | 5749 | dyn = htab->elf.dynamic_sections_created; |
a6aa5195 | 5750 | if (info->shared |
e054468f AM |
5751 | || h->type == STT_GNU_IFUNC |
5752 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) | |
a6aa5195 AM |
5753 | { |
5754 | asection *s = htab->plt; | |
25f23106 | 5755 | if (!dyn || h->dynindx == -1) |
e054468f | 5756 | s = htab->iplt; |
7619e7c7 | 5757 | |
25f23106 | 5758 | if (htab->plt_type == PLT_NEW || !dyn || h->dynindx == -1) |
a6aa5195 | 5759 | { |
a6aa5195 | 5760 | if (!doneone) |
28e99bb6 AM |
5761 | { |
5762 | plt_offset = s->size; | |
5763 | s->size += 4; | |
5764 | } | |
5765 | ent->plt.offset = plt_offset; | |
d7128ce4 | 5766 | |
a6aa5195 | 5767 | s = htab->glink; |
a877a2b6 | 5768 | if (!doneone || info->shared) |
28e99bb6 AM |
5769 | { |
5770 | glink_offset = s->size; | |
5771 | s->size += GLINK_ENTRY_SIZE; | |
a7f2871e AM |
5772 | if (h == htab->tls_get_addr |
5773 | && !htab->no_tls_get_addr_opt) | |
5774 | s->size += TLS_GET_ADDR_GLINK_SIZE - GLINK_ENTRY_SIZE; | |
28e99bb6 AM |
5775 | } |
5776 | if (!doneone | |
5777 | && !info->shared | |
625af618 | 5778 | && h->def_dynamic |
a6aa5195 AM |
5779 | && !h->def_regular) |
5780 | { | |
5781 | h->root.u.def.section = s; | |
28e99bb6 | 5782 | h->root.u.def.value = glink_offset; |
a6aa5195 | 5783 | } |
28e99bb6 | 5784 | ent->glink_offset = glink_offset; |
0ba07910 AM |
5785 | |
5786 | if (htab->emit_stub_syms | |
ac39eb42 | 5787 | && !add_stub_sym (ent, h, info)) |
0ba07910 | 5788 | return FALSE; |
a6aa5195 AM |
5789 | } |
5790 | else | |
5791 | { | |
a6aa5195 AM |
5792 | if (!doneone) |
5793 | { | |
28e99bb6 AM |
5794 | /* If this is the first .plt entry, make room |
5795 | for the special first entry. */ | |
5796 | if (s->size == 0) | |
9d8504b1 | 5797 | s->size += htab->plt_initial_entry_size; |
28e99bb6 AM |
5798 | |
5799 | /* The PowerPC PLT is actually composed of two | |
5800 | parts, the first part is 2 words (for a load | |
5801 | and a jump), and then there is a remaining | |
5802 | word available at the end. */ | |
9d8504b1 PB |
5803 | plt_offset = (htab->plt_initial_entry_size |
5804 | + (htab->plt_slot_size | |
5805 | * ((s->size | |
5806 | - htab->plt_initial_entry_size) | |
5807 | / htab->plt_entry_size))); | |
28e99bb6 AM |
5808 | |
5809 | /* If this symbol is not defined in a regular | |
5810 | file, and we are not generating a shared | |
5b914448 | 5811 | library, then set the symbol to this location |
de972ffa AM |
5812 | in the .plt. This is to avoid text |
5813 | relocations, and is required to make | |
28e99bb6 AM |
5814 | function pointers compare as equal between |
5815 | the normal executable and the shared library. */ | |
5816 | if (! info->shared | |
625af618 | 5817 | && h->def_dynamic |
28e99bb6 AM |
5818 | && !h->def_regular) |
5819 | { | |
5820 | h->root.u.def.section = s; | |
5821 | h->root.u.def.value = plt_offset; | |
5822 | } | |
5823 | ||
9d8504b1 PB |
5824 | /* Make room for this entry. */ |
5825 | s->size += htab->plt_entry_size; | |
5826 | /* After the 8192nd entry, room for two entries | |
5827 | is allocated. */ | |
4a3dc543 | 5828 | if (htab->plt_type == PLT_OLD |
9d8504b1 PB |
5829 | && (s->size - htab->plt_initial_entry_size) |
5830 | / htab->plt_entry_size | |
5831 | > PLT_NUM_SINGLE_ENTRIES) | |
5832 | s->size += htab->plt_entry_size; | |
a6aa5195 | 5833 | } |
28e99bb6 | 5834 | ent->plt.offset = plt_offset; |
a6aa5195 | 5835 | } |
25dbc73a | 5836 | |
a6aa5195 AM |
5837 | /* We also need to make an entry in the .rela.plt section. */ |
5838 | if (!doneone) | |
5839 | { | |
25f23106 AM |
5840 | if (!htab->elf.dynamic_sections_created |
5841 | || h->dynindx == -1) | |
e054468f AM |
5842 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
5843 | else | |
9d8504b1 | 5844 | { |
e054468f AM |
5845 | htab->relplt->size += sizeof (Elf32_External_Rela); |
5846 | ||
5847 | if (htab->plt_type == PLT_VXWORKS) | |
9d8504b1 | 5848 | { |
e054468f AM |
5849 | /* Allocate space for the unloaded relocations. */ |
5850 | if (!info->shared | |
5851 | && htab->elf.dynamic_sections_created) | |
9d8504b1 | 5852 | { |
e054468f AM |
5853 | if (ent->plt.offset |
5854 | == (bfd_vma) htab->plt_initial_entry_size) | |
5855 | { | |
5856 | htab->srelplt2->size | |
5857 | += (sizeof (Elf32_External_Rela) | |
5858 | * VXWORKS_PLTRESOLVE_RELOCS); | |
5859 | } | |
5860 | ||
9d8504b1 | 5861 | htab->srelplt2->size |
e054468f AM |
5862 | += (sizeof (Elf32_External_Rela) |
5863 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS); | |
9d8504b1 PB |
5864 | } |
5865 | ||
e054468f AM |
5866 | /* Every PLT entry has an associated GOT entry in |
5867 | .got.plt. */ | |
5868 | htab->sgotplt->size += 4; | |
9d8504b1 | 5869 | } |
9d8504b1 | 5870 | } |
a6aa5195 AM |
5871 | doneone = TRUE; |
5872 | } | |
5873 | } | |
5874 | else | |
5875 | ent->plt.offset = (bfd_vma) -1; | |
a6aa5195 | 5876 | } |
2ce859a1 AM |
5877 | else |
5878 | ent->plt.offset = (bfd_vma) -1; | |
5879 | ||
5880 | if (!doneone) | |
5881 | { | |
5882 | h->plt.plist = NULL; | |
5883 | h->needs_plt = 0; | |
5884 | } | |
25dbc73a AM |
5885 | } |
5886 | else | |
5887 | { | |
a6aa5195 | 5888 | h->plt.plist = NULL; |
25dbc73a AM |
5889 | h->needs_plt = 0; |
5890 | } | |
5891 | ||
5892 | eh = (struct ppc_elf_link_hash_entry *) h; | |
5893 | if (eh->elf.got.refcount > 0) | |
5894 | { | |
d6e14abc AM |
5895 | bfd_boolean dyn; |
5896 | unsigned int need; | |
5897 | ||
25dbc73a AM |
5898 | /* Make sure this symbol is output as a dynamic symbol. */ |
5899 | if (eh->elf.dynindx == -1 | |
b099ab9f | 5900 | && !eh->elf.forced_local |
25f23106 | 5901 | && eh->elf.type != STT_GNU_IFUNC |
b099ab9f | 5902 | && htab->elf.dynamic_sections_created) |
25dbc73a AM |
5903 | { |
5904 | if (!bfd_elf_link_record_dynamic_symbol (info, &eh->elf)) | |
b34976b6 | 5905 | return FALSE; |
25dbc73a | 5906 | } |
252b5132 | 5907 | |
d6e14abc AM |
5908 | need = 0; |
5909 | if ((eh->tls_mask & TLS_TLS) != 0) | |
25dbc73a | 5910 | { |
d6e14abc | 5911 | if ((eh->tls_mask & TLS_LD) != 0) |
252b5132 | 5912 | { |
d6e14abc AM |
5913 | if (!eh->elf.def_dynamic) |
5914 | /* We'll just use htab->tlsld_got.offset. This should | |
5915 | always be the case. It's a little odd if we have | |
5916 | a local dynamic reloc against a non-local symbol. */ | |
5917 | htab->tlsld_got.refcount += 1; | |
5918 | else | |
3b36f7e6 | 5919 | need += 8; |
252b5132 | 5920 | } |
d6e14abc AM |
5921 | if ((eh->tls_mask & TLS_GD) != 0) |
5922 | need += 8; | |
5923 | if ((eh->tls_mask & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
5924 | need += 4; | |
5925 | if ((eh->tls_mask & TLS_DTPREL) != 0) | |
3b36f7e6 | 5926 | need += 4; |
d6e14abc AM |
5927 | } |
5928 | else | |
5929 | need += 4; | |
5930 | if (need == 0) | |
5931 | eh->elf.got.offset = (bfd_vma) -1; | |
5932 | else | |
5933 | { | |
3b36f7e6 | 5934 | eh->elf.got.offset = allocate_got (htab, need); |
25dbc73a AM |
5935 | dyn = htab->elf.dynamic_sections_created; |
5936 | if ((info->shared | |
5937 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, &eh->elf)) | |
5938 | && (ELF_ST_VISIBILITY (eh->elf.other) == STV_DEFAULT | |
5939 | || eh->elf.root.type != bfd_link_hash_undefweak)) | |
252b5132 | 5940 | { |
91e21fb7 | 5941 | asection *rsec = htab->relgot; |
0bed072f AM |
5942 | |
5943 | if (eh->elf.type == STT_GNU_IFUNC) | |
5944 | rsec = htab->reliplt; | |
3b36f7e6 AM |
5945 | /* All the entries we allocated need relocs. |
5946 | Except LD only needs one. */ | |
d6e14abc AM |
5947 | if ((eh->tls_mask & TLS_LD) != 0 |
5948 | && eh->elf.def_dynamic) | |
3b36f7e6 | 5949 | need -= 4; |
25f23106 | 5950 | rsec->size += need * (sizeof (Elf32_External_Rela) / 4); |
252b5132 | 5951 | } |
25dbc73a AM |
5952 | } |
5953 | } | |
5954 | else | |
5955 | eh->elf.got.offset = (bfd_vma) -1; | |
252b5132 | 5956 | |
b099ab9f | 5957 | if (eh->dyn_relocs == NULL |
de972ffa | 5958 | || !htab->elf.dynamic_sections_created) |
25dbc73a | 5959 | return TRUE; |
252b5132 | 5960 | |
25dbc73a AM |
5961 | /* In the shared -Bsymbolic case, discard space allocated for |
5962 | dynamic pc-relative relocs against symbols which turn out to be | |
5963 | defined in regular objects. For the normal shared case, discard | |
5964 | space for relocs that have become local due to symbol visibility | |
5965 | changes. */ | |
5966 | ||
5967 | if (info->shared) | |
5968 | { | |
5969 | /* Relocs that use pc_count are those that appear on a call insn, | |
1d483afe | 5970 | or certain REL relocs (see must_be_dyn_reloc) that can be |
25dbc73a AM |
5971 | generated via assembly. We want calls to protected symbols to |
5972 | resolve directly to the function rather than going via the plt. | |
5973 | If people want function pointer comparisons to work as expected | |
5974 | then they should avoid writing weird assembly. */ | |
5975 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
5976 | { | |
6061a67d | 5977 | struct elf_dyn_relocs **pp; |
25dbc73a AM |
5978 | |
5979 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
252b5132 | 5980 | { |
25dbc73a AM |
5981 | p->count -= p->pc_count; |
5982 | p->pc_count = 0; | |
5983 | if (p->count == 0) | |
5984 | *pp = p->next; | |
5985 | else | |
5986 | pp = &p->next; | |
252b5132 | 5987 | } |
25dbc73a | 5988 | } |
252b5132 | 5989 | |
3348747a NS |
5990 | if (htab->is_vxworks) |
5991 | { | |
6061a67d | 5992 | struct elf_dyn_relocs **pp; |
3348747a NS |
5993 | |
5994 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
5995 | { | |
5996 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
5997 | *pp = p->next; | |
5998 | else | |
5999 | pp = &p->next; | |
6000 | } | |
6001 | } | |
6002 | ||
89200bf8 AM |
6003 | /* Discard relocs on undefined symbols that must be local. */ |
6004 | if (eh->dyn_relocs != NULL | |
6005 | && h->root.type == bfd_link_hash_undefined | |
6006 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
6007 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
6008 | eh->dyn_relocs = NULL; | |
6009 | ||
25dbc73a AM |
6010 | /* Also discard relocs on undefined weak syms with non-default |
6011 | visibility. */ | |
cab87ef9 AM |
6012 | if (eh->dyn_relocs != NULL |
6013 | && h->root.type == bfd_link_hash_undefweak) | |
25dbc73a | 6014 | { |
dfbb6ac9 AM |
6015 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
6016 | eh->dyn_relocs = NULL; | |
6017 | ||
6018 | /* Make sure undefined weak symbols are output as a dynamic | |
6019 | symbol in PIEs. */ | |
6020 | else if (h->dynindx == -1 | |
e054468f AM |
6021 | && !h->forced_local |
6022 | && !h->def_regular) | |
dfbb6ac9 AM |
6023 | { |
6024 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6025 | return FALSE; | |
6026 | } | |
25dbc73a AM |
6027 | } |
6028 | } | |
6029 | else if (ELIMINATE_COPY_RELOCS) | |
6030 | { | |
6031 | /* For the non-shared case, discard space for relocs against | |
6032 | symbols which turn out to need copy relocs or are not | |
6033 | dynamic. */ | |
7619e7c7 | 6034 | |
25dbc73a | 6035 | if (!h->non_got_ref |
25dbc73a AM |
6036 | && !h->def_regular) |
6037 | { | |
6038 | /* Make sure this symbol is output as a dynamic symbol. | |
6039 | Undefined weak syms won't yet be marked as dynamic. */ | |
6040 | if (h->dynindx == -1 | |
25f23106 | 6041 | && !h->forced_local) |
25dbc73a AM |
6042 | { |
6043 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
6044 | return FALSE; | |
6045 | } | |
7619e7c7 | 6046 | |
25dbc73a AM |
6047 | /* If that succeeded, we know we'll be keeping all the |
6048 | relocs. */ | |
6049 | if (h->dynindx != -1) | |
6050 | goto keep; | |
6051 | } | |
252b5132 | 6052 | |
25dbc73a | 6053 | eh->dyn_relocs = NULL; |
252b5132 | 6054 | |
25dbc73a AM |
6055 | keep: ; |
6056 | } | |
252b5132 | 6057 | |
25dbc73a AM |
6058 | /* Finally, allocate space. */ |
6059 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
6060 | { | |
6061 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
f95f8542 | 6062 | if (eh->elf.type == STT_GNU_IFUNC) |
25f23106 | 6063 | sreloc = htab->reliplt; |
25dbc73a AM |
6064 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
6065 | } | |
252b5132 | 6066 | |
25dbc73a AM |
6067 | return TRUE; |
6068 | } | |
7619e7c7 | 6069 | |
625af618 AM |
6070 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
6071 | read-only sections. */ | |
7619e7c7 | 6072 | |
25dbc73a | 6073 | static bfd_boolean |
625af618 | 6074 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) |
25dbc73a | 6075 | { |
25dbc73a AM |
6076 | if (h->root.type == bfd_link_hash_indirect) |
6077 | return TRUE; | |
252b5132 | 6078 | |
625af618 | 6079 | if (readonly_dynrelocs (h)) |
25dbc73a | 6080 | { |
625af618 | 6081 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; |
ee05f2fe | 6082 | |
625af618 AM |
6083 | /* Not an error, just cut short the traversal. */ |
6084 | return FALSE; | |
25dbc73a AM |
6085 | } |
6086 | return TRUE; | |
6087 | } | |
6088 | ||
6177242a AM |
6089 | static const unsigned char glink_eh_frame_cie[] = |
6090 | { | |
6091 | 0, 0, 0, 16, /* length. */ | |
6092 | 0, 0, 0, 0, /* id. */ | |
6093 | 1, /* CIE version. */ | |
6094 | 'z', 'R', 0, /* Augmentation string. */ | |
6095 | 4, /* Code alignment. */ | |
6096 | 0x7c, /* Data alignment. */ | |
6097 | 65, /* RA reg. */ | |
6098 | 1, /* Augmentation size. */ | |
6099 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
6100 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ | |
6101 | }; | |
6102 | ||
25dbc73a AM |
6103 | /* Set the sizes of the dynamic sections. */ |
6104 | ||
6105 | static bfd_boolean | |
6106 | ppc_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
6107 | struct bfd_link_info *info) | |
6108 | { | |
6109 | struct ppc_elf_link_hash_table *htab; | |
6110 | asection *s; | |
6111 | bfd_boolean relocs; | |
6112 | bfd *ibfd; | |
7fce784e | 6113 | |
252b5132 | 6114 | #ifdef DEBUG |
25dbc73a | 6115 | fprintf (stderr, "ppc_elf_size_dynamic_sections called\n"); |
252b5132 | 6116 | #endif |
252b5132 | 6117 | |
25dbc73a AM |
6118 | htab = ppc_elf_hash_table (info); |
6119 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
252b5132 | 6120 | |
25dbc73a AM |
6121 | if (elf_hash_table (info)->dynamic_sections_created) |
6122 | { | |
6123 | /* Set the contents of the .interp section to the interpreter. */ | |
6124 | if (info->executable) | |
6125 | { | |
3d4d4302 | 6126 | s = bfd_get_linker_section (htab->elf.dynobj, ".interp"); |
25dbc73a AM |
6127 | BFD_ASSERT (s != NULL); |
6128 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
6129 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
6130 | } | |
6131 | } | |
252b5132 | 6132 | |
4a3dc543 | 6133 | if (htab->plt_type == PLT_OLD) |
d7128ce4 | 6134 | htab->got_header_size = 16; |
4a3dc543 | 6135 | else if (htab->plt_type == PLT_NEW) |
d7128ce4 | 6136 | htab->got_header_size = 12; |
252b5132 | 6137 | |
25dbc73a AM |
6138 | /* Set up .got offsets for local syms, and space for local dynamic |
6139 | relocs. */ | |
6140 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
6141 | { | |
6142 | bfd_signed_vma *local_got; | |
6143 | bfd_signed_vma *end_local_got; | |
e054468f AM |
6144 | struct plt_entry **local_plt; |
6145 | struct plt_entry **end_local_plt; | |
25dbc73a AM |
6146 | char *lgot_masks; |
6147 | bfd_size_type locsymcount; | |
6148 | Elf_Internal_Shdr *symtab_hdr; | |
7fce784e | 6149 | |
0c8d6e5c | 6150 | if (!is_ppc_elf (ibfd)) |
25dbc73a | 6151 | continue; |
7fce784e | 6152 | |
25dbc73a AM |
6153 | for (s = ibfd->sections; s != NULL; s = s->next) |
6154 | { | |
f95f8542 | 6155 | struct ppc_dyn_relocs *p; |
252b5132 | 6156 | |
f95f8542 | 6157 | for (p = ((struct ppc_dyn_relocs *) |
25dbc73a AM |
6158 | elf_section_data (s)->local_dynrel); |
6159 | p != NULL; | |
6160 | p = p->next) | |
6161 | { | |
6162 | if (!bfd_is_abs_section (p->sec) | |
6163 | && bfd_is_abs_section (p->sec->output_section)) | |
6164 | { | |
6165 | /* Input section has been discarded, either because | |
6166 | it is a copy of a linkonce section or due to | |
6167 | linker script /DISCARD/, so we'll be discarding | |
6168 | the relocs too. */ | |
7fce784e | 6169 | } |
3348747a NS |
6170 | else if (htab->is_vxworks |
6171 | && strcmp (p->sec->output_section->name, | |
6172 | ".tls_vars") == 0) | |
6173 | { | |
6174 | /* Relocations in vxworks .tls_vars sections are | |
6175 | handled specially by the loader. */ | |
6176 | } | |
25dbc73a | 6177 | else if (p->count != 0) |
7fce784e | 6178 | { |
25f23106 | 6179 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
f95f8542 | 6180 | if (p->ifunc) |
25f23106 AM |
6181 | sreloc = htab->reliplt; |
6182 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
25dbc73a AM |
6183 | if ((p->sec->output_section->flags |
6184 | & (SEC_READONLY | SEC_ALLOC)) | |
6185 | == (SEC_READONLY | SEC_ALLOC)) | |
6186 | info->flags |= DF_TEXTREL; | |
7fce784e | 6187 | } |
252b5132 | 6188 | } |
252b5132 | 6189 | } |
252b5132 | 6190 | |
25dbc73a AM |
6191 | local_got = elf_local_got_refcounts (ibfd); |
6192 | if (!local_got) | |
6193 | continue; | |
252b5132 | 6194 | |
0ffa91dd | 6195 | symtab_hdr = &elf_symtab_hdr (ibfd); |
25dbc73a AM |
6196 | locsymcount = symtab_hdr->sh_info; |
6197 | end_local_got = local_got + locsymcount; | |
e054468f AM |
6198 | local_plt = (struct plt_entry **) end_local_got; |
6199 | end_local_plt = local_plt + locsymcount; | |
6200 | lgot_masks = (char *) end_local_plt; | |
91d6fa6a | 6201 | |
25dbc73a AM |
6202 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
6203 | if (*local_got > 0) | |
6204 | { | |
d6e14abc AM |
6205 | unsigned int need = 0; |
6206 | if ((*lgot_masks & TLS_TLS) != 0) | |
25dbc73a | 6207 | { |
d6e14abc AM |
6208 | if ((*lgot_masks & TLS_GD) != 0) |
6209 | need += 8; | |
6210 | if ((*lgot_masks & TLS_LD) != 0) | |
6211 | htab->tlsld_got.refcount += 1; | |
6212 | if ((*lgot_masks & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
6213 | need += 4; | |
6214 | if ((*lgot_masks & TLS_DTPREL) != 0) | |
6215 | need += 4; | |
25dbc73a | 6216 | } |
d6e14abc AM |
6217 | else |
6218 | need += 4; | |
6219 | if (need == 0) | |
6220 | *local_got = (bfd_vma) -1; | |
25dbc73a AM |
6221 | else |
6222 | { | |
3b36f7e6 | 6223 | *local_got = allocate_got (htab, need); |
25dbc73a | 6224 | if (info->shared) |
0bed072f AM |
6225 | { |
6226 | asection *srel = htab->relgot; | |
6227 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
6228 | srel = htab->reliplt; | |
6229 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); | |
6230 | } | |
25dbc73a AM |
6231 | } |
6232 | } | |
6233 | else | |
6234 | *local_got = (bfd_vma) -1; | |
e054468f AM |
6235 | |
6236 | if (htab->is_vxworks) | |
6237 | continue; | |
6238 | ||
6239 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
6240 | for (; local_plt < end_local_plt; ++local_plt) | |
6241 | { | |
6242 | struct plt_entry *ent; | |
6243 | bfd_boolean doneone = FALSE; | |
6244 | bfd_vma plt_offset = 0, glink_offset = 0; | |
6245 | ||
6246 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
6247 | if (ent->plt.refcount > 0) | |
6248 | { | |
91d6fa6a | 6249 | s = htab->iplt; |
e054468f AM |
6250 | |
6251 | if (!doneone) | |
6252 | { | |
6253 | plt_offset = s->size; | |
6254 | s->size += 4; | |
6255 | } | |
6256 | ent->plt.offset = plt_offset; | |
6257 | ||
6258 | s = htab->glink; | |
a877a2b6 | 6259 | if (!doneone || info->shared) |
e054468f AM |
6260 | { |
6261 | glink_offset = s->size; | |
6262 | s->size += GLINK_ENTRY_SIZE; | |
6263 | } | |
6264 | ent->glink_offset = glink_offset; | |
6265 | ||
6266 | if (!doneone) | |
6267 | { | |
25f23106 | 6268 | htab->reliplt->size += sizeof (Elf32_External_Rela); |
e054468f AM |
6269 | doneone = TRUE; |
6270 | } | |
6271 | } | |
6272 | else | |
6273 | ent->plt.offset = (bfd_vma) -1; | |
6274 | } | |
25dbc73a | 6275 | } |
252b5132 | 6276 | |
b7fcf6f6 AM |
6277 | /* Allocate space for global sym dynamic relocs. */ |
6278 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
6279 | ||
3b36f7e6 AM |
6280 | if (htab->tlsld_got.refcount > 0) |
6281 | { | |
6282 | htab->tlsld_got.offset = allocate_got (htab, 8); | |
6283 | if (info->shared) | |
6284 | htab->relgot->size += sizeof (Elf32_External_Rela); | |
6285 | } | |
6286 | else | |
6287 | htab->tlsld_got.offset = (bfd_vma) -1; | |
6288 | ||
4a3dc543 | 6289 | if (htab->got != NULL && htab->plt_type != PLT_VXWORKS) |
3b36f7e6 AM |
6290 | { |
6291 | unsigned int g_o_t = 32768; | |
6292 | ||
4d962050 AM |
6293 | /* If we haven't allocated the header, do so now. When we get here, |
6294 | for old plt/got the got size will be 0 to 32764 (not allocated), | |
6295 | or 32780 to 65536 (header allocated). For new plt/got, the | |
6296 | corresponding ranges are 0 to 32768 and 32780 to 65536. */ | |
3b36f7e6 AM |
6297 | if (htab->got->size <= 32768) |
6298 | { | |
6299 | g_o_t = htab->got->size; | |
4a3dc543 | 6300 | if (htab->plt_type == PLT_OLD) |
4d962050 | 6301 | g_o_t += 4; |
3b36f7e6 AM |
6302 | htab->got->size += htab->got_header_size; |
6303 | } | |
3b36f7e6 AM |
6304 | |
6305 | htab->elf.hgot->root.u.def.value = g_o_t; | |
6306 | } | |
bd6c6e2b AM |
6307 | if (info->shared) |
6308 | { | |
6309 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; | |
6310 | if (sda != NULL | |
6311 | && !(sda->root.type == bfd_link_hash_defined | |
6312 | || sda->root.type == bfd_link_hash_defweak)) | |
6313 | { | |
6314 | sda->root.type = bfd_link_hash_defined; | |
6315 | sda->root.u.def.section = htab->elf.hgot->root.u.def.section; | |
6316 | sda->root.u.def.value = htab->elf.hgot->root.u.def.value; | |
6317 | } | |
6318 | } | |
3b36f7e6 | 6319 | |
e054468f AM |
6320 | if (htab->glink != NULL |
6321 | && htab->glink->size != 0 | |
6322 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
6323 | { |
6324 | htab->glink_pltresolve = htab->glink->size; | |
86b9da88 AM |
6325 | /* Space for the branch table. */ |
6326 | htab->glink->size += htab->glink->size / (GLINK_ENTRY_SIZE / 4) - 4; | |
6327 | /* Pad out to align the start of PLTresolve. */ | |
6328 | htab->glink->size += -htab->glink->size & 15; | |
d7128ce4 | 6329 | htab->glink->size += GLINK_PLTRESOLVE; |
0ba07910 AM |
6330 | |
6331 | if (htab->emit_stub_syms) | |
6332 | { | |
6333 | struct elf_link_hash_entry *sh; | |
6334 | sh = elf_link_hash_lookup (&htab->elf, "__glink", | |
6335 | TRUE, FALSE, FALSE); | |
6336 | if (sh == NULL) | |
6337 | return FALSE; | |
6338 | if (sh->root.type == bfd_link_hash_new) | |
6339 | { | |
6340 | sh->root.type = bfd_link_hash_defined; | |
6341 | sh->root.u.def.section = htab->glink; | |
6342 | sh->root.u.def.value = htab->glink_pltresolve; | |
6343 | sh->ref_regular = 1; | |
6344 | sh->def_regular = 1; | |
6345 | sh->ref_regular_nonweak = 1; | |
6346 | sh->forced_local = 1; | |
6347 | sh->non_elf = 0; | |
6348 | } | |
6349 | sh = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", | |
6350 | TRUE, FALSE, FALSE); | |
6351 | if (sh == NULL) | |
6352 | return FALSE; | |
6353 | if (sh->root.type == bfd_link_hash_new) | |
6354 | { | |
6355 | sh->root.type = bfd_link_hash_defined; | |
6356 | sh->root.u.def.section = htab->glink; | |
6357 | sh->root.u.def.value = htab->glink->size - GLINK_PLTRESOLVE; | |
6358 | sh->ref_regular = 1; | |
6359 | sh->def_regular = 1; | |
6360 | sh->ref_regular_nonweak = 1; | |
6361 | sh->forced_local = 1; | |
6362 | sh->non_elf = 0; | |
6363 | } | |
6364 | } | |
d7128ce4 AM |
6365 | } |
6366 | ||
6177242a AM |
6367 | if (htab->glink != NULL |
6368 | && htab->glink->size != 0 | |
6369 | && htab->glink_eh_frame != NULL | |
9a2a56cc AM |
6370 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) |
6371 | && _bfd_elf_eh_frame_present (info)) | |
6177242a AM |
6372 | { |
6373 | s = htab->glink_eh_frame; | |
6374 | s->size = sizeof (glink_eh_frame_cie) + 20; | |
6375 | if (info->shared) | |
6376 | { | |
6377 | s->size += 4; | |
6378 | if (htab->glink->size - GLINK_PLTRESOLVE + 8 >= 256) | |
6379 | s->size += 4; | |
6380 | } | |
6381 | } | |
6382 | ||
25dbc73a AM |
6383 | /* We've now determined the sizes of the various dynamic sections. |
6384 | Allocate memory for them. */ | |
6385 | relocs = FALSE; | |
6386 | for (s = htab->elf.dynobj->sections; s != NULL; s = s->next) | |
252b5132 | 6387 | { |
9d8504b1 PB |
6388 | bfd_boolean strip_section = TRUE; |
6389 | ||
25dbc73a AM |
6390 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
6391 | continue; | |
252b5132 | 6392 | |
25dbc73a | 6393 | if (s == htab->plt |
e054468f | 6394 | || s == htab->got) |
25dbc73a | 6395 | { |
9d8504b1 PB |
6396 | /* We'd like to strip these sections if they aren't needed, but if |
6397 | we've exported dynamic symbols from them we must leave them. | |
6398 | It's too late to tell BFD to get rid of the symbols. */ | |
e054468f | 6399 | if (htab->elf.hplt != NULL) |
9d8504b1 | 6400 | strip_section = FALSE; |
25dbc73a AM |
6401 | /* Strip this section if we don't need it; see the |
6402 | comment below. */ | |
6403 | } | |
e054468f AM |
6404 | else if (s == htab->iplt |
6405 | || s == htab->glink | |
6177242a | 6406 | || s == htab->glink_eh_frame |
e054468f AM |
6407 | || s == htab->sgotplt |
6408 | || s == htab->sbss | |
6409 | || s == htab->dynbss | |
6410 | || s == htab->dynsbss | |
6411 | || s == htab->sdata[0].section | |
c9a2f333 | 6412 | || s == htab->sdata[1].section) |
25dbc73a | 6413 | { |
c9a2f333 | 6414 | /* Strip these too. */ |
25dbc73a | 6415 | } |
a0f49396 NC |
6416 | else if (CONST_STRNEQ (bfd_get_section_name (htab->elf.dynobj, s), |
6417 | ".rela")) | |
25dbc73a | 6418 | { |
c456f082 | 6419 | if (s->size != 0) |
25dbc73a AM |
6420 | { |
6421 | /* Remember whether there are any relocation sections. */ | |
6422 | relocs = TRUE; | |
252b5132 | 6423 | |
25dbc73a AM |
6424 | /* We use the reloc_count field as a counter if we need |
6425 | to copy relocs into the output file. */ | |
6426 | s->reloc_count = 0; | |
252b5132 RH |
6427 | } |
6428 | } | |
25dbc73a AM |
6429 | else |
6430 | { | |
6431 | /* It's not one of our sections, so don't allocate space. */ | |
6432 | continue; | |
6433 | } | |
252b5132 | 6434 | |
9d8504b1 | 6435 | if (s->size == 0 && strip_section) |
25dbc73a | 6436 | { |
c456f082 AM |
6437 | /* If we don't need this section, strip it from the |
6438 | output file. This is mostly to handle .rela.bss and | |
6439 | .rela.plt. We must create both sections in | |
6440 | create_dynamic_sections, because they must be created | |
6441 | before the linker maps input sections to output | |
6442 | sections. The linker does that before | |
6443 | adjust_dynamic_symbol is called, and it is that | |
6444 | function which decides whether anything needs to go | |
6445 | into these sections. */ | |
8423293d | 6446 | s->flags |= SEC_EXCLUDE; |
25dbc73a AM |
6447 | continue; |
6448 | } | |
7fce784e | 6449 | |
d7128ce4 | 6450 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
644285ef AM |
6451 | continue; |
6452 | ||
25dbc73a AM |
6453 | /* Allocate memory for the section contents. */ |
6454 | s->contents = bfd_zalloc (htab->elf.dynobj, s->size); | |
6455 | if (s->contents == NULL) | |
6456 | return FALSE; | |
6457 | } | |
252b5132 | 6458 | |
25dbc73a | 6459 | if (htab->elf.dynamic_sections_created) |
7619e7c7 | 6460 | { |
25dbc73a AM |
6461 | /* Add some entries to the .dynamic section. We fill in the |
6462 | values later, in ppc_elf_finish_dynamic_sections, but we | |
6463 | must add the entries now so that we get the correct size for | |
6464 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
6465 | dynamic linker and used by the debugger. */ | |
6466 | #define add_dynamic_entry(TAG, VAL) \ | |
6467 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
252b5132 | 6468 | |
25dbc73a | 6469 | if (info->executable) |
7619e7c7 | 6470 | { |
25dbc73a AM |
6471 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
6472 | return FALSE; | |
7619e7c7 AM |
6473 | } |
6474 | ||
25dbc73a | 6475 | if (htab->plt != NULL && htab->plt->size != 0) |
7619e7c7 | 6476 | { |
25dbc73a AM |
6477 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
6478 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
6479 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
6480 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
6481 | return FALSE; | |
6482 | } | |
7619e7c7 | 6483 | |
d7128ce4 AM |
6484 | if (htab->glink != NULL && htab->glink->size != 0) |
6485 | { | |
1fe44d79 | 6486 | if (!add_dynamic_entry (DT_PPC_GOT, 0)) |
d7128ce4 | 6487 | return FALSE; |
a7f2871e AM |
6488 | if (!htab->no_tls_get_addr_opt |
6489 | && htab->tls_get_addr != NULL | |
6490 | && htab->tls_get_addr->plt.plist != NULL | |
e8910a83 | 6491 | && !add_dynamic_entry (DT_PPC_OPT, PPC_OPT_TLS)) |
a7f2871e | 6492 | return FALSE; |
d7128ce4 AM |
6493 | } |
6494 | ||
25dbc73a AM |
6495 | if (relocs) |
6496 | { | |
6497 | if (!add_dynamic_entry (DT_RELA, 0) | |
6498 | || !add_dynamic_entry (DT_RELASZ, 0) | |
6499 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
6500 | return FALSE; | |
6501 | } | |
7619e7c7 | 6502 | |
25dbc73a AM |
6503 | /* If any dynamic relocs apply to a read-only section, then we |
6504 | need a DT_TEXTREL entry. */ | |
6505 | if ((info->flags & DF_TEXTREL) == 0) | |
625af618 | 6506 | elf_link_hash_traverse (elf_hash_table (info), maybe_set_textrel, |
25dbc73a | 6507 | info); |
7619e7c7 | 6508 | |
25dbc73a AM |
6509 | if ((info->flags & DF_TEXTREL) != 0) |
6510 | { | |
6511 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
6512 | return FALSE; | |
7619e7c7 | 6513 | } |
7a2b07ff NS |
6514 | if (htab->is_vxworks |
6515 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
6516 | return FALSE; | |
6517 | } | |
25dbc73a AM |
6518 | #undef add_dynamic_entry |
6519 | ||
7e01508c AM |
6520 | if (htab->glink_eh_frame != NULL |
6521 | && htab->glink_eh_frame->contents != NULL) | |
6522 | { | |
6523 | unsigned char *p = htab->glink_eh_frame->contents; | |
6524 | bfd_vma val; | |
6525 | ||
6526 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
6527 | /* CIE length (rewrite in case little-endian). */ | |
6528 | bfd_put_32 (htab->elf.dynobj, sizeof (glink_eh_frame_cie) - 4, p); | |
6529 | p += sizeof (glink_eh_frame_cie); | |
6530 | /* FDE length. */ | |
6531 | val = htab->glink_eh_frame->size - 4 - sizeof (glink_eh_frame_cie); | |
6532 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6533 | p += 4; | |
6534 | /* CIE pointer. */ | |
6535 | val = p - htab->glink_eh_frame->contents; | |
6536 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6537 | p += 4; | |
6538 | /* Offset to .glink. Set later. */ | |
6539 | p += 4; | |
6540 | /* .glink size. */ | |
6541 | bfd_put_32 (htab->elf.dynobj, htab->glink->size, p); | |
6542 | p += 4; | |
6543 | /* Augmentation. */ | |
6544 | p += 1; | |
6545 | ||
6546 | if (info->shared | |
6547 | && htab->elf.dynamic_sections_created) | |
6548 | { | |
6549 | bfd_vma adv = (htab->glink->size - GLINK_PLTRESOLVE + 8) >> 2; | |
6550 | if (adv < 64) | |
6551 | *p++ = DW_CFA_advance_loc + adv; | |
6552 | else if (adv < 256) | |
6553 | { | |
6554 | *p++ = DW_CFA_advance_loc1; | |
6555 | *p++ = adv; | |
6556 | } | |
6557 | else if (adv < 65536) | |
6558 | { | |
6559 | *p++ = DW_CFA_advance_loc2; | |
6560 | bfd_put_16 (htab->elf.dynobj, adv, p); | |
6561 | p += 2; | |
6562 | } | |
6563 | else | |
6564 | { | |
6565 | *p++ = DW_CFA_advance_loc4; | |
6566 | bfd_put_32 (htab->elf.dynobj, adv, p); | |
6567 | p += 4; | |
6568 | } | |
6569 | *p++ = DW_CFA_register; | |
6570 | *p++ = 65; | |
6571 | p++; | |
6572 | *p++ = DW_CFA_advance_loc + 4; | |
6573 | *p++ = DW_CFA_restore_extended; | |
6574 | *p++ = 65; | |
6575 | } | |
6576 | BFD_ASSERT ((bfd_vma) ((p + 3 - htab->glink_eh_frame->contents) & -4) | |
6577 | == htab->glink_eh_frame->size); | |
6578 | } | |
6579 | ||
7619e7c7 AM |
6580 | return TRUE; |
6581 | } | |
0eb4a168 AM |
6582 | |
6583 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ | |
6584 | ||
6585 | static bfd_boolean | |
6586 | ppc_elf_hash_symbol (struct elf_link_hash_entry *h) | |
6587 | { | |
6588 | if (h->plt.plist != NULL | |
6589 | && !h->def_regular | |
6590 | && (!h->pointer_equality_needed | |
6591 | || !h->ref_regular_nonweak)) | |
6592 | return FALSE; | |
6593 | ||
6594 | return _bfd_elf_hash_symbol (h); | |
6595 | } | |
25dbc73a AM |
6596 | \f |
6597 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
6598 | ||
01017ef8 NS |
6599 | /* Relaxation trampolines. r12 is available for clobbering (r11, is |
6600 | used for some functions that are allowed to break the ABI). */ | |
25dbc73a AM |
6601 | static const int shared_stub_entry[] = |
6602 | { | |
6603 | 0x7c0802a6, /* mflr 0 */ | |
6604 | 0x429f0005, /* bcl 20, 31, .Lxxx */ | |
01017ef8 NS |
6605 | 0x7d8802a6, /* mflr 12 */ |
6606 | 0x3d8c0000, /* addis 12, 12, (xxx-.Lxxx)@ha */ | |
6607 | 0x398c0008, /* addi 12, 12, (xxx-.Lxxx)@l */ | |
25dbc73a | 6608 | 0x7c0803a6, /* mtlr 0 */ |
01017ef8 | 6609 | 0x7d8903a6, /* mtctr 12 */ |
25dbc73a AM |
6610 | 0x4e800420, /* bctr */ |
6611 | }; | |
6612 | ||
6613 | static const int stub_entry[] = | |
6614 | { | |
01017ef8 NS |
6615 | 0x3d800000, /* lis 12,xxx@ha */ |
6616 | 0x398c0000, /* addi 12,12,xxx@l */ | |
6617 | 0x7d8903a6, /* mtctr 12 */ | |
25dbc73a AM |
6618 | 0x4e800420, /* bctr */ |
6619 | }; | |
6620 | ||
6621 | static bfd_boolean | |
6622 | ppc_elf_relax_section (bfd *abfd, | |
6623 | asection *isec, | |
6624 | struct bfd_link_info *link_info, | |
6625 | bfd_boolean *again) | |
6626 | { | |
6627 | struct one_fixup | |
6628 | { | |
6629 | struct one_fixup *next; | |
6630 | asection *tsec; | |
01017ef8 NS |
6631 | /* Final link, can use the symbol offset. For a |
6632 | relocatable link we use the symbol's index. */ | |
25dbc73a AM |
6633 | bfd_vma toff; |
6634 | bfd_vma trampoff; | |
6635 | }; | |
7619e7c7 | 6636 | |
25dbc73a AM |
6637 | Elf_Internal_Shdr *symtab_hdr; |
6638 | bfd_byte *contents = NULL; | |
6639 | Elf_Internal_Sym *isymbuf = NULL; | |
6640 | Elf_Internal_Rela *internal_relocs = NULL; | |
6641 | Elf_Internal_Rela *irel, *irelend; | |
6642 | struct one_fixup *fixups = NULL; | |
9bc4e62b | 6643 | unsigned changes = 0; |
d7128ce4 | 6644 | struct ppc_elf_link_hash_table *htab; |
25dbc73a | 6645 | bfd_size_type trampoff; |
a6aa5195 | 6646 | asection *got2; |
50248c89 | 6647 | bfd_boolean maybe_pasted; |
7619e7c7 | 6648 | |
25dbc73a | 6649 | *again = FALSE; |
7619e7c7 | 6650 | |
c87b5a93 | 6651 | /* Nothing to do if there are no relocations, and no need to do |
a8ad78a7 | 6652 | anything with non-alloc or non-code sections. */ |
c87b5a93 | 6653 | if ((isec->flags & SEC_ALLOC) == 0 |
a8ad78a7 | 6654 | || (isec->flags & SEC_CODE) == 0 |
c87b5a93 AM |
6655 | || (isec->flags & SEC_RELOC) == 0 |
6656 | || isec->reloc_count == 0) | |
25dbc73a | 6657 | return TRUE; |
7619e7c7 | 6658 | |
c8a1f254 NS |
6659 | /* We cannot represent the required PIC relocs in the output, so don't |
6660 | do anything. The linker doesn't support mixing -shared and -r | |
6661 | anyway. */ | |
6662 | if (link_info->relocatable && link_info->shared) | |
6663 | return TRUE; | |
5b914448 | 6664 | |
25dbc73a | 6665 | trampoff = (isec->size + 3) & (bfd_vma) -4; |
50248c89 AM |
6666 | maybe_pasted = (strcmp (isec->output_section->name, ".init") == 0 |
6667 | || strcmp (isec->output_section->name, ".fini") == 0); | |
25dbc73a | 6668 | /* Space for a branch around any trampolines. */ |
50248c89 AM |
6669 | if (maybe_pasted) |
6670 | trampoff += 4; | |
7619e7c7 | 6671 | |
0ffa91dd | 6672 | symtab_hdr = &elf_symtab_hdr (abfd); |
7619e7c7 | 6673 | |
25dbc73a AM |
6674 | /* Get a copy of the native relocations. */ |
6675 | internal_relocs = _bfd_elf_link_read_relocs (abfd, isec, NULL, NULL, | |
6676 | link_info->keep_memory); | |
6677 | if (internal_relocs == NULL) | |
6678 | goto error_return; | |
7619e7c7 | 6679 | |
d7128ce4 | 6680 | htab = ppc_elf_hash_table (link_info); |
a6aa5195 | 6681 | got2 = bfd_get_section_by_name (abfd, ".got2"); |
7619e7c7 | 6682 | |
a6aa5195 | 6683 | irelend = internal_relocs + isec->reloc_count; |
25dbc73a | 6684 | for (irel = internal_relocs; irel < irelend; irel++) |
7619e7c7 | 6685 | { |
25dbc73a | 6686 | unsigned long r_type = ELF32_R_TYPE (irel->r_info); |
91d6fa6a | 6687 | bfd_vma toff, roff; |
25dbc73a AM |
6688 | asection *tsec; |
6689 | struct one_fixup *f; | |
6690 | size_t insn_offset = 0; | |
6691 | bfd_vma max_branch_offset, val; | |
6692 | bfd_byte *hit_addr; | |
6693 | unsigned long t0; | |
de972ffa | 6694 | struct elf_link_hash_entry *h; |
a9585d22 | 6695 | struct plt_entry **plist; |
25dbc73a | 6696 | unsigned char sym_type; |
7619e7c7 | 6697 | |
25dbc73a AM |
6698 | switch (r_type) |
6699 | { | |
6700 | case R_PPC_REL24: | |
6701 | case R_PPC_LOCAL24PC: | |
6702 | case R_PPC_PLTREL24: | |
6703 | max_branch_offset = 1 << 25; | |
6704 | break; | |
7619e7c7 | 6705 | |
25dbc73a AM |
6706 | case R_PPC_REL14: |
6707 | case R_PPC_REL14_BRTAKEN: | |
6708 | case R_PPC_REL14_BRNTAKEN: | |
6709 | max_branch_offset = 1 << 15; | |
6710 | break; | |
7619e7c7 | 6711 | |
25dbc73a AM |
6712 | default: |
6713 | continue; | |
6714 | } | |
7619e7c7 | 6715 | |
25dbc73a | 6716 | /* Get the value of the symbol referred to by the reloc. */ |
de972ffa | 6717 | h = NULL; |
25dbc73a AM |
6718 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
6719 | { | |
6720 | /* A local symbol. */ | |
6721 | Elf_Internal_Sym *isym; | |
7fce784e | 6722 | |
25dbc73a AM |
6723 | /* Read this BFD's local symbols. */ |
6724 | if (isymbuf == NULL) | |
6725 | { | |
6726 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
6727 | if (isymbuf == NULL) | |
6728 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
6729 | symtab_hdr->sh_info, 0, | |
6730 | NULL, NULL, NULL); | |
6731 | if (isymbuf == 0) | |
6732 | goto error_return; | |
6733 | } | |
6734 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
6735 | if (isym->st_shndx == SHN_UNDEF) | |
c8a1f254 | 6736 | tsec = bfd_und_section_ptr; |
25dbc73a AM |
6737 | else if (isym->st_shndx == SHN_ABS) |
6738 | tsec = bfd_abs_section_ptr; | |
6739 | else if (isym->st_shndx == SHN_COMMON) | |
6740 | tsec = bfd_com_section_ptr; | |
6741 | else | |
6742 | tsec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
7fce784e | 6743 | |
25dbc73a AM |
6744 | toff = isym->st_value; |
6745 | sym_type = ELF_ST_TYPE (isym->st_info); | |
6746 | } | |
6747 | else | |
6748 | { | |
6749 | /* Global symbol handling. */ | |
6750 | unsigned long indx; | |
7619e7c7 | 6751 | |
25dbc73a AM |
6752 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
6753 | h = elf_sym_hashes (abfd)[indx]; | |
7619e7c7 | 6754 | |
25dbc73a AM |
6755 | while (h->root.type == bfd_link_hash_indirect |
6756 | || h->root.type == bfd_link_hash_warning) | |
6757 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
7619e7c7 | 6758 | |
a9585d22 AM |
6759 | if (h->root.type == bfd_link_hash_defined |
6760 | || h->root.type == bfd_link_hash_defweak) | |
25dbc73a AM |
6761 | { |
6762 | tsec = h->root.u.def.section; | |
6763 | toff = h->root.u.def.value; | |
6764 | } | |
c8a1f254 NS |
6765 | else if (h->root.type == bfd_link_hash_undefined |
6766 | || h->root.type == bfd_link_hash_undefweak) | |
6767 | { | |
6768 | tsec = bfd_und_section_ptr; | |
01017ef8 | 6769 | toff = link_info->relocatable ? indx : 0; |
c8a1f254 | 6770 | } |
25dbc73a AM |
6771 | else |
6772 | continue; | |
7619e7c7 | 6773 | |
25dbc73a AM |
6774 | sym_type = h->type; |
6775 | } | |
7619e7c7 | 6776 | |
a9585d22 AM |
6777 | /* The condition here under which we call find_plt_ent must |
6778 | match that in relocate_section. If we call find_plt_ent here | |
6779 | but not in relocate_section, or vice versa, then the branch | |
6780 | destination used here may be incorrect. */ | |
6781 | plist = NULL; | |
6782 | if (h != NULL) | |
de972ffa | 6783 | { |
a9585d22 AM |
6784 | /* We know is_branch_reloc (r_type) is true. */ |
6785 | if (h->type == STT_GNU_IFUNC | |
6786 | || r_type == R_PPC_PLTREL24) | |
de972ffa | 6787 | plist = &h->plt.plist; |
a9585d22 AM |
6788 | } |
6789 | else if (sym_type == STT_GNU_IFUNC | |
6790 | && elf_local_got_offsets (abfd) != NULL) | |
6791 | { | |
6792 | bfd_vma *local_got_offsets = elf_local_got_offsets (abfd); | |
6793 | struct plt_entry **local_plt = (struct plt_entry **) | |
6794 | (local_got_offsets + symtab_hdr->sh_info); | |
6795 | plist = local_plt + ELF32_R_SYM (irel->r_info); | |
6796 | } | |
6797 | if (plist != NULL) | |
6798 | { | |
6799 | bfd_vma addend = 0; | |
6800 | struct plt_entry *ent; | |
de972ffa | 6801 | |
a9585d22 AM |
6802 | if (r_type == R_PPC_PLTREL24 && link_info->shared) |
6803 | addend = irel->r_addend; | |
6804 | ent = find_plt_ent (plist, got2, addend); | |
6805 | if (ent != NULL) | |
6806 | { | |
6807 | if (htab->plt_type == PLT_NEW | |
6808 | || h == NULL | |
6809 | || !htab->elf.dynamic_sections_created | |
6810 | || h->dynindx == -1) | |
de972ffa | 6811 | { |
a9585d22 AM |
6812 | tsec = htab->glink; |
6813 | toff = ent->glink_offset; | |
6814 | } | |
6815 | else | |
6816 | { | |
6817 | tsec = htab->plt; | |
6818 | toff = ent->plt.offset; | |
de972ffa AM |
6819 | } |
6820 | } | |
6821 | } | |
6822 | ||
25dbc73a AM |
6823 | /* If the branch and target are in the same section, you have |
6824 | no hope of adding stubs. We'll error out later should the | |
6825 | branch overflow. */ | |
6826 | if (tsec == isec) | |
6827 | continue; | |
6828 | ||
6829 | /* There probably isn't any reason to handle symbols in | |
6830 | SEC_MERGE sections; SEC_MERGE doesn't seem a likely | |
6831 | attribute for a code section, and we are only looking at | |
6832 | branches. However, implement it correctly here as a | |
6833 | reference for other target relax_section functions. */ | |
dbaa2011 | 6834 | if (0 && tsec->sec_info_type == SEC_INFO_TYPE_MERGE) |
25dbc73a AM |
6835 | { |
6836 | /* At this stage in linking, no SEC_MERGE symbol has been | |
6837 | adjusted, so all references to such symbols need to be | |
6838 | passed through _bfd_merged_section_offset. (Later, in | |
6839 | relocate_section, all SEC_MERGE symbols *except* for | |
6840 | section symbols have been adjusted.) | |
6841 | ||
6842 | gas may reduce relocations against symbols in SEC_MERGE | |
6843 | sections to a relocation against the section symbol when | |
6844 | the original addend was zero. When the reloc is against | |
6845 | a section symbol we should include the addend in the | |
6846 | offset passed to _bfd_merged_section_offset, since the | |
6847 | location of interest is the original symbol. On the | |
6848 | other hand, an access to "sym+addend" where "sym" is not | |
6849 | a section symbol should not include the addend; Such an | |
6850 | access is presumed to be an offset from "sym"; The | |
6851 | location of interest is just "sym". */ | |
6852 | if (sym_type == STT_SECTION) | |
6853 | toff += irel->r_addend; | |
7619e7c7 | 6854 | |
25dbc73a AM |
6855 | toff = _bfd_merged_section_offset (abfd, &tsec, |
6856 | elf_section_data (tsec)->sec_info, | |
6857 | toff); | |
7619e7c7 | 6858 | |
25dbc73a AM |
6859 | if (sym_type != STT_SECTION) |
6860 | toff += irel->r_addend; | |
6861 | } | |
a6aa5195 AM |
6862 | /* PLTREL24 addends are special. */ |
6863 | else if (r_type != R_PPC_PLTREL24) | |
25dbc73a | 6864 | toff += irel->r_addend; |
7619e7c7 | 6865 | |
7de713b9 AM |
6866 | /* Attempted -shared link of non-pic code loses. */ |
6867 | if (tsec->output_section == NULL) | |
6868 | continue; | |
6869 | ||
25dbc73a | 6870 | roff = irel->r_offset; |
7619e7c7 | 6871 | |
25dbc73a | 6872 | /* If the branch is in range, no need to do anything. */ |
c8a1f254 NS |
6873 | if (tsec != bfd_und_section_ptr |
6874 | && (!link_info->relocatable | |
6875 | /* A relocatable link may have sections moved during | |
6876 | final link, so do not presume they remain in range. */ | |
01017ef8 NS |
6877 | || tsec->output_section == isec->output_section)) |
6878 | { | |
6879 | bfd_vma symaddr, reladdr; | |
6880 | ||
6881 | symaddr = tsec->output_section->vma + tsec->output_offset + toff; | |
6882 | reladdr = isec->output_section->vma + isec->output_offset + roff; | |
6883 | if (symaddr - reladdr + max_branch_offset < 2 * max_branch_offset) | |
6884 | continue; | |
6885 | } | |
252b5132 | 6886 | |
25dbc73a AM |
6887 | /* Look for an existing fixup to this address. */ |
6888 | for (f = fixups; f ; f = f->next) | |
6889 | if (f->tsec == tsec && f->toff == toff) | |
6890 | break; | |
6891 | ||
6892 | if (f == NULL) | |
7619e7c7 | 6893 | { |
25dbc73a AM |
6894 | size_t size; |
6895 | unsigned long stub_rtype; | |
252b5132 | 6896 | |
25dbc73a AM |
6897 | val = trampoff - roff; |
6898 | if (val >= max_branch_offset) | |
6899 | /* Oh dear, we can't reach a trampoline. Don't try to add | |
6900 | one. We'll report an error later. */ | |
6901 | continue; | |
252b5132 | 6902 | |
25dbc73a AM |
6903 | if (link_info->shared) |
6904 | { | |
6905 | size = 4 * ARRAY_SIZE (shared_stub_entry); | |
6906 | insn_offset = 12; | |
25dbc73a AM |
6907 | } |
6908 | else | |
6909 | { | |
6910 | size = 4 * ARRAY_SIZE (stub_entry); | |
6911 | insn_offset = 0; | |
25dbc73a | 6912 | } |
32af9f6e | 6913 | stub_rtype = R_PPC_RELAX; |
d7128ce4 AM |
6914 | if (tsec == htab->plt |
6915 | || tsec == htab->glink) | |
32af9f6e AM |
6916 | { |
6917 | stub_rtype = R_PPC_RELAX_PLT; | |
6918 | if (r_type == R_PPC_PLTREL24) | |
6919 | stub_rtype = R_PPC_RELAX_PLTREL24; | |
6920 | } | |
252b5132 | 6921 | |
25dbc73a AM |
6922 | /* Hijack the old relocation. Since we need two |
6923 | relocations for this use a "composite" reloc. */ | |
6924 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
6925 | stub_rtype); | |
6926 | irel->r_offset = trampoff + insn_offset; | |
32af9f6e AM |
6927 | if (r_type == R_PPC_PLTREL24 |
6928 | && stub_rtype != R_PPC_RELAX_PLTREL24) | |
e7d92e2e | 6929 | irel->r_addend = 0; |
252b5132 | 6930 | |
25dbc73a AM |
6931 | /* Record the fixup so we don't do it again this section. */ |
6932 | f = bfd_malloc (sizeof (*f)); | |
6933 | f->next = fixups; | |
6934 | f->tsec = tsec; | |
6935 | f->toff = toff; | |
6936 | f->trampoff = trampoff; | |
6937 | fixups = f; | |
252b5132 | 6938 | |
25dbc73a | 6939 | trampoff += size; |
9bc4e62b | 6940 | changes++; |
25dbc73a AM |
6941 | } |
6942 | else | |
6943 | { | |
6944 | val = f->trampoff - roff; | |
6945 | if (val >= max_branch_offset) | |
6946 | continue; | |
252b5132 | 6947 | |
25dbc73a AM |
6948 | /* Nop out the reloc, since we're finalizing things here. */ |
6949 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
6950 | } | |
252b5132 | 6951 | |
25dbc73a AM |
6952 | /* Get the section contents. */ |
6953 | if (contents == NULL) | |
6954 | { | |
6955 | /* Get cached copy if it exists. */ | |
6956 | if (elf_section_data (isec)->this_hdr.contents != NULL) | |
6957 | contents = elf_section_data (isec)->this_hdr.contents; | |
6958 | else | |
6959 | { | |
6960 | /* Go get them off disk. */ | |
6961 | if (!bfd_malloc_and_get_section (abfd, isec, &contents)) | |
6962 | goto error_return; | |
6963 | } | |
6964 | } | |
252b5132 | 6965 | |
25dbc73a AM |
6966 | /* Fix up the existing branch to hit the trampoline. */ |
6967 | hit_addr = contents + roff; | |
6968 | switch (r_type) | |
6969 | { | |
6970 | case R_PPC_REL24: | |
6971 | case R_PPC_LOCAL24PC: | |
6972 | case R_PPC_PLTREL24: | |
6973 | t0 = bfd_get_32 (abfd, hit_addr); | |
6974 | t0 &= ~0x3fffffc; | |
6975 | t0 |= val & 0x3fffffc; | |
6976 | bfd_put_32 (abfd, t0, hit_addr); | |
6977 | break; | |
252b5132 | 6978 | |
25dbc73a AM |
6979 | case R_PPC_REL14: |
6980 | case R_PPC_REL14_BRTAKEN: | |
6981 | case R_PPC_REL14_BRNTAKEN: | |
6982 | t0 = bfd_get_32 (abfd, hit_addr); | |
6983 | t0 &= ~0xfffc; | |
6984 | t0 |= val & 0xfffc; | |
6985 | bfd_put_32 (abfd, t0, hit_addr); | |
6986 | break; | |
6987 | } | |
6988 | } | |
252b5132 | 6989 | |
25dbc73a | 6990 | /* Write out the trampolines. */ |
25dbc73a AM |
6991 | if (fixups != NULL) |
6992 | { | |
6993 | const int *stub; | |
6994 | bfd_byte *dest; | |
25dbc73a | 6995 | int i, size; |
252b5132 | 6996 | |
25dbc73a AM |
6997 | do |
6998 | { | |
6999 | struct one_fixup *f = fixups; | |
7000 | fixups = fixups->next; | |
7001 | free (f); | |
7002 | } | |
7003 | while (fixups); | |
252b5132 | 7004 | |
515ef31d | 7005 | contents = bfd_realloc_or_free (contents, trampoff); |
25dbc73a AM |
7006 | if (contents == NULL) |
7007 | goto error_return; | |
252b5132 | 7008 | |
25dbc73a | 7009 | isec->size = (isec->size + 3) & (bfd_vma) -4; |
25dbc73a | 7010 | dest = contents + isec->size; |
50248c89 AM |
7011 | /* Branch around the trampolines. */ |
7012 | if (maybe_pasted) | |
7013 | { | |
7014 | bfd_vma val = B + trampoff - isec->size; | |
7015 | bfd_put_32 (abfd, val, dest); | |
7016 | dest += 4; | |
7017 | } | |
25dbc73a | 7018 | isec->size = trampoff; |
252b5132 | 7019 | |
25dbc73a AM |
7020 | if (link_info->shared) |
7021 | { | |
7022 | stub = shared_stub_entry; | |
7023 | size = ARRAY_SIZE (shared_stub_entry); | |
7024 | } | |
7025 | else | |
7026 | { | |
7027 | stub = stub_entry; | |
7028 | size = ARRAY_SIZE (stub_entry); | |
7029 | } | |
252b5132 | 7030 | |
25dbc73a AM |
7031 | i = 0; |
7032 | while (dest < contents + trampoff) | |
252b5132 | 7033 | { |
25dbc73a AM |
7034 | bfd_put_32 (abfd, stub[i], dest); |
7035 | i++; | |
7036 | if (i == size) | |
7037 | i = 0; | |
7038 | dest += 4; | |
252b5132 | 7039 | } |
25dbc73a | 7040 | BFD_ASSERT (i == 0); |
252b5132 RH |
7041 | } |
7042 | ||
25dbc73a AM |
7043 | if (isymbuf != NULL |
7044 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 | 7045 | { |
25dbc73a AM |
7046 | if (! link_info->keep_memory) |
7047 | free (isymbuf); | |
252b5132 | 7048 | else |
25dbc73a AM |
7049 | { |
7050 | /* Cache the symbols for elf_link_input_bfd. */ | |
7051 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
7052 | } | |
252b5132 RH |
7053 | } |
7054 | ||
25dbc73a AM |
7055 | if (contents != NULL |
7056 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7057 | { | |
9bc4e62b | 7058 | if (!changes && !link_info->keep_memory) |
25dbc73a AM |
7059 | free (contents); |
7060 | else | |
7061 | { | |
7062 | /* Cache the section contents for elf_link_input_bfd. */ | |
7063 | elf_section_data (isec)->this_hdr.contents = contents; | |
7064 | } | |
7065 | } | |
252b5132 | 7066 | |
9bc4e62b | 7067 | if (changes != 0) |
25dbc73a | 7068 | { |
9bc4e62b NS |
7069 | /* Append sufficient NOP relocs so we can write out relocation |
7070 | information for the trampolines. */ | |
d4730f92 | 7071 | Elf_Internal_Shdr *rel_hdr; |
9bc4e62b NS |
7072 | Elf_Internal_Rela *new_relocs = bfd_malloc ((changes + isec->reloc_count) |
7073 | * sizeof (*new_relocs)); | |
7074 | unsigned ix; | |
5b914448 | 7075 | |
9bc4e62b NS |
7076 | if (!new_relocs) |
7077 | goto error_return; | |
7078 | memcpy (new_relocs, internal_relocs, | |
7079 | isec->reloc_count * sizeof (*new_relocs)); | |
7080 | for (ix = changes; ix--;) | |
7081 | { | |
7082 | irel = new_relocs + ix + isec->reloc_count; | |
7083 | ||
7084 | irel->r_info = ELF32_R_INFO (0, R_PPC_NONE); | |
7085 | } | |
7086 | if (internal_relocs != elf_section_data (isec)->relocs) | |
25dbc73a | 7087 | free (internal_relocs); |
9bc4e62b NS |
7088 | elf_section_data (isec)->relocs = new_relocs; |
7089 | isec->reloc_count += changes; | |
d4730f92 BS |
7090 | rel_hdr = _bfd_elf_single_rel_hdr (isec); |
7091 | rel_hdr->sh_size += changes * rel_hdr->sh_entsize; | |
25dbc73a | 7092 | } |
9bc4e62b NS |
7093 | else if (elf_section_data (isec)->relocs != internal_relocs) |
7094 | free (internal_relocs); | |
252b5132 | 7095 | |
9bc4e62b | 7096 | *again = changes != 0; |
c8a1f254 NS |
7097 | if (!*again && link_info->relocatable) |
7098 | { | |
7099 | /* Convert the internal relax relocs to external form. */ | |
7100 | for (irel = internal_relocs; irel < irelend; irel++) | |
32af9f6e | 7101 | if (ELF32_R_TYPE (irel->r_info) == R_PPC_RELAX) |
c8a1f254 NS |
7102 | { |
7103 | unsigned long r_symndx = ELF32_R_SYM (irel->r_info); | |
7104 | ||
7105 | /* Rewrite the reloc and convert one of the trailing nop | |
7106 | relocs to describe this relocation. */ | |
7107 | BFD_ASSERT (ELF32_R_TYPE (irelend[-1].r_info) == R_PPC_NONE); | |
7108 | /* The relocs are at the bottom 2 bytes */ | |
7109 | irel[0].r_offset += 2; | |
7110 | memmove (irel + 1, irel, (irelend - irel - 1) * sizeof (*irel)); | |
7111 | irel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
7112 | irel[1].r_offset += 4; | |
7113 | irel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
7114 | irel++; | |
7115 | } | |
7116 | } | |
5b914448 | 7117 | |
b34976b6 | 7118 | return TRUE; |
25dbc73a AM |
7119 | |
7120 | error_return: | |
7121 | if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents) | |
7122 | free (isymbuf); | |
7123 | if (contents != NULL | |
7124 | && elf_section_data (isec)->this_hdr.contents != contents) | |
7125 | free (contents); | |
7126 | if (internal_relocs != NULL | |
7127 | && elf_section_data (isec)->relocs != internal_relocs) | |
7128 | free (internal_relocs); | |
7129 | return FALSE; | |
252b5132 | 7130 | } |
252b5132 | 7131 | \f |
8a696751 AM |
7132 | /* What to do when ld finds relocations against symbols defined in |
7133 | discarded sections. */ | |
7134 | ||
7135 | static unsigned int | |
7136 | ppc_elf_action_discarded (asection *sec) | |
7137 | { | |
7138 | if (strcmp (".fixup", sec->name) == 0) | |
7139 | return 0; | |
7140 | ||
7141 | if (strcmp (".got2", sec->name) == 0) | |
7142 | return 0; | |
7143 | ||
7144 | return _bfd_elf_default_action_discarded (sec); | |
7145 | } | |
c9a2f333 | 7146 | \f |
25dbc73a | 7147 | /* Fill in the address for a pointer generated in a linker section. */ |
252b5132 | 7148 | |
25dbc73a | 7149 | static bfd_vma |
76750a2f | 7150 | elf_finish_pointer_linker_section (bfd *input_bfd, |
25dbc73a AM |
7151 | elf_linker_section_t *lsect, |
7152 | struct elf_link_hash_entry *h, | |
7153 | bfd_vma relocation, | |
2bb04cf2 | 7154 | const Elf_Internal_Rela *rel) |
25dbc73a AM |
7155 | { |
7156 | elf_linker_section_pointers_t *linker_section_ptr; | |
252b5132 | 7157 | |
25dbc73a | 7158 | BFD_ASSERT (lsect != NULL); |
252b5132 | 7159 | |
25dbc73a | 7160 | if (h != NULL) |
252b5132 | 7161 | { |
25dbc73a AM |
7162 | /* Handle global symbol. */ |
7163 | struct ppc_elf_link_hash_entry *eh; | |
252b5132 | 7164 | |
25dbc73a | 7165 | eh = (struct ppc_elf_link_hash_entry *) h; |
76750a2f AM |
7166 | BFD_ASSERT (eh->elf.def_regular); |
7167 | linker_section_ptr = eh->linker_section_pointer; | |
25dbc73a AM |
7168 | } |
7169 | else | |
7170 | { | |
7171 | /* Handle local symbol. */ | |
7172 | unsigned long r_symndx = ELF32_R_SYM (rel->r_info); | |
76750a2f | 7173 | |
0c8d6e5c | 7174 | BFD_ASSERT (is_ppc_elf (input_bfd)); |
25dbc73a | 7175 | BFD_ASSERT (elf_local_ptr_offsets (input_bfd) != NULL); |
76750a2f AM |
7176 | linker_section_ptr = elf_local_ptr_offsets (input_bfd)[r_symndx]; |
7177 | } | |
252b5132 | 7178 | |
76750a2f AM |
7179 | linker_section_ptr = elf_find_pointer_linker_section (linker_section_ptr, |
7180 | rel->r_addend, | |
7181 | lsect); | |
7182 | BFD_ASSERT (linker_section_ptr != NULL); | |
25dbc73a | 7183 | |
76750a2f AM |
7184 | /* Offset will always be a multiple of four, so use the bottom bit |
7185 | as a "written" flag. */ | |
7186 | if ((linker_section_ptr->offset & 1) == 0) | |
7187 | { | |
7188 | bfd_put_32 (lsect->section->owner, | |
7189 | relocation + linker_section_ptr->addend, | |
7190 | lsect->section->contents + linker_section_ptr->offset); | |
7191 | linker_section_ptr->offset += 1; | |
252b5132 RH |
7192 | } |
7193 | ||
bd6c6e2b AM |
7194 | relocation = (lsect->section->output_section->vma |
7195 | + lsect->section->output_offset | |
76750a2f | 7196 | + linker_section_ptr->offset - 1 |
bd6c6e2b | 7197 | - SYM_VAL (lsect->sym)); |
252b5132 | 7198 | |
25dbc73a AM |
7199 | #ifdef DEBUG |
7200 | fprintf (stderr, | |
7201 | "Finish pointer in linker section %s, offset = %ld (0x%lx)\n", | |
7202 | lsect->name, (long) relocation, (long) relocation); | |
7203 | #endif | |
252b5132 | 7204 | |
bd6c6e2b | 7205 | return relocation; |
252b5132 | 7206 | } |
25dbc73a | 7207 | |
e054468f AM |
7208 | #define PPC_LO(v) ((v) & 0xffff) |
7209 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
7210 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
7211 | ||
7212 | static void | |
a7f2871e | 7213 | write_glink_stub (struct plt_entry *ent, asection *plt_sec, unsigned char *p, |
e054468f AM |
7214 | struct bfd_link_info *info) |
7215 | { | |
7216 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); | |
7217 | bfd *output_bfd = info->output_bfd; | |
7218 | bfd_vma plt; | |
e054468f AM |
7219 | |
7220 | plt = ((ent->plt.offset & ~1) | |
7221 | + plt_sec->output_section->vma | |
7222 | + plt_sec->output_offset); | |
e054468f | 7223 | |
a877a2b6 | 7224 | if (info->shared) |
e054468f AM |
7225 | { |
7226 | bfd_vma got = 0; | |
7227 | ||
7228 | if (ent->addend >= 32768) | |
7229 | got = (ent->addend | |
7230 | + ent->sec->output_section->vma | |
7231 | + ent->sec->output_offset); | |
7232 | else if (htab->elf.hgot != NULL) | |
7233 | got = SYM_VAL (htab->elf.hgot); | |
7234 | ||
7235 | plt -= got; | |
7236 | ||
7237 | if (plt + 0x8000 < 0x10000) | |
7238 | { | |
7239 | bfd_put_32 (output_bfd, LWZ_11_30 + PPC_LO (plt), p); | |
7240 | p += 4; | |
7241 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7242 | p += 4; | |
7243 | bfd_put_32 (output_bfd, BCTR, p); | |
7244 | p += 4; | |
7245 | bfd_put_32 (output_bfd, NOP, p); | |
7246 | p += 4; | |
7247 | } | |
7248 | else | |
7249 | { | |
7250 | bfd_put_32 (output_bfd, ADDIS_11_30 + PPC_HA (plt), p); | |
7251 | p += 4; | |
7252 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7253 | p += 4; | |
7254 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7255 | p += 4; | |
7256 | bfd_put_32 (output_bfd, BCTR, p); | |
7257 | p += 4; | |
7258 | } | |
7259 | } | |
7260 | else | |
7261 | { | |
7262 | bfd_put_32 (output_bfd, LIS_11 + PPC_HA (plt), p); | |
7263 | p += 4; | |
7264 | bfd_put_32 (output_bfd, LWZ_11_11 + PPC_LO (plt), p); | |
7265 | p += 4; | |
7266 | bfd_put_32 (output_bfd, MTCTR_11, p); | |
7267 | p += 4; | |
7268 | bfd_put_32 (output_bfd, BCTR, p); | |
7269 | p += 4; | |
7270 | } | |
7271 | } | |
7272 | ||
bd6c6e2b AM |
7273 | /* Return true if symbol is defined statically. */ |
7274 | ||
7275 | static bfd_boolean | |
7276 | is_static_defined (struct elf_link_hash_entry *h) | |
7277 | { | |
7278 | return ((h->root.type == bfd_link_hash_defined | |
7279 | || h->root.type == bfd_link_hash_defweak) | |
7280 | && h->root.u.def.section != NULL | |
7281 | && h->root.u.def.section->output_section != NULL); | |
7282 | } | |
7283 | ||
2d0f3896 AM |
7284 | /* If INSN is an opcode that may be used with an @tls operand, return |
7285 | the transformed insn for TLS optimisation, otherwise return 0. If | |
7286 | REG is non-zero only match an insn with RB or RA equal to REG. */ | |
7287 | ||
7288 | unsigned int | |
7289 | _bfd_elf_ppc_at_tls_transform (unsigned int insn, unsigned int reg) | |
7290 | { | |
7291 | unsigned int rtra; | |
7292 | ||
7293 | if ((insn & (0x3f << 26)) != 31 << 26) | |
7294 | return 0; | |
7295 | ||
7296 | if (reg == 0 || ((insn >> 11) & 0x1f) == reg) | |
7297 | rtra = insn & ((1 << 26) - (1 << 16)); | |
7298 | else if (((insn >> 16) & 0x1f) == reg) | |
7299 | rtra = (insn & (0x1f << 21)) | ((insn & (0x1f << 11)) << 5); | |
7300 | else | |
7301 | return 0; | |
7302 | ||
7303 | if ((insn & (0x3ff << 1)) == 266 << 1) | |
7304 | /* add -> addi. */ | |
7305 | insn = 14 << 26; | |
7306 | else if ((insn & (0x1f << 1)) == 23 << 1 | |
7307 | && ((insn & (0x1f << 6)) < 14 << 6 | |
7308 | || ((insn & (0x1f << 6)) >= 16 << 6 | |
7309 | && (insn & (0x1f << 6)) < 24 << 6))) | |
7310 | /* load and store indexed -> dform. */ | |
7311 | insn = (32 | ((insn >> 6) & 0x1f)) << 26; | |
7312 | else if ((insn & (((0x1a << 5) | 0x1f) << 1)) == 21 << 1) | |
7313 | /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */ | |
7314 | insn = ((58 | ((insn >> 6) & 4)) << 26) | ((insn >> 6) & 1); | |
7315 | else if ((insn & (((0x1f << 5) | 0x1f) << 1)) == 341 << 1) | |
7316 | /* lwax -> lwa. */ | |
7317 | insn = (58 << 26) | 2; | |
7318 | else | |
7319 | return 0; | |
7320 | insn |= rtra; | |
7321 | return insn; | |
7322 | } | |
7323 | ||
766bc656 AM |
7324 | /* If INSN is an opcode that may be used with an @tprel operand, return |
7325 | the transformed insn for an undefined weak symbol, ie. with the | |
7326 | thread pointer REG operand removed. Otherwise return 0. */ | |
7327 | ||
7328 | unsigned int | |
7329 | _bfd_elf_ppc_at_tprel_transform (unsigned int insn, unsigned int reg) | |
7330 | { | |
7331 | if ((insn & (0x1f << 16)) == reg << 16 | |
7332 | && ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
7333 | || (insn & (0x3f << 26)) == 15u << 26 /* addis */ | |
7334 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
7335 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
7336 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
7337 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
7338 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
7339 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
7340 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
7341 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
7342 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
7343 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
7344 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
7345 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
7346 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
7347 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
7348 | && (insn & 3) != 1) | |
7349 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
7350 | && ((insn & 3) == 0 || (insn & 3) == 3)))) | |
7351 | { | |
7352 | insn &= ~(0x1f << 16); | |
7353 | } | |
7354 | else if ((insn & (0x1f << 21)) == reg << 21 | |
7355 | && ((insn & (0x3e << 26)) == 24u << 26 /* ori, oris */ | |
7356 | || (insn & (0x3e << 26)) == 26u << 26 /* xori,xoris */ | |
7357 | || (insn & (0x3e << 26)) == 28u << 26 /* andi,andis */)) | |
7358 | { | |
7359 | insn &= ~(0x1f << 21); | |
7360 | insn |= (insn & (0x1f << 16)) << 5; | |
7361 | if ((insn & (0x3e << 26)) == 26 << 26 /* xori,xoris */) | |
7362 | insn -= 2 >> 26; /* convert to ori,oris */ | |
7363 | } | |
7364 | else | |
7365 | insn = 0; | |
7366 | return insn; | |
7367 | } | |
7368 | ||
1fe532cf AM |
7369 | static bfd_boolean |
7370 | is_insn_ds_form (unsigned int insn) | |
7371 | { | |
7372 | return ((insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */ | |
7373 | || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */ | |
7374 | || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */ | |
7375 | || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */); | |
7376 | } | |
7377 | ||
7378 | static bfd_boolean | |
7379 | is_insn_dq_form (unsigned int insn) | |
7380 | { | |
7381 | return (insn & (0x3f << 26)) == 56u << 26; /* lq */ | |
7382 | } | |
7383 | ||
252b5132 RH |
7384 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
7385 | to handle the relocations for a section. | |
7386 | ||
7387 | The relocs are always passed as Rela structures; if the section | |
7388 | actually uses Rel structures, the r_addend field will always be | |
7389 | zero. | |
7390 | ||
7391 | This function is responsible for adjust the section contents as | |
7392 | necessary, and (if using Rela relocs and generating a | |
1049f94e | 7393 | relocatable output file) adjusting the reloc addend as |
252b5132 RH |
7394 | necessary. |
7395 | ||
7396 | This function does not have to worry about setting the reloc | |
7397 | address or the reloc symbol index. | |
7398 | ||
7399 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
7400 | ||
7401 | LOCAL_SECTIONS is an array giving the section in the input file | |
7402 | corresponding to the st_shndx field of each local symbol. | |
7403 | ||
7404 | The global hash table entry for the global symbols can be found | |
7405 | via elf_sym_hashes (input_bfd). | |
7406 | ||
1049f94e | 7407 | When generating relocatable output, this function must handle |
252b5132 RH |
7408 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
7409 | going to be the section symbol corresponding to the output | |
7410 | section, which means that the addend must be adjusted | |
7411 | accordingly. */ | |
7412 | ||
b34976b6 | 7413 | static bfd_boolean |
55fd94b0 AM |
7414 | ppc_elf_relocate_section (bfd *output_bfd, |
7415 | struct bfd_link_info *info, | |
7416 | bfd *input_bfd, | |
7417 | asection *input_section, | |
7418 | bfd_byte *contents, | |
7419 | Elf_Internal_Rela *relocs, | |
7420 | Elf_Internal_Sym *local_syms, | |
7421 | asection **local_sections) | |
252b5132 | 7422 | { |
7619e7c7 AM |
7423 | Elf_Internal_Shdr *symtab_hdr; |
7424 | struct elf_link_hash_entry **sym_hashes; | |
7425 | struct ppc_elf_link_hash_table *htab; | |
7426 | Elf_Internal_Rela *rel; | |
7427 | Elf_Internal_Rela *relend; | |
7428 | Elf_Internal_Rela outrel; | |
f95f8542 | 7429 | asection *got2; |
252b5132 | 7430 | bfd_vma *local_got_offsets; |
b34976b6 | 7431 | bfd_boolean ret = TRUE; |
4fe5ca5b | 7432 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
3348747a | 7433 | bfd_boolean is_vxworks_tls; |
b34976b6 | 7434 | |
252b5132 | 7435 | #ifdef DEBUG |
d003868e AM |
7436 | _bfd_error_handler ("ppc_elf_relocate_section called for %B section %A, " |
7437 | "%ld relocations%s", | |
7438 | input_bfd, input_section, | |
7439 | (long) input_section->reloc_count, | |
7440 | (info->relocatable) ? " (relocatable)" : ""); | |
252b5132 RH |
7441 | #endif |
7442 | ||
a6aa5195 AM |
7443 | got2 = bfd_get_section_by_name (input_bfd, ".got2"); |
7444 | ||
e47cd125 | 7445 | /* Initialize howto table if not already done. */ |
8da6118f | 7446 | if (!ppc_elf_howto_table[R_PPC_ADDR32]) |
252b5132 RH |
7447 | ppc_elf_howto_init (); |
7448 | ||
7619e7c7 | 7449 | htab = ppc_elf_hash_table (info); |
252b5132 | 7450 | local_got_offsets = elf_local_got_offsets (input_bfd); |
0ffa91dd | 7451 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
7619e7c7 | 7452 | sym_hashes = elf_sym_hashes (input_bfd); |
3348747a NS |
7453 | /* We have to handle relocations in vxworks .tls_vars sections |
7454 | specially, because the dynamic loader is 'weird'. */ | |
7455 | is_vxworks_tls = (htab->is_vxworks && info->shared | |
7456 | && !strcmp (input_section->output_section->name, | |
7457 | ".tls_vars")); | |
7619e7c7 AM |
7458 | rel = relocs; |
7459 | relend = relocs + input_section->reloc_count; | |
252b5132 RH |
7460 | for (; rel < relend; rel++) |
7461 | { | |
7619e7c7 AM |
7462 | enum elf_ppc_reloc_type r_type; |
7463 | bfd_vma addend; | |
7464 | bfd_reloc_status_type r; | |
7465 | Elf_Internal_Sym *sym; | |
7466 | asection *sec; | |
7467 | struct elf_link_hash_entry *h; | |
7468 | const char *sym_name; | |
252b5132 RH |
7469 | reloc_howto_type *howto; |
7470 | unsigned long r_symndx; | |
7471 | bfd_vma relocation; | |
91d6fa6a | 7472 | bfd_vma branch_bit, from; |
7619e7c7 AM |
7473 | bfd_boolean unresolved_reloc; |
7474 | bfd_boolean warned; | |
7475 | unsigned int tls_type, tls_mask, tls_gd; | |
e054468f | 7476 | struct plt_entry **ifunc; |
7619e7c7 | 7477 | |
55fd94b0 AM |
7478 | r_type = ELF32_R_TYPE (rel->r_info); |
7479 | sym = NULL; | |
7480 | sec = NULL; | |
7481 | h = NULL; | |
7619e7c7 AM |
7482 | unresolved_reloc = FALSE; |
7483 | warned = FALSE; | |
252b5132 | 7484 | r_symndx = ELF32_R_SYM (rel->r_info); |
560e09e9 | 7485 | |
252b5132 RH |
7486 | if (r_symndx < symtab_hdr->sh_info) |
7487 | { | |
7488 | sym = local_syms + r_symndx; | |
7489 | sec = local_sections[r_symndx]; | |
26c61ae5 | 7490 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
252b5132 | 7491 | |
8517fae7 | 7492 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
252b5132 RH |
7493 | } |
7494 | else | |
7495 | { | |
62d887d4 L |
7496 | bfd_boolean ignored; |
7497 | ||
b2a8e766 AM |
7498 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
7499 | r_symndx, symtab_hdr, sym_hashes, | |
7500 | h, sec, relocation, | |
62d887d4 | 7501 | unresolved_reloc, warned, ignored); |
9abc968f | 7502 | |
252b5132 | 7503 | sym_name = h->root.root.string; |
7619e7c7 AM |
7504 | } |
7505 | ||
dbaa2011 | 7506 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
7507 | { |
7508 | /* For relocs against symbols from removed linkonce sections, | |
7509 | or sections discarded by a linker script, we just want the | |
7510 | section contents zeroed. Avoid any special processing. */ | |
7511 | howto = NULL; | |
7512 | if (r_type < R_PPC_max) | |
7513 | howto = ppc_elf_howto_table[r_type]; | |
e4067dbb | 7514 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 7515 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
7516 | } |
7517 | ||
7518 | if (info->relocatable) | |
7519 | { | |
7520 | if (got2 != NULL | |
7521 | && r_type == R_PPC_PLTREL24 | |
f75e0e33 | 7522 | && rel->r_addend != 0) |
ab96bf03 AM |
7523 | { |
7524 | /* R_PPC_PLTREL24 is rather special. If non-zero, the | |
7525 | addend specifies the GOT pointer offset within .got2. */ | |
7526 | rel->r_addend += got2->output_offset; | |
7527 | } | |
7528 | continue; | |
7529 | } | |
7530 | ||
7619e7c7 AM |
7531 | /* TLS optimizations. Replace instruction sequences and relocs |
7532 | based on information we collected in tls_optimize. We edit | |
7533 | RELOCS so that --emit-relocs will output something sensible | |
7534 | for the final instruction stream. */ | |
7535 | tls_mask = 0; | |
7536 | tls_gd = 0; | |
727fc41e AM |
7537 | if (h != NULL) |
7538 | tls_mask = ((struct ppc_elf_link_hash_entry *) h)->tls_mask; | |
7539 | else if (local_got_offsets != NULL) | |
7619e7c7 | 7540 | { |
e054468f | 7541 | struct plt_entry **local_plt; |
727fc41e | 7542 | char *lgot_masks; |
e054468f AM |
7543 | local_plt |
7544 | = (struct plt_entry **) (local_got_offsets + symtab_hdr->sh_info); | |
7545 | lgot_masks = (char *) (local_plt + symtab_hdr->sh_info); | |
727fc41e | 7546 | tls_mask = lgot_masks[r_symndx]; |
7619e7c7 AM |
7547 | } |
7548 | ||
7549 | /* Ensure reloc mapping code below stays sane. */ | |
7550 | if ((R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TLSGD16 & 3) | |
7551 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TLSGD16_LO & 3) | |
7552 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TLSGD16_HI & 3) | |
7553 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TLSGD16_HA & 3) | |
7554 | || (R_PPC_GOT_TLSLD16 & 3) != (R_PPC_GOT_TPREL16 & 3) | |
7555 | || (R_PPC_GOT_TLSLD16_LO & 3) != (R_PPC_GOT_TPREL16_LO & 3) | |
7556 | || (R_PPC_GOT_TLSLD16_HI & 3) != (R_PPC_GOT_TPREL16_HI & 3) | |
7557 | || (R_PPC_GOT_TLSLD16_HA & 3) != (R_PPC_GOT_TPREL16_HA & 3)) | |
7558 | abort (); | |
7559 | switch (r_type) | |
7560 | { | |
7561 | default: | |
7562 | break; | |
7563 | ||
7564 | case R_PPC_GOT_TPREL16: | |
7565 | case R_PPC_GOT_TPREL16_LO: | |
e054468f | 7566 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7567 | && (tls_mask & TLS_TPREL) == 0) |
7568 | { | |
7569 | bfd_vma insn; | |
91d6fa6a | 7570 | |
4fe5ca5b | 7571 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); |
7619e7c7 AM |
7572 | insn &= 31 << 21; |
7573 | insn |= 0x3c020000; /* addis 0,2,0 */ | |
4fe5ca5b | 7574 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); |
7619e7c7 AM |
7575 | r_type = R_PPC_TPREL16_HA; |
7576 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7577 | } | |
7578 | break; | |
7579 | ||
7580 | case R_PPC_TLS: | |
e054468f | 7581 | if ((tls_mask & TLS_TLS) != 0 |
7619e7c7 AM |
7582 | && (tls_mask & TLS_TPREL) == 0) |
7583 | { | |
2d0f3896 AM |
7584 | bfd_vma insn; |
7585 | ||
7619e7c7 | 7586 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
2d0f3896 AM |
7587 | insn = _bfd_elf_ppc_at_tls_transform (insn, 2); |
7588 | if (insn == 0) | |
7619e7c7 | 7589 | abort (); |
7619e7c7 AM |
7590 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
7591 | r_type = R_PPC_TPREL16_LO; | |
7592 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
4fe5ca5b | 7593 | |
7619e7c7 | 7594 | /* Was PPC_TLS which sits on insn boundary, now |
4fe5ca5b GM |
7595 | PPC_TPREL16_LO which is at low-order half-word. */ |
7596 | rel->r_offset += d_offset; | |
7619e7c7 AM |
7597 | } |
7598 | break; | |
7599 | ||
7600 | case R_PPC_GOT_TLSGD16_HI: | |
7601 | case R_PPC_GOT_TLSGD16_HA: | |
7602 | tls_gd = TLS_TPRELGD; | |
e054468f | 7603 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
7619e7c7 AM |
7604 | goto tls_gdld_hi; |
7605 | break; | |
7606 | ||
7607 | case R_PPC_GOT_TLSLD16_HI: | |
7608 | case R_PPC_GOT_TLSLD16_HA: | |
e054468f | 7609 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 AM |
7610 | { |
7611 | tls_gdld_hi: | |
7612 | if ((tls_mask & tls_gd) != 0) | |
7613 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) | |
7614 | + R_PPC_GOT_TPREL16); | |
7615 | else | |
7616 | { | |
7617 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
4fe5ca5b | 7618 | rel->r_offset -= d_offset; |
7619e7c7 AM |
7619 | r_type = R_PPC_NONE; |
7620 | } | |
7621 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7622 | } | |
7623 | break; | |
7624 | ||
7625 | case R_PPC_GOT_TLSGD16: | |
7626 | case R_PPC_GOT_TLSGD16_LO: | |
7627 | tls_gd = TLS_TPRELGD; | |
e054468f | 7628 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
b7fcf6f6 | 7629 | goto tls_ldgd_opt; |
7619e7c7 AM |
7630 | break; |
7631 | ||
7632 | case R_PPC_GOT_TLSLD16: | |
7633 | case R_PPC_GOT_TLSLD16_LO: | |
e054468f | 7634 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
7619e7c7 | 7635 | { |
3a71aa26 | 7636 | unsigned int insn1, insn2; |
b7fcf6f6 | 7637 | bfd_vma offset; |
7619e7c7 | 7638 | |
b7fcf6f6 | 7639 | tls_ldgd_opt: |
727fc41e AM |
7640 | offset = (bfd_vma) -1; |
7641 | /* If not using the newer R_PPC_TLSGD/LD to mark | |
7642 | __tls_get_addr calls, we must trust that the call | |
7643 | stays with its arg setup insns, ie. that the next | |
7644 | reloc is the __tls_get_addr call associated with | |
7645 | the current reloc. Edit both insns. */ | |
7646 | if (input_section->has_tls_get_addr_call | |
7647 | && rel + 1 < relend | |
7648 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
7649 | htab->tls_get_addr)) | |
7650 | offset = rel[1].r_offset; | |
b7fcf6f6 AM |
7651 | if ((tls_mask & tls_gd) != 0) |
7652 | { | |
7653 | /* IE */ | |
3a71aa26 AM |
7654 | insn1 = bfd_get_32 (output_bfd, |
7655 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
7656 | insn1 &= (1 << 26) - 1; |
7657 | insn1 |= 32 << 26; /* lwz */ | |
727fc41e AM |
7658 | if (offset != (bfd_vma) -1) |
7659 | { | |
f58d5a2d | 7660 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
7661 | insn2 = 0x7c631214; /* add 3,3,2 */ |
7662 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7663 | } | |
b7fcf6f6 AM |
7664 | r_type = (((r_type - (R_PPC_GOT_TLSGD16 & 3)) & 3) |
7665 | + R_PPC_GOT_TPREL16); | |
7666 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7667 | } | |
7668 | else | |
7669 | { | |
7670 | /* LE */ | |
7671 | insn1 = 0x3c620000; /* addis 3,2,0 */ | |
7619e7c7 AM |
7672 | if (tls_gd == 0) |
7673 | { | |
b7fcf6f6 | 7674 | /* Was an LD reloc. */ |
1d483afe AM |
7675 | for (r_symndx = 0; |
7676 | r_symndx < symtab_hdr->sh_info; | |
7677 | r_symndx++) | |
7678 | if (local_sections[r_symndx] == sec) | |
7679 | break; | |
7680 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 7681 | r_symndx = STN_UNDEF; |
b7fcf6f6 | 7682 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 7683 | if (r_symndx != STN_UNDEF) |
1d483afe AM |
7684 | rel->r_addend -= (local_syms[r_symndx].st_value |
7685 | + sec->output_offset | |
7686 | + sec->output_section->vma); | |
7619e7c7 | 7687 | } |
b7fcf6f6 AM |
7688 | r_type = R_PPC_TPREL16_HA; |
7689 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
727fc41e AM |
7690 | if (offset != (bfd_vma) -1) |
7691 | { | |
7692 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
7693 | rel[1].r_offset = offset + d_offset; | |
7694 | rel[1].r_addend = rel->r_addend; | |
7695 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7696 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7697 | } | |
b7fcf6f6 AM |
7698 | } |
7699 | bfd_put_32 (output_bfd, insn1, | |
7700 | contents + rel->r_offset - d_offset); | |
b7fcf6f6 AM |
7701 | if (tls_gd == 0) |
7702 | { | |
7703 | /* We changed the symbol on an LD reloc. Start over | |
7704 | in order to get h, sym, sec etc. right. */ | |
7705 | rel--; | |
7706 | continue; | |
7619e7c7 | 7707 | } |
252b5132 | 7708 | } |
7619e7c7 | 7709 | break; |
727fc41e AM |
7710 | |
7711 | case R_PPC_TLSGD: | |
e054468f | 7712 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
727fc41e AM |
7713 | { |
7714 | unsigned int insn2; | |
7715 | bfd_vma offset = rel->r_offset; | |
7716 | ||
7717 | if ((tls_mask & TLS_TPRELGD) != 0) | |
7718 | { | |
7719 | /* IE */ | |
7720 | r_type = R_PPC_NONE; | |
7721 | insn2 = 0x7c631214; /* add 3,3,2 */ | |
7722 | } | |
7723 | else | |
7724 | { | |
7725 | /* LE */ | |
7726 | r_type = R_PPC_TPREL16_LO; | |
7727 | rel->r_offset += d_offset; | |
7728 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7729 | } | |
7730 | rel->r_info = ELF32_R_INFO (r_symndx, r_type); | |
7731 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
7732 | /* Zap the reloc on the _tls_get_addr call too. */ | |
7733 | BFD_ASSERT (offset == rel[1].r_offset); | |
f58d5a2d | 7734 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
7735 | } |
7736 | break; | |
7737 | ||
7738 | case R_PPC_TLSLD: | |
e054468f | 7739 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
727fc41e AM |
7740 | { |
7741 | unsigned int insn2; | |
7742 | ||
7743 | for (r_symndx = 0; | |
7744 | r_symndx < symtab_hdr->sh_info; | |
7745 | r_symndx++) | |
7746 | if (local_sections[r_symndx] == sec) | |
7747 | break; | |
7748 | if (r_symndx >= symtab_hdr->sh_info) | |
cf35638d | 7749 | r_symndx = STN_UNDEF; |
727fc41e | 7750 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
cf35638d | 7751 | if (r_symndx != STN_UNDEF) |
727fc41e AM |
7752 | rel->r_addend -= (local_syms[r_symndx].st_value |
7753 | + sec->output_offset | |
7754 | + sec->output_section->vma); | |
7755 | ||
7756 | rel->r_info = ELF32_R_INFO (r_symndx, R_PPC_TPREL16_LO); | |
7757 | rel->r_offset += d_offset; | |
7758 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
7759 | bfd_put_32 (output_bfd, insn2, | |
7760 | contents + rel->r_offset - d_offset); | |
7761 | /* Zap the reloc on the _tls_get_addr call too. */ | |
7762 | BFD_ASSERT (rel->r_offset - d_offset == rel[1].r_offset); | |
f58d5a2d | 7763 | rel[1].r_info = ELF32_R_INFO (STN_UNDEF, R_PPC_NONE); |
727fc41e AM |
7764 | rel--; |
7765 | continue; | |
7766 | } | |
7767 | break; | |
7619e7c7 AM |
7768 | } |
7769 | ||
7770 | /* Handle other relocations that tweak non-addend part of insn. */ | |
7771 | branch_bit = 0; | |
7772 | switch (r_type) | |
7773 | { | |
7774 | default: | |
7775 | break; | |
7776 | ||
7777 | /* Branch taken prediction relocations. */ | |
7778 | case R_PPC_ADDR14_BRTAKEN: | |
7779 | case R_PPC_REL14_BRTAKEN: | |
7780 | branch_bit = BRANCH_PREDICT_BIT; | |
7781 | /* Fall thru */ | |
7782 | ||
4cc11e76 | 7783 | /* Branch not taken prediction relocations. */ |
7619e7c7 AM |
7784 | case R_PPC_ADDR14_BRNTAKEN: |
7785 | case R_PPC_REL14_BRNTAKEN: | |
91d6fa6a NC |
7786 | { |
7787 | bfd_vma insn; | |
7619e7c7 | 7788 | |
91d6fa6a NC |
7789 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
7790 | insn &= ~BRANCH_PREDICT_BIT; | |
7791 | insn |= branch_bit; | |
7619e7c7 | 7792 | |
91d6fa6a NC |
7793 | from = (rel->r_offset |
7794 | + input_section->output_offset | |
7795 | + input_section->output_section->vma); | |
7619e7c7 | 7796 | |
91d6fa6a NC |
7797 | /* Invert 'y' bit if not the default. */ |
7798 | if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0) | |
7799 | insn ^= BRANCH_PREDICT_BIT; | |
7800 | ||
7801 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
7802 | break; | |
7803 | } | |
252b5132 RH |
7804 | } |
7805 | ||
e054468f | 7806 | ifunc = NULL; |
25f23106 | 7807 | if (!htab->is_vxworks) |
e054468f | 7808 | { |
de972ffa AM |
7809 | struct plt_entry *ent; |
7810 | ||
e054468f AM |
7811 | if (h != NULL) |
7812 | { | |
7813 | if (h->type == STT_GNU_IFUNC) | |
7814 | ifunc = &h->plt.plist; | |
7815 | } | |
de972ffa AM |
7816 | else if (local_got_offsets != NULL |
7817 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
e054468f | 7818 | { |
de972ffa | 7819 | struct plt_entry **local_plt; |
e054468f | 7820 | |
de972ffa AM |
7821 | local_plt = (struct plt_entry **) (local_got_offsets |
7822 | + symtab_hdr->sh_info); | |
7823 | ifunc = local_plt + r_symndx; | |
e054468f | 7824 | } |
e054468f | 7825 | |
de972ffa AM |
7826 | ent = NULL; |
7827 | if (ifunc != NULL | |
7828 | && (!info->shared | |
7829 | || is_branch_reloc (r_type))) | |
7830 | { | |
7831 | addend = 0; | |
a877a2b6 | 7832 | if (r_type == R_PPC_PLTREL24 && info->shared) |
de972ffa AM |
7833 | addend = rel->r_addend; |
7834 | ent = find_plt_ent (ifunc, got2, addend); | |
7835 | } | |
7836 | if (ent != NULL) | |
7837 | { | |
e054468f AM |
7838 | if (h == NULL && (ent->plt.offset & 1) == 0) |
7839 | { | |
7840 | Elf_Internal_Rela rela; | |
7841 | bfd_byte *loc; | |
7842 | ||
7843 | rela.r_offset = (htab->iplt->output_section->vma | |
7844 | + htab->iplt->output_offset | |
7845 | + ent->plt.offset); | |
7846 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
7847 | rela.r_addend = relocation; | |
25f23106 AM |
7848 | loc = htab->reliplt->contents; |
7849 | loc += (htab->reliplt->reloc_count++ | |
7850 | * sizeof (Elf32_External_Rela)); | |
e054468f AM |
7851 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
7852 | ||
7853 | ent->plt.offset |= 1; | |
7854 | } | |
7855 | if (h == NULL && (ent->glink_offset & 1) == 0) | |
7856 | { | |
a7f2871e AM |
7857 | unsigned char *p = ((unsigned char *) htab->glink->contents |
7858 | + ent->glink_offset); | |
7859 | write_glink_stub (ent, htab->iplt, p, info); | |
e054468f AM |
7860 | ent->glink_offset |= 1; |
7861 | } | |
7862 | ||
7863 | unresolved_reloc = FALSE; | |
7864 | if (htab->plt_type == PLT_NEW | |
7865 | || !htab->elf.dynamic_sections_created | |
7866 | || h == NULL) | |
7867 | relocation = (htab->glink->output_section->vma | |
7868 | + htab->glink->output_offset | |
7869 | + (ent->glink_offset & ~1)); | |
7870 | else | |
7871 | relocation = (htab->plt->output_section->vma | |
7872 | + htab->plt->output_offset | |
7873 | + ent->plt.offset); | |
7874 | } | |
7875 | } | |
7876 | ||
7619e7c7 AM |
7877 | addend = rel->r_addend; |
7878 | tls_type = 0; | |
7879 | howto = NULL; | |
55fd94b0 AM |
7880 | if (r_type < R_PPC_max) |
7881 | howto = ppc_elf_howto_table[r_type]; | |
7619e7c7 | 7882 | switch (r_type) |
252b5132 RH |
7883 | { |
7884 | default: | |
25f53a85 | 7885 | info->callbacks->einfo |
8de848d8 | 7886 | (_("%P: %B: unknown relocation type %d for symbol %s\n"), |
d003868e | 7887 | input_bfd, (int) r_type, sym_name); |
252b5132 RH |
7888 | |
7889 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 7890 | ret = FALSE; |
252b5132 RH |
7891 | continue; |
7892 | ||
7619e7c7 AM |
7893 | case R_PPC_NONE: |
7894 | case R_PPC_TLS: | |
727fc41e AM |
7895 | case R_PPC_TLSGD: |
7896 | case R_PPC_TLSLD: | |
7619e7c7 AM |
7897 | case R_PPC_EMB_MRKREF: |
7898 | case R_PPC_GNU_VTINHERIT: | |
7899 | case R_PPC_GNU_VTENTRY: | |
7595d193 L |
7900 | continue; |
7901 | ||
7619e7c7 AM |
7902 | /* GOT16 relocations. Like an ADDR16 using the symbol's |
7903 | address in the GOT as relocation value instead of the | |
7904 | symbol's value itself. Also, create a GOT entry for the | |
7905 | symbol and put the symbol value there. */ | |
7906 | case R_PPC_GOT_TLSGD16: | |
7907 | case R_PPC_GOT_TLSGD16_LO: | |
7908 | case R_PPC_GOT_TLSGD16_HI: | |
7909 | case R_PPC_GOT_TLSGD16_HA: | |
7910 | tls_type = TLS_TLS | TLS_GD; | |
7911 | goto dogot; | |
7912 | ||
7913 | case R_PPC_GOT_TLSLD16: | |
7914 | case R_PPC_GOT_TLSLD16_LO: | |
7915 | case R_PPC_GOT_TLSLD16_HI: | |
7916 | case R_PPC_GOT_TLSLD16_HA: | |
7917 | tls_type = TLS_TLS | TLS_LD; | |
7918 | goto dogot; | |
7919 | ||
7920 | case R_PPC_GOT_TPREL16: | |
7921 | case R_PPC_GOT_TPREL16_LO: | |
7922 | case R_PPC_GOT_TPREL16_HI: | |
7923 | case R_PPC_GOT_TPREL16_HA: | |
7924 | tls_type = TLS_TLS | TLS_TPREL; | |
7925 | goto dogot; | |
7926 | ||
7927 | case R_PPC_GOT_DTPREL16: | |
7928 | case R_PPC_GOT_DTPREL16_LO: | |
7929 | case R_PPC_GOT_DTPREL16_HI: | |
7930 | case R_PPC_GOT_DTPREL16_HA: | |
7931 | tls_type = TLS_TLS | TLS_DTPREL; | |
7932 | goto dogot; | |
7933 | ||
7934 | case R_PPC_GOT16: | |
7935 | case R_PPC_GOT16_LO: | |
7936 | case R_PPC_GOT16_HI: | |
7937 | case R_PPC_GOT16_HA: | |
727fc41e | 7938 | tls_mask = 0; |
7619e7c7 AM |
7939 | dogot: |
7940 | { | |
7941 | /* Relocation is to the entry for this symbol in the global | |
7942 | offset table. */ | |
7943 | bfd_vma off; | |
7944 | bfd_vma *offp; | |
7945 | unsigned long indx; | |
7946 | ||
7947 | if (htab->got == NULL) | |
7948 | abort (); | |
7949 | ||
7950 | indx = 0; | |
7951 | if (tls_type == (TLS_TLS | TLS_LD) | |
d881513a | 7952 | && (h == NULL |
f5385ebf | 7953 | || !h->def_dynamic)) |
7619e7c7 AM |
7954 | offp = &htab->tlsld_got.offset; |
7955 | else if (h != NULL) | |
7956 | { | |
7957 | bfd_boolean dyn; | |
7958 | dyn = htab->elf.dynamic_sections_created; | |
ee05f2fe | 7959 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
7619e7c7 AM |
7960 | || (info->shared |
7961 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
7962 | /* This is actually a static link, or it is a | |
7963 | -Bsymbolic link and the symbol is defined | |
7964 | locally, or the symbol was forced to be local | |
7965 | because of a version file. */ | |
7966 | ; | |
7967 | else | |
7968 | { | |
14acf4dc | 7969 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 AM |
7970 | indx = h->dynindx; |
7971 | unresolved_reloc = FALSE; | |
7972 | } | |
7973 | offp = &h->got.offset; | |
7974 | } | |
7975 | else | |
7976 | { | |
7977 | if (local_got_offsets == NULL) | |
7978 | abort (); | |
7979 | offp = &local_got_offsets[r_symndx]; | |
7980 | } | |
7981 | ||
7982 | /* The offset must always be a multiple of 4. We use the | |
7983 | least significant bit to record whether we have already | |
7984 | processed this entry. */ | |
7985 | off = *offp; | |
7986 | if ((off & 1) != 0) | |
7987 | off &= ~1; | |
7988 | else | |
7989 | { | |
70bccea4 AM |
7990 | unsigned int tls_m = (tls_mask |
7991 | & (TLS_LD | TLS_GD | TLS_DTPREL | |
7992 | | TLS_TPREL | TLS_TPRELGD)); | |
7993 | ||
7994 | if (offp == &htab->tlsld_got.offset) | |
7995 | tls_m = TLS_LD; | |
7996 | else if (h == NULL | |
f5385ebf | 7997 | || !h->def_dynamic) |
70bccea4 AM |
7998 | tls_m &= ~TLS_LD; |
7999 | ||
8000 | /* We might have multiple got entries for this sym. | |
8001 | Initialize them all. */ | |
8002 | do | |
7619e7c7 | 8003 | { |
70bccea4 AM |
8004 | int tls_ty = 0; |
8005 | ||
8006 | if ((tls_m & TLS_LD) != 0) | |
7619e7c7 | 8007 | { |
70bccea4 AM |
8008 | tls_ty = TLS_TLS | TLS_LD; |
8009 | tls_m &= ~TLS_LD; | |
8010 | } | |
8011 | else if ((tls_m & TLS_GD) != 0) | |
8012 | { | |
8013 | tls_ty = TLS_TLS | TLS_GD; | |
8014 | tls_m &= ~TLS_GD; | |
8015 | } | |
8016 | else if ((tls_m & TLS_DTPREL) != 0) | |
8017 | { | |
8018 | tls_ty = TLS_TLS | TLS_DTPREL; | |
8019 | tls_m &= ~TLS_DTPREL; | |
8020 | } | |
8021 | else if ((tls_m & (TLS_TPREL | TLS_TPRELGD)) != 0) | |
8022 | { | |
8023 | tls_ty = TLS_TLS | TLS_TPREL; | |
8024 | tls_m = 0; | |
7619e7c7 | 8025 | } |
7619e7c7 | 8026 | |
70bccea4 | 8027 | /* Generate relocs for the dynamic linker. */ |
4e795f50 | 8028 | if ((info->shared || indx != 0) |
d6e14abc AM |
8029 | && (offp == &htab->tlsld_got.offset |
8030 | || h == NULL | |
4e795f50 AM |
8031 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
8032 | || h->root.type != bfd_link_hash_undefweak)) | |
7619e7c7 | 8033 | { |
91e21fb7 | 8034 | asection *rsec = htab->relgot; |
91d6fa6a | 8035 | bfd_byte * loc; |
91e21fb7 | 8036 | |
0bed072f AM |
8037 | if (ifunc != NULL) |
8038 | rsec = htab->reliplt; | |
70bccea4 AM |
8039 | outrel.r_offset = (htab->got->output_section->vma |
8040 | + htab->got->output_offset | |
8041 | + off); | |
e515b051 | 8042 | outrel.r_addend = 0; |
70bccea4 AM |
8043 | if (tls_ty & (TLS_LD | TLS_GD)) |
8044 | { | |
8045 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPMOD32); | |
70bccea4 AM |
8046 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8047 | { | |
25f23106 AM |
8048 | loc = rsec->contents; |
8049 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8050 | * sizeof (Elf32_External_Rela)); |
8051 | bfd_elf32_swap_reloca_out (output_bfd, | |
8052 | &outrel, loc); | |
e515b051 | 8053 | outrel.r_offset += 4; |
70bccea4 AM |
8054 | outrel.r_info |
8055 | = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
70bccea4 AM |
8056 | } |
8057 | } | |
8058 | else if (tls_ty == (TLS_TLS | TLS_DTPREL)) | |
8059 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_DTPREL32); | |
8060 | else if (tls_ty == (TLS_TLS | TLS_TPREL)) | |
8061 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_TPREL32); | |
25f23106 | 8062 | else if (indx != 0) |
70bccea4 | 8063 | outrel.r_info = ELF32_R_INFO (indx, R_PPC_GLOB_DAT); |
25f23106 AM |
8064 | else if (ifunc != NULL) |
8065 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8066 | else | |
8067 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
d6e14abc | 8068 | if (indx == 0 && tls_ty != (TLS_TLS | TLS_LD)) |
e515b051 AM |
8069 | { |
8070 | outrel.r_addend += relocation; | |
8071 | if (tls_ty & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
e1918d23 | 8072 | outrel.r_addend -= htab->elf.tls_sec->vma; |
e515b051 | 8073 | } |
25f23106 AM |
8074 | loc = rsec->contents; |
8075 | loc += (rsec->reloc_count++ | |
70bccea4 AM |
8076 | * sizeof (Elf32_External_Rela)); |
8077 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
7619e7c7 AM |
8078 | } |
8079 | ||
70bccea4 AM |
8080 | /* Init the .got section contents if we're not |
8081 | emitting a reloc. */ | |
8082 | else | |
7619e7c7 | 8083 | { |
70bccea4 AM |
8084 | bfd_vma value = relocation; |
8085 | ||
7b609f53 AM |
8086 | if (tls_ty == (TLS_TLS | TLS_LD)) |
8087 | value = 1; | |
8088 | else if (tls_ty != 0) | |
70bccea4 | 8089 | { |
e1918d23 | 8090 | value -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7b609f53 | 8091 | if (tls_ty == (TLS_TLS | TLS_TPREL)) |
70bccea4 | 8092 | value += DTP_OFFSET - TP_OFFSET; |
70bccea4 | 8093 | |
7b609f53 AM |
8094 | if (tls_ty == (TLS_TLS | TLS_GD)) |
8095 | { | |
8096 | bfd_put_32 (output_bfd, value, | |
8097 | htab->got->contents + off + 4); | |
8098 | value = 1; | |
8099 | } | |
70bccea4 | 8100 | } |
70bccea4 AM |
8101 | bfd_put_32 (output_bfd, value, |
8102 | htab->got->contents + off); | |
7619e7c7 | 8103 | } |
70bccea4 AM |
8104 | |
8105 | off += 4; | |
8106 | if (tls_ty & (TLS_LD | TLS_GD)) | |
8107 | off += 4; | |
7619e7c7 | 8108 | } |
70bccea4 AM |
8109 | while (tls_m != 0); |
8110 | ||
8111 | off = *offp; | |
8112 | *offp = off | 1; | |
7619e7c7 AM |
8113 | } |
8114 | ||
8115 | if (off >= (bfd_vma) -2) | |
8116 | abort (); | |
8117 | ||
70bccea4 AM |
8118 | if ((tls_type & TLS_TLS) != 0) |
8119 | { | |
8120 | if (tls_type != (TLS_TLS | TLS_LD)) | |
8121 | { | |
8122 | if ((tls_mask & TLS_LD) != 0 | |
8123 | && !(h == NULL | |
f5385ebf | 8124 | || !h->def_dynamic)) |
70bccea4 AM |
8125 | off += 8; |
8126 | if (tls_type != (TLS_TLS | TLS_GD)) | |
8127 | { | |
8128 | if ((tls_mask & TLS_GD) != 0) | |
8129 | off += 8; | |
8130 | if (tls_type != (TLS_TLS | TLS_DTPREL)) | |
8131 | { | |
8132 | if ((tls_mask & TLS_DTPREL) != 0) | |
8133 | off += 4; | |
8134 | } | |
8135 | } | |
8136 | } | |
8137 | } | |
8138 | ||
e87d4038 AM |
8139 | relocation = (htab->got->output_section->vma |
8140 | + htab->got->output_offset | |
8141 | + off | |
8142 | - SYM_VAL (htab->elf.hgot)); | |
7619e7c7 AM |
8143 | |
8144 | /* Addends on got relocations don't make much sense. | |
8145 | x+off@got is actually x@got+off, and since the got is | |
8146 | generated by a hash table traversal, the value in the | |
8147 | got at entry m+n bears little relation to the entry m. */ | |
8148 | if (addend != 0) | |
25f53a85 | 8149 | info->callbacks->einfo |
8de848d8 | 8150 | (_("%P: %H: non-zero addend on %s reloc against `%s'\n"), |
25f53a85 | 8151 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 8152 | howto->name, |
7619e7c7 AM |
8153 | sym_name); |
8154 | } | |
70bccea4 | 8155 | break; |
7619e7c7 | 8156 | |
252b5132 | 8157 | /* Relocations that need no special processing. */ |
7619e7c7 | 8158 | case R_PPC_LOCAL24PC: |
252b5132 RH |
8159 | /* It makes no sense to point a local relocation |
8160 | at a symbol not in this object. */ | |
7b609f53 | 8161 | if (unresolved_reloc) |
252b5132 | 8162 | { |
464e1740 ILT |
8163 | if (! (*info->callbacks->undefined_symbol) (info, |
8164 | h->root.root.string, | |
8165 | input_bfd, | |
8166 | input_section, | |
5cc7c785 | 8167 | rel->r_offset, |
b34976b6 AM |
8168 | TRUE)) |
8169 | return FALSE; | |
252b5132 RH |
8170 | continue; |
8171 | } | |
8172 | break; | |
8173 | ||
7619e7c7 AM |
8174 | case R_PPC_DTPREL16: |
8175 | case R_PPC_DTPREL16_LO: | |
8176 | case R_PPC_DTPREL16_HI: | |
8177 | case R_PPC_DTPREL16_HA: | |
e1918d23 | 8178 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
8179 | break; |
8180 | ||
70bccea4 AM |
8181 | /* Relocations that may need to be propagated if this is a shared |
8182 | object. */ | |
7619e7c7 AM |
8183 | case R_PPC_TPREL16: |
8184 | case R_PPC_TPREL16_LO: | |
8185 | case R_PPC_TPREL16_HI: | |
8186 | case R_PPC_TPREL16_HA: | |
766bc656 AM |
8187 | if (h != NULL |
8188 | && h->root.type == bfd_link_hash_undefweak | |
8189 | && h->dynindx == -1) | |
8190 | { | |
8191 | /* Make this relocation against an undefined weak symbol | |
8192 | resolve to zero. This is really just a tweak, since | |
8193 | code using weak externs ought to check that they are | |
8194 | defined before using them. */ | |
8195 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
8196 | unsigned int insn = bfd_get_32 (output_bfd, p); | |
8197 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 2); | |
8198 | if (insn != 0) | |
8199 | bfd_put_32 (output_bfd, insn, p); | |
8200 | break; | |
8201 | } | |
e1918d23 | 8202 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
8203 | /* The TPREL16 relocs shouldn't really be used in shared |
8204 | libs as they will result in DT_TEXTREL being set, but | |
8205 | support them anyway. */ | |
8206 | goto dodyn; | |
8207 | ||
8208 | case R_PPC_TPREL32: | |
e1918d23 | 8209 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; |
7619e7c7 AM |
8210 | goto dodyn; |
8211 | ||
8212 | case R_PPC_DTPREL32: | |
e1918d23 | 8213 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; |
7619e7c7 AM |
8214 | goto dodyn; |
8215 | ||
e515b051 AM |
8216 | case R_PPC_DTPMOD32: |
8217 | relocation = 1; | |
8218 | addend = 0; | |
8219 | goto dodyn; | |
8220 | ||
d7128ce4 AM |
8221 | case R_PPC_REL16: |
8222 | case R_PPC_REL16_LO: | |
8223 | case R_PPC_REL16_HI: | |
8224 | case R_PPC_REL16_HA: | |
8225 | break; | |
8226 | ||
7619e7c7 | 8227 | case R_PPC_REL32: |
625af618 AM |
8228 | if (h == NULL || h == htab->elf.hgot) |
8229 | break; | |
8230 | /* fall through */ | |
8231 | ||
8232 | case R_PPC_ADDR32: | |
8233 | case R_PPC_ADDR16: | |
8234 | case R_PPC_ADDR16_LO: | |
8235 | case R_PPC_ADDR16_HI: | |
8236 | case R_PPC_ADDR16_HA: | |
8237 | case R_PPC_UADDR32: | |
8238 | case R_PPC_UADDR16: | |
8239 | goto dodyn; | |
8240 | ||
b9c361e0 JL |
8241 | case R_PPC_VLE_REL8: |
8242 | case R_PPC_VLE_REL15: | |
8243 | case R_PPC_VLE_REL24: | |
625af618 | 8244 | case R_PPC_REL24: |
7619e7c7 AM |
8245 | case R_PPC_REL14: |
8246 | case R_PPC_REL14_BRTAKEN: | |
8247 | case R_PPC_REL14_BRNTAKEN: | |
252b5132 RH |
8248 | /* If these relocations are not to a named symbol, they can be |
8249 | handled right here, no need to bother the dynamic linker. */ | |
89200bf8 | 8250 | if (SYMBOL_CALLS_LOCAL (info, h) |
3b36f7e6 | 8251 | || h == htab->elf.hgot) |
252b5132 | 8252 | break; |
70bccea4 | 8253 | /* fall through */ |
252b5132 | 8254 | |
7619e7c7 | 8255 | case R_PPC_ADDR24: |
7619e7c7 AM |
8256 | case R_PPC_ADDR14: |
8257 | case R_PPC_ADDR14_BRTAKEN: | |
8258 | case R_PPC_ADDR14_BRNTAKEN: | |
625af618 AM |
8259 | if (h != NULL && !info->shared) |
8260 | break; | |
8261 | /* fall through */ | |
8262 | ||
7619e7c7 | 8263 | dodyn: |
3348747a NS |
8264 | if ((input_section->flags & SEC_ALLOC) == 0 |
8265 | || is_vxworks_tls) | |
c87b5a93 | 8266 | break; |
c87b5a93 | 8267 | |
ee05f2fe | 8268 | if ((info->shared |
89200bf8 AM |
8269 | && !(h != NULL |
8270 | && ((h->root.type == bfd_link_hash_undefined | |
8271 | && (ELF_ST_VISIBILITY (h->other) == STV_HIDDEN | |
8272 | || ELF_ST_VISIBILITY (h->other) == STV_INTERNAL)) | |
8273 | || (h->root.type == bfd_link_hash_undefweak | |
8274 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))) | |
1d483afe | 8275 | && (must_be_dyn_reloc (info, r_type) |
f6c52c13 | 8276 | || !SYMBOL_CALLS_LOCAL (info, h))) |
ee05f2fe AM |
8277 | || (ELIMINATE_COPY_RELOCS |
8278 | && !info->shared | |
ee05f2fe AM |
8279 | && h != NULL |
8280 | && h->dynindx != -1 | |
f5385ebf | 8281 | && !h->non_got_ref |
de972ffa | 8282 | && !h->def_regular)) |
252b5132 | 8283 | { |
0bb2d96a | 8284 | int skip; |
f95f8542 AM |
8285 | bfd_byte *loc; |
8286 | asection *sreloc; | |
252b5132 | 8287 | #ifdef DEBUG |
55fd94b0 AM |
8288 | fprintf (stderr, "ppc_elf_relocate_section needs to " |
8289 | "create relocation for %s\n", | |
70bccea4 AM |
8290 | (h && h->root.root.string |
8291 | ? h->root.root.string : "<unknown>")); | |
252b5132 RH |
8292 | #endif |
8293 | ||
8294 | /* When generating a shared object, these relocations | |
70bccea4 AM |
8295 | are copied into the output file to be resolved at run |
8296 | time. */ | |
f95f8542 AM |
8297 | sreloc = elf_section_data (input_section)->sreloc; |
8298 | if (ifunc) | |
8299 | sreloc = htab->reliplt; | |
252b5132 | 8300 | if (sreloc == NULL) |
f95f8542 | 8301 | return FALSE; |
252b5132 | 8302 | |
0bb2d96a | 8303 | skip = 0; |
5b914448 AM |
8304 | outrel.r_offset = _bfd_elf_section_offset (output_bfd, info, |
8305 | input_section, | |
8306 | rel->r_offset); | |
0bb2d96a JJ |
8307 | if (outrel.r_offset == (bfd_vma) -1 |
8308 | || outrel.r_offset == (bfd_vma) -2) | |
8309 | skip = (int) outrel.r_offset; | |
252b5132 RH |
8310 | outrel.r_offset += (input_section->output_section->vma |
8311 | + input_section->output_offset); | |
8312 | ||
8313 | if (skip) | |
8314 | memset (&outrel, 0, sizeof outrel); | |
89200bf8 AM |
8315 | else if ((h != NULL |
8316 | && (h->root.type == bfd_link_hash_undefined | |
8317 | || h->root.type == bfd_link_hash_undefweak)) | |
8318 | || !SYMBOL_REFERENCES_LOCAL (info, h)) | |
252b5132 | 8319 | { |
14acf4dc | 8320 | BFD_ASSERT (h->dynindx != -1); |
7619e7c7 | 8321 | unresolved_reloc = FALSE; |
252b5132 RH |
8322 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
8323 | outrel.r_addend = rel->r_addend; | |
8324 | } | |
8325 | else | |
8326 | { | |
47388f4c AM |
8327 | outrel.r_addend = relocation + rel->r_addend; |
8328 | ||
25f23106 | 8329 | if (r_type != R_PPC_ADDR32) |
252b5132 | 8330 | { |
89200bf8 | 8331 | long indx = 0; |
252b5132 | 8332 | |
25f23106 AM |
8333 | if (ifunc != NULL) |
8334 | { | |
8335 | /* If we get here when building a static | |
8336 | executable, then the libc startup function | |
8337 | responsible for applying indirect function | |
8338 | relocations is going to complain about | |
8339 | the reloc type. | |
8340 | If we get here when building a dynamic | |
8341 | executable, it will be because we have | |
8342 | a text relocation. The dynamic loader | |
8343 | will set the text segment writable and | |
8344 | non-executable to apply text relocations. | |
8345 | So we'll segfault when trying to run the | |
8346 | indirection function to resolve the reloc. */ | |
25f53a85 | 8347 | info->callbacks->einfo |
8de848d8 | 8348 | (_("%P: %H: relocation %s for indirect " |
25f53a85 AM |
8349 | "function %s unsupported\n"), |
8350 | input_bfd, input_section, rel->r_offset, | |
25f23106 AM |
8351 | howto->name, |
8352 | sym_name); | |
8353 | ret = FALSE; | |
8354 | } | |
cf35638d | 8355 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
89200bf8 | 8356 | ; |
252b5132 RH |
8357 | else if (sec == NULL || sec->owner == NULL) |
8358 | { | |
8359 | bfd_set_error (bfd_error_bad_value); | |
89200bf8 | 8360 | ret = FALSE; |
252b5132 RH |
8361 | } |
8362 | else | |
8363 | { | |
8364 | asection *osec; | |
8365 | ||
47388f4c AM |
8366 | /* We are turning this relocation into one |
8367 | against a section symbol. It would be | |
8368 | proper to subtract the symbol's value, | |
8369 | osec->vma, from the emitted reloc addend, | |
25f23106 AM |
8370 | but ld.so expects buggy relocs. |
8371 | FIXME: Why not always use a zero index? */ | |
252b5132 RH |
8372 | osec = sec->output_section; |
8373 | indx = elf_section_data (osec)->dynindx; | |
74541ad4 AM |
8374 | if (indx == 0) |
8375 | { | |
8376 | osec = htab->elf.text_index_section; | |
8377 | indx = elf_section_data (osec)->dynindx; | |
8378 | } | |
8379 | BFD_ASSERT (indx != 0); | |
252b5132 | 8380 | #ifdef DEBUG |
74541ad4 | 8381 | if (indx == 0) |
e460dd0d | 8382 | printf ("indx=%ld section=%s flags=%08x name=%s\n", |
55fd94b0 AM |
8383 | indx, osec->name, osec->flags, |
8384 | h->root.root.string); | |
252b5132 RH |
8385 | #endif |
8386 | } | |
8387 | ||
8388 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
252b5132 | 8389 | } |
25f23106 AM |
8390 | else if (ifunc != NULL) |
8391 | outrel.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
8392 | else | |
8393 | outrel.r_info = ELF32_R_INFO (0, R_PPC_RELATIVE); | |
252b5132 RH |
8394 | } |
8395 | ||
947216bf AM |
8396 | loc = sreloc->contents; |
8397 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
8398 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
252b5132 | 8399 | |
2243deae | 8400 | if (skip == -1) |
252b5132 | 8401 | continue; |
2243deae L |
8402 | |
8403 | /* This reloc will be computed at runtime. We clear the memory | |
8404 | so that it contains predictable value. */ | |
8405 | if (! skip | |
8406 | && ((input_section->flags & SEC_ALLOC) != 0 | |
8407 | || ELF32_R_TYPE (outrel.r_info) != R_PPC_RELATIVE)) | |
8408 | { | |
8409 | relocation = howto->pc_relative ? outrel.r_offset : 0; | |
8410 | addend = 0; | |
8411 | break; | |
8412 | } | |
252b5132 | 8413 | } |
252b5132 RH |
8414 | break; |
8415 | ||
32af9f6e AM |
8416 | case R_PPC_RELAX_PLT: |
8417 | case R_PPC_RELAX_PLTREL24: | |
de972ffa AM |
8418 | if (h != NULL) |
8419 | { | |
32af9f6e AM |
8420 | struct plt_entry *ent; |
8421 | bfd_vma got2_addend = 0; | |
8422 | ||
8423 | if (r_type == R_PPC_RELAX_PLTREL24) | |
8424 | { | |
8425 | if (info->shared) | |
8426 | got2_addend = addend; | |
8427 | addend = 0; | |
8428 | } | |
8429 | ent = find_plt_ent (&h->plt.plist, got2, got2_addend); | |
de972ffa AM |
8430 | if (htab->plt_type == PLT_NEW) |
8431 | relocation = (htab->glink->output_section->vma | |
8432 | + htab->glink->output_offset | |
8433 | + ent->glink_offset); | |
8434 | else | |
8435 | relocation = (htab->plt->output_section->vma | |
8436 | + htab->plt->output_offset | |
8437 | + ent->plt.offset); | |
8438 | } | |
b4a38de6 AM |
8439 | /* Fall thru */ |
8440 | ||
32af9f6e AM |
8441 | case R_PPC_RELAX: |
8442 | if (info->shared) | |
8443 | relocation -= (input_section->output_section->vma | |
8444 | + input_section->output_offset | |
8445 | + rel->r_offset - 4); | |
b4a38de6 | 8446 | |
9abc968f AM |
8447 | { |
8448 | unsigned long t0; | |
8449 | unsigned long t1; | |
8450 | ||
8451 | t0 = bfd_get_32 (output_bfd, contents + rel->r_offset); | |
8452 | t1 = bfd_get_32 (output_bfd, contents + rel->r_offset + 4); | |
8453 | ||
8454 | /* We're clearing the bits for R_PPC_ADDR16_HA | |
8455 | and R_PPC_ADDR16_LO here. */ | |
8456 | t0 &= ~0xffff; | |
8457 | t1 &= ~0xffff; | |
8458 | ||
8459 | /* t0 is HA, t1 is LO */ | |
8460 | relocation += addend; | |
8461 | t0 |= ((relocation + 0x8000) >> 16) & 0xffff; | |
8462 | t1 |= relocation & 0xffff; | |
8463 | ||
8464 | bfd_put_32 (output_bfd, t0, contents + rel->r_offset); | |
8465 | bfd_put_32 (output_bfd, t1, contents + rel->r_offset + 4); | |
9bc4e62b NS |
8466 | |
8467 | /* Rewrite the reloc and convert one of the trailing nop | |
8468 | relocs to describe this relocation. */ | |
8469 | BFD_ASSERT (ELF32_R_TYPE (relend[-1].r_info) == R_PPC_NONE); | |
8470 | /* The relocs are at the bottom 2 bytes */ | |
8471 | rel[0].r_offset += 2; | |
8472 | memmove (rel + 1, rel, (relend - rel - 1) * sizeof (*rel)); | |
8473 | rel[0].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_HA); | |
8474 | rel[1].r_offset += 4; | |
8475 | rel[1].r_info = ELF32_R_INFO (r_symndx, R_PPC_ADDR16_LO); | |
8476 | rel++; | |
9abc968f | 8477 | } |
8517fae7 | 8478 | continue; |
deaaf2f3 | 8479 | |
70bccea4 | 8480 | /* Indirect .sdata relocation. */ |
7619e7c7 | 8481 | case R_PPC_EMB_SDAI16: |
c9a2f333 | 8482 | BFD_ASSERT (htab->sdata[0].section != NULL); |
bd6c6e2b AM |
8483 | if (!is_static_defined (htab->sdata[0].sym)) |
8484 | { | |
8485 | unresolved_reloc = TRUE; | |
8486 | break; | |
8487 | } | |
7619e7c7 | 8488 | relocation |
76750a2f AM |
8489 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[0], |
8490 | h, relocation, rel); | |
bd6c6e2b | 8491 | addend = 0; |
252b5132 RH |
8492 | break; |
8493 | ||
70bccea4 | 8494 | /* Indirect .sdata2 relocation. */ |
7619e7c7 | 8495 | case R_PPC_EMB_SDA2I16: |
c9a2f333 | 8496 | BFD_ASSERT (htab->sdata[1].section != NULL); |
bd6c6e2b AM |
8497 | if (!is_static_defined (htab->sdata[1].sym)) |
8498 | { | |
8499 | unresolved_reloc = TRUE; | |
8500 | break; | |
8501 | } | |
7619e7c7 | 8502 | relocation |
76750a2f AM |
8503 | = elf_finish_pointer_linker_section (input_bfd, &htab->sdata[1], |
8504 | h, relocation, rel); | |
bd6c6e2b | 8505 | addend = 0; |
252b5132 RH |
8506 | break; |
8507 | ||
70bccea4 AM |
8508 | /* Handle the TOC16 reloc. We want to use the offset within the .got |
8509 | section, not the actual VMA. This is appropriate when generating | |
8510 | an embedded ELF object, for which the .got section acts like the | |
8511 | AIX .toc section. */ | |
7619e7c7 | 8512 | case R_PPC_TOC16: /* phony GOT16 relocations */ |
3b4f3a11 AM |
8513 | if (sec == NULL || sec->output_section == NULL) |
8514 | { | |
8515 | unresolved_reloc = TRUE; | |
8516 | break; | |
8517 | } | |
a0f49396 NC |
8518 | BFD_ASSERT (strcmp (bfd_get_section_name (sec->owner, sec), |
8519 | ".got") == 0 | |
8520 | || strcmp (bfd_get_section_name (sec->owner, sec), | |
8521 | ".cgot") == 0); | |
252b5132 | 8522 | |
3b4f3a11 | 8523 | addend -= sec->output_section->vma + sec->output_offset + 0x8000; |
252b5132 RH |
8524 | break; |
8525 | ||
7619e7c7 | 8526 | case R_PPC_PLTREL24: |
f75e0e33 AM |
8527 | if (h != NULL && ifunc == NULL) |
8528 | { | |
8529 | struct plt_entry *ent = find_plt_ent (&h->plt.plist, got2, | |
8530 | info->shared ? addend : 0); | |
8531 | if (ent == NULL | |
8532 | || htab->plt == NULL) | |
8533 | { | |
8534 | /* We didn't make a PLT entry for this symbol. This | |
8535 | happens when statically linking PIC code, or when | |
8536 | using -Bsymbolic. */ | |
8537 | } | |
8538 | else | |
8539 | { | |
8540 | /* Relocation is to the entry for this symbol in the | |
8541 | procedure linkage table. */ | |
8542 | unresolved_reloc = FALSE; | |
8543 | if (htab->plt_type == PLT_NEW) | |
8544 | relocation = (htab->glink->output_section->vma | |
8545 | + htab->glink->output_offset | |
8546 | + ent->glink_offset); | |
8547 | else | |
8548 | relocation = (htab->plt->output_section->vma | |
8549 | + htab->plt->output_offset | |
8550 | + ent->plt.offset); | |
8551 | } | |
8552 | } | |
252b5132 | 8553 | |
f75e0e33 AM |
8554 | /* R_PPC_PLTREL24 is rather special. If non-zero, the |
8555 | addend specifies the GOT pointer offset within .got2. | |
8556 | Don't apply it to the relocation field. */ | |
8557 | addend = 0; | |
8da6118f | 8558 | break; |
252b5132 | 8559 | |
70bccea4 | 8560 | /* Relocate against _SDA_BASE_. */ |
7619e7c7 | 8561 | case R_PPC_SDAREL16: |
252b5132 RH |
8562 | { |
8563 | const char *name; | |
bd6c6e2b | 8564 | struct elf_link_hash_entry *sda = htab->sdata[0].sym; |
252b5132 | 8565 | |
bd6c6e2b AM |
8566 | if (sec == NULL |
8567 | || sec->output_section == NULL | |
8568 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
8569 | { |
8570 | unresolved_reloc = TRUE; | |
8571 | break; | |
8572 | } | |
bd6c6e2b | 8573 | addend -= SYM_VAL (sda); |
3b4f3a11 | 8574 | |
a0f49396 | 8575 | name = bfd_get_section_name (output_bfd, sec->output_section); |
0112cd26 | 8576 | if (! ((CONST_STRNEQ (name, ".sdata") |
5f819128 | 8577 | && (name[6] == 0 || name[6] == '.')) |
0112cd26 | 8578 | || (CONST_STRNEQ (name, ".sbss") |
5f819128 | 8579 | && (name[5] == 0 || name[5] == '.')))) |
252b5132 | 8580 | { |
25f53a85 | 8581 | info->callbacks->einfo |
8de848d8 | 8582 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 8583 | "in the wrong output section (%s)\n"), |
d003868e | 8584 | input_bfd, |
55fd94b0 AM |
8585 | sym_name, |
8586 | howto->name, | |
8587 | name); | |
252b5132 | 8588 | } |
252b5132 RH |
8589 | } |
8590 | break; | |
8591 | ||
70bccea4 | 8592 | /* Relocate against _SDA2_BASE_. */ |
7619e7c7 | 8593 | case R_PPC_EMB_SDA2REL: |
252b5132 RH |
8594 | { |
8595 | const char *name; | |
bd6c6e2b | 8596 | struct elf_link_hash_entry *sda = htab->sdata[1].sym; |
252b5132 | 8597 | |
bd6c6e2b AM |
8598 | if (sec == NULL |
8599 | || sec->output_section == NULL | |
8600 | || !is_static_defined (sda)) | |
3b4f3a11 AM |
8601 | { |
8602 | unresolved_reloc = TRUE; | |
8603 | break; | |
8604 | } | |
bd6c6e2b | 8605 | addend -= SYM_VAL (sda); |
3b4f3a11 | 8606 | |
a0f49396 | 8607 | name = bfd_get_section_name (output_bfd, sec->output_section); |
0112cd26 NC |
8608 | if (! (CONST_STRNEQ (name, ".sdata2") |
8609 | || CONST_STRNEQ (name, ".sbss2"))) | |
252b5132 | 8610 | { |
25f53a85 | 8611 | info->callbacks->einfo |
8de848d8 | 8612 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 8613 | "in the wrong output section (%s)\n"), |
d003868e | 8614 | input_bfd, |
55fd94b0 AM |
8615 | sym_name, |
8616 | howto->name, | |
8617 | name); | |
252b5132 | 8618 | } |
252b5132 RH |
8619 | } |
8620 | break; | |
8621 | ||
b9c361e0 JL |
8622 | case R_PPC_VLE_LO16A: |
8623 | relocation = (relocation + addend) & 0xffff; | |
8624 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8625 | relocation, split16a_type); | |
8626 | continue; | |
8627 | ||
8628 | case R_PPC_VLE_LO16D: | |
8629 | relocation = (relocation + addend) & 0xffff; | |
8630 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8631 | relocation, split16d_type); | |
8632 | continue; | |
8633 | ||
8634 | case R_PPC_VLE_HI16A: | |
8635 | relocation = ((relocation + addend) >> 16) & 0xffff; | |
8636 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8637 | relocation, split16a_type); | |
8638 | continue; | |
8639 | ||
8640 | case R_PPC_VLE_HI16D: | |
8641 | relocation = ((relocation + addend) >> 16) & 0xffff; | |
8642 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8643 | relocation, split16d_type); | |
8644 | continue; | |
8645 | ||
8646 | case R_PPC_VLE_HA16A: | |
8647 | { | |
8648 | bfd_vma value = relocation + addend; | |
8649 | value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); | |
8650 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8651 | value, split16a_type); | |
8652 | } | |
8653 | continue; | |
8654 | ||
8655 | case R_PPC_VLE_HA16D: | |
8656 | { | |
8657 | bfd_vma value = relocation + addend; | |
8658 | value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); | |
8659 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8660 | value, split16d_type); | |
8661 | } | |
8662 | continue; | |
8663 | ||
70bccea4 | 8664 | /* Relocate against either _SDA_BASE_, _SDA2_BASE_, or 0. */ |
7619e7c7 | 8665 | case R_PPC_EMB_SDA21: |
b9c361e0 | 8666 | case R_PPC_VLE_SDA21: |
7619e7c7 | 8667 | case R_PPC_EMB_RELSDA: |
b9c361e0 | 8668 | case R_PPC_VLE_SDA21_LO: |
252b5132 RH |
8669 | { |
8670 | const char *name; | |
8671 | int reg; | |
bd6c6e2b | 8672 | struct elf_link_hash_entry *sda = NULL; |
252b5132 | 8673 | |
3b4f3a11 AM |
8674 | if (sec == NULL || sec->output_section == NULL) |
8675 | { | |
8676 | unresolved_reloc = TRUE; | |
8677 | break; | |
8678 | } | |
8679 | ||
a0f49396 | 8680 | name = bfd_get_section_name (output_bfd, sec->output_section); |
0112cd26 | 8681 | if (((CONST_STRNEQ (name, ".sdata") |
5f819128 | 8682 | && (name[6] == 0 || name[6] == '.')) |
0112cd26 | 8683 | || (CONST_STRNEQ (name, ".sbss") |
5f819128 | 8684 | && (name[5] == 0 || name[5] == '.')))) |
252b5132 RH |
8685 | { |
8686 | reg = 13; | |
bd6c6e2b | 8687 | sda = htab->sdata[0].sym; |
252b5132 | 8688 | } |
0112cd26 NC |
8689 | else if (CONST_STRNEQ (name, ".sdata2") |
8690 | || CONST_STRNEQ (name, ".sbss2")) | |
252b5132 RH |
8691 | { |
8692 | reg = 2; | |
bd6c6e2b | 8693 | sda = htab->sdata[1].sym; |
252b5132 | 8694 | } |
8da6118f KH |
8695 | else if (strcmp (name, ".PPC.EMB.sdata0") == 0 |
8696 | || strcmp (name, ".PPC.EMB.sbss0") == 0) | |
252b5132 RH |
8697 | { |
8698 | reg = 0; | |
8699 | } | |
252b5132 RH |
8700 | else |
8701 | { | |
25f53a85 | 8702 | info->callbacks->einfo |
8de848d8 | 8703 | (_("%P: %B: the target (%s) of a %s relocation is " |
25f53a85 | 8704 | "in the wrong output section (%s)\n"), |
d003868e | 8705 | input_bfd, |
55fd94b0 AM |
8706 | sym_name, |
8707 | howto->name, | |
8708 | name); | |
252b5132 RH |
8709 | |
8710 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 8711 | ret = FALSE; |
252b5132 RH |
8712 | continue; |
8713 | } | |
8714 | ||
bd6c6e2b AM |
8715 | if (sda != NULL) |
8716 | { | |
8717 | if (!is_static_defined (sda)) | |
8718 | { | |
8719 | unresolved_reloc = TRUE; | |
8720 | break; | |
8721 | } | |
8722 | addend -= SYM_VAL (sda); | |
8723 | } | |
8724 | ||
b9c361e0 JL |
8725 | if (reg == 0 |
8726 | && (r_type == R_PPC_VLE_SDA21 | |
8727 | || r_type == R_PPC_VLE_SDA21_LO)) | |
8728 | { | |
8729 | /* Use the split20 format. */ | |
8730 | bfd_vma insn, bits12to15, bits21to31; | |
8731 | bfd_vma value = (relocation + rel->r_offset) & 0xffff; | |
8732 | /* Propagate sign bit, if necessary. */ | |
8733 | insn = (value & 0x8000) ? 0x70107800 : 0x70000000; | |
8734 | bits12to15 = value & 0x700; | |
8735 | bits21to31 = value & 0x7ff; | |
8736 | insn |= bits12to15; | |
8737 | insn |= bits21to31; | |
8738 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
8739 | continue; | |
8740 | } | |
8741 | else if (r_type == R_PPC_EMB_SDA21 | |
8742 | || r_type == R_PPC_VLE_SDA21 | |
8743 | || r_type == R_PPC_VLE_SDA21_LO) | |
91d6fa6a NC |
8744 | { |
8745 | bfd_vma insn; /* Fill in register field. */ | |
8746 | ||
7619e7c7 | 8747 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
252b5132 | 8748 | insn = (insn & ~RA_REGISTER_MASK) | (reg << RA_REGISTER_SHIFT); |
7619e7c7 | 8749 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
252b5132 RH |
8750 | } |
8751 | } | |
8752 | break; | |
8753 | ||
b9c361e0 JL |
8754 | case R_PPC_VLE_SDAREL_LO16A: |
8755 | case R_PPC_VLE_SDAREL_LO16D: | |
8756 | case R_PPC_VLE_SDAREL_HI16A: | |
8757 | case R_PPC_VLE_SDAREL_HI16D: | |
8758 | case R_PPC_VLE_SDAREL_HA16A: | |
8759 | case R_PPC_VLE_SDAREL_HA16D: | |
8760 | { | |
8761 | bfd_vma value; | |
8762 | const char *name; | |
8763 | //int reg; | |
8764 | struct elf_link_hash_entry *sda = NULL; | |
8765 | ||
8766 | if (sec == NULL || sec->output_section == NULL) | |
8767 | { | |
8768 | unresolved_reloc = TRUE; | |
8769 | break; | |
8770 | } | |
8771 | ||
a0f49396 | 8772 | name = bfd_get_section_name (output_bfd, sec->output_section); |
b9c361e0 JL |
8773 | if (((CONST_STRNEQ (name, ".sdata") |
8774 | && (name[6] == 0 || name[6] == '.')) | |
8775 | || (CONST_STRNEQ (name, ".sbss") | |
8776 | && (name[5] == 0 || name[5] == '.')))) | |
8777 | { | |
8778 | //reg = 13; | |
8779 | sda = htab->sdata[0].sym; | |
8780 | } | |
8781 | else if (CONST_STRNEQ (name, ".sdata2") | |
8782 | || CONST_STRNEQ (name, ".sbss2")) | |
8783 | { | |
8784 | //reg = 2; | |
8785 | sda = htab->sdata[1].sym; | |
8786 | } | |
8787 | else | |
8788 | { | |
8789 | (*_bfd_error_handler) | |
8790 | (_("%B: the target (%s) of a %s relocation is " | |
8791 | "in the wrong output section (%s)"), | |
8792 | input_bfd, | |
8793 | sym_name, | |
8794 | howto->name, | |
8795 | name); | |
8796 | ||
8797 | bfd_set_error (bfd_error_bad_value); | |
8798 | ret = FALSE; | |
8799 | continue; | |
8800 | } | |
8801 | ||
8802 | if (sda != NULL) | |
8803 | { | |
8804 | if (!is_static_defined (sda)) | |
8805 | { | |
8806 | unresolved_reloc = TRUE; | |
8807 | break; | |
8808 | } | |
8809 | } | |
8810 | ||
8811 | value = sda->root.u.def.section->output_section->vma | |
8812 | + sda->root.u.def.section->output_offset; | |
8813 | ||
8814 | if (r_type == R_PPC_VLE_SDAREL_LO16A) | |
8815 | { | |
8816 | value = (value + addend) & 0xffff; | |
8817 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8818 | value, split16a_type); | |
8819 | } | |
8820 | else if (r_type == R_PPC_VLE_SDAREL_LO16D) | |
8821 | { | |
8822 | value = (value + addend) & 0xffff; | |
8823 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8824 | value, split16d_type); | |
8825 | } | |
8826 | else if (r_type == R_PPC_VLE_SDAREL_HI16A) | |
8827 | { | |
8828 | value = ((value + addend) >> 16) & 0xffff; | |
8829 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8830 | value, split16a_type); | |
8831 | } | |
8832 | else if (r_type == R_PPC_VLE_SDAREL_HI16D) | |
8833 | { | |
8834 | value = ((value + addend) >> 16) & 0xffff; | |
8835 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8836 | value, split16d_type); | |
8837 | } | |
8838 | else if (r_type == R_PPC_VLE_SDAREL_HA16A) | |
8839 | { | |
8840 | value += addend; | |
8841 | value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); | |
8842 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8843 | value, split16a_type); | |
8844 | } | |
8845 | else if (r_type == R_PPC_VLE_SDAREL_HA16D) | |
8846 | { | |
8847 | value += addend; | |
8848 | value = (((value >> 16) + ((value & 0x8000) ? 1 : 0)) & 0xffff); | |
8849 | ppc_elf_vle_split16 (output_bfd, contents, rel->r_offset, | |
8850 | value, split16d_type); | |
8851 | } | |
8852 | } | |
8853 | continue; | |
8854 | ||
70bccea4 | 8855 | /* Relocate against the beginning of the section. */ |
7619e7c7 AM |
8856 | case R_PPC_SECTOFF: |
8857 | case R_PPC_SECTOFF_LO: | |
8858 | case R_PPC_SECTOFF_HI: | |
8859 | case R_PPC_SECTOFF_HA: | |
3b4f3a11 AM |
8860 | if (sec == NULL || sec->output_section == NULL) |
8861 | { | |
8862 | unresolved_reloc = TRUE; | |
8863 | break; | |
8864 | } | |
252b5132 | 8865 | addend -= sec->output_section->vma; |
252b5132 RH |
8866 | break; |
8867 | ||
70bccea4 | 8868 | /* Negative relocations. */ |
7619e7c7 AM |
8869 | case R_PPC_EMB_NADDR32: |
8870 | case R_PPC_EMB_NADDR16: | |
8871 | case R_PPC_EMB_NADDR16_LO: | |
8872 | case R_PPC_EMB_NADDR16_HI: | |
8873 | case R_PPC_EMB_NADDR16_HA: | |
8da6118f | 8874 | addend -= 2 * relocation; |
252b5132 RH |
8875 | break; |
8876 | ||
7619e7c7 AM |
8877 | case R_PPC_COPY: |
8878 | case R_PPC_GLOB_DAT: | |
8879 | case R_PPC_JMP_SLOT: | |
8880 | case R_PPC_RELATIVE: | |
e054468f | 8881 | case R_PPC_IRELATIVE: |
7619e7c7 AM |
8882 | case R_PPC_PLT32: |
8883 | case R_PPC_PLTREL32: | |
8884 | case R_PPC_PLT16_LO: | |
8885 | case R_PPC_PLT16_HI: | |
8886 | case R_PPC_PLT16_HA: | |
8887 | case R_PPC_ADDR30: | |
8888 | case R_PPC_EMB_RELSEC16: | |
8889 | case R_PPC_EMB_RELST_LO: | |
8890 | case R_PPC_EMB_RELST_HI: | |
8891 | case R_PPC_EMB_RELST_HA: | |
8892 | case R_PPC_EMB_BIT_FLD: | |
25f53a85 | 8893 | info->callbacks->einfo |
8de848d8 | 8894 | (_("%P: %B: relocation %s is not yet supported for symbol %s\n"), |
d003868e | 8895 | input_bfd, |
7619e7c7 AM |
8896 | howto->name, |
8897 | sym_name); | |
252b5132 RH |
8898 | |
8899 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 8900 | ret = FALSE; |
252b5132 | 8901 | continue; |
7619e7c7 | 8902 | } |
252b5132 | 8903 | |
7619e7c7 AM |
8904 | /* Do any further special processing. */ |
8905 | switch (r_type) | |
8906 | { | |
8907 | default: | |
8908 | break; | |
8909 | ||
8910 | case R_PPC_ADDR16_HA: | |
d7128ce4 | 8911 | case R_PPC_REL16_HA: |
7619e7c7 AM |
8912 | case R_PPC_SECTOFF_HA: |
8913 | case R_PPC_TPREL16_HA: | |
8914 | case R_PPC_DTPREL16_HA: | |
7619e7c7 AM |
8915 | case R_PPC_EMB_NADDR16_HA: |
8916 | case R_PPC_EMB_RELST_HA: | |
8917 | /* It's just possible that this symbol is a weak symbol | |
7b609f53 | 8918 | that's not actually defined anywhere. In that case, |
7619e7c7 AM |
8919 | 'sec' would be NULL, and we should leave the symbol |
8920 | alone (it will be set to zero elsewhere in the link). */ | |
5c5f6e17 AM |
8921 | if (sec == NULL) |
8922 | break; | |
8923 | /* Fall thru */ | |
8924 | ||
8925 | case R_PPC_PLT16_HA: | |
8926 | case R_PPC_GOT16_HA: | |
8927 | case R_PPC_GOT_TLSGD16_HA: | |
8928 | case R_PPC_GOT_TLSLD16_HA: | |
8929 | case R_PPC_GOT_TPREL16_HA: | |
8930 | case R_PPC_GOT_DTPREL16_HA: | |
8931 | /* Add 0x10000 if sign bit in 0:15 is set. | |
8932 | Bits 0:15 are not used. */ | |
8933 | addend += 0x8000; | |
7619e7c7 | 8934 | break; |
1fe532cf AM |
8935 | |
8936 | case R_PPC_ADDR16: | |
8937 | case R_PPC_ADDR16_LO: | |
8938 | case R_PPC_GOT16: | |
8939 | case R_PPC_GOT16_LO: | |
8940 | case R_PPC_SDAREL16: | |
8941 | case R_PPC_SECTOFF: | |
8942 | case R_PPC_SECTOFF_LO: | |
8943 | case R_PPC_DTPREL16: | |
8944 | case R_PPC_DTPREL16_LO: | |
8945 | case R_PPC_TPREL16: | |
8946 | case R_PPC_TPREL16_LO: | |
8947 | case R_PPC_GOT_TLSGD16: | |
8948 | case R_PPC_GOT_TLSGD16_LO: | |
8949 | case R_PPC_GOT_TLSLD16: | |
8950 | case R_PPC_GOT_TLSLD16_LO: | |
8951 | case R_PPC_GOT_DTPREL16: | |
8952 | case R_PPC_GOT_DTPREL16_LO: | |
8953 | case R_PPC_GOT_TPREL16: | |
8954 | case R_PPC_GOT_TPREL16_LO: | |
8955 | { | |
8956 | /* The 32-bit ABI lacks proper relocations to deal with | |
8957 | certain 64-bit instructions. Prevent damage to bits | |
8958 | that make up part of the insn opcode. */ | |
8959 | unsigned int insn, mask, lobit; | |
8960 | ||
8961 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
8962 | mask = 0; | |
8963 | if (is_insn_ds_form (insn)) | |
8964 | mask = 3; | |
8965 | else if (is_insn_dq_form (insn)) | |
8966 | mask = 15; | |
8967 | else | |
8968 | break; | |
8969 | lobit = mask & (relocation + addend); | |
8970 | if (lobit != 0) | |
8971 | { | |
8972 | addend -= lobit; | |
8973 | info->callbacks->einfo | |
8974 | (_("%P: %H: error: %s against `%s' not a multiple of %u\n"), | |
8975 | input_bfd, input_section, rel->r_offset, | |
8976 | howto->name, sym_name, mask + 1); | |
8977 | bfd_set_error (bfd_error_bad_value); | |
8978 | ret = FALSE; | |
8979 | } | |
8980 | addend += insn & mask; | |
8981 | } | |
8982 | break; | |
252b5132 RH |
8983 | } |
8984 | ||
252b5132 | 8985 | #ifdef DEBUG |
55fd94b0 AM |
8986 | fprintf (stderr, "\ttype = %s (%d), name = %s, symbol index = %ld, " |
8987 | "offset = %ld, addend = %ld\n", | |
252b5132 | 8988 | howto->name, |
8da6118f | 8989 | (int) r_type, |
252b5132 RH |
8990 | sym_name, |
8991 | r_symndx, | |
7619e7c7 | 8992 | (long) rel->r_offset, |
8da6118f | 8993 | (long) addend); |
252b5132 RH |
8994 | #endif |
8995 | ||
7619e7c7 AM |
8996 | if (unresolved_reloc |
8997 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
8998 | && h->def_dynamic) |
8999 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
9000 | rel->r_offset) != (bfd_vma) -1) | |
7619e7c7 | 9001 | { |
25f53a85 | 9002 | info->callbacks->einfo |
8de848d8 | 9003 | (_("%P: %H: unresolvable %s relocation against symbol `%s'\n"), |
25f53a85 | 9004 | input_bfd, input_section, rel->r_offset, |
7b609f53 | 9005 | howto->name, |
7619e7c7 AM |
9006 | sym_name); |
9007 | ret = FALSE; | |
9008 | } | |
9009 | ||
252b5132 RH |
9010 | r = _bfd_final_link_relocate (howto, |
9011 | input_bfd, | |
9012 | input_section, | |
9013 | contents, | |
7619e7c7 | 9014 | rel->r_offset, |
252b5132 RH |
9015 | relocation, |
9016 | addend); | |
9017 | ||
7619e7c7 | 9018 | if (r != bfd_reloc_ok) |
252b5132 | 9019 | { |
7619e7c7 | 9020 | if (r == bfd_reloc_overflow) |
252b5132 | 9021 | { |
7619e7c7 AM |
9022 | if (warned) |
9023 | continue; | |
9024 | if (h != NULL | |
9025 | && h->root.type == bfd_link_hash_undefweak | |
dc1bc0c9 RH |
9026 | && howto->pc_relative) |
9027 | { | |
9028 | /* Assume this is a call protected by other code that | |
9029 | detect the symbol is undefined. If this is the case, | |
9030 | we can safely ignore the overflow. If not, the | |
9031 | program is hosed anyway, and a little warning isn't | |
9032 | going to help. */ | |
252b5132 | 9033 | |
dc1bc0c9 RH |
9034 | continue; |
9035 | } | |
252b5132 | 9036 | |
7619e7c7 | 9037 | if (! (*info->callbacks->reloc_overflow) (info, |
dfeffb9f | 9038 | (h ? &h->root : NULL), |
7619e7c7 AM |
9039 | sym_name, |
9040 | howto->name, | |
9041 | rel->r_addend, | |
9042 | input_bfd, | |
9043 | input_section, | |
9044 | rel->r_offset)) | |
9045 | return FALSE; | |
dc1bc0c9 RH |
9046 | } |
9047 | else | |
9048 | { | |
25f53a85 | 9049 | info->callbacks->einfo |
8de848d8 | 9050 | (_("%P: %H: %s reloc against `%s': error %d\n"), |
25f53a85 AM |
9051 | input_bfd, input_section, rel->r_offset, |
9052 | howto->name, sym_name, (int) r); | |
7619e7c7 | 9053 | ret = FALSE; |
252b5132 RH |
9054 | } |
9055 | } | |
9056 | } | |
9057 | ||
252b5132 RH |
9058 | #ifdef DEBUG |
9059 | fprintf (stderr, "\n"); | |
9060 | #endif | |
9061 | ||
9062 | return ret; | |
9063 | } | |
252b5132 | 9064 | \f |
25dbc73a AM |
9065 | /* Finish up dynamic symbol handling. We set the contents of various |
9066 | dynamic sections here. */ | |
c5fccbec | 9067 | |
b34976b6 | 9068 | static bfd_boolean |
25dbc73a AM |
9069 | ppc_elf_finish_dynamic_symbol (bfd *output_bfd, |
9070 | struct bfd_link_info *info, | |
9071 | struct elf_link_hash_entry *h, | |
9072 | Elf_Internal_Sym *sym) | |
e1a9cb8e | 9073 | { |
25dbc73a | 9074 | struct ppc_elf_link_hash_table *htab; |
a6aa5195 AM |
9075 | struct plt_entry *ent; |
9076 | bfd_boolean doneone; | |
e1a9cb8e | 9077 | |
25dbc73a AM |
9078 | #ifdef DEBUG |
9079 | fprintf (stderr, "ppc_elf_finish_dynamic_symbol called for %s", | |
9080 | h->root.root.string); | |
9081 | #endif | |
e1a9cb8e | 9082 | |
25dbc73a AM |
9083 | htab = ppc_elf_hash_table (info); |
9084 | BFD_ASSERT (htab->elf.dynobj != NULL); | |
e1a9cb8e | 9085 | |
a6aa5195 AM |
9086 | doneone = FALSE; |
9087 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
9088 | if (ent->plt.offset != (bfd_vma) -1) | |
9089 | { | |
9090 | if (!doneone) | |
9091 | { | |
9092 | Elf_Internal_Rela rela; | |
9093 | bfd_byte *loc; | |
9094 | bfd_vma reloc_index; | |
e1a9cb8e | 9095 | |
e054468f | 9096 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
9097 | || !htab->elf.dynamic_sections_created |
9098 | || h->dynindx == -1) | |
9d8504b1 PB |
9099 | reloc_index = ent->plt.offset / 4; |
9100 | else | |
9101 | { | |
9102 | reloc_index = ((ent->plt.offset - htab->plt_initial_entry_size) | |
9103 | / htab->plt_slot_size); | |
9104 | if (reloc_index > PLT_NUM_SINGLE_ENTRIES | |
4a3dc543 | 9105 | && htab->plt_type == PLT_OLD) |
9d8504b1 PB |
9106 | reloc_index -= (reloc_index - PLT_NUM_SINGLE_ENTRIES) / 2; |
9107 | } | |
9108 | ||
a6aa5195 AM |
9109 | /* This symbol has an entry in the procedure linkage table. |
9110 | Set it up. */ | |
e054468f | 9111 | if (htab->plt_type == PLT_VXWORKS |
25f23106 AM |
9112 | && htab->elf.dynamic_sections_created |
9113 | && h->dynindx != -1) | |
a6aa5195 | 9114 | { |
9d8504b1 PB |
9115 | bfd_vma got_offset; |
9116 | const bfd_vma *plt_entry; | |
5b914448 | 9117 | |
9d8504b1 PB |
9118 | /* The first three entries in .got.plt are reserved. */ |
9119 | got_offset = (reloc_index + 3) * 4; | |
9120 | ||
9121 | /* Use the right PLT. */ | |
9122 | plt_entry = info->shared ? ppc_elf_vxworks_pic_plt_entry | |
9123 | : ppc_elf_vxworks_plt_entry; | |
9124 | ||
9125 | /* Fill in the .plt on VxWorks. */ | |
9126 | if (info->shared) | |
9127 | { | |
9d8504b1 | 9128 | bfd_put_32 (output_bfd, |
e87d4038 | 9129 | plt_entry[0] | PPC_HA (got_offset), |
9d8504b1 PB |
9130 | htab->plt->contents + ent->plt.offset + 0); |
9131 | bfd_put_32 (output_bfd, | |
e87d4038 | 9132 | plt_entry[1] | PPC_LO (got_offset), |
9d8504b1 PB |
9133 | htab->plt->contents + ent->plt.offset + 4); |
9134 | } | |
9135 | else | |
9136 | { | |
e87d4038 | 9137 | bfd_vma got_loc = got_offset + SYM_VAL (htab->elf.hgot); |
9d8504b1 PB |
9138 | |
9139 | bfd_put_32 (output_bfd, | |
e87d4038 | 9140 | plt_entry[0] | PPC_HA (got_loc), |
9d8504b1 PB |
9141 | htab->plt->contents + ent->plt.offset + 0); |
9142 | bfd_put_32 (output_bfd, | |
e87d4038 | 9143 | plt_entry[1] | PPC_LO (got_loc), |
9d8504b1 PB |
9144 | htab->plt->contents + ent->plt.offset + 4); |
9145 | } | |
9146 | ||
9147 | bfd_put_32 (output_bfd, plt_entry[2], | |
9148 | htab->plt->contents + ent->plt.offset + 8); | |
9149 | bfd_put_32 (output_bfd, plt_entry[3], | |
9150 | htab->plt->contents + ent->plt.offset + 12); | |
9151 | ||
9152 | /* This instruction is an immediate load. The value loaded is | |
9153 | the byte offset of the R_PPC_JMP_SLOT relocation from the | |
9154 | start of the .rela.plt section. The value is stored in the | |
9155 | low-order 16 bits of the load instruction. */ | |
9156 | /* NOTE: It appears that this is now an index rather than a | |
9157 | prescaled offset. */ | |
5b914448 | 9158 | bfd_put_32 (output_bfd, |
9d8504b1 PB |
9159 | plt_entry[4] | reloc_index, |
9160 | htab->plt->contents + ent->plt.offset + 16); | |
9161 | /* This instruction is a PC-relative branch whose target is | |
9162 | the start of the PLT section. The address of this branch | |
9163 | instruction is 20 bytes beyond the start of this PLT entry. | |
9164 | The address is encoded in bits 6-29, inclusive. The value | |
9165 | stored is right-shifted by two bits, permitting a 26-bit | |
9166 | offset. */ | |
5b914448 AM |
9167 | bfd_put_32 (output_bfd, |
9168 | (plt_entry[5] | |
9d8504b1 PB |
9169 | | (-(ent->plt.offset + 20) & 0x03fffffc)), |
9170 | htab->plt->contents + ent->plt.offset + 20); | |
9171 | bfd_put_32 (output_bfd, plt_entry[6], | |
9172 | htab->plt->contents + ent->plt.offset + 24); | |
9173 | bfd_put_32 (output_bfd, plt_entry[7], | |
9174 | htab->plt->contents + ent->plt.offset + 28); | |
9175 | ||
9176 | /* Fill in the GOT entry corresponding to this PLT slot with | |
a8685210 | 9177 | the address immediately after the "bctr" instruction |
9d8504b1 PB |
9178 | in this PLT entry. */ |
9179 | bfd_put_32 (output_bfd, (htab->plt->output_section->vma | |
9180 | + htab->plt->output_offset | |
9181 | + ent->plt.offset + 16), | |
9182 | htab->sgotplt->contents + got_offset); | |
9183 | ||
9184 | if (!info->shared) | |
9185 | { | |
9186 | /* Fill in a couple of entries in .rela.plt.unloaded. */ | |
9187 | loc = htab->srelplt2->contents | |
9188 | + ((VXWORKS_PLTRESOLVE_RELOCS + reloc_index | |
9189 | * VXWORKS_PLT_NON_JMP_SLOT_RELOCS) | |
9190 | * sizeof (Elf32_External_Rela)); | |
9191 | ||
9192 | /* Provide the @ha relocation for the first instruction. */ | |
9193 | rela.r_offset = (htab->plt->output_section->vma | |
9194 | + htab->plt->output_offset | |
9195 | + ent->plt.offset + 2); | |
636ce3f5 | 9196 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
9197 | R_PPC_ADDR16_HA); |
9198 | rela.r_addend = got_offset; | |
9199 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9200 | loc += sizeof (Elf32_External_Rela); | |
9201 | ||
9202 | /* Provide the @l relocation for the second instruction. */ | |
9203 | rela.r_offset = (htab->plt->output_section->vma | |
9204 | + htab->plt->output_offset | |
9205 | + ent->plt.offset + 6); | |
636ce3f5 | 9206 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, |
9d8504b1 PB |
9207 | R_PPC_ADDR16_LO); |
9208 | rela.r_addend = got_offset; | |
9209 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9210 | loc += sizeof (Elf32_External_Rela); | |
9211 | ||
9212 | /* Provide a relocation for the GOT entry corresponding to this | |
9213 | PLT slot. Point it at the middle of the .plt entry. */ | |
9214 | rela.r_offset = (htab->sgotplt->output_section->vma | |
9215 | + htab->sgotplt->output_offset | |
9216 | + got_offset); | |
7325306f | 9217 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, |
9d8504b1 PB |
9218 | R_PPC_ADDR32); |
9219 | rela.r_addend = ent->plt.offset + 16; | |
9220 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9221 | } | |
9222 | ||
9223 | /* VxWorks uses non-standard semantics for R_PPC_JMP_SLOT. | |
9224 | In particular, the offset for the relocation is not the | |
9225 | address of the PLT entry for this function, as specified | |
9226 | by the ABI. Instead, the offset is set to the address of | |
9227 | the GOT slot for this function. See EABI 4.4.4.1. */ | |
9228 | rela.r_offset = (htab->sgotplt->output_section->vma | |
9229 | + htab->sgotplt->output_offset | |
9230 | + got_offset); | |
9231 | ||
a6aa5195 AM |
9232 | } |
9233 | else | |
9234 | { | |
e054468f | 9235 | asection *splt = htab->plt; |
25f23106 AM |
9236 | if (!htab->elf.dynamic_sections_created |
9237 | || h->dynindx == -1) | |
e054468f AM |
9238 | splt = htab->iplt; |
9239 | ||
9240 | rela.r_offset = (splt->output_section->vma | |
9241 | + splt->output_offset | |
9d8504b1 | 9242 | + ent->plt.offset); |
e054468f | 9243 | if (htab->plt_type == PLT_OLD |
25f23106 AM |
9244 | || !htab->elf.dynamic_sections_created |
9245 | || h->dynindx == -1) | |
9d8504b1 PB |
9246 | { |
9247 | /* We don't need to fill in the .plt. The ppc dynamic | |
9248 | linker will fill it in. */ | |
9249 | } | |
9250 | else | |
9251 | { | |
9252 | bfd_vma val = (htab->glink_pltresolve + ent->plt.offset | |
9253 | + htab->glink->output_section->vma | |
9254 | + htab->glink->output_offset); | |
9255 | bfd_put_32 (output_bfd, val, | |
e054468f | 9256 | splt->contents + ent->plt.offset); |
9d8504b1 | 9257 | } |
a6aa5195 | 9258 | } |
e1a9cb8e | 9259 | |
a6aa5195 | 9260 | /* Fill in the entry in the .rela.plt section. */ |
a6aa5195 | 9261 | rela.r_addend = 0; |
e054468f AM |
9262 | if (!htab->elf.dynamic_sections_created |
9263 | || h->dynindx == -1) | |
9264 | { | |
9265 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
9266 | && h->def_regular | |
9267 | && (h->root.type == bfd_link_hash_defined | |
9268 | || h->root.type == bfd_link_hash_defweak)); | |
9269 | rela.r_info = ELF32_R_INFO (0, R_PPC_IRELATIVE); | |
9270 | rela.r_addend = SYM_VAL (h); | |
9271 | } | |
9272 | else | |
9273 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_JMP_SLOT); | |
e1a9cb8e | 9274 | |
25f23106 AM |
9275 | if (!htab->elf.dynamic_sections_created |
9276 | || h->dynindx == -1) | |
9277 | loc = (htab->reliplt->contents | |
9278 | + (htab->reliplt->reloc_count++ | |
9279 | * sizeof (Elf32_External_Rela))); | |
e054468f | 9280 | else |
25f23106 AM |
9281 | loc = (htab->relplt->contents |
9282 | + reloc_index * sizeof (Elf32_External_Rela)); | |
a6aa5195 | 9283 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
e1a9cb8e | 9284 | |
a6aa5195 AM |
9285 | if (!h->def_regular) |
9286 | { | |
0eb4a168 AM |
9287 | /* Mark the symbol as undefined, rather than as |
9288 | defined in the .plt section. Leave the value if | |
9289 | there were any relocations where pointer equality | |
9290 | matters (this is a clue for the dynamic linker, to | |
9291 | make function pointer comparisons work between an | |
9292 | application and shared library), otherwise set it | |
9293 | to zero. */ | |
a6aa5195 | 9294 | sym->st_shndx = SHN_UNDEF; |
0eb4a168 | 9295 | if (!h->pointer_equality_needed) |
a6aa5195 | 9296 | sym->st_value = 0; |
0eb4a168 AM |
9297 | else if (!h->ref_regular_nonweak) |
9298 | { | |
625af618 AM |
9299 | /* This breaks function pointer comparisons, but |
9300 | that is better than breaking tests for a NULL | |
0eb4a168 | 9301 | function pointer. */ |
0eb4a168 AM |
9302 | sym->st_value = 0; |
9303 | } | |
a6aa5195 | 9304 | } |
de972ffa AM |
9305 | else if (h->type == STT_GNU_IFUNC |
9306 | && !info->shared) | |
9307 | { | |
9308 | /* Set the value of ifunc symbols in a non-pie | |
9309 | executable to the glink entry. This is to avoid | |
9310 | text relocations. We can't do this for ifunc in | |
9311 | allocate_dynrelocs, as we do for normal dynamic | |
9312 | function symbols with plt entries, because we need | |
9313 | to keep the original value around for the ifunc | |
9314 | relocation. */ | |
9315 | sym->st_shndx = (_bfd_elf_section_from_bfd_section | |
9316 | (output_bfd, htab->glink->output_section)); | |
5b914448 AM |
9317 | sym->st_value = (ent->glink_offset |
9318 | + htab->glink->output_offset | |
de972ffa AM |
9319 | + htab->glink->output_section->vma); |
9320 | } | |
a6aa5195 AM |
9321 | doneone = TRUE; |
9322 | } | |
e1a9cb8e | 9323 | |
e054468f | 9324 | if (htab->plt_type == PLT_NEW |
25f23106 AM |
9325 | || !htab->elf.dynamic_sections_created |
9326 | || h->dynindx == -1) | |
a6aa5195 | 9327 | { |
a7f2871e | 9328 | unsigned char *p; |
e054468f | 9329 | asection *splt = htab->plt; |
25f23106 AM |
9330 | if (!htab->elf.dynamic_sections_created |
9331 | || h->dynindx == -1) | |
e054468f | 9332 | splt = htab->iplt; |
e1a9cb8e | 9333 | |
a7f2871e AM |
9334 | p = (unsigned char *) htab->glink->contents + ent->glink_offset; |
9335 | ||
9336 | if (h == htab->tls_get_addr && !htab->no_tls_get_addr_opt) | |
9337 | { | |
9338 | bfd_put_32 (output_bfd, LWZ_11_3, p); | |
9339 | p += 4; | |
9340 | bfd_put_32 (output_bfd, LWZ_12_3 + 4, p); | |
9341 | p += 4; | |
9342 | bfd_put_32 (output_bfd, MR_0_3, p); | |
9343 | p += 4; | |
9344 | bfd_put_32 (output_bfd, CMPWI_11_0, p); | |
9345 | p += 4; | |
9346 | bfd_put_32 (output_bfd, ADD_3_12_2, p); | |
9347 | p += 4; | |
9348 | bfd_put_32 (output_bfd, BEQLR, p); | |
9349 | p += 4; | |
9350 | bfd_put_32 (output_bfd, MR_3_0, p); | |
9351 | p += 4; | |
9352 | bfd_put_32 (output_bfd, NOP, p); | |
9353 | p += 4; | |
9354 | } | |
9355 | ||
9356 | write_glink_stub (ent, splt, p, info); | |
e1a9cb8e | 9357 | |
a877a2b6 | 9358 | if (!info->shared) |
e054468f AM |
9359 | /* We only need one non-PIC glink stub. */ |
9360 | break; | |
a6aa5195 AM |
9361 | } |
9362 | else | |
9363 | break; | |
9364 | } | |
e1a9cb8e | 9365 | |
25dbc73a AM |
9366 | if (h->needs_copy) |
9367 | { | |
9368 | asection *s; | |
9369 | Elf_Internal_Rela rela; | |
9370 | bfd_byte *loc; | |
e1a9cb8e | 9371 | |
25dbc73a | 9372 | /* This symbols needs a copy reloc. Set it up. */ |
e1a9cb8e | 9373 | |
25dbc73a AM |
9374 | #ifdef DEBUG |
9375 | fprintf (stderr, ", copy"); | |
9376 | #endif | |
e1a9cb8e | 9377 | |
25dbc73a | 9378 | BFD_ASSERT (h->dynindx != -1); |
86bbe32f | 9379 | |
4dc4a9a5 | 9380 | if (ppc_elf_hash_entry (h)->has_sda_refs) |
25dbc73a AM |
9381 | s = htab->relsbss; |
9382 | else | |
9383 | s = htab->relbss; | |
9384 | BFD_ASSERT (s != NULL); | |
e1a9cb8e | 9385 | |
e87d4038 | 9386 | rela.r_offset = SYM_VAL (h); |
25dbc73a AM |
9387 | rela.r_info = ELF32_R_INFO (h->dynindx, R_PPC_COPY); |
9388 | rela.r_addend = 0; | |
9389 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
9390 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9391 | } | |
e1a9cb8e | 9392 | |
25dbc73a AM |
9393 | #ifdef DEBUG |
9394 | fprintf (stderr, "\n"); | |
9395 | #endif | |
e1a9cb8e | 9396 | |
25dbc73a AM |
9397 | return TRUE; |
9398 | } | |
9399 | \f | |
9400 | static enum elf_reloc_type_class | |
7e612e98 AM |
9401 | ppc_elf_reloc_type_class (const struct bfd_link_info *info, |
9402 | const asection *rel_sec, | |
9403 | const Elf_Internal_Rela *rela) | |
e1a9cb8e | 9404 | { |
7e612e98 AM |
9405 | struct ppc_elf_link_hash_table *htab = ppc_elf_hash_table (info); |
9406 | ||
9407 | if (rel_sec == htab->reliplt) | |
9408 | return reloc_class_ifunc; | |
9409 | ||
25dbc73a AM |
9410 | switch (ELF32_R_TYPE (rela->r_info)) |
9411 | { | |
9412 | case R_PPC_RELATIVE: | |
9413 | return reloc_class_relative; | |
25dbc73a AM |
9414 | case R_PPC_JMP_SLOT: |
9415 | return reloc_class_plt; | |
9416 | case R_PPC_COPY: | |
9417 | return reloc_class_copy; | |
9418 | default: | |
9419 | return reloc_class_normal; | |
9420 | } | |
e1a9cb8e | 9421 | } |
25dbc73a AM |
9422 | \f |
9423 | /* Finish up the dynamic sections. */ | |
e1a9cb8e | 9424 | |
25dbc73a AM |
9425 | static bfd_boolean |
9426 | ppc_elf_finish_dynamic_sections (bfd *output_bfd, | |
9427 | struct bfd_link_info *info) | |
e1a9cb8e | 9428 | { |
25dbc73a | 9429 | asection *sdyn; |
9d8504b1 | 9430 | asection *splt; |
25dbc73a | 9431 | struct ppc_elf_link_hash_table *htab; |
1fe44d79 | 9432 | bfd_vma got; |
e87d4038 AM |
9433 | bfd *dynobj; |
9434 | bfd_boolean ret = TRUE; | |
e1a9cb8e | 9435 | |
25dbc73a AM |
9436 | #ifdef DEBUG |
9437 | fprintf (stderr, "ppc_elf_finish_dynamic_sections called\n"); | |
9438 | #endif | |
6b0817e5 | 9439 | |
25dbc73a | 9440 | htab = ppc_elf_hash_table (info); |
9d8504b1 | 9441 | dynobj = elf_hash_table (info)->dynobj; |
3d4d4302 | 9442 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
9d8504b1 | 9443 | if (htab->is_vxworks) |
3d4d4302 | 9444 | splt = bfd_get_linker_section (dynobj, ".plt"); |
9d8504b1 PB |
9445 | else |
9446 | splt = NULL; | |
e1a9cb8e | 9447 | |
1fe44d79 AM |
9448 | got = 0; |
9449 | if (htab->elf.hgot != NULL) | |
e87d4038 | 9450 | got = SYM_VAL (htab->elf.hgot); |
1fe44d79 | 9451 | |
25dbc73a | 9452 | if (htab->elf.dynamic_sections_created) |
e1a9cb8e | 9453 | { |
25dbc73a | 9454 | Elf32_External_Dyn *dyncon, *dynconend; |
e1a9cb8e | 9455 | |
25dbc73a | 9456 | BFD_ASSERT (htab->plt != NULL && sdyn != NULL); |
86bbe32f | 9457 | |
25dbc73a AM |
9458 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
9459 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
9460 | for (; dyncon < dynconend; dyncon++) | |
9461 | { | |
9462 | Elf_Internal_Dyn dyn; | |
9463 | asection *s; | |
e1a9cb8e | 9464 | |
9d8504b1 | 9465 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
86bbe32f | 9466 | |
25dbc73a AM |
9467 | switch (dyn.d_tag) |
9468 | { | |
9469 | case DT_PLTGOT: | |
9d8504b1 PB |
9470 | if (htab->is_vxworks) |
9471 | s = htab->sgotplt; | |
9472 | else | |
9473 | s = htab->plt; | |
25dbc73a AM |
9474 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
9475 | break; | |
86bbe32f | 9476 | |
25dbc73a AM |
9477 | case DT_PLTRELSZ: |
9478 | dyn.d_un.d_val = htab->relplt->size; | |
9479 | break; | |
e1a9cb8e | 9480 | |
25dbc73a AM |
9481 | case DT_JMPREL: |
9482 | s = htab->relplt; | |
9483 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
9484 | break; | |
2f89ff8d | 9485 | |
1fe44d79 AM |
9486 | case DT_PPC_GOT: |
9487 | dyn.d_un.d_ptr = got; | |
d7128ce4 AM |
9488 | break; |
9489 | ||
9d8504b1 PB |
9490 | case DT_RELASZ: |
9491 | if (htab->is_vxworks) | |
9492 | { | |
9493 | if (htab->relplt) | |
9494 | dyn.d_un.d_ptr -= htab->relplt->size; | |
9495 | break; | |
9496 | } | |
9497 | continue; | |
9498 | ||
25dbc73a | 9499 | default: |
7a2b07ff NS |
9500 | if (htab->is_vxworks |
9501 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
9502 | break; | |
25dbc73a AM |
9503 | continue; |
9504 | } | |
4c45e5c9 | 9505 | |
25dbc73a AM |
9506 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
9507 | } | |
9508 | } | |
4c45e5c9 | 9509 | |
3b36f7e6 | 9510 | if (htab->got != NULL) |
25dbc73a | 9511 | { |
e79f5955 AM |
9512 | if (htab->elf.hgot->root.u.def.section == htab->got |
9513 | || htab->elf.hgot->root.u.def.section == htab->sgotplt) | |
e87d4038 | 9514 | { |
e79f5955 | 9515 | unsigned char *p = htab->elf.hgot->root.u.def.section->contents; |
2f89ff8d | 9516 | |
e87d4038 AM |
9517 | p += htab->elf.hgot->root.u.def.value; |
9518 | if (htab->plt_type == PLT_OLD) | |
e79f5955 AM |
9519 | { |
9520 | /* Add a blrl instruction at _GLOBAL_OFFSET_TABLE_-4 | |
9521 | so that a function can easily find the address of | |
9522 | _GLOBAL_OFFSET_TABLE_. */ | |
9523 | BFD_ASSERT (htab->elf.hgot->root.u.def.value - 4 | |
9524 | < htab->elf.hgot->root.u.def.section->size); | |
9525 | bfd_put_32 (output_bfd, 0x4e800021, p - 4); | |
9526 | } | |
3b36f7e6 | 9527 | |
e87d4038 | 9528 | if (sdyn != NULL) |
e79f5955 AM |
9529 | { |
9530 | bfd_vma val = sdyn->output_section->vma + sdyn->output_offset; | |
9531 | BFD_ASSERT (htab->elf.hgot->root.u.def.value | |
9532 | < htab->elf.hgot->root.u.def.section->size); | |
9533 | bfd_put_32 (output_bfd, val, p); | |
9534 | } | |
e87d4038 AM |
9535 | } |
9536 | else | |
9537 | { | |
8de848d8 | 9538 | info->callbacks->einfo (_("%P: %s not defined in linker created %s\n"), |
25f53a85 AM |
9539 | htab->elf.hgot->root.root.string, |
9540 | (htab->sgotplt != NULL | |
9541 | ? htab->sgotplt->name : htab->got->name)); | |
e87d4038 AM |
9542 | bfd_set_error (bfd_error_bad_value); |
9543 | ret = FALSE; | |
9544 | } | |
25dbc73a AM |
9545 | |
9546 | elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 4; | |
9547 | } | |
9548 | ||
9d8504b1 PB |
9549 | /* Fill in the first entry in the VxWorks procedure linkage table. */ |
9550 | if (splt && splt->size > 0) | |
9551 | { | |
9552 | /* Use the right PLT. */ | |
5b914448 AM |
9553 | const bfd_vma *plt_entry = (info->shared |
9554 | ? ppc_elf_vxworks_pic_plt0_entry | |
9555 | : ppc_elf_vxworks_plt0_entry); | |
9d8504b1 PB |
9556 | |
9557 | if (!info->shared) | |
9558 | { | |
e87d4038 | 9559 | bfd_vma got_value = SYM_VAL (htab->elf.hgot); |
9d8504b1 | 9560 | |
e87d4038 | 9561 | bfd_put_32 (output_bfd, plt_entry[0] | PPC_HA (got_value), |
9d8504b1 | 9562 | splt->contents + 0); |
e87d4038 | 9563 | bfd_put_32 (output_bfd, plt_entry[1] | PPC_LO (got_value), |
9d8504b1 PB |
9564 | splt->contents + 4); |
9565 | } | |
9566 | else | |
9567 | { | |
9568 | bfd_put_32 (output_bfd, plt_entry[0], splt->contents + 0); | |
9569 | bfd_put_32 (output_bfd, plt_entry[1], splt->contents + 4); | |
9570 | } | |
9571 | bfd_put_32 (output_bfd, plt_entry[2], splt->contents + 8); | |
9572 | bfd_put_32 (output_bfd, plt_entry[3], splt->contents + 12); | |
9573 | bfd_put_32 (output_bfd, plt_entry[4], splt->contents + 16); | |
9574 | bfd_put_32 (output_bfd, plt_entry[5], splt->contents + 20); | |
9575 | bfd_put_32 (output_bfd, plt_entry[6], splt->contents + 24); | |
9576 | bfd_put_32 (output_bfd, plt_entry[7], splt->contents + 28); | |
9577 | ||
9578 | if (! info->shared) | |
9579 | { | |
9580 | Elf_Internal_Rela rela; | |
9581 | bfd_byte *loc; | |
9582 | ||
9583 | loc = htab->srelplt2->contents; | |
9584 | ||
9585 | /* Output the @ha relocation for the first instruction. */ | |
9586 | rela.r_offset = (htab->plt->output_section->vma | |
9587 | + htab->plt->output_offset | |
9588 | + 2); | |
636ce3f5 | 9589 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
9590 | rela.r_addend = 0; |
9591 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9592 | loc += sizeof (Elf32_External_Rela); | |
5b914448 | 9593 | |
9d8504b1 PB |
9594 | /* Output the @l relocation for the second instruction. */ |
9595 | rela.r_offset = (htab->plt->output_section->vma | |
9596 | + htab->plt->output_offset | |
9597 | + 6); | |
636ce3f5 | 9598 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
9599 | rela.r_addend = 0; |
9600 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
9601 | loc += sizeof (Elf32_External_Rela); | |
9602 | ||
9603 | /* Fix up the remaining relocations. They may have the wrong | |
9604 | symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
9605 | in which symbols were output. */ | |
9606 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
9607 | { | |
9608 | Elf_Internal_Rela rel; | |
9609 | ||
9610 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 9611 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_HA); |
9d8504b1 PB |
9612 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
9613 | loc += sizeof (Elf32_External_Rela); | |
9614 | ||
9615 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
636ce3f5 | 9616 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_PPC_ADDR16_LO); |
9d8504b1 PB |
9617 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
9618 | loc += sizeof (Elf32_External_Rela); | |
9619 | ||
9620 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
7325306f | 9621 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_PPC_ADDR32); |
9d8504b1 PB |
9622 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
9623 | loc += sizeof (Elf32_External_Rela); | |
9624 | } | |
9625 | } | |
9626 | } | |
9627 | ||
e054468f AM |
9628 | if (htab->glink != NULL |
9629 | && htab->glink->contents != NULL | |
9630 | && htab->elf.dynamic_sections_created) | |
d7128ce4 AM |
9631 | { |
9632 | unsigned char *p; | |
9633 | unsigned char *endp; | |
a6aa5195 | 9634 | bfd_vma res0; |
d7128ce4 | 9635 | unsigned int i; |
a6aa5195 AM |
9636 | |
9637 | /* | |
9638 | * PIC glink code is the following: | |
9639 | * | |
9640 | * # ith PLT code stub. | |
9641 | * addis 11,30,(plt+(i-1)*4-got)@ha | |
9642 | * lwz 11,(plt+(i-1)*4-got)@l(11) | |
9643 | * mtctr 11 | |
9644 | * bctr | |
9645 | * | |
9646 | * # A table of branches, one for each plt entry. | |
176a0d42 | 9647 | * # The idea is that the plt call stub loads ctr and r11 with these |
a6aa5195 AM |
9648 | * # addresses, so (r11 - res_0) gives the plt index * 4. |
9649 | * res_0: b PLTresolve | |
9650 | * res_1: b PLTresolve | |
9651 | * . | |
9652 | * # Some number of entries towards the end can be nops | |
9653 | * res_n_m3: nop | |
9654 | * res_n_m2: nop | |
9655 | * res_n_m1: | |
9656 | * | |
9657 | * PLTresolve: | |
9658 | * addis 11,11,(1f-res_0)@ha | |
9659 | * mflr 0 | |
9660 | * bcl 20,31,1f | |
9661 | * 1: addi 11,11,(1b-res_0)@l | |
9662 | * mflr 12 | |
9663 | * mtlr 0 | |
9664 | * sub 11,11,12 # r11 = index * 4 | |
9665 | * addis 12,12,(got+4-1b)@ha | |
9666 | * lwz 0,(got+4-1b)@l(12) # got[1] address of dl_runtime_resolve | |
9667 | * lwz 12,(got+8-1b)@l(12) # got[2] contains the map address | |
9668 | * mtctr 0 | |
9669 | * add 0,11,11 | |
9670 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
9671 | * bctr | |
9672 | */ | |
9673 | static const unsigned int pic_plt_resolve[] = | |
9674 | { | |
9675 | ADDIS_11_11, | |
9676 | MFLR_0, | |
9677 | BCL_20_31, | |
9678 | ADDI_11_11, | |
9679 | MFLR_12, | |
9680 | MTLR_0, | |
9681 | SUB_11_11_12, | |
9682 | ADDIS_12_12, | |
9683 | LWZ_0_12, | |
9684 | LWZ_12_12, | |
9685 | MTCTR_0, | |
9686 | ADD_0_11_11, | |
9687 | ADD_11_0_11, | |
9688 | BCTR, | |
9689 | NOP, | |
9690 | NOP | |
9691 | }; | |
9692 | ||
176a0d42 AM |
9693 | /* |
9694 | * Non-PIC glink code is a little simpler. | |
9695 | * | |
9696 | * # ith PLT code stub. | |
9697 | * lis 11,(plt+(i-1)*4)@ha | |
9698 | * lwz 11,(plt+(i-1)*4)@l(11) | |
9699 | * mtctr 11 | |
9700 | * bctr | |
9701 | * | |
9702 | * The branch table is the same, then comes | |
9703 | * | |
9704 | * PLTresolve: | |
9705 | * lis 12,(got+4)@ha | |
9706 | * addis 11,11,(-res_0)@ha | |
9707 | * lwz 0,(got+4)@l(12) # got[1] address of dl_runtime_resolve | |
9708 | * addi 11,11,(-res_0)@l # r11 = index * 4 | |
9709 | * mtctr 0 | |
9710 | * add 0,11,11 | |
9711 | * lwz 12,(got+8)@l(12) # got[2] contains the map address | |
9712 | * add 11,0,11 # r11 = index * 12 = reloc offset. | |
9713 | * bctr | |
9714 | */ | |
d7128ce4 AM |
9715 | static const unsigned int plt_resolve[] = |
9716 | { | |
a6aa5195 AM |
9717 | LIS_12, |
9718 | ADDIS_11_11, | |
9719 | LWZ_0_12, | |
9720 | ADDI_11_11, | |
d7128ce4 | 9721 | MTCTR_0, |
7e8aeb9a | 9722 | ADD_0_11_11, |
a6aa5195 | 9723 | LWZ_12_12, |
7e8aeb9a | 9724 | ADD_11_0_11, |
d7128ce4 AM |
9725 | BCTR, |
9726 | NOP, | |
9727 | NOP, | |
a6aa5195 AM |
9728 | NOP, |
9729 | NOP, | |
9730 | NOP, | |
9731 | NOP, | |
d7128ce4 AM |
9732 | NOP |
9733 | }; | |
9734 | ||
a6aa5195 AM |
9735 | if (ARRAY_SIZE (pic_plt_resolve) != GLINK_PLTRESOLVE / 4) |
9736 | abort (); | |
9737 | if (ARRAY_SIZE (plt_resolve) != GLINK_PLTRESOLVE / 4) | |
7e8aeb9a AM |
9738 | abort (); |
9739 | ||
a6aa5195 | 9740 | /* Build the branch table, one for each plt entry (less one), |
86b9da88 | 9741 | and perhaps some padding. */ |
a6aa5195 AM |
9742 | p = htab->glink->contents; |
9743 | p += htab->glink_pltresolve; | |
86b9da88 AM |
9744 | endp = htab->glink->contents; |
9745 | endp += htab->glink->size - GLINK_PLTRESOLVE; | |
9746 | while (p < endp - 8 * 4) | |
9747 | { | |
9748 | bfd_put_32 (output_bfd, B + endp - p, p); | |
9749 | p += 4; | |
9750 | } | |
9751 | while (p < endp) | |
9752 | { | |
9753 | bfd_put_32 (output_bfd, NOP, p); | |
9754 | p += 4; | |
9755 | } | |
9756 | ||
7e8aeb9a | 9757 | res0 = (htab->glink_pltresolve |
86b9da88 AM |
9758 | + htab->glink->output_section->vma |
9759 | + htab->glink->output_offset); | |
9760 | ||
9761 | /* Last comes the PLTresolve stub. */ | |
a877a2b6 | 9762 | if (info->shared) |
7e8aeb9a | 9763 | { |
a6aa5195 | 9764 | bfd_vma bcl; |
d7128ce4 | 9765 | |
a6aa5195 | 9766 | for (i = 0; i < ARRAY_SIZE (pic_plt_resolve); i++) |
7e8aeb9a | 9767 | { |
a6aa5195 | 9768 | bfd_put_32 (output_bfd, pic_plt_resolve[i], p); |
7e8aeb9a AM |
9769 | p += 4; |
9770 | } | |
a6aa5195 AM |
9771 | p -= 4 * ARRAY_SIZE (pic_plt_resolve); |
9772 | ||
9773 | bcl = (htab->glink->size - GLINK_PLTRESOLVE + 3*4 | |
9774 | + htab->glink->output_section->vma | |
9775 | + htab->glink->output_offset); | |
9776 | ||
9777 | bfd_put_32 (output_bfd, | |
9778 | ADDIS_11_11 + PPC_HA (bcl - res0), p + 0*4); | |
9779 | bfd_put_32 (output_bfd, | |
9780 | ADDI_11_11 + PPC_LO (bcl - res0), p + 3*4); | |
9781 | bfd_put_32 (output_bfd, | |
9782 | ADDIS_12_12 + PPC_HA (got + 4 - bcl), p + 7*4); | |
9783 | if (PPC_HA (got + 4 - bcl) == PPC_HA (got + 8 - bcl)) | |
9784 | { | |
9785 | bfd_put_32 (output_bfd, | |
9786 | LWZ_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
9787 | bfd_put_32 (output_bfd, | |
9788 | LWZ_12_12 + PPC_LO (got + 8 - bcl), p + 9*4); | |
9789 | } | |
9790 | else | |
9791 | { | |
9792 | bfd_put_32 (output_bfd, | |
9793 | LWZU_0_12 + PPC_LO (got + 4 - bcl), p + 8*4); | |
9794 | bfd_put_32 (output_bfd, | |
9795 | LWZ_12_12 + 4, p + 9*4); | |
9796 | } | |
7e8aeb9a AM |
9797 | } |
9798 | else | |
d7128ce4 | 9799 | { |
a6aa5195 | 9800 | for (i = 0; i < ARRAY_SIZE (plt_resolve); i++) |
7e8aeb9a AM |
9801 | { |
9802 | bfd_put_32 (output_bfd, plt_resolve[i], p); | |
9803 | p += 4; | |
9804 | } | |
a6aa5195 AM |
9805 | p -= 4 * ARRAY_SIZE (plt_resolve); |
9806 | ||
9807 | bfd_put_32 (output_bfd, | |
9808 | LIS_12 + PPC_HA (got + 4), p + 0*4); | |
9809 | bfd_put_32 (output_bfd, | |
9810 | ADDIS_11_11 + PPC_HA (-res0), p + 1*4); | |
9811 | bfd_put_32 (output_bfd, | |
9812 | ADDI_11_11 + PPC_LO (-res0), p + 3*4); | |
9813 | if (PPC_HA (got + 4) == PPC_HA (got + 8)) | |
9814 | { | |
9815 | bfd_put_32 (output_bfd, | |
9816 | LWZ_0_12 + PPC_LO (got + 4), p + 2*4); | |
9817 | bfd_put_32 (output_bfd, | |
9818 | LWZ_12_12 + PPC_LO (got + 8), p + 6*4); | |
9819 | } | |
9820 | else | |
9821 | { | |
9822 | bfd_put_32 (output_bfd, | |
9823 | LWZU_0_12 + PPC_LO (got + 4), p + 2*4); | |
9824 | bfd_put_32 (output_bfd, | |
9825 | LWZ_12_12 + 4, p + 6*4); | |
9826 | } | |
d7128ce4 | 9827 | } |
d7128ce4 AM |
9828 | } |
9829 | ||
6177242a AM |
9830 | if (htab->glink_eh_frame != NULL |
9831 | && htab->glink_eh_frame->contents != NULL) | |
9832 | { | |
9833 | unsigned char *p = htab->glink_eh_frame->contents; | |
9834 | bfd_vma val; | |
9835 | ||
6177242a AM |
9836 | p += sizeof (glink_eh_frame_cie); |
9837 | /* FDE length. */ | |
6177242a AM |
9838 | p += 4; |
9839 | /* CIE pointer. */ | |
6177242a AM |
9840 | p += 4; |
9841 | /* Offset to .glink. */ | |
9842 | val = (htab->glink->output_section->vma | |
9843 | + htab->glink->output_offset); | |
9844 | val -= (htab->glink_eh_frame->output_section->vma | |
9845 | + htab->glink_eh_frame->output_offset); | |
9846 | val -= p - htab->glink_eh_frame->contents; | |
9847 | bfd_put_32 (htab->elf.dynobj, val, p); | |
6177242a | 9848 | |
dbaa2011 | 9849 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME |
6177242a AM |
9850 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, |
9851 | htab->glink_eh_frame, | |
9852 | htab->glink_eh_frame->contents)) | |
9853 | return FALSE; | |
9854 | } | |
9855 | ||
e87d4038 | 9856 | return ret; |
25dbc73a | 9857 | } |
e1a9cb8e | 9858 | \f |
252b5132 RH |
9859 | #define TARGET_LITTLE_SYM bfd_elf32_powerpcle_vec |
9860 | #define TARGET_LITTLE_NAME "elf32-powerpcle" | |
9861 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vec | |
9862 | #define TARGET_BIG_NAME "elf32-powerpc" | |
9863 | #define ELF_ARCH bfd_arch_powerpc | |
ae95ffa6 | 9864 | #define ELF_TARGET_ID PPC32_ELF_DATA |
252b5132 | 9865 | #define ELF_MACHINE_CODE EM_PPC |
d0facd1b NC |
9866 | #ifdef __QNXTARGET__ |
9867 | #define ELF_MAXPAGESIZE 0x1000 | |
9868 | #else | |
252b5132 | 9869 | #define ELF_MAXPAGESIZE 0x10000 |
d0facd1b | 9870 | #endif |
b1342370 | 9871 | #define ELF_MINPAGESIZE 0x1000 |
24718e3b | 9872 | #define ELF_COMMONPAGESIZE 0x1000 |
252b5132 RH |
9873 | #define elf_info_to_howto ppc_elf_info_to_howto |
9874 | ||
9875 | #ifdef EM_CYGNUS_POWERPC | |
9876 | #define ELF_MACHINE_ALT1 EM_CYGNUS_POWERPC | |
9877 | #endif | |
9878 | ||
9879 | #ifdef EM_PPC_OLD | |
9880 | #define ELF_MACHINE_ALT2 EM_PPC_OLD | |
9881 | #endif | |
9882 | ||
9883 | #define elf_backend_plt_not_loaded 1 | |
252b5132 | 9884 | #define elf_backend_can_gc_sections 1 |
51b64d56 | 9885 | #define elf_backend_can_refcount 1 |
b491616a | 9886 | #define elf_backend_rela_normal 1 |
252b5132 | 9887 | |
43c40ab2 | 9888 | #define bfd_elf32_mkobject ppc_elf_mkobject |
252b5132 | 9889 | #define bfd_elf32_bfd_merge_private_bfd_data ppc_elf_merge_private_bfd_data |
70bccea4 | 9890 | #define bfd_elf32_bfd_relax_section ppc_elf_relax_section |
252b5132 | 9891 | #define bfd_elf32_bfd_reloc_type_lookup ppc_elf_reloc_type_lookup |
b9c361e0 | 9892 | #define bfd_elf32_bfd_reloc_name_lookup ppc_elf_reloc_name_lookup |
252b5132 | 9893 | #define bfd_elf32_bfd_set_private_flags ppc_elf_set_private_flags |
70bccea4 | 9894 | #define bfd_elf32_bfd_link_hash_table_create ppc_elf_link_hash_table_create |
468392fb | 9895 | #define bfd_elf32_get_synthetic_symtab ppc_elf_get_synthetic_symtab |
252b5132 | 9896 | |
feee612b | 9897 | #define elf_backend_object_p ppc_elf_object_p |
252b5132 RH |
9898 | #define elf_backend_gc_mark_hook ppc_elf_gc_mark_hook |
9899 | #define elf_backend_gc_sweep_hook ppc_elf_gc_sweep_hook | |
9900 | #define elf_backend_section_from_shdr ppc_elf_section_from_shdr | |
9901 | #define elf_backend_relocate_section ppc_elf_relocate_section | |
9902 | #define elf_backend_create_dynamic_sections ppc_elf_create_dynamic_sections | |
9903 | #define elf_backend_check_relocs ppc_elf_check_relocs | |
7fce784e | 9904 | #define elf_backend_copy_indirect_symbol ppc_elf_copy_indirect_symbol |
252b5132 RH |
9905 | #define elf_backend_adjust_dynamic_symbol ppc_elf_adjust_dynamic_symbol |
9906 | #define elf_backend_add_symbol_hook ppc_elf_add_symbol_hook | |
9907 | #define elf_backend_size_dynamic_sections ppc_elf_size_dynamic_sections | |
0eb4a168 | 9908 | #define elf_backend_hash_symbol ppc_elf_hash_symbol |
252b5132 RH |
9909 | #define elf_backend_finish_dynamic_symbol ppc_elf_finish_dynamic_symbol |
9910 | #define elf_backend_finish_dynamic_sections ppc_elf_finish_dynamic_sections | |
9911 | #define elf_backend_fake_sections ppc_elf_fake_sections | |
9912 | #define elf_backend_additional_program_headers ppc_elf_additional_program_headers | |
b9c361e0 | 9913 | #define elf_backend_modify_segment_map ppc_elf_modify_segment_map |
c5fccbec DJ |
9914 | #define elf_backend_grok_prstatus ppc_elf_grok_prstatus |
9915 | #define elf_backend_grok_psinfo ppc_elf_grok_psinfo | |
183e98be | 9916 | #define elf_backend_write_core_note ppc_elf_write_core_note |
29c2fb7c | 9917 | #define elf_backend_reloc_type_class ppc_elf_reloc_type_class |
70bccea4 AM |
9918 | #define elf_backend_begin_write_processing ppc_elf_begin_write_processing |
9919 | #define elf_backend_final_write_processing ppc_elf_final_write_processing | |
9920 | #define elf_backend_write_section ppc_elf_write_section | |
551b43fd | 9921 | #define elf_backend_get_sec_type_attr ppc_elf_get_sec_type_attr |
4c45e5c9 | 9922 | #define elf_backend_plt_sym_val ppc_elf_plt_sym_val |
8a696751 | 9923 | #define elf_backend_action_discarded ppc_elf_action_discarded |
74541ad4 | 9924 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
e054468f | 9925 | #define elf_backend_post_process_headers _bfd_elf_set_osabi |
b9c361e0 | 9926 | #define elf_backend_lookup_section_flags_hook ppc_elf_lookup_section_flags |
b9c361e0 | 9927 | #define elf_backend_section_processing ppc_elf_section_processing |
252b5132 RH |
9928 | |
9929 | #include "elf32-target.h" | |
9d8504b1 | 9930 | |
7b8e7dad AM |
9931 | /* FreeBSD Target */ |
9932 | ||
9933 | #undef TARGET_LITTLE_SYM | |
9934 | #undef TARGET_LITTLE_NAME | |
9935 | ||
9936 | #undef TARGET_BIG_SYM | |
9937 | #define TARGET_BIG_SYM bfd_elf32_powerpc_freebsd_vec | |
9938 | #undef TARGET_BIG_NAME | |
9939 | #define TARGET_BIG_NAME "elf32-powerpc-freebsd" | |
9940 | ||
9941 | #undef ELF_OSABI | |
9942 | #define ELF_OSABI ELFOSABI_FREEBSD | |
9943 | ||
9944 | #undef elf32_bed | |
9945 | #define elf32_bed elf32_powerpc_fbsd_bed | |
9946 | ||
9947 | #include "elf32-target.h" | |
9948 | ||
9d8504b1 PB |
9949 | /* VxWorks Target */ |
9950 | ||
9951 | #undef TARGET_LITTLE_SYM | |
9952 | #undef TARGET_LITTLE_NAME | |
9953 | ||
9954 | #undef TARGET_BIG_SYM | |
9955 | #define TARGET_BIG_SYM bfd_elf32_powerpc_vxworks_vec | |
9956 | #undef TARGET_BIG_NAME | |
9957 | #define TARGET_BIG_NAME "elf32-powerpc-vxworks" | |
9958 | ||
7b8e7dad AM |
9959 | #undef ELF_OSABI |
9960 | ||
d5e3d971 PB |
9961 | /* VxWorks uses the elf default section flags for .plt. */ |
9962 | static const struct bfd_elf_special_section * | |
9963 | ppc_elf_vxworks_get_sec_type_attr (bfd *abfd ATTRIBUTE_UNUSED, asection *sec) | |
9d8504b1 | 9964 | { |
d5e3d971 PB |
9965 | if (sec->name == NULL) |
9966 | return NULL; | |
9967 | ||
9968 | if (strcmp (sec->name, ".plt") == 0) | |
9969 | return _bfd_elf_get_sec_type_attr (abfd, sec); | |
9970 | ||
9971 | return ppc_elf_get_sec_type_attr (abfd, sec); | |
9972 | } | |
9d8504b1 PB |
9973 | |
9974 | /* Like ppc_elf_link_hash_table_create, but overrides | |
9975 | appropriately for VxWorks. */ | |
9976 | static struct bfd_link_hash_table * | |
9977 | ppc_elf_vxworks_link_hash_table_create (bfd *abfd) | |
9978 | { | |
9979 | struct bfd_link_hash_table *ret; | |
9980 | ||
9981 | ret = ppc_elf_link_hash_table_create (abfd); | |
9982 | if (ret) | |
9983 | { | |
9984 | struct ppc_elf_link_hash_table *htab | |
9985 | = (struct ppc_elf_link_hash_table *)ret; | |
9986 | htab->is_vxworks = 1; | |
4a3dc543 | 9987 | htab->plt_type = PLT_VXWORKS; |
9d8504b1 PB |
9988 | htab->plt_entry_size = VXWORKS_PLT_ENTRY_SIZE; |
9989 | htab->plt_slot_size = VXWORKS_PLT_ENTRY_SIZE; | |
9990 | htab->plt_initial_entry_size = VXWORKS_PLT_INITIAL_ENTRY_SIZE; | |
9991 | } | |
9992 | return ret; | |
9993 | } | |
9994 | ||
9995 | /* Tweak magic VxWorks symbols as they are loaded. */ | |
9996 | static bfd_boolean | |
9997 | ppc_elf_vxworks_add_symbol_hook (bfd *abfd, | |
9998 | struct bfd_link_info *info, | |
9999 | Elf_Internal_Sym *sym, | |
10000 | const char **namep ATTRIBUTE_UNUSED, | |
10001 | flagword *flagsp ATTRIBUTE_UNUSED, | |
10002 | asection **secp, | |
10003 | bfd_vma *valp) | |
10004 | { | |
10005 | if (!elf_vxworks_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, | |
10006 | valp)) | |
10007 | return FALSE; | |
10008 | ||
10009 | return ppc_elf_add_symbol_hook(abfd, info, sym,namep, flagsp, secp, valp); | |
10010 | } | |
10011 | ||
9d8504b1 PB |
10012 | static void |
10013 | ppc_elf_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker) | |
10014 | { | |
10015 | ppc_elf_final_write_processing(abfd, linker); | |
10016 | elf_vxworks_final_write_processing(abfd, linker); | |
10017 | } | |
10018 | ||
10019 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
10020 | define it. */ | |
10021 | #undef elf_backend_want_plt_sym | |
10022 | #define elf_backend_want_plt_sym 1 | |
10023 | #undef elf_backend_want_got_plt | |
10024 | #define elf_backend_want_got_plt 1 | |
10025 | #undef elf_backend_got_symbol_offset | |
10026 | #define elf_backend_got_symbol_offset 0 | |
10027 | #undef elf_backend_plt_not_loaded | |
10028 | #define elf_backend_plt_not_loaded 0 | |
10029 | #undef elf_backend_plt_readonly | |
10030 | #define elf_backend_plt_readonly 1 | |
10031 | #undef elf_backend_got_header_size | |
10032 | #define elf_backend_got_header_size 12 | |
10033 | ||
468392fb AM |
10034 | #undef bfd_elf32_get_synthetic_symtab |
10035 | ||
9d8504b1 PB |
10036 | #undef bfd_elf32_bfd_link_hash_table_create |
10037 | #define bfd_elf32_bfd_link_hash_table_create \ | |
10038 | ppc_elf_vxworks_link_hash_table_create | |
9d8504b1 PB |
10039 | #undef elf_backend_add_symbol_hook |
10040 | #define elf_backend_add_symbol_hook \ | |
10041 | ppc_elf_vxworks_add_symbol_hook | |
10042 | #undef elf_backend_link_output_symbol_hook | |
10043 | #define elf_backend_link_output_symbol_hook \ | |
9c72ff84 | 10044 | elf_vxworks_link_output_symbol_hook |
9d8504b1 PB |
10045 | #undef elf_backend_final_write_processing |
10046 | #define elf_backend_final_write_processing \ | |
10047 | ppc_elf_vxworks_final_write_processing | |
d5e3d971 PB |
10048 | #undef elf_backend_get_sec_type_attr |
10049 | #define elf_backend_get_sec_type_attr \ | |
10050 | ppc_elf_vxworks_get_sec_type_attr | |
9d8504b1 PB |
10051 | #undef elf_backend_emit_relocs |
10052 | #define elf_backend_emit_relocs \ | |
10053 | elf_vxworks_emit_relocs | |
10054 | ||
10055 | #undef elf32_bed | |
10056 | #define elf32_bed ppc_elf_vxworks_bed | |
e054468f | 10057 | #undef elf_backend_post_process_headers |
9d8504b1 PB |
10058 | |
10059 | #include "elf32-target.h" |