2004-07-27 Jeff Johnston <jjohnstn@redhat.com>
[deliverable/binutils-gdb.git] / bfd / elf64-ppc.c
CommitLineData
5bd4f169 1/* PowerPC64-specific support for 64-bit ELF.
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2 Copyright 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
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4 Written by Linus Nordberg, Swox AB <info@swox.com>,
5 based on elf32-ppc.c by Ian Lance Taylor.
d37c89e5 6 Largely rewritten by Alan Modra <amodra@bigpond.net.au>
5bd4f169 7
ae9a127f 8 This file is part of BFD, the Binary File Descriptor library.
5bd4f169 9
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10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
5bd4f169 14
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15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
5bd4f169 19
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20 You should have received a copy of the GNU General Public License along
21 with this program; if not, write to the Free Software Foundation, Inc.,
22 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
5bd4f169 23
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24/* The 64-bit PowerPC ELF ABI may be found at
25 http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and
26 http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */
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27
28#include "bfd.h"
29#include "sysdep.h"
30#include "bfdlink.h"
31#include "libbfd.h"
32#include "elf-bfd.h"
04c9666a 33#include "elf/ppc64.h"
5d1634d7 34#include "elf64-ppc.h"
5bd4f169 35
805fc799 36static bfd_reloc_status_type ppc64_elf_ha_reloc
4ce794b7 37 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 38static bfd_reloc_status_type ppc64_elf_brtaken_reloc
4ce794b7 39 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 40static bfd_reloc_status_type ppc64_elf_sectoff_reloc
4ce794b7 41 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 42static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc
4ce794b7 43 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 44static bfd_reloc_status_type ppc64_elf_toc_reloc
4ce794b7 45 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 46static bfd_reloc_status_type ppc64_elf_toc_ha_reloc
4ce794b7 47 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 48static bfd_reloc_status_type ppc64_elf_toc64_reloc
4ce794b7 49 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
805fc799 50static bfd_reloc_status_type ppc64_elf_unhandled_reloc
4ce794b7 51 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
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52
53
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54#define TARGET_LITTLE_SYM bfd_elf64_powerpcle_vec
55#define TARGET_LITTLE_NAME "elf64-powerpcle"
56#define TARGET_BIG_SYM bfd_elf64_powerpc_vec
57#define TARGET_BIG_NAME "elf64-powerpc"
58#define ELF_ARCH bfd_arch_powerpc
59#define ELF_MACHINE_CODE EM_PPC64
60#define ELF_MAXPAGESIZE 0x10000
61#define elf_info_to_howto ppc64_elf_info_to_howto
62
63#define elf_backend_want_got_sym 0
64#define elf_backend_want_plt_sym 0
65#define elf_backend_plt_alignment 3
66#define elf_backend_plt_not_loaded 1
67#define elf_backend_got_symbol_offset 0
68#define elf_backend_got_header_size 8
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69#define elf_backend_can_gc_sections 1
70#define elf_backend_can_refcount 1
71#define elf_backend_rela_normal 1
72
e717da7e 73#define bfd_elf64_mkobject ppc64_elf_mkobject
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74#define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup
75#define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data
76#define bfd_elf64_new_section_hook ppc64_elf_new_section_hook
77#define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create
78#define bfd_elf64_bfd_link_hash_table_free ppc64_elf_link_hash_table_free
79
80#define elf_backend_object_p ppc64_elf_object_p
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81#define elf_backend_grok_prstatus ppc64_elf_grok_prstatus
82#define elf_backend_grok_psinfo ppc64_elf_grok_psinfo
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83#define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections
84#define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol
555cd476 85#define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook
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86#define elf_backend_check_relocs ppc64_elf_check_relocs
87#define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook
88#define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook
89#define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol
90#define elf_backend_hide_symbol ppc64_elf_hide_symbol
91#define elf_backend_always_size_sections ppc64_elf_func_desc_adjust
92#define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections
93#define elf_backend_relocate_section ppc64_elf_relocate_section
94#define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol
95#define elf_backend_reloc_type_class ppc64_elf_reloc_type_class
96#define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections
754021d0 97#define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook
2f89ff8d 98#define elf_backend_special_sections ppc64_elf_special_sections
ad8e1ba5 99
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100/* The name of the dynamic interpreter. This is put in the .interp
101 section. */
102#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
103
104/* The size in bytes of an entry in the procedure linkage table. */
105#define PLT_ENTRY_SIZE 24
106
107/* The initial size of the plt reserved for the dynamic linker. */
5d1634d7 108#define PLT_INITIAL_ENTRY_SIZE PLT_ENTRY_SIZE
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109
110/* TOC base pointers offset from start of TOC. */
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111#define TOC_BASE_OFF 0x8000
112
113/* Offset of tp and dtp pointers from start of TLS block. */
114#define TP_OFFSET 0x7000
115#define DTP_OFFSET 0x8000
5bd4f169 116
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117/* .plt call stub instructions. The normal stub is like this, but
118 sometimes the .plt entry crosses a 64k boundary and we need to
119 insert an addis to adjust r12. */
120#define PLT_CALL_STUB_SIZE (7*4)
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121#define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */
122#define STD_R2_40R1 0xf8410028 /* std %r2,40(%r1) */
123#define LD_R11_0R12 0xe96c0000 /* ld %r11,xxx+0@l(%r12) */
124#define LD_R2_0R12 0xe84c0000 /* ld %r2,xxx+8@l(%r12) */
125#define MTCTR_R11 0x7d6903a6 /* mtctr %r11 */
126 /* ld %r11,xxx+16@l(%r12) */
127#define BCTR 0x4e800420 /* bctr */
128
5d1634d7 129
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130#define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */
131#define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */
132
133#define LD_R2_40R1 0xe8410028 /* ld %r2,40(%r1) */
134
135/* glink call stub instructions. We enter with the index in R0, and the
136 address of glink entry in CTR. From that, we can calculate PLT0. */
137#define GLINK_CALL_STUB_SIZE (16*4)
138#define MFCTR_R12 0x7d8902a6 /* mfctr %r12 */
139#define SLDI_R11_R0_3 0x780b1f24 /* sldi %r11,%r0,3 */
140#define ADDIC_R2_R0_32K 0x34408000 /* addic. %r2,%r0,-32768 */
141#define SUB_R12_R12_R11 0x7d8b6050 /* sub %r12,%r12,%r11 */
142#define SRADI_R2_R2_63 0x7c42fe76 /* sradi %r2,%r2,63 */
143#define SLDI_R11_R0_2 0x780b1764 /* sldi %r11,%r0,2 */
144#define AND_R2_R2_R11 0x7c425838 /* and %r2,%r2,%r11 */
145 /* sub %r12,%r12,%r11 */
146#define ADD_R12_R12_R2 0x7d8c1214 /* add %r12,%r12,%r2 */
147#define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */
148 /* ld %r11,xxx@l(%r12) */
149#define ADDI_R12_R12 0x398c0000 /* addi %r12,%r12,xxx@l */
150 /* ld %r2,8(%r12) */
151 /* mtctr %r11 */
152 /* ld %r11,16(%r12) */
153 /* bctr */
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154
155/* Pad with this. */
156#define NOP 0x60000000
157
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158/* Some other nops. */
159#define CROR_151515 0x4def7b82
160#define CROR_313131 0x4ffffb82
161
cedb70c5 162/* .glink entries for the first 32k functions are two instructions. */
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163#define LI_R0_0 0x38000000 /* li %r0,0 */
164#define B_DOT 0x48000000 /* b . */
165
166/* After that, we need two instructions to load the index, followed by
167 a branch. */
168#define LIS_R0_0 0x3c000000 /* lis %r0,0 */
10ed1bba 169#define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */
41bd81ab 170
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171/* Instructions to save and restore floating point regs. */
172#define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */
173#define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */
174#define BLR 0x4e800020 /* blr */
175
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176/* Since .opd is an array of descriptors and each entry will end up
177 with identical R_PPC64_RELATIVE relocs, there is really no need to
178 propagate .opd relocs; The dynamic linker should be taught to
1e2f5b6e 179 relocate .opd without reloc entries. */
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180#ifndef NO_OPD_RELOCS
181#define NO_OPD_RELOCS 0
182#endif
5bd4f169 183\f
f5e87a1d 184#define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1)
b34976b6 185
5bd4f169 186/* Relocation HOWTO's. */
04c9666a 187static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max];
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188
189static reloc_howto_type ppc64_elf_howto_raw[] = {
190 /* This reloc does nothing. */
191 HOWTO (R_PPC64_NONE, /* type */
192 0, /* rightshift */
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193 2, /* size (0 = byte, 1 = short, 2 = long) */
194 32, /* bitsize */
b34976b6 195 FALSE, /* pc_relative */
5bd4f169 196 0, /* bitpos */
f5e87a1d 197 complain_overflow_dont, /* complain_on_overflow */
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198 bfd_elf_generic_reloc, /* special_function */
199 "R_PPC64_NONE", /* name */
b34976b6 200 FALSE, /* partial_inplace */
d006db6c 201 0, /* src_mask */
5bd4f169 202 0, /* dst_mask */
b34976b6 203 FALSE), /* pcrel_offset */
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204
205 /* A standard 32 bit relocation. */
206 HOWTO (R_PPC64_ADDR32, /* type */
207 0, /* rightshift */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
209 32, /* bitsize */
b34976b6 210 FALSE, /* pc_relative */
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211 0, /* bitpos */
212 complain_overflow_bitfield, /* complain_on_overflow */
213 bfd_elf_generic_reloc, /* special_function */
214 "R_PPC64_ADDR32", /* name */
b34976b6 215 FALSE, /* partial_inplace */
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216 0, /* src_mask */
217 0xffffffff, /* dst_mask */
b34976b6 218 FALSE), /* pcrel_offset */
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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_PPC64_ADDR24, /* type */
223 0, /* rightshift */
224 2, /* size (0 = byte, 1 = short, 2 = long) */
225 26, /* bitsize */
b34976b6 226 FALSE, /* pc_relative */
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227 0, /* bitpos */
228 complain_overflow_bitfield, /* complain_on_overflow */
229 bfd_elf_generic_reloc, /* special_function */
230 "R_PPC64_ADDR24", /* name */
b34976b6 231 FALSE, /* partial_inplace */
d006db6c 232 0, /* src_mask */
f5e87a1d 233 0x03fffffc, /* dst_mask */
b34976b6 234 FALSE), /* pcrel_offset */
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235
236 /* A standard 16 bit relocation. */
237 HOWTO (R_PPC64_ADDR16, /* type */
238 0, /* rightshift */
239 1, /* size (0 = byte, 1 = short, 2 = long) */
240 16, /* bitsize */
b34976b6 241 FALSE, /* pc_relative */
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AM
242 0, /* bitpos */
243 complain_overflow_bitfield, /* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_PPC64_ADDR16", /* name */
b34976b6 246 FALSE, /* partial_inplace */
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247 0, /* src_mask */
248 0xffff, /* dst_mask */
b34976b6 249 FALSE), /* pcrel_offset */
5bd4f169
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250
251 /* A 16 bit relocation without overflow. */
252 HOWTO (R_PPC64_ADDR16_LO, /* type */
253 0, /* rightshift */
254 1, /* size (0 = byte, 1 = short, 2 = long) */
255 16, /* bitsize */
b34976b6 256 FALSE, /* pc_relative */
5bd4f169
AM
257 0, /* bitpos */
258 complain_overflow_dont,/* complain_on_overflow */
259 bfd_elf_generic_reloc, /* special_function */
260 "R_PPC64_ADDR16_LO", /* name */
b34976b6 261 FALSE, /* partial_inplace */
5bd4f169
AM
262 0, /* src_mask */
263 0xffff, /* dst_mask */
b34976b6 264 FALSE), /* pcrel_offset */
5bd4f169
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265
266 /* Bits 16-31 of an address. */
267 HOWTO (R_PPC64_ADDR16_HI, /* type */
268 16, /* rightshift */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
270 16, /* bitsize */
b34976b6 271 FALSE, /* pc_relative */
5bd4f169
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272 0, /* bitpos */
273 complain_overflow_dont, /* complain_on_overflow */
274 bfd_elf_generic_reloc, /* special_function */
275 "R_PPC64_ADDR16_HI", /* name */
b34976b6 276 FALSE, /* partial_inplace */
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277 0, /* src_mask */
278 0xffff, /* dst_mask */
b34976b6 279 FALSE), /* pcrel_offset */
5bd4f169
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280
281 /* Bits 16-31 of an address, plus 1 if the contents of the low 16
282 bits, treated as a signed number, is negative. */
283 HOWTO (R_PPC64_ADDR16_HA, /* type */
284 16, /* rightshift */
285 1, /* size (0 = byte, 1 = short, 2 = long) */
286 16, /* bitsize */
b34976b6 287 FALSE, /* pc_relative */
5bd4f169
AM
288 0, /* bitpos */
289 complain_overflow_dont, /* complain_on_overflow */
805fc799 290 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 291 "R_PPC64_ADDR16_HA", /* name */
b34976b6 292 FALSE, /* partial_inplace */
5bd4f169
AM
293 0, /* src_mask */
294 0xffff, /* dst_mask */
b34976b6 295 FALSE), /* pcrel_offset */
5bd4f169
AM
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_PPC64_ADDR14, /* type */
300 0, /* rightshift */
301 2, /* size (0 = byte, 1 = short, 2 = long) */
302 16, /* bitsize */
b34976b6 303 FALSE, /* pc_relative */
5bd4f169
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304 0, /* bitpos */
305 complain_overflow_bitfield, /* complain_on_overflow */
306 bfd_elf_generic_reloc, /* special_function */
307 "R_PPC64_ADDR14", /* name */
b34976b6 308 FALSE, /* partial_inplace */
d006db6c 309 0, /* src_mask */
f5e87a1d 310 0x0000fffc, /* dst_mask */
b34976b6 311 FALSE), /* pcrel_offset */
5bd4f169
AM
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
315 bits must be zero. */
316 HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */
317 0, /* rightshift */
318 2, /* size (0 = byte, 1 = short, 2 = long) */
319 16, /* bitsize */
b34976b6 320 FALSE, /* pc_relative */
5bd4f169
AM
321 0, /* bitpos */
322 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 323 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 324 "R_PPC64_ADDR14_BRTAKEN",/* name */
b34976b6 325 FALSE, /* partial_inplace */
d006db6c 326 0, /* src_mask */
f5e87a1d 327 0x0000fffc, /* dst_mask */
b34976b6 328 FALSE), /* pcrel_offset */
5bd4f169
AM
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_PPC64_ADDR14_BRNTAKEN, /* type */
334 0, /* rightshift */
335 2, /* size (0 = byte, 1 = short, 2 = long) */
336 16, /* bitsize */
b34976b6 337 FALSE, /* pc_relative */
5bd4f169
AM
338 0, /* bitpos */
339 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 340 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 341 "R_PPC64_ADDR14_BRNTAKEN",/* name */
b34976b6 342 FALSE, /* partial_inplace */
d006db6c 343 0, /* src_mask */
f5e87a1d 344 0x0000fffc, /* dst_mask */
b34976b6 345 FALSE), /* pcrel_offset */
5bd4f169
AM
346
347 /* A relative 26 bit branch; the lower two bits must be zero. */
348 HOWTO (R_PPC64_REL24, /* type */
349 0, /* rightshift */
350 2, /* size (0 = byte, 1 = short, 2 = long) */
351 26, /* bitsize */
b34976b6 352 TRUE, /* pc_relative */
5bd4f169
AM
353 0, /* bitpos */
354 complain_overflow_signed, /* complain_on_overflow */
355 bfd_elf_generic_reloc, /* special_function */
356 "R_PPC64_REL24", /* name */
b34976b6 357 FALSE, /* partial_inplace */
d006db6c 358 0, /* src_mask */
f5e87a1d 359 0x03fffffc, /* dst_mask */
b34976b6 360 TRUE), /* pcrel_offset */
5bd4f169
AM
361
362 /* A relative 16 bit branch; the lower two bits must be zero. */
363 HOWTO (R_PPC64_REL14, /* type */
364 0, /* rightshift */
365 2, /* size (0 = byte, 1 = short, 2 = long) */
366 16, /* bitsize */
b34976b6 367 TRUE, /* pc_relative */
5bd4f169
AM
368 0, /* bitpos */
369 complain_overflow_signed, /* complain_on_overflow */
370 bfd_elf_generic_reloc, /* special_function */
371 "R_PPC64_REL14", /* name */
b34976b6 372 FALSE, /* partial_inplace */
d006db6c 373 0, /* src_mask */
f5e87a1d 374 0x0000fffc, /* dst_mask */
b34976b6 375 TRUE), /* pcrel_offset */
5bd4f169
AM
376
377 /* A relative 16 bit branch. Bit 10 should be set to indicate that
378 the branch is expected to be taken. The lower two bits must be
379 zero. */
380 HOWTO (R_PPC64_REL14_BRTAKEN, /* type */
381 0, /* rightshift */
382 2, /* size (0 = byte, 1 = short, 2 = long) */
383 16, /* bitsize */
b34976b6 384 TRUE, /* pc_relative */
5bd4f169
AM
385 0, /* bitpos */
386 complain_overflow_signed, /* complain_on_overflow */
805fc799 387 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 388 "R_PPC64_REL14_BRTAKEN", /* name */
b34976b6 389 FALSE, /* partial_inplace */
d006db6c 390 0, /* src_mask */
f5e87a1d 391 0x0000fffc, /* dst_mask */
b34976b6 392 TRUE), /* pcrel_offset */
5bd4f169
AM
393
394 /* A relative 16 bit branch. Bit 10 should be set to indicate that
395 the branch is not expected to be taken. The lower two bits must
396 be zero. */
397 HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */
398 0, /* rightshift */
399 2, /* size (0 = byte, 1 = short, 2 = long) */
400 16, /* bitsize */
b34976b6 401 TRUE, /* pc_relative */
5bd4f169
AM
402 0, /* bitpos */
403 complain_overflow_signed, /* complain_on_overflow */
805fc799 404 ppc64_elf_brtaken_reloc, /* special_function */
5bd4f169 405 "R_PPC64_REL14_BRNTAKEN",/* name */
b34976b6 406 FALSE, /* partial_inplace */
d006db6c 407 0, /* src_mask */
f5e87a1d 408 0x0000fffc, /* dst_mask */
b34976b6 409 TRUE), /* pcrel_offset */
5bd4f169
AM
410
411 /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the
412 symbol. */
413 HOWTO (R_PPC64_GOT16, /* type */
414 0, /* rightshift */
415 1, /* size (0 = byte, 1 = short, 2 = long) */
416 16, /* bitsize */
b34976b6 417 FALSE, /* pc_relative */
5bd4f169
AM
418 0, /* bitpos */
419 complain_overflow_signed, /* complain_on_overflow */
805fc799 420 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 421 "R_PPC64_GOT16", /* name */
b34976b6 422 FALSE, /* partial_inplace */
5bd4f169
AM
423 0, /* src_mask */
424 0xffff, /* dst_mask */
b34976b6 425 FALSE), /* pcrel_offset */
5bd4f169
AM
426
427 /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for
428 the symbol. */
429 HOWTO (R_PPC64_GOT16_LO, /* type */
430 0, /* rightshift */
431 1, /* size (0 = byte, 1 = short, 2 = long) */
432 16, /* bitsize */
b34976b6 433 FALSE, /* pc_relative */
5bd4f169
AM
434 0, /* bitpos */
435 complain_overflow_dont, /* complain_on_overflow */
805fc799 436 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 437 "R_PPC64_GOT16_LO", /* name */
b34976b6 438 FALSE, /* partial_inplace */
5bd4f169
AM
439 0, /* src_mask */
440 0xffff, /* dst_mask */
b34976b6 441 FALSE), /* pcrel_offset */
5bd4f169
AM
442
443 /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for
444 the symbol. */
445 HOWTO (R_PPC64_GOT16_HI, /* type */
446 16, /* rightshift */
447 1, /* size (0 = byte, 1 = short, 2 = long) */
448 16, /* bitsize */
b34976b6 449 FALSE, /* pc_relative */
5bd4f169
AM
450 0, /* bitpos */
451 complain_overflow_dont,/* complain_on_overflow */
805fc799 452 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 453 "R_PPC64_GOT16_HI", /* name */
b34976b6 454 FALSE, /* partial_inplace */
5bd4f169
AM
455 0, /* src_mask */
456 0xffff, /* dst_mask */
b34976b6 457 FALSE), /* pcrel_offset */
5bd4f169
AM
458
459 /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for
460 the symbol. */
461 HOWTO (R_PPC64_GOT16_HA, /* type */
462 16, /* rightshift */
463 1, /* size (0 = byte, 1 = short, 2 = long) */
464 16, /* bitsize */
b34976b6 465 FALSE, /* pc_relative */
5bd4f169
AM
466 0, /* bitpos */
467 complain_overflow_dont,/* complain_on_overflow */
805fc799 468 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 469 "R_PPC64_GOT16_HA", /* name */
b34976b6 470 FALSE, /* partial_inplace */
5bd4f169
AM
471 0, /* src_mask */
472 0xffff, /* dst_mask */
b34976b6 473 FALSE), /* pcrel_offset */
5bd4f169
AM
474
475 /* This is used only by the dynamic linker. The symbol should exist
476 both in the object being run and in some shared library. The
477 dynamic linker copies the data addressed by the symbol from the
478 shared library into the object, because the object being
479 run has to have the data at some particular address. */
480 HOWTO (R_PPC64_COPY, /* type */
481 0, /* rightshift */
f5e87a1d
AM
482 0, /* this one is variable size */
483 0, /* bitsize */
b34976b6 484 FALSE, /* pc_relative */
5bd4f169 485 0, /* bitpos */
f5e87a1d
AM
486 complain_overflow_dont, /* complain_on_overflow */
487 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 488 "R_PPC64_COPY", /* name */
b34976b6 489 FALSE, /* partial_inplace */
5bd4f169
AM
490 0, /* src_mask */
491 0, /* dst_mask */
b34976b6 492 FALSE), /* pcrel_offset */
5bd4f169
AM
493
494 /* Like R_PPC64_ADDR64, but used when setting global offset table
495 entries. */
496 HOWTO (R_PPC64_GLOB_DAT, /* type */
497 0, /* rightshift */
498 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
499 64, /* bitsize */
b34976b6 500 FALSE, /* pc_relative */
5bd4f169
AM
501 0, /* bitpos */
502 complain_overflow_dont, /* complain_on_overflow */
805fc799 503 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 504 "R_PPC64_GLOB_DAT", /* name */
b34976b6 505 FALSE, /* partial_inplace */
5bd4f169 506 0, /* src_mask */
f5e87a1d 507 ONES (64), /* dst_mask */
b34976b6 508 FALSE), /* pcrel_offset */
5bd4f169
AM
509
510 /* Created by the link editor. Marks a procedure linkage table
511 entry for a symbol. */
512 HOWTO (R_PPC64_JMP_SLOT, /* type */
513 0, /* rightshift */
514 0, /* size (0 = byte, 1 = short, 2 = long) */
515 0, /* bitsize */
b34976b6 516 FALSE, /* pc_relative */
5bd4f169
AM
517 0, /* bitpos */
518 complain_overflow_dont, /* complain_on_overflow */
805fc799 519 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 520 "R_PPC64_JMP_SLOT", /* name */
b34976b6 521 FALSE, /* partial_inplace */
5bd4f169
AM
522 0, /* src_mask */
523 0, /* dst_mask */
b34976b6 524 FALSE), /* pcrel_offset */
5bd4f169
AM
525
526 /* Used only by the dynamic linker. When the object is run, this
527 doubleword64 is set to the load address of the object, plus the
528 addend. */
529 HOWTO (R_PPC64_RELATIVE, /* type */
530 0, /* rightshift */
531 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
532 64, /* bitsize */
b34976b6 533 FALSE, /* pc_relative */
5bd4f169
AM
534 0, /* bitpos */
535 complain_overflow_dont, /* complain_on_overflow */
536 bfd_elf_generic_reloc, /* special_function */
537 "R_PPC64_RELATIVE", /* name */
b34976b6 538 FALSE, /* partial_inplace */
5bd4f169 539 0, /* src_mask */
f5e87a1d 540 ONES (64), /* dst_mask */
b34976b6 541 FALSE), /* pcrel_offset */
5bd4f169
AM
542
543 /* Like R_PPC64_ADDR32, but may be unaligned. */
544 HOWTO (R_PPC64_UADDR32, /* type */
545 0, /* rightshift */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
547 32, /* bitsize */
b34976b6 548 FALSE, /* pc_relative */
5bd4f169
AM
549 0, /* bitpos */
550 complain_overflow_bitfield, /* complain_on_overflow */
551 bfd_elf_generic_reloc, /* special_function */
552 "R_PPC64_UADDR32", /* name */
b34976b6 553 FALSE, /* partial_inplace */
5bd4f169
AM
554 0, /* src_mask */
555 0xffffffff, /* dst_mask */
b34976b6 556 FALSE), /* pcrel_offset */
5bd4f169
AM
557
558 /* Like R_PPC64_ADDR16, but may be unaligned. */
559 HOWTO (R_PPC64_UADDR16, /* type */
560 0, /* rightshift */
561 1, /* size (0 = byte, 1 = short, 2 = long) */
562 16, /* bitsize */
b34976b6 563 FALSE, /* pc_relative */
5bd4f169
AM
564 0, /* bitpos */
565 complain_overflow_bitfield, /* complain_on_overflow */
566 bfd_elf_generic_reloc, /* special_function */
567 "R_PPC64_UADDR16", /* name */
b34976b6 568 FALSE, /* partial_inplace */
5bd4f169
AM
569 0, /* src_mask */
570 0xffff, /* dst_mask */
b34976b6 571 FALSE), /* pcrel_offset */
5bd4f169
AM
572
573 /* 32-bit PC relative. */
574 HOWTO (R_PPC64_REL32, /* type */
575 0, /* rightshift */
576 2, /* size (0 = byte, 1 = short, 2 = long) */
577 32, /* bitsize */
b34976b6 578 TRUE, /* pc_relative */
5bd4f169 579 0, /* bitpos */
cedb70c5 580 /* FIXME: Verify. Was complain_overflow_bitfield. */
5bd4f169
AM
581 complain_overflow_signed, /* complain_on_overflow */
582 bfd_elf_generic_reloc, /* special_function */
583 "R_PPC64_REL32", /* name */
b34976b6 584 FALSE, /* partial_inplace */
5bd4f169
AM
585 0, /* src_mask */
586 0xffffffff, /* dst_mask */
b34976b6 587 TRUE), /* pcrel_offset */
5bd4f169 588
10ed1bba 589 /* 32-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
590 HOWTO (R_PPC64_PLT32, /* type */
591 0, /* rightshift */
592 2, /* size (0 = byte, 1 = short, 2 = long) */
593 32, /* bitsize */
b34976b6 594 FALSE, /* pc_relative */
5bd4f169
AM
595 0, /* bitpos */
596 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 597 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 598 "R_PPC64_PLT32", /* name */
b34976b6 599 FALSE, /* partial_inplace */
5bd4f169 600 0, /* src_mask */
f5e87a1d 601 0xffffffff, /* dst_mask */
b34976b6 602 FALSE), /* pcrel_offset */
5bd4f169
AM
603
604 /* 32-bit PC relative relocation to the symbol's procedure linkage table.
605 FIXME: R_PPC64_PLTREL32 not supported. */
606 HOWTO (R_PPC64_PLTREL32, /* type */
607 0, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 32, /* bitsize */
b34976b6 610 TRUE, /* pc_relative */
5bd4f169
AM
611 0, /* bitpos */
612 complain_overflow_signed, /* complain_on_overflow */
613 bfd_elf_generic_reloc, /* special_function */
614 "R_PPC64_PLTREL32", /* name */
b34976b6 615 FALSE, /* partial_inplace */
5bd4f169 616 0, /* src_mask */
f5e87a1d 617 0xffffffff, /* dst_mask */
b34976b6 618 TRUE), /* pcrel_offset */
5bd4f169
AM
619
620 /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for
621 the symbol. */
622 HOWTO (R_PPC64_PLT16_LO, /* type */
623 0, /* rightshift */
624 1, /* size (0 = byte, 1 = short, 2 = long) */
625 16, /* bitsize */
b34976b6 626 FALSE, /* pc_relative */
5bd4f169
AM
627 0, /* bitpos */
628 complain_overflow_dont, /* complain_on_overflow */
805fc799 629 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 630 "R_PPC64_PLT16_LO", /* name */
b34976b6 631 FALSE, /* partial_inplace */
5bd4f169
AM
632 0, /* src_mask */
633 0xffff, /* dst_mask */
b34976b6 634 FALSE), /* pcrel_offset */
5bd4f169
AM
635
636 /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for
637 the symbol. */
638 HOWTO (R_PPC64_PLT16_HI, /* type */
639 16, /* rightshift */
640 1, /* size (0 = byte, 1 = short, 2 = long) */
641 16, /* bitsize */
b34976b6 642 FALSE, /* pc_relative */
5bd4f169
AM
643 0, /* bitpos */
644 complain_overflow_dont, /* complain_on_overflow */
805fc799 645 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 646 "R_PPC64_PLT16_HI", /* name */
b34976b6 647 FALSE, /* partial_inplace */
5bd4f169
AM
648 0, /* src_mask */
649 0xffff, /* dst_mask */
b34976b6 650 FALSE), /* pcrel_offset */
5bd4f169
AM
651
652 /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for
653 the symbol. */
654 HOWTO (R_PPC64_PLT16_HA, /* type */
655 16, /* rightshift */
656 1, /* size (0 = byte, 1 = short, 2 = long) */
657 16, /* bitsize */
b34976b6 658 FALSE, /* pc_relative */
5bd4f169
AM
659 0, /* bitpos */
660 complain_overflow_dont, /* complain_on_overflow */
805fc799 661 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 662 "R_PPC64_PLT16_HA", /* name */
b34976b6 663 FALSE, /* partial_inplace */
5bd4f169
AM
664 0, /* src_mask */
665 0xffff, /* dst_mask */
b34976b6 666 FALSE), /* pcrel_offset */
5bd4f169 667
c061c2d8 668 /* 16-bit section relative relocation. */
5bd4f169
AM
669 HOWTO (R_PPC64_SECTOFF, /* type */
670 0, /* rightshift */
c061c2d8
AM
671 1, /* size (0 = byte, 1 = short, 2 = long) */
672 16, /* bitsize */
b34976b6 673 FALSE, /* pc_relative */
5bd4f169
AM
674 0, /* bitpos */
675 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 676 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 677 "R_PPC64_SECTOFF", /* name */
b34976b6 678 FALSE, /* partial_inplace */
5bd4f169 679 0, /* src_mask */
c061c2d8 680 0xffff, /* dst_mask */
b34976b6 681 FALSE), /* pcrel_offset */
5bd4f169 682
c061c2d8 683 /* Like R_PPC64_SECTOFF, but no overflow warning. */
5bd4f169
AM
684 HOWTO (R_PPC64_SECTOFF_LO, /* type */
685 0, /* rightshift */
686 1, /* size (0 = byte, 1 = short, 2 = long) */
687 16, /* bitsize */
b34976b6 688 FALSE, /* pc_relative */
5bd4f169
AM
689 0, /* bitpos */
690 complain_overflow_dont, /* complain_on_overflow */
805fc799 691 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 692 "R_PPC64_SECTOFF_LO", /* name */
b34976b6 693 FALSE, /* partial_inplace */
5bd4f169
AM
694 0, /* src_mask */
695 0xffff, /* dst_mask */
b34976b6 696 FALSE), /* pcrel_offset */
5bd4f169
AM
697
698 /* 16-bit upper half section relative relocation. */
699 HOWTO (R_PPC64_SECTOFF_HI, /* type */
700 16, /* rightshift */
701 1, /* size (0 = byte, 1 = short, 2 = long) */
702 16, /* bitsize */
b34976b6 703 FALSE, /* pc_relative */
5bd4f169
AM
704 0, /* bitpos */
705 complain_overflow_dont, /* complain_on_overflow */
805fc799 706 ppc64_elf_sectoff_reloc, /* special_function */
5bd4f169 707 "R_PPC64_SECTOFF_HI", /* name */
b34976b6 708 FALSE, /* partial_inplace */
5bd4f169
AM
709 0, /* src_mask */
710 0xffff, /* dst_mask */
b34976b6 711 FALSE), /* pcrel_offset */
5bd4f169
AM
712
713 /* 16-bit upper half adjusted section relative relocation. */
714 HOWTO (R_PPC64_SECTOFF_HA, /* type */
715 16, /* rightshift */
716 1, /* size (0 = byte, 1 = short, 2 = long) */
717 16, /* bitsize */
b34976b6 718 FALSE, /* pc_relative */
5bd4f169
AM
719 0, /* bitpos */
720 complain_overflow_dont, /* complain_on_overflow */
805fc799 721 ppc64_elf_sectoff_ha_reloc, /* special_function */
5bd4f169 722 "R_PPC64_SECTOFF_HA", /* name */
b34976b6 723 FALSE, /* partial_inplace */
5bd4f169
AM
724 0, /* src_mask */
725 0xffff, /* dst_mask */
b34976b6 726 FALSE), /* pcrel_offset */
5bd4f169 727
04c9666a
AM
728 /* Like R_PPC64_REL24 without touching the two least significant bits. */
729 HOWTO (R_PPC64_REL30, /* type */
5bd4f169
AM
730 2, /* rightshift */
731 2, /* size (0 = byte, 1 = short, 2 = long) */
732 30, /* bitsize */
b34976b6 733 TRUE, /* pc_relative */
5bd4f169
AM
734 0, /* bitpos */
735 complain_overflow_dont, /* complain_on_overflow */
736 bfd_elf_generic_reloc, /* special_function */
04c9666a 737 "R_PPC64_REL30", /* name */
b34976b6 738 FALSE, /* partial_inplace */
d006db6c 739 0, /* src_mask */
5bd4f169 740 0xfffffffc, /* dst_mask */
b34976b6 741 TRUE), /* pcrel_offset */
5bd4f169
AM
742
743 /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */
744
745 /* A standard 64-bit relocation. */
746 HOWTO (R_PPC64_ADDR64, /* type */
747 0, /* rightshift */
748 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
749 64, /* bitsize */
b34976b6 750 FALSE, /* pc_relative */
5bd4f169
AM
751 0, /* bitpos */
752 complain_overflow_dont, /* complain_on_overflow */
753 bfd_elf_generic_reloc, /* special_function */
754 "R_PPC64_ADDR64", /* name */
b34976b6 755 FALSE, /* partial_inplace */
5bd4f169 756 0, /* src_mask */
f5e87a1d 757 ONES (64), /* dst_mask */
b34976b6 758 FALSE), /* pcrel_offset */
5bd4f169
AM
759
760 /* The bits 32-47 of an address. */
761 HOWTO (R_PPC64_ADDR16_HIGHER, /* type */
762 32, /* rightshift */
763 1, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
b34976b6 765 FALSE, /* pc_relative */
5bd4f169
AM
766 0, /* bitpos */
767 complain_overflow_dont, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_PPC64_ADDR16_HIGHER", /* name */
b34976b6 770 FALSE, /* partial_inplace */
5bd4f169
AM
771 0, /* src_mask */
772 0xffff, /* dst_mask */
b34976b6 773 FALSE), /* pcrel_offset */
5bd4f169
AM
774
775 /* The bits 32-47 of an address, plus 1 if the contents of the low
776 16 bits, treated as a signed number, is negative. */
777 HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */
778 32, /* rightshift */
779 1, /* size (0 = byte, 1 = short, 2 = long) */
780 16, /* bitsize */
b34976b6 781 FALSE, /* pc_relative */
5bd4f169
AM
782 0, /* bitpos */
783 complain_overflow_dont, /* complain_on_overflow */
805fc799 784 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 785 "R_PPC64_ADDR16_HIGHERA", /* name */
b34976b6 786 FALSE, /* partial_inplace */
5bd4f169
AM
787 0, /* src_mask */
788 0xffff, /* dst_mask */
b34976b6 789 FALSE), /* pcrel_offset */
5bd4f169
AM
790
791 /* The bits 48-63 of an address. */
792 HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */
793 48, /* rightshift */
794 1, /* size (0 = byte, 1 = short, 2 = long) */
795 16, /* bitsize */
b34976b6 796 FALSE, /* pc_relative */
5bd4f169
AM
797 0, /* bitpos */
798 complain_overflow_dont, /* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_PPC64_ADDR16_HIGHEST", /* name */
b34976b6 801 FALSE, /* partial_inplace */
5bd4f169
AM
802 0, /* src_mask */
803 0xffff, /* dst_mask */
b34976b6 804 FALSE), /* pcrel_offset */
5bd4f169
AM
805
806 /* The bits 48-63 of an address, plus 1 if the contents of the low
807 16 bits, treated as a signed number, is negative. */
808 HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */
809 48, /* rightshift */
810 1, /* size (0 = byte, 1 = short, 2 = long) */
811 16, /* bitsize */
b34976b6 812 FALSE, /* pc_relative */
5bd4f169
AM
813 0, /* bitpos */
814 complain_overflow_dont, /* complain_on_overflow */
805fc799 815 ppc64_elf_ha_reloc, /* special_function */
5bd4f169 816 "R_PPC64_ADDR16_HIGHESTA", /* name */
b34976b6 817 FALSE, /* partial_inplace */
5bd4f169
AM
818 0, /* src_mask */
819 0xffff, /* dst_mask */
b34976b6 820 FALSE), /* pcrel_offset */
5bd4f169
AM
821
822 /* Like ADDR64, but may be unaligned. */
823 HOWTO (R_PPC64_UADDR64, /* type */
824 0, /* rightshift */
825 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
826 64, /* bitsize */
b34976b6 827 FALSE, /* pc_relative */
5bd4f169
AM
828 0, /* bitpos */
829 complain_overflow_dont, /* complain_on_overflow */
830 bfd_elf_generic_reloc, /* special_function */
831 "R_PPC64_UADDR64", /* name */
b34976b6 832 FALSE, /* partial_inplace */
5bd4f169 833 0, /* src_mask */
f5e87a1d 834 ONES (64), /* dst_mask */
b34976b6 835 FALSE), /* pcrel_offset */
5bd4f169
AM
836
837 /* 64-bit relative relocation. */
838 HOWTO (R_PPC64_REL64, /* type */
839 0, /* rightshift */
840 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
841 64, /* bitsize */
b34976b6 842 TRUE, /* pc_relative */
5bd4f169
AM
843 0, /* bitpos */
844 complain_overflow_dont, /* complain_on_overflow */
845 bfd_elf_generic_reloc, /* special_function */
846 "R_PPC64_REL64", /* name */
b34976b6 847 FALSE, /* partial_inplace */
5bd4f169 848 0, /* src_mask */
f5e87a1d 849 ONES (64), /* dst_mask */
b34976b6 850 TRUE), /* pcrel_offset */
5bd4f169 851
cedb70c5 852 /* 64-bit relocation to the symbol's procedure linkage table. */
5bd4f169
AM
853 HOWTO (R_PPC64_PLT64, /* type */
854 0, /* rightshift */
855 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
856 64, /* bitsize */
b34976b6 857 FALSE, /* pc_relative */
5bd4f169
AM
858 0, /* bitpos */
859 complain_overflow_dont, /* complain_on_overflow */
805fc799 860 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 861 "R_PPC64_PLT64", /* name */
b34976b6 862 FALSE, /* partial_inplace */
5bd4f169 863 0, /* src_mask */
f5e87a1d 864 ONES (64), /* dst_mask */
b34976b6 865 FALSE), /* pcrel_offset */
5bd4f169
AM
866
867 /* 64-bit PC relative relocation to the symbol's procedure linkage
868 table. */
869 /* FIXME: R_PPC64_PLTREL64 not supported. */
870 HOWTO (R_PPC64_PLTREL64, /* type */
871 0, /* rightshift */
872 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
873 64, /* bitsize */
b34976b6 874 TRUE, /* pc_relative */
5bd4f169
AM
875 0, /* bitpos */
876 complain_overflow_dont, /* complain_on_overflow */
805fc799 877 ppc64_elf_unhandled_reloc, /* special_function */
5bd4f169 878 "R_PPC64_PLTREL64", /* name */
b34976b6 879 FALSE, /* partial_inplace */
5bd4f169 880 0, /* src_mask */
f5e87a1d 881 ONES (64), /* dst_mask */
b34976b6 882 TRUE), /* pcrel_offset */
5bd4f169
AM
883
884 /* 16 bit TOC-relative relocation. */
885
886 /* R_PPC64_TOC16 47 half16* S + A - .TOC. */
887 HOWTO (R_PPC64_TOC16, /* type */
888 0, /* rightshift */
889 1, /* size (0 = byte, 1 = short, 2 = long) */
890 16, /* bitsize */
b34976b6 891 FALSE, /* pc_relative */
5bd4f169
AM
892 0, /* bitpos */
893 complain_overflow_signed, /* complain_on_overflow */
805fc799 894 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 895 "R_PPC64_TOC16", /* name */
b34976b6 896 FALSE, /* partial_inplace */
5bd4f169
AM
897 0, /* src_mask */
898 0xffff, /* dst_mask */
b34976b6 899 FALSE), /* pcrel_offset */
5bd4f169
AM
900
901 /* 16 bit TOC-relative relocation without overflow. */
902
903 /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */
904 HOWTO (R_PPC64_TOC16_LO, /* type */
905 0, /* rightshift */
906 1, /* size (0 = byte, 1 = short, 2 = long) */
907 16, /* bitsize */
b34976b6 908 FALSE, /* pc_relative */
5bd4f169
AM
909 0, /* bitpos */
910 complain_overflow_dont, /* complain_on_overflow */
805fc799 911 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 912 "R_PPC64_TOC16_LO", /* name */
b34976b6 913 FALSE, /* partial_inplace */
5bd4f169
AM
914 0, /* src_mask */
915 0xffff, /* dst_mask */
b34976b6 916 FALSE), /* pcrel_offset */
5bd4f169
AM
917
918 /* 16 bit TOC-relative relocation, high 16 bits. */
919
920 /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */
921 HOWTO (R_PPC64_TOC16_HI, /* type */
922 16, /* rightshift */
923 1, /* size (0 = byte, 1 = short, 2 = long) */
924 16, /* bitsize */
b34976b6 925 FALSE, /* pc_relative */
5bd4f169
AM
926 0, /* bitpos */
927 complain_overflow_dont, /* complain_on_overflow */
805fc799 928 ppc64_elf_toc_reloc, /* special_function */
5bd4f169 929 "R_PPC64_TOC16_HI", /* name */
b34976b6 930 FALSE, /* partial_inplace */
5bd4f169
AM
931 0, /* src_mask */
932 0xffff, /* dst_mask */
b34976b6 933 FALSE), /* pcrel_offset */
5bd4f169
AM
934
935 /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the
936 contents of the low 16 bits, treated as a signed number, is
937 negative. */
938
939 /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */
940 HOWTO (R_PPC64_TOC16_HA, /* type */
941 16, /* rightshift */
942 1, /* size (0 = byte, 1 = short, 2 = long) */
943 16, /* bitsize */
b34976b6 944 FALSE, /* pc_relative */
5bd4f169
AM
945 0, /* bitpos */
946 complain_overflow_dont, /* complain_on_overflow */
805fc799 947 ppc64_elf_toc_ha_reloc, /* special_function */
5bd4f169 948 "R_PPC64_TOC16_HA", /* name */
b34976b6 949 FALSE, /* partial_inplace */
5bd4f169
AM
950 0, /* src_mask */
951 0xffff, /* dst_mask */
b34976b6 952 FALSE), /* pcrel_offset */
5bd4f169
AM
953
954 /* 64-bit relocation; insert value of TOC base (.TOC.). */
955
956 /* R_PPC64_TOC 51 doubleword64 .TOC. */
957 HOWTO (R_PPC64_TOC, /* type */
958 0, /* rightshift */
959 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */
960 64, /* bitsize */
b34976b6 961 FALSE, /* pc_relative */
5bd4f169
AM
962 0, /* bitpos */
963 complain_overflow_bitfield, /* complain_on_overflow */
805fc799 964 ppc64_elf_toc64_reloc, /* special_function */
5bd4f169 965 "R_PPC64_TOC", /* name */
b34976b6 966 FALSE, /* partial_inplace */
5bd4f169 967 0, /* src_mask */
f5e87a1d 968 ONES (64), /* dst_mask */
b34976b6 969 FALSE), /* pcrel_offset */
5bd4f169
AM
970
971 /* Like R_PPC64_GOT16, but also informs the link editor that the
972 value to relocate may (!) refer to a PLT entry which the link
973 editor (a) may replace with the symbol value. If the link editor
974 is unable to fully resolve the symbol, it may (b) create a PLT
975 entry and store the address to the new PLT entry in the GOT.
976 This permits lazy resolution of function symbols at run time.
977 The link editor may also skip all of this and just (c) emit a
978 R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */
979 /* FIXME: R_PPC64_PLTGOT16 not implemented. */
980 HOWTO (R_PPC64_PLTGOT16, /* type */
981 0, /* rightshift */
982 1, /* size (0 = byte, 1 = short, 2 = long) */
983 16, /* bitsize */
b34976b6 984 FALSE, /* pc_relative */
5bd4f169
AM
985 0, /* bitpos */
986 complain_overflow_signed, /* complain_on_overflow */
805fc799 987 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb
AM
988 "R_PPC64_PLTGOT16", /* name */
989 FALSE, /* partial_inplace */
990 0, /* src_mask */
991 0xffff, /* dst_mask */
992 FALSE), /* pcrel_offset */
993
994 /* Like R_PPC64_PLTGOT16, but without overflow. */
995 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
996 HOWTO (R_PPC64_PLTGOT16_LO, /* type */
997 0, /* rightshift */
998 1, /* size (0 = byte, 1 = short, 2 = long) */
999 16, /* bitsize */
1000 FALSE, /* pc_relative */
1001 0, /* bitpos */
1002 complain_overflow_dont, /* complain_on_overflow */
1003 ppc64_elf_unhandled_reloc, /* special_function */
1004 "R_PPC64_PLTGOT16_LO", /* name */
1005 FALSE, /* partial_inplace */
1006 0, /* src_mask */
1007 0xffff, /* dst_mask */
1008 FALSE), /* pcrel_offset */
1009
1010 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */
1011 /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */
1012 HOWTO (R_PPC64_PLTGOT16_HI, /* type */
1013 16, /* rightshift */
1014 1, /* size (0 = byte, 1 = short, 2 = long) */
1015 16, /* bitsize */
1016 FALSE, /* pc_relative */
1017 0, /* bitpos */
1018 complain_overflow_dont, /* complain_on_overflow */
1019 ppc64_elf_unhandled_reloc, /* special_function */
1020 "R_PPC64_PLTGOT16_HI", /* name */
1021 FALSE, /* partial_inplace */
1022 0, /* src_mask */
1023 0xffff, /* dst_mask */
1024 FALSE), /* pcrel_offset */
1025
1026 /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus
1027 1 if the contents of the low 16 bits, treated as a signed number,
1028 is negative. */
1029 /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */
1030 HOWTO (R_PPC64_PLTGOT16_HA, /* type */
1031 16, /* rightshift */
1032 1, /* size (0 = byte, 1 = short, 2 = long) */
1033 16, /* bitsize */
1034 FALSE, /* pc_relative */
1035 0, /* bitpos */
1036 complain_overflow_dont,/* complain_on_overflow */
1037 ppc64_elf_unhandled_reloc, /* special_function */
1038 "R_PPC64_PLTGOT16_HA", /* name */
1039 FALSE, /* partial_inplace */
1040 0, /* src_mask */
1041 0xffff, /* dst_mask */
1042 FALSE), /* pcrel_offset */
1043
1044 /* Like R_PPC64_ADDR16, but for instructions with a DS field. */
1045 HOWTO (R_PPC64_ADDR16_DS, /* type */
1046 0, /* rightshift */
1047 1, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_bitfield, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_PPC64_ADDR16_DS", /* name */
1054 FALSE, /* partial_inplace */
1055 0, /* src_mask */
1056 0xfffc, /* dst_mask */
1057 FALSE), /* pcrel_offset */
1058
1059 /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */
1060 HOWTO (R_PPC64_ADDR16_LO_DS, /* type */
1061 0, /* rightshift */
1062 1, /* size (0 = byte, 1 = short, 2 = long) */
1063 16, /* bitsize */
1064 FALSE, /* pc_relative */
1065 0, /* bitpos */
1066 complain_overflow_dont,/* complain_on_overflow */
1067 bfd_elf_generic_reloc, /* special_function */
1068 "R_PPC64_ADDR16_LO_DS",/* name */
1069 FALSE, /* partial_inplace */
1070 0, /* src_mask */
1071 0xfffc, /* dst_mask */
1072 FALSE), /* pcrel_offset */
1073
1074 /* Like R_PPC64_GOT16, but for instructions with a DS field. */
1075 HOWTO (R_PPC64_GOT16_DS, /* type */
1076 0, /* rightshift */
1077 1, /* size (0 = byte, 1 = short, 2 = long) */
1078 16, /* bitsize */
1079 FALSE, /* pc_relative */
1080 0, /* bitpos */
1081 complain_overflow_signed, /* complain_on_overflow */
1082 ppc64_elf_unhandled_reloc, /* special_function */
1083 "R_PPC64_GOT16_DS", /* name */
1084 FALSE, /* partial_inplace */
1085 0, /* src_mask */
1086 0xfffc, /* dst_mask */
1087 FALSE), /* pcrel_offset */
1088
1089 /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */
1090 HOWTO (R_PPC64_GOT16_LO_DS, /* type */
1091 0, /* rightshift */
1092 1, /* size (0 = byte, 1 = short, 2 = long) */
1093 16, /* bitsize */
1094 FALSE, /* pc_relative */
1095 0, /* bitpos */
1096 complain_overflow_dont, /* complain_on_overflow */
1097 ppc64_elf_unhandled_reloc, /* special_function */
1098 "R_PPC64_GOT16_LO_DS", /* name */
1099 FALSE, /* partial_inplace */
1100 0, /* src_mask */
1101 0xfffc, /* dst_mask */
1102 FALSE), /* pcrel_offset */
1103
1104 /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */
1105 HOWTO (R_PPC64_PLT16_LO_DS, /* type */
1106 0, /* rightshift */
1107 1, /* size (0 = byte, 1 = short, 2 = long) */
1108 16, /* bitsize */
1109 FALSE, /* pc_relative */
1110 0, /* bitpos */
1111 complain_overflow_dont, /* complain_on_overflow */
1112 ppc64_elf_unhandled_reloc, /* special_function */
1113 "R_PPC64_PLT16_LO_DS", /* name */
1114 FALSE, /* partial_inplace */
1115 0, /* src_mask */
1116 0xfffc, /* dst_mask */
1117 FALSE), /* pcrel_offset */
1118
1119 /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */
1120 HOWTO (R_PPC64_SECTOFF_DS, /* type */
1121 0, /* rightshift */
1122 1, /* size (0 = byte, 1 = short, 2 = long) */
1123 16, /* bitsize */
1124 FALSE, /* pc_relative */
1125 0, /* bitpos */
1126 complain_overflow_bitfield, /* complain_on_overflow */
1127 ppc64_elf_sectoff_reloc, /* special_function */
1128 "R_PPC64_SECTOFF_DS", /* name */
1129 FALSE, /* partial_inplace */
1130 0, /* src_mask */
1131 0xfffc, /* dst_mask */
1132 FALSE), /* pcrel_offset */
1133
1134 /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */
1135 HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */
1136 0, /* rightshift */
1137 1, /* size (0 = byte, 1 = short, 2 = long) */
1138 16, /* bitsize */
1139 FALSE, /* pc_relative */
1140 0, /* bitpos */
1141 complain_overflow_dont, /* complain_on_overflow */
1142 ppc64_elf_sectoff_reloc, /* special_function */
1143 "R_PPC64_SECTOFF_LO_DS",/* name */
1144 FALSE, /* partial_inplace */
1145 0, /* src_mask */
1146 0xfffc, /* dst_mask */
1147 FALSE), /* pcrel_offset */
1148
1149 /* Like R_PPC64_TOC16, but for instructions with a DS field. */
1150 HOWTO (R_PPC64_TOC16_DS, /* type */
1151 0, /* rightshift */
1152 1, /* size (0 = byte, 1 = short, 2 = long) */
1153 16, /* bitsize */
1154 FALSE, /* pc_relative */
1155 0, /* bitpos */
1156 complain_overflow_signed, /* complain_on_overflow */
1157 ppc64_elf_toc_reloc, /* special_function */
1158 "R_PPC64_TOC16_DS", /* name */
1159 FALSE, /* partial_inplace */
1160 0, /* src_mask */
1161 0xfffc, /* dst_mask */
1162 FALSE), /* pcrel_offset */
1163
1164 /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */
1165 HOWTO (R_PPC64_TOC16_LO_DS, /* type */
1166 0, /* rightshift */
1167 1, /* size (0 = byte, 1 = short, 2 = long) */
1168 16, /* bitsize */
1169 FALSE, /* pc_relative */
1170 0, /* bitpos */
1171 complain_overflow_dont, /* complain_on_overflow */
1172 ppc64_elf_toc_reloc, /* special_function */
1173 "R_PPC64_TOC16_LO_DS", /* name */
1174 FALSE, /* partial_inplace */
1175 0, /* src_mask */
1176 0xfffc, /* dst_mask */
1177 FALSE), /* pcrel_offset */
1178
1179 /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */
1180 /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */
1181 HOWTO (R_PPC64_PLTGOT16_DS, /* type */
1182 0, /* rightshift */
1183 1, /* size (0 = byte, 1 = short, 2 = long) */
1184 16, /* bitsize */
1185 FALSE, /* pc_relative */
1186 0, /* bitpos */
1187 complain_overflow_signed, /* complain_on_overflow */
1188 ppc64_elf_unhandled_reloc, /* special_function */
1189 "R_PPC64_PLTGOT16_DS", /* name */
1190 FALSE, /* partial_inplace */
1191 0, /* src_mask */
1192 0xfffc, /* dst_mask */
1193 FALSE), /* pcrel_offset */
1194
1195 /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */
1196 /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */
1197 HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */
1198 0, /* rightshift */
1199 1, /* size (0 = byte, 1 = short, 2 = long) */
1200 16, /* bitsize */
1201 FALSE, /* pc_relative */
1202 0, /* bitpos */
1203 complain_overflow_dont, /* complain_on_overflow */
1204 ppc64_elf_unhandled_reloc, /* special_function */
1205 "R_PPC64_PLTGOT16_LO_DS",/* name */
1206 FALSE, /* partial_inplace */
1207 0, /* src_mask */
1208 0xfffc, /* dst_mask */
1209 FALSE), /* pcrel_offset */
1210
1211 /* Marker reloc for TLS. */
1212 HOWTO (R_PPC64_TLS,
1213 0, /* rightshift */
1214 2, /* size (0 = byte, 1 = short, 2 = long) */
1215 32, /* bitsize */
1216 FALSE, /* pc_relative */
1217 0, /* bitpos */
1218 complain_overflow_dont, /* complain_on_overflow */
1219 bfd_elf_generic_reloc, /* special_function */
1220 "R_PPC64_TLS", /* name */
1221 FALSE, /* partial_inplace */
1222 0, /* src_mask */
1223 0, /* dst_mask */
1224 FALSE), /* pcrel_offset */
1225
1226 /* Computes the load module index of the load module that contains the
1227 definition of its TLS sym. */
1228 HOWTO (R_PPC64_DTPMOD64,
1229 0, /* rightshift */
1230 4, /* size (0 = byte, 1 = short, 2 = long) */
1231 64, /* bitsize */
1232 FALSE, /* pc_relative */
1233 0, /* bitpos */
1234 complain_overflow_dont, /* complain_on_overflow */
1235 ppc64_elf_unhandled_reloc, /* special_function */
1236 "R_PPC64_DTPMOD64", /* name */
1237 FALSE, /* partial_inplace */
1238 0, /* src_mask */
1239 ONES (64), /* dst_mask */
1240 FALSE), /* pcrel_offset */
1241
1242 /* Computes a dtv-relative displacement, the difference between the value
1243 of sym+add and the base address of the thread-local storage block that
1244 contains the definition of sym, minus 0x8000. */
1245 HOWTO (R_PPC64_DTPREL64,
1246 0, /* rightshift */
1247 4, /* size (0 = byte, 1 = short, 2 = long) */
1248 64, /* bitsize */
1249 FALSE, /* pc_relative */
1250 0, /* bitpos */
1251 complain_overflow_dont, /* complain_on_overflow */
1252 ppc64_elf_unhandled_reloc, /* special_function */
1253 "R_PPC64_DTPREL64", /* name */
1254 FALSE, /* partial_inplace */
1255 0, /* src_mask */
1256 ONES (64), /* dst_mask */
1257 FALSE), /* pcrel_offset */
1258
1259 /* A 16 bit dtprel reloc. */
1260 HOWTO (R_PPC64_DTPREL16,
1261 0, /* rightshift */
1262 1, /* size (0 = byte, 1 = short, 2 = long) */
1263 16, /* bitsize */
1264 FALSE, /* pc_relative */
1265 0, /* bitpos */
1266 complain_overflow_signed, /* complain_on_overflow */
1267 ppc64_elf_unhandled_reloc, /* special_function */
1268 "R_PPC64_DTPREL16", /* name */
1269 FALSE, /* partial_inplace */
1270 0, /* src_mask */
1271 0xffff, /* dst_mask */
1272 FALSE), /* pcrel_offset */
1273
1274 /* Like DTPREL16, but no overflow. */
1275 HOWTO (R_PPC64_DTPREL16_LO,
1276 0, /* rightshift */
1277 1, /* size (0 = byte, 1 = short, 2 = long) */
1278 16, /* bitsize */
1279 FALSE, /* pc_relative */
1280 0, /* bitpos */
1281 complain_overflow_dont, /* complain_on_overflow */
1282 ppc64_elf_unhandled_reloc, /* special_function */
1283 "R_PPC64_DTPREL16_LO", /* name */
1284 FALSE, /* partial_inplace */
1285 0, /* src_mask */
1286 0xffff, /* dst_mask */
1287 FALSE), /* pcrel_offset */
1288
1289 /* Like DTPREL16_LO, but next higher group of 16 bits. */
1290 HOWTO (R_PPC64_DTPREL16_HI,
1291 16, /* rightshift */
1292 1, /* size (0 = byte, 1 = short, 2 = long) */
1293 16, /* bitsize */
1294 FALSE, /* pc_relative */
1295 0, /* bitpos */
1296 complain_overflow_dont, /* complain_on_overflow */
1297 ppc64_elf_unhandled_reloc, /* special_function */
1298 "R_PPC64_DTPREL16_HI", /* name */
1299 FALSE, /* partial_inplace */
1300 0, /* src_mask */
1301 0xffff, /* dst_mask */
1302 FALSE), /* pcrel_offset */
1303
1304 /* Like DTPREL16_HI, but adjust for low 16 bits. */
1305 HOWTO (R_PPC64_DTPREL16_HA,
1306 16, /* rightshift */
1307 1, /* size (0 = byte, 1 = short, 2 = long) */
1308 16, /* bitsize */
1309 FALSE, /* pc_relative */
1310 0, /* bitpos */
1311 complain_overflow_dont, /* complain_on_overflow */
1312 ppc64_elf_unhandled_reloc, /* special_function */
1313 "R_PPC64_DTPREL16_HA", /* name */
1314 FALSE, /* partial_inplace */
1315 0, /* src_mask */
1316 0xffff, /* dst_mask */
1317 FALSE), /* pcrel_offset */
1318
1319 /* Like DTPREL16_HI, but next higher group of 16 bits. */
1320 HOWTO (R_PPC64_DTPREL16_HIGHER,
1321 32, /* rightshift */
1322 1, /* size (0 = byte, 1 = short, 2 = long) */
1323 16, /* bitsize */
1324 FALSE, /* pc_relative */
1325 0, /* bitpos */
1326 complain_overflow_dont, /* complain_on_overflow */
1327 ppc64_elf_unhandled_reloc, /* special_function */
1328 "R_PPC64_DTPREL16_HIGHER", /* name */
1329 FALSE, /* partial_inplace */
1330 0, /* src_mask */
1331 0xffff, /* dst_mask */
1332 FALSE), /* pcrel_offset */
1333
1334 /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */
1335 HOWTO (R_PPC64_DTPREL16_HIGHERA,
1336 32, /* rightshift */
1337 1, /* size (0 = byte, 1 = short, 2 = long) */
1338 16, /* bitsize */
1339 FALSE, /* pc_relative */
1340 0, /* bitpos */
1341 complain_overflow_dont, /* complain_on_overflow */
1342 ppc64_elf_unhandled_reloc, /* special_function */
1343 "R_PPC64_DTPREL16_HIGHERA", /* name */
1344 FALSE, /* partial_inplace */
1345 0, /* src_mask */
1346 0xffff, /* dst_mask */
1347 FALSE), /* pcrel_offset */
1348
1349 /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */
1350 HOWTO (R_PPC64_DTPREL16_HIGHEST,
1351 48, /* rightshift */
1352 1, /* size (0 = byte, 1 = short, 2 = long) */
1353 16, /* bitsize */
1354 FALSE, /* pc_relative */
1355 0, /* bitpos */
1356 complain_overflow_dont, /* complain_on_overflow */
1357 ppc64_elf_unhandled_reloc, /* special_function */
1358 "R_PPC64_DTPREL16_HIGHEST", /* name */
1359 FALSE, /* partial_inplace */
1360 0, /* src_mask */
1361 0xffff, /* dst_mask */
1362 FALSE), /* pcrel_offset */
1363
1364 /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */
1365 HOWTO (R_PPC64_DTPREL16_HIGHESTA,
1366 48, /* rightshift */
1367 1, /* size (0 = byte, 1 = short, 2 = long) */
1368 16, /* bitsize */
1369 FALSE, /* pc_relative */
1370 0, /* bitpos */
1371 complain_overflow_dont, /* complain_on_overflow */
1372 ppc64_elf_unhandled_reloc, /* special_function */
1373 "R_PPC64_DTPREL16_HIGHESTA", /* name */
1374 FALSE, /* partial_inplace */
1375 0, /* src_mask */
1376 0xffff, /* dst_mask */
1377 FALSE), /* pcrel_offset */
1378
1379 /* Like DTPREL16, but for insns with a DS field. */
1380 HOWTO (R_PPC64_DTPREL16_DS,
1381 0, /* rightshift */
1382 1, /* size (0 = byte, 1 = short, 2 = long) */
1383 16, /* bitsize */
1384 FALSE, /* pc_relative */
1385 0, /* bitpos */
1386 complain_overflow_signed, /* complain_on_overflow */
1387 ppc64_elf_unhandled_reloc, /* special_function */
1388 "R_PPC64_DTPREL16_DS", /* name */
1389 FALSE, /* partial_inplace */
1390 0, /* src_mask */
1391 0xfffc, /* dst_mask */
1392 FALSE), /* pcrel_offset */
1393
1394 /* Like DTPREL16_DS, but no overflow. */
1395 HOWTO (R_PPC64_DTPREL16_LO_DS,
1396 0, /* rightshift */
1397 1, /* size (0 = byte, 1 = short, 2 = long) */
1398 16, /* bitsize */
1399 FALSE, /* pc_relative */
1400 0, /* bitpos */
1401 complain_overflow_dont, /* complain_on_overflow */
1402 ppc64_elf_unhandled_reloc, /* special_function */
1403 "R_PPC64_DTPREL16_LO_DS", /* name */
1404 FALSE, /* partial_inplace */
1405 0, /* src_mask */
1406 0xfffc, /* dst_mask */
1407 FALSE), /* pcrel_offset */
1408
1409 /* Computes a tp-relative displacement, the difference between the value of
1410 sym+add and the value of the thread pointer (r13). */
1411 HOWTO (R_PPC64_TPREL64,
1412 0, /* rightshift */
1413 4, /* size (0 = byte, 1 = short, 2 = long) */
1414 64, /* bitsize */
1415 FALSE, /* pc_relative */
1416 0, /* bitpos */
1417 complain_overflow_dont, /* complain_on_overflow */
1418 ppc64_elf_unhandled_reloc, /* special_function */
1419 "R_PPC64_TPREL64", /* name */
1420 FALSE, /* partial_inplace */
1421 0, /* src_mask */
1422 ONES (64), /* dst_mask */
1423 FALSE), /* pcrel_offset */
1424
1425 /* A 16 bit tprel reloc. */
1426 HOWTO (R_PPC64_TPREL16,
1427 0, /* rightshift */
1428 1, /* size (0 = byte, 1 = short, 2 = long) */
1429 16, /* bitsize */
1430 FALSE, /* pc_relative */
1431 0, /* bitpos */
1432 complain_overflow_signed, /* complain_on_overflow */
1433 ppc64_elf_unhandled_reloc, /* special_function */
1434 "R_PPC64_TPREL16", /* name */
1435 FALSE, /* partial_inplace */
1436 0, /* src_mask */
1437 0xffff, /* dst_mask */
1438 FALSE), /* pcrel_offset */
1439
1440 /* Like TPREL16, but no overflow. */
1441 HOWTO (R_PPC64_TPREL16_LO,
1442 0, /* rightshift */
1443 1, /* size (0 = byte, 1 = short, 2 = long) */
1444 16, /* bitsize */
1445 FALSE, /* pc_relative */
1446 0, /* bitpos */
1447 complain_overflow_dont, /* complain_on_overflow */
1448 ppc64_elf_unhandled_reloc, /* special_function */
1449 "R_PPC64_TPREL16_LO", /* name */
1450 FALSE, /* partial_inplace */
1451 0, /* src_mask */
1452 0xffff, /* dst_mask */
1453 FALSE), /* pcrel_offset */
1454
1455 /* Like TPREL16_LO, but next higher group of 16 bits. */
1456 HOWTO (R_PPC64_TPREL16_HI,
1457 16, /* rightshift */
1458 1, /* size (0 = byte, 1 = short, 2 = long) */
1459 16, /* bitsize */
1460 FALSE, /* pc_relative */
1461 0, /* bitpos */
1462 complain_overflow_dont, /* complain_on_overflow */
1463 ppc64_elf_unhandled_reloc, /* special_function */
1464 "R_PPC64_TPREL16_HI", /* name */
1465 FALSE, /* partial_inplace */
1466 0, /* src_mask */
1467 0xffff, /* dst_mask */
1468 FALSE), /* pcrel_offset */
1469
1470 /* Like TPREL16_HI, but adjust for low 16 bits. */
1471 HOWTO (R_PPC64_TPREL16_HA,
1472 16, /* rightshift */
1473 1, /* size (0 = byte, 1 = short, 2 = long) */
1474 16, /* bitsize */
1475 FALSE, /* pc_relative */
1476 0, /* bitpos */
1477 complain_overflow_dont, /* complain_on_overflow */
1478 ppc64_elf_unhandled_reloc, /* special_function */
1479 "R_PPC64_TPREL16_HA", /* name */
1480 FALSE, /* partial_inplace */
1481 0, /* src_mask */
1482 0xffff, /* dst_mask */
1483 FALSE), /* pcrel_offset */
1484
1485 /* Like TPREL16_HI, but next higher group of 16 bits. */
1486 HOWTO (R_PPC64_TPREL16_HIGHER,
1487 32, /* rightshift */
1488 1, /* size (0 = byte, 1 = short, 2 = long) */
1489 16, /* bitsize */
1490 FALSE, /* pc_relative */
1491 0, /* bitpos */
1492 complain_overflow_dont, /* complain_on_overflow */
1493 ppc64_elf_unhandled_reloc, /* special_function */
1494 "R_PPC64_TPREL16_HIGHER", /* name */
1495 FALSE, /* partial_inplace */
1496 0, /* src_mask */
1497 0xffff, /* dst_mask */
1498 FALSE), /* pcrel_offset */
1499
1500 /* Like TPREL16_HIGHER, but adjust for low 16 bits. */
1501 HOWTO (R_PPC64_TPREL16_HIGHERA,
1502 32, /* rightshift */
1503 1, /* size (0 = byte, 1 = short, 2 = long) */
1504 16, /* bitsize */
1505 FALSE, /* pc_relative */
1506 0, /* bitpos */
1507 complain_overflow_dont, /* complain_on_overflow */
1508 ppc64_elf_unhandled_reloc, /* special_function */
1509 "R_PPC64_TPREL16_HIGHERA", /* name */
1510 FALSE, /* partial_inplace */
1511 0, /* src_mask */
1512 0xffff, /* dst_mask */
1513 FALSE), /* pcrel_offset */
1514
1515 /* Like TPREL16_HIGHER, but next higher group of 16 bits. */
1516 HOWTO (R_PPC64_TPREL16_HIGHEST,
1517 48, /* rightshift */
1518 1, /* size (0 = byte, 1 = short, 2 = long) */
1519 16, /* bitsize */
1520 FALSE, /* pc_relative */
1521 0, /* bitpos */
1522 complain_overflow_dont, /* complain_on_overflow */
1523 ppc64_elf_unhandled_reloc, /* special_function */
1524 "R_PPC64_TPREL16_HIGHEST", /* name */
1525 FALSE, /* partial_inplace */
1526 0, /* src_mask */
1527 0xffff, /* dst_mask */
1528 FALSE), /* pcrel_offset */
1529
1530 /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */
1531 HOWTO (R_PPC64_TPREL16_HIGHESTA,
1532 48, /* rightshift */
1533 1, /* size (0 = byte, 1 = short, 2 = long) */
1534 16, /* bitsize */
1535 FALSE, /* pc_relative */
1536 0, /* bitpos */
1537 complain_overflow_dont, /* complain_on_overflow */
1538 ppc64_elf_unhandled_reloc, /* special_function */
1539 "R_PPC64_TPREL16_HIGHESTA", /* name */
1540 FALSE, /* partial_inplace */
1541 0, /* src_mask */
1542 0xffff, /* dst_mask */
1543 FALSE), /* pcrel_offset */
1544
1545 /* Like TPREL16, but for insns with a DS field. */
1546 HOWTO (R_PPC64_TPREL16_DS,
1547 0, /* rightshift */
1548 1, /* size (0 = byte, 1 = short, 2 = long) */
1549 16, /* bitsize */
1550 FALSE, /* pc_relative */
1551 0, /* bitpos */
1552 complain_overflow_signed, /* complain_on_overflow */
1553 ppc64_elf_unhandled_reloc, /* special_function */
1554 "R_PPC64_TPREL16_DS", /* name */
1555 FALSE, /* partial_inplace */
1556 0, /* src_mask */
1557 0xfffc, /* dst_mask */
1558 FALSE), /* pcrel_offset */
1559
1560 /* Like TPREL16_DS, but no overflow. */
1561 HOWTO (R_PPC64_TPREL16_LO_DS,
1562 0, /* rightshift */
1563 1, /* size (0 = byte, 1 = short, 2 = long) */
1564 16, /* bitsize */
1565 FALSE, /* pc_relative */
1566 0, /* bitpos */
1567 complain_overflow_dont, /* complain_on_overflow */
1568 ppc64_elf_unhandled_reloc, /* special_function */
1569 "R_PPC64_TPREL16_LO_DS", /* name */
1570 FALSE, /* partial_inplace */
1571 0, /* src_mask */
1572 0xfffc, /* dst_mask */
1573 FALSE), /* pcrel_offset */
1574
1575 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1576 with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset
1577 to the first entry relative to the TOC base (r2). */
1578 HOWTO (R_PPC64_GOT_TLSGD16,
1579 0, /* rightshift */
1580 1, /* size (0 = byte, 1 = short, 2 = long) */
1581 16, /* bitsize */
1582 FALSE, /* pc_relative */
1583 0, /* bitpos */
1584 complain_overflow_signed, /* complain_on_overflow */
1585 ppc64_elf_unhandled_reloc, /* special_function */
1586 "R_PPC64_GOT_TLSGD16", /* name */
b34976b6 1587 FALSE, /* partial_inplace */
5bd4f169
AM
1588 0, /* src_mask */
1589 0xffff, /* dst_mask */
b34976b6 1590 FALSE), /* pcrel_offset */
5bd4f169 1591
411e1bfb
AM
1592 /* Like GOT_TLSGD16, but no overflow. */
1593 HOWTO (R_PPC64_GOT_TLSGD16_LO,
5bd4f169
AM
1594 0, /* rightshift */
1595 1, /* size (0 = byte, 1 = short, 2 = long) */
1596 16, /* bitsize */
b34976b6 1597 FALSE, /* pc_relative */
5bd4f169
AM
1598 0, /* bitpos */
1599 complain_overflow_dont, /* complain_on_overflow */
805fc799 1600 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1601 "R_PPC64_GOT_TLSGD16_LO", /* name */
b34976b6 1602 FALSE, /* partial_inplace */
5bd4f169
AM
1603 0, /* src_mask */
1604 0xffff, /* dst_mask */
b34976b6 1605 FALSE), /* pcrel_offset */
5bd4f169 1606
411e1bfb
AM
1607 /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */
1608 HOWTO (R_PPC64_GOT_TLSGD16_HI,
5bd4f169
AM
1609 16, /* rightshift */
1610 1, /* size (0 = byte, 1 = short, 2 = long) */
1611 16, /* bitsize */
b34976b6 1612 FALSE, /* pc_relative */
5bd4f169
AM
1613 0, /* bitpos */
1614 complain_overflow_dont, /* complain_on_overflow */
805fc799 1615 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1616 "R_PPC64_GOT_TLSGD16_HI", /* name */
b34976b6 1617 FALSE, /* partial_inplace */
5bd4f169
AM
1618 0, /* src_mask */
1619 0xffff, /* dst_mask */
b34976b6 1620 FALSE), /* pcrel_offset */
5bd4f169 1621
411e1bfb
AM
1622 /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */
1623 HOWTO (R_PPC64_GOT_TLSGD16_HA,
5bd4f169
AM
1624 16, /* rightshift */
1625 1, /* size (0 = byte, 1 = short, 2 = long) */
1626 16, /* bitsize */
b34976b6 1627 FALSE, /* pc_relative */
5bd4f169 1628 0, /* bitpos */
411e1bfb 1629 complain_overflow_dont, /* complain_on_overflow */
805fc799 1630 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1631 "R_PPC64_GOT_TLSGD16_HA", /* name */
b34976b6 1632 FALSE, /* partial_inplace */
5bd4f169
AM
1633 0, /* src_mask */
1634 0xffff, /* dst_mask */
b34976b6 1635 FALSE), /* pcrel_offset */
5bd4f169 1636
411e1bfb
AM
1637 /* Allocates two contiguous entries in the GOT to hold a tls_index structure,
1638 with values (sym+add)@dtpmod and zero, and computes the offset to the
1639 first entry relative to the TOC base (r2). */
1640 HOWTO (R_PPC64_GOT_TLSLD16,
5bd4f169
AM
1641 0, /* rightshift */
1642 1, /* size (0 = byte, 1 = short, 2 = long) */
1643 16, /* bitsize */
b34976b6 1644 FALSE, /* pc_relative */
5bd4f169 1645 0, /* bitpos */
411e1bfb
AM
1646 complain_overflow_signed, /* complain_on_overflow */
1647 ppc64_elf_unhandled_reloc, /* special_function */
1648 "R_PPC64_GOT_TLSLD16", /* name */
b34976b6 1649 FALSE, /* partial_inplace */
d006db6c 1650 0, /* src_mask */
411e1bfb 1651 0xffff, /* dst_mask */
b34976b6 1652 FALSE), /* pcrel_offset */
5bd4f169 1653
411e1bfb
AM
1654 /* Like GOT_TLSLD16, but no overflow. */
1655 HOWTO (R_PPC64_GOT_TLSLD16_LO,
5bd4f169
AM
1656 0, /* rightshift */
1657 1, /* size (0 = byte, 1 = short, 2 = long) */
1658 16, /* bitsize */
b34976b6 1659 FALSE, /* pc_relative */
5bd4f169 1660 0, /* bitpos */
411e1bfb
AM
1661 complain_overflow_dont, /* complain_on_overflow */
1662 ppc64_elf_unhandled_reloc, /* special_function */
1663 "R_PPC64_GOT_TLSLD16_LO", /* name */
b34976b6 1664 FALSE, /* partial_inplace */
d006db6c 1665 0, /* src_mask */
411e1bfb 1666 0xffff, /* dst_mask */
b34976b6 1667 FALSE), /* pcrel_offset */
5bd4f169 1668
411e1bfb
AM
1669 /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */
1670 HOWTO (R_PPC64_GOT_TLSLD16_HI,
1671 16, /* rightshift */
5bd4f169
AM
1672 1, /* size (0 = byte, 1 = short, 2 = long) */
1673 16, /* bitsize */
b34976b6 1674 FALSE, /* pc_relative */
5bd4f169 1675 0, /* bitpos */
411e1bfb 1676 complain_overflow_dont, /* complain_on_overflow */
805fc799 1677 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1678 "R_PPC64_GOT_TLSLD16_HI", /* name */
b34976b6 1679 FALSE, /* partial_inplace */
d006db6c 1680 0, /* src_mask */
411e1bfb 1681 0xffff, /* dst_mask */
b34976b6 1682 FALSE), /* pcrel_offset */
5bd4f169 1683
411e1bfb
AM
1684 /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */
1685 HOWTO (R_PPC64_GOT_TLSLD16_HA,
1686 16, /* rightshift */
5bd4f169
AM
1687 1, /* size (0 = byte, 1 = short, 2 = long) */
1688 16, /* bitsize */
b34976b6 1689 FALSE, /* pc_relative */
5bd4f169
AM
1690 0, /* bitpos */
1691 complain_overflow_dont, /* complain_on_overflow */
805fc799 1692 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1693 "R_PPC64_GOT_TLSLD16_HA", /* name */
b34976b6 1694 FALSE, /* partial_inplace */
d006db6c 1695 0, /* src_mask */
411e1bfb 1696 0xffff, /* dst_mask */
b34976b6 1697 FALSE), /* pcrel_offset */
5bd4f169 1698
411e1bfb
AM
1699 /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes
1700 the offset to the entry relative to the TOC base (r2). */
1701 HOWTO (R_PPC64_GOT_DTPREL16_DS,
5bd4f169
AM
1702 0, /* rightshift */
1703 1, /* size (0 = byte, 1 = short, 2 = long) */
1704 16, /* bitsize */
b34976b6 1705 FALSE, /* pc_relative */
5bd4f169 1706 0, /* bitpos */
411e1bfb 1707 complain_overflow_signed, /* complain_on_overflow */
805fc799 1708 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1709 "R_PPC64_GOT_DTPREL16_DS", /* name */
b34976b6 1710 FALSE, /* partial_inplace */
d006db6c 1711 0, /* src_mask */
5bd4f169 1712 0xfffc, /* dst_mask */
b34976b6 1713 FALSE), /* pcrel_offset */
5bd4f169 1714
411e1bfb
AM
1715 /* Like GOT_DTPREL16_DS, but no overflow. */
1716 HOWTO (R_PPC64_GOT_DTPREL16_LO_DS,
5bd4f169 1717 0, /* rightshift */
c061c2d8
AM
1718 1, /* size (0 = byte, 1 = short, 2 = long) */
1719 16, /* bitsize */
b34976b6 1720 FALSE, /* pc_relative */
5bd4f169 1721 0, /* bitpos */
411e1bfb
AM
1722 complain_overflow_dont, /* complain_on_overflow */
1723 ppc64_elf_unhandled_reloc, /* special_function */
1724 "R_PPC64_GOT_DTPREL16_LO_DS", /* name */
b34976b6 1725 FALSE, /* partial_inplace */
d006db6c 1726 0, /* src_mask */
c061c2d8 1727 0xfffc, /* dst_mask */
b34976b6 1728 FALSE), /* pcrel_offset */
5bd4f169 1729
411e1bfb
AM
1730 /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */
1731 HOWTO (R_PPC64_GOT_DTPREL16_HI,
1732 16, /* rightshift */
5bd4f169
AM
1733 1, /* size (0 = byte, 1 = short, 2 = long) */
1734 16, /* bitsize */
b34976b6 1735 FALSE, /* pc_relative */
5bd4f169
AM
1736 0, /* bitpos */
1737 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1738 ppc64_elf_unhandled_reloc, /* special_function */
1739 "R_PPC64_GOT_DTPREL16_HI", /* name */
b34976b6 1740 FALSE, /* partial_inplace */
d006db6c 1741 0, /* src_mask */
411e1bfb 1742 0xffff, /* dst_mask */
b34976b6 1743 FALSE), /* pcrel_offset */
5bd4f169 1744
411e1bfb
AM
1745 /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */
1746 HOWTO (R_PPC64_GOT_DTPREL16_HA,
1747 16, /* rightshift */
1748 1, /* size (0 = byte, 1 = short, 2 = long) */
1749 16, /* bitsize */
1750 FALSE, /* pc_relative */
1751 0, /* bitpos */
1752 complain_overflow_dont, /* complain_on_overflow */
1753 ppc64_elf_unhandled_reloc, /* special_function */
1754 "R_PPC64_GOT_DTPREL16_HA", /* name */
1755 FALSE, /* partial_inplace */
1756 0, /* src_mask */
1757 0xffff, /* dst_mask */
1758 FALSE), /* pcrel_offset */
1759
1760 /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the
1761 offset to the entry relative to the TOC base (r2). */
1762 HOWTO (R_PPC64_GOT_TPREL16_DS,
5bd4f169
AM
1763 0, /* rightshift */
1764 1, /* size (0 = byte, 1 = short, 2 = long) */
1765 16, /* bitsize */
b34976b6 1766 FALSE, /* pc_relative */
5bd4f169
AM
1767 0, /* bitpos */
1768 complain_overflow_signed, /* complain_on_overflow */
411e1bfb
AM
1769 ppc64_elf_unhandled_reloc, /* special_function */
1770 "R_PPC64_GOT_TPREL16_DS", /* name */
b34976b6 1771 FALSE, /* partial_inplace */
d006db6c 1772 0, /* src_mask */
ad8e1ba5 1773 0xfffc, /* dst_mask */
b34976b6 1774 FALSE), /* pcrel_offset */
5bd4f169 1775
411e1bfb
AM
1776 /* Like GOT_TPREL16_DS, but no overflow. */
1777 HOWTO (R_PPC64_GOT_TPREL16_LO_DS,
5bd4f169
AM
1778 0, /* rightshift */
1779 1, /* size (0 = byte, 1 = short, 2 = long) */
1780 16, /* bitsize */
b34976b6 1781 FALSE, /* pc_relative */
5bd4f169
AM
1782 0, /* bitpos */
1783 complain_overflow_dont, /* complain_on_overflow */
411e1bfb
AM
1784 ppc64_elf_unhandled_reloc, /* special_function */
1785 "R_PPC64_GOT_TPREL16_LO_DS", /* name */
b34976b6 1786 FALSE, /* partial_inplace */
d006db6c 1787 0, /* src_mask */
ad8e1ba5 1788 0xfffc, /* dst_mask */
b34976b6 1789 FALSE), /* pcrel_offset */
5bd4f169 1790
411e1bfb
AM
1791 /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */
1792 HOWTO (R_PPC64_GOT_TPREL16_HI,
1793 16, /* rightshift */
5bd4f169
AM
1794 1, /* size (0 = byte, 1 = short, 2 = long) */
1795 16, /* bitsize */
b34976b6 1796 FALSE, /* pc_relative */
5bd4f169 1797 0, /* bitpos */
411e1bfb 1798 complain_overflow_dont, /* complain_on_overflow */
805fc799 1799 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1800 "R_PPC64_GOT_TPREL16_HI", /* name */
b34976b6 1801 FALSE, /* partial_inplace */
d006db6c 1802 0, /* src_mask */
411e1bfb 1803 0xffff, /* dst_mask */
b34976b6 1804 FALSE), /* pcrel_offset */
5bd4f169 1805
411e1bfb
AM
1806 /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */
1807 HOWTO (R_PPC64_GOT_TPREL16_HA,
1808 16, /* rightshift */
5bd4f169
AM
1809 1, /* size (0 = byte, 1 = short, 2 = long) */
1810 16, /* bitsize */
b34976b6 1811 FALSE, /* pc_relative */
5bd4f169
AM
1812 0, /* bitpos */
1813 complain_overflow_dont, /* complain_on_overflow */
805fc799 1814 ppc64_elf_unhandled_reloc, /* special_function */
411e1bfb 1815 "R_PPC64_GOT_TPREL16_HA", /* name */
b34976b6 1816 FALSE, /* partial_inplace */
d006db6c 1817 0, /* src_mask */
411e1bfb 1818 0xffff, /* dst_mask */
b34976b6 1819 FALSE), /* pcrel_offset */
5bd4f169
AM
1820
1821 /* GNU extension to record C++ vtable hierarchy. */
1822 HOWTO (R_PPC64_GNU_VTINHERIT, /* type */
1823 0, /* rightshift */
1824 0, /* size (0 = byte, 1 = short, 2 = long) */
1825 0, /* bitsize */
b34976b6 1826 FALSE, /* pc_relative */
5bd4f169
AM
1827 0, /* bitpos */
1828 complain_overflow_dont, /* complain_on_overflow */
1829 NULL, /* special_function */
1830 "R_PPC64_GNU_VTINHERIT", /* name */
b34976b6 1831 FALSE, /* partial_inplace */
5bd4f169
AM
1832 0, /* src_mask */
1833 0, /* dst_mask */
b34976b6 1834 FALSE), /* pcrel_offset */
5bd4f169
AM
1835
1836 /* GNU extension to record C++ vtable member usage. */
1837 HOWTO (R_PPC64_GNU_VTENTRY, /* type */
1838 0, /* rightshift */
1839 0, /* size (0 = byte, 1 = short, 2 = long) */
1840 0, /* bitsize */
b34976b6 1841 FALSE, /* pc_relative */
5bd4f169
AM
1842 0, /* bitpos */
1843 complain_overflow_dont, /* complain_on_overflow */
1844 NULL, /* special_function */
1845 "R_PPC64_GNU_VTENTRY", /* name */
b34976b6 1846 FALSE, /* partial_inplace */
5bd4f169
AM
1847 0, /* src_mask */
1848 0, /* dst_mask */
b34976b6 1849 FALSE), /* pcrel_offset */
5bd4f169
AM
1850};
1851
1852\f
1853/* Initialize the ppc64_elf_howto_table, so that linear accesses can
1854 be done. */
1855
1856static void
4ce794b7 1857ppc_howto_init (void)
5bd4f169
AM
1858{
1859 unsigned int i, type;
1860
1861 for (i = 0;
1862 i < sizeof (ppc64_elf_howto_raw) / sizeof (ppc64_elf_howto_raw[0]);
1863 i++)
1864 {
1865 type = ppc64_elf_howto_raw[i].type;
1866 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
1867 / sizeof (ppc64_elf_howto_table[0])));
1868 ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i];
1869 }
1870}
1871
1872static reloc_howto_type *
4ce794b7
AM
1873ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1874 bfd_reloc_code_real_type code)
5bd4f169 1875{
411e1bfb 1876 enum elf_ppc64_reloc_type r = R_PPC64_NONE;
5bd4f169
AM
1877
1878 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
1879 /* Initialize howto table if needed. */
1880 ppc_howto_init ();
1881
4ce794b7 1882 switch (code)
5bd4f169
AM
1883 {
1884 default:
4ce794b7 1885 return NULL;
5bd4f169 1886
411e1bfb
AM
1887 case BFD_RELOC_NONE: r = R_PPC64_NONE;
1888 break;
1889 case BFD_RELOC_32: r = R_PPC64_ADDR32;
1890 break;
1891 case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24;
1892 break;
1893 case BFD_RELOC_16: r = R_PPC64_ADDR16;
1894 break;
1895 case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO;
1896 break;
1897 case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI;
1898 break;
1899 case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA;
5bd4f169 1900 break;
411e1bfb 1901 case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14;
5bd4f169 1902 break;
411e1bfb 1903 case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN;
5bd4f169 1904 break;
411e1bfb 1905 case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN;
5bd4f169 1906 break;
411e1bfb 1907 case BFD_RELOC_PPC_B26: r = R_PPC64_REL24;
5bd4f169 1908 break;
411e1bfb 1909 case BFD_RELOC_PPC_B16: r = R_PPC64_REL14;
5bd4f169 1910 break;
411e1bfb 1911 case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN;
5bd4f169 1912 break;
411e1bfb 1913 case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN;
5bd4f169 1914 break;
411e1bfb 1915 case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16;
5bd4f169 1916 break;
411e1bfb 1917 case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO;
5bd4f169 1918 break;
411e1bfb 1919 case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI;
5bd4f169 1920 break;
411e1bfb 1921 case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA;
5bd4f169 1922 break;
411e1bfb 1923 case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY;
5bd4f169 1924 break;
411e1bfb 1925 case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT;
5bd4f169 1926 break;
411e1bfb 1927 case BFD_RELOC_32_PCREL: r = R_PPC64_REL32;
5bd4f169 1928 break;
411e1bfb 1929 case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32;
5bd4f169 1930 break;
411e1bfb 1931 case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32;
5bd4f169 1932 break;
411e1bfb 1933 case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO;
5bd4f169 1934 break;
411e1bfb 1935 case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI;
5bd4f169 1936 break;
411e1bfb 1937 case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA;
5bd4f169 1938 break;
411e1bfb 1939 case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF;
5bd4f169 1940 break;
411e1bfb 1941 case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO;
5bd4f169 1942 break;
411e1bfb 1943 case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI;
5bd4f169 1944 break;
411e1bfb 1945 case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA;
5bd4f169 1946 break;
411e1bfb 1947 case BFD_RELOC_CTOR: r = R_PPC64_ADDR64;
5bd4f169 1948 break;
411e1bfb 1949 case BFD_RELOC_64: r = R_PPC64_ADDR64;
5bd4f169 1950 break;
411e1bfb 1951 case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER;
5bd4f169 1952 break;
411e1bfb 1953 case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA;
5bd4f169 1954 break;
411e1bfb 1955 case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST;
5bd4f169 1956 break;
411e1bfb 1957 case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA;
5bd4f169 1958 break;
411e1bfb 1959 case BFD_RELOC_64_PCREL: r = R_PPC64_REL64;
5bd4f169 1960 break;
411e1bfb 1961 case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64;
5bd4f169 1962 break;
411e1bfb 1963 case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64;
5bd4f169 1964 break;
411e1bfb 1965 case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16;
5bd4f169 1966 break;
411e1bfb 1967 case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO;
5bd4f169 1968 break;
411e1bfb 1969 case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI;
5bd4f169 1970 break;
411e1bfb 1971 case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA;
5bd4f169 1972 break;
411e1bfb 1973 case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC;
5bd4f169 1974 break;
411e1bfb 1975 case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16;
5bd4f169 1976 break;
411e1bfb 1977 case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO;
5bd4f169 1978 break;
411e1bfb 1979 case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI;
5bd4f169 1980 break;
411e1bfb 1981 case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA;
5bd4f169 1982 break;
411e1bfb 1983 case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS;
5bd4f169 1984 break;
411e1bfb 1985 case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS;
5bd4f169 1986 break;
411e1bfb 1987 case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS;
5bd4f169 1988 break;
411e1bfb 1989 case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS;
5bd4f169 1990 break;
411e1bfb 1991 case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS;
5bd4f169 1992 break;
411e1bfb 1993 case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS;
5bd4f169 1994 break;
411e1bfb 1995 case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS;
5bd4f169 1996 break;
411e1bfb 1997 case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS;
5bd4f169 1998 break;
411e1bfb 1999 case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS;
5bd4f169 2000 break;
411e1bfb 2001 case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS;
5bd4f169 2002 break;
411e1bfb 2003 case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS;
5bd4f169 2004 break;
411e1bfb 2005 case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS;
5bd4f169 2006 break;
411e1bfb 2007 case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64;
5bd4f169 2008 break;
411e1bfb 2009 case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16;
5bd4f169 2010 break;
411e1bfb 2011 case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO;
5bd4f169 2012 break;
411e1bfb 2013 case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI;
5bd4f169 2014 break;
411e1bfb 2015 case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA;
5bd4f169 2016 break;
411e1bfb 2017 case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64;
5bd4f169 2018 break;
411e1bfb
AM
2019 case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16;
2020 break;
2021 case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO;
2022 break;
2023 case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI;
2024 break;
2025 case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA;
2026 break;
2027 case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64;
2028 break;
2029 case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16;
2030 break;
2031 case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO;
2032 break;
2033 case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI;
2034 break;
2035 case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA;
2036 break;
2037 case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16;
2038 break;
2039 case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO;
2040 break;
2041 case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI;
2042 break;
2043 case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA;
2044 break;
2045 case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS;
2046 break;
2047 case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS;
2048 break;
2049 case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI;
2050 break;
2051 case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA;
2052 break;
2053 case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS;
2054 break;
2055 case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS;
2056 break;
2057 case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI;
2058 break;
2059 case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA;
2060 break;
2061 case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS;
2062 break;
2063 case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS;
2064 break;
2065 case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER;
2066 break;
2067 case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA;
2068 break;
2069 case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST;
2070 break;
2071 case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA;
2072 break;
2073 case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS;
2074 break;
2075 case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS;
2076 break;
2077 case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER;
2078 break;
2079 case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA;
2080 break;
2081 case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST;
2082 break;
2083 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA;
2084 break;
2085 case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT;
2086 break;
2087 case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY;
5bd4f169
AM
2088 break;
2089 }
2090
4ce794b7 2091 return ppc64_elf_howto_table[r];
5bd4f169
AM
2092};
2093
2094/* Set the howto pointer for a PowerPC ELF reloc. */
2095
2096static void
4ce794b7
AM
2097ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
2098 Elf_Internal_Rela *dst)
5bd4f169 2099{
65f38f15
AM
2100 unsigned int type;
2101
ef60b7ff 2102 /* Initialize howto table if needed. */
5bd4f169 2103 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
2104 ppc_howto_init ();
2105
65f38f15
AM
2106 type = ELF64_R_TYPE (dst->r_info);
2107 BFD_ASSERT (type < (sizeof (ppc64_elf_howto_table)
2108 / sizeof (ppc64_elf_howto_table[0])));
2109 cache_ptr->howto = ppc64_elf_howto_table[type];
5bd4f169
AM
2110}
2111
04c9666a 2112/* Handle the R_PPC64_ADDR16_HA and similar relocs. */
5bd4f169
AM
2113
2114static bfd_reloc_status_type
4ce794b7
AM
2115ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2116 void *data, asection *input_section,
2117 bfd *output_bfd, char **error_message)
5bd4f169 2118{
805fc799
AM
2119 /* If this is a relocatable link (output_bfd test tells us), just
2120 call the generic function. Any adjustment will be done at final
2121 link time. */
2122 if (output_bfd != NULL)
cedb70c5 2123 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2124 input_section, output_bfd, error_message);
2125
2126 /* Adjust the addend for sign extension of the low 16 bits.
2127 We won't actually be using the low 16 bits, so trashing them
2128 doesn't matter. */
2129 reloc_entry->addend += 0x8000;
2130 return bfd_reloc_continue;
2131}
5bd4f169 2132
805fc799 2133static bfd_reloc_status_type
4ce794b7
AM
2134ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2135 void *data, asection *input_section,
2136 bfd *output_bfd, char **error_message)
805fc799
AM
2137{
2138 long insn;
04c9666a 2139 enum elf_ppc64_reloc_type r_type;
805fc799
AM
2140 bfd_size_type octets;
2141 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 2142 bfd_boolean is_power4 = FALSE;
805fc799
AM
2143
2144 /* If this is a relocatable link (output_bfd test tells us), just
2145 call the generic function. Any adjustment will be done at final
2146 link time. */
5bd4f169 2147 if (output_bfd != NULL)
cedb70c5 2148 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2149 input_section, output_bfd, error_message);
2150
2151 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2152 insn = bfd_get_32 (abfd, (bfd_byte *) data + octets);
2153 insn &= ~(0x01 << 21);
4ce794b7 2154 r_type = reloc_entry->howto->type;
805fc799
AM
2155 if (r_type == R_PPC64_ADDR14_BRTAKEN
2156 || r_type == R_PPC64_REL14_BRTAKEN)
cedb70c5 2157 insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
805fc799
AM
2158
2159 if (is_power4)
5bd4f169 2160 {
805fc799
AM
2161 /* Set 'a' bit. This is 0b00010 in BO field for branch
2162 on CR(BI) insns (BO == 001at or 011at), and 0b01000
2163 for branch on CTR insns (BO == 1a00t or 1a01t). */
2164 if ((insn & (0x14 << 21)) == (0x04 << 21))
2165 insn |= 0x02 << 21;
2166 else if ((insn & (0x14 << 21)) == (0x10 << 21))
2167 insn |= 0x08 << 21;
2168 else
2169 return bfd_reloc_continue;
5bd4f169 2170 }
805fc799
AM
2171 else
2172 {
2173 bfd_vma target = 0;
2174 bfd_vma from;
5bd4f169 2175
805fc799
AM
2176 if (!bfd_is_com_section (symbol->section))
2177 target = symbol->value;
2178 target += symbol->section->output_section->vma;
2179 target += symbol->section->output_offset;
2180 target += reloc_entry->addend;
5bd4f169 2181
805fc799
AM
2182 from = (reloc_entry->address
2183 + input_section->output_offset
2184 + input_section->output_section->vma);
5bd4f169 2185
805fc799
AM
2186 /* Invert 'y' bit if not the default. */
2187 if ((bfd_signed_vma) (target - from) < 0)
2188 insn ^= 0x01 << 21;
2189 }
4ce794b7 2190 bfd_put_32 (abfd, insn, (bfd_byte *) data + octets);
805fc799
AM
2191 return bfd_reloc_continue;
2192}
5bd4f169 2193
805fc799 2194static bfd_reloc_status_type
4ce794b7
AM
2195ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2196 void *data, asection *input_section,
2197 bfd *output_bfd, char **error_message)
805fc799
AM
2198{
2199 /* If this is a relocatable link (output_bfd test tells us), just
2200 call the generic function. Any adjustment will be done at final
2201 link time. */
2202 if (output_bfd != NULL)
cedb70c5 2203 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799 2204 input_section, output_bfd, error_message);
5bd4f169 2205
805fc799
AM
2206 /* Subtract the symbol section base address. */
2207 reloc_entry->addend -= symbol->section->output_section->vma;
5bd4f169
AM
2208 return bfd_reloc_continue;
2209}
2210
805fc799 2211static bfd_reloc_status_type
4ce794b7
AM
2212ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2213 void *data, asection *input_section,
2214 bfd *output_bfd, char **error_message)
805fc799
AM
2215{
2216 /* If this is a relocatable link (output_bfd test tells us), just
2217 call the generic function. Any adjustment will be done at final
2218 link time. */
2219 if (output_bfd != NULL)
cedb70c5 2220 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2221 input_section, output_bfd, error_message);
2222
2223 /* Subtract the symbol section base address. */
2224 reloc_entry->addend -= symbol->section->output_section->vma;
2225
2226 /* Adjust the addend for sign extension of the low 16 bits. */
2227 reloc_entry->addend += 0x8000;
2228 return bfd_reloc_continue;
2229}
2230
2231static bfd_reloc_status_type
4ce794b7
AM
2232ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2233 void *data, asection *input_section,
2234 bfd *output_bfd, char **error_message)
805fc799
AM
2235{
2236 bfd_vma TOCstart;
2237
2238 /* If this is a relocatable link (output_bfd test tells us), just
2239 call the generic function. Any adjustment will be done at final
2240 link time. */
2241 if (output_bfd != NULL)
cedb70c5 2242 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2243 input_section, output_bfd, error_message);
2244
2245 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2246 if (TOCstart == 0)
2247 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2248
2249 /* Subtract the TOC base address. */
2250 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2251 return bfd_reloc_continue;
2252}
2253
2254static bfd_reloc_status_type
4ce794b7
AM
2255ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2256 void *data, asection *input_section,
2257 bfd *output_bfd, char **error_message)
805fc799
AM
2258{
2259 bfd_vma TOCstart;
2260
2261 /* If this is a relocatable link (output_bfd test tells us), just
2262 call the generic function. Any adjustment will be done at final
2263 link time. */
2264 if (output_bfd != NULL)
cedb70c5 2265 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2266 input_section, output_bfd, error_message);
2267
2268 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2269 if (TOCstart == 0)
2270 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2271
2272 /* Subtract the TOC base address. */
2273 reloc_entry->addend -= TOCstart + TOC_BASE_OFF;
2274
2275 /* Adjust the addend for sign extension of the low 16 bits. */
2276 reloc_entry->addend += 0x8000;
2277 return bfd_reloc_continue;
2278}
2279
2280static bfd_reloc_status_type
4ce794b7
AM
2281ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2282 void *data, asection *input_section,
2283 bfd *output_bfd, char **error_message)
805fc799
AM
2284{
2285 bfd_vma TOCstart;
2286 bfd_size_type octets;
2287
2288 /* If this is a relocatable link (output_bfd test tells us), just
2289 call the generic function. Any adjustment will be done at final
2290 link time. */
2291 if (output_bfd != NULL)
cedb70c5 2292 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2293 input_section, output_bfd, error_message);
2294
2295 TOCstart = _bfd_get_gp_value (input_section->output_section->owner);
2296 if (TOCstart == 0)
2297 TOCstart = ppc64_elf_toc (input_section->output_section->owner);
2298
2299 octets = reloc_entry->address * bfd_octets_per_byte (abfd);
2300 bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets);
2301 return bfd_reloc_ok;
2302}
2303
2304static bfd_reloc_status_type
4ce794b7
AM
2305ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2306 void *data, asection *input_section,
2307 bfd *output_bfd, char **error_message)
805fc799
AM
2308{
2309 /* If this is a relocatable link (output_bfd test tells us), just
2310 call the generic function. Any adjustment will be done at final
2311 link time. */
2312 if (output_bfd != NULL)
cedb70c5 2313 return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data,
805fc799
AM
2314 input_section, output_bfd, error_message);
2315
2316 if (error_message != NULL)
2317 {
2318 static char buf[60];
2319 sprintf (buf, "generic linker can't handle %s",
2320 reloc_entry->howto->name);
2321 *error_message = buf;
2322 }
2323 return bfd_reloc_dangerous;
2324}
2325
e717da7e
AM
2326struct ppc64_elf_obj_tdata
2327{
2328 struct elf_obj_tdata elf;
2329
2330 /* Shortcuts to dynamic linker sections. */
2331 asection *got;
2332 asection *relgot;
2333
2334 /* TLS local dynamic got entry handling. Suppose for multiple GOT
2335 sections means we potentially need one of these for each input bfd. */
2336 union {
2337 bfd_signed_vma refcount;
2338 bfd_vma offset;
2339 } tlsld_got;
2340};
2341
2342#define ppc64_elf_tdata(bfd) \
2343 ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any)
2344
2345#define ppc64_tlsld_got(bfd) \
2346 (&ppc64_elf_tdata (bfd)->tlsld_got)
2347
2348/* Override the generic function because we store some extras. */
2349
2350static bfd_boolean
2351ppc64_elf_mkobject (bfd *abfd)
2352{
2353 bfd_size_type amt = sizeof (struct ppc64_elf_obj_tdata);
2354 abfd->tdata.any = bfd_zalloc (abfd, amt);
2355 if (abfd->tdata.any == NULL)
2356 return FALSE;
2357 return TRUE;
2358}
2359
feee612b
AM
2360/* Fix bad default arch selected for a 64 bit input bfd when the
2361 default is 32 bit. */
2362
b34976b6 2363static bfd_boolean
4ce794b7 2364ppc64_elf_object_p (bfd *abfd)
feee612b
AM
2365{
2366 if (abfd->arch_info->the_default && abfd->arch_info->bits_per_word == 32)
2367 {
2368 Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd);
2369
2370 if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64)
2371 {
2372 /* Relies on arch after 32 bit default being 64 bit default. */
2373 abfd->arch_info = abfd->arch_info->next;
2374 BFD_ASSERT (abfd->arch_info->bits_per_word == 64);
2375 }
2376 }
b34976b6 2377 return TRUE;
feee612b
AM
2378}
2379
d37c89e5
AM
2380/* Support for core dump NOTE sections. */
2381
2382static bfd_boolean
2383ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
2384{
eea6121a 2385 size_t offset, size;
d37c89e5
AM
2386
2387 if (note->descsz != 504)
2388 return FALSE;
2389
2390 /* pr_cursig */
2391 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
2392
2393 /* pr_pid */
2394 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 32);
2395
2396 /* pr_reg */
2397 offset = 112;
eea6121a 2398 size = 384;
d37c89e5
AM
2399
2400 /* Make a ".reg/999" section. */
2401 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
eea6121a 2402 size, note->descpos + offset);
d37c89e5
AM
2403}
2404
2405static bfd_boolean
2406ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
2407{
2408 if (note->descsz != 136)
2409 return FALSE;
2410
2411 elf_tdata (abfd)->core_program
2412 = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16);
2413 elf_tdata (abfd)->core_command
2414 = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80);
2415
2416 return TRUE;
2417}
2418
5bd4f169
AM
2419/* Merge backend specific data from an object file to the output
2420 object file when linking. */
2f6d9989 2421
b34976b6 2422static bfd_boolean
4ce794b7 2423ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
5bd4f169 2424{
5bd4f169
AM
2425 /* Check if we have the same endianess. */
2426 if (ibfd->xvec->byteorder != obfd->xvec->byteorder
87e226ce 2427 && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
5bd4f169
AM
2428 && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
2429 {
2430 const char *msg;
2431
2432 if (bfd_big_endian (ibfd))
4ce794b7
AM
2433 msg = _("%s: compiled for a big endian system "
2434 "and target is little endian");
5bd4f169 2435 else
4ce794b7
AM
2436 msg = _("%s: compiled for a little endian system "
2437 "and target is big endian");
5bd4f169 2438
8f615d07 2439 (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
5bd4f169
AM
2440
2441 bfd_set_error (bfd_error_wrong_format);
b34976b6 2442 return FALSE;
5bd4f169
AM
2443 }
2444
b34976b6 2445 return TRUE;
5bd4f169 2446}
f0abc2a1 2447
5d35169e
AM
2448/* Add extra PPC sections. */
2449
2450static struct bfd_elf_special_section const ppc64_elf_special_sections[]=
2451{
7dcb9820
AM
2452 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2453 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2454 { ".plt", 4, 0, SHT_NOBITS, 0 },
2455 { ".toc", 4, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2456 { ".toc1", 5, 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
2457 { ".tocbss", 7, 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
2458 { NULL, 0, 0, 0, 0 }
5d35169e
AM
2459};
2460
f0abc2a1
AM
2461struct _ppc64_elf_section_data
2462{
2463 struct bfd_elf_section_data elf;
411e1bfb
AM
2464
2465 /* An array with one entry for each opd function descriptor. */
f0abc2a1
AM
2466 union
2467 {
411e1bfb 2468 /* Points to the function code section for local opd entries. */
f0abc2a1 2469 asection **func_sec;
411e1bfb 2470 /* After editing .opd, adjust references to opd local syms. */
f0abc2a1
AM
2471 long *adjust;
2472 } opd;
411e1bfb
AM
2473
2474 /* An array for toc sections, indexed by offset/8.
2475 Specifies the relocation symbol index used at a given toc offset. */
2476 unsigned *t_symndx;
f0abc2a1
AM
2477};
2478
2479#define ppc64_elf_section_data(sec) \
411e1bfb 2480 ((struct _ppc64_elf_section_data *) elf_section_data (sec))
f0abc2a1
AM
2481
2482static bfd_boolean
4ce794b7 2483ppc64_elf_new_section_hook (bfd *abfd, asection *sec)
f0abc2a1
AM
2484{
2485 struct _ppc64_elf_section_data *sdata;
2486 bfd_size_type amt = sizeof (*sdata);
2487
4ce794b7 2488 sdata = bfd_zalloc (abfd, amt);
f0abc2a1
AM
2489 if (sdata == NULL)
2490 return FALSE;
4ce794b7 2491 sec->used_by_bfd = sdata;
f0abc2a1
AM
2492
2493 return _bfd_elf_new_section_hook (abfd, sec);
2494}
5bd4f169 2495\f
65f38f15
AM
2496/* The following functions are specific to the ELF linker, while
2497 functions above are used generally. Those named ppc64_elf_* are
2498 called by the main ELF linker code. They appear in this file more
2499 or less in the order in which they are called. eg.
2500 ppc64_elf_check_relocs is called early in the link process,
2501 ppc64_elf_finish_dynamic_sections is one of the last functions
e86ce104
AM
2502 called.
2503
2504 PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that
2505 functions have both a function code symbol and a function descriptor
2506 symbol. A call to foo in a relocatable object file looks like:
2507
2508 . .text
2509 . x:
2510 . bl .foo
2511 . nop
2512
2513 The function definition in another object file might be:
2514
2515 . .section .opd
2516 . foo: .quad .foo
2517 . .quad .TOC.@tocbase
2518 . .quad 0
2519 .
2520 . .text
2521 . .foo: blr
2522
2523 When the linker resolves the call during a static link, the branch
2524 unsurprisingly just goes to .foo and the .opd information is unused.
2525 If the function definition is in a shared library, things are a little
2526 different: The call goes via a plt call stub, the opd information gets
2527 copied to the plt, and the linker patches the nop.
2528
2529 . x:
2530 . bl .foo_stub
2531 . ld 2,40(1)
2532 .
2533 .
2534 . .foo_stub:
2535 . addis 12,2,Lfoo@toc@ha # in practice, the call stub
411e1bfb 2536 . addi 12,12,Lfoo@toc@l # is slightly optimized, but
e86ce104
AM
2537 . std 2,40(1) # this is the general idea
2538 . ld 11,0(12)
2539 . ld 2,8(12)
2540 . mtctr 11
2541 . ld 11,16(12)
2542 . bctr
2543 .
2544 . .section .plt
2545 . Lfoo: reloc (R_PPC64_JMP_SLOT, foo)
2546
2547 The "reloc ()" notation is supposed to indicate that the linker emits
2548 an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd
2549 copying.
2550
2551 What are the difficulties here? Well, firstly, the relocations
2552 examined by the linker in check_relocs are against the function code
2553 sym .foo, while the dynamic relocation in the plt is emitted against
2554 the function descriptor symbol, foo. Somewhere along the line, we need
2555 to carefully copy dynamic link information from one symbol to the other.
2556 Secondly, the generic part of the elf linker will make .foo a dynamic
2557 symbol as is normal for most other backends. We need foo dynamic
2558 instead, at least for an application final link. However, when
2559 creating a shared library containing foo, we need to have both symbols
2560 dynamic so that references to .foo are satisfied during the early
2561 stages of linking. Otherwise the linker might decide to pull in a
41bd81ab 2562 definition from some other object, eg. a static library. */
65f38f15
AM
2563
2564/* The linker needs to keep track of the number of relocs that it
2565 decides to copy as dynamic relocs in check_relocs for each symbol.
2566 This is so that it can later discard them if they are found to be
2567 unnecessary. We store the information in a field extending the
2568 regular ELF linker hash table. */
2569
2570struct ppc_dyn_relocs
2571{
2572 struct ppc_dyn_relocs *next;
2573
2574 /* The input section of the reloc. */
2575 asection *sec;
2576
2577 /* Total number of relocs copied for the input section. */
2578 bfd_size_type count;
2579
2580 /* Number of pc-relative relocs copied for the input section. */
2581 bfd_size_type pc_count;
2582};
2583
411e1bfb
AM
2584/* Track GOT entries needed for a given symbol. We might need more
2585 than one got entry per symbol. */
2586struct got_entry
2587{
2588 struct got_entry *next;
2589
e7b938ca 2590 /* The symbol addend that we'll be placing in the GOT. */
411e1bfb
AM
2591 bfd_vma addend;
2592
e717da7e
AM
2593 /* Unlike other ELF targets, we use separate GOT entries for the same
2594 symbol referenced from different input files. This is to support
2595 automatic multiple TOC/GOT sections, where the TOC base can vary
2596 from one input file to another.
2597
2598 Point to the BFD owning this GOT entry. */
2599 bfd *owner;
2600
2601 /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD,
2602 TLS_TPREL or TLS_DTPREL for tls entries. */
2603 char tls_type;
2604
e7b938ca 2605 /* Reference count until size_dynamic_sections, GOT offset thereafter. */
411e1bfb
AM
2606 union
2607 {
2608 bfd_signed_vma refcount;
2609 bfd_vma offset;
2610 } got;
411e1bfb
AM
2611};
2612
2613/* The same for PLT. */
2614struct plt_entry
2615{
2616 struct plt_entry *next;
2617
2618 bfd_vma addend;
2619
2620 union
2621 {
2622 bfd_signed_vma refcount;
2623 bfd_vma offset;
2624 } plt;
2625};
2626
65f38f15 2627/* Of those relocs that might be copied as dynamic relocs, this macro
58ac9f71
AM
2628 selects those that must be copied when linking a shared library,
2629 even when the symbol is local. */
65f38f15 2630
411e1bfb 2631#define MUST_BE_DYN_RELOC(RTYPE) \
805fc799
AM
2632 ((RTYPE) != R_PPC64_REL32 \
2633 && (RTYPE) != R_PPC64_REL64 \
04c9666a 2634 && (RTYPE) != R_PPC64_REL30)
65f38f15 2635
f4656909
AM
2636/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
2637 copying dynamic variables from a shared lib into an app's dynbss
2638 section, and instead use a dynamic relocation to point into the
5d35169e
AM
2639 shared lib. With code that gcc generates, it's vital that this be
2640 enabled; In the PowerPC64 ABI, the address of a function is actually
2641 the address of a function descriptor, which resides in the .opd
2642 section. gcc uses the descriptor directly rather than going via the
2643 GOT as some other ABI's do, which means that initialized function
2644 pointers must reference the descriptor. Thus, a function pointer
2645 initialized to the address of a function in a shared library will
2646 either require a copy reloc, or a dynamic reloc. Using a copy reloc
4cc11e76 2647 redefines the function descriptor symbol to point to the copy. This
5d35169e
AM
2648 presents a problem as a plt entry for that function is also
2649 initialized from the function descriptor symbol and the copy reloc
2650 may not be initialized first. */
a23b6845 2651#define ELIMINATE_COPY_RELOCS 1
f4656909 2652
721956f4
AM
2653/* Section name for stubs is the associated section name plus this
2654 string. */
2655#define STUB_SUFFIX ".stub"
2656
2657/* Linker stubs.
2658 ppc_stub_long_branch:
2659 Used when a 14 bit branch (or even a 24 bit branch) can't reach its
2660 destination, but a 24 bit branch in a stub section will reach.
2661 . b dest
2662
2663 ppc_stub_plt_branch:
2664 Similar to the above, but a 24 bit branch in the stub section won't
2665 reach its destination.
87e226ce
AM
2666 . addis %r12,%r2,xxx@toc@ha
2667 . ld %r11,xxx@toc@l(%r12)
721956f4
AM
2668 . mtctr %r11
2669 . bctr
2670
2671 ppc_stub_plt_call:
2c66dc6c
AM
2672 Used to call a function in a shared library. If it so happens that
2673 the plt entry referenced crosses a 64k boundary, then an extra
2674 "addis %r12,%r12,1" will be inserted before the load at xxx+8 or
2675 xxx+16 as appropriate.
87e226ce 2676 . addis %r12,%r2,xxx@toc@ha
721956f4 2677 . std %r2,40(%r1)
87e226ce
AM
2678 . ld %r11,xxx+0@toc@l(%r12)
2679 . ld %r2,xxx+8@toc@l(%r12)
721956f4 2680 . mtctr %r11
87e226ce 2681 . ld %r11,xxx+16@toc@l(%r12)
721956f4 2682 . bctr
ad8e1ba5
AM
2683
2684 ppc_stub_long_branch and ppc_stub_plt_branch may also have additional
2685 code to adjust the value and save r2 to support multiple toc sections.
2686 A ppc_stub_long_branch with an r2 offset looks like:
2687 . std %r2,40(%r1)
2688 . addis %r2,%r2,off@ha
2689 . addi %r2,%r2,off@l
2690 . b dest
2691
2692 A ppc_stub_plt_branch with an r2 offset looks like:
2693 . std %r2,40(%r1)
2694 . addis %r12,%r2,xxx@toc@ha
2695 . ld %r11,xxx@toc@l(%r12)
2696 . addis %r2,%r2,off@ha
2697 . addi %r2,%r2,off@l
2698 . mtctr %r11
2699 . bctr
721956f4
AM
2700*/
2701
2702enum ppc_stub_type {
2703 ppc_stub_none,
2704 ppc_stub_long_branch,
ad8e1ba5 2705 ppc_stub_long_branch_r2off,
721956f4 2706 ppc_stub_plt_branch,
ad8e1ba5 2707 ppc_stub_plt_branch_r2off,
721956f4
AM
2708 ppc_stub_plt_call
2709};
2710
2711struct ppc_stub_hash_entry {
2712
2713 /* Base hash table entry structure. */
2714 struct bfd_hash_entry root;
2715
ad8e1ba5
AM
2716 enum ppc_stub_type stub_type;
2717
721956f4
AM
2718 /* The stub section. */
2719 asection *stub_sec;
2720
2721 /* Offset within stub_sec of the beginning of this stub. */
2722 bfd_vma stub_offset;
2723
2724 /* Given the symbol's value and its section we can determine its final
2725 value when building the stubs (so the stub knows where to jump. */
2726 bfd_vma target_value;
2727 asection *target_section;
2728
721956f4
AM
2729 /* The symbol table entry, if any, that this was derived from. */
2730 struct ppc_link_hash_entry *h;
2731
411e1bfb
AM
2732 /* And the reloc addend that this was derived from. */
2733 bfd_vma addend;
2734
721956f4
AM
2735 /* Where this stub is being called from, or, in the case of combined
2736 stub sections, the first input section in the group. */
2737 asection *id_sec;
2738};
2739
2740struct ppc_branch_hash_entry {
2741
2742 /* Base hash table entry structure. */
2743 struct bfd_hash_entry root;
2744
2745 /* Offset within .branch_lt. */
2746 unsigned int offset;
2747
2748 /* Generation marker. */
2749 unsigned int iter;
2750};
65f38f15
AM
2751
2752struct ppc_link_hash_entry
2753{
2754 struct elf_link_hash_entry elf;
2755
721956f4
AM
2756 /* A pointer to the most recently used stub hash entry against this
2757 symbol. */
2758 struct ppc_stub_hash_entry *stub_cache;
2759
65f38f15
AM
2760 /* Track dynamic relocs copied for this symbol. */
2761 struct ppc_dyn_relocs *dyn_relocs;
e86ce104 2762
721956f4
AM
2763 /* Link between function code and descriptor symbols. */
2764 struct elf_link_hash_entry *oh;
2765
e86ce104
AM
2766 /* Flag function code and descriptor symbols. */
2767 unsigned int is_func:1;
2768 unsigned int is_func_descriptor:1;
1e2f5b6e 2769 unsigned int is_entry:1;
411e1bfb 2770
754021d0
AM
2771 /* Whether global opd sym has been adjusted or not. */
2772 unsigned int adjust_done:1;
2773
411e1bfb 2774 /* Contexts in which symbol is used in the GOT (or TOC).
e7b938ca
AM
2775 TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the
2776 corresponding relocs are encountered during check_relocs.
2777 tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to
2778 indicate the corresponding GOT entry type is not needed.
2779 tls_optimize may also set TLS_TPRELGD when a GD reloc turns into
2780 a TPREL one. We use a separate flag rather than setting TPREL
2781 just for convenience in distinguishing the two cases. */
2782#define TLS_GD 1 /* GD reloc. */
2783#define TLS_LD 2 /* LD reloc. */
2784#define TLS_TPREL 4 /* TPREL reloc, => IE. */
2785#define TLS_DTPREL 8 /* DTPREL reloc, => LD. */
2786#define TLS_TLS 16 /* Any TLS reloc. */
2787#define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */
2788#define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */
2789 char tls_mask;
65f38f15
AM
2790};
2791
2792/* ppc64 ELF linker hash table. */
2793
2794struct ppc_link_hash_table
2795{
2796 struct elf_link_hash_table elf;
2797
721956f4
AM
2798 /* The stub hash table. */
2799 struct bfd_hash_table stub_hash_table;
2800
2801 /* Another hash table for plt_branch stubs. */
2802 struct bfd_hash_table branch_hash_table;
2803
2804 /* Linker stub bfd. */
2805 bfd *stub_bfd;
2806
2807 /* Linker call-backs. */
4ce794b7
AM
2808 asection * (*add_stub_section) (const char *, asection *);
2809 void (*layout_sections_again) (void);
721956f4
AM
2810
2811 /* Array to keep track of which stub sections have been created, and
2812 information on stub grouping. */
2813 struct map_stub {
2814 /* This is the section to which stubs in the group will be attached. */
2815 asection *link_sec;
2816 /* The stub section. */
2817 asection *stub_sec;
ad8e1ba5
AM
2818 /* Along with elf_gp, specifies the TOC pointer used in this group. */
2819 bfd_vma toc_off;
721956f4
AM
2820 } *stub_group;
2821
ad8e1ba5
AM
2822 /* Support for multiple toc sections. */
2823 unsigned int no_multi_toc;
2824 unsigned int multi_toc_needed;
2825
2826 /* Temp used when calculating TOC pointers. */
2827 bfd_vma toc_curr;
2828
8f3bab57
AM
2829 /* Highest input section id. */
2830 int top_id;
2831
734b6cf9
AM
2832 /* Highest output section index. */
2833 int top_index;
2834
2835 /* List of input sections for each output section. */
2836 asection **input_list;
721956f4 2837
65f38f15 2838 /* Short-cuts to get to dynamic linker sections. */
4ce794b7 2839 asection *got;
4ce794b7
AM
2840 asection *plt;
2841 asection *relplt;
2842 asection *dynbss;
2843 asection *relbss;
2844 asection *glink;
82bd7b59 2845 asection *sfpr;
4ce794b7
AM
2846 asection *brlt;
2847 asection *relbrlt;
ec338859 2848
411e1bfb
AM
2849 /* Shortcut to .__tls_get_addr. */
2850 struct elf_link_hash_entry *tls_get_addr;
2851
9b5ecbd0
AM
2852 /* Statistics. */
2853 unsigned long stub_count[ppc_stub_plt_call];
2854
ad8e1ba5
AM
2855 /* Set if we should emit symbols for stubs. */
2856 unsigned int emit_stub_syms;
2857
5d1634d7 2858 /* Set on error. */
721956f4
AM
2859 unsigned int stub_error;
2860
2861 /* Flag set when small branches are detected. Used to
2862 select suitable defaults for the stub group size. */
2863 unsigned int has_14bit_branch;
2864
805fc799
AM
2865 /* Set if we detect a reference undefined weak symbol. */
2866 unsigned int have_undefweak;
2867
721956f4
AM
2868 /* Incremented every time we size stubs. */
2869 unsigned int stub_iteration;
5d1634d7 2870
ec338859
AM
2871 /* Small local sym to section mapping cache. */
2872 struct sym_sec_cache sym_sec;
65f38f15
AM
2873};
2874
2875/* Get the ppc64 ELF linker hash table from a link_info structure. */
2876
2877#define ppc_hash_table(p) \
2878 ((struct ppc_link_hash_table *) ((p)->hash))
2879
721956f4
AM
2880#define ppc_stub_hash_lookup(table, string, create, copy) \
2881 ((struct ppc_stub_hash_entry *) \
2882 bfd_hash_lookup ((table), (string), (create), (copy)))
2883
2884#define ppc_branch_hash_lookup(table, string, create, copy) \
2885 ((struct ppc_branch_hash_entry *) \
2886 bfd_hash_lookup ((table), (string), (create), (copy)))
2887
2888/* Create an entry in the stub hash table. */
2889
2890static struct bfd_hash_entry *
4ce794b7
AM
2891stub_hash_newfunc (struct bfd_hash_entry *entry,
2892 struct bfd_hash_table *table,
2893 const char *string)
721956f4
AM
2894{
2895 /* Allocate the structure if it has not already been allocated by a
2896 subclass. */
2897 if (entry == NULL)
2898 {
2899 entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry));
2900 if (entry == NULL)
2901 return entry;
2902 }
2903
2904 /* Call the allocation method of the superclass. */
2905 entry = bfd_hash_newfunc (entry, table, string);
2906 if (entry != NULL)
2907 {
2908 struct ppc_stub_hash_entry *eh;
2909
2910 /* Initialize the local fields. */
2911 eh = (struct ppc_stub_hash_entry *) entry;
ad8e1ba5 2912 eh->stub_type = ppc_stub_none;
721956f4
AM
2913 eh->stub_sec = NULL;
2914 eh->stub_offset = 0;
2915 eh->target_value = 0;
2916 eh->target_section = NULL;
721956f4
AM
2917 eh->h = NULL;
2918 eh->id_sec = NULL;
2919 }
2920
2921 return entry;
2922}
2923
2924/* Create an entry in the branch hash table. */
2925
2926static struct bfd_hash_entry *
4ce794b7
AM
2927branch_hash_newfunc (struct bfd_hash_entry *entry,
2928 struct bfd_hash_table *table,
2929 const char *string)
721956f4
AM
2930{
2931 /* Allocate the structure if it has not already been allocated by a
2932 subclass. */
2933 if (entry == NULL)
2934 {
2935 entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry));
2936 if (entry == NULL)
2937 return entry;
2938 }
2939
2940 /* Call the allocation method of the superclass. */
2941 entry = bfd_hash_newfunc (entry, table, string);
2942 if (entry != NULL)
2943 {
2944 struct ppc_branch_hash_entry *eh;
2945
2946 /* Initialize the local fields. */
2947 eh = (struct ppc_branch_hash_entry *) entry;
2948 eh->offset = 0;
2949 eh->iter = 0;
2950 }
2951
2952 return entry;
2953}
2954
65f38f15
AM
2955/* Create an entry in a ppc64 ELF linker hash table. */
2956
2957static struct bfd_hash_entry *
4ce794b7
AM
2958link_hash_newfunc (struct bfd_hash_entry *entry,
2959 struct bfd_hash_table *table,
2960 const char *string)
65f38f15
AM
2961{
2962 /* Allocate the structure if it has not already been allocated by a
2963 subclass. */
2964 if (entry == NULL)
2965 {
2966 entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry));
2967 if (entry == NULL)
2968 return entry;
2969 }
2970
2971 /* Call the allocation method of the superclass. */
2972 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
2973 if (entry != NULL)
2974 {
2975 struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry;
2976
721956f4 2977 eh->stub_cache = NULL;
65f38f15 2978 eh->dyn_relocs = NULL;
721956f4 2979 eh->oh = NULL;
e86ce104
AM
2980 eh->is_func = 0;
2981 eh->is_func_descriptor = 0;
1e2f5b6e 2982 eh->is_entry = 0;
754021d0 2983 eh->adjust_done = 0;
e7b938ca 2984 eh->tls_mask = 0;
65f38f15
AM
2985 }
2986
2987 return entry;
2988}
2989
2990/* Create a ppc64 ELF linker hash table. */
2991
2992static struct bfd_link_hash_table *
4ce794b7 2993ppc64_elf_link_hash_table_create (bfd *abfd)
65f38f15
AM
2994{
2995 struct ppc_link_hash_table *htab;
2996 bfd_size_type amt = sizeof (struct ppc_link_hash_table);
2997
4ce794b7 2998 htab = bfd_zmalloc (amt);
65f38f15
AM
2999 if (htab == NULL)
3000 return NULL;
3001
3002 if (! _bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc))
3003 {
e2d34d7d 3004 free (htab);
65f38f15
AM
3005 return NULL;
3006 }
3007
721956f4
AM
3008 /* Init the stub hash table too. */
3009 if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc))
3010 return NULL;
3011
3012 /* And the branch hash table. */
3013 if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc))
3014 return NULL;
3015
3254fd24
AM
3016 /* Initializing two fields of the union is just cosmetic. We really
3017 only care about glist, but when compiled on a 32-bit host the
3018 bfd_vma fields are larger. Setting the bfd_vma to zero makes
3019 debugger inspection of these fields look nicer. */
3020 htab->elf.init_refcount.refcount = 0;
3021 htab->elf.init_refcount.glist = NULL;
3022 htab->elf.init_offset.offset = 0;
3023 htab->elf.init_offset.glist = NULL;
3024
65f38f15
AM
3025 return &htab->elf.root;
3026}
3027
721956f4
AM
3028/* Free the derived linker hash table. */
3029
3030static void
4ce794b7 3031ppc64_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
721956f4
AM
3032{
3033 struct ppc_link_hash_table *ret = (struct ppc_link_hash_table *) hash;
3034
3035 bfd_hash_table_free (&ret->stub_hash_table);
3036 bfd_hash_table_free (&ret->branch_hash_table);
3037 _bfd_generic_link_hash_table_free (hash);
3038}
3039
e717da7e
AM
3040/* Satisfy the ELF linker by filling in some fields in our fake bfd. */
3041
3042void
3043ppc64_elf_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
3044{
3045 struct ppc_link_hash_table *htab;
3046
3047 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS64;
3048
3049/* Always hook our dynamic sections into the first bfd, which is the
3050 linker created stub bfd. This ensures that the GOT header is at
3051 the start of the output TOC section. */
3052 htab = ppc_hash_table (info);
3053 htab->stub_bfd = abfd;
3054 htab->elf.dynobj = abfd;
3055}
3056
721956f4
AM
3057/* Build a name for an entry in the stub hash table. */
3058
3059static char *
4ce794b7
AM
3060ppc_stub_name (const asection *input_section,
3061 const asection *sym_sec,
3062 const struct ppc_link_hash_entry *h,
3063 const Elf_Internal_Rela *rel)
721956f4
AM
3064{
3065 char *stub_name;
3066 bfd_size_type len;
3067
3068 /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31
3069 offsets from a sym as a branch target? In fact, we could
3070 probably assume the addend is always zero. */
3071 BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend);
3072
3073 if (h)
3074 {
3075 len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1;
3076 stub_name = bfd_malloc (len);
3077 if (stub_name != NULL)
3078 {
97b639ba 3079 sprintf (stub_name, "%08x.%s+%x",
721956f4
AM
3080 input_section->id & 0xffffffff,
3081 h->elf.root.root.string,
3082 (int) rel->r_addend & 0xffffffff);
3083 }
3084 }
3085 else
3086 {
ad8e1ba5 3087 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
721956f4
AM
3088 stub_name = bfd_malloc (len);
3089 if (stub_name != NULL)
3090 {
97b639ba 3091 sprintf (stub_name, "%08x.%x:%x+%x",
721956f4
AM
3092 input_section->id & 0xffffffff,
3093 sym_sec->id & 0xffffffff,
3094 (int) ELF64_R_SYM (rel->r_info) & 0xffffffff,
3095 (int) rel->r_addend & 0xffffffff);
3096 }
3097 }
3098 return stub_name;
3099}
3100
3101/* Look up an entry in the stub hash. Stub entries are cached because
3102 creating the stub name takes a bit of time. */
3103
3104static struct ppc_stub_hash_entry *
4ce794b7
AM
3105ppc_get_stub_entry (const asection *input_section,
3106 const asection *sym_sec,
3107 struct elf_link_hash_entry *hash,
3108 const Elf_Internal_Rela *rel,
3109 struct ppc_link_hash_table *htab)
721956f4
AM
3110{
3111 struct ppc_stub_hash_entry *stub_entry;
3112 struct ppc_link_hash_entry *h = (struct ppc_link_hash_entry *) hash;
3113 const asection *id_sec;
3114
3115 /* If this input section is part of a group of sections sharing one
3116 stub section, then use the id of the first section in the group.
3117 Stub names need to include a section id, as there may well be
3118 more than one stub used to reach say, printf, and we need to
3119 distinguish between them. */
3120 id_sec = htab->stub_group[input_section->id].link_sec;
3121
3122 if (h != NULL && h->stub_cache != NULL
3123 && h->stub_cache->h == h
3124 && h->stub_cache->id_sec == id_sec)
3125 {
3126 stub_entry = h->stub_cache;
3127 }
3128 else
3129 {
3130 char *stub_name;
3131
3132 stub_name = ppc_stub_name (id_sec, sym_sec, h, rel);
3133 if (stub_name == NULL)
3134 return NULL;
3135
3136 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 3137 stub_name, FALSE, FALSE);
721956f4
AM
3138 if (h != NULL)
3139 h->stub_cache = stub_entry;
3140
3141 free (stub_name);
3142 }
3143
3144 return stub_entry;
3145}
3146
3147/* Add a new stub entry to the stub hash. Not all fields of the new
3148 stub entry are initialised. */
3149
3150static struct ppc_stub_hash_entry *
4ce794b7
AM
3151ppc_add_stub (const char *stub_name,
3152 asection *section,
3153 struct ppc_link_hash_table *htab)
721956f4
AM
3154{
3155 asection *link_sec;
3156 asection *stub_sec;
3157 struct ppc_stub_hash_entry *stub_entry;
3158
3159 link_sec = htab->stub_group[section->id].link_sec;
3160 stub_sec = htab->stub_group[section->id].stub_sec;
3161 if (stub_sec == NULL)
3162 {
3163 stub_sec = htab->stub_group[link_sec->id].stub_sec;
3164 if (stub_sec == NULL)
3165 {
d4c88bbb 3166 size_t namelen;
721956f4
AM
3167 bfd_size_type len;
3168 char *s_name;
3169
d4c88bbb
AM
3170 namelen = strlen (link_sec->name);
3171 len = namelen + sizeof (STUB_SUFFIX);
721956f4
AM
3172 s_name = bfd_alloc (htab->stub_bfd, len);
3173 if (s_name == NULL)
3174 return NULL;
3175
d4c88bbb
AM
3176 memcpy (s_name, link_sec->name, namelen);
3177 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
721956f4
AM
3178 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
3179 if (stub_sec == NULL)
3180 return NULL;
3181 htab->stub_group[link_sec->id].stub_sec = stub_sec;
3182 }
3183 htab->stub_group[section->id].stub_sec = stub_sec;
3184 }
3185
3186 /* Enter this entry into the linker stub hash table. */
3187 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name,
b34976b6 3188 TRUE, FALSE);
721956f4
AM
3189 if (stub_entry == NULL)
3190 {
3191 (*_bfd_error_handler) (_("%s: cannot create stub entry %s"),
3192 bfd_archive_filename (section->owner),
3193 stub_name);
3194 return NULL;
3195 }
3196
3197 stub_entry->stub_sec = stub_sec;
3198 stub_entry->stub_offset = 0;
3199 stub_entry->id_sec = link_sec;
3200 return stub_entry;
3201}
3202
82bd7b59
AM
3203/* Create sections for linker generated code. */
3204
b34976b6 3205static bfd_boolean
4ce794b7 3206create_linkage_sections (bfd *dynobj, struct bfd_link_info *info)
82bd7b59
AM
3207{
3208 struct ppc_link_hash_table *htab;
3209 flagword flags;
3210
3211 htab = ppc_hash_table (info);
3212
3213 /* Create .sfpr for code to save and restore fp regs. */
3214 flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY
3215 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
721956f4 3216 htab->sfpr = bfd_make_section_anyway (dynobj, ".sfpr");
82bd7b59
AM
3217 if (htab->sfpr == NULL
3218 || ! bfd_set_section_flags (dynobj, htab->sfpr, flags)
3219 || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2))
b34976b6 3220 return FALSE;
82bd7b59 3221
721956f4 3222 /* Create .glink for lazy dynamic linking support. */
4ce794b7
AM
3223 htab->glink = bfd_make_section_anyway (dynobj, ".glink");
3224 if (htab->glink == NULL
3225 || ! bfd_set_section_flags (dynobj, htab->glink, flags)
3226 || ! bfd_set_section_alignment (dynobj, htab->glink, 2))
b34976b6 3227 return FALSE;
82bd7b59 3228
721956f4
AM
3229 /* Create .branch_lt for plt_branch stubs. */
3230 flags = (SEC_ALLOC | SEC_LOAD
3231 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM
3232 htab->brlt = bfd_make_section_anyway (dynobj, ".branch_lt");
3233 if (htab->brlt == NULL
3234 || ! bfd_set_section_flags (dynobj, htab->brlt, flags)
3235 || ! bfd_set_section_alignment (dynobj, htab->brlt, 3))
b34976b6 3236 return FALSE;
721956f4
AM
3237
3238 if (info->shared)
3239 {
3240 flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY
3241 | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4ce794b7
AM
3242 htab->relbrlt = bfd_make_section_anyway (dynobj, ".rela.branch_lt");
3243 if (!htab->relbrlt
3244 || ! bfd_set_section_flags (dynobj, htab->relbrlt, flags)
3245 || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3))
b34976b6 3246 return FALSE;
721956f4 3247 }
b34976b6 3248 return TRUE;
82bd7b59
AM
3249}
3250
e717da7e
AM
3251/* Create .got and .rela.got sections in ABFD, and .got in dynobj if
3252 not already done. */
65f38f15 3253
b34976b6 3254static bfd_boolean
e717da7e 3255create_got_section (bfd *abfd, struct bfd_link_info *info)
65f38f15 3256{
e717da7e
AM
3257 asection *got, *relgot;
3258 flagword flags;
3259 struct ppc_link_hash_table *htab = ppc_hash_table (info);
65f38f15 3260
4ce794b7 3261 if (!htab->got)
e717da7e
AM
3262 {
3263 if (! _bfd_elf_create_got_section (htab->elf.dynobj, info))
3264 return FALSE;
3265
3266 htab->got = bfd_get_section_by_name (htab->elf.dynobj, ".got");
3267 if (!htab->got)
3268 abort ();
3269 }
3270
3271 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
3272 | SEC_LINKER_CREATED);
3273
3274 got = bfd_make_section (abfd, ".got");
3275 if (!got
3276 || !bfd_set_section_flags (abfd, got, flags)
3277 || !bfd_set_section_alignment (abfd, got, 3))
3278 return FALSE;
65f38f15 3279
e717da7e
AM
3280 relgot = bfd_make_section (abfd, ".rela.got");
3281 if (!relgot
3282 || ! bfd_set_section_flags (abfd, relgot, flags | SEC_READONLY)
3283 || ! bfd_set_section_alignment (abfd, relgot, 3))
b34976b6 3284 return FALSE;
e717da7e
AM
3285
3286 ppc64_elf_tdata (abfd)->got = got;
3287 ppc64_elf_tdata (abfd)->relgot = relgot;
b34976b6 3288 return TRUE;
65f38f15 3289}
5bd4f169 3290
82bd7b59 3291/* Create the dynamic sections, and set up shortcuts. */
5bd4f169 3292
b34976b6 3293static bfd_boolean
4ce794b7 3294ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
5bd4f169 3295{
65f38f15 3296 struct ppc_link_hash_table *htab;
5bd4f169 3297
65f38f15 3298 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
b34976b6 3299 return FALSE;
65f38f15 3300
e717da7e
AM
3301 htab = ppc_hash_table (info);
3302 if (!htab->got)
3303 htab->got = bfd_get_section_by_name (dynobj, ".got");
4ce794b7
AM
3304 htab->plt = bfd_get_section_by_name (dynobj, ".plt");
3305 htab->relplt = bfd_get_section_by_name (dynobj, ".rela.plt");
3306 htab->dynbss = bfd_get_section_by_name (dynobj, ".dynbss");
65f38f15 3307 if (!info->shared)
4ce794b7 3308 htab->relbss = bfd_get_section_by_name (dynobj, ".rela.bss");
65f38f15 3309
e717da7e 3310 if (!htab->got || !htab->plt || !htab->relplt || !htab->dynbss
4ce794b7 3311 || (!info->shared && !htab->relbss))
65f38f15
AM
3312 abort ();
3313
b34976b6 3314 return TRUE;
5bd4f169
AM
3315}
3316
65f38f15
AM
3317/* Copy the extra info we tack onto an elf_link_hash_entry. */
3318
3319static void
9c5bfbb7
AM
3320ppc64_elf_copy_indirect_symbol
3321 (const struct elf_backend_data *bed ATTRIBUTE_UNUSED,
3322 struct elf_link_hash_entry *dir,
3323 struct elf_link_hash_entry *ind)
65f38f15
AM
3324{
3325 struct ppc_link_hash_entry *edir, *eind;
81848ca0 3326 flagword mask;
65f38f15
AM
3327
3328 edir = (struct ppc_link_hash_entry *) dir;
3329 eind = (struct ppc_link_hash_entry *) ind;
3330
411e1bfb 3331 /* Copy over any dynamic relocs we may have on the indirect sym. */
bbd7ec4a 3332 if (eind->dyn_relocs != NULL)
65f38f15 3333 {
bbd7ec4a
AM
3334 if (edir->dyn_relocs != NULL)
3335 {
3336 struct ppc_dyn_relocs **pp;
3337 struct ppc_dyn_relocs *p;
3338
411e1bfb 3339 if (eind->elf.root.type == bfd_link_hash_indirect)
bbd7ec4a
AM
3340 abort ();
3341
3342 /* Add reloc counts against the weak sym to the strong sym
3343 list. Merge any entries against the same section. */
3344 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
3345 {
3346 struct ppc_dyn_relocs *q;
3347
3348 for (q = edir->dyn_relocs; q != NULL; q = q->next)
3349 if (q->sec == p->sec)
3350 {
3351 q->pc_count += p->pc_count;
3352 q->count += p->count;
3353 *pp = p->next;
3354 break;
3355 }
3356 if (q == NULL)
3357 pp = &p->next;
3358 }
3359 *pp = edir->dyn_relocs;
3360 }
3361
65f38f15
AM
3362 edir->dyn_relocs = eind->dyn_relocs;
3363 eind->dyn_relocs = NULL;
3364 }
65f38f15 3365
6349e628
AM
3366 edir->is_func |= eind->is_func;
3367 edir->is_func_descriptor |= eind->is_func_descriptor;
3368 edir->is_entry |= eind->is_entry;
58ac9f71 3369 edir->tls_mask |= eind->tls_mask;
6349e628 3370
81848ca0 3371 mask = (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR
3addb0a9
DJ
3372 | ELF_LINK_HASH_REF_REGULAR_NONWEAK | ELF_LINK_NON_GOT_REF
3373 | ELF_LINK_HASH_NEEDS_PLT);
81848ca0
AM
3374 /* If called to transfer flags for a weakdef during processing
3375 of elf_adjust_dynamic_symbol, don't copy ELF_LINK_NON_GOT_REF.
3376 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
3377 if (ELIMINATE_COPY_RELOCS
3378 && eind->elf.root.type != bfd_link_hash_indirect
3379 && (edir->elf.elf_link_hash_flags & ELF_LINK_HASH_DYNAMIC_ADJUSTED) != 0)
3380 mask &= ~ELF_LINK_NON_GOT_REF;
3381
3382 edir->elf.elf_link_hash_flags |= eind->elf.elf_link_hash_flags & mask;
6349e628
AM
3383
3384 /* If we were called to copy over info for a weak sym, that's all. */
3385 if (eind->elf.root.type != bfd_link_hash_indirect)
3386 return;
3387
81848ca0
AM
3388 /* Copy over got entries that we may have already seen to the
3389 symbol which just became indirect. */
411e1bfb
AM
3390 if (eind->elf.got.glist != NULL)
3391 {
3392 if (edir->elf.got.glist != NULL)
3393 {
3394 struct got_entry **entp;
3395 struct got_entry *ent;
3396
3397 for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; )
3398 {
3399 struct got_entry *dent;
3400
3401 for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next)
3402 if (dent->addend == ent->addend
e717da7e 3403 && dent->owner == ent->owner
411e1bfb
AM
3404 && dent->tls_type == ent->tls_type)
3405 {
3406 dent->got.refcount += ent->got.refcount;
3407 *entp = ent->next;
3408 break;
3409 }
3410 if (dent == NULL)
3411 entp = &ent->next;
3412 }
3413 *entp = edir->elf.got.glist;
3414 }
3415
3416 edir->elf.got.glist = eind->elf.got.glist;
3417 eind->elf.got.glist = NULL;
3418 }
3419
3420 /* And plt entries. */
3421 if (eind->elf.plt.plist != NULL)
3422 {
3423 if (edir->elf.plt.plist != NULL)
3424 {
3425 struct plt_entry **entp;
3426 struct plt_entry *ent;
3427
3428 for (entp = &eind->elf.plt.plist; (ent = *entp) != NULL; )
3429 {
3430 struct plt_entry *dent;
3431
3432 for (dent = edir->elf.plt.plist; dent != NULL; dent = dent->next)
3433 if (dent->addend == ent->addend)
3434 {
3435 dent->plt.refcount += ent->plt.refcount;
3436 *entp = ent->next;
3437 break;
3438 }
3439 if (dent == NULL)
3440 entp = &ent->next;
3441 }
3442 *entp = edir->elf.plt.plist;
3443 }
3444
3445 edir->elf.plt.plist = eind->elf.plt.plist;
3446 eind->elf.plt.plist = NULL;
3447 }
3448
411e1bfb
AM
3449 if (edir->elf.dynindx == -1)
3450 {
3451 edir->elf.dynindx = eind->elf.dynindx;
3452 edir->elf.dynstr_index = eind->elf.dynstr_index;
3453 eind->elf.dynindx = -1;
3454 eind->elf.dynstr_index = 0;
3455 }
3456 else
3457 BFD_ASSERT (eind->elf.dynindx == -1);
3458}
3459
3460/* Set a flag, used by ppc64_elf_gc_mark_hook, on the entry symbol and
3461 symbols undefined on the command-line. */
3462
3463bfd_boolean
4ce794b7 3464ppc64_elf_mark_entry_syms (struct bfd_link_info *info)
411e1bfb
AM
3465{
3466 struct ppc_link_hash_table *htab;
3467 struct bfd_sym_chain *sym;
3468
3469 htab = ppc_hash_table (info);
3470 for (sym = info->gc_sym_list; sym; sym = sym->next)
3471 {
3472 struct elf_link_hash_entry *h;
3473
3474 h = elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, FALSE);
3475 if (h != NULL)
3476 ((struct ppc_link_hash_entry *) h)->is_entry = 1;
3477 }
3478 return TRUE;
3479}
3480
555cd476
AM
3481/* Hack symbols defined in .opd sections to be function type. */
3482
3483static bfd_boolean
3484ppc64_elf_add_symbol_hook (bfd *ibfd ATTRIBUTE_UNUSED,
3485 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3486 Elf_Internal_Sym *isym,
3487 const char **name ATTRIBUTE_UNUSED,
3488 flagword *flags ATTRIBUTE_UNUSED,
3489 asection **sec,
3490 bfd_vma *value ATTRIBUTE_UNUSED)
3491{
3492 if (strcmp (bfd_get_section_name (ibfd, *sec), ".opd") == 0)
3493 isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC);
3494 return TRUE;
3495}
3496
411e1bfb 3497static bfd_boolean
4ce794b7
AM
3498update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr,
3499 unsigned long r_symndx, bfd_vma r_addend, int tls_type)
411e1bfb
AM
3500{
3501 struct got_entry **local_got_ents = elf_local_got_ents (abfd);
e7b938ca 3502 char *local_got_tls_masks;
411e1bfb
AM
3503
3504 if (local_got_ents == NULL)
3505 {
3506 bfd_size_type size = symtab_hdr->sh_info;
3507
e7b938ca 3508 size *= sizeof (*local_got_ents) + sizeof (*local_got_tls_masks);
4ce794b7 3509 local_got_ents = bfd_zalloc (abfd, size);
411e1bfb
AM
3510 if (local_got_ents == NULL)
3511 return FALSE;
3512 elf_local_got_ents (abfd) = local_got_ents;
3513 }
3514
3515 if ((tls_type & TLS_EXPLICIT) == 0)
3516 {
3517 struct got_entry *ent;
3518
3519 for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next)
e717da7e
AM
3520 if (ent->addend == r_addend
3521 && ent->owner == abfd
3522 && ent->tls_type == tls_type)
411e1bfb
AM
3523 break;
3524 if (ent == NULL)
3525 {
3526 bfd_size_type amt = sizeof (*ent);
4ce794b7 3527 ent = bfd_alloc (abfd, amt);
411e1bfb
AM
3528 if (ent == NULL)
3529 return FALSE;
3530 ent->next = local_got_ents[r_symndx];
3531 ent->addend = r_addend;
e717da7e 3532 ent->owner = abfd;
411e1bfb
AM
3533 ent->tls_type = tls_type;
3534 ent->got.refcount = 0;
3535 local_got_ents[r_symndx] = ent;
3536 }
3537 ent->got.refcount += 1;
3538 }
3539
e7b938ca
AM
3540 local_got_tls_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
3541 local_got_tls_masks[r_symndx] |= tls_type;
411e1bfb 3542 return TRUE;
65f38f15
AM
3543}
3544
411e1bfb 3545static bfd_boolean
4ce794b7 3546update_plt_info (bfd *abfd, struct ppc_link_hash_entry *eh, bfd_vma addend)
1e2f5b6e 3547{
411e1bfb 3548 struct plt_entry *ent;
1e2f5b6e 3549
411e1bfb
AM
3550 for (ent = eh->elf.plt.plist; ent != NULL; ent = ent->next)
3551 if (ent->addend == addend)
3552 break;
3553 if (ent == NULL)
1e2f5b6e 3554 {
411e1bfb 3555 bfd_size_type amt = sizeof (*ent);
4ce794b7 3556 ent = bfd_alloc (abfd, amt);
411e1bfb
AM
3557 if (ent == NULL)
3558 return FALSE;
3559 ent->next = eh->elf.plt.plist;
3560 ent->addend = addend;
3561 ent->plt.refcount = 0;
3562 eh->elf.plt.plist = ent;
1e2f5b6e 3563 }
411e1bfb
AM
3564 ent->plt.refcount += 1;
3565 eh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
3566 eh->is_func = 1;
b34976b6 3567 return TRUE;
1e2f5b6e
AM
3568}
3569
50bc7936
AM
3570/* Find the function descriptor hash entry from the given function code
3571 hash entry FH. Link the entries via their OH fields. */
3572static struct ppc_link_hash_entry *
3573get_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab)
3574{
3575 struct ppc_link_hash_entry *fdh = (struct ppc_link_hash_entry *) fh->oh;
3576
3577 if (fdh == NULL)
3578 {
3579 const char *fd_name = fh->elf.root.root.string + 1;
3580
3581 fdh = (struct ppc_link_hash_entry *)
3582 elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE);
3583 if (fdh != NULL)
3584 {
3585 fdh->is_func_descriptor = 1;
3586 fdh->oh = &fh->elf;
3587 fh->is_func = 1;
3588 fh->oh = &fdh->elf;
3589 }
3590 }
3591
3592 return fdh;
3593}
3594
5bd4f169 3595/* Look through the relocs for a section during the first phase, and
65f38f15 3596 calculate needed space in the global offset table, procedure
5d1634d7 3597 linkage table, and dynamic reloc sections. */
5bd4f169 3598
b34976b6 3599static bfd_boolean
4ce794b7
AM
3600ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
3601 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 3602{
65f38f15 3603 struct ppc_link_hash_table *htab;
5bd4f169
AM
3604 Elf_Internal_Shdr *symtab_hdr;
3605 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3606 const Elf_Internal_Rela *rel;
3607 const Elf_Internal_Rela *rel_end;
5bd4f169 3608 asection *sreloc;
1e2f5b6e 3609 asection **opd_sym_map;
5bd4f169 3610
1049f94e 3611 if (info->relocatable)
b34976b6 3612 return TRUE;
5bd4f169 3613
680a3378
AM
3614 /* Don't do anything special with non-loaded, non-alloced sections.
3615 In particular, any relocs in such sections should not affect GOT
3616 and PLT reference counting (ie. we don't allow them to create GOT
3617 or PLT entries), there's no possibility or desire to optimize TLS
3618 relocs, and there's not much point in propagating relocs to shared
3619 libs that the dynamic linker won't relocate. */
3620 if ((sec->flags & SEC_ALLOC) == 0)
3621 return TRUE;
3622
65f38f15 3623 htab = ppc_hash_table (info);
5bd4f169 3624 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
5bd4f169
AM
3625
3626 sym_hashes = elf_sym_hashes (abfd);
3627 sym_hashes_end = (sym_hashes
1e2f5b6e
AM
3628 + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
3629 - symtab_hdr->sh_info);
5bd4f169
AM
3630
3631 sreloc = NULL;
1e2f5b6e
AM
3632 opd_sym_map = NULL;
3633 if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
3634 {
3635 /* Garbage collection needs some extra help with .opd sections.
3636 We don't want to necessarily keep everything referenced by
3637 relocs in .opd, as that would keep all functions. Instead,
3638 if we reference an .opd symbol (a function descriptor), we
3639 want to keep the function code symbol's section. This is
3640 easy for global symbols, but for local syms we need to keep
3641 information about the associated function section. Later, if
3642 edit_opd deletes entries, we'll use this array to adjust
3643 local syms in .opd. */
3644 union opd_info {
3645 asection *func_section;
3646 long entry_adjust;
3647 };
3648 bfd_size_type amt;
3649
eea6121a 3650 amt = sec->size * sizeof (union opd_info) / 24;
4ce794b7 3651 opd_sym_map = bfd_zalloc (abfd, amt);
1e2f5b6e 3652 if (opd_sym_map == NULL)
b34976b6 3653 return FALSE;
f0abc2a1 3654 ppc64_elf_section_data (sec)->opd.func_sec = opd_sym_map;
1e2f5b6e 3655 }
5bd4f169 3656
82bd7b59
AM
3657 if (htab->sfpr == NULL
3658 && !create_linkage_sections (htab->elf.dynobj, info))
b34976b6 3659 return FALSE;
82bd7b59 3660
5bd4f169
AM
3661 rel_end = relocs + sec->reloc_count;
3662 for (rel = relocs; rel < rel_end; rel++)
3663 {
3664 unsigned long r_symndx;
3665 struct elf_link_hash_entry *h;
04c9666a 3666 enum elf_ppc64_reloc_type r_type;
411e1bfb 3667 int tls_type = 0;
5bd4f169
AM
3668
3669 r_symndx = ELF64_R_SYM (rel->r_info);
3670 if (r_symndx < symtab_hdr->sh_info)
3671 h = NULL;
3672 else
3673 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3674
4ce794b7 3675 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 3676 switch (r_type)
5bd4f169 3677 {
411e1bfb
AM
3678 case R_PPC64_GOT_TLSLD16:
3679 case R_PPC64_GOT_TLSLD16_LO:
3680 case R_PPC64_GOT_TLSLD16_HI:
3681 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 3682 ppc64_tlsld_got (abfd)->refcount += 1;
951fd09b 3683 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
3684 goto dogottls;
3685
3686 case R_PPC64_GOT_TLSGD16:
3687 case R_PPC64_GOT_TLSGD16_LO:
3688 case R_PPC64_GOT_TLSGD16_HI:
3689 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 3690 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
3691 goto dogottls;
3692
3693 case R_PPC64_GOT_TPREL16_DS:
3694 case R_PPC64_GOT_TPREL16_LO_DS:
3695 case R_PPC64_GOT_TPREL16_HI:
3696 case R_PPC64_GOT_TPREL16_HA:
3697 if (info->shared)
3698 info->flags |= DF_STATIC_TLS;
3699 tls_type = TLS_TLS | TLS_TPREL;
3700 goto dogottls;
3701
3702 case R_PPC64_GOT_DTPREL16_DS:
3703 case R_PPC64_GOT_DTPREL16_LO_DS:
3704 case R_PPC64_GOT_DTPREL16_HI:
3705 case R_PPC64_GOT_DTPREL16_HA:
3706 tls_type = TLS_TLS | TLS_DTPREL;
3707 dogottls:
3708 sec->has_tls_reloc = 1;
3709 /* Fall thru */
3710
5bd4f169 3711 case R_PPC64_GOT16:
5bd4f169 3712 case R_PPC64_GOT16_DS:
65f38f15
AM
3713 case R_PPC64_GOT16_HA:
3714 case R_PPC64_GOT16_HI:
3715 case R_PPC64_GOT16_LO:
5bd4f169 3716 case R_PPC64_GOT16_LO_DS:
65f38f15 3717 /* This symbol requires a global offset table entry. */
ad8e1ba5 3718 sec->has_gp_reloc = 1;
e717da7e
AM
3719 if (ppc64_elf_tdata (abfd)->got == NULL
3720 && !create_got_section (abfd, info))
b34976b6 3721 return FALSE;
5bd4f169
AM
3722
3723 if (h != NULL)
3724 {
411e1bfb
AM
3725 struct ppc_link_hash_entry *eh;
3726 struct got_entry *ent;
65f38f15 3727
411e1bfb
AM
3728 eh = (struct ppc_link_hash_entry *) h;
3729 for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next)
3730 if (ent->addend == rel->r_addend
e717da7e 3731 && ent->owner == abfd
411e1bfb
AM
3732 && ent->tls_type == tls_type)
3733 break;
3734 if (ent == NULL)
5bd4f169 3735 {
411e1bfb 3736 bfd_size_type amt = sizeof (*ent);
4ce794b7 3737 ent = bfd_alloc (abfd, amt);
411e1bfb 3738 if (ent == NULL)
b34976b6 3739 return FALSE;
411e1bfb
AM
3740 ent->next = eh->elf.got.glist;
3741 ent->addend = rel->r_addend;
e717da7e 3742 ent->owner = abfd;
411e1bfb
AM
3743 ent->tls_type = tls_type;
3744 ent->got.refcount = 0;
3745 eh->elf.got.glist = ent;
5bd4f169 3746 }
411e1bfb 3747 ent->got.refcount += 1;
e7b938ca 3748 eh->tls_mask |= tls_type;
5bd4f169 3749 }
411e1bfb
AM
3750 else
3751 /* This is a global offset table entry for a local symbol. */
3752 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3753 rel->r_addend, tls_type))
3754 return FALSE;
5bd4f169
AM
3755 break;
3756
5bd4f169 3757 case R_PPC64_PLT16_HA:
65f38f15
AM
3758 case R_PPC64_PLT16_HI:
3759 case R_PPC64_PLT16_LO:
3760 case R_PPC64_PLT32:
3761 case R_PPC64_PLT64:
5bd4f169 3762 /* This symbol requires a procedure linkage table entry. We
3fad3c7c
AM
3763 actually build the entry in adjust_dynamic_symbol,
3764 because this might be a case of linking PIC code without
3765 linking in any dynamic objects, in which case we don't
3766 need to generate a procedure linkage table after all. */
5bd4f169
AM
3767 if (h == NULL)
3768 {
3769 /* It does not make sense to have a procedure linkage
3fad3c7c 3770 table entry for a local symbol. */
5bd4f169 3771 bfd_set_error (bfd_error_bad_value);
b34976b6 3772 return FALSE;
5bd4f169 3773 }
411e1bfb
AM
3774 else
3775 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3776 rel->r_addend))
3777 return FALSE;
5bd4f169
AM
3778 break;
3779
3780 /* The following relocations don't need to propagate the
3781 relocation if linking a shared object since they are
3782 section relative. */
3783 case R_PPC64_SECTOFF:
3784 case R_PPC64_SECTOFF_LO:
3785 case R_PPC64_SECTOFF_HI:
3786 case R_PPC64_SECTOFF_HA:
3787 case R_PPC64_SECTOFF_DS:
3788 case R_PPC64_SECTOFF_LO_DS:
411e1bfb
AM
3789 case R_PPC64_DTPREL16:
3790 case R_PPC64_DTPREL16_LO:
3791 case R_PPC64_DTPREL16_HI:
3792 case R_PPC64_DTPREL16_HA:
3793 case R_PPC64_DTPREL16_DS:
3794 case R_PPC64_DTPREL16_LO_DS:
3795 case R_PPC64_DTPREL16_HIGHER:
3796 case R_PPC64_DTPREL16_HIGHERA:
3797 case R_PPC64_DTPREL16_HIGHEST:
3798 case R_PPC64_DTPREL16_HIGHESTA:
5bd4f169
AM
3799 break;
3800
ad8e1ba5
AM
3801 /* Nor do these. */
3802 case R_PPC64_TOC16:
3803 case R_PPC64_TOC16_LO:
3804 case R_PPC64_TOC16_HI:
3805 case R_PPC64_TOC16_HA:
3806 case R_PPC64_TOC16_DS:
3807 case R_PPC64_TOC16_LO_DS:
3808 sec->has_gp_reloc = 1;
3809 break;
3810
5bd4f169
AM
3811 /* This relocation describes the C++ object vtable hierarchy.
3812 Reconstruct it for later use during GC. */
3813 case R_PPC64_GNU_VTINHERIT:
c152c796 3814 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3815 return FALSE;
5bd4f169
AM
3816 break;
3817
3818 /* This relocation describes which C++ vtable entries are actually
3819 used. Record for later use during GC. */
3820 case R_PPC64_GNU_VTENTRY:
c152c796 3821 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
b34976b6 3822 return FALSE;
5bd4f169
AM
3823 break;
3824
721956f4
AM
3825 case R_PPC64_REL14:
3826 case R_PPC64_REL14_BRTAKEN:
3827 case R_PPC64_REL14_BRNTAKEN:
3828 htab->has_14bit_branch = 1;
3829 /* Fall through. */
3830
5d1634d7 3831 case R_PPC64_REL24:
e86ce104
AM
3832 if (h != NULL
3833 && h->root.root.string[0] == '.'
3834 && h->root.root.string[1] != 0)
5d1634d7
AM
3835 {
3836 /* We may need a .plt entry if the function this reloc
3837 refers to is in a shared lib. */
411e1bfb
AM
3838 if (!update_plt_info (abfd, (struct ppc_link_hash_entry *) h,
3839 rel->r_addend))
3840 return FALSE;
3841 if (h == htab->tls_get_addr)
3842 sec->has_tls_reloc = 1;
a48ebf4d
AM
3843 else if ((strncmp (h->root.root.string, ".__tls_get_addr", 15)
3844 == 0)
3845 && (h->root.root.string[15] == 0
3846 || h->root.root.string[15] == '@'))
411e1bfb
AM
3847 {
3848 htab->tls_get_addr = h;
3849 sec->has_tls_reloc = 1;
3850 }
3851 }
3852 break;
3853
3854 case R_PPC64_TPREL64:
3855 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL;
3856 if (info->shared)
3857 info->flags |= DF_STATIC_TLS;
3858 goto dotlstoc;
3859
3860 case R_PPC64_DTPMOD64:
3861 if (rel + 1 < rel_end
3862 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
3863 && rel[1].r_offset == rel->r_offset + 8)
951fd09b 3864 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD;
411e1bfb 3865 else
951fd09b 3866 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD;
411e1bfb
AM
3867 goto dotlstoc;
3868
3869 case R_PPC64_DTPREL64:
3870 tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL;
3871 if (rel != relocs
3872 && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64)
3873 && rel[-1].r_offset == rel->r_offset - 8)
3874 /* This is the second reloc of a dtpmod, dtprel pair.
3875 Don't mark with TLS_DTPREL. */
3876 goto dodyn;
3877
3878 dotlstoc:
3879 sec->has_tls_reloc = 1;
3880 if (h != NULL)
3881 {
3882 struct ppc_link_hash_entry *eh;
3883 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 3884 eh->tls_mask |= tls_type;
411e1bfb
AM
3885 }
3886 else
3887 if (!update_local_sym_info (abfd, symtab_hdr, r_symndx,
3888 rel->r_addend, tls_type))
3889 return FALSE;
3890
3891 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3892 {
e7b938ca 3893 /* One extra to simplify get_tls_mask. */
eea6121a 3894 bfd_size_type amt = sec->size * sizeof (unsigned) / 8 + 1;
4ce794b7 3895 ppc64_elf_section_data (sec)->t_symndx = bfd_zalloc (abfd, amt);
411e1bfb
AM
3896 if (ppc64_elf_section_data (sec)->t_symndx == NULL)
3897 return FALSE;
3898 }
3899 BFD_ASSERT (rel->r_offset % 8 == 0);
3900 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8] = r_symndx;
951fd09b
AM
3901
3902 /* Mark the second slot of a GD or LD entry.
3903 -1 to indicate GD and -2 to indicate LD. */
3904 if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD))
3905 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -1;
3906 else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD))
3907 ppc64_elf_section_data (sec)->t_symndx[rel->r_offset / 8 + 1] = -2;
411e1bfb
AM
3908 goto dodyn;
3909
3910 case R_PPC64_TPREL16:
3911 case R_PPC64_TPREL16_LO:
3912 case R_PPC64_TPREL16_HI:
3913 case R_PPC64_TPREL16_HA:
3914 case R_PPC64_TPREL16_DS:
3915 case R_PPC64_TPREL16_LO_DS:
3916 case R_PPC64_TPREL16_HIGHER:
3917 case R_PPC64_TPREL16_HIGHERA:
3918 case R_PPC64_TPREL16_HIGHEST:
3919 case R_PPC64_TPREL16_HIGHESTA:
3920 if (info->shared)
3921 {
3922 info->flags |= DF_STATIC_TLS;
3923 goto dodyn;
5d1634d7
AM
3924 }
3925 break;
3926
e86ce104 3927 case R_PPC64_ADDR64:
1e2f5b6e 3928 if (opd_sym_map != NULL
e86ce104
AM
3929 && h != NULL
3930 && h->root.root.string[0] == '.'
3931 && h->root.root.string[1] != 0)
50bc7936 3932 get_fdh ((struct ppc_link_hash_entry *) h, htab);
e86ce104 3933
1e2f5b6e
AM
3934 if (opd_sym_map != NULL
3935 && h == NULL
3936 && rel + 1 < rel_end
4ce794b7 3937 && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC)
1e2f5b6e
AM
3938 {
3939 asection *s;
3940
3941 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, sec,
3942 r_symndx);
3943 if (s == NULL)
b34976b6 3944 return FALSE;
1e2f5b6e
AM
3945 else if (s != sec)
3946 opd_sym_map[rel->r_offset / 24] = s;
3947 }
e86ce104
AM
3948 /* Fall through. */
3949
04c9666a 3950 case R_PPC64_REL30:
5bd4f169 3951 case R_PPC64_REL32:
04c9666a 3952 case R_PPC64_REL64:
65f38f15
AM
3953 case R_PPC64_ADDR14:
3954 case R_PPC64_ADDR14_BRNTAKEN:
3955 case R_PPC64_ADDR14_BRTAKEN:
3956 case R_PPC64_ADDR16:
3957 case R_PPC64_ADDR16_DS:
3958 case R_PPC64_ADDR16_HA:
3959 case R_PPC64_ADDR16_HI:
3960 case R_PPC64_ADDR16_HIGHER:
3961 case R_PPC64_ADDR16_HIGHERA:
3962 case R_PPC64_ADDR16_HIGHEST:
3963 case R_PPC64_ADDR16_HIGHESTA:
3964 case R_PPC64_ADDR16_LO:
3965 case R_PPC64_ADDR16_LO_DS:
3966 case R_PPC64_ADDR24:
65f38f15 3967 case R_PPC64_ADDR32:
65f38f15
AM
3968 case R_PPC64_UADDR16:
3969 case R_PPC64_UADDR32:
3970 case R_PPC64_UADDR64:
5bd4f169 3971 case R_PPC64_TOC:
81848ca0
AM
3972 if (h != NULL && !info->shared)
3973 /* We may need a copy reloc. */
3974 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
3975
41bd81ab 3976 /* Don't propagate .opd relocs. */
1e2f5b6e 3977 if (NO_OPD_RELOCS && opd_sym_map != NULL)
e86ce104 3978 break;
e86ce104 3979
65f38f15
AM
3980 /* If we are creating a shared library, and this is a reloc
3981 against a global symbol, or a non PC relative reloc
3982 against a local symbol, then we need to copy the reloc
3983 into the shared library. However, if we are linking with
3984 -Bsymbolic, we do not need to copy a reloc against a
3985 global symbol which is defined in an object we are
3986 including in the link (i.e., DEF_REGULAR is set). At
3987 this point we have not seen all the input files, so it is
3988 possible that DEF_REGULAR is not set now but will be set
3989 later (it is never cleared). In case of a weak definition,
3990 DEF_REGULAR may be cleared later by a strong definition in
3991 a shared library. We account for that possibility below by
f4656909 3992 storing information in the dyn_relocs field of the hash
65f38f15
AM
3993 table entry. A similar situation occurs when creating
3994 shared libraries and symbol visibility changes render the
3995 symbol local.
3996
3997 If on the other hand, we are creating an executable, we
3998 may need to keep relocations for symbols satisfied by a
3999 dynamic library if we manage to avoid copy relocs for the
4000 symbol. */
411e1bfb 4001 dodyn:
65f38f15 4002 if ((info->shared
411e1bfb 4003 && (MUST_BE_DYN_RELOC (r_type)
65f38f15
AM
4004 || (h != NULL
4005 && (! info->symbolic
4006 || h->root.type == bfd_link_hash_defweak
4007 || (h->elf_link_hash_flags
4008 & ELF_LINK_HASH_DEF_REGULAR) == 0))))
f4656909
AM
4009 || (ELIMINATE_COPY_RELOCS
4010 && !info->shared
65f38f15
AM
4011 && h != NULL
4012 && (h->root.type == bfd_link_hash_defweak
4013 || (h->elf_link_hash_flags
4014 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
5bd4f169 4015 {
ec338859
AM
4016 struct ppc_dyn_relocs *p;
4017 struct ppc_dyn_relocs **head;
4018
65f38f15
AM
4019 /* We must copy these reloc types into the output file.
4020 Create a reloc section in dynobj and make room for
4021 this reloc. */
5bd4f169
AM
4022 if (sreloc == NULL)
4023 {
4024 const char *name;
65f38f15 4025 bfd *dynobj;
5bd4f169
AM
4026
4027 name = (bfd_elf_string_from_elf_section
4028 (abfd,
4029 elf_elfheader (abfd)->e_shstrndx,
4030 elf_section_data (sec)->rel_hdr.sh_name));
4031 if (name == NULL)
b34976b6 4032 return FALSE;
5bd4f169 4033
65f38f15
AM
4034 if (strncmp (name, ".rela", 5) != 0
4035 || strcmp (bfd_get_section_name (abfd, sec),
4036 name + 5) != 0)
4037 {
4038 (*_bfd_error_handler)
4039 (_("%s: bad relocation section name `%s\'"),
4040 bfd_archive_filename (abfd), name);
5d1634d7 4041 bfd_set_error (bfd_error_bad_value);
65f38f15
AM
4042 }
4043
65f38f15 4044 dynobj = htab->elf.dynobj;
5bd4f169
AM
4045 sreloc = bfd_get_section_by_name (dynobj, name);
4046 if (sreloc == NULL)
4047 {
4048 flagword flags;
4049
4050 sreloc = bfd_make_section (dynobj, name);
4051 flags = (SEC_HAS_CONTENTS | SEC_READONLY
4052 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
4053 if ((sec->flags & SEC_ALLOC) != 0)
4054 flags |= SEC_ALLOC | SEC_LOAD;
4055 if (sreloc == NULL
4056 || ! bfd_set_section_flags (dynobj, sreloc, flags)
65f38f15 4057 || ! bfd_set_section_alignment (dynobj, sreloc, 3))
b34976b6 4058 return FALSE;
5bd4f169 4059 }
65f38f15 4060 elf_section_data (sec)->sreloc = sreloc;
5bd4f169
AM
4061 }
4062
65f38f15
AM
4063 /* If this is a global symbol, we count the number of
4064 relocations we need for this symbol. */
4065 if (h != NULL)
4066 {
ec338859 4067 head = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
65f38f15
AM
4068 }
4069 else
4070 {
ec338859
AM
4071 /* Track dynamic relocs needed for local syms too.
4072 We really need local syms available to do this
4073 easily. Oh well. */
4074
4075 asection *s;
4076 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4077 sec, r_symndx);
4078 if (s == NULL)
b34976b6 4079 return FALSE;
ec338859
AM
4080
4081 head = ((struct ppc_dyn_relocs **)
4082 &elf_section_data (s)->local_dynrel);
65f38f15 4083 }
ec338859
AM
4084
4085 p = *head;
4086 if (p == NULL || p->sec != sec)
4087 {
4ce794b7 4088 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
ec338859 4089 if (p == NULL)
b34976b6 4090 return FALSE;
ec338859
AM
4091 p->next = *head;
4092 *head = p;
4093 p->sec = sec;
4094 p->count = 0;
4095 p->pc_count = 0;
4096 }
4097
4098 p->count += 1;
411e1bfb 4099 if (!MUST_BE_DYN_RELOC (r_type))
ec338859 4100 p->pc_count += 1;
65f38f15 4101 }
5bd4f169 4102 break;
65f38f15
AM
4103
4104 default:
96e0dda4 4105 break;
5bd4f169
AM
4106 }
4107 }
4108
b34976b6 4109 return TRUE;
5bd4f169
AM
4110}
4111
4112/* Return the section that should be marked against GC for a given
4113 relocation. */
4114
4115static asection *
4ce794b7
AM
4116ppc64_elf_gc_mark_hook (asection *sec,
4117 struct bfd_link_info *info ATTRIBUTE_UNUSED,
4118 Elf_Internal_Rela *rel,
4119 struct elf_link_hash_entry *h,
4120 Elf_Internal_Sym *sym)
5bd4f169 4121{
1e2f5b6e
AM
4122 asection *rsec = NULL;
4123
5bd4f169
AM
4124 if (h != NULL)
4125 {
04c9666a 4126 enum elf_ppc64_reloc_type r_type;
1e2f5b6e 4127 struct ppc_link_hash_entry *fdh;
a33d1f77 4128
4ce794b7 4129 r_type = ELF64_R_TYPE (rel->r_info);
a33d1f77 4130 switch (r_type)
5bd4f169
AM
4131 {
4132 case R_PPC64_GNU_VTINHERIT:
4133 case R_PPC64_GNU_VTENTRY:
4134 break;
4135
4136 default:
4137 switch (h->root.type)
4138 {
4139 case bfd_link_hash_defined:
4140 case bfd_link_hash_defweak:
1e2f5b6e
AM
4141 fdh = (struct ppc_link_hash_entry *) h;
4142
4143 /* Function descriptor syms cause the associated
4144 function code sym section to be marked. */
4145 if (fdh->is_func_descriptor)
4146 rsec = fdh->oh->root.u.def.section;
4147
4148 /* Function entry syms return NULL if they are in .opd
4149 and are not ._start (or others undefined on the ld
4150 command line). Thus we avoid marking all function
b34976b6 4151 sections, as all functions are referenced in .opd. */
1e2f5b6e
AM
4152 else if ((fdh->oh != NULL
4153 && ((struct ppc_link_hash_entry *) fdh->oh)->is_entry)
f0abc2a1 4154 || ppc64_elf_section_data (sec)->opd.func_sec == NULL)
1e2f5b6e
AM
4155 rsec = h->root.u.def.section;
4156 break;
5bd4f169
AM
4157
4158 case bfd_link_hash_common:
1e2f5b6e
AM
4159 rsec = h->root.u.c.p->section;
4160 break;
5bd4f169
AM
4161
4162 default:
4163 break;
4164 }
4165 }
4166 }
4167 else
4168 {
1e2f5b6e
AM
4169 asection **opd_sym_section;
4170
4171 rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx);
f0abc2a1 4172 opd_sym_section = ppc64_elf_section_data (rsec)->opd.func_sec;
1e2f5b6e
AM
4173 if (opd_sym_section != NULL)
4174 rsec = opd_sym_section[sym->st_value / 24];
f0abc2a1 4175 else if (ppc64_elf_section_data (sec)->opd.func_sec != NULL)
1e2f5b6e 4176 rsec = NULL;
5bd4f169
AM
4177 }
4178
1e2f5b6e 4179 return rsec;
5bd4f169
AM
4180}
4181
65f38f15
AM
4182/* Update the .got, .plt. and dynamic reloc reference counts for the
4183 section being removed. */
5bd4f169 4184
b34976b6 4185static bfd_boolean
4ce794b7
AM
4186ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
4187 asection *sec, const Elf_Internal_Rela *relocs)
5bd4f169 4188{
411e1bfb 4189 struct ppc_link_hash_table *htab;
5bd4f169
AM
4190 Elf_Internal_Shdr *symtab_hdr;
4191 struct elf_link_hash_entry **sym_hashes;
411e1bfb 4192 struct got_entry **local_got_ents;
5bd4f169 4193 const Elf_Internal_Rela *rel, *relend;
5bd4f169 4194
680a3378
AM
4195 if ((sec->flags & SEC_ALLOC) == 0)
4196 return TRUE;
4197
ec338859
AM
4198 elf_section_data (sec)->local_dynrel = NULL;
4199
411e1bfb 4200 htab = ppc_hash_table (info);
5bd4f169
AM
4201 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
4202 sym_hashes = elf_sym_hashes (abfd);
411e1bfb 4203 local_got_ents = elf_local_got_ents (abfd);
5bd4f169
AM
4204
4205 relend = relocs + sec->reloc_count;
4206 for (rel = relocs; rel < relend; rel++)
a33d1f77
AM
4207 {
4208 unsigned long r_symndx;
04c9666a 4209 enum elf_ppc64_reloc_type r_type;
58ac9f71 4210 struct elf_link_hash_entry *h = NULL;
411e1bfb 4211 char tls_type = 0;
5bd4f169 4212
a33d1f77 4213 r_symndx = ELF64_R_SYM (rel->r_info);
4ce794b7 4214 r_type = ELF64_R_TYPE (rel->r_info);
58ac9f71
AM
4215 if (r_symndx >= symtab_hdr->sh_info)
4216 {
4217 struct ppc_link_hash_entry *eh;
4218 struct ppc_dyn_relocs **pp;
4219 struct ppc_dyn_relocs *p;
4220
4221 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4222 eh = (struct ppc_link_hash_entry *) h;
4223
4224 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
4225 if (p->sec == sec)
4226 {
4227 /* Everything must go for SEC. */
4228 *pp = p->next;
4229 break;
4230 }
4231 }
4232
a33d1f77
AM
4233 switch (r_type)
4234 {
411e1bfb
AM
4235 case R_PPC64_GOT_TLSLD16:
4236 case R_PPC64_GOT_TLSLD16_LO:
4237 case R_PPC64_GOT_TLSLD16_HI:
4238 case R_PPC64_GOT_TLSLD16_HA:
e717da7e 4239 ppc64_tlsld_got (abfd)->refcount -= 1;
951fd09b 4240 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
4241 goto dogot;
4242
4243 case R_PPC64_GOT_TLSGD16:
4244 case R_PPC64_GOT_TLSGD16_LO:
4245 case R_PPC64_GOT_TLSGD16_HI:
4246 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 4247 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
4248 goto dogot;
4249
4250 case R_PPC64_GOT_TPREL16_DS:
4251 case R_PPC64_GOT_TPREL16_LO_DS:
4252 case R_PPC64_GOT_TPREL16_HI:
4253 case R_PPC64_GOT_TPREL16_HA:
4254 tls_type = TLS_TLS | TLS_TPREL;
4255 goto dogot;
4256
4257 case R_PPC64_GOT_DTPREL16_DS:
4258 case R_PPC64_GOT_DTPREL16_LO_DS:
4259 case R_PPC64_GOT_DTPREL16_HI:
4260 case R_PPC64_GOT_DTPREL16_HA:
4261 tls_type = TLS_TLS | TLS_DTPREL;
4262 goto dogot;
4263
a33d1f77
AM
4264 case R_PPC64_GOT16:
4265 case R_PPC64_GOT16_DS:
4266 case R_PPC64_GOT16_HA:
4267 case R_PPC64_GOT16_HI:
4268 case R_PPC64_GOT16_LO:
4269 case R_PPC64_GOT16_LO_DS:
411e1bfb
AM
4270 dogot:
4271 {
4272 struct got_entry *ent;
4273
58ac9f71
AM
4274 if (h != NULL)
4275 ent = h->got.glist;
411e1bfb
AM
4276 else
4277 ent = local_got_ents[r_symndx];
4278
4279 for (; ent != NULL; ent = ent->next)
4280 if (ent->addend == rel->r_addend
e717da7e 4281 && ent->owner == abfd
411e1bfb
AM
4282 && ent->tls_type == tls_type)
4283 break;
4284 if (ent == NULL)
4285 abort ();
4286 if (ent->got.refcount > 0)
4287 ent->got.refcount -= 1;
4288 }
a33d1f77 4289 break;
65f38f15 4290
a33d1f77
AM
4291 case R_PPC64_PLT16_HA:
4292 case R_PPC64_PLT16_HI:
4293 case R_PPC64_PLT16_LO:
4294 case R_PPC64_PLT32:
4295 case R_PPC64_PLT64:
721956f4
AM
4296 case R_PPC64_REL14:
4297 case R_PPC64_REL14_BRNTAKEN:
4298 case R_PPC64_REL14_BRTAKEN:
5d1634d7 4299 case R_PPC64_REL24:
58ac9f71 4300 if (h != NULL)
5d1634d7 4301 {
411e1bfb
AM
4302 struct plt_entry *ent;
4303
411e1bfb
AM
4304 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4305 if (ent->addend == rel->r_addend)
4306 break;
4307 if (ent == NULL)
4308 abort ();
4309 if (ent->plt.refcount > 0)
4310 ent->plt.refcount -= 1;
5d1634d7 4311 }
e86ce104 4312 break;
5d1634d7 4313
a33d1f77
AM
4314 default:
4315 break;
4316 }
4317 }
b34976b6 4318 return TRUE;
5bd4f169
AM
4319}
4320
e86ce104
AM
4321/* Called via elf_link_hash_traverse to transfer dynamic linking
4322 information on function code symbol entries to their corresponding
4323 function descriptor symbol entries. */
b34976b6 4324static bfd_boolean
4ce794b7 4325func_desc_adjust (struct elf_link_hash_entry *h, void *inf)
5bd4f169 4326{
e86ce104 4327 struct bfd_link_info *info;
65f38f15 4328 struct ppc_link_hash_table *htab;
411e1bfb 4329 struct plt_entry *ent;
50bc7936
AM
4330 struct ppc_link_hash_entry *fh;
4331 struct ppc_link_hash_entry *fdh;
4332 bfd_boolean force_local;
5bd4f169 4333
50bc7936
AM
4334 fh = (struct ppc_link_hash_entry *) h;
4335 if (fh->elf.root.type == bfd_link_hash_indirect)
b34976b6 4336 return TRUE;
e86ce104 4337
50bc7936
AM
4338 if (fh->elf.root.type == bfd_link_hash_warning)
4339 fh = (struct ppc_link_hash_entry *) fh->elf.root.u.i.link;
e92d460e 4340
4ce794b7 4341 info = inf;
65f38f15 4342 htab = ppc_hash_table (info);
5bd4f169 4343
e86ce104
AM
4344 /* If this is a function code symbol, transfer dynamic linking
4345 information to the function descriptor symbol. */
50bc7936 4346 if (!fh->is_func)
b34976b6 4347 return TRUE;
e86ce104 4348
50bc7936
AM
4349 if (fh->elf.root.type == bfd_link_hash_undefweak
4350 && (fh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR))
b34976b6 4351 htab->have_undefweak = TRUE;
805fc799 4352
50bc7936 4353 for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next)
411e1bfb
AM
4354 if (ent->plt.refcount > 0)
4355 break;
50bc7936
AM
4356 if (ent == NULL
4357 || fh->elf.root.root.string[0] != '.'
4358 || fh->elf.root.root.string[1] == '\0')
4359 return TRUE;
5bd4f169 4360
50bc7936
AM
4361 /* Find the corresponding function descriptor symbol. Create it
4362 as undefined if necessary. */
5bd4f169 4363
50bc7936
AM
4364 fdh = get_fdh (fh, htab);
4365 if (fdh != NULL)
4366 while (fdh->elf.root.type == bfd_link_hash_indirect
4367 || fdh->elf.root.type == bfd_link_hash_warning)
4368 fdh = (struct ppc_link_hash_entry *) fdh->elf.root.u.i.link;
5bd4f169 4369
50bc7936
AM
4370 if (fdh == NULL
4371 && info->shared
4372 && (fh->elf.root.type == bfd_link_hash_undefined
4373 || fh->elf.root.type == bfd_link_hash_undefweak))
4374 {
4375 bfd *abfd;
4376 asymbol *newsym;
4377 struct bfd_link_hash_entry *bh;
4378
4379 abfd = fh->elf.root.u.undef.abfd;
4380 newsym = bfd_make_empty_symbol (abfd);
4381 newsym->name = fh->elf.root.root.string + 1;
4382 newsym->section = bfd_und_section_ptr;
4383 newsym->value = 0;
4384 newsym->flags = BSF_OBJECT;
4385 if (fh->elf.root.type == bfd_link_hash_undefweak)
4386 newsym->flags |= BSF_WEAK;
4387
4388 bh = &fdh->elf.root;
4389 if ( !(_bfd_generic_link_add_one_symbol
4390 (info, abfd, newsym->name, newsym->flags,
4391 newsym->section, newsym->value, NULL, FALSE, FALSE, &bh)))
648cca2c 4392 {
50bc7936 4393 return FALSE;
648cca2c 4394 }
50bc7936
AM
4395 fdh = (struct ppc_link_hash_entry *) bh;
4396 fdh->elf.elf_link_hash_flags &= ~ELF_LINK_NON_ELF;
4397 fdh->elf.size = 24;
4398 fdh->elf.type = STT_OBJECT;
4399 }
648cca2c 4400
50bc7936
AM
4401 if (fdh != NULL
4402 && (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0
4403 && (info->shared
4404 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
4405 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0
4406 || (fdh->elf.root.type == bfd_link_hash_undefweak
4407 && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT)))
4408 {
4409 if (fdh->elf.dynindx == -1)
c152c796 4410 if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf))
50bc7936
AM
4411 return FALSE;
4412 fdh->elf.elf_link_hash_flags
4413 |= (fh->elf.elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR
4414 | ELF_LINK_HASH_REF_DYNAMIC
4415 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
4416 | ELF_LINK_NON_GOT_REF));
4417 if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT)
e86ce104 4418 {
50bc7936
AM
4419 fdh->elf.plt.plist = fh->elf.plt.plist;
4420 fdh->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
e86ce104 4421 }
50bc7936
AM
4422 fdh->is_func_descriptor = 1;
4423 fdh->oh = &fh->elf;
4424 fh->oh = &fdh->elf;
e86ce104
AM
4425 }
4426
50bc7936
AM
4427 /* Now that the info is on the function descriptor, clear the
4428 function code sym info. Any function code syms for which we
4429 don't have a definition in a regular file, we force local.
4430 This prevents a shared library from exporting syms that have
4431 been imported from another library. Function code syms that
4432 are really in the library we must leave global to prevent the
4433 linker dragging in a definition from a static library. */
4434 force_local
4435 = (info->shared
4436 && ((fh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4437 || fdh == NULL
4438 || (fdh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
4439 || (fdh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0));
4440 _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local);
4441
b34976b6 4442 return TRUE;
e86ce104 4443}
40b8271b 4444
82bd7b59
AM
4445#define MIN_SAVE_FPR 14
4446#define MAX_SAVE_FPR 31
4447
e86ce104 4448/* Called near the start of bfd_elf_size_dynamic_sections. We use
82bd7b59
AM
4449 this hook to a) provide some gcc support functions, and b) transfer
4450 dynamic linking information gathered so far on function code symbol
4451 entries, to their corresponding function descriptor symbol entries. */
b34976b6 4452static bfd_boolean
4ce794b7
AM
4453ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED,
4454 struct bfd_link_info *info)
e86ce104
AM
4455{
4456 struct ppc_link_hash_table *htab;
82bd7b59
AM
4457 unsigned int lowest_savef = MAX_SAVE_FPR + 2;
4458 unsigned int lowest_restf = MAX_SAVE_FPR + 2;
4459 unsigned int i;
4460 struct elf_link_hash_entry *h;
721956f4 4461 bfd_byte *p;
82bd7b59 4462 char sym[10];
e86ce104
AM
4463
4464 htab = ppc_hash_table (info);
82bd7b59
AM
4465
4466 if (htab->sfpr == NULL)
4467 /* We don't have any relocs. */
b34976b6 4468 return TRUE;
82bd7b59
AM
4469
4470 /* First provide any missing ._savef* and ._restf* functions. */
4471 memcpy (sym, "._savef14", 10);
4472 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4473 {
4474 sym[7] = i / 10 + '0';
4475 sym[8] = i % 10 + '0';
b34976b6 4476 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4477 if (h != NULL
772119ce 4478 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM
4479 {
4480 if (lowest_savef > i)
4481 lowest_savef = i;
4482 h->root.type = bfd_link_hash_defined;
4483 h->root.u.def.section = htab->sfpr;
4484 h->root.u.def.value = (i - lowest_savef) * 4;
4485 h->type = STT_FUNC;
4486 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4487 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM
4488 }
4489 }
4490
4491 memcpy (sym, "._restf14", 10);
4492 for (i = MIN_SAVE_FPR; i <= MAX_SAVE_FPR; i++)
4493 {
4494 sym[7] = i / 10 + '0';
4495 sym[8] = i % 10 + '0';
b34976b6 4496 h = elf_link_hash_lookup (&htab->elf, sym, FALSE, FALSE, TRUE);
82bd7b59 4497 if (h != NULL
772119ce 4498 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
82bd7b59
AM
4499 {
4500 if (lowest_restf > i)
4501 lowest_restf = i;
4502 h->root.type = bfd_link_hash_defined;
4503 h->root.u.def.section = htab->sfpr;
4504 h->root.u.def.value = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4505 + (i - lowest_restf) * 4);
4506 h->type = STT_FUNC;
4507 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
772119ce 4508 _bfd_elf_link_hash_hide_symbol (info, h, TRUE);
82bd7b59
AM
4509 }
4510 }
4511
4ce794b7 4512 elf_link_hash_traverse (&htab->elf, func_desc_adjust, info);
805fc799 4513
eea6121a
AM
4514 htab->sfpr->size = ((MAX_SAVE_FPR + 2 - lowest_savef) * 4
4515 + (MAX_SAVE_FPR + 2 - lowest_restf) * 4);
82bd7b59 4516
eea6121a 4517 if (htab->sfpr->size == 0)
805fc799
AM
4518 {
4519 if (!htab->have_undefweak)
4520 {
4521 _bfd_strip_section_from_output (info, htab->sfpr);
b34976b6 4522 return TRUE;
805fc799
AM
4523 }
4524
eea6121a 4525 htab->sfpr->size = 4;
805fc799 4526 }
82bd7b59 4527
eea6121a 4528 p = bfd_alloc (htab->elf.dynobj, htab->sfpr->size);
721956f4 4529 if (p == NULL)
b34976b6 4530 return FALSE;
721956f4
AM
4531 htab->sfpr->contents = p;
4532
4533 for (i = lowest_savef; i <= MAX_SAVE_FPR; i++)
4534 {
4535 unsigned int fpr = i << 21;
4536 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4537 bfd_put_32 (htab->elf.dynobj, STFD_FR0_0R1 + fpr + stackoff, p);
4538 p += 4;
4539 }
4540 if (lowest_savef <= MAX_SAVE_FPR)
4541 {
82bd7b59
AM
4542 bfd_put_32 (htab->elf.dynobj, BLR, p);
4543 p += 4;
721956f4 4544 }
82bd7b59 4545
721956f4
AM
4546 for (i = lowest_restf; i <= MAX_SAVE_FPR; i++)
4547 {
4548 unsigned int fpr = i << 21;
4549 unsigned int stackoff = (1 << 16) - (MAX_SAVE_FPR + 1 - i) * 8;
4550 bfd_put_32 (htab->elf.dynobj, LFD_FR0_0R1 + fpr + stackoff, p);
82bd7b59
AM
4551 p += 4;
4552 }
721956f4 4553 if (lowest_restf <= MAX_SAVE_FPR
eea6121a 4554 || htab->sfpr->size == 4)
721956f4
AM
4555 {
4556 bfd_put_32 (htab->elf.dynobj, BLR, p);
4557 }
82bd7b59 4558
b34976b6 4559 return TRUE;
e86ce104
AM
4560}
4561
4562/* Adjust a symbol defined by a dynamic object and referenced by a
4563 regular object. The current definition is in some section of the
4564 dynamic object, but we're not including those sections. We have to
4565 change the definition to something the rest of the link can
4566 understand. */
4567
b34976b6 4568static bfd_boolean
4ce794b7
AM
4569ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
4570 struct elf_link_hash_entry *h)
e86ce104
AM
4571{
4572 struct ppc_link_hash_table *htab;
e86ce104
AM
4573 asection *s;
4574 unsigned int power_of_two;
4575
4576 htab = ppc_hash_table (info);
4577
4578 /* Deal with function syms. */
4579 if (h->type == STT_FUNC
4580 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
4581 {
4582 /* Clear procedure linkage table information for any symbol that
4583 won't need a .plt entry. */
411e1bfb
AM
4584 struct plt_entry *ent;
4585 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
4586 if (ent->plt.refcount > 0)
4587 break;
e86ce104 4588 if (!((struct ppc_link_hash_entry *) h)->is_func_descriptor
411e1bfb 4589 || ent == NULL
9c7a29a3
AM
4590 || SYMBOL_CALLS_LOCAL (info, h)
4591 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4592 && h->root.type == bfd_link_hash_undefweak))
40b8271b 4593 {
411e1bfb 4594 h->plt.plist = NULL;
40b8271b 4595 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
40b8271b 4596 }
5bd4f169 4597 }
bbd7ec4a 4598 else
411e1bfb 4599 h->plt.plist = NULL;
5bd4f169
AM
4600
4601 /* If this is a weak symbol, and there is a real definition, the
4602 processor independent code will have arranged for us to see the
4603 real definition first, and we can just use the same value. */
4604 if (h->weakdef != NULL)
4605 {
4606 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
4607 || h->weakdef->root.type == bfd_link_hash_defweak);
4608 h->root.u.def.section = h->weakdef->root.u.def.section;
4609 h->root.u.def.value = h->weakdef->root.u.def.value;
a23b6845
AM
4610 if (ELIMINATE_COPY_RELOCS)
4611 h->elf_link_hash_flags
4612 = ((h->elf_link_hash_flags & ~ELF_LINK_NON_GOT_REF)
4613 | (h->weakdef->elf_link_hash_flags & ELF_LINK_NON_GOT_REF));
b34976b6 4614 return TRUE;
5bd4f169
AM
4615 }
4616
5bd4f169
AM
4617 /* If we are creating a shared library, we must presume that the
4618 only references to the symbol are via the global offset table.
4619 For such cases we need not do anything here; the relocations will
4620 be handled correctly by relocate_section. */
4621 if (info->shared)
b34976b6 4622 return TRUE;
5bd4f169 4623
65f38f15
AM
4624 /* If there are no references to this symbol that do not use the
4625 GOT, we don't need to generate a copy reloc. */
4626 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
b34976b6 4627 return TRUE;
65f38f15 4628
f4656909 4629 if (ELIMINATE_COPY_RELOCS)
65f38f15 4630 {
f4656909
AM
4631 struct ppc_link_hash_entry * eh;
4632 struct ppc_dyn_relocs *p;
65f38f15 4633
f4656909
AM
4634 eh = (struct ppc_link_hash_entry *) h;
4635 for (p = eh->dyn_relocs; p != NULL; p = p->next)
4636 {
4637 s = p->sec->output_section;
4638 if (s != NULL && (s->flags & SEC_READONLY) != 0)
4639 break;
4640 }
4641
4642 /* If we didn't find any dynamic relocs in read-only sections, then
4643 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4644 if (p == NULL)
4645 {
4646 h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF;
4647 return TRUE;
4648 }
65f38f15
AM
4649 }
4650
5d35169e 4651 if (h->plt.plist != NULL)
97b639ba
AM
4652 {
4653 /* We should never get here, but unfortunately there are versions
4654 of gcc out there that improperly (for this ABI) put initialized
4655 function pointers, vtable refs and suchlike in read-only
4656 sections. Allow them to proceed, but warn that this might
4657 break at runtime. */
4658 (*_bfd_error_handler)
4659 (_("copy reloc against `%s' requires lazy plt linking; "
4660 "avoid setting LD_BIND_NOW=1 or upgrade gcc"),
4661 h->root.root.string);
4662 }
5d35169e
AM
4663
4664 /* This is a reference to a symbol defined by a dynamic object which
4665 is not a function. */
4666
5bd4f169
AM
4667 /* We must allocate the symbol in our .dynbss section, which will
4668 become part of the .bss section of the executable. There will be
4669 an entry for this symbol in the .dynsym section. The dynamic
4670 object will contain position independent code, so all references
4671 from the dynamic object to this symbol will go through the global
4672 offset table. The dynamic linker will use the .dynsym entry to
4673 determine the address it must put in the global offset table, so
4674 both the dynamic object and the regular object will refer to the
4675 same memory location for the variable. */
5bd4f169 4676
04c9666a
AM
4677 /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker
4678 to copy the initial value out of the dynamic object and into the
5bd4f169
AM
4679 runtime process image. We need to remember the offset into the
4680 .rela.bss section we are going to use. */
4681 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
4682 {
eea6121a 4683 htab->relbss->size += sizeof (Elf64_External_Rela);
5bd4f169
AM
4684 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
4685 }
4686
4687 /* We need to figure out the alignment required for this symbol. I
4688 have no idea how ELF linkers handle this. */
4689 power_of_two = bfd_log2 (h->size);
4690 if (power_of_two > 4)
4691 power_of_two = 4;
4692
4693 /* Apply the required alignment. */
4ce794b7 4694 s = htab->dynbss;
eea6121a 4695 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
65f38f15 4696 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
5bd4f169 4697 {
65f38f15 4698 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
b34976b6 4699 return FALSE;
5bd4f169
AM
4700 }
4701
4702 /* Define the symbol as being at this point in the section. */
4703 h->root.u.def.section = s;
eea6121a 4704 h->root.u.def.value = s->size;
5bd4f169
AM
4705
4706 /* Increment the section size to make room for the symbol. */
eea6121a 4707 s->size += h->size;
5bd4f169 4708
b34976b6 4709 return TRUE;
5bd4f169
AM
4710}
4711
e86ce104
AM
4712/* If given a function descriptor symbol, hide both the function code
4713 sym and the descriptor. */
4714static void
4ce794b7
AM
4715ppc64_elf_hide_symbol (struct bfd_link_info *info,
4716 struct elf_link_hash_entry *h,
4717 bfd_boolean force_local)
e86ce104
AM
4718{
4719 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
4720
4721 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
4722 {
721956f4 4723 struct elf_link_hash_entry *fh = ((struct ppc_link_hash_entry *) h)->oh;
e86ce104 4724
721956f4 4725 if (fh == NULL)
d1329ca3
AM
4726 {
4727 const char *p, *q;
4728 struct ppc_link_hash_table *htab;
4729 char save;
4730
4731 /* We aren't supposed to use alloca in BFD because on
4732 systems which do not have alloca the version in libiberty
4733 calls xmalloc, which might cause the program to crash
4734 when it runs out of memory. This function doesn't have a
4735 return status, so there's no way to gracefully return an
4736 error. So cheat. We know that string[-1] can be safely
4737 dereferenced; It's either a string in an ELF string
4738 table, or allocated in an objalloc structure. */
4739
4740 p = h->root.root.string - 1;
4741 save = *p;
4742 *(char *) p = '.';
4743 htab = ppc_hash_table (info);
b34976b6 4744 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
4745 *(char *) p = save;
4746
4747 /* Unfortunately, if it so happens that the string we were
4748 looking for was allocated immediately before this string,
4749 then we overwrote the string terminator. That's the only
4750 reason the lookup should fail. */
4751 if (fh == NULL)
4752 {
4753 q = h->root.root.string + strlen (h->root.root.string);
4754 while (q >= h->root.root.string && *q == *p)
4755 --q, --p;
4756 if (q < h->root.root.string && *p == '.')
b34976b6 4757 fh = elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE);
d1329ca3
AM
4758 }
4759 if (fh != NULL)
4760 {
4761 ((struct ppc_link_hash_entry *) h)->oh = fh;
4762 ((struct ppc_link_hash_entry *) fh)->oh = h;
4763 }
4764 }
e86ce104
AM
4765 if (fh != NULL)
4766 _bfd_elf_link_hash_hide_symbol (info, fh, force_local);
4767 }
4768}
4769
411e1bfb 4770static bfd_boolean
4ce794b7
AM
4771get_sym_h (struct elf_link_hash_entry **hp, Elf_Internal_Sym **symp,
4772 asection **symsecp, char **tls_maskp, Elf_Internal_Sym **locsymsp,
4773 unsigned long r_symndx, bfd *ibfd)
411e1bfb
AM
4774{
4775 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4776
4777 if (r_symndx >= symtab_hdr->sh_info)
4778 {
4779 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd);
4780 struct elf_link_hash_entry *h;
4781
4782 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
4783 while (h->root.type == bfd_link_hash_indirect
4784 || h->root.type == bfd_link_hash_warning)
4785 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4786
4787 if (hp != NULL)
4788 *hp = h;
4789
4790 if (symp != NULL)
4791 *symp = NULL;
4792
4793 if (symsecp != NULL)
4794 {
4795 asection *symsec = NULL;
4796 if (h->root.type == bfd_link_hash_defined
4797 || h->root.type == bfd_link_hash_defweak)
4798 symsec = h->root.u.def.section;
4799 *symsecp = symsec;
4800 }
4801
e7b938ca 4802 if (tls_maskp != NULL)
411e1bfb
AM
4803 {
4804 struct ppc_link_hash_entry *eh;
4805
4806 eh = (struct ppc_link_hash_entry *) h;
e7b938ca 4807 *tls_maskp = &eh->tls_mask;
411e1bfb
AM
4808 }
4809 }
4810 else
4811 {
4812 Elf_Internal_Sym *sym;
4813 Elf_Internal_Sym *locsyms = *locsymsp;
4814
4815 if (locsyms == NULL)
4816 {
4817 locsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
4818 if (locsyms == NULL)
4819 locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr,
4820 symtab_hdr->sh_info,
4821 0, NULL, NULL, NULL);
4822 if (locsyms == NULL)
4823 return FALSE;
4824 *locsymsp = locsyms;
4825 }
4826 sym = locsyms + r_symndx;
4827
4828 if (hp != NULL)
4829 *hp = NULL;
4830
4831 if (symp != NULL)
4832 *symp = sym;
4833
4834 if (symsecp != NULL)
4835 {
4836 asection *symsec = NULL;
4837 if ((sym->st_shndx != SHN_UNDEF
4838 && sym->st_shndx < SHN_LORESERVE)
4839 || sym->st_shndx > SHN_HIRESERVE)
4840 symsec = bfd_section_from_elf_index (ibfd, sym->st_shndx);
4841 *symsecp = symsec;
4842 }
4843
e7b938ca 4844 if (tls_maskp != NULL)
411e1bfb
AM
4845 {
4846 struct got_entry **lgot_ents;
e7b938ca 4847 char *tls_mask;
411e1bfb 4848
e7b938ca 4849 tls_mask = NULL;
411e1bfb
AM
4850 lgot_ents = elf_local_got_ents (ibfd);
4851 if (lgot_ents != NULL)
4852 {
e7b938ca
AM
4853 char *lgot_masks = (char *) (lgot_ents + symtab_hdr->sh_info);
4854 tls_mask = &lgot_masks[r_symndx];
411e1bfb 4855 }
e7b938ca 4856 *tls_maskp = tls_mask;
411e1bfb
AM
4857 }
4858 }
4859 return TRUE;
4860}
4861
e7b938ca 4862/* Returns TLS_MASKP for the given REL symbol. Function return is 0 on
951fd09b 4863 error, 2 on a toc GD type suitable for optimization, 3 on a toc LD
ad8e1ba5 4864 type suitable for optimization, and 1 otherwise. */
951fd09b
AM
4865
4866static int
0d4792f7
AM
4867get_tls_mask (char **tls_maskp, unsigned long *toc_symndx,
4868 Elf_Internal_Sym **locsymsp,
4ce794b7 4869 const Elf_Internal_Rela *rel, bfd *ibfd)
411e1bfb
AM
4870{
4871 unsigned long r_symndx;
0d4792f7 4872 int next_r;
411e1bfb
AM
4873 struct elf_link_hash_entry *h;
4874 Elf_Internal_Sym *sym;
4875 asection *sec;
4876 bfd_vma off;
4877
4878 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 4879 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4880 return 0;
411e1bfb 4881
e7b938ca 4882 if ((*tls_maskp != NULL && **tls_maskp != 0)
411e1bfb
AM
4883 || sec == NULL
4884 || ppc64_elf_section_data (sec)->t_symndx == NULL)
951fd09b 4885 return 1;
411e1bfb
AM
4886
4887 /* Look inside a TOC section too. */
4888 if (h != NULL)
4889 {
4890 BFD_ASSERT (h->root.type == bfd_link_hash_defined);
4891 off = h->root.u.def.value;
4892 }
4893 else
4894 off = sym->st_value;
4895 off += rel->r_addend;
4896 BFD_ASSERT (off % 8 == 0);
4897 r_symndx = ppc64_elf_section_data (sec)->t_symndx[off / 8];
951fd09b 4898 next_r = ppc64_elf_section_data (sec)->t_symndx[off / 8 + 1];
e7b938ca 4899 if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd))
951fd09b 4900 return 0;
0d4792f7
AM
4901 if (toc_symndx != NULL)
4902 *toc_symndx = r_symndx;
4903 if ((h == NULL
4904 || ((h->root.type == bfd_link_hash_defined
4905 || h->root.type == bfd_link_hash_defweak)
4906 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
4907 && (next_r == -1 || next_r == -2))
4908 return 1 - next_r;
951fd09b 4909 return 1;
411e1bfb
AM
4910}
4911
754021d0
AM
4912/* Adjust all global syms defined in opd sections. In gcc generated
4913 code these will already have been done, but I suppose we have to
4914 cater for all sorts of hand written assembly. */
4915
4916static bfd_boolean
4917adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED)
4918{
4919 struct ppc_link_hash_entry *eh;
4920 asection *sym_sec;
4921 long *opd_adjust;
4922
4923 if (h->root.type == bfd_link_hash_indirect)
4924 return TRUE;
4925
4926 if (h->root.type == bfd_link_hash_warning)
4927 h = (struct elf_link_hash_entry *) h->root.u.i.link;
4928
4929 if (h->root.type != bfd_link_hash_defined
4930 && h->root.type != bfd_link_hash_defweak)
4931 return TRUE;
4932
4933 eh = (struct ppc_link_hash_entry *) h;
4934 if (eh->adjust_done)
4935 return TRUE;
4936
4937 sym_sec = eh->elf.root.u.def.section;
4938 if (sym_sec != NULL
4939 && elf_section_data (sym_sec) != NULL
4940 && (opd_adjust = ppc64_elf_section_data (sym_sec)->opd.adjust) != NULL)
4941 {
4942 eh->elf.root.u.def.value += opd_adjust[eh->elf.root.u.def.value / 24];
4943 eh->adjust_done = 1;
4944 }
4945 return TRUE;
4946}
4947
4948/* Remove unused Official Procedure Descriptor entries. Currently we
4949 only remove those associated with functions in discarded link-once
4950 sections, or weakly defined functions that have been overridden. It
4951 would be possible to remove many more entries for statically linked
4952 applications. */
4953
b34976b6 4954bfd_boolean
4ce794b7 4955ppc64_elf_edit_opd (bfd *obfd, struct bfd_link_info *info)
1e2f5b6e
AM
4956{
4957 bfd *ibfd;
754021d0 4958 bfd_boolean some_edited = FALSE;
1e2f5b6e 4959
411e1bfb 4960 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
1e2f5b6e
AM
4961 {
4962 asection *sec;
4963 Elf_Internal_Rela *relstart, *rel, *relend;
4964 Elf_Internal_Shdr *symtab_hdr;
6cdc0ccc 4965 Elf_Internal_Sym *local_syms;
1e2f5b6e
AM
4966 struct elf_link_hash_entry **sym_hashes;
4967 bfd_vma offset;
d6fe2dc1 4968 bfd_size_type amt;
1e2f5b6e 4969 long *adjust;
b34976b6 4970 bfd_boolean need_edit;
1e2f5b6e
AM
4971
4972 sec = bfd_get_section_by_name (ibfd, ".opd");
4973 if (sec == NULL)
4974 continue;
4975
eea6121a 4976 amt = sec->size * sizeof (long) / 24;
f0abc2a1 4977 adjust = ppc64_elf_section_data (sec)->opd.adjust;
d6fe2dc1
AM
4978 if (adjust == NULL)
4979 {
4980 /* Must be a ld -r link. ie. check_relocs hasn't been
4981 called. */
4ce794b7 4982 adjust = bfd_zalloc (obfd, amt);
f0abc2a1 4983 ppc64_elf_section_data (sec)->opd.adjust = adjust;
d6fe2dc1 4984 }
4ce794b7 4985 memset (adjust, 0, amt);
1e2f5b6e
AM
4986
4987 if (sec->output_section == bfd_abs_section_ptr)
4988 continue;
4989
4990 /* Look through the section relocs. */
4991 if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0)
4992 continue;
4993
6cdc0ccc 4994 local_syms = NULL;
1e2f5b6e
AM
4995 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
4996 sym_hashes = elf_sym_hashes (ibfd);
4997
4998 /* Read the relocations. */
4ce794b7 4999 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5000 info->keep_memory);
1e2f5b6e 5001 if (relstart == NULL)
b34976b6 5002 return FALSE;
1e2f5b6e
AM
5003
5004 /* First run through the relocs to check they are sane, and to
5005 determine whether we need to edit this opd section. */
b34976b6 5006 need_edit = FALSE;
1e2f5b6e
AM
5007 offset = 0;
5008 relend = relstart + sec->reloc_count;
50bc7936 5009 for (rel = relstart; rel < relend; )
1e2f5b6e 5010 {
04c9666a 5011 enum elf_ppc64_reloc_type r_type;
1e2f5b6e
AM
5012 unsigned long r_symndx;
5013 asection *sym_sec;
5014 struct elf_link_hash_entry *h;
5015 Elf_Internal_Sym *sym;
5016
5017 /* .opd contains a regular array of 24 byte entries. We're
5018 only interested in the reloc pointing to a function entry
5019 point. */
50bc7936
AM
5020 if (rel->r_offset != offset
5021 || rel + 1 >= relend
5022 || (rel + 1)->r_offset != offset + 8)
1e2f5b6e
AM
5023 {
5024 /* If someone messes with .opd alignment then after a
5025 "ld -r" we might have padding in the middle of .opd.
5026 Also, there's nothing to prevent someone putting
5027 something silly in .opd with the assembler. No .opd
b34976b6 5028 optimization for them! */
1e2f5b6e
AM
5029 (*_bfd_error_handler)
5030 (_("%s: .opd is not a regular array of opd entries"),
5031 bfd_archive_filename (ibfd));
b34976b6 5032 need_edit = FALSE;
1e2f5b6e
AM
5033 break;
5034 }
5035
50bc7936
AM
5036 if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64
5037 || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC)
5038 {
5039 (*_bfd_error_handler)
5040 (_("%s: unexpected reloc type %u in .opd section"),
5041 bfd_archive_filename (ibfd), r_type);
5042 need_edit = FALSE;
5043 break;
5044 }
5045
1e2f5b6e 5046 r_symndx = ELF64_R_SYM (rel->r_info);
411e1bfb
AM
5047 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
5048 r_symndx, ibfd))
50bc7936 5049 goto error_ret;
1e2f5b6e
AM
5050
5051 if (sym_sec == NULL || sym_sec->owner == NULL)
5052 {
411e1bfb
AM
5053 const char *sym_name;
5054 if (h != NULL)
5055 sym_name = h->root.root.string;
5056 else
5057 sym_name = bfd_elf_local_sym_name (ibfd, sym);
5058
1e2f5b6e
AM
5059 (*_bfd_error_handler)
5060 (_("%s: undefined sym `%s' in .opd section"),
5061 bfd_archive_filename (ibfd),
411e1bfb 5062 sym_name);
b34976b6 5063 need_edit = FALSE;
1e2f5b6e
AM
5064 break;
5065 }
5066
51020317
AM
5067 /* opd entries are always for functions defined in the
5068 current input bfd. If the symbol isn't defined in the
5069 input bfd, then we won't be using the function in this
5070 bfd; It must be defined in a linkonce section in another
5071 bfd, or is weak. It's also possible that we are
5072 discarding the function due to a linker script /DISCARD/,
5073 which we test for via the output_section. */
5074 if (sym_sec->owner != ibfd
5075 || sym_sec->output_section == bfd_abs_section_ptr)
b34976b6 5076 need_edit = TRUE;
1e2f5b6e
AM
5077
5078 offset += 24;
50bc7936
AM
5079 rel += 2;
5080 /* Allow for the possibility of a reloc on the third word. */
5081 if (rel < relend
5082 && rel->r_offset == offset - 8)
5083 rel += 1;
1e2f5b6e
AM
5084 }
5085
5086 if (need_edit)
5087 {
5088 Elf_Internal_Rela *write_rel;
5089 bfd_byte *rptr, *wptr;
b34976b6 5090 bfd_boolean skip;
1e2f5b6e
AM
5091
5092 /* This seems a waste of time as input .opd sections are all
5093 zeros as generated by gcc, but I suppose there's no reason
5094 this will always be so. We might start putting something in
5095 the third word of .opd entries. */
5096 if ((sec->flags & SEC_IN_MEMORY) == 0)
5097 {
eea6121a
AM
5098 bfd_byte *loc;
5099 if (!bfd_malloc_and_get_section (ibfd, sec, &loc))
6cdc0ccc 5100 {
eea6121a
AM
5101 if (loc != NULL)
5102 free (loc);
50bc7936 5103 error_ret:
6cdc0ccc
AM
5104 if (local_syms != NULL
5105 && symtab_hdr->contents != (unsigned char *) local_syms)
5106 free (local_syms);
6cdc0ccc
AM
5107 if (elf_section_data (sec)->relocs != relstart)
5108 free (relstart);
b34976b6 5109 return FALSE;
6cdc0ccc 5110 }
1e2f5b6e
AM
5111 sec->contents = loc;
5112 sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS);
5113 }
5114
5115 elf_section_data (sec)->relocs = relstart;
5116
5117 wptr = sec->contents;
5118 rptr = sec->contents;
5119 write_rel = relstart;
b34976b6 5120 skip = FALSE;
1e2f5b6e
AM
5121 offset = 0;
5122 for (rel = relstart; rel < relend; rel++)
5123 {
50bc7936
AM
5124 unsigned long r_symndx;
5125 asection *sym_sec;
5126 struct elf_link_hash_entry *h;
5127 Elf_Internal_Sym *sym;
5128
5129 r_symndx = ELF64_R_SYM (rel->r_info);
5130 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
d37c89e5 5131 r_symndx, ibfd))
50bc7936
AM
5132 goto error_ret;
5133
1e2f5b6e
AM
5134 if (rel->r_offset == offset)
5135 {
50bc7936
AM
5136 struct ppc_link_hash_entry *fdh = NULL;
5137 if (h != NULL)
5138 fdh = get_fdh ((struct ppc_link_hash_entry *) h,
5139 ppc_hash_table (info));
1e2f5b6e 5140
51020317
AM
5141 skip = (sym_sec->owner != ibfd
5142 || sym_sec->output_section == bfd_abs_section_ptr);
a4aa0fb7
AM
5143 if (skip)
5144 {
0be617ce 5145 if (h != NULL && sym_sec->owner == ibfd)
a4aa0fb7
AM
5146 {
5147 /* Arrange for the function descriptor sym
5148 to be dropped. */
d6fe2dc1
AM
5149 fdh->elf.root.u.def.value = 0;
5150 fdh->elf.root.u.def.section = sym_sec;
a4aa0fb7
AM
5151 }
5152 }
5153 else
1e2f5b6e
AM
5154 {
5155 /* We'll be keeping this opd entry. */
5156
5157 if (h != NULL)
5158 {
754021d0
AM
5159 /* Redefine the function descriptor symbol to
5160 this location in the opd section. It is
5161 necessary to update the value here rather
5162 than using an array of adjustments as we do
5163 for local symbols, because various places
5164 in the generic ELF code use the value
5165 stored in u.def.value. */
d6fe2dc1 5166 fdh->elf.root.u.def.value = wptr - sec->contents;
754021d0 5167 fdh->adjust_done = 1;
1e2f5b6e 5168 }
754021d0
AM
5169
5170 /* Local syms are a bit tricky. We could
5171 tweak them as they can be cached, but
5172 we'd need to look through the local syms
5173 for the function descriptor sym which we
5174 don't have at the moment. So keep an
5175 array of adjustments. */
5176 adjust[rel->r_offset / 24] = wptr - rptr;
1e2f5b6e
AM
5177
5178 if (wptr != rptr)
5179 memcpy (wptr, rptr, 24);
5180 wptr += 24;
5181 }
5182 rptr += 24;
5183 offset += 24;
5184 }
5185
50bc7936
AM
5186 if (skip)
5187 {
5188 BFD_ASSERT (MUST_BE_DYN_RELOC (ELF64_R_TYPE (rel->r_info)));
5189 if (info->shared)
5190 {
5191 /* We won't be needing dynamic relocs here. */
5192 struct ppc_dyn_relocs **pp;
5193 struct ppc_dyn_relocs *p;
5194
5195 if (h != NULL)
5196 pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs;
5197 else if (sym_sec != NULL)
5198 pp = ((struct ppc_dyn_relocs **)
5199 &elf_section_data (sym_sec)->local_dynrel);
5200 else
5201 pp = ((struct ppc_dyn_relocs **)
5202 &elf_section_data (sec)->local_dynrel);
5203 while ((p = *pp) != NULL)
5204 {
5205 if (p->sec == sec)
5206 {
5207 p->count -= 1;
5208 if (p->count == 0)
d37c89e5 5209 *pp = p->next;
50bc7936
AM
5210 break;
5211 }
5212 pp = &p->next;
5213 }
5214 }
5215 }
5216 else
1e2f5b6e 5217 {
50bc7936
AM
5218 /* We need to adjust any reloc offsets to point to the
5219 new opd entries. While we're at it, we may as well
5220 remove redundant relocs. */
1e2f5b6e
AM
5221 rel->r_offset += wptr - rptr;
5222 if (write_rel != rel)
5223 memcpy (write_rel, rel, sizeof (*rel));
5224 ++write_rel;
5225 }
5226 }
5227
eea6121a 5228 sec->size = wptr - sec->contents;
1e2f5b6e 5229 sec->reloc_count = write_rel - relstart;
cdcf6e38
AM
5230 /* Fudge the size too, as this is used later in
5231 elf_bfd_final_link if we are emitting relocs. */
5232 elf_section_data (sec)->rel_hdr.sh_size
5233 = sec->reloc_count * elf_section_data (sec)->rel_hdr.sh_entsize;
5234 BFD_ASSERT (elf_section_data (sec)->rel_hdr2 == NULL);
754021d0 5235 some_edited = TRUE;
1e2f5b6e 5236 }
6cdc0ccc 5237 else if (elf_section_data (sec)->relocs != relstart)
1e2f5b6e 5238 free (relstart);
6cdc0ccc 5239
411e1bfb
AM
5240 if (local_syms != NULL
5241 && symtab_hdr->contents != (unsigned char *) local_syms)
5242 {
5243 if (!info->keep_memory)
5244 free (local_syms);
5245 else
5246 symtab_hdr->contents = (unsigned char *) local_syms;
5247 }
5248 }
5249
754021d0
AM
5250 if (some_edited)
5251 elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL);
5252
411e1bfb
AM
5253 return TRUE;
5254}
5255
e1918d23 5256/* Set htab->tls_get_addr and call the generic ELF tls_setup function. */
411e1bfb 5257
e1918d23 5258asection *
4ce794b7 5259ppc64_elf_tls_setup (bfd *obfd, struct bfd_link_info *info)
411e1bfb 5260{
411e1bfb
AM
5261 struct ppc_link_hash_table *htab;
5262
411e1bfb 5263 htab = ppc_hash_table (info);
a48ebf4d
AM
5264 if (htab->tls_get_addr != NULL)
5265 {
5266 struct elf_link_hash_entry *h = htab->tls_get_addr;
5267
5268 while (h->root.type == bfd_link_hash_indirect
5269 || h->root.type == bfd_link_hash_warning)
5270 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5271
5272 htab->tls_get_addr = h;
5273 }
5274
e1918d23 5275 return _bfd_elf_tls_setup (obfd, info);
951fd09b 5276}
411e1bfb 5277
951fd09b
AM
5278/* Run through all the TLS relocs looking for optimization
5279 opportunities. The linker has been hacked (see ppc64elf.em) to do
5280 a preliminary section layout so that we know the TLS segment
5281 offsets. We can't optimize earlier because some optimizations need
5282 to know the tp offset, and we need to optimize before allocating
5283 dynamic relocations. */
5284
5285bfd_boolean
4ce794b7 5286ppc64_elf_tls_optimize (bfd *obfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
951fd09b
AM
5287{
5288 bfd *ibfd;
5289 asection *sec;
5290 struct ppc_link_hash_table *htab;
5291
1049f94e 5292 if (info->relocatable || info->shared)
411e1bfb
AM
5293 return TRUE;
5294
951fd09b 5295 htab = ppc_hash_table (info);
411e1bfb
AM
5296 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5297 {
5298 Elf_Internal_Sym *locsyms = NULL;
5299
5300 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
5301 if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section))
5302 {
5303 Elf_Internal_Rela *relstart, *rel, *relend;
5304 int expecting_tls_get_addr;
5305
5306 /* Read the relocations. */
4ce794b7 5307 relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
45d6a902 5308 info->keep_memory);
411e1bfb
AM
5309 if (relstart == NULL)
5310 return FALSE;
5311
5312 expecting_tls_get_addr = 0;
5313 relend = relstart + sec->reloc_count;
5314 for (rel = relstart; rel < relend; rel++)
5315 {
5316 enum elf_ppc64_reloc_type r_type;
5317 unsigned long r_symndx;
5318 struct elf_link_hash_entry *h;
5319 Elf_Internal_Sym *sym;
5320 asection *sym_sec;
e7b938ca
AM
5321 char *tls_mask;
5322 char tls_set, tls_clear, tls_type = 0;
411e1bfb 5323 bfd_vma value;
951fd09b 5324 bfd_boolean ok_tprel, is_local;
411e1bfb
AM
5325
5326 r_symndx = ELF64_R_SYM (rel->r_info);
e7b938ca 5327 if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms,
411e1bfb
AM
5328 r_symndx, ibfd))
5329 {
5330 err_free_rel:
5331 if (elf_section_data (sec)->relocs != relstart)
5332 free (relstart);
5333 if (locsyms != NULL
5334 && (elf_tdata (ibfd)->symtab_hdr.contents
5335 != (unsigned char *) locsyms))
5336 free (locsyms);
5337 return FALSE;
5338 }
5339
5340 if (h != NULL)
5341 {
5342 if (h->root.type != bfd_link_hash_defined
5343 && h->root.type != bfd_link_hash_defweak)
5344 continue;
5345 value = h->root.u.def.value;
5346 }
5347 else
754021d0
AM
5348 {
5349 value = sym->st_value;
5350
5351 if (elf_section_data (sym_sec) != NULL)
5352 {
5353 long *adjust;
5354 adjust = ppc64_elf_section_data (sym_sec)->opd.adjust;
5355 if (adjust != NULL)
5356 value += adjust[value / 24];
5357 }
5358 }
951fd09b 5359
411e1bfb 5360 ok_tprel = FALSE;
951fd09b
AM
5361 is_local = FALSE;
5362 if (h == NULL
5363 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5364 {
951fd09b 5365 is_local = TRUE;
411e1bfb
AM
5366 value += sym_sec->output_offset;
5367 value += sym_sec->output_section->vma;
e1918d23 5368 value -= htab->elf.tls_sec->vma;
411e1bfb
AM
5369 ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31)
5370 < (bfd_vma) 1 << 32);
5371 }
5372
4ce794b7 5373 r_type = ELF64_R_TYPE (rel->r_info);
411e1bfb
AM
5374 switch (r_type)
5375 {
5376 case R_PPC64_GOT_TLSLD16:
5377 case R_PPC64_GOT_TLSLD16_LO:
5378 case R_PPC64_GOT_TLSLD16_HI:
5379 case R_PPC64_GOT_TLSLD16_HA:
951fd09b
AM
5380 /* These relocs should never be against a symbol
5381 defined in a shared lib. Leave them alone if
5382 that turns out to be the case. */
e717da7e 5383 ppc64_tlsld_got (ibfd)->refcount -= 1;
951fd09b
AM
5384 if (!is_local)
5385 continue;
5386
951fd09b
AM
5387 /* LD -> LE */
5388 tls_set = 0;
5389 tls_clear = TLS_LD;
e7b938ca 5390 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
5391 expecting_tls_get_addr = 1;
5392 break;
5393
5394 case R_PPC64_GOT_TLSGD16:
5395 case R_PPC64_GOT_TLSGD16_LO:
5396 case R_PPC64_GOT_TLSGD16_HI:
5397 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 5398 if (ok_tprel)
411e1bfb
AM
5399 /* GD -> LE */
5400 tls_set = 0;
5401 else
5402 /* GD -> IE */
951fd09b
AM
5403 tls_set = TLS_TLS | TLS_TPRELGD;
5404 tls_clear = TLS_GD;
e7b938ca 5405 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
5406 expecting_tls_get_addr = 1;
5407 break;
5408
5409 case R_PPC64_GOT_TPREL16_DS:
5410 case R_PPC64_GOT_TPREL16_LO_DS:
5411 case R_PPC64_GOT_TPREL16_HI:
5412 case R_PPC64_GOT_TPREL16_HA:
5413 expecting_tls_get_addr = 0;
5414 if (ok_tprel)
5415 {
5416 /* IE -> LE */
5417 tls_set = 0;
5418 tls_clear = TLS_TPREL;
e7b938ca 5419 tls_type = TLS_TLS | TLS_TPREL;
411e1bfb
AM
5420 break;
5421 }
5422 else
5423 continue;
5424
5425 case R_PPC64_REL14:
5426 case R_PPC64_REL14_BRTAKEN:
5427 case R_PPC64_REL14_BRNTAKEN:
5428 case R_PPC64_REL24:
5429 if (h != NULL
5430 && h == htab->tls_get_addr)
5431 {
5432 if (!expecting_tls_get_addr
5433 && rel != relstart
5434 && ((ELF64_R_TYPE (rel[-1].r_info)
5435 == R_PPC64_TOC16)
5436 || (ELF64_R_TYPE (rel[-1].r_info)
5437 == R_PPC64_TOC16_LO)))
5438 {
5439 /* Check for toc tls entries. */
5440 char *toc_tls;
951fd09b 5441 int retval;
411e1bfb 5442
0d4792f7 5443 retval = get_tls_mask (&toc_tls, NULL, &locsyms,
951fd09b
AM
5444 rel - 1, ibfd);
5445 if (retval == 0)
411e1bfb
AM
5446 goto err_free_rel;
5447 if (toc_tls != NULL)
951fd09b 5448 expecting_tls_get_addr = retval > 1;
411e1bfb
AM
5449 }
5450
5451 if (expecting_tls_get_addr)
5452 {
5453 struct plt_entry *ent;
5454 for (ent = h->plt.plist; ent; ent = ent->next)
5455 if (ent->addend == 0)
5456 {
5457 if (ent->plt.refcount > 0)
5458 ent->plt.refcount -= 1;
5459 break;
5460 }
5461 }
5462 }
5463 expecting_tls_get_addr = 0;
5464 continue;
5465
5466 case R_PPC64_TPREL64:
5467 expecting_tls_get_addr = 0;
5468 if (ok_tprel)
5469 {
5470 /* IE -> LE */
5471 tls_set = TLS_EXPLICIT;
5472 tls_clear = TLS_TPREL;
5473 break;
5474 }
5475 else
5476 continue;
5477
5478 case R_PPC64_DTPMOD64:
5479 expecting_tls_get_addr = 0;
951fd09b
AM
5480 if (rel + 1 < relend
5481 && (rel[1].r_info
5482 == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64))
5483 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 5484 {
951fd09b 5485 if (ok_tprel)
411e1bfb 5486 /* GD -> LE */
951fd09b 5487 tls_set = TLS_EXPLICIT | TLS_GD;
411e1bfb
AM
5488 else
5489 /* GD -> IE */
951fd09b
AM
5490 tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD;
5491 tls_clear = TLS_GD;
411e1bfb
AM
5492 }
5493 else
5494 {
951fd09b
AM
5495 if (!is_local)
5496 continue;
5497
5498 /* LD -> LE */
5499 tls_set = TLS_EXPLICIT;
5500 tls_clear = TLS_LD;
411e1bfb
AM
5501 }
5502 break;
5503
5504 default:
5505 expecting_tls_get_addr = 0;
5506 continue;
5507 }
5508
5509 if ((tls_set & TLS_EXPLICIT) == 0)
5510 {
5511 struct got_entry *ent;
5512
5513 /* Adjust got entry for this reloc. */
5514 if (h != NULL)
5515 ent = h->got.glist;
5516 else
5517 ent = elf_local_got_ents (ibfd)[r_symndx];
5518
5519 for (; ent != NULL; ent = ent->next)
5520 if (ent->addend == rel->r_addend
e717da7e 5521 && ent->owner == ibfd
e7b938ca 5522 && ent->tls_type == tls_type)
411e1bfb
AM
5523 break;
5524 if (ent == NULL)
5525 abort ();
5526
5527 if (tls_set == 0)
5528 {
5529 /* We managed to get rid of a got entry. */
5530 if (ent->got.refcount > 0)
5531 ent->got.refcount -= 1;
5532 }
411e1bfb
AM
5533 }
5534 else if (h != NULL)
5535 {
5536 struct ppc_link_hash_entry * eh;
5537 struct ppc_dyn_relocs **pp;
5538 struct ppc_dyn_relocs *p;
5539
5540 /* Adjust dynamic relocs. */
5541 eh = (struct ppc_link_hash_entry *) h;
5542 for (pp = &eh->dyn_relocs;
5543 (p = *pp) != NULL;
5544 pp = &p->next)
5545 if (p->sec == sec)
5546 {
5547 /* If we got rid of a DTPMOD/DTPREL reloc
5548 pair then we'll lose one or two dyn
5549 relocs. */
951fd09b 5550 if (tls_set == (TLS_EXPLICIT | TLS_GD))
411e1bfb 5551 p->count -= 1;
951fd09b 5552 p->count -= 1;
411e1bfb
AM
5553 if (p->count == 0)
5554 *pp = p->next;
5555 break;
5556 }
5557 }
5558
e7b938ca
AM
5559 *tls_mask |= tls_set;
5560 *tls_mask &= ~tls_clear;
411e1bfb
AM
5561 }
5562
5563 if (elf_section_data (sec)->relocs != relstart)
5564 free (relstart);
5565 }
5566
5567 if (locsyms != NULL
5568 && (elf_tdata (ibfd)->symtab_hdr.contents
5569 != (unsigned char *) locsyms))
6cdc0ccc
AM
5570 {
5571 if (!info->keep_memory)
411e1bfb 5572 free (locsyms);
6cdc0ccc 5573 else
411e1bfb 5574 elf_tdata (ibfd)->symtab_hdr.contents = (unsigned char *) locsyms;
6cdc0ccc 5575 }
1e2f5b6e 5576 }
b34976b6 5577 return TRUE;
1e2f5b6e 5578}
b34976b6 5579
65f38f15
AM
5580/* Allocate space in .plt, .got and associated reloc sections for
5581 dynamic relocs. */
5bd4f169 5582
b34976b6 5583static bfd_boolean
4ce794b7 5584allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
5bd4f169 5585{
65f38f15
AM
5586 struct bfd_link_info *info;
5587 struct ppc_link_hash_table *htab;
5bd4f169 5588 asection *s;
65f38f15
AM
5589 struct ppc_link_hash_entry *eh;
5590 struct ppc_dyn_relocs *p;
411e1bfb 5591 struct got_entry *gent;
5bd4f169 5592
e92d460e 5593 if (h->root.type == bfd_link_hash_indirect)
b34976b6 5594 return TRUE;
5bd4f169 5595
e92d460e
AM
5596 if (h->root.type == bfd_link_hash_warning)
5597 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5598
65f38f15
AM
5599 info = (struct bfd_link_info *) inf;
5600 htab = ppc_hash_table (info);
5bd4f169 5601
65f38f15 5602 if (htab->elf.dynamic_sections_created
411e1bfb 5603 && h->dynindx != -1
9c7a29a3 5604 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
5bd4f169 5605 {
411e1bfb
AM
5606 struct plt_entry *pent;
5607 bfd_boolean doneone = FALSE;
5608 for (pent = h->plt.plist; pent != NULL; pent = pent->next)
5609 if (pent->plt.refcount > 0)
5610 {
5611 BFD_ASSERT (((struct ppc_link_hash_entry *) h)->is_func_descriptor);
5612
5613 /* If this is the first .plt entry, make room for the special
5614 first entry. */
4ce794b7 5615 s = htab->plt;
eea6121a
AM
5616 if (s->size == 0)
5617 s->size += PLT_INITIAL_ENTRY_SIZE;
411e1bfb 5618
eea6121a 5619 pent->plt.offset = s->size;
411e1bfb
AM
5620
5621 /* Make room for this entry. */
eea6121a 5622 s->size += PLT_ENTRY_SIZE;
411e1bfb
AM
5623
5624 /* Make room for the .glink code. */
4ce794b7 5625 s = htab->glink;
eea6121a
AM
5626 if (s->size == 0)
5627 s->size += GLINK_CALL_STUB_SIZE;
411e1bfb 5628 /* We need bigger stubs past index 32767. */
eea6121a
AM
5629 if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4)
5630 s->size += 4;
5631 s->size += 2*4;
411e1bfb
AM
5632
5633 /* We also need to make an entry in the .rela.plt section. */
4ce794b7 5634 s = htab->relplt;
eea6121a 5635 s->size += sizeof (Elf64_External_Rela);
411e1bfb
AM
5636 doneone = TRUE;
5637 }
5638 else
5639 pent->plt.offset = (bfd_vma) -1;
5640 if (!doneone)
65f38f15 5641 {
411e1bfb 5642 h->plt.plist = NULL;
65f38f15
AM
5643 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5644 }
5645 }
5646 else
5647 {
411e1bfb 5648 h->plt.plist = NULL;
65f38f15
AM
5649 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
5650 }
5651
951fd09b
AM
5652 eh = (struct ppc_link_hash_entry *) h;
5653 /* Run through the TLS GD got entries first if we're changing them
5654 to TPREL. */
e7b938ca 5655 if ((eh->tls_mask & TLS_TPRELGD) != 0)
951fd09b
AM
5656 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5657 if (gent->got.refcount > 0
5658 && (gent->tls_type & TLS_GD) != 0)
5659 {
5660 /* This was a GD entry that has been converted to TPREL. If
5661 there happens to be a TPREL entry we can use that one. */
5662 struct got_entry *ent;
5663 for (ent = h->got.glist; ent != NULL; ent = ent->next)
5664 if (ent->got.refcount > 0
5665 && (ent->tls_type & TLS_TPREL) != 0
e717da7e
AM
5666 && ent->addend == gent->addend
5667 && ent->owner == gent->owner)
951fd09b
AM
5668 {
5669 gent->got.refcount = 0;
5670 break;
5671 }
5672
5673 /* If not, then we'll be using our own TPREL entry. */
5674 if (gent->got.refcount != 0)
5675 gent->tls_type = TLS_TLS | TLS_TPREL;
5676 }
5677
411e1bfb
AM
5678 for (gent = h->got.glist; gent != NULL; gent = gent->next)
5679 if (gent->got.refcount > 0)
5680 {
951fd09b
AM
5681 bfd_boolean dyn;
5682
411e1bfb 5683 /* Make sure this symbol is output as a dynamic symbol.
951fd09b
AM
5684 Undefined weak syms won't yet be marked as dynamic,
5685 nor will all TLS symbols. */
411e1bfb
AM
5686 if (h->dynindx == -1
5687 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5688 {
c152c796 5689 if (! bfd_elf_link_record_dynamic_symbol (info, h))
411e1bfb
AM
5690 return FALSE;
5691 }
65f38f15 5692
d881513a
AM
5693 if ((gent->tls_type & TLS_LD) != 0
5694 && !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC))
411e1bfb 5695 {
e717da7e 5696 gent->got.offset = ppc64_tlsld_got (gent->owner)->offset;
951fd09b 5697 continue;
411e1bfb 5698 }
951fd09b 5699
e717da7e 5700 s = ppc64_elf_tdata (gent->owner)->got;
eea6121a
AM
5701 gent->got.offset = s->size;
5702 s->size
d881513a 5703 += (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD)) ? 16 : 8;
951fd09b 5704 dyn = htab->elf.dynamic_sections_created;
4e795f50
AM
5705 if ((info->shared
5706 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))
5707 && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
5708 || h->root.type != bfd_link_hash_undefweak))
eea6121a 5709 ppc64_elf_tdata (gent->owner)->relgot->size
e7b938ca 5710 += (gent->tls_type & eh->tls_mask & TLS_GD
951fd09b
AM
5711 ? 2 * sizeof (Elf64_External_Rela)
5712 : sizeof (Elf64_External_Rela));
411e1bfb
AM
5713 }
5714 else
5715 gent->got.offset = (bfd_vma) -1;
65f38f15 5716
65f38f15 5717 if (eh->dyn_relocs == NULL)
b34976b6 5718 return TRUE;
65f38f15
AM
5719
5720 /* In the shared -Bsymbolic case, discard space allocated for
5721 dynamic pc-relative relocs against symbols which turn out to be
5722 defined in regular objects. For the normal shared case, discard
5723 space for relocs that have become local due to symbol visibility
5724 changes. */
5725
5726 if (info->shared)
5727 {
9c7a29a3
AM
5728 /* Relocs that use pc_count are those that appear on a call insn,
5729 or certain REL relocs (see MUST_BE_DYN_RELOC) that can be
5730 generated via assembly. We want calls to protected symbols to
5731 resolve directly to the function rather than going via the plt.
5732 If people want function pointer comparisons to work as expected
5733 then they should avoid writing weird assembly. */
09695f56 5734 if (SYMBOL_CALLS_LOCAL (info, h))
65f38f15
AM
5735 {
5736 struct ppc_dyn_relocs **pp;
5737
5738 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
5bd4f169 5739 {
65f38f15
AM
5740 p->count -= p->pc_count;
5741 p->pc_count = 0;
5742 if (p->count == 0)
5743 *pp = p->next;
5744 else
5745 pp = &p->next;
5bd4f169 5746 }
65f38f15 5747 }
4e795f50
AM
5748
5749 /* Also discard relocs on undefined weak syms with non-default
5750 visibility. */
5751 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
5752 && h->root.type == bfd_link_hash_undefweak)
5753 eh->dyn_relocs = NULL;
65f38f15 5754 }
f4656909 5755 else if (ELIMINATE_COPY_RELOCS)
65f38f15
AM
5756 {
5757 /* For the non-shared case, discard space for relocs against
5758 symbols which turn out to need copy relocs or are not
5759 dynamic. */
5760
5761 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM
5762 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
5763 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
65f38f15
AM
5764 {
5765 /* Make sure this symbol is output as a dynamic symbol.
5766 Undefined weak syms won't yet be marked as dynamic. */
5767 if (h->dynindx == -1
5768 && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)
5769 {
c152c796 5770 if (! bfd_elf_link_record_dynamic_symbol (info, h))
b34976b6 5771 return FALSE;
65f38f15
AM
5772 }
5773
5774 /* If that succeeded, we know we'll be keeping all the
5775 relocs. */
5776 if (h->dynindx != -1)
5777 goto keep;
5778 }
5779
5780 eh->dyn_relocs = NULL;
5781
ec338859 5782 keep: ;
65f38f15
AM
5783 }
5784
5785 /* Finally, allocate space. */
5786 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5787 {
5788 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 5789 sreloc->size += p->count * sizeof (Elf64_External_Rela);
65f38f15
AM
5790 }
5791
b34976b6 5792 return TRUE;
65f38f15
AM
5793}
5794
5795/* Find any dynamic relocs that apply to read-only sections. */
5796
b34976b6 5797static bfd_boolean
4ce794b7 5798readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
65f38f15
AM
5799{
5800 struct ppc_link_hash_entry *eh;
5801 struct ppc_dyn_relocs *p;
5802
e92d460e
AM
5803 if (h->root.type == bfd_link_hash_warning)
5804 h = (struct elf_link_hash_entry *) h->root.u.i.link;
5805
65f38f15
AM
5806 eh = (struct ppc_link_hash_entry *) h;
5807 for (p = eh->dyn_relocs; p != NULL; p = p->next)
5808 {
5809 asection *s = p->sec->output_section;
5810
5811 if (s != NULL && (s->flags & SEC_READONLY) != 0)
5812 {
4ce794b7 5813 struct bfd_link_info *info = inf;
65f38f15
AM
5814
5815 info->flags |= DF_TEXTREL;
5816
5817 /* Not an error, just cut short the traversal. */
b34976b6 5818 return FALSE;
65f38f15
AM
5819 }
5820 }
b34976b6 5821 return TRUE;
65f38f15
AM
5822}
5823
5824/* Set the sizes of the dynamic sections. */
5825
b34976b6 5826static bfd_boolean
4ce794b7
AM
5827ppc64_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
5828 struct bfd_link_info *info)
65f38f15
AM
5829{
5830 struct ppc_link_hash_table *htab;
5831 bfd *dynobj;
5832 asection *s;
b34976b6 5833 bfd_boolean relocs;
65f38f15
AM
5834 bfd *ibfd;
5835
5836 htab = ppc_hash_table (info);
5837 dynobj = htab->elf.dynobj;
5838 if (dynobj == NULL)
5839 abort ();
5840
5841 if (htab->elf.dynamic_sections_created)
5842 {
5843 /* Set the contents of the .interp section to the interpreter. */
36af4a4e 5844 if (info->executable)
65f38f15
AM
5845 {
5846 s = bfd_get_section_by_name (dynobj, ".interp");
5847 if (s == NULL)
5848 abort ();
eea6121a 5849 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
65f38f15
AM
5850 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
5851 }
5852 }
5853
5854 /* Set up .got offsets for local syms, and space for local dynamic
5855 relocs. */
5856 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
5857 {
411e1bfb
AM
5858 struct got_entry **lgot_ents;
5859 struct got_entry **end_lgot_ents;
e7b938ca 5860 char *lgot_masks;
65f38f15
AM
5861 bfd_size_type locsymcount;
5862 Elf_Internal_Shdr *symtab_hdr;
5863 asection *srel;
5864
5865 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
5866 continue;
5867
e717da7e
AM
5868 if (ppc64_tlsld_got (ibfd)->refcount > 0)
5869 {
5870 s = ppc64_elf_tdata (ibfd)->got;
eea6121a
AM
5871 ppc64_tlsld_got (ibfd)->offset = s->size;
5872 s->size += 16;
e717da7e
AM
5873 if (info->shared)
5874 {
5875 srel = ppc64_elf_tdata (ibfd)->relgot;
eea6121a 5876 srel->size += sizeof (Elf64_External_Rela);
e717da7e
AM
5877 }
5878 }
5879 else
5880 ppc64_tlsld_got (ibfd)->offset = (bfd_vma) -1;
5881
65f38f15
AM
5882 for (s = ibfd->sections; s != NULL; s = s->next)
5883 {
ec338859 5884 struct ppc_dyn_relocs *p;
65f38f15 5885
ec338859
AM
5886 for (p = *((struct ppc_dyn_relocs **)
5887 &elf_section_data (s)->local_dynrel);
5888 p != NULL;
5889 p = p->next)
65f38f15 5890 {
ec338859
AM
5891 if (!bfd_is_abs_section (p->sec)
5892 && bfd_is_abs_section (p->sec->output_section))
5893 {
5894 /* Input section has been discarded, either because
5895 it is a copy of a linkonce section or due to
5896 linker script /DISCARD/, so we'll be discarding
5897 the relocs too. */
5898 }
248866a8 5899 else if (p->count != 0)
ec338859
AM
5900 {
5901 srel = elf_section_data (p->sec)->sreloc;
eea6121a 5902 srel->size += p->count * sizeof (Elf64_External_Rela);
248866a8
AM
5903 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
5904 info->flags |= DF_TEXTREL;
ec338859 5905 }
65f38f15
AM
5906 }
5907 }
5908
411e1bfb
AM
5909 lgot_ents = elf_local_got_ents (ibfd);
5910 if (!lgot_ents)
65f38f15
AM
5911 continue;
5912
5913 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
5914 locsymcount = symtab_hdr->sh_info;
411e1bfb 5915 end_lgot_ents = lgot_ents + locsymcount;
e7b938ca 5916 lgot_masks = (char *) end_lgot_ents;
e717da7e
AM
5917 s = ppc64_elf_tdata (ibfd)->got;
5918 srel = ppc64_elf_tdata (ibfd)->relgot;
e7b938ca 5919 for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks)
65f38f15 5920 {
411e1bfb
AM
5921 struct got_entry *ent;
5922
5923 for (ent = *lgot_ents; ent != NULL; ent = ent->next)
5924 if (ent->got.refcount > 0)
5925 {
e7b938ca 5926 if ((ent->tls_type & *lgot_masks & TLS_LD) != 0)
411e1bfb 5927 {
e717da7e 5928 if (ppc64_tlsld_got (ibfd)->offset == (bfd_vma) -1)
411e1bfb 5929 {
eea6121a
AM
5930 ppc64_tlsld_got (ibfd)->offset = s->size;
5931 s->size += 16;
411e1bfb 5932 if (info->shared)
eea6121a 5933 srel->size += sizeof (Elf64_External_Rela);
411e1bfb 5934 }
e717da7e 5935 ent->got.offset = ppc64_tlsld_got (ibfd)->offset;
411e1bfb
AM
5936 }
5937 else
5938 {
eea6121a 5939 ent->got.offset = s->size;
e7b938ca 5940 if ((ent->tls_type & *lgot_masks & TLS_GD) != 0)
411e1bfb 5941 {
eea6121a 5942 s->size += 16;
411e1bfb 5943 if (info->shared)
eea6121a 5944 srel->size += 2 * sizeof (Elf64_External_Rela);
411e1bfb
AM
5945 }
5946 else
5947 {
eea6121a 5948 s->size += 8;
411e1bfb 5949 if (info->shared)
eea6121a 5950 srel->size += sizeof (Elf64_External_Rela);
411e1bfb
AM
5951 }
5952 }
5953 }
5954 else
5955 ent->got.offset = (bfd_vma) -1;
65f38f15
AM
5956 }
5957 }
5958
5959 /* Allocate global sym .plt and .got entries, and space for global
5960 sym dynamic relocs. */
4ce794b7 5961 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
65f38f15
AM
5962
5963 /* We now have determined the sizes of the various dynamic sections.
5964 Allocate memory for them. */
b34976b6 5965 relocs = FALSE;
65f38f15
AM
5966 for (s = dynobj->sections; s != NULL; s = s->next)
5967 {
5968 if ((s->flags & SEC_LINKER_CREATED) == 0)
5969 continue;
5970
4ce794b7 5971 if (s == htab->brlt || s == htab->relbrlt)
721956f4
AM
5972 /* These haven't been allocated yet; don't strip. */
5973 continue;
e717da7e
AM
5974 else if (s == htab->got
5975 || s == htab->plt
4ce794b7 5976 || s == htab->glink)
65f38f15
AM
5977 {
5978 /* Strip this section if we don't need it; see the
5979 comment below. */
5bd4f169 5980 }
65f38f15 5981 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
5bd4f169 5982 {
eea6121a 5983 if (s->size == 0)
5bd4f169
AM
5984 {
5985 /* If we don't need this section, strip it from the
5986 output file. This is mostly to handle .rela.bss and
5987 .rela.plt. We must create both sections in
5988 create_dynamic_sections, because they must be created
5989 before the linker maps input sections to output
5990 sections. The linker does that before
5991 adjust_dynamic_symbol is called, and it is that
5992 function which decides whether anything needs to go
5993 into these sections. */
5bd4f169
AM
5994 }
5995 else
5996 {
4ce794b7 5997 if (s != htab->relplt)
b34976b6 5998 relocs = TRUE;
5bd4f169
AM
5999
6000 /* We use the reloc_count field as a counter if we need
6001 to copy relocs into the output file. */
6002 s->reloc_count = 0;
6003 }
6004 }
65f38f15 6005 else
5bd4f169
AM
6006 {
6007 /* It's not one of our sections, so don't allocate space. */
6008 continue;
6009 }
6010
eea6121a 6011 if (s->size == 0)
5bd4f169
AM
6012 {
6013 _bfd_strip_section_from_output (info, s);
6014 continue;
6015 }
6016
5f333394 6017 /* .plt is in the bss section. We don't initialise it. */
680a3378 6018 if (s == htab->plt)
5f333394
AM
6019 continue;
6020
65f38f15
AM
6021 /* Allocate memory for the section contents. We use bfd_zalloc
6022 here in case unused entries are not reclaimed before the
6023 section's contents are written out. This should not happen,
411e1bfb
AM
6024 but this way if it does we get a R_PPC64_NONE reloc in .rela
6025 sections instead of garbage.
6026 We also rely on the section contents being zero when writing
6027 the GOT. */
eea6121a 6028 s->contents = bfd_zalloc (dynobj, s->size);
65f38f15 6029 if (s->contents == NULL)
b34976b6 6030 return FALSE;
5bd4f169
AM
6031 }
6032
e717da7e
AM
6033 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
6034 {
6035 s = ppc64_elf_tdata (ibfd)->got;
6036 if (s != NULL && s != htab->got)
6037 {
eea6121a 6038 if (s->size == 0)
e717da7e
AM
6039 _bfd_strip_section_from_output (info, s);
6040 else
6041 {
eea6121a 6042 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM
6043 if (s->contents == NULL)
6044 return FALSE;
6045 }
6046 }
6047 s = ppc64_elf_tdata (ibfd)->relgot;
6048 if (s != NULL)
6049 {
eea6121a 6050 if (s->size == 0)
e717da7e
AM
6051 _bfd_strip_section_from_output (info, s);
6052 else
6053 {
eea6121a 6054 s->contents = bfd_zalloc (ibfd, s->size);
e717da7e
AM
6055 if (s->contents == NULL)
6056 return FALSE;
6057 relocs = TRUE;
6058 s->reloc_count = 0;
6059 }
6060 }
6061 }
6062
e86ce104 6063 if (htab->elf.dynamic_sections_created)
5bd4f169
AM
6064 {
6065 /* Add some entries to the .dynamic section. We fill in the
6066 values later, in ppc64_elf_finish_dynamic_sections, but we
6067 must add the entries now so that we get the correct size for
6068 the .dynamic section. The DT_DEBUG entry is filled in by the
6069 dynamic linker and used by the debugger. */
dc810e39 6070#define add_dynamic_entry(TAG, VAL) \
5a580b3a 6071 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39 6072
36af4a4e 6073 if (info->executable)
5bd4f169 6074 {
dc810e39 6075 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 6076 return FALSE;
5bd4f169
AM
6077 }
6078
eea6121a 6079 if (htab->plt != NULL && htab->plt->size != 0)
5bd4f169 6080 {
dc810e39
AM
6081 if (!add_dynamic_entry (DT_PLTGOT, 0)
6082 || !add_dynamic_entry (DT_PLTRELSZ, 0)
6083 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
5d1634d7
AM
6084 || !add_dynamic_entry (DT_JMPREL, 0)
6085 || !add_dynamic_entry (DT_PPC64_GLINK, 0))
b34976b6 6086 return FALSE;
5bd4f169
AM
6087 }
6088
19397422
AM
6089 if (NO_OPD_RELOCS)
6090 {
6091 if (!add_dynamic_entry (DT_PPC64_OPD, 0)
6092 || !add_dynamic_entry (DT_PPC64_OPDSZ, 0))
b34976b6 6093 return FALSE;
19397422
AM
6094 }
6095
5bd4f169
AM
6096 if (relocs)
6097 {
dc810e39
AM
6098 if (!add_dynamic_entry (DT_RELA, 0)
6099 || !add_dynamic_entry (DT_RELASZ, 0)
6100 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
b34976b6 6101 return FALSE;
5bd4f169 6102
65f38f15
AM
6103 /* If any dynamic relocs apply to a read-only section,
6104 then we need a DT_TEXTREL entry. */
248866a8 6105 if ((info->flags & DF_TEXTREL) == 0)
4ce794b7 6106 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
5bd4f169 6107
65f38f15 6108 if ((info->flags & DF_TEXTREL) != 0)
5bd4f169 6109 {
65f38f15 6110 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 6111 return FALSE;
5bd4f169 6112 }
5bd4f169 6113 }
5bd4f169 6114 }
65f38f15 6115#undef add_dynamic_entry
5bd4f169 6116
b34976b6 6117 return TRUE;
5bd4f169
AM
6118}
6119
721956f4 6120/* Determine the type of stub needed, if any, for a call. */
5bd4f169 6121
4ce794b7
AM
6122static inline enum ppc_stub_type
6123ppc_type_of_stub (asection *input_sec,
6124 const Elf_Internal_Rela *rel,
6125 struct ppc_link_hash_entry **hash,
6126 bfd_vma destination)
5bd4f169 6127{
721956f4
AM
6128 struct ppc_link_hash_entry *h = *hash;
6129 bfd_vma location;
6130 bfd_vma branch_offset;
6131 bfd_vma max_branch_offset;
4ce794b7 6132 enum elf_ppc64_reloc_type r_type;
5bd4f169 6133
721956f4
AM
6134 if (h != NULL)
6135 {
6136 if (h->oh != NULL
721956f4 6137 && h->oh->dynindx != -1)
5bd4f169 6138 {
411e1bfb
AM
6139 struct plt_entry *ent;
6140 for (ent = h->oh->plt.plist; ent != NULL; ent = ent->next)
6141 if (ent->addend == rel->r_addend
6142 && ent->plt.offset != (bfd_vma) -1)
6143 {
6144 *hash = (struct ppc_link_hash_entry *) h->oh;
6145 return ppc_stub_plt_call;
6146 }
5bd4f169
AM
6147 }
6148
ee7de3e6
AM
6149 if (!(h->elf.root.type == bfd_link_hash_defined
6150 || h->elf.root.type == bfd_link_hash_defweak)
6151 || h->elf.root.u.def.section->output_section == NULL)
721956f4 6152 return ppc_stub_none;
5d1634d7 6153 }
5d1634d7 6154
721956f4
AM
6155 /* Determine where the call point is. */
6156 location = (input_sec->output_offset
6157 + input_sec->output_section->vma
6158 + rel->r_offset);
5d1634d7 6159
721956f4
AM
6160 branch_offset = destination - location;
6161 r_type = ELF64_R_TYPE (rel->r_info);
5d1634d7 6162
721956f4
AM
6163 /* Determine if a long branch stub is needed. */
6164 max_branch_offset = 1 << 25;
4ce794b7 6165 if (r_type != R_PPC64_REL24)
721956f4 6166 max_branch_offset = 1 << 15;
5d1634d7 6167
721956f4
AM
6168 if (branch_offset + max_branch_offset >= 2 * max_branch_offset)
6169 /* We need a stub. Figure out whether a long_branch or plt_branch
6170 is needed later. */
6171 return ppc_stub_long_branch;
5d1634d7 6172
721956f4 6173 return ppc_stub_none;
5d1634d7
AM
6174}
6175
6176/* Build a .plt call stub. */
6177
4ce794b7
AM
6178static inline bfd_byte *
6179build_plt_stub (bfd *obfd, bfd_byte *p, int offset)
5d1634d7
AM
6180{
6181#define PPC_LO(v) ((v) & 0xffff)
6182#define PPC_HI(v) (((v) >> 16) & 0xffff)
6183#define PPC_HA(v) PPC_HI ((v) + 0x8000)
6184
5d1634d7 6185 bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4;
ad8e1ba5 6186 bfd_put_32 (obfd, STD_R2_40R1, p), p += 4;
5d1634d7
AM
6187 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6188 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6189 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM
6190 offset += 8;
6191 bfd_put_32 (obfd, LD_R2_0R12 | PPC_LO (offset), p), p += 4;
6192 if (PPC_HA (offset + 8) != PPC_HA (offset))
ad8e1ba5 6193 bfd_put_32 (obfd, ADDIS_R12_R12 | 1, p), p += 4;
5d1634d7
AM
6194 offset += 8;
6195 bfd_put_32 (obfd, MTCTR_R11, p), p += 4;
6196 bfd_put_32 (obfd, LD_R11_0R12 | PPC_LO (offset), p), p += 4;
6197 bfd_put_32 (obfd, BCTR, p), p += 4;
6198 return p;
6199}
6200
b34976b6 6201static bfd_boolean
4ce794b7 6202ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
5d1634d7 6203{
721956f4
AM
6204 struct ppc_stub_hash_entry *stub_entry;
6205 struct ppc_branch_hash_entry *br_entry;
5d1634d7
AM
6206 struct bfd_link_info *info;
6207 struct ppc_link_hash_table *htab;
721956f4
AM
6208 bfd_byte *loc;
6209 bfd_byte *p;
6210 unsigned int indx;
411e1bfb 6211 struct plt_entry *ent;
721956f4
AM
6212 bfd_vma off;
6213 int size;
5d1634d7 6214
721956f4
AM
6215 /* Massage our args to the form they really have. */
6216 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
4ce794b7 6217 info = in_arg;
5d1634d7 6218
5d1634d7
AM
6219 htab = ppc_hash_table (info);
6220
721956f4 6221 /* Make a note of the offset within the stubs for this entry. */
eea6121a 6222 stub_entry->stub_offset = stub_entry->stub_sec->size;
97b639ba 6223 loc = stub_entry->stub_sec->contents + stub_entry->stub_offset;
721956f4 6224
4ce794b7 6225 htab->stub_count[stub_entry->stub_type - 1] += 1;
721956f4 6226 switch (stub_entry->stub_type)
5d1634d7 6227 {
721956f4 6228 case ppc_stub_long_branch:
ad8e1ba5 6229 case ppc_stub_long_branch_r2off:
721956f4
AM
6230 /* Branches are relative. This is where we are going to. */
6231 off = (stub_entry->target_value
6232 + stub_entry->target_section->output_offset
6233 + stub_entry->target_section->output_section->vma);
5d1634d7 6234
721956f4
AM
6235 /* And this is where we are coming from. */
6236 off -= (stub_entry->stub_offset
97b639ba
AM
6237 + stub_entry->stub_sec->output_offset
6238 + stub_entry->stub_sec->output_section->vma);
e86ce104 6239
ad8e1ba5
AM
6240 if (stub_entry->stub_type != ppc_stub_long_branch_r2off)
6241 size = 4;
6242 else
6243 {
6244 bfd_vma r2off;
6245
6246 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6247 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6248 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6249 loc += 4;
97b639ba 6250 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6251 loc += 4;
97b639ba 6252 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM
6253 loc += 4;
6254 off -= 12;
6255 size = 16;
6256 }
97b639ba 6257 bfd_put_32 (htab->stub_bfd, B_DOT | (off & 0x3fffffc), loc);
ad8e1ba5
AM
6258
6259 BFD_ASSERT (off + (1 << 25) < (bfd_vma) (1 << 26));
721956f4 6260 break;
e86ce104 6261
721956f4 6262 case ppc_stub_plt_branch:
ad8e1ba5 6263 case ppc_stub_plt_branch_r2off:
721956f4
AM
6264 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6265 stub_entry->root.string + 9,
b34976b6 6266 FALSE, FALSE);
721956f4
AM
6267 if (br_entry == NULL)
6268 {
6269 (*_bfd_error_handler) (_("can't find branch stub `%s'"),
6270 stub_entry->root.string + 9);
b34976b6
AM
6271 htab->stub_error = TRUE;
6272 return FALSE;
721956f4
AM
6273 }
6274
6275 off = (stub_entry->target_value
6276 + stub_entry->target_section->output_offset
6277 + stub_entry->target_section->output_section->vma);
6278
4ce794b7
AM
6279 bfd_put_64 (htab->brlt->owner, off,
6280 htab->brlt->contents + br_entry->offset);
721956f4
AM
6281
6282 if (info->shared)
6283 {
6284 /* Create a reloc for the branch lookup table entry. */
6285 Elf_Internal_Rela rela;
ad8e1ba5 6286 bfd_byte *rl;
5d1634d7 6287
721956f4 6288 rela.r_offset = (br_entry->offset
4ce794b7
AM
6289 + htab->brlt->output_offset
6290 + htab->brlt->output_section->vma);
721956f4
AM
6291 rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
6292 rela.r_addend = off;
6293
4ce794b7
AM
6294 rl = htab->relbrlt->contents;
6295 rl += htab->relbrlt->reloc_count++ * sizeof (Elf64_External_Rela);
6296 bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl);
721956f4
AM
6297 }
6298
6299 off = (br_entry->offset
4ce794b7
AM
6300 + htab->brlt->output_offset
6301 + htab->brlt->output_section->vma
6302 - elf_gp (htab->brlt->output_section->owner)
ad8e1ba5 6303 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6304
ad8e1ba5 6305 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
5d1634d7
AM
6306 {
6307 (*_bfd_error_handler)
e86ce104 6308 (_("linkage table error against `%s'"),
721956f4 6309 stub_entry->root.string);
5d1634d7 6310 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
6311 htab->stub_error = TRUE;
6312 return FALSE;
5d1634d7 6313 }
41bd81ab 6314
721956f4 6315 indx = off;
ad8e1ba5
AM
6316 if (stub_entry->stub_type != ppc_stub_plt_branch_r2off)
6317 {
97b639ba 6318 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6319 loc += 4;
97b639ba 6320 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5
AM
6321 size = 16;
6322 }
6323 else
6324 {
6325 bfd_vma r2off;
6326
6327 r2off = (htab->stub_group[stub_entry->target_section->id].toc_off
6328 - htab->stub_group[stub_entry->id_sec->id].toc_off);
97b639ba 6329 bfd_put_32 (htab->stub_bfd, STD_R2_40R1, loc);
ad8e1ba5 6330 loc += 4;
97b639ba 6331 bfd_put_32 (htab->stub_bfd, ADDIS_R12_R2 | PPC_HA (indx), loc);
ad8e1ba5 6332 loc += 4;
97b639ba 6333 bfd_put_32 (htab->stub_bfd, LD_R11_0R12 | PPC_LO (indx), loc);
ad8e1ba5 6334 loc += 4;
97b639ba 6335 bfd_put_32 (htab->stub_bfd, ADDIS_R2_R2 | PPC_HA (r2off), loc);
ad8e1ba5 6336 loc += 4;
97b639ba 6337 bfd_put_32 (htab->stub_bfd, ADDI_R2_R2 | PPC_LO (r2off), loc);
ad8e1ba5
AM
6338 size = 28;
6339 }
6340 loc += 4;
97b639ba 6341 bfd_put_32 (htab->stub_bfd, MTCTR_R11, loc);
ad8e1ba5 6342 loc += 4;
97b639ba 6343 bfd_put_32 (htab->stub_bfd, BCTR, loc);
721956f4 6344 break;
5d1634d7 6345
721956f4 6346 case ppc_stub_plt_call:
c862ae31
AM
6347 /* Do the best we can for shared libraries built without
6348 exporting ".foo" for each "foo". This can happen when symbol
6349 versioning scripts strip all bar a subset of symbols. */
6350 if (stub_entry->h->oh->root.type != bfd_link_hash_defined
6351 && stub_entry->h->oh->root.type != bfd_link_hash_defweak)
6352 {
6353 /* Point the symbol at the stub. There may be multiple stubs,
6354 we don't really care; The main thing is to make this sym
8f3bab57
AM
6355 defined somewhere. Maybe defining the symbol in the stub
6356 section is a silly idea. If we didn't do this, htab->top_id
6357 could disappear. */
c862ae31
AM
6358 stub_entry->h->oh->root.type = bfd_link_hash_defined;
6359 stub_entry->h->oh->root.u.def.section = stub_entry->stub_sec;
6360 stub_entry->h->oh->root.u.def.value = stub_entry->stub_offset;
6361 }
6362
721956f4 6363 /* Now build the stub. */
411e1bfb
AM
6364 off = (bfd_vma) -1;
6365 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6366 if (ent->addend == stub_entry->addend)
6367 {
6368 off = ent->plt.offset;
6369 break;
6370 }
721956f4
AM
6371 if (off >= (bfd_vma) -2)
6372 abort ();
6373
6374 off &= ~ (bfd_vma) 1;
4ce794b7
AM
6375 off += (htab->plt->output_offset
6376 + htab->plt->output_section->vma
6377 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6378 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6379
ad8e1ba5 6380 if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
721956f4
AM
6381 {
6382 (*_bfd_error_handler)
6383 (_("linkage table error against `%s'"),
6384 stub_entry->h->elf.root.root.string);
6385 bfd_set_error (bfd_error_bad_value);
b34976b6
AM
6386 htab->stub_error = TRUE;
6387 return FALSE;
721956f4
AM
6388 }
6389
97b639ba 6390 p = build_plt_stub (htab->stub_bfd, loc, off);
721956f4
AM
6391 size = p - loc;
6392 break;
6393
6394 default:
6395 BFD_FAIL ();
b34976b6 6396 return FALSE;
721956f4
AM
6397 }
6398
eea6121a 6399 stub_entry->stub_sec->size += size;
97b639ba
AM
6400
6401 if (htab->emit_stub_syms
6402 && !(stub_entry->stub_type == ppc_stub_plt_call
6403 && stub_entry->h->oh->root.type == bfd_link_hash_defined
6404 && stub_entry->h->oh->root.u.def.section == stub_entry->stub_sec
6405 && stub_entry->h->oh->root.u.def.value == stub_entry->stub_offset))
6406 {
6407 struct elf_link_hash_entry *h;
6408 h = elf_link_hash_lookup (&htab->elf, stub_entry->root.string,
6409 TRUE, FALSE, FALSE);
6410 if (h == NULL)
6411 return FALSE;
6412 if (h->root.type == bfd_link_hash_new)
6413 {
6414 h->root.type = bfd_link_hash_defined;
6415 h->root.u.def.section = stub_entry->stub_sec;
6416 h->root.u.def.value = stub_entry->stub_offset;
6417 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
6418 | ELF_LINK_HASH_DEF_REGULAR
6419 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
6420 | ELF_LINK_FORCED_LOCAL);
6421 }
6422 }
6423
b34976b6 6424 return TRUE;
721956f4
AM
6425}
6426
6427/* As above, but don't actually build the stub. Just bump offset so
6428 we know stub section sizes, and select plt_branch stubs where
6429 long_branch stubs won't do. */
6430
b34976b6 6431static bfd_boolean
4ce794b7 6432ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
721956f4
AM
6433{
6434 struct ppc_stub_hash_entry *stub_entry;
63bc6f6c 6435 struct bfd_link_info *info;
721956f4
AM
6436 struct ppc_link_hash_table *htab;
6437 bfd_vma off;
6438 int size;
6439
6440 /* Massage our args to the form they really have. */
6441 stub_entry = (struct ppc_stub_hash_entry *) gen_entry;
63bc6f6c
AM
6442 info = in_arg;
6443
6444 htab = ppc_hash_table (info);
721956f4
AM
6445
6446 if (stub_entry->stub_type == ppc_stub_plt_call)
6447 {
411e1bfb 6448 struct plt_entry *ent;
58ac9f71 6449 off = (bfd_vma) -1;
411e1bfb
AM
6450 for (ent = stub_entry->h->elf.plt.plist; ent != NULL; ent = ent->next)
6451 if (ent->addend == stub_entry->addend)
6452 {
6453 off = ent->plt.offset & ~(bfd_vma) 1;
6454 break;
6455 }
58ac9f71 6456 if (off >= (bfd_vma) -2)
411e1bfb 6457 abort ();
4ce794b7
AM
6458 off += (htab->plt->output_offset
6459 + htab->plt->output_section->vma
6460 - elf_gp (htab->plt->output_section->owner)
ad8e1ba5 6461 - htab->stub_group[stub_entry->id_sec->id].toc_off);
721956f4 6462
ad8e1ba5 6463 size = PLT_CALL_STUB_SIZE;
4ce794b7 6464 if (PPC_HA (off + 16) != PPC_HA (off))
721956f4
AM
6465 size += 4;
6466 }
6467 else
6468 {
ad8e1ba5
AM
6469 /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off
6470 variants. */
721956f4
AM
6471 off = (stub_entry->target_value
6472 + stub_entry->target_section->output_offset
6473 + stub_entry->target_section->output_section->vma);
eea6121a 6474 off -= (stub_entry->stub_sec->size
721956f4
AM
6475 + stub_entry->stub_sec->output_offset
6476 + stub_entry->stub_sec->output_section->vma);
6477
ad8e1ba5
AM
6478 /* Reset the stub type from the plt variant in case we now
6479 can reach with a shorter stub. */
6480 if (stub_entry->stub_type >= ppc_stub_plt_branch)
6481 stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch;
6482
6483 size = 4;
6484 if (stub_entry->stub_type == ppc_stub_long_branch_r2off)
6485 {
6486 off -= 12;
6487 size = 16;
6488 }
6489
6490 /* If the branch offset if too big, use a ppc_stub_plt_branch. */
721956f4
AM
6491 if (off + (1 << 25) >= (bfd_vma) (1 << 26))
6492 {
6493 struct ppc_branch_hash_entry *br_entry;
6494
6495 br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table,
6496 stub_entry->root.string + 9,
b34976b6 6497 TRUE, FALSE);
721956f4
AM
6498 if (br_entry == NULL)
6499 {
6500 (*_bfd_error_handler) (_("can't build branch stub `%s'"),
6501 stub_entry->root.string + 9);
b34976b6
AM
6502 htab->stub_error = TRUE;
6503 return FALSE;
721956f4
AM
6504 }
6505
6506 if (br_entry->iter != htab->stub_iteration)
6507 {
6508 br_entry->iter = htab->stub_iteration;
eea6121a
AM
6509 br_entry->offset = htab->brlt->size;
6510 htab->brlt->size += 8;
63bc6f6c
AM
6511
6512 if (info->shared)
eea6121a 6513 htab->relbrlt->size += sizeof (Elf64_External_Rela);
721956f4 6514 }
ad8e1ba5
AM
6515
6516 stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch;
721956f4 6517 size = 16;
ad8e1ba5
AM
6518 if (stub_entry->stub_type != ppc_stub_plt_branch)
6519 size = 28;
721956f4
AM
6520 }
6521 }
6522
eea6121a 6523 stub_entry->stub_sec->size += size;
b34976b6 6524 return TRUE;
721956f4
AM
6525}
6526
6527/* Set up various things so that we can make a list of input sections
6528 for each output section included in the link. Returns -1 on error,
cedb70c5 6529 0 when no stubs will be needed, and 1 on success. */
721956f4
AM
6530
6531int
4ce794b7 6532ppc64_elf_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
721956f4
AM
6533{
6534 bfd *input_bfd;
734b6cf9 6535 int top_id, top_index, id;
721956f4 6536 asection *section;
734b6cf9 6537 asection **input_list;
721956f4
AM
6538 bfd_size_type amt;
6539 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6540
4ce794b7 6541 if (htab->brlt == NULL)
721956f4
AM
6542 return 0;
6543
1e2f5b6e 6544 /* Find the top input section id. */
3d6f9012 6545 for (input_bfd = info->input_bfds, top_id = 3;
721956f4
AM
6546 input_bfd != NULL;
6547 input_bfd = input_bfd->link_next)
6548 {
721956f4
AM
6549 for (section = input_bfd->sections;
6550 section != NULL;
6551 section = section->next)
6552 {
6553 if (top_id < section->id)
6554 top_id = section->id;
6555 }
6556 }
721956f4 6557
8f3bab57 6558 htab->top_id = top_id;
721956f4 6559 amt = sizeof (struct map_stub) * (top_id + 1);
4ce794b7 6560 htab->stub_group = bfd_zmalloc (amt);
721956f4
AM
6561 if (htab->stub_group == NULL)
6562 return -1;
6563
3d6f9012
AM
6564 /* Set toc_off for com, und, abs and ind sections. */
6565 for (id = 0; id < 3; id++)
6566 htab->stub_group[id].toc_off = TOC_BASE_OFF;
721956f4 6567
3d6f9012 6568 elf_gp (output_bfd) = htab->toc_curr = ppc64_elf_toc (output_bfd);
734b6cf9
AM
6569
6570 /* We can't use output_bfd->section_count here to find the top output
6571 section index as some sections may have been removed, and
6572 _bfd_strip_section_from_output doesn't renumber the indices. */
6573 for (section = output_bfd->sections, top_index = 0;
6574 section != NULL;
6575 section = section->next)
6576 {
6577 if (top_index < section->index)
6578 top_index = section->index;
6579 }
6580
6581 htab->top_index = top_index;
6582 amt = sizeof (asection *) * (top_index + 1);
4ce794b7 6583 input_list = bfd_zmalloc (amt);
734b6cf9
AM
6584 htab->input_list = input_list;
6585 if (input_list == NULL)
6586 return -1;
6587
721956f4
AM
6588 return 1;
6589}
6590
e717da7e
AM
6591/* The linker repeatedly calls this function for each TOC input section
6592 and linker generated GOT section. Group input bfds such that the toc
6593 within a group is less than 64k in size. Will break with cute linker
6594 scripts that play games with dot in the output toc section. */
ad8e1ba5
AM
6595
6596void
4ce794b7 6597ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec)
ad8e1ba5
AM
6598{
6599 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6600
6601 if (!htab->no_multi_toc)
6602 {
6603 bfd_vma addr = isec->output_offset + isec->output_section->vma;
6604 bfd_vma off = addr - htab->toc_curr;
eea6121a 6605 if (off + isec->size > 0x10000)
ad8e1ba5
AM
6606 {
6607 htab->toc_curr = addr;
6608 htab->multi_toc_needed = 1;
6609 }
6610 elf_gp (isec->owner) = (htab->toc_curr
6611 - elf_gp (isec->output_section->owner)
6612 + TOC_BASE_OFF);
6613 }
6614}
6615
6616/* Called after the last call to the above function. */
6617
6618void
4ce794b7
AM
6619ppc64_elf_reinit_toc (bfd *output_bfd ATTRIBUTE_UNUSED,
6620 struct bfd_link_info *info)
ad8e1ba5
AM
6621{
6622 struct ppc_link_hash_table *htab = ppc_hash_table (info);
ad8e1ba5
AM
6623
6624 /* toc_curr tracks the TOC offset used for code sections below in
6625 ppc64_elf_next_input_section. Start off at 0x8000. */
3d6f9012 6626 htab->toc_curr = TOC_BASE_OFF;
ad8e1ba5
AM
6627}
6628
9b5ecbd0
AM
6629/* No toc references were found in ISEC. If the code in ISEC makes no
6630 calls, then there's no need to use toc adjusting stubs when branching
6631 into ISEC. Actually, indirect calls from ISEC are OK as they will
6632 load r2. */
6633
6634static int
4ce794b7 6635toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec)
9b5ecbd0
AM
6636{
6637 bfd_byte *contents;
6638 bfd_size_type i;
6639 int ret;
6640 int branch_ok;
6641
772119ce
AM
6642 /* We know none of our code bearing sections will need toc stubs. */
6643 if ((isec->flags & SEC_LINKER_CREATED) != 0)
6644 return 0;
6645
eea6121a 6646 if (isec->size == 0)
082c50f8
AM
6647 return 0;
6648
9b5ecbd0
AM
6649 /* Hack for linux kernel. .fixup contains branches, but only back to
6650 the function that hit an exception. */
6651 branch_ok = strcmp (isec->name, ".fixup") == 0;
6652
6653 contents = elf_section_data (isec)->this_hdr.contents;
6654 if (contents == NULL)
6655 {
eea6121a 6656 if (!bfd_malloc_and_get_section (isec->owner, isec, &contents))
9b5ecbd0 6657 {
eea6121a
AM
6658 if (contents != NULL)
6659 free (contents);
9b5ecbd0
AM
6660 return -1;
6661 }
6662 if (info->keep_memory)
6663 elf_section_data (isec)->this_hdr.contents = contents;
6664 }
6665
6666 /* Code scan, because we don't necessarily have relocs on calls to
6667 static functions. */
6668 ret = 0;
eea6121a 6669 for (i = 0; i < isec->size; i += 4)
9b5ecbd0
AM
6670 {
6671 unsigned long insn = bfd_get_32 (isec->owner, contents + i);
6672 /* Is this a branch? */
772119ce 6673 if ((insn & (0x3f << 26)) == (18 << 26)
9b5ecbd0
AM
6674 /* If branch and link, it's a function call. */
6675 && ((insn & 1) != 0
6676 /* Sibling calls use a plain branch. I don't know a way
6677 of deciding whether a branch is really a sibling call. */
6678 || !branch_ok))
6679 {
6680 ret = 1;
6681 break;
6682 }
6683 }
6684
6685 if (elf_section_data (isec)->this_hdr.contents != contents)
6686 free (contents);
6687 return ret;
6688}
6689
721956f4
AM
6690/* The linker repeatedly calls this function for each input section,
6691 in the order that input sections are linked into output sections.
6692 Build lists of input sections to determine groupings between which
6693 we may insert linker stubs. */
6694
9b5ecbd0 6695bfd_boolean
4ce794b7 6696ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec)
721956f4
AM
6697{
6698 struct ppc_link_hash_table *htab = ppc_hash_table (info);
9b5ecbd0 6699 int ret;
721956f4 6700
734b6cf9
AM
6701 if ((isec->output_section->flags & SEC_CODE) != 0
6702 && isec->output_section->index <= htab->top_index)
721956f4 6703 {
734b6cf9 6704 asection **list = htab->input_list + isec->output_section->index;
3d6f9012 6705 /* Steal the link_sec pointer for our list. */
721956f4 6706#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
3d6f9012
AM
6707 /* This happens to make the list in reverse order,
6708 which is what we want. */
734b6cf9
AM
6709 PREV_SEC (isec) = *list;
6710 *list = isec;
721956f4 6711 }
ad8e1ba5
AM
6712
6713 /* If a code section has a function that uses the TOC then we need
6714 to use the right TOC (obviously). Also, make sure that .opd gets
ee87f2da
AM
6715 the correct TOC value for R_PPC64_TOC relocs that don't have or
6716 can't find their function symbol (shouldn't ever happen now). */
ad8e1ba5 6717 if (isec->has_gp_reloc || (isec->flags & SEC_CODE) == 0)
9b5ecbd0
AM
6718 {
6719 if (elf_gp (isec->owner) != 0)
6720 htab->toc_curr = elf_gp (isec->owner);
6721 }
6722 else if ((ret = toc_adjusting_stub_needed (info, isec)) < 0)
6723 return FALSE;
6724 else
6725 isec->has_gp_reloc = ret;
ad8e1ba5
AM
6726
6727 /* Functions that don't use the TOC can belong in any TOC group.
6728 Use the last TOC base. This happens to make _init and _fini
6729 pasting work. */
6730 htab->stub_group[isec->id].toc_off = htab->toc_curr;
9b5ecbd0 6731 return TRUE;
721956f4
AM
6732}
6733
6734/* See whether we can group stub sections together. Grouping stub
6735 sections may result in fewer stubs. More importantly, we need to
6736 put all .init* and .fini* stubs at the beginning of the .init or
6737 .fini output sections respectively, because glibc splits the
6738 _init and _fini functions into multiple parts. Putting a stub in
6739 the middle of a function is not a good idea. */
6740
6741static void
4ce794b7
AM
6742group_sections (struct ppc_link_hash_table *htab,
6743 bfd_size_type stub_group_size,
6744 bfd_boolean stubs_always_before_branch)
721956f4 6745{
734b6cf9
AM
6746 asection **list = htab->input_list + htab->top_index;
6747 do
721956f4 6748 {
734b6cf9
AM
6749 asection *tail = *list;
6750 while (tail != NULL)
721956f4 6751 {
734b6cf9
AM
6752 asection *curr;
6753 asection *prev;
6754 bfd_size_type total;
6755 bfd_boolean big_sec;
6756 bfd_vma curr_toc;
6757
6758 curr = tail;
eea6121a 6759 total = tail->size;
734b6cf9
AM
6760 big_sec = total >= stub_group_size;
6761 curr_toc = htab->stub_group[tail->id].toc_off;
6762
6763 while ((prev = PREV_SEC (curr)) != NULL
6764 && ((total += curr->output_offset - prev->output_offset)
ad8e1ba5
AM
6765 < stub_group_size)
6766 && htab->stub_group[prev->id].toc_off == curr_toc)
734b6cf9
AM
6767 curr = prev;
6768
6769 /* OK, the size from the start of CURR to the end is less
6770 than stub_group_size and thus can be handled by one stub
6771 section. (or the tail section is itself larger than
6772 stub_group_size, in which case we may be toast.) We
6773 should really be keeping track of the total size of stubs
6774 added here, as stubs contribute to the final output
6775 section size. That's a little tricky, and this way will
6776 only break if stubs added make the total size more than
6777 2^25, ie. for the default stub_group_size, if stubs total
6778 more than 2097152 bytes, or nearly 75000 plt call stubs. */
6779 do
721956f4
AM
6780 {
6781 prev = PREV_SEC (tail);
734b6cf9 6782 /* Set up this stub group. */
721956f4
AM
6783 htab->stub_group[tail->id].link_sec = curr;
6784 }
734b6cf9
AM
6785 while (tail != curr && (tail = prev) != NULL);
6786
6787 /* But wait, there's more! Input sections up to stub_group_size
6788 bytes before the stub section can be handled by it too.
6789 Don't do this if we have a really large section after the
6790 stubs, as adding more stubs increases the chance that
6791 branches may not reach into the stub section. */
6792 if (!stubs_always_before_branch && !big_sec)
6793 {
6794 total = 0;
6795 while (prev != NULL
6796 && ((total += tail->output_offset - prev->output_offset)
6797 < stub_group_size)
6798 && htab->stub_group[prev->id].toc_off == curr_toc)
6799 {
6800 tail = prev;
6801 prev = PREV_SEC (tail);
6802 htab->stub_group[tail->id].link_sec = curr;
6803 }
6804 }
6805 tail = prev;
721956f4
AM
6806 }
6807 }
734b6cf9
AM
6808 while (list-- != htab->input_list);
6809 free (htab->input_list);
721956f4
AM
6810#undef PREV_SEC
6811}
6812
721956f4
AM
6813/* Determine and set the size of the stub section for a final link.
6814
6815 The basic idea here is to examine all the relocations looking for
6816 PC-relative calls to a target that is unreachable with a "bl"
6817 instruction. */
6818
b34976b6 6819bfd_boolean
4ce794b7 6820ppc64_elf_size_stubs (bfd *output_bfd,
4ce794b7
AM
6821 struct bfd_link_info *info,
6822 bfd_signed_vma group_size,
6823 asection *(*add_stub_section) (const char *, asection *),
6824 void (*layout_sections_again) (void))
721956f4
AM
6825{
6826 bfd_size_type stub_group_size;
b34976b6 6827 bfd_boolean stubs_always_before_branch;
721956f4
AM
6828 struct ppc_link_hash_table *htab = ppc_hash_table (info);
6829
6830 /* Stash our params away. */
721956f4
AM
6831 htab->add_stub_section = add_stub_section;
6832 htab->layout_sections_again = layout_sections_again;
6833 stubs_always_before_branch = group_size < 0;
6834 if (group_size < 0)
6835 stub_group_size = -group_size;
6836 else
6837 stub_group_size = group_size;
6838 if (stub_group_size == 1)
6839 {
6840 /* Default values. */
58ac9f71
AM
6841 if (stubs_always_before_branch)
6842 {
6843 stub_group_size = 0x1e00000;
6844 if (htab->has_14bit_branch)
6845 stub_group_size = 0x7800;
6846 }
6847 else
6848 {
6849 stub_group_size = 0x1c00000;
6850 if (htab->has_14bit_branch)
6851 stub_group_size = 0x7000;
6852 }
721956f4
AM
6853 }
6854
6855 group_sections (htab, stub_group_size, stubs_always_before_branch);
6856
721956f4
AM
6857 while (1)
6858 {
6859 bfd *input_bfd;
6860 unsigned int bfd_indx;
6861 asection *stub_sec;
b34976b6 6862 bfd_boolean stub_changed;
721956f4
AM
6863
6864 htab->stub_iteration += 1;
b34976b6 6865 stub_changed = FALSE;
721956f4
AM
6866
6867 for (input_bfd = info->input_bfds, bfd_indx = 0;
6868 input_bfd != NULL;
6869 input_bfd = input_bfd->link_next, bfd_indx++)
6870 {
6871 Elf_Internal_Shdr *symtab_hdr;
6872 asection *section;
6cdc0ccc 6873 Elf_Internal_Sym *local_syms = NULL;
721956f4
AM
6874
6875 /* We'll need the symbol table in a second. */
6876 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
6877 if (symtab_hdr->sh_info == 0)
6878 continue;
6879
721956f4
AM
6880 /* Walk over each section attached to the input bfd. */
6881 for (section = input_bfd->sections;
6882 section != NULL;
6883 section = section->next)
6884 {
721956f4 6885 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
721956f4
AM
6886
6887 /* If there aren't any relocs, then there's nothing more
6888 to do. */
6889 if ((section->flags & SEC_RELOC) == 0
6890 || section->reloc_count == 0)
6891 continue;
6892
6893 /* If this section is a link-once section that will be
6894 discarded, then don't create any stubs. */
6895 if (section->output_section == NULL
6896 || section->output_section->owner != output_bfd)
6897 continue;
6898
1e2f5b6e
AM
6899 /* Get the relocs. */
6900 internal_relocs
4ce794b7 6901 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 6902 info->keep_memory);
721956f4 6903 if (internal_relocs == NULL)
1e2f5b6e 6904 goto error_ret_free_local;
721956f4
AM
6905
6906 /* Now examine each relocation. */
6907 irela = internal_relocs;
6908 irelaend = irela + section->reloc_count;
6909 for (; irela < irelaend; irela++)
6910 {
4ce794b7
AM
6911 enum elf_ppc64_reloc_type r_type;
6912 unsigned int r_indx;
721956f4
AM
6913 enum ppc_stub_type stub_type;
6914 struct ppc_stub_hash_entry *stub_entry;
6915 asection *sym_sec;
6916 bfd_vma sym_value;
6917 bfd_vma destination;
6918 struct ppc_link_hash_entry *hash;
411e1bfb
AM
6919 struct elf_link_hash_entry *h;
6920 Elf_Internal_Sym *sym;
721956f4
AM
6921 char *stub_name;
6922 const asection *id_sec;
6923
6924 r_type = ELF64_R_TYPE (irela->r_info);
6925 r_indx = ELF64_R_SYM (irela->r_info);
6926
4ce794b7 6927 if (r_type >= R_PPC64_max)
721956f4
AM
6928 {
6929 bfd_set_error (bfd_error_bad_value);
6cdc0ccc 6930 goto error_ret_free_internal;
721956f4
AM
6931 }
6932
6933 /* Only look for stubs on branch instructions. */
4ce794b7
AM
6934 if (r_type != R_PPC64_REL24
6935 && r_type != R_PPC64_REL14
6936 && r_type != R_PPC64_REL14_BRTAKEN
6937 && r_type != R_PPC64_REL14_BRNTAKEN)
721956f4
AM
6938 continue;
6939
6940 /* Now determine the call target, its name, value,
6941 section. */
721956f4 6942 destination = 0;
411e1bfb
AM
6943 if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
6944 r_indx, input_bfd))
6945 goto error_ret_free_internal;
6946 hash = (struct ppc_link_hash_entry *) h;
6947
6948 if (hash == NULL)
721956f4
AM
6949 {
6950 /* It's a local symbol. */
411e1bfb 6951 sym_value = sym->st_value;
721956f4
AM
6952 destination = (sym_value + irela->r_addend
6953 + sym_sec->output_offset
6954 + sym_sec->output_section->vma);
6955 }
6956 else
6957 {
6958 /* It's an external symbol. */
411e1bfb 6959 sym_value = 0;
721956f4
AM
6960 if (hash->elf.root.type == bfd_link_hash_defined
6961 || hash->elf.root.type == bfd_link_hash_defweak)
6962 {
721956f4
AM
6963 sym_value = hash->elf.root.u.def.value;
6964 if (sym_sec->output_section != NULL)
6965 destination = (sym_value + irela->r_addend
6966 + sym_sec->output_offset
6967 + sym_sec->output_section->vma);
6968 }
6969 else if (hash->elf.root.type == bfd_link_hash_undefweak)
6970 ;
6971 else if (hash->elf.root.type == bfd_link_hash_undefined)
6972 ;
6973 else
6974 {
6975 bfd_set_error (bfd_error_bad_value);
6976 goto error_ret_free_internal;
6977 }
6978 }
6979
6980 /* Determine what (if any) linker stub is needed. */
6981 stub_type = ppc_type_of_stub (section, irela, &hash,
6982 destination);
ad8e1ba5
AM
6983
6984 if (stub_type != ppc_stub_plt_call)
6985 {
6986 /* Check whether we need a TOC adjusting stub.
6987 Since the linker pastes together pieces from
6988 different object files when creating the
6989 _init and _fini functions, it may be that a
6990 call to what looks like a local sym is in
6991 fact a call needing a TOC adjustment. */
6992 if (sym_sec != NULL
6993 && sym_sec->output_section != NULL
6994 && (htab->stub_group[sym_sec->id].toc_off
9b5ecbd0
AM
6995 != htab->stub_group[section->id].toc_off)
6996 && sym_sec->has_gp_reloc
6997 && section->has_gp_reloc)
ad8e1ba5
AM
6998 stub_type = ppc_stub_long_branch_r2off;
6999 }
7000
721956f4
AM
7001 if (stub_type == ppc_stub_none)
7002 continue;
7003
411e1bfb
AM
7004 /* __tls_get_addr calls might be eliminated. */
7005 if (stub_type != ppc_stub_plt_call
7006 && hash != NULL
7007 && &hash->elf == htab->tls_get_addr
7008 && section->has_tls_reloc
7009 && irela != internal_relocs)
7010 {
7011 /* Get tls info. */
e7b938ca 7012 char *tls_mask;
411e1bfb 7013
0d4792f7 7014 if (!get_tls_mask (&tls_mask, NULL, &local_syms,
411e1bfb
AM
7015 irela - 1, input_bfd))
7016 goto error_ret_free_internal;
e7b938ca 7017 if (*tls_mask != 0)
411e1bfb
AM
7018 continue;
7019 }
7020
721956f4
AM
7021 /* Support for grouping stub sections. */
7022 id_sec = htab->stub_group[section->id].link_sec;
7023
7024 /* Get the name of this stub. */
7025 stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela);
7026 if (!stub_name)
7027 goto error_ret_free_internal;
7028
7029 stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table,
b34976b6 7030 stub_name, FALSE, FALSE);
721956f4
AM
7031 if (stub_entry != NULL)
7032 {
7033 /* The proper stub has already been created. */
7034 free (stub_name);
7035 continue;
7036 }
7037
7038 stub_entry = ppc_add_stub (stub_name, section, htab);
7039 if (stub_entry == NULL)
7040 {
7041 free (stub_name);
6cdc0ccc
AM
7042 error_ret_free_internal:
7043 if (elf_section_data (section)->relocs == NULL)
7044 free (internal_relocs);
7045 error_ret_free_local:
7046 if (local_syms != NULL
7047 && (symtab_hdr->contents
7048 != (unsigned char *) local_syms))
7049 free (local_syms);
b34976b6 7050 return FALSE;
721956f4
AM
7051 }
7052
ad8e1ba5 7053 stub_entry->stub_type = stub_type;
721956f4
AM
7054 stub_entry->target_value = sym_value;
7055 stub_entry->target_section = sym_sec;
721956f4 7056 stub_entry->h = hash;
411e1bfb 7057 stub_entry->addend = irela->r_addend;
b34976b6 7058 stub_changed = TRUE;
721956f4
AM
7059 }
7060
7061 /* We're done with the internal relocs, free them. */
6cdc0ccc 7062 if (elf_section_data (section)->relocs != internal_relocs)
1e2f5b6e 7063 free (internal_relocs);
721956f4 7064 }
6cdc0ccc
AM
7065
7066 if (local_syms != NULL
7067 && symtab_hdr->contents != (unsigned char *) local_syms)
7068 {
7069 if (!info->keep_memory)
7070 free (local_syms);
7071 else
7072 symtab_hdr->contents = (unsigned char *) local_syms;
7073 }
721956f4
AM
7074 }
7075
7076 if (!stub_changed)
7077 break;
7078
7079 /* OK, we've added some stubs. Find out the new size of the
7080 stub sections. */
7081 for (stub_sec = htab->stub_bfd->sections;
7082 stub_sec != NULL;
7083 stub_sec = stub_sec->next)
e717da7e 7084 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
eea6121a
AM
7085 stub_sec->size = 0;
7086
7087 htab->brlt->size = 0;
63bc6f6c 7088 if (info->shared)
eea6121a 7089 htab->relbrlt->size = 0;
721956f4 7090
63bc6f6c 7091 bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info);
721956f4
AM
7092
7093 /* Ask the linker to do its stuff. */
7094 (*htab->layout_sections_again) ();
7095 }
7096
afbe61cf
AM
7097 /* It would be nice to strip .branch_lt from the output if the
7098 section is empty, but it's too late. If we strip sections here,
7099 the dynamic symbol table is corrupted since the section symbol
7100 for the stripped section isn't written. */
721956f4 7101
b34976b6 7102 return TRUE;
721956f4
AM
7103}
7104
7105/* Called after we have determined section placement. If sections
805fc799 7106 move, we'll be called again. Provide a value for TOCstart. */
721956f4 7107
805fc799 7108bfd_vma
4ce794b7 7109ppc64_elf_toc (bfd *obfd)
721956f4 7110{
805fc799
AM
7111 asection *s;
7112 bfd_vma TOCstart;
721956f4 7113
805fc799
AM
7114 /* The TOC consists of sections .got, .toc, .tocbss, .plt in that
7115 order. The TOC starts where the first of these sections starts. */
7116 s = bfd_get_section_by_name (obfd, ".got");
7117 if (s == NULL)
7118 s = bfd_get_section_by_name (obfd, ".toc");
7119 if (s == NULL)
7120 s = bfd_get_section_by_name (obfd, ".tocbss");
7121 if (s == NULL)
7122 s = bfd_get_section_by_name (obfd, ".plt");
7123 if (s == NULL)
7124 {
7125 /* This may happen for
7126 o references to TOC base (SYM@toc / TOC[tc0]) without a
7127 .toc directive
7128 o bad linker script
7129 o --gc-sections and empty TOC sections
7130
7131 FIXME: Warn user? */
7132
7133 /* Look for a likely section. We probably won't even be
7134 using TOCstart. */
7135 for (s = obfd->sections; s != NULL; s = s->next)
7136 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY))
7137 == (SEC_ALLOC | SEC_SMALL_DATA))
7138 break;
721956f4 7139 if (s == NULL)
805fc799
AM
7140 for (s = obfd->sections; s != NULL; s = s->next)
7141 if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA))
7142 == (SEC_ALLOC | SEC_SMALL_DATA))
7143 break;
721956f4 7144 if (s == NULL)
805fc799
AM
7145 for (s = obfd->sections; s != NULL; s = s->next)
7146 if ((s->flags & (SEC_ALLOC | SEC_READONLY)) == SEC_ALLOC)
7147 break;
721956f4 7148 if (s == NULL)
805fc799
AM
7149 for (s = obfd->sections; s != NULL; s = s->next)
7150 if ((s->flags & SEC_ALLOC) == SEC_ALLOC)
7151 break;
7152 }
721956f4 7153
805fc799
AM
7154 TOCstart = 0;
7155 if (s != NULL)
7156 TOCstart = s->output_section->vma + s->output_offset;
721956f4 7157
805fc799 7158 return TOCstart;
721956f4
AM
7159}
7160
7161/* Build all the stubs associated with the current output file.
7162 The stubs are kept in a hash table attached to the main linker
7163 hash table. This function is called via gldelf64ppc_finish. */
7164
b34976b6 7165bfd_boolean
4ce794b7
AM
7166ppc64_elf_build_stubs (bfd_boolean emit_stub_syms,
7167 struct bfd_link_info *info,
7168 char **stats)
5d1634d7
AM
7169{
7170 struct ppc_link_hash_table *htab = ppc_hash_table (info);
721956f4 7171 asection *stub_sec;
5d1634d7 7172 bfd_byte *p;
e717da7e 7173 int stub_sec_count = 0;
5d1634d7 7174
ad8e1ba5 7175 htab->emit_stub_syms = emit_stub_syms;
eea6121a
AM
7176
7177 /* Allocate memory to hold the linker stubs. */
721956f4
AM
7178 for (stub_sec = htab->stub_bfd->sections;
7179 stub_sec != NULL;
7180 stub_sec = stub_sec->next)
eea6121a
AM
7181 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
7182 && stub_sec->size != 0)
e717da7e 7183 {
eea6121a
AM
7184 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
7185 if (stub_sec->contents == NULL)
7186 return FALSE;
7187 /* We want to check that built size is the same as calculated
7188 size. rawsize is a convenient location to use. */
7189 stub_sec->rawsize = stub_sec->size;
7190 stub_sec->size = 0;
e717da7e 7191 }
5d1634d7 7192
4ce794b7 7193 if (htab->plt != NULL)
5d1634d7 7194 {
9f951329 7195 unsigned int indx;
ad8e1ba5 7196 bfd_vma plt0;
9f951329 7197
721956f4 7198 /* Build the .glink plt call stub. */
4ce794b7
AM
7199 plt0 = (htab->plt->output_section->vma
7200 + htab->plt->output_offset
7201 - (htab->glink->output_section->vma
7202 + htab->glink->output_offset
ad8e1ba5
AM
7203 + GLINK_CALL_STUB_SIZE));
7204 if (plt0 + 0x80008000 > 0xffffffff)
721956f4 7205 {
ad8e1ba5
AM
7206 (*_bfd_error_handler) (_(".glink and .plt too far apart"));
7207 bfd_set_error (bfd_error_bad_value);
7208 return FALSE;
721956f4 7209 }
721956f4 7210
97b639ba
AM
7211 if (htab->emit_stub_syms)
7212 {
7213 struct elf_link_hash_entry *h;
7214 h = elf_link_hash_lookup (&htab->elf, "__glink", TRUE, FALSE, FALSE);
7215 if (h == NULL)
7216 return FALSE;
7217 if (h->root.type == bfd_link_hash_new)
7218 {
7219 h->root.type = bfd_link_hash_defined;
7220 h->root.u.def.section = htab->glink;
7221 h->root.u.def.value = 0;
7222 h->elf_link_hash_flags = (ELF_LINK_HASH_REF_REGULAR
7223 | ELF_LINK_HASH_DEF_REGULAR
7224 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
7225 | ELF_LINK_FORCED_LOCAL);
7226 }
7227 }
4ce794b7
AM
7228 p = htab->glink->contents;
7229 bfd_put_32 (htab->glink->owner, MFCTR_R12, p);
ad8e1ba5 7230 p += 4;
4ce794b7 7231 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_3, p);
ad8e1ba5 7232 p += 4;
4ce794b7 7233 bfd_put_32 (htab->glink->owner, ADDIC_R2_R0_32K, p);
ad8e1ba5 7234 p += 4;
4ce794b7 7235 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7236 p += 4;
4ce794b7 7237 bfd_put_32 (htab->glink->owner, SRADI_R2_R2_63, p);
ad8e1ba5 7238 p += 4;
4ce794b7 7239 bfd_put_32 (htab->glink->owner, SLDI_R11_R0_2, p);
ad8e1ba5 7240 p += 4;
4ce794b7 7241 bfd_put_32 (htab->glink->owner, AND_R2_R2_R11, p);
ad8e1ba5 7242 p += 4;
4ce794b7 7243 bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p);
ad8e1ba5 7244 p += 4;
4ce794b7 7245 bfd_put_32 (htab->glink->owner, ADD_R12_R12_R2, p);
ad8e1ba5 7246 p += 4;
4ce794b7 7247 bfd_put_32 (htab->glink->owner, ADDIS_R12_R12 | PPC_HA (plt0), p);
ad8e1ba5 7248 p += 4;
4ce794b7 7249 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | PPC_LO (plt0), p);
ad8e1ba5 7250 p += 4;
4ce794b7 7251 bfd_put_32 (htab->glink->owner, ADDI_R12_R12 | PPC_LO (plt0), p);
ad8e1ba5 7252 p += 4;
4ce794b7 7253 bfd_put_32 (htab->glink->owner, LD_R2_0R12 | 8, p);
ad8e1ba5 7254 p += 4;
4ce794b7 7255 bfd_put_32 (htab->glink->owner, MTCTR_R11, p);
ad8e1ba5 7256 p += 4;
4ce794b7 7257 bfd_put_32 (htab->glink->owner, LD_R11_0R12 | 16, p);
ad8e1ba5 7258 p += 4;
4ce794b7 7259 bfd_put_32 (htab->glink->owner, BCTR, p);
ad8e1ba5
AM
7260 p += 4;
7261
9f951329
AM
7262 /* Build the .glink lazy link call stubs. */
7263 indx = 0;
eea6121a 7264 while (p < htab->glink->contents + htab->glink->size)
9f951329
AM
7265 {
7266 if (indx < 0x8000)
7267 {
4ce794b7 7268 bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p);
9f951329
AM
7269 p += 4;
7270 }
7271 else
7272 {
4ce794b7 7273 bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p);
9f951329 7274 p += 4;
4ce794b7 7275 bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), p);
9f951329
AM
7276 p += 4;
7277 }
4ce794b7
AM
7278 bfd_put_32 (htab->glink->owner,
7279 B_DOT | ((htab->glink->contents - p) & 0x3fffffc), p);
a16d5acb 7280 indx++;
9f951329
AM
7281 p += 4;
7282 }
eea6121a 7283 htab->glink->rawsize = p - htab->glink->contents;
5d1634d7 7284 }
5d1634d7 7285
eea6121a 7286 if (htab->brlt->size != 0)
721956f4 7287 {
4ce794b7 7288 htab->brlt->contents = bfd_zalloc (htab->brlt->owner,
eea6121a 7289 htab->brlt->size);
4ce794b7 7290 if (htab->brlt->contents == NULL)
b34976b6 7291 return FALSE;
721956f4 7292 }
eea6121a 7293 if (info->shared && htab->relbrlt->size != 0)
63bc6f6c
AM
7294 {
7295 htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner,
eea6121a 7296 htab->relbrlt->size);
63bc6f6c
AM
7297 if (htab->relbrlt->contents == NULL)
7298 return FALSE;
7299 }
5d1634d7 7300
721956f4
AM
7301 /* Build the stubs as directed by the stub hash table. */
7302 bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info);
5d1634d7 7303
721956f4
AM
7304 for (stub_sec = htab->stub_bfd->sections;
7305 stub_sec != NULL;
7306 stub_sec = stub_sec->next)
e717da7e
AM
7307 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
7308 {
7309 stub_sec_count += 1;
eea6121a 7310 if (stub_sec->rawsize != stub_sec->size)
e717da7e
AM
7311 break;
7312 }
5d1634d7 7313
721956f4 7314 if (stub_sec != NULL
eea6121a 7315 || htab->glink->rawsize != htab->glink->size)
5d1634d7 7316 {
b34976b6 7317 htab->stub_error = TRUE;
721956f4 7318 (*_bfd_error_handler) (_("stubs don't match calculated size"));
5d1634d7 7319 }
721956f4 7320
d2a300cf
AM
7321 if (htab->stub_error)
7322 return FALSE;
7323
7324 if (stats != NULL)
7325 {
7326 *stats = bfd_malloc (500);
7327 if (*stats == NULL)
7328 return FALSE;
7329
7330 sprintf (*stats, _("linker stubs in %u groups\n"
7331 " branch %lu\n"
7332 " toc adjust %lu\n"
7333 " long branch %lu\n"
7334 " long toc adj %lu\n"
7335 " plt call %lu"),
e717da7e 7336 stub_sec_count,
4ce794b7
AM
7337 htab->stub_count[ppc_stub_long_branch - 1],
7338 htab->stub_count[ppc_stub_long_branch_r2off - 1],
7339 htab->stub_count[ppc_stub_plt_branch - 1],
7340 htab->stub_count[ppc_stub_plt_branch_r2off - 1],
7341 htab->stub_count[ppc_stub_plt_call - 1]);
d2a300cf
AM
7342 }
7343 return TRUE;
5bd4f169
AM
7344}
7345
5bd4f169
AM
7346/* The RELOCATE_SECTION function is called by the ELF backend linker
7347 to handle the relocations for a section.
7348
7349 The relocs are always passed as Rela structures; if the section
7350 actually uses Rel structures, the r_addend field will always be
7351 zero.
7352
7353 This function is responsible for adjust the section contents as
7354 necessary, and (if using Rela relocs and generating a
1049f94e 7355 relocatable output file) adjusting the reloc addend as
5bd4f169
AM
7356 necessary.
7357
7358 This function does not have to worry about setting the reloc
7359 address or the reloc symbol index.
7360
7361 LOCAL_SYMS is a pointer to the swapped in local symbols.
7362
7363 LOCAL_SECTIONS is an array giving the section in the input file
7364 corresponding to the st_shndx field of each local symbol.
7365
7366 The global hash table entry for the global symbols can be found
7367 via elf_sym_hashes (input_bfd).
7368
1049f94e 7369 When generating relocatable output, this function must handle
5bd4f169
AM
7370 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
7371 going to be the section symbol corresponding to the output
7372 section, which means that the addend must be adjusted
7373 accordingly. */
7374
b34976b6 7375static bfd_boolean
4ce794b7
AM
7376ppc64_elf_relocate_section (bfd *output_bfd,
7377 struct bfd_link_info *info,
7378 bfd *input_bfd,
7379 asection *input_section,
7380 bfd_byte *contents,
7381 Elf_Internal_Rela *relocs,
7382 Elf_Internal_Sym *local_syms,
7383 asection **local_sections)
5bd4f169 7384{
65f38f15 7385 struct ppc_link_hash_table *htab;
5bd4f169
AM
7386 Elf_Internal_Shdr *symtab_hdr;
7387 struct elf_link_hash_entry **sym_hashes;
5bd4f169
AM
7388 Elf_Internal_Rela *rel;
7389 Elf_Internal_Rela *relend;
411e1bfb
AM
7390 Elf_Internal_Rela outrel;
7391 bfd_byte *loc;
411e1bfb 7392 struct got_entry **local_got_ents;
5bd4f169 7393 bfd_vma TOCstart;
b34976b6
AM
7394 bfd_boolean ret = TRUE;
7395 bfd_boolean is_opd;
96e0dda4 7396 /* Disabled until we sort out how ld should choose 'y' vs 'at'. */
b34976b6 7397 bfd_boolean is_power4 = FALSE;
5bd4f169 7398
1049f94e 7399 if (info->relocatable)
b34976b6 7400 return TRUE;
b491616a 7401
65f38f15 7402 /* Initialize howto table if needed. */
5bd4f169 7403 if (!ppc64_elf_howto_table[R_PPC64_ADDR32])
5bd4f169
AM
7404 ppc_howto_init ();
7405
65f38f15 7406 htab = ppc_hash_table (info);
411e1bfb 7407 local_got_ents = elf_local_got_ents (input_bfd);
5bd4f169 7408 TOCstart = elf_gp (output_bfd);
5bd4f169
AM
7409 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
7410 sym_hashes = elf_sym_hashes (input_bfd);
f0abc2a1 7411 is_opd = ppc64_elf_section_data (input_section)->opd.adjust != NULL;
65f38f15 7412
5bd4f169
AM
7413 rel = relocs;
7414 relend = relocs + input_section->reloc_count;
7415 for (; rel < relend; rel++)
7416 {
04c9666a 7417 enum elf_ppc64_reloc_type r_type;
5bd4f169
AM
7418 bfd_vma addend;
7419 bfd_reloc_status_type r;
7420 Elf_Internal_Sym *sym;
7421 asection *sec;
7422 struct elf_link_hash_entry *h;
721956f4 7423 struct elf_link_hash_entry *fdh;
5bd4f169 7424 const char *sym_name;
0d4792f7 7425 unsigned long r_symndx, toc_symndx;
951fd09b 7426 char tls_mask, tls_gd, tls_type;
0d4792f7 7427 char sym_type;
5bd4f169 7428 bfd_vma relocation;
b34976b6
AM
7429 bfd_boolean unresolved_reloc;
7430 bfd_boolean warned;
50bc7936 7431 unsigned long insn, mask;
721956f4
AM
7432 struct ppc_stub_hash_entry *stub_entry;
7433 bfd_vma max_br_offset;
7434 bfd_vma from;
5bd4f169 7435
4ce794b7 7436 r_type = ELF64_R_TYPE (rel->r_info);
5bd4f169 7437 r_symndx = ELF64_R_SYM (rel->r_info);
ee87f2da
AM
7438
7439 /* For old style R_PPC64_TOC relocs with a zero symbol, use the
7440 symbol of the previous ADDR64 reloc. The symbol gives us the
7441 proper TOC base to use. */
7442 if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC)
7443 && rel != relocs
7444 && ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_ADDR64
7445 && is_opd)
7446 r_symndx = ELF64_R_SYM (rel[-1].r_info);
7447
4ce794b7
AM
7448 sym = NULL;
7449 sec = NULL;
7450 h = NULL;
7451 sym_name = NULL;
b34976b6
AM
7452 unresolved_reloc = FALSE;
7453 warned = FALSE;
65f38f15 7454
0b13192e 7455 if (r_symndx < symtab_hdr->sh_info)
5bd4f169
AM
7456 {
7457 /* It's a local symbol. */
7458 sym = local_syms + r_symndx;
7459 sec = local_sections[r_symndx];
411e1bfb 7460 sym_name = bfd_elf_local_sym_name (input_bfd, sym);
0d4792f7 7461 sym_type = ELF64_ST_TYPE (sym->st_info);
8517fae7 7462 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
1e2f5b6e
AM
7463 if (elf_section_data (sec) != NULL)
7464 {
7465 long *opd_sym_adjust;
7466
f0abc2a1 7467 opd_sym_adjust = ppc64_elf_section_data (sec)->opd.adjust;
754021d0 7468 if (opd_sym_adjust != NULL)
1e2f5b6e
AM
7469 relocation += opd_sym_adjust[sym->st_value / 24];
7470 }
5bd4f169
AM
7471 }
7472 else
7473 {
b2a8e766
AM
7474 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
7475 r_symndx, symtab_hdr, sym_hashes,
7476 h, sec, relocation,
7477 unresolved_reloc, warned);
5bd4f169 7478 sym_name = h->root.root.string;
0d4792f7 7479 sym_type = h->type;
5bd4f169
AM
7480 }
7481
951fd09b
AM
7482 /* TLS optimizations. Replace instruction sequences and relocs
7483 based on information we collected in tls_optimize. We edit
7484 RELOCS so that --emit-relocs will output something sensible
7485 for the final instruction stream. */
7486 tls_mask = 0;
7487 tls_gd = 0;
0d4792f7 7488 toc_symndx = 0;
d881513a 7489 if (IS_PPC64_TLS_RELOC (r_type))
411e1bfb
AM
7490 {
7491 if (h != NULL)
e7b938ca 7492 tls_mask = ((struct ppc_link_hash_entry *) h)->tls_mask;
411e1bfb
AM
7493 else if (local_got_ents != NULL)
7494 {
e7b938ca
AM
7495 char *lgot_masks;
7496 lgot_masks = (char *) (local_got_ents + symtab_hdr->sh_info);
7497 tls_mask = lgot_masks[r_symndx];
411e1bfb 7498 }
0d4792f7
AM
7499 if (tls_mask == 0 && r_type == R_PPC64_TLS)
7500 {
7501 /* Check for toc tls entries. */
7502 char *toc_tls;
7503
7504 if (!get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
7505 rel, input_bfd))
7506 return FALSE;
7507
7508 if (toc_tls)
7509 tls_mask = *toc_tls;
7510 }
7511 }
7512
7513 /* Check that tls relocs are used with tls syms, and non-tls
7514 relocs are used with non-tls syms. */
7515 if (r_symndx != 0
7516 && r_type != R_PPC64_NONE
7517 && (h == NULL
7518 || h->root.type == bfd_link_hash_defined
7519 || h->root.type == bfd_link_hash_defweak)
7520 && IS_PPC64_TLS_RELOC (r_type) != (sym_type == STT_TLS))
7521 {
7522 if (r_type == R_PPC64_TLS && tls_mask != 0)
7523 /* R_PPC64_TLS is OK against a symbol in the TOC. */
7524 ;
7525 else
7526 (*_bfd_error_handler)
7527 (sym_type == STT_TLS
7528 ? _("%s(%s+0x%lx): %s used with TLS symbol %s")
7529 : _("%s(%s+0x%lx): %s used with non-TLS symbol %s"),
7530 bfd_archive_filename (input_bfd),
7531 input_section->name,
7532 (long) rel->r_offset,
7533 ppc64_elf_howto_table[r_type]->name,
7534 sym_name);
411e1bfb
AM
7535 }
7536
7537 /* Ensure reloc mapping code below stays sane. */
7538 if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1
7539 || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1
7540 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3)
7541 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3)
7542 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3)
7543 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3)
7544 || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3)
7545 || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3)
7546 || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3)
7547 || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3))
7548 abort ();
0d4792f7 7549
411e1bfb
AM
7550 switch (r_type)
7551 {
7552 default:
411e1bfb
AM
7553 break;
7554
7555 case R_PPC64_TOC16:
7556 case R_PPC64_TOC16_LO:
7557 case R_PPC64_TOC16_DS:
7558 case R_PPC64_TOC16_LO_DS:
411e1bfb
AM
7559 {
7560 /* Check for toc tls entries. */
7561 char *toc_tls;
951fd09b 7562 int retval;
411e1bfb 7563
0d4792f7
AM
7564 retval = get_tls_mask (&toc_tls, &toc_symndx, &local_syms,
7565 rel, input_bfd);
951fd09b 7566 if (retval == 0)
411e1bfb
AM
7567 return FALSE;
7568
7569 if (toc_tls)
7570 {
951fd09b 7571 tls_mask = *toc_tls;
411e1bfb
AM
7572 if (r_type == R_PPC64_TOC16_DS
7573 || r_type == R_PPC64_TOC16_LO_DS)
81407a69
AM
7574 {
7575 if (tls_mask != 0
7576 && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0)
7577 goto toctprel;
7578 }
411e1bfb 7579 else
951fd09b
AM
7580 {
7581 /* If we found a GD reloc pair, then we might be
7582 doing a GD->IE transition. */
7583 if (retval == 2)
7584 {
7585 tls_gd = TLS_TPRELGD;
7586 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7587 goto tls_get_addr_check;
7588 }
7589 else if (retval == 3)
7590 {
7591 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7592 goto tls_get_addr_check;
7593 }
7594 }
411e1bfb
AM
7595 }
7596 }
7597 break;
7598
7599 case R_PPC64_GOT_TPREL16_DS:
7600 case R_PPC64_GOT_TPREL16_LO_DS:
951fd09b
AM
7601 if (tls_mask != 0
7602 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7603 {
81407a69 7604 toctprel:
411e1bfb
AM
7605 insn = bfd_get_32 (output_bfd, contents + rel->r_offset - 2);
7606 insn &= 31 << 21;
7607 insn |= 0x3c0d0000; /* addis 0,13,0 */
7608 bfd_put_32 (output_bfd, insn, contents + rel->r_offset - 2);
7609 r_type = R_PPC64_TPREL16_HA;
0d4792f7
AM
7610 if (toc_symndx != 0)
7611 {
7612 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
7613 /* We changed the symbol. Start over in order to
7614 get h, sym, sec etc. right. */
7615 rel--;
7616 continue;
7617 }
7618 else
7619 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7620 }
7621 break;
7622
7623 case R_PPC64_TLS:
951fd09b
AM
7624 if (tls_mask != 0
7625 && (tls_mask & TLS_TPREL) == 0)
411e1bfb 7626 {
50bc7936 7627 bfd_vma rtra;
411e1bfb 7628 insn = bfd_get_32 (output_bfd, contents + rel->r_offset);
772119ce 7629 if ((insn & ((0x3f << 26) | (31 << 11)))
411e1bfb
AM
7630 == ((31 << 26) | (13 << 11)))
7631 rtra = insn & ((1 << 26) - (1 << 16));
772119ce 7632 else if ((insn & ((0x3f << 26) | (31 << 16)))
411e1bfb
AM
7633 == ((31 << 26) | (13 << 16)))
7634 rtra = (insn & (31 << 21)) | ((insn & (31 << 11)) << 5);
7635 else
7636 abort ();
7637 if ((insn & ((1 << 11) - (1 << 1))) == 266 << 1)
7638 /* add -> addi. */
7639 insn = 14 << 26;
7640 else if ((insn & (31 << 1)) == 23 << 1
7641 && ((insn & (31 << 6)) < 14 << 6
7642 || ((insn & (31 << 6)) >= 16 << 6
7643 && (insn & (31 << 6)) < 24 << 6)))
7644 /* load and store indexed -> dform. */
7645 insn = (32 | ((insn >> 6) & 31)) << 26;
7646 else if ((insn & (31 << 1)) == 21 << 1
7647 && (insn & (0x1a << 6)) == 0)
7648 /* ldx, ldux, stdx, stdux -> ld, ldu, std, stdu. */
7649 insn = (((58 | ((insn >> 6) & 4)) << 26)
7650 | ((insn >> 6) & 1));
7651 else if ((insn & (31 << 1)) == 21 << 1
7652 && (insn & ((1 << 11) - (1 << 1))) == 341 << 1)
7653 /* lwax -> lwa. */
7654 insn = (58 << 26) | 2;
7655 else
7656 abort ();
7657 insn |= rtra;
7658 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
411e1bfb
AM
7659 /* Was PPC64_TLS which sits on insn boundary, now
7660 PPC64_TPREL16_LO which is at insn+2. */
7661 rel->r_offset += 2;
0d4792f7
AM
7662 r_type = R_PPC64_TPREL16_LO;
7663 if (toc_symndx != 0)
7664 {
7665 rel->r_info = ELF64_R_INFO (toc_symndx, r_type);
7666 /* We changed the symbol. Start over in order to
7667 get h, sym, sec etc. right. */
7668 rel--;
7669 continue;
7670 }
7671 else
7672 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7673 }
7674 break;
7675
411e1bfb
AM
7676 case R_PPC64_GOT_TLSGD16_HI:
7677 case R_PPC64_GOT_TLSGD16_HA:
951fd09b
AM
7678 tls_gd = TLS_TPRELGD;
7679 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7680 goto tls_gdld_hi;
7681 break;
7682
411e1bfb
AM
7683 case R_PPC64_GOT_TLSLD16_HI:
7684 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 7685 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
411e1bfb 7686 {
951fd09b
AM
7687 tls_gdld_hi:
7688 if ((tls_mask & tls_gd) != 0)
7689 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7690 + R_PPC64_GOT_TPREL16_DS);
7691 else
411e1bfb 7692 {
951fd09b
AM
7693 bfd_put_32 (output_bfd, NOP, contents + rel->r_offset);
7694 rel->r_offset -= 2;
7695 r_type = R_PPC64_NONE;
411e1bfb 7696 }
951fd09b 7697 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7698 }
7699 break;
7700
951fd09b
AM
7701 case R_PPC64_GOT_TLSGD16:
7702 case R_PPC64_GOT_TLSGD16_LO:
7703 tls_gd = TLS_TPRELGD;
7704 if (tls_mask != 0 && (tls_mask & TLS_GD) == 0)
7705 goto tls_get_addr_check;
7706 break;
411e1bfb 7707
951fd09b
AM
7708 case R_PPC64_GOT_TLSLD16:
7709 case R_PPC64_GOT_TLSLD16_LO:
7710 if (tls_mask != 0 && (tls_mask & TLS_LD) == 0)
7711 {
7712 tls_get_addr_check:
7713 if (rel + 1 < relend)
411e1bfb 7714 {
951fd09b
AM
7715 enum elf_ppc64_reloc_type r_type2;
7716 unsigned long r_symndx2;
7717 struct elf_link_hash_entry *h2;
7718 bfd_vma insn1, insn2, insn3;
7719 bfd_vma offset;
7720
7721 /* The next instruction should be a call to
7722 __tls_get_addr. Peek at the reloc to be sure. */
4ce794b7 7723 r_type2 = ELF64_R_TYPE (rel[1].r_info);
951fd09b
AM
7724 r_symndx2 = ELF64_R_SYM (rel[1].r_info);
7725 if (r_symndx2 < symtab_hdr->sh_info
7726 || (r_type2 != R_PPC64_REL14
7727 && r_type2 != R_PPC64_REL14_BRTAKEN
7728 && r_type2 != R_PPC64_REL14_BRNTAKEN
7729 && r_type2 != R_PPC64_REL24))
7730 break;
7731
7732 h2 = sym_hashes[r_symndx2 - symtab_hdr->sh_info];
7733 while (h2->root.type == bfd_link_hash_indirect
7734 || h2->root.type == bfd_link_hash_warning)
7735 h2 = (struct elf_link_hash_entry *) h2->root.u.i.link;
7736 if (h2 == NULL || h2 != htab->tls_get_addr)
7737 break;
7738
7739 /* OK, it checks out. Replace the call. */
7740 offset = rel[1].r_offset;
7741 insn1 = bfd_get_32 (output_bfd,
7742 contents + rel->r_offset - 2);
7743 insn3 = bfd_get_32 (output_bfd,
7744 contents + offset + 4);
7745 if ((tls_mask & tls_gd) != 0)
411e1bfb 7746 {
951fd09b
AM
7747 /* IE */
7748 insn1 &= (1 << 26) - (1 << 2);
7749 insn1 |= 58 << 26; /* ld */
7750 insn2 = 0x7c636a14; /* add 3,3,13 */
7751 rel[1].r_info = ELF64_R_INFO (r_symndx2, R_PPC64_NONE);
7752 if ((tls_mask & TLS_EXPLICIT) == 0)
7753 r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3)
7754 + R_PPC64_GOT_TPREL16_DS);
7755 else
7756 r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16;
7757 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb
AM
7758 }
7759 else
951fd09b
AM
7760 {
7761 /* LE */
7762 insn1 = 0x3c6d0000; /* addis 3,13,0 */
7763 insn2 = 0x38630000; /* addi 3,3,0 */
7764 if (tls_gd == 0)
7765 {
7766 /* Was an LD reloc. */
7767 r_symndx = 0;
e1918d23
AM
7768 rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
7769 rel[1].r_addend = htab->elf.tls_sec->vma + DTP_OFFSET;
951fd09b 7770 }
0d4792f7
AM
7771 else if (toc_symndx != 0)
7772 r_symndx = toc_symndx;
951fd09b
AM
7773 r_type = R_PPC64_TPREL16_HA;
7774 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7775 rel[1].r_info = ELF64_R_INFO (r_symndx,
7776 R_PPC64_TPREL16_LO);
7777 rel[1].r_offset += 2;
7778 }
7779 if (insn3 == NOP
7780 || insn3 == CROR_151515 || insn3 == CROR_313131)
7781 {
7782 insn3 = insn2;
7783 insn2 = NOP;
7784 rel[1].r_offset += 4;
7785 }
7786 bfd_put_32 (output_bfd, insn1, contents + rel->r_offset - 2);
7787 bfd_put_32 (output_bfd, insn2, contents + offset);
7788 bfd_put_32 (output_bfd, insn3, contents + offset + 4);
0d4792f7 7789 if (tls_gd == 0 || toc_symndx != 0)
951fd09b 7790 {
0d4792f7
AM
7791 /* We changed the symbol. Start over in order
7792 to get h, sym, sec etc. right. */
951fd09b
AM
7793 rel--;
7794 continue;
7795 }
411e1bfb 7796 }
411e1bfb 7797 }
411e1bfb
AM
7798 break;
7799
7800 case R_PPC64_DTPMOD64:
951fd09b
AM
7801 if (rel + 1 < relend
7802 && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)
7803 && rel[1].r_offset == rel->r_offset + 8)
411e1bfb 7804 {
951fd09b
AM
7805 if ((tls_mask & TLS_GD) == 0)
7806 {
7807 rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE);
7808 if ((tls_mask & TLS_TPRELGD) != 0)
7809 r_type = R_PPC64_TPREL64;
7810 else
7811 {
4ce794b7 7812 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
951fd09b
AM
7813 r_type = R_PPC64_NONE;
7814 }
7815 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7816 }
7817 }
7818 else
7819 {
7820 if ((tls_mask & TLS_LD) == 0)
411e1bfb 7821 {
4ce794b7 7822 bfd_put_64 (output_bfd, 1, contents + rel->r_offset);
411e1bfb 7823 r_type = R_PPC64_NONE;
951fd09b 7824 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
411e1bfb 7825 }
411e1bfb
AM
7826 }
7827 break;
7828
7829 case R_PPC64_TPREL64:
951fd09b 7830 if ((tls_mask & TLS_TPREL) == 0)
411e1bfb
AM
7831 {
7832 r_type = R_PPC64_NONE;
7833 rel->r_info = ELF64_R_INFO (r_symndx, r_type);
7834 }
7835 break;
7836 }
7837
7838 /* Handle other relocations that tweak non-addend part of insn. */
86c76c7b 7839 insn = 0;
65f38f15 7840 switch (r_type)
5bd4f169
AM
7841 {
7842 default:
65f38f15 7843 break;
5bd4f169 7844
65f38f15
AM
7845 /* Branch taken prediction relocations. */
7846 case R_PPC64_ADDR14_BRTAKEN:
7847 case R_PPC64_REL14_BRTAKEN:
cedb70c5
KH
7848 insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */
7849 /* Fall thru. */
65f38f15 7850
86c76c7b 7851 /* Branch not taken prediction relocations. */
65f38f15
AM
7852 case R_PPC64_ADDR14_BRNTAKEN:
7853 case R_PPC64_REL14_BRNTAKEN:
411e1bfb
AM
7854 insn |= bfd_get_32 (output_bfd,
7855 contents + rel->r_offset) & ~(0x01 << 21);
96e0dda4
AM
7856 if (is_power4)
7857 {
7858 /* Set 'a' bit. This is 0b00010 in BO field for branch
7859 on CR(BI) insns (BO == 001at or 011at), and 0b01000
7860 for branch on CTR insns (BO == 1a00t or 1a01t). */
7861 if ((insn & (0x14 << 21)) == (0x04 << 21))
7862 insn |= 0x02 << 21;
7863 else if ((insn & (0x14 << 21)) == (0x10 << 21))
7864 insn |= 0x08 << 21;
7865 else
7866 break;
7867 }
65f38f15 7868 else
96e0dda4 7869 {
411e1bfb 7870 from = (rel->r_offset
805fc799
AM
7871 + input_section->output_offset
7872 + input_section->output_section->vma);
7873
96e0dda4 7874 /* Invert 'y' bit if not the default. */
411e1bfb 7875 if ((bfd_signed_vma) (relocation + rel->r_addend - from) < 0)
96e0dda4
AM
7876 insn ^= 0x01 << 21;
7877 }
86c76c7b 7878
4ce794b7 7879 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
65f38f15 7880 break;
5bd4f169 7881
65f38f15 7882 case R_PPC64_REL24:
ad8e1ba5
AM
7883 /* Calls to functions with a different TOC, such as calls to
7884 shared objects, need to alter the TOC pointer. This is
7885 done using a linkage stub. A REL24 branching to these
7886 linkage stubs needs to be followed by a nop, as the nop
7887 will be replaced with an instruction to restore the TOC
7888 base pointer. */
7889 if (((h != NULL
7890 && (fdh = ((struct ppc_link_hash_entry *) h)->oh) != NULL
7891 && fdh->plt.plist != NULL)
7892 || ((fdh = h, sec) != NULL
7893 && sec->output_section != NULL
7894 && (htab->stub_group[sec->id].toc_off
7895 != htab->stub_group[input_section->id].toc_off)))
721956f4 7896 && (stub_entry = ppc_get_stub_entry (input_section, sec, fdh,
ad8e1ba5
AM
7897 rel, htab)) != NULL
7898 && (stub_entry->stub_type == ppc_stub_plt_call
7899 || stub_entry->stub_type == ppc_stub_plt_branch_r2off
7900 || stub_entry->stub_type == ppc_stub_long_branch_r2off))
41bd81ab 7901 {
b34976b6 7902 bfd_boolean can_plt_call = 0;
721956f4 7903
eea6121a 7904 if (rel->r_offset + 8 <= input_section->size)
41bd81ab 7905 {
411e1bfb 7906 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
721956f4
AM
7907 if (insn == NOP
7908 || insn == CROR_151515 || insn == CROR_313131)
41bd81ab 7909 {
4ce794b7 7910 bfd_put_32 (input_bfd, LD_R2_40R1,
411e1bfb 7911 contents + rel->r_offset + 4);
721956f4 7912 can_plt_call = 1;
41bd81ab 7913 }
5bd4f169 7914 }
721956f4
AM
7915
7916 if (!can_plt_call)
7917 {
ad8e1ba5
AM
7918 if (stub_entry->stub_type == ppc_stub_plt_call)
7919 {
7920 /* If this is a plain branch rather than a branch
7921 and link, don't require a nop. */
7922 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
7923 if ((insn & 1) == 0)
7924 can_plt_call = 1;
7925 }
6ab189d5
AM
7926 else if (h != NULL
7927 && strcmp (h->root.root.string,
7928 ".__libc_start_main") == 0)
7929 {
7930 /* Allow crt1 branch to go via a toc adjusting stub. */
7931 can_plt_call = 1;
7932 }
ad8e1ba5
AM
7933 else
7934 {
7935 if (strcmp (input_section->output_section->name,
7936 ".init") == 0
7937 || strcmp (input_section->output_section->name,
7938 ".fini") == 0)
7939 (*_bfd_error_handler)
7940 (_("%s(%s+0x%lx): automatic multiple TOCs "
7941 "not supported using your crt files; "
7942 "recompile with -mminimal-toc or upgrade gcc"),
7943 bfd_archive_filename (input_bfd),
7944 input_section->name,
7945 (long) rel->r_offset);
7946 else
7947 (*_bfd_error_handler)
7948 (_("%s(%s+0x%lx): sibling call optimization to `%s' "
7949 "does not allow automatic multiple TOCs; "
7950 "recompile with -mminimal-toc or "
7951 "-fno-optimize-sibling-calls, "
7952 "or make `%s' extern"),
7953 bfd_archive_filename (input_bfd),
7954 input_section->name,
7955 (long) rel->r_offset,
7956 sym_name,
7957 sym_name);
7958 bfd_set_error (bfd_error_bad_value);
7959 ret = FALSE;
7960 }
721956f4
AM
7961 }
7962
7963 if (can_plt_call)
7964 {
7965 relocation = (stub_entry->stub_offset
7966 + stub_entry->stub_sec->output_offset
7967 + stub_entry->stub_sec->output_section->vma);
ad8e1ba5
AM
7968 if (stub_entry->stub_type == ppc_stub_plt_call)
7969 unresolved_reloc = FALSE;
721956f4 7970 }
5bd4f169 7971 }
e86ce104
AM
7972
7973 if (h != NULL
7974 && h->root.type == bfd_link_hash_undefweak
721956f4 7975 && relocation == 0
411e1bfb 7976 && rel->r_addend == 0)
e86ce104 7977 {
721956f4
AM
7978 /* Tweak calls to undefined weak functions to point at a
7979 blr. We can thus call a weak function without first
7980 checking whether the function is defined. We have a
7981 blr at the end of .sfpr. */
eea6121a
AM
7982 BFD_ASSERT (htab->sfpr->size != 0);
7983 relocation = (htab->sfpr->size - 4
721956f4
AM
7984 + htab->sfpr->output_offset
7985 + htab->sfpr->output_section->vma);
411e1bfb 7986 from = (rel->r_offset
721956f4
AM
7987 + input_section->output_offset
7988 + input_section->output_section->vma);
805fc799 7989
721956f4
AM
7990 /* But let's not be silly about it. If the blr isn't in
7991 reach, just go to the next instruction. */
805fc799 7992 if (relocation - from + (1 << 25) >= (1 << 26)
eea6121a 7993 || htab->sfpr->size == 0)
721956f4 7994 relocation = from + 4;
e86ce104 7995 }
65f38f15
AM
7996 break;
7997 }
5bd4f169 7998
65f38f15 7999 /* Set `addend'. */
411e1bfb
AM
8000 tls_type = 0;
8001 addend = rel->r_addend;
65f38f15
AM
8002 switch (r_type)
8003 {
8004 default:
8005 (*_bfd_error_handler)
8006 (_("%s: unknown relocation type %d for symbol %s"),
8007 bfd_archive_filename (input_bfd), (int) r_type, sym_name);
5bd4f169 8008
65f38f15 8009 bfd_set_error (bfd_error_bad_value);
b34976b6 8010 ret = FALSE;
65f38f15 8011 continue;
5bd4f169 8012
65f38f15 8013 case R_PPC64_NONE:
411e1bfb 8014 case R_PPC64_TLS:
04c9666a
AM
8015 case R_PPC64_GNU_VTINHERIT:
8016 case R_PPC64_GNU_VTENTRY:
65f38f15 8017 continue;
5bd4f169
AM
8018
8019 /* GOT16 relocations. Like an ADDR16 using the symbol's
8020 address in the GOT as relocation value instead of the
411e1bfb 8021 symbol's value itself. Also, create a GOT entry for the
5bd4f169 8022 symbol and put the symbol value there. */
411e1bfb
AM
8023 case R_PPC64_GOT_TLSGD16:
8024 case R_PPC64_GOT_TLSGD16_LO:
8025 case R_PPC64_GOT_TLSGD16_HI:
8026 case R_PPC64_GOT_TLSGD16_HA:
951fd09b 8027 tls_type = TLS_TLS | TLS_GD;
411e1bfb
AM
8028 goto dogot;
8029
8030 case R_PPC64_GOT_TLSLD16:
8031 case R_PPC64_GOT_TLSLD16_LO:
8032 case R_PPC64_GOT_TLSLD16_HI:
8033 case R_PPC64_GOT_TLSLD16_HA:
951fd09b 8034 tls_type = TLS_TLS | TLS_LD;
411e1bfb
AM
8035 goto dogot;
8036
8037 case R_PPC64_GOT_TPREL16_DS:
8038 case R_PPC64_GOT_TPREL16_LO_DS:
8039 case R_PPC64_GOT_TPREL16_HI:
8040 case R_PPC64_GOT_TPREL16_HA:
8041 tls_type = TLS_TLS | TLS_TPREL;
8042 goto dogot;
8043
8044 case R_PPC64_GOT_DTPREL16_DS:
8045 case R_PPC64_GOT_DTPREL16_LO_DS:
8046 case R_PPC64_GOT_DTPREL16_HI:
8047 case R_PPC64_GOT_DTPREL16_HA:
8048 tls_type = TLS_TLS | TLS_DTPREL;
8049 goto dogot;
8050
65f38f15
AM
8051 case R_PPC64_GOT16:
8052 case R_PPC64_GOT16_LO:
8053 case R_PPC64_GOT16_HI:
8054 case R_PPC64_GOT16_HA:
8055 case R_PPC64_GOT16_DS:
8056 case R_PPC64_GOT16_LO_DS:
411e1bfb 8057 dogot:
5bd4f169
AM
8058 {
8059 /* Relocation is to the entry for this symbol in the global
8060 offset table. */
e717da7e 8061 asection *got;
d881513a 8062 bfd_vma *offp;
5bd4f169 8063 bfd_vma off;
d881513a 8064 unsigned long indx = 0;
65f38f15 8065
d881513a
AM
8066 if (tls_type == (TLS_TLS | TLS_LD)
8067 && (h == NULL
8068 || !(h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC)))
e717da7e 8069 offp = &ppc64_tlsld_got (input_bfd)->offset;
411e1bfb 8070 else
5bd4f169 8071 {
d881513a 8072 struct got_entry *ent;
5bd4f169 8073
d881513a
AM
8074 if (h != NULL)
8075 {
8076 bfd_boolean dyn = htab->elf.dynamic_sections_created;
f4656909 8077 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
d881513a 8078 || (info->shared
586119b3 8079 && SYMBOL_REFERENCES_LOCAL (info, h)))
d881513a
AM
8080 /* This is actually a static link, or it is a
8081 -Bsymbolic link and the symbol is defined
8082 locally, or the symbol was forced to be local
8083 because of a version file. */
8084 ;
8085 else
8086 {
8087 indx = h->dynindx;
8088 unresolved_reloc = FALSE;
8089 }
8090 ent = h->got.glist;
8091 }
411e1bfb 8092 else
5bd4f169 8093 {
d881513a
AM
8094 if (local_got_ents == NULL)
8095 abort ();
8096 ent = local_got_ents[r_symndx];
5bd4f169 8097 }
d881513a
AM
8098
8099 for (; ent != NULL; ent = ent->next)
8100 if (ent->addend == rel->r_addend
e717da7e 8101 && ent->owner == input_bfd
d881513a
AM
8102 && ent->tls_type == tls_type)
8103 break;
8104 if (ent == NULL)
8105 abort ();
8106 offp = &ent->got.offset;
5bd4f169 8107 }
411e1bfb 8108
e717da7e
AM
8109 got = ppc64_elf_tdata (input_bfd)->got;
8110 if (got == NULL)
8111 abort ();
8112
411e1bfb
AM
8113 /* The offset must always be a multiple of 8. We use the
8114 least significant bit to record whether we have already
8115 processed this entry. */
d881513a 8116 off = *offp;
411e1bfb
AM
8117 if ((off & 1) != 0)
8118 off &= ~1;
5bd4f169
AM
8119 else
8120 {
411e1bfb
AM
8121 /* Generate relocs for the dynamic linker, except in
8122 the case of TLSLD where we'll use one entry per
8123 module. */
e717da7e
AM
8124 asection *relgot = ppc64_elf_tdata (input_bfd)->relgot;
8125
d881513a 8126 *offp = off | 1;
4e795f50
AM
8127 if ((info->shared || indx != 0)
8128 && (h == NULL
8129 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8130 || h->root.type != bfd_link_hash_undefweak))
5bd4f169 8131 {
e717da7e
AM
8132 outrel.r_offset = (got->output_section->vma
8133 + got->output_offset
411e1bfb 8134 + off);
81407a69 8135 outrel.r_addend = rel->r_addend;
d881513a 8136 if (tls_type & (TLS_LD | TLS_GD))
5bd4f169 8137 {
411e1bfb 8138 outrel.r_addend = 0;
e515b051 8139 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64);
d881513a
AM
8140 if (tls_type == (TLS_TLS | TLS_GD))
8141 {
e717da7e
AM
8142 loc = relgot->contents;
8143 loc += (relgot->reloc_count++
d881513a
AM
8144 * sizeof (Elf64_External_Rela));
8145 bfd_elf64_swap_reloca_out (output_bfd,
8146 &outrel, loc);
e515b051 8147 outrel.r_offset += 8;
81407a69 8148 outrel.r_addend = rel->r_addend;
d881513a
AM
8149 outrel.r_info
8150 = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
d881513a 8151 }
411e1bfb 8152 }
951fd09b 8153 else if (tls_type == (TLS_TLS | TLS_DTPREL))
411e1bfb 8154 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64);
951fd09b 8155 else if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb
AM
8156 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64);
8157 else if (indx == 0)
81407a69
AM
8158 {
8159 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_RELATIVE);
8160
8161 /* Write the .got section contents for the sake
8162 of prelink. */
e717da7e 8163 loc = got->contents + off;
23fbd6fa
JJ
8164 bfd_put_64 (output_bfd, outrel.r_addend + relocation,
8165 loc);
81407a69 8166 }
411e1bfb
AM
8167 else
8168 outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT);
81407a69
AM
8169
8170 if (indx == 0 && tls_type != (TLS_TLS | TLS_LD))
e515b051
AM
8171 {
8172 outrel.r_addend += relocation;
8173 if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL))
e1918d23 8174 outrel.r_addend -= htab->elf.tls_sec->vma;
e515b051 8175 }
e717da7e
AM
8176 loc = relgot->contents;
8177 loc += (relgot->reloc_count++
411e1bfb
AM
8178 * sizeof (Elf64_External_Rela));
8179 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8180 }
8181
ad8e1ba5 8182 /* Init the .got section contents here if we're not
81407a69 8183 emitting a reloc. */
d881513a 8184 else
411e1bfb 8185 {
d881513a 8186 relocation += rel->r_addend;
7b609f53
AM
8187 if (tls_type == (TLS_TLS | TLS_LD))
8188 relocation = 1;
8189 else if (tls_type != 0)
411e1bfb 8190 {
e1918d23 8191 relocation -= htab->elf.tls_sec->vma + DTP_OFFSET;
7b609f53 8192 if (tls_type == (TLS_TLS | TLS_TPREL))
411e1bfb 8193 relocation += DTP_OFFSET - TP_OFFSET;
5bd4f169 8194
7b609f53
AM
8195 if (tls_type == (TLS_TLS | TLS_GD))
8196 {
8197 bfd_put_64 (output_bfd, relocation,
e717da7e 8198 got->contents + off + 8);
7b609f53
AM
8199 relocation = 1;
8200 }
411e1bfb 8201 }
7b609f53 8202
411e1bfb 8203 bfd_put_64 (output_bfd, relocation,
e717da7e 8204 got->contents + off);
5bd4f169
AM
8205 }
8206 }
8207
65f38f15
AM
8208 if (off >= (bfd_vma) -2)
8209 abort ();
8210
e717da7e 8211 relocation = got->output_offset + off;
65f38f15 8212
5bd4f169 8213 /* TOC base (r2) is TOC start plus 0x8000. */
e717da7e 8214 addend = -TOC_BASE_OFF;
5bd4f169 8215 }
65f38f15
AM
8216 break;
8217
8218 case R_PPC64_PLT16_HA:
8219 case R_PPC64_PLT16_HI:
8220 case R_PPC64_PLT16_LO:
8221 case R_PPC64_PLT32:
8222 case R_PPC64_PLT64:
8223 /* Relocation is to the entry for this symbol in the
8224 procedure linkage table. */
8225
8226 /* Resolve a PLT reloc against a local symbol directly,
8227 without using the procedure linkage table. */
8228 if (h == NULL)
8229 break;
8230
411e1bfb
AM
8231 /* It's possible that we didn't make a PLT entry for this
8232 symbol. This happens when statically linking PIC code,
8233 or when using -Bsymbolic. Go find a match if there is a
8234 PLT entry. */
4ce794b7 8235 if (htab->plt != NULL)
65f38f15 8236 {
411e1bfb
AM
8237 struct plt_entry *ent;
8238 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8239 if (ent->addend == rel->r_addend
8240 && ent->plt.offset != (bfd_vma) -1)
8241 {
4ce794b7
AM
8242 relocation = (htab->plt->output_section->vma
8243 + htab->plt->output_offset
411e1bfb
AM
8244 + ent->plt.offset);
8245 unresolved_reloc = FALSE;
8246 }
65f38f15 8247 }
65f38f15 8248 break;
5bd4f169 8249
0b13192e
AM
8250 case R_PPC64_TOC:
8251 /* Relocation value is TOC base. */
8252 relocation = TOCstart;
8253 if (r_symndx == 0)
8254 relocation += htab->stub_group[input_section->id].toc_off;
8517fae7
AM
8255 else if (unresolved_reloc)
8256 ;
8257 else if (sec != NULL && sec->id <= htab->top_id)
0b13192e
AM
8258 relocation += htab->stub_group[sec->id].toc_off;
8259 else
8260 unresolved_reloc = TRUE;
8261 goto dodyn2;
8262
5bd4f169
AM
8263 /* TOC16 relocs. We want the offset relative to the TOC base,
8264 which is the address of the start of the TOC plus 0x8000.
8265 The TOC consists of sections .got, .toc, .tocbss, and .plt,
8266 in this order. */
65f38f15
AM
8267 case R_PPC64_TOC16:
8268 case R_PPC64_TOC16_LO:
8269 case R_PPC64_TOC16_HI:
8270 case R_PPC64_TOC16_DS:
8271 case R_PPC64_TOC16_LO_DS:
8272 case R_PPC64_TOC16_HA:
ad8e1ba5 8273 addend -= TOCstart + htab->stub_group[input_section->id].toc_off;
5bd4f169
AM
8274 break;
8275
8276 /* Relocate against the beginning of the section. */
65f38f15
AM
8277 case R_PPC64_SECTOFF:
8278 case R_PPC64_SECTOFF_LO:
8279 case R_PPC64_SECTOFF_HI:
8280 case R_PPC64_SECTOFF_DS:
8281 case R_PPC64_SECTOFF_LO_DS:
8282 case R_PPC64_SECTOFF_HA:
4ce794b7 8283 if (sec != NULL)
65f38f15 8284 addend -= sec->output_section->vma;
5bd4f169
AM
8285 break;
8286
721956f4
AM
8287 case R_PPC64_REL14:
8288 case R_PPC64_REL14_BRNTAKEN:
8289 case R_PPC64_REL14_BRTAKEN:
5d1634d7
AM
8290 case R_PPC64_REL24:
8291 break;
8292
411e1bfb
AM
8293 case R_PPC64_TPREL16:
8294 case R_PPC64_TPREL16_LO:
8295 case R_PPC64_TPREL16_HI:
8296 case R_PPC64_TPREL16_HA:
8297 case R_PPC64_TPREL16_DS:
8298 case R_PPC64_TPREL16_LO_DS:
8299 case R_PPC64_TPREL16_HIGHER:
8300 case R_PPC64_TPREL16_HIGHERA:
8301 case R_PPC64_TPREL16_HIGHEST:
8302 case R_PPC64_TPREL16_HIGHESTA:
e1918d23 8303 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM
8304 if (info->shared)
8305 /* The TPREL16 relocs shouldn't really be used in shared
8306 libs as they will result in DT_TEXTREL being set, but
8307 support them anyway. */
8308 goto dodyn;
8309 break;
8310
8311 case R_PPC64_DTPREL16:
8312 case R_PPC64_DTPREL16_LO:
8313 case R_PPC64_DTPREL16_HI:
8314 case R_PPC64_DTPREL16_HA:
8315 case R_PPC64_DTPREL16_DS:
8316 case R_PPC64_DTPREL16_LO_DS:
8317 case R_PPC64_DTPREL16_HIGHER:
8318 case R_PPC64_DTPREL16_HIGHERA:
8319 case R_PPC64_DTPREL16_HIGHEST:
8320 case R_PPC64_DTPREL16_HIGHESTA:
e1918d23 8321 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM
8322 break;
8323
e515b051
AM
8324 case R_PPC64_DTPMOD64:
8325 relocation = 1;
8326 addend = 0;
8327 goto dodyn;
8328
411e1bfb 8329 case R_PPC64_TPREL64:
e1918d23 8330 addend -= htab->elf.tls_sec->vma + TP_OFFSET;
411e1bfb
AM
8331 goto dodyn;
8332
8333 case R_PPC64_DTPREL64:
e1918d23 8334 addend -= htab->elf.tls_sec->vma + DTP_OFFSET;
411e1bfb
AM
8335 /* Fall thru */
8336
65f38f15
AM
8337 /* Relocations that may need to be propagated if this is a
8338 dynamic object. */
04c9666a 8339 case R_PPC64_REL30:
65f38f15
AM
8340 case R_PPC64_REL32:
8341 case R_PPC64_REL64:
8342 case R_PPC64_ADDR14:
8343 case R_PPC64_ADDR14_BRNTAKEN:
8344 case R_PPC64_ADDR14_BRTAKEN:
8345 case R_PPC64_ADDR16:
8346 case R_PPC64_ADDR16_DS:
8347 case R_PPC64_ADDR16_HA:
8348 case R_PPC64_ADDR16_HI:
8349 case R_PPC64_ADDR16_HIGHER:
8350 case R_PPC64_ADDR16_HIGHERA:
8351 case R_PPC64_ADDR16_HIGHEST:
8352 case R_PPC64_ADDR16_HIGHESTA:
8353 case R_PPC64_ADDR16_LO:
8354 case R_PPC64_ADDR16_LO_DS:
8355 case R_PPC64_ADDR24:
65f38f15
AM
8356 case R_PPC64_ADDR32:
8357 case R_PPC64_ADDR64:
8358 case R_PPC64_UADDR16:
8359 case R_PPC64_UADDR32:
8360 case R_PPC64_UADDR64:
ec338859
AM
8361 /* r_symndx will be zero only for relocs against symbols
8362 from removed linkonce sections, or sections discarded by
8363 a linker script. */
411e1bfb 8364 dodyn:
5d1634d7
AM
8365 if (r_symndx == 0)
8366 break;
8367 /* Fall thru. */
8368
0b13192e 8369 dodyn2:
5d1634d7 8370 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
8371 break;
8372
41bd81ab
AM
8373 if (NO_OPD_RELOCS && is_opd)
8374 break;
8375
65f38f15 8376 if ((info->shared
4e795f50
AM
8377 && (h == NULL
8378 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
8379 || h->root.type != bfd_link_hash_undefweak)
411e1bfb 8380 && (MUST_BE_DYN_RELOC (r_type)
f6c52c13 8381 || !SYMBOL_CALLS_LOCAL (info, h)))
f4656909
AM
8382 || (ELIMINATE_COPY_RELOCS
8383 && !info->shared
65f38f15
AM
8384 && h != NULL
8385 && h->dynindx != -1
8386 && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0
58ac9f71
AM
8387 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0
8388 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0))
65f38f15
AM
8389 {
8390 Elf_Internal_Rela outrel;
b34976b6 8391 bfd_boolean skip, relocate;
65f38f15 8392 asection *sreloc;
947216bf 8393 bfd_byte *loc;
1cf1f670 8394 bfd_vma out_off;
65f38f15
AM
8395
8396 /* When generating a dynamic object, these relocations
8397 are copied into the output file to be resolved at run
8398 time. */
8399
b34976b6
AM
8400 skip = FALSE;
8401 relocate = FALSE;
65f38f15 8402
1cf1f670
AM
8403 out_off = _bfd_elf_section_offset (output_bfd, info,
8404 input_section, rel->r_offset);
8405 if (out_off == (bfd_vma) -1)
b34976b6 8406 skip = TRUE;
1cf1f670 8407 else if (out_off == (bfd_vma) -2)
b34976b6 8408 skip = TRUE, relocate = TRUE;
1cf1f670
AM
8409 out_off += (input_section->output_section->vma
8410 + input_section->output_offset);
8411 outrel.r_offset = out_off;
411e1bfb 8412 outrel.r_addend = rel->r_addend;
65f38f15 8413
1cf1f670
AM
8414 /* Optimize unaligned reloc use. */
8415 if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0)
8416 || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0))
8417 r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64;
8418 else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0)
8419 || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0))
8420 r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32;
8421 else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0)
8422 || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0))
8423 r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16;
8424
65f38f15 8425 if (skip)
0bb2d96a 8426 memset (&outrel, 0, sizeof outrel);
f6c52c13 8427 else if (!SYMBOL_REFERENCES_LOCAL (info, h)
0b13192e
AM
8428 && !is_opd
8429 && r_type != R_PPC64_TOC)
0bb2d96a 8430 outrel.r_info = ELF64_R_INFO (h->dynindx, r_type);
65f38f15
AM
8431 else
8432 {
41bd81ab
AM
8433 /* This symbol is local, or marked to become local,
8434 or this is an opd section reloc which must point
8435 at a local function. */
65f38f15 8436 outrel.r_addend += relocation;
e86ce104 8437 if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC)
65f38f15 8438 {
3fad3c7c 8439 if (is_opd && h != NULL)
afbe61cf
AM
8440 {
8441 /* Lie about opd entries. This case occurs
8442 when building shared libraries and we
8443 reference a function in another shared
3fad3c7c
AM
8444 lib. The same thing happens for a weak
8445 definition in an application that's
8446 overridden by a strong definition in a
8447 shared lib. (I believe this is a generic
8448 bug in binutils handling of weak syms.)
8449 In these cases we won't use the opd
1e2f5b6e 8450 entry in this lib. */
b34976b6 8451 unresolved_reloc = FALSE;
afbe61cf 8452 }
65f38f15 8453 outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE);
81407a69
AM
8454
8455 /* We need to relocate .opd contents for ld.so.
8456 Prelink also wants simple and consistent rules
8457 for relocs. This make all RELATIVE relocs have
8458 *r_offset equal to r_addend. */
8459 relocate = TRUE;
65f38f15
AM
8460 }
8461 else
8462 {
8463 long indx = 0;
8464
41bd81ab 8465 if (bfd_is_abs_section (sec))
65f38f15
AM
8466 ;
8467 else if (sec == NULL || sec->owner == NULL)
8468 {
8469 bfd_set_error (bfd_error_bad_value);
b34976b6 8470 return FALSE;
65f38f15
AM
8471 }
8472 else
8473 {
8474 asection *osec;
8475
8476 osec = sec->output_section;
8477 indx = elf_section_data (osec)->dynindx;
8478
8479 /* We are turning this relocation into one
8480 against a section symbol, so subtract out
8481 the output section's address but not the
8482 offset of the input section in the output
8483 section. */
8484 outrel.r_addend -= osec->vma;
8485 }
8486
8487 outrel.r_info = ELF64_R_INFO (indx, r_type);
8488 }
8489 }
8490
8491 sreloc = elf_section_data (input_section)->sreloc;
8492 if (sreloc == NULL)
8493 abort ();
8494
947216bf
AM
8495 loc = sreloc->contents;
8496 loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15
AM
8497 bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc);
8498
8499 /* If this reloc is against an external symbol, it will
8500 be computed at runtime, so there's no need to do
81407a69
AM
8501 anything now. However, for the sake of prelink ensure
8502 that the section contents are a known value. */
65f38f15 8503 if (! relocate)
81407a69
AM
8504 {
8505 unresolved_reloc = FALSE;
8506 /* The value chosen here is quite arbitrary as ld.so
8507 ignores section contents except for the special
8508 case of .opd where the contents might be accessed
8509 before relocation. Choose zero, as that won't
8510 cause reloc overflow. */
8511 relocation = 0;
8512 addend = 0;
8513 /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs
8514 to improve backward compatibility with older
8515 versions of ld. */
8516 if (r_type == R_PPC64_ADDR64)
8517 addend = outrel.r_addend;
8518 /* Adjust pc_relative relocs to have zero in *r_offset. */
4ce794b7 8519 else if (ppc64_elf_howto_table[r_type]->pc_relative)
000732f7
AM
8520 addend = (input_section->output_section->vma
8521 + input_section->output_offset
8522 + rel->r_offset);
81407a69 8523 }
65f38f15 8524 }
5bd4f169
AM
8525 break;
8526
65f38f15
AM
8527 case R_PPC64_COPY:
8528 case R_PPC64_GLOB_DAT:
8529 case R_PPC64_JMP_SLOT:
8530 case R_PPC64_RELATIVE:
8531 /* We shouldn't ever see these dynamic relocs in relocatable
8532 files. */
ae9a127f 8533 /* Fall through. */
65f38f15
AM
8534
8535 case R_PPC64_PLTGOT16:
8536 case R_PPC64_PLTGOT16_DS:
8537 case R_PPC64_PLTGOT16_HA:
8538 case R_PPC64_PLTGOT16_HI:
8539 case R_PPC64_PLTGOT16_LO:
8540 case R_PPC64_PLTGOT16_LO_DS:
8541 case R_PPC64_PLTREL32:
8542 case R_PPC64_PLTREL64:
8543 /* These ones haven't been implemented yet. */
8544
8545 (*_bfd_error_handler)
7b609f53 8546 (_("%s: relocation %s is not supported for symbol %s."),
65f38f15 8547 bfd_archive_filename (input_bfd),
4ce794b7 8548 ppc64_elf_howto_table[r_type]->name, sym_name);
5bd4f169
AM
8549
8550 bfd_set_error (bfd_error_invalid_operation);
b34976b6 8551 ret = FALSE;
5bd4f169 8552 continue;
65f38f15 8553 }
5bd4f169 8554
65f38f15
AM
8555 /* Do any further special processing. */
8556 switch (r_type)
8557 {
8558 default:
8559 break;
8560
8561 case R_PPC64_ADDR16_HA:
8562 case R_PPC64_ADDR16_HIGHERA:
8563 case R_PPC64_ADDR16_HIGHESTA:
86bbe32f
AM
8564 case R_PPC64_GOT16_HA:
8565 case R_PPC64_PLTGOT16_HA:
65f38f15
AM
8566 case R_PPC64_PLT16_HA:
8567 case R_PPC64_TOC16_HA:
8568 case R_PPC64_SECTOFF_HA:
411e1bfb
AM
8569 case R_PPC64_TPREL16_HA:
8570 case R_PPC64_DTPREL16_HA:
8571 case R_PPC64_GOT_TLSGD16_HA:
8572 case R_PPC64_GOT_TLSLD16_HA:
8573 case R_PPC64_GOT_TPREL16_HA:
8574 case R_PPC64_GOT_DTPREL16_HA:
8575 case R_PPC64_TPREL16_HIGHER:
8576 case R_PPC64_TPREL16_HIGHERA:
8577 case R_PPC64_TPREL16_HIGHEST:
8578 case R_PPC64_TPREL16_HIGHESTA:
8579 case R_PPC64_DTPREL16_HIGHER:
8580 case R_PPC64_DTPREL16_HIGHERA:
8581 case R_PPC64_DTPREL16_HIGHEST:
8582 case R_PPC64_DTPREL16_HIGHESTA:
65f38f15
AM
8583 /* It's just possible that this symbol is a weak symbol
8584 that's not actually defined anywhere. In that case,
8585 'sec' would be NULL, and we should leave the symbol
8586 alone (it will be set to zero elsewhere in the link). */
8587 if (sec != NULL)
e515b051
AM
8588 /* Add 0x10000 if sign bit in 0:15 is set.
8589 Bits 0:15 are not used. */
8590 addend += 0x8000;
65f38f15
AM
8591 break;
8592
8593 case R_PPC64_ADDR16_DS:
8594 case R_PPC64_ADDR16_LO_DS:
8595 case R_PPC64_GOT16_DS:
8596 case R_PPC64_GOT16_LO_DS:
8597 case R_PPC64_PLT16_LO_DS:
8598 case R_PPC64_SECTOFF_DS:
8599 case R_PPC64_SECTOFF_LO_DS:
8600 case R_PPC64_TOC16_DS:
8601 case R_PPC64_TOC16_LO_DS:
8602 case R_PPC64_PLTGOT16_DS:
8603 case R_PPC64_PLTGOT16_LO_DS:
411e1bfb
AM
8604 case R_PPC64_GOT_TPREL16_DS:
8605 case R_PPC64_GOT_TPREL16_LO_DS:
8606 case R_PPC64_GOT_DTPREL16_DS:
8607 case R_PPC64_GOT_DTPREL16_LO_DS:
8608 case R_PPC64_TPREL16_DS:
8609 case R_PPC64_TPREL16_LO_DS:
8610 case R_PPC64_DTPREL16_DS:
8611 case R_PPC64_DTPREL16_LO_DS:
adadcc0c
AM
8612 insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
8613 mask = 3;
8614 /* If this reloc is against an lq insn, then the value must be
8615 a multiple of 16. This is somewhat of a hack, but the
8616 "correct" way to do this by defining _DQ forms of all the
8617 _DS relocs bloats all reloc switches in this file. It
8618 doesn't seem to make much sense to use any of these relocs
8619 in data, so testing the insn should be safe. */
494dac0c 8620 if ((insn & (0x3f << 26)) == (56u << 26))
adadcc0c
AM
8621 mask = 15;
8622 if (((relocation + addend) & mask) != 0)
65f38f15
AM
8623 {
8624 (*_bfd_error_handler)
adadcc0c 8625 (_("%s: error: relocation %s not a multiple of %d"),
65f38f15 8626 bfd_archive_filename (input_bfd),
4ce794b7 8627 ppc64_elf_howto_table[r_type]->name,
adadcc0c 8628 mask + 1);
65f38f15 8629 bfd_set_error (bfd_error_bad_value);
b34976b6 8630 ret = FALSE;
65f38f15
AM
8631 continue;
8632 }
8633 break;
721956f4
AM
8634
8635 case R_PPC64_REL14:
8636 case R_PPC64_REL14_BRNTAKEN:
8637 case R_PPC64_REL14_BRTAKEN:
8638 max_br_offset = 1 << 15;
8639 goto branch_check;
8640
8641 case R_PPC64_REL24:
8642 max_br_offset = 1 << 25;
8643
8644 branch_check:
ad8e1ba5
AM
8645 /* If the branch is out of reach or the TOC register needs
8646 adjusting, then redirect the call to the local stub for
8647 this function. */
411e1bfb 8648 from = (rel->r_offset
721956f4
AM
8649 + input_section->output_offset
8650 + input_section->output_section->vma);
ad8e1ba5
AM
8651 if ((relocation + addend - from + max_br_offset >= 2 * max_br_offset
8652 || (sec != NULL
8653 && sec->output_section != NULL
8f3bab57 8654 && sec->id <= htab->top_id
ad8e1ba5
AM
8655 && (htab->stub_group[sec->id].toc_off
8656 != htab->stub_group[input_section->id].toc_off)))
721956f4
AM
8657 && (stub_entry = ppc_get_stub_entry (input_section, sec, h,
8658 rel, htab)) != NULL)
8659 {
8660 /* Munge up the value and addend so that we call the stub
8661 rather than the procedure directly. */
8662 relocation = (stub_entry->stub_offset
8663 + stub_entry->stub_sec->output_offset
8664 + stub_entry->stub_sec->output_section->vma);
8665 addend = 0;
8666 }
8667 break;
5bd4f169
AM
8668 }
8669
239e1f3a
AM
8670 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
8671 because such sections are not SEC_ALLOC and thus ld.so will
8672 not process them. */
65f38f15 8673 if (unresolved_reloc
239e1f3a 8674 && !((input_section->flags & SEC_DEBUGGING) != 0
65f38f15 8675 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
9c07fe7c
AM
8676 {
8677 (*_bfd_error_handler)
7b609f53 8678 (_("%s(%s+0x%lx): unresolvable %s relocation against symbol `%s'"),
9c07fe7c
AM
8679 bfd_archive_filename (input_bfd),
8680 bfd_get_section_name (input_bfd, input_section),
8681 (long) rel->r_offset,
7b609f53 8682 ppc64_elf_howto_table[(int) r_type]->name,
9c07fe7c 8683 h->root.root.string);
b34976b6 8684 ret = FALSE;
9c07fe7c 8685 }
5bd4f169 8686
65f38f15 8687 r = _bfd_final_link_relocate (ppc64_elf_howto_table[(int) r_type],
5bd4f169
AM
8688 input_bfd,
8689 input_section,
8690 contents,
411e1bfb 8691 rel->r_offset,
5bd4f169
AM
8692 relocation,
8693 addend);
8694
ef60b7ff 8695 if (r != bfd_reloc_ok)
5bd4f169 8696 {
cd27b276
AM
8697 if (sym_name == NULL)
8698 sym_name = "(null)";
8699 if (r == bfd_reloc_overflow)
5bd4f169 8700 {
cd27b276
AM
8701 if (warned)
8702 continue;
8703 if (h != NULL
8704 && h->root.type == bfd_link_hash_undefweak
4ce794b7 8705 && ppc64_elf_howto_table[r_type]->pc_relative)
5bd4f169
AM
8706 {
8707 /* Assume this is a call protected by other code that
8708 detects the symbol is undefined. If this is the case,
8709 we can safely ignore the overflow. If not, the
8710 program is hosed anyway, and a little warning isn't
8711 going to help. */
8712
8713 continue;
8714 }
8715
ef60b7ff 8716 if (!((*info->callbacks->reloc_overflow)
4ce794b7 8717 (info, sym_name, ppc64_elf_howto_table[r_type]->name,
411e1bfb 8718 rel->r_addend, input_bfd, input_section, rel->r_offset)))
b34976b6 8719 return FALSE;
ef60b7ff
AM
8720 }
8721 else
8722 {
8723 (*_bfd_error_handler)
7b609f53 8724 (_("%s(%s+0x%lx): %s reloc against `%s': error %d"),
ef60b7ff
AM
8725 bfd_archive_filename (input_bfd),
8726 bfd_get_section_name (input_bfd, input_section),
7b609f53 8727 (long) rel->r_offset,
4ce794b7 8728 ppc64_elf_howto_table[r_type]->name,
7b609f53
AM
8729 sym_name,
8730 (int) r);
b34976b6 8731 ret = FALSE;
ef60b7ff 8732 }
5bd4f169 8733 }
5bd4f169
AM
8734 }
8735
5bd4f169
AM
8736 return ret;
8737}
8738
754021d0
AM
8739/* Adjust the value of any local symbols in opd sections. */
8740
8741static bfd_boolean
8742ppc64_elf_output_symbol_hook (struct bfd_link_info *info,
8743 const char *name ATTRIBUTE_UNUSED,
8744 Elf_Internal_Sym *elfsym,
8745 asection *input_sec,
8746 struct elf_link_hash_entry *h)
8747{
8748 long *adjust;
8749 bfd_vma value;
8750
8751 if (h != NULL
8752 || input_sec == NULL
8753 || ppc64_elf_section_data (input_sec) == NULL
8754 || (adjust = ppc64_elf_section_data (input_sec)->opd.adjust) == NULL)
8755 return TRUE;
8756
8757 value = elfsym->st_value - input_sec->output_offset;
8758 if (!info->relocatable)
8759 value -= input_sec->output_section->vma;
8760
8761 elfsym->st_value += adjust[value / 24];
8762 return TRUE;
8763}
8764
5bd4f169
AM
8765/* Finish up dynamic symbol handling. We set the contents of various
8766 dynamic sections here. */
8767
b34976b6 8768static bfd_boolean
4ce794b7
AM
8769ppc64_elf_finish_dynamic_symbol (bfd *output_bfd,
8770 struct bfd_link_info *info,
8771 struct elf_link_hash_entry *h,
8772 Elf_Internal_Sym *sym)
5bd4f169 8773{
65f38f15 8774 struct ppc_link_hash_table *htab;
5bd4f169
AM
8775 bfd *dynobj;
8776
65f38f15
AM
8777 htab = ppc_hash_table (info);
8778 dynobj = htab->elf.dynobj;
5bd4f169 8779
411e1bfb 8780 if (((struct ppc_link_hash_entry *) h)->is_func_descriptor)
5bd4f169 8781 {
411e1bfb 8782 struct plt_entry *ent;
65f38f15 8783 Elf_Internal_Rela rela;
947216bf 8784 bfd_byte *loc;
5bd4f169 8785
411e1bfb
AM
8786 for (ent = h->plt.plist; ent != NULL; ent = ent->next)
8787 if (ent->plt.offset != (bfd_vma) -1)
8788 {
8789 /* This symbol has an entry in the procedure linkage
8790 table. Set it up. */
5bd4f169 8791
4ce794b7
AM
8792 if (htab->plt == NULL
8793 || htab->relplt == NULL
8794 || htab->glink == NULL)
411e1bfb 8795 abort ();
5bd4f169 8796
411e1bfb
AM
8797 /* Create a JMP_SLOT reloc to inform the dynamic linker to
8798 fill in the PLT entry. */
4ce794b7
AM
8799 rela.r_offset = (htab->plt->output_section->vma
8800 + htab->plt->output_offset
411e1bfb
AM
8801 + ent->plt.offset);
8802 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT);
8803 rela.r_addend = ent->addend;
5bd4f169 8804
4ce794b7 8805 loc = htab->relplt->contents;
411e1bfb
AM
8806 loc += ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE) / PLT_ENTRY_SIZE
8807 * sizeof (Elf64_External_Rela));
8808 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
8809 }
5bd4f169
AM
8810 }
8811
8812 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
8813 {
5bd4f169 8814 Elf_Internal_Rela rela;
947216bf 8815 bfd_byte *loc;
5bd4f169 8816
65f38f15 8817 /* This symbol needs a copy reloc. Set it up. */
5bd4f169 8818
65f38f15
AM
8819 if (h->dynindx == -1
8820 || (h->root.type != bfd_link_hash_defined
8821 && h->root.type != bfd_link_hash_defweak)
4ce794b7 8822 || htab->relbss == NULL)
65f38f15 8823 abort ();
5bd4f169
AM
8824
8825 rela.r_offset = (h->root.u.def.value
8826 + h->root.u.def.section->output_section->vma
8827 + h->root.u.def.section->output_offset);
8828 rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY);
8829 rela.r_addend = 0;
4ce794b7
AM
8830 loc = htab->relbss->contents;
8831 loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela);
65f38f15 8832 bfd_elf64_swap_reloca_out (output_bfd, &rela, loc);
5bd4f169
AM
8833 }
8834
5bd4f169
AM
8835 /* Mark some specially defined symbols as absolute. */
8836 if (strcmp (h->root.root.string, "_DYNAMIC") == 0)
8837 sym->st_shndx = SHN_ABS;
8838
b34976b6 8839 return TRUE;
5bd4f169
AM
8840}
8841
65f38f15
AM
8842/* Used to decide how to sort relocs in an optimal manner for the
8843 dynamic linker, before writing them out. */
8844
8845static enum elf_reloc_type_class
4ce794b7 8846ppc64_elf_reloc_type_class (const Elf_Internal_Rela *rela)
65f38f15 8847{
04c9666a 8848 enum elf_ppc64_reloc_type r_type;
a33d1f77 8849
4ce794b7 8850 r_type = ELF64_R_TYPE (rela->r_info);
a33d1f77 8851 switch (r_type)
65f38f15
AM
8852 {
8853 case R_PPC64_RELATIVE:
8854 return reloc_class_relative;
8855 case R_PPC64_JMP_SLOT:
8856 return reloc_class_plt;
8857 case R_PPC64_COPY:
8858 return reloc_class_copy;
8859 default:
8860 return reloc_class_normal;
8861 }
8862}
8863
5bd4f169
AM
8864/* Finish up the dynamic sections. */
8865
b34976b6 8866static bfd_boolean
4ce794b7
AM
8867ppc64_elf_finish_dynamic_sections (bfd *output_bfd,
8868 struct bfd_link_info *info)
5bd4f169 8869{
65f38f15
AM
8870 struct ppc_link_hash_table *htab;
8871 bfd *dynobj;
5bd4f169 8872 asection *sdyn;
5bd4f169 8873
65f38f15
AM
8874 htab = ppc_hash_table (info);
8875 dynobj = htab->elf.dynobj;
5bd4f169
AM
8876 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
8877
65f38f15 8878 if (htab->elf.dynamic_sections_created)
5bd4f169 8879 {
5bd4f169
AM
8880 Elf64_External_Dyn *dyncon, *dynconend;
8881
4ce794b7 8882 if (sdyn == NULL || htab->got == NULL)
65f38f15 8883 abort ();
5bd4f169
AM
8884
8885 dyncon = (Elf64_External_Dyn *) sdyn->contents;
eea6121a 8886 dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size);
5bd4f169
AM
8887 for (; dyncon < dynconend; dyncon++)
8888 {
8889 Elf_Internal_Dyn dyn;
19397422 8890 asection *s;
5bd4f169
AM
8891
8892 bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn);
8893
8894 switch (dyn.d_tag)
8895 {
65f38f15
AM
8896 default:
8897 continue;
5bd4f169 8898
5d1634d7 8899 case DT_PPC64_GLINK:
4ce794b7 8900 s = htab->glink;
6348e046 8901 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
ad8e1ba5
AM
8902 /* We stupidly defined DT_PPC64_GLINK to be the start
8903 of glink rather than the first entry point, which is
8904 what ld.so needs, and now have a bigger stub to
8905 support automatic multiple TOCs. */
8906 dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 32;
5d1634d7
AM
8907 break;
8908
19397422
AM
8909 case DT_PPC64_OPD:
8910 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
8911 if (s == NULL)
8912 continue;
8913 dyn.d_un.d_ptr = s->vma;
19397422
AM
8914 break;
8915
8916 case DT_PPC64_OPDSZ:
8917 s = bfd_get_section_by_name (output_bfd, ".opd");
6348e046
AM
8918 if (s == NULL)
8919 continue;
eea6121a 8920 dyn.d_un.d_val = s->size;
19397422
AM
8921 break;
8922
65f38f15 8923 case DT_PLTGOT:
4ce794b7 8924 s = htab->plt;
6348e046 8925 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15
AM
8926 break;
8927
8928 case DT_JMPREL:
4ce794b7 8929 s = htab->relplt;
6348e046 8930 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
65f38f15 8931 break;
5bd4f169 8932
65f38f15 8933 case DT_PLTRELSZ:
eea6121a 8934 dyn.d_un.d_val = htab->relplt->size;
5d1634d7
AM
8935 break;
8936
8937 case DT_RELASZ:
8938 /* Don't count procedure linkage table relocs in the
8939 overall reloc count. */
4ce794b7 8940 s = htab->relplt;
6348e046
AM
8941 if (s == NULL)
8942 continue;
eea6121a 8943 dyn.d_un.d_val -= s->size;
6348e046
AM
8944 break;
8945
8946 case DT_RELA:
8947 /* We may not be using the standard ELF linker script.
8948 If .rela.plt is the first .rela section, we adjust
8949 DT_RELA to not include it. */
4ce794b7 8950 s = htab->relplt;
6348e046
AM
8951 if (s == NULL)
8952 continue;
8953 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
8954 continue;
eea6121a 8955 dyn.d_un.d_ptr += s->size;
65f38f15 8956 break;
5bd4f169 8957 }
5bd4f169 8958
65f38f15 8959 bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon);
5bd4f169 8960 }
5bd4f169
AM
8961 }
8962
eea6121a 8963 if (htab->got != NULL && htab->got->size != 0)
5d1634d7
AM
8964 {
8965 /* Fill in the first entry in the global offset table.
8966 We use it to hold the link-time TOCbase. */
8967 bfd_put_64 (output_bfd,
60ee0d4a 8968 elf_gp (output_bfd) + TOC_BASE_OFF,
4ce794b7 8969 htab->got->contents);
5d1634d7
AM
8970
8971 /* Set .got entry size. */
4ce794b7 8972 elf_section_data (htab->got->output_section)->this_hdr.sh_entsize = 8;
5d1634d7
AM
8973 }
8974
eea6121a 8975 if (htab->plt != NULL && htab->plt->size != 0)
5d1634d7
AM
8976 {
8977 /* Set .plt entry size. */
4ce794b7 8978 elf_section_data (htab->plt->output_section)->this_hdr.sh_entsize
5d1634d7
AM
8979 = PLT_ENTRY_SIZE;
8980 }
8981
e717da7e
AM
8982 /* We need to handle writing out multiple GOT sections ourselves,
8983 since we didn't add them to DYNOBJ. */
8984 while ((dynobj = dynobj->link_next) != NULL)
8985 {
8986 asection *s;
8987 s = ppc64_elf_tdata (dynobj)->got;
8988 if (s != NULL
eea6121a 8989 && s->size != 0
e717da7e
AM
8990 && s->output_section != bfd_abs_section_ptr
8991 && !bfd_set_section_contents (output_bfd, s->output_section,
8992 s->contents, s->output_offset,
eea6121a 8993 s->size))
e717da7e
AM
8994 return FALSE;
8995 s = ppc64_elf_tdata (dynobj)->relgot;
8996 if (s != NULL
eea6121a 8997 && s->size != 0
e717da7e
AM
8998 && s->output_section != bfd_abs_section_ptr
8999 && !bfd_set_section_contents (output_bfd, s->output_section,
9000 s->contents, s->output_offset,
eea6121a 9001 s->size))
e717da7e
AM
9002 return FALSE;
9003 }
f6c52c13 9004
b34976b6 9005 return TRUE;
5bd4f169
AM
9006}
9007
5bd4f169 9008#include "elf64-target.h"
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