Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* Intel 80386/80486-specific support for 32-bit ELF |
b2a8e766 | 2 | Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, |
3eb128b2 | 3 | 2003, 2004, 2005 Free Software Foundation, Inc. |
252b5132 | 4 | |
571fe01f | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
571fe01f NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
252b5132 | 11 | |
571fe01f NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
571fe01f NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
3e110533 | 19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
252b5132 RH |
20 | |
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "bfdlink.h" | |
24 | #include "libbfd.h" | |
25 | #include "elf-bfd.h" | |
eac338cf | 26 | #include "elf-vxworks.h" |
252b5132 | 27 | |
55fd94b0 AM |
28 | /* 386 uses REL relocations instead of RELA. */ |
29 | #define USE_REL 1 | |
252b5132 RH |
30 | |
31 | #include "elf/i386.h" | |
32 | ||
33 | static reloc_howto_type elf_howto_table[]= | |
34 | { | |
b34976b6 | 35 | HOWTO(R_386_NONE, 0, 0, 0, FALSE, 0, complain_overflow_bitfield, |
1b452ec6 | 36 | bfd_elf_generic_reloc, "R_386_NONE", |
b34976b6 AM |
37 | TRUE, 0x00000000, 0x00000000, FALSE), |
38 | HOWTO(R_386_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 39 | bfd_elf_generic_reloc, "R_386_32", |
b34976b6 AM |
40 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
41 | HOWTO(R_386_PC32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
1b452ec6 | 42 | bfd_elf_generic_reloc, "R_386_PC32", |
b34976b6 AM |
43 | TRUE, 0xffffffff, 0xffffffff, TRUE), |
44 | HOWTO(R_386_GOT32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 45 | bfd_elf_generic_reloc, "R_386_GOT32", |
b34976b6 AM |
46 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
47 | HOWTO(R_386_PLT32, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
1b452ec6 | 48 | bfd_elf_generic_reloc, "R_386_PLT32", |
b34976b6 AM |
49 | TRUE, 0xffffffff, 0xffffffff, TRUE), |
50 | HOWTO(R_386_COPY, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 51 | bfd_elf_generic_reloc, "R_386_COPY", |
b34976b6 AM |
52 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
53 | HOWTO(R_386_GLOB_DAT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 54 | bfd_elf_generic_reloc, "R_386_GLOB_DAT", |
b34976b6 AM |
55 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
56 | HOWTO(R_386_JUMP_SLOT, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 57 | bfd_elf_generic_reloc, "R_386_JUMP_SLOT", |
b34976b6 AM |
58 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
59 | HOWTO(R_386_RELATIVE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 60 | bfd_elf_generic_reloc, "R_386_RELATIVE", |
b34976b6 AM |
61 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
62 | HOWTO(R_386_GOTOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 63 | bfd_elf_generic_reloc, "R_386_GOTOFF", |
b34976b6 AM |
64 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
65 | HOWTO(R_386_GOTPC, 0, 2, 32, TRUE, 0, complain_overflow_bitfield, | |
1b452ec6 | 66 | bfd_elf_generic_reloc, "R_386_GOTPC", |
b34976b6 | 67 | TRUE, 0xffffffff, 0xffffffff, TRUE), |
1b452ec6 | 68 | |
dc47f327 AM |
69 | /* We have a gap in the reloc numbers here. |
70 | R_386_standard counts the number up to this point, and | |
71 | R_386_ext_offset is the value to subtract from a reloc type of | |
72 | R_386_16 thru R_386_PC8 to form an index into this table. */ | |
55fd94b0 AM |
73 | #define R_386_standard (R_386_GOTPC + 1) |
74 | #define R_386_ext_offset (R_386_TLS_TPOFF - R_386_standard) | |
1b452ec6 | 75 | |
37e55690 | 76 | /* These relocs are a GNU extension. */ |
b34976b6 | 77 | HOWTO(R_386_TLS_TPOFF, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, |
37e55690 | 78 | bfd_elf_generic_reloc, "R_386_TLS_TPOFF", |
b34976b6 AM |
79 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
80 | HOWTO(R_386_TLS_IE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
37e55690 | 81 | bfd_elf_generic_reloc, "R_386_TLS_IE", |
b34976b6 AM |
82 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
83 | HOWTO(R_386_TLS_GOTIE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
37e55690 | 84 | bfd_elf_generic_reloc, "R_386_TLS_GOTIE", |
b34976b6 AM |
85 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
86 | HOWTO(R_386_TLS_LE, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 87 | bfd_elf_generic_reloc, "R_386_TLS_LE", |
b34976b6 AM |
88 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
89 | HOWTO(R_386_TLS_GD, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 90 | bfd_elf_generic_reloc, "R_386_TLS_GD", |
b34976b6 AM |
91 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
92 | HOWTO(R_386_TLS_LDM, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 93 | bfd_elf_generic_reloc, "R_386_TLS_LDM", |
b34976b6 AM |
94 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
95 | HOWTO(R_386_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 96 | bfd_elf_generic_reloc, "R_386_16", |
b34976b6 AM |
97 | TRUE, 0xffff, 0xffff, FALSE), |
98 | HOWTO(R_386_PC16, 0, 1, 16, TRUE, 0, complain_overflow_bitfield, | |
1b452ec6 | 99 | bfd_elf_generic_reloc, "R_386_PC16", |
b34976b6 AM |
100 | TRUE, 0xffff, 0xffff, TRUE), |
101 | HOWTO(R_386_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, | |
1b452ec6 | 102 | bfd_elf_generic_reloc, "R_386_8", |
b34976b6 AM |
103 | TRUE, 0xff, 0xff, FALSE), |
104 | HOWTO(R_386_PC8, 0, 0, 8, TRUE, 0, complain_overflow_signed, | |
1b452ec6 | 105 | bfd_elf_generic_reloc, "R_386_PC8", |
b34976b6 | 106 | TRUE, 0xff, 0xff, TRUE), |
dc47f327 | 107 | |
55fd94b0 AM |
108 | #define R_386_ext (R_386_PC8 + 1 - R_386_ext_offset) |
109 | #define R_386_tls_offset (R_386_TLS_LDO_32 - R_386_ext) | |
13ae64f3 | 110 | /* These are common with Solaris TLS implementation. */ |
b34976b6 | 111 | HOWTO(R_386_TLS_LDO_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, |
13ae64f3 | 112 | bfd_elf_generic_reloc, "R_386_TLS_LDO_32", |
b34976b6 AM |
113 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
114 | HOWTO(R_386_TLS_IE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 115 | bfd_elf_generic_reloc, "R_386_TLS_IE_32", |
b34976b6 AM |
116 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
117 | HOWTO(R_386_TLS_LE_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 118 | bfd_elf_generic_reloc, "R_386_TLS_LE_32", |
b34976b6 AM |
119 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
120 | HOWTO(R_386_TLS_DTPMOD32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 121 | bfd_elf_generic_reloc, "R_386_TLS_DTPMOD32", |
b34976b6 AM |
122 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
123 | HOWTO(R_386_TLS_DTPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 124 | bfd_elf_generic_reloc, "R_386_TLS_DTPOFF32", |
b34976b6 AM |
125 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
126 | HOWTO(R_386_TLS_TPOFF32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, | |
13ae64f3 | 127 | bfd_elf_generic_reloc, "R_386_TLS_TPOFF32", |
b34976b6 | 128 | TRUE, 0xffffffff, 0xffffffff, FALSE), |
13ae64f3 JJ |
129 | |
130 | /* Another gap. */ | |
55fd94b0 AM |
131 | #define R_386_tls (R_386_TLS_TPOFF32 + 1 - R_386_tls_offset) |
132 | #define R_386_vt_offset (R_386_GNU_VTINHERIT - R_386_tls) | |
252b5132 RH |
133 | |
134 | /* GNU extension to record C++ vtable hierarchy. */ | |
252b5132 RH |
135 | HOWTO (R_386_GNU_VTINHERIT, /* type */ |
136 | 0, /* rightshift */ | |
137 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
138 | 0, /* bitsize */ | |
b34976b6 | 139 | FALSE, /* pc_relative */ |
252b5132 RH |
140 | 0, /* bitpos */ |
141 | complain_overflow_dont, /* complain_on_overflow */ | |
142 | NULL, /* special_function */ | |
143 | "R_386_GNU_VTINHERIT", /* name */ | |
b34976b6 | 144 | FALSE, /* partial_inplace */ |
252b5132 RH |
145 | 0, /* src_mask */ |
146 | 0, /* dst_mask */ | |
b34976b6 | 147 | FALSE), /* pcrel_offset */ |
252b5132 RH |
148 | |
149 | /* GNU extension to record C++ vtable member usage. */ | |
252b5132 RH |
150 | HOWTO (R_386_GNU_VTENTRY, /* type */ |
151 | 0, /* rightshift */ | |
152 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
153 | 0, /* bitsize */ | |
b34976b6 | 154 | FALSE, /* pc_relative */ |
252b5132 RH |
155 | 0, /* bitpos */ |
156 | complain_overflow_dont, /* complain_on_overflow */ | |
157 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
158 | "R_386_GNU_VTENTRY", /* name */ | |
b34976b6 | 159 | FALSE, /* partial_inplace */ |
252b5132 RH |
160 | 0, /* src_mask */ |
161 | 0, /* dst_mask */ | |
b34976b6 | 162 | FALSE) /* pcrel_offset */ |
dc47f327 | 163 | |
55fd94b0 | 164 | #define R_386_vt (R_386_GNU_VTENTRY + 1 - R_386_vt_offset) |
dc47f327 AM |
165 | |
166 | }; | |
167 | ||
252b5132 | 168 | #ifdef DEBUG_GEN_RELOC |
55fd94b0 AM |
169 | #define TRACE(str) \ |
170 | fprintf (stderr, "i386 bfd reloc lookup %d (%s)\n", code, str) | |
252b5132 RH |
171 | #else |
172 | #define TRACE(str) | |
173 | #endif | |
174 | ||
175 | static reloc_howto_type * | |
55fd94b0 AM |
176 | elf_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
177 | bfd_reloc_code_real_type code) | |
252b5132 RH |
178 | { |
179 | switch (code) | |
180 | { | |
181 | case BFD_RELOC_NONE: | |
182 | TRACE ("BFD_RELOC_NONE"); | |
55fd94b0 | 183 | return &elf_howto_table[R_386_NONE]; |
252b5132 RH |
184 | |
185 | case BFD_RELOC_32: | |
186 | TRACE ("BFD_RELOC_32"); | |
55fd94b0 | 187 | return &elf_howto_table[R_386_32]; |
252b5132 RH |
188 | |
189 | case BFD_RELOC_CTOR: | |
190 | TRACE ("BFD_RELOC_CTOR"); | |
55fd94b0 | 191 | return &elf_howto_table[R_386_32]; |
252b5132 RH |
192 | |
193 | case BFD_RELOC_32_PCREL: | |
194 | TRACE ("BFD_RELOC_PC32"); | |
55fd94b0 | 195 | return &elf_howto_table[R_386_PC32]; |
252b5132 RH |
196 | |
197 | case BFD_RELOC_386_GOT32: | |
198 | TRACE ("BFD_RELOC_386_GOT32"); | |
55fd94b0 | 199 | return &elf_howto_table[R_386_GOT32]; |
252b5132 RH |
200 | |
201 | case BFD_RELOC_386_PLT32: | |
202 | TRACE ("BFD_RELOC_386_PLT32"); | |
55fd94b0 | 203 | return &elf_howto_table[R_386_PLT32]; |
252b5132 RH |
204 | |
205 | case BFD_RELOC_386_COPY: | |
206 | TRACE ("BFD_RELOC_386_COPY"); | |
55fd94b0 | 207 | return &elf_howto_table[R_386_COPY]; |
252b5132 RH |
208 | |
209 | case BFD_RELOC_386_GLOB_DAT: | |
210 | TRACE ("BFD_RELOC_386_GLOB_DAT"); | |
55fd94b0 | 211 | return &elf_howto_table[R_386_GLOB_DAT]; |
252b5132 RH |
212 | |
213 | case BFD_RELOC_386_JUMP_SLOT: | |
214 | TRACE ("BFD_RELOC_386_JUMP_SLOT"); | |
55fd94b0 | 215 | return &elf_howto_table[R_386_JUMP_SLOT]; |
252b5132 RH |
216 | |
217 | case BFD_RELOC_386_RELATIVE: | |
218 | TRACE ("BFD_RELOC_386_RELATIVE"); | |
55fd94b0 | 219 | return &elf_howto_table[R_386_RELATIVE]; |
252b5132 RH |
220 | |
221 | case BFD_RELOC_386_GOTOFF: | |
222 | TRACE ("BFD_RELOC_386_GOTOFF"); | |
55fd94b0 | 223 | return &elf_howto_table[R_386_GOTOFF]; |
252b5132 RH |
224 | |
225 | case BFD_RELOC_386_GOTPC: | |
226 | TRACE ("BFD_RELOC_386_GOTPC"); | |
55fd94b0 | 227 | return &elf_howto_table[R_386_GOTPC]; |
252b5132 | 228 | |
37e55690 JJ |
229 | /* These relocs are a GNU extension. */ |
230 | case BFD_RELOC_386_TLS_TPOFF: | |
231 | TRACE ("BFD_RELOC_386_TLS_TPOFF"); | |
55fd94b0 | 232 | return &elf_howto_table[R_386_TLS_TPOFF - R_386_ext_offset]; |
37e55690 JJ |
233 | |
234 | case BFD_RELOC_386_TLS_IE: | |
235 | TRACE ("BFD_RELOC_386_TLS_IE"); | |
55fd94b0 | 236 | return &elf_howto_table[R_386_TLS_IE - R_386_ext_offset]; |
37e55690 JJ |
237 | |
238 | case BFD_RELOC_386_TLS_GOTIE: | |
239 | TRACE ("BFD_RELOC_386_TLS_GOTIE"); | |
55fd94b0 | 240 | return &elf_howto_table[R_386_TLS_GOTIE - R_386_ext_offset]; |
37e55690 | 241 | |
13ae64f3 JJ |
242 | case BFD_RELOC_386_TLS_LE: |
243 | TRACE ("BFD_RELOC_386_TLS_LE"); | |
55fd94b0 | 244 | return &elf_howto_table[R_386_TLS_LE - R_386_ext_offset]; |
13ae64f3 JJ |
245 | |
246 | case BFD_RELOC_386_TLS_GD: | |
247 | TRACE ("BFD_RELOC_386_TLS_GD"); | |
55fd94b0 | 248 | return &elf_howto_table[R_386_TLS_GD - R_386_ext_offset]; |
13ae64f3 JJ |
249 | |
250 | case BFD_RELOC_386_TLS_LDM: | |
251 | TRACE ("BFD_RELOC_386_TLS_LDM"); | |
55fd94b0 | 252 | return &elf_howto_table[R_386_TLS_LDM - R_386_ext_offset]; |
13ae64f3 | 253 | |
252b5132 RH |
254 | case BFD_RELOC_16: |
255 | TRACE ("BFD_RELOC_16"); | |
55fd94b0 | 256 | return &elf_howto_table[R_386_16 - R_386_ext_offset]; |
252b5132 RH |
257 | |
258 | case BFD_RELOC_16_PCREL: | |
259 | TRACE ("BFD_RELOC_16_PCREL"); | |
55fd94b0 | 260 | return &elf_howto_table[R_386_PC16 - R_386_ext_offset]; |
252b5132 RH |
261 | |
262 | case BFD_RELOC_8: | |
263 | TRACE ("BFD_RELOC_8"); | |
55fd94b0 | 264 | return &elf_howto_table[R_386_8 - R_386_ext_offset]; |
252b5132 RH |
265 | |
266 | case BFD_RELOC_8_PCREL: | |
267 | TRACE ("BFD_RELOC_8_PCREL"); | |
55fd94b0 | 268 | return &elf_howto_table[R_386_PC8 - R_386_ext_offset]; |
252b5132 | 269 | |
13ae64f3 JJ |
270 | /* Common with Sun TLS implementation. */ |
271 | case BFD_RELOC_386_TLS_LDO_32: | |
272 | TRACE ("BFD_RELOC_386_TLS_LDO_32"); | |
55fd94b0 | 273 | return &elf_howto_table[R_386_TLS_LDO_32 - R_386_tls_offset]; |
13ae64f3 JJ |
274 | |
275 | case BFD_RELOC_386_TLS_IE_32: | |
276 | TRACE ("BFD_RELOC_386_TLS_IE_32"); | |
55fd94b0 | 277 | return &elf_howto_table[R_386_TLS_IE_32 - R_386_tls_offset]; |
13ae64f3 JJ |
278 | |
279 | case BFD_RELOC_386_TLS_LE_32: | |
280 | TRACE ("BFD_RELOC_386_TLS_LE_32"); | |
55fd94b0 | 281 | return &elf_howto_table[R_386_TLS_LE_32 - R_386_tls_offset]; |
13ae64f3 JJ |
282 | |
283 | case BFD_RELOC_386_TLS_DTPMOD32: | |
284 | TRACE ("BFD_RELOC_386_TLS_DTPMOD32"); | |
55fd94b0 | 285 | return &elf_howto_table[R_386_TLS_DTPMOD32 - R_386_tls_offset]; |
13ae64f3 JJ |
286 | |
287 | case BFD_RELOC_386_TLS_DTPOFF32: | |
288 | TRACE ("BFD_RELOC_386_TLS_DTPOFF32"); | |
55fd94b0 | 289 | return &elf_howto_table[R_386_TLS_DTPOFF32 - R_386_tls_offset]; |
13ae64f3 JJ |
290 | |
291 | case BFD_RELOC_386_TLS_TPOFF32: | |
292 | TRACE ("BFD_RELOC_386_TLS_TPOFF32"); | |
55fd94b0 | 293 | return &elf_howto_table[R_386_TLS_TPOFF32 - R_386_tls_offset]; |
13ae64f3 | 294 | |
252b5132 RH |
295 | case BFD_RELOC_VTABLE_INHERIT: |
296 | TRACE ("BFD_RELOC_VTABLE_INHERIT"); | |
55fd94b0 | 297 | return &elf_howto_table[R_386_GNU_VTINHERIT - R_386_vt_offset]; |
252b5132 RH |
298 | |
299 | case BFD_RELOC_VTABLE_ENTRY: | |
300 | TRACE ("BFD_RELOC_VTABLE_ENTRY"); | |
55fd94b0 | 301 | return &elf_howto_table[R_386_GNU_VTENTRY - R_386_vt_offset]; |
252b5132 RH |
302 | |
303 | default: | |
304 | break; | |
305 | } | |
306 | ||
307 | TRACE ("Unknown"); | |
308 | return 0; | |
309 | } | |
310 | ||
252b5132 | 311 | static void |
55fd94b0 AM |
312 | elf_i386_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, |
313 | arelent *cache_ptr, | |
314 | Elf_Internal_Rela *dst) | |
252b5132 | 315 | { |
dc47f327 AM |
316 | unsigned int r_type = ELF32_R_TYPE (dst->r_info); |
317 | unsigned int indx; | |
318 | ||
319 | if ((indx = r_type) >= R_386_standard | |
320 | && ((indx = r_type - R_386_ext_offset) - R_386_standard | |
321 | >= R_386_ext - R_386_standard) | |
13ae64f3 JJ |
322 | && ((indx = r_type - R_386_tls_offset) - R_386_ext |
323 | >= R_386_tls - R_386_ext) | |
324 | && ((indx = r_type - R_386_vt_offset) - R_386_tls | |
325 | >= R_386_vt - R_386_tls)) | |
252b5132 | 326 | { |
d003868e AM |
327 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), |
328 | abfd, (int) r_type); | |
55fd94b0 | 329 | indx = R_386_NONE; |
252b5132 | 330 | } |
dc47f327 | 331 | cache_ptr->howto = &elf_howto_table[indx]; |
252b5132 RH |
332 | } |
333 | ||
334 | /* Return whether a symbol name implies a local label. The UnixWare | |
335 | 2.1 cc generates temporary symbols that start with .X, so we | |
336 | recognize them here. FIXME: do other SVR4 compilers also use .X?. | |
337 | If so, we should move the .X recognition into | |
338 | _bfd_elf_is_local_label_name. */ | |
339 | ||
b34976b6 | 340 | static bfd_boolean |
55fd94b0 | 341 | elf_i386_is_local_label_name (bfd *abfd, const char *name) |
252b5132 RH |
342 | { |
343 | if (name[0] == '.' && name[1] == 'X') | |
b34976b6 | 344 | return TRUE; |
252b5132 RH |
345 | |
346 | return _bfd_elf_is_local_label_name (abfd, name); | |
347 | } | |
348 | \f | |
38701953 | 349 | /* Support for core dump NOTE sections. */ |
61adc1a4 | 350 | |
b34976b6 | 351 | static bfd_boolean |
55fd94b0 | 352 | elf_i386_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
38701953 AM |
353 | { |
354 | int offset; | |
eea6121a | 355 | size_t size; |
38701953 | 356 | |
61adc1a4 | 357 | if (note->namesz == 8 && strcmp (note->namedata, "FreeBSD") == 0) |
38701953 | 358 | { |
61adc1a4 NC |
359 | int pr_version = bfd_get_32 (abfd, note->descdata); |
360 | ||
361 | if (pr_version != 1) | |
362 | return FALSE; | |
363 | ||
364 | /* pr_cursig */ | |
365 | elf_tdata (abfd)->core_signal = bfd_get_32 (abfd, note->descdata + 20); | |
366 | ||
367 | /* pr_pid */ | |
368 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
369 | ||
370 | /* pr_reg */ | |
371 | offset = 28; | |
eea6121a | 372 | size = bfd_get_32 (abfd, note->descdata + 8); |
61adc1a4 NC |
373 | } |
374 | else | |
375 | { | |
376 | switch (note->descsz) | |
377 | { | |
378 | default: | |
379 | return FALSE; | |
38701953 | 380 | |
61adc1a4 NC |
381 | case 144: /* Linux/i386 */ |
382 | /* pr_cursig */ | |
383 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
38701953 | 384 | |
61adc1a4 NC |
385 | /* pr_pid */ |
386 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
38701953 | 387 | |
61adc1a4 NC |
388 | /* pr_reg */ |
389 | offset = 72; | |
eea6121a | 390 | size = 68; |
38701953 | 391 | |
61adc1a4 NC |
392 | break; |
393 | } | |
38701953 AM |
394 | } |
395 | ||
396 | /* Make a ".reg/999" section. */ | |
397 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 398 | size, note->descpos + offset); |
38701953 AM |
399 | } |
400 | ||
b34976b6 | 401 | static bfd_boolean |
55fd94b0 | 402 | elf_i386_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
38701953 | 403 | { |
61adc1a4 | 404 | if (note->namesz == 8 && strcmp (note->namedata, "FreeBSD") == 0) |
38701953 | 405 | { |
61adc1a4 NC |
406 | int pr_version = bfd_get_32 (abfd, note->descdata); |
407 | ||
408 | if (pr_version != 1) | |
b34976b6 | 409 | return FALSE; |
38701953 | 410 | |
61adc1a4 NC |
411 | elf_tdata (abfd)->core_program |
412 | = _bfd_elfcore_strndup (abfd, note->descdata + 8, 17); | |
413 | elf_tdata (abfd)->core_command | |
414 | = _bfd_elfcore_strndup (abfd, note->descdata + 25, 81); | |
415 | } | |
416 | else | |
417 | { | |
418 | switch (note->descsz) | |
419 | { | |
420 | default: | |
421 | return FALSE; | |
422 | ||
423 | case 124: /* Linux/i386 elf_prpsinfo. */ | |
424 | elf_tdata (abfd)->core_program | |
425 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
426 | elf_tdata (abfd)->core_command | |
427 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
428 | } | |
38701953 AM |
429 | } |
430 | ||
431 | /* Note that for some reason, a spurious space is tacked | |
432 | onto the end of the args in some (at least one anyway) | |
433 | implementations, so strip it off if it exists. */ | |
38701953 AM |
434 | { |
435 | char *command = elf_tdata (abfd)->core_command; | |
436 | int n = strlen (command); | |
437 | ||
438 | if (0 < n && command[n - 1] == ' ') | |
439 | command[n - 1] = '\0'; | |
440 | } | |
441 | ||
b34976b6 | 442 | return TRUE; |
38701953 AM |
443 | } |
444 | \f | |
445 | /* Functions for the i386 ELF linker. | |
446 | ||
447 | In order to gain some understanding of code in this file without | |
448 | knowing all the intricate details of the linker, note the | |
449 | following: | |
450 | ||
451 | Functions named elf_i386_* are called by external routines, other | |
452 | functions are only called locally. elf_i386_* functions appear | |
453 | in this file more or less in the order in which they are called | |
454 | from external routines. eg. elf_i386_check_relocs is called | |
455 | early in the link process, elf_i386_finish_dynamic_sections is | |
456 | one of the last functions. */ | |
457 | ||
252b5132 RH |
458 | |
459 | /* The name of the dynamic interpreter. This is put in the .interp | |
460 | section. */ | |
461 | ||
462 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
463 | ||
a23b6845 AM |
464 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
465 | copying dynamic variables from a shared lib into an app's dynbss | |
466 | section, and instead use a dynamic relocation to point into the | |
467 | shared lib. */ | |
468 | #define ELIMINATE_COPY_RELOCS 1 | |
469 | ||
252b5132 RH |
470 | /* The size in bytes of an entry in the procedure linkage table. */ |
471 | ||
472 | #define PLT_ENTRY_SIZE 16 | |
473 | ||
474 | /* The first entry in an absolute procedure linkage table looks like | |
eac338cf PB |
475 | this. See the SVR4 ABI i386 supplement to see how this works. |
476 | Will be padded to PLT_ENTRY_SIZE with htab->plt0_pad_byte. */ | |
252b5132 | 477 | |
eac338cf | 478 | static const bfd_byte elf_i386_plt0_entry[12] = |
252b5132 RH |
479 | { |
480 | 0xff, 0x35, /* pushl contents of address */ | |
481 | 0, 0, 0, 0, /* replaced with address of .got + 4. */ | |
482 | 0xff, 0x25, /* jmp indirect */ | |
eac338cf | 483 | 0, 0, 0, 0 /* replaced with address of .got + 8. */ |
252b5132 RH |
484 | }; |
485 | ||
486 | /* Subsequent entries in an absolute procedure linkage table look like | |
487 | this. */ | |
488 | ||
489 | static const bfd_byte elf_i386_plt_entry[PLT_ENTRY_SIZE] = | |
490 | { | |
491 | 0xff, 0x25, /* jmp indirect */ | |
492 | 0, 0, 0, 0, /* replaced with address of this symbol in .got. */ | |
493 | 0x68, /* pushl immediate */ | |
494 | 0, 0, 0, 0, /* replaced with offset into relocation table. */ | |
495 | 0xe9, /* jmp relative */ | |
496 | 0, 0, 0, 0 /* replaced with offset to start of .plt. */ | |
497 | }; | |
498 | ||
eac338cf PB |
499 | /* The first entry in a PIC procedure linkage table look like this. |
500 | Will be padded to PLT_ENTRY_SIZE with htab->plt0_pad_byte. */ | |
252b5132 | 501 | |
eac338cf | 502 | static const bfd_byte elf_i386_pic_plt0_entry[12] = |
252b5132 RH |
503 | { |
504 | 0xff, 0xb3, 4, 0, 0, 0, /* pushl 4(%ebx) */ | |
eac338cf | 505 | 0xff, 0xa3, 8, 0, 0, 0 /* jmp *8(%ebx) */ |
252b5132 RH |
506 | }; |
507 | ||
508 | /* Subsequent entries in a PIC procedure linkage table look like this. */ | |
509 | ||
510 | static const bfd_byte elf_i386_pic_plt_entry[PLT_ENTRY_SIZE] = | |
511 | { | |
512 | 0xff, 0xa3, /* jmp *offset(%ebx) */ | |
513 | 0, 0, 0, 0, /* replaced with offset of this symbol in .got. */ | |
514 | 0x68, /* pushl immediate */ | |
515 | 0, 0, 0, 0, /* replaced with offset into relocation table. */ | |
516 | 0xe9, /* jmp relative */ | |
517 | 0, 0, 0, 0 /* replaced with offset to start of .plt. */ | |
518 | }; | |
519 | ||
eac338cf PB |
520 | /* On VxWorks, the .rel.plt.unloaded section has absolute relocations |
521 | for the PLTResolve stub and then for each PLT entry. */ | |
522 | #define PLTRESOLVE_RELOCS_SHLIB 0 | |
523 | #define PLTRESOLVE_RELOCS 2 | |
524 | #define PLT_NON_JUMP_SLOT_RELOCS 2 | |
525 | ||
252b5132 | 526 | /* The i386 linker needs to keep track of the number of relocs that it |
ffb2e45b AM |
527 | decides to copy as dynamic relocs in check_relocs for each symbol. |
528 | This is so that it can later discard them if they are found to be | |
529 | unnecessary. We store the information in a field extending the | |
530 | regular ELF linker hash table. */ | |
252b5132 | 531 | |
ffb2e45b | 532 | struct elf_i386_dyn_relocs |
252b5132 | 533 | { |
ffb2e45b | 534 | struct elf_i386_dyn_relocs *next; |
0c715baa AM |
535 | |
536 | /* The input section of the reloc. */ | |
537 | asection *sec; | |
538 | ||
539 | /* Total number of relocs copied for the input section. */ | |
252b5132 | 540 | bfd_size_type count; |
0c715baa AM |
541 | |
542 | /* Number of pc-relative relocs copied for the input section. */ | |
543 | bfd_size_type pc_count; | |
252b5132 RH |
544 | }; |
545 | ||
546 | /* i386 ELF linker hash entry. */ | |
547 | ||
548 | struct elf_i386_link_hash_entry | |
549 | { | |
ebe50bae | 550 | struct elf_link_hash_entry elf; |
252b5132 | 551 | |
0c715baa | 552 | /* Track dynamic relocs copied for this symbol. */ |
ffb2e45b | 553 | struct elf_i386_dyn_relocs *dyn_relocs; |
13ae64f3 | 554 | |
37e55690 JJ |
555 | #define GOT_UNKNOWN 0 |
556 | #define GOT_NORMAL 1 | |
557 | #define GOT_TLS_GD 2 | |
558 | #define GOT_TLS_IE 4 | |
559 | #define GOT_TLS_IE_POS 5 | |
560 | #define GOT_TLS_IE_NEG 6 | |
561 | #define GOT_TLS_IE_BOTH 7 | |
562 | unsigned char tls_type; | |
13ae64f3 JJ |
563 | }; |
564 | ||
565 | #define elf_i386_hash_entry(ent) ((struct elf_i386_link_hash_entry *)(ent)) | |
566 | ||
567 | struct elf_i386_obj_tdata | |
568 | { | |
569 | struct elf_obj_tdata root; | |
570 | ||
571 | /* tls_type for each local got entry. */ | |
572 | char *local_got_tls_type; | |
252b5132 RH |
573 | }; |
574 | ||
13ae64f3 JJ |
575 | #define elf_i386_tdata(abfd) \ |
576 | ((struct elf_i386_obj_tdata *) (abfd)->tdata.any) | |
577 | ||
578 | #define elf_i386_local_got_tls_type(abfd) \ | |
579 | (elf_i386_tdata (abfd)->local_got_tls_type) | |
580 | ||
b34976b6 | 581 | static bfd_boolean |
55fd94b0 | 582 | elf_i386_mkobject (bfd *abfd) |
13ae64f3 JJ |
583 | { |
584 | bfd_size_type amt = sizeof (struct elf_i386_obj_tdata); | |
585 | abfd->tdata.any = bfd_zalloc (abfd, amt); | |
586 | if (abfd->tdata.any == NULL) | |
b34976b6 AM |
587 | return FALSE; |
588 | return TRUE; | |
13ae64f3 | 589 | } |
cedb70c5 | 590 | |
252b5132 RH |
591 | /* i386 ELF linker hash table. */ |
592 | ||
593 | struct elf_i386_link_hash_table | |
594 | { | |
ebe50bae | 595 | struct elf_link_hash_table elf; |
252b5132 | 596 | |
6725bdbf AM |
597 | /* Short-cuts to get to dynamic linker sections. */ |
598 | asection *sgot; | |
599 | asection *sgotplt; | |
600 | asection *srelgot; | |
601 | asection *splt; | |
602 | asection *srelplt; | |
603 | asection *sdynbss; | |
604 | asection *srelbss; | |
9635fe29 | 605 | |
eac338cf PB |
606 | /* The (unloaded but important) .rel.plt.unloaded section on VxWorks. */ |
607 | asection *srelplt2; | |
608 | ||
609 | /* Short-cuts to frequently used symbols for VxWorks targets. */ | |
610 | struct elf_link_hash_entry *hgot, *hplt; | |
611 | ||
612 | /* True if the target system is VxWorks. */ | |
613 | int is_vxworks; | |
ec338859 | 614 | |
eac338cf PB |
615 | /* Value used to fill the last word of the first plt entry. */ |
616 | bfd_byte plt0_pad_byte; | |
9635fe29 | 617 | |
13ae64f3 JJ |
618 | union { |
619 | bfd_signed_vma refcount; | |
620 | bfd_vma offset; | |
621 | } tls_ldm_got; | |
622 | ||
ec338859 AM |
623 | /* Small local sym to section mapping cache. */ |
624 | struct sym_sec_cache sym_sec; | |
6725bdbf | 625 | }; |
252b5132 RH |
626 | |
627 | /* Get the i386 ELF linker hash table from a link_info structure. */ | |
628 | ||
629 | #define elf_i386_hash_table(p) \ | |
630 | ((struct elf_i386_link_hash_table *) ((p)->hash)) | |
631 | ||
632 | /* Create an entry in an i386 ELF linker hash table. */ | |
633 | ||
634 | static struct bfd_hash_entry * | |
55fd94b0 AM |
635 | link_hash_newfunc (struct bfd_hash_entry *entry, |
636 | struct bfd_hash_table *table, | |
637 | const char *string) | |
252b5132 | 638 | { |
252b5132 RH |
639 | /* Allocate the structure if it has not already been allocated by a |
640 | subclass. */ | |
ebe50bae AM |
641 | if (entry == NULL) |
642 | { | |
643 | entry = bfd_hash_allocate (table, | |
644 | sizeof (struct elf_i386_link_hash_entry)); | |
645 | if (entry == NULL) | |
646 | return entry; | |
647 | } | |
252b5132 RH |
648 | |
649 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
650 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
651 | if (entry != NULL) | |
252b5132 | 652 | { |
ebe50bae AM |
653 | struct elf_i386_link_hash_entry *eh; |
654 | ||
655 | eh = (struct elf_i386_link_hash_entry *) entry; | |
656 | eh->dyn_relocs = NULL; | |
13ae64f3 | 657 | eh->tls_type = GOT_UNKNOWN; |
252b5132 RH |
658 | } |
659 | ||
ebe50bae | 660 | return entry; |
252b5132 RH |
661 | } |
662 | ||
663 | /* Create an i386 ELF linker hash table. */ | |
664 | ||
665 | static struct bfd_link_hash_table * | |
55fd94b0 | 666 | elf_i386_link_hash_table_create (bfd *abfd) |
252b5132 RH |
667 | { |
668 | struct elf_i386_link_hash_table *ret; | |
dc810e39 | 669 | bfd_size_type amt = sizeof (struct elf_i386_link_hash_table); |
252b5132 | 670 | |
55fd94b0 | 671 | ret = bfd_malloc (amt); |
ebe50bae | 672 | if (ret == NULL) |
252b5132 RH |
673 | return NULL; |
674 | ||
ebe50bae | 675 | if (! _bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc)) |
252b5132 | 676 | { |
e2d34d7d | 677 | free (ret); |
252b5132 RH |
678 | return NULL; |
679 | } | |
680 | ||
6725bdbf AM |
681 | ret->sgot = NULL; |
682 | ret->sgotplt = NULL; | |
683 | ret->srelgot = NULL; | |
684 | ret->splt = NULL; | |
685 | ret->srelplt = NULL; | |
686 | ret->sdynbss = NULL; | |
687 | ret->srelbss = NULL; | |
7a624474 | 688 | ret->tls_ldm_got.refcount = 0; |
ec338859 | 689 | ret->sym_sec.abfd = NULL; |
eac338cf PB |
690 | ret->is_vxworks = 0; |
691 | ret->srelplt2 = NULL; | |
692 | ret->hgot = NULL; | |
693 | ret->hplt = NULL; | |
694 | ret->plt0_pad_byte = 0; | |
6725bdbf | 695 | |
ebe50bae | 696 | return &ret->elf.root; |
252b5132 RH |
697 | } |
698 | ||
6725bdbf AM |
699 | /* Create .got, .gotplt, and .rel.got sections in DYNOBJ, and set up |
700 | shortcuts to them in our hash table. */ | |
701 | ||
b34976b6 | 702 | static bfd_boolean |
55fd94b0 | 703 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
6725bdbf AM |
704 | { |
705 | struct elf_i386_link_hash_table *htab; | |
706 | ||
707 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 708 | return FALSE; |
6725bdbf AM |
709 | |
710 | htab = elf_i386_hash_table (info); | |
711 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
712 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
713 | if (!htab->sgot || !htab->sgotplt) | |
714 | abort (); | |
715 | ||
3496cb2a L |
716 | htab->srelgot = bfd_make_section_with_flags (dynobj, ".rel.got", |
717 | (SEC_ALLOC | SEC_LOAD | |
718 | | SEC_HAS_CONTENTS | |
719 | | SEC_IN_MEMORY | |
720 | | SEC_LINKER_CREATED | |
721 | | SEC_READONLY)); | |
6725bdbf | 722 | if (htab->srelgot == NULL |
6725bdbf | 723 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
b34976b6 AM |
724 | return FALSE; |
725 | return TRUE; | |
6725bdbf AM |
726 | } |
727 | ||
728 | /* Create .plt, .rel.plt, .got, .got.plt, .rel.got, .dynbss, and | |
729 | .rel.bss sections in DYNOBJ, and set up shortcuts to them in our | |
730 | hash table. */ | |
731 | ||
b34976b6 | 732 | static bfd_boolean |
55fd94b0 | 733 | elf_i386_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
6725bdbf AM |
734 | { |
735 | struct elf_i386_link_hash_table *htab; | |
eac338cf PB |
736 | asection * s; |
737 | int flags; | |
738 | const struct elf_backend_data *bed = get_elf_backend_data (dynobj); | |
6725bdbf AM |
739 | |
740 | htab = elf_i386_hash_table (info); | |
741 | if (!htab->sgot && !create_got_section (dynobj, info)) | |
b34976b6 | 742 | return FALSE; |
6725bdbf AM |
743 | |
744 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
b34976b6 | 745 | return FALSE; |
6725bdbf AM |
746 | |
747 | htab->splt = bfd_get_section_by_name (dynobj, ".plt"); | |
748 | htab->srelplt = bfd_get_section_by_name (dynobj, ".rel.plt"); | |
749 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); | |
750 | if (!info->shared) | |
751 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rel.bss"); | |
752 | ||
753 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
754 | || (!info->shared && !htab->srelbss)) | |
755 | abort (); | |
756 | ||
eac338cf PB |
757 | if (htab->is_vxworks && !info->shared) |
758 | { | |
759 | s = bfd_make_section (dynobj, ".rel.plt.unloaded"); | |
760 | flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_READONLY | |
761 | | SEC_LINKER_CREATED); | |
762 | if (s == NULL | |
763 | || ! bfd_set_section_flags (dynobj, s, flags) | |
764 | || ! bfd_set_section_alignment (dynobj, s, bed->s->log_file_align)) | |
765 | return FALSE; | |
766 | htab->srelplt2 = s; | |
767 | } | |
768 | ||
b34976b6 | 769 | return TRUE; |
6725bdbf AM |
770 | } |
771 | ||
ebe50bae AM |
772 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
773 | ||
51b64d56 | 774 | static void |
9c5bfbb7 | 775 | elf_i386_copy_indirect_symbol (const struct elf_backend_data *bed, |
55fd94b0 AM |
776 | struct elf_link_hash_entry *dir, |
777 | struct elf_link_hash_entry *ind) | |
ebe50bae AM |
778 | { |
779 | struct elf_i386_link_hash_entry *edir, *eind; | |
780 | ||
781 | edir = (struct elf_i386_link_hash_entry *) dir; | |
782 | eind = (struct elf_i386_link_hash_entry *) ind; | |
783 | ||
bbd7ec4a | 784 | if (eind->dyn_relocs != NULL) |
ebe50bae | 785 | { |
bbd7ec4a AM |
786 | if (edir->dyn_relocs != NULL) |
787 | { | |
788 | struct elf_i386_dyn_relocs **pp; | |
789 | struct elf_i386_dyn_relocs *p; | |
790 | ||
1e370bd2 | 791 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
792 | abort (); |
793 | ||
794 | /* Add reloc counts against the weak sym to the strong sym | |
795 | list. Merge any entries against the same section. */ | |
796 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
797 | { | |
798 | struct elf_i386_dyn_relocs *q; | |
799 | ||
800 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
801 | if (q->sec == p->sec) | |
802 | { | |
803 | q->pc_count += p->pc_count; | |
804 | q->count += p->count; | |
805 | *pp = p->next; | |
806 | break; | |
807 | } | |
808 | if (q == NULL) | |
809 | pp = &p->next; | |
810 | } | |
811 | *pp = edir->dyn_relocs; | |
812 | } | |
813 | ||
ebe50bae AM |
814 | edir->dyn_relocs = eind->dyn_relocs; |
815 | eind->dyn_relocs = NULL; | |
816 | } | |
ebe50bae | 817 | |
cd67d266 JJ |
818 | if (ind->root.type == bfd_link_hash_indirect |
819 | && dir->got.refcount <= 0) | |
820 | { | |
821 | edir->tls_type = eind->tls_type; | |
822 | eind->tls_type = GOT_UNKNOWN; | |
823 | } | |
81848ca0 AM |
824 | |
825 | if (ELIMINATE_COPY_RELOCS | |
826 | && ind->root.type != bfd_link_hash_indirect | |
f5385ebf AM |
827 | && dir->dynamic_adjusted) |
828 | { | |
829 | /* If called to transfer flags for a weakdef during processing | |
830 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
831 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
832 | dir->ref_dynamic |= ind->ref_dynamic; | |
833 | dir->ref_regular |= ind->ref_regular; | |
834 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
835 | dir->needs_plt |= ind->needs_plt; | |
836 | dir->pointer_equality_needed |= ind->pointer_equality_needed; | |
837 | } | |
81848ca0 AM |
838 | else |
839 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); | |
ebe50bae AM |
840 | } |
841 | ||
13ae64f3 | 842 | static int |
55fd94b0 | 843 | elf_i386_tls_transition (struct bfd_link_info *info, int r_type, int is_local) |
13ae64f3 JJ |
844 | { |
845 | if (info->shared) | |
846 | return r_type; | |
847 | ||
848 | switch (r_type) | |
849 | { | |
850 | case R_386_TLS_GD: | |
851 | case R_386_TLS_IE_32: | |
852 | if (is_local) | |
853 | return R_386_TLS_LE_32; | |
854 | return R_386_TLS_IE_32; | |
37e55690 JJ |
855 | case R_386_TLS_IE: |
856 | case R_386_TLS_GOTIE: | |
857 | if (is_local) | |
858 | return R_386_TLS_LE_32; | |
859 | return r_type; | |
13ae64f3 JJ |
860 | case R_386_TLS_LDM: |
861 | return R_386_TLS_LE_32; | |
862 | } | |
863 | ||
864 | return r_type; | |
865 | } | |
866 | ||
252b5132 | 867 | /* Look through the relocs for a section during the first phase, and |
0ac8d2ca AM |
868 | calculate needed space in the global offset table, procedure linkage |
869 | table, and dynamic reloc sections. */ | |
252b5132 | 870 | |
b34976b6 | 871 | static bfd_boolean |
55fd94b0 AM |
872 | elf_i386_check_relocs (bfd *abfd, |
873 | struct bfd_link_info *info, | |
874 | asection *sec, | |
875 | const Elf_Internal_Rela *relocs) | |
252b5132 | 876 | { |
6725bdbf | 877 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
878 | Elf_Internal_Shdr *symtab_hdr; |
879 | struct elf_link_hash_entry **sym_hashes; | |
252b5132 RH |
880 | const Elf_Internal_Rela *rel; |
881 | const Elf_Internal_Rela *rel_end; | |
252b5132 RH |
882 | asection *sreloc; |
883 | ||
1049f94e | 884 | if (info->relocatable) |
b34976b6 | 885 | return TRUE; |
252b5132 | 886 | |
6725bdbf | 887 | htab = elf_i386_hash_table (info); |
252b5132 RH |
888 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
889 | sym_hashes = elf_sym_hashes (abfd); | |
252b5132 | 890 | |
252b5132 RH |
891 | sreloc = NULL; |
892 | ||
893 | rel_end = relocs + sec->reloc_count; | |
894 | for (rel = relocs; rel < rel_end; rel++) | |
895 | { | |
13ae64f3 | 896 | unsigned int r_type; |
252b5132 RH |
897 | unsigned long r_symndx; |
898 | struct elf_link_hash_entry *h; | |
899 | ||
900 | r_symndx = ELF32_R_SYM (rel->r_info); | |
13ae64f3 | 901 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 902 | |
d9bc7a44 | 903 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
f5f31454 | 904 | { |
d003868e AM |
905 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), |
906 | abfd, | |
8f615d07 | 907 | r_symndx); |
b34976b6 | 908 | return FALSE; |
f5f31454 L |
909 | } |
910 | ||
252b5132 RH |
911 | if (r_symndx < symtab_hdr->sh_info) |
912 | h = NULL; | |
913 | else | |
71cb9464 L |
914 | { |
915 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
916 | while (h->root.type == bfd_link_hash_indirect | |
917 | || h->root.type == bfd_link_hash_warning) | |
918 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
919 | } | |
252b5132 | 920 | |
13ae64f3 JJ |
921 | r_type = elf_i386_tls_transition (info, r_type, h == NULL); |
922 | ||
923 | switch (r_type) | |
252b5132 | 924 | { |
37e55690 JJ |
925 | case R_386_TLS_LDM: |
926 | htab->tls_ldm_got.refcount += 1; | |
927 | goto create_got; | |
928 | ||
929 | case R_386_PLT32: | |
930 | /* This symbol requires a procedure linkage table entry. We | |
931 | actually build the entry in adjust_dynamic_symbol, | |
932 | because this might be a case of linking PIC code which is | |
933 | never referenced by a dynamic object, in which case we | |
934 | don't need to generate a procedure linkage table entry | |
935 | after all. */ | |
936 | ||
937 | /* If this is a local symbol, we resolve it directly without | |
938 | creating a procedure linkage table entry. */ | |
939 | if (h == NULL) | |
940 | continue; | |
941 | ||
f5385ebf | 942 | h->needs_plt = 1; |
37e55690 JJ |
943 | h->plt.refcount += 1; |
944 | break; | |
945 | ||
13ae64f3 | 946 | case R_386_TLS_IE_32: |
37e55690 JJ |
947 | case R_386_TLS_IE: |
948 | case R_386_TLS_GOTIE: | |
13ae64f3 JJ |
949 | if (info->shared) |
950 | info->flags |= DF_STATIC_TLS; | |
37e55690 JJ |
951 | /* Fall through */ |
952 | ||
252b5132 | 953 | case R_386_GOT32: |
13ae64f3 | 954 | case R_386_TLS_GD: |
252b5132 | 955 | /* This symbol requires a global offset table entry. */ |
13ae64f3 JJ |
956 | { |
957 | int tls_type, old_tls_type; | |
958 | ||
959 | switch (r_type) | |
960 | { | |
961 | default: | |
962 | case R_386_GOT32: tls_type = GOT_NORMAL; break; | |
963 | case R_386_TLS_GD: tls_type = GOT_TLS_GD; break; | |
37e55690 JJ |
964 | case R_386_TLS_IE_32: |
965 | if (ELF32_R_TYPE (rel->r_info) == r_type) | |
966 | tls_type = GOT_TLS_IE_NEG; | |
967 | else | |
968 | /* If this is a GD->IE transition, we may use either of | |
969 | R_386_TLS_TPOFF and R_386_TLS_TPOFF32. */ | |
970 | tls_type = GOT_TLS_IE; | |
971 | break; | |
972 | case R_386_TLS_IE: | |
973 | case R_386_TLS_GOTIE: | |
974 | tls_type = GOT_TLS_IE_POS; break; | |
13ae64f3 JJ |
975 | } |
976 | ||
977 | if (h != NULL) | |
978 | { | |
979 | h->got.refcount += 1; | |
980 | old_tls_type = elf_i386_hash_entry(h)->tls_type; | |
981 | } | |
982 | else | |
983 | { | |
984 | bfd_signed_vma *local_got_refcounts; | |
985 | ||
986 | /* This is a global offset table entry for a local symbol. */ | |
987 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
988 | if (local_got_refcounts == NULL) | |
989 | { | |
990 | bfd_size_type size; | |
991 | ||
992 | size = symtab_hdr->sh_info; | |
993 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
55fd94b0 | 994 | local_got_refcounts = bfd_zalloc (abfd, size); |
13ae64f3 | 995 | if (local_got_refcounts == NULL) |
b34976b6 | 996 | return FALSE; |
13ae64f3 JJ |
997 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
998 | elf_i386_local_got_tls_type (abfd) | |
999 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
1000 | } | |
1001 | local_got_refcounts[r_symndx] += 1; | |
1002 | old_tls_type = elf_i386_local_got_tls_type (abfd) [r_symndx]; | |
1003 | } | |
1004 | ||
37e55690 JJ |
1005 | if ((old_tls_type & GOT_TLS_IE) && (tls_type & GOT_TLS_IE)) |
1006 | tls_type |= old_tls_type; | |
13ae64f3 JJ |
1007 | /* If a TLS symbol is accessed using IE at least once, |
1008 | there is no point to use dynamic model for it. */ | |
37e55690 JJ |
1009 | else if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN |
1010 | && (old_tls_type != GOT_TLS_GD | |
1011 | || (tls_type & GOT_TLS_IE) == 0)) | |
13ae64f3 | 1012 | { |
37e55690 JJ |
1013 | if ((old_tls_type & GOT_TLS_IE) && tls_type == GOT_TLS_GD) |
1014 | tls_type = old_tls_type; | |
13ae64f3 JJ |
1015 | else |
1016 | { | |
1017 | (*_bfd_error_handler) | |
d003868e | 1018 | (_("%B: `%s' accessed both as normal and " |
55fd94b0 | 1019 | "thread local symbol"), |
d003868e | 1020 | abfd, |
37e55690 | 1021 | h ? h->root.root.string : "<local>"); |
b34976b6 | 1022 | return FALSE; |
13ae64f3 JJ |
1023 | } |
1024 | } | |
1025 | ||
1026 | if (old_tls_type != tls_type) | |
1027 | { | |
1028 | if (h != NULL) | |
1029 | elf_i386_hash_entry (h)->tls_type = tls_type; | |
1030 | else | |
1031 | elf_i386_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1032 | } | |
1033 | } | |
0ac8d2ca AM |
1034 | /* Fall through */ |
1035 | ||
1036 | case R_386_GOTOFF: | |
1037 | case R_386_GOTPC: | |
13ae64f3 | 1038 | create_got: |
0ac8d2ca AM |
1039 | if (htab->sgot == NULL) |
1040 | { | |
1041 | if (htab->elf.dynobj == NULL) | |
1042 | htab->elf.dynobj = abfd; | |
1043 | if (!create_got_section (htab->elf.dynobj, info)) | |
b34976b6 | 1044 | return FALSE; |
0ac8d2ca | 1045 | } |
37e55690 JJ |
1046 | if (r_type != R_386_TLS_IE) |
1047 | break; | |
1048 | /* Fall through */ | |
252b5132 | 1049 | |
37e55690 JJ |
1050 | case R_386_TLS_LE_32: |
1051 | case R_386_TLS_LE: | |
1052 | if (!info->shared) | |
1053 | break; | |
bffbf940 | 1054 | info->flags |= DF_STATIC_TLS; |
b34976b6 | 1055 | /* Fall through */ |
252b5132 RH |
1056 | |
1057 | case R_386_32: | |
1058 | case R_386_PC32: | |
12d0ee4a | 1059 | if (h != NULL && !info->shared) |
6725bdbf | 1060 | { |
12d0ee4a | 1061 | /* If this reloc is in a read-only section, we might |
ebe50bae AM |
1062 | need a copy reloc. We can't check reliably at this |
1063 | stage whether the section is read-only, as input | |
1064 | sections have not yet been mapped to output sections. | |
1065 | Tentatively set the flag for now, and correct in | |
1066 | adjust_dynamic_symbol. */ | |
f5385ebf | 1067 | h->non_got_ref = 1; |
12d0ee4a AM |
1068 | |
1069 | /* We may need a .plt entry if the function this reloc | |
1070 | refers to is in a shared lib. */ | |
51b64d56 | 1071 | h->plt.refcount += 1; |
c6585bbb | 1072 | if (r_type != R_386_PC32) |
f5385ebf | 1073 | h->pointer_equality_needed = 1; |
6725bdbf | 1074 | } |
7843f00e | 1075 | |
252b5132 | 1076 | /* If we are creating a shared library, and this is a reloc |
f69da49f AM |
1077 | against a global symbol, or a non PC relative reloc |
1078 | against a local symbol, then we need to copy the reloc | |
1079 | into the shared library. However, if we are linking with | |
1080 | -Bsymbolic, we do not need to copy a reloc against a | |
1081 | global symbol which is defined in an object we are | |
1082 | including in the link (i.e., DEF_REGULAR is set). At | |
1083 | this point we have not seen all the input files, so it is | |
1084 | possible that DEF_REGULAR is not set now but will be set | |
1f655a09 L |
1085 | later (it is never cleared). In case of a weak definition, |
1086 | DEF_REGULAR may be cleared later by a strong definition in | |
ebe50bae | 1087 | a shared library. We account for that possibility below by |
1f655a09 L |
1088 | storing information in the relocs_copied field of the hash |
1089 | table entry. A similar situation occurs when creating | |
1090 | shared libraries and symbol visibility changes render the | |
12d0ee4a | 1091 | symbol local. |
56882138 | 1092 | |
12d0ee4a AM |
1093 | If on the other hand, we are creating an executable, we |
1094 | may need to keep relocations for symbols satisfied by a | |
1095 | dynamic library if we manage to avoid copy relocs for the | |
1096 | symbol. */ | |
1097 | if ((info->shared | |
1098 | && (sec->flags & SEC_ALLOC) != 0 | |
13ae64f3 | 1099 | && (r_type != R_386_PC32 |
12d0ee4a AM |
1100 | || (h != NULL |
1101 | && (! info->symbolic | |
1102 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 1103 | || !h->def_regular)))) |
a23b6845 AM |
1104 | || (ELIMINATE_COPY_RELOCS |
1105 | && !info->shared | |
12d0ee4a AM |
1106 | && (sec->flags & SEC_ALLOC) != 0 |
1107 | && h != NULL | |
12d0ee4a | 1108 | && (h->root.type == bfd_link_hash_defweak |
f5385ebf | 1109 | || !h->def_regular))) |
252b5132 | 1110 | { |
ec338859 AM |
1111 | struct elf_i386_dyn_relocs *p; |
1112 | struct elf_i386_dyn_relocs **head; | |
1113 | ||
12d0ee4a AM |
1114 | /* We must copy these reloc types into the output file. |
1115 | Create a reloc section in dynobj and make room for | |
1116 | this reloc. */ | |
252b5132 RH |
1117 | if (sreloc == NULL) |
1118 | { | |
1119 | const char *name; | |
0ac8d2ca | 1120 | bfd *dynobj; |
e92d460e AM |
1121 | unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; |
1122 | unsigned int shnam = elf_section_data (sec)->rel_hdr.sh_name; | |
252b5132 | 1123 | |
e92d460e | 1124 | name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); |
252b5132 | 1125 | if (name == NULL) |
b34976b6 | 1126 | return FALSE; |
252b5132 | 1127 | |
c8492176 L |
1128 | if (strncmp (name, ".rel", 4) != 0 |
1129 | || strcmp (bfd_get_section_name (abfd, sec), | |
1130 | name + 4) != 0) | |
1131 | { | |
0c715baa | 1132 | (*_bfd_error_handler) |
d003868e AM |
1133 | (_("%B: bad relocation section name `%s\'"), |
1134 | abfd, name); | |
f5f31454 | 1135 | } |
252b5132 | 1136 | |
0ac8d2ca AM |
1137 | if (htab->elf.dynobj == NULL) |
1138 | htab->elf.dynobj = abfd; | |
1139 | ||
1140 | dynobj = htab->elf.dynobj; | |
252b5132 RH |
1141 | sreloc = bfd_get_section_by_name (dynobj, name); |
1142 | if (sreloc == NULL) | |
1143 | { | |
1144 | flagword flags; | |
1145 | ||
252b5132 RH |
1146 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1147 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1148 | if ((sec->flags & SEC_ALLOC) != 0) | |
1149 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
1150 | sreloc = bfd_make_section_with_flags (dynobj, |
1151 | name, | |
1152 | flags); | |
252b5132 | 1153 | if (sreloc == NULL |
252b5132 | 1154 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 1155 | return FALSE; |
252b5132 | 1156 | } |
0c715baa | 1157 | elf_section_data (sec)->sreloc = sreloc; |
252b5132 RH |
1158 | } |
1159 | ||
0c715baa AM |
1160 | /* If this is a global symbol, we count the number of |
1161 | relocations we need for this symbol. */ | |
1162 | if (h != NULL) | |
252b5132 | 1163 | { |
ec338859 | 1164 | head = &((struct elf_i386_link_hash_entry *) h)->dyn_relocs; |
0c715baa AM |
1165 | } |
1166 | else | |
1167 | { | |
ec338859 AM |
1168 | /* Track dynamic relocs needed for local syms too. |
1169 | We really need local syms available to do this | |
1170 | easily. Oh well. */ | |
1171 | ||
1172 | asection *s; | |
1173 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1174 | sec, r_symndx); | |
1175 | if (s == NULL) | |
b34976b6 | 1176 | return FALSE; |
ec338859 AM |
1177 | |
1178 | head = ((struct elf_i386_dyn_relocs **) | |
1179 | &elf_section_data (s)->local_dynrel); | |
1180 | } | |
1181 | ||
1182 | p = *head; | |
1183 | if (p == NULL || p->sec != sec) | |
1184 | { | |
1185 | bfd_size_type amt = sizeof *p; | |
55fd94b0 | 1186 | p = bfd_alloc (htab->elf.dynobj, amt); |
ec338859 | 1187 | if (p == NULL) |
b34976b6 | 1188 | return FALSE; |
ec338859 AM |
1189 | p->next = *head; |
1190 | *head = p; | |
1191 | p->sec = sec; | |
1192 | p->count = 0; | |
1193 | p->pc_count = 0; | |
252b5132 | 1194 | } |
ec338859 AM |
1195 | |
1196 | p->count += 1; | |
13ae64f3 | 1197 | if (r_type == R_386_PC32) |
ec338859 | 1198 | p->pc_count += 1; |
252b5132 | 1199 | } |
252b5132 RH |
1200 | break; |
1201 | ||
1202 | /* This relocation describes the C++ object vtable hierarchy. | |
1203 | Reconstruct it for later use during GC. */ | |
1204 | case R_386_GNU_VTINHERIT: | |
c152c796 | 1205 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 1206 | return FALSE; |
252b5132 RH |
1207 | break; |
1208 | ||
1209 | /* This relocation describes which C++ vtable entries are actually | |
1210 | used. Record for later use during GC. */ | |
1211 | case R_386_GNU_VTENTRY: | |
c152c796 | 1212 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) |
b34976b6 | 1213 | return FALSE; |
252b5132 RH |
1214 | break; |
1215 | ||
1216 | default: | |
1217 | break; | |
1218 | } | |
1219 | } | |
1220 | ||
b34976b6 | 1221 | return TRUE; |
252b5132 RH |
1222 | } |
1223 | ||
1224 | /* Return the section that should be marked against GC for a given | |
1225 | relocation. */ | |
1226 | ||
1227 | static asection * | |
55fd94b0 AM |
1228 | elf_i386_gc_mark_hook (asection *sec, |
1229 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1230 | Elf_Internal_Rela *rel, | |
1231 | struct elf_link_hash_entry *h, | |
1232 | Elf_Internal_Sym *sym) | |
252b5132 RH |
1233 | { |
1234 | if (h != NULL) | |
1235 | { | |
1236 | switch (ELF32_R_TYPE (rel->r_info)) | |
1237 | { | |
1238 | case R_386_GNU_VTINHERIT: | |
1239 | case R_386_GNU_VTENTRY: | |
1240 | break; | |
1241 | ||
1242 | default: | |
1243 | switch (h->root.type) | |
1244 | { | |
1245 | case bfd_link_hash_defined: | |
1246 | case bfd_link_hash_defweak: | |
1247 | return h->root.u.def.section; | |
1248 | ||
1249 | case bfd_link_hash_common: | |
1250 | return h->root.u.c.p->section; | |
1251 | ||
1252 | default: | |
1253 | break; | |
1254 | } | |
1255 | } | |
1256 | } | |
1257 | else | |
1e2f5b6e | 1258 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
252b5132 RH |
1259 | |
1260 | return NULL; | |
1261 | } | |
1262 | ||
1263 | /* Update the got entry reference counts for the section being removed. */ | |
1264 | ||
b34976b6 | 1265 | static bfd_boolean |
55fd94b0 AM |
1266 | elf_i386_gc_sweep_hook (bfd *abfd, |
1267 | struct bfd_link_info *info, | |
1268 | asection *sec, | |
1269 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1270 | { |
dd5724d5 AM |
1271 | Elf_Internal_Shdr *symtab_hdr; |
1272 | struct elf_link_hash_entry **sym_hashes; | |
1273 | bfd_signed_vma *local_got_refcounts; | |
1274 | const Elf_Internal_Rela *rel, *relend; | |
dd5724d5 | 1275 | |
ec338859 | 1276 | elf_section_data (sec)->local_dynrel = NULL; |
dd5724d5 | 1277 | |
6725bdbf AM |
1278 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1279 | sym_hashes = elf_sym_hashes (abfd); | |
1280 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
dd5724d5 AM |
1281 | |
1282 | relend = relocs + sec->reloc_count; | |
1283 | for (rel = relocs; rel < relend; rel++) | |
26e41594 AM |
1284 | { |
1285 | unsigned long r_symndx; | |
1286 | unsigned int r_type; | |
1287 | struct elf_link_hash_entry *h = NULL; | |
37e55690 | 1288 | |
26e41594 AM |
1289 | r_symndx = ELF32_R_SYM (rel->r_info); |
1290 | if (r_symndx >= symtab_hdr->sh_info) | |
1291 | { | |
1292 | struct elf_i386_link_hash_entry *eh; | |
1293 | struct elf_i386_dyn_relocs **pp; | |
1294 | struct elf_i386_dyn_relocs *p; | |
dd5724d5 | 1295 | |
26e41594 | 1296 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
3eb128b2 AM |
1297 | while (h->root.type == bfd_link_hash_indirect |
1298 | || h->root.type == bfd_link_hash_warning) | |
1299 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
26e41594 | 1300 | eh = (struct elf_i386_link_hash_entry *) h; |
0c715baa | 1301 | |
26e41594 AM |
1302 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) |
1303 | if (p->sec == sec) | |
1304 | { | |
1305 | /* Everything must go for SEC. */ | |
1306 | *pp = p->next; | |
1307 | break; | |
1308 | } | |
1309 | } | |
0c715baa | 1310 | |
26e41594 AM |
1311 | r_type = ELF32_R_TYPE (rel->r_info); |
1312 | r_type = elf_i386_tls_transition (info, r_type, h != NULL); | |
1313 | switch (r_type) | |
1314 | { | |
1315 | case R_386_TLS_LDM: | |
1316 | if (elf_i386_hash_table (info)->tls_ldm_got.refcount > 0) | |
1317 | elf_i386_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1318 | break; | |
0c715baa | 1319 | |
26e41594 AM |
1320 | case R_386_TLS_GD: |
1321 | case R_386_TLS_IE_32: | |
1322 | case R_386_TLS_IE: | |
1323 | case R_386_TLS_GOTIE: | |
1324 | case R_386_GOT32: | |
1325 | if (h != NULL) | |
1326 | { | |
1327 | if (h->got.refcount > 0) | |
1328 | h->got.refcount -= 1; | |
1329 | } | |
1330 | else if (local_got_refcounts != NULL) | |
1331 | { | |
1332 | if (local_got_refcounts[r_symndx] > 0) | |
1333 | local_got_refcounts[r_symndx] -= 1; | |
1334 | } | |
1335 | break; | |
0c715baa | 1336 | |
26e41594 AM |
1337 | case R_386_32: |
1338 | case R_386_PC32: | |
1339 | if (info->shared) | |
1340 | break; | |
1341 | /* Fall through */ | |
6725bdbf | 1342 | |
26e41594 AM |
1343 | case R_386_PLT32: |
1344 | if (h != NULL) | |
1345 | { | |
1346 | if (h->plt.refcount > 0) | |
1347 | h->plt.refcount -= 1; | |
1348 | } | |
1349 | break; | |
dd5724d5 | 1350 | |
26e41594 AM |
1351 | default: |
1352 | break; | |
1353 | } | |
1354 | } | |
252b5132 | 1355 | |
b34976b6 | 1356 | return TRUE; |
252b5132 RH |
1357 | } |
1358 | ||
1359 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1360 | regular object. The current definition is in some section of the | |
1361 | dynamic object, but we're not including those sections. We have to | |
1362 | change the definition to something the rest of the link can | |
1363 | understand. */ | |
1364 | ||
b34976b6 | 1365 | static bfd_boolean |
55fd94b0 AM |
1366 | elf_i386_adjust_dynamic_symbol (struct bfd_link_info *info, |
1367 | struct elf_link_hash_entry *h) | |
252b5132 | 1368 | { |
6725bdbf | 1369 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
1370 | asection *s; |
1371 | unsigned int power_of_two; | |
1372 | ||
252b5132 RH |
1373 | /* If this is a function, put it in the procedure linkage table. We |
1374 | will fill in the contents of the procedure linkage table later, | |
1375 | when we know the address of the .got section. */ | |
1376 | if (h->type == STT_FUNC | |
f5385ebf | 1377 | || h->needs_plt) |
252b5132 | 1378 | { |
6725bdbf | 1379 | if (h->plt.refcount <= 0 |
9c7a29a3 AM |
1380 | || SYMBOL_CALLS_LOCAL (info, h) |
1381 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1382 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
1383 | { |
1384 | /* This case can occur if we saw a PLT32 reloc in an input | |
dd5724d5 AM |
1385 | file, but the symbol was never referred to by a dynamic |
1386 | object, or if all references were garbage collected. In | |
1387 | such a case, we don't actually need to build a procedure | |
1388 | linkage table, and we can just do a PC32 reloc instead. */ | |
bbd7ec4a | 1389 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 1390 | h->needs_plt = 0; |
252b5132 RH |
1391 | } |
1392 | ||
b34976b6 | 1393 | return TRUE; |
252b5132 | 1394 | } |
6725bdbf AM |
1395 | else |
1396 | /* It's possible that we incorrectly decided a .plt reloc was | |
1397 | needed for an R_386_PC32 reloc to a non-function sym in | |
1398 | check_relocs. We can't decide accurately between function and | |
1399 | non-function syms in check-relocs; Objects loaded later in | |
1400 | the link may change h->type. So fix it now. */ | |
bbd7ec4a | 1401 | h->plt.offset = (bfd_vma) -1; |
252b5132 RH |
1402 | |
1403 | /* If this is a weak symbol, and there is a real definition, the | |
1404 | processor independent code will have arranged for us to see the | |
1405 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 1406 | if (h->u.weakdef != NULL) |
252b5132 | 1407 | { |
f6e332e6 AM |
1408 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
1409 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1410 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1411 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
a23b6845 | 1412 | if (ELIMINATE_COPY_RELOCS || info->nocopyreloc) |
f6e332e6 | 1413 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 1414 | return TRUE; |
252b5132 RH |
1415 | } |
1416 | ||
1417 | /* This is a reference to a symbol defined by a dynamic object which | |
1418 | is not a function. */ | |
1419 | ||
1420 | /* If we are creating a shared library, we must presume that the | |
1421 | only references to the symbol are via the global offset table. | |
1422 | For such cases we need not do anything here; the relocations will | |
1423 | be handled correctly by relocate_section. */ | |
1424 | if (info->shared) | |
b34976b6 | 1425 | return TRUE; |
252b5132 | 1426 | |
7843f00e ILT |
1427 | /* If there are no references to this symbol that do not use the |
1428 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 1429 | if (!h->non_got_ref) |
b34976b6 | 1430 | return TRUE; |
7843f00e | 1431 | |
8bd621d8 AM |
1432 | /* If -z nocopyreloc was given, we won't generate them either. */ |
1433 | if (info->nocopyreloc) | |
1434 | { | |
f5385ebf | 1435 | h->non_got_ref = 0; |
b34976b6 | 1436 | return TRUE; |
8bd621d8 AM |
1437 | } |
1438 | ||
643796e3 DJ |
1439 | htab = elf_i386_hash_table (info); |
1440 | ||
1441 | /* If there aren't any dynamic relocs in read-only sections, then | |
1442 | we can keep the dynamic relocs and avoid the copy reloc. This | |
1443 | doesn't work on VxWorks, where we can not have dynamic relocations | |
1444 | (other than copy and jump slot relocations) in an executable. */ | |
1445 | if (ELIMINATE_COPY_RELOCS && !htab->is_vxworks) | |
ebe50bae | 1446 | { |
a23b6845 AM |
1447 | struct elf_i386_link_hash_entry * eh; |
1448 | struct elf_i386_dyn_relocs *p; | |
ebe50bae | 1449 | |
a23b6845 AM |
1450 | eh = (struct elf_i386_link_hash_entry *) h; |
1451 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1452 | { | |
1453 | s = p->sec->output_section; | |
1454 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1455 | break; | |
1456 | } | |
1457 | ||
a23b6845 AM |
1458 | if (p == NULL) |
1459 | { | |
f5385ebf | 1460 | h->non_got_ref = 0; |
a23b6845 AM |
1461 | return TRUE; |
1462 | } | |
ebe50bae AM |
1463 | } |
1464 | ||
252b5132 RH |
1465 | /* We must allocate the symbol in our .dynbss section, which will |
1466 | become part of the .bss section of the executable. There will be | |
1467 | an entry for this symbol in the .dynsym section. The dynamic | |
1468 | object will contain position independent code, so all references | |
1469 | from the dynamic object to this symbol will go through the global | |
1470 | offset table. The dynamic linker will use the .dynsym entry to | |
1471 | determine the address it must put in the global offset table, so | |
1472 | both the dynamic object and the regular object will refer to the | |
1473 | same memory location for the variable. */ | |
1474 | ||
252b5132 RH |
1475 | /* We must generate a R_386_COPY reloc to tell the dynamic linker to |
1476 | copy the initial value out of the dynamic object and into the | |
0ac8d2ca | 1477 | runtime process image. */ |
252b5132 RH |
1478 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1479 | { | |
eea6121a | 1480 | htab->srelbss->size += sizeof (Elf32_External_Rel); |
f5385ebf | 1481 | h->needs_copy = 1; |
252b5132 RH |
1482 | } |
1483 | ||
1484 | /* We need to figure out the alignment required for this symbol. I | |
1485 | have no idea how ELF linkers handle this. */ | |
1486 | power_of_two = bfd_log2 (h->size); | |
1487 | if (power_of_two > 3) | |
1488 | power_of_two = 3; | |
1489 | ||
1490 | /* Apply the required alignment. */ | |
0ac8d2ca | 1491 | s = htab->sdynbss; |
eea6121a | 1492 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
0ac8d2ca | 1493 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) |
252b5132 | 1494 | { |
0ac8d2ca | 1495 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) |
b34976b6 | 1496 | return FALSE; |
252b5132 RH |
1497 | } |
1498 | ||
1499 | /* Define the symbol as being at this point in the section. */ | |
1500 | h->root.u.def.section = s; | |
eea6121a | 1501 | h->root.u.def.value = s->size; |
252b5132 RH |
1502 | |
1503 | /* Increment the section size to make room for the symbol. */ | |
eea6121a | 1504 | s->size += h->size; |
252b5132 | 1505 | |
b34976b6 | 1506 | return TRUE; |
252b5132 RH |
1507 | } |
1508 | ||
6725bdbf | 1509 | /* Allocate space in .plt, .got and associated reloc sections for |
0c715baa | 1510 | dynamic relocs. */ |
6725bdbf | 1511 | |
b34976b6 | 1512 | static bfd_boolean |
55fd94b0 | 1513 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
6725bdbf AM |
1514 | { |
1515 | struct bfd_link_info *info; | |
1516 | struct elf_i386_link_hash_table *htab; | |
5a15f56f | 1517 | struct elf_i386_link_hash_entry *eh; |
0c715baa | 1518 | struct elf_i386_dyn_relocs *p; |
6725bdbf | 1519 | |
e92d460e | 1520 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1521 | return TRUE; |
6725bdbf | 1522 | |
e92d460e AM |
1523 | if (h->root.type == bfd_link_hash_warning) |
1524 | /* When warning symbols are created, they **replace** the "real" | |
1525 | entry in the hash table, thus we never get to see the real | |
1526 | symbol in a hash traversal. So look at it now. */ | |
1527 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1528 | ||
6725bdbf AM |
1529 | info = (struct bfd_link_info *) inf; |
1530 | htab = elf_i386_hash_table (info); | |
1531 | ||
ebe50bae | 1532 | if (htab->elf.dynamic_sections_created |
9c7a29a3 | 1533 | && h->plt.refcount > 0) |
6725bdbf | 1534 | { |
5a15f56f AM |
1535 | /* Make sure this symbol is output as a dynamic symbol. |
1536 | Undefined weak syms won't yet be marked as dynamic. */ | |
1537 | if (h->dynindx == -1 | |
f5385ebf | 1538 | && !h->forced_local) |
5a15f56f | 1539 | { |
c152c796 | 1540 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1541 | return FALSE; |
5a15f56f AM |
1542 | } |
1543 | ||
4e795f50 AM |
1544 | if (info->shared |
1545 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
ced53ee5 | 1546 | { |
0ac8d2ca | 1547 | asection *s = htab->splt; |
6725bdbf | 1548 | |
ced53ee5 AM |
1549 | /* If this is the first .plt entry, make room for the special |
1550 | first entry. */ | |
eea6121a AM |
1551 | if (s->size == 0) |
1552 | s->size += PLT_ENTRY_SIZE; | |
6725bdbf | 1553 | |
eea6121a | 1554 | h->plt.offset = s->size; |
6725bdbf | 1555 | |
ced53ee5 AM |
1556 | /* If this symbol is not defined in a regular file, and we are |
1557 | not generating a shared library, then set the symbol to this | |
1558 | location in the .plt. This is required to make function | |
1559 | pointers compare as equal between the normal executable and | |
1560 | the shared library. */ | |
1561 | if (! info->shared | |
f5385ebf | 1562 | && !h->def_regular) |
ced53ee5 AM |
1563 | { |
1564 | h->root.u.def.section = s; | |
1565 | h->root.u.def.value = h->plt.offset; | |
1566 | } | |
6725bdbf | 1567 | |
ced53ee5 | 1568 | /* Make room for this entry. */ |
eea6121a | 1569 | s->size += PLT_ENTRY_SIZE; |
6725bdbf | 1570 | |
ced53ee5 AM |
1571 | /* We also need to make an entry in the .got.plt section, which |
1572 | will be placed in the .got section by the linker script. */ | |
eea6121a | 1573 | htab->sgotplt->size += 4; |
6725bdbf | 1574 | |
6725bdbf | 1575 | /* We also need to make an entry in the .rel.plt section. */ |
eea6121a | 1576 | htab->srelplt->size += sizeof (Elf32_External_Rel); |
eac338cf PB |
1577 | |
1578 | if (htab->is_vxworks && !info->shared) | |
1579 | { | |
1580 | /* VxWorks has a second set of relocations for each PLT entry | |
1581 | in executables. They go in a separate relocation section, | |
1582 | which is processed by the kernel loader. */ | |
1583 | ||
1584 | /* There are two relocations for the initial PLT entry: an | |
1585 | R_386_32 relocation for _GLOBAL_OFFSET_TABLE_ + 4 and an | |
1586 | R_386_32 relocation for _GLOBAL_OFFSET_TABLE_ + 8. */ | |
1587 | ||
1588 | if (h->plt.offset == PLT_ENTRY_SIZE) | |
1589 | htab->srelplt2->size += (sizeof (Elf32_External_Rel) * 2); | |
1590 | ||
1591 | /* There are two extra relocations for each subsequent PLT entry: | |
1592 | an R_386_32 relocation for the GOT entry, and an R_386_32 | |
1593 | relocation for the PLT entry. */ | |
1594 | ||
1595 | htab->srelplt2->size += (sizeof (Elf32_External_Rel) * 2); | |
1596 | } | |
6725bdbf | 1597 | } |
ced53ee5 AM |
1598 | else |
1599 | { | |
51b64d56 | 1600 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 1601 | h->needs_plt = 0; |
ced53ee5 | 1602 | } |
6725bdbf AM |
1603 | } |
1604 | else | |
1605 | { | |
51b64d56 | 1606 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 1607 | h->needs_plt = 0; |
6725bdbf AM |
1608 | } |
1609 | ||
37e55690 | 1610 | /* If R_386_TLS_{IE_32,IE,GOTIE} symbol is now local to the binary, |
13ae64f3 JJ |
1611 | make it a R_386_TLS_LE_32 requiring no TLS entry. */ |
1612 | if (h->got.refcount > 0 | |
1613 | && !info->shared | |
1614 | && h->dynindx == -1 | |
37e55690 | 1615 | && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE)) |
cedb70c5 | 1616 | h->got.offset = (bfd_vma) -1; |
13ae64f3 | 1617 | else if (h->got.refcount > 0) |
6725bdbf | 1618 | { |
0ac8d2ca | 1619 | asection *s; |
b34976b6 | 1620 | bfd_boolean dyn; |
13ae64f3 | 1621 | int tls_type = elf_i386_hash_entry(h)->tls_type; |
6725bdbf | 1622 | |
5a15f56f AM |
1623 | /* Make sure this symbol is output as a dynamic symbol. |
1624 | Undefined weak syms won't yet be marked as dynamic. */ | |
1625 | if (h->dynindx == -1 | |
f5385ebf | 1626 | && !h->forced_local) |
5a15f56f | 1627 | { |
c152c796 | 1628 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1629 | return FALSE; |
5a15f56f AM |
1630 | } |
1631 | ||
6725bdbf | 1632 | s = htab->sgot; |
eea6121a AM |
1633 | h->got.offset = s->size; |
1634 | s->size += 4; | |
13ae64f3 | 1635 | /* R_386_TLS_GD needs 2 consecutive GOT slots. */ |
37e55690 | 1636 | if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE_BOTH) |
eea6121a | 1637 | s->size += 4; |
ebe50bae | 1638 | dyn = htab->elf.dynamic_sections_created; |
13ae64f3 | 1639 | /* R_386_TLS_IE_32 needs one dynamic relocation, |
37e55690 JJ |
1640 | R_386_TLS_IE resp. R_386_TLS_GOTIE needs one dynamic relocation, |
1641 | (but if both R_386_TLS_IE_32 and R_386_TLS_IE is present, we | |
1642 | need two), R_386_TLS_GD needs one if local symbol and two if | |
1643 | global. */ | |
1644 | if (tls_type == GOT_TLS_IE_BOTH) | |
eea6121a | 1645 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rel); |
37e55690 JJ |
1646 | else if ((tls_type == GOT_TLS_GD && h->dynindx == -1) |
1647 | || (tls_type & GOT_TLS_IE)) | |
eea6121a | 1648 | htab->srelgot->size += sizeof (Elf32_External_Rel); |
13ae64f3 | 1649 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 1650 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rel); |
ef5aade5 L |
1651 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1652 | || h->root.type != bfd_link_hash_undefweak) | |
1653 | && (info->shared | |
1654 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
eea6121a | 1655 | htab->srelgot->size += sizeof (Elf32_External_Rel); |
6725bdbf AM |
1656 | } |
1657 | else | |
51b64d56 | 1658 | h->got.offset = (bfd_vma) -1; |
6725bdbf | 1659 | |
5a15f56f AM |
1660 | eh = (struct elf_i386_link_hash_entry *) h; |
1661 | if (eh->dyn_relocs == NULL) | |
b34976b6 | 1662 | return TRUE; |
5a15f56f | 1663 | |
0c715baa AM |
1664 | /* In the shared -Bsymbolic case, discard space allocated for |
1665 | dynamic pc-relative relocs against symbols which turn out to be | |
1666 | defined in regular objects. For the normal shared case, discard | |
0ac8d2ca AM |
1667 | space for pc-relative relocs that have become local due to symbol |
1668 | visibility changes. */ | |
0c715baa AM |
1669 | |
1670 | if (info->shared) | |
5a15f56f | 1671 | { |
09695f56 AM |
1672 | /* The only reloc that uses pc_count is R_386_PC32, which will |
1673 | appear on a call or on something like ".long foo - .". We | |
1674 | want calls to protected symbols to resolve directly to the | |
1675 | function rather than going via the plt. If people want | |
1676 | function pointer comparisons to work as expected then they | |
1677 | should avoid writing assembly like ".long foo - .". */ | |
1678 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
5a15f56f | 1679 | { |
0c715baa AM |
1680 | struct elf_i386_dyn_relocs **pp; |
1681 | ||
1682 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
1683 | { | |
1684 | p->count -= p->pc_count; | |
1685 | p->pc_count = 0; | |
1686 | if (p->count == 0) | |
1687 | *pp = p->next; | |
1688 | else | |
1689 | pp = &p->next; | |
1690 | } | |
5a15f56f | 1691 | } |
4e795f50 AM |
1692 | |
1693 | /* Also discard relocs on undefined weak syms with non-default | |
1694 | visibility. */ | |
1695 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
1696 | && h->root.type == bfd_link_hash_undefweak) | |
1697 | eh->dyn_relocs = NULL; | |
0c715baa | 1698 | } |
a23b6845 | 1699 | else if (ELIMINATE_COPY_RELOCS) |
0c715baa AM |
1700 | { |
1701 | /* For the non-shared case, discard space for relocs against | |
1702 | symbols which turn out to need copy relocs or are not | |
1703 | dynamic. */ | |
1704 | ||
f5385ebf AM |
1705 | if (!h->non_got_ref |
1706 | && ((h->def_dynamic | |
1707 | && !h->def_regular) | |
ebe50bae | 1708 | || (htab->elf.dynamic_sections_created |
0c715baa AM |
1709 | && (h->root.type == bfd_link_hash_undefweak |
1710 | || h->root.type == bfd_link_hash_undefined)))) | |
1711 | { | |
1712 | /* Make sure this symbol is output as a dynamic symbol. | |
1713 | Undefined weak syms won't yet be marked as dynamic. */ | |
1714 | if (h->dynindx == -1 | |
f5385ebf | 1715 | && !h->forced_local) |
0c715baa | 1716 | { |
c152c796 | 1717 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1718 | return FALSE; |
0c715baa | 1719 | } |
5a15f56f | 1720 | |
0c715baa AM |
1721 | /* If that succeeded, we know we'll be keeping all the |
1722 | relocs. */ | |
1723 | if (h->dynindx != -1) | |
1724 | goto keep; | |
1725 | } | |
1726 | ||
1727 | eh->dyn_relocs = NULL; | |
1728 | ||
ec338859 | 1729 | keep: ; |
5a15f56f AM |
1730 | } |
1731 | ||
0c715baa AM |
1732 | /* Finally, allocate space. */ |
1733 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
12d0ee4a | 1734 | { |
0c715baa | 1735 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
eea6121a | 1736 | sreloc->size += p->count * sizeof (Elf32_External_Rel); |
12d0ee4a AM |
1737 | } |
1738 | ||
b34976b6 | 1739 | return TRUE; |
6725bdbf AM |
1740 | } |
1741 | ||
0c715baa AM |
1742 | /* Find any dynamic relocs that apply to read-only sections. */ |
1743 | ||
b34976b6 | 1744 | static bfd_boolean |
55fd94b0 | 1745 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
0c715baa AM |
1746 | { |
1747 | struct elf_i386_link_hash_entry *eh; | |
1748 | struct elf_i386_dyn_relocs *p; | |
1749 | ||
e92d460e AM |
1750 | if (h->root.type == bfd_link_hash_warning) |
1751 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1752 | ||
0c715baa AM |
1753 | eh = (struct elf_i386_link_hash_entry *) h; |
1754 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1755 | { | |
1756 | asection *s = p->sec->output_section; | |
1757 | ||
1758 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1759 | { | |
1760 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
1761 | ||
1762 | info->flags |= DF_TEXTREL; | |
1763 | ||
1764 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 1765 | return FALSE; |
0c715baa AM |
1766 | } |
1767 | } | |
b34976b6 | 1768 | return TRUE; |
0c715baa AM |
1769 | } |
1770 | ||
252b5132 RH |
1771 | /* Set the sizes of the dynamic sections. */ |
1772 | ||
b34976b6 | 1773 | static bfd_boolean |
55fd94b0 AM |
1774 | elf_i386_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
1775 | struct bfd_link_info *info) | |
252b5132 | 1776 | { |
6725bdbf | 1777 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
1778 | bfd *dynobj; |
1779 | asection *s; | |
b34976b6 | 1780 | bfd_boolean relocs; |
0c715baa | 1781 | bfd *ibfd; |
252b5132 | 1782 | |
6725bdbf | 1783 | htab = elf_i386_hash_table (info); |
ebe50bae | 1784 | dynobj = htab->elf.dynobj; |
ffb2e45b AM |
1785 | if (dynobj == NULL) |
1786 | abort (); | |
252b5132 | 1787 | |
ebe50bae | 1788 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
1789 | { |
1790 | /* Set the contents of the .interp section to the interpreter. */ | |
36af4a4e | 1791 | if (info->executable) |
252b5132 RH |
1792 | { |
1793 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
ffb2e45b AM |
1794 | if (s == NULL) |
1795 | abort (); | |
eea6121a | 1796 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
252b5132 RH |
1797 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
1798 | } | |
161d71a6 | 1799 | } |
6725bdbf | 1800 | |
0c715baa AM |
1801 | /* Set up .got offsets for local syms, and space for local dynamic |
1802 | relocs. */ | |
1803 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
161d71a6 L |
1804 | { |
1805 | bfd_signed_vma *local_got; | |
1806 | bfd_signed_vma *end_local_got; | |
13ae64f3 | 1807 | char *local_tls_type; |
161d71a6 L |
1808 | bfd_size_type locsymcount; |
1809 | Elf_Internal_Shdr *symtab_hdr; | |
1810 | asection *srel; | |
6725bdbf | 1811 | |
0c715baa | 1812 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
161d71a6 | 1813 | continue; |
6725bdbf | 1814 | |
0c715baa AM |
1815 | for (s = ibfd->sections; s != NULL; s = s->next) |
1816 | { | |
ec338859 | 1817 | struct elf_i386_dyn_relocs *p; |
0c715baa | 1818 | |
ec338859 AM |
1819 | for (p = *((struct elf_i386_dyn_relocs **) |
1820 | &elf_section_data (s)->local_dynrel); | |
1821 | p != NULL; | |
1822 | p = p->next) | |
0c715baa | 1823 | { |
ec338859 AM |
1824 | if (!bfd_is_abs_section (p->sec) |
1825 | && bfd_is_abs_section (p->sec->output_section)) | |
1826 | { | |
1827 | /* Input section has been discarded, either because | |
1828 | it is a copy of a linkonce section or due to | |
1829 | linker script /DISCARD/, so we'll be discarding | |
1830 | the relocs too. */ | |
1831 | } | |
248866a8 | 1832 | else if (p->count != 0) |
ec338859 AM |
1833 | { |
1834 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 1835 | srel->size += p->count * sizeof (Elf32_External_Rel); |
248866a8 AM |
1836 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
1837 | info->flags |= DF_TEXTREL; | |
ec338859 | 1838 | } |
0c715baa AM |
1839 | } |
1840 | } | |
1841 | ||
1842 | local_got = elf_local_got_refcounts (ibfd); | |
161d71a6 L |
1843 | if (!local_got) |
1844 | continue; | |
6725bdbf | 1845 | |
0c715baa | 1846 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
161d71a6 L |
1847 | locsymcount = symtab_hdr->sh_info; |
1848 | end_local_got = local_got + locsymcount; | |
13ae64f3 | 1849 | local_tls_type = elf_i386_local_got_tls_type (ibfd); |
161d71a6 L |
1850 | s = htab->sgot; |
1851 | srel = htab->srelgot; | |
13ae64f3 | 1852 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
161d71a6 L |
1853 | { |
1854 | if (*local_got > 0) | |
6725bdbf | 1855 | { |
eea6121a AM |
1856 | *local_got = s->size; |
1857 | s->size += 4; | |
37e55690 JJ |
1858 | if (*local_tls_type == GOT_TLS_GD |
1859 | || *local_tls_type == GOT_TLS_IE_BOTH) | |
eea6121a | 1860 | s->size += 4; |
13ae64f3 JJ |
1861 | if (info->shared |
1862 | || *local_tls_type == GOT_TLS_GD | |
37e55690 JJ |
1863 | || (*local_tls_type & GOT_TLS_IE)) |
1864 | { | |
1865 | if (*local_tls_type == GOT_TLS_IE_BOTH) | |
eea6121a | 1866 | srel->size += 2 * sizeof (Elf32_External_Rel); |
37e55690 | 1867 | else |
eea6121a | 1868 | srel->size += sizeof (Elf32_External_Rel); |
37e55690 | 1869 | } |
6725bdbf | 1870 | } |
161d71a6 L |
1871 | else |
1872 | *local_got = (bfd_vma) -1; | |
6725bdbf | 1873 | } |
252b5132 | 1874 | } |
6725bdbf | 1875 | |
13ae64f3 JJ |
1876 | if (htab->tls_ldm_got.refcount > 0) |
1877 | { | |
1878 | /* Allocate 2 got entries and 1 dynamic reloc for R_386_TLS_LDM | |
1879 | relocs. */ | |
eea6121a AM |
1880 | htab->tls_ldm_got.offset = htab->sgot->size; |
1881 | htab->sgot->size += 8; | |
1882 | htab->srelgot->size += sizeof (Elf32_External_Rel); | |
13ae64f3 JJ |
1883 | } |
1884 | else | |
1885 | htab->tls_ldm_got.offset = -1; | |
1886 | ||
eac338cf PB |
1887 | if (htab->is_vxworks) |
1888 | { | |
1889 | /* Save the GOT and PLT symbols in the hash table for easy access. | |
1890 | Mark them as having relocations; they might not, but we won't | |
1891 | know for sure until we build the GOT in finish_dynamic_symbol. */ | |
1892 | ||
1893 | htab->hgot = elf_link_hash_lookup (elf_hash_table (info), | |
1894 | "_GLOBAL_OFFSET_TABLE_", | |
1895 | FALSE, FALSE, FALSE); | |
1896 | if (htab->hgot) | |
1897 | htab->hgot->indx = -2; | |
1898 | htab->hplt = elf_link_hash_lookup (elf_hash_table (info), | |
1899 | "_PROCEDURE_LINKAGE_TABLE_", | |
1900 | FALSE, FALSE, FALSE); | |
1901 | if (htab->hplt) | |
1902 | htab->hplt->indx = -2; | |
1903 | ||
1904 | if (htab->is_vxworks && htab->hplt && htab->splt->flags & SEC_CODE) | |
1905 | htab->hplt->type = STT_FUNC; | |
1906 | } | |
1907 | ||
0c715baa AM |
1908 | /* Allocate global sym .plt and .got entries, and space for global |
1909 | sym dynamic relocs. */ | |
ebe50bae | 1910 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
252b5132 | 1911 | |
5a15f56f AM |
1912 | /* We now have determined the sizes of the various dynamic sections. |
1913 | Allocate memory for them. */ | |
b34976b6 | 1914 | relocs = FALSE; |
252b5132 RH |
1915 | for (s = dynobj->sections; s != NULL; s = s->next) |
1916 | { | |
eac338cf PB |
1917 | bfd_boolean strip_section = TRUE; |
1918 | ||
252b5132 RH |
1919 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
1920 | continue; | |
1921 | ||
6725bdbf AM |
1922 | if (s == htab->splt |
1923 | || s == htab->sgot | |
75ff4589 L |
1924 | || s == htab->sgotplt |
1925 | || s == htab->sdynbss) | |
252b5132 | 1926 | { |
6725bdbf AM |
1927 | /* Strip this section if we don't need it; see the |
1928 | comment below. */ | |
eac338cf PB |
1929 | /* We'd like to strip these sections if they aren't needed, but if |
1930 | we've exported dynamic symbols from them we must leave them. | |
1931 | It's too late to tell BFD to get rid of the symbols. */ | |
1932 | ||
1933 | if (htab->hplt != NULL) | |
1934 | strip_section = FALSE; | |
252b5132 | 1935 | } |
6725bdbf | 1936 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rel", 4) == 0) |
252b5132 | 1937 | { |
eac338cf | 1938 | if (s->size != 0 && s != htab->srelplt && s != htab->srelplt2) |
b34976b6 | 1939 | relocs = TRUE; |
252b5132 | 1940 | |
0ac8d2ca AM |
1941 | /* We use the reloc_count field as a counter if we need |
1942 | to copy relocs into the output file. */ | |
1943 | s->reloc_count = 0; | |
252b5132 | 1944 | } |
6725bdbf | 1945 | else |
252b5132 RH |
1946 | { |
1947 | /* It's not one of our sections, so don't allocate space. */ | |
1948 | continue; | |
1949 | } | |
1950 | ||
eac338cf | 1951 | if (s->size == 0 && strip_section) |
252b5132 | 1952 | { |
0ac8d2ca AM |
1953 | /* If we don't need this section, strip it from the |
1954 | output file. This is mostly to handle .rel.bss and | |
1955 | .rel.plt. We must create both sections in | |
1956 | create_dynamic_sections, because they must be created | |
1957 | before the linker maps input sections to output | |
1958 | sections. The linker does that before | |
1959 | adjust_dynamic_symbol is called, and it is that | |
1960 | function which decides whether anything needs to go | |
1961 | into these sections. */ | |
1962 | ||
8423293d | 1963 | s->flags |= SEC_EXCLUDE; |
252b5132 RH |
1964 | continue; |
1965 | } | |
1966 | ||
f69da49f AM |
1967 | /* Allocate memory for the section contents. We use bfd_zalloc |
1968 | here in case unused entries are not reclaimed before the | |
1969 | section's contents are written out. This should not happen, | |
1970 | but this way if it does, we get a R_386_NONE reloc instead | |
1971 | of garbage. */ | |
eea6121a | 1972 | s->contents = bfd_zalloc (dynobj, s->size); |
6725bdbf | 1973 | if (s->contents == NULL) |
b34976b6 | 1974 | return FALSE; |
252b5132 RH |
1975 | } |
1976 | ||
ebe50bae | 1977 | if (htab->elf.dynamic_sections_created) |
252b5132 RH |
1978 | { |
1979 | /* Add some entries to the .dynamic section. We fill in the | |
1980 | values later, in elf_i386_finish_dynamic_sections, but we | |
1981 | must add the entries now so that we get the correct size for | |
1982 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1983 | dynamic linker and used by the debugger. */ | |
dc810e39 | 1984 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1985 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 1986 | |
36af4a4e | 1987 | if (info->executable) |
252b5132 | 1988 | { |
dc810e39 | 1989 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 1990 | return FALSE; |
252b5132 RH |
1991 | } |
1992 | ||
eea6121a | 1993 | if (htab->splt->size != 0) |
252b5132 | 1994 | { |
dc810e39 AM |
1995 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
1996 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1997 | || !add_dynamic_entry (DT_PLTREL, DT_REL) | |
1998 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1999 | return FALSE; |
252b5132 RH |
2000 | } |
2001 | ||
2002 | if (relocs) | |
2003 | { | |
dc810e39 AM |
2004 | if (!add_dynamic_entry (DT_REL, 0) |
2005 | || !add_dynamic_entry (DT_RELSZ, 0) | |
2006 | || !add_dynamic_entry (DT_RELENT, sizeof (Elf32_External_Rel))) | |
b34976b6 | 2007 | return FALSE; |
252b5132 | 2008 | |
0c715baa AM |
2009 | /* If any dynamic relocs apply to a read-only section, |
2010 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2011 | if ((info->flags & DF_TEXTREL) == 0) |
2012 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2013 | (PTR) info); | |
0c715baa AM |
2014 | |
2015 | if ((info->flags & DF_TEXTREL) != 0) | |
2016 | { | |
2017 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2018 | return FALSE; |
0c715baa | 2019 | } |
252b5132 RH |
2020 | } |
2021 | } | |
dc810e39 | 2022 | #undef add_dynamic_entry |
252b5132 | 2023 | |
b34976b6 | 2024 | return TRUE; |
252b5132 RH |
2025 | } |
2026 | ||
38701953 AM |
2027 | /* Set the correct type for an x86 ELF section. We do this by the |
2028 | section name, which is a hack, but ought to work. */ | |
2029 | ||
b34976b6 | 2030 | static bfd_boolean |
55fd94b0 AM |
2031 | elf_i386_fake_sections (bfd *abfd ATTRIBUTE_UNUSED, |
2032 | Elf_Internal_Shdr *hdr, | |
2033 | asection *sec) | |
38701953 AM |
2034 | { |
2035 | register const char *name; | |
2036 | ||
2037 | name = bfd_get_section_name (abfd, sec); | |
2038 | ||
2039 | /* This is an ugly, but unfortunately necessary hack that is | |
2040 | needed when producing EFI binaries on x86. It tells | |
2041 | elf.c:elf_fake_sections() not to consider ".reloc" as a section | |
2042 | containing ELF relocation info. We need this hack in order to | |
2043 | be able to generate ELF binaries that can be translated into | |
2044 | EFI applications (which are essentially COFF objects). Those | |
2045 | files contain a COFF ".reloc" section inside an ELFNN object, | |
2046 | which would normally cause BFD to segfault because it would | |
2047 | attempt to interpret this section as containing relocation | |
2048 | entries for section "oc". With this hack enabled, ".reloc" | |
2049 | will be treated as a normal data section, which will avoid the | |
2050 | segfault. However, you won't be able to create an ELFNN binary | |
2051 | with a section named "oc" that needs relocations, but that's | |
2052 | the kind of ugly side-effects you get when detecting section | |
2053 | types based on their names... In practice, this limitation is | |
2054 | unlikely to bite. */ | |
2055 | if (strcmp (name, ".reloc") == 0) | |
2056 | hdr->sh_type = SHT_PROGBITS; | |
2057 | ||
b34976b6 | 2058 | return TRUE; |
38701953 AM |
2059 | } |
2060 | ||
13ae64f3 JJ |
2061 | /* Return the base VMA address which should be subtracted from real addresses |
2062 | when resolving @dtpoff relocation. | |
2063 | This is PT_TLS segment p_vaddr. */ | |
2064 | ||
2065 | static bfd_vma | |
55fd94b0 | 2066 | dtpoff_base (struct bfd_link_info *info) |
13ae64f3 | 2067 | { |
e1918d23 AM |
2068 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2069 | if (elf_hash_table (info)->tls_sec == NULL) | |
6a30718d | 2070 | return 0; |
e1918d23 | 2071 | return elf_hash_table (info)->tls_sec->vma; |
13ae64f3 JJ |
2072 | } |
2073 | ||
2074 | /* Return the relocation value for @tpoff relocation | |
2075 | if STT_TLS virtual address is ADDRESS. */ | |
2076 | ||
2077 | static bfd_vma | |
55fd94b0 | 2078 | tpoff (struct bfd_link_info *info, bfd_vma address) |
13ae64f3 | 2079 | { |
e1918d23 | 2080 | struct elf_link_hash_table *htab = elf_hash_table (info); |
13ae64f3 | 2081 | |
e1918d23 AM |
2082 | /* If tls_sec is NULL, we should have signalled an error already. */ |
2083 | if (htab->tls_sec == NULL) | |
6a30718d | 2084 | return 0; |
e1918d23 | 2085 | return htab->tls_size + htab->tls_sec->vma - address; |
13ae64f3 JJ |
2086 | } |
2087 | ||
252b5132 RH |
2088 | /* Relocate an i386 ELF section. */ |
2089 | ||
b34976b6 | 2090 | static bfd_boolean |
55fd94b0 AM |
2091 | elf_i386_relocate_section (bfd *output_bfd, |
2092 | struct bfd_link_info *info, | |
2093 | bfd *input_bfd, | |
2094 | asection *input_section, | |
2095 | bfd_byte *contents, | |
2096 | Elf_Internal_Rela *relocs, | |
2097 | Elf_Internal_Sym *local_syms, | |
2098 | asection **local_sections) | |
252b5132 | 2099 | { |
6725bdbf | 2100 | struct elf_i386_link_hash_table *htab; |
252b5132 RH |
2101 | Elf_Internal_Shdr *symtab_hdr; |
2102 | struct elf_link_hash_entry **sym_hashes; | |
2103 | bfd_vma *local_got_offsets; | |
252b5132 RH |
2104 | Elf_Internal_Rela *rel; |
2105 | Elf_Internal_Rela *relend; | |
2106 | ||
6725bdbf | 2107 | htab = elf_i386_hash_table (info); |
252b5132 RH |
2108 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
2109 | sym_hashes = elf_sym_hashes (input_bfd); | |
2110 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2111 | ||
252b5132 RH |
2112 | rel = relocs; |
2113 | relend = relocs + input_section->reloc_count; | |
2114 | for (; rel < relend; rel++) | |
2115 | { | |
13ae64f3 | 2116 | unsigned int r_type; |
252b5132 RH |
2117 | reloc_howto_type *howto; |
2118 | unsigned long r_symndx; | |
2119 | struct elf_link_hash_entry *h; | |
2120 | Elf_Internal_Sym *sym; | |
2121 | asection *sec; | |
ffb2e45b | 2122 | bfd_vma off; |
252b5132 | 2123 | bfd_vma relocation; |
b34976b6 | 2124 | bfd_boolean unresolved_reloc; |
252b5132 | 2125 | bfd_reloc_status_type r; |
1b452ec6 | 2126 | unsigned int indx; |
13ae64f3 | 2127 | int tls_type; |
252b5132 RH |
2128 | |
2129 | r_type = ELF32_R_TYPE (rel->r_info); | |
55fd94b0 AM |
2130 | if (r_type == R_386_GNU_VTINHERIT |
2131 | || r_type == R_386_GNU_VTENTRY) | |
252b5132 | 2132 | continue; |
dc47f327 | 2133 | |
55fd94b0 | 2134 | if ((indx = r_type) >= R_386_standard |
13ae64f3 JJ |
2135 | && ((indx = r_type - R_386_ext_offset) - R_386_standard |
2136 | >= R_386_ext - R_386_standard) | |
2137 | && ((indx = r_type - R_386_tls_offset) - R_386_ext | |
2138 | >= R_386_tls - R_386_ext)) | |
252b5132 | 2139 | { |
6ba842b6 | 2140 | (*_bfd_error_handler) |
d003868e AM |
2141 | (_("%B: unrecognized relocation (0x%x) in section `%A'"), |
2142 | input_bfd, input_section, r_type); | |
252b5132 | 2143 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 2144 | return FALSE; |
252b5132 | 2145 | } |
1b452ec6 | 2146 | howto = elf_howto_table + indx; |
252b5132 RH |
2147 | |
2148 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2149 | ||
1049f94e | 2150 | if (info->relocatable) |
252b5132 | 2151 | { |
4a335f3d | 2152 | bfd_vma val; |
4a335f3d AM |
2153 | bfd_byte *where; |
2154 | ||
0ac8d2ca | 2155 | /* This is a relocatable link. We don't have to change |
252b5132 RH |
2156 | anything, unless the reloc is against a section symbol, |
2157 | in which case we have to adjust according to where the | |
2158 | section symbol winds up in the output section. */ | |
4a335f3d AM |
2159 | if (r_symndx >= symtab_hdr->sh_info) |
2160 | continue; | |
2161 | ||
2162 | sym = local_syms + r_symndx; | |
2163 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2164 | continue; | |
2165 | ||
2166 | sec = local_sections[r_symndx]; | |
2167 | val = sec->output_offset; | |
2168 | if (val == 0) | |
2169 | continue; | |
2170 | ||
2171 | where = contents + rel->r_offset; | |
2172 | switch (howto->size) | |
252b5132 | 2173 | { |
16a10388 | 2174 | /* FIXME: overflow checks. */ |
4a335f3d | 2175 | case 0: |
16a10388 | 2176 | val += bfd_get_8 (input_bfd, where); |
4a335f3d | 2177 | bfd_put_8 (input_bfd, val, where); |
4a335f3d AM |
2178 | break; |
2179 | case 1: | |
16a10388 | 2180 | val += bfd_get_16 (input_bfd, where); |
4a335f3d | 2181 | bfd_put_16 (input_bfd, val, where); |
4a335f3d AM |
2182 | break; |
2183 | case 2: | |
2184 | val += bfd_get_32 (input_bfd, where); | |
2185 | bfd_put_32 (input_bfd, val, where); | |
2186 | break; | |
2187 | default: | |
2188 | abort (); | |
252b5132 | 2189 | } |
252b5132 RH |
2190 | continue; |
2191 | } | |
2192 | ||
2193 | /* This is a final link. */ | |
2194 | h = NULL; | |
2195 | sym = NULL; | |
2196 | sec = NULL; | |
b34976b6 | 2197 | unresolved_reloc = FALSE; |
252b5132 RH |
2198 | if (r_symndx < symtab_hdr->sh_info) |
2199 | { | |
2200 | sym = local_syms + r_symndx; | |
2201 | sec = local_sections[r_symndx]; | |
2202 | relocation = (sec->output_section->vma | |
2203 | + sec->output_offset | |
2204 | + sym->st_value); | |
f8df10f4 JJ |
2205 | if ((sec->flags & SEC_MERGE) |
2206 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
2207 | { | |
2208 | asection *msec; | |
2209 | bfd_vma addend; | |
4a335f3d | 2210 | bfd_byte *where = contents + rel->r_offset; |
f8df10f4 | 2211 | |
4a335f3d | 2212 | switch (howto->size) |
f8df10f4 | 2213 | { |
4a335f3d AM |
2214 | case 0: |
2215 | addend = bfd_get_8 (input_bfd, where); | |
2216 | if (howto->pc_relative) | |
2217 | { | |
2218 | addend = (addend ^ 0x80) - 0x80; | |
2219 | addend += 1; | |
2220 | } | |
2221 | break; | |
2222 | case 1: | |
2223 | addend = bfd_get_16 (input_bfd, where); | |
2224 | if (howto->pc_relative) | |
2225 | { | |
2226 | addend = (addend ^ 0x8000) - 0x8000; | |
2227 | addend += 2; | |
2228 | } | |
2229 | break; | |
2230 | case 2: | |
2231 | addend = bfd_get_32 (input_bfd, where); | |
2232 | if (howto->pc_relative) | |
2233 | { | |
2234 | addend = (addend ^ 0x80000000) - 0x80000000; | |
2235 | addend += 4; | |
2236 | } | |
2237 | break; | |
2238 | default: | |
2239 | abort (); | |
f8df10f4 JJ |
2240 | } |
2241 | ||
f8df10f4 | 2242 | msec = sec; |
4a335f3d AM |
2243 | addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); |
2244 | addend -= relocation; | |
f8df10f4 | 2245 | addend += msec->output_section->vma + msec->output_offset; |
4a335f3d AM |
2246 | |
2247 | switch (howto->size) | |
2248 | { | |
2249 | case 0: | |
16a10388 | 2250 | /* FIXME: overflow checks. */ |
4a335f3d AM |
2251 | if (howto->pc_relative) |
2252 | addend -= 1; | |
2253 | bfd_put_8 (input_bfd, addend, where); | |
4a335f3d AM |
2254 | break; |
2255 | case 1: | |
2256 | if (howto->pc_relative) | |
2257 | addend -= 2; | |
2258 | bfd_put_16 (input_bfd, addend, where); | |
4a335f3d AM |
2259 | break; |
2260 | case 2: | |
2261 | if (howto->pc_relative) | |
2262 | addend -= 4; | |
2263 | bfd_put_32 (input_bfd, addend, where); | |
2264 | break; | |
2265 | } | |
f8df10f4 | 2266 | } |
252b5132 RH |
2267 | } |
2268 | else | |
2269 | { | |
560e09e9 | 2270 | bfd_boolean warned; |
ffb2e45b | 2271 | |
b2a8e766 AM |
2272 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2273 | r_symndx, symtab_hdr, sym_hashes, | |
2274 | h, sec, relocation, | |
2275 | unresolved_reloc, warned); | |
252b5132 RH |
2276 | } |
2277 | ||
9635fe29 AM |
2278 | if (r_symndx == 0) |
2279 | { | |
2280 | /* r_symndx will be zero only for relocs against symbols from | |
2281 | removed linkonce sections, or sections discarded by a linker | |
2282 | script. For these relocs, we just want the section contents | |
2283 | zeroed. Avoid any special processing in the switch below. */ | |
2284 | r_type = R_386_NONE; | |
2285 | ||
2286 | relocation = 0; | |
2287 | if (howto->pc_relative) | |
2288 | relocation = (input_section->output_section->vma | |
2289 | + input_section->output_offset | |
2290 | + rel->r_offset); | |
2291 | } | |
2292 | ||
252b5132 RH |
2293 | switch (r_type) |
2294 | { | |
2295 | case R_386_GOT32: | |
2296 | /* Relocation is to the entry for this symbol in the global | |
2297 | offset table. */ | |
ffb2e45b AM |
2298 | if (htab->sgot == NULL) |
2299 | abort (); | |
252b5132 RH |
2300 | |
2301 | if (h != NULL) | |
2302 | { | |
b34976b6 | 2303 | bfd_boolean dyn; |
252b5132 RH |
2304 | |
2305 | off = h->got.offset; | |
ebe50bae | 2306 | dyn = htab->elf.dynamic_sections_created; |
26e41594 | 2307 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
252b5132 | 2308 | || (info->shared |
586119b3 | 2309 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
ef5aade5 L |
2310 | || (ELF_ST_VISIBILITY (h->other) |
2311 | && h->root.type == bfd_link_hash_undefweak)) | |
252b5132 RH |
2312 | { |
2313 | /* This is actually a static link, or it is a | |
2314 | -Bsymbolic link and the symbol is defined | |
2315 | locally, or the symbol was forced to be local | |
2316 | because of a version file. We must initialize | |
2317 | this entry in the global offset table. Since the | |
2318 | offset must always be a multiple of 4, we use the | |
2319 | least significant bit to record whether we have | |
2320 | initialized it already. | |
2321 | ||
2322 | When doing a dynamic link, we create a .rel.got | |
2323 | relocation entry to initialize the value. This | |
2324 | is done in the finish_dynamic_symbol routine. */ | |
2325 | if ((off & 1) != 0) | |
2326 | off &= ~1; | |
2327 | else | |
2328 | { | |
2329 | bfd_put_32 (output_bfd, relocation, | |
6725bdbf | 2330 | htab->sgot->contents + off); |
252b5132 RH |
2331 | h->got.offset |= 1; |
2332 | } | |
2333 | } | |
8c694914 | 2334 | else |
b34976b6 | 2335 | unresolved_reloc = FALSE; |
252b5132 RH |
2336 | } |
2337 | else | |
2338 | { | |
ffb2e45b AM |
2339 | if (local_got_offsets == NULL) |
2340 | abort (); | |
252b5132 RH |
2341 | |
2342 | off = local_got_offsets[r_symndx]; | |
2343 | ||
2344 | /* The offset must always be a multiple of 4. We use | |
83be169b AM |
2345 | the least significant bit to record whether we have |
2346 | already generated the necessary reloc. */ | |
252b5132 RH |
2347 | if ((off & 1) != 0) |
2348 | off &= ~1; | |
2349 | else | |
2350 | { | |
6725bdbf AM |
2351 | bfd_put_32 (output_bfd, relocation, |
2352 | htab->sgot->contents + off); | |
252b5132 RH |
2353 | |
2354 | if (info->shared) | |
2355 | { | |
947216bf AM |
2356 | asection *s; |
2357 | Elf_Internal_Rela outrel; | |
2358 | bfd_byte *loc; | |
252b5132 | 2359 | |
947216bf AM |
2360 | s = htab->srelgot; |
2361 | if (s == NULL) | |
ffb2e45b | 2362 | abort (); |
252b5132 | 2363 | |
6725bdbf AM |
2364 | outrel.r_offset = (htab->sgot->output_section->vma |
2365 | + htab->sgot->output_offset | |
252b5132 RH |
2366 | + off); |
2367 | outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); | |
947216bf AM |
2368 | loc = s->contents; |
2369 | loc += s->reloc_count++ * sizeof (Elf32_External_Rel); | |
0ac8d2ca | 2370 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
252b5132 RH |
2371 | } |
2372 | ||
2373 | local_got_offsets[r_symndx] |= 1; | |
2374 | } | |
252b5132 RH |
2375 | } |
2376 | ||
ffb2e45b AM |
2377 | if (off >= (bfd_vma) -2) |
2378 | abort (); | |
2379 | ||
8c37241b JJ |
2380 | relocation = htab->sgot->output_section->vma |
2381 | + htab->sgot->output_offset + off | |
2382 | - htab->sgotplt->output_section->vma | |
2383 | - htab->sgotplt->output_offset; | |
252b5132 RH |
2384 | break; |
2385 | ||
2386 | case R_386_GOTOFF: | |
2387 | /* Relocation is relative to the start of the global offset | |
2388 | table. */ | |
2389 | ||
90f487df L |
2390 | /* Check to make sure it isn't a protected function symbol |
2391 | for shared library since it may not be local when used | |
2392 | as function address. */ | |
2393 | if (info->shared | |
8fe76924 | 2394 | && !info->executable |
90f487df L |
2395 | && h |
2396 | && h->def_regular | |
2397 | && h->type == STT_FUNC | |
2398 | && ELF_ST_VISIBILITY (h->other) == STV_PROTECTED) | |
2399 | { | |
2400 | (*_bfd_error_handler) | |
2401 | (_("%B: relocation R_386_GOTOFF against protected function `%s' can not be used when making a shared object"), | |
2402 | input_bfd, h->root.root.string); | |
2403 | bfd_set_error (bfd_error_bad_value); | |
2404 | return FALSE; | |
2405 | } | |
2406 | ||
8c37241b JJ |
2407 | /* Note that sgot is not involved in this |
2408 | calculation. We always want the start of .got.plt. If we | |
2409 | defined _GLOBAL_OFFSET_TABLE_ in a different way, as is | |
252b5132 RH |
2410 | permitted by the ABI, we might have to change this |
2411 | calculation. */ | |
8c37241b JJ |
2412 | relocation -= htab->sgotplt->output_section->vma |
2413 | + htab->sgotplt->output_offset; | |
252b5132 RH |
2414 | break; |
2415 | ||
2416 | case R_386_GOTPC: | |
2417 | /* Use global offset table as symbol value. */ | |
8c37241b JJ |
2418 | relocation = htab->sgotplt->output_section->vma |
2419 | + htab->sgotplt->output_offset; | |
b34976b6 | 2420 | unresolved_reloc = FALSE; |
252b5132 RH |
2421 | break; |
2422 | ||
2423 | case R_386_PLT32: | |
2424 | /* Relocation is to the entry for this symbol in the | |
2425 | procedure linkage table. */ | |
2426 | ||
dd5724d5 | 2427 | /* Resolve a PLT32 reloc against a local symbol directly, |
83be169b | 2428 | without using the procedure linkage table. */ |
252b5132 RH |
2429 | if (h == NULL) |
2430 | break; | |
2431 | ||
dd5724d5 | 2432 | if (h->plt.offset == (bfd_vma) -1 |
6725bdbf | 2433 | || htab->splt == NULL) |
252b5132 RH |
2434 | { |
2435 | /* We didn't make a PLT entry for this symbol. This | |
83be169b AM |
2436 | happens when statically linking PIC code, or when |
2437 | using -Bsymbolic. */ | |
252b5132 RH |
2438 | break; |
2439 | } | |
2440 | ||
6725bdbf AM |
2441 | relocation = (htab->splt->output_section->vma |
2442 | + htab->splt->output_offset | |
252b5132 | 2443 | + h->plt.offset); |
b34976b6 | 2444 | unresolved_reloc = FALSE; |
252b5132 RH |
2445 | break; |
2446 | ||
2447 | case R_386_32: | |
2448 | case R_386_PC32: | |
f855931b | 2449 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
2450 | break; |
2451 | ||
12d0ee4a | 2452 | if ((info->shared |
ef5aade5 L |
2453 | && (h == NULL |
2454 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2455 | || h->root.type != bfd_link_hash_undefweak) | |
12d0ee4a | 2456 | && (r_type != R_386_PC32 |
f6c52c13 | 2457 | || !SYMBOL_CALLS_LOCAL (info, h))) |
a23b6845 AM |
2458 | || (ELIMINATE_COPY_RELOCS |
2459 | && !info->shared | |
12d0ee4a AM |
2460 | && h != NULL |
2461 | && h->dynindx != -1 | |
f5385ebf AM |
2462 | && !h->non_got_ref |
2463 | && ((h->def_dynamic | |
2464 | && !h->def_regular) | |
28d0b90e AM |
2465 | || h->root.type == bfd_link_hash_undefweak |
2466 | || h->root.type == bfd_link_hash_undefined))) | |
252b5132 | 2467 | { |
947216bf AM |
2468 | Elf_Internal_Rela outrel; |
2469 | bfd_byte *loc; | |
b34976b6 | 2470 | bfd_boolean skip, relocate; |
0c715baa | 2471 | asection *sreloc; |
252b5132 RH |
2472 | |
2473 | /* When generating a shared object, these relocations | |
2474 | are copied into the output file to be resolved at run | |
2475 | time. */ | |
2476 | ||
b34976b6 AM |
2477 | skip = FALSE; |
2478 | relocate = FALSE; | |
252b5132 | 2479 | |
c629eae0 JJ |
2480 | outrel.r_offset = |
2481 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
2482 | rel->r_offset); | |
2483 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 2484 | skip = TRUE; |
0bb2d96a | 2485 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 2486 | skip = TRUE, relocate = TRUE; |
252b5132 RH |
2487 | outrel.r_offset += (input_section->output_section->vma |
2488 | + input_section->output_offset); | |
2489 | ||
2490 | if (skip) | |
0bb2d96a | 2491 | memset (&outrel, 0, sizeof outrel); |
5a15f56f AM |
2492 | else if (h != NULL |
2493 | && h->dynindx != -1 | |
2494 | && (r_type == R_386_PC32 | |
2495 | || !info->shared | |
2496 | || !info->symbolic | |
f5385ebf | 2497 | || !h->def_regular)) |
0bb2d96a | 2498 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); |
252b5132 RH |
2499 | else |
2500 | { | |
5a15f56f | 2501 | /* This symbol is local, or marked to become local. */ |
b34976b6 | 2502 | relocate = TRUE; |
5a15f56f | 2503 | outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); |
252b5132 RH |
2504 | } |
2505 | ||
0c715baa AM |
2506 | sreloc = elf_section_data (input_section)->sreloc; |
2507 | if (sreloc == NULL) | |
2508 | abort (); | |
2509 | ||
947216bf AM |
2510 | loc = sreloc->contents; |
2511 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); | |
0c715baa | 2512 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
252b5132 RH |
2513 | |
2514 | /* If this reloc is against an external symbol, we do | |
2515 | not want to fiddle with the addend. Otherwise, we | |
2516 | need to include the symbol value so that it becomes | |
2517 | an addend for the dynamic reloc. */ | |
2518 | if (! relocate) | |
2519 | continue; | |
2520 | } | |
252b5132 RH |
2521 | break; |
2522 | ||
37e55690 JJ |
2523 | case R_386_TLS_IE: |
2524 | if (info->shared) | |
2525 | { | |
947216bf AM |
2526 | Elf_Internal_Rela outrel; |
2527 | bfd_byte *loc; | |
37e55690 | 2528 | asection *sreloc; |
37e55690 JJ |
2529 | |
2530 | outrel.r_offset = rel->r_offset | |
2531 | + input_section->output_section->vma | |
2532 | + input_section->output_offset; | |
2533 | outrel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); | |
2534 | sreloc = elf_section_data (input_section)->sreloc; | |
2535 | if (sreloc == NULL) | |
2536 | abort (); | |
947216bf AM |
2537 | loc = sreloc->contents; |
2538 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); | |
37e55690 JJ |
2539 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
2540 | } | |
2541 | /* Fall through */ | |
2542 | ||
13ae64f3 JJ |
2543 | case R_386_TLS_GD: |
2544 | case R_386_TLS_IE_32: | |
37e55690 | 2545 | case R_386_TLS_GOTIE: |
13ae64f3 JJ |
2546 | r_type = elf_i386_tls_transition (info, r_type, h == NULL); |
2547 | tls_type = GOT_UNKNOWN; | |
2548 | if (h == NULL && local_got_offsets) | |
2549 | tls_type = elf_i386_local_got_tls_type (input_bfd) [r_symndx]; | |
2550 | else if (h != NULL) | |
2551 | { | |
2552 | tls_type = elf_i386_hash_entry(h)->tls_type; | |
37e55690 | 2553 | if (!info->shared && h->dynindx == -1 && (tls_type & GOT_TLS_IE)) |
13ae64f3 JJ |
2554 | r_type = R_386_TLS_LE_32; |
2555 | } | |
37e55690 JJ |
2556 | if (tls_type == GOT_TLS_IE) |
2557 | tls_type = GOT_TLS_IE_NEG; | |
2558 | if (r_type == R_386_TLS_GD) | |
2559 | { | |
2560 | if (tls_type == GOT_TLS_IE_POS) | |
2561 | r_type = R_386_TLS_GOTIE; | |
2562 | else if (tls_type & GOT_TLS_IE) | |
2563 | r_type = R_386_TLS_IE_32; | |
2564 | } | |
13ae64f3 JJ |
2565 | |
2566 | if (r_type == R_386_TLS_LE_32) | |
2567 | { | |
82e51918 | 2568 | BFD_ASSERT (! unresolved_reloc); |
13ae64f3 JJ |
2569 | if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GD) |
2570 | { | |
2571 | unsigned int val, type; | |
2572 | bfd_vma roff; | |
2573 | ||
2574 | /* GD->LE transition. */ | |
2575 | BFD_ASSERT (rel->r_offset >= 2); | |
2576 | type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); | |
2577 | BFD_ASSERT (type == 0x8d || type == 0x04); | |
eea6121a | 2578 | BFD_ASSERT (rel->r_offset + 9 <= input_section->size); |
13ae64f3 JJ |
2579 | BFD_ASSERT (bfd_get_8 (input_bfd, |
2580 | contents + rel->r_offset + 4) | |
2581 | == 0xe8); | |
2582 | BFD_ASSERT (rel + 1 < relend); | |
2583 | BFD_ASSERT (ELF32_R_TYPE (rel[1].r_info) == R_386_PLT32); | |
2584 | roff = rel->r_offset + 5; | |
2585 | val = bfd_get_8 (input_bfd, | |
2586 | contents + rel->r_offset - 1); | |
2587 | if (type == 0x04) | |
2588 | { | |
2589 | /* leal foo(,%reg,1), %eax; call ___tls_get_addr | |
2590 | Change it into: | |
2591 | movl %gs:0, %eax; subl $foo@tpoff, %eax | |
2592 | (6 byte form of subl). */ | |
2593 | BFD_ASSERT (rel->r_offset >= 3); | |
2594 | BFD_ASSERT (bfd_get_8 (input_bfd, | |
2595 | contents + rel->r_offset - 3) | |
2596 | == 0x8d); | |
2597 | BFD_ASSERT ((val & 0xc7) == 0x05 && val != (4 << 3)); | |
2598 | memcpy (contents + rel->r_offset - 3, | |
2599 | "\x65\xa1\0\0\0\0\x81\xe8\0\0\0", 12); | |
2600 | } | |
2601 | else | |
2602 | { | |
2603 | BFD_ASSERT ((val & 0xf8) == 0x80 && (val & 7) != 4); | |
eea6121a | 2604 | if (rel->r_offset + 10 <= input_section->size |
13ae64f3 JJ |
2605 | && bfd_get_8 (input_bfd, |
2606 | contents + rel->r_offset + 9) == 0x90) | |
2607 | { | |
2608 | /* leal foo(%reg), %eax; call ___tls_get_addr; nop | |
2609 | Change it into: | |
2610 | movl %gs:0, %eax; subl $foo@tpoff, %eax | |
2611 | (6 byte form of subl). */ | |
2612 | memcpy (contents + rel->r_offset - 2, | |
2613 | "\x65\xa1\0\0\0\0\x81\xe8\0\0\0", 12); | |
2614 | roff = rel->r_offset + 6; | |
2615 | } | |
2616 | else | |
2617 | { | |
2618 | /* leal foo(%reg), %eax; call ___tls_get_addr | |
2619 | Change it into: | |
2620 | movl %gs:0, %eax; subl $foo@tpoff, %eax | |
2621 | (5 byte form of subl). */ | |
2622 | memcpy (contents + rel->r_offset - 2, | |
2623 | "\x65\xa1\0\0\0\0\x2d\0\0\0", 11); | |
2624 | } | |
2625 | } | |
2626 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
2627 | contents + roff); | |
2628 | /* Skip R_386_PLT32. */ | |
2629 | rel++; | |
2630 | continue; | |
2631 | } | |
37e55690 | 2632 | else if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_IE) |
13ae64f3 JJ |
2633 | { |
2634 | unsigned int val, type; | |
2635 | ||
2636 | /* IE->LE transition: | |
37e55690 JJ |
2637 | Originally it can be one of: |
2638 | movl foo, %eax | |
2639 | movl foo, %reg | |
2640 | addl foo, %reg | |
2641 | We change it into: | |
2642 | movl $foo, %eax | |
2643 | movl $foo, %reg | |
2644 | addl $foo, %reg. */ | |
2645 | BFD_ASSERT (rel->r_offset >= 1); | |
2646 | val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); | |
eea6121a | 2647 | BFD_ASSERT (rel->r_offset + 4 <= input_section->size); |
37e55690 JJ |
2648 | if (val == 0xa1) |
2649 | { | |
2650 | /* movl foo, %eax. */ | |
55fd94b0 AM |
2651 | bfd_put_8 (output_bfd, 0xb8, |
2652 | contents + rel->r_offset - 1); | |
37e55690 | 2653 | } |
299bf759 | 2654 | else |
37e55690 | 2655 | { |
299bf759 | 2656 | BFD_ASSERT (rel->r_offset >= 2); |
55fd94b0 AM |
2657 | type = bfd_get_8 (input_bfd, |
2658 | contents + rel->r_offset - 2); | |
299bf759 | 2659 | switch (type) |
26e41594 | 2660 | { |
299bf759 L |
2661 | case 0x8b: |
2662 | /* movl */ | |
2663 | BFD_ASSERT ((val & 0xc7) == 0x05); | |
2664 | bfd_put_8 (output_bfd, 0xc7, | |
2665 | contents + rel->r_offset - 2); | |
2666 | bfd_put_8 (output_bfd, | |
2667 | 0xc0 | ((val >> 3) & 7), | |
2668 | contents + rel->r_offset - 1); | |
2669 | break; | |
2670 | case 0x03: | |
2671 | /* addl */ | |
2672 | BFD_ASSERT ((val & 0xc7) == 0x05); | |
2673 | bfd_put_8 (output_bfd, 0x81, | |
2674 | contents + rel->r_offset - 2); | |
2675 | bfd_put_8 (output_bfd, | |
2676 | 0xc0 | ((val >> 3) & 7), | |
2677 | contents + rel->r_offset - 1); | |
2678 | break; | |
2679 | default: | |
2680 | BFD_FAIL (); | |
2681 | break; | |
26e41594 | 2682 | } |
37e55690 | 2683 | } |
37e55690 JJ |
2684 | bfd_put_32 (output_bfd, -tpoff (info, relocation), |
2685 | contents + rel->r_offset); | |
2686 | continue; | |
2687 | } | |
2688 | else | |
2689 | { | |
2690 | unsigned int val, type; | |
2691 | ||
2692 | /* {IE_32,GOTIE}->LE transition: | |
2693 | Originally it can be one of: | |
13ae64f3 | 2694 | subl foo(%reg1), %reg2 |
13ae64f3 | 2695 | movl foo(%reg1), %reg2 |
37e55690 | 2696 | addl foo(%reg1), %reg2 |
13ae64f3 JJ |
2697 | We change it into: |
2698 | subl $foo, %reg2 | |
37e55690 JJ |
2699 | movl $foo, %reg2 (6 byte form) |
2700 | addl $foo, %reg2. */ | |
13ae64f3 JJ |
2701 | BFD_ASSERT (rel->r_offset >= 2); |
2702 | type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); | |
2703 | val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); | |
eea6121a | 2704 | BFD_ASSERT (rel->r_offset + 4 <= input_section->size); |
37e55690 | 2705 | BFD_ASSERT ((val & 0xc0) == 0x80 && (val & 7) != 4); |
13ae64f3 JJ |
2706 | if (type == 0x8b) |
2707 | { | |
2708 | /* movl */ | |
13ae64f3 JJ |
2709 | bfd_put_8 (output_bfd, 0xc7, |
2710 | contents + rel->r_offset - 2); | |
2711 | bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), | |
2712 | contents + rel->r_offset - 1); | |
2713 | } | |
2714 | else if (type == 0x2b) | |
2715 | { | |
2716 | /* subl */ | |
13ae64f3 JJ |
2717 | bfd_put_8 (output_bfd, 0x81, |
2718 | contents + rel->r_offset - 2); | |
2719 | bfd_put_8 (output_bfd, 0xe8 | ((val >> 3) & 7), | |
2720 | contents + rel->r_offset - 1); | |
2721 | } | |
37e55690 JJ |
2722 | else if (type == 0x03) |
2723 | { | |
2724 | /* addl */ | |
2725 | bfd_put_8 (output_bfd, 0x81, | |
2726 | contents + rel->r_offset - 2); | |
2727 | bfd_put_8 (output_bfd, 0xc0 | ((val >> 3) & 7), | |
2728 | contents + rel->r_offset - 1); | |
2729 | } | |
13ae64f3 JJ |
2730 | else |
2731 | BFD_FAIL (); | |
37e55690 JJ |
2732 | if (ELF32_R_TYPE (rel->r_info) == R_386_TLS_GOTIE) |
2733 | bfd_put_32 (output_bfd, -tpoff (info, relocation), | |
2734 | contents + rel->r_offset); | |
2735 | else | |
2736 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
2737 | contents + rel->r_offset); | |
13ae64f3 JJ |
2738 | continue; |
2739 | } | |
2740 | } | |
2741 | ||
2742 | if (htab->sgot == NULL) | |
2743 | abort (); | |
2744 | ||
2745 | if (h != NULL) | |
2746 | off = h->got.offset; | |
2747 | else | |
2748 | { | |
2749 | if (local_got_offsets == NULL) | |
2750 | abort (); | |
2751 | ||
2752 | off = local_got_offsets[r_symndx]; | |
2753 | } | |
2754 | ||
2755 | if ((off & 1) != 0) | |
2756 | off &= ~1; | |
26e41594 | 2757 | else |
13ae64f3 | 2758 | { |
947216bf AM |
2759 | Elf_Internal_Rela outrel; |
2760 | bfd_byte *loc; | |
13ae64f3 JJ |
2761 | int dr_type, indx; |
2762 | ||
2763 | if (htab->srelgot == NULL) | |
2764 | abort (); | |
2765 | ||
2766 | outrel.r_offset = (htab->sgot->output_section->vma | |
2767 | + htab->sgot->output_offset + off); | |
2768 | ||
13ae64f3 JJ |
2769 | indx = h && h->dynindx != -1 ? h->dynindx : 0; |
2770 | if (r_type == R_386_TLS_GD) | |
2771 | dr_type = R_386_TLS_DTPMOD32; | |
37e55690 JJ |
2772 | else if (tls_type == GOT_TLS_IE_POS) |
2773 | dr_type = R_386_TLS_TPOFF; | |
13ae64f3 JJ |
2774 | else |
2775 | dr_type = R_386_TLS_TPOFF32; | |
37e55690 JJ |
2776 | if (dr_type == R_386_TLS_TPOFF && indx == 0) |
2777 | bfd_put_32 (output_bfd, relocation - dtpoff_base (info), | |
2778 | htab->sgot->contents + off); | |
2779 | else if (dr_type == R_386_TLS_TPOFF32 && indx == 0) | |
c5c1f40c | 2780 | bfd_put_32 (output_bfd, dtpoff_base (info) - relocation, |
c366c25e JJ |
2781 | htab->sgot->contents + off); |
2782 | else | |
2783 | bfd_put_32 (output_bfd, 0, | |
2784 | htab->sgot->contents + off); | |
13ae64f3 | 2785 | outrel.r_info = ELF32_R_INFO (indx, dr_type); |
947216bf AM |
2786 | loc = htab->srelgot->contents; |
2787 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
13ae64f3 JJ |
2788 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
2789 | ||
2790 | if (r_type == R_386_TLS_GD) | |
2791 | { | |
2792 | if (indx == 0) | |
2793 | { | |
82e51918 | 2794 | BFD_ASSERT (! unresolved_reloc); |
13ae64f3 JJ |
2795 | bfd_put_32 (output_bfd, |
2796 | relocation - dtpoff_base (info), | |
2797 | htab->sgot->contents + off + 4); | |
2798 | } | |
2799 | else | |
2800 | { | |
2801 | bfd_put_32 (output_bfd, 0, | |
2802 | htab->sgot->contents + off + 4); | |
2803 | outrel.r_info = ELF32_R_INFO (indx, | |
2804 | R_386_TLS_DTPOFF32); | |
2805 | outrel.r_offset += 4; | |
2806 | htab->srelgot->reloc_count++; | |
947216bf AM |
2807 | loc += sizeof (Elf32_External_Rel); |
2808 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); | |
13ae64f3 JJ |
2809 | } |
2810 | } | |
37e55690 JJ |
2811 | else if (tls_type == GOT_TLS_IE_BOTH) |
2812 | { | |
2813 | bfd_put_32 (output_bfd, | |
2814 | indx == 0 ? relocation - dtpoff_base (info) : 0, | |
2815 | htab->sgot->contents + off + 4); | |
2816 | outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF); | |
2817 | outrel.r_offset += 4; | |
2818 | htab->srelgot->reloc_count++; | |
947216bf | 2819 | loc += sizeof (Elf32_External_Rel); |
37e55690 JJ |
2820 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
2821 | } | |
13ae64f3 JJ |
2822 | |
2823 | if (h != NULL) | |
2824 | h->got.offset |= 1; | |
2825 | else | |
2826 | local_got_offsets[r_symndx] |= 1; | |
2827 | } | |
2828 | ||
2829 | if (off >= (bfd_vma) -2) | |
2830 | abort (); | |
2831 | if (r_type == ELF32_R_TYPE (rel->r_info)) | |
2832 | { | |
8c37241b JJ |
2833 | bfd_vma g_o_t = htab->sgotplt->output_section->vma |
2834 | + htab->sgotplt->output_offset; | |
2835 | relocation = htab->sgot->output_section->vma | |
2836 | + htab->sgot->output_offset + off - g_o_t; | |
37e55690 JJ |
2837 | if ((r_type == R_386_TLS_IE || r_type == R_386_TLS_GOTIE) |
2838 | && tls_type == GOT_TLS_IE_BOTH) | |
2839 | relocation += 4; | |
2840 | if (r_type == R_386_TLS_IE) | |
8c37241b | 2841 | relocation += g_o_t; |
b34976b6 | 2842 | unresolved_reloc = FALSE; |
13ae64f3 JJ |
2843 | } |
2844 | else | |
2845 | { | |
2846 | unsigned int val, type; | |
2847 | bfd_vma roff; | |
2848 | ||
2849 | /* GD->IE transition. */ | |
2850 | BFD_ASSERT (rel->r_offset >= 2); | |
2851 | type = bfd_get_8 (input_bfd, contents + rel->r_offset - 2); | |
2852 | BFD_ASSERT (type == 0x8d || type == 0x04); | |
eea6121a | 2853 | BFD_ASSERT (rel->r_offset + 9 <= input_section->size); |
13ae64f3 JJ |
2854 | BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset + 4) |
2855 | == 0xe8); | |
2856 | BFD_ASSERT (rel + 1 < relend); | |
2857 | BFD_ASSERT (ELF32_R_TYPE (rel[1].r_info) == R_386_PLT32); | |
2858 | roff = rel->r_offset - 3; | |
2859 | val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); | |
2860 | if (type == 0x04) | |
2861 | { | |
2862 | /* leal foo(,%reg,1), %eax; call ___tls_get_addr | |
2863 | Change it into: | |
2864 | movl %gs:0, %eax; subl $foo@gottpoff(%reg), %eax. */ | |
2865 | BFD_ASSERT (rel->r_offset >= 3); | |
2866 | BFD_ASSERT (bfd_get_8 (input_bfd, | |
2867 | contents + rel->r_offset - 3) | |
2868 | == 0x8d); | |
2869 | BFD_ASSERT ((val & 0xc7) == 0x05 && val != (4 << 3)); | |
2870 | val >>= 3; | |
2871 | } | |
2872 | else | |
2873 | { | |
2874 | /* leal foo(%reg), %eax; call ___tls_get_addr; nop | |
2875 | Change it into: | |
2876 | movl %gs:0, %eax; subl $foo@gottpoff(%reg), %eax. */ | |
eea6121a | 2877 | BFD_ASSERT (rel->r_offset + 10 <= input_section->size); |
13ae64f3 JJ |
2878 | BFD_ASSERT ((val & 0xf8) == 0x80 && (val & 7) != 4); |
2879 | BFD_ASSERT (bfd_get_8 (input_bfd, | |
2880 | contents + rel->r_offset + 9) | |
2881 | == 0x90); | |
2882 | roff = rel->r_offset - 2; | |
2883 | } | |
2884 | memcpy (contents + roff, | |
2885 | "\x65\xa1\0\0\0\0\x2b\x80\0\0\0", 12); | |
2886 | contents[roff + 7] = 0x80 | (val & 7); | |
37e55690 JJ |
2887 | /* If foo is used only with foo@gotntpoff(%reg) and |
2888 | foo@indntpoff, but not with foo@gottpoff(%reg), change | |
2889 | subl $foo@gottpoff(%reg), %eax | |
2890 | into: | |
2891 | addl $foo@gotntpoff(%reg), %eax. */ | |
2892 | if (r_type == R_386_TLS_GOTIE) | |
2893 | { | |
2894 | contents[roff + 6] = 0x03; | |
2895 | if (tls_type == GOT_TLS_IE_BOTH) | |
2896 | off += 4; | |
2897 | } | |
8c37241b JJ |
2898 | bfd_put_32 (output_bfd, |
2899 | htab->sgot->output_section->vma | |
2900 | + htab->sgot->output_offset + off | |
2901 | - htab->sgotplt->output_section->vma | |
2902 | - htab->sgotplt->output_offset, | |
13ae64f3 JJ |
2903 | contents + roff + 8); |
2904 | /* Skip R_386_PLT32. */ | |
2905 | rel++; | |
2906 | continue; | |
2907 | } | |
2908 | break; | |
2909 | ||
2910 | case R_386_TLS_LDM: | |
2911 | if (! info->shared) | |
2912 | { | |
2913 | unsigned int val; | |
2914 | ||
2915 | /* LD->LE transition: | |
2916 | Ensure it is: | |
2917 | leal foo(%reg), %eax; call ___tls_get_addr. | |
2918 | We change it into: | |
2919 | movl %gs:0, %eax; nop; leal 0(%esi,1), %esi. */ | |
2920 | BFD_ASSERT (rel->r_offset >= 2); | |
2921 | BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset - 2) | |
2922 | == 0x8d); | |
2923 | val = bfd_get_8 (input_bfd, contents + rel->r_offset - 1); | |
2924 | BFD_ASSERT ((val & 0xf8) == 0x80 && (val & 7) != 4); | |
eea6121a | 2925 | BFD_ASSERT (rel->r_offset + 9 <= input_section->size); |
13ae64f3 JJ |
2926 | BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset + 4) |
2927 | == 0xe8); | |
2928 | BFD_ASSERT (rel + 1 < relend); | |
2929 | BFD_ASSERT (ELF32_R_TYPE (rel[1].r_info) == R_386_PLT32); | |
2930 | memcpy (contents + rel->r_offset - 2, | |
2931 | "\x65\xa1\0\0\0\0\x90\x8d\x74\x26", 11); | |
2932 | /* Skip R_386_PLT32. */ | |
2933 | rel++; | |
2934 | continue; | |
2935 | } | |
2936 | ||
2937 | if (htab->sgot == NULL) | |
2938 | abort (); | |
2939 | ||
2940 | off = htab->tls_ldm_got.offset; | |
2941 | if (off & 1) | |
2942 | off &= ~1; | |
2943 | else | |
2944 | { | |
947216bf AM |
2945 | Elf_Internal_Rela outrel; |
2946 | bfd_byte *loc; | |
13ae64f3 JJ |
2947 | |
2948 | if (htab->srelgot == NULL) | |
2949 | abort (); | |
2950 | ||
2951 | outrel.r_offset = (htab->sgot->output_section->vma | |
2952 | + htab->sgot->output_offset + off); | |
2953 | ||
2954 | bfd_put_32 (output_bfd, 0, | |
2955 | htab->sgot->contents + off); | |
2956 | bfd_put_32 (output_bfd, 0, | |
2957 | htab->sgot->contents + off + 4); | |
2958 | outrel.r_info = ELF32_R_INFO (0, R_386_TLS_DTPMOD32); | |
947216bf AM |
2959 | loc = htab->srelgot->contents; |
2960 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
13ae64f3 JJ |
2961 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
2962 | htab->tls_ldm_got.offset |= 1; | |
2963 | } | |
8c37241b JJ |
2964 | relocation = htab->sgot->output_section->vma |
2965 | + htab->sgot->output_offset + off | |
2966 | - htab->sgotplt->output_section->vma | |
2967 | - htab->sgotplt->output_offset; | |
b34976b6 | 2968 | unresolved_reloc = FALSE; |
13ae64f3 JJ |
2969 | break; |
2970 | ||
2971 | case R_386_TLS_LDO_32: | |
a45bb67d | 2972 | if (info->shared || (input_section->flags & SEC_CODE) == 0) |
13ae64f3 JJ |
2973 | relocation -= dtpoff_base (info); |
2974 | else | |
2975 | /* When converting LDO to LE, we must negate. */ | |
2976 | relocation = -tpoff (info, relocation); | |
2977 | break; | |
2978 | ||
2979 | case R_386_TLS_LE_32: | |
13ae64f3 | 2980 | case R_386_TLS_LE: |
37e55690 JJ |
2981 | if (info->shared) |
2982 | { | |
947216bf | 2983 | Elf_Internal_Rela outrel; |
37e55690 | 2984 | asection *sreloc; |
947216bf | 2985 | bfd_byte *loc; |
37e55690 JJ |
2986 | int indx; |
2987 | ||
2988 | outrel.r_offset = rel->r_offset | |
2989 | + input_section->output_section->vma | |
2990 | + input_section->output_offset; | |
2991 | if (h != NULL && h->dynindx != -1) | |
2992 | indx = h->dynindx; | |
2993 | else | |
2994 | indx = 0; | |
2995 | if (r_type == R_386_TLS_LE_32) | |
2996 | outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF32); | |
2997 | else | |
2998 | outrel.r_info = ELF32_R_INFO (indx, R_386_TLS_TPOFF); | |
2999 | sreloc = elf_section_data (input_section)->sreloc; | |
3000 | if (sreloc == NULL) | |
3001 | abort (); | |
947216bf AM |
3002 | loc = sreloc->contents; |
3003 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rel); | |
37e55690 JJ |
3004 | bfd_elf32_swap_reloc_out (output_bfd, &outrel, loc); |
3005 | if (indx) | |
3006 | continue; | |
3007 | else if (r_type == R_386_TLS_LE_32) | |
3008 | relocation = dtpoff_base (info) - relocation; | |
3009 | else | |
3010 | relocation -= dtpoff_base (info); | |
3011 | } | |
3012 | else if (r_type == R_386_TLS_LE_32) | |
3013 | relocation = tpoff (info, relocation); | |
3014 | else | |
3015 | relocation = -tpoff (info, relocation); | |
13ae64f3 JJ |
3016 | break; |
3017 | ||
252b5132 RH |
3018 | default: |
3019 | break; | |
3020 | } | |
3021 | ||
239e1f3a AM |
3022 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
3023 | because such sections are not SEC_ALLOC and thus ld.so will | |
3024 | not process them. */ | |
8c694914 | 3025 | if (unresolved_reloc |
239e1f3a | 3026 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 3027 | && h->def_dynamic)) |
6a30718d JJ |
3028 | { |
3029 | (*_bfd_error_handler) | |
d003868e AM |
3030 | (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"), |
3031 | input_bfd, | |
3032 | input_section, | |
6a30718d JJ |
3033 | (long) rel->r_offset, |
3034 | h->root.root.string); | |
b34976b6 | 3035 | return FALSE; |
6a30718d | 3036 | } |
83be169b | 3037 | |
252b5132 RH |
3038 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3039 | contents, rel->r_offset, | |
55fd94b0 | 3040 | relocation, 0); |
252b5132 | 3041 | |
cf5c0c5b | 3042 | if (r != bfd_reloc_ok) |
252b5132 | 3043 | { |
cf5c0c5b | 3044 | const char *name; |
ffb2e45b | 3045 | |
cf5c0c5b AM |
3046 | if (h != NULL) |
3047 | name = h->root.root.string; | |
3048 | else | |
3049 | { | |
3050 | name = bfd_elf_string_from_elf_section (input_bfd, | |
3051 | symtab_hdr->sh_link, | |
3052 | sym->st_name); | |
3053 | if (name == NULL) | |
b34976b6 | 3054 | return FALSE; |
cf5c0c5b AM |
3055 | if (*name == '\0') |
3056 | name = bfd_section_name (input_bfd, sec); | |
3057 | } | |
ffb2e45b | 3058 | |
cf5c0c5b AM |
3059 | if (r == bfd_reloc_overflow) |
3060 | { | |
cf5c0c5b | 3061 | if (! ((*info->callbacks->reloc_overflow) |
dfeffb9f L |
3062 | (info, (h ? &h->root : NULL), name, howto->name, |
3063 | (bfd_vma) 0, input_bfd, input_section, | |
3064 | rel->r_offset))) | |
b34976b6 | 3065 | return FALSE; |
cf5c0c5b AM |
3066 | } |
3067 | else | |
3068 | { | |
3069 | (*_bfd_error_handler) | |
d003868e AM |
3070 | (_("%B(%A+0x%lx): reloc against `%s': error %d"), |
3071 | input_bfd, input_section, | |
cf5c0c5b | 3072 | (long) rel->r_offset, name, (int) r); |
b34976b6 | 3073 | return FALSE; |
cf5c0c5b | 3074 | } |
252b5132 RH |
3075 | } |
3076 | } | |
3077 | ||
b34976b6 | 3078 | return TRUE; |
252b5132 RH |
3079 | } |
3080 | ||
3081 | /* Finish up dynamic symbol handling. We set the contents of various | |
3082 | dynamic sections here. */ | |
3083 | ||
b34976b6 | 3084 | static bfd_boolean |
55fd94b0 AM |
3085 | elf_i386_finish_dynamic_symbol (bfd *output_bfd, |
3086 | struct bfd_link_info *info, | |
3087 | struct elf_link_hash_entry *h, | |
3088 | Elf_Internal_Sym *sym) | |
252b5132 | 3089 | { |
6725bdbf | 3090 | struct elf_i386_link_hash_table *htab; |
252b5132 | 3091 | |
6725bdbf | 3092 | htab = elf_i386_hash_table (info); |
252b5132 RH |
3093 | |
3094 | if (h->plt.offset != (bfd_vma) -1) | |
3095 | { | |
252b5132 RH |
3096 | bfd_vma plt_index; |
3097 | bfd_vma got_offset; | |
947216bf AM |
3098 | Elf_Internal_Rela rel; |
3099 | bfd_byte *loc; | |
252b5132 RH |
3100 | |
3101 | /* This symbol has an entry in the procedure linkage table. Set | |
3102 | it up. */ | |
3103 | ||
ffb2e45b AM |
3104 | if (h->dynindx == -1 |
3105 | || htab->splt == NULL | |
3106 | || htab->sgotplt == NULL | |
3107 | || htab->srelplt == NULL) | |
3108 | abort (); | |
252b5132 RH |
3109 | |
3110 | /* Get the index in the procedure linkage table which | |
3111 | corresponds to this symbol. This is the index of this symbol | |
3112 | in all the symbols for which we are making plt entries. The | |
3113 | first entry in the procedure linkage table is reserved. */ | |
3114 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
3115 | ||
3116 | /* Get the offset into the .got table of the entry that | |
3117 | corresponds to this function. Each .got entry is 4 bytes. | |
3118 | The first three are reserved. */ | |
3119 | got_offset = (plt_index + 3) * 4; | |
3120 | ||
3121 | /* Fill in the entry in the procedure linkage table. */ | |
3122 | if (! info->shared) | |
3123 | { | |
6725bdbf | 3124 | memcpy (htab->splt->contents + h->plt.offset, elf_i386_plt_entry, |
252b5132 RH |
3125 | PLT_ENTRY_SIZE); |
3126 | bfd_put_32 (output_bfd, | |
6725bdbf AM |
3127 | (htab->sgotplt->output_section->vma |
3128 | + htab->sgotplt->output_offset | |
252b5132 | 3129 | + got_offset), |
6725bdbf | 3130 | htab->splt->contents + h->plt.offset + 2); |
eac338cf PB |
3131 | |
3132 | if (htab->is_vxworks) | |
3133 | { | |
3134 | int s, k, reloc_index; | |
3135 | ||
3136 | /* Create the R_386_32 relocation referencing the GOT | |
3137 | for this PLT entry. */ | |
3138 | ||
3139 | /* S: Current slot number (zero-based). */ | |
3140 | s = (h->plt.offset - PLT_ENTRY_SIZE) / PLT_ENTRY_SIZE; | |
3141 | /* K: Number of relocations for PLTResolve. */ | |
3142 | if (info->shared) | |
3143 | k = PLTRESOLVE_RELOCS_SHLIB; | |
3144 | else | |
3145 | k = PLTRESOLVE_RELOCS; | |
3146 | /* Skip the PLTresolve relocations, and the relocations for | |
3147 | the other PLT slots. */ | |
3148 | reloc_index = k + s * PLT_NON_JUMP_SLOT_RELOCS; | |
3149 | loc = (htab->srelplt2->contents + reloc_index | |
3150 | * sizeof (Elf32_External_Rel)); | |
3151 | ||
3152 | rel.r_offset = (htab->splt->output_section->vma | |
3153 | + htab->splt->output_offset | |
3154 | + h->plt.offset + 2), | |
3155 | rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32); | |
3156 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
3157 | ||
3158 | /* Create the R_386_32 relocation referencing the beginning of | |
3159 | the PLT for this GOT entry. */ | |
3160 | rel.r_offset = (htab->sgotplt->output_section->vma | |
3161 | + htab->sgotplt->output_offset | |
3162 | + got_offset); | |
3163 | rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32); | |
3164 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
3165 | loc + sizeof (Elf32_External_Rel)); | |
3166 | } | |
252b5132 RH |
3167 | } |
3168 | else | |
3169 | { | |
6725bdbf | 3170 | memcpy (htab->splt->contents + h->plt.offset, elf_i386_pic_plt_entry, |
252b5132 RH |
3171 | PLT_ENTRY_SIZE); |
3172 | bfd_put_32 (output_bfd, got_offset, | |
6725bdbf | 3173 | htab->splt->contents + h->plt.offset + 2); |
252b5132 RH |
3174 | } |
3175 | ||
3176 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rel), | |
6725bdbf | 3177 | htab->splt->contents + h->plt.offset + 7); |
252b5132 | 3178 | bfd_put_32 (output_bfd, - (h->plt.offset + PLT_ENTRY_SIZE), |
6725bdbf | 3179 | htab->splt->contents + h->plt.offset + 12); |
252b5132 RH |
3180 | |
3181 | /* Fill in the entry in the global offset table. */ | |
3182 | bfd_put_32 (output_bfd, | |
6725bdbf AM |
3183 | (htab->splt->output_section->vma |
3184 | + htab->splt->output_offset | |
252b5132 RH |
3185 | + h->plt.offset |
3186 | + 6), | |
6725bdbf | 3187 | htab->sgotplt->contents + got_offset); |
252b5132 RH |
3188 | |
3189 | /* Fill in the entry in the .rel.plt section. */ | |
6725bdbf AM |
3190 | rel.r_offset = (htab->sgotplt->output_section->vma |
3191 | + htab->sgotplt->output_offset | |
252b5132 RH |
3192 | + got_offset); |
3193 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_JUMP_SLOT); | |
947216bf | 3194 | loc = htab->srelplt->contents + plt_index * sizeof (Elf32_External_Rel); |
0ac8d2ca | 3195 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
252b5132 | 3196 | |
f5385ebf | 3197 | if (!h->def_regular) |
252b5132 RH |
3198 | { |
3199 | /* Mark the symbol as undefined, rather than as defined in | |
c6585bbb JJ |
3200 | the .plt section. Leave the value if there were any |
3201 | relocations where pointer equality matters (this is a clue | |
51b64d56 AM |
3202 | for the dynamic linker, to make function pointer |
3203 | comparisons work between an application and shared | |
c6585bbb JJ |
3204 | library), otherwise set it to zero. If a function is only |
3205 | called from a binary, there is no need to slow down | |
3206 | shared libraries because of that. */ | |
252b5132 | 3207 | sym->st_shndx = SHN_UNDEF; |
f5385ebf | 3208 | if (!h->pointer_equality_needed) |
c6585bbb | 3209 | sym->st_value = 0; |
252b5132 RH |
3210 | } |
3211 | } | |
3212 | ||
13ae64f3 JJ |
3213 | if (h->got.offset != (bfd_vma) -1 |
3214 | && elf_i386_hash_entry(h)->tls_type != GOT_TLS_GD | |
37e55690 | 3215 | && (elf_i386_hash_entry(h)->tls_type & GOT_TLS_IE) == 0) |
252b5132 | 3216 | { |
947216bf AM |
3217 | Elf_Internal_Rela rel; |
3218 | bfd_byte *loc; | |
252b5132 RH |
3219 | |
3220 | /* This symbol has an entry in the global offset table. Set it | |
3221 | up. */ | |
3222 | ||
ffb2e45b AM |
3223 | if (htab->sgot == NULL || htab->srelgot == NULL) |
3224 | abort (); | |
252b5132 | 3225 | |
6725bdbf AM |
3226 | rel.r_offset = (htab->sgot->output_section->vma |
3227 | + htab->sgot->output_offset | |
dc810e39 | 3228 | + (h->got.offset & ~(bfd_vma) 1)); |
252b5132 | 3229 | |
dd5724d5 AM |
3230 | /* If this is a static link, or it is a -Bsymbolic link and the |
3231 | symbol is defined locally or was forced to be local because | |
3232 | of a version file, we just want to emit a RELATIVE reloc. | |
252b5132 RH |
3233 | The entry in the global offset table will already have been |
3234 | initialized in the relocate_section function. */ | |
6725bdbf | 3235 | if (info->shared |
586119b3 | 3236 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
dd5724d5 | 3237 | { |
6725bdbf | 3238 | BFD_ASSERT((h->got.offset & 1) != 0); |
dd5724d5 AM |
3239 | rel.r_info = ELF32_R_INFO (0, R_386_RELATIVE); |
3240 | } | |
252b5132 RH |
3241 | else |
3242 | { | |
dd5724d5 | 3243 | BFD_ASSERT((h->got.offset & 1) == 0); |
6725bdbf AM |
3244 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
3245 | htab->sgot->contents + h->got.offset); | |
252b5132 RH |
3246 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_GLOB_DAT); |
3247 | } | |
3248 | ||
947216bf AM |
3249 | loc = htab->srelgot->contents; |
3250 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rel); | |
0ac8d2ca | 3251 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
252b5132 RH |
3252 | } |
3253 | ||
f5385ebf | 3254 | if (h->needs_copy) |
252b5132 | 3255 | { |
947216bf AM |
3256 | Elf_Internal_Rela rel; |
3257 | bfd_byte *loc; | |
252b5132 RH |
3258 | |
3259 | /* This symbol needs a copy reloc. Set it up. */ | |
3260 | ||
ffb2e45b AM |
3261 | if (h->dynindx == -1 |
3262 | || (h->root.type != bfd_link_hash_defined | |
3263 | && h->root.type != bfd_link_hash_defweak) | |
3264 | || htab->srelbss == NULL) | |
3265 | abort (); | |
252b5132 RH |
3266 | |
3267 | rel.r_offset = (h->root.u.def.value | |
3268 | + h->root.u.def.section->output_section->vma | |
3269 | + h->root.u.def.section->output_offset); | |
3270 | rel.r_info = ELF32_R_INFO (h->dynindx, R_386_COPY); | |
947216bf AM |
3271 | loc = htab->srelbss->contents; |
3272 | loc += htab->srelbss->reloc_count++ * sizeof (Elf32_External_Rel); | |
0ac8d2ca | 3273 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
252b5132 RH |
3274 | } |
3275 | ||
eac338cf PB |
3276 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. |
3277 | On VxWorks, the _GLOBAL_OFFSET_TABLE_ symbol is not absolute: it | |
3278 | is relative to the ".got" section. */ | |
252b5132 | 3279 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
eac338cf PB |
3280 | || (strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0 |
3281 | && !htab->is_vxworks)) | |
252b5132 RH |
3282 | sym->st_shndx = SHN_ABS; |
3283 | ||
b34976b6 | 3284 | return TRUE; |
252b5132 RH |
3285 | } |
3286 | ||
38701953 AM |
3287 | /* Used to decide how to sort relocs in an optimal manner for the |
3288 | dynamic linker, before writing them out. */ | |
3289 | ||
3290 | static enum elf_reloc_type_class | |
55fd94b0 | 3291 | elf_i386_reloc_type_class (const Elf_Internal_Rela *rela) |
38701953 | 3292 | { |
55fd94b0 | 3293 | switch (ELF32_R_TYPE (rela->r_info)) |
38701953 AM |
3294 | { |
3295 | case R_386_RELATIVE: | |
3296 | return reloc_class_relative; | |
3297 | case R_386_JUMP_SLOT: | |
3298 | return reloc_class_plt; | |
3299 | case R_386_COPY: | |
3300 | return reloc_class_copy; | |
3301 | default: | |
3302 | return reloc_class_normal; | |
3303 | } | |
3304 | } | |
3305 | ||
252b5132 RH |
3306 | /* Finish up the dynamic sections. */ |
3307 | ||
b34976b6 | 3308 | static bfd_boolean |
55fd94b0 AM |
3309 | elf_i386_finish_dynamic_sections (bfd *output_bfd, |
3310 | struct bfd_link_info *info) | |
252b5132 | 3311 | { |
6725bdbf | 3312 | struct elf_i386_link_hash_table *htab; |
252b5132 | 3313 | bfd *dynobj; |
252b5132 RH |
3314 | asection *sdyn; |
3315 | ||
6725bdbf | 3316 | htab = elf_i386_hash_table (info); |
ebe50bae | 3317 | dynobj = htab->elf.dynobj; |
252b5132 RH |
3318 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
3319 | ||
ebe50bae | 3320 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3321 | { |
252b5132 RH |
3322 | Elf32_External_Dyn *dyncon, *dynconend; |
3323 | ||
ffb2e45b AM |
3324 | if (sdyn == NULL || htab->sgot == NULL) |
3325 | abort (); | |
252b5132 RH |
3326 | |
3327 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 3328 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
252b5132 RH |
3329 | for (; dyncon < dynconend; dyncon++) |
3330 | { | |
3331 | Elf_Internal_Dyn dyn; | |
51b64d56 | 3332 | asection *s; |
252b5132 RH |
3333 | |
3334 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3335 | ||
3336 | switch (dyn.d_tag) | |
3337 | { | |
3338 | default: | |
0ac8d2ca | 3339 | continue; |
252b5132 RH |
3340 | |
3341 | case DT_PLTGOT: | |
8c37241b JJ |
3342 | s = htab->sgotplt; |
3343 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
6725bdbf AM |
3344 | break; |
3345 | ||
252b5132 | 3346 | case DT_JMPREL: |
6348e046 AM |
3347 | s = htab->srelplt; |
3348 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
252b5132 RH |
3349 | break; |
3350 | ||
3351 | case DT_PLTRELSZ: | |
6348e046 | 3352 | s = htab->srelplt; |
eea6121a | 3353 | dyn.d_un.d_val = s->size; |
252b5132 RH |
3354 | break; |
3355 | ||
3356 | case DT_RELSZ: | |
3357 | /* My reading of the SVR4 ABI indicates that the | |
3358 | procedure linkage table relocs (DT_JMPREL) should be | |
3359 | included in the overall relocs (DT_REL). This is | |
3360 | what Solaris does. However, UnixWare can not handle | |
3361 | that case. Therefore, we override the DT_RELSZ entry | |
6348e046 AM |
3362 | here to make it not include the JMPREL relocs. */ |
3363 | s = htab->srelplt; | |
3364 | if (s == NULL) | |
3365 | continue; | |
eea6121a | 3366 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
3367 | break; |
3368 | ||
3369 | case DT_REL: | |
3370 | /* We may not be using the standard ELF linker script. | |
3371 | If .rel.plt is the first .rel section, we adjust | |
3372 | DT_REL to not include it. */ | |
3373 | s = htab->srelplt; | |
3374 | if (s == NULL) | |
3375 | continue; | |
3376 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
3377 | continue; | |
eea6121a | 3378 | dyn.d_un.d_ptr += s->size; |
252b5132 RH |
3379 | break; |
3380 | } | |
0ac8d2ca AM |
3381 | |
3382 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
252b5132 RH |
3383 | } |
3384 | ||
3385 | /* Fill in the first entry in the procedure linkage table. */ | |
eea6121a | 3386 | if (htab->splt && htab->splt->size > 0) |
252b5132 RH |
3387 | { |
3388 | if (info->shared) | |
eac338cf PB |
3389 | { |
3390 | memcpy (htab->splt->contents, elf_i386_pic_plt0_entry, | |
3391 | sizeof (elf_i386_pic_plt0_entry)); | |
3392 | memset (htab->splt->contents + sizeof (elf_i386_pic_plt0_entry), | |
3393 | htab->plt0_pad_byte, | |
3394 | PLT_ENTRY_SIZE - sizeof (elf_i386_pic_plt0_entry)); | |
3395 | } | |
252b5132 RH |
3396 | else |
3397 | { | |
eac338cf PB |
3398 | memcpy (htab->splt->contents, elf_i386_plt0_entry, |
3399 | sizeof(elf_i386_plt0_entry)); | |
3400 | memset (htab->splt->contents + sizeof (elf_i386_plt0_entry), | |
3401 | htab->plt0_pad_byte, | |
3402 | PLT_ENTRY_SIZE - sizeof (elf_i386_plt0_entry)); | |
252b5132 | 3403 | bfd_put_32 (output_bfd, |
6725bdbf AM |
3404 | (htab->sgotplt->output_section->vma |
3405 | + htab->sgotplt->output_offset | |
3406 | + 4), | |
3407 | htab->splt->contents + 2); | |
252b5132 | 3408 | bfd_put_32 (output_bfd, |
6725bdbf AM |
3409 | (htab->sgotplt->output_section->vma |
3410 | + htab->sgotplt->output_offset | |
3411 | + 8), | |
3412 | htab->splt->contents + 8); | |
eac338cf PB |
3413 | |
3414 | if (htab->is_vxworks) | |
3415 | { | |
3416 | Elf_Internal_Rela rel; | |
3417 | struct elf_link_hash_entry *hgot; | |
3418 | ||
3419 | /* The VxWorks GOT is relocated by the dynamic linker. | |
3420 | Therefore, we must emit relocations rather than | |
3421 | simply computing the values now. */ | |
3422 | hgot = elf_link_hash_lookup (elf_hash_table (info), | |
3423 | "_GLOBAL_OFFSET_TABLE_", | |
3424 | FALSE, FALSE, FALSE); | |
3425 | /* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 4. | |
3426 | On IA32 we use REL relocations so the addend goes in | |
3427 | the PLT directly. */ | |
3428 | rel.r_offset = (htab->splt->output_section->vma | |
3429 | + htab->splt->output_offset | |
3430 | + 2); | |
3431 | rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32); | |
3432 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
3433 | htab->srelplt2->contents); | |
3434 | /* Generate a relocation for _GLOBAL_OFFSET_TABLE_ + 8. */ | |
3435 | rel.r_offset = (htab->splt->output_section->vma | |
3436 | + htab->splt->output_offset | |
3437 | + 8); | |
3438 | rel.r_info = ELF32_R_INFO (hgot->indx, R_386_32); | |
3439 | bfd_elf32_swap_reloc_out (output_bfd, &rel, | |
3440 | htab->srelplt2->contents + | |
3441 | sizeof (Elf32_External_Rel)); | |
3442 | } | |
252b5132 RH |
3443 | } |
3444 | ||
3445 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
3446 | really seem like the right value. */ | |
6725bdbf AM |
3447 | elf_section_data (htab->splt->output_section) |
3448 | ->this_hdr.sh_entsize = 4; | |
eac338cf PB |
3449 | |
3450 | /* Correct the .rel.plt.unloaded relocations. */ | |
3451 | if (htab->is_vxworks && !info->shared) | |
3452 | { | |
3453 | int num_plts = (htab->splt->size / PLT_ENTRY_SIZE) - 1; | |
4c9b0de6 | 3454 | unsigned char *p; |
eac338cf PB |
3455 | |
3456 | p = htab->srelplt2->contents; | |
3457 | if (info->shared) | |
3458 | p += PLTRESOLVE_RELOCS_SHLIB * sizeof (Elf32_External_Rel); | |
3459 | else | |
3460 | p += PLTRESOLVE_RELOCS * sizeof (Elf32_External_Rel); | |
3461 | ||
3462 | for (; num_plts; num_plts--) | |
3463 | { | |
3464 | Elf_Internal_Rela rel; | |
3465 | bfd_elf32_swap_reloc_in (output_bfd, p, &rel); | |
3466 | rel.r_info = ELF32_R_INFO (htab->hgot->indx, R_386_32); | |
3467 | bfd_elf32_swap_reloc_out (output_bfd, &rel, p); | |
3468 | p += sizeof (Elf32_External_Rel); | |
3469 | ||
3470 | bfd_elf32_swap_reloc_in (output_bfd, p, &rel); | |
3471 | rel.r_info = ELF32_R_INFO (htab->hplt->indx, R_386_32); | |
3472 | bfd_elf32_swap_reloc_out (output_bfd, &rel, p); | |
3473 | p += sizeof (Elf32_External_Rel); | |
3474 | } | |
3475 | } | |
252b5132 RH |
3476 | } |
3477 | } | |
3478 | ||
12d0ee4a | 3479 | if (htab->sgotplt) |
252b5132 | 3480 | { |
12d0ee4a | 3481 | /* Fill in the first three entries in the global offset table. */ |
eea6121a | 3482 | if (htab->sgotplt->size > 0) |
12d0ee4a AM |
3483 | { |
3484 | bfd_put_32 (output_bfd, | |
55fd94b0 | 3485 | (sdyn == NULL ? 0 |
12d0ee4a AM |
3486 | : sdyn->output_section->vma + sdyn->output_offset), |
3487 | htab->sgotplt->contents); | |
55fd94b0 AM |
3488 | bfd_put_32 (output_bfd, 0, htab->sgotplt->contents + 4); |
3489 | bfd_put_32 (output_bfd, 0, htab->sgotplt->contents + 8); | |
12d0ee4a | 3490 | } |
252b5132 | 3491 | |
12d0ee4a AM |
3492 | elf_section_data (htab->sgotplt->output_section)->this_hdr.sh_entsize = 4; |
3493 | } | |
8c37241b | 3494 | |
eea6121a | 3495 | if (htab->sgot && htab->sgot->size > 0) |
8c37241b JJ |
3496 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; |
3497 | ||
b34976b6 | 3498 | return TRUE; |
252b5132 RH |
3499 | } |
3500 | ||
4c45e5c9 JJ |
3501 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
3502 | or (bfd_vma) -1 if it should not be included. */ | |
3503 | ||
3504 | static bfd_vma | |
3505 | elf_i386_plt_sym_val (bfd_vma i, const asection *plt, | |
3506 | const arelent *rel ATTRIBUTE_UNUSED) | |
3507 | { | |
3508 | return plt->vma + (i + 1) * PLT_ENTRY_SIZE; | |
3509 | } | |
3510 | ||
3511 | ||
252b5132 RH |
3512 | #define TARGET_LITTLE_SYM bfd_elf32_i386_vec |
3513 | #define TARGET_LITTLE_NAME "elf32-i386" | |
3514 | #define ELF_ARCH bfd_arch_i386 | |
3515 | #define ELF_MACHINE_CODE EM_386 | |
3516 | #define ELF_MAXPAGESIZE 0x1000 | |
252b5132 RH |
3517 | |
3518 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 3519 | #define elf_backend_can_refcount 1 |
252b5132 RH |
3520 | #define elf_backend_want_got_plt 1 |
3521 | #define elf_backend_plt_readonly 1 | |
3522 | #define elf_backend_want_plt_sym 0 | |
3523 | #define elf_backend_got_header_size 12 | |
252b5132 | 3524 | |
8c29f035 AM |
3525 | /* Support RELA for objdump of prelink objects. */ |
3526 | #define elf_info_to_howto elf_i386_info_to_howto_rel | |
dd5724d5 AM |
3527 | #define elf_info_to_howto_rel elf_i386_info_to_howto_rel |
3528 | ||
13ae64f3 | 3529 | #define bfd_elf32_mkobject elf_i386_mkobject |
13ae64f3 | 3530 | |
dd5724d5 AM |
3531 | #define bfd_elf32_bfd_is_local_label_name elf_i386_is_local_label_name |
3532 | #define bfd_elf32_bfd_link_hash_table_create elf_i386_link_hash_table_create | |
3533 | #define bfd_elf32_bfd_reloc_type_lookup elf_i386_reloc_type_lookup | |
3534 | ||
3535 | #define elf_backend_adjust_dynamic_symbol elf_i386_adjust_dynamic_symbol | |
3536 | #define elf_backend_check_relocs elf_i386_check_relocs | |
0ac8d2ca | 3537 | #define elf_backend_copy_indirect_symbol elf_i386_copy_indirect_symbol |
6725bdbf | 3538 | #define elf_backend_create_dynamic_sections elf_i386_create_dynamic_sections |
0ac8d2ca | 3539 | #define elf_backend_fake_sections elf_i386_fake_sections |
dd5724d5 AM |
3540 | #define elf_backend_finish_dynamic_sections elf_i386_finish_dynamic_sections |
3541 | #define elf_backend_finish_dynamic_symbol elf_i386_finish_dynamic_symbol | |
3542 | #define elf_backend_gc_mark_hook elf_i386_gc_mark_hook | |
3543 | #define elf_backend_gc_sweep_hook elf_i386_gc_sweep_hook | |
c5fccbec DJ |
3544 | #define elf_backend_grok_prstatus elf_i386_grok_prstatus |
3545 | #define elf_backend_grok_psinfo elf_i386_grok_psinfo | |
db6751f2 | 3546 | #define elf_backend_reloc_type_class elf_i386_reloc_type_class |
0ac8d2ca AM |
3547 | #define elf_backend_relocate_section elf_i386_relocate_section |
3548 | #define elf_backend_size_dynamic_sections elf_i386_size_dynamic_sections | |
4c45e5c9 | 3549 | #define elf_backend_plt_sym_val elf_i386_plt_sym_val |
dd5724d5 | 3550 | |
252b5132 | 3551 | #include "elf32-target.h" |
2bc3c89a AM |
3552 | |
3553 | /* FreeBSD support. */ | |
3554 | ||
3555 | #undef TARGET_LITTLE_SYM | |
3556 | #define TARGET_LITTLE_SYM bfd_elf32_i386_freebsd_vec | |
3557 | #undef TARGET_LITTLE_NAME | |
3558 | #define TARGET_LITTLE_NAME "elf32-i386-freebsd" | |
3559 | ||
3560 | /* The kernel recognizes executables as valid only if they carry a | |
3561 | "FreeBSD" label in the ELF header. So we put this label on all | |
3562 | executables and (for simplicity) also all other object files. */ | |
3563 | ||
2bc3c89a | 3564 | static void |
55fd94b0 AM |
3565 | elf_i386_post_process_headers (bfd *abfd, |
3566 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
2bc3c89a AM |
3567 | { |
3568 | Elf_Internal_Ehdr *i_ehdrp; | |
3569 | ||
3570 | i_ehdrp = elf_elfheader (abfd); | |
3571 | ||
3572 | /* Put an ABI label supported by FreeBSD >= 4.1. */ | |
3573 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; | |
3574 | #ifdef OLD_FREEBSD_ABI_LABEL | |
3575 | /* The ABI label supported by FreeBSD <= 4.0 is quite nonstandard. */ | |
3576 | memcpy (&i_ehdrp->e_ident[EI_ABIVERSION], "FreeBSD", 8); | |
caf47ea6 | 3577 | #endif |
2bc3c89a AM |
3578 | } |
3579 | ||
3580 | #undef elf_backend_post_process_headers | |
571fe01f NC |
3581 | #define elf_backend_post_process_headers elf_i386_post_process_headers |
3582 | #undef elf32_bed | |
3583 | #define elf32_bed elf32_i386_fbsd_bed | |
2bc3c89a AM |
3584 | |
3585 | #include "elf32-target.h" | |
eac338cf PB |
3586 | |
3587 | /* VxWorks support. */ | |
3588 | ||
3589 | #undef TARGET_LITTLE_SYM | |
3590 | #define TARGET_LITTLE_SYM bfd_elf32_i386_vxworks_vec | |
3591 | #undef TARGET_LITTLE_NAME | |
3592 | #define TARGET_LITTLE_NAME "elf32-i386-vxworks" | |
3593 | ||
3594 | ||
3595 | /* Like elf_i386_link_hash_table_create but with tweaks for VxWorks. */ | |
3596 | ||
3597 | static struct bfd_link_hash_table * | |
3598 | elf_i386_vxworks_link_hash_table_create (bfd *abfd) | |
3599 | { | |
3600 | struct bfd_link_hash_table *ret; | |
3601 | struct elf_i386_link_hash_table *htab; | |
3602 | ||
3603 | ret = elf_i386_link_hash_table_create (abfd); | |
3604 | if (ret) | |
3605 | { | |
3606 | htab = (struct elf_i386_link_hash_table *) ret; | |
3607 | htab->is_vxworks = 1; | |
3608 | htab->plt0_pad_byte = 0x90; | |
3609 | } | |
3610 | ||
3611 | return ret; | |
3612 | } | |
3613 | ||
3614 | ||
3615 | /* Tweak magic VxWorks symbols as they are written to the output file. */ | |
3616 | static bfd_boolean | |
3617 | elf_i386_vxworks_link_output_symbol_hook (struct bfd_link_info *info | |
3618 | ATTRIBUTE_UNUSED, | |
3619 | const char *name, | |
3620 | Elf_Internal_Sym *sym, | |
3621 | asection *input_sec ATTRIBUTE_UNUSED, | |
3622 | struct elf_link_hash_entry *h | |
3623 | ATTRIBUTE_UNUSED) | |
3624 | { | |
3625 | /* Ignore the first dummy symbol. */ | |
3626 | if (!name) | |
3627 | return TRUE; | |
3628 | ||
3629 | return elf_vxworks_link_output_symbol_hook (name, sym); | |
3630 | } | |
3631 | ||
3632 | #undef elf_backend_post_process_headers | |
3633 | #undef bfd_elf32_bfd_link_hash_table_create | |
3634 | #define bfd_elf32_bfd_link_hash_table_create \ | |
3635 | elf_i386_vxworks_link_hash_table_create | |
3636 | #undef elf_backend_add_symbol_hook | |
3637 | #define elf_backend_add_symbol_hook \ | |
3638 | elf_vxworks_add_symbol_hook | |
3639 | #undef elf_backend_link_output_symbol_hook | |
3640 | #define elf_backend_link_output_symbol_hook \ | |
3641 | elf_i386_vxworks_link_output_symbol_hook | |
3642 | #undef elf_backend_emit_relocs | |
3643 | #define elf_backend_emit_relocs elf_vxworks_emit_relocs | |
3644 | #undef elf_backend_final_write_processing | |
3645 | #define elf_backend_final_write_processing \ | |
3646 | elf_vxworks_final_write_processing | |
3647 | ||
3648 | /* On VxWorks, we emit relocations against _PROCEDURE_LINKAGE_TABLE_, so | |
3649 | define it. */ | |
3650 | #undef elf_backend_want_plt_sym | |
3651 | #define elf_backend_want_plt_sym 1 | |
3652 | ||
3653 | #undef elf32_bed | |
3654 | #define elf32_bed elf32_i386_vxworks_bed | |
3655 | ||
3656 | #include "elf32-target.h" |