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252b5132 | 1 | /* ELF executable support for BFD. |
7898deda | 2 | Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
45d6a902 | 3 | 2001, 2002, 2003 Free Software Foundation, Inc. |
252b5132 RH |
4 | |
5 | Written by Fred Fish @ Cygnus Support, from information published | |
6 | in "UNIX System V Release 4, Programmers Guide: ANSI C and | |
7 | Programming Support Tools". Sufficient support for gdb. | |
8 | ||
9 | Rewritten by Mark Eichin @ Cygnus Support, from information | |
10 | published in "System V Application Binary Interface", chapters 4 | |
11 | and 5, as well as the various "Processor Supplement" documents | |
12 | derived from it. Added support for assembler and other object file | |
13 | utilities. Further work done by Ken Raeburn (Cygnus Support), Michael | |
14 | Meissner (Open Software Foundation), and Peter Hoogenboom (University | |
15 | of Utah) to finish and extend this. | |
16 | ||
17 | This file is part of BFD, the Binary File Descriptor library. | |
18 | ||
19 | This program is free software; you can redistribute it and/or modify | |
20 | it under the terms of the GNU General Public License as published by | |
21 | the Free Software Foundation; either version 2 of the License, or | |
22 | (at your option) any later version. | |
23 | ||
24 | This program is distributed in the hope that it will be useful, | |
25 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | GNU General Public License for more details. | |
28 | ||
29 | You should have received a copy of the GNU General Public License | |
30 | along with this program; if not, write to the Free Software | |
31 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
32 | ||
33 | /* Problems and other issues to resolve. | |
34 | ||
35 | (1) BFD expects there to be some fixed number of "sections" in | |
36 | the object file. I.E. there is a "section_count" variable in the | |
37 | bfd structure which contains the number of sections. However, ELF | |
38 | supports multiple "views" of a file. In particular, with current | |
39 | implementations, executable files typically have two tables, a | |
40 | program header table and a section header table, both of which | |
41 | partition the executable. | |
42 | ||
43 | In ELF-speak, the "linking view" of the file uses the section header | |
44 | table to access "sections" within the file, and the "execution view" | |
45 | uses the program header table to access "segments" within the file. | |
46 | "Segments" typically may contain all the data from one or more | |
47 | "sections". | |
48 | ||
49 | Note that the section header table is optional in ELF executables, | |
50 | but it is this information that is most useful to gdb. If the | |
51 | section header table is missing, then gdb should probably try | |
52 | to make do with the program header table. (FIXME) | |
53 | ||
54 | (2) The code in this file is compiled twice, once in 32-bit mode and | |
55 | once in 64-bit mode. More of it should be made size-independent | |
56 | and moved into elf.c. | |
57 | ||
58 | (3) ELF section symbols are handled rather sloppily now. This should | |
59 | be cleaned up, and ELF section symbols reconciled with BFD section | |
60 | symbols. | |
61 | ||
62 | (4) We need a published spec for 64-bit ELF. We've got some stuff here | |
63 | that we're using for SPARC V9 64-bit chips, but don't assume that | |
64 | it's cast in stone. | |
65 | */ | |
66 | ||
67 | #include "bfd.h" | |
68 | #include "sysdep.h" | |
210ba1e8 | 69 | #include "libiberty.h" |
252b5132 RH |
70 | #include "bfdlink.h" |
71 | #include "libbfd.h" | |
72 | #include "elf-bfd.h" | |
73 | ||
74 | /* Renaming structures, typedefs, macros and functions to be size-specific. */ | |
75 | #define Elf_External_Ehdr NAME(Elf,External_Ehdr) | |
76 | #define Elf_External_Sym NAME(Elf,External_Sym) | |
77 | #define Elf_External_Shdr NAME(Elf,External_Shdr) | |
78 | #define Elf_External_Phdr NAME(Elf,External_Phdr) | |
79 | #define Elf_External_Rel NAME(Elf,External_Rel) | |
80 | #define Elf_External_Rela NAME(Elf,External_Rela) | |
81 | #define Elf_External_Dyn NAME(Elf,External_Dyn) | |
82 | ||
83 | #define elf_core_file_failing_command NAME(bfd_elf,core_file_failing_command) | |
84 | #define elf_core_file_failing_signal NAME(bfd_elf,core_file_failing_signal) | |
85 | #define elf_core_file_matches_executable_p \ | |
86 | NAME(bfd_elf,core_file_matches_executable_p) | |
87 | #define elf_object_p NAME(bfd_elf,object_p) | |
88 | #define elf_core_file_p NAME(bfd_elf,core_file_p) | |
89 | #define elf_get_symtab_upper_bound NAME(bfd_elf,get_symtab_upper_bound) | |
90 | #define elf_get_dynamic_symtab_upper_bound \ | |
91 | NAME(bfd_elf,get_dynamic_symtab_upper_bound) | |
92 | #define elf_swap_reloc_in NAME(bfd_elf,swap_reloc_in) | |
93 | #define elf_swap_reloca_in NAME(bfd_elf,swap_reloca_in) | |
94 | #define elf_swap_reloc_out NAME(bfd_elf,swap_reloc_out) | |
95 | #define elf_swap_reloca_out NAME(bfd_elf,swap_reloca_out) | |
96 | #define elf_swap_symbol_in NAME(bfd_elf,swap_symbol_in) | |
97 | #define elf_swap_symbol_out NAME(bfd_elf,swap_symbol_out) | |
98 | #define elf_swap_phdr_in NAME(bfd_elf,swap_phdr_in) | |
99 | #define elf_swap_phdr_out NAME(bfd_elf,swap_phdr_out) | |
100 | #define elf_swap_dyn_in NAME(bfd_elf,swap_dyn_in) | |
101 | #define elf_swap_dyn_out NAME(bfd_elf,swap_dyn_out) | |
102 | #define elf_get_reloc_upper_bound NAME(bfd_elf,get_reloc_upper_bound) | |
103 | #define elf_canonicalize_reloc NAME(bfd_elf,canonicalize_reloc) | |
104 | #define elf_slurp_symbol_table NAME(bfd_elf,slurp_symbol_table) | |
105 | #define elf_get_symtab NAME(bfd_elf,get_symtab) | |
106 | #define elf_canonicalize_dynamic_symtab \ | |
107 | NAME(bfd_elf,canonicalize_dynamic_symtab) | |
108 | #define elf_make_empty_symbol NAME(bfd_elf,make_empty_symbol) | |
109 | #define elf_get_symbol_info NAME(bfd_elf,get_symbol_info) | |
110 | #define elf_get_lineno NAME(bfd_elf,get_lineno) | |
111 | #define elf_set_arch_mach NAME(bfd_elf,set_arch_mach) | |
112 | #define elf_find_nearest_line NAME(bfd_elf,find_nearest_line) | |
113 | #define elf_sizeof_headers NAME(bfd_elf,sizeof_headers) | |
114 | #define elf_set_section_contents NAME(bfd_elf,set_section_contents) | |
115 | #define elf_no_info_to_howto NAME(bfd_elf,no_info_to_howto) | |
116 | #define elf_no_info_to_howto_rel NAME(bfd_elf,no_info_to_howto_rel) | |
117 | #define elf_find_section NAME(bfd_elf,find_section) | |
118 | #define elf_bfd_link_add_symbols NAME(bfd_elf,bfd_link_add_symbols) | |
119 | #define elf_add_dynamic_entry NAME(bfd_elf,add_dynamic_entry) | |
120 | #define elf_write_shdrs_and_ehdr NAME(bfd_elf,write_shdrs_and_ehdr) | |
121 | #define elf_write_out_phdrs NAME(bfd_elf,write_out_phdrs) | |
b9f66672 JL |
122 | #define elf_write_relocs NAME(bfd_elf,write_relocs) |
123 | #define elf_slurp_reloc_table NAME(bfd_elf,slurp_reloc_table) | |
73d074b4 DJ |
124 | #define elf_bfd_discard_info NAME(bfd_elf,discard_info) |
125 | #define elf_reloc_symbol_deleted_p NAME(_bfd_elf,reloc_symbol_deleted_p) | |
252b5132 RH |
126 | #define elf_link_record_dynamic_symbol _bfd_elf_link_record_dynamic_symbol |
127 | #define elf_bfd_final_link NAME(bfd_elf,bfd_final_link) | |
252b5132 RH |
128 | #define elf_gc_sections NAME(_bfd_elf,gc_sections) |
129 | #define elf_gc_common_finalize_got_offsets \ | |
130 | NAME(_bfd_elf,gc_common_finalize_got_offsets) | |
131 | #define elf_gc_common_final_link NAME(_bfd_elf,gc_common_final_link) | |
132 | #define elf_gc_record_vtinherit NAME(_bfd_elf,gc_record_vtinherit) | |
133 | #define elf_gc_record_vtentry NAME(_bfd_elf,gc_record_vtentry) | |
30b30c21 RH |
134 | #define elf_link_record_local_dynamic_symbol \ |
135 | NAME(_bfd_elf,link_record_local_dynamic_symbol) | |
252b5132 RH |
136 | |
137 | #if ARCH_SIZE == 64 | |
138 | #define ELF_R_INFO(X,Y) ELF64_R_INFO(X,Y) | |
139 | #define ELF_R_SYM(X) ELF64_R_SYM(X) | |
140 | #define ELF_R_TYPE(X) ELF64_R_TYPE(X) | |
141 | #define ELFCLASS ELFCLASS64 | |
142 | #define FILE_ALIGN 8 | |
143 | #define LOG_FILE_ALIGN 3 | |
144 | #endif | |
145 | #if ARCH_SIZE == 32 | |
146 | #define ELF_R_INFO(X,Y) ELF32_R_INFO(X,Y) | |
147 | #define ELF_R_SYM(X) ELF32_R_SYM(X) | |
148 | #define ELF_R_TYPE(X) ELF32_R_TYPE(X) | |
149 | #define ELFCLASS ELFCLASS32 | |
150 | #define FILE_ALIGN 4 | |
151 | #define LOG_FILE_ALIGN 2 | |
152 | #endif | |
153 | ||
154 | /* Static functions */ | |
155 | ||
156 | static void elf_swap_ehdr_in | |
157 | PARAMS ((bfd *, const Elf_External_Ehdr *, Elf_Internal_Ehdr *)); | |
158 | static void elf_swap_ehdr_out | |
159 | PARAMS ((bfd *, const Elf_Internal_Ehdr *, Elf_External_Ehdr *)); | |
160 | static void elf_swap_shdr_in | |
161 | PARAMS ((bfd *, const Elf_External_Shdr *, Elf_Internal_Shdr *)); | |
162 | static void elf_swap_shdr_out | |
163 | PARAMS ((bfd *, const Elf_Internal_Shdr *, Elf_External_Shdr *)); | |
164 | ||
165 | #define elf_stringtab_init _bfd_elf_stringtab_init | |
166 | ||
167 | #define section_from_elf_index bfd_section_from_elf_index | |
168 | ||
b34976b6 | 169 | static bfd_boolean elf_slurp_reloc_table_from_section |
42fdc509 | 170 | PARAMS ((bfd *, asection *, Elf_Internal_Shdr *, bfd_size_type, |
b34976b6 | 171 | arelent *, asymbol **, bfd_boolean)); |
252b5132 | 172 | |
b34976b6 | 173 | static bfd_boolean elf_file_p PARAMS ((Elf_External_Ehdr *)); |
252b5132 RH |
174 | |
175 | #ifdef DEBUG | |
176 | static void elf_debug_section PARAMS ((int, Elf_Internal_Shdr *)); | |
177 | static void elf_debug_file PARAMS ((Elf_Internal_Ehdr *)); | |
178 | static char *elf_symbol_flags PARAMS ((flagword)); | |
179 | #endif | |
180 | \f | |
181 | /* Structure swapping routines */ | |
182 | ||
183 | /* Should perhaps use put_offset, put_word, etc. For now, the two versions | |
184 | can be handled by explicitly specifying 32 bits or "the long type". */ | |
185 | #if ARCH_SIZE == 64 | |
dc810e39 AM |
186 | #define H_PUT_WORD H_PUT_64 |
187 | #define H_PUT_SIGNED_WORD H_PUT_S64 | |
188 | #define H_GET_WORD H_GET_64 | |
189 | #define H_GET_SIGNED_WORD H_GET_S64 | |
252b5132 RH |
190 | #endif |
191 | #if ARCH_SIZE == 32 | |
dc810e39 AM |
192 | #define H_PUT_WORD H_PUT_32 |
193 | #define H_PUT_SIGNED_WORD H_PUT_S32 | |
194 | #define H_GET_WORD H_GET_32 | |
195 | #define H_GET_SIGNED_WORD H_GET_S32 | |
252b5132 RH |
196 | #endif |
197 | ||
198 | /* Translate an ELF symbol in external format into an ELF symbol in internal | |
3e932841 | 199 | format. */ |
252b5132 RH |
200 | |
201 | void | |
73ff0d56 | 202 | elf_swap_symbol_in (abfd, psrc, pshn, dst) |
252b5132 | 203 | bfd *abfd; |
f8ecb12b AM |
204 | const PTR psrc; |
205 | const PTR pshn; | |
252b5132 RH |
206 | Elf_Internal_Sym *dst; |
207 | { | |
73ff0d56 AM |
208 | const Elf_External_Sym *src = (const Elf_External_Sym *) psrc; |
209 | const Elf_External_Sym_Shndx *shndx = (const Elf_External_Sym_Shndx *) pshn; | |
86dc0f79 RH |
210 | int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma; |
211 | ||
dc810e39 | 212 | dst->st_name = H_GET_32 (abfd, src->st_name); |
86dc0f79 | 213 | if (signed_vma) |
dc810e39 | 214 | dst->st_value = H_GET_SIGNED_WORD (abfd, src->st_value); |
86dc0f79 | 215 | else |
dc810e39 AM |
216 | dst->st_value = H_GET_WORD (abfd, src->st_value); |
217 | dst->st_size = H_GET_WORD (abfd, src->st_size); | |
218 | dst->st_info = H_GET_8 (abfd, src->st_info); | |
219 | dst->st_other = H_GET_8 (abfd, src->st_other); | |
220 | dst->st_shndx = H_GET_16 (abfd, src->st_shndx); | |
9ad5cbcf AM |
221 | if (dst->st_shndx == SHN_XINDEX) |
222 | { | |
223 | if (shndx == NULL) | |
224 | abort (); | |
225 | dst->st_shndx = H_GET_32 (abfd, shndx->est_shndx); | |
226 | } | |
252b5132 RH |
227 | } |
228 | ||
229 | /* Translate an ELF symbol in internal format into an ELF symbol in external | |
3e932841 | 230 | format. */ |
252b5132 RH |
231 | |
232 | void | |
9ad5cbcf | 233 | elf_swap_symbol_out (abfd, src, cdst, shndx) |
252b5132 RH |
234 | bfd *abfd; |
235 | const Elf_Internal_Sym *src; | |
236 | PTR cdst; | |
9ad5cbcf | 237 | PTR shndx; |
252b5132 | 238 | { |
9ad5cbcf | 239 | unsigned int tmp; |
252b5132 | 240 | Elf_External_Sym *dst = (Elf_External_Sym *) cdst; |
dc810e39 AM |
241 | H_PUT_32 (abfd, src->st_name, dst->st_name); |
242 | H_PUT_WORD (abfd, src->st_value, dst->st_value); | |
243 | H_PUT_WORD (abfd, src->st_size, dst->st_size); | |
244 | H_PUT_8 (abfd, src->st_info, dst->st_info); | |
245 | H_PUT_8 (abfd, src->st_other, dst->st_other); | |
9ad5cbcf AM |
246 | tmp = src->st_shndx; |
247 | if (tmp > SHN_HIRESERVE) | |
248 | { | |
249 | if (shndx == NULL) | |
250 | abort (); | |
251 | H_PUT_32 (abfd, tmp, shndx); | |
252 | tmp = SHN_XINDEX; | |
253 | } | |
254 | H_PUT_16 (abfd, tmp, dst->st_shndx); | |
252b5132 RH |
255 | } |
256 | ||
252b5132 | 257 | /* Translate an ELF file header in external format into an ELF file header in |
3e932841 | 258 | internal format. */ |
252b5132 RH |
259 | |
260 | static void | |
261 | elf_swap_ehdr_in (abfd, src, dst) | |
262 | bfd *abfd; | |
263 | const Elf_External_Ehdr *src; | |
264 | Elf_Internal_Ehdr *dst; | |
265 | { | |
448cafa4 | 266 | int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma; |
252b5132 | 267 | memcpy (dst->e_ident, src->e_ident, EI_NIDENT); |
dc810e39 AM |
268 | dst->e_type = H_GET_16 (abfd, src->e_type); |
269 | dst->e_machine = H_GET_16 (abfd, src->e_machine); | |
270 | dst->e_version = H_GET_32 (abfd, src->e_version); | |
448cafa4 | 271 | if (signed_vma) |
dc810e39 | 272 | dst->e_entry = H_GET_SIGNED_WORD (abfd, src->e_entry); |
448cafa4 | 273 | else |
dc810e39 AM |
274 | dst->e_entry = H_GET_WORD (abfd, src->e_entry); |
275 | dst->e_phoff = H_GET_WORD (abfd, src->e_phoff); | |
276 | dst->e_shoff = H_GET_WORD (abfd, src->e_shoff); | |
277 | dst->e_flags = H_GET_32 (abfd, src->e_flags); | |
278 | dst->e_ehsize = H_GET_16 (abfd, src->e_ehsize); | |
279 | dst->e_phentsize = H_GET_16 (abfd, src->e_phentsize); | |
280 | dst->e_phnum = H_GET_16 (abfd, src->e_phnum); | |
281 | dst->e_shentsize = H_GET_16 (abfd, src->e_shentsize); | |
282 | dst->e_shnum = H_GET_16 (abfd, src->e_shnum); | |
283 | dst->e_shstrndx = H_GET_16 (abfd, src->e_shstrndx); | |
252b5132 RH |
284 | } |
285 | ||
286 | /* Translate an ELF file header in internal format into an ELF file header in | |
3e932841 | 287 | external format. */ |
252b5132 RH |
288 | |
289 | static void | |
290 | elf_swap_ehdr_out (abfd, src, dst) | |
291 | bfd *abfd; | |
292 | const Elf_Internal_Ehdr *src; | |
293 | Elf_External_Ehdr *dst; | |
294 | { | |
5732c114 | 295 | unsigned int tmp; |
448cafa4 | 296 | int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma; |
252b5132 | 297 | memcpy (dst->e_ident, src->e_ident, EI_NIDENT); |
3e932841 | 298 | /* note that all elements of dst are *arrays of unsigned char* already... */ |
dc810e39 AM |
299 | H_PUT_16 (abfd, src->e_type, dst->e_type); |
300 | H_PUT_16 (abfd, src->e_machine, dst->e_machine); | |
301 | H_PUT_32 (abfd, src->e_version, dst->e_version); | |
448cafa4 | 302 | if (signed_vma) |
dc810e39 | 303 | H_PUT_SIGNED_WORD (abfd, src->e_entry, dst->e_entry); |
448cafa4 | 304 | else |
dc810e39 AM |
305 | H_PUT_WORD (abfd, src->e_entry, dst->e_entry); |
306 | H_PUT_WORD (abfd, src->e_phoff, dst->e_phoff); | |
307 | H_PUT_WORD (abfd, src->e_shoff, dst->e_shoff); | |
308 | H_PUT_32 (abfd, src->e_flags, dst->e_flags); | |
309 | H_PUT_16 (abfd, src->e_ehsize, dst->e_ehsize); | |
310 | H_PUT_16 (abfd, src->e_phentsize, dst->e_phentsize); | |
311 | H_PUT_16 (abfd, src->e_phnum, dst->e_phnum); | |
312 | H_PUT_16 (abfd, src->e_shentsize, dst->e_shentsize); | |
5732c114 AM |
313 | tmp = src->e_shnum; |
314 | if (tmp >= SHN_LORESERVE) | |
315 | tmp = SHN_UNDEF; | |
316 | H_PUT_16 (abfd, tmp, dst->e_shnum); | |
317 | tmp = src->e_shstrndx; | |
318 | if (tmp >= SHN_LORESERVE) | |
319 | tmp = SHN_XINDEX; | |
320 | H_PUT_16 (abfd, tmp, dst->e_shstrndx); | |
252b5132 RH |
321 | } |
322 | ||
252b5132 | 323 | /* Translate an ELF section header table entry in external format into an |
3e932841 | 324 | ELF section header table entry in internal format. */ |
252b5132 RH |
325 | |
326 | static void | |
327 | elf_swap_shdr_in (abfd, src, dst) | |
328 | bfd *abfd; | |
329 | const Elf_External_Shdr *src; | |
330 | Elf_Internal_Shdr *dst; | |
331 | { | |
86dc0f79 RH |
332 | int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma; |
333 | ||
dc810e39 AM |
334 | dst->sh_name = H_GET_32 (abfd, src->sh_name); |
335 | dst->sh_type = H_GET_32 (abfd, src->sh_type); | |
336 | dst->sh_flags = H_GET_WORD (abfd, src->sh_flags); | |
86dc0f79 | 337 | if (signed_vma) |
dc810e39 | 338 | dst->sh_addr = H_GET_SIGNED_WORD (abfd, src->sh_addr); |
86dc0f79 | 339 | else |
dc810e39 AM |
340 | dst->sh_addr = H_GET_WORD (abfd, src->sh_addr); |
341 | dst->sh_offset = H_GET_WORD (abfd, src->sh_offset); | |
342 | dst->sh_size = H_GET_WORD (abfd, src->sh_size); | |
343 | dst->sh_link = H_GET_32 (abfd, src->sh_link); | |
344 | dst->sh_info = H_GET_32 (abfd, src->sh_info); | |
345 | dst->sh_addralign = H_GET_WORD (abfd, src->sh_addralign); | |
346 | dst->sh_entsize = H_GET_WORD (abfd, src->sh_entsize); | |
252b5132 RH |
347 | dst->bfd_section = NULL; |
348 | dst->contents = NULL; | |
349 | } | |
350 | ||
351 | /* Translate an ELF section header table entry in internal format into an | |
3e932841 | 352 | ELF section header table entry in external format. */ |
252b5132 RH |
353 | |
354 | static void | |
355 | elf_swap_shdr_out (abfd, src, dst) | |
356 | bfd *abfd; | |
357 | const Elf_Internal_Shdr *src; | |
358 | Elf_External_Shdr *dst; | |
359 | { | |
3e932841 | 360 | /* note that all elements of dst are *arrays of unsigned char* already... */ |
dc810e39 AM |
361 | H_PUT_32 (abfd, src->sh_name, dst->sh_name); |
362 | H_PUT_32 (abfd, src->sh_type, dst->sh_type); | |
363 | H_PUT_WORD (abfd, src->sh_flags, dst->sh_flags); | |
364 | H_PUT_WORD (abfd, src->sh_addr, dst->sh_addr); | |
365 | H_PUT_WORD (abfd, src->sh_offset, dst->sh_offset); | |
366 | H_PUT_WORD (abfd, src->sh_size, dst->sh_size); | |
367 | H_PUT_32 (abfd, src->sh_link, dst->sh_link); | |
368 | H_PUT_32 (abfd, src->sh_info, dst->sh_info); | |
369 | H_PUT_WORD (abfd, src->sh_addralign, dst->sh_addralign); | |
370 | H_PUT_WORD (abfd, src->sh_entsize, dst->sh_entsize); | |
252b5132 RH |
371 | } |
372 | ||
252b5132 | 373 | /* Translate an ELF program header table entry in external format into an |
3e932841 | 374 | ELF program header table entry in internal format. */ |
252b5132 RH |
375 | |
376 | void | |
377 | elf_swap_phdr_in (abfd, src, dst) | |
378 | bfd *abfd; | |
379 | const Elf_External_Phdr *src; | |
380 | Elf_Internal_Phdr *dst; | |
381 | { | |
86dc0f79 RH |
382 | int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma; |
383 | ||
dc810e39 AM |
384 | dst->p_type = H_GET_32 (abfd, src->p_type); |
385 | dst->p_flags = H_GET_32 (abfd, src->p_flags); | |
386 | dst->p_offset = H_GET_WORD (abfd, src->p_offset); | |
86dc0f79 RH |
387 | if (signed_vma) |
388 | { | |
dc810e39 AM |
389 | dst->p_vaddr = H_GET_SIGNED_WORD (abfd, src->p_vaddr); |
390 | dst->p_paddr = H_GET_SIGNED_WORD (abfd, src->p_paddr); | |
86dc0f79 RH |
391 | } |
392 | else | |
393 | { | |
dc810e39 AM |
394 | dst->p_vaddr = H_GET_WORD (abfd, src->p_vaddr); |
395 | dst->p_paddr = H_GET_WORD (abfd, src->p_paddr); | |
86dc0f79 | 396 | } |
dc810e39 AM |
397 | dst->p_filesz = H_GET_WORD (abfd, src->p_filesz); |
398 | dst->p_memsz = H_GET_WORD (abfd, src->p_memsz); | |
399 | dst->p_align = H_GET_WORD (abfd, src->p_align); | |
252b5132 RH |
400 | } |
401 | ||
402 | void | |
403 | elf_swap_phdr_out (abfd, src, dst) | |
404 | bfd *abfd; | |
405 | const Elf_Internal_Phdr *src; | |
406 | Elf_External_Phdr *dst; | |
407 | { | |
3e932841 | 408 | /* note that all elements of dst are *arrays of unsigned char* already... */ |
dc810e39 AM |
409 | H_PUT_32 (abfd, src->p_type, dst->p_type); |
410 | H_PUT_WORD (abfd, src->p_offset, dst->p_offset); | |
411 | H_PUT_WORD (abfd, src->p_vaddr, dst->p_vaddr); | |
412 | H_PUT_WORD (abfd, src->p_paddr, dst->p_paddr); | |
413 | H_PUT_WORD (abfd, src->p_filesz, dst->p_filesz); | |
414 | H_PUT_WORD (abfd, src->p_memsz, dst->p_memsz); | |
415 | H_PUT_32 (abfd, src->p_flags, dst->p_flags); | |
416 | H_PUT_WORD (abfd, src->p_align, dst->p_align); | |
252b5132 RH |
417 | } |
418 | ||
3e932841 | 419 | /* Translate an ELF reloc from external format to internal format. */ |
947216bf AM |
420 | void |
421 | elf_swap_reloc_in (abfd, s, dst) | |
252b5132 | 422 | bfd *abfd; |
947216bf AM |
423 | const bfd_byte *s; |
424 | Elf_Internal_Rela *dst; | |
252b5132 | 425 | { |
947216bf | 426 | const Elf_External_Rel *src = (const Elf_External_Rel *) s; |
dc810e39 AM |
427 | dst->r_offset = H_GET_WORD (abfd, src->r_offset); |
428 | dst->r_info = H_GET_WORD (abfd, src->r_info); | |
947216bf | 429 | dst->r_addend = 0; |
252b5132 RH |
430 | } |
431 | ||
947216bf AM |
432 | void |
433 | elf_swap_reloca_in (abfd, s, dst) | |
252b5132 | 434 | bfd *abfd; |
947216bf | 435 | const bfd_byte *s; |
252b5132 RH |
436 | Elf_Internal_Rela *dst; |
437 | { | |
947216bf | 438 | const Elf_External_Rela *src = (const Elf_External_Rela *) s; |
dc810e39 AM |
439 | dst->r_offset = H_GET_WORD (abfd, src->r_offset); |
440 | dst->r_info = H_GET_WORD (abfd, src->r_info); | |
441 | dst->r_addend = H_GET_SIGNED_WORD (abfd, src->r_addend); | |
252b5132 RH |
442 | } |
443 | ||
3e932841 | 444 | /* Translate an ELF reloc from internal format to external format. */ |
947216bf AM |
445 | void |
446 | elf_swap_reloc_out (abfd, src, d) | |
252b5132 | 447 | bfd *abfd; |
947216bf AM |
448 | const Elf_Internal_Rela *src; |
449 | bfd_byte *d; | |
252b5132 | 450 | { |
947216bf | 451 | Elf_External_Rel *dst = (Elf_External_Rel *) d; |
dc810e39 AM |
452 | H_PUT_WORD (abfd, src->r_offset, dst->r_offset); |
453 | H_PUT_WORD (abfd, src->r_info, dst->r_info); | |
252b5132 RH |
454 | } |
455 | ||
947216bf AM |
456 | void |
457 | elf_swap_reloca_out (abfd, src, d) | |
252b5132 RH |
458 | bfd *abfd; |
459 | const Elf_Internal_Rela *src; | |
947216bf | 460 | bfd_byte *d; |
252b5132 | 461 | { |
947216bf | 462 | Elf_External_Rela *dst = (Elf_External_Rela *) d; |
dc810e39 AM |
463 | H_PUT_WORD (abfd, src->r_offset, dst->r_offset); |
464 | H_PUT_WORD (abfd, src->r_info, dst->r_info); | |
465 | H_PUT_SIGNED_WORD (abfd, src->r_addend, dst->r_addend); | |
252b5132 RH |
466 | } |
467 | ||
468 | INLINE void | |
469 | elf_swap_dyn_in (abfd, p, dst) | |
470 | bfd *abfd; | |
471 | const PTR p; | |
472 | Elf_Internal_Dyn *dst; | |
473 | { | |
474 | const Elf_External_Dyn *src = (const Elf_External_Dyn *) p; | |
475 | ||
dc810e39 AM |
476 | dst->d_tag = H_GET_WORD (abfd, src->d_tag); |
477 | dst->d_un.d_val = H_GET_WORD (abfd, src->d_un.d_val); | |
252b5132 RH |
478 | } |
479 | ||
480 | INLINE void | |
c7ac6ff8 | 481 | elf_swap_dyn_out (abfd, src, p) |
252b5132 RH |
482 | bfd *abfd; |
483 | const Elf_Internal_Dyn *src; | |
c7ac6ff8 | 484 | PTR p; |
252b5132 | 485 | { |
c7ac6ff8 MM |
486 | Elf_External_Dyn *dst = (Elf_External_Dyn *) p; |
487 | ||
dc810e39 AM |
488 | H_PUT_WORD (abfd, src->d_tag, dst->d_tag); |
489 | H_PUT_WORD (abfd, src->d_un.d_val, dst->d_un.d_val); | |
252b5132 RH |
490 | } |
491 | \f | |
492 | /* ELF .o/exec file reading */ | |
493 | ||
252b5132 RH |
494 | /* Begin processing a given object. |
495 | ||
496 | First we validate the file by reading in the ELF header and checking | |
497 | the magic number. */ | |
498 | ||
b34976b6 | 499 | static INLINE bfd_boolean |
252b5132 RH |
500 | elf_file_p (x_ehdrp) |
501 | Elf_External_Ehdr *x_ehdrp; | |
502 | { | |
503 | return ((x_ehdrp->e_ident[EI_MAG0] == ELFMAG0) | |
504 | && (x_ehdrp->e_ident[EI_MAG1] == ELFMAG1) | |
505 | && (x_ehdrp->e_ident[EI_MAG2] == ELFMAG2) | |
506 | && (x_ehdrp->e_ident[EI_MAG3] == ELFMAG3)); | |
507 | } | |
508 | ||
509 | /* Check to see if the file associated with ABFD matches the target vector | |
510 | that ABFD points to. | |
511 | ||
512 | Note that we may be called several times with the same ABFD, but different | |
513 | target vectors, most of which will not match. We have to avoid leaving | |
514 | any side effects in ABFD, or any data it points to (like tdata), if the | |
515 | file does not match the target vector. */ | |
516 | ||
517 | const bfd_target * | |
518 | elf_object_p (abfd) | |
519 | bfd *abfd; | |
520 | { | |
521 | Elf_External_Ehdr x_ehdr; /* Elf file header, external form */ | |
522 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |
523 | Elf_External_Shdr x_shdr; /* Section header table entry, external form */ | |
5732c114 | 524 | Elf_Internal_Shdr i_shdr; |
ed591155 | 525 | Elf_Internal_Shdr *i_shdrp; /* Section header table, internal form */ |
252b5132 RH |
526 | unsigned int shindex; |
527 | char *shstrtab; /* Internal copy of section header stringtab */ | |
528 | struct elf_backend_data *ebd; | |
ed591155 | 529 | struct bfd_preserve preserve; |
252b5132 | 530 | asection *s; |
dc810e39 | 531 | bfd_size_type amt; |
252b5132 | 532 | |
e84d6fca | 533 | preserve.marker = NULL; |
a17cc40f | 534 | |
252b5132 RH |
535 | /* Read in the ELF header in external format. */ |
536 | ||
dc810e39 AM |
537 | if (bfd_bread ((PTR) & x_ehdr, (bfd_size_type) sizeof (x_ehdr), abfd) |
538 | != sizeof (x_ehdr)) | |
252b5132 RH |
539 | { |
540 | if (bfd_get_error () != bfd_error_system_call) | |
541 | goto got_wrong_format_error; | |
542 | else | |
543 | goto got_no_match; | |
544 | } | |
545 | ||
546 | /* Now check to see if we have a valid ELF file, and one that BFD can | |
547 | make use of. The magic number must match, the address size ('class') | |
548 | and byte-swapping must match our XVEC entry, and it must have a | |
549 | section header table (FIXME: See comments re sections at top of this | |
3e932841 | 550 | file). */ |
252b5132 | 551 | |
82e51918 AM |
552 | if (! elf_file_p (&x_ehdr) |
553 | || x_ehdr.e_ident[EI_VERSION] != EV_CURRENT | |
554 | || x_ehdr.e_ident[EI_CLASS] != ELFCLASS) | |
252b5132 RH |
555 | goto got_wrong_format_error; |
556 | ||
557 | /* Check that file's byte order matches xvec's */ | |
558 | switch (x_ehdr.e_ident[EI_DATA]) | |
559 | { | |
560 | case ELFDATA2MSB: /* Big-endian */ | |
561 | if (! bfd_header_big_endian (abfd)) | |
562 | goto got_wrong_format_error; | |
563 | break; | |
564 | case ELFDATA2LSB: /* Little-endian */ | |
565 | if (! bfd_header_little_endian (abfd)) | |
566 | goto got_wrong_format_error; | |
567 | break; | |
568 | case ELFDATANONE: /* No data encoding specified */ | |
569 | default: /* Unknown data encoding specified */ | |
570 | goto got_wrong_format_error; | |
571 | } | |
572 | ||
573 | /* Allocate an instance of the elf_obj_tdata structure and hook it up to | |
574 | the tdata pointer in the bfd. */ | |
575 | ||
dc810e39 | 576 | amt = sizeof (struct elf_obj_tdata); |
e84d6fca AM |
577 | preserve.marker = bfd_zalloc (abfd, amt); |
578 | if (preserve.marker == NULL) | |
252b5132 | 579 | goto got_no_match; |
e84d6fca | 580 | if (!bfd_preserve_save (abfd, &preserve)) |
ed591155 AM |
581 | goto got_no_match; |
582 | ||
e84d6fca AM |
583 | elf_tdata (abfd) = preserve.marker; |
584 | ||
252b5132 RH |
585 | /* Now that we know the byte order, swap in the rest of the header */ |
586 | i_ehdrp = elf_elfheader (abfd); | |
587 | elf_swap_ehdr_in (abfd, &x_ehdr, i_ehdrp); | |
588 | #if DEBUG & 1 | |
589 | elf_debug_file (i_ehdrp); | |
590 | #endif | |
591 | ||
592 | /* Reject ET_CORE (header indicates core file, not object file) */ | |
593 | if (i_ehdrp->e_type == ET_CORE) | |
594 | goto got_wrong_format_error; | |
595 | ||
0c35f01a AM |
596 | /* If this is a relocatable file and there is no section header |
597 | table, then we're hosed. */ | |
598 | if (i_ehdrp->e_shoff == 0 && i_ehdrp->e_type == ET_REL) | |
252b5132 RH |
599 | goto got_wrong_format_error; |
600 | ||
601 | /* As a simple sanity check, verify that the what BFD thinks is the | |
602 | size of each section header table entry actually matches the size | |
0c35f01a AM |
603 | recorded in the file, but only if there are any sections. */ |
604 | if (i_ehdrp->e_shentsize != sizeof (x_shdr) && i_ehdrp->e_shnum != 0) | |
252b5132 RH |
605 | goto got_wrong_format_error; |
606 | ||
7ece0d85 JJ |
607 | /* Further sanity check. */ |
608 | if (i_ehdrp->e_shoff == 0 && i_ehdrp->e_shnum != 0) | |
609 | goto got_wrong_format_error; | |
610 | ||
252b5132 RH |
611 | ebd = get_elf_backend_data (abfd); |
612 | ||
613 | /* Check that the ELF e_machine field matches what this particular | |
614 | BFD format expects. */ | |
615 | if (ebd->elf_machine_code != i_ehdrp->e_machine | |
e84d6fca AM |
616 | && (ebd->elf_machine_alt1 == 0 |
617 | || i_ehdrp->e_machine != ebd->elf_machine_alt1) | |
618 | && (ebd->elf_machine_alt2 == 0 | |
619 | || i_ehdrp->e_machine != ebd->elf_machine_alt2)) | |
252b5132 RH |
620 | { |
621 | const bfd_target * const *target_ptr; | |
622 | ||
623 | if (ebd->elf_machine_code != EM_NONE) | |
624 | goto got_wrong_format_error; | |
625 | ||
626 | /* This is the generic ELF target. Let it match any ELF target | |
627 | for which we do not have a specific backend. */ | |
628 | for (target_ptr = bfd_target_vector; *target_ptr != NULL; target_ptr++) | |
629 | { | |
630 | struct elf_backend_data *back; | |
631 | ||
632 | if ((*target_ptr)->flavour != bfd_target_elf_flavour) | |
633 | continue; | |
634 | back = (struct elf_backend_data *) (*target_ptr)->backend_data; | |
635 | if (back->elf_machine_code == i_ehdrp->e_machine | |
636 | || (back->elf_machine_alt1 != 0 | |
637 | && back->elf_machine_alt1 == i_ehdrp->e_machine) | |
638 | || (back->elf_machine_alt2 != 0 | |
639 | && back->elf_machine_alt2 == i_ehdrp->e_machine)) | |
640 | { | |
641 | /* target_ptr is an ELF backend which matches this | |
642 | object file, so reject the generic ELF target. */ | |
643 | goto got_wrong_format_error; | |
644 | } | |
645 | } | |
646 | } | |
647 | ||
648 | if (i_ehdrp->e_type == ET_EXEC) | |
649 | abfd->flags |= EXEC_P; | |
650 | else if (i_ehdrp->e_type == ET_DYN) | |
651 | abfd->flags |= DYNAMIC; | |
652 | ||
653 | if (i_ehdrp->e_phnum > 0) | |
654 | abfd->flags |= D_PAGED; | |
655 | ||
656 | if (! bfd_default_set_arch_mach (abfd, ebd->arch, 0)) | |
657 | { | |
658 | /* It's OK if this fails for the generic target. */ | |
659 | if (ebd->elf_machine_code != EM_NONE) | |
660 | goto got_no_match; | |
661 | } | |
662 | ||
3e932841 | 663 | /* Remember the entry point specified in the ELF file header. */ |
448cafa4 | 664 | bfd_set_start_address (abfd, i_ehdrp->e_entry); |
252b5132 | 665 | |
7ece0d85 JJ |
666 | if (i_ehdrp->e_shoff != 0) |
667 | { | |
668 | /* Seek to the section header table in the file. */ | |
669 | if (bfd_seek (abfd, (file_ptr) i_ehdrp->e_shoff, SEEK_SET) != 0) | |
670 | goto got_no_match; | |
5732c114 | 671 | |
7ece0d85 JJ |
672 | /* Read the first section header at index 0, and convert to internal |
673 | form. */ | |
674 | if (bfd_bread ((PTR) & x_shdr, (bfd_size_type) sizeof x_shdr, abfd) | |
675 | != sizeof (x_shdr)) | |
676 | goto got_no_match; | |
677 | elf_swap_shdr_in (abfd, &x_shdr, &i_shdr); | |
5732c114 | 678 | |
7ece0d85 JJ |
679 | /* If the section count is zero, the actual count is in the first |
680 | section header. */ | |
681 | if (i_ehdrp->e_shnum == SHN_UNDEF) | |
682 | i_ehdrp->e_shnum = i_shdr.sh_size; | |
5732c114 | 683 | |
7ece0d85 JJ |
684 | /* And similarly for the string table index. */ |
685 | if (i_ehdrp->e_shstrndx == SHN_XINDEX) | |
686 | i_ehdrp->e_shstrndx = i_shdr.sh_link; | |
687 | } | |
5732c114 | 688 | |
252b5132 | 689 | /* Allocate space for a copy of the section header table in |
5732c114 | 690 | internal form. */ |
0c35f01a AM |
691 | if (i_ehdrp->e_shnum != 0) |
692 | { | |
5732c114 | 693 | Elf_Internal_Shdr *shdrp; |
9ad5cbcf | 694 | unsigned int num_sec; |
5732c114 | 695 | |
0c35f01a AM |
696 | amt = sizeof (*i_shdrp) * i_ehdrp->e_shnum; |
697 | i_shdrp = (Elf_Internal_Shdr *) bfd_alloc (abfd, amt); | |
5732c114 AM |
698 | if (!i_shdrp) |
699 | goto got_no_match; | |
9ad5cbcf AM |
700 | num_sec = i_ehdrp->e_shnum; |
701 | if (num_sec > SHN_LORESERVE) | |
702 | num_sec += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
703 | elf_numsections (abfd) = num_sec; | |
704 | amt = sizeof (i_shdrp) * num_sec; | |
0c35f01a | 705 | elf_elfsections (abfd) = (Elf_Internal_Shdr **) bfd_alloc (abfd, amt); |
5732c114 | 706 | if (!elf_elfsections (abfd)) |
0c35f01a | 707 | goto got_no_match; |
5732c114 AM |
708 | |
709 | memcpy (i_shdrp, &i_shdr, sizeof (*i_shdrp)); | |
710 | shdrp = i_shdrp; | |
711 | shindex = 0; | |
9ad5cbcf | 712 | if (num_sec > SHN_LORESERVE) |
5732c114 AM |
713 | { |
714 | for ( ; shindex < SHN_LORESERVE; shindex++) | |
715 | elf_elfsections (abfd)[shindex] = shdrp++; | |
716 | for ( ; shindex < SHN_HIRESERVE + 1; shindex++) | |
9ad5cbcf | 717 | elf_elfsections (abfd)[shindex] = i_shdrp; |
5732c114 | 718 | } |
9ad5cbcf | 719 | for ( ; shindex < num_sec; shindex++) |
5732c114 | 720 | elf_elfsections (abfd)[shindex] = shdrp++; |
5732c114 | 721 | |
ed591155 AM |
722 | /* Read in the rest of the section header table and convert it |
723 | to internal form. */ | |
724 | for (shindex = 1; shindex < i_ehdrp->e_shnum; shindex++) | |
725 | { | |
726 | if (bfd_bread ((PTR) & x_shdr, (bfd_size_type) sizeof x_shdr, abfd) | |
727 | != sizeof (x_shdr)) | |
728 | goto got_no_match; | |
729 | elf_swap_shdr_in (abfd, &x_shdr, i_shdrp + shindex); | |
730 | ||
731 | /* If the section is loaded, but not page aligned, clear | |
732 | D_PAGED. */ | |
733 | if (i_shdrp[shindex].sh_size != 0 | |
734 | && (i_shdrp[shindex].sh_flags & SHF_ALLOC) != 0 | |
735 | && i_shdrp[shindex].sh_type != SHT_NOBITS | |
736 | && (((i_shdrp[shindex].sh_addr - i_shdrp[shindex].sh_offset) | |
737 | % ebd->maxpagesize) | |
738 | != 0)) | |
739 | abfd->flags &= ~D_PAGED; | |
740 | } | |
252b5132 | 741 | } |
ed591155 | 742 | |
7ece0d85 | 743 | if (i_ehdrp->e_shstrndx && i_ehdrp->e_shoff) |
252b5132 RH |
744 | { |
745 | if (! bfd_section_from_shdr (abfd, i_ehdrp->e_shstrndx)) | |
746 | goto got_no_match; | |
747 | } | |
748 | ||
749 | /* Read in the program headers. */ | |
750 | if (i_ehdrp->e_phnum == 0) | |
751 | elf_tdata (abfd)->phdr = NULL; | |
752 | else | |
753 | { | |
754 | Elf_Internal_Phdr *i_phdr; | |
755 | unsigned int i; | |
756 | ||
dc810e39 AM |
757 | amt = i_ehdrp->e_phnum * sizeof (Elf_Internal_Phdr); |
758 | elf_tdata (abfd)->phdr = (Elf_Internal_Phdr *) bfd_alloc (abfd, amt); | |
252b5132 RH |
759 | if (elf_tdata (abfd)->phdr == NULL) |
760 | goto got_no_match; | |
dc810e39 | 761 | if (bfd_seek (abfd, (file_ptr) i_ehdrp->e_phoff, SEEK_SET) != 0) |
252b5132 RH |
762 | goto got_no_match; |
763 | i_phdr = elf_tdata (abfd)->phdr; | |
764 | for (i = 0; i < i_ehdrp->e_phnum; i++, i_phdr++) | |
765 | { | |
766 | Elf_External_Phdr x_phdr; | |
767 | ||
dc810e39 | 768 | if (bfd_bread ((PTR) &x_phdr, (bfd_size_type) sizeof x_phdr, abfd) |
252b5132 RH |
769 | != sizeof x_phdr) |
770 | goto got_no_match; | |
771 | elf_swap_phdr_in (abfd, &x_phdr, i_phdr); | |
772 | } | |
773 | } | |
774 | ||
775 | /* Read in the string table containing the names of the sections. We | |
3e932841 | 776 | will need the base pointer to this table later. */ |
252b5132 RH |
777 | /* We read this inline now, so that we don't have to go through |
778 | bfd_section_from_shdr with it (since this particular strtab is | |
779 | used to find all of the ELF section names.) */ | |
780 | ||
7ece0d85 | 781 | if (i_ehdrp->e_shstrndx != 0 && i_ehdrp->e_shoff) |
252b5132 | 782 | { |
9ad5cbcf AM |
783 | unsigned int num_sec; |
784 | ||
0c35f01a AM |
785 | shstrtab = bfd_elf_get_str_section (abfd, i_ehdrp->e_shstrndx); |
786 | if (!shstrtab) | |
252b5132 | 787 | goto got_no_match; |
0c35f01a AM |
788 | |
789 | /* Once all of the section headers have been read and converted, we | |
790 | can start processing them. Note that the first section header is | |
791 | a dummy placeholder entry, so we ignore it. */ | |
9ad5cbcf AM |
792 | num_sec = elf_numsections (abfd); |
793 | for (shindex = 1; shindex < num_sec; shindex++) | |
0c35f01a AM |
794 | { |
795 | if (! bfd_section_from_shdr (abfd, shindex)) | |
796 | goto got_no_match; | |
9ad5cbcf AM |
797 | if (shindex == SHN_LORESERVE - 1) |
798 | shindex += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
0c35f01a | 799 | } |
252b5132 RH |
800 | } |
801 | ||
802 | /* Let the backend double check the format and override global | |
803 | information. */ | |
804 | if (ebd->elf_backend_object_p) | |
805 | { | |
82e51918 | 806 | if (! (*ebd->elf_backend_object_p) (abfd)) |
252b5132 RH |
807 | goto got_wrong_format_error; |
808 | } | |
809 | ||
810 | /* If we have created any reloc sections that are associated with | |
811 | debugging sections, mark the reloc sections as debugging as well. */ | |
812 | for (s = abfd->sections; s != NULL; s = s->next) | |
813 | { | |
814 | if ((elf_section_data (s)->this_hdr.sh_type == SHT_REL | |
815 | || elf_section_data (s)->this_hdr.sh_type == SHT_RELA) | |
816 | && elf_section_data (s)->this_hdr.sh_info > 0) | |
817 | { | |
818 | unsigned long targ_index; | |
819 | asection *targ_sec; | |
820 | ||
821 | targ_index = elf_section_data (s)->this_hdr.sh_info; | |
822 | targ_sec = bfd_section_from_elf_index (abfd, targ_index); | |
823 | if (targ_sec != NULL | |
824 | && (targ_sec->flags & SEC_DEBUGGING) != 0) | |
825 | s->flags |= SEC_DEBUGGING; | |
826 | } | |
827 | } | |
828 | ||
e84d6fca AM |
829 | bfd_preserve_finish (abfd, &preserve); |
830 | return abfd->xvec; | |
252b5132 RH |
831 | |
832 | got_wrong_format_error: | |
a77a9fef HPN |
833 | /* There is way too much undoing of half-known state here. The caller, |
834 | bfd_check_format_matches, really shouldn't iterate on live bfd's to | |
835 | check match/no-match like it does. We have to rely on that a call to | |
836 | bfd_default_set_arch_mach with the previously known mach, undoes what | |
837 | was done by the first bfd_default_set_arch_mach (with mach 0) here. | |
838 | For this to work, only elf-data and the mach may be changed by the | |
839 | target-specific elf_backend_object_p function. Note that saving the | |
840 | whole bfd here and restoring it would be even worse; the first thing | |
841 | you notice is that the cached bfd file position gets out of sync. */ | |
252b5132 | 842 | bfd_set_error (bfd_error_wrong_format); |
ed591155 | 843 | |
252b5132 | 844 | got_no_match: |
e84d6fca AM |
845 | if (preserve.marker != NULL) |
846 | bfd_preserve_restore (abfd, &preserve); | |
ed591155 | 847 | return NULL; |
252b5132 RH |
848 | } |
849 | \f | |
850 | /* ELF .o/exec file writing */ | |
851 | ||
852 | /* Write out the relocs. */ | |
853 | ||
b9f66672 JL |
854 | void |
855 | elf_write_relocs (abfd, sec, data) | |
252b5132 RH |
856 | bfd *abfd; |
857 | asection *sec; | |
858 | PTR data; | |
859 | { | |
b34976b6 | 860 | bfd_boolean *failedp = (bfd_boolean *) data; |
252b5132 | 861 | Elf_Internal_Shdr *rela_hdr; |
947216bf AM |
862 | bfd_vma addr_offset; |
863 | void (*swap_out) PARAMS ((bfd *, const Elf_Internal_Rela *, bfd_byte *)); | |
864 | size_t extsize; | |
865 | bfd_byte *dst_rela; | |
252b5132 | 866 | unsigned int idx; |
947216bf AM |
867 | asymbol *last_sym; |
868 | int last_sym_idx; | |
252b5132 RH |
869 | |
870 | /* If we have already failed, don't do anything. */ | |
871 | if (*failedp) | |
872 | return; | |
873 | ||
874 | if ((sec->flags & SEC_RELOC) == 0) | |
875 | return; | |
876 | ||
877 | /* The linker backend writes the relocs out itself, and sets the | |
878 | reloc_count field to zero to inhibit writing them here. Also, | |
879 | sometimes the SEC_RELOC flag gets set even when there aren't any | |
880 | relocs. */ | |
881 | if (sec->reloc_count == 0) | |
882 | return; | |
883 | ||
884 | rela_hdr = &elf_section_data (sec)->rel_hdr; | |
885 | ||
886 | rela_hdr->sh_size = rela_hdr->sh_entsize * sec->reloc_count; | |
887 | rela_hdr->contents = (PTR) bfd_alloc (abfd, rela_hdr->sh_size); | |
888 | if (rela_hdr->contents == NULL) | |
889 | { | |
b34976b6 | 890 | *failedp = TRUE; |
252b5132 RH |
891 | return; |
892 | } | |
893 | ||
bf572ba0 MM |
894 | /* Figure out whether the relocations are RELA or REL relocations. */ |
895 | if (rela_hdr->sh_type == SHT_RELA) | |
947216bf AM |
896 | { |
897 | swap_out = elf_swap_reloca_out; | |
898 | extsize = sizeof (Elf_External_Rela); | |
899 | } | |
bf572ba0 | 900 | else if (rela_hdr->sh_type == SHT_REL) |
947216bf AM |
901 | { |
902 | swap_out = elf_swap_reloc_out; | |
903 | extsize = sizeof (Elf_External_Rel); | |
904 | } | |
bf572ba0 MM |
905 | else |
906 | /* Every relocation section should be either an SHT_RELA or an | |
907 | SHT_REL section. */ | |
908 | abort (); | |
909 | ||
947216bf AM |
910 | /* The address of an ELF reloc is section relative for an object |
911 | file, and absolute for an executable file or shared library. | |
912 | The address of a BFD reloc is always section relative. */ | |
913 | addr_offset = 0; | |
914 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
915 | addr_offset = sec->vma; | |
916 | ||
3e932841 | 917 | /* orelocation has the data, reloc_count has the count... */ |
947216bf AM |
918 | last_sym = 0; |
919 | last_sym_idx = 0; | |
920 | dst_rela = rela_hdr->contents; | |
252b5132 | 921 | |
947216bf AM |
922 | for (idx = 0; idx < sec->reloc_count; idx++, dst_rela += extsize) |
923 | { | |
924 | Elf_Internal_Rela src_rela; | |
925 | arelent *ptr; | |
926 | asymbol *sym; | |
927 | int n; | |
928 | ||
929 | ptr = sec->orelocation[idx]; | |
930 | sym = *ptr->sym_ptr_ptr; | |
931 | if (sym == last_sym) | |
932 | n = last_sym_idx; | |
933 | else if (bfd_is_abs_section (sym->section) && sym->value == 0) | |
934 | n = STN_UNDEF; | |
935 | else | |
252b5132 | 936 | { |
947216bf AM |
937 | last_sym = sym; |
938 | n = _bfd_elf_symbol_from_bfd_symbol (abfd, &sym); | |
939 | if (n < 0) | |
252b5132 | 940 | { |
b34976b6 | 941 | *failedp = TRUE; |
252b5132 RH |
942 | return; |
943 | } | |
947216bf | 944 | last_sym_idx = n; |
252b5132 | 945 | } |
252b5132 | 946 | |
947216bf AM |
947 | if ((*ptr->sym_ptr_ptr)->the_bfd != NULL |
948 | && (*ptr->sym_ptr_ptr)->the_bfd->xvec != abfd->xvec | |
949 | && ! _bfd_elf_validate_reloc (abfd, ptr)) | |
252b5132 | 950 | { |
b34976b6 | 951 | *failedp = TRUE; |
947216bf | 952 | return; |
252b5132 | 953 | } |
947216bf AM |
954 | |
955 | src_rela.r_offset = ptr->address + addr_offset; | |
956 | src_rela.r_info = ELF_R_INFO (n, ptr->howto->type); | |
957 | src_rela.r_addend = ptr->addend; | |
958 | (*swap_out) (abfd, &src_rela, dst_rela); | |
252b5132 RH |
959 | } |
960 | } | |
961 | ||
962 | /* Write out the program headers. */ | |
963 | ||
964 | int | |
965 | elf_write_out_phdrs (abfd, phdr, count) | |
966 | bfd *abfd; | |
967 | const Elf_Internal_Phdr *phdr; | |
dc810e39 | 968 | unsigned int count; |
252b5132 RH |
969 | { |
970 | while (count--) | |
971 | { | |
972 | Elf_External_Phdr extphdr; | |
973 | elf_swap_phdr_out (abfd, phdr, &extphdr); | |
dc810e39 AM |
974 | if (bfd_bwrite (&extphdr, (bfd_size_type) sizeof (Elf_External_Phdr), |
975 | abfd) != sizeof (Elf_External_Phdr)) | |
252b5132 RH |
976 | return -1; |
977 | phdr++; | |
978 | } | |
979 | return 0; | |
980 | } | |
981 | ||
982 | /* Write out the section headers and the ELF file header. */ | |
983 | ||
b34976b6 | 984 | bfd_boolean |
252b5132 RH |
985 | elf_write_shdrs_and_ehdr (abfd) |
986 | bfd *abfd; | |
987 | { | |
988 | Elf_External_Ehdr x_ehdr; /* Elf file header, external form */ | |
989 | Elf_Internal_Ehdr *i_ehdrp; /* Elf file header, internal form */ | |
990 | Elf_External_Shdr *x_shdrp; /* Section header table, external form */ | |
991 | Elf_Internal_Shdr **i_shdrp; /* Section header table, internal form */ | |
992 | unsigned int count; | |
dc810e39 | 993 | bfd_size_type amt; |
252b5132 RH |
994 | |
995 | i_ehdrp = elf_elfheader (abfd); | |
996 | i_shdrp = elf_elfsections (abfd); | |
997 | ||
3e932841 | 998 | /* swap the header before spitting it out... */ |
252b5132 RH |
999 | |
1000 | #if DEBUG & 1 | |
1001 | elf_debug_file (i_ehdrp); | |
1002 | #endif | |
1003 | elf_swap_ehdr_out (abfd, i_ehdrp, &x_ehdr); | |
dc810e39 | 1004 | amt = sizeof (x_ehdr); |
252b5132 | 1005 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
dc810e39 | 1006 | || bfd_bwrite ((PTR) & x_ehdr, amt, abfd) != amt) |
b34976b6 | 1007 | return FALSE; |
252b5132 | 1008 | |
5732c114 AM |
1009 | /* Some fields in the first section header handle overflow of ehdr |
1010 | fields. */ | |
1011 | if (i_ehdrp->e_shnum >= SHN_LORESERVE) | |
1012 | i_shdrp[0]->sh_size = i_ehdrp->e_shnum; | |
1013 | if (i_ehdrp->e_shstrndx >= SHN_LORESERVE) | |
1014 | i_shdrp[0]->sh_link = i_ehdrp->e_shstrndx; | |
1015 | ||
3e932841 | 1016 | /* at this point we've concocted all the ELF sections... */ |
5732c114 AM |
1017 | amt = i_ehdrp->e_shnum; |
1018 | amt *= sizeof (*x_shdrp); | |
dc810e39 | 1019 | x_shdrp = (Elf_External_Shdr *) bfd_alloc (abfd, amt); |
252b5132 | 1020 | if (!x_shdrp) |
b34976b6 | 1021 | return FALSE; |
252b5132 | 1022 | |
5732c114 | 1023 | for (count = 0; count < i_ehdrp->e_shnum; i_shdrp++, count++) |
252b5132 RH |
1024 | { |
1025 | #if DEBUG & 2 | |
5732c114 | 1026 | elf_debug_section (count, *i_shdrp); |
252b5132 | 1027 | #endif |
5732c114 | 1028 | elf_swap_shdr_out (abfd, *i_shdrp, x_shdrp + count); |
b34976b6 | 1029 | |
5732c114 AM |
1030 | if (count == SHN_LORESERVE - 1) |
1031 | i_shdrp += SHN_HIRESERVE + 1 - SHN_LORESERVE; | |
252b5132 RH |
1032 | } |
1033 | if (bfd_seek (abfd, (file_ptr) i_ehdrp->e_shoff, SEEK_SET) != 0 | |
dc810e39 | 1034 | || bfd_bwrite ((PTR) x_shdrp, amt, abfd) != amt) |
b34976b6 | 1035 | return FALSE; |
252b5132 | 1036 | |
3e932841 | 1037 | /* need to dump the string table too... */ |
252b5132 | 1038 | |
b34976b6 | 1039 | return TRUE; |
252b5132 RH |
1040 | } |
1041 | ||
1042 | long | |
1043 | elf_slurp_symbol_table (abfd, symptrs, dynamic) | |
1044 | bfd *abfd; | |
1045 | asymbol **symptrs; /* Buffer for generated bfd symbols */ | |
b34976b6 | 1046 | bfd_boolean dynamic; |
252b5132 RH |
1047 | { |
1048 | Elf_Internal_Shdr *hdr; | |
1049 | Elf_Internal_Shdr *verhdr; | |
1050 | unsigned long symcount; /* Number of external ELF symbols */ | |
1051 | elf_symbol_type *sym; /* Pointer to current bfd symbol */ | |
1052 | elf_symbol_type *symbase; /* Buffer for generated bfd symbols */ | |
6cdc0ccc AM |
1053 | Elf_Internal_Sym *isym; |
1054 | Elf_Internal_Sym *isymend; | |
1055 | Elf_Internal_Sym *isymbuf = NULL; | |
1056 | Elf_External_Versym *xver; | |
1057 | Elf_External_Versym *xverbuf = NULL; | |
1058 | struct elf_backend_data *ebd; | |
dc810e39 | 1059 | bfd_size_type amt; |
252b5132 RH |
1060 | |
1061 | /* Read each raw ELF symbol, converting from external ELF form to | |
1062 | internal ELF form, and then using the information to create a | |
1063 | canonical bfd symbol table entry. | |
1064 | ||
1065 | Note that we allocate the initial bfd canonical symbol buffer | |
1066 | based on a one-to-one mapping of the ELF symbols to canonical | |
1067 | symbols. We actually use all the ELF symbols, so there will be no | |
1068 | space left over at the end. When we have all the symbols, we | |
3e932841 | 1069 | build the caller's pointer vector. */ |
252b5132 RH |
1070 | |
1071 | if (! dynamic) | |
1072 | { | |
1073 | hdr = &elf_tdata (abfd)->symtab_hdr; | |
1074 | verhdr = NULL; | |
1075 | } | |
1076 | else | |
1077 | { | |
1078 | hdr = &elf_tdata (abfd)->dynsymtab_hdr; | |
1079 | if (elf_dynversym (abfd) == 0) | |
1080 | verhdr = NULL; | |
1081 | else | |
1082 | verhdr = &elf_tdata (abfd)->dynversym_hdr; | |
1083 | if ((elf_tdata (abfd)->dynverdef_section != 0 | |
1084 | && elf_tdata (abfd)->verdef == NULL) | |
1085 | || (elf_tdata (abfd)->dynverref_section != 0 | |
1086 | && elf_tdata (abfd)->verref == NULL)) | |
1087 | { | |
1088 | if (! _bfd_elf_slurp_version_tables (abfd)) | |
1089 | return -1; | |
1090 | } | |
1091 | } | |
1092 | ||
6cdc0ccc | 1093 | ebd = get_elf_backend_data (abfd); |
252b5132 | 1094 | symcount = hdr->sh_size / sizeof (Elf_External_Sym); |
252b5132 RH |
1095 | if (symcount == 0) |
1096 | sym = symbase = NULL; | |
1097 | else | |
1098 | { | |
6cdc0ccc AM |
1099 | isymbuf = bfd_elf_get_elf_syms (abfd, hdr, symcount, 0, |
1100 | NULL, NULL, NULL); | |
1101 | if (isymbuf == NULL) | |
1102 | return -1; | |
252b5132 | 1103 | |
dc810e39 AM |
1104 | amt = symcount; |
1105 | amt *= sizeof (elf_symbol_type); | |
1106 | symbase = (elf_symbol_type *) bfd_zalloc (abfd, amt); | |
252b5132 | 1107 | if (symbase == (elf_symbol_type *) NULL) |
9ad5cbcf | 1108 | goto error_return; |
252b5132 RH |
1109 | |
1110 | /* Read the raw ELF version symbol information. */ | |
252b5132 RH |
1111 | if (verhdr != NULL |
1112 | && verhdr->sh_size / sizeof (Elf_External_Versym) != symcount) | |
1113 | { | |
1114 | (*_bfd_error_handler) | |
1115 | (_("%s: version count (%ld) does not match symbol count (%ld)"), | |
1116 | abfd->filename, | |
1117 | (long) (verhdr->sh_size / sizeof (Elf_External_Versym)), | |
1118 | symcount); | |
1119 | ||
1120 | /* Slurp in the symbols without the version information, | |
1121 | since that is more helpful than just quitting. */ | |
1122 | verhdr = NULL; | |
1123 | } | |
1124 | ||
1125 | if (verhdr != NULL) | |
1126 | { | |
1127 | if (bfd_seek (abfd, verhdr->sh_offset, SEEK_SET) != 0) | |
1128 | goto error_return; | |
1129 | ||
6cdc0ccc AM |
1130 | xverbuf = (Elf_External_Versym *) bfd_malloc (verhdr->sh_size); |
1131 | if (xverbuf == NULL && verhdr->sh_size != 0) | |
252b5132 RH |
1132 | goto error_return; |
1133 | ||
6cdc0ccc | 1134 | if (bfd_bread ((PTR) xverbuf, verhdr->sh_size, abfd) |
252b5132 RH |
1135 | != verhdr->sh_size) |
1136 | goto error_return; | |
1137 | } | |
1138 | ||
1139 | /* Skip first symbol, which is a null dummy. */ | |
6cdc0ccc AM |
1140 | xver = xverbuf; |
1141 | if (xver != NULL) | |
1142 | ++xver; | |
1143 | isymend = isymbuf + symcount; | |
1144 | for (isym = isymbuf + 1, sym = symbase; isym < isymend; isym++, sym++) | |
252b5132 | 1145 | { |
6cdc0ccc | 1146 | memcpy (&sym->internal_elf_sym, isym, sizeof (Elf_Internal_Sym)); |
252b5132 RH |
1147 | sym->symbol.the_bfd = abfd; |
1148 | ||
1149 | sym->symbol.name = bfd_elf_string_from_elf_section (abfd, | |
1150 | hdr->sh_link, | |
6cdc0ccc | 1151 | isym->st_name); |
252b5132 | 1152 | |
6cdc0ccc | 1153 | sym->symbol.value = isym->st_value; |
252b5132 | 1154 | |
6cdc0ccc | 1155 | if (isym->st_shndx == SHN_UNDEF) |
9ad5cbcf AM |
1156 | { |
1157 | sym->symbol.section = bfd_und_section_ptr; | |
1158 | } | |
6cdc0ccc AM |
1159 | else if (isym->st_shndx < SHN_LORESERVE |
1160 | || isym->st_shndx > SHN_HIRESERVE) | |
252b5132 RH |
1161 | { |
1162 | sym->symbol.section = section_from_elf_index (abfd, | |
6cdc0ccc | 1163 | isym->st_shndx); |
252b5132 RH |
1164 | if (sym->symbol.section == NULL) |
1165 | { | |
1166 | /* This symbol is in a section for which we did not | |
1167 | create a BFD section. Just use bfd_abs_section, | |
1168 | although it is wrong. FIXME. */ | |
1169 | sym->symbol.section = bfd_abs_section_ptr; | |
1170 | } | |
1171 | } | |
6cdc0ccc | 1172 | else if (isym->st_shndx == SHN_ABS) |
252b5132 RH |
1173 | { |
1174 | sym->symbol.section = bfd_abs_section_ptr; | |
1175 | } | |
6cdc0ccc | 1176 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
1177 | { |
1178 | sym->symbol.section = bfd_com_section_ptr; | |
1179 | /* Elf puts the alignment into the `value' field, and | |
1180 | the size into the `size' field. BFD wants to see the | |
1181 | size in the value field, and doesn't care (at the | |
1182 | moment) about the alignment. */ | |
6cdc0ccc | 1183 | sym->symbol.value = isym->st_size; |
252b5132 | 1184 | } |
252b5132 RH |
1185 | else |
1186 | sym->symbol.section = bfd_abs_section_ptr; | |
1187 | ||
1049f94e | 1188 | /* If this is a relocatable file, then the symbol value is |
252b5132 RH |
1189 | already section relative. */ |
1190 | if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0) | |
1191 | sym->symbol.value -= sym->symbol.section->vma; | |
1192 | ||
6cdc0ccc | 1193 | switch (ELF_ST_BIND (isym->st_info)) |
252b5132 RH |
1194 | { |
1195 | case STB_LOCAL: | |
1196 | sym->symbol.flags |= BSF_LOCAL; | |
1197 | break; | |
1198 | case STB_GLOBAL: | |
6cdc0ccc | 1199 | if (isym->st_shndx != SHN_UNDEF && isym->st_shndx != SHN_COMMON) |
252b5132 RH |
1200 | sym->symbol.flags |= BSF_GLOBAL; |
1201 | break; | |
1202 | case STB_WEAK: | |
1203 | sym->symbol.flags |= BSF_WEAK; | |
1204 | break; | |
1205 | } | |
1206 | ||
6cdc0ccc | 1207 | switch (ELF_ST_TYPE (isym->st_info)) |
252b5132 RH |
1208 | { |
1209 | case STT_SECTION: | |
1210 | sym->symbol.flags |= BSF_SECTION_SYM | BSF_DEBUGGING; | |
1211 | break; | |
1212 | case STT_FILE: | |
1213 | sym->symbol.flags |= BSF_FILE | BSF_DEBUGGING; | |
1214 | break; | |
1215 | case STT_FUNC: | |
1216 | sym->symbol.flags |= BSF_FUNCTION; | |
1217 | break; | |
1218 | case STT_OBJECT: | |
1219 | sym->symbol.flags |= BSF_OBJECT; | |
1220 | break; | |
1221 | } | |
1222 | ||
1223 | if (dynamic) | |
1224 | sym->symbol.flags |= BSF_DYNAMIC; | |
1225 | ||
6cdc0ccc | 1226 | if (xver != NULL) |
252b5132 RH |
1227 | { |
1228 | Elf_Internal_Versym iversym; | |
1229 | ||
6cdc0ccc | 1230 | _bfd_elf_swap_versym_in (abfd, xver, &iversym); |
252b5132 | 1231 | sym->version = iversym.vs_vers; |
6cdc0ccc | 1232 | xver++; |
252b5132 RH |
1233 | } |
1234 | ||
1235 | /* Do some backend-specific processing on this symbol. */ | |
6cdc0ccc AM |
1236 | if (ebd->elf_backend_symbol_processing) |
1237 | (*ebd->elf_backend_symbol_processing) (abfd, &sym->symbol); | |
252b5132 RH |
1238 | } |
1239 | } | |
1240 | ||
1241 | /* Do some backend-specific processing on this symbol table. */ | |
6cdc0ccc AM |
1242 | if (ebd->elf_backend_symbol_table_processing) |
1243 | (*ebd->elf_backend_symbol_table_processing) (abfd, symbase, symcount); | |
252b5132 RH |
1244 | |
1245 | /* We rely on the zalloc to clear out the final symbol entry. */ | |
1246 | ||
1247 | symcount = sym - symbase; | |
1248 | ||
1249 | /* Fill in the user's symbol pointer vector if needed. */ | |
1250 | if (symptrs) | |
1251 | { | |
1252 | long l = symcount; | |
1253 | ||
1254 | sym = symbase; | |
1255 | while (l-- > 0) | |
1256 | { | |
1257 | *symptrs++ = &sym->symbol; | |
1258 | sym++; | |
1259 | } | |
1260 | *symptrs = 0; /* Final null pointer */ | |
1261 | } | |
1262 | ||
6cdc0ccc AM |
1263 | if (xverbuf != NULL) |
1264 | free (xverbuf); | |
1265 | if (isymbuf != NULL && hdr->contents != (unsigned char *) isymbuf) | |
1266 | free (isymbuf); | |
252b5132 | 1267 | return symcount; |
9ad5cbcf | 1268 | |
252b5132 | 1269 | error_return: |
6cdc0ccc AM |
1270 | if (xverbuf != NULL) |
1271 | free (xverbuf); | |
1272 | if (isymbuf != NULL && hdr->contents != (unsigned char *) isymbuf) | |
1273 | free (isymbuf); | |
252b5132 RH |
1274 | return -1; |
1275 | } | |
1276 | ||
60bcf0fa | 1277 | /* Read relocations for ASECT from REL_HDR. There are RELOC_COUNT of |
42fdc509 | 1278 | them. */ |
252b5132 | 1279 | |
b34976b6 | 1280 | static bfd_boolean |
42fdc509 MM |
1281 | elf_slurp_reloc_table_from_section (abfd, asect, rel_hdr, reloc_count, |
1282 | relents, symbols, dynamic) | |
252b5132 RH |
1283 | bfd *abfd; |
1284 | asection *asect; | |
42fdc509 MM |
1285 | Elf_Internal_Shdr *rel_hdr; |
1286 | bfd_size_type reloc_count; | |
1287 | arelent *relents; | |
252b5132 | 1288 | asymbol **symbols; |
b34976b6 | 1289 | bfd_boolean dynamic; |
252b5132 RH |
1290 | { |
1291 | struct elf_backend_data * const ebd = get_elf_backend_data (abfd); | |
252b5132 RH |
1292 | PTR allocated = NULL; |
1293 | bfd_byte *native_relocs; | |
252b5132 RH |
1294 | arelent *relent; |
1295 | unsigned int i; | |
1296 | int entsize; | |
5ad8645c | 1297 | unsigned int symcount; |
252b5132 | 1298 | |
dc810e39 | 1299 | allocated = (PTR) bfd_malloc (rel_hdr->sh_size); |
252b5132 RH |
1300 | if (allocated == NULL) |
1301 | goto error_return; | |
1302 | ||
1303 | if (bfd_seek (abfd, rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 1304 | || (bfd_bread (allocated, rel_hdr->sh_size, abfd) |
252b5132 RH |
1305 | != rel_hdr->sh_size)) |
1306 | goto error_return; | |
1307 | ||
1308 | native_relocs = (bfd_byte *) allocated; | |
1309 | ||
252b5132 RH |
1310 | entsize = rel_hdr->sh_entsize; |
1311 | BFD_ASSERT (entsize == sizeof (Elf_External_Rel) | |
1312 | || entsize == sizeof (Elf_External_Rela)); | |
1313 | ||
5ad8645c AM |
1314 | if (dynamic) |
1315 | symcount = bfd_get_dynamic_symcount (abfd); | |
1316 | else | |
1317 | symcount = bfd_get_symcount (abfd); | |
1318 | ||
252b5132 RH |
1319 | for (i = 0, relent = relents; |
1320 | i < reloc_count; | |
1321 | i++, relent++, native_relocs += entsize) | |
1322 | { | |
1323 | Elf_Internal_Rela rela; | |
252b5132 RH |
1324 | |
1325 | if (entsize == sizeof (Elf_External_Rela)) | |
947216bf | 1326 | elf_swap_reloca_in (abfd, native_relocs, &rela); |
252b5132 | 1327 | else |
947216bf | 1328 | elf_swap_reloc_in (abfd, native_relocs, &rela); |
252b5132 RH |
1329 | |
1330 | /* The address of an ELF reloc is section relative for an object | |
1331 | file, and absolute for an executable file or shared library. | |
1332 | The address of a normal BFD reloc is always section relative, | |
1333 | and the address of a dynamic reloc is absolute.. */ | |
1334 | if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0 || dynamic) | |
1335 | relent->address = rela.r_offset; | |
1336 | else | |
1337 | relent->address = rela.r_offset - asect->vma; | |
1338 | ||
1339 | if (ELF_R_SYM (rela.r_info) == 0) | |
1340 | relent->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
05a487dc | 1341 | else if (ELF_R_SYM (rela.r_info) > symcount) |
1f70368c DJ |
1342 | { |
1343 | (*_bfd_error_handler) | |
1344 | (_("%s(%s): relocation %d has invalid symbol index %ld"), | |
1345 | abfd->filename, asect->name, i, ELF_R_SYM (rela.r_info)); | |
1346 | relent->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr; | |
1347 | } | |
252b5132 RH |
1348 | else |
1349 | { | |
1350 | asymbol **ps, *s; | |
1351 | ||
1352 | ps = symbols + ELF_R_SYM (rela.r_info) - 1; | |
1353 | s = *ps; | |
1354 | ||
1355 | /* Canonicalize ELF section symbols. FIXME: Why? */ | |
1356 | if ((s->flags & BSF_SECTION_SYM) == 0) | |
1357 | relent->sym_ptr_ptr = ps; | |
1358 | else | |
1359 | relent->sym_ptr_ptr = s->section->symbol_ptr_ptr; | |
1360 | } | |
1361 | ||
1362 | relent->addend = rela.r_addend; | |
1363 | ||
90fff0d4 DJ |
1364 | if ((entsize == sizeof (Elf_External_Rela) |
1365 | && ebd->elf_info_to_howto != NULL) | |
1366 | || ebd->elf_info_to_howto_rel == NULL) | |
252b5132 RH |
1367 | (*ebd->elf_info_to_howto) (abfd, relent, &rela); |
1368 | else | |
947216bf | 1369 | (*ebd->elf_info_to_howto_rel) (abfd, relent, &rela); |
252b5132 RH |
1370 | } |
1371 | ||
252b5132 RH |
1372 | if (allocated != NULL) |
1373 | free (allocated); | |
1374 | ||
b34976b6 | 1375 | return TRUE; |
252b5132 RH |
1376 | |
1377 | error_return: | |
1378 | if (allocated != NULL) | |
1379 | free (allocated); | |
b34976b6 | 1380 | return FALSE; |
252b5132 RH |
1381 | } |
1382 | ||
42fdc509 MM |
1383 | /* Read in and swap the external relocs. */ |
1384 | ||
b34976b6 | 1385 | bfd_boolean |
42fdc509 MM |
1386 | elf_slurp_reloc_table (abfd, asect, symbols, dynamic) |
1387 | bfd *abfd; | |
1388 | asection *asect; | |
1389 | asymbol **symbols; | |
b34976b6 | 1390 | bfd_boolean dynamic; |
42fdc509 MM |
1391 | { |
1392 | struct bfd_elf_section_data * const d = elf_section_data (asect); | |
1393 | Elf_Internal_Shdr *rel_hdr; | |
1394 | Elf_Internal_Shdr *rel_hdr2; | |
1395 | bfd_size_type reloc_count; | |
1396 | bfd_size_type reloc_count2; | |
1397 | arelent *relents; | |
dc810e39 | 1398 | bfd_size_type amt; |
42fdc509 MM |
1399 | |
1400 | if (asect->relocation != NULL) | |
b34976b6 | 1401 | return TRUE; |
42fdc509 MM |
1402 | |
1403 | if (! dynamic) | |
1404 | { | |
1405 | if ((asect->flags & SEC_RELOC) == 0 | |
1406 | || asect->reloc_count == 0) | |
b34976b6 | 1407 | return TRUE; |
42fdc509 MM |
1408 | |
1409 | rel_hdr = &d->rel_hdr; | |
d9bc7a44 | 1410 | reloc_count = NUM_SHDR_ENTRIES (rel_hdr); |
42fdc509 | 1411 | rel_hdr2 = d->rel_hdr2; |
d9bc7a44 | 1412 | reloc_count2 = (rel_hdr2 ? NUM_SHDR_ENTRIES (rel_hdr2) : 0); |
42fdc509 MM |
1413 | |
1414 | BFD_ASSERT (asect->reloc_count == reloc_count + reloc_count2); | |
1415 | BFD_ASSERT (asect->rel_filepos == rel_hdr->sh_offset | |
1416 | || (rel_hdr2 && asect->rel_filepos == rel_hdr2->sh_offset)); | |
1417 | ||
1418 | } | |
1419 | else | |
1420 | { | |
57e21bef MM |
1421 | /* Note that ASECT->RELOC_COUNT tends not to be accurate in this |
1422 | case because relocations against this section may use the | |
1423 | dynamic symbol table, and in that case bfd_section_from_shdr | |
1424 | in elf.c does not update the RELOC_COUNT. */ | |
42fdc509 | 1425 | if (asect->_raw_size == 0) |
b34976b6 | 1426 | return TRUE; |
42fdc509 MM |
1427 | |
1428 | rel_hdr = &d->this_hdr; | |
d9bc7a44 | 1429 | reloc_count = NUM_SHDR_ENTRIES (rel_hdr); |
42fdc509 | 1430 | rel_hdr2 = NULL; |
57e21bef | 1431 | reloc_count2 = 0; |
42fdc509 MM |
1432 | } |
1433 | ||
dc810e39 AM |
1434 | amt = (reloc_count + reloc_count2) * sizeof (arelent); |
1435 | relents = (arelent *) bfd_alloc (abfd, amt); | |
42fdc509 | 1436 | if (relents == NULL) |
b34976b6 | 1437 | return FALSE; |
42fdc509 MM |
1438 | |
1439 | if (!elf_slurp_reloc_table_from_section (abfd, asect, | |
1440 | rel_hdr, reloc_count, | |
1441 | relents, | |
1442 | symbols, dynamic)) | |
b34976b6 | 1443 | return FALSE; |
60bcf0fa NC |
1444 | |
1445 | if (rel_hdr2 | |
42fdc509 MM |
1446 | && !elf_slurp_reloc_table_from_section (abfd, asect, |
1447 | rel_hdr2, reloc_count2, | |
1448 | relents + reloc_count, | |
1449 | symbols, dynamic)) | |
b34976b6 | 1450 | return FALSE; |
42fdc509 | 1451 | |
42fdc509 | 1452 | asect->relocation = relents; |
b34976b6 | 1453 | return TRUE; |
42fdc509 MM |
1454 | } |
1455 | ||
252b5132 RH |
1456 | #ifdef DEBUG |
1457 | static void | |
1458 | elf_debug_section (num, hdr) | |
1459 | int num; | |
1460 | Elf_Internal_Shdr *hdr; | |
1461 | { | |
1462 | fprintf (stderr, "\nSection#%d '%s' 0x%.8lx\n", num, | |
1463 | hdr->bfd_section != NULL ? hdr->bfd_section->name : "", | |
1464 | (long) hdr); | |
1465 | fprintf (stderr, | |
1466 | "sh_name = %ld\tsh_type = %ld\tsh_flags = %ld\n", | |
1467 | (long) hdr->sh_name, | |
1468 | (long) hdr->sh_type, | |
1469 | (long) hdr->sh_flags); | |
1470 | fprintf (stderr, | |
1471 | "sh_addr = %ld\tsh_offset = %ld\tsh_size = %ld\n", | |
1472 | (long) hdr->sh_addr, | |
1473 | (long) hdr->sh_offset, | |
1474 | (long) hdr->sh_size); | |
1475 | fprintf (stderr, | |
1476 | "sh_link = %ld\tsh_info = %ld\tsh_addralign = %ld\n", | |
1477 | (long) hdr->sh_link, | |
1478 | (long) hdr->sh_info, | |
1479 | (long) hdr->sh_addralign); | |
1480 | fprintf (stderr, "sh_entsize = %ld\n", | |
1481 | (long) hdr->sh_entsize); | |
1482 | fflush (stderr); | |
1483 | } | |
1484 | ||
1485 | static void | |
1486 | elf_debug_file (ehdrp) | |
1487 | Elf_Internal_Ehdr *ehdrp; | |
1488 | { | |
1489 | fprintf (stderr, "e_entry = 0x%.8lx\n", (long) ehdrp->e_entry); | |
1490 | fprintf (stderr, "e_phoff = %ld\n", (long) ehdrp->e_phoff); | |
1491 | fprintf (stderr, "e_phnum = %ld\n", (long) ehdrp->e_phnum); | |
1492 | fprintf (stderr, "e_phentsize = %ld\n", (long) ehdrp->e_phentsize); | |
1493 | fprintf (stderr, "e_shoff = %ld\n", (long) ehdrp->e_shoff); | |
1494 | fprintf (stderr, "e_shnum = %ld\n", (long) ehdrp->e_shnum); | |
1495 | fprintf (stderr, "e_shentsize = %ld\n", (long) ehdrp->e_shentsize); | |
1496 | } | |
1497 | ||
1498 | static char * | |
1499 | elf_symbol_flags (flags) | |
1500 | flagword flags; | |
1501 | { | |
1502 | static char buffer[1024]; | |
1503 | ||
1504 | buffer[0] = '\0'; | |
1505 | if (flags & BSF_LOCAL) | |
1506 | strcat (buffer, " local"); | |
1507 | ||
1508 | if (flags & BSF_GLOBAL) | |
1509 | strcat (buffer, " global"); | |
1510 | ||
1511 | if (flags & BSF_DEBUGGING) | |
1512 | strcat (buffer, " debug"); | |
1513 | ||
1514 | if (flags & BSF_FUNCTION) | |
1515 | strcat (buffer, " function"); | |
1516 | ||
1517 | if (flags & BSF_KEEP) | |
1518 | strcat (buffer, " keep"); | |
1519 | ||
1520 | if (flags & BSF_KEEP_G) | |
1521 | strcat (buffer, " keep_g"); | |
1522 | ||
1523 | if (flags & BSF_WEAK) | |
1524 | strcat (buffer, " weak"); | |
1525 | ||
1526 | if (flags & BSF_SECTION_SYM) | |
1527 | strcat (buffer, " section-sym"); | |
1528 | ||
1529 | if (flags & BSF_OLD_COMMON) | |
1530 | strcat (buffer, " old-common"); | |
1531 | ||
1532 | if (flags & BSF_NOT_AT_END) | |
1533 | strcat (buffer, " not-at-end"); | |
1534 | ||
1535 | if (flags & BSF_CONSTRUCTOR) | |
1536 | strcat (buffer, " constructor"); | |
1537 | ||
1538 | if (flags & BSF_WARNING) | |
1539 | strcat (buffer, " warning"); | |
1540 | ||
1541 | if (flags & BSF_INDIRECT) | |
1542 | strcat (buffer, " indirect"); | |
1543 | ||
1544 | if (flags & BSF_FILE) | |
1545 | strcat (buffer, " file"); | |
1546 | ||
1547 | if (flags & DYNAMIC) | |
1548 | strcat (buffer, " dynamic"); | |
1549 | ||
1550 | if (flags & ~(BSF_LOCAL | |
1551 | | BSF_GLOBAL | |
1552 | | BSF_DEBUGGING | |
1553 | | BSF_FUNCTION | |
1554 | | BSF_KEEP | |
1555 | | BSF_KEEP_G | |
1556 | | BSF_WEAK | |
1557 | | BSF_SECTION_SYM | |
1558 | | BSF_OLD_COMMON | |
1559 | | BSF_NOT_AT_END | |
1560 | | BSF_CONSTRUCTOR | |
1561 | | BSF_WARNING | |
1562 | | BSF_INDIRECT | |
1563 | | BSF_FILE | |
1564 | | BSF_DYNAMIC)) | |
1565 | strcat (buffer, " unknown-bits"); | |
1566 | ||
1567 | return buffer; | |
1568 | } | |
1569 | #endif | |
1570 | \f | |
8d6337fe RM |
1571 | /* Create a new BFD as if by bfd_openr. Rather than opening a file, |
1572 | reconstruct an ELF file by reading the segments out of remote memory | |
1573 | based on the ELF file header at EHDR_VMA and the ELF program headers it | |
1574 | points to. If not null, *LOADBASEP is filled in with the difference | |
1575 | between the VMAs from which the segments were read, and the VMAs the | |
1576 | file headers (and hence BFD's idea of each section's VMA) put them at. | |
1577 | ||
1578 | The function TARGET_READ_MEMORY is called to copy LEN bytes from the | |
1579 | remote memory at target address VMA into the local buffer at MYADDR; it | |
1580 | should return zero on success or an `errno' code on failure. TEMPL must | |
1581 | be a BFD for a target with the word size and byte order found in the | |
1582 | remote memory. */ | |
1583 | ||
1584 | bfd * | |
1585 | NAME(_bfd_elf,bfd_from_remote_memory) (templ, ehdr_vma, loadbasep, | |
1586 | target_read_memory) | |
1587 | bfd *templ; | |
1588 | bfd_vma ehdr_vma; | |
1589 | bfd_vma *loadbasep; | |
1590 | int (*target_read_memory) PARAMS ((bfd_vma vma, char *myaddr, int len)); | |
1591 | { | |
1592 | Elf_External_Ehdr x_ehdr; /* Elf file header, external form */ | |
1593 | Elf_Internal_Ehdr i_ehdr; /* Elf file header, internal form */ | |
1594 | Elf_External_Phdr *x_phdrs; | |
1595 | Elf_Internal_Phdr *i_phdrs, *last_phdr; | |
1596 | bfd *nbfd; | |
1597 | struct bfd_in_memory *bim; | |
1598 | int contents_size; | |
1599 | char *contents; | |
1600 | int err; | |
1601 | unsigned int i; | |
1602 | bfd_vma loadbase; | |
1603 | ||
1604 | /* Read in the ELF header in external format. */ | |
1605 | err = target_read_memory (ehdr_vma, (char *) &x_ehdr, sizeof x_ehdr); | |
1606 | if (err) | |
1607 | { | |
1608 | bfd_set_error (bfd_error_system_call); | |
1609 | errno = err; | |
1610 | return NULL; | |
1611 | } | |
1612 | ||
1613 | /* Now check to see if we have a valid ELF file, and one that BFD can | |
1614 | make use of. The magic number must match, the address size ('class') | |
1615 | and byte-swapping must match our XVEC entry. */ | |
1616 | ||
1617 | if (! elf_file_p (&x_ehdr) | |
1618 | || x_ehdr.e_ident[EI_VERSION] != EV_CURRENT | |
1619 | || x_ehdr.e_ident[EI_CLASS] != ELFCLASS) | |
1620 | { | |
1621 | bfd_set_error (bfd_error_wrong_format); | |
1622 | return NULL; | |
1623 | } | |
1624 | ||
1625 | /* Check that file's byte order matches xvec's */ | |
1626 | switch (x_ehdr.e_ident[EI_DATA]) | |
1627 | { | |
1628 | case ELFDATA2MSB: /* Big-endian */ | |
1629 | if (! bfd_header_big_endian (templ)) | |
1630 | { | |
1631 | bfd_set_error (bfd_error_wrong_format); | |
1632 | return NULL; | |
1633 | } | |
1634 | break; | |
1635 | case ELFDATA2LSB: /* Little-endian */ | |
1636 | if (! bfd_header_little_endian (templ)) | |
1637 | { | |
1638 | bfd_set_error (bfd_error_wrong_format); | |
1639 | return NULL; | |
1640 | } | |
1641 | break; | |
1642 | case ELFDATANONE: /* No data encoding specified */ | |
1643 | default: /* Unknown data encoding specified */ | |
1644 | bfd_set_error (bfd_error_wrong_format); | |
1645 | return NULL; | |
1646 | } | |
1647 | ||
1648 | elf_swap_ehdr_in (templ, &x_ehdr, &i_ehdr); | |
1649 | ||
1650 | /* The file header tells where to find the program headers. | |
1651 | These are what we use to actually choose what to read. */ | |
1652 | ||
1653 | if (i_ehdr.e_phentsize != sizeof (Elf_External_Phdr) || i_ehdr.e_phnum == 0) | |
1654 | { | |
1655 | bfd_set_error (bfd_error_wrong_format); | |
1656 | return NULL; | |
1657 | } | |
1658 | ||
1659 | x_phdrs = (Elf_External_Phdr *) | |
1660 | bfd_malloc (i_ehdr.e_phnum * (sizeof *x_phdrs + sizeof *i_phdrs)); | |
1661 | if (x_phdrs == NULL) | |
1662 | { | |
1663 | bfd_set_error (bfd_error_no_memory); | |
1664 | return NULL; | |
1665 | } | |
1666 | err = target_read_memory (ehdr_vma + i_ehdr.e_phoff, (char *) x_phdrs, | |
1667 | i_ehdr.e_phnum * sizeof x_phdrs[0]); | |
1668 | if (err) | |
1669 | { | |
1670 | free (x_phdrs); | |
1671 | bfd_set_error (bfd_error_system_call); | |
1672 | errno = err; | |
1673 | return NULL; | |
1674 | } | |
1675 | i_phdrs = (Elf_Internal_Phdr *) &x_phdrs[i_ehdr.e_phnum]; | |
1676 | ||
1677 | contents_size = 0; | |
1678 | last_phdr = NULL; | |
1679 | loadbase = ehdr_vma; | |
1680 | for (i = 0; i < i_ehdr.e_phnum; ++i) | |
1681 | { | |
1682 | elf_swap_phdr_in (templ, &x_phdrs[i], &i_phdrs[i]); | |
1683 | if (i_phdrs[i].p_type == PT_LOAD) | |
1684 | { | |
1685 | bfd_vma segment_end; | |
1686 | segment_end = (i_phdrs[i].p_offset + i_phdrs[i].p_filesz | |
1687 | + i_phdrs[i].p_align - 1) & -i_phdrs[i].p_align; | |
1688 | if (segment_end > (bfd_vma) contents_size) | |
1689 | contents_size = segment_end; | |
1690 | ||
1691 | if ((i_phdrs[i].p_offset & -i_phdrs[i].p_align) == 0) | |
1692 | loadbase = ehdr_vma - (i_phdrs[i].p_vaddr & -i_phdrs[i].p_align); | |
1693 | ||
1694 | last_phdr = &i_phdrs[i]; | |
1695 | } | |
1696 | } | |
1697 | if (last_phdr == NULL) | |
1698 | { | |
1699 | /* There were no PT_LOAD segments, so we don't have anything to read. */ | |
1700 | free (x_phdrs); | |
1701 | bfd_set_error (bfd_error_wrong_format); | |
1702 | return NULL; | |
1703 | } | |
1704 | ||
1705 | /* Trim the last segment so we don't bother with zeros in the last page | |
1706 | that are off the end of the file. However, if the extra bit in that | |
1707 | page includes the section headers, keep them. */ | |
1708 | if ((bfd_vma) contents_size > last_phdr->p_offset + last_phdr->p_filesz | |
1709 | && (bfd_vma) contents_size >= (i_ehdr.e_shoff | |
1710 | + i_ehdr.e_shnum * i_ehdr.e_shentsize)) | |
1711 | { | |
1712 | contents_size = last_phdr->p_offset + last_phdr->p_filesz; | |
1713 | if ((bfd_vma) contents_size < (i_ehdr.e_shoff | |
1714 | + i_ehdr.e_shnum * i_ehdr.e_shentsize)) | |
1715 | contents_size = i_ehdr.e_shoff + i_ehdr.e_shnum * i_ehdr.e_shentsize; | |
1716 | } | |
1717 | else | |
1718 | contents_size = last_phdr->p_offset + last_phdr->p_filesz; | |
1719 | ||
1720 | /* Now we know the size of the whole image we want read in. */ | |
1721 | contents = (char *) bfd_zmalloc ((bfd_size_type) contents_size); | |
1722 | if (contents == NULL) | |
1723 | { | |
1724 | free (x_phdrs); | |
1725 | bfd_set_error (bfd_error_no_memory); | |
1726 | return NULL; | |
1727 | } | |
1728 | ||
1729 | for (i = 0; i < i_ehdr.e_phnum; ++i) | |
1730 | if (i_phdrs[i].p_type == PT_LOAD) | |
1731 | { | |
1732 | bfd_vma start = i_phdrs[i].p_offset & -i_phdrs[i].p_align; | |
1733 | bfd_vma end = (i_phdrs[i].p_offset + i_phdrs[i].p_filesz | |
1734 | + i_phdrs[i].p_align - 1) & -i_phdrs[i].p_align; | |
1735 | if (end > (bfd_vma) contents_size) | |
1736 | end = contents_size; | |
1737 | err = target_read_memory ((loadbase + i_phdrs[i].p_vaddr) | |
1738 | & -i_phdrs[i].p_align, | |
1739 | contents + start, end - start); | |
1740 | if (err) | |
1741 | { | |
1742 | free (x_phdrs); | |
1743 | free (contents); | |
1744 | bfd_set_error (bfd_error_system_call); | |
1745 | errno = err; | |
1746 | return NULL; | |
1747 | } | |
1748 | } | |
1749 | free (x_phdrs); | |
1750 | ||
1751 | /* If the segments visible in memory didn't include the section headers, | |
1752 | then clear them from the file header. */ | |
1753 | if ((bfd_vma) contents_size < (i_ehdr.e_shoff | |
1754 | + i_ehdr.e_shnum * i_ehdr.e_shentsize)) | |
1755 | { | |
1756 | memset (&x_ehdr.e_shoff, 0, sizeof x_ehdr.e_shoff); | |
1757 | memset (&x_ehdr.e_shnum, 0, sizeof x_ehdr.e_shnum); | |
1758 | memset (&x_ehdr.e_shstrndx, 0, sizeof x_ehdr.e_shstrndx); | |
1759 | } | |
1760 | ||
1761 | /* This will normally have been in the first PT_LOAD segment. But it | |
1762 | conceivably could be missing, and we might have just changed it. */ | |
1763 | memcpy (contents, &x_ehdr, sizeof x_ehdr); | |
1764 | ||
1765 | /* Now we have a memory image of the ELF file contents. Make a BFD. */ | |
1766 | bim = ((struct bfd_in_memory *) | |
1767 | bfd_malloc ((bfd_size_type) sizeof (struct bfd_in_memory))); | |
1768 | if (bim == NULL) | |
1769 | { | |
1770 | free (contents); | |
1771 | bfd_set_error (bfd_error_no_memory); | |
1772 | return NULL; | |
1773 | } | |
1774 | nbfd = _bfd_new_bfd (); | |
1775 | if (nbfd == NULL) | |
1776 | { | |
1777 | free (bim); | |
1778 | free (contents); | |
1779 | bfd_set_error (bfd_error_no_memory); | |
1780 | return NULL; | |
1781 | } | |
1782 | nbfd->filename = "<in-memory>"; | |
1783 | nbfd->xvec = templ->xvec; | |
1784 | bim->size = contents_size; | |
1785 | bim->buffer = contents; | |
1786 | nbfd->iostream = (PTR) bim; | |
1787 | nbfd->flags = BFD_IN_MEMORY; | |
1788 | nbfd->direction = read_direction; | |
1789 | nbfd->mtime = time (NULL); | |
1790 | nbfd->mtime_set = TRUE; | |
1791 | ||
1792 | if (loadbasep) | |
1793 | *loadbasep = loadbase; | |
1794 | return nbfd; | |
1795 | } | |
1796 | \f | |
252b5132 RH |
1797 | #include "elfcore.h" |
1798 | #include "elflink.h" | |
1799 | \f | |
1800 | /* Size-dependent data and functions. */ | |
1801 | const struct elf_size_info NAME(_bfd_elf,size_info) = { | |
1802 | sizeof (Elf_External_Ehdr), | |
1803 | sizeof (Elf_External_Phdr), | |
1804 | sizeof (Elf_External_Shdr), | |
1805 | sizeof (Elf_External_Rel), | |
1806 | sizeof (Elf_External_Rela), | |
1807 | sizeof (Elf_External_Sym), | |
1808 | sizeof (Elf_External_Dyn), | |
1809 | sizeof (Elf_External_Note), | |
70bcb145 | 1810 | 4, |
c7ac6ff8 | 1811 | 1, |
45d6a902 | 1812 | ARCH_SIZE, LOG_FILE_ALIGN, |
252b5132 RH |
1813 | ELFCLASS, EV_CURRENT, |
1814 | elf_write_out_phdrs, | |
1815 | elf_write_shdrs_and_ehdr, | |
b9f66672 | 1816 | elf_write_relocs, |
73ff0d56 | 1817 | elf_swap_symbol_in, |
252b5132 RH |
1818 | elf_swap_symbol_out, |
1819 | elf_slurp_reloc_table, | |
1820 | elf_slurp_symbol_table, | |
c7ac6ff8 MM |
1821 | elf_swap_dyn_in, |
1822 | elf_swap_dyn_out, | |
947216bf AM |
1823 | elf_swap_reloc_in, |
1824 | elf_swap_reloc_out, | |
1825 | elf_swap_reloca_in, | |
1826 | elf_swap_reloca_out | |
252b5132 | 1827 | }; |