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252b5132 | 1 | /* BFD back-end for Irix core files. |
7898deda | 2 | Copyright 1993, 1994, 1996, 1999, 2001 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Stu Grossman, Cygnus Support. |
4 | Converted to back-end form by Ian Lance Taylor, Cygnus Support | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | /* This file can only be compiled on systems which use Irix style core | |
23 | files (namely, Irix 4 and Irix 5, so far). */ | |
24 | ||
25 | #include "bfd.h" | |
26 | #include "sysdep.h" | |
27 | #include "libbfd.h" | |
28 | ||
29 | #ifdef IRIX_CORE | |
30 | ||
31 | #include <core.out.h> | |
32 | ||
dc810e39 | 33 | struct sgi_core_struct |
252b5132 RH |
34 | { |
35 | int sig; | |
36 | char cmd[CORE_NAMESIZE]; | |
37 | }; | |
38 | ||
39 | #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data) | |
40 | #define core_signal(bfd) (core_hdr(bfd)->sig) | |
41 | #define core_command(bfd) (core_hdr(bfd)->cmd) | |
42 | ||
43 | static asection *make_bfd_asection | |
dc810e39 | 44 | PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr)); |
252b5132 RH |
45 | static const bfd_target *irix_core_core_file_p PARAMS ((bfd *)); |
46 | static char *irix_core_core_file_failing_command PARAMS ((bfd *)); | |
47 | static int irix_core_core_file_failing_signal PARAMS ((bfd *)); | |
dc810e39 | 48 | static boolean irix_core_core_file_matches_executable_p |
252b5132 RH |
49 | PARAMS ((bfd *, bfd *)); |
50 | static asymbol *irix_core_make_empty_symbol PARAMS ((bfd *)); | |
51 | static void swap_abort PARAMS ((void)); | |
52 | ||
53 | static asection * | |
54 | make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) | |
55 | bfd *abfd; | |
dc810e39 | 56 | const char *name; |
252b5132 RH |
57 | flagword flags; |
58 | bfd_size_type _raw_size; | |
59 | bfd_vma vma; | |
60 | file_ptr filepos; | |
61 | { | |
62 | asection *asect; | |
63 | ||
64 | asect = bfd_make_section_anyway (abfd, name); | |
65 | if (!asect) | |
66 | return NULL; | |
67 | ||
68 | asect->flags = flags; | |
69 | asect->_raw_size = _raw_size; | |
70 | asect->vma = vma; | |
71 | asect->filepos = filepos; | |
72 | asect->alignment_power = 4; | |
73 | ||
74 | return asect; | |
75 | } | |
76 | ||
77 | static const bfd_target * | |
78 | irix_core_core_file_p (abfd) | |
79 | bfd *abfd; | |
80 | { | |
81 | int val; | |
82 | int i; | |
83 | char *secname; | |
84 | struct coreout coreout; | |
85 | struct idesc *idg, *idf, *ids; | |
dc810e39 | 86 | bfd_size_type amt; |
252b5132 | 87 | |
dc810e39 | 88 | val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd); |
252b5132 RH |
89 | if (val != sizeof coreout) |
90 | { | |
91 | if (bfd_get_error () != bfd_error_system_call) | |
92 | bfd_set_error (bfd_error_wrong_format); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | #ifndef CORE_MAGICN32 | |
97 | #define CORE_MAGICN32 CORE_MAGIC | |
98 | #endif | |
99 | if ((coreout.c_magic != CORE_MAGIC && coreout.c_magic != CORE_MAGICN32) | |
100 | || coreout.c_version != CORE_VERSION1) | |
101 | return 0; | |
102 | ||
dc810e39 AM |
103 | amt = sizeof (struct sgi_core_struct); |
104 | core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
105 | if (!core_hdr (abfd)) |
106 | return NULL; | |
107 | ||
108 | strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE); | |
109 | core_signal (abfd) = coreout.c_sigcause; | |
110 | ||
111 | if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0) | |
112 | return NULL; | |
113 | ||
114 | for (i = 0; i < coreout.c_nvmap; i++) | |
115 | { | |
116 | struct vmap vmap; | |
117 | ||
dc810e39 | 118 | val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd); |
252b5132 RH |
119 | if (val != sizeof vmap) |
120 | break; | |
121 | ||
122 | switch (vmap.v_type) | |
123 | { | |
124 | case VDATA: | |
125 | secname = ".data"; | |
126 | break; | |
127 | case VSTACK: | |
128 | secname = ".stack"; | |
129 | break; | |
130 | #ifdef VMAPFILE | |
131 | case VMAPFILE: | |
132 | secname = ".mapfile"; | |
133 | break; | |
134 | #endif | |
135 | default: | |
136 | continue; | |
137 | } | |
138 | ||
139 | /* A file offset of zero means that the section is not contained | |
140 | in the corefile. */ | |
141 | if (vmap.v_offset == 0) | |
142 | continue; | |
143 | ||
144 | if (!make_bfd_asection (abfd, secname, | |
145 | SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS, | |
146 | vmap.v_len, | |
147 | vmap.v_vaddr, | |
148 | vmap.v_offset)) | |
149 | return NULL; | |
150 | } | |
151 | ||
152 | /* Make sure that the regs are contiguous within the core file. */ | |
153 | ||
154 | idg = &coreout.c_idesc[I_GPREGS]; | |
155 | idf = &coreout.c_idesc[I_FPREGS]; | |
156 | ids = &coreout.c_idesc[I_SPECREGS]; | |
157 | ||
158 | if (idg->i_offset + idg->i_len != idf->i_offset | |
159 | || idf->i_offset + idf->i_len != ids->i_offset) | |
160 | return 0; /* Can't deal with non-contig regs */ | |
161 | ||
162 | if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0) | |
163 | return NULL; | |
164 | ||
165 | make_bfd_asection (abfd, ".reg", | |
166 | SEC_HAS_CONTENTS, | |
167 | idg->i_len + idf->i_len + ids->i_len, | |
168 | 0, | |
169 | idg->i_offset); | |
dc810e39 | 170 | |
252b5132 | 171 | /* OK, we believe you. You're a core file (sure, sure). */ |
dc3febfa | 172 | bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0); |
252b5132 RH |
173 | |
174 | return abfd->xvec; | |
175 | } | |
176 | ||
177 | static char * | |
178 | irix_core_core_file_failing_command (abfd) | |
179 | bfd *abfd; | |
180 | { | |
181 | return core_command (abfd); | |
182 | } | |
183 | ||
184 | static int | |
185 | irix_core_core_file_failing_signal (abfd) | |
186 | bfd *abfd; | |
187 | { | |
188 | return core_signal (abfd); | |
189 | } | |
190 | ||
191 | static boolean | |
192 | irix_core_core_file_matches_executable_p (core_bfd, exec_bfd) | |
193 | bfd *core_bfd, *exec_bfd; | |
194 | { | |
195 | return true; /* XXX - FIXME */ | |
196 | } | |
197 | ||
198 | static asymbol * | |
199 | irix_core_make_empty_symbol (abfd) | |
200 | bfd *abfd; | |
201 | { | |
dc810e39 AM |
202 | bfd_size_type amt = sizeof (asymbol); |
203 | asymbol *new = (asymbol *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
204 | if (new) |
205 | new->the_bfd = abfd; | |
206 | return new; | |
207 | } | |
208 | ||
209 | #define irix_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound | |
210 | #define irix_core_get_symtab _bfd_nosymbols_get_symtab | |
211 | #define irix_core_print_symbol _bfd_nosymbols_print_symbol | |
212 | #define irix_core_get_symbol_info _bfd_nosymbols_get_symbol_info | |
213 | #define irix_core_bfd_is_local_label_name \ | |
214 | _bfd_nosymbols_bfd_is_local_label_name | |
215 | #define irix_core_get_lineno _bfd_nosymbols_get_lineno | |
216 | #define irix_core_find_nearest_line _bfd_nosymbols_find_nearest_line | |
217 | #define irix_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
218 | #define irix_core_read_minisymbols _bfd_nosymbols_read_minisymbols | |
219 | #define irix_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol | |
220 | ||
221 | /* If somebody calls any byte-swapping routines, shoot them. */ | |
222 | static void | |
223 | swap_abort() | |
224 | { | |
225 | abort(); /* This way doesn't require any declaration for ANSI to fuck up */ | |
226 | } | |
227 | #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) | |
228 | #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) | |
229 | #define NO_SIGNED_GET \ | |
230 | ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) | |
231 | ||
232 | const bfd_target irix_core_vec = | |
233 | { | |
234 | "irix-core", | |
235 | bfd_target_unknown_flavour, | |
236 | BFD_ENDIAN_BIG, /* target byte order */ | |
237 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
238 | (HAS_RELOC | EXEC_P | /* object flags */ | |
239 | HAS_LINENO | HAS_DEBUG | | |
240 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
241 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
242 | 0, /* symbol prefix */ | |
243 | ' ', /* ar_pad_char */ | |
244 | 16, /* ar_max_namelen */ | |
245 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ | |
246 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ | |
247 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ | |
248 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ | |
249 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ | |
250 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ | |
251 | ||
252 | { /* bfd_check_format */ | |
253 | _bfd_dummy_target, /* unknown format */ | |
254 | _bfd_dummy_target, /* object file */ | |
255 | _bfd_dummy_target, /* archive */ | |
256 | irix_core_core_file_p /* a core file */ | |
257 | }, | |
258 | { /* bfd_set_format */ | |
259 | bfd_false, bfd_false, | |
260 | bfd_false, bfd_false | |
261 | }, | |
262 | { /* bfd_write_contents */ | |
263 | bfd_false, bfd_false, | |
264 | bfd_false, bfd_false | |
265 | }, | |
dc810e39 | 266 | |
252b5132 RH |
267 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
268 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
269 | BFD_JUMP_TABLE_CORE (irix_core), | |
270 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
271 | BFD_JUMP_TABLE_SYMBOLS (irix_core), | |
272 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
273 | BFD_JUMP_TABLE_WRITE (_bfd_generic), | |
274 | BFD_JUMP_TABLE_LINK (_bfd_nolink), | |
275 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
276 | ||
c3c89269 | 277 | NULL, |
dc810e39 | 278 | |
252b5132 RH |
279 | (PTR) 0 /* backend_data */ |
280 | }; | |
281 | ||
282 | #endif /* IRIX_CORE */ |