Commit | Line | Data |
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252b5132 | 1 | /* BFD back end for NetBSD style core files |
9e7b37b3 AM |
2 | Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001, |
3 | 2002 | |
7898deda | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | Written by Paul Kranenburg, EUR |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program; if not, write to the Free Software | |
1518639e | 21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
252b5132 RH |
22 | |
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "libbfd.h" | |
26 | #include "libaout.h" /* BFD a.out internal data structures */ | |
27 | ||
28 | #include <sys/param.h> | |
29 | #include <sys/dir.h> | |
30 | #include <signal.h> | |
31 | #include <sys/core.h> | |
32 | ||
33 | /* | |
1518639e | 34 | * FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe)) |
252b5132 RH |
35 | */ |
36 | ||
37 | struct netbsd_core_struct { | |
38 | struct core core; | |
39 | } *rawptr; | |
40 | ||
41 | /* forward declarations */ | |
42 | ||
b34976b6 AM |
43 | static const bfd_target *netbsd_core_file_p |
44 | PARAMS ((bfd *abfd)); | |
45 | static char *netbsd_core_file_failing_command | |
46 | PARAMS ((bfd *abfd)); | |
47 | static int netbsd_core_file_failing_signal | |
48 | PARAMS ((bfd *abfd)); | |
49 | static bfd_boolean netbsd_core_file_matches_executable_p | |
dc810e39 | 50 | PARAMS ((bfd *core_bfd, bfd *exec_bfd)); |
b34976b6 AM |
51 | static void swap_abort |
52 | PARAMS ((void)); | |
252b5132 RH |
53 | |
54 | /* Handle NetBSD-style core dump file. */ | |
55 | ||
252b5132 RH |
56 | static const bfd_target * |
57 | netbsd_core_file_p (abfd) | |
58 | bfd *abfd; | |
59 | ||
60 | { | |
dc810e39 AM |
61 | int i, val; |
62 | file_ptr offset; | |
63 | asection *asect, *asect2; | |
64 | struct core core; | |
65 | struct coreseg coreseg; | |
66 | bfd_size_type amt = sizeof core; | |
67 | ||
68 | val = bfd_bread ((void *) &core, amt, abfd); | |
69 | if (val != sizeof core) | |
70 | { | |
71 | /* Too small to be a core file */ | |
72 | bfd_set_error (bfd_error_wrong_format); | |
73 | return 0; | |
74 | } | |
75 | ||
76 | if (CORE_GETMAGIC (core) != COREMAGIC) | |
77 | { | |
78 | bfd_set_error (bfd_error_wrong_format); | |
79 | return 0; | |
80 | } | |
81 | ||
82 | amt = sizeof (struct netbsd_core_struct); | |
83 | rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt); | |
84 | if (rawptr == NULL) | |
9e7b37b3 | 85 | return 0; |
dc810e39 AM |
86 | |
87 | rawptr->core = core; | |
88 | abfd->tdata.netbsd_core_data = rawptr; | |
89 | ||
90 | offset = core.c_hdrsize; | |
91 | for (i = 0; i < core.c_nseg; i++) | |
92 | { | |
9e7b37b3 AM |
93 | const char *sname; |
94 | flagword flags; | |
dc810e39 AM |
95 | |
96 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
97 | goto punt; | |
98 | ||
99 | val = bfd_bread ((void *) &coreseg, (bfd_size_type) sizeof coreseg, abfd); | |
100 | if (val != sizeof coreseg) | |
101 | { | |
102 | bfd_set_error (bfd_error_file_truncated); | |
103 | goto punt; | |
252b5132 | 104 | } |
dc810e39 AM |
105 | if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC) |
106 | { | |
107 | bfd_set_error (bfd_error_wrong_format); | |
108 | goto punt; | |
252b5132 RH |
109 | } |
110 | ||
dc810e39 AM |
111 | offset += core.c_seghdrsize; |
112 | ||
9e7b37b3 | 113 | switch (CORE_GETFLAG (coreseg)) |
dc810e39 | 114 | { |
9e7b37b3 AM |
115 | case CORE_CPU: |
116 | sname = ".reg"; | |
117 | flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
118 | break; | |
119 | case CORE_DATA: | |
120 | sname = ".data"; | |
121 | flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; | |
122 | break; | |
123 | case CORE_STACK: | |
124 | sname = ".stack"; | |
125 | flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; | |
126 | break; | |
127 | default: | |
128 | sname = ".unknown"; | |
129 | flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
130 | break; | |
252b5132 | 131 | } |
9e7b37b3 AM |
132 | asect = bfd_make_section_anyway (abfd, sname); |
133 | if (asect == NULL) | |
134 | goto punt; | |
252b5132 | 135 | |
9e7b37b3 | 136 | asect->flags = flags; |
dc810e39 AM |
137 | asect->_raw_size = coreseg.c_size; |
138 | asect->vma = coreseg.c_addr; | |
139 | asect->filepos = offset; | |
140 | asect->alignment_power = 2; | |
9e7b37b3 | 141 | |
dc810e39 AM |
142 | offset += coreseg.c_size; |
143 | ||
9e7b37b3 AM |
144 | #ifdef CORE_FPU_OFFSET |
145 | switch (CORE_GETFLAG (coreseg)) | |
dc810e39 AM |
146 | { |
147 | case CORE_CPU: | |
dc810e39 AM |
148 | /* Hackish... */ |
149 | asect->_raw_size = CORE_FPU_OFFSET; | |
9e7b37b3 | 150 | asect2 = bfd_make_section_anyway (abfd, ".reg2"); |
dc810e39 | 151 | if (asect2 == NULL) |
9e7b37b3 | 152 | goto punt; |
dc810e39 AM |
153 | asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET; |
154 | asect2->vma = 0; | |
155 | asect2->filepos = asect->filepos + CORE_FPU_OFFSET; | |
156 | asect2->alignment_power = 2; | |
dc810e39 | 157 | asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS; |
dc810e39 | 158 | break; |
252b5132 | 159 | } |
9e7b37b3 | 160 | #endif |
dc810e39 AM |
161 | } |
162 | ||
163 | /* OK, we believe you. You're a core file (sure, sure). */ | |
164 | return abfd->xvec; | |
165 | ||
166 | punt: | |
9e7b37b3 AM |
167 | bfd_release (abfd, abfd->tdata.any); |
168 | abfd->tdata.any = NULL; | |
169 | bfd_section_list_clear (abfd); | |
dc810e39 | 170 | return 0; |
252b5132 RH |
171 | } |
172 | ||
173 | static char* | |
174 | netbsd_core_file_failing_command (abfd) | |
175 | bfd *abfd; | |
176 | { | |
177 | /*return core_command (abfd);*/ | |
178 | return abfd->tdata.netbsd_core_data->core.c_name; | |
179 | } | |
180 | ||
252b5132 RH |
181 | static int |
182 | netbsd_core_file_failing_signal (abfd) | |
183 | bfd *abfd; | |
184 | { | |
185 | /*return core_signal (abfd);*/ | |
186 | return abfd->tdata.netbsd_core_data->core.c_signo; | |
187 | } | |
188 | ||
b34976b6 | 189 | static bfd_boolean |
252b5132 | 190 | netbsd_core_file_matches_executable_p (core_bfd, exec_bfd) |
dc810e39 AM |
191 | bfd *core_bfd ATTRIBUTE_UNUSED; |
192 | bfd *exec_bfd ATTRIBUTE_UNUSED; | |
252b5132 | 193 | { |
b34976b6 | 194 | return TRUE; /* FIXME, We have no way of telling at this point */ |
252b5132 RH |
195 | } |
196 | \f | |
197 | /* If somebody calls any byte-swapping routines, shoot them. */ | |
198 | static void | |
1518639e | 199 | swap_abort () |
252b5132 | 200 | { |
1518639e | 201 | abort (); /* This way doesn't require any declaration for ANSI to fuck up */ |
252b5132 RH |
202 | } |
203 | #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) | |
204 | #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) | |
205 | #define NO_SIGNED_GET \ | |
206 | ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) | |
207 | ||
208 | const bfd_target netbsd_core_vec = | |
209 | { | |
210 | "netbsd-core", | |
211 | bfd_target_unknown_flavour, | |
212 | BFD_ENDIAN_UNKNOWN, /* target byte order */ | |
213 | BFD_ENDIAN_UNKNOWN, /* target headers byte order */ | |
214 | (HAS_RELOC | EXEC_P | /* object flags */ | |
215 | HAS_LINENO | HAS_DEBUG | | |
216 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
217 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
218 | 0, /* symbol prefix */ | |
219 | ' ', /* ar_pad_char */ | |
220 | 16, /* ar_max_namelen */ | |
221 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ | |
222 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ | |
223 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ | |
224 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ | |
225 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ | |
226 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ | |
227 | ||
228 | { /* bfd_check_format */ | |
229 | _bfd_dummy_target, /* unknown format */ | |
230 | _bfd_dummy_target, /* object file */ | |
231 | _bfd_dummy_target, /* archive */ | |
232 | netbsd_core_file_p /* a core file */ | |
233 | }, | |
234 | { /* bfd_set_format */ | |
235 | bfd_false, bfd_false, | |
236 | bfd_false, bfd_false | |
237 | }, | |
238 | { /* bfd_write_contents */ | |
239 | bfd_false, bfd_false, | |
240 | bfd_false, bfd_false | |
241 | }, | |
1518639e | 242 | |
252b5132 RH |
243 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
244 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
245 | BFD_JUMP_TABLE_CORE (netbsd), | |
246 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
247 | BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), | |
248 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
249 | BFD_JUMP_TABLE_WRITE (_bfd_generic), | |
250 | BFD_JUMP_TABLE_LINK (_bfd_nolink), | |
251 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
252 | ||
c3c89269 | 253 | NULL, |
1518639e | 254 | |
252b5132 RH |
255 | (PTR) 0 /* backend_data */ |
256 | }; |