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252b5132 | 1 | /* BFD back end for NetBSD style core files |
7898deda NC |
2 | Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | Written by Paul Kranenburg, EUR |
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 | |
1518639e | 20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
252b5132 RH |
21 | |
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | #include "libaout.h" /* BFD a.out internal data structures */ | |
26 | ||
27 | #include <sys/param.h> | |
28 | #include <sys/dir.h> | |
29 | #include <signal.h> | |
30 | #include <sys/core.h> | |
31 | ||
32 | /* | |
1518639e | 33 | * FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe)) |
252b5132 RH |
34 | */ |
35 | ||
36 | struct netbsd_core_struct { | |
37 | struct core core; | |
38 | } *rawptr; | |
39 | ||
40 | /* forward declarations */ | |
41 | ||
42 | static const bfd_target * netbsd_core_file_p PARAMS ((bfd *abfd)); | |
43 | static char * netbsd_core_file_failing_command PARAMS ((bfd *abfd)); | |
44 | static int netbsd_core_file_failing_signal PARAMS ((bfd *abfd)); | |
45 | static boolean netbsd_core_file_matches_executable_p | |
46 | PARAMS ((bfd *core_bfd, bfd *exec_bfd)); | |
47 | static void swap_abort PARAMS ((void)); | |
48 | ||
49 | /* Handle NetBSD-style core dump file. */ | |
50 | ||
51 | /* ARGSUSED */ | |
52 | static const bfd_target * | |
53 | netbsd_core_file_p (abfd) | |
54 | bfd *abfd; | |
55 | ||
56 | { | |
57 | int i, val, offset; | |
58 | asection *asect, *asect2; | |
59 | struct core core; | |
60 | struct coreseg coreseg; | |
61 | ||
62 | val = bfd_read ((void *)&core, 1, sizeof core, abfd); | |
63 | if (val != sizeof core) { | |
64 | /* Too small to be a core file */ | |
65 | bfd_set_error(bfd_error_wrong_format); | |
66 | return 0; | |
67 | } | |
68 | ||
69 | if (CORE_GETMAGIC(core) != COREMAGIC) { | |
70 | bfd_set_error(bfd_error_wrong_format); | |
71 | return 0; | |
72 | } | |
73 | ||
74 | rawptr = (struct netbsd_core_struct *) | |
75 | bfd_zalloc (abfd, sizeof (struct netbsd_core_struct)); | |
76 | if (rawptr == NULL) { | |
77 | bfd_set_error(bfd_error_no_memory); | |
78 | return 0; | |
79 | } | |
80 | ||
81 | rawptr->core = core; | |
82 | abfd->tdata.netbsd_core_data = rawptr; | |
83 | ||
84 | offset = core.c_hdrsize; | |
85 | for (i = 0; i < core.c_nseg; i++) { | |
86 | ||
87 | if (bfd_seek (abfd, offset, SEEK_SET) != 0) | |
88 | goto punt; | |
89 | ||
90 | val = bfd_read ((void *)&coreseg, 1, sizeof coreseg, abfd); | |
91 | if (val != sizeof coreseg) { | |
92 | bfd_set_error(bfd_error_file_truncated); | |
93 | goto punt; | |
94 | } | |
95 | if (CORE_GETMAGIC(coreseg) != CORESEGMAGIC) { | |
96 | bfd_set_error(bfd_error_wrong_format); | |
97 | goto punt; | |
98 | } | |
99 | ||
100 | offset += core.c_seghdrsize; | |
101 | ||
1518639e | 102 | asect = (asection *) bfd_zalloc (abfd, sizeof (asection)); |
252b5132 RH |
103 | if (asect == NULL) { |
104 | bfd_set_error(bfd_error_no_memory); | |
105 | goto punt; | |
106 | } | |
107 | ||
108 | asect->_raw_size = coreseg.c_size; | |
109 | asect->vma = coreseg.c_addr; | |
110 | asect->filepos = offset; | |
111 | asect->alignment_power = 2; | |
112 | asect->next = abfd->sections; | |
113 | abfd->sections = asect; | |
114 | abfd->section_count++; | |
115 | offset += coreseg.c_size; | |
116 | ||
117 | switch (CORE_GETFLAG(coreseg)) { | |
118 | case CORE_CPU: | |
119 | asect->name = ".reg"; | |
120 | asect->flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
121 | #ifdef CORE_FPU_OFFSET | |
1518639e | 122 | /* Hackish... */ |
252b5132 RH |
123 | asect->_raw_size = CORE_FPU_OFFSET; |
124 | asect2 = (asection *)bfd_zalloc (abfd, | |
125 | sizeof (asection)); | |
126 | if (asect2 == NULL) { | |
127 | bfd_set_error(bfd_error_no_memory); | |
128 | goto punt; | |
129 | } | |
130 | asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET; | |
131 | asect2->vma = 0; | |
132 | asect2->filepos = asect->filepos + CORE_FPU_OFFSET; | |
133 | asect2->alignment_power = 2; | |
134 | asect2->next = abfd->sections; | |
135 | asect2->name = ".reg2"; | |
136 | asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS; | |
137 | abfd->sections = asect2; | |
138 | abfd->section_count++; | |
139 | #endif | |
140 | ||
141 | break; | |
142 | case CORE_DATA: | |
143 | asect->name = ".data"; | |
144 | asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS; | |
145 | break; | |
146 | case CORE_STACK: | |
147 | asect->name = ".stack"; | |
148 | asect->flags = SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS; | |
149 | break; | |
150 | } | |
151 | } | |
152 | ||
153 | /* OK, we believe you. You're a core file (sure, sure). */ | |
154 | return abfd->xvec; | |
155 | ||
156 | punt: { | |
157 | asection *anext; | |
158 | for (asect = abfd->sections; asect; asect = anext) { | |
159 | anext = asect->next; | |
160 | free((void *)asect); | |
161 | } | |
162 | } | |
163 | free ((void *)rawptr); | |
164 | abfd->tdata.netbsd_core_data = NULL; | |
165 | abfd->sections = NULL; | |
166 | abfd->section_count = 0; | |
167 | return 0; | |
168 | } | |
169 | ||
170 | static char* | |
171 | netbsd_core_file_failing_command (abfd) | |
172 | bfd *abfd; | |
173 | { | |
174 | /*return core_command (abfd);*/ | |
175 | return abfd->tdata.netbsd_core_data->core.c_name; | |
176 | } | |
177 | ||
178 | /* ARGSUSED */ | |
179 | static int | |
180 | netbsd_core_file_failing_signal (abfd) | |
181 | bfd *abfd; | |
182 | { | |
183 | /*return core_signal (abfd);*/ | |
184 | return abfd->tdata.netbsd_core_data->core.c_signo; | |
185 | } | |
186 | ||
187 | /* ARGSUSED */ | |
188 | static boolean | |
189 | netbsd_core_file_matches_executable_p (core_bfd, exec_bfd) | |
190 | bfd *core_bfd, *exec_bfd; | |
191 | { | |
192 | return true; /* FIXME, We have no way of telling at this point */ | |
193 | } | |
194 | \f | |
195 | /* If somebody calls any byte-swapping routines, shoot them. */ | |
196 | static void | |
1518639e | 197 | swap_abort () |
252b5132 | 198 | { |
1518639e | 199 | abort (); /* This way doesn't require any declaration for ANSI to fuck up */ |
252b5132 RH |
200 | } |
201 | #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) | |
202 | #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) | |
203 | #define NO_SIGNED_GET \ | |
204 | ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) | |
205 | ||
206 | const bfd_target netbsd_core_vec = | |
207 | { | |
208 | "netbsd-core", | |
209 | bfd_target_unknown_flavour, | |
210 | BFD_ENDIAN_UNKNOWN, /* target byte order */ | |
211 | BFD_ENDIAN_UNKNOWN, /* target headers byte order */ | |
212 | (HAS_RELOC | EXEC_P | /* object flags */ | |
213 | HAS_LINENO | HAS_DEBUG | | |
214 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
215 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
216 | 0, /* symbol prefix */ | |
217 | ' ', /* ar_pad_char */ | |
218 | 16, /* ar_max_namelen */ | |
219 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ | |
220 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ | |
221 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ | |
222 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ | |
223 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ | |
224 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ | |
225 | ||
226 | { /* bfd_check_format */ | |
227 | _bfd_dummy_target, /* unknown format */ | |
228 | _bfd_dummy_target, /* object file */ | |
229 | _bfd_dummy_target, /* archive */ | |
230 | netbsd_core_file_p /* a core file */ | |
231 | }, | |
232 | { /* bfd_set_format */ | |
233 | bfd_false, bfd_false, | |
234 | bfd_false, bfd_false | |
235 | }, | |
236 | { /* bfd_write_contents */ | |
237 | bfd_false, bfd_false, | |
238 | bfd_false, bfd_false | |
239 | }, | |
1518639e | 240 | |
252b5132 RH |
241 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
242 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
243 | BFD_JUMP_TABLE_CORE (netbsd), | |
244 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
245 | BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols), | |
246 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
247 | BFD_JUMP_TABLE_WRITE (_bfd_generic), | |
248 | BFD_JUMP_TABLE_LINK (_bfd_nolink), | |
249 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
250 | ||
c3c89269 | 251 | NULL, |
1518639e | 252 | |
252b5132 RH |
253 | (PTR) 0 /* backend_data */ |
254 | }; |