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252b5132 | 1 | /* BFD back-end for OSF/1 core files. |
dc810e39 AM |
2 | Copyright 1993, 1994, 1995, 1998, 1999, 2001 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* This file can only be compiled on systems which use OSF/1 style | |
22 | core files. */ | |
23 | ||
24 | #include "bfd.h" | |
25 | #include "sysdep.h" | |
26 | #include "libbfd.h" | |
27 | ||
28 | #include <sys/user.h> | |
29 | #include <sys/core.h> | |
30 | ||
31 | /* forward declarations */ | |
32 | ||
33 | static asection * | |
dc810e39 | 34 | make_bfd_asection PARAMS ((bfd *, const char *, flagword, bfd_size_type, |
252b5132 RH |
35 | bfd_vma, file_ptr)); |
36 | static asymbol * | |
37 | osf_core_make_empty_symbol PARAMS ((bfd *)); | |
38 | static const bfd_target * | |
39 | osf_core_core_file_p PARAMS ((bfd *)); | |
40 | static char * | |
41 | osf_core_core_file_failing_command PARAMS ((bfd *)); | |
42 | static int | |
43 | osf_core_core_file_failing_signal PARAMS ((bfd *)); | |
44 | static boolean | |
45 | osf_core_core_file_matches_executable_p PARAMS ((bfd *, bfd *)); | |
46 | static void | |
47 | swap_abort PARAMS ((void)); | |
48 | ||
49 | /* These are stored in the bfd's tdata */ | |
50 | ||
dc810e39 | 51 | struct osf_core_struct |
252b5132 RH |
52 | { |
53 | int sig; | |
54 | char cmd[MAXCOMLEN + 1]; | |
55 | }; | |
56 | ||
57 | #define core_hdr(bfd) ((bfd)->tdata.osf_core_data) | |
58 | #define core_signal(bfd) (core_hdr(bfd)->sig) | |
59 | #define core_command(bfd) (core_hdr(bfd)->cmd) | |
60 | ||
61 | static asection * | |
62 | make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) | |
63 | bfd *abfd; | |
dc810e39 | 64 | const char *name; |
252b5132 RH |
65 | flagword flags; |
66 | bfd_size_type _raw_size; | |
67 | bfd_vma vma; | |
68 | file_ptr filepos; | |
69 | { | |
70 | asection *asect; | |
71 | ||
72 | asect = bfd_make_section_anyway (abfd, name); | |
73 | if (!asect) | |
74 | return NULL; | |
75 | ||
76 | asect->flags = flags; | |
77 | asect->_raw_size = _raw_size; | |
78 | asect->vma = vma; | |
79 | asect->filepos = filepos; | |
80 | asect->alignment_power = 8; | |
81 | ||
82 | return asect; | |
83 | } | |
84 | ||
85 | static asymbol * | |
86 | osf_core_make_empty_symbol (abfd) | |
87 | bfd *abfd; | |
88 | { | |
dc810e39 AM |
89 | asymbol *new; |
90 | ||
91 | new = (asymbol *) bfd_zalloc (abfd, (bfd_size_type) sizeof (asymbol)); | |
252b5132 RH |
92 | if (new) |
93 | new->the_bfd = abfd; | |
94 | return new; | |
95 | } | |
96 | ||
97 | static const bfd_target * | |
98 | osf_core_core_file_p (abfd) | |
99 | bfd *abfd; | |
100 | { | |
101 | int val; | |
102 | int i; | |
103 | char *secname; | |
104 | struct core_filehdr core_header; | |
dc810e39 | 105 | bfd_size_type amt; |
252b5132 | 106 | |
dc810e39 AM |
107 | amt = sizeof core_header; |
108 | val = bfd_bread ((PTR) &core_header, amt, abfd); | |
252b5132 RH |
109 | if (val != sizeof core_header) |
110 | return NULL; | |
111 | ||
112 | if (strncmp (core_header.magic, "Core", 4) != 0) | |
113 | return NULL; | |
114 | ||
115 | core_hdr (abfd) = (struct osf_core_struct *) | |
dc810e39 | 116 | bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct)); |
252b5132 RH |
117 | if (!core_hdr (abfd)) |
118 | return NULL; | |
119 | ||
120 | strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1); | |
121 | core_signal (abfd) = core_header.signo; | |
122 | ||
123 | for (i = 0; i < core_header.nscns; i++) | |
124 | { | |
125 | struct core_scnhdr core_scnhdr; | |
126 | flagword flags; | |
127 | ||
dc810e39 AM |
128 | amt = sizeof core_scnhdr; |
129 | val = bfd_bread ((PTR) &core_scnhdr, amt, abfd); | |
252b5132 RH |
130 | if (val != sizeof core_scnhdr) |
131 | break; | |
132 | ||
133 | /* Skip empty sections. */ | |
134 | if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0) | |
135 | continue; | |
136 | ||
137 | switch (core_scnhdr.scntype) | |
138 | { | |
139 | case SCNRGN: | |
140 | secname = ".data"; | |
141 | flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; | |
142 | break; | |
143 | case SCNSTACK: | |
144 | secname = ".stack"; | |
145 | flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS; | |
146 | break; | |
147 | case SCNREGS: | |
148 | secname = ".reg"; | |
149 | flags = SEC_HAS_CONTENTS; | |
150 | break; | |
151 | default: | |
152 | (*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"), | |
153 | core_scnhdr.scntype); | |
154 | continue; | |
155 | } | |
156 | ||
157 | if (!make_bfd_asection (abfd, secname, flags, | |
158 | (bfd_size_type) core_scnhdr.size, | |
159 | (bfd_vma) core_scnhdr.vaddr, | |
160 | (file_ptr) core_scnhdr.scnptr)) | |
161 | return NULL; | |
162 | } | |
163 | ||
164 | /* OK, we believe you. You're a core file (sure, sure). */ | |
165 | ||
166 | return abfd->xvec; | |
167 | } | |
168 | ||
169 | static char * | |
170 | osf_core_core_file_failing_command (abfd) | |
171 | bfd *abfd; | |
172 | { | |
173 | return core_command (abfd); | |
174 | } | |
175 | ||
176 | /* ARGSUSED */ | |
177 | static int | |
178 | osf_core_core_file_failing_signal (abfd) | |
179 | bfd *abfd; | |
180 | { | |
181 | return core_signal (abfd); | |
182 | } | |
183 | ||
184 | /* ARGSUSED */ | |
185 | static boolean | |
186 | osf_core_core_file_matches_executable_p (core_bfd, exec_bfd) | |
dc810e39 AM |
187 | bfd *core_bfd ATTRIBUTE_UNUSED; |
188 | bfd *exec_bfd ATTRIBUTE_UNUSED; | |
252b5132 RH |
189 | { |
190 | return true; /* FIXME, We have no way of telling at this point */ | |
191 | } | |
192 | \f | |
193 | #define osf_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound | |
194 | #define osf_core_get_symtab _bfd_nosymbols_get_symtab | |
195 | #define osf_core_print_symbol _bfd_nosymbols_print_symbol | |
196 | #define osf_core_get_symbol_info _bfd_nosymbols_get_symbol_info | |
197 | #define osf_core_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name | |
198 | #define osf_core_get_lineno _bfd_nosymbols_get_lineno | |
199 | #define osf_core_find_nearest_line _bfd_nosymbols_find_nearest_line | |
200 | #define osf_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol | |
201 | #define osf_core_read_minisymbols _bfd_nosymbols_read_minisymbols | |
202 | #define osf_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol | |
203 | ||
204 | /* If somebody calls any byte-swapping routines, shoot them. */ | |
205 | static void | |
206 | swap_abort() | |
207 | { | |
208 | abort(); /* This way doesn't require any declaration for ANSI to fuck up */ | |
209 | } | |
210 | #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) | |
211 | #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) | |
212 | #define NO_SIGNED_GET \ | |
213 | ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) | |
214 | ||
215 | const bfd_target osf_core_vec = | |
216 | { | |
217 | "osf-core", | |
218 | bfd_target_unknown_flavour, | |
219 | BFD_ENDIAN_BIG, /* target byte order */ | |
220 | BFD_ENDIAN_BIG, /* target headers byte order */ | |
221 | (HAS_RELOC | EXEC_P | /* object flags */ | |
222 | HAS_LINENO | HAS_DEBUG | | |
223 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
224 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ | |
225 | 0, /* symbol prefix */ | |
226 | ' ', /* ar_pad_char */ | |
227 | 16, /* ar_max_namelen */ | |
228 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ | |
229 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ | |
230 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ | |
231 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ | |
232 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ | |
233 | NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ | |
234 | ||
235 | { /* bfd_check_format */ | |
236 | _bfd_dummy_target, /* unknown format */ | |
237 | _bfd_dummy_target, /* object file */ | |
238 | _bfd_dummy_target, /* archive */ | |
239 | osf_core_core_file_p /* a core file */ | |
240 | }, | |
241 | { /* bfd_set_format */ | |
242 | bfd_false, bfd_false, | |
243 | bfd_false, bfd_false | |
244 | }, | |
245 | { /* bfd_write_contents */ | |
246 | bfd_false, bfd_false, | |
247 | bfd_false, bfd_false | |
248 | }, | |
dc810e39 | 249 | |
252b5132 RH |
250 | BFD_JUMP_TABLE_GENERIC (_bfd_generic), |
251 | BFD_JUMP_TABLE_COPY (_bfd_generic), | |
252 | BFD_JUMP_TABLE_CORE (osf_core), | |
253 | BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), | |
254 | BFD_JUMP_TABLE_SYMBOLS (osf_core), | |
255 | BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), | |
256 | BFD_JUMP_TABLE_WRITE (_bfd_generic), | |
257 | BFD_JUMP_TABLE_LINK (_bfd_nolink), | |
258 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
259 | ||
c3c89269 | 260 | NULL, |
dc810e39 | 261 | |
252b5132 RH |
262 | (PTR) 0 /* backend_data */ |
263 | }; |