1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
|
/* BFD back-end for Irix core files.
Copyright (C) 1993-2022 Free Software Foundation, Inc.
Written by Stu Grossman, Cygnus Support.
Converted to back-end form by Ian Lance Taylor, Cygnus Support
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
/* This file can only be compiled on systems which use Irix style core
files (namely, Irix 4 and Irix 5, so far). */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#ifdef IRIX_CORE
#include <core.out.h>
struct sgi_core_struct
{
int sig;
char cmd[CORE_NAMESIZE];
};
#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
#define core_signal(bfd) (core_hdr(bfd)->sig)
#define core_command(bfd) (core_hdr(bfd)->cmd)
#define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
#define irix_core_core_file_pid _bfd_nocore_core_file_pid
static asection *make_bfd_asection
(bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
/* Helper function for irix_core_core_file_p:
32-bit and 64-bit versions. */
#ifdef CORE_MAGIC64
static int
do_sections64 (bfd *abfd, struct coreout *coreout)
{
struct vmap64 vmap;
char *secname;
int i, val;
for (i = 0; i < coreout->c_nvmap; i++)
{
val = bfd_bread (&vmap, (bfd_size_type) sizeof vmap, abfd);
if (val != sizeof vmap)
break;
switch (vmap.v_type)
{
case VDATA:
secname = ".data";
break;
case VSTACK:
secname = ".stack";
break;
#ifdef VMAPFILE
case VMAPFILE:
secname = ".mapfile";
break;
#endif
default:
continue;
}
/* A file offset of zero means that the
section is not contained in the corefile. */
if (vmap.v_offset == 0)
continue;
if (!make_bfd_asection (abfd, secname,
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
vmap.v_len, vmap.v_vaddr, vmap.v_offset))
/* Fail. */
return 0;
}
return 1;
}
#endif
/* 32-bit version. */
static int
do_sections (bfd *abfd, struct coreout *coreout)
{
struct vmap vmap;
char *secname;
int i, val;
for (i = 0; i < coreout->c_nvmap; i++)
{
val = bfd_bread (&vmap, (bfd_size_type) sizeof vmap, abfd);
if (val != sizeof vmap)
break;
switch (vmap.v_type)
{
case VDATA:
secname = ".data";
break;
case VSTACK:
secname = ".stack";
break;
#ifdef VMAPFILE
case VMAPFILE:
secname = ".mapfile";
break;
#endif
default:
continue;
}
/* A file offset of zero means that the
section is not contained in the corefile. */
if (vmap.v_offset == 0)
continue;
if (!make_bfd_asection (abfd, secname,
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
vmap.v_len, vmap.v_vaddr, vmap.v_offset))
/* Fail. */
return 0;
}
return 1;
}
static asection *
make_bfd_asection (bfd *abfd,
const char *name,
flagword flags,
bfd_size_type size,
bfd_vma vma,
file_ptr filepos)
{
asection *asect;
asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
if (!asect)
return NULL;
asect->size = size;
asect->vma = vma;
asect->filepos = filepos;
asect->alignment_power = 4;
return asect;
}
static bfd_cleanup
irix_core_core_file_p (bfd *abfd)
{
int val;
struct coreout coreout;
struct idesc *idg, *idf, *ids;
size_t amt;
val = bfd_bread (&coreout, (bfd_size_type) sizeof coreout, abfd);
if (val != sizeof coreout)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return 0;
}
if (coreout.c_version != CORE_VERSION1)
return 0;
/* Have we got a corefile? */
switch (coreout.c_magic)
{
case CORE_MAGIC: break;
#ifdef CORE_MAGIC64
case CORE_MAGIC64: break;
#endif
#ifdef CORE_MAGICN32
case CORE_MAGICN32: break;
#endif
default: return 0; /* Un-identifiable or not corefile. */
}
amt = sizeof (struct sgi_core_struct);
core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
if (!core_hdr (abfd))
return NULL;
strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
core_signal (abfd) = coreout.c_sigcause;
if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
goto fail;
/* Process corefile sections. */
#ifdef CORE_MAGIC64
if (coreout.c_magic == (int) CORE_MAGIC64)
{
if (! do_sections64 (abfd, & coreout))
goto fail;
}
else
#endif
if (! do_sections (abfd, & coreout))
goto fail;
/* Make sure that the regs are contiguous within the core file. */
idg = &coreout.c_idesc[I_GPREGS];
idf = &coreout.c_idesc[I_FPREGS];
ids = &coreout.c_idesc[I_SPECREGS];
if (idg->i_offset + idg->i_len != idf->i_offset
|| idf->i_offset + idf->i_len != ids->i_offset)
goto fail; /* Can't deal with non-contig regs */
if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
goto fail;
if (!make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
idg->i_len + idf->i_len + ids->i_len,
0,
idg->i_offset))
goto fail;
/* OK, we believe you. You're a core file (sure, sure). */
bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
return _bfd_no_cleanup;
fail:
bfd_release (abfd, core_hdr (abfd));
core_hdr (abfd) = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
static char *
irix_core_core_file_failing_command (bfd *abfd)
{
return core_command (abfd);
}
static int
irix_core_core_file_failing_signal (bfd *abfd)
{
return core_signal (abfd);
}
/* If somebody calls any byte-swapping routines, shoot them. */
static void
swap_abort(void)
{
abort(); /* This way doesn't require any declaration for ANSI to fuck up */
}
#define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
#define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
#define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
#define NO_GET64 ((uint64_t (*) (const void *)) swap_abort)
#define NO_PUT64 ((void (*) (uint64_t, void *)) swap_abort)
#define NO_GETS64 ((int64_t (*) (const void *)) swap_abort)
const bfd_target core_irix_vec =
{
"irix-core",
bfd_target_unknown_flavour,
BFD_ENDIAN_BIG, /* target byte order */
BFD_ENDIAN_BIG, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
0, /* symbol prefix */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
0, /* match_priority */
TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
{ /* bfd_check_format */
_bfd_dummy_target, /* unknown format */
_bfd_dummy_target, /* object file */
_bfd_dummy_target, /* archive */
irix_core_core_file_p /* a core file */
},
{ /* bfd_set_format */
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error
},
{ /* bfd_write_contents */
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error,
_bfd_bool_bfd_false_error
},
BFD_JUMP_TABLE_GENERIC (_bfd_generic),
BFD_JUMP_TABLE_COPY (_bfd_generic),
BFD_JUMP_TABLE_CORE (irix_core),
BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
BFD_JUMP_TABLE_WRITE (_bfd_generic),
BFD_JUMP_TABLE_LINK (_bfd_nolink),
BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
NULL,
NULL /* backend_data */
};
#endif /* IRIX_CORE */
|
