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
|
/* BFD back-end for HPPA BSD core files.
Copyright (C) 1993-2023 Free Software Foundation, Inc.
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.
Written by the Center for Software Science at the University of Utah
and by Cygnus Support.
The core file structure for the Utah 4.3BSD and OSF1 ports on the
PA is a mix between traditional cores and hpux cores -- just
different enough that supporting this format would tend to add
gross hacks to trad-core.c or hpux-core.c. So instead we keep any
gross hacks isolated to this file. */
/* This file can only be compiled on systems which use HPPA-BSD style
core files.
I would not expect this to be of use to any other host/target, but
you never know. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#if defined (HOST_HPPABSD)
#include "machine/vmparam.h"
#include <sys/param.h>
#include <sys/dir.h>
#include <signal.h>
#include <machine/reg.h>
#include <sys/user.h> /* After a.out.h */
#include <sys/file.h>
#define hppabsd_core_core_file_matches_executable_p generic_core_file_matches_executable_p
#define hppabsd_core_core_file_pid _bfd_nocore_core_file_pid
/* These are stored in the bfd's tdata. */
struct hppabsd_core_struct
{
int sig;
char cmd[MAXCOMLEN + 1];
asection *data_section;
asection *stack_section;
asection *reg_section;
};
#define core_hdr(bfd) ((bfd)->tdata.hppabsd_core_data)
#define core_signal(bfd) (core_hdr(bfd)->sig)
#define core_command(bfd) (core_hdr(bfd)->cmd)
#define core_datasec(bfd) (core_hdr(bfd)->data_section)
#define core_stacksec(bfd) (core_hdr(bfd)->stack_section)
#define core_regsec(bfd) (core_hdr(bfd)->reg_section)
static asection *
make_bfd_asection (bfd *abfd,
const char *name,
flagword flags,
bfd_size_type size,
file_ptr offset,
unsigned int alignment_power)
{
asection *asect;
asect = bfd_make_section_with_flags (abfd, name, flags);
if (!asect)
return NULL;
asect->size = size;
asect->filepos = offset;
asect->alignment_power = alignment_power;
return asect;
}
static bfd_cleanup
hppabsd_core_core_file_p (bfd *abfd)
{
int val;
struct user u;
struct hppabsd_core_struct *coredata;
int clicksz;
/* Try to read in the u-area. We will need information from this
to know how to grok the rest of the core structures. */
val = bfd_bread ((void *) &u, (bfd_size_type) sizeof u, abfd);
if (val != sizeof u)
{
if (bfd_get_error () != bfd_error_system_call)
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Get the page size out of the u structure. This will be different
for PA 1.0 machines and PA 1.1 machines. Yuk! */
clicksz = u.u_pcb.pcb_pgsz;
/* clicksz must be a power of two >= 2k. */
if (clicksz < 0x800
|| clicksz != (clicksz & -clicksz))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
/* Sanity checks. Make sure the size of the core file matches the
the size computed from information within the core itself. */
{
struct stat statbuf;
if (bfd_stat (abfd, &statbuf) < 0)
return NULL;
if (NBPG * (UPAGES + u.u_dsize + u.u_ssize) > statbuf.st_size)
{
bfd_set_error (bfd_error_file_truncated);
return NULL;
}
if (clicksz * (UPAGES + u.u_dsize + u.u_ssize) < statbuf.st_size)
{
/* The file is too big. Maybe it's not a core file
or we otherwise have bad values for u_dsize and u_ssize). */
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
}
/* OK, we believe you. You're a core file (sure, sure). */
coredata = (struct hppabsd_core_struct *)
bfd_zalloc (abfd, (bfd_size_type) sizeof (struct hppabsd_core_struct));
if (!coredata)
return NULL;
/* Make the core data and available via the tdata part of the BFD. */
abfd->tdata.hppabsd_core_data = coredata;
/* Create the sections. */
core_stacksec (abfd) = make_bfd_asection (abfd, ".stack",
SEC_ALLOC + SEC_HAS_CONTENTS,
clicksz * u.u_ssize,
NBPG * (USIZE + KSTAKSIZE)
+ clicksz * u.u_dsize, 2);
if (core_stacksec (abfd) == NULL)
goto fail;
core_stacksec (abfd)->vma = USRSTACK;
core_datasec (abfd) = make_bfd_asection (abfd, ".data",
SEC_ALLOC + SEC_LOAD
+ SEC_HAS_CONTENTS,
clicksz * u.u_dsize,
NBPG * (USIZE + KSTAKSIZE), 2);
if (core_datasec (abfd) == NULL)
goto fail;
core_datasec (abfd)->vma = UDATASEG;
core_regsec (abfd) = make_bfd_asection (abfd, ".reg",
SEC_HAS_CONTENTS,
KSTAKSIZE * NBPG,
NBPG * USIZE, 2);
if (core_regsec (abfd) == NULL)
goto fail;
core_regsec (abfd)->vma = 0;
strncpy (core_command (abfd), u.u_comm, MAXCOMLEN + 1);
core_signal (abfd) = u.u_code;
return _bfd_no_cleanup;
fail:
bfd_release (abfd, abfd->tdata.any);
abfd->tdata.any = NULL;
bfd_section_list_clear (abfd);
return NULL;
}
static char *
hppabsd_core_core_file_failing_command (bfd *abfd)
{
return core_command (abfd);
}
static int
hppabsd_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)
{
/* This way doesn't require any declaration for ANSI to fuck up. */
abort ();
}
#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_hppabsd_vec =
{
"hppabsd-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 */
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 */
hppabsd_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 (hppabsd_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
|
