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
|
/* BFD back end for Lynx core files
Copyright 1993 Free Software Foundation, Inc.
Written by Stu Grossman of 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#ifdef HOST_LYNX /* Core files only work locally for now */
/* These are stored in the bfd's tdata */
struct lynx_core_struct
{
int sig;
char cmd[PNMLEN + 1];
};
#define core_hdr(bfd) ((bfd)->tdata.lynx_core_data)
#define core_signal(bfd) (core_hdr(bfd)->sig)
#define core_command(bfd) (core_hdr(bfd)->cmd)
/* Handle Lynx core dump file. */
static asection *
make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
bfd *abfd;
CONST char *name;
flagword flags;
bfd_size_type _raw_size;
bfd_vma vma;
file_ptr filepos;
{
asection *asect;
char *newname;
newname = bfd_alloc (abfd, strlen (name) + 1);
if (!newname)
return NULL;
strcpy (newname, name);
asect = bfd_make_section (abfd, newname);
if (!asect)
return NULL;
asect->flags = flags;
asect->_raw_size = _raw_size;
asect->vma = vma;
asect->filepos = filepos;
asect->alignment_power = 2;
return asect;
}
/* ARGSUSED */
bfd_target *
lynx_core_file_p (abfd)
bfd *abfd;
{
int val;
int secnum;
struct pssentry pss;
size_t tcontext_size;
core_st_t *threadp;
int pagesize;
asection *newsect;
pagesize = getpagesize (); /* Serious cross-target issue here... This
really needs to come from a system-specific
header file. */
/* Get the pss entry from the core file */
bfd_seek (abfd, 0, SEEK_SET);
val = bfd_read ((void *)&pss, 1, sizeof pss, abfd);
if (val != sizeof pss)
{
/* Too small to be a core file */
bfd_error = wrong_format;
return NULL;
}
core_hdr (abfd) = (struct lynx_core_struct *)
bfd_zalloc (abfd, sizeof (struct lynx_core_struct));
if (!core_hdr (abfd))
{
bfd_error = no_memory;
return NULL;
}
strncpy (core_command (abfd), pss.pname, PNMLEN + 1);
/* Compute the size of the thread contexts */
tcontext_size = pss.threadcnt * sizeof (core_st_t);
/* Allocate space for the thread contexts */
threadp = (core_st_t *)bfd_zalloc (abfd, tcontext_size);
if (!threadp)
{
bfd_error = no_memory;
return NULL;
}
/* Save thread contexts */
bfd_seek (abfd, pagesize, SEEK_SET);
val = bfd_read ((void *)threadp, pss.threadcnt, sizeof (core_st_t), abfd);
if (val != tcontext_size)
{
/* Probably too small to be a core file */
bfd_error = wrong_format;
return NULL;
}
core_signal (abfd) = threadp->currsig;
newsect = make_bfd_asection (abfd, ".stack",
SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
pss.ssize,
pss.slimit,
pagesize + tcontext_size);
if (!newsect)
{
bfd_error = no_memory;
return NULL;
}
newsect = make_bfd_asection (abfd, ".data",
SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
pss.data_len + pss.bss_len,
pss.data_start,
pagesize + tcontext_size + pss.ssize);
if (!newsect)
{
bfd_error = no_memory;
return NULL;
}
for (secnum = 0; secnum < pss.threadcnt; secnum++)
{
char secname[100];
sprintf (secname, ".reg%d", threadp[secnum].tid);
newsect = make_bfd_asection (abfd, secname,
SEC_ALLOC + SEC_HAS_CONTENTS,
sizeof (core_st_t),
0,
pagesize + secnum * sizeof (core_st_t));
if (!newsect)
{
bfd_error = no_memory;
return NULL;
}
}
return abfd->xvec;
}
char *
lynx_core_file_failing_command (abfd)
bfd *abfd;
{
return core_command (abfd);
}
/* ARGSUSED */
int
lynx_core_file_failing_signal (abfd)
bfd *abfd;
{
return core_signal (abfd);
}
/* ARGSUSED */
boolean
lynx_core_file_matches_executable_p (core_bfd, exec_bfd)
bfd *core_bfd, *exec_bfd;
{
return true; /* FIXME, We have no way of telling at this point */
}
#endif /* HOST_LYNX */
|
