daily update
[binutils.git] / bfd / netbsd-core.c
blob7498990a4efec04684cec724a9e3512151d143e8
1 /* BFD back end for NetBSD style core files
2 Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001,
3 2002
4 Free Software Foundation, Inc.
5 Written by Paul Kranenburg, EUR
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #include "bfd.h"
24 #include "sysdep.h"
25 #include "libbfd.h"
26 #include "libaout.h" /* BFD a.out internal data structures */
28 #include <sys/param.h>
29 #include <sys/dir.h>
30 #include <signal.h>
31 #include <sys/core.h>
34 * FIXME: On NetBSD/sparc CORE_FPU_OFFSET should be (sizeof (struct trapframe))
37 struct netbsd_core_struct {
38 struct core core;
39 } *rawptr;
41 /* forward declarations */
43 static const bfd_target *netbsd_core_file_p
44 PARAMS ((bfd *abfd));
45 static char *netbsd_core_file_failing_command
46 PARAMS ((bfd *abfd));
47 static int netbsd_core_file_failing_signal
48 PARAMS ((bfd *abfd));
49 static bfd_boolean netbsd_core_file_matches_executable_p
50 PARAMS ((bfd *core_bfd, bfd *exec_bfd));
51 static void swap_abort
52 PARAMS ((void));
54 /* Handle NetBSD-style core dump file. */
56 static const bfd_target *
57 netbsd_core_file_p (abfd)
58 bfd *abfd;
61 int i, val;
62 file_ptr offset;
63 asection *asect, *asect2;
64 struct core core;
65 struct coreseg coreseg;
66 bfd_size_type amt = sizeof core;
68 val = bfd_bread ((void *) &core, amt, abfd);
69 if (val != sizeof core)
71 /* Too small to be a core file */
72 bfd_set_error (bfd_error_wrong_format);
73 return 0;
76 if (CORE_GETMAGIC (core) != COREMAGIC)
78 bfd_set_error (bfd_error_wrong_format);
79 return 0;
82 amt = sizeof (struct netbsd_core_struct);
83 rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
84 if (rawptr == NULL)
85 return 0;
87 rawptr->core = core;
88 abfd->tdata.netbsd_core_data = rawptr;
90 offset = core.c_hdrsize;
91 for (i = 0; i < core.c_nseg; i++)
93 const char *sname;
94 flagword flags;
96 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
97 goto punt;
99 val = bfd_bread ((void *) &coreseg, (bfd_size_type) sizeof coreseg, abfd);
100 if (val != sizeof coreseg)
102 bfd_set_error (bfd_error_file_truncated);
103 goto punt;
105 if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
107 bfd_set_error (bfd_error_wrong_format);
108 goto punt;
111 offset += core.c_seghdrsize;
113 switch (CORE_GETFLAG (coreseg))
115 case CORE_CPU:
116 sname = ".reg";
117 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
118 break;
119 case CORE_DATA:
120 sname = ".data";
121 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
122 break;
123 case CORE_STACK:
124 sname = ".stack";
125 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
126 break;
127 default:
128 sname = ".unknown";
129 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
130 break;
132 asect = bfd_make_section_anyway (abfd, sname);
133 if (asect == NULL)
134 goto punt;
136 asect->flags = flags;
137 asect->_raw_size = coreseg.c_size;
138 asect->vma = coreseg.c_addr;
139 asect->filepos = offset;
140 asect->alignment_power = 2;
142 offset += coreseg.c_size;
144 #ifdef CORE_FPU_OFFSET
145 switch (CORE_GETFLAG (coreseg))
147 case CORE_CPU:
148 /* Hackish... */
149 asect->_raw_size = CORE_FPU_OFFSET;
150 asect2 = bfd_make_section_anyway (abfd, ".reg2");
151 if (asect2 == NULL)
152 goto punt;
153 asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET;
154 asect2->vma = 0;
155 asect2->filepos = asect->filepos + CORE_FPU_OFFSET;
156 asect2->alignment_power = 2;
157 asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
158 break;
160 #endif
163 /* OK, we believe you. You're a core file (sure, sure). */
164 return abfd->xvec;
166 punt:
167 bfd_release (abfd, abfd->tdata.any);
168 abfd->tdata.any = NULL;
169 bfd_section_list_clear (abfd);
170 return 0;
173 static char*
174 netbsd_core_file_failing_command (abfd)
175 bfd *abfd;
177 /*return core_command (abfd);*/
178 return abfd->tdata.netbsd_core_data->core.c_name;
181 static int
182 netbsd_core_file_failing_signal (abfd)
183 bfd *abfd;
185 /*return core_signal (abfd);*/
186 return abfd->tdata.netbsd_core_data->core.c_signo;
189 static bfd_boolean
190 netbsd_core_file_matches_executable_p (core_bfd, exec_bfd)
191 bfd *core_bfd ATTRIBUTE_UNUSED;
192 bfd *exec_bfd ATTRIBUTE_UNUSED;
194 return TRUE; /* FIXME, We have no way of telling at this point */
197 /* If somebody calls any byte-swapping routines, shoot them. */
198 static void
199 swap_abort ()
201 abort (); /* This way doesn't require any declaration for ANSI to fuck up */
203 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
204 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
205 #define NO_SIGNED_GET \
206 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
208 const bfd_target netbsd_core_vec =
210 "netbsd-core",
211 bfd_target_unknown_flavour,
212 BFD_ENDIAN_UNKNOWN, /* target byte order */
213 BFD_ENDIAN_UNKNOWN, /* target headers byte order */
214 (HAS_RELOC | EXEC_P | /* object flags */
215 HAS_LINENO | HAS_DEBUG |
216 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
217 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
218 0, /* symbol prefix */
219 ' ', /* ar_pad_char */
220 16, /* ar_max_namelen */
221 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
222 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
223 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
224 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
225 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
226 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
228 { /* bfd_check_format */
229 _bfd_dummy_target, /* unknown format */
230 _bfd_dummy_target, /* object file */
231 _bfd_dummy_target, /* archive */
232 netbsd_core_file_p /* a core file */
234 { /* bfd_set_format */
235 bfd_false, bfd_false,
236 bfd_false, bfd_false
238 { /* bfd_write_contents */
239 bfd_false, bfd_false,
240 bfd_false, bfd_false
243 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
244 BFD_JUMP_TABLE_COPY (_bfd_generic),
245 BFD_JUMP_TABLE_CORE (netbsd),
246 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
247 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
248 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
249 BFD_JUMP_TABLE_WRITE (_bfd_generic),
250 BFD_JUMP_TABLE_LINK (_bfd_nolink),
251 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
253 NULL,
255 (PTR) 0 /* backend_data */