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[binutils.git] / bfd / netbsd-core.c
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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 /* ARGSUSED */
57 static const bfd_target *
58 netbsd_core_file_p (abfd)
59 bfd *abfd;
62 int i, val;
63 file_ptr offset;
64 asection *asect, *asect2;
65 struct core core;
66 struct coreseg coreseg;
67 bfd_size_type amt = sizeof core;
69 val = bfd_bread ((void *) &core, amt, abfd);
70 if (val != sizeof core)
72 /* Too small to be a core file */
73 bfd_set_error (bfd_error_wrong_format);
74 return 0;
77 if (CORE_GETMAGIC (core) != COREMAGIC)
79 bfd_set_error (bfd_error_wrong_format);
80 return 0;
83 amt = sizeof (struct netbsd_core_struct);
84 rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
85 if (rawptr == NULL)
86 return 0;
88 rawptr->core = core;
89 abfd->tdata.netbsd_core_data = rawptr;
91 offset = core.c_hdrsize;
92 for (i = 0; i < core.c_nseg; i++)
94 const char *sname;
95 flagword flags;
97 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
98 goto punt;
100 val = bfd_bread ((void *) &coreseg, (bfd_size_type) sizeof coreseg, abfd);
101 if (val != sizeof coreseg)
103 bfd_set_error (bfd_error_file_truncated);
104 goto punt;
106 if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
108 bfd_set_error (bfd_error_wrong_format);
109 goto punt;
112 offset += core.c_seghdrsize;
114 switch (CORE_GETFLAG (coreseg))
116 case CORE_CPU:
117 sname = ".reg";
118 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
119 break;
120 case CORE_DATA:
121 sname = ".data";
122 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
123 break;
124 case CORE_STACK:
125 sname = ".stack";
126 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
127 break;
128 default:
129 sname = ".unknown";
130 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
131 break;
133 asect = bfd_make_section_anyway (abfd, sname);
134 if (asect == NULL)
135 goto punt;
137 asect->flags = flags;
138 asect->_raw_size = coreseg.c_size;
139 asect->vma = coreseg.c_addr;
140 asect->filepos = offset;
141 asect->alignment_power = 2;
143 offset += coreseg.c_size;
145 #ifdef CORE_FPU_OFFSET
146 switch (CORE_GETFLAG (coreseg))
148 case CORE_CPU:
149 /* Hackish... */
150 asect->_raw_size = CORE_FPU_OFFSET;
151 asect2 = bfd_make_section_anyway (abfd, ".reg2");
152 if (asect2 == NULL)
153 goto punt;
154 asect2->_raw_size = coreseg.c_size - CORE_FPU_OFFSET;
155 asect2->vma = 0;
156 asect2->filepos = asect->filepos + CORE_FPU_OFFSET;
157 asect2->alignment_power = 2;
158 asect2->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
159 break;
161 #endif
164 /* OK, we believe you. You're a core file (sure, sure). */
165 return abfd->xvec;
167 punt:
168 bfd_release (abfd, abfd->tdata.any);
169 abfd->tdata.any = NULL;
170 bfd_section_list_clear (abfd);
171 return 0;
174 static char*
175 netbsd_core_file_failing_command (abfd)
176 bfd *abfd;
178 /*return core_command (abfd);*/
179 return abfd->tdata.netbsd_core_data->core.c_name;
182 /* ARGSUSED */
183 static int
184 netbsd_core_file_failing_signal (abfd)
185 bfd *abfd;
187 /*return core_signal (abfd);*/
188 return abfd->tdata.netbsd_core_data->core.c_signo;
191 /* ARGSUSED */
192 static bfd_boolean
193 netbsd_core_file_matches_executable_p (core_bfd, exec_bfd)
194 bfd *core_bfd ATTRIBUTE_UNUSED;
195 bfd *exec_bfd ATTRIBUTE_UNUSED;
197 return TRUE; /* FIXME, We have no way of telling at this point */
200 /* If somebody calls any byte-swapping routines, shoot them. */
201 static void
202 swap_abort ()
204 abort (); /* This way doesn't require any declaration for ANSI to fuck up */
206 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
207 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
208 #define NO_SIGNED_GET \
209 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
211 const bfd_target netbsd_core_vec =
213 "netbsd-core",
214 bfd_target_unknown_flavour,
215 BFD_ENDIAN_UNKNOWN, /* target byte order */
216 BFD_ENDIAN_UNKNOWN, /* target headers byte order */
217 (HAS_RELOC | EXEC_P | /* object flags */
218 HAS_LINENO | HAS_DEBUG |
219 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
220 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
221 0, /* symbol prefix */
222 ' ', /* ar_pad_char */
223 16, /* ar_max_namelen */
224 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
225 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
226 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
227 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
228 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
229 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
231 { /* bfd_check_format */
232 _bfd_dummy_target, /* unknown format */
233 _bfd_dummy_target, /* object file */
234 _bfd_dummy_target, /* archive */
235 netbsd_core_file_p /* a core file */
237 { /* bfd_set_format */
238 bfd_false, bfd_false,
239 bfd_false, bfd_false
241 { /* bfd_write_contents */
242 bfd_false, bfd_false,
243 bfd_false, bfd_false
246 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
247 BFD_JUMP_TABLE_COPY (_bfd_generic),
248 BFD_JUMP_TABLE_CORE (netbsd),
249 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
250 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
251 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
252 BFD_JUMP_TABLE_WRITE (_bfd_generic),
253 BFD_JUMP_TABLE_LINK (_bfd_nolink),
254 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
256 NULL,
258 (PTR) 0 /* backend_data */