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[binutils.git] / bfd / osf-core.c
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1 /* BFD back-end for OSF/1 core files.
2 Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002, 2003, 2004, 2005, 2006,
3 2007 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
23 /* This file can only be compiled on systems which use OSF/1 style
24 core files. */
26 #include "sysdep.h"
27 #include "bfd.h"
28 #include "libbfd.h"
30 #include <sys/user.h>
31 #ifdef OSF_CORE
32 #include <sys/core.h>
33 #endif
35 /* forward declarations */
37 static asection *make_bfd_asection
38 PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr));
39 static const bfd_target *osf_core_core_file_p
40 PARAMS ((bfd *));
41 static char *osf_core_core_file_failing_command
42 PARAMS ((bfd *));
43 static int osf_core_core_file_failing_signal
44 PARAMS ((bfd *));
45 #define osf_core_core_file_matches_executable_p generic_core_file_matches_executable_p
46 #define osf_core_core_file_pid _bfd_nocore_core_file_pid
47 static void swap_abort
48 PARAMS ((void));
50 /* These are stored in the bfd's tdata */
52 struct osf_core_struct
54 int sig;
55 char cmd[MAXCOMLEN + 1];
58 #define core_hdr(bfd) ((bfd)->tdata.osf_core_data)
59 #define core_signal(bfd) (core_hdr(bfd)->sig)
60 #define core_command(bfd) (core_hdr(bfd)->cmd)
62 static asection *
63 make_bfd_asection (abfd, name, flags, size, vma, filepos)
64 bfd *abfd;
65 const char *name;
66 flagword flags;
67 bfd_size_type size;
68 bfd_vma vma;
69 file_ptr filepos;
71 asection *asect;
73 asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
74 if (!asect)
75 return NULL;
77 asect->size = size;
78 asect->vma = vma;
79 asect->filepos = filepos;
80 asect->alignment_power = 8;
82 return asect;
85 static const bfd_target *
86 osf_core_core_file_p (abfd)
87 bfd *abfd;
89 int val;
90 int i;
91 char *secname;
92 struct core_filehdr core_header;
93 bfd_size_type amt;
95 amt = sizeof core_header;
96 val = bfd_bread ((PTR) &core_header, amt, abfd);
97 if (val != sizeof core_header)
98 return NULL;
100 if (! CONST_STRNEQ (core_header.magic, "Core"))
101 return NULL;
103 core_hdr (abfd) = (struct osf_core_struct *)
104 bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct));
105 if (!core_hdr (abfd))
106 return NULL;
108 strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
109 core_signal (abfd) = core_header.signo;
111 for (i = 0; i < core_header.nscns; i++)
113 struct core_scnhdr core_scnhdr;
114 flagword flags;
116 amt = sizeof core_scnhdr;
117 val = bfd_bread ((PTR) &core_scnhdr, amt, abfd);
118 if (val != sizeof core_scnhdr)
119 break;
121 /* Skip empty sections. */
122 if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0)
123 continue;
125 switch (core_scnhdr.scntype)
127 case SCNRGN:
128 secname = ".data";
129 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
130 break;
131 case SCNSTACK:
132 secname = ".stack";
133 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
134 break;
135 case SCNREGS:
136 secname = ".reg";
137 flags = SEC_HAS_CONTENTS;
138 break;
139 default:
140 (*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
141 core_scnhdr.scntype);
142 continue;
145 if (!make_bfd_asection (abfd, secname, flags,
146 (bfd_size_type) core_scnhdr.size,
147 (bfd_vma) core_scnhdr.vaddr,
148 (file_ptr) core_scnhdr.scnptr))
149 goto fail;
152 /* OK, we believe you. You're a core file (sure, sure). */
154 return abfd->xvec;
156 fail:
157 bfd_release (abfd, core_hdr (abfd));
158 core_hdr (abfd) = NULL;
159 bfd_section_list_clear (abfd);
160 return NULL;
163 static char *
164 osf_core_core_file_failing_command (abfd)
165 bfd *abfd;
167 return core_command (abfd);
170 static int
171 osf_core_core_file_failing_signal (abfd)
172 bfd *abfd;
174 return core_signal (abfd);
177 /* If somebody calls any byte-swapping routines, shoot them. */
178 static void
179 swap_abort()
181 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
184 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
185 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
186 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
187 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
188 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
189 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
191 const bfd_target osf_core_vec =
193 "osf-core",
194 bfd_target_unknown_flavour,
195 BFD_ENDIAN_LITTLE, /* target byte order */
196 BFD_ENDIAN_LITTLE, /* target headers byte order */
197 (HAS_RELOC | EXEC_P | /* object flags */
198 HAS_LINENO | HAS_DEBUG |
199 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
200 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
201 0, /* symbol prefix */
202 ' ', /* ar_pad_char */
203 16, /* ar_max_namelen */
204 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
205 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
206 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
207 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
208 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
209 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
211 { /* bfd_check_format */
212 _bfd_dummy_target, /* unknown format */
213 _bfd_dummy_target, /* object file */
214 _bfd_dummy_target, /* archive */
215 osf_core_core_file_p /* a core file */
217 { /* bfd_set_format */
218 bfd_false, bfd_false,
219 bfd_false, bfd_false
221 { /* bfd_write_contents */
222 bfd_false, bfd_false,
223 bfd_false, bfd_false
226 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
227 BFD_JUMP_TABLE_COPY (_bfd_generic),
228 BFD_JUMP_TABLE_CORE (osf_core),
229 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
230 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
231 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
232 BFD_JUMP_TABLE_WRITE (_bfd_generic),
233 BFD_JUMP_TABLE_LINK (_bfd_nolink),
234 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
236 NULL,
238 (PTR) 0 /* backend_data */