merge from gcc
[gdb/gnu.git] / bfd / netbsd-core.c
blob695d3f5ba6a758c8e79e7a74fda5cc94d5466db8
1 /* BFD back end for NetBSD style core files
2 Copyright 1988, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2012
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 3 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., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "libbfd.h"
27 #include "libaout.h" /* BFD a.out internal data structures. */
29 #include <sys/param.h>
30 #include <sys/dir.h>
31 #include <signal.h>
32 #include <sys/core.h>
34 /* The machine ID for OpenBSD/sparc64 and older versions of
35 NetBSD/sparc64 overlaps with M_MIPS1. */
36 #define M_SPARC64_OPENBSD M_MIPS1
38 /* Offset of StackGhost cookie within `struct md_coredump' on
39 OpenBSD/sparc. */
40 #define SPARC_WCOOKIE_OFFSET 344
42 /* Offset of StackGhost cookie within `struct md_coredump' on
43 OpenBSD/sparc64. */
44 #define SPARC64_WCOOKIE_OFFSET 832
46 #define netbsd_core_file_matches_executable_p generic_core_file_matches_executable_p
47 #define netbsd_core_file_pid _bfd_nocore_core_file_pid
49 struct netbsd_core_struct
51 struct core core;
52 } *rawptr;
54 /* Handle NetBSD-style core dump file. */
56 static const bfd_target *
57 netbsd_core_file_p (bfd *abfd)
59 int val;
60 unsigned i;
61 file_ptr offset;
62 asection *asect;
63 struct core core;
64 struct coreseg coreseg;
65 bfd_size_type amt = sizeof core;
67 val = bfd_bread (&core, amt, abfd);
68 if (val != sizeof core)
70 /* Too small to be a core file. */
71 bfd_set_error (bfd_error_wrong_format);
72 return 0;
75 if (CORE_GETMAGIC (core) != COREMAGIC)
77 bfd_set_error (bfd_error_wrong_format);
78 return 0;
81 amt = sizeof (struct netbsd_core_struct);
82 rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
83 if (rawptr == NULL)
84 return 0;
86 rawptr->core = core;
87 abfd->tdata.netbsd_core_data = rawptr;
89 offset = core.c_hdrsize;
90 for (i = 0; i < core.c_nseg; i++)
92 const char *sname;
93 flagword flags;
95 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
96 goto punt;
98 val = bfd_bread (&coreseg, sizeof coreseg, abfd);
99 if (val != sizeof coreseg)
101 bfd_set_error (bfd_error_file_truncated);
102 goto punt;
104 if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
106 bfd_set_error (bfd_error_wrong_format);
107 goto punt;
110 offset += core.c_seghdrsize;
112 switch (CORE_GETFLAG (coreseg))
114 case CORE_CPU:
115 sname = ".reg";
116 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
117 break;
118 case CORE_DATA:
119 sname = ".data";
120 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
121 break;
122 case CORE_STACK:
123 sname = ".stack";
124 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
125 break;
126 default:
127 sname = ".unknown";
128 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
129 break;
131 asect = bfd_make_section_anyway_with_flags (abfd, sname, flags);
132 if (asect == NULL)
133 goto punt;
135 asect->size = coreseg.c_size;
136 asect->vma = coreseg.c_addr;
137 asect->filepos = offset;
138 asect->alignment_power = 2;
140 if (CORE_GETFLAG (coreseg) == CORE_CPU)
142 bfd_size_type wcookie_offset;
144 switch (CORE_GETMID (core))
146 case M_SPARC_NETBSD:
147 wcookie_offset = SPARC_WCOOKIE_OFFSET;
148 break;
149 case M_SPARC64_OPENBSD:
150 wcookie_offset = SPARC64_WCOOKIE_OFFSET;
151 break;
152 default:
153 wcookie_offset = 0;
154 break;
157 if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
159 /* Truncate the .reg section. */
160 asect->size = wcookie_offset;
162 /* And create the .wcookie section. */
163 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
164 asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
165 flags);
166 if (asect == NULL)
167 goto punt;
169 asect->size = coreseg.c_size - wcookie_offset;
170 asect->vma = 0;
171 asect->filepos = offset + wcookie_offset;
172 asect->alignment_power = 2;
176 offset += coreseg.c_size;
179 /* Set architecture from machine ID. */
180 switch (CORE_GETMID (core))
182 case M_ALPHA_NETBSD:
183 bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
184 break;
186 case M_ARM6_NETBSD:
187 bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
188 break;
190 case M_X86_64_NETBSD:
191 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
192 break;
194 case M_386_NETBSD:
195 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
196 break;
198 case M_68K_NETBSD:
199 case M_68K4K_NETBSD:
200 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
201 break;
203 case M_88K_OPENBSD:
204 bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
205 break;
207 case M_HPPA_OPENBSD:
208 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
209 break;
211 case M_POWERPC_NETBSD:
212 bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
213 break;
215 case M_SPARC_NETBSD:
216 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
217 break;
219 case M_SPARC64_NETBSD:
220 case M_SPARC64_OPENBSD:
221 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
222 break;
224 case M_VAX_NETBSD:
225 case M_VAX4K_NETBSD:
226 bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
227 break;
230 /* OK, we believe you. You're a core file (sure, sure). */
231 return abfd->xvec;
233 punt:
234 bfd_release (abfd, abfd->tdata.any);
235 abfd->tdata.any = NULL;
236 bfd_section_list_clear (abfd);
237 return 0;
240 static char*
241 netbsd_core_file_failing_command (bfd *abfd)
243 /*return core_command (abfd);*/
244 return abfd->tdata.netbsd_core_data->core.c_name;
247 static int
248 netbsd_core_file_failing_signal (bfd *abfd)
250 /*return core_signal (abfd);*/
251 return abfd->tdata.netbsd_core_data->core.c_signo;
254 /* If somebody calls any byte-swapping routines, shoot them. */
256 static void
257 swap_abort (void)
259 /* This way doesn't require any declaration for ANSI to fuck up. */
260 abort ();
263 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
264 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
265 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
266 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
267 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
268 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
270 const bfd_target netbsd_core_vec =
272 "netbsd-core",
273 bfd_target_unknown_flavour,
274 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
275 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
276 (HAS_RELOC | EXEC_P | /* Object flags. */
277 HAS_LINENO | HAS_DEBUG |
278 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
279 (SEC_HAS_CONTENTS | /* Section flags. */
280 SEC_ALLOC | SEC_LOAD | SEC_RELOC),
281 0, /* Symbol prefix. */
282 ' ', /* ar_pad_char. */
283 16, /* ar_max_namelen. */
284 0, /* Match priority. */
285 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data. */
286 NO_GET, NO_GETS, NO_PUT, /* 32 bit data. */
287 NO_GET, NO_GETS, NO_PUT, /* 16 bit data. */
288 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs. */
289 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs. */
290 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs. */
292 { /* bfd_check_format. */
293 _bfd_dummy_target, /* Unknown format. */
294 _bfd_dummy_target, /* Object file. */
295 _bfd_dummy_target, /* Archive. */
296 netbsd_core_file_p /* A core file. */
298 { /* bfd_set_format. */
299 bfd_false, bfd_false,
300 bfd_false, bfd_false
302 { /* bfd_write_contents. */
303 bfd_false, bfd_false,
304 bfd_false, bfd_false
307 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
308 BFD_JUMP_TABLE_COPY (_bfd_generic),
309 BFD_JUMP_TABLE_CORE (netbsd),
310 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
311 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
312 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
313 BFD_JUMP_TABLE_WRITE (_bfd_generic),
314 BFD_JUMP_TABLE_LINK (_bfd_nolink),
315 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
317 NULL,
319 NULL /* Backend_data. */