* emultempl/spuelf.em (gld${EMULATION_NAME}_finish): Make "can not
[binutils.git] / bfd / netbsd-core.c
blob397f1d086acf50d1975754462bdb34ad0507626b
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
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
48 struct netbsd_core_struct
50 struct core core;
51 } *rawptr;
53 /* Handle NetBSD-style core dump file. */
55 static const bfd_target *
56 netbsd_core_file_p (bfd *abfd)
58 int val;
59 unsigned i;
60 file_ptr offset;
61 asection *asect;
62 struct core core;
63 struct coreseg coreseg;
64 bfd_size_type amt = sizeof core;
66 val = bfd_bread (&core, amt, abfd);
67 if (val != sizeof core)
69 /* Too small to be a core file. */
70 bfd_set_error (bfd_error_wrong_format);
71 return 0;
74 if (CORE_GETMAGIC (core) != COREMAGIC)
76 bfd_set_error (bfd_error_wrong_format);
77 return 0;
80 amt = sizeof (struct netbsd_core_struct);
81 rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
82 if (rawptr == NULL)
83 return 0;
85 rawptr->core = core;
86 abfd->tdata.netbsd_core_data = rawptr;
88 offset = core.c_hdrsize;
89 for (i = 0; i < core.c_nseg; i++)
91 const char *sname;
92 flagword flags;
94 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
95 goto punt;
97 val = bfd_bread (&coreseg, sizeof coreseg, abfd);
98 if (val != sizeof coreseg)
100 bfd_set_error (bfd_error_file_truncated);
101 goto punt;
103 if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
105 bfd_set_error (bfd_error_wrong_format);
106 goto punt;
109 offset += core.c_seghdrsize;
111 switch (CORE_GETFLAG (coreseg))
113 case CORE_CPU:
114 sname = ".reg";
115 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
116 break;
117 case CORE_DATA:
118 sname = ".data";
119 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
120 break;
121 case CORE_STACK:
122 sname = ".stack";
123 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
124 break;
125 default:
126 sname = ".unknown";
127 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
128 break;
130 asect = bfd_make_section_anyway_with_flags (abfd, sname, flags);
131 if (asect == NULL)
132 goto punt;
134 asect->size = coreseg.c_size;
135 asect->vma = coreseg.c_addr;
136 asect->filepos = offset;
137 asect->alignment_power = 2;
139 if (CORE_GETFLAG (coreseg) == CORE_CPU)
141 bfd_size_type wcookie_offset;
143 switch (CORE_GETMID (core))
145 case M_SPARC_NETBSD:
146 wcookie_offset = SPARC_WCOOKIE_OFFSET;
147 break;
148 case M_SPARC64_OPENBSD:
149 wcookie_offset = SPARC64_WCOOKIE_OFFSET;
150 break;
151 default:
152 wcookie_offset = 0;
153 break;
156 if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
158 /* Truncate the .reg section. */
159 asect->size = wcookie_offset;
161 /* And create the .wcookie section. */
162 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
163 asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
164 flags);
165 if (asect == NULL)
166 goto punt;
168 asect->size = coreseg.c_size - wcookie_offset;
169 asect->vma = 0;
170 asect->filepos = offset + wcookie_offset;
171 asect->alignment_power = 2;
175 offset += coreseg.c_size;
178 /* Set architecture from machine ID. */
179 switch (CORE_GETMID (core))
181 case M_ALPHA_NETBSD:
182 bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
183 break;
185 case M_ARM6_NETBSD:
186 bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
187 break;
189 case M_X86_64_NETBSD:
190 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
191 break;
193 case M_386_NETBSD:
194 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
195 break;
197 case M_68K_NETBSD:
198 case M_68K4K_NETBSD:
199 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
200 break;
202 case M_88K_OPENBSD:
203 bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
204 break;
206 case M_HPPA_OPENBSD:
207 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
208 break;
210 case M_POWERPC_NETBSD:
211 bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
212 break;
214 case M_SPARC_NETBSD:
215 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
216 break;
218 case M_SPARC64_NETBSD:
219 case M_SPARC64_OPENBSD:
220 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
221 break;
223 case M_VAX_NETBSD:
224 case M_VAX4K_NETBSD:
225 bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
226 break;
229 /* OK, we believe you. You're a core file (sure, sure). */
230 return abfd->xvec;
232 punt:
233 bfd_release (abfd, abfd->tdata.any);
234 abfd->tdata.any = NULL;
235 bfd_section_list_clear (abfd);
236 return 0;
239 static char*
240 netbsd_core_file_failing_command (bfd *abfd)
242 /*return core_command (abfd);*/
243 return abfd->tdata.netbsd_core_data->core.c_name;
246 static int
247 netbsd_core_file_failing_signal (bfd *abfd)
249 /*return core_signal (abfd);*/
250 return abfd->tdata.netbsd_core_data->core.c_signo;
253 /* If somebody calls any byte-swapping routines, shoot them. */
255 static void
256 swap_abort (void)
258 /* This way doesn't require any declaration for ANSI to fuck up. */
259 abort ();
262 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
263 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
264 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
265 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
266 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
267 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
269 const bfd_target netbsd_core_vec =
271 "netbsd-core",
272 bfd_target_unknown_flavour,
273 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
274 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
275 (HAS_RELOC | EXEC_P | /* Object flags. */
276 HAS_LINENO | HAS_DEBUG |
277 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
278 (SEC_HAS_CONTENTS | /* Section flags. */
279 SEC_ALLOC | SEC_LOAD | SEC_RELOC),
280 0, /* Symbol prefix. */
281 ' ', /* ar_pad_char. */
282 16, /* ar_max_namelen. */
283 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data. */
284 NO_GET, NO_GETS, NO_PUT, /* 32 bit data. */
285 NO_GET, NO_GETS, NO_PUT, /* 16 bit data. */
286 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs. */
287 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs. */
288 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs. */
290 { /* bfd_check_format. */
291 _bfd_dummy_target, /* Unknown format. */
292 _bfd_dummy_target, /* Object file. */
293 _bfd_dummy_target, /* Archive. */
294 netbsd_core_file_p /* A core file. */
296 { /* bfd_set_format. */
297 bfd_false, bfd_false,
298 bfd_false, bfd_false
300 { /* bfd_write_contents. */
301 bfd_false, bfd_false,
302 bfd_false, bfd_false
305 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
306 BFD_JUMP_TABLE_COPY (_bfd_generic),
307 BFD_JUMP_TABLE_CORE (netbsd),
308 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
309 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
310 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
311 BFD_JUMP_TABLE_WRITE (_bfd_generic),
312 BFD_JUMP_TABLE_LINK (_bfd_nolink),
313 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
315 NULL,
317 (PTR) 0 /* Backend_data. */