1 /* BFD back end for NetBSD style core files
2 Copyright (C) 1988-2017 Free Software Foundation, Inc.
3 Written by Paul Kranenburg, EUR
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. */
25 #include "libaout.h" /* BFD a.out internal data structures. */
27 #include <sys/param.h>
32 /* The machine ID for OpenBSD/sparc64 and older versions of
33 NetBSD/sparc64 overlaps with M_MIPS1. */
34 #define M_SPARC64_OPENBSD M_MIPS1
36 /* Offset of StackGhost cookie within `struct md_coredump' on
38 #define SPARC_WCOOKIE_OFFSET 344
40 /* Offset of StackGhost cookie within `struct md_coredump' on
42 #define SPARC64_WCOOKIE_OFFSET 832
44 #define netbsd_core_file_matches_executable_p generic_core_file_matches_executable_p
45 #define netbsd_core_file_pid _bfd_nocore_core_file_pid
47 struct netbsd_core_struct
52 /* Handle NetBSD-style core dump file. */
54 static const bfd_target *
55 netbsd_core_file_p (bfd *abfd)
62 struct coreseg coreseg;
63 bfd_size_type amt = sizeof core;
65 val = bfd_bread (&core, amt, abfd);
66 if (val != sizeof core)
68 /* Too small to be a core file. */
69 bfd_set_error (bfd_error_wrong_format);
73 if (CORE_GETMAGIC (core) != COREMAGIC)
75 bfd_set_error (bfd_error_wrong_format);
79 amt = sizeof (struct netbsd_core_struct);
80 rawptr = (struct netbsd_core_struct *) bfd_zalloc (abfd, amt);
85 abfd->tdata.netbsd_core_data = rawptr;
87 offset = core.c_hdrsize;
88 for (i = 0; i < core.c_nseg; i++)
93 if (bfd_seek (abfd, offset, SEEK_SET) != 0)
96 val = bfd_bread (&coreseg, sizeof coreseg, abfd);
97 if (val != sizeof coreseg)
99 bfd_set_error (bfd_error_file_truncated);
102 if (CORE_GETMAGIC (coreseg) != CORESEGMAGIC)
104 bfd_set_error (bfd_error_wrong_format);
108 offset += core.c_seghdrsize;
110 switch (CORE_GETFLAG (coreseg))
114 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
118 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
122 flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
126 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
129 asect = bfd_make_section_anyway_with_flags (abfd, sname, flags);
133 asect->size = coreseg.c_size;
134 asect->vma = coreseg.c_addr;
135 asect->filepos = offset;
136 asect->alignment_power = 2;
138 if (CORE_GETFLAG (coreseg) == CORE_CPU)
140 bfd_size_type wcookie_offset;
142 switch (CORE_GETMID (core))
145 wcookie_offset = SPARC_WCOOKIE_OFFSET;
147 case M_SPARC64_OPENBSD:
148 wcookie_offset = SPARC64_WCOOKIE_OFFSET;
155 if (wcookie_offset > 0 && coreseg.c_size > wcookie_offset)
157 /* Truncate the .reg section. */
158 asect->size = wcookie_offset;
160 /* And create the .wcookie section. */
161 flags = SEC_ALLOC + SEC_HAS_CONTENTS;
162 asect = bfd_make_section_anyway_with_flags (abfd, ".wcookie",
167 asect->size = coreseg.c_size - wcookie_offset;
169 asect->filepos = offset + wcookie_offset;
170 asect->alignment_power = 2;
174 offset += coreseg.c_size;
177 /* Set architecture from machine ID. */
178 switch (CORE_GETMID (core))
181 bfd_default_set_arch_mach (abfd, bfd_arch_alpha, 0);
185 bfd_default_set_arch_mach (abfd, bfd_arch_arm, bfd_mach_arm_3);
188 case M_X86_64_NETBSD:
189 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_x86_64);
193 bfd_default_set_arch_mach (abfd, bfd_arch_i386, bfd_mach_i386_i386);
198 bfd_default_set_arch_mach (abfd, bfd_arch_m68k, 0);
202 bfd_default_set_arch_mach (abfd, bfd_arch_m88k, 0);
206 bfd_default_set_arch_mach (abfd, bfd_arch_hppa, bfd_mach_hppa11);
209 case M_POWERPC_NETBSD:
210 bfd_default_set_arch_mach (abfd, bfd_arch_powerpc, bfd_mach_ppc);
214 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
217 case M_SPARC64_NETBSD:
218 case M_SPARC64_OPENBSD:
219 bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc_v9);
224 bfd_default_set_arch_mach (abfd, bfd_arch_vax, 0);
228 /* OK, we believe you. You're a core file (sure, sure). */
232 bfd_release (abfd, abfd->tdata.any);
233 abfd->tdata.any = NULL;
234 bfd_section_list_clear (abfd);
239 netbsd_core_file_failing_command (bfd *abfd)
241 /*return core_command (abfd);*/
242 return abfd->tdata.netbsd_core_data->core.c_name;
246 netbsd_core_file_failing_signal (bfd *abfd)
248 /*return core_signal (abfd);*/
249 return abfd->tdata.netbsd_core_data->core.c_signo;
252 /* If somebody calls any byte-swapping routines, shoot them. */
257 /* This way doesn't require any declaration for ANSI to fuck up. */
261 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
262 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
263 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
264 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
265 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
266 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
268 const bfd_target core_netbsd_vec =
271 bfd_target_unknown_flavour,
272 BFD_ENDIAN_UNKNOWN, /* Target byte order. */
273 BFD_ENDIAN_UNKNOWN, /* Target headers byte order. */
274 (HAS_RELOC | EXEC_P | /* Object flags. */
275 HAS_LINENO | HAS_DEBUG |
276 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
277 (SEC_HAS_CONTENTS | /* Section flags. */
278 SEC_ALLOC | SEC_LOAD | SEC_RELOC),
279 0, /* Symbol prefix. */
280 ' ', /* ar_pad_char. */
281 16, /* ar_max_namelen. */
282 0, /* Match priority. */
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,
300 { /* bfd_write_contents. */
301 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),
317 NULL /* Backend_data. */