1 /* BFD back-end for Irix core files.
2 Copyright 1993, 1994, 1996, 1999, 2001, 2002, 2004, 2006
3 Free Software Foundation, Inc.
4 Written by Stu Grossman, Cygnus Support.
5 Converted to back-end form by Ian Lance Taylor, Cygnus Support
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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
23 /* This file can only be compiled on systems which use Irix style core
24 files (namely, Irix 4 and Irix 5, so far). */
34 struct sgi_core_struct
37 char cmd[CORE_NAMESIZE];
40 #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
41 #define core_signal(bfd) (core_hdr(bfd)->sig)
42 #define core_command(bfd) (core_hdr(bfd)->cmd)
44 #define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
46 static asection *make_bfd_asection
47 (bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
49 /* Helper function for irix_core_core_file_p:
50 32-bit and 64-bit versions. */
54 do_sections64 (bfd *abfd, struct coreout *coreout)
60 for (i = 0; i < coreout->c_nvmap; i++)
62 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
63 if (val != sizeof vmap)
83 /* A file offset of zero means that the
84 section is not contained in the corefile. */
85 if (vmap.v_offset == 0)
88 if (!make_bfd_asection (abfd, secname,
89 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
90 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
102 do_sections (bfd *abfd, struct coreout *coreout)
108 for (i = 0; i < coreout->c_nvmap; i++)
110 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
111 if (val != sizeof vmap)
124 secname = ".mapfile";
131 /* A file offset of zero means that the
132 section is not contained in the corefile. */
133 if (vmap.v_offset == 0)
136 if (!make_bfd_asection (abfd, secname,
137 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
138 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
146 make_bfd_asection (bfd *abfd,
155 asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
161 asect->filepos = filepos;
162 asect->alignment_power = 4;
167 static const bfd_target *
168 irix_core_core_file_p (bfd *abfd)
171 struct coreout coreout;
172 struct idesc *idg, *idf, *ids;
175 val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
176 if (val != sizeof coreout)
178 if (bfd_get_error () != bfd_error_system_call)
179 bfd_set_error (bfd_error_wrong_format);
183 if (coreout.c_version != CORE_VERSION1)
186 /* Have we got a corefile? */
187 switch (coreout.c_magic)
189 case CORE_MAGIC: break;
191 case CORE_MAGIC64: break;
194 case CORE_MAGICN32: break;
196 default: return 0; /* Un-identifiable or not corefile. */
199 amt = sizeof (struct sgi_core_struct);
200 core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
201 if (!core_hdr (abfd))
204 strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
205 core_signal (abfd) = coreout.c_sigcause;
207 if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
210 /* Process corefile sections. */
212 if (coreout.c_magic == (int) CORE_MAGIC64)
214 if (! do_sections64 (abfd, & coreout))
219 if (! do_sections (abfd, & coreout))
222 /* Make sure that the regs are contiguous within the core file. */
224 idg = &coreout.c_idesc[I_GPREGS];
225 idf = &coreout.c_idesc[I_FPREGS];
226 ids = &coreout.c_idesc[I_SPECREGS];
228 if (idg->i_offset + idg->i_len != idf->i_offset
229 || idf->i_offset + idf->i_len != ids->i_offset)
230 goto fail; /* Can't deal with non-contig regs */
232 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
235 if (!make_bfd_asection (abfd, ".reg",
237 idg->i_len + idf->i_len + ids->i_len,
242 /* OK, we believe you. You're a core file (sure, sure). */
243 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
248 bfd_release (abfd, core_hdr (abfd));
249 core_hdr (abfd) = NULL;
250 bfd_section_list_clear (abfd);
255 irix_core_core_file_failing_command (bfd *abfd)
257 return core_command (abfd);
261 irix_core_core_file_failing_signal (bfd *abfd)
263 return core_signal (abfd);
266 /* If somebody calls any byte-swapping routines, shoot them. */
270 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
273 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
274 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
275 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
276 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
277 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
278 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
280 const bfd_target irix_core_vec =
283 bfd_target_unknown_flavour,
284 BFD_ENDIAN_BIG, /* target byte order */
285 BFD_ENDIAN_BIG, /* target headers byte order */
286 (HAS_RELOC | EXEC_P | /* object flags */
287 HAS_LINENO | HAS_DEBUG |
288 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
289 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
290 0, /* symbol prefix */
291 ' ', /* ar_pad_char */
292 16, /* ar_max_namelen */
293 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
294 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
295 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
296 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
297 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
298 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
300 { /* bfd_check_format */
301 _bfd_dummy_target, /* unknown format */
302 _bfd_dummy_target, /* object file */
303 _bfd_dummy_target, /* archive */
304 irix_core_core_file_p /* a core file */
306 { /* bfd_set_format */
307 bfd_false, bfd_false,
310 { /* bfd_write_contents */
311 bfd_false, bfd_false,
315 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
316 BFD_JUMP_TABLE_COPY (_bfd_generic),
317 BFD_JUMP_TABLE_CORE (irix_core),
318 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
319 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
320 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
321 BFD_JUMP_TABLE_WRITE (_bfd_generic),
322 BFD_JUMP_TABLE_LINK (_bfd_nolink),
323 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
327 (PTR) 0 /* backend_data */
330 #endif /* IRIX_CORE */