1 /* BFD back-end for Irix core files.
2 Copyright 1993, 1994, 1996, 1999, 2001, 2002, 2004, 2005, 2006, 2007
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 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. */
25 /* This file can only be compiled on systems which use Irix style core
26 files (namely, Irix 4 and Irix 5, so far). */
36 struct sgi_core_struct
39 char cmd[CORE_NAMESIZE];
42 #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
43 #define core_signal(bfd) (core_hdr(bfd)->sig)
44 #define core_command(bfd) (core_hdr(bfd)->cmd)
46 #define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
47 #define irix_core_core_file_pid _bfd_nocore_core_file_pid
49 static asection *make_bfd_asection
50 (bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
52 /* Helper function for irix_core_core_file_p:
53 32-bit and 64-bit versions. */
57 do_sections64 (bfd *abfd, struct coreout *coreout)
63 for (i = 0; i < coreout->c_nvmap; i++)
65 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
66 if (val != sizeof vmap)
86 /* A file offset of zero means that the
87 section is not contained in the corefile. */
88 if (vmap.v_offset == 0)
91 if (!make_bfd_asection (abfd, secname,
92 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
93 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
102 /* 32-bit version. */
105 do_sections (bfd *abfd, struct coreout *coreout)
111 for (i = 0; i < coreout->c_nvmap; i++)
113 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
114 if (val != sizeof vmap)
127 secname = ".mapfile";
134 /* A file offset of zero means that the
135 section is not contained in the corefile. */
136 if (vmap.v_offset == 0)
139 if (!make_bfd_asection (abfd, secname,
140 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
141 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
149 make_bfd_asection (bfd *abfd,
158 asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
164 asect->filepos = filepos;
165 asect->alignment_power = 4;
170 static const bfd_target *
171 irix_core_core_file_p (bfd *abfd)
174 struct coreout coreout;
175 struct idesc *idg, *idf, *ids;
178 val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
179 if (val != sizeof coreout)
181 if (bfd_get_error () != bfd_error_system_call)
182 bfd_set_error (bfd_error_wrong_format);
186 if (coreout.c_version != CORE_VERSION1)
189 /* Have we got a corefile? */
190 switch (coreout.c_magic)
192 case CORE_MAGIC: break;
194 case CORE_MAGIC64: break;
197 case CORE_MAGICN32: break;
199 default: return 0; /* Un-identifiable or not corefile. */
202 amt = sizeof (struct sgi_core_struct);
203 core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
204 if (!core_hdr (abfd))
207 strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
208 core_signal (abfd) = coreout.c_sigcause;
210 if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
213 /* Process corefile sections. */
215 if (coreout.c_magic == (int) CORE_MAGIC64)
217 if (! do_sections64 (abfd, & coreout))
222 if (! do_sections (abfd, & coreout))
225 /* Make sure that the regs are contiguous within the core file. */
227 idg = &coreout.c_idesc[I_GPREGS];
228 idf = &coreout.c_idesc[I_FPREGS];
229 ids = &coreout.c_idesc[I_SPECREGS];
231 if (idg->i_offset + idg->i_len != idf->i_offset
232 || idf->i_offset + idf->i_len != ids->i_offset)
233 goto fail; /* Can't deal with non-contig regs */
235 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
238 if (!make_bfd_asection (abfd, ".reg",
240 idg->i_len + idf->i_len + ids->i_len,
245 /* OK, we believe you. You're a core file (sure, sure). */
246 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
251 bfd_release (abfd, core_hdr (abfd));
252 core_hdr (abfd) = NULL;
253 bfd_section_list_clear (abfd);
258 irix_core_core_file_failing_command (bfd *abfd)
260 return core_command (abfd);
264 irix_core_core_file_failing_signal (bfd *abfd)
266 return core_signal (abfd);
269 /* If somebody calls any byte-swapping routines, shoot them. */
273 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
276 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
277 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
278 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
279 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
280 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
281 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
283 const bfd_target irix_core_vec =
286 bfd_target_unknown_flavour,
287 BFD_ENDIAN_BIG, /* target byte order */
288 BFD_ENDIAN_BIG, /* target headers byte order */
289 (HAS_RELOC | EXEC_P | /* object flags */
290 HAS_LINENO | HAS_DEBUG |
291 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
292 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
293 0, /* symbol prefix */
294 ' ', /* ar_pad_char */
295 16, /* ar_max_namelen */
296 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit data */
297 NO_GET, NO_GETS, NO_PUT, /* 32 bit data */
298 NO_GET, NO_GETS, NO_PUT, /* 16 bit data */
299 NO_GET64, NO_GETS64, NO_PUT64, /* 64 bit hdrs */
300 NO_GET, NO_GETS, NO_PUT, /* 32 bit hdrs */
301 NO_GET, NO_GETS, NO_PUT, /* 16 bit hdrs */
303 { /* bfd_check_format */
304 _bfd_dummy_target, /* unknown format */
305 _bfd_dummy_target, /* object file */
306 _bfd_dummy_target, /* archive */
307 irix_core_core_file_p /* a core file */
309 { /* bfd_set_format */
310 bfd_false, bfd_false,
313 { /* bfd_write_contents */
314 bfd_false, bfd_false,
318 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
319 BFD_JUMP_TABLE_COPY (_bfd_generic),
320 BFD_JUMP_TABLE_CORE (irix_core),
321 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
322 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
323 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
324 BFD_JUMP_TABLE_WRITE (_bfd_generic),
325 BFD_JUMP_TABLE_LINK (_bfd_nolink),
326 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
330 (PTR) 0 /* backend_data */
333 #endif /* IRIX_CORE */