1 /* BFD back-end for Irix core files.
2 Copyright 1993, 1994, 1996, 1999, 2001, 2002
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 static asection *make_bfd_asection
45 PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr));
46 static const bfd_target *irix_core_core_file_p PARAMS ((bfd *));
47 static char *irix_core_core_file_failing_command PARAMS ((bfd *));
48 static int irix_core_core_file_failing_signal PARAMS ((bfd *));
49 static boolean irix_core_core_file_matches_executable_p
50 PARAMS ((bfd *, bfd *));
51 static void swap_abort PARAMS ((void));
53 static int do_sections64 PARAMS ((bfd *, struct coreout *));
55 static int do_sections PARAMS ((bfd *, struct coreout *));
57 /* Helper function for irix_core_core_file_p:
58 32-bit and 64-bit versions. */
62 do_sections64 (abfd, coreout)
64 struct coreout * coreout;
70 for (i = 0; i < coreout->c_nvmap; i++)
72 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
73 if (val != sizeof vmap)
93 /* A file offset of zero means that the
94 section is not contained in the corefile. */
95 if (vmap.v_offset == 0)
98 if (!make_bfd_asection (abfd, secname,
99 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
100 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
109 /* 32-bit version. */
112 do_sections (abfd, coreout)
114 struct coreout *coreout;
120 for (i = 0; i < coreout->c_nvmap; i++)
122 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
123 if (val != sizeof vmap)
136 secname = ".mapfile";
143 /* A file offset of zero means that the
144 section is not contained in the corefile. */
145 if (vmap.v_offset == 0)
148 if (!make_bfd_asection (abfd, secname,
149 SEC_ALLOC | SEC_LOAD+SEC_HAS_CONTENTS,
150 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
158 make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
162 bfd_size_type _raw_size;
168 asect = bfd_make_section_anyway (abfd, name);
172 asect->flags = flags;
173 asect->_raw_size = _raw_size;
175 asect->filepos = filepos;
176 asect->alignment_power = 4;
181 static const bfd_target *
182 irix_core_core_file_p (abfd)
186 struct coreout coreout;
187 struct idesc *idg, *idf, *ids;
190 val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
191 if (val != sizeof coreout)
193 if (bfd_get_error () != bfd_error_system_call)
194 bfd_set_error (bfd_error_wrong_format);
198 if (coreout.c_version != CORE_VERSION1)
201 /* Have we got a corefile? */
202 switch (coreout.c_magic)
204 case CORE_MAGIC: break;
206 case CORE_MAGIC64: break;
209 case CORE_MAGICN32: break;
211 default: return 0; /* Un-identifiable or not corefile. */
214 amt = sizeof (struct sgi_core_struct);
215 core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
216 if (!core_hdr (abfd))
219 strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
220 core_signal (abfd) = coreout.c_sigcause;
222 if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
225 /* Process corefile sections. */
227 if (coreout.c_magic == (int) CORE_MAGIC64)
229 if (! do_sections64 (abfd, & coreout))
234 if (! do_sections (abfd, & coreout))
237 /* Make sure that the regs are contiguous within the core file. */
239 idg = &coreout.c_idesc[I_GPREGS];
240 idf = &coreout.c_idesc[I_FPREGS];
241 ids = &coreout.c_idesc[I_SPECREGS];
243 if (idg->i_offset + idg->i_len != idf->i_offset
244 || idf->i_offset + idf->i_len != ids->i_offset)
245 goto fail; /* Can't deal with non-contig regs */
247 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
250 if (!make_bfd_asection (abfd, ".reg",
252 idg->i_len + idf->i_len + ids->i_len,
257 /* OK, we believe you. You're a core file (sure, sure). */
258 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
263 bfd_release (abfd, core_hdr (abfd));
264 core_hdr (abfd) = NULL;
265 bfd_section_list_clear (abfd);
270 irix_core_core_file_failing_command (abfd)
273 return core_command (abfd);
277 irix_core_core_file_failing_signal (abfd)
280 return core_signal (abfd);
284 irix_core_core_file_matches_executable_p (core_bfd, exec_bfd)
285 bfd *core_bfd, *exec_bfd;
287 return true; /* XXX - FIXME */
290 /* If somebody calls any byte-swapping routines, shoot them. */
294 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
296 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
297 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
298 #define NO_SIGNED_GET \
299 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
301 const bfd_target irix_core_vec =
304 bfd_target_unknown_flavour,
305 BFD_ENDIAN_BIG, /* target byte order */
306 BFD_ENDIAN_BIG, /* target headers byte order */
307 (HAS_RELOC | EXEC_P | /* object flags */
308 HAS_LINENO | HAS_DEBUG |
309 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
310 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
311 0, /* symbol prefix */
312 ' ', /* ar_pad_char */
313 16, /* ar_max_namelen */
314 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
315 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
316 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
317 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
318 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
319 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
321 { /* bfd_check_format */
322 _bfd_dummy_target, /* unknown format */
323 _bfd_dummy_target, /* object file */
324 _bfd_dummy_target, /* archive */
325 irix_core_core_file_p /* a core file */
327 { /* bfd_set_format */
328 bfd_false, bfd_false,
331 { /* bfd_write_contents */
332 bfd_false, bfd_false,
336 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
337 BFD_JUMP_TABLE_COPY (_bfd_generic),
338 BFD_JUMP_TABLE_CORE (irix_core),
339 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
340 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
341 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
342 BFD_JUMP_TABLE_WRITE (_bfd_generic),
343 BFD_JUMP_TABLE_LINK (_bfd_nolink),
344 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
348 (PTR) 0 /* backend_data */
351 #endif /* IRIX_CORE */