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));
54 make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
58 bfd_size_type _raw_size;
64 asect = bfd_make_section_anyway (abfd, name);
69 asect->_raw_size = _raw_size;
71 asect->filepos = filepos;
72 asect->alignment_power = 4;
77 static const bfd_target *
78 irix_core_core_file_p (abfd)
84 struct coreout coreout;
85 struct idesc *idg, *idf, *ids;
88 val = bfd_bread ((PTR) &coreout, (bfd_size_type) sizeof coreout, abfd);
89 if (val != sizeof coreout)
91 if (bfd_get_error () != bfd_error_system_call)
92 bfd_set_error (bfd_error_wrong_format);
97 #define CORE_MAGICN32 CORE_MAGIC
99 if ((coreout.c_magic != CORE_MAGIC && coreout.c_magic != CORE_MAGICN32)
100 || coreout.c_version != CORE_VERSION1)
103 amt = sizeof (struct sgi_core_struct);
104 core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
105 if (!core_hdr (abfd))
108 strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
109 core_signal (abfd) = coreout.c_sigcause;
111 if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
114 for (i = 0; i < coreout.c_nvmap; i++)
118 val = bfd_bread ((PTR) &vmap, (bfd_size_type) sizeof vmap, abfd);
119 if (val != sizeof vmap)
132 secname = ".mapfile";
139 /* A file offset of zero means that the section is not contained
141 if (vmap.v_offset == 0)
144 if (!make_bfd_asection (abfd, secname,
145 SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS,
152 /* Make sure that the regs are contiguous within the core file. */
154 idg = &coreout.c_idesc[I_GPREGS];
155 idf = &coreout.c_idesc[I_FPREGS];
156 ids = &coreout.c_idesc[I_SPECREGS];
158 if (idg->i_offset + idg->i_len != idf->i_offset
159 || idf->i_offset + idf->i_len != ids->i_offset)
160 goto fail; /* Can't deal with non-contig regs */
162 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
165 if (!make_bfd_asection (abfd, ".reg",
167 idg->i_len + idf->i_len + ids->i_len,
172 /* OK, we believe you. You're a core file (sure, sure). */
173 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
178 bfd_release (abfd, core_hdr (abfd));
179 core_hdr (abfd) = NULL;
180 bfd_section_list_clear (abfd);
185 irix_core_core_file_failing_command (abfd)
188 return core_command (abfd);
192 irix_core_core_file_failing_signal (abfd)
195 return core_signal (abfd);
199 irix_core_core_file_matches_executable_p (core_bfd, exec_bfd)
200 bfd *core_bfd, *exec_bfd;
202 return true; /* XXX - FIXME */
205 /* If somebody calls any byte-swapping routines, shoot them. */
209 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
211 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
212 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
213 #define NO_SIGNED_GET \
214 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
216 const bfd_target irix_core_vec =
219 bfd_target_unknown_flavour,
220 BFD_ENDIAN_BIG, /* target byte order */
221 BFD_ENDIAN_BIG, /* target headers byte order */
222 (HAS_RELOC | EXEC_P | /* object flags */
223 HAS_LINENO | HAS_DEBUG |
224 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
225 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
226 0, /* symbol prefix */
227 ' ', /* ar_pad_char */
228 16, /* ar_max_namelen */
229 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
230 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
231 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
232 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
233 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
234 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
236 { /* bfd_check_format */
237 _bfd_dummy_target, /* unknown format */
238 _bfd_dummy_target, /* object file */
239 _bfd_dummy_target, /* archive */
240 irix_core_core_file_p /* a core file */
242 { /* bfd_set_format */
243 bfd_false, bfd_false,
246 { /* bfd_write_contents */
247 bfd_false, bfd_false,
251 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
252 BFD_JUMP_TABLE_COPY (_bfd_generic),
253 BFD_JUMP_TABLE_CORE (irix_core),
254 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
255 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
256 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
257 BFD_JUMP_TABLE_WRITE (_bfd_generic),
258 BFD_JUMP_TABLE_LINK (_bfd_nolink),
259 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
263 (PTR) 0 /* backend_data */
266 #endif /* IRIX_CORE */