1 /* BFD back-end for Irix core files.
2 Copyright 1993, 1994, 1996, 1999, 2001 Free Software Foundation, Inc.
3 Written by Stu Grossman, Cygnus Support.
4 Converted to back-end form by Ian Lance Taylor, Cygnus Support
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 /* This file can only be compiled on systems which use Irix style core
23 files (namely, Irix 4 and Irix 5, so far). */
33 struct sgi_core_struct
36 char cmd[CORE_NAMESIZE];
39 #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
40 #define core_signal(bfd) (core_hdr(bfd)->sig)
41 #define core_command(bfd) (core_hdr(bfd)->cmd)
43 static asection *make_bfd_asection
44 PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr));
45 static const bfd_target *irix_core_core_file_p PARAMS ((bfd *));
46 static char *irix_core_core_file_failing_command PARAMS ((bfd *));
47 static int irix_core_core_file_failing_signal PARAMS ((bfd *));
48 static boolean irix_core_core_file_matches_executable_p
49 PARAMS ((bfd *, bfd *));
50 static asymbol *irix_core_make_empty_symbol PARAMS ((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 return 0; /* Can't deal with non-contig regs */
162 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
165 make_bfd_asection (abfd, ".reg",
167 idg->i_len + idf->i_len + ids->i_len,
171 /* OK, we believe you. You're a core file (sure, sure). */
172 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
178 irix_core_core_file_failing_command (abfd)
181 return core_command (abfd);
185 irix_core_core_file_failing_signal (abfd)
188 return core_signal (abfd);
192 irix_core_core_file_matches_executable_p (core_bfd, exec_bfd)
193 bfd *core_bfd, *exec_bfd;
195 return true; /* XXX - FIXME */
199 irix_core_make_empty_symbol (abfd)
202 bfd_size_type amt = sizeof (asymbol);
203 asymbol *new = (asymbol *) bfd_zalloc (abfd, amt);
209 #define irix_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
210 #define irix_core_get_symtab _bfd_nosymbols_get_symtab
211 #define irix_core_print_symbol _bfd_nosymbols_print_symbol
212 #define irix_core_get_symbol_info _bfd_nosymbols_get_symbol_info
213 #define irix_core_bfd_is_local_label_name \
214 _bfd_nosymbols_bfd_is_local_label_name
215 #define irix_core_get_lineno _bfd_nosymbols_get_lineno
216 #define irix_core_find_nearest_line _bfd_nosymbols_find_nearest_line
217 #define irix_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
218 #define irix_core_read_minisymbols _bfd_nosymbols_read_minisymbols
219 #define irix_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
221 /* If somebody calls any byte-swapping routines, shoot them. */
225 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
227 #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
228 #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
229 #define NO_SIGNED_GET \
230 ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
232 const bfd_target irix_core_vec =
235 bfd_target_unknown_flavour,
236 BFD_ENDIAN_BIG, /* target byte order */
237 BFD_ENDIAN_BIG, /* target headers byte order */
238 (HAS_RELOC | EXEC_P | /* object flags */
239 HAS_LINENO | HAS_DEBUG |
240 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
241 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
242 0, /* symbol prefix */
243 ' ', /* ar_pad_char */
244 16, /* ar_max_namelen */
245 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
246 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
247 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
248 NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
249 NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
250 NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
252 { /* bfd_check_format */
253 _bfd_dummy_target, /* unknown format */
254 _bfd_dummy_target, /* object file */
255 _bfd_dummy_target, /* archive */
256 irix_core_core_file_p /* a core file */
258 { /* bfd_set_format */
259 bfd_false, bfd_false,
262 { /* bfd_write_contents */
263 bfd_false, bfd_false,
267 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
268 BFD_JUMP_TABLE_COPY (_bfd_generic),
269 BFD_JUMP_TABLE_CORE (irix_core),
270 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
271 BFD_JUMP_TABLE_SYMBOLS (irix_core),
272 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
273 BFD_JUMP_TABLE_WRITE (_bfd_generic),
274 BFD_JUMP_TABLE_LINK (_bfd_nolink),
275 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
279 (PTR) 0 /* backend_data */
282 #endif /* IRIX_CORE */