1 /* BFD back-end for Irix core files.
2 Copyright (C) 1993-2018 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
24 /* This file can only be compiled on systems which use Irix style core
25 files (namely, Irix 4 and Irix 5, so far). */
35 struct sgi_core_struct
38 char cmd[CORE_NAMESIZE];
41 #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
42 #define core_signal(bfd) (core_hdr(bfd)->sig)
43 #define core_command(bfd) (core_hdr(bfd)->cmd)
45 #define irix_core_core_file_matches_executable_p generic_core_file_matches_executable_p
46 #define irix_core_core_file_pid _bfd_nocore_core_file_pid
48 static asection *make_bfd_asection
49 (bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr);
51 /* Helper function for irix_core_core_file_p:
52 32-bit and 64-bit versions. */
56 do_sections64 (bfd *abfd, struct coreout *coreout)
62 for (i = 0; i < coreout->c_nvmap; i++)
64 val = bfd_bread (&vmap, (bfd_size_type) sizeof vmap, abfd);
65 if (val != sizeof vmap)
85 /* A file offset of zero means that the
86 section is not contained in the corefile. */
87 if (vmap.v_offset == 0)
90 if (!make_bfd_asection (abfd, secname,
91 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
92 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
101 /* 32-bit version. */
104 do_sections (bfd *abfd, struct coreout *coreout)
110 for (i = 0; i < coreout->c_nvmap; i++)
112 val = bfd_bread (&vmap, (bfd_size_type) sizeof vmap, abfd);
113 if (val != sizeof vmap)
126 secname = ".mapfile";
133 /* A file offset of zero means that the
134 section is not contained in the corefile. */
135 if (vmap.v_offset == 0)
138 if (!make_bfd_asection (abfd, secname,
139 SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
140 vmap.v_len, vmap.v_vaddr, vmap.v_offset))
148 make_bfd_asection (bfd *abfd,
157 asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
163 asect->filepos = filepos;
164 asect->alignment_power = 4;
169 static const bfd_target *
170 irix_core_core_file_p (bfd *abfd)
173 struct coreout coreout;
174 struct idesc *idg, *idf, *ids;
177 val = bfd_bread (&coreout, (bfd_size_type) sizeof coreout, abfd);
178 if (val != sizeof coreout)
180 if (bfd_get_error () != bfd_error_system_call)
181 bfd_set_error (bfd_error_wrong_format);
185 if (coreout.c_version != CORE_VERSION1)
188 /* Have we got a corefile? */
189 switch (coreout.c_magic)
191 case CORE_MAGIC: break;
193 case CORE_MAGIC64: break;
196 case CORE_MAGICN32: break;
198 default: return 0; /* Un-identifiable or not corefile. */
201 amt = sizeof (struct sgi_core_struct);
202 core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, amt);
203 if (!core_hdr (abfd))
206 strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
207 core_signal (abfd) = coreout.c_sigcause;
209 if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
212 /* Process corefile sections. */
214 if (coreout.c_magic == (int) CORE_MAGIC64)
216 if (! do_sections64 (abfd, & coreout))
221 if (! do_sections (abfd, & coreout))
224 /* Make sure that the regs are contiguous within the core file. */
226 idg = &coreout.c_idesc[I_GPREGS];
227 idf = &coreout.c_idesc[I_FPREGS];
228 ids = &coreout.c_idesc[I_SPECREGS];
230 if (idg->i_offset + idg->i_len != idf->i_offset
231 || idf->i_offset + idf->i_len != ids->i_offset)
232 goto fail; /* Can't deal with non-contig regs */
234 if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
237 if (!make_bfd_asection (abfd, ".reg",
239 idg->i_len + idf->i_len + ids->i_len,
244 /* OK, we believe you. You're a core file (sure, sure). */
245 bfd_default_set_arch_mach (abfd, bfd_arch_mips, 0);
250 bfd_release (abfd, core_hdr (abfd));
251 core_hdr (abfd) = NULL;
252 bfd_section_list_clear (abfd);
257 irix_core_core_file_failing_command (bfd *abfd)
259 return core_command (abfd);
263 irix_core_core_file_failing_signal (bfd *abfd)
265 return core_signal (abfd);
268 /* If somebody calls any byte-swapping routines, shoot them. */
272 abort(); /* This way doesn't require any declaration for ANSI to fuck up */
275 #define NO_GET ((bfd_vma (*) (const void *)) swap_abort)
276 #define NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
277 #define NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
278 #define NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
279 #define NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
280 #define NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
282 const bfd_target core_irix_vec =
285 bfd_target_unknown_flavour,
286 BFD_ENDIAN_BIG, /* target byte order */
287 BFD_ENDIAN_BIG, /* target headers byte order */
288 (HAS_RELOC | EXEC_P | /* object flags */
289 HAS_LINENO | HAS_DEBUG |
290 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
291 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
292 0, /* symbol prefix */
293 ' ', /* ar_pad_char */
294 16, /* ar_max_namelen */
295 0, /* match_priority */
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_bool_bfd_false_error,
311 _bfd_bool_bfd_false_error,
312 _bfd_bool_bfd_false_error,
313 _bfd_bool_bfd_false_error
315 { /* bfd_write_contents */
316 _bfd_bool_bfd_false_error,
317 _bfd_bool_bfd_false_error,
318 _bfd_bool_bfd_false_error,
319 _bfd_bool_bfd_false_error
322 BFD_JUMP_TABLE_GENERIC (_bfd_generic),
323 BFD_JUMP_TABLE_COPY (_bfd_generic),
324 BFD_JUMP_TABLE_CORE (irix_core),
325 BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
326 BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
327 BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
328 BFD_JUMP_TABLE_WRITE (_bfd_generic),
329 BFD_JUMP_TABLE_LINK (_bfd_nolink),
330 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
334 NULL /* backend_data */
337 #endif /* IRIX_CORE */