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[/] [or1k/] [tags/] [start/] [gdb-5.0/] [bfd/] [irix-core.c] - Rev 1780
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/* BFD back-end for Irix core files. Copyright 1993, 94, 95, 96, 1997 Free Software Foundation, Inc. Written by Stu Grossman, Cygnus Support. Converted to back-end form by Ian Lance Taylor, Cygnus Support This file is part of BFD, the Binary File Descriptor library. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* This file can only be compiled on systems which use Irix style core files (namely, Irix 4 and Irix 5, so far). */ #include "bfd.h" #include "sysdep.h" #include "libbfd.h" #ifdef IRIX_CORE #include <core.out.h> struct sgi_core_struct { int sig; char cmd[CORE_NAMESIZE]; }; #define core_hdr(bfd) ((bfd)->tdata.sgi_core_data) #define core_signal(bfd) (core_hdr(bfd)->sig) #define core_command(bfd) (core_hdr(bfd)->cmd) static asection *make_bfd_asection PARAMS ((bfd *, CONST char *, flagword, bfd_size_type, bfd_vma, file_ptr)); static const bfd_target *irix_core_core_file_p PARAMS ((bfd *)); static char *irix_core_core_file_failing_command PARAMS ((bfd *)); static int irix_core_core_file_failing_signal PARAMS ((bfd *)); static boolean irix_core_core_file_matches_executable_p PARAMS ((bfd *, bfd *)); static asymbol *irix_core_make_empty_symbol PARAMS ((bfd *)); static void swap_abort PARAMS ((void)); static asection * make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos) bfd *abfd; CONST char *name; flagword flags; bfd_size_type _raw_size; bfd_vma vma; file_ptr filepos; { asection *asect; asect = bfd_make_section_anyway (abfd, name); if (!asect) return NULL; asect->flags = flags; asect->_raw_size = _raw_size; asect->vma = vma; asect->filepos = filepos; asect->alignment_power = 4; return asect; } static const bfd_target * irix_core_core_file_p (abfd) bfd *abfd; { int val; int i; char *secname; struct coreout coreout; struct idesc *idg, *idf, *ids; val = bfd_read ((PTR)&coreout, 1, sizeof coreout, abfd); if (val != sizeof coreout) { if (bfd_get_error () != bfd_error_system_call) bfd_set_error (bfd_error_wrong_format); return 0; } #ifndef CORE_MAGICN32 #define CORE_MAGICN32 CORE_MAGIC #endif if ((coreout.c_magic != CORE_MAGIC && coreout.c_magic != CORE_MAGICN32) || coreout.c_version != CORE_VERSION1) return 0; core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, sizeof (struct sgi_core_struct)); if (!core_hdr (abfd)) return NULL; strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE); core_signal (abfd) = coreout.c_sigcause; if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0) return NULL; for (i = 0; i < coreout.c_nvmap; i++) { struct vmap vmap; val = bfd_read ((PTR)&vmap, 1, sizeof vmap, abfd); if (val != sizeof vmap) break; switch (vmap.v_type) { case VDATA: secname = ".data"; break; case VSTACK: secname = ".stack"; break; #ifdef VMAPFILE case VMAPFILE: secname = ".mapfile"; break; #endif default: continue; } /* A file offset of zero means that the section is not contained in the corefile. */ if (vmap.v_offset == 0) continue; if (!make_bfd_asection (abfd, secname, SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS, vmap.v_len, vmap.v_vaddr, vmap.v_offset)) return NULL; } /* Make sure that the regs are contiguous within the core file. */ idg = &coreout.c_idesc[I_GPREGS]; idf = &coreout.c_idesc[I_FPREGS]; ids = &coreout.c_idesc[I_SPECREGS]; if (idg->i_offset + idg->i_len != idf->i_offset || idf->i_offset + idf->i_len != ids->i_offset) return 0; /* Can't deal with non-contig regs */ if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0) return NULL; make_bfd_asection (abfd, ".reg", SEC_HAS_CONTENTS, idg->i_len + idf->i_len + ids->i_len, 0, idg->i_offset); /* OK, we believe you. You're a core file (sure, sure). */ return abfd->xvec; } static char * irix_core_core_file_failing_command (abfd) bfd *abfd; { return core_command (abfd); } static int irix_core_core_file_failing_signal (abfd) bfd *abfd; { return core_signal (abfd); } static boolean irix_core_core_file_matches_executable_p (core_bfd, exec_bfd) bfd *core_bfd, *exec_bfd; { return true; /* XXX - FIXME */ } static asymbol * irix_core_make_empty_symbol (abfd) bfd *abfd; { asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol)); if (new) new->the_bfd = abfd; return new; } #define irix_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound #define irix_core_get_symtab _bfd_nosymbols_get_symtab #define irix_core_print_symbol _bfd_nosymbols_print_symbol #define irix_core_get_symbol_info _bfd_nosymbols_get_symbol_info #define irix_core_bfd_is_local_label_name \ _bfd_nosymbols_bfd_is_local_label_name #define irix_core_get_lineno _bfd_nosymbols_get_lineno #define irix_core_find_nearest_line _bfd_nosymbols_find_nearest_line #define irix_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol #define irix_core_read_minisymbols _bfd_nosymbols_read_minisymbols #define irix_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol /* If somebody calls any byte-swapping routines, shoot them. */ static void swap_abort() { abort(); /* This way doesn't require any declaration for ANSI to fuck up */ } #define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort ) #define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort ) #define NO_SIGNED_GET \ ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort ) const bfd_target irix_core_vec = { "irix-core", bfd_target_unknown_flavour, BFD_ENDIAN_BIG, /* target byte order */ BFD_ENDIAN_BIG, /* target headers byte order */ (HAS_RELOC | EXEC_P | /* object flags */ HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ 0, /* symbol prefix */ ' ', /* ar_pad_char */ 16, /* ar_max_namelen */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */ NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */ { /* bfd_check_format */ _bfd_dummy_target, /* unknown format */ _bfd_dummy_target, /* object file */ _bfd_dummy_target, /* archive */ irix_core_core_file_p /* a core file */ }, { /* bfd_set_format */ bfd_false, bfd_false, bfd_false, bfd_false }, { /* bfd_write_contents */ bfd_false, bfd_false, bfd_false, bfd_false }, BFD_JUMP_TABLE_GENERIC (_bfd_generic), BFD_JUMP_TABLE_COPY (_bfd_generic), BFD_JUMP_TABLE_CORE (irix_core), BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive), BFD_JUMP_TABLE_SYMBOLS (irix_core), BFD_JUMP_TABLE_RELOCS (_bfd_norelocs), BFD_JUMP_TABLE_WRITE (_bfd_generic), BFD_JUMP_TABLE_LINK (_bfd_nolink), BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), NULL, (PTR) 0 /* backend_data */ }; #endif /* IRIX_CORE */
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