From 252b5132c753830d5fd56823373aed85f2a0db63 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 3 May 1999 07:29:11 +0000 Subject: 19990502 sourceware import --- bfd/irix-core.c | 276 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 276 insertions(+) create mode 100644 bfd/irix-core.c (limited to 'bfd/irix-core.c') diff --git a/bfd/irix-core.c b/bfd/irix-core.c new file mode 100644 index 0000000..964ca20 --- /dev/null +++ b/bfd/irix-core.c @@ -0,0 +1,276 @@ +/* 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 + +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), + + (PTR) 0 /* backend_data */ +}; + +#endif /* IRIX_CORE */ -- cgit v1.1