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309 lines
9.4 KiB
C
309 lines
9.4 KiB
C
/* BFD back-end for Irix core files.
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Copyright 1993 Free Software Foundation, Inc.
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Written by Stu Grossman, Cygnus Support.
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Converted to back-end form by Ian Lance Taylor, Cygnus Support
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This file can only be compiled on systems which use Irix style core
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files (namely, Irix 4 and Irix 5, so far). In the config/XXXXXX.mh
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file for such a system add
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HDEFINES=-DIRIX_CORE
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HDEPFILES=irix-core.o
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*/
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#ifdef IRIX_CORE
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#include <core.out.h>
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struct sgi_core_struct
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{
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int sig;
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char cmd[CORE_NAMESIZE];
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};
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#define core_hdr(bfd) ((bfd)->tdata.sgi_core_data)
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#define core_signal(bfd) (core_hdr(bfd)->sig)
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#define core_command(bfd) (core_hdr(bfd)->cmd)
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static asection *
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make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
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bfd *abfd;
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CONST char *name;
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flagword flags;
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bfd_size_type _raw_size;
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bfd_vma vma;
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file_ptr filepos;
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{
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asection *asect;
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asect = bfd_make_section_anyway (abfd, name);
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if (!asect)
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return NULL;
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asect->flags = flags;
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asect->_raw_size = _raw_size;
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asect->vma = vma;
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asect->filepos = filepos;
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asect->alignment_power = 4;
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return asect;
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}
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static bfd_target *
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irix_core_core_file_p (abfd)
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bfd *abfd;
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{
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int val;
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int i;
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char *secname;
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struct coreout coreout;
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struct idesc *idg, *idf, *ids;
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val = bfd_read ((PTR)&coreout, 1, sizeof coreout, abfd);
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if (val != sizeof coreout)
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{
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if (bfd_get_error () != bfd_error_system_call)
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bfd_set_error (bfd_error_wrong_format);
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return 0;
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}
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if (coreout.c_magic != CORE_MAGIC
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|| coreout.c_version != CORE_VERSION1)
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return 0;
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core_hdr (abfd) = (struct sgi_core_struct *) bfd_zalloc (abfd, sizeof (struct sgi_core_struct));
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if (!core_hdr (abfd))
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return NULL;
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strncpy (core_command (abfd), coreout.c_name, CORE_NAMESIZE);
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core_signal (abfd) = coreout.c_sigcause;
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if (bfd_seek (abfd, coreout.c_vmapoffset, SEEK_SET) != 0)
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return NULL;
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for (i = 0; i < coreout.c_nvmap; i++)
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{
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struct vmap vmap;
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val = bfd_read ((PTR)&vmap, 1, sizeof vmap, abfd);
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if (val != sizeof vmap)
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break;
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switch (vmap.v_type)
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{
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case VDATA:
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secname = ".data";
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break;
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case VSTACK:
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secname = ".stack";
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break;
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#ifdef VMAPFILE
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case VMAPFILE:
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secname = ".mapfile";
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break;
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#endif
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default:
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continue;
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}
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if (!make_bfd_asection (abfd, secname,
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SEC_ALLOC+SEC_LOAD+SEC_HAS_CONTENTS,
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vmap.v_len,
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vmap.v_vaddr,
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vmap.v_offset,
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2))
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return NULL;
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}
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/* Make sure that the regs are contiguous within the core file. */
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idg = &coreout.c_idesc[I_GPREGS];
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idf = &coreout.c_idesc[I_FPREGS];
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ids = &coreout.c_idesc[I_SPECREGS];
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if (idg->i_offset + idg->i_len != idf->i_offset
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|| idf->i_offset + idf->i_len != ids->i_offset)
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return 0; /* Can't deal with non-contig regs */
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if (bfd_seek (abfd, idg->i_offset, SEEK_SET) != 0)
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return NULL;
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make_bfd_asection (abfd, ".reg",
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SEC_ALLOC+SEC_HAS_CONTENTS,
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idg->i_len + idf->i_len + ids->i_len,
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0,
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idg->i_offset);
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/* OK, we believe you. You're a core file (sure, sure). */
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return abfd->xvec;
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}
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static char *
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irix_core_core_file_failing_command (abfd)
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bfd *abfd;
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{
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return core_command (abfd);
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}
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static int
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irix_core_core_file_failing_signal (abfd)
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bfd *abfd;
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{
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return core_signal (abfd);
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}
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static boolean
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irix_core_core_file_matches_executable_p (core_bfd, exec_bfd)
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bfd *core_bfd, *exec_bfd;
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{
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return true; /* XXX - FIXME */
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}
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static asymbol *
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irix_core_make_empty_symbol (abfd)
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bfd *abfd;
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{
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asymbol *new = (asymbol *) bfd_zalloc (abfd, sizeof (asymbol));
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if (new)
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new->the_bfd = abfd;
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return new;
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}
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#define irix_core_openr_next_archived_file bfd_generic_openr_next_archived_file
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#define irix_core_generic_stat_arch_elt bfd_generic_stat_arch_elt
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#define irix_core_slurp_armap bfd_false
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#define irix_core_slurp_extended_name_table bfd_true
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#define irix_core_write_armap (boolean (*) PARAMS \
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((bfd *arch, unsigned int elength, struct orl *map, \
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unsigned int orl_count, int stridx))) bfd_false
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#define irix_core_truncate_arname bfd_dont_truncate_arname
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#define irix_core_close_and_cleanup bfd_generic_close_and_cleanup
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#define irix_core_set_section_contents (boolean (*) PARAMS \
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((bfd *abfd, asection *section, PTR data, file_ptr offset, \
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bfd_size_type count))) bfd_generic_set_section_contents
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#define irix_core_get_section_contents bfd_generic_get_section_contents
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#define irix_core_new_section_hook (boolean (*) PARAMS \
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((bfd *, sec_ptr))) bfd_true
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#define irix_core_get_symtab_upper_bound bfd_0l
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#define irix_core_get_symtab (long (*) PARAMS \
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((bfd *, struct symbol_cache_entry **))) bfd_0l
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#define irix_core_get_reloc_upper_bound (long (*) PARAMS \
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((bfd *, sec_ptr))) bfd_0l
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#define irix_core_canonicalize_reloc (long (*) PARAMS \
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((bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0l
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#define irix_core_print_symbol (void (*) PARAMS \
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((bfd *, PTR, struct symbol_cache_entry *, \
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bfd_print_symbol_type))) bfd_false
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#define irix_core_get_symbol_info (void (*) PARAMS \
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((bfd *, struct symbol_cache_entry *, \
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symbol_info *))) bfd_false
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#define irix_core_get_lineno (alent * (*) PARAMS \
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((bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
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#define irix_core_set_arch_mach (boolean (*) PARAMS \
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((bfd *, enum bfd_architecture, unsigned long))) bfd_false
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#define irix_core_find_nearest_line (boolean (*) PARAMS \
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((bfd *abfd, struct sec *section, \
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struct symbol_cache_entry **symbols,bfd_vma offset, \
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CONST char **file, CONST char **func, unsigned int *line))) bfd_false
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#define irix_core_sizeof_headers (int (*) PARAMS \
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((bfd *, boolean))) bfd_0
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#define irix_core_bfd_debug_info_start bfd_void
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#define irix_core_bfd_debug_info_end bfd_void
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#define irix_core_bfd_debug_info_accumulate (void (*) PARAMS \
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((bfd *, struct sec *))) bfd_void
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#define irix_core_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
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#define irix_core_bfd_relax_section bfd_generic_relax_section
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#define irix_core_bfd_reloc_type_lookup \
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((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
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#define irix_core_bfd_make_debug_symbol \
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((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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#define irix_core_bfd_link_hash_table_create \
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((struct bfd_link_hash_table *(*) PARAMS ((bfd *))) bfd_nullvoidptr)
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#define irix_core_bfd_link_add_symbols \
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((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
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#define irix_core_bfd_final_link \
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((boolean (*) PARAMS ((bfd *, struct bfd_link_info *))) bfd_false)
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#define irix_core_bfd_copy_private_section_data \
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((boolean (*) PARAMS ((bfd *, asection *, bfd *, asection *))) bfd_false)
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#define irix_core_bfd_copy_private_bfd_data \
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((boolean (*) PARAMS ((bfd *, bfd *))) bfd_false)
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#define irix_core_bfd_is_local_label \
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((boolean (*) PARAMS ((bfd *, asymbol *))) bfd_false)
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#define irix_core_bfd_free_cached_info bfd_true
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/* If somebody calls any byte-swapping routines, shoot them. */
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void
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swap_abort()
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{
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abort(); /* This way doesn't require any declaration for ANSI to fuck up */
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}
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#define NO_GET ((bfd_vma (*) PARAMS (( const bfd_byte *))) swap_abort )
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#define NO_PUT ((void (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
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#define NO_SIGNED_GET \
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((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
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bfd_target irix_core_vec =
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{
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"irix-core",
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bfd_target_unknown_flavour,
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true, /* target byte order */
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true, /* target headers byte order */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* symbol prefix */
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' ', /* ar_pad_char */
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16, /* ar_max_namelen */
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3, /* minimum alignment power */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit data */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit data */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit data */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 64 bit hdrs */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 32 bit hdrs */
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NO_GET, NO_SIGNED_GET, NO_PUT, /* 16 bit hdrs */
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{ /* bfd_check_format */
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_bfd_dummy_target, /* unknown format */
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_bfd_dummy_target, /* object file */
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_bfd_dummy_target, /* archive */
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irix_core_core_file_p /* a core file */
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},
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{ /* bfd_set_format */
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bfd_false, bfd_false,
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bfd_false, bfd_false
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},
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{ /* bfd_write_contents */
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bfd_false, bfd_false,
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bfd_false, bfd_false
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},
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JUMP_TABLE(irix_core),
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(PTR) 0 /* backend_data */
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};
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#endif /* IRIX_CORE */
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