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https://github.com/darlinghq/darling-gdb.git
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244 lines
6.5 KiB
C
244 lines
6.5 KiB
C
/* BFD back-end for OSF/1 core files.
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Copyright 1993, 1994, 1995, 1998, 1999, 2001, 2002
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Free Software Foundation, Inc.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* This file can only be compiled on systems which use OSF/1 style
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core files. */
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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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#include <sys/user.h>
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#include <sys/core.h>
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/* forward declarations */
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static asection *make_bfd_asection
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PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma, file_ptr));
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static const bfd_target *osf_core_core_file_p
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PARAMS ((bfd *));
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static char *osf_core_core_file_failing_command
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PARAMS ((bfd *));
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static int osf_core_core_file_failing_signal
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PARAMS ((bfd *));
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static bfd_boolean osf_core_core_file_matches_executable_p
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PARAMS ((bfd *, bfd *));
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static void swap_abort
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PARAMS ((void));
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/* These are stored in the bfd's tdata */
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struct osf_core_struct
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{
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int sig;
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char cmd[MAXCOMLEN + 1];
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};
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#define core_hdr(bfd) ((bfd)->tdata.osf_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 = 8;
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return asect;
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}
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static const bfd_target *
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osf_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 core_filehdr core_header;
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bfd_size_type amt;
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amt = sizeof core_header;
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val = bfd_bread ((PTR) &core_header, amt, abfd);
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if (val != sizeof core_header)
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return NULL;
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if (strncmp (core_header.magic, "Core", 4) != 0)
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return NULL;
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core_hdr (abfd) = (struct osf_core_struct *)
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bfd_zalloc (abfd, (bfd_size_type) sizeof (struct osf_core_struct));
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if (!core_hdr (abfd))
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return NULL;
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strncpy (core_command (abfd), core_header.name, MAXCOMLEN + 1);
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core_signal (abfd) = core_header.signo;
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for (i = 0; i < core_header.nscns; i++)
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{
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struct core_scnhdr core_scnhdr;
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flagword flags;
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amt = sizeof core_scnhdr;
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val = bfd_bread ((PTR) &core_scnhdr, amt, abfd);
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if (val != sizeof core_scnhdr)
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break;
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/* Skip empty sections. */
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if (core_scnhdr.size == 0 || core_scnhdr.scnptr == 0)
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continue;
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switch (core_scnhdr.scntype)
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{
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case SCNRGN:
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secname = ".data";
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flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
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break;
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case SCNSTACK:
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secname = ".stack";
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flags = SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS;
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break;
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case SCNREGS:
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secname = ".reg";
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flags = SEC_HAS_CONTENTS;
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break;
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default:
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(*_bfd_error_handler) (_("Unhandled OSF/1 core file section type %d\n"),
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core_scnhdr.scntype);
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continue;
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}
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if (!make_bfd_asection (abfd, secname, flags,
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(bfd_size_type) core_scnhdr.size,
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(bfd_vma) core_scnhdr.vaddr,
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(file_ptr) core_scnhdr.scnptr))
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goto fail;
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}
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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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fail:
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bfd_release (abfd, core_hdr (abfd));
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core_hdr (abfd) = NULL;
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bfd_section_list_clear (abfd);
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return NULL;
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}
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static char *
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osf_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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/* ARGSUSED */
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static int
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osf_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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/* ARGSUSED */
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static bfd_boolean
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osf_core_core_file_matches_executable_p (core_bfd, exec_bfd)
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bfd *core_bfd ATTRIBUTE_UNUSED;
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bfd *exec_bfd ATTRIBUTE_UNUSED;
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{
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return TRUE; /* FIXME, We have no way of telling at this point */
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}
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/* If somebody calls any byte-swapping routines, shoot them. */
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static 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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const bfd_target osf_core_vec =
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{
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"osf-core",
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bfd_target_unknown_flavour,
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BFD_ENDIAN_LITTLE, /* target byte order */
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BFD_ENDIAN_LITTLE, /* 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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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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osf_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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BFD_JUMP_TABLE_GENERIC (_bfd_generic),
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BFD_JUMP_TABLE_COPY (_bfd_generic),
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BFD_JUMP_TABLE_CORE (osf_core),
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BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
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BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
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BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
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BFD_JUMP_TABLE_WRITE (_bfd_generic),
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BFD_JUMP_TABLE_LINK (_bfd_nolink),
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BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
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NULL,
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(PTR) 0 /* backend_data */
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};
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