/* BFD back end for Lynx core files
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/* BFD back end for Lynx core files
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Copyright 1993, 1994, 1995, 2001, 2002, 2004, 2006, 2007
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Copyright 1993, 1994, 1995, 2001, 2002, 2004, 2006, 2007
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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Written by Stu Grossman of Cygnus Support.
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Written by Stu Grossman of Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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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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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfd.h"
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#include "libbfd.h"
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#include "libbfd.h"
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#ifdef LYNX_CORE
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#ifdef LYNX_CORE
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#include <sys/conf.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/kernel.h>
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/* sys/kernel.h should define this, but doesn't always, sigh. */
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/* sys/kernel.h should define this, but doesn't always, sigh. */
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#ifndef __LYNXOS
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#ifndef __LYNXOS
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#define __LYNXOS
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#define __LYNXOS
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#endif
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#endif
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#include <sys/mem.h>
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#include <sys/mem.h>
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#include <sys/signal.h>
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#include <sys/signal.h>
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#include <sys/time.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/resource.h>
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#include <sys/itimer.h>
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#include <sys/itimer.h>
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#include <sys/file.h>
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#include <sys/file.h>
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#include <sys/proc.h>
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#include <sys/proc.h>
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/* These are stored in the bfd's tdata */
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/* These are stored in the bfd's tdata */
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struct lynx_core_struct
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struct lynx_core_struct
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{
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{
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int sig;
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int sig;
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char cmd[PNMLEN + 1];
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char cmd[PNMLEN + 1];
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};
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};
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#define core_hdr(bfd) ((bfd)->tdata.lynx_core_data)
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#define core_hdr(bfd) ((bfd)->tdata.lynx_core_data)
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#define core_signal(bfd) (core_hdr(bfd)->sig)
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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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#define core_command(bfd) (core_hdr(bfd)->cmd)
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#define lynx_core_file_matches_executable_p generic_core_file_matches_executable_p
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#define lynx_core_file_matches_executable_p generic_core_file_matches_executable_p
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/* Handle Lynx core dump file. */
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/* Handle Lynx core dump file. */
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static asection *
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static asection *
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make_bfd_asection (abfd, name, flags, size, vma, filepos)
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make_bfd_asection (abfd, name, flags, size, vma, filepos)
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bfd *abfd;
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bfd *abfd;
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const char *name;
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const char *name;
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flagword flags;
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flagword flags;
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bfd_size_type size;
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bfd_size_type size;
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bfd_vma vma;
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bfd_vma vma;
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file_ptr filepos;
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file_ptr filepos;
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{
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{
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asection *asect;
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asection *asect;
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char *newname;
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char *newname;
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newname = bfd_alloc (abfd, (bfd_size_type) strlen (name) + 1);
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newname = bfd_alloc (abfd, (bfd_size_type) strlen (name) + 1);
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if (!newname)
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if (!newname)
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return NULL;
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return NULL;
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strcpy (newname, name);
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strcpy (newname, name);
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asect = bfd_make_section_with_flags (abfd, newname, flags);
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asect = bfd_make_section_with_flags (abfd, newname, flags);
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if (!asect)
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if (!asect)
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return NULL;
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return NULL;
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asect->size = size;
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asect->size = size;
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asect->vma = vma;
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asect->vma = vma;
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asect->filepos = filepos;
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asect->filepos = filepos;
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asect->alignment_power = 2;
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asect->alignment_power = 2;
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return asect;
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return asect;
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}
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}
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const bfd_target *
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const bfd_target *
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lynx_core_file_p (abfd)
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lynx_core_file_p (abfd)
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bfd *abfd;
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bfd *abfd;
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{
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{
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int secnum;
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int secnum;
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struct pssentry pss;
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struct pssentry pss;
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bfd_size_type tcontext_size;
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bfd_size_type tcontext_size;
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core_st_t *threadp;
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core_st_t *threadp;
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int pagesize;
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int pagesize;
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asection *newsect;
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asection *newsect;
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bfd_size_type amt;
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bfd_size_type amt;
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pagesize = getpagesize (); /* Serious cross-target issue here... This
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pagesize = getpagesize (); /* Serious cross-target issue here... This
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really needs to come from a system-specific
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really needs to come from a system-specific
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header file. */
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header file. */
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/* Get the pss entry from the core file */
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/* Get the pss entry from the core file */
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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return NULL;
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return NULL;
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amt = sizeof pss;
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amt = sizeof pss;
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if (bfd_bread ((void *) &pss, amt, abfd) != amt)
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if (bfd_bread ((void *) &pss, amt, abfd) != amt)
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{
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{
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/* Too small to be a core file */
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/* Too small to be a core file */
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if (bfd_get_error () != bfd_error_system_call)
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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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bfd_set_error (bfd_error_wrong_format);
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return NULL;
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return NULL;
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}
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}
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amt = sizeof (struct lynx_core_struct);
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amt = sizeof (struct lynx_core_struct);
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core_hdr (abfd) = (struct lynx_core_struct *) bfd_zalloc (abfd, amt);
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core_hdr (abfd) = (struct lynx_core_struct *) bfd_zalloc (abfd, amt);
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if (!core_hdr (abfd))
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if (!core_hdr (abfd))
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return NULL;
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return NULL;
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strncpy (core_command (abfd), pss.pname, PNMLEN + 1);
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strncpy (core_command (abfd), pss.pname, PNMLEN + 1);
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/* Compute the size of the thread contexts */
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/* Compute the size of the thread contexts */
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tcontext_size = pss.threadcnt * sizeof (core_st_t);
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tcontext_size = pss.threadcnt * sizeof (core_st_t);
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/* Allocate space for the thread contexts */
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/* Allocate space for the thread contexts */
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threadp = (core_st_t *) bfd_alloc (abfd, tcontext_size);
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threadp = (core_st_t *) bfd_alloc (abfd, tcontext_size);
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if (!threadp)
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if (!threadp)
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goto fail;
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goto fail;
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/* Save thread contexts */
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/* Save thread contexts */
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if (bfd_seek (abfd, (file_ptr) pagesize, SEEK_SET) != 0)
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if (bfd_seek (abfd, (file_ptr) pagesize, SEEK_SET) != 0)
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goto fail;
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goto fail;
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if (bfd_bread ((void *) threadp, tcontext_size, abfd) != tcontext_size)
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if (bfd_bread ((void *) threadp, tcontext_size, abfd) != tcontext_size)
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{
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{
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/* Probably too small to be a core file */
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/* Probably too small to be a core file */
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if (bfd_get_error () != bfd_error_system_call)
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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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bfd_set_error (bfd_error_wrong_format);
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goto fail;
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goto fail;
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}
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}
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core_signal (abfd) = threadp->currsig;
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core_signal (abfd) = threadp->currsig;
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newsect = make_bfd_asection (abfd, ".stack",
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newsect = make_bfd_asection (abfd, ".stack",
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SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
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SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
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pss.ssize,
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pss.ssize,
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pss.slimit,
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pss.slimit,
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pagesize + tcontext_size);
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pagesize + tcontext_size);
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if (!newsect)
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if (!newsect)
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goto fail;
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goto fail;
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newsect = make_bfd_asection (abfd, ".data",
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newsect = make_bfd_asection (abfd, ".data",
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SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
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SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
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pss.data_len + pss.bss_len,
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pss.data_len + pss.bss_len,
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pss.data_start,
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pss.data_start,
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pagesize + tcontext_size + pss.ssize
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pagesize + tcontext_size + pss.ssize
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#if defined (SPARC) || defined (__SPARC__)
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#if defined (SPARC) || defined (__SPARC__)
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/* SPARC Lynx seems to start dumping
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/* SPARC Lynx seems to start dumping
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the .data section at a page
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the .data section at a page
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boundary. It's OK to check a
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boundary. It's OK to check a
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#define like SPARC here because this
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#define like SPARC here because this
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file can only be compiled on a Lynx
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file can only be compiled on a Lynx
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host. */
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host. */
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+ pss.data_start % pagesize
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+ pss.data_start % pagesize
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#endif
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#endif
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);
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);
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if (!newsect)
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if (!newsect)
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goto fail;
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goto fail;
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/* And, now for the .reg/XXX pseudo sections. Each thread has it's own
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/* And, now for the .reg/XXX pseudo sections. Each thread has it's own
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.reg/XXX section, where XXX is the thread id (without leading zeros). The
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.reg/XXX section, where XXX is the thread id (without leading zeros). The
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currently running thread (at the time of the core dump) also has an alias
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currently running thread (at the time of the core dump) also has an alias
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called `.reg' (just to keep GDB happy). Note that we use `.reg/XXX' as
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called `.reg' (just to keep GDB happy). Note that we use `.reg/XXX' as
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opposed to `.regXXX' because GDB expects that .reg2 will be the floating-
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opposed to `.regXXX' because GDB expects that .reg2 will be the floating-
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point registers. */
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point registers. */
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newsect = make_bfd_asection (abfd, ".reg",
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newsect = make_bfd_asection (abfd, ".reg",
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SEC_HAS_CONTENTS,
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SEC_HAS_CONTENTS,
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sizeof (core_st_t),
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sizeof (core_st_t),
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0,
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0,
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pagesize);
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pagesize);
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if (!newsect)
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if (!newsect)
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goto fail;
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goto fail;
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for (secnum = 0; secnum < pss.threadcnt; secnum++)
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for (secnum = 0; secnum < pss.threadcnt; secnum++)
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{
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{
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char secname[100];
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char secname[100];
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sprintf (secname, ".reg/%d", BUILDPID (0, threadp[secnum].tid));
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sprintf (secname, ".reg/%d", BUILDPID (0, threadp[secnum].tid));
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newsect = make_bfd_asection (abfd, secname,
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newsect = make_bfd_asection (abfd, secname,
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SEC_HAS_CONTENTS,
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SEC_HAS_CONTENTS,
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sizeof (core_st_t),
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sizeof (core_st_t),
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0,
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0,
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pagesize + secnum * sizeof (core_st_t));
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pagesize + secnum * sizeof (core_st_t));
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if (!newsect)
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if (!newsect)
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goto fail;
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goto fail;
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}
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}
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return abfd->xvec;
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return abfd->xvec;
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fail:
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fail:
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bfd_release (abfd, core_hdr (abfd));
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bfd_release (abfd, core_hdr (abfd));
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core_hdr (abfd) = NULL;
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core_hdr (abfd) = NULL;
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bfd_section_list_clear (abfd);
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bfd_section_list_clear (abfd);
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return NULL;
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return NULL;
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}
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}
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char *
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char *
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lynx_core_file_failing_command (abfd)
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lynx_core_file_failing_command (abfd)
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bfd *abfd;
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bfd *abfd;
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{
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{
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return core_command (abfd);
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return core_command (abfd);
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}
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}
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int
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int
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lynx_core_file_failing_signal (abfd)
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lynx_core_file_failing_signal (abfd)
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bfd *abfd;
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bfd *abfd;
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{
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{
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return core_signal (abfd);
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return core_signal (abfd);
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}
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}
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#endif /* LYNX_CORE */
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#endif /* LYNX_CORE */
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