/* IBM RS/6000 "XCOFF" back-end for BFD.
|
/* IBM RS/6000 "XCOFF" back-end for BFD.
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
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Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
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2001, 2002
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2001, 2002
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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FIXME: Can someone provide a transliteration of this name into ASCII?
|
FIXME: Can someone provide a transliteration of this name into ASCII?
|
Using the following chars caused a compiler warning on HIUX (so I replaced
|
Using the following chars caused a compiler warning on HIUX (so I replaced
|
them with octal escapes), and isn't useful without an understanding of what
|
them with octal escapes), and isn't useful without an understanding of what
|
character set it is.
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character set it is.
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Written by Metin G. Ozisik, Mimi Ph\373\364ng-Th\345o V\365,
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Written by Metin G. Ozisik, Mimi Ph\373\364ng-Th\345o V\365,
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and John Gilmore.
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and John Gilmore.
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Archive support from Damon A. Permezel.
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Archive support from Damon A. Permezel.
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Contributed by IBM Corporation and Cygnus Support.
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Contributed by IBM Corporation and Cygnus Support.
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|
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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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|
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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 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
|
(at your option) any later version.
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(at your option) any later version.
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|
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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
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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
|
You should have received a copy of the GNU General Public License
|
along with this program; if not, write to the Free Software
|
along with this program; if not, write to the Free Software
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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|
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/* This port currently only handles reading object files, except when
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/* This port currently only handles reading object files, except when
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compiled on an RS/6000 host. -- no archive support, no core files.
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compiled on an RS/6000 host. -- no archive support, no core files.
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In all cases, it does not support writing.
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In all cases, it does not support writing.
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|
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This is in a separate file from coff-rs6000.c, because it includes
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This is in a separate file from coff-rs6000.c, because it includes
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system include files that conflict with coff/rs6000.h. */
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system include files that conflict with coff/rs6000.h. */
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|
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/* Internalcoff.h and coffcode.h modify themselves based on this flag. */
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/* Internalcoff.h and coffcode.h modify themselves based on this flag. */
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#define RS6000COFF_C 1
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#define RS6000COFF_C 1
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|
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/* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so
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/* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so
|
we have to define _LONG_LONG for older versions of gcc to get the
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we have to define _LONG_LONG for older versions of gcc to get the
|
proper alignments in the user structure. */
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proper alignments in the user structure. */
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#if defined(_AIX41) && !defined(_LONG_LONG)
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#if defined(_AIX41) && !defined(_LONG_LONG)
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#define _LONG_LONG
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#define _LONG_LONG
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#endif
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#endif
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|
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#include "bfd.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "libbfd.h"
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|
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#ifdef AIX_CORE
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#ifdef AIX_CORE
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|
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/* AOUTHDR is defined by the above. We need another defn of it, from the
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/* AOUTHDR is defined by the above. We need another defn of it, from the
|
system include files. Punt the old one and get us a new name for the
|
system include files. Punt the old one and get us a new name for the
|
typedef in the system include files. */
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typedef in the system include files. */
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#ifdef AOUTHDR
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#ifdef AOUTHDR
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#undef AOUTHDR
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#undef AOUTHDR
|
#endif
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#endif
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#define AOUTHDR second_AOUTHDR
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#define AOUTHDR second_AOUTHDR
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|
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#undef SCNHDR
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#undef SCNHDR
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|
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/* ------------------------------------------------------------------------ */
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/* ------------------------------------------------------------------------ */
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/* Support for core file stuff.. */
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/* Support for core file stuff.. */
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/* ------------------------------------------------------------------------ */
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/* ------------------------------------------------------------------------ */
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|
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#include <sys/user.h>
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#include <sys/user.h>
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#define __LDINFO_PTRACE32__ /* for __ld_info32 */
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#define __LDINFO_PTRACE32__ /* for __ld_info32 */
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#define __LDINFO_PTRACE64__ /* for __ld_info64 */
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#define __LDINFO_PTRACE64__ /* for __ld_info64 */
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#include <sys/ldr.h>
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#include <sys/ldr.h>
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#include <sys/core.h>
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#include <sys/core.h>
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#include <sys/systemcfg.h>
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#include <sys/systemcfg.h>
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|
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#define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any)
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#define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any)
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|
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/* AIX 4.1 changed the names and locations of a few items in the core file.
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/* AIX 4.1 changed the names and locations of a few items in the core file.
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AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for
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AIX 4.3 defined an entirely new structure, core_dumpx, but kept support for
|
the previous 4.1 structure, core_dump.
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the previous 4.1 structure, core_dump.
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|
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AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and
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AIX_CORE_DUMPX_CORE is defined (by configure) on AIX 4.3+, and
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CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX
|
CORE_VERSION_1 is defined (by AIX core.h) as 2 on AIX 4.3+ and as 1 on AIX
|
4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1
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4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1
|
or else defines it as 0. */
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or else defines it as 0. */
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|
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#if defined(CORE_VERSION_1) && !CORE_VERSION_1
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#if defined(CORE_VERSION_1) && !CORE_VERSION_1
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# undef CORE_VERSION_1
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# undef CORE_VERSION_1
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#endif
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#endif
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|
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/* The following union and macros allow this module to compile on all AIX
|
/* The following union and macros allow this module to compile on all AIX
|
versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*()
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versions and to handle both core_dumpx and core_dump on 4.3+. CNEW_*()
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and COLD_*() macros respectively retrieve core_dumpx and core_dump
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and COLD_*() macros respectively retrieve core_dumpx and core_dump
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values. */
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values. */
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|
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/* Union of 32-bit and 64-bit versions of ld_info. */
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/* Union of 32-bit and 64-bit versions of ld_info. */
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|
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typedef union {
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typedef union {
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#ifdef __ld_info32
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#ifdef __ld_info32
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struct __ld_info32 l32;
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struct __ld_info32 l32;
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struct __ld_info64 l64;
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struct __ld_info64 l64;
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#else
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#else
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struct ld_info l32;
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struct ld_info l32;
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struct ld_info l64;
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struct ld_info l64;
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#endif
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#endif
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} LdInfo;
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} LdInfo;
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|
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/* Union of old and new core dump structures. */
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/* Union of old and new core dump structures. */
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|
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typedef union {
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typedef union {
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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struct core_dumpx new; /* new AIX 4.3+ core dump */
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struct core_dumpx new; /* new AIX 4.3+ core dump */
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#else
|
#else
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struct core_dump new; /* for simpler coding */
|
struct core_dump new; /* for simpler coding */
|
#endif
|
#endif
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struct core_dump old; /* old AIX 4.2- core dump, still used on
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struct core_dump old; /* old AIX 4.2- core dump, still used on
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4.3+ with appropriate SMIT config */
|
4.3+ with appropriate SMIT config */
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} CoreHdr;
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} CoreHdr;
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|
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/* Union of old and new vm_info structures. */
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/* Union of old and new vm_info structures. */
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|
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#ifdef CORE_VERSION_1
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#ifdef CORE_VERSION_1
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typedef union {
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typedef union {
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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struct vm_infox new;
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struct vm_infox new;
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#else
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#else
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struct vm_info new;
|
struct vm_info new;
|
#endif
|
#endif
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struct vm_info old;
|
struct vm_info old;
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} VmInfo;
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} VmInfo;
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#endif
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#endif
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|
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/* Return whether CoreHdr C is in new or old format. */
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/* Return whether CoreHdr C is in new or old format. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CORE_NEW(c) (!(c).old.c_entries)
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# define CORE_NEW(c) (!(c).old.c_entries)
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#else
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#else
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# define CORE_NEW(c) 0
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# define CORE_NEW(c) 0
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#endif
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#endif
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|
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/* Return the c_stackorg field from struct core_dumpx C. */
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/* Return the c_stackorg field from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_STACKORG(c) (c).c_stackorg
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# define CNEW_STACKORG(c) (c).c_stackorg
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#else
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#else
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# define CNEW_STACKORG(c) 0
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# define CNEW_STACKORG(c) 0
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#endif
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#endif
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|
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/* Return the offset to the loader region from struct core_dump C. */
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/* Return the offset to the loader region from struct core_dump C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_LOADER(c) (c).c_loader
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# define CNEW_LOADER(c) (c).c_loader
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#else
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#else
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# define CNEW_LOADER(c) 0
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# define CNEW_LOADER(c) 0
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#endif
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#endif
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|
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/* Return the offset to the loader region from struct core_dump C. */
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/* Return the offset to the loader region from struct core_dump C. */
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|
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#define COLD_LOADER(c) (c).c_tab
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#define COLD_LOADER(c) (c).c_tab
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|
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/* Return the c_lsize field from struct core_dumpx C. */
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/* Return the c_lsize field from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_LSIZE(c) (c).c_lsize
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# define CNEW_LSIZE(c) (c).c_lsize
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#else
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#else
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# define CNEW_LSIZE(c) 0
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# define CNEW_LSIZE(c) 0
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#endif
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#endif
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|
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/* Return the c_dataorg field from struct core_dumpx C. */
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/* Return the c_dataorg field from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_DATAORG(c) (c).c_dataorg
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# define CNEW_DATAORG(c) (c).c_dataorg
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#else
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#else
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# define CNEW_DATAORG(c) 0
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# define CNEW_DATAORG(c) 0
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#endif
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#endif
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|
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/* Return the c_datasize field from struct core_dumpx C. */
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/* Return the c_datasize field from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_DATASIZE(c) (c).c_datasize
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# define CNEW_DATASIZE(c) (c).c_datasize
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#else
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#else
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# define CNEW_DATASIZE(c) 0
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# define CNEW_DATASIZE(c) 0
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#endif
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#endif
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|
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/* Return the c_impl field from struct core_dumpx C. */
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/* Return the c_impl field from struct core_dumpx C. */
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#if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE)
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#if defined (HAVE_ST_C_IMPL) || defined (AIX_5_CORE)
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# define CNEW_IMPL(c) (c).c_impl
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# define CNEW_IMPL(c) (c).c_impl
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#else
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#else
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# define CNEW_IMPL(c) 0
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# define CNEW_IMPL(c) 0
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#endif
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#endif
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|
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/* Return the command string from struct core_dumpx C. */
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/* Return the command string from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_COMM(c) (c).c_u.U_proc.pi_comm
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# define CNEW_COMM(c) (c).c_u.U_proc.pi_comm
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#else
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#else
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# define CNEW_COMM(c) 0
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# define CNEW_COMM(c) 0
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#endif
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#endif
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|
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/* Return the command string from struct core_dump C. */
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/* Return the command string from struct core_dump C. */
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|
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#ifdef CORE_VERSION_1
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#ifdef CORE_VERSION_1
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# define COLD_COMM(c) (c).c_u.U_comm
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# define COLD_COMM(c) (c).c_u.U_comm
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#else
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#else
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# define COLD_COMM(c) (c).c_u.u_comm
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# define COLD_COMM(c) (c).c_u.u_comm
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#endif
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#endif
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|
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/* Return the struct __context64 pointer from struct core_dumpx C. */
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/* Return the struct __context64 pointer from struct core_dumpx C. */
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|
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#ifdef AIX_CORE_DUMPX_CORE
|
#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64
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# define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64
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#else
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#else
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# define CNEW_CONTEXT64(c) c
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# define CNEW_CONTEXT64(c) c
|
#endif
|
#endif
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|
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/* Return the struct mstsave pointer from struct core_dumpx C. */
|
/* Return the struct mstsave pointer from struct core_dumpx C. */
|
|
|
#ifdef AIX_CORE_DUMPX_CORE
|
#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32
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# define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32
|
#else
|
#else
|
# define CNEW_MSTSAVE(c) c
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# define CNEW_MSTSAVE(c) c
|
#endif
|
#endif
|
|
|
/* Return the struct mstsave pointer from struct core_dump C. */
|
/* Return the struct mstsave pointer from struct core_dump C. */
|
|
|
#ifdef CORE_VERSION_1
|
#ifdef CORE_VERSION_1
|
# define COLD_MSTSAVE(c) (c).c_mst
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# define COLD_MSTSAVE(c) (c).c_mst
|
#else
|
#else
|
# define COLD_MSTSAVE(c) (c).c_u.u_save
|
# define COLD_MSTSAVE(c) (c).c_u.u_save
|
#endif
|
#endif
|
|
|
/* Return whether struct core_dumpx is from a 64-bit process. */
|
/* Return whether struct core_dumpx is from a 64-bit process. */
|
|
|
#ifdef AIX_CORE_DUMPX_CORE
|
#ifdef AIX_CORE_DUMPX_CORE
|
# define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc)
|
# define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc)
|
#else
|
#else
|
# define CNEW_PROC64(c) 0
|
# define CNEW_PROC64(c) 0
|
#endif
|
#endif
|
|
|
/* Magic end-of-stack addresses for old core dumps. This is _very_ fragile,
|
/* Magic end-of-stack addresses for old core dumps. This is _very_ fragile,
|
but I don't see any easy way to get that info right now. */
|
but I don't see any easy way to get that info right now. */
|
|
|
#ifdef CORE_VERSION_1
|
#ifdef CORE_VERSION_1
|
# define COLD_STACKEND 0x2ff23000
|
# define COLD_STACKEND 0x2ff23000
|
#else
|
#else
|
# define COLD_STACKEND 0x2ff80000
|
# define COLD_STACKEND 0x2ff80000
|
#endif
|
#endif
|
|
|
/* Size of the leading portion that old and new core dump structures have in
|
/* Size of the leading portion that old and new core dump structures have in
|
common. */
|
common. */
|
#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
|
#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
|
+ sizeof (((struct core_dump *) 0)->c_entries))
|
+ sizeof (((struct core_dump *) 0)->c_entries))
|
|
|
/* Try to read into CORE the header from the core file associated with ABFD.
|
/* Try to read into CORE the header from the core file associated with ABFD.
|
Return success. */
|
Return success. */
|
|
|
static boolean
|
static boolean
|
read_hdr (bfd *abfd, CoreHdr *core)
|
read_hdr (bfd *abfd, CoreHdr *core)
|
{
|
{
|
bfd_size_type size;
|
bfd_size_type size;
|
|
|
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
|
return false;
|
return false;
|
|
|
/* Read the leading portion that old and new core dump structures have in
|
/* Read the leading portion that old and new core dump structures have in
|
common. */
|
common. */
|
size = CORE_COMMONSZ;
|
size = CORE_COMMONSZ;
|
if (bfd_bread (core, size, abfd) != size)
|
if (bfd_bread (core, size, abfd) != size)
|
return false;
|
return false;
|
|
|
/* Read the trailing portion of the structure. */
|
/* Read the trailing portion of the structure. */
|
if (CORE_NEW (*core))
|
if (CORE_NEW (*core))
|
size = sizeof (core->new);
|
size = sizeof (core->new);
|
else
|
else
|
size = sizeof (core->old);
|
size = sizeof (core->old);
|
size -= CORE_COMMONSZ;
|
size -= CORE_COMMONSZ;
|
return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size;
|
return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size;
|
}
|
}
|
|
|
static asection *
|
static asection *
|
make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
|
make_bfd_asection (abfd, name, flags, _raw_size, vma, filepos)
|
bfd *abfd;
|
bfd *abfd;
|
const char *name;
|
const char *name;
|
flagword flags;
|
flagword flags;
|
bfd_size_type _raw_size;
|
bfd_size_type _raw_size;
|
bfd_vma vma;
|
bfd_vma vma;
|
file_ptr filepos;
|
file_ptr filepos;
|
{
|
{
|
asection *asect;
|
asection *asect;
|
|
|
asect = bfd_make_section_anyway (abfd, name);
|
asect = bfd_make_section_anyway (abfd, name);
|
if (!asect)
|
if (!asect)
|
return NULL;
|
return NULL;
|
|
|
asect->flags = flags;
|
asect->flags = flags;
|
asect->_raw_size = _raw_size;
|
asect->_raw_size = _raw_size;
|
asect->vma = vma;
|
asect->vma = vma;
|
asect->filepos = filepos;
|
asect->filepos = filepos;
|
asect->alignment_power = 8;
|
asect->alignment_power = 8;
|
|
|
return asect;
|
return asect;
|
}
|
}
|
|
|
/* Decide if a given bfd represents a `core' file or not. There really is no
|
/* Decide if a given bfd represents a `core' file or not. There really is no
|
magic number or anything like, in rs6000coff. */
|
magic number or anything like, in rs6000coff. */
|
|
|
const bfd_target *
|
const bfd_target *
|
rs6000coff_core_p (abfd)
|
rs6000coff_core_p (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
CoreHdr core;
|
CoreHdr core;
|
struct stat statbuf;
|
struct stat statbuf;
|
bfd_size_type size;
|
bfd_size_type size;
|
char *tmpptr;
|
char *tmpptr;
|
|
|
/* Values from new and old core structures. */
|
/* Values from new and old core structures. */
|
int c_flag;
|
int c_flag;
|
file_ptr c_stack, c_regoff, c_loader;
|
file_ptr c_stack, c_regoff, c_loader;
|
bfd_size_type c_size, c_regsize, c_lsize;
|
bfd_size_type c_size, c_regsize, c_lsize;
|
bfd_vma c_stackend;
|
bfd_vma c_stackend;
|
void *c_regptr;
|
void *c_regptr;
|
int proc64;
|
int proc64;
|
|
|
if (!read_hdr (abfd, &core))
|
if (!read_hdr (abfd, &core))
|
{
|
{
|
if (bfd_get_error () != bfd_error_system_call)
|
if (bfd_get_error () != bfd_error_system_call)
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Copy fields from new or old core structure. */
|
/* Copy fields from new or old core structure. */
|
if (CORE_NEW (core))
|
if (CORE_NEW (core))
|
{
|
{
|
c_flag = core.new.c_flag;
|
c_flag = core.new.c_flag;
|
c_stack = (file_ptr) core.new.c_stack;
|
c_stack = (file_ptr) core.new.c_stack;
|
c_size = core.new.c_size;
|
c_size = core.new.c_size;
|
c_stackend = CNEW_STACKORG (core.new) + c_size;
|
c_stackend = CNEW_STACKORG (core.new) + c_size;
|
c_lsize = CNEW_LSIZE (core.new);
|
c_lsize = CNEW_LSIZE (core.new);
|
c_loader = CNEW_LOADER (core.new);
|
c_loader = CNEW_LOADER (core.new);
|
proc64 = CNEW_PROC64 (core.new);
|
proc64 = CNEW_PROC64 (core.new);
|
}
|
}
|
else
|
else
|
{
|
{
|
c_flag = core.old.c_flag;
|
c_flag = core.old.c_flag;
|
c_stack = (file_ptr) core.old.c_stack;
|
c_stack = (file_ptr) core.old.c_stack;
|
c_size = core.old.c_size;
|
c_size = core.old.c_size;
|
c_stackend = COLD_STACKEND;
|
c_stackend = COLD_STACKEND;
|
c_lsize = 0x7ffffff;
|
c_lsize = 0x7ffffff;
|
c_loader = (file_ptr) COLD_LOADER (core.old);
|
c_loader = (file_ptr) COLD_LOADER (core.old);
|
proc64 = 0;
|
proc64 = 0;
|
}
|
}
|
|
|
if (proc64)
|
if (proc64)
|
{
|
{
|
c_regsize = sizeof (CNEW_CONTEXT64 (core.new));
|
c_regsize = sizeof (CNEW_CONTEXT64 (core.new));
|
c_regptr = &CNEW_CONTEXT64 (core.new);
|
c_regptr = &CNEW_CONTEXT64 (core.new);
|
}
|
}
|
else if (CORE_NEW (core))
|
else if (CORE_NEW (core))
|
{
|
{
|
c_regsize = sizeof (CNEW_MSTSAVE (core.new));
|
c_regsize = sizeof (CNEW_MSTSAVE (core.new));
|
c_regptr = &CNEW_MSTSAVE (core.new);
|
c_regptr = &CNEW_MSTSAVE (core.new);
|
}
|
}
|
else
|
else
|
{
|
{
|
c_regsize = sizeof (COLD_MSTSAVE (core.old));
|
c_regsize = sizeof (COLD_MSTSAVE (core.old));
|
c_regptr = &COLD_MSTSAVE (core.old);
|
c_regptr = &COLD_MSTSAVE (core.old);
|
}
|
}
|
c_regoff = (char *) c_regptr - (char *) &core;
|
c_regoff = (char *) c_regptr - (char *) &core;
|
|
|
if (bfd_stat (abfd, &statbuf) < 0)
|
if (bfd_stat (abfd, &statbuf) < 0)
|
{
|
{
|
bfd_set_error (bfd_error_system_call);
|
bfd_set_error (bfd_error_system_call);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* If the core file ulimit is too small, the system will first
|
/* If the core file ulimit is too small, the system will first
|
omit the data segment, then omit the stack, then decline to
|
omit the data segment, then omit the stack, then decline to
|
dump core altogether (as far as I know UBLOCK_VALID and LE_VALID
|
dump core altogether (as far as I know UBLOCK_VALID and LE_VALID
|
are always set) (this is based on experimentation on AIX 3.2).
|
are always set) (this is based on experimentation on AIX 3.2).
|
Now, the thing is that GDB users will be surprised
|
Now, the thing is that GDB users will be surprised
|
if segments just silently don't appear (well, maybe they would
|
if segments just silently don't appear (well, maybe they would
|
think to check "info files", I don't know).
|
think to check "info files", I don't know).
|
|
|
For the data segment, we have no choice but to keep going if it's
|
For the data segment, we have no choice but to keep going if it's
|
not there, since the default behavior is not to dump it (regardless
|
not there, since the default behavior is not to dump it (regardless
|
of the ulimit, it's based on SA_FULLDUMP). But for the stack segment,
|
of the ulimit, it's based on SA_FULLDUMP). But for the stack segment,
|
if it's not there, we refuse to have anything to do with this core
|
if it's not there, we refuse to have anything to do with this core
|
file. The usefulness of a core dump without a stack segment is pretty
|
file. The usefulness of a core dump without a stack segment is pretty
|
limited anyway. */
|
limited anyway. */
|
|
|
if (!(c_flag & UBLOCK_VALID)
|
if (!(c_flag & UBLOCK_VALID)
|
|| !(c_flag & LE_VALID))
|
|| !(c_flag & LE_VALID))
|
{
|
{
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
if (!(c_flag & USTACK_VALID))
|
if (!(c_flag & USTACK_VALID))
|
{
|
{
|
bfd_set_error (bfd_error_file_truncated);
|
bfd_set_error (bfd_error_file_truncated);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Don't check the core file size for a full core, AIX 4.1 includes
|
/* Don't check the core file size for a full core, AIX 4.1 includes
|
additional shared library sections in a full core. */
|
additional shared library sections in a full core. */
|
if (!(c_flag & (FULL_CORE | CORE_TRUNC)))
|
if (!(c_flag & (FULL_CORE | CORE_TRUNC)))
|
{
|
{
|
/* If the size is wrong, it means we're misinterpreting something. */
|
/* If the size is wrong, it means we're misinterpreting something. */
|
if (c_stack + (file_ptr) c_size != statbuf.st_size)
|
if (c_stack + (file_ptr) c_size != statbuf.st_size)
|
{
|
{
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return NULL;
|
return NULL;
|
}
|
}
|
}
|
}
|
|
|
/* Sanity check on the c_tab field. */
|
/* Sanity check on the c_tab field. */
|
if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old ||
|
if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old ||
|
c_loader >= statbuf.st_size ||
|
c_loader >= statbuf.st_size ||
|
c_loader >= c_stack))
|
c_loader >= c_stack))
|
{
|
{
|
bfd_set_error (bfd_error_wrong_format);
|
bfd_set_error (bfd_error_wrong_format);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Issue warning if the core file was truncated during writing. */
|
/* Issue warning if the core file was truncated during writing. */
|
if (c_flag & CORE_TRUNC)
|
if (c_flag & CORE_TRUNC)
|
(*_bfd_error_handler) (_("%s: warning core file truncated"),
|
(*_bfd_error_handler) (_("%s: warning core file truncated"),
|
bfd_get_filename (abfd));
|
bfd_get_filename (abfd));
|
|
|
/* Allocate core file header. */
|
/* Allocate core file header. */
|
size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old);
|
size = CORE_NEW (core) ? sizeof (core.new) : sizeof (core.old);
|
tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
|
tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
|
if (!tmpptr)
|
if (!tmpptr)
|
return NULL;
|
return NULL;
|
|
|
/* Copy core file header. */
|
/* Copy core file header. */
|
memcpy (tmpptr, &core, size);
|
memcpy (tmpptr, &core, size);
|
set_tdata (abfd, tmpptr);
|
set_tdata (abfd, tmpptr);
|
|
|
/* Set architecture. */
|
/* Set architecture. */
|
if (CORE_NEW (core))
|
if (CORE_NEW (core))
|
{
|
{
|
enum bfd_architecture arch;
|
enum bfd_architecture arch;
|
unsigned long mach;
|
unsigned long mach;
|
|
|
switch (CNEW_IMPL (core.new))
|
switch (CNEW_IMPL (core.new))
|
{
|
{
|
case POWER_RS1:
|
case POWER_RS1:
|
case POWER_RSC:
|
case POWER_RSC:
|
case POWER_RS2:
|
case POWER_RS2:
|
arch = bfd_arch_rs6000;
|
arch = bfd_arch_rs6000;
|
mach = bfd_mach_rs6k;
|
mach = bfd_mach_rs6k;
|
break;
|
break;
|
default:
|
default:
|
arch = bfd_arch_powerpc;
|
arch = bfd_arch_powerpc;
|
mach = bfd_mach_ppc;
|
mach = bfd_mach_ppc;
|
break;
|
break;
|
}
|
}
|
bfd_default_set_arch_mach (abfd, arch, mach);
|
bfd_default_set_arch_mach (abfd, arch, mach);
|
}
|
}
|
|
|
/* .stack section. */
|
/* .stack section. */
|
if (!make_bfd_asection (abfd, ".stack",
|
if (!make_bfd_asection (abfd, ".stack",
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
c_size, c_stackend - c_size, c_stack))
|
c_size, c_stackend - c_size, c_stack))
|
goto fail;
|
goto fail;
|
|
|
/* .reg section for all registers. */
|
/* .reg section for all registers. */
|
if (!make_bfd_asection (abfd, ".reg",
|
if (!make_bfd_asection (abfd, ".reg",
|
SEC_HAS_CONTENTS,
|
SEC_HAS_CONTENTS,
|
c_regsize, (bfd_vma) 0, c_regoff))
|
c_regsize, (bfd_vma) 0, c_regoff))
|
goto fail;
|
goto fail;
|
|
|
/* .ldinfo section.
|
/* .ldinfo section.
|
To actually find out how long this section is in this particular
|
To actually find out how long this section is in this particular
|
core dump would require going down the whole list of struct ld_info's.
|
core dump would require going down the whole list of struct ld_info's.
|
See if we can just fake it. */
|
See if we can just fake it. */
|
if (!make_bfd_asection (abfd, ".ldinfo",
|
if (!make_bfd_asection (abfd, ".ldinfo",
|
SEC_HAS_CONTENTS,
|
SEC_HAS_CONTENTS,
|
c_lsize, (bfd_vma) 0, c_loader))
|
c_lsize, (bfd_vma) 0, c_loader))
|
goto fail;
|
goto fail;
|
|
|
#ifndef CORE_VERSION_1
|
#ifndef CORE_VERSION_1
|
/* .data section if present.
|
/* .data section if present.
|
AIX 3 dumps the complete data section and sets FULL_CORE if the
|
AIX 3 dumps the complete data section and sets FULL_CORE if the
|
ulimit is large enough, otherwise the data section is omitted.
|
ulimit is large enough, otherwise the data section is omitted.
|
AIX 4 sets FULL_CORE even if the core file is truncated, we have
|
AIX 4 sets FULL_CORE even if the core file is truncated, we have
|
to examine core.c_datasize below to find out the actual size of
|
to examine core.c_datasize below to find out the actual size of
|
the .data section. */
|
the .data section. */
|
if (c_flag & FULL_CORE)
|
if (c_flag & FULL_CORE)
|
{
|
{
|
if (!make_bfd_asection (abfd, ".data",
|
if (!make_bfd_asection (abfd, ".data",
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
(bfd_size_type) core.old.c_u.u_dsize,
|
(bfd_size_type) core.old.c_u.u_dsize,
|
(bfd_vma)
|
(bfd_vma)
|
CDATA_ADDR (core.old.c_u.u_dsize),
|
CDATA_ADDR (core.old.c_u.u_dsize),
|
c_stack + c_size))
|
c_stack + c_size))
|
goto fail;
|
goto fail;
|
}
|
}
|
#endif
|
#endif
|
|
|
#ifdef CORE_VERSION_1
|
#ifdef CORE_VERSION_1
|
/* AIX 4 adds data sections from loaded objects to the core file,
|
/* AIX 4 adds data sections from loaded objects to the core file,
|
which can be found by examining ldinfo, and anonymously mmapped
|
which can be found by examining ldinfo, and anonymously mmapped
|
regions. */
|
regions. */
|
{
|
{
|
LdInfo ldinfo;
|
LdInfo ldinfo;
|
bfd_size_type ldi_datasize;
|
bfd_size_type ldi_datasize;
|
file_ptr ldi_core;
|
file_ptr ldi_core;
|
uint ldi_next;
|
uint ldi_next;
|
bfd_vma ldi_dataorg;
|
bfd_vma ldi_dataorg;
|
|
|
/* Fields from new and old core structures. */
|
/* Fields from new and old core structures. */
|
bfd_size_type c_datasize, c_vmregions;
|
bfd_size_type c_datasize, c_vmregions;
|
file_ptr c_data, c_vmm;
|
file_ptr c_data, c_vmm;
|
|
|
if (CORE_NEW (core))
|
if (CORE_NEW (core))
|
{
|
{
|
c_datasize = CNEW_DATASIZE (core.new);
|
c_datasize = CNEW_DATASIZE (core.new);
|
c_data = (file_ptr) core.new.c_data;
|
c_data = (file_ptr) core.new.c_data;
|
c_vmregions = core.new.c_vmregions;
|
c_vmregions = core.new.c_vmregions;
|
c_vmm = (file_ptr) core.new.c_vmm;
|
c_vmm = (file_ptr) core.new.c_vmm;
|
}
|
}
|
else
|
else
|
{
|
{
|
c_datasize = core.old.c_datasize;
|
c_datasize = core.old.c_datasize;
|
c_data = (file_ptr) core.old.c_data;
|
c_data = (file_ptr) core.old.c_data;
|
c_vmregions = core.old.c_vmregions;
|
c_vmregions = core.old.c_vmregions;
|
c_vmm = (file_ptr) core.old.c_vmm;
|
c_vmm = (file_ptr) core.old.c_vmm;
|
}
|
}
|
|
|
/* .data section from executable. */
|
/* .data section from executable. */
|
if (c_datasize)
|
if (c_datasize)
|
{
|
{
|
if (!make_bfd_asection (abfd, ".data",
|
if (!make_bfd_asection (abfd, ".data",
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
c_datasize,
|
c_datasize,
|
(bfd_vma) CDATA_ADDR (c_datasize),
|
(bfd_vma) CDATA_ADDR (c_datasize),
|
c_data))
|
c_data))
|
goto fail;
|
goto fail;
|
}
|
}
|
|
|
/* .data sections from loaded objects. */
|
/* .data sections from loaded objects. */
|
if (proc64)
|
if (proc64)
|
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
else
|
else
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
if (bfd_seek (abfd, c_loader, SEEK_SET) != 0)
|
if (bfd_seek (abfd, c_loader, SEEK_SET) != 0)
|
goto fail;
|
goto fail;
|
if (bfd_bread (&ldinfo, size, abfd) != size)
|
if (bfd_bread (&ldinfo, size, abfd) != size)
|
goto fail;
|
goto fail;
|
|
|
if (proc64)
|
if (proc64)
|
{
|
{
|
ldi_core = ldinfo.l64.ldinfo_core;
|
ldi_core = ldinfo.l64.ldinfo_core;
|
ldi_datasize = ldinfo.l64.ldinfo_datasize;
|
ldi_datasize = ldinfo.l64.ldinfo_datasize;
|
ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg;
|
ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg;
|
ldi_next = ldinfo.l64.ldinfo_next;
|
ldi_next = ldinfo.l64.ldinfo_next;
|
}
|
}
|
else
|
else
|
{
|
{
|
ldi_core = ldinfo.l32.ldinfo_core;
|
ldi_core = ldinfo.l32.ldinfo_core;
|
ldi_datasize = ldinfo.l32.ldinfo_datasize;
|
ldi_datasize = ldinfo.l32.ldinfo_datasize;
|
ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg;
|
ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg;
|
ldi_next = ldinfo.l32.ldinfo_next;
|
ldi_next = ldinfo.l32.ldinfo_next;
|
}
|
}
|
|
|
if (ldi_core)
|
if (ldi_core)
|
if (!make_bfd_asection (abfd, ".data",
|
if (!make_bfd_asection (abfd, ".data",
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
ldi_datasize, ldi_dataorg, ldi_core))
|
ldi_datasize, ldi_dataorg, ldi_core))
|
goto fail;
|
goto fail;
|
|
|
if (ldi_next == 0)
|
if (ldi_next == 0)
|
break;
|
break;
|
c_loader += ldi_next;
|
c_loader += ldi_next;
|
}
|
}
|
|
|
/* .vmdata sections from anonymously mmapped regions. */
|
/* .vmdata sections from anonymously mmapped regions. */
|
if (c_vmregions)
|
if (c_vmregions)
|
{
|
{
|
bfd_size_type i;
|
bfd_size_type i;
|
|
|
if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0)
|
if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0)
|
goto fail;
|
goto fail;
|
|
|
for (i = 0; i < c_vmregions; i++)
|
for (i = 0; i < c_vmregions; i++)
|
{
|
{
|
VmInfo vminfo;
|
VmInfo vminfo;
|
bfd_size_type vminfo_size;
|
bfd_size_type vminfo_size;
|
file_ptr vminfo_offset;
|
file_ptr vminfo_offset;
|
bfd_vma vminfo_addr;
|
bfd_vma vminfo_addr;
|
|
|
size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old);
|
size = CORE_NEW (core) ? sizeof (vminfo.new) : sizeof (vminfo.old);
|
if (bfd_bread (&vminfo, size, abfd) != size)
|
if (bfd_bread (&vminfo, size, abfd) != size)
|
goto fail;
|
goto fail;
|
|
|
if (CORE_NEW (core))
|
if (CORE_NEW (core))
|
{
|
{
|
vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr;
|
vminfo_addr = (bfd_vma) vminfo.new.vminfo_addr;
|
vminfo_size = vminfo.new.vminfo_size;
|
vminfo_size = vminfo.new.vminfo_size;
|
vminfo_offset = vminfo.new.vminfo_offset;
|
vminfo_offset = vminfo.new.vminfo_offset;
|
}
|
}
|
else
|
else
|
{
|
{
|
vminfo_addr = (bfd_vma) (long) vminfo.old.vminfo_addr;
|
vminfo_addr = (bfd_vma) (long) vminfo.old.vminfo_addr;
|
vminfo_size = vminfo.old.vminfo_size;
|
vminfo_size = vminfo.old.vminfo_size;
|
vminfo_offset = vminfo.old.vminfo_offset;
|
vminfo_offset = vminfo.old.vminfo_offset;
|
}
|
}
|
|
|
if (vminfo_offset)
|
if (vminfo_offset)
|
if (!make_bfd_asection (abfd, ".vmdata",
|
if (!make_bfd_asection (abfd, ".vmdata",
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
vminfo_size, vminfo_addr,
|
vminfo_size, vminfo_addr,
|
vminfo_offset))
|
vminfo_offset))
|
goto fail;
|
goto fail;
|
}
|
}
|
}
|
}
|
}
|
}
|
#endif
|
#endif
|
|
|
return abfd->xvec; /* This is garbage for now. */
|
return abfd->xvec; /* This is garbage for now. */
|
|
|
fail:
|
fail:
|
bfd_release (abfd, abfd->tdata.any);
|
bfd_release (abfd, abfd->tdata.any);
|
abfd->tdata.any = NULL;
|
abfd->tdata.any = NULL;
|
bfd_section_list_clear (abfd);
|
bfd_section_list_clear (abfd);
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
/* Return `true' if given core is from the given executable. */
|
/* Return `true' if given core is from the given executable. */
|
|
|
boolean
|
boolean
|
rs6000coff_core_file_matches_executable_p (core_bfd, exec_bfd)
|
rs6000coff_core_file_matches_executable_p (core_bfd, exec_bfd)
|
bfd *core_bfd;
|
bfd *core_bfd;
|
bfd *exec_bfd;
|
bfd *exec_bfd;
|
{
|
{
|
CoreHdr core;
|
CoreHdr core;
|
bfd_size_type size;
|
bfd_size_type size;
|
char *path, *s;
|
char *path, *s;
|
size_t alloc;
|
size_t alloc;
|
const char *str1, *str2;
|
const char *str1, *str2;
|
boolean ret;
|
boolean ret;
|
file_ptr c_loader;
|
file_ptr c_loader;
|
|
|
if (!read_hdr (core_bfd, &core))
|
if (!read_hdr (core_bfd, &core))
|
return false;
|
return false;
|
|
|
if (CORE_NEW (core))
|
if (CORE_NEW (core))
|
c_loader = CNEW_LOADER (core.new);
|
c_loader = CNEW_LOADER (core.new);
|
else
|
else
|
c_loader = (file_ptr) COLD_LOADER (core.old);
|
c_loader = (file_ptr) COLD_LOADER (core.old);
|
|
|
if (CORE_NEW (core) && CNEW_PROC64 (core.new))
|
if (CORE_NEW (core) && CNEW_PROC64 (core.new))
|
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
else
|
else
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
|
|
if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0)
|
if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0)
|
return false;
|
return false;
|
|
|
alloc = 100;
|
alloc = 100;
|
path = bfd_malloc ((bfd_size_type) alloc);
|
path = bfd_malloc ((bfd_size_type) alloc);
|
if (path == NULL)
|
if (path == NULL)
|
return false;
|
return false;
|
s = path;
|
s = path;
|
|
|
while (1)
|
while (1)
|
{
|
{
|
if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1)
|
if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1)
|
{
|
{
|
free (path);
|
free (path);
|
return false;
|
return false;
|
}
|
}
|
if (*s == '\0')
|
if (*s == '\0')
|
break;
|
break;
|
++s;
|
++s;
|
if (s == path + alloc)
|
if (s == path + alloc)
|
{
|
{
|
char *n;
|
char *n;
|
|
|
alloc *= 2;
|
alloc *= 2;
|
n = bfd_realloc (path, (bfd_size_type) alloc);
|
n = bfd_realloc (path, (bfd_size_type) alloc);
|
if (n == NULL)
|
if (n == NULL)
|
{
|
{
|
free (path);
|
free (path);
|
return false;
|
return false;
|
}
|
}
|
s = n + (path - s);
|
s = n + (path - s);
|
path = n;
|
path = n;
|
}
|
}
|
}
|
}
|
|
|
str1 = strrchr (path, '/');
|
str1 = strrchr (path, '/');
|
str2 = strrchr (exec_bfd->filename, '/');
|
str2 = strrchr (exec_bfd->filename, '/');
|
|
|
/* step over character '/' */
|
/* step over character '/' */
|
str1 = str1 != NULL ? str1 + 1 : path;
|
str1 = str1 != NULL ? str1 + 1 : path;
|
str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename;
|
str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename;
|
|
|
if (strcmp (str1, str2) == 0)
|
if (strcmp (str1, str2) == 0)
|
ret = true;
|
ret = true;
|
else
|
else
|
ret = false;
|
ret = false;
|
|
|
free (path);
|
free (path);
|
|
|
return ret;
|
return ret;
|
}
|
}
|
|
|
char *
|
char *
|
rs6000coff_core_file_failing_command (abfd)
|
rs6000coff_core_file_failing_command (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
CoreHdr *core = core_hdr (abfd);
|
CoreHdr *core = core_hdr (abfd);
|
char *com = CORE_NEW (*core) ?
|
char *com = CORE_NEW (*core) ?
|
CNEW_COMM (core->new) : COLD_COMM (core->old);
|
CNEW_COMM (core->new) : COLD_COMM (core->old);
|
|
|
if (*com)
|
if (*com)
|
return com;
|
return com;
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
int
|
int
|
rs6000coff_core_file_failing_signal (abfd)
|
rs6000coff_core_file_failing_signal (abfd)
|
bfd *abfd;
|
bfd *abfd;
|
{
|
{
|
CoreHdr *core = core_hdr (abfd);
|
CoreHdr *core = core_hdr (abfd);
|
return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo;
|
return CORE_NEW (*core) ? core->new.c_signo : core->old.c_signo;
|
}
|
}
|
|
|
#endif /* AIX_CORE */
|
#endif /* AIX_CORE */
|
|
|
