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jeremybenn |
/* 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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225 |
jeremybenn |
2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009
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24 |
jeremybenn |
Free Software Foundation, Inc.
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Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore.
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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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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 3 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., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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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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In all cases, it does not support writing.
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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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/* Internalcoff.h and coffcode.h modify themselves based on this flag. */
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#define RS6000COFF_C 1
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/* The AIX 4.1 kernel is obviously compiled with -D_LONG_LONG, so
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we have to define _LONG_LONG for older versions of gcc to get the
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proper alignments in the user structure. */
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#if defined(_AIX41) && !defined(_LONG_LONG)
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#define _LONG_LONG
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#endif
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#ifdef AIX_CORE
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/* AOUTHDR is defined by the above. We need another defn of it, from the
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system include files. Punt the old one and get us a new name for the
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typedef in the system include files. */
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#ifdef AOUTHDR
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#undef AOUTHDR
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#endif
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#define AOUTHDR second_AOUTHDR
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#undef SCNHDR
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/* ------------------------------------------------------------------------ */
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/* Support for core file stuff.. */
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/* ------------------------------------------------------------------------ */
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#include <sys/user.h>
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#define __LDINFO_PTRACE32__ /* for __ld_info32 */
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#define __LDINFO_PTRACE64__ /* for __ld_info64 */
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#include <sys/ldr.h>
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#include <sys/core.h>
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#include <sys/systemcfg.h>
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/* Borrowed from <sys/inttypes.h> on recent AIX versions. */
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typedef unsigned long ptr_to_uint;
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#define core_hdr(bfd) ((CoreHdr *) bfd->tdata.any)
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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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the previous 4.1 structure, core_dump.
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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
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4.1 and 4.2. AIX pre-4.1 (aka 3.x) either doesn't define CORE_VERSION_1
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or else defines it as 0. */
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#if defined(CORE_VERSION_1) && !CORE_VERSION_1
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# undef CORE_VERSION_1
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#endif
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/* The following union and macros allow this module to compile on all AIX
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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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values. */
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/* Union of 32-bit and 64-bit versions of ld_info. */
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typedef union {
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#ifdef __ld_info32
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struct __ld_info32 l32;
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struct __ld_info64 l64;
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#else
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struct ld_info l32;
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struct ld_info l64;
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#endif
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} LdInfo;
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/* Union of old and new core dump structures. */
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typedef union {
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#ifdef AIX_CORE_DUMPX_CORE
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jeremybenn |
struct core_dumpx new_dump; /* new AIX 4.3+ core dump */
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jeremybenn |
#else
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jeremybenn |
struct core_dump new_dump; /* for simpler coding */
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jeremybenn |
#endif
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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 */
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} CoreHdr;
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/* Union of old and new vm_info structures. */
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#ifdef CORE_VERSION_1
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typedef union {
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#ifdef AIX_CORE_DUMPX_CORE
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jeremybenn |
struct vm_infox new_dump;
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jeremybenn |
#else
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jeremybenn |
struct vm_info new_dump;
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jeremybenn |
#endif
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struct vm_info old;
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} VmInfo;
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#endif
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/* Return whether CoreHdr C is in new or old format. */
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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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#else
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# define CORE_NEW(c) 0
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#endif
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jeremybenn |
/* Return whether CoreHdr C usese core_dumpxx structure.
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FIXME: the core file format version number used here definitely indicates
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that struct core_dumpxx should be used to represent the core file header,
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but that may not be the only such format version number. */
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#ifdef AIX_5_CORE
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# define CORE_DUMPXX_VERSION 267312562
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# define CNEW_IS_CORE_DUMPXX(c) ((c).new_dump.c_version == CORE_DUMPXX_VERSION)
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#else
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# define CNEW_IS_CORE_DUMPXX(c) 0
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#endif
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jeremybenn |
/* Return the c_stackorg field from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_STACKORG(c) (c).c_stackorg
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#else
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# define CNEW_STACKORG(c) 0
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#endif
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/* Return the offset to the loader region from struct core_dump C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_LOADER(c) (c).c_loader
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#else
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# define CNEW_LOADER(c) 0
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#endif
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/* Return the offset to the loader region from struct core_dump C. */
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#define COLD_LOADER(c) (c).c_tab
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/* Return the c_lsize field from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_LSIZE(c) (c).c_lsize
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#else
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# define CNEW_LSIZE(c) 0
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#endif
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/* Return the c_dataorg field from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_DATAORG(c) (c).c_dataorg
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#else
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# define CNEW_DATAORG(c) 0
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#endif
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/* Return the c_datasize field from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_DATASIZE(c) (c).c_datasize
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#else
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# define CNEW_DATASIZE(c) 0
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#endif
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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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# define CNEW_IMPL(c) (c).c_impl
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#else
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# define CNEW_IMPL(c) 0
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#endif
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/* Return the command string from struct core_dumpx C. */
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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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#else
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# define CNEW_COMM(c) 0
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#endif
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/* Return the command string from struct core_dump C. */
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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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#else
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# define COLD_COMM(c) (c).c_u.u_comm
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#endif
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/* Return the struct __context64 pointer from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_CONTEXT64(c) (c).c_flt.hctx.r64
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#else
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# define CNEW_CONTEXT64(c) c
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#endif
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/* Return the struct mstsave pointer from struct core_dumpx C. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_MSTSAVE(c) (c).c_flt.hctx.r32
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#else
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# define CNEW_MSTSAVE(c) c
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#endif
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/* Return the struct mstsave pointer from struct core_dump C. */
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#ifdef CORE_VERSION_1
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# define COLD_MSTSAVE(c) (c).c_mst
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#else
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# define COLD_MSTSAVE(c) (c).c_u.u_save
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#endif
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/* Return whether struct core_dumpx is from a 64-bit process. */
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#ifdef AIX_CORE_DUMPX_CORE
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# define CNEW_PROC64(c) IS_PROC64(&(c).c_u.U_proc)
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#else
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# define CNEW_PROC64(c) 0
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#endif
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251 |
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252 |
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/* Magic end-of-stack addresses for old core dumps. This is _very_ fragile,
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but I don't see any easy way to get that info right now. */
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254 |
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#ifdef CORE_VERSION_1
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# define COLD_STACKEND 0x2ff23000
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#else
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# define COLD_STACKEND 0x2ff80000
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#endif
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260 |
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261 |
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/* Size of the leading portion that old and new core dump structures have in
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262 |
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common. */
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#define CORE_COMMONSZ ((int) &((struct core_dump *) 0)->c_entries \
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+ sizeof (((struct core_dump *) 0)->c_entries))
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266 |
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/* Define prototypes for certain functions, to avoid a compiler warning
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267 |
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saying that they are missing. */
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269 |
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const bfd_target * rs6000coff_core_p (bfd *abfd);
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bfd_boolean rs6000coff_core_file_matches_executable_p (bfd *core_bfd,
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bfd *exec_bfd);
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char * rs6000coff_core_file_failing_command (bfd *abfd);
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273 |
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int rs6000coff_core_file_failing_signal (bfd *abfd);
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274 |
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275 |
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/* Try to read into CORE the header from the core file associated with ABFD.
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276 |
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Return success. */
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277 |
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278 |
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static bfd_boolean
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279 |
|
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read_hdr (bfd *abfd, CoreHdr *core)
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280 |
|
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{
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281 |
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bfd_size_type size;
|
282 |
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|
283 |
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if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
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284 |
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return FALSE;
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285 |
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|
286 |
|
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/* Read the leading portion that old and new core dump structures have in
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287 |
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common. */
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288 |
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size = CORE_COMMONSZ;
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289 |
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if (bfd_bread (core, size, abfd) != size)
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290 |
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return FALSE;
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291 |
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292 |
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/* Read the trailing portion of the structure. */
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293 |
|
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if (CORE_NEW (*core))
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294 |
225 |
jeremybenn |
size = sizeof (core->new_dump);
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295 |
24 |
jeremybenn |
else
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296 |
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size = sizeof (core->old);
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297 |
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size -= CORE_COMMONSZ;
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298 |
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return bfd_bread ((char *) core + CORE_COMMONSZ, size, abfd) == size;
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299 |
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}
|
300 |
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|
301 |
|
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static asection *
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302 |
|
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make_bfd_asection (bfd *abfd, const char *name, flagword flags,
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303 |
|
|
bfd_size_type size, bfd_vma vma, file_ptr filepos)
|
304 |
|
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{
|
305 |
|
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asection *asect;
|
306 |
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|
307 |
|
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asect = bfd_make_section_anyway_with_flags (abfd, name, flags);
|
308 |
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if (!asect)
|
309 |
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return NULL;
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310 |
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|
311 |
|
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asect->size = size;
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312 |
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asect->vma = vma;
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313 |
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asect->filepos = filepos;
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314 |
|
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asect->alignment_power = 8;
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315 |
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|
316 |
|
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return asect;
|
317 |
|
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}
|
318 |
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|
319 |
|
|
/* Decide if a given bfd represents a `core' file or not. There really is no
|
320 |
|
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magic number or anything like, in rs6000coff. */
|
321 |
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|
322 |
|
|
const bfd_target *
|
323 |
|
|
rs6000coff_core_p (bfd *abfd)
|
324 |
|
|
{
|
325 |
|
|
CoreHdr core;
|
326 |
|
|
struct stat statbuf;
|
327 |
|
|
bfd_size_type size;
|
328 |
|
|
char *tmpptr;
|
329 |
|
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|
330 |
|
|
/* Values from new and old core structures. */
|
331 |
|
|
int c_flag;
|
332 |
|
|
file_ptr c_stack, c_regoff, c_loader;
|
333 |
|
|
bfd_size_type c_size, c_regsize, c_lsize;
|
334 |
|
|
bfd_vma c_stackend;
|
335 |
|
|
void *c_regptr;
|
336 |
|
|
int proc64;
|
337 |
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|
338 |
|
|
if (!read_hdr (abfd, &core))
|
339 |
|
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{
|
340 |
|
|
if (bfd_get_error () != bfd_error_system_call)
|
341 |
|
|
bfd_set_error (bfd_error_wrong_format);
|
342 |
|
|
return NULL;
|
343 |
|
|
}
|
344 |
|
|
|
345 |
225 |
jeremybenn |
/* This isn't the right handler for 64-bit core files on AIX 5.x. */
|
346 |
|
|
if (CORE_NEW (core) && CNEW_IS_CORE_DUMPXX (core))
|
347 |
|
|
{
|
348 |
|
|
bfd_set_error (bfd_error_wrong_format);
|
349 |
|
|
return NULL;
|
350 |
|
|
}
|
351 |
|
|
|
352 |
24 |
jeremybenn |
/* Copy fields from new or old core structure. */
|
353 |
|
|
if (CORE_NEW (core))
|
354 |
|
|
{
|
355 |
225 |
jeremybenn |
c_flag = core.new_dump.c_flag;
|
356 |
|
|
c_stack = (file_ptr) core.new_dump.c_stack;
|
357 |
|
|
c_size = core.new_dump.c_size;
|
358 |
|
|
c_stackend = CNEW_STACKORG (core.new_dump) + c_size;
|
359 |
|
|
c_lsize = CNEW_LSIZE (core.new_dump);
|
360 |
|
|
c_loader = CNEW_LOADER (core.new_dump);
|
361 |
|
|
proc64 = CNEW_PROC64 (core.new_dump);
|
362 |
24 |
jeremybenn |
}
|
363 |
|
|
else
|
364 |
|
|
{
|
365 |
|
|
c_flag = core.old.c_flag;
|
366 |
|
|
c_stack = (file_ptr) (ptr_to_uint) core.old.c_stack;
|
367 |
|
|
c_size = core.old.c_size;
|
368 |
|
|
c_stackend = COLD_STACKEND;
|
369 |
|
|
c_lsize = 0x7ffffff;
|
370 |
|
|
c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
|
371 |
|
|
proc64 = 0;
|
372 |
|
|
}
|
373 |
|
|
|
374 |
|
|
if (proc64)
|
375 |
|
|
{
|
376 |
225 |
jeremybenn |
c_regsize = sizeof (CNEW_CONTEXT64 (core.new_dump));
|
377 |
|
|
c_regptr = &CNEW_CONTEXT64 (core.new_dump);
|
378 |
24 |
jeremybenn |
}
|
379 |
|
|
else if (CORE_NEW (core))
|
380 |
|
|
{
|
381 |
225 |
jeremybenn |
c_regsize = sizeof (CNEW_MSTSAVE (core.new_dump));
|
382 |
|
|
c_regptr = &CNEW_MSTSAVE (core.new_dump);
|
383 |
24 |
jeremybenn |
}
|
384 |
|
|
else
|
385 |
|
|
{
|
386 |
|
|
c_regsize = sizeof (COLD_MSTSAVE (core.old));
|
387 |
|
|
c_regptr = &COLD_MSTSAVE (core.old);
|
388 |
|
|
}
|
389 |
|
|
c_regoff = (char *) c_regptr - (char *) &core;
|
390 |
|
|
|
391 |
|
|
if (bfd_stat (abfd, &statbuf) < 0)
|
392 |
|
|
{
|
393 |
|
|
bfd_set_error (bfd_error_system_call);
|
394 |
|
|
return NULL;
|
395 |
|
|
}
|
396 |
|
|
|
397 |
|
|
/* If the core file ulimit is too small, the system will first
|
398 |
|
|
omit the data segment, then omit the stack, then decline to
|
399 |
|
|
dump core altogether (as far as I know UBLOCK_VALID and LE_VALID
|
400 |
|
|
are always set) (this is based on experimentation on AIX 3.2).
|
401 |
|
|
Now, the thing is that GDB users will be surprised
|
402 |
|
|
if segments just silently don't appear (well, maybe they would
|
403 |
|
|
think to check "info files", I don't know).
|
404 |
|
|
|
405 |
|
|
For the data segment, we have no choice but to keep going if it's
|
406 |
|
|
not there, since the default behavior is not to dump it (regardless
|
407 |
|
|
of the ulimit, it's based on SA_FULLDUMP). But for the stack segment,
|
408 |
|
|
if it's not there, we refuse to have anything to do with this core
|
409 |
|
|
file. The usefulness of a core dump without a stack segment is pretty
|
410 |
|
|
limited anyway. */
|
411 |
|
|
|
412 |
|
|
if (!(c_flag & UBLOCK_VALID)
|
413 |
|
|
|| !(c_flag & LE_VALID))
|
414 |
|
|
{
|
415 |
|
|
bfd_set_error (bfd_error_wrong_format);
|
416 |
|
|
return NULL;
|
417 |
|
|
}
|
418 |
|
|
|
419 |
|
|
if (!(c_flag & USTACK_VALID))
|
420 |
|
|
{
|
421 |
|
|
bfd_set_error (bfd_error_file_truncated);
|
422 |
|
|
return NULL;
|
423 |
|
|
}
|
424 |
|
|
|
425 |
|
|
/* Don't check the core file size for a full core, AIX 4.1 includes
|
426 |
|
|
additional shared library sections in a full core. */
|
427 |
|
|
if (!(c_flag & (FULL_CORE | CORE_TRUNC)))
|
428 |
|
|
{
|
429 |
|
|
/* If the size is wrong, it means we're misinterpreting something. */
|
430 |
|
|
if (c_stack + (file_ptr) c_size != statbuf.st_size)
|
431 |
|
|
{
|
432 |
|
|
bfd_set_error (bfd_error_wrong_format);
|
433 |
|
|
return NULL;
|
434 |
|
|
}
|
435 |
|
|
}
|
436 |
|
|
|
437 |
|
|
/* Sanity check on the c_tab field. */
|
438 |
|
|
if (!CORE_NEW (core) && (c_loader < (file_ptr) sizeof core.old ||
|
439 |
|
|
c_loader >= statbuf.st_size ||
|
440 |
|
|
c_loader >= c_stack))
|
441 |
|
|
{
|
442 |
|
|
bfd_set_error (bfd_error_wrong_format);
|
443 |
|
|
return NULL;
|
444 |
|
|
}
|
445 |
|
|
|
446 |
|
|
/* Issue warning if the core file was truncated during writing. */
|
447 |
|
|
if (c_flag & CORE_TRUNC)
|
448 |
|
|
(*_bfd_error_handler) (_("%s: warning core file truncated"),
|
449 |
|
|
bfd_get_filename (abfd));
|
450 |
|
|
|
451 |
|
|
/* Allocate core file header. */
|
452 |
225 |
jeremybenn |
size = CORE_NEW (core) ? sizeof (core.new_dump) : sizeof (core.old);
|
453 |
24 |
jeremybenn |
tmpptr = (char *) bfd_zalloc (abfd, (bfd_size_type) size);
|
454 |
|
|
if (!tmpptr)
|
455 |
|
|
return NULL;
|
456 |
|
|
|
457 |
|
|
/* Copy core file header. */
|
458 |
|
|
memcpy (tmpptr, &core, size);
|
459 |
|
|
set_tdata (abfd, tmpptr);
|
460 |
|
|
|
461 |
|
|
/* Set architecture. */
|
462 |
|
|
if (CORE_NEW (core))
|
463 |
|
|
{
|
464 |
|
|
enum bfd_architecture arch;
|
465 |
|
|
unsigned long mach;
|
466 |
|
|
|
467 |
225 |
jeremybenn |
switch (CNEW_IMPL (core.new_dump))
|
468 |
24 |
jeremybenn |
{
|
469 |
|
|
case POWER_RS1:
|
470 |
|
|
case POWER_RSC:
|
471 |
|
|
case POWER_RS2:
|
472 |
|
|
arch = bfd_arch_rs6000;
|
473 |
|
|
mach = bfd_mach_rs6k;
|
474 |
|
|
break;
|
475 |
|
|
default:
|
476 |
|
|
arch = bfd_arch_powerpc;
|
477 |
|
|
mach = bfd_mach_ppc;
|
478 |
|
|
break;
|
479 |
|
|
}
|
480 |
|
|
bfd_default_set_arch_mach (abfd, arch, mach);
|
481 |
|
|
}
|
482 |
|
|
|
483 |
|
|
/* .stack section. */
|
484 |
|
|
if (!make_bfd_asection (abfd, ".stack",
|
485 |
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
486 |
|
|
c_size, c_stackend - c_size, c_stack))
|
487 |
|
|
goto fail;
|
488 |
|
|
|
489 |
|
|
/* .reg section for all registers. */
|
490 |
|
|
if (!make_bfd_asection (abfd, ".reg",
|
491 |
|
|
SEC_HAS_CONTENTS,
|
492 |
|
|
c_regsize, (bfd_vma) 0, c_regoff))
|
493 |
|
|
goto fail;
|
494 |
|
|
|
495 |
|
|
/* .ldinfo section.
|
496 |
|
|
To actually find out how long this section is in this particular
|
497 |
|
|
core dump would require going down the whole list of struct ld_info's.
|
498 |
|
|
See if we can just fake it. */
|
499 |
|
|
if (!make_bfd_asection (abfd, ".ldinfo",
|
500 |
|
|
SEC_HAS_CONTENTS,
|
501 |
|
|
c_lsize, (bfd_vma) 0, c_loader))
|
502 |
|
|
goto fail;
|
503 |
|
|
|
504 |
|
|
#ifndef CORE_VERSION_1
|
505 |
|
|
/* .data section if present.
|
506 |
|
|
AIX 3 dumps the complete data section and sets FULL_CORE if the
|
507 |
|
|
ulimit is large enough, otherwise the data section is omitted.
|
508 |
|
|
AIX 4 sets FULL_CORE even if the core file is truncated, we have
|
509 |
|
|
to examine core.c_datasize below to find out the actual size of
|
510 |
|
|
the .data section. */
|
511 |
|
|
if (c_flag & FULL_CORE)
|
512 |
|
|
{
|
513 |
|
|
if (!make_bfd_asection (abfd, ".data",
|
514 |
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
515 |
|
|
(bfd_size_type) core.old.c_u.u_dsize,
|
516 |
|
|
(bfd_vma)
|
517 |
|
|
CDATA_ADDR (core.old.c_u.u_dsize),
|
518 |
|
|
c_stack + c_size))
|
519 |
|
|
goto fail;
|
520 |
|
|
}
|
521 |
|
|
#endif
|
522 |
|
|
|
523 |
|
|
#ifdef CORE_VERSION_1
|
524 |
|
|
/* AIX 4 adds data sections from loaded objects to the core file,
|
525 |
|
|
which can be found by examining ldinfo, and anonymously mmapped
|
526 |
|
|
regions. */
|
527 |
|
|
{
|
528 |
|
|
LdInfo ldinfo;
|
529 |
|
|
bfd_size_type ldi_datasize;
|
530 |
|
|
file_ptr ldi_core;
|
531 |
|
|
uint ldi_next;
|
532 |
|
|
bfd_vma ldi_dataorg;
|
533 |
|
|
|
534 |
|
|
/* Fields from new and old core structures. */
|
535 |
|
|
bfd_size_type c_datasize, c_vmregions;
|
536 |
|
|
file_ptr c_data, c_vmm;
|
537 |
|
|
|
538 |
|
|
if (CORE_NEW (core))
|
539 |
|
|
{
|
540 |
225 |
jeremybenn |
c_datasize = CNEW_DATASIZE (core.new_dump);
|
541 |
|
|
c_data = (file_ptr) core.new_dump.c_data;
|
542 |
|
|
c_vmregions = core.new_dump.c_vmregions;
|
543 |
|
|
c_vmm = (file_ptr) core.new_dump.c_vmm;
|
544 |
24 |
jeremybenn |
}
|
545 |
|
|
else
|
546 |
|
|
{
|
547 |
|
|
c_datasize = core.old.c_datasize;
|
548 |
|
|
c_data = (file_ptr) (ptr_to_uint) core.old.c_data;
|
549 |
|
|
c_vmregions = core.old.c_vmregions;
|
550 |
|
|
c_vmm = (file_ptr) (ptr_to_uint) core.old.c_vmm;
|
551 |
|
|
}
|
552 |
|
|
|
553 |
|
|
/* .data section from executable. */
|
554 |
|
|
if (c_datasize)
|
555 |
|
|
{
|
556 |
|
|
if (!make_bfd_asection (abfd, ".data",
|
557 |
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
558 |
|
|
c_datasize,
|
559 |
|
|
(bfd_vma) CDATA_ADDR (c_datasize),
|
560 |
|
|
c_data))
|
561 |
|
|
goto fail;
|
562 |
|
|
}
|
563 |
|
|
|
564 |
|
|
/* .data sections from loaded objects. */
|
565 |
|
|
if (proc64)
|
566 |
|
|
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
567 |
|
|
else
|
568 |
|
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
569 |
|
|
|
570 |
|
|
while (1)
|
571 |
|
|
{
|
572 |
|
|
if (bfd_seek (abfd, c_loader, SEEK_SET) != 0)
|
573 |
|
|
goto fail;
|
574 |
|
|
if (bfd_bread (&ldinfo, size, abfd) != size)
|
575 |
|
|
goto fail;
|
576 |
|
|
|
577 |
|
|
if (proc64)
|
578 |
|
|
{
|
579 |
|
|
ldi_core = ldinfo.l64.ldinfo_core;
|
580 |
|
|
ldi_datasize = ldinfo.l64.ldinfo_datasize;
|
581 |
|
|
ldi_dataorg = (bfd_vma) ldinfo.l64.ldinfo_dataorg;
|
582 |
|
|
ldi_next = ldinfo.l64.ldinfo_next;
|
583 |
|
|
}
|
584 |
|
|
else
|
585 |
|
|
{
|
586 |
|
|
ldi_core = ldinfo.l32.ldinfo_core;
|
587 |
|
|
ldi_datasize = ldinfo.l32.ldinfo_datasize;
|
588 |
|
|
ldi_dataorg = (bfd_vma) (long) ldinfo.l32.ldinfo_dataorg;
|
589 |
|
|
ldi_next = ldinfo.l32.ldinfo_next;
|
590 |
|
|
}
|
591 |
|
|
|
592 |
|
|
if (ldi_core)
|
593 |
|
|
if (!make_bfd_asection (abfd, ".data",
|
594 |
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
595 |
|
|
ldi_datasize, ldi_dataorg, ldi_core))
|
596 |
|
|
goto fail;
|
597 |
|
|
|
598 |
|
|
if (ldi_next == 0)
|
599 |
|
|
break;
|
600 |
|
|
c_loader += ldi_next;
|
601 |
|
|
}
|
602 |
|
|
|
603 |
|
|
/* .vmdata sections from anonymously mmapped regions. */
|
604 |
|
|
if (c_vmregions)
|
605 |
|
|
{
|
606 |
|
|
bfd_size_type i;
|
607 |
|
|
|
608 |
|
|
if (bfd_seek (abfd, c_vmm, SEEK_SET) != 0)
|
609 |
|
|
goto fail;
|
610 |
|
|
|
611 |
|
|
for (i = 0; i < c_vmregions; i++)
|
612 |
|
|
{
|
613 |
|
|
VmInfo vminfo;
|
614 |
|
|
bfd_size_type vminfo_size;
|
615 |
|
|
file_ptr vminfo_offset;
|
616 |
|
|
bfd_vma vminfo_addr;
|
617 |
|
|
|
618 |
225 |
jeremybenn |
size = CORE_NEW (core) ? sizeof (vminfo.new_dump) : sizeof (vminfo.old);
|
619 |
24 |
jeremybenn |
if (bfd_bread (&vminfo, size, abfd) != size)
|
620 |
|
|
goto fail;
|
621 |
|
|
|
622 |
|
|
if (CORE_NEW (core))
|
623 |
|
|
{
|
624 |
225 |
jeremybenn |
vminfo_addr = (bfd_vma) vminfo.new_dump.vminfo_addr;
|
625 |
|
|
vminfo_size = vminfo.new_dump.vminfo_size;
|
626 |
|
|
vminfo_offset = vminfo.new_dump.vminfo_offset;
|
627 |
24 |
jeremybenn |
}
|
628 |
|
|
else
|
629 |
|
|
{
|
630 |
|
|
vminfo_addr = (bfd_vma) (long) vminfo.old.vminfo_addr;
|
631 |
|
|
vminfo_size = vminfo.old.vminfo_size;
|
632 |
|
|
vminfo_offset = vminfo.old.vminfo_offset;
|
633 |
|
|
}
|
634 |
|
|
|
635 |
|
|
if (vminfo_offset)
|
636 |
|
|
if (!make_bfd_asection (abfd, ".vmdata",
|
637 |
|
|
SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS,
|
638 |
|
|
vminfo_size, vminfo_addr,
|
639 |
|
|
vminfo_offset))
|
640 |
|
|
goto fail;
|
641 |
|
|
}
|
642 |
|
|
}
|
643 |
|
|
}
|
644 |
|
|
#endif
|
645 |
|
|
|
646 |
|
|
return abfd->xvec; /* This is garbage for now. */
|
647 |
|
|
|
648 |
|
|
fail:
|
649 |
|
|
bfd_release (abfd, abfd->tdata.any);
|
650 |
|
|
abfd->tdata.any = NULL;
|
651 |
|
|
bfd_section_list_clear (abfd);
|
652 |
|
|
return NULL;
|
653 |
|
|
}
|
654 |
|
|
|
655 |
|
|
/* Return `TRUE' if given core is from the given executable. */
|
656 |
|
|
|
657 |
|
|
bfd_boolean
|
658 |
|
|
rs6000coff_core_file_matches_executable_p (bfd *core_bfd, bfd *exec_bfd)
|
659 |
|
|
{
|
660 |
|
|
CoreHdr core;
|
661 |
|
|
bfd_size_type size;
|
662 |
|
|
char *path, *s;
|
663 |
|
|
size_t alloc;
|
664 |
|
|
const char *str1, *str2;
|
665 |
|
|
bfd_boolean ret;
|
666 |
|
|
file_ptr c_loader;
|
667 |
|
|
|
668 |
|
|
if (!read_hdr (core_bfd, &core))
|
669 |
|
|
return FALSE;
|
670 |
|
|
|
671 |
|
|
if (CORE_NEW (core))
|
672 |
225 |
jeremybenn |
c_loader = CNEW_LOADER (core.new_dump);
|
673 |
24 |
jeremybenn |
else
|
674 |
|
|
c_loader = (file_ptr) (ptr_to_uint) COLD_LOADER (core.old);
|
675 |
|
|
|
676 |
225 |
jeremybenn |
if (CORE_NEW (core) && CNEW_PROC64 (core.new_dump))
|
677 |
24 |
jeremybenn |
size = (int) ((LdInfo *) 0)->l64.ldinfo_filename;
|
678 |
|
|
else
|
679 |
|
|
size = (int) ((LdInfo *) 0)->l32.ldinfo_filename;
|
680 |
|
|
|
681 |
|
|
if (bfd_seek (core_bfd, c_loader + size, SEEK_SET) != 0)
|
682 |
|
|
return FALSE;
|
683 |
|
|
|
684 |
|
|
alloc = 100;
|
685 |
|
|
path = bfd_malloc ((bfd_size_type) alloc);
|
686 |
|
|
if (path == NULL)
|
687 |
|
|
return FALSE;
|
688 |
|
|
s = path;
|
689 |
|
|
|
690 |
|
|
while (1)
|
691 |
|
|
{
|
692 |
|
|
if (bfd_bread (s, (bfd_size_type) 1, core_bfd) != 1)
|
693 |
|
|
{
|
694 |
|
|
free (path);
|
695 |
|
|
return FALSE;
|
696 |
|
|
}
|
697 |
|
|
if (*s == '\0')
|
698 |
|
|
break;
|
699 |
|
|
++s;
|
700 |
|
|
if (s == path + alloc)
|
701 |
|
|
{
|
702 |
|
|
char *n;
|
703 |
|
|
|
704 |
|
|
alloc *= 2;
|
705 |
|
|
n = bfd_realloc (path, (bfd_size_type) alloc);
|
706 |
|
|
if (n == NULL)
|
707 |
|
|
{
|
708 |
|
|
free (path);
|
709 |
|
|
return FALSE;
|
710 |
|
|
}
|
711 |
|
|
s = n + (path - s);
|
712 |
|
|
path = n;
|
713 |
|
|
}
|
714 |
|
|
}
|
715 |
|
|
|
716 |
|
|
str1 = strrchr (path, '/');
|
717 |
|
|
str2 = strrchr (exec_bfd->filename, '/');
|
718 |
|
|
|
719 |
|
|
/* step over character '/' */
|
720 |
|
|
str1 = str1 != NULL ? str1 + 1 : path;
|
721 |
|
|
str2 = str2 != NULL ? str2 + 1 : exec_bfd->filename;
|
722 |
|
|
|
723 |
|
|
if (strcmp (str1, str2) == 0)
|
724 |
|
|
ret = TRUE;
|
725 |
|
|
else
|
726 |
|
|
ret = FALSE;
|
727 |
|
|
|
728 |
|
|
free (path);
|
729 |
|
|
|
730 |
|
|
return ret;
|
731 |
|
|
}
|
732 |
|
|
|
733 |
|
|
char *
|
734 |
|
|
rs6000coff_core_file_failing_command (bfd *abfd)
|
735 |
|
|
{
|
736 |
|
|
CoreHdr *core = core_hdr (abfd);
|
737 |
|
|
char *com = CORE_NEW (*core) ?
|
738 |
225 |
jeremybenn |
CNEW_COMM (core->new_dump) : COLD_COMM (core->old);
|
739 |
24 |
jeremybenn |
|
740 |
|
|
if (*com)
|
741 |
|
|
return com;
|
742 |
|
|
else
|
743 |
|
|
return 0;
|
744 |
|
|
}
|
745 |
|
|
|
746 |
|
|
int
|
747 |
|
|
rs6000coff_core_file_failing_signal (bfd *abfd)
|
748 |
|
|
{
|
749 |
|
|
CoreHdr *core = core_hdr (abfd);
|
750 |
225 |
jeremybenn |
return CORE_NEW (*core) ? core->new_dump.c_signo : core->old.c_signo;
|
751 |
24 |
jeremybenn |
}
|
752 |
|
|
|
753 |
|
|
#endif /* AIX_CORE */
|