146 lines
5.9 KiB
C
146 lines
5.9 KiB
C
/* Retrieve ELF descriptor used for DWARF access.
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Copyright (C) 2002, 2003, 2004, 2005, 2009 Red Hat, Inc.
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This file is part of Red Hat elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 2002.
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Red Hat elfutils 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 the
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Free Software Foundation; version 2 of the License.
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Red Hat elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with Red Hat elfutils; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
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In addition, as a special exception, Red Hat, Inc. gives You the
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additional right to link the code of Red Hat elfutils with code licensed
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under any Open Source Initiative certified open source license
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(http://www.opensource.org/licenses/index.php) which requires the
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distribution of source code with any binary distribution and to
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distribute linked combinations of the two. Non-GPL Code permitted under
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this exception must only link to the code of Red Hat elfutils through
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those well defined interfaces identified in the file named EXCEPTION
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found in the source code files (the "Approved Interfaces"). The files
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of Non-GPL Code may instantiate templates or use macros or inline
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functions from the Approved Interfaces without causing the resulting
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work to be covered by the GNU General Public License. Only Red Hat,
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Inc. may make changes or additions to the list of Approved Interfaces.
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Red Hat's grant of this exception is conditioned upon your not adding
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any new exceptions. If you wish to add a new Approved Interface or
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exception, please contact Red Hat. You must obey the GNU General Public
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License in all respects for all of the Red Hat elfutils code and other
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code used in conjunction with Red Hat elfutils except the Non-GPL Code
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covered by this exception. If you modify this file, you may extend this
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exception to your version of the file, but you are not obligated to do
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so. If you do not wish to provide this exception without modification,
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you must delete this exception statement from your version and license
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this file solely under the GPL without exception.
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Red Hat elfutils is an included package of the Open Invention Network.
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An included package of the Open Invention Network is a package for which
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Open Invention Network licensees cross-license their patents. No patent
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license is granted, either expressly or impliedly, by designation as an
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included package. Should you wish to participate in the Open Invention
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Network licensing program, please visit www.openinventionnetwork.com
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<http://www.openinventionnetwork.com>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <assert.h>
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#include <stddef.h>
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#include "libdwP.h"
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/* The error number. */
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#ifdef __APPLE__
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static int global_error;
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#else
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static __thread int global_error;
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#endif
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int
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dwarf_errno (void)
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{
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int result = global_error;
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global_error = DWARF_E_NOERROR;
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return result;
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}
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INTDEF(dwarf_errno)
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/* XXX For now we use string pointers. Once the table stablelizes
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make it more DSO-friendly. */
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static const char *errmsgs[] =
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{
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[DWARF_E_NOERROR] = N_("no error"),
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[DWARF_E_UNKNOWN_ERROR] = N_("unknown error"),
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[DWARF_E_INVALID_ACCESS] = N_("invalid access"),
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[DWARF_E_NO_REGFILE] = N_("no regular file"),
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[DWARF_E_IO_ERROR] = N_("I/O error"),
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[DWARF_E_INVALID_ELF] = N_("invalid ELF file"),
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[DWARF_E_NO_DWARF] = N_("no DWARF information"),
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[DWARF_E_NOELF] = N_("no ELF file"),
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[DWARF_E_GETEHDR_ERROR] = N_("cannot get ELF header"),
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[DWARF_E_NOMEM] = N_("out of memory"),
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[DWARF_E_UNIMPL] = N_("not implemented"),
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[DWARF_E_INVALID_CMD] = N_("invalid command"),
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[DWARF_E_INVALID_VERSION] = N_("invalid version"),
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[DWARF_E_INVALID_FILE] = N_("invalid file"),
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[DWARF_E_NO_ENTRY] = N_("no entries found"),
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[DWARF_E_INVALID_DWARF] = N_("invalid DWARF"),
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[DWARF_E_NO_STRING] = N_("no string data"),
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[DWARF_E_NO_ADDR] = N_("no address value"),
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[DWARF_E_NO_CONSTANT] = N_("no constant value"),
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[DWARF_E_NO_REFERENCE] = N_("no reference value"),
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[DWARF_E_INVALID_REFERENCE] = N_("invalid reference value"),
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[DWARF_E_NO_DEBUG_LINE] = N_(".debug_line section missing"),
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[DWARF_E_INVALID_DEBUG_LINE] = N_("invalid .debug_line section"),
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[DWARF_E_TOO_BIG] = N_("debug information too big"),
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[DWARF_E_VERSION] = N_("invalid DWARF version"),
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[DWARF_E_INVALID_DIR_IDX] = N_("invalid directory index"),
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[DWARF_E_ADDR_OUTOFRANGE] = N_("address out of range"),
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[DWARF_E_NO_LOCLIST] = N_("no location list value"),
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[DWARF_E_NO_BLOCK] = N_("no block data"),
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[DWARF_E_INVALID_LINE_IDX] = N_("invalid line index"),
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[DWARF_E_INVALID_ARANGE_IDX] = N_("invalid address range index"),
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[DWARF_E_NO_MATCH] = N_("no matching address range"),
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[DWARF_E_NO_FLAG] = N_("no flag value"),
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[DWARF_E_INVALID_OFFSET] = N_("invalid offset"),
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[DWARF_E_NO_DEBUG_RANGES] = N_(".debug_ranges section missing"),
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[DWARF_E_INVALID_CFI] = N_("invalid CFI section"),
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};
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#define nerrmsgs (sizeof (errmsgs) / sizeof (errmsgs[0]))
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void
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__libdw_seterrno (value)
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int value;
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{
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global_error = (value >= 0 && value < (int) nerrmsgs
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? value : DWARF_E_UNKNOWN_ERROR);
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}
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const char *
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dwarf_errmsg (error)
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int error;
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{
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int last_error = global_error;
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if (error == 0)
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return last_error != 0 ? _(errmsgs[last_error]) : NULL;
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else if (error < -1 || error >= (int) nerrmsgs)
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return _(errmsgs[DWARF_E_UNKNOWN_ERROR]);
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return _(errmsgs[error == -1 ? last_error : error]);
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}
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INTDEF(dwarf_errmsg)
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