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