diff options
Diffstat (limited to 'libdw/dwarf_decl_file.c')
| -rw-r--r-- | libdw/dwarf_decl_file.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/libdw/dwarf_decl_file.c b/libdw/dwarf_decl_file.c new file mode 100644 index 0000000..c81e35b --- /dev/null +++ b/libdw/dwarf_decl_file.c @@ -0,0 +1,110 @@ +/* Return file name containing definition of the given function. + Copyright (C) 2005, 2009 Red Hat, Inc. + This file is part of Red Hat elfutils. + Written by Ulrich Drepper <drepper@redhat.com>, 2005. + + 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 + <http://www.openinventionnetwork.com>. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <assert.h> +#include <dwarf.h> +#include "libdwP.h" + + +const char * +dwarf_decl_file (Dwarf_Die *die) +{ + Dwarf_Attribute attr_mem; + Dwarf_Sword idx = 0; + + if (INTUSE(dwarf_formsdata) (INTUSE(dwarf_attr_integrate) + (die, DW_AT_decl_file, &attr_mem), + &idx) != 0) + return NULL; + + /* Zero means no source file information available. */ + if (idx == 0) + { + __libdw_seterrno (DWARF_E_NO_ENTRY); + return NULL; + } + + /* Get the array of source files for the CU. */ + struct Dwarf_CU *cu = die->cu; + if (cu->lines == NULL) + { + Dwarf_Lines *lines; + size_t nlines; + + /* Let the more generic function do the work. It'll create more + data but that will be needed in an real program anyway. */ + (void) INTUSE(dwarf_getsrclines) (&CUDIE (cu), &lines, &nlines); + assert (cu->lines != NULL); + } + + if (cu->lines == (void *) -1l) + { + /* If the file index is not zero, there must be file information + available. */ + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + assert (cu->files != NULL && cu->files != (void *) -1l); + + if (idx >= cu->files->nfiles) + { + __libdw_seterrno (DWARF_E_INVALID_DWARF); + return NULL; + } + + return cu->files->info[idx].name; +} +OLD_VERSION (dwarf_decl_file, ELFUTILS_0.122) +NEW_VERSION (dwarf_decl_file, ELFUTILS_0.143) |