Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/libdw/dwarf_decl_file.c b/libdw/dwarf_decl_file.c
new file mode 100644
index 0000000..5657132
--- /dev/null
+++ b/libdw/dwarf_decl_file.c
@@ -0,0 +1,89 @@
+/* Return file name containing definition of the given function.
+ Copyright (C) 2005, 2009 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2005.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ 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 copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#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_Word idx = 0;
+
+ if (INTUSE(dwarf_formudata) (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)