1 files changed, 58 insertions, 0 deletions
diff --git a/libdw/dwarf_getsrcfiles.c b/libdw/dwarf_getsrcfiles.c
new file mode 100644
index 00000000..1775168d
--- /dev/null
+++ b/libdw/dwarf_getsrcfiles.c
@@ -0,0 +1,58 @@
+/* Return source file information of CU.
+   Copyright (C) 2004 Red Hat, Inc.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2004.
+
+   This program is Open Source software; you can redistribute it and/or
+   modify it under the terms of the Open Software License version 1.0 as
+   published by the Open Source Initiative.
+
+   You should have received a copy of the Open Software License along
+   with this program; if not, you may obtain a copy of the Open Software
+   License version 1.0 from http://www.opensource.org/licenses/osl.php or
+   by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
+   3001 King Ranch Road, Ukiah, CA 95482.   */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <dwarf.h>
+#include "libdwP.h"
+
+
+int
+dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles)
+{
+  if (unlikely (cudie == NULL || dwarf_tag (cudie) != DW_TAG_compile_unit))
+    return -1;
+
+  int res = -1;
+
+  /* Get the information if it is not already known.  */
+  struct Dwarf_CU *const cu = cudie->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.  */
+      res = dwarf_getsrclines (cudie, &lines, &nlines);
+    }
+  else if (cu->files != (void *) -1l)
+    /* We already have the information.  */
+    res = 0;
+
+  if (likely (res == 0))
+    {
+      assert (cu->files != NULL && cu->files != (void *) -1l);
+      *files = cu->files;
+      if (nfiles != NULL)
+	*nfiles = cu->files->nfiles;
+    }
+
+  // XXX Eventually: unlocking here.
+
+  return res;
+}