1 files changed, 74 insertions, 0 deletions
diff --git a/libdw/dwarf_getscopes_die.c b/libdw/dwarf_getscopes_die.c
new file mode 100644
index 00000000..d3615852
--- /dev/null
+++ b/libdw/dwarf_getscopes_die.c
@@ -0,0 +1,74 @@
+/* Return scope DIEs containing given DIE.
+   Copyright (C) 2005 Red Hat, Inc.
+   This file is part of elfutils.
+
+   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 "libdwP.h"
+#include <assert.h>
+#include <stdlib.h>
+
+static int
+scope_visitor (unsigned int depth, struct Dwarf_Die_Chain *die, void *arg)
+{
+  if (die->die.addr != *(void **) arg)
+    return 0;
+
+  Dwarf_Die *scopes = malloc (depth * sizeof scopes[0]);
+  if (scopes == NULL)
+    {
+      __libdw_seterrno (DWARF_E_NOMEM);
+      return -1;
+    }
+
+  unsigned int i = 0;
+  do
+    {
+      scopes[i++] = die->die;
+      die = die->parent;
+    }
+  while (die != NULL);
+  assert (i == depth);
+
+  *(void **) arg = scopes;
+  return depth;
+}
+
+int
+dwarf_getscopes_die (Dwarf_Die *die, Dwarf_Die **scopes)
+{
+  if (die == NULL)
+    return -1;
+
+  struct Dwarf_Die_Chain cu = { .die = CUDIE (die->cu), .parent = NULL };
+  void *info = die->addr;
+  int result = __libdw_visit_scopes (1, &cu, &scope_visitor, NULL, &info);
+  if (result > 0)
+    *scopes = info;
+  return result;
+}