1 files changed, 121 insertions, 0 deletions
diff --git a/src/libdw/dwarf_func_inline.c b/src/libdw/dwarf_func_inline.c
new file mode 100644
index 00000000..6018691a
--- /dev/null
+++ b/src/libdw/dwarf_func_inline.c
@@ -0,0 +1,121 @@
+/* Convenience functions for handling DWARF descriptions of inline functions.
+   Copyright (C) 2005,2006 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+
+   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 an Open Source Initiative certified open source license
+   (http://www.opensource.org/licenses/index.php) and to distribute linked
+   combinations including 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 "libdwP.h"
+#include <dwarf.h>
+
+struct visitor_info
+{
+  void *die_addr;
+  int (*callback) (Dwarf_Die *, void *);
+  void *arg;
+};
+
+static int
+scope_visitor (unsigned int depth __attribute__ ((unused)),
+	       struct Dwarf_Die_Chain *die, void *arg)
+{
+  struct visitor_info *const v = arg;
+
+  if (INTUSE(dwarf_tag) (&die->die) != DW_TAG_inlined_subroutine)
+    return DWARF_CB_OK;
+
+  Dwarf_Attribute attr_mem;
+  Dwarf_Attribute *attr = INTUSE(dwarf_attr) (&die->die, DW_AT_abstract_origin,
+					      &attr_mem);
+  if (attr == NULL)
+    return DWARF_CB_OK;
+
+  Dwarf_Die origin_mem;
+  Dwarf_Die *origin = INTUSE(dwarf_formref_die) (attr, &origin_mem);
+  if (origin == NULL)
+    return DWARF_CB_ABORT;
+
+  if (origin->addr != v->die_addr)
+    return DWARF_CB_OK;
+
+  return (*v->callback) (&die->die, v->arg);
+}
+
+int
+dwarf_func_inline (Dwarf_Die *func)
+{
+  Dwarf_Attribute attr_mem;
+  Dwarf_Word val;
+  if (INTUSE(dwarf_formudata) (INTUSE(dwarf_attr) (func, DW_AT_inline,
+						   &attr_mem),
+			       &val) == 0)
+  switch (val)
+    {
+    case DW_INL_not_inlined:
+      return 0;
+
+    case DW_INL_declared_not_inlined:
+      return -1;
+
+    case DW_INL_inlined:
+    case DW_INL_declared_inlined:
+      return 1;
+    }
+
+  return 0;
+}
+
+int
+dwarf_func_inline_instances (Dwarf_Die *func,
+			     int (*callback) (Dwarf_Die *, void *),
+			     void *arg)
+{
+  struct visitor_info v = { func->addr, callback, arg };
+  struct Dwarf_Die_Chain cu = { .die = CUDIE (func->cu), .parent = NULL };
+  return __libdw_visit_scopes (0, &cu, &scope_visitor, NULL, &v);
+}