From 5eafdf0f9bfd9a3c5f93414ac16bb399b6da0b7f Mon Sep 17 00:00:00 2001
From: Chih-Hung Hsieh <chh@google.com>
Date: Thu, 24 Sep 2015 15:42:30 -0700
Subject: Move files up to match upstream source structure.

To create an upstream-master branch later and keep track
of upstream changes.
* src/Android.mk file is deleted because ./Android.mk
  is identical and serves the same purpose.
* ./Makefile.am is moved from old src/Makefile.am,
  and new src/Makefile.am is from old src/src/Makefile.am.
  Similarly, ./ChangeLog is moved from old src/ChangeLog,
  and new src/ChangeLog is from old src/src/ChangeLog.
* Remove unnecessary files that were generated by
  autoconf or configure.

Change-Id: Iafc67d1e80f9d7ad2a74bc851bf9ca9e87205336
---
 libdw/dwarf_getlocation_implicit_pointer.c | 79 ++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 libdw/dwarf_getlocation_implicit_pointer.c

(limited to 'libdw/dwarf_getlocation_implicit_pointer.c')

diff --git a/libdw/dwarf_getlocation_implicit_pointer.c b/libdw/dwarf_getlocation_implicit_pointer.c
new file mode 100644
index 00000000..f1c16be7
--- /dev/null
+++ b/libdw/dwarf_getlocation_implicit_pointer.c
@@ -0,0 +1,79 @@
+/* Return associated attribute for DW_OP_GNU_implicit_pointer.
+   Copyright (C) 2010 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 <dwarf.h>
+
+
+static unsigned char empty_exprloc = 0;
+static Dwarf_CU empty_cu = { .startp = &empty_exprloc,
+			     .endp = &empty_exprloc + 1 };
+
+void
+internal_function
+__libdw_empty_loc_attr (Dwarf_Attribute *attr)
+{
+  attr->code = DW_AT_location;
+  attr->form = DW_FORM_exprloc;
+  attr->valp = &empty_exprloc;
+  attr->cu = &empty_cu;
+}
+
+int
+dwarf_getlocation_implicit_pointer (attr, op, result)
+     Dwarf_Attribute *attr;
+     const Dwarf_Op *op;
+     Dwarf_Attribute *result;
+{
+  if (attr == NULL)
+    return -1;
+
+  if (unlikely (op->atom != DW_OP_GNU_implicit_pointer))
+    {
+      __libdw_seterrno (DWARF_E_INVALID_ACCESS);
+      return -1;
+    }
+
+  Dwarf_Die die;
+  if (__libdw_offdie (attr->cu->dbg, op->number, &die,
+		      attr->cu->type_offset != 0) == NULL)
+    return -1;
+
+  if (INTUSE(dwarf_attr) (&die, DW_AT_location, result) == NULL
+      && INTUSE(dwarf_attr) (&die, DW_AT_const_value, result) == NULL)
+    {
+      __libdw_empty_loc_attr (result);
+      return 0;
+    }
+
+  return 0;
+}
-- 
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