1 files changed, 72 insertions, 0 deletions
diff --git a/libdwarf/dwarf_formsdata.c b/libdwarf/dwarf_formsdata.c
new file mode 100644
index 00000000..8024e763
--- /dev/null
+++ b/libdwarf/dwarf_formsdata.c
@@ -0,0 +1,72 @@
+/* Return signed constant represented by attribute.
+   Copyright (C) 2000, 2002 Red Hat, Inc.
+   Written by Ulrich Drepper <drepper@redhat.com>, 2000.
+
+   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 <dwarf.h>
+
+#include <libdwarfP.h>
+
+
+int
+dwarf_formsdata (attr, return_sval, error)
+     Dwarf_Attribute attr;
+     Dwarf_Signed *return_sval;
+     Dwarf_Error *error;
+{
+  Dwarf_Signed u128;
+
+  switch (attr->form)
+    {
+    case DW_FORM_data1:
+      *return_sval = *attr->valp;
+      break;
+
+    case DW_FORM_data2:
+      *return_sval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp);
+      break;
+
+    case DW_FORM_data4:
+      *return_sval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp);
+      break;
+
+    case DW_FORM_data8:
+      *return_sval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp);
+      break;
+
+    case DW_FORM_sdata:
+      {
+	Dwarf_Small *attrp = attr->valp;
+	get_sleb128 (u128, attrp);
+	*return_sval = u128;
+      }
+      break;
+
+    case DW_FORM_udata:
+      {
+	Dwarf_Small *attrp = attr->valp;
+	get_uleb128 (u128, attrp);
+	*return_sval = u128;
+      }
+      break;
+
+    default:
+      __libdwarf_error (attr->cu->dbg, error, DW_E_NO_CONSTANT);
+      return DW_DLV_ERROR;
+    }
+
+  return DW_DLV_OK;
+}