auto import from //depot/cupcake/@135843

1 files changed, 51 insertions, 0 deletions

diff --git a/libdw/dwarf_getstring.c b/libdw/dwarf_getstring.c
new file mode 100644
index 00000000..e4abe8cb
--- /dev/null
+++ b/libdw/dwarf_getstring.c
@@ -0,0 +1,51 @@
+/* Get string.
+   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 <string.h>
+#include "libdwP.h"
+
+
+const char *
+dwarf_getstring (dbg, offset, lenp)
+     Dwarf *dbg;
+     Dwarf_Off offset;
+     size_t *lenp;
+{
+  if (dbg == NULL)
+    return NULL;
+
+  if (dbg->sectiondata[IDX_debug_str] == NULL
+      || offset >= dbg->sectiondata[IDX_debug_str]->d_size)
+    {
+    no_string:
+      __libdw_seterrno (DWARF_E_NO_STRING);
+      return NULL;
+    }
+
+  const char *result = ((const char *) dbg->sectiondata[IDX_debug_str]->d_buf
+			+ offset);
+  const char *endp = memchr (result, '\0',
+			     dbg->sectiondata[IDX_debug_str]->d_size - offset);
+  if (endp == NULL)
+    goto no_string;
+
+  if (lenp != NULL)
+    *lenp = endp - result;
+
+  return result;
+}