about summary refs log tree commit diff
path: root/REORG.TODO/debug/readonly-area.c
diff options
context:
space:
mode:
Diffstat (limited to 'REORG.TODO/debug/readonly-area.c')
-rw-r--r--REORG.TODO/debug/readonly-area.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/REORG.TODO/debug/readonly-area.c b/REORG.TODO/debug/readonly-area.c
new file mode 100644
index 0000000000..922e87fe63
--- /dev/null
+++ b/REORG.TODO/debug/readonly-area.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 2004-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdlib.h>
+
+/* Return 1 if the whole area PTR .. PTR+SIZE is not writable.
+   Return -1 if it is writable.  */
+
+int
+__readonly_area (const void *ptr, size_t size)
+{
+  /* We cannot determine in general whether memory is writable or not.
+     This must be handled in a system-dependent manner.  to not
+     unconditionally break code we need to return here a positive
+     answer.  This disables this security measure but that is the
+     price people have to pay for using systems without a real
+     implementation of this interface.  */
+  return 1;
+}