obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 48 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c b/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c
new file mode 100644
index 000000000..044541ba8
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/va-arg-21.c
@@ -0,0 +1,48 @@
+/* Copyright (C) 2000  Free Software Foundation.
+
+   If the argument to va_end() has side effects, test whether side
+   effects from that argument are honored.
+
+   Written by Kaveh R. Ghazi, 10/31/2000.  */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#ifndef __GNUC__
+#define __attribute__(x)
+#endif
+
+static void __attribute__ ((__format__ (__printf__, 1, 2)))
+doit (const char *s, ...) 
+{
+  va_list *ap_array[3], **ap_ptr = ap_array;
+
+  ap_array[0] = malloc (sizeof(va_list));
+  ap_array[1] = NULL;
+  ap_array[2] = malloc (sizeof(va_list));
+  
+  va_start (*ap_array[0], s);
+  vprintf (s, **ap_ptr);
+  /* Increment the va_list pointer once.  */
+  va_end (**ap_ptr++);
+
+  /* Increment the va_list pointer a second time.  */
+  ap_ptr++;
+  
+  va_start (*ap_array[2], s);
+  /* If we failed to increment ap_ptr twice, then the parameter passed
+     in here will dereference NULL and should cause a crash.  */
+  vprintf (s, **ap_ptr);
+  va_end (**ap_ptr);
+
+  /* Just in case, If *ap_ptr is NULL abort anyway.  */
+  if (*ap_ptr == 0)
+    abort();
+}
+
+int main()
+{
+  doit ("%s", "hello world\n");
+  exit (0);
+}