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, 67 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/pr23484-chk.c b/gcc/testsuite/gcc.c-torture/execute/builtins/pr23484-chk.c
new file mode 100644
index 000000000..446fb6c2f
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/pr23484-chk.c
@@ -0,0 +1,67 @@
+/* PR middle-end/23484 */
+
+extern void abort (void);
+typedef __SIZE_TYPE__ size_t;
+extern size_t strlen (const char *);
+extern void *memcpy (void *, const void *, size_t);
+extern void *mempcpy (void *, const void *, size_t);
+extern void *memmove (void *, const void *, size_t);
+extern int snprintf (char *, size_t, const char *, ...);
+extern int memcmp (const void *, const void *, size_t);
+
+#include "chk.h"
+
+static char data[8] = "ABCDEFG";
+
+int l1;
+
+void
+__attribute__((noinline))
+test1 (void)
+{
+  char buf[8];
+
+  /* All the checking calls in this routine have a maximum length, so
+     object size checking should be done at compile time if optimizing.  */
+  chk_calls = 0;
+
+  memset (buf, 'I', sizeof (buf));
+  if (memcpy (buf, data, l1 ? sizeof (buf) : 4) != buf
+      || memcmp (buf, "ABCDIIII", 8))
+    abort ();
+
+  memset (buf, 'J', sizeof (buf));
+  if (mempcpy (buf, data, l1 ? sizeof (buf) : 4) != buf + 4
+      || memcmp (buf, "ABCDJJJJ", 8))
+    abort ();
+
+  memset (buf, 'K', sizeof (buf));
+  if (memmove (buf, data, l1 ? sizeof (buf) : 4) != buf
+      || memcmp (buf, "ABCDKKKK", 8))
+    abort ();
+
+  memset (buf, 'L', sizeof (buf));
+#if(__SIZEOF_INT__ >= 4)  
+  if (snprintf (buf, l1 ? sizeof (buf) : 4, "%d", l1 + 65536) != 5
+      || memcmp (buf, "655\0LLLL", 8))
+    abort ();
+#else
+  if (snprintf (buf, l1 ? sizeof (buf) : 4, "%d", l1 + 32700) != 5
+      || memcmp (buf, "327\0LLLL", 8))
+    abort ();
+#endif
+
+  if (chk_calls)
+    abort ();
+}
+
+void
+main_test (void)
+{
+#ifndef __OPTIMIZE__
+  /* Object size checking is only intended for -O[s123].  */
+  return;
+#endif
+  __asm ("" : "=r" (l1) : "0" (l1));
+  test1 ();
+}