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, 478 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/builtins/lib/chk.c b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/chk.c
new file mode 100644
index 000000000..e5197902b
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/builtins/lib/chk.c
@@ -0,0 +1,478 @@
+#include <stdarg.h>
+#ifdef __unix__
+#include <sys/types.h>
+#endif
+
+extern void abort (void);
+
+extern int inside_main;
+void *chk_fail_buf[256] __attribute__((aligned (16)));
+volatile int chk_fail_allowed, chk_calls;
+volatile int memcpy_disallowed, mempcpy_disallowed, memmove_disallowed;
+volatile int memset_disallowed, strcpy_disallowed, stpcpy_disallowed;
+volatile int strncpy_disallowed, strcat_disallowed, strncat_disallowed;
+volatile int sprintf_disallowed, vsprintf_disallowed;
+volatile int snprintf_disallowed, vsnprintf_disallowed;
+extern __SIZE_TYPE__ strlen (const char *);
+extern int vsprintf (char *, const char *, va_list);
+
+void __attribute__((noreturn))
+__chk_fail (void)
+{
+  if (chk_fail_allowed)
+    __builtin_longjmp (chk_fail_buf, 1);
+  abort ();
+}
+
+void *
+memcpy (void *dst, const void *src, __SIZE_TYPE__ n)
+{
+  const char *srcp;
+  char *dstp;
+
+#ifdef __OPTIMIZE__
+  if (memcpy_disallowed && inside_main)
+    abort ();
+#endif
+
+  srcp = src;
+  dstp = dst;
+  while (n-- != 0)
+    *dstp++ = *srcp++;
+
+  return dst;
+}
+
+void *
+__memcpy_chk (void *dst, const void *src, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into memcpy.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (n > size)
+    __chk_fail ();
+  return memcpy (dst, src, n);
+}
+
+void *
+mempcpy (void *dst, const void *src, __SIZE_TYPE__ n)
+{
+  const char *srcp;
+  char *dstp;
+
+#ifdef __OPTIMIZE__
+  if (mempcpy_disallowed && inside_main)
+    abort ();
+#endif
+
+  srcp = src;
+  dstp = dst;
+  while (n-- != 0)
+    *dstp++ = *srcp++;
+
+  return dstp;
+}
+
+void *
+__mempcpy_chk (void *dst, const void *src, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into mempcpy.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (n > size)
+    __chk_fail ();
+  return mempcpy (dst, src, n);
+}
+
+void *
+memmove (void *dst, const void *src, __SIZE_TYPE__ n)
+{
+  const char *srcp;
+  char *dstp;
+
+#ifdef __OPTIMIZE__
+  if (memmove_disallowed && inside_main)
+    abort ();
+#endif
+
+  srcp = src;
+  dstp = dst;
+  if (srcp < dstp)
+    while (n-- != 0)
+      dstp[n] = srcp[n];
+  else
+    while (n-- != 0)
+      *dstp++ = *srcp++;
+
+  return dst;
+}
+
+void *
+__memmove_chk (void *dst, const void *src, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into memmove.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (n > size)
+    __chk_fail ();
+  return memmove (dst, src, n);
+}
+
+void *
+memset (void *dst, int c, __SIZE_TYPE__ n)
+{
+  /* Single-byte memsets should be done inline when optimisation
+     is enabled.  */
+#ifdef __OPTIMIZE__
+  if (memset_disallowed && inside_main && n < 2)
+    abort ();
+#endif
+
+  while (n-- != 0)
+    n[(char *) dst] = c;
+
+  return dst;
+}
+
+void *
+__memset_chk (void *dst, int c, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into memset.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (n > size)
+    __chk_fail ();
+  return memset (dst, c, n);
+}
+
+char *
+strcpy (char *d, const char *s)
+{
+  char *r = d;
+#ifdef __OPTIMIZE__
+  if (strcpy_disallowed && inside_main)
+    abort ();
+#endif
+  while ((*d++ = *s++));
+  return r;
+}
+
+char *
+__strcpy_chk (char *d, const char *s, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into strcpy.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (strlen (s) >= size)
+    __chk_fail ();
+  return strcpy (d, s);
+}
+
+char *
+stpcpy (char *dst, const char *src)
+{
+#ifdef __OPTIMIZE__
+  if (stpcpy_disallowed && inside_main)
+    abort ();
+#endif
+
+  while (*src != 0)
+    *dst++ = *src++;
+
+  *dst = 0;
+  return dst;
+}
+
+char *
+__stpcpy_chk (char *d, const char *s, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into stpcpy.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (strlen (s) >= size)
+    __chk_fail ();
+  return stpcpy (d, s);
+}
+
+char *
+strncpy (char *s1, const char *s2, __SIZE_TYPE__ n)
+{
+  char *dest = s1;
+#ifdef __OPTIMIZE__
+  if (strncpy_disallowed && inside_main)
+    abort();
+#endif
+  for (; *s2 && n; n--)
+    *s1++ = *s2++;
+  while (n--)
+    *s1++ = 0;
+  return dest;
+}
+
+char *
+__strncpy_chk (char *s1, const char *s2, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into strncpy.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (n > size)
+    __chk_fail ();
+  return strncpy (s1, s2, n);
+}
+
+char *
+strcat (char *dst, const char *src)
+{
+  char *p = dst;
+  
+#ifdef __OPTIMIZE__
+  if (strcat_disallowed && inside_main)
+    abort ();
+#endif
+
+  while (*p)
+    p++;
+  while ((*p++ = *src++))
+    ;
+  return dst;
+}
+
+char *
+__strcat_chk (char *d, const char *s, __SIZE_TYPE__ size)
+{
+  /* If size is -1, GCC should always optimize the call into strcat.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  if (strlen (d) + strlen (s) >= size)
+    __chk_fail ();
+  return strcat (d, s);
+}
+
+char *
+strncat (char *s1, const char *s2, __SIZE_TYPE__ n)
+{
+  char *dest = s1;
+  char c;
+#ifdef __OPTIMIZE__
+  if (strncat_disallowed && inside_main)
+    abort();
+#endif
+  while (*s1) s1++;
+  c = '\0';
+  while (n > 0)
+    {
+      c = *s2++;
+      *s1++ = c;
+      if (c == '\0')
+	return dest;
+      n--;
+    }
+  if (c != '\0')
+    *s1 = '\0';
+  return dest;
+}
+
+char *
+__strncat_chk (char *d, const char *s, __SIZE_TYPE__ n, __SIZE_TYPE__ size)
+{
+  __SIZE_TYPE__ len = strlen (d), n1 = n;
+  const char *s1 = s;
+
+  /* If size is -1, GCC should always optimize the call into strncat.  */
+  if (size == (__SIZE_TYPE__) -1)
+    abort ();
+  ++chk_calls;
+  while (len < size && n1 > 0)
+    {
+      if (*s1++ == '\0')
+	break;
+      ++len;
+      --n1;
+    }
+
+  if (len >= size)
+    __chk_fail ();
+  return strncat (d, s, n);
+}
+
+/* No chk test in GCC testsuite needs more bytes than this.
+   As we can't expect vsnprintf to be available on the target,
+   assume 4096 bytes is enough.  */
+static char chk_sprintf_buf[4096];
+
+int
+__sprintf_chk (char *str, int flag, __SIZE_TYPE__ size, const char *fmt, ...)
+{
+  int ret;
+  va_list ap;
+
+  /* If size is -1 and flag 0, GCC should always optimize the call into
+     sprintf.  */
+  if (size == (__SIZE_TYPE__) -1 && flag == 0)
+    abort ();
+  ++chk_calls;
+#ifdef __OPTIMIZE__
+  if (sprintf_disallowed && inside_main)
+    abort();
+#endif
+  va_start (ap, fmt);
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  va_end (ap);
+  if (ret >= 0)
+    {
+      if (ret >= size)
+	__chk_fail ();
+      memcpy (str, chk_sprintf_buf, ret + 1);
+    }
+  return ret;
+}
+
+int
+__vsprintf_chk (char *str, int flag, __SIZE_TYPE__ size, const char *fmt,
+		va_list ap)
+{
+  int ret;
+
+  /* If size is -1 and flag 0, GCC should always optimize the call into
+     vsprintf.  */
+  if (size == (__SIZE_TYPE__) -1 && flag == 0)
+    abort ();
+  ++chk_calls;
+#ifdef __OPTIMIZE__
+  if (vsprintf_disallowed && inside_main)
+    abort();
+#endif
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  if (ret >= 0)
+    {
+      if (ret >= size)
+	__chk_fail ();
+      memcpy (str, chk_sprintf_buf, ret + 1);
+    }
+  return ret;
+}
+
+int
+__snprintf_chk (char *str, __SIZE_TYPE__ len, int flag, __SIZE_TYPE__ size,
+		const char *fmt, ...)
+{
+  int ret;
+  va_list ap;
+
+  /* If size is -1 and flag 0, GCC should always optimize the call into
+     snprintf.  */
+  if (size == (__SIZE_TYPE__) -1 && flag == 0)
+    abort ();
+  ++chk_calls;
+  if (size < len)
+    __chk_fail ();
+#ifdef __OPTIMIZE__
+  if (snprintf_disallowed && inside_main)
+    abort();
+#endif
+  va_start (ap, fmt);
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  va_end (ap);
+  if (ret >= 0)
+    {
+      if (ret < len)
+	memcpy (str, chk_sprintf_buf, ret + 1);
+      else
+	{
+	  memcpy (str, chk_sprintf_buf, len - 1);
+	  str[len - 1] = '\0';
+	}
+    }
+  return ret;
+}
+
+int
+__vsnprintf_chk (char *str, __SIZE_TYPE__ len, int flag, __SIZE_TYPE__ size,
+		 const char *fmt, va_list ap)
+{
+  int ret;
+
+  /* If size is -1 and flag 0, GCC should always optimize the call into
+     vsnprintf.  */
+  if (size == (__SIZE_TYPE__) -1 && flag == 0)
+    abort ();
+  ++chk_calls;
+  if (size < len)
+    __chk_fail ();
+#ifdef __OPTIMIZE__
+  if (vsnprintf_disallowed && inside_main)
+    abort();
+#endif
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  if (ret >= 0)
+    {
+      if (ret < len)
+	memcpy (str, chk_sprintf_buf, ret + 1);
+      else
+	{
+	  memcpy (str, chk_sprintf_buf, len - 1);
+	  str[len - 1] = '\0';
+	}
+    }
+  return ret;
+}
+
+int
+snprintf (char *str, __SIZE_TYPE__ len, const char *fmt, ...)
+{
+  int ret;
+  va_list ap;
+
+#ifdef __OPTIMIZE__
+  if (snprintf_disallowed && inside_main)
+    abort();
+#endif
+  va_start (ap, fmt);
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  va_end (ap);
+  if (ret >= 0)
+    {
+      if (ret < len)
+	memcpy (str, chk_sprintf_buf, ret + 1);
+      else if (len)
+	{
+	  memcpy (str, chk_sprintf_buf, len - 1);
+	  str[len - 1] = '\0';
+	}
+    }
+  return ret;
+}
+
+/* uClibc's vsprintf calls vsnprintf.  */
+#ifndef __UCLIBC__
+int
+vsnprintf (char *str, __SIZE_TYPE__ len, const char *fmt, va_list ap)
+{
+  int ret;
+
+#ifdef __OPTIMIZE__
+  if (vsnprintf_disallowed && inside_main)
+    abort();
+#endif
+  ret = vsprintf (chk_sprintf_buf, fmt, ap);
+  if (ret >= 0)
+    {
+      if (ret < len)
+	memcpy (str, chk_sprintf_buf, ret + 1);
+      else if (len)
+	{
+	  memcpy (str, chk_sprintf_buf, len - 1);
+	  str[len - 1] = '\0';
+	}
+    }
+  return ret;
+}
+#endif