* Makerules (sysd-rules): Define PTW for ptw-* files.

* Versions: Define GLIBC_2.7 for libc.
	* include/stdio.h: Declare __fortify_fail.
	* debug/fortify_fail.c: New file.
	* debug/Makefile (routines): Add fortify_fail.
	* debug/chk_fail.c: Use __fortify_fail.
	* debug/stack_chk_fail.c: Likewise.
	* io/Versions: Export __open_2, __open64_2, __openat_2, and
	__openat64_2 for GLIBC_2.7.
	* io/fcntl.h: When compiling with fortification, include bits/fcntl2.h.
	* io/open.c: Define *_2 variant of function which checks for O_CREAT
	and fails if necessary.
	* io/open64.c: Likewise.
	* io/openat.c: Likewise.
	* io/openat64.c: Likewise.
	* sysdeps/unix/sysv/linux/open64.c: Likewise.
	* sysdeps/unix/sysv/linux/openat.c: Likewise.
	* sysdeps/unix/sysv/linux/openat64.c: Likewise.
	* io/bits/fcntl2.h: New file.
	* include/fcntl.h: Declare __open_2, __open64_2, __openat_2, and
	__openat64_2.
	* include/bits/fcntl2.h: New file.
	* sysdeps/unix/sysv/linux/Makefile [subdir=io] (sysdep_routines):
	Add open_2.
	* sysdeps/unix/sysv/linux/open_2.c: New file.

debug/Makefile

@@ -1,4 +1,4 @@
-# Copyright (C) 1998-2001,2004,2005,2006 Free Software Foundation, Inc.
+# Copyright (C) 1998-2001,2004,2005,2006,2007 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
@@ -42,7 +42,7 @@ routines  = backtrace backtracesyms backtracesymsfd noophooks \
 	    gethostname_chk getdomainname_chk wcrtomb_chk mbsnrtowcs_chk \
 	    wcsnrtombs_chk mbsrtowcs_chk wcsrtombs_chk mbstowcs_chk \
 	    wcstombs_chk \
-	    stack_chk_fail \
+	    stack_chk_fail fortify_fail \
 	    $(static-only-routines)
 static-only-routines := warning-nop stack_chk_fail_local
 

debug/chk_fail.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2004, 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2004, 2005, 2007 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
@@ -26,9 +26,6 @@ void
 __attribute__ ((noreturn))
 __chk_fail (void)
 {
-  /* The loop is added only to keep gcc happy.  */
-  while (1)
-    __libc_message (2, "*** buffer overflow detected ***: %s terminated\n",
-		    __libc_argv[0] ?: "<unknown>");
+  __fortify_fail ("buffer overflow detected");
 }
 libc_hidden_def (__chk_fail)

debug/fortify_fail.c

@@ -0,0 +1,34 @@
+/* Copyright (C) 2007 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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+extern char **__libc_argv attribute_hidden;
+
+void
+__attribute__ ((noreturn))
+__fortify_fail (msg)
+     const char *msg;
+{
+  /* The loop is added only to keep gcc happy.  */
+  while (1)
+    __libc_message (2, "*** %s ***: %s terminated\n",
+		    msg, __libc_argv[0] ?: "<unknown>");
+}

debug/stack_chk_fail.c

@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2007 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
@@ -26,8 +26,5 @@ void
 __attribute__ ((noreturn))
 __stack_chk_fail (void)
 {
-  /* The loop is added only to keep gcc happy.  */
-  while (1)
-    __libc_message (1, "*** stack smashing detected ***: %s terminated\n",
-		    __libc_argv[0] ?: "<unknown>");
+  __fortify_fail ("stack smashing detected");
 }