* misc/sys/cdefs.h (__va_arg_pack): Define for GCC 4.3+.

	* misc/bits/syslog.h (syslog): When __va_arg_pack is defined,
	implement as __extern_always_inline function.
	(vsyslog): Define as __extern_always_inline function unconditionally.
	* libio/bits/stdio2.h (sprintf, snprintf, printf, fprintf):
	When __va_arg_pack is defined, implement as __extern_always_inline
	functions.
	(vsprintf, vsnprintf, vprintf, vfprintf): Define as
	__extern_always_inline functions unconditionally.
	* libio/bits/stdio.h (vprintf): Ifdef out the inline when
	bits/stdio2.h will be included.
	* wcsmbs/bits/wchar2.h (__swprintf_alias): New redirect.
	(swprintf, wprintf, fwprintf): When __va_arg_pack is defined,
	implement as __extern_always_inline functions.
	(vswprintf, vwprintf, vfwprintf): Define as
	__extern_always_inline functions unconditionally.
	* debug/tst-chk1.c (do_test): Enable remaining tests for C++.

2007-09-03  Jakub Jelinek  <jakub@redhat.com>

	* misc/sys/cdefs.h (__extern_inline, __extern_always_inline): Only
	define in C++ for GCC 4.3+, in C++ always use __gnu_inline__
	attribute.
	* include/features.h (__USE_EXTERN_INLINES): Define only when
	__extern_inline is defined.
	* stdlib/stdlib.h: Include bits/stdlib.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	* misc/sys/syslog.h: Include bits/syslog.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	* socket/sys/socket.h: Include bits/socket2.h when
	__extern_always_inline is defined instead of when not __cplusplus.
	* libio/stdio.h: Include bits/stdio2.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	* posix/unistd.h: Include bits/unistd.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	* string/string.h: Include bits/string3.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	* wcsmbs/wchar.h: Include bits/wchar2.h when __extern_always_inline
	is defined instead of when not __cplusplus.
	(btowc, wctob): Don't guard the inlines with ifndef __cplusplus.
	* io/fcntl.h: Don't include bits/fcntl2.h if __extern_always_inline
	is not defined.
	* misc/bits/syslog-ldbl.h: Guard *_chk stuff with
	defined __extern_always_inline instead of !defined __cplusplus.
	* libio/bits/stdio-ldbl.h: Likewise.
	* wcsmbs/bits/wchar-ldbl.h: Likewise.
	* misc/bits/syslog.h (syslog): Don't define for C++.
	(vsyslog): Use __extern_always_inline function for C++ instead of
	a macro.
	* libio/bits/stdio.h (__STDIO_INLINE): Define to __extern_inline
	whenever that macro is defined.
	(vprintf): Don't provide the inline for C++.
	(fread_unlocked, fwrite_unlocked): Don't define the macros for C++.
	* libio/bits/stdio2.h (sprintf, snprintf, printf, fprintf): Don't
	define the macros for C++.
	(vsprintf, vsnprintf, vprintf, vfprintf): Define as
	__extern_always_inline functions for C++.
	* io/sys/stat.h (stat, lstat, fstat, fstatat, mknod, mknodat,
	stat64, lstat64, fstat64, fstatat64): Don't define if not
	__USE_EXTERN_INLINES.
	* wcsmbs/bits/wchar2.h: Fix #error message.
	(swprintf, wprintf, fwprintf): Don't define the macros for C++.
	(vswprintf, vwprintf, vfwprintf): Define using
	__extern_always_inline functions for C++.
	* string/bits/string3.h: Don't #undef macros if __cplusplus.
	(memcpy, memmove, mempcpy, memset, bcopy, bzero, strcpy, stpcpy,
	strncpy, strcat, strncat): Define as __extern_always_inline
	functions instead of macros for C++.
	* math/bits/cmathcalls.h: Guard __extern_inline routines with
	defined __extern_inline.
	* sysdeps/alpha/fpu/bits/mathinline.h (__MATH_INLINE): Define
	to __extern_inline whenever that macro is defined.
	* sysdeps/ia64/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/i386/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/i386/i486/bits/string.h (__STRING_INLINE): Likewise.
	* sysdeps/s390/bits/string.h (__STRING_INLINE): Likewise.
	* sysdeps/s390/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/powerpc/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/x86_64/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/sparc/fpu/bits/mathinline.h (__MATH_INLINE): Likewise.
	* sysdeps/unix/sysv/linux/sys/sysmacros.h (gnu_dev_major,
	gnu_dev_minor, gnu_dev_makedev): Remove __extern_inline from
	prototypes.  Only provide __extern_inline routines if
	__USE_EXTERN_INLINES.
	* debug/Makefile: Add rules to build and run tst-{,lfs}chk{4,5,6}
	tests.
	* debug/tst-chk1.c (do_prepare, do_test): Allow compilation as C++.
	For now avoid some *printf tests in C++.  Skip all testing
	if __USE_FORTIFY_LEVEL is defined, but __extern_always_inline macro
	is not.
	* debug/tst-chk4.cc: New file.
	* debug/tst-chk5.cc: New file.
	* debug/tst-chk6.cc: New file.
	* debug/tst-lfschk4.cc: New file.
	* debug/tst-lfschk5.cc: New file.
	* debug/tst-lfschk6.cc: New file.
	* include/wchar.h (__vfwprintf_chk, __vswprintf_chk): Avoid
	prototypes in C++.
	* include/stdio.h (__sprintf_chk, __snprintf_chk, __vsprintf_chk,
	__vsnprintf_chk, __printf_chk, __fprintf_chk, __vprintf_chk,
	__vfprintf_chk, __fgets_unlocked_chk, __fgets_chk): Likewise.

4 files changed, 81 insertions, 18 deletions

diff --git a/libio/bits/stdio-ldbl.h b/libio/bits/stdio-ldbl.h
index 7a42912..b6ec7f3 100644
--- a/libio/bits/stdio-ldbl.h
+++ b/libio/bits/stdio-ldbl.h
@@ -1,5 +1,5 @@
 /* -mlong-double-64 compatibility mode for stdio functions.
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 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
@@ -58,7 +58,7 @@ __LDBL_REDIR_DECL (obstack_printf)
 __LDBL_REDIR_DECL (obstack_vprintf)
 #endif
 
-#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
+#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
 __LDBL_REDIR_DECL (__sprintf_chk)
 __LDBL_REDIR_DECL (__vsprintf_chk)
 # if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
diff --git a/libio/bits/stdio.h b/libio/bits/stdio.h
index 4d23f28..49303c6 100644
--- a/libio/bits/stdio.h
+++ b/libio/bits/stdio.h
@@ -21,7 +21,7 @@
 # error "Never include <bits/stdio.h> directly; use <stdio.h> instead."
 #endif
 
-#ifdef __cplusplus
+#ifndef __extern_inline
 # define __STDIO_INLINE inline
 #else
 # define __STDIO_INLINE __extern_inline
@@ -29,12 +29,16 @@
 
 
 #ifdef __USE_EXTERN_INLINES
+/* For -D_FORTIFY_SOURCE{,=2} bits/stdio2.h will define a different
+   inline.  */
+# if !(__USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline)
 /* Write formatted output to stdout from argument list ARG.  */
 __STDIO_INLINE int
 vprintf (__const char *__restrict __fmt, _G_va_list __arg)
 {
   return vfprintf (stdout, __fmt, __arg);
 }
+# endif
 
 /* Read a character from stdin.  */
 __STDIO_INLINE int
@@ -135,7 +139,8 @@ __NTH (ferror_unlocked (FILE *__stream))
 #endif /* Use extern inlines.  */
 
 
-#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__
+#if defined __USE_MISC && defined __GNUC__ && defined __OPTIMIZE__ \
+    && !defined __cplusplus
 /* Perform some simple optimizations.  */
 # define fread_unlocked(ptr, size, n, stream) \
   (__extension__ ((__builtin_constant_p (size) && __builtin_constant_p (n)    \
diff --git a/libio/bits/stdio2.h b/libio/bits/stdio2.h
index 89f5770..841a0ff 100644
--- a/libio/bits/stdio2.h
+++ b/libio/bits/stdio2.h
@@ -27,11 +27,26 @@ extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
 			   __const char *__restrict __format,
 			   _G_va_list __ap) __THROW;
 
-#define sprintf(str, ...) \
+#ifdef __va_arg_pack
+__extern_always_inline int
+__NTH (sprintf (char *__restrict __s, __const char *__restrict __fmt, ...))
+{
+  return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
+				  __bos (__s), __fmt, __va_arg_pack ());
+}
+#elif !defined __cplusplus
+# define sprintf(str, ...) \
   __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \
 			   __VA_ARGS__)
-#define vsprintf(str, fmt, ap) \
-  __builtin___vsprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), fmt, ap)
+#endif
+
+__extern_always_inline int
+__NTH (vsprintf (char *__restrict __s, __const char *__restrict __fmt,
+		 _G_va_list __ap))
+{
+  return __builtin___vsprintf_chk (__s, __USE_FORTIFY_LEVEL - 1,
+				   __bos (__s), __fmt, __ap);
+}
 
 #if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
 
@@ -42,12 +57,27 @@ extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
 			    size_t __slen, __const char *__restrict __format,
 			    _G_va_list __ap) __THROW;
 
-# define snprintf(str, len, ...) \
+# ifdef __va_arg_pack
+__extern_always_inline int
+__NTH (snprintf (char *__restrict __s, size_t __n,
+		 __const char *__restrict __fmt, ...))
+{
+  return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
+				   __bos (__s), __fmt, __va_arg_pack ());
+}
+# elif !defined __cplusplus
+#  define snprintf(str, len, ...) \
   __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
 			    __VA_ARGS__)
-# define vsnprintf(str, len, fmt, ap) \
-  __builtin___vsnprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
-			     fmt, ap)
+# endif
+
+__extern_always_inline int
+__NTH (vsnprintf (char *__restrict __s, size_t __n,
+		  __const char *__restrict __fmt, _G_va_list __ap))
+{
+  return __builtin___vsnprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
+				    __bos (__s), __fmt, __ap);
+}
 
 #endif
 
@@ -61,14 +91,42 @@ extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
 extern int __vprintf_chk (int __flag, __const char *__restrict __format,
 			  _G_va_list __ap);
 
-# define printf(...) \
+# ifdef __va_arg_pack
+__extern_always_inline int
+fprintf (FILE *__restrict __stream, __const char *__restrict __fmt, ...)
+{
+  return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt,
+			__va_arg_pack ());
+}
+
+__extern_always_inline int
+printf (__const char *__restrict __fmt, ...)
+{
+  return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __va_arg_pack ());
+}
+# elif !defined __cplusplus
+#  define printf(...) \
   __printf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
-# define fprintf(stream, ...) \
+#  define fprintf(stream, ...) \
   __fprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
-# define vprintf(format, ap) \
-  __vprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap)
-# define vfprintf(stream, format, ap) \
-  __vfprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap)
+# endif
+
+__extern_always_inline int
+vprintf (__const char *__restrict __fmt, _G_va_list __ap)
+{
+#ifdef __USE_EXTERN_INLINES
+  return __vfprintf_chk (stdout, __USE_FORTIFY_LEVEL - 1, __fmt, __ap);
+#else
+  return __vprintf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, __ap);
+#endif
+}
+
+__extern_always_inline int
+vfprintf (FILE *__restrict __stream,
+	  __const char *__restrict __fmt, _G_va_list __ap)
+{
+  return __vfprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt, __ap);
+}
 
 #endif
 
diff --git a/libio/stdio.h b/libio/stdio.h
index 8e6694a..c1ba9b2 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -838,7 +838,7 @@ extern void funlockfile (FILE *__stream) __THROW;
 #ifdef __USE_EXTERN_INLINES
 # include <bits/stdio.h>
 #endif
-#if __USE_FORTIFY_LEVEL > 0 && !defined __cplusplus
+#if __USE_FORTIFY_LEVEL > 0 && defined __extern_always_inline
 # include <bits/stdio2.h>
 #endif
 #ifdef __LDBL_COMPAT