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-rw-r--r--include/sys/cdefs.h78
1 files changed, 67 insertions, 11 deletions
diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index f370145f1..0a6d345bc 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1992-2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2001, 2002, 2004, 2005 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
@@ -39,24 +39,28 @@
/* GCC can always grok prototypes. For C++ programs we add throw()
to help it optimize the function calls. But this works only with
- gcc 2.8.x and egcs. */
-# if defined __cplusplus && __GNUC_PREREQ (2,8)
-# define __THROW throw ()
+ gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions
+ as non-throwing using a function attribute since programs can use
+ the -fexceptions options for C code as well. */
+# if 0 //!defined __cplusplus && __GNUC_PREREQ (3, 3)
+# define __THROW __attribute__ ((__nothrow__))
+# define __NTH(fct) __attribute__ ((__nothrow__)) fct
# else
-# define __THROW
+# if defined __cplusplus && __GNUC_PREREQ (2,8)
+# define __THROW throw ()
+# define __NTH(fct) fct throw ()
+# else
+# define __THROW
+# define __NTH(fct) fct
+# endif
# endif
-# define __P(args) args __THROW
-/* This macro will be used for functions which might take C++ callback
- functions. */
-# define __PMT(args) args
#else /* Not GCC. */
# define __inline /* No inline functions. */
# define __THROW
-# define __P(args) args
-# define __PMT(args) args
+# define __NTH(fct) fct
# define __const const
# define __signed signed
@@ -64,6 +68,11 @@
#endif /* GCC. */
+/* These two macros are not used in glibc anymore. They are kept here
+ only because some other projects expect the macros to be defined. */
+#define __P(args) args
+#define __PMT(args) args
+
/* For these things, GCC behaves the ANSI way normally,
and the non-ANSI way under -traditional. */
@@ -118,6 +127,12 @@
#endif
+/* Fortify support. */
+#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
+#define __bos0(ptr) __builtin_object_size (ptr, 0)
+#define __warndecl(name, msg) extern void name (void)
+
+
/* Support for flexible arrays. */
#if __GNUC_PREREQ (2,97)
/* GCC 2.97 supports C99 flexible array members. */
@@ -150,6 +165,17 @@
# define __REDIRECT(name, proto, alias) name proto __asm__ (__ASMNAME (#alias))
# define __ASMNAME(cname) __C_SYMBOL_PREFIX__ cname
+/*
+# ifdef __cplusplus
+# define __REDIRECT_NTH(name, proto, alias) \
+ name proto __THROW __asm__ (__ASMNAME (#alias))
+# else
+# define __REDIRECT_NTH(name, proto, alias) \
+ name proto __asm__ (__ASMNAME (#alias)) __THROW
+# endif
+# define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
+# define __ASMNAME2(prefix, cname) __STRING (prefix) cname
+*/
/*
#elif __SOME_OTHER_COMPILER__
@@ -225,6 +251,36 @@
# define __attribute_format_strfmon__(a,b) /* Ignore */
#endif
+/* The nonull function attribute allows to mark pointer parameters which
+ must not be NULL. */
+#if __GNUC_PREREQ (3,3)
+# define __nonnull(params) __attribute__ ((__nonnull__ params))
+#else
+# define __nonnull(params)
+#endif
+
+/* If fortification mode, we warn about unused results of certain
+ function calls which can lead to problems. */
+#if __GNUC_PREREQ (3,4)
+# define __attribute_warn_unused_result__ \
+ __attribute__ ((__warn_unused_result__))
+# if __USE_FORTIFY_LEVEL > 0
+# define __wur __attribute_warn_unused_result__
+# endif
+#else
+# define __attribute_warn_unused_result__ /* empty */
+#endif
+#ifndef __wur
+# define __wur /* Ignore */
+#endif
+
+/* Forces a function to be always inlined. */
+#if __GNUC_PREREQ (3,2)
+# define __always_inline __inline __attribute__ ((__always_inline__))
+#else
+# define __always_inline __inline
+#endif
+
/* It is possible to compile containing GCC extensions even if GCC is
run in pedantic mode if the uses are carefully marked using the
`__extension__' keyword. But this is not generally available before