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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /misc/sys/cdefs.h
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'misc/sys/cdefs.h')
-rw-r--r--misc/sys/cdefs.h51
1 files changed, 50 insertions, 1 deletions
diff --git a/misc/sys/cdefs.h b/misc/sys/cdefs.h
index 475cf62961..ce5e83d571 100644
--- a/misc/sys/cdefs.h
+++ b/misc/sys/cdefs.h
@@ -1,4 +1,5 @@
-/* Copyright (C) 1992-2001, 2002, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1992-2001, 2002, 2004, 2005, 2006
+ 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
@@ -130,6 +131,7 @@
/* 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. */
@@ -255,6 +257,28 @@
# 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
@@ -286,4 +310,29 @@
# endif
#endif
+#include <bits/wordsize.h>
+
+#if defined __LONG_DOUBLE_MATH_OPTIONAL && defined __NO_LONG_DOUBLE_MATH
+# define __LDBL_COMPAT 1
+# ifdef __REDIRECT
+# define __LDBL_REDIR1(name, proto, alias) __REDIRECT (name, proto, alias)
+# define __LDBL_REDIR(name, proto) \
+ __LDBL_REDIR1 (name, proto, __nldbl_##name)
+# define __LDBL_REDIR1_NTH(name, proto, alias) __REDIRECT_NTH (name, proto, alias)
+# define __LDBL_REDIR_NTH(name, proto) \
+ __LDBL_REDIR1_NTH (name, proto, __nldbl_##name)
+# define __LDBL_REDIR1_DECL(name, alias) \
+ extern __typeof (name) name __asm (__ASMNAME (#alias));
+# define __LDBL_REDIR_DECL(name) \
+ extern __typeof (name) name __asm (__ASMNAME ("__nldbl_" #name));
+# endif
+#endif
+#if !defined __LDBL_COMPAT || !defined __REDIRECT
+# define __LDBL_REDIR1(name, proto, alias) name proto
+# define __LDBL_REDIR(name, proto) name proto
+# define __LDBL_REDIR1_NTH(name, proto, alias) name proto __THROW
+# define __LDBL_REDIR_NTH(name, proto) name proto __THROW
+# define __LDBL_REDIR_DECL(name)
+#endif
+
#endif /* sys/cdefs.h */