diff options
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 90 |
1 files changed, 5 insertions, 85 deletions
diff --git a/include/features.h b/include/features.h index b94815c85..27e827172 100644 --- a/include/features.h +++ b/include/features.h @@ -299,9 +299,9 @@ /* This is here only because every header file already includes this one. */ #ifndef __ASSEMBLER__ -#ifndef _SYS_CDEFS_H -# include <sys/cdefs.h> -#endif +# ifndef _SYS_CDEFS_H +# include <sys/cdefs.h> +# endif /* If we don't have __REDIRECT, prototypes will be missing if __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */ @@ -352,89 +352,9 @@ uClibc was built without large file support enabled. #define __USE_LARGEFILE64 1 #endif -/* Some nice features only work properly with ELF */ -#if defined _LIBC -#if defined __HAVE_ELF__ -/* Define ALIASNAME as a weak alias for NAME. */ -# define weak_alias(name, aliasname) _weak_alias (name, aliasname) -# define _weak_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))); -/* Define ALIASNAME as a strong alias for NAME. */ -# define strong_alias(name, aliasname) _strong_alias(name, aliasname) -# define _strong_alias(name, aliasname) \ - extern __typeof (name) aliasname __attribute__ ((alias (#name))); -/* This comes between the return type and function name in - * a function definition to make that definition weak. */ -# define weak_function __attribute__ ((weak)) -# define weak_const_function __attribute__ ((weak, __const__)) -/* Tacking on "\n\t#" to the section name makes gcc put it's bogus - * section attributes on what looks like a comment to the assembler. */ -# if defined(__cris__) -# define link_warning(symbol, msg) -# else -# define link_warning(symbol, msg) \ - asm (".section " ".gnu.warning." #symbol "\n\t.previous"); \ - static const char __evoke_link_warning_##symbol[] \ - __attribute__ ((unused, section (".gnu.warning." #symbol "\n\t#"))) = msg; -#endif -#else /* !defined __HAVE_ELF__ */ -# define strong_alias(name, aliasname) _strong_alias (name, aliasname) -# define weak_alias(name, aliasname) _strong_alias (name, aliasname) -# define _strong_alias(name, aliasname) \ - __asm__(".global " __C_SYMBOL_PREFIX__ #aliasname "\n" \ - ".set " __C_SYMBOL_PREFIX__ #aliasname "," __C_SYMBOL_PREFIX__ #name); -# define link_warning(symbol, msg) \ - asm (".stabs \"" msg "\",30,0,0,0\n\t" \ - ".stabs \"" #symbol "\",1,0,0,0\n"); -#endif - -#ifndef weak_function -/* If we do not have the __attribute__ ((weak)) syntax, there is no way we - can define functions as weak symbols. The compiler will emit a `.globl' - directive for the function symbol, and a `.weak' directive in addition - will produce an error from the assembler. */ -# define weak_function /* empty */ -# define weak_const_function /* empty */ -#endif - -/* On some platforms we can make internal function calls (i.e., calls of - functions not exported) a bit faster by using a different calling - convention. */ -#ifndef internal_function -# define internal_function /* empty */ -#endif - -/* Prepare for the case that `__builtin_expect' is not available. */ -#if __GNUC__ == 2 && __GNUC_MINOR__ < 96 -#define __builtin_expect(x, expected_value) (x) -#endif -#ifndef likely -# define likely(x) __builtin_expect((!!(x)),1) +#ifdef _LIBC +# include <libc-internal.h> #endif -#ifndef unlikely -# define unlikely(x) __builtin_expect((!!(x)),0) -#endif -#ifndef __LINUX_COMPILER_H -#define __LINUX_COMPILER_H -#endif -#ifndef __cast__ -#define __cast__(_to) -#endif - -/* Arrange to hide uClibc internals */ -#if __GNUC_PREREQ (3, 3) -# define attribute_hidden __attribute__ ((visibility ("hidden"))) -#else -# define attribute_hidden -#endif - -/* Pull in things like __attribute_used__ */ -#include <sys/cdefs.h> - -/* --- this is added to integrate linuxthreads */ -#define __USE_UNIX98 1 - -#endif /* _LIBC only stuff */ #ifndef __linux__ # define __linux__ 1 |