diff options
Diffstat (limited to 'libc/include/sys/cdefs.h')
| -rw-r--r-- | libc/include/sys/cdefs.h | 59 |
1 files changed, 47 insertions, 12 deletions
diff --git a/libc/include/sys/cdefs.h b/libc/include/sys/cdefs.h index 504e439..04613f4 100644 --- a/libc/include/sys/cdefs.h +++ b/libc/include/sys/cdefs.h @@ -77,7 +77,9 @@ #define __GNUC_PREREQ(x, y) 0 #endif -#include <sys/cdefs_elf.h> +#define __strong_alias(alias, sym) \ + __asm__(".global " #alias "\n" \ + #alias " = " #sym); #if defined(__cplusplus) #define __BEGIN_DECLS extern "C" { @@ -263,13 +265,6 @@ #endif #endif /* !(__STDC_VERSION__ >= 199901L) */ -#if defined(_KERNEL) -#if defined(NO_KERNEL_RCSIDS) -#undef __KERNEL_RCSID -#define __KERNEL_RCSID(_n, _s) /* nothing */ -#endif /* NO_KERNEL_RCSIDS */ -#endif /* _KERNEL */ - /* * A barrier to stop the optimizer from moving code or assume live * register values. This is gcc specific, the version is more or less @@ -340,13 +335,15 @@ #endif #if __GNUC_PREREQ(4, 3) -#define __errordecl(name, msg) extern void name(void) __attribute__((__error__(msg))) +#define __errorattr(msg) __attribute__((__error__(msg))) #define __warnattr(msg) __attribute__((__warning__(msg))) #else -#define __errordecl(name, msg) extern void name(void) +#define __errorattr(msg) #define __warnattr(msg) #endif +#define __errordecl(name, msg) extern void name(void) __errorattr(msg) + /* * Some BSD source needs these macros. * Originally they embedded the rcs versions of each source file @@ -358,9 +355,41 @@ #define __RCSID(_s) /* nothing */ #define __SCCSID(_s) /* nothing */ +/* + * _BSD_SOURCE and _GNU_SOURCE are expected to be defined by callers before + * any standard header file is included. In those header files we test + * against __USE_BSD and __USE_GNU. glibc does this in <features.h> but we + * do it in <sys/cdefs.h> instead because that's where our existing + * _POSIX_C_SOURCE tests were, and we're already confident that <sys/cdefs.h> + * is included everywhere it should be. + * + * The _GNU_SOURCE test needs to come before any _BSD_SOURCE or _POSIX* tests + * because _GNU_SOURCE implies everything else. + */ +#if defined(_GNU_SOURCE) +# define __USE_GNU 1 +# undef _POSIX_SOURCE +# define _POSIX_SOURCE 1 +# undef _POSIX_C_SOURCE +# define _POSIX_C_SOURCE 200809L +# undef _BSD_SOURCE +# define _BSD_SOURCE 1 +#endif + +#if defined(_BSD_SOURCE) +# define __USE_BSD 1 +#endif + +/* + * _FILE_OFFSET_BITS 64 support. + */ +#if !defined(__LP64__) && defined(_FILE_OFFSET_BITS) +#if _FILE_OFFSET_BITS == 64 +#define __USE_FILE_OFFSET64 1 +#endif +#endif + /*- - * The following definitions are an extension of the behavior originally - * implemented in <sys/_posix.h>, but with a different level of granularity. * POSIX.1 requires that the macros we test be defined before any standard * header file is included. * @@ -538,4 +567,10 @@ /* Used to rename functions so that the compiler emits a call to 'x' rather than the function this was applied to. */ #define __RENAME(x) __asm__(#x) +#if __ANDROID_API__ >= 21 +#define _BIONIC_NOT_BEFORE_21(x) x +#else +#define _BIONIC_NOT_BEFORE_21(x) +#endif /* __ANDROID_API__ >= 21 */ + #endif /* !_SYS_CDEFS_H_ */ |