diff options
Diffstat (limited to 'include/features.h')
| -rw-r--r-- | include/features.h | 120 |
1 files changed, 77 insertions, 43 deletions
diff --git a/include/features.h b/include/features.h index ec807d523..18f8e7fdf 100644 --- a/include/features.h +++ b/include/features.h @@ -19,6 +19,23 @@ #ifndef _FEATURES_H #define _FEATURES_H 1 +/* This macro indicates that the installed library is uClibc. Use + * __UCLIBC_MAJOR__ and __UCLIBC_MINOR__ to test for the features in + * specific releases. */ +#define __UCLIBC__ 1 + +/* Load up the current set of uClibc supported features along + * with the current uClibc major and minor version numbers. + * For uClibc release 0.9.26, these numbers would be: + * #define __UCLIBC_MAJOR__ 0 + * #define __UCLIBC_MINOR__ 9 + * #define __UCLIBC_SUBLEVEL__ 26 + */ +#define __need_uClibc_config_h +#include <bits/uClibc_config.h> +#undef __need_uClibc_config_h +#include <bits/uClibc_arch_features.h> + /* For uClibc, always optimize for size -- this should disable * a lot of expensive inlining... */ #define __OPTIMIZE_SIZE__ 1 @@ -42,6 +59,7 @@ _FILE_OFFSET_BITS=N Select default filesystem interface. _BSD_SOURCE ISO C, POSIX, and 4.3BSD things. _SVID_SOURCE ISO C, POSIX, and SVID things. + _ATFILE_SOURCE Additional *at interfaces. _GNU_SOURCE All of the above, plus GNU extensions. _REENTRANT Select additionally reentrant object. _THREAD_SAFE Same as _REENTRANT, often used by other systems. @@ -73,6 +91,7 @@ __USE_BSD Define 4.3BSD things. __USE_SVID Define SVID things. __USE_MISC Define things common to BSD and System V Unix. + __USE_ATFILE Define *at interfaces and AT_* constants for them. __USE_GNU Define GNU extensions. __USE_REENTRANT Define reentrant/thread-safe *_r functions. __USE_FORTIFY_LEVEL Additional security measures used, according to level. @@ -106,6 +125,7 @@ #undef __USE_BSD #undef __USE_SVID #undef __USE_MISC +#undef __USE_ATFILE #undef __USE_GNU #undef __USE_REENTRANT #undef __USE_FORTIFY_LEVEL @@ -162,6 +182,8 @@ # define _BSD_SOURCE 1 # undef _SVID_SOURCE # define _SVID_SOURCE 1 +# undef _ATFILE_SOURCE +# define _ATFILE_SOURCE 1 #endif /* If nothing (other than _GNU_SOURCE) is defined, @@ -258,6 +280,10 @@ # define __USE_SVID 1 #endif +#ifdef _ATFILE_SOURCE +# define __USE_ATFILE 1 +#endif + #ifdef _GNU_SOURCE # define __USE_GNU 1 #endif @@ -266,37 +292,23 @@ # define __USE_REENTRANT 1 #endif -#if _FORTIFY_SOURCE > 0 && __GNUC_PREREQ (4, 1) && defined(__OPTIMIZE__) -# if _FORTIFY_SOURCE == 1 -# define __USE_FORTIFY_LEVEL 1 -# elif _FORTIFY_SOURCE > 1 +#if defined _FORTIFY_SOURCE && _FORTIFY_SOURCE > 0 \ + && __GNUC_PREREQ (4, 1) && defined __OPTIMIZE__ && __OPTIMIZE__ > 0 +# if _FORTIFY_SOURCE > 1 # define __USE_FORTIFY_LEVEL 2 +# else +# define __USE_FORTIFY_LEVEL 1 # endif +#else +# define __USE_FORTIFY_LEVEL 0 #endif /* We do support the IEC 559 math functionality, real and complex. */ #define __STDC_IEC_559__ 1 #define __STDC_IEC_559_COMPLEX__ 1 -/* This macro indicates that the installed library is uClibc. Use - * __UCLIBC_MAJOR__ and __UCLIBC_MINOR__ to test for the features in - * specific releases. */ -#define __UCLIBC__ 1 - -/* Load up the current set of uClibc supported features along - * with the current uClibc major and minor version numbers. - * For uClibc release 0.9.26, these numbers would be: - * #define __UCLIBC_MAJOR__ 0 - * #define __UCLIBC_MINOR__ 9 - * #define __UCLIBC_SUBLEVEL__ 26 - */ -#define __need_uClibc_config_h -#include <bits/uClibc_config.h> -#undef __need_uClibc_config_h -#include <bits/uClibc_arch_features.h> - #ifdef __UCLIBC_HAS_WCHAR__ -/* wchar_t uses ISO 10646-1 (2nd ed., published 2000-09-15) / Unicode 3.0. */ +/* wchar_t uses ISO 10646-1 (2nd ed., published 2000-09-15) / Unicode 3.1. */ # define __STDC_ISO_10646__ 200009L #endif @@ -308,14 +320,32 @@ * are not really intended to check for the presence of a particular library, * but rather are used to define an _interface_. */ #if !defined __FORCE_NOGLIBC && (!defined _LIBC || defined __FORCE_GLIBC) -# define __GNU_LIBRARY__ 6 -# define __GLIBC__ 2 -# define __GLIBC_MINOR__ 2 +/* This macro indicates that the installed library is the GNU C Library. + For historic reasons the value now is 6 and this will stay from now + on. The use of this variable is deprecated. */ +# undef __GNU_LIBRARY__ +# define __GNU_LIBRARY__ 6 + +/* Major and minor version number of the GNU C library package. Use + these macros to test for features in specific releases. */ +/* Don't do it, if you want to keep uClibc happy. */ +# define __GLIBC__ 2 +# define __GLIBC_MINOR__ 2 #endif #define __GLIBC_PREREQ(maj, min) \ ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min)) +#ifndef __UCLIBC__ +/* Decide whether a compiler supports the long long datatypes. */ +#if defined __GNUC__ \ + || (defined __PGI && defined __i386__ ) \ + || (defined __INTEL_COMPILER && (defined __i386__ || defined __ia64__)) \ + || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L) +# define __GLIBC_HAVE_LONG_LONG 1 +#endif +#endif + /* This is here only because every header file already includes this one. */ #ifndef __ASSEMBLER__ # ifndef _SYS_CDEFS_H @@ -344,33 +374,37 @@ /* If uClibc was built without large file support, output an error if * and 64-bit file offsets were requested, output an error. * NOTE: This is probably incorrect on a 64-bit arch... */ -#ifdef __USE_FILE_OFFSET64 -#error It appears you have defined _FILE_OFFSET_BITS=64. Unfortunately, \ +# ifdef __USE_FILE_OFFSET64 +# error It appears you have defined _FILE_OFFSET_BITS=64. Unfortunately, \ uClibc was built without large file support enabled. -#endif +# endif /* If uClibc was built without large file support and _LARGEFILE64_SOURCE * is defined, undefine it. */ -#if defined(_LARGEFILE64_SOURCE) -#undef _LARGEFILE64_SOURCE -#undef __USE_LARGEFILE64 -#endif +# ifdef _LARGEFILE64_SOURCE +# undef _LARGEFILE64_SOURCE +# undef __USE_LARGEFILE64 +# endif /* If we're actually building uClibc with large file support, * define __USE_LARGEFILE64 and __USE_LARGEFILE. */ -#elif defined(_LIBC) -#undef _LARGEFILE_SOURCE -#undef _LARGEFILE64_SOURCE -#undef _FILE_OFFSET_BITS -#undef __USE_LARGEFILE -#undef __USE_LARGEFILE64 -#undef __USE_FILE_OFFSET64 -#define _LARGEFILE_SOURCE 1 -#define _LARGEFILE64_SOURCE 1 -#define __USE_LARGEFILE 1 -#define __USE_LARGEFILE64 1 +#elif defined _LIBC +# undef _LARGEFILE_SOURCE +# undef _LARGEFILE64_SOURCE +# undef _FILE_OFFSET_BITS +# undef __USE_LARGEFILE +# undef __USE_LARGEFILE64 +# undef __USE_FILE_OFFSET64 +# define _LARGEFILE_SOURCE 1 +# define _LARGEFILE64_SOURCE 1 +# define __USE_LARGEFILE 1 +# define __USE_LARGEFILE64 1 #endif +/* uClibc does not support *at interfaces. */ +#undef _ATFILE_SOURCE +#undef __USE_ATFILE + #ifdef _LIBC # include <libc-internal.h> #endif |