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ePenguin-Software-Framework/toolchains/arm/arm-none-eabi/include/sys/features.h

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the monkey dances and laughs and sings and dances
4 years ago
/*
* Written by Joel Sherrill <joel@OARcorp.com>.
*
* COPYRIGHT (c) 1989-2014.
*
* On-Line Applications Research Corporation (OAR).
*
* Permission to use, copy, modify, and distribute this software for any
* purpose without fee is hereby granted, provided that this entire notice
* is included in all copies of any software which is or includes a copy
* or modification of this software.
*
* THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION
* OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS
* SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
*
* $Id$
*/
#ifndef _SYS_FEATURES_H
#define _SYS_FEATURES_H
#ifdef __cplusplus
extern "C" {
#endif
#include <_newlib_version.h>
/* Macro to test version of GCC. Returns 0 for non-GCC or too old GCC. */
#ifndef __GNUC_PREREQ
# if defined __GNUC__ && defined __GNUC_MINOR__
# define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
# else
# define __GNUC_PREREQ(maj, min) 0
# endif
#endif /* __GNUC_PREREQ */
/* Version with trailing underscores for BSD compatibility. */
#define __GNUC_PREREQ__(ma, mi) __GNUC_PREREQ(ma, mi)
/*
* Feature test macros control which symbols are exposed by the system
* headers. Any of these must be defined before including any headers.
*
* __STRICT_ANSI__ (defined by gcc -ansi, -std=c90, -std=c99, or -std=c11)
* ISO C
*
* _POSIX_SOURCE (deprecated by _POSIX_C_SOURCE=1)
* _POSIX_C_SOURCE >= 1
* POSIX.1-1990
*
* _POSIX_C_SOURCE >= 2
* POSIX.2-1992
*
* _POSIX_C_SOURCE >= 199309L
* POSIX.1b-1993 Real-time extensions
*
* _POSIX_C_SOURCE >= 199506L
* POSIX.1c-1995 Threads extensions
*
* _POSIX_C_SOURCE >= 200112L
* POSIX.1-2001 and C99
*
* _POSIX_C_SOURCE >= 200809L
* POSIX.1-2008
*
* _XOPEN_SOURCE
* POSIX.1-1990 and XPG4
*
* _XOPEN_SOURCE_EXTENDED
* SUSv1 (POSIX.2-1992 plus XPG4v2)
*
* _XOPEN_SOURCE >= 500
* SUSv2 (POSIX.1c-1995 plus XSI)
*
* _XOPEN_SOURCE >= 600
* SUSv3 (POSIX.1-2001 plus XSI) and C99
*
* _XOPEN_SOURCE >= 700
* SUSv4 (POSIX.1-2008 plus XSI)
*
* _ISOC99_SOURCE or gcc -std=c99 or g++
* ISO C99
*
* _ISOC11_SOURCE or gcc -std=c11 or g++ -std=c++11
* ISO C11
*
* _ATFILE_SOURCE (implied by _POSIX_C_SOURCE >= 200809L)
* "at" functions
*
* _LARGEFILE_SOURCE (deprecated by _XOPEN_SOURCE >= 500)
* fseeko, ftello
*
* _GNU_SOURCE
* All of the above plus GNU extensions
*
* _BSD_SOURCE (deprecated by _DEFAULT_SOURCE)
* _SVID_SOURCE (deprecated by _DEFAULT_SOURCE)
* _DEFAULT_SOURCE (or none of the above)
* POSIX-1.2008 with BSD and SVr4 extensions
*/
#ifdef _GNU_SOURCE
#undef _ATFILE_SOURCE
#define _ATFILE_SOURCE 1
#undef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE 1
#undef _ISOC99_SOURCE
#define _ISOC99_SOURCE 1
#undef _ISOC11_SOURCE
#define _ISOC11_SOURCE 1
#undef _POSIX_SOURCE
#define _POSIX_SOURCE 1
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#undef _XOPEN_SOURCE
#define _XOPEN_SOURCE 700
#undef _XOPEN_SOURCE_EXTENDED
#define _XOPEN_SOURCE_EXTENDED 1
#endif /* _GNU_SOURCE */
#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
(!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE) && \
!defined(_ISOC99_SOURCE) && !defined(_POSIX_SOURCE) && \
!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE))
#undef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE 1
#endif
#if defined(_DEFAULT_SOURCE)
#undef _POSIX_SOURCE
#define _POSIX_SOURCE 1
#undef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \
((!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE)) || \
(_XOPEN_SOURCE - 0) >= 500)
#define _POSIX_SOURCE 1
#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 700
#define _POSIX_C_SOURCE 200809L
#elif (_XOPEN_SOURCE - 0) >= 600
#define _POSIX_C_SOURCE 200112L
#elif (_XOPEN_SOURCE - 0) >= 500
#define _POSIX_C_SOURCE 199506L
#elif (_XOPEN_SOURCE - 0) < 500
#define _POSIX_C_SOURCE 2
#endif
#endif
#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200809
#undef _ATFILE_SOURCE
#define _ATFILE_SOURCE 1
#endif
/*
* The following private macros are used throughout the headers to control
* which symbols should be exposed. They are for internal use only, as
* indicated by the leading double underscore, and must never be used outside
* of these headers.
*
* __POSIX_VISIBLE
* any version of POSIX.1; enabled by default, or with _POSIX_SOURCE,
* any value of _POSIX_C_SOURCE, or _XOPEN_SOURCE >= 500.
*
* __POSIX_VISIBLE >= 2
* POSIX.2-1992; enabled by default, with _POSIX_C_SOURCE >= 2,
* or _XOPEN_SOURCE >= 500.
*
* __POSIX_VISIBLE >= 199309
* POSIX.1b-1993; enabled by default, with _POSIX_C_SOURCE >= 199309L,
* or _XOPEN_SOURCE >= 500.
*
* __POSIX_VISIBLE >= 199506
* POSIX.1c-1995; enabled by default, with _POSIX_C_SOURCE >= 199506L,
* or _XOPEN_SOURCE >= 500.
*
* __POSIX_VISIBLE >= 200112
* POSIX.1-2001; enabled by default, with _POSIX_C_SOURCE >= 200112L,
* or _XOPEN_SOURCE >= 600.
*
* __POSIX_VISIBLE >= 200809
* POSIX.1-2008; enabled by default, with _POSIX_C_SOURCE >= 200809L,
* or _XOPEN_SOURCE >= 700.
*
* __XSI_VISIBLE
* XPG4 XSI extensions; enabled with any version of _XOPEN_SOURCE.
*
* __XSI_VISIBLE >= 4
* SUSv1 XSI extensions; enabled with both _XOPEN_SOURCE and
* _XOPEN_SOURCE_EXTENDED together.
*
* __XSI_VISIBLE >= 500
* SUSv2 XSI extensions; enabled with _XOPEN_SOURCE >= 500.
*
* __XSI_VISIBLE >= 600
* SUSv3 XSI extensions; enabled with _XOPEN_SOURCE >= 600.
*
* __XSI_VISIBLE >= 700
* SUSv4 XSI extensions; enabled with _XOPEN_SOURCE >= 700.
*
* __ISO_C_VISIBLE >= 1999
* ISO C99; enabled with gcc -std=c99 or newer (on by default since GCC 5),
* any version of C++, or with _ISOC99_SOURCE, _POSIX_C_SOURCE >= 200112L,
* or _XOPEN_SOURCE >= 600.
*
* __ISO_C_VISIBLE >= 2011
* ISO C11; enabled with gcc -std=c11 or newer (on by default since GCC 5),
* g++ -std=c++11 or newer (on by default since GCC 6), or with
* _ISOC11_SOURCE.
*
* __ATFILE_VISIBLE
* "at" functions; enabled by default, with _ATFILE_SOURCE,
* _POSIX_C_SOURCE >= 200809L, or _XOPEN_SOURCE >= 700.
*
* __LARGEFILE_VISIBLE
* fseeko, ftello; enabled with _LARGEFILE_SOURCE or _XOPEN_SOURCE >= 500.
*
* __BSD_VISIBLE
* BSD extensions; enabled by default, or with _BSD_SOURCE.
*
* __SVID_VISIBLE
* SVr4 extensions; enabled by default, or with _SVID_SOURCE.
*
* __MISC_VISIBLE
* Extensions found in both BSD and SVr4 (shorthand for
* (__BSD_VISIBLE || __SVID_VISIBLE)), or newlib-specific
* extensions; enabled by default.
*
* __GNU_VISIBLE
* GNU extensions; enabled with _GNU_SOURCE.
*
* In all cases above, "enabled by default" means either by defining
* _DEFAULT_SOURCE, or by not defining any of the public feature test macros.
* Defining _GNU_SOURCE makes all of the above avaliable.
*/
#ifdef _ATFILE_SOURCE
#define __ATFILE_VISIBLE 1
#else
#define __ATFILE_VISIBLE 0
#endif
#ifdef _DEFAULT_SOURCE
#define __BSD_VISIBLE 1
#else
#define __BSD_VISIBLE 0
#endif
#ifdef _GNU_SOURCE
#define __GNU_VISIBLE 1
#else
#define __GNU_VISIBLE 0
#endif
#if defined(_ISOC11_SOURCE) || \
(__STDC_VERSION__ - 0) >= 201112L || (__cplusplus - 0) >= 201103L
#define __ISO_C_VISIBLE 2011
#elif defined(_ISOC99_SOURCE) || (_POSIX_C_SOURCE - 0) >= 200112L || \
(__STDC_VERSION__ - 0) >= 199901L || defined(__cplusplus)
#define __ISO_C_VISIBLE 1999
#else
#define __ISO_C_VISIBLE 1990
#endif
#if defined(_LARGEFILE_SOURCE) || (_XOPEN_SOURCE - 0) >= 500
#define __LARGEFILE_VISIBLE 1
#else
#define __LARGEFILE_VISIBLE 0
#endif
#ifdef _DEFAULT_SOURCE
#define __MISC_VISIBLE 1
#else
#define __MISC_VISIBLE 0
#endif
#if (_POSIX_C_SOURCE - 0) >= 200809L
#define __POSIX_VISIBLE 200809
#elif (_POSIX_C_SOURCE - 0) >= 200112L
#define __POSIX_VISIBLE 200112
#elif (_POSIX_C_SOURCE - 0) >= 199506L
#define __POSIX_VISIBLE 199506
#elif (_POSIX_C_SOURCE - 0) >= 199309L
#define __POSIX_VISIBLE 199309
#elif (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE)
#define __POSIX_VISIBLE 199209
#elif defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE)
#define __POSIX_VISIBLE 199009
#else
#define __POSIX_VISIBLE 0
#endif
#ifdef _DEFAULT_SOURCE
#define __SVID_VISIBLE 1
#else
#define __SVID_VISIBLE 0
#endif
#if (_XOPEN_SOURCE - 0) >= 700
#define __XSI_VISIBLE 700
#elif (_XOPEN_SOURCE - 0) >= 600
#define __XSI_VISIBLE 600
#elif (_XOPEN_SOURCE - 0) >= 500
#define __XSI_VISIBLE 500
#elif defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED)
#define __XSI_VISIBLE 4
#elif defined(_XOPEN_SOURCE)
#define __XSI_VISIBLE 1
#else
#define __XSI_VISIBLE 0
#endif
/* RTEMS adheres to POSIX -- 1003.1b with some features from annexes. */
#ifdef __rtems__
#define _POSIX_JOB_CONTROL 1
#define _POSIX_SAVED_IDS 1
#define _POSIX_VERSION 199309L
#define _POSIX_ASYNCHRONOUS_IO 1
#define _POSIX_FSYNC 1
#define _POSIX_MAPPED_FILES 1
#define _POSIX_MEMLOCK 1
#define _POSIX_MEMLOCK_RANGE 1
#define _POSIX_MEMORY_PROTECTION 1
#define _POSIX_MESSAGE_PASSING 1
#define _POSIX_MONOTONIC_CLOCK 200112L
#define _POSIX_CLOCK_SELECTION 200112L
#define _POSIX_PRIORITIZED_IO 1
#define _POSIX_PRIORITY_SCHEDULING 1
#define _POSIX_REALTIME_SIGNALS 1
#define _POSIX_SEMAPHORES 1
#define _POSIX_SHARED_MEMORY_OBJECTS 1
#define _POSIX_SYNCHRONIZED_IO 1
#define _POSIX_TIMERS 1
#define _POSIX_BARRIERS 200112L
#define _POSIX_READER_WRITER_LOCKS 200112L
#define _POSIX_SPIN_LOCKS 200112L
/* In P1003.1b but defined by drafts at least as early as P1003.1c/D10 */
#define _POSIX_THREADS 1
#define _POSIX_THREAD_ATTR_STACKADDR 1
#define _POSIX_THREAD_ATTR_STACKSIZE 1
#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
#define _POSIX_THREAD_PRIO_INHERIT 1
#define _POSIX_THREAD_PRIO_PROTECT 1
#define _POSIX_THREAD_PROCESS_SHARED 1
#define _POSIX_THREAD_SAFE_FUNCTIONS 1
/* P1003.4b/D8 defines the constants below this comment. */
#define _POSIX_SPAWN 1
#define _POSIX_TIMEOUTS 1
#define _POSIX_CPUTIME 1
#define _POSIX_THREAD_CPUTIME 1
#define _POSIX_SPORADIC_SERVER 1
#define _POSIX_THREAD_SPORADIC_SERVER 1
#define _POSIX_DEVICE_CONTROL 1
#define _POSIX_DEVCTL_DIRECTION 1
#define _POSIX_INTERRUPT_CONTROL 1
#define _POSIX_ADVISORY_INFO 1
/* UNIX98 added some new pthread mutex attributes */
#define _UNIX98_THREAD_MUTEX_ATTRIBUTES 1
/* POSIX 1003.26-2003 defined device control method */
#define _POSIX_26_VERSION 200312L
#endif
/* XMK loosely adheres to POSIX -- 1003.1 */
#ifdef __XMK__
#define _POSIX_THREADS 1
#define _POSIX_THREAD_PRIORITY_SCHEDULING 1
#endif
#ifdef __svr4__
# define _POSIX_JOB_CONTROL 1
# define _POSIX_SAVED_IDS 1
# define _POSIX_VERSION 199009L
#endif
#ifdef __CYGWIN__
#if __POSIX_VISIBLE >= 200809
#define _POSIX_VERSION 200809L
#define _POSIX2_VERSION 200809L
#elif __POSIX_VISIBLE >= 200112
#define _POSIX_VERSION 200112L
#define _POSIX2_VERSION 200112L
#elif __POSIX_VISIBLE >= 199506
#define _POSIX_VERSION 199506L
#define _POSIX2_VERSION 199506L
#elif __POSIX_VISIBLE >= 199309
#define _POSIX_VERSION 199309L
#define _POSIX2_VERSION 199209L
#elif __POSIX_VISIBLE >= 199209
#define _POSIX_VERSION 199009L
#define _POSIX2_VERSION 199209L
#elif __POSIX_VISIBLE
#define _POSIX_VERSION 199009L
#endif
#if __XSI_VISIBLE >= 4
#define _XOPEN_VERSION __XSI_VISIBLE
#endif
#define _POSIX_ADVISORY_INFO 200809L
/* #define _POSIX_ASYNCHRONOUS_IO -1 */
#define _POSIX_BARRIERS 200809L
#define _POSIX_CHOWN_RESTRICTED 1
#define _POSIX_CLOCK_SELECTION 200809L
#define _POSIX_CPUTIME 200809L
#define _POSIX_FSYNC 200809L
#define _POSIX_IPV6 200809L
#define _POSIX_JOB_CONTROL 1
#define _POSIX_MAPPED_FILES 200809L
/* #define _POSIX_MEMLOCK -1 */
#define _POSIX_MEMLOCK_RANGE 200809L
#define _POSIX_MEMORY_PROTECTION 200809L
#define _POSIX_MESSAGE_PASSING 200809L
#define _POSIX_MONOTONIC_CLOCK 200809L
#define _POSIX_NO_TRUNC 1
/* #define _POSIX_PRIORITIZED_IO -1 */
#define _POSIX_PRIORITY_SCHEDULING 200809L
#define _POSIX_RAW_SOCKETS 200809L
#define _POSIX_READER_WRITER_LOCKS 200809L
#define _POSIX_REALTIME_SIGNALS 200809L
#define _POSIX_REGEXP 1
#define _POSIX_SAVED_IDS 1
#define _POSIX_SEMAPHORES 200809L
#define _POSIX_SHARED_MEMORY_OBJECTS 200809L
#define _POSIX_SHELL 1
#define _POSIX_SPAWN 200809L
#define _POSIX_SPIN_LOCKS 200809L
/* #define _POSIX_SPORADIC_SERVER -1 */
#define _POSIX_SYNCHRONIZED_IO 200809L
#define _POSIX_THREAD_ATTR_STACKADDR 200809L
#define _POSIX_THREAD_ATTR_STACKSIZE 200809L
#define _POSIX_THREAD_CPUTIME 200809L
/* #define _POSIX_THREAD_PRIO_INHERIT -1 */
/* #define _POSIX_THREAD_PRIO_PROTECT -1 */
#define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L
#define _POSIX_THREAD_PROCESS_SHARED 200809L
#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L
/* #define _POSIX_THREAD_SPORADIC_SERVER -1 */
#define _POSIX_THREADS 200809L
/* #define _POSIX_TIMEOUTS -1 */
#define _POSIX_TIMERS 200809L
/* #define _POSIX_TRACE -1 */
/* #define _POSIX_TRACE_EVENT_FILTER -1 */
/* #define _POSIX_TRACE_INHERIT -1 */
/* #define _POSIX_TRACE_LOG -1 */
/* #define _POSIX_TYPED_MEMORY_OBJECTS -1 */
#define _POSIX_VDISABLE '\0'
#if __POSIX_VISIBLE >= 2
#define _POSIX2_C_VERSION _POSIX2_VERSION
#define _POSIX2_C_BIND _POSIX2_VERSION
#define _POSIX2_C_DEV _POSIX2_VERSION
#define _POSIX2_CHAR_TERM _POSIX2_VERSION
/* #define _POSIX2_FORT_DEV -1 */
/* #define _POSIX2_FORT_RUN -1 */
/* #define _POSIX2_LOCALEDEF -1 */
/* #define _POSIX2_PBS -1 */
/* #define _POSIX2_PBS_ACCOUNTING -1 */
/* #define _POSIX2_PBS_CHECKPOINT -1 */
/* #define _POSIX2_PBS_LOCATE -1 */
/* #define _POSIX2_PBS_MESSAGE -1 */
/* #define _POSIX2_PBS_TRACK -1 */
#define _POSIX2_SW_DEV _POSIX2_VERSION
#define _POSIX2_UPE _POSIX2_VERSION
#endif /* __POSIX_VISIBLE >= 2 */
#define _POSIX_V6_ILP32_OFF32 -1
#ifdef __LP64__
#define _POSIX_V6_ILP32_OFFBIG -1
#define _POSIX_V6_LP64_OFF64 1
#define _POSIX_V6_LPBIG_OFFBIG 1
#else
#define _POSIX_V6_ILP32_OFFBIG 1
#define _POSIX_V6_LP64_OFF64 -1
#define _POSIX_V6_LPBIG_OFFBIG -1
#endif
#define _POSIX_V7_ILP32_OFF32 _POSIX_V6_ILP32_OFF32
#define _POSIX_V7_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG
#define _POSIX_V7_LP64_OFF64 _POSIX_V6_LP64_OFF64
#define _POSIX_V7_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG
#define _XBS5_ILP32_OFF32 _POSIX_V6_ILP32_OFF32
#define _XBS5_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG
#define _XBS5_LP64_OFF64 _POSIX_V6_LP64_OFF64
#define _XBS5_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG
#if __XSI_VISIBLE
#define _XOPEN_CRYPT 1
#define _XOPEN_ENH_I18N 1
/* #define _XOPEN_LEGACY -1 */
/* #define _XOPEN_REALTIME -1 */
/* #define _XOPEN_REALTIME_THREADS -1 */
#define _XOPEN_SHM 1
/* #define _XOPEN_STREAMS -1 */
/* #define _XOPEN_UNIX -1 */
#endif /* __XSI_VISIBLE */
/* The value corresponds to UNICODE version 4.0, which is the version
supported by XP. Newlib supports 5.2 (2011) but so far Cygwin needs
the MS conversions for double-byte charsets. */
#define __STDC_ISO_10646__ 200305L
#endif /* __CYGWIN__ */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FEATURES_H */