libc/include/sys/cdefs.h - fp2-dev/platform/bionic - Gitiles

 /*	$NetBSD: cdefs.h,v 1.58 2004/12/11 05:59:00 christos Exp $	*/

 /*
  * Copyright (c) 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
  *
  * This code is derived from software contributed to Berkeley by
  * Berkeley Software Design, Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  * 3. Neither the name of the University nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
  *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
  */

 #ifndef	_SYS_CDEFS_H_
 #define	_SYS_CDEFS_H_

 /*
  * Macro to test if we're using a GNU C compiler of a specific vintage
  * or later, for e.g. features that appeared in a particular version
  * of GNU C.  Usage:
  *
  *	#if __GNUC_PREREQ__(major, minor)
  *	...cool feature...
  *	#else
  *	...delete feature...
  *	#endif
  */
 #ifdef __GNUC__
 #define	__GNUC_PREREQ__(x, y)						\
 	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||			\
 	 (__GNUC__ > (x)))
 #else
 #define	__GNUC_PREREQ__(x, y)	0
 #endif

 #include <sys/cdefs_elf.h>

 #if defined(__cplusplus)
 #define	__BEGIN_DECLS		extern "C" {
 #define	__END_DECLS		}
 #define	__static_cast(x,y)	static_cast<x>(y)
 #else
 #define	__BEGIN_DECLS
 #define	__END_DECLS
 #define	__static_cast(x,y)	(x)y
 #endif

 /*
  * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
  * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
  * The __CONCAT macro is a bit tricky -- make sure you don't put spaces
  * in between its arguments.  __CONCAT can also concatenate double-quoted
  * strings produced by the __STRING macro, but this only works with ANSI C.
  */

 #define	___STRING(x)	__STRING(x)
 #define	___CONCAT(x,y)	__CONCAT(x,y)

 #if defined(__STDC__) || defined(__cplusplus)
 #define	__P(protos)	protos		/* full-blown ANSI C */
 #define	__CONCAT(x,y)	x ## y
 #define	__STRING(x)	#x

 #define	__const		const		/* define reserved names to standard */
 #define	__signed	signed
 #define	__volatile	volatile
 #if defined(__cplusplus)
 #define	__inline	inline		/* convert to C++ keyword */
 #else
 #if !defined(__GNUC__) && !defined(__lint__)
 #define	__inline			/* delete GCC keyword */
 #endif /* !__GNUC__  && !__lint__ */
 #endif /* !__cplusplus */

 #else	/* !(__STDC__ || __cplusplus) */
 #define	__P(protos)	()		/* traditional C preprocessor */
 #define	__CONCAT(x,y)	x/**/y
 #define	__STRING(x)	"x"

 #ifndef __GNUC__
 #define	__const				/* delete pseudo-ANSI C keywords */
 #define	__inline
 #define	__signed
 #define	__volatile
 #endif	/* !__GNUC__ */

 /*
  * In non-ANSI C environments, new programs will want ANSI-only C keywords
  * deleted from the program and old programs will want them left alone.
  * Programs using the ANSI C keywords const, inline etc. as normal
  * identifiers should define -DNO_ANSI_KEYWORDS.
  */
 #ifndef	NO_ANSI_KEYWORDS
 #define	const		__const		/* convert ANSI C keywords */
 #define	inline		__inline
 #define	signed		__signed
 #define	volatile	__volatile
 #endif /* !NO_ANSI_KEYWORDS */
 #endif	/* !(__STDC__ || __cplusplus) */

 /*
  * Used for internal auditing of the NetBSD source tree.
  */
 #ifdef __AUDIT__
 #define	__aconst	__const
 #else
 #define	__aconst
 #endif

 /*
  * The following macro is used to remove const cast-away warnings
  * from gcc -Wcast-qual; it should be used with caution because it
  * can hide valid errors; in particular most valid uses are in
  * situations where the API requires it, not to cast away string
  * constants. We don't use *intptr_t on purpose here and we are
  * explicit about unsigned long so that we don't have additional
  * dependencies.
  */
 #define __UNCONST(a)	((void *)(unsigned long)(const void *)(a))

 /*
  * GCC2 provides __extension__ to suppress warnings for various GNU C
  * language extensions under "-ansi -pedantic".
  */
 #if !__GNUC_PREREQ__(2, 0)
 #define	__extension__		/* delete __extension__ if non-gcc or gcc1 */
 #endif

 /*
  * GCC1 and some versions of GCC2 declare dead (non-returning) and
  * pure (no side effects) functions using "volatile" and "const";
  * unfortunately, these then cause warnings under "-ansi -pedantic".
  * GCC2 uses a new, peculiar __attribute__((attrs)) style.  All of
  * these work for GNU C++ (modulo a slight glitch in the C++ grammar
  * in the distribution version of 2.5.5).
  */
 #if !__GNUC_PREREQ__(2, 5)
 #define	__attribute__(x)	/* delete __attribute__ if non-gcc or gcc1 */
 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
 #define	__dead		__volatile
 #define	__pure		__const
 #endif
 #endif

 /* Delete pseudo-keywords wherever they are not available or needed. */
 #ifndef __dead
 #define	__dead
 #define	__pure
 #endif

 #if __GNUC_PREREQ__(2, 7)
 #define	__unused	__attribute__((__unused__))
 #else
 #define	__unused	/* delete */
 #endif

 #define __pure2 __attribute__((__const__)) /* Android-added: used by FreeBSD libm */

 #if __GNUC_PREREQ__(3, 1)
 #define	__used		__attribute__((__used__))
 #else
 #define	__used		/* delete */
 #endif

 #if __GNUC_PREREQ__(2, 7)
 #define	__packed	__attribute__((__packed__))
 #define	__aligned(x)	__attribute__((__aligned__(x)))
 #define	__section(x)	__attribute__((__section__(x)))
 #elif defined(__lint__)
 #define	__packed	/* delete */
 #define	__aligned(x)	/* delete */
 #define	__section(x)	/* delete */
 #else
 #define	__packed	error: no __packed for this compiler
 #define	__aligned(x)	error: no __aligned for this compiler
 #define	__section(x)	error: no __section for this compiler
 #endif

 #if !__GNUC_PREREQ__(2, 8)
 #define	__extension__
 #endif

 #if __GNUC_PREREQ__(2, 8)
 #define __statement(x)	__extension__(x)
 #elif defined(lint)
 #define __statement(x)	(0)
 #else
 #define __statement(x)	(x)
 #endif

 #define __nonnull(args) __attribute__((__nonnull__ args))

 #define __printflike(x, y) __attribute__((__format__(printf, x, y))) __nonnull((x))
 #define __scanflike(x, y) __attribute__((__format__(scanf, x, y))) __nonnull((x))

 /*
  * C99 defines the restrict type qualifier keyword, which was made available
  * in GCC 2.92.
  */
 #if defined(__STDC__VERSION__) && __STDC_VERSION__ >= 199901L
 #define	__restrict	restrict
 #else
 #if !__GNUC_PREREQ__(2, 92)
 #define	__restrict	/* delete __restrict when not supported */
 #endif
 #endif

 /*
  * C99 defines __func__ predefined identifier, which was made available
  * in GCC 2.95.
  */
 #if !defined(__STDC_VERSION__) || !(__STDC_VERSION__ >= 199901L)
 #if __GNUC_PREREQ__(2, 6)
 #define	__func__	__PRETTY_FUNCTION__
 #elif __GNUC_PREREQ__(2, 4)
 #define	__func__	__FUNCTION__
 #else
 #define	__func__	""
 #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 */

 #if !defined(_STANDALONE) && !defined(_KERNEL)
 #ifdef __GNUC__
 #define	__RENAME(x)	___RENAME(x)
 #else
 #ifdef __lint__
 #define	__RENAME(x)	__symbolrename(x)
 #else
 #error "No function renaming possible"
 #endif /* __lint__ */
 #endif /* __GNUC__ */
 #else /* _STANDALONE || _KERNEL */
 #define	__RENAME(x)	no renaming in kernel or standalone environment
 #endif

 /*
  * A barrier to stop the optimizer from moving code or assume live
  * register values. This is gcc specific, the version is more or less
  * arbitrary, might work with older compilers.
  */
 #if __GNUC_PREREQ__(2, 95)
 #define	__insn_barrier()	__asm __volatile("":::"memory")
 #else
 #define	__insn_barrier()	/* */
 #endif

 /*
  * GNU C version 2.96 adds explicit branch prediction so that
  * the CPU back-end can hint the processor and also so that
  * code blocks can be reordered such that the predicted path
  * sees a more linear flow, thus improving cache behavior, etc.
  *
  * The following two macros provide us with a way to use this
  * compiler feature.  Use __predict_true() if you expect the expression
  * to evaluate to true, and __predict_false() if you expect the
  * expression to evaluate to false.
  *
  * A few notes about usage:
  *
  *	* Generally, __predict_false() error condition checks (unless
  *	  you have some _strong_ reason to do otherwise, in which case
  *	  document it), and/or __predict_true() `no-error' condition
  *	  checks, assuming you want to optimize for the no-error case.
  *
  *	* Other than that, if you don't know the likelihood of a test
  *	  succeeding from empirical or other `hard' evidence, don't
  *	  make predictions.
  *
  *	* These are meant to be used in places that are run `a lot'.
  *	  It is wasteful to make predictions in code that is run
  *	  seldomly (e.g. at subsystem initialization time) as the
  *	  basic block reordering that this affects can often generate
  *	  larger code.
  */
 #if __GNUC_PREREQ__(2, 96)
 #define	__predict_true(exp)	__builtin_expect((exp) != 0, 1)
 #define	__predict_false(exp)	__builtin_expect((exp) != 0, 0)
 #else
 #define	__predict_true(exp)	(exp)
 #define	__predict_false(exp)	(exp)
 #endif

 #if __GNUC_PREREQ__(2, 96)
 #define __noreturn    __attribute__((__noreturn__))
 #define __mallocfunc  __attribute__((malloc))
 #define __purefunc    __attribute__((pure))
 #else
 #define __noreturn
 #define __mallocfunc
 #define __purefunc
 #endif

 #if __GNUC_PREREQ__(3, 1)
 #define __always_inline __attribute__((__always_inline__))
 #else
 #define __always_inline
 #endif

 #if __GNUC_PREREQ__(3, 4)
 #define __wur __attribute__((__warn_unused_result__))
 #else
 #define __wur
 #endif

 #if __GNUC_PREREQ__(4, 3)
 #define __errordecl(name, msg) extern void name(void) __attribute__((__error__(msg)))
 #define __warnattr(msg) __attribute__((__warning__(msg)))
 #else
 #define __errordecl(name, msg) extern void name(void)
 #define __warnattr(msg)
 #endif

 /*
  * Macros for manipulating "link sets".  Link sets are arrays of pointers
  * to objects, which are gathered up by the linker.
  *
  * Object format-specific code has provided us with the following macros:
  *
  *	__link_set_add_text(set, sym)
  *		Add a reference to the .text symbol `sym' to `set'.
  *
  *	__link_set_add_rodata(set, sym)
  *		Add a reference to the .rodata symbol `sym' to `set'.
  *
  *	__link_set_add_data(set, sym)
  *		Add a reference to the .data symbol `sym' to `set'.
  *
  *	__link_set_add_bss(set, sym)
  *		Add a reference to the .bss symbol `sym' to `set'.
  *
  *	__link_set_decl(set, ptype)
  *		Provide an extern declaration of the set `set', which
  *		contains an array of the pointer type `ptype'.  This
  *		macro must be used by any code which wishes to reference
  *		the elements of a link set.
  *
  *	__link_set_start(set)
  *		This points to the first slot in the link set.
  *
  *	__link_set_end(set)
  *		This points to the (non-existent) slot after the last
  *		entry in the link set.
  *
  *	__link_set_count(set)
  *		Count the number of entries in link set `set'.
  *
  * In addition, we provide the following macros for accessing link sets:
  *
  *	__link_set_foreach(pvar, set)
  *		Iterate over the link set `set'.  Because a link set is
  *		an array of pointers, pvar must be declared as "type **pvar",
  *		and the actual entry accessed as "*pvar".
  *
  *	__link_set_entry(set, idx)
  *		Access the link set entry at index `idx' from set `set'.
  */
 #define	__link_set_foreach(pvar, set)					\
 	for (pvar = __link_set_start(set); pvar < __link_set_end(set); pvar++)

 #define	__link_set_entry(set, idx)	(__link_set_begin(set)[idx])

 /*
  * Some of the FreeBSD sources used in Bionic need this.
  * Originally, this is used to embed the rcs versions of each source file
  * in the generated binary. We certainly don't want this in Bionic.
  */
 #define __FBSDID(s) /* nothing */

 /*-
  * 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.
  *
  * Here's a quick run-down of the versions:
  *  defined(_POSIX_SOURCE)		1003.1-1988
  *  _POSIX_C_SOURCE == 1		1003.1-1990
  *  _POSIX_C_SOURCE == 2		1003.2-1992 C Language Binding Option
  *  _POSIX_C_SOURCE == 199309		1003.1b-1993
  *  _POSIX_C_SOURCE == 199506		1003.1c-1995, 1003.1i-1995,
  *					and the omnibus ISO/IEC 9945-1: 1996
  *  _POSIX_C_SOURCE == 200112		1003.1-2001
  *  _POSIX_C_SOURCE == 200809		1003.1-2008
  *
  * In addition, the X/Open Portability Guide, which is now the Single UNIX
  * Specification, defines a feature-test macro which indicates the version of
  * that specification, and which subsumes _POSIX_C_SOURCE.
  *
  * Our macros begin with two underscores to avoid namespace screwage.
  */

 /* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
 #undef _POSIX_C_SOURCE		/* Probably illegal, but beyond caring now. */
 #define	_POSIX_C_SOURCE		199009
 #endif

 /* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
 #if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
 #undef _POSIX_C_SOURCE
 #define	_POSIX_C_SOURCE		199209
 #endif

 /* Deal with various X/Open Portability Guides and Single UNIX Spec. */
 #ifdef _XOPEN_SOURCE
 #if _XOPEN_SOURCE - 0 >= 700
 #define	__XSI_VISIBLE		700
 #undef _POSIX_C_SOURCE
 #define	_POSIX_C_SOURCE		200809
 #elif _XOPEN_SOURCE - 0 >= 600
 #define	__XSI_VISIBLE		600
 #undef _POSIX_C_SOURCE
 #define	_POSIX_C_SOURCE		200112
 #elif _XOPEN_SOURCE - 0 >= 500
 #define	__XSI_VISIBLE		500
 #undef _POSIX_C_SOURCE
 #define	_POSIX_C_SOURCE		199506
 #endif
 #endif

 /*
  * Deal with all versions of POSIX.  The ordering relative to the tests above is
  * important.
  */
 #if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
 #define	_POSIX_C_SOURCE		198808
 #endif
 #ifdef _POSIX_C_SOURCE
 #if _POSIX_C_SOURCE >= 200809
 #define	__POSIX_VISIBLE		200809
 #define	__ISO_C_VISIBLE		1999
 #elif _POSIX_C_SOURCE >= 200112
 #define	__POSIX_VISIBLE		200112
 #define	__ISO_C_VISIBLE		1999
 #elif _POSIX_C_SOURCE >= 199506
 #define	__POSIX_VISIBLE		199506
 #define	__ISO_C_VISIBLE		1990
 #elif _POSIX_C_SOURCE >= 199309
 #define	__POSIX_VISIBLE		199309
 #define	__ISO_C_VISIBLE		1990
 #elif _POSIX_C_SOURCE >= 199209
 #define	__POSIX_VISIBLE		199209
 #define	__ISO_C_VISIBLE		1990
 #elif _POSIX_C_SOURCE >= 199009
 #define	__POSIX_VISIBLE		199009
 #define	__ISO_C_VISIBLE		1990
 #else
 #define	__POSIX_VISIBLE		198808
 #define	__ISO_C_VISIBLE		0
 #endif /* _POSIX_C_SOURCE */
 #else
 /*-
  * Deal with _ANSI_SOURCE:
  * If it is defined, and no other compilation environment is explicitly
  * requested, then define our internal feature-test macros to zero.  This
  * makes no difference to the preprocessor (undefined symbols in preprocessing
  * expressions are defined to have value zero), but makes it more convenient for
  * a test program to print out the values.
  *
  * If a program mistakenly defines _ANSI_SOURCE and some other macro such as
  * _POSIX_C_SOURCE, we will assume that it wants the broader compilation
  * environment (and in fact we will never get here).
  */
 #if defined(_ANSI_SOURCE)	/* Hide almost everything. */
 #define	__POSIX_VISIBLE		0
 #define	__XSI_VISIBLE		0
 #define	__BSD_VISIBLE		0
 #define	__ISO_C_VISIBLE		1990
 #elif defined(_C99_SOURCE)	/* Localism to specify strict C99 env. */
 #define	__POSIX_VISIBLE		0
 #define	__XSI_VISIBLE		0
 #define	__BSD_VISIBLE		0
 #define	__ISO_C_VISIBLE		1999
 #else				/* Default environment: show everything. */
 #define	__POSIX_VISIBLE		200809
 #define	__XSI_VISIBLE		700
 #define	__BSD_VISIBLE		1
 #define	__ISO_C_VISIBLE		1999
 #endif
 #endif

 /*
  * Default values.
  */
 #ifndef __XPG_VISIBLE
 # define __XPG_VISIBLE          700
 #endif
 #ifndef __POSIX_VISIBLE
 # define __POSIX_VISIBLE        200809
 #endif
 #ifndef __ISO_C_VISIBLE
 # define __ISO_C_VISIBLE        1999
 #endif
 #ifndef __BSD_VISIBLE
 # define __BSD_VISIBLE          1
 #endif

 #define  __BIONIC__   1
 #include <android/api-level.h>

 /* glibc compatibility. */
 #if __LP64__
 #define __WORDSIZE 64
 #else
 #define __WORDSIZE 32
 #endif

 /*
  * When _FORTIFY_SOURCE is defined, automatic bounds checking is
  * added to commonly used libc functions. If a buffer overrun is
  * detected, the program is safely aborted.
  *
  * See
  * http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html for details.
  */
 #if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
 #define __BIONIC_FORTIFY 1
 #if _FORTIFY_SOURCE == 2
 #define __bos(s) __builtin_object_size((s), 1)
 #else
 #define __bos(s) __builtin_object_size((s), 0)
 #endif
 #define __bos0(s) __builtin_object_size((s), 0)

 #define __BIONIC_FORTIFY_INLINE \
     extern __inline__ \
     __attribute__ ((always_inline)) \
     __attribute__ ((gnu_inline))
 #endif
 #define __BIONIC_FORTIFY_UNKNOWN_SIZE ((size_t) -1)

 #endif /* !_SYS_CDEFS_H_ */
	/* $NetBSD: cdefs.h,v 1.58 2004/12/11 05:59:00 christos Exp $ */

	/*
	* Copyright (c) 1991, 1993
	* The Regents of the University of California. All rights reserved.
	*
	* This code is derived from software contributed to Berkeley by
	* Berkeley Software Design, Inc.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.
	* 3. Neither the name of the University nor the names of its contributors
	* may be used to endorse or promote products derived from this software
	* without specific prior written permission.
	*
	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	*
	* @(#)cdefs.h 8.8 (Berkeley) 1/9/95
	*/

	#ifndef _SYS_CDEFS_H_
	#define _SYS_CDEFS_H_

	/*
	* Macro to test if we're using a GNU C compiler of a specific vintage
	* or later, for e.g. features that appeared in a particular version
	* of GNU C. Usage:
	*
	* #if __GNUC_PREREQ__(major, minor)
	* ...cool feature...
	* #else
	* ...delete feature...
	* #endif
	*/
	#ifdef __GNUC__
	#define __GNUC_PREREQ__(x, y) \
	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) \|\| \
	(__GNUC__ > (x)))
	#else
	#define __GNUC_PREREQ__(x, y) 0
	#endif

	#include <sys/cdefs_elf.h>

	#if defined(__cplusplus)
	#define __BEGIN_DECLS extern "C" {
	#define __END_DECLS }
	#define __static_cast(x,y) static_cast<x>(y)
	#else
	#define __BEGIN_DECLS
	#define __END_DECLS
	#define __static_cast(x,y) (x)y
	#endif

	/*
	* The __CONCAT macro is used to concatenate parts of symbol names, e.g.
	* with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo.
	* The __CONCAT macro is a bit tricky -- make sure you don't put spaces
	* in between its arguments. __CONCAT can also concatenate double-quoted
	* strings produced by the __STRING macro, but this only works with ANSI C.
	*/

	#define ___STRING(x) __STRING(x)
	#define ___CONCAT(x,y) __CONCAT(x,y)

	#if defined(__STDC__) \|\| defined(__cplusplus)
	#define __P(protos) protos /* full-blown ANSI C */
	#define __CONCAT(x,y) x ## y
	#define __STRING(x) #x

	#define __const const /* define reserved names to standard */
	#define __signed signed
	#define __volatile volatile
	#if defined(__cplusplus)
	#define __inline inline /* convert to C++ keyword */
	#else
	#if !defined(__GNUC__) && !defined(__lint__)
	#define __inline /* delete GCC keyword */
	#endif /* !__GNUC__ && !__lint__ */
	#endif /* !__cplusplus */

	#else /* !(__STDC__ \|\| __cplusplus) */
	#define __P(protos) () /* traditional C preprocessor */
	#define __CONCAT(x,y) x/**/y
	#define __STRING(x) "x"

	#ifndef __GNUC__
	#define __const /* delete pseudo-ANSI C keywords */
	#define __inline
	#define __signed
	#define __volatile
	#endif /* !__GNUC__ */

	/*
	* In non-ANSI C environments, new programs will want ANSI-only C keywords
	* deleted from the program and old programs will want them left alone.
	* Programs using the ANSI C keywords const, inline etc. as normal
	* identifiers should define -DNO_ANSI_KEYWORDS.
	*/
	#ifndef NO_ANSI_KEYWORDS
	#define const __const /* convert ANSI C keywords */
	#define inline __inline
	#define signed __signed
	#define volatile __volatile
	#endif /* !NO_ANSI_KEYWORDS */
	#endif /* !(__STDC__ \|\| __cplusplus) */

	/*
	* Used for internal auditing of the NetBSD source tree.
	*/
	#ifdef __AUDIT__
	#define __aconst __const
	#else
	#define __aconst
	#endif

	/*
	* The following macro is used to remove const cast-away warnings
	* from gcc -Wcast-qual; it should be used with caution because it
	* can hide valid errors; in particular most valid uses are in
	* situations where the API requires it, not to cast away string
	* constants. We don't use *intptr_t on purpose here and we are
	* explicit about unsigned long so that we don't have additional
	* dependencies.
	*/
	#define __UNCONST(a) ((void )(unsigned long)(const void )(a))

	/*
	* GCC2 provides __extension__ to suppress warnings for various GNU C
	* language extensions under "-ansi -pedantic".
	*/
	#if !__GNUC_PREREQ__(2, 0)
	#define __extension__ /* delete __extension__ if non-gcc or gcc1 */
	#endif

	/*
	* GCC1 and some versions of GCC2 declare dead (non-returning) and
	* pure (no side effects) functions using "volatile" and "const";
	* unfortunately, these then cause warnings under "-ansi -pedantic".
	* GCC2 uses a new, peculiar __attribute__((attrs)) style. All of
	* these work for GNU C++ (modulo a slight glitch in the C++ grammar
	* in the distribution version of 2.5.5).
	*/
	#if !__GNUC_PREREQ__(2, 5)
	#define __attribute__(x) /* delete __attribute__ if non-gcc or gcc1 */
	#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
	#define __dead __volatile
	#define __pure __const
	#endif
	#endif

	/* Delete pseudo-keywords wherever they are not available or needed. */
	#ifndef __dead
	#define __dead
	#define __pure
	#endif

	#if __GNUC_PREREQ__(2, 7)
	#define __unused __attribute__((__unused__))
	#else
	#define __unused /* delete */
	#endif

	#define __pure2 __attribute__((__const__)) /* Android-added: used by FreeBSD libm */

	#if __GNUC_PREREQ__(3, 1)
	#define __used __attribute__((__used__))
	#else
	#define __used /* delete */
	#endif

	#if __GNUC_PREREQ__(2, 7)
	#define __packed __attribute__((__packed__))
	#define __aligned(x) __attribute__((__aligned__(x)))
	#define __section(x) __attribute__((__section__(x)))
	#elif defined(__lint__)
	#define __packed /* delete */
	#define __aligned(x) /* delete */
	#define __section(x) /* delete */
	#else
	#define __packed error: no __packed for this compiler
	#define __aligned(x) error: no __aligned for this compiler
	#define __section(x) error: no __section for this compiler
	#endif

	#if !__GNUC_PREREQ__(2, 8)
	#define __extension__
	#endif

	#if __GNUC_PREREQ__(2, 8)
	#define __statement(x) __extension__(x)
	#elif defined(lint)
	#define __statement(x) (0)
	#else
	#define __statement(x) (x)
	#endif

	#define __nonnull(args) __attribute__((__nonnull__ args))

	#define __printflike(x, y) __attribute__((__format__(printf, x, y))) __nonnull((x))
	#define __scanflike(x, y) __attribute__((__format__(scanf, x, y))) __nonnull((x))

	/*
	* C99 defines the restrict type qualifier keyword, which was made available
	* in GCC 2.92.
	*/
	#if defined(__STDC__VERSION__) && __STDC_VERSION__ >= 199901L
	#define __restrict restrict
	#else
	#if !__GNUC_PREREQ__(2, 92)
	#define __restrict /* delete __restrict when not supported */
	#endif
	#endif

	/*
	* C99 defines __func__ predefined identifier, which was made available
	* in GCC 2.95.
	*/
	#if !defined(__STDC_VERSION__) \|\| !(__STDC_VERSION__ >= 199901L)
	#if __GNUC_PREREQ__(2, 6)
	#define __func__ __PRETTY_FUNCTION__
	#elif __GNUC_PREREQ__(2, 4)
	#define __func__ __FUNCTION__
	#else
	#define __func__ ""
	#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 */

	#if !defined(_STANDALONE) && !defined(_KERNEL)
	#ifdef __GNUC__
	#define __RENAME(x) ___RENAME(x)
	#else
	#ifdef __lint__
	#define __RENAME(x) __symbolrename(x)
	#else
	#error "No function renaming possible"
	#endif /* __lint__ */
	#endif /* __GNUC__ */
	#else /* _STANDALONE \|\| _KERNEL */
	#define __RENAME(x) no renaming in kernel or standalone environment
	#endif

	/*
	* A barrier to stop the optimizer from moving code or assume live
	* register values. This is gcc specific, the version is more or less
	* arbitrary, might work with older compilers.
	*/
	#if __GNUC_PREREQ__(2, 95)
	#define __insn_barrier() __asm __volatile("":::"memory")
	#else
	#define __insn_barrier() /* */
	#endif

	/*
	* GNU C version 2.96 adds explicit branch prediction so that
	* the CPU back-end can hint the processor and also so that
	* code blocks can be reordered such that the predicted path
	* sees a more linear flow, thus improving cache behavior, etc.
	*
	* The following two macros provide us with a way to use this
	* compiler feature. Use __predict_true() if you expect the expression
	* to evaluate to true, and __predict_false() if you expect the
	* expression to evaluate to false.
	*
	* A few notes about usage:
	*
	* * Generally, __predict_false() error condition checks (unless
	* you have some _strong_ reason to do otherwise, in which case
	* document it), and/or __predict_true() `no-error' condition
	* checks, assuming you want to optimize for the no-error case.
	*
	* * Other than that, if you don't know the likelihood of a test
	* succeeding from empirical or other `hard' evidence, don't
	* make predictions.
	*
	* * These are meant to be used in places that are run `a lot'.
	* It is wasteful to make predictions in code that is run
	* seldomly (e.g. at subsystem initialization time) as the
	* basic block reordering that this affects can often generate
	* larger code.
	*/
	#if __GNUC_PREREQ__(2, 96)
	#define __predict_true(exp) __builtin_expect((exp) != 0, 1)
	#define __predict_false(exp) __builtin_expect((exp) != 0, 0)
	#else
	#define __predict_true(exp) (exp)
	#define __predict_false(exp) (exp)
	#endif

	#if __GNUC_PREREQ__(2, 96)
	#define __noreturn __attribute__((__noreturn__))
	#define __mallocfunc __attribute__((malloc))
	#define __purefunc __attribute__((pure))
	#else
	#define __noreturn
	#define __mallocfunc
	#define __purefunc
	#endif

	#if __GNUC_PREREQ__(3, 1)
	#define __always_inline __attribute__((__always_inline__))
	#else
	#define __always_inline
	#endif

	#if __GNUC_PREREQ__(3, 4)
	#define __wur __attribute__((__warn_unused_result__))
	#else
	#define __wur
	#endif

	#if __GNUC_PREREQ__(4, 3)
	#define __errordecl(name, msg) extern void name(void) __attribute__((__error__(msg)))
	#define __warnattr(msg) __attribute__((__warning__(msg)))
	#else
	#define __errordecl(name, msg) extern void name(void)
	#define __warnattr(msg)
	#endif

	/*
	* Macros for manipulating "link sets". Link sets are arrays of pointers
	* to objects, which are gathered up by the linker.
	*
	* Object format-specific code has provided us with the following macros:
	*
	* __link_set_add_text(set, sym)
	* Add a reference to the .text symbol `sym' to `set'.
	*
	* __link_set_add_rodata(set, sym)
	* Add a reference to the .rodata symbol `sym' to `set'.
	*
	* __link_set_add_data(set, sym)
	* Add a reference to the .data symbol `sym' to `set'.
	*
	* __link_set_add_bss(set, sym)
	* Add a reference to the .bss symbol `sym' to `set'.
	*
	* __link_set_decl(set, ptype)
	* Provide an extern declaration of the set `set', which
	* contains an array of the pointer type `ptype'. This
	* macro must be used by any code which wishes to reference
	* the elements of a link set.
	*
	* __link_set_start(set)
	* This points to the first slot in the link set.
	*
	* __link_set_end(set)
	* This points to the (non-existent) slot after the last
	* entry in the link set.
	*
	* __link_set_count(set)
	* Count the number of entries in link set `set'.
	*
	* In addition, we provide the following macros for accessing link sets:
	*
	* __link_set_foreach(pvar, set)
	* Iterate over the link set `set'. Because a link set is
	* an array of pointers, pvar must be declared as "type **pvar",
	* and the actual entry accessed as "*pvar".
	*
	* __link_set_entry(set, idx)
	* Access the link set entry at index `idx' from set `set'.
	*/
	#define __link_set_foreach(pvar, set) \
	for (pvar = __link_set_start(set); pvar < __link_set_end(set); pvar++)

	#define __link_set_entry(set, idx) (__link_set_begin(set)[idx])

	/*
	* Some of the FreeBSD sources used in Bionic need this.
	* Originally, this is used to embed the rcs versions of each source file
	* in the generated binary. We certainly don't want this in Bionic.
	*/
	#define __FBSDID(s) /* nothing */

	/*-
	* 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.
	*
	* Here's a quick run-down of the versions:
	* defined(_POSIX_SOURCE) 1003.1-1988
	* _POSIX_C_SOURCE == 1 1003.1-1990
	* _POSIX_C_SOURCE == 2 1003.2-1992 C Language Binding Option
	* _POSIX_C_SOURCE == 199309 1003.1b-1993
	* _POSIX_C_SOURCE == 199506 1003.1c-1995, 1003.1i-1995,
	* and the omnibus ISO/IEC 9945-1: 1996
	* _POSIX_C_SOURCE == 200112 1003.1-2001
	* _POSIX_C_SOURCE == 200809 1003.1-2008
	*
	* In addition, the X/Open Portability Guide, which is now the Single UNIX
	* Specification, defines a feature-test macro which indicates the version of
	* that specification, and which subsumes _POSIX_C_SOURCE.
	*
	* Our macros begin with two underscores to avoid namespace screwage.
	*/

	/* Deal with IEEE Std. 1003.1-1990, in which _POSIX_C_SOURCE == 1. */
	#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 1
	#undef _POSIX_C_SOURCE /* Probably illegal, but beyond caring now. */
	#define _POSIX_C_SOURCE 199009
	#endif

	/* Deal with IEEE Std. 1003.2-1992, in which _POSIX_C_SOURCE == 2. */
	#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE == 2
	#undef _POSIX_C_SOURCE
	#define _POSIX_C_SOURCE 199209
	#endif

	/* Deal with various X/Open Portability Guides and Single UNIX Spec. */
	#ifdef _XOPEN_SOURCE
	#if _XOPEN_SOURCE - 0 >= 700
	#define __XSI_VISIBLE 700
	#undef _POSIX_C_SOURCE
	#define _POSIX_C_SOURCE 200809
	#elif _XOPEN_SOURCE - 0 >= 600
	#define __XSI_VISIBLE 600
	#undef _POSIX_C_SOURCE
	#define _POSIX_C_SOURCE 200112
	#elif _XOPEN_SOURCE - 0 >= 500
	#define __XSI_VISIBLE 500
	#undef _POSIX_C_SOURCE
	#define _POSIX_C_SOURCE 199506
	#endif
	#endif

	/*
	* Deal with all versions of POSIX. The ordering relative to the tests above is
	* important.
	*/
	#if defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE)
	#define _POSIX_C_SOURCE 198808
	#endif
	#ifdef _POSIX_C_SOURCE
	#if _POSIX_C_SOURCE >= 200809
	#define __POSIX_VISIBLE 200809
	#define __ISO_C_VISIBLE 1999
	#elif _POSIX_C_SOURCE >= 200112
	#define __POSIX_VISIBLE 200112
	#define __ISO_C_VISIBLE 1999
	#elif _POSIX_C_SOURCE >= 199506
	#define __POSIX_VISIBLE 199506
	#define __ISO_C_VISIBLE 1990
	#elif _POSIX_C_SOURCE >= 199309
	#define __POSIX_VISIBLE 199309
	#define __ISO_C_VISIBLE 1990
	#elif _POSIX_C_SOURCE >= 199209
	#define __POSIX_VISIBLE 199209
	#define __ISO_C_VISIBLE 1990
	#elif _POSIX_C_SOURCE >= 199009
	#define __POSIX_VISIBLE 199009
	#define __ISO_C_VISIBLE 1990
	#else
	#define __POSIX_VISIBLE 198808
	#define __ISO_C_VISIBLE 0
	#endif /* _POSIX_C_SOURCE */
	#else
	/*-
	* Deal with _ANSI_SOURCE:
	* If it is defined, and no other compilation environment is explicitly
	* requested, then define our internal feature-test macros to zero. This
	* makes no difference to the preprocessor (undefined symbols in preprocessing
	* expressions are defined to have value zero), but makes it more convenient for
	* a test program to print out the values.
	*
	* If a program mistakenly defines _ANSI_SOURCE and some other macro such as
	* _POSIX_C_SOURCE, we will assume that it wants the broader compilation
	* environment (and in fact we will never get here).
	*/
	#if defined(_ANSI_SOURCE) /* Hide almost everything. */
	#define __POSIX_VISIBLE 0
	#define __XSI_VISIBLE 0
	#define __BSD_VISIBLE 0
	#define __ISO_C_VISIBLE 1990
	#elif defined(_C99_SOURCE) /* Localism to specify strict C99 env. */
	#define __POSIX_VISIBLE 0
	#define __XSI_VISIBLE 0
	#define __BSD_VISIBLE 0
	#define __ISO_C_VISIBLE 1999
	#else /* Default environment: show everything. */
	#define __POSIX_VISIBLE 200809
	#define __XSI_VISIBLE 700
	#define __BSD_VISIBLE 1
	#define __ISO_C_VISIBLE 1999
	#endif
	#endif

	/*
	* Default values.
	*/
	#ifndef __XPG_VISIBLE
	# define __XPG_VISIBLE 700
	#endif
	#ifndef __POSIX_VISIBLE
	# define __POSIX_VISIBLE 200809
	#endif
	#ifndef __ISO_C_VISIBLE
	# define __ISO_C_VISIBLE 1999
	#endif
	#ifndef __BSD_VISIBLE
	# define __BSD_VISIBLE 1
	#endif

	#define __BIONIC__ 1
	#include <android/api-level.h>

	/* glibc compatibility. */
	#if __LP64__
	#define __WORDSIZE 64
	#else
	#define __WORDSIZE 32
	#endif

	/*
	* When _FORTIFY_SOURCE is defined, automatic bounds checking is
	* added to commonly used libc functions. If a buffer overrun is
	* detected, the program is safely aborted.
	*
	* See
	* http://gcc.gnu.org/onlinedocs/gcc/Object-Size-Checking.html for details.
	*/
	#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
	#define __BIONIC_FORTIFY 1
	#if _FORTIFY_SOURCE == 2
	#define __bos(s) __builtin_object_size((s), 1)
	#else
	#define __bos(s) __builtin_object_size((s), 0)
	#endif
	#define __bos0(s) __builtin_object_size((s), 0)

	#define __BIONIC_FORTIFY_INLINE \
	extern __inline__ \
	__attribute__ ((always_inline)) \
	__attribute__ ((gnu_inline))
	#endif
	#define __BIONIC_FORTIFY_UNKNOWN_SIZE ((size_t) -1)

	#endif /* !_SYS_CDEFS_H_ */