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Diffstat (limited to 'headers/sys/cdefs.h')
| -rw-r--r-- | headers/sys/cdefs.h | 361 |
1 files changed, 0 insertions, 361 deletions
diff --git a/headers/sys/cdefs.h b/headers/sys/cdefs.h deleted file mode 100644 index dab252d6f..000000000 --- a/headers/sys/cdefs.h +++ /dev/null @@ -1,361 +0,0 @@ -/* $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_ - -/* - * Testing against Clang-specific extensions. - */ -#ifndef __has_extension -#define __has_extension __has_feature -#endif -#ifndef __has_feature -#define __has_feature(x) 0 -#endif -#ifndef __has_include -#define __has_include(x) 0 -#endif -#ifndef __has_builtin -#define __has_builtin(x) 0 -#endif -#ifndef __has_attribute -#define __has_attribute(x) 0 -#endif - -#define __strong_alias(alias, sym) \ - __asm__(".global " #alias "\n" \ - #alias " = " #sym); - -#if defined(__cplusplus) -#define __BEGIN_DECLS extern "C" { -#define __END_DECLS } -#else -#define __BEGIN_DECLS -#define __END_DECLS -#endif - -#if defined(__cplusplus) -#define __BIONIC_CAST(_k,_t,_v) (_k<_t>(_v)) -#else -#define __BIONIC_CAST(_k,_t,_v) ((_t) (_v)) -#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 - -#if defined(__cplusplus) -#define __inline inline /* convert to C++ keyword */ -#endif /* !__cplusplus */ - -#else /* !(__STDC__ || __cplusplus) */ -#define __P(protos) () /* traditional C preprocessor */ -#define __CONCAT(x,y) x/**/y -#define __STRING(x) "x" - -#endif /* !(__STDC__ || __cplusplus) */ - -#define __always_inline __attribute__((__always_inline__)) -#define __attribute_const__ __attribute__((__const__)) -#define __attribute_pure__ __attribute__((__pure__)) -#define __dead __attribute__((__noreturn__)) -#define __noreturn __attribute__((__noreturn__)) -#define __mallocfunc __attribute__((__malloc__)) -#define __packed __attribute__((__packed__)) -#define __unused __attribute__((__unused__)) -#define __used __attribute__((__used__)) - -/* - * _Nonnull is similar to the nonnull attribute in that it will instruct - * compilers to warn the user if it can prove that a null argument is being - * passed. Unlike the nonnull attribute, this annotation indicated that a value - * *should not* be null, not that it *cannot* be null, or even that the behavior - * is undefined. The important distinction is that the optimizer will perform - * surprising optimizations like the following: - * - * void foo(void*) __attribute__(nonnull, 1); - * - * int bar(int* p) { - * foo(p); - * - * // The following null check will be elided because nonnull attribute - * // means that, since we call foo with p, p can be assumed to not be - * // null. Thus this will crash if we are called with a null pointer. - * if (p != NULL) { - * return *p; - * } - * return 0; - * } - * - * int main() { - * return bar(NULL); - * } - * - * http://clang.llvm.org/docs/AttributeReference.html#nonnull - */ -#if !(defined(__clang__) && __has_feature(nullability)) -#define _Nonnull -#define _Nullable -#endif - -#define __printflike(x, y) __attribute__((__format__(printf, x, y))) -#define __scanflike(x, y) __attribute__((__format__(scanf, x, y))) - -/* - * GNU C version 2.96 added 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. - */ -#define __predict_true(exp) __builtin_expect((exp) != 0, 1) -#define __predict_false(exp) __builtin_expect((exp) != 0, 0) - -#define __wur __attribute__((__warn_unused_result__)) - -#ifdef __clang__ -# define __errorattr(msg) __attribute__((unavailable(msg))) -# define __warnattr(msg) __attribute__((deprecated(msg))) -# define __warnattr_real(msg) __attribute__((deprecated(msg))) -# define __enable_if(cond, msg) __attribute__((enable_if(cond, msg))) -#else -# define __errorattr(msg) __attribute__((__error__(msg))) -# define __warnattr(msg) __attribute__((__warning__(msg))) -# define __warnattr_real __warnattr -/* enable_if doesn't exist on other compilers; give an error if it's used. */ - -/* errordecls really don't work as well in clang as they do in GCC. */ -# define __errordecl(name, msg) extern void name(void) __errorattr(msg) -#endif - -#if defined(ANDROID_STRICT) -/* - * For things that are sketchy, but not necessarily an error. FIXME: Enable - * this. - */ -# define __warnattr_strict(msg) /* __warnattr(msg) */ -#else -# define __warnattr_strict(msg) -#endif - -/* - * Some BSD source needs these macros. - * Originally they embedded the rcs versions of each source file - * in the generated binary. We strip strings during build anyway,. - */ -#define __IDSTRING(_prefix,_s) /* nothing */ -#define __COPYRIGHT(_s) /* nothing */ -#define __FBSDID(_s) /* nothing */ -#define __RCSID(_s) /* nothing */ -#define __SCCSID(_s) /* nothing */ - -/* - * With bionic, you always get all C and POSIX API. - * - * If you want BSD and/or GNU extensions, _BSD_SOURCE and/or _GNU_SOURCE are - * expected to be defined by callers before *any* standard header file is - * included. - * - * In our header files we test against __USE_BSD and __USE_GNU. - */ -#if defined(_GNU_SOURCE) -# define __USE_BSD 1 -# define __USE_GNU 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 - -#define __BIONIC__ 1 -#include <android/api-level.h> - -/* glibc compatibility. */ -#if defined(__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. - */ - -#define __BIONIC_FORTIFY_UNKNOWN_SIZE ((size_t) -1) - -#if defined(_FORTIFY_SOURCE) && _FORTIFY_SOURCE > 0 && defined(__OPTIMIZE__) && __OPTIMIZE__ > 0 -# define __BIONIC_FORTIFY 1 -# if _FORTIFY_SOURCE == 2 -# define __bos_level 1 -# else -# define __bos_level 0 -# endif -# define __bosn(s, n) __builtin_object_size((s), (n)) -# define __bos(s) __bosn((s), __bos_level) -# define __bos0(s) __bosn((s), 0) -# if defined(__clang__) -# define __pass_object_size_n(n) __attribute__((pass_object_size(n))) -/* - * FORTIFY'ed functions all have either enable_if or pass_object_size, which - * makes taking their address impossible. Saying (&read)(foo, bar, baz); will - * therefore call the unFORTIFYed version of read. - */ -# define __call_bypassing_fortify(fn) (&fn) -/* - * Because clang-FORTIFY uses overloads, we can't mark functions as `extern - * inline` without making them available externally. - */ -# define __BIONIC_FORTIFY_INLINE static __inline__ __always_inline -/* Error functions don't have bodies, so they can just be static. */ -# define __BIONIC_ERROR_FUNCTION_VISIBILITY static -# else -/* - * Where they can, GCC and clang-style FORTIFY share implementations. - * So, make these nops in GCC. - */ -# define __pass_object_size_n(n) -# define __call_bypassing_fortify(fn) (fn) -/* __BIONIC_FORTIFY_NONSTATIC_INLINE is pointless in GCC's FORTIFY */ -# define __BIONIC_FORTIFY_INLINE extern __inline__ __always_inline __attribute__((gnu_inline)) __attribute__((__artificial__)) -# endif -# define __pass_object_size __pass_object_size_n(__bos_level) -# define __pass_object_size0 __pass_object_size_n(0) -#endif - -/* Used to support clangisms with FORTIFY. This isn't in the FORTIFY section - * because these change how symbols are emitted. The linker must be kept happy. - */ -#ifdef __clang__ -# define __overloadable __attribute__((overloadable)) -// Don't use __RENAME directly because on gcc, this could result in a number of -// unnecessary renames. -# define __RENAME_CLANG(x) __RENAME(x) -#else -# define __overloadable -# define __RENAME_CLANG(x) -#endif - -/* Used to tag non-static symbols that are private and never exposed by the shared library. */ -#define __LIBC_HIDDEN__ __attribute__((visibility("hidden"))) - -/* - * Used to tag symbols that should be hidden for 64-bit, - * but visible to preserve binary compatibility for LP32. - */ -#ifdef __LP64__ -#define __LIBC32_LEGACY_PUBLIC__ __attribute__((visibility("hidden"))) -#else -#define __LIBC32_LEGACY_PUBLIC__ __attribute__((visibility("default"))) -#endif - -/* 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) - -#include <android/versioning.h> - -#if __has_builtin(__builtin_umul_overflow) || __GNUC__ >= 5 -#if defined(__LP64__) -#define __size_mul_overflow(a, b, result) __builtin_umull_overflow(a, b, result) -#else -#define __size_mul_overflow(a, b, result) __builtin_umul_overflow(a, b, result) -#endif -#else -extern __inline__ __always_inline __attribute__((gnu_inline)) -int __size_mul_overflow(__SIZE_TYPE__ a, __SIZE_TYPE__ b, __SIZE_TYPE__ *result) { - *result = a * b; - static const __SIZE_TYPE__ mul_no_overflow = 1UL << (sizeof(__SIZE_TYPE__) * 4); - return (a >= mul_no_overflow || b >= mul_no_overflow) && a > 0 && (__SIZE_TYPE__)-1 / a < b; -} -#endif - -#if defined(__clang__) -/* - * Used when we need to check for overflow when multiplying x and y. This - * should only be used where __size_mul_overflow can not work, because it makes - * assumptions that __size_mul_overflow doesn't (x and y are positive, ...), - * *and* doesn't make use of compiler intrinsics, so it's probably slower than - * __size_mul_overflow. - */ -#define __unsafe_check_mul_overflow(x, y) ((__SIZE_TYPE__)-1 / (x) < (y)) -#endif - -#endif /* !_SYS_CDEFS_H_ */ |