mirror of
https://github.com/isar/libmdbx.git
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260 lines
7.1 KiB
C
260 lines
7.1 KiB
C
/*
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Copyright (c) 2015,2016 Leonid Yuriev <leo@yuriev.ru>.
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Copyright (c) 2015,2016 Peter-Service R&D LLC.
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This file is part of ReOpenLDAP.
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ReOpenLDAP is free software; you can redistribute it and/or modify it under
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the terms of the GNU Affero General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ReOpenLDAP is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* LY: Please do not ask us for Windows support, just never!
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* But you can make a fork for Windows, or become maintainer for FreeBSD... */
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#ifndef __gnu_linux__
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# error "ReOpenLDAP branch supports only GNU Linux"
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#endif
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#ifndef _REOPEN_H
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#define _REOPEN_H
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#ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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#endif
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#ifndef __has_attribute
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# define __has_attribute(x) (0)
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#endif
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#if !defined(GCC_VERSION) && defined(__GNUC__)
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# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
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#endif /* GCC_VERSION */
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#ifndef ALLOW_UNUSED
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# ifdef ATTRIBUTE_UNUSED
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# define ALLOW_UNUSED ATTRIBUTE_UNUSED
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# elif defined(GCC_VERSION) && (GCC_VERSION >= 3004)
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# define ALLOW_UNUSED __attribute__((__unused__))
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# elif __has_attribute(__unused__)
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# define ALLOW_UNUSED __attribute__((__unused__))
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# elif __has_attribute(unused)
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# define ALLOW_UNUSED __attribute__((unused))
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# else
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# define ALLOW_UNUSED
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# endif
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#endif /* ALLOW_UNUSED */
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#if !defined(__thread) && (defined(_MSC_VER) || defined(__DMC__))
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# define __thread __declspec(thread)
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#endif
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#ifndef __forceinline
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# if defined(__GNUC__) || defined(__clang__)
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# define __forceinline __inline __attribute__((always_inline))
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# elif ! defined(_MSC_VER)
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# define __forceinline
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# endif
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#endif /* __forceinline */
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#ifndef __noinline
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# if defined(__GNUC__) || defined(__clang__)
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# define __noinline __attribute__((noinline))
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# elif defined(_MSC_VER)
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# define __noinline __declspec(noinline)
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# endif
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#endif /* __noinline */
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#ifndef __must_check_result
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# if defined(__GNUC__) || defined(__clang__)
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# define __must_check_result __attribute__((warn_unused_result))
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# else
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# define __must_check_result
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# endif
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#endif /* __must_check_result */
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#ifndef __hot
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# if defined(NDEBUG) && (defined(__GNUC__) && !defined(__clang__))
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# define __hot __attribute__((hot, optimize("O3")))
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# else
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# define __hot
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# endif
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#endif /* __hot */
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#ifndef __cold
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# if defined(NDEBUG) && (defined(__GNUC__) && !defined(__clang__))
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# define __cold __attribute__((cold, optimize("Os")))
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# elif defined(__GNUC__)
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/* cland case, just put infrequently used functions in separate section */
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# define __cold __attribute__((section("text.cold")))
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# else
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# define __cold
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# endif
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#endif /* __cold */
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#ifndef __flatten
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# if defined(NDEBUG) && (defined(__GNUC__) || defined(__clang__))
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# define __flatten __attribute__((flatten))
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# else
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# define __flatten
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# endif
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#endif /* __flatten */
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#ifndef __aligned
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# if defined(__GNUC__) || defined(__clang__)
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# define __aligned(N) __attribute__((aligned(N)))
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# elif defined(__MSC_VER)
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# define __aligned(N) __declspec(align(N))
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# else
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# define __aligned(N)
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# endif
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#endif /* __align */
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#ifndef __noreturn
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# if defined(__GNUC__) || defined(__clang__)
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# define __noreturn __attribute__((noreturn))
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# elif defined(__MSC_VER)
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# define __noreturn __declspec(noreturn)
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# else
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# define __noreturn
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# endif
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#endif
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#ifndef __nothrow
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# if defined(__GNUC__) || defined(__clang__)
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# define __nothrow __attribute__((nothrow))
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# elif defined(__MSC_VER)
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# define __nothrow __declspec(nothrow)
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# else
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# define __nothrow
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# endif
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#endif
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#ifndef CACHELINE_SIZE
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# if defined(__ia64__) || defined(__ia64) || defined(_M_IA64)
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# define CACHELINE_SIZE 128
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# else
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# define CACHELINE_SIZE 64
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# endif
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#endif
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#ifndef __cache_aligned
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# define __cache_aligned __aligned(CACHELINE_SIZE)
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#endif
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#ifndef likely
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# if defined(__GNUC__) || defined(__clang__)
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# ifdef __cplusplus
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/* LY: workaround for "pretty" boost */
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static __inline __attribute__((always_inline))
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bool likely(bool cond) { return __builtin_expect(cond, 1); }
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# else
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# define likely(cond) __builtin_expect(!!(cond), 1)
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# endif
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# else
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# define likely(x) (x)
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# endif
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#endif /* likely */
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#ifndef unlikely
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# if defined(__GNUC__) || defined(__clang__)
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# ifdef __cplusplus
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/* LY: workaround for "pretty" boost */
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static __inline __attribute__((always_inline))
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bool unlikely(bool cond) { return __builtin_expect(cond, 0); }
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# else
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# define unlikely(cond) __builtin_expect(!!(cond), 0)
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# endif
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# else
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# define unlikely(x) (x)
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# endif
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#endif /* unlikely */
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#ifndef __extern_C
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# ifdef __cplusplus
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# define __extern_C extern "C"
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# else
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# define __extern_C
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# endif
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#endif
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#ifndef __noop
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# define __noop() do {} while (0)
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#endif
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/* -------------------------------------------------------------------------- */
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#include <assert.h>
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/* Prototype should match libc runtime. ISO POSIX (2003) & LSB 3.1 */
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__extern_C void __assert_fail(
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const char* assertion,
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const char* file,
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unsigned line,
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const char* function) __nothrow __noreturn;
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/* -------------------------------------------------------------------------- */
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#if defined(HAVE_VALGRIND) || defined(USE_VALGRIND)
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/* Get debugging help from Valgrind */
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# include <valgrind/memcheck.h>
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# ifndef VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE
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/* LY: available since Valgrind 3.10 */
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# define VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
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# define VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
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# endif
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#else
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# define VALGRIND_CREATE_MEMPOOL(h,r,z)
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# define VALGRIND_DESTROY_MEMPOOL(h)
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# define VALGRIND_MEMPOOL_TRIM(h,a,s)
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# define VALGRIND_MEMPOOL_ALLOC(h,a,s)
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# define VALGRIND_MEMPOOL_FREE(h,a)
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# define VALGRIND_MEMPOOL_CHANGE(h,a,b,s)
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# define VALGRIND_MAKE_MEM_NOACCESS(a,s)
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# define VALGRIND_MAKE_MEM_DEFINED(a,s)
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# define VALGRIND_MAKE_MEM_UNDEFINED(a,s)
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# define VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
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# define VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(a,s)
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# define VALGRIND_CHECK_MEM_IS_ADDRESSABLE(a,s) (0)
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# define VALGRIND_CHECK_MEM_IS_DEFINED(a,s) (0)
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#endif /* ! USE_VALGRIND */
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#if defined(__has_feature)
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# if __has_feature(thread_sanitizer)
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# define __SANITIZE_THREAD__ 1
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# endif
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#endif
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#ifdef __SANITIZE_THREAD__
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# define ATTRIBUTE_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread, noinline))
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#else
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# define ATTRIBUTE_NO_SANITIZE_THREAD
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#endif
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#if defined(__has_feature)
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# if __has_feature(address_sanitizer)
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# define __SANITIZE_ADDRESS__ 1
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# endif
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#endif
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#ifdef __SANITIZE_ADDRESS__
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# include <sanitizer/asan_interface.h>
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# define ATTRIBUTE_NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address, noinline))
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#else
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# define ASAN_POISON_MEMORY_REGION(addr, size) \
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((void)(addr), (void)(size))
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# define ASAN_UNPOISON_MEMORY_REGION(addr, size) \
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((void)(addr), (void)(size))
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# define ATTRIBUTE_NO_SANITIZE_ADDRESS
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#endif /* __SANITIZE_ADDRESS__ */
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#endif /* _REOPEN_H */
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