/* * Copyright (C) 2008 The Android Open Source Project * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 * COPYRIGHT OWNER 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. */ #ifndef _SYS_MMAN_H_ #define _SYS_MMAN_H_ #include <sys/cdefs.h> #include <sys/types.h> #include <asm/mman.h> __BEGIN_DECLS #ifndef MAP_ANON #define MAP_ANON MAP_ANONYMOUS #endif #define MAP_FAILED __BIONIC_CAST(reinterpret_cast, void*, -1) #define MREMAP_MAYMOVE 1 #define MREMAP_FIXED 2 /* * See https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md * * mmap64 wasn't really around until L, but we added an inline for it since it * allows a lot more code to compile with _FILE_OFFSET_BITS=64. * * GCC removes the static inline unless it is explicitly used. We can get around * this with __attribute__((used)), but that needlessly adds a definition of * mmap64 to every translation unit that includes this header. Instead, just * preserve the old behavior for GCC and emit a useful diagnostic. */ #if defined(__USE_FILE_OFFSET64) void* mmap(void* __addr, size_t __size, int __prot, int __flags, int __fd, off_t __offset) __RENAME(mmap64); #else void* mmap(void* __addr, size_t __size, int __prot, int __flags, int __fd, off_t __offset); #endif #if __ANDROID_API__ >= __ANDROID_API_L__ void* mmap64(void* __addr, size_t __size, int __prot, int __flags, int __fd, off64_t __offset) __INTRODUCED_IN(21); #endif int munmap(void* __addr, size_t __size); int msync(void* __addr, size_t __size, int __flags); int mprotect(void* __addr, size_t __size, int __prot); void* mremap(void* __old_addr, size_t __old_size, size_t __new_size, int __flags, ...); int mlockall(int __flags) __INTRODUCED_IN(17); int munlockall(void) __INTRODUCED_IN(17); int mlock(const void* __addr, size_t __size); int munlock(const void* __addr, size_t __size); int mincore(void* __addr, size_t __size, unsigned char* __vector); int madvise(void* __addr, size_t __size, int __advice); #if __ANDROID_API__ >= __ANDROID_API_M__ /* * Some third-party code uses the existence of POSIX_MADV_NORMAL to detect the * availability of posix_madvise. This is not correct, since having up-to-date * UAPI headers says nothing about the C library, but for the time being we * don't want to harm adoption of the unified headers. * * https://github.com/android-ndk/ndk/issues/395 */ #define POSIX_MADV_NORMAL MADV_NORMAL #define POSIX_MADV_RANDOM MADV_RANDOM #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL #define POSIX_MADV_WILLNEED MADV_WILLNEED #define POSIX_MADV_DONTNEED MADV_DONTNEED #endif int posix_madvise(void* __addr, size_t __size, int __advice) __INTRODUCED_IN(23); __END_DECLS #include <android/legacy_sys_mman_inlines.h> #endif