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| 1 | //===-- Macros defined in sys/mman.h header file --------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef LLVM_LIBC_MACROS_SYS_MMAN_MACROS_H |
| 10 | #define LLVM_LIBC_MACROS_SYS_MMAN_MACROS_H |
| 11 | |
| 12 | // Use definitions from <linux/mman.h> to dispatch arch-specific flag values. |
| 13 | // For example, MCL_CURRENT/MCL_FUTURE/MCL_ONFAULT are different on different |
| 14 | // architectures. |
| 15 | #if __has_include(<linux/mman.h>) |
| 16 | #include <linux/mman.h> |
| 17 | #else |
| 18 | #error "cannot use <sys/mman.h> without proper system headers." |
| 19 | #endif |
| 20 | |
| 21 | // Some posix standard flags may not be defined in system headers. |
| 22 | // Posix mmap flags. |
| 23 | #ifndef MAP_FAILED |
| 24 | #define MAP_FAILED ((void *)-1) |
| 25 | #endif |
| 26 | |
| 27 | // Posix memory advise flags. (posix_madvise) |
| 28 | #ifndef POSIX_MADV_NORMAL |
| 29 | #define POSIX_MADV_NORMAL MADV_NORMAL |
| 30 | #endif |
| 31 | |
| 32 | #ifndef POSIX_MADV_SEQUENTIAL |
| 33 | #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL |
| 34 | #endif |
| 35 | |
| 36 | #ifndef POSIX_MADV_RANDOM |
| 37 | #define POSIX_MADV_RANDOM MADV_RANDOM |
| 38 | #endif |
| 39 | |
| 40 | #ifndef POSIX_MADV_WILLNEED |
| 41 | #define POSIX_MADV_WILLNEED MADV_WILLNEED |
| 42 | #endif |
| 43 | |
| 44 | #ifndef POSIX_MADV_DONTNEED |
| 45 | #define POSIX_MADV_DONTNEED MADV_DONTNEED |
| 46 | #endif |
| 47 | |
| 48 | #endif // LLVM_LIBC_MACROS_SYS_MMAN_MACROS_H |
| 49 |
Warning: This file is not a C or C++ file. It does not have highlighting.