1*71db0c75SAndroid Build Coastguard Worker //===-- Including fcntl.h in overlay mode ---------------------------------===// 2*71db0c75SAndroid Build Coastguard Worker // 3*71db0c75SAndroid Build Coastguard Worker // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*71db0c75SAndroid Build Coastguard Worker // See https://llvm.org/LICENSE.txt for license information. 5*71db0c75SAndroid Build Coastguard Worker // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*71db0c75SAndroid Build Coastguard Worker // 7*71db0c75SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===// 8*71db0c75SAndroid Build Coastguard Worker 9*71db0c75SAndroid Build Coastguard Worker #ifndef LLVM_LIBC_HDR_FCNTL_OVERLAY_H 10*71db0c75SAndroid Build Coastguard Worker #define LLVM_LIBC_HDR_FCNTL_OVERLAY_H 11*71db0c75SAndroid Build Coastguard Worker 12*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_FULL_BUILD 13*71db0c75SAndroid Build Coastguard Worker #error "This header should only be included in overlay mode" 14*71db0c75SAndroid Build Coastguard Worker #endif 15*71db0c75SAndroid Build Coastguard Worker 16*71db0c75SAndroid Build Coastguard Worker // Overlay mode 17*71db0c75SAndroid Build Coastguard Worker 18*71db0c75SAndroid Build Coastguard Worker // glibc <fcntl.h> header might provide extern inline definitions for few 19*71db0c75SAndroid Build Coastguard Worker // functions, causing external alias errors. They are guarded by 20*71db0c75SAndroid Build Coastguard Worker // `__USE_FORTIFY_LEVEL`, which will be temporarily disabled 21*71db0c75SAndroid Build Coastguard Worker // with `_FORTIFY_SOURCE`. 22*71db0c75SAndroid Build Coastguard Worker 23*71db0c75SAndroid Build Coastguard Worker #ifdef __USE_FORTIFY_LEVEL 24*71db0c75SAndroid Build Coastguard Worker #define LIBC_OLD_USE_FORTIFY_LEVEL __USE_FORTIFY_LEVEL 25*71db0c75SAndroid Build Coastguard Worker #undef __USE_FORTIFY_LEVEL 26*71db0c75SAndroid Build Coastguard Worker #define __USE_FORTIFY_LEVEL 0 27*71db0c75SAndroid Build Coastguard Worker #endif 28*71db0c75SAndroid Build Coastguard Worker 29*71db0c75SAndroid Build Coastguard Worker #include <fcntl.h> 30*71db0c75SAndroid Build Coastguard Worker 31*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_OLD_USE_FORTIFY_LEVEL 32*71db0c75SAndroid Build Coastguard Worker #undef __USE_FORTIFY_LEVEL 33*71db0c75SAndroid Build Coastguard Worker #define __USE_FORTIFY_LEVEL LIBC_OLD_USE_FORTIFY_LEVEL 34*71db0c75SAndroid Build Coastguard Worker #undef LIBC_OLD_USE_FORTIFY_LEVEL 35*71db0c75SAndroid Build Coastguard Worker #endif 36*71db0c75SAndroid Build Coastguard Worker 37*71db0c75SAndroid Build Coastguard Worker #endif // LLVM_LIBC_HDR_FCNTL_OVERLAY_H 38