1*71db0c75SAndroid Build Coastguard Worker //===-- Including stdio.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_STDIO_OVERLAY_H 10*71db0c75SAndroid Build Coastguard Worker #define LLVM_LIBC_HDR_STDIO_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 <stdio.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_EXTERN_INLINES` macro. We temporarily disable `__USE_EXTERN_INLINES` 21*71db0c75SAndroid Build Coastguard Worker // macro by defining `__NO_INLINE__` before including <stdio.h>. 22*71db0c75SAndroid Build Coastguard Worker // And the same with `__USE_FORTIFY_LEVEL`, which will be temporarily disabled 23*71db0c75SAndroid Build Coastguard Worker // with `_FORTIFY_SOURCE`. 24*71db0c75SAndroid Build Coastguard Worker 25*71db0c75SAndroid Build Coastguard Worker #ifdef _FORTIFY_SOURCE 26*71db0c75SAndroid Build Coastguard Worker #define LIBC_OLD_FORTIFY_SOURCE _FORTIFY_SOURCE 27*71db0c75SAndroid Build Coastguard Worker #undef _FORTIFY_SOURCE 28*71db0c75SAndroid Build Coastguard Worker #endif 29*71db0c75SAndroid Build Coastguard Worker 30*71db0c75SAndroid Build Coastguard Worker #ifdef __USE_EXTERN_INLINES 31*71db0c75SAndroid Build Coastguard Worker #define LIBC_OLD_USE_EXTERN_INLINES 32*71db0c75SAndroid Build Coastguard Worker #undef __USE_EXTERN_INLINES 33*71db0c75SAndroid Build Coastguard Worker #endif 34*71db0c75SAndroid Build Coastguard Worker 35*71db0c75SAndroid Build Coastguard Worker #ifdef __USE_FORTIFY_LEVEL 36*71db0c75SAndroid Build Coastguard Worker #define LIBC_OLD_USE_FORTIFY_LEVEL __USE_FORTIFY_LEVEL 37*71db0c75SAndroid Build Coastguard Worker #undef __USE_FORTIFY_LEVEL 38*71db0c75SAndroid Build Coastguard Worker #define __USE_FORTIFY_LEVEL 0 39*71db0c75SAndroid Build Coastguard Worker #endif 40*71db0c75SAndroid Build Coastguard Worker 41*71db0c75SAndroid Build Coastguard Worker #ifndef __NO_INLINE__ 42*71db0c75SAndroid Build Coastguard Worker #define __NO_INLINE__ 1 43*71db0c75SAndroid Build Coastguard Worker #define LIBC_SET_NO_INLINE 44*71db0c75SAndroid Build Coastguard Worker #endif 45*71db0c75SAndroid Build Coastguard Worker 46*71db0c75SAndroid Build Coastguard Worker #include <stdio.h> 47*71db0c75SAndroid Build Coastguard Worker 48*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_OLD_FORTIFY_SOURCE 49*71db0c75SAndroid Build Coastguard Worker #define _FORTIFY_SOURCE LIBC_OLD_FORTIFY_SOURCE 50*71db0c75SAndroid Build Coastguard Worker #undef LIBC_OLD_FORTIFY_SOURCE 51*71db0c75SAndroid Build Coastguard Worker #endif 52*71db0c75SAndroid Build Coastguard Worker 53*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_SET_NO_INLINE 54*71db0c75SAndroid Build Coastguard Worker #undef __NO_INLINE__ 55*71db0c75SAndroid Build Coastguard Worker #undef LIBC_SET_NO_INLINE 56*71db0c75SAndroid Build Coastguard Worker #endif 57*71db0c75SAndroid Build Coastguard Worker 58*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_OLD_USE_FORTIFY_LEVEL 59*71db0c75SAndroid Build Coastguard Worker #undef __USE_FORTIFY_LEVEL 60*71db0c75SAndroid Build Coastguard Worker #define __USE_FORTIFY_LEVEL LIBC_OLD_USE_FORTIFY_LEVEL 61*71db0c75SAndroid Build Coastguard Worker #undef LIBC_OLD_USE_FORTIFY_LEVEL 62*71db0c75SAndroid Build Coastguard Worker #endif 63*71db0c75SAndroid Build Coastguard Worker 64*71db0c75SAndroid Build Coastguard Worker #ifdef LIBC_OLD_USE_EXTERN_INLINES 65*71db0c75SAndroid Build Coastguard Worker #define __USE_EXTERN_INLINES 66*71db0c75SAndroid Build Coastguard Worker #undef LIBC_OLD_USE_EXTERN_INLINES 67*71db0c75SAndroid Build Coastguard Worker #endif 68*71db0c75SAndroid Build Coastguard Worker 69*71db0c75SAndroid Build Coastguard Worker #endif // LLVM_LIBC_HDR_STDIO_OVERLAY_H 70