//===-- Including stdio.h in overlay mode ---------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef LLVM_LIBC_HDR_STDIO_OVERLAY_H #define LLVM_LIBC_HDR_STDIO_OVERLAY_H #ifdef LIBC_FULL_BUILD #error "This header should only be included in overlay mode" #endif // Overlay mode // glibc <stdio.h> header might provide extern inline definitions for few // functions, causing external alias errors. They are guarded by // `__USE_EXTERN_INLINES` macro. We temporarily disable `__USE_EXTERN_INLINES` // macro by defining `__NO_INLINE__` before including <stdio.h>. // And the same with `__USE_FORTIFY_LEVEL`, which will be temporarily disabled // with `_FORTIFY_SOURCE`. #ifdef _FORTIFY_SOURCE #define LIBC_OLD_FORTIFY_SOURCE … #undef _FORTIFY_SOURCE #endif #ifndef __NO_INLINE__ #define __NO_INLINE__ … #define LIBC_SET_NO_INLINE #endif #include <stdio.h> #ifdef LIBC_OLD_FORTIFY_SOURCE #define _FORTIFY_SOURCE … #undef LIBC_OLD_FORTIFY_SOURCE #endif #ifdef LIBC_SET_NO_INLINE #undef __NO_INLINE__ #undef LIBC_SET_NO_INLINE #endif #endif // LLVM_LIBC_HDR_STDIO_OVERLAY_H