1//===-- interception_linux.h ------------------------------------*- C++ -*-===// 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// This file is a part of AddressSanitizer, an address sanity checker. 10// 11// Linux-specific interception methods. 12//===----------------------------------------------------------------------===// 13 14#if SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD || \ 15 SANITIZER_OPENBSD || SANITIZER_SOLARIS 16 17#if !defined(INCLUDED_FROM_INTERCEPTION_LIB) 18# error "interception_linux.h should be included from interception library only" 19#endif 20 21#ifndef INTERCEPTION_LINUX_H 22#define INTERCEPTION_LINUX_H 23 24namespace __interception { 25bool InterceptFunction(const char *name, uptr *ptr_to_real, uptr func, 26 uptr wrapper); 27bool InterceptFunction(const char *name, const char *ver, uptr *ptr_to_real, 28 uptr func, uptr wrapper); 29} // namespace __interception 30 31#define INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) \ 32 ::__interception::InterceptFunction( \ 33 #func, \ 34 (::__interception::uptr *) & REAL(func), \ 35 (::__interception::uptr) & (func), \ 36 (::__interception::uptr) & WRAP(func)) 37 38// Android, Solaris and OpenBSD do not have dlvsym 39#if !SANITIZER_ANDROID && !SANITIZER_SOLARIS && !SANITIZER_OPENBSD 40#define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \ 41 ::__interception::InterceptFunction( \ 42 #func, symver, \ 43 (::__interception::uptr *) & REAL(func), \ 44 (::__interception::uptr) & (func), \ 45 (::__interception::uptr) & WRAP(func)) 46#else 47#define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \ 48 INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) 49#endif // !SANITIZER_ANDROID && !SANITIZER_SOLARIS 50 51#endif // INTERCEPTION_LINUX_H 52#endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD || 53 // SANITIZER_OPENBSD || SANITIZER_SOLARIS 54