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_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 24 namespace __interception { 25 bool InterceptFunction(const char *name, uptr *ptr_to_real, uptr func, 26 uptr wrapper); 27 bool 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 // dlvsym is a GNU extension supported by some other platforms. 39 #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD 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_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD 50 51 #endif // INTERCEPTION_LINUX_H 52 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD || 53 // SANITIZER_SOLARIS 54