1 //===-- interception_linux.h ------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of AddressSanitizer, an address sanity checker.
12 // Linux-specific interception methods.
13 //===----------------------------------------------------------------------===//
15 #if SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD || \
16 SANITIZER_OPENBSD || SANITIZER_SOLARIS
18 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB)
19 # error "interception_linux.h should be included from interception library only"
22 #ifndef INTERCEPTION_LINUX_H
23 #define INTERCEPTION_LINUX_H
25 namespace __interception {
26 // returns true if a function with the given name was found.
27 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
28 uptr real, uptr wrapper);
29 void *GetFuncAddrVer(const char *func_name, const char *ver);
30 } // namespace __interception
32 #define INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) \
33 ::__interception::GetRealFunctionAddress( \
34 #func, (::__interception::uptr *)&__interception::PTR_TO_REAL(func), \
35 (::__interception::uptr) & (func), \
36 (::__interception::uptr) & WRAP(func))
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::real_##func = (func##_type)( \
42 unsigned long)::__interception::GetFuncAddrVer(#func, symver))
44 #define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \
45 INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func)
46 #endif // !SANITIZER_ANDROID && !SANITIZER_SOLARIS
48 #endif // INTERCEPTION_LINUX_H
49 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
50 // SANITIZER_OPENBSD || SANITIZER_SOLARIS