1 //===-- interception_mac.h --------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is a part of AddressSanitizer, an address sanity checker. 11 // 12 // Mac-specific interception methods. 13 //===----------------------------------------------------------------------===// 14 15 #ifdef __APPLE__ 16 17 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB) 18 # error "interception_mac.h should be included from interception.h only" 19 #endif 20 21 #ifndef INTERCEPTION_MAC_H 22 #define INTERCEPTION_MAC_H 23 24 #include <mach/mach_error.h> 25 #include <stddef.h> 26 27 // Allocate memory for the escape island. This cannot be moved to 28 // mach_override, because each user of interceptors may specify its 29 // own memory range for escape islands. 30 extern "C" { 31 mach_error_t __interception_allocate_island(void **ptr, size_t unused_size, 32 void *unused_hint); 33 mach_error_t __interception_deallocate_island(void *ptr); 34 } // extern "C" 35 36 namespace __interception { 37 // returns true if the old function existed. 38 bool OverrideFunction(uptr old_func, uptr new_func, uptr *orig_old_func); 39 } // namespace __interception 40 41 # define OVERRIDE_FUNCTION_MAC(old_func, new_func) \ 42 ::__interception::OverrideFunction( \ 43 (::__interception::uptr)old_func, \ 44 (::__interception::uptr)new_func, \ 45 (::__interception::uptr*)&REAL(old_func)) 46 # define INTERCEPT_FUNCTION_MAC(func) OVERRIDE_FUNCTION_MAC(func, WRAP(func)) 47 48 #endif // INTERCEPTION_MAC_H 49 #endif // __APPLE__ 50
