15b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov//===-- interception_mac.h --------------------------------------*- C++ -*-===// 25b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// 35b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// The LLVM Compiler Infrastructure 45b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// 55b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// This file is distributed under the University of Illinois Open Source 65b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// License. See LICENSE.TXT for details. 75b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// 85b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov//===----------------------------------------------------------------------===// 95b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// 105b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// This file is a part of AddressSanitizer, an address sanity checker. 115b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// 125b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// Mac-specific interception methods. 135b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov//===----------------------------------------------------------------------===// 145b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 155b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#ifdef __APPLE__ 165b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 175b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#if !defined(INCLUDED_FROM_INTERCEPTION_LIB) 185b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov# error "interception_mac.h should be included from interception.h only" 195b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#endif 205b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 215b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#ifndef INTERCEPTION_MAC_H 225b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#define INTERCEPTION_MAC_H 235b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 245b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#include <mach/mach_error.h> 255b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#include <stddef.h> 265b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 275b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// Allocate memory for the escape island. This cannot be moved to 285b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// mach_override, because each user of interceptors may specify its 295b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// own memory range for escape islands. 305b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonovextern "C" { 315b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonovmach_error_t __interception_allocate_island(void **ptr, size_t unused_size, 325b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov void *unused_hint); 335b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonovmach_error_t __interception_deallocate_island(void *ptr); 345b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov} // extern "C" 355b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 365b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonovnamespace __interception { 375b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov// returns true if the old function existed. 385b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonovbool OverrideFunction(void *old_func, void *new_func, void **orig_old_func); 395b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov} // namespace __interception 405b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 415b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov# define OVERRIDE_FUNCTION_MAC(old_func, new_func) \ 425b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov ::__interception::OverrideFunction((void*)old_func, (void*)new_func, \ 435b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov (void**)&REAL(old_func)) 445b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov# define INTERCEPT_FUNCTION_MAC(func) OVERRIDE_FUNCTION_MAC(func, WRAP(func)) 455b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov 465b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#endif // INTERCEPTION_MAC_H 475b29018cf422e7711fb760b733c32127397a43fcAlexey Samsonov#endif // __APPLE__ 48