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//===-- interception_mac.h --------------------------------------*- C++ -*-===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// Mac-specific interception methods.
//===----------------------------------------------------------------------===//
#ifdef __APPLE__
#if !defined(INCLUDED_FROM_INTERCEPTION_LIB)
# error "interception_mac.h should be included from interception.h only"
#endif
#ifndef INTERCEPTION_MAC_H
#define INTERCEPTION_MAC_H
#include <mach/mach_error.h>
#include <stddef.h>
// Allocate memory for the escape island. This cannot be moved to
// mach_override, because each user of interceptors may specify its
// own memory range for escape islands.
extern "C" {
mach_error_t __interception_allocate_island(void **ptr, size_t unused_size,
void *unused_hint);
mach_error_t __interception_deallocate_island(void *ptr);
} // extern "C"
namespace __interception {
// returns true if the old function existed.
bool OverrideFunction(uptr old_func, uptr new_func, uptr *orig_old_func);
} // namespace __interception
# define OVERRIDE_FUNCTION_MAC(old_func, new_func) \
::__interception::OverrideFunction( \
(::__interception::uptr)old_func, \
(::__interception::uptr)new_func, \
(::__interception::uptr*)((::__interception::uptr)&REAL(old_func)))
# define INTERCEPT_FUNCTION_MAC(func) OVERRIDE_FUNCTION_MAC(func, WRAP(func))
#endif // INTERCEPTION_MAC_H
#endif // __APPLE__
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