| //===-- interception_mac.h --------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // 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*)&REAL(old_func)) |
| # define INTERCEPT_FUNCTION_MAC(func) OVERRIDE_FUNCTION_MAC(func, WRAP(func)) |
| |
| #endif // INTERCEPTION_MAC_H |
| #endif // __APPLE__ |