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