Import compiler-rt r160957.

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/interception/interception_mac.cc b/lib/interception/interception_mac.cc
new file mode 100644
index 0000000..cc9e4a7
--- /dev/null
+++ b/lib/interception/interception_mac.cc
@@ -0,0 +1,33 @@
+//===-- interception_mac.cc -------------------------------------*- 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__
+
+#define INCLUDED_FROM_INTERCEPTION_LIB
+#include "interception_mac.h"
+#undef INCLUDED_FROM_INTERCEPTION_LIB
+#include "mach_override/mach_override.h"
+
+namespace __interception {
+bool OverrideFunction(void *old_func, void *new_func, void **orig_old_func) {
+  *orig_old_func = NULL;
+  int res = __asan_mach_override_ptr_custom(old_func, new_func,
+                                            orig_old_func,
+                                            __interception_allocate_island,
+                                            __interception_deallocate_island);
+  return (res == 0) && (*orig_old_func != NULL);
+}
+}  // namespace __interception
+
+#endif  // __APPLE__