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-rw-r--r--lib/asan/asan_win_weak_interception.cc23
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diff --git a/lib/asan/asan_win_weak_interception.cc b/lib/asan/asan_win_weak_interception.cc
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+//===-- asan_win_weak_interception.cc -------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// This module should be included in Address Sanitizer when it is implemented as
+// a shared library on Windows (dll), in order to delegate the calls of weak
+// functions to the implementation in the main executable when a strong
+// definition is provided.
+//===----------------------------------------------------------------------===//
+#ifdef SANITIZER_DYNAMIC
+#include "sanitizer_common/sanitizer_win_weak_interception.h"
+#include "asan_interface_internal.h"
+// Check if strong definitions for weak functions are present in the main
+// executable. If that is the case, override dll functions to point to strong
+// implementations.
+#define INTERFACE_FUNCTION(Name)
+#define INTERFACE_WEAK_FUNCTION(Name) INTERCEPT_SANITIZER_WEAK_FUNCTION(Name)
+#include "asan_interface.inc"
+#endif // SANITIZER_DYNAMIC