[lsan] Add __lsan_disable() and __lsan_enable().

Objects allocated after a call to __lsan_disable() will be treated as
live memory. Also add a ScopedDisabler.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@183099 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 39 insertions, 0 deletions

diff --git a/include/sanitizer/lsan_interface.h b/include/sanitizer/lsan_interface.h
new file mode 100644
index 000000000..cdb3b39dd
--- /dev/null
+++ b/include/sanitizer/lsan_interface.h
@@ -0,0 +1,39 @@
+//===-- sanitizer/lsan_interface.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 LeakSanitizer.
+//
+// Public interface header.
+//===----------------------------------------------------------------------===//
+#ifndef SANITIZER_LSAN_INTERFACE_H
+#define SANITIZER_LSAN_INTERFACE_H
+
+#include <sanitizer/common_interface_defs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  // Allocations made between calls to __lsan_disable() and __lsan_enable() will
+  // be treated as non-leaks. Disable/enable pairs can be nested.
+  void __lsan_disable();
+  void __lsan_enable();
+
+#ifdef __cplusplus
+}  // extern "C"
+
+namespace __lsan {
+class ScopedDisabler {
+ public:
+  ScopedDisabler() { __lsan_disable(); }
+  ~ScopedDisabler() { __lsan_enable(); }
+};
+}  // namespace __lsan
+#endif
+
+#endif  // SANITIZER_LSAN_INTERFACE_H