1 files changed, 21 insertions, 0 deletions
diff --git a/compiler-rt/lib/lsan/lsan_preinit.cpp b/compiler-rt/lib/lsan/lsan_preinit.cpp
new file mode 100644
index 000000000000..cd94e1e8718e
--- /dev/null
+++ b/compiler-rt/lib/lsan/lsan_preinit.cpp
@@ -0,0 +1,21 @@
+//===-- lsan_preinit.cpp --------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of LeakSanitizer.
+//
+// Call __lsan_init at the very early stage of process startup.
+//===----------------------------------------------------------------------===//
+
+#include "lsan.h"
+
+#if SANITIZER_CAN_USE_PREINIT_ARRAY
+  // We force __lsan_init to be called before anyone else by placing it into
+  // .preinit_array section.
+  __attribute__((section(".preinit_array"), used))
+  void (*__local_lsan_preinit)(void) = __lsan_init;
+#endif