Merge pull request #23529 from alexrp/2879-groundwork

Introduce libzigc for libc function implementations in Zig

1 files changed, 24 insertions, 0 deletions

diff --git a/lib/libtsan/tsan_preinit.cpp b/lib/libtsan/tsan_preinit.cpp
new file mode 100644
index 0000000000..69700f2dde
--- /dev/null
+++ b/lib/libtsan/tsan_preinit.cpp
@@ -0,0 +1,24 @@
+//===-- tsan_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 ThreadSanitizer.
+//
+// Call __tsan_init at the very early stage of process startup.
+//===----------------------------------------------------------------------===//
+
+#include "sanitizer_common/sanitizer_internal_defs.h"
+#include "tsan_interface.h"
+
+#if SANITIZER_CAN_USE_PREINIT_ARRAY
+
+// This section is linked into the main executable when -fsanitize=thread is
+// specified to perform initialization at a very early stage.
+__attribute__((section(".preinit_array"), used)) static auto preinit =
+    __tsan_init;
+
+#endif