1 files changed, 24 insertions, 0 deletions
diff --git a/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp b/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp
new file mode 100644
index 000000000000..e44e6299eeac
--- /dev/null
+++ b/compiler-rt/lib/gwp_asan/platform_specific/common_posix.cpp
@@ -0,0 +1,24 @@
+//===-- common_posix.cpp ---------------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "gwp_asan/common.h"
+
+#include <sys/syscall.h>
+#include <unistd.h>
+
+namespace gwp_asan {
+
+uint64_t getThreadID() {
+#ifdef SYS_gettid
+  return syscall(SYS_gettid);
+#else
+  return kInvalidThreadID;
+#endif
+}
+
+} // namespace gwp_asan