1 files changed, 32 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/xray/xray_x86_64.inc b/contrib/llvm-project/compiler-rt/lib/xray/xray_x86_64.inc
new file mode 100644
index 000000000000..dc71fb87f63d
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/xray/xray_x86_64.inc
@@ -0,0 +1,32 @@
+//===-- xray_x86_64.inc -----------------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of XRay, a dynamic runtime instrumentation system.
+//
+//===----------------------------------------------------------------------===//
+
+#include <cstdint>
+
+#include "sanitizer_common/sanitizer_internal_defs.h"
+#include "xray_defs.h"
+
+namespace __xray {
+
+ALWAYS_INLINE uint64_t readTSC(uint8_t &CPU) XRAY_NEVER_INSTRUMENT {
+  unsigned LongCPU;
+  unsigned long Rax, Rdx;
+  __asm__ __volatile__("rdtscp\n" : "=a"(Rax), "=d"(Rdx), "=c"(LongCPU) ::);
+  CPU = LongCPU;
+  return (Rdx << 32) + Rax;
+}
+
+uint64_t getTSCFrequency();
+
+bool probeRequiredCPUFeatures();
+
+} // namespace __xray