Re-commit r294826 and r294781, with a fix on the cmake file to only

compile on powerpc64le.

I cannot locally reproduce this test failure:
http://lab.llvm.org:8011/builders/sanitizer-ppc64le-linux/builds/1363/steps/test%20standalone%20compiler-rt/logs/stdio

Let's see how the buildbot goes.

Differential Revision: https://reviews.llvm.org/D29742

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@295017 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/xray/xray_powerpc64.inc b/lib/xray/xray_powerpc64.inc
new file mode 100644
index 000000000..c1a1bac1a
--- /dev/null
+++ b/lib/xray/xray_powerpc64.inc
@@ -0,0 +1,37 @@
+//===-- xray_powerpc64.inc --------------------------------------*- 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 XRay, a dynamic runtime instrumentation system.
+//
+//===----------------------------------------------------------------------===//
+
+#include <cstdint>
+#include <mutex>
+#include <sys/platform/ppc.h>
+
+#include "xray_defs.h"
+
+namespace __xray {
+
+ALWAYS_INLINE uint64_t readTSC(uint8_t &CPU) XRAY_NEVER_INSTRUMENT {
+  CPU = 0;
+  return __ppc_get_timebase();
+}
+
+inline uint64_t getTSCFrequency() XRAY_NEVER_INSTRUMENT {
+  static std::mutex M;
+  std::lock_guard<std::mutex> Guard(M);
+  return __ppc_get_timebase_freq();
+}
+
+inline bool probeRequiredCPUFeatures() XRAY_NEVER_INSTRUMENT {
+  return true;
+}
+
+} // namespace __xray