1 files changed, 69 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/xray/xray_log_interface.cc b/contrib/compiler-rt/lib/xray/xray_log_interface.cc
new file mode 100644
index 0000000..ee14ae4
--- /dev/null
+++ b/contrib/compiler-rt/lib/xray/xray_log_interface.cc
@@ -0,0 +1,69 @@
+//===-- xray_log_interface.cc ---------------------------------------------===//
+//
+//                     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 function call tracing system.
+//
+//===----------------------------------------------------------------------===//
+#include "xray/xray_log_interface.h"
+
+#include "sanitizer_common/sanitizer_atomic.h"
+#include "sanitizer_common/sanitizer_mutex.h"
+#include "xray/xray_interface.h"
+#include "xray_defs.h"
+
+#include <memory>
+
+__sanitizer::SpinMutex XRayImplMutex;
+std::unique_ptr<XRayLogImpl> GlobalXRayImpl;
+
+void __xray_set_log_impl(XRayLogImpl Impl) XRAY_NEVER_INSTRUMENT {
+  if (Impl.log_init == nullptr || Impl.log_finalize == nullptr ||
+      Impl.handle_arg0 == nullptr || Impl.flush_log == nullptr) {
+    __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+    GlobalXRayImpl.reset();
+    __xray_remove_handler();
+    __xray_remove_handler_arg1();
+    return;
+  }
+
+  __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+  GlobalXRayImpl.reset(new XRayLogImpl);
+  *GlobalXRayImpl = Impl;
+  __xray_set_handler(Impl.handle_arg0);
+}
+
+void __xray_remove_log_impl() XRAY_NEVER_INSTRUMENT {
+  __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+  GlobalXRayImpl.reset();
+  __xray_remove_handler();
+  __xray_remove_handler_arg1();
+}
+
+XRayLogInitStatus __xray_log_init(size_t BufferSize, size_t MaxBuffers,
+                                  void *Args,
+                                  size_t ArgsSize) XRAY_NEVER_INSTRUMENT {
+  __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+  if (!GlobalXRayImpl)
+    return XRayLogInitStatus::XRAY_LOG_UNINITIALIZED;
+  return GlobalXRayImpl->log_init(BufferSize, MaxBuffers, Args, ArgsSize);
+}
+
+XRayLogInitStatus __xray_log_finalize() XRAY_NEVER_INSTRUMENT {
+  __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+  if (!GlobalXRayImpl)
+    return XRayLogInitStatus::XRAY_LOG_UNINITIALIZED;
+  return GlobalXRayImpl->log_finalize();
+}
+
+XRayLogFlushStatus __xray_log_flushLog() XRAY_NEVER_INSTRUMENT {
+  __sanitizer::SpinMutexLock Guard(&XRayImplMutex);
+  if (!GlobalXRayImpl)
+    return XRayLogFlushStatus::XRAY_LOG_NOT_FLUSHING;
+  return GlobalXRayImpl->flush_log();
+}