[lldb] [llvm] [llvm]Added lib/Telemetry (PR #98528)

[Pavel Labath via llvm-commits]

================
@@ -0,0 +1,619 @@
+
+//===-- Telemetry.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
+//
+//===----------------------------------------------------------------------===//
+#include "lldb/Core/Telemetry.h"
+
+#include <stdbool.h>
+#include <sys/auxv.h>
+
+#include <memory>
+
+#include <chrono>
+#include <cstdlib>
+#include <ctime>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <typeinfo>
+#include <utility>
+#include <vector>
+
+#include "lldb/API/SBDebugger.h"
+#include "lldb/API/SBProcess.h"
+#include "lldb/Core/Debugger.h"
+#include "lldb/Core/Module.h"
+#include "lldb/Host/FileSystem.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Interpreter/CommandInterpreter.h"
+#include "lldb/Target/Process.h"
+#include "lldb/Target/Statistics.h"
+#include "lldb/Utility/ConstString.h"
+#include "lldb/Utility/FileSpec.h"
+#include "lldb/Utility/UUID.h"
+#include "lldb/Version/Version.h"
+#include "lldb/lldb-enumerations.h"
+#include "lldb/lldb-forward.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/LineIterator.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/Path.h"
+#include "llvm/Support/RandomNumberGenerator.h"
+#include "llvm/Telemetry/Telemetry.h"
+
+#ifdef HAS_VENDOR_TELEMETRY_PLUGINS
+// TODO: could make this path a build-variable rather than hard-coded
+#include "lldb/Core/VendorTelemetryPlugin.h"
+
+// This must include definitions for these functions
+extern void ApplyVendorSpecificConfigs(
+    llvm::telemetry::TelemetryConfig *config) /* __attribute__((weak))*/;
+extern std::shared_ptr<llvm::telemetry::TelemetryInfo> SanitizeSensitiveFields(
+    const llvm::telemetry::TelemetryInfo *entry) /*__attribute__((weak))*/;
+extern std::shared_ptr<lldb_private::LldbTelemeter>
+CreateVendorSpecificTelemeter(
+    llvm::telemetry::TelemetryConfig *config) /*__attribute__((weak))*/;
+#endif
+
+namespace lldb_private {
+
+static std::string GetDuration(const TelemetryEventStats &stats) {
+  if (stats.m_end.has_value())
+    return std::to_string((stats.m_end.value() - stats.m_start).count()) +
+           "(nanosec)";
+  return "<NONE>";
+}
+
+std::string DebuggerTelemetryInfo::ToString() const {
+  std::string duration_desc =
+      (exit_description.has_value() ? "  lldb session duration: "
+                                    : "  lldb startup duration: ") +
+      std::to_string((stats.m_end.value() - stats.m_start).count()) +
+      "(nanosec)\n";
----------------
labath wrote:

```suggestion
llvm::formatv(" lldb {0} duration: {1:ns}", exit_description?"session":"startup", stats.m_end.value() - stats.m_start);
```

https://github.com/llvm/llvm-project/pull/98528