diff options
Diffstat (limited to 'lldb/source/Plugins/TraceExporter')
5 files changed, 226 insertions, 0 deletions
diff --git a/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.cpp b/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.cpp new file mode 100644 index 000000000000..3dd4c89e2777 --- /dev/null +++ b/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.cpp @@ -0,0 +1,66 @@ +//===-- CommandObjectThreadTraceExportCTF.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 "CommandObjectThreadTraceExportCTF.h" + +#include "lldb/Host/OptionParser.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::ctf; +using namespace llvm; + +// CommandObjectThreadTraceExportCTF + +#define LLDB_OPTIONS_thread_trace_export_ctf +#include "TraceExporterCTFCommandOptions.inc" + +Status CommandObjectThreadTraceExportCTF::CommandOptions::SetOptionValue( + uint32_t option_idx, llvm::StringRef option_arg, + ExecutionContext *execution_context) { + Status error; + const int short_option = m_getopt_table[option_idx].val; + + switch (short_option) { + case 't': { + int64_t thread_index; + if (option_arg.empty() || option_arg.getAsInteger(0, thread_index) || + thread_index < 0) + error.SetErrorStringWithFormat("invalid integer value for option '%s'", + option_arg.str().c_str()); + else + m_thread_index = thread_index; + break; + } + default: + llvm_unreachable("Unimplemented option"); + } + return error; +} + +void CommandObjectThreadTraceExportCTF::CommandOptions::OptionParsingStarting( + ExecutionContext *execution_context) { + m_thread_index = None; +} + +llvm::ArrayRef<OptionDefinition> +CommandObjectThreadTraceExportCTF::CommandOptions::GetDefinitions() { + return llvm::makeArrayRef(g_thread_trace_export_ctf_options); +} + +bool CommandObjectThreadTraceExportCTF::DoExecute(Args &command, + CommandReturnObject &result) { + Stream &s = result.GetOutputStream(); + // TODO: create an actual instance of the exporter and invoke it + if (m_options.m_thread_index) + s.Printf("got thread index %d\n", (int)m_options.m_thread_index.getValue()); + else + s.Printf("didn't get a thread index\n"); + + return result.Succeeded(); +} diff --git a/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.h b/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.h new file mode 100644 index 000000000000..26b068a8f8c5 --- /dev/null +++ b/lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.h @@ -0,0 +1,56 @@ +//===-- CommandObjectThreadTraceExportCTF.h -------------------*- 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_COMMANDOBJECTTHREADTRACEEXPORTCTF_H +#define LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_COMMANDOBJECTTHREADTRACEEXPORTCTF_H + +#include "TraceExporterCTF.h" +#include "lldb/Interpreter/CommandInterpreter.h" +#include "lldb/Interpreter/CommandReturnObject.h" + +namespace lldb_private { +namespace ctf { + +class CommandObjectThreadTraceExportCTF : public CommandObjectParsed { +public: + class CommandOptions : public Options { + public: + CommandOptions() : Options() { OptionParsingStarting(nullptr); } + + Status SetOptionValue(uint32_t option_idx, llvm::StringRef option_arg, + ExecutionContext *execution_context) override; + + void OptionParsingStarting(ExecutionContext *execution_context) override; + + llvm::ArrayRef<OptionDefinition> GetDefinitions() override; + + llvm::Optional<size_t> m_thread_index; + }; + + CommandObjectThreadTraceExportCTF(CommandInterpreter &interpreter) + : CommandObjectParsed( + interpreter, "thread trace export ctf", + "Export a given thread's trace to Chrome Trace Format", + "thread trace export ctf [<ctf-options>]", + lldb::eCommandRequiresProcess | lldb::eCommandTryTargetAPILock | + lldb::eCommandProcessMustBeLaunched | + lldb::eCommandProcessMustBePaused), + m_options() {} + + Options *GetOptions() override { return &m_options; } + +protected: + bool DoExecute(Args &command, CommandReturnObject &result) override; + + CommandOptions m_options; +}; + +} // namespace ctf +} // namespace lldb_private + +#endif // LLDB_SOURCE_PLUGINS_TRACE_INTEL_PT_COMMANDOBJECTTHREADTRACEEXPORTCTF_H diff --git a/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.cpp b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.cpp new file mode 100644 index 000000000000..08bc03d78303 --- /dev/null +++ b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.cpp @@ -0,0 +1,53 @@ +//===-- TraceExporterCTF.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 "TraceExporterCTF.h" + +#include <memory> + +#include "CommandObjectThreadTraceExportCTF.h" +#include "lldb/Core/PluginManager.h" + +using namespace lldb; +using namespace lldb_private; +using namespace lldb_private::ctf; +using namespace llvm; + +LLDB_PLUGIN_DEFINE(TraceExporterCTF) + +//------------------------------------------------------------------ +// PluginInterface protocol +//------------------------------------------------------------------ + +static CommandObjectSP +GetThreadTraceExportCommand(CommandInterpreter &interpreter) { + return std::make_shared<CommandObjectThreadTraceExportCTF>(interpreter); +} + +void TraceExporterCTF::Initialize() { + PluginManager::RegisterPlugin(GetPluginNameStatic(), + "Chrome Trace Format Exporter", CreateInstance, + GetThreadTraceExportCommand); +} + +void TraceExporterCTF::Terminate() { + PluginManager::UnregisterPlugin(CreateInstance); +} + +ConstString TraceExporterCTF::GetPluginNameStatic() { + static ConstString g_name("ctf"); + return g_name; +} + +ConstString TraceExporterCTF::GetPluginName() { return GetPluginNameStatic(); } + +uint32_t TraceExporterCTF::GetPluginVersion() { return 1; } + +Expected<TraceExporterUP> TraceExporterCTF::CreateInstance() { + return std::make_unique<TraceExporterCTF>(); +} diff --git a/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.h b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.h new file mode 100644 index 000000000000..8f9e354ab0dd --- /dev/null +++ b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTF.h @@ -0,0 +1,42 @@ +//===-- TraceExporterCTF.h --------------------------------------*- 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLDB_SOURCE_PLUGINS_TRACE_EXPORTER_CTF_H +#define LLDB_SOURCE_PLUGINS_TRACE_EXPORTER_CTF_H + +#include "lldb/Target/TraceExporter.h" + +namespace lldb_private { +namespace ctf { + +/// Trace Exporter Plugin that can produce traces in Chrome Trace Format. +/// Still in development. +class TraceExporterCTF : public TraceExporter { +public: + ~TraceExporterCTF() override = default; + + /// PluginInterface protocol + /// \{ + static llvm::Expected<lldb::TraceExporterUP> CreateInstance(); + + ConstString GetPluginName() override; + + static void Initialize(); + + static void Terminate(); + + static ConstString GetPluginNameStatic(); + + uint32_t GetPluginVersion() override; + /// \} +}; + +} // namespace ctf +} // namespace lldb_private + +#endif // LLDB_SOURCE_PLUGINS_TRACE_EXPORTER_CTF_H diff --git a/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTFOptions.td b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTFOptions.td new file mode 100644 index 000000000000..ce751f148d9f --- /dev/null +++ b/lldb/source/Plugins/TraceExporter/ctf/TraceExporterCTFOptions.td @@ -0,0 +1,9 @@ +include "../../../../source/Commands/OptionsBase.td" + +let Command = "thread trace export ctf" in { + def thread_trace_export_ctf: Option<"tid", "t">, + Group<1>, + Arg<"ThreadIndex">, + Desc<"Export the trace for the specified thread index. Otherwise, the " + "currently selected thread will be used.">; +} |