1//===-- CommandObjectThreadTraceExportCTF.cpp -----------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "CommandObjectThreadTraceExportCTF.h"
10
11#include "../common/TraceHTR.h"
12#include "lldb/Host/OptionParser.h"
13#include "lldb/Interpreter/CommandOptionArgumentTable.h"
14#include "lldb/Target/Process.h"
15#include "lldb/Target/Trace.h"
16
17using namespace lldb;
18using namespace lldb_private;
19using namespace lldb_private::ctf;
20using namespace llvm;
21
22// CommandObjectThreadTraceExportCTF
23
24#define LLDB_OPTIONS_thread_trace_export_ctf
25#include "TraceExporterCTFCommandOptions.inc"
26
27Status CommandObjectThreadTraceExportCTF::CommandOptions::SetOptionValue(
28 uint32_t option_idx, llvm::StringRef option_arg,
29 ExecutionContext *execution_context) {
30 Status error;
31 const int short_option = m_getopt_table[option_idx].val;
32
33 switch (short_option) {
34 case 'f': {
35 m_file.assign(str: std::string(option_arg));
36 break;
37 }
38 case 't': {
39 int64_t thread_index;
40 if (option_arg.empty() || option_arg.getAsInteger(0, thread_index) ||
41 thread_index < 0)
42 error = Status::FromErrorStringWithFormatv(
43 "invalid integer value for option '{0}'", option_arg);
44 else
45 m_thread_index = thread_index;
46 break;
47 }
48 default:
49 llvm_unreachable("Unimplemented option");
50 }
51 return error;
52}
53
54void CommandObjectThreadTraceExportCTF::CommandOptions::OptionParsingStarting(
55 ExecutionContext *execution_context) {
56 m_file.clear();
57 m_thread_index = std::nullopt;
58}
59
60llvm::ArrayRef<OptionDefinition>
61CommandObjectThreadTraceExportCTF::CommandOptions::GetDefinitions() {
62 return llvm::ArrayRef(g_thread_trace_export_ctf_options);
63}
64
65void CommandObjectThreadTraceExportCTF::DoExecute(Args &command,
66 CommandReturnObject &result) {
67 const TraceSP &trace_sp = m_exe_ctx.GetTargetSP()->GetTrace();
68 Process *process = m_exe_ctx.GetProcessPtr();
69 Thread *thread = m_options.m_thread_index
70 ? process->GetThreadList()
71 .FindThreadByIndexID(index_id: *m_options.m_thread_index)
72 .get()
73 : GetDefaultThread();
74
75 if (thread == nullptr) {
76 const uint32_t num_threads = process->GetThreadList().GetSize();
77 size_t tid = m_options.m_thread_index.value_or(LLDB_INVALID_THREAD_ID);
78 result.AppendErrorWithFormatv(
79 format: "Thread index {0} is out of range (valid values are 1 - {1}).\n", args&: tid,
80 args: num_threads);
81 } else {
82 auto do_work = [&]() -> Error {
83 Expected<TraceCursorSP> cursor = trace_sp->CreateNewCursor(thread&: *thread);
84 if (!cursor)
85 return cursor.takeError();
86 TraceHTR htr(*thread, **cursor);
87 htr.ExecutePasses();
88 return htr.Export(outfile: m_options.m_file);
89 };
90
91 if (llvm::Error err = do_work()) {
92 result.AppendErrorWithFormat(format: "%s\n", toString(E: std::move(err)).c_str());
93 }
94 }
95}
96

source code of lldb/source/Plugins/TraceExporter/ctf/CommandObjectThreadTraceExportCTF.cpp