| //===-- MonitoringProcessLauncher.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/Host/MonitoringProcessLauncher.h" |
| #include "lldb/Host/FileSystem.h" |
| #include "lldb/Host/HostProcess.h" |
| #include "lldb/Host/ProcessLaunchInfo.h" |
| #include "lldb/Utility/Log.h" |
| |
| #include "llvm/Support/FileSystem.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| MonitoringProcessLauncher::MonitoringProcessLauncher( |
| std::unique_ptr<ProcessLauncher> delegate_launcher) |
| : m_delegate_launcher(std::move(delegate_launcher)) {} |
| |
| HostProcess |
| MonitoringProcessLauncher::LaunchProcess(const ProcessLaunchInfo &launch_info, |
| Status &error) { |
| ProcessLaunchInfo resolved_info(launch_info); |
| |
| error.Clear(); |
| |
| FileSystem &fs = FileSystem::Instance(); |
| FileSpec exe_spec(resolved_info.GetExecutableFile()); |
| |
| if (!fs.Exists(exe_spec)) |
| FileSystem::Instance().Resolve(exe_spec); |
| |
| if (!fs.Exists(exe_spec)) |
| FileSystem::Instance().ResolveExecutableLocation(exe_spec); |
| |
| if (!fs.Exists(exe_spec)) { |
| error.SetErrorStringWithFormatv("executable doesn't exist: '{0}'", |
| exe_spec); |
| return HostProcess(); |
| } |
| |
| resolved_info.SetExecutableFile(exe_spec, false); |
| assert(!resolved_info.GetFlags().Test(eLaunchFlagLaunchInTTY)); |
| |
| HostProcess process = |
| m_delegate_launcher->LaunchProcess(resolved_info, error); |
| |
| if (process.GetProcessId() != LLDB_INVALID_PROCESS_ID) { |
| Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS)); |
| |
| assert(launch_info.GetMonitorProcessCallback()); |
| llvm::Expected<HostThread> maybe_thread = |
| process.StartMonitoring(launch_info.GetMonitorProcessCallback(), |
| launch_info.GetMonitorSignals()); |
| if (!maybe_thread) |
| error.SetErrorStringWithFormatv("failed to launch host thread: {}", |
| llvm::toString(maybe_thread.takeError())); |
| if (log) |
| log->PutCString("started monitoring child process."); |
| } else { |
| // Invalid process ID, something didn't go well |
| if (error.Success()) |
| error.SetErrorString("process launch failed for unknown reasons"); |
| } |
| return process; |
| } |