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71 lines
2.4 KiB
71 lines
2.4 KiB
//===-- MonitoringProcessLauncher.cpp -------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Host/MonitoringProcessLauncher.h"
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#include "lldb/Host/FileSystem.h"
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#include "lldb/Host/HostProcess.h"
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#include "lldb/Host/ProcessLaunchInfo.h"
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#include "lldb/Utility/Log.h"
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#include "llvm/Support/FileSystem.h"
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using namespace lldb;
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using namespace lldb_private;
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MonitoringProcessLauncher::MonitoringProcessLauncher(
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std::unique_ptr<ProcessLauncher> delegate_launcher)
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: m_delegate_launcher(std::move(delegate_launcher)) {}
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HostProcess
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MonitoringProcessLauncher::LaunchProcess(const ProcessLaunchInfo &launch_info,
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Status &error) {
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ProcessLaunchInfo resolved_info(launch_info);
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error.Clear();
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FileSystem &fs = FileSystem::Instance();
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FileSpec exe_spec(resolved_info.GetExecutableFile());
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if (!fs.Exists(exe_spec))
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FileSystem::Instance().Resolve(exe_spec);
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if (!fs.Exists(exe_spec))
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FileSystem::Instance().ResolveExecutableLocation(exe_spec);
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if (!fs.Exists(exe_spec)) {
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error.SetErrorStringWithFormatv("executable doesn't exist: '{0}'",
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exe_spec);
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return HostProcess();
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}
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resolved_info.SetExecutableFile(exe_spec, false);
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assert(!resolved_info.GetFlags().Test(eLaunchFlagLaunchInTTY));
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HostProcess process =
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m_delegate_launcher->LaunchProcess(resolved_info, error);
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if (process.GetProcessId() != LLDB_INVALID_PROCESS_ID) {
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Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS));
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assert(launch_info.GetMonitorProcessCallback());
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llvm::Expected<HostThread> maybe_thread =
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process.StartMonitoring(launch_info.GetMonitorProcessCallback(),
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launch_info.GetMonitorSignals());
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if (!maybe_thread)
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error.SetErrorStringWithFormatv("failed to launch host thread: {}",
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llvm::toString(maybe_thread.takeError()));
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if (log)
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log->PutCString("started monitoring child process.");
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} else {
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// Invalid process ID, something didn't go well
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if (error.Success())
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error.SetErrorString("process launch failed for unknown reasons");
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}
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return process;
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}
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