1 //===-- ProcessLauncherWindows.cpp ------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/Core/Error.h" 11 #include "lldb/Core/Log.h" 12 #include "lldb/Core/Module.h" 13 #include "lldb/Host/HostProcess.h" 14 #include "lldb/Host/MonitoringProcessLauncher.h" 15 #include "lldb/Target/Platform.h" 16 #include "lldb/Target/Process.h" 17 #include "lldb/Target/ProcessLaunchInfo.h" 18 19 using namespace lldb; 20 using namespace lldb_private; 21 22 MonitoringProcessLauncher::MonitoringProcessLauncher(std::unique_ptr<ProcessLauncher> delegate_launcher) 23 : m_delegate_launcher(std::move(delegate_launcher)) 24 { 25 } 26 27 HostProcess 28 MonitoringProcessLauncher::LaunchProcess(const ProcessLaunchInfo &launch_info, Error &error) 29 { 30 ProcessLaunchInfo resolved_info(launch_info); 31 32 error.Clear(); 33 char exe_path[PATH_MAX]; 34 35 PlatformSP host_platform_sp(Platform::GetHostPlatform()); 36 37 const ArchSpec &arch_spec = resolved_info.GetArchitecture(); 38 39 FileSpec exe_spec(resolved_info.GetExecutableFile()); 40 41 FileSpec::FileType file_type = exe_spec.GetFileType(); 42 if (file_type != FileSpec::eFileTypeRegular) 43 { 44 lldb::ModuleSP exe_module_sp; 45 error = host_platform_sp->ResolveExecutable(exe_spec, arch_spec, exe_module_sp, NULL); 46 47 if (error.Fail()) 48 return HostProcess(); 49 50 if (exe_module_sp) 51 exe_spec = exe_module_sp->GetFileSpec(); 52 } 53 54 if (exe_spec.Exists()) 55 { 56 exe_spec.GetPath(exe_path, sizeof(exe_path)); 57 } 58 else 59 { 60 resolved_info.GetExecutableFile().GetPath(exe_path, sizeof(exe_path)); 61 error.SetErrorStringWithFormat("executable doesn't exist: '%s'", exe_path); 62 return HostProcess(); 63 } 64 65 resolved_info.SetExecutableFile(exe_spec, false); 66 assert(!resolved_info.GetFlags().Test(eLaunchFlagLaunchInTTY)); 67 68 HostProcess process = m_delegate_launcher->LaunchProcess(resolved_info, error); 69 70 if (process.GetProcessId() != LLDB_INVALID_PROCESS_ID) 71 { 72 Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS)); 73 74 Host::MonitorChildProcessCallback callback = launch_info.GetMonitorProcessCallback(); 75 76 void *baton = nullptr; 77 bool monitor_signals = false; 78 if (callback) 79 { 80 // If the ProcessLaunchInfo specified a callback, use that. 81 baton = launch_info.GetMonitorProcessBaton(); 82 monitor_signals = launch_info.GetMonitorSignals(); 83 } 84 else 85 { 86 callback = Process::SetProcessExitStatus; 87 } 88 89 process.StartMonitoring(callback, baton, monitor_signals); 90 if (log) 91 log->PutCString("started monitoring child process."); 92 } 93 else 94 { 95 // Invalid process ID, something didn't go well 96 if (error.Success()) 97 error.SetErrorString("process launch failed for unknown reasons"); 98 } 99 return process; 100 } 101