새로운 미용실을 가다.

https://medium.com/@alkenso/remote-debug-of-macos-application-using-xcode-1d714d6314bb

Summary

1. Turn on Xcode feature
   • defaults write com.apple.dt.Xcode IDEDebuggerFeatureSetting 12
2. Copy 'debugserver' to the target VM
   • From "/Applications/Xcode.app/Contents/SharedFrameworks/LLDB.framework/Versions/A/Resources/debugserver"
3. Lauch and debug the app
   • In target VM
     • Attach
       • ./debugserver ip:port --attach=pid
       • ./debugserver ip:port --attach=name
     • Lauch
       • ./debugserver ip:port /path/to/executable
   • In Host
     • Switch Lauch to 'Custom LLDM commands' in Scheme > Info
       • Enter the command 'process connect connect://ip:port'
4. Collect debug symbols of the target VM
   1. Collect debug symbols from the target machine using 'dyld-shared-cache-extractor'
   2. Get OS version and build number
      1. sw_vers -productVersion → 12.6.1
      2. sw_vers -buildVersion → 21G217
   3. Copy all symbols under ~/Library/Developer/Xcode/macOS DeviceSupport/12.6.1 (21G217)
   4. Restart Xcode

Recently, I changed the lambda code to capture a local variable, and then the code didn't compile.
What I found was that only a lambda without capture can be converted to a function pointer.

[expr.prim.lambda]

Usually, the parent process is the process that creats the new process. But you can change this behavior by setting STARTUPINFOEX.lpAttributeList.

HANDLE hParentProcess{ nullptr };
LPPROC_THREAD_ATTRIBUTE_LIST attrList{ nullptr };


// Initialize LPPROC_THREAD_ATTRIBUTE_LIST
hParentProcess = OpenProcess(PROCESS_CREATE_PROCESS, FALSE, parentProcessId);

SIZE_T attrListSize = 0;
InitializeProcThreadAttributeList(nullptr, 1, 0, &attrListSize);
attrList = (LPPROC_THREAD_ATTRIBUTE_LIST)malloc(attrListSize);

InitializeProcThreadAttributeList(attrList, 1, 0, &attrListSize);

UpdateProcThreadAttribute(attrList, 0, PROC_THREAD_ATTRIBUTE_PARENT_PROCESS, &hParentProcess,
	sizeof(hParentProcess), nullptr, nullptr);


// Set LPPROC_THREAD_ATTRIBUTE_LIST to the STARTUPINFOEX
STARTUPINFOEX  si = { sizeof(si) };
si.StartupInfo.cb = sizeof(si);
si.lpAttributeList = attrList;

PROCESS_INFORMATION pi = { 0 };


CreateProcess(nullptr, argv[1], nullptr, nullptr, FALSE, EXTENDED_STARTUPINFO_PRESENT, nullptr, nullptr, &si.StartupInfo, &pi);