Description z.graignic 2011-07-13 10:31:31 EDT

Build Identifier: 

On Windows it is not possible to use in Unicode a long path prefix so paths can go beyond the _MAX_PATH limit. When such paths are used the win32 native launcher fails to find and load the library, producing the "the executable launcher was unable to locate its companion shared library" error when used on the console native launcher.

The given reproduction steps are using eclipse as an example. We are using the console version to start our RCP software.

We have tried with the latest code of the native launcher from the CVS and its the same.


Reproducible: Always

Steps to Reproduce:
1. Write a small console program with the follow code:

#include <windows.h>

#define PATH_TO_RCP_EXE_DIR L"C:\\Dev\\eclipse3.6-perso"
#define EXE_FILENAME L"eclipse.exe"

#define PATH_TO_RCP_EXE PATH_TO_RCP_EXE_DIR L"\\" EXE_FILENAME

int wmain(int argc, wchar_t argv[])
{
	STARTUPINFOW startupInfo;
    ZeroMemory(&startupInfo, sizeof(startupInfo));
    startupInfo.cb = sizeof(startupInfo);
    PROCESS_INFORMATION processInfo;
    ZeroMemory(&processInfo, sizeof(processInfo));

	// This one is working
	//if (CreateProcessW(PATH_TO_RCP_EXE, EXE_FILENAME, NULL, NULL, TRUE, CREATE_NO_WINDOW , NULL, PATH_TO_RCP_EXE_DIR, &startupInfo, &processInfo))

	// This one is not working
    if (CreateProcessW(L"\\\\?\\" PATH_TO_RCP_EXE, EXE_FILENAME, NULL, NULL, TRUE, CREATE_NO_WINDOW , NULL, L"\\\\?\\" PATH_TO_RCP_EXE_DIR, &startupInfo, &processInfo))
	{
	    WaitForSingleObject(processInfo.hProcess, INFINITE);
		CloseHandle(processInfo.hThread);
		CloseHandle(processInfo.hProcess);
	}

	return 0;
}


2. Execute the program

=> The child procress is started but the launcher fails to start the RCP application