Access files in WSL filesystem by exe in Windows' filesystem

[Joker2387089590]

Version

Microsoft Windows [Version 10.0.19043.1348]

WSL Version

• WSL 2
• WSL 1

Kernel Version

5.4.72

Distro Version

Ubuntu 20.04

Other Software

notepad.exe or any exe located on Windows

Repro Steps

1. Open terminal and run wsl.exe
2. Write a simple C source file: echo 'int main() { return 0; }' > ~/main.c
3. run cd ~ && notepad.exe ~/main.c, OK
4. run cd /mnt/c && notepad.exe ~/main.c, notepad can't find the file

Expected Behavior

The exe files (in Windows) will work fine when the current working directory is on both Windows and WSL.

Actual Behavior

Only the working directory is on Linux that exe files can find the files in WSL's filesystem.

Diagnostic Logs

No response

[Biswa96]

That ~/main.c path has to be converted to Win style first. i.e. this may work notepad.exe $(wslpath -w ~/main.c)

[Joker2387089590]

That ~/main.c path has to be converted to Win style first. i.e. this may work notepad.exe $(wslpath -w ~/main.c)

Yes, it works. But actually, I'm using CMake to compile it. The path sent to compiler is generated by CMake and hard to modify it.

[Biswa96]

CMake where?

[Joker2387089590]

CMake where?
WSL /usr/bin

[Biswa96]

CMake in Linux environment can access ~/main.c without any path conversion.

If the CMake in Windows environment you need something like in VSCode or ssh.

[Joker2387089590]

CMake in Linux environment can access ~/main.c without any path conversion.

If the CMake in Windows environment you need something like in VSCode or ssh.

Yes, I built the project successfully. Thank you!
Howerver, the problem in issue seems to be not solved... It didn't appear When I used WSL1. So I guess that maybe the exe is executed by Windows directly, in order to optimize the speed of accessing files.