compile - files with CreateProcess error (windows) - path max length limitation

[0xc0170]

It seems like I am hitting windows path limit. This was a problem with yotta, which I recall added unicode paths support, to overcome this?

cd C:\Code\git_repo\github\mbed-rtos-thread-helloworld
python C:\Code\git_repo\github\neo\neo.py compile -m K64F -t GCC_ARM
[neo.py] Exec python mbed-os/tools/make.py --source=C:\Code\git_repo\github\mbed-rtos-thread-helloworld --build=C:\Code\git_repo\github\mbed-rtos-thread-helloworld\.build -m K64F -t GCC_ARM
Building project MBED-RTOS-THREAD-HELLOWORLD (K64F, GCC_ARM)
[ERROR] [Error 87] The parameter is incorrect

vs

cd C:\2
python C:\Code\git_repo\github\neo\neo.py compile -m K64F -t GCC_ARM
[neo.py] Exec python mbed-os/tools/make.py --source=C:\2 --build=C:\2\.build -m K64F -t GCC_ARM
Building project 2 (K64F, GCC_ARM)
Compile: Mutex.cpp
Compile: RtosTimer.cpp
Compile: Semaphore.cpp
Compile: Thread.cpp

[screamerbg]

It would be great if you could help find the workaround yotta used! :)

[meriac]

@screamerbg : use the Unicode process creation API in python (32k path limit versus 260 characters path limit).

[screamerbg]

yotta workaround has been applied, yet compiling Thread and everything else generates 38000 symbols link command. This will be addressed with response files.

[0xc0170]

yotta workaround has been applied, yet compiling Thread and everything else generates 38000 symbols link command. This will be addressed with response files.

Please provide commit/PR reference, or might be better to reference this via commit message, we can track/review changes done for this issue.

[bridadan]

Hitting this now too. I'd be happy to help review the commit/PR when its ready

[0xc0170]

I am hitting the error even with a folder C:/5 for morpheus code example. It used to be fine before we merge few more modules in, now I can't link a program :( This is a blocker for me now.

# imported mbed-Client-Morpheus-from-source
C:\5
python neo.py compile -m K64F -t GCC_ARM
[neo.py] Working path "C:\5" (program)
# lot of compilation here
Link: 5
[ERROR] [Error 87] The parameter is incorrect

[bogdanm]

Unless someone objects, I'll try to fix this today, at least for GCC, since it's clearly a blocker for some people.

[bogdanm]

Workaround until this is fixed: try running in a Linux VM.

[meriac]

@bogdanm https://msdn.microsoft.com/en-us/commandline/wsl/about (run native Ubuntu on Windows - no VM needed any more)

[bogdanm]

@meriac, I think that only works in Windows 10 though :(

[bogdanm]

A partial fix for the command line problem is in ARMmbed/mbed-os#43. It's partial because it only covers linking. That seems to work for now, but in the future it might have to be extended for compilation too. In any case, I'm closing this for now, since this particular issue is solved by that commit.

[0xc0170]

Working now, the example which failed previously. Thanks