RTEMS5 for arm on macOS 12.3. Or how Apple blew up RTEMS.

[Chris Johns]

On 26/3/2022 8:44 am, Mr. Andrei Chichak wrote:
> Good day. It must be Friday afternoon, because my RTEMS5 install has been messed up. Yes, this install worked until now.
> 
> RTEMS5, stm32f4 BSP, macOS
> 
> I recently updated macOS to 12.3 (Monterey) and a “feature" of 12.3 is the removal of python 2.7. This caused arm-rtems5-gdb to fail with:
> 
> dyld[12480]: Library not loaded: /System/Library/Frameworks/Python.framework/Versions/2.7/Python 
>  Referenced from: /Users/andreichichak/RTEMS5/rtems/5/bin/arm-rtems5-gdb
>  Reason: tried: '/System/Library/Frameworks/Python.framework/Versions/2.7/Python' (no such file), '/Library/Frameworks/Python.framework/Versions/2.7/Python' (no such file) 
> Abort trap: 6
> 
> I went back to my install scripts, grabbed the latest RSB blob, then
> 
> ../source-builder/sb-set-builder —prefix=$HOME/RTEMS5/rtems/5 5/rtems-arm
> 
> goes well for a while then fails setting up to build gdb with:
> 
> config: tools/rtems-gdb-9.1-1.cfg
> error: config error: gdb-common-1.cfg:99: "gdb: python: header file not found: python3.8/Python.h, please install”
> 
> I had python 3.9 installed, so I used brew and installed 3.8, uninstalled 3.9, reinstalled 3.8, rebooted, but I get the same rsb failure.
> 
> I’m not sure how python is supposed to be configured. Maybe this is a clue:
> 
> python —version
> -bash: python: command not found
> 
> python3 —version
> Python 3.8.9
> 
> I seem to have a couple of instances of Python.h in an appropriately named directory:
> 
> /usr/local/Cellar/python at 3.8/3.8.13/Frameworks/Python.framework/Versions/3.8/include/python3.8/Python.h
> /System/Volumes/Data/usr/local/Cellar/python at 3.8/3.8.13/Frameworks/Python.framework/Versions/3.8/include/python3.8/Python.h
> 
> But something doesn’t seem to be pointing at one of those folders so the rsb script can find it.
> 
> Any hints?

I spent a small amount of time looking into the breakage around python on recent
MacOS versions and as you have discovered things have change. I need to look
into getting gdb to find and use the Xcode runtime for python3.

Chris