Permission denied on Make for xtensa-lx106-elf-gcc

[lambu0815]

Hi,

as a newbie to cross compilation I am trying to compile a driver written in C for use on an XBee3 board on which I previously successfully ran a ESP8266 library.

I am following this guide/example: https://docs.micropython.org/en/latest ... tmod.html

The example compiles fine for my x64 architecture. However trying to compile for xtensa gives me "Permission denied":

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 make: xtensa-lx106-elf-gcc: Permission denied 

I installed xtensa-lx106-elf-gcc, it sits in /opt and I changed owner from root to myself, chmod-ing also doesn't help. OS is arch linux.

Any suggestions? Thank you!

[davef]

Did you try:

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sudo make

[lambu0815]

sure did

[Roberthh]

can you verify, that xtensa-lx106-gcc has the x flag set as being executable?

[pythoncoder]

Also check permissions for its parent directories.

[lambu0815]

yes:

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 drwxr-xr-x  8 andre users 4096 20. Aug 13:33 xtensa-lx106-elf-gcc 

(and all the same downwards from there)

but now seeing you, Robert, here, I might as well tell you the device I'm going to use on the XBee3 via I2C: Its from the family of "DLV Series Low Voltage Digital Pressure Sensors" and the only library I could find is this one: https://github.com/jeremycole/AllSensors_DLV

I've successfully used your BME280 library (thank you!), but we also need a higher pressure sensor (up to 2000 mbar).

[lambu0815]

@pythoncoder: well, the parent directory is /opt, guess I shouldn't fiddle with that. But sudo didn't work either.

[Roberthh]

The xtensa-lx106-elf-gcc looks strange, since it has the d-flag set, meaning it's a directory. On my system, it is an executable, residing in a tree of ..../esp-open-sdk/xtensa-lx106-elf/bin/xtensa-lx106-elf-gcc together with other binaries like the loader.... . So please check the structure of the file system.

[lambu0815]

That was it. I had found another xtensa-lx106-elf-gcc package for arch and was trying to use it (https://aur.archlinux.org/packages/xten ... f-gcc-bin/). Works with esp-open-sdk. Thank you.

[lambu0815]

However the code will not run on XBee3. "incompatible .mpy file". Too bad.