On Wed, 16 May 2018 18:03:34 +0200
Filip Banák <filip.banak...@gmail.com> wrote:

> When i execute it like this
> gdb -ex r --args python3 setup.py build
> then I get https://pastebin.com/1H4biM12
> 
> Almost certain something is wrong with libffi.


Right, libffi has been built for a different CPU model. To see the
offending instruction in gdb after the above error, after gdb reports:

:Program received signal SIGILL, Illegal instruction.
:0x00007ffff5fddce4 in ffi_closure_alloc () from /usr/lib/libffi.so.6

enter this command at the gdb prompt:

(gdb) display/i $pc

and tell us what gdb responds with.



  Cheers,

  Mike Shell

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