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Tue Oct 9 03:12:55 EDT 2018 · https://mail.python.org/pipermail/python-dev/2018-October/155463.html

On Mon, Oct 8, 2018 at 11:59 PM Ray Donnelly <mingw.android at gmail.com>
wrote:

> Hi,
>
> We ran into an issue on the Anaconda Distribution recently where we
> added libarchive-c to conda-build (so we can un-compress more source
> archive formats than tarfile supports) and everything was good a few
> hours, until it hit various CI systems where objdump is not installed.
>
> I was a bit surprised by this dependency and wondered if there'd be
> interest in a fallback path that inspects the elf with some fairly
> simple python code to determine the soname instead? I have code that
> works already - though it could do with and a tidy up - and has been
> tested on a variety of architectures. Would CPython be interested in
> an attempt to upstream this?
>
> Is it documented anywhere that objdump is needed to load some
> extension modules on Linux?
>

Wow, that looks like gross code buried within ctypes.util (which
libarchive-c uses) that calls various platforms versions of objdump or
equivalent.  File a bugs.python.org issue and submit a PR, native ELF
header reading code for this makes sense.

-G

>
>
> Best regards,
>
> Ray Donnelly,
> Anaconda Inc,
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[Python-Dev] Use of objdump within ctypes _get_soname()