On Fri, Nov 15, 2019 at 01:23:09PM +0100, Miroslav Suchý wrote:
> Dne 15. 11. 19 v 10:21 Victor Stinner napsal(a):
> > I'm not sure if we need a Fedora change just for a compiler flag. Again, 
> > the only drawback is that we will no longer be able to override a symbol 
> > using LD_PRELOAD. Honestly, I never did that. I don't see any use case for 
> > that. But I used LD_PRELOAD on the libc multiple times to mock the system 
> > clock for example.
> > 
> > If someone really needs LD_PRELOAD, it's quite easy to build a custom 
> > Python without -fno-semantic-interposition.
> 
> Mock's Nosync plugin use LD_PRELOAD:
> https://github.com/rpm-software-management/mock/wiki/Feature-nosync

IIUC mock would not be affected by this change.

The LD_PRELOAD limitation described applies to symbols that are in
the libpython.so library.

Those docs suggest mock is replacing the fsync() API in glibc with its
LD_PRELOAD, so that should continue to work as normal.

Regards,
Daniel
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