Re: Allowing to run a buildfarm animal under valgrind

On 2016-03-08 08:58:22 -0500, Andrew Dunstan wrote:
> On 03/07/2016 08:39 PM, Andres Freund wrote:
> >Does anybody have a better idea about how to do this?
>
> Why not just create a make target which does this? It could be run after
> 'make' and before 'make check'. I would make it assume valgrind was
> installed and in the path rather than using vg-in-place.

I don't really see how that'd work. make check et al. start postgres via
pg_ctl, so we need to invoke valgrind from there. Additionally I don't
want to just be able to run make check via valgrind, but all contrib
modules et al too, including eventually the replication regression tests
and such.

> If that doesn't work and you want to do something with the buildfarm,
> probably a buildfarm module would be the way to go. We might need to add a
> new module hook to support it, to run right after make(), but that would be
> a one line addition to run_build.pl.

Yea, I think that's what it probably has to be. What I'm decidedly
unhappy with right now is that this seems to require moving make install
up, or manually add a new file for installation. The reason for that is
that if we replace the postgres binary with the wrapper, the original
file obviously doesn't get installed anymore. So it's invoked at it's
original location; which only works if share files are installed in the
correct location.

I do wonder if adding a PGCTLPOSTGRESWRAPPER or something to pg_ctl
would be ok. That'd just supplant calling the postgres binary, making
all this easier.

Andres