Re: [Qemu-devel] [PATCH] .travis.yml: basic compile and check recipes

[Stefan Hajnoczi <stefanha@gmail.com>]

On Wed, Sep 25, 2013 at 11:00:05AM +0100, Alex Bennée wrote:
> 
> peter.maydell@linaro.org writes:
> 
> > On 25 September 2013 01:31,  <alex.bennee@linaro.org> wrote:
> >> +    # This disabled make check for the ftrace backend which needs more setting up
> >> +    # Currently broken on 12.04 due to mis-packaged liburcu and changed API, will be pulled.
> >> +    #- env: TARGETS=i386-softmmu,x86_64-softmmu
> >> +    #       EXTRA_PKGS="liblttng-ust-dev liburcu-dev"
> >> +    #       EXTRA_CONFIG="--enable-trace-backend=ust"
> >
> > Does our configure identify the busted library and refuse to configure with
> > this config? It probably ought to.
> 
> It's a mess. It probably still works on some set-ups but in discussion
> with Stefan on IRC it looks like it's regressed on most modern set-ups.
> The fundamental issue is lttng's lack of stable API. I hunted around a
> bit trying to get it working but realised the script needs fixing up as
> well so gave up.
> 
> Really ust just needs to be ripped out for now unless someone else wants
> to dig into to supporting multiple versions painlessly.

I sent a patch to drop ust.  Either someone will show up who is willing
to fix it or we'll remove it since it has few (zero?) users.

Stefan