* Jiri Olsa <jo...@redhat.com> wrote:
> On Tue, Nov 24, 2015 at 09:10:42AM +0100, Ingo Molnar wrote:
>
> SNIP
>
> >
> > GEN common-cmds.h
> > CC perf-read-vdso32
> > CC perf-read-vdsox32
> > CC ui/gtk/browser.o
> > CC ui/gtk/hists.o
> > CC ui/gtk/setup.o
> > CC ui/gtk/util.o
> > CC ui/gtk/helpline.o
> > CC ui/gtk/progress.o
> > CC ui/gtk/annotate.o
> > CC util/abspath.o
> > CC fd/array.o
> >
> > Auto-detecting system features:
> > CC event-parse.o
> > ... libelf: [ on ]
> > PERF_VERSION = 4.4.rc2.g9327ca
> > ... bpf: [ on ]
> >
> > CC util/alias.o
> > CC libbpf.o
> >
> >
> > while normally we'd first do feature detection, then only do the build
> > (knowing
> > which features to build).
>
> the bpf lib is doing its own feature detection, to be able
> to stand alone.. I'll see if we could share detected features
> somehow, so sub builds don't need to do that
>
> >
> > Occasionally it also triggers a build failure:
> >
> > CC plugin_kvm.o
> > CC arch/common.o
> > CC util/db-export.o
> > LD plugin_kmem-in.o
> > fixdep: error opening depfile: ./.plugin_kmem.o.d: No such file or directory
> > /home/mingo/tip/tools/build/Makefile.build:77: recipe for target
> > 'plugin_kmem.o'
> > failed
> > make[3]: *** [plugin_kmem.o] Error 2
> > Makefile:189: recipe for target 'plugin_kmem-in.o' failed
> > make[2]: *** [plugin_kmem-in.o] Error 2
> > Makefile.perf:424: recipe for target 'install-traceevent-plugins' failed
> > make[1]: *** [install-traceevent-plugins] Error 2
> > make[1]: *** Waiting for unfinished jobs....
> >
> > that too seems to be a result of unwanted, over-eager parallelism.
>
> hm, haven't seen that one for long time now ;-) will check
So maybe that's a side effect, because I do:
make clean install
and maybe 'clean' happens in parallel with 'install'?
Thanks,
Ingo
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