Messages in this thread | | | From | Ian Rogers <> | Date | Wed, 8 May 2024 13:44:52 -0700 | Subject | Re: Makefile.perf:1149: *** Missing bpftool input for generating vmlinux.h. Stop. |
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On Wed, May 8, 2024 at 12:39 AM Ingo Molnar <mingo@kernel.org> wrote: > > > So I've been getting this perf build failure for some time: > > kepler:~/tip/tools/perf> make clean > Makefile.perf:1149: *** Missing bpftool input for generating vmlinux.h. Stop. > make: *** [Makefile:90: clean] Error 2 > > ... but if I clone a new repository, it works fine, until a point. > > 'make clean' doesn't work - and 'make mrproper' in the main kernel > directory doesn't clean up properly. > > Only if I do a brute-force: > > rm -rf tools/ > git checkout HEAD -f > > does it get resolved. > > The failure condition triggers if I Ctrl-C the following build a couple of > times, without it being finished: > > > cd tools/perf; make clean install > ... > > LD util/perf-in.o > LD perf-in.o > CC pmu-events/pmu-events.o > ^Cmake[3]: *** [pmu-events/Build:43: pmu-events/pmu-events.o] Interrupt > make[2]: *** [Makefile.perf:709: pmu-events/pmu-events-in.o] Interrupt > make[1]: *** [Makefile.perf:264: sub-make] Interrupt > make: *** [Makefile:113: install] Interrupt > kepler:~/tip> perfi > Makefile.perf:1149: *** Missing bpftool input for generating vmlinux.h. Stop. > make: *** [Makefile:90: clean] Error 2
We have a checked-in vmlinux.h: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/util/bpf_skel/vmlinux/vmlinux.h?h=perf-tools-next so this shouldn't have been a problem for a while. bpftool is no longer on that line: https://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools-next.git/tree/tools/perf/Makefile.perf?h=perf-tools-next#n1149 so I suspect if you use a newer tree then things will work.
Thanks, Ian
> Thanks, > > Ingo
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