Messages in this thread | | | Date | Thu, 13 Sep 2018 15:32:40 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | [RFC/fix] Re: libbpf build broken on musl libc (Alpine Linux) |
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Em Tue, Sep 11, 2018 at 02:24:53PM -0700, Alexei Starovoitov escreveu: > On Tue, Sep 11, 2018 at 09:15:43AM -0300, Arnaldo Carvalho de Melo wrote: > > Em Tue, Sep 11, 2018 at 12:22:18PM +0200, Jakub Kicinski escreveu: > > > On Mon, 10 Sep 2018 14:29:03 -0300, Arnaldo Carvalho de Melo wrote: > > > > After lunch I'll work on a patch to fix this, > > > Any luck?
> > Well, we need to apply the patch below and make tools/lib/str_error_r.c > > live in a library that libbpf and perf is linked to.
> do you want us to take the patch or you're applying it yourself?
Please do some testing with my perf/libbpf+str_error_r branch, it has two patches to get this fixed, the one I sent and a prep one making libbpf link against libapi.
[acme@jouet perf]$ git log --oneline -2 a7ab924b7fec (HEAD -> perf/urgent, acme.korg/perf/libbpf+str_error_r) tools lib bpf: Use str_error_r() to fix the build in Alpine Linux fb4a79e04c2b tools lib bpf: Build and link to tools/lib/api/ [acme@jouet perf]$
I did a lot of tests to make sure tools/perf, tools/lib/bpf, tools/bpf/bpftools and the bpf selftests all build as expected, with OUTPUT= and in place.
The csets have further comments about tricky aspects of this.
- Arnaldo
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