Re: [PATCH v1 0/5] Enable BPF skeletons by default

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Em Mon, Sep 18, 2023 at 04:40:15PM -0700, Namhyung Kim escreveu:
> On Thu, Sep 14, 2023 at 2:20 PM Ian Rogers <irogers@xxxxxxxxxx> wrote:
> >
> > Enable BPF skeletons by default but warn don't fail if they can't be
> > supported. This was the intended behavior for Linux 6.4 but it caused
> > an issue captured in this thread:
> > https://lore.kernel.org/lkml/20230503211801.897735-1-acme@xxxxxxxxxx/
> >
> > This issue isn't repeated here as the previous issue related to
> > generating vmlinux.h, which is no longer performed by default as a
> > checked-in vmlinux.h is used instead.
> >
> > Unlike with those changes, the BUILD_BPF_SKEL is kept and setting it
> > to 0 disables BPF skeletons. Also, rather than fail the build due to a
> > missed dependency, dependencies are checked and BPF skeletons disabled
> > if they aren't present.
> >
> > Some related commits:
> > b7a2d774c9c5 perf build: Add ability to build with a generated vmlinux.h
> > a887466562b4 perf bpf skels: Stop using vmlinux.h generated from BTF, use subset of used structs + CO-RE
> > a2af0f6b8ef7 perf build: Add system include paths to BPF builds
> > 5be6cecda080 perf bpf skels: Make vmlinux.h use bpf.h and perf_event.h in source directory
> > 9a2d5178b9d5 Revert "perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL"
> > a887466562b4 perf bpf skels: Stop using vmlinux.h generated from BTF, use subset of used structs + CO-RE
> > 1d7966547e11 perf build: Add warning for when vmlinux.h generation fails
> > a980755beb5a perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL
> >
> > Ian Rogers (5):
> >   perf version: Add status of bpf skeletons
> >   perf build: Default BUILD_BPF_SKEL, warn/disable for missing deps
> >   perf test: Update build test for changed BPF skeleton defaults
> >   perf test: Ensure EXTRA_TESTS is covered in build test
> >   perf test: Detect off-cpu support from build options
> 
> Tested-by: Namhyung Kim <namhyung@xxxxxxxxxx>

Is this verbose by default now? Maybe its something on my side, but I
noticed a higher level of verbosity, can you check?

- Arnaldo




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