Re: [PATCH v2 0/3] bpftool: Fix the static linkage failure

[Arnaldo Carvalho de Melo <acme@kernel.org>]

On Wed, Dec 11, 2024 at 09:31:11AM +0000, Leo Yan wrote:
> This series follows up on the discussion in [1] for fixing the static
> linkage issue in bpftool.
> 
> Patch 01 introduces a new feature for libelf-zstd.  If this feature
> is detected, it means the zstd lib is required by libelf.
> 
> Patch 02 is a minor improvement for linking the zstd lib in the perf.
> 
> Patch 03 fixes the static build failure by linking the zstd lib when
> the feature-libelf-zstd is detected.
> 
> [1] https://lore.kernel.org/linux-perf-users/Z1H9-9xrWM4FBbNI@mini-arch/T/#m2300b127424e9e2ace7da497a20d88534eb6866f

So, this was originally reported as a perf build failure when trying a
static build, so something not so common, no urgency, I guess, but it
involves a tools/perf/bpftool/Makefile change, I think I can process
this as I'll then test it in the many build containers for old distros I
have, ok?

- Arnaldo
 
> 
> Leo Yan (3):
>   tools build: Add feature test for libelf with ZSTD
>   perf: build: Minor improvement for linking libzstd
>   bpftool: Link zstd lib required by libelf
> 
>  tools/bpf/bpftool/Makefile             | 8 ++++++++
>  tools/build/Makefile.feature           | 1 +
>  tools/build/feature/Makefile           | 4 ++++
>  tools/build/feature/test-all.c         | 4 ++++
>  tools/build/feature/test-libelf-zstd.c | 9 +++++++++
>  tools/perf/Makefile.config             | 8 +++++++-
>  6 files changed, 33 insertions(+), 1 deletion(-)
>  create mode 100644 tools/build/feature/test-libelf-zstd.c
> 
> -- 
> 2.34.1