From: Harish Sadineni <[email protected]> Enabling the Rust in-kernel feature pulls in clang-native as a dependency for the kernel build. During the perf build, the presence of clang causes all BUILD_BPF_SKEL dependency checks to succeed, which makes perf attempt to build bpftool as part of its build process and make build to fail.
Previously, When Rust support was not enabled, BUILD_BPF_SKEL is set 0 due to missing clang dependency. The perf recipe does not currently provide/support the required bpftool build environment, resulting in build failures such as: Error: | make[3]: *** ../bpf/bpftool: No such file or directory. Stop. As a workaround currently disabling BUILD_BPF_SKEL by default to make perf to build. Signed-off-by: Harish Sadineni <[email protected]> --- meta/recipes-kernel/perf/perf.bb | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb index c3ef25fd99..e3e5d55e39 100644 --- a/meta/recipes-kernel/perf/perf.bb +++ b/meta/recipes-kernel/perf/perf.bb @@ -438,3 +438,9 @@ perf_fix_sources () { fi done } + +# Disable BUILD_BPF_SKEL by default. +# Rust in kernel support pulls in clang-native, which satisfies the +# BUILD_BPF_SKEL dependency checks and causes perf to attempt +# building bpftool, resulting in a build failure. +PACKAGECONFIG[bpf-skel] = ",BUILD_BPF_SKEL=0" -- 2.49.0
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