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Marchesi" , David Faust , Cupertino Miranda Cc: Peter Zijlstra , Ingo Molnar , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Andrii Nakryiko , Eduard Zingerman , Yonghong Song , linux-perf-users@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Currently the perf build requires clang (>= 12.0.1) to compile BPF skeleton programs (.bpf.c -> .bpf.o). bpf-gcc (>= 14.0.0) also supports BPF CO-RE and BTF generation and is already supported in tools/testing/selftests/bpf/Makefile. This series updates the perf build to support both clang and bpf-gcc: - Patch 1 updates Makefile.config, Makefile.perf, and bpf_skel.mak to prefer bpf-gcc when building perf with GCC (CC_NO_CLANG=1) and clang when building with Clang/LLVM (CC_NO_CLANG=0), while respecting explicit BPF_GCC=... or CLANG=... command-line overrides and falling back to whichever compiler is available. - Patch 2 adds make_bpf_skel_clang and make_bpf_skel_bpf_gcc build-test targets to tools/perf/tests/make and verifies with 'perf check -q feature bpf_skeletons' that BPF skeleton support is enabled (or disabled for make_no_bpf_skel) as expected. Ian Rogers (2): perf build: Support building BPF skeletons with bpf-gcc perf test make: Add BPF skeleton build tests for clang and bpf-gcc tools/perf/Makefile.config | 81 +++++++++++++++++++++++++++------- tools/perf/Makefile.perf | 8 +++- tools/perf/bpf_skel.mak | 36 ++++++++++----- tools/perf/tests/make | 29 ++++++++++++ tools/scripts/Makefile.include | 1 + 5 files changed, 126 insertions(+), 29 deletions(-) -- 2.56.0.385.gd3acb90ef8-goog