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| author | Song Liu <songliubraving@fb.com> | 2020-12-30 00:42:13 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-01-15 21:49:07 +0300 |
| commit | fbcdaa1908e8f61aa56c71a1db9a9deb72110a9d (patch) | |
| tree | dc0b292571998493cab820ebd11650e66094e382 /tools/perf/Makefile.config | |
| parent | d2032d45101670be3a0fe221c815145a41ae2672 (diff) | |
| download | linux-fbcdaa1908e8f61aa56c71a1db9a9deb72110a9d.tar.xz | |
perf build: Support build BPF skeletons with perf
BPF programs are useful in perf to profile BPF programs.
BPF skeleton is by far the easiest way to write BPF tools. Enable
building BPF skeletons in util/bpf_skel. A dummy bpf skeleton is added.
More bpf skeletons will be added for different use cases.
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@fb.com
Link: http://lore.kernel.org/lkml/20201229214214.3413833-3-songliubraving@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index ce8516e4de34..d8e59d31399a 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -621,6 +621,15 @@ ifndef NO_LIBBPF endif endif +ifdef BUILD_BPF_SKEL + $(call feature_check,clang-bpf-co-re) + ifeq ($(feature-clang-bpf-co-re), 0) + dummy := $(error Error: clang too old. Please install recent clang) + endif + $(call detected,CONFIG_PERF_BPF_SKEL) + CFLAGS += -DHAVE_BPF_SKEL +endif + dwarf-post-unwind := 1 dwarf-post-unwind-text := BUG |