diff options
| author | Ian Rogers <irogers@google.com> | 2023-03-10 22:57:42 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-03-14 08:29:46 -0300 |
| commit | a980755beb5aca9002e1c95ba519b83a44242b5b (patch) | |
| tree | 296822dd5a9b4c5244154acc411bdc0e8de0a2fc /tools/perf/Makefile.perf | |
| parent | 7a9b223ca0761a7c7c72e569b86b84a907aa0f92 (diff) | |
perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL
BPF skeleton support is now key to a number of perf features. Rather
than making it so that BPF support must be enabled for the build, make
this the default and error if the build lacks a clang and libbpf that
are sufficient. To avoid the error and build without BPF skeletons the
NO_BPF_SKEL=1 flag can be used. Add a build-options flag to 'perf
version' to enable detection of the BPF skeleton support and use this
in the offcpu shell test.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Pavithra Gurushankar <gpavithrasha@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <quentin@isovalent.com>
Cc: Roberto Sassu <roberto.sassu@huawei.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Tom Rix <trix@redhat.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20230311065753.3012826-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.perf')
| -rw-r--r-- | tools/perf/Makefile.perf | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 2fcee585b225..283ee4f56234 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -126,7 +126,7 @@ include ../scripts/utilities.mak # # Define NO_LIBDEBUGINFOD if you do not want support debuginfod # -# Define BUILD_BPF_SKEL to enable BPF skeletons +# Define NO_BPF_SKEL to disable BPF skeletons # # As per kernel Makefile, avoid funny character set dependencies @@ -1055,7 +1055,7 @@ SKELETONS += $(SKEL_OUT)/kwork_trace.skel.h $(SKEL_TMP_OUT) $(LIBAPI_OUTPUT) $(LIBBPF_OUTPUT) $(LIBPERF_OUTPUT) $(LIBSUBCMD_OUTPUT) $(LIBSYMBOL_OUTPUT): $(Q)$(MKDIR) -p $@ -ifdef BUILD_BPF_SKEL +ifndef NO_BPF_SKEL BPFTOOL := $(SKEL_TMP_OUT)/bootstrap/bpftool BPF_INCLUDE := -I$(SKEL_TMP_OUT)/.. -I$(LIBBPF_INCLUDE) @@ -1088,11 +1088,11 @@ bpf-skel: $(SKELETONS) .PRECIOUS: $(SKEL_TMP_OUT)/%.bpf.o -else # BUILD_BPF_SKEL +else # NO_BPF_SKEL bpf-skel: -endif # BUILD_BPF_SKEL +endif # NO_BPF_SKEL bpf-skel-clean: $(call QUIET_CLEAN, bpf-skel) $(RM) -r $(SKEL_TMP_OUT) $(SKELETONS) |