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perf build: Move libsymbol dependency out of prepare step

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The prepare step is a large serialization point before parallel
sub-makes build the perf tool. The libsymbol headers are used in the
bench and util libraries. Move the libsymbol dependency out of the
prepare step and into the dependencies for those targets to avoid it
being a source of serialization in the prepare step.

Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Assisted-by: Gemini:gemini-3.1-pro-preview
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: James Clark <james.clark@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Chartre <alexandre.chartre@oracle.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Ankur Arora <ankur.a.arora@oracle.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Costa Shulyupin <costa.shul@redhat.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: David Sterba <dsterba@suse.com>
Cc: Dmitrii Dolgov <9erthalion6@gmail.com>
Cc: Eduard Zingerman <eddyz87@gmail.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Markus Mayer <mmayer@broadcom.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <qmo@kernel.org>
Cc: Ricky Ringler <ricky.ringler@proton.me>
Cc: Song Liu <song@kernel.org>
Cc: Swapnil Sapkal <swapnil.sapkal@amd.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Tomas Glozar <tglozar@redhat.com>
Cc: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers 2026-05-18 08:46:32 -07:00 committed by Arnaldo Carvalho de Melo
parent 32969ef6e3
commit 96e808e567
1 changed files with 3 additions and 4 deletions
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7
tools/perf/Makefile.perf
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@ -558,7 +558,7 @@ $(LIBPMU_EVENTS): $(LIBPMU_EVENTS_IN)
# The $(LIBPERF_UTIL) dependency is to ensure bpftool and vmlinux.h
# aren't racily built for bench/bpf_skel/bench_uprobe.bpf.c
$(LIBPERF_BENCH_IN): FORCE prepare | $(LIBPERF_UTIL)
$(LIBPERF_BENCH_IN): FORCE prepare $(LIBSYMBOL) | $(LIBPERF_UTIL)
$(Q)$(MAKE) $(build)=perf-bench
$(LIBPERF_BENCH): $(LIBPERF_BENCH_IN)
@ -576,7 +576,7 @@ $(LIBPERF_UI_IN): FORCE prepare
$(LIBPERF_UI): $(LIBPERF_UI_IN)
$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $<
$(LIBPERF_UTIL_IN): FORCE prepare
$(LIBPERF_UTIL_IN): FORCE prepare $(LIBSYMBOL)
$(Q)$(MAKE) $(build)=perf-util
$(LIBPERF_UTIL): $(LIBPERF_UTIL_IN)
@ -637,8 +637,7 @@ prepare: $(OUTPUT)PERF-VERSION-FILE \
bpf-skel-prepare \
$(LIBAPI) \
$(LIBPERF) \
$(LIBSUBCMD) \
$(LIBSYMBOL)
$(LIBSUBCMD)
ifdef LIBBPF_STATIC
prepare: $(LIBBPF)