perf lock contention: Fix compiler builtin detection
authorIan Rogers <irogers@google.com>
Wed, 8 Mar 2023 00:30:20 +0000 (16:30 -0800)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 13 Mar 2023 20:42:27 +0000 (17:42 -0300)
commit17535a33a9c1e4fb52f3db1d72a7ddbe4cea1a2e
tree2a47b6e2889d871d602985f7a7eaca139a6ac3c9
parente5af139715aaf17f25bc50638a7ca67973fce2af
perf lock contention: Fix compiler builtin detection

__has_builtin was passed the macro rather than the actual builtin
feature. The builtin test isn't sufficient and a clang version test
also needs to be performed.

Fixes: 1bece1351c653c3d ("perf lock contention: Support old rw_semaphore type")
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <martin.lau@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230308003020.3653271-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/bpf_skel/lock_contention.bpf.c