Messages in this thread Patch in this message | | | Date | Wed, 28 Dec 2022 01:36:10 +0100 | From | Ahelenia Ziemiańska <> | Subject | [PATCH 2/2] perf python: don't run the linker for clang feature tests |
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This, for me, slightly-more-than-halves the time it takes to run for a in "-mcet" "-fcf-protection" "-fstack-clash-protection" \ "-fstack-protector-strong" "-fno-semantic-interposition" \ "-ffat-lto-objects"; do cc "$a" ../build/feature/test-hello.c -o /dev/null; done from just over 600ms.
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> --- tools/perf/util/setup.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py index 58239e1cdb2a..400c99cd7734 100644 --- a/tools/perf/util/setup.py +++ b/tools/perf/util/setup.py @@ -16,7 +16,7 @@ cc_is_clang = b"clang version" in Popen([cc, "-v"], stderr=PIPE).stderr.readline src_feature_tests = getenv('srctree') + '/tools/build/feature' def clang_has_option(option): - cc_output = Popen([cc, cc_options + option + "-o /dev/null", path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines() + cc_output = Popen([cc, cc_options + option + "-c -o /dev/null", path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines() return [o for o in cc_output if ((b"unknown argument" in o) or (b"is not supported" in o))] == [ ] if cc_is_clang: -- 2.30.2[unhandled content-type:application/pgp-signature] | |