linux-kernel - [PATCH v1 2/5] perf pmu-events: Change dependencies for empty-pmu-events.c test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240805194424.597244-2-irogers@google.com>
Date: Mon,  5 Aug 2024 12:44:21 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, John Garry <john.g.garry@...cle.com>, 
	Will Deacon <will@...nel.org>, James Clark <james.clark@...aro.org>, 
	Mike Leach <mike.leach@...aro.org>, Leo Yan <leo.yan@...ux.dev>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Samuel Holland <samuel.holland@...ive.com>, 
	Charles Ci-Jyun Wu <dminus@...estech.com>, Locus Wei-Han Chen <locus84@...estech.com>, 
	Atish Patra <atishp@...osinc.com>, Ji Sheng Teoh <jisheng.teoh@...rfivetech.com>, 
	Inochi Amaoto <inochiama@...look.com>, Jing Zhang <renyu.zj@...ux.alibaba.com>, 
	Xu Yang <xu.yang_2@....com>, Sandipan Das <sandipan.das@....com>, 
	Guilherme Amadio <amadio@...too.org>, Changbin Du <changbin.du@...wei.com>, 
	linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-riscv@...ts.infradead.org, 
	vincent.chen@...ive.com, greentime.hu@...ive.com, 
	Eric Lin <eric.lin@...ive.com>
Subject: [PATCH v1 2/5] perf pmu-events: Change dependencies for
 empty-pmu-events.c test

Switch from $? (all the prerequisites that are newer than the target)
to $^ (all the prerequisites) as touching jevents.py will mean that
empty-pmu-events.c won't be passed to the diff command breaking the
build.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/pmu-events/Build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/pmu-events/Build b/tools/perf/pmu-events/Build
index c3fa43c49706..d941bc9d16e9 100644
--- a/tools/perf/pmu-events/Build
+++ b/tools/perf/pmu-events/Build
@@ -39,7 +39,7 @@ $(TEST_EMPTY_PMU_EVENTS_C): $(JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(ME
 
 $(EMPTY_PMU_EVENTS_TEST_LOG): $(EMPTY_PMU_EVENTS_C) $(TEST_EMPTY_PMU_EVENTS_C)
 	$(call rule_mkdir)
-	$(Q)$(call echo-cmd,test)diff -u $? 2> $@ || (cat $@ && false)
+	$(Q)$(call echo-cmd,test)diff -u $^ 2> $@ || (cat $@ && false)
 
 $(PMU_EVENTS_C): $(JSON) $(JSON_TEST) $(JEVENTS_PY) $(METRIC_PY) $(METRIC_TEST_LOG) $(EMPTY_PMU_EVENTS_TEST_LOG)
 	$(call rule_mkdir)
-- 
2.46.0.rc2.264.g509ed76dc8-goog