From: tip-bot for Jiri Olsa <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: cjashfor@linux.vnet.ibm.com, alexis.berlemont@gmail.com,
mingo@kernel.org, namhyung@kernel.org, hpa@zytor.com,
bp@alien8.de, jolsa@kernel.org, peterz@infradead.org,
dsahern@gmail.com, linux-kernel@vger.kernel.org,
paulus@samba.org, will.deacon@arm.com, eranian@google.com,
acme@redhat.com, fweisbec@gmail.com, tglx@linutronix.de,
sukadev@linux.vnet.ibm.com
Subject: [tip:perf/core] perf build: Disable make's built-in rules
Date: Wed, 18 Feb 2015 10:32:00 -0800 [thread overview]
Message-ID: <tip-fr54ist3woy7efz6z3m720vb@git.kernel.org> (raw)
Commit-ID: 6dd280cdb8a2cf53deacd6240707ec2f22222b20
Gitweb: http://git.kernel.org/tip/6dd280cdb8a2cf53deacd6240707ec2f22222b20
Author: Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sat, 10 Jan 2015 21:43:32 +0100
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 12 Feb 2015 11:24:46 -0300
perf build: Disable make's built-in rules
We don't use any built-in rules, so we can disable make's checks for
that and build faster.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Cc: Alexis Berlemont <alexis.berlemont@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-fr54ist3woy7efz6z3m720vb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Makefile.perf | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index aa6a504..0a256fe 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -84,6 +84,10 @@ ifneq ($(OUTPUT),)
#$(info Determined 'OUTPUT' to be $(OUTPUT))
endif
+# Do not use make's built-in rules
+# (this improves performance and avoids hard-to-debug behaviour);
+MAKEFLAGS += -r
+
$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
@touch $(OUTPUT)PERF-VERSION-FILE
reply other threads:[~2015-02-18 18:32 UTC|newest]
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