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From: tip-bot for Ingo Molnar <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: acme@redhat.com, linux-kernel@vger.kernel.org, hpa@zytor.com,
	mingo@kernel.org, a.p.zijlstra@chello.nl,
	acme@ghostprotocols.net, namhyung@kernel.org, jolsa@redhat.com,
	dsahern@gmail.com, tglx@linutronix.de
Subject: [tip:perf/core] tools/perf/build: Fix non-existent build directory handling
Date: Mon, 14 Oct 2013 22:33:54 -0700	[thread overview]
Message-ID: <tip-3fb66335e13ef7426affe9efa48c08857202c1cb@git.kernel.org> (raw)
In-Reply-To: <20131009150023.GA10167@gmail.com>

Commit-ID:  3fb66335e13ef7426affe9efa48c08857202c1cb
Gitweb:     http://git.kernel.org/tip/3fb66335e13ef7426affe9efa48c08857202c1cb
Author:     Ingo Molnar <mingo@kernel.org>
AuthorDate: Wed, 9 Oct 2013 17:00:23 +0200
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 14 Oct 2013 10:29:05 -0300

tools/perf/build: Fix non-existent build directory handling

Arnaldo reported that non-existent build directories were not
recognized  properly. The reason is readlink failure causing 'O'
to become empty.

Solve it by passing through the 'O' variable unmodified if
readlink fails.

Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131009150023.GA10167@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 5aa3d04..9147044 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -34,7 +34,7 @@ endif
 # Only pass canonical directory names as the output directory:
 #
 ifneq ($(O),)
-  FULL_O := $(shell readlink -f $(O))
+  FULL_O := $(shell readlink -f $(O) || echo $(O))
 endif
 
 define print_msg

  reply	other threads:[~2013-10-15  5:34 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-09  7:01 [GIT PULL] tools/perf/build: Speed up the perf build system Ingo Molnar
2013-10-09 14:38 ` Arnaldo Carvalho de Melo
2013-10-09 14:51   ` Ingo Molnar
2013-10-09 15:00     ` [PATCH] tools/perf/build: Fix non-existent build directory handling Ingo Molnar
2013-10-15  5:33       ` tip-bot for Ingo Molnar [this message]
2013-10-09 19:16     ` [GIT PULL] tools/perf/build: Speed up the perf build system Arnaldo Carvalho de Melo
2013-10-09 19:38       ` Arnaldo Carvalho de Melo
2013-10-10  5:42       ` [PATCH] tools/perf/build: Fix redirection printouts Ingo Molnar
2013-10-15  5:31         ` [tip:perf/core] perf tools: " tip-bot for Ingo Molnar
2013-10-10  6:10       ` [PATCH] tools/perf/build: Pass through DEBUG parameter Ingo Molnar
2013-10-10 19:26     ` [GIT PULL] tools/perf/build: Speed up the perf build system Arnaldo Carvalho de Melo
2013-10-10 19:50       ` Arnaldo Carvalho de Melo
2013-10-10 20:06         ` Arnaldo Carvalho de Melo
2013-10-10 22:13           ` Jiri Olsa
2013-10-10 22:29             ` David Ahern

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