From: Kusanagi Kouichi <slash@ac.auone-net.jp>
Date: Wed, 18 Aug 2010 16:32:37 +0000 (-0300)
Subject: perf tools: Fix build error on read only source.
X-Git-Tag: v2.6.36-rc2~33^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ecafda60e88031bcc4271c446f984ee883d69ea8;p=pandora-kernel.git

perf tools: Fix build error on read only source.

Parts of the build process were generating files outside the specified
O= directory, causing the build to fail on systems where the sources are
in a read only file system.

Fix it by using $(OUTPUT) on these locations.

Also check that $(OUTPUT) actually exists, just like the top level
kernel Makefile does. Otherwise the failure message emitted is
completely misleading.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20100817140841.0859362C03A@msa106.auone-net.jp>
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

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