linux-kernel - [PATCH][v2] perf tools, powerpc: Fix compile warnings in tests/attr.c

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Date:	Wed, 23 Jan 2013 21:44:39 -0800
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Jiri Olsa <jolsa@...hat.com>, Anton Blanchard <anton@....ibm.com>,
	ellerman@....ibm.com, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH][v2] perf tools, powerpc: Fix compile warnings in
 tests/attr.c


[PATCH][v2] perf tools, powerpc: Fix compile warnings in tests/attr.c

We print several '__u64' quantities using '%llu'. On powerpc, we by
default include '<asm-generic/int-l64.h> which results in __u64 being
an unsigned long. This causes compile warnings which are treated as
errors due to '-Werror'.

By defining __SANE_USERSPACE_TYPES__ we include <asm-generic/int-ll64.h>
and define __u64 as unsigned long long.

Changelog[v2]:
	[Michael Ellerman] Use __SANE_USERSPACE_TYPES__ and avoid PRIu64
	format specifier - which as Jiri Olsa pointed out, breaks on x86-64.

Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
---
 tools/perf/tests/attr.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c
index f61dd3f..bdcceb8 100644
--- a/tools/perf/tests/attr.c
+++ b/tools/perf/tests/attr.c
@@ -19,6 +19,11 @@
  * permissions. All the event text files are stored there.
  */
 
+/*
+ * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
+ * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.
+ */
+#define __SANE_USERSPACE_TYPES__
 #include <stdlib.h>
 #include <stdio.h>
 #include <inttypes.h>
-- 
1.7.1

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