linux-kernel - [PATCH 07/18] perf tools: include _

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Message-Id: <1347407590-30960-8-git-send-email-acme@infradead.org>
Date:	Tue, 11 Sep 2012 20:52:59 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Irina Tirdea <irina.tirdea@...il.com>,
	Irina Tirdea <irina.tirdea@...el.com>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...dmis.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 07/18] perf tools: include __WORDSIZE definition

From: Irina Tirdea <irina.tirdea@...il.com>

__WORDSIZE is GLibC-specific and is not defined on all systems or glibc
versions (e.g. Android's bionic does not define it).

In file included from util/include/linux/bitmap.h:5:0,
                 from util/header.h:10,
                 from util/session.h:6,
                 from util/build-id.h:4,
                 from util/annotate.c:11:
util/include/linux/bitops.h: In function 'set_bit':
util/include/linux/bitops.h:25:12: error:
'__WORDSIZE' undeclared (first use in this function)
util/include/linux/bitops.h:25:12: note:
each undeclared identifier is reported only once for each function it appears in
util/include/linux/bitops.h:23:51: error:
parameter 'addr' set but not used [-Werror=unused-but-set-parameter]
util/include/linux/bitops.h: In function 'clear_bit':
util/include/linux/bitops.h:30:12: error:
'__WORDSIZE' undeclared (first use in this function)
util/include/linux/bitops.h:28:53: error:
parameter 'addr' set but not used [-Werror=unused-but-set-parameter]
In file included from util/header.h:10:0,
                 from util/session.h:6,
                 from util/build-id.h:4,
                 from util/annotate.c:11:
util/include/linux/bitmap.h: In function 'bitmap_zero':
util/include/linux/bitmap.h:22:6: error:
'__WORDSIZE' undeclared (first use in this function)

Defining __WORDSIZE in perf's headers if it is not already defined.

Suggested-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Suggested-by: Pekka Enberg <penberg@...nel.org>
Signed-off-by: Irina Tirdea <irina.tirdea@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Irina Tirdea <irina.tirdea@...el.com>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Steven Rostedt <rostedt@...dmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-4-git-send-email-irina.tirdea@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/include/linux/bitops.h |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 587a230..a55d8cf 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -5,6 +5,10 @@
 #include <linux/compiler.h>
 #include <asm/hweight.h>
 
+#ifndef __WORDSIZE
+#define __WORDSIZE (__SIZEOF_LONG__ * 8)
+#endif
+
 #define BITS_PER_LONG __WORDSIZE
 #define BITS_PER_BYTE           8
 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
-- 
1.7.9.2.358.g22243

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