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Subject[PATCH v2 03/12] perf tools: include __WORDSIZE definition
Date
From: Irina Tirdea <irina.tirdea@intel.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.

Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
---
tools/perf/util/include/linux/bitops.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 587a230..91779ec 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -5,6 +5,15 @@
#include <linux/compiler.h>
#include <asm/hweight.h>

+#ifndef __WORDSIZE
+#if defined(__x86_64__)
+# define __WORDSIZE 64
+#endif
+#if defined(__i386__) || defined(__arm__)
+# define __WORDSIZE 32
+#endif
+#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))
--
1.7.9.5


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