Messages in this thread | | | From | Irina Tirdea <> | Date | Sun, 9 Sep 2012 01:19:50 +0300 | Subject | Re: [PATCH v2 03/12] perf tools: include __WORDSIZE definition |
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>> +#ifndef __WORDSIZE >> +#if defined(__x86_64__) >> +# define __WORDSIZE 64 >> +#endif >> +#if defined(__i386__) || defined(__arm__) >> +# define __WORDSIZE 32 >> +#endif >> +#endif > > Why not use "sizeof(unsigned long) * 8" ?
I tried to do it this, but the compilation crashes because this value is tested in an #if:
target C: libperf <= tools/perf/util/annotate.c In file included from tools/perf/util/include/linux/bitmap.h:5:0, from tools/perf/util/header.h:10, from tools/perf/util/session.h:6, from tools/perf/util/build-id.h:4, from tools/perf/util/annotate.c:11: tools/perf/util/include/linux/bitops.h: In function '__ffs': tools/perf/util/include/linux/bitops.h:62:5: warning: "sizeof" is not defined [-Wundef] tools/perf/util/include/linux/bitops.h:62:5: error: missing binary operator before token "("
Thanks, Irina
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