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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-13 10:19:12 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-01-16 17:49:29 -0300 |
| commit | 25cd480e447eba47b8bdad1c9f95cadc074abc75 (patch) | |
| tree | 36e2194788f9f907eaf7a7afeedf45ae3177d0e0 /tools/perf/util | |
| parent | perf machine: Fix __machine__findnew_thread() error path (diff) | |
| download | linux-dev-25cd480e447eba47b8bdad1c9f95cadc074abc75.tar.xz linux-dev-25cd480e447eba47b8bdad1c9f95cadc074abc75.zip | |
tools: Remove bitops/hweight usage of bits in tools/perf
We need to use lib/hweight.c for that, just like we do for lib/rbtree.c,
so tools need to link hweight.o. For now do it directly, but we need to
have a tools/lib/lk.a or .so that collects these goodies...
Reported-by: Jan Beulich <JBeulich@suse.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-a1e91dx3apzqw5kbdt7ut21s@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/hweight.c | 31 | ||||
| -rw-r--r-- | tools/perf/util/include/asm/hweight.h | 8 | ||||
| -rw-r--r-- | tools/perf/util/python-ext-sources | 2 |
3 files changed, 1 insertions, 40 deletions
diff --git a/tools/perf/util/hweight.c b/tools/perf/util/hweight.c deleted file mode 100644 index 5c1d0d099f0d..000000000000 --- a/tools/perf/util/hweight.c +++ /dev/null @@ -1,31 +0,0 @@ -#include <linux/bitops.h> - -/** - * hweightN - returns the hamming weight of a N-bit word - * @x: the word to weigh - * - * The Hamming Weight of a number is the total number of bits set in it. - */ - -unsigned int hweight32(unsigned int w) -{ - unsigned int res = w - ((w >> 1) & 0x55555555); - res = (res & 0x33333333) + ((res >> 2) & 0x33333333); - res = (res + (res >> 4)) & 0x0F0F0F0F; - res = res + (res >> 8); - return (res + (res >> 16)) & 0x000000FF; -} - -unsigned long hweight64(__u64 w) -{ -#if BITS_PER_LONG == 32 - return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w); -#elif BITS_PER_LONG == 64 - __u64 res = w - ((w >> 1) & 0x5555555555555555ul); - res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul); - res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful; - res = res + (res >> 8); - res = res + (res >> 16); - return (res + (res >> 32)) & 0x00000000000000FFul; -#endif -} diff --git a/tools/perf/util/include/asm/hweight.h b/tools/perf/util/include/asm/hweight.h deleted file mode 100644 index 36cf26d434a5..000000000000 --- a/tools/perf/util/include/asm/hweight.h +++ /dev/null @@ -1,8 +0,0 @@ -#ifndef PERF_HWEIGHT_H -#define PERF_HWEIGHT_H - -#include <linux/types.h> -unsigned int hweight32(unsigned int w); -unsigned long hweight64(__u64 w); - -#endif /* PERF_HWEIGHT_H */ diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources index 16a475a7d492..6c6a6953fa93 100644 --- a/tools/perf/util/python-ext-sources +++ b/tools/perf/util/python-ext-sources @@ -10,7 +10,7 @@ util/ctype.c util/evlist.c util/evsel.c util/cpumap.c -util/hweight.c +../../lib/hweight.c util/thread_map.c util/util.c util/xyarray.c |