From 25cd480e447eba47b8bdad1c9f95cadc074abc75 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Tue, 13 Jan 2015 10:19:12 -0300 Subject: [PATCH] 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 Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Don Zickus Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-a1e91dx3apzqw5kbdt7ut21s@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/include/asm-generic/bitops.h | 2 ++ .../include/asm-generic/bitops/arch_hweight.h | 1 + .../asm-generic/bitops/const_hweight.h | 1 + tools/include/asm-generic/bitops/hweight.h | 7 +++++ tools/include/linux/bitops.h | 7 ++++- tools/perf/MANIFEST | 6 ++++ tools/perf/Makefile.perf | 7 ++++- tools/perf/util/hweight.c | 31 ------------------- tools/perf/util/include/asm/hweight.h | 8 ----- tools/perf/util/python-ext-sources | 2 +- 10 files changed, 30 insertions(+), 42 deletions(-) create mode 100644 tools/include/asm-generic/bitops/arch_hweight.h create mode 100644 tools/include/asm-generic/bitops/const_hweight.h create mode 100644 tools/include/asm-generic/bitops/hweight.h delete mode 100644 tools/perf/util/hweight.c delete mode 100644 tools/perf/util/include/asm/hweight.h diff --git a/tools/include/asm-generic/bitops.h b/tools/include/asm-generic/bitops.h index 6eedba1f7732..653d1bad77de 100644 --- a/tools/include/asm-generic/bitops.h +++ b/tools/include/asm-generic/bitops.h @@ -22,6 +22,8 @@ #error only can be included directly #endif +#include + #include #endif /* __TOOLS_ASM_GENERIC_BITOPS_H */ diff --git a/tools/include/asm-generic/bitops/arch_hweight.h b/tools/include/asm-generic/bitops/arch_hweight.h new file mode 100644 index 000000000000..318bb2b202b0 --- /dev/null +++ b/tools/include/asm-generic/bitops/arch_hweight.h @@ -0,0 +1 @@ +#include "../../../../include/asm-generic/bitops/arch_hweight.h" diff --git a/tools/include/asm-generic/bitops/const_hweight.h b/tools/include/asm-generic/bitops/const_hweight.h new file mode 100644 index 000000000000..0afd644aff83 --- /dev/null +++ b/tools/include/asm-generic/bitops/const_hweight.h @@ -0,0 +1 @@ +#include "../../../../include/asm-generic/bitops/const_hweight.h" diff --git a/tools/include/asm-generic/bitops/hweight.h b/tools/include/asm-generic/bitops/hweight.h new file mode 100644 index 000000000000..290120c01a8e --- /dev/null +++ b/tools/include/asm-generic/bitops/hweight.h @@ -0,0 +1,7 @@ +#ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_ +#define _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_ + +#include +#include + +#endif /* _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_ */ diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h index 26005a15e7e2..5ad9ee1dd7f6 100644 --- a/tools/include/linux/bitops.h +++ b/tools/include/linux/bitops.h @@ -1,9 +1,9 @@ #ifndef _TOOLS_LINUX_BITOPS_H_ #define _TOOLS_LINUX_BITOPS_H_ +#include #include #include -#include #ifndef __WORDSIZE #define __WORDSIZE (__SIZEOF_LONG__ * 8) @@ -19,6 +19,11 @@ #define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32)) #define BITS_TO_BYTES(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE) +extern unsigned int __sw_hweight8(unsigned int w); +extern unsigned int __sw_hweight16(unsigned int w); +extern unsigned int __sw_hweight32(unsigned int w); +extern unsigned long __sw_hweight64(__u64 w); + /* * Include this here because some architectures need generic_ffs/fls in * scope diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST index 83e2887f91a3..fbbfdc39271d 100644 --- a/tools/perf/MANIFEST +++ b/tools/perf/MANIFEST @@ -6,12 +6,15 @@ tools/lib/symbol/kallsyms.c tools/lib/symbol/kallsyms.h tools/lib/util/find_next_bit.c tools/include/asm/bug.h +tools/include/asm-generic/bitops/arch_hweight.h tools/include/asm-generic/bitops/atomic.h +tools/include/asm-generic/bitops/const_hweight.h tools/include/asm-generic/bitops/__ffs.h tools/include/asm-generic/bitops/__fls.h tools/include/asm-generic/bitops/find.h tools/include/asm-generic/bitops/fls64.h tools/include/asm-generic/bitops/fls.h +tools/include/asm-generic/bitops/hweight.h tools/include/asm-generic/bitops.h tools/include/linux/bitops.h tools/include/linux/compiler.h @@ -19,6 +22,8 @@ tools/include/linux/export.h tools/include/linux/hash.h tools/include/linux/log2.h tools/include/linux/types.h +include/asm-generic/bitops/arch_hweight.h +include/asm-generic/bitops/const_hweight.h include/asm-generic/bitops/fls64.h include/asm-generic/bitops/__fls.h include/asm-generic/bitops/fls.h @@ -29,6 +34,7 @@ include/linux/list.h include/linux/hash.h include/linux/stringify.h lib/find_next_bit.c +lib/hweight.c lib/rbtree.c include/linux/swab.h arch/*/include/asm/unistd*.h diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 1f71a32aea78..aa6a50447c32 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -232,12 +232,15 @@ LIB_H += ../include/linux/hash.h LIB_H += ../../include/linux/stringify.h LIB_H += util/include/linux/bitmap.h LIB_H += ../include/linux/bitops.h +LIB_H += ../include/asm-generic/bitops/arch_hweight.h LIB_H += ../include/asm-generic/bitops/atomic.h +LIB_H += ../include/asm-generic/bitops/const_hweight.h LIB_H += ../include/asm-generic/bitops/find.h LIB_H += ../include/asm-generic/bitops/fls64.h LIB_H += ../include/asm-generic/bitops/fls.h LIB_H += ../include/asm-generic/bitops/__ffs.h LIB_H += ../include/asm-generic/bitops/__fls.h +LIB_H += ../include/asm-generic/bitops/hweight.h LIB_H += ../include/asm-generic/bitops.h LIB_H += ../include/linux/compiler.h LIB_H += ../include/linux/log2.h @@ -255,7 +258,6 @@ LIB_H += util/include/linux/linkage.h LIB_H += util/include/asm/asm-offsets.h LIB_H += ../include/asm/bug.h LIB_H += util/include/asm/byteorder.h -LIB_H += util/include/asm/hweight.h LIB_H += util/include/asm/swab.h LIB_H += util/include/asm/system.h LIB_H += util/include/asm/uaccess.h @@ -745,6 +747,9 @@ $(OUTPUT)util/kallsyms.o: ../lib/symbol/kallsyms.c $(OUTPUT)PERF-CFLAGS $(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $< +$(OUTPUT)util/hweight.o: ../../lib/hweight.c $(OUTPUT)PERF-CFLAGS + $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $< + $(OUTPUT)util/find_next_bit.o: ../lib/util/find_next_bit.c $(OUTPUT)PERF-CFLAGS $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $< 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 - -/** - * 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 -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 -- GitLab