From be3de80dc2e671d9ee15e69fe9cd84d2b71e2225 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 24 Jan 2012 10:03:22 -0200 Subject: perf bench: Also allow measuring memset() This simply clones the respective memcpy() implementation. Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/4F16D743020000780006D735@nat28.tlf.novell.com Signed-off-by: Jan Beulich Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/include/asm/dwarf2.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/include') diff --git a/tools/perf/util/include/asm/dwarf2.h b/tools/perf/util/include/asm/dwarf2.h index bb4198e7837a..afe38199e922 100644 --- a/tools/perf/util/include/asm/dwarf2.h +++ b/tools/perf/util/include/asm/dwarf2.h @@ -2,10 +2,12 @@ #ifndef PERF_DWARF2_H #define PERF_DWARF2_H -/* dwarf2.h ... dummy header file for including arch/x86/lib/memcpy_64.S */ +/* dwarf2.h ... dummy header file for including arch/x86/lib/mem{cpy,set}_64.S */ #define CFI_STARTPROC #define CFI_ENDPROC +#define CFI_REMEMBER_STATE +#define CFI_RESTORE_STATE #endif /* PERF_DWARF2_H */ -- cgit v1.3-14-g43fede From 850f8127fa3666737881aecb3b16e8ede85e58f4 Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Fri, 27 Jan 2012 15:34:23 +0100 Subject: perf tools: Add bitmap_or function into bitmap object Adding implementation os bitmap_or function to the bitmap object. It is stolen from the kernel lib/bitmap.o object. It is used in upcomming patches. Cc: Corey Ashford Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1327674868-10486-5-git-send-email-jolsa@redhat.com Signed-off-by: Jiri Olsa Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/bitmap.c | 10 ++++++++++ tools/perf/util/include/linux/bitmap.h | 11 +++++++++++ 2 files changed, 21 insertions(+) (limited to 'tools/perf/util/include') diff --git a/tools/perf/util/bitmap.c b/tools/perf/util/bitmap.c index 5e230acae1e9..0a1adc1111fd 100644 --- a/tools/perf/util/bitmap.c +++ b/tools/perf/util/bitmap.c @@ -19,3 +19,13 @@ int __bitmap_weight(const unsigned long *bitmap, int bits) return w; } + +void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1, + const unsigned long *bitmap2, int bits) +{ + int k; + int nr = BITS_TO_LONGS(bits); + + for (k = 0; k < nr; k++) + dst[k] = bitmap1[k] | bitmap2[k]; +} diff --git a/tools/perf/util/include/linux/bitmap.h b/tools/perf/util/include/linux/bitmap.h index eda4416efa0a..bb162e40c76c 100644 --- a/tools/perf/util/include/linux/bitmap.h +++ b/tools/perf/util/include/linux/bitmap.h @@ -5,6 +5,8 @@ #include int __bitmap_weight(const unsigned long *bitmap, int bits); +void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1, + const unsigned long *bitmap2, int bits); #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ @@ -32,4 +34,13 @@ static inline int bitmap_weight(const unsigned long *src, int nbits) return __bitmap_weight(src, nbits); } +static inline void bitmap_or(unsigned long *dst, const unsigned long *src1, + const unsigned long *src2, int nbits) +{ + if (small_const_nbits(nbits)) + *dst = *src1 | *src2; + else + __bitmap_or(dst, src1, src2, nbits); +} + #endif /* _PERF_BITOPS_H */ -- cgit v1.3-14-g43fede From eae7a755ee81129370c8f555b0d5672e6673735d Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 14 Mar 2012 12:42:34 -0300 Subject: perf tools, x86: Build perf on older user-space as well MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On ancient systems I get this build failure: util/../../../arch/x86/include/asm/unistd.h:67:29: error: asm/unistd_64.h: No such file or directory In file included from util/cache.h:7, from builtin-test.c:8: util/../perf.h: In function ‘sys_perf_event_open’:In file included from util/../perf.h:16 perf.h:170: error: ‘__NR_perf_event_open’ undeclared (first use in this function) The reason is that this old system does not have the split unistd.h headers yet, from which to pick up the syscall definitions. Add the syscall numbers to the already existing i386 and x86_64 blocks in perf.h, and also provide empty include file stubs. With this patch perf builds and works fine on 5 years old user-space as well. Cc: Peter Zijlstra Cc: Arnaldo Carvalho de Melo Link: http://lkml.kernel.org/n/tip-jctwg64le1w47tuaoeyftsg9@git.kernel.org Signed-off-by: Ingo Molnar Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/Makefile | 2 ++ tools/perf/perf.h | 6 ++++++ tools/perf/util/include/asm/unistd_32.h | 1 + tools/perf/util/include/asm/unistd_64.h | 1 + 4 files changed, 10 insertions(+) create mode 100644 tools/perf/util/include/asm/unistd_32.h create mode 100644 tools/perf/util/include/asm/unistd_64.h (limited to 'tools/perf/util/include') diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 7c12650165ae..8a4b9bccf8b2 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -249,6 +249,8 @@ LIB_H += util/include/asm/uaccess.h LIB_H += util/include/dwarf-regs.h LIB_H += util/include/asm/dwarf2.h LIB_H += util/include/asm/cpufeature.h +LIB_H += util/include/asm/unistd_32.h +LIB_H += util/include/asm/unistd_64.h LIB_H += perf.h LIB_H += util/annotate.h LIB_H += util/cache.h diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 16e7d20eee83..3afa39ac1d40 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -10,6 +10,9 @@ void get_term_dimensions(struct winsize *ws); #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC "model name" +#ifndef __NR_perf_event_open +# define __NR_perf_event_open 336 +#endif #endif #if defined(__x86_64__) @@ -17,6 +20,9 @@ void get_term_dimensions(struct winsize *ws); #define rmb() asm volatile("lfence" ::: "memory") #define cpu_relax() asm volatile("rep; nop" ::: "memory"); #define CPUINFO_PROC "model name" +#ifndef __NR_perf_event_open +# define __NR_perf_event_open 298 +#endif #endif #ifdef __powerpc__ diff --git a/tools/perf/util/include/asm/unistd_32.h b/tools/perf/util/include/asm/unistd_32.h new file mode 100644 index 000000000000..8b137891791f --- /dev/null +++ b/tools/perf/util/include/asm/unistd_32.h @@ -0,0 +1 @@ + diff --git a/tools/perf/util/include/asm/unistd_64.h b/tools/perf/util/include/asm/unistd_64.h new file mode 100644 index 000000000000..8b137891791f --- /dev/null +++ b/tools/perf/util/include/asm/unistd_64.h @@ -0,0 +1 @@ + -- cgit v1.3-14-g43fede