Commit-ID: b1a5fbea3d69511e445b8d9efe6dc605edb508c8 Gitweb: http://git.kernel.org/tip/b1a5fbea3d69511e445b8d9efe6dc605edb508c8 Author: Jiri Olsa <jo...@kernel.org> AuthorDate: Wed, 24 Feb 2016 09:46:50 +0100 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Wed, 24 Feb 2016 10:30:03 -0300
perf tools: Change perf_mem__tlb_scnprintf to return nb of displayed bytes Moving strncat/strcpy calls into scnprintf to easily track number of displayed bytes. It will be used in following patch. Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: Andi Kleen <a...@linux.intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/r/1456303616-26926-10-git-send-email-jo...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/mem-events.c | 13 +++++++------ tools/perf/util/mem-events.h | 2 +- 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 9844e3e..b58d32e 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -95,7 +95,7 @@ static const char * const tlb_access[] = { "Fault", }; -void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info) +int perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info) { size_t l = 0, i; u64 m = PERF_MEM_TLB_NA; @@ -120,15 +120,16 @@ void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info) strcat(out, " or "); l += 4; } - strncat(out, tlb_access[i], sz - l); - l += strlen(tlb_access[i]); + l += scnprintf(out + l, sz - l, tlb_access[i]); } if (*out == '\0') - strcpy(out, "N/A"); + l += scnprintf(out, sz - l, "N/A"); if (hit) - strncat(out, " hit", sz - l); + l += scnprintf(out + l, sz - l, " hit"); if (miss) - strncat(out, " miss", sz - l); + l += scnprintf(out + l, sz - l, " miss"); + + return l; } static const char * const mem_lvl[] = { diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h index 99678b5..4141df6 100644 --- a/tools/perf/util/mem-events.h +++ b/tools/perf/util/mem-events.h @@ -25,7 +25,7 @@ int perf_mem_events__init(void); char *perf_mem_events__name(int i); struct mem_info; -void perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info); +int perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info); void perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info); void perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info); void perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
