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| author |   Jiri Olsa <jolsa@kernel.org> | 2016-02-24 09:46:50 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-24 10:30:03 -0300 |
| commit | b1a5fbea3d69511e445b8d9efe6dc605edb508c8 (patch) | |
| tree | 6a8419f6678ba3f268ff15588db6b619df074476 /tools/perf/util/mem-events.c | |
| parent | perf tools: Introduce perf_mem__lck_scnprintf function (diff) | |
| download | linux-dev-b1a5fbea3d69511e445b8d9efe6dc605edb508c8.tar.xz linux-dev-b1a5fbea3d69511e445b8d9efe6dc605edb508c8.zip | |
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 <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1456303616-26926-10-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/mem-events.c')
| -rw-r--r-- | tools/perf/util/mem-events.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 9844e3e36c1d..b58d32e1c80a 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[] = { |