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| author | Jiri Olsa <jolsa@kernel.org> | 2016-02-24 09:46:52 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-02-24 10:30:22 -0300 |
| commit | 149d75076778d3b14e13b79d683b4f4fdd4fdb01 (patch) | |
| tree | 14849d4b139ed5047c209a0129fd9c84c4636bed /tools/perf/util/mem-events.c | |
| parent | 969075630e3abd1c740ac4f3183949cbf54b410d (diff) | |
| download | lwn-149d75076778d3b14e13b79d683b4f4fdd4fdb01.tar.gz lwn-149d75076778d3b14e13b79d683b4f4fdd4fdb01.zip | |
perf tools: Change perf_mem__snp_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/1456303616-26926-12-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 | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c index 249250f60481..de981ddcd1d3 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -194,7 +194,7 @@ static const char * const snoop_access[] = { "HitM", }; -void perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) +int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) { size_t i, l = 0; u64 m = PERF_MEM_SNOOP_NA; @@ -212,12 +212,13 @@ void perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info) strcat(out, " or "); l += 4; } - strncat(out, snoop_access[i], sz - l); - l += strlen(snoop_access[i]); + l += scnprintf(out + l, sz - l, snoop_access[i]); } if (*out == '\0') - strcpy(out, "N/A"); + l += scnprintf(out, sz - l, "N/A"); + + return l; } void perf_mem__lck_scnprintf(char *out, size_t sz __maybe_unused, |