Commit-ID: 8b0819c8a3c97279b815581b606407c0387cc26f
Gitweb: http://git.kernel.org/tip/8b0819c8a3c97279b815581b606407c0387cc26f
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 24 Feb 2016 09:46:53 +0100
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 24 Feb 2016 10:31:03 -0300
perf tools: Change perf_mem__lck_scnprintf to return nb of displayed bytes
Moving strncat call into scnprintf to easily track number of displayed
bytes. It will be used in following patch.
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1456303616-26926-13-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/mem-events.c | 12 +++++++-----
tools/perf/util/mem-events.h | 2 +-
2 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index de981dd..eadb83d 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -221,18 +221,20 @@ int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
return l;
}
-void perf_mem__lck_scnprintf(char *out, size_t sz __maybe_unused,
- struct mem_info *mem_info)
+int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
{
u64 mask = PERF_MEM_LOCK_NA;
+ int l;
if (mem_info)
mask = mem_info->data_src.mem_lock;
if (mask & PERF_MEM_LOCK_NA)
- strncat(out, "N/A", 3);
+ l = scnprintf(out, sz, "N/A");
else if (mask & PERF_MEM_LOCK_LOCKED)
- strncat(out, "Yes", 3);
+ l = scnprintf(out, sz, "Yes");
else
- strncat(out, "No", 2);
+ l = scnprintf(out, sz, "No");
+
+ return l;
}
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 84c79a4..87c44ff 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -28,6 +28,6 @@ struct mem_info;
int perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
int perf_mem__lvl_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);
-void perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
+int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
#endif /* __PERF_MEM_EVENTS_H */
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