From 8b0819c8a3c97279b815581b606407c0387cc26f Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 24 Feb 2016 09:46:53 +0100 Subject: 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 Cc: Andi Kleen Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1456303616-26926-13-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/mem-events.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'tools/perf/util/mem-events.c') 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; } -- cgit v1.1