Moving strncat/strcpy calls into scnprintf to easily track number of displayed bytes. It will be used in following patch.
Link: http://lkml.kernel.org/n/tip-9q9h9trua9zljnw26c56m...@git.kernel.org Signed-off-by: Jiri Olsa <jo...@kernel.org> --- 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 915fae6ad3ee..440221ca4f8a 100644 --- a/tools/perf/util/mem-events.c +++ b/tools/perf/util/mem-events.c @@ -129,7 +129,7 @@ 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; @@ -154,15 +154,16 @@ 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 0dd2efb37c44..ce9ed0540014 100644 --- a/tools/perf/util/mem-events.h +++ b/tools/perf/util/mem-events.h @@ -45,7 +45,7 @@ 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); -- 2.4.3
