| From | Arnaldo Carvalho de Melo <> | Subject | [PATCH 01/38] perf tools: Use asprintf instead of malloc plus snprintf | Date | Wed, 4 Dec 2013 17:06:25 -0300 |
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From: Adrian Hunter <adrian.hunter@intel.com>
The asprintf library function is equivalent to malloc plus snprintf so use it because it is simpler.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1386055390-13757-4-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> --- tools/perf/util/srcline.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c index d11aefbc4b8d..4c8e816a2191 100644 --- a/tools/perf/util/srcline.c +++ b/tools/perf/util/srcline.c @@ -227,7 +227,6 @@ char *get_srcline(struct dso *dso, unsigned long addr) unsigned line = 0; char *srcline; char *dso_name = dso->long_name; - size_t size; if (!dso->has_srcline) return SRCLINE_UNKNOWN; @@ -241,13 +240,7 @@ char *get_srcline(struct dso *dso, unsigned long addr) if (!addr2line(dso_name, addr, &file, &line)) goto out; - /* just calculate actual length */ - size = snprintf(NULL, 0, "%s:%u", file, line) + 1; - - srcline = malloc(size); - if (srcline) - snprintf(srcline, size, "%s:%u", file, line); - else + if (asprintf(&srcline, "%s:%u", file, line) < 0) srcline = SRCLINE_UNKNOWN; free(file); -- 1.8.1.4
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