Hi Riccardo,
On Sat, 15 Jun 2013 12:15:14 +0200, Riccardo Magliocchetti wrote:
> bench/numa.c: In function ‘worker_thread’:
> bench/numa.c:1113:20: error: comparison between signed and unsigned integer
> expressions [-Werror=sign-compare]
> if (diff.tv_sec >= g->p.nr_secs) {
> ^
> bench/numa.c:1161:6: error: format ‘%lx’ expects argument of type ‘long
> unsigned int’, but argument 5 has type ‘u64’ [-Werror=format=]
> process_nr, thread_nr, runtime_ns_max / bytes_done, val);
> ^
>
> Signed-off-by: Riccardo Magliocchetti <riccardo.magliocche...@gmail.com>
> ---
> tools/perf/bench/numa.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> Diffed against 3.9.6 but should apply cleanly to latest git
>
> diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
> index 30d1c32..90ef4cc 100644
> --- a/tools/perf/bench/numa.c
> +++ b/tools/perf/bench/numa.c
> @@ -1110,7 +1110,7 @@ static void *worker_thread(void *__tdata)
> /* Check whether our max runtime timed out: */
> if (g->p.nr_secs) {
> timersub(&stop, &start0, &diff);
> - if (diff.tv_sec >= g->p.nr_secs) {
> + if (diff.tv_sec >= (long int)g->p.nr_secs) {
> g->stop_work = true;
> break;
> }
> @@ -1157,7 +1157,7 @@ static void *worker_thread(void *__tdata)
> runtime_ns_max += diff.tv_usec * 1000;
>
> if (details >= 0) {
> - printf(" #%2d / %2d: %14.2lf nsecs/op [val:
> %016lx]\n",
> + printf(" #%2d / %2d: %14.2lf nsecs/op [val:
> %016llx]\n",
> process_nr, thread_nr, runtime_ns_max /
> bytes_done, val);
> }
> fflush(stdout);
It will fail to build on 64 bit machines:
bench/numa.c: In function ‘worker_thread’:
bench/numa.c:1161:6: error: format ‘%llx’ expects argument of type ‘long long
unsigned int’, but argument 5 has type ‘u64’ [-Werror=format]
cc1: all warnings being treated as errors
make: *** [bench/numa.o] Error 1
You can use PRIx64 or cast val to unsigned long long type explicitly.
Thanks,
Namhyung
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