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| author | Ingo Molnar <mingo@elte.hu> | 2009-07-01 12:37:06 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-07-01 12:49:48 +0200 |
| commit | f37a291c527c954df4da568de718ebb36b8261c0 (patch) | |
| tree | bb4863fbd185fbfef5f7d28cb4001d59d4123a2d /tools/perf/builtin-stat.c | |
| parent | 88a69dfbc6ab1e3b51bba8c9103055e21089ebb9 (diff) | |
| download | blackbird-op-linux-f37a291c527c954df4da568de718ebb36b8261c0.tar.gz blackbird-op-linux-f37a291c527c954df4da568de718ebb36b8261c0.zip | |
perf_counter tools: Add more warnings and fix/annotate them
Enable -Wextra. This found a few real bugs plus a number
of signed/unsigned type mismatches/uncleanlinesses. It
also required a few annotations
All things considered it was still worth it so lets try with
this enabled for now.
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-stat.c')
| -rw-r--r-- | tools/perf/builtin-stat.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 2e03524a1de0..095a90e012a1 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -64,7 +64,7 @@ static struct perf_counter_attr default_attrs[] = { static int system_wide = 0; static int verbose = 0; -static int nr_cpus = 0; +static unsigned int nr_cpus = 0; static int run_idx = 0; static int run_count = 1; @@ -108,7 +108,8 @@ static void create_perf_stat_counter(int counter, int pid) PERF_FORMAT_TOTAL_TIME_RUNNING; if (system_wide) { - int cpu; + unsigned int cpu; + for (cpu = 0; cpu < nr_cpus; cpu++) { fd[cpu][counter] = sys_perf_counter_open(attr, -1, cpu, -1, 0); if (fd[cpu][counter] < 0 && verbose) @@ -150,8 +151,8 @@ static inline int nsec_counter(int counter) static void read_counter(int counter) { u64 *count, single_count[3]; - ssize_t res; - int cpu, nv; + unsigned int cpu; + size_t res, nv; int scaled; count = event_res[run_idx][counter]; @@ -165,6 +166,7 @@ static void read_counter(int counter) res = read(fd[cpu][counter], single_count, nv * sizeof(u64)); assert(res == nv * sizeof(u64)); + close(fd[cpu][counter]); fd[cpu][counter] = -1; @@ -200,7 +202,7 @@ static void read_counter(int counter) runtime_cycles[run_idx] = count[0]; } -static int run_perf_stat(int argc, const char **argv) +static int run_perf_stat(int argc __used, const char **argv) { unsigned long long t0, t1; int status = 0; @@ -390,7 +392,7 @@ static void calc_avg(void) event_res_avg[j]+1, event_res[i][j]+1); update_avg("counter/2", j, event_res_avg[j]+2, event_res[i][j]+2); - if (event_scaled[i][j] != -1) + if (event_scaled[i][j] != (u64)-1) update_avg("scaled", j, event_scaled_avg + j, event_scaled[i]+j); else @@ -510,7 +512,7 @@ static const struct option options[] = { OPT_END() }; -int cmd_stat(int argc, const char **argv, const char *prefix) +int cmd_stat(int argc, const char **argv, const char *prefix __used) { int status; @@ -528,7 +530,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix) nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); assert(nr_cpus <= MAX_NR_CPUS); - assert(nr_cpus >= 0); + assert((int)nr_cpus >= 0); /* * We dont want to block the signals - that would cause |
