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perf tools: Add stat event synthesize function
Introduce the perf_event__synthesize_stat function to synthesize a 'struct stat_event'. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Kan Liang <kan.liang@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445784728-21732-16-git-send-email-jolsa@kernel.org [ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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parent
d80518c90b
commit
5796f8f073
5 changed files with 69 additions and 6 deletions
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@ -191,6 +191,10 @@ static struct test generic_tests[] = {
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.desc = "Test stat config synthesize",
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.func = test__synthesize_stat_config,
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},
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{
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.desc = "Test stat synthesize",
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.func = test__synthesize_stat,
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},
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{
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.func = NULL,
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},
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@ -2,6 +2,7 @@
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#include "event.h"
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#include "tests.h"
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#include "stat.h"
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#include "counts.h"
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#include "debug.h"
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static bool has_term(struct stat_config_event *config,
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@ -18,10 +19,10 @@ static bool has_term(struct stat_config_event *config,
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return false;
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}
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static int process_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct stat_config_event *config = &event->stat_config;
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struct perf_stat_config stat_config;
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@ -53,7 +54,37 @@ int test__synthesize_stat_config(int subtest __maybe_unused)
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};
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TEST_ASSERT_VAL("failed to synthesize stat_config",
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!perf_event__synthesize_stat_config(NULL, &stat_config, process_event, NULL));
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!perf_event__synthesize_stat_config(NULL, &stat_config, process_stat_config_event, NULL));
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return 0;
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}
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static int process_stat_event(struct perf_tool *tool __maybe_unused,
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union perf_event *event,
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struct perf_sample *sample __maybe_unused,
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struct machine *machine __maybe_unused)
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{
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struct stat_event *st = &event->stat;
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TEST_ASSERT_VAL("wrong cpu", st->cpu == 1);
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TEST_ASSERT_VAL("wrong thread", st->thread == 2);
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TEST_ASSERT_VAL("wrong id", st->id == 3);
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TEST_ASSERT_VAL("wrong val", st->val == 100);
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TEST_ASSERT_VAL("wrong run", st->ena == 200);
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TEST_ASSERT_VAL("wrong ena", st->run == 300);
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return 0;
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}
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int test__synthesize_stat(int subtest __maybe_unused)
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{
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struct perf_counts_values count;
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count.val = 100;
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count.ena = 200;
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count.run = 300;
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TEST_ASSERT_VAL("failed to synthesize stat_config",
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!perf_event__synthesize_stat(NULL, 1, 2, 3, &count, process_stat_event, NULL));
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return 0;
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}
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@ -82,6 +82,7 @@ int test_session_topology(int subtest);
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int test__thread_map_synthesize(int subtest);
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int test__cpu_map_synthesize(int subtest);
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int test__synthesize_stat_config(int subtest);
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int test__synthesize_stat(int subtest);
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#if defined(__arm__) || defined(__aarch64__)
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#ifdef HAVE_DWARF_UNWIND_SUPPORT
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@ -910,6 +910,28 @@ int perf_event__synthesize_stat_config(struct perf_tool *tool,
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return err;
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}
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int perf_event__synthesize_stat(struct perf_tool *tool,
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u32 cpu, u32 thread, u64 id,
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struct perf_counts_values *count,
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perf_event__handler_t process,
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struct machine *machine)
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{
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struct stat_event event;
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event.header.type = PERF_RECORD_STAT;
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event.header.size = sizeof(event);
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event.header.misc = 0;
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event.id = id;
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event.cpu = cpu;
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event.thread = thread;
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event.val = count->val;
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event.ena = count->ena;
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event.run = count->run;
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return process(tool, (union perf_event *) &event, NULL, machine);
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}
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void perf_event__read_stat_config(struct perf_stat_config *config,
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struct stat_config_event *event)
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{
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@ -466,6 +466,7 @@ struct perf_tool;
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struct thread_map;
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struct cpu_map;
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struct perf_stat_config;
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struct perf_counts_values;
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typedef int (*perf_event__handler_t)(struct perf_tool *tool,
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union perf_event *event,
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@ -498,7 +499,11 @@ int perf_event__synthesize_stat_config(struct perf_tool *tool,
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struct machine *machine);
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void perf_event__read_stat_config(struct perf_stat_config *config,
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struct stat_config_event *event);
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int perf_event__synthesize_stat(struct perf_tool *tool,
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u32 cpu, u32 thread, u64 id,
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struct perf_counts_values *count,
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perf_event__handler_t process,
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struct machine *machine);
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int perf_event__synthesize_modules(struct perf_tool *tool,
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perf_event__handler_t process,
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struct machine *machine);
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