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Introduce the perf_event__synthesize_stat_config to synthesize a 'struct perf_stat_config'. Storing the stat config in the form of tag-value pairs will, I believe, sort out future version extensibility issues. 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/1445784728-21732-13-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
#include <linux/compiler.h>
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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 "debug.h"
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static bool has_term(struct stat_config_event *config,
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u64 tag, u64 val)
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{
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unsigned i;
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for (i = 0; i < config->nr; i++) {
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if ((config->data[i].tag == tag) &&
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(config->data[i].val == val))
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return true;
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}
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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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{
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struct stat_config_event *config = &event->stat_config;
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#define HAS(term, val) \
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has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
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TEST_ASSERT_VAL("wrong nr", config->nr == PERF_STAT_CONFIG_TERM__MAX);
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TEST_ASSERT_VAL("wrong aggr_mode", HAS(AGGR_MODE, AGGR_CORE));
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TEST_ASSERT_VAL("wrong scale", HAS(SCALE, 1));
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TEST_ASSERT_VAL("wrong interval", HAS(INTERVAL, 1));
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#undef HAS
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return 0;
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}
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int test__synthesize_stat_config(int subtest __maybe_unused)
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{
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struct perf_stat_config stat_config = {
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.aggr_mode = AGGR_CORE,
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.scale = 1,
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.interval = 1,
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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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return 0;
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}
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