forked from luck/tmp_suning_uos_patched
perf evsel: Decode read_format and sample_type in perf_evsel__fprintf
Before those fields showed just a number, now it decodes each bit: [root@sandy linux]# perf evlist -v cycles: sample_freq=4000, size: 96, sample_type: IP|TID|TIME|CPU|PERIOD, read_format: TOTAL_TIME_ENABLED|TOTAL_TIME_RUNNING|ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, sample_id_all: 1, exclude_guest: 1 Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.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 <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-64ezdtiijolgti08ae3phxyj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -1257,6 +1257,53 @@ static int __if_fprintf(FILE *fp, bool *first, const char *field, u64 value)
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#define if_print(field) printed += __if_fprintf(fp, &first, #field, evsel->attr.field)
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struct bit_names {
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int bit;
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const char *name;
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};
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static int bits__fprintf(FILE *fp, const char *field, u64 value,
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struct bit_names *bits, bool *first)
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{
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int i = 0, printed = comma_fprintf(fp, first, " %s: ", field);
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bool first_bit = true;
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do {
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if (value & bits[i].bit) {
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printed += fprintf(fp, "%s%s", first_bit ? "" : "|", bits[i].name);
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first_bit = false;
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}
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} while (bits[++i].name != NULL);
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return printed;
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}
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static int sample_type__fprintf(FILE *fp, bool *first, u64 value)
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{
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#define bit_name(n) { PERF_SAMPLE_##n, #n }
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struct bit_names bits[] = {
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bit_name(IP), bit_name(TID), bit_name(TIME), bit_name(ADDR),
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bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU),
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bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
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bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
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{ .name = NULL, }
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};
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#undef bit_name
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return bits__fprintf(fp, "sample_type", value, bits, first);
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}
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static int read_format__fprintf(FILE *fp, bool *first, u64 value)
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{
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#define bit_name(n) { PERF_FORMAT_##n, #n }
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struct bit_names bits[] = {
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bit_name(TOTAL_TIME_ENABLED), bit_name(TOTAL_TIME_RUNNING),
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bit_name(ID), bit_name(GROUP),
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{ .name = NULL, }
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};
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#undef bit_name
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return bits__fprintf(fp, "read_format", value, bits, first);
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}
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int perf_evsel__fprintf(struct perf_evsel *evsel,
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struct perf_attr_details *details, FILE *fp)
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{
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@ -1274,8 +1321,9 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
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if_print(config1);
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if_print(config2);
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if_print(size);
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if_print(sample_type);
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if_print(read_format);
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printed += sample_type__fprintf(fp, &first, evsel->attr.sample_type);
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if (evsel->attr.read_format)
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printed += read_format__fprintf(fp, &first, evsel->attr.read_format);
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if_print(disabled);
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if_print(inherit);
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if_print(pinned);
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