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perf evsel: Decode read_format and sample_type in perf_evsel__fprintf

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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>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-12-11 10:54:12 -03:00
parent 40c5ec7acb
commit c79a439338
1 changed files with 50 additions and 2 deletions
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52
tools/perf/util/evsel.c
View file

@ -1257,6 +1257,53 @@ static int __if_fprintf(FILE *fp, bool *first, const char *field, u64 value)
#define if_print(field) printed += __if_fprintf(fp, &first, #field, evsel->attr.field)
struct bit_names {
int bit;
const char *name;
};
static int bits__fprintf(FILE *fp, const char *field, u64 value,
struct bit_names *bits, bool *first)
{
int i = 0, printed = comma_fprintf(fp, first, " %s: ", field);
bool first_bit = true;
do {
if (value & bits[i].bit) {
printed += fprintf(fp, "%s%s", first_bit ? "" : "|", bits[i].name);
first_bit = false;
}
} while (bits[++i].name != NULL);
return printed;
}
static int sample_type__fprintf(FILE *fp, bool *first, u64 value)
{
#define bit_name(n) { PERF_SAMPLE_##n, #n }
struct bit_names bits[] = {
bit_name(IP), bit_name(TID), bit_name(TIME), bit_name(ADDR),
bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU),
bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
{ .name = NULL, }
};
#undef bit_name
return bits__fprintf(fp, "sample_type", value, bits, first);
}
static int read_format__fprintf(FILE *fp, bool *first, u64 value)
{
#define bit_name(n) { PERF_FORMAT_##n, #n }
struct bit_names bits[] = {
bit_name(TOTAL_TIME_ENABLED), bit_name(TOTAL_TIME_RUNNING),
bit_name(ID), bit_name(GROUP),
{ .name = NULL, }
};
#undef bit_name
return bits__fprintf(fp, "read_format", value, bits, first);
}
int perf_evsel__fprintf(struct perf_evsel *evsel,
struct perf_attr_details *details, FILE *fp)
{
@ -1274,8 +1321,9 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
if_print(config1);
if_print(config2);
if_print(size);
if_print(sample_type);
if_print(read_format);
printed += sample_type__fprintf(fp, &first, evsel->attr.sample_type);
if (evsel->attr.read_format)
printed += read_format__fprintf(fp, &first, evsel->attr.read_format);
if_print(disabled);
if_print(inherit);
if_print(pinned);