linux/tools/perf/builtin-evlist.c
Ian Rogers f12ad2727b perf util: Move input_name to util
'input_name' is the name of the input perf.data file, it is used by data
convert and ui code. Move it to util to make it more consistent with
other global state.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Chengdong Li <chengdongli@tencent.com>
Cc: Denis Nikitin <denik@chromium.org>
Cc: Florian Fischer <florian.fischer@muhq.space>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Raul Silvera <rsilvera@google.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230410162511.3055900-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-04-10 19:21:31 -03:00

96 lines
2.5 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Builtin evlist command: Show the list of event selectors present
* in a perf.data file.
*/
#include "builtin.h"
#include <linux/list.h>
#include "util/evlist.h"
#include "util/evsel.h"
#include "util/evsel_fprintf.h"
#include "util/parse-events.h"
#include <subcmd/parse-options.h>
#include "util/session.h"
#include "util/data.h"
#include "util/debug.h"
#include <linux/err.h>
#include "util/tool.h"
#include "util/util.h"
static int process_header_feature(struct perf_session *session __maybe_unused,
union perf_event *event __maybe_unused)
{
session_done = 1;
return 0;
}
static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
{
struct perf_session *session;
struct evsel *pos;
struct perf_data data = {
.path = file_name,
.mode = PERF_DATA_MODE_READ,
.force = details->force,
};
struct perf_tool tool = {
/* only needed for pipe mode */
.attr = perf_event__process_attr,
.feature = process_header_feature,
};
bool has_tracepoint = false;
session = perf_session__new(&data, &tool);
if (IS_ERR(session))
return PTR_ERR(session);
if (data.is_pipe)
perf_session__process_events(session);
evlist__for_each_entry(session->evlist, pos) {
evsel__fprintf(pos, details, stdout);
if (pos->core.attr.type == PERF_TYPE_TRACEPOINT)
has_tracepoint = true;
}
if (has_tracepoint && !details->trace_fields)
printf("# Tip: use 'perf evlist --trace-fields' to show fields for tracepoint events\n");
perf_session__delete(session);
return 0;
}
int cmd_evlist(int argc, const char **argv)
{
struct perf_attr_details details = { .verbose = false, };
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "Input file name"),
OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
OPT_BOOLEAN('v', "verbose", &details.verbose,
"Show all event attr details"),
OPT_BOOLEAN('g', "group", &details.event_group,
"Show event group information"),
OPT_BOOLEAN('f', "force", &details.force, "don't complain, do it"),
OPT_BOOLEAN(0, "trace-fields", &details.trace_fields, "Show tracepoint fields"),
OPT_END()
};
const char * const evlist_usage[] = {
"perf evlist [<options>]",
NULL
};
argc = parse_options(argc, argv, options, evlist_usage, 0);
if (argc)
usage_with_options(evlist_usage, options);
if (details.event_group && (details.verbose || details.freq)) {
usage_with_options_msg(evlist_usage, options,
"--group option is not compatible with other options\n");
}
return __cmd_evlist(input_name, &details);
}