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Subject[PATCH 04/15] perf tools: Introduce struct perf_target
Date
From: Namhyung Kim <namhyung.kim@lge.com>

The perf_target struct will be used for taking care of cpu/thread maps
based on user's input. Since it is used on various subcommands it'd
better factoring it out.

Thanks to Arnaldo for suggesting the better name.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1335417327-11796-2-git-send-email-namhyung.kim@lge.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-record.c | 41 ++++++++++++++++++++++-------------------
tools/perf/builtin-test.c | 5 +++--
tools/perf/perf.h | 15 ++++++++++-----
tools/perf/util/evlist.c | 2 +-
tools/perf/util/evsel.c | 10 +++++-----
5 files changed, 41 insertions(+), 32 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 10b1f1f..4dcf270 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -44,7 +44,6 @@ struct perf_record {
struct perf_evlist *evlist;
struct perf_session *session;
const char *progname;
- const char *uid_str;
int output;
unsigned int page_size;
int realtime_prio;
@@ -218,7 +217,7 @@ try_again:
if (err == EPERM || err == EACCES) {
ui__error_paranoid();
exit(EXIT_FAILURE);
- } else if (err == ENODEV && opts->cpu_list) {
+ } else if (err == ENODEV && opts->target.cpu_list) {
die("No such device - did you specify"
" an out-of-range profile CPU?\n");
} else if (err == EINVAL) {
@@ -578,7 +577,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
perf_session__process_machines(session, tool,
perf_event__synthesize_guest_os);

- if (!opts->system_wide)
+ if (!opts->target.system_wide)
perf_event__synthesize_thread_map(tool, evsel_list->threads,
process_synthesized_event,
machine);
@@ -765,9 +764,9 @@ const struct option record_options[] = {
parse_events_option),
OPT_CALLBACK(0, "filter", &record.evlist, "filter",
"event filter", parse_filter),
- OPT_STRING('p', "pid", &record.opts.target_pid, "pid",
+ OPT_STRING('p', "pid", &record.opts.target.pid, "pid",
"record events on existing process id"),
- OPT_STRING('t', "tid", &record.opts.target_tid, "tid",
+ OPT_STRING('t', "tid", &record.opts.target.tid, "tid",
"record events on existing thread id"),
OPT_INTEGER('r', "realtime", &record.realtime_prio,
"collect data with this RT SCHED_FIFO priority"),
@@ -775,11 +774,11 @@ const struct option record_options[] = {
"collect data without buffering"),
OPT_BOOLEAN('R', "raw-samples", &record.opts.raw_samples,
"collect raw sample records from all opened counters"),
- OPT_BOOLEAN('a', "all-cpus", &record.opts.system_wide,
+ OPT_BOOLEAN('a', "all-cpus", &record.opts.target.system_wide,
"system-wide collection from all CPUs"),
OPT_BOOLEAN('A', "append", &record.append_file,
"append to the output file to do incremental profiling"),
- OPT_STRING('C', "cpu", &record.opts.cpu_list, "cpu",
+ OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
"list of cpus to monitor"),
OPT_BOOLEAN('f', "force", &record.force,
"overwrite existing data file (deprecated)"),
@@ -813,7 +812,8 @@ const struct option record_options[] = {
OPT_CALLBACK('G', "cgroup", &record.evlist, "name",
"monitor event in cgroup name only",
parse_cgroups),
- OPT_STRING('u', "uid", &record.uid_str, "user", "user to profile"),
+ OPT_STRING('u', "uid", &record.opts.target.uid_str, "user",
+ "user to profile"),

OPT_CALLBACK_NOOPT('b', "branch-any", &record.opts.branch_stack,
"branch any", "sample any taken branches",
@@ -842,8 +842,9 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)

argc = parse_options(argc, argv, record_options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (!argc && !rec->opts.target_pid && !rec->opts.target_tid &&
- !rec->opts.system_wide && !rec->opts.cpu_list && !rec->uid_str)
+ if (!argc && !rec->opts.target.pid && !rec->opts.target.tid &&
+ !rec->opts.target.system_wide && !rec->opts.target.cpu_list &&
+ !rec->opts.target.uid_str)
usage_with_options(record_usage, record_options);

if (rec->force && rec->append_file) {
@@ -856,7 +857,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
rec->write_mode = WRITE_FORCE;
}

- if (nr_cgroups && !rec->opts.system_wide) {
+ if (nr_cgroups && !rec->opts.target.system_wide) {
fprintf(stderr, "cgroup monitoring only available in"
" system-wide mode\n");
usage_with_options(record_usage, record_options);
@@ -883,17 +884,19 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
goto out_symbol_exit;
}

- rec->opts.uid = parse_target_uid(rec->uid_str, rec->opts.target_tid,
- rec->opts.target_pid);
- if (rec->uid_str != NULL && rec->opts.uid == UINT_MAX - 1)
+ rec->opts.target.uid = parse_target_uid(rec->opts.target.uid_str,
+ rec->opts.target.tid,
+ rec->opts.target.pid);
+ if (rec->opts.target.uid_str != NULL &&
+ rec->opts.target.uid == UINT_MAX - 1)
goto out_free_fd;

- if (rec->opts.target_pid)
- rec->opts.target_tid = rec->opts.target_pid;
+ if (rec->opts.target.pid)
+ rec->opts.target.tid = rec->opts.target.pid;

- if (perf_evlist__create_maps(evsel_list, rec->opts.target_pid,
- rec->opts.target_tid, rec->opts.uid,
- rec->opts.cpu_list) < 0)
+ if (perf_evlist__create_maps(evsel_list, rec->opts.target.pid,
+ rec->opts.target.tid, rec->opts.target.uid,
+ rec->opts.target.cpu_list) < 0)
usage_with_options(record_usage, record_options);

list_for_each_entry(pos, &evsel_list->entries, node) {
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 5502a4a..27882d8 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -1207,8 +1207,9 @@ static int test__PERF_RECORD(void)
* perf_evlist__prepare_workload we'll fill in the only thread
* we're monitoring, the one forked there.
*/
- err = perf_evlist__create_maps(evlist, opts.target_pid,
- opts.target_tid, UINT_MAX, opts.cpu_list);
+ err = perf_evlist__create_maps(evlist, opts.target.pid,
+ opts.target.tid, UINT_MAX,
+ opts.target.cpu_list);
if (err < 0) {
pr_debug("Not enough memory to create thread/cpu maps\n");
goto out_delete_evlist;
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 89e3355..7e226c0 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -207,10 +207,17 @@ extern const char perf_version_string[];

void pthread__unblock_sigwinch(void);

-struct perf_record_opts {
- const char *target_pid;
- const char *target_tid;
+struct perf_target {
+ const char *pid;
+ const char *tid;
+ const char *cpu_list;
+ const char *uid_str;
uid_t uid;
+ bool system_wide;
+};
+
+struct perf_record_opts {
+ struct perf_target target;
bool call_graph;
bool group;
bool inherit_stat;
@@ -223,7 +230,6 @@ struct perf_record_opts {
bool sample_time;
bool sample_id_all_missing;
bool exclude_guest_missing;
- bool system_wide;
bool period;
unsigned int freq;
unsigned int mmap_pages;
@@ -231,7 +237,6 @@ struct perf_record_opts {
int branch_stack;
u64 default_interval;
u64 user_interval;
- const char *cpu_list;
};

#endif
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 1986d80..7080901 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -827,7 +827,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
exit(-1);
}

- if (!opts->system_wide && !opts->target_tid && !opts->target_pid)
+ if (!opts->target.system_wide && !opts->target.tid && !opts->target.pid)
evlist->threads->map[0] = evlist->workload.pid;

close(child_ready_pipe[1]);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 8c13dbc..d90598e 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -106,15 +106,15 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
if (opts->call_graph)
attr->sample_type |= PERF_SAMPLE_CALLCHAIN;

- if (opts->system_wide)
+ if (opts->target.system_wide)
attr->sample_type |= PERF_SAMPLE_CPU;

if (opts->period)
attr->sample_type |= PERF_SAMPLE_PERIOD;

if (!opts->sample_id_all_missing &&
- (opts->sample_time || opts->system_wide ||
- !opts->no_inherit || opts->cpu_list))
+ (opts->sample_time || opts->target.system_wide ||
+ !opts->no_inherit || opts->target.cpu_list))
attr->sample_type |= PERF_SAMPLE_TIME;

if (opts->raw_samples) {
@@ -135,8 +135,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
attr->mmap = track;
attr->comm = track;

- if (!opts->target_pid && !opts->target_tid && !opts->system_wide &&
- (!opts->group || evsel == first)) {
+ if (!opts->target.pid && !opts->target.tid &&
+ !opts->target.system_wide && (!opts->group || evsel == first)) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
--
1.7.9.2.358.g22243


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