1 // SPDX-License-Identifier: GPL-2.0
6 #include "parse-events.h"
11 #include <subcmd/parse-options.h>
16 #include "../perf-sys.h"
19 #include "mem-events.h"
22  * evsel__config_leader_sampling() uses special rules for leader sampling.
44 	struct list_head *config_terms = &evsel->config_terms;  in evsel__config_term_mask()
48 		term_types |= 1 << term->type;  in evsel__config_term_mask()
55 	struct perf_event_attr *attr = &evsel->core.attr;  in evsel__config_leader_sampling()
60 	if (!leader->sample_read)  in evsel__config_leader_sampling()
70 	 * Disable sampling for all group members except those with explicit  in evsel__config_leader_sampling()
72 	 * event in the group is the one that 'leads' the sampling.  in evsel__config_leader_sampling()
76 		attr->freq           = 0;  in evsel__config_leader_sampling()
77 		attr->sample_freq    = 0;  in evsel__config_leader_sampling()
78 		attr->sample_period  = 0;  in evsel__config_leader_sampling()
81 		attr->write_backward = 0;  in evsel__config_leader_sampling()
91 	attr->sample_type = read_sampler->core.attr.sample_type |  in evsel__config_leader_sampling()
92 			    leader->core.attr.sample_type;  in evsel__config_leader_sampling()
100 	bool sample_id = opts->sample_id;  in evlist__config()
102 	if (perf_cpu_map__cpu(evlist->core.user_requested_cpus, 0).cpu < 0)  in evlist__config()
103 		opts->no_inherit = true;  in evlist__config()
109 		if (evsel->tracking && use_comm_exec)  in evlist__config()
110 			evsel->core.attr.comm_exec = 1;  in evlist__config()
113 	/* Configure leader sampling here now that the sample type is known */  in evlist__config()
117 	if (opts->full_auxtrace || opts->sample_identifier) {  in evlist__config()
125 	} else if (evlist->core.nr_entries > 1) {  in evlist__config()
129 			if (evsel->core.attr.sample_type == first->core.attr.sample_type)  in evlist__config()
152 	bool user_freq = opts->user_freq != UINT_MAX;  in record_opts__config_freq()
153 	bool user_interval = opts->user_interval != ULLONG_MAX;  in record_opts__config_freq()
158 		return -1;  in record_opts__config_freq()
162 		opts->default_interval = opts->user_interval;  in record_opts__config_freq()
164 		opts->freq = opts->user_freq;  in record_opts__config_freq()
169 	if (opts->default_interval)  in record_opts__config_freq()
170 		opts->freq = 0;  in record_opts__config_freq()
171 	else if (opts->freq) {  in record_opts__config_freq()
172 		opts->default_interval = opts->freq;  in record_opts__config_freq()
175 		return -1;  in record_opts__config_freq()
182 	 * User specified frequency is over current maximum.  in record_opts__config_freq()
184 	if (user_freq && (max_rate < opts->freq)) {  in record_opts__config_freq()
185 		if (opts->strict_freq) {  in record_opts__config_freq()
187 			       "       Please use -F freq option with a lower value or consider\n"  in record_opts__config_freq()
190 			return -1;  in record_opts__config_freq()
195 				   "         Use --strict-freq to disable this throttling, refusing to record.\n",  in record_opts__config_freq()
196 				   max_rate, opts->freq, max_rate);  in record_opts__config_freq()
198 			opts->freq = max_rate;  in record_opts__config_freq()
203 	 * Default frequency is over current maximum.  in record_opts__config_freq()
205 	if (max_rate < opts->freq) {  in record_opts__config_freq()
209 			   opts->freq, max_rate);  in record_opts__config_freq()
210 		opts->freq = max_rate;  in record_opts__config_freq()
228 	pid_t pid = -1;  in evlist__can_select_event()
240 	if (!evlist || perf_cpu_map__empty(evlist->core.user_requested_cpus)) {  in evlist__can_select_event()
248 		cpu = perf_cpu_map__cpu(evlist->core.user_requested_cpus, 0);  in evlist__can_select_event()
252 		fd = sys_perf_event_open(&evsel->core.attr, pid, cpu.cpu, -1,  in evlist__can_select_event()
255 			if (pid == -1 && errno == EACCES) {  in evlist__can_select_event()
274 	struct record_opts *opts = opt->value;  in record__parse_freq()
277 		return -EINVAL;  in record__parse_freq()
282 			return -1;  in record__parse_freq()
289 	opts->user_freq = freq;  in record__parse_freq()