perf/util/probe-event.c

1858 int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev)
1860 	struct probe_trace_point *tp = &tev->point;
1894 	tev->group = strdup(fmt2_str);
1895 	tev->event = strdup(fmt3_str);
1896 	if (tev->group == NULL || tev->event == NULL) {
1900 	pr_debug("Group:%s Event:%s probe:%c\n", tev->group, tev->event, pr);
1912 		tev->uprobes = (tp->module[0] == '/');
1955 	if (tev->uprobes) {
1961 	tev->nargs = argc - 2;
1962 	tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
1963 	if (tev->args == NULL) {
1967 	for (i = 0; i < tev->nargs; i++) {
1973 		tev->args[i].name = strdup(argv[i + 2]);
1975 		tev->args[i].value = strdup(p);
1976 		if (tev->args[i].name == NULL || tev->args[i].value == NULL) {
2162 synthesize_probe_trace_args(struct probe_trace_event *tev, struct strbuf *buf)
2166 	for (i = 0; i < tev->nargs && ret >= 0; i++)
2167 		ret = synthesize_probe_trace_arg(&tev->args[i], buf);
2213 char *synthesize_probe_trace_command(struct probe_trace_event *tev)
2215 	struct probe_trace_point *tp = &tev->point;
2224 			tev->group, tev->event) < 0)
2227 	if (tev->uprobes)
2233 		err = synthesize_probe_trace_args(tev, &buf);
2316 static int convert_to_perf_probe_event(struct probe_trace_event *tev,
2323 	pev->event = strdup(tev->event);
2324 	pev->group = strdup(tev->group);
2329 	ret = convert_to_perf_probe_point(&tev->point, &pev->point, is_kprobe);
2334 	pev->nargs = tev->nargs;
2338 	for (i = 0; i < tev->nargs && ret >= 0; i++) {
2339 		if (tev->args[i].name)
2340 			pev->args[i].name = strdup(tev->args[i].name);
2344 			ret = synthesize_probe_trace_arg(&tev->args[i], &buf);
2456 void clear_probe_trace_event(struct probe_trace_event *tev)
2461 	zfree(&tev->event);
2462 	zfree(&tev->group);
2463 	zfree(&tev->point.symbol);
2464 	zfree(&tev->point.realname);
2465 	zfree(&tev->point.module);
2466 	for (i = 0; i < tev->nargs; i++) {
2467 		zfree(&tev->args[i].name);
2468 		zfree(&tev->args[i].value);
2469 		zfree(&tev->args[i].type);
2470 		ref = tev->args[i].ref;
2477 	zfree(&tev->args);
2478 	tev->nargs = 0;
2651 static bool filter_probe_trace_event(struct probe_trace_event *tev,
2657 	if (strfilter__compare(filter, tev->event))
2661 	if (e_snprintf(tmp, 128, "%s:%s", tev->group, tev->event) < 0)
2670 	struct probe_trace_event tev;
2675 	memset(&tev, 0, sizeof(tev));
2683 		ret = parse_probe_trace_command(ent->s, &tev);
2685 			if (!filter_probe_trace_event(&tev, filter))
2687 			ret = convert_to_perf_probe_event(&tev, &pev,
2692 						    &pev, tev.point.module,
2697 		clear_probe_trace_event(&tev);
2805 static void warn_uprobe_event_compat(struct probe_trace_event *tev)
2808 	char *buf = synthesize_probe_trace_command(tev);
2809 	struct probe_trace_point *tp = &tev->point;
2814 			   tev->group, tev->event);
2818 	if (!tev->uprobes || tev->nargs == 0 || !buf)
2821 	for (i = 0; i < tev->nargs; i++) {
2822 		if (strchr(tev->args[i].value, '@')) {
2824 				   tev->args[i].value);
2827 		if (strglobmatch(tev->args[i].value, "[$+-]*")) {
2829 				   tev->args[i].value);
2838 static int probe_trace_event__set_name(struct probe_trace_event *tev,
2850 	else if (tev->event)
2851 		event = tev->event;
2859 			event = tev->point.realname;
2863 	else if (tev->group)
2864 		group = tev->group;
2870 				 tev->point.retprobe, allow_suffix);
2876 	tev->event = strdup(event);
2877 	tev->group = strdup(group);
2878 	if (tev->event == NULL || tev->group == NULL)
2915 	struct probe_trace_event *tev = NULL;
2927 		tev = &tevs[i];
2928 		up = tev->uprobes ? 1 : 0;
2936 		if (!tev->point.symbol && !pev->uprobes)
2939 		/* Set new name for tev (and update namelist) */
2940 		ret = probe_trace_event__set_name(tev, pev, namelist[up],
2946 		ret = probe_file__add_event(fd[up], tev);
2960 		warn_uprobe_event_compat(tev);
3025 				struct probe_trace_event *tev __maybe_unused,
3051 	struct probe_trace_event *tev;
3110 	*tevs = zalloc(sizeof(*tev) * num_matched_functions);
3134 		tev = (*tevs) + ret;
3135 		tp = &tev->point;
3168 				tev->point.module = strdup_or_goto(pev->target,
3172 				tev->point.module =
3175 				if (!tev->point.module)
3179 		tev->uprobes = pev->uprobes;
3180 		tev->nargs = pev->nargs;
3181 		if (tev->nargs) {
3182 			tev->args = zalloc(sizeof(struct probe_trace_arg) *
3183 					   tev->nargs);
3184 			if (tev->args == NULL)
3187 		for (i = 0; i < tev->nargs; i++) {
3189 				tev->args[i].name =
3193 			tev->args[i].value = strdup_or_goto(pev->args[i].var,
3196 				tev->args[i].type =
3200 		arch__fix_tev_from_maps(pev, tev, map, sym);
3224 	struct probe_trace_event *tev;
3237 	 * Only one tev can be generated by this.
3239 	*tevs = zalloc(sizeof(*tev));
3243 	tev = *tevs;
3244 	tp = &tev->point;
3253 	tev->uprobes = pev->uprobes;
3265 	if ((!tev->uprobes) &&
3266 	    (kprobe_warn_out_range(tev->point.symbol,
3267 				   tev->point.address))) {
3281 	if (tev->group) {
3282 		tev->group = strdup(pev->group);
3283 		if (!tev->group)
3288 		tev->event = strdup(pev->event);
3289 		if (!tev->event)
3293 	tev->nargs = pev->nargs;
3294 	tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
3295 	if (!tev->args)
3298 	for (i = 0; i < tev->nargs; i++)
3299 		copy_to_probe_trace_arg(&tev->args[i], &pev->args[i]);
3450 	struct probe_trace_event *tev;
3480 	*tevs = zalloc(ret * sizeof(*tev));
3488 		tev = &(*tevs)[i++];
3489 		ret = parse_probe_trace_command(node->s, tev);
3493 		tev->uprobes = pev->uprobes;
3558 static int show_probe_trace_event(struct probe_trace_event *tev)
3560 	char *buf = synthesize_probe_trace_command(tev);
3577 	struct probe_trace_event *tev;
3587 			tev = &pev->tevs[i];
3589 			if (!tev->point.symbol && !pev->uprobes)
3592 			/* Set new name for tev (and update namelist) */
3593 			ret = probe_trace_event__set_name(tev, pev,
3596 				ret = show_probe_trace_event(tev);
3604 static int show_bootconfig_event(struct probe_trace_event *tev)
3606 	struct probe_trace_point *tp = &tev->point;
3616 		err = synthesize_probe_trace_args(tev, &buf);
3632 	struct probe_trace_event *tev;
3650 			tev = &pev->tevs[i];
3652 			if (!tev->point.symbol && !pev->uprobes)
3655 			/* Set new name for tev (and update namelist) */
3656 			ret = probe_trace_event__set_name(tev, pev,
3661 			if (!cur_name || strcmp(cur_name, tev->event)) {
3663 					cur_name ? "\n" : "", tev->event);
3664 				cur_name = tev->event;
3667 			ret = show_bootconfig_event(tev);