Exemple #1
0
int
parse_callchain_report_opt(const char *arg)
{
	char *tok;
	char *endptr;
	bool minpcnt_set = false;

	symbol_conf.use_callchain = true;

	if (!arg)
		return 0;

	while ((tok = strtok((char *)arg, ",")) != NULL) {
		if (!strncmp(tok, "none", strlen(tok))) {
			callchain_param.mode = CHAIN_NONE;
			symbol_conf.use_callchain = false;
			return 0;
		}

		if (!parse_callchain_mode(tok) ||
		    !parse_callchain_order(tok) ||
		    !parse_callchain_sort_key(tok)) {
			/* parsing ok - move on to the next */
		} else if (!minpcnt_set) {
			/* try to get the min percent */
			callchain_param.min_percent = strtod(tok, &endptr);
			if (tok == endptr)
				return -1;
			minpcnt_set = true;
		} else {
			/* try print limit at last */
			callchain_param.print_limit = strtoul(tok, &endptr, 0);
			if (tok == endptr)
				return -1;
		}

		arg = NULL;
	}

	if (callchain_register_param(&callchain_param) < 0) {
		pr_err("Can't register callchain params\n");
		return -1;
	}
	return 0;
}
Exemple #2
0
int perf_callchain_config(const char *var, const char *value)
{
	char *endptr;

	if (prefixcmp(var, "call-graph."))
		return 0;
	var += sizeof("call-graph.") - 1;

	if (!strcmp(var, "record-mode"))
		return parse_callchain_record_opt(value, &callchain_param);
	if (!strcmp(var, "dump-size")) {
		unsigned long size = 0;
		int ret;

		ret = get_stack_size(value, &size);
		callchain_param.dump_size = size;

		return ret;
	}
	if (!strcmp(var, "print-type"))
		return parse_callchain_mode(value);
	if (!strcmp(var, "order"))
		return parse_callchain_order(value);
	if (!strcmp(var, "sort-key"))
		return parse_callchain_sort_key(value);
	if (!strcmp(var, "threshold")) {
		callchain_param.min_percent = strtod(value, &endptr);
		if (value == endptr) {
			pr_err("Invalid callchain threshold: %s\n", value);
			return -1;
		}
	}
	if (!strcmp(var, "print-limit")) {
		callchain_param.print_limit = strtod(value, &endptr);
		if (value == endptr) {
			pr_err("Invalid callchain print limit: %s\n", value);
			return -1;
		}
	}

	return 0;
}
Exemple #3
0
int perf_callchain_config(const char *var, const char *value)
{
	char *endptr;

	if (prefixcmp(var, "call-graph."))
		return 0;
	var += sizeof("call-graph.") - 1;

	if (!strcmp(var, "record-mode"))
		return parse_callchain_record_opt(value, &callchain_param);
#ifdef HAVE_DWARF_UNWIND_SUPPORT
	if (!strcmp(var, "dump-size")) {
		unsigned long size = 0;
		int ret;

		ret = get_stack_size(value, &size);
		callchain_param.dump_size = size;

		return ret;
	}
#endif
	if (!strcmp(var, "print-type"))
		return parse_callchain_mode(value);
	if (!strcmp(var, "order"))
		return parse_callchain_order(value);
	if (!strcmp(var, "sort-key"))
		return parse_callchain_sort_key(value);
	if (!strcmp(var, "threshold")) {
		callchain_param.min_percent = strtod(value, &endptr);
		if (value == endptr)
			return -1;
	}
	if (!strcmp(var, "print-limit")) {
		callchain_param.print_limit = strtod(value, &endptr);
		if (value == endptr)
			return -1;
	}

	return 0;
}
Exemple #4
0
static int
__parse_callchain_report_opt(const char *arg, bool allow_record_opt)
{
	char *tok;
	char *endptr, *saveptr = NULL;
	bool minpcnt_set = false;
	bool record_opt_set = false;
	bool try_stack_size = false;

	callchain_param.enabled = true;
	symbol_conf.use_callchain = true;

	if (!arg)
		return 0;

	while ((tok = strtok_r((char *)arg, ",", &saveptr)) != NULL) {
		if (!strncmp(tok, "none", strlen(tok))) {
			callchain_param.mode = CHAIN_NONE;
			callchain_param.enabled = false;
			symbol_conf.use_callchain = false;
			return 0;
		}

		if (!parse_callchain_mode(tok) ||
		    !parse_callchain_order(tok) ||
		    !parse_callchain_sort_key(tok) ||
		    !parse_callchain_value(tok)) {
			/* parsing ok - move on to the next */
			try_stack_size = false;
			goto next;
		} else if (allow_record_opt && !record_opt_set) {
			if (parse_callchain_record(tok, &callchain_param))
				goto try_numbers;

			/* assume that number followed by 'dwarf' is stack size */
			if (callchain_param.record_mode == CALLCHAIN_DWARF)
				try_stack_size = true;

			record_opt_set = true;
			goto next;
		}

try_numbers:
		if (try_stack_size) {
			unsigned long size = 0;

			if (get_stack_size(tok, &size) < 0)
				return -1;
			callchain_param.dump_size = size;
			try_stack_size = false;
		} else if (!minpcnt_set) {
			/* try to get the min percent */
			callchain_param.min_percent = strtod(tok, &endptr);
			if (tok == endptr)
				return -1;
			minpcnt_set = true;
		} else {
			/* try print limit at last */
			callchain_param.print_limit = strtoul(tok, &endptr, 0);
			if (tok == endptr)
				return -1;
		}
next:
		arg = NULL;
	}

	if (callchain_register_param(&callchain_param) < 0) {
		pr_err("Can't register callchain params\n");
		return -1;
	}
	return 0;
}