kernel/trace/trace_events_filter.c

15  * along with this program; if not, write to the Free Software
86 	"Field not found",
96 	int op;
101 	int op;
134 	switch (pred->op) {						\
162 	match = (val == *addr) ^ pred->not;				\
204 	match = cmp ^ pred->not;
219 	match = cmp ^ pred->not;
245 	match = cmp ^ pred->not;
264  * - @str might not be NULL-terminated if it's of type DYN_STRING
304  * @not:    tell whether the match will have to be inverted
313  *  not returns 1 if buff started with a '!'
316 enum regex_type filter_parse_regex(char *buff, int len, char **search, int *not)
322 		*not = 1;
326 		*not = 0;
354 	int not = 0;
356 	if (pred->op == OP_GLOB) {
357 		type = filter_parse_regex(r->pattern, r->len, &search, &not);
377 	pred->not ^= not;
708 static int is_legal_op(struct ftrace_event_field *field, int op)
711 	    (op != OP_EQ && op != OP_NE && op != OP_GLOB))
713 	if (!is_string_field(field) && op == OP_GLOB)
719 static filter_pred_fn_t select_comparison_fn(int op, int field_size,
726 		if (op == OP_EQ || op == OP_NE)
734 		if (op == OP_EQ || op == OP_NE)
742 		if (op == OP_EQ || op == OP_NE)
750 		if (op == OP_EQ || op == OP_NE)
775 	if (pred->op == OP_AND) {
779 	} else if (pred->op == OP_OR) {
793 	if (!is_legal_op(field, pred->op)) {
819 		fn = select_comparison_fn(pred->op, field->size,
827 	if (pred->op == OP_NE)
828 		pred->not = 1;
932 static int filter_opstack_push(struct filter_parse_state *ps, int op)
940 	opstack_op->op = op;
960 	return opstack_op->op;
966 	int op;
972 	op = opstack_op->op;
977 	return op;
999 	elt->op = OP_NONE;
1011 static int postfix_append_op(struct filter_parse_state *ps, int op)
1019 	elt->op = op;
1042 	int op, top_op;
1058 			op = infix_get_op(ps, ch);
1059 			if (op == OP_NONE) {
1071 				if (!is_precedence_lower(ps, top_op, op)) {
1079 			filter_opstack_push(ps, op);
1131 static struct filter_pred *create_pred(int op, char *operand1, char *operand2)
1148 	pred->op = op;
1153 static struct filter_pred *create_logical_pred(int op)
1161 	pred->op = op;
1172 		if (elt->op == OP_NONE)
1175 		if (elt->op == OP_AND || elt->op == OP_OR) {
1207 		if (elt->op == OP_NONE) {
1224 		if (elt->op == OP_AND || elt->op == OP_OR) {
1225 			pred = create_logical_pred(elt->op);
1234 		pred = create_pred(elt->op, operand1, operand2);