kernel/trace/trace_events_filter.c

88 	int			not;
111 	C(FIELD_NOT_FOUND,	"Field not found"),			\
119 	C(NO_FUNCTION,		"Function not found"),			\
133 /* Called after a '!' character but "!=" and "!~" are not "not"s */
239  * To simplify the logic, the labels will start at 0 and not 1.
263  *    and does not affect other predicates later on.
269  *    previous program index (this will not be its final value).
277  * #7 The top of the stack holds not only the current invert value, but also
295  *    Note, this is called when the next token is not an "&&". As stated before,
296  *    "&&" takes higher precedence, and "||" should not be processed yet if the
311  * previous index and not the "l" label. The target holds the index into the
317  * next token after "c" is not "&&" but the end of input, we first process the
335  * (Notice we did not process "||")
766 	match = (val == *addr) ^ pred->not;				\
810 	/* For safety, do not trust the string pointer */
844 	match = cmp ^ pred->not;
857 	match = cmp ^ pred->not;
907 	match = cmp ^ pred->not;
917  * from the field itself, not the event entry.
930 	match = cmp ^ pred->not;
998 	return cmp ^ pred->not;
1020  * - @str might not be NULL-terminated if it's of type DYN_STRING
1071  * @not:    tell whether the match will have to be inverted
1080  *  not returns 1 if buff started with a '!'
1083 enum regex_type filter_parse_regex(char *buff, int len, char **search, int *not)
1089 		*not = 1;
1093 		*not = 0;
1131 		type = filter_parse_regex(r->pattern, r->len, &search, &pred->not);
1137 	/* MATCH_INDEX should not happen, but if it does, match full */
1658 		 * But the string does not need to be surrounded by quotes.
1669 		 * Quotes are not required, but if they exist then we need
1800 				pred->not = 1;
1825 			pred->not = 1;
1897 		/* Make sure the field is not a string */
1943 				pred->not = 1;
2364 		/* Make sure the filter is not being used */
2789 		 * The preemption disabling is not really needed for self