kernel/trace/trace_events.c

87 	struct ftrace_event_field *field;
89 	list_for_each_entry(field, head, link) {
90 		if (!strcmp(field->name, name))
91 			return field;
100 	struct ftrace_event_field *field;
104 	field = __find_event_field(head, name);
105 	if (field)
106 		return field;
108 	field = __find_event_field(&ftrace_generic_fields, name);
109 	if (field)
110 		return field;
119 	struct ftrace_event_field *field;
121 	field = kmem_cache_alloc(field_cachep, GFP_TRACE);
122 	if (!field)
125 	field->name = name;
126 	field->type = type;
129 		field->filter_type = filter_assign_type(type);
131 		field->filter_type = filter_type;
133 	field->offset = offset;
134 	field->size = size;
135 	field->is_signed = is_signed;
136 	field->len = len;
138 	list_add(&field->link, head);
219 	struct ftrace_event_field *field, *next;
223 	list_for_each_entry_safe(field, next, head, link) {
224 		list_del(&field->link);
225 		kmem_cache_free(field_cachep, field);
240 	 * head->next points to the last field with the largest offset,
248  * Check if the referenced field is an array and return true,
253 	struct trace_event_fields *field = call->class->fields_array;
267 	for (; field->type; field++) {
268 		if (strncmp(field->name, fmt, len) ||
269 		    field->name[len])
271 		array_descriptor = strchr(field->type, '[');
1576 	struct ftrace_event_field *field;
1596 	field = list_entry(v, struct ftrace_event_field, link);
1600 	 *	field:TYPE VAR
1602 	 *	field:TYPE VAR[LEN]
1604 	array_descriptor = strchr(field->type, '[');
1606 	if (str_has_prefix(field->type, "__data_loc"))
1611 			   field->type, field->name, field->offset,
1612 			   field->size, !!field->is_signed);
1613 	else if (field->len)
1615 			   (int)(array_descriptor - field->type),
1616 			   field->type, field->name,
1617 			   field->len, field->offset,
1618 			   field->size, !!field->is_signed);
1621 				(int)(array_descriptor - field->type),
1622 				field->type, field->name,
1623 				field->offset, field->size, !!field->is_signed);
2453 		struct trace_event_fields *field = call->class->fields_array;
2456 		for (; field->type; field++) {
2457 			if (field->type == TRACE_FUNCTION_TYPE) {
2458 				field->define_fields(call);
2462 			offset = ALIGN(offset, field->align);
2463 			ret = trace_define_field_ext(call, field->type, field->name,
2464 						 offset, field->size,
2465 						 field->is_signed, field->filter_type,
2466 						 field->len);
2472 			offset += field->size;
2858 	struct ftrace_event_field *field;
2864 	/* Dynamic events should never have field maps */
2869 	list_for_each_entry(field, head, link) {
2870 		ptr = strchr(field->type, '[');
2881 		str = kstrdup(field->type, GFP_KERNEL);
2884 		ptr = str + (ptr - field->type);
2900 		field->type = str;
3687 	 * We use the callback data field (which is a pointer)