2167 static void addr_filter__free_str(struct addr_filter *filt)  in addr_filter__free_str()  argument
2169 	zfree(&filt->str);  in addr_filter__free_str()
2170 	filt->action   = NULL;  in addr_filter__free_str()
2171 	filt->sym_from = NULL;  in addr_filter__free_str()
2172 	filt->sym_to   = NULL;  in addr_filter__free_str()
2173 	filt->filename = NULL;  in addr_filter__free_str()
2178 	struct addr_filter *filt = zalloc(sizeof(*filt));  in addr_filter__new()  local
2180 	if (filt)  in addr_filter__new()
2181 		INIT_LIST_HEAD(&filt->list);  in addr_filter__new()
2183 	return filt;  in addr_filter__new()
2186 static void addr_filter__free(struct addr_filter *filt)  in addr_filter__free()  argument
2188 	if (filt)  in addr_filter__free()
2189 		addr_filter__free_str(filt);  in addr_filter__free()
2190 	free(filt);  in addr_filter__free()
2194 			      struct addr_filter *filt)  in addr_filters__add()  argument
2196 	list_add_tail(&filt->list, &filts->head);  in addr_filters__add()
2201 			      struct addr_filter *filt)  in addr_filters__del()  argument
2203 	list_del_init(&filt->list);  in addr_filters__del()
2215 	struct addr_filter *filt, *n;  in addr_filters__exit()  local
2217 	list_for_each_entry_safe(filt, n, &filts->head, list) {  in addr_filters__exit()
2218 		addr_filters__del(filts, filt);  in addr_filters__exit()
2219 		addr_filter__free(filt);  in addr_filters__exit()
2259 static int parse_action(struct addr_filter *filt)  in parse_action()  argument
2261 	if (!strcmp(filt->action, "filter")) {  in parse_action()
2262 		filt->start = true;  in parse_action()
2263 		filt->range = true;  in parse_action()
2264 	} else if (!strcmp(filt->action, "start")) {  in parse_action()
2265 		filt->start = true;  in parse_action()
2266 	} else if (!strcmp(filt->action, "stop")) {  in parse_action()
2267 		filt->start = false;  in parse_action()
2268 	} else if (!strcmp(filt->action, "tracestop")) {  in parse_action()
2269 		filt->start = false;  in parse_action()
2270 		filt->range = true;  in parse_action()
2271 		filt->action += 5; /* Change 'tracestop' to 'stop' */  in parse_action()
2319 static int parse_one_filter(struct addr_filter *filt, const char **filter_inp)  in parse_one_filter()  argument
2324 	filt->str = fstr = strdup(*filter_inp);  in parse_one_filter()
2328 	err = parse_num_or_str(&fstr, NULL, &filt->action, " ");  in parse_one_filter()
2332 	err = parse_action(filt);  in parse_one_filter()
2336 	err = parse_addr_size(&fstr, &filt->addr, &filt->sym_from,  in parse_one_filter()
2337 			      &filt->sym_from_idx);  in parse_one_filter()
2345 		err = parse_addr_size(&fstr, &filt->size, &filt->sym_to,  in parse_one_filter()
2346 				      &filt->sym_to_idx);  in parse_one_filter()
2349 		filt->range = true;  in parse_one_filter()
2356 		err = parse_num_or_str(&fstr, NULL, &filt->filename, " ,");  in parse_one_filter()
2363 	*filter_inp += fstr - filt->str;  in parse_one_filter()
2368 	addr_filter__free_str(filt);  in parse_one_filter()
2376 	struct addr_filter *filt;  in addr_filters__parse_bare_filter()  local
2381 		filt = addr_filter__new();  in addr_filters__parse_bare_filter()
2382 		err = parse_one_filter(filt, &fstr);  in addr_filters__parse_bare_filter()
2384 			addr_filter__free(filt);  in addr_filters__parse_bare_filter()
2388 		addr_filters__add(filts, filt);  in addr_filters__parse_bare_filter()
2539 static int addr_filter__entire_kernel(struct addr_filter *filt)  in addr_filter__entire_kernel()  argument
2550 	filt->addr = args.start;  in addr_filter__entire_kernel()
2551 	filt->size = args.size;  in addr_filter__entire_kernel()
2556 static int check_end_after_start(struct addr_filter *filt, u64 start, u64 size)  in check_end_after_start()  argument
2558 	if (start + size >= filt->addr)  in check_end_after_start()
2561 	if (filt->sym_from) {  in check_end_after_start()
2563 		       filt->sym_to, start, filt->sym_from, filt->addr);  in check_end_after_start()
2566 		       filt->sym_to, start, filt->addr);  in check_end_after_start()
2572 static int addr_filter__resolve_kernel_syms(struct addr_filter *filt)  in addr_filter__resolve_kernel_syms()  argument
2583 	if (filt->sym_from && !strcmp(filt->sym_from, "*"))  in addr_filter__resolve_kernel_syms()
2584 		return addr_filter__entire_kernel(filt);  in addr_filter__resolve_kernel_syms()
2586 	if (filt->sym_from) {  in addr_filter__resolve_kernel_syms()
2587 		err = find_kern_sym(filt->sym_from, &start, &size,  in addr_filter__resolve_kernel_syms()
2588 				    filt->sym_from_idx);  in addr_filter__resolve_kernel_syms()
2591 		filt->addr = start;  in addr_filter__resolve_kernel_syms()
2592 		if (filt->range && !filt->size && !filt->sym_to) {  in addr_filter__resolve_kernel_syms()
2593 			filt->size = size;  in addr_filter__resolve_kernel_syms()
2598 	if (filt->sym_to) {  in addr_filter__resolve_kernel_syms()
2599 		err = find_kern_sym(filt->sym_to, &start, &size,  in addr_filter__resolve_kernel_syms()
2600 				    filt->sym_to_idx);  in addr_filter__resolve_kernel_syms()
2604 		err = check_end_after_start(filt, start, size);  in addr_filter__resolve_kernel_syms()
2607 		filt->size = start + size - filt->addr;  in addr_filter__resolve_kernel_syms()
2614 		       filt->sym_to ? filt->sym_to : filt->sym_from);  in addr_filter__resolve_kernel_syms()
2713 static int addr_filter__entire_dso(struct addr_filter *filt, struct dso *dso)  in addr_filter__entire_dso()  argument
2717 		       filt->filename);  in addr_filter__entire_dso()
2721 	filt->addr = 0;  in addr_filter__entire_dso()
2722 	filt->size = dso__data(dso)->file_size;  in addr_filter__entire_dso()
2727 static int addr_filter__resolve_syms(struct addr_filter *filt)  in addr_filter__resolve_syms()  argument
2733 	if (!filt->sym_from && !filt->sym_to)  in addr_filter__resolve_syms()
2736 	if (!filt->filename)  in addr_filter__resolve_syms()
2737 		return addr_filter__resolve_kernel_syms(filt);  in addr_filter__resolve_syms()
2739 	dso = load_dso(filt->filename);  in addr_filter__resolve_syms()
2741 		pr_err("Failed to load symbols from: %s\n", filt->filename);  in addr_filter__resolve_syms()
2745 	if (filt->sym_from && !strcmp(filt->sym_from, "*")) {  in addr_filter__resolve_syms()
2746 		err = addr_filter__entire_dso(filt, dso);  in addr_filter__resolve_syms()
2750 	if (filt->sym_from) {  in addr_filter__resolve_syms()
2751 		err = find_dso_sym(dso, filt->sym_from, &start, &size,  in addr_filter__resolve_syms()
2752 				   filt->sym_from_idx);  in addr_filter__resolve_syms()
2755 		filt->addr = start;  in addr_filter__resolve_syms()
2756 		if (filt->range && !filt->size && !filt->sym_to)  in addr_filter__resolve_syms()
2757 			filt->size = size;  in addr_filter__resolve_syms()
2760 	if (filt->sym_to) {  in addr_filter__resolve_syms()
2761 		err = find_dso_sym(dso, filt->sym_to, &start, &size,  in addr_filter__resolve_syms()
2762 				   filt->sym_to_idx);  in addr_filter__resolve_syms()
2766 		err = check_end_after_start(filt, start, size);  in addr_filter__resolve_syms()
2770 		filt->size = start + size - filt->addr;  in addr_filter__resolve_syms()
2779 static char *addr_filter__to_str(struct addr_filter *filt)  in addr_filter__to_str()  argument
2787 	if (filt->filename) {  in addr_filter__to_str()
2789 		fn = realpath(filt->filename, filename_buf);  in addr_filter__to_str()
2794 	if (filt->range) {  in addr_filter__to_str()
2796 			       filt->action, filt->addr, filt->size, at, fn);  in addr_filter__to_str()
2799 			       filt->action, filt->addr, at, fn);  in addr_filter__to_str()
2809 	struct addr_filter *filt;  in parse_addr_filter()  local
2825 	list_for_each_entry(filt, &filts.head, list) {  in parse_addr_filter()
2828 		err = addr_filter__resolve_syms(filt);  in parse_addr_filter()
2832 		new_filter = addr_filter__to_str(filt);  in parse_addr_filter()