Lines Matching refs:tu
88 static int register_uprobe_event(struct trace_uprobe *tu);
89 static int unregister_uprobe_event(struct trace_uprobe *tu);
208 base_addr = udd->bp_addr - udd->tu->offset;
264 static inline bool is_ret_probe(struct trace_uprobe *tu)
266 return tu->consumer.ret_handler != NULL;
271 struct trace_uprobe *tu = to_trace_uprobe(ev);
273 return trace_probe_is_enabled(&tu->tp);
276 static bool trace_uprobe_match_command_head(struct trace_uprobe *tu,
285 len = strlen(tu->filename);
286 if (strncmp(tu->filename, argv[0], len) || argv[0][len] != ':')
289 if (tu->ref_ctr_offset == 0)
291 (int)(sizeof(void *) * 2), tu->offset);
294 (int)(sizeof(void *) * 2), tu->offset,
295 tu->ref_ctr_offset);
301 return trace_probe_match_command_args(&tu->tp, argc, argv);
307 struct trace_uprobe *tu = to_trace_uprobe(ev);
310 strcmp(trace_probe_name(&tu->tp), event) == 0) &&
311 (!system || strcmp(trace_probe_group_name(&tu->tp), system) == 0) &&
312 trace_uprobe_match_command_head(tu, argc, argv);
333 struct trace_uprobe *tu;
336 tu = kzalloc(struct_size(tu, tp.args, nargs), GFP_KERNEL);
337 if (!tu)
340 ret = trace_probe_init(&tu->tp, event, group, true, nargs);
344 dyn_event_init(&tu->devent, &trace_uprobe_ops);
345 tu->consumer.handler = uprobe_dispatcher;
347 tu->consumer.ret_handler = uretprobe_dispatcher;
348 init_trace_uprobe_filter(tu->tp.event->filter);
349 return tu;
352 kfree(tu);
357 static void free_trace_uprobe(struct trace_uprobe *tu)
359 if (!tu)
362 path_put(&tu->path);
363 trace_probe_cleanup(&tu->tp);
364 kfree(tu->filename);
365 kfree(tu);
371 struct trace_uprobe *tu;
373 for_each_trace_uprobe(tu, pos)
374 if (strcmp(trace_probe_name(&tu->tp), event) == 0 &&
375 strcmp(trace_probe_group_name(&tu->tp), group) == 0)
376 return tu;
382 static int unregister_trace_uprobe(struct trace_uprobe *tu)
386 if (trace_probe_has_sibling(&tu->tp))
390 if (trace_event_dyn_busy(trace_probe_event_call(&tu->tp)))
393 ret = unregister_uprobe_event(tu);
398 dyn_event_remove(&tu->devent);
399 trace_probe_unlink(&tu->tp);
400 free_trace_uprobe(tu);
433 static int append_trace_uprobe(struct trace_uprobe *tu, struct trace_uprobe *to)
437 ret = trace_probe_compare_arg_type(&tu->tp, &to->tp);
444 if (trace_uprobe_has_same_uprobe(to, tu)) {
451 ret = trace_probe_append(&tu->tp, &to->tp);
453 dyn_event_add(&tu->devent, trace_probe_event_call(&tu->tp));
485 static int register_trace_uprobe(struct trace_uprobe *tu)
492 ret = validate_ref_ctr_offset(tu);
497 old_tu = find_probe_event(trace_probe_name(&tu->tp),
498 trace_probe_group_name(&tu->tp));
500 if (is_ret_probe(tu) != is_ret_probe(old_tu)) {
505 ret = append_trace_uprobe(tu, old_tu);
510 ret = register_uprobe_event(tu);
520 dyn_event_add(&tu->devent, trace_probe_event_call(&tu->tp));
534 struct trace_uprobe *tu;
671 tu = alloc_trace_uprobe(group, event, argc, is_return);
672 if (IS_ERR(tu)) {
673 ret = PTR_ERR(tu);
678 tu->offset = offset;
679 tu->ref_ctr_offset = ref_ctr_offset;
680 tu->path = path;
681 tu->filename = filename;
690 ret = traceprobe_parse_probe_arg(&tu->tp, i, argv[i], &ctx);
696 ptype = is_ret_probe(tu) ? PROBE_PRINT_RETURN : PROBE_PRINT_NORMAL;
697 ret = traceprobe_set_print_fmt(&tu->tp, ptype);
701 ret = register_trace_uprobe(tu);
706 free_trace_uprobe(tu);
737 struct trace_uprobe *tu = to_trace_uprobe(ev);
739 return unregister_trace_uprobe(tu);
745 struct trace_uprobe *tu = to_trace_uprobe(ev);
746 char c = is_ret_probe(tu) ? 'r' : 'p';
749 seq_printf(m, "%c:%s/%s %s:0x%0*lx", c, trace_probe_group_name(&tu->tp),
750 trace_probe_name(&tu->tp), tu->filename,
751 (int)(sizeof(void *) * 2), tu->offset);
753 if (tu->ref_ctr_offset)
754 seq_printf(m, "(0x%lx)", tu->ref_ctr_offset);
756 for (i = 0; i < tu->tp.nr_args; i++)
757 seq_printf(m, " %s=%s", tu->tp.args[i].name, tu->tp.args[i].comm);
817 struct trace_uprobe *tu;
822 tu = to_trace_uprobe(ev);
823 seq_printf(m, " %s %-44s %15lu\n", tu->filename,
824 trace_probe_name(&tu->tp), tu->nhit);
946 static void __uprobe_trace_func(struct trace_uprobe *tu,
955 struct trace_event_call *call = trace_probe_event_call(&tu->tp);
959 if (WARN_ON_ONCE(tu->tp.size + dsize > PAGE_SIZE))
965 esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
966 size = esize + tu->tp.size + dsize;
971 if (is_ret_probe(tu)) {
980 memcpy(data, ucb->buf, tu->tp.size + dsize);
986 static int uprobe_trace_func(struct trace_uprobe *tu, struct pt_regs *regs,
991 if (is_ret_probe(tu))
995 trace_probe_for_each_link_rcu(link, &tu->tp)
996 __uprobe_trace_func(tu, 0, regs, ucb, dsize, link->file);
1002 static void uretprobe_trace_func(struct trace_uprobe *tu, unsigned long func,
1009 trace_probe_for_each_link_rcu(link, &tu->tp)
1010 __uprobe_trace_func(tu, func, regs, ucb, dsize, link->file);
1020 struct trace_uprobe *tu;
1024 tu = trace_uprobe_primary_from_call(
1026 if (unlikely(!tu))
1029 if (is_ret_probe(tu)) {
1031 trace_probe_name(&tu->tp),
1036 trace_probe_name(&tu->tp),
1041 if (trace_probe_print_args(s, tu->tp.args, tu->tp.nr_args, data, entry) < 0)
1054 static int trace_uprobe_enable(struct trace_uprobe *tu, filter_func_t filter)
1058 tu->consumer.filter = filter;
1059 tu->inode = d_real_inode(tu->path.dentry);
1061 if (tu->ref_ctr_offset)
1062 ret = uprobe_register_refctr(tu->inode, tu->offset,
1063 tu->ref_ctr_offset, &tu->consumer);
1065 ret = uprobe_register(tu->inode, tu->offset, &tu->consumer);
1068 tu->inode = NULL;
1075 struct trace_uprobe *tu;
1077 tu = container_of(tp, struct trace_uprobe, tp);
1078 WARN_ON(!uprobe_filter_is_empty(tu->tp.event->filter));
1080 list_for_each_entry(tu, trace_probe_probe_list(tp), tp.list) {
1081 if (!tu->inode)
1084 uprobe_unregister(tu->inode, tu->offset, &tu->consumer);
1085 tu->inode = NULL;
1093 struct trace_uprobe *tu;
1117 tu = container_of(tp, struct trace_uprobe, tp);
1118 WARN_ON(!uprobe_filter_is_empty(tu->tp.event->filter));
1127 list_for_each_entry(tu, trace_probe_probe_list(tp), tp.list) {
1128 ret = trace_uprobe_enable(tu, filter);
1178 struct trace_uprobe *tu;
1180 tu = trace_uprobe_primary_from_call(event_call);
1181 if (unlikely(!tu))
1184 if (is_ret_probe(tu)) {
1193 return traceprobe_define_arg_fields(event_call, size, &tu->tp);
1273 struct trace_uprobe *tu;
1280 tu = container_of(tp, struct trace_uprobe, tp);
1281 if (trace_uprobe_filter_remove(tu->tp.event->filter, event))
1284 list_for_each_entry(tu, trace_probe_probe_list(tp), tp.list) {
1285 ret = uprobe_apply(tu->inode, tu->offset, &tu->consumer, false);
1297 struct trace_uprobe *tu;
1304 tu = container_of(tp, struct trace_uprobe, tp);
1305 if (trace_uprobe_filter_add(tu->tp.event->filter, event))
1308 list_for_each_entry(tu, trace_probe_probe_list(tp), tp.list) {
1309 err = uprobe_apply(tu->inode, tu->offset, &tu->consumer, true);
1323 struct trace_uprobe *tu;
1326 tu = container_of(uc, struct trace_uprobe, consumer);
1327 filter = tu->tp.event->filter;
1336 static void __uprobe_perf_func(struct trace_uprobe *tu,
1340 struct trace_event_call *call = trace_probe_event_call(&tu->tp);
1357 esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
1359 size = esize + tu->tp.size + dsize;
1373 if (is_ret_probe(tu)) {
1382 memcpy(data, ucb->buf, tu->tp.size + dsize);
1384 if (size - esize > tu->tp.size + dsize) {
1385 int len = tu->tp.size + dsize;
1397 static int uprobe_perf_func(struct trace_uprobe *tu, struct pt_regs *regs,
1400 if (!uprobe_perf_filter(&tu->consumer, 0, current->mm))
1403 if (!is_ret_probe(tu))
1404 __uprobe_perf_func(tu, 0, regs, ucb, dsize);
1408 static void uretprobe_perf_func(struct trace_uprobe *tu, unsigned long func,
1412 __uprobe_perf_func(tu, func, regs, ucb, dsize);
1421 struct trace_uprobe *tu;
1424 tu = find_probe_event(pevent, group);
1426 tu = trace_uprobe_primary_from_call(event->tp_event);
1427 if (!tu)
1430 *fd_type = is_ret_probe(tu) ? BPF_FD_TYPE_URETPROBE
1432 *filename = tu->filename;
1433 *probe_offset = tu->offset;
1475 struct trace_uprobe *tu;
1482 tu = container_of(con, struct trace_uprobe, consumer);
1483 tu->nhit++;
1485 udd.tu = tu;
1493 dsize = __get_data_size(&tu->tp, regs, NULL);
1494 esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
1497 store_trace_args(ucb->buf, &tu->tp, regs, NULL, esize, dsize);
1499 if (trace_probe_test_flag(&tu->tp, TP_FLAG_TRACE))
1500 ret |= uprobe_trace_func(tu, regs, ucb, dsize);
1503 if (trace_probe_test_flag(&tu->tp, TP_FLAG_PROFILE))
1504 ret |= uprobe_perf_func(tu, regs, ucb, dsize);
1513 struct trace_uprobe *tu;
1518 tu = container_of(con, struct trace_uprobe, consumer);
1520 udd.tu = tu;
1528 dsize = __get_data_size(&tu->tp, regs, NULL);
1529 esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu));
1532 store_trace_args(ucb->buf, &tu->tp, regs, NULL, esize, dsize);
1534 if (trace_probe_test_flag(&tu->tp, TP_FLAG_TRACE))
1535 uretprobe_trace_func(tu, func, regs, ucb, dsize);
1538 if (trace_probe_test_flag(&tu->tp, TP_FLAG_PROFILE))
1539 uretprobe_perf_func(tu, func, regs, ucb, dsize);
1555 static inline void init_trace_event_call(struct trace_uprobe *tu)
1557 struct trace_event_call *call = trace_probe_event_call(&tu->tp);
1565 static int register_uprobe_event(struct trace_uprobe *tu)
1567 init_trace_event_call(tu);
1569 return trace_probe_register_event_call(&tu->tp);
1572 static int unregister_uprobe_event(struct trace_uprobe *tu)
1574 return trace_probe_unregister_event_call(&tu->tp);
1583 struct trace_uprobe *tu;
1601 tu = alloc_trace_uprobe(UPROBE_EVENT_SYSTEM, "DUMMY_EVENT", 0,
1604 if (IS_ERR(tu)) {
1606 (int)PTR_ERR(tu));
1608 return ERR_CAST(tu);
1611 tu->offset = offs;
1612 tu->path = path;
1613 tu->ref_ctr_offset = ref_ctr_offset;
1614 tu->filename = kstrdup(name, GFP_KERNEL);
1615 if (!tu->filename) {
1620 init_trace_event_call(tu);
1622 ptype = is_ret_probe(tu) ? PROBE_PRINT_RETURN : PROBE_PRINT_NORMAL;
1623 if (traceprobe_set_print_fmt(&tu->tp, ptype) < 0) {
1628 return trace_probe_event_call(&tu->tp);
1630 free_trace_uprobe(tu);
1636 struct trace_uprobe *tu;
1638 tu = trace_uprobe_primary_from_call(event_call);
1640 free_trace_uprobe(tu);