Commit | Line | Data |
---|---|---|
ee53bbd1 SRRH |
1 | |
2 | #undef TRACE_SYSTEM_VAR | |
3 | ||
4 | #ifdef CONFIG_PERF_EVENTS | |
5 | ||
6 | #undef __entry | |
7 | #define __entry entry | |
8 | ||
9 | #undef __get_dynamic_array | |
10 | #define __get_dynamic_array(field) \ | |
11 | ((void *)__entry + (__entry->__data_loc_##field & 0xffff)) | |
12 | ||
13 | #undef __get_dynamic_array_len | |
14 | #define __get_dynamic_array_len(field) \ | |
15 | ((__entry->__data_loc_##field >> 16) & 0xffff) | |
16 | ||
17 | #undef __get_str | |
18 | #define __get_str(field) (char *)__get_dynamic_array(field) | |
19 | ||
20 | #undef __get_bitmask | |
21 | #define __get_bitmask(field) (char *)__get_dynamic_array(field) | |
22 | ||
23 | #undef __perf_addr | |
24 | #define __perf_addr(a) (__addr = (a)) | |
25 | ||
26 | #undef __perf_count | |
27 | #define __perf_count(c) (__count = (c)) | |
28 | ||
29 | #undef __perf_task | |
30 | #define __perf_task(t) (__task = (t)) | |
31 | ||
32 | #undef DECLARE_EVENT_CLASS | |
33 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ | |
34 | static notrace void \ | |
35 | perf_trace_##call(void *__data, proto) \ | |
36 | { \ | |
2425bcb9 | 37 | struct trace_event_call *event_call = __data; \ |
62323a14 | 38 | struct trace_event_data_offsets_##call __maybe_unused __data_offsets;\ |
a7237765 | 39 | struct trace_event_raw_##call *entry; \ |
ee53bbd1 SRRH |
40 | struct pt_regs *__regs; \ |
41 | u64 __addr = 0, __count = 1; \ | |
42 | struct task_struct *__task = NULL; \ | |
43 | struct hlist_head *head; \ | |
44 | int __entry_size; \ | |
45 | int __data_size; \ | |
46 | int rctx; \ | |
47 | \ | |
d0ee8f4a | 48 | __data_size = trace_event_get_offsets_##call(&__data_offsets, args); \ |
ee53bbd1 SRRH |
49 | \ |
50 | head = this_cpu_ptr(event_call->perf_events); \ | |
51 | if (__builtin_constant_p(!__task) && !__task && \ | |
52 | hlist_empty(head)) \ | |
53 | return; \ | |
54 | \ | |
55 | __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\ | |
56 | sizeof(u64)); \ | |
57 | __entry_size -= sizeof(u32); \ | |
58 | \ | |
59 | entry = perf_trace_buf_prepare(__entry_size, \ | |
60 | event_call->event.type, &__regs, &rctx); \ | |
61 | if (!entry) \ | |
62 | return; \ | |
63 | \ | |
64 | perf_fetch_caller_regs(__regs); \ | |
65 | \ | |
66 | tstruct \ | |
67 | \ | |
68 | { assign; } \ | |
69 | \ | |
70 | perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \ | |
71 | __count, __regs, head, __task); \ | |
72 | } | |
73 | ||
74 | /* | |
75 | * This part is compiled out, it is only here as a build time check | |
76 | * to make sure that if the tracepoint handling changes, the | |
77 | * perf probe will fail to compile unless it too is updated. | |
78 | */ | |
79 | #undef DEFINE_EVENT | |
80 | #define DEFINE_EVENT(template, call, proto, args) \ | |
81 | static inline void perf_test_probe_##call(void) \ | |
82 | { \ | |
83 | check_trace_callback_type_##call(perf_trace_##template); \ | |
84 | } | |
85 | ||
86 | ||
87 | #undef DEFINE_EVENT_PRINT | |
88 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ | |
89 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) | |
90 | ||
91 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | |
92 | #endif /* CONFIG_PERF_EVENTS */ |