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22d72948 NC |
1 | /* |
2 | * Copyright (C) 2009 Steven Rostedt <srostedt@redhat.com> | |
3 | * Copyright (C) 2010 Nils Carlson <nils.carlson@ericsson.com> | |
4 | * | |
5 | * This library is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU Lesser General Public | |
7 | * License as published by the Free Software Foundation; either | |
8 | * version 2.1 of the License, or (at your option) any later version. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
16 | * License along with this library; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | * | |
19 | */ | |
20 | ||
21 | /* | |
22 | * This whole file is currently a dummy, mapping a TRACE_EVENT | |
23 | * to a printf | |
24 | */ | |
25 | ||
26 | /* | |
27 | * Stage 1. Create a struct and a printf calling function | |
28 | * that is connected to the tracepoint at load time. | |
29 | */ | |
30 | #undef TRACE_EVENT | |
31 | #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ | |
32 | DECLARE_TRACE_EVENT_CLASS(name, \ | |
33 | PARAMS(proto), \ | |
34 | PARAMS(args), \ | |
35 | PARAMS(tstruct), \ | |
36 | PARAMS(assign), \ | |
37 | PARAMS(print)); \ | |
38 | DEFINE_TRACE_EVENT(name, name, PARAMS(proto), PARAMS(args)); | |
39 | ||
40 | #undef __field | |
41 | #define __field(type, item) type item; | |
42 | ||
43 | #undef TP_STRUCT__entry | |
44 | #define TP_STRUCT__entry(args...) args | |
45 | ||
46 | #undef TP_printf | |
47 | #define TP_printf(fmt, args...) fmt "\n", args | |
48 | ||
49 | #undef TP_fast_assign | |
50 | #define TP_fast_assign(args...) args | |
51 | ||
52 | #undef DEFINE_TRACE_EVENT | |
53 | #define DEFINE_TRACE_EVENT(template, name, proto, args) | |
54 | ||
55 | ||
56 | #undef DECLARE_TRACE_EVENT_CLASS | |
57 | #define DECLARE_TRACE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \ | |
58 | struct trace_raw_##name { \ | |
59 | tstruct \ | |
60 | }; \ | |
9dec086e | 61 | static void trace_printf_##name(void *dummy, proto) \ |
22d72948 NC |
62 | { \ |
63 | struct trace_raw_##name entry_struct, *__entry; \ | |
64 | __entry = &entry_struct; \ | |
65 | { assign }; \ | |
66 | \ | |
67 | printf(print); \ | |
68 | } \ | |
69 | static void __attribute__((constructor)) init_##name() \ | |
70 | { \ | |
9dec086e | 71 | void *dummy; \ |
22d72948 | 72 | printf("connecting tracepoint " #name "\n"); \ |
9dec086e | 73 | register_trace_##name(trace_printf_##name, dummy); \ |
22d72948 NC |
74 | } |
75 | ||
76 | ||
77 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |