projects / ust.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 0c0686ee NC |
26 | #include <stdio.h> |
| 27 | ||
| 22d72948 NC |
28 | /* |
| 29 | * Stage 1. Create a struct and a printf calling function | |
| 30 | * that is connected to the tracepoint at load time. | |
| 31 | */ | |
| 32 | #undef TRACE_EVENT | |
| 33 | #define TRACE_EVENT(name, proto, args, tstruct, assign, print) \ | |
| 34 | DECLARE_TRACE_EVENT_CLASS(name, \ | |
| 35 | PARAMS(proto), \ | |
| 36 | PARAMS(args), \ | |
| 37 | PARAMS(tstruct), \ | |
| 38 | PARAMS(assign), \ | |
| 39 | PARAMS(print)); \ | |
| 40 | DEFINE_TRACE_EVENT(name, name, PARAMS(proto), PARAMS(args)); | |
| 41 | ||
| 42 | #undef __field | |
| 43 | #define __field(type, item) type item; | |
| 44 | ||
| 45 | #undef TP_STRUCT__entry | |
| 46 | #define TP_STRUCT__entry(args...) args | |
| 47 | ||
| 48 | #undef TP_printf | |
| 49 | #define TP_printf(fmt, args...) fmt "\n", args | |
| 50 | ||
| 51 | #undef TP_fast_assign | |
| 52 | #define TP_fast_assign(args...) args | |
| 53 | ||
| 54 | #undef DEFINE_TRACE_EVENT | |
| 55 | #define DEFINE_TRACE_EVENT(template, name, proto, args) | |
| 56 | ||
| 57 | ||
| 58 | #undef DECLARE_TRACE_EVENT_CLASS | |
| 59 | #define DECLARE_TRACE_EVENT_CLASS(name, proto, args, tstruct, assign, print) \ | |
| 60 | struct trace_raw_##name { \ | |
| 61 | tstruct \ | |
| 62 | }; \ | |
| 9dec086e | 63 | static void trace_printf_##name(void *dummy, proto) \ |
| 22d72948 NC |
64 | { \ |
| 65 | struct trace_raw_##name entry_struct, *__entry; \ | |
| 66 | __entry = &entry_struct; \ | |
| 67 | { assign }; \ | |
| 68 | \ | |
| 69 | printf(print); \ | |
| 70 | } \ | |
| 0c0686ee NC |
71 | static inline int register_event_##name(void *data) \ |
| 72 | { \ | |
| 73 | return register_trace_##name(trace_printf_##name, data); \ | |
| 74 | } \ | |
| 75 | static inline int unregister_event_##name(void *data) \ | |
| 76 | { \ | |
| 77 | return unregister_trace_##name(trace_printf_##name, data); \ | |
| 78 | } \ | |
| fc1caebc | 79 | struct trace_event __event_##name = { \ |
| 0c0686ee NC |
80 | __tpstrtab_##name, \ |
| 81 | register_event_##name, \ | |
| 82 | unregister_event_##name \ | |
| 83 | }; \ | |
| fc1caebc MD |
84 | static struct trace_event * const __event_ptrs_##name \ |
| 85 | __attribute__((used, section("__trace_events_ptrs"))) = \ | |
| 86 | &__event_##name; \ | |
| 87 | \ | |
| 22d72948 NC |
88 | static void __attribute__((constructor)) init_##name() \ |
| 89 | { \ | |
| fbae86d6 | 90 | void *dummy = NULL; \ |
| 9dec086e | 91 | register_trace_##name(trace_printf_##name, dummy); \ |
| 22d72948 NC |
92 | } |
| 93 | ||
| 94 | ||
| 95 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |