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TOMOYO Linux Cross Reference
Linux/tools/lib/traceevent/plugin_hrtimer.c

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  1 /*
  2  * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
  3  * Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net>
  4  *
  5  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  6  * This program is free software; you can redistribute it and/or
  7  * modify it under the terms of the GNU Lesser General Public
  8  * License as published by the Free Software Foundation;
  9  * version 2.1 of the License (not later!)
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU Lesser General Public License for more details.
 15  *
 16  * You should have received a copy of the GNU Lesser General Public
 17  * License along with this program; if not,  see <http://www.gnu.org/licenses>
 18  *
 19  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 20  */
 21 #include <stdio.h>
 22 #include <stdlib.h>
 23 #include <string.h>
 24 
 25 #include "event-parse.h"
 26 
 27 static int timer_expire_handler(struct trace_seq *s,
 28                                 struct pevent_record *record,
 29                                 struct event_format *event, void *context)
 30 {
 31         trace_seq_printf(s, "hrtimer=");
 32 
 33         if (pevent_print_num_field(s, "0x%llx", event, "timer",
 34                                    record, 0) == -1)
 35                 pevent_print_num_field(s, "0x%llx", event, "hrtimer",
 36                                        record, 1);
 37 
 38         trace_seq_printf(s, " now=");
 39 
 40         pevent_print_num_field(s, "%llu", event, "now", record, 1);
 41 
 42         pevent_print_func_field(s, " function=%s", event, "function",
 43                                 record, 0);
 44         return 0;
 45 }
 46 
 47 static int timer_start_handler(struct trace_seq *s,
 48                                struct pevent_record *record,
 49                                struct event_format *event, void *context)
 50 {
 51         trace_seq_printf(s, "hrtimer=");
 52 
 53         if (pevent_print_num_field(s, "0x%llx", event, "timer",
 54                                    record, 0) == -1)
 55                 pevent_print_num_field(s, "0x%llx", event, "hrtimer",
 56                                        record, 1);
 57 
 58         pevent_print_func_field(s, " function=%s", event, "function",
 59                                 record, 0);
 60 
 61         trace_seq_printf(s, " expires=");
 62         pevent_print_num_field(s, "%llu", event, "expires", record, 1);
 63 
 64         trace_seq_printf(s, " softexpires=");
 65         pevent_print_num_field(s, "%llu", event, "softexpires", record, 1);
 66         return 0;
 67 }
 68 
 69 int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
 70 {
 71         pevent_register_event_handler(pevent, -1,
 72                                       "timer", "hrtimer_expire_entry",
 73                                       timer_expire_handler, NULL);
 74 
 75         pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start",
 76                                       timer_start_handler, NULL);
 77         return 0;
 78 }
 79 
 80 void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
 81 {
 82         pevent_unregister_event_handler(pevent, -1,
 83                                         "timer", "hrtimer_expire_entry",
 84                                         timer_expire_handler, NULL);
 85 
 86         pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
 87                                         timer_start_handler, NULL);
 88 }
 89 

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