diff options
Diffstat (limited to 'tools/lib/traceevent/plugins/plugin_hrtimer.c')
-rw-r--r-- | tools/lib/traceevent/plugins/plugin_hrtimer.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/tools/lib/traceevent/plugins/plugin_hrtimer.c b/tools/lib/traceevent/plugins/plugin_hrtimer.c new file mode 100644 index 000000000..d98466788 --- /dev/null +++ b/tools/lib/traceevent/plugins/plugin_hrtimer.c @@ -0,0 +1,74 @@ +// SPDX-License-Identifier: LGPL-2.1 +/* + * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> + * Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net> + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "event-parse.h" +#include "trace-seq.h" + +static int timer_expire_handler(struct trace_seq *s, + struct tep_record *record, + struct tep_event *event, void *context) +{ + trace_seq_printf(s, "hrtimer="); + + if (tep_print_num_field(s, "0x%llx", event, "timer", + record, 0) == -1) + tep_print_num_field(s, "0x%llx", event, "hrtimer", + record, 1); + + trace_seq_printf(s, " now="); + + tep_print_num_field(s, "%llu", event, "now", record, 1); + + tep_print_func_field(s, " function=%s", event, "function", + record, 0); + return 0; +} + +static int timer_start_handler(struct trace_seq *s, + struct tep_record *record, + struct tep_event *event, void *context) +{ + trace_seq_printf(s, "hrtimer="); + + if (tep_print_num_field(s, "0x%llx", event, "timer", + record, 0) == -1) + tep_print_num_field(s, "0x%llx", event, "hrtimer", + record, 1); + + tep_print_func_field(s, " function=%s", event, "function", + record, 0); + + trace_seq_printf(s, " expires="); + tep_print_num_field(s, "%llu", event, "expires", record, 1); + + trace_seq_printf(s, " softexpires="); + tep_print_num_field(s, "%llu", event, "softexpires", record, 1); + return 0; +} + +int TEP_PLUGIN_LOADER(struct tep_handle *tep) +{ + tep_register_event_handler(tep, -1, + "timer", "hrtimer_expire_entry", + timer_expire_handler, NULL); + + tep_register_event_handler(tep, -1, "timer", "hrtimer_start", + timer_start_handler, NULL); + return 0; +} + +void TEP_PLUGIN_UNLOADER(struct tep_handle *tep) +{ + tep_unregister_event_handler(tep, -1, + "timer", "hrtimer_expire_entry", + timer_expire_handler, NULL); + + tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start", + timer_start_handler, NULL); +} |