Backporting hrtimer plugin. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: David Ahern <[email protected]> --- tools/lib/traceevent/Makefile | 2 +- tools/lib/traceevent/plugin_hrtimer.c | 94 +++++++++++++++++++++++++++++++++++ 2 files changed, 95 insertions(+), 1 deletion(-) create mode 100644 tools/lib/traceevent/plugin_hrtimer.c
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile index 178cfa1..6e29f26 100644 --- a/tools/lib/traceevent/Makefile +++ b/tools/lib/traceevent/Makefile @@ -208,7 +208,7 @@ $(obj)/%.o: $(src)/%.c PEVENT_LIB_OBJS = event-parse.o event-plugin.o trace-seq.o parse-filter.o parse-utils.o event-option.o PEVENT_LIB_OBJS += kbuffer-parse.o -PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o +PLUGIN_OBJS = plugin_jbd2.o plugin_blk.o plugin_hrtimer.o PLUGINS := $(PLUGIN_OBJS:.o=.so) diff --git a/tools/lib/traceevent/plugin_hrtimer.c b/tools/lib/traceevent/plugin_hrtimer.c new file mode 100644 index 0000000..e7fb195 --- /dev/null +++ b/tools/lib/traceevent/plugin_hrtimer.c @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <[email protected]> + * Copyright (C) 2009 Johannes Berg <[email protected]> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License (not later!) + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <http://www.gnu.org/licenses> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "event-parse.h" + +static int timer_expire_handler(struct trace_seq *s, + struct pevent_record *record, + struct event_format *event, void *context) +{ + trace_seq_printf(s, "hrtimer="); + + if (pevent_print_num_field(s, "0x%llx", event, "timer", + record, 0) == -1) + pevent_print_num_field(s, "0x%llx", event, "hrtimer", + record, 1); + + trace_seq_printf(s, " now="); + + pevent_print_num_field(s, "%llu", event, "now", record, 1); + + pevent_print_func_field(s, " function=%s", event, "function", + record, 0); + + return 0; +} + +static int timer_start_handler(struct trace_seq *s, struct pevent_record *record, + struct event_format *event, void *context) +{ + struct pevent *pevent = event->pevent; + struct format_field *fn = pevent_find_field(event, "function"); + void *data = record->data; + + trace_seq_printf(s, "hrtimer="); + + if (pevent_print_num_field(s, "0x%llx", event, "timer", + record, 0) == -1) + pevent_print_num_field(s, "0x%llx", event, "hrtimer", + record, 1); + + if (!fn) { + trace_seq_printf(s, " function=MISSING"); + } else { + unsigned long long function; + const char *func; + + if (pevent_read_number_field(fn, data, &function)) + trace_seq_printf(s, " function=INVALID"); + + func = pevent_find_function(pevent, function); + + trace_seq_printf(s, " function=%s", func); + } + + trace_seq_printf(s, " expires="); + pevent_print_num_field(s, "%llu", event, "expires", record, 1); + + trace_seq_printf(s, " softexpires="); + pevent_print_num_field(s, "%llu", event, "softexpires", record, 1); + + return 0; +} + +int PEVENT_PLUGIN_LOADER(struct pevent *pevent) +{ + pevent_register_event_handler(pevent, -1, "timer", "hrtimer_expire_entry", + timer_expire_handler, NULL); + + pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start", + timer_start_handler, NULL); + + return 0; +} -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
