diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-sched.c | 101 | ||||
| -rw-r--r-- | tools/perf/util/trace-event-parse.c | 23 | ||||
| -rw-r--r-- | tools/perf/util/trace-event.h | 3 |
3 files changed, 102 insertions, 25 deletions
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index de93a260452..0215936696e 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -653,6 +653,30 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head) return 0; } + +struct raw_event_sample { + u32 size; + char data[0]; +}; + +#define FILL_FIELD(ptr, field, event, data) \ + ptr.field = (typeof(ptr.field)) raw_field_value(event, #field, data) + +#define FILL_ARRAY(ptr, array, event, data) \ +do { \ + void *__array = raw_field_ptr(event, #array, data); \ + memcpy(ptr.array, __array, sizeof(ptr.array)); \ +} while(0) + +#define FILL_COMMON_FIELDS(ptr, event, data) \ +do { \ + FILL_FIELD(ptr, common_type, event, data); \ + FILL_FIELD(ptr, common_flags, event, data); \ + FILL_FIELD(ptr, common_preempt_count, event, data); \ + FILL_FIELD(ptr, common_pid, event, data); \ + FILL_FIELD(ptr, common_tgid, event, data); \ +} while (0) + struct trace_wakeup_event { u32 size; @@ -671,22 +695,32 @@ struct trace_wakeup_event { }; static void -process_sched_wakeup_event(struct trace_wakeup_event *wakeup_event, struct event *event, +process_sched_wakeup_event(struct raw_event_sample *raw, struct event *event, int cpu __used, u64 timestamp __used, struct thread *thread __used) { struct task_desc *waker, *wakee; + struct trace_wakeup_event wakeup_event; + + FILL_COMMON_FIELDS(wakeup_event, event, raw->data); + + FILL_ARRAY(wakeup_event, comm, event, raw->data); + FILL_FIELD(wakeup_event, pid, event, raw->data); + FILL_FIELD(wakeup_event, prio, event, raw->data); + FILL_FIELD(wakeup_event, success, event, raw->data); + FILL_FIELD(wakeup_event, cpu, event, raw->data); + if (verbose) { printf("sched_wakeup event %p\n", event); printf(" ... pid %d woke up %s/%d\n", - wakeup_event->common_pid, - wakeup_event->comm, - wakeup_event->pid); + wakeup_event.common_pid, + wakeup_event.comm, + wakeup_event.pid); } - waker = register_pid(wakeup_event->common_pid, "<unknown>"); - wakee = register_pid(wakeup_event->pid, wakeup_event->comm); + waker = register_pid(wakeup_event.common_pid, "<unknown>"); + wakee = register_pid(wakeup_event.pid, wakeup_event.comm); add_sched_event_wakeup(waker, timestamp, wakee); } @@ -714,13 +748,24 @@ struct trace_switch_event { unsigned long cpu_last_switched[MAX_CPUS]; static void -process_sched_switch_event(struct trace_switch_event *switch_event, struct event *event, +process_sched_switch_event(struct raw_event_sample *raw, struct event *event, int cpu __used, u64 timestamp __used, struct thread *thread __used) { + struct trace_switch_event switch_event; struct task_desc *prev, *next; u64 timestamp0; s64 delta; + FILL_COMMON_FIELDS(switch_event, event, raw->data); + + FILL_ARRAY(switch_event, prev_comm, event, raw->data); + FILL_FIELD(switch_event, prev_pid, event, raw->data); + FILL_FIELD(switch_event, prev_prio, event, raw->data); + FILL_FIELD(switch_event, prev_state, event, raw->data); + FILL_ARRAY(switch_event, next_comm, event, raw->data); + FILL_FIELD(switch_event, next_pid, event, raw->data); + FILL_FIELD(switch_event, next_prio, event, raw->data); + if (verbose) printf("sched_switch event %p\n", event); @@ -738,18 +783,18 @@ process_sched_switch_event(struct trace_switch_event *switch_event, struct event if (verbose) { printf(" ... switch from %s/%d to %s/%d [ran %Ld nsecs]\n", - switch_event->prev_comm, switch_event->prev_pid, - switch_event->next_comm, switch_event->next_pid, + switch_event.prev_comm, switch_event.prev_pid, + switch_event.next_comm, switch_event.next_pid, delta); } - prev = register_pid(switch_event->prev_pid, switch_event->prev_comm); - next = register_pid(switch_event->next_pid, switch_event->next_comm); + prev = register_pid(switch_event.prev_pid, switch_event.prev_comm); + next = register_pid(switch_event.next_pid, switch_event.next_comm); cpu_last_switched[cpu] = timestamp; add_sched_event_run(prev, timestamp, delta); - add_sched_event_sleep(prev, timestamp, switch_event->prev_state); + add_sched_event_sleep(prev, timestamp, switch_event.prev_state); } struct trace_fork_event { @@ -768,16 +813,25 @@ struct trace_fork_event { }; static void -process_sched_fork_event(struct trace_fork_event *fork_event, struct event *event, +process_sched_fork_event(struct raw_event_sample *raw, struct event *event, int cpu __used, u64 timestamp __used, struct thread *thread __used) { + struct trace_fork_event fork_event; + + FILL_COMMON_FIELDS(fork_event, event, raw->data); + + FILL_ARRAY(fork_event, parent_comm, event, raw->data); + FILL_FIELD(fork_event, parent_pid, event, raw->data); + FILL_ARRAY(fork_event, child_comm, event, raw->data); + FILL_FIELD(fork_event, child_pid, event, raw->data); + if (verbose) { printf("sched_fork event %p\n", event); - printf("... parent: %s/%d\n", fork_event->parent_comm, fork_event->parent_pid); - printf("... child: %s/%d\n", fork_event->child_comm, fork_event->child_pid); + printf("... parent: %s/%d\n", fork_event.parent_comm, fork_event.parent_pid); + printf("... child: %s/%d\n", fork_event.child_comm, fork_event.child_pid); } - register_pid(fork_event->parent_pid, fork_event->parent_comm); - register_pid(fork_event->child_pid, fork_event->child_comm); + register_pid(fork_event.parent_pid, fork_event.parent_comm); + register_pid(fork_event.child_pid, fork_event.child_comm); } static void process_sched_exit_event(struct event *event, @@ -791,10 +845,7 @@ static void process_raw_event(event_t *raw_event __used, void *more_data, int cpu, u64 timestamp, struct thread *thread) { - struct { - u32 size; - char data[0]; - } *raw = more_data; + struct raw_event_sample *raw = more_data; struct event *event; int type; @@ -802,13 +853,13 @@ process_raw_event(event_t *raw_event __used, void *more_data, event = trace_find_event(type); if (!strcmp(event->name, "sched_switch")) - process_sched_switch_event(more_data, event, cpu, timestamp, thread); + process_sched_switch_event(raw, event, cpu, timestamp, thread); if (!strcmp(event->name, "sched_wakeup")) - process_sched_wakeup_event(more_data, event, cpu, timestamp, thread); + process_sched_wakeup_event(raw, event, cpu, timestamp, thread); if (!strcmp(event->name, "sched_wakeup_new")) - process_sched_wakeup_event(more_data, event, cpu, timestamp, thread); + process_sched_wakeup_event(raw, event, cpu, timestamp, thread); if (!strcmp(event->name, "sched_process_fork")) - process_sched_fork_event(more_data, event, cpu, timestamp, thread); + process_sched_fork_event(raw, event, cpu, timestamp, thread); if (!strcmp(event->name, "sched_process_exit")) process_sched_exit_event(event, cpu, timestamp, thread); } diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index 16cf2d51c4e..64d6e302751 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -1776,6 +1776,29 @@ static unsigned long long read_size(void *ptr, int size) } } +unsigned long long +raw_field_value(struct event *event, const char *name, void *data) +{ + struct format_field *field; + + field = find_any_field(event, name); + if (!field) + return 0ULL; + + return read_size(data + field->offset, field->size); +} + +void *raw_field_ptr(struct event *event, const char *name, void *data) +{ + struct format_field *field; + + field = find_any_field(event, name); + if (!field) + return NULL; + + return data + field->offset; +} + static int get_common_info(const char *type, int *offset, int *size) { struct event *event; diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index bc81612fd24..d35ebf1e29f 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -236,6 +236,9 @@ extern int header_page_data_size; int parse_header_page(char *buf, unsigned long size); int trace_parse_common_type(void *data); struct event *trace_find_event(int id); +unsigned long long +raw_field_value(struct event *event, const char *name, void *data); +void *raw_field_ptr(struct event *event, const char *name, void *data); void read_tracing_data(struct perf_counter_attr *pattrs, int nb_counters); |