static int sched_wakeup_handler(struct trace_seq *s,
struct tep_record *record,
struct event_format *event, void *context)
{
struct format_field *field;
unsigned long long val;
if (tep_get_field_val(s, event, "pid", record, &val, 1))
return trace_seq_putc(s, '!');
field = tep_find_any_field(event, "comm");
if (field) {
write_and_save_comm(field, record, s, val);
trace_seq_putc(s, ':');
}
trace_seq_printf(s, "%lld", val);
if (tep_get_field_val(s, event, "prio", record, &val, 0) == 0)
trace_seq_printf(s, " [%lld]", val);
if (tep_get_field_val(s, event, "success", record, &val, 1) == 0)
trace_seq_printf(s, " success=%lld", val);
if (tep_get_field_val(s, event, "target_cpu", record, &val, 0) == 0)
trace_seq_printf(s, " CPU:%03llu", val);
return 0;
}
static int sched_switch_handler(struct trace_seq *s,
struct tep_record *record,
struct event_format *event, void *context)
{
struct format_field *field;
unsigned long long val;
if (tep_get_field_val(s, event, "prev_pid", record, &val, 1))
return trace_seq_putc(s, '!');
field = tep_find_any_field(event, "prev_comm");
if (field) {
write_and_save_comm(field, record, s, val);
trace_seq_putc(s, ':');
}
trace_seq_printf(s, "%lld ", val);
if (tep_get_field_val(s, event, "prev_prio", record, &val, 0) == 0)
trace_seq_printf(s, "[%d] ", (int) val);
if (tep_get_field_val(s, event, "prev_state", record, &val, 0) == 0)
write_state(s, val);
trace_seq_puts(s, " ==> ");
if (tep_get_field_val(s, event, "next_pid", record, &val, 1))
return trace_seq_putc(s, '!');
field = tep_find_any_field(event, "next_comm");
if (field) {
write_and_save_comm(field, record, s, val);
trace_seq_putc(s, ':');
}
trace_seq_printf(s, "%lld", val);
if (tep_get_field_val(s, event, "next_prio", record, &val, 0) == 0)
trace_seq_printf(s, " [%d]", (int) val);
return 0;
}
unsigned long long
raw_field_value(struct event_format *event, const char *name, void *data)
{
struct format_field *field;
unsigned long long val;
field = tep_find_any_field(event, name);
if (!field)
return 0ULL;
tep_read_number_field(field, data, &val);
return val;
}
static int
trace_stack_handler(struct trace_seq *s, struct tep_record *record,
struct tep_event *event, void *context)
{
struct tracecmd_ftrace *finfo = context;
struct tep_format_field *field;
unsigned long long addr;
const char *func;
void *data = record->data;
field = tep_find_any_field(event, "caller");
if (!field) {
trace_seq_printf(s, "<CANT FIND FIELD %s>", "caller");
return 0;
}
trace_seq_puts(s, "<stack trace>\n");
long_size_check(finfo);
for (data += field->offset; data < record->data + record->size;
data += finfo->long_size) {
addr = tep_read_number(event->tep, data, finfo->long_size);
if ((finfo->long_size == 8 && addr == (unsigned long long)-1) ||
((int)addr == -1))
break;
func = tep_find_function(event->tep, addr);
if (func)
trace_seq_printf(s, "=> %s (%llx)\n", func, addr);
else
trace_seq_printf(s, "=> %llx\n", addr);
}
return 0;
}
