def define_base_types(self):
self.char8_type = CTFWriter.IntegerFieldDeclaration(8)
self.char8_type.signed = True
self.char8_type.encoding = CTFStringEncoding.UTF8
self.char8_type.alignment = 8
self.int16_type = CTFWriter.IntegerFieldDeclaration(16)
self.int16_type.signed = True
self.int16_type.alignment = 8
self.uint16_type = CTFWriter.IntegerFieldDeclaration(16)
self.uint16_type.signed = False
self.uint16_type.alignment = 8
self.int32_type = CTFWriter.IntegerFieldDeclaration(32)
self.int32_type.signed = True
self.int32_type.alignment = 8
self.uint32_type = CTFWriter.IntegerFieldDeclaration(32)
self.uint32_type.signed = False
self.uint32_type.alignment = 8
self.int64_type = CTFWriter.IntegerFieldDeclaration(64)
self.int64_type.signed = True
self.int64_type.alignment = 8
self.uint64_type = CTFWriter.IntegerFieldDeclaration(64)
self.uint64_type.signed = False
self.uint64_type.alignment = 8
self.array16_type = CTFWriter.ArrayFieldDeclaration(
self.char8_type, 16)
self.string_type = CTFWriter.StringFieldDeclaration()
def add_array_field(self, event_class, field):
array_type = CTFWriter.ArrayFieldDeclaration(char8_type, field.length)
event_class.add_field(array_type, '_' + field.name)
char8_type.encoding = CTFStringEncoding.UTF8
char8_type.alignment = 8
int32_type = CTFWriter.IntegerFieldDeclaration(32)
int32_type.signed = True
int32_type.alignment = 8
uint32_type = CTFWriter.IntegerFieldDeclaration(32)
uint32_type.signed = False
uint32_type.alignment = 8
int64_type = CTFWriter.IntegerFieldDeclaration(64)
int64_type.signed = True
int64_type.alignment = 8
array_type = CTFWriter.ArrayFieldDeclaration(char8_type, 16)
sched_switch = CTFWriter.EventClass("sched_switch")
sched_switch.add_field(array_type, "_prev_comm")
sched_switch.add_field(int32_type, "_prev_tid")
sched_switch.add_field(int32_type, "_prev_prio")
sched_switch.add_field(int64_type, "_prev_state")
sched_switch.add_field(array_type, "_next_comm")
sched_switch.add_field(int32_type, "_next_tid")
sched_switch.add_field(int32_type, "_next_prio")
sched_switch.add_field(uint32_type, "_cpu_id")
stream_class.add_event_class(sched_switch)
stream = writer.create_stream(stream_class)
def add_string_field(self, event_class, field):
string_type = CTFWriter.ArrayFieldDeclaration(char8_type, 16)
event_class.add_field(string_type, '_' + field.name)