+# The MIT License (MIT)
+#
+# Copyright (C) 2016 - Julien Desfossez <jdesfossez@efficios.com>
+# Antoine Busque <abusque@efficios.com>
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+import sys
+import os
+import shutil
+import tempfile
+from babeltrace import CTFWriter, CTFStringEncoding
+
+
+class TraceWriter():
+ def __init__(self):
+ self._trace_root = tempfile.mkdtemp()
+ self.trace_path = os.path.join(self.trace_root, "kernel")
+ self.create_writer()
+ self.create_stream_class()
+ self.define_base_types()
+ self.define_events()
+ self.create_stream()
+
+ @property
+ def trace_root(self):
+ return self._trace_root
+
+ def rm_trace(self):
+ shutil.rmtree(self.trace_root)
+
+ def flush(self):
+ self.writer.flush_metadata()
+ self.stream.flush()
+
+ def create_writer(self):
+ self.clock = CTFWriter.Clock("A_clock")
+ self.clock.description = "Simple clock"
+ self.writer = CTFWriter.Writer(self.trace_path)
+ self.writer.add_clock(self.clock)
+ self.writer.add_environment_field("Python_version",
+ str(sys.version_info))
+ self.writer.add_environment_field("tracer_major", 2)
+ self.writer.add_environment_field("tracer_minor", 8)
+ self.writer.add_environment_field("tracer_patchlevel", 0)
+
+ def create_stream_class(self):
+ self.stream_class = CTFWriter.StreamClass("test_stream")
+ self.stream_class.clock = self.clock
+
+ 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_event(self, event):
+ event.add_field(self.uint32_type, "_cpu_id")
+ self.stream_class.add_event_class(event)
+
+ def define_sched_switch(self):
+ self.sched_switch = CTFWriter.EventClass("sched_switch")
+ self.sched_switch.add_field(self.array16_type, "_prev_comm")
+ self.sched_switch.add_field(self.int32_type, "_prev_tid")
+ self.sched_switch.add_field(self.int32_type, "_prev_prio")
+ self.sched_switch.add_field(self.int64_type, "_prev_state")
+ self.sched_switch.add_field(self.array16_type, "_next_comm")
+ self.sched_switch.add_field(self.int32_type, "_next_tid")
+ self.sched_switch.add_field(self.int32_type, "_next_prio")
+ self.add_event(self.sched_switch)
+
+ def define_softirq_raise(self):
+ self.softirq_raise = CTFWriter.EventClass("softirq_raise")
+ self.softirq_raise.add_field(self.uint32_type, "_vec")
+ self.add_event(self.softirq_raise)
+
+ def define_softirq_entry(self):
+ self.softirq_entry = CTFWriter.EventClass("softirq_entry")
+ self.softirq_entry.add_field(self.uint32_type, "_vec")
+ self.add_event(self.softirq_entry)
+
+ def define_softirq_exit(self):
+ self.softirq_exit = CTFWriter.EventClass("softirq_exit")
+ self.softirq_exit.add_field(self.uint32_type, "_vec")
+ self.add_event(self.softirq_exit)
+
+ def define_irq_handler_entry(self):
+ self.irq_handler_entry = CTFWriter.EventClass("irq_handler_entry")
+ self.irq_handler_entry.add_field(self.int32_type, "_irq")
+ self.irq_handler_entry.add_field(self.string_type, "_name")
+ self.add_event(self.irq_handler_entry)
+
+ def define_irq_handler_exit(self):
+ self.irq_handler_exit = CTFWriter.EventClass("irq_handler_exit")
+ self.irq_handler_exit.add_field(self.int32_type, "_irq")
+ self.irq_handler_exit.add_field(self.int32_type, "_ret")
+ self.add_event(self.irq_handler_exit)
+
+ def define_syscall_entry_write(self):
+ self.syscall_entry_write = CTFWriter.EventClass("syscall_entry_write")
+ self.syscall_entry_write.add_field(self.uint32_type, "_fd")
+ self.syscall_entry_write.add_field(self.uint64_type, "_buf")
+ self.syscall_entry_write.add_field(self.uint64_type, "_count")
+ self.add_event(self.syscall_entry_write)
+
+ def define_syscall_exit_write(self):
+ self.syscall_exit_write = CTFWriter.EventClass("syscall_exit_write")
+ self.syscall_exit_write.add_field(self.int64_type, "_ret")
+ self.add_event(self.syscall_exit_write)
+
+ def define_syscall_entry_read(self):
+ self.syscall_entry_read = CTFWriter.EventClass("syscall_entry_read")
+ self.syscall_entry_read.add_field(self.uint32_type, "_fd")
+ self.syscall_entry_read.add_field(self.uint64_type, "_count")
+ self.add_event(self.syscall_entry_read)
+
+ def define_syscall_exit_read(self):
+ self.syscall_exit_read = CTFWriter.EventClass("syscall_exit_read")
+ self.syscall_exit_read.add_field(self.uint64_type, "_buf")
+ self.syscall_exit_read.add_field(self.int64_type, "_ret")
+ self.add_event(self.syscall_exit_read)
+
+ def define_syscall_entry_open(self):
+ self.syscall_entry_open = CTFWriter.EventClass("syscall_entry_open")
+ self.syscall_entry_open.add_field(self.string_type, "_filename")
+ self.syscall_entry_open.add_field(self.int32_type, "_flags")
+ self.syscall_entry_open.add_field(self.uint16_type, "_mode")
+ self.add_event(self.syscall_entry_open)
+
+ def define_syscall_exit_open(self):
+ self.syscall_exit_open = CTFWriter.EventClass("syscall_exit_open")
+ self.syscall_exit_open.add_field(self.int64_type, "_ret")
+ self.add_event(self.syscall_exit_open)
+
+ def define_lttng_statedump_process_state(self):
+ self.lttng_statedump_process_state = CTFWriter.EventClass(
+ "lttng_statedump_process_state")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_tid")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_vtid")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_pid")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_vpid")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_ppid")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_vppid")
+ self.lttng_statedump_process_state.add_field(self.array16_type,
+ "_name")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_type")
+ self.lttng_statedump_process_state.add_field(self.int32_type, "_mode")
+ self.lttng_statedump_process_state.add_field(self.int32_type,
+ "_submode")
+ self.lttng_statedump_process_state.add_field(self.int32_type,
+ "_status")
+ self.lttng_statedump_process_state.add_field(self.int32_type,
+ "_ns_level")
+ self.add_event(self.lttng_statedump_process_state)
+
+ def define_lttng_statedump_file_descriptor(self):
+ self.lttng_statedump_file_descriptor = CTFWriter.EventClass(
+ "lttng_statedump_file_descriptor")
+ self.lttng_statedump_file_descriptor.add_field(self.int32_type, "_pid")
+ self.lttng_statedump_file_descriptor.add_field(self.int32_type, "_fd")
+ self.lttng_statedump_file_descriptor.add_field(self.uint32_type,
+ "_flags")
+ self.lttng_statedump_file_descriptor.add_field(self.uint32_type,
+ "_fmode")
+ self.lttng_statedump_file_descriptor.add_field(self.string_type,
+ "_filename")
+ self.add_event(self.lttng_statedump_file_descriptor)
+
+ def define_sched_wakeup(self):
+ self.sched_wakeup = CTFWriter.EventClass("sched_wakeup")
+ self.sched_wakeup.add_field(self.array16_type, "_comm")
+ self.sched_wakeup.add_field(self.int32_type, "_tid")
+ self.sched_wakeup.add_field(self.int32_type, "_prio")
+ self.sched_wakeup.add_field(self.int32_type, "_success")
+ self.sched_wakeup.add_field(self.int32_type, "_target_cpu")
+ self.add_event(self.sched_wakeup)
+
+ def define_sched_waking(self):
+ self.sched_waking = CTFWriter.EventClass("sched_waking")
+ self.sched_waking.add_field(self.array16_type, "_comm")
+ self.sched_waking.add_field(self.int32_type, "_tid")
+ self.sched_waking.add_field(self.int32_type, "_prio")
+ self.sched_waking.add_field(self.int32_type, "_target_cpu")
+ self.add_event(self.sched_waking)
+
+ def define_block_rq_complete(self):
+ self.block_rq_complete = CTFWriter.EventClass("block_rq_complete")
+ self.block_rq_complete.add_field(self.uint32_type, "_dev")
+ self.block_rq_complete.add_field(self.uint64_type, "_sector")
+ self.block_rq_complete.add_field(self.uint32_type, "_nr_sector")
+ self.block_rq_complete.add_field(self.int32_type, "_errors")
+ self.block_rq_complete.add_field(self.uint32_type, "_rwbs")
+ self.block_rq_complete.add_field(self.uint64_type, "__cmd_length")
+ self.block_rq_complete.add_field(self.array16_type, "_cmd")
+ self.add_event(self.block_rq_complete)
+
+ def define_block_rq_issue(self):
+ self.block_rq_issue = CTFWriter.EventClass("block_rq_issue")
+ self.block_rq_issue.add_field(self.uint32_type, "_dev")
+ self.block_rq_issue.add_field(self.uint64_type, "_sector")
+ self.block_rq_issue.add_field(self.uint32_type, "_nr_sector")
+ self.block_rq_issue.add_field(self.uint32_type, "_bytes")
+ self.block_rq_issue.add_field(self.int32_type, "_tid")
+ self.block_rq_issue.add_field(self.uint32_type, "_rwbs")
+ self.block_rq_issue.add_field(self.uint64_type, "__cmd_length")
+ self.block_rq_issue.add_field(self.array16_type, "_cmd")
+ self.block_rq_issue.add_field(self.array16_type, "_comm")
+ self.add_event(self.block_rq_issue)
+
+ def define_net_dev_xmit(self):
+ self.net_dev_xmit = CTFWriter.EventClass("net_dev_xmit")
+ self.net_dev_xmit.add_field(self.uint64_type, "_skbaddr")
+ self.net_dev_xmit.add_field(self.int32_type, "_rc")
+ self.net_dev_xmit.add_field(self.uint32_type, "_len")
+ self.net_dev_xmit.add_field(self.string_type, "_name")
+ self.add_event(self.net_dev_xmit)
+
+ def define_netif_receive_skb(self):
+ self.netif_receive_skb = CTFWriter.EventClass("netif_receive_skb")
+ self.netif_receive_skb.add_field(self.uint64_type, "_skbaddr")
+ self.netif_receive_skb.add_field(self.uint32_type, "_len")
+ self.netif_receive_skb.add_field(self.string_type, "_name")
+ self.add_event(self.netif_receive_skb)
+
+ def define_events(self):
+ self.define_sched_switch()
+ self.define_softirq_raise()
+ self.define_softirq_entry()
+ self.define_softirq_exit()
+ self.define_irq_handler_entry()
+ self.define_irq_handler_exit()
+ self.define_syscall_entry_write()
+ self.define_syscall_exit_write()
+ self.define_syscall_entry_read()
+ self.define_syscall_exit_read()
+ self.define_syscall_entry_open()
+ self.define_syscall_exit_open()
+ self.define_lttng_statedump_process_state()
+ self.define_lttng_statedump_file_descriptor()
+ self.define_sched_wakeup()
+ self.define_sched_waking()
+ self.define_block_rq_complete()
+ self.define_block_rq_issue()
+ self.define_net_dev_xmit()
+ self.define_netif_receive_skb()
+
+ def create_stream(self):
+ self.stream = self.writer.create_stream(self.stream_class)
+
+ def set_char_array(self, event, string):
+ if len(string) > 16:
+ string = string[0:16]
+ else:
+ string = "%s" % (string + "\0" * (16 - len(string)))
+
+ for i, char in enumerate(string):
+ event.field(i).value = ord(char)
+
+ def set_int(self, event, value):
+ event.value = value
+
+ def set_string(self, event, value):
+ event.value = value
+
+ def write_softirq_raise(self, time_ms, cpu_id, vec):
+ event = CTFWriter.Event(self.softirq_raise)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_vec"), vec)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_softirq_entry(self, time_ms, cpu_id, vec):
+ event = CTFWriter.Event(self.softirq_entry)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_vec"), vec)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_softirq_exit(self, time_ms, cpu_id, vec):
+ event = CTFWriter.Event(self.softirq_exit)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_vec"), vec)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_irq_handler_entry(self, time_ms, cpu_id, irq, name):
+ event = CTFWriter.Event(self.irq_handler_entry)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_irq"), irq)
+ self.set_string(event.payload("_name"), name)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_irq_handler_exit(self, time_ms, cpu_id, irq, ret):
+ event = CTFWriter.Event(self.irq_handler_exit)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_irq"), irq)
+ self.set_int(event.payload("_ret"), ret)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_syscall_write(self, time_ms, cpu_id, delay, fd, buf, count, ret):
+ event_entry = CTFWriter.Event(self.syscall_entry_write)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event_entry.payload("_cpu_id"), cpu_id)
+ self.set_int(event_entry.payload("_fd"), fd)
+ self.set_int(event_entry.payload("_buf"), buf)
+ self.set_int(event_entry.payload("_count"), count)
+ self.stream.append_event(event_entry)
+
+ event_exit = CTFWriter.Event(self.syscall_exit_write)
+ self.clock.time = (time_ms + delay) * 1000000
+ self.set_int(event_exit.payload("_cpu_id"), cpu_id)
+ self.set_int(event_exit.payload("_ret"), ret)
+ self.stream.append_event(event_exit)
+ self.stream.flush()
+
+ def write_syscall_read(self, time_ms, cpu_id, delay, fd, buf, count, ret):
+ event_entry = CTFWriter.Event(self.syscall_entry_read)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event_entry.payload("_cpu_id"), cpu_id)
+ self.set_int(event_entry.payload("_fd"), fd)
+ self.set_int(event_entry.payload("_count"), count)
+ self.stream.append_event(event_entry)
+
+ event_exit = CTFWriter.Event(self.syscall_exit_read)
+ self.clock.time = (time_ms + delay) * 1000000
+ self.set_int(event_exit.payload("_cpu_id"), cpu_id)
+ self.set_int(event_exit.payload("_buf"), buf)
+ self.set_int(event_exit.payload("_ret"), ret)
+ self.stream.append_event(event_exit)
+ self.stream.flush()
+
+ def write_syscall_open(self, time_ms, cpu_id, delay, filename, flags,
+ mode, ret):
+ event = CTFWriter.Event(self.syscall_entry_open)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_string(event.payload("_filename"), filename)
+ self.set_int(event.payload("_flags"), flags)
+ self.set_int(event.payload("_mode"), mode)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ event = CTFWriter.Event(self.syscall_exit_open)
+ self.clock.time = (time_ms + delay) * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_ret"), ret)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_lttng_statedump_file_descriptor(self, time_ms, cpu_id, pid, fd,
+ flags, fmode, filename):
+ event = CTFWriter.Event(self.lttng_statedump_file_descriptor)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_pid"), pid)
+ self.set_int(event.payload("_fd"), fd)
+ self.set_int(event.payload("_flags"), flags)
+ self.set_int(event.payload("_fmode"), fmode)
+ self.set_string(event.payload("_filename"), filename)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_lttng_statedump_process_state(self, time_ms, cpu_id, tid, vtid,
+ pid, vpid, ppid, vppid, name, type,
+ mode, submode, status, ns_level):
+ event = CTFWriter.Event(self.lttng_statedump_process_state)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_tid"), tid)
+ self.set_int(event.payload("_vtid"), vtid)
+ self.set_int(event.payload("_pid"), pid)
+ self.set_int(event.payload("_vpid"), vpid)
+ self.set_int(event.payload("_ppid"), ppid)
+ self.set_int(event.payload("_vppid"), vppid)
+ self.set_char_array(event.payload("_name"), name)
+ self.set_int(event.payload("_type"), type)
+ self.set_int(event.payload("_mode"), mode)
+ self.set_int(event.payload("_submode"), submode)
+ self.set_int(event.payload("_status"), status)
+ self.set_int(event.payload("_ns_level"), ns_level)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_sched_wakeup(self, time_ms, cpu_id, comm, tid, prio, target_cpu):
+ event = CTFWriter.Event(self.sched_wakeup)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_char_array(event.payload("_comm"), comm)
+ self.set_int(event.payload("_tid"), tid)
+ self.set_int(event.payload("_prio"), prio)
+ self.set_int(event.payload("_target_cpu"), target_cpu)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_sched_waking(self, time_ms, cpu_id, comm, tid, prio, target_cpu):
+ event = CTFWriter.Event(self.sched_waking)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_char_array(event.payload("_comm"), comm)
+ self.set_int(event.payload("_tid"), tid)
+ self.set_int(event.payload("_prio"), prio)
+ self.set_int(event.payload("_target_cpu"), target_cpu)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_block_rq_complete(self, time_ms, cpu_id, dev, sector, nr_sector,
+ errors, rwbs, _cmd_length, cmd):
+ event = CTFWriter.Event(self.block_rq_complete)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_dev"), dev)
+ self.set_int(event.payload("_sector"), sector)
+ self.set_int(event.payload("_nr_sector"), nr_sector)
+ self.set_int(event.payload("_errors"), errors)
+ self.set_int(event.payload("_rwbs"), rwbs)
+ self.set_int(event.payload("__cmd_length"), _cmd_length)
+ self.set_char_array(event.payload("_cmd"), cmd)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_block_rq_issue(self, time_ms, cpu_id, dev, sector, nr_sector,
+ bytes, tid, rwbs, _cmd_length, cmd, comm):
+ event = CTFWriter.Event(self.block_rq_issue)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_dev"), dev)
+ self.set_int(event.payload("_sector"), sector)
+ self.set_int(event.payload("_nr_sector"), nr_sector)
+ self.set_int(event.payload("_bytes"), bytes)
+ self.set_int(event.payload("_tid"), tid)
+ self.set_int(event.payload("_rwbs"), rwbs)
+ self.set_int(event.payload("__cmd_length"), _cmd_length)
+ self.set_char_array(event.payload("_cmd"), cmd)
+ self.set_char_array(event.payload("_comm"), comm)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_net_dev_xmit(self, time_ms, cpu_id, skbaddr, rc, len, name):
+ event = CTFWriter.Event(self.net_dev_xmit)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_skbaddr"), skbaddr)
+ self.set_int(event.payload("_rc"), rc)
+ self.set_int(event.payload("_len"), len)
+ self.set_string(event.payload("_name"), name)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_netif_receive_skb(self, time_ms, cpu_id, skbaddr, len, name):
+ event = CTFWriter.Event(self.netif_receive_skb)
+ self.clock.time = time_ms * 1000000
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.set_int(event.payload("_skbaddr"), skbaddr)
+ self.set_int(event.payload("_len"), len)
+ self.set_string(event.payload("_name"), name)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def write_sched_switch(self, time_ms, cpu_id, prev_comm, prev_tid,
+ next_comm, next_tid, prev_prio=20, prev_state=1,
+ next_prio=20):
+ event = CTFWriter.Event(self.sched_switch)
+ self.clock.time = time_ms * 1000000
+ self.set_char_array(event.payload("_prev_comm"), prev_comm)
+ self.set_int(event.payload("_prev_tid"), prev_tid)
+ self.set_int(event.payload("_prev_prio"), prev_prio)
+ self.set_int(event.payload("_prev_state"), prev_state)
+ self.set_char_array(event.payload("_next_comm"), next_comm)
+ self.set_int(event.payload("_next_tid"), next_tid)
+ self.set_int(event.payload("_next_prio"), next_prio)
+ self.set_int(event.payload("_cpu_id"), cpu_id)
+ self.stream.append_event(event)
+ self.stream.flush()
+
+ def sched_switch_50pc(self, start_time_ms, end_time_ms, cpu_id, period,
+ comm1, tid1, comm2, tid2):
+ current = start_time_ms
+ while current < end_time_ms:
+ self.write_sched_switch(current, cpu_id, comm1, tid1, comm2, tid2)
+ current += period
+ self.write_sched_switch(current, cpu_id, comm2, tid2, comm1, tid1)
+ current += period