| # Core.py - Python extension for perf script, core functions |
| # |
| # Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com> |
| # |
| # This software may be distributed under the terms of the GNU General |
| # Public License ("GPL") version 2 as published by the Free Software |
| # Foundation. |
| |
| from collections import defaultdict |
| |
| def autodict(): |
| return defaultdict(autodict) |
| |
| flag_fields = autodict() |
| symbolic_fields = autodict() |
| |
| def define_flag_field(event_name, field_name, delim): |
| flag_fields[event_name][field_name]['delim'] = delim |
| |
| def define_flag_value(event_name, field_name, value, field_str): |
| flag_fields[event_name][field_name]['values'][value] = field_str |
| |
| def define_symbolic_field(event_name, field_name): |
| # nothing to do, really |
| pass |
| |
| def define_symbolic_value(event_name, field_name, value, field_str): |
| symbolic_fields[event_name][field_name]['values'][value] = field_str |
| |
| def flag_str(event_name, field_name, value): |
| string = "" |
| |
| if flag_fields[event_name][field_name]: |
| print_delim = 0 |
| keys = flag_fields[event_name][field_name]['values'].keys() |
| keys.sort() |
| for idx in keys: |
| if not value and not idx: |
| string += flag_fields[event_name][field_name]['values'][idx] |
| break |
| if idx and (value & idx) == idx: |
| if print_delim and flag_fields[event_name][field_name]['delim']: |
| string += " " + flag_fields[event_name][field_name]['delim'] + " " |
| string += flag_fields[event_name][field_name]['values'][idx] |
| print_delim = 1 |
| value &= ~idx |
| |
| return string |
| |
| def symbol_str(event_name, field_name, value): |
| string = "" |
| |
| if symbolic_fields[event_name][field_name]: |
| keys = symbolic_fields[event_name][field_name]['values'].keys() |
| keys.sort() |
| for idx in keys: |
| if not value and not idx: |
| string = symbolic_fields[event_name][field_name]['values'][idx] |
| break |
| if (value == idx): |
| string = symbolic_fields[event_name][field_name]['values'][idx] |
| break |
| |
| return string |
| |
| trace_flags = { 0x00: "NONE", \ |
| 0x01: "IRQS_OFF", \ |
| 0x02: "IRQS_NOSUPPORT", \ |
| 0x04: "NEED_RESCHED", \ |
| 0x08: "HARDIRQ", \ |
| 0x10: "SOFTIRQ" } |
| |
| def trace_flag_str(value): |
| string = "" |
| print_delim = 0 |
| |
| keys = trace_flags.keys() |
| |
| for idx in keys: |
| if not value and not idx: |
| string += "NONE" |
| break |
| |
| if idx and (value & idx) == idx: |
| if print_delim: |
| string += " | "; |
| string += trace_flags[idx] |
| print_delim = 1 |
| value &= ~idx |
| |
| return string |
| |
| |
| def taskState(state): |
| states = { |
| 0 : "R", |
| 1 : "S", |
| 2 : "D", |
| 64: "DEAD" |
| } |
| |
| if state not in states: |
| return "Unknown" |
| |
| return states[state] |
| |
| |
| class EventHeaders: |
| def __init__(self, common_cpu, common_secs, common_nsecs, |
| common_pid, common_comm): |
| self.cpu = common_cpu |
| self.secs = common_secs |
| self.nsecs = common_nsecs |
| self.pid = common_pid |
| self.comm = common_comm |
| |
| def ts(self): |
| return (self.secs * (10 ** 9)) + self.nsecs |
| |
| def ts_format(self): |
| return "%d.%d" % (self.secs, int(self.nsecs / 1000)) |
