| # Util.py - Python extension for perf script, miscellaneous utility code | |
| # | |
| # 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 __future__ import print_function | |
| import errno, os | |
| FUTEX_WAIT = 0 | |
| FUTEX_WAKE = 1 | |
| FUTEX_PRIVATE_FLAG = 128 | |
| FUTEX_CLOCK_REALTIME = 256 | |
| FUTEX_CMD_MASK = ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME) | |
| NSECS_PER_SEC = 1000000000 | |
| def avg(total, n): | |
| return total / n | |
| def nsecs(secs, nsecs): | |
| return secs * NSECS_PER_SEC + nsecs | |
| def nsecs_secs(nsecs): | |
| return nsecs / NSECS_PER_SEC | |
| def nsecs_nsecs(nsecs): | |
| return nsecs % NSECS_PER_SEC | |
| def nsecs_str(nsecs): | |
| str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)), | |
| return str | |
| def add_stats(dict, key, value): | |
| if key not in dict: | |
| dict[key] = (value, value, value, 1) | |
| else: | |
| min, max, avg, count = dict[key] | |
| if value < min: | |
| min = value | |
| if value > max: | |
| max = value | |
| avg = (avg + value) / 2 | |
| dict[key] = (min, max, avg, count + 1) | |
| def clear_term(): | |
| print("\x1b[H\x1b[2J") | |
| audit_package_warned = False | |
| try: | |
| import audit | |
| machine_to_id = { | |
| 'x86_64': audit.MACH_86_64, | |
| 'aarch64': audit.MACH_AARCH64, | |
| 'alpha' : audit.MACH_ALPHA, | |
| 'ia64' : audit.MACH_IA64, | |
| 'ppc' : audit.MACH_PPC, | |
| 'ppc64' : audit.MACH_PPC64, | |
| 'ppc64le' : audit.MACH_PPC64LE, | |
| 's390' : audit.MACH_S390, | |
| 's390x' : audit.MACH_S390X, | |
| 'i386' : audit.MACH_X86, | |
| 'i586' : audit.MACH_X86, | |
| 'i686' : audit.MACH_X86, | |
| } | |
| try: | |
| machine_to_id['armeb'] = audit.MACH_ARMEB | |
| except: | |
| pass | |
| machine_id = machine_to_id[os.uname()[4]] | |
| except: | |
| if not audit_package_warned: | |
| audit_package_warned = True | |
| print("Install the python-audit package to get syscall names.\n" | |
| "For example:\n # apt-get install python3-audit (Ubuntu)" | |
| "\n # yum install python3-audit (Fedora)" | |
| "\n etc.\n") | |
| def syscall_name(id): | |
| try: | |
| return audit.audit_syscall_to_name(id, machine_id) | |
| except: | |
| return str(id) | |
| def strerror(nr): | |
| try: | |
| return errno.errorcode[abs(nr)] | |
| except: | |
| return "Unknown %d errno" % nr |