# Util.py - Python extension for perf trace, miscellaneous utility code # # Copyright (C) 2010 by Tom Zanussi # # This software may be distributed under the terms of the GNU General # Public License ("GPL") version 2 as published by the Free Software # Foundation. 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 not dict.has_key(key): 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, 'alpha' : audit.MACH_ALPHA, 'ia64' : audit.MACH_IA64, 'ppc' : audit.MACH_PPC, 'ppc64' : audit.MACH_PPC64, '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 audit-libs-python package to get syscall names" 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