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- # Util.py - Python extension for perf trace, 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.
- import errno, os
- 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 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,
- 'armeb' : audit.MACH_ARMEB,
- '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,
- }
- 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
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