1# Util.py - Python extension for perf script, miscellaneous utility code
 2#
 3# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com>
 4#
 5# This software may be distributed under the terms of the GNU General
 6# Public License ("GPL") version 2 as published by the Free Software
 7# Foundation.
 8from __future__ import print_function
 9
10import errno, os
11
12FUTEX_WAIT = 0
13FUTEX_WAKE = 1
14FUTEX_PRIVATE_FLAG = 128
15FUTEX_CLOCK_REALTIME = 256
16FUTEX_CMD_MASK = ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
17
18NSECS_PER_SEC    = 1000000000
19
20def avg(total, n):
21    return total / n
22
23def nsecs(secs, nsecs):
24    return secs * NSECS_PER_SEC + nsecs
25
26def nsecs_secs(nsecs):
27    return nsecs / NSECS_PER_SEC
28
29def nsecs_nsecs(nsecs):
30    return nsecs % NSECS_PER_SEC
31
32def nsecs_str(nsecs):
33    str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)),
34    return str
35
36def add_stats(dict, key, value):
37	if key not in dict:
38		dict[key] = (value, value, value, 1)
39	else:
40		min, max, avg, count = dict[key]
41		if value < min:
42			min = value
43		if value > max:
44			max = value
45		avg = (avg + value) / 2
46		dict[key] = (min, max, avg, count + 1)
47
48def clear_term():
49    print("\x1b[H\x1b[2J")
50
51audit_package_warned = False
52
53try:
54	import audit
55	machine_to_id = {
56		'x86_64': audit.MACH_86_64,
57		'aarch64': audit.MACH_AARCH64,
58		'alpha'	: audit.MACH_ALPHA,
59		'ia64'	: audit.MACH_IA64,
60		'ppc'	: audit.MACH_PPC,
61		'ppc64'	: audit.MACH_PPC64,
62		'ppc64le' : audit.MACH_PPC64LE,
63		's390'	: audit.MACH_S390,
64		's390x'	: audit.MACH_S390X,
65		'i386'	: audit.MACH_X86,
66		'i586'	: audit.MACH_X86,
67		'i686'	: audit.MACH_X86,
68	}
69	try:
70		machine_to_id['armeb'] = audit.MACH_ARMEB
71	except:
72		pass
73	machine_id = machine_to_id[os.uname()[4]]
74except:
75	if not audit_package_warned:
76		audit_package_warned = True
77		print("Install the python-audit package to get syscall names.\n"
78                    "For example:\n  # apt-get install python3-audit (Ubuntu)"
79                    "\n  # yum install python3-audit (Fedora)"
80                    "\n  etc.\n")
81
82def syscall_name(id):
83	try:
84		return audit.audit_syscall_to_name(id, machine_id)
85	except:
86		return str(id)
87
88def strerror(nr):
89	try:
90		return errno.errorcode[abs(nr)]
91	except:
92		return "Unknown %d errno" % nr

 1# Util.py - Python extension for perf script, miscellaneous utility code
 2#
 3# Copyright (C) 2010 by Tom Zanussi <tzanussi@gmail.com>
 4#
 5# This software may be distributed under the terms of the GNU General
 6# Public License ("GPL") version 2 as published by the Free Software
 7# Foundation.
 
 8
 9import errno, os
10
11FUTEX_WAIT = 0
12FUTEX_WAKE = 1
13FUTEX_PRIVATE_FLAG = 128
14FUTEX_CLOCK_REALTIME = 256
15FUTEX_CMD_MASK = ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)
16
17NSECS_PER_SEC    = 1000000000
18
19def avg(total, n):
20    return total / n
21
22def nsecs(secs, nsecs):
23    return secs * NSECS_PER_SEC + nsecs
24
25def nsecs_secs(nsecs):
26    return nsecs / NSECS_PER_SEC
27
28def nsecs_nsecs(nsecs):
29    return nsecs % NSECS_PER_SEC
30
31def nsecs_str(nsecs):
32    str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)),
33    return str
34
35def add_stats(dict, key, value):
36	if not dict.has_key(key):
37		dict[key] = (value, value, value, 1)
38	else:
39		min, max, avg, count = dict[key]
40		if value < min:
41			min = value
42		if value > max:
43			max = value
44		avg = (avg + value) / 2
45		dict[key] = (min, max, avg, count + 1)
46
47def clear_term():
48    print("\x1b[H\x1b[2J")
49
50audit_package_warned = False
51
52try:
53	import audit
54	machine_to_id = {
55		'x86_64': audit.MACH_86_64,
 
56		'alpha'	: audit.MACH_ALPHA,
57		'ia64'	: audit.MACH_IA64,
58		'ppc'	: audit.MACH_PPC,
59		'ppc64'	: audit.MACH_PPC64,
 
60		's390'	: audit.MACH_S390,
61		's390x'	: audit.MACH_S390X,
62		'i386'	: audit.MACH_X86,
63		'i586'	: audit.MACH_X86,
64		'i686'	: audit.MACH_X86,
65	}
66	try:
67		machine_to_id['armeb'] = audit.MACH_ARMEB
68	except:
69		pass
70	machine_id = machine_to_id[os.uname()[4]]
71except:
72	if not audit_package_warned:
73		audit_package_warned = True
74		print "Install the audit-libs-python package to get syscall names"
 
 
 
75
76def syscall_name(id):
77	try:
78		return audit.audit_syscall_to_name(id, machine_id)
79	except:
80		return str(id)
81
82def strerror(nr):
83	try:
84		return errno.errorcode[abs(nr)]
85	except:
86		return "Unknown %d errno" % nr