projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 765532c8 | 1 | # Util.py - Python extension for perf script, miscellaneous utility code |
| 7e4b21b8 TZ |
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 | ||
| 6cc73614 ACM |
9 | import errno, os |
| 10 | ||
| 00204c33 ACM |
11 | FUTEX_WAIT = 0 |
| 12 | FUTEX_WAKE = 1 | |
| 13 | FUTEX_PRIVATE_FLAG = 128 | |
| 14 | FUTEX_CLOCK_REALTIME = 256 | |
| 15 | FUTEX_CMD_MASK = ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME) | |
| 16 | ||
| 7e4b21b8 TZ |
17 | NSECS_PER_SEC = 1000000000 |
| 18 | ||
| 19 | def avg(total, n): | |
| 20 | return total / n | |
| 21 | ||
| 22 | def nsecs(secs, nsecs): | |
| 23 | return secs * NSECS_PER_SEC + nsecs | |
| 24 | ||
| 25 | def nsecs_secs(nsecs): | |
| 26 | return nsecs / NSECS_PER_SEC | |
| 27 | ||
| 28 | def nsecs_nsecs(nsecs): | |
| 29 | return nsecs % NSECS_PER_SEC | |
| 30 | ||
| 31 | def nsecs_str(nsecs): | |
| 32 | str = "%5u.%09u" % (nsecs_secs(nsecs), nsecs_nsecs(nsecs)), | |
| 33 | return str | |
| 47902f36 | 34 | |
| 00204c33 ACM |
35 | def 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 | ||
| 47902f36 TZ |
47 | def clear_term(): |
| 48 | print("\x1b[H\x1b[2J") | |
| 6cc73614 ACM |
49 | |
| 50 | audit_package_warned = False | |
| 51 | ||
| 52 | try: | |
| 53 | import audit | |
| 54 | machine_to_id = { | |
| 55 | 'x86_64': audit.MACH_86_64, | |
| 56 | 'alpha' : audit.MACH_ALPHA, | |
| 6cc73614 ACM |
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 | } | |
| 7f6c1bd5 ACM |
66 | try: |
| 67 | machine_to_id['armeb'] = audit.MACH_ARMEB | |
| 68 | except: | |
| 69 | pass | |
| 6cc73614 ACM |
70 | machine_id = machine_to_id[os.uname()[4]] |
| 71 | except: | |
| 72 | if not audit_package_warned: | |
| 73 | audit_package_warned = True | |
| b416e204 TS |
74 | print "Install the audit-libs-python package to get syscall names.\n" \ |
| 75 | "For example:\n # apt-get install python-audit (Ubuntu)" \ | |
| 76 | "\n # yum install audit-libs-python (Fedora)" \ | |
| 77 | "\n etc.\n" | |
| 6cc73614 ACM |
78 | |
| 79 | def syscall_name(id): | |
| 80 | try: | |
| 81 | return audit.audit_syscall_to_name(id, machine_id) | |
| 82 | except: | |
| 83 | return str(id) | |
| 84 | ||
| 85 | def strerror(nr): | |
| 86 | try: | |
| 87 | return errno.errorcode[abs(nr)] | |
| 88 | except: | |
| 89 | return "Unknown %d errno" % nr |