--- /dev/null
+#!/usr/bin/python
+#
+# Tool for analyzing boot timing
+# Copyright (c) 2013, Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# Authors:
+# Todd Brandt <todd.e.brandt@linux.intel.com>
+#
+# Description:
+# This tool is designed to assist kernel and OS developers in optimizing
+# their linux stack's boot time. It creates an html representation of
+# the kernel boot timeline up to the start of the init process.
+#
+
+# ----------------- LIBRARIES --------------------
+
+import sys
+import time
+import os
+import string
+import re
+import platform
+import shutil
+from datetime import datetime, timedelta
+from subprocess import call, Popen, PIPE
+import analyze_suspend as aslib
+
+# ----------------- CLASSES --------------------
+
+# Class: SystemValues
+# Description:
+# A global, single-instance container used to
+# store system values and test parameters
+class SystemValues(aslib.SystemValues):
+ title = 'BootGraph'
+ version = 2.0
+ hostname = 'localhost'
+ testtime = ''
+ kernel = ''
+ dmesgfile = ''
+ ftracefile = ''
+ htmlfile = 'bootgraph.html'
+ outfile = ''
+ phoronix = False
+ addlogs = False
+ useftrace = False
+ usedevsrc = True
+ suspendmode = 'boot'
+ max_graph_depth = 2
+ graph_filter = 'do_one_initcall'
+ reboot = False
+ manual = False
+ iscronjob = False
+ timeformat = '%.6f'
+ def __init__(self):
+ if('LOG_FILE' in os.environ and 'TEST_RESULTS_IDENTIFIER' in os.environ):
+ self.phoronix = True
+ self.addlogs = True
+ self.outfile = os.environ['LOG_FILE']
+ self.htmlfile = os.environ['LOG_FILE']
+ self.hostname = platform.node()
+ self.testtime = datetime.now().strftime('%Y-%m-%d_%H:%M:%S')
+ if os.path.exists('/proc/version'):
+ fp = open('/proc/version', 'r')
+ val = fp.read().strip()
+ fp.close()
+ self.kernel = self.kernelVersion(val)
+ else:
+ self.kernel = 'unknown'
+ def kernelVersion(self, msg):
+ return msg.split()[2]
+ def kernelParams(self):
+ cmdline = 'initcall_debug log_buf_len=32M'
+ if self.useftrace:
+ cmdline += ' trace_buf_size=128M trace_clock=global '\
+ 'trace_options=nooverwrite,funcgraph-abstime,funcgraph-cpu,'\
+ 'funcgraph-duration,funcgraph-proc,funcgraph-tail,'\
+ 'nofuncgraph-overhead,context-info,graph-time '\
+ 'ftrace=function_graph '\
+ 'ftrace_graph_max_depth=%d '\
+ 'ftrace_graph_filter=%s' % \
+ (self.max_graph_depth, self.graph_filter)
+ return cmdline
+ def setGraphFilter(self, val):
+ fp = open(self.tpath+'available_filter_functions')
+ master = fp.read().split('\n')
+ fp.close()
+ for i in val.split(','):
+ func = i.strip()
+ if func not in master:
+ doError('function "%s" not available for ftrace' % func)
+ self.graph_filter = val
+ def cronjobCmdString(self):
+ cmdline = '%s -cronjob' % os.path.abspath(sys.argv[0])
+ args = iter(sys.argv[1:])
+ for arg in args:
+ if arg in ['-h', '-v', '-cronjob', '-reboot']:
+ continue
+ elif arg in ['-o', '-dmesg', '-ftrace', '-filter']:
+ args.next()
+ continue
+ cmdline += ' '+arg
+ if self.graph_filter != 'do_one_initcall':
+ cmdline += ' -filter "%s"' % self.graph_filter
+ cmdline += ' -o "%s"' % os.path.abspath(self.htmlfile)
+ return cmdline
+ def manualRebootRequired(self):
+ cmdline = self.kernelParams()
+ print 'To generate a new timeline manually, follow these steps:\n'
+ print '1. Add the CMDLINE string to your kernel command line.'
+ print '2. Reboot the system.'
+ print '3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n'
+ print 'CMDLINE="%s"' % cmdline
+ sys.exit()
+
+sysvals = SystemValues()
+
+# Class: Data
+# Description:
+# The primary container for test data.
+class Data(aslib.Data):
+ dmesg = {} # root data structure
+ start = 0.0 # test start
+ end = 0.0 # test end
+ dmesgtext = [] # dmesg text file in memory
+ testnumber = 0
+ idstr = ''
+ html_device_id = 0
+ valid = False
+ initstart = 0.0
+ boottime = ''
+ phases = ['boot']
+ do_one_initcall = False
+ def __init__(self, num):
+ self.testnumber = num
+ self.idstr = 'a'
+ self.dmesgtext = []
+ self.dmesg = {
+ 'boot': {'list': dict(), 'start': -1.0, 'end': -1.0, 'row': 0, 'color': '#dddddd'}
+ }
+ def deviceTopology(self):
+ return ''
+ def newAction(self, phase, name, start, end, ret, ulen):
+ # new device callback for a specific phase
+ self.html_device_id += 1
+ devid = '%s%d' % (self.idstr, self.html_device_id)
+ list = self.dmesg[phase]['list']
+ length = -1.0
+ if(start >= 0 and end >= 0):
+ length = end - start
+ i = 2
+ origname = name
+ while(name in list):
+ name = '%s[%d]' % (origname, i)
+ i += 1
+ list[name] = {'name': name, 'start': start, 'end': end,
+ 'pid': 0, 'length': length, 'row': 0, 'id': devid,
+ 'ret': ret, 'ulen': ulen }
+ return name
+ def deviceMatch(self, cg):
+ if cg.end - cg.start == 0:
+ return True
+ list = self.dmesg['boot']['list']
+ for devname in list:
+ dev = list[devname]
+ if cg.name == 'do_one_initcall':
+ if(cg.start <= dev['start'] and cg.end >= dev['end'] and dev['length'] > 0):
+ dev['ftrace'] = cg
+ self.do_one_initcall = True
+ return True
+ else:
+ if(cg.start > dev['start'] and cg.end < dev['end']):
+ if 'ftraces' not in dev:
+ dev['ftraces'] = []
+ dev['ftraces'].append(cg)
+ return True
+ return False
+
+# ----------------- FUNCTIONS --------------------
+
+# Function: loadKernelLog
+# Description:
+# Load a raw kernel log from dmesg
+def loadKernelLog():
+ data = Data(0)
+ data.dmesg['boot']['start'] = data.start = ktime = 0.0
+ sysvals.stamp = {
+ 'time': datetime.now().strftime('%B %d %Y, %I:%M:%S %p'),
+ 'host': sysvals.hostname,
+ 'mode': 'boot', 'kernel': ''}
+
+ devtemp = dict()
+ if(sysvals.dmesgfile):
+ lf = open(sysvals.dmesgfile, 'r')
+ else:
+ lf = Popen('dmesg', stdout=PIPE).stdout
+ for line in lf:
+ line = line.replace('\r\n', '')
+ idx = line.find('[')
+ if idx > 1:
+ line = line[idx:]
+ m = re.match('[ \t]*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)', line)
+ if(not m):
+ continue
+ ktime = float(m.group('ktime'))
+ if(ktime > 120):
+ break
+ msg = m.group('msg')
+ data.end = data.initstart = ktime
+ data.dmesgtext.append(line)
+ if(ktime == 0.0 and re.match('^Linux version .*', msg)):
+ if(not sysvals.stamp['kernel']):
+ sysvals.stamp['kernel'] = sysvals.kernelVersion(msg)
+ continue
+ m = re.match('.* setting system clock to (?P<t>.*) UTC.*', msg)
+ if(m):
+ bt = datetime.strptime(m.group('t'), '%Y-%m-%d %H:%M:%S')
+ bt = bt - timedelta(seconds=int(ktime))
+ data.boottime = bt.strftime('%Y-%m-%d_%H:%M:%S')
+ sysvals.stamp['time'] = bt.strftime('%B %d %Y, %I:%M:%S %p')
+ continue
+ m = re.match('^calling *(?P<f>.*)\+.*', msg)
+ if(m):
+ devtemp[m.group('f')] = ktime
+ continue
+ m = re.match('^initcall *(?P<f>.*)\+.* returned (?P<r>.*) after (?P<t>.*) usecs', msg)
+ if(m):
+ data.valid = True
+ f, r, t = m.group('f', 'r', 't')
+ if(f in devtemp):
+ data.newAction('boot', f, devtemp[f], ktime, int(r), int(t))
+ data.end = ktime
+ del devtemp[f]
+ continue
+ if(re.match('^Freeing unused kernel memory.*', msg)):
+ break
+
+ data.dmesg['boot']['end'] = data.end
+ lf.close()
+ return data
+
+# Function: loadTraceLog
+# Description:
+# Check if trace is available and copy to a temp file
+def loadTraceLog(data):
+ # load the data to a temp file if none given
+ if not sysvals.ftracefile:
+ lib = aslib.sysvals
+ aslib.rootCheck(True)
+ if not lib.verifyFtrace():
+ doError('ftrace not available')
+ if lib.fgetVal('current_tracer').strip() != 'function_graph':
+ doError('ftrace not configured for a boot callgraph')
+ sysvals.ftracefile = '/tmp/boot_ftrace.%s.txt' % os.getpid()
+ call('cat '+lib.tpath+'trace > '+sysvals.ftracefile, shell=True)
+ if not sysvals.ftracefile:
+ doError('No trace data available')
+
+ # parse the trace log
+ ftemp = dict()
+ tp = aslib.TestProps()
+ tp.setTracerType('function_graph')
+ tf = open(sysvals.ftracefile, 'r')
+ for line in tf:
+ if line[0] == '#':
+ continue
+ m = re.match(tp.ftrace_line_fmt, line.strip())
+ if(not m):
+ continue
+ m_time, m_proc, m_pid, m_msg, m_dur = \
+ m.group('time', 'proc', 'pid', 'msg', 'dur')
+ if float(m_time) > data.end:
+ break
+ if(m_time and m_pid and m_msg):
+ t = aslib.FTraceLine(m_time, m_msg, m_dur)
+ pid = int(m_pid)
+ else:
+ continue
+ if t.fevent or t.fkprobe:
+ continue
+ key = (m_proc, pid)
+ if(key not in ftemp):
+ ftemp[key] = []
+ ftemp[key].append(aslib.FTraceCallGraph(pid))
+ cg = ftemp[key][-1]
+ if(cg.addLine(t)):
+ ftemp[key].append(aslib.FTraceCallGraph(pid))
+ tf.close()
+
+ # add the callgraph data to the device hierarchy
+ for key in ftemp:
+ proc, pid = key
+ for cg in ftemp[key]:
+ if len(cg.list) < 1 or cg.invalid:
+ continue
+ if(not cg.postProcess()):
+ print('Sanity check failed for %s-%d' % (proc, pid))
+ continue
+ # match cg data to devices
+ if not data.deviceMatch(cg):
+ print ' BAD: %s %s-%d [%f - %f]' % (cg.name, proc, pid, cg.start, cg.end)
+
+# Function: colorForName
+# Description:
+# Generate a repeatable color from a list for a given name
+def colorForName(name):
+ list = [
+ ('c1', '#ec9999'),
+ ('c2', '#ffc1a6'),
+ ('c3', '#fff0a6'),
+ ('c4', '#adf199'),
+ ('c5', '#9fadea'),
+ ('c6', '#a699c1'),
+ ('c7', '#ad99b4'),
+ ('c8', '#eaffea'),
+ ('c9', '#dcecfb'),
+ ('c10', '#ffffea')
+ ]
+ i = 0
+ total = 0
+ count = len(list)
+ while i < len(name):
+ total += ord(name[i])
+ i += 1
+ return list[total % count]
+
+def cgOverview(cg, minlen):
+ stats = dict()
+ large = []
+ for l in cg.list:
+ if l.fcall and l.depth == 1:
+ if l.length >= minlen:
+ large.append(l)
+ if l.name not in stats:
+ stats[l.name] = [0, 0.0]
+ stats[l.name][0] += (l.length * 1000.0)
+ stats[l.name][1] += 1
+ return (large, stats)
+
+# Function: createBootGraph
+# Description:
+# Create the output html file from the resident test data
+# Arguments:
+# testruns: array of Data objects from parseKernelLog or parseTraceLog
+# Output:
+# True if the html file was created, false if it failed
+def createBootGraph(data, embedded):
+ # html function templates
+ html_srccall = '<div id={6} title="{5}" class="srccall" style="left:{1}%;top:{2}px;height:{3}px;width:{4}%;line-height:{3}px;">{0}</div>\n'
+ html_timetotal = '<table class="time1">\n<tr>'\
+ '<td class="blue">Time from Kernel Boot to start of User Mode: <b>{0} ms</b></td>'\
+ '</tr>\n</table>\n'
+
+ # device timeline
+ devtl = aslib.Timeline(100, 20)
+
+ # write the test title and general info header
+ devtl.createHeader(sysvals, 'noftrace')
+
+ # Generate the header for this timeline
+ t0 = data.start
+ tMax = data.end
+ tTotal = tMax - t0
+ if(tTotal == 0):
+ print('ERROR: No timeline data')
+ return False
+ boot_time = '%.0f'%(tTotal*1000)
+ devtl.html += html_timetotal.format(boot_time)
+
+ # determine the maximum number of rows we need to draw
+ phase = 'boot'
+ list = data.dmesg[phase]['list']
+ devlist = []
+ for devname in list:
+ d = aslib.DevItem(0, phase, list[devname])
+ devlist.append(d)
+ devtl.getPhaseRows(devlist)
+ devtl.calcTotalRows()
+
+ # draw the timeline background
+ devtl.createZoomBox()
+ boot = data.dmesg[phase]
+ length = boot['end']-boot['start']
+ left = '%.3f' % (((boot['start']-t0)*100.0)/tTotal)
+ width = '%.3f' % ((length*100.0)/tTotal)
+ devtl.html += devtl.html_tblock.format(phase, left, width, devtl.scaleH)
+ devtl.html += devtl.html_phase.format('0', '100', \
+ '%.3f'%devtl.scaleH, '%.3f'%devtl.bodyH, \
+ 'white', '')
+
+ # draw the device timeline
+ num = 0
+ devstats = dict()
+ for devname in sorted(list):
+ cls, color = colorForName(devname)
+ dev = list[devname]
+ info = '@|%.3f|%.3f|%.3f|%d' % (dev['start']*1000.0, dev['end']*1000.0,
+ dev['ulen']/1000.0, dev['ret'])
+ devstats[dev['id']] = {'info':info}
+ dev['color'] = color
+ height = devtl.phaseRowHeight(0, phase, dev['row'])
+ top = '%.6f' % ((dev['row']*height) + devtl.scaleH)
+ left = '%.6f' % (((dev['start']-t0)*100)/tTotal)
+ width = '%.6f' % (((dev['end']-dev['start'])*100)/tTotal)
+ length = ' (%0.3f ms) ' % ((dev['end']-dev['start'])*1000)
+ devtl.html += devtl.html_device.format(dev['id'],
+ devname+length+'kernel_mode', left, top, '%.3f'%height,
+ width, devname, ' '+cls, '')
+ rowtop = devtl.phaseRowTop(0, phase, dev['row'])
+ height = '%.6f' % (devtl.rowH / 2)
+ top = '%.6f' % (rowtop + devtl.scaleH + (devtl.rowH / 2))
+ if data.do_one_initcall:
+ if('ftrace' not in dev):
+ continue
+ cg = dev['ftrace']
+ large, stats = cgOverview(cg, 0.001)
+ devstats[dev['id']]['fstat'] = stats
+ for l in large:
+ left = '%f' % (((l.time-t0)*100)/tTotal)
+ width = '%f' % (l.length*100/tTotal)
+ title = '%s (%0.3fms)' % (l.name, l.length * 1000.0)
+ devtl.html += html_srccall.format(l.name, left,
+ top, height, width, title, 'x%d'%num)
+ num += 1
+ continue
+ if('ftraces' not in dev):
+ continue
+ for cg in dev['ftraces']:
+ left = '%f' % (((cg.start-t0)*100)/tTotal)
+ width = '%f' % ((cg.end-cg.start)*100/tTotal)
+ cglen = (cg.end - cg.start) * 1000.0
+ title = '%s (%0.3fms)' % (cg.name, cglen)
+ cg.id = 'x%d' % num
+ devtl.html += html_srccall.format(cg.name, left,
+ top, height, width, title, dev['id']+cg.id)
+ num += 1
+
+ # draw the time scale, try to make the number of labels readable
+ devtl.createTimeScale(t0, tMax, tTotal, phase)
+ devtl.html += '</div>\n'
+
+ # timeline is finished
+ devtl.html += '</div>\n</div>\n'
+
+ if(sysvals.outfile == sysvals.htmlfile):
+ hf = open(sysvals.htmlfile, 'a')
+ else:
+ hf = open(sysvals.htmlfile, 'w')
+
+ # add the css if this is not an embedded run
+ extra = '\
+ .c1 {background:rgba(209,0,0,0.4);}\n\
+ .c2 {background:rgba(255,102,34,0.4);}\n\
+ .c3 {background:rgba(255,218,33,0.4);}\n\
+ .c4 {background:rgba(51,221,0,0.4);}\n\
+ .c5 {background:rgba(17,51,204,0.4);}\n\
+ .c6 {background:rgba(34,0,102,0.4);}\n\
+ .c7 {background:rgba(51,0,68,0.4);}\n\
+ .c8 {background:rgba(204,255,204,0.4);}\n\
+ .c9 {background:rgba(169,208,245,0.4);}\n\
+ .c10 {background:rgba(255,255,204,0.4);}\n\
+ .vt {transform:rotate(-60deg);transform-origin:0 0;}\n\
+ table.fstat {table-layout:fixed;padding:150px 15px 0 0;font-size:10px;column-width:30px;}\n\
+ .fstat th {width:55px;}\n\
+ .fstat td {text-align:left;width:35px;}\n\
+ .srccall {position:absolute;font-size:10px;z-index:7;overflow:hidden;color:black;text-align:center;white-space:nowrap;border-radius:5px;border:1px solid black;background:linear-gradient(to bottom right,#CCC,#969696);}\n\
+ .srccall:hover {color:white;font-weight:bold;border:1px solid white;}\n'
+ if(not embedded):
+ aslib.addCSS(hf, sysvals, 1, False, extra)
+
+ # write the device timeline
+ hf.write(devtl.html)
+
+ # add boot specific html
+ statinfo = 'var devstats = {\n'
+ for n in sorted(devstats):
+ statinfo += '\t"%s": [\n\t\t"%s",\n' % (n, devstats[n]['info'])
+ if 'fstat' in devstats[n]:
+ funcs = devstats[n]['fstat']
+ for f in sorted(funcs, key=funcs.get, reverse=True):
+ if funcs[f][0] < 0.01 and len(funcs) > 10:
+ break
+ statinfo += '\t\t"%f|%s|%d",\n' % (funcs[f][0], f, funcs[f][1])
+ statinfo += '\t],\n'
+ statinfo += '};\n'
+ html = \
+ '<div id="devicedetailtitle"></div>\n'\
+ '<div id="devicedetail" style="display:none;">\n'\
+ '<div id="devicedetail0">\n'\
+ '<div id="kernel_mode" class="phaselet" style="left:0%;width:100%;background:#DDDDDD"></div>\n'\
+ '</div>\n</div>\n'\
+ '<script type="text/javascript">\n'+statinfo+\
+ '</script>\n'
+ hf.write(html)
+
+ # add the callgraph html
+ if(sysvals.usecallgraph):
+ aslib.addCallgraphs(sysvals, hf, data)
+
+ # add the dmesg log as a hidden div
+ if sysvals.addlogs:
+ hf.write('<div id="dmesglog" style="display:none;">\n')
+ for line in data.dmesgtext:
+ line = line.replace('<', '<').replace('>', '>')
+ hf.write(line)
+ hf.write('</div>\n')
+
+ if(not embedded):
+ # write the footer and close
+ aslib.addScriptCode(hf, [data])
+ hf.write('</body>\n</html>\n')
+ else:
+ # embedded out will be loaded in a page, skip the js
+ hf.write('<div id=bounds style=display:none>%f,%f</div>' % \
+ (data.start*1000, data.initstart*1000))
+ hf.close()
+ return True
+
+# Function: updateCron
+# Description:
+# (restore=False) Set the tool to run automatically on reboot
+# (restore=True) Restore the original crontab
+def updateCron(restore=False):
+ if not restore:
+ sysvals.rootUser(True)
+ crondir = '/var/spool/cron/crontabs/'
+ cronfile = crondir+'root'
+ backfile = crondir+'root-analyze_boot-backup'
+ if not os.path.exists(crondir):
+ doError('%s not found' % crondir)
+ out = Popen(['which', 'crontab'], stdout=PIPE).stdout.read()
+ if not out:
+ doError('crontab not found')
+ # on restore: move the backup cron back into place
+ if restore:
+ if os.path.exists(backfile):
+ shutil.move(backfile, cronfile)
+ return
+ # backup current cron and install new one with reboot
+ if os.path.exists(cronfile):
+ shutil.move(cronfile, backfile)
+ else:
+ fp = open(backfile, 'w')
+ fp.close()
+ res = -1
+ try:
+ fp = open(backfile, 'r')
+ op = open(cronfile, 'w')
+ for line in fp:
+ if '@reboot' not in line:
+ op.write(line)
+ continue
+ fp.close()
+ op.write('@reboot python %s\n' % sysvals.cronjobCmdString())
+ op.close()
+ res = call('crontab %s' % cronfile, shell=True)
+ except Exception, e:
+ print 'Exception: %s' % str(e)
+ shutil.move(backfile, cronfile)
+ res = -1
+ if res != 0:
+ doError('crontab failed')
+
+# Function: updateGrub
+# Description:
+# update grub.cfg for all kernels with our parameters
+def updateGrub(restore=False):
+ # call update-grub on restore
+ if restore:
+ try:
+ call(['update-grub'], stderr=PIPE, stdout=PIPE,
+ env={'PATH': '.:/sbin:/usr/sbin:/usr/bin:/sbin:/bin'})
+ except Exception, e:
+ print 'Exception: %s\n' % str(e)
+ return
+ # verify we can do this
+ sysvals.rootUser(True)
+ grubfile = '/etc/default/grub'
+ if not os.path.exists(grubfile):
+ print 'ERROR: Unable to set the kernel parameters via grub.\n'
+ sysvals.manualRebootRequired()
+ out = Popen(['which', 'update-grub'], stdout=PIPE).stdout.read()
+ if not out:
+ print 'ERROR: Unable to set the kernel parameters via grub.\n'
+ sysvals.manualRebootRequired()
+
+ # extract the option and create a grub config without it
+ tgtopt = 'GRUB_CMDLINE_LINUX_DEFAULT'
+ cmdline = ''
+ tempfile = '/etc/default/grub.analyze_boot'
+ shutil.move(grubfile, tempfile)
+ res = -1
+ try:
+ fp = open(tempfile, 'r')
+ op = open(grubfile, 'w')
+ cont = False
+ for line in fp:
+ line = line.strip()
+ if len(line) == 0 or line[0] == '#':
+ continue
+ opt = line.split('=')[0].strip()
+ if opt == tgtopt:
+ cmdline = line.split('=', 1)[1].strip('\\')
+ if line[-1] == '\\':
+ cont = True
+ elif cont:
+ cmdline += line.strip('\\')
+ if line[-1] != '\\':
+ cont = False
+ else:
+ op.write('%s\n' % line)
+ fp.close()
+ # if the target option value is in quotes, strip them
+ sp = '"'
+ val = cmdline.strip()
+ if val[0] == '\'' or val[0] == '"':
+ sp = val[0]
+ val = val.strip(sp)
+ cmdline = val
+ # append our cmd line options
+ if len(cmdline) > 0:
+ cmdline += ' '
+ cmdline += sysvals.kernelParams()
+ # write out the updated target option
+ op.write('\n%s=%s%s%s\n' % (tgtopt, sp, cmdline, sp))
+ op.close()
+ res = call('update-grub')
+ os.remove(grubfile)
+ except Exception, e:
+ print 'Exception: %s' % str(e)
+ res = -1
+ # cleanup
+ shutil.move(tempfile, grubfile)
+ if res != 0:
+ doError('update-grub failed')
+
+# Function: doError
+# Description:
+# generic error function for catastrphic failures
+# Arguments:
+# msg: the error message to print
+# help: True if printHelp should be called after, False otherwise
+def doError(msg, help=False):
+ if help == True:
+ printHelp()
+ print 'ERROR: %s\n' % msg
+ sys.exit()
+
+# Function: printHelp
+# Description:
+# print out the help text
+def printHelp():
+ print('')
+ print('%s v%.1f' % (sysvals.title, sysvals.version))
+ print('Usage: bootgraph <options> <command>')
+ print('')
+ print('Description:')
+ print(' This tool reads in a dmesg log of linux kernel boot and')
+ print(' creates an html representation of the boot timeline up to')
+ print(' the start of the init process.')
+ print('')
+ print(' If no specific command is given the tool reads the current dmesg')
+ print(' and/or ftrace log and outputs bootgraph.html')
+ print('')
+ print('Options:')
+ print(' -h Print this help text')
+ print(' -v Print the current tool version')
+ print(' -addlogs Add the dmesg log to the html output')
+ print(' -o file Html timeline name (default: bootgraph.html)')
+ print(' [advanced]')
+ print(' -f Use ftrace to add function detail (default: disabled)')
+ print(' -callgraph Add callgraph detail, can be very large (default: disabled)')
+ print(' -maxdepth N limit the callgraph data to N call levels (default: 2)')
+ print(' -mincg ms Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)')
+ print(' -timeprec N Number of significant digits in timestamps (0:S, 3:ms, [6:us])')
+ print(' -expandcg pre-expand the callgraph data in the html output (default: disabled)')
+ print(' -filter list Limit ftrace to comma-delimited list of functions (default: do_one_initcall)')
+ print(' [commands]')
+ print(' -reboot Reboot the machine automatically and generate a new timeline')
+ print(' -manual Show the requirements to generate a new timeline manually')
+ print(' -dmesg file Load a stored dmesg file (used with -ftrace)')
+ print(' -ftrace file Load a stored ftrace file (used with -dmesg)')
+ print(' -flistall Print all functions capable of being captured in ftrace')
+ print('')
+ return True
+
+# ----------------- MAIN --------------------
+# exec start (skipped if script is loaded as library)
+if __name__ == '__main__':
+ # loop through the command line arguments
+ cmd = ''
+ simplecmds = ['-updategrub', '-flistall']
+ args = iter(sys.argv[1:])
+ for arg in args:
+ if(arg == '-h'):
+ printHelp()
+ sys.exit()
+ elif(arg == '-v'):
+ print("Version %.1f" % sysvals.version)
+ sys.exit()
+ elif(arg in simplecmds):
+ cmd = arg[1:]
+ elif(arg == '-f'):
+ sysvals.useftrace = True
+ elif(arg == '-callgraph'):
+ sysvals.useftrace = True
+ sysvals.usecallgraph = True
+ elif(arg == '-mincg'):
+ sysvals.mincglen = aslib.getArgFloat('-mincg', args, 0.0, 10000.0)
+ elif(arg == '-timeprec'):
+ sysvals.setPrecision(aslib.getArgInt('-timeprec', args, 0, 6))
+ elif(arg == '-maxdepth'):
+ sysvals.max_graph_depth = aslib.getArgInt('-maxdepth', args, 0, 1000)
+ elif(arg == '-filter'):
+ try:
+ val = args.next()
+ except:
+ doError('No filter functions supplied', True)
+ aslib.rootCheck(True)
+ sysvals.setGraphFilter(val)
+ elif(arg == '-ftrace'):
+ try:
+ val = args.next()
+ except:
+ doError('No ftrace file supplied', True)
+ if(os.path.exists(val) == False):
+ doError('%s does not exist' % val)
+ sysvals.ftracefile = val
+ elif(arg == '-addlogs'):
+ sysvals.addlogs = True
+ elif(arg == '-expandcg'):
+ sysvals.cgexp = True
+ elif(arg == '-dmesg'):
+ try:
+ val = args.next()
+ except:
+ doError('No dmesg file supplied', True)
+ if(os.path.exists(val) == False):
+ doError('%s does not exist' % val)
+ if(sysvals.htmlfile == val or sysvals.outfile == val):
+ doError('Output filename collision')
+ sysvals.dmesgfile = val
+ elif(arg == '-o'):
+ try:
+ val = args.next()
+ except:
+ doError('No HTML filename supplied', True)
+ if(sysvals.dmesgfile == val or sysvals.ftracefile == val):
+ doError('Output filename collision')
+ sysvals.htmlfile = val
+ elif(arg == '-reboot'):
+ if sysvals.iscronjob:
+ doError('-reboot and -cronjob are incompatible')
+ sysvals.reboot = True
+ elif(arg == '-manual'):
+ sysvals.reboot = True
+ sysvals.manual = True
+ # remaining options are only for cron job use
+ elif(arg == '-cronjob'):
+ sysvals.iscronjob = True
+ if sysvals.reboot:
+ doError('-reboot and -cronjob are incompatible')
+ else:
+ doError('Invalid argument: '+arg, True)
+
+ if cmd != '':
+ if cmd == 'updategrub':
+ updateGrub()
+ elif cmd == 'flistall':
+ sysvals.getFtraceFilterFunctions(False)
+ sys.exit()
+
+ # update grub, setup a cronjob, and reboot
+ if sysvals.reboot:
+ if not sysvals.manual:
+ updateGrub()
+ updateCron()
+ call('reboot')
+ else:
+ sysvals.manualRebootRequired()
+ sys.exit()
+
+ # disable the cronjob
+ if sysvals.iscronjob:
+ updateCron(True)
+ updateGrub(True)
+
+ data = loadKernelLog()
+ if sysvals.useftrace:
+ loadTraceLog(data)
+ if sysvals.iscronjob:
+ try:
+ sysvals.fsetVal('0', 'tracing_on')
+ except:
+ pass
+
+ if(sysvals.outfile and sysvals.phoronix):
+ fp = open(sysvals.outfile, 'w')
+ fp.write('pass %s initstart %.3f end %.3f boot %s\n' %
+ (data.valid, data.initstart*1000, data.end*1000, data.boottime))
+ fp.close()
+ if(not data.valid):
+ if sysvals.dmesgfile:
+ doError('No initcall data found in %s' % sysvals.dmesgfile)
+ else:
+ doError('No initcall data found, is initcall_debug enabled?')
+
+ print(' Host: %s' % sysvals.hostname)
+ print(' Test time: %s' % sysvals.testtime)
+ print(' Boot time: %s' % data.boottime)
+ print('Kernel Version: %s' % sysvals.kernel)
+ print(' Kernel start: %.3f' % (data.start * 1000))
+ print(' init start: %.3f' % (data.initstart * 1000))
+
+ createBootGraph(data, sysvals.phoronix)
projects / karo-tx-linux.git / commitdiff