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2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/tools/power/pm-graph/bootgraph.py
....@@ -1,4 +1,5 @@
1
-#!/usr/bin/python2
1
+#!/usr/bin/env python3
2
+# SPDX-License-Identifier: GPL-2.0-only
23 #
34 # Tool for analyzing boot timing
45 # Copyright (c) 2013, Intel Corporation.
....@@ -33,6 +34,10 @@
3334 from datetime import datetime, timedelta
3435 from subprocess import call, Popen, PIPE
3536 import sleepgraph as aslib
37
+
38
+def pprint(msg):
39
+	print(msg)
40
+	sys.stdout.flush()
3641 
3742 # ----------------- CLASSES --------------------
3843 
....@@ -85,7 +90,7 @@
8590 		cmdline = 'initcall_debug log_buf_len=32M'
8691 		if self.useftrace:
8792 			if self.cpucount > 0:
88
-				bs = min(self.memtotal / 2, 2*1024*1024) / self.cpucount
93
+				bs = min(self.memtotal // 2, 2*1024*1024) // self.cpucount
8994 			else:
9095 				bs = 131072
9196 			cmdline += ' trace_buf_size=%dK trace_clock=global '\
....@@ -141,13 +146,13 @@
141146 			if arg in ['-h', '-v', '-cronjob', '-reboot', '-verbose']:
142147 				continue
143148 			elif arg in ['-o', '-dmesg', '-ftrace', '-func']:
144
-				args.next()
149
+				next(args)
145150 				continue
146151 			elif arg == '-result':
147
-				cmdline += ' %s "%s"' % (arg, os.path.abspath(args.next()))
152
+				cmdline += ' %s "%s"' % (arg, os.path.abspath(next(args)))
148153 				continue
149154 			elif arg == '-cgskip':
150
-				file = self.configFile(args.next())
155
+				file = self.configFile(next(args))
151156 				cmdline += ' %s "%s"' % (arg, os.path.abspath(file))
152157 				continue
153158 			cmdline += ' '+arg
....@@ -157,11 +162,11 @@
157162 		return cmdline
158163 	def manualRebootRequired(self):
159164 		cmdline = self.kernelParams()
160
-		print 'To generate a new timeline manually, follow these steps:\n'
161
-		print '1. Add the CMDLINE string to your kernel command line.'
162
-		print '2. Reboot the system.'
163
-		print '3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n'
164
-		print 'CMDLINE="%s"' % cmdline
165
+		pprint('To generate a new timeline manually, follow these steps:\n\n'\
166
+		'1. Add the CMDLINE string to your kernel command line.\n'\
167
+		'2. Reboot the system.\n'\
168
+		'3. After reboot, re-run this tool with the same arguments but no command (w/o -reboot or -manual).\n\n'\
169
+		'CMDLINE="%s"' % cmdline)
165170 		sys.exit()
166171 	def blGrub(self):
167172 		blcmd = ''
....@@ -296,11 +301,11 @@
296301 	tp = aslib.TestProps()
297302 	devtemp = dict()
298303 	if(sysvals.dmesgfile):
299
-		lf = open(sysvals.dmesgfile, 'r')
304
+		lf = open(sysvals.dmesgfile, 'rb')
300305 	else:
301306 		lf = Popen('dmesg', stdout=PIPE).stdout
302307 	for line in lf:
303
-		line = line.replace('\r\n', '')
308
+		line = aslib.ascii(line).replace('\r\n', '')
304309 		# grab the stamp and sysinfo
305310 		if re.match(tp.stampfmt, line):
306311 			tp.stamp = line
....@@ -329,9 +334,9 @@
329334 			if(not sysvals.stamp['kernel']):
330335 				sysvals.stamp['kernel'] = sysvals.kernelVersion(msg)
331336 			continue
332
-		m = re.match('.* setting system clock to (?P<t>.*) UTC.*', msg)
337
+		m = re.match('.* setting system clock to (?P<d>[0-9\-]*)[ A-Z](?P<t>[0-9:]*) UTC.*', msg)
333338 		if(m):
334
-			bt = datetime.strptime(m.group('t'), '%Y-%m-%d %H:%M:%S')
339
+			bt = datetime.strptime(m.group('d')+' '+m.group('t'), '%Y-%m-%d %H:%M:%S')
335340 			bt = bt - timedelta(seconds=int(ktime))
336341 			data.boottime = bt.strftime('%Y-%m-%d_%H:%M:%S')
337342 			sysvals.stamp['time'] = bt.strftime('%B %d %Y, %I:%M:%S %p')
....@@ -352,7 +357,7 @@
352357 				data.newAction(phase, f, pid, start, ktime, int(r), int(t))
353358 				del devtemp[f]
354359 			continue
355
-		if(re.match('^Freeing unused kernel memory.*', msg)):
360
+		if(re.match('^Freeing unused kernel .*', msg)):
356361 			data.tUserMode = ktime
357362 			data.dmesg['kernel']['end'] = ktime
358363 			data.dmesg['user']['start'] = ktime
....@@ -431,7 +436,7 @@
431436 			if len(cg.list) < 1 or cg.invalid or (cg.end - cg.start == 0):
432437 				continue
433438 			if(not cg.postProcess()):
434
-				print('Sanity check failed for %s-%d' % (proc, pid))
439
+				pprint('Sanity check failed for %s-%d' % (proc, pid))
435440 				continue
436441 			# match cg data to devices
437442 			devname = data.deviceMatch(pid, cg)
....@@ -442,8 +447,8 @@
442447 				sysvals.vprint('%s callgraph found for %s %s-%d [%f - %f]' %\
443448 					(kind, cg.name, proc, pid, cg.start, cg.end))
444449 			elif len(cg.list) > 1000000:
445
-				print 'WARNING: the callgraph found for %s is massive! (%d lines)' %\
446
-					(devname, len(cg.list))
450
+				pprint('WARNING: the callgraph found for %s is massive! (%d lines)' %\
451
+					(devname, len(cg.list)))
447452 
448453 # Function: retrieveLogs
449454 # Description:
....@@ -528,7 +533,7 @@
528533 	tMax = data.end
529534 	tTotal = tMax - t0
530535 	if(tTotal == 0):
531
-		print('ERROR: No timeline data')
536
+		pprint('ERROR: No timeline data')
532537 		return False
533538 	user_mode = '%.0f'%(data.tUserMode*1000)
534539 	last_init = '%.0f'%(tTotal*1000)
....@@ -653,7 +658,7 @@
653658 		statinfo += '\t"%s": [\n\t\t"%s",\n' % (n, devstats[n]['info'])
654659 		if 'fstat' in devstats[n]:
655660 			funcs = devstats[n]['fstat']
656
-			for f in sorted(funcs, key=funcs.get, reverse=True):
661
+			for f in sorted(funcs, key=lambda k:(funcs[k], k), reverse=True):
657662 				if funcs[f][0] < 0.01 and len(funcs) > 10:
658663 					break
659664 				statinfo += '\t\t"%f|%s|%d",\n' % (funcs[f][0], f, funcs[f][1])
....@@ -733,8 +738,8 @@
733738 		op.write('@reboot python %s\n' % sysvals.cronjobCmdString())
734739 		op.close()
735740 		res = call([cmd, cronfile])
736
-	except Exception, e:
737
-		print 'Exception: %s' % str(e)
741
+	except Exception as e:
742
+		pprint('Exception: %s' % str(e))
738743 		shutil.move(backfile, cronfile)
739744 		res = -1
740745 	if res != 0:
....@@ -749,8 +754,8 @@
749754 		try:
750755 			call(sysvals.blexec, stderr=PIPE, stdout=PIPE,
751756 				env={'PATH': '.:/sbin:/usr/sbin:/usr/bin:/sbin:/bin'})
752
-		except Exception, e:
753
-			print 'Exception: %s\n' % str(e)
757
+		except Exception as e:
758
+			pprint('Exception: %s\n' % str(e))
754759 		return
755760 	# extract the option and create a grub config without it
756761 	sysvals.rootUser(True)
....@@ -796,8 +801,8 @@
796801 		op.close()
797802 		res = call(sysvals.blexec)
798803 		os.remove(grubfile)
799
-	except Exception, e:
800
-		print 'Exception: %s' % str(e)
804
+	except Exception as e:
805
+		pprint('Exception: %s' % str(e))
801806 		res = -1
802807 	# cleanup
803808 	shutil.move(tempfile, grubfile)
....@@ -821,7 +826,7 @@
821826 def doError(msg, help=False):
822827 	if help == True:
823828 		printHelp()
824
-	print 'ERROR: %s\n' % msg
829
+	pprint('ERROR: %s\n' % msg)
825830 	sysvals.outputResult({'error':msg})
826831 	sys.exit()
827832 
....@@ -829,52 +834,52 @@
829834 # Description:
830835 #	 print out the help text
831836 def printHelp():
832
-	print('')
833
-	print('%s v%s' % (sysvals.title, sysvals.version))
834
-	print('Usage: bootgraph <options> <command>')
835
-	print('')
836
-	print('Description:')
837
-	print('  This tool reads in a dmesg log of linux kernel boot and')
838
-	print('  creates an html representation of the boot timeline up to')
839
-	print('  the start of the init process.')
840
-	print('')
841
-	print('  If no specific command is given the tool reads the current dmesg')
842
-	print('  and/or ftrace log and creates a timeline')
843
-	print('')
844
-	print('  Generates output files in subdirectory: boot-yymmdd-HHMMSS')
845
-	print('   HTML output:                    <hostname>_boot.html')
846
-	print('   raw dmesg output:               <hostname>_boot_dmesg.txt')
847
-	print('   raw ftrace output:              <hostname>_boot_ftrace.txt')
848
-	print('')
849
-	print('Options:')
850
-	print('  -h            Print this help text')
851
-	print('  -v            Print the current tool version')
852
-	print('  -verbose      Print extra information during execution and analysis')
853
-	print('  -addlogs      Add the dmesg log to the html output')
854
-	print('  -result fn    Export a results table to a text file for parsing.')
855
-	print('  -o name       Overrides the output subdirectory name when running a new test')
856
-	print('                default: boot-{date}-{time}')
857
-	print(' [advanced]')
858
-	print('  -fstat        Use ftrace to add function detail and statistics (default: disabled)')
859
-	print('  -f/-callgraph Add callgraph detail, can be very large (default: disabled)')
860
-	print('  -maxdepth N   limit the callgraph data to N call levels (default: 2)')
861
-	print('  -mincg ms     Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)')
862
-	print('  -timeprec N   Number of significant digits in timestamps (0:S, 3:ms, [6:us])')
863
-	print('  -expandcg     pre-expand the callgraph data in the html output (default: disabled)')
864
-	print('  -func list    Limit ftrace to comma-delimited list of functions (default: do_one_initcall)')
865
-	print('  -cgfilter S   Filter the callgraph output in the timeline')
866
-	print('  -cgskip file  Callgraph functions to skip, off to disable (default: cgskip.txt)')
867
-	print('  -bl name      Use the following boot loader for kernel params (default: grub)')
868
-	print('  -reboot       Reboot the machine automatically and generate a new timeline')
869
-	print('  -manual       Show the steps to generate a new timeline manually (used with -reboot)')
870
-	print('')
871
-	print('Other commands:')
872
-	print('  -flistall     Print all functions capable of being captured in ftrace')
873
-	print('  -sysinfo      Print out system info extracted from BIOS')
874
-	print(' [redo]')
875
-	print('  -dmesg file   Create HTML output using dmesg input (used with -ftrace)')
876
-	print('  -ftrace file  Create HTML output using ftrace input (used with -dmesg)')
877
-	print('')
837
+	pprint('\n%s v%s\n'\
838
+	'Usage: bootgraph <options> <command>\n'\
839
+	'\n'\
840
+	'Description:\n'\
841
+	'  This tool reads in a dmesg log of linux kernel boot and\n'\
842
+	'  creates an html representation of the boot timeline up to\n'\
843
+	'  the start of the init process.\n'\
844
+	'\n'\
845
+	'  If no specific command is given the tool reads the current dmesg\n'\
846
+	'  and/or ftrace log and creates a timeline\n'\
847
+	'\n'\
848
+	'  Generates output files in subdirectory: boot-yymmdd-HHMMSS\n'\
849
+	'   HTML output:                    <hostname>_boot.html\n'\
850
+	'   raw dmesg output:               <hostname>_boot_dmesg.txt\n'\
851
+	'   raw ftrace output:              <hostname>_boot_ftrace.txt\n'\
852
+	'\n'\
853
+	'Options:\n'\
854
+	'  -h            Print this help text\n'\
855
+	'  -v            Print the current tool version\n'\
856
+	'  -verbose      Print extra information during execution and analysis\n'\
857
+	'  -addlogs      Add the dmesg log to the html output\n'\
858
+	'  -result fn    Export a results table to a text file for parsing.\n'\
859
+	'  -o name       Overrides the output subdirectory name when running a new test\n'\
860
+	'                default: boot-{date}-{time}\n'\
861
+	' [advanced]\n'\
862
+	'  -fstat        Use ftrace to add function detail and statistics (default: disabled)\n'\
863
+	'  -f/-callgraph Add callgraph detail, can be very large (default: disabled)\n'\
864
+	'  -maxdepth N   limit the callgraph data to N call levels (default: 2)\n'\
865
+	'  -mincg ms     Discard all callgraphs shorter than ms milliseconds (e.g. 0.001 for us)\n'\
866
+	'  -timeprec N   Number of significant digits in timestamps (0:S, 3:ms, [6:us])\n'\
867
+	'  -expandcg     pre-expand the callgraph data in the html output (default: disabled)\n'\
868
+	'  -func list    Limit ftrace to comma-delimited list of functions (default: do_one_initcall)\n'\
869
+	'  -cgfilter S   Filter the callgraph output in the timeline\n'\
870
+	'  -cgskip file  Callgraph functions to skip, off to disable (default: cgskip.txt)\n'\
871
+	'  -bl name      Use the following boot loader for kernel params (default: grub)\n'\
872
+	'  -reboot       Reboot the machine automatically and generate a new timeline\n'\
873
+	'  -manual       Show the steps to generate a new timeline manually (used with -reboot)\n'\
874
+	'\n'\
875
+	'Other commands:\n'\
876
+	'  -flistall     Print all functions capable of being captured in ftrace\n'\
877
+	'  -sysinfo      Print out system info extracted from BIOS\n'\
878
+	'  -which exec   Print an executable path, should function even without PATH\n'\
879
+	' [redo]\n'\
880
+	'  -dmesg file   Create HTML output using dmesg input (used with -ftrace)\n'\
881
+	'  -ftrace file  Create HTML output using ftrace input (used with -dmesg)\n'\
882
+	'' % (sysvals.title, sysvals.version))
878883 	return True
879884 
880885 # ----------------- MAIN --------------------
....@@ -895,7 +900,7 @@
895900 			printHelp()
896901 			sys.exit()
897902 		elif(arg == '-v'):
898
-			print("Version %s" % sysvals.version)
903
+			pprint("Version %s" % sysvals.version)
899904 			sys.exit()
900905 		elif(arg == '-verbose'):
901906 			sysvals.verbose = True
....@@ -912,13 +917,13 @@
912917 			sysvals.mincglen = aslib.getArgFloat('-mincg', args, 0.0, 10000.0)
913918 		elif(arg == '-cgfilter'):
914919 			try:
915
-				val = args.next()
920
+				val = next(args)
916921 			except:
917922 				doError('No callgraph functions supplied', True)
918923 			sysvals.setCallgraphFilter(val)
919924 		elif(arg == '-cgskip'):
920925 			try:
921
-				val = args.next()
926
+				val = next(args)
922927 			except:
923928 				doError('No file supplied', True)
924929 			if val.lower() in switchoff:
....@@ -929,7 +934,7 @@
929934 					doError('%s does not exist' % cgskip)
930935 		elif(arg == '-bl'):
931936 			try:
932
-				val = args.next()
937
+				val = next(args)
933938 			except:
934939 				doError('No boot loader name supplied', True)
935940 			if val.lower() not in ['grub']:
....@@ -942,7 +947,7 @@
942947 			sysvals.max_graph_depth = aslib.getArgInt('-maxdepth', args, 0, 1000)
943948 		elif(arg == '-func'):
944949 			try:
945
-				val = args.next()
950
+				val = next(args)
946951 			except:
947952 				doError('No filter functions supplied', True)
948953 			sysvals.useftrace = True
....@@ -951,7 +956,7 @@
951956 			sysvals.setGraphFilter(val)
952957 		elif(arg == '-ftrace'):
953958 			try:
954
-				val = args.next()
959
+				val = next(args)
955960 			except:
956961 				doError('No ftrace file supplied', True)
957962 			if(os.path.exists(val) == False):
....@@ -964,7 +969,7 @@
964969 			sysvals.cgexp = True
965970 		elif(arg == '-dmesg'):
966971 			try:
967
-				val = args.next()
972
+				val = next(args)
968973 			except:
969974 				doError('No dmesg file supplied', True)
970975 			if(os.path.exists(val) == False):
....@@ -973,13 +978,13 @@
973978 			sysvals.dmesgfile = val
974979 		elif(arg == '-o'):
975980 			try:
976
-				val = args.next()
981
+				val = next(args)
977982 			except:
978983 				doError('No subdirectory name supplied', True)
979984 			sysvals.testdir = sysvals.setOutputFolder(val)
980985 		elif(arg == '-result'):
981986 			try:
982
-				val = args.next()
987
+				val = next(args)
983988 			except:
984989 				doError('No result file supplied', True)
985990 			sysvals.result = val
....@@ -991,6 +996,17 @@
991996 		# remaining options are only for cron job use
992997 		elif(arg == '-cronjob'):
993998 			sysvals.iscronjob = True
999
+		elif(arg == '-which'):
1000
+			try:
1001
+				val = next(args)
1002
+			except:
1003
+				doError('No executable supplied', True)
1004
+			out = sysvals.getExec(val)
1005
+			if not out:
1006
+				print('%s not found' % val)
1007
+				sys.exit(1)
1008
+			print(out)
1009
+			sys.exit(0)
9941010 		else:
9951011 			doError('Invalid argument: '+arg, True)
9961012 
....@@ -1013,10 +1029,10 @@
10131029 			updateKernelParams()
10141030 		elif cmd == 'flistall':
10151031 			for f in sysvals.getBootFtraceFilterFunctions():
1016
-				print f
1032
+				print(f)
10171033 		elif cmd == 'checkbl':
10181034 			sysvals.getBootLoader()
1019
-			print 'Boot Loader: %s\n%s' % (sysvals.bootloader, sysvals.blexec)
1035
+			pprint('Boot Loader: %s\n%s' % (sysvals.bootloader, sysvals.blexec))
10201036 		elif(cmd == 'sysinfo'):
10211037 			sysvals.printSystemInfo(True)
10221038 		sys.exit()