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1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14use IO::Handle;
15
16my $VERSION = "0.2";
17
18$| = 1;
19
20my %opt;
21my %repeat_tests;
22my %repeats;
23my %evals;
24
25#default opts
26my %default = (
27 "MAILER" => "sendmail", # default mailer
28 "EMAIL_ON_ERROR" => 1,
29 "EMAIL_WHEN_FINISHED" => 1,
30 "EMAIL_WHEN_CANCELED" => 0,
31 "EMAIL_WHEN_STARTED" => 0,
32 "NUM_TESTS" => 1,
33 "TEST_TYPE" => "build",
34 "BUILD_TYPE" => "oldconfig",
35 "MAKE_CMD" => "make",
36 "CLOSE_CONSOLE_SIGNAL" => "INT",
37 "TIMEOUT" => 120,
38 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
39 "SLEEP_TIME" => 60, # sleep time between tests
40 "BUILD_NOCLEAN" => 0,
41 "REBOOT_ON_ERROR" => 0,
42 "POWEROFF_ON_ERROR" => 0,
43 "REBOOT_ON_SUCCESS" => 1,
44 "POWEROFF_ON_SUCCESS" => 0,
45 "BUILD_OPTIONS" => "",
46 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
47 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
48 "CLEAR_LOG" => 0,
49 "BISECT_MANUAL" => 0,
50 "BISECT_SKIP" => 1,
51 "BISECT_TRIES" => 1,
52 "MIN_CONFIG_TYPE" => "boot",
53 "SUCCESS_LINE" => "login:",
54 "DETECT_TRIPLE_FAULT" => 1,
55 "NO_INSTALL" => 0,
56 "BOOTED_TIMEOUT" => 1,
57 "DIE_ON_FAILURE" => 1,
58 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
59 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
60 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
61 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
62 "REBOOT_RETURN_CODE" => 255,
63 "STOP_AFTER_SUCCESS" => 10,
64 "STOP_AFTER_FAILURE" => 60,
65 "STOP_TEST_AFTER" => 600,
66 "MAX_MONITOR_WAIT" => 1800,
67 "GRUB_REBOOT" => "grub2-reboot",
68 "GRUB_BLS_GET" => "grubby --info=ALL",
69 "SYSLINUX" => "extlinux",
70 "SYSLINUX_PATH" => "/boot/extlinux",
71 "CONNECT_TIMEOUT" => 25,
72
73# required, and we will ask users if they don't have them but we keep the default
74# value something that is common.
75 "REBOOT_TYPE" => "grub",
76 "LOCALVERSION" => "-test",
77 "SSH_USER" => "root",
78 "BUILD_TARGET" => "arch/x86/boot/bzImage",
79 "TARGET_IMAGE" => "/boot/vmlinuz-test",
80
81 "LOG_FILE" => undef,
82 "IGNORE_UNUSED" => 0,
83);
84
85my $test_log_start = 0;
86
87my $ktest_config = "ktest.conf";
88my $version;
89my $have_version = 0;
90my $machine;
91my $last_machine;
92my $ssh_user;
93my $tmpdir;
94my $builddir;
95my $outputdir;
96my $output_config;
97my $test_type;
98my $build_type;
99my $build_options;
100my $final_post_ktest;
101my $pre_ktest;
102my $post_ktest;
103my $pre_test;
104my $pre_test_die;
105my $post_test;
106my $pre_build;
107my $post_build;
108my $pre_build_die;
109my $post_build_die;
110my $reboot_type;
111my $reboot_script;
112my $power_cycle;
113my $reboot;
114my $reboot_return_code;
115my $reboot_on_error;
116my $switch_to_good;
117my $switch_to_test;
118my $poweroff_on_error;
119my $reboot_on_success;
120my $die_on_failure;
121my $powercycle_after_reboot;
122my $poweroff_after_halt;
123my $max_monitor_wait;
124my $ssh_exec;
125my $scp_to_target;
126my $scp_to_target_install;
127my $power_off;
128my $grub_menu;
129my $last_grub_menu;
130my $grub_file;
131my $grub_number;
132my $grub_reboot;
133my $grub_bls_get;
134my $syslinux;
135my $syslinux_path;
136my $syslinux_label;
137my $target;
138my $make;
139my $pre_install;
140my $post_install;
141my $no_install;
142my $noclean;
143my $minconfig;
144my $start_minconfig;
145my $start_minconfig_defined;
146my $output_minconfig;
147my $minconfig_type;
148my $use_output_minconfig;
149my $warnings_file;
150my $ignore_config;
151my $ignore_errors;
152my $addconfig;
153my $in_bisect = 0;
154my $bisect_bad_commit = "";
155my $reverse_bisect;
156my $bisect_manual;
157my $bisect_skip;
158my $bisect_tries;
159my $config_bisect_good;
160my $bisect_ret_good;
161my $bisect_ret_bad;
162my $bisect_ret_skip;
163my $bisect_ret_abort;
164my $bisect_ret_default;
165my $in_patchcheck = 0;
166my $run_test;
167my $buildlog;
168my $testlog;
169my $dmesg;
170my $monitor_fp;
171my $monitor_pid;
172my $monitor_cnt = 0;
173my $sleep_time;
174my $bisect_sleep_time;
175my $patchcheck_sleep_time;
176my $ignore_warnings;
177my $store_failures;
178my $store_successes;
179my $test_name;
180my $timeout;
181my $connect_timeout;
182my $config_bisect_exec;
183my $booted_timeout;
184my $detect_triplefault;
185my $console;
186my $close_console_signal;
187my $reboot_success_line;
188my $success_line;
189my $stop_after_success;
190my $stop_after_failure;
191my $stop_test_after;
192my $build_target;
193my $target_image;
194my $checkout;
195my $localversion;
196my $iteration = 0;
197my $successes = 0;
198my $stty_orig;
199my $run_command_status = 0;
200
201my $bisect_good;
202my $bisect_bad;
203my $bisect_type;
204my $bisect_start;
205my $bisect_replay;
206my $bisect_files;
207my $bisect_reverse;
208my $bisect_check;
209
210my $config_bisect;
211my $config_bisect_type;
212my $config_bisect_check;
213
214my $patchcheck_type;
215my $patchcheck_start;
216my $patchcheck_cherry;
217my $patchcheck_end;
218
219my $build_time;
220my $install_time;
221my $reboot_time;
222my $test_time;
223
224my $pwd;
225my $dirname = $FindBin::Bin;
226
227my $mailto;
228my $mailer;
229my $mail_path;
230my $mail_max_size;
231my $mail_command;
232my $email_on_error;
233my $email_when_finished;
234my $email_when_started;
235my $email_when_canceled;
236
237my $script_start_time = localtime();
238
239# set when a test is something other that just building or install
240# which would require more options.
241my $buildonly = 1;
242
243# tell build not to worry about warnings, even when WARNINGS_FILE is set
244my $warnings_ok = 0;
245
246# set when creating a new config
247my $newconfig = 0;
248
249my %entered_configs;
250my %config_help;
251my %variable;
252
253# force_config is the list of configs that we force enabled (or disabled)
254# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
255my %force_config;
256
257# do not force reboots on config problems
258my $no_reboot = 1;
259
260# reboot on success
261my $reboot_success = 0;
262
263my %option_map = (
264 "MAILTO" => \$mailto,
265 "MAILER" => \$mailer,
266 "MAIL_PATH" => \$mail_path,
267 "MAIL_MAX_SIZE" => \$mail_max_size,
268 "MAIL_COMMAND" => \$mail_command,
269 "EMAIL_ON_ERROR" => \$email_on_error,
270 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
271 "EMAIL_WHEN_STARTED" => \$email_when_started,
272 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
273 "MACHINE" => \$machine,
274 "SSH_USER" => \$ssh_user,
275 "TMP_DIR" => \$tmpdir,
276 "OUTPUT_DIR" => \$outputdir,
277 "BUILD_DIR" => \$builddir,
278 "TEST_TYPE" => \$test_type,
279 "PRE_KTEST" => \$pre_ktest,
280 "POST_KTEST" => \$post_ktest,
281 "PRE_TEST" => \$pre_test,
282 "PRE_TEST_DIE" => \$pre_test_die,
283 "POST_TEST" => \$post_test,
284 "BUILD_TYPE" => \$build_type,
285 "BUILD_OPTIONS" => \$build_options,
286 "PRE_BUILD" => \$pre_build,
287 "POST_BUILD" => \$post_build,
288 "PRE_BUILD_DIE" => \$pre_build_die,
289 "POST_BUILD_DIE" => \$post_build_die,
290 "POWER_CYCLE" => \$power_cycle,
291 "REBOOT" => \$reboot,
292 "REBOOT_RETURN_CODE" => \$reboot_return_code,
293 "BUILD_NOCLEAN" => \$noclean,
294 "MIN_CONFIG" => \$minconfig,
295 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
296 "START_MIN_CONFIG" => \$start_minconfig,
297 "MIN_CONFIG_TYPE" => \$minconfig_type,
298 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
299 "WARNINGS_FILE" => \$warnings_file,
300 "IGNORE_CONFIG" => \$ignore_config,
301 "TEST" => \$run_test,
302 "ADD_CONFIG" => \$addconfig,
303 "REBOOT_TYPE" => \$reboot_type,
304 "GRUB_MENU" => \$grub_menu,
305 "GRUB_FILE" => \$grub_file,
306 "GRUB_REBOOT" => \$grub_reboot,
307 "GRUB_BLS_GET" => \$grub_bls_get,
308 "SYSLINUX" => \$syslinux,
309 "SYSLINUX_PATH" => \$syslinux_path,
310 "SYSLINUX_LABEL" => \$syslinux_label,
311 "PRE_INSTALL" => \$pre_install,
312 "POST_INSTALL" => \$post_install,
313 "NO_INSTALL" => \$no_install,
314 "REBOOT_SCRIPT" => \$reboot_script,
315 "REBOOT_ON_ERROR" => \$reboot_on_error,
316 "SWITCH_TO_GOOD" => \$switch_to_good,
317 "SWITCH_TO_TEST" => \$switch_to_test,
318 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
319 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
320 "DIE_ON_FAILURE" => \$die_on_failure,
321 "POWER_OFF" => \$power_off,
322 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
323 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
324 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
325 "SLEEP_TIME" => \$sleep_time,
326 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
327 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
328 "IGNORE_WARNINGS" => \$ignore_warnings,
329 "IGNORE_ERRORS" => \$ignore_errors,
330 "BISECT_MANUAL" => \$bisect_manual,
331 "BISECT_SKIP" => \$bisect_skip,
332 "BISECT_TRIES" => \$bisect_tries,
333 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
334 "BISECT_RET_GOOD" => \$bisect_ret_good,
335 "BISECT_RET_BAD" => \$bisect_ret_bad,
336 "BISECT_RET_SKIP" => \$bisect_ret_skip,
337 "BISECT_RET_ABORT" => \$bisect_ret_abort,
338 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
339 "STORE_FAILURES" => \$store_failures,
340 "STORE_SUCCESSES" => \$store_successes,
341 "TEST_NAME" => \$test_name,
342 "TIMEOUT" => \$timeout,
343 "CONNECT_TIMEOUT" => \$connect_timeout,
344 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
345 "BOOTED_TIMEOUT" => \$booted_timeout,
346 "CONSOLE" => \$console,
347 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
348 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
349 "SUCCESS_LINE" => \$success_line,
350 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
351 "STOP_AFTER_SUCCESS" => \$stop_after_success,
352 "STOP_AFTER_FAILURE" => \$stop_after_failure,
353 "STOP_TEST_AFTER" => \$stop_test_after,
354 "BUILD_TARGET" => \$build_target,
355 "SSH_EXEC" => \$ssh_exec,
356 "SCP_TO_TARGET" => \$scp_to_target,
357 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
358 "CHECKOUT" => \$checkout,
359 "TARGET_IMAGE" => \$target_image,
360 "LOCALVERSION" => \$localversion,
361
362 "BISECT_GOOD" => \$bisect_good,
363 "BISECT_BAD" => \$bisect_bad,
364 "BISECT_TYPE" => \$bisect_type,
365 "BISECT_START" => \$bisect_start,
366 "BISECT_REPLAY" => \$bisect_replay,
367 "BISECT_FILES" => \$bisect_files,
368 "BISECT_REVERSE" => \$bisect_reverse,
369 "BISECT_CHECK" => \$bisect_check,
370
371 "CONFIG_BISECT" => \$config_bisect,
372 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
373 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
374
375 "PATCHCHECK_TYPE" => \$patchcheck_type,
376 "PATCHCHECK_START" => \$patchcheck_start,
377 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
378 "PATCHCHECK_END" => \$patchcheck_end,
379);
380
381# Options may be used by other options, record them.
382my %used_options;
383
384# default variables that can be used
385chomp ($variable{"PWD"} = `pwd`);
386$pwd = $variable{"PWD"};
387
388$config_help{"MACHINE"} = << "EOF"
389 The machine hostname that you will test.
390 For build only tests, it is still needed to differentiate log files.
391EOF
392 ;
393$config_help{"SSH_USER"} = << "EOF"
394 The box is expected to have ssh on normal bootup, provide the user
395 (most likely root, since you need privileged operations)
396EOF
397 ;
398$config_help{"BUILD_DIR"} = << "EOF"
399 The directory that contains the Linux source code (full path).
400 You can use \${PWD} that will be the path where ktest.pl is run, or use
401 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
402EOF
403 ;
404$config_help{"OUTPUT_DIR"} = << "EOF"
405 The directory that the objects will be built (full path).
406 (can not be same as BUILD_DIR)
407 You can use \${PWD} that will be the path where ktest.pl is run, or use
408 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
409EOF
410 ;
411$config_help{"BUILD_TARGET"} = << "EOF"
412 The location of the compiled file to copy to the target.
413 (relative to OUTPUT_DIR)
414EOF
415 ;
416$config_help{"BUILD_OPTIONS"} = << "EOF"
417 Options to add to \"make\" when building.
418 i.e. -j20
419EOF
420 ;
421$config_help{"TARGET_IMAGE"} = << "EOF"
422 The place to put your image on the test machine.
423EOF
424 ;
425$config_help{"POWER_CYCLE"} = << "EOF"
426 A script or command to reboot the box.
427
428 Here is a digital loggers power switch example
429 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
430
431 Here is an example to reboot a virtual box on the current host
432 with the name "Guest".
433 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
434EOF
435 ;
436$config_help{"CONSOLE"} = << "EOF"
437 The script or command that reads the console
438
439 If you use ttywatch server, something like the following would work.
440CONSOLE = nc -d localhost 3001
441
442 For a virtual machine with guest name "Guest".
443CONSOLE = virsh console Guest
444EOF
445 ;
446$config_help{"LOCALVERSION"} = << "EOF"
447 Required version ending to differentiate the test
448 from other linux builds on the system.
449EOF
450 ;
451$config_help{"REBOOT_TYPE"} = << "EOF"
452 Way to reboot the box to the test kernel.
453 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
454
455 If you specify grub, it will assume grub version 1
456 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
457 and select that target to reboot to the kernel. If this is not
458 your setup, then specify "script" and have a command or script
459 specified in REBOOT_SCRIPT to boot to the target.
460
461 The entry in /boot/grub/menu.lst must be entered in manually.
462 The test will not modify that file.
463
464 If you specify grub2, then you also need to specify both \$GRUB_MENU
465 and \$GRUB_FILE.
466
467 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
468
469 If you specify syslinux, then you may use SYSLINUX to define the syslinux
470 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
471 the syslinux install (defaults to /boot/extlinux). But you have to specify
472 SYSLINUX_LABEL to define the label to boot to for the test kernel.
473EOF
474 ;
475$config_help{"GRUB_MENU"} = << "EOF"
476 The grub title name for the test kernel to boot
477 (Only mandatory if REBOOT_TYPE = grub or grub2)
478
479 Note, ktest.pl will not update the grub menu.lst, you need to
480 manually add an option for the test. ktest.pl will search
481 the grub menu.lst for this option to find what kernel to
482 reboot into.
483
484 For example, if in the /boot/grub/menu.lst the test kernel title has:
485 title Test Kernel
486 kernel vmlinuz-test
487 GRUB_MENU = Test Kernel
488
489 For grub2, a search of \$GRUB_FILE is performed for the lines
490 that begin with "menuentry". It will not detect submenus. The
491 menu must be a non-nested menu. Add the quotes used in the menu
492 to guarantee your selection, as the first menuentry with the content
493 of \$GRUB_MENU that is found will be used.
494
495 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
496 command for the lines that begin with "title".
497EOF
498 ;
499$config_help{"GRUB_FILE"} = << "EOF"
500 If grub2 is used, the full path for the grub.cfg file is placed
501 here. Use something like /boot/grub2/grub.cfg to search.
502EOF
503 ;
504$config_help{"SYSLINUX_LABEL"} = << "EOF"
505 If syslinux is used, the label that boots the target kernel must
506 be specified with SYSLINUX_LABEL.
507EOF
508 ;
509$config_help{"REBOOT_SCRIPT"} = << "EOF"
510 A script to reboot the target into the test kernel
511 (Only mandatory if REBOOT_TYPE = script)
512EOF
513 ;
514
515# used with process_expression()
516my $d = 0;
517
518# defined before get_test_name()
519my $in_die = 0;
520
521# defined before process_warning_line()
522my $check_build_re = ".*:.*(warning|error|Error):.*";
523my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
524
525# defined before child_finished()
526my $child_done;
527
528# config_ignore holds the configs that were set (or unset) for
529# a good config and we will ignore these configs for the rest
530# of a config bisect. These configs stay as they were.
531my %config_ignore;
532
533# config_set holds what all configs were set as.
534my %config_set;
535
536# config_off holds the set of configs that the bad config had disabled.
537# We need to record them and set them in the .config when running
538# olddefconfig, because olddefconfig keeps the defaults.
539my %config_off;
540
541# config_off_tmp holds a set of configs to turn off for now
542my @config_off_tmp;
543
544# config_list is the set of configs that are being tested
545my %config_list;
546my %null_config;
547
548my %dependency;
549
550# found above run_config_bisect()
551my $pass = 1;
552
553# found above add_dep()
554
555my %depends;
556my %depcount;
557my $iflevel = 0;
558my @ifdeps;
559
560# prevent recursion
561my %read_kconfigs;
562
563# found above test_this_config()
564my %min_configs;
565my %keep_configs;
566my %save_configs;
567my %processed_configs;
568my %nochange_config;
569
570#
571# These are first defined here, main function later on
572#
573sub run_command;
574sub start_monitor;
575sub end_monitor;
576sub wait_for_monitor;
577
578sub _logit {
579 if (defined($opt{"LOG_FILE"})) {
580 print LOG @_;
581 }
582}
583
584sub logit {
585 if (defined($opt{"LOG_FILE"})) {
586 _logit @_;
587 } else {
588 print @_;
589 }
590}
591
592sub doprint {
593 print @_;
594 _logit @_;
595}
596
597sub read_prompt {
598 my ($cancel, $prompt) = @_;
599
600 my $ans;
601
602 for (;;) {
603 if ($cancel) {
604 print "$prompt [y/n/C] ";
605 } else {
606 print "$prompt [Y/n] ";
607 }
608 $ans = <STDIN>;
609 chomp $ans;
610 if ($ans =~ /^\s*$/) {
611 if ($cancel) {
612 $ans = "c";
613 } else {
614 $ans = "y";
615 }
616 }
617 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
618 if ($cancel) {
619 last if ($ans =~ /^c$/i);
620 print "Please answer either 'y', 'n' or 'c'.\n";
621 } else {
622 print "Please answer either 'y' or 'n'.\n";
623 }
624 }
625 if ($ans =~ /^c/i) {
626 exit;
627 }
628 if ($ans !~ /^y$/i) {
629 return 0;
630 }
631 return 1;
632}
633
634sub read_yn {
635 my ($prompt) = @_;
636
637 return read_prompt 0, $prompt;
638}
639
640sub read_ync {
641 my ($prompt) = @_;
642
643 return read_prompt 1, $prompt;
644}
645
646sub get_mandatory_config {
647 my ($config) = @_;
648 my $ans;
649
650 return if (defined($opt{$config}));
651
652 if (defined($config_help{$config})) {
653 print "\n";
654 print $config_help{$config};
655 }
656
657 for (;;) {
658 print "$config = ";
659 if (defined($default{$config}) && length($default{$config})) {
660 print "\[$default{$config}\] ";
661 }
662 $ans = <STDIN>;
663 $ans =~ s/^\s*(.*\S)\s*$/$1/;
664 if ($ans =~ /^\s*$/) {
665 if ($default{$config}) {
666 $ans = $default{$config};
667 } else {
668 print "Your answer can not be blank\n";
669 next;
670 }
671 }
672 $entered_configs{$config} = ${ans};
673 last;
674 }
675}
676
677sub show_time {
678 my ($time) = @_;
679
680 my $hours = 0;
681 my $minutes = 0;
682
683 if ($time > 3600) {
684 $hours = int($time / 3600);
685 $time -= $hours * 3600;
686 }
687 if ($time > 60) {
688 $minutes = int($time / 60);
689 $time -= $minutes * 60;
690 }
691
692 if ($hours > 0) {
693 doprint "$hours hour";
694 doprint "s" if ($hours > 1);
695 doprint " ";
696 }
697
698 if ($minutes > 0) {
699 doprint "$minutes minute";
700 doprint "s" if ($minutes > 1);
701 doprint " ";
702 }
703
704 doprint "$time second";
705 doprint "s" if ($time != 1);
706}
707
708sub print_times {
709 doprint "\n";
710 if ($build_time) {
711 doprint "Build time: ";
712 show_time($build_time);
713 doprint "\n";
714 }
715 if ($install_time) {
716 doprint "Install time: ";
717 show_time($install_time);
718 doprint "\n";
719 }
720 if ($reboot_time) {
721 doprint "Reboot time: ";
722 show_time($reboot_time);
723 doprint "\n";
724 }
725 if ($test_time) {
726 doprint "Test time: ";
727 show_time($test_time);
728 doprint "\n";
729 }
730 # reset for iterations like bisect
731 $build_time = 0;
732 $install_time = 0;
733 $reboot_time = 0;
734 $test_time = 0;
735}
736
737sub get_mandatory_configs {
738 get_mandatory_config("MACHINE");
739 get_mandatory_config("BUILD_DIR");
740 get_mandatory_config("OUTPUT_DIR");
741
742 if ($newconfig) {
743 get_mandatory_config("BUILD_OPTIONS");
744 }
745
746 # options required for other than just building a kernel
747 if (!$buildonly) {
748 get_mandatory_config("POWER_CYCLE");
749 get_mandatory_config("CONSOLE");
750 }
751
752 # options required for install and more
753 if ($buildonly != 1) {
754 get_mandatory_config("SSH_USER");
755 get_mandatory_config("BUILD_TARGET");
756 get_mandatory_config("TARGET_IMAGE");
757 }
758
759 get_mandatory_config("LOCALVERSION");
760
761 return if ($buildonly);
762
763 my $rtype = $opt{"REBOOT_TYPE"};
764
765 if (!defined($rtype)) {
766 if (!defined($opt{"GRUB_MENU"})) {
767 get_mandatory_config("REBOOT_TYPE");
768 $rtype = $entered_configs{"REBOOT_TYPE"};
769 } else {
770 $rtype = "grub";
771 }
772 }
773
774 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
775 get_mandatory_config("GRUB_MENU");
776 }
777
778 if ($rtype eq "grub2") {
779 get_mandatory_config("GRUB_MENU");
780 get_mandatory_config("GRUB_FILE");
781 }
782
783 if ($rtype eq "syslinux") {
784 get_mandatory_config("SYSLINUX_LABEL");
785 }
786}
787
788sub process_variables {
789 my ($value, $remove_undef) = @_;
790 my $retval = "";
791
792 # We want to check for '\', and it is just easier
793 # to check the previous characet of '$' and not need
794 # to worry if '$' is the first character. By adding
795 # a space to $value, we can just check [^\\]\$ and
796 # it will still work.
797 $value = " $value";
798
799 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
800 my $begin = $1;
801 my $var = $2;
802 my $end = $3;
803 # append beginning of value to retval
804 $retval = "$retval$begin";
805 if ($var =~ s/^shell\s+//) {
806 $retval = `$var`;
807 if ($?) {
808 doprint "WARNING: $var returned an error\n";
809 } else {
810 chomp $retval;
811 }
812 } elsif (defined($variable{$var})) {
813 $retval = "$retval$variable{$var}";
814 } elsif (defined($remove_undef) && $remove_undef) {
815 # for if statements, any variable that is not defined,
816 # we simple convert to 0
817 $retval = "${retval}0";
818 } else {
819 # put back the origin piece.
820 $retval = "$retval\$\{$var\}";
821 # This could be an option that is used later, save
822 # it so we don't warn if this option is not one of
823 # ktests options.
824 $used_options{$var} = 1;
825 }
826 $value = $end;
827 }
828 $retval = "$retval$value";
829
830 # remove the space added in the beginning
831 $retval =~ s/ //;
832
833 return "$retval";
834}
835
836sub set_value {
837 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
838
839 my $prvalue = process_variables($rvalue);
840
841 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
842 $prvalue !~ /^(config_|)bisect$/ &&
843 $prvalue !~ /^build$/ &&
844 $buildonly) {
845
846 # Note if a test is something other than build, then we
847 # will need other mandatory options.
848 if ($prvalue ne "install") {
849 $buildonly = 0;
850 } else {
851 # install still limits some mandatory options.
852 $buildonly = 2;
853 }
854 }
855
856 if (defined($opt{$lvalue})) {
857 if (!$override || defined(${$overrides}{$lvalue})) {
858 my $extra = "";
859 if ($override) {
860 $extra = "In the same override section!\n";
861 }
862 die "$name: $.: Option $lvalue defined more than once!\n$extra";
863 }
864 ${$overrides}{$lvalue} = $prvalue;
865 }
866
867 $opt{$lvalue} = $prvalue;
868}
869
870sub set_eval {
871 my ($lvalue, $rvalue, $name) = @_;
872
873 my $prvalue = process_variables($rvalue);
874 my $arr;
875
876 if (defined($evals{$lvalue})) {
877 $arr = $evals{$lvalue};
878 } else {
879 $arr = [];
880 $evals{$lvalue} = $arr;
881 }
882
883 push @{$arr}, $rvalue;
884}
885
886sub set_variable {
887 my ($lvalue, $rvalue) = @_;
888
889 if ($rvalue =~ /^\s*$/) {
890 delete $variable{$lvalue};
891 } else {
892 $rvalue = process_variables($rvalue);
893 $variable{$lvalue} = $rvalue;
894 }
895}
896
897sub process_compare {
898 my ($lval, $cmp, $rval) = @_;
899
900 # remove whitespace
901
902 $lval =~ s/^\s*//;
903 $lval =~ s/\s*$//;
904
905 $rval =~ s/^\s*//;
906 $rval =~ s/\s*$//;
907
908 if ($cmp eq "==") {
909 return $lval eq $rval;
910 } elsif ($cmp eq "!=") {
911 return $lval ne $rval;
912 } elsif ($cmp eq "=~") {
913 return $lval =~ m/$rval/;
914 } elsif ($cmp eq "!~") {
915 return $lval !~ m/$rval/;
916 }
917
918 my $statement = "$lval $cmp $rval";
919 my $ret = eval $statement;
920
921 # $@ stores error of eval
922 if ($@) {
923 return -1;
924 }
925
926 return $ret;
927}
928
929sub value_defined {
930 my ($val) = @_;
931
932 return defined($variable{$2}) ||
933 defined($opt{$2});
934}
935
936sub process_expression {
937 my ($name, $val) = @_;
938
939 my $c = $d++;
940
941 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
942 my $express = $1;
943
944 if (process_expression($name, $express)) {
945 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
946 } else {
947 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
948 }
949 }
950
951 $d--;
952 my $OR = "\\|\\|";
953 my $AND = "\\&\\&";
954
955 while ($val =~ s/^(.*?)($OR|$AND)//) {
956 my $express = $1;
957 my $op = $2;
958
959 if (process_expression($name, $express)) {
960 if ($op eq "||") {
961 return 1;
962 }
963 } else {
964 if ($op eq "&&") {
965 return 0;
966 }
967 }
968 }
969
970 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
971 my $ret = process_compare($1, $2, $3);
972 if ($ret < 0) {
973 die "$name: $.: Unable to process comparison\n";
974 }
975 return $ret;
976 }
977
978 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
979 if (defined $1) {
980 return !value_defined($2);
981 } else {
982 return value_defined($2);
983 }
984 }
985
986 if ($val =~ s/^\s*NOT\s+(.*)//) {
987 my $express = $1;
988 my $ret = process_expression($name, $express);
989 return !$ret;
990 }
991
992 if ($val =~ /^\s*0\s*$/) {
993 return 0;
994 } elsif ($val =~ /^\s*\d+\s*$/) {
995 return 1;
996 }
997
998 die ("$name: $.: Undefined content $val in if statement\n");
999}
1000
1001sub process_if {
1002 my ($name, $value) = @_;
1003
1004 # Convert variables and replace undefined ones with 0
1005 my $val = process_variables($value, 1);
1006 my $ret = process_expression $name, $val;
1007
1008 return $ret;
1009}
1010
1011sub __read_config {
1012 my ($config, $current_test_num) = @_;
1013
1014 my $in;
1015 open($in, $config) || die "can't read file $config";
1016
1017 my $name = $config;
1018 $name =~ s,.*/(.*),$1,;
1019
1020 my $test_num = $$current_test_num;
1021 my $default = 1;
1022 my $repeat = 1;
1023 my $num_tests_set = 0;
1024 my $skip = 0;
1025 my $rest;
1026 my $line;
1027 my $test_case = 0;
1028 my $if = 0;
1029 my $if_set = 0;
1030 my $override = 0;
1031
1032 my %overrides;
1033
1034 while (<$in>) {
1035
1036 # ignore blank lines and comments
1037 next if (/^\s*$/ || /\s*\#/);
1038
1039 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1040
1041 my $type = $1;
1042 $rest = $2;
1043 $line = $2;
1044
1045 my $old_test_num;
1046 my $old_repeat;
1047 $override = 0;
1048
1049 if ($type eq "TEST_START") {
1050 if ($num_tests_set) {
1051 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1052 }
1053
1054 $old_test_num = $test_num;
1055 $old_repeat = $repeat;
1056
1057 $test_num += $repeat;
1058 $default = 0;
1059 $repeat = 1;
1060 } else {
1061 $default = 1;
1062 }
1063
1064 # If SKIP is anywhere in the line, the command will be skipped
1065 if ($rest =~ s/\s+SKIP\b//) {
1066 $skip = 1;
1067 } else {
1068 $test_case = 1;
1069 $skip = 0;
1070 }
1071
1072 if ($rest =~ s/\sELSE\b//) {
1073 if (!$if) {
1074 die "$name: $.: ELSE found with out matching IF section\n$_";
1075 }
1076 $if = 0;
1077
1078 if ($if_set) {
1079 $skip = 1;
1080 } else {
1081 $skip = 0;
1082 }
1083 }
1084
1085 if ($rest =~ s/\sIF\s+(.*)//) {
1086 if (process_if($name, $1)) {
1087 $if_set = 1;
1088 } else {
1089 $skip = 1;
1090 }
1091 $if = 1;
1092 } else {
1093 $if = 0;
1094 $if_set = 0;
1095 }
1096
1097 if (!$skip) {
1098 if ($type eq "TEST_START") {
1099 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1100 $repeat = $1;
1101 $repeat_tests{"$test_num"} = $repeat;
1102 }
1103 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1104 # DEFAULT only
1105 $override = 1;
1106 # Clear previous overrides
1107 %overrides = ();
1108 }
1109 }
1110
1111 if (!$skip && $rest !~ /^\s*$/) {
1112 die "$name: $.: Garbage found after $type\n$_";
1113 }
1114
1115 if ($skip && $type eq "TEST_START") {
1116 $test_num = $old_test_num;
1117 $repeat = $old_repeat;
1118 }
1119 } elsif (/^\s*ELSE\b(.*)$/) {
1120 if (!$if) {
1121 die "$name: $.: ELSE found with out matching IF section\n$_";
1122 }
1123 $rest = $1;
1124 if ($if_set) {
1125 $skip = 1;
1126 $rest = "";
1127 } else {
1128 $skip = 0;
1129
1130 if ($rest =~ /\sIF\s+(.*)/) {
1131 # May be a ELSE IF section.
1132 if (process_if($name, $1)) {
1133 $if_set = 1;
1134 } else {
1135 $skip = 1;
1136 }
1137 $rest = "";
1138 } else {
1139 $if = 0;
1140 }
1141 }
1142
1143 if ($rest !~ /^\s*$/) {
1144 die "$name: $.: Garbage found after DEFAULTS\n$_";
1145 }
1146
1147 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1148
1149 next if ($skip);
1150
1151 if (!$default) {
1152 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1153 }
1154
1155 my $file = process_variables($1);
1156
1157 if ($file !~ m,^/,) {
1158 # check the path of the config file first
1159 if ($config =~ m,(.*)/,) {
1160 if (-f "$1/$file") {
1161 $file = "$1/$file";
1162 }
1163 }
1164 }
1165
1166 if ( ! -r $file ) {
1167 die "$name: $.: Can't read file $file\n$_";
1168 }
1169
1170 if (__read_config($file, \$test_num)) {
1171 $test_case = 1;
1172 }
1173
1174 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1175
1176 next if ($skip);
1177
1178 my $lvalue = $1;
1179 my $rvalue = $2;
1180
1181 if ($default || $lvalue =~ /\[\d+\]$/) {
1182 set_eval($lvalue, $rvalue, $name);
1183 } else {
1184 my $val = "$lvalue\[$test_num\]";
1185 set_eval($val, $rvalue, $name);
1186 }
1187
1188 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1189
1190 next if ($skip);
1191
1192 my $lvalue = $1;
1193 my $rvalue = $2;
1194
1195 if (!$default &&
1196 ($lvalue eq "NUM_TESTS" ||
1197 $lvalue eq "LOG_FILE" ||
1198 $lvalue eq "CLEAR_LOG")) {
1199 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1200 }
1201
1202 if ($lvalue eq "NUM_TESTS") {
1203 if ($test_num) {
1204 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1205 }
1206 if (!$default) {
1207 die "$name: $.: NUM_TESTS must be set in default section\n";
1208 }
1209 $num_tests_set = 1;
1210 }
1211
1212 if ($default || $lvalue =~ /\[\d+\]$/) {
1213 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1214 } else {
1215 my $val = "$lvalue\[$test_num\]";
1216 set_value($val, $rvalue, $override, \%overrides, $name);
1217
1218 if ($repeat > 1) {
1219 $repeats{$val} = $repeat;
1220 }
1221 }
1222 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1223 next if ($skip);
1224
1225 my $lvalue = $1;
1226 my $rvalue = $2;
1227
1228 # process config variables.
1229 # Config variables are only active while reading the
1230 # config and can be defined anywhere. They also ignore
1231 # TEST_START and DEFAULTS, but are skipped if they are in
1232 # on of these sections that have SKIP defined.
1233 # The save variable can be
1234 # defined multiple times and the new one simply overrides
1235 # the previous one.
1236 set_variable($lvalue, $rvalue);
1237
1238 } else {
1239 die "$name: $.: Garbage found in config\n$_";
1240 }
1241 }
1242
1243 if ($test_num) {
1244 $test_num += $repeat - 1;
1245 $opt{"NUM_TESTS"} = $test_num;
1246 }
1247
1248 close($in);
1249
1250 $$current_test_num = $test_num;
1251
1252 return $test_case;
1253}
1254
1255sub get_test_case {
1256 print "What test case would you like to run?\n";
1257 print " (build, install or boot)\n";
1258 print " Other tests are available but require editing ktest.conf\n";
1259 print " (see tools/testing/ktest/sample.conf)\n";
1260 my $ans = <STDIN>;
1261 chomp $ans;
1262 $default{"TEST_TYPE"} = $ans;
1263}
1264
1265sub read_config {
1266 my ($config) = @_;
1267
1268 my $test_case;
1269 my $test_num = 0;
1270
1271 $test_case = __read_config $config, \$test_num;
1272
1273 # make sure we have all mandatory configs
1274 get_mandatory_configs;
1275
1276 # was a test specified?
1277 if (!$test_case) {
1278 print "No test case specified.\n";
1279 get_test_case;
1280 }
1281
1282 # set any defaults
1283
1284 foreach my $default (keys %default) {
1285 if (!defined($opt{$default})) {
1286 $opt{$default} = $default{$default};
1287 }
1288 }
1289
1290 if ($opt{"IGNORE_UNUSED"} == 1) {
1291 return;
1292 }
1293
1294 my %not_used;
1295
1296 # check if there are any stragglers (typos?)
1297 foreach my $option (keys %opt) {
1298 my $op = $option;
1299 # remove per test labels.
1300 $op =~ s/\[.*\]//;
1301 if (!exists($option_map{$op}) &&
1302 !exists($default{$op}) &&
1303 !exists($used_options{$op})) {
1304 $not_used{$op} = 1;
1305 }
1306 }
1307
1308 if (%not_used) {
1309 my $s = "s are";
1310 $s = " is" if (keys %not_used == 1);
1311 print "The following option$s not used; could be a typo:\n";
1312 foreach my $option (keys %not_used) {
1313 print "$option\n";
1314 }
1315 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1316 if (!read_yn "Do you want to continue?") {
1317 exit -1;
1318 }
1319 }
1320}
1321
1322sub __eval_option {
1323 my ($name, $option, $i) = @_;
1324
1325 # Add space to evaluate the character before $
1326 $option = " $option";
1327 my $retval = "";
1328 my $repeated = 0;
1329 my $parent = 0;
1330
1331 foreach my $test (keys %repeat_tests) {
1332 if ($i >= $test &&
1333 $i < $test + $repeat_tests{$test}) {
1334
1335 $repeated = 1;
1336 $parent = $test;
1337 last;
1338 }
1339 }
1340
1341 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1342 my $start = $1;
1343 my $var = $2;
1344 my $end = $3;
1345
1346 # Append beginning of line
1347 $retval = "$retval$start";
1348
1349 # If the iteration option OPT[$i] exists, then use that.
1350 # otherwise see if the default OPT (without [$i]) exists.
1351
1352 my $o = "$var\[$i\]";
1353 my $parento = "$var\[$parent\]";
1354
1355 # If a variable contains itself, use the default var
1356 if (($var eq $name) && defined($opt{$var})) {
1357 $o = $opt{$var};
1358 $retval = "$retval$o";
1359 } elsif (defined($opt{$o})) {
1360 $o = $opt{$o};
1361 $retval = "$retval$o";
1362 } elsif ($repeated && defined($opt{$parento})) {
1363 $o = $opt{$parento};
1364 $retval = "$retval$o";
1365 } elsif (defined($opt{$var})) {
1366 $o = $opt{$var};
1367 $retval = "$retval$o";
1368 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1369 # special option KERNEL_VERSION uses kernel version
1370 get_version();
1371 $retval = "$retval$version";
1372 } else {
1373 $retval = "$retval\$\{$var\}";
1374 }
1375
1376 $option = $end;
1377 }
1378
1379 $retval = "$retval$option";
1380
1381 $retval =~ s/^ //;
1382
1383 return $retval;
1384}
1385
1386sub process_evals {
1387 my ($name, $option, $i) = @_;
1388
1389 my $option_name = "$name\[$i\]";
1390 my $ev;
1391
1392 my $old_option = $option;
1393
1394 if (defined($evals{$option_name})) {
1395 $ev = $evals{$option_name};
1396 } elsif (defined($evals{$name})) {
1397 $ev = $evals{$name};
1398 } else {
1399 return $option;
1400 }
1401
1402 for my $e (@{$ev}) {
1403 eval "\$option =~ $e";
1404 }
1405
1406 if ($option ne $old_option) {
1407 doprint("$name changed from '$old_option' to '$option'\n");
1408 }
1409
1410 return $option;
1411}
1412
1413sub eval_option {
1414 my ($name, $option, $i) = @_;
1415
1416 my $prev = "";
1417
1418 # Since an option can evaluate to another option,
1419 # keep iterating until we do not evaluate any more
1420 # options.
1421 my $r = 0;
1422 while ($prev ne $option) {
1423 # Check for recursive evaluations.
1424 # 100 deep should be more than enough.
1425 if ($r++ > 100) {
1426 die "Over 100 evaluations occurred with $option\n" .
1427 "Check for recursive variables\n";
1428 }
1429 $prev = $option;
1430 $option = __eval_option($name, $option, $i);
1431 }
1432
1433 $option = process_evals($name, $option, $i);
1434
1435 return $option;
1436}
1437
1438sub reboot {
1439 my ($time) = @_;
1440 my $powercycle = 0;
1441
1442 # test if the machine can be connected to within a few seconds
1443 my $stat = run_ssh("echo check machine status", $connect_timeout);
1444 if (!$stat) {
1445 doprint("power cycle\n");
1446 $powercycle = 1;
1447 }
1448
1449 if ($powercycle) {
1450 run_command "$power_cycle";
1451
1452 start_monitor;
1453 # flush out current monitor
1454 # May contain the reboot success line
1455 wait_for_monitor 1;
1456
1457 } else {
1458 # Make sure everything has been written to disk
1459 run_ssh("sync", 10);
1460
1461 if (defined($time)) {
1462 start_monitor;
1463 # flush out current monitor
1464 # May contain the reboot success line
1465 wait_for_monitor 1;
1466 }
1467
1468 # try to reboot normally
1469 if (run_command $reboot) {
1470 if (defined($powercycle_after_reboot)) {
1471 sleep $powercycle_after_reboot;
1472 run_command "$power_cycle";
1473 }
1474 } else {
1475 # nope? power cycle it.
1476 run_command "$power_cycle";
1477 }
1478 }
1479
1480 if (defined($time)) {
1481
1482 # We only want to get to the new kernel, don't fail
1483 # if we stumble over a call trace.
1484 my $save_ignore_errors = $ignore_errors;
1485 $ignore_errors = 1;
1486
1487 # Look for the good kernel to boot
1488 if (wait_for_monitor($time, "Linux version")) {
1489 # reboot got stuck?
1490 doprint "Reboot did not finish. Forcing power cycle\n";
1491 run_command "$power_cycle";
1492 }
1493
1494 $ignore_errors = $save_ignore_errors;
1495
1496 # Still need to wait for the reboot to finish
1497 wait_for_monitor($time, $reboot_success_line);
1498
1499 end_monitor;
1500 }
1501}
1502
1503sub reboot_to_good {
1504 my ($time) = @_;
1505
1506 if (defined($switch_to_good)) {
1507 run_command $switch_to_good;
1508 }
1509
1510 reboot $time;
1511}
1512
1513sub do_not_reboot {
1514 my $i = $iteration;
1515
1516 return $test_type eq "build" || $no_reboot ||
1517 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1518 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1519 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1520}
1521
1522sub get_test_name() {
1523 my $name;
1524
1525 if (defined($test_name)) {
1526 $name = "$test_name:$test_type";
1527 } else {
1528 $name = $test_type;
1529 }
1530 return $name;
1531}
1532
1533sub dodie {
1534 # avoid recursion
1535 return if ($in_die);
1536 $in_die = 1;
1537
1538 my $i = $iteration;
1539
1540 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1541
1542 if ($reboot_on_error && !do_not_reboot) {
1543 doprint "REBOOTING\n";
1544 reboot_to_good;
1545 } elsif ($poweroff_on_error && defined($power_off)) {
1546 doprint "POWERING OFF\n";
1547 `$power_off`;
1548 }
1549
1550 if (defined($opt{"LOG_FILE"})) {
1551 print " See $opt{LOG_FILE} for more info.\n";
1552 }
1553
1554 if ($email_on_error) {
1555 my $name = get_test_name;
1556 my $log_file;
1557
1558 if (defined($opt{"LOG_FILE"})) {
1559 my $whence = 2; # End of file
1560 my $log_size = tell LOG;
1561 my $size = $log_size - $test_log_start;
1562
1563 if (defined($mail_max_size)) {
1564 if ($size > $mail_max_size) {
1565 $size = $mail_max_size;
1566 }
1567 }
1568 my $pos = - $size;
1569 $log_file = "$tmpdir/log";
1570 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1571 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1572 seek(L, $pos, $whence);
1573 while (<L>) {
1574 print O;
1575 }
1576 close O;
1577 close L;
1578 }
1579
1580 send_email("KTEST: critical failure for test $i [$name]",
1581 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1582 }
1583
1584 if ($monitor_cnt) {
1585 # restore terminal settings
1586 system("stty $stty_orig");
1587 }
1588
1589 if (defined($post_test)) {
1590 run_command $post_test;
1591 }
1592
1593 die @_, "\n";
1594}
1595
1596sub create_pty {
1597 my ($ptm, $pts) = @_;
1598 my $tmp;
1599 my $TIOCSPTLCK = 0x40045431;
1600 my $TIOCGPTN = 0x80045430;
1601
1602 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1603 dodie "Can't open /dev/ptmx";
1604
1605 # unlockpt()
1606 $tmp = pack("i", 0);
1607 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1608 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1609
1610 # ptsname()
1611 ioctl($ptm, $TIOCGPTN, $tmp) or
1612 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1613 $tmp = unpack("i", $tmp);
1614
1615 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1616 dodie "Can't open /dev/pts/$tmp";
1617}
1618
1619sub exec_console {
1620 my ($ptm, $pts) = @_;
1621
1622 close($ptm);
1623
1624 close(\*STDIN);
1625 close(\*STDOUT);
1626 close(\*STDERR);
1627
1628 open(\*STDIN, '<&', $pts);
1629 open(\*STDOUT, '>&', $pts);
1630 open(\*STDERR, '>&', $pts);
1631
1632 close($pts);
1633
1634 exec $console or
1635 dodie "Can't open console $console";
1636}
1637
1638sub open_console {
1639 my ($ptm) = @_;
1640 my $pts = \*PTSFD;
1641 my $pid;
1642
1643 # save terminal settings
1644 $stty_orig = `stty -g`;
1645
1646 # place terminal in cbreak mode so that stdin can be read one character at
1647 # a time without having to wait for a newline
1648 system("stty -icanon -echo -icrnl");
1649
1650 create_pty($ptm, $pts);
1651
1652 $pid = fork;
1653
1654 if (!$pid) {
1655 # child
1656 exec_console($ptm, $pts)
1657 }
1658
1659 # parent
1660 close($pts);
1661
1662 return $pid;
1663
1664 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1665}
1666
1667sub close_console {
1668 my ($fp, $pid) = @_;
1669
1670 doprint "kill child process $pid\n";
1671 kill $close_console_signal, $pid;
1672
1673 doprint "wait for child process $pid to exit\n";
1674 waitpid($pid, 0);
1675
1676 print "closing!\n";
1677 close($fp);
1678
1679 # restore terminal settings
1680 system("stty $stty_orig");
1681}
1682
1683sub start_monitor {
1684 if ($monitor_cnt++) {
1685 return;
1686 }
1687 $monitor_fp = \*MONFD;
1688 $monitor_pid = open_console $monitor_fp;
1689
1690 return;
1691
1692 open(MONFD, "Stop perl from warning about single use of MONFD");
1693}
1694
1695sub end_monitor {
1696 return if (!defined $console);
1697 if (--$monitor_cnt) {
1698 return;
1699 }
1700 close_console($monitor_fp, $monitor_pid);
1701}
1702
1703sub wait_for_monitor {
1704 my ($time, $stop) = @_;
1705 my $full_line = "";
1706 my $line;
1707 my $booted = 0;
1708 my $start_time = time;
1709 my $skip_call_trace = 0;
1710 my $bug = 0;
1711 my $bug_ignored = 0;
1712 my $now;
1713
1714 doprint "** Wait for monitor to settle down **\n";
1715
1716 # read the monitor and wait for the system to calm down
1717 while (!$booted) {
1718 $line = wait_for_input($monitor_fp, $time);
1719 last if (!defined($line));
1720 print "$line";
1721 $full_line .= $line;
1722
1723 if (defined($stop) && $full_line =~ /$stop/) {
1724 doprint "wait for monitor detected $stop\n";
1725 $booted = 1;
1726 }
1727
1728 if ($full_line =~ /\[ backtrace testing \]/) {
1729 $skip_call_trace = 1;
1730 }
1731
1732 if ($full_line =~ /call trace:/i) {
1733 if (!$bug && !$skip_call_trace) {
1734 if ($ignore_errors) {
1735 $bug_ignored = 1;
1736 } else {
1737 $bug = 1;
1738 }
1739 }
1740 }
1741
1742 if ($full_line =~ /\[ end of backtrace testing \]/) {
1743 $skip_call_trace = 0;
1744 }
1745
1746 if ($full_line =~ /Kernel panic -/) {
1747 $bug = 1;
1748 }
1749
1750 if ($line =~ /\n/) {
1751 $full_line = "";
1752 }
1753 $now = time;
1754 if ($now - $start_time >= $max_monitor_wait) {
1755 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1756 return 1;
1757 }
1758 }
1759 print "** Monitor flushed **\n";
1760
1761 # if stop is defined but wasn't hit, return error
1762 # used by reboot (which wants to see a reboot)
1763 if (defined($stop) && !$booted) {
1764 $bug = 1;
1765 }
1766 return $bug;
1767}
1768
1769sub save_logs {
1770 my ($result, $basedir) = @_;
1771 my @t = localtime;
1772 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1773 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1774
1775 my $type = $build_type;
1776 if ($type =~ /useconfig/) {
1777 $type = "useconfig";
1778 }
1779
1780 my $dir = "$machine-$test_type-$type-$result-$date";
1781
1782 $dir = "$basedir/$dir";
1783
1784 if (!-d $dir) {
1785 mkpath($dir) or
1786 dodie "can't create $dir";
1787 }
1788
1789 my %files = (
1790 "config" => $output_config,
1791 "buildlog" => $buildlog,
1792 "dmesg" => $dmesg,
1793 "testlog" => $testlog,
1794 );
1795
1796 while (my ($name, $source) = each(%files)) {
1797 if (-f "$source") {
1798 cp "$source", "$dir/$name" or
1799 dodie "failed to copy $source";
1800 }
1801 }
1802
1803 doprint "*** Saved info to $dir ***\n";
1804}
1805
1806sub fail {
1807
1808 if ($die_on_failure) {
1809 dodie @_;
1810 }
1811
1812 doprint "FAILED\n";
1813
1814 my $i = $iteration;
1815
1816 # no need to reboot for just building.
1817 if (!do_not_reboot) {
1818 doprint "REBOOTING\n";
1819 reboot_to_good $sleep_time;
1820 }
1821
1822 my $name = "";
1823
1824 if (defined($test_name)) {
1825 $name = " ($test_name)";
1826 }
1827
1828 print_times;
1829
1830 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1831 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1832 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1833 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1834 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1835
1836 if (defined($store_failures)) {
1837 save_logs "fail", $store_failures;
1838 }
1839
1840 if (defined($post_test)) {
1841 run_command $post_test;
1842 }
1843
1844 return 1;
1845}
1846
1847sub run_command {
1848 my ($command, $redirect, $timeout) = @_;
1849 my $start_time;
1850 my $end_time;
1851 my $dolog = 0;
1852 my $dord = 0;
1853 my $dostdout = 0;
1854 my $pid;
1855 my $command_orig = $command;
1856
1857 $command =~ s/\$SSH_USER/$ssh_user/g;
1858 $command =~ s/\$MACHINE/$machine/g;
1859
1860 doprint("$command ... ");
1861 $start_time = time;
1862
1863 $pid = open(CMD, "$command 2>&1 |") or
1864 (fail "unable to exec $command" and return 0);
1865
1866 if (defined($opt{"LOG_FILE"})) {
1867 $dolog = 1;
1868 }
1869
1870 if (defined($redirect)) {
1871 if ($redirect eq 1) {
1872 $dostdout = 1;
1873 # Have the output of the command on its own line
1874 doprint "\n";
1875 } else {
1876 open (RD, ">$redirect") or
1877 dodie "failed to write to redirect $redirect";
1878 $dord = 1;
1879 }
1880 }
1881
1882 my $hit_timeout = 0;
1883
1884 while (1) {
1885 my $fp = \*CMD;
1886 if (defined($timeout)) {
1887 doprint "timeout = $timeout\n";
1888 }
1889 my $line = wait_for_input($fp, $timeout);
1890 if (!defined($line)) {
1891 my $now = time;
1892 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1893 doprint "Hit timeout of $timeout, killing process\n";
1894 $hit_timeout = 1;
1895 kill 9, $pid;
1896 }
1897 last;
1898 }
1899 print LOG $line if ($dolog);
1900 print RD $line if ($dord);
1901 print $line if ($dostdout);
1902 }
1903
1904 waitpid($pid, 0);
1905 # shift 8 for real exit status
1906 $run_command_status = $? >> 8;
1907
1908 if ($command_orig eq $default{REBOOT} &&
1909 $run_command_status == $reboot_return_code) {
1910 $run_command_status = 0;
1911 }
1912
1913 close(CMD);
1914 close(RD) if ($dord);
1915
1916 $end_time = time;
1917 my $delta = $end_time - $start_time;
1918
1919 if ($delta == 1) {
1920 doprint "[1 second] ";
1921 } else {
1922 doprint "[$delta seconds] ";
1923 }
1924
1925 if ($hit_timeout) {
1926 $run_command_status = 1;
1927 }
1928
1929 if ($run_command_status) {
1930 doprint "FAILED!\n";
1931 } else {
1932 doprint "SUCCESS\n";
1933 }
1934
1935 return !$run_command_status;
1936}
1937
1938sub run_ssh {
1939 my ($cmd, $timeout) = @_;
1940 my $cp_exec = $ssh_exec;
1941
1942 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1943 return run_command "$cp_exec", undef , $timeout;
1944}
1945
1946sub run_scp {
1947 my ($src, $dst, $cp_scp) = @_;
1948
1949 $cp_scp =~ s/\$SRC_FILE/$src/g;
1950 $cp_scp =~ s/\$DST_FILE/$dst/g;
1951
1952 return run_command "$cp_scp";
1953}
1954
1955sub run_scp_install {
1956 my ($src, $dst) = @_;
1957
1958 my $cp_scp = $scp_to_target_install;
1959
1960 return run_scp($src, $dst, $cp_scp);
1961}
1962
1963sub run_scp_mod {
1964 my ($src, $dst) = @_;
1965
1966 my $cp_scp = $scp_to_target;
1967
1968 return run_scp($src, $dst, $cp_scp);
1969}
1970
1971sub _get_grub_index {
1972
1973 my ($command, $target, $skip, $submenu) = @_;
1974
1975 return if (defined($grub_number) && defined($last_grub_menu) &&
1976 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1977 $last_machine eq $machine);
1978
1979 doprint "Find $reboot_type menu ... ";
1980 $grub_number = -1;
1981
1982 my $ssh_grub = $ssh_exec;
1983 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1984
1985 open(IN, "$ssh_grub |") or
1986 dodie "unable to execute $command";
1987
1988 my $found = 0;
1989
1990 my $submenu_number = 0;
1991
1992 while (<IN>) {
1993 if (/$target/) {
1994 $grub_number++;
1995 $found = 1;
1996 last;
1997 } elsif (defined($submenu) && /$submenu/) {
1998 $submenu_number++;
1999 $grub_number = -1;
2000 } elsif (/$skip/) {
2001 $grub_number++;
2002 }
2003 }
2004 close(IN);
2005
2006 dodie "Could not find '$grub_menu' through $command on $machine"
2007 if (!$found);
2008 if ($submenu_number > 0) {
2009 $grub_number = "$submenu_number>$grub_number";
2010 }
2011 doprint "$grub_number\n";
2012 $last_grub_menu = $grub_menu;
2013 $last_machine = $machine;
2014}
2015
2016sub get_grub_index {
2017
2018 my $command;
2019 my $target;
2020 my $skip;
2021 my $submenu;
2022 my $grub_menu_qt;
2023
2024 if ($reboot_type !~ /^grub/) {
2025 return;
2026 }
2027
2028 $grub_menu_qt = quotemeta($grub_menu);
2029
2030 if ($reboot_type eq "grub") {
2031 $command = "cat /boot/grub/menu.lst";
2032 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2033 $skip = '^\s*title\s';
2034 } elsif ($reboot_type eq "grub2") {
2035 $command = "cat $grub_file";
2036 $target = '^\s*menuentry.*' . $grub_menu_qt;
2037 $skip = '^\s*menuentry';
2038 $submenu = '^\s*submenu\s';
2039 } elsif ($reboot_type eq "grub2bls") {
2040 $command = $grub_bls_get;
2041 $target = '^title=.*' . $grub_menu_qt;
2042 $skip = '^title=';
2043 } else {
2044 return;
2045 }
2046
2047 _get_grub_index($command, $target, $skip, $submenu);
2048}
2049
2050sub wait_for_input {
2051 my ($fp, $time) = @_;
2052 my $start_time;
2053 my $rin;
2054 my $rout;
2055 my $nr;
2056 my $buf;
2057 my $line;
2058 my $ch;
2059
2060 if (!defined($time)) {
2061 $time = $timeout;
2062 }
2063
2064 $rin = '';
2065 vec($rin, fileno($fp), 1) = 1;
2066 vec($rin, fileno(\*STDIN), 1) = 1;
2067
2068 $start_time = time;
2069
2070 while (1) {
2071 $nr = select($rout=$rin, undef, undef, $time);
2072
2073 last if ($nr <= 0);
2074
2075 # copy data from stdin to the console
2076 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2077 $nr = sysread(\*STDIN, $buf, 1000);
2078 syswrite($fp, $buf, $nr) if ($nr > 0);
2079 }
2080
2081 # The timeout is based on time waiting for the fp data
2082 if (vec($rout, fileno($fp), 1) != 1) {
2083 last if (defined($time) && (time - $start_time > $time));
2084 next;
2085 }
2086
2087 $line = "";
2088
2089 # try to read one char at a time
2090 while (sysread $fp, $ch, 1) {
2091 $line .= $ch;
2092 last if ($ch eq "\n");
2093 }
2094
2095 last if (!length($line));
2096
2097 return $line;
2098 }
2099 return undef;
2100}
2101
2102sub reboot_to {
2103 if (defined($switch_to_test)) {
2104 run_command $switch_to_test;
2105 }
2106
2107 if ($reboot_type eq "grub") {
2108 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2109 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2110 run_ssh "$grub_reboot \"'$grub_number'\"";
2111 } elsif ($reboot_type eq "syslinux") {
2112 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2113 } elsif (defined $reboot_script) {
2114 run_command "$reboot_script";
2115 }
2116 reboot;
2117}
2118
2119sub get_sha1 {
2120 my ($commit) = @_;
2121
2122 doprint "git rev-list --max-count=1 $commit ... ";
2123 my $sha1 = `git rev-list --max-count=1 $commit`;
2124 my $ret = $?;
2125
2126 logit $sha1;
2127
2128 if ($ret) {
2129 doprint "FAILED\n";
2130 dodie "Failed to get git $commit";
2131 }
2132
2133 print "SUCCESS\n";
2134
2135 chomp $sha1;
2136
2137 return $sha1;
2138}
2139
2140sub monitor {
2141 my $booted = 0;
2142 my $bug = 0;
2143 my $bug_ignored = 0;
2144 my $skip_call_trace = 0;
2145 my $loops;
2146
2147 my $start_time = time;
2148
2149 wait_for_monitor 5;
2150
2151 my $line;
2152 my $full_line = "";
2153
2154 open(DMESG, "> $dmesg") or
2155 dodie "unable to write to $dmesg";
2156
2157 reboot_to;
2158
2159 my $success_start;
2160 my $failure_start;
2161 my $monitor_start = time;
2162 my $done = 0;
2163 my $version_found = 0;
2164
2165 while (!$done) {
2166 if ($bug && defined($stop_after_failure) &&
2167 $stop_after_failure >= 0) {
2168 my $time = $stop_after_failure - (time - $failure_start);
2169 $line = wait_for_input($monitor_fp, $time);
2170 if (!defined($line)) {
2171 doprint "bug timed out after $booted_timeout seconds\n";
2172 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2173 last;
2174 }
2175 } elsif ($booted) {
2176 $line = wait_for_input($monitor_fp, $booted_timeout);
2177 if (!defined($line)) {
2178 my $s = $booted_timeout == 1 ? "" : "s";
2179 doprint "Successful boot found: break after $booted_timeout second$s\n";
2180 last;
2181 }
2182 } else {
2183 $line = wait_for_input($monitor_fp);
2184 if (!defined($line)) {
2185 my $s = $timeout == 1 ? "" : "s";
2186 doprint "Timed out after $timeout second$s\n";
2187 last;
2188 }
2189 }
2190
2191 doprint $line;
2192 print DMESG $line;
2193
2194 # we are not guaranteed to get a full line
2195 $full_line .= $line;
2196
2197 if ($full_line =~ /$success_line/) {
2198 $booted = 1;
2199 $success_start = time;
2200 }
2201
2202 if ($booted && defined($stop_after_success) &&
2203 $stop_after_success >= 0) {
2204 my $now = time;
2205 if ($now - $success_start >= $stop_after_success) {
2206 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2207 last;
2208 }
2209 }
2210
2211 if ($full_line =~ /\[ backtrace testing \]/) {
2212 $skip_call_trace = 1;
2213 }
2214
2215 if ($full_line =~ /call trace:/i) {
2216 if (!$bug && !$skip_call_trace) {
2217 if ($ignore_errors) {
2218 $bug_ignored = 1;
2219 } else {
2220 $bug = 1;
2221 $failure_start = time;
2222 }
2223 }
2224 }
2225
2226 if ($bug && defined($stop_after_failure) &&
2227 $stop_after_failure >= 0) {
2228 my $now = time;
2229 if ($now - $failure_start >= $stop_after_failure) {
2230 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2231 last;
2232 }
2233 }
2234
2235 if ($full_line =~ /\[ end of backtrace testing \]/) {
2236 $skip_call_trace = 0;
2237 }
2238
2239 if ($full_line =~ /Kernel panic -/) {
2240 $failure_start = time;
2241 $bug = 1;
2242 }
2243
2244 # Detect triple faults by testing the banner
2245 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2246 if ($1 eq $version) {
2247 $version_found = 1;
2248 } elsif ($version_found && $detect_triplefault) {
2249 # We already booted into the kernel we are testing,
2250 # but now we booted into another kernel?
2251 # Consider this a triple fault.
2252 doprint "Already booted in Linux kernel $version, but now\n";
2253 doprint "we booted into Linux kernel $1.\n";
2254 doprint "Assuming that this is a triple fault.\n";
2255 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2256 last;
2257 }
2258 }
2259
2260 if ($line =~ /\n/) {
2261 $full_line = "";
2262 }
2263
2264 if ($stop_test_after > 0 && !$booted && !$bug) {
2265 if (time - $monitor_start > $stop_test_after) {
2266 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2267 $done = 1;
2268 }
2269 }
2270 }
2271
2272 my $end_time = time;
2273 $reboot_time = $end_time - $start_time;
2274
2275 close(DMESG);
2276
2277 if ($bug) {
2278 return 0 if ($in_bisect);
2279 fail "failed - got a bug report" and return 0;
2280 }
2281
2282 if (!$booted) {
2283 return 0 if ($in_bisect);
2284 fail "failed - never got a boot prompt." and return 0;
2285 }
2286
2287 if ($bug_ignored) {
2288 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2289 }
2290
2291 return 1;
2292}
2293
2294sub eval_kernel_version {
2295 my ($option) = @_;
2296
2297 $option =~ s/\$KERNEL_VERSION/$version/g;
2298
2299 return $option;
2300}
2301
2302sub do_post_install {
2303
2304 return if (!defined($post_install));
2305
2306 my $cp_post_install = eval_kernel_version $post_install;
2307 run_command "$cp_post_install" or
2308 dodie "Failed to run post install";
2309}
2310
2311# Sometimes the reboot fails, and will hang. We try to ssh to the box
2312# and if we fail, we force another reboot, that should powercycle it.
2313sub test_booted {
2314 if (!run_ssh "echo testing connection") {
2315 reboot $sleep_time;
2316 }
2317}
2318
2319sub install {
2320
2321 return if ($no_install);
2322
2323 my $start_time = time;
2324
2325 if (defined($pre_install)) {
2326 my $cp_pre_install = eval_kernel_version $pre_install;
2327 run_command "$cp_pre_install" or
2328 dodie "Failed to run pre install";
2329 }
2330
2331 my $cp_target = eval_kernel_version $target_image;
2332
2333 test_booted;
2334
2335 run_scp_install "$outputdir/$build_target", "$cp_target" or
2336 dodie "failed to copy image";
2337
2338 my $install_mods = 0;
2339
2340 # should we process modules?
2341 $install_mods = 0;
2342 open(IN, "$output_config") or dodie("Can't read config file");
2343 while (<IN>) {
2344 if (/CONFIG_MODULES(=y)?/) {
2345 if (defined($1)) {
2346 $install_mods = 1;
2347 last;
2348 }
2349 }
2350 }
2351 close(IN);
2352
2353 if (!$install_mods) {
2354 do_post_install;
2355 doprint "No modules needed\n";
2356 my $end_time = time;
2357 $install_time = $end_time - $start_time;
2358 return;
2359 }
2360
2361 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2362 dodie "Failed to install modules";
2363
2364 my $modlib = "/lib/modules/$version";
2365 my $modtar = "ktest-mods.tar.bz2";
2366
2367 run_ssh "rm -rf $modlib" or
2368 dodie "failed to remove old mods: $modlib";
2369
2370 # would be nice if scp -r did not follow symbolic links
2371 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2372 dodie "making tarball";
2373
2374 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2375 dodie "failed to copy modules";
2376
2377 unlink "$tmpdir/$modtar";
2378
2379 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2380 dodie "failed to tar modules";
2381
2382 run_ssh "rm -f /tmp/$modtar";
2383
2384 do_post_install;
2385
2386 my $end_time = time;
2387 $install_time = $end_time - $start_time;
2388}
2389
2390sub get_version {
2391 # get the release name
2392 return if ($have_version);
2393 doprint "$make kernelrelease ... ";
2394 $version = `$make -s kernelrelease | tail -1`;
2395 chomp($version);
2396 doprint "$version\n";
2397 $have_version = 1;
2398}
2399
2400sub start_monitor_and_install {
2401 # Make sure the stable kernel has finished booting
2402
2403 # Install bisects, don't need console
2404 if (defined $console) {
2405 start_monitor;
2406 wait_for_monitor 5;
2407 end_monitor;
2408 }
2409
2410 get_grub_index;
2411 get_version;
2412 install;
2413
2414 start_monitor if (defined $console);
2415 return monitor;
2416}
2417
2418sub process_warning_line {
2419 my ($line) = @_;
2420
2421 chomp $line;
2422
2423 # for distcc heterogeneous systems, some compilers
2424 # do things differently causing warning lines
2425 # to be slightly different. This makes an attempt
2426 # to fixe those issues.
2427
2428 # chop off the index into the line
2429 # using distcc, some compilers give different indexes
2430 # depending on white space
2431 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2432
2433 # Some compilers use UTF-8 extended for quotes and some don't.
2434 $line =~ s/$utf8_quote/'/g;
2435
2436 return $line;
2437}
2438
2439# Read buildlog and check against warnings file for any
2440# new warnings.
2441#
2442# Returns 1 if OK
2443# 0 otherwise
2444sub check_buildlog {
2445 return 1 if (!defined $warnings_file);
2446
2447 my %warnings_list;
2448
2449 # Failed builds should not reboot the target
2450 my $save_no_reboot = $no_reboot;
2451 $no_reboot = 1;
2452
2453 if (-f $warnings_file) {
2454 open(IN, $warnings_file) or
2455 dodie "Error opening $warnings_file";
2456
2457 while (<IN>) {
2458 if (/$check_build_re/) {
2459 my $warning = process_warning_line $_;
2460
2461 $warnings_list{$warning} = 1;
2462 }
2463 }
2464 close(IN);
2465 }
2466
2467 # If warnings file didn't exist, and WARNINGS_FILE exist,
2468 # then we fail on any warning!
2469
2470 open(IN, $buildlog) or dodie "Can't open $buildlog";
2471 while (<IN>) {
2472 if (/$check_build_re/) {
2473 my $warning = process_warning_line $_;
2474
2475 if (!defined $warnings_list{$warning}) {
2476 fail "New warning found (not in $warnings_file)\n$_\n";
2477 $no_reboot = $save_no_reboot;
2478 return 0;
2479 }
2480 }
2481 }
2482 $no_reboot = $save_no_reboot;
2483 close(IN);
2484}
2485
2486sub check_patch_buildlog {
2487 my ($patch) = @_;
2488
2489 my @files = `git show $patch | diffstat -l`;
2490
2491 foreach my $file (@files) {
2492 chomp $file;
2493 }
2494
2495 open(IN, "git show $patch |") or
2496 dodie "failed to show $patch";
2497 while (<IN>) {
2498 if (m,^--- a/(.*),) {
2499 chomp $1;
2500 $files[$#files] = $1;
2501 }
2502 }
2503 close(IN);
2504
2505 open(IN, $buildlog) or dodie "Can't open $buildlog";
2506 while (<IN>) {
2507 if (/^\s*(.*?):.*(warning|error)/) {
2508 my $err = $1;
2509 foreach my $file (@files) {
2510 my $fullpath = "$builddir/$file";
2511 if ($file eq $err || $fullpath eq $err) {
2512 fail "$file built with warnings" and return 0;
2513 }
2514 }
2515 }
2516 }
2517 close(IN);
2518
2519 return 1;
2520}
2521
2522sub apply_min_config {
2523 my $outconfig = "$output_config.new";
2524
2525 # Read the config file and remove anything that
2526 # is in the force_config hash (from minconfig and others)
2527 # then add the force config back.
2528
2529 doprint "Applying minimum configurations into $output_config.new\n";
2530
2531 open (OUT, ">$outconfig") or
2532 dodie "Can't create $outconfig";
2533
2534 if (-f $output_config) {
2535 open (IN, $output_config) or
2536 dodie "Failed to open $output_config";
2537 while (<IN>) {
2538 if (/^(# )?(CONFIG_[^\s=]*)/) {
2539 next if (defined($force_config{$2}));
2540 }
2541 print OUT;
2542 }
2543 close IN;
2544 }
2545 foreach my $config (keys %force_config) {
2546 print OUT "$force_config{$config}\n";
2547 }
2548 close OUT;
2549
2550 run_command "mv $outconfig $output_config";
2551}
2552
2553sub make_oldconfig {
2554
2555 my @force_list = keys %force_config;
2556
2557 if ($#force_list >= 0) {
2558 apply_min_config;
2559 }
2560
2561 if (!run_command "$make olddefconfig") {
2562 # Perhaps olddefconfig doesn't exist in this version of the kernel
2563 # try oldnoconfig
2564 doprint "olddefconfig failed, trying make oldnoconfig\n";
2565 if (!run_command "$make oldnoconfig") {
2566 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2567 # try a yes '' | oldconfig
2568 run_command "yes '' | $make oldconfig" or
2569 dodie "failed make config oldconfig";
2570 }
2571 }
2572}
2573
2574# read a config file and use this to force new configs.
2575sub load_force_config {
2576 my ($config) = @_;
2577
2578 doprint "Loading force configs from $config\n";
2579 open(IN, $config) or
2580 dodie "failed to read $config";
2581 while (<IN>) {
2582 chomp;
2583 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2584 $force_config{$1} = $_;
2585 } elsif (/^# (CONFIG_\S*) is not set/) {
2586 $force_config{$1} = $_;
2587 }
2588 }
2589 close IN;
2590}
2591
2592sub build {
2593 my ($type) = @_;
2594
2595 unlink $buildlog;
2596
2597 my $start_time = time;
2598
2599 # Failed builds should not reboot the target
2600 my $save_no_reboot = $no_reboot;
2601 $no_reboot = 1;
2602
2603 # Calculate a new version from here.
2604 $have_version = 0;
2605
2606 if (defined($pre_build)) {
2607 my $ret = run_command $pre_build;
2608 if (!$ret && defined($pre_build_die) &&
2609 $pre_build_die) {
2610 dodie "failed to pre_build\n";
2611 }
2612 }
2613
2614 if ($type =~ /^useconfig:(.*)/) {
2615 run_command "cp $1 $output_config" or
2616 dodie "could not copy $1 to .config";
2617
2618 $type = "oldconfig";
2619 }
2620
2621 # old config can ask questions
2622 if ($type eq "oldconfig") {
2623 $type = "olddefconfig";
2624
2625 # allow for empty configs
2626 run_command "touch $output_config";
2627
2628 if (!$noclean) {
2629 run_command "mv $output_config $outputdir/config_temp" or
2630 dodie "moving .config";
2631
2632 run_command "$make mrproper" or dodie "make mrproper";
2633
2634 run_command "mv $outputdir/config_temp $output_config" or
2635 dodie "moving config_temp";
2636 }
2637 } elsif (!$noclean) {
2638 unlink "$output_config";
2639 run_command "$make mrproper" or
2640 dodie "make mrproper";
2641 }
2642
2643 # add something to distinguish this build
2644 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2645 print OUT "$localversion\n";
2646 close(OUT);
2647
2648 if (defined($minconfig)) {
2649 load_force_config($minconfig);
2650 }
2651
2652 if ($type ne "olddefconfig") {
2653 run_command "$make $type" or
2654 dodie "failed make config";
2655 }
2656 # Run old config regardless, to enforce min configurations
2657 make_oldconfig;
2658
2659 if (not defined($build_options)){
2660 $build_options = "";
2661 }
2662 my $build_ret = run_command "$make $build_options", $buildlog;
2663
2664 if (defined($post_build)) {
2665 # Because a post build may change the kernel version
2666 # do it now.
2667 get_version;
2668 my $ret = run_command $post_build;
2669 if (!$ret && defined($post_build_die) &&
2670 $post_build_die) {
2671 dodie "failed to post_build\n";
2672 }
2673 }
2674
2675 if (!$build_ret) {
2676 # bisect may need this to pass
2677 if ($in_bisect) {
2678 $no_reboot = $save_no_reboot;
2679 return 0;
2680 }
2681 fail "failed build" and return 0;
2682 }
2683
2684 $no_reboot = $save_no_reboot;
2685
2686 my $end_time = time;
2687 $build_time = $end_time - $start_time;
2688
2689 return 1;
2690}
2691
2692sub halt {
2693 if (!run_ssh "halt" or defined($power_off)) {
2694 if (defined($poweroff_after_halt)) {
2695 sleep $poweroff_after_halt;
2696 run_command "$power_off";
2697 }
2698 } else {
2699 # nope? the zap it!
2700 run_command "$power_off";
2701 }
2702}
2703
2704sub success {
2705 my ($i) = @_;
2706
2707 $successes++;
2708
2709 my $name = "";
2710
2711 if (defined($test_name)) {
2712 $name = " ($test_name)";
2713 }
2714
2715 print_times;
2716
2717 doprint "\n\n";
2718 doprint "*******************************************\n";
2719 doprint "*******************************************\n";
2720 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2721 doprint "*******************************************\n";
2722 doprint "*******************************************\n";
2723
2724 if (defined($store_successes)) {
2725 save_logs "success", $store_successes;
2726 }
2727
2728 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2729 doprint "Reboot and wait $sleep_time seconds\n";
2730 reboot_to_good $sleep_time;
2731 }
2732
2733 if (defined($post_test)) {
2734 run_command $post_test;
2735 }
2736}
2737
2738sub answer_bisect {
2739 for (;;) {
2740 doprint "Pass, fail, or skip? [p/f/s]";
2741 my $ans = <STDIN>;
2742 chomp $ans;
2743 if ($ans eq "p" || $ans eq "P") {
2744 return 1;
2745 } elsif ($ans eq "f" || $ans eq "F") {
2746 return 0;
2747 } elsif ($ans eq "s" || $ans eq "S") {
2748 return -1;
2749 } else {
2750 print "Please answer 'p', 'f', or 's'\n";
2751 }
2752 }
2753}
2754
2755sub child_run_test {
2756
2757 # child should have no power
2758 $reboot_on_error = 0;
2759 $poweroff_on_error = 0;
2760 $die_on_failure = 1;
2761
2762 run_command $run_test, $testlog;
2763
2764 exit $run_command_status;
2765}
2766
2767sub child_finished {
2768 $child_done = 1;
2769}
2770
2771sub do_run_test {
2772 my $child_pid;
2773 my $child_exit;
2774 my $line;
2775 my $full_line;
2776 my $bug = 0;
2777 my $bug_ignored = 0;
2778
2779 my $start_time = time;
2780
2781 wait_for_monitor 1;
2782
2783 doprint "run test $run_test\n";
2784
2785 $child_done = 0;
2786
2787 $SIG{CHLD} = qw(child_finished);
2788
2789 $child_pid = fork;
2790
2791 child_run_test if (!$child_pid);
2792
2793 $full_line = "";
2794
2795 do {
2796 $line = wait_for_input($monitor_fp, 1);
2797 if (defined($line)) {
2798
2799 # we are not guaranteed to get a full line
2800 $full_line .= $line;
2801 doprint $line;
2802
2803 if ($full_line =~ /call trace:/i) {
2804 if ($ignore_errors) {
2805 $bug_ignored = 1;
2806 } else {
2807 $bug = 1;
2808 }
2809 }
2810
2811 if ($full_line =~ /Kernel panic -/) {
2812 $bug = 1;
2813 }
2814
2815 if ($line =~ /\n/) {
2816 $full_line = "";
2817 }
2818 }
2819 } while (!$child_done && !$bug);
2820
2821 if (!$bug && $bug_ignored) {
2822 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2823 }
2824
2825 if ($bug) {
2826 my $failure_start = time;
2827 my $now;
2828 do {
2829 $line = wait_for_input($monitor_fp, 1);
2830 if (defined($line)) {
2831 doprint $line;
2832 }
2833 $now = time;
2834 if ($now - $failure_start >= $stop_after_failure) {
2835 last;
2836 }
2837 } while (defined($line));
2838
2839 doprint "Detected kernel crash!\n";
2840 # kill the child with extreme prejudice
2841 kill 9, $child_pid;
2842 }
2843
2844 waitpid $child_pid, 0;
2845 $child_exit = $? >> 8;
2846
2847 my $end_time = time;
2848 $test_time = $end_time - $start_time;
2849
2850 if (!$bug && $in_bisect) {
2851 if (defined($bisect_ret_good)) {
2852 if ($child_exit == $bisect_ret_good) {
2853 return 1;
2854 }
2855 }
2856 if (defined($bisect_ret_skip)) {
2857 if ($child_exit == $bisect_ret_skip) {
2858 return -1;
2859 }
2860 }
2861 if (defined($bisect_ret_abort)) {
2862 if ($child_exit == $bisect_ret_abort) {
2863 fail "test abort" and return -2;
2864 }
2865 }
2866 if (defined($bisect_ret_bad)) {
2867 if ($child_exit == $bisect_ret_skip) {
2868 return 0;
2869 }
2870 }
2871 if (defined($bisect_ret_default)) {
2872 if ($bisect_ret_default eq "good") {
2873 return 1;
2874 } elsif ($bisect_ret_default eq "bad") {
2875 return 0;
2876 } elsif ($bisect_ret_default eq "skip") {
2877 return -1;
2878 } elsif ($bisect_ret_default eq "abort") {
2879 return -2;
2880 } else {
2881 fail "unknown default action: $bisect_ret_default"
2882 and return -2;
2883 }
2884 }
2885 }
2886
2887 if ($bug || $child_exit) {
2888 return 0 if $in_bisect;
2889 fail "test failed" and return 0;
2890 }
2891 return 1;
2892}
2893
2894sub run_git_bisect {
2895 my ($command) = @_;
2896
2897 doprint "$command ... ";
2898
2899 my $output = `$command 2>&1`;
2900 my $ret = $?;
2901
2902 logit $output;
2903
2904 if ($ret) {
2905 doprint "FAILED\n";
2906 dodie "Failed to git bisect";
2907 }
2908
2909 doprint "SUCCESS\n";
2910 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2911 doprint "$1 [$2]\n";
2912 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2913 $bisect_bad_commit = $1;
2914 doprint "Found bad commit... $1\n";
2915 return 0;
2916 } else {
2917 # we already logged it, just print it now.
2918 print $output;
2919 }
2920
2921 return 1;
2922}
2923
2924sub bisect_reboot {
2925 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2926 reboot_to_good $bisect_sleep_time;
2927}
2928
2929# returns 1 on success, 0 on failure, -1 on skip
2930sub run_bisect_test {
2931 my ($type, $buildtype) = @_;
2932
2933 my $failed = 0;
2934 my $result;
2935 my $output;
2936 my $ret;
2937
2938 $in_bisect = 1;
2939
2940 build $buildtype or $failed = 1;
2941
2942 if ($type ne "build") {
2943 if ($failed && $bisect_skip) {
2944 $in_bisect = 0;
2945 return -1;
2946 }
2947 dodie "Failed on build" if $failed;
2948
2949 # Now boot the box
2950 start_monitor_and_install or $failed = 1;
2951
2952 if ($type ne "boot") {
2953 if ($failed && $bisect_skip) {
2954 end_monitor;
2955 bisect_reboot;
2956 $in_bisect = 0;
2957 return -1;
2958 }
2959 dodie "Failed on boot" if $failed;
2960
2961 do_run_test or $failed = 1;
2962 }
2963 end_monitor;
2964 }
2965
2966 if ($failed) {
2967 $result = 0;
2968 } else {
2969 $result = 1;
2970 }
2971
2972 # reboot the box to a kernel we can ssh to
2973 if ($type ne "build") {
2974 bisect_reboot;
2975 }
2976 $in_bisect = 0;
2977
2978 return $result;
2979}
2980
2981sub run_bisect {
2982 my ($type) = @_;
2983 my $buildtype = "oldconfig";
2984
2985 # We should have a minconfig to use?
2986 if (defined($minconfig)) {
2987 $buildtype = "useconfig:$minconfig";
2988 }
2989
2990 # If the user sets bisect_tries to less than 1, then no tries
2991 # is a success.
2992 my $ret = 1;
2993
2994 # Still let the user manually decide that though.
2995 if ($bisect_tries < 1 && $bisect_manual) {
2996 $ret = answer_bisect;
2997 }
2998
2999 for (my $i = 0; $i < $bisect_tries; $i++) {
3000 if ($bisect_tries > 1) {
3001 my $t = $i + 1;
3002 doprint("Running bisect trial $t of $bisect_tries:\n");
3003 }
3004 $ret = run_bisect_test $type, $buildtype;
3005
3006 if ($bisect_manual) {
3007 $ret = answer_bisect;
3008 }
3009
3010 last if (!$ret);
3011 }
3012
3013 # Are we looking for where it worked, not failed?
3014 if ($reverse_bisect && $ret >= 0) {
3015 $ret = !$ret;
3016 }
3017
3018 if ($ret > 0) {
3019 return "good";
3020 } elsif ($ret == 0) {
3021 return "bad";
3022 } elsif ($bisect_skip) {
3023 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3024 return "skip";
3025 }
3026}
3027
3028sub update_bisect_replay {
3029 my $tmp_log = "$tmpdir/ktest_bisect_log";
3030 run_command "git bisect log > $tmp_log" or
3031 dodie "can't create bisect log";
3032 return $tmp_log;
3033}
3034
3035sub bisect {
3036 my ($i) = @_;
3037
3038 my $result;
3039
3040 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3041 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3042 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3043
3044 my $good = $bisect_good;
3045 my $bad = $bisect_bad;
3046 my $type = $bisect_type;
3047 my $start = $bisect_start;
3048 my $replay = $bisect_replay;
3049 my $start_files = $bisect_files;
3050
3051 if (defined($start_files)) {
3052 $start_files = " -- " . $start_files;
3053 } else {
3054 $start_files = "";
3055 }
3056
3057 # convert to true sha1's
3058 $good = get_sha1($good);
3059 $bad = get_sha1($bad);
3060
3061 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3062 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3063 $reverse_bisect = 1;
3064 } else {
3065 $reverse_bisect = 0;
3066 }
3067
3068 # Can't have a test without having a test to run
3069 if ($type eq "test" && !defined($run_test)) {
3070 $type = "boot";
3071 }
3072
3073 # Check if a bisect was running
3074 my $bisect_start_file = "$builddir/.git/BISECT_START";
3075
3076 my $check = $bisect_check;
3077 my $do_check = defined($check) && $check ne "0";
3078
3079 if ( -f $bisect_start_file ) {
3080 print "Bisect in progress found\n";
3081 if ($do_check) {
3082 print " If you say yes, then no checks of good or bad will be done\n";
3083 }
3084 if (defined($replay)) {
3085 print "** BISECT_REPLAY is defined in config file **";
3086 print " Ignore config option and perform new git bisect log?\n";
3087 if (read_ync " (yes, no, or cancel) ") {
3088 $replay = update_bisect_replay;
3089 $do_check = 0;
3090 }
3091 } elsif (read_yn "read git log and continue?") {
3092 $replay = update_bisect_replay;
3093 $do_check = 0;
3094 }
3095 }
3096
3097 if ($do_check) {
3098 # get current HEAD
3099 my $head = get_sha1("HEAD");
3100
3101 if ($check ne "good") {
3102 doprint "TESTING BISECT BAD [$bad]\n";
3103 run_command "git checkout $bad" or
3104 dodie "Failed to checkout $bad";
3105
3106 $result = run_bisect $type;
3107
3108 if ($result ne "bad") {
3109 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3110 }
3111 }
3112
3113 if ($check ne "bad") {
3114 doprint "TESTING BISECT GOOD [$good]\n";
3115 run_command "git checkout $good" or
3116 dodie "Failed to checkout $good";
3117
3118 $result = run_bisect $type;
3119
3120 if ($result ne "good") {
3121 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3122 }
3123 }
3124
3125 # checkout where we started
3126 run_command "git checkout $head" or
3127 dodie "Failed to checkout $head";
3128 }
3129
3130 run_command "git bisect start$start_files" or
3131 dodie "could not start bisect";
3132
3133 if (defined($replay)) {
3134 run_command "git bisect replay $replay" or
3135 dodie "failed to run replay";
3136 } else {
3137 run_command "git bisect good $good" or
3138 dodie "could not set bisect good to $good";
3139
3140 run_git_bisect "git bisect bad $bad" or
3141 dodie "could not set bisect bad to $bad";
3142 }
3143
3144 if (defined($start)) {
3145 run_command "git checkout $start" or
3146 dodie "failed to checkout $start";
3147 }
3148
3149 my $test;
3150 do {
3151 $result = run_bisect $type;
3152 $test = run_git_bisect "git bisect $result";
3153 print_times;
3154 } while ($test);
3155
3156 run_command "git bisect log" or
3157 dodie "could not capture git bisect log";
3158
3159 run_command "git bisect reset" or
3160 dodie "could not reset git bisect";
3161
3162 doprint "Bad commit was [$bisect_bad_commit]\n";
3163
3164 success $i;
3165}
3166
3167sub assign_configs {
3168 my ($hash, $config) = @_;
3169
3170 doprint "Reading configs from $config\n";
3171
3172 open (IN, $config) or
3173 dodie "Failed to read $config";
3174
3175 while (<IN>) {
3176 chomp;
3177 if (/^((CONFIG\S*)=.*)/) {
3178 ${$hash}{$2} = $1;
3179 } elsif (/^(# (CONFIG\S*) is not set)/) {
3180 ${$hash}{$2} = $1;
3181 }
3182 }
3183
3184 close(IN);
3185}
3186
3187sub process_config_ignore {
3188 my ($config) = @_;
3189
3190 assign_configs \%config_ignore, $config;
3191}
3192
3193sub get_dependencies {
3194 my ($config) = @_;
3195
3196 my $arr = $dependency{$config};
3197 if (!defined($arr)) {
3198 return ();
3199 }
3200
3201 my @deps = @{$arr};
3202
3203 foreach my $dep (@{$arr}) {
3204 print "ADD DEP $dep\n";
3205 @deps = (@deps, get_dependencies $dep);
3206 }
3207
3208 return @deps;
3209}
3210
3211sub save_config {
3212 my ($pc, $file) = @_;
3213
3214 my %configs = %{$pc};
3215
3216 doprint "Saving configs into $file\n";
3217
3218 open(OUT, ">$file") or dodie "Can not write to $file";
3219
3220 foreach my $config (keys %configs) {
3221 print OUT "$configs{$config}\n";
3222 }
3223 close(OUT);
3224}
3225
3226sub create_config {
3227 my ($name, $pc) = @_;
3228
3229 doprint "Creating old config from $name configs\n";
3230
3231 save_config $pc, $output_config;
3232
3233 make_oldconfig;
3234}
3235
3236sub run_config_bisect_test {
3237 my ($type) = @_;
3238
3239 my $ret = run_bisect_test $type, "oldconfig";
3240
3241 if ($bisect_manual) {
3242 $ret = answer_bisect;
3243 }
3244
3245 return $ret;
3246}
3247
3248sub config_bisect_end {
3249 my ($good, $bad) = @_;
3250 my $diffexec = "diff -u";
3251
3252 if (-f "$builddir/scripts/diffconfig") {
3253 $diffexec = "$builddir/scripts/diffconfig";
3254 }
3255 doprint "\n\n***************************************\n";
3256 doprint "No more config bisecting possible.\n";
3257 run_command "$diffexec $good $bad", 1;
3258 doprint "***************************************\n\n";
3259}
3260
3261sub run_config_bisect {
3262 my ($good, $bad, $last_result) = @_;
3263 my $reset = "";
3264 my $cmd;
3265 my $ret;
3266
3267 if (!length($last_result)) {
3268 $reset = "-r";
3269 }
3270 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3271
3272 # config-bisect returns:
3273 # 0 if there is more to bisect
3274 # 1 for finding a good config
3275 # 2 if it can not find any more configs
3276 # -1 (255) on error
3277 if ($run_command_status) {
3278 return $run_command_status;
3279 }
3280
3281 $ret = run_config_bisect_test $config_bisect_type;
3282 if ($ret) {
3283 doprint "NEW GOOD CONFIG ($pass)\n";
3284 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3285 $pass++;
3286 # Return 3 for good config
3287 return 3;
3288 } else {
3289 doprint "NEW BAD CONFIG ($pass)\n";
3290 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3291 $pass++;
3292 # Return 4 for bad config
3293 return 4;
3294 }
3295}
3296
3297sub config_bisect {
3298 my ($i) = @_;
3299
3300 my $good_config;
3301 my $bad_config;
3302
3303 my $type = $config_bisect_type;
3304 my $ret;
3305
3306 $bad_config = $config_bisect;
3307
3308 if (defined($config_bisect_good)) {
3309 $good_config = $config_bisect_good;
3310 } elsif (defined($minconfig)) {
3311 $good_config = $minconfig;
3312 } else {
3313 doprint "No config specified, checking if defconfig works";
3314 $ret = run_bisect_test $type, "defconfig";
3315 if (!$ret) {
3316 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3317 return 1;
3318 }
3319 $good_config = $output_config;
3320 }
3321
3322 if (!defined($config_bisect_exec)) {
3323 # First check the location that ktest.pl ran
3324 my @locations = (
3325 "$pwd/config-bisect.pl",
3326 "$dirname/config-bisect.pl",
3327 "$builddir/tools/testing/ktest/config-bisect.pl",
3328 undef );
3329 foreach my $loc (@locations) {
3330 doprint "loc = $loc\n";
3331 $config_bisect_exec = $loc;
3332 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3333 }
3334 if (!defined($config_bisect_exec)) {
3335 fail "Could not find an executable config-bisect.pl\n",
3336 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3337 return 1;
3338 }
3339 }
3340
3341 # we don't want min configs to cause issues here.
3342 doprint "Disabling 'MIN_CONFIG' for this test\n";
3343 undef $minconfig;
3344
3345 my %good_configs;
3346 my %bad_configs;
3347 my %tmp_configs;
3348
3349 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3350 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3351 if (-f "$tmpdir/good_config.tmp") {
3352 $good_config = "$tmpdir/good_config.tmp";
3353 } else {
3354 $good_config = "$tmpdir/good_config";
3355 }
3356 if (-f "$tmpdir/bad_config.tmp") {
3357 $bad_config = "$tmpdir/bad_config.tmp";
3358 } else {
3359 $bad_config = "$tmpdir/bad_config";
3360 }
3361 }
3362 }
3363 doprint "Run good configs through make oldconfig\n";
3364 assign_configs \%tmp_configs, $good_config;
3365 create_config "$good_config", \%tmp_configs;
3366 $good_config = "$tmpdir/good_config";
3367 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3368
3369 doprint "Run bad configs through make oldconfig\n";
3370 assign_configs \%tmp_configs, $bad_config;
3371 create_config "$bad_config", \%tmp_configs;
3372 $bad_config = "$tmpdir/bad_config";
3373 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3374
3375 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3376 if ($config_bisect_check ne "good") {
3377 doprint "Testing bad config\n";
3378
3379 $ret = run_bisect_test $type, "useconfig:$bad_config";
3380 if ($ret) {
3381 fail "Bad config succeeded when expected to fail!";
3382 return 0;
3383 }
3384 }
3385 if ($config_bisect_check ne "bad") {
3386 doprint "Testing good config\n";
3387
3388 $ret = run_bisect_test $type, "useconfig:$good_config";
3389 if (!$ret) {
3390 fail "Good config failed when expected to succeed!";
3391 return 0;
3392 }
3393 }
3394 }
3395
3396 my $last_run = "";
3397
3398 do {
3399 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3400 if ($ret == 3) {
3401 $last_run = "good";
3402 } elsif ($ret == 4) {
3403 $last_run = "bad";
3404 }
3405 print_times;
3406 } while ($ret == 3 || $ret == 4);
3407
3408 if ($ret == 2) {
3409 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3410 }
3411
3412 return $ret if ($ret < 0);
3413
3414 success $i;
3415}
3416
3417sub patchcheck_reboot {
3418 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3419 reboot_to_good $patchcheck_sleep_time;
3420}
3421
3422sub patchcheck {
3423 my ($i) = @_;
3424
3425 dodie "PATCHCHECK_START[$i] not defined\n"
3426 if (!defined($patchcheck_start));
3427 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3428 if (!defined($patchcheck_type));
3429
3430 my $start = $patchcheck_start;
3431
3432 my $cherry = $patchcheck_cherry;
3433 if (!defined($cherry)) {
3434 $cherry = 0;
3435 }
3436
3437 my $end = "HEAD";
3438 if (defined($patchcheck_end)) {
3439 $end = $patchcheck_end;
3440 } elsif ($cherry) {
3441 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3442 }
3443
3444 # Get the true sha1's since we can use things like HEAD~3
3445 $start = get_sha1($start);
3446 $end = get_sha1($end);
3447
3448 my $type = $patchcheck_type;
3449
3450 # Can't have a test without having a test to run
3451 if ($type eq "test" && !defined($run_test)) {
3452 $type = "boot";
3453 }
3454
3455 if ($cherry) {
3456 open (IN, "git cherry -v $start $end|") or
3457 dodie "could not get git list";
3458 } else {
3459 open (IN, "git log --pretty=oneline $end|") or
3460 dodie "could not get git list";
3461 }
3462
3463 my @list;
3464
3465 while (<IN>) {
3466 chomp;
3467 # git cherry adds a '+' we want to remove
3468 s/^\+ //;
3469 $list[$#list+1] = $_;
3470 last if (/^$start/);
3471 }
3472 close(IN);
3473
3474 if (!$cherry) {
3475 if ($list[$#list] !~ /^$start/) {
3476 fail "SHA1 $start not found";
3477 }
3478
3479 # go backwards in the list
3480 @list = reverse @list;
3481 }
3482
3483 doprint("Going to test the following commits:\n");
3484 foreach my $l (@list) {
3485 doprint "$l\n";
3486 }
3487
3488 my $save_clean = $noclean;
3489 my %ignored_warnings;
3490
3491 if (defined($ignore_warnings)) {
3492 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3493 $ignored_warnings{$sha1} = 1;
3494 }
3495 }
3496
3497 $in_patchcheck = 1;
3498 foreach my $item (@list) {
3499 my $sha1 = $item;
3500 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3501
3502 doprint "\nProcessing commit \"$item\"\n\n";
3503
3504 run_command "git checkout $sha1" or
3505 dodie "Failed to checkout $sha1";
3506
3507 # only clean on the first and last patch
3508 if ($item eq $list[0] ||
3509 $item eq $list[$#list]) {
3510 $noclean = $save_clean;
3511 } else {
3512 $noclean = 1;
3513 }
3514
3515 if (defined($minconfig)) {
3516 build "useconfig:$minconfig" or return 0;
3517 } else {
3518 # ?? no config to use?
3519 build "oldconfig" or return 0;
3520 }
3521
3522 # No need to do per patch checking if warnings file exists
3523 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3524 check_patch_buildlog $sha1 or return 0;
3525 }
3526
3527 check_buildlog or return 0;
3528
3529 next if ($type eq "build");
3530
3531 my $failed = 0;
3532
3533 start_monitor_and_install or $failed = 1;
3534
3535 if (!$failed && $type ne "boot"){
3536 do_run_test or $failed = 1;
3537 }
3538 end_monitor;
3539 if ($failed) {
3540 print_times;
3541 return 0;
3542 }
3543 patchcheck_reboot;
3544 print_times;
3545 }
3546 $in_patchcheck = 0;
3547 success $i;
3548
3549 return 1;
3550}
3551
3552sub add_dep {
3553 # $config depends on $dep
3554 my ($config, $dep) = @_;
3555
3556 if (defined($depends{$config})) {
3557 $depends{$config} .= " " . $dep;
3558 } else {
3559 $depends{$config} = $dep;
3560 }
3561
3562 # record the number of configs depending on $dep
3563 if (defined $depcount{$dep}) {
3564 $depcount{$dep}++;
3565 } else {
3566 $depcount{$dep} = 1;
3567 }
3568}
3569
3570# taken from streamline_config.pl
3571sub read_kconfig {
3572 my ($kconfig) = @_;
3573
3574 my $state = "NONE";
3575 my $config;
3576 my @kconfigs;
3577
3578 my $cont = 0;
3579 my $line;
3580
3581 if (! -f $kconfig) {
3582 doprint "file $kconfig does not exist, skipping\n";
3583 return;
3584 }
3585
3586 open(KIN, "$kconfig")
3587 or dodie "Can't open $kconfig";
3588 while (<KIN>) {
3589 chomp;
3590
3591 # Make sure that lines ending with \ continue
3592 if ($cont) {
3593 $_ = $line . " " . $_;
3594 }
3595
3596 if (s/\\$//) {
3597 $cont = 1;
3598 $line = $_;
3599 next;
3600 }
3601
3602 $cont = 0;
3603
3604 # collect any Kconfig sources
3605 if (/^source\s*"(.*)"/) {
3606 $kconfigs[$#kconfigs+1] = $1;
3607 }
3608
3609 # configs found
3610 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3611 $state = "NEW";
3612 $config = $2;
3613
3614 for (my $i = 0; $i < $iflevel; $i++) {
3615 add_dep $config, $ifdeps[$i];
3616 }
3617
3618 # collect the depends for the config
3619 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3620
3621 add_dep $config, $1;
3622
3623 # Get the configs that select this config
3624 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3625
3626 # selected by depends on config
3627 add_dep $1, $config;
3628
3629 # Check for if statements
3630 } elsif (/^if\s+(.*\S)\s*$/) {
3631 my $deps = $1;
3632 # remove beginning and ending non text
3633 $deps =~ s/^[^a-zA-Z0-9_]*//;
3634 $deps =~ s/[^a-zA-Z0-9_]*$//;
3635
3636 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3637
3638 $ifdeps[$iflevel++] = join ':', @deps;
3639
3640 } elsif (/^endif/) {
3641
3642 $iflevel-- if ($iflevel);
3643
3644 # stop on "help"
3645 } elsif (/^\s*help\s*$/) {
3646 $state = "NONE";
3647 }
3648 }
3649 close(KIN);
3650
3651 # read in any configs that were found.
3652 foreach $kconfig (@kconfigs) {
3653 if (!defined($read_kconfigs{$kconfig})) {
3654 $read_kconfigs{$kconfig} = 1;
3655 read_kconfig("$builddir/$kconfig");
3656 }
3657 }
3658}
3659
3660sub read_depends {
3661 # find out which arch this is by the kconfig file
3662 open (IN, $output_config) or
3663 dodie "Failed to read $output_config";
3664 my $arch;
3665 while (<IN>) {
3666 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3667 $arch = $1;
3668 last;
3669 }
3670 }
3671 close IN;
3672
3673 if (!defined($arch)) {
3674 doprint "Could not find arch from config file\n";
3675 doprint "no dependencies used\n";
3676 return;
3677 }
3678
3679 # arch is really the subarch, we need to know
3680 # what directory to look at.
3681 if ($arch eq "i386" || $arch eq "x86_64") {
3682 $arch = "x86";
3683 }
3684
3685 my $kconfig = "$builddir/arch/$arch/Kconfig";
3686
3687 if (! -f $kconfig && $arch =~ /\d$/) {
3688 my $orig = $arch;
3689 # some subarchs have numbers, truncate them
3690 $arch =~ s/\d*$//;
3691 $kconfig = "$builddir/arch/$arch/Kconfig";
3692 if (! -f $kconfig) {
3693 doprint "No idea what arch dir $orig is for\n";
3694 doprint "no dependencies used\n";
3695 return;
3696 }
3697 }
3698
3699 read_kconfig($kconfig);
3700}
3701
3702sub make_new_config {
3703 my @configs = @_;
3704
3705 open (OUT, ">$output_config")
3706 or dodie "Failed to write $output_config";
3707
3708 foreach my $config (@configs) {
3709 print OUT "$config\n";
3710 }
3711 close OUT;
3712}
3713
3714sub chomp_config {
3715 my ($config) = @_;
3716
3717 $config =~ s/CONFIG_//;
3718
3719 return $config;
3720}
3721
3722sub get_depends {
3723 my ($dep) = @_;
3724
3725 my $kconfig = chomp_config $dep;
3726
3727 $dep = $depends{"$kconfig"};
3728
3729 # the dep string we have saves the dependencies as they
3730 # were found, including expressions like ! && ||. We
3731 # want to split this out into just an array of configs.
3732
3733 my $valid = "A-Za-z_0-9";
3734
3735 my @configs;
3736
3737 while ($dep =~ /[$valid]/) {
3738 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3739 my $conf = "CONFIG_" . $1;
3740
3741 $configs[$#configs + 1] = $conf;
3742
3743 $dep =~ s/^[^$valid]*[$valid]+//;
3744 } else {
3745 dodie "this should never happen";
3746 }
3747 }
3748
3749 return @configs;
3750}
3751
3752sub test_this_config {
3753 my ($config) = @_;
3754
3755 my $found;
3756
3757 # if we already processed this config, skip it
3758 if (defined($processed_configs{$config})) {
3759 return undef;
3760 }
3761 $processed_configs{$config} = 1;
3762
3763 # if this config failed during this round, skip it
3764 if (defined($nochange_config{$config})) {
3765 return undef;
3766 }
3767
3768 my $kconfig = chomp_config $config;
3769
3770 # Test dependencies first
3771 if (defined($depends{"$kconfig"})) {
3772 my @parents = get_depends $config;
3773 foreach my $parent (@parents) {
3774 # if the parent is in the min config, check it first
3775 next if (!defined($min_configs{$parent}));
3776 $found = test_this_config($parent);
3777 if (defined($found)) {
3778 return $found;
3779 }
3780 }
3781 }
3782
3783 # Remove this config from the list of configs
3784 # do a make olddefconfig and then read the resulting
3785 # .config to make sure it is missing the config that
3786 # we had before
3787 my %configs = %min_configs;
3788 $configs{$config} = "# $config is not set";
3789 make_new_config ((values %configs), (values %keep_configs));
3790 make_oldconfig;
3791 delete $configs{$config};
3792 undef %configs;
3793 assign_configs \%configs, $output_config;
3794
3795 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3796 return $config;
3797 }
3798
3799 doprint "disabling config $config did not change .config\n";
3800
3801 $nochange_config{$config} = 1;
3802
3803 return undef;
3804}
3805
3806sub make_min_config {
3807 my ($i) = @_;
3808
3809 my $type = $minconfig_type;
3810 if ($type ne "boot" && $type ne "test") {
3811 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3812 " make_min_config works only with 'boot' and 'test'\n" and return;
3813 }
3814
3815 if (!defined($output_minconfig)) {
3816 fail "OUTPUT_MIN_CONFIG not defined" and return;
3817 }
3818
3819 # If output_minconfig exists, and the start_minconfig
3820 # came from min_config, than ask if we should use
3821 # that instead.
3822 if (-f $output_minconfig && !$start_minconfig_defined) {
3823 print "$output_minconfig exists\n";
3824 if (!defined($use_output_minconfig)) {
3825 if (read_yn " Use it as minconfig?") {
3826 $start_minconfig = $output_minconfig;
3827 }
3828 } elsif ($use_output_minconfig > 0) {
3829 doprint "Using $output_minconfig as MIN_CONFIG\n";
3830 $start_minconfig = $output_minconfig;
3831 } else {
3832 doprint "Set to still use MIN_CONFIG as starting point\n";
3833 }
3834 }
3835
3836 if (!defined($start_minconfig)) {
3837 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3838 }
3839
3840 my $temp_config = "$tmpdir/temp_config";
3841
3842 # First things first. We build an allnoconfig to find
3843 # out what the defaults are that we can't touch.
3844 # Some are selections, but we really can't handle selections.
3845
3846 my $save_minconfig = $minconfig;
3847 undef $minconfig;
3848
3849 run_command "$make allnoconfig" or return 0;
3850
3851 read_depends;
3852
3853 process_config_ignore $output_config;
3854
3855 undef %save_configs;
3856 undef %min_configs;
3857
3858 if (defined($ignore_config)) {
3859 # make sure the file exists
3860 `touch $ignore_config`;
3861 assign_configs \%save_configs, $ignore_config;
3862 }
3863
3864 %keep_configs = %save_configs;
3865
3866 doprint "Load initial configs from $start_minconfig\n";
3867
3868 # Look at the current min configs, and save off all the
3869 # ones that were set via the allnoconfig
3870 assign_configs \%min_configs, $start_minconfig;
3871
3872 my @config_keys = keys %min_configs;
3873
3874 # All configs need a depcount
3875 foreach my $config (@config_keys) {
3876 my $kconfig = chomp_config $config;
3877 if (!defined $depcount{$kconfig}) {
3878 $depcount{$kconfig} = 0;
3879 }
3880 }
3881
3882 # Remove anything that was set by the make allnoconfig
3883 # we shouldn't need them as they get set for us anyway.
3884 foreach my $config (@config_keys) {
3885 # Remove anything in the ignore_config
3886 if (defined($keep_configs{$config})) {
3887 my $file = $ignore_config;
3888 $file =~ s,.*/(.*?)$,$1,;
3889 doprint "$config set by $file ... ignored\n";
3890 delete $min_configs{$config};
3891 next;
3892 }
3893 # But make sure the settings are the same. If a min config
3894 # sets a selection, we do not want to get rid of it if
3895 # it is not the same as what we have. Just move it into
3896 # the keep configs.
3897 if (defined($config_ignore{$config})) {
3898 if ($config_ignore{$config} ne $min_configs{$config}) {
3899 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3900 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3901 $keep_configs{$config} = $min_configs{$config};
3902 } else {
3903 doprint "$config set by allnoconfig ... ignored\n";
3904 }
3905 delete $min_configs{$config};
3906 }
3907 }
3908
3909 my $done = 0;
3910 my $take_two = 0;
3911
3912 while (!$done) {
3913 my $config;
3914 my $found;
3915
3916 # Now disable each config one by one and do a make oldconfig
3917 # till we find a config that changes our list.
3918
3919 my @test_configs = keys %min_configs;
3920
3921 # Sort keys by who is most dependent on
3922 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3923 @test_configs ;
3924
3925 # Put configs that did not modify the config at the end.
3926 my $reset = 1;
3927 for (my $i = 0; $i < $#test_configs; $i++) {
3928 if (!defined($nochange_config{$test_configs[0]})) {
3929 $reset = 0;
3930 last;
3931 }
3932 # This config didn't change the .config last time.
3933 # Place it at the end
3934 my $config = shift @test_configs;
3935 push @test_configs, $config;
3936 }
3937
3938 # if every test config has failed to modify the .config file
3939 # in the past, then reset and start over.
3940 if ($reset) {
3941 undef %nochange_config;
3942 }
3943
3944 undef %processed_configs;
3945
3946 foreach my $config (@test_configs) {
3947
3948 $found = test_this_config $config;
3949
3950 last if (defined($found));
3951
3952 # oh well, try another config
3953 }
3954
3955 if (!defined($found)) {
3956 # we could have failed due to the nochange_config hash
3957 # reset and try again
3958 if (!$take_two) {
3959 undef %nochange_config;
3960 $take_two = 1;
3961 next;
3962 }
3963 doprint "No more configs found that we can disable\n";
3964 $done = 1;
3965 last;
3966 }
3967 $take_two = 0;
3968
3969 $config = $found;
3970
3971 doprint "Test with $config disabled\n";
3972
3973 # set in_bisect to keep build and monitor from dieing
3974 $in_bisect = 1;
3975
3976 my $failed = 0;
3977 build "oldconfig" or $failed = 1;
3978 if (!$failed) {
3979 start_monitor_and_install or $failed = 1;
3980
3981 if ($type eq "test" && !$failed) {
3982 do_run_test or $failed = 1;
3983 }
3984
3985 end_monitor;
3986 }
3987
3988 $in_bisect = 0;
3989
3990 if ($failed) {
3991 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3992 # this config is needed, add it to the ignore list.
3993 $keep_configs{$config} = $min_configs{$config};
3994 $save_configs{$config} = $min_configs{$config};
3995 delete $min_configs{$config};
3996
3997 # update new ignore configs
3998 if (defined($ignore_config)) {
3999 open (OUT, ">$temp_config") or
4000 dodie "Can't write to $temp_config";
4001 foreach my $config (keys %save_configs) {
4002 print OUT "$save_configs{$config}\n";
4003 }
4004 close OUT;
4005 run_command "mv $temp_config $ignore_config" or
4006 dodie "failed to copy update to $ignore_config";
4007 }
4008
4009 } else {
4010 # We booted without this config, remove it from the minconfigs.
4011 doprint "$config is not needed, disabling\n";
4012
4013 delete $min_configs{$config};
4014
4015 # Also disable anything that is not enabled in this config
4016 my %configs;
4017 assign_configs \%configs, $output_config;
4018 my @config_keys = keys %min_configs;
4019 foreach my $config (@config_keys) {
4020 if (!defined($configs{$config})) {
4021 doprint "$config is not set, disabling\n";
4022 delete $min_configs{$config};
4023 }
4024 }
4025
4026 # Save off all the current mandatory configs
4027 open (OUT, ">$temp_config") or
4028 dodie "Can't write to $temp_config";
4029 foreach my $config (keys %keep_configs) {
4030 print OUT "$keep_configs{$config}\n";
4031 }
4032 foreach my $config (keys %min_configs) {
4033 print OUT "$min_configs{$config}\n";
4034 }
4035 close OUT;
4036
4037 run_command "mv $temp_config $output_minconfig" or
4038 dodie "failed to copy update to $output_minconfig";
4039 }
4040
4041 doprint "Reboot and wait $sleep_time seconds\n";
4042 reboot_to_good $sleep_time;
4043 }
4044
4045 success $i;
4046 return 1;
4047}
4048
4049sub make_warnings_file {
4050 my ($i) = @_;
4051
4052 if (!defined($warnings_file)) {
4053 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4054 }
4055
4056 if ($build_type eq "nobuild") {
4057 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4058 }
4059
4060 build $build_type or dodie "Failed to build";
4061
4062 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4063
4064 open(IN, $buildlog) or dodie "Can't open $buildlog";
4065 while (<IN>) {
4066 # Some compilers use UTF-8 extended for quotes
4067 # for distcc heterogeneous systems, this causes issues
4068 s/$utf8_quote/'/g;
4069
4070 if (/$check_build_re/) {
4071 print OUT;
4072 }
4073 }
4074 close(IN);
4075
4076 close(OUT);
4077
4078 success $i;
4079}
4080
4081sub option_defined {
4082 my ($option) = @_;
4083
4084 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4085 return 1;
4086 }
4087
4088 return 0;
4089}
4090
4091sub __set_test_option {
4092 my ($name, $i) = @_;
4093
4094 my $option = "$name\[$i\]";
4095
4096 if (option_defined($option)) {
4097 return $opt{$option};
4098 }
4099
4100 foreach my $test (keys %repeat_tests) {
4101 if ($i >= $test &&
4102 $i < $test + $repeat_tests{$test}) {
4103 $option = "$name\[$test\]";
4104 if (option_defined($option)) {
4105 return $opt{$option};
4106 }
4107 }
4108 }
4109
4110 if (option_defined($name)) {
4111 return $opt{$name};
4112 }
4113
4114 return undef;
4115}
4116
4117sub set_test_option {
4118 my ($name, $i) = @_;
4119
4120 my $option = __set_test_option($name, $i);
4121 return $option if (!defined($option));
4122
4123 return eval_option($name, $option, $i);
4124}
4125
4126sub find_mailer {
4127 my ($mailer) = @_;
4128
4129 my @paths = split /:/, $ENV{PATH};
4130
4131 # sendmail is usually in /usr/sbin
4132 $paths[$#paths + 1] = "/usr/sbin";
4133
4134 foreach my $path (@paths) {
4135 if (-x "$path/$mailer") {
4136 return $path;
4137 }
4138 }
4139
4140 return undef;
4141}
4142
4143sub do_send_mail {
4144 my ($subject, $message, $file) = @_;
4145
4146 if (!defined($mail_path)) {
4147 # find the mailer
4148 $mail_path = find_mailer $mailer;
4149 if (!defined($mail_path)) {
4150 die "\nCan not find $mailer in PATH\n";
4151 }
4152 }
4153
4154 my $header_file = "$tmpdir/header";
4155 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4156 print HEAD "To: $mailto\n";
4157 print HEAD "Subject: $subject\n\n";
4158 print HEAD "$message\n";
4159 close HEAD;
4160
4161 if (!defined($mail_command)) {
4162 if ($mailer eq "mail" || $mailer eq "mailx") {
4163 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4164 } elsif ($mailer eq "sendmail" ) {
4165 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4166 } else {
4167 die "\nYour mailer: $mailer is not supported.\n";
4168 }
4169 }
4170
4171 if (defined($file)) {
4172 $mail_command =~ s/\$BODY_FILE/$file/g;
4173 } else {
4174 $mail_command =~ s/\$BODY_FILE//g;
4175 }
4176
4177 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4178 $mail_command =~ s/\$MAILER/$mailer/g;
4179 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4180 $mail_command =~ s/\$MAILTO/$mailto/g;
4181 $mail_command =~ s/\$SUBJECT/$subject/g;
4182 $mail_command =~ s/\$MESSAGE/$message/g;
4183
4184 my $ret = run_command $mail_command;
4185 if (!$ret && defined($file)) {
4186 # try again without the file
4187 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4188 do_send_email($subject, $message);
4189 }
4190}
4191
4192sub send_email {
4193 if (defined($mailto)) {
4194 if (!defined($mailer)) {
4195 doprint "No email sent: email or mailer not specified in config.\n";
4196 return;
4197 }
4198 do_send_mail @_;
4199 }
4200}
4201
4202sub cancel_test {
4203 if ($email_when_canceled) {
4204 my $name = get_test_name;
4205 send_email("KTEST: Your [$name] test was cancelled",
4206 "Your test started at $script_start_time was cancelled: sig int");
4207 }
4208 die "\nCaught Sig Int, test interrupted: $!\n"
4209}
4210
4211$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4212
4213if ($#ARGV == 0) {
4214 $ktest_config = $ARGV[0];
4215 if (! -f $ktest_config) {
4216 print "$ktest_config does not exist.\n";
4217 if (!read_yn "Create it?") {
4218 exit 0;
4219 }
4220 }
4221}
4222
4223if (! -f $ktest_config) {
4224 $newconfig = 1;
4225 get_test_case;
4226 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4227 print OUT << "EOF"
4228# Generated by ktest.pl
4229#
4230
4231# PWD is a ktest.pl variable that will result in the process working
4232# directory that ktest.pl is executed in.
4233
4234# THIS_DIR is automatically assigned the PWD of the path that generated
4235# the config file. It is best to use this variable when assigning other
4236# directory paths within this directory. This allows you to easily
4237# move the test cases to other locations or to other machines.
4238#
4239THIS_DIR := $variable{"PWD"}
4240
4241# Define each test with TEST_START
4242# The config options below it will override the defaults
4243TEST_START
4244TEST_TYPE = $default{"TEST_TYPE"}
4245
4246DEFAULTS
4247EOF
4248;
4249 close(OUT);
4250}
4251read_config $ktest_config;
4252
4253if (defined($opt{"LOG_FILE"})) {
4254 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4255}
4256
4257# Append any configs entered in manually to the config file.
4258my @new_configs = keys %entered_configs;
4259if ($#new_configs >= 0) {
4260 print "\nAppending entered in configs to $ktest_config\n";
4261 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4262 foreach my $config (@new_configs) {
4263 print OUT "$config = $entered_configs{$config}\n";
4264 $opt{$config} = process_variables($entered_configs{$config});
4265 }
4266}
4267
4268if (defined($opt{"LOG_FILE"})) {
4269 if ($opt{"CLEAR_LOG"}) {
4270 unlink $opt{"LOG_FILE"};
4271 }
4272 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4273 LOG->autoflush(1);
4274}
4275
4276doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4277
4278for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4279
4280 if (!$i) {
4281 doprint "DEFAULT OPTIONS:\n";
4282 } else {
4283 doprint "\nTEST $i OPTIONS";
4284 if (defined($repeat_tests{$i})) {
4285 $repeat = $repeat_tests{$i};
4286 doprint " ITERATE $repeat";
4287 }
4288 doprint "\n";
4289 }
4290
4291 foreach my $option (sort keys %opt) {
4292 if ($option =~ /\[(\d+)\]$/) {
4293 next if ($i != $1);
4294 } else {
4295 next if ($i);
4296 }
4297
4298 doprint "$option = $opt{$option}\n";
4299 }
4300}
4301
4302$SIG{INT} = qw(cancel_test);
4303
4304# First we need to do is the builds
4305for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4306
4307 # Do not reboot on failing test options
4308 $no_reboot = 1;
4309 $reboot_success = 0;
4310
4311 $have_version = 0;
4312
4313 $iteration = $i;
4314
4315 $build_time = 0;
4316 $install_time = 0;
4317 $reboot_time = 0;
4318 $test_time = 0;
4319
4320 undef %force_config;
4321
4322 my $makecmd = set_test_option("MAKE_CMD", $i);
4323
4324 $outputdir = set_test_option("OUTPUT_DIR", $i);
4325 $builddir = set_test_option("BUILD_DIR", $i);
4326
4327 chdir $builddir || dodie "can't change directory to $builddir";
4328
4329 if (!-d $outputdir) {
4330 mkpath($outputdir) or
4331 dodie "can't create $outputdir";
4332 }
4333
4334 $make = "$makecmd O=$outputdir";
4335
4336 # Load all the options into their mapped variable names
4337 foreach my $opt (keys %option_map) {
4338 ${$option_map{$opt}} = set_test_option($opt, $i);
4339 }
4340
4341 $start_minconfig_defined = 1;
4342
4343 # The first test may override the PRE_KTEST option
4344 if ($i == 1) {
4345 if (defined($pre_ktest)) {
4346 doprint "\n";
4347 run_command $pre_ktest;
4348 }
4349 if ($email_when_started) {
4350 my $name = get_test_name;
4351 send_email("KTEST: Your [$name] test was started",
4352 "Your test was started on $script_start_time");
4353 }
4354 }
4355
4356 # Any test can override the POST_KTEST option
4357 # The last test takes precedence.
4358 if (defined($post_ktest)) {
4359 $final_post_ktest = $post_ktest;
4360 }
4361
4362 if (!defined($start_minconfig)) {
4363 $start_minconfig_defined = 0;
4364 $start_minconfig = $minconfig;
4365 }
4366
4367 if (!-d $tmpdir) {
4368 mkpath($tmpdir) or
4369 dodie "can't create $tmpdir";
4370 }
4371
4372 $ENV{"SSH_USER"} = $ssh_user;
4373 $ENV{"MACHINE"} = $machine;
4374
4375 $buildlog = "$tmpdir/buildlog-$machine";
4376 $testlog = "$tmpdir/testlog-$machine";
4377 $dmesg = "$tmpdir/dmesg-$machine";
4378 $output_config = "$outputdir/.config";
4379
4380 if (!$buildonly) {
4381 $target = "$ssh_user\@$machine";
4382 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4383 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4384 } elsif ($reboot_type eq "grub2") {
4385 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4386 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4387 } elsif ($reboot_type eq "syslinux") {
4388 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4389 }
4390 }
4391
4392 my $run_type = $build_type;
4393 if ($test_type eq "patchcheck") {
4394 $run_type = $patchcheck_type;
4395 } elsif ($test_type eq "bisect") {
4396 $run_type = $bisect_type;
4397 } elsif ($test_type eq "config_bisect") {
4398 $run_type = $config_bisect_type;
4399 } elsif ($test_type eq "make_min_config") {
4400 $run_type = "";
4401 } elsif ($test_type eq "make_warnings_file") {
4402 $run_type = "";
4403 }
4404
4405 # mistake in config file?
4406 if (!defined($run_type)) {
4407 $run_type = "ERROR";
4408 }
4409
4410 my $installme = "";
4411 $installme = " no_install" if ($no_install);
4412
4413 my $name = "";
4414
4415 if (defined($test_name)) {
4416 $name = " ($test_name)";
4417 }
4418
4419 doprint "\n\n";
4420
4421 if (defined($opt{"LOG_FILE"})) {
4422 $test_log_start = tell(LOG);
4423 }
4424
4425 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4426
4427 if (defined($pre_test)) {
4428 my $ret = run_command $pre_test;
4429 if (!$ret && defined($pre_test_die) &&
4430 $pre_test_die) {
4431 dodie "failed to pre_test\n";
4432 }
4433 }
4434
4435 unlink $dmesg;
4436 unlink $buildlog;
4437 unlink $testlog;
4438
4439 if (defined($addconfig)) {
4440 my $min = $minconfig;
4441 if (!defined($minconfig)) {
4442 $min = "";
4443 }
4444 run_command "cat $addconfig $min > $tmpdir/add_config" or
4445 dodie "Failed to create temp config";
4446 $minconfig = "$tmpdir/add_config";
4447 }
4448
4449 if (defined($checkout)) {
4450 run_command "git checkout $checkout" or
4451 dodie "failed to checkout $checkout";
4452 }
4453
4454 $no_reboot = 0;
4455
4456 # A test may opt to not reboot the box
4457 if ($reboot_on_success) {
4458 $reboot_success = 1;
4459 }
4460
4461 if ($test_type eq "bisect") {
4462 bisect $i;
4463 next;
4464 } elsif ($test_type eq "config_bisect") {
4465 config_bisect $i;
4466 next;
4467 } elsif ($test_type eq "patchcheck") {
4468 patchcheck $i;
4469 next;
4470 } elsif ($test_type eq "make_min_config") {
4471 make_min_config $i;
4472 next;
4473 } elsif ($test_type eq "make_warnings_file") {
4474 $no_reboot = 1;
4475 make_warnings_file $i;
4476 next;
4477 }
4478
4479 if ($build_type ne "nobuild") {
4480 build $build_type or next;
4481 check_buildlog or next;
4482 }
4483
4484 if ($test_type eq "install") {
4485 get_version;
4486 install;
4487 success $i;
4488 next;
4489 }
4490
4491 if ($test_type ne "build") {
4492 my $failed = 0;
4493 start_monitor_and_install or $failed = 1;
4494
4495 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4496 do_run_test or $failed = 1;
4497 }
4498 end_monitor;
4499 if ($failed) {
4500 print_times;
4501 next;
4502 }
4503 }
4504
4505 print_times;
4506
4507 success $i;
4508}
4509
4510if (defined($final_post_ktest)) {
4511
4512 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4513 run_command $cp_final_post_ktest;
4514}
4515
4516if ($opt{"POWEROFF_ON_SUCCESS"}) {
4517 halt;
4518} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4519 reboot_to_good;
4520} elsif (defined($switch_to_good)) {
4521 # still need to get to the good kernel
4522 run_command $switch_to_good;
4523}
4524
4525doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4526
4527if ($email_when_finished) {
4528 send_email("KTEST: Your test has finished!",
4529 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4530}
4531
4532if (defined($opt{"LOG_FILE"})) {
4533 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4534 close LOG;
4535}
4536
4537exit 0;
4538
4539##
4540# The following are here to standardize tabs/spaces/etc across the most likely editors
4541###
4542
4543# Local Variables:
4544# mode: perl
4545# End:
4546# vim: softtabstop=4
1#!/usr/bin/perl -w
2#
3# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
4# Licensed under the terms of the GNU GPL License version 2
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13
14my $VERSION = "0.2";
15
16$| = 1;
17
18my %opt;
19my %repeat_tests;
20my %repeats;
21
22#default opts
23my %default = (
24 "NUM_TESTS" => 1,
25 "TEST_TYPE" => "build",
26 "BUILD_TYPE" => "randconfig",
27 "MAKE_CMD" => "make",
28 "TIMEOUT" => 120,
29 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
30 "SLEEP_TIME" => 60, # sleep time between tests
31 "BUILD_NOCLEAN" => 0,
32 "REBOOT_ON_ERROR" => 0,
33 "POWEROFF_ON_ERROR" => 0,
34 "REBOOT_ON_SUCCESS" => 1,
35 "POWEROFF_ON_SUCCESS" => 0,
36 "BUILD_OPTIONS" => "",
37 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
38 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
39 "CLEAR_LOG" => 0,
40 "BISECT_MANUAL" => 0,
41 "BISECT_SKIP" => 1,
42 "MIN_CONFIG_TYPE" => "boot",
43 "SUCCESS_LINE" => "login:",
44 "DETECT_TRIPLE_FAULT" => 1,
45 "NO_INSTALL" => 0,
46 "BOOTED_TIMEOUT" => 1,
47 "DIE_ON_FAILURE" => 1,
48 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
49 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
50 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
51 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
52 "STOP_AFTER_SUCCESS" => 10,
53 "STOP_AFTER_FAILURE" => 60,
54 "STOP_TEST_AFTER" => 600,
55
56# required, and we will ask users if they don't have them but we keep the default
57# value something that is common.
58 "REBOOT_TYPE" => "grub",
59 "LOCALVERSION" => "-test",
60 "SSH_USER" => "root",
61 "BUILD_TARGET" => "arch/x86/boot/bzImage",
62 "TARGET_IMAGE" => "/boot/vmlinuz-test",
63
64 "LOG_FILE" => undef,
65 "IGNORE_UNUSED" => 0,
66);
67
68my $ktest_config;
69my $version;
70my $have_version = 0;
71my $machine;
72my $ssh_user;
73my $tmpdir;
74my $builddir;
75my $outputdir;
76my $output_config;
77my $test_type;
78my $build_type;
79my $build_options;
80my $pre_build;
81my $post_build;
82my $pre_build_die;
83my $post_build_die;
84my $reboot_type;
85my $reboot_script;
86my $power_cycle;
87my $reboot;
88my $reboot_on_error;
89my $switch_to_good;
90my $switch_to_test;
91my $poweroff_on_error;
92my $reboot_on_success;
93my $die_on_failure;
94my $powercycle_after_reboot;
95my $poweroff_after_halt;
96my $ssh_exec;
97my $scp_to_target;
98my $scp_to_target_install;
99my $power_off;
100my $grub_menu;
101my $grub_number;
102my $target;
103my $make;
104my $post_install;
105my $no_install;
106my $noclean;
107my $minconfig;
108my $start_minconfig;
109my $start_minconfig_defined;
110my $output_minconfig;
111my $minconfig_type;
112my $use_output_minconfig;
113my $ignore_config;
114my $ignore_errors;
115my $addconfig;
116my $in_bisect = 0;
117my $bisect_bad_commit = "";
118my $reverse_bisect;
119my $bisect_manual;
120my $bisect_skip;
121my $config_bisect_good;
122my $bisect_ret_good;
123my $bisect_ret_bad;
124my $bisect_ret_skip;
125my $bisect_ret_abort;
126my $bisect_ret_default;
127my $in_patchcheck = 0;
128my $run_test;
129my $redirect;
130my $buildlog;
131my $testlog;
132my $dmesg;
133my $monitor_fp;
134my $monitor_pid;
135my $monitor_cnt = 0;
136my $sleep_time;
137my $bisect_sleep_time;
138my $patchcheck_sleep_time;
139my $ignore_warnings;
140my $store_failures;
141my $store_successes;
142my $test_name;
143my $timeout;
144my $booted_timeout;
145my $detect_triplefault;
146my $console;
147my $reboot_success_line;
148my $success_line;
149my $stop_after_success;
150my $stop_after_failure;
151my $stop_test_after;
152my $build_target;
153my $target_image;
154my $checkout;
155my $localversion;
156my $iteration = 0;
157my $successes = 0;
158
159my $bisect_good;
160my $bisect_bad;
161my $bisect_type;
162my $bisect_start;
163my $bisect_replay;
164my $bisect_files;
165my $bisect_reverse;
166my $bisect_check;
167
168my $config_bisect;
169my $config_bisect_type;
170
171my $patchcheck_type;
172my $patchcheck_start;
173my $patchcheck_end;
174
175# set when a test is something other that just building or install
176# which would require more options.
177my $buildonly = 1;
178
179# set when creating a new config
180my $newconfig = 0;
181
182my %entered_configs;
183my %config_help;
184my %variable;
185my %force_config;
186
187# do not force reboots on config problems
188my $no_reboot = 1;
189
190# reboot on success
191my $reboot_success = 0;
192
193my %option_map = (
194 "MACHINE" => \$machine,
195 "SSH_USER" => \$ssh_user,
196 "TMP_DIR" => \$tmpdir,
197 "OUTPUT_DIR" => \$outputdir,
198 "BUILD_DIR" => \$builddir,
199 "TEST_TYPE" => \$test_type,
200 "BUILD_TYPE" => \$build_type,
201 "BUILD_OPTIONS" => \$build_options,
202 "PRE_BUILD" => \$pre_build,
203 "POST_BUILD" => \$post_build,
204 "PRE_BUILD_DIE" => \$pre_build_die,
205 "POST_BUILD_DIE" => \$post_build_die,
206 "POWER_CYCLE" => \$power_cycle,
207 "REBOOT" => \$reboot,
208 "BUILD_NOCLEAN" => \$noclean,
209 "MIN_CONFIG" => \$minconfig,
210 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
211 "START_MIN_CONFIG" => \$start_minconfig,
212 "MIN_CONFIG_TYPE" => \$minconfig_type,
213 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
214 "IGNORE_CONFIG" => \$ignore_config,
215 "TEST" => \$run_test,
216 "ADD_CONFIG" => \$addconfig,
217 "REBOOT_TYPE" => \$reboot_type,
218 "GRUB_MENU" => \$grub_menu,
219 "POST_INSTALL" => \$post_install,
220 "NO_INSTALL" => \$no_install,
221 "REBOOT_SCRIPT" => \$reboot_script,
222 "REBOOT_ON_ERROR" => \$reboot_on_error,
223 "SWITCH_TO_GOOD" => \$switch_to_good,
224 "SWITCH_TO_TEST" => \$switch_to_test,
225 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
226 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
227 "DIE_ON_FAILURE" => \$die_on_failure,
228 "POWER_OFF" => \$power_off,
229 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
230 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
231 "SLEEP_TIME" => \$sleep_time,
232 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
233 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
234 "IGNORE_WARNINGS" => \$ignore_warnings,
235 "IGNORE_ERRORS" => \$ignore_errors,
236 "BISECT_MANUAL" => \$bisect_manual,
237 "BISECT_SKIP" => \$bisect_skip,
238 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
239 "BISECT_RET_GOOD" => \$bisect_ret_good,
240 "BISECT_RET_BAD" => \$bisect_ret_bad,
241 "BISECT_RET_SKIP" => \$bisect_ret_skip,
242 "BISECT_RET_ABORT" => \$bisect_ret_abort,
243 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
244 "STORE_FAILURES" => \$store_failures,
245 "STORE_SUCCESSES" => \$store_successes,
246 "TEST_NAME" => \$test_name,
247 "TIMEOUT" => \$timeout,
248 "BOOTED_TIMEOUT" => \$booted_timeout,
249 "CONSOLE" => \$console,
250 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
251 "SUCCESS_LINE" => \$success_line,
252 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
253 "STOP_AFTER_SUCCESS" => \$stop_after_success,
254 "STOP_AFTER_FAILURE" => \$stop_after_failure,
255 "STOP_TEST_AFTER" => \$stop_test_after,
256 "BUILD_TARGET" => \$build_target,
257 "SSH_EXEC" => \$ssh_exec,
258 "SCP_TO_TARGET" => \$scp_to_target,
259 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
260 "CHECKOUT" => \$checkout,
261 "TARGET_IMAGE" => \$target_image,
262 "LOCALVERSION" => \$localversion,
263
264 "BISECT_GOOD" => \$bisect_good,
265 "BISECT_BAD" => \$bisect_bad,
266 "BISECT_TYPE" => \$bisect_type,
267 "BISECT_START" => \$bisect_start,
268 "BISECT_REPLAY" => \$bisect_replay,
269 "BISECT_FILES" => \$bisect_files,
270 "BISECT_REVERSE" => \$bisect_reverse,
271 "BISECT_CHECK" => \$bisect_check,
272
273 "CONFIG_BISECT" => \$config_bisect,
274 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
275
276 "PATCHCHECK_TYPE" => \$patchcheck_type,
277 "PATCHCHECK_START" => \$patchcheck_start,
278 "PATCHCHECK_END" => \$patchcheck_end,
279);
280
281# Options may be used by other options, record them.
282my %used_options;
283
284# default variables that can be used
285chomp ($variable{"PWD"} = `pwd`);
286
287$config_help{"MACHINE"} = << "EOF"
288 The machine hostname that you will test.
289 For build only tests, it is still needed to differentiate log files.
290EOF
291 ;
292$config_help{"SSH_USER"} = << "EOF"
293 The box is expected to have ssh on normal bootup, provide the user
294 (most likely root, since you need privileged operations)
295EOF
296 ;
297$config_help{"BUILD_DIR"} = << "EOF"
298 The directory that contains the Linux source code (full path).
299 You can use \${PWD} that will be the path where ktest.pl is run, or use
300 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
301EOF
302 ;
303$config_help{"OUTPUT_DIR"} = << "EOF"
304 The directory that the objects will be built (full path).
305 (can not be same as BUILD_DIR)
306 You can use \${PWD} that will be the path where ktest.pl is run, or use
307 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
308EOF
309 ;
310$config_help{"BUILD_TARGET"} = << "EOF"
311 The location of the compiled file to copy to the target.
312 (relative to OUTPUT_DIR)
313EOF
314 ;
315$config_help{"BUILD_OPTIONS"} = << "EOF"
316 Options to add to \"make\" when building.
317 i.e. -j20
318EOF
319 ;
320$config_help{"TARGET_IMAGE"} = << "EOF"
321 The place to put your image on the test machine.
322EOF
323 ;
324$config_help{"POWER_CYCLE"} = << "EOF"
325 A script or command to reboot the box.
326
327 Here is a digital loggers power switch example
328 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
329
330 Here is an example to reboot a virtual box on the current host
331 with the name "Guest".
332 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
333EOF
334 ;
335$config_help{"CONSOLE"} = << "EOF"
336 The script or command that reads the console
337
338 If you use ttywatch server, something like the following would work.
339CONSOLE = nc -d localhost 3001
340
341 For a virtual machine with guest name "Guest".
342CONSOLE = virsh console Guest
343EOF
344 ;
345$config_help{"LOCALVERSION"} = << "EOF"
346 Required version ending to differentiate the test
347 from other linux builds on the system.
348EOF
349 ;
350$config_help{"REBOOT_TYPE"} = << "EOF"
351 Way to reboot the box to the test kernel.
352 Only valid options so far are "grub" and "script".
353
354 If you specify grub, it will assume grub version 1
355 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
356 and select that target to reboot to the kernel. If this is not
357 your setup, then specify "script" and have a command or script
358 specified in REBOOT_SCRIPT to boot to the target.
359
360 The entry in /boot/grub/menu.lst must be entered in manually.
361 The test will not modify that file.
362EOF
363 ;
364$config_help{"GRUB_MENU"} = << "EOF"
365 The grub title name for the test kernel to boot
366 (Only mandatory if REBOOT_TYPE = grub)
367
368 Note, ktest.pl will not update the grub menu.lst, you need to
369 manually add an option for the test. ktest.pl will search
370 the grub menu.lst for this option to find what kernel to
371 reboot into.
372
373 For example, if in the /boot/grub/menu.lst the test kernel title has:
374 title Test Kernel
375 kernel vmlinuz-test
376 GRUB_MENU = Test Kernel
377EOF
378 ;
379$config_help{"REBOOT_SCRIPT"} = << "EOF"
380 A script to reboot the target into the test kernel
381 (Only mandatory if REBOOT_TYPE = script)
382EOF
383 ;
384
385sub read_prompt {
386 my ($cancel, $prompt) = @_;
387
388 my $ans;
389
390 for (;;) {
391 if ($cancel) {
392 print "$prompt [y/n/C] ";
393 } else {
394 print "$prompt [Y/n] ";
395 }
396 $ans = <STDIN>;
397 chomp $ans;
398 if ($ans =~ /^\s*$/) {
399 if ($cancel) {
400 $ans = "c";
401 } else {
402 $ans = "y";
403 }
404 }
405 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
406 if ($cancel) {
407 last if ($ans =~ /^c$/i);
408 print "Please answer either 'y', 'n' or 'c'.\n";
409 } else {
410 print "Please answer either 'y' or 'n'.\n";
411 }
412 }
413 if ($ans =~ /^c/i) {
414 exit;
415 }
416 if ($ans !~ /^y$/i) {
417 return 0;
418 }
419 return 1;
420}
421
422sub read_yn {
423 my ($prompt) = @_;
424
425 return read_prompt 0, $prompt;
426}
427
428sub read_ync {
429 my ($prompt) = @_;
430
431 return read_prompt 1, $prompt;
432}
433
434sub get_ktest_config {
435 my ($config) = @_;
436 my $ans;
437
438 return if (defined($opt{$config}));
439
440 if (defined($config_help{$config})) {
441 print "\n";
442 print $config_help{$config};
443 }
444
445 for (;;) {
446 print "$config = ";
447 if (defined($default{$config}) && length($default{$config})) {
448 print "\[$default{$config}\] ";
449 }
450 $ans = <STDIN>;
451 $ans =~ s/^\s*(.*\S)\s*$/$1/;
452 if ($ans =~ /^\s*$/) {
453 if ($default{$config}) {
454 $ans = $default{$config};
455 } else {
456 print "Your answer can not be blank\n";
457 next;
458 }
459 }
460 $entered_configs{$config} = ${ans};
461 last;
462 }
463}
464
465sub get_ktest_configs {
466 get_ktest_config("MACHINE");
467 get_ktest_config("BUILD_DIR");
468 get_ktest_config("OUTPUT_DIR");
469
470 if ($newconfig) {
471 get_ktest_config("BUILD_OPTIONS");
472 }
473
474 # options required for other than just building a kernel
475 if (!$buildonly) {
476 get_ktest_config("POWER_CYCLE");
477 get_ktest_config("CONSOLE");
478 }
479
480 # options required for install and more
481 if ($buildonly != 1) {
482 get_ktest_config("SSH_USER");
483 get_ktest_config("BUILD_TARGET");
484 get_ktest_config("TARGET_IMAGE");
485 }
486
487 get_ktest_config("LOCALVERSION");
488
489 return if ($buildonly);
490
491 my $rtype = $opt{"REBOOT_TYPE"};
492
493 if (!defined($rtype)) {
494 if (!defined($opt{"GRUB_MENU"})) {
495 get_ktest_config("REBOOT_TYPE");
496 $rtype = $entered_configs{"REBOOT_TYPE"};
497 } else {
498 $rtype = "grub";
499 }
500 }
501
502 if ($rtype eq "grub") {
503 get_ktest_config("GRUB_MENU");
504 }
505}
506
507sub process_variables {
508 my ($value, $remove_undef) = @_;
509 my $retval = "";
510
511 # We want to check for '\', and it is just easier
512 # to check the previous characet of '$' and not need
513 # to worry if '$' is the first character. By adding
514 # a space to $value, we can just check [^\\]\$ and
515 # it will still work.
516 $value = " $value";
517
518 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
519 my $begin = $1;
520 my $var = $2;
521 my $end = $3;
522 # append beginning of value to retval
523 $retval = "$retval$begin";
524 if (defined($variable{$var})) {
525 $retval = "$retval$variable{$var}";
526 } elsif (defined($remove_undef) && $remove_undef) {
527 # for if statements, any variable that is not defined,
528 # we simple convert to 0
529 $retval = "${retval}0";
530 } else {
531 # put back the origin piece.
532 $retval = "$retval\$\{$var\}";
533 # This could be an option that is used later, save
534 # it so we don't warn if this option is not one of
535 # ktests options.
536 $used_options{$var} = 1;
537 }
538 $value = $end;
539 }
540 $retval = "$retval$value";
541
542 # remove the space added in the beginning
543 $retval =~ s/ //;
544
545 return "$retval"
546}
547
548sub set_value {
549 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
550
551 my $prvalue = process_variables($rvalue);
552
553 if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
554 # Note if a test is something other than build, then we
555 # will need other manditory options.
556 if ($prvalue ne "install") {
557 $buildonly = 0;
558 } else {
559 # install still limits some manditory options.
560 $buildonly = 2;
561 }
562 }
563
564 if (defined($opt{$lvalue})) {
565 if (!$override || defined(${$overrides}{$lvalue})) {
566 my $extra = "";
567 if ($override) {
568 $extra = "In the same override section!\n";
569 }
570 die "$name: $.: Option $lvalue defined more than once!\n$extra";
571 }
572 ${$overrides}{$lvalue} = $prvalue;
573 }
574 if ($rvalue =~ /^\s*$/) {
575 delete $opt{$lvalue};
576 } else {
577 $opt{$lvalue} = $prvalue;
578 }
579}
580
581sub set_variable {
582 my ($lvalue, $rvalue) = @_;
583
584 if ($rvalue =~ /^\s*$/) {
585 delete $variable{$lvalue};
586 } else {
587 $rvalue = process_variables($rvalue);
588 $variable{$lvalue} = $rvalue;
589 }
590}
591
592sub process_compare {
593 my ($lval, $cmp, $rval) = @_;
594
595 # remove whitespace
596
597 $lval =~ s/^\s*//;
598 $lval =~ s/\s*$//;
599
600 $rval =~ s/^\s*//;
601 $rval =~ s/\s*$//;
602
603 if ($cmp eq "==") {
604 return $lval eq $rval;
605 } elsif ($cmp eq "!=") {
606 return $lval ne $rval;
607 }
608
609 my $statement = "$lval $cmp $rval";
610 my $ret = eval $statement;
611
612 # $@ stores error of eval
613 if ($@) {
614 return -1;
615 }
616
617 return $ret;
618}
619
620sub value_defined {
621 my ($val) = @_;
622
623 return defined($variable{$2}) ||
624 defined($opt{$2});
625}
626
627my $d = 0;
628sub process_expression {
629 my ($name, $val) = @_;
630
631 my $c = $d++;
632
633 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
634 my $express = $1;
635
636 if (process_expression($name, $express)) {
637 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
638 } else {
639 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
640 }
641 }
642
643 $d--;
644 my $OR = "\\|\\|";
645 my $AND = "\\&\\&";
646
647 while ($val =~ s/^(.*?)($OR|$AND)//) {
648 my $express = $1;
649 my $op = $2;
650
651 if (process_expression($name, $express)) {
652 if ($op eq "||") {
653 return 1;
654 }
655 } else {
656 if ($op eq "&&") {
657 return 0;
658 }
659 }
660 }
661
662 if ($val =~ /(.*)(==|\!=|>=|<=|>|<)(.*)/) {
663 my $ret = process_compare($1, $2, $3);
664 if ($ret < 0) {
665 die "$name: $.: Unable to process comparison\n";
666 }
667 return $ret;
668 }
669
670 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
671 if (defined $1) {
672 return !value_defined($2);
673 } else {
674 return value_defined($2);
675 }
676 }
677
678 if ($val =~ /^\s*0\s*$/) {
679 return 0;
680 } elsif ($val =~ /^\s*\d+\s*$/) {
681 return 1;
682 }
683
684 die ("$name: $.: Undefined content $val in if statement\n");
685}
686
687sub process_if {
688 my ($name, $value) = @_;
689
690 # Convert variables and replace undefined ones with 0
691 my $val = process_variables($value, 1);
692 my $ret = process_expression $name, $val;
693
694 return $ret;
695}
696
697sub __read_config {
698 my ($config, $current_test_num) = @_;
699
700 my $in;
701 open($in, $config) || die "can't read file $config";
702
703 my $name = $config;
704 $name =~ s,.*/(.*),$1,;
705
706 my $test_num = $$current_test_num;
707 my $default = 1;
708 my $repeat = 1;
709 my $num_tests_set = 0;
710 my $skip = 0;
711 my $rest;
712 my $line;
713 my $test_case = 0;
714 my $if = 0;
715 my $if_set = 0;
716 my $override = 0;
717
718 my %overrides;
719
720 while (<$in>) {
721
722 # ignore blank lines and comments
723 next if (/^\s*$/ || /\s*\#/);
724
725 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
726
727 my $type = $1;
728 $rest = $2;
729 $line = $2;
730
731 my $old_test_num;
732 my $old_repeat;
733 $override = 0;
734
735 if ($type eq "TEST_START") {
736
737 if ($num_tests_set) {
738 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
739 }
740
741 $old_test_num = $test_num;
742 $old_repeat = $repeat;
743
744 $test_num += $repeat;
745 $default = 0;
746 $repeat = 1;
747 } else {
748 $default = 1;
749 }
750
751 # If SKIP is anywhere in the line, the command will be skipped
752 if ($rest =~ s/\s+SKIP\b//) {
753 $skip = 1;
754 } else {
755 $test_case = 1;
756 $skip = 0;
757 }
758
759 if ($rest =~ s/\sELSE\b//) {
760 if (!$if) {
761 die "$name: $.: ELSE found with out matching IF section\n$_";
762 }
763 $if = 0;
764
765 if ($if_set) {
766 $skip = 1;
767 } else {
768 $skip = 0;
769 }
770 }
771
772 if ($rest =~ s/\sIF\s+(.*)//) {
773 if (process_if($name, $1)) {
774 $if_set = 1;
775 } else {
776 $skip = 1;
777 }
778 $if = 1;
779 } else {
780 $if = 0;
781 $if_set = 0;
782 }
783
784 if (!$skip) {
785 if ($type eq "TEST_START") {
786 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
787 $repeat = $1;
788 $repeat_tests{"$test_num"} = $repeat;
789 }
790 } elsif ($rest =~ s/\sOVERRIDE\b//) {
791 # DEFAULT only
792 $override = 1;
793 # Clear previous overrides
794 %overrides = ();
795 }
796 }
797
798 if (!$skip && $rest !~ /^\s*$/) {
799 die "$name: $.: Gargbage found after $type\n$_";
800 }
801
802 if ($skip && $type eq "TEST_START") {
803 $test_num = $old_test_num;
804 $repeat = $old_repeat;
805 }
806
807 } elsif (/^\s*ELSE\b(.*)$/) {
808 if (!$if) {
809 die "$name: $.: ELSE found with out matching IF section\n$_";
810 }
811 $rest = $1;
812 if ($if_set) {
813 $skip = 1;
814 $rest = "";
815 } else {
816 $skip = 0;
817
818 if ($rest =~ /\sIF\s+(.*)/) {
819 # May be a ELSE IF section.
820 if (!process_if($name, $1)) {
821 $skip = 1;
822 }
823 $rest = "";
824 } else {
825 $if = 0;
826 }
827 }
828
829 if ($rest !~ /^\s*$/) {
830 die "$name: $.: Gargbage found after DEFAULTS\n$_";
831 }
832
833 } elsif (/^\s*INCLUDE\s+(\S+)/) {
834
835 next if ($skip);
836
837 if (!$default) {
838 die "$name: $.: INCLUDE can only be done in default sections\n$_";
839 }
840
841 my $file = process_variables($1);
842
843 if ($file !~ m,^/,) {
844 # check the path of the config file first
845 if ($config =~ m,(.*)/,) {
846 if (-f "$1/$file") {
847 $file = "$1/$file";
848 }
849 }
850 }
851
852 if ( ! -r $file ) {
853 die "$name: $.: Can't read file $file\n$_";
854 }
855
856 if (__read_config($file, \$test_num)) {
857 $test_case = 1;
858 }
859
860 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
861
862 next if ($skip);
863
864 my $lvalue = $1;
865 my $rvalue = $2;
866
867 if (!$default &&
868 ($lvalue eq "NUM_TESTS" ||
869 $lvalue eq "LOG_FILE" ||
870 $lvalue eq "CLEAR_LOG")) {
871 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
872 }
873
874 if ($lvalue eq "NUM_TESTS") {
875 if ($test_num) {
876 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
877 }
878 if (!$default) {
879 die "$name: $.: NUM_TESTS must be set in default section\n";
880 }
881 $num_tests_set = 1;
882 }
883
884 if ($default || $lvalue =~ /\[\d+\]$/) {
885 set_value($lvalue, $rvalue, $override, \%overrides, $name);
886 } else {
887 my $val = "$lvalue\[$test_num\]";
888 set_value($val, $rvalue, $override, \%overrides, $name);
889
890 if ($repeat > 1) {
891 $repeats{$val} = $repeat;
892 }
893 }
894 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
895 next if ($skip);
896
897 my $lvalue = $1;
898 my $rvalue = $2;
899
900 # process config variables.
901 # Config variables are only active while reading the
902 # config and can be defined anywhere. They also ignore
903 # TEST_START and DEFAULTS, but are skipped if they are in
904 # on of these sections that have SKIP defined.
905 # The save variable can be
906 # defined multiple times and the new one simply overrides
907 # the prevous one.
908 set_variable($lvalue, $rvalue);
909
910 } else {
911 die "$name: $.: Garbage found in config\n$_";
912 }
913 }
914
915 if ($test_num) {
916 $test_num += $repeat - 1;
917 $opt{"NUM_TESTS"} = $test_num;
918 }
919
920 close($in);
921
922 $$current_test_num = $test_num;
923
924 return $test_case;
925}
926
927sub get_test_case {
928 print "What test case would you like to run?\n";
929 print " (build, install or boot)\n";
930 print " Other tests are available but require editing the config file\n";
931 my $ans = <STDIN>;
932 chomp $ans;
933 $default{"TEST_TYPE"} = $ans;
934}
935
936sub read_config {
937 my ($config) = @_;
938
939 my $test_case;
940 my $test_num = 0;
941
942 $test_case = __read_config $config, \$test_num;
943
944 # make sure we have all mandatory configs
945 get_ktest_configs;
946
947 # was a test specified?
948 if (!$test_case) {
949 print "No test case specified.\n";
950 get_test_case;
951 }
952
953 # set any defaults
954
955 foreach my $default (keys %default) {
956 if (!defined($opt{$default})) {
957 $opt{$default} = $default{$default};
958 }
959 }
960
961 if ($opt{"IGNORE_UNUSED"} == 1) {
962 return;
963 }
964
965 my %not_used;
966
967 # check if there are any stragglers (typos?)
968 foreach my $option (keys %opt) {
969 my $op = $option;
970 # remove per test labels.
971 $op =~ s/\[.*\]//;
972 if (!exists($option_map{$op}) &&
973 !exists($default{$op}) &&
974 !exists($used_options{$op})) {
975 $not_used{$op} = 1;
976 }
977 }
978
979 if (%not_used) {
980 my $s = "s are";
981 $s = " is" if (keys %not_used == 1);
982 print "The following option$s not used; could be a typo:\n";
983 foreach my $option (keys %not_used) {
984 print "$option\n";
985 }
986 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
987 if (!read_yn "Do you want to continue?") {
988 exit -1;
989 }
990 }
991}
992
993sub __eval_option {
994 my ($option, $i) = @_;
995
996 # Add space to evaluate the character before $
997 $option = " $option";
998 my $retval = "";
999 my $repeated = 0;
1000 my $parent = 0;
1001
1002 foreach my $test (keys %repeat_tests) {
1003 if ($i >= $test &&
1004 $i < $test + $repeat_tests{$test}) {
1005
1006 $repeated = 1;
1007 $parent = $test;
1008 last;
1009 }
1010 }
1011
1012 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1013 my $start = $1;
1014 my $var = $2;
1015 my $end = $3;
1016
1017 # Append beginning of line
1018 $retval = "$retval$start";
1019
1020 # If the iteration option OPT[$i] exists, then use that.
1021 # otherwise see if the default OPT (without [$i]) exists.
1022
1023 my $o = "$var\[$i\]";
1024 my $parento = "$var\[$parent\]";
1025
1026 if (defined($opt{$o})) {
1027 $o = $opt{$o};
1028 $retval = "$retval$o";
1029 } elsif ($repeated && defined($opt{$parento})) {
1030 $o = $opt{$parento};
1031 $retval = "$retval$o";
1032 } elsif (defined($opt{$var})) {
1033 $o = $opt{$var};
1034 $retval = "$retval$o";
1035 } else {
1036 $retval = "$retval\$\{$var\}";
1037 }
1038
1039 $option = $end;
1040 }
1041
1042 $retval = "$retval$option";
1043
1044 $retval =~ s/^ //;
1045
1046 return $retval;
1047}
1048
1049sub eval_option {
1050 my ($option, $i) = @_;
1051
1052 my $prev = "";
1053
1054 # Since an option can evaluate to another option,
1055 # keep iterating until we do not evaluate any more
1056 # options.
1057 my $r = 0;
1058 while ($prev ne $option) {
1059 # Check for recursive evaluations.
1060 # 100 deep should be more than enough.
1061 if ($r++ > 100) {
1062 die "Over 100 evaluations accurred with $option\n" .
1063 "Check for recursive variables\n";
1064 }
1065 $prev = $option;
1066 $option = __eval_option($option, $i);
1067 }
1068
1069 return $option;
1070}
1071
1072sub _logit {
1073 if (defined($opt{"LOG_FILE"})) {
1074 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
1075 print OUT @_;
1076 close(OUT);
1077 }
1078}
1079
1080sub logit {
1081 if (defined($opt{"LOG_FILE"})) {
1082 _logit @_;
1083 } else {
1084 print @_;
1085 }
1086}
1087
1088sub doprint {
1089 print @_;
1090 _logit @_;
1091}
1092
1093sub run_command;
1094sub start_monitor;
1095sub end_monitor;
1096sub wait_for_monitor;
1097
1098sub reboot {
1099 my ($time) = @_;
1100
1101 if (defined($time)) {
1102 start_monitor;
1103 # flush out current monitor
1104 # May contain the reboot success line
1105 wait_for_monitor 1;
1106 }
1107
1108 # try to reboot normally
1109 if (run_command $reboot) {
1110 if (defined($powercycle_after_reboot)) {
1111 sleep $powercycle_after_reboot;
1112 run_command "$power_cycle";
1113 }
1114 } else {
1115 # nope? power cycle it.
1116 run_command "$power_cycle";
1117 }
1118
1119 if (defined($time)) {
1120 wait_for_monitor($time, $reboot_success_line);
1121 end_monitor;
1122 }
1123}
1124
1125sub reboot_to_good {
1126 my ($time) = @_;
1127
1128 if (defined($switch_to_good)) {
1129 run_command $switch_to_good;
1130 }
1131
1132 reboot $time;
1133}
1134
1135sub do_not_reboot {
1136 my $i = $iteration;
1137
1138 return $test_type eq "build" || $no_reboot ||
1139 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1140 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
1141}
1142
1143sub dodie {
1144 doprint "CRITICAL FAILURE... ", @_, "\n";
1145
1146 my $i = $iteration;
1147
1148 if ($reboot_on_error && !do_not_reboot) {
1149
1150 doprint "REBOOTING\n";
1151 reboot_to_good;
1152
1153 } elsif ($poweroff_on_error && defined($power_off)) {
1154 doprint "POWERING OFF\n";
1155 `$power_off`;
1156 }
1157
1158 if (defined($opt{"LOG_FILE"})) {
1159 print " See $opt{LOG_FILE} for more info.\n";
1160 }
1161
1162 die @_, "\n";
1163}
1164
1165sub open_console {
1166 my ($fp) = @_;
1167
1168 my $flags;
1169
1170 my $pid = open($fp, "$console|") or
1171 dodie "Can't open console $console";
1172
1173 $flags = fcntl($fp, F_GETFL, 0) or
1174 dodie "Can't get flags for the socket: $!";
1175 $flags = fcntl($fp, F_SETFL, $flags | O_NONBLOCK) or
1176 dodie "Can't set flags for the socket: $!";
1177
1178 return $pid;
1179}
1180
1181sub close_console {
1182 my ($fp, $pid) = @_;
1183
1184 doprint "kill child process $pid\n";
1185 kill 2, $pid;
1186
1187 print "closing!\n";
1188 close($fp);
1189}
1190
1191sub start_monitor {
1192 if ($monitor_cnt++) {
1193 return;
1194 }
1195 $monitor_fp = \*MONFD;
1196 $monitor_pid = open_console $monitor_fp;
1197
1198 return;
1199
1200 open(MONFD, "Stop perl from warning about single use of MONFD");
1201}
1202
1203sub end_monitor {
1204 if (--$monitor_cnt) {
1205 return;
1206 }
1207 close_console($monitor_fp, $monitor_pid);
1208}
1209
1210sub wait_for_monitor {
1211 my ($time, $stop) = @_;
1212 my $full_line = "";
1213 my $line;
1214 my $booted = 0;
1215
1216 doprint "** Wait for monitor to settle down **\n";
1217
1218 # read the monitor and wait for the system to calm down
1219 while (!$booted) {
1220 $line = wait_for_input($monitor_fp, $time);
1221 last if (!defined($line));
1222 print "$line";
1223 $full_line .= $line;
1224
1225 if (defined($stop) && $full_line =~ /$stop/) {
1226 doprint "wait for monitor detected $stop\n";
1227 $booted = 1;
1228 }
1229
1230 if ($line =~ /\n/) {
1231 $full_line = "";
1232 }
1233 }
1234 print "** Monitor flushed **\n";
1235}
1236
1237sub save_logs {
1238 my ($result, $basedir) = @_;
1239 my @t = localtime;
1240 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1241 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1242
1243 my $type = $build_type;
1244 if ($type =~ /useconfig/) {
1245 $type = "useconfig";
1246 }
1247
1248 my $dir = "$machine-$test_type-$type-$result-$date";
1249
1250 $dir = "$basedir/$dir";
1251
1252 if (!-d $dir) {
1253 mkpath($dir) or
1254 die "can't create $dir";
1255 }
1256
1257 my %files = (
1258 "config" => $output_config,
1259 "buildlog" => $buildlog,
1260 "dmesg" => $dmesg,
1261 "testlog" => $testlog,
1262 );
1263
1264 while (my ($name, $source) = each(%files)) {
1265 if (-f "$source") {
1266 cp "$source", "$dir/$name" or
1267 die "failed to copy $source";
1268 }
1269 }
1270
1271 doprint "*** Saved info to $dir ***\n";
1272}
1273
1274sub fail {
1275
1276 if ($die_on_failure) {
1277 dodie @_;
1278 }
1279
1280 doprint "FAILED\n";
1281
1282 my $i = $iteration;
1283
1284 # no need to reboot for just building.
1285 if (!do_not_reboot) {
1286 doprint "REBOOTING\n";
1287 reboot_to_good $sleep_time;
1288 }
1289
1290 my $name = "";
1291
1292 if (defined($test_name)) {
1293 $name = " ($test_name)";
1294 }
1295
1296 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1297 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1298 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1299 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1300 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1301
1302 if (defined($store_failures)) {
1303 save_logs "fail", $store_failures;
1304 }
1305
1306 return 1;
1307}
1308
1309sub run_command {
1310 my ($command) = @_;
1311 my $dolog = 0;
1312 my $dord = 0;
1313 my $pid;
1314
1315 $command =~ s/\$SSH_USER/$ssh_user/g;
1316 $command =~ s/\$MACHINE/$machine/g;
1317
1318 doprint("$command ... ");
1319
1320 $pid = open(CMD, "$command 2>&1 |") or
1321 (fail "unable to exec $command" and return 0);
1322
1323 if (defined($opt{"LOG_FILE"})) {
1324 open(LOG, ">>$opt{LOG_FILE}") or
1325 dodie "failed to write to log";
1326 $dolog = 1;
1327 }
1328
1329 if (defined($redirect)) {
1330 open (RD, ">$redirect") or
1331 dodie "failed to write to redirect $redirect";
1332 $dord = 1;
1333 }
1334
1335 while (<CMD>) {
1336 print LOG if ($dolog);
1337 print RD if ($dord);
1338 }
1339
1340 waitpid($pid, 0);
1341 my $failed = $?;
1342
1343 close(CMD);
1344 close(LOG) if ($dolog);
1345 close(RD) if ($dord);
1346
1347 if ($failed) {
1348 doprint "FAILED!\n";
1349 } else {
1350 doprint "SUCCESS\n";
1351 }
1352
1353 return !$failed;
1354}
1355
1356sub run_ssh {
1357 my ($cmd) = @_;
1358 my $cp_exec = $ssh_exec;
1359
1360 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1361 return run_command "$cp_exec";
1362}
1363
1364sub run_scp {
1365 my ($src, $dst, $cp_scp) = @_;
1366
1367 $cp_scp =~ s/\$SRC_FILE/$src/g;
1368 $cp_scp =~ s/\$DST_FILE/$dst/g;
1369
1370 return run_command "$cp_scp";
1371}
1372
1373sub run_scp_install {
1374 my ($src, $dst) = @_;
1375
1376 my $cp_scp = $scp_to_target_install;
1377
1378 return run_scp($src, $dst, $cp_scp);
1379}
1380
1381sub run_scp_mod {
1382 my ($src, $dst) = @_;
1383
1384 my $cp_scp = $scp_to_target;
1385
1386 return run_scp($src, $dst, $cp_scp);
1387}
1388
1389sub get_grub_index {
1390
1391 if ($reboot_type ne "grub") {
1392 return;
1393 }
1394 return if (defined($grub_number));
1395
1396 doprint "Find grub menu ... ";
1397 $grub_number = -1;
1398
1399 my $ssh_grub = $ssh_exec;
1400 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1401
1402 open(IN, "$ssh_grub |")
1403 or die "unable to get menu.lst";
1404
1405 my $found = 0;
1406
1407 while (<IN>) {
1408 if (/^\s*title\s+$grub_menu\s*$/) {
1409 $grub_number++;
1410 $found = 1;
1411 last;
1412 } elsif (/^\s*title\s/) {
1413 $grub_number++;
1414 }
1415 }
1416 close(IN);
1417
1418 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1419 if (!$found);
1420 doprint "$grub_number\n";
1421}
1422
1423sub wait_for_input
1424{
1425 my ($fp, $time) = @_;
1426 my $rin;
1427 my $ready;
1428 my $line;
1429 my $ch;
1430
1431 if (!defined($time)) {
1432 $time = $timeout;
1433 }
1434
1435 $rin = '';
1436 vec($rin, fileno($fp), 1) = 1;
1437 $ready = select($rin, undef, undef, $time);
1438
1439 $line = "";
1440
1441 # try to read one char at a time
1442 while (sysread $fp, $ch, 1) {
1443 $line .= $ch;
1444 last if ($ch eq "\n");
1445 }
1446
1447 if (!length($line)) {
1448 return undef;
1449 }
1450
1451 return $line;
1452}
1453
1454sub reboot_to {
1455 if (defined($switch_to_test)) {
1456 run_command $switch_to_test;
1457 }
1458
1459 if ($reboot_type eq "grub") {
1460 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1461 } elsif (defined $reboot_script) {
1462 run_command "$reboot_script";
1463 }
1464 reboot;
1465}
1466
1467sub get_sha1 {
1468 my ($commit) = @_;
1469
1470 doprint "git rev-list --max-count=1 $commit ... ";
1471 my $sha1 = `git rev-list --max-count=1 $commit`;
1472 my $ret = $?;
1473
1474 logit $sha1;
1475
1476 if ($ret) {
1477 doprint "FAILED\n";
1478 dodie "Failed to get git $commit";
1479 }
1480
1481 print "SUCCESS\n";
1482
1483 chomp $sha1;
1484
1485 return $sha1;
1486}
1487
1488sub monitor {
1489 my $booted = 0;
1490 my $bug = 0;
1491 my $bug_ignored = 0;
1492 my $skip_call_trace = 0;
1493 my $loops;
1494
1495 wait_for_monitor 5;
1496
1497 my $line;
1498 my $full_line = "";
1499
1500 open(DMESG, "> $dmesg") or
1501 die "unable to write to $dmesg";
1502
1503 reboot_to;
1504
1505 my $success_start;
1506 my $failure_start;
1507 my $monitor_start = time;
1508 my $done = 0;
1509 my $version_found = 0;
1510
1511 while (!$done) {
1512
1513 if ($bug && defined($stop_after_failure) &&
1514 $stop_after_failure >= 0) {
1515 my $time = $stop_after_failure - (time - $failure_start);
1516 $line = wait_for_input($monitor_fp, $time);
1517 if (!defined($line)) {
1518 doprint "bug timed out after $booted_timeout seconds\n";
1519 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1520 last;
1521 }
1522 } elsif ($booted) {
1523 $line = wait_for_input($monitor_fp, $booted_timeout);
1524 if (!defined($line)) {
1525 my $s = $booted_timeout == 1 ? "" : "s";
1526 doprint "Successful boot found: break after $booted_timeout second$s\n";
1527 last;
1528 }
1529 } else {
1530 $line = wait_for_input($monitor_fp);
1531 if (!defined($line)) {
1532 my $s = $timeout == 1 ? "" : "s";
1533 doprint "Timed out after $timeout second$s\n";
1534 last;
1535 }
1536 }
1537
1538 doprint $line;
1539 print DMESG $line;
1540
1541 # we are not guaranteed to get a full line
1542 $full_line .= $line;
1543
1544 if ($full_line =~ /$success_line/) {
1545 $booted = 1;
1546 $success_start = time;
1547 }
1548
1549 if ($booted && defined($stop_after_success) &&
1550 $stop_after_success >= 0) {
1551 my $now = time;
1552 if ($now - $success_start >= $stop_after_success) {
1553 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1554 last;
1555 }
1556 }
1557
1558 if ($full_line =~ /\[ backtrace testing \]/) {
1559 $skip_call_trace = 1;
1560 }
1561
1562 if ($full_line =~ /call trace:/i) {
1563 if (!$bug && !$skip_call_trace) {
1564 if ($ignore_errors) {
1565 $bug_ignored = 1;
1566 } else {
1567 $bug = 1;
1568 $failure_start = time;
1569 }
1570 }
1571 }
1572
1573 if ($bug && defined($stop_after_failure) &&
1574 $stop_after_failure >= 0) {
1575 my $now = time;
1576 if ($now - $failure_start >= $stop_after_failure) {
1577 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1578 last;
1579 }
1580 }
1581
1582 if ($full_line =~ /\[ end of backtrace testing \]/) {
1583 $skip_call_trace = 0;
1584 }
1585
1586 if ($full_line =~ /Kernel panic -/) {
1587 $failure_start = time;
1588 $bug = 1;
1589 }
1590
1591 # Detect triple faults by testing the banner
1592 if ($full_line =~ /\bLinux version (\S+).*\n/) {
1593 if ($1 eq $version) {
1594 $version_found = 1;
1595 } elsif ($version_found && $detect_triplefault) {
1596 # We already booted into the kernel we are testing,
1597 # but now we booted into another kernel?
1598 # Consider this a triple fault.
1599 doprint "Aleady booted in Linux kernel $version, but now\n";
1600 doprint "we booted into Linux kernel $1.\n";
1601 doprint "Assuming that this is a triple fault.\n";
1602 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
1603 last;
1604 }
1605 }
1606
1607 if ($line =~ /\n/) {
1608 $full_line = "";
1609 }
1610
1611 if ($stop_test_after > 0 && !$booted && !$bug) {
1612 if (time - $monitor_start > $stop_test_after) {
1613 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
1614 $done = 1;
1615 }
1616 }
1617 }
1618
1619 close(DMESG);
1620
1621 if ($bug) {
1622 return 0 if ($in_bisect);
1623 fail "failed - got a bug report" and return 0;
1624 }
1625
1626 if (!$booted) {
1627 return 0 if ($in_bisect);
1628 fail "failed - never got a boot prompt." and return 0;
1629 }
1630
1631 if ($bug_ignored) {
1632 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
1633 }
1634
1635 return 1;
1636}
1637
1638sub eval_kernel_version {
1639 my ($option) = @_;
1640
1641 $option =~ s/\$KERNEL_VERSION/$version/g;
1642
1643 return $option;
1644}
1645
1646sub do_post_install {
1647
1648 return if (!defined($post_install));
1649
1650 my $cp_post_install = eval_kernel_version $post_install;
1651 run_command "$cp_post_install" or
1652 dodie "Failed to run post install";
1653}
1654
1655sub install {
1656
1657 return if ($no_install);
1658
1659 my $cp_target = eval_kernel_version $target_image;
1660
1661 run_scp_install "$outputdir/$build_target", "$cp_target" or
1662 dodie "failed to copy image";
1663
1664 my $install_mods = 0;
1665
1666 # should we process modules?
1667 $install_mods = 0;
1668 open(IN, "$output_config") or dodie("Can't read config file");
1669 while (<IN>) {
1670 if (/CONFIG_MODULES(=y)?/) {
1671 $install_mods = 1 if (defined($1));
1672 last;
1673 }
1674 }
1675 close(IN);
1676
1677 if (!$install_mods) {
1678 do_post_install;
1679 doprint "No modules needed\n";
1680 return;
1681 }
1682
1683 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
1684 dodie "Failed to install modules";
1685
1686 my $modlib = "/lib/modules/$version";
1687 my $modtar = "ktest-mods.tar.bz2";
1688
1689 run_ssh "rm -rf $modlib" or
1690 dodie "failed to remove old mods: $modlib";
1691
1692 # would be nice if scp -r did not follow symbolic links
1693 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
1694 dodie "making tarball";
1695
1696 run_scp_mod "$tmpdir/$modtar", "/tmp" or
1697 dodie "failed to copy modules";
1698
1699 unlink "$tmpdir/$modtar";
1700
1701 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
1702 dodie "failed to tar modules";
1703
1704 run_ssh "rm -f /tmp/$modtar";
1705
1706 do_post_install;
1707}
1708
1709sub get_version {
1710 # get the release name
1711 return if ($have_version);
1712 doprint "$make kernelrelease ... ";
1713 $version = `$make kernelrelease | tail -1`;
1714 chomp($version);
1715 doprint "$version\n";
1716 $have_version = 1;
1717}
1718
1719sub start_monitor_and_boot {
1720 # Make sure the stable kernel has finished booting
1721 start_monitor;
1722 wait_for_monitor 5;
1723 end_monitor;
1724
1725 get_grub_index;
1726 get_version;
1727 install;
1728
1729 start_monitor;
1730 return monitor;
1731}
1732
1733sub check_buildlog {
1734 my ($patch) = @_;
1735
1736 my @files = `git show $patch | diffstat -l`;
1737
1738 open(IN, "git show $patch |") or
1739 dodie "failed to show $patch";
1740 while (<IN>) {
1741 if (m,^--- a/(.*),) {
1742 chomp $1;
1743 $files[$#files] = $1;
1744 }
1745 }
1746 close(IN);
1747
1748 open(IN, $buildlog) or dodie "Can't open $buildlog";
1749 while (<IN>) {
1750 if (/^\s*(.*?):.*(warning|error)/) {
1751 my $err = $1;
1752 foreach my $file (@files) {
1753 my $fullpath = "$builddir/$file";
1754 if ($file eq $err || $fullpath eq $err) {
1755 fail "$file built with warnings" and return 0;
1756 }
1757 }
1758 }
1759 }
1760 close(IN);
1761
1762 return 1;
1763}
1764
1765sub apply_min_config {
1766 my $outconfig = "$output_config.new";
1767
1768 # Read the config file and remove anything that
1769 # is in the force_config hash (from minconfig and others)
1770 # then add the force config back.
1771
1772 doprint "Applying minimum configurations into $output_config.new\n";
1773
1774 open (OUT, ">$outconfig") or
1775 dodie "Can't create $outconfig";
1776
1777 if (-f $output_config) {
1778 open (IN, $output_config) or
1779 dodie "Failed to open $output_config";
1780 while (<IN>) {
1781 if (/^(# )?(CONFIG_[^\s=]*)/) {
1782 next if (defined($force_config{$2}));
1783 }
1784 print OUT;
1785 }
1786 close IN;
1787 }
1788 foreach my $config (keys %force_config) {
1789 print OUT "$force_config{$config}\n";
1790 }
1791 close OUT;
1792
1793 run_command "mv $outconfig $output_config";
1794}
1795
1796sub make_oldconfig {
1797
1798 my @force_list = keys %force_config;
1799
1800 if ($#force_list >= 0) {
1801 apply_min_config;
1802 }
1803
1804 if (!run_command "$make oldnoconfig") {
1805 # Perhaps oldnoconfig doesn't exist in this version of the kernel
1806 # try a yes '' | oldconfig
1807 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
1808 run_command "yes '' | $make oldconfig" or
1809 dodie "failed make config oldconfig";
1810 }
1811}
1812
1813# read a config file and use this to force new configs.
1814sub load_force_config {
1815 my ($config) = @_;
1816
1817 open(IN, $config) or
1818 dodie "failed to read $config";
1819 while (<IN>) {
1820 chomp;
1821 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
1822 $force_config{$1} = $_;
1823 } elsif (/^# (CONFIG_\S*) is not set/) {
1824 $force_config{$1} = $_;
1825 }
1826 }
1827 close IN;
1828}
1829
1830sub build {
1831 my ($type) = @_;
1832
1833 unlink $buildlog;
1834
1835 # Failed builds should not reboot the target
1836 my $save_no_reboot = $no_reboot;
1837 $no_reboot = 1;
1838
1839 # Calculate a new version from here.
1840 $have_version = 0;
1841
1842 if (defined($pre_build)) {
1843 my $ret = run_command $pre_build;
1844 if (!$ret && defined($pre_build_die) &&
1845 $pre_build_die) {
1846 dodie "failed to pre_build\n";
1847 }
1848 }
1849
1850 if ($type =~ /^useconfig:(.*)/) {
1851 run_command "cp $1 $output_config" or
1852 dodie "could not copy $1 to .config";
1853
1854 $type = "oldconfig";
1855 }
1856
1857 # old config can ask questions
1858 if ($type eq "oldconfig") {
1859 $type = "oldnoconfig";
1860
1861 # allow for empty configs
1862 run_command "touch $output_config";
1863
1864 if (!$noclean) {
1865 run_command "mv $output_config $outputdir/config_temp" or
1866 dodie "moving .config";
1867
1868 run_command "$make mrproper" or dodie "make mrproper";
1869
1870 run_command "mv $outputdir/config_temp $output_config" or
1871 dodie "moving config_temp";
1872 }
1873
1874 } elsif (!$noclean) {
1875 unlink "$output_config";
1876 run_command "$make mrproper" or
1877 dodie "make mrproper";
1878 }
1879
1880 # add something to distinguish this build
1881 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
1882 print OUT "$localversion\n";
1883 close(OUT);
1884
1885 if (defined($minconfig)) {
1886 load_force_config($minconfig);
1887 }
1888
1889 if ($type ne "oldnoconfig") {
1890 run_command "$make $type" or
1891 dodie "failed make config";
1892 }
1893 # Run old config regardless, to enforce min configurations
1894 make_oldconfig;
1895
1896 $redirect = "$buildlog";
1897 my $build_ret = run_command "$make $build_options";
1898 undef $redirect;
1899
1900 if (defined($post_build)) {
1901 # Because a post build may change the kernel version
1902 # do it now.
1903 get_version;
1904 my $ret = run_command $post_build;
1905 if (!$ret && defined($post_build_die) &&
1906 $post_build_die) {
1907 dodie "failed to post_build\n";
1908 }
1909 }
1910
1911 if (!$build_ret) {
1912 # bisect may need this to pass
1913 if ($in_bisect) {
1914 $no_reboot = $save_no_reboot;
1915 return 0;
1916 }
1917 fail "failed build" and return 0;
1918 }
1919
1920 $no_reboot = $save_no_reboot;
1921
1922 return 1;
1923}
1924
1925sub halt {
1926 if (!run_ssh "halt" or defined($power_off)) {
1927 if (defined($poweroff_after_halt)) {
1928 sleep $poweroff_after_halt;
1929 run_command "$power_off";
1930 }
1931 } else {
1932 # nope? the zap it!
1933 run_command "$power_off";
1934 }
1935}
1936
1937sub success {
1938 my ($i) = @_;
1939
1940 $successes++;
1941
1942 my $name = "";
1943
1944 if (defined($test_name)) {
1945 $name = " ($test_name)";
1946 }
1947
1948 doprint "\n\n*******************************************\n";
1949 doprint "*******************************************\n";
1950 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
1951 doprint "*******************************************\n";
1952 doprint "*******************************************\n";
1953
1954 if (defined($store_successes)) {
1955 save_logs "success", $store_successes;
1956 }
1957
1958 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
1959 doprint "Reboot and wait $sleep_time seconds\n";
1960 reboot_to_good $sleep_time;
1961 }
1962}
1963
1964sub answer_bisect {
1965 for (;;) {
1966 doprint "Pass or fail? [p/f]";
1967 my $ans = <STDIN>;
1968 chomp $ans;
1969 if ($ans eq "p" || $ans eq "P") {
1970 return 1;
1971 } elsif ($ans eq "f" || $ans eq "F") {
1972 return 0;
1973 } else {
1974 print "Please answer 'P' or 'F'\n";
1975 }
1976 }
1977}
1978
1979sub child_run_test {
1980 my $failed = 0;
1981
1982 # child should have no power
1983 $reboot_on_error = 0;
1984 $poweroff_on_error = 0;
1985 $die_on_failure = 1;
1986
1987 $redirect = "$testlog";
1988 run_command $run_test or $failed = 1;
1989 undef $redirect;
1990
1991 exit $failed;
1992}
1993
1994my $child_done;
1995
1996sub child_finished {
1997 $child_done = 1;
1998}
1999
2000sub do_run_test {
2001 my $child_pid;
2002 my $child_exit;
2003 my $line;
2004 my $full_line;
2005 my $bug = 0;
2006
2007 wait_for_monitor 1;
2008
2009 doprint "run test $run_test\n";
2010
2011 $child_done = 0;
2012
2013 $SIG{CHLD} = qw(child_finished);
2014
2015 $child_pid = fork;
2016
2017 child_run_test if (!$child_pid);
2018
2019 $full_line = "";
2020
2021 do {
2022 $line = wait_for_input($monitor_fp, 1);
2023 if (defined($line)) {
2024
2025 # we are not guaranteed to get a full line
2026 $full_line .= $line;
2027 doprint $line;
2028
2029 if ($full_line =~ /call trace:/i) {
2030 $bug = 1;
2031 }
2032
2033 if ($full_line =~ /Kernel panic -/) {
2034 $bug = 1;
2035 }
2036
2037 if ($line =~ /\n/) {
2038 $full_line = "";
2039 }
2040 }
2041 } while (!$child_done && !$bug);
2042
2043 if ($bug) {
2044 my $failure_start = time;
2045 my $now;
2046 do {
2047 $line = wait_for_input($monitor_fp, 1);
2048 if (defined($line)) {
2049 doprint $line;
2050 }
2051 $now = time;
2052 if ($now - $failure_start >= $stop_after_failure) {
2053 last;
2054 }
2055 } while (defined($line));
2056
2057 doprint "Detected kernel crash!\n";
2058 # kill the child with extreme prejudice
2059 kill 9, $child_pid;
2060 }
2061
2062 waitpid $child_pid, 0;
2063 $child_exit = $?;
2064
2065 if (!$bug && $in_bisect) {
2066 if (defined($bisect_ret_good)) {
2067 if ($child_exit == $bisect_ret_good) {
2068 return 1;
2069 }
2070 }
2071 if (defined($bisect_ret_skip)) {
2072 if ($child_exit == $bisect_ret_skip) {
2073 return -1;
2074 }
2075 }
2076 if (defined($bisect_ret_abort)) {
2077 if ($child_exit == $bisect_ret_abort) {
2078 fail "test abort" and return -2;
2079 }
2080 }
2081 if (defined($bisect_ret_bad)) {
2082 if ($child_exit == $bisect_ret_skip) {
2083 return 0;
2084 }
2085 }
2086 if (defined($bisect_ret_default)) {
2087 if ($bisect_ret_default eq "good") {
2088 return 1;
2089 } elsif ($bisect_ret_default eq "bad") {
2090 return 0;
2091 } elsif ($bisect_ret_default eq "skip") {
2092 return -1;
2093 } elsif ($bisect_ret_default eq "abort") {
2094 return -2;
2095 } else {
2096 fail "unknown default action: $bisect_ret_default"
2097 and return -2;
2098 }
2099 }
2100 }
2101
2102 if ($bug || $child_exit) {
2103 return 0 if $in_bisect;
2104 fail "test failed" and return 0;
2105 }
2106 return 1;
2107}
2108
2109sub run_git_bisect {
2110 my ($command) = @_;
2111
2112 doprint "$command ... ";
2113
2114 my $output = `$command 2>&1`;
2115 my $ret = $?;
2116
2117 logit $output;
2118
2119 if ($ret) {
2120 doprint "FAILED\n";
2121 dodie "Failed to git bisect";
2122 }
2123
2124 doprint "SUCCESS\n";
2125 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2126 doprint "$1 [$2]\n";
2127 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2128 $bisect_bad_commit = $1;
2129 doprint "Found bad commit... $1\n";
2130 return 0;
2131 } else {
2132 # we already logged it, just print it now.
2133 print $output;
2134 }
2135
2136 return 1;
2137}
2138
2139sub bisect_reboot {
2140 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2141 reboot_to_good $bisect_sleep_time;
2142}
2143
2144# returns 1 on success, 0 on failure, -1 on skip
2145sub run_bisect_test {
2146 my ($type, $buildtype) = @_;
2147
2148 my $failed = 0;
2149 my $result;
2150 my $output;
2151 my $ret;
2152
2153 $in_bisect = 1;
2154
2155 build $buildtype or $failed = 1;
2156
2157 if ($type ne "build") {
2158 if ($failed && $bisect_skip) {
2159 $in_bisect = 0;
2160 return -1;
2161 }
2162 dodie "Failed on build" if $failed;
2163
2164 # Now boot the box
2165 start_monitor_and_boot or $failed = 1;
2166
2167 if ($type ne "boot") {
2168 if ($failed && $bisect_skip) {
2169 end_monitor;
2170 bisect_reboot;
2171 $in_bisect = 0;
2172 return -1;
2173 }
2174 dodie "Failed on boot" if $failed;
2175
2176 do_run_test or $failed = 1;
2177 }
2178 end_monitor;
2179 }
2180
2181 if ($failed) {
2182 $result = 0;
2183 } else {
2184 $result = 1;
2185 }
2186
2187 # reboot the box to a kernel we can ssh to
2188 if ($type ne "build") {
2189 bisect_reboot;
2190 }
2191 $in_bisect = 0;
2192
2193 return $result;
2194}
2195
2196sub run_bisect {
2197 my ($type) = @_;
2198 my $buildtype = "oldconfig";
2199
2200 # We should have a minconfig to use?
2201 if (defined($minconfig)) {
2202 $buildtype = "useconfig:$minconfig";
2203 }
2204
2205 my $ret = run_bisect_test $type, $buildtype;
2206
2207 if ($bisect_manual) {
2208 $ret = answer_bisect;
2209 }
2210
2211 # Are we looking for where it worked, not failed?
2212 if ($reverse_bisect && $ret >= 0) {
2213 $ret = !$ret;
2214 }
2215
2216 if ($ret > 0) {
2217 return "good";
2218 } elsif ($ret == 0) {
2219 return "bad";
2220 } elsif ($bisect_skip) {
2221 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2222 return "skip";
2223 }
2224}
2225
2226sub update_bisect_replay {
2227 my $tmp_log = "$tmpdir/ktest_bisect_log";
2228 run_command "git bisect log > $tmp_log" or
2229 die "can't create bisect log";
2230 return $tmp_log;
2231}
2232
2233sub bisect {
2234 my ($i) = @_;
2235
2236 my $result;
2237
2238 die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2239 die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2240 die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2241
2242 my $good = $bisect_good;
2243 my $bad = $bisect_bad;
2244 my $type = $bisect_type;
2245 my $start = $bisect_start;
2246 my $replay = $bisect_replay;
2247 my $start_files = $bisect_files;
2248
2249 if (defined($start_files)) {
2250 $start_files = " -- " . $start_files;
2251 } else {
2252 $start_files = "";
2253 }
2254
2255 # convert to true sha1's
2256 $good = get_sha1($good);
2257 $bad = get_sha1($bad);
2258
2259 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2260 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2261 $reverse_bisect = 1;
2262 } else {
2263 $reverse_bisect = 0;
2264 }
2265
2266 # Can't have a test without having a test to run
2267 if ($type eq "test" && !defined($run_test)) {
2268 $type = "boot";
2269 }
2270
2271 # Check if a bisect was running
2272 my $bisect_start_file = "$builddir/.git/BISECT_START";
2273
2274 my $check = $bisect_check;
2275 my $do_check = defined($check) && $check ne "0";
2276
2277 if ( -f $bisect_start_file ) {
2278 print "Bisect in progress found\n";
2279 if ($do_check) {
2280 print " If you say yes, then no checks of good or bad will be done\n";
2281 }
2282 if (defined($replay)) {
2283 print "** BISECT_REPLAY is defined in config file **";
2284 print " Ignore config option and perform new git bisect log?\n";
2285 if (read_ync " (yes, no, or cancel) ") {
2286 $replay = update_bisect_replay;
2287 $do_check = 0;
2288 }
2289 } elsif (read_yn "read git log and continue?") {
2290 $replay = update_bisect_replay;
2291 $do_check = 0;
2292 }
2293 }
2294
2295 if ($do_check) {
2296
2297 # get current HEAD
2298 my $head = get_sha1("HEAD");
2299
2300 if ($check ne "good") {
2301 doprint "TESTING BISECT BAD [$bad]\n";
2302 run_command "git checkout $bad" or
2303 die "Failed to checkout $bad";
2304
2305 $result = run_bisect $type;
2306
2307 if ($result ne "bad") {
2308 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2309 }
2310 }
2311
2312 if ($check ne "bad") {
2313 doprint "TESTING BISECT GOOD [$good]\n";
2314 run_command "git checkout $good" or
2315 die "Failed to checkout $good";
2316
2317 $result = run_bisect $type;
2318
2319 if ($result ne "good") {
2320 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2321 }
2322 }
2323
2324 # checkout where we started
2325 run_command "git checkout $head" or
2326 die "Failed to checkout $head";
2327 }
2328
2329 run_command "git bisect start$start_files" or
2330 dodie "could not start bisect";
2331
2332 run_command "git bisect good $good" or
2333 dodie "could not set bisect good to $good";
2334
2335 run_git_bisect "git bisect bad $bad" or
2336 dodie "could not set bisect bad to $bad";
2337
2338 if (defined($replay)) {
2339 run_command "git bisect replay $replay" or
2340 dodie "failed to run replay";
2341 }
2342
2343 if (defined($start)) {
2344 run_command "git checkout $start" or
2345 dodie "failed to checkout $start";
2346 }
2347
2348 my $test;
2349 do {
2350 $result = run_bisect $type;
2351 $test = run_git_bisect "git bisect $result";
2352 } while ($test);
2353
2354 run_command "git bisect log" or
2355 dodie "could not capture git bisect log";
2356
2357 run_command "git bisect reset" or
2358 dodie "could not reset git bisect";
2359
2360 doprint "Bad commit was [$bisect_bad_commit]\n";
2361
2362 success $i;
2363}
2364
2365my %config_ignore;
2366my %config_set;
2367
2368my %config_list;
2369my %null_config;
2370
2371my %dependency;
2372
2373sub assign_configs {
2374 my ($hash, $config) = @_;
2375
2376 open (IN, $config)
2377 or dodie "Failed to read $config";
2378
2379 while (<IN>) {
2380 if (/^((CONFIG\S*)=.*)/) {
2381 ${$hash}{$2} = $1;
2382 }
2383 }
2384
2385 close(IN);
2386}
2387
2388sub process_config_ignore {
2389 my ($config) = @_;
2390
2391 assign_configs \%config_ignore, $config;
2392}
2393
2394sub read_current_config {
2395 my ($config_ref) = @_;
2396
2397 %{$config_ref} = ();
2398 undef %{$config_ref};
2399
2400 my @key = keys %{$config_ref};
2401 if ($#key >= 0) {
2402 print "did not delete!\n";
2403 exit;
2404 }
2405 open (IN, "$output_config");
2406
2407 while (<IN>) {
2408 if (/^(CONFIG\S+)=(.*)/) {
2409 ${$config_ref}{$1} = $2;
2410 }
2411 }
2412 close(IN);
2413}
2414
2415sub get_dependencies {
2416 my ($config) = @_;
2417
2418 my $arr = $dependency{$config};
2419 if (!defined($arr)) {
2420 return ();
2421 }
2422
2423 my @deps = @{$arr};
2424
2425 foreach my $dep (@{$arr}) {
2426 print "ADD DEP $dep\n";
2427 @deps = (@deps, get_dependencies $dep);
2428 }
2429
2430 return @deps;
2431}
2432
2433sub create_config {
2434 my @configs = @_;
2435
2436 open(OUT, ">$output_config") or dodie "Can not write to $output_config";
2437
2438 foreach my $config (@configs) {
2439 print OUT "$config_set{$config}\n";
2440 my @deps = get_dependencies $config;
2441 foreach my $dep (@deps) {
2442 print OUT "$config_set{$dep}\n";
2443 }
2444 }
2445
2446 foreach my $config (keys %config_ignore) {
2447 print OUT "$config_ignore{$config}\n";
2448 }
2449 close(OUT);
2450
2451# exit;
2452 make_oldconfig;
2453}
2454
2455sub compare_configs {
2456 my (%a, %b) = @_;
2457
2458 foreach my $item (keys %a) {
2459 if (!defined($b{$item})) {
2460 print "diff $item\n";
2461 return 1;
2462 }
2463 delete $b{$item};
2464 }
2465
2466 my @keys = keys %b;
2467 if ($#keys) {
2468 print "diff2 $keys[0]\n";
2469 }
2470 return -1 if ($#keys >= 0);
2471
2472 return 0;
2473}
2474
2475sub run_config_bisect_test {
2476 my ($type) = @_;
2477
2478 return run_bisect_test $type, "oldconfig";
2479}
2480
2481sub process_passed {
2482 my (%configs) = @_;
2483
2484 doprint "These configs had no failure: (Enabling them for further compiles)\n";
2485 # Passed! All these configs are part of a good compile.
2486 # Add them to the min options.
2487 foreach my $config (keys %configs) {
2488 if (defined($config_list{$config})) {
2489 doprint " removing $config\n";
2490 $config_ignore{$config} = $config_list{$config};
2491 delete $config_list{$config};
2492 }
2493 }
2494 doprint "config copied to $outputdir/config_good\n";
2495 run_command "cp -f $output_config $outputdir/config_good";
2496}
2497
2498sub process_failed {
2499 my ($config) = @_;
2500
2501 doprint "\n\n***************************************\n";
2502 doprint "Found bad config: $config\n";
2503 doprint "***************************************\n\n";
2504}
2505
2506sub run_config_bisect {
2507
2508 my @start_list = keys %config_list;
2509
2510 if ($#start_list < 0) {
2511 doprint "No more configs to test!!!\n";
2512 return -1;
2513 }
2514
2515 doprint "***** RUN TEST ***\n";
2516 my $type = $config_bisect_type;
2517 my $ret;
2518 my %current_config;
2519
2520 my $count = $#start_list + 1;
2521 doprint " $count configs to test\n";
2522
2523 my $half = int($#start_list / 2);
2524
2525 do {
2526 my @tophalf = @start_list[0 .. $half];
2527
2528 create_config @tophalf;
2529 read_current_config \%current_config;
2530
2531 $count = $#tophalf + 1;
2532 doprint "Testing $count configs\n";
2533 my $found = 0;
2534 # make sure we test something
2535 foreach my $config (@tophalf) {
2536 if (defined($current_config{$config})) {
2537 logit " $config\n";
2538 $found = 1;
2539 }
2540 }
2541 if (!$found) {
2542 # try the other half
2543 doprint "Top half produced no set configs, trying bottom half\n";
2544 @tophalf = @start_list[$half + 1 .. $#start_list];
2545 create_config @tophalf;
2546 read_current_config \%current_config;
2547 foreach my $config (@tophalf) {
2548 if (defined($current_config{$config})) {
2549 logit " $config\n";
2550 $found = 1;
2551 }
2552 }
2553 if (!$found) {
2554 doprint "Failed: Can't make new config with current configs\n";
2555 foreach my $config (@start_list) {
2556 doprint " CONFIG: $config\n";
2557 }
2558 return -1;
2559 }
2560 $count = $#tophalf + 1;
2561 doprint "Testing $count configs\n";
2562 }
2563
2564 $ret = run_config_bisect_test $type;
2565 if ($bisect_manual) {
2566 $ret = answer_bisect;
2567 }
2568 if ($ret) {
2569 process_passed %current_config;
2570 return 0;
2571 }
2572
2573 doprint "This config had a failure.\n";
2574 doprint "Removing these configs that were not set in this config:\n";
2575 doprint "config copied to $outputdir/config_bad\n";
2576 run_command "cp -f $output_config $outputdir/config_bad";
2577
2578 # A config exists in this group that was bad.
2579 foreach my $config (keys %config_list) {
2580 if (!defined($current_config{$config})) {
2581 doprint " removing $config\n";
2582 delete $config_list{$config};
2583 }
2584 }
2585
2586 @start_list = @tophalf;
2587
2588 if ($#start_list == 0) {
2589 process_failed $start_list[0];
2590 return 1;
2591 }
2592
2593 # remove half the configs we are looking at and see if
2594 # they are good.
2595 $half = int($#start_list / 2);
2596 } while ($#start_list > 0);
2597
2598 # we found a single config, try it again unless we are running manually
2599
2600 if ($bisect_manual) {
2601 process_failed $start_list[0];
2602 return 1;
2603 }
2604
2605 my @tophalf = @start_list[0 .. 0];
2606
2607 $ret = run_config_bisect_test $type;
2608 if ($ret) {
2609 process_passed %current_config;
2610 return 0;
2611 }
2612
2613 process_failed $start_list[0];
2614 return 1;
2615}
2616
2617sub config_bisect {
2618 my ($i) = @_;
2619
2620 my $start_config = $config_bisect;
2621
2622 my $tmpconfig = "$tmpdir/use_config";
2623
2624 if (defined($config_bisect_good)) {
2625 process_config_ignore $config_bisect_good;
2626 }
2627
2628 # Make the file with the bad config and the min config
2629 if (defined($minconfig)) {
2630 # read the min config for things to ignore
2631 run_command "cp $minconfig $tmpconfig" or
2632 dodie "failed to copy $minconfig to $tmpconfig";
2633 } else {
2634 unlink $tmpconfig;
2635 }
2636
2637 if (-f $tmpconfig) {
2638 load_force_config($tmpconfig);
2639 process_config_ignore $tmpconfig;
2640 }
2641
2642 # now process the start config
2643 run_command "cp $start_config $output_config" or
2644 dodie "failed to copy $start_config to $output_config";
2645
2646 # read directly what we want to check
2647 my %config_check;
2648 open (IN, $output_config)
2649 or dodie "failed to open $output_config";
2650
2651 while (<IN>) {
2652 if (/^((CONFIG\S*)=.*)/) {
2653 $config_check{$2} = $1;
2654 }
2655 }
2656 close(IN);
2657
2658 # Now run oldconfig with the minconfig
2659 make_oldconfig;
2660
2661 # check to see what we lost (or gained)
2662 open (IN, $output_config)
2663 or dodie "Failed to read $start_config";
2664
2665 my %removed_configs;
2666 my %added_configs;
2667
2668 while (<IN>) {
2669 if (/^((CONFIG\S*)=.*)/) {
2670 # save off all options
2671 $config_set{$2} = $1;
2672 if (defined($config_check{$2})) {
2673 if (defined($config_ignore{$2})) {
2674 $removed_configs{$2} = $1;
2675 } else {
2676 $config_list{$2} = $1;
2677 }
2678 } elsif (!defined($config_ignore{$2})) {
2679 $added_configs{$2} = $1;
2680 $config_list{$2} = $1;
2681 }
2682 }
2683 }
2684 close(IN);
2685
2686 my @confs = keys %removed_configs;
2687 if ($#confs >= 0) {
2688 doprint "Configs overridden by default configs and removed from check:\n";
2689 foreach my $config (@confs) {
2690 doprint " $config\n";
2691 }
2692 }
2693 @confs = keys %added_configs;
2694 if ($#confs >= 0) {
2695 doprint "Configs appearing in make oldconfig and added:\n";
2696 foreach my $config (@confs) {
2697 doprint " $config\n";
2698 }
2699 }
2700
2701 my %config_test;
2702 my $once = 0;
2703
2704 # Sometimes kconfig does weird things. We must make sure
2705 # that the config we autocreate has everything we need
2706 # to test, otherwise we may miss testing configs, or
2707 # may not be able to create a new config.
2708 # Here we create a config with everything set.
2709 create_config (keys %config_list);
2710 read_current_config \%config_test;
2711 foreach my $config (keys %config_list) {
2712 if (!defined($config_test{$config})) {
2713 if (!$once) {
2714 $once = 1;
2715 doprint "Configs not produced by kconfig (will not be checked):\n";
2716 }
2717 doprint " $config\n";
2718 delete $config_list{$config};
2719 }
2720 }
2721 my $ret;
2722 do {
2723 $ret = run_config_bisect;
2724 } while (!$ret);
2725
2726 return $ret if ($ret < 0);
2727
2728 success $i;
2729}
2730
2731sub patchcheck_reboot {
2732 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
2733 reboot_to_good $patchcheck_sleep_time;
2734}
2735
2736sub patchcheck {
2737 my ($i) = @_;
2738
2739 die "PATCHCHECK_START[$i] not defined\n"
2740 if (!defined($patchcheck_start));
2741 die "PATCHCHECK_TYPE[$i] not defined\n"
2742 if (!defined($patchcheck_type));
2743
2744 my $start = $patchcheck_start;
2745
2746 my $end = "HEAD";
2747 if (defined($patchcheck_end)) {
2748 $end = $patchcheck_end;
2749 }
2750
2751 # Get the true sha1's since we can use things like HEAD~3
2752 $start = get_sha1($start);
2753 $end = get_sha1($end);
2754
2755 my $type = $patchcheck_type;
2756
2757 # Can't have a test without having a test to run
2758 if ($type eq "test" && !defined($run_test)) {
2759 $type = "boot";
2760 }
2761
2762 open (IN, "git log --pretty=oneline $end|") or
2763 dodie "could not get git list";
2764
2765 my @list;
2766
2767 while (<IN>) {
2768 chomp;
2769 $list[$#list+1] = $_;
2770 last if (/^$start/);
2771 }
2772 close(IN);
2773
2774 if ($list[$#list] !~ /^$start/) {
2775 fail "SHA1 $start not found";
2776 }
2777
2778 # go backwards in the list
2779 @list = reverse @list;
2780
2781 my $save_clean = $noclean;
2782 my %ignored_warnings;
2783
2784 if (defined($ignore_warnings)) {
2785 foreach my $sha1 (split /\s+/, $ignore_warnings) {
2786 $ignored_warnings{$sha1} = 1;
2787 }
2788 }
2789
2790 $in_patchcheck = 1;
2791 foreach my $item (@list) {
2792 my $sha1 = $item;
2793 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
2794
2795 doprint "\nProcessing commit $item\n\n";
2796
2797 run_command "git checkout $sha1" or
2798 die "Failed to checkout $sha1";
2799
2800 # only clean on the first and last patch
2801 if ($item eq $list[0] ||
2802 $item eq $list[$#list]) {
2803 $noclean = $save_clean;
2804 } else {
2805 $noclean = 1;
2806 }
2807
2808 if (defined($minconfig)) {
2809 build "useconfig:$minconfig" or return 0;
2810 } else {
2811 # ?? no config to use?
2812 build "oldconfig" or return 0;
2813 }
2814
2815
2816 if (!defined($ignored_warnings{$sha1})) {
2817 check_buildlog $sha1 or return 0;
2818 }
2819
2820 next if ($type eq "build");
2821
2822 my $failed = 0;
2823
2824 start_monitor_and_boot or $failed = 1;
2825
2826 if (!$failed && $type ne "boot"){
2827 do_run_test or $failed = 1;
2828 }
2829 end_monitor;
2830 return 0 if ($failed);
2831
2832 patchcheck_reboot;
2833
2834 }
2835 $in_patchcheck = 0;
2836 success $i;
2837
2838 return 1;
2839}
2840
2841my %depends;
2842my %depcount;
2843my $iflevel = 0;
2844my @ifdeps;
2845
2846# prevent recursion
2847my %read_kconfigs;
2848
2849sub add_dep {
2850 # $config depends on $dep
2851 my ($config, $dep) = @_;
2852
2853 if (defined($depends{$config})) {
2854 $depends{$config} .= " " . $dep;
2855 } else {
2856 $depends{$config} = $dep;
2857 }
2858
2859 # record the number of configs depending on $dep
2860 if (defined $depcount{$dep}) {
2861 $depcount{$dep}++;
2862 } else {
2863 $depcount{$dep} = 1;
2864 }
2865}
2866
2867# taken from streamline_config.pl
2868sub read_kconfig {
2869 my ($kconfig) = @_;
2870
2871 my $state = "NONE";
2872 my $config;
2873 my @kconfigs;
2874
2875 my $cont = 0;
2876 my $line;
2877
2878
2879 if (! -f $kconfig) {
2880 doprint "file $kconfig does not exist, skipping\n";
2881 return;
2882 }
2883
2884 open(KIN, "$kconfig")
2885 or die "Can't open $kconfig";
2886 while (<KIN>) {
2887 chomp;
2888
2889 # Make sure that lines ending with \ continue
2890 if ($cont) {
2891 $_ = $line . " " . $_;
2892 }
2893
2894 if (s/\\$//) {
2895 $cont = 1;
2896 $line = $_;
2897 next;
2898 }
2899
2900 $cont = 0;
2901
2902 # collect any Kconfig sources
2903 if (/^source\s*"(.*)"/) {
2904 $kconfigs[$#kconfigs+1] = $1;
2905 }
2906
2907 # configs found
2908 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
2909 $state = "NEW";
2910 $config = $2;
2911
2912 for (my $i = 0; $i < $iflevel; $i++) {
2913 add_dep $config, $ifdeps[$i];
2914 }
2915
2916 # collect the depends for the config
2917 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
2918
2919 add_dep $config, $1;
2920
2921 # Get the configs that select this config
2922 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
2923
2924 # selected by depends on config
2925 add_dep $1, $config;
2926
2927 # Check for if statements
2928 } elsif (/^if\s+(.*\S)\s*$/) {
2929 my $deps = $1;
2930 # remove beginning and ending non text
2931 $deps =~ s/^[^a-zA-Z0-9_]*//;
2932 $deps =~ s/[^a-zA-Z0-9_]*$//;
2933
2934 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
2935
2936 $ifdeps[$iflevel++] = join ':', @deps;
2937
2938 } elsif (/^endif/) {
2939
2940 $iflevel-- if ($iflevel);
2941
2942 # stop on "help"
2943 } elsif (/^\s*help\s*$/) {
2944 $state = "NONE";
2945 }
2946 }
2947 close(KIN);
2948
2949 # read in any configs that were found.
2950 foreach $kconfig (@kconfigs) {
2951 if (!defined($read_kconfigs{$kconfig})) {
2952 $read_kconfigs{$kconfig} = 1;
2953 read_kconfig("$builddir/$kconfig");
2954 }
2955 }
2956}
2957
2958sub read_depends {
2959 # find out which arch this is by the kconfig file
2960 open (IN, $output_config)
2961 or dodie "Failed to read $output_config";
2962 my $arch;
2963 while (<IN>) {
2964 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
2965 $arch = $1;
2966 last;
2967 }
2968 }
2969 close IN;
2970
2971 if (!defined($arch)) {
2972 doprint "Could not find arch from config file\n";
2973 doprint "no dependencies used\n";
2974 return;
2975 }
2976
2977 # arch is really the subarch, we need to know
2978 # what directory to look at.
2979 if ($arch eq "i386" || $arch eq "x86_64") {
2980 $arch = "x86";
2981 } elsif ($arch =~ /^tile/) {
2982 $arch = "tile";
2983 }
2984
2985 my $kconfig = "$builddir/arch/$arch/Kconfig";
2986
2987 if (! -f $kconfig && $arch =~ /\d$/) {
2988 my $orig = $arch;
2989 # some subarchs have numbers, truncate them
2990 $arch =~ s/\d*$//;
2991 $kconfig = "$builddir/arch/$arch/Kconfig";
2992 if (! -f $kconfig) {
2993 doprint "No idea what arch dir $orig is for\n";
2994 doprint "no dependencies used\n";
2995 return;
2996 }
2997 }
2998
2999 read_kconfig($kconfig);
3000}
3001
3002sub read_config_list {
3003 my ($config) = @_;
3004
3005 open (IN, $config)
3006 or dodie "Failed to read $config";
3007
3008 while (<IN>) {
3009 if (/^((CONFIG\S*)=.*)/) {
3010 if (!defined($config_ignore{$2})) {
3011 $config_list{$2} = $1;
3012 }
3013 }
3014 }
3015
3016 close(IN);
3017}
3018
3019sub read_output_config {
3020 my ($config) = @_;
3021
3022 assign_configs \%config_ignore, $config;
3023}
3024
3025sub make_new_config {
3026 my @configs = @_;
3027
3028 open (OUT, ">$output_config")
3029 or dodie "Failed to write $output_config";
3030
3031 foreach my $config (@configs) {
3032 print OUT "$config\n";
3033 }
3034 close OUT;
3035}
3036
3037sub chomp_config {
3038 my ($config) = @_;
3039
3040 $config =~ s/CONFIG_//;
3041
3042 return $config;
3043}
3044
3045sub get_depends {
3046 my ($dep) = @_;
3047
3048 my $kconfig = chomp_config $dep;
3049
3050 $dep = $depends{"$kconfig"};
3051
3052 # the dep string we have saves the dependencies as they
3053 # were found, including expressions like ! && ||. We
3054 # want to split this out into just an array of configs.
3055
3056 my $valid = "A-Za-z_0-9";
3057
3058 my @configs;
3059
3060 while ($dep =~ /[$valid]/) {
3061
3062 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3063 my $conf = "CONFIG_" . $1;
3064
3065 $configs[$#configs + 1] = $conf;
3066
3067 $dep =~ s/^[^$valid]*[$valid]+//;
3068 } else {
3069 die "this should never happen";
3070 }
3071 }
3072
3073 return @configs;
3074}
3075
3076my %min_configs;
3077my %keep_configs;
3078my %save_configs;
3079my %processed_configs;
3080my %nochange_config;
3081
3082sub test_this_config {
3083 my ($config) = @_;
3084
3085 my $found;
3086
3087 # if we already processed this config, skip it
3088 if (defined($processed_configs{$config})) {
3089 return undef;
3090 }
3091 $processed_configs{$config} = 1;
3092
3093 # if this config failed during this round, skip it
3094 if (defined($nochange_config{$config})) {
3095 return undef;
3096 }
3097
3098 my $kconfig = chomp_config $config;
3099
3100 # Test dependencies first
3101 if (defined($depends{"$kconfig"})) {
3102 my @parents = get_depends $config;
3103 foreach my $parent (@parents) {
3104 # if the parent is in the min config, check it first
3105 next if (!defined($min_configs{$parent}));
3106 $found = test_this_config($parent);
3107 if (defined($found)) {
3108 return $found;
3109 }
3110 }
3111 }
3112
3113 # Remove this config from the list of configs
3114 # do a make oldnoconfig and then read the resulting
3115 # .config to make sure it is missing the config that
3116 # we had before
3117 my %configs = %min_configs;
3118 delete $configs{$config};
3119 make_new_config ((values %configs), (values %keep_configs));
3120 make_oldconfig;
3121 undef %configs;
3122 assign_configs \%configs, $output_config;
3123
3124 return $config if (!defined($configs{$config}));
3125
3126 doprint "disabling config $config did not change .config\n";
3127
3128 $nochange_config{$config} = 1;
3129
3130 return undef;
3131}
3132
3133sub make_min_config {
3134 my ($i) = @_;
3135
3136 my $type = $minconfig_type;
3137 if ($type ne "boot" && $type ne "test") {
3138 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3139 " make_min_config works only with 'boot' and 'test'\n" and return;
3140 }
3141
3142 if (!defined($output_minconfig)) {
3143 fail "OUTPUT_MIN_CONFIG not defined" and return;
3144 }
3145
3146 # If output_minconfig exists, and the start_minconfig
3147 # came from min_config, than ask if we should use
3148 # that instead.
3149 if (-f $output_minconfig && !$start_minconfig_defined) {
3150 print "$output_minconfig exists\n";
3151 if (!defined($use_output_minconfig)) {
3152 if (read_yn " Use it as minconfig?") {
3153 $start_minconfig = $output_minconfig;
3154 }
3155 } elsif ($use_output_minconfig > 0) {
3156 doprint "Using $output_minconfig as MIN_CONFIG\n";
3157 $start_minconfig = $output_minconfig;
3158 } else {
3159 doprint "Set to still use MIN_CONFIG as starting point\n";
3160 }
3161 }
3162
3163 if (!defined($start_minconfig)) {
3164 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3165 }
3166
3167 my $temp_config = "$tmpdir/temp_config";
3168
3169 # First things first. We build an allnoconfig to find
3170 # out what the defaults are that we can't touch.
3171 # Some are selections, but we really can't handle selections.
3172
3173 my $save_minconfig = $minconfig;
3174 undef $minconfig;
3175
3176 run_command "$make allnoconfig" or return 0;
3177
3178 read_depends;
3179
3180 process_config_ignore $output_config;
3181
3182 undef %save_configs;
3183 undef %min_configs;
3184
3185 if (defined($ignore_config)) {
3186 # make sure the file exists
3187 `touch $ignore_config`;
3188 assign_configs \%save_configs, $ignore_config;
3189 }
3190
3191 %keep_configs = %save_configs;
3192
3193 doprint "Load initial configs from $start_minconfig\n";
3194
3195 # Look at the current min configs, and save off all the
3196 # ones that were set via the allnoconfig
3197 assign_configs \%min_configs, $start_minconfig;
3198
3199 my @config_keys = keys %min_configs;
3200
3201 # All configs need a depcount
3202 foreach my $config (@config_keys) {
3203 my $kconfig = chomp_config $config;
3204 if (!defined $depcount{$kconfig}) {
3205 $depcount{$kconfig} = 0;
3206 }
3207 }
3208
3209 # Remove anything that was set by the make allnoconfig
3210 # we shouldn't need them as they get set for us anyway.
3211 foreach my $config (@config_keys) {
3212 # Remove anything in the ignore_config
3213 if (defined($keep_configs{$config})) {
3214 my $file = $ignore_config;
3215 $file =~ s,.*/(.*?)$,$1,;
3216 doprint "$config set by $file ... ignored\n";
3217 delete $min_configs{$config};
3218 next;
3219 }
3220 # But make sure the settings are the same. If a min config
3221 # sets a selection, we do not want to get rid of it if
3222 # it is not the same as what we have. Just move it into
3223 # the keep configs.
3224 if (defined($config_ignore{$config})) {
3225 if ($config_ignore{$config} ne $min_configs{$config}) {
3226 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3227 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3228 $keep_configs{$config} = $min_configs{$config};
3229 } else {
3230 doprint "$config set by allnoconfig ... ignored\n";
3231 }
3232 delete $min_configs{$config};
3233 }
3234 }
3235
3236 my $done = 0;
3237 my $take_two = 0;
3238
3239 while (!$done) {
3240
3241 my $config;
3242 my $found;
3243
3244 # Now disable each config one by one and do a make oldconfig
3245 # till we find a config that changes our list.
3246
3247 my @test_configs = keys %min_configs;
3248
3249 # Sort keys by who is most dependent on
3250 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3251 @test_configs ;
3252
3253 # Put configs that did not modify the config at the end.
3254 my $reset = 1;
3255 for (my $i = 0; $i < $#test_configs; $i++) {
3256 if (!defined($nochange_config{$test_configs[0]})) {
3257 $reset = 0;
3258 last;
3259 }
3260 # This config didn't change the .config last time.
3261 # Place it at the end
3262 my $config = shift @test_configs;
3263 push @test_configs, $config;
3264 }
3265
3266 # if every test config has failed to modify the .config file
3267 # in the past, then reset and start over.
3268 if ($reset) {
3269 undef %nochange_config;
3270 }
3271
3272 undef %processed_configs;
3273
3274 foreach my $config (@test_configs) {
3275
3276 $found = test_this_config $config;
3277
3278 last if (defined($found));
3279
3280 # oh well, try another config
3281 }
3282
3283 if (!defined($found)) {
3284 # we could have failed due to the nochange_config hash
3285 # reset and try again
3286 if (!$take_two) {
3287 undef %nochange_config;
3288 $take_two = 1;
3289 next;
3290 }
3291 doprint "No more configs found that we can disable\n";
3292 $done = 1;
3293 last;
3294 }
3295 $take_two = 0;
3296
3297 $config = $found;
3298
3299 doprint "Test with $config disabled\n";
3300
3301 # set in_bisect to keep build and monitor from dieing
3302 $in_bisect = 1;
3303
3304 my $failed = 0;
3305 build "oldconfig" or $failed = 1;
3306 if (!$failed) {
3307 start_monitor_and_boot or $failed = 1;
3308
3309 if ($type eq "test" && !$failed) {
3310 do_run_test or $failed = 1;
3311 }
3312
3313 end_monitor;
3314 }
3315
3316 $in_bisect = 0;
3317
3318 if ($failed) {
3319 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3320 # this config is needed, add it to the ignore list.
3321 $keep_configs{$config} = $min_configs{$config};
3322 $save_configs{$config} = $min_configs{$config};
3323 delete $min_configs{$config};
3324
3325 # update new ignore configs
3326 if (defined($ignore_config)) {
3327 open (OUT, ">$temp_config")
3328 or die "Can't write to $temp_config";
3329 foreach my $config (keys %save_configs) {
3330 print OUT "$save_configs{$config}\n";
3331 }
3332 close OUT;
3333 run_command "mv $temp_config $ignore_config" or
3334 dodie "failed to copy update to $ignore_config";
3335 }
3336
3337 } else {
3338 # We booted without this config, remove it from the minconfigs.
3339 doprint "$config is not needed, disabling\n";
3340
3341 delete $min_configs{$config};
3342
3343 # Also disable anything that is not enabled in this config
3344 my %configs;
3345 assign_configs \%configs, $output_config;
3346 my @config_keys = keys %min_configs;
3347 foreach my $config (@config_keys) {
3348 if (!defined($configs{$config})) {
3349 doprint "$config is not set, disabling\n";
3350 delete $min_configs{$config};
3351 }
3352 }
3353
3354 # Save off all the current mandidory configs
3355 open (OUT, ">$temp_config")
3356 or die "Can't write to $temp_config";
3357 foreach my $config (keys %keep_configs) {
3358 print OUT "$keep_configs{$config}\n";
3359 }
3360 foreach my $config (keys %min_configs) {
3361 print OUT "$min_configs{$config}\n";
3362 }
3363 close OUT;
3364
3365 run_command "mv $temp_config $output_minconfig" or
3366 dodie "failed to copy update to $output_minconfig";
3367 }
3368
3369 doprint "Reboot and wait $sleep_time seconds\n";
3370 reboot_to_good $sleep_time;
3371 }
3372
3373 success $i;
3374 return 1;
3375}
3376
3377$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl config-file\n";
3378
3379if ($#ARGV == 0) {
3380 $ktest_config = $ARGV[0];
3381 if (! -f $ktest_config) {
3382 print "$ktest_config does not exist.\n";
3383 if (!read_yn "Create it?") {
3384 exit 0;
3385 }
3386 }
3387} else {
3388 $ktest_config = "ktest.conf";
3389}
3390
3391if (! -f $ktest_config) {
3392 $newconfig = 1;
3393 get_test_case;
3394 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
3395 print OUT << "EOF"
3396# Generated by ktest.pl
3397#
3398
3399# PWD is a ktest.pl variable that will result in the process working
3400# directory that ktest.pl is executed in.
3401
3402# THIS_DIR is automatically assigned the PWD of the path that generated
3403# the config file. It is best to use this variable when assigning other
3404# directory paths within this directory. This allows you to easily
3405# move the test cases to other locations or to other machines.
3406#
3407THIS_DIR := $variable{"PWD"}
3408
3409# Define each test with TEST_START
3410# The config options below it will override the defaults
3411TEST_START
3412TEST_TYPE = $default{"TEST_TYPE"}
3413
3414DEFAULTS
3415EOF
3416;
3417 close(OUT);
3418}
3419read_config $ktest_config;
3420
3421if (defined($opt{"LOG_FILE"})) {
3422 $opt{"LOG_FILE"} = eval_option($opt{"LOG_FILE"}, -1);
3423}
3424
3425# Append any configs entered in manually to the config file.
3426my @new_configs = keys %entered_configs;
3427if ($#new_configs >= 0) {
3428 print "\nAppending entered in configs to $ktest_config\n";
3429 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
3430 foreach my $config (@new_configs) {
3431 print OUT "$config = $entered_configs{$config}\n";
3432 $opt{$config} = process_variables($entered_configs{$config});
3433 }
3434}
3435
3436if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
3437 unlink $opt{"LOG_FILE"};
3438}
3439
3440doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
3441
3442for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
3443
3444 if (!$i) {
3445 doprint "DEFAULT OPTIONS:\n";
3446 } else {
3447 doprint "\nTEST $i OPTIONS";
3448 if (defined($repeat_tests{$i})) {
3449 $repeat = $repeat_tests{$i};
3450 doprint " ITERATE $repeat";
3451 }
3452 doprint "\n";
3453 }
3454
3455 foreach my $option (sort keys %opt) {
3456
3457 if ($option =~ /\[(\d+)\]$/) {
3458 next if ($i != $1);
3459 } else {
3460 next if ($i);
3461 }
3462
3463 doprint "$option = $opt{$option}\n";
3464 }
3465}
3466
3467sub __set_test_option {
3468 my ($name, $i) = @_;
3469
3470 my $option = "$name\[$i\]";
3471
3472 if (defined($opt{$option})) {
3473 return $opt{$option};
3474 }
3475
3476 foreach my $test (keys %repeat_tests) {
3477 if ($i >= $test &&
3478 $i < $test + $repeat_tests{$test}) {
3479 $option = "$name\[$test\]";
3480 if (defined($opt{$option})) {
3481 return $opt{$option};
3482 }
3483 }
3484 }
3485
3486 if (defined($opt{$name})) {
3487 return $opt{$name};
3488 }
3489
3490 return undef;
3491}
3492
3493sub set_test_option {
3494 my ($name, $i) = @_;
3495
3496 my $option = __set_test_option($name, $i);
3497 return $option if (!defined($option));
3498
3499 return eval_option($option, $i);
3500}
3501
3502# First we need to do is the builds
3503for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
3504
3505 # Do not reboot on failing test options
3506 $no_reboot = 1;
3507 $reboot_success = 0;
3508
3509 $have_version = 0;
3510
3511 $iteration = $i;
3512
3513 my $makecmd = set_test_option("MAKE_CMD", $i);
3514
3515 # Load all the options into their mapped variable names
3516 foreach my $opt (keys %option_map) {
3517 ${$option_map{$opt}} = set_test_option($opt, $i);
3518 }
3519
3520 $start_minconfig_defined = 1;
3521
3522 if (!defined($start_minconfig)) {
3523 $start_minconfig_defined = 0;
3524 $start_minconfig = $minconfig;
3525 }
3526
3527 chdir $builddir || die "can't change directory to $builddir";
3528
3529 foreach my $dir ($tmpdir, $outputdir) {
3530 if (!-d $dir) {
3531 mkpath($dir) or
3532 die "can't create $dir";
3533 }
3534 }
3535
3536 $ENV{"SSH_USER"} = $ssh_user;
3537 $ENV{"MACHINE"} = $machine;
3538
3539 $buildlog = "$tmpdir/buildlog-$machine";
3540 $testlog = "$tmpdir/testlog-$machine";
3541 $dmesg = "$tmpdir/dmesg-$machine";
3542 $make = "$makecmd O=$outputdir";
3543 $output_config = "$outputdir/.config";
3544
3545 if (!$buildonly) {
3546 $target = "$ssh_user\@$machine";
3547 if ($reboot_type eq "grub") {
3548 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
3549 }
3550 }
3551
3552 my $run_type = $build_type;
3553 if ($test_type eq "patchcheck") {
3554 $run_type = $patchcheck_type;
3555 } elsif ($test_type eq "bisect") {
3556 $run_type = $bisect_type;
3557 } elsif ($test_type eq "config_bisect") {
3558 $run_type = $config_bisect_type;
3559 }
3560
3561 if ($test_type eq "make_min_config") {
3562 $run_type = "";
3563 }
3564
3565 # mistake in config file?
3566 if (!defined($run_type)) {
3567 $run_type = "ERROR";
3568 }
3569
3570 my $installme = "";
3571 $installme = " no_install" if ($no_install);
3572
3573 doprint "\n\n";
3574 doprint "RUNNING TEST $i of $opt{NUM_TESTS} with option $test_type $run_type$installme\n\n";
3575
3576 unlink $dmesg;
3577 unlink $buildlog;
3578 unlink $testlog;
3579
3580 if (defined($addconfig)) {
3581 my $min = $minconfig;
3582 if (!defined($minconfig)) {
3583 $min = "";
3584 }
3585 run_command "cat $addconfig $min > $tmpdir/add_config" or
3586 dodie "Failed to create temp config";
3587 $minconfig = "$tmpdir/add_config";
3588 }
3589
3590 if (defined($checkout)) {
3591 run_command "git checkout $checkout" or
3592 die "failed to checkout $checkout";
3593 }
3594
3595 $no_reboot = 0;
3596
3597 # A test may opt to not reboot the box
3598 if ($reboot_on_success) {
3599 $reboot_success = 1;
3600 }
3601
3602 if ($test_type eq "bisect") {
3603 bisect $i;
3604 next;
3605 } elsif ($test_type eq "config_bisect") {
3606 config_bisect $i;
3607 next;
3608 } elsif ($test_type eq "patchcheck") {
3609 patchcheck $i;
3610 next;
3611 } elsif ($test_type eq "make_min_config") {
3612 make_min_config $i;
3613 next;
3614 }
3615
3616 if ($build_type ne "nobuild") {
3617 build $build_type or next;
3618 }
3619
3620 if ($test_type eq "install") {
3621 get_version;
3622 install;
3623 success $i;
3624 next;
3625 }
3626
3627 if ($test_type ne "build") {
3628 my $failed = 0;
3629 start_monitor_and_boot or $failed = 1;
3630
3631 if (!$failed && $test_type ne "boot" && defined($run_test)) {
3632 do_run_test or $failed = 1;
3633 }
3634 end_monitor;
3635 next if ($failed);
3636 }
3637
3638 success $i;
3639}
3640
3641if ($opt{"POWEROFF_ON_SUCCESS"}) {
3642 halt;
3643} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
3644 reboot_to_good;
3645} elsif (defined($switch_to_good)) {
3646 # still need to get to the good kernel
3647 run_command $switch_to_good;
3648}
3649
3650
3651doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
3652
3653exit 0;