Loading...
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 $run_timeout;
182my $connect_timeout;
183my $config_bisect_exec;
184my $booted_timeout;
185my $detect_triplefault;
186my $console;
187my $close_console_signal;
188my $reboot_success_line;
189my $success_line;
190my $stop_after_success;
191my $stop_after_failure;
192my $stop_test_after;
193my $build_target;
194my $target_image;
195my $checkout;
196my $localversion;
197my $iteration = 0;
198my $successes = 0;
199my $stty_orig;
200my $run_command_status = 0;
201
202my $bisect_good;
203my $bisect_bad;
204my $bisect_type;
205my $bisect_start;
206my $bisect_replay;
207my $bisect_files;
208my $bisect_reverse;
209my $bisect_check;
210
211my $config_bisect;
212my $config_bisect_type;
213my $config_bisect_check;
214
215my $patchcheck_type;
216my $patchcheck_start;
217my $patchcheck_cherry;
218my $patchcheck_end;
219
220my $build_time;
221my $install_time;
222my $reboot_time;
223my $test_time;
224
225my $warning_found = 0;
226
227my $pwd;
228my $dirname = $FindBin::Bin;
229
230my $mailto;
231my $mailer;
232my $mail_path;
233my $mail_max_size;
234my $mail_command;
235my $email_on_error;
236my $email_when_finished;
237my $email_when_started;
238my $email_when_canceled;
239
240my $script_start_time = localtime();
241
242# set when a test is something other that just building or install
243# which would require more options.
244my $buildonly = 1;
245
246# tell build not to worry about warnings, even when WARNINGS_FILE is set
247my $warnings_ok = 0;
248
249# set when creating a new config
250my $newconfig = 0;
251
252my %entered_configs;
253my %config_help;
254my %variable;
255
256# force_config is the list of configs that we force enabled (or disabled)
257# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
258my %force_config;
259
260# do not force reboots on config problems
261my $no_reboot = 1;
262
263# reboot on success
264my $reboot_success = 0;
265
266my %option_map = (
267 "MAILTO" => \$mailto,
268 "MAILER" => \$mailer,
269 "MAIL_PATH" => \$mail_path,
270 "MAIL_MAX_SIZE" => \$mail_max_size,
271 "MAIL_COMMAND" => \$mail_command,
272 "EMAIL_ON_ERROR" => \$email_on_error,
273 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
274 "EMAIL_WHEN_STARTED" => \$email_when_started,
275 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
276 "MACHINE" => \$machine,
277 "SSH_USER" => \$ssh_user,
278 "TMP_DIR" => \$tmpdir,
279 "OUTPUT_DIR" => \$outputdir,
280 "BUILD_DIR" => \$builddir,
281 "TEST_TYPE" => \$test_type,
282 "PRE_KTEST" => \$pre_ktest,
283 "POST_KTEST" => \$post_ktest,
284 "PRE_TEST" => \$pre_test,
285 "PRE_TEST_DIE" => \$pre_test_die,
286 "POST_TEST" => \$post_test,
287 "BUILD_TYPE" => \$build_type,
288 "BUILD_OPTIONS" => \$build_options,
289 "PRE_BUILD" => \$pre_build,
290 "POST_BUILD" => \$post_build,
291 "PRE_BUILD_DIE" => \$pre_build_die,
292 "POST_BUILD_DIE" => \$post_build_die,
293 "POWER_CYCLE" => \$power_cycle,
294 "REBOOT" => \$reboot,
295 "REBOOT_RETURN_CODE" => \$reboot_return_code,
296 "BUILD_NOCLEAN" => \$noclean,
297 "MIN_CONFIG" => \$minconfig,
298 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
299 "START_MIN_CONFIG" => \$start_minconfig,
300 "MIN_CONFIG_TYPE" => \$minconfig_type,
301 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
302 "WARNINGS_FILE" => \$warnings_file,
303 "IGNORE_CONFIG" => \$ignore_config,
304 "TEST" => \$run_test,
305 "ADD_CONFIG" => \$addconfig,
306 "REBOOT_TYPE" => \$reboot_type,
307 "GRUB_MENU" => \$grub_menu,
308 "GRUB_FILE" => \$grub_file,
309 "GRUB_REBOOT" => \$grub_reboot,
310 "GRUB_BLS_GET" => \$grub_bls_get,
311 "SYSLINUX" => \$syslinux,
312 "SYSLINUX_PATH" => \$syslinux_path,
313 "SYSLINUX_LABEL" => \$syslinux_label,
314 "PRE_INSTALL" => \$pre_install,
315 "POST_INSTALL" => \$post_install,
316 "NO_INSTALL" => \$no_install,
317 "REBOOT_SCRIPT" => \$reboot_script,
318 "REBOOT_ON_ERROR" => \$reboot_on_error,
319 "SWITCH_TO_GOOD" => \$switch_to_good,
320 "SWITCH_TO_TEST" => \$switch_to_test,
321 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
322 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
323 "DIE_ON_FAILURE" => \$die_on_failure,
324 "POWER_OFF" => \$power_off,
325 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
326 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
327 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
328 "SLEEP_TIME" => \$sleep_time,
329 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
330 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
331 "IGNORE_WARNINGS" => \$ignore_warnings,
332 "IGNORE_ERRORS" => \$ignore_errors,
333 "BISECT_MANUAL" => \$bisect_manual,
334 "BISECT_SKIP" => \$bisect_skip,
335 "BISECT_TRIES" => \$bisect_tries,
336 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
337 "BISECT_RET_GOOD" => \$bisect_ret_good,
338 "BISECT_RET_BAD" => \$bisect_ret_bad,
339 "BISECT_RET_SKIP" => \$bisect_ret_skip,
340 "BISECT_RET_ABORT" => \$bisect_ret_abort,
341 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
342 "STORE_FAILURES" => \$store_failures,
343 "STORE_SUCCESSES" => \$store_successes,
344 "TEST_NAME" => \$test_name,
345 "TIMEOUT" => \$timeout,
346 "RUN_TIMEOUT" => \$run_timeout,
347 "CONNECT_TIMEOUT" => \$connect_timeout,
348 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
349 "BOOTED_TIMEOUT" => \$booted_timeout,
350 "CONSOLE" => \$console,
351 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
352 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
353 "SUCCESS_LINE" => \$success_line,
354 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
355 "STOP_AFTER_SUCCESS" => \$stop_after_success,
356 "STOP_AFTER_FAILURE" => \$stop_after_failure,
357 "STOP_TEST_AFTER" => \$stop_test_after,
358 "BUILD_TARGET" => \$build_target,
359 "SSH_EXEC" => \$ssh_exec,
360 "SCP_TO_TARGET" => \$scp_to_target,
361 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
362 "CHECKOUT" => \$checkout,
363 "TARGET_IMAGE" => \$target_image,
364 "LOCALVERSION" => \$localversion,
365
366 "BISECT_GOOD" => \$bisect_good,
367 "BISECT_BAD" => \$bisect_bad,
368 "BISECT_TYPE" => \$bisect_type,
369 "BISECT_START" => \$bisect_start,
370 "BISECT_REPLAY" => \$bisect_replay,
371 "BISECT_FILES" => \$bisect_files,
372 "BISECT_REVERSE" => \$bisect_reverse,
373 "BISECT_CHECK" => \$bisect_check,
374
375 "CONFIG_BISECT" => \$config_bisect,
376 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
377 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
378
379 "PATCHCHECK_TYPE" => \$patchcheck_type,
380 "PATCHCHECK_START" => \$patchcheck_start,
381 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
382 "PATCHCHECK_END" => \$patchcheck_end,
383);
384
385# Options may be used by other options, record them.
386my %used_options;
387
388# default variables that can be used
389chomp ($variable{"PWD"} = `pwd`);
390$pwd = $variable{"PWD"};
391
392$config_help{"MACHINE"} = << "EOF"
393 The machine hostname that you will test.
394 For build only tests, it is still needed to differentiate log files.
395EOF
396 ;
397$config_help{"SSH_USER"} = << "EOF"
398 The box is expected to have ssh on normal bootup, provide the user
399 (most likely root, since you need privileged operations)
400EOF
401 ;
402$config_help{"BUILD_DIR"} = << "EOF"
403 The directory that contains the Linux source code (full path).
404 You can use \${PWD} that will be the path where ktest.pl is run, or use
405 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
406EOF
407 ;
408$config_help{"OUTPUT_DIR"} = << "EOF"
409 The directory that the objects will be built (full path).
410 (can not be same as BUILD_DIR)
411 You can use \${PWD} that will be the path where ktest.pl is run, or use
412 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
413EOF
414 ;
415$config_help{"BUILD_TARGET"} = << "EOF"
416 The location of the compiled file to copy to the target.
417 (relative to OUTPUT_DIR)
418EOF
419 ;
420$config_help{"BUILD_OPTIONS"} = << "EOF"
421 Options to add to \"make\" when building.
422 i.e. -j20
423EOF
424 ;
425$config_help{"TARGET_IMAGE"} = << "EOF"
426 The place to put your image on the test machine.
427EOF
428 ;
429$config_help{"POWER_CYCLE"} = << "EOF"
430 A script or command to reboot the box.
431
432 Here is a digital loggers power switch example
433 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
434
435 Here is an example to reboot a virtual box on the current host
436 with the name "Guest".
437 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
438EOF
439 ;
440$config_help{"CONSOLE"} = << "EOF"
441 The script or command that reads the console
442
443 If you use ttywatch server, something like the following would work.
444CONSOLE = nc -d localhost 3001
445
446 For a virtual machine with guest name "Guest".
447CONSOLE = virsh console Guest
448EOF
449 ;
450$config_help{"LOCALVERSION"} = << "EOF"
451 Required version ending to differentiate the test
452 from other linux builds on the system.
453EOF
454 ;
455$config_help{"REBOOT_TYPE"} = << "EOF"
456 Way to reboot the box to the test kernel.
457 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
458
459 If you specify grub, it will assume grub version 1
460 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
461 and select that target to reboot to the kernel. If this is not
462 your setup, then specify "script" and have a command or script
463 specified in REBOOT_SCRIPT to boot to the target.
464
465 The entry in /boot/grub/menu.lst must be entered in manually.
466 The test will not modify that file.
467
468 If you specify grub2, then you also need to specify both \$GRUB_MENU
469 and \$GRUB_FILE.
470
471 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
472
473 If you specify syslinux, then you may use SYSLINUX to define the syslinux
474 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
475 the syslinux install (defaults to /boot/extlinux). But you have to specify
476 SYSLINUX_LABEL to define the label to boot to for the test kernel.
477EOF
478 ;
479$config_help{"GRUB_MENU"} = << "EOF"
480 The grub title name for the test kernel to boot
481 (Only mandatory if REBOOT_TYPE = grub or grub2)
482
483 Note, ktest.pl will not update the grub menu.lst, you need to
484 manually add an option for the test. ktest.pl will search
485 the grub menu.lst for this option to find what kernel to
486 reboot into.
487
488 For example, if in the /boot/grub/menu.lst the test kernel title has:
489 title Test Kernel
490 kernel vmlinuz-test
491 GRUB_MENU = Test Kernel
492
493 For grub2, a search of \$GRUB_FILE is performed for the lines
494 that begin with "menuentry". It will not detect submenus. The
495 menu must be a non-nested menu. Add the quotes used in the menu
496 to guarantee your selection, as the first menuentry with the content
497 of \$GRUB_MENU that is found will be used.
498
499 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
500 command for the lines that begin with "title".
501EOF
502 ;
503$config_help{"GRUB_FILE"} = << "EOF"
504 If grub2 is used, the full path for the grub.cfg file is placed
505 here. Use something like /boot/grub2/grub.cfg to search.
506EOF
507 ;
508$config_help{"SYSLINUX_LABEL"} = << "EOF"
509 If syslinux is used, the label that boots the target kernel must
510 be specified with SYSLINUX_LABEL.
511EOF
512 ;
513$config_help{"REBOOT_SCRIPT"} = << "EOF"
514 A script to reboot the target into the test kernel
515 (Only mandatory if REBOOT_TYPE = script)
516EOF
517 ;
518
519# used with process_expression()
520my $d = 0;
521
522# defined before get_test_name()
523my $in_die = 0;
524
525# defined before process_warning_line()
526my $check_build_re = ".*:.*(warning|error|Error):.*";
527my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
528
529# defined before child_finished()
530my $child_done;
531
532# config_ignore holds the configs that were set (or unset) for
533# a good config and we will ignore these configs for the rest
534# of a config bisect. These configs stay as they were.
535my %config_ignore;
536
537# config_set holds what all configs were set as.
538my %config_set;
539
540# config_off holds the set of configs that the bad config had disabled.
541# We need to record them and set them in the .config when running
542# olddefconfig, because olddefconfig keeps the defaults.
543my %config_off;
544
545# config_off_tmp holds a set of configs to turn off for now
546my @config_off_tmp;
547
548# config_list is the set of configs that are being tested
549my %config_list;
550my %null_config;
551
552my %dependency;
553
554# found above run_config_bisect()
555my $pass = 1;
556
557# found above add_dep()
558
559my %depends;
560my %depcount;
561my $iflevel = 0;
562my @ifdeps;
563
564# prevent recursion
565my %read_kconfigs;
566
567# found above test_this_config()
568my %min_configs;
569my %keep_configs;
570my %save_configs;
571my %processed_configs;
572my %nochange_config;
573
574#
575# These are first defined here, main function later on
576#
577sub run_command;
578sub start_monitor;
579sub end_monitor;
580sub wait_for_monitor;
581
582sub _logit {
583 if (defined($opt{"LOG_FILE"})) {
584 print LOG @_;
585 }
586}
587
588sub logit {
589 if (defined($opt{"LOG_FILE"})) {
590 _logit @_;
591 } else {
592 print @_;
593 }
594}
595
596sub doprint {
597 print @_;
598 _logit @_;
599}
600
601sub read_prompt {
602 my ($cancel, $prompt) = @_;
603
604 my $ans;
605
606 for (;;) {
607 if ($cancel) {
608 print "$prompt [y/n/C] ";
609 } else {
610 print "$prompt [Y/n] ";
611 }
612 $ans = <STDIN>;
613 chomp $ans;
614 if ($ans =~ /^\s*$/) {
615 if ($cancel) {
616 $ans = "c";
617 } else {
618 $ans = "y";
619 }
620 }
621 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
622 if ($cancel) {
623 last if ($ans =~ /^c$/i);
624 print "Please answer either 'y', 'n' or 'c'.\n";
625 } else {
626 print "Please answer either 'y' or 'n'.\n";
627 }
628 }
629 if ($ans =~ /^c/i) {
630 exit;
631 }
632 if ($ans !~ /^y$/i) {
633 return 0;
634 }
635 return 1;
636}
637
638sub read_yn {
639 my ($prompt) = @_;
640
641 return read_prompt 0, $prompt;
642}
643
644sub read_ync {
645 my ($prompt) = @_;
646
647 return read_prompt 1, $prompt;
648}
649
650sub get_mandatory_config {
651 my ($config) = @_;
652 my $ans;
653
654 return if (defined($opt{$config}));
655
656 if (defined($config_help{$config})) {
657 print "\n";
658 print $config_help{$config};
659 }
660
661 for (;;) {
662 print "$config = ";
663 if (defined($default{$config}) && length($default{$config})) {
664 print "\[$default{$config}\] ";
665 }
666 $ans = <STDIN>;
667 $ans =~ s/^\s*(.*\S)\s*$/$1/;
668 if ($ans =~ /^\s*$/) {
669 if ($default{$config}) {
670 $ans = $default{$config};
671 } else {
672 print "Your answer can not be blank\n";
673 next;
674 }
675 }
676 $entered_configs{$config} = ${ans};
677 last;
678 }
679}
680
681sub show_time {
682 my ($time) = @_;
683
684 my $hours = 0;
685 my $minutes = 0;
686
687 if ($time > 3600) {
688 $hours = int($time / 3600);
689 $time -= $hours * 3600;
690 }
691 if ($time > 60) {
692 $minutes = int($time / 60);
693 $time -= $minutes * 60;
694 }
695
696 if ($hours > 0) {
697 doprint "$hours hour";
698 doprint "s" if ($hours > 1);
699 doprint " ";
700 }
701
702 if ($minutes > 0) {
703 doprint "$minutes minute";
704 doprint "s" if ($minutes > 1);
705 doprint " ";
706 }
707
708 doprint "$time second";
709 doprint "s" if ($time != 1);
710}
711
712sub print_times {
713 doprint "\n";
714 if ($build_time) {
715 doprint "Build time: ";
716 show_time($build_time);
717 doprint "\n";
718 }
719 if ($install_time) {
720 doprint "Install time: ";
721 show_time($install_time);
722 doprint "\n";
723 }
724 if ($reboot_time) {
725 doprint "Reboot time: ";
726 show_time($reboot_time);
727 doprint "\n";
728 }
729 if ($test_time) {
730 doprint "Test time: ";
731 show_time($test_time);
732 doprint "\n";
733 }
734 if ($warning_found) {
735 doprint "\n*** WARNING";
736 doprint "S" if ($warning_found > 1);
737 doprint " found in build: $warning_found ***\n\n";
738 }
739
740 # reset for iterations like bisect
741 $build_time = 0;
742 $install_time = 0;
743 $reboot_time = 0;
744 $test_time = 0;
745 $warning_found = 0;
746}
747
748sub get_mandatory_configs {
749 get_mandatory_config("MACHINE");
750 get_mandatory_config("BUILD_DIR");
751 get_mandatory_config("OUTPUT_DIR");
752
753 if ($newconfig) {
754 get_mandatory_config("BUILD_OPTIONS");
755 }
756
757 # options required for other than just building a kernel
758 if (!$buildonly) {
759 get_mandatory_config("POWER_CYCLE");
760 get_mandatory_config("CONSOLE");
761 }
762
763 # options required for install and more
764 if ($buildonly != 1) {
765 get_mandatory_config("SSH_USER");
766 get_mandatory_config("BUILD_TARGET");
767 get_mandatory_config("TARGET_IMAGE");
768 }
769
770 get_mandatory_config("LOCALVERSION");
771
772 return if ($buildonly);
773
774 my $rtype = $opt{"REBOOT_TYPE"};
775
776 if (!defined($rtype)) {
777 if (!defined($opt{"GRUB_MENU"})) {
778 get_mandatory_config("REBOOT_TYPE");
779 $rtype = $entered_configs{"REBOOT_TYPE"};
780 } else {
781 $rtype = "grub";
782 }
783 }
784
785 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
786 get_mandatory_config("GRUB_MENU");
787 }
788
789 if ($rtype eq "grub2") {
790 get_mandatory_config("GRUB_MENU");
791 get_mandatory_config("GRUB_FILE");
792 }
793
794 if ($rtype eq "syslinux") {
795 get_mandatory_config("SYSLINUX_LABEL");
796 }
797}
798
799sub process_variables {
800 my ($value, $remove_undef) = @_;
801 my $retval = "";
802
803 # We want to check for '\', and it is just easier
804 # to check the previous character of '$' and not need
805 # to worry if '$' is the first character. By adding
806 # a space to $value, we can just check [^\\]\$ and
807 # it will still work.
808 $value = " $value";
809
810 while ($value =~ /(.*?[^\\])\$\{([^\{]*?)\}(.*)/) {
811 my $begin = $1;
812 my $var = $2;
813 my $end = $3;
814 # append beginning of value to retval
815 $retval = "$retval$begin";
816 if ($var =~ s/^shell\s+//) {
817 $retval = `$var`;
818 if ($?) {
819 doprint "WARNING: $var returned an error\n";
820 } else {
821 chomp $retval;
822 }
823 } elsif (defined($variable{$var})) {
824 $retval = "$retval$variable{$var}";
825 } elsif (defined($remove_undef) && $remove_undef) {
826 # for if statements, any variable that is not defined,
827 # we simple convert to 0
828 $retval = "${retval}0";
829 } else {
830 # put back the origin piece, but with $#### to not reprocess it
831 $retval = "$retval\$####\{$var\}";
832 # This could be an option that is used later, save
833 # it so we don't warn if this option is not one of
834 # ktests options.
835 $used_options{$var} = 1;
836 }
837 $value = "$retval$end";
838 $retval = "";
839 }
840 $retval = $value;
841
842 # Convert the saved variables with $####{var} back to ${var}
843 $retval =~ s/\$####/\$/g;
844
845 # remove the space added in the beginning
846 $retval =~ s/ //;
847
848 return "$retval";
849}
850
851sub set_value {
852 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
853
854 my $prvalue = process_variables($rvalue);
855
856 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
857 $prvalue !~ /^(config_|)bisect$/ &&
858 $prvalue !~ /^build$/ &&
859 $prvalue !~ /^make_warnings_file$/ &&
860 $buildonly) {
861
862 # Note if a test is something other than build, then we
863 # will need other mandatory options.
864 if ($prvalue ne "install") {
865 $buildonly = 0;
866 } else {
867 # install still limits some mandatory options.
868 $buildonly = 2;
869 }
870 }
871
872 if (defined($opt{$lvalue})) {
873 if (!$override || defined(${$overrides}{$lvalue})) {
874 my $extra = "";
875 if ($override) {
876 $extra = "In the same override section!\n";
877 }
878 die "$name: $.: Option $lvalue defined more than once!\n$extra";
879 }
880 ${$overrides}{$lvalue} = $prvalue;
881 }
882
883 $opt{$lvalue} = $prvalue;
884}
885
886sub set_eval {
887 my ($lvalue, $rvalue, $name) = @_;
888
889 my $prvalue = process_variables($rvalue);
890 my $arr;
891
892 if (defined($evals{$lvalue})) {
893 $arr = $evals{$lvalue};
894 } else {
895 $arr = [];
896 $evals{$lvalue} = $arr;
897 }
898
899 push @{$arr}, $rvalue;
900}
901
902sub set_variable {
903 my ($lvalue, $rvalue) = @_;
904
905 if ($rvalue =~ /^\s*$/) {
906 delete $variable{$lvalue};
907 } else {
908 $rvalue = process_variables($rvalue);
909 $variable{$lvalue} = $rvalue;
910 }
911}
912
913sub process_compare {
914 my ($lval, $cmp, $rval) = @_;
915
916 # remove whitespace
917
918 $lval =~ s/^\s*//;
919 $lval =~ s/\s*$//;
920
921 $rval =~ s/^\s*//;
922 $rval =~ s/\s*$//;
923
924 if ($cmp eq "==") {
925 return $lval eq $rval;
926 } elsif ($cmp eq "!=") {
927 return $lval ne $rval;
928 } elsif ($cmp eq "=~") {
929 return $lval =~ m/$rval/;
930 } elsif ($cmp eq "!~") {
931 return $lval !~ m/$rval/;
932 }
933
934 my $statement = "$lval $cmp $rval";
935 my $ret = eval $statement;
936
937 # $@ stores error of eval
938 if ($@) {
939 return -1;
940 }
941
942 return $ret;
943}
944
945sub value_defined {
946 my ($val) = @_;
947
948 return defined($variable{$2}) ||
949 defined($opt{$2});
950}
951
952sub process_expression {
953 my ($name, $val) = @_;
954
955 my $c = $d++;
956
957 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
958 my $express = $1;
959
960 if (process_expression($name, $express)) {
961 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
962 } else {
963 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
964 }
965 }
966
967 $d--;
968 my $OR = "\\|\\|";
969 my $AND = "\\&\\&";
970
971 while ($val =~ s/^(.*?)($OR|$AND)//) {
972 my $express = $1;
973 my $op = $2;
974
975 if (process_expression($name, $express)) {
976 if ($op eq "||") {
977 return 1;
978 }
979 } else {
980 if ($op eq "&&") {
981 return 0;
982 }
983 }
984 }
985
986 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
987 my $ret = process_compare($1, $2, $3);
988 if ($ret < 0) {
989 die "$name: $.: Unable to process comparison\n";
990 }
991 return $ret;
992 }
993
994 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
995 if (defined $1) {
996 return !value_defined($2);
997 } else {
998 return value_defined($2);
999 }
1000 }
1001
1002 if ($val =~ s/^\s*NOT\s+(.*)//) {
1003 my $express = $1;
1004 my $ret = process_expression($name, $express);
1005 return !$ret;
1006 }
1007
1008 if ($val =~ /^\s*0\s*$/) {
1009 return 0;
1010 } elsif ($val =~ /^\s*\d+\s*$/) {
1011 return 1;
1012 }
1013
1014 die ("$name: $.: Undefined content $val in if statement\n");
1015}
1016
1017sub process_if {
1018 my ($name, $value) = @_;
1019
1020 # Convert variables and replace undefined ones with 0
1021 my $val = process_variables($value, 1);
1022 my $ret = process_expression $name, $val;
1023
1024 return $ret;
1025}
1026
1027sub __read_config {
1028 my ($config, $current_test_num) = @_;
1029
1030 my $in;
1031 open($in, $config) || die "can't read file $config";
1032
1033 my $name = $config;
1034 $name =~ s,.*/(.*),$1,;
1035
1036 my $test_num = $$current_test_num;
1037 my $default = 1;
1038 my $repeat = 1;
1039 my $num_tests_set = 0;
1040 my $skip = 0;
1041 my $rest;
1042 my $line;
1043 my $test_case = 0;
1044 my $if = 0;
1045 my $if_set = 0;
1046 my $override = 0;
1047
1048 my %overrides;
1049
1050 while (<$in>) {
1051
1052 # ignore blank lines and comments
1053 next if (/^\s*$/ || /\s*\#/);
1054
1055 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1056
1057 my $type = $1;
1058 $rest = $2;
1059 $line = $2;
1060
1061 my $old_test_num;
1062 my $old_repeat;
1063 $override = 0;
1064
1065 if ($type eq "TEST_START") {
1066 if ($num_tests_set) {
1067 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1068 }
1069
1070 $old_test_num = $test_num;
1071 $old_repeat = $repeat;
1072
1073 $test_num += $repeat;
1074 $default = 0;
1075 $repeat = 1;
1076 } else {
1077 $default = 1;
1078 }
1079
1080 # If SKIP is anywhere in the line, the command will be skipped
1081 if ($rest =~ s/\s+SKIP\b//) {
1082 $skip = 1;
1083 } else {
1084 $test_case = 1;
1085 $skip = 0;
1086 }
1087
1088 if ($rest =~ s/\sELSE\b//) {
1089 if (!$if) {
1090 die "$name: $.: ELSE found with out matching IF section\n$_";
1091 }
1092 $if = 0;
1093
1094 if ($if_set) {
1095 $skip = 1;
1096 } else {
1097 $skip = 0;
1098 }
1099 }
1100
1101 if ($rest =~ s/\sIF\s+(.*)//) {
1102 if (process_if($name, $1)) {
1103 $if_set = 1;
1104 } else {
1105 $skip = 1;
1106 }
1107 $if = 1;
1108 } else {
1109 $if = 0;
1110 $if_set = 0;
1111 }
1112
1113 if (!$skip) {
1114 if ($type eq "TEST_START") {
1115 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1116 $repeat = $1;
1117 $repeat_tests{"$test_num"} = $repeat;
1118 }
1119 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1120 # DEFAULT only
1121 $override = 1;
1122 # Clear previous overrides
1123 %overrides = ();
1124 }
1125 }
1126
1127 if (!$skip && $rest !~ /^\s*$/) {
1128 die "$name: $.: Garbage found after $type\n$_";
1129 }
1130
1131 if ($skip && $type eq "TEST_START") {
1132 $test_num = $old_test_num;
1133 $repeat = $old_repeat;
1134 }
1135 } elsif (/^\s*ELSE\b(.*)$/) {
1136 if (!$if) {
1137 die "$name: $.: ELSE found with out matching IF section\n$_";
1138 }
1139 $rest = $1;
1140 if ($if_set) {
1141 $skip = 1;
1142 $rest = "";
1143 } else {
1144 $skip = 0;
1145
1146 if ($rest =~ /\sIF\s+(.*)/) {
1147 # May be a ELSE IF section.
1148 if (process_if($name, $1)) {
1149 $if_set = 1;
1150 } else {
1151 $skip = 1;
1152 }
1153 $rest = "";
1154 } else {
1155 $if = 0;
1156 }
1157 }
1158
1159 if ($rest !~ /^\s*$/) {
1160 die "$name: $.: Garbage found after DEFAULTS\n$_";
1161 }
1162
1163 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1164
1165 next if ($skip);
1166
1167 if (!$default) {
1168 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1169 }
1170
1171 my $file = process_variables($1);
1172
1173 if ($file !~ m,^/,) {
1174 # check the path of the config file first
1175 if ($config =~ m,(.*)/,) {
1176 if (-f "$1/$file") {
1177 $file = "$1/$file";
1178 }
1179 }
1180 }
1181
1182 if ( ! -r $file ) {
1183 die "$name: $.: Can't read file $file\n$_";
1184 }
1185
1186 if (__read_config($file, \$test_num)) {
1187 $test_case = 1;
1188 }
1189
1190 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1191
1192 next if ($skip);
1193
1194 my $lvalue = $1;
1195 my $rvalue = $2;
1196
1197 if ($default || $lvalue =~ /\[\d+\]$/) {
1198 set_eval($lvalue, $rvalue, $name);
1199 } else {
1200 my $val = "$lvalue\[$test_num\]";
1201 set_eval($val, $rvalue, $name);
1202 }
1203
1204 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1205
1206 next if ($skip);
1207
1208 my $lvalue = $1;
1209 my $rvalue = $2;
1210
1211 if (!$default &&
1212 ($lvalue eq "NUM_TESTS" ||
1213 $lvalue eq "LOG_FILE" ||
1214 $lvalue eq "CLEAR_LOG")) {
1215 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1216 }
1217
1218 if ($lvalue eq "NUM_TESTS") {
1219 if ($test_num) {
1220 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1221 }
1222 if (!$default) {
1223 die "$name: $.: NUM_TESTS must be set in default section\n";
1224 }
1225 $num_tests_set = 1;
1226 }
1227
1228 if ($default || $lvalue =~ /\[\d+\]$/) {
1229 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1230 } else {
1231 my $val = "$lvalue\[$test_num\]";
1232 set_value($val, $rvalue, $override, \%overrides, $name);
1233
1234 if ($repeat > 1) {
1235 $repeats{$val} = $repeat;
1236 }
1237 }
1238 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1239 next if ($skip);
1240
1241 my $lvalue = $1;
1242 my $rvalue = $2;
1243
1244 # process config variables.
1245 # Config variables are only active while reading the
1246 # config and can be defined anywhere. They also ignore
1247 # TEST_START and DEFAULTS, but are skipped if they are in
1248 # on of these sections that have SKIP defined.
1249 # The save variable can be
1250 # defined multiple times and the new one simply overrides
1251 # the previous one.
1252 set_variable($lvalue, $rvalue);
1253
1254 } else {
1255 die "$name: $.: Garbage found in config\n$_";
1256 }
1257 }
1258
1259 if ($test_num) {
1260 $test_num += $repeat - 1;
1261 $opt{"NUM_TESTS"} = $test_num;
1262 }
1263
1264 close($in);
1265
1266 $$current_test_num = $test_num;
1267
1268 return $test_case;
1269}
1270
1271sub get_test_case {
1272 print "What test case would you like to run?\n";
1273 print " (build, install or boot)\n";
1274 print " Other tests are available but require editing ktest.conf\n";
1275 print " (see tools/testing/ktest/sample.conf)\n";
1276 my $ans = <STDIN>;
1277 chomp $ans;
1278 $default{"TEST_TYPE"} = $ans;
1279}
1280
1281sub read_config {
1282 my ($config) = @_;
1283
1284 my $test_case;
1285 my $test_num = 0;
1286
1287 $test_case = __read_config $config, \$test_num;
1288
1289 # make sure we have all mandatory configs
1290 get_mandatory_configs;
1291
1292 # was a test specified?
1293 if (!$test_case) {
1294 print "No test case specified.\n";
1295 get_test_case;
1296 }
1297
1298 # set any defaults
1299
1300 foreach my $default (keys %default) {
1301 if (!defined($opt{$default})) {
1302 $opt{$default} = $default{$default};
1303 }
1304 }
1305
1306 if ($opt{"IGNORE_UNUSED"} == 1) {
1307 return;
1308 }
1309
1310 my %not_used;
1311
1312 # check if there are any stragglers (typos?)
1313 foreach my $option (keys %opt) {
1314 my $op = $option;
1315 # remove per test labels.
1316 $op =~ s/\[.*\]//;
1317 if (!exists($option_map{$op}) &&
1318 !exists($default{$op}) &&
1319 !exists($used_options{$op})) {
1320 $not_used{$op} = 1;
1321 }
1322 }
1323
1324 if (%not_used) {
1325 my $s = "s are";
1326 $s = " is" if (keys %not_used == 1);
1327 print "The following option$s not used; could be a typo:\n";
1328 foreach my $option (keys %not_used) {
1329 print "$option\n";
1330 }
1331 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1332 if (!read_yn "Do you want to continue?") {
1333 exit -1;
1334 }
1335 }
1336}
1337
1338sub __eval_option {
1339 my ($name, $option, $i) = @_;
1340
1341 # Add space to evaluate the character before $
1342 $option = " $option";
1343 my $retval = "";
1344 my $repeated = 0;
1345 my $parent = 0;
1346
1347 foreach my $test (keys %repeat_tests) {
1348 if ($i >= $test &&
1349 $i < $test + $repeat_tests{$test}) {
1350
1351 $repeated = 1;
1352 $parent = $test;
1353 last;
1354 }
1355 }
1356
1357 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1358 my $start = $1;
1359 my $var = $2;
1360 my $end = $3;
1361
1362 # Append beginning of line
1363 $retval = "$retval$start";
1364
1365 # If the iteration option OPT[$i] exists, then use that.
1366 # otherwise see if the default OPT (without [$i]) exists.
1367
1368 my $o = "$var\[$i\]";
1369 my $parento = "$var\[$parent\]";
1370
1371 # If a variable contains itself, use the default var
1372 if (($var eq $name) && defined($opt{$var})) {
1373 $o = $opt{$var};
1374 $retval = "$retval$o";
1375 } elsif (defined($opt{$o})) {
1376 $o = $opt{$o};
1377 $retval = "$retval$o";
1378 } elsif ($repeated && defined($opt{$parento})) {
1379 $o = $opt{$parento};
1380 $retval = "$retval$o";
1381 } elsif (defined($opt{$var})) {
1382 $o = $opt{$var};
1383 $retval = "$retval$o";
1384 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1385 # special option KERNEL_VERSION uses kernel version
1386 get_version();
1387 $retval = "$retval$version";
1388 } else {
1389 $retval = "$retval\$\{$var\}";
1390 }
1391
1392 $option = $end;
1393 }
1394
1395 $retval = "$retval$option";
1396
1397 $retval =~ s/^ //;
1398
1399 return $retval;
1400}
1401
1402sub process_evals {
1403 my ($name, $option, $i) = @_;
1404
1405 my $option_name = "$name\[$i\]";
1406 my $ev;
1407
1408 my $old_option = $option;
1409
1410 if (defined($evals{$option_name})) {
1411 $ev = $evals{$option_name};
1412 } elsif (defined($evals{$name})) {
1413 $ev = $evals{$name};
1414 } else {
1415 return $option;
1416 }
1417
1418 for my $e (@{$ev}) {
1419 eval "\$option =~ $e";
1420 }
1421
1422 if ($option ne $old_option) {
1423 doprint("$name changed from '$old_option' to '$option'\n");
1424 }
1425
1426 return $option;
1427}
1428
1429sub eval_option {
1430 my ($name, $option, $i) = @_;
1431
1432 my $prev = "";
1433
1434 # Since an option can evaluate to another option,
1435 # keep iterating until we do not evaluate any more
1436 # options.
1437 my $r = 0;
1438 while ($prev ne $option) {
1439 # Check for recursive evaluations.
1440 # 100 deep should be more than enough.
1441 if ($r++ > 100) {
1442 die "Over 100 evaluations occurred with $option\n" .
1443 "Check for recursive variables\n";
1444 }
1445 $prev = $option;
1446 $option = __eval_option($name, $option, $i);
1447 }
1448
1449 $option = process_evals($name, $option, $i);
1450
1451 return $option;
1452}
1453
1454sub reboot {
1455 my ($time) = @_;
1456 my $powercycle = 0;
1457
1458 # test if the machine can be connected to within a few seconds
1459 my $stat = run_ssh("echo check machine status", $connect_timeout);
1460 if (!$stat) {
1461 doprint("power cycle\n");
1462 $powercycle = 1;
1463 }
1464
1465 if ($powercycle) {
1466 run_command "$power_cycle";
1467
1468 start_monitor;
1469 # flush out current monitor
1470 # May contain the reboot success line
1471 wait_for_monitor 1;
1472
1473 } else {
1474 # Make sure everything has been written to disk
1475 run_ssh("sync", 10);
1476
1477 if (defined($time)) {
1478 start_monitor;
1479 # flush out current monitor
1480 # May contain the reboot success line
1481 wait_for_monitor 1;
1482 }
1483
1484 # try to reboot normally
1485 if (run_command $reboot) {
1486 if (defined($powercycle_after_reboot)) {
1487 sleep $powercycle_after_reboot;
1488 run_command "$power_cycle";
1489 }
1490 } else {
1491 # nope? power cycle it.
1492 run_command "$power_cycle";
1493 }
1494 }
1495
1496 if (defined($time)) {
1497
1498 # We only want to get to the new kernel, don't fail
1499 # if we stumble over a call trace.
1500 my $save_ignore_errors = $ignore_errors;
1501 $ignore_errors = 1;
1502
1503 # Look for the good kernel to boot
1504 if (wait_for_monitor($time, "Linux version")) {
1505 # reboot got stuck?
1506 doprint "Reboot did not finish. Forcing power cycle\n";
1507 run_command "$power_cycle";
1508 }
1509
1510 $ignore_errors = $save_ignore_errors;
1511
1512 # Still need to wait for the reboot to finish
1513 wait_for_monitor($time, $reboot_success_line);
1514 }
1515 if ($powercycle || $time) {
1516 end_monitor;
1517 }
1518}
1519
1520sub reboot_to_good {
1521 my ($time) = @_;
1522
1523 if (defined($switch_to_good)) {
1524 run_command $switch_to_good;
1525 }
1526
1527 reboot $time;
1528}
1529
1530sub do_not_reboot {
1531 my $i = $iteration;
1532
1533 return $test_type eq "build" || $no_reboot ||
1534 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1535 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1536 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1537}
1538
1539sub get_test_name() {
1540 my $name;
1541
1542 if (defined($test_name)) {
1543 $name = "$test_name:$test_type";
1544 } else {
1545 $name = $test_type;
1546 }
1547 return $name;
1548}
1549
1550sub dodie {
1551 # avoid recursion
1552 return if ($in_die);
1553 $in_die = 1;
1554
1555 if ($monitor_cnt) {
1556 # restore terminal settings
1557 system("stty $stty_orig");
1558 }
1559
1560 my $i = $iteration;
1561
1562 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1563
1564 if ($reboot_on_error && !do_not_reboot) {
1565 doprint "REBOOTING\n";
1566 reboot_to_good;
1567 } elsif ($poweroff_on_error && defined($power_off)) {
1568 doprint "POWERING OFF\n";
1569 `$power_off`;
1570 }
1571
1572 if (defined($opt{"LOG_FILE"})) {
1573 print " See $opt{LOG_FILE} for more info.\n";
1574 }
1575
1576 if ($email_on_error) {
1577 my $name = get_test_name;
1578 my $log_file;
1579
1580 if (defined($opt{"LOG_FILE"})) {
1581 my $whence = 2; # End of file
1582 my $log_size = tell LOG;
1583 my $size = $log_size - $test_log_start;
1584
1585 if (defined($mail_max_size)) {
1586 if ($size > $mail_max_size) {
1587 $size = $mail_max_size;
1588 }
1589 }
1590 my $pos = - $size;
1591 $log_file = "$tmpdir/log";
1592 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1593 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1594 seek(L, $pos, $whence);
1595 while (<L>) {
1596 print O;
1597 }
1598 close O;
1599 close L;
1600 }
1601
1602 send_email("KTEST: critical failure for test $i [$name]",
1603 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1604 }
1605
1606 if (defined($post_test)) {
1607 run_command $post_test;
1608 }
1609
1610 die @_, "\n";
1611}
1612
1613sub create_pty {
1614 my ($ptm, $pts) = @_;
1615 my $tmp;
1616 my $TIOCSPTLCK = 0x40045431;
1617 my $TIOCGPTN = 0x80045430;
1618
1619 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1620 dodie "Can't open /dev/ptmx";
1621
1622 # unlockpt()
1623 $tmp = pack("i", 0);
1624 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1625 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1626
1627 # ptsname()
1628 ioctl($ptm, $TIOCGPTN, $tmp) or
1629 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1630 $tmp = unpack("i", $tmp);
1631
1632 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1633 dodie "Can't open /dev/pts/$tmp";
1634}
1635
1636sub exec_console {
1637 my ($ptm, $pts) = @_;
1638
1639 close($ptm);
1640
1641 close(\*STDIN);
1642 close(\*STDOUT);
1643 close(\*STDERR);
1644
1645 open(\*STDIN, '<&', $pts);
1646 open(\*STDOUT, '>&', $pts);
1647 open(\*STDERR, '>&', $pts);
1648
1649 close($pts);
1650
1651 exec $console or
1652 dodie "Can't open console $console";
1653}
1654
1655sub open_console {
1656 my ($ptm) = @_;
1657 my $pts = \*PTSFD;
1658 my $pid;
1659
1660 # save terminal settings
1661 $stty_orig = `stty -g`;
1662
1663 # place terminal in cbreak mode so that stdin can be read one character at
1664 # a time without having to wait for a newline
1665 system("stty -icanon -echo -icrnl");
1666
1667 create_pty($ptm, $pts);
1668
1669 $pid = fork;
1670
1671 if (!$pid) {
1672 # child
1673 exec_console($ptm, $pts)
1674 }
1675
1676 # parent
1677 close($pts);
1678
1679 return $pid;
1680
1681 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1682}
1683
1684sub close_console {
1685 my ($fp, $pid) = @_;
1686
1687 doprint "kill child process $pid\n";
1688 kill $close_console_signal, $pid;
1689
1690 doprint "wait for child process $pid to exit\n";
1691 waitpid($pid, 0);
1692
1693 print "closing!\n";
1694 close($fp);
1695
1696 # restore terminal settings
1697 system("stty $stty_orig");
1698}
1699
1700sub start_monitor {
1701 if ($monitor_cnt++) {
1702 return;
1703 }
1704 $monitor_fp = \*MONFD;
1705 $monitor_pid = open_console $monitor_fp;
1706
1707 return;
1708
1709 open(MONFD, "Stop perl from warning about single use of MONFD");
1710}
1711
1712sub end_monitor {
1713 return if (!defined $console);
1714 if (--$monitor_cnt) {
1715 return;
1716 }
1717 close_console($monitor_fp, $monitor_pid);
1718}
1719
1720sub wait_for_monitor {
1721 my ($time, $stop) = @_;
1722 my $full_line = "";
1723 my $line;
1724 my $booted = 0;
1725 my $start_time = time;
1726 my $skip_call_trace = 0;
1727 my $bug = 0;
1728 my $bug_ignored = 0;
1729 my $now;
1730
1731 doprint "** Wait for monitor to settle down **\n";
1732
1733 # read the monitor and wait for the system to calm down
1734 while (!$booted) {
1735 $line = wait_for_input($monitor_fp, $time);
1736 last if (!defined($line));
1737 print "$line";
1738 $full_line .= $line;
1739
1740 if (defined($stop) && $full_line =~ /$stop/) {
1741 doprint "wait for monitor detected $stop\n";
1742 $booted = 1;
1743 }
1744
1745 if ($full_line =~ /\[ backtrace testing \]/) {
1746 $skip_call_trace = 1;
1747 }
1748
1749 if ($full_line =~ /call trace:/i) {
1750 if (!$bug && !$skip_call_trace) {
1751 if ($ignore_errors) {
1752 $bug_ignored = 1;
1753 } else {
1754 $bug = 1;
1755 }
1756 }
1757 }
1758
1759 if ($full_line =~ /\[ end of backtrace testing \]/) {
1760 $skip_call_trace = 0;
1761 }
1762
1763 if ($full_line =~ /Kernel panic -/) {
1764 $bug = 1;
1765 }
1766
1767 if ($line =~ /\n/) {
1768 $full_line = "";
1769 }
1770 $now = time;
1771 if ($now - $start_time >= $max_monitor_wait) {
1772 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1773 return 1;
1774 }
1775 }
1776 print "** Monitor flushed **\n";
1777
1778 # if stop is defined but wasn't hit, return error
1779 # used by reboot (which wants to see a reboot)
1780 if (defined($stop) && !$booted) {
1781 $bug = 1;
1782 }
1783 return $bug;
1784}
1785
1786sub save_logs {
1787 my ($result, $basedir) = @_;
1788 my @t = localtime;
1789 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1790 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1791
1792 my $type = $build_type;
1793 if ($type =~ /useconfig/) {
1794 $type = "useconfig";
1795 }
1796
1797 my $dir = "$machine-$test_type-$type-$result-$date";
1798
1799 $dir = "$basedir/$dir";
1800
1801 if (!-d $dir) {
1802 mkpath($dir) or
1803 dodie "can't create $dir";
1804 }
1805
1806 my %files = (
1807 "config" => $output_config,
1808 "buildlog" => $buildlog,
1809 "dmesg" => $dmesg,
1810 "testlog" => $testlog,
1811 );
1812
1813 while (my ($name, $source) = each(%files)) {
1814 if (-f "$source") {
1815 cp "$source", "$dir/$name" or
1816 dodie "failed to copy $source";
1817 }
1818 }
1819
1820 doprint "*** Saved info to $dir ***\n";
1821}
1822
1823sub fail {
1824
1825 if ($die_on_failure) {
1826 dodie @_;
1827 }
1828
1829 doprint "FAILED\n";
1830
1831 my $i = $iteration;
1832
1833 # no need to reboot for just building.
1834 if (!do_not_reboot) {
1835 doprint "REBOOTING\n";
1836 reboot_to_good $sleep_time;
1837 }
1838
1839 my $name = "";
1840
1841 if (defined($test_name)) {
1842 $name = " ($test_name)";
1843 }
1844
1845 print_times;
1846
1847 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1848 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1849 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1850 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1851 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1852
1853 if (defined($store_failures)) {
1854 save_logs "fail", $store_failures;
1855 }
1856
1857 if (defined($post_test)) {
1858 run_command $post_test;
1859 }
1860
1861 return 1;
1862}
1863
1864sub run_command {
1865 my ($command, $redirect, $timeout) = @_;
1866 my $start_time;
1867 my $end_time;
1868 my $dolog = 0;
1869 my $dord = 0;
1870 my $dostdout = 0;
1871 my $pid;
1872 my $command_orig = $command;
1873
1874 $command =~ s/\$SSH_USER/$ssh_user/g;
1875 $command =~ s/\$MACHINE/$machine/g;
1876
1877 if (!defined($timeout)) {
1878 $timeout = $run_timeout;
1879 }
1880
1881 if (!defined($timeout)) {
1882 $timeout = -1; # tell wait_for_input to wait indefinitely
1883 }
1884
1885 doprint("$command ... ");
1886 $start_time = time;
1887
1888 $pid = open(CMD, "$command 2>&1 |") or
1889 (fail "unable to exec $command" and return 0);
1890
1891 if (defined($opt{"LOG_FILE"})) {
1892 $dolog = 1;
1893 }
1894
1895 if (defined($redirect)) {
1896 if ($redirect eq 1) {
1897 $dostdout = 1;
1898 # Have the output of the command on its own line
1899 doprint "\n";
1900 } else {
1901 open (RD, ">$redirect") or
1902 dodie "failed to write to redirect $redirect";
1903 $dord = 1;
1904 }
1905 }
1906
1907 my $hit_timeout = 0;
1908
1909 while (1) {
1910 my $fp = \*CMD;
1911 my $line = wait_for_input($fp, $timeout);
1912 if (!defined($line)) {
1913 my $now = time;
1914 if ($timeout >= 0 && (($now - $start_time) >= $timeout)) {
1915 doprint "Hit timeout of $timeout, killing process\n";
1916 $hit_timeout = 1;
1917 kill 9, $pid;
1918 }
1919 last;
1920 }
1921 print LOG $line if ($dolog);
1922 print RD $line if ($dord);
1923 print $line if ($dostdout);
1924 }
1925
1926 waitpid($pid, 0);
1927 # shift 8 for real exit status
1928 $run_command_status = $? >> 8;
1929
1930 if ($command_orig eq $default{REBOOT} &&
1931 $run_command_status == $reboot_return_code) {
1932 $run_command_status = 0;
1933 }
1934
1935 close(CMD);
1936 close(RD) if ($dord);
1937
1938 $end_time = time;
1939 my $delta = $end_time - $start_time;
1940
1941 if ($delta == 1) {
1942 doprint "[1 second] ";
1943 } else {
1944 doprint "[$delta seconds] ";
1945 }
1946
1947 if ($hit_timeout) {
1948 $run_command_status = 1;
1949 }
1950
1951 if ($run_command_status) {
1952 doprint "FAILED!\n";
1953 } else {
1954 doprint "SUCCESS\n";
1955 }
1956
1957 return !$run_command_status;
1958}
1959
1960sub run_ssh {
1961 my ($cmd, $timeout) = @_;
1962 my $cp_exec = $ssh_exec;
1963
1964 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1965 return run_command "$cp_exec", undef , $timeout;
1966}
1967
1968sub run_scp {
1969 my ($src, $dst, $cp_scp) = @_;
1970
1971 $cp_scp =~ s/\$SRC_FILE/$src/g;
1972 $cp_scp =~ s/\$DST_FILE/$dst/g;
1973
1974 return run_command "$cp_scp";
1975}
1976
1977sub run_scp_install {
1978 my ($src, $dst) = @_;
1979
1980 my $cp_scp = $scp_to_target_install;
1981
1982 return run_scp($src, $dst, $cp_scp);
1983}
1984
1985sub run_scp_mod {
1986 my ($src, $dst) = @_;
1987
1988 my $cp_scp = $scp_to_target;
1989
1990 return run_scp($src, $dst, $cp_scp);
1991}
1992
1993sub _get_grub_index {
1994
1995 my ($command, $target, $skip, $submenu) = @_;
1996
1997 return if (defined($grub_number) && defined($last_grub_menu) &&
1998 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1999 $last_machine eq $machine);
2000
2001 doprint "Find $reboot_type menu ... ";
2002 $grub_number = -1;
2003
2004 my $ssh_grub = $ssh_exec;
2005 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
2006
2007 open(IN, "$ssh_grub |") or
2008 dodie "unable to execute $command";
2009
2010 my $found = 0;
2011
2012 my $submenu_number = 0;
2013
2014 while (<IN>) {
2015 if (/$target/) {
2016 $grub_number++;
2017 $found = 1;
2018 last;
2019 } elsif (defined($submenu) && /$submenu/) {
2020 $submenu_number++;
2021 $grub_number = -1;
2022 } elsif (/$skip/) {
2023 $grub_number++;
2024 }
2025 }
2026 close(IN);
2027
2028 dodie "Could not find '$grub_menu' through $command on $machine"
2029 if (!$found);
2030 if ($submenu_number > 0) {
2031 $grub_number = "$submenu_number>$grub_number";
2032 }
2033 doprint "$grub_number\n";
2034 $last_grub_menu = $grub_menu;
2035 $last_machine = $machine;
2036}
2037
2038sub get_grub_index {
2039
2040 my $command;
2041 my $target;
2042 my $skip;
2043 my $submenu;
2044 my $grub_menu_qt;
2045
2046 if ($reboot_type !~ /^grub/) {
2047 return;
2048 }
2049
2050 $grub_menu_qt = quotemeta($grub_menu);
2051
2052 if ($reboot_type eq "grub") {
2053 $command = "cat /boot/grub/menu.lst";
2054 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2055 $skip = '^\s*title\s';
2056 } elsif ($reboot_type eq "grub2") {
2057 $command = "cat $grub_file";
2058 $target = '^\s*menuentry.*' . $grub_menu_qt;
2059 $skip = '^\s*menuentry\s';
2060 $submenu = '^\s*submenu\s';
2061 } elsif ($reboot_type eq "grub2bls") {
2062 $command = $grub_bls_get;
2063 $target = '^title=.*' . $grub_menu_qt;
2064 $skip = '^title=';
2065 } else {
2066 return;
2067 }
2068
2069 _get_grub_index($command, $target, $skip, $submenu);
2070}
2071
2072sub wait_for_input {
2073 my ($fp, $time) = @_;
2074 my $start_time;
2075 my $rin;
2076 my $rout;
2077 my $nr;
2078 my $buf;
2079 my $line;
2080 my $ch;
2081
2082 if (!defined($time)) {
2083 $time = $timeout;
2084 }
2085
2086 if ($time < 0) {
2087 # Negative number means wait indefinitely
2088 undef $time;
2089 }
2090
2091 $rin = '';
2092 vec($rin, fileno($fp), 1) = 1;
2093 vec($rin, fileno(\*STDIN), 1) = 1;
2094
2095 $start_time = time;
2096
2097 while (1) {
2098 $nr = select($rout=$rin, undef, undef, $time);
2099
2100 last if ($nr <= 0);
2101
2102 # copy data from stdin to the console
2103 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2104 $nr = sysread(\*STDIN, $buf, 1000);
2105 syswrite($fp, $buf, $nr) if ($nr > 0);
2106 }
2107
2108 # The timeout is based on time waiting for the fp data
2109 if (vec($rout, fileno($fp), 1) != 1) {
2110 last if (defined($time) && (time - $start_time > $time));
2111 next;
2112 }
2113
2114 $line = "";
2115
2116 # try to read one char at a time
2117 while (sysread $fp, $ch, 1) {
2118 $line .= $ch;
2119 last if ($ch eq "\n");
2120 }
2121
2122 last if (!length($line));
2123
2124 return $line;
2125 }
2126 return undef;
2127}
2128
2129sub reboot_to {
2130 if (defined($switch_to_test)) {
2131 run_command $switch_to_test;
2132 }
2133
2134 if ($reboot_type eq "grub") {
2135 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2136 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2137 run_ssh "$grub_reboot \"'$grub_number'\"";
2138 } elsif ($reboot_type eq "syslinux") {
2139 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2140 } elsif (defined $reboot_script) {
2141 run_command "$reboot_script";
2142 }
2143 reboot;
2144}
2145
2146sub get_sha1 {
2147 my ($commit) = @_;
2148
2149 doprint "git rev-list --max-count=1 $commit ... ";
2150 my $sha1 = `git rev-list --max-count=1 $commit`;
2151 my $ret = $?;
2152
2153 logit $sha1;
2154
2155 if ($ret) {
2156 doprint "FAILED\n";
2157 dodie "Failed to get git $commit";
2158 }
2159
2160 print "SUCCESS\n";
2161
2162 chomp $sha1;
2163
2164 return $sha1;
2165}
2166
2167sub monitor {
2168 my $booted = 0;
2169 my $bug = 0;
2170 my $bug_ignored = 0;
2171 my $skip_call_trace = 0;
2172 my $loops;
2173
2174 my $start_time = time;
2175
2176 wait_for_monitor 5;
2177
2178 my $line;
2179 my $full_line = "";
2180
2181 open(DMESG, "> $dmesg") or
2182 dodie "unable to write to $dmesg";
2183
2184 reboot_to;
2185
2186 my $success_start;
2187 my $failure_start;
2188 my $monitor_start = time;
2189 my $done = 0;
2190 my $version_found = 0;
2191
2192 while (!$done) {
2193 if ($bug && defined($stop_after_failure) &&
2194 $stop_after_failure >= 0) {
2195 my $time = $stop_after_failure - (time - $failure_start);
2196 $line = wait_for_input($monitor_fp, $time);
2197 if (!defined($line)) {
2198 doprint "bug timed out after $booted_timeout seconds\n";
2199 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2200 last;
2201 }
2202 } elsif ($booted) {
2203 $line = wait_for_input($monitor_fp, $booted_timeout);
2204 if (!defined($line)) {
2205 my $s = $booted_timeout == 1 ? "" : "s";
2206 doprint "Successful boot found: break after $booted_timeout second$s\n";
2207 last;
2208 }
2209 } else {
2210 $line = wait_for_input($monitor_fp);
2211 if (!defined($line)) {
2212 my $s = $timeout == 1 ? "" : "s";
2213 doprint "Timed out after $timeout second$s\n";
2214 last;
2215 }
2216 }
2217
2218 doprint $line;
2219 print DMESG $line;
2220
2221 # we are not guaranteed to get a full line
2222 $full_line .= $line;
2223
2224 if ($full_line =~ /$success_line/) {
2225 $booted = 1;
2226 $success_start = time;
2227 }
2228
2229 if ($booted && defined($stop_after_success) &&
2230 $stop_after_success >= 0) {
2231 my $now = time;
2232 if ($now - $success_start >= $stop_after_success) {
2233 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2234 last;
2235 }
2236 }
2237
2238 if ($full_line =~ /\[ backtrace testing \]/) {
2239 $skip_call_trace = 1;
2240 }
2241
2242 if ($full_line =~ /call trace:/i) {
2243 if (!$bug && !$skip_call_trace) {
2244 if ($ignore_errors) {
2245 $bug_ignored = 1;
2246 } else {
2247 $bug = 1;
2248 $failure_start = time;
2249 }
2250 }
2251 }
2252
2253 if ($bug && defined($stop_after_failure) &&
2254 $stop_after_failure >= 0) {
2255 my $now = time;
2256 if ($now - $failure_start >= $stop_after_failure) {
2257 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2258 last;
2259 }
2260 }
2261
2262 if ($full_line =~ /\[ end of backtrace testing \]/) {
2263 $skip_call_trace = 0;
2264 }
2265
2266 if ($full_line =~ /Kernel panic -/) {
2267 $failure_start = time;
2268 $bug = 1;
2269 }
2270
2271 # Detect triple faults by testing the banner
2272 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2273 if ($1 eq $version) {
2274 $version_found = 1;
2275 } elsif ($version_found && $detect_triplefault) {
2276 # We already booted into the kernel we are testing,
2277 # but now we booted into another kernel?
2278 # Consider this a triple fault.
2279 doprint "Already booted in Linux kernel $version, but now\n";
2280 doprint "we booted into Linux kernel $1.\n";
2281 doprint "Assuming that this is a triple fault.\n";
2282 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2283 last;
2284 }
2285 }
2286
2287 if ($line =~ /\n/) {
2288 $full_line = "";
2289 }
2290
2291 if ($stop_test_after > 0 && !$booted && !$bug) {
2292 if (time - $monitor_start > $stop_test_after) {
2293 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2294 $done = 1;
2295 }
2296 }
2297 }
2298
2299 my $end_time = time;
2300 $reboot_time = $end_time - $start_time;
2301
2302 close(DMESG);
2303
2304 if ($bug) {
2305 return 0 if ($in_bisect);
2306 fail "failed - got a bug report" and return 0;
2307 }
2308
2309 if (!$booted) {
2310 return 0 if ($in_bisect);
2311 fail "failed - never got a boot prompt." and return 0;
2312 }
2313
2314 if ($bug_ignored) {
2315 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2316 }
2317
2318 return 1;
2319}
2320
2321sub eval_kernel_version {
2322 my ($option) = @_;
2323
2324 $option =~ s/\$KERNEL_VERSION/$version/g;
2325
2326 return $option;
2327}
2328
2329sub do_post_install {
2330
2331 return if (!defined($post_install));
2332
2333 my $cp_post_install = eval_kernel_version $post_install;
2334 run_command "$cp_post_install" or
2335 dodie "Failed to run post install";
2336}
2337
2338# Sometimes the reboot fails, and will hang. We try to ssh to the box
2339# and if we fail, we force another reboot, that should powercycle it.
2340sub test_booted {
2341 if (!run_ssh "echo testing connection") {
2342 reboot $sleep_time;
2343 }
2344}
2345
2346sub install {
2347
2348 return if ($no_install);
2349
2350 my $start_time = time;
2351
2352 if (defined($pre_install)) {
2353 my $cp_pre_install = eval_kernel_version $pre_install;
2354 run_command "$cp_pre_install" or
2355 dodie "Failed to run pre install";
2356 }
2357
2358 my $cp_target = eval_kernel_version $target_image;
2359
2360 test_booted;
2361
2362 run_scp_install "$outputdir/$build_target", "$cp_target" or
2363 dodie "failed to copy image";
2364
2365 my $install_mods = 0;
2366
2367 # should we process modules?
2368 $install_mods = 0;
2369 open(IN, "$output_config") or dodie("Can't read config file");
2370 while (<IN>) {
2371 if (/CONFIG_MODULES(=y)?/) {
2372 if (defined($1)) {
2373 $install_mods = 1;
2374 last;
2375 }
2376 }
2377 }
2378 close(IN);
2379
2380 if (!$install_mods) {
2381 do_post_install;
2382 doprint "No modules needed\n";
2383 my $end_time = time;
2384 $install_time = $end_time - $start_time;
2385 return;
2386 }
2387
2388 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2389 dodie "Failed to install modules";
2390
2391 my $modlib = "/lib/modules/$version";
2392 my $modtar = "ktest-mods.tar.bz2";
2393
2394 run_ssh "rm -rf $modlib" or
2395 dodie "failed to remove old mods: $modlib";
2396
2397 # would be nice if scp -r did not follow symbolic links
2398 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2399 dodie "making tarball";
2400
2401 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2402 dodie "failed to copy modules";
2403
2404 unlink "$tmpdir/$modtar";
2405
2406 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2407 dodie "failed to tar modules";
2408
2409 run_ssh "rm -f /tmp/$modtar";
2410
2411 do_post_install;
2412
2413 my $end_time = time;
2414 $install_time = $end_time - $start_time;
2415}
2416
2417sub get_version {
2418 # get the release name
2419 return if ($have_version);
2420 doprint "$make kernelrelease ... ";
2421 $version = `$make -s kernelrelease | tail -1`;
2422 if (!length($version)) {
2423 run_command "$make allnoconfig" or return 0;
2424 doprint "$make kernelrelease ... ";
2425 $version = `$make -s kernelrelease | tail -1`;
2426 }
2427 chomp($version);
2428 doprint "$version\n";
2429 $have_version = 1;
2430}
2431
2432sub start_monitor_and_install {
2433 # Make sure the stable kernel has finished booting
2434
2435 # Install bisects, don't need console
2436 if (defined $console) {
2437 start_monitor;
2438 wait_for_monitor 5;
2439 end_monitor;
2440 }
2441
2442 get_grub_index;
2443 get_version;
2444 install;
2445
2446 start_monitor if (defined $console);
2447 return monitor;
2448}
2449
2450sub process_warning_line {
2451 my ($line) = @_;
2452
2453 chomp $line;
2454
2455 # for distcc heterogeneous systems, some compilers
2456 # do things differently causing warning lines
2457 # to be slightly different. This makes an attempt
2458 # to fixe those issues.
2459
2460 # chop off the index into the line
2461 # using distcc, some compilers give different indexes
2462 # depending on white space
2463 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2464
2465 # Some compilers use UTF-8 extended for quotes and some don't.
2466 $line =~ s/$utf8_quote/'/g;
2467
2468 return $line;
2469}
2470
2471# Read buildlog and check against warnings file for any
2472# new warnings.
2473#
2474# Returns 1 if OK
2475# 0 otherwise
2476sub check_buildlog {
2477 my %warnings_list;
2478
2479 # Failed builds should not reboot the target
2480 my $save_no_reboot = $no_reboot;
2481 $no_reboot = 1;
2482
2483 if (-f $warnings_file) {
2484 open(IN, $warnings_file) or
2485 dodie "Error opening $warnings_file";
2486
2487 while (<IN>) {
2488 if (/$check_build_re/) {
2489 my $warning = process_warning_line $_;
2490
2491 $warnings_list{$warning} = 1;
2492 }
2493 }
2494 close(IN);
2495 }
2496
2497 open(IN, $buildlog) or dodie "Can't open $buildlog";
2498 while (<IN>) {
2499 if (/$check_build_re/) {
2500 my $warning = process_warning_line $_;
2501
2502 if (!defined $warnings_list{$warning}) {
2503 $warning_found++;
2504
2505 # If warnings file didn't exist, and WARNINGS_FILE exist,
2506 # then we fail on any warning!
2507 if (defined $warnings_file) {
2508 fail "New warning found (not in $warnings_file)\n$_\n";
2509 $no_reboot = $save_no_reboot;
2510 return 0;
2511 }
2512 }
2513 }
2514 }
2515 $no_reboot = $save_no_reboot;
2516 close(IN);
2517}
2518
2519sub check_patch_buildlog {
2520 my ($patch) = @_;
2521
2522 my @files = `git show $patch | diffstat -l`;
2523
2524 foreach my $file (@files) {
2525 chomp $file;
2526 }
2527
2528 open(IN, "git show $patch |") or
2529 dodie "failed to show $patch";
2530 while (<IN>) {
2531 if (m,^--- a/(.*),) {
2532 chomp $1;
2533 $files[$#files] = $1;
2534 }
2535 }
2536 close(IN);
2537
2538 open(IN, $buildlog) or dodie "Can't open $buildlog";
2539 while (<IN>) {
2540 if (/^\s*(.*?):.*(warning|error)/) {
2541 my $err = $1;
2542 foreach my $file (@files) {
2543 my $fullpath = "$builddir/$file";
2544 if ($file eq $err || $fullpath eq $err) {
2545 fail "$file built with warnings" and return 0;
2546 }
2547 }
2548 }
2549 }
2550 close(IN);
2551
2552 return 1;
2553}
2554
2555sub apply_min_config {
2556 my $outconfig = "$output_config.new";
2557
2558 # Read the config file and remove anything that
2559 # is in the force_config hash (from minconfig and others)
2560 # then add the force config back.
2561
2562 doprint "Applying minimum configurations into $output_config.new\n";
2563
2564 open (OUT, ">$outconfig") or
2565 dodie "Can't create $outconfig";
2566
2567 if (-f $output_config) {
2568 open (IN, $output_config) or
2569 dodie "Failed to open $output_config";
2570 while (<IN>) {
2571 if (/^(# )?(CONFIG_[^\s=]*)/) {
2572 next if (defined($force_config{$2}));
2573 }
2574 print OUT;
2575 }
2576 close IN;
2577 }
2578 foreach my $config (keys %force_config) {
2579 print OUT "$force_config{$config}\n";
2580 }
2581 close OUT;
2582
2583 run_command "mv $outconfig $output_config";
2584}
2585
2586sub make_oldconfig {
2587
2588 my @force_list = keys %force_config;
2589
2590 if ($#force_list >= 0) {
2591 apply_min_config;
2592 }
2593
2594 if (!run_command "$make olddefconfig") {
2595 # Perhaps olddefconfig doesn't exist in this version of the kernel
2596 # try oldnoconfig
2597 doprint "olddefconfig failed, trying make oldnoconfig\n";
2598 if (!run_command "$make oldnoconfig") {
2599 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2600 # try a yes '' | oldconfig
2601 run_command "yes '' | $make oldconfig" or
2602 dodie "failed make config oldconfig";
2603 }
2604 }
2605}
2606
2607# read a config file and use this to force new configs.
2608sub load_force_config {
2609 my ($config) = @_;
2610
2611 doprint "Loading force configs from $config\n";
2612 open(IN, $config) or
2613 dodie "failed to read $config";
2614 while (<IN>) {
2615 chomp;
2616 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2617 $force_config{$1} = $_;
2618 } elsif (/^# (CONFIG_\S*) is not set/) {
2619 $force_config{$1} = $_;
2620 }
2621 }
2622 close IN;
2623}
2624
2625sub build {
2626 my ($type) = @_;
2627
2628 unlink $buildlog;
2629
2630 my $start_time = time;
2631
2632 # Failed builds should not reboot the target
2633 my $save_no_reboot = $no_reboot;
2634 $no_reboot = 1;
2635
2636 # Calculate a new version from here.
2637 $have_version = 0;
2638
2639 if (defined($pre_build)) {
2640 my $ret = run_command $pre_build;
2641 if (!$ret && defined($pre_build_die) &&
2642 $pre_build_die) {
2643 dodie "failed to pre_build\n";
2644 }
2645 }
2646
2647 if ($type =~ /^useconfig:(.*)/) {
2648 run_command "cp $1 $output_config" or
2649 dodie "could not copy $1 to .config";
2650
2651 $type = "oldconfig";
2652 }
2653
2654 # old config can ask questions
2655 if ($type eq "oldconfig") {
2656 $type = "olddefconfig";
2657
2658 # allow for empty configs
2659 run_command "touch $output_config";
2660
2661 if (!$noclean) {
2662 run_command "mv $output_config $outputdir/config_temp" or
2663 dodie "moving .config";
2664
2665 run_command "$make mrproper" or dodie "make mrproper";
2666
2667 run_command "mv $outputdir/config_temp $output_config" or
2668 dodie "moving config_temp";
2669 }
2670 } elsif (!$noclean) {
2671 unlink "$output_config";
2672 run_command "$make mrproper" or
2673 dodie "make mrproper";
2674 }
2675
2676 # add something to distinguish this build
2677 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2678 print OUT "$localversion\n";
2679 close(OUT);
2680
2681 if (defined($minconfig)) {
2682 load_force_config($minconfig);
2683 }
2684
2685 if ($type ne "olddefconfig") {
2686 run_command "$make $type" or
2687 dodie "failed make config";
2688 }
2689 # Run old config regardless, to enforce min configurations
2690 make_oldconfig;
2691
2692 if (not defined($build_options)){
2693 $build_options = "";
2694 }
2695 my $build_ret = run_command "$make $build_options", $buildlog;
2696
2697 if (defined($post_build)) {
2698 # Because a post build may change the kernel version
2699 # do it now.
2700 get_version;
2701 my $ret = run_command $post_build;
2702 if (!$ret && defined($post_build_die) &&
2703 $post_build_die) {
2704 dodie "failed to post_build\n";
2705 }
2706 }
2707
2708 if (!$build_ret) {
2709 # bisect may need this to pass
2710 if ($in_bisect) {
2711 $no_reboot = $save_no_reboot;
2712 return 0;
2713 }
2714 fail "failed build" and return 0;
2715 }
2716
2717 $no_reboot = $save_no_reboot;
2718
2719 my $end_time = time;
2720 $build_time = $end_time - $start_time;
2721
2722 return 1;
2723}
2724
2725sub halt {
2726 if (!run_ssh "halt" or defined($power_off)) {
2727 if (defined($poweroff_after_halt)) {
2728 sleep $poweroff_after_halt;
2729 run_command "$power_off";
2730 }
2731 } else {
2732 # nope? the zap it!
2733 run_command "$power_off";
2734 }
2735}
2736
2737sub success {
2738 my ($i) = @_;
2739
2740 $successes++;
2741
2742 my $name = "";
2743
2744 if (defined($test_name)) {
2745 $name = " ($test_name)";
2746 }
2747
2748 print_times;
2749
2750 doprint "\n\n";
2751 doprint "*******************************************\n";
2752 doprint "*******************************************\n";
2753 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2754 doprint "*******************************************\n";
2755 doprint "*******************************************\n";
2756
2757 if (defined($store_successes)) {
2758 save_logs "success", $store_successes;
2759 }
2760
2761 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2762 doprint "Reboot and wait $sleep_time seconds\n";
2763 reboot_to_good $sleep_time;
2764 }
2765
2766 if (defined($post_test)) {
2767 run_command $post_test;
2768 }
2769}
2770
2771sub answer_bisect {
2772 for (;;) {
2773 doprint "Pass, fail, or skip? [p/f/s]";
2774 my $ans = <STDIN>;
2775 chomp $ans;
2776 if ($ans eq "p" || $ans eq "P") {
2777 return 1;
2778 } elsif ($ans eq "f" || $ans eq "F") {
2779 return 0;
2780 } elsif ($ans eq "s" || $ans eq "S") {
2781 return -1;
2782 } else {
2783 print "Please answer 'p', 'f', or 's'\n";
2784 }
2785 }
2786}
2787
2788sub child_run_test {
2789
2790 # child should have no power
2791 $reboot_on_error = 0;
2792 $poweroff_on_error = 0;
2793 $die_on_failure = 1;
2794
2795 run_command $run_test, $testlog;
2796
2797 exit $run_command_status;
2798}
2799
2800sub child_finished {
2801 $child_done = 1;
2802}
2803
2804sub do_run_test {
2805 my $child_pid;
2806 my $child_exit;
2807 my $line;
2808 my $full_line;
2809 my $bug = 0;
2810 my $bug_ignored = 0;
2811
2812 my $start_time = time;
2813
2814 wait_for_monitor 1;
2815
2816 doprint "run test $run_test\n";
2817
2818 $child_done = 0;
2819
2820 $SIG{CHLD} = qw(child_finished);
2821
2822 $child_pid = fork;
2823
2824 child_run_test if (!$child_pid);
2825
2826 $full_line = "";
2827
2828 do {
2829 $line = wait_for_input($monitor_fp, 1);
2830 if (defined($line)) {
2831
2832 # we are not guaranteed to get a full line
2833 $full_line .= $line;
2834 doprint $line;
2835
2836 if ($full_line =~ /call trace:/i) {
2837 if ($ignore_errors) {
2838 $bug_ignored = 1;
2839 } else {
2840 $bug = 1;
2841 }
2842 }
2843
2844 if ($full_line =~ /Kernel panic -/) {
2845 $bug = 1;
2846 }
2847
2848 if ($line =~ /\n/) {
2849 $full_line = "";
2850 }
2851 }
2852 } while (!$child_done && !$bug);
2853
2854 if (!$bug && $bug_ignored) {
2855 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2856 }
2857
2858 if ($bug) {
2859 my $failure_start = time;
2860 my $now;
2861 do {
2862 $line = wait_for_input($monitor_fp, 1);
2863 if (defined($line)) {
2864 doprint $line;
2865 }
2866 $now = time;
2867 if ($now - $failure_start >= $stop_after_failure) {
2868 last;
2869 }
2870 } while (defined($line));
2871
2872 doprint "Detected kernel crash!\n";
2873 # kill the child with extreme prejudice
2874 kill 9, $child_pid;
2875 }
2876
2877 waitpid $child_pid, 0;
2878 $child_exit = $? >> 8;
2879
2880 my $end_time = time;
2881 $test_time = $end_time - $start_time;
2882
2883 if (!$bug && $in_bisect) {
2884 if (defined($bisect_ret_good)) {
2885 if ($child_exit == $bisect_ret_good) {
2886 return 1;
2887 }
2888 }
2889 if (defined($bisect_ret_skip)) {
2890 if ($child_exit == $bisect_ret_skip) {
2891 return -1;
2892 }
2893 }
2894 if (defined($bisect_ret_abort)) {
2895 if ($child_exit == $bisect_ret_abort) {
2896 fail "test abort" and return -2;
2897 }
2898 }
2899 if (defined($bisect_ret_bad)) {
2900 if ($child_exit == $bisect_ret_skip) {
2901 return 0;
2902 }
2903 }
2904 if (defined($bisect_ret_default)) {
2905 if ($bisect_ret_default eq "good") {
2906 return 1;
2907 } elsif ($bisect_ret_default eq "bad") {
2908 return 0;
2909 } elsif ($bisect_ret_default eq "skip") {
2910 return -1;
2911 } elsif ($bisect_ret_default eq "abort") {
2912 return -2;
2913 } else {
2914 fail "unknown default action: $bisect_ret_default"
2915 and return -2;
2916 }
2917 }
2918 }
2919
2920 if ($bug || $child_exit) {
2921 return 0 if $in_bisect;
2922 fail "test failed" and return 0;
2923 }
2924 return 1;
2925}
2926
2927sub run_git_bisect {
2928 my ($command) = @_;
2929
2930 doprint "$command ... ";
2931
2932 my $output = `$command 2>&1`;
2933 my $ret = $?;
2934
2935 logit $output;
2936
2937 if ($ret) {
2938 doprint "FAILED\n";
2939 dodie "Failed to git bisect";
2940 }
2941
2942 doprint "SUCCESS\n";
2943 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2944 doprint "$1 [$2]\n";
2945 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2946 $bisect_bad_commit = $1;
2947 doprint "Found bad commit... $1\n";
2948 return 0;
2949 } else {
2950 # we already logged it, just print it now.
2951 print $output;
2952 }
2953
2954 return 1;
2955}
2956
2957sub bisect_reboot {
2958 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2959 reboot_to_good $bisect_sleep_time;
2960}
2961
2962# returns 1 on success, 0 on failure, -1 on skip
2963sub run_bisect_test {
2964 my ($type, $buildtype) = @_;
2965
2966 my $failed = 0;
2967 my $result;
2968
2969 $in_bisect = 1;
2970
2971 build $buildtype or $failed = 1;
2972
2973 if ($type ne "build") {
2974 if ($failed && $bisect_skip) {
2975 $in_bisect = 0;
2976 return -1;
2977 }
2978 dodie "Failed on build" if $failed;
2979
2980 # Now boot the box
2981 start_monitor_and_install or $failed = 1;
2982
2983 if ($type ne "boot") {
2984 if ($failed && $bisect_skip) {
2985 end_monitor;
2986 bisect_reboot;
2987 $in_bisect = 0;
2988 return -1;
2989 }
2990 dodie "Failed on boot" if $failed;
2991
2992 do_run_test or $failed = 1;
2993 }
2994 end_monitor;
2995 }
2996
2997 if ($failed) {
2998 $result = 0;
2999 } else {
3000 $result = 1;
3001 }
3002
3003 # reboot the box to a kernel we can ssh to
3004 if ($type ne "build") {
3005 bisect_reboot;
3006 }
3007 $in_bisect = 0;
3008
3009 return $result;
3010}
3011
3012sub run_bisect {
3013 my ($type) = @_;
3014 my $buildtype = "oldconfig";
3015
3016 # We should have a minconfig to use?
3017 if (defined($minconfig)) {
3018 $buildtype = "useconfig:$minconfig";
3019 }
3020
3021 # If the user sets bisect_tries to less than 1, then no tries
3022 # is a success.
3023 my $ret = 1;
3024
3025 # Still let the user manually decide that though.
3026 if ($bisect_tries < 1 && $bisect_manual) {
3027 $ret = answer_bisect;
3028 }
3029
3030 for (my $i = 0; $i < $bisect_tries; $i++) {
3031 if ($bisect_tries > 1) {
3032 my $t = $i + 1;
3033 doprint("Running bisect trial $t of $bisect_tries:\n");
3034 }
3035 $ret = run_bisect_test $type, $buildtype;
3036
3037 if ($bisect_manual) {
3038 $ret = answer_bisect;
3039 }
3040
3041 last if (!$ret);
3042 }
3043
3044 # Are we looking for where it worked, not failed?
3045 if ($reverse_bisect && $ret >= 0) {
3046 $ret = !$ret;
3047 }
3048
3049 if ($ret > 0) {
3050 return "good";
3051 } elsif ($ret == 0) {
3052 return "bad";
3053 } elsif ($bisect_skip) {
3054 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3055 return "skip";
3056 }
3057}
3058
3059sub update_bisect_replay {
3060 my $tmp_log = "$tmpdir/ktest_bisect_log";
3061 run_command "git bisect log > $tmp_log" or
3062 dodie "can't create bisect log";
3063 return $tmp_log;
3064}
3065
3066sub bisect {
3067 my ($i) = @_;
3068
3069 my $result;
3070
3071 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3072 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3073 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3074
3075 my $good = $bisect_good;
3076 my $bad = $bisect_bad;
3077 my $type = $bisect_type;
3078 my $start = $bisect_start;
3079 my $replay = $bisect_replay;
3080 my $start_files = $bisect_files;
3081
3082 if (defined($start_files)) {
3083 $start_files = " -- " . $start_files;
3084 } else {
3085 $start_files = "";
3086 }
3087
3088 # convert to true sha1's
3089 $good = get_sha1($good);
3090 $bad = get_sha1($bad);
3091
3092 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3093 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3094 $reverse_bisect = 1;
3095 } else {
3096 $reverse_bisect = 0;
3097 }
3098
3099 # Can't have a test without having a test to run
3100 if ($type eq "test" && !defined($run_test)) {
3101 $type = "boot";
3102 }
3103
3104 # Check if a bisect was running
3105 my $bisect_start_file = "$builddir/.git/BISECT_START";
3106
3107 my $check = $bisect_check;
3108 my $do_check = defined($check) && $check ne "0";
3109
3110 if ( -f $bisect_start_file ) {
3111 print "Bisect in progress found\n";
3112 if ($do_check) {
3113 print " If you say yes, then no checks of good or bad will be done\n";
3114 }
3115 if (defined($replay)) {
3116 print "** BISECT_REPLAY is defined in config file **";
3117 print " Ignore config option and perform new git bisect log?\n";
3118 if (read_ync " (yes, no, or cancel) ") {
3119 $replay = update_bisect_replay;
3120 $do_check = 0;
3121 }
3122 } elsif (read_yn "read git log and continue?") {
3123 $replay = update_bisect_replay;
3124 $do_check = 0;
3125 }
3126 }
3127
3128 if ($do_check) {
3129 # get current HEAD
3130 my $head = get_sha1("HEAD");
3131
3132 if ($check ne "good") {
3133 doprint "TESTING BISECT BAD [$bad]\n";
3134 run_command "git checkout $bad" or
3135 dodie "Failed to checkout $bad";
3136
3137 $result = run_bisect $type;
3138
3139 if ($result ne "bad") {
3140 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3141 }
3142 }
3143
3144 if ($check ne "bad") {
3145 doprint "TESTING BISECT GOOD [$good]\n";
3146 run_command "git checkout $good" or
3147 dodie "Failed to checkout $good";
3148
3149 $result = run_bisect $type;
3150
3151 if ($result ne "good") {
3152 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3153 }
3154 }
3155
3156 # checkout where we started
3157 run_command "git checkout $head" or
3158 dodie "Failed to checkout $head";
3159 }
3160
3161 run_command "git bisect start$start_files" or
3162 dodie "could not start bisect";
3163
3164 if (defined($replay)) {
3165 run_command "git bisect replay $replay" or
3166 dodie "failed to run replay";
3167 } else {
3168 run_command "git bisect good $good" or
3169 dodie "could not set bisect good to $good";
3170
3171 run_git_bisect "git bisect bad $bad" or
3172 dodie "could not set bisect bad to $bad";
3173 }
3174
3175 if (defined($start)) {
3176 run_command "git checkout $start" or
3177 dodie "failed to checkout $start";
3178 }
3179
3180 my $test;
3181 do {
3182 $result = run_bisect $type;
3183 $test = run_git_bisect "git bisect $result";
3184 print_times;
3185 } while ($test);
3186
3187 run_command "git bisect log" or
3188 dodie "could not capture git bisect log";
3189
3190 run_command "git bisect reset" or
3191 dodie "could not reset git bisect";
3192
3193 doprint "Bad commit was [$bisect_bad_commit]\n";
3194
3195 success $i;
3196}
3197
3198sub assign_configs {
3199 my ($hash, $config) = @_;
3200
3201 doprint "Reading configs from $config\n";
3202
3203 open (IN, $config) or
3204 dodie "Failed to read $config";
3205
3206 while (<IN>) {
3207 chomp;
3208 if (/^((CONFIG\S*)=.*)/) {
3209 ${$hash}{$2} = $1;
3210 } elsif (/^(# (CONFIG\S*) is not set)/) {
3211 ${$hash}{$2} = $1;
3212 }
3213 }
3214
3215 close(IN);
3216}
3217
3218sub process_config_ignore {
3219 my ($config) = @_;
3220
3221 assign_configs \%config_ignore, $config;
3222}
3223
3224sub get_dependencies {
3225 my ($config) = @_;
3226
3227 my $arr = $dependency{$config};
3228 if (!defined($arr)) {
3229 return ();
3230 }
3231
3232 my @deps = @{$arr};
3233
3234 foreach my $dep (@{$arr}) {
3235 print "ADD DEP $dep\n";
3236 @deps = (@deps, get_dependencies $dep);
3237 }
3238
3239 return @deps;
3240}
3241
3242sub save_config {
3243 my ($pc, $file) = @_;
3244
3245 my %configs = %{$pc};
3246
3247 doprint "Saving configs into $file\n";
3248
3249 open(OUT, ">$file") or dodie "Can not write to $file";
3250
3251 foreach my $config (keys %configs) {
3252 print OUT "$configs{$config}\n";
3253 }
3254 close(OUT);
3255}
3256
3257sub create_config {
3258 my ($name, $pc) = @_;
3259
3260 doprint "Creating old config from $name configs\n";
3261
3262 save_config $pc, $output_config;
3263
3264 make_oldconfig;
3265}
3266
3267sub run_config_bisect_test {
3268 my ($type) = @_;
3269
3270 my $ret = run_bisect_test $type, "oldconfig";
3271
3272 if ($bisect_manual) {
3273 $ret = answer_bisect;
3274 }
3275
3276 return $ret;
3277}
3278
3279sub config_bisect_end {
3280 my ($good, $bad) = @_;
3281 my $diffexec = "diff -u";
3282
3283 if (-f "$builddir/scripts/diffconfig") {
3284 $diffexec = "$builddir/scripts/diffconfig";
3285 }
3286 doprint "\n\n***************************************\n";
3287 doprint "No more config bisecting possible.\n";
3288 run_command "$diffexec $good $bad", 1;
3289 doprint "***************************************\n\n";
3290}
3291
3292sub run_config_bisect {
3293 my ($good, $bad, $last_result) = @_;
3294 my $reset = "";
3295 my $cmd;
3296 my $ret;
3297
3298 if (!length($last_result)) {
3299 $reset = "-r";
3300 }
3301 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3302
3303 # config-bisect returns:
3304 # 0 if there is more to bisect
3305 # 1 for finding a good config
3306 # 2 if it can not find any more configs
3307 # -1 (255) on error
3308 if ($run_command_status) {
3309 return $run_command_status;
3310 }
3311
3312 $ret = run_config_bisect_test $config_bisect_type;
3313 if ($ret) {
3314 doprint "NEW GOOD CONFIG ($pass)\n";
3315 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3316 $pass++;
3317 # Return 3 for good config
3318 return 3;
3319 } else {
3320 doprint "NEW BAD CONFIG ($pass)\n";
3321 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3322 $pass++;
3323 # Return 4 for bad config
3324 return 4;
3325 }
3326}
3327
3328sub config_bisect {
3329 my ($i) = @_;
3330
3331 my $good_config;
3332 my $bad_config;
3333
3334 my $type = $config_bisect_type;
3335 my $ret;
3336
3337 $bad_config = $config_bisect;
3338
3339 if (defined($config_bisect_good)) {
3340 $good_config = $config_bisect_good;
3341 } elsif (defined($minconfig)) {
3342 $good_config = $minconfig;
3343 } else {
3344 doprint "No config specified, checking if defconfig works";
3345 $ret = run_bisect_test $type, "defconfig";
3346 if (!$ret) {
3347 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3348 return 1;
3349 }
3350 $good_config = $output_config;
3351 }
3352
3353 if (!defined($config_bisect_exec)) {
3354 # First check the location that ktest.pl ran
3355 my @locations = (
3356 "$pwd/config-bisect.pl",
3357 "$dirname/config-bisect.pl",
3358 "$builddir/tools/testing/ktest/config-bisect.pl",
3359 undef );
3360 foreach my $loc (@locations) {
3361 doprint "loc = $loc\n";
3362 $config_bisect_exec = $loc;
3363 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3364 }
3365 if (!defined($config_bisect_exec)) {
3366 fail "Could not find an executable config-bisect.pl\n",
3367 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3368 return 1;
3369 }
3370 }
3371
3372 # we don't want min configs to cause issues here.
3373 doprint "Disabling 'MIN_CONFIG' for this test\n";
3374 undef $minconfig;
3375
3376 my %good_configs;
3377 my %bad_configs;
3378 my %tmp_configs;
3379
3380 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3381 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3382 if (-f "$tmpdir/good_config.tmp") {
3383 $good_config = "$tmpdir/good_config.tmp";
3384 } else {
3385 $good_config = "$tmpdir/good_config";
3386 }
3387 if (-f "$tmpdir/bad_config.tmp") {
3388 $bad_config = "$tmpdir/bad_config.tmp";
3389 } else {
3390 $bad_config = "$tmpdir/bad_config";
3391 }
3392 }
3393 }
3394 doprint "Run good configs through make oldconfig\n";
3395 assign_configs \%tmp_configs, $good_config;
3396 create_config "$good_config", \%tmp_configs;
3397 $good_config = "$tmpdir/good_config";
3398 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3399
3400 doprint "Run bad configs through make oldconfig\n";
3401 assign_configs \%tmp_configs, $bad_config;
3402 create_config "$bad_config", \%tmp_configs;
3403 $bad_config = "$tmpdir/bad_config";
3404 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3405
3406 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3407 if ($config_bisect_check ne "good") {
3408 doprint "Testing bad config\n";
3409
3410 $ret = run_bisect_test $type, "useconfig:$bad_config";
3411 if ($ret) {
3412 fail "Bad config succeeded when expected to fail!";
3413 return 0;
3414 }
3415 }
3416 if ($config_bisect_check ne "bad") {
3417 doprint "Testing good config\n";
3418
3419 $ret = run_bisect_test $type, "useconfig:$good_config";
3420 if (!$ret) {
3421 fail "Good config failed when expected to succeed!";
3422 return 0;
3423 }
3424 }
3425 }
3426
3427 my $last_run = "";
3428
3429 do {
3430 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3431 if ($ret == 3) {
3432 $last_run = "good";
3433 } elsif ($ret == 4) {
3434 $last_run = "bad";
3435 }
3436 print_times;
3437 } while ($ret == 3 || $ret == 4);
3438
3439 if ($ret == 2) {
3440 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3441 }
3442
3443 return $ret if ($ret < 0);
3444
3445 success $i;
3446}
3447
3448sub patchcheck_reboot {
3449 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3450 reboot_to_good $patchcheck_sleep_time;
3451}
3452
3453sub patchcheck {
3454 my ($i) = @_;
3455
3456 dodie "PATCHCHECK_START[$i] not defined\n"
3457 if (!defined($patchcheck_start));
3458 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3459 if (!defined($patchcheck_type));
3460
3461 my $start = $patchcheck_start;
3462
3463 my $cherry = $patchcheck_cherry;
3464 if (!defined($cherry)) {
3465 $cherry = 0;
3466 }
3467
3468 my $end = "HEAD";
3469 if (defined($patchcheck_end)) {
3470 $end = $patchcheck_end;
3471 } elsif ($cherry) {
3472 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3473 }
3474
3475 # Get the true sha1's since we can use things like HEAD~3
3476 $start = get_sha1($start);
3477 $end = get_sha1($end);
3478
3479 my $type = $patchcheck_type;
3480
3481 # Can't have a test without having a test to run
3482 if ($type eq "test" && !defined($run_test)) {
3483 $type = "boot";
3484 }
3485
3486 if ($cherry) {
3487 open (IN, "git cherry -v $start $end|") or
3488 dodie "could not get git list";
3489 } else {
3490 open (IN, "git log --pretty=oneline $end|") or
3491 dodie "could not get git list";
3492 }
3493
3494 my @list;
3495
3496 while (<IN>) {
3497 chomp;
3498 # git cherry adds a '+' we want to remove
3499 s/^\+ //;
3500 $list[$#list+1] = $_;
3501 last if (/^$start/);
3502 }
3503 close(IN);
3504
3505 if (!$cherry) {
3506 if ($list[$#list] !~ /^$start/) {
3507 fail "SHA1 $start not found";
3508 }
3509
3510 # go backwards in the list
3511 @list = reverse @list;
3512 }
3513
3514 doprint("Going to test the following commits:\n");
3515 foreach my $l (@list) {
3516 doprint "$l\n";
3517 }
3518
3519 my $save_clean = $noclean;
3520 my %ignored_warnings;
3521
3522 if (defined($ignore_warnings)) {
3523 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3524 $ignored_warnings{$sha1} = 1;
3525 }
3526 }
3527
3528 $in_patchcheck = 1;
3529 foreach my $item (@list) {
3530 my $sha1 = $item;
3531 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3532
3533 doprint "\nProcessing commit \"$item\"\n\n";
3534
3535 run_command "git checkout $sha1" or
3536 dodie "Failed to checkout $sha1";
3537
3538 # only clean on the first and last patch
3539 if ($item eq $list[0] ||
3540 $item eq $list[$#list]) {
3541 $noclean = $save_clean;
3542 } else {
3543 $noclean = 1;
3544 }
3545
3546 if (defined($minconfig)) {
3547 build "useconfig:$minconfig" or return 0;
3548 } else {
3549 # ?? no config to use?
3550 build "oldconfig" or return 0;
3551 }
3552
3553 # No need to do per patch checking if warnings file exists
3554 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3555 check_patch_buildlog $sha1 or return 0;
3556 }
3557
3558 check_buildlog or return 0;
3559
3560 next if ($type eq "build");
3561
3562 my $failed = 0;
3563
3564 start_monitor_and_install or $failed = 1;
3565
3566 if (!$failed && $type ne "boot"){
3567 do_run_test or $failed = 1;
3568 }
3569 end_monitor;
3570 if ($failed) {
3571 print_times;
3572 return 0;
3573 }
3574 patchcheck_reboot;
3575 print_times;
3576 }
3577 $in_patchcheck = 0;
3578 success $i;
3579
3580 return 1;
3581}
3582
3583sub add_dep {
3584 # $config depends on $dep
3585 my ($config, $dep) = @_;
3586
3587 if (defined($depends{$config})) {
3588 $depends{$config} .= " " . $dep;
3589 } else {
3590 $depends{$config} = $dep;
3591 }
3592
3593 # record the number of configs depending on $dep
3594 if (defined $depcount{$dep}) {
3595 $depcount{$dep}++;
3596 } else {
3597 $depcount{$dep} = 1;
3598 }
3599}
3600
3601# taken from streamline_config.pl
3602sub read_kconfig {
3603 my ($kconfig) = @_;
3604
3605 my $state = "NONE";
3606 my $config;
3607 my @kconfigs;
3608
3609 my $cont = 0;
3610 my $line;
3611
3612 if (! -f $kconfig) {
3613 doprint "file $kconfig does not exist, skipping\n";
3614 return;
3615 }
3616
3617 open(KIN, "$kconfig")
3618 or dodie "Can't open $kconfig";
3619 while (<KIN>) {
3620 chomp;
3621
3622 # Make sure that lines ending with \ continue
3623 if ($cont) {
3624 $_ = $line . " " . $_;
3625 }
3626
3627 if (s/\\$//) {
3628 $cont = 1;
3629 $line = $_;
3630 next;
3631 }
3632
3633 $cont = 0;
3634
3635 # collect any Kconfig sources
3636 if (/^source\s*"(.*)"/) {
3637 $kconfigs[$#kconfigs+1] = $1;
3638 }
3639
3640 # configs found
3641 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3642 $state = "NEW";
3643 $config = $2;
3644
3645 for (my $i = 0; $i < $iflevel; $i++) {
3646 add_dep $config, $ifdeps[$i];
3647 }
3648
3649 # collect the depends for the config
3650 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3651
3652 add_dep $config, $1;
3653
3654 # Get the configs that select this config
3655 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3656
3657 # selected by depends on config
3658 add_dep $1, $config;
3659
3660 # Check for if statements
3661 } elsif (/^if\s+(.*\S)\s*$/) {
3662 my $deps = $1;
3663 # remove beginning and ending non text
3664 $deps =~ s/^[^a-zA-Z0-9_]*//;
3665 $deps =~ s/[^a-zA-Z0-9_]*$//;
3666
3667 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3668
3669 $ifdeps[$iflevel++] = join ':', @deps;
3670
3671 } elsif (/^endif/) {
3672
3673 $iflevel-- if ($iflevel);
3674
3675 # stop on "help"
3676 } elsif (/^\s*help\s*$/) {
3677 $state = "NONE";
3678 }
3679 }
3680 close(KIN);
3681
3682 # read in any configs that were found.
3683 foreach $kconfig (@kconfigs) {
3684 if (!defined($read_kconfigs{$kconfig})) {
3685 $read_kconfigs{$kconfig} = 1;
3686 read_kconfig("$builddir/$kconfig");
3687 }
3688 }
3689}
3690
3691sub read_depends {
3692 # find out which arch this is by the kconfig file
3693 open (IN, $output_config) or
3694 dodie "Failed to read $output_config";
3695 my $arch;
3696 while (<IN>) {
3697 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3698 $arch = $1;
3699 last;
3700 }
3701 }
3702 close IN;
3703
3704 if (!defined($arch)) {
3705 doprint "Could not find arch from config file\n";
3706 doprint "no dependencies used\n";
3707 return;
3708 }
3709
3710 # arch is really the subarch, we need to know
3711 # what directory to look at.
3712 if ($arch eq "i386" || $arch eq "x86_64") {
3713 $arch = "x86";
3714 }
3715
3716 my $kconfig = "$builddir/arch/$arch/Kconfig";
3717
3718 if (! -f $kconfig && $arch =~ /\d$/) {
3719 my $orig = $arch;
3720 # some subarchs have numbers, truncate them
3721 $arch =~ s/\d*$//;
3722 $kconfig = "$builddir/arch/$arch/Kconfig";
3723 if (! -f $kconfig) {
3724 doprint "No idea what arch dir $orig is for\n";
3725 doprint "no dependencies used\n";
3726 return;
3727 }
3728 }
3729
3730 read_kconfig($kconfig);
3731}
3732
3733sub make_new_config {
3734 my @configs = @_;
3735
3736 open (OUT, ">$output_config")
3737 or dodie "Failed to write $output_config";
3738
3739 foreach my $config (@configs) {
3740 print OUT "$config\n";
3741 }
3742 close OUT;
3743}
3744
3745sub chomp_config {
3746 my ($config) = @_;
3747
3748 $config =~ s/CONFIG_//;
3749
3750 return $config;
3751}
3752
3753sub get_depends {
3754 my ($dep) = @_;
3755
3756 my $kconfig = chomp_config $dep;
3757
3758 $dep = $depends{"$kconfig"};
3759
3760 # the dep string we have saves the dependencies as they
3761 # were found, including expressions like ! && ||. We
3762 # want to split this out into just an array of configs.
3763
3764 my $valid = "A-Za-z_0-9";
3765
3766 my @configs;
3767
3768 while ($dep =~ /[$valid]/) {
3769 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3770 my $conf = "CONFIG_" . $1;
3771
3772 $configs[$#configs + 1] = $conf;
3773
3774 $dep =~ s/^[^$valid]*[$valid]+//;
3775 } else {
3776 dodie "this should never happen";
3777 }
3778 }
3779
3780 return @configs;
3781}
3782
3783sub test_this_config {
3784 my ($config) = @_;
3785
3786 my $found;
3787
3788 # if we already processed this config, skip it
3789 if (defined($processed_configs{$config})) {
3790 return undef;
3791 }
3792 $processed_configs{$config} = 1;
3793
3794 # if this config failed during this round, skip it
3795 if (defined($nochange_config{$config})) {
3796 return undef;
3797 }
3798
3799 my $kconfig = chomp_config $config;
3800
3801 # Test dependencies first
3802 if (defined($depends{"$kconfig"})) {
3803 my @parents = get_depends $config;
3804 foreach my $parent (@parents) {
3805 # if the parent is in the min config, check it first
3806 next if (!defined($min_configs{$parent}));
3807 $found = test_this_config($parent);
3808 if (defined($found)) {
3809 return $found;
3810 }
3811 }
3812 }
3813
3814 # Remove this config from the list of configs
3815 # do a make olddefconfig and then read the resulting
3816 # .config to make sure it is missing the config that
3817 # we had before
3818 my %configs = %min_configs;
3819 $configs{$config} = "# $config is not set";
3820 make_new_config ((values %configs), (values %keep_configs));
3821 make_oldconfig;
3822 delete $configs{$config};
3823 undef %configs;
3824 assign_configs \%configs, $output_config;
3825
3826 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3827 return $config;
3828 }
3829
3830 doprint "disabling config $config did not change .config\n";
3831
3832 $nochange_config{$config} = 1;
3833
3834 return undef;
3835}
3836
3837sub make_min_config {
3838 my ($i) = @_;
3839
3840 my $type = $minconfig_type;
3841 if ($type ne "boot" && $type ne "test") {
3842 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3843 " make_min_config works only with 'boot' and 'test'\n" and return;
3844 }
3845
3846 if (!defined($output_minconfig)) {
3847 fail "OUTPUT_MIN_CONFIG not defined" and return;
3848 }
3849
3850 # If output_minconfig exists, and the start_minconfig
3851 # came from min_config, than ask if we should use
3852 # that instead.
3853 if (-f $output_minconfig && !$start_minconfig_defined) {
3854 print "$output_minconfig exists\n";
3855 if (!defined($use_output_minconfig)) {
3856 if (read_yn " Use it as minconfig?") {
3857 $start_minconfig = $output_minconfig;
3858 }
3859 } elsif ($use_output_minconfig > 0) {
3860 doprint "Using $output_minconfig as MIN_CONFIG\n";
3861 $start_minconfig = $output_minconfig;
3862 } else {
3863 doprint "Set to still use MIN_CONFIG as starting point\n";
3864 }
3865 }
3866
3867 if (!defined($start_minconfig)) {
3868 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3869 }
3870
3871 my $temp_config = "$tmpdir/temp_config";
3872
3873 # First things first. We build an allnoconfig to find
3874 # out what the defaults are that we can't touch.
3875 # Some are selections, but we really can't handle selections.
3876
3877 my $save_minconfig = $minconfig;
3878 undef $minconfig;
3879
3880 run_command "$make allnoconfig" or return 0;
3881
3882 read_depends;
3883
3884 process_config_ignore $output_config;
3885
3886 undef %save_configs;
3887 undef %min_configs;
3888
3889 if (defined($ignore_config)) {
3890 # make sure the file exists
3891 `touch $ignore_config`;
3892 assign_configs \%save_configs, $ignore_config;
3893 }
3894
3895 %keep_configs = %save_configs;
3896
3897 doprint "Load initial configs from $start_minconfig\n";
3898
3899 # Look at the current min configs, and save off all the
3900 # ones that were set via the allnoconfig
3901 assign_configs \%min_configs, $start_minconfig;
3902
3903 my @config_keys = keys %min_configs;
3904
3905 # All configs need a depcount
3906 foreach my $config (@config_keys) {
3907 my $kconfig = chomp_config $config;
3908 if (!defined $depcount{$kconfig}) {
3909 $depcount{$kconfig} = 0;
3910 }
3911 }
3912
3913 # Remove anything that was set by the make allnoconfig
3914 # we shouldn't need them as they get set for us anyway.
3915 foreach my $config (@config_keys) {
3916 # Remove anything in the ignore_config
3917 if (defined($keep_configs{$config})) {
3918 my $file = $ignore_config;
3919 $file =~ s,.*/(.*?)$,$1,;
3920 doprint "$config set by $file ... ignored\n";
3921 delete $min_configs{$config};
3922 next;
3923 }
3924 # But make sure the settings are the same. If a min config
3925 # sets a selection, we do not want to get rid of it if
3926 # it is not the same as what we have. Just move it into
3927 # the keep configs.
3928 if (defined($config_ignore{$config})) {
3929 if ($config_ignore{$config} ne $min_configs{$config}) {
3930 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3931 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3932 $keep_configs{$config} = $min_configs{$config};
3933 } else {
3934 doprint "$config set by allnoconfig ... ignored\n";
3935 }
3936 delete $min_configs{$config};
3937 }
3938 }
3939
3940 my $done = 0;
3941 my $take_two = 0;
3942
3943 while (!$done) {
3944 my $config;
3945 my $found;
3946
3947 # Now disable each config one by one and do a make oldconfig
3948 # till we find a config that changes our list.
3949
3950 my @test_configs = keys %min_configs;
3951
3952 # Sort keys by who is most dependent on
3953 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3954 @test_configs ;
3955
3956 # Put configs that did not modify the config at the end.
3957 my $reset = 1;
3958 for (my $i = 0; $i < $#test_configs; $i++) {
3959 if (!defined($nochange_config{$test_configs[0]})) {
3960 $reset = 0;
3961 last;
3962 }
3963 # This config didn't change the .config last time.
3964 # Place it at the end
3965 my $config = shift @test_configs;
3966 push @test_configs, $config;
3967 }
3968
3969 # if every test config has failed to modify the .config file
3970 # in the past, then reset and start over.
3971 if ($reset) {
3972 undef %nochange_config;
3973 }
3974
3975 undef %processed_configs;
3976
3977 foreach my $config (@test_configs) {
3978
3979 $found = test_this_config $config;
3980
3981 last if (defined($found));
3982
3983 # oh well, try another config
3984 }
3985
3986 if (!defined($found)) {
3987 # we could have failed due to the nochange_config hash
3988 # reset and try again
3989 if (!$take_two) {
3990 undef %nochange_config;
3991 $take_two = 1;
3992 next;
3993 }
3994 doprint "No more configs found that we can disable\n";
3995 $done = 1;
3996 last;
3997 }
3998 $take_two = 0;
3999
4000 $config = $found;
4001
4002 doprint "Test with $config disabled\n";
4003
4004 # set in_bisect to keep build and monitor from dieing
4005 $in_bisect = 1;
4006
4007 my $failed = 0;
4008 build "oldconfig" or $failed = 1;
4009 if (!$failed) {
4010 start_monitor_and_install or $failed = 1;
4011
4012 if ($type eq "test" && !$failed) {
4013 do_run_test or $failed = 1;
4014 }
4015
4016 end_monitor;
4017 }
4018
4019 $in_bisect = 0;
4020
4021 if ($failed) {
4022 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
4023 # this config is needed, add it to the ignore list.
4024 $keep_configs{$config} = $min_configs{$config};
4025 $save_configs{$config} = $min_configs{$config};
4026 delete $min_configs{$config};
4027
4028 # update new ignore configs
4029 if (defined($ignore_config)) {
4030 open (OUT, ">$temp_config") or
4031 dodie "Can't write to $temp_config";
4032 foreach my $config (keys %save_configs) {
4033 print OUT "$save_configs{$config}\n";
4034 }
4035 close OUT;
4036 run_command "mv $temp_config $ignore_config" or
4037 dodie "failed to copy update to $ignore_config";
4038 }
4039
4040 } else {
4041 # We booted without this config, remove it from the minconfigs.
4042 doprint "$config is not needed, disabling\n";
4043
4044 delete $min_configs{$config};
4045
4046 # Also disable anything that is not enabled in this config
4047 my %configs;
4048 assign_configs \%configs, $output_config;
4049 my @config_keys = keys %min_configs;
4050 foreach my $config (@config_keys) {
4051 if (!defined($configs{$config})) {
4052 doprint "$config is not set, disabling\n";
4053 delete $min_configs{$config};
4054 }
4055 }
4056
4057 # Save off all the current mandatory configs
4058 open (OUT, ">$temp_config") or
4059 dodie "Can't write to $temp_config";
4060 foreach my $config (keys %keep_configs) {
4061 print OUT "$keep_configs{$config}\n";
4062 }
4063 foreach my $config (keys %min_configs) {
4064 print OUT "$min_configs{$config}\n";
4065 }
4066 close OUT;
4067
4068 run_command "mv $temp_config $output_minconfig" or
4069 dodie "failed to copy update to $output_minconfig";
4070 }
4071
4072 doprint "Reboot and wait $sleep_time seconds\n";
4073 reboot_to_good $sleep_time;
4074 }
4075
4076 success $i;
4077 return 1;
4078}
4079
4080sub make_warnings_file {
4081 my ($i) = @_;
4082
4083 if (!defined($warnings_file)) {
4084 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4085 }
4086
4087 if ($build_type eq "nobuild") {
4088 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4089 }
4090
4091 build $build_type or dodie "Failed to build";
4092
4093 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4094
4095 open(IN, $buildlog) or dodie "Can't open $buildlog";
4096 while (<IN>) {
4097 # Some compilers use UTF-8 extended for quotes
4098 # for distcc heterogeneous systems, this causes issues
4099 s/$utf8_quote/'/g;
4100
4101 if (/$check_build_re/) {
4102 print OUT;
4103 }
4104 }
4105 close(IN);
4106
4107 close(OUT);
4108
4109 success $i;
4110}
4111
4112sub option_defined {
4113 my ($option) = @_;
4114
4115 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4116 return 1;
4117 }
4118
4119 return 0;
4120}
4121
4122sub __set_test_option {
4123 my ($name, $i) = @_;
4124
4125 my $option = "$name\[$i\]";
4126
4127 if (option_defined($option)) {
4128 return $opt{$option};
4129 }
4130
4131 foreach my $test (keys %repeat_tests) {
4132 if ($i >= $test &&
4133 $i < $test + $repeat_tests{$test}) {
4134 $option = "$name\[$test\]";
4135 if (option_defined($option)) {
4136 return $opt{$option};
4137 }
4138 }
4139 }
4140
4141 if (option_defined($name)) {
4142 return $opt{$name};
4143 }
4144
4145 return undef;
4146}
4147
4148sub set_test_option {
4149 my ($name, $i) = @_;
4150
4151 my $option = __set_test_option($name, $i);
4152 return $option if (!defined($option));
4153
4154 return eval_option($name, $option, $i);
4155}
4156
4157sub find_mailer {
4158 my ($mailer) = @_;
4159
4160 my @paths = split /:/, $ENV{PATH};
4161
4162 # sendmail is usually in /usr/sbin
4163 $paths[$#paths + 1] = "/usr/sbin";
4164
4165 foreach my $path (@paths) {
4166 if (-x "$path/$mailer") {
4167 return $path;
4168 }
4169 }
4170
4171 return undef;
4172}
4173
4174sub do_send_mail {
4175 my ($subject, $message, $file) = @_;
4176
4177 if (!defined($mail_path)) {
4178 # find the mailer
4179 $mail_path = find_mailer $mailer;
4180 if (!defined($mail_path)) {
4181 die "\nCan not find $mailer in PATH\n";
4182 }
4183 }
4184
4185 my $header_file = "$tmpdir/header";
4186 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4187 print HEAD "To: $mailto\n";
4188 print HEAD "Subject: $subject\n\n";
4189 print HEAD "$message\n";
4190 close HEAD;
4191
4192 if (!defined($mail_command)) {
4193 if ($mailer eq "mail" || $mailer eq "mailx") {
4194 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4195 } elsif ($mailer eq "sendmail" ) {
4196 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4197 } else {
4198 die "\nYour mailer: $mailer is not supported.\n";
4199 }
4200 }
4201
4202 if (defined($file)) {
4203 $mail_command =~ s/\$BODY_FILE/$file/g;
4204 } else {
4205 $mail_command =~ s/\$BODY_FILE//g;
4206 }
4207
4208 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4209 $mail_command =~ s/\$MAILER/$mailer/g;
4210 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4211 $mail_command =~ s/\$MAILTO/$mailto/g;
4212 $mail_command =~ s/\$SUBJECT/$subject/g;
4213 $mail_command =~ s/\$MESSAGE/$message/g;
4214
4215 my $ret = run_command $mail_command;
4216 if (!$ret && defined($file)) {
4217 # try again without the file
4218 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4219 do_send_email($subject, $message);
4220 }
4221}
4222
4223sub send_email {
4224 if (defined($mailto)) {
4225 if (!defined($mailer)) {
4226 doprint "No email sent: email or mailer not specified in config.\n";
4227 return;
4228 }
4229 do_send_mail @_;
4230 }
4231}
4232
4233sub cancel_test {
4234 if ($monitor_cnt) {
4235 end_monitor;
4236 }
4237 if ($email_when_canceled) {
4238 my $name = get_test_name;
4239 send_email("KTEST: Your [$name] test was cancelled",
4240 "Your test started at $script_start_time was cancelled: sig int");
4241 }
4242 die "\nCaught Sig Int, test interrupted: $!\n"
4243}
4244
4245$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4246
4247if ($#ARGV == 0) {
4248 $ktest_config = $ARGV[0];
4249 if (! -f $ktest_config) {
4250 print "$ktest_config does not exist.\n";
4251 if (!read_yn "Create it?") {
4252 exit 0;
4253 }
4254 }
4255}
4256
4257if (! -f $ktest_config) {
4258 $newconfig = 1;
4259 get_test_case;
4260 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4261 print OUT << "EOF"
4262# Generated by ktest.pl
4263#
4264
4265# PWD is a ktest.pl variable that will result in the process working
4266# directory that ktest.pl is executed in.
4267
4268# THIS_DIR is automatically assigned the PWD of the path that generated
4269# the config file. It is best to use this variable when assigning other
4270# directory paths within this directory. This allows you to easily
4271# move the test cases to other locations or to other machines.
4272#
4273THIS_DIR := $variable{"PWD"}
4274
4275# Define each test with TEST_START
4276# The config options below it will override the defaults
4277TEST_START
4278TEST_TYPE = $default{"TEST_TYPE"}
4279
4280DEFAULTS
4281EOF
4282;
4283 close(OUT);
4284}
4285read_config $ktest_config;
4286
4287if (defined($opt{"LOG_FILE"})) {
4288 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4289}
4290
4291# Append any configs entered in manually to the config file.
4292my @new_configs = keys %entered_configs;
4293if ($#new_configs >= 0) {
4294 print "\nAppending entered in configs to $ktest_config\n";
4295 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4296 foreach my $config (@new_configs) {
4297 print OUT "$config = $entered_configs{$config}\n";
4298 $opt{$config} = process_variables($entered_configs{$config});
4299 }
4300}
4301
4302if (defined($opt{"LOG_FILE"})) {
4303 if ($opt{"CLEAR_LOG"}) {
4304 unlink $opt{"LOG_FILE"};
4305 }
4306 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4307 LOG->autoflush(1);
4308}
4309
4310doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4311
4312for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4313
4314 if (!$i) {
4315 doprint "DEFAULT OPTIONS:\n";
4316 } else {
4317 doprint "\nTEST $i OPTIONS";
4318 if (defined($repeat_tests{$i})) {
4319 $repeat = $repeat_tests{$i};
4320 doprint " ITERATE $repeat";
4321 }
4322 doprint "\n";
4323 }
4324
4325 foreach my $option (sort keys %opt) {
4326 if ($option =~ /\[(\d+)\]$/) {
4327 next if ($i != $1);
4328 } else {
4329 next if ($i);
4330 }
4331
4332 doprint "$option = $opt{$option}\n";
4333 }
4334}
4335
4336$SIG{INT} = qw(cancel_test);
4337
4338# First we need to do is the builds
4339for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4340
4341 # Do not reboot on failing test options
4342 $no_reboot = 1;
4343 $reboot_success = 0;
4344
4345 $have_version = 0;
4346
4347 $iteration = $i;
4348
4349 $build_time = 0;
4350 $install_time = 0;
4351 $reboot_time = 0;
4352 $test_time = 0;
4353
4354 undef %force_config;
4355
4356 my $makecmd = set_test_option("MAKE_CMD", $i);
4357
4358 $outputdir = set_test_option("OUTPUT_DIR", $i);
4359 $builddir = set_test_option("BUILD_DIR", $i);
4360
4361 chdir $builddir || dodie "can't change directory to $builddir";
4362
4363 if (!-d $outputdir) {
4364 mkpath($outputdir) or
4365 dodie "can't create $outputdir";
4366 }
4367
4368 $make = "$makecmd O=$outputdir";
4369
4370 # Load all the options into their mapped variable names
4371 foreach my $opt (keys %option_map) {
4372 ${$option_map{$opt}} = set_test_option($opt, $i);
4373 }
4374
4375 $start_minconfig_defined = 1;
4376
4377 # The first test may override the PRE_KTEST option
4378 if ($i == 1) {
4379 if (defined($pre_ktest)) {
4380 doprint "\n";
4381 run_command $pre_ktest;
4382 }
4383 if ($email_when_started) {
4384 my $name = get_test_name;
4385 send_email("KTEST: Your [$name] test was started",
4386 "Your test was started on $script_start_time");
4387 }
4388 }
4389
4390 # Any test can override the POST_KTEST option
4391 # The last test takes precedence.
4392 if (defined($post_ktest)) {
4393 $final_post_ktest = $post_ktest;
4394 }
4395
4396 if (!defined($start_minconfig)) {
4397 $start_minconfig_defined = 0;
4398 $start_minconfig = $minconfig;
4399 }
4400
4401 if (!-d $tmpdir) {
4402 mkpath($tmpdir) or
4403 dodie "can't create $tmpdir";
4404 }
4405
4406 $ENV{"SSH_USER"} = $ssh_user;
4407 $ENV{"MACHINE"} = $machine;
4408
4409 $buildlog = "$tmpdir/buildlog-$machine";
4410 $testlog = "$tmpdir/testlog-$machine";
4411 $dmesg = "$tmpdir/dmesg-$machine";
4412 $output_config = "$outputdir/.config";
4413
4414 if (!$buildonly) {
4415 $target = "$ssh_user\@$machine";
4416 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4417 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4418 } elsif ($reboot_type eq "grub2") {
4419 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4420 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4421 } elsif ($reboot_type eq "syslinux") {
4422 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4423 }
4424 }
4425
4426 my $run_type = $build_type;
4427 if ($test_type eq "patchcheck") {
4428 $run_type = $patchcheck_type;
4429 } elsif ($test_type eq "bisect") {
4430 $run_type = $bisect_type;
4431 } elsif ($test_type eq "config_bisect") {
4432 $run_type = $config_bisect_type;
4433 } elsif ($test_type eq "make_min_config") {
4434 $run_type = "";
4435 } elsif ($test_type eq "make_warnings_file") {
4436 $run_type = "";
4437 }
4438
4439 # mistake in config file?
4440 if (!defined($run_type)) {
4441 $run_type = "ERROR";
4442 }
4443
4444 my $installme = "";
4445 $installme = " no_install" if ($no_install);
4446
4447 my $name = "";
4448
4449 if (defined($test_name)) {
4450 $name = " ($test_name)";
4451 }
4452
4453 doprint "\n\n";
4454
4455 if (defined($opt{"LOG_FILE"})) {
4456 $test_log_start = tell(LOG);
4457 }
4458
4459 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4460
4461 if (defined($pre_test)) {
4462 my $ret = run_command $pre_test;
4463 if (!$ret && defined($pre_test_die) &&
4464 $pre_test_die) {
4465 dodie "failed to pre_test\n";
4466 }
4467 }
4468
4469 unlink $dmesg;
4470 unlink $buildlog;
4471 unlink $testlog;
4472
4473 if (defined($addconfig)) {
4474 my $min = $minconfig;
4475 if (!defined($minconfig)) {
4476 $min = "";
4477 }
4478 run_command "cat $addconfig $min > $tmpdir/add_config" or
4479 dodie "Failed to create temp config";
4480 $minconfig = "$tmpdir/add_config";
4481 }
4482
4483 if (defined($checkout)) {
4484 run_command "git checkout $checkout" or
4485 dodie "failed to checkout $checkout";
4486 }
4487
4488 $no_reboot = 0;
4489
4490 # A test may opt to not reboot the box
4491 if ($reboot_on_success) {
4492 $reboot_success = 1;
4493 }
4494
4495 if ($test_type eq "bisect") {
4496 bisect $i;
4497 next;
4498 } elsif ($test_type eq "config_bisect") {
4499 config_bisect $i;
4500 next;
4501 } elsif ($test_type eq "patchcheck") {
4502 patchcheck $i;
4503 next;
4504 } elsif ($test_type eq "make_min_config") {
4505 make_min_config $i;
4506 next;
4507 } elsif ($test_type eq "make_warnings_file") {
4508 $no_reboot = 1;
4509 make_warnings_file $i;
4510 next;
4511 }
4512
4513 if ($build_type ne "nobuild") {
4514 build $build_type or next;
4515 check_buildlog or next;
4516 }
4517
4518 if ($test_type eq "install") {
4519 get_version;
4520 install;
4521 success $i;
4522 next;
4523 }
4524
4525 if ($test_type ne "build") {
4526 my $failed = 0;
4527 start_monitor_and_install or $failed = 1;
4528
4529 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4530 do_run_test or $failed = 1;
4531 }
4532 end_monitor;
4533 if ($failed) {
4534 print_times;
4535 next;
4536 }
4537 }
4538
4539 print_times;
4540
4541 success $i;
4542}
4543
4544if (defined($final_post_ktest)) {
4545
4546 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4547 run_command $cp_final_post_ktest;
4548}
4549
4550if ($opt{"POWEROFF_ON_SUCCESS"}) {
4551 halt;
4552} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4553 reboot_to_good;
4554} elsif (defined($switch_to_good)) {
4555 # still need to get to the good kernel
4556 run_command $switch_to_good;
4557}
4558
4559doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4560
4561if ($email_when_finished) {
4562 send_email("KTEST: Your test has finished!",
4563 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4564}
4565
4566if (defined($opt{"LOG_FILE"})) {
4567 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4568 close LOG;
4569}
4570
4571exit 0;
4572
4573##
4574# The following are here to standardize tabs/spaces/etc across the most likely editors
4575###
4576
4577# Local Variables:
4578# mode: perl
4579# End:
4580# 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;
21my %evals;
22
23#default opts
24my %default = (
25 "NUM_TESTS" => 1,
26 "TEST_TYPE" => "build",
27 "BUILD_TYPE" => "randconfig",
28 "MAKE_CMD" => "make",
29 "CLOSE_CONSOLE_SIGNAL" => "INT",
30 "TIMEOUT" => 120,
31 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
32 "SLEEP_TIME" => 60, # sleep time between tests
33 "BUILD_NOCLEAN" => 0,
34 "REBOOT_ON_ERROR" => 0,
35 "POWEROFF_ON_ERROR" => 0,
36 "REBOOT_ON_SUCCESS" => 1,
37 "POWEROFF_ON_SUCCESS" => 0,
38 "BUILD_OPTIONS" => "",
39 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
40 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
41 "CLEAR_LOG" => 0,
42 "BISECT_MANUAL" => 0,
43 "BISECT_SKIP" => 1,
44 "BISECT_TRIES" => 1,
45 "MIN_CONFIG_TYPE" => "boot",
46 "SUCCESS_LINE" => "login:",
47 "DETECT_TRIPLE_FAULT" => 1,
48 "NO_INSTALL" => 0,
49 "BOOTED_TIMEOUT" => 1,
50 "DIE_ON_FAILURE" => 1,
51 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
52 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
53 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
54 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
55 "STOP_AFTER_SUCCESS" => 10,
56 "STOP_AFTER_FAILURE" => 60,
57 "STOP_TEST_AFTER" => 600,
58 "MAX_MONITOR_WAIT" => 1800,
59 "GRUB_REBOOT" => "grub2-reboot",
60 "SYSLINUX" => "extlinux",
61 "SYSLINUX_PATH" => "/boot/extlinux",
62
63# required, and we will ask users if they don't have them but we keep the default
64# value something that is common.
65 "REBOOT_TYPE" => "grub",
66 "LOCALVERSION" => "-test",
67 "SSH_USER" => "root",
68 "BUILD_TARGET" => "arch/x86/boot/bzImage",
69 "TARGET_IMAGE" => "/boot/vmlinuz-test",
70
71 "LOG_FILE" => undef,
72 "IGNORE_UNUSED" => 0,
73);
74
75my $ktest_config = "ktest.conf";
76my $version;
77my $have_version = 0;
78my $machine;
79my $last_machine;
80my $ssh_user;
81my $tmpdir;
82my $builddir;
83my $outputdir;
84my $output_config;
85my $test_type;
86my $build_type;
87my $build_options;
88my $final_post_ktest;
89my $pre_ktest;
90my $post_ktest;
91my $pre_test;
92my $post_test;
93my $pre_build;
94my $post_build;
95my $pre_build_die;
96my $post_build_die;
97my $reboot_type;
98my $reboot_script;
99my $power_cycle;
100my $reboot;
101my $reboot_on_error;
102my $switch_to_good;
103my $switch_to_test;
104my $poweroff_on_error;
105my $reboot_on_success;
106my $die_on_failure;
107my $powercycle_after_reboot;
108my $poweroff_after_halt;
109my $max_monitor_wait;
110my $ssh_exec;
111my $scp_to_target;
112my $scp_to_target_install;
113my $power_off;
114my $grub_menu;
115my $last_grub_menu;
116my $grub_file;
117my $grub_number;
118my $grub_reboot;
119my $syslinux;
120my $syslinux_path;
121my $syslinux_label;
122my $target;
123my $make;
124my $pre_install;
125my $post_install;
126my $no_install;
127my $noclean;
128my $minconfig;
129my $start_minconfig;
130my $start_minconfig_defined;
131my $output_minconfig;
132my $minconfig_type;
133my $use_output_minconfig;
134my $warnings_file;
135my $ignore_config;
136my $ignore_errors;
137my $addconfig;
138my $in_bisect = 0;
139my $bisect_bad_commit = "";
140my $reverse_bisect;
141my $bisect_manual;
142my $bisect_skip;
143my $bisect_tries;
144my $config_bisect_good;
145my $bisect_ret_good;
146my $bisect_ret_bad;
147my $bisect_ret_skip;
148my $bisect_ret_abort;
149my $bisect_ret_default;
150my $in_patchcheck = 0;
151my $run_test;
152my $buildlog;
153my $testlog;
154my $dmesg;
155my $monitor_fp;
156my $monitor_pid;
157my $monitor_cnt = 0;
158my $sleep_time;
159my $bisect_sleep_time;
160my $patchcheck_sleep_time;
161my $ignore_warnings;
162my $store_failures;
163my $store_successes;
164my $test_name;
165my $timeout;
166my $booted_timeout;
167my $detect_triplefault;
168my $console;
169my $close_console_signal;
170my $reboot_success_line;
171my $success_line;
172my $stop_after_success;
173my $stop_after_failure;
174my $stop_test_after;
175my $build_target;
176my $target_image;
177my $checkout;
178my $localversion;
179my $iteration = 0;
180my $successes = 0;
181my $stty_orig;
182
183my $bisect_good;
184my $bisect_bad;
185my $bisect_type;
186my $bisect_start;
187my $bisect_replay;
188my $bisect_files;
189my $bisect_reverse;
190my $bisect_check;
191
192my $config_bisect;
193my $config_bisect_type;
194my $config_bisect_check;
195
196my $patchcheck_type;
197my $patchcheck_start;
198my $patchcheck_cherry;
199my $patchcheck_end;
200
201my $build_time;
202my $install_time;
203my $reboot_time;
204my $test_time;
205
206# set when a test is something other that just building or install
207# which would require more options.
208my $buildonly = 1;
209
210# tell build not to worry about warnings, even when WARNINGS_FILE is set
211my $warnings_ok = 0;
212
213# set when creating a new config
214my $newconfig = 0;
215
216my %entered_configs;
217my %config_help;
218my %variable;
219
220# force_config is the list of configs that we force enabled (or disabled)
221# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
222my %force_config;
223
224# do not force reboots on config problems
225my $no_reboot = 1;
226
227# reboot on success
228my $reboot_success = 0;
229
230my %option_map = (
231 "MACHINE" => \$machine,
232 "SSH_USER" => \$ssh_user,
233 "TMP_DIR" => \$tmpdir,
234 "OUTPUT_DIR" => \$outputdir,
235 "BUILD_DIR" => \$builddir,
236 "TEST_TYPE" => \$test_type,
237 "PRE_KTEST" => \$pre_ktest,
238 "POST_KTEST" => \$post_ktest,
239 "PRE_TEST" => \$pre_test,
240 "POST_TEST" => \$post_test,
241 "BUILD_TYPE" => \$build_type,
242 "BUILD_OPTIONS" => \$build_options,
243 "PRE_BUILD" => \$pre_build,
244 "POST_BUILD" => \$post_build,
245 "PRE_BUILD_DIE" => \$pre_build_die,
246 "POST_BUILD_DIE" => \$post_build_die,
247 "POWER_CYCLE" => \$power_cycle,
248 "REBOOT" => \$reboot,
249 "BUILD_NOCLEAN" => \$noclean,
250 "MIN_CONFIG" => \$minconfig,
251 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
252 "START_MIN_CONFIG" => \$start_minconfig,
253 "MIN_CONFIG_TYPE" => \$minconfig_type,
254 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
255 "WARNINGS_FILE" => \$warnings_file,
256 "IGNORE_CONFIG" => \$ignore_config,
257 "TEST" => \$run_test,
258 "ADD_CONFIG" => \$addconfig,
259 "REBOOT_TYPE" => \$reboot_type,
260 "GRUB_MENU" => \$grub_menu,
261 "GRUB_FILE" => \$grub_file,
262 "GRUB_REBOOT" => \$grub_reboot,
263 "SYSLINUX" => \$syslinux,
264 "SYSLINUX_PATH" => \$syslinux_path,
265 "SYSLINUX_LABEL" => \$syslinux_label,
266 "PRE_INSTALL" => \$pre_install,
267 "POST_INSTALL" => \$post_install,
268 "NO_INSTALL" => \$no_install,
269 "REBOOT_SCRIPT" => \$reboot_script,
270 "REBOOT_ON_ERROR" => \$reboot_on_error,
271 "SWITCH_TO_GOOD" => \$switch_to_good,
272 "SWITCH_TO_TEST" => \$switch_to_test,
273 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
274 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
275 "DIE_ON_FAILURE" => \$die_on_failure,
276 "POWER_OFF" => \$power_off,
277 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
278 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
279 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
280 "SLEEP_TIME" => \$sleep_time,
281 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
282 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
283 "IGNORE_WARNINGS" => \$ignore_warnings,
284 "IGNORE_ERRORS" => \$ignore_errors,
285 "BISECT_MANUAL" => \$bisect_manual,
286 "BISECT_SKIP" => \$bisect_skip,
287 "BISECT_TRIES" => \$bisect_tries,
288 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
289 "BISECT_RET_GOOD" => \$bisect_ret_good,
290 "BISECT_RET_BAD" => \$bisect_ret_bad,
291 "BISECT_RET_SKIP" => \$bisect_ret_skip,
292 "BISECT_RET_ABORT" => \$bisect_ret_abort,
293 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
294 "STORE_FAILURES" => \$store_failures,
295 "STORE_SUCCESSES" => \$store_successes,
296 "TEST_NAME" => \$test_name,
297 "TIMEOUT" => \$timeout,
298 "BOOTED_TIMEOUT" => \$booted_timeout,
299 "CONSOLE" => \$console,
300 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
301 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
302 "SUCCESS_LINE" => \$success_line,
303 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
304 "STOP_AFTER_SUCCESS" => \$stop_after_success,
305 "STOP_AFTER_FAILURE" => \$stop_after_failure,
306 "STOP_TEST_AFTER" => \$stop_test_after,
307 "BUILD_TARGET" => \$build_target,
308 "SSH_EXEC" => \$ssh_exec,
309 "SCP_TO_TARGET" => \$scp_to_target,
310 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
311 "CHECKOUT" => \$checkout,
312 "TARGET_IMAGE" => \$target_image,
313 "LOCALVERSION" => \$localversion,
314
315 "BISECT_GOOD" => \$bisect_good,
316 "BISECT_BAD" => \$bisect_bad,
317 "BISECT_TYPE" => \$bisect_type,
318 "BISECT_START" => \$bisect_start,
319 "BISECT_REPLAY" => \$bisect_replay,
320 "BISECT_FILES" => \$bisect_files,
321 "BISECT_REVERSE" => \$bisect_reverse,
322 "BISECT_CHECK" => \$bisect_check,
323
324 "CONFIG_BISECT" => \$config_bisect,
325 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
326 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
327
328 "PATCHCHECK_TYPE" => \$patchcheck_type,
329 "PATCHCHECK_START" => \$patchcheck_start,
330 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
331 "PATCHCHECK_END" => \$patchcheck_end,
332);
333
334# Options may be used by other options, record them.
335my %used_options;
336
337# default variables that can be used
338chomp ($variable{"PWD"} = `pwd`);
339
340$config_help{"MACHINE"} = << "EOF"
341 The machine hostname that you will test.
342 For build only tests, it is still needed to differentiate log files.
343EOF
344 ;
345$config_help{"SSH_USER"} = << "EOF"
346 The box is expected to have ssh on normal bootup, provide the user
347 (most likely root, since you need privileged operations)
348EOF
349 ;
350$config_help{"BUILD_DIR"} = << "EOF"
351 The directory that contains the Linux source code (full path).
352 You can use \${PWD} that will be the path where ktest.pl is run, or use
353 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
354EOF
355 ;
356$config_help{"OUTPUT_DIR"} = << "EOF"
357 The directory that the objects will be built (full path).
358 (can not be same as BUILD_DIR)
359 You can use \${PWD} that will be the path where ktest.pl is run, or use
360 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
361EOF
362 ;
363$config_help{"BUILD_TARGET"} = << "EOF"
364 The location of the compiled file to copy to the target.
365 (relative to OUTPUT_DIR)
366EOF
367 ;
368$config_help{"BUILD_OPTIONS"} = << "EOF"
369 Options to add to \"make\" when building.
370 i.e. -j20
371EOF
372 ;
373$config_help{"TARGET_IMAGE"} = << "EOF"
374 The place to put your image on the test machine.
375EOF
376 ;
377$config_help{"POWER_CYCLE"} = << "EOF"
378 A script or command to reboot the box.
379
380 Here is a digital loggers power switch example
381 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
382
383 Here is an example to reboot a virtual box on the current host
384 with the name "Guest".
385 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
386EOF
387 ;
388$config_help{"CONSOLE"} = << "EOF"
389 The script or command that reads the console
390
391 If you use ttywatch server, something like the following would work.
392CONSOLE = nc -d localhost 3001
393
394 For a virtual machine with guest name "Guest".
395CONSOLE = virsh console Guest
396EOF
397 ;
398$config_help{"LOCALVERSION"} = << "EOF"
399 Required version ending to differentiate the test
400 from other linux builds on the system.
401EOF
402 ;
403$config_help{"REBOOT_TYPE"} = << "EOF"
404 Way to reboot the box to the test kernel.
405 Only valid options so far are "grub", "grub2", "syslinux", and "script".
406
407 If you specify grub, it will assume grub version 1
408 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
409 and select that target to reboot to the kernel. If this is not
410 your setup, then specify "script" and have a command or script
411 specified in REBOOT_SCRIPT to boot to the target.
412
413 The entry in /boot/grub/menu.lst must be entered in manually.
414 The test will not modify that file.
415
416 If you specify grub2, then you also need to specify both \$GRUB_MENU
417 and \$GRUB_FILE.
418
419 If you specify syslinux, then you may use SYSLINUX to define the syslinux
420 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
421 the syslinux install (defaults to /boot/extlinux). But you have to specify
422 SYSLINUX_LABEL to define the label to boot to for the test kernel.
423EOF
424 ;
425$config_help{"GRUB_MENU"} = << "EOF"
426 The grub title name for the test kernel to boot
427 (Only mandatory if REBOOT_TYPE = grub or grub2)
428
429 Note, ktest.pl will not update the grub menu.lst, you need to
430 manually add an option for the test. ktest.pl will search
431 the grub menu.lst for this option to find what kernel to
432 reboot into.
433
434 For example, if in the /boot/grub/menu.lst the test kernel title has:
435 title Test Kernel
436 kernel vmlinuz-test
437 GRUB_MENU = Test Kernel
438
439 For grub2, a search of \$GRUB_FILE is performed for the lines
440 that begin with "menuentry". It will not detect submenus. The
441 menu must be a non-nested menu. Add the quotes used in the menu
442 to guarantee your selection, as the first menuentry with the content
443 of \$GRUB_MENU that is found will be used.
444EOF
445 ;
446$config_help{"GRUB_FILE"} = << "EOF"
447 If grub2 is used, the full path for the grub.cfg file is placed
448 here. Use something like /boot/grub2/grub.cfg to search.
449EOF
450 ;
451$config_help{"SYSLINUX_LABEL"} = << "EOF"
452 If syslinux is used, the label that boots the target kernel must
453 be specified with SYSLINUX_LABEL.
454EOF
455 ;
456$config_help{"REBOOT_SCRIPT"} = << "EOF"
457 A script to reboot the target into the test kernel
458 (Only mandatory if REBOOT_TYPE = script)
459EOF
460 ;
461
462sub _logit {
463 if (defined($opt{"LOG_FILE"})) {
464 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
465 print OUT @_;
466 close(OUT);
467 }
468}
469
470sub logit {
471 if (defined($opt{"LOG_FILE"})) {
472 _logit @_;
473 } else {
474 print @_;
475 }
476}
477
478sub doprint {
479 print @_;
480 _logit @_;
481}
482
483sub read_prompt {
484 my ($cancel, $prompt) = @_;
485
486 my $ans;
487
488 for (;;) {
489 if ($cancel) {
490 print "$prompt [y/n/C] ";
491 } else {
492 print "$prompt [Y/n] ";
493 }
494 $ans = <STDIN>;
495 chomp $ans;
496 if ($ans =~ /^\s*$/) {
497 if ($cancel) {
498 $ans = "c";
499 } else {
500 $ans = "y";
501 }
502 }
503 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
504 if ($cancel) {
505 last if ($ans =~ /^c$/i);
506 print "Please answer either 'y', 'n' or 'c'.\n";
507 } else {
508 print "Please answer either 'y' or 'n'.\n";
509 }
510 }
511 if ($ans =~ /^c/i) {
512 exit;
513 }
514 if ($ans !~ /^y$/i) {
515 return 0;
516 }
517 return 1;
518}
519
520sub read_yn {
521 my ($prompt) = @_;
522
523 return read_prompt 0, $prompt;
524}
525
526sub read_ync {
527 my ($prompt) = @_;
528
529 return read_prompt 1, $prompt;
530}
531
532sub get_mandatory_config {
533 my ($config) = @_;
534 my $ans;
535
536 return if (defined($opt{$config}));
537
538 if (defined($config_help{$config})) {
539 print "\n";
540 print $config_help{$config};
541 }
542
543 for (;;) {
544 print "$config = ";
545 if (defined($default{$config}) && length($default{$config})) {
546 print "\[$default{$config}\] ";
547 }
548 $ans = <STDIN>;
549 $ans =~ s/^\s*(.*\S)\s*$/$1/;
550 if ($ans =~ /^\s*$/) {
551 if ($default{$config}) {
552 $ans = $default{$config};
553 } else {
554 print "Your answer can not be blank\n";
555 next;
556 }
557 }
558 $entered_configs{$config} = ${ans};
559 last;
560 }
561}
562
563sub show_time {
564 my ($time) = @_;
565
566 my $hours = 0;
567 my $minutes = 0;
568
569 if ($time > 3600) {
570 $hours = int($time / 3600);
571 $time -= $hours * 3600;
572 }
573 if ($time > 60) {
574 $minutes = int($time / 60);
575 $time -= $minutes * 60;
576 }
577
578 if ($hours > 0) {
579 doprint "$hours hour";
580 doprint "s" if ($hours > 1);
581 doprint " ";
582 }
583
584 if ($minutes > 0) {
585 doprint "$minutes minute";
586 doprint "s" if ($minutes > 1);
587 doprint " ";
588 }
589
590 doprint "$time second";
591 doprint "s" if ($time != 1);
592}
593
594sub print_times {
595 doprint "\n";
596 if ($build_time) {
597 doprint "Build time: ";
598 show_time($build_time);
599 doprint "\n";
600 }
601 if ($install_time) {
602 doprint "Install time: ";
603 show_time($install_time);
604 doprint "\n";
605 }
606 if ($reboot_time) {
607 doprint "Reboot time: ";
608 show_time($reboot_time);
609 doprint "\n";
610 }
611 if ($test_time) {
612 doprint "Test time: ";
613 show_time($test_time);
614 doprint "\n";
615 }
616 # reset for iterations like bisect
617 $build_time = 0;
618 $install_time = 0;
619 $reboot_time = 0;
620 $test_time = 0;
621}
622
623sub get_mandatory_configs {
624 get_mandatory_config("MACHINE");
625 get_mandatory_config("BUILD_DIR");
626 get_mandatory_config("OUTPUT_DIR");
627
628 if ($newconfig) {
629 get_mandatory_config("BUILD_OPTIONS");
630 }
631
632 # options required for other than just building a kernel
633 if (!$buildonly) {
634 get_mandatory_config("POWER_CYCLE");
635 get_mandatory_config("CONSOLE");
636 }
637
638 # options required for install and more
639 if ($buildonly != 1) {
640 get_mandatory_config("SSH_USER");
641 get_mandatory_config("BUILD_TARGET");
642 get_mandatory_config("TARGET_IMAGE");
643 }
644
645 get_mandatory_config("LOCALVERSION");
646
647 return if ($buildonly);
648
649 my $rtype = $opt{"REBOOT_TYPE"};
650
651 if (!defined($rtype)) {
652 if (!defined($opt{"GRUB_MENU"})) {
653 get_mandatory_config("REBOOT_TYPE");
654 $rtype = $entered_configs{"REBOOT_TYPE"};
655 } else {
656 $rtype = "grub";
657 }
658 }
659
660 if ($rtype eq "grub") {
661 get_mandatory_config("GRUB_MENU");
662 }
663
664 if ($rtype eq "grub2") {
665 get_mandatory_config("GRUB_MENU");
666 get_mandatory_config("GRUB_FILE");
667 }
668
669 if ($rtype eq "syslinux") {
670 get_mandatory_config("SYSLINUX_LABEL");
671 }
672}
673
674sub process_variables {
675 my ($value, $remove_undef) = @_;
676 my $retval = "";
677
678 # We want to check for '\', and it is just easier
679 # to check the previous characet of '$' and not need
680 # to worry if '$' is the first character. By adding
681 # a space to $value, we can just check [^\\]\$ and
682 # it will still work.
683 $value = " $value";
684
685 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
686 my $begin = $1;
687 my $var = $2;
688 my $end = $3;
689 # append beginning of value to retval
690 $retval = "$retval$begin";
691 if (defined($variable{$var})) {
692 $retval = "$retval$variable{$var}";
693 } elsif (defined($remove_undef) && $remove_undef) {
694 # for if statements, any variable that is not defined,
695 # we simple convert to 0
696 $retval = "${retval}0";
697 } else {
698 # put back the origin piece.
699 $retval = "$retval\$\{$var\}";
700 # This could be an option that is used later, save
701 # it so we don't warn if this option is not one of
702 # ktests options.
703 $used_options{$var} = 1;
704 }
705 $value = $end;
706 }
707 $retval = "$retval$value";
708
709 # remove the space added in the beginning
710 $retval =~ s/ //;
711
712 return "$retval"
713}
714
715sub set_value {
716 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
717
718 my $prvalue = process_variables($rvalue);
719
720 if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
721 # Note if a test is something other than build, then we
722 # will need other mandatory options.
723 if ($prvalue ne "install") {
724 # for bisect, we need to check BISECT_TYPE
725 if ($prvalue ne "bisect") {
726 $buildonly = 0;
727 }
728 } else {
729 # install still limits some mandatory options.
730 $buildonly = 2;
731 }
732 }
733
734 if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
735 if ($prvalue ne "install") {
736 $buildonly = 0;
737 } else {
738 # install still limits some mandatory options.
739 $buildonly = 2;
740 }
741 }
742
743 if (defined($opt{$lvalue})) {
744 if (!$override || defined(${$overrides}{$lvalue})) {
745 my $extra = "";
746 if ($override) {
747 $extra = "In the same override section!\n";
748 }
749 die "$name: $.: Option $lvalue defined more than once!\n$extra";
750 }
751 ${$overrides}{$lvalue} = $prvalue;
752 }
753
754 $opt{$lvalue} = $prvalue;
755}
756
757sub set_eval {
758 my ($lvalue, $rvalue, $name) = @_;
759
760 my $prvalue = process_variables($rvalue);
761 my $arr;
762
763 if (defined($evals{$lvalue})) {
764 $arr = $evals{$lvalue};
765 } else {
766 $arr = [];
767 $evals{$lvalue} = $arr;
768 }
769
770 push @{$arr}, $rvalue;
771}
772
773sub set_variable {
774 my ($lvalue, $rvalue) = @_;
775
776 if ($rvalue =~ /^\s*$/) {
777 delete $variable{$lvalue};
778 } else {
779 $rvalue = process_variables($rvalue);
780 $variable{$lvalue} = $rvalue;
781 }
782}
783
784sub process_compare {
785 my ($lval, $cmp, $rval) = @_;
786
787 # remove whitespace
788
789 $lval =~ s/^\s*//;
790 $lval =~ s/\s*$//;
791
792 $rval =~ s/^\s*//;
793 $rval =~ s/\s*$//;
794
795 if ($cmp eq "==") {
796 return $lval eq $rval;
797 } elsif ($cmp eq "!=") {
798 return $lval ne $rval;
799 } elsif ($cmp eq "=~") {
800 return $lval =~ m/$rval/;
801 } elsif ($cmp eq "!~") {
802 return $lval !~ m/$rval/;
803 }
804
805 my $statement = "$lval $cmp $rval";
806 my $ret = eval $statement;
807
808 # $@ stores error of eval
809 if ($@) {
810 return -1;
811 }
812
813 return $ret;
814}
815
816sub value_defined {
817 my ($val) = @_;
818
819 return defined($variable{$2}) ||
820 defined($opt{$2});
821}
822
823my $d = 0;
824sub process_expression {
825 my ($name, $val) = @_;
826
827 my $c = $d++;
828
829 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
830 my $express = $1;
831
832 if (process_expression($name, $express)) {
833 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
834 } else {
835 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
836 }
837 }
838
839 $d--;
840 my $OR = "\\|\\|";
841 my $AND = "\\&\\&";
842
843 while ($val =~ s/^(.*?)($OR|$AND)//) {
844 my $express = $1;
845 my $op = $2;
846
847 if (process_expression($name, $express)) {
848 if ($op eq "||") {
849 return 1;
850 }
851 } else {
852 if ($op eq "&&") {
853 return 0;
854 }
855 }
856 }
857
858 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
859 my $ret = process_compare($1, $2, $3);
860 if ($ret < 0) {
861 die "$name: $.: Unable to process comparison\n";
862 }
863 return $ret;
864 }
865
866 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
867 if (defined $1) {
868 return !value_defined($2);
869 } else {
870 return value_defined($2);
871 }
872 }
873
874 if ($val =~ /^\s*0\s*$/) {
875 return 0;
876 } elsif ($val =~ /^\s*\d+\s*$/) {
877 return 1;
878 }
879
880 die ("$name: $.: Undefined content $val in if statement\n");
881}
882
883sub process_if {
884 my ($name, $value) = @_;
885
886 # Convert variables and replace undefined ones with 0
887 my $val = process_variables($value, 1);
888 my $ret = process_expression $name, $val;
889
890 return $ret;
891}
892
893sub __read_config {
894 my ($config, $current_test_num) = @_;
895
896 my $in;
897 open($in, $config) || die "can't read file $config";
898
899 my $name = $config;
900 $name =~ s,.*/(.*),$1,;
901
902 my $test_num = $$current_test_num;
903 my $default = 1;
904 my $repeat = 1;
905 my $num_tests_set = 0;
906 my $skip = 0;
907 my $rest;
908 my $line;
909 my $test_case = 0;
910 my $if = 0;
911 my $if_set = 0;
912 my $override = 0;
913
914 my %overrides;
915
916 while (<$in>) {
917
918 # ignore blank lines and comments
919 next if (/^\s*$/ || /\s*\#/);
920
921 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
922
923 my $type = $1;
924 $rest = $2;
925 $line = $2;
926
927 my $old_test_num;
928 my $old_repeat;
929 $override = 0;
930
931 if ($type eq "TEST_START") {
932
933 if ($num_tests_set) {
934 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
935 }
936
937 $old_test_num = $test_num;
938 $old_repeat = $repeat;
939
940 $test_num += $repeat;
941 $default = 0;
942 $repeat = 1;
943 } else {
944 $default = 1;
945 }
946
947 # If SKIP is anywhere in the line, the command will be skipped
948 if ($rest =~ s/\s+SKIP\b//) {
949 $skip = 1;
950 } else {
951 $test_case = 1;
952 $skip = 0;
953 }
954
955 if ($rest =~ s/\sELSE\b//) {
956 if (!$if) {
957 die "$name: $.: ELSE found with out matching IF section\n$_";
958 }
959 $if = 0;
960
961 if ($if_set) {
962 $skip = 1;
963 } else {
964 $skip = 0;
965 }
966 }
967
968 if ($rest =~ s/\sIF\s+(.*)//) {
969 if (process_if($name, $1)) {
970 $if_set = 1;
971 } else {
972 $skip = 1;
973 }
974 $if = 1;
975 } else {
976 $if = 0;
977 $if_set = 0;
978 }
979
980 if (!$skip) {
981 if ($type eq "TEST_START") {
982 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
983 $repeat = $1;
984 $repeat_tests{"$test_num"} = $repeat;
985 }
986 } elsif ($rest =~ s/\sOVERRIDE\b//) {
987 # DEFAULT only
988 $override = 1;
989 # Clear previous overrides
990 %overrides = ();
991 }
992 }
993
994 if (!$skip && $rest !~ /^\s*$/) {
995 die "$name: $.: Gargbage found after $type\n$_";
996 }
997
998 if ($skip && $type eq "TEST_START") {
999 $test_num = $old_test_num;
1000 $repeat = $old_repeat;
1001 }
1002
1003 } elsif (/^\s*ELSE\b(.*)$/) {
1004 if (!$if) {
1005 die "$name: $.: ELSE found with out matching IF section\n$_";
1006 }
1007 $rest = $1;
1008 if ($if_set) {
1009 $skip = 1;
1010 $rest = "";
1011 } else {
1012 $skip = 0;
1013
1014 if ($rest =~ /\sIF\s+(.*)/) {
1015 # May be a ELSE IF section.
1016 if (process_if($name, $1)) {
1017 $if_set = 1;
1018 } else {
1019 $skip = 1;
1020 }
1021 $rest = "";
1022 } else {
1023 $if = 0;
1024 }
1025 }
1026
1027 if ($rest !~ /^\s*$/) {
1028 die "$name: $.: Gargbage found after DEFAULTS\n$_";
1029 }
1030
1031 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1032
1033 next if ($skip);
1034
1035 if (!$default) {
1036 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1037 }
1038
1039 my $file = process_variables($1);
1040
1041 if ($file !~ m,^/,) {
1042 # check the path of the config file first
1043 if ($config =~ m,(.*)/,) {
1044 if (-f "$1/$file") {
1045 $file = "$1/$file";
1046 }
1047 }
1048 }
1049
1050 if ( ! -r $file ) {
1051 die "$name: $.: Can't read file $file\n$_";
1052 }
1053
1054 if (__read_config($file, \$test_num)) {
1055 $test_case = 1;
1056 }
1057
1058 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1059
1060 next if ($skip);
1061
1062 my $lvalue = $1;
1063 my $rvalue = $2;
1064
1065 if ($default || $lvalue =~ /\[\d+\]$/) {
1066 set_eval($lvalue, $rvalue, $name);
1067 } else {
1068 my $val = "$lvalue\[$test_num\]";
1069 set_eval($val, $rvalue, $name);
1070 }
1071
1072 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1073
1074 next if ($skip);
1075
1076 my $lvalue = $1;
1077 my $rvalue = $2;
1078
1079 if (!$default &&
1080 ($lvalue eq "NUM_TESTS" ||
1081 $lvalue eq "LOG_FILE" ||
1082 $lvalue eq "CLEAR_LOG")) {
1083 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1084 }
1085
1086 if ($lvalue eq "NUM_TESTS") {
1087 if ($test_num) {
1088 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1089 }
1090 if (!$default) {
1091 die "$name: $.: NUM_TESTS must be set in default section\n";
1092 }
1093 $num_tests_set = 1;
1094 }
1095
1096 if ($default || $lvalue =~ /\[\d+\]$/) {
1097 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1098 } else {
1099 my $val = "$lvalue\[$test_num\]";
1100 set_value($val, $rvalue, $override, \%overrides, $name);
1101
1102 if ($repeat > 1) {
1103 $repeats{$val} = $repeat;
1104 }
1105 }
1106 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1107 next if ($skip);
1108
1109 my $lvalue = $1;
1110 my $rvalue = $2;
1111
1112 # process config variables.
1113 # Config variables are only active while reading the
1114 # config and can be defined anywhere. They also ignore
1115 # TEST_START and DEFAULTS, but are skipped if they are in
1116 # on of these sections that have SKIP defined.
1117 # The save variable can be
1118 # defined multiple times and the new one simply overrides
1119 # the prevous one.
1120 set_variable($lvalue, $rvalue);
1121
1122 } else {
1123 die "$name: $.: Garbage found in config\n$_";
1124 }
1125 }
1126
1127 if ($test_num) {
1128 $test_num += $repeat - 1;
1129 $opt{"NUM_TESTS"} = $test_num;
1130 }
1131
1132 close($in);
1133
1134 $$current_test_num = $test_num;
1135
1136 return $test_case;
1137}
1138
1139sub get_test_case {
1140 print "What test case would you like to run?\n";
1141 print " (build, install or boot)\n";
1142 print " Other tests are available but require editing the config file\n";
1143 my $ans = <STDIN>;
1144 chomp $ans;
1145 $default{"TEST_TYPE"} = $ans;
1146}
1147
1148sub read_config {
1149 my ($config) = @_;
1150
1151 my $test_case;
1152 my $test_num = 0;
1153
1154 $test_case = __read_config $config, \$test_num;
1155
1156 # make sure we have all mandatory configs
1157 get_mandatory_configs;
1158
1159 # was a test specified?
1160 if (!$test_case) {
1161 print "No test case specified.\n";
1162 get_test_case;
1163 }
1164
1165 # set any defaults
1166
1167 foreach my $default (keys %default) {
1168 if (!defined($opt{$default})) {
1169 $opt{$default} = $default{$default};
1170 }
1171 }
1172
1173 if ($opt{"IGNORE_UNUSED"} == 1) {
1174 return;
1175 }
1176
1177 my %not_used;
1178
1179 # check if there are any stragglers (typos?)
1180 foreach my $option (keys %opt) {
1181 my $op = $option;
1182 # remove per test labels.
1183 $op =~ s/\[.*\]//;
1184 if (!exists($option_map{$op}) &&
1185 !exists($default{$op}) &&
1186 !exists($used_options{$op})) {
1187 $not_used{$op} = 1;
1188 }
1189 }
1190
1191 if (%not_used) {
1192 my $s = "s are";
1193 $s = " is" if (keys %not_used == 1);
1194 print "The following option$s not used; could be a typo:\n";
1195 foreach my $option (keys %not_used) {
1196 print "$option\n";
1197 }
1198 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1199 if (!read_yn "Do you want to continue?") {
1200 exit -1;
1201 }
1202 }
1203}
1204
1205sub __eval_option {
1206 my ($name, $option, $i) = @_;
1207
1208 # Add space to evaluate the character before $
1209 $option = " $option";
1210 my $retval = "";
1211 my $repeated = 0;
1212 my $parent = 0;
1213
1214 foreach my $test (keys %repeat_tests) {
1215 if ($i >= $test &&
1216 $i < $test + $repeat_tests{$test}) {
1217
1218 $repeated = 1;
1219 $parent = $test;
1220 last;
1221 }
1222 }
1223
1224 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1225 my $start = $1;
1226 my $var = $2;
1227 my $end = $3;
1228
1229 # Append beginning of line
1230 $retval = "$retval$start";
1231
1232 # If the iteration option OPT[$i] exists, then use that.
1233 # otherwise see if the default OPT (without [$i]) exists.
1234
1235 my $o = "$var\[$i\]";
1236 my $parento = "$var\[$parent\]";
1237
1238 # If a variable contains itself, use the default var
1239 if (($var eq $name) && defined($opt{$var})) {
1240 $o = $opt{$var};
1241 $retval = "$retval$o";
1242 } elsif (defined($opt{$o})) {
1243 $o = $opt{$o};
1244 $retval = "$retval$o";
1245 } elsif ($repeated && defined($opt{$parento})) {
1246 $o = $opt{$parento};
1247 $retval = "$retval$o";
1248 } elsif (defined($opt{$var})) {
1249 $o = $opt{$var};
1250 $retval = "$retval$o";
1251 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1252 # special option KERNEL_VERSION uses kernel version
1253 get_version();
1254 $retval = "$retval$version";
1255 } else {
1256 $retval = "$retval\$\{$var\}";
1257 }
1258
1259 $option = $end;
1260 }
1261
1262 $retval = "$retval$option";
1263
1264 $retval =~ s/^ //;
1265
1266 return $retval;
1267}
1268
1269sub process_evals {
1270 my ($name, $option, $i) = @_;
1271
1272 my $option_name = "$name\[$i\]";
1273 my $ev;
1274
1275 my $old_option = $option;
1276
1277 if (defined($evals{$option_name})) {
1278 $ev = $evals{$option_name};
1279 } elsif (defined($evals{$name})) {
1280 $ev = $evals{$name};
1281 } else {
1282 return $option;
1283 }
1284
1285 for my $e (@{$ev}) {
1286 eval "\$option =~ $e";
1287 }
1288
1289 if ($option ne $old_option) {
1290 doprint("$name changed from '$old_option' to '$option'\n");
1291 }
1292
1293 return $option;
1294}
1295
1296sub eval_option {
1297 my ($name, $option, $i) = @_;
1298
1299 my $prev = "";
1300
1301 # Since an option can evaluate to another option,
1302 # keep iterating until we do not evaluate any more
1303 # options.
1304 my $r = 0;
1305 while ($prev ne $option) {
1306 # Check for recursive evaluations.
1307 # 100 deep should be more than enough.
1308 if ($r++ > 100) {
1309 die "Over 100 evaluations accurred with $option\n" .
1310 "Check for recursive variables\n";
1311 }
1312 $prev = $option;
1313 $option = __eval_option($name, $option, $i);
1314 }
1315
1316 $option = process_evals($name, $option, $i);
1317
1318 return $option;
1319}
1320
1321sub run_command;
1322sub start_monitor;
1323sub end_monitor;
1324sub wait_for_monitor;
1325
1326sub reboot {
1327 my ($time) = @_;
1328
1329 # Make sure everything has been written to disk
1330 run_ssh("sync");
1331
1332 if (defined($time)) {
1333 start_monitor;
1334 # flush out current monitor
1335 # May contain the reboot success line
1336 wait_for_monitor 1;
1337 }
1338
1339 # try to reboot normally
1340 if (run_command $reboot) {
1341 if (defined($powercycle_after_reboot)) {
1342 sleep $powercycle_after_reboot;
1343 run_command "$power_cycle";
1344 }
1345 } else {
1346 # nope? power cycle it.
1347 run_command "$power_cycle";
1348 }
1349
1350 if (defined($time)) {
1351
1352 # We only want to get to the new kernel, don't fail
1353 # if we stumble over a call trace.
1354 my $save_ignore_errors = $ignore_errors;
1355 $ignore_errors = 1;
1356
1357 # Look for the good kernel to boot
1358 if (wait_for_monitor($time, "Linux version")) {
1359 # reboot got stuck?
1360 doprint "Reboot did not finish. Forcing power cycle\n";
1361 run_command "$power_cycle";
1362 }
1363
1364 $ignore_errors = $save_ignore_errors;
1365
1366 # Still need to wait for the reboot to finish
1367 wait_for_monitor($time, $reboot_success_line);
1368
1369 end_monitor;
1370 }
1371}
1372
1373sub reboot_to_good {
1374 my ($time) = @_;
1375
1376 if (defined($switch_to_good)) {
1377 run_command $switch_to_good;
1378 }
1379
1380 reboot $time;
1381}
1382
1383sub do_not_reboot {
1384 my $i = $iteration;
1385
1386 return $test_type eq "build" || $no_reboot ||
1387 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1388 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
1389}
1390
1391sub dodie {
1392 doprint "CRITICAL FAILURE... ", @_, "\n";
1393
1394 my $i = $iteration;
1395
1396 if ($reboot_on_error && !do_not_reboot) {
1397
1398 doprint "REBOOTING\n";
1399 reboot_to_good;
1400
1401 } elsif ($poweroff_on_error && defined($power_off)) {
1402 doprint "POWERING OFF\n";
1403 `$power_off`;
1404 }
1405
1406 if (defined($opt{"LOG_FILE"})) {
1407 print " See $opt{LOG_FILE} for more info.\n";
1408 }
1409
1410 if ($monitor_cnt) {
1411 # restore terminal settings
1412 system("stty $stty_orig");
1413 }
1414
1415 die @_, "\n";
1416}
1417
1418sub create_pty {
1419 my ($ptm, $pts) = @_;
1420 my $tmp;
1421 my $TIOCSPTLCK = 0x40045431;
1422 my $TIOCGPTN = 0x80045430;
1423
1424 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1425 dodie "Cant open /dev/ptmx";
1426
1427 # unlockpt()
1428 $tmp = pack("i", 0);
1429 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1430 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1431
1432 # ptsname()
1433 ioctl($ptm, $TIOCGPTN, $tmp) or
1434 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1435 $tmp = unpack("i", $tmp);
1436
1437 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1438 dodie "Can't open /dev/pts/$tmp";
1439}
1440
1441sub exec_console {
1442 my ($ptm, $pts) = @_;
1443
1444 close($ptm);
1445
1446 close(\*STDIN);
1447 close(\*STDOUT);
1448 close(\*STDERR);
1449
1450 open(\*STDIN, '<&', $pts);
1451 open(\*STDOUT, '>&', $pts);
1452 open(\*STDERR, '>&', $pts);
1453
1454 close($pts);
1455
1456 exec $console or
1457 die "Can't open console $console";
1458}
1459
1460sub open_console {
1461 my ($ptm) = @_;
1462 my $pts = \*PTSFD;
1463 my $pid;
1464
1465 # save terminal settings
1466 $stty_orig = `stty -g`;
1467
1468 # place terminal in cbreak mode so that stdin can be read one character at
1469 # a time without having to wait for a newline
1470 system("stty -icanon -echo -icrnl");
1471
1472 create_pty($ptm, $pts);
1473
1474 $pid = fork;
1475
1476 if (!$pid) {
1477 # child
1478 exec_console($ptm, $pts)
1479 }
1480
1481 # parent
1482 close($pts);
1483
1484 return $pid;
1485
1486 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1487}
1488
1489sub close_console {
1490 my ($fp, $pid) = @_;
1491
1492 doprint "kill child process $pid\n";
1493 kill $close_console_signal, $pid;
1494
1495 print "closing!\n";
1496 close($fp);
1497
1498 # restore terminal settings
1499 system("stty $stty_orig");
1500}
1501
1502sub start_monitor {
1503 if ($monitor_cnt++) {
1504 return;
1505 }
1506 $monitor_fp = \*MONFD;
1507 $monitor_pid = open_console $monitor_fp;
1508
1509 return;
1510
1511 open(MONFD, "Stop perl from warning about single use of MONFD");
1512}
1513
1514sub end_monitor {
1515 return if (!defined $console);
1516 if (--$monitor_cnt) {
1517 return;
1518 }
1519 close_console($monitor_fp, $monitor_pid);
1520}
1521
1522sub wait_for_monitor {
1523 my ($time, $stop) = @_;
1524 my $full_line = "";
1525 my $line;
1526 my $booted = 0;
1527 my $start_time = time;
1528 my $skip_call_trace = 0;
1529 my $bug = 0;
1530 my $bug_ignored = 0;
1531 my $now;
1532
1533 doprint "** Wait for monitor to settle down **\n";
1534
1535 # read the monitor and wait for the system to calm down
1536 while (!$booted) {
1537 $line = wait_for_input($monitor_fp, $time);
1538 last if (!defined($line));
1539 print "$line";
1540 $full_line .= $line;
1541
1542 if (defined($stop) && $full_line =~ /$stop/) {
1543 doprint "wait for monitor detected $stop\n";
1544 $booted = 1;
1545 }
1546
1547 if ($full_line =~ /\[ backtrace testing \]/) {
1548 $skip_call_trace = 1;
1549 }
1550
1551 if ($full_line =~ /call trace:/i) {
1552 if (!$bug && !$skip_call_trace) {
1553 if ($ignore_errors) {
1554 $bug_ignored = 1;
1555 } else {
1556 $bug = 1;
1557 }
1558 }
1559 }
1560
1561 if ($full_line =~ /\[ end of backtrace testing \]/) {
1562 $skip_call_trace = 0;
1563 }
1564
1565 if ($full_line =~ /Kernel panic -/) {
1566 $bug = 1;
1567 }
1568
1569 if ($line =~ /\n/) {
1570 $full_line = "";
1571 }
1572 $now = time;
1573 if ($now - $start_time >= $max_monitor_wait) {
1574 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1575 return 1;
1576 }
1577 }
1578 print "** Monitor flushed **\n";
1579
1580 # if stop is defined but wasn't hit, return error
1581 # used by reboot (which wants to see a reboot)
1582 if (defined($stop) && !$booted) {
1583 $bug = 1;
1584 }
1585 return $bug;
1586}
1587
1588sub save_logs {
1589 my ($result, $basedir) = @_;
1590 my @t = localtime;
1591 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1592 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1593
1594 my $type = $build_type;
1595 if ($type =~ /useconfig/) {
1596 $type = "useconfig";
1597 }
1598
1599 my $dir = "$machine-$test_type-$type-$result-$date";
1600
1601 $dir = "$basedir/$dir";
1602
1603 if (!-d $dir) {
1604 mkpath($dir) or
1605 die "can't create $dir";
1606 }
1607
1608 my %files = (
1609 "config" => $output_config,
1610 "buildlog" => $buildlog,
1611 "dmesg" => $dmesg,
1612 "testlog" => $testlog,
1613 );
1614
1615 while (my ($name, $source) = each(%files)) {
1616 if (-f "$source") {
1617 cp "$source", "$dir/$name" or
1618 die "failed to copy $source";
1619 }
1620 }
1621
1622 doprint "*** Saved info to $dir ***\n";
1623}
1624
1625sub fail {
1626
1627 if (defined($post_test)) {
1628 run_command $post_test;
1629 }
1630
1631 if ($die_on_failure) {
1632 dodie @_;
1633 }
1634
1635 doprint "FAILED\n";
1636
1637 my $i = $iteration;
1638
1639 # no need to reboot for just building.
1640 if (!do_not_reboot) {
1641 doprint "REBOOTING\n";
1642 reboot_to_good $sleep_time;
1643 }
1644
1645 my $name = "";
1646
1647 if (defined($test_name)) {
1648 $name = " ($test_name)";
1649 }
1650
1651 print_times;
1652
1653 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1654 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1655 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1656 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1657 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1658
1659 if (defined($store_failures)) {
1660 save_logs "fail", $store_failures;
1661 }
1662
1663 return 1;
1664}
1665
1666sub run_command {
1667 my ($command, $redirect) = @_;
1668 my $start_time;
1669 my $end_time;
1670 my $dolog = 0;
1671 my $dord = 0;
1672 my $pid;
1673
1674 $start_time = time;
1675
1676 $command =~ s/\$SSH_USER/$ssh_user/g;
1677 $command =~ s/\$MACHINE/$machine/g;
1678
1679 doprint("$command ... ");
1680
1681 $pid = open(CMD, "$command 2>&1 |") or
1682 (fail "unable to exec $command" and return 0);
1683
1684 if (defined($opt{"LOG_FILE"})) {
1685 open(LOG, ">>$opt{LOG_FILE}") or
1686 dodie "failed to write to log";
1687 $dolog = 1;
1688 }
1689
1690 if (defined($redirect)) {
1691 open (RD, ">$redirect") or
1692 dodie "failed to write to redirect $redirect";
1693 $dord = 1;
1694 }
1695
1696 while (<CMD>) {
1697 print LOG if ($dolog);
1698 print RD if ($dord);
1699 }
1700
1701 waitpid($pid, 0);
1702 my $failed = $?;
1703
1704 close(CMD);
1705 close(LOG) if ($dolog);
1706 close(RD) if ($dord);
1707
1708 $end_time = time;
1709 my $delta = $end_time - $start_time;
1710
1711 if ($delta == 1) {
1712 doprint "[1 second] ";
1713 } else {
1714 doprint "[$delta seconds] ";
1715 }
1716
1717 if ($failed) {
1718 doprint "FAILED!\n";
1719 } else {
1720 doprint "SUCCESS\n";
1721 }
1722
1723 return !$failed;
1724}
1725
1726sub run_ssh {
1727 my ($cmd) = @_;
1728 my $cp_exec = $ssh_exec;
1729
1730 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1731 return run_command "$cp_exec";
1732}
1733
1734sub run_scp {
1735 my ($src, $dst, $cp_scp) = @_;
1736
1737 $cp_scp =~ s/\$SRC_FILE/$src/g;
1738 $cp_scp =~ s/\$DST_FILE/$dst/g;
1739
1740 return run_command "$cp_scp";
1741}
1742
1743sub run_scp_install {
1744 my ($src, $dst) = @_;
1745
1746 my $cp_scp = $scp_to_target_install;
1747
1748 return run_scp($src, $dst, $cp_scp);
1749}
1750
1751sub run_scp_mod {
1752 my ($src, $dst) = @_;
1753
1754 my $cp_scp = $scp_to_target;
1755
1756 return run_scp($src, $dst, $cp_scp);
1757}
1758
1759sub get_grub2_index {
1760
1761 return if (defined($grub_number) && defined($last_grub_menu) &&
1762 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1763 $last_machine eq $machine);
1764
1765 doprint "Find grub2 menu ... ";
1766 $grub_number = -1;
1767
1768 my $ssh_grub = $ssh_exec;
1769 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1770
1771 open(IN, "$ssh_grub |")
1772 or die "unable to get $grub_file";
1773
1774 my $found = 0;
1775
1776 while (<IN>) {
1777 if (/^menuentry.*$grub_menu/) {
1778 $grub_number++;
1779 $found = 1;
1780 last;
1781 } elsif (/^menuentry\s/) {
1782 $grub_number++;
1783 }
1784 }
1785 close(IN);
1786
1787 die "Could not find '$grub_menu' in $grub_file on $machine"
1788 if (!$found);
1789 doprint "$grub_number\n";
1790 $last_grub_menu = $grub_menu;
1791 $last_machine = $machine;
1792}
1793
1794sub get_grub_index {
1795
1796 if ($reboot_type eq "grub2") {
1797 get_grub2_index;
1798 return;
1799 }
1800
1801 if ($reboot_type ne "grub") {
1802 return;
1803 }
1804 return if (defined($grub_number) && defined($last_grub_menu) &&
1805 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1806 $last_machine eq $machine);
1807
1808 doprint "Find grub menu ... ";
1809 $grub_number = -1;
1810
1811 my $ssh_grub = $ssh_exec;
1812 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1813
1814 open(IN, "$ssh_grub |")
1815 or die "unable to get menu.lst";
1816
1817 my $found = 0;
1818
1819 while (<IN>) {
1820 if (/^\s*title\s+$grub_menu\s*$/) {
1821 $grub_number++;
1822 $found = 1;
1823 last;
1824 } elsif (/^\s*title\s/) {
1825 $grub_number++;
1826 }
1827 }
1828 close(IN);
1829
1830 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1831 if (!$found);
1832 doprint "$grub_number\n";
1833 $last_grub_menu = $grub_menu;
1834 $last_machine = $machine;
1835}
1836
1837sub wait_for_input
1838{
1839 my ($fp, $time) = @_;
1840 my $rin;
1841 my $rout;
1842 my $nr;
1843 my $buf;
1844 my $line;
1845 my $ch;
1846
1847 if (!defined($time)) {
1848 $time = $timeout;
1849 }
1850
1851 $rin = '';
1852 vec($rin, fileno($fp), 1) = 1;
1853 vec($rin, fileno(\*STDIN), 1) = 1;
1854
1855 while (1) {
1856 $nr = select($rout=$rin, undef, undef, $time);
1857
1858 if ($nr <= 0) {
1859 return undef;
1860 }
1861
1862 # copy data from stdin to the console
1863 if (vec($rout, fileno(\*STDIN), 1) == 1) {
1864 sysread(\*STDIN, $buf, 1000);
1865 syswrite($fp, $buf, 1000);
1866 next;
1867 }
1868
1869 $line = "";
1870
1871 # try to read one char at a time
1872 while (sysread $fp, $ch, 1) {
1873 $line .= $ch;
1874 last if ($ch eq "\n");
1875 }
1876
1877 if (!length($line)) {
1878 return undef;
1879 }
1880
1881 return $line;
1882 }
1883}
1884
1885sub reboot_to {
1886 if (defined($switch_to_test)) {
1887 run_command $switch_to_test;
1888 }
1889
1890 if ($reboot_type eq "grub") {
1891 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1892 } elsif ($reboot_type eq "grub2") {
1893 run_ssh "$grub_reboot $grub_number";
1894 } elsif ($reboot_type eq "syslinux") {
1895 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
1896 } elsif (defined $reboot_script) {
1897 run_command "$reboot_script";
1898 }
1899 reboot;
1900}
1901
1902sub get_sha1 {
1903 my ($commit) = @_;
1904
1905 doprint "git rev-list --max-count=1 $commit ... ";
1906 my $sha1 = `git rev-list --max-count=1 $commit`;
1907 my $ret = $?;
1908
1909 logit $sha1;
1910
1911 if ($ret) {
1912 doprint "FAILED\n";
1913 dodie "Failed to get git $commit";
1914 }
1915
1916 print "SUCCESS\n";
1917
1918 chomp $sha1;
1919
1920 return $sha1;
1921}
1922
1923sub monitor {
1924 my $booted = 0;
1925 my $bug = 0;
1926 my $bug_ignored = 0;
1927 my $skip_call_trace = 0;
1928 my $loops;
1929
1930 my $start_time = time;
1931
1932 wait_for_monitor 5;
1933
1934 my $line;
1935 my $full_line = "";
1936
1937 open(DMESG, "> $dmesg") or
1938 die "unable to write to $dmesg";
1939
1940 reboot_to;
1941
1942 my $success_start;
1943 my $failure_start;
1944 my $monitor_start = time;
1945 my $done = 0;
1946 my $version_found = 0;
1947
1948 while (!$done) {
1949
1950 if ($bug && defined($stop_after_failure) &&
1951 $stop_after_failure >= 0) {
1952 my $time = $stop_after_failure - (time - $failure_start);
1953 $line = wait_for_input($monitor_fp, $time);
1954 if (!defined($line)) {
1955 doprint "bug timed out after $booted_timeout seconds\n";
1956 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1957 last;
1958 }
1959 } elsif ($booted) {
1960 $line = wait_for_input($monitor_fp, $booted_timeout);
1961 if (!defined($line)) {
1962 my $s = $booted_timeout == 1 ? "" : "s";
1963 doprint "Successful boot found: break after $booted_timeout second$s\n";
1964 last;
1965 }
1966 } else {
1967 $line = wait_for_input($monitor_fp);
1968 if (!defined($line)) {
1969 my $s = $timeout == 1 ? "" : "s";
1970 doprint "Timed out after $timeout second$s\n";
1971 last;
1972 }
1973 }
1974
1975 doprint $line;
1976 print DMESG $line;
1977
1978 # we are not guaranteed to get a full line
1979 $full_line .= $line;
1980
1981 if ($full_line =~ /$success_line/) {
1982 $booted = 1;
1983 $success_start = time;
1984 }
1985
1986 if ($booted && defined($stop_after_success) &&
1987 $stop_after_success >= 0) {
1988 my $now = time;
1989 if ($now - $success_start >= $stop_after_success) {
1990 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1991 last;
1992 }
1993 }
1994
1995 if ($full_line =~ /\[ backtrace testing \]/) {
1996 $skip_call_trace = 1;
1997 }
1998
1999 if ($full_line =~ /call trace:/i) {
2000 if (!$bug && !$skip_call_trace) {
2001 if ($ignore_errors) {
2002 $bug_ignored = 1;
2003 } else {
2004 $bug = 1;
2005 $failure_start = time;
2006 }
2007 }
2008 }
2009
2010 if ($bug && defined($stop_after_failure) &&
2011 $stop_after_failure >= 0) {
2012 my $now = time;
2013 if ($now - $failure_start >= $stop_after_failure) {
2014 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2015 last;
2016 }
2017 }
2018
2019 if ($full_line =~ /\[ end of backtrace testing \]/) {
2020 $skip_call_trace = 0;
2021 }
2022
2023 if ($full_line =~ /Kernel panic -/) {
2024 $failure_start = time;
2025 $bug = 1;
2026 }
2027
2028 # Detect triple faults by testing the banner
2029 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2030 if ($1 eq $version) {
2031 $version_found = 1;
2032 } elsif ($version_found && $detect_triplefault) {
2033 # We already booted into the kernel we are testing,
2034 # but now we booted into another kernel?
2035 # Consider this a triple fault.
2036 doprint "Already booted in Linux kernel $version, but now\n";
2037 doprint "we booted into Linux kernel $1.\n";
2038 doprint "Assuming that this is a triple fault.\n";
2039 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2040 last;
2041 }
2042 }
2043
2044 if ($line =~ /\n/) {
2045 $full_line = "";
2046 }
2047
2048 if ($stop_test_after > 0 && !$booted && !$bug) {
2049 if (time - $monitor_start > $stop_test_after) {
2050 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2051 $done = 1;
2052 }
2053 }
2054 }
2055
2056 my $end_time = time;
2057 $reboot_time = $end_time - $start_time;
2058
2059 close(DMESG);
2060
2061 if ($bug) {
2062 return 0 if ($in_bisect);
2063 fail "failed - got a bug report" and return 0;
2064 }
2065
2066 if (!$booted) {
2067 return 0 if ($in_bisect);
2068 fail "failed - never got a boot prompt." and return 0;
2069 }
2070
2071 if ($bug_ignored) {
2072 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2073 }
2074
2075 return 1;
2076}
2077
2078sub eval_kernel_version {
2079 my ($option) = @_;
2080
2081 $option =~ s/\$KERNEL_VERSION/$version/g;
2082
2083 return $option;
2084}
2085
2086sub do_post_install {
2087
2088 return if (!defined($post_install));
2089
2090 my $cp_post_install = eval_kernel_version $post_install;
2091 run_command "$cp_post_install" or
2092 dodie "Failed to run post install";
2093}
2094
2095# Sometimes the reboot fails, and will hang. We try to ssh to the box
2096# and if we fail, we force another reboot, that should powercycle it.
2097sub test_booted {
2098 if (!run_ssh "echo testing connection") {
2099 reboot $sleep_time;
2100 }
2101}
2102
2103sub install {
2104
2105 return if ($no_install);
2106
2107 my $start_time = time;
2108
2109 if (defined($pre_install)) {
2110 my $cp_pre_install = eval_kernel_version $pre_install;
2111 run_command "$cp_pre_install" or
2112 dodie "Failed to run pre install";
2113 }
2114
2115 my $cp_target = eval_kernel_version $target_image;
2116
2117 test_booted;
2118
2119 run_scp_install "$outputdir/$build_target", "$cp_target" or
2120 dodie "failed to copy image";
2121
2122 my $install_mods = 0;
2123
2124 # should we process modules?
2125 $install_mods = 0;
2126 open(IN, "$output_config") or dodie("Can't read config file");
2127 while (<IN>) {
2128 if (/CONFIG_MODULES(=y)?/) {
2129 if (defined($1)) {
2130 $install_mods = 1;
2131 last;
2132 }
2133 }
2134 }
2135 close(IN);
2136
2137 if (!$install_mods) {
2138 do_post_install;
2139 doprint "No modules needed\n";
2140 my $end_time = time;
2141 $install_time = $end_time - $start_time;
2142 return;
2143 }
2144
2145 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2146 dodie "Failed to install modules";
2147
2148 my $modlib = "/lib/modules/$version";
2149 my $modtar = "ktest-mods.tar.bz2";
2150
2151 run_ssh "rm -rf $modlib" or
2152 dodie "failed to remove old mods: $modlib";
2153
2154 # would be nice if scp -r did not follow symbolic links
2155 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2156 dodie "making tarball";
2157
2158 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2159 dodie "failed to copy modules";
2160
2161 unlink "$tmpdir/$modtar";
2162
2163 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2164 dodie "failed to tar modules";
2165
2166 run_ssh "rm -f /tmp/$modtar";
2167
2168 do_post_install;
2169
2170 my $end_time = time;
2171 $install_time = $end_time - $start_time;
2172}
2173
2174sub get_version {
2175 # get the release name
2176 return if ($have_version);
2177 doprint "$make kernelrelease ... ";
2178 $version = `$make -s kernelrelease | tail -1`;
2179 chomp($version);
2180 doprint "$version\n";
2181 $have_version = 1;
2182}
2183
2184sub start_monitor_and_install {
2185 # Make sure the stable kernel has finished booting
2186
2187 # Install bisects, don't need console
2188 if (defined $console) {
2189 start_monitor;
2190 wait_for_monitor 5;
2191 end_monitor;
2192 }
2193
2194 get_grub_index;
2195 get_version;
2196 install;
2197
2198 start_monitor if (defined $console);
2199 return monitor;
2200}
2201
2202my $check_build_re = ".*:.*(warning|error|Error):.*";
2203my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2204
2205sub process_warning_line {
2206 my ($line) = @_;
2207
2208 chomp $line;
2209
2210 # for distcc heterogeneous systems, some compilers
2211 # do things differently causing warning lines
2212 # to be slightly different. This makes an attempt
2213 # to fixe those issues.
2214
2215 # chop off the index into the line
2216 # using distcc, some compilers give different indexes
2217 # depending on white space
2218 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2219
2220 # Some compilers use UTF-8 extended for quotes and some don't.
2221 $line =~ s/$utf8_quote/'/g;
2222
2223 return $line;
2224}
2225
2226# Read buildlog and check against warnings file for any
2227# new warnings.
2228#
2229# Returns 1 if OK
2230# 0 otherwise
2231sub check_buildlog {
2232 return 1 if (!defined $warnings_file);
2233
2234 my %warnings_list;
2235
2236 # Failed builds should not reboot the target
2237 my $save_no_reboot = $no_reboot;
2238 $no_reboot = 1;
2239
2240 if (-f $warnings_file) {
2241 open(IN, $warnings_file) or
2242 dodie "Error opening $warnings_file";
2243
2244 while (<IN>) {
2245 if (/$check_build_re/) {
2246 my $warning = process_warning_line $_;
2247
2248 $warnings_list{$warning} = 1;
2249 }
2250 }
2251 close(IN);
2252 }
2253
2254 # If warnings file didn't exist, and WARNINGS_FILE exist,
2255 # then we fail on any warning!
2256
2257 open(IN, $buildlog) or dodie "Can't open $buildlog";
2258 while (<IN>) {
2259 if (/$check_build_re/) {
2260 my $warning = process_warning_line $_;
2261
2262 if (!defined $warnings_list{$warning}) {
2263 fail "New warning found (not in $warnings_file)\n$_\n";
2264 $no_reboot = $save_no_reboot;
2265 return 0;
2266 }
2267 }
2268 }
2269 $no_reboot = $save_no_reboot;
2270 close(IN);
2271}
2272
2273sub check_patch_buildlog {
2274 my ($patch) = @_;
2275
2276 my @files = `git show $patch | diffstat -l`;
2277
2278 foreach my $file (@files) {
2279 chomp $file;
2280 }
2281
2282 open(IN, "git show $patch |") or
2283 dodie "failed to show $patch";
2284 while (<IN>) {
2285 if (m,^--- a/(.*),) {
2286 chomp $1;
2287 $files[$#files] = $1;
2288 }
2289 }
2290 close(IN);
2291
2292 open(IN, $buildlog) or dodie "Can't open $buildlog";
2293 while (<IN>) {
2294 if (/^\s*(.*?):.*(warning|error)/) {
2295 my $err = $1;
2296 foreach my $file (@files) {
2297 my $fullpath = "$builddir/$file";
2298 if ($file eq $err || $fullpath eq $err) {
2299 fail "$file built with warnings" and return 0;
2300 }
2301 }
2302 }
2303 }
2304 close(IN);
2305
2306 return 1;
2307}
2308
2309sub apply_min_config {
2310 my $outconfig = "$output_config.new";
2311
2312 # Read the config file and remove anything that
2313 # is in the force_config hash (from minconfig and others)
2314 # then add the force config back.
2315
2316 doprint "Applying minimum configurations into $output_config.new\n";
2317
2318 open (OUT, ">$outconfig") or
2319 dodie "Can't create $outconfig";
2320
2321 if (-f $output_config) {
2322 open (IN, $output_config) or
2323 dodie "Failed to open $output_config";
2324 while (<IN>) {
2325 if (/^(# )?(CONFIG_[^\s=]*)/) {
2326 next if (defined($force_config{$2}));
2327 }
2328 print OUT;
2329 }
2330 close IN;
2331 }
2332 foreach my $config (keys %force_config) {
2333 print OUT "$force_config{$config}\n";
2334 }
2335 close OUT;
2336
2337 run_command "mv $outconfig $output_config";
2338}
2339
2340sub make_oldconfig {
2341
2342 my @force_list = keys %force_config;
2343
2344 if ($#force_list >= 0) {
2345 apply_min_config;
2346 }
2347
2348 if (!run_command "$make olddefconfig") {
2349 # Perhaps olddefconfig doesn't exist in this version of the kernel
2350 # try oldnoconfig
2351 doprint "olddefconfig failed, trying make oldnoconfig\n";
2352 if (!run_command "$make oldnoconfig") {
2353 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2354 # try a yes '' | oldconfig
2355 run_command "yes '' | $make oldconfig" or
2356 dodie "failed make config oldconfig";
2357 }
2358 }
2359}
2360
2361# read a config file and use this to force new configs.
2362sub load_force_config {
2363 my ($config) = @_;
2364
2365 doprint "Loading force configs from $config\n";
2366 open(IN, $config) or
2367 dodie "failed to read $config";
2368 while (<IN>) {
2369 chomp;
2370 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2371 $force_config{$1} = $_;
2372 } elsif (/^# (CONFIG_\S*) is not set/) {
2373 $force_config{$1} = $_;
2374 }
2375 }
2376 close IN;
2377}
2378
2379sub build {
2380 my ($type) = @_;
2381
2382 unlink $buildlog;
2383
2384 my $start_time = time;
2385
2386 # Failed builds should not reboot the target
2387 my $save_no_reboot = $no_reboot;
2388 $no_reboot = 1;
2389
2390 # Calculate a new version from here.
2391 $have_version = 0;
2392
2393 if (defined($pre_build)) {
2394 my $ret = run_command $pre_build;
2395 if (!$ret && defined($pre_build_die) &&
2396 $pre_build_die) {
2397 dodie "failed to pre_build\n";
2398 }
2399 }
2400
2401 if ($type =~ /^useconfig:(.*)/) {
2402 run_command "cp $1 $output_config" or
2403 dodie "could not copy $1 to .config";
2404
2405 $type = "oldconfig";
2406 }
2407
2408 # old config can ask questions
2409 if ($type eq "oldconfig") {
2410 $type = "olddefconfig";
2411
2412 # allow for empty configs
2413 run_command "touch $output_config";
2414
2415 if (!$noclean) {
2416 run_command "mv $output_config $outputdir/config_temp" or
2417 dodie "moving .config";
2418
2419 run_command "$make mrproper" or dodie "make mrproper";
2420
2421 run_command "mv $outputdir/config_temp $output_config" or
2422 dodie "moving config_temp";
2423 }
2424
2425 } elsif (!$noclean) {
2426 unlink "$output_config";
2427 run_command "$make mrproper" or
2428 dodie "make mrproper";
2429 }
2430
2431 # add something to distinguish this build
2432 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2433 print OUT "$localversion\n";
2434 close(OUT);
2435
2436 if (defined($minconfig)) {
2437 load_force_config($minconfig);
2438 }
2439
2440 if ($type ne "olddefconfig") {
2441 run_command "$make $type" or
2442 dodie "failed make config";
2443 }
2444 # Run old config regardless, to enforce min configurations
2445 make_oldconfig;
2446
2447 my $build_ret = run_command "$make $build_options", $buildlog;
2448
2449 if (defined($post_build)) {
2450 # Because a post build may change the kernel version
2451 # do it now.
2452 get_version;
2453 my $ret = run_command $post_build;
2454 if (!$ret && defined($post_build_die) &&
2455 $post_build_die) {
2456 dodie "failed to post_build\n";
2457 }
2458 }
2459
2460 if (!$build_ret) {
2461 # bisect may need this to pass
2462 if ($in_bisect) {
2463 $no_reboot = $save_no_reboot;
2464 return 0;
2465 }
2466 fail "failed build" and return 0;
2467 }
2468
2469 $no_reboot = $save_no_reboot;
2470
2471 my $end_time = time;
2472 $build_time = $end_time - $start_time;
2473
2474 return 1;
2475}
2476
2477sub halt {
2478 if (!run_ssh "halt" or defined($power_off)) {
2479 if (defined($poweroff_after_halt)) {
2480 sleep $poweroff_after_halt;
2481 run_command "$power_off";
2482 }
2483 } else {
2484 # nope? the zap it!
2485 run_command "$power_off";
2486 }
2487}
2488
2489sub success {
2490 my ($i) = @_;
2491
2492 if (defined($post_test)) {
2493 run_command $post_test;
2494 }
2495
2496 $successes++;
2497
2498 my $name = "";
2499
2500 if (defined($test_name)) {
2501 $name = " ($test_name)";
2502 }
2503
2504 print_times;
2505
2506 doprint "\n\n*******************************************\n";
2507 doprint "*******************************************\n";
2508 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2509 doprint "*******************************************\n";
2510 doprint "*******************************************\n";
2511
2512 if (defined($store_successes)) {
2513 save_logs "success", $store_successes;
2514 }
2515
2516 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2517 doprint "Reboot and wait $sleep_time seconds\n";
2518 reboot_to_good $sleep_time;
2519 }
2520}
2521
2522sub answer_bisect {
2523 for (;;) {
2524 doprint "Pass, fail, or skip? [p/f/s]";
2525 my $ans = <STDIN>;
2526 chomp $ans;
2527 if ($ans eq "p" || $ans eq "P") {
2528 return 1;
2529 } elsif ($ans eq "f" || $ans eq "F") {
2530 return 0;
2531 } elsif ($ans eq "s" || $ans eq "S") {
2532 return -1;
2533 } else {
2534 print "Please answer 'p', 'f', or 's'\n";
2535 }
2536 }
2537}
2538
2539sub child_run_test {
2540 my $failed = 0;
2541
2542 # child should have no power
2543 $reboot_on_error = 0;
2544 $poweroff_on_error = 0;
2545 $die_on_failure = 1;
2546
2547 run_command $run_test, $testlog or $failed = 1;
2548
2549 exit $failed;
2550}
2551
2552my $child_done;
2553
2554sub child_finished {
2555 $child_done = 1;
2556}
2557
2558sub do_run_test {
2559 my $child_pid;
2560 my $child_exit;
2561 my $line;
2562 my $full_line;
2563 my $bug = 0;
2564 my $bug_ignored = 0;
2565
2566 my $start_time = time;
2567
2568 wait_for_monitor 1;
2569
2570 doprint "run test $run_test\n";
2571
2572 $child_done = 0;
2573
2574 $SIG{CHLD} = qw(child_finished);
2575
2576 $child_pid = fork;
2577
2578 child_run_test if (!$child_pid);
2579
2580 $full_line = "";
2581
2582 do {
2583 $line = wait_for_input($monitor_fp, 1);
2584 if (defined($line)) {
2585
2586 # we are not guaranteed to get a full line
2587 $full_line .= $line;
2588 doprint $line;
2589
2590 if ($full_line =~ /call trace:/i) {
2591 if ($ignore_errors) {
2592 $bug_ignored = 1;
2593 } else {
2594 $bug = 1;
2595 }
2596 }
2597
2598 if ($full_line =~ /Kernel panic -/) {
2599 $bug = 1;
2600 }
2601
2602 if ($line =~ /\n/) {
2603 $full_line = "";
2604 }
2605 }
2606 } while (!$child_done && !$bug);
2607
2608 if (!$bug && $bug_ignored) {
2609 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2610 }
2611
2612 if ($bug) {
2613 my $failure_start = time;
2614 my $now;
2615 do {
2616 $line = wait_for_input($monitor_fp, 1);
2617 if (defined($line)) {
2618 doprint $line;
2619 }
2620 $now = time;
2621 if ($now - $failure_start >= $stop_after_failure) {
2622 last;
2623 }
2624 } while (defined($line));
2625
2626 doprint "Detected kernel crash!\n";
2627 # kill the child with extreme prejudice
2628 kill 9, $child_pid;
2629 }
2630
2631 waitpid $child_pid, 0;
2632 $child_exit = $? >> 8;
2633
2634 my $end_time = time;
2635 $test_time = $end_time - $start_time;
2636
2637 if (!$bug && $in_bisect) {
2638 if (defined($bisect_ret_good)) {
2639 if ($child_exit == $bisect_ret_good) {
2640 return 1;
2641 }
2642 }
2643 if (defined($bisect_ret_skip)) {
2644 if ($child_exit == $bisect_ret_skip) {
2645 return -1;
2646 }
2647 }
2648 if (defined($bisect_ret_abort)) {
2649 if ($child_exit == $bisect_ret_abort) {
2650 fail "test abort" and return -2;
2651 }
2652 }
2653 if (defined($bisect_ret_bad)) {
2654 if ($child_exit == $bisect_ret_skip) {
2655 return 0;
2656 }
2657 }
2658 if (defined($bisect_ret_default)) {
2659 if ($bisect_ret_default eq "good") {
2660 return 1;
2661 } elsif ($bisect_ret_default eq "bad") {
2662 return 0;
2663 } elsif ($bisect_ret_default eq "skip") {
2664 return -1;
2665 } elsif ($bisect_ret_default eq "abort") {
2666 return -2;
2667 } else {
2668 fail "unknown default action: $bisect_ret_default"
2669 and return -2;
2670 }
2671 }
2672 }
2673
2674 if ($bug || $child_exit) {
2675 return 0 if $in_bisect;
2676 fail "test failed" and return 0;
2677 }
2678 return 1;
2679}
2680
2681sub run_git_bisect {
2682 my ($command) = @_;
2683
2684 doprint "$command ... ";
2685
2686 my $output = `$command 2>&1`;
2687 my $ret = $?;
2688
2689 logit $output;
2690
2691 if ($ret) {
2692 doprint "FAILED\n";
2693 dodie "Failed to git bisect";
2694 }
2695
2696 doprint "SUCCESS\n";
2697 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2698 doprint "$1 [$2]\n";
2699 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2700 $bisect_bad_commit = $1;
2701 doprint "Found bad commit... $1\n";
2702 return 0;
2703 } else {
2704 # we already logged it, just print it now.
2705 print $output;
2706 }
2707
2708 return 1;
2709}
2710
2711sub bisect_reboot {
2712 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2713 reboot_to_good $bisect_sleep_time;
2714}
2715
2716# returns 1 on success, 0 on failure, -1 on skip
2717sub run_bisect_test {
2718 my ($type, $buildtype) = @_;
2719
2720 my $failed = 0;
2721 my $result;
2722 my $output;
2723 my $ret;
2724
2725 $in_bisect = 1;
2726
2727 build $buildtype or $failed = 1;
2728
2729 if ($type ne "build") {
2730 if ($failed && $bisect_skip) {
2731 $in_bisect = 0;
2732 return -1;
2733 }
2734 dodie "Failed on build" if $failed;
2735
2736 # Now boot the box
2737 start_monitor_and_install or $failed = 1;
2738
2739 if ($type ne "boot") {
2740 if ($failed && $bisect_skip) {
2741 end_monitor;
2742 bisect_reboot;
2743 $in_bisect = 0;
2744 return -1;
2745 }
2746 dodie "Failed on boot" if $failed;
2747
2748 do_run_test or $failed = 1;
2749 }
2750 end_monitor;
2751 }
2752
2753 if ($failed) {
2754 $result = 0;
2755 } else {
2756 $result = 1;
2757 }
2758
2759 # reboot the box to a kernel we can ssh to
2760 if ($type ne "build") {
2761 bisect_reboot;
2762 }
2763 $in_bisect = 0;
2764
2765 return $result;
2766}
2767
2768sub run_bisect {
2769 my ($type) = @_;
2770 my $buildtype = "oldconfig";
2771
2772 # We should have a minconfig to use?
2773 if (defined($minconfig)) {
2774 $buildtype = "useconfig:$minconfig";
2775 }
2776
2777 # If the user sets bisect_tries to less than 1, then no tries
2778 # is a success.
2779 my $ret = 1;
2780
2781 # Still let the user manually decide that though.
2782 if ($bisect_tries < 1 && $bisect_manual) {
2783 $ret = answer_bisect;
2784 }
2785
2786 for (my $i = 0; $i < $bisect_tries; $i++) {
2787 if ($bisect_tries > 1) {
2788 my $t = $i + 1;
2789 doprint("Running bisect trial $t of $bisect_tries:\n");
2790 }
2791 $ret = run_bisect_test $type, $buildtype;
2792
2793 if ($bisect_manual) {
2794 $ret = answer_bisect;
2795 }
2796
2797 last if (!$ret);
2798 }
2799
2800 # Are we looking for where it worked, not failed?
2801 if ($reverse_bisect && $ret >= 0) {
2802 $ret = !$ret;
2803 }
2804
2805 if ($ret > 0) {
2806 return "good";
2807 } elsif ($ret == 0) {
2808 return "bad";
2809 } elsif ($bisect_skip) {
2810 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2811 return "skip";
2812 }
2813}
2814
2815sub update_bisect_replay {
2816 my $tmp_log = "$tmpdir/ktest_bisect_log";
2817 run_command "git bisect log > $tmp_log" or
2818 die "can't create bisect log";
2819 return $tmp_log;
2820}
2821
2822sub bisect {
2823 my ($i) = @_;
2824
2825 my $result;
2826
2827 die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2828 die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2829 die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2830
2831 my $good = $bisect_good;
2832 my $bad = $bisect_bad;
2833 my $type = $bisect_type;
2834 my $start = $bisect_start;
2835 my $replay = $bisect_replay;
2836 my $start_files = $bisect_files;
2837
2838 if (defined($start_files)) {
2839 $start_files = " -- " . $start_files;
2840 } else {
2841 $start_files = "";
2842 }
2843
2844 # convert to true sha1's
2845 $good = get_sha1($good);
2846 $bad = get_sha1($bad);
2847
2848 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2849 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2850 $reverse_bisect = 1;
2851 } else {
2852 $reverse_bisect = 0;
2853 }
2854
2855 # Can't have a test without having a test to run
2856 if ($type eq "test" && !defined($run_test)) {
2857 $type = "boot";
2858 }
2859
2860 # Check if a bisect was running
2861 my $bisect_start_file = "$builddir/.git/BISECT_START";
2862
2863 my $check = $bisect_check;
2864 my $do_check = defined($check) && $check ne "0";
2865
2866 if ( -f $bisect_start_file ) {
2867 print "Bisect in progress found\n";
2868 if ($do_check) {
2869 print " If you say yes, then no checks of good or bad will be done\n";
2870 }
2871 if (defined($replay)) {
2872 print "** BISECT_REPLAY is defined in config file **";
2873 print " Ignore config option and perform new git bisect log?\n";
2874 if (read_ync " (yes, no, or cancel) ") {
2875 $replay = update_bisect_replay;
2876 $do_check = 0;
2877 }
2878 } elsif (read_yn "read git log and continue?") {
2879 $replay = update_bisect_replay;
2880 $do_check = 0;
2881 }
2882 }
2883
2884 if ($do_check) {
2885
2886 # get current HEAD
2887 my $head = get_sha1("HEAD");
2888
2889 if ($check ne "good") {
2890 doprint "TESTING BISECT BAD [$bad]\n";
2891 run_command "git checkout $bad" or
2892 die "Failed to checkout $bad";
2893
2894 $result = run_bisect $type;
2895
2896 if ($result ne "bad") {
2897 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2898 }
2899 }
2900
2901 if ($check ne "bad") {
2902 doprint "TESTING BISECT GOOD [$good]\n";
2903 run_command "git checkout $good" or
2904 die "Failed to checkout $good";
2905
2906 $result = run_bisect $type;
2907
2908 if ($result ne "good") {
2909 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2910 }
2911 }
2912
2913 # checkout where we started
2914 run_command "git checkout $head" or
2915 die "Failed to checkout $head";
2916 }
2917
2918 run_command "git bisect start$start_files" or
2919 dodie "could not start bisect";
2920
2921 if (defined($replay)) {
2922 run_command "git bisect replay $replay" or
2923 dodie "failed to run replay";
2924 } else {
2925
2926 run_command "git bisect good $good" or
2927 dodie "could not set bisect good to $good";
2928
2929 run_git_bisect "git bisect bad $bad" or
2930 dodie "could not set bisect bad to $bad";
2931
2932 }
2933
2934 if (defined($start)) {
2935 run_command "git checkout $start" or
2936 dodie "failed to checkout $start";
2937 }
2938
2939 my $test;
2940 do {
2941 $result = run_bisect $type;
2942 $test = run_git_bisect "git bisect $result";
2943 print_times;
2944 } while ($test);
2945
2946 run_command "git bisect log" or
2947 dodie "could not capture git bisect log";
2948
2949 run_command "git bisect reset" or
2950 dodie "could not reset git bisect";
2951
2952 doprint "Bad commit was [$bisect_bad_commit]\n";
2953
2954 success $i;
2955}
2956
2957# config_ignore holds the configs that were set (or unset) for
2958# a good config and we will ignore these configs for the rest
2959# of a config bisect. These configs stay as they were.
2960my %config_ignore;
2961
2962# config_set holds what all configs were set as.
2963my %config_set;
2964
2965# config_off holds the set of configs that the bad config had disabled.
2966# We need to record them and set them in the .config when running
2967# olddefconfig, because olddefconfig keeps the defaults.
2968my %config_off;
2969
2970# config_off_tmp holds a set of configs to turn off for now
2971my @config_off_tmp;
2972
2973# config_list is the set of configs that are being tested
2974my %config_list;
2975my %null_config;
2976
2977my %dependency;
2978
2979sub assign_configs {
2980 my ($hash, $config) = @_;
2981
2982 doprint "Reading configs from $config\n";
2983
2984 open (IN, $config)
2985 or dodie "Failed to read $config";
2986
2987 while (<IN>) {
2988 chomp;
2989 if (/^((CONFIG\S*)=.*)/) {
2990 ${$hash}{$2} = $1;
2991 } elsif (/^(# (CONFIG\S*) is not set)/) {
2992 ${$hash}{$2} = $1;
2993 }
2994 }
2995
2996 close(IN);
2997}
2998
2999sub process_config_ignore {
3000 my ($config) = @_;
3001
3002 assign_configs \%config_ignore, $config;
3003}
3004
3005sub get_dependencies {
3006 my ($config) = @_;
3007
3008 my $arr = $dependency{$config};
3009 if (!defined($arr)) {
3010 return ();
3011 }
3012
3013 my @deps = @{$arr};
3014
3015 foreach my $dep (@{$arr}) {
3016 print "ADD DEP $dep\n";
3017 @deps = (@deps, get_dependencies $dep);
3018 }
3019
3020 return @deps;
3021}
3022
3023sub save_config {
3024 my ($pc, $file) = @_;
3025
3026 my %configs = %{$pc};
3027
3028 doprint "Saving configs into $file\n";
3029
3030 open(OUT, ">$file") or dodie "Can not write to $file";
3031
3032 foreach my $config (keys %configs) {
3033 print OUT "$configs{$config}\n";
3034 }
3035 close(OUT);
3036}
3037
3038sub create_config {
3039 my ($name, $pc) = @_;
3040
3041 doprint "Creating old config from $name configs\n";
3042
3043 save_config $pc, $output_config;
3044
3045 make_oldconfig;
3046}
3047
3048# compare two config hashes, and return configs with different vals.
3049# It returns B's config values, but you can use A to see what A was.
3050sub diff_config_vals {
3051 my ($pa, $pb) = @_;
3052
3053 # crappy Perl way to pass in hashes.
3054 my %a = %{$pa};
3055 my %b = %{$pb};
3056
3057 my %ret;
3058
3059 foreach my $item (keys %a) {
3060 if (defined($b{$item}) && $b{$item} ne $a{$item}) {
3061 $ret{$item} = $b{$item};
3062 }
3063 }
3064
3065 return %ret;
3066}
3067
3068# compare two config hashes and return the configs in B but not A
3069sub diff_configs {
3070 my ($pa, $pb) = @_;
3071
3072 my %ret;
3073
3074 # crappy Perl way to pass in hashes.
3075 my %a = %{$pa};
3076 my %b = %{$pb};
3077
3078 foreach my $item (keys %b) {
3079 if (!defined($a{$item})) {
3080 $ret{$item} = $b{$item};
3081 }
3082 }
3083
3084 return %ret;
3085}
3086
3087# return if two configs are equal or not
3088# 0 is equal +1 b has something a does not
3089# +1 if a and b have a different item.
3090# -1 if a has something b does not
3091sub compare_configs {
3092 my ($pa, $pb) = @_;
3093
3094 my %ret;
3095
3096 # crappy Perl way to pass in hashes.
3097 my %a = %{$pa};
3098 my %b = %{$pb};
3099
3100 foreach my $item (keys %b) {
3101 if (!defined($a{$item})) {
3102 return 1;
3103 }
3104 if ($a{$item} ne $b{$item}) {
3105 return 1;
3106 }
3107 }
3108
3109 foreach my $item (keys %a) {
3110 if (!defined($b{$item})) {
3111 return -1;
3112 }
3113 }
3114
3115 return 0;
3116}
3117
3118sub run_config_bisect_test {
3119 my ($type) = @_;
3120
3121 my $ret = run_bisect_test $type, "oldconfig";
3122
3123 if ($bisect_manual) {
3124 $ret = answer_bisect;
3125 }
3126
3127 return $ret;
3128}
3129
3130sub process_failed {
3131 my ($config) = @_;
3132
3133 doprint "\n\n***************************************\n";
3134 doprint "Found bad config: $config\n";
3135 doprint "***************************************\n\n";
3136}
3137
3138# used for config bisecting
3139my $good_config;
3140my $bad_config;
3141
3142sub process_new_config {
3143 my ($tc, $nc, $gc, $bc) = @_;
3144
3145 my %tmp_config = %{$tc};
3146 my %good_configs = %{$gc};
3147 my %bad_configs = %{$bc};
3148
3149 my %new_configs;
3150
3151 my $runtest = 1;
3152 my $ret;
3153
3154 create_config "tmp_configs", \%tmp_config;
3155 assign_configs \%new_configs, $output_config;
3156
3157 $ret = compare_configs \%new_configs, \%bad_configs;
3158 if (!$ret) {
3159 doprint "New config equals bad config, try next test\n";
3160 $runtest = 0;
3161 }
3162
3163 if ($runtest) {
3164 $ret = compare_configs \%new_configs, \%good_configs;
3165 if (!$ret) {
3166 doprint "New config equals good config, try next test\n";
3167 $runtest = 0;
3168 }
3169 }
3170
3171 %{$nc} = %new_configs;
3172
3173 return $runtest;
3174}
3175
3176sub run_config_bisect {
3177 my ($pgood, $pbad) = @_;
3178
3179 my $type = $config_bisect_type;
3180
3181 my %good_configs = %{$pgood};
3182 my %bad_configs = %{$pbad};
3183
3184 my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
3185 my %b_configs = diff_configs \%good_configs, \%bad_configs;
3186 my %g_configs = diff_configs \%bad_configs, \%good_configs;
3187
3188 my @diff_arr = keys %diff_configs;
3189 my $len_diff = $#diff_arr + 1;
3190
3191 my @b_arr = keys %b_configs;
3192 my $len_b = $#b_arr + 1;
3193
3194 my @g_arr = keys %g_configs;
3195 my $len_g = $#g_arr + 1;
3196
3197 my $runtest = 1;
3198 my %new_configs;
3199 my $ret;
3200
3201 # First, lets get it down to a single subset.
3202 # Is the problem with a difference in values?
3203 # Is the problem with a missing config?
3204 # Is the problem with a config that breaks things?
3205
3206 # Enable all of one set and see if we get a new bad
3207 # or good config.
3208
3209 # first set the good config to the bad values.
3210
3211 doprint "d=$len_diff g=$len_g b=$len_b\n";
3212
3213 # first lets enable things in bad config that are enabled in good config
3214
3215 if ($len_diff > 0) {
3216 if ($len_b > 0 || $len_g > 0) {
3217 my %tmp_config = %bad_configs;
3218
3219 doprint "Set tmp config to be bad config with good config values\n";
3220 foreach my $item (@diff_arr) {
3221 $tmp_config{$item} = $good_configs{$item};
3222 }
3223
3224 $runtest = process_new_config \%tmp_config, \%new_configs,
3225 \%good_configs, \%bad_configs;
3226 }
3227 }
3228
3229 if (!$runtest && $len_diff > 0) {
3230
3231 if ($len_diff == 1) {
3232 process_failed $diff_arr[0];
3233 return 1;
3234 }
3235 my %tmp_config = %bad_configs;
3236
3237 my $half = int($#diff_arr / 2);
3238 my @tophalf = @diff_arr[0 .. $half];
3239
3240 doprint "Settings bisect with top half:\n";
3241 doprint "Set tmp config to be bad config with some good config values\n";
3242 foreach my $item (@tophalf) {
3243 $tmp_config{$item} = $good_configs{$item};
3244 }
3245
3246 $runtest = process_new_config \%tmp_config, \%new_configs,
3247 \%good_configs, \%bad_configs;
3248
3249 if (!$runtest) {
3250 my %tmp_config = %bad_configs;
3251
3252 doprint "Try bottom half\n";
3253
3254 my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
3255
3256 foreach my $item (@bottomhalf) {
3257 $tmp_config{$item} = $good_configs{$item};
3258 }
3259
3260 $runtest = process_new_config \%tmp_config, \%new_configs,
3261 \%good_configs, \%bad_configs;
3262 }
3263 }
3264
3265 if ($runtest) {
3266 $ret = run_config_bisect_test $type;
3267 if ($ret) {
3268 doprint "NEW GOOD CONFIG\n";
3269 %good_configs = %new_configs;
3270 run_command "mv $good_config ${good_config}.last";
3271 save_config \%good_configs, $good_config;
3272 %{$pgood} = %good_configs;
3273 } else {
3274 doprint "NEW BAD CONFIG\n";
3275 %bad_configs = %new_configs;
3276 run_command "mv $bad_config ${bad_config}.last";
3277 save_config \%bad_configs, $bad_config;
3278 %{$pbad} = %bad_configs;
3279 }
3280 return 0;
3281 }
3282
3283 fail "Hmm, need to do a mix match?\n";
3284 return -1;
3285}
3286
3287sub config_bisect {
3288 my ($i) = @_;
3289
3290 my $type = $config_bisect_type;
3291 my $ret;
3292
3293 $bad_config = $config_bisect;
3294
3295 if (defined($config_bisect_good)) {
3296 $good_config = $config_bisect_good;
3297 } elsif (defined($minconfig)) {
3298 $good_config = $minconfig;
3299 } else {
3300 doprint "No config specified, checking if defconfig works";
3301 $ret = run_bisect_test $type, "defconfig";
3302 if (!$ret) {
3303 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3304 return 1;
3305 }
3306 $good_config = $output_config;
3307 }
3308
3309 # we don't want min configs to cause issues here.
3310 doprint "Disabling 'MIN_CONFIG' for this test\n";
3311 undef $minconfig;
3312
3313 my %good_configs;
3314 my %bad_configs;
3315 my %tmp_configs;
3316
3317 doprint "Run good configs through make oldconfig\n";
3318 assign_configs \%tmp_configs, $good_config;
3319 create_config "$good_config", \%tmp_configs;
3320 assign_configs \%good_configs, $output_config;
3321
3322 doprint "Run bad configs through make oldconfig\n";
3323 assign_configs \%tmp_configs, $bad_config;
3324 create_config "$bad_config", \%tmp_configs;
3325 assign_configs \%bad_configs, $output_config;
3326
3327 $good_config = "$tmpdir/good_config";
3328 $bad_config = "$tmpdir/bad_config";
3329
3330 save_config \%good_configs, $good_config;
3331 save_config \%bad_configs, $bad_config;
3332
3333
3334 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3335 if ($config_bisect_check ne "good") {
3336 doprint "Testing bad config\n";
3337
3338 $ret = run_bisect_test $type, "useconfig:$bad_config";
3339 if ($ret) {
3340 fail "Bad config succeeded when expected to fail!";
3341 return 0;
3342 }
3343 }
3344 if ($config_bisect_check ne "bad") {
3345 doprint "Testing good config\n";
3346
3347 $ret = run_bisect_test $type, "useconfig:$good_config";
3348 if (!$ret) {
3349 fail "Good config failed when expected to succeed!";
3350 return 0;
3351 }
3352 }
3353 }
3354
3355 do {
3356 $ret = run_config_bisect \%good_configs, \%bad_configs;
3357 print_times;
3358 } while (!$ret);
3359
3360 return $ret if ($ret < 0);
3361
3362 success $i;
3363}
3364
3365sub patchcheck_reboot {
3366 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3367 reboot_to_good $patchcheck_sleep_time;
3368}
3369
3370sub patchcheck {
3371 my ($i) = @_;
3372
3373 die "PATCHCHECK_START[$i] not defined\n"
3374 if (!defined($patchcheck_start));
3375 die "PATCHCHECK_TYPE[$i] not defined\n"
3376 if (!defined($patchcheck_type));
3377
3378 my $start = $patchcheck_start;
3379
3380 my $cherry = $patchcheck_cherry;
3381 if (!defined($cherry)) {
3382 $cherry = 0;
3383 }
3384
3385 my $end = "HEAD";
3386 if (defined($patchcheck_end)) {
3387 $end = $patchcheck_end;
3388 } elsif ($cherry) {
3389 die "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3390 }
3391
3392 # Get the true sha1's since we can use things like HEAD~3
3393 $start = get_sha1($start);
3394 $end = get_sha1($end);
3395
3396 my $type = $patchcheck_type;
3397
3398 # Can't have a test without having a test to run
3399 if ($type eq "test" && !defined($run_test)) {
3400 $type = "boot";
3401 }
3402
3403 if ($cherry) {
3404 open (IN, "git cherry -v $start $end|") or
3405 dodie "could not get git list";
3406 } else {
3407 open (IN, "git log --pretty=oneline $end|") or
3408 dodie "could not get git list";
3409 }
3410
3411 my @list;
3412
3413 while (<IN>) {
3414 chomp;
3415 # git cherry adds a '+' we want to remove
3416 s/^\+ //;
3417 $list[$#list+1] = $_;
3418 last if (/^$start/);
3419 }
3420 close(IN);
3421
3422 if (!$cherry) {
3423 if ($list[$#list] !~ /^$start/) {
3424 fail "SHA1 $start not found";
3425 }
3426
3427 # go backwards in the list
3428 @list = reverse @list;
3429 }
3430
3431 doprint("Going to test the following commits:\n");
3432 foreach my $l (@list) {
3433 doprint "$l\n";
3434 }
3435
3436 my $save_clean = $noclean;
3437 my %ignored_warnings;
3438
3439 if (defined($ignore_warnings)) {
3440 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3441 $ignored_warnings{$sha1} = 1;
3442 }
3443 }
3444
3445 $in_patchcheck = 1;
3446 foreach my $item (@list) {
3447 my $sha1 = $item;
3448 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3449
3450 doprint "\nProcessing commit \"$item\"\n\n";
3451
3452 run_command "git checkout $sha1" or
3453 die "Failed to checkout $sha1";
3454
3455 # only clean on the first and last patch
3456 if ($item eq $list[0] ||
3457 $item eq $list[$#list]) {
3458 $noclean = $save_clean;
3459 } else {
3460 $noclean = 1;
3461 }
3462
3463 if (defined($minconfig)) {
3464 build "useconfig:$minconfig" or return 0;
3465 } else {
3466 # ?? no config to use?
3467 build "oldconfig" or return 0;
3468 }
3469
3470 # No need to do per patch checking if warnings file exists
3471 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3472 check_patch_buildlog $sha1 or return 0;
3473 }
3474
3475 check_buildlog or return 0;
3476
3477 next if ($type eq "build");
3478
3479 my $failed = 0;
3480
3481 start_monitor_and_install or $failed = 1;
3482
3483 if (!$failed && $type ne "boot"){
3484 do_run_test or $failed = 1;
3485 }
3486 end_monitor;
3487 if ($failed) {
3488 print_times;
3489 return 0;
3490 }
3491 patchcheck_reboot;
3492 print_times;
3493 }
3494 $in_patchcheck = 0;
3495 success $i;
3496
3497 return 1;
3498}
3499
3500my %depends;
3501my %depcount;
3502my $iflevel = 0;
3503my @ifdeps;
3504
3505# prevent recursion
3506my %read_kconfigs;
3507
3508sub add_dep {
3509 # $config depends on $dep
3510 my ($config, $dep) = @_;
3511
3512 if (defined($depends{$config})) {
3513 $depends{$config} .= " " . $dep;
3514 } else {
3515 $depends{$config} = $dep;
3516 }
3517
3518 # record the number of configs depending on $dep
3519 if (defined $depcount{$dep}) {
3520 $depcount{$dep}++;
3521 } else {
3522 $depcount{$dep} = 1;
3523 }
3524}
3525
3526# taken from streamline_config.pl
3527sub read_kconfig {
3528 my ($kconfig) = @_;
3529
3530 my $state = "NONE";
3531 my $config;
3532 my @kconfigs;
3533
3534 my $cont = 0;
3535 my $line;
3536
3537
3538 if (! -f $kconfig) {
3539 doprint "file $kconfig does not exist, skipping\n";
3540 return;
3541 }
3542
3543 open(KIN, "$kconfig")
3544 or die "Can't open $kconfig";
3545 while (<KIN>) {
3546 chomp;
3547
3548 # Make sure that lines ending with \ continue
3549 if ($cont) {
3550 $_ = $line . " " . $_;
3551 }
3552
3553 if (s/\\$//) {
3554 $cont = 1;
3555 $line = $_;
3556 next;
3557 }
3558
3559 $cont = 0;
3560
3561 # collect any Kconfig sources
3562 if (/^source\s*"(.*)"/) {
3563 $kconfigs[$#kconfigs+1] = $1;
3564 }
3565
3566 # configs found
3567 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3568 $state = "NEW";
3569 $config = $2;
3570
3571 for (my $i = 0; $i < $iflevel; $i++) {
3572 add_dep $config, $ifdeps[$i];
3573 }
3574
3575 # collect the depends for the config
3576 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3577
3578 add_dep $config, $1;
3579
3580 # Get the configs that select this config
3581 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3582
3583 # selected by depends on config
3584 add_dep $1, $config;
3585
3586 # Check for if statements
3587 } elsif (/^if\s+(.*\S)\s*$/) {
3588 my $deps = $1;
3589 # remove beginning and ending non text
3590 $deps =~ s/^[^a-zA-Z0-9_]*//;
3591 $deps =~ s/[^a-zA-Z0-9_]*$//;
3592
3593 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3594
3595 $ifdeps[$iflevel++] = join ':', @deps;
3596
3597 } elsif (/^endif/) {
3598
3599 $iflevel-- if ($iflevel);
3600
3601 # stop on "help"
3602 } elsif (/^\s*help\s*$/) {
3603 $state = "NONE";
3604 }
3605 }
3606 close(KIN);
3607
3608 # read in any configs that were found.
3609 foreach $kconfig (@kconfigs) {
3610 if (!defined($read_kconfigs{$kconfig})) {
3611 $read_kconfigs{$kconfig} = 1;
3612 read_kconfig("$builddir/$kconfig");
3613 }
3614 }
3615}
3616
3617sub read_depends {
3618 # find out which arch this is by the kconfig file
3619 open (IN, $output_config)
3620 or dodie "Failed to read $output_config";
3621 my $arch;
3622 while (<IN>) {
3623 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3624 $arch = $1;
3625 last;
3626 }
3627 }
3628 close IN;
3629
3630 if (!defined($arch)) {
3631 doprint "Could not find arch from config file\n";
3632 doprint "no dependencies used\n";
3633 return;
3634 }
3635
3636 # arch is really the subarch, we need to know
3637 # what directory to look at.
3638 if ($arch eq "i386" || $arch eq "x86_64") {
3639 $arch = "x86";
3640 } elsif ($arch =~ /^tile/) {
3641 $arch = "tile";
3642 }
3643
3644 my $kconfig = "$builddir/arch/$arch/Kconfig";
3645
3646 if (! -f $kconfig && $arch =~ /\d$/) {
3647 my $orig = $arch;
3648 # some subarchs have numbers, truncate them
3649 $arch =~ s/\d*$//;
3650 $kconfig = "$builddir/arch/$arch/Kconfig";
3651 if (! -f $kconfig) {
3652 doprint "No idea what arch dir $orig is for\n";
3653 doprint "no dependencies used\n";
3654 return;
3655 }
3656 }
3657
3658 read_kconfig($kconfig);
3659}
3660
3661sub make_new_config {
3662 my @configs = @_;
3663
3664 open (OUT, ">$output_config")
3665 or dodie "Failed to write $output_config";
3666
3667 foreach my $config (@configs) {
3668 print OUT "$config\n";
3669 }
3670 close OUT;
3671}
3672
3673sub chomp_config {
3674 my ($config) = @_;
3675
3676 $config =~ s/CONFIG_//;
3677
3678 return $config;
3679}
3680
3681sub get_depends {
3682 my ($dep) = @_;
3683
3684 my $kconfig = chomp_config $dep;
3685
3686 $dep = $depends{"$kconfig"};
3687
3688 # the dep string we have saves the dependencies as they
3689 # were found, including expressions like ! && ||. We
3690 # want to split this out into just an array of configs.
3691
3692 my $valid = "A-Za-z_0-9";
3693
3694 my @configs;
3695
3696 while ($dep =~ /[$valid]/) {
3697
3698 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3699 my $conf = "CONFIG_" . $1;
3700
3701 $configs[$#configs + 1] = $conf;
3702
3703 $dep =~ s/^[^$valid]*[$valid]+//;
3704 } else {
3705 die "this should never happen";
3706 }
3707 }
3708
3709 return @configs;
3710}
3711
3712my %min_configs;
3713my %keep_configs;
3714my %save_configs;
3715my %processed_configs;
3716my %nochange_config;
3717
3718sub test_this_config {
3719 my ($config) = @_;
3720
3721 my $found;
3722
3723 # if we already processed this config, skip it
3724 if (defined($processed_configs{$config})) {
3725 return undef;
3726 }
3727 $processed_configs{$config} = 1;
3728
3729 # if this config failed during this round, skip it
3730 if (defined($nochange_config{$config})) {
3731 return undef;
3732 }
3733
3734 my $kconfig = chomp_config $config;
3735
3736 # Test dependencies first
3737 if (defined($depends{"$kconfig"})) {
3738 my @parents = get_depends $config;
3739 foreach my $parent (@parents) {
3740 # if the parent is in the min config, check it first
3741 next if (!defined($min_configs{$parent}));
3742 $found = test_this_config($parent);
3743 if (defined($found)) {
3744 return $found;
3745 }
3746 }
3747 }
3748
3749 # Remove this config from the list of configs
3750 # do a make olddefconfig and then read the resulting
3751 # .config to make sure it is missing the config that
3752 # we had before
3753 my %configs = %min_configs;
3754 delete $configs{$config};
3755 make_new_config ((values %configs), (values %keep_configs));
3756 make_oldconfig;
3757 undef %configs;
3758 assign_configs \%configs, $output_config;
3759
3760 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3761 return $config;
3762 }
3763
3764 doprint "disabling config $config did not change .config\n";
3765
3766 $nochange_config{$config} = 1;
3767
3768 return undef;
3769}
3770
3771sub make_min_config {
3772 my ($i) = @_;
3773
3774 my $type = $minconfig_type;
3775 if ($type ne "boot" && $type ne "test") {
3776 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3777 " make_min_config works only with 'boot' and 'test'\n" and return;
3778 }
3779
3780 if (!defined($output_minconfig)) {
3781 fail "OUTPUT_MIN_CONFIG not defined" and return;
3782 }
3783
3784 # If output_minconfig exists, and the start_minconfig
3785 # came from min_config, than ask if we should use
3786 # that instead.
3787 if (-f $output_minconfig && !$start_minconfig_defined) {
3788 print "$output_minconfig exists\n";
3789 if (!defined($use_output_minconfig)) {
3790 if (read_yn " Use it as minconfig?") {
3791 $start_minconfig = $output_minconfig;
3792 }
3793 } elsif ($use_output_minconfig > 0) {
3794 doprint "Using $output_minconfig as MIN_CONFIG\n";
3795 $start_minconfig = $output_minconfig;
3796 } else {
3797 doprint "Set to still use MIN_CONFIG as starting point\n";
3798 }
3799 }
3800
3801 if (!defined($start_minconfig)) {
3802 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3803 }
3804
3805 my $temp_config = "$tmpdir/temp_config";
3806
3807 # First things first. We build an allnoconfig to find
3808 # out what the defaults are that we can't touch.
3809 # Some are selections, but we really can't handle selections.
3810
3811 my $save_minconfig = $minconfig;
3812 undef $minconfig;
3813
3814 run_command "$make allnoconfig" or return 0;
3815
3816 read_depends;
3817
3818 process_config_ignore $output_config;
3819
3820 undef %save_configs;
3821 undef %min_configs;
3822
3823 if (defined($ignore_config)) {
3824 # make sure the file exists
3825 `touch $ignore_config`;
3826 assign_configs \%save_configs, $ignore_config;
3827 }
3828
3829 %keep_configs = %save_configs;
3830
3831 doprint "Load initial configs from $start_minconfig\n";
3832
3833 # Look at the current min configs, and save off all the
3834 # ones that were set via the allnoconfig
3835 assign_configs \%min_configs, $start_minconfig;
3836
3837 my @config_keys = keys %min_configs;
3838
3839 # All configs need a depcount
3840 foreach my $config (@config_keys) {
3841 my $kconfig = chomp_config $config;
3842 if (!defined $depcount{$kconfig}) {
3843 $depcount{$kconfig} = 0;
3844 }
3845 }
3846
3847 # Remove anything that was set by the make allnoconfig
3848 # we shouldn't need them as they get set for us anyway.
3849 foreach my $config (@config_keys) {
3850 # Remove anything in the ignore_config
3851 if (defined($keep_configs{$config})) {
3852 my $file = $ignore_config;
3853 $file =~ s,.*/(.*?)$,$1,;
3854 doprint "$config set by $file ... ignored\n";
3855 delete $min_configs{$config};
3856 next;
3857 }
3858 # But make sure the settings are the same. If a min config
3859 # sets a selection, we do not want to get rid of it if
3860 # it is not the same as what we have. Just move it into
3861 # the keep configs.
3862 if (defined($config_ignore{$config})) {
3863 if ($config_ignore{$config} ne $min_configs{$config}) {
3864 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3865 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3866 $keep_configs{$config} = $min_configs{$config};
3867 } else {
3868 doprint "$config set by allnoconfig ... ignored\n";
3869 }
3870 delete $min_configs{$config};
3871 }
3872 }
3873
3874 my $done = 0;
3875 my $take_two = 0;
3876
3877 while (!$done) {
3878
3879 my $config;
3880 my $found;
3881
3882 # Now disable each config one by one and do a make oldconfig
3883 # till we find a config that changes our list.
3884
3885 my @test_configs = keys %min_configs;
3886
3887 # Sort keys by who is most dependent on
3888 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3889 @test_configs ;
3890
3891 # Put configs that did not modify the config at the end.
3892 my $reset = 1;
3893 for (my $i = 0; $i < $#test_configs; $i++) {
3894 if (!defined($nochange_config{$test_configs[0]})) {
3895 $reset = 0;
3896 last;
3897 }
3898 # This config didn't change the .config last time.
3899 # Place it at the end
3900 my $config = shift @test_configs;
3901 push @test_configs, $config;
3902 }
3903
3904 # if every test config has failed to modify the .config file
3905 # in the past, then reset and start over.
3906 if ($reset) {
3907 undef %nochange_config;
3908 }
3909
3910 undef %processed_configs;
3911
3912 foreach my $config (@test_configs) {
3913
3914 $found = test_this_config $config;
3915
3916 last if (defined($found));
3917
3918 # oh well, try another config
3919 }
3920
3921 if (!defined($found)) {
3922 # we could have failed due to the nochange_config hash
3923 # reset and try again
3924 if (!$take_two) {
3925 undef %nochange_config;
3926 $take_two = 1;
3927 next;
3928 }
3929 doprint "No more configs found that we can disable\n";
3930 $done = 1;
3931 last;
3932 }
3933 $take_two = 0;
3934
3935 $config = $found;
3936
3937 doprint "Test with $config disabled\n";
3938
3939 # set in_bisect to keep build and monitor from dieing
3940 $in_bisect = 1;
3941
3942 my $failed = 0;
3943 build "oldconfig" or $failed = 1;
3944 if (!$failed) {
3945 start_monitor_and_install or $failed = 1;
3946
3947 if ($type eq "test" && !$failed) {
3948 do_run_test or $failed = 1;
3949 }
3950
3951 end_monitor;
3952 }
3953
3954 $in_bisect = 0;
3955
3956 if ($failed) {
3957 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3958 # this config is needed, add it to the ignore list.
3959 $keep_configs{$config} = $min_configs{$config};
3960 $save_configs{$config} = $min_configs{$config};
3961 delete $min_configs{$config};
3962
3963 # update new ignore configs
3964 if (defined($ignore_config)) {
3965 open (OUT, ">$temp_config")
3966 or die "Can't write to $temp_config";
3967 foreach my $config (keys %save_configs) {
3968 print OUT "$save_configs{$config}\n";
3969 }
3970 close OUT;
3971 run_command "mv $temp_config $ignore_config" or
3972 dodie "failed to copy update to $ignore_config";
3973 }
3974
3975 } else {
3976 # We booted without this config, remove it from the minconfigs.
3977 doprint "$config is not needed, disabling\n";
3978
3979 delete $min_configs{$config};
3980
3981 # Also disable anything that is not enabled in this config
3982 my %configs;
3983 assign_configs \%configs, $output_config;
3984 my @config_keys = keys %min_configs;
3985 foreach my $config (@config_keys) {
3986 if (!defined($configs{$config})) {
3987 doprint "$config is not set, disabling\n";
3988 delete $min_configs{$config};
3989 }
3990 }
3991
3992 # Save off all the current mandatory configs
3993 open (OUT, ">$temp_config")
3994 or die "Can't write to $temp_config";
3995 foreach my $config (keys %keep_configs) {
3996 print OUT "$keep_configs{$config}\n";
3997 }
3998 foreach my $config (keys %min_configs) {
3999 print OUT "$min_configs{$config}\n";
4000 }
4001 close OUT;
4002
4003 run_command "mv $temp_config $output_minconfig" or
4004 dodie "failed to copy update to $output_minconfig";
4005 }
4006
4007 doprint "Reboot and wait $sleep_time seconds\n";
4008 reboot_to_good $sleep_time;
4009 }
4010
4011 success $i;
4012 return 1;
4013}
4014
4015sub make_warnings_file {
4016 my ($i) = @_;
4017
4018 if (!defined($warnings_file)) {
4019 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4020 }
4021
4022 if ($build_type eq "nobuild") {
4023 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4024 }
4025
4026 build $build_type or dodie "Failed to build";
4027
4028 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4029
4030 open(IN, $buildlog) or dodie "Can't open $buildlog";
4031 while (<IN>) {
4032
4033 # Some compilers use UTF-8 extended for quotes
4034 # for distcc heterogeneous systems, this causes issues
4035 s/$utf8_quote/'/g;
4036
4037 if (/$check_build_re/) {
4038 print OUT;
4039 }
4040 }
4041 close(IN);
4042
4043 close(OUT);
4044
4045 success $i;
4046}
4047
4048$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4049
4050if ($#ARGV == 0) {
4051 $ktest_config = $ARGV[0];
4052 if (! -f $ktest_config) {
4053 print "$ktest_config does not exist.\n";
4054 if (!read_yn "Create it?") {
4055 exit 0;
4056 }
4057 }
4058}
4059
4060if (! -f $ktest_config) {
4061 $newconfig = 1;
4062 get_test_case;
4063 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4064 print OUT << "EOF"
4065# Generated by ktest.pl
4066#
4067
4068# PWD is a ktest.pl variable that will result in the process working
4069# directory that ktest.pl is executed in.
4070
4071# THIS_DIR is automatically assigned the PWD of the path that generated
4072# the config file. It is best to use this variable when assigning other
4073# directory paths within this directory. This allows you to easily
4074# move the test cases to other locations or to other machines.
4075#
4076THIS_DIR := $variable{"PWD"}
4077
4078# Define each test with TEST_START
4079# The config options below it will override the defaults
4080TEST_START
4081TEST_TYPE = $default{"TEST_TYPE"}
4082
4083DEFAULTS
4084EOF
4085;
4086 close(OUT);
4087}
4088read_config $ktest_config;
4089
4090if (defined($opt{"LOG_FILE"})) {
4091 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4092}
4093
4094# Append any configs entered in manually to the config file.
4095my @new_configs = keys %entered_configs;
4096if ($#new_configs >= 0) {
4097 print "\nAppending entered in configs to $ktest_config\n";
4098 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4099 foreach my $config (@new_configs) {
4100 print OUT "$config = $entered_configs{$config}\n";
4101 $opt{$config} = process_variables($entered_configs{$config});
4102 }
4103}
4104
4105if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4106 unlink $opt{"LOG_FILE"};
4107}
4108
4109doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4110
4111for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4112
4113 if (!$i) {
4114 doprint "DEFAULT OPTIONS:\n";
4115 } else {
4116 doprint "\nTEST $i OPTIONS";
4117 if (defined($repeat_tests{$i})) {
4118 $repeat = $repeat_tests{$i};
4119 doprint " ITERATE $repeat";
4120 }
4121 doprint "\n";
4122 }
4123
4124 foreach my $option (sort keys %opt) {
4125
4126 if ($option =~ /\[(\d+)\]$/) {
4127 next if ($i != $1);
4128 } else {
4129 next if ($i);
4130 }
4131
4132 doprint "$option = $opt{$option}\n";
4133 }
4134}
4135
4136sub option_defined {
4137 my ($option) = @_;
4138
4139 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4140 return 1;
4141 }
4142
4143 return 0;
4144}
4145
4146sub __set_test_option {
4147 my ($name, $i) = @_;
4148
4149 my $option = "$name\[$i\]";
4150
4151 if (option_defined($option)) {
4152 return $opt{$option};
4153 }
4154
4155 foreach my $test (keys %repeat_tests) {
4156 if ($i >= $test &&
4157 $i < $test + $repeat_tests{$test}) {
4158 $option = "$name\[$test\]";
4159 if (option_defined($option)) {
4160 return $opt{$option};
4161 }
4162 }
4163 }
4164
4165 if (option_defined($name)) {
4166 return $opt{$name};
4167 }
4168
4169 return undef;
4170}
4171
4172sub set_test_option {
4173 my ($name, $i) = @_;
4174
4175 my $option = __set_test_option($name, $i);
4176 return $option if (!defined($option));
4177
4178 return eval_option($name, $option, $i);
4179}
4180
4181# First we need to do is the builds
4182for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4183
4184 # Do not reboot on failing test options
4185 $no_reboot = 1;
4186 $reboot_success = 0;
4187
4188 $have_version = 0;
4189
4190 $iteration = $i;
4191
4192 $build_time = 0;
4193 $install_time = 0;
4194 $reboot_time = 0;
4195 $test_time = 0;
4196
4197 undef %force_config;
4198
4199 my $makecmd = set_test_option("MAKE_CMD", $i);
4200
4201 $outputdir = set_test_option("OUTPUT_DIR", $i);
4202 $builddir = set_test_option("BUILD_DIR", $i);
4203
4204 chdir $builddir || die "can't change directory to $builddir";
4205
4206 if (!-d $outputdir) {
4207 mkpath($outputdir) or
4208 die "can't create $outputdir";
4209 }
4210
4211 $make = "$makecmd O=$outputdir";
4212
4213 # Load all the options into their mapped variable names
4214 foreach my $opt (keys %option_map) {
4215 ${$option_map{$opt}} = set_test_option($opt, $i);
4216 }
4217
4218 $start_minconfig_defined = 1;
4219
4220 # The first test may override the PRE_KTEST option
4221 if (defined($pre_ktest) && $i == 1) {
4222 doprint "\n";
4223 run_command $pre_ktest;
4224 }
4225
4226 # Any test can override the POST_KTEST option
4227 # The last test takes precedence.
4228 if (defined($post_ktest)) {
4229 $final_post_ktest = $post_ktest;
4230 }
4231
4232 if (!defined($start_minconfig)) {
4233 $start_minconfig_defined = 0;
4234 $start_minconfig = $minconfig;
4235 }
4236
4237 if (!-d $tmpdir) {
4238 mkpath($tmpdir) or
4239 die "can't create $tmpdir";
4240 }
4241
4242 $ENV{"SSH_USER"} = $ssh_user;
4243 $ENV{"MACHINE"} = $machine;
4244
4245 $buildlog = "$tmpdir/buildlog-$machine";
4246 $testlog = "$tmpdir/testlog-$machine";
4247 $dmesg = "$tmpdir/dmesg-$machine";
4248 $output_config = "$outputdir/.config";
4249
4250 if (!$buildonly) {
4251 $target = "$ssh_user\@$machine";
4252 if ($reboot_type eq "grub") {
4253 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4254 } elsif ($reboot_type eq "grub2") {
4255 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4256 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4257 } elsif ($reboot_type eq "syslinux") {
4258 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4259 }
4260 }
4261
4262 my $run_type = $build_type;
4263 if ($test_type eq "patchcheck") {
4264 $run_type = $patchcheck_type;
4265 } elsif ($test_type eq "bisect") {
4266 $run_type = $bisect_type;
4267 } elsif ($test_type eq "config_bisect") {
4268 $run_type = $config_bisect_type;
4269 } elsif ($test_type eq "make_min_config") {
4270 $run_type = "";
4271 } elsif ($test_type eq "make_warnings_file") {
4272 $run_type = "";
4273 }
4274
4275 # mistake in config file?
4276 if (!defined($run_type)) {
4277 $run_type = "ERROR";
4278 }
4279
4280 my $installme = "";
4281 $installme = " no_install" if ($no_install);
4282
4283 my $name = "";
4284
4285 if (defined($test_name)) {
4286 $name = " ($test_name)";
4287 }
4288
4289 doprint "\n\n";
4290 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4291
4292 if (defined($pre_test)) {
4293 run_command $pre_test;
4294 }
4295
4296 unlink $dmesg;
4297 unlink $buildlog;
4298 unlink $testlog;
4299
4300 if (defined($addconfig)) {
4301 my $min = $minconfig;
4302 if (!defined($minconfig)) {
4303 $min = "";
4304 }
4305 run_command "cat $addconfig $min > $tmpdir/add_config" or
4306 dodie "Failed to create temp config";
4307 $minconfig = "$tmpdir/add_config";
4308 }
4309
4310 if (defined($checkout)) {
4311 run_command "git checkout $checkout" or
4312 die "failed to checkout $checkout";
4313 }
4314
4315 $no_reboot = 0;
4316
4317 # A test may opt to not reboot the box
4318 if ($reboot_on_success) {
4319 $reboot_success = 1;
4320 }
4321
4322 if ($test_type eq "bisect") {
4323 bisect $i;
4324 next;
4325 } elsif ($test_type eq "config_bisect") {
4326 config_bisect $i;
4327 next;
4328 } elsif ($test_type eq "patchcheck") {
4329 patchcheck $i;
4330 next;
4331 } elsif ($test_type eq "make_min_config") {
4332 make_min_config $i;
4333 next;
4334 } elsif ($test_type eq "make_warnings_file") {
4335 $no_reboot = 1;
4336 make_warnings_file $i;
4337 next;
4338 }
4339
4340 if ($build_type ne "nobuild") {
4341 build $build_type or next;
4342 check_buildlog or next;
4343 }
4344
4345 if ($test_type eq "install") {
4346 get_version;
4347 install;
4348 success $i;
4349 next;
4350 }
4351
4352 if ($test_type ne "build") {
4353 my $failed = 0;
4354 start_monitor_and_install or $failed = 1;
4355
4356 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4357 do_run_test or $failed = 1;
4358 }
4359 end_monitor;
4360 if ($failed) {
4361 print_times;
4362 next;
4363 }
4364 }
4365
4366 print_times;
4367
4368 success $i;
4369}
4370
4371if (defined($final_post_ktest)) {
4372 run_command $final_post_ktest;
4373}
4374
4375if ($opt{"POWEROFF_ON_SUCCESS"}) {
4376 halt;
4377} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4378 reboot_to_good;
4379} elsif (defined($switch_to_good)) {
4380 # still need to get to the good kernel
4381 run_command $switch_to_good;
4382}
4383
4384
4385doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4386
4387exit 0;