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1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14
15my $VERSION = "0.2";
16
17$| = 1;
18
19my %opt;
20my %repeat_tests;
21my %repeats;
22my %evals;
23
24#default opts
25my %default = (
26 "MAILER" => "sendmail", # default mailer
27 "EMAIL_ON_ERROR" => 1,
28 "EMAIL_WHEN_FINISHED" => 1,
29 "EMAIL_WHEN_CANCELED" => 0,
30 "EMAIL_WHEN_STARTED" => 0,
31 "NUM_TESTS" => 1,
32 "TEST_TYPE" => "build",
33 "BUILD_TYPE" => "randconfig",
34 "MAKE_CMD" => "make",
35 "CLOSE_CONSOLE_SIGNAL" => "INT",
36 "TIMEOUT" => 120,
37 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
38 "SLEEP_TIME" => 60, # sleep time between tests
39 "BUILD_NOCLEAN" => 0,
40 "REBOOT_ON_ERROR" => 0,
41 "POWEROFF_ON_ERROR" => 0,
42 "REBOOT_ON_SUCCESS" => 1,
43 "POWEROFF_ON_SUCCESS" => 0,
44 "BUILD_OPTIONS" => "",
45 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
46 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
47 "CLEAR_LOG" => 0,
48 "BISECT_MANUAL" => 0,
49 "BISECT_SKIP" => 1,
50 "BISECT_TRIES" => 1,
51 "MIN_CONFIG_TYPE" => "boot",
52 "SUCCESS_LINE" => "login:",
53 "DETECT_TRIPLE_FAULT" => 1,
54 "NO_INSTALL" => 0,
55 "BOOTED_TIMEOUT" => 1,
56 "DIE_ON_FAILURE" => 1,
57 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
58 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
59 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
60 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
61 "REBOOT_RETURN_CODE" => 255,
62 "STOP_AFTER_SUCCESS" => 10,
63 "STOP_AFTER_FAILURE" => 60,
64 "STOP_TEST_AFTER" => 600,
65 "MAX_MONITOR_WAIT" => 1800,
66 "GRUB_REBOOT" => "grub2-reboot",
67 "GRUB_BLS_GET" => "grubby --info=ALL",
68 "SYSLINUX" => "extlinux",
69 "SYSLINUX_PATH" => "/boot/extlinux",
70 "CONNECT_TIMEOUT" => 25,
71
72# required, and we will ask users if they don't have them but we keep the default
73# value something that is common.
74 "REBOOT_TYPE" => "grub",
75 "LOCALVERSION" => "-test",
76 "SSH_USER" => "root",
77 "BUILD_TARGET" => "arch/x86/boot/bzImage",
78 "TARGET_IMAGE" => "/boot/vmlinuz-test",
79
80 "LOG_FILE" => undef,
81 "IGNORE_UNUSED" => 0,
82);
83
84my $ktest_config = "ktest.conf";
85my $version;
86my $have_version = 0;
87my $machine;
88my $last_machine;
89my $ssh_user;
90my $tmpdir;
91my $builddir;
92my $outputdir;
93my $output_config;
94my $test_type;
95my $build_type;
96my $build_options;
97my $final_post_ktest;
98my $pre_ktest;
99my $post_ktest;
100my $pre_test;
101my $post_test;
102my $pre_build;
103my $post_build;
104my $pre_build_die;
105my $post_build_die;
106my $reboot_type;
107my $reboot_script;
108my $power_cycle;
109my $reboot;
110my $reboot_return_code;
111my $reboot_on_error;
112my $switch_to_good;
113my $switch_to_test;
114my $poweroff_on_error;
115my $reboot_on_success;
116my $die_on_failure;
117my $powercycle_after_reboot;
118my $poweroff_after_halt;
119my $max_monitor_wait;
120my $ssh_exec;
121my $scp_to_target;
122my $scp_to_target_install;
123my $power_off;
124my $grub_menu;
125my $last_grub_menu;
126my $grub_file;
127my $grub_number;
128my $grub_reboot;
129my $grub_bls_get;
130my $syslinux;
131my $syslinux_path;
132my $syslinux_label;
133my $target;
134my $make;
135my $pre_install;
136my $post_install;
137my $no_install;
138my $noclean;
139my $minconfig;
140my $start_minconfig;
141my $start_minconfig_defined;
142my $output_minconfig;
143my $minconfig_type;
144my $use_output_minconfig;
145my $warnings_file;
146my $ignore_config;
147my $ignore_errors;
148my $addconfig;
149my $in_bisect = 0;
150my $bisect_bad_commit = "";
151my $reverse_bisect;
152my $bisect_manual;
153my $bisect_skip;
154my $bisect_tries;
155my $config_bisect_good;
156my $bisect_ret_good;
157my $bisect_ret_bad;
158my $bisect_ret_skip;
159my $bisect_ret_abort;
160my $bisect_ret_default;
161my $in_patchcheck = 0;
162my $run_test;
163my $buildlog;
164my $testlog;
165my $dmesg;
166my $monitor_fp;
167my $monitor_pid;
168my $monitor_cnt = 0;
169my $sleep_time;
170my $bisect_sleep_time;
171my $patchcheck_sleep_time;
172my $ignore_warnings;
173my $store_failures;
174my $store_successes;
175my $test_name;
176my $timeout;
177my $connect_timeout;
178my $config_bisect_exec;
179my $booted_timeout;
180my $detect_triplefault;
181my $console;
182my $close_console_signal;
183my $reboot_success_line;
184my $success_line;
185my $stop_after_success;
186my $stop_after_failure;
187my $stop_test_after;
188my $build_target;
189my $target_image;
190my $checkout;
191my $localversion;
192my $iteration = 0;
193my $successes = 0;
194my $stty_orig;
195my $run_command_status = 0;
196
197my $bisect_good;
198my $bisect_bad;
199my $bisect_type;
200my $bisect_start;
201my $bisect_replay;
202my $bisect_files;
203my $bisect_reverse;
204my $bisect_check;
205
206my $config_bisect;
207my $config_bisect_type;
208my $config_bisect_check;
209
210my $patchcheck_type;
211my $patchcheck_start;
212my $patchcheck_cherry;
213my $patchcheck_end;
214
215my $build_time;
216my $install_time;
217my $reboot_time;
218my $test_time;
219
220my $pwd;
221my $dirname = $FindBin::Bin;
222
223my $mailto;
224my $mailer;
225my $mail_path;
226my $mail_command;
227my $email_on_error;
228my $email_when_finished;
229my $email_when_started;
230my $email_when_canceled;
231
232my $script_start_time = localtime();
233
234# set when a test is something other that just building or install
235# which would require more options.
236my $buildonly = 1;
237
238# tell build not to worry about warnings, even when WARNINGS_FILE is set
239my $warnings_ok = 0;
240
241# set when creating a new config
242my $newconfig = 0;
243
244my %entered_configs;
245my %config_help;
246my %variable;
247
248# force_config is the list of configs that we force enabled (or disabled)
249# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
250my %force_config;
251
252# do not force reboots on config problems
253my $no_reboot = 1;
254
255# reboot on success
256my $reboot_success = 0;
257
258my %option_map = (
259 "MAILTO" => \$mailto,
260 "MAILER" => \$mailer,
261 "MAIL_PATH" => \$mail_path,
262 "MAIL_COMMAND" => \$mail_command,
263 "EMAIL_ON_ERROR" => \$email_on_error,
264 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
265 "EMAIL_WHEN_STARTED" => \$email_when_started,
266 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
267 "MACHINE" => \$machine,
268 "SSH_USER" => \$ssh_user,
269 "TMP_DIR" => \$tmpdir,
270 "OUTPUT_DIR" => \$outputdir,
271 "BUILD_DIR" => \$builddir,
272 "TEST_TYPE" => \$test_type,
273 "PRE_KTEST" => \$pre_ktest,
274 "POST_KTEST" => \$post_ktest,
275 "PRE_TEST" => \$pre_test,
276 "POST_TEST" => \$post_test,
277 "BUILD_TYPE" => \$build_type,
278 "BUILD_OPTIONS" => \$build_options,
279 "PRE_BUILD" => \$pre_build,
280 "POST_BUILD" => \$post_build,
281 "PRE_BUILD_DIE" => \$pre_build_die,
282 "POST_BUILD_DIE" => \$post_build_die,
283 "POWER_CYCLE" => \$power_cycle,
284 "REBOOT" => \$reboot,
285 "REBOOT_RETURN_CODE" => \$reboot_return_code,
286 "BUILD_NOCLEAN" => \$noclean,
287 "MIN_CONFIG" => \$minconfig,
288 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
289 "START_MIN_CONFIG" => \$start_minconfig,
290 "MIN_CONFIG_TYPE" => \$minconfig_type,
291 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
292 "WARNINGS_FILE" => \$warnings_file,
293 "IGNORE_CONFIG" => \$ignore_config,
294 "TEST" => \$run_test,
295 "ADD_CONFIG" => \$addconfig,
296 "REBOOT_TYPE" => \$reboot_type,
297 "GRUB_MENU" => \$grub_menu,
298 "GRUB_FILE" => \$grub_file,
299 "GRUB_REBOOT" => \$grub_reboot,
300 "GRUB_BLS_GET" => \$grub_bls_get,
301 "SYSLINUX" => \$syslinux,
302 "SYSLINUX_PATH" => \$syslinux_path,
303 "SYSLINUX_LABEL" => \$syslinux_label,
304 "PRE_INSTALL" => \$pre_install,
305 "POST_INSTALL" => \$post_install,
306 "NO_INSTALL" => \$no_install,
307 "REBOOT_SCRIPT" => \$reboot_script,
308 "REBOOT_ON_ERROR" => \$reboot_on_error,
309 "SWITCH_TO_GOOD" => \$switch_to_good,
310 "SWITCH_TO_TEST" => \$switch_to_test,
311 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
312 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
313 "DIE_ON_FAILURE" => \$die_on_failure,
314 "POWER_OFF" => \$power_off,
315 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
316 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
317 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
318 "SLEEP_TIME" => \$sleep_time,
319 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
320 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
321 "IGNORE_WARNINGS" => \$ignore_warnings,
322 "IGNORE_ERRORS" => \$ignore_errors,
323 "BISECT_MANUAL" => \$bisect_manual,
324 "BISECT_SKIP" => \$bisect_skip,
325 "BISECT_TRIES" => \$bisect_tries,
326 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
327 "BISECT_RET_GOOD" => \$bisect_ret_good,
328 "BISECT_RET_BAD" => \$bisect_ret_bad,
329 "BISECT_RET_SKIP" => \$bisect_ret_skip,
330 "BISECT_RET_ABORT" => \$bisect_ret_abort,
331 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
332 "STORE_FAILURES" => \$store_failures,
333 "STORE_SUCCESSES" => \$store_successes,
334 "TEST_NAME" => \$test_name,
335 "TIMEOUT" => \$timeout,
336 "CONNECT_TIMEOUT" => \$connect_timeout,
337 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
338 "BOOTED_TIMEOUT" => \$booted_timeout,
339 "CONSOLE" => \$console,
340 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
341 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
342 "SUCCESS_LINE" => \$success_line,
343 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
344 "STOP_AFTER_SUCCESS" => \$stop_after_success,
345 "STOP_AFTER_FAILURE" => \$stop_after_failure,
346 "STOP_TEST_AFTER" => \$stop_test_after,
347 "BUILD_TARGET" => \$build_target,
348 "SSH_EXEC" => \$ssh_exec,
349 "SCP_TO_TARGET" => \$scp_to_target,
350 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
351 "CHECKOUT" => \$checkout,
352 "TARGET_IMAGE" => \$target_image,
353 "LOCALVERSION" => \$localversion,
354
355 "BISECT_GOOD" => \$bisect_good,
356 "BISECT_BAD" => \$bisect_bad,
357 "BISECT_TYPE" => \$bisect_type,
358 "BISECT_START" => \$bisect_start,
359 "BISECT_REPLAY" => \$bisect_replay,
360 "BISECT_FILES" => \$bisect_files,
361 "BISECT_REVERSE" => \$bisect_reverse,
362 "BISECT_CHECK" => \$bisect_check,
363
364 "CONFIG_BISECT" => \$config_bisect,
365 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
366 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
367
368 "PATCHCHECK_TYPE" => \$patchcheck_type,
369 "PATCHCHECK_START" => \$patchcheck_start,
370 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
371 "PATCHCHECK_END" => \$patchcheck_end,
372);
373
374# Options may be used by other options, record them.
375my %used_options;
376
377# default variables that can be used
378chomp ($variable{"PWD"} = `pwd`);
379$pwd = $variable{"PWD"};
380
381$config_help{"MACHINE"} = << "EOF"
382 The machine hostname that you will test.
383 For build only tests, it is still needed to differentiate log files.
384EOF
385 ;
386$config_help{"SSH_USER"} = << "EOF"
387 The box is expected to have ssh on normal bootup, provide the user
388 (most likely root, since you need privileged operations)
389EOF
390 ;
391$config_help{"BUILD_DIR"} = << "EOF"
392 The directory that contains the Linux source code (full path).
393 You can use \${PWD} that will be the path where ktest.pl is run, or use
394 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
395EOF
396 ;
397$config_help{"OUTPUT_DIR"} = << "EOF"
398 The directory that the objects will be built (full path).
399 (can not be same as BUILD_DIR)
400 You can use \${PWD} that will be the path where ktest.pl is run, or use
401 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
402EOF
403 ;
404$config_help{"BUILD_TARGET"} = << "EOF"
405 The location of the compiled file to copy to the target.
406 (relative to OUTPUT_DIR)
407EOF
408 ;
409$config_help{"BUILD_OPTIONS"} = << "EOF"
410 Options to add to \"make\" when building.
411 i.e. -j20
412EOF
413 ;
414$config_help{"TARGET_IMAGE"} = << "EOF"
415 The place to put your image on the test machine.
416EOF
417 ;
418$config_help{"POWER_CYCLE"} = << "EOF"
419 A script or command to reboot the box.
420
421 Here is a digital loggers power switch example
422 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
423
424 Here is an example to reboot a virtual box on the current host
425 with the name "Guest".
426 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
427EOF
428 ;
429$config_help{"CONSOLE"} = << "EOF"
430 The script or command that reads the console
431
432 If you use ttywatch server, something like the following would work.
433CONSOLE = nc -d localhost 3001
434
435 For a virtual machine with guest name "Guest".
436CONSOLE = virsh console Guest
437EOF
438 ;
439$config_help{"LOCALVERSION"} = << "EOF"
440 Required version ending to differentiate the test
441 from other linux builds on the system.
442EOF
443 ;
444$config_help{"REBOOT_TYPE"} = << "EOF"
445 Way to reboot the box to the test kernel.
446 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
447
448 If you specify grub, it will assume grub version 1
449 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
450 and select that target to reboot to the kernel. If this is not
451 your setup, then specify "script" and have a command or script
452 specified in REBOOT_SCRIPT to boot to the target.
453
454 The entry in /boot/grub/menu.lst must be entered in manually.
455 The test will not modify that file.
456
457 If you specify grub2, then you also need to specify both \$GRUB_MENU
458 and \$GRUB_FILE.
459
460 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
461
462 If you specify syslinux, then you may use SYSLINUX to define the syslinux
463 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
464 the syslinux install (defaults to /boot/extlinux). But you have to specify
465 SYSLINUX_LABEL to define the label to boot to for the test kernel.
466EOF
467 ;
468$config_help{"GRUB_MENU"} = << "EOF"
469 The grub title name for the test kernel to boot
470 (Only mandatory if REBOOT_TYPE = grub or grub2)
471
472 Note, ktest.pl will not update the grub menu.lst, you need to
473 manually add an option for the test. ktest.pl will search
474 the grub menu.lst for this option to find what kernel to
475 reboot into.
476
477 For example, if in the /boot/grub/menu.lst the test kernel title has:
478 title Test Kernel
479 kernel vmlinuz-test
480 GRUB_MENU = Test Kernel
481
482 For grub2, a search of \$GRUB_FILE is performed for the lines
483 that begin with "menuentry". It will not detect submenus. The
484 menu must be a non-nested menu. Add the quotes used in the menu
485 to guarantee your selection, as the first menuentry with the content
486 of \$GRUB_MENU that is found will be used.
487
488 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
489 command for the lines that begin with "title".
490EOF
491 ;
492$config_help{"GRUB_FILE"} = << "EOF"
493 If grub2 is used, the full path for the grub.cfg file is placed
494 here. Use something like /boot/grub2/grub.cfg to search.
495EOF
496 ;
497$config_help{"SYSLINUX_LABEL"} = << "EOF"
498 If syslinux is used, the label that boots the target kernel must
499 be specified with SYSLINUX_LABEL.
500EOF
501 ;
502$config_help{"REBOOT_SCRIPT"} = << "EOF"
503 A script to reboot the target into the test kernel
504 (Only mandatory if REBOOT_TYPE = script)
505EOF
506 ;
507
508sub _logit {
509 if (defined($opt{"LOG_FILE"})) {
510 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
511 print OUT @_;
512 close(OUT);
513 }
514}
515
516sub logit {
517 if (defined($opt{"LOG_FILE"})) {
518 _logit @_;
519 } else {
520 print @_;
521 }
522}
523
524sub doprint {
525 print @_;
526 _logit @_;
527}
528
529sub read_prompt {
530 my ($cancel, $prompt) = @_;
531
532 my $ans;
533
534 for (;;) {
535 if ($cancel) {
536 print "$prompt [y/n/C] ";
537 } else {
538 print "$prompt [Y/n] ";
539 }
540 $ans = <STDIN>;
541 chomp $ans;
542 if ($ans =~ /^\s*$/) {
543 if ($cancel) {
544 $ans = "c";
545 } else {
546 $ans = "y";
547 }
548 }
549 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
550 if ($cancel) {
551 last if ($ans =~ /^c$/i);
552 print "Please answer either 'y', 'n' or 'c'.\n";
553 } else {
554 print "Please answer either 'y' or 'n'.\n";
555 }
556 }
557 if ($ans =~ /^c/i) {
558 exit;
559 }
560 if ($ans !~ /^y$/i) {
561 return 0;
562 }
563 return 1;
564}
565
566sub read_yn {
567 my ($prompt) = @_;
568
569 return read_prompt 0, $prompt;
570}
571
572sub read_ync {
573 my ($prompt) = @_;
574
575 return read_prompt 1, $prompt;
576}
577
578sub get_mandatory_config {
579 my ($config) = @_;
580 my $ans;
581
582 return if (defined($opt{$config}));
583
584 if (defined($config_help{$config})) {
585 print "\n";
586 print $config_help{$config};
587 }
588
589 for (;;) {
590 print "$config = ";
591 if (defined($default{$config}) && length($default{$config})) {
592 print "\[$default{$config}\] ";
593 }
594 $ans = <STDIN>;
595 $ans =~ s/^\s*(.*\S)\s*$/$1/;
596 if ($ans =~ /^\s*$/) {
597 if ($default{$config}) {
598 $ans = $default{$config};
599 } else {
600 print "Your answer can not be blank\n";
601 next;
602 }
603 }
604 $entered_configs{$config} = ${ans};
605 last;
606 }
607}
608
609sub show_time {
610 my ($time) = @_;
611
612 my $hours = 0;
613 my $minutes = 0;
614
615 if ($time > 3600) {
616 $hours = int($time / 3600);
617 $time -= $hours * 3600;
618 }
619 if ($time > 60) {
620 $minutes = int($time / 60);
621 $time -= $minutes * 60;
622 }
623
624 if ($hours > 0) {
625 doprint "$hours hour";
626 doprint "s" if ($hours > 1);
627 doprint " ";
628 }
629
630 if ($minutes > 0) {
631 doprint "$minutes minute";
632 doprint "s" if ($minutes > 1);
633 doprint " ";
634 }
635
636 doprint "$time second";
637 doprint "s" if ($time != 1);
638}
639
640sub print_times {
641 doprint "\n";
642 if ($build_time) {
643 doprint "Build time: ";
644 show_time($build_time);
645 doprint "\n";
646 }
647 if ($install_time) {
648 doprint "Install time: ";
649 show_time($install_time);
650 doprint "\n";
651 }
652 if ($reboot_time) {
653 doprint "Reboot time: ";
654 show_time($reboot_time);
655 doprint "\n";
656 }
657 if ($test_time) {
658 doprint "Test time: ";
659 show_time($test_time);
660 doprint "\n";
661 }
662 # reset for iterations like bisect
663 $build_time = 0;
664 $install_time = 0;
665 $reboot_time = 0;
666 $test_time = 0;
667}
668
669sub get_mandatory_configs {
670 get_mandatory_config("MACHINE");
671 get_mandatory_config("BUILD_DIR");
672 get_mandatory_config("OUTPUT_DIR");
673
674 if ($newconfig) {
675 get_mandatory_config("BUILD_OPTIONS");
676 }
677
678 # options required for other than just building a kernel
679 if (!$buildonly) {
680 get_mandatory_config("POWER_CYCLE");
681 get_mandatory_config("CONSOLE");
682 }
683
684 # options required for install and more
685 if ($buildonly != 1) {
686 get_mandatory_config("SSH_USER");
687 get_mandatory_config("BUILD_TARGET");
688 get_mandatory_config("TARGET_IMAGE");
689 }
690
691 get_mandatory_config("LOCALVERSION");
692
693 return if ($buildonly);
694
695 my $rtype = $opt{"REBOOT_TYPE"};
696
697 if (!defined($rtype)) {
698 if (!defined($opt{"GRUB_MENU"})) {
699 get_mandatory_config("REBOOT_TYPE");
700 $rtype = $entered_configs{"REBOOT_TYPE"};
701 } else {
702 $rtype = "grub";
703 }
704 }
705
706 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
707 get_mandatory_config("GRUB_MENU");
708 }
709
710 if ($rtype eq "grub2") {
711 get_mandatory_config("GRUB_MENU");
712 get_mandatory_config("GRUB_FILE");
713 }
714
715 if ($rtype eq "syslinux") {
716 get_mandatory_config("SYSLINUX_LABEL");
717 }
718}
719
720sub process_variables {
721 my ($value, $remove_undef) = @_;
722 my $retval = "";
723
724 # We want to check for '\', and it is just easier
725 # to check the previous characet of '$' and not need
726 # to worry if '$' is the first character. By adding
727 # a space to $value, we can just check [^\\]\$ and
728 # it will still work.
729 $value = " $value";
730
731 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
732 my $begin = $1;
733 my $var = $2;
734 my $end = $3;
735 # append beginning of value to retval
736 $retval = "$retval$begin";
737 if (defined($variable{$var})) {
738 $retval = "$retval$variable{$var}";
739 } elsif (defined($remove_undef) && $remove_undef) {
740 # for if statements, any variable that is not defined,
741 # we simple convert to 0
742 $retval = "${retval}0";
743 } else {
744 # put back the origin piece.
745 $retval = "$retval\$\{$var\}";
746 # This could be an option that is used later, save
747 # it so we don't warn if this option is not one of
748 # ktests options.
749 $used_options{$var} = 1;
750 }
751 $value = $end;
752 }
753 $retval = "$retval$value";
754
755 # remove the space added in the beginning
756 $retval =~ s/ //;
757
758 return "$retval"
759}
760
761sub set_value {
762 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
763
764 my $prvalue = process_variables($rvalue);
765
766 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
767 $prvalue !~ /^(config_|)bisect$/ &&
768 $prvalue !~ /^build$/ &&
769 $buildonly) {
770
771 # Note if a test is something other than build, then we
772 # will need other mandatory options.
773 if ($prvalue ne "install") {
774 $buildonly = 0;
775 } else {
776 # install still limits some mandatory options.
777 $buildonly = 2;
778 }
779 }
780
781 if (defined($opt{$lvalue})) {
782 if (!$override || defined(${$overrides}{$lvalue})) {
783 my $extra = "";
784 if ($override) {
785 $extra = "In the same override section!\n";
786 }
787 die "$name: $.: Option $lvalue defined more than once!\n$extra";
788 }
789 ${$overrides}{$lvalue} = $prvalue;
790 }
791
792 $opt{$lvalue} = $prvalue;
793}
794
795sub set_eval {
796 my ($lvalue, $rvalue, $name) = @_;
797
798 my $prvalue = process_variables($rvalue);
799 my $arr;
800
801 if (defined($evals{$lvalue})) {
802 $arr = $evals{$lvalue};
803 } else {
804 $arr = [];
805 $evals{$lvalue} = $arr;
806 }
807
808 push @{$arr}, $rvalue;
809}
810
811sub set_variable {
812 my ($lvalue, $rvalue) = @_;
813
814 if ($rvalue =~ /^\s*$/) {
815 delete $variable{$lvalue};
816 } else {
817 $rvalue = process_variables($rvalue);
818 $variable{$lvalue} = $rvalue;
819 }
820}
821
822sub process_compare {
823 my ($lval, $cmp, $rval) = @_;
824
825 # remove whitespace
826
827 $lval =~ s/^\s*//;
828 $lval =~ s/\s*$//;
829
830 $rval =~ s/^\s*//;
831 $rval =~ s/\s*$//;
832
833 if ($cmp eq "==") {
834 return $lval eq $rval;
835 } elsif ($cmp eq "!=") {
836 return $lval ne $rval;
837 } elsif ($cmp eq "=~") {
838 return $lval =~ m/$rval/;
839 } elsif ($cmp eq "!~") {
840 return $lval !~ m/$rval/;
841 }
842
843 my $statement = "$lval $cmp $rval";
844 my $ret = eval $statement;
845
846 # $@ stores error of eval
847 if ($@) {
848 return -1;
849 }
850
851 return $ret;
852}
853
854sub value_defined {
855 my ($val) = @_;
856
857 return defined($variable{$2}) ||
858 defined($opt{$2});
859}
860
861my $d = 0;
862sub process_expression {
863 my ($name, $val) = @_;
864
865 my $c = $d++;
866
867 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
868 my $express = $1;
869
870 if (process_expression($name, $express)) {
871 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
872 } else {
873 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
874 }
875 }
876
877 $d--;
878 my $OR = "\\|\\|";
879 my $AND = "\\&\\&";
880
881 while ($val =~ s/^(.*?)($OR|$AND)//) {
882 my $express = $1;
883 my $op = $2;
884
885 if (process_expression($name, $express)) {
886 if ($op eq "||") {
887 return 1;
888 }
889 } else {
890 if ($op eq "&&") {
891 return 0;
892 }
893 }
894 }
895
896 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
897 my $ret = process_compare($1, $2, $3);
898 if ($ret < 0) {
899 die "$name: $.: Unable to process comparison\n";
900 }
901 return $ret;
902 }
903
904 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
905 if (defined $1) {
906 return !value_defined($2);
907 } else {
908 return value_defined($2);
909 }
910 }
911
912 if ($val =~ /^\s*0\s*$/) {
913 return 0;
914 } elsif ($val =~ /^\s*\d+\s*$/) {
915 return 1;
916 }
917
918 die ("$name: $.: Undefined content $val in if statement\n");
919}
920
921sub process_if {
922 my ($name, $value) = @_;
923
924 # Convert variables and replace undefined ones with 0
925 my $val = process_variables($value, 1);
926 my $ret = process_expression $name, $val;
927
928 return $ret;
929}
930
931sub __read_config {
932 my ($config, $current_test_num) = @_;
933
934 my $in;
935 open($in, $config) || die "can't read file $config";
936
937 my $name = $config;
938 $name =~ s,.*/(.*),$1,;
939
940 my $test_num = $$current_test_num;
941 my $default = 1;
942 my $repeat = 1;
943 my $num_tests_set = 0;
944 my $skip = 0;
945 my $rest;
946 my $line;
947 my $test_case = 0;
948 my $if = 0;
949 my $if_set = 0;
950 my $override = 0;
951
952 my %overrides;
953
954 while (<$in>) {
955
956 # ignore blank lines and comments
957 next if (/^\s*$/ || /\s*\#/);
958
959 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
960
961 my $type = $1;
962 $rest = $2;
963 $line = $2;
964
965 my $old_test_num;
966 my $old_repeat;
967 $override = 0;
968
969 if ($type eq "TEST_START") {
970
971 if ($num_tests_set) {
972 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
973 }
974
975 $old_test_num = $test_num;
976 $old_repeat = $repeat;
977
978 $test_num += $repeat;
979 $default = 0;
980 $repeat = 1;
981 } else {
982 $default = 1;
983 }
984
985 # If SKIP is anywhere in the line, the command will be skipped
986 if ($rest =~ s/\s+SKIP\b//) {
987 $skip = 1;
988 } else {
989 $test_case = 1;
990 $skip = 0;
991 }
992
993 if ($rest =~ s/\sELSE\b//) {
994 if (!$if) {
995 die "$name: $.: ELSE found with out matching IF section\n$_";
996 }
997 $if = 0;
998
999 if ($if_set) {
1000 $skip = 1;
1001 } else {
1002 $skip = 0;
1003 }
1004 }
1005
1006 if ($rest =~ s/\sIF\s+(.*)//) {
1007 if (process_if($name, $1)) {
1008 $if_set = 1;
1009 } else {
1010 $skip = 1;
1011 }
1012 $if = 1;
1013 } else {
1014 $if = 0;
1015 $if_set = 0;
1016 }
1017
1018 if (!$skip) {
1019 if ($type eq "TEST_START") {
1020 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1021 $repeat = $1;
1022 $repeat_tests{"$test_num"} = $repeat;
1023 }
1024 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1025 # DEFAULT only
1026 $override = 1;
1027 # Clear previous overrides
1028 %overrides = ();
1029 }
1030 }
1031
1032 if (!$skip && $rest !~ /^\s*$/) {
1033 die "$name: $.: Gargbage found after $type\n$_";
1034 }
1035
1036 if ($skip && $type eq "TEST_START") {
1037 $test_num = $old_test_num;
1038 $repeat = $old_repeat;
1039 }
1040
1041 } elsif (/^\s*ELSE\b(.*)$/) {
1042 if (!$if) {
1043 die "$name: $.: ELSE found with out matching IF section\n$_";
1044 }
1045 $rest = $1;
1046 if ($if_set) {
1047 $skip = 1;
1048 $rest = "";
1049 } else {
1050 $skip = 0;
1051
1052 if ($rest =~ /\sIF\s+(.*)/) {
1053 # May be a ELSE IF section.
1054 if (process_if($name, $1)) {
1055 $if_set = 1;
1056 } else {
1057 $skip = 1;
1058 }
1059 $rest = "";
1060 } else {
1061 $if = 0;
1062 }
1063 }
1064
1065 if ($rest !~ /^\s*$/) {
1066 die "$name: $.: Gargbage found after DEFAULTS\n$_";
1067 }
1068
1069 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1070
1071 next if ($skip);
1072
1073 if (!$default) {
1074 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1075 }
1076
1077 my $file = process_variables($1);
1078
1079 if ($file !~ m,^/,) {
1080 # check the path of the config file first
1081 if ($config =~ m,(.*)/,) {
1082 if (-f "$1/$file") {
1083 $file = "$1/$file";
1084 }
1085 }
1086 }
1087
1088 if ( ! -r $file ) {
1089 die "$name: $.: Can't read file $file\n$_";
1090 }
1091
1092 if (__read_config($file, \$test_num)) {
1093 $test_case = 1;
1094 }
1095
1096 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1097
1098 next if ($skip);
1099
1100 my $lvalue = $1;
1101 my $rvalue = $2;
1102
1103 if ($default || $lvalue =~ /\[\d+\]$/) {
1104 set_eval($lvalue, $rvalue, $name);
1105 } else {
1106 my $val = "$lvalue\[$test_num\]";
1107 set_eval($val, $rvalue, $name);
1108 }
1109
1110 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1111
1112 next if ($skip);
1113
1114 my $lvalue = $1;
1115 my $rvalue = $2;
1116
1117 if (!$default &&
1118 ($lvalue eq "NUM_TESTS" ||
1119 $lvalue eq "LOG_FILE" ||
1120 $lvalue eq "CLEAR_LOG")) {
1121 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1122 }
1123
1124 if ($lvalue eq "NUM_TESTS") {
1125 if ($test_num) {
1126 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1127 }
1128 if (!$default) {
1129 die "$name: $.: NUM_TESTS must be set in default section\n";
1130 }
1131 $num_tests_set = 1;
1132 }
1133
1134 if ($default || $lvalue =~ /\[\d+\]$/) {
1135 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1136 } else {
1137 my $val = "$lvalue\[$test_num\]";
1138 set_value($val, $rvalue, $override, \%overrides, $name);
1139
1140 if ($repeat > 1) {
1141 $repeats{$val} = $repeat;
1142 }
1143 }
1144 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1145 next if ($skip);
1146
1147 my $lvalue = $1;
1148 my $rvalue = $2;
1149
1150 # process config variables.
1151 # Config variables are only active while reading the
1152 # config and can be defined anywhere. They also ignore
1153 # TEST_START and DEFAULTS, but are skipped if they are in
1154 # on of these sections that have SKIP defined.
1155 # The save variable can be
1156 # defined multiple times and the new one simply overrides
1157 # the prevous one.
1158 set_variable($lvalue, $rvalue);
1159
1160 } else {
1161 die "$name: $.: Garbage found in config\n$_";
1162 }
1163 }
1164
1165 if ($test_num) {
1166 $test_num += $repeat - 1;
1167 $opt{"NUM_TESTS"} = $test_num;
1168 }
1169
1170 close($in);
1171
1172 $$current_test_num = $test_num;
1173
1174 return $test_case;
1175}
1176
1177sub get_test_case {
1178 print "What test case would you like to run?\n";
1179 print " (build, install or boot)\n";
1180 print " Other tests are available but require editing ktest.conf\n";
1181 print " (see tools/testing/ktest/sample.conf)\n";
1182 my $ans = <STDIN>;
1183 chomp $ans;
1184 $default{"TEST_TYPE"} = $ans;
1185}
1186
1187sub read_config {
1188 my ($config) = @_;
1189
1190 my $test_case;
1191 my $test_num = 0;
1192
1193 $test_case = __read_config $config, \$test_num;
1194
1195 # make sure we have all mandatory configs
1196 get_mandatory_configs;
1197
1198 # was a test specified?
1199 if (!$test_case) {
1200 print "No test case specified.\n";
1201 get_test_case;
1202 }
1203
1204 # set any defaults
1205
1206 foreach my $default (keys %default) {
1207 if (!defined($opt{$default})) {
1208 $opt{$default} = $default{$default};
1209 }
1210 }
1211
1212 if ($opt{"IGNORE_UNUSED"} == 1) {
1213 return;
1214 }
1215
1216 my %not_used;
1217
1218 # check if there are any stragglers (typos?)
1219 foreach my $option (keys %opt) {
1220 my $op = $option;
1221 # remove per test labels.
1222 $op =~ s/\[.*\]//;
1223 if (!exists($option_map{$op}) &&
1224 !exists($default{$op}) &&
1225 !exists($used_options{$op})) {
1226 $not_used{$op} = 1;
1227 }
1228 }
1229
1230 if (%not_used) {
1231 my $s = "s are";
1232 $s = " is" if (keys %not_used == 1);
1233 print "The following option$s not used; could be a typo:\n";
1234 foreach my $option (keys %not_used) {
1235 print "$option\n";
1236 }
1237 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1238 if (!read_yn "Do you want to continue?") {
1239 exit -1;
1240 }
1241 }
1242}
1243
1244sub __eval_option {
1245 my ($name, $option, $i) = @_;
1246
1247 # Add space to evaluate the character before $
1248 $option = " $option";
1249 my $retval = "";
1250 my $repeated = 0;
1251 my $parent = 0;
1252
1253 foreach my $test (keys %repeat_tests) {
1254 if ($i >= $test &&
1255 $i < $test + $repeat_tests{$test}) {
1256
1257 $repeated = 1;
1258 $parent = $test;
1259 last;
1260 }
1261 }
1262
1263 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1264 my $start = $1;
1265 my $var = $2;
1266 my $end = $3;
1267
1268 # Append beginning of line
1269 $retval = "$retval$start";
1270
1271 # If the iteration option OPT[$i] exists, then use that.
1272 # otherwise see if the default OPT (without [$i]) exists.
1273
1274 my $o = "$var\[$i\]";
1275 my $parento = "$var\[$parent\]";
1276
1277 # If a variable contains itself, use the default var
1278 if (($var eq $name) && defined($opt{$var})) {
1279 $o = $opt{$var};
1280 $retval = "$retval$o";
1281 } elsif (defined($opt{$o})) {
1282 $o = $opt{$o};
1283 $retval = "$retval$o";
1284 } elsif ($repeated && defined($opt{$parento})) {
1285 $o = $opt{$parento};
1286 $retval = "$retval$o";
1287 } elsif (defined($opt{$var})) {
1288 $o = $opt{$var};
1289 $retval = "$retval$o";
1290 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1291 # special option KERNEL_VERSION uses kernel version
1292 get_version();
1293 $retval = "$retval$version";
1294 } else {
1295 $retval = "$retval\$\{$var\}";
1296 }
1297
1298 $option = $end;
1299 }
1300
1301 $retval = "$retval$option";
1302
1303 $retval =~ s/^ //;
1304
1305 return $retval;
1306}
1307
1308sub process_evals {
1309 my ($name, $option, $i) = @_;
1310
1311 my $option_name = "$name\[$i\]";
1312 my $ev;
1313
1314 my $old_option = $option;
1315
1316 if (defined($evals{$option_name})) {
1317 $ev = $evals{$option_name};
1318 } elsif (defined($evals{$name})) {
1319 $ev = $evals{$name};
1320 } else {
1321 return $option;
1322 }
1323
1324 for my $e (@{$ev}) {
1325 eval "\$option =~ $e";
1326 }
1327
1328 if ($option ne $old_option) {
1329 doprint("$name changed from '$old_option' to '$option'\n");
1330 }
1331
1332 return $option;
1333}
1334
1335sub eval_option {
1336 my ($name, $option, $i) = @_;
1337
1338 my $prev = "";
1339
1340 # Since an option can evaluate to another option,
1341 # keep iterating until we do not evaluate any more
1342 # options.
1343 my $r = 0;
1344 while ($prev ne $option) {
1345 # Check for recursive evaluations.
1346 # 100 deep should be more than enough.
1347 if ($r++ > 100) {
1348 die "Over 100 evaluations accurred with $option\n" .
1349 "Check for recursive variables\n";
1350 }
1351 $prev = $option;
1352 $option = __eval_option($name, $option, $i);
1353 }
1354
1355 $option = process_evals($name, $option, $i);
1356
1357 return $option;
1358}
1359
1360sub run_command;
1361sub start_monitor;
1362sub end_monitor;
1363sub wait_for_monitor;
1364
1365sub reboot {
1366 my ($time) = @_;
1367 my $powercycle = 0;
1368
1369 # test if the machine can be connected to within a few seconds
1370 my $stat = run_ssh("echo check machine status", $connect_timeout);
1371 if (!$stat) {
1372 doprint("power cycle\n");
1373 $powercycle = 1;
1374 }
1375
1376 if ($powercycle) {
1377 run_command "$power_cycle";
1378
1379 start_monitor;
1380 # flush out current monitor
1381 # May contain the reboot success line
1382 wait_for_monitor 1;
1383
1384 } else {
1385 # Make sure everything has been written to disk
1386 run_ssh("sync");
1387
1388 if (defined($time)) {
1389 start_monitor;
1390 # flush out current monitor
1391 # May contain the reboot success line
1392 wait_for_monitor 1;
1393 }
1394
1395 # try to reboot normally
1396 if (run_command $reboot) {
1397 if (defined($powercycle_after_reboot)) {
1398 sleep $powercycle_after_reboot;
1399 run_command "$power_cycle";
1400 }
1401 } else {
1402 # nope? power cycle it.
1403 run_command "$power_cycle";
1404 }
1405 }
1406
1407 if (defined($time)) {
1408
1409 # We only want to get to the new kernel, don't fail
1410 # if we stumble over a call trace.
1411 my $save_ignore_errors = $ignore_errors;
1412 $ignore_errors = 1;
1413
1414 # Look for the good kernel to boot
1415 if (wait_for_monitor($time, "Linux version")) {
1416 # reboot got stuck?
1417 doprint "Reboot did not finish. Forcing power cycle\n";
1418 run_command "$power_cycle";
1419 }
1420
1421 $ignore_errors = $save_ignore_errors;
1422
1423 # Still need to wait for the reboot to finish
1424 wait_for_monitor($time, $reboot_success_line);
1425
1426 end_monitor;
1427 }
1428}
1429
1430sub reboot_to_good {
1431 my ($time) = @_;
1432
1433 if (defined($switch_to_good)) {
1434 run_command $switch_to_good;
1435 }
1436
1437 reboot $time;
1438}
1439
1440sub do_not_reboot {
1441 my $i = $iteration;
1442
1443 return $test_type eq "build" || $no_reboot ||
1444 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1445 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1446 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1447}
1448
1449my $in_die = 0;
1450
1451sub get_test_name() {
1452 my $name;
1453
1454 if (defined($test_name)) {
1455 $name = "$test_name:$test_type";
1456 } else {
1457 $name = $test_type;
1458 }
1459 return $name;
1460}
1461
1462sub dodie {
1463
1464 # avoid recusion
1465 return if ($in_die);
1466 $in_die = 1;
1467
1468 my $i = $iteration;
1469
1470 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1471
1472 if ($reboot_on_error && !do_not_reboot) {
1473
1474 doprint "REBOOTING\n";
1475 reboot_to_good;
1476
1477 } elsif ($poweroff_on_error && defined($power_off)) {
1478 doprint "POWERING OFF\n";
1479 `$power_off`;
1480 }
1481
1482 if (defined($opt{"LOG_FILE"})) {
1483 print " See $opt{LOG_FILE} for more info.\n";
1484 }
1485
1486 if ($email_on_error) {
1487 my $name = get_test_name;
1488 send_email("KTEST: critical failure for test $i [$name]",
1489 "Your test started at $script_start_time has failed with:\n@_\n");
1490 }
1491
1492 if ($monitor_cnt) {
1493 # restore terminal settings
1494 system("stty $stty_orig");
1495 }
1496
1497 if (defined($post_test)) {
1498 run_command $post_test;
1499 }
1500
1501 die @_, "\n";
1502}
1503
1504sub create_pty {
1505 my ($ptm, $pts) = @_;
1506 my $tmp;
1507 my $TIOCSPTLCK = 0x40045431;
1508 my $TIOCGPTN = 0x80045430;
1509
1510 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1511 dodie "Cant open /dev/ptmx";
1512
1513 # unlockpt()
1514 $tmp = pack("i", 0);
1515 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1516 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1517
1518 # ptsname()
1519 ioctl($ptm, $TIOCGPTN, $tmp) or
1520 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1521 $tmp = unpack("i", $tmp);
1522
1523 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1524 dodie "Can't open /dev/pts/$tmp";
1525}
1526
1527sub exec_console {
1528 my ($ptm, $pts) = @_;
1529
1530 close($ptm);
1531
1532 close(\*STDIN);
1533 close(\*STDOUT);
1534 close(\*STDERR);
1535
1536 open(\*STDIN, '<&', $pts);
1537 open(\*STDOUT, '>&', $pts);
1538 open(\*STDERR, '>&', $pts);
1539
1540 close($pts);
1541
1542 exec $console or
1543 dodie "Can't open console $console";
1544}
1545
1546sub open_console {
1547 my ($ptm) = @_;
1548 my $pts = \*PTSFD;
1549 my $pid;
1550
1551 # save terminal settings
1552 $stty_orig = `stty -g`;
1553
1554 # place terminal in cbreak mode so that stdin can be read one character at
1555 # a time without having to wait for a newline
1556 system("stty -icanon -echo -icrnl");
1557
1558 create_pty($ptm, $pts);
1559
1560 $pid = fork;
1561
1562 if (!$pid) {
1563 # child
1564 exec_console($ptm, $pts)
1565 }
1566
1567 # parent
1568 close($pts);
1569
1570 return $pid;
1571
1572 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1573}
1574
1575sub close_console {
1576 my ($fp, $pid) = @_;
1577
1578 doprint "kill child process $pid\n";
1579 kill $close_console_signal, $pid;
1580
1581 doprint "wait for child process $pid to exit\n";
1582 waitpid($pid, 0);
1583
1584 print "closing!\n";
1585 close($fp);
1586
1587 # restore terminal settings
1588 system("stty $stty_orig");
1589}
1590
1591sub start_monitor {
1592 if ($monitor_cnt++) {
1593 return;
1594 }
1595 $monitor_fp = \*MONFD;
1596 $monitor_pid = open_console $monitor_fp;
1597
1598 return;
1599
1600 open(MONFD, "Stop perl from warning about single use of MONFD");
1601}
1602
1603sub end_monitor {
1604 return if (!defined $console);
1605 if (--$monitor_cnt) {
1606 return;
1607 }
1608 close_console($monitor_fp, $monitor_pid);
1609}
1610
1611sub wait_for_monitor {
1612 my ($time, $stop) = @_;
1613 my $full_line = "";
1614 my $line;
1615 my $booted = 0;
1616 my $start_time = time;
1617 my $skip_call_trace = 0;
1618 my $bug = 0;
1619 my $bug_ignored = 0;
1620 my $now;
1621
1622 doprint "** Wait for monitor to settle down **\n";
1623
1624 # read the monitor and wait for the system to calm down
1625 while (!$booted) {
1626 $line = wait_for_input($monitor_fp, $time);
1627 last if (!defined($line));
1628 print "$line";
1629 $full_line .= $line;
1630
1631 if (defined($stop) && $full_line =~ /$stop/) {
1632 doprint "wait for monitor detected $stop\n";
1633 $booted = 1;
1634 }
1635
1636 if ($full_line =~ /\[ backtrace testing \]/) {
1637 $skip_call_trace = 1;
1638 }
1639
1640 if ($full_line =~ /call trace:/i) {
1641 if (!$bug && !$skip_call_trace) {
1642 if ($ignore_errors) {
1643 $bug_ignored = 1;
1644 } else {
1645 $bug = 1;
1646 }
1647 }
1648 }
1649
1650 if ($full_line =~ /\[ end of backtrace testing \]/) {
1651 $skip_call_trace = 0;
1652 }
1653
1654 if ($full_line =~ /Kernel panic -/) {
1655 $bug = 1;
1656 }
1657
1658 if ($line =~ /\n/) {
1659 $full_line = "";
1660 }
1661 $now = time;
1662 if ($now - $start_time >= $max_monitor_wait) {
1663 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1664 return 1;
1665 }
1666 }
1667 print "** Monitor flushed **\n";
1668
1669 # if stop is defined but wasn't hit, return error
1670 # used by reboot (which wants to see a reboot)
1671 if (defined($stop) && !$booted) {
1672 $bug = 1;
1673 }
1674 return $bug;
1675}
1676
1677sub save_logs {
1678 my ($result, $basedir) = @_;
1679 my @t = localtime;
1680 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1681 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1682
1683 my $type = $build_type;
1684 if ($type =~ /useconfig/) {
1685 $type = "useconfig";
1686 }
1687
1688 my $dir = "$machine-$test_type-$type-$result-$date";
1689
1690 $dir = "$basedir/$dir";
1691
1692 if (!-d $dir) {
1693 mkpath($dir) or
1694 dodie "can't create $dir";
1695 }
1696
1697 my %files = (
1698 "config" => $output_config,
1699 "buildlog" => $buildlog,
1700 "dmesg" => $dmesg,
1701 "testlog" => $testlog,
1702 );
1703
1704 while (my ($name, $source) = each(%files)) {
1705 if (-f "$source") {
1706 cp "$source", "$dir/$name" or
1707 dodie "failed to copy $source";
1708 }
1709 }
1710
1711 doprint "*** Saved info to $dir ***\n";
1712}
1713
1714sub fail {
1715
1716 if ($die_on_failure) {
1717 dodie @_;
1718 }
1719
1720 doprint "FAILED\n";
1721
1722 my $i = $iteration;
1723
1724 # no need to reboot for just building.
1725 if (!do_not_reboot) {
1726 doprint "REBOOTING\n";
1727 reboot_to_good $sleep_time;
1728 }
1729
1730 my $name = "";
1731
1732 if (defined($test_name)) {
1733 $name = " ($test_name)";
1734 }
1735
1736 print_times;
1737
1738 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1739 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1740 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1741 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1742 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1743
1744 if (defined($store_failures)) {
1745 save_logs "fail", $store_failures;
1746 }
1747
1748 if (defined($post_test)) {
1749 run_command $post_test;
1750 }
1751
1752 return 1;
1753}
1754
1755sub run_command {
1756 my ($command, $redirect, $timeout) = @_;
1757 my $start_time;
1758 my $end_time;
1759 my $dolog = 0;
1760 my $dord = 0;
1761 my $dostdout = 0;
1762 my $pid;
1763 my $command_orig = $command;
1764
1765 $command =~ s/\$SSH_USER/$ssh_user/g;
1766 $command =~ s/\$MACHINE/$machine/g;
1767
1768 doprint("$command ... ");
1769 $start_time = time;
1770
1771 $pid = open(CMD, "$command 2>&1 |") or
1772 (fail "unable to exec $command" and return 0);
1773
1774 if (defined($opt{"LOG_FILE"})) {
1775 open(LOG, ">>$opt{LOG_FILE}") or
1776 dodie "failed to write to log";
1777 $dolog = 1;
1778 }
1779
1780 if (defined($redirect)) {
1781 if ($redirect eq 1) {
1782 $dostdout = 1;
1783 # Have the output of the command on its own line
1784 doprint "\n";
1785 } else {
1786 open (RD, ">$redirect") or
1787 dodie "failed to write to redirect $redirect";
1788 $dord = 1;
1789 }
1790 }
1791
1792 my $hit_timeout = 0;
1793
1794 while (1) {
1795 my $fp = \*CMD;
1796 if (defined($timeout)) {
1797 doprint "timeout = $timeout\n";
1798 }
1799 my $line = wait_for_input($fp, $timeout);
1800 if (!defined($line)) {
1801 my $now = time;
1802 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1803 doprint "Hit timeout of $timeout, killing process\n";
1804 $hit_timeout = 1;
1805 kill 9, $pid;
1806 }
1807 last;
1808 }
1809 print LOG $line if ($dolog);
1810 print RD $line if ($dord);
1811 print $line if ($dostdout);
1812 }
1813
1814 waitpid($pid, 0);
1815 # shift 8 for real exit status
1816 $run_command_status = $? >> 8;
1817
1818 if ($command_orig eq $default{REBOOT} &&
1819 $run_command_status == $reboot_return_code) {
1820 $run_command_status = 0;
1821 }
1822
1823 close(CMD);
1824 close(LOG) if ($dolog);
1825 close(RD) if ($dord);
1826
1827 $end_time = time;
1828 my $delta = $end_time - $start_time;
1829
1830 if ($delta == 1) {
1831 doprint "[1 second] ";
1832 } else {
1833 doprint "[$delta seconds] ";
1834 }
1835
1836 if ($hit_timeout) {
1837 $run_command_status = 1;
1838 }
1839
1840 if ($run_command_status) {
1841 doprint "FAILED!\n";
1842 } else {
1843 doprint "SUCCESS\n";
1844 }
1845
1846 return !$run_command_status;
1847}
1848
1849sub run_ssh {
1850 my ($cmd, $timeout) = @_;
1851 my $cp_exec = $ssh_exec;
1852
1853 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1854 return run_command "$cp_exec", undef , $timeout;
1855}
1856
1857sub run_scp {
1858 my ($src, $dst, $cp_scp) = @_;
1859
1860 $cp_scp =~ s/\$SRC_FILE/$src/g;
1861 $cp_scp =~ s/\$DST_FILE/$dst/g;
1862
1863 return run_command "$cp_scp";
1864}
1865
1866sub run_scp_install {
1867 my ($src, $dst) = @_;
1868
1869 my $cp_scp = $scp_to_target_install;
1870
1871 return run_scp($src, $dst, $cp_scp);
1872}
1873
1874sub run_scp_mod {
1875 my ($src, $dst) = @_;
1876
1877 my $cp_scp = $scp_to_target;
1878
1879 return run_scp($src, $dst, $cp_scp);
1880}
1881
1882sub _get_grub_index {
1883
1884 my ($command, $target, $skip) = @_;
1885
1886 return if (defined($grub_number) && defined($last_grub_menu) &&
1887 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1888 $last_machine eq $machine);
1889
1890 doprint "Find $reboot_type menu ... ";
1891 $grub_number = -1;
1892
1893 my $ssh_grub = $ssh_exec;
1894 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1895
1896 open(IN, "$ssh_grub |")
1897 or dodie "unable to execute $command";
1898
1899 my $found = 0;
1900
1901 while (<IN>) {
1902 if (/$target/) {
1903 $grub_number++;
1904 $found = 1;
1905 last;
1906 } elsif (/$skip/) {
1907 $grub_number++;
1908 }
1909 }
1910 close(IN);
1911
1912 dodie "Could not find '$grub_menu' through $command on $machine"
1913 if (!$found);
1914 doprint "$grub_number\n";
1915 $last_grub_menu = $grub_menu;
1916 $last_machine = $machine;
1917}
1918
1919sub get_grub_index {
1920
1921 my $command;
1922 my $target;
1923 my $skip;
1924 my $grub_menu_qt;
1925
1926 if ($reboot_type !~ /^grub/) {
1927 return;
1928 }
1929
1930 $grub_menu_qt = quotemeta($grub_menu);
1931
1932 if ($reboot_type eq "grub") {
1933 $command = "cat /boot/grub/menu.lst";
1934 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
1935 $skip = '^\s*title\s';
1936 } elsif ($reboot_type eq "grub2") {
1937 $command = "cat $grub_file";
1938 $target = '^menuentry.*' . $grub_menu_qt;
1939 $skip = '^menuentry\s|^submenu\s';
1940 } elsif ($reboot_type eq "grub2bls") {
1941 $command = $grub_bls_get;
1942 $target = '^title=.*' . $grub_menu_qt;
1943 $skip = '^title=';
1944 } else {
1945 return;
1946 }
1947
1948 _get_grub_index($command, $target, $skip);
1949}
1950
1951sub wait_for_input
1952{
1953 my ($fp, $time) = @_;
1954 my $start_time;
1955 my $rin;
1956 my $rout;
1957 my $nr;
1958 my $buf;
1959 my $line;
1960 my $ch;
1961
1962 if (!defined($time)) {
1963 $time = $timeout;
1964 }
1965
1966 $rin = '';
1967 vec($rin, fileno($fp), 1) = 1;
1968 vec($rin, fileno(\*STDIN), 1) = 1;
1969
1970 $start_time = time;
1971
1972 while (1) {
1973 $nr = select($rout=$rin, undef, undef, $time);
1974
1975 last if ($nr <= 0);
1976
1977 # copy data from stdin to the console
1978 if (vec($rout, fileno(\*STDIN), 1) == 1) {
1979 $nr = sysread(\*STDIN, $buf, 1000);
1980 syswrite($fp, $buf, $nr) if ($nr > 0);
1981 }
1982
1983 # The timeout is based on time waiting for the fp data
1984 if (vec($rout, fileno($fp), 1) != 1) {
1985 last if (defined($time) && (time - $start_time > $time));
1986 next;
1987 }
1988
1989 $line = "";
1990
1991 # try to read one char at a time
1992 while (sysread $fp, $ch, 1) {
1993 $line .= $ch;
1994 last if ($ch eq "\n");
1995 }
1996
1997 last if (!length($line));
1998
1999 return $line;
2000 }
2001 return undef;
2002}
2003
2004sub reboot_to {
2005 if (defined($switch_to_test)) {
2006 run_command $switch_to_test;
2007 }
2008
2009 if ($reboot_type eq "grub") {
2010 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2011 } elsif ($reboot_type eq "grub2") {
2012 run_ssh "$grub_reboot $grub_number";
2013 } elsif ($reboot_type eq "syslinux") {
2014 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2015 } elsif (defined $reboot_script) {
2016 run_command "$reboot_script";
2017 }
2018 reboot;
2019}
2020
2021sub get_sha1 {
2022 my ($commit) = @_;
2023
2024 doprint "git rev-list --max-count=1 $commit ... ";
2025 my $sha1 = `git rev-list --max-count=1 $commit`;
2026 my $ret = $?;
2027
2028 logit $sha1;
2029
2030 if ($ret) {
2031 doprint "FAILED\n";
2032 dodie "Failed to get git $commit";
2033 }
2034
2035 print "SUCCESS\n";
2036
2037 chomp $sha1;
2038
2039 return $sha1;
2040}
2041
2042sub monitor {
2043 my $booted = 0;
2044 my $bug = 0;
2045 my $bug_ignored = 0;
2046 my $skip_call_trace = 0;
2047 my $loops;
2048
2049 my $start_time = time;
2050
2051 wait_for_monitor 5;
2052
2053 my $line;
2054 my $full_line = "";
2055
2056 open(DMESG, "> $dmesg") or
2057 dodie "unable to write to $dmesg";
2058
2059 reboot_to;
2060
2061 my $success_start;
2062 my $failure_start;
2063 my $monitor_start = time;
2064 my $done = 0;
2065 my $version_found = 0;
2066
2067 while (!$done) {
2068
2069 if ($bug && defined($stop_after_failure) &&
2070 $stop_after_failure >= 0) {
2071 my $time = $stop_after_failure - (time - $failure_start);
2072 $line = wait_for_input($monitor_fp, $time);
2073 if (!defined($line)) {
2074 doprint "bug timed out after $booted_timeout seconds\n";
2075 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2076 last;
2077 }
2078 } elsif ($booted) {
2079 $line = wait_for_input($monitor_fp, $booted_timeout);
2080 if (!defined($line)) {
2081 my $s = $booted_timeout == 1 ? "" : "s";
2082 doprint "Successful boot found: break after $booted_timeout second$s\n";
2083 last;
2084 }
2085 } else {
2086 $line = wait_for_input($monitor_fp);
2087 if (!defined($line)) {
2088 my $s = $timeout == 1 ? "" : "s";
2089 doprint "Timed out after $timeout second$s\n";
2090 last;
2091 }
2092 }
2093
2094 doprint $line;
2095 print DMESG $line;
2096
2097 # we are not guaranteed to get a full line
2098 $full_line .= $line;
2099
2100 if ($full_line =~ /$success_line/) {
2101 $booted = 1;
2102 $success_start = time;
2103 }
2104
2105 if ($booted && defined($stop_after_success) &&
2106 $stop_after_success >= 0) {
2107 my $now = time;
2108 if ($now - $success_start >= $stop_after_success) {
2109 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2110 last;
2111 }
2112 }
2113
2114 if ($full_line =~ /\[ backtrace testing \]/) {
2115 $skip_call_trace = 1;
2116 }
2117
2118 if ($full_line =~ /call trace:/i) {
2119 if (!$bug && !$skip_call_trace) {
2120 if ($ignore_errors) {
2121 $bug_ignored = 1;
2122 } else {
2123 $bug = 1;
2124 $failure_start = time;
2125 }
2126 }
2127 }
2128
2129 if ($bug && defined($stop_after_failure) &&
2130 $stop_after_failure >= 0) {
2131 my $now = time;
2132 if ($now - $failure_start >= $stop_after_failure) {
2133 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2134 last;
2135 }
2136 }
2137
2138 if ($full_line =~ /\[ end of backtrace testing \]/) {
2139 $skip_call_trace = 0;
2140 }
2141
2142 if ($full_line =~ /Kernel panic -/) {
2143 $failure_start = time;
2144 $bug = 1;
2145 }
2146
2147 # Detect triple faults by testing the banner
2148 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2149 if ($1 eq $version) {
2150 $version_found = 1;
2151 } elsif ($version_found && $detect_triplefault) {
2152 # We already booted into the kernel we are testing,
2153 # but now we booted into another kernel?
2154 # Consider this a triple fault.
2155 doprint "Already booted in Linux kernel $version, but now\n";
2156 doprint "we booted into Linux kernel $1.\n";
2157 doprint "Assuming that this is a triple fault.\n";
2158 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2159 last;
2160 }
2161 }
2162
2163 if ($line =~ /\n/) {
2164 $full_line = "";
2165 }
2166
2167 if ($stop_test_after > 0 && !$booted && !$bug) {
2168 if (time - $monitor_start > $stop_test_after) {
2169 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2170 $done = 1;
2171 }
2172 }
2173 }
2174
2175 my $end_time = time;
2176 $reboot_time = $end_time - $start_time;
2177
2178 close(DMESG);
2179
2180 if ($bug) {
2181 return 0 if ($in_bisect);
2182 fail "failed - got a bug report" and return 0;
2183 }
2184
2185 if (!$booted) {
2186 return 0 if ($in_bisect);
2187 fail "failed - never got a boot prompt." and return 0;
2188 }
2189
2190 if ($bug_ignored) {
2191 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2192 }
2193
2194 return 1;
2195}
2196
2197sub eval_kernel_version {
2198 my ($option) = @_;
2199
2200 $option =~ s/\$KERNEL_VERSION/$version/g;
2201
2202 return $option;
2203}
2204
2205sub do_post_install {
2206
2207 return if (!defined($post_install));
2208
2209 my $cp_post_install = eval_kernel_version $post_install;
2210 run_command "$cp_post_install" or
2211 dodie "Failed to run post install";
2212}
2213
2214# Sometimes the reboot fails, and will hang. We try to ssh to the box
2215# and if we fail, we force another reboot, that should powercycle it.
2216sub test_booted {
2217 if (!run_ssh "echo testing connection") {
2218 reboot $sleep_time;
2219 }
2220}
2221
2222sub install {
2223
2224 return if ($no_install);
2225
2226 my $start_time = time;
2227
2228 if (defined($pre_install)) {
2229 my $cp_pre_install = eval_kernel_version $pre_install;
2230 run_command "$cp_pre_install" or
2231 dodie "Failed to run pre install";
2232 }
2233
2234 my $cp_target = eval_kernel_version $target_image;
2235
2236 test_booted;
2237
2238 run_scp_install "$outputdir/$build_target", "$cp_target" or
2239 dodie "failed to copy image";
2240
2241 my $install_mods = 0;
2242
2243 # should we process modules?
2244 $install_mods = 0;
2245 open(IN, "$output_config") or dodie("Can't read config file");
2246 while (<IN>) {
2247 if (/CONFIG_MODULES(=y)?/) {
2248 if (defined($1)) {
2249 $install_mods = 1;
2250 last;
2251 }
2252 }
2253 }
2254 close(IN);
2255
2256 if (!$install_mods) {
2257 do_post_install;
2258 doprint "No modules needed\n";
2259 my $end_time = time;
2260 $install_time = $end_time - $start_time;
2261 return;
2262 }
2263
2264 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2265 dodie "Failed to install modules";
2266
2267 my $modlib = "/lib/modules/$version";
2268 my $modtar = "ktest-mods.tar.bz2";
2269
2270 run_ssh "rm -rf $modlib" or
2271 dodie "failed to remove old mods: $modlib";
2272
2273 # would be nice if scp -r did not follow symbolic links
2274 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2275 dodie "making tarball";
2276
2277 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2278 dodie "failed to copy modules";
2279
2280 unlink "$tmpdir/$modtar";
2281
2282 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2283 dodie "failed to tar modules";
2284
2285 run_ssh "rm -f /tmp/$modtar";
2286
2287 do_post_install;
2288
2289 my $end_time = time;
2290 $install_time = $end_time - $start_time;
2291}
2292
2293sub get_version {
2294 # get the release name
2295 return if ($have_version);
2296 doprint "$make kernelrelease ... ";
2297 $version = `$make -s kernelrelease | tail -1`;
2298 chomp($version);
2299 doprint "$version\n";
2300 $have_version = 1;
2301}
2302
2303sub start_monitor_and_install {
2304 # Make sure the stable kernel has finished booting
2305
2306 # Install bisects, don't need console
2307 if (defined $console) {
2308 start_monitor;
2309 wait_for_monitor 5;
2310 end_monitor;
2311 }
2312
2313 get_grub_index;
2314 get_version;
2315 install;
2316
2317 start_monitor if (defined $console);
2318 return monitor;
2319}
2320
2321my $check_build_re = ".*:.*(warning|error|Error):.*";
2322my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2323
2324sub process_warning_line {
2325 my ($line) = @_;
2326
2327 chomp $line;
2328
2329 # for distcc heterogeneous systems, some compilers
2330 # do things differently causing warning lines
2331 # to be slightly different. This makes an attempt
2332 # to fixe those issues.
2333
2334 # chop off the index into the line
2335 # using distcc, some compilers give different indexes
2336 # depending on white space
2337 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2338
2339 # Some compilers use UTF-8 extended for quotes and some don't.
2340 $line =~ s/$utf8_quote/'/g;
2341
2342 return $line;
2343}
2344
2345# Read buildlog and check against warnings file for any
2346# new warnings.
2347#
2348# Returns 1 if OK
2349# 0 otherwise
2350sub check_buildlog {
2351 return 1 if (!defined $warnings_file);
2352
2353 my %warnings_list;
2354
2355 # Failed builds should not reboot the target
2356 my $save_no_reboot = $no_reboot;
2357 $no_reboot = 1;
2358
2359 if (-f $warnings_file) {
2360 open(IN, $warnings_file) or
2361 dodie "Error opening $warnings_file";
2362
2363 while (<IN>) {
2364 if (/$check_build_re/) {
2365 my $warning = process_warning_line $_;
2366
2367 $warnings_list{$warning} = 1;
2368 }
2369 }
2370 close(IN);
2371 }
2372
2373 # If warnings file didn't exist, and WARNINGS_FILE exist,
2374 # then we fail on any warning!
2375
2376 open(IN, $buildlog) or dodie "Can't open $buildlog";
2377 while (<IN>) {
2378 if (/$check_build_re/) {
2379 my $warning = process_warning_line $_;
2380
2381 if (!defined $warnings_list{$warning}) {
2382 fail "New warning found (not in $warnings_file)\n$_\n";
2383 $no_reboot = $save_no_reboot;
2384 return 0;
2385 }
2386 }
2387 }
2388 $no_reboot = $save_no_reboot;
2389 close(IN);
2390}
2391
2392sub check_patch_buildlog {
2393 my ($patch) = @_;
2394
2395 my @files = `git show $patch | diffstat -l`;
2396
2397 foreach my $file (@files) {
2398 chomp $file;
2399 }
2400
2401 open(IN, "git show $patch |") or
2402 dodie "failed to show $patch";
2403 while (<IN>) {
2404 if (m,^--- a/(.*),) {
2405 chomp $1;
2406 $files[$#files] = $1;
2407 }
2408 }
2409 close(IN);
2410
2411 open(IN, $buildlog) or dodie "Can't open $buildlog";
2412 while (<IN>) {
2413 if (/^\s*(.*?):.*(warning|error)/) {
2414 my $err = $1;
2415 foreach my $file (@files) {
2416 my $fullpath = "$builddir/$file";
2417 if ($file eq $err || $fullpath eq $err) {
2418 fail "$file built with warnings" and return 0;
2419 }
2420 }
2421 }
2422 }
2423 close(IN);
2424
2425 return 1;
2426}
2427
2428sub apply_min_config {
2429 my $outconfig = "$output_config.new";
2430
2431 # Read the config file and remove anything that
2432 # is in the force_config hash (from minconfig and others)
2433 # then add the force config back.
2434
2435 doprint "Applying minimum configurations into $output_config.new\n";
2436
2437 open (OUT, ">$outconfig") or
2438 dodie "Can't create $outconfig";
2439
2440 if (-f $output_config) {
2441 open (IN, $output_config) or
2442 dodie "Failed to open $output_config";
2443 while (<IN>) {
2444 if (/^(# )?(CONFIG_[^\s=]*)/) {
2445 next if (defined($force_config{$2}));
2446 }
2447 print OUT;
2448 }
2449 close IN;
2450 }
2451 foreach my $config (keys %force_config) {
2452 print OUT "$force_config{$config}\n";
2453 }
2454 close OUT;
2455
2456 run_command "mv $outconfig $output_config";
2457}
2458
2459sub make_oldconfig {
2460
2461 my @force_list = keys %force_config;
2462
2463 if ($#force_list >= 0) {
2464 apply_min_config;
2465 }
2466
2467 if (!run_command "$make olddefconfig") {
2468 # Perhaps olddefconfig doesn't exist in this version of the kernel
2469 # try oldnoconfig
2470 doprint "olddefconfig failed, trying make oldnoconfig\n";
2471 if (!run_command "$make oldnoconfig") {
2472 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2473 # try a yes '' | oldconfig
2474 run_command "yes '' | $make oldconfig" or
2475 dodie "failed make config oldconfig";
2476 }
2477 }
2478}
2479
2480# read a config file and use this to force new configs.
2481sub load_force_config {
2482 my ($config) = @_;
2483
2484 doprint "Loading force configs from $config\n";
2485 open(IN, $config) or
2486 dodie "failed to read $config";
2487 while (<IN>) {
2488 chomp;
2489 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2490 $force_config{$1} = $_;
2491 } elsif (/^# (CONFIG_\S*) is not set/) {
2492 $force_config{$1} = $_;
2493 }
2494 }
2495 close IN;
2496}
2497
2498sub build {
2499 my ($type) = @_;
2500
2501 unlink $buildlog;
2502
2503 my $start_time = time;
2504
2505 # Failed builds should not reboot the target
2506 my $save_no_reboot = $no_reboot;
2507 $no_reboot = 1;
2508
2509 # Calculate a new version from here.
2510 $have_version = 0;
2511
2512 if (defined($pre_build)) {
2513 my $ret = run_command $pre_build;
2514 if (!$ret && defined($pre_build_die) &&
2515 $pre_build_die) {
2516 dodie "failed to pre_build\n";
2517 }
2518 }
2519
2520 if ($type =~ /^useconfig:(.*)/) {
2521 run_command "cp $1 $output_config" or
2522 dodie "could not copy $1 to .config";
2523
2524 $type = "oldconfig";
2525 }
2526
2527 # old config can ask questions
2528 if ($type eq "oldconfig") {
2529 $type = "olddefconfig";
2530
2531 # allow for empty configs
2532 run_command "touch $output_config";
2533
2534 if (!$noclean) {
2535 run_command "mv $output_config $outputdir/config_temp" or
2536 dodie "moving .config";
2537
2538 run_command "$make mrproper" or dodie "make mrproper";
2539
2540 run_command "mv $outputdir/config_temp $output_config" or
2541 dodie "moving config_temp";
2542 }
2543
2544 } elsif (!$noclean) {
2545 unlink "$output_config";
2546 run_command "$make mrproper" or
2547 dodie "make mrproper";
2548 }
2549
2550 # add something to distinguish this build
2551 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2552 print OUT "$localversion\n";
2553 close(OUT);
2554
2555 if (defined($minconfig)) {
2556 load_force_config($minconfig);
2557 }
2558
2559 if ($type ne "olddefconfig") {
2560 run_command "$make $type" or
2561 dodie "failed make config";
2562 }
2563 # Run old config regardless, to enforce min configurations
2564 make_oldconfig;
2565
2566 my $build_ret = run_command "$make $build_options", $buildlog;
2567
2568 if (defined($post_build)) {
2569 # Because a post build may change the kernel version
2570 # do it now.
2571 get_version;
2572 my $ret = run_command $post_build;
2573 if (!$ret && defined($post_build_die) &&
2574 $post_build_die) {
2575 dodie "failed to post_build\n";
2576 }
2577 }
2578
2579 if (!$build_ret) {
2580 # bisect may need this to pass
2581 if ($in_bisect) {
2582 $no_reboot = $save_no_reboot;
2583 return 0;
2584 }
2585 fail "failed build" and return 0;
2586 }
2587
2588 $no_reboot = $save_no_reboot;
2589
2590 my $end_time = time;
2591 $build_time = $end_time - $start_time;
2592
2593 return 1;
2594}
2595
2596sub halt {
2597 if (!run_ssh "halt" or defined($power_off)) {
2598 if (defined($poweroff_after_halt)) {
2599 sleep $poweroff_after_halt;
2600 run_command "$power_off";
2601 }
2602 } else {
2603 # nope? the zap it!
2604 run_command "$power_off";
2605 }
2606}
2607
2608sub success {
2609 my ($i) = @_;
2610
2611 $successes++;
2612
2613 my $name = "";
2614
2615 if (defined($test_name)) {
2616 $name = " ($test_name)";
2617 }
2618
2619 print_times;
2620
2621 doprint "\n\n*******************************************\n";
2622 doprint "*******************************************\n";
2623 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2624 doprint "*******************************************\n";
2625 doprint "*******************************************\n";
2626
2627 if (defined($store_successes)) {
2628 save_logs "success", $store_successes;
2629 }
2630
2631 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2632 doprint "Reboot and wait $sleep_time seconds\n";
2633 reboot_to_good $sleep_time;
2634 }
2635
2636 if (defined($post_test)) {
2637 run_command $post_test;
2638 }
2639}
2640
2641sub answer_bisect {
2642 for (;;) {
2643 doprint "Pass, fail, or skip? [p/f/s]";
2644 my $ans = <STDIN>;
2645 chomp $ans;
2646 if ($ans eq "p" || $ans eq "P") {
2647 return 1;
2648 } elsif ($ans eq "f" || $ans eq "F") {
2649 return 0;
2650 } elsif ($ans eq "s" || $ans eq "S") {
2651 return -1;
2652 } else {
2653 print "Please answer 'p', 'f', or 's'\n";
2654 }
2655 }
2656}
2657
2658sub child_run_test {
2659
2660 # child should have no power
2661 $reboot_on_error = 0;
2662 $poweroff_on_error = 0;
2663 $die_on_failure = 1;
2664
2665 run_command $run_test, $testlog;
2666
2667 exit $run_command_status;
2668}
2669
2670my $child_done;
2671
2672sub child_finished {
2673 $child_done = 1;
2674}
2675
2676sub do_run_test {
2677 my $child_pid;
2678 my $child_exit;
2679 my $line;
2680 my $full_line;
2681 my $bug = 0;
2682 my $bug_ignored = 0;
2683
2684 my $start_time = time;
2685
2686 wait_for_monitor 1;
2687
2688 doprint "run test $run_test\n";
2689
2690 $child_done = 0;
2691
2692 $SIG{CHLD} = qw(child_finished);
2693
2694 $child_pid = fork;
2695
2696 child_run_test if (!$child_pid);
2697
2698 $full_line = "";
2699
2700 do {
2701 $line = wait_for_input($monitor_fp, 1);
2702 if (defined($line)) {
2703
2704 # we are not guaranteed to get a full line
2705 $full_line .= $line;
2706 doprint $line;
2707
2708 if ($full_line =~ /call trace:/i) {
2709 if ($ignore_errors) {
2710 $bug_ignored = 1;
2711 } else {
2712 $bug = 1;
2713 }
2714 }
2715
2716 if ($full_line =~ /Kernel panic -/) {
2717 $bug = 1;
2718 }
2719
2720 if ($line =~ /\n/) {
2721 $full_line = "";
2722 }
2723 }
2724 } while (!$child_done && !$bug);
2725
2726 if (!$bug && $bug_ignored) {
2727 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2728 }
2729
2730 if ($bug) {
2731 my $failure_start = time;
2732 my $now;
2733 do {
2734 $line = wait_for_input($monitor_fp, 1);
2735 if (defined($line)) {
2736 doprint $line;
2737 }
2738 $now = time;
2739 if ($now - $failure_start >= $stop_after_failure) {
2740 last;
2741 }
2742 } while (defined($line));
2743
2744 doprint "Detected kernel crash!\n";
2745 # kill the child with extreme prejudice
2746 kill 9, $child_pid;
2747 }
2748
2749 waitpid $child_pid, 0;
2750 $child_exit = $? >> 8;
2751
2752 my $end_time = time;
2753 $test_time = $end_time - $start_time;
2754
2755 if (!$bug && $in_bisect) {
2756 if (defined($bisect_ret_good)) {
2757 if ($child_exit == $bisect_ret_good) {
2758 return 1;
2759 }
2760 }
2761 if (defined($bisect_ret_skip)) {
2762 if ($child_exit == $bisect_ret_skip) {
2763 return -1;
2764 }
2765 }
2766 if (defined($bisect_ret_abort)) {
2767 if ($child_exit == $bisect_ret_abort) {
2768 fail "test abort" and return -2;
2769 }
2770 }
2771 if (defined($bisect_ret_bad)) {
2772 if ($child_exit == $bisect_ret_skip) {
2773 return 0;
2774 }
2775 }
2776 if (defined($bisect_ret_default)) {
2777 if ($bisect_ret_default eq "good") {
2778 return 1;
2779 } elsif ($bisect_ret_default eq "bad") {
2780 return 0;
2781 } elsif ($bisect_ret_default eq "skip") {
2782 return -1;
2783 } elsif ($bisect_ret_default eq "abort") {
2784 return -2;
2785 } else {
2786 fail "unknown default action: $bisect_ret_default"
2787 and return -2;
2788 }
2789 }
2790 }
2791
2792 if ($bug || $child_exit) {
2793 return 0 if $in_bisect;
2794 fail "test failed" and return 0;
2795 }
2796 return 1;
2797}
2798
2799sub run_git_bisect {
2800 my ($command) = @_;
2801
2802 doprint "$command ... ";
2803
2804 my $output = `$command 2>&1`;
2805 my $ret = $?;
2806
2807 logit $output;
2808
2809 if ($ret) {
2810 doprint "FAILED\n";
2811 dodie "Failed to git bisect";
2812 }
2813
2814 doprint "SUCCESS\n";
2815 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2816 doprint "$1 [$2]\n";
2817 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2818 $bisect_bad_commit = $1;
2819 doprint "Found bad commit... $1\n";
2820 return 0;
2821 } else {
2822 # we already logged it, just print it now.
2823 print $output;
2824 }
2825
2826 return 1;
2827}
2828
2829sub bisect_reboot {
2830 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2831 reboot_to_good $bisect_sleep_time;
2832}
2833
2834# returns 1 on success, 0 on failure, -1 on skip
2835sub run_bisect_test {
2836 my ($type, $buildtype) = @_;
2837
2838 my $failed = 0;
2839 my $result;
2840 my $output;
2841 my $ret;
2842
2843 $in_bisect = 1;
2844
2845 build $buildtype or $failed = 1;
2846
2847 if ($type ne "build") {
2848 if ($failed && $bisect_skip) {
2849 $in_bisect = 0;
2850 return -1;
2851 }
2852 dodie "Failed on build" if $failed;
2853
2854 # Now boot the box
2855 start_monitor_and_install or $failed = 1;
2856
2857 if ($type ne "boot") {
2858 if ($failed && $bisect_skip) {
2859 end_monitor;
2860 bisect_reboot;
2861 $in_bisect = 0;
2862 return -1;
2863 }
2864 dodie "Failed on boot" if $failed;
2865
2866 do_run_test or $failed = 1;
2867 }
2868 end_monitor;
2869 }
2870
2871 if ($failed) {
2872 $result = 0;
2873 } else {
2874 $result = 1;
2875 }
2876
2877 # reboot the box to a kernel we can ssh to
2878 if ($type ne "build") {
2879 bisect_reboot;
2880 }
2881 $in_bisect = 0;
2882
2883 return $result;
2884}
2885
2886sub run_bisect {
2887 my ($type) = @_;
2888 my $buildtype = "oldconfig";
2889
2890 # We should have a minconfig to use?
2891 if (defined($minconfig)) {
2892 $buildtype = "useconfig:$minconfig";
2893 }
2894
2895 # If the user sets bisect_tries to less than 1, then no tries
2896 # is a success.
2897 my $ret = 1;
2898
2899 # Still let the user manually decide that though.
2900 if ($bisect_tries < 1 && $bisect_manual) {
2901 $ret = answer_bisect;
2902 }
2903
2904 for (my $i = 0; $i < $bisect_tries; $i++) {
2905 if ($bisect_tries > 1) {
2906 my $t = $i + 1;
2907 doprint("Running bisect trial $t of $bisect_tries:\n");
2908 }
2909 $ret = run_bisect_test $type, $buildtype;
2910
2911 if ($bisect_manual) {
2912 $ret = answer_bisect;
2913 }
2914
2915 last if (!$ret);
2916 }
2917
2918 # Are we looking for where it worked, not failed?
2919 if ($reverse_bisect && $ret >= 0) {
2920 $ret = !$ret;
2921 }
2922
2923 if ($ret > 0) {
2924 return "good";
2925 } elsif ($ret == 0) {
2926 return "bad";
2927 } elsif ($bisect_skip) {
2928 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2929 return "skip";
2930 }
2931}
2932
2933sub update_bisect_replay {
2934 my $tmp_log = "$tmpdir/ktest_bisect_log";
2935 run_command "git bisect log > $tmp_log" or
2936 dodie "can't create bisect log";
2937 return $tmp_log;
2938}
2939
2940sub bisect {
2941 my ($i) = @_;
2942
2943 my $result;
2944
2945 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2946 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2947 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2948
2949 my $good = $bisect_good;
2950 my $bad = $bisect_bad;
2951 my $type = $bisect_type;
2952 my $start = $bisect_start;
2953 my $replay = $bisect_replay;
2954 my $start_files = $bisect_files;
2955
2956 if (defined($start_files)) {
2957 $start_files = " -- " . $start_files;
2958 } else {
2959 $start_files = "";
2960 }
2961
2962 # convert to true sha1's
2963 $good = get_sha1($good);
2964 $bad = get_sha1($bad);
2965
2966 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2967 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2968 $reverse_bisect = 1;
2969 } else {
2970 $reverse_bisect = 0;
2971 }
2972
2973 # Can't have a test without having a test to run
2974 if ($type eq "test" && !defined($run_test)) {
2975 $type = "boot";
2976 }
2977
2978 # Check if a bisect was running
2979 my $bisect_start_file = "$builddir/.git/BISECT_START";
2980
2981 my $check = $bisect_check;
2982 my $do_check = defined($check) && $check ne "0";
2983
2984 if ( -f $bisect_start_file ) {
2985 print "Bisect in progress found\n";
2986 if ($do_check) {
2987 print " If you say yes, then no checks of good or bad will be done\n";
2988 }
2989 if (defined($replay)) {
2990 print "** BISECT_REPLAY is defined in config file **";
2991 print " Ignore config option and perform new git bisect log?\n";
2992 if (read_ync " (yes, no, or cancel) ") {
2993 $replay = update_bisect_replay;
2994 $do_check = 0;
2995 }
2996 } elsif (read_yn "read git log and continue?") {
2997 $replay = update_bisect_replay;
2998 $do_check = 0;
2999 }
3000 }
3001
3002 if ($do_check) {
3003
3004 # get current HEAD
3005 my $head = get_sha1("HEAD");
3006
3007 if ($check ne "good") {
3008 doprint "TESTING BISECT BAD [$bad]\n";
3009 run_command "git checkout $bad" or
3010 dodie "Failed to checkout $bad";
3011
3012 $result = run_bisect $type;
3013
3014 if ($result ne "bad") {
3015 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3016 }
3017 }
3018
3019 if ($check ne "bad") {
3020 doprint "TESTING BISECT GOOD [$good]\n";
3021 run_command "git checkout $good" or
3022 dodie "Failed to checkout $good";
3023
3024 $result = run_bisect $type;
3025
3026 if ($result ne "good") {
3027 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3028 }
3029 }
3030
3031 # checkout where we started
3032 run_command "git checkout $head" or
3033 dodie "Failed to checkout $head";
3034 }
3035
3036 run_command "git bisect start$start_files" or
3037 dodie "could not start bisect";
3038
3039 if (defined($replay)) {
3040 run_command "git bisect replay $replay" or
3041 dodie "failed to run replay";
3042 } else {
3043
3044 run_command "git bisect good $good" or
3045 dodie "could not set bisect good to $good";
3046
3047 run_git_bisect "git bisect bad $bad" or
3048 dodie "could not set bisect bad to $bad";
3049
3050 }
3051
3052 if (defined($start)) {
3053 run_command "git checkout $start" or
3054 dodie "failed to checkout $start";
3055 }
3056
3057 my $test;
3058 do {
3059 $result = run_bisect $type;
3060 $test = run_git_bisect "git bisect $result";
3061 print_times;
3062 } while ($test);
3063
3064 run_command "git bisect log" or
3065 dodie "could not capture git bisect log";
3066
3067 run_command "git bisect reset" or
3068 dodie "could not reset git bisect";
3069
3070 doprint "Bad commit was [$bisect_bad_commit]\n";
3071
3072 success $i;
3073}
3074
3075# config_ignore holds the configs that were set (or unset) for
3076# a good config and we will ignore these configs for the rest
3077# of a config bisect. These configs stay as they were.
3078my %config_ignore;
3079
3080# config_set holds what all configs were set as.
3081my %config_set;
3082
3083# config_off holds the set of configs that the bad config had disabled.
3084# We need to record them and set them in the .config when running
3085# olddefconfig, because olddefconfig keeps the defaults.
3086my %config_off;
3087
3088# config_off_tmp holds a set of configs to turn off for now
3089my @config_off_tmp;
3090
3091# config_list is the set of configs that are being tested
3092my %config_list;
3093my %null_config;
3094
3095my %dependency;
3096
3097sub assign_configs {
3098 my ($hash, $config) = @_;
3099
3100 doprint "Reading configs from $config\n";
3101
3102 open (IN, $config)
3103 or dodie "Failed to read $config";
3104
3105 while (<IN>) {
3106 chomp;
3107 if (/^((CONFIG\S*)=.*)/) {
3108 ${$hash}{$2} = $1;
3109 } elsif (/^(# (CONFIG\S*) is not set)/) {
3110 ${$hash}{$2} = $1;
3111 }
3112 }
3113
3114 close(IN);
3115}
3116
3117sub process_config_ignore {
3118 my ($config) = @_;
3119
3120 assign_configs \%config_ignore, $config;
3121}
3122
3123sub get_dependencies {
3124 my ($config) = @_;
3125
3126 my $arr = $dependency{$config};
3127 if (!defined($arr)) {
3128 return ();
3129 }
3130
3131 my @deps = @{$arr};
3132
3133 foreach my $dep (@{$arr}) {
3134 print "ADD DEP $dep\n";
3135 @deps = (@deps, get_dependencies $dep);
3136 }
3137
3138 return @deps;
3139}
3140
3141sub save_config {
3142 my ($pc, $file) = @_;
3143
3144 my %configs = %{$pc};
3145
3146 doprint "Saving configs into $file\n";
3147
3148 open(OUT, ">$file") or dodie "Can not write to $file";
3149
3150 foreach my $config (keys %configs) {
3151 print OUT "$configs{$config}\n";
3152 }
3153 close(OUT);
3154}
3155
3156sub create_config {
3157 my ($name, $pc) = @_;
3158
3159 doprint "Creating old config from $name configs\n";
3160
3161 save_config $pc, $output_config;
3162
3163 make_oldconfig;
3164}
3165
3166sub run_config_bisect_test {
3167 my ($type) = @_;
3168
3169 my $ret = run_bisect_test $type, "oldconfig";
3170
3171 if ($bisect_manual) {
3172 $ret = answer_bisect;
3173 }
3174
3175 return $ret;
3176}
3177
3178sub config_bisect_end {
3179 my ($good, $bad) = @_;
3180 my $diffexec = "diff -u";
3181
3182 if (-f "$builddir/scripts/diffconfig") {
3183 $diffexec = "$builddir/scripts/diffconfig";
3184 }
3185 doprint "\n\n***************************************\n";
3186 doprint "No more config bisecting possible.\n";
3187 run_command "$diffexec $good $bad", 1;
3188 doprint "***************************************\n\n";
3189}
3190
3191sub run_config_bisect {
3192 my ($good, $bad, $last_result) = @_;
3193 my $reset = "";
3194 my $cmd;
3195 my $ret;
3196
3197 if (!length($last_result)) {
3198 $reset = "-r";
3199 }
3200 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3201
3202 # config-bisect returns:
3203 # 0 if there is more to bisect
3204 # 1 for finding a good config
3205 # 2 if it can not find any more configs
3206 # -1 (255) on error
3207 if ($run_command_status) {
3208 return $run_command_status;
3209 }
3210
3211 $ret = run_config_bisect_test $config_bisect_type;
3212 if ($ret) {
3213 doprint "NEW GOOD CONFIG\n";
3214 # Return 3 for good config
3215 return 3;
3216 } else {
3217 doprint "NEW BAD CONFIG\n";
3218 # Return 4 for bad config
3219 return 4;
3220 }
3221}
3222
3223sub config_bisect {
3224 my ($i) = @_;
3225
3226 my $good_config;
3227 my $bad_config;
3228
3229 my $type = $config_bisect_type;
3230 my $ret;
3231
3232 $bad_config = $config_bisect;
3233
3234 if (defined($config_bisect_good)) {
3235 $good_config = $config_bisect_good;
3236 } elsif (defined($minconfig)) {
3237 $good_config = $minconfig;
3238 } else {
3239 doprint "No config specified, checking if defconfig works";
3240 $ret = run_bisect_test $type, "defconfig";
3241 if (!$ret) {
3242 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3243 return 1;
3244 }
3245 $good_config = $output_config;
3246 }
3247
3248 if (!defined($config_bisect_exec)) {
3249 # First check the location that ktest.pl ran
3250 my @locations = ( "$pwd/config-bisect.pl",
3251 "$dirname/config-bisect.pl",
3252 "$builddir/tools/testing/ktest/config-bisect.pl",
3253 undef );
3254 foreach my $loc (@locations) {
3255 doprint "loc = $loc\n";
3256 $config_bisect_exec = $loc;
3257 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3258 }
3259 if (!defined($config_bisect_exec)) {
3260 fail "Could not find an executable config-bisect.pl\n",
3261 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3262 return 1;
3263 }
3264 }
3265
3266 # we don't want min configs to cause issues here.
3267 doprint "Disabling 'MIN_CONFIG' for this test\n";
3268 undef $minconfig;
3269
3270 my %good_configs;
3271 my %bad_configs;
3272 my %tmp_configs;
3273
3274 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3275 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3276 if (-f "$tmpdir/good_config.tmp") {
3277 $good_config = "$tmpdir/good_config.tmp";
3278 } else {
3279 $good_config = "$tmpdir/good_config";
3280 }
3281 if (-f "$tmpdir/bad_config.tmp") {
3282 $bad_config = "$tmpdir/bad_config.tmp";
3283 } else {
3284 $bad_config = "$tmpdir/bad_config";
3285 }
3286 }
3287 }
3288 doprint "Run good configs through make oldconfig\n";
3289 assign_configs \%tmp_configs, $good_config;
3290 create_config "$good_config", \%tmp_configs;
3291 $good_config = "$tmpdir/good_config";
3292 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3293
3294 doprint "Run bad configs through make oldconfig\n";
3295 assign_configs \%tmp_configs, $bad_config;
3296 create_config "$bad_config", \%tmp_configs;
3297 $bad_config = "$tmpdir/bad_config";
3298 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3299
3300 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3301 if ($config_bisect_check ne "good") {
3302 doprint "Testing bad config\n";
3303
3304 $ret = run_bisect_test $type, "useconfig:$bad_config";
3305 if ($ret) {
3306 fail "Bad config succeeded when expected to fail!";
3307 return 0;
3308 }
3309 }
3310 if ($config_bisect_check ne "bad") {
3311 doprint "Testing good config\n";
3312
3313 $ret = run_bisect_test $type, "useconfig:$good_config";
3314 if (!$ret) {
3315 fail "Good config failed when expected to succeed!";
3316 return 0;
3317 }
3318 }
3319 }
3320
3321 my $last_run = "";
3322
3323 do {
3324 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3325 if ($ret == 3) {
3326 $last_run = "good";
3327 } elsif ($ret == 4) {
3328 $last_run = "bad";
3329 }
3330 print_times;
3331 } while ($ret == 3 || $ret == 4);
3332
3333 if ($ret == 2) {
3334 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3335 }
3336
3337 return $ret if ($ret < 0);
3338
3339 success $i;
3340}
3341
3342sub patchcheck_reboot {
3343 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3344 reboot_to_good $patchcheck_sleep_time;
3345}
3346
3347sub patchcheck {
3348 my ($i) = @_;
3349
3350 dodie "PATCHCHECK_START[$i] not defined\n"
3351 if (!defined($patchcheck_start));
3352 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3353 if (!defined($patchcheck_type));
3354
3355 my $start = $patchcheck_start;
3356
3357 my $cherry = $patchcheck_cherry;
3358 if (!defined($cherry)) {
3359 $cherry = 0;
3360 }
3361
3362 my $end = "HEAD";
3363 if (defined($patchcheck_end)) {
3364 $end = $patchcheck_end;
3365 } elsif ($cherry) {
3366 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3367 }
3368
3369 # Get the true sha1's since we can use things like HEAD~3
3370 $start = get_sha1($start);
3371 $end = get_sha1($end);
3372
3373 my $type = $patchcheck_type;
3374
3375 # Can't have a test without having a test to run
3376 if ($type eq "test" && !defined($run_test)) {
3377 $type = "boot";
3378 }
3379
3380 if ($cherry) {
3381 open (IN, "git cherry -v $start $end|") or
3382 dodie "could not get git list";
3383 } else {
3384 open (IN, "git log --pretty=oneline $end|") or
3385 dodie "could not get git list";
3386 }
3387
3388 my @list;
3389
3390 while (<IN>) {
3391 chomp;
3392 # git cherry adds a '+' we want to remove
3393 s/^\+ //;
3394 $list[$#list+1] = $_;
3395 last if (/^$start/);
3396 }
3397 close(IN);
3398
3399 if (!$cherry) {
3400 if ($list[$#list] !~ /^$start/) {
3401 fail "SHA1 $start not found";
3402 }
3403
3404 # go backwards in the list
3405 @list = reverse @list;
3406 }
3407
3408 doprint("Going to test the following commits:\n");
3409 foreach my $l (@list) {
3410 doprint "$l\n";
3411 }
3412
3413 my $save_clean = $noclean;
3414 my %ignored_warnings;
3415
3416 if (defined($ignore_warnings)) {
3417 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3418 $ignored_warnings{$sha1} = 1;
3419 }
3420 }
3421
3422 $in_patchcheck = 1;
3423 foreach my $item (@list) {
3424 my $sha1 = $item;
3425 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3426
3427 doprint "\nProcessing commit \"$item\"\n\n";
3428
3429 run_command "git checkout $sha1" or
3430 dodie "Failed to checkout $sha1";
3431
3432 # only clean on the first and last patch
3433 if ($item eq $list[0] ||
3434 $item eq $list[$#list]) {
3435 $noclean = $save_clean;
3436 } else {
3437 $noclean = 1;
3438 }
3439
3440 if (defined($minconfig)) {
3441 build "useconfig:$minconfig" or return 0;
3442 } else {
3443 # ?? no config to use?
3444 build "oldconfig" or return 0;
3445 }
3446
3447 # No need to do per patch checking if warnings file exists
3448 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3449 check_patch_buildlog $sha1 or return 0;
3450 }
3451
3452 check_buildlog or return 0;
3453
3454 next if ($type eq "build");
3455
3456 my $failed = 0;
3457
3458 start_monitor_and_install or $failed = 1;
3459
3460 if (!$failed && $type ne "boot"){
3461 do_run_test or $failed = 1;
3462 }
3463 end_monitor;
3464 if ($failed) {
3465 print_times;
3466 return 0;
3467 }
3468 patchcheck_reboot;
3469 print_times;
3470 }
3471 $in_patchcheck = 0;
3472 success $i;
3473
3474 return 1;
3475}
3476
3477my %depends;
3478my %depcount;
3479my $iflevel = 0;
3480my @ifdeps;
3481
3482# prevent recursion
3483my %read_kconfigs;
3484
3485sub add_dep {
3486 # $config depends on $dep
3487 my ($config, $dep) = @_;
3488
3489 if (defined($depends{$config})) {
3490 $depends{$config} .= " " . $dep;
3491 } else {
3492 $depends{$config} = $dep;
3493 }
3494
3495 # record the number of configs depending on $dep
3496 if (defined $depcount{$dep}) {
3497 $depcount{$dep}++;
3498 } else {
3499 $depcount{$dep} = 1;
3500 }
3501}
3502
3503# taken from streamline_config.pl
3504sub read_kconfig {
3505 my ($kconfig) = @_;
3506
3507 my $state = "NONE";
3508 my $config;
3509 my @kconfigs;
3510
3511 my $cont = 0;
3512 my $line;
3513
3514
3515 if (! -f $kconfig) {
3516 doprint "file $kconfig does not exist, skipping\n";
3517 return;
3518 }
3519
3520 open(KIN, "$kconfig")
3521 or dodie "Can't open $kconfig";
3522 while (<KIN>) {
3523 chomp;
3524
3525 # Make sure that lines ending with \ continue
3526 if ($cont) {
3527 $_ = $line . " " . $_;
3528 }
3529
3530 if (s/\\$//) {
3531 $cont = 1;
3532 $line = $_;
3533 next;
3534 }
3535
3536 $cont = 0;
3537
3538 # collect any Kconfig sources
3539 if (/^source\s*"(.*)"/) {
3540 $kconfigs[$#kconfigs+1] = $1;
3541 }
3542
3543 # configs found
3544 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3545 $state = "NEW";
3546 $config = $2;
3547
3548 for (my $i = 0; $i < $iflevel; $i++) {
3549 add_dep $config, $ifdeps[$i];
3550 }
3551
3552 # collect the depends for the config
3553 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3554
3555 add_dep $config, $1;
3556
3557 # Get the configs that select this config
3558 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3559
3560 # selected by depends on config
3561 add_dep $1, $config;
3562
3563 # Check for if statements
3564 } elsif (/^if\s+(.*\S)\s*$/) {
3565 my $deps = $1;
3566 # remove beginning and ending non text
3567 $deps =~ s/^[^a-zA-Z0-9_]*//;
3568 $deps =~ s/[^a-zA-Z0-9_]*$//;
3569
3570 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3571
3572 $ifdeps[$iflevel++] = join ':', @deps;
3573
3574 } elsif (/^endif/) {
3575
3576 $iflevel-- if ($iflevel);
3577
3578 # stop on "help"
3579 } elsif (/^\s*help\s*$/) {
3580 $state = "NONE";
3581 }
3582 }
3583 close(KIN);
3584
3585 # read in any configs that were found.
3586 foreach $kconfig (@kconfigs) {
3587 if (!defined($read_kconfigs{$kconfig})) {
3588 $read_kconfigs{$kconfig} = 1;
3589 read_kconfig("$builddir/$kconfig");
3590 }
3591 }
3592}
3593
3594sub read_depends {
3595 # find out which arch this is by the kconfig file
3596 open (IN, $output_config)
3597 or dodie "Failed to read $output_config";
3598 my $arch;
3599 while (<IN>) {
3600 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3601 $arch = $1;
3602 last;
3603 }
3604 }
3605 close IN;
3606
3607 if (!defined($arch)) {
3608 doprint "Could not find arch from config file\n";
3609 doprint "no dependencies used\n";
3610 return;
3611 }
3612
3613 # arch is really the subarch, we need to know
3614 # what directory to look at.
3615 if ($arch eq "i386" || $arch eq "x86_64") {
3616 $arch = "x86";
3617 }
3618
3619 my $kconfig = "$builddir/arch/$arch/Kconfig";
3620
3621 if (! -f $kconfig && $arch =~ /\d$/) {
3622 my $orig = $arch;
3623 # some subarchs have numbers, truncate them
3624 $arch =~ s/\d*$//;
3625 $kconfig = "$builddir/arch/$arch/Kconfig";
3626 if (! -f $kconfig) {
3627 doprint "No idea what arch dir $orig is for\n";
3628 doprint "no dependencies used\n";
3629 return;
3630 }
3631 }
3632
3633 read_kconfig($kconfig);
3634}
3635
3636sub make_new_config {
3637 my @configs = @_;
3638
3639 open (OUT, ">$output_config")
3640 or dodie "Failed to write $output_config";
3641
3642 foreach my $config (@configs) {
3643 print OUT "$config\n";
3644 }
3645 close OUT;
3646}
3647
3648sub chomp_config {
3649 my ($config) = @_;
3650
3651 $config =~ s/CONFIG_//;
3652
3653 return $config;
3654}
3655
3656sub get_depends {
3657 my ($dep) = @_;
3658
3659 my $kconfig = chomp_config $dep;
3660
3661 $dep = $depends{"$kconfig"};
3662
3663 # the dep string we have saves the dependencies as they
3664 # were found, including expressions like ! && ||. We
3665 # want to split this out into just an array of configs.
3666
3667 my $valid = "A-Za-z_0-9";
3668
3669 my @configs;
3670
3671 while ($dep =~ /[$valid]/) {
3672
3673 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3674 my $conf = "CONFIG_" . $1;
3675
3676 $configs[$#configs + 1] = $conf;
3677
3678 $dep =~ s/^[^$valid]*[$valid]+//;
3679 } else {
3680 dodie "this should never happen";
3681 }
3682 }
3683
3684 return @configs;
3685}
3686
3687my %min_configs;
3688my %keep_configs;
3689my %save_configs;
3690my %processed_configs;
3691my %nochange_config;
3692
3693sub test_this_config {
3694 my ($config) = @_;
3695
3696 my $found;
3697
3698 # if we already processed this config, skip it
3699 if (defined($processed_configs{$config})) {
3700 return undef;
3701 }
3702 $processed_configs{$config} = 1;
3703
3704 # if this config failed during this round, skip it
3705 if (defined($nochange_config{$config})) {
3706 return undef;
3707 }
3708
3709 my $kconfig = chomp_config $config;
3710
3711 # Test dependencies first
3712 if (defined($depends{"$kconfig"})) {
3713 my @parents = get_depends $config;
3714 foreach my $parent (@parents) {
3715 # if the parent is in the min config, check it first
3716 next if (!defined($min_configs{$parent}));
3717 $found = test_this_config($parent);
3718 if (defined($found)) {
3719 return $found;
3720 }
3721 }
3722 }
3723
3724 # Remove this config from the list of configs
3725 # do a make olddefconfig and then read the resulting
3726 # .config to make sure it is missing the config that
3727 # we had before
3728 my %configs = %min_configs;
3729 delete $configs{$config};
3730 make_new_config ((values %configs), (values %keep_configs));
3731 make_oldconfig;
3732 undef %configs;
3733 assign_configs \%configs, $output_config;
3734
3735 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3736 return $config;
3737 }
3738
3739 doprint "disabling config $config did not change .config\n";
3740
3741 $nochange_config{$config} = 1;
3742
3743 return undef;
3744}
3745
3746sub make_min_config {
3747 my ($i) = @_;
3748
3749 my $type = $minconfig_type;
3750 if ($type ne "boot" && $type ne "test") {
3751 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3752 " make_min_config works only with 'boot' and 'test'\n" and return;
3753 }
3754
3755 if (!defined($output_minconfig)) {
3756 fail "OUTPUT_MIN_CONFIG not defined" and return;
3757 }
3758
3759 # If output_minconfig exists, and the start_minconfig
3760 # came from min_config, than ask if we should use
3761 # that instead.
3762 if (-f $output_minconfig && !$start_minconfig_defined) {
3763 print "$output_minconfig exists\n";
3764 if (!defined($use_output_minconfig)) {
3765 if (read_yn " Use it as minconfig?") {
3766 $start_minconfig = $output_minconfig;
3767 }
3768 } elsif ($use_output_minconfig > 0) {
3769 doprint "Using $output_minconfig as MIN_CONFIG\n";
3770 $start_minconfig = $output_minconfig;
3771 } else {
3772 doprint "Set to still use MIN_CONFIG as starting point\n";
3773 }
3774 }
3775
3776 if (!defined($start_minconfig)) {
3777 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3778 }
3779
3780 my $temp_config = "$tmpdir/temp_config";
3781
3782 # First things first. We build an allnoconfig to find
3783 # out what the defaults are that we can't touch.
3784 # Some are selections, but we really can't handle selections.
3785
3786 my $save_minconfig = $minconfig;
3787 undef $minconfig;
3788
3789 run_command "$make allnoconfig" or return 0;
3790
3791 read_depends;
3792
3793 process_config_ignore $output_config;
3794
3795 undef %save_configs;
3796 undef %min_configs;
3797
3798 if (defined($ignore_config)) {
3799 # make sure the file exists
3800 `touch $ignore_config`;
3801 assign_configs \%save_configs, $ignore_config;
3802 }
3803
3804 %keep_configs = %save_configs;
3805
3806 doprint "Load initial configs from $start_minconfig\n";
3807
3808 # Look at the current min configs, and save off all the
3809 # ones that were set via the allnoconfig
3810 assign_configs \%min_configs, $start_minconfig;
3811
3812 my @config_keys = keys %min_configs;
3813
3814 # All configs need a depcount
3815 foreach my $config (@config_keys) {
3816 my $kconfig = chomp_config $config;
3817 if (!defined $depcount{$kconfig}) {
3818 $depcount{$kconfig} = 0;
3819 }
3820 }
3821
3822 # Remove anything that was set by the make allnoconfig
3823 # we shouldn't need them as they get set for us anyway.
3824 foreach my $config (@config_keys) {
3825 # Remove anything in the ignore_config
3826 if (defined($keep_configs{$config})) {
3827 my $file = $ignore_config;
3828 $file =~ s,.*/(.*?)$,$1,;
3829 doprint "$config set by $file ... ignored\n";
3830 delete $min_configs{$config};
3831 next;
3832 }
3833 # But make sure the settings are the same. If a min config
3834 # sets a selection, we do not want to get rid of it if
3835 # it is not the same as what we have. Just move it into
3836 # the keep configs.
3837 if (defined($config_ignore{$config})) {
3838 if ($config_ignore{$config} ne $min_configs{$config}) {
3839 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3840 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3841 $keep_configs{$config} = $min_configs{$config};
3842 } else {
3843 doprint "$config set by allnoconfig ... ignored\n";
3844 }
3845 delete $min_configs{$config};
3846 }
3847 }
3848
3849 my $done = 0;
3850 my $take_two = 0;
3851
3852 while (!$done) {
3853
3854 my $config;
3855 my $found;
3856
3857 # Now disable each config one by one and do a make oldconfig
3858 # till we find a config that changes our list.
3859
3860 my @test_configs = keys %min_configs;
3861
3862 # Sort keys by who is most dependent on
3863 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3864 @test_configs ;
3865
3866 # Put configs that did not modify the config at the end.
3867 my $reset = 1;
3868 for (my $i = 0; $i < $#test_configs; $i++) {
3869 if (!defined($nochange_config{$test_configs[0]})) {
3870 $reset = 0;
3871 last;
3872 }
3873 # This config didn't change the .config last time.
3874 # Place it at the end
3875 my $config = shift @test_configs;
3876 push @test_configs, $config;
3877 }
3878
3879 # if every test config has failed to modify the .config file
3880 # in the past, then reset and start over.
3881 if ($reset) {
3882 undef %nochange_config;
3883 }
3884
3885 undef %processed_configs;
3886
3887 foreach my $config (@test_configs) {
3888
3889 $found = test_this_config $config;
3890
3891 last if (defined($found));
3892
3893 # oh well, try another config
3894 }
3895
3896 if (!defined($found)) {
3897 # we could have failed due to the nochange_config hash
3898 # reset and try again
3899 if (!$take_two) {
3900 undef %nochange_config;
3901 $take_two = 1;
3902 next;
3903 }
3904 doprint "No more configs found that we can disable\n";
3905 $done = 1;
3906 last;
3907 }
3908 $take_two = 0;
3909
3910 $config = $found;
3911
3912 doprint "Test with $config disabled\n";
3913
3914 # set in_bisect to keep build and monitor from dieing
3915 $in_bisect = 1;
3916
3917 my $failed = 0;
3918 build "oldconfig" or $failed = 1;
3919 if (!$failed) {
3920 start_monitor_and_install or $failed = 1;
3921
3922 if ($type eq "test" && !$failed) {
3923 do_run_test or $failed = 1;
3924 }
3925
3926 end_monitor;
3927 }
3928
3929 $in_bisect = 0;
3930
3931 if ($failed) {
3932 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3933 # this config is needed, add it to the ignore list.
3934 $keep_configs{$config} = $min_configs{$config};
3935 $save_configs{$config} = $min_configs{$config};
3936 delete $min_configs{$config};
3937
3938 # update new ignore configs
3939 if (defined($ignore_config)) {
3940 open (OUT, ">$temp_config")
3941 or dodie "Can't write to $temp_config";
3942 foreach my $config (keys %save_configs) {
3943 print OUT "$save_configs{$config}\n";
3944 }
3945 close OUT;
3946 run_command "mv $temp_config $ignore_config" or
3947 dodie "failed to copy update to $ignore_config";
3948 }
3949
3950 } else {
3951 # We booted without this config, remove it from the minconfigs.
3952 doprint "$config is not needed, disabling\n";
3953
3954 delete $min_configs{$config};
3955
3956 # Also disable anything that is not enabled in this config
3957 my %configs;
3958 assign_configs \%configs, $output_config;
3959 my @config_keys = keys %min_configs;
3960 foreach my $config (@config_keys) {
3961 if (!defined($configs{$config})) {
3962 doprint "$config is not set, disabling\n";
3963 delete $min_configs{$config};
3964 }
3965 }
3966
3967 # Save off all the current mandatory configs
3968 open (OUT, ">$temp_config")
3969 or dodie "Can't write to $temp_config";
3970 foreach my $config (keys %keep_configs) {
3971 print OUT "$keep_configs{$config}\n";
3972 }
3973 foreach my $config (keys %min_configs) {
3974 print OUT "$min_configs{$config}\n";
3975 }
3976 close OUT;
3977
3978 run_command "mv $temp_config $output_minconfig" or
3979 dodie "failed to copy update to $output_minconfig";
3980 }
3981
3982 doprint "Reboot and wait $sleep_time seconds\n";
3983 reboot_to_good $sleep_time;
3984 }
3985
3986 success $i;
3987 return 1;
3988}
3989
3990sub make_warnings_file {
3991 my ($i) = @_;
3992
3993 if (!defined($warnings_file)) {
3994 dodie "Must define WARNINGS_FILE for make_warnings_file test";
3995 }
3996
3997 if ($build_type eq "nobuild") {
3998 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
3999 }
4000
4001 build $build_type or dodie "Failed to build";
4002
4003 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4004
4005 open(IN, $buildlog) or dodie "Can't open $buildlog";
4006 while (<IN>) {
4007
4008 # Some compilers use UTF-8 extended for quotes
4009 # for distcc heterogeneous systems, this causes issues
4010 s/$utf8_quote/'/g;
4011
4012 if (/$check_build_re/) {
4013 print OUT;
4014 }
4015 }
4016 close(IN);
4017
4018 close(OUT);
4019
4020 success $i;
4021}
4022
4023$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4024
4025if ($#ARGV == 0) {
4026 $ktest_config = $ARGV[0];
4027 if (! -f $ktest_config) {
4028 print "$ktest_config does not exist.\n";
4029 if (!read_yn "Create it?") {
4030 exit 0;
4031 }
4032 }
4033}
4034
4035if (! -f $ktest_config) {
4036 $newconfig = 1;
4037 get_test_case;
4038 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4039 print OUT << "EOF"
4040# Generated by ktest.pl
4041#
4042
4043# PWD is a ktest.pl variable that will result in the process working
4044# directory that ktest.pl is executed in.
4045
4046# THIS_DIR is automatically assigned the PWD of the path that generated
4047# the config file. It is best to use this variable when assigning other
4048# directory paths within this directory. This allows you to easily
4049# move the test cases to other locations or to other machines.
4050#
4051THIS_DIR := $variable{"PWD"}
4052
4053# Define each test with TEST_START
4054# The config options below it will override the defaults
4055TEST_START
4056TEST_TYPE = $default{"TEST_TYPE"}
4057
4058DEFAULTS
4059EOF
4060;
4061 close(OUT);
4062}
4063read_config $ktest_config;
4064
4065if (defined($opt{"LOG_FILE"})) {
4066 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4067}
4068
4069# Append any configs entered in manually to the config file.
4070my @new_configs = keys %entered_configs;
4071if ($#new_configs >= 0) {
4072 print "\nAppending entered in configs to $ktest_config\n";
4073 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4074 foreach my $config (@new_configs) {
4075 print OUT "$config = $entered_configs{$config}\n";
4076 $opt{$config} = process_variables($entered_configs{$config});
4077 }
4078}
4079
4080if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4081 unlink $opt{"LOG_FILE"};
4082}
4083
4084doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4085
4086for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4087
4088 if (!$i) {
4089 doprint "DEFAULT OPTIONS:\n";
4090 } else {
4091 doprint "\nTEST $i OPTIONS";
4092 if (defined($repeat_tests{$i})) {
4093 $repeat = $repeat_tests{$i};
4094 doprint " ITERATE $repeat";
4095 }
4096 doprint "\n";
4097 }
4098
4099 foreach my $option (sort keys %opt) {
4100
4101 if ($option =~ /\[(\d+)\]$/) {
4102 next if ($i != $1);
4103 } else {
4104 next if ($i);
4105 }
4106
4107 doprint "$option = $opt{$option}\n";
4108 }
4109}
4110
4111sub option_defined {
4112 my ($option) = @_;
4113
4114 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4115 return 1;
4116 }
4117
4118 return 0;
4119}
4120
4121sub __set_test_option {
4122 my ($name, $i) = @_;
4123
4124 my $option = "$name\[$i\]";
4125
4126 if (option_defined($option)) {
4127 return $opt{$option};
4128 }
4129
4130 foreach my $test (keys %repeat_tests) {
4131 if ($i >= $test &&
4132 $i < $test + $repeat_tests{$test}) {
4133 $option = "$name\[$test\]";
4134 if (option_defined($option)) {
4135 return $opt{$option};
4136 }
4137 }
4138 }
4139
4140 if (option_defined($name)) {
4141 return $opt{$name};
4142 }
4143
4144 return undef;
4145}
4146
4147sub set_test_option {
4148 my ($name, $i) = @_;
4149
4150 my $option = __set_test_option($name, $i);
4151 return $option if (!defined($option));
4152
4153 return eval_option($name, $option, $i);
4154}
4155
4156sub find_mailer {
4157 my ($mailer) = @_;
4158
4159 my @paths = split /:/, $ENV{PATH};
4160
4161 # sendmail is usually in /usr/sbin
4162 $paths[$#paths + 1] = "/usr/sbin";
4163
4164 foreach my $path (@paths) {
4165 if (-x "$path/$mailer") {
4166 return $path;
4167 }
4168 }
4169
4170 return undef;
4171}
4172
4173sub do_send_mail {
4174 my ($subject, $message) = @_;
4175
4176 if (!defined($mail_path)) {
4177 # find the mailer
4178 $mail_path = find_mailer $mailer;
4179 if (!defined($mail_path)) {
4180 die "\nCan not find $mailer in PATH\n";
4181 }
4182 }
4183
4184 if (!defined($mail_command)) {
4185 if ($mailer eq "mail" || $mailer eq "mailx") {
4186 $mail_command = "\$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO <<< \'\$MESSAGE\'";
4187 } elsif ($mailer eq "sendmail" ) {
4188 $mail_command = "echo \'Subject: \$SUBJECT\n\n\$MESSAGE\' | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4189 } else {
4190 die "\nYour mailer: $mailer is not supported.\n";
4191 }
4192 }
4193
4194 $mail_command =~ s/\$MAILER/$mailer/g;
4195 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4196 $mail_command =~ s/\$MAILTO/$mailto/g;
4197 $mail_command =~ s/\$SUBJECT/$subject/g;
4198 $mail_command =~ s/\$MESSAGE/$message/g;
4199
4200 run_command $mail_command;
4201}
4202
4203sub send_email {
4204
4205 if (defined($mailto)) {
4206 if (!defined($mailer)) {
4207 doprint "No email sent: email or mailer not specified in config.\n";
4208 return;
4209 }
4210 do_send_mail @_;
4211 }
4212}
4213
4214sub cancel_test {
4215 if ($email_when_canceled) {
4216 my $name = get_test_name;
4217 send_email("KTEST: Your [$name] test was cancelled",
4218 "Your test started at $script_start_time was cancelled: sig int");
4219 }
4220 die "\nCaught Sig Int, test interrupted: $!\n"
4221}
4222
4223$SIG{INT} = qw(cancel_test);
4224
4225# First we need to do is the builds
4226for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4227
4228 # Do not reboot on failing test options
4229 $no_reboot = 1;
4230 $reboot_success = 0;
4231
4232 $have_version = 0;
4233
4234 $iteration = $i;
4235
4236 $build_time = 0;
4237 $install_time = 0;
4238 $reboot_time = 0;
4239 $test_time = 0;
4240
4241 undef %force_config;
4242
4243 my $makecmd = set_test_option("MAKE_CMD", $i);
4244
4245 $outputdir = set_test_option("OUTPUT_DIR", $i);
4246 $builddir = set_test_option("BUILD_DIR", $i);
4247
4248 chdir $builddir || dodie "can't change directory to $builddir";
4249
4250 if (!-d $outputdir) {
4251 mkpath($outputdir) or
4252 dodie "can't create $outputdir";
4253 }
4254
4255 $make = "$makecmd O=$outputdir";
4256
4257 # Load all the options into their mapped variable names
4258 foreach my $opt (keys %option_map) {
4259 ${$option_map{$opt}} = set_test_option($opt, $i);
4260 }
4261
4262 $start_minconfig_defined = 1;
4263
4264 # The first test may override the PRE_KTEST option
4265 if ($i == 1) {
4266 if (defined($pre_ktest)) {
4267 doprint "\n";
4268 run_command $pre_ktest;
4269 }
4270 if ($email_when_started) {
4271 my $name = get_test_name;
4272 send_email("KTEST: Your [$name] test was started",
4273 "Your test was started on $script_start_time");
4274 }
4275 }
4276
4277 # Any test can override the POST_KTEST option
4278 # The last test takes precedence.
4279 if (defined($post_ktest)) {
4280 $final_post_ktest = $post_ktest;
4281 }
4282
4283 if (!defined($start_minconfig)) {
4284 $start_minconfig_defined = 0;
4285 $start_minconfig = $minconfig;
4286 }
4287
4288 if (!-d $tmpdir) {
4289 mkpath($tmpdir) or
4290 dodie "can't create $tmpdir";
4291 }
4292
4293 $ENV{"SSH_USER"} = $ssh_user;
4294 $ENV{"MACHINE"} = $machine;
4295
4296 $buildlog = "$tmpdir/buildlog-$machine";
4297 $testlog = "$tmpdir/testlog-$machine";
4298 $dmesg = "$tmpdir/dmesg-$machine";
4299 $output_config = "$outputdir/.config";
4300
4301 if (!$buildonly) {
4302 $target = "$ssh_user\@$machine";
4303 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4304 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4305 } elsif ($reboot_type eq "grub2") {
4306 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4307 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4308 } elsif ($reboot_type eq "syslinux") {
4309 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4310 }
4311 }
4312
4313 my $run_type = $build_type;
4314 if ($test_type eq "patchcheck") {
4315 $run_type = $patchcheck_type;
4316 } elsif ($test_type eq "bisect") {
4317 $run_type = $bisect_type;
4318 } elsif ($test_type eq "config_bisect") {
4319 $run_type = $config_bisect_type;
4320 } elsif ($test_type eq "make_min_config") {
4321 $run_type = "";
4322 } elsif ($test_type eq "make_warnings_file") {
4323 $run_type = "";
4324 }
4325
4326 # mistake in config file?
4327 if (!defined($run_type)) {
4328 $run_type = "ERROR";
4329 }
4330
4331 my $installme = "";
4332 $installme = " no_install" if ($no_install);
4333
4334 my $name = "";
4335
4336 if (defined($test_name)) {
4337 $name = " ($test_name)";
4338 }
4339
4340 doprint "\n\n";
4341 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4342
4343 if (defined($pre_test)) {
4344 run_command $pre_test;
4345 }
4346
4347 unlink $dmesg;
4348 unlink $buildlog;
4349 unlink $testlog;
4350
4351 if (defined($addconfig)) {
4352 my $min = $minconfig;
4353 if (!defined($minconfig)) {
4354 $min = "";
4355 }
4356 run_command "cat $addconfig $min > $tmpdir/add_config" or
4357 dodie "Failed to create temp config";
4358 $minconfig = "$tmpdir/add_config";
4359 }
4360
4361 if (defined($checkout)) {
4362 run_command "git checkout $checkout" or
4363 dodie "failed to checkout $checkout";
4364 }
4365
4366 $no_reboot = 0;
4367
4368 # A test may opt to not reboot the box
4369 if ($reboot_on_success) {
4370 $reboot_success = 1;
4371 }
4372
4373 if ($test_type eq "bisect") {
4374 bisect $i;
4375 next;
4376 } elsif ($test_type eq "config_bisect") {
4377 config_bisect $i;
4378 next;
4379 } elsif ($test_type eq "patchcheck") {
4380 patchcheck $i;
4381 next;
4382 } elsif ($test_type eq "make_min_config") {
4383 make_min_config $i;
4384 next;
4385 } elsif ($test_type eq "make_warnings_file") {
4386 $no_reboot = 1;
4387 make_warnings_file $i;
4388 next;
4389 }
4390
4391 if ($build_type ne "nobuild") {
4392 build $build_type or next;
4393 check_buildlog or next;
4394 }
4395
4396 if ($test_type eq "install") {
4397 get_version;
4398 install;
4399 success $i;
4400 next;
4401 }
4402
4403 if ($test_type ne "build") {
4404 my $failed = 0;
4405 start_monitor_and_install or $failed = 1;
4406
4407 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4408 do_run_test or $failed = 1;
4409 }
4410 end_monitor;
4411 if ($failed) {
4412 print_times;
4413 next;
4414 }
4415 }
4416
4417 print_times;
4418
4419 success $i;
4420}
4421
4422if (defined($final_post_ktest)) {
4423
4424 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4425 run_command $cp_final_post_ktest;
4426}
4427
4428if ($opt{"POWEROFF_ON_SUCCESS"}) {
4429 halt;
4430} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4431 reboot_to_good;
4432} elsif (defined($switch_to_good)) {
4433 # still need to get to the good kernel
4434 run_command $switch_to_good;
4435}
4436
4437
4438doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4439
4440if ($email_when_finished) {
4441 send_email("KTEST: Your test has finished!",
4442 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4443}
4444exit 0;
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 $pwd;
226my $dirname = $FindBin::Bin;
227
228my $mailto;
229my $mailer;
230my $mail_path;
231my $mail_max_size;
232my $mail_command;
233my $email_on_error;
234my $email_when_finished;
235my $email_when_started;
236my $email_when_canceled;
237
238my $script_start_time = localtime();
239
240# set when a test is something other that just building or install
241# which would require more options.
242my $buildonly = 1;
243
244# tell build not to worry about warnings, even when WARNINGS_FILE is set
245my $warnings_ok = 0;
246
247# set when creating a new config
248my $newconfig = 0;
249
250my %entered_configs;
251my %config_help;
252my %variable;
253
254# force_config is the list of configs that we force enabled (or disabled)
255# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
256my %force_config;
257
258# do not force reboots on config problems
259my $no_reboot = 1;
260
261# reboot on success
262my $reboot_success = 0;
263
264my %option_map = (
265 "MAILTO" => \$mailto,
266 "MAILER" => \$mailer,
267 "MAIL_PATH" => \$mail_path,
268 "MAIL_MAX_SIZE" => \$mail_max_size,
269 "MAIL_COMMAND" => \$mail_command,
270 "EMAIL_ON_ERROR" => \$email_on_error,
271 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
272 "EMAIL_WHEN_STARTED" => \$email_when_started,
273 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
274 "MACHINE" => \$machine,
275 "SSH_USER" => \$ssh_user,
276 "TMP_DIR" => \$tmpdir,
277 "OUTPUT_DIR" => \$outputdir,
278 "BUILD_DIR" => \$builddir,
279 "TEST_TYPE" => \$test_type,
280 "PRE_KTEST" => \$pre_ktest,
281 "POST_KTEST" => \$post_ktest,
282 "PRE_TEST" => \$pre_test,
283 "PRE_TEST_DIE" => \$pre_test_die,
284 "POST_TEST" => \$post_test,
285 "BUILD_TYPE" => \$build_type,
286 "BUILD_OPTIONS" => \$build_options,
287 "PRE_BUILD" => \$pre_build,
288 "POST_BUILD" => \$post_build,
289 "PRE_BUILD_DIE" => \$pre_build_die,
290 "POST_BUILD_DIE" => \$post_build_die,
291 "POWER_CYCLE" => \$power_cycle,
292 "REBOOT" => \$reboot,
293 "REBOOT_RETURN_CODE" => \$reboot_return_code,
294 "BUILD_NOCLEAN" => \$noclean,
295 "MIN_CONFIG" => \$minconfig,
296 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
297 "START_MIN_CONFIG" => \$start_minconfig,
298 "MIN_CONFIG_TYPE" => \$minconfig_type,
299 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
300 "WARNINGS_FILE" => \$warnings_file,
301 "IGNORE_CONFIG" => \$ignore_config,
302 "TEST" => \$run_test,
303 "ADD_CONFIG" => \$addconfig,
304 "REBOOT_TYPE" => \$reboot_type,
305 "GRUB_MENU" => \$grub_menu,
306 "GRUB_FILE" => \$grub_file,
307 "GRUB_REBOOT" => \$grub_reboot,
308 "GRUB_BLS_GET" => \$grub_bls_get,
309 "SYSLINUX" => \$syslinux,
310 "SYSLINUX_PATH" => \$syslinux_path,
311 "SYSLINUX_LABEL" => \$syslinux_label,
312 "PRE_INSTALL" => \$pre_install,
313 "POST_INSTALL" => \$post_install,
314 "NO_INSTALL" => \$no_install,
315 "REBOOT_SCRIPT" => \$reboot_script,
316 "REBOOT_ON_ERROR" => \$reboot_on_error,
317 "SWITCH_TO_GOOD" => \$switch_to_good,
318 "SWITCH_TO_TEST" => \$switch_to_test,
319 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
320 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
321 "DIE_ON_FAILURE" => \$die_on_failure,
322 "POWER_OFF" => \$power_off,
323 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
324 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
325 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
326 "SLEEP_TIME" => \$sleep_time,
327 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
328 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
329 "IGNORE_WARNINGS" => \$ignore_warnings,
330 "IGNORE_ERRORS" => \$ignore_errors,
331 "BISECT_MANUAL" => \$bisect_manual,
332 "BISECT_SKIP" => \$bisect_skip,
333 "BISECT_TRIES" => \$bisect_tries,
334 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
335 "BISECT_RET_GOOD" => \$bisect_ret_good,
336 "BISECT_RET_BAD" => \$bisect_ret_bad,
337 "BISECT_RET_SKIP" => \$bisect_ret_skip,
338 "BISECT_RET_ABORT" => \$bisect_ret_abort,
339 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
340 "STORE_FAILURES" => \$store_failures,
341 "STORE_SUCCESSES" => \$store_successes,
342 "TEST_NAME" => \$test_name,
343 "TIMEOUT" => \$timeout,
344 "RUN_TIMEOUT" => \$run_timeout,
345 "CONNECT_TIMEOUT" => \$connect_timeout,
346 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
347 "BOOTED_TIMEOUT" => \$booted_timeout,
348 "CONSOLE" => \$console,
349 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
350 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
351 "SUCCESS_LINE" => \$success_line,
352 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
353 "STOP_AFTER_SUCCESS" => \$stop_after_success,
354 "STOP_AFTER_FAILURE" => \$stop_after_failure,
355 "STOP_TEST_AFTER" => \$stop_test_after,
356 "BUILD_TARGET" => \$build_target,
357 "SSH_EXEC" => \$ssh_exec,
358 "SCP_TO_TARGET" => \$scp_to_target,
359 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
360 "CHECKOUT" => \$checkout,
361 "TARGET_IMAGE" => \$target_image,
362 "LOCALVERSION" => \$localversion,
363
364 "BISECT_GOOD" => \$bisect_good,
365 "BISECT_BAD" => \$bisect_bad,
366 "BISECT_TYPE" => \$bisect_type,
367 "BISECT_START" => \$bisect_start,
368 "BISECT_REPLAY" => \$bisect_replay,
369 "BISECT_FILES" => \$bisect_files,
370 "BISECT_REVERSE" => \$bisect_reverse,
371 "BISECT_CHECK" => \$bisect_check,
372
373 "CONFIG_BISECT" => \$config_bisect,
374 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
375 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
376
377 "PATCHCHECK_TYPE" => \$patchcheck_type,
378 "PATCHCHECK_START" => \$patchcheck_start,
379 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
380 "PATCHCHECK_END" => \$patchcheck_end,
381);
382
383# Options may be used by other options, record them.
384my %used_options;
385
386# default variables that can be used
387chomp ($variable{"PWD"} = `pwd`);
388$pwd = $variable{"PWD"};
389
390$config_help{"MACHINE"} = << "EOF"
391 The machine hostname that you will test.
392 For build only tests, it is still needed to differentiate log files.
393EOF
394 ;
395$config_help{"SSH_USER"} = << "EOF"
396 The box is expected to have ssh on normal bootup, provide the user
397 (most likely root, since you need privileged operations)
398EOF
399 ;
400$config_help{"BUILD_DIR"} = << "EOF"
401 The directory that contains the Linux source code (full path).
402 You can use \${PWD} that will be the path where ktest.pl is run, or use
403 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
404EOF
405 ;
406$config_help{"OUTPUT_DIR"} = << "EOF"
407 The directory that the objects will be built (full path).
408 (can not be same as BUILD_DIR)
409 You can use \${PWD} that will be the path where ktest.pl is run, or use
410 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
411EOF
412 ;
413$config_help{"BUILD_TARGET"} = << "EOF"
414 The location of the compiled file to copy to the target.
415 (relative to OUTPUT_DIR)
416EOF
417 ;
418$config_help{"BUILD_OPTIONS"} = << "EOF"
419 Options to add to \"make\" when building.
420 i.e. -j20
421EOF
422 ;
423$config_help{"TARGET_IMAGE"} = << "EOF"
424 The place to put your image on the test machine.
425EOF
426 ;
427$config_help{"POWER_CYCLE"} = << "EOF"
428 A script or command to reboot the box.
429
430 Here is a digital loggers power switch example
431 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
432
433 Here is an example to reboot a virtual box on the current host
434 with the name "Guest".
435 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
436EOF
437 ;
438$config_help{"CONSOLE"} = << "EOF"
439 The script or command that reads the console
440
441 If you use ttywatch server, something like the following would work.
442CONSOLE = nc -d localhost 3001
443
444 For a virtual machine with guest name "Guest".
445CONSOLE = virsh console Guest
446EOF
447 ;
448$config_help{"LOCALVERSION"} = << "EOF"
449 Required version ending to differentiate the test
450 from other linux builds on the system.
451EOF
452 ;
453$config_help{"REBOOT_TYPE"} = << "EOF"
454 Way to reboot the box to the test kernel.
455 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
456
457 If you specify grub, it will assume grub version 1
458 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
459 and select that target to reboot to the kernel. If this is not
460 your setup, then specify "script" and have a command or script
461 specified in REBOOT_SCRIPT to boot to the target.
462
463 The entry in /boot/grub/menu.lst must be entered in manually.
464 The test will not modify that file.
465
466 If you specify grub2, then you also need to specify both \$GRUB_MENU
467 and \$GRUB_FILE.
468
469 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
470
471 If you specify syslinux, then you may use SYSLINUX to define the syslinux
472 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
473 the syslinux install (defaults to /boot/extlinux). But you have to specify
474 SYSLINUX_LABEL to define the label to boot to for the test kernel.
475EOF
476 ;
477$config_help{"GRUB_MENU"} = << "EOF"
478 The grub title name for the test kernel to boot
479 (Only mandatory if REBOOT_TYPE = grub or grub2)
480
481 Note, ktest.pl will not update the grub menu.lst, you need to
482 manually add an option for the test. ktest.pl will search
483 the grub menu.lst for this option to find what kernel to
484 reboot into.
485
486 For example, if in the /boot/grub/menu.lst the test kernel title has:
487 title Test Kernel
488 kernel vmlinuz-test
489 GRUB_MENU = Test Kernel
490
491 For grub2, a search of \$GRUB_FILE is performed for the lines
492 that begin with "menuentry". It will not detect submenus. The
493 menu must be a non-nested menu. Add the quotes used in the menu
494 to guarantee your selection, as the first menuentry with the content
495 of \$GRUB_MENU that is found will be used.
496
497 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
498 command for the lines that begin with "title".
499EOF
500 ;
501$config_help{"GRUB_FILE"} = << "EOF"
502 If grub2 is used, the full path for the grub.cfg file is placed
503 here. Use something like /boot/grub2/grub.cfg to search.
504EOF
505 ;
506$config_help{"SYSLINUX_LABEL"} = << "EOF"
507 If syslinux is used, the label that boots the target kernel must
508 be specified with SYSLINUX_LABEL.
509EOF
510 ;
511$config_help{"REBOOT_SCRIPT"} = << "EOF"
512 A script to reboot the target into the test kernel
513 (Only mandatory if REBOOT_TYPE = script)
514EOF
515 ;
516
517# used with process_expression()
518my $d = 0;
519
520# defined before get_test_name()
521my $in_die = 0;
522
523# defined before process_warning_line()
524my $check_build_re = ".*:.*(warning|error|Error):.*";
525my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
526
527# defined before child_finished()
528my $child_done;
529
530# config_ignore holds the configs that were set (or unset) for
531# a good config and we will ignore these configs for the rest
532# of a config bisect. These configs stay as they were.
533my %config_ignore;
534
535# config_set holds what all configs were set as.
536my %config_set;
537
538# config_off holds the set of configs that the bad config had disabled.
539# We need to record them and set them in the .config when running
540# olddefconfig, because olddefconfig keeps the defaults.
541my %config_off;
542
543# config_off_tmp holds a set of configs to turn off for now
544my @config_off_tmp;
545
546# config_list is the set of configs that are being tested
547my %config_list;
548my %null_config;
549
550my %dependency;
551
552# found above run_config_bisect()
553my $pass = 1;
554
555# found above add_dep()
556
557my %depends;
558my %depcount;
559my $iflevel = 0;
560my @ifdeps;
561
562# prevent recursion
563my %read_kconfigs;
564
565# found above test_this_config()
566my %min_configs;
567my %keep_configs;
568my %save_configs;
569my %processed_configs;
570my %nochange_config;
571
572#
573# These are first defined here, main function later on
574#
575sub run_command;
576sub start_monitor;
577sub end_monitor;
578sub wait_for_monitor;
579
580sub _logit {
581 if (defined($opt{"LOG_FILE"})) {
582 print LOG @_;
583 }
584}
585
586sub logit {
587 if (defined($opt{"LOG_FILE"})) {
588 _logit @_;
589 } else {
590 print @_;
591 }
592}
593
594sub doprint {
595 print @_;
596 _logit @_;
597}
598
599sub read_prompt {
600 my ($cancel, $prompt) = @_;
601
602 my $ans;
603
604 for (;;) {
605 if ($cancel) {
606 print "$prompt [y/n/C] ";
607 } else {
608 print "$prompt [Y/n] ";
609 }
610 $ans = <STDIN>;
611 chomp $ans;
612 if ($ans =~ /^\s*$/) {
613 if ($cancel) {
614 $ans = "c";
615 } else {
616 $ans = "y";
617 }
618 }
619 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
620 if ($cancel) {
621 last if ($ans =~ /^c$/i);
622 print "Please answer either 'y', 'n' or 'c'.\n";
623 } else {
624 print "Please answer either 'y' or 'n'.\n";
625 }
626 }
627 if ($ans =~ /^c/i) {
628 exit;
629 }
630 if ($ans !~ /^y$/i) {
631 return 0;
632 }
633 return 1;
634}
635
636sub read_yn {
637 my ($prompt) = @_;
638
639 return read_prompt 0, $prompt;
640}
641
642sub read_ync {
643 my ($prompt) = @_;
644
645 return read_prompt 1, $prompt;
646}
647
648sub get_mandatory_config {
649 my ($config) = @_;
650 my $ans;
651
652 return if (defined($opt{$config}));
653
654 if (defined($config_help{$config})) {
655 print "\n";
656 print $config_help{$config};
657 }
658
659 for (;;) {
660 print "$config = ";
661 if (defined($default{$config}) && length($default{$config})) {
662 print "\[$default{$config}\] ";
663 }
664 $ans = <STDIN>;
665 $ans =~ s/^\s*(.*\S)\s*$/$1/;
666 if ($ans =~ /^\s*$/) {
667 if ($default{$config}) {
668 $ans = $default{$config};
669 } else {
670 print "Your answer can not be blank\n";
671 next;
672 }
673 }
674 $entered_configs{$config} = ${ans};
675 last;
676 }
677}
678
679sub show_time {
680 my ($time) = @_;
681
682 my $hours = 0;
683 my $minutes = 0;
684
685 if ($time > 3600) {
686 $hours = int($time / 3600);
687 $time -= $hours * 3600;
688 }
689 if ($time > 60) {
690 $minutes = int($time / 60);
691 $time -= $minutes * 60;
692 }
693
694 if ($hours > 0) {
695 doprint "$hours hour";
696 doprint "s" if ($hours > 1);
697 doprint " ";
698 }
699
700 if ($minutes > 0) {
701 doprint "$minutes minute";
702 doprint "s" if ($minutes > 1);
703 doprint " ";
704 }
705
706 doprint "$time second";
707 doprint "s" if ($time != 1);
708}
709
710sub print_times {
711 doprint "\n";
712 if ($build_time) {
713 doprint "Build time: ";
714 show_time($build_time);
715 doprint "\n";
716 }
717 if ($install_time) {
718 doprint "Install time: ";
719 show_time($install_time);
720 doprint "\n";
721 }
722 if ($reboot_time) {
723 doprint "Reboot time: ";
724 show_time($reboot_time);
725 doprint "\n";
726 }
727 if ($test_time) {
728 doprint "Test time: ";
729 show_time($test_time);
730 doprint "\n";
731 }
732 # reset for iterations like bisect
733 $build_time = 0;
734 $install_time = 0;
735 $reboot_time = 0;
736 $test_time = 0;
737}
738
739sub get_mandatory_configs {
740 get_mandatory_config("MACHINE");
741 get_mandatory_config("BUILD_DIR");
742 get_mandatory_config("OUTPUT_DIR");
743
744 if ($newconfig) {
745 get_mandatory_config("BUILD_OPTIONS");
746 }
747
748 # options required for other than just building a kernel
749 if (!$buildonly) {
750 get_mandatory_config("POWER_CYCLE");
751 get_mandatory_config("CONSOLE");
752 }
753
754 # options required for install and more
755 if ($buildonly != 1) {
756 get_mandatory_config("SSH_USER");
757 get_mandatory_config("BUILD_TARGET");
758 get_mandatory_config("TARGET_IMAGE");
759 }
760
761 get_mandatory_config("LOCALVERSION");
762
763 return if ($buildonly);
764
765 my $rtype = $opt{"REBOOT_TYPE"};
766
767 if (!defined($rtype)) {
768 if (!defined($opt{"GRUB_MENU"})) {
769 get_mandatory_config("REBOOT_TYPE");
770 $rtype = $entered_configs{"REBOOT_TYPE"};
771 } else {
772 $rtype = "grub";
773 }
774 }
775
776 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
777 get_mandatory_config("GRUB_MENU");
778 }
779
780 if ($rtype eq "grub2") {
781 get_mandatory_config("GRUB_MENU");
782 get_mandatory_config("GRUB_FILE");
783 }
784
785 if ($rtype eq "syslinux") {
786 get_mandatory_config("SYSLINUX_LABEL");
787 }
788}
789
790sub process_variables {
791 my ($value, $remove_undef) = @_;
792 my $retval = "";
793
794 # We want to check for '\', and it is just easier
795 # to check the previous characet of '$' and not need
796 # to worry if '$' is the first character. By adding
797 # a space to $value, we can just check [^\\]\$ and
798 # it will still work.
799 $value = " $value";
800
801 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
802 my $begin = $1;
803 my $var = $2;
804 my $end = $3;
805 # append beginning of value to retval
806 $retval = "$retval$begin";
807 if ($var =~ s/^shell\s+//) {
808 $retval = `$var`;
809 if ($?) {
810 doprint "WARNING: $var returned an error\n";
811 } else {
812 chomp $retval;
813 }
814 } elsif (defined($variable{$var})) {
815 $retval = "$retval$variable{$var}";
816 } elsif (defined($remove_undef) && $remove_undef) {
817 # for if statements, any variable that is not defined,
818 # we simple convert to 0
819 $retval = "${retval}0";
820 } else {
821 # put back the origin piece.
822 $retval = "$retval\$\{$var\}";
823 # This could be an option that is used later, save
824 # it so we don't warn if this option is not one of
825 # ktests options.
826 $used_options{$var} = 1;
827 }
828 $value = $end;
829 }
830 $retval = "$retval$value";
831
832 # remove the space added in the beginning
833 $retval =~ s/ //;
834
835 return "$retval";
836}
837
838sub set_value {
839 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
840
841 my $prvalue = process_variables($rvalue);
842
843 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
844 $prvalue !~ /^(config_|)bisect$/ &&
845 $prvalue !~ /^build$/ &&
846 $buildonly) {
847
848 # Note if a test is something other than build, then we
849 # will need other mandatory options.
850 if ($prvalue ne "install") {
851 $buildonly = 0;
852 } else {
853 # install still limits some mandatory options.
854 $buildonly = 2;
855 }
856 }
857
858 if (defined($opt{$lvalue})) {
859 if (!$override || defined(${$overrides}{$lvalue})) {
860 my $extra = "";
861 if ($override) {
862 $extra = "In the same override section!\n";
863 }
864 die "$name: $.: Option $lvalue defined more than once!\n$extra";
865 }
866 ${$overrides}{$lvalue} = $prvalue;
867 }
868
869 $opt{$lvalue} = $prvalue;
870}
871
872sub set_eval {
873 my ($lvalue, $rvalue, $name) = @_;
874
875 my $prvalue = process_variables($rvalue);
876 my $arr;
877
878 if (defined($evals{$lvalue})) {
879 $arr = $evals{$lvalue};
880 } else {
881 $arr = [];
882 $evals{$lvalue} = $arr;
883 }
884
885 push @{$arr}, $rvalue;
886}
887
888sub set_variable {
889 my ($lvalue, $rvalue) = @_;
890
891 if ($rvalue =~ /^\s*$/) {
892 delete $variable{$lvalue};
893 } else {
894 $rvalue = process_variables($rvalue);
895 $variable{$lvalue} = $rvalue;
896 }
897}
898
899sub process_compare {
900 my ($lval, $cmp, $rval) = @_;
901
902 # remove whitespace
903
904 $lval =~ s/^\s*//;
905 $lval =~ s/\s*$//;
906
907 $rval =~ s/^\s*//;
908 $rval =~ s/\s*$//;
909
910 if ($cmp eq "==") {
911 return $lval eq $rval;
912 } elsif ($cmp eq "!=") {
913 return $lval ne $rval;
914 } elsif ($cmp eq "=~") {
915 return $lval =~ m/$rval/;
916 } elsif ($cmp eq "!~") {
917 return $lval !~ m/$rval/;
918 }
919
920 my $statement = "$lval $cmp $rval";
921 my $ret = eval $statement;
922
923 # $@ stores error of eval
924 if ($@) {
925 return -1;
926 }
927
928 return $ret;
929}
930
931sub value_defined {
932 my ($val) = @_;
933
934 return defined($variable{$2}) ||
935 defined($opt{$2});
936}
937
938sub process_expression {
939 my ($name, $val) = @_;
940
941 my $c = $d++;
942
943 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
944 my $express = $1;
945
946 if (process_expression($name, $express)) {
947 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
948 } else {
949 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
950 }
951 }
952
953 $d--;
954 my $OR = "\\|\\|";
955 my $AND = "\\&\\&";
956
957 while ($val =~ s/^(.*?)($OR|$AND)//) {
958 my $express = $1;
959 my $op = $2;
960
961 if (process_expression($name, $express)) {
962 if ($op eq "||") {
963 return 1;
964 }
965 } else {
966 if ($op eq "&&") {
967 return 0;
968 }
969 }
970 }
971
972 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
973 my $ret = process_compare($1, $2, $3);
974 if ($ret < 0) {
975 die "$name: $.: Unable to process comparison\n";
976 }
977 return $ret;
978 }
979
980 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
981 if (defined $1) {
982 return !value_defined($2);
983 } else {
984 return value_defined($2);
985 }
986 }
987
988 if ($val =~ s/^\s*NOT\s+(.*)//) {
989 my $express = $1;
990 my $ret = process_expression($name, $express);
991 return !$ret;
992 }
993
994 if ($val =~ /^\s*0\s*$/) {
995 return 0;
996 } elsif ($val =~ /^\s*\d+\s*$/) {
997 return 1;
998 }
999
1000 die ("$name: $.: Undefined content $val in if statement\n");
1001}
1002
1003sub process_if {
1004 my ($name, $value) = @_;
1005
1006 # Convert variables and replace undefined ones with 0
1007 my $val = process_variables($value, 1);
1008 my $ret = process_expression $name, $val;
1009
1010 return $ret;
1011}
1012
1013sub __read_config {
1014 my ($config, $current_test_num) = @_;
1015
1016 my $in;
1017 open($in, $config) || die "can't read file $config";
1018
1019 my $name = $config;
1020 $name =~ s,.*/(.*),$1,;
1021
1022 my $test_num = $$current_test_num;
1023 my $default = 1;
1024 my $repeat = 1;
1025 my $num_tests_set = 0;
1026 my $skip = 0;
1027 my $rest;
1028 my $line;
1029 my $test_case = 0;
1030 my $if = 0;
1031 my $if_set = 0;
1032 my $override = 0;
1033
1034 my %overrides;
1035
1036 while (<$in>) {
1037
1038 # ignore blank lines and comments
1039 next if (/^\s*$/ || /\s*\#/);
1040
1041 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1042
1043 my $type = $1;
1044 $rest = $2;
1045 $line = $2;
1046
1047 my $old_test_num;
1048 my $old_repeat;
1049 $override = 0;
1050
1051 if ($type eq "TEST_START") {
1052 if ($num_tests_set) {
1053 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1054 }
1055
1056 $old_test_num = $test_num;
1057 $old_repeat = $repeat;
1058
1059 $test_num += $repeat;
1060 $default = 0;
1061 $repeat = 1;
1062 } else {
1063 $default = 1;
1064 }
1065
1066 # If SKIP is anywhere in the line, the command will be skipped
1067 if ($rest =~ s/\s+SKIP\b//) {
1068 $skip = 1;
1069 } else {
1070 $test_case = 1;
1071 $skip = 0;
1072 }
1073
1074 if ($rest =~ s/\sELSE\b//) {
1075 if (!$if) {
1076 die "$name: $.: ELSE found with out matching IF section\n$_";
1077 }
1078 $if = 0;
1079
1080 if ($if_set) {
1081 $skip = 1;
1082 } else {
1083 $skip = 0;
1084 }
1085 }
1086
1087 if ($rest =~ s/\sIF\s+(.*)//) {
1088 if (process_if($name, $1)) {
1089 $if_set = 1;
1090 } else {
1091 $skip = 1;
1092 }
1093 $if = 1;
1094 } else {
1095 $if = 0;
1096 $if_set = 0;
1097 }
1098
1099 if (!$skip) {
1100 if ($type eq "TEST_START") {
1101 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1102 $repeat = $1;
1103 $repeat_tests{"$test_num"} = $repeat;
1104 }
1105 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1106 # DEFAULT only
1107 $override = 1;
1108 # Clear previous overrides
1109 %overrides = ();
1110 }
1111 }
1112
1113 if (!$skip && $rest !~ /^\s*$/) {
1114 die "$name: $.: Garbage found after $type\n$_";
1115 }
1116
1117 if ($skip && $type eq "TEST_START") {
1118 $test_num = $old_test_num;
1119 $repeat = $old_repeat;
1120 }
1121 } elsif (/^\s*ELSE\b(.*)$/) {
1122 if (!$if) {
1123 die "$name: $.: ELSE found with out matching IF section\n$_";
1124 }
1125 $rest = $1;
1126 if ($if_set) {
1127 $skip = 1;
1128 $rest = "";
1129 } else {
1130 $skip = 0;
1131
1132 if ($rest =~ /\sIF\s+(.*)/) {
1133 # May be a ELSE IF section.
1134 if (process_if($name, $1)) {
1135 $if_set = 1;
1136 } else {
1137 $skip = 1;
1138 }
1139 $rest = "";
1140 } else {
1141 $if = 0;
1142 }
1143 }
1144
1145 if ($rest !~ /^\s*$/) {
1146 die "$name: $.: Garbage found after DEFAULTS\n$_";
1147 }
1148
1149 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1150
1151 next if ($skip);
1152
1153 if (!$default) {
1154 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1155 }
1156
1157 my $file = process_variables($1);
1158
1159 if ($file !~ m,^/,) {
1160 # check the path of the config file first
1161 if ($config =~ m,(.*)/,) {
1162 if (-f "$1/$file") {
1163 $file = "$1/$file";
1164 }
1165 }
1166 }
1167
1168 if ( ! -r $file ) {
1169 die "$name: $.: Can't read file $file\n$_";
1170 }
1171
1172 if (__read_config($file, \$test_num)) {
1173 $test_case = 1;
1174 }
1175
1176 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1177
1178 next if ($skip);
1179
1180 my $lvalue = $1;
1181 my $rvalue = $2;
1182
1183 if ($default || $lvalue =~ /\[\d+\]$/) {
1184 set_eval($lvalue, $rvalue, $name);
1185 } else {
1186 my $val = "$lvalue\[$test_num\]";
1187 set_eval($val, $rvalue, $name);
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 &&
1198 ($lvalue eq "NUM_TESTS" ||
1199 $lvalue eq "LOG_FILE" ||
1200 $lvalue eq "CLEAR_LOG")) {
1201 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1202 }
1203
1204 if ($lvalue eq "NUM_TESTS") {
1205 if ($test_num) {
1206 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1207 }
1208 if (!$default) {
1209 die "$name: $.: NUM_TESTS must be set in default section\n";
1210 }
1211 $num_tests_set = 1;
1212 }
1213
1214 if ($default || $lvalue =~ /\[\d+\]$/) {
1215 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1216 } else {
1217 my $val = "$lvalue\[$test_num\]";
1218 set_value($val, $rvalue, $override, \%overrides, $name);
1219
1220 if ($repeat > 1) {
1221 $repeats{$val} = $repeat;
1222 }
1223 }
1224 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1225 next if ($skip);
1226
1227 my $lvalue = $1;
1228 my $rvalue = $2;
1229
1230 # process config variables.
1231 # Config variables are only active while reading the
1232 # config and can be defined anywhere. They also ignore
1233 # TEST_START and DEFAULTS, but are skipped if they are in
1234 # on of these sections that have SKIP defined.
1235 # The save variable can be
1236 # defined multiple times and the new one simply overrides
1237 # the previous one.
1238 set_variable($lvalue, $rvalue);
1239
1240 } else {
1241 die "$name: $.: Garbage found in config\n$_";
1242 }
1243 }
1244
1245 if ($test_num) {
1246 $test_num += $repeat - 1;
1247 $opt{"NUM_TESTS"} = $test_num;
1248 }
1249
1250 close($in);
1251
1252 $$current_test_num = $test_num;
1253
1254 return $test_case;
1255}
1256
1257sub get_test_case {
1258 print "What test case would you like to run?\n";
1259 print " (build, install or boot)\n";
1260 print " Other tests are available but require editing ktest.conf\n";
1261 print " (see tools/testing/ktest/sample.conf)\n";
1262 my $ans = <STDIN>;
1263 chomp $ans;
1264 $default{"TEST_TYPE"} = $ans;
1265}
1266
1267sub read_config {
1268 my ($config) = @_;
1269
1270 my $test_case;
1271 my $test_num = 0;
1272
1273 $test_case = __read_config $config, \$test_num;
1274
1275 # make sure we have all mandatory configs
1276 get_mandatory_configs;
1277
1278 # was a test specified?
1279 if (!$test_case) {
1280 print "No test case specified.\n";
1281 get_test_case;
1282 }
1283
1284 # set any defaults
1285
1286 foreach my $default (keys %default) {
1287 if (!defined($opt{$default})) {
1288 $opt{$default} = $default{$default};
1289 }
1290 }
1291
1292 if ($opt{"IGNORE_UNUSED"} == 1) {
1293 return;
1294 }
1295
1296 my %not_used;
1297
1298 # check if there are any stragglers (typos?)
1299 foreach my $option (keys %opt) {
1300 my $op = $option;
1301 # remove per test labels.
1302 $op =~ s/\[.*\]//;
1303 if (!exists($option_map{$op}) &&
1304 !exists($default{$op}) &&
1305 !exists($used_options{$op})) {
1306 $not_used{$op} = 1;
1307 }
1308 }
1309
1310 if (%not_used) {
1311 my $s = "s are";
1312 $s = " is" if (keys %not_used == 1);
1313 print "The following option$s not used; could be a typo:\n";
1314 foreach my $option (keys %not_used) {
1315 print "$option\n";
1316 }
1317 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1318 if (!read_yn "Do you want to continue?") {
1319 exit -1;
1320 }
1321 }
1322}
1323
1324sub __eval_option {
1325 my ($name, $option, $i) = @_;
1326
1327 # Add space to evaluate the character before $
1328 $option = " $option";
1329 my $retval = "";
1330 my $repeated = 0;
1331 my $parent = 0;
1332
1333 foreach my $test (keys %repeat_tests) {
1334 if ($i >= $test &&
1335 $i < $test + $repeat_tests{$test}) {
1336
1337 $repeated = 1;
1338 $parent = $test;
1339 last;
1340 }
1341 }
1342
1343 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1344 my $start = $1;
1345 my $var = $2;
1346 my $end = $3;
1347
1348 # Append beginning of line
1349 $retval = "$retval$start";
1350
1351 # If the iteration option OPT[$i] exists, then use that.
1352 # otherwise see if the default OPT (without [$i]) exists.
1353
1354 my $o = "$var\[$i\]";
1355 my $parento = "$var\[$parent\]";
1356
1357 # If a variable contains itself, use the default var
1358 if (($var eq $name) && defined($opt{$var})) {
1359 $o = $opt{$var};
1360 $retval = "$retval$o";
1361 } elsif (defined($opt{$o})) {
1362 $o = $opt{$o};
1363 $retval = "$retval$o";
1364 } elsif ($repeated && defined($opt{$parento})) {
1365 $o = $opt{$parento};
1366 $retval = "$retval$o";
1367 } elsif (defined($opt{$var})) {
1368 $o = $opt{$var};
1369 $retval = "$retval$o";
1370 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1371 # special option KERNEL_VERSION uses kernel version
1372 get_version();
1373 $retval = "$retval$version";
1374 } else {
1375 $retval = "$retval\$\{$var\}";
1376 }
1377
1378 $option = $end;
1379 }
1380
1381 $retval = "$retval$option";
1382
1383 $retval =~ s/^ //;
1384
1385 return $retval;
1386}
1387
1388sub process_evals {
1389 my ($name, $option, $i) = @_;
1390
1391 my $option_name = "$name\[$i\]";
1392 my $ev;
1393
1394 my $old_option = $option;
1395
1396 if (defined($evals{$option_name})) {
1397 $ev = $evals{$option_name};
1398 } elsif (defined($evals{$name})) {
1399 $ev = $evals{$name};
1400 } else {
1401 return $option;
1402 }
1403
1404 for my $e (@{$ev}) {
1405 eval "\$option =~ $e";
1406 }
1407
1408 if ($option ne $old_option) {
1409 doprint("$name changed from '$old_option' to '$option'\n");
1410 }
1411
1412 return $option;
1413}
1414
1415sub eval_option {
1416 my ($name, $option, $i) = @_;
1417
1418 my $prev = "";
1419
1420 # Since an option can evaluate to another option,
1421 # keep iterating until we do not evaluate any more
1422 # options.
1423 my $r = 0;
1424 while ($prev ne $option) {
1425 # Check for recursive evaluations.
1426 # 100 deep should be more than enough.
1427 if ($r++ > 100) {
1428 die "Over 100 evaluations occurred with $option\n" .
1429 "Check for recursive variables\n";
1430 }
1431 $prev = $option;
1432 $option = __eval_option($name, $option, $i);
1433 }
1434
1435 $option = process_evals($name, $option, $i);
1436
1437 return $option;
1438}
1439
1440sub reboot {
1441 my ($time) = @_;
1442 my $powercycle = 0;
1443
1444 # test if the machine can be connected to within a few seconds
1445 my $stat = run_ssh("echo check machine status", $connect_timeout);
1446 if (!$stat) {
1447 doprint("power cycle\n");
1448 $powercycle = 1;
1449 }
1450
1451 if ($powercycle) {
1452 run_command "$power_cycle";
1453
1454 start_monitor;
1455 # flush out current monitor
1456 # May contain the reboot success line
1457 wait_for_monitor 1;
1458
1459 } else {
1460 # Make sure everything has been written to disk
1461 run_ssh("sync", 10);
1462
1463 if (defined($time)) {
1464 start_monitor;
1465 # flush out current monitor
1466 # May contain the reboot success line
1467 wait_for_monitor 1;
1468 }
1469
1470 # try to reboot normally
1471 if (run_command $reboot) {
1472 if (defined($powercycle_after_reboot)) {
1473 sleep $powercycle_after_reboot;
1474 run_command "$power_cycle";
1475 }
1476 } else {
1477 # nope? power cycle it.
1478 run_command "$power_cycle";
1479 }
1480 }
1481
1482 if (defined($time)) {
1483
1484 # We only want to get to the new kernel, don't fail
1485 # if we stumble over a call trace.
1486 my $save_ignore_errors = $ignore_errors;
1487 $ignore_errors = 1;
1488
1489 # Look for the good kernel to boot
1490 if (wait_for_monitor($time, "Linux version")) {
1491 # reboot got stuck?
1492 doprint "Reboot did not finish. Forcing power cycle\n";
1493 run_command "$power_cycle";
1494 }
1495
1496 $ignore_errors = $save_ignore_errors;
1497
1498 # Still need to wait for the reboot to finish
1499 wait_for_monitor($time, $reboot_success_line);
1500 }
1501 if ($powercycle || $time) {
1502 end_monitor;
1503 }
1504}
1505
1506sub reboot_to_good {
1507 my ($time) = @_;
1508
1509 if (defined($switch_to_good)) {
1510 run_command $switch_to_good;
1511 }
1512
1513 reboot $time;
1514}
1515
1516sub do_not_reboot {
1517 my $i = $iteration;
1518
1519 return $test_type eq "build" || $no_reboot ||
1520 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1521 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1522 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1523}
1524
1525sub get_test_name() {
1526 my $name;
1527
1528 if (defined($test_name)) {
1529 $name = "$test_name:$test_type";
1530 } else {
1531 $name = $test_type;
1532 }
1533 return $name;
1534}
1535
1536sub dodie {
1537 # avoid recursion
1538 return if ($in_die);
1539 $in_die = 1;
1540
1541 if ($monitor_cnt) {
1542 # restore terminal settings
1543 system("stty $stty_orig");
1544 }
1545
1546 my $i = $iteration;
1547
1548 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1549
1550 if ($reboot_on_error && !do_not_reboot) {
1551 doprint "REBOOTING\n";
1552 reboot_to_good;
1553 } elsif ($poweroff_on_error && defined($power_off)) {
1554 doprint "POWERING OFF\n";
1555 `$power_off`;
1556 }
1557
1558 if (defined($opt{"LOG_FILE"})) {
1559 print " See $opt{LOG_FILE} for more info.\n";
1560 }
1561
1562 if ($email_on_error) {
1563 my $name = get_test_name;
1564 my $log_file;
1565
1566 if (defined($opt{"LOG_FILE"})) {
1567 my $whence = 2; # End of file
1568 my $log_size = tell LOG;
1569 my $size = $log_size - $test_log_start;
1570
1571 if (defined($mail_max_size)) {
1572 if ($size > $mail_max_size) {
1573 $size = $mail_max_size;
1574 }
1575 }
1576 my $pos = - $size;
1577 $log_file = "$tmpdir/log";
1578 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1579 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1580 seek(L, $pos, $whence);
1581 while (<L>) {
1582 print O;
1583 }
1584 close O;
1585 close L;
1586 }
1587
1588 send_email("KTEST: critical failure for test $i [$name]",
1589 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1590 }
1591
1592 if (defined($post_test)) {
1593 run_command $post_test;
1594 }
1595
1596 die @_, "\n";
1597}
1598
1599sub create_pty {
1600 my ($ptm, $pts) = @_;
1601 my $tmp;
1602 my $TIOCSPTLCK = 0x40045431;
1603 my $TIOCGPTN = 0x80045430;
1604
1605 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1606 dodie "Can't open /dev/ptmx";
1607
1608 # unlockpt()
1609 $tmp = pack("i", 0);
1610 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1611 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1612
1613 # ptsname()
1614 ioctl($ptm, $TIOCGPTN, $tmp) or
1615 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1616 $tmp = unpack("i", $tmp);
1617
1618 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1619 dodie "Can't open /dev/pts/$tmp";
1620}
1621
1622sub exec_console {
1623 my ($ptm, $pts) = @_;
1624
1625 close($ptm);
1626
1627 close(\*STDIN);
1628 close(\*STDOUT);
1629 close(\*STDERR);
1630
1631 open(\*STDIN, '<&', $pts);
1632 open(\*STDOUT, '>&', $pts);
1633 open(\*STDERR, '>&', $pts);
1634
1635 close($pts);
1636
1637 exec $console or
1638 dodie "Can't open console $console";
1639}
1640
1641sub open_console {
1642 my ($ptm) = @_;
1643 my $pts = \*PTSFD;
1644 my $pid;
1645
1646 # save terminal settings
1647 $stty_orig = `stty -g`;
1648
1649 # place terminal in cbreak mode so that stdin can be read one character at
1650 # a time without having to wait for a newline
1651 system("stty -icanon -echo -icrnl");
1652
1653 create_pty($ptm, $pts);
1654
1655 $pid = fork;
1656
1657 if (!$pid) {
1658 # child
1659 exec_console($ptm, $pts)
1660 }
1661
1662 # parent
1663 close($pts);
1664
1665 return $pid;
1666
1667 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1668}
1669
1670sub close_console {
1671 my ($fp, $pid) = @_;
1672
1673 doprint "kill child process $pid\n";
1674 kill $close_console_signal, $pid;
1675
1676 doprint "wait for child process $pid to exit\n";
1677 waitpid($pid, 0);
1678
1679 print "closing!\n";
1680 close($fp);
1681
1682 # restore terminal settings
1683 system("stty $stty_orig");
1684}
1685
1686sub start_monitor {
1687 if ($monitor_cnt++) {
1688 return;
1689 }
1690 $monitor_fp = \*MONFD;
1691 $monitor_pid = open_console $monitor_fp;
1692
1693 return;
1694
1695 open(MONFD, "Stop perl from warning about single use of MONFD");
1696}
1697
1698sub end_monitor {
1699 return if (!defined $console);
1700 if (--$monitor_cnt) {
1701 return;
1702 }
1703 close_console($monitor_fp, $monitor_pid);
1704}
1705
1706sub wait_for_monitor {
1707 my ($time, $stop) = @_;
1708 my $full_line = "";
1709 my $line;
1710 my $booted = 0;
1711 my $start_time = time;
1712 my $skip_call_trace = 0;
1713 my $bug = 0;
1714 my $bug_ignored = 0;
1715 my $now;
1716
1717 doprint "** Wait for monitor to settle down **\n";
1718
1719 # read the monitor and wait for the system to calm down
1720 while (!$booted) {
1721 $line = wait_for_input($monitor_fp, $time);
1722 last if (!defined($line));
1723 print "$line";
1724 $full_line .= $line;
1725
1726 if (defined($stop) && $full_line =~ /$stop/) {
1727 doprint "wait for monitor detected $stop\n";
1728 $booted = 1;
1729 }
1730
1731 if ($full_line =~ /\[ backtrace testing \]/) {
1732 $skip_call_trace = 1;
1733 }
1734
1735 if ($full_line =~ /call trace:/i) {
1736 if (!$bug && !$skip_call_trace) {
1737 if ($ignore_errors) {
1738 $bug_ignored = 1;
1739 } else {
1740 $bug = 1;
1741 }
1742 }
1743 }
1744
1745 if ($full_line =~ /\[ end of backtrace testing \]/) {
1746 $skip_call_trace = 0;
1747 }
1748
1749 if ($full_line =~ /Kernel panic -/) {
1750 $bug = 1;
1751 }
1752
1753 if ($line =~ /\n/) {
1754 $full_line = "";
1755 }
1756 $now = time;
1757 if ($now - $start_time >= $max_monitor_wait) {
1758 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1759 return 1;
1760 }
1761 }
1762 print "** Monitor flushed **\n";
1763
1764 # if stop is defined but wasn't hit, return error
1765 # used by reboot (which wants to see a reboot)
1766 if (defined($stop) && !$booted) {
1767 $bug = 1;
1768 }
1769 return $bug;
1770}
1771
1772sub save_logs {
1773 my ($result, $basedir) = @_;
1774 my @t = localtime;
1775 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1776 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1777
1778 my $type = $build_type;
1779 if ($type =~ /useconfig/) {
1780 $type = "useconfig";
1781 }
1782
1783 my $dir = "$machine-$test_type-$type-$result-$date";
1784
1785 $dir = "$basedir/$dir";
1786
1787 if (!-d $dir) {
1788 mkpath($dir) or
1789 dodie "can't create $dir";
1790 }
1791
1792 my %files = (
1793 "config" => $output_config,
1794 "buildlog" => $buildlog,
1795 "dmesg" => $dmesg,
1796 "testlog" => $testlog,
1797 );
1798
1799 while (my ($name, $source) = each(%files)) {
1800 if (-f "$source") {
1801 cp "$source", "$dir/$name" or
1802 dodie "failed to copy $source";
1803 }
1804 }
1805
1806 doprint "*** Saved info to $dir ***\n";
1807}
1808
1809sub fail {
1810
1811 if ($die_on_failure) {
1812 dodie @_;
1813 }
1814
1815 doprint "FAILED\n";
1816
1817 my $i = $iteration;
1818
1819 # no need to reboot for just building.
1820 if (!do_not_reboot) {
1821 doprint "REBOOTING\n";
1822 reboot_to_good $sleep_time;
1823 }
1824
1825 my $name = "";
1826
1827 if (defined($test_name)) {
1828 $name = " ($test_name)";
1829 }
1830
1831 print_times;
1832
1833 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1834 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1835 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1836 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1837 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1838
1839 if (defined($store_failures)) {
1840 save_logs "fail", $store_failures;
1841 }
1842
1843 if (defined($post_test)) {
1844 run_command $post_test;
1845 }
1846
1847 return 1;
1848}
1849
1850sub run_command {
1851 my ($command, $redirect, $timeout) = @_;
1852 my $start_time;
1853 my $end_time;
1854 my $dolog = 0;
1855 my $dord = 0;
1856 my $dostdout = 0;
1857 my $pid;
1858 my $command_orig = $command;
1859
1860 $command =~ s/\$SSH_USER/$ssh_user/g;
1861 $command =~ s/\$MACHINE/$machine/g;
1862
1863 if (!defined($timeout)) {
1864 $timeout = $run_timeout;
1865 }
1866
1867 if (!defined($timeout)) {
1868 $timeout = -1; # tell wait_for_input to wait indefinitely
1869 }
1870
1871 doprint("$command ... ");
1872 $start_time = time;
1873
1874 $pid = open(CMD, "$command 2>&1 |") or
1875 (fail "unable to exec $command" and return 0);
1876
1877 if (defined($opt{"LOG_FILE"})) {
1878 $dolog = 1;
1879 }
1880
1881 if (defined($redirect)) {
1882 if ($redirect eq 1) {
1883 $dostdout = 1;
1884 # Have the output of the command on its own line
1885 doprint "\n";
1886 } else {
1887 open (RD, ">$redirect") or
1888 dodie "failed to write to redirect $redirect";
1889 $dord = 1;
1890 }
1891 }
1892
1893 my $hit_timeout = 0;
1894
1895 while (1) {
1896 my $fp = \*CMD;
1897 my $line = wait_for_input($fp, $timeout);
1898 if (!defined($line)) {
1899 my $now = time;
1900 if ($timeout >= 0 && (($now - $start_time) >= $timeout)) {
1901 doprint "Hit timeout of $timeout, killing process\n";
1902 $hit_timeout = 1;
1903 kill 9, $pid;
1904 }
1905 last;
1906 }
1907 print LOG $line if ($dolog);
1908 print RD $line if ($dord);
1909 print $line if ($dostdout);
1910 }
1911
1912 waitpid($pid, 0);
1913 # shift 8 for real exit status
1914 $run_command_status = $? >> 8;
1915
1916 if ($command_orig eq $default{REBOOT} &&
1917 $run_command_status == $reboot_return_code) {
1918 $run_command_status = 0;
1919 }
1920
1921 close(CMD);
1922 close(RD) if ($dord);
1923
1924 $end_time = time;
1925 my $delta = $end_time - $start_time;
1926
1927 if ($delta == 1) {
1928 doprint "[1 second] ";
1929 } else {
1930 doprint "[$delta seconds] ";
1931 }
1932
1933 if ($hit_timeout) {
1934 $run_command_status = 1;
1935 }
1936
1937 if ($run_command_status) {
1938 doprint "FAILED!\n";
1939 } else {
1940 doprint "SUCCESS\n";
1941 }
1942
1943 return !$run_command_status;
1944}
1945
1946sub run_ssh {
1947 my ($cmd, $timeout) = @_;
1948 my $cp_exec = $ssh_exec;
1949
1950 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1951 return run_command "$cp_exec", undef , $timeout;
1952}
1953
1954sub run_scp {
1955 my ($src, $dst, $cp_scp) = @_;
1956
1957 $cp_scp =~ s/\$SRC_FILE/$src/g;
1958 $cp_scp =~ s/\$DST_FILE/$dst/g;
1959
1960 return run_command "$cp_scp";
1961}
1962
1963sub run_scp_install {
1964 my ($src, $dst) = @_;
1965
1966 my $cp_scp = $scp_to_target_install;
1967
1968 return run_scp($src, $dst, $cp_scp);
1969}
1970
1971sub run_scp_mod {
1972 my ($src, $dst) = @_;
1973
1974 my $cp_scp = $scp_to_target;
1975
1976 return run_scp($src, $dst, $cp_scp);
1977}
1978
1979sub _get_grub_index {
1980
1981 my ($command, $target, $skip, $submenu) = @_;
1982
1983 return if (defined($grub_number) && defined($last_grub_menu) &&
1984 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1985 $last_machine eq $machine);
1986
1987 doprint "Find $reboot_type menu ... ";
1988 $grub_number = -1;
1989
1990 my $ssh_grub = $ssh_exec;
1991 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1992
1993 open(IN, "$ssh_grub |") or
1994 dodie "unable to execute $command";
1995
1996 my $found = 0;
1997
1998 my $submenu_number = 0;
1999
2000 while (<IN>) {
2001 if (/$target/) {
2002 $grub_number++;
2003 $found = 1;
2004 last;
2005 } elsif (defined($submenu) && /$submenu/) {
2006 $submenu_number++;
2007 $grub_number = -1;
2008 } elsif (/$skip/) {
2009 $grub_number++;
2010 }
2011 }
2012 close(IN);
2013
2014 dodie "Could not find '$grub_menu' through $command on $machine"
2015 if (!$found);
2016 if ($submenu_number > 0) {
2017 $grub_number = "$submenu_number>$grub_number";
2018 }
2019 doprint "$grub_number\n";
2020 $last_grub_menu = $grub_menu;
2021 $last_machine = $machine;
2022}
2023
2024sub get_grub_index {
2025
2026 my $command;
2027 my $target;
2028 my $skip;
2029 my $submenu;
2030 my $grub_menu_qt;
2031
2032 if ($reboot_type !~ /^grub/) {
2033 return;
2034 }
2035
2036 $grub_menu_qt = quotemeta($grub_menu);
2037
2038 if ($reboot_type eq "grub") {
2039 $command = "cat /boot/grub/menu.lst";
2040 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2041 $skip = '^\s*title\s';
2042 } elsif ($reboot_type eq "grub2") {
2043 $command = "cat $grub_file";
2044 $target = '^\s*menuentry.*' . $grub_menu_qt;
2045 $skip = '^\s*menuentry';
2046 $submenu = '^\s*submenu\s';
2047 } elsif ($reboot_type eq "grub2bls") {
2048 $command = $grub_bls_get;
2049 $target = '^title=.*' . $grub_menu_qt;
2050 $skip = '^title=';
2051 } else {
2052 return;
2053 }
2054
2055 _get_grub_index($command, $target, $skip, $submenu);
2056}
2057
2058sub wait_for_input {
2059 my ($fp, $time) = @_;
2060 my $start_time;
2061 my $rin;
2062 my $rout;
2063 my $nr;
2064 my $buf;
2065 my $line;
2066 my $ch;
2067
2068 if (!defined($time)) {
2069 $time = $timeout;
2070 }
2071
2072 if ($time < 0) {
2073 # Negative number means wait indefinitely
2074 undef $time;
2075 }
2076
2077 $rin = '';
2078 vec($rin, fileno($fp), 1) = 1;
2079 vec($rin, fileno(\*STDIN), 1) = 1;
2080
2081 $start_time = time;
2082
2083 while (1) {
2084 $nr = select($rout=$rin, undef, undef, $time);
2085
2086 last if ($nr <= 0);
2087
2088 # copy data from stdin to the console
2089 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2090 $nr = sysread(\*STDIN, $buf, 1000);
2091 syswrite($fp, $buf, $nr) if ($nr > 0);
2092 }
2093
2094 # The timeout is based on time waiting for the fp data
2095 if (vec($rout, fileno($fp), 1) != 1) {
2096 last if (defined($time) && (time - $start_time > $time));
2097 next;
2098 }
2099
2100 $line = "";
2101
2102 # try to read one char at a time
2103 while (sysread $fp, $ch, 1) {
2104 $line .= $ch;
2105 last if ($ch eq "\n");
2106 }
2107
2108 last if (!length($line));
2109
2110 return $line;
2111 }
2112 return undef;
2113}
2114
2115sub reboot_to {
2116 if (defined($switch_to_test)) {
2117 run_command $switch_to_test;
2118 }
2119
2120 if ($reboot_type eq "grub") {
2121 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2122 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2123 run_ssh "$grub_reboot \"'$grub_number'\"";
2124 } elsif ($reboot_type eq "syslinux") {
2125 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2126 } elsif (defined $reboot_script) {
2127 run_command "$reboot_script";
2128 }
2129 reboot;
2130}
2131
2132sub get_sha1 {
2133 my ($commit) = @_;
2134
2135 doprint "git rev-list --max-count=1 $commit ... ";
2136 my $sha1 = `git rev-list --max-count=1 $commit`;
2137 my $ret = $?;
2138
2139 logit $sha1;
2140
2141 if ($ret) {
2142 doprint "FAILED\n";
2143 dodie "Failed to get git $commit";
2144 }
2145
2146 print "SUCCESS\n";
2147
2148 chomp $sha1;
2149
2150 return $sha1;
2151}
2152
2153sub monitor {
2154 my $booted = 0;
2155 my $bug = 0;
2156 my $bug_ignored = 0;
2157 my $skip_call_trace = 0;
2158 my $loops;
2159
2160 my $start_time = time;
2161
2162 wait_for_monitor 5;
2163
2164 my $line;
2165 my $full_line = "";
2166
2167 open(DMESG, "> $dmesg") or
2168 dodie "unable to write to $dmesg";
2169
2170 reboot_to;
2171
2172 my $success_start;
2173 my $failure_start;
2174 my $monitor_start = time;
2175 my $done = 0;
2176 my $version_found = 0;
2177
2178 while (!$done) {
2179 if ($bug && defined($stop_after_failure) &&
2180 $stop_after_failure >= 0) {
2181 my $time = $stop_after_failure - (time - $failure_start);
2182 $line = wait_for_input($monitor_fp, $time);
2183 if (!defined($line)) {
2184 doprint "bug timed out after $booted_timeout seconds\n";
2185 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2186 last;
2187 }
2188 } elsif ($booted) {
2189 $line = wait_for_input($monitor_fp, $booted_timeout);
2190 if (!defined($line)) {
2191 my $s = $booted_timeout == 1 ? "" : "s";
2192 doprint "Successful boot found: break after $booted_timeout second$s\n";
2193 last;
2194 }
2195 } else {
2196 $line = wait_for_input($monitor_fp);
2197 if (!defined($line)) {
2198 my $s = $timeout == 1 ? "" : "s";
2199 doprint "Timed out after $timeout second$s\n";
2200 last;
2201 }
2202 }
2203
2204 doprint $line;
2205 print DMESG $line;
2206
2207 # we are not guaranteed to get a full line
2208 $full_line .= $line;
2209
2210 if ($full_line =~ /$success_line/) {
2211 $booted = 1;
2212 $success_start = time;
2213 }
2214
2215 if ($booted && defined($stop_after_success) &&
2216 $stop_after_success >= 0) {
2217 my $now = time;
2218 if ($now - $success_start >= $stop_after_success) {
2219 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2220 last;
2221 }
2222 }
2223
2224 if ($full_line =~ /\[ backtrace testing \]/) {
2225 $skip_call_trace = 1;
2226 }
2227
2228 if ($full_line =~ /call trace:/i) {
2229 if (!$bug && !$skip_call_trace) {
2230 if ($ignore_errors) {
2231 $bug_ignored = 1;
2232 } else {
2233 $bug = 1;
2234 $failure_start = time;
2235 }
2236 }
2237 }
2238
2239 if ($bug && defined($stop_after_failure) &&
2240 $stop_after_failure >= 0) {
2241 my $now = time;
2242 if ($now - $failure_start >= $stop_after_failure) {
2243 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2244 last;
2245 }
2246 }
2247
2248 if ($full_line =~ /\[ end of backtrace testing \]/) {
2249 $skip_call_trace = 0;
2250 }
2251
2252 if ($full_line =~ /Kernel panic -/) {
2253 $failure_start = time;
2254 $bug = 1;
2255 }
2256
2257 # Detect triple faults by testing the banner
2258 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2259 if ($1 eq $version) {
2260 $version_found = 1;
2261 } elsif ($version_found && $detect_triplefault) {
2262 # We already booted into the kernel we are testing,
2263 # but now we booted into another kernel?
2264 # Consider this a triple fault.
2265 doprint "Already booted in Linux kernel $version, but now\n";
2266 doprint "we booted into Linux kernel $1.\n";
2267 doprint "Assuming that this is a triple fault.\n";
2268 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2269 last;
2270 }
2271 }
2272
2273 if ($line =~ /\n/) {
2274 $full_line = "";
2275 }
2276
2277 if ($stop_test_after > 0 && !$booted && !$bug) {
2278 if (time - $monitor_start > $stop_test_after) {
2279 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2280 $done = 1;
2281 }
2282 }
2283 }
2284
2285 my $end_time = time;
2286 $reboot_time = $end_time - $start_time;
2287
2288 close(DMESG);
2289
2290 if ($bug) {
2291 return 0 if ($in_bisect);
2292 fail "failed - got a bug report" and return 0;
2293 }
2294
2295 if (!$booted) {
2296 return 0 if ($in_bisect);
2297 fail "failed - never got a boot prompt." and return 0;
2298 }
2299
2300 if ($bug_ignored) {
2301 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2302 }
2303
2304 return 1;
2305}
2306
2307sub eval_kernel_version {
2308 my ($option) = @_;
2309
2310 $option =~ s/\$KERNEL_VERSION/$version/g;
2311
2312 return $option;
2313}
2314
2315sub do_post_install {
2316
2317 return if (!defined($post_install));
2318
2319 my $cp_post_install = eval_kernel_version $post_install;
2320 run_command "$cp_post_install" or
2321 dodie "Failed to run post install";
2322}
2323
2324# Sometimes the reboot fails, and will hang. We try to ssh to the box
2325# and if we fail, we force another reboot, that should powercycle it.
2326sub test_booted {
2327 if (!run_ssh "echo testing connection") {
2328 reboot $sleep_time;
2329 }
2330}
2331
2332sub install {
2333
2334 return if ($no_install);
2335
2336 my $start_time = time;
2337
2338 if (defined($pre_install)) {
2339 my $cp_pre_install = eval_kernel_version $pre_install;
2340 run_command "$cp_pre_install" or
2341 dodie "Failed to run pre install";
2342 }
2343
2344 my $cp_target = eval_kernel_version $target_image;
2345
2346 test_booted;
2347
2348 run_scp_install "$outputdir/$build_target", "$cp_target" or
2349 dodie "failed to copy image";
2350
2351 my $install_mods = 0;
2352
2353 # should we process modules?
2354 $install_mods = 0;
2355 open(IN, "$output_config") or dodie("Can't read config file");
2356 while (<IN>) {
2357 if (/CONFIG_MODULES(=y)?/) {
2358 if (defined($1)) {
2359 $install_mods = 1;
2360 last;
2361 }
2362 }
2363 }
2364 close(IN);
2365
2366 if (!$install_mods) {
2367 do_post_install;
2368 doprint "No modules needed\n";
2369 my $end_time = time;
2370 $install_time = $end_time - $start_time;
2371 return;
2372 }
2373
2374 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2375 dodie "Failed to install modules";
2376
2377 my $modlib = "/lib/modules/$version";
2378 my $modtar = "ktest-mods.tar.bz2";
2379
2380 run_ssh "rm -rf $modlib" or
2381 dodie "failed to remove old mods: $modlib";
2382
2383 # would be nice if scp -r did not follow symbolic links
2384 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2385 dodie "making tarball";
2386
2387 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2388 dodie "failed to copy modules";
2389
2390 unlink "$tmpdir/$modtar";
2391
2392 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2393 dodie "failed to tar modules";
2394
2395 run_ssh "rm -f /tmp/$modtar";
2396
2397 do_post_install;
2398
2399 my $end_time = time;
2400 $install_time = $end_time - $start_time;
2401}
2402
2403sub get_version {
2404 # get the release name
2405 return if ($have_version);
2406 doprint "$make kernelrelease ... ";
2407 $version = `$make -s kernelrelease | tail -1`;
2408 chomp($version);
2409 doprint "$version\n";
2410 $have_version = 1;
2411}
2412
2413sub start_monitor_and_install {
2414 # Make sure the stable kernel has finished booting
2415
2416 # Install bisects, don't need console
2417 if (defined $console) {
2418 start_monitor;
2419 wait_for_monitor 5;
2420 end_monitor;
2421 }
2422
2423 get_grub_index;
2424 get_version;
2425 install;
2426
2427 start_monitor if (defined $console);
2428 return monitor;
2429}
2430
2431sub process_warning_line {
2432 my ($line) = @_;
2433
2434 chomp $line;
2435
2436 # for distcc heterogeneous systems, some compilers
2437 # do things differently causing warning lines
2438 # to be slightly different. This makes an attempt
2439 # to fixe those issues.
2440
2441 # chop off the index into the line
2442 # using distcc, some compilers give different indexes
2443 # depending on white space
2444 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2445
2446 # Some compilers use UTF-8 extended for quotes and some don't.
2447 $line =~ s/$utf8_quote/'/g;
2448
2449 return $line;
2450}
2451
2452# Read buildlog and check against warnings file for any
2453# new warnings.
2454#
2455# Returns 1 if OK
2456# 0 otherwise
2457sub check_buildlog {
2458 return 1 if (!defined $warnings_file);
2459
2460 my %warnings_list;
2461
2462 # Failed builds should not reboot the target
2463 my $save_no_reboot = $no_reboot;
2464 $no_reboot = 1;
2465
2466 if (-f $warnings_file) {
2467 open(IN, $warnings_file) or
2468 dodie "Error opening $warnings_file";
2469
2470 while (<IN>) {
2471 if (/$check_build_re/) {
2472 my $warning = process_warning_line $_;
2473
2474 $warnings_list{$warning} = 1;
2475 }
2476 }
2477 close(IN);
2478 }
2479
2480 # If warnings file didn't exist, and WARNINGS_FILE exist,
2481 # then we fail on any warning!
2482
2483 open(IN, $buildlog) or dodie "Can't open $buildlog";
2484 while (<IN>) {
2485 if (/$check_build_re/) {
2486 my $warning = process_warning_line $_;
2487
2488 if (!defined $warnings_list{$warning}) {
2489 fail "New warning found (not in $warnings_file)\n$_\n";
2490 $no_reboot = $save_no_reboot;
2491 return 0;
2492 }
2493 }
2494 }
2495 $no_reboot = $save_no_reboot;
2496 close(IN);
2497}
2498
2499sub check_patch_buildlog {
2500 my ($patch) = @_;
2501
2502 my @files = `git show $patch | diffstat -l`;
2503
2504 foreach my $file (@files) {
2505 chomp $file;
2506 }
2507
2508 open(IN, "git show $patch |") or
2509 dodie "failed to show $patch";
2510 while (<IN>) {
2511 if (m,^--- a/(.*),) {
2512 chomp $1;
2513 $files[$#files] = $1;
2514 }
2515 }
2516 close(IN);
2517
2518 open(IN, $buildlog) or dodie "Can't open $buildlog";
2519 while (<IN>) {
2520 if (/^\s*(.*?):.*(warning|error)/) {
2521 my $err = $1;
2522 foreach my $file (@files) {
2523 my $fullpath = "$builddir/$file";
2524 if ($file eq $err || $fullpath eq $err) {
2525 fail "$file built with warnings" and return 0;
2526 }
2527 }
2528 }
2529 }
2530 close(IN);
2531
2532 return 1;
2533}
2534
2535sub apply_min_config {
2536 my $outconfig = "$output_config.new";
2537
2538 # Read the config file and remove anything that
2539 # is in the force_config hash (from minconfig and others)
2540 # then add the force config back.
2541
2542 doprint "Applying minimum configurations into $output_config.new\n";
2543
2544 open (OUT, ">$outconfig") or
2545 dodie "Can't create $outconfig";
2546
2547 if (-f $output_config) {
2548 open (IN, $output_config) or
2549 dodie "Failed to open $output_config";
2550 while (<IN>) {
2551 if (/^(# )?(CONFIG_[^\s=]*)/) {
2552 next if (defined($force_config{$2}));
2553 }
2554 print OUT;
2555 }
2556 close IN;
2557 }
2558 foreach my $config (keys %force_config) {
2559 print OUT "$force_config{$config}\n";
2560 }
2561 close OUT;
2562
2563 run_command "mv $outconfig $output_config";
2564}
2565
2566sub make_oldconfig {
2567
2568 my @force_list = keys %force_config;
2569
2570 if ($#force_list >= 0) {
2571 apply_min_config;
2572 }
2573
2574 if (!run_command "$make olddefconfig") {
2575 # Perhaps olddefconfig doesn't exist in this version of the kernel
2576 # try oldnoconfig
2577 doprint "olddefconfig failed, trying make oldnoconfig\n";
2578 if (!run_command "$make oldnoconfig") {
2579 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2580 # try a yes '' | oldconfig
2581 run_command "yes '' | $make oldconfig" or
2582 dodie "failed make config oldconfig";
2583 }
2584 }
2585}
2586
2587# read a config file and use this to force new configs.
2588sub load_force_config {
2589 my ($config) = @_;
2590
2591 doprint "Loading force configs from $config\n";
2592 open(IN, $config) or
2593 dodie "failed to read $config";
2594 while (<IN>) {
2595 chomp;
2596 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2597 $force_config{$1} = $_;
2598 } elsif (/^# (CONFIG_\S*) is not set/) {
2599 $force_config{$1} = $_;
2600 }
2601 }
2602 close IN;
2603}
2604
2605sub build {
2606 my ($type) = @_;
2607
2608 unlink $buildlog;
2609
2610 my $start_time = time;
2611
2612 # Failed builds should not reboot the target
2613 my $save_no_reboot = $no_reboot;
2614 $no_reboot = 1;
2615
2616 # Calculate a new version from here.
2617 $have_version = 0;
2618
2619 if (defined($pre_build)) {
2620 my $ret = run_command $pre_build;
2621 if (!$ret && defined($pre_build_die) &&
2622 $pre_build_die) {
2623 dodie "failed to pre_build\n";
2624 }
2625 }
2626
2627 if ($type =~ /^useconfig:(.*)/) {
2628 run_command "cp $1 $output_config" or
2629 dodie "could not copy $1 to .config";
2630
2631 $type = "oldconfig";
2632 }
2633
2634 # old config can ask questions
2635 if ($type eq "oldconfig") {
2636 $type = "olddefconfig";
2637
2638 # allow for empty configs
2639 run_command "touch $output_config";
2640
2641 if (!$noclean) {
2642 run_command "mv $output_config $outputdir/config_temp" or
2643 dodie "moving .config";
2644
2645 run_command "$make mrproper" or dodie "make mrproper";
2646
2647 run_command "mv $outputdir/config_temp $output_config" or
2648 dodie "moving config_temp";
2649 }
2650 } elsif (!$noclean) {
2651 unlink "$output_config";
2652 run_command "$make mrproper" or
2653 dodie "make mrproper";
2654 }
2655
2656 # add something to distinguish this build
2657 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2658 print OUT "$localversion\n";
2659 close(OUT);
2660
2661 if (defined($minconfig)) {
2662 load_force_config($minconfig);
2663 }
2664
2665 if ($type ne "olddefconfig") {
2666 run_command "$make $type" or
2667 dodie "failed make config";
2668 }
2669 # Run old config regardless, to enforce min configurations
2670 make_oldconfig;
2671
2672 if (not defined($build_options)){
2673 $build_options = "";
2674 }
2675 my $build_ret = run_command "$make $build_options", $buildlog;
2676
2677 if (defined($post_build)) {
2678 # Because a post build may change the kernel version
2679 # do it now.
2680 get_version;
2681 my $ret = run_command $post_build;
2682 if (!$ret && defined($post_build_die) &&
2683 $post_build_die) {
2684 dodie "failed to post_build\n";
2685 }
2686 }
2687
2688 if (!$build_ret) {
2689 # bisect may need this to pass
2690 if ($in_bisect) {
2691 $no_reboot = $save_no_reboot;
2692 return 0;
2693 }
2694 fail "failed build" and return 0;
2695 }
2696
2697 $no_reboot = $save_no_reboot;
2698
2699 my $end_time = time;
2700 $build_time = $end_time - $start_time;
2701
2702 return 1;
2703}
2704
2705sub halt {
2706 if (!run_ssh "halt" or defined($power_off)) {
2707 if (defined($poweroff_after_halt)) {
2708 sleep $poweroff_after_halt;
2709 run_command "$power_off";
2710 }
2711 } else {
2712 # nope? the zap it!
2713 run_command "$power_off";
2714 }
2715}
2716
2717sub success {
2718 my ($i) = @_;
2719
2720 $successes++;
2721
2722 my $name = "";
2723
2724 if (defined($test_name)) {
2725 $name = " ($test_name)";
2726 }
2727
2728 print_times;
2729
2730 doprint "\n\n";
2731 doprint "*******************************************\n";
2732 doprint "*******************************************\n";
2733 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2734 doprint "*******************************************\n";
2735 doprint "*******************************************\n";
2736
2737 if (defined($store_successes)) {
2738 save_logs "success", $store_successes;
2739 }
2740
2741 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2742 doprint "Reboot and wait $sleep_time seconds\n";
2743 reboot_to_good $sleep_time;
2744 }
2745
2746 if (defined($post_test)) {
2747 run_command $post_test;
2748 }
2749}
2750
2751sub answer_bisect {
2752 for (;;) {
2753 doprint "Pass, fail, or skip? [p/f/s]";
2754 my $ans = <STDIN>;
2755 chomp $ans;
2756 if ($ans eq "p" || $ans eq "P") {
2757 return 1;
2758 } elsif ($ans eq "f" || $ans eq "F") {
2759 return 0;
2760 } elsif ($ans eq "s" || $ans eq "S") {
2761 return -1;
2762 } else {
2763 print "Please answer 'p', 'f', or 's'\n";
2764 }
2765 }
2766}
2767
2768sub child_run_test {
2769
2770 # child should have no power
2771 $reboot_on_error = 0;
2772 $poweroff_on_error = 0;
2773 $die_on_failure = 1;
2774
2775 run_command $run_test, $testlog;
2776
2777 exit $run_command_status;
2778}
2779
2780sub child_finished {
2781 $child_done = 1;
2782}
2783
2784sub do_run_test {
2785 my $child_pid;
2786 my $child_exit;
2787 my $line;
2788 my $full_line;
2789 my $bug = 0;
2790 my $bug_ignored = 0;
2791
2792 my $start_time = time;
2793
2794 wait_for_monitor 1;
2795
2796 doprint "run test $run_test\n";
2797
2798 $child_done = 0;
2799
2800 $SIG{CHLD} = qw(child_finished);
2801
2802 $child_pid = fork;
2803
2804 child_run_test if (!$child_pid);
2805
2806 $full_line = "";
2807
2808 do {
2809 $line = wait_for_input($monitor_fp, 1);
2810 if (defined($line)) {
2811
2812 # we are not guaranteed to get a full line
2813 $full_line .= $line;
2814 doprint $line;
2815
2816 if ($full_line =~ /call trace:/i) {
2817 if ($ignore_errors) {
2818 $bug_ignored = 1;
2819 } else {
2820 $bug = 1;
2821 }
2822 }
2823
2824 if ($full_line =~ /Kernel panic -/) {
2825 $bug = 1;
2826 }
2827
2828 if ($line =~ /\n/) {
2829 $full_line = "";
2830 }
2831 }
2832 } while (!$child_done && !$bug);
2833
2834 if (!$bug && $bug_ignored) {
2835 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2836 }
2837
2838 if ($bug) {
2839 my $failure_start = time;
2840 my $now;
2841 do {
2842 $line = wait_for_input($monitor_fp, 1);
2843 if (defined($line)) {
2844 doprint $line;
2845 }
2846 $now = time;
2847 if ($now - $failure_start >= $stop_after_failure) {
2848 last;
2849 }
2850 } while (defined($line));
2851
2852 doprint "Detected kernel crash!\n";
2853 # kill the child with extreme prejudice
2854 kill 9, $child_pid;
2855 }
2856
2857 waitpid $child_pid, 0;
2858 $child_exit = $? >> 8;
2859
2860 my $end_time = time;
2861 $test_time = $end_time - $start_time;
2862
2863 if (!$bug && $in_bisect) {
2864 if (defined($bisect_ret_good)) {
2865 if ($child_exit == $bisect_ret_good) {
2866 return 1;
2867 }
2868 }
2869 if (defined($bisect_ret_skip)) {
2870 if ($child_exit == $bisect_ret_skip) {
2871 return -1;
2872 }
2873 }
2874 if (defined($bisect_ret_abort)) {
2875 if ($child_exit == $bisect_ret_abort) {
2876 fail "test abort" and return -2;
2877 }
2878 }
2879 if (defined($bisect_ret_bad)) {
2880 if ($child_exit == $bisect_ret_skip) {
2881 return 0;
2882 }
2883 }
2884 if (defined($bisect_ret_default)) {
2885 if ($bisect_ret_default eq "good") {
2886 return 1;
2887 } elsif ($bisect_ret_default eq "bad") {
2888 return 0;
2889 } elsif ($bisect_ret_default eq "skip") {
2890 return -1;
2891 } elsif ($bisect_ret_default eq "abort") {
2892 return -2;
2893 } else {
2894 fail "unknown default action: $bisect_ret_default"
2895 and return -2;
2896 }
2897 }
2898 }
2899
2900 if ($bug || $child_exit) {
2901 return 0 if $in_bisect;
2902 fail "test failed" and return 0;
2903 }
2904 return 1;
2905}
2906
2907sub run_git_bisect {
2908 my ($command) = @_;
2909
2910 doprint "$command ... ";
2911
2912 my $output = `$command 2>&1`;
2913 my $ret = $?;
2914
2915 logit $output;
2916
2917 if ($ret) {
2918 doprint "FAILED\n";
2919 dodie "Failed to git bisect";
2920 }
2921
2922 doprint "SUCCESS\n";
2923 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2924 doprint "$1 [$2]\n";
2925 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2926 $bisect_bad_commit = $1;
2927 doprint "Found bad commit... $1\n";
2928 return 0;
2929 } else {
2930 # we already logged it, just print it now.
2931 print $output;
2932 }
2933
2934 return 1;
2935}
2936
2937sub bisect_reboot {
2938 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2939 reboot_to_good $bisect_sleep_time;
2940}
2941
2942# returns 1 on success, 0 on failure, -1 on skip
2943sub run_bisect_test {
2944 my ($type, $buildtype) = @_;
2945
2946 my $failed = 0;
2947 my $result;
2948 my $output;
2949 my $ret;
2950
2951 $in_bisect = 1;
2952
2953 build $buildtype or $failed = 1;
2954
2955 if ($type ne "build") {
2956 if ($failed && $bisect_skip) {
2957 $in_bisect = 0;
2958 return -1;
2959 }
2960 dodie "Failed on build" if $failed;
2961
2962 # Now boot the box
2963 start_monitor_and_install or $failed = 1;
2964
2965 if ($type ne "boot") {
2966 if ($failed && $bisect_skip) {
2967 end_monitor;
2968 bisect_reboot;
2969 $in_bisect = 0;
2970 return -1;
2971 }
2972 dodie "Failed on boot" if $failed;
2973
2974 do_run_test or $failed = 1;
2975 }
2976 end_monitor;
2977 }
2978
2979 if ($failed) {
2980 $result = 0;
2981 } else {
2982 $result = 1;
2983 }
2984
2985 # reboot the box to a kernel we can ssh to
2986 if ($type ne "build") {
2987 bisect_reboot;
2988 }
2989 $in_bisect = 0;
2990
2991 return $result;
2992}
2993
2994sub run_bisect {
2995 my ($type) = @_;
2996 my $buildtype = "oldconfig";
2997
2998 # We should have a minconfig to use?
2999 if (defined($minconfig)) {
3000 $buildtype = "useconfig:$minconfig";
3001 }
3002
3003 # If the user sets bisect_tries to less than 1, then no tries
3004 # is a success.
3005 my $ret = 1;
3006
3007 # Still let the user manually decide that though.
3008 if ($bisect_tries < 1 && $bisect_manual) {
3009 $ret = answer_bisect;
3010 }
3011
3012 for (my $i = 0; $i < $bisect_tries; $i++) {
3013 if ($bisect_tries > 1) {
3014 my $t = $i + 1;
3015 doprint("Running bisect trial $t of $bisect_tries:\n");
3016 }
3017 $ret = run_bisect_test $type, $buildtype;
3018
3019 if ($bisect_manual) {
3020 $ret = answer_bisect;
3021 }
3022
3023 last if (!$ret);
3024 }
3025
3026 # Are we looking for where it worked, not failed?
3027 if ($reverse_bisect && $ret >= 0) {
3028 $ret = !$ret;
3029 }
3030
3031 if ($ret > 0) {
3032 return "good";
3033 } elsif ($ret == 0) {
3034 return "bad";
3035 } elsif ($bisect_skip) {
3036 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3037 return "skip";
3038 }
3039}
3040
3041sub update_bisect_replay {
3042 my $tmp_log = "$tmpdir/ktest_bisect_log";
3043 run_command "git bisect log > $tmp_log" or
3044 dodie "can't create bisect log";
3045 return $tmp_log;
3046}
3047
3048sub bisect {
3049 my ($i) = @_;
3050
3051 my $result;
3052
3053 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3054 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3055 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3056
3057 my $good = $bisect_good;
3058 my $bad = $bisect_bad;
3059 my $type = $bisect_type;
3060 my $start = $bisect_start;
3061 my $replay = $bisect_replay;
3062 my $start_files = $bisect_files;
3063
3064 if (defined($start_files)) {
3065 $start_files = " -- " . $start_files;
3066 } else {
3067 $start_files = "";
3068 }
3069
3070 # convert to true sha1's
3071 $good = get_sha1($good);
3072 $bad = get_sha1($bad);
3073
3074 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3075 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3076 $reverse_bisect = 1;
3077 } else {
3078 $reverse_bisect = 0;
3079 }
3080
3081 # Can't have a test without having a test to run
3082 if ($type eq "test" && !defined($run_test)) {
3083 $type = "boot";
3084 }
3085
3086 # Check if a bisect was running
3087 my $bisect_start_file = "$builddir/.git/BISECT_START";
3088
3089 my $check = $bisect_check;
3090 my $do_check = defined($check) && $check ne "0";
3091
3092 if ( -f $bisect_start_file ) {
3093 print "Bisect in progress found\n";
3094 if ($do_check) {
3095 print " If you say yes, then no checks of good or bad will be done\n";
3096 }
3097 if (defined($replay)) {
3098 print "** BISECT_REPLAY is defined in config file **";
3099 print " Ignore config option and perform new git bisect log?\n";
3100 if (read_ync " (yes, no, or cancel) ") {
3101 $replay = update_bisect_replay;
3102 $do_check = 0;
3103 }
3104 } elsif (read_yn "read git log and continue?") {
3105 $replay = update_bisect_replay;
3106 $do_check = 0;
3107 }
3108 }
3109
3110 if ($do_check) {
3111 # get current HEAD
3112 my $head = get_sha1("HEAD");
3113
3114 if ($check ne "good") {
3115 doprint "TESTING BISECT BAD [$bad]\n";
3116 run_command "git checkout $bad" or
3117 dodie "Failed to checkout $bad";
3118
3119 $result = run_bisect $type;
3120
3121 if ($result ne "bad") {
3122 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3123 }
3124 }
3125
3126 if ($check ne "bad") {
3127 doprint "TESTING BISECT GOOD [$good]\n";
3128 run_command "git checkout $good" or
3129 dodie "Failed to checkout $good";
3130
3131 $result = run_bisect $type;
3132
3133 if ($result ne "good") {
3134 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3135 }
3136 }
3137
3138 # checkout where we started
3139 run_command "git checkout $head" or
3140 dodie "Failed to checkout $head";
3141 }
3142
3143 run_command "git bisect start$start_files" or
3144 dodie "could not start bisect";
3145
3146 if (defined($replay)) {
3147 run_command "git bisect replay $replay" or
3148 dodie "failed to run replay";
3149 } else {
3150 run_command "git bisect good $good" or
3151 dodie "could not set bisect good to $good";
3152
3153 run_git_bisect "git bisect bad $bad" or
3154 dodie "could not set bisect bad to $bad";
3155 }
3156
3157 if (defined($start)) {
3158 run_command "git checkout $start" or
3159 dodie "failed to checkout $start";
3160 }
3161
3162 my $test;
3163 do {
3164 $result = run_bisect $type;
3165 $test = run_git_bisect "git bisect $result";
3166 print_times;
3167 } while ($test);
3168
3169 run_command "git bisect log" or
3170 dodie "could not capture git bisect log";
3171
3172 run_command "git bisect reset" or
3173 dodie "could not reset git bisect";
3174
3175 doprint "Bad commit was [$bisect_bad_commit]\n";
3176
3177 success $i;
3178}
3179
3180sub assign_configs {
3181 my ($hash, $config) = @_;
3182
3183 doprint "Reading configs from $config\n";
3184
3185 open (IN, $config) or
3186 dodie "Failed to read $config";
3187
3188 while (<IN>) {
3189 chomp;
3190 if (/^((CONFIG\S*)=.*)/) {
3191 ${$hash}{$2} = $1;
3192 } elsif (/^(# (CONFIG\S*) is not set)/) {
3193 ${$hash}{$2} = $1;
3194 }
3195 }
3196
3197 close(IN);
3198}
3199
3200sub process_config_ignore {
3201 my ($config) = @_;
3202
3203 assign_configs \%config_ignore, $config;
3204}
3205
3206sub get_dependencies {
3207 my ($config) = @_;
3208
3209 my $arr = $dependency{$config};
3210 if (!defined($arr)) {
3211 return ();
3212 }
3213
3214 my @deps = @{$arr};
3215
3216 foreach my $dep (@{$arr}) {
3217 print "ADD DEP $dep\n";
3218 @deps = (@deps, get_dependencies $dep);
3219 }
3220
3221 return @deps;
3222}
3223
3224sub save_config {
3225 my ($pc, $file) = @_;
3226
3227 my %configs = %{$pc};
3228
3229 doprint "Saving configs into $file\n";
3230
3231 open(OUT, ">$file") or dodie "Can not write to $file";
3232
3233 foreach my $config (keys %configs) {
3234 print OUT "$configs{$config}\n";
3235 }
3236 close(OUT);
3237}
3238
3239sub create_config {
3240 my ($name, $pc) = @_;
3241
3242 doprint "Creating old config from $name configs\n";
3243
3244 save_config $pc, $output_config;
3245
3246 make_oldconfig;
3247}
3248
3249sub run_config_bisect_test {
3250 my ($type) = @_;
3251
3252 my $ret = run_bisect_test $type, "oldconfig";
3253
3254 if ($bisect_manual) {
3255 $ret = answer_bisect;
3256 }
3257
3258 return $ret;
3259}
3260
3261sub config_bisect_end {
3262 my ($good, $bad) = @_;
3263 my $diffexec = "diff -u";
3264
3265 if (-f "$builddir/scripts/diffconfig") {
3266 $diffexec = "$builddir/scripts/diffconfig";
3267 }
3268 doprint "\n\n***************************************\n";
3269 doprint "No more config bisecting possible.\n";
3270 run_command "$diffexec $good $bad", 1;
3271 doprint "***************************************\n\n";
3272}
3273
3274sub run_config_bisect {
3275 my ($good, $bad, $last_result) = @_;
3276 my $reset = "";
3277 my $cmd;
3278 my $ret;
3279
3280 if (!length($last_result)) {
3281 $reset = "-r";
3282 }
3283 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3284
3285 # config-bisect returns:
3286 # 0 if there is more to bisect
3287 # 1 for finding a good config
3288 # 2 if it can not find any more configs
3289 # -1 (255) on error
3290 if ($run_command_status) {
3291 return $run_command_status;
3292 }
3293
3294 $ret = run_config_bisect_test $config_bisect_type;
3295 if ($ret) {
3296 doprint "NEW GOOD CONFIG ($pass)\n";
3297 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3298 $pass++;
3299 # Return 3 for good config
3300 return 3;
3301 } else {
3302 doprint "NEW BAD CONFIG ($pass)\n";
3303 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3304 $pass++;
3305 # Return 4 for bad config
3306 return 4;
3307 }
3308}
3309
3310sub config_bisect {
3311 my ($i) = @_;
3312
3313 my $good_config;
3314 my $bad_config;
3315
3316 my $type = $config_bisect_type;
3317 my $ret;
3318
3319 $bad_config = $config_bisect;
3320
3321 if (defined($config_bisect_good)) {
3322 $good_config = $config_bisect_good;
3323 } elsif (defined($minconfig)) {
3324 $good_config = $minconfig;
3325 } else {
3326 doprint "No config specified, checking if defconfig works";
3327 $ret = run_bisect_test $type, "defconfig";
3328 if (!$ret) {
3329 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3330 return 1;
3331 }
3332 $good_config = $output_config;
3333 }
3334
3335 if (!defined($config_bisect_exec)) {
3336 # First check the location that ktest.pl ran
3337 my @locations = (
3338 "$pwd/config-bisect.pl",
3339 "$dirname/config-bisect.pl",
3340 "$builddir/tools/testing/ktest/config-bisect.pl",
3341 undef );
3342 foreach my $loc (@locations) {
3343 doprint "loc = $loc\n";
3344 $config_bisect_exec = $loc;
3345 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3346 }
3347 if (!defined($config_bisect_exec)) {
3348 fail "Could not find an executable config-bisect.pl\n",
3349 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3350 return 1;
3351 }
3352 }
3353
3354 # we don't want min configs to cause issues here.
3355 doprint "Disabling 'MIN_CONFIG' for this test\n";
3356 undef $minconfig;
3357
3358 my %good_configs;
3359 my %bad_configs;
3360 my %tmp_configs;
3361
3362 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3363 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3364 if (-f "$tmpdir/good_config.tmp") {
3365 $good_config = "$tmpdir/good_config.tmp";
3366 } else {
3367 $good_config = "$tmpdir/good_config";
3368 }
3369 if (-f "$tmpdir/bad_config.tmp") {
3370 $bad_config = "$tmpdir/bad_config.tmp";
3371 } else {
3372 $bad_config = "$tmpdir/bad_config";
3373 }
3374 }
3375 }
3376 doprint "Run good configs through make oldconfig\n";
3377 assign_configs \%tmp_configs, $good_config;
3378 create_config "$good_config", \%tmp_configs;
3379 $good_config = "$tmpdir/good_config";
3380 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3381
3382 doprint "Run bad configs through make oldconfig\n";
3383 assign_configs \%tmp_configs, $bad_config;
3384 create_config "$bad_config", \%tmp_configs;
3385 $bad_config = "$tmpdir/bad_config";
3386 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3387
3388 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3389 if ($config_bisect_check ne "good") {
3390 doprint "Testing bad config\n";
3391
3392 $ret = run_bisect_test $type, "useconfig:$bad_config";
3393 if ($ret) {
3394 fail "Bad config succeeded when expected to fail!";
3395 return 0;
3396 }
3397 }
3398 if ($config_bisect_check ne "bad") {
3399 doprint "Testing good config\n";
3400
3401 $ret = run_bisect_test $type, "useconfig:$good_config";
3402 if (!$ret) {
3403 fail "Good config failed when expected to succeed!";
3404 return 0;
3405 }
3406 }
3407 }
3408
3409 my $last_run = "";
3410
3411 do {
3412 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3413 if ($ret == 3) {
3414 $last_run = "good";
3415 } elsif ($ret == 4) {
3416 $last_run = "bad";
3417 }
3418 print_times;
3419 } while ($ret == 3 || $ret == 4);
3420
3421 if ($ret == 2) {
3422 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3423 }
3424
3425 return $ret if ($ret < 0);
3426
3427 success $i;
3428}
3429
3430sub patchcheck_reboot {
3431 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3432 reboot_to_good $patchcheck_sleep_time;
3433}
3434
3435sub patchcheck {
3436 my ($i) = @_;
3437
3438 dodie "PATCHCHECK_START[$i] not defined\n"
3439 if (!defined($patchcheck_start));
3440 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3441 if (!defined($patchcheck_type));
3442
3443 my $start = $patchcheck_start;
3444
3445 my $cherry = $patchcheck_cherry;
3446 if (!defined($cherry)) {
3447 $cherry = 0;
3448 }
3449
3450 my $end = "HEAD";
3451 if (defined($patchcheck_end)) {
3452 $end = $patchcheck_end;
3453 } elsif ($cherry) {
3454 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3455 }
3456
3457 # Get the true sha1's since we can use things like HEAD~3
3458 $start = get_sha1($start);
3459 $end = get_sha1($end);
3460
3461 my $type = $patchcheck_type;
3462
3463 # Can't have a test without having a test to run
3464 if ($type eq "test" && !defined($run_test)) {
3465 $type = "boot";
3466 }
3467
3468 if ($cherry) {
3469 open (IN, "git cherry -v $start $end|") or
3470 dodie "could not get git list";
3471 } else {
3472 open (IN, "git log --pretty=oneline $end|") or
3473 dodie "could not get git list";
3474 }
3475
3476 my @list;
3477
3478 while (<IN>) {
3479 chomp;
3480 # git cherry adds a '+' we want to remove
3481 s/^\+ //;
3482 $list[$#list+1] = $_;
3483 last if (/^$start/);
3484 }
3485 close(IN);
3486
3487 if (!$cherry) {
3488 if ($list[$#list] !~ /^$start/) {
3489 fail "SHA1 $start not found";
3490 }
3491
3492 # go backwards in the list
3493 @list = reverse @list;
3494 }
3495
3496 doprint("Going to test the following commits:\n");
3497 foreach my $l (@list) {
3498 doprint "$l\n";
3499 }
3500
3501 my $save_clean = $noclean;
3502 my %ignored_warnings;
3503
3504 if (defined($ignore_warnings)) {
3505 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3506 $ignored_warnings{$sha1} = 1;
3507 }
3508 }
3509
3510 $in_patchcheck = 1;
3511 foreach my $item (@list) {
3512 my $sha1 = $item;
3513 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3514
3515 doprint "\nProcessing commit \"$item\"\n\n";
3516
3517 run_command "git checkout $sha1" or
3518 dodie "Failed to checkout $sha1";
3519
3520 # only clean on the first and last patch
3521 if ($item eq $list[0] ||
3522 $item eq $list[$#list]) {
3523 $noclean = $save_clean;
3524 } else {
3525 $noclean = 1;
3526 }
3527
3528 if (defined($minconfig)) {
3529 build "useconfig:$minconfig" or return 0;
3530 } else {
3531 # ?? no config to use?
3532 build "oldconfig" or return 0;
3533 }
3534
3535 # No need to do per patch checking if warnings file exists
3536 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3537 check_patch_buildlog $sha1 or return 0;
3538 }
3539
3540 check_buildlog or return 0;
3541
3542 next if ($type eq "build");
3543
3544 my $failed = 0;
3545
3546 start_monitor_and_install or $failed = 1;
3547
3548 if (!$failed && $type ne "boot"){
3549 do_run_test or $failed = 1;
3550 }
3551 end_monitor;
3552 if ($failed) {
3553 print_times;
3554 return 0;
3555 }
3556 patchcheck_reboot;
3557 print_times;
3558 }
3559 $in_patchcheck = 0;
3560 success $i;
3561
3562 return 1;
3563}
3564
3565sub add_dep {
3566 # $config depends on $dep
3567 my ($config, $dep) = @_;
3568
3569 if (defined($depends{$config})) {
3570 $depends{$config} .= " " . $dep;
3571 } else {
3572 $depends{$config} = $dep;
3573 }
3574
3575 # record the number of configs depending on $dep
3576 if (defined $depcount{$dep}) {
3577 $depcount{$dep}++;
3578 } else {
3579 $depcount{$dep} = 1;
3580 }
3581}
3582
3583# taken from streamline_config.pl
3584sub read_kconfig {
3585 my ($kconfig) = @_;
3586
3587 my $state = "NONE";
3588 my $config;
3589 my @kconfigs;
3590
3591 my $cont = 0;
3592 my $line;
3593
3594 if (! -f $kconfig) {
3595 doprint "file $kconfig does not exist, skipping\n";
3596 return;
3597 }
3598
3599 open(KIN, "$kconfig")
3600 or dodie "Can't open $kconfig";
3601 while (<KIN>) {
3602 chomp;
3603
3604 # Make sure that lines ending with \ continue
3605 if ($cont) {
3606 $_ = $line . " " . $_;
3607 }
3608
3609 if (s/\\$//) {
3610 $cont = 1;
3611 $line = $_;
3612 next;
3613 }
3614
3615 $cont = 0;
3616
3617 # collect any Kconfig sources
3618 if (/^source\s*"(.*)"/) {
3619 $kconfigs[$#kconfigs+1] = $1;
3620 }
3621
3622 # configs found
3623 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3624 $state = "NEW";
3625 $config = $2;
3626
3627 for (my $i = 0; $i < $iflevel; $i++) {
3628 add_dep $config, $ifdeps[$i];
3629 }
3630
3631 # collect the depends for the config
3632 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3633
3634 add_dep $config, $1;
3635
3636 # Get the configs that select this config
3637 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3638
3639 # selected by depends on config
3640 add_dep $1, $config;
3641
3642 # Check for if statements
3643 } elsif (/^if\s+(.*\S)\s*$/) {
3644 my $deps = $1;
3645 # remove beginning and ending non text
3646 $deps =~ s/^[^a-zA-Z0-9_]*//;
3647 $deps =~ s/[^a-zA-Z0-9_]*$//;
3648
3649 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3650
3651 $ifdeps[$iflevel++] = join ':', @deps;
3652
3653 } elsif (/^endif/) {
3654
3655 $iflevel-- if ($iflevel);
3656
3657 # stop on "help"
3658 } elsif (/^\s*help\s*$/) {
3659 $state = "NONE";
3660 }
3661 }
3662 close(KIN);
3663
3664 # read in any configs that were found.
3665 foreach $kconfig (@kconfigs) {
3666 if (!defined($read_kconfigs{$kconfig})) {
3667 $read_kconfigs{$kconfig} = 1;
3668 read_kconfig("$builddir/$kconfig");
3669 }
3670 }
3671}
3672
3673sub read_depends {
3674 # find out which arch this is by the kconfig file
3675 open (IN, $output_config) or
3676 dodie "Failed to read $output_config";
3677 my $arch;
3678 while (<IN>) {
3679 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3680 $arch = $1;
3681 last;
3682 }
3683 }
3684 close IN;
3685
3686 if (!defined($arch)) {
3687 doprint "Could not find arch from config file\n";
3688 doprint "no dependencies used\n";
3689 return;
3690 }
3691
3692 # arch is really the subarch, we need to know
3693 # what directory to look at.
3694 if ($arch eq "i386" || $arch eq "x86_64") {
3695 $arch = "x86";
3696 }
3697
3698 my $kconfig = "$builddir/arch/$arch/Kconfig";
3699
3700 if (! -f $kconfig && $arch =~ /\d$/) {
3701 my $orig = $arch;
3702 # some subarchs have numbers, truncate them
3703 $arch =~ s/\d*$//;
3704 $kconfig = "$builddir/arch/$arch/Kconfig";
3705 if (! -f $kconfig) {
3706 doprint "No idea what arch dir $orig is for\n";
3707 doprint "no dependencies used\n";
3708 return;
3709 }
3710 }
3711
3712 read_kconfig($kconfig);
3713}
3714
3715sub make_new_config {
3716 my @configs = @_;
3717
3718 open (OUT, ">$output_config")
3719 or dodie "Failed to write $output_config";
3720
3721 foreach my $config (@configs) {
3722 print OUT "$config\n";
3723 }
3724 close OUT;
3725}
3726
3727sub chomp_config {
3728 my ($config) = @_;
3729
3730 $config =~ s/CONFIG_//;
3731
3732 return $config;
3733}
3734
3735sub get_depends {
3736 my ($dep) = @_;
3737
3738 my $kconfig = chomp_config $dep;
3739
3740 $dep = $depends{"$kconfig"};
3741
3742 # the dep string we have saves the dependencies as they
3743 # were found, including expressions like ! && ||. We
3744 # want to split this out into just an array of configs.
3745
3746 my $valid = "A-Za-z_0-9";
3747
3748 my @configs;
3749
3750 while ($dep =~ /[$valid]/) {
3751 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3752 my $conf = "CONFIG_" . $1;
3753
3754 $configs[$#configs + 1] = $conf;
3755
3756 $dep =~ s/^[^$valid]*[$valid]+//;
3757 } else {
3758 dodie "this should never happen";
3759 }
3760 }
3761
3762 return @configs;
3763}
3764
3765sub test_this_config {
3766 my ($config) = @_;
3767
3768 my $found;
3769
3770 # if we already processed this config, skip it
3771 if (defined($processed_configs{$config})) {
3772 return undef;
3773 }
3774 $processed_configs{$config} = 1;
3775
3776 # if this config failed during this round, skip it
3777 if (defined($nochange_config{$config})) {
3778 return undef;
3779 }
3780
3781 my $kconfig = chomp_config $config;
3782
3783 # Test dependencies first
3784 if (defined($depends{"$kconfig"})) {
3785 my @parents = get_depends $config;
3786 foreach my $parent (@parents) {
3787 # if the parent is in the min config, check it first
3788 next if (!defined($min_configs{$parent}));
3789 $found = test_this_config($parent);
3790 if (defined($found)) {
3791 return $found;
3792 }
3793 }
3794 }
3795
3796 # Remove this config from the list of configs
3797 # do a make olddefconfig and then read the resulting
3798 # .config to make sure it is missing the config that
3799 # we had before
3800 my %configs = %min_configs;
3801 $configs{$config} = "# $config is not set";
3802 make_new_config ((values %configs), (values %keep_configs));
3803 make_oldconfig;
3804 delete $configs{$config};
3805 undef %configs;
3806 assign_configs \%configs, $output_config;
3807
3808 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3809 return $config;
3810 }
3811
3812 doprint "disabling config $config did not change .config\n";
3813
3814 $nochange_config{$config} = 1;
3815
3816 return undef;
3817}
3818
3819sub make_min_config {
3820 my ($i) = @_;
3821
3822 my $type = $minconfig_type;
3823 if ($type ne "boot" && $type ne "test") {
3824 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3825 " make_min_config works only with 'boot' and 'test'\n" and return;
3826 }
3827
3828 if (!defined($output_minconfig)) {
3829 fail "OUTPUT_MIN_CONFIG not defined" and return;
3830 }
3831
3832 # If output_minconfig exists, and the start_minconfig
3833 # came from min_config, than ask if we should use
3834 # that instead.
3835 if (-f $output_minconfig && !$start_minconfig_defined) {
3836 print "$output_minconfig exists\n";
3837 if (!defined($use_output_minconfig)) {
3838 if (read_yn " Use it as minconfig?") {
3839 $start_minconfig = $output_minconfig;
3840 }
3841 } elsif ($use_output_minconfig > 0) {
3842 doprint "Using $output_minconfig as MIN_CONFIG\n";
3843 $start_minconfig = $output_minconfig;
3844 } else {
3845 doprint "Set to still use MIN_CONFIG as starting point\n";
3846 }
3847 }
3848
3849 if (!defined($start_minconfig)) {
3850 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3851 }
3852
3853 my $temp_config = "$tmpdir/temp_config";
3854
3855 # First things first. We build an allnoconfig to find
3856 # out what the defaults are that we can't touch.
3857 # Some are selections, but we really can't handle selections.
3858
3859 my $save_minconfig = $minconfig;
3860 undef $minconfig;
3861
3862 run_command "$make allnoconfig" or return 0;
3863
3864 read_depends;
3865
3866 process_config_ignore $output_config;
3867
3868 undef %save_configs;
3869 undef %min_configs;
3870
3871 if (defined($ignore_config)) {
3872 # make sure the file exists
3873 `touch $ignore_config`;
3874 assign_configs \%save_configs, $ignore_config;
3875 }
3876
3877 %keep_configs = %save_configs;
3878
3879 doprint "Load initial configs from $start_minconfig\n";
3880
3881 # Look at the current min configs, and save off all the
3882 # ones that were set via the allnoconfig
3883 assign_configs \%min_configs, $start_minconfig;
3884
3885 my @config_keys = keys %min_configs;
3886
3887 # All configs need a depcount
3888 foreach my $config (@config_keys) {
3889 my $kconfig = chomp_config $config;
3890 if (!defined $depcount{$kconfig}) {
3891 $depcount{$kconfig} = 0;
3892 }
3893 }
3894
3895 # Remove anything that was set by the make allnoconfig
3896 # we shouldn't need them as they get set for us anyway.
3897 foreach my $config (@config_keys) {
3898 # Remove anything in the ignore_config
3899 if (defined($keep_configs{$config})) {
3900 my $file = $ignore_config;
3901 $file =~ s,.*/(.*?)$,$1,;
3902 doprint "$config set by $file ... ignored\n";
3903 delete $min_configs{$config};
3904 next;
3905 }
3906 # But make sure the settings are the same. If a min config
3907 # sets a selection, we do not want to get rid of it if
3908 # it is not the same as what we have. Just move it into
3909 # the keep configs.
3910 if (defined($config_ignore{$config})) {
3911 if ($config_ignore{$config} ne $min_configs{$config}) {
3912 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3913 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3914 $keep_configs{$config} = $min_configs{$config};
3915 } else {
3916 doprint "$config set by allnoconfig ... ignored\n";
3917 }
3918 delete $min_configs{$config};
3919 }
3920 }
3921
3922 my $done = 0;
3923 my $take_two = 0;
3924
3925 while (!$done) {
3926 my $config;
3927 my $found;
3928
3929 # Now disable each config one by one and do a make oldconfig
3930 # till we find a config that changes our list.
3931
3932 my @test_configs = keys %min_configs;
3933
3934 # Sort keys by who is most dependent on
3935 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3936 @test_configs ;
3937
3938 # Put configs that did not modify the config at the end.
3939 my $reset = 1;
3940 for (my $i = 0; $i < $#test_configs; $i++) {
3941 if (!defined($nochange_config{$test_configs[0]})) {
3942 $reset = 0;
3943 last;
3944 }
3945 # This config didn't change the .config last time.
3946 # Place it at the end
3947 my $config = shift @test_configs;
3948 push @test_configs, $config;
3949 }
3950
3951 # if every test config has failed to modify the .config file
3952 # in the past, then reset and start over.
3953 if ($reset) {
3954 undef %nochange_config;
3955 }
3956
3957 undef %processed_configs;
3958
3959 foreach my $config (@test_configs) {
3960
3961 $found = test_this_config $config;
3962
3963 last if (defined($found));
3964
3965 # oh well, try another config
3966 }
3967
3968 if (!defined($found)) {
3969 # we could have failed due to the nochange_config hash
3970 # reset and try again
3971 if (!$take_two) {
3972 undef %nochange_config;
3973 $take_two = 1;
3974 next;
3975 }
3976 doprint "No more configs found that we can disable\n";
3977 $done = 1;
3978 last;
3979 }
3980 $take_two = 0;
3981
3982 $config = $found;
3983
3984 doprint "Test with $config disabled\n";
3985
3986 # set in_bisect to keep build and monitor from dieing
3987 $in_bisect = 1;
3988
3989 my $failed = 0;
3990 build "oldconfig" or $failed = 1;
3991 if (!$failed) {
3992 start_monitor_and_install or $failed = 1;
3993
3994 if ($type eq "test" && !$failed) {
3995 do_run_test or $failed = 1;
3996 }
3997
3998 end_monitor;
3999 }
4000
4001 $in_bisect = 0;
4002
4003 if ($failed) {
4004 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
4005 # this config is needed, add it to the ignore list.
4006 $keep_configs{$config} = $min_configs{$config};
4007 $save_configs{$config} = $min_configs{$config};
4008 delete $min_configs{$config};
4009
4010 # update new ignore configs
4011 if (defined($ignore_config)) {
4012 open (OUT, ">$temp_config") or
4013 dodie "Can't write to $temp_config";
4014 foreach my $config (keys %save_configs) {
4015 print OUT "$save_configs{$config}\n";
4016 }
4017 close OUT;
4018 run_command "mv $temp_config $ignore_config" or
4019 dodie "failed to copy update to $ignore_config";
4020 }
4021
4022 } else {
4023 # We booted without this config, remove it from the minconfigs.
4024 doprint "$config is not needed, disabling\n";
4025
4026 delete $min_configs{$config};
4027
4028 # Also disable anything that is not enabled in this config
4029 my %configs;
4030 assign_configs \%configs, $output_config;
4031 my @config_keys = keys %min_configs;
4032 foreach my $config (@config_keys) {
4033 if (!defined($configs{$config})) {
4034 doprint "$config is not set, disabling\n";
4035 delete $min_configs{$config};
4036 }
4037 }
4038
4039 # Save off all the current mandatory configs
4040 open (OUT, ">$temp_config") or
4041 dodie "Can't write to $temp_config";
4042 foreach my $config (keys %keep_configs) {
4043 print OUT "$keep_configs{$config}\n";
4044 }
4045 foreach my $config (keys %min_configs) {
4046 print OUT "$min_configs{$config}\n";
4047 }
4048 close OUT;
4049
4050 run_command "mv $temp_config $output_minconfig" or
4051 dodie "failed to copy update to $output_minconfig";
4052 }
4053
4054 doprint "Reboot and wait $sleep_time seconds\n";
4055 reboot_to_good $sleep_time;
4056 }
4057
4058 success $i;
4059 return 1;
4060}
4061
4062sub make_warnings_file {
4063 my ($i) = @_;
4064
4065 if (!defined($warnings_file)) {
4066 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4067 }
4068
4069 if ($build_type eq "nobuild") {
4070 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4071 }
4072
4073 build $build_type or dodie "Failed to build";
4074
4075 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4076
4077 open(IN, $buildlog) or dodie "Can't open $buildlog";
4078 while (<IN>) {
4079 # Some compilers use UTF-8 extended for quotes
4080 # for distcc heterogeneous systems, this causes issues
4081 s/$utf8_quote/'/g;
4082
4083 if (/$check_build_re/) {
4084 print OUT;
4085 }
4086 }
4087 close(IN);
4088
4089 close(OUT);
4090
4091 success $i;
4092}
4093
4094sub option_defined {
4095 my ($option) = @_;
4096
4097 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4098 return 1;
4099 }
4100
4101 return 0;
4102}
4103
4104sub __set_test_option {
4105 my ($name, $i) = @_;
4106
4107 my $option = "$name\[$i\]";
4108
4109 if (option_defined($option)) {
4110 return $opt{$option};
4111 }
4112
4113 foreach my $test (keys %repeat_tests) {
4114 if ($i >= $test &&
4115 $i < $test + $repeat_tests{$test}) {
4116 $option = "$name\[$test\]";
4117 if (option_defined($option)) {
4118 return $opt{$option};
4119 }
4120 }
4121 }
4122
4123 if (option_defined($name)) {
4124 return $opt{$name};
4125 }
4126
4127 return undef;
4128}
4129
4130sub set_test_option {
4131 my ($name, $i) = @_;
4132
4133 my $option = __set_test_option($name, $i);
4134 return $option if (!defined($option));
4135
4136 return eval_option($name, $option, $i);
4137}
4138
4139sub find_mailer {
4140 my ($mailer) = @_;
4141
4142 my @paths = split /:/, $ENV{PATH};
4143
4144 # sendmail is usually in /usr/sbin
4145 $paths[$#paths + 1] = "/usr/sbin";
4146
4147 foreach my $path (@paths) {
4148 if (-x "$path/$mailer") {
4149 return $path;
4150 }
4151 }
4152
4153 return undef;
4154}
4155
4156sub do_send_mail {
4157 my ($subject, $message, $file) = @_;
4158
4159 if (!defined($mail_path)) {
4160 # find the mailer
4161 $mail_path = find_mailer $mailer;
4162 if (!defined($mail_path)) {
4163 die "\nCan not find $mailer in PATH\n";
4164 }
4165 }
4166
4167 my $header_file = "$tmpdir/header";
4168 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4169 print HEAD "To: $mailto\n";
4170 print HEAD "Subject: $subject\n\n";
4171 print HEAD "$message\n";
4172 close HEAD;
4173
4174 if (!defined($mail_command)) {
4175 if ($mailer eq "mail" || $mailer eq "mailx") {
4176 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4177 } elsif ($mailer eq "sendmail" ) {
4178 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4179 } else {
4180 die "\nYour mailer: $mailer is not supported.\n";
4181 }
4182 }
4183
4184 if (defined($file)) {
4185 $mail_command =~ s/\$BODY_FILE/$file/g;
4186 } else {
4187 $mail_command =~ s/\$BODY_FILE//g;
4188 }
4189
4190 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4191 $mail_command =~ s/\$MAILER/$mailer/g;
4192 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4193 $mail_command =~ s/\$MAILTO/$mailto/g;
4194 $mail_command =~ s/\$SUBJECT/$subject/g;
4195 $mail_command =~ s/\$MESSAGE/$message/g;
4196
4197 my $ret = run_command $mail_command;
4198 if (!$ret && defined($file)) {
4199 # try again without the file
4200 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4201 do_send_email($subject, $message);
4202 }
4203}
4204
4205sub send_email {
4206 if (defined($mailto)) {
4207 if (!defined($mailer)) {
4208 doprint "No email sent: email or mailer not specified in config.\n";
4209 return;
4210 }
4211 do_send_mail @_;
4212 }
4213}
4214
4215sub cancel_test {
4216 if ($monitor_cnt) {
4217 end_monitor;
4218 }
4219 if ($email_when_canceled) {
4220 my $name = get_test_name;
4221 send_email("KTEST: Your [$name] test was cancelled",
4222 "Your test started at $script_start_time was cancelled: sig int");
4223 }
4224 die "\nCaught Sig Int, test interrupted: $!\n"
4225}
4226
4227$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4228
4229if ($#ARGV == 0) {
4230 $ktest_config = $ARGV[0];
4231 if (! -f $ktest_config) {
4232 print "$ktest_config does not exist.\n";
4233 if (!read_yn "Create it?") {
4234 exit 0;
4235 }
4236 }
4237}
4238
4239if (! -f $ktest_config) {
4240 $newconfig = 1;
4241 get_test_case;
4242 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4243 print OUT << "EOF"
4244# Generated by ktest.pl
4245#
4246
4247# PWD is a ktest.pl variable that will result in the process working
4248# directory that ktest.pl is executed in.
4249
4250# THIS_DIR is automatically assigned the PWD of the path that generated
4251# the config file. It is best to use this variable when assigning other
4252# directory paths within this directory. This allows you to easily
4253# move the test cases to other locations or to other machines.
4254#
4255THIS_DIR := $variable{"PWD"}
4256
4257# Define each test with TEST_START
4258# The config options below it will override the defaults
4259TEST_START
4260TEST_TYPE = $default{"TEST_TYPE"}
4261
4262DEFAULTS
4263EOF
4264;
4265 close(OUT);
4266}
4267read_config $ktest_config;
4268
4269if (defined($opt{"LOG_FILE"})) {
4270 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4271}
4272
4273# Append any configs entered in manually to the config file.
4274my @new_configs = keys %entered_configs;
4275if ($#new_configs >= 0) {
4276 print "\nAppending entered in configs to $ktest_config\n";
4277 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4278 foreach my $config (@new_configs) {
4279 print OUT "$config = $entered_configs{$config}\n";
4280 $opt{$config} = process_variables($entered_configs{$config});
4281 }
4282}
4283
4284if (defined($opt{"LOG_FILE"})) {
4285 if ($opt{"CLEAR_LOG"}) {
4286 unlink $opt{"LOG_FILE"};
4287 }
4288 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4289 LOG->autoflush(1);
4290}
4291
4292doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4293
4294for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4295
4296 if (!$i) {
4297 doprint "DEFAULT OPTIONS:\n";
4298 } else {
4299 doprint "\nTEST $i OPTIONS";
4300 if (defined($repeat_tests{$i})) {
4301 $repeat = $repeat_tests{$i};
4302 doprint " ITERATE $repeat";
4303 }
4304 doprint "\n";
4305 }
4306
4307 foreach my $option (sort keys %opt) {
4308 if ($option =~ /\[(\d+)\]$/) {
4309 next if ($i != $1);
4310 } else {
4311 next if ($i);
4312 }
4313
4314 doprint "$option = $opt{$option}\n";
4315 }
4316}
4317
4318$SIG{INT} = qw(cancel_test);
4319
4320# First we need to do is the builds
4321for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4322
4323 # Do not reboot on failing test options
4324 $no_reboot = 1;
4325 $reboot_success = 0;
4326
4327 $have_version = 0;
4328
4329 $iteration = $i;
4330
4331 $build_time = 0;
4332 $install_time = 0;
4333 $reboot_time = 0;
4334 $test_time = 0;
4335
4336 undef %force_config;
4337
4338 my $makecmd = set_test_option("MAKE_CMD", $i);
4339
4340 $outputdir = set_test_option("OUTPUT_DIR", $i);
4341 $builddir = set_test_option("BUILD_DIR", $i);
4342
4343 chdir $builddir || dodie "can't change directory to $builddir";
4344
4345 if (!-d $outputdir) {
4346 mkpath($outputdir) or
4347 dodie "can't create $outputdir";
4348 }
4349
4350 $make = "$makecmd O=$outputdir";
4351
4352 # Load all the options into their mapped variable names
4353 foreach my $opt (keys %option_map) {
4354 ${$option_map{$opt}} = set_test_option($opt, $i);
4355 }
4356
4357 $start_minconfig_defined = 1;
4358
4359 # The first test may override the PRE_KTEST option
4360 if ($i == 1) {
4361 if (defined($pre_ktest)) {
4362 doprint "\n";
4363 run_command $pre_ktest;
4364 }
4365 if ($email_when_started) {
4366 my $name = get_test_name;
4367 send_email("KTEST: Your [$name] test was started",
4368 "Your test was started on $script_start_time");
4369 }
4370 }
4371
4372 # Any test can override the POST_KTEST option
4373 # The last test takes precedence.
4374 if (defined($post_ktest)) {
4375 $final_post_ktest = $post_ktest;
4376 }
4377
4378 if (!defined($start_minconfig)) {
4379 $start_minconfig_defined = 0;
4380 $start_minconfig = $minconfig;
4381 }
4382
4383 if (!-d $tmpdir) {
4384 mkpath($tmpdir) or
4385 dodie "can't create $tmpdir";
4386 }
4387
4388 $ENV{"SSH_USER"} = $ssh_user;
4389 $ENV{"MACHINE"} = $machine;
4390
4391 $buildlog = "$tmpdir/buildlog-$machine";
4392 $testlog = "$tmpdir/testlog-$machine";
4393 $dmesg = "$tmpdir/dmesg-$machine";
4394 $output_config = "$outputdir/.config";
4395
4396 if (!$buildonly) {
4397 $target = "$ssh_user\@$machine";
4398 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4399 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4400 } elsif ($reboot_type eq "grub2") {
4401 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4402 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4403 } elsif ($reboot_type eq "syslinux") {
4404 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4405 }
4406 }
4407
4408 my $run_type = $build_type;
4409 if ($test_type eq "patchcheck") {
4410 $run_type = $patchcheck_type;
4411 } elsif ($test_type eq "bisect") {
4412 $run_type = $bisect_type;
4413 } elsif ($test_type eq "config_bisect") {
4414 $run_type = $config_bisect_type;
4415 } elsif ($test_type eq "make_min_config") {
4416 $run_type = "";
4417 } elsif ($test_type eq "make_warnings_file") {
4418 $run_type = "";
4419 }
4420
4421 # mistake in config file?
4422 if (!defined($run_type)) {
4423 $run_type = "ERROR";
4424 }
4425
4426 my $installme = "";
4427 $installme = " no_install" if ($no_install);
4428
4429 my $name = "";
4430
4431 if (defined($test_name)) {
4432 $name = " ($test_name)";
4433 }
4434
4435 doprint "\n\n";
4436
4437 if (defined($opt{"LOG_FILE"})) {
4438 $test_log_start = tell(LOG);
4439 }
4440
4441 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4442
4443 if (defined($pre_test)) {
4444 my $ret = run_command $pre_test;
4445 if (!$ret && defined($pre_test_die) &&
4446 $pre_test_die) {
4447 dodie "failed to pre_test\n";
4448 }
4449 }
4450
4451 unlink $dmesg;
4452 unlink $buildlog;
4453 unlink $testlog;
4454
4455 if (defined($addconfig)) {
4456 my $min = $minconfig;
4457 if (!defined($minconfig)) {
4458 $min = "";
4459 }
4460 run_command "cat $addconfig $min > $tmpdir/add_config" or
4461 dodie "Failed to create temp config";
4462 $minconfig = "$tmpdir/add_config";
4463 }
4464
4465 if (defined($checkout)) {
4466 run_command "git checkout $checkout" or
4467 dodie "failed to checkout $checkout";
4468 }
4469
4470 $no_reboot = 0;
4471
4472 # A test may opt to not reboot the box
4473 if ($reboot_on_success) {
4474 $reboot_success = 1;
4475 }
4476
4477 if ($test_type eq "bisect") {
4478 bisect $i;
4479 next;
4480 } elsif ($test_type eq "config_bisect") {
4481 config_bisect $i;
4482 next;
4483 } elsif ($test_type eq "patchcheck") {
4484 patchcheck $i;
4485 next;
4486 } elsif ($test_type eq "make_min_config") {
4487 make_min_config $i;
4488 next;
4489 } elsif ($test_type eq "make_warnings_file") {
4490 $no_reboot = 1;
4491 make_warnings_file $i;
4492 next;
4493 }
4494
4495 if ($build_type ne "nobuild") {
4496 build $build_type or next;
4497 check_buildlog or next;
4498 }
4499
4500 if ($test_type eq "install") {
4501 get_version;
4502 install;
4503 success $i;
4504 next;
4505 }
4506
4507 if ($test_type ne "build") {
4508 my $failed = 0;
4509 start_monitor_and_install or $failed = 1;
4510
4511 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4512 do_run_test or $failed = 1;
4513 }
4514 end_monitor;
4515 if ($failed) {
4516 print_times;
4517 next;
4518 }
4519 }
4520
4521 print_times;
4522
4523 success $i;
4524}
4525
4526if (defined($final_post_ktest)) {
4527
4528 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4529 run_command $cp_final_post_ktest;
4530}
4531
4532if ($opt{"POWEROFF_ON_SUCCESS"}) {
4533 halt;
4534} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4535 reboot_to_good;
4536} elsif (defined($switch_to_good)) {
4537 # still need to get to the good kernel
4538 run_command $switch_to_good;
4539}
4540
4541doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4542
4543if ($email_when_finished) {
4544 send_email("KTEST: Your test has finished!",
4545 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4546}
4547
4548if (defined($opt{"LOG_FILE"})) {
4549 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4550 close LOG;
4551}
4552
4553exit 0;
4554
4555##
4556# The following are here to standardize tabs/spaces/etc across the most likely editors
4557###
4558
4559# Local Variables:
4560# mode: perl
4561# End:
4562# vim: softtabstop=4