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