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