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1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14use IO::Handle;
15
16my $VERSION = "0.2";
17
18$| = 1;
19
20my %opt;
21my %repeat_tests;
22my %repeats;
23my %evals;
24
25#default opts
26my %default = (
27 "MAILER" => "sendmail", # default mailer
28 "EMAIL_ON_ERROR" => 1,
29 "EMAIL_WHEN_FINISHED" => 1,
30 "EMAIL_WHEN_CANCELED" => 0,
31 "EMAIL_WHEN_STARTED" => 0,
32 "NUM_TESTS" => 1,
33 "TEST_TYPE" => "build",
34 "BUILD_TYPE" => "oldconfig",
35 "MAKE_CMD" => "make",
36 "CLOSE_CONSOLE_SIGNAL" => "INT",
37 "TIMEOUT" => 120,
38 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
39 "SLEEP_TIME" => 60, # sleep time between tests
40 "BUILD_NOCLEAN" => 0,
41 "REBOOT_ON_ERROR" => 0,
42 "POWEROFF_ON_ERROR" => 0,
43 "REBOOT_ON_SUCCESS" => 1,
44 "POWEROFF_ON_SUCCESS" => 0,
45 "BUILD_OPTIONS" => "",
46 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
47 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
48 "CLEAR_LOG" => 0,
49 "BISECT_MANUAL" => 0,
50 "BISECT_SKIP" => 1,
51 "BISECT_TRIES" => 1,
52 "MIN_CONFIG_TYPE" => "boot",
53 "SUCCESS_LINE" => "login:",
54 "DETECT_TRIPLE_FAULT" => 1,
55 "NO_INSTALL" => 0,
56 "BOOTED_TIMEOUT" => 1,
57 "DIE_ON_FAILURE" => 1,
58 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
59 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
60 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
61 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
62 "REBOOT_RETURN_CODE" => 255,
63 "STOP_AFTER_SUCCESS" => 10,
64 "STOP_AFTER_FAILURE" => 60,
65 "STOP_TEST_AFTER" => 600,
66 "MAX_MONITOR_WAIT" => 1800,
67 "GRUB_REBOOT" => "grub2-reboot",
68 "GRUB_BLS_GET" => "grubby --info=ALL",
69 "SYSLINUX" => "extlinux",
70 "SYSLINUX_PATH" => "/boot/extlinux",
71 "CONNECT_TIMEOUT" => 25,
72
73# required, and we will ask users if they don't have them but we keep the default
74# value something that is common.
75 "REBOOT_TYPE" => "grub",
76 "LOCALVERSION" => "-test",
77 "SSH_USER" => "root",
78 "BUILD_TARGET" => "arch/x86/boot/bzImage",
79 "TARGET_IMAGE" => "/boot/vmlinuz-test",
80
81 "LOG_FILE" => undef,
82 "IGNORE_UNUSED" => 0,
83);
84
85my $test_log_start = 0;
86
87my $ktest_config = "ktest.conf";
88my $version;
89my $have_version = 0;
90my $machine;
91my $last_machine;
92my $ssh_user;
93my $tmpdir;
94my $builddir;
95my $outputdir;
96my $output_config;
97my $test_type;
98my $build_type;
99my $build_options;
100my $final_post_ktest;
101my $pre_ktest;
102my $post_ktest;
103my $pre_test;
104my $pre_test_die;
105my $post_test;
106my $pre_build;
107my $post_build;
108my $pre_build_die;
109my $post_build_die;
110my $reboot_type;
111my $reboot_script;
112my $power_cycle;
113my $reboot;
114my $reboot_return_code;
115my $reboot_on_error;
116my $switch_to_good;
117my $switch_to_test;
118my $poweroff_on_error;
119my $reboot_on_success;
120my $die_on_failure;
121my $powercycle_after_reboot;
122my $poweroff_after_halt;
123my $max_monitor_wait;
124my $ssh_exec;
125my $scp_to_target;
126my $scp_to_target_install;
127my $power_off;
128my $grub_menu;
129my $last_grub_menu;
130my $grub_file;
131my $grub_number;
132my $grub_reboot;
133my $grub_bls_get;
134my $syslinux;
135my $syslinux_path;
136my $syslinux_label;
137my $target;
138my $make;
139my $pre_install;
140my $post_install;
141my $no_install;
142my $noclean;
143my $minconfig;
144my $start_minconfig;
145my $start_minconfig_defined;
146my $output_minconfig;
147my $minconfig_type;
148my $use_output_minconfig;
149my $warnings_file;
150my $ignore_config;
151my $ignore_errors;
152my $addconfig;
153my $in_bisect = 0;
154my $bisect_bad_commit = "";
155my $reverse_bisect;
156my $bisect_manual;
157my $bisect_skip;
158my $bisect_tries;
159my $config_bisect_good;
160my $bisect_ret_good;
161my $bisect_ret_bad;
162my $bisect_ret_skip;
163my $bisect_ret_abort;
164my $bisect_ret_default;
165my $in_patchcheck = 0;
166my $run_test;
167my $buildlog;
168my $testlog;
169my $dmesg;
170my $monitor_fp;
171my $monitor_pid;
172my $monitor_cnt = 0;
173my $sleep_time;
174my $bisect_sleep_time;
175my $patchcheck_sleep_time;
176my $ignore_warnings;
177my $store_failures;
178my $store_successes;
179my $test_name;
180my $timeout;
181my $connect_timeout;
182my $config_bisect_exec;
183my $booted_timeout;
184my $detect_triplefault;
185my $console;
186my $close_console_signal;
187my $reboot_success_line;
188my $success_line;
189my $stop_after_success;
190my $stop_after_failure;
191my $stop_test_after;
192my $build_target;
193my $target_image;
194my $checkout;
195my $localversion;
196my $iteration = 0;
197my $successes = 0;
198my $stty_orig;
199my $run_command_status = 0;
200
201my $bisect_good;
202my $bisect_bad;
203my $bisect_type;
204my $bisect_start;
205my $bisect_replay;
206my $bisect_files;
207my $bisect_reverse;
208my $bisect_check;
209
210my $config_bisect;
211my $config_bisect_type;
212my $config_bisect_check;
213
214my $patchcheck_type;
215my $patchcheck_start;
216my $patchcheck_cherry;
217my $patchcheck_end;
218
219my $build_time;
220my $install_time;
221my $reboot_time;
222my $test_time;
223
224my $pwd;
225my $dirname = $FindBin::Bin;
226
227my $mailto;
228my $mailer;
229my $mail_path;
230my $mail_max_size;
231my $mail_command;
232my $email_on_error;
233my $email_when_finished;
234my $email_when_started;
235my $email_when_canceled;
236
237my $script_start_time = localtime();
238
239# set when a test is something other that just building or install
240# which would require more options.
241my $buildonly = 1;
242
243# tell build not to worry about warnings, even when WARNINGS_FILE is set
244my $warnings_ok = 0;
245
246# set when creating a new config
247my $newconfig = 0;
248
249my %entered_configs;
250my %config_help;
251my %variable;
252
253# force_config is the list of configs that we force enabled (or disabled)
254# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
255my %force_config;
256
257# do not force reboots on config problems
258my $no_reboot = 1;
259
260# reboot on success
261my $reboot_success = 0;
262
263my %option_map = (
264 "MAILTO" => \$mailto,
265 "MAILER" => \$mailer,
266 "MAIL_PATH" => \$mail_path,
267 "MAIL_MAX_SIZE" => \$mail_max_size,
268 "MAIL_COMMAND" => \$mail_command,
269 "EMAIL_ON_ERROR" => \$email_on_error,
270 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
271 "EMAIL_WHEN_STARTED" => \$email_when_started,
272 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
273 "MACHINE" => \$machine,
274 "SSH_USER" => \$ssh_user,
275 "TMP_DIR" => \$tmpdir,
276 "OUTPUT_DIR" => \$outputdir,
277 "BUILD_DIR" => \$builddir,
278 "TEST_TYPE" => \$test_type,
279 "PRE_KTEST" => \$pre_ktest,
280 "POST_KTEST" => \$post_ktest,
281 "PRE_TEST" => \$pre_test,
282 "PRE_TEST_DIE" => \$pre_test_die,
283 "POST_TEST" => \$post_test,
284 "BUILD_TYPE" => \$build_type,
285 "BUILD_OPTIONS" => \$build_options,
286 "PRE_BUILD" => \$pre_build,
287 "POST_BUILD" => \$post_build,
288 "PRE_BUILD_DIE" => \$pre_build_die,
289 "POST_BUILD_DIE" => \$post_build_die,
290 "POWER_CYCLE" => \$power_cycle,
291 "REBOOT" => \$reboot,
292 "REBOOT_RETURN_CODE" => \$reboot_return_code,
293 "BUILD_NOCLEAN" => \$noclean,
294 "MIN_CONFIG" => \$minconfig,
295 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
296 "START_MIN_CONFIG" => \$start_minconfig,
297 "MIN_CONFIG_TYPE" => \$minconfig_type,
298 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
299 "WARNINGS_FILE" => \$warnings_file,
300 "IGNORE_CONFIG" => \$ignore_config,
301 "TEST" => \$run_test,
302 "ADD_CONFIG" => \$addconfig,
303 "REBOOT_TYPE" => \$reboot_type,
304 "GRUB_MENU" => \$grub_menu,
305 "GRUB_FILE" => \$grub_file,
306 "GRUB_REBOOT" => \$grub_reboot,
307 "GRUB_BLS_GET" => \$grub_bls_get,
308 "SYSLINUX" => \$syslinux,
309 "SYSLINUX_PATH" => \$syslinux_path,
310 "SYSLINUX_LABEL" => \$syslinux_label,
311 "PRE_INSTALL" => \$pre_install,
312 "POST_INSTALL" => \$post_install,
313 "NO_INSTALL" => \$no_install,
314 "REBOOT_SCRIPT" => \$reboot_script,
315 "REBOOT_ON_ERROR" => \$reboot_on_error,
316 "SWITCH_TO_GOOD" => \$switch_to_good,
317 "SWITCH_TO_TEST" => \$switch_to_test,
318 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
319 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
320 "DIE_ON_FAILURE" => \$die_on_failure,
321 "POWER_OFF" => \$power_off,
322 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
323 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
324 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
325 "SLEEP_TIME" => \$sleep_time,
326 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
327 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
328 "IGNORE_WARNINGS" => \$ignore_warnings,
329 "IGNORE_ERRORS" => \$ignore_errors,
330 "BISECT_MANUAL" => \$bisect_manual,
331 "BISECT_SKIP" => \$bisect_skip,
332 "BISECT_TRIES" => \$bisect_tries,
333 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
334 "BISECT_RET_GOOD" => \$bisect_ret_good,
335 "BISECT_RET_BAD" => \$bisect_ret_bad,
336 "BISECT_RET_SKIP" => \$bisect_ret_skip,
337 "BISECT_RET_ABORT" => \$bisect_ret_abort,
338 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
339 "STORE_FAILURES" => \$store_failures,
340 "STORE_SUCCESSES" => \$store_successes,
341 "TEST_NAME" => \$test_name,
342 "TIMEOUT" => \$timeout,
343 "CONNECT_TIMEOUT" => \$connect_timeout,
344 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
345 "BOOTED_TIMEOUT" => \$booted_timeout,
346 "CONSOLE" => \$console,
347 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
348 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
349 "SUCCESS_LINE" => \$success_line,
350 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
351 "STOP_AFTER_SUCCESS" => \$stop_after_success,
352 "STOP_AFTER_FAILURE" => \$stop_after_failure,
353 "STOP_TEST_AFTER" => \$stop_test_after,
354 "BUILD_TARGET" => \$build_target,
355 "SSH_EXEC" => \$ssh_exec,
356 "SCP_TO_TARGET" => \$scp_to_target,
357 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
358 "CHECKOUT" => \$checkout,
359 "TARGET_IMAGE" => \$target_image,
360 "LOCALVERSION" => \$localversion,
361
362 "BISECT_GOOD" => \$bisect_good,
363 "BISECT_BAD" => \$bisect_bad,
364 "BISECT_TYPE" => \$bisect_type,
365 "BISECT_START" => \$bisect_start,
366 "BISECT_REPLAY" => \$bisect_replay,
367 "BISECT_FILES" => \$bisect_files,
368 "BISECT_REVERSE" => \$bisect_reverse,
369 "BISECT_CHECK" => \$bisect_check,
370
371 "CONFIG_BISECT" => \$config_bisect,
372 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
373 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
374
375 "PATCHCHECK_TYPE" => \$patchcheck_type,
376 "PATCHCHECK_START" => \$patchcheck_start,
377 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
378 "PATCHCHECK_END" => \$patchcheck_end,
379);
380
381# Options may be used by other options, record them.
382my %used_options;
383
384# default variables that can be used
385chomp ($variable{"PWD"} = `pwd`);
386$pwd = $variable{"PWD"};
387
388$config_help{"MACHINE"} = << "EOF"
389 The machine hostname that you will test.
390 For build only tests, it is still needed to differentiate log files.
391EOF
392 ;
393$config_help{"SSH_USER"} = << "EOF"
394 The box is expected to have ssh on normal bootup, provide the user
395 (most likely root, since you need privileged operations)
396EOF
397 ;
398$config_help{"BUILD_DIR"} = << "EOF"
399 The directory that contains the Linux source code (full path).
400 You can use \${PWD} that will be the path where ktest.pl is run, or use
401 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
402EOF
403 ;
404$config_help{"OUTPUT_DIR"} = << "EOF"
405 The directory that the objects will be built (full path).
406 (can not be same as BUILD_DIR)
407 You can use \${PWD} that will be the path where ktest.pl is run, or use
408 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
409EOF
410 ;
411$config_help{"BUILD_TARGET"} = << "EOF"
412 The location of the compiled file to copy to the target.
413 (relative to OUTPUT_DIR)
414EOF
415 ;
416$config_help{"BUILD_OPTIONS"} = << "EOF"
417 Options to add to \"make\" when building.
418 i.e. -j20
419EOF
420 ;
421$config_help{"TARGET_IMAGE"} = << "EOF"
422 The place to put your image on the test machine.
423EOF
424 ;
425$config_help{"POWER_CYCLE"} = << "EOF"
426 A script or command to reboot the box.
427
428 Here is a digital loggers power switch example
429 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
430
431 Here is an example to reboot a virtual box on the current host
432 with the name "Guest".
433 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
434EOF
435 ;
436$config_help{"CONSOLE"} = << "EOF"
437 The script or command that reads the console
438
439 If you use ttywatch server, something like the following would work.
440CONSOLE = nc -d localhost 3001
441
442 For a virtual machine with guest name "Guest".
443CONSOLE = virsh console Guest
444EOF
445 ;
446$config_help{"LOCALVERSION"} = << "EOF"
447 Required version ending to differentiate the test
448 from other linux builds on the system.
449EOF
450 ;
451$config_help{"REBOOT_TYPE"} = << "EOF"
452 Way to reboot the box to the test kernel.
453 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
454
455 If you specify grub, it will assume grub version 1
456 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
457 and select that target to reboot to the kernel. If this is not
458 your setup, then specify "script" and have a command or script
459 specified in REBOOT_SCRIPT to boot to the target.
460
461 The entry in /boot/grub/menu.lst must be entered in manually.
462 The test will not modify that file.
463
464 If you specify grub2, then you also need to specify both \$GRUB_MENU
465 and \$GRUB_FILE.
466
467 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
468
469 If you specify syslinux, then you may use SYSLINUX to define the syslinux
470 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
471 the syslinux install (defaults to /boot/extlinux). But you have to specify
472 SYSLINUX_LABEL to define the label to boot to for the test kernel.
473EOF
474 ;
475$config_help{"GRUB_MENU"} = << "EOF"
476 The grub title name for the test kernel to boot
477 (Only mandatory if REBOOT_TYPE = grub or grub2)
478
479 Note, ktest.pl will not update the grub menu.lst, you need to
480 manually add an option for the test. ktest.pl will search
481 the grub menu.lst for this option to find what kernel to
482 reboot into.
483
484 For example, if in the /boot/grub/menu.lst the test kernel title has:
485 title Test Kernel
486 kernel vmlinuz-test
487 GRUB_MENU = Test Kernel
488
489 For grub2, a search of \$GRUB_FILE is performed for the lines
490 that begin with "menuentry". It will not detect submenus. The
491 menu must be a non-nested menu. Add the quotes used in the menu
492 to guarantee your selection, as the first menuentry with the content
493 of \$GRUB_MENU that is found will be used.
494
495 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
496 command for the lines that begin with "title".
497EOF
498 ;
499$config_help{"GRUB_FILE"} = << "EOF"
500 If grub2 is used, the full path for the grub.cfg file is placed
501 here. Use something like /boot/grub2/grub.cfg to search.
502EOF
503 ;
504$config_help{"SYSLINUX_LABEL"} = << "EOF"
505 If syslinux is used, the label that boots the target kernel must
506 be specified with SYSLINUX_LABEL.
507EOF
508 ;
509$config_help{"REBOOT_SCRIPT"} = << "EOF"
510 A script to reboot the target into the test kernel
511 (Only mandatory if REBOOT_TYPE = script)
512EOF
513 ;
514
515# used with process_expression()
516my $d = 0;
517
518# defined before get_test_name()
519my $in_die = 0;
520
521# defined before process_warning_line()
522my $check_build_re = ".*:.*(warning|error|Error):.*";
523my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
524
525# defined before child_finished()
526my $child_done;
527
528# config_ignore holds the configs that were set (or unset) for
529# a good config and we will ignore these configs for the rest
530# of a config bisect. These configs stay as they were.
531my %config_ignore;
532
533# config_set holds what all configs were set as.
534my %config_set;
535
536# config_off holds the set of configs that the bad config had disabled.
537# We need to record them and set them in the .config when running
538# olddefconfig, because olddefconfig keeps the defaults.
539my %config_off;
540
541# config_off_tmp holds a set of configs to turn off for now
542my @config_off_tmp;
543
544# config_list is the set of configs that are being tested
545my %config_list;
546my %null_config;
547
548my %dependency;
549
550# found above run_config_bisect()
551my $pass = 1;
552
553# found above add_dep()
554
555my %depends;
556my %depcount;
557my $iflevel = 0;
558my @ifdeps;
559
560# prevent recursion
561my %read_kconfigs;
562
563# found above test_this_config()
564my %min_configs;
565my %keep_configs;
566my %save_configs;
567my %processed_configs;
568my %nochange_config;
569
570#
571# These are first defined here, main function later on
572#
573sub run_command;
574sub start_monitor;
575sub end_monitor;
576sub wait_for_monitor;
577
578sub _logit {
579 if (defined($opt{"LOG_FILE"})) {
580 print LOG @_;
581 }
582}
583
584sub logit {
585 if (defined($opt{"LOG_FILE"})) {
586 _logit @_;
587 } else {
588 print @_;
589 }
590}
591
592sub doprint {
593 print @_;
594 _logit @_;
595}
596
597sub read_prompt {
598 my ($cancel, $prompt) = @_;
599
600 my $ans;
601
602 for (;;) {
603 if ($cancel) {
604 print "$prompt [y/n/C] ";
605 } else {
606 print "$prompt [Y/n] ";
607 }
608 $ans = <STDIN>;
609 chomp $ans;
610 if ($ans =~ /^\s*$/) {
611 if ($cancel) {
612 $ans = "c";
613 } else {
614 $ans = "y";
615 }
616 }
617 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
618 if ($cancel) {
619 last if ($ans =~ /^c$/i);
620 print "Please answer either 'y', 'n' or 'c'.\n";
621 } else {
622 print "Please answer either 'y' or 'n'.\n";
623 }
624 }
625 if ($ans =~ /^c/i) {
626 exit;
627 }
628 if ($ans !~ /^y$/i) {
629 return 0;
630 }
631 return 1;
632}
633
634sub read_yn {
635 my ($prompt) = @_;
636
637 return read_prompt 0, $prompt;
638}
639
640sub read_ync {
641 my ($prompt) = @_;
642
643 return read_prompt 1, $prompt;
644}
645
646sub get_mandatory_config {
647 my ($config) = @_;
648 my $ans;
649
650 return if (defined($opt{$config}));
651
652 if (defined($config_help{$config})) {
653 print "\n";
654 print $config_help{$config};
655 }
656
657 for (;;) {
658 print "$config = ";
659 if (defined($default{$config}) && length($default{$config})) {
660 print "\[$default{$config}\] ";
661 }
662 $ans = <STDIN>;
663 $ans =~ s/^\s*(.*\S)\s*$/$1/;
664 if ($ans =~ /^\s*$/) {
665 if ($default{$config}) {
666 $ans = $default{$config};
667 } else {
668 print "Your answer can not be blank\n";
669 next;
670 }
671 }
672 $entered_configs{$config} = ${ans};
673 last;
674 }
675}
676
677sub show_time {
678 my ($time) = @_;
679
680 my $hours = 0;
681 my $minutes = 0;
682
683 if ($time > 3600) {
684 $hours = int($time / 3600);
685 $time -= $hours * 3600;
686 }
687 if ($time > 60) {
688 $minutes = int($time / 60);
689 $time -= $minutes * 60;
690 }
691
692 if ($hours > 0) {
693 doprint "$hours hour";
694 doprint "s" if ($hours > 1);
695 doprint " ";
696 }
697
698 if ($minutes > 0) {
699 doprint "$minutes minute";
700 doprint "s" if ($minutes > 1);
701 doprint " ";
702 }
703
704 doprint "$time second";
705 doprint "s" if ($time != 1);
706}
707
708sub print_times {
709 doprint "\n";
710 if ($build_time) {
711 doprint "Build time: ";
712 show_time($build_time);
713 doprint "\n";
714 }
715 if ($install_time) {
716 doprint "Install time: ";
717 show_time($install_time);
718 doprint "\n";
719 }
720 if ($reboot_time) {
721 doprint "Reboot time: ";
722 show_time($reboot_time);
723 doprint "\n";
724 }
725 if ($test_time) {
726 doprint "Test time: ";
727 show_time($test_time);
728 doprint "\n";
729 }
730 # reset for iterations like bisect
731 $build_time = 0;
732 $install_time = 0;
733 $reboot_time = 0;
734 $test_time = 0;
735}
736
737sub get_mandatory_configs {
738 get_mandatory_config("MACHINE");
739 get_mandatory_config("BUILD_DIR");
740 get_mandatory_config("OUTPUT_DIR");
741
742 if ($newconfig) {
743 get_mandatory_config("BUILD_OPTIONS");
744 }
745
746 # options required for other than just building a kernel
747 if (!$buildonly) {
748 get_mandatory_config("POWER_CYCLE");
749 get_mandatory_config("CONSOLE");
750 }
751
752 # options required for install and more
753 if ($buildonly != 1) {
754 get_mandatory_config("SSH_USER");
755 get_mandatory_config("BUILD_TARGET");
756 get_mandatory_config("TARGET_IMAGE");
757 }
758
759 get_mandatory_config("LOCALVERSION");
760
761 return if ($buildonly);
762
763 my $rtype = $opt{"REBOOT_TYPE"};
764
765 if (!defined($rtype)) {
766 if (!defined($opt{"GRUB_MENU"})) {
767 get_mandatory_config("REBOOT_TYPE");
768 $rtype = $entered_configs{"REBOOT_TYPE"};
769 } else {
770 $rtype = "grub";
771 }
772 }
773
774 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
775 get_mandatory_config("GRUB_MENU");
776 }
777
778 if ($rtype eq "grub2") {
779 get_mandatory_config("GRUB_MENU");
780 get_mandatory_config("GRUB_FILE");
781 }
782
783 if ($rtype eq "syslinux") {
784 get_mandatory_config("SYSLINUX_LABEL");
785 }
786}
787
788sub process_variables {
789 my ($value, $remove_undef) = @_;
790 my $retval = "";
791
792 # We want to check for '\', and it is just easier
793 # to check the previous characet of '$' and not need
794 # to worry if '$' is the first character. By adding
795 # a space to $value, we can just check [^\\]\$ and
796 # it will still work.
797 $value = " $value";
798
799 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
800 my $begin = $1;
801 my $var = $2;
802 my $end = $3;
803 # append beginning of value to retval
804 $retval = "$retval$begin";
805 if ($var =~ s/^shell\s+//) {
806 $retval = `$var`;
807 if ($?) {
808 doprint "WARNING: $var returned an error\n";
809 } else {
810 chomp $retval;
811 }
812 } elsif (defined($variable{$var})) {
813 $retval = "$retval$variable{$var}";
814 } elsif (defined($remove_undef) && $remove_undef) {
815 # for if statements, any variable that is not defined,
816 # we simple convert to 0
817 $retval = "${retval}0";
818 } else {
819 # put back the origin piece.
820 $retval = "$retval\$\{$var\}";
821 # This could be an option that is used later, save
822 # it so we don't warn if this option is not one of
823 # ktests options.
824 $used_options{$var} = 1;
825 }
826 $value = $end;
827 }
828 $retval = "$retval$value";
829
830 # remove the space added in the beginning
831 $retval =~ s/ //;
832
833 return "$retval";
834}
835
836sub set_value {
837 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
838
839 my $prvalue = process_variables($rvalue);
840
841 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
842 $prvalue !~ /^(config_|)bisect$/ &&
843 $prvalue !~ /^build$/ &&
844 $buildonly) {
845
846 # Note if a test is something other than build, then we
847 # will need other mandatory options.
848 if ($prvalue ne "install") {
849 $buildonly = 0;
850 } else {
851 # install still limits some mandatory options.
852 $buildonly = 2;
853 }
854 }
855
856 if (defined($opt{$lvalue})) {
857 if (!$override || defined(${$overrides}{$lvalue})) {
858 my $extra = "";
859 if ($override) {
860 $extra = "In the same override section!\n";
861 }
862 die "$name: $.: Option $lvalue defined more than once!\n$extra";
863 }
864 ${$overrides}{$lvalue} = $prvalue;
865 }
866
867 $opt{$lvalue} = $prvalue;
868}
869
870sub set_eval {
871 my ($lvalue, $rvalue, $name) = @_;
872
873 my $prvalue = process_variables($rvalue);
874 my $arr;
875
876 if (defined($evals{$lvalue})) {
877 $arr = $evals{$lvalue};
878 } else {
879 $arr = [];
880 $evals{$lvalue} = $arr;
881 }
882
883 push @{$arr}, $rvalue;
884}
885
886sub set_variable {
887 my ($lvalue, $rvalue) = @_;
888
889 if ($rvalue =~ /^\s*$/) {
890 delete $variable{$lvalue};
891 } else {
892 $rvalue = process_variables($rvalue);
893 $variable{$lvalue} = $rvalue;
894 }
895}
896
897sub process_compare {
898 my ($lval, $cmp, $rval) = @_;
899
900 # remove whitespace
901
902 $lval =~ s/^\s*//;
903 $lval =~ s/\s*$//;
904
905 $rval =~ s/^\s*//;
906 $rval =~ s/\s*$//;
907
908 if ($cmp eq "==") {
909 return $lval eq $rval;
910 } elsif ($cmp eq "!=") {
911 return $lval ne $rval;
912 } elsif ($cmp eq "=~") {
913 return $lval =~ m/$rval/;
914 } elsif ($cmp eq "!~") {
915 return $lval !~ m/$rval/;
916 }
917
918 my $statement = "$lval $cmp $rval";
919 my $ret = eval $statement;
920
921 # $@ stores error of eval
922 if ($@) {
923 return -1;
924 }
925
926 return $ret;
927}
928
929sub value_defined {
930 my ($val) = @_;
931
932 return defined($variable{$2}) ||
933 defined($opt{$2});
934}
935
936sub process_expression {
937 my ($name, $val) = @_;
938
939 my $c = $d++;
940
941 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
942 my $express = $1;
943
944 if (process_expression($name, $express)) {
945 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
946 } else {
947 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
948 }
949 }
950
951 $d--;
952 my $OR = "\\|\\|";
953 my $AND = "\\&\\&";
954
955 while ($val =~ s/^(.*?)($OR|$AND)//) {
956 my $express = $1;
957 my $op = $2;
958
959 if (process_expression($name, $express)) {
960 if ($op eq "||") {
961 return 1;
962 }
963 } else {
964 if ($op eq "&&") {
965 return 0;
966 }
967 }
968 }
969
970 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
971 my $ret = process_compare($1, $2, $3);
972 if ($ret < 0) {
973 die "$name: $.: Unable to process comparison\n";
974 }
975 return $ret;
976 }
977
978 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
979 if (defined $1) {
980 return !value_defined($2);
981 } else {
982 return value_defined($2);
983 }
984 }
985
986 if ($val =~ s/^\s*NOT\s+(.*)//) {
987 my $express = $1;
988 my $ret = process_expression($name, $express);
989 return !$ret;
990 }
991
992 if ($val =~ /^\s*0\s*$/) {
993 return 0;
994 } elsif ($val =~ /^\s*\d+\s*$/) {
995 return 1;
996 }
997
998 die ("$name: $.: Undefined content $val in if statement\n");
999}
1000
1001sub process_if {
1002 my ($name, $value) = @_;
1003
1004 # Convert variables and replace undefined ones with 0
1005 my $val = process_variables($value, 1);
1006 my $ret = process_expression $name, $val;
1007
1008 return $ret;
1009}
1010
1011sub __read_config {
1012 my ($config, $current_test_num) = @_;
1013
1014 my $in;
1015 open($in, $config) || die "can't read file $config";
1016
1017 my $name = $config;
1018 $name =~ s,.*/(.*),$1,;
1019
1020 my $test_num = $$current_test_num;
1021 my $default = 1;
1022 my $repeat = 1;
1023 my $num_tests_set = 0;
1024 my $skip = 0;
1025 my $rest;
1026 my $line;
1027 my $test_case = 0;
1028 my $if = 0;
1029 my $if_set = 0;
1030 my $override = 0;
1031
1032 my %overrides;
1033
1034 while (<$in>) {
1035
1036 # ignore blank lines and comments
1037 next if (/^\s*$/ || /\s*\#/);
1038
1039 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1040
1041 my $type = $1;
1042 $rest = $2;
1043 $line = $2;
1044
1045 my $old_test_num;
1046 my $old_repeat;
1047 $override = 0;
1048
1049 if ($type eq "TEST_START") {
1050 if ($num_tests_set) {
1051 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1052 }
1053
1054 $old_test_num = $test_num;
1055 $old_repeat = $repeat;
1056
1057 $test_num += $repeat;
1058 $default = 0;
1059 $repeat = 1;
1060 } else {
1061 $default = 1;
1062 }
1063
1064 # If SKIP is anywhere in the line, the command will be skipped
1065 if ($rest =~ s/\s+SKIP\b//) {
1066 $skip = 1;
1067 } else {
1068 $test_case = 1;
1069 $skip = 0;
1070 }
1071
1072 if ($rest =~ s/\sELSE\b//) {
1073 if (!$if) {
1074 die "$name: $.: ELSE found with out matching IF section\n$_";
1075 }
1076 $if = 0;
1077
1078 if ($if_set) {
1079 $skip = 1;
1080 } else {
1081 $skip = 0;
1082 }
1083 }
1084
1085 if ($rest =~ s/\sIF\s+(.*)//) {
1086 if (process_if($name, $1)) {
1087 $if_set = 1;
1088 } else {
1089 $skip = 1;
1090 }
1091 $if = 1;
1092 } else {
1093 $if = 0;
1094 $if_set = 0;
1095 }
1096
1097 if (!$skip) {
1098 if ($type eq "TEST_START") {
1099 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1100 $repeat = $1;
1101 $repeat_tests{"$test_num"} = $repeat;
1102 }
1103 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1104 # DEFAULT only
1105 $override = 1;
1106 # Clear previous overrides
1107 %overrides = ();
1108 }
1109 }
1110
1111 if (!$skip && $rest !~ /^\s*$/) {
1112 die "$name: $.: Garbage found after $type\n$_";
1113 }
1114
1115 if ($skip && $type eq "TEST_START") {
1116 $test_num = $old_test_num;
1117 $repeat = $old_repeat;
1118 }
1119 } elsif (/^\s*ELSE\b(.*)$/) {
1120 if (!$if) {
1121 die "$name: $.: ELSE found with out matching IF section\n$_";
1122 }
1123 $rest = $1;
1124 if ($if_set) {
1125 $skip = 1;
1126 $rest = "";
1127 } else {
1128 $skip = 0;
1129
1130 if ($rest =~ /\sIF\s+(.*)/) {
1131 # May be a ELSE IF section.
1132 if (process_if($name, $1)) {
1133 $if_set = 1;
1134 } else {
1135 $skip = 1;
1136 }
1137 $rest = "";
1138 } else {
1139 $if = 0;
1140 }
1141 }
1142
1143 if ($rest !~ /^\s*$/) {
1144 die "$name: $.: Garbage found after DEFAULTS\n$_";
1145 }
1146
1147 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1148
1149 next if ($skip);
1150
1151 if (!$default) {
1152 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1153 }
1154
1155 my $file = process_variables($1);
1156
1157 if ($file !~ m,^/,) {
1158 # check the path of the config file first
1159 if ($config =~ m,(.*)/,) {
1160 if (-f "$1/$file") {
1161 $file = "$1/$file";
1162 }
1163 }
1164 }
1165
1166 if ( ! -r $file ) {
1167 die "$name: $.: Can't read file $file\n$_";
1168 }
1169
1170 if (__read_config($file, \$test_num)) {
1171 $test_case = 1;
1172 }
1173
1174 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1175
1176 next if ($skip);
1177
1178 my $lvalue = $1;
1179 my $rvalue = $2;
1180
1181 if ($default || $lvalue =~ /\[\d+\]$/) {
1182 set_eval($lvalue, $rvalue, $name);
1183 } else {
1184 my $val = "$lvalue\[$test_num\]";
1185 set_eval($val, $rvalue, $name);
1186 }
1187
1188 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1189
1190 next if ($skip);
1191
1192 my $lvalue = $1;
1193 my $rvalue = $2;
1194
1195 if (!$default &&
1196 ($lvalue eq "NUM_TESTS" ||
1197 $lvalue eq "LOG_FILE" ||
1198 $lvalue eq "CLEAR_LOG")) {
1199 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1200 }
1201
1202 if ($lvalue eq "NUM_TESTS") {
1203 if ($test_num) {
1204 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1205 }
1206 if (!$default) {
1207 die "$name: $.: NUM_TESTS must be set in default section\n";
1208 }
1209 $num_tests_set = 1;
1210 }
1211
1212 if ($default || $lvalue =~ /\[\d+\]$/) {
1213 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1214 } else {
1215 my $val = "$lvalue\[$test_num\]";
1216 set_value($val, $rvalue, $override, \%overrides, $name);
1217
1218 if ($repeat > 1) {
1219 $repeats{$val} = $repeat;
1220 }
1221 }
1222 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1223 next if ($skip);
1224
1225 my $lvalue = $1;
1226 my $rvalue = $2;
1227
1228 # process config variables.
1229 # Config variables are only active while reading the
1230 # config and can be defined anywhere. They also ignore
1231 # TEST_START and DEFAULTS, but are skipped if they are in
1232 # on of these sections that have SKIP defined.
1233 # The save variable can be
1234 # defined multiple times and the new one simply overrides
1235 # the previous one.
1236 set_variable($lvalue, $rvalue);
1237
1238 } else {
1239 die "$name: $.: Garbage found in config\n$_";
1240 }
1241 }
1242
1243 if ($test_num) {
1244 $test_num += $repeat - 1;
1245 $opt{"NUM_TESTS"} = $test_num;
1246 }
1247
1248 close($in);
1249
1250 $$current_test_num = $test_num;
1251
1252 return $test_case;
1253}
1254
1255sub get_test_case {
1256 print "What test case would you like to run?\n";
1257 print " (build, install or boot)\n";
1258 print " Other tests are available but require editing ktest.conf\n";
1259 print " (see tools/testing/ktest/sample.conf)\n";
1260 my $ans = <STDIN>;
1261 chomp $ans;
1262 $default{"TEST_TYPE"} = $ans;
1263}
1264
1265sub read_config {
1266 my ($config) = @_;
1267
1268 my $test_case;
1269 my $test_num = 0;
1270
1271 $test_case = __read_config $config, \$test_num;
1272
1273 # make sure we have all mandatory configs
1274 get_mandatory_configs;
1275
1276 # was a test specified?
1277 if (!$test_case) {
1278 print "No test case specified.\n";
1279 get_test_case;
1280 }
1281
1282 # set any defaults
1283
1284 foreach my $default (keys %default) {
1285 if (!defined($opt{$default})) {
1286 $opt{$default} = $default{$default};
1287 }
1288 }
1289
1290 if ($opt{"IGNORE_UNUSED"} == 1) {
1291 return;
1292 }
1293
1294 my %not_used;
1295
1296 # check if there are any stragglers (typos?)
1297 foreach my $option (keys %opt) {
1298 my $op = $option;
1299 # remove per test labels.
1300 $op =~ s/\[.*\]//;
1301 if (!exists($option_map{$op}) &&
1302 !exists($default{$op}) &&
1303 !exists($used_options{$op})) {
1304 $not_used{$op} = 1;
1305 }
1306 }
1307
1308 if (%not_used) {
1309 my $s = "s are";
1310 $s = " is" if (keys %not_used == 1);
1311 print "The following option$s not used; could be a typo:\n";
1312 foreach my $option (keys %not_used) {
1313 print "$option\n";
1314 }
1315 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1316 if (!read_yn "Do you want to continue?") {
1317 exit -1;
1318 }
1319 }
1320}
1321
1322sub __eval_option {
1323 my ($name, $option, $i) = @_;
1324
1325 # Add space to evaluate the character before $
1326 $option = " $option";
1327 my $retval = "";
1328 my $repeated = 0;
1329 my $parent = 0;
1330
1331 foreach my $test (keys %repeat_tests) {
1332 if ($i >= $test &&
1333 $i < $test + $repeat_tests{$test}) {
1334
1335 $repeated = 1;
1336 $parent = $test;
1337 last;
1338 }
1339 }
1340
1341 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1342 my $start = $1;
1343 my $var = $2;
1344 my $end = $3;
1345
1346 # Append beginning of line
1347 $retval = "$retval$start";
1348
1349 # If the iteration option OPT[$i] exists, then use that.
1350 # otherwise see if the default OPT (without [$i]) exists.
1351
1352 my $o = "$var\[$i\]";
1353 my $parento = "$var\[$parent\]";
1354
1355 # If a variable contains itself, use the default var
1356 if (($var eq $name) && defined($opt{$var})) {
1357 $o = $opt{$var};
1358 $retval = "$retval$o";
1359 } elsif (defined($opt{$o})) {
1360 $o = $opt{$o};
1361 $retval = "$retval$o";
1362 } elsif ($repeated && defined($opt{$parento})) {
1363 $o = $opt{$parento};
1364 $retval = "$retval$o";
1365 } elsif (defined($opt{$var})) {
1366 $o = $opt{$var};
1367 $retval = "$retval$o";
1368 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1369 # special option KERNEL_VERSION uses kernel version
1370 get_version();
1371 $retval = "$retval$version";
1372 } else {
1373 $retval = "$retval\$\{$var\}";
1374 }
1375
1376 $option = $end;
1377 }
1378
1379 $retval = "$retval$option";
1380
1381 $retval =~ s/^ //;
1382
1383 return $retval;
1384}
1385
1386sub process_evals {
1387 my ($name, $option, $i) = @_;
1388
1389 my $option_name = "$name\[$i\]";
1390 my $ev;
1391
1392 my $old_option = $option;
1393
1394 if (defined($evals{$option_name})) {
1395 $ev = $evals{$option_name};
1396 } elsif (defined($evals{$name})) {
1397 $ev = $evals{$name};
1398 } else {
1399 return $option;
1400 }
1401
1402 for my $e (@{$ev}) {
1403 eval "\$option =~ $e";
1404 }
1405
1406 if ($option ne $old_option) {
1407 doprint("$name changed from '$old_option' to '$option'\n");
1408 }
1409
1410 return $option;
1411}
1412
1413sub eval_option {
1414 my ($name, $option, $i) = @_;
1415
1416 my $prev = "";
1417
1418 # Since an option can evaluate to another option,
1419 # keep iterating until we do not evaluate any more
1420 # options.
1421 my $r = 0;
1422 while ($prev ne $option) {
1423 # Check for recursive evaluations.
1424 # 100 deep should be more than enough.
1425 if ($r++ > 100) {
1426 die "Over 100 evaluations occurred with $option\n" .
1427 "Check for recursive variables\n";
1428 }
1429 $prev = $option;
1430 $option = __eval_option($name, $option, $i);
1431 }
1432
1433 $option = process_evals($name, $option, $i);
1434
1435 return $option;
1436}
1437
1438sub reboot {
1439 my ($time) = @_;
1440 my $powercycle = 0;
1441
1442 # test if the machine can be connected to within a few seconds
1443 my $stat = run_ssh("echo check machine status", $connect_timeout);
1444 if (!$stat) {
1445 doprint("power cycle\n");
1446 $powercycle = 1;
1447 }
1448
1449 if ($powercycle) {
1450 run_command "$power_cycle";
1451
1452 start_monitor;
1453 # flush out current monitor
1454 # May contain the reboot success line
1455 wait_for_monitor 1;
1456
1457 } else {
1458 # Make sure everything has been written to disk
1459 run_ssh("sync", 10);
1460
1461 if (defined($time)) {
1462 start_monitor;
1463 # flush out current monitor
1464 # May contain the reboot success line
1465 wait_for_monitor 1;
1466 }
1467
1468 # try to reboot normally
1469 if (run_command $reboot) {
1470 if (defined($powercycle_after_reboot)) {
1471 sleep $powercycle_after_reboot;
1472 run_command "$power_cycle";
1473 }
1474 } else {
1475 # nope? power cycle it.
1476 run_command "$power_cycle";
1477 }
1478 }
1479
1480 if (defined($time)) {
1481
1482 # We only want to get to the new kernel, don't fail
1483 # if we stumble over a call trace.
1484 my $save_ignore_errors = $ignore_errors;
1485 $ignore_errors = 1;
1486
1487 # Look for the good kernel to boot
1488 if (wait_for_monitor($time, "Linux version")) {
1489 # reboot got stuck?
1490 doprint "Reboot did not finish. Forcing power cycle\n";
1491 run_command "$power_cycle";
1492 }
1493
1494 $ignore_errors = $save_ignore_errors;
1495
1496 # Still need to wait for the reboot to finish
1497 wait_for_monitor($time, $reboot_success_line);
1498
1499 end_monitor;
1500 }
1501}
1502
1503sub reboot_to_good {
1504 my ($time) = @_;
1505
1506 if (defined($switch_to_good)) {
1507 run_command $switch_to_good;
1508 }
1509
1510 reboot $time;
1511}
1512
1513sub do_not_reboot {
1514 my $i = $iteration;
1515
1516 return $test_type eq "build" || $no_reboot ||
1517 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1518 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1519 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1520}
1521
1522sub get_test_name() {
1523 my $name;
1524
1525 if (defined($test_name)) {
1526 $name = "$test_name:$test_type";
1527 } else {
1528 $name = $test_type;
1529 }
1530 return $name;
1531}
1532
1533sub dodie {
1534 # avoid recursion
1535 return if ($in_die);
1536 $in_die = 1;
1537
1538 my $i = $iteration;
1539
1540 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1541
1542 if ($reboot_on_error && !do_not_reboot) {
1543 doprint "REBOOTING\n";
1544 reboot_to_good;
1545 } elsif ($poweroff_on_error && defined($power_off)) {
1546 doprint "POWERING OFF\n";
1547 `$power_off`;
1548 }
1549
1550 if (defined($opt{"LOG_FILE"})) {
1551 print " See $opt{LOG_FILE} for more info.\n";
1552 }
1553
1554 if ($email_on_error) {
1555 my $name = get_test_name;
1556 my $log_file;
1557
1558 if (defined($opt{"LOG_FILE"})) {
1559 my $whence = 2; # End of file
1560 my $log_size = tell LOG;
1561 my $size = $log_size - $test_log_start;
1562
1563 if (defined($mail_max_size)) {
1564 if ($size > $mail_max_size) {
1565 $size = $mail_max_size;
1566 }
1567 }
1568 my $pos = - $size;
1569 $log_file = "$tmpdir/log";
1570 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1571 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1572 seek(L, $pos, $whence);
1573 while (<L>) {
1574 print O;
1575 }
1576 close O;
1577 close L;
1578 }
1579
1580 send_email("KTEST: critical failure for test $i [$name]",
1581 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1582 }
1583
1584 if ($monitor_cnt) {
1585 # restore terminal settings
1586 system("stty $stty_orig");
1587 }
1588
1589 if (defined($post_test)) {
1590 run_command $post_test;
1591 }
1592
1593 die @_, "\n";
1594}
1595
1596sub create_pty {
1597 my ($ptm, $pts) = @_;
1598 my $tmp;
1599 my $TIOCSPTLCK = 0x40045431;
1600 my $TIOCGPTN = 0x80045430;
1601
1602 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1603 dodie "Can't open /dev/ptmx";
1604
1605 # unlockpt()
1606 $tmp = pack("i", 0);
1607 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1608 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1609
1610 # ptsname()
1611 ioctl($ptm, $TIOCGPTN, $tmp) or
1612 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1613 $tmp = unpack("i", $tmp);
1614
1615 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1616 dodie "Can't open /dev/pts/$tmp";
1617}
1618
1619sub exec_console {
1620 my ($ptm, $pts) = @_;
1621
1622 close($ptm);
1623
1624 close(\*STDIN);
1625 close(\*STDOUT);
1626 close(\*STDERR);
1627
1628 open(\*STDIN, '<&', $pts);
1629 open(\*STDOUT, '>&', $pts);
1630 open(\*STDERR, '>&', $pts);
1631
1632 close($pts);
1633
1634 exec $console or
1635 dodie "Can't open console $console";
1636}
1637
1638sub open_console {
1639 my ($ptm) = @_;
1640 my $pts = \*PTSFD;
1641 my $pid;
1642
1643 # save terminal settings
1644 $stty_orig = `stty -g`;
1645
1646 # place terminal in cbreak mode so that stdin can be read one character at
1647 # a time without having to wait for a newline
1648 system("stty -icanon -echo -icrnl");
1649
1650 create_pty($ptm, $pts);
1651
1652 $pid = fork;
1653
1654 if (!$pid) {
1655 # child
1656 exec_console($ptm, $pts)
1657 }
1658
1659 # parent
1660 close($pts);
1661
1662 return $pid;
1663
1664 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1665}
1666
1667sub close_console {
1668 my ($fp, $pid) = @_;
1669
1670 doprint "kill child process $pid\n";
1671 kill $close_console_signal, $pid;
1672
1673 doprint "wait for child process $pid to exit\n";
1674 waitpid($pid, 0);
1675
1676 print "closing!\n";
1677 close($fp);
1678
1679 # restore terminal settings
1680 system("stty $stty_orig");
1681}
1682
1683sub start_monitor {
1684 if ($monitor_cnt++) {
1685 return;
1686 }
1687 $monitor_fp = \*MONFD;
1688 $monitor_pid = open_console $monitor_fp;
1689
1690 return;
1691
1692 open(MONFD, "Stop perl from warning about single use of MONFD");
1693}
1694
1695sub end_monitor {
1696 return if (!defined $console);
1697 if (--$monitor_cnt) {
1698 return;
1699 }
1700 close_console($monitor_fp, $monitor_pid);
1701}
1702
1703sub wait_for_monitor {
1704 my ($time, $stop) = @_;
1705 my $full_line = "";
1706 my $line;
1707 my $booted = 0;
1708 my $start_time = time;
1709 my $skip_call_trace = 0;
1710 my $bug = 0;
1711 my $bug_ignored = 0;
1712 my $now;
1713
1714 doprint "** Wait for monitor to settle down **\n";
1715
1716 # read the monitor and wait for the system to calm down
1717 while (!$booted) {
1718 $line = wait_for_input($monitor_fp, $time);
1719 last if (!defined($line));
1720 print "$line";
1721 $full_line .= $line;
1722
1723 if (defined($stop) && $full_line =~ /$stop/) {
1724 doprint "wait for monitor detected $stop\n";
1725 $booted = 1;
1726 }
1727
1728 if ($full_line =~ /\[ backtrace testing \]/) {
1729 $skip_call_trace = 1;
1730 }
1731
1732 if ($full_line =~ /call trace:/i) {
1733 if (!$bug && !$skip_call_trace) {
1734 if ($ignore_errors) {
1735 $bug_ignored = 1;
1736 } else {
1737 $bug = 1;
1738 }
1739 }
1740 }
1741
1742 if ($full_line =~ /\[ end of backtrace testing \]/) {
1743 $skip_call_trace = 0;
1744 }
1745
1746 if ($full_line =~ /Kernel panic -/) {
1747 $bug = 1;
1748 }
1749
1750 if ($line =~ /\n/) {
1751 $full_line = "";
1752 }
1753 $now = time;
1754 if ($now - $start_time >= $max_monitor_wait) {
1755 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1756 return 1;
1757 }
1758 }
1759 print "** Monitor flushed **\n";
1760
1761 # if stop is defined but wasn't hit, return error
1762 # used by reboot (which wants to see a reboot)
1763 if (defined($stop) && !$booted) {
1764 $bug = 1;
1765 }
1766 return $bug;
1767}
1768
1769sub save_logs {
1770 my ($result, $basedir) = @_;
1771 my @t = localtime;
1772 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1773 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1774
1775 my $type = $build_type;
1776 if ($type =~ /useconfig/) {
1777 $type = "useconfig";
1778 }
1779
1780 my $dir = "$machine-$test_type-$type-$result-$date";
1781
1782 $dir = "$basedir/$dir";
1783
1784 if (!-d $dir) {
1785 mkpath($dir) or
1786 dodie "can't create $dir";
1787 }
1788
1789 my %files = (
1790 "config" => $output_config,
1791 "buildlog" => $buildlog,
1792 "dmesg" => $dmesg,
1793 "testlog" => $testlog,
1794 );
1795
1796 while (my ($name, $source) = each(%files)) {
1797 if (-f "$source") {
1798 cp "$source", "$dir/$name" or
1799 dodie "failed to copy $source";
1800 }
1801 }
1802
1803 doprint "*** Saved info to $dir ***\n";
1804}
1805
1806sub fail {
1807
1808 if ($die_on_failure) {
1809 dodie @_;
1810 }
1811
1812 doprint "FAILED\n";
1813
1814 my $i = $iteration;
1815
1816 # no need to reboot for just building.
1817 if (!do_not_reboot) {
1818 doprint "REBOOTING\n";
1819 reboot_to_good $sleep_time;
1820 }
1821
1822 my $name = "";
1823
1824 if (defined($test_name)) {
1825 $name = " ($test_name)";
1826 }
1827
1828 print_times;
1829
1830 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1831 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1832 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1833 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1834 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1835
1836 if (defined($store_failures)) {
1837 save_logs "fail", $store_failures;
1838 }
1839
1840 if (defined($post_test)) {
1841 run_command $post_test;
1842 }
1843
1844 return 1;
1845}
1846
1847sub run_command {
1848 my ($command, $redirect, $timeout) = @_;
1849 my $start_time;
1850 my $end_time;
1851 my $dolog = 0;
1852 my $dord = 0;
1853 my $dostdout = 0;
1854 my $pid;
1855 my $command_orig = $command;
1856
1857 $command =~ s/\$SSH_USER/$ssh_user/g;
1858 $command =~ s/\$MACHINE/$machine/g;
1859
1860 doprint("$command ... ");
1861 $start_time = time;
1862
1863 $pid = open(CMD, "$command 2>&1 |") or
1864 (fail "unable to exec $command" and return 0);
1865
1866 if (defined($opt{"LOG_FILE"})) {
1867 $dolog = 1;
1868 }
1869
1870 if (defined($redirect)) {
1871 if ($redirect eq 1) {
1872 $dostdout = 1;
1873 # Have the output of the command on its own line
1874 doprint "\n";
1875 } else {
1876 open (RD, ">$redirect") or
1877 dodie "failed to write to redirect $redirect";
1878 $dord = 1;
1879 }
1880 }
1881
1882 my $hit_timeout = 0;
1883
1884 while (1) {
1885 my $fp = \*CMD;
1886 if (defined($timeout)) {
1887 doprint "timeout = $timeout\n";
1888 }
1889 my $line = wait_for_input($fp, $timeout);
1890 if (!defined($line)) {
1891 my $now = time;
1892 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1893 doprint "Hit timeout of $timeout, killing process\n";
1894 $hit_timeout = 1;
1895 kill 9, $pid;
1896 }
1897 last;
1898 }
1899 print LOG $line if ($dolog);
1900 print RD $line if ($dord);
1901 print $line if ($dostdout);
1902 }
1903
1904 waitpid($pid, 0);
1905 # shift 8 for real exit status
1906 $run_command_status = $? >> 8;
1907
1908 if ($command_orig eq $default{REBOOT} &&
1909 $run_command_status == $reboot_return_code) {
1910 $run_command_status = 0;
1911 }
1912
1913 close(CMD);
1914 close(RD) if ($dord);
1915
1916 $end_time = time;
1917 my $delta = $end_time - $start_time;
1918
1919 if ($delta == 1) {
1920 doprint "[1 second] ";
1921 } else {
1922 doprint "[$delta seconds] ";
1923 }
1924
1925 if ($hit_timeout) {
1926 $run_command_status = 1;
1927 }
1928
1929 if ($run_command_status) {
1930 doprint "FAILED!\n";
1931 } else {
1932 doprint "SUCCESS\n";
1933 }
1934
1935 return !$run_command_status;
1936}
1937
1938sub run_ssh {
1939 my ($cmd, $timeout) = @_;
1940 my $cp_exec = $ssh_exec;
1941
1942 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1943 return run_command "$cp_exec", undef , $timeout;
1944}
1945
1946sub run_scp {
1947 my ($src, $dst, $cp_scp) = @_;
1948
1949 $cp_scp =~ s/\$SRC_FILE/$src/g;
1950 $cp_scp =~ s/\$DST_FILE/$dst/g;
1951
1952 return run_command "$cp_scp";
1953}
1954
1955sub run_scp_install {
1956 my ($src, $dst) = @_;
1957
1958 my $cp_scp = $scp_to_target_install;
1959
1960 return run_scp($src, $dst, $cp_scp);
1961}
1962
1963sub run_scp_mod {
1964 my ($src, $dst) = @_;
1965
1966 my $cp_scp = $scp_to_target;
1967
1968 return run_scp($src, $dst, $cp_scp);
1969}
1970
1971sub _get_grub_index {
1972
1973 my ($command, $target, $skip, $submenu) = @_;
1974
1975 return if (defined($grub_number) && defined($last_grub_menu) &&
1976 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1977 $last_machine eq $machine);
1978
1979 doprint "Find $reboot_type menu ... ";
1980 $grub_number = -1;
1981
1982 my $ssh_grub = $ssh_exec;
1983 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1984
1985 open(IN, "$ssh_grub |") or
1986 dodie "unable to execute $command";
1987
1988 my $found = 0;
1989
1990 my $submenu_number = 0;
1991
1992 while (<IN>) {
1993 if (/$target/) {
1994 $grub_number++;
1995 $found = 1;
1996 last;
1997 } elsif (defined($submenu) && /$submenu/) {
1998 $submenu_number++;
1999 $grub_number = -1;
2000 } elsif (/$skip/) {
2001 $grub_number++;
2002 }
2003 }
2004 close(IN);
2005
2006 dodie "Could not find '$grub_menu' through $command on $machine"
2007 if (!$found);
2008 if ($submenu_number > 0) {
2009 $grub_number = "$submenu_number>$grub_number";
2010 }
2011 doprint "$grub_number\n";
2012 $last_grub_menu = $grub_menu;
2013 $last_machine = $machine;
2014}
2015
2016sub get_grub_index {
2017
2018 my $command;
2019 my $target;
2020 my $skip;
2021 my $submenu;
2022 my $grub_menu_qt;
2023
2024 if ($reboot_type !~ /^grub/) {
2025 return;
2026 }
2027
2028 $grub_menu_qt = quotemeta($grub_menu);
2029
2030 if ($reboot_type eq "grub") {
2031 $command = "cat /boot/grub/menu.lst";
2032 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2033 $skip = '^\s*title\s';
2034 } elsif ($reboot_type eq "grub2") {
2035 $command = "cat $grub_file";
2036 $target = '^\s*menuentry.*' . $grub_menu_qt;
2037 $skip = '^\s*menuentry';
2038 $submenu = '^\s*submenu\s';
2039 } elsif ($reboot_type eq "grub2bls") {
2040 $command = $grub_bls_get;
2041 $target = '^title=.*' . $grub_menu_qt;
2042 $skip = '^title=';
2043 } else {
2044 return;
2045 }
2046
2047 _get_grub_index($command, $target, $skip, $submenu);
2048}
2049
2050sub wait_for_input {
2051 my ($fp, $time) = @_;
2052 my $start_time;
2053 my $rin;
2054 my $rout;
2055 my $nr;
2056 my $buf;
2057 my $line;
2058 my $ch;
2059
2060 if (!defined($time)) {
2061 $time = $timeout;
2062 }
2063
2064 $rin = '';
2065 vec($rin, fileno($fp), 1) = 1;
2066 vec($rin, fileno(\*STDIN), 1) = 1;
2067
2068 $start_time = time;
2069
2070 while (1) {
2071 $nr = select($rout=$rin, undef, undef, $time);
2072
2073 last if ($nr <= 0);
2074
2075 # copy data from stdin to the console
2076 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2077 $nr = sysread(\*STDIN, $buf, 1000);
2078 syswrite($fp, $buf, $nr) if ($nr > 0);
2079 }
2080
2081 # The timeout is based on time waiting for the fp data
2082 if (vec($rout, fileno($fp), 1) != 1) {
2083 last if (defined($time) && (time - $start_time > $time));
2084 next;
2085 }
2086
2087 $line = "";
2088
2089 # try to read one char at a time
2090 while (sysread $fp, $ch, 1) {
2091 $line .= $ch;
2092 last if ($ch eq "\n");
2093 }
2094
2095 last if (!length($line));
2096
2097 return $line;
2098 }
2099 return undef;
2100}
2101
2102sub reboot_to {
2103 if (defined($switch_to_test)) {
2104 run_command $switch_to_test;
2105 }
2106
2107 if ($reboot_type eq "grub") {
2108 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2109 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2110 run_ssh "$grub_reboot \"'$grub_number'\"";
2111 } elsif ($reboot_type eq "syslinux") {
2112 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2113 } elsif (defined $reboot_script) {
2114 run_command "$reboot_script";
2115 }
2116 reboot;
2117}
2118
2119sub get_sha1 {
2120 my ($commit) = @_;
2121
2122 doprint "git rev-list --max-count=1 $commit ... ";
2123 my $sha1 = `git rev-list --max-count=1 $commit`;
2124 my $ret = $?;
2125
2126 logit $sha1;
2127
2128 if ($ret) {
2129 doprint "FAILED\n";
2130 dodie "Failed to get git $commit";
2131 }
2132
2133 print "SUCCESS\n";
2134
2135 chomp $sha1;
2136
2137 return $sha1;
2138}
2139
2140sub monitor {
2141 my $booted = 0;
2142 my $bug = 0;
2143 my $bug_ignored = 0;
2144 my $skip_call_trace = 0;
2145 my $loops;
2146
2147 my $start_time = time;
2148
2149 wait_for_monitor 5;
2150
2151 my $line;
2152 my $full_line = "";
2153
2154 open(DMESG, "> $dmesg") or
2155 dodie "unable to write to $dmesg";
2156
2157 reboot_to;
2158
2159 my $success_start;
2160 my $failure_start;
2161 my $monitor_start = time;
2162 my $done = 0;
2163 my $version_found = 0;
2164
2165 while (!$done) {
2166 if ($bug && defined($stop_after_failure) &&
2167 $stop_after_failure >= 0) {
2168 my $time = $stop_after_failure - (time - $failure_start);
2169 $line = wait_for_input($monitor_fp, $time);
2170 if (!defined($line)) {
2171 doprint "bug timed out after $booted_timeout seconds\n";
2172 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2173 last;
2174 }
2175 } elsif ($booted) {
2176 $line = wait_for_input($monitor_fp, $booted_timeout);
2177 if (!defined($line)) {
2178 my $s = $booted_timeout == 1 ? "" : "s";
2179 doprint "Successful boot found: break after $booted_timeout second$s\n";
2180 last;
2181 }
2182 } else {
2183 $line = wait_for_input($monitor_fp);
2184 if (!defined($line)) {
2185 my $s = $timeout == 1 ? "" : "s";
2186 doprint "Timed out after $timeout second$s\n";
2187 last;
2188 }
2189 }
2190
2191 doprint $line;
2192 print DMESG $line;
2193
2194 # we are not guaranteed to get a full line
2195 $full_line .= $line;
2196
2197 if ($full_line =~ /$success_line/) {
2198 $booted = 1;
2199 $success_start = time;
2200 }
2201
2202 if ($booted && defined($stop_after_success) &&
2203 $stop_after_success >= 0) {
2204 my $now = time;
2205 if ($now - $success_start >= $stop_after_success) {
2206 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2207 last;
2208 }
2209 }
2210
2211 if ($full_line =~ /\[ backtrace testing \]/) {
2212 $skip_call_trace = 1;
2213 }
2214
2215 if ($full_line =~ /call trace:/i) {
2216 if (!$bug && !$skip_call_trace) {
2217 if ($ignore_errors) {
2218 $bug_ignored = 1;
2219 } else {
2220 $bug = 1;
2221 $failure_start = time;
2222 }
2223 }
2224 }
2225
2226 if ($bug && defined($stop_after_failure) &&
2227 $stop_after_failure >= 0) {
2228 my $now = time;
2229 if ($now - $failure_start >= $stop_after_failure) {
2230 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2231 last;
2232 }
2233 }
2234
2235 if ($full_line =~ /\[ end of backtrace testing \]/) {
2236 $skip_call_trace = 0;
2237 }
2238
2239 if ($full_line =~ /Kernel panic -/) {
2240 $failure_start = time;
2241 $bug = 1;
2242 }
2243
2244 # Detect triple faults by testing the banner
2245 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2246 if ($1 eq $version) {
2247 $version_found = 1;
2248 } elsif ($version_found && $detect_triplefault) {
2249 # We already booted into the kernel we are testing,
2250 # but now we booted into another kernel?
2251 # Consider this a triple fault.
2252 doprint "Already booted in Linux kernel $version, but now\n";
2253 doprint "we booted into Linux kernel $1.\n";
2254 doprint "Assuming that this is a triple fault.\n";
2255 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2256 last;
2257 }
2258 }
2259
2260 if ($line =~ /\n/) {
2261 $full_line = "";
2262 }
2263
2264 if ($stop_test_after > 0 && !$booted && !$bug) {
2265 if (time - $monitor_start > $stop_test_after) {
2266 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2267 $done = 1;
2268 }
2269 }
2270 }
2271
2272 my $end_time = time;
2273 $reboot_time = $end_time - $start_time;
2274
2275 close(DMESG);
2276
2277 if ($bug) {
2278 return 0 if ($in_bisect);
2279 fail "failed - got a bug report" and return 0;
2280 }
2281
2282 if (!$booted) {
2283 return 0 if ($in_bisect);
2284 fail "failed - never got a boot prompt." and return 0;
2285 }
2286
2287 if ($bug_ignored) {
2288 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2289 }
2290
2291 return 1;
2292}
2293
2294sub eval_kernel_version {
2295 my ($option) = @_;
2296
2297 $option =~ s/\$KERNEL_VERSION/$version/g;
2298
2299 return $option;
2300}
2301
2302sub do_post_install {
2303
2304 return if (!defined($post_install));
2305
2306 my $cp_post_install = eval_kernel_version $post_install;
2307 run_command "$cp_post_install" or
2308 dodie "Failed to run post install";
2309}
2310
2311# Sometimes the reboot fails, and will hang. We try to ssh to the box
2312# and if we fail, we force another reboot, that should powercycle it.
2313sub test_booted {
2314 if (!run_ssh "echo testing connection") {
2315 reboot $sleep_time;
2316 }
2317}
2318
2319sub install {
2320
2321 return if ($no_install);
2322
2323 my $start_time = time;
2324
2325 if (defined($pre_install)) {
2326 my $cp_pre_install = eval_kernel_version $pre_install;
2327 run_command "$cp_pre_install" or
2328 dodie "Failed to run pre install";
2329 }
2330
2331 my $cp_target = eval_kernel_version $target_image;
2332
2333 test_booted;
2334
2335 run_scp_install "$outputdir/$build_target", "$cp_target" or
2336 dodie "failed to copy image";
2337
2338 my $install_mods = 0;
2339
2340 # should we process modules?
2341 $install_mods = 0;
2342 open(IN, "$output_config") or dodie("Can't read config file");
2343 while (<IN>) {
2344 if (/CONFIG_MODULES(=y)?/) {
2345 if (defined($1)) {
2346 $install_mods = 1;
2347 last;
2348 }
2349 }
2350 }
2351 close(IN);
2352
2353 if (!$install_mods) {
2354 do_post_install;
2355 doprint "No modules needed\n";
2356 my $end_time = time;
2357 $install_time = $end_time - $start_time;
2358 return;
2359 }
2360
2361 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2362 dodie "Failed to install modules";
2363
2364 my $modlib = "/lib/modules/$version";
2365 my $modtar = "ktest-mods.tar.bz2";
2366
2367 run_ssh "rm -rf $modlib" or
2368 dodie "failed to remove old mods: $modlib";
2369
2370 # would be nice if scp -r did not follow symbolic links
2371 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2372 dodie "making tarball";
2373
2374 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2375 dodie "failed to copy modules";
2376
2377 unlink "$tmpdir/$modtar";
2378
2379 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2380 dodie "failed to tar modules";
2381
2382 run_ssh "rm -f /tmp/$modtar";
2383
2384 do_post_install;
2385
2386 my $end_time = time;
2387 $install_time = $end_time - $start_time;
2388}
2389
2390sub get_version {
2391 # get the release name
2392 return if ($have_version);
2393 doprint "$make kernelrelease ... ";
2394 $version = `$make -s kernelrelease | tail -1`;
2395 chomp($version);
2396 doprint "$version\n";
2397 $have_version = 1;
2398}
2399
2400sub start_monitor_and_install {
2401 # Make sure the stable kernel has finished booting
2402
2403 # Install bisects, don't need console
2404 if (defined $console) {
2405 start_monitor;
2406 wait_for_monitor 5;
2407 end_monitor;
2408 }
2409
2410 get_grub_index;
2411 get_version;
2412 install;
2413
2414 start_monitor if (defined $console);
2415 return monitor;
2416}
2417
2418sub process_warning_line {
2419 my ($line) = @_;
2420
2421 chomp $line;
2422
2423 # for distcc heterogeneous systems, some compilers
2424 # do things differently causing warning lines
2425 # to be slightly different. This makes an attempt
2426 # to fixe those issues.
2427
2428 # chop off the index into the line
2429 # using distcc, some compilers give different indexes
2430 # depending on white space
2431 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2432
2433 # Some compilers use UTF-8 extended for quotes and some don't.
2434 $line =~ s/$utf8_quote/'/g;
2435
2436 return $line;
2437}
2438
2439# Read buildlog and check against warnings file for any
2440# new warnings.
2441#
2442# Returns 1 if OK
2443# 0 otherwise
2444sub check_buildlog {
2445 return 1 if (!defined $warnings_file);
2446
2447 my %warnings_list;
2448
2449 # Failed builds should not reboot the target
2450 my $save_no_reboot = $no_reboot;
2451 $no_reboot = 1;
2452
2453 if (-f $warnings_file) {
2454 open(IN, $warnings_file) or
2455 dodie "Error opening $warnings_file";
2456
2457 while (<IN>) {
2458 if (/$check_build_re/) {
2459 my $warning = process_warning_line $_;
2460
2461 $warnings_list{$warning} = 1;
2462 }
2463 }
2464 close(IN);
2465 }
2466
2467 # If warnings file didn't exist, and WARNINGS_FILE exist,
2468 # then we fail on any warning!
2469
2470 open(IN, $buildlog) or dodie "Can't open $buildlog";
2471 while (<IN>) {
2472 if (/$check_build_re/) {
2473 my $warning = process_warning_line $_;
2474
2475 if (!defined $warnings_list{$warning}) {
2476 fail "New warning found (not in $warnings_file)\n$_\n";
2477 $no_reboot = $save_no_reboot;
2478 return 0;
2479 }
2480 }
2481 }
2482 $no_reboot = $save_no_reboot;
2483 close(IN);
2484}
2485
2486sub check_patch_buildlog {
2487 my ($patch) = @_;
2488
2489 my @files = `git show $patch | diffstat -l`;
2490
2491 foreach my $file (@files) {
2492 chomp $file;
2493 }
2494
2495 open(IN, "git show $patch |") or
2496 dodie "failed to show $patch";
2497 while (<IN>) {
2498 if (m,^--- a/(.*),) {
2499 chomp $1;
2500 $files[$#files] = $1;
2501 }
2502 }
2503 close(IN);
2504
2505 open(IN, $buildlog) or dodie "Can't open $buildlog";
2506 while (<IN>) {
2507 if (/^\s*(.*?):.*(warning|error)/) {
2508 my $err = $1;
2509 foreach my $file (@files) {
2510 my $fullpath = "$builddir/$file";
2511 if ($file eq $err || $fullpath eq $err) {
2512 fail "$file built with warnings" and return 0;
2513 }
2514 }
2515 }
2516 }
2517 close(IN);
2518
2519 return 1;
2520}
2521
2522sub apply_min_config {
2523 my $outconfig = "$output_config.new";
2524
2525 # Read the config file and remove anything that
2526 # is in the force_config hash (from minconfig and others)
2527 # then add the force config back.
2528
2529 doprint "Applying minimum configurations into $output_config.new\n";
2530
2531 open (OUT, ">$outconfig") or
2532 dodie "Can't create $outconfig";
2533
2534 if (-f $output_config) {
2535 open (IN, $output_config) or
2536 dodie "Failed to open $output_config";
2537 while (<IN>) {
2538 if (/^(# )?(CONFIG_[^\s=]*)/) {
2539 next if (defined($force_config{$2}));
2540 }
2541 print OUT;
2542 }
2543 close IN;
2544 }
2545 foreach my $config (keys %force_config) {
2546 print OUT "$force_config{$config}\n";
2547 }
2548 close OUT;
2549
2550 run_command "mv $outconfig $output_config";
2551}
2552
2553sub make_oldconfig {
2554
2555 my @force_list = keys %force_config;
2556
2557 if ($#force_list >= 0) {
2558 apply_min_config;
2559 }
2560
2561 if (!run_command "$make olddefconfig") {
2562 # Perhaps olddefconfig doesn't exist in this version of the kernel
2563 # try oldnoconfig
2564 doprint "olddefconfig failed, trying make oldnoconfig\n";
2565 if (!run_command "$make oldnoconfig") {
2566 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2567 # try a yes '' | oldconfig
2568 run_command "yes '' | $make oldconfig" or
2569 dodie "failed make config oldconfig";
2570 }
2571 }
2572}
2573
2574# read a config file and use this to force new configs.
2575sub load_force_config {
2576 my ($config) = @_;
2577
2578 doprint "Loading force configs from $config\n";
2579 open(IN, $config) or
2580 dodie "failed to read $config";
2581 while (<IN>) {
2582 chomp;
2583 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2584 $force_config{$1} = $_;
2585 } elsif (/^# (CONFIG_\S*) is not set/) {
2586 $force_config{$1} = $_;
2587 }
2588 }
2589 close IN;
2590}
2591
2592sub build {
2593 my ($type) = @_;
2594
2595 unlink $buildlog;
2596
2597 my $start_time = time;
2598
2599 # Failed builds should not reboot the target
2600 my $save_no_reboot = $no_reboot;
2601 $no_reboot = 1;
2602
2603 # Calculate a new version from here.
2604 $have_version = 0;
2605
2606 if (defined($pre_build)) {
2607 my $ret = run_command $pre_build;
2608 if (!$ret && defined($pre_build_die) &&
2609 $pre_build_die) {
2610 dodie "failed to pre_build\n";
2611 }
2612 }
2613
2614 if ($type =~ /^useconfig:(.*)/) {
2615 run_command "cp $1 $output_config" or
2616 dodie "could not copy $1 to .config";
2617
2618 $type = "oldconfig";
2619 }
2620
2621 # old config can ask questions
2622 if ($type eq "oldconfig") {
2623 $type = "olddefconfig";
2624
2625 # allow for empty configs
2626 run_command "touch $output_config";
2627
2628 if (!$noclean) {
2629 run_command "mv $output_config $outputdir/config_temp" or
2630 dodie "moving .config";
2631
2632 run_command "$make mrproper" or dodie "make mrproper";
2633
2634 run_command "mv $outputdir/config_temp $output_config" or
2635 dodie "moving config_temp";
2636 }
2637 } elsif (!$noclean) {
2638 unlink "$output_config";
2639 run_command "$make mrproper" or
2640 dodie "make mrproper";
2641 }
2642
2643 # add something to distinguish this build
2644 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2645 print OUT "$localversion\n";
2646 close(OUT);
2647
2648 if (defined($minconfig)) {
2649 load_force_config($minconfig);
2650 }
2651
2652 if ($type ne "olddefconfig") {
2653 run_command "$make $type" or
2654 dodie "failed make config";
2655 }
2656 # Run old config regardless, to enforce min configurations
2657 make_oldconfig;
2658
2659 if (not defined($build_options)){
2660 $build_options = "";
2661 }
2662 my $build_ret = run_command "$make $build_options", $buildlog;
2663
2664 if (defined($post_build)) {
2665 # Because a post build may change the kernel version
2666 # do it now.
2667 get_version;
2668 my $ret = run_command $post_build;
2669 if (!$ret && defined($post_build_die) &&
2670 $post_build_die) {
2671 dodie "failed to post_build\n";
2672 }
2673 }
2674
2675 if (!$build_ret) {
2676 # bisect may need this to pass
2677 if ($in_bisect) {
2678 $no_reboot = $save_no_reboot;
2679 return 0;
2680 }
2681 fail "failed build" and return 0;
2682 }
2683
2684 $no_reboot = $save_no_reboot;
2685
2686 my $end_time = time;
2687 $build_time = $end_time - $start_time;
2688
2689 return 1;
2690}
2691
2692sub halt {
2693 if (!run_ssh "halt" or defined($power_off)) {
2694 if (defined($poweroff_after_halt)) {
2695 sleep $poweroff_after_halt;
2696 run_command "$power_off";
2697 }
2698 } else {
2699 # nope? the zap it!
2700 run_command "$power_off";
2701 }
2702}
2703
2704sub success {
2705 my ($i) = @_;
2706
2707 $successes++;
2708
2709 my $name = "";
2710
2711 if (defined($test_name)) {
2712 $name = " ($test_name)";
2713 }
2714
2715 print_times;
2716
2717 doprint "\n\n";
2718 doprint "*******************************************\n";
2719 doprint "*******************************************\n";
2720 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2721 doprint "*******************************************\n";
2722 doprint "*******************************************\n";
2723
2724 if (defined($store_successes)) {
2725 save_logs "success", $store_successes;
2726 }
2727
2728 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2729 doprint "Reboot and wait $sleep_time seconds\n";
2730 reboot_to_good $sleep_time;
2731 }
2732
2733 if (defined($post_test)) {
2734 run_command $post_test;
2735 }
2736}
2737
2738sub answer_bisect {
2739 for (;;) {
2740 doprint "Pass, fail, or skip? [p/f/s]";
2741 my $ans = <STDIN>;
2742 chomp $ans;
2743 if ($ans eq "p" || $ans eq "P") {
2744 return 1;
2745 } elsif ($ans eq "f" || $ans eq "F") {
2746 return 0;
2747 } elsif ($ans eq "s" || $ans eq "S") {
2748 return -1;
2749 } else {
2750 print "Please answer 'p', 'f', or 's'\n";
2751 }
2752 }
2753}
2754
2755sub child_run_test {
2756
2757 # child should have no power
2758 $reboot_on_error = 0;
2759 $poweroff_on_error = 0;
2760 $die_on_failure = 1;
2761
2762 run_command $run_test, $testlog;
2763
2764 exit $run_command_status;
2765}
2766
2767sub child_finished {
2768 $child_done = 1;
2769}
2770
2771sub do_run_test {
2772 my $child_pid;
2773 my $child_exit;
2774 my $line;
2775 my $full_line;
2776 my $bug = 0;
2777 my $bug_ignored = 0;
2778
2779 my $start_time = time;
2780
2781 wait_for_monitor 1;
2782
2783 doprint "run test $run_test\n";
2784
2785 $child_done = 0;
2786
2787 $SIG{CHLD} = qw(child_finished);
2788
2789 $child_pid = fork;
2790
2791 child_run_test if (!$child_pid);
2792
2793 $full_line = "";
2794
2795 do {
2796 $line = wait_for_input($monitor_fp, 1);
2797 if (defined($line)) {
2798
2799 # we are not guaranteed to get a full line
2800 $full_line .= $line;
2801 doprint $line;
2802
2803 if ($full_line =~ /call trace:/i) {
2804 if ($ignore_errors) {
2805 $bug_ignored = 1;
2806 } else {
2807 $bug = 1;
2808 }
2809 }
2810
2811 if ($full_line =~ /Kernel panic -/) {
2812 $bug = 1;
2813 }
2814
2815 if ($line =~ /\n/) {
2816 $full_line = "";
2817 }
2818 }
2819 } while (!$child_done && !$bug);
2820
2821 if (!$bug && $bug_ignored) {
2822 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2823 }
2824
2825 if ($bug) {
2826 my $failure_start = time;
2827 my $now;
2828 do {
2829 $line = wait_for_input($monitor_fp, 1);
2830 if (defined($line)) {
2831 doprint $line;
2832 }
2833 $now = time;
2834 if ($now - $failure_start >= $stop_after_failure) {
2835 last;
2836 }
2837 } while (defined($line));
2838
2839 doprint "Detected kernel crash!\n";
2840 # kill the child with extreme prejudice
2841 kill 9, $child_pid;
2842 }
2843
2844 waitpid $child_pid, 0;
2845 $child_exit = $? >> 8;
2846
2847 my $end_time = time;
2848 $test_time = $end_time - $start_time;
2849
2850 if (!$bug && $in_bisect) {
2851 if (defined($bisect_ret_good)) {
2852 if ($child_exit == $bisect_ret_good) {
2853 return 1;
2854 }
2855 }
2856 if (defined($bisect_ret_skip)) {
2857 if ($child_exit == $bisect_ret_skip) {
2858 return -1;
2859 }
2860 }
2861 if (defined($bisect_ret_abort)) {
2862 if ($child_exit == $bisect_ret_abort) {
2863 fail "test abort" and return -2;
2864 }
2865 }
2866 if (defined($bisect_ret_bad)) {
2867 if ($child_exit == $bisect_ret_skip) {
2868 return 0;
2869 }
2870 }
2871 if (defined($bisect_ret_default)) {
2872 if ($bisect_ret_default eq "good") {
2873 return 1;
2874 } elsif ($bisect_ret_default eq "bad") {
2875 return 0;
2876 } elsif ($bisect_ret_default eq "skip") {
2877 return -1;
2878 } elsif ($bisect_ret_default eq "abort") {
2879 return -2;
2880 } else {
2881 fail "unknown default action: $bisect_ret_default"
2882 and return -2;
2883 }
2884 }
2885 }
2886
2887 if ($bug || $child_exit) {
2888 return 0 if $in_bisect;
2889 fail "test failed" and return 0;
2890 }
2891 return 1;
2892}
2893
2894sub run_git_bisect {
2895 my ($command) = @_;
2896
2897 doprint "$command ... ";
2898
2899 my $output = `$command 2>&1`;
2900 my $ret = $?;
2901
2902 logit $output;
2903
2904 if ($ret) {
2905 doprint "FAILED\n";
2906 dodie "Failed to git bisect";
2907 }
2908
2909 doprint "SUCCESS\n";
2910 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2911 doprint "$1 [$2]\n";
2912 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2913 $bisect_bad_commit = $1;
2914 doprint "Found bad commit... $1\n";
2915 return 0;
2916 } else {
2917 # we already logged it, just print it now.
2918 print $output;
2919 }
2920
2921 return 1;
2922}
2923
2924sub bisect_reboot {
2925 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2926 reboot_to_good $bisect_sleep_time;
2927}
2928
2929# returns 1 on success, 0 on failure, -1 on skip
2930sub run_bisect_test {
2931 my ($type, $buildtype) = @_;
2932
2933 my $failed = 0;
2934 my $result;
2935 my $output;
2936 my $ret;
2937
2938 $in_bisect = 1;
2939
2940 build $buildtype or $failed = 1;
2941
2942 if ($type ne "build") {
2943 if ($failed && $bisect_skip) {
2944 $in_bisect = 0;
2945 return -1;
2946 }
2947 dodie "Failed on build" if $failed;
2948
2949 # Now boot the box
2950 start_monitor_and_install or $failed = 1;
2951
2952 if ($type ne "boot") {
2953 if ($failed && $bisect_skip) {
2954 end_monitor;
2955 bisect_reboot;
2956 $in_bisect = 0;
2957 return -1;
2958 }
2959 dodie "Failed on boot" if $failed;
2960
2961 do_run_test or $failed = 1;
2962 }
2963 end_monitor;
2964 }
2965
2966 if ($failed) {
2967 $result = 0;
2968 } else {
2969 $result = 1;
2970 }
2971
2972 # reboot the box to a kernel we can ssh to
2973 if ($type ne "build") {
2974 bisect_reboot;
2975 }
2976 $in_bisect = 0;
2977
2978 return $result;
2979}
2980
2981sub run_bisect {
2982 my ($type) = @_;
2983 my $buildtype = "oldconfig";
2984
2985 # We should have a minconfig to use?
2986 if (defined($minconfig)) {
2987 $buildtype = "useconfig:$minconfig";
2988 }
2989
2990 # If the user sets bisect_tries to less than 1, then no tries
2991 # is a success.
2992 my $ret = 1;
2993
2994 # Still let the user manually decide that though.
2995 if ($bisect_tries < 1 && $bisect_manual) {
2996 $ret = answer_bisect;
2997 }
2998
2999 for (my $i = 0; $i < $bisect_tries; $i++) {
3000 if ($bisect_tries > 1) {
3001 my $t = $i + 1;
3002 doprint("Running bisect trial $t of $bisect_tries:\n");
3003 }
3004 $ret = run_bisect_test $type, $buildtype;
3005
3006 if ($bisect_manual) {
3007 $ret = answer_bisect;
3008 }
3009
3010 last if (!$ret);
3011 }
3012
3013 # Are we looking for where it worked, not failed?
3014 if ($reverse_bisect && $ret >= 0) {
3015 $ret = !$ret;
3016 }
3017
3018 if ($ret > 0) {
3019 return "good";
3020 } elsif ($ret == 0) {
3021 return "bad";
3022 } elsif ($bisect_skip) {
3023 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3024 return "skip";
3025 }
3026}
3027
3028sub update_bisect_replay {
3029 my $tmp_log = "$tmpdir/ktest_bisect_log";
3030 run_command "git bisect log > $tmp_log" or
3031 dodie "can't create bisect log";
3032 return $tmp_log;
3033}
3034
3035sub bisect {
3036 my ($i) = @_;
3037
3038 my $result;
3039
3040 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3041 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3042 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3043
3044 my $good = $bisect_good;
3045 my $bad = $bisect_bad;
3046 my $type = $bisect_type;
3047 my $start = $bisect_start;
3048 my $replay = $bisect_replay;
3049 my $start_files = $bisect_files;
3050
3051 if (defined($start_files)) {
3052 $start_files = " -- " . $start_files;
3053 } else {
3054 $start_files = "";
3055 }
3056
3057 # convert to true sha1's
3058 $good = get_sha1($good);
3059 $bad = get_sha1($bad);
3060
3061 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3062 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3063 $reverse_bisect = 1;
3064 } else {
3065 $reverse_bisect = 0;
3066 }
3067
3068 # Can't have a test without having a test to run
3069 if ($type eq "test" && !defined($run_test)) {
3070 $type = "boot";
3071 }
3072
3073 # Check if a bisect was running
3074 my $bisect_start_file = "$builddir/.git/BISECT_START";
3075
3076 my $check = $bisect_check;
3077 my $do_check = defined($check) && $check ne "0";
3078
3079 if ( -f $bisect_start_file ) {
3080 print "Bisect in progress found\n";
3081 if ($do_check) {
3082 print " If you say yes, then no checks of good or bad will be done\n";
3083 }
3084 if (defined($replay)) {
3085 print "** BISECT_REPLAY is defined in config file **";
3086 print " Ignore config option and perform new git bisect log?\n";
3087 if (read_ync " (yes, no, or cancel) ") {
3088 $replay = update_bisect_replay;
3089 $do_check = 0;
3090 }
3091 } elsif (read_yn "read git log and continue?") {
3092 $replay = update_bisect_replay;
3093 $do_check = 0;
3094 }
3095 }
3096
3097 if ($do_check) {
3098 # get current HEAD
3099 my $head = get_sha1("HEAD");
3100
3101 if ($check ne "good") {
3102 doprint "TESTING BISECT BAD [$bad]\n";
3103 run_command "git checkout $bad" or
3104 dodie "Failed to checkout $bad";
3105
3106 $result = run_bisect $type;
3107
3108 if ($result ne "bad") {
3109 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3110 }
3111 }
3112
3113 if ($check ne "bad") {
3114 doprint "TESTING BISECT GOOD [$good]\n";
3115 run_command "git checkout $good" or
3116 dodie "Failed to checkout $good";
3117
3118 $result = run_bisect $type;
3119
3120 if ($result ne "good") {
3121 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3122 }
3123 }
3124
3125 # checkout where we started
3126 run_command "git checkout $head" or
3127 dodie "Failed to checkout $head";
3128 }
3129
3130 run_command "git bisect start$start_files" or
3131 dodie "could not start bisect";
3132
3133 if (defined($replay)) {
3134 run_command "git bisect replay $replay" or
3135 dodie "failed to run replay";
3136 } else {
3137 run_command "git bisect good $good" or
3138 dodie "could not set bisect good to $good";
3139
3140 run_git_bisect "git bisect bad $bad" or
3141 dodie "could not set bisect bad to $bad";
3142 }
3143
3144 if (defined($start)) {
3145 run_command "git checkout $start" or
3146 dodie "failed to checkout $start";
3147 }
3148
3149 my $test;
3150 do {
3151 $result = run_bisect $type;
3152 $test = run_git_bisect "git bisect $result";
3153 print_times;
3154 } while ($test);
3155
3156 run_command "git bisect log" or
3157 dodie "could not capture git bisect log";
3158
3159 run_command "git bisect reset" or
3160 dodie "could not reset git bisect";
3161
3162 doprint "Bad commit was [$bisect_bad_commit]\n";
3163
3164 success $i;
3165}
3166
3167sub assign_configs {
3168 my ($hash, $config) = @_;
3169
3170 doprint "Reading configs from $config\n";
3171
3172 open (IN, $config) or
3173 dodie "Failed to read $config";
3174
3175 while (<IN>) {
3176 chomp;
3177 if (/^((CONFIG\S*)=.*)/) {
3178 ${$hash}{$2} = $1;
3179 } elsif (/^(# (CONFIG\S*) is not set)/) {
3180 ${$hash}{$2} = $1;
3181 }
3182 }
3183
3184 close(IN);
3185}
3186
3187sub process_config_ignore {
3188 my ($config) = @_;
3189
3190 assign_configs \%config_ignore, $config;
3191}
3192
3193sub get_dependencies {
3194 my ($config) = @_;
3195
3196 my $arr = $dependency{$config};
3197 if (!defined($arr)) {
3198 return ();
3199 }
3200
3201 my @deps = @{$arr};
3202
3203 foreach my $dep (@{$arr}) {
3204 print "ADD DEP $dep\n";
3205 @deps = (@deps, get_dependencies $dep);
3206 }
3207
3208 return @deps;
3209}
3210
3211sub save_config {
3212 my ($pc, $file) = @_;
3213
3214 my %configs = %{$pc};
3215
3216 doprint "Saving configs into $file\n";
3217
3218 open(OUT, ">$file") or dodie "Can not write to $file";
3219
3220 foreach my $config (keys %configs) {
3221 print OUT "$configs{$config}\n";
3222 }
3223 close(OUT);
3224}
3225
3226sub create_config {
3227 my ($name, $pc) = @_;
3228
3229 doprint "Creating old config from $name configs\n";
3230
3231 save_config $pc, $output_config;
3232
3233 make_oldconfig;
3234}
3235
3236sub run_config_bisect_test {
3237 my ($type) = @_;
3238
3239 my $ret = run_bisect_test $type, "oldconfig";
3240
3241 if ($bisect_manual) {
3242 $ret = answer_bisect;
3243 }
3244
3245 return $ret;
3246}
3247
3248sub config_bisect_end {
3249 my ($good, $bad) = @_;
3250 my $diffexec = "diff -u";
3251
3252 if (-f "$builddir/scripts/diffconfig") {
3253 $diffexec = "$builddir/scripts/diffconfig";
3254 }
3255 doprint "\n\n***************************************\n";
3256 doprint "No more config bisecting possible.\n";
3257 run_command "$diffexec $good $bad", 1;
3258 doprint "***************************************\n\n";
3259}
3260
3261sub run_config_bisect {
3262 my ($good, $bad, $last_result) = @_;
3263 my $reset = "";
3264 my $cmd;
3265 my $ret;
3266
3267 if (!length($last_result)) {
3268 $reset = "-r";
3269 }
3270 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3271
3272 # config-bisect returns:
3273 # 0 if there is more to bisect
3274 # 1 for finding a good config
3275 # 2 if it can not find any more configs
3276 # -1 (255) on error
3277 if ($run_command_status) {
3278 return $run_command_status;
3279 }
3280
3281 $ret = run_config_bisect_test $config_bisect_type;
3282 if ($ret) {
3283 doprint "NEW GOOD CONFIG ($pass)\n";
3284 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3285 $pass++;
3286 # Return 3 for good config
3287 return 3;
3288 } else {
3289 doprint "NEW BAD CONFIG ($pass)\n";
3290 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3291 $pass++;
3292 # Return 4 for bad config
3293 return 4;
3294 }
3295}
3296
3297sub config_bisect {
3298 my ($i) = @_;
3299
3300 my $good_config;
3301 my $bad_config;
3302
3303 my $type = $config_bisect_type;
3304 my $ret;
3305
3306 $bad_config = $config_bisect;
3307
3308 if (defined($config_bisect_good)) {
3309 $good_config = $config_bisect_good;
3310 } elsif (defined($minconfig)) {
3311 $good_config = $minconfig;
3312 } else {
3313 doprint "No config specified, checking if defconfig works";
3314 $ret = run_bisect_test $type, "defconfig";
3315 if (!$ret) {
3316 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3317 return 1;
3318 }
3319 $good_config = $output_config;
3320 }
3321
3322 if (!defined($config_bisect_exec)) {
3323 # First check the location that ktest.pl ran
3324 my @locations = (
3325 "$pwd/config-bisect.pl",
3326 "$dirname/config-bisect.pl",
3327 "$builddir/tools/testing/ktest/config-bisect.pl",
3328 undef );
3329 foreach my $loc (@locations) {
3330 doprint "loc = $loc\n";
3331 $config_bisect_exec = $loc;
3332 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3333 }
3334 if (!defined($config_bisect_exec)) {
3335 fail "Could not find an executable config-bisect.pl\n",
3336 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3337 return 1;
3338 }
3339 }
3340
3341 # we don't want min configs to cause issues here.
3342 doprint "Disabling 'MIN_CONFIG' for this test\n";
3343 undef $minconfig;
3344
3345 my %good_configs;
3346 my %bad_configs;
3347 my %tmp_configs;
3348
3349 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3350 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3351 if (-f "$tmpdir/good_config.tmp") {
3352 $good_config = "$tmpdir/good_config.tmp";
3353 } else {
3354 $good_config = "$tmpdir/good_config";
3355 }
3356 if (-f "$tmpdir/bad_config.tmp") {
3357 $bad_config = "$tmpdir/bad_config.tmp";
3358 } else {
3359 $bad_config = "$tmpdir/bad_config";
3360 }
3361 }
3362 }
3363 doprint "Run good configs through make oldconfig\n";
3364 assign_configs \%tmp_configs, $good_config;
3365 create_config "$good_config", \%tmp_configs;
3366 $good_config = "$tmpdir/good_config";
3367 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3368
3369 doprint "Run bad configs through make oldconfig\n";
3370 assign_configs \%tmp_configs, $bad_config;
3371 create_config "$bad_config", \%tmp_configs;
3372 $bad_config = "$tmpdir/bad_config";
3373 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3374
3375 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3376 if ($config_bisect_check ne "good") {
3377 doprint "Testing bad config\n";
3378
3379 $ret = run_bisect_test $type, "useconfig:$bad_config";
3380 if ($ret) {
3381 fail "Bad config succeeded when expected to fail!";
3382 return 0;
3383 }
3384 }
3385 if ($config_bisect_check ne "bad") {
3386 doprint "Testing good config\n";
3387
3388 $ret = run_bisect_test $type, "useconfig:$good_config";
3389 if (!$ret) {
3390 fail "Good config failed when expected to succeed!";
3391 return 0;
3392 }
3393 }
3394 }
3395
3396 my $last_run = "";
3397
3398 do {
3399 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3400 if ($ret == 3) {
3401 $last_run = "good";
3402 } elsif ($ret == 4) {
3403 $last_run = "bad";
3404 }
3405 print_times;
3406 } while ($ret == 3 || $ret == 4);
3407
3408 if ($ret == 2) {
3409 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3410 }
3411
3412 return $ret if ($ret < 0);
3413
3414 success $i;
3415}
3416
3417sub patchcheck_reboot {
3418 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3419 reboot_to_good $patchcheck_sleep_time;
3420}
3421
3422sub patchcheck {
3423 my ($i) = @_;
3424
3425 dodie "PATCHCHECK_START[$i] not defined\n"
3426 if (!defined($patchcheck_start));
3427 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3428 if (!defined($patchcheck_type));
3429
3430 my $start = $patchcheck_start;
3431
3432 my $cherry = $patchcheck_cherry;
3433 if (!defined($cherry)) {
3434 $cherry = 0;
3435 }
3436
3437 my $end = "HEAD";
3438 if (defined($patchcheck_end)) {
3439 $end = $patchcheck_end;
3440 } elsif ($cherry) {
3441 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3442 }
3443
3444 # Get the true sha1's since we can use things like HEAD~3
3445 $start = get_sha1($start);
3446 $end = get_sha1($end);
3447
3448 my $type = $patchcheck_type;
3449
3450 # Can't have a test without having a test to run
3451 if ($type eq "test" && !defined($run_test)) {
3452 $type = "boot";
3453 }
3454
3455 if ($cherry) {
3456 open (IN, "git cherry -v $start $end|") or
3457 dodie "could not get git list";
3458 } else {
3459 open (IN, "git log --pretty=oneline $end|") or
3460 dodie "could not get git list";
3461 }
3462
3463 my @list;
3464
3465 while (<IN>) {
3466 chomp;
3467 # git cherry adds a '+' we want to remove
3468 s/^\+ //;
3469 $list[$#list+1] = $_;
3470 last if (/^$start/);
3471 }
3472 close(IN);
3473
3474 if (!$cherry) {
3475 if ($list[$#list] !~ /^$start/) {
3476 fail "SHA1 $start not found";
3477 }
3478
3479 # go backwards in the list
3480 @list = reverse @list;
3481 }
3482
3483 doprint("Going to test the following commits:\n");
3484 foreach my $l (@list) {
3485 doprint "$l\n";
3486 }
3487
3488 my $save_clean = $noclean;
3489 my %ignored_warnings;
3490
3491 if (defined($ignore_warnings)) {
3492 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3493 $ignored_warnings{$sha1} = 1;
3494 }
3495 }
3496
3497 $in_patchcheck = 1;
3498 foreach my $item (@list) {
3499 my $sha1 = $item;
3500 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3501
3502 doprint "\nProcessing commit \"$item\"\n\n";
3503
3504 run_command "git checkout $sha1" or
3505 dodie "Failed to checkout $sha1";
3506
3507 # only clean on the first and last patch
3508 if ($item eq $list[0] ||
3509 $item eq $list[$#list]) {
3510 $noclean = $save_clean;
3511 } else {
3512 $noclean = 1;
3513 }
3514
3515 if (defined($minconfig)) {
3516 build "useconfig:$minconfig" or return 0;
3517 } else {
3518 # ?? no config to use?
3519 build "oldconfig" or return 0;
3520 }
3521
3522 # No need to do per patch checking if warnings file exists
3523 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3524 check_patch_buildlog $sha1 or return 0;
3525 }
3526
3527 check_buildlog or return 0;
3528
3529 next if ($type eq "build");
3530
3531 my $failed = 0;
3532
3533 start_monitor_and_install or $failed = 1;
3534
3535 if (!$failed && $type ne "boot"){
3536 do_run_test or $failed = 1;
3537 }
3538 end_monitor;
3539 if ($failed) {
3540 print_times;
3541 return 0;
3542 }
3543 patchcheck_reboot;
3544 print_times;
3545 }
3546 $in_patchcheck = 0;
3547 success $i;
3548
3549 return 1;
3550}
3551
3552sub add_dep {
3553 # $config depends on $dep
3554 my ($config, $dep) = @_;
3555
3556 if (defined($depends{$config})) {
3557 $depends{$config} .= " " . $dep;
3558 } else {
3559 $depends{$config} = $dep;
3560 }
3561
3562 # record the number of configs depending on $dep
3563 if (defined $depcount{$dep}) {
3564 $depcount{$dep}++;
3565 } else {
3566 $depcount{$dep} = 1;
3567 }
3568}
3569
3570# taken from streamline_config.pl
3571sub read_kconfig {
3572 my ($kconfig) = @_;
3573
3574 my $state = "NONE";
3575 my $config;
3576 my @kconfigs;
3577
3578 my $cont = 0;
3579 my $line;
3580
3581 if (! -f $kconfig) {
3582 doprint "file $kconfig does not exist, skipping\n";
3583 return;
3584 }
3585
3586 open(KIN, "$kconfig")
3587 or dodie "Can't open $kconfig";
3588 while (<KIN>) {
3589 chomp;
3590
3591 # Make sure that lines ending with \ continue
3592 if ($cont) {
3593 $_ = $line . " " . $_;
3594 }
3595
3596 if (s/\\$//) {
3597 $cont = 1;
3598 $line = $_;
3599 next;
3600 }
3601
3602 $cont = 0;
3603
3604 # collect any Kconfig sources
3605 if (/^source\s*"(.*)"/) {
3606 $kconfigs[$#kconfigs+1] = $1;
3607 }
3608
3609 # configs found
3610 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3611 $state = "NEW";
3612 $config = $2;
3613
3614 for (my $i = 0; $i < $iflevel; $i++) {
3615 add_dep $config, $ifdeps[$i];
3616 }
3617
3618 # collect the depends for the config
3619 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3620
3621 add_dep $config, $1;
3622
3623 # Get the configs that select this config
3624 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3625
3626 # selected by depends on config
3627 add_dep $1, $config;
3628
3629 # Check for if statements
3630 } elsif (/^if\s+(.*\S)\s*$/) {
3631 my $deps = $1;
3632 # remove beginning and ending non text
3633 $deps =~ s/^[^a-zA-Z0-9_]*//;
3634 $deps =~ s/[^a-zA-Z0-9_]*$//;
3635
3636 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3637
3638 $ifdeps[$iflevel++] = join ':', @deps;
3639
3640 } elsif (/^endif/) {
3641
3642 $iflevel-- if ($iflevel);
3643
3644 # stop on "help"
3645 } elsif (/^\s*help\s*$/) {
3646 $state = "NONE";
3647 }
3648 }
3649 close(KIN);
3650
3651 # read in any configs that were found.
3652 foreach $kconfig (@kconfigs) {
3653 if (!defined($read_kconfigs{$kconfig})) {
3654 $read_kconfigs{$kconfig} = 1;
3655 read_kconfig("$builddir/$kconfig");
3656 }
3657 }
3658}
3659
3660sub read_depends {
3661 # find out which arch this is by the kconfig file
3662 open (IN, $output_config) or
3663 dodie "Failed to read $output_config";
3664 my $arch;
3665 while (<IN>) {
3666 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3667 $arch = $1;
3668 last;
3669 }
3670 }
3671 close IN;
3672
3673 if (!defined($arch)) {
3674 doprint "Could not find arch from config file\n";
3675 doprint "no dependencies used\n";
3676 return;
3677 }
3678
3679 # arch is really the subarch, we need to know
3680 # what directory to look at.
3681 if ($arch eq "i386" || $arch eq "x86_64") {
3682 $arch = "x86";
3683 }
3684
3685 my $kconfig = "$builddir/arch/$arch/Kconfig";
3686
3687 if (! -f $kconfig && $arch =~ /\d$/) {
3688 my $orig = $arch;
3689 # some subarchs have numbers, truncate them
3690 $arch =~ s/\d*$//;
3691 $kconfig = "$builddir/arch/$arch/Kconfig";
3692 if (! -f $kconfig) {
3693 doprint "No idea what arch dir $orig is for\n";
3694 doprint "no dependencies used\n";
3695 return;
3696 }
3697 }
3698
3699 read_kconfig($kconfig);
3700}
3701
3702sub make_new_config {
3703 my @configs = @_;
3704
3705 open (OUT, ">$output_config")
3706 or dodie "Failed to write $output_config";
3707
3708 foreach my $config (@configs) {
3709 print OUT "$config\n";
3710 }
3711 close OUT;
3712}
3713
3714sub chomp_config {
3715 my ($config) = @_;
3716
3717 $config =~ s/CONFIG_//;
3718
3719 return $config;
3720}
3721
3722sub get_depends {
3723 my ($dep) = @_;
3724
3725 my $kconfig = chomp_config $dep;
3726
3727 $dep = $depends{"$kconfig"};
3728
3729 # the dep string we have saves the dependencies as they
3730 # were found, including expressions like ! && ||. We
3731 # want to split this out into just an array of configs.
3732
3733 my $valid = "A-Za-z_0-9";
3734
3735 my @configs;
3736
3737 while ($dep =~ /[$valid]/) {
3738 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3739 my $conf = "CONFIG_" . $1;
3740
3741 $configs[$#configs + 1] = $conf;
3742
3743 $dep =~ s/^[^$valid]*[$valid]+//;
3744 } else {
3745 dodie "this should never happen";
3746 }
3747 }
3748
3749 return @configs;
3750}
3751
3752sub test_this_config {
3753 my ($config) = @_;
3754
3755 my $found;
3756
3757 # if we already processed this config, skip it
3758 if (defined($processed_configs{$config})) {
3759 return undef;
3760 }
3761 $processed_configs{$config} = 1;
3762
3763 # if this config failed during this round, skip it
3764 if (defined($nochange_config{$config})) {
3765 return undef;
3766 }
3767
3768 my $kconfig = chomp_config $config;
3769
3770 # Test dependencies first
3771 if (defined($depends{"$kconfig"})) {
3772 my @parents = get_depends $config;
3773 foreach my $parent (@parents) {
3774 # if the parent is in the min config, check it first
3775 next if (!defined($min_configs{$parent}));
3776 $found = test_this_config($parent);
3777 if (defined($found)) {
3778 return $found;
3779 }
3780 }
3781 }
3782
3783 # Remove this config from the list of configs
3784 # do a make olddefconfig and then read the resulting
3785 # .config to make sure it is missing the config that
3786 # we had before
3787 my %configs = %min_configs;
3788 $configs{$config} = "# $config is not set";
3789 make_new_config ((values %configs), (values %keep_configs));
3790 make_oldconfig;
3791 delete $configs{$config};
3792 undef %configs;
3793 assign_configs \%configs, $output_config;
3794
3795 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3796 return $config;
3797 }
3798
3799 doprint "disabling config $config did not change .config\n";
3800
3801 $nochange_config{$config} = 1;
3802
3803 return undef;
3804}
3805
3806sub make_min_config {
3807 my ($i) = @_;
3808
3809 my $type = $minconfig_type;
3810 if ($type ne "boot" && $type ne "test") {
3811 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3812 " make_min_config works only with 'boot' and 'test'\n" and return;
3813 }
3814
3815 if (!defined($output_minconfig)) {
3816 fail "OUTPUT_MIN_CONFIG not defined" and return;
3817 }
3818
3819 # If output_minconfig exists, and the start_minconfig
3820 # came from min_config, than ask if we should use
3821 # that instead.
3822 if (-f $output_minconfig && !$start_minconfig_defined) {
3823 print "$output_minconfig exists\n";
3824 if (!defined($use_output_minconfig)) {
3825 if (read_yn " Use it as minconfig?") {
3826 $start_minconfig = $output_minconfig;
3827 }
3828 } elsif ($use_output_minconfig > 0) {
3829 doprint "Using $output_minconfig as MIN_CONFIG\n";
3830 $start_minconfig = $output_minconfig;
3831 } else {
3832 doprint "Set to still use MIN_CONFIG as starting point\n";
3833 }
3834 }
3835
3836 if (!defined($start_minconfig)) {
3837 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3838 }
3839
3840 my $temp_config = "$tmpdir/temp_config";
3841
3842 # First things first. We build an allnoconfig to find
3843 # out what the defaults are that we can't touch.
3844 # Some are selections, but we really can't handle selections.
3845
3846 my $save_minconfig = $minconfig;
3847 undef $minconfig;
3848
3849 run_command "$make allnoconfig" or return 0;
3850
3851 read_depends;
3852
3853 process_config_ignore $output_config;
3854
3855 undef %save_configs;
3856 undef %min_configs;
3857
3858 if (defined($ignore_config)) {
3859 # make sure the file exists
3860 `touch $ignore_config`;
3861 assign_configs \%save_configs, $ignore_config;
3862 }
3863
3864 %keep_configs = %save_configs;
3865
3866 doprint "Load initial configs from $start_minconfig\n";
3867
3868 # Look at the current min configs, and save off all the
3869 # ones that were set via the allnoconfig
3870 assign_configs \%min_configs, $start_minconfig;
3871
3872 my @config_keys = keys %min_configs;
3873
3874 # All configs need a depcount
3875 foreach my $config (@config_keys) {
3876 my $kconfig = chomp_config $config;
3877 if (!defined $depcount{$kconfig}) {
3878 $depcount{$kconfig} = 0;
3879 }
3880 }
3881
3882 # Remove anything that was set by the make allnoconfig
3883 # we shouldn't need them as they get set for us anyway.
3884 foreach my $config (@config_keys) {
3885 # Remove anything in the ignore_config
3886 if (defined($keep_configs{$config})) {
3887 my $file = $ignore_config;
3888 $file =~ s,.*/(.*?)$,$1,;
3889 doprint "$config set by $file ... ignored\n";
3890 delete $min_configs{$config};
3891 next;
3892 }
3893 # But make sure the settings are the same. If a min config
3894 # sets a selection, we do not want to get rid of it if
3895 # it is not the same as what we have. Just move it into
3896 # the keep configs.
3897 if (defined($config_ignore{$config})) {
3898 if ($config_ignore{$config} ne $min_configs{$config}) {
3899 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3900 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3901 $keep_configs{$config} = $min_configs{$config};
3902 } else {
3903 doprint "$config set by allnoconfig ... ignored\n";
3904 }
3905 delete $min_configs{$config};
3906 }
3907 }
3908
3909 my $done = 0;
3910 my $take_two = 0;
3911
3912 while (!$done) {
3913 my $config;
3914 my $found;
3915
3916 # Now disable each config one by one and do a make oldconfig
3917 # till we find a config that changes our list.
3918
3919 my @test_configs = keys %min_configs;
3920
3921 # Sort keys by who is most dependent on
3922 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3923 @test_configs ;
3924
3925 # Put configs that did not modify the config at the end.
3926 my $reset = 1;
3927 for (my $i = 0; $i < $#test_configs; $i++) {
3928 if (!defined($nochange_config{$test_configs[0]})) {
3929 $reset = 0;
3930 last;
3931 }
3932 # This config didn't change the .config last time.
3933 # Place it at the end
3934 my $config = shift @test_configs;
3935 push @test_configs, $config;
3936 }
3937
3938 # if every test config has failed to modify the .config file
3939 # in the past, then reset and start over.
3940 if ($reset) {
3941 undef %nochange_config;
3942 }
3943
3944 undef %processed_configs;
3945
3946 foreach my $config (@test_configs) {
3947
3948 $found = test_this_config $config;
3949
3950 last if (defined($found));
3951
3952 # oh well, try another config
3953 }
3954
3955 if (!defined($found)) {
3956 # we could have failed due to the nochange_config hash
3957 # reset and try again
3958 if (!$take_two) {
3959 undef %nochange_config;
3960 $take_two = 1;
3961 next;
3962 }
3963 doprint "No more configs found that we can disable\n";
3964 $done = 1;
3965 last;
3966 }
3967 $take_two = 0;
3968
3969 $config = $found;
3970
3971 doprint "Test with $config disabled\n";
3972
3973 # set in_bisect to keep build and monitor from dieing
3974 $in_bisect = 1;
3975
3976 my $failed = 0;
3977 build "oldconfig" or $failed = 1;
3978 if (!$failed) {
3979 start_monitor_and_install or $failed = 1;
3980
3981 if ($type eq "test" && !$failed) {
3982 do_run_test or $failed = 1;
3983 }
3984
3985 end_monitor;
3986 }
3987
3988 $in_bisect = 0;
3989
3990 if ($failed) {
3991 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3992 # this config is needed, add it to the ignore list.
3993 $keep_configs{$config} = $min_configs{$config};
3994 $save_configs{$config} = $min_configs{$config};
3995 delete $min_configs{$config};
3996
3997 # update new ignore configs
3998 if (defined($ignore_config)) {
3999 open (OUT, ">$temp_config") or
4000 dodie "Can't write to $temp_config";
4001 foreach my $config (keys %save_configs) {
4002 print OUT "$save_configs{$config}\n";
4003 }
4004 close OUT;
4005 run_command "mv $temp_config $ignore_config" or
4006 dodie "failed to copy update to $ignore_config";
4007 }
4008
4009 } else {
4010 # We booted without this config, remove it from the minconfigs.
4011 doprint "$config is not needed, disabling\n";
4012
4013 delete $min_configs{$config};
4014
4015 # Also disable anything that is not enabled in this config
4016 my %configs;
4017 assign_configs \%configs, $output_config;
4018 my @config_keys = keys %min_configs;
4019 foreach my $config (@config_keys) {
4020 if (!defined($configs{$config})) {
4021 doprint "$config is not set, disabling\n";
4022 delete $min_configs{$config};
4023 }
4024 }
4025
4026 # Save off all the current mandatory configs
4027 open (OUT, ">$temp_config") or
4028 dodie "Can't write to $temp_config";
4029 foreach my $config (keys %keep_configs) {
4030 print OUT "$keep_configs{$config}\n";
4031 }
4032 foreach my $config (keys %min_configs) {
4033 print OUT "$min_configs{$config}\n";
4034 }
4035 close OUT;
4036
4037 run_command "mv $temp_config $output_minconfig" or
4038 dodie "failed to copy update to $output_minconfig";
4039 }
4040
4041 doprint "Reboot and wait $sleep_time seconds\n";
4042 reboot_to_good $sleep_time;
4043 }
4044
4045 success $i;
4046 return 1;
4047}
4048
4049sub make_warnings_file {
4050 my ($i) = @_;
4051
4052 if (!defined($warnings_file)) {
4053 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4054 }
4055
4056 if ($build_type eq "nobuild") {
4057 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4058 }
4059
4060 build $build_type or dodie "Failed to build";
4061
4062 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4063
4064 open(IN, $buildlog) or dodie "Can't open $buildlog";
4065 while (<IN>) {
4066 # Some compilers use UTF-8 extended for quotes
4067 # for distcc heterogeneous systems, this causes issues
4068 s/$utf8_quote/'/g;
4069
4070 if (/$check_build_re/) {
4071 print OUT;
4072 }
4073 }
4074 close(IN);
4075
4076 close(OUT);
4077
4078 success $i;
4079}
4080
4081sub option_defined {
4082 my ($option) = @_;
4083
4084 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4085 return 1;
4086 }
4087
4088 return 0;
4089}
4090
4091sub __set_test_option {
4092 my ($name, $i) = @_;
4093
4094 my $option = "$name\[$i\]";
4095
4096 if (option_defined($option)) {
4097 return $opt{$option};
4098 }
4099
4100 foreach my $test (keys %repeat_tests) {
4101 if ($i >= $test &&
4102 $i < $test + $repeat_tests{$test}) {
4103 $option = "$name\[$test\]";
4104 if (option_defined($option)) {
4105 return $opt{$option};
4106 }
4107 }
4108 }
4109
4110 if (option_defined($name)) {
4111 return $opt{$name};
4112 }
4113
4114 return undef;
4115}
4116
4117sub set_test_option {
4118 my ($name, $i) = @_;
4119
4120 my $option = __set_test_option($name, $i);
4121 return $option if (!defined($option));
4122
4123 return eval_option($name, $option, $i);
4124}
4125
4126sub find_mailer {
4127 my ($mailer) = @_;
4128
4129 my @paths = split /:/, $ENV{PATH};
4130
4131 # sendmail is usually in /usr/sbin
4132 $paths[$#paths + 1] = "/usr/sbin";
4133
4134 foreach my $path (@paths) {
4135 if (-x "$path/$mailer") {
4136 return $path;
4137 }
4138 }
4139
4140 return undef;
4141}
4142
4143sub do_send_mail {
4144 my ($subject, $message, $file) = @_;
4145
4146 if (!defined($mail_path)) {
4147 # find the mailer
4148 $mail_path = find_mailer $mailer;
4149 if (!defined($mail_path)) {
4150 die "\nCan not find $mailer in PATH\n";
4151 }
4152 }
4153
4154 my $header_file = "$tmpdir/header";
4155 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4156 print HEAD "To: $mailto\n";
4157 print HEAD "Subject: $subject\n\n";
4158 print HEAD "$message\n";
4159 close HEAD;
4160
4161 if (!defined($mail_command)) {
4162 if ($mailer eq "mail" || $mailer eq "mailx") {
4163 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4164 } elsif ($mailer eq "sendmail" ) {
4165 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4166 } else {
4167 die "\nYour mailer: $mailer is not supported.\n";
4168 }
4169 }
4170
4171 if (defined($file)) {
4172 $mail_command =~ s/\$BODY_FILE/$file/g;
4173 } else {
4174 $mail_command =~ s/\$BODY_FILE//g;
4175 }
4176
4177 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4178 $mail_command =~ s/\$MAILER/$mailer/g;
4179 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4180 $mail_command =~ s/\$MAILTO/$mailto/g;
4181 $mail_command =~ s/\$SUBJECT/$subject/g;
4182 $mail_command =~ s/\$MESSAGE/$message/g;
4183
4184 my $ret = run_command $mail_command;
4185 if (!$ret && defined($file)) {
4186 # try again without the file
4187 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4188 do_send_email($subject, $message);
4189 }
4190}
4191
4192sub send_email {
4193 if (defined($mailto)) {
4194 if (!defined($mailer)) {
4195 doprint "No email sent: email or mailer not specified in config.\n";
4196 return;
4197 }
4198 do_send_mail @_;
4199 }
4200}
4201
4202sub cancel_test {
4203 if ($email_when_canceled) {
4204 my $name = get_test_name;
4205 send_email("KTEST: Your [$name] test was cancelled",
4206 "Your test started at $script_start_time was cancelled: sig int");
4207 }
4208 die "\nCaught Sig Int, test interrupted: $!\n"
4209}
4210
4211$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4212
4213if ($#ARGV == 0) {
4214 $ktest_config = $ARGV[0];
4215 if (! -f $ktest_config) {
4216 print "$ktest_config does not exist.\n";
4217 if (!read_yn "Create it?") {
4218 exit 0;
4219 }
4220 }
4221}
4222
4223if (! -f $ktest_config) {
4224 $newconfig = 1;
4225 get_test_case;
4226 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4227 print OUT << "EOF"
4228# Generated by ktest.pl
4229#
4230
4231# PWD is a ktest.pl variable that will result in the process working
4232# directory that ktest.pl is executed in.
4233
4234# THIS_DIR is automatically assigned the PWD of the path that generated
4235# the config file. It is best to use this variable when assigning other
4236# directory paths within this directory. This allows you to easily
4237# move the test cases to other locations or to other machines.
4238#
4239THIS_DIR := $variable{"PWD"}
4240
4241# Define each test with TEST_START
4242# The config options below it will override the defaults
4243TEST_START
4244TEST_TYPE = $default{"TEST_TYPE"}
4245
4246DEFAULTS
4247EOF
4248;
4249 close(OUT);
4250}
4251read_config $ktest_config;
4252
4253if (defined($opt{"LOG_FILE"})) {
4254 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4255}
4256
4257# Append any configs entered in manually to the config file.
4258my @new_configs = keys %entered_configs;
4259if ($#new_configs >= 0) {
4260 print "\nAppending entered in configs to $ktest_config\n";
4261 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4262 foreach my $config (@new_configs) {
4263 print OUT "$config = $entered_configs{$config}\n";
4264 $opt{$config} = process_variables($entered_configs{$config});
4265 }
4266}
4267
4268if (defined($opt{"LOG_FILE"})) {
4269 if ($opt{"CLEAR_LOG"}) {
4270 unlink $opt{"LOG_FILE"};
4271 }
4272 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4273 LOG->autoflush(1);
4274}
4275
4276doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4277
4278for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4279
4280 if (!$i) {
4281 doprint "DEFAULT OPTIONS:\n";
4282 } else {
4283 doprint "\nTEST $i OPTIONS";
4284 if (defined($repeat_tests{$i})) {
4285 $repeat = $repeat_tests{$i};
4286 doprint " ITERATE $repeat";
4287 }
4288 doprint "\n";
4289 }
4290
4291 foreach my $option (sort keys %opt) {
4292 if ($option =~ /\[(\d+)\]$/) {
4293 next if ($i != $1);
4294 } else {
4295 next if ($i);
4296 }
4297
4298 doprint "$option = $opt{$option}\n";
4299 }
4300}
4301
4302$SIG{INT} = qw(cancel_test);
4303
4304# First we need to do is the builds
4305for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4306
4307 # Do not reboot on failing test options
4308 $no_reboot = 1;
4309 $reboot_success = 0;
4310
4311 $have_version = 0;
4312
4313 $iteration = $i;
4314
4315 $build_time = 0;
4316 $install_time = 0;
4317 $reboot_time = 0;
4318 $test_time = 0;
4319
4320 undef %force_config;
4321
4322 my $makecmd = set_test_option("MAKE_CMD", $i);
4323
4324 $outputdir = set_test_option("OUTPUT_DIR", $i);
4325 $builddir = set_test_option("BUILD_DIR", $i);
4326
4327 chdir $builddir || dodie "can't change directory to $builddir";
4328
4329 if (!-d $outputdir) {
4330 mkpath($outputdir) or
4331 dodie "can't create $outputdir";
4332 }
4333
4334 $make = "$makecmd O=$outputdir";
4335
4336 # Load all the options into their mapped variable names
4337 foreach my $opt (keys %option_map) {
4338 ${$option_map{$opt}} = set_test_option($opt, $i);
4339 }
4340
4341 $start_minconfig_defined = 1;
4342
4343 # The first test may override the PRE_KTEST option
4344 if ($i == 1) {
4345 if (defined($pre_ktest)) {
4346 doprint "\n";
4347 run_command $pre_ktest;
4348 }
4349 if ($email_when_started) {
4350 my $name = get_test_name;
4351 send_email("KTEST: Your [$name] test was started",
4352 "Your test was started on $script_start_time");
4353 }
4354 }
4355
4356 # Any test can override the POST_KTEST option
4357 # The last test takes precedence.
4358 if (defined($post_ktest)) {
4359 $final_post_ktest = $post_ktest;
4360 }
4361
4362 if (!defined($start_minconfig)) {
4363 $start_minconfig_defined = 0;
4364 $start_minconfig = $minconfig;
4365 }
4366
4367 if (!-d $tmpdir) {
4368 mkpath($tmpdir) or
4369 dodie "can't create $tmpdir";
4370 }
4371
4372 $ENV{"SSH_USER"} = $ssh_user;
4373 $ENV{"MACHINE"} = $machine;
4374
4375 $buildlog = "$tmpdir/buildlog-$machine";
4376 $testlog = "$tmpdir/testlog-$machine";
4377 $dmesg = "$tmpdir/dmesg-$machine";
4378 $output_config = "$outputdir/.config";
4379
4380 if (!$buildonly) {
4381 $target = "$ssh_user\@$machine";
4382 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4383 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4384 } elsif ($reboot_type eq "grub2") {
4385 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4386 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4387 } elsif ($reboot_type eq "syslinux") {
4388 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4389 }
4390 }
4391
4392 my $run_type = $build_type;
4393 if ($test_type eq "patchcheck") {
4394 $run_type = $patchcheck_type;
4395 } elsif ($test_type eq "bisect") {
4396 $run_type = $bisect_type;
4397 } elsif ($test_type eq "config_bisect") {
4398 $run_type = $config_bisect_type;
4399 } elsif ($test_type eq "make_min_config") {
4400 $run_type = "";
4401 } elsif ($test_type eq "make_warnings_file") {
4402 $run_type = "";
4403 }
4404
4405 # mistake in config file?
4406 if (!defined($run_type)) {
4407 $run_type = "ERROR";
4408 }
4409
4410 my $installme = "";
4411 $installme = " no_install" if ($no_install);
4412
4413 my $name = "";
4414
4415 if (defined($test_name)) {
4416 $name = " ($test_name)";
4417 }
4418
4419 doprint "\n\n";
4420
4421 if (defined($opt{"LOG_FILE"})) {
4422 $test_log_start = tell(LOG);
4423 }
4424
4425 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4426
4427 if (defined($pre_test)) {
4428 my $ret = run_command $pre_test;
4429 if (!$ret && defined($pre_test_die) &&
4430 $pre_test_die) {
4431 dodie "failed to pre_test\n";
4432 }
4433 }
4434
4435 unlink $dmesg;
4436 unlink $buildlog;
4437 unlink $testlog;
4438
4439 if (defined($addconfig)) {
4440 my $min = $minconfig;
4441 if (!defined($minconfig)) {
4442 $min = "";
4443 }
4444 run_command "cat $addconfig $min > $tmpdir/add_config" or
4445 dodie "Failed to create temp config";
4446 $minconfig = "$tmpdir/add_config";
4447 }
4448
4449 if (defined($checkout)) {
4450 run_command "git checkout $checkout" or
4451 dodie "failed to checkout $checkout";
4452 }
4453
4454 $no_reboot = 0;
4455
4456 # A test may opt to not reboot the box
4457 if ($reboot_on_success) {
4458 $reboot_success = 1;
4459 }
4460
4461 if ($test_type eq "bisect") {
4462 bisect $i;
4463 next;
4464 } elsif ($test_type eq "config_bisect") {
4465 config_bisect $i;
4466 next;
4467 } elsif ($test_type eq "patchcheck") {
4468 patchcheck $i;
4469 next;
4470 } elsif ($test_type eq "make_min_config") {
4471 make_min_config $i;
4472 next;
4473 } elsif ($test_type eq "make_warnings_file") {
4474 $no_reboot = 1;
4475 make_warnings_file $i;
4476 next;
4477 }
4478
4479 if ($build_type ne "nobuild") {
4480 build $build_type or next;
4481 check_buildlog or next;
4482 }
4483
4484 if ($test_type eq "install") {
4485 get_version;
4486 install;
4487 success $i;
4488 next;
4489 }
4490
4491 if ($test_type ne "build") {
4492 my $failed = 0;
4493 start_monitor_and_install or $failed = 1;
4494
4495 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4496 do_run_test or $failed = 1;
4497 }
4498 end_monitor;
4499 if ($failed) {
4500 print_times;
4501 next;
4502 }
4503 }
4504
4505 print_times;
4506
4507 success $i;
4508}
4509
4510if (defined($final_post_ktest)) {
4511
4512 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4513 run_command $cp_final_post_ktest;
4514}
4515
4516if ($opt{"POWEROFF_ON_SUCCESS"}) {
4517 halt;
4518} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4519 reboot_to_good;
4520} elsif (defined($switch_to_good)) {
4521 # still need to get to the good kernel
4522 run_command $switch_to_good;
4523}
4524
4525doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4526
4527if ($email_when_finished) {
4528 send_email("KTEST: Your test has finished!",
4529 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4530}
4531
4532if (defined($opt{"LOG_FILE"})) {
4533 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4534 close LOG;
4535}
4536
4537exit 0;
4538
4539##
4540# The following are here to standardize tabs/spaces/etc across the most likely editors
4541###
4542
4543# Local Variables:
4544# mode: perl
4545# End:
4546# vim: softtabstop=4
1#!/usr/bin/perl -w
2#
3# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
4# Licensed under the terms of the GNU GPL License version 2
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
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 "STOP_AFTER_SUCCESS" => 10,
62 "STOP_AFTER_FAILURE" => 60,
63 "STOP_TEST_AFTER" => 600,
64 "MAX_MONITOR_WAIT" => 1800,
65 "GRUB_REBOOT" => "grub2-reboot",
66 "SYSLINUX" => "extlinux",
67 "SYSLINUX_PATH" => "/boot/extlinux",
68 "CONNECT_TIMEOUT" => 25,
69
70# required, and we will ask users if they don't have them but we keep the default
71# value something that is common.
72 "REBOOT_TYPE" => "grub",
73 "LOCALVERSION" => "-test",
74 "SSH_USER" => "root",
75 "BUILD_TARGET" => "arch/x86/boot/bzImage",
76 "TARGET_IMAGE" => "/boot/vmlinuz-test",
77
78 "LOG_FILE" => undef,
79 "IGNORE_UNUSED" => 0,
80);
81
82my $ktest_config = "ktest.conf";
83my $version;
84my $have_version = 0;
85my $machine;
86my $last_machine;
87my $ssh_user;
88my $tmpdir;
89my $builddir;
90my $outputdir;
91my $output_config;
92my $test_type;
93my $build_type;
94my $build_options;
95my $final_post_ktest;
96my $pre_ktest;
97my $post_ktest;
98my $pre_test;
99my $post_test;
100my $pre_build;
101my $post_build;
102my $pre_build_die;
103my $post_build_die;
104my $reboot_type;
105my $reboot_script;
106my $power_cycle;
107my $reboot;
108my $reboot_on_error;
109my $switch_to_good;
110my $switch_to_test;
111my $poweroff_on_error;
112my $reboot_on_success;
113my $die_on_failure;
114my $powercycle_after_reboot;
115my $poweroff_after_halt;
116my $max_monitor_wait;
117my $ssh_exec;
118my $scp_to_target;
119my $scp_to_target_install;
120my $power_off;
121my $grub_menu;
122my $last_grub_menu;
123my $grub_file;
124my $grub_number;
125my $grub_reboot;
126my $syslinux;
127my $syslinux_path;
128my $syslinux_label;
129my $target;
130my $make;
131my $pre_install;
132my $post_install;
133my $no_install;
134my $noclean;
135my $minconfig;
136my $start_minconfig;
137my $start_minconfig_defined;
138my $output_minconfig;
139my $minconfig_type;
140my $use_output_minconfig;
141my $warnings_file;
142my $ignore_config;
143my $ignore_errors;
144my $addconfig;
145my $in_bisect = 0;
146my $bisect_bad_commit = "";
147my $reverse_bisect;
148my $bisect_manual;
149my $bisect_skip;
150my $bisect_tries;
151my $config_bisect_good;
152my $bisect_ret_good;
153my $bisect_ret_bad;
154my $bisect_ret_skip;
155my $bisect_ret_abort;
156my $bisect_ret_default;
157my $in_patchcheck = 0;
158my $run_test;
159my $buildlog;
160my $testlog;
161my $dmesg;
162my $monitor_fp;
163my $monitor_pid;
164my $monitor_cnt = 0;
165my $sleep_time;
166my $bisect_sleep_time;
167my $patchcheck_sleep_time;
168my $ignore_warnings;
169my $store_failures;
170my $store_successes;
171my $test_name;
172my $timeout;
173my $connect_timeout;
174my $config_bisect_exec;
175my $booted_timeout;
176my $detect_triplefault;
177my $console;
178my $close_console_signal;
179my $reboot_success_line;
180my $success_line;
181my $stop_after_success;
182my $stop_after_failure;
183my $stop_test_after;
184my $build_target;
185my $target_image;
186my $checkout;
187my $localversion;
188my $iteration = 0;
189my $successes = 0;
190my $stty_orig;
191my $run_command_status = 0;
192
193my $bisect_good;
194my $bisect_bad;
195my $bisect_type;
196my $bisect_start;
197my $bisect_replay;
198my $bisect_files;
199my $bisect_reverse;
200my $bisect_check;
201
202my $config_bisect;
203my $config_bisect_type;
204my $config_bisect_check;
205
206my $patchcheck_type;
207my $patchcheck_start;
208my $patchcheck_cherry;
209my $patchcheck_end;
210
211my $build_time;
212my $install_time;
213my $reboot_time;
214my $test_time;
215
216my $pwd;
217my $dirname = $FindBin::Bin;
218
219my $mailto;
220my $mailer;
221my $mail_path;
222my $mail_command;
223my $email_on_error;
224my $email_when_finished;
225my $email_when_started;
226my $email_when_canceled;
227
228my $script_start_time = localtime();
229
230# set when a test is something other that just building or install
231# which would require more options.
232my $buildonly = 1;
233
234# tell build not to worry about warnings, even when WARNINGS_FILE is set
235my $warnings_ok = 0;
236
237# set when creating a new config
238my $newconfig = 0;
239
240my %entered_configs;
241my %config_help;
242my %variable;
243
244# force_config is the list of configs that we force enabled (or disabled)
245# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
246my %force_config;
247
248# do not force reboots on config problems
249my $no_reboot = 1;
250
251# reboot on success
252my $reboot_success = 0;
253
254my %option_map = (
255 "MAILTO" => \$mailto,
256 "MAILER" => \$mailer,
257 "MAIL_PATH" => \$mail_path,
258 "MAIL_COMMAND" => \$mail_command,
259 "EMAIL_ON_ERROR" => \$email_on_error,
260 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
261 "EMAIL_WHEN_STARTED" => \$email_when_started,
262 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
263 "MACHINE" => \$machine,
264 "SSH_USER" => \$ssh_user,
265 "TMP_DIR" => \$tmpdir,
266 "OUTPUT_DIR" => \$outputdir,
267 "BUILD_DIR" => \$builddir,
268 "TEST_TYPE" => \$test_type,
269 "PRE_KTEST" => \$pre_ktest,
270 "POST_KTEST" => \$post_ktest,
271 "PRE_TEST" => \$pre_test,
272 "POST_TEST" => \$post_test,
273 "BUILD_TYPE" => \$build_type,
274 "BUILD_OPTIONS" => \$build_options,
275 "PRE_BUILD" => \$pre_build,
276 "POST_BUILD" => \$post_build,
277 "PRE_BUILD_DIE" => \$pre_build_die,
278 "POST_BUILD_DIE" => \$post_build_die,
279 "POWER_CYCLE" => \$power_cycle,
280 "REBOOT" => \$reboot,
281 "BUILD_NOCLEAN" => \$noclean,
282 "MIN_CONFIG" => \$minconfig,
283 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
284 "START_MIN_CONFIG" => \$start_minconfig,
285 "MIN_CONFIG_TYPE" => \$minconfig_type,
286 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
287 "WARNINGS_FILE" => \$warnings_file,
288 "IGNORE_CONFIG" => \$ignore_config,
289 "TEST" => \$run_test,
290 "ADD_CONFIG" => \$addconfig,
291 "REBOOT_TYPE" => \$reboot_type,
292 "GRUB_MENU" => \$grub_menu,
293 "GRUB_FILE" => \$grub_file,
294 "GRUB_REBOOT" => \$grub_reboot,
295 "SYSLINUX" => \$syslinux,
296 "SYSLINUX_PATH" => \$syslinux_path,
297 "SYSLINUX_LABEL" => \$syslinux_label,
298 "PRE_INSTALL" => \$pre_install,
299 "POST_INSTALL" => \$post_install,
300 "NO_INSTALL" => \$no_install,
301 "REBOOT_SCRIPT" => \$reboot_script,
302 "REBOOT_ON_ERROR" => \$reboot_on_error,
303 "SWITCH_TO_GOOD" => \$switch_to_good,
304 "SWITCH_TO_TEST" => \$switch_to_test,
305 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
306 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
307 "DIE_ON_FAILURE" => \$die_on_failure,
308 "POWER_OFF" => \$power_off,
309 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
310 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
311 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
312 "SLEEP_TIME" => \$sleep_time,
313 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
314 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
315 "IGNORE_WARNINGS" => \$ignore_warnings,
316 "IGNORE_ERRORS" => \$ignore_errors,
317 "BISECT_MANUAL" => \$bisect_manual,
318 "BISECT_SKIP" => \$bisect_skip,
319 "BISECT_TRIES" => \$bisect_tries,
320 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
321 "BISECT_RET_GOOD" => \$bisect_ret_good,
322 "BISECT_RET_BAD" => \$bisect_ret_bad,
323 "BISECT_RET_SKIP" => \$bisect_ret_skip,
324 "BISECT_RET_ABORT" => \$bisect_ret_abort,
325 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
326 "STORE_FAILURES" => \$store_failures,
327 "STORE_SUCCESSES" => \$store_successes,
328 "TEST_NAME" => \$test_name,
329 "TIMEOUT" => \$timeout,
330 "CONNECT_TIMEOUT" => \$connect_timeout,
331 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
332 "BOOTED_TIMEOUT" => \$booted_timeout,
333 "CONSOLE" => \$console,
334 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
335 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
336 "SUCCESS_LINE" => \$success_line,
337 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
338 "STOP_AFTER_SUCCESS" => \$stop_after_success,
339 "STOP_AFTER_FAILURE" => \$stop_after_failure,
340 "STOP_TEST_AFTER" => \$stop_test_after,
341 "BUILD_TARGET" => \$build_target,
342 "SSH_EXEC" => \$ssh_exec,
343 "SCP_TO_TARGET" => \$scp_to_target,
344 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
345 "CHECKOUT" => \$checkout,
346 "TARGET_IMAGE" => \$target_image,
347 "LOCALVERSION" => \$localversion,
348
349 "BISECT_GOOD" => \$bisect_good,
350 "BISECT_BAD" => \$bisect_bad,
351 "BISECT_TYPE" => \$bisect_type,
352 "BISECT_START" => \$bisect_start,
353 "BISECT_REPLAY" => \$bisect_replay,
354 "BISECT_FILES" => \$bisect_files,
355 "BISECT_REVERSE" => \$bisect_reverse,
356 "BISECT_CHECK" => \$bisect_check,
357
358 "CONFIG_BISECT" => \$config_bisect,
359 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
360 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
361
362 "PATCHCHECK_TYPE" => \$patchcheck_type,
363 "PATCHCHECK_START" => \$patchcheck_start,
364 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
365 "PATCHCHECK_END" => \$patchcheck_end,
366);
367
368# Options may be used by other options, record them.
369my %used_options;
370
371# default variables that can be used
372chomp ($variable{"PWD"} = `pwd`);
373$pwd = $variable{"PWD"};
374
375$config_help{"MACHINE"} = << "EOF"
376 The machine hostname that you will test.
377 For build only tests, it is still needed to differentiate log files.
378EOF
379 ;
380$config_help{"SSH_USER"} = << "EOF"
381 The box is expected to have ssh on normal bootup, provide the user
382 (most likely root, since you need privileged operations)
383EOF
384 ;
385$config_help{"BUILD_DIR"} = << "EOF"
386 The directory that contains the Linux source code (full path).
387 You can use \${PWD} that will be the path where ktest.pl is run, or use
388 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
389EOF
390 ;
391$config_help{"OUTPUT_DIR"} = << "EOF"
392 The directory that the objects will be built (full path).
393 (can not be same as BUILD_DIR)
394 You can use \${PWD} that will be the path where ktest.pl is run, or use
395 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
396EOF
397 ;
398$config_help{"BUILD_TARGET"} = << "EOF"
399 The location of the compiled file to copy to the target.
400 (relative to OUTPUT_DIR)
401EOF
402 ;
403$config_help{"BUILD_OPTIONS"} = << "EOF"
404 Options to add to \"make\" when building.
405 i.e. -j20
406EOF
407 ;
408$config_help{"TARGET_IMAGE"} = << "EOF"
409 The place to put your image on the test machine.
410EOF
411 ;
412$config_help{"POWER_CYCLE"} = << "EOF"
413 A script or command to reboot the box.
414
415 Here is a digital loggers power switch example
416 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
417
418 Here is an example to reboot a virtual box on the current host
419 with the name "Guest".
420 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
421EOF
422 ;
423$config_help{"CONSOLE"} = << "EOF"
424 The script or command that reads the console
425
426 If you use ttywatch server, something like the following would work.
427CONSOLE = nc -d localhost 3001
428
429 For a virtual machine with guest name "Guest".
430CONSOLE = virsh console Guest
431EOF
432 ;
433$config_help{"LOCALVERSION"} = << "EOF"
434 Required version ending to differentiate the test
435 from other linux builds on the system.
436EOF
437 ;
438$config_help{"REBOOT_TYPE"} = << "EOF"
439 Way to reboot the box to the test kernel.
440 Only valid options so far are "grub", "grub2", "syslinux", and "script".
441
442 If you specify grub, it will assume grub version 1
443 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
444 and select that target to reboot to the kernel. If this is not
445 your setup, then specify "script" and have a command or script
446 specified in REBOOT_SCRIPT to boot to the target.
447
448 The entry in /boot/grub/menu.lst must be entered in manually.
449 The test will not modify that file.
450
451 If you specify grub2, then you also need to specify both \$GRUB_MENU
452 and \$GRUB_FILE.
453
454 If you specify syslinux, then you may use SYSLINUX to define the syslinux
455 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
456 the syslinux install (defaults to /boot/extlinux). But you have to specify
457 SYSLINUX_LABEL to define the label to boot to for the test kernel.
458EOF
459 ;
460$config_help{"GRUB_MENU"} = << "EOF"
461 The grub title name for the test kernel to boot
462 (Only mandatory if REBOOT_TYPE = grub or grub2)
463
464 Note, ktest.pl will not update the grub menu.lst, you need to
465 manually add an option for the test. ktest.pl will search
466 the grub menu.lst for this option to find what kernel to
467 reboot into.
468
469 For example, if in the /boot/grub/menu.lst the test kernel title has:
470 title Test Kernel
471 kernel vmlinuz-test
472 GRUB_MENU = Test Kernel
473
474 For grub2, a search of \$GRUB_FILE is performed for the lines
475 that begin with "menuentry". It will not detect submenus. The
476 menu must be a non-nested menu. Add the quotes used in the menu
477 to guarantee your selection, as the first menuentry with the content
478 of \$GRUB_MENU that is found will be used.
479EOF
480 ;
481$config_help{"GRUB_FILE"} = << "EOF"
482 If grub2 is used, the full path for the grub.cfg file is placed
483 here. Use something like /boot/grub2/grub.cfg to search.
484EOF
485 ;
486$config_help{"SYSLINUX_LABEL"} = << "EOF"
487 If syslinux is used, the label that boots the target kernel must
488 be specified with SYSLINUX_LABEL.
489EOF
490 ;
491$config_help{"REBOOT_SCRIPT"} = << "EOF"
492 A script to reboot the target into the test kernel
493 (Only mandatory if REBOOT_TYPE = script)
494EOF
495 ;
496
497sub _logit {
498 if (defined($opt{"LOG_FILE"})) {
499 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
500 print OUT @_;
501 close(OUT);
502 }
503}
504
505sub logit {
506 if (defined($opt{"LOG_FILE"})) {
507 _logit @_;
508 } else {
509 print @_;
510 }
511}
512
513sub doprint {
514 print @_;
515 _logit @_;
516}
517
518sub read_prompt {
519 my ($cancel, $prompt) = @_;
520
521 my $ans;
522
523 for (;;) {
524 if ($cancel) {
525 print "$prompt [y/n/C] ";
526 } else {
527 print "$prompt [Y/n] ";
528 }
529 $ans = <STDIN>;
530 chomp $ans;
531 if ($ans =~ /^\s*$/) {
532 if ($cancel) {
533 $ans = "c";
534 } else {
535 $ans = "y";
536 }
537 }
538 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
539 if ($cancel) {
540 last if ($ans =~ /^c$/i);
541 print "Please answer either 'y', 'n' or 'c'.\n";
542 } else {
543 print "Please answer either 'y' or 'n'.\n";
544 }
545 }
546 if ($ans =~ /^c/i) {
547 exit;
548 }
549 if ($ans !~ /^y$/i) {
550 return 0;
551 }
552 return 1;
553}
554
555sub read_yn {
556 my ($prompt) = @_;
557
558 return read_prompt 0, $prompt;
559}
560
561sub read_ync {
562 my ($prompt) = @_;
563
564 return read_prompt 1, $prompt;
565}
566
567sub get_mandatory_config {
568 my ($config) = @_;
569 my $ans;
570
571 return if (defined($opt{$config}));
572
573 if (defined($config_help{$config})) {
574 print "\n";
575 print $config_help{$config};
576 }
577
578 for (;;) {
579 print "$config = ";
580 if (defined($default{$config}) && length($default{$config})) {
581 print "\[$default{$config}\] ";
582 }
583 $ans = <STDIN>;
584 $ans =~ s/^\s*(.*\S)\s*$/$1/;
585 if ($ans =~ /^\s*$/) {
586 if ($default{$config}) {
587 $ans = $default{$config};
588 } else {
589 print "Your answer can not be blank\n";
590 next;
591 }
592 }
593 $entered_configs{$config} = ${ans};
594 last;
595 }
596}
597
598sub show_time {
599 my ($time) = @_;
600
601 my $hours = 0;
602 my $minutes = 0;
603
604 if ($time > 3600) {
605 $hours = int($time / 3600);
606 $time -= $hours * 3600;
607 }
608 if ($time > 60) {
609 $minutes = int($time / 60);
610 $time -= $minutes * 60;
611 }
612
613 if ($hours > 0) {
614 doprint "$hours hour";
615 doprint "s" if ($hours > 1);
616 doprint " ";
617 }
618
619 if ($minutes > 0) {
620 doprint "$minutes minute";
621 doprint "s" if ($minutes > 1);
622 doprint " ";
623 }
624
625 doprint "$time second";
626 doprint "s" if ($time != 1);
627}
628
629sub print_times {
630 doprint "\n";
631 if ($build_time) {
632 doprint "Build time: ";
633 show_time($build_time);
634 doprint "\n";
635 }
636 if ($install_time) {
637 doprint "Install time: ";
638 show_time($install_time);
639 doprint "\n";
640 }
641 if ($reboot_time) {
642 doprint "Reboot time: ";
643 show_time($reboot_time);
644 doprint "\n";
645 }
646 if ($test_time) {
647 doprint "Test time: ";
648 show_time($test_time);
649 doprint "\n";
650 }
651 # reset for iterations like bisect
652 $build_time = 0;
653 $install_time = 0;
654 $reboot_time = 0;
655 $test_time = 0;
656}
657
658sub get_mandatory_configs {
659 get_mandatory_config("MACHINE");
660 get_mandatory_config("BUILD_DIR");
661 get_mandatory_config("OUTPUT_DIR");
662
663 if ($newconfig) {
664 get_mandatory_config("BUILD_OPTIONS");
665 }
666
667 # options required for other than just building a kernel
668 if (!$buildonly) {
669 get_mandatory_config("POWER_CYCLE");
670 get_mandatory_config("CONSOLE");
671 }
672
673 # options required for install and more
674 if ($buildonly != 1) {
675 get_mandatory_config("SSH_USER");
676 get_mandatory_config("BUILD_TARGET");
677 get_mandatory_config("TARGET_IMAGE");
678 }
679
680 get_mandatory_config("LOCALVERSION");
681
682 return if ($buildonly);
683
684 my $rtype = $opt{"REBOOT_TYPE"};
685
686 if (!defined($rtype)) {
687 if (!defined($opt{"GRUB_MENU"})) {
688 get_mandatory_config("REBOOT_TYPE");
689 $rtype = $entered_configs{"REBOOT_TYPE"};
690 } else {
691 $rtype = "grub";
692 }
693 }
694
695 if ($rtype eq "grub") {
696 get_mandatory_config("GRUB_MENU");
697 }
698
699 if ($rtype eq "grub2") {
700 get_mandatory_config("GRUB_MENU");
701 get_mandatory_config("GRUB_FILE");
702 }
703
704 if ($rtype eq "syslinux") {
705 get_mandatory_config("SYSLINUX_LABEL");
706 }
707}
708
709sub process_variables {
710 my ($value, $remove_undef) = @_;
711 my $retval = "";
712
713 # We want to check for '\', and it is just easier
714 # to check the previous characet of '$' and not need
715 # to worry if '$' is the first character. By adding
716 # a space to $value, we can just check [^\\]\$ and
717 # it will still work.
718 $value = " $value";
719
720 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
721 my $begin = $1;
722 my $var = $2;
723 my $end = $3;
724 # append beginning of value to retval
725 $retval = "$retval$begin";
726 if (defined($variable{$var})) {
727 $retval = "$retval$variable{$var}";
728 } elsif (defined($remove_undef) && $remove_undef) {
729 # for if statements, any variable that is not defined,
730 # we simple convert to 0
731 $retval = "${retval}0";
732 } else {
733 # put back the origin piece.
734 $retval = "$retval\$\{$var\}";
735 # This could be an option that is used later, save
736 # it so we don't warn if this option is not one of
737 # ktests options.
738 $used_options{$var} = 1;
739 }
740 $value = $end;
741 }
742 $retval = "$retval$value";
743
744 # remove the space added in the beginning
745 $retval =~ s/ //;
746
747 return "$retval"
748}
749
750sub set_value {
751 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
752
753 my $prvalue = process_variables($rvalue);
754
755 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
756 $prvalue !~ /^(config_|)bisect$/ &&
757 $prvalue !~ /^build$/ &&
758 $buildonly) {
759
760 # Note if a test is something other than build, then we
761 # will need other mandatory options.
762 if ($prvalue ne "install") {
763 $buildonly = 0;
764 } else {
765 # install still limits some mandatory options.
766 $buildonly = 2;
767 }
768 }
769
770 if (defined($opt{$lvalue})) {
771 if (!$override || defined(${$overrides}{$lvalue})) {
772 my $extra = "";
773 if ($override) {
774 $extra = "In the same override section!\n";
775 }
776 die "$name: $.: Option $lvalue defined more than once!\n$extra";
777 }
778 ${$overrides}{$lvalue} = $prvalue;
779 }
780
781 $opt{$lvalue} = $prvalue;
782}
783
784sub set_eval {
785 my ($lvalue, $rvalue, $name) = @_;
786
787 my $prvalue = process_variables($rvalue);
788 my $arr;
789
790 if (defined($evals{$lvalue})) {
791 $arr = $evals{$lvalue};
792 } else {
793 $arr = [];
794 $evals{$lvalue} = $arr;
795 }
796
797 push @{$arr}, $rvalue;
798}
799
800sub set_variable {
801 my ($lvalue, $rvalue) = @_;
802
803 if ($rvalue =~ /^\s*$/) {
804 delete $variable{$lvalue};
805 } else {
806 $rvalue = process_variables($rvalue);
807 $variable{$lvalue} = $rvalue;
808 }
809}
810
811sub process_compare {
812 my ($lval, $cmp, $rval) = @_;
813
814 # remove whitespace
815
816 $lval =~ s/^\s*//;
817 $lval =~ s/\s*$//;
818
819 $rval =~ s/^\s*//;
820 $rval =~ s/\s*$//;
821
822 if ($cmp eq "==") {
823 return $lval eq $rval;
824 } elsif ($cmp eq "!=") {
825 return $lval ne $rval;
826 } elsif ($cmp eq "=~") {
827 return $lval =~ m/$rval/;
828 } elsif ($cmp eq "!~") {
829 return $lval !~ m/$rval/;
830 }
831
832 my $statement = "$lval $cmp $rval";
833 my $ret = eval $statement;
834
835 # $@ stores error of eval
836 if ($@) {
837 return -1;
838 }
839
840 return $ret;
841}
842
843sub value_defined {
844 my ($val) = @_;
845
846 return defined($variable{$2}) ||
847 defined($opt{$2});
848}
849
850my $d = 0;
851sub process_expression {
852 my ($name, $val) = @_;
853
854 my $c = $d++;
855
856 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
857 my $express = $1;
858
859 if (process_expression($name, $express)) {
860 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
861 } else {
862 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
863 }
864 }
865
866 $d--;
867 my $OR = "\\|\\|";
868 my $AND = "\\&\\&";
869
870 while ($val =~ s/^(.*?)($OR|$AND)//) {
871 my $express = $1;
872 my $op = $2;
873
874 if (process_expression($name, $express)) {
875 if ($op eq "||") {
876 return 1;
877 }
878 } else {
879 if ($op eq "&&") {
880 return 0;
881 }
882 }
883 }
884
885 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
886 my $ret = process_compare($1, $2, $3);
887 if ($ret < 0) {
888 die "$name: $.: Unable to process comparison\n";
889 }
890 return $ret;
891 }
892
893 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
894 if (defined $1) {
895 return !value_defined($2);
896 } else {
897 return value_defined($2);
898 }
899 }
900
901 if ($val =~ /^\s*0\s*$/) {
902 return 0;
903 } elsif ($val =~ /^\s*\d+\s*$/) {
904 return 1;
905 }
906
907 die ("$name: $.: Undefined content $val in if statement\n");
908}
909
910sub process_if {
911 my ($name, $value) = @_;
912
913 # Convert variables and replace undefined ones with 0
914 my $val = process_variables($value, 1);
915 my $ret = process_expression $name, $val;
916
917 return $ret;
918}
919
920sub __read_config {
921 my ($config, $current_test_num) = @_;
922
923 my $in;
924 open($in, $config) || die "can't read file $config";
925
926 my $name = $config;
927 $name =~ s,.*/(.*),$1,;
928
929 my $test_num = $$current_test_num;
930 my $default = 1;
931 my $repeat = 1;
932 my $num_tests_set = 0;
933 my $skip = 0;
934 my $rest;
935 my $line;
936 my $test_case = 0;
937 my $if = 0;
938 my $if_set = 0;
939 my $override = 0;
940
941 my %overrides;
942
943 while (<$in>) {
944
945 # ignore blank lines and comments
946 next if (/^\s*$/ || /\s*\#/);
947
948 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
949
950 my $type = $1;
951 $rest = $2;
952 $line = $2;
953
954 my $old_test_num;
955 my $old_repeat;
956 $override = 0;
957
958 if ($type eq "TEST_START") {
959
960 if ($num_tests_set) {
961 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
962 }
963
964 $old_test_num = $test_num;
965 $old_repeat = $repeat;
966
967 $test_num += $repeat;
968 $default = 0;
969 $repeat = 1;
970 } else {
971 $default = 1;
972 }
973
974 # If SKIP is anywhere in the line, the command will be skipped
975 if ($rest =~ s/\s+SKIP\b//) {
976 $skip = 1;
977 } else {
978 $test_case = 1;
979 $skip = 0;
980 }
981
982 if ($rest =~ s/\sELSE\b//) {
983 if (!$if) {
984 die "$name: $.: ELSE found with out matching IF section\n$_";
985 }
986 $if = 0;
987
988 if ($if_set) {
989 $skip = 1;
990 } else {
991 $skip = 0;
992 }
993 }
994
995 if ($rest =~ s/\sIF\s+(.*)//) {
996 if (process_if($name, $1)) {
997 $if_set = 1;
998 } else {
999 $skip = 1;
1000 }
1001 $if = 1;
1002 } else {
1003 $if = 0;
1004 $if_set = 0;
1005 }
1006
1007 if (!$skip) {
1008 if ($type eq "TEST_START") {
1009 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1010 $repeat = $1;
1011 $repeat_tests{"$test_num"} = $repeat;
1012 }
1013 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1014 # DEFAULT only
1015 $override = 1;
1016 # Clear previous overrides
1017 %overrides = ();
1018 }
1019 }
1020
1021 if (!$skip && $rest !~ /^\s*$/) {
1022 die "$name: $.: Gargbage found after $type\n$_";
1023 }
1024
1025 if ($skip && $type eq "TEST_START") {
1026 $test_num = $old_test_num;
1027 $repeat = $old_repeat;
1028 }
1029
1030 } elsif (/^\s*ELSE\b(.*)$/) {
1031 if (!$if) {
1032 die "$name: $.: ELSE found with out matching IF section\n$_";
1033 }
1034 $rest = $1;
1035 if ($if_set) {
1036 $skip = 1;
1037 $rest = "";
1038 } else {
1039 $skip = 0;
1040
1041 if ($rest =~ /\sIF\s+(.*)/) {
1042 # May be a ELSE IF section.
1043 if (process_if($name, $1)) {
1044 $if_set = 1;
1045 } else {
1046 $skip = 1;
1047 }
1048 $rest = "";
1049 } else {
1050 $if = 0;
1051 }
1052 }
1053
1054 if ($rest !~ /^\s*$/) {
1055 die "$name: $.: Gargbage found after DEFAULTS\n$_";
1056 }
1057
1058 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1059
1060 next if ($skip);
1061
1062 if (!$default) {
1063 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1064 }
1065
1066 my $file = process_variables($1);
1067
1068 if ($file !~ m,^/,) {
1069 # check the path of the config file first
1070 if ($config =~ m,(.*)/,) {
1071 if (-f "$1/$file") {
1072 $file = "$1/$file";
1073 }
1074 }
1075 }
1076
1077 if ( ! -r $file ) {
1078 die "$name: $.: Can't read file $file\n$_";
1079 }
1080
1081 if (__read_config($file, \$test_num)) {
1082 $test_case = 1;
1083 }
1084
1085 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1086
1087 next if ($skip);
1088
1089 my $lvalue = $1;
1090 my $rvalue = $2;
1091
1092 if ($default || $lvalue =~ /\[\d+\]$/) {
1093 set_eval($lvalue, $rvalue, $name);
1094 } else {
1095 my $val = "$lvalue\[$test_num\]";
1096 set_eval($val, $rvalue, $name);
1097 }
1098
1099 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1100
1101 next if ($skip);
1102
1103 my $lvalue = $1;
1104 my $rvalue = $2;
1105
1106 if (!$default &&
1107 ($lvalue eq "NUM_TESTS" ||
1108 $lvalue eq "LOG_FILE" ||
1109 $lvalue eq "CLEAR_LOG")) {
1110 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1111 }
1112
1113 if ($lvalue eq "NUM_TESTS") {
1114 if ($test_num) {
1115 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1116 }
1117 if (!$default) {
1118 die "$name: $.: NUM_TESTS must be set in default section\n";
1119 }
1120 $num_tests_set = 1;
1121 }
1122
1123 if ($default || $lvalue =~ /\[\d+\]$/) {
1124 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1125 } else {
1126 my $val = "$lvalue\[$test_num\]";
1127 set_value($val, $rvalue, $override, \%overrides, $name);
1128
1129 if ($repeat > 1) {
1130 $repeats{$val} = $repeat;
1131 }
1132 }
1133 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1134 next if ($skip);
1135
1136 my $lvalue = $1;
1137 my $rvalue = $2;
1138
1139 # process config variables.
1140 # Config variables are only active while reading the
1141 # config and can be defined anywhere. They also ignore
1142 # TEST_START and DEFAULTS, but are skipped if they are in
1143 # on of these sections that have SKIP defined.
1144 # The save variable can be
1145 # defined multiple times and the new one simply overrides
1146 # the prevous one.
1147 set_variable($lvalue, $rvalue);
1148
1149 } else {
1150 die "$name: $.: Garbage found in config\n$_";
1151 }
1152 }
1153
1154 if ($test_num) {
1155 $test_num += $repeat - 1;
1156 $opt{"NUM_TESTS"} = $test_num;
1157 }
1158
1159 close($in);
1160
1161 $$current_test_num = $test_num;
1162
1163 return $test_case;
1164}
1165
1166sub get_test_case {
1167 print "What test case would you like to run?\n";
1168 print " (build, install or boot)\n";
1169 print " Other tests are available but require editing ktest.conf\n";
1170 print " (see tools/testing/ktest/sample.conf)\n";
1171 my $ans = <STDIN>;
1172 chomp $ans;
1173 $default{"TEST_TYPE"} = $ans;
1174}
1175
1176sub read_config {
1177 my ($config) = @_;
1178
1179 my $test_case;
1180 my $test_num = 0;
1181
1182 $test_case = __read_config $config, \$test_num;
1183
1184 # make sure we have all mandatory configs
1185 get_mandatory_configs;
1186
1187 # was a test specified?
1188 if (!$test_case) {
1189 print "No test case specified.\n";
1190 get_test_case;
1191 }
1192
1193 # set any defaults
1194
1195 foreach my $default (keys %default) {
1196 if (!defined($opt{$default})) {
1197 $opt{$default} = $default{$default};
1198 }
1199 }
1200
1201 if ($opt{"IGNORE_UNUSED"} == 1) {
1202 return;
1203 }
1204
1205 my %not_used;
1206
1207 # check if there are any stragglers (typos?)
1208 foreach my $option (keys %opt) {
1209 my $op = $option;
1210 # remove per test labels.
1211 $op =~ s/\[.*\]//;
1212 if (!exists($option_map{$op}) &&
1213 !exists($default{$op}) &&
1214 !exists($used_options{$op})) {
1215 $not_used{$op} = 1;
1216 }
1217 }
1218
1219 if (%not_used) {
1220 my $s = "s are";
1221 $s = " is" if (keys %not_used == 1);
1222 print "The following option$s not used; could be a typo:\n";
1223 foreach my $option (keys %not_used) {
1224 print "$option\n";
1225 }
1226 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1227 if (!read_yn "Do you want to continue?") {
1228 exit -1;
1229 }
1230 }
1231}
1232
1233sub __eval_option {
1234 my ($name, $option, $i) = @_;
1235
1236 # Add space to evaluate the character before $
1237 $option = " $option";
1238 my $retval = "";
1239 my $repeated = 0;
1240 my $parent = 0;
1241
1242 foreach my $test (keys %repeat_tests) {
1243 if ($i >= $test &&
1244 $i < $test + $repeat_tests{$test}) {
1245
1246 $repeated = 1;
1247 $parent = $test;
1248 last;
1249 }
1250 }
1251
1252 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1253 my $start = $1;
1254 my $var = $2;
1255 my $end = $3;
1256
1257 # Append beginning of line
1258 $retval = "$retval$start";
1259
1260 # If the iteration option OPT[$i] exists, then use that.
1261 # otherwise see if the default OPT (without [$i]) exists.
1262
1263 my $o = "$var\[$i\]";
1264 my $parento = "$var\[$parent\]";
1265
1266 # If a variable contains itself, use the default var
1267 if (($var eq $name) && defined($opt{$var})) {
1268 $o = $opt{$var};
1269 $retval = "$retval$o";
1270 } elsif (defined($opt{$o})) {
1271 $o = $opt{$o};
1272 $retval = "$retval$o";
1273 } elsif ($repeated && defined($opt{$parento})) {
1274 $o = $opt{$parento};
1275 $retval = "$retval$o";
1276 } elsif (defined($opt{$var})) {
1277 $o = $opt{$var};
1278 $retval = "$retval$o";
1279 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1280 # special option KERNEL_VERSION uses kernel version
1281 get_version();
1282 $retval = "$retval$version";
1283 } else {
1284 $retval = "$retval\$\{$var\}";
1285 }
1286
1287 $option = $end;
1288 }
1289
1290 $retval = "$retval$option";
1291
1292 $retval =~ s/^ //;
1293
1294 return $retval;
1295}
1296
1297sub process_evals {
1298 my ($name, $option, $i) = @_;
1299
1300 my $option_name = "$name\[$i\]";
1301 my $ev;
1302
1303 my $old_option = $option;
1304
1305 if (defined($evals{$option_name})) {
1306 $ev = $evals{$option_name};
1307 } elsif (defined($evals{$name})) {
1308 $ev = $evals{$name};
1309 } else {
1310 return $option;
1311 }
1312
1313 for my $e (@{$ev}) {
1314 eval "\$option =~ $e";
1315 }
1316
1317 if ($option ne $old_option) {
1318 doprint("$name changed from '$old_option' to '$option'\n");
1319 }
1320
1321 return $option;
1322}
1323
1324sub eval_option {
1325 my ($name, $option, $i) = @_;
1326
1327 my $prev = "";
1328
1329 # Since an option can evaluate to another option,
1330 # keep iterating until we do not evaluate any more
1331 # options.
1332 my $r = 0;
1333 while ($prev ne $option) {
1334 # Check for recursive evaluations.
1335 # 100 deep should be more than enough.
1336 if ($r++ > 100) {
1337 die "Over 100 evaluations accurred with $option\n" .
1338 "Check for recursive variables\n";
1339 }
1340 $prev = $option;
1341 $option = __eval_option($name, $option, $i);
1342 }
1343
1344 $option = process_evals($name, $option, $i);
1345
1346 return $option;
1347}
1348
1349sub run_command;
1350sub start_monitor;
1351sub end_monitor;
1352sub wait_for_monitor;
1353
1354sub reboot {
1355 my ($time) = @_;
1356 my $powercycle = 0;
1357
1358 # test if the machine can be connected to within a few seconds
1359 my $stat = run_ssh("echo check machine status", $connect_timeout);
1360 if (!$stat) {
1361 doprint("power cycle\n");
1362 $powercycle = 1;
1363 }
1364
1365 if ($powercycle) {
1366 run_command "$power_cycle";
1367
1368 start_monitor;
1369 # flush out current monitor
1370 # May contain the reboot success line
1371 wait_for_monitor 1;
1372
1373 } else {
1374 # Make sure everything has been written to disk
1375 run_ssh("sync");
1376
1377 if (defined($time)) {
1378 start_monitor;
1379 # flush out current monitor
1380 # May contain the reboot success line
1381 wait_for_monitor 1;
1382 }
1383
1384 # try to reboot normally
1385 if (run_command $reboot) {
1386 if (defined($powercycle_after_reboot)) {
1387 sleep $powercycle_after_reboot;
1388 run_command "$power_cycle";
1389 }
1390 } else {
1391 # nope? power cycle it.
1392 run_command "$power_cycle";
1393 }
1394 }
1395
1396 if (defined($time)) {
1397
1398 # We only want to get to the new kernel, don't fail
1399 # if we stumble over a call trace.
1400 my $save_ignore_errors = $ignore_errors;
1401 $ignore_errors = 1;
1402
1403 # Look for the good kernel to boot
1404 if (wait_for_monitor($time, "Linux version")) {
1405 # reboot got stuck?
1406 doprint "Reboot did not finish. Forcing power cycle\n";
1407 run_command "$power_cycle";
1408 }
1409
1410 $ignore_errors = $save_ignore_errors;
1411
1412 # Still need to wait for the reboot to finish
1413 wait_for_monitor($time, $reboot_success_line);
1414
1415 end_monitor;
1416 }
1417}
1418
1419sub reboot_to_good {
1420 my ($time) = @_;
1421
1422 if (defined($switch_to_good)) {
1423 run_command $switch_to_good;
1424 }
1425
1426 reboot $time;
1427}
1428
1429sub do_not_reboot {
1430 my $i = $iteration;
1431
1432 return $test_type eq "build" || $no_reboot ||
1433 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1434 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1435 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1436}
1437
1438my $in_die = 0;
1439
1440sub dodie {
1441
1442 # avoid recusion
1443 return if ($in_die);
1444 $in_die = 1;
1445
1446 doprint "CRITICAL FAILURE... ", @_, "\n";
1447
1448 my $i = $iteration;
1449
1450 if ($reboot_on_error && !do_not_reboot) {
1451
1452 doprint "REBOOTING\n";
1453 reboot_to_good;
1454
1455 } elsif ($poweroff_on_error && defined($power_off)) {
1456 doprint "POWERING OFF\n";
1457 `$power_off`;
1458 }
1459
1460 if (defined($opt{"LOG_FILE"})) {
1461 print " See $opt{LOG_FILE} for more info.\n";
1462 }
1463
1464 if ($email_on_error) {
1465 send_email("KTEST: critical failure for your [$test_type] test",
1466 "Your test started at $script_start_time has failed with:\n@_\n");
1467 }
1468
1469 if ($monitor_cnt) {
1470 # restore terminal settings
1471 system("stty $stty_orig");
1472 }
1473
1474 if (defined($post_test)) {
1475 run_command $post_test;
1476 }
1477
1478 die @_, "\n";
1479}
1480
1481sub create_pty {
1482 my ($ptm, $pts) = @_;
1483 my $tmp;
1484 my $TIOCSPTLCK = 0x40045431;
1485 my $TIOCGPTN = 0x80045430;
1486
1487 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1488 dodie "Cant open /dev/ptmx";
1489
1490 # unlockpt()
1491 $tmp = pack("i", 0);
1492 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1493 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1494
1495 # ptsname()
1496 ioctl($ptm, $TIOCGPTN, $tmp) or
1497 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1498 $tmp = unpack("i", $tmp);
1499
1500 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1501 dodie "Can't open /dev/pts/$tmp";
1502}
1503
1504sub exec_console {
1505 my ($ptm, $pts) = @_;
1506
1507 close($ptm);
1508
1509 close(\*STDIN);
1510 close(\*STDOUT);
1511 close(\*STDERR);
1512
1513 open(\*STDIN, '<&', $pts);
1514 open(\*STDOUT, '>&', $pts);
1515 open(\*STDERR, '>&', $pts);
1516
1517 close($pts);
1518
1519 exec $console or
1520 dodie "Can't open console $console";
1521}
1522
1523sub open_console {
1524 my ($ptm) = @_;
1525 my $pts = \*PTSFD;
1526 my $pid;
1527
1528 # save terminal settings
1529 $stty_orig = `stty -g`;
1530
1531 # place terminal in cbreak mode so that stdin can be read one character at
1532 # a time without having to wait for a newline
1533 system("stty -icanon -echo -icrnl");
1534
1535 create_pty($ptm, $pts);
1536
1537 $pid = fork;
1538
1539 if (!$pid) {
1540 # child
1541 exec_console($ptm, $pts)
1542 }
1543
1544 # parent
1545 close($pts);
1546
1547 return $pid;
1548
1549 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1550}
1551
1552sub close_console {
1553 my ($fp, $pid) = @_;
1554
1555 doprint "kill child process $pid\n";
1556 kill $close_console_signal, $pid;
1557
1558 doprint "wait for child process $pid to exit\n";
1559 waitpid($pid, 0);
1560
1561 print "closing!\n";
1562 close($fp);
1563
1564 # restore terminal settings
1565 system("stty $stty_orig");
1566}
1567
1568sub start_monitor {
1569 if ($monitor_cnt++) {
1570 return;
1571 }
1572 $monitor_fp = \*MONFD;
1573 $monitor_pid = open_console $monitor_fp;
1574
1575 return;
1576
1577 open(MONFD, "Stop perl from warning about single use of MONFD");
1578}
1579
1580sub end_monitor {
1581 return if (!defined $console);
1582 if (--$monitor_cnt) {
1583 return;
1584 }
1585 close_console($monitor_fp, $monitor_pid);
1586}
1587
1588sub wait_for_monitor {
1589 my ($time, $stop) = @_;
1590 my $full_line = "";
1591 my $line;
1592 my $booted = 0;
1593 my $start_time = time;
1594 my $skip_call_trace = 0;
1595 my $bug = 0;
1596 my $bug_ignored = 0;
1597 my $now;
1598
1599 doprint "** Wait for monitor to settle down **\n";
1600
1601 # read the monitor and wait for the system to calm down
1602 while (!$booted) {
1603 $line = wait_for_input($monitor_fp, $time);
1604 last if (!defined($line));
1605 print "$line";
1606 $full_line .= $line;
1607
1608 if (defined($stop) && $full_line =~ /$stop/) {
1609 doprint "wait for monitor detected $stop\n";
1610 $booted = 1;
1611 }
1612
1613 if ($full_line =~ /\[ backtrace testing \]/) {
1614 $skip_call_trace = 1;
1615 }
1616
1617 if ($full_line =~ /call trace:/i) {
1618 if (!$bug && !$skip_call_trace) {
1619 if ($ignore_errors) {
1620 $bug_ignored = 1;
1621 } else {
1622 $bug = 1;
1623 }
1624 }
1625 }
1626
1627 if ($full_line =~ /\[ end of backtrace testing \]/) {
1628 $skip_call_trace = 0;
1629 }
1630
1631 if ($full_line =~ /Kernel panic -/) {
1632 $bug = 1;
1633 }
1634
1635 if ($line =~ /\n/) {
1636 $full_line = "";
1637 }
1638 $now = time;
1639 if ($now - $start_time >= $max_monitor_wait) {
1640 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1641 return 1;
1642 }
1643 }
1644 print "** Monitor flushed **\n";
1645
1646 # if stop is defined but wasn't hit, return error
1647 # used by reboot (which wants to see a reboot)
1648 if (defined($stop) && !$booted) {
1649 $bug = 1;
1650 }
1651 return $bug;
1652}
1653
1654sub save_logs {
1655 my ($result, $basedir) = @_;
1656 my @t = localtime;
1657 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1658 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1659
1660 my $type = $build_type;
1661 if ($type =~ /useconfig/) {
1662 $type = "useconfig";
1663 }
1664
1665 my $dir = "$machine-$test_type-$type-$result-$date";
1666
1667 $dir = "$basedir/$dir";
1668
1669 if (!-d $dir) {
1670 mkpath($dir) or
1671 dodie "can't create $dir";
1672 }
1673
1674 my %files = (
1675 "config" => $output_config,
1676 "buildlog" => $buildlog,
1677 "dmesg" => $dmesg,
1678 "testlog" => $testlog,
1679 );
1680
1681 while (my ($name, $source) = each(%files)) {
1682 if (-f "$source") {
1683 cp "$source", "$dir/$name" or
1684 dodie "failed to copy $source";
1685 }
1686 }
1687
1688 doprint "*** Saved info to $dir ***\n";
1689}
1690
1691sub fail {
1692
1693 if ($die_on_failure) {
1694 dodie @_;
1695 }
1696
1697 doprint "FAILED\n";
1698
1699 my $i = $iteration;
1700
1701 # no need to reboot for just building.
1702 if (!do_not_reboot) {
1703 doprint "REBOOTING\n";
1704 reboot_to_good $sleep_time;
1705 }
1706
1707 my $name = "";
1708
1709 if (defined($test_name)) {
1710 $name = " ($test_name)";
1711 }
1712
1713 print_times;
1714
1715 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1716 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1717 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1718 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1719 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1720
1721 if (defined($store_failures)) {
1722 save_logs "fail", $store_failures;
1723 }
1724
1725 if (defined($post_test)) {
1726 run_command $post_test;
1727 }
1728
1729 return 1;
1730}
1731
1732sub run_command {
1733 my ($command, $redirect, $timeout) = @_;
1734 my $start_time;
1735 my $end_time;
1736 my $dolog = 0;
1737 my $dord = 0;
1738 my $dostdout = 0;
1739 my $pid;
1740
1741 $command =~ s/\$SSH_USER/$ssh_user/g;
1742 $command =~ s/\$MACHINE/$machine/g;
1743
1744 doprint("$command ... ");
1745 $start_time = time;
1746
1747 $pid = open(CMD, "$command 2>&1 |") or
1748 (fail "unable to exec $command" and return 0);
1749
1750 if (defined($opt{"LOG_FILE"})) {
1751 open(LOG, ">>$opt{LOG_FILE}") or
1752 dodie "failed to write to log";
1753 $dolog = 1;
1754 }
1755
1756 if (defined($redirect)) {
1757 if ($redirect eq 1) {
1758 $dostdout = 1;
1759 # Have the output of the command on its own line
1760 doprint "\n";
1761 } else {
1762 open (RD, ">$redirect") or
1763 dodie "failed to write to redirect $redirect";
1764 $dord = 1;
1765 }
1766 }
1767
1768 my $hit_timeout = 0;
1769
1770 while (1) {
1771 my $fp = \*CMD;
1772 if (defined($timeout)) {
1773 doprint "timeout = $timeout\n";
1774 }
1775 my $line = wait_for_input($fp, $timeout);
1776 if (!defined($line)) {
1777 my $now = time;
1778 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1779 doprint "Hit timeout of $timeout, killing process\n";
1780 $hit_timeout = 1;
1781 kill 9, $pid;
1782 }
1783 last;
1784 }
1785 print LOG $line if ($dolog);
1786 print RD $line if ($dord);
1787 print $line if ($dostdout);
1788 }
1789
1790 waitpid($pid, 0);
1791 # shift 8 for real exit status
1792 $run_command_status = $? >> 8;
1793
1794 close(CMD);
1795 close(LOG) if ($dolog);
1796 close(RD) if ($dord);
1797
1798 $end_time = time;
1799 my $delta = $end_time - $start_time;
1800
1801 if ($delta == 1) {
1802 doprint "[1 second] ";
1803 } else {
1804 doprint "[$delta seconds] ";
1805 }
1806
1807 if ($hit_timeout) {
1808 $run_command_status = 1;
1809 }
1810
1811 if ($run_command_status) {
1812 doprint "FAILED!\n";
1813 } else {
1814 doprint "SUCCESS\n";
1815 }
1816
1817 return !$run_command_status;
1818}
1819
1820sub run_ssh {
1821 my ($cmd, $timeout) = @_;
1822 my $cp_exec = $ssh_exec;
1823
1824 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1825 return run_command "$cp_exec", undef , $timeout;
1826}
1827
1828sub run_scp {
1829 my ($src, $dst, $cp_scp) = @_;
1830
1831 $cp_scp =~ s/\$SRC_FILE/$src/g;
1832 $cp_scp =~ s/\$DST_FILE/$dst/g;
1833
1834 return run_command "$cp_scp";
1835}
1836
1837sub run_scp_install {
1838 my ($src, $dst) = @_;
1839
1840 my $cp_scp = $scp_to_target_install;
1841
1842 return run_scp($src, $dst, $cp_scp);
1843}
1844
1845sub run_scp_mod {
1846 my ($src, $dst) = @_;
1847
1848 my $cp_scp = $scp_to_target;
1849
1850 return run_scp($src, $dst, $cp_scp);
1851}
1852
1853sub get_grub2_index {
1854
1855 return if (defined($grub_number) && defined($last_grub_menu) &&
1856 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1857 $last_machine eq $machine);
1858
1859 doprint "Find grub2 menu ... ";
1860 $grub_number = -1;
1861
1862 my $ssh_grub = $ssh_exec;
1863 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1864
1865 open(IN, "$ssh_grub |")
1866 or dodie "unable to get $grub_file";
1867
1868 my $found = 0;
1869
1870 while (<IN>) {
1871 if (/^menuentry.*$grub_menu/) {
1872 $grub_number++;
1873 $found = 1;
1874 last;
1875 } elsif (/^menuentry\s|^submenu\s/) {
1876 $grub_number++;
1877 }
1878 }
1879 close(IN);
1880
1881 dodie "Could not find '$grub_menu' in $grub_file on $machine"
1882 if (!$found);
1883 doprint "$grub_number\n";
1884 $last_grub_menu = $grub_menu;
1885 $last_machine = $machine;
1886}
1887
1888sub get_grub_index {
1889
1890 if ($reboot_type eq "grub2") {
1891 get_grub2_index;
1892 return;
1893 }
1894
1895 if ($reboot_type ne "grub") {
1896 return;
1897 }
1898 return if (defined($grub_number) && defined($last_grub_menu) &&
1899 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1900 $last_machine eq $machine);
1901
1902 doprint "Find grub menu ... ";
1903 $grub_number = -1;
1904
1905 my $ssh_grub = $ssh_exec;
1906 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1907
1908 open(IN, "$ssh_grub |")
1909 or dodie "unable to get menu.lst";
1910
1911 my $found = 0;
1912
1913 while (<IN>) {
1914 if (/^\s*title\s+$grub_menu\s*$/) {
1915 $grub_number++;
1916 $found = 1;
1917 last;
1918 } elsif (/^\s*title\s/) {
1919 $grub_number++;
1920 }
1921 }
1922 close(IN);
1923
1924 dodie "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1925 if (!$found);
1926 doprint "$grub_number\n";
1927 $last_grub_menu = $grub_menu;
1928 $last_machine = $machine;
1929}
1930
1931sub wait_for_input
1932{
1933 my ($fp, $time) = @_;
1934 my $start_time;
1935 my $rin;
1936 my $rout;
1937 my $nr;
1938 my $buf;
1939 my $line;
1940 my $ch;
1941
1942 if (!defined($time)) {
1943 $time = $timeout;
1944 }
1945
1946 $rin = '';
1947 vec($rin, fileno($fp), 1) = 1;
1948 vec($rin, fileno(\*STDIN), 1) = 1;
1949
1950 $start_time = time;
1951
1952 while (1) {
1953 $nr = select($rout=$rin, undef, undef, $time);
1954
1955 last if ($nr <= 0);
1956
1957 # copy data from stdin to the console
1958 if (vec($rout, fileno(\*STDIN), 1) == 1) {
1959 $nr = sysread(\*STDIN, $buf, 1000);
1960 syswrite($fp, $buf, $nr) if ($nr > 0);
1961 }
1962
1963 # The timeout is based on time waiting for the fp data
1964 if (vec($rout, fileno($fp), 1) != 1) {
1965 last if (defined($time) && (time - $start_time > $time));
1966 next;
1967 }
1968
1969 $line = "";
1970
1971 # try to read one char at a time
1972 while (sysread $fp, $ch, 1) {
1973 $line .= $ch;
1974 last if ($ch eq "\n");
1975 }
1976
1977 last if (!length($line));
1978
1979 return $line;
1980 }
1981 return undef;
1982}
1983
1984sub reboot_to {
1985 if (defined($switch_to_test)) {
1986 run_command $switch_to_test;
1987 }
1988
1989 if ($reboot_type eq "grub") {
1990 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1991 } elsif ($reboot_type eq "grub2") {
1992 run_ssh "$grub_reboot $grub_number";
1993 } elsif ($reboot_type eq "syslinux") {
1994 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
1995 } elsif (defined $reboot_script) {
1996 run_command "$reboot_script";
1997 }
1998 reboot;
1999}
2000
2001sub get_sha1 {
2002 my ($commit) = @_;
2003
2004 doprint "git rev-list --max-count=1 $commit ... ";
2005 my $sha1 = `git rev-list --max-count=1 $commit`;
2006 my $ret = $?;
2007
2008 logit $sha1;
2009
2010 if ($ret) {
2011 doprint "FAILED\n";
2012 dodie "Failed to get git $commit";
2013 }
2014
2015 print "SUCCESS\n";
2016
2017 chomp $sha1;
2018
2019 return $sha1;
2020}
2021
2022sub monitor {
2023 my $booted = 0;
2024 my $bug = 0;
2025 my $bug_ignored = 0;
2026 my $skip_call_trace = 0;
2027 my $loops;
2028
2029 my $start_time = time;
2030
2031 wait_for_monitor 5;
2032
2033 my $line;
2034 my $full_line = "";
2035
2036 open(DMESG, "> $dmesg") or
2037 dodie "unable to write to $dmesg";
2038
2039 reboot_to;
2040
2041 my $success_start;
2042 my $failure_start;
2043 my $monitor_start = time;
2044 my $done = 0;
2045 my $version_found = 0;
2046
2047 while (!$done) {
2048
2049 if ($bug && defined($stop_after_failure) &&
2050 $stop_after_failure >= 0) {
2051 my $time = $stop_after_failure - (time - $failure_start);
2052 $line = wait_for_input($monitor_fp, $time);
2053 if (!defined($line)) {
2054 doprint "bug timed out after $booted_timeout seconds\n";
2055 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2056 last;
2057 }
2058 } elsif ($booted) {
2059 $line = wait_for_input($monitor_fp, $booted_timeout);
2060 if (!defined($line)) {
2061 my $s = $booted_timeout == 1 ? "" : "s";
2062 doprint "Successful boot found: break after $booted_timeout second$s\n";
2063 last;
2064 }
2065 } else {
2066 $line = wait_for_input($monitor_fp);
2067 if (!defined($line)) {
2068 my $s = $timeout == 1 ? "" : "s";
2069 doprint "Timed out after $timeout second$s\n";
2070 last;
2071 }
2072 }
2073
2074 doprint $line;
2075 print DMESG $line;
2076
2077 # we are not guaranteed to get a full line
2078 $full_line .= $line;
2079
2080 if ($full_line =~ /$success_line/) {
2081 $booted = 1;
2082 $success_start = time;
2083 }
2084
2085 if ($booted && defined($stop_after_success) &&
2086 $stop_after_success >= 0) {
2087 my $now = time;
2088 if ($now - $success_start >= $stop_after_success) {
2089 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2090 last;
2091 }
2092 }
2093
2094 if ($full_line =~ /\[ backtrace testing \]/) {
2095 $skip_call_trace = 1;
2096 }
2097
2098 if ($full_line =~ /call trace:/i) {
2099 if (!$bug && !$skip_call_trace) {
2100 if ($ignore_errors) {
2101 $bug_ignored = 1;
2102 } else {
2103 $bug = 1;
2104 $failure_start = time;
2105 }
2106 }
2107 }
2108
2109 if ($bug && defined($stop_after_failure) &&
2110 $stop_after_failure >= 0) {
2111 my $now = time;
2112 if ($now - $failure_start >= $stop_after_failure) {
2113 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2114 last;
2115 }
2116 }
2117
2118 if ($full_line =~ /\[ end of backtrace testing \]/) {
2119 $skip_call_trace = 0;
2120 }
2121
2122 if ($full_line =~ /Kernel panic -/) {
2123 $failure_start = time;
2124 $bug = 1;
2125 }
2126
2127 # Detect triple faults by testing the banner
2128 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2129 if ($1 eq $version) {
2130 $version_found = 1;
2131 } elsif ($version_found && $detect_triplefault) {
2132 # We already booted into the kernel we are testing,
2133 # but now we booted into another kernel?
2134 # Consider this a triple fault.
2135 doprint "Already booted in Linux kernel $version, but now\n";
2136 doprint "we booted into Linux kernel $1.\n";
2137 doprint "Assuming that this is a triple fault.\n";
2138 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2139 last;
2140 }
2141 }
2142
2143 if ($line =~ /\n/) {
2144 $full_line = "";
2145 }
2146
2147 if ($stop_test_after > 0 && !$booted && !$bug) {
2148 if (time - $monitor_start > $stop_test_after) {
2149 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2150 $done = 1;
2151 }
2152 }
2153 }
2154
2155 my $end_time = time;
2156 $reboot_time = $end_time - $start_time;
2157
2158 close(DMESG);
2159
2160 if ($bug) {
2161 return 0 if ($in_bisect);
2162 fail "failed - got a bug report" and return 0;
2163 }
2164
2165 if (!$booted) {
2166 return 0 if ($in_bisect);
2167 fail "failed - never got a boot prompt." and return 0;
2168 }
2169
2170 if ($bug_ignored) {
2171 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2172 }
2173
2174 return 1;
2175}
2176
2177sub eval_kernel_version {
2178 my ($option) = @_;
2179
2180 $option =~ s/\$KERNEL_VERSION/$version/g;
2181
2182 return $option;
2183}
2184
2185sub do_post_install {
2186
2187 return if (!defined($post_install));
2188
2189 my $cp_post_install = eval_kernel_version $post_install;
2190 run_command "$cp_post_install" or
2191 dodie "Failed to run post install";
2192}
2193
2194# Sometimes the reboot fails, and will hang. We try to ssh to the box
2195# and if we fail, we force another reboot, that should powercycle it.
2196sub test_booted {
2197 if (!run_ssh "echo testing connection") {
2198 reboot $sleep_time;
2199 }
2200}
2201
2202sub install {
2203
2204 return if ($no_install);
2205
2206 my $start_time = time;
2207
2208 if (defined($pre_install)) {
2209 my $cp_pre_install = eval_kernel_version $pre_install;
2210 run_command "$cp_pre_install" or
2211 dodie "Failed to run pre install";
2212 }
2213
2214 my $cp_target = eval_kernel_version $target_image;
2215
2216 test_booted;
2217
2218 run_scp_install "$outputdir/$build_target", "$cp_target" or
2219 dodie "failed to copy image";
2220
2221 my $install_mods = 0;
2222
2223 # should we process modules?
2224 $install_mods = 0;
2225 open(IN, "$output_config") or dodie("Can't read config file");
2226 while (<IN>) {
2227 if (/CONFIG_MODULES(=y)?/) {
2228 if (defined($1)) {
2229 $install_mods = 1;
2230 last;
2231 }
2232 }
2233 }
2234 close(IN);
2235
2236 if (!$install_mods) {
2237 do_post_install;
2238 doprint "No modules needed\n";
2239 my $end_time = time;
2240 $install_time = $end_time - $start_time;
2241 return;
2242 }
2243
2244 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2245 dodie "Failed to install modules";
2246
2247 my $modlib = "/lib/modules/$version";
2248 my $modtar = "ktest-mods.tar.bz2";
2249
2250 run_ssh "rm -rf $modlib" or
2251 dodie "failed to remove old mods: $modlib";
2252
2253 # would be nice if scp -r did not follow symbolic links
2254 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2255 dodie "making tarball";
2256
2257 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2258 dodie "failed to copy modules";
2259
2260 unlink "$tmpdir/$modtar";
2261
2262 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2263 dodie "failed to tar modules";
2264
2265 run_ssh "rm -f /tmp/$modtar";
2266
2267 do_post_install;
2268
2269 my $end_time = time;
2270 $install_time = $end_time - $start_time;
2271}
2272
2273sub get_version {
2274 # get the release name
2275 return if ($have_version);
2276 doprint "$make kernelrelease ... ";
2277 $version = `$make -s kernelrelease | tail -1`;
2278 chomp($version);
2279 doprint "$version\n";
2280 $have_version = 1;
2281}
2282
2283sub start_monitor_and_install {
2284 # Make sure the stable kernel has finished booting
2285
2286 # Install bisects, don't need console
2287 if (defined $console) {
2288 start_monitor;
2289 wait_for_monitor 5;
2290 end_monitor;
2291 }
2292
2293 get_grub_index;
2294 get_version;
2295 install;
2296
2297 start_monitor if (defined $console);
2298 return monitor;
2299}
2300
2301my $check_build_re = ".*:.*(warning|error|Error):.*";
2302my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2303
2304sub process_warning_line {
2305 my ($line) = @_;
2306
2307 chomp $line;
2308
2309 # for distcc heterogeneous systems, some compilers
2310 # do things differently causing warning lines
2311 # to be slightly different. This makes an attempt
2312 # to fixe those issues.
2313
2314 # chop off the index into the line
2315 # using distcc, some compilers give different indexes
2316 # depending on white space
2317 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2318
2319 # Some compilers use UTF-8 extended for quotes and some don't.
2320 $line =~ s/$utf8_quote/'/g;
2321
2322 return $line;
2323}
2324
2325# Read buildlog and check against warnings file for any
2326# new warnings.
2327#
2328# Returns 1 if OK
2329# 0 otherwise
2330sub check_buildlog {
2331 return 1 if (!defined $warnings_file);
2332
2333 my %warnings_list;
2334
2335 # Failed builds should not reboot the target
2336 my $save_no_reboot = $no_reboot;
2337 $no_reboot = 1;
2338
2339 if (-f $warnings_file) {
2340 open(IN, $warnings_file) or
2341 dodie "Error opening $warnings_file";
2342
2343 while (<IN>) {
2344 if (/$check_build_re/) {
2345 my $warning = process_warning_line $_;
2346
2347 $warnings_list{$warning} = 1;
2348 }
2349 }
2350 close(IN);
2351 }
2352
2353 # If warnings file didn't exist, and WARNINGS_FILE exist,
2354 # then we fail on any warning!
2355
2356 open(IN, $buildlog) or dodie "Can't open $buildlog";
2357 while (<IN>) {
2358 if (/$check_build_re/) {
2359 my $warning = process_warning_line $_;
2360
2361 if (!defined $warnings_list{$warning}) {
2362 fail "New warning found (not in $warnings_file)\n$_\n";
2363 $no_reboot = $save_no_reboot;
2364 return 0;
2365 }
2366 }
2367 }
2368 $no_reboot = $save_no_reboot;
2369 close(IN);
2370}
2371
2372sub check_patch_buildlog {
2373 my ($patch) = @_;
2374
2375 my @files = `git show $patch | diffstat -l`;
2376
2377 foreach my $file (@files) {
2378 chomp $file;
2379 }
2380
2381 open(IN, "git show $patch |") or
2382 dodie "failed to show $patch";
2383 while (<IN>) {
2384 if (m,^--- a/(.*),) {
2385 chomp $1;
2386 $files[$#files] = $1;
2387 }
2388 }
2389 close(IN);
2390
2391 open(IN, $buildlog) or dodie "Can't open $buildlog";
2392 while (<IN>) {
2393 if (/^\s*(.*?):.*(warning|error)/) {
2394 my $err = $1;
2395 foreach my $file (@files) {
2396 my $fullpath = "$builddir/$file";
2397 if ($file eq $err || $fullpath eq $err) {
2398 fail "$file built with warnings" and return 0;
2399 }
2400 }
2401 }
2402 }
2403 close(IN);
2404
2405 return 1;
2406}
2407
2408sub apply_min_config {
2409 my $outconfig = "$output_config.new";
2410
2411 # Read the config file and remove anything that
2412 # is in the force_config hash (from minconfig and others)
2413 # then add the force config back.
2414
2415 doprint "Applying minimum configurations into $output_config.new\n";
2416
2417 open (OUT, ">$outconfig") or
2418 dodie "Can't create $outconfig";
2419
2420 if (-f $output_config) {
2421 open (IN, $output_config) or
2422 dodie "Failed to open $output_config";
2423 while (<IN>) {
2424 if (/^(# )?(CONFIG_[^\s=]*)/) {
2425 next if (defined($force_config{$2}));
2426 }
2427 print OUT;
2428 }
2429 close IN;
2430 }
2431 foreach my $config (keys %force_config) {
2432 print OUT "$force_config{$config}\n";
2433 }
2434 close OUT;
2435
2436 run_command "mv $outconfig $output_config";
2437}
2438
2439sub make_oldconfig {
2440
2441 my @force_list = keys %force_config;
2442
2443 if ($#force_list >= 0) {
2444 apply_min_config;
2445 }
2446
2447 if (!run_command "$make olddefconfig") {
2448 # Perhaps olddefconfig doesn't exist in this version of the kernel
2449 # try oldnoconfig
2450 doprint "olddefconfig failed, trying make oldnoconfig\n";
2451 if (!run_command "$make oldnoconfig") {
2452 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2453 # try a yes '' | oldconfig
2454 run_command "yes '' | $make oldconfig" or
2455 dodie "failed make config oldconfig";
2456 }
2457 }
2458}
2459
2460# read a config file and use this to force new configs.
2461sub load_force_config {
2462 my ($config) = @_;
2463
2464 doprint "Loading force configs from $config\n";
2465 open(IN, $config) or
2466 dodie "failed to read $config";
2467 while (<IN>) {
2468 chomp;
2469 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2470 $force_config{$1} = $_;
2471 } elsif (/^# (CONFIG_\S*) is not set/) {
2472 $force_config{$1} = $_;
2473 }
2474 }
2475 close IN;
2476}
2477
2478sub build {
2479 my ($type) = @_;
2480
2481 unlink $buildlog;
2482
2483 my $start_time = time;
2484
2485 # Failed builds should not reboot the target
2486 my $save_no_reboot = $no_reboot;
2487 $no_reboot = 1;
2488
2489 # Calculate a new version from here.
2490 $have_version = 0;
2491
2492 if (defined($pre_build)) {
2493 my $ret = run_command $pre_build;
2494 if (!$ret && defined($pre_build_die) &&
2495 $pre_build_die) {
2496 dodie "failed to pre_build\n";
2497 }
2498 }
2499
2500 if ($type =~ /^useconfig:(.*)/) {
2501 run_command "cp $1 $output_config" or
2502 dodie "could not copy $1 to .config";
2503
2504 $type = "oldconfig";
2505 }
2506
2507 # old config can ask questions
2508 if ($type eq "oldconfig") {
2509 $type = "olddefconfig";
2510
2511 # allow for empty configs
2512 run_command "touch $output_config";
2513
2514 if (!$noclean) {
2515 run_command "mv $output_config $outputdir/config_temp" or
2516 dodie "moving .config";
2517
2518 run_command "$make mrproper" or dodie "make mrproper";
2519
2520 run_command "mv $outputdir/config_temp $output_config" or
2521 dodie "moving config_temp";
2522 }
2523
2524 } elsif (!$noclean) {
2525 unlink "$output_config";
2526 run_command "$make mrproper" or
2527 dodie "make mrproper";
2528 }
2529
2530 # add something to distinguish this build
2531 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2532 print OUT "$localversion\n";
2533 close(OUT);
2534
2535 if (defined($minconfig)) {
2536 load_force_config($minconfig);
2537 }
2538
2539 if ($type ne "olddefconfig") {
2540 run_command "$make $type" or
2541 dodie "failed make config";
2542 }
2543 # Run old config regardless, to enforce min configurations
2544 make_oldconfig;
2545
2546 my $build_ret = run_command "$make $build_options", $buildlog;
2547
2548 if (defined($post_build)) {
2549 # Because a post build may change the kernel version
2550 # do it now.
2551 get_version;
2552 my $ret = run_command $post_build;
2553 if (!$ret && defined($post_build_die) &&
2554 $post_build_die) {
2555 dodie "failed to post_build\n";
2556 }
2557 }
2558
2559 if (!$build_ret) {
2560 # bisect may need this to pass
2561 if ($in_bisect) {
2562 $no_reboot = $save_no_reboot;
2563 return 0;
2564 }
2565 fail "failed build" and return 0;
2566 }
2567
2568 $no_reboot = $save_no_reboot;
2569
2570 my $end_time = time;
2571 $build_time = $end_time - $start_time;
2572
2573 return 1;
2574}
2575
2576sub halt {
2577 if (!run_ssh "halt" or defined($power_off)) {
2578 if (defined($poweroff_after_halt)) {
2579 sleep $poweroff_after_halt;
2580 run_command "$power_off";
2581 }
2582 } else {
2583 # nope? the zap it!
2584 run_command "$power_off";
2585 }
2586}
2587
2588sub success {
2589 my ($i) = @_;
2590
2591 $successes++;
2592
2593 my $name = "";
2594
2595 if (defined($test_name)) {
2596 $name = " ($test_name)";
2597 }
2598
2599 print_times;
2600
2601 doprint "\n\n*******************************************\n";
2602 doprint "*******************************************\n";
2603 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2604 doprint "*******************************************\n";
2605 doprint "*******************************************\n";
2606
2607 if (defined($store_successes)) {
2608 save_logs "success", $store_successes;
2609 }
2610
2611 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2612 doprint "Reboot and wait $sleep_time seconds\n";
2613 reboot_to_good $sleep_time;
2614 }
2615
2616 if (defined($post_test)) {
2617 run_command $post_test;
2618 }
2619}
2620
2621sub answer_bisect {
2622 for (;;) {
2623 doprint "Pass, fail, or skip? [p/f/s]";
2624 my $ans = <STDIN>;
2625 chomp $ans;
2626 if ($ans eq "p" || $ans eq "P") {
2627 return 1;
2628 } elsif ($ans eq "f" || $ans eq "F") {
2629 return 0;
2630 } elsif ($ans eq "s" || $ans eq "S") {
2631 return -1;
2632 } else {
2633 print "Please answer 'p', 'f', or 's'\n";
2634 }
2635 }
2636}
2637
2638sub child_run_test {
2639
2640 # child should have no power
2641 $reboot_on_error = 0;
2642 $poweroff_on_error = 0;
2643 $die_on_failure = 1;
2644
2645 run_command $run_test, $testlog;
2646
2647 exit $run_command_status;
2648}
2649
2650my $child_done;
2651
2652sub child_finished {
2653 $child_done = 1;
2654}
2655
2656sub do_run_test {
2657 my $child_pid;
2658 my $child_exit;
2659 my $line;
2660 my $full_line;
2661 my $bug = 0;
2662 my $bug_ignored = 0;
2663
2664 my $start_time = time;
2665
2666 wait_for_monitor 1;
2667
2668 doprint "run test $run_test\n";
2669
2670 $child_done = 0;
2671
2672 $SIG{CHLD} = qw(child_finished);
2673
2674 $child_pid = fork;
2675
2676 child_run_test if (!$child_pid);
2677
2678 $full_line = "";
2679
2680 do {
2681 $line = wait_for_input($monitor_fp, 1);
2682 if (defined($line)) {
2683
2684 # we are not guaranteed to get a full line
2685 $full_line .= $line;
2686 doprint $line;
2687
2688 if ($full_line =~ /call trace:/i) {
2689 if ($ignore_errors) {
2690 $bug_ignored = 1;
2691 } else {
2692 $bug = 1;
2693 }
2694 }
2695
2696 if ($full_line =~ /Kernel panic -/) {
2697 $bug = 1;
2698 }
2699
2700 if ($line =~ /\n/) {
2701 $full_line = "";
2702 }
2703 }
2704 } while (!$child_done && !$bug);
2705
2706 if (!$bug && $bug_ignored) {
2707 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2708 }
2709
2710 if ($bug) {
2711 my $failure_start = time;
2712 my $now;
2713 do {
2714 $line = wait_for_input($monitor_fp, 1);
2715 if (defined($line)) {
2716 doprint $line;
2717 }
2718 $now = time;
2719 if ($now - $failure_start >= $stop_after_failure) {
2720 last;
2721 }
2722 } while (defined($line));
2723
2724 doprint "Detected kernel crash!\n";
2725 # kill the child with extreme prejudice
2726 kill 9, $child_pid;
2727 }
2728
2729 waitpid $child_pid, 0;
2730 $child_exit = $? >> 8;
2731
2732 my $end_time = time;
2733 $test_time = $end_time - $start_time;
2734
2735 if (!$bug && $in_bisect) {
2736 if (defined($bisect_ret_good)) {
2737 if ($child_exit == $bisect_ret_good) {
2738 return 1;
2739 }
2740 }
2741 if (defined($bisect_ret_skip)) {
2742 if ($child_exit == $bisect_ret_skip) {
2743 return -1;
2744 }
2745 }
2746 if (defined($bisect_ret_abort)) {
2747 if ($child_exit == $bisect_ret_abort) {
2748 fail "test abort" and return -2;
2749 }
2750 }
2751 if (defined($bisect_ret_bad)) {
2752 if ($child_exit == $bisect_ret_skip) {
2753 return 0;
2754 }
2755 }
2756 if (defined($bisect_ret_default)) {
2757 if ($bisect_ret_default eq "good") {
2758 return 1;
2759 } elsif ($bisect_ret_default eq "bad") {
2760 return 0;
2761 } elsif ($bisect_ret_default eq "skip") {
2762 return -1;
2763 } elsif ($bisect_ret_default eq "abort") {
2764 return -2;
2765 } else {
2766 fail "unknown default action: $bisect_ret_default"
2767 and return -2;
2768 }
2769 }
2770 }
2771
2772 if ($bug || $child_exit) {
2773 return 0 if $in_bisect;
2774 fail "test failed" and return 0;
2775 }
2776 return 1;
2777}
2778
2779sub run_git_bisect {
2780 my ($command) = @_;
2781
2782 doprint "$command ... ";
2783
2784 my $output = `$command 2>&1`;
2785 my $ret = $?;
2786
2787 logit $output;
2788
2789 if ($ret) {
2790 doprint "FAILED\n";
2791 dodie "Failed to git bisect";
2792 }
2793
2794 doprint "SUCCESS\n";
2795 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2796 doprint "$1 [$2]\n";
2797 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2798 $bisect_bad_commit = $1;
2799 doprint "Found bad commit... $1\n";
2800 return 0;
2801 } else {
2802 # we already logged it, just print it now.
2803 print $output;
2804 }
2805
2806 return 1;
2807}
2808
2809sub bisect_reboot {
2810 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2811 reboot_to_good $bisect_sleep_time;
2812}
2813
2814# returns 1 on success, 0 on failure, -1 on skip
2815sub run_bisect_test {
2816 my ($type, $buildtype) = @_;
2817
2818 my $failed = 0;
2819 my $result;
2820 my $output;
2821 my $ret;
2822
2823 $in_bisect = 1;
2824
2825 build $buildtype or $failed = 1;
2826
2827 if ($type ne "build") {
2828 if ($failed && $bisect_skip) {
2829 $in_bisect = 0;
2830 return -1;
2831 }
2832 dodie "Failed on build" if $failed;
2833
2834 # Now boot the box
2835 start_monitor_and_install or $failed = 1;
2836
2837 if ($type ne "boot") {
2838 if ($failed && $bisect_skip) {
2839 end_monitor;
2840 bisect_reboot;
2841 $in_bisect = 0;
2842 return -1;
2843 }
2844 dodie "Failed on boot" if $failed;
2845
2846 do_run_test or $failed = 1;
2847 }
2848 end_monitor;
2849 }
2850
2851 if ($failed) {
2852 $result = 0;
2853 } else {
2854 $result = 1;
2855 }
2856
2857 # reboot the box to a kernel we can ssh to
2858 if ($type ne "build") {
2859 bisect_reboot;
2860 }
2861 $in_bisect = 0;
2862
2863 return $result;
2864}
2865
2866sub run_bisect {
2867 my ($type) = @_;
2868 my $buildtype = "oldconfig";
2869
2870 # We should have a minconfig to use?
2871 if (defined($minconfig)) {
2872 $buildtype = "useconfig:$minconfig";
2873 }
2874
2875 # If the user sets bisect_tries to less than 1, then no tries
2876 # is a success.
2877 my $ret = 1;
2878
2879 # Still let the user manually decide that though.
2880 if ($bisect_tries < 1 && $bisect_manual) {
2881 $ret = answer_bisect;
2882 }
2883
2884 for (my $i = 0; $i < $bisect_tries; $i++) {
2885 if ($bisect_tries > 1) {
2886 my $t = $i + 1;
2887 doprint("Running bisect trial $t of $bisect_tries:\n");
2888 }
2889 $ret = run_bisect_test $type, $buildtype;
2890
2891 if ($bisect_manual) {
2892 $ret = answer_bisect;
2893 }
2894
2895 last if (!$ret);
2896 }
2897
2898 # Are we looking for where it worked, not failed?
2899 if ($reverse_bisect && $ret >= 0) {
2900 $ret = !$ret;
2901 }
2902
2903 if ($ret > 0) {
2904 return "good";
2905 } elsif ($ret == 0) {
2906 return "bad";
2907 } elsif ($bisect_skip) {
2908 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2909 return "skip";
2910 }
2911}
2912
2913sub update_bisect_replay {
2914 my $tmp_log = "$tmpdir/ktest_bisect_log";
2915 run_command "git bisect log > $tmp_log" or
2916 dodie "can't create bisect log";
2917 return $tmp_log;
2918}
2919
2920sub bisect {
2921 my ($i) = @_;
2922
2923 my $result;
2924
2925 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2926 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2927 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2928
2929 my $good = $bisect_good;
2930 my $bad = $bisect_bad;
2931 my $type = $bisect_type;
2932 my $start = $bisect_start;
2933 my $replay = $bisect_replay;
2934 my $start_files = $bisect_files;
2935
2936 if (defined($start_files)) {
2937 $start_files = " -- " . $start_files;
2938 } else {
2939 $start_files = "";
2940 }
2941
2942 # convert to true sha1's
2943 $good = get_sha1($good);
2944 $bad = get_sha1($bad);
2945
2946 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2947 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2948 $reverse_bisect = 1;
2949 } else {
2950 $reverse_bisect = 0;
2951 }
2952
2953 # Can't have a test without having a test to run
2954 if ($type eq "test" && !defined($run_test)) {
2955 $type = "boot";
2956 }
2957
2958 # Check if a bisect was running
2959 my $bisect_start_file = "$builddir/.git/BISECT_START";
2960
2961 my $check = $bisect_check;
2962 my $do_check = defined($check) && $check ne "0";
2963
2964 if ( -f $bisect_start_file ) {
2965 print "Bisect in progress found\n";
2966 if ($do_check) {
2967 print " If you say yes, then no checks of good or bad will be done\n";
2968 }
2969 if (defined($replay)) {
2970 print "** BISECT_REPLAY is defined in config file **";
2971 print " Ignore config option and perform new git bisect log?\n";
2972 if (read_ync " (yes, no, or cancel) ") {
2973 $replay = update_bisect_replay;
2974 $do_check = 0;
2975 }
2976 } elsif (read_yn "read git log and continue?") {
2977 $replay = update_bisect_replay;
2978 $do_check = 0;
2979 }
2980 }
2981
2982 if ($do_check) {
2983
2984 # get current HEAD
2985 my $head = get_sha1("HEAD");
2986
2987 if ($check ne "good") {
2988 doprint "TESTING BISECT BAD [$bad]\n";
2989 run_command "git checkout $bad" or
2990 dodie "Failed to checkout $bad";
2991
2992 $result = run_bisect $type;
2993
2994 if ($result ne "bad") {
2995 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2996 }
2997 }
2998
2999 if ($check ne "bad") {
3000 doprint "TESTING BISECT GOOD [$good]\n";
3001 run_command "git checkout $good" or
3002 dodie "Failed to checkout $good";
3003
3004 $result = run_bisect $type;
3005
3006 if ($result ne "good") {
3007 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3008 }
3009 }
3010
3011 # checkout where we started
3012 run_command "git checkout $head" or
3013 dodie "Failed to checkout $head";
3014 }
3015
3016 run_command "git bisect start$start_files" or
3017 dodie "could not start bisect";
3018
3019 if (defined($replay)) {
3020 run_command "git bisect replay $replay" or
3021 dodie "failed to run replay";
3022 } else {
3023
3024 run_command "git bisect good $good" or
3025 dodie "could not set bisect good to $good";
3026
3027 run_git_bisect "git bisect bad $bad" or
3028 dodie "could not set bisect bad to $bad";
3029
3030 }
3031
3032 if (defined($start)) {
3033 run_command "git checkout $start" or
3034 dodie "failed to checkout $start";
3035 }
3036
3037 my $test;
3038 do {
3039 $result = run_bisect $type;
3040 $test = run_git_bisect "git bisect $result";
3041 print_times;
3042 } while ($test);
3043
3044 run_command "git bisect log" or
3045 dodie "could not capture git bisect log";
3046
3047 run_command "git bisect reset" or
3048 dodie "could not reset git bisect";
3049
3050 doprint "Bad commit was [$bisect_bad_commit]\n";
3051
3052 success $i;
3053}
3054
3055# config_ignore holds the configs that were set (or unset) for
3056# a good config and we will ignore these configs for the rest
3057# of a config bisect. These configs stay as they were.
3058my %config_ignore;
3059
3060# config_set holds what all configs were set as.
3061my %config_set;
3062
3063# config_off holds the set of configs that the bad config had disabled.
3064# We need to record them and set them in the .config when running
3065# olddefconfig, because olddefconfig keeps the defaults.
3066my %config_off;
3067
3068# config_off_tmp holds a set of configs to turn off for now
3069my @config_off_tmp;
3070
3071# config_list is the set of configs that are being tested
3072my %config_list;
3073my %null_config;
3074
3075my %dependency;
3076
3077sub assign_configs {
3078 my ($hash, $config) = @_;
3079
3080 doprint "Reading configs from $config\n";
3081
3082 open (IN, $config)
3083 or dodie "Failed to read $config";
3084
3085 while (<IN>) {
3086 chomp;
3087 if (/^((CONFIG\S*)=.*)/) {
3088 ${$hash}{$2} = $1;
3089 } elsif (/^(# (CONFIG\S*) is not set)/) {
3090 ${$hash}{$2} = $1;
3091 }
3092 }
3093
3094 close(IN);
3095}
3096
3097sub process_config_ignore {
3098 my ($config) = @_;
3099
3100 assign_configs \%config_ignore, $config;
3101}
3102
3103sub get_dependencies {
3104 my ($config) = @_;
3105
3106 my $arr = $dependency{$config};
3107 if (!defined($arr)) {
3108 return ();
3109 }
3110
3111 my @deps = @{$arr};
3112
3113 foreach my $dep (@{$arr}) {
3114 print "ADD DEP $dep\n";
3115 @deps = (@deps, get_dependencies $dep);
3116 }
3117
3118 return @deps;
3119}
3120
3121sub save_config {
3122 my ($pc, $file) = @_;
3123
3124 my %configs = %{$pc};
3125
3126 doprint "Saving configs into $file\n";
3127
3128 open(OUT, ">$file") or dodie "Can not write to $file";
3129
3130 foreach my $config (keys %configs) {
3131 print OUT "$configs{$config}\n";
3132 }
3133 close(OUT);
3134}
3135
3136sub create_config {
3137 my ($name, $pc) = @_;
3138
3139 doprint "Creating old config from $name configs\n";
3140
3141 save_config $pc, $output_config;
3142
3143 make_oldconfig;
3144}
3145
3146sub run_config_bisect_test {
3147 my ($type) = @_;
3148
3149 my $ret = run_bisect_test $type, "oldconfig";
3150
3151 if ($bisect_manual) {
3152 $ret = answer_bisect;
3153 }
3154
3155 return $ret;
3156}
3157
3158sub config_bisect_end {
3159 my ($good, $bad) = @_;
3160 my $diffexec = "diff -u";
3161
3162 if (-f "$builddir/scripts/diffconfig") {
3163 $diffexec = "$builddir/scripts/diffconfig";
3164 }
3165 doprint "\n\n***************************************\n";
3166 doprint "No more config bisecting possible.\n";
3167 run_command "$diffexec $good $bad", 1;
3168 doprint "***************************************\n\n";
3169}
3170
3171sub run_config_bisect {
3172 my ($good, $bad, $last_result) = @_;
3173 my $reset = "";
3174 my $cmd;
3175 my $ret;
3176
3177 if (!length($last_result)) {
3178 $reset = "-r";
3179 }
3180 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3181
3182 # config-bisect returns:
3183 # 0 if there is more to bisect
3184 # 1 for finding a good config
3185 # 2 if it can not find any more configs
3186 # -1 (255) on error
3187 if ($run_command_status) {
3188 return $run_command_status;
3189 }
3190
3191 $ret = run_config_bisect_test $config_bisect_type;
3192 if ($ret) {
3193 doprint "NEW GOOD CONFIG\n";
3194 # Return 3 for good config
3195 return 3;
3196 } else {
3197 doprint "NEW BAD CONFIG\n";
3198 # Return 4 for bad config
3199 return 4;
3200 }
3201}
3202
3203sub config_bisect {
3204 my ($i) = @_;
3205
3206 my $good_config;
3207 my $bad_config;
3208
3209 my $type = $config_bisect_type;
3210 my $ret;
3211
3212 $bad_config = $config_bisect;
3213
3214 if (defined($config_bisect_good)) {
3215 $good_config = $config_bisect_good;
3216 } elsif (defined($minconfig)) {
3217 $good_config = $minconfig;
3218 } else {
3219 doprint "No config specified, checking if defconfig works";
3220 $ret = run_bisect_test $type, "defconfig";
3221 if (!$ret) {
3222 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3223 return 1;
3224 }
3225 $good_config = $output_config;
3226 }
3227
3228 if (!defined($config_bisect_exec)) {
3229 # First check the location that ktest.pl ran
3230 my @locations = ( "$pwd/config-bisect.pl",
3231 "$dirname/config-bisect.pl",
3232 "$builddir/tools/testing/ktest/config-bisect.pl",
3233 undef );
3234 foreach my $loc (@locations) {
3235 doprint "loc = $loc\n";
3236 $config_bisect_exec = $loc;
3237 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3238 }
3239 if (!defined($config_bisect_exec)) {
3240 fail "Could not find an executable config-bisect.pl\n",
3241 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3242 return 1;
3243 }
3244 }
3245
3246 # we don't want min configs to cause issues here.
3247 doprint "Disabling 'MIN_CONFIG' for this test\n";
3248 undef $minconfig;
3249
3250 my %good_configs;
3251 my %bad_configs;
3252 my %tmp_configs;
3253
3254 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3255 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3256 if (-f "$tmpdir/good_config.tmp") {
3257 $good_config = "$tmpdir/good_config.tmp";
3258 } else {
3259 $good_config = "$tmpdir/good_config";
3260 }
3261 if (-f "$tmpdir/bad_config.tmp") {
3262 $bad_config = "$tmpdir/bad_config.tmp";
3263 } else {
3264 $bad_config = "$tmpdir/bad_config";
3265 }
3266 }
3267 }
3268 doprint "Run good configs through make oldconfig\n";
3269 assign_configs \%tmp_configs, $good_config;
3270 create_config "$good_config", \%tmp_configs;
3271 $good_config = "$tmpdir/good_config";
3272 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3273
3274 doprint "Run bad configs through make oldconfig\n";
3275 assign_configs \%tmp_configs, $bad_config;
3276 create_config "$bad_config", \%tmp_configs;
3277 $bad_config = "$tmpdir/bad_config";
3278 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3279
3280 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3281 if ($config_bisect_check ne "good") {
3282 doprint "Testing bad config\n";
3283
3284 $ret = run_bisect_test $type, "useconfig:$bad_config";
3285 if ($ret) {
3286 fail "Bad config succeeded when expected to fail!";
3287 return 0;
3288 }
3289 }
3290 if ($config_bisect_check ne "bad") {
3291 doprint "Testing good config\n";
3292
3293 $ret = run_bisect_test $type, "useconfig:$good_config";
3294 if (!$ret) {
3295 fail "Good config failed when expected to succeed!";
3296 return 0;
3297 }
3298 }
3299 }
3300
3301 my $last_run = "";
3302
3303 do {
3304 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3305 if ($ret == 3) {
3306 $last_run = "good";
3307 } elsif ($ret == 4) {
3308 $last_run = "bad";
3309 }
3310 print_times;
3311 } while ($ret == 3 || $ret == 4);
3312
3313 if ($ret == 2) {
3314 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3315 }
3316
3317 return $ret if ($ret < 0);
3318
3319 success $i;
3320}
3321
3322sub patchcheck_reboot {
3323 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3324 reboot_to_good $patchcheck_sleep_time;
3325}
3326
3327sub patchcheck {
3328 my ($i) = @_;
3329
3330 dodie "PATCHCHECK_START[$i] not defined\n"
3331 if (!defined($patchcheck_start));
3332 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3333 if (!defined($patchcheck_type));
3334
3335 my $start = $patchcheck_start;
3336
3337 my $cherry = $patchcheck_cherry;
3338 if (!defined($cherry)) {
3339 $cherry = 0;
3340 }
3341
3342 my $end = "HEAD";
3343 if (defined($patchcheck_end)) {
3344 $end = $patchcheck_end;
3345 } elsif ($cherry) {
3346 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3347 }
3348
3349 # Get the true sha1's since we can use things like HEAD~3
3350 $start = get_sha1($start);
3351 $end = get_sha1($end);
3352
3353 my $type = $patchcheck_type;
3354
3355 # Can't have a test without having a test to run
3356 if ($type eq "test" && !defined($run_test)) {
3357 $type = "boot";
3358 }
3359
3360 if ($cherry) {
3361 open (IN, "git cherry -v $start $end|") or
3362 dodie "could not get git list";
3363 } else {
3364 open (IN, "git log --pretty=oneline $end|") or
3365 dodie "could not get git list";
3366 }
3367
3368 my @list;
3369
3370 while (<IN>) {
3371 chomp;
3372 # git cherry adds a '+' we want to remove
3373 s/^\+ //;
3374 $list[$#list+1] = $_;
3375 last if (/^$start/);
3376 }
3377 close(IN);
3378
3379 if (!$cherry) {
3380 if ($list[$#list] !~ /^$start/) {
3381 fail "SHA1 $start not found";
3382 }
3383
3384 # go backwards in the list
3385 @list = reverse @list;
3386 }
3387
3388 doprint("Going to test the following commits:\n");
3389 foreach my $l (@list) {
3390 doprint "$l\n";
3391 }
3392
3393 my $save_clean = $noclean;
3394 my %ignored_warnings;
3395
3396 if (defined($ignore_warnings)) {
3397 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3398 $ignored_warnings{$sha1} = 1;
3399 }
3400 }
3401
3402 $in_patchcheck = 1;
3403 foreach my $item (@list) {
3404 my $sha1 = $item;
3405 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3406
3407 doprint "\nProcessing commit \"$item\"\n\n";
3408
3409 run_command "git checkout $sha1" or
3410 dodie "Failed to checkout $sha1";
3411
3412 # only clean on the first and last patch
3413 if ($item eq $list[0] ||
3414 $item eq $list[$#list]) {
3415 $noclean = $save_clean;
3416 } else {
3417 $noclean = 1;
3418 }
3419
3420 if (defined($minconfig)) {
3421 build "useconfig:$minconfig" or return 0;
3422 } else {
3423 # ?? no config to use?
3424 build "oldconfig" or return 0;
3425 }
3426
3427 # No need to do per patch checking if warnings file exists
3428 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3429 check_patch_buildlog $sha1 or return 0;
3430 }
3431
3432 check_buildlog or return 0;
3433
3434 next if ($type eq "build");
3435
3436 my $failed = 0;
3437
3438 start_monitor_and_install or $failed = 1;
3439
3440 if (!$failed && $type ne "boot"){
3441 do_run_test or $failed = 1;
3442 }
3443 end_monitor;
3444 if ($failed) {
3445 print_times;
3446 return 0;
3447 }
3448 patchcheck_reboot;
3449 print_times;
3450 }
3451 $in_patchcheck = 0;
3452 success $i;
3453
3454 return 1;
3455}
3456
3457my %depends;
3458my %depcount;
3459my $iflevel = 0;
3460my @ifdeps;
3461
3462# prevent recursion
3463my %read_kconfigs;
3464
3465sub add_dep {
3466 # $config depends on $dep
3467 my ($config, $dep) = @_;
3468
3469 if (defined($depends{$config})) {
3470 $depends{$config} .= " " . $dep;
3471 } else {
3472 $depends{$config} = $dep;
3473 }
3474
3475 # record the number of configs depending on $dep
3476 if (defined $depcount{$dep}) {
3477 $depcount{$dep}++;
3478 } else {
3479 $depcount{$dep} = 1;
3480 }
3481}
3482
3483# taken from streamline_config.pl
3484sub read_kconfig {
3485 my ($kconfig) = @_;
3486
3487 my $state = "NONE";
3488 my $config;
3489 my @kconfigs;
3490
3491 my $cont = 0;
3492 my $line;
3493
3494
3495 if (! -f $kconfig) {
3496 doprint "file $kconfig does not exist, skipping\n";
3497 return;
3498 }
3499
3500 open(KIN, "$kconfig")
3501 or dodie "Can't open $kconfig";
3502 while (<KIN>) {
3503 chomp;
3504
3505 # Make sure that lines ending with \ continue
3506 if ($cont) {
3507 $_ = $line . " " . $_;
3508 }
3509
3510 if (s/\\$//) {
3511 $cont = 1;
3512 $line = $_;
3513 next;
3514 }
3515
3516 $cont = 0;
3517
3518 # collect any Kconfig sources
3519 if (/^source\s*"(.*)"/) {
3520 $kconfigs[$#kconfigs+1] = $1;
3521 }
3522
3523 # configs found
3524 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3525 $state = "NEW";
3526 $config = $2;
3527
3528 for (my $i = 0; $i < $iflevel; $i++) {
3529 add_dep $config, $ifdeps[$i];
3530 }
3531
3532 # collect the depends for the config
3533 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3534
3535 add_dep $config, $1;
3536
3537 # Get the configs that select this config
3538 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3539
3540 # selected by depends on config
3541 add_dep $1, $config;
3542
3543 # Check for if statements
3544 } elsif (/^if\s+(.*\S)\s*$/) {
3545 my $deps = $1;
3546 # remove beginning and ending non text
3547 $deps =~ s/^[^a-zA-Z0-9_]*//;
3548 $deps =~ s/[^a-zA-Z0-9_]*$//;
3549
3550 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3551
3552 $ifdeps[$iflevel++] = join ':', @deps;
3553
3554 } elsif (/^endif/) {
3555
3556 $iflevel-- if ($iflevel);
3557
3558 # stop on "help"
3559 } elsif (/^\s*help\s*$/) {
3560 $state = "NONE";
3561 }
3562 }
3563 close(KIN);
3564
3565 # read in any configs that were found.
3566 foreach $kconfig (@kconfigs) {
3567 if (!defined($read_kconfigs{$kconfig})) {
3568 $read_kconfigs{$kconfig} = 1;
3569 read_kconfig("$builddir/$kconfig");
3570 }
3571 }
3572}
3573
3574sub read_depends {
3575 # find out which arch this is by the kconfig file
3576 open (IN, $output_config)
3577 or dodie "Failed to read $output_config";
3578 my $arch;
3579 while (<IN>) {
3580 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3581 $arch = $1;
3582 last;
3583 }
3584 }
3585 close IN;
3586
3587 if (!defined($arch)) {
3588 doprint "Could not find arch from config file\n";
3589 doprint "no dependencies used\n";
3590 return;
3591 }
3592
3593 # arch is really the subarch, we need to know
3594 # what directory to look at.
3595 if ($arch eq "i386" || $arch eq "x86_64") {
3596 $arch = "x86";
3597 }
3598
3599 my $kconfig = "$builddir/arch/$arch/Kconfig";
3600
3601 if (! -f $kconfig && $arch =~ /\d$/) {
3602 my $orig = $arch;
3603 # some subarchs have numbers, truncate them
3604 $arch =~ s/\d*$//;
3605 $kconfig = "$builddir/arch/$arch/Kconfig";
3606 if (! -f $kconfig) {
3607 doprint "No idea what arch dir $orig is for\n";
3608 doprint "no dependencies used\n";
3609 return;
3610 }
3611 }
3612
3613 read_kconfig($kconfig);
3614}
3615
3616sub make_new_config {
3617 my @configs = @_;
3618
3619 open (OUT, ">$output_config")
3620 or dodie "Failed to write $output_config";
3621
3622 foreach my $config (@configs) {
3623 print OUT "$config\n";
3624 }
3625 close OUT;
3626}
3627
3628sub chomp_config {
3629 my ($config) = @_;
3630
3631 $config =~ s/CONFIG_//;
3632
3633 return $config;
3634}
3635
3636sub get_depends {
3637 my ($dep) = @_;
3638
3639 my $kconfig = chomp_config $dep;
3640
3641 $dep = $depends{"$kconfig"};
3642
3643 # the dep string we have saves the dependencies as they
3644 # were found, including expressions like ! && ||. We
3645 # want to split this out into just an array of configs.
3646
3647 my $valid = "A-Za-z_0-9";
3648
3649 my @configs;
3650
3651 while ($dep =~ /[$valid]/) {
3652
3653 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3654 my $conf = "CONFIG_" . $1;
3655
3656 $configs[$#configs + 1] = $conf;
3657
3658 $dep =~ s/^[^$valid]*[$valid]+//;
3659 } else {
3660 dodie "this should never happen";
3661 }
3662 }
3663
3664 return @configs;
3665}
3666
3667my %min_configs;
3668my %keep_configs;
3669my %save_configs;
3670my %processed_configs;
3671my %nochange_config;
3672
3673sub test_this_config {
3674 my ($config) = @_;
3675
3676 my $found;
3677
3678 # if we already processed this config, skip it
3679 if (defined($processed_configs{$config})) {
3680 return undef;
3681 }
3682 $processed_configs{$config} = 1;
3683
3684 # if this config failed during this round, skip it
3685 if (defined($nochange_config{$config})) {
3686 return undef;
3687 }
3688
3689 my $kconfig = chomp_config $config;
3690
3691 # Test dependencies first
3692 if (defined($depends{"$kconfig"})) {
3693 my @parents = get_depends $config;
3694 foreach my $parent (@parents) {
3695 # if the parent is in the min config, check it first
3696 next if (!defined($min_configs{$parent}));
3697 $found = test_this_config($parent);
3698 if (defined($found)) {
3699 return $found;
3700 }
3701 }
3702 }
3703
3704 # Remove this config from the list of configs
3705 # do a make olddefconfig and then read the resulting
3706 # .config to make sure it is missing the config that
3707 # we had before
3708 my %configs = %min_configs;
3709 delete $configs{$config};
3710 make_new_config ((values %configs), (values %keep_configs));
3711 make_oldconfig;
3712 undef %configs;
3713 assign_configs \%configs, $output_config;
3714
3715 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3716 return $config;
3717 }
3718
3719 doprint "disabling config $config did not change .config\n";
3720
3721 $nochange_config{$config} = 1;
3722
3723 return undef;
3724}
3725
3726sub make_min_config {
3727 my ($i) = @_;
3728
3729 my $type = $minconfig_type;
3730 if ($type ne "boot" && $type ne "test") {
3731 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3732 " make_min_config works only with 'boot' and 'test'\n" and return;
3733 }
3734
3735 if (!defined($output_minconfig)) {
3736 fail "OUTPUT_MIN_CONFIG not defined" and return;
3737 }
3738
3739 # If output_minconfig exists, and the start_minconfig
3740 # came from min_config, than ask if we should use
3741 # that instead.
3742 if (-f $output_minconfig && !$start_minconfig_defined) {
3743 print "$output_minconfig exists\n";
3744 if (!defined($use_output_minconfig)) {
3745 if (read_yn " Use it as minconfig?") {
3746 $start_minconfig = $output_minconfig;
3747 }
3748 } elsif ($use_output_minconfig > 0) {
3749 doprint "Using $output_minconfig as MIN_CONFIG\n";
3750 $start_minconfig = $output_minconfig;
3751 } else {
3752 doprint "Set to still use MIN_CONFIG as starting point\n";
3753 }
3754 }
3755
3756 if (!defined($start_minconfig)) {
3757 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3758 }
3759
3760 my $temp_config = "$tmpdir/temp_config";
3761
3762 # First things first. We build an allnoconfig to find
3763 # out what the defaults are that we can't touch.
3764 # Some are selections, but we really can't handle selections.
3765
3766 my $save_minconfig = $minconfig;
3767 undef $minconfig;
3768
3769 run_command "$make allnoconfig" or return 0;
3770
3771 read_depends;
3772
3773 process_config_ignore $output_config;
3774
3775 undef %save_configs;
3776 undef %min_configs;
3777
3778 if (defined($ignore_config)) {
3779 # make sure the file exists
3780 `touch $ignore_config`;
3781 assign_configs \%save_configs, $ignore_config;
3782 }
3783
3784 %keep_configs = %save_configs;
3785
3786 doprint "Load initial configs from $start_minconfig\n";
3787
3788 # Look at the current min configs, and save off all the
3789 # ones that were set via the allnoconfig
3790 assign_configs \%min_configs, $start_minconfig;
3791
3792 my @config_keys = keys %min_configs;
3793
3794 # All configs need a depcount
3795 foreach my $config (@config_keys) {
3796 my $kconfig = chomp_config $config;
3797 if (!defined $depcount{$kconfig}) {
3798 $depcount{$kconfig} = 0;
3799 }
3800 }
3801
3802 # Remove anything that was set by the make allnoconfig
3803 # we shouldn't need them as they get set for us anyway.
3804 foreach my $config (@config_keys) {
3805 # Remove anything in the ignore_config
3806 if (defined($keep_configs{$config})) {
3807 my $file = $ignore_config;
3808 $file =~ s,.*/(.*?)$,$1,;
3809 doprint "$config set by $file ... ignored\n";
3810 delete $min_configs{$config};
3811 next;
3812 }
3813 # But make sure the settings are the same. If a min config
3814 # sets a selection, we do not want to get rid of it if
3815 # it is not the same as what we have. Just move it into
3816 # the keep configs.
3817 if (defined($config_ignore{$config})) {
3818 if ($config_ignore{$config} ne $min_configs{$config}) {
3819 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3820 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3821 $keep_configs{$config} = $min_configs{$config};
3822 } else {
3823 doprint "$config set by allnoconfig ... ignored\n";
3824 }
3825 delete $min_configs{$config};
3826 }
3827 }
3828
3829 my $done = 0;
3830 my $take_two = 0;
3831
3832 while (!$done) {
3833
3834 my $config;
3835 my $found;
3836
3837 # Now disable each config one by one and do a make oldconfig
3838 # till we find a config that changes our list.
3839
3840 my @test_configs = keys %min_configs;
3841
3842 # Sort keys by who is most dependent on
3843 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3844 @test_configs ;
3845
3846 # Put configs that did not modify the config at the end.
3847 my $reset = 1;
3848 for (my $i = 0; $i < $#test_configs; $i++) {
3849 if (!defined($nochange_config{$test_configs[0]})) {
3850 $reset = 0;
3851 last;
3852 }
3853 # This config didn't change the .config last time.
3854 # Place it at the end
3855 my $config = shift @test_configs;
3856 push @test_configs, $config;
3857 }
3858
3859 # if every test config has failed to modify the .config file
3860 # in the past, then reset and start over.
3861 if ($reset) {
3862 undef %nochange_config;
3863 }
3864
3865 undef %processed_configs;
3866
3867 foreach my $config (@test_configs) {
3868
3869 $found = test_this_config $config;
3870
3871 last if (defined($found));
3872
3873 # oh well, try another config
3874 }
3875
3876 if (!defined($found)) {
3877 # we could have failed due to the nochange_config hash
3878 # reset and try again
3879 if (!$take_two) {
3880 undef %nochange_config;
3881 $take_two = 1;
3882 next;
3883 }
3884 doprint "No more configs found that we can disable\n";
3885 $done = 1;
3886 last;
3887 }
3888 $take_two = 0;
3889
3890 $config = $found;
3891
3892 doprint "Test with $config disabled\n";
3893
3894 # set in_bisect to keep build and monitor from dieing
3895 $in_bisect = 1;
3896
3897 my $failed = 0;
3898 build "oldconfig" or $failed = 1;
3899 if (!$failed) {
3900 start_monitor_and_install or $failed = 1;
3901
3902 if ($type eq "test" && !$failed) {
3903 do_run_test or $failed = 1;
3904 }
3905
3906 end_monitor;
3907 }
3908
3909 $in_bisect = 0;
3910
3911 if ($failed) {
3912 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3913 # this config is needed, add it to the ignore list.
3914 $keep_configs{$config} = $min_configs{$config};
3915 $save_configs{$config} = $min_configs{$config};
3916 delete $min_configs{$config};
3917
3918 # update new ignore configs
3919 if (defined($ignore_config)) {
3920 open (OUT, ">$temp_config")
3921 or dodie "Can't write to $temp_config";
3922 foreach my $config (keys %save_configs) {
3923 print OUT "$save_configs{$config}\n";
3924 }
3925 close OUT;
3926 run_command "mv $temp_config $ignore_config" or
3927 dodie "failed to copy update to $ignore_config";
3928 }
3929
3930 } else {
3931 # We booted without this config, remove it from the minconfigs.
3932 doprint "$config is not needed, disabling\n";
3933
3934 delete $min_configs{$config};
3935
3936 # Also disable anything that is not enabled in this config
3937 my %configs;
3938 assign_configs \%configs, $output_config;
3939 my @config_keys = keys %min_configs;
3940 foreach my $config (@config_keys) {
3941 if (!defined($configs{$config})) {
3942 doprint "$config is not set, disabling\n";
3943 delete $min_configs{$config};
3944 }
3945 }
3946
3947 # Save off all the current mandatory configs
3948 open (OUT, ">$temp_config")
3949 or dodie "Can't write to $temp_config";
3950 foreach my $config (keys %keep_configs) {
3951 print OUT "$keep_configs{$config}\n";
3952 }
3953 foreach my $config (keys %min_configs) {
3954 print OUT "$min_configs{$config}\n";
3955 }
3956 close OUT;
3957
3958 run_command "mv $temp_config $output_minconfig" or
3959 dodie "failed to copy update to $output_minconfig";
3960 }
3961
3962 doprint "Reboot and wait $sleep_time seconds\n";
3963 reboot_to_good $sleep_time;
3964 }
3965
3966 success $i;
3967 return 1;
3968}
3969
3970sub make_warnings_file {
3971 my ($i) = @_;
3972
3973 if (!defined($warnings_file)) {
3974 dodie "Must define WARNINGS_FILE for make_warnings_file test";
3975 }
3976
3977 if ($build_type eq "nobuild") {
3978 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
3979 }
3980
3981 build $build_type or dodie "Failed to build";
3982
3983 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
3984
3985 open(IN, $buildlog) or dodie "Can't open $buildlog";
3986 while (<IN>) {
3987
3988 # Some compilers use UTF-8 extended for quotes
3989 # for distcc heterogeneous systems, this causes issues
3990 s/$utf8_quote/'/g;
3991
3992 if (/$check_build_re/) {
3993 print OUT;
3994 }
3995 }
3996 close(IN);
3997
3998 close(OUT);
3999
4000 success $i;
4001}
4002
4003$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4004
4005if ($#ARGV == 0) {
4006 $ktest_config = $ARGV[0];
4007 if (! -f $ktest_config) {
4008 print "$ktest_config does not exist.\n";
4009 if (!read_yn "Create it?") {
4010 exit 0;
4011 }
4012 }
4013}
4014
4015if (! -f $ktest_config) {
4016 $newconfig = 1;
4017 get_test_case;
4018 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4019 print OUT << "EOF"
4020# Generated by ktest.pl
4021#
4022
4023# PWD is a ktest.pl variable that will result in the process working
4024# directory that ktest.pl is executed in.
4025
4026# THIS_DIR is automatically assigned the PWD of the path that generated
4027# the config file. It is best to use this variable when assigning other
4028# directory paths within this directory. This allows you to easily
4029# move the test cases to other locations or to other machines.
4030#
4031THIS_DIR := $variable{"PWD"}
4032
4033# Define each test with TEST_START
4034# The config options below it will override the defaults
4035TEST_START
4036TEST_TYPE = $default{"TEST_TYPE"}
4037
4038DEFAULTS
4039EOF
4040;
4041 close(OUT);
4042}
4043read_config $ktest_config;
4044
4045if (defined($opt{"LOG_FILE"})) {
4046 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4047}
4048
4049# Append any configs entered in manually to the config file.
4050my @new_configs = keys %entered_configs;
4051if ($#new_configs >= 0) {
4052 print "\nAppending entered in configs to $ktest_config\n";
4053 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4054 foreach my $config (@new_configs) {
4055 print OUT "$config = $entered_configs{$config}\n";
4056 $opt{$config} = process_variables($entered_configs{$config});
4057 }
4058}
4059
4060if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4061 unlink $opt{"LOG_FILE"};
4062}
4063
4064doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4065
4066for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4067
4068 if (!$i) {
4069 doprint "DEFAULT OPTIONS:\n";
4070 } else {
4071 doprint "\nTEST $i OPTIONS";
4072 if (defined($repeat_tests{$i})) {
4073 $repeat = $repeat_tests{$i};
4074 doprint " ITERATE $repeat";
4075 }
4076 doprint "\n";
4077 }
4078
4079 foreach my $option (sort keys %opt) {
4080
4081 if ($option =~ /\[(\d+)\]$/) {
4082 next if ($i != $1);
4083 } else {
4084 next if ($i);
4085 }
4086
4087 doprint "$option = $opt{$option}\n";
4088 }
4089}
4090
4091sub option_defined {
4092 my ($option) = @_;
4093
4094 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4095 return 1;
4096 }
4097
4098 return 0;
4099}
4100
4101sub __set_test_option {
4102 my ($name, $i) = @_;
4103
4104 my $option = "$name\[$i\]";
4105
4106 if (option_defined($option)) {
4107 return $opt{$option};
4108 }
4109
4110 foreach my $test (keys %repeat_tests) {
4111 if ($i >= $test &&
4112 $i < $test + $repeat_tests{$test}) {
4113 $option = "$name\[$test\]";
4114 if (option_defined($option)) {
4115 return $opt{$option};
4116 }
4117 }
4118 }
4119
4120 if (option_defined($name)) {
4121 return $opt{$name};
4122 }
4123
4124 return undef;
4125}
4126
4127sub set_test_option {
4128 my ($name, $i) = @_;
4129
4130 my $option = __set_test_option($name, $i);
4131 return $option if (!defined($option));
4132
4133 return eval_option($name, $option, $i);
4134}
4135
4136sub find_mailer {
4137 my ($mailer) = @_;
4138
4139 my @paths = split /:/, $ENV{PATH};
4140
4141 # sendmail is usually in /usr/sbin
4142 $paths[$#paths + 1] = "/usr/sbin";
4143
4144 foreach my $path (@paths) {
4145 if (-x "$path/$mailer") {
4146 return $path;
4147 }
4148 }
4149
4150 return undef;
4151}
4152
4153sub do_send_mail {
4154 my ($subject, $message) = @_;
4155
4156 if (!defined($mail_path)) {
4157 # find the mailer
4158 $mail_path = find_mailer $mailer;
4159 if (!defined($mail_path)) {
4160 die "\nCan not find $mailer in PATH\n";
4161 }
4162 }
4163
4164 if (!defined($mail_command)) {
4165 if ($mailer eq "mail" || $mailer eq "mailx") {
4166 $mail_command = "\$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO <<< \'\$MESSAGE\'";
4167 } elsif ($mailer eq "sendmail" ) {
4168 $mail_command = "echo \'Subject: \$SUBJECT\n\n\$MESSAGE\' | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4169 } else {
4170 die "\nYour mailer: $mailer is not supported.\n";
4171 }
4172 }
4173
4174 $mail_command =~ s/\$MAILER/$mailer/g;
4175 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4176 $mail_command =~ s/\$MAILTO/$mailto/g;
4177 $mail_command =~ s/\$SUBJECT/$subject/g;
4178 $mail_command =~ s/\$MESSAGE/$message/g;
4179
4180 run_command $mail_command;
4181}
4182
4183sub send_email {
4184
4185 if (defined($mailto)) {
4186 if (!defined($mailer)) {
4187 doprint "No email sent: email or mailer not specified in config.\n";
4188 return;
4189 }
4190 do_send_mail @_;
4191 }
4192}
4193
4194sub cancel_test {
4195 if ($email_when_canceled) {
4196 send_email("KTEST: Your [$test_type] test was cancelled",
4197 "Your test started at $script_start_time was cancelled: sig int");
4198 }
4199 die "\nCaught Sig Int, test interrupted: $!\n"
4200}
4201
4202$SIG{INT} = qw(cancel_test);
4203
4204# First we need to do is the builds
4205for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4206
4207 # Do not reboot on failing test options
4208 $no_reboot = 1;
4209 $reboot_success = 0;
4210
4211 $have_version = 0;
4212
4213 $iteration = $i;
4214
4215 $build_time = 0;
4216 $install_time = 0;
4217 $reboot_time = 0;
4218 $test_time = 0;
4219
4220 undef %force_config;
4221
4222 my $makecmd = set_test_option("MAKE_CMD", $i);
4223
4224 $outputdir = set_test_option("OUTPUT_DIR", $i);
4225 $builddir = set_test_option("BUILD_DIR", $i);
4226
4227 chdir $builddir || dodie "can't change directory to $builddir";
4228
4229 if (!-d $outputdir) {
4230 mkpath($outputdir) or
4231 dodie "can't create $outputdir";
4232 }
4233
4234 $make = "$makecmd O=$outputdir";
4235
4236 # Load all the options into their mapped variable names
4237 foreach my $opt (keys %option_map) {
4238 ${$option_map{$opt}} = set_test_option($opt, $i);
4239 }
4240
4241 $start_minconfig_defined = 1;
4242
4243 # The first test may override the PRE_KTEST option
4244 if ($i == 1) {
4245 if (defined($pre_ktest)) {
4246 doprint "\n";
4247 run_command $pre_ktest;
4248 }
4249 if ($email_when_started) {
4250 send_email("KTEST: Your [$test_type] test was started",
4251 "Your test was started on $script_start_time");
4252 }
4253 }
4254
4255 # Any test can override the POST_KTEST option
4256 # The last test takes precedence.
4257 if (defined($post_ktest)) {
4258 $final_post_ktest = $post_ktest;
4259 }
4260
4261 if (!defined($start_minconfig)) {
4262 $start_minconfig_defined = 0;
4263 $start_minconfig = $minconfig;
4264 }
4265
4266 if (!-d $tmpdir) {
4267 mkpath($tmpdir) or
4268 dodie "can't create $tmpdir";
4269 }
4270
4271 $ENV{"SSH_USER"} = $ssh_user;
4272 $ENV{"MACHINE"} = $machine;
4273
4274 $buildlog = "$tmpdir/buildlog-$machine";
4275 $testlog = "$tmpdir/testlog-$machine";
4276 $dmesg = "$tmpdir/dmesg-$machine";
4277 $output_config = "$outputdir/.config";
4278
4279 if (!$buildonly) {
4280 $target = "$ssh_user\@$machine";
4281 if ($reboot_type eq "grub") {
4282 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4283 } elsif ($reboot_type eq "grub2") {
4284 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4285 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4286 } elsif ($reboot_type eq "syslinux") {
4287 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4288 }
4289 }
4290
4291 my $run_type = $build_type;
4292 if ($test_type eq "patchcheck") {
4293 $run_type = $patchcheck_type;
4294 } elsif ($test_type eq "bisect") {
4295 $run_type = $bisect_type;
4296 } elsif ($test_type eq "config_bisect") {
4297 $run_type = $config_bisect_type;
4298 } elsif ($test_type eq "make_min_config") {
4299 $run_type = "";
4300 } elsif ($test_type eq "make_warnings_file") {
4301 $run_type = "";
4302 }
4303
4304 # mistake in config file?
4305 if (!defined($run_type)) {
4306 $run_type = "ERROR";
4307 }
4308
4309 my $installme = "";
4310 $installme = " no_install" if ($no_install);
4311
4312 my $name = "";
4313
4314 if (defined($test_name)) {
4315 $name = " ($test_name)";
4316 }
4317
4318 doprint "\n\n";
4319 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4320
4321 if (defined($pre_test)) {
4322 run_command $pre_test;
4323 }
4324
4325 unlink $dmesg;
4326 unlink $buildlog;
4327 unlink $testlog;
4328
4329 if (defined($addconfig)) {
4330 my $min = $minconfig;
4331 if (!defined($minconfig)) {
4332 $min = "";
4333 }
4334 run_command "cat $addconfig $min > $tmpdir/add_config" or
4335 dodie "Failed to create temp config";
4336 $minconfig = "$tmpdir/add_config";
4337 }
4338
4339 if (defined($checkout)) {
4340 run_command "git checkout $checkout" or
4341 dodie "failed to checkout $checkout";
4342 }
4343
4344 $no_reboot = 0;
4345
4346 # A test may opt to not reboot the box
4347 if ($reboot_on_success) {
4348 $reboot_success = 1;
4349 }
4350
4351 if ($test_type eq "bisect") {
4352 bisect $i;
4353 next;
4354 } elsif ($test_type eq "config_bisect") {
4355 config_bisect $i;
4356 next;
4357 } elsif ($test_type eq "patchcheck") {
4358 patchcheck $i;
4359 next;
4360 } elsif ($test_type eq "make_min_config") {
4361 make_min_config $i;
4362 next;
4363 } elsif ($test_type eq "make_warnings_file") {
4364 $no_reboot = 1;
4365 make_warnings_file $i;
4366 next;
4367 }
4368
4369 if ($build_type ne "nobuild") {
4370 build $build_type or next;
4371 check_buildlog or next;
4372 }
4373
4374 if ($test_type eq "install") {
4375 get_version;
4376 install;
4377 success $i;
4378 next;
4379 }
4380
4381 if ($test_type ne "build") {
4382 my $failed = 0;
4383 start_monitor_and_install or $failed = 1;
4384
4385 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4386 do_run_test or $failed = 1;
4387 }
4388 end_monitor;
4389 if ($failed) {
4390 print_times;
4391 next;
4392 }
4393 }
4394
4395 print_times;
4396
4397 success $i;
4398}
4399
4400if (defined($final_post_ktest)) {
4401 run_command $final_post_ktest;
4402}
4403
4404if ($opt{"POWEROFF_ON_SUCCESS"}) {
4405 halt;
4406} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4407 reboot_to_good;
4408} elsif (defined($switch_to_good)) {
4409 # still need to get to the good kernel
4410 run_command $switch_to_good;
4411}
4412
4413
4414doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4415
4416if ($email_when_finished) {
4417 send_email("KTEST: Your [$test_type] test has finished!",
4418 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4419}
4420exit 0;