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