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