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1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14use IO::Handle;
15
16my $VERSION = "0.2";
17
18$| = 1;
19
20my %opt;
21my %repeat_tests;
22my %repeats;
23my %evals;
24
25#default opts
26my %default = (
27 "MAILER" => "sendmail", # default mailer
28 "EMAIL_ON_ERROR" => 1,
29 "EMAIL_WHEN_FINISHED" => 1,
30 "EMAIL_WHEN_CANCELED" => 0,
31 "EMAIL_WHEN_STARTED" => 0,
32 "NUM_TESTS" => 1,
33 "TEST_TYPE" => "build",
34 "BUILD_TYPE" => "oldconfig",
35 "MAKE_CMD" => "make",
36 "CLOSE_CONSOLE_SIGNAL" => "INT",
37 "TIMEOUT" => 120,
38 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
39 "SLEEP_TIME" => 60, # sleep time between tests
40 "BUILD_NOCLEAN" => 0,
41 "REBOOT_ON_ERROR" => 0,
42 "POWEROFF_ON_ERROR" => 0,
43 "REBOOT_ON_SUCCESS" => 1,
44 "POWEROFF_ON_SUCCESS" => 0,
45 "BUILD_OPTIONS" => "",
46 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
47 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
48 "CLEAR_LOG" => 0,
49 "BISECT_MANUAL" => 0,
50 "BISECT_SKIP" => 1,
51 "BISECT_TRIES" => 1,
52 "MIN_CONFIG_TYPE" => "boot",
53 "SUCCESS_LINE" => "login:",
54 "DETECT_TRIPLE_FAULT" => 1,
55 "NO_INSTALL" => 0,
56 "BOOTED_TIMEOUT" => 1,
57 "DIE_ON_FAILURE" => 1,
58 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
59 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
60 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
61 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
62 "REBOOT_RETURN_CODE" => 255,
63 "STOP_AFTER_SUCCESS" => 10,
64 "STOP_AFTER_FAILURE" => 60,
65 "STOP_TEST_AFTER" => 600,
66 "MAX_MONITOR_WAIT" => 1800,
67 "GRUB_REBOOT" => "grub2-reboot",
68 "GRUB_BLS_GET" => "grubby --info=ALL",
69 "SYSLINUX" => "extlinux",
70 "SYSLINUX_PATH" => "/boot/extlinux",
71 "CONNECT_TIMEOUT" => 25,
72
73# required, and we will ask users if they don't have them but we keep the default
74# value something that is common.
75 "REBOOT_TYPE" => "grub",
76 "LOCALVERSION" => "-test",
77 "SSH_USER" => "root",
78 "BUILD_TARGET" => "arch/x86/boot/bzImage",
79 "TARGET_IMAGE" => "/boot/vmlinuz-test",
80
81 "LOG_FILE" => undef,
82 "IGNORE_UNUSED" => 0,
83);
84
85my $test_log_start = 0;
86
87my $ktest_config = "ktest.conf";
88my $version;
89my $have_version = 0;
90my $machine;
91my $last_machine;
92my $ssh_user;
93my $tmpdir;
94my $builddir;
95my $outputdir;
96my $output_config;
97my $test_type;
98my $build_type;
99my $build_options;
100my $final_post_ktest;
101my $pre_ktest;
102my $post_ktest;
103my $pre_test;
104my $pre_test_die;
105my $post_test;
106my $pre_build;
107my $post_build;
108my $pre_build_die;
109my $post_build_die;
110my $reboot_type;
111my $reboot_script;
112my $power_cycle;
113my $reboot;
114my $reboot_return_code;
115my $reboot_on_error;
116my $switch_to_good;
117my $switch_to_test;
118my $poweroff_on_error;
119my $reboot_on_success;
120my $die_on_failure;
121my $powercycle_after_reboot;
122my $poweroff_after_halt;
123my $max_monitor_wait;
124my $ssh_exec;
125my $scp_to_target;
126my $scp_to_target_install;
127my $power_off;
128my $grub_menu;
129my $last_grub_menu;
130my $grub_file;
131my $grub_number;
132my $grub_reboot;
133my $grub_bls_get;
134my $syslinux;
135my $syslinux_path;
136my $syslinux_label;
137my $target;
138my $make;
139my $pre_install;
140my $post_install;
141my $no_install;
142my $noclean;
143my $minconfig;
144my $start_minconfig;
145my $start_minconfig_defined;
146my $output_minconfig;
147my $minconfig_type;
148my $use_output_minconfig;
149my $warnings_file;
150my $ignore_config;
151my $ignore_errors;
152my $addconfig;
153my $in_bisect = 0;
154my $bisect_bad_commit = "";
155my $reverse_bisect;
156my $bisect_manual;
157my $bisect_skip;
158my $bisect_tries;
159my $config_bisect_good;
160my $bisect_ret_good;
161my $bisect_ret_bad;
162my $bisect_ret_skip;
163my $bisect_ret_abort;
164my $bisect_ret_default;
165my $in_patchcheck = 0;
166my $run_test;
167my $buildlog;
168my $testlog;
169my $dmesg;
170my $monitor_fp;
171my $monitor_pid;
172my $monitor_cnt = 0;
173my $sleep_time;
174my $bisect_sleep_time;
175my $patchcheck_sleep_time;
176my $ignore_warnings;
177my $store_failures;
178my $store_successes;
179my $test_name;
180my $timeout;
181my $connect_timeout;
182my $config_bisect_exec;
183my $booted_timeout;
184my $detect_triplefault;
185my $console;
186my $close_console_signal;
187my $reboot_success_line;
188my $success_line;
189my $stop_after_success;
190my $stop_after_failure;
191my $stop_test_after;
192my $build_target;
193my $target_image;
194my $checkout;
195my $localversion;
196my $iteration = 0;
197my $successes = 0;
198my $stty_orig;
199my $run_command_status = 0;
200
201my $bisect_good;
202my $bisect_bad;
203my $bisect_type;
204my $bisect_start;
205my $bisect_replay;
206my $bisect_files;
207my $bisect_reverse;
208my $bisect_check;
209
210my $config_bisect;
211my $config_bisect_type;
212my $config_bisect_check;
213
214my $patchcheck_type;
215my $patchcheck_start;
216my $patchcheck_cherry;
217my $patchcheck_end;
218
219my $build_time;
220my $install_time;
221my $reboot_time;
222my $test_time;
223
224my $pwd;
225my $dirname = $FindBin::Bin;
226
227my $mailto;
228my $mailer;
229my $mail_path;
230my $mail_max_size;
231my $mail_command;
232my $email_on_error;
233my $email_when_finished;
234my $email_when_started;
235my $email_when_canceled;
236
237my $script_start_time = localtime();
238
239# set when a test is something other that just building or install
240# which would require more options.
241my $buildonly = 1;
242
243# tell build not to worry about warnings, even when WARNINGS_FILE is set
244my $warnings_ok = 0;
245
246# set when creating a new config
247my $newconfig = 0;
248
249my %entered_configs;
250my %config_help;
251my %variable;
252
253# force_config is the list of configs that we force enabled (or disabled)
254# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
255my %force_config;
256
257# do not force reboots on config problems
258my $no_reboot = 1;
259
260# reboot on success
261my $reboot_success = 0;
262
263my %option_map = (
264 "MAILTO" => \$mailto,
265 "MAILER" => \$mailer,
266 "MAIL_PATH" => \$mail_path,
267 "MAIL_MAX_SIZE" => \$mail_max_size,
268 "MAIL_COMMAND" => \$mail_command,
269 "EMAIL_ON_ERROR" => \$email_on_error,
270 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
271 "EMAIL_WHEN_STARTED" => \$email_when_started,
272 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
273 "MACHINE" => \$machine,
274 "SSH_USER" => \$ssh_user,
275 "TMP_DIR" => \$tmpdir,
276 "OUTPUT_DIR" => \$outputdir,
277 "BUILD_DIR" => \$builddir,
278 "TEST_TYPE" => \$test_type,
279 "PRE_KTEST" => \$pre_ktest,
280 "POST_KTEST" => \$post_ktest,
281 "PRE_TEST" => \$pre_test,
282 "PRE_TEST_DIE" => \$pre_test_die,
283 "POST_TEST" => \$post_test,
284 "BUILD_TYPE" => \$build_type,
285 "BUILD_OPTIONS" => \$build_options,
286 "PRE_BUILD" => \$pre_build,
287 "POST_BUILD" => \$post_build,
288 "PRE_BUILD_DIE" => \$pre_build_die,
289 "POST_BUILD_DIE" => \$post_build_die,
290 "POWER_CYCLE" => \$power_cycle,
291 "REBOOT" => \$reboot,
292 "REBOOT_RETURN_CODE" => \$reboot_return_code,
293 "BUILD_NOCLEAN" => \$noclean,
294 "MIN_CONFIG" => \$minconfig,
295 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
296 "START_MIN_CONFIG" => \$start_minconfig,
297 "MIN_CONFIG_TYPE" => \$minconfig_type,
298 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
299 "WARNINGS_FILE" => \$warnings_file,
300 "IGNORE_CONFIG" => \$ignore_config,
301 "TEST" => \$run_test,
302 "ADD_CONFIG" => \$addconfig,
303 "REBOOT_TYPE" => \$reboot_type,
304 "GRUB_MENU" => \$grub_menu,
305 "GRUB_FILE" => \$grub_file,
306 "GRUB_REBOOT" => \$grub_reboot,
307 "GRUB_BLS_GET" => \$grub_bls_get,
308 "SYSLINUX" => \$syslinux,
309 "SYSLINUX_PATH" => \$syslinux_path,
310 "SYSLINUX_LABEL" => \$syslinux_label,
311 "PRE_INSTALL" => \$pre_install,
312 "POST_INSTALL" => \$post_install,
313 "NO_INSTALL" => \$no_install,
314 "REBOOT_SCRIPT" => \$reboot_script,
315 "REBOOT_ON_ERROR" => \$reboot_on_error,
316 "SWITCH_TO_GOOD" => \$switch_to_good,
317 "SWITCH_TO_TEST" => \$switch_to_test,
318 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
319 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
320 "DIE_ON_FAILURE" => \$die_on_failure,
321 "POWER_OFF" => \$power_off,
322 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
323 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
324 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
325 "SLEEP_TIME" => \$sleep_time,
326 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
327 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
328 "IGNORE_WARNINGS" => \$ignore_warnings,
329 "IGNORE_ERRORS" => \$ignore_errors,
330 "BISECT_MANUAL" => \$bisect_manual,
331 "BISECT_SKIP" => \$bisect_skip,
332 "BISECT_TRIES" => \$bisect_tries,
333 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
334 "BISECT_RET_GOOD" => \$bisect_ret_good,
335 "BISECT_RET_BAD" => \$bisect_ret_bad,
336 "BISECT_RET_SKIP" => \$bisect_ret_skip,
337 "BISECT_RET_ABORT" => \$bisect_ret_abort,
338 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
339 "STORE_FAILURES" => \$store_failures,
340 "STORE_SUCCESSES" => \$store_successes,
341 "TEST_NAME" => \$test_name,
342 "TIMEOUT" => \$timeout,
343 "CONNECT_TIMEOUT" => \$connect_timeout,
344 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
345 "BOOTED_TIMEOUT" => \$booted_timeout,
346 "CONSOLE" => \$console,
347 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
348 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
349 "SUCCESS_LINE" => \$success_line,
350 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
351 "STOP_AFTER_SUCCESS" => \$stop_after_success,
352 "STOP_AFTER_FAILURE" => \$stop_after_failure,
353 "STOP_TEST_AFTER" => \$stop_test_after,
354 "BUILD_TARGET" => \$build_target,
355 "SSH_EXEC" => \$ssh_exec,
356 "SCP_TO_TARGET" => \$scp_to_target,
357 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
358 "CHECKOUT" => \$checkout,
359 "TARGET_IMAGE" => \$target_image,
360 "LOCALVERSION" => \$localversion,
361
362 "BISECT_GOOD" => \$bisect_good,
363 "BISECT_BAD" => \$bisect_bad,
364 "BISECT_TYPE" => \$bisect_type,
365 "BISECT_START" => \$bisect_start,
366 "BISECT_REPLAY" => \$bisect_replay,
367 "BISECT_FILES" => \$bisect_files,
368 "BISECT_REVERSE" => \$bisect_reverse,
369 "BISECT_CHECK" => \$bisect_check,
370
371 "CONFIG_BISECT" => \$config_bisect,
372 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
373 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
374
375 "PATCHCHECK_TYPE" => \$patchcheck_type,
376 "PATCHCHECK_START" => \$patchcheck_start,
377 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
378 "PATCHCHECK_END" => \$patchcheck_end,
379);
380
381# Options may be used by other options, record them.
382my %used_options;
383
384# default variables that can be used
385chomp ($variable{"PWD"} = `pwd`);
386$pwd = $variable{"PWD"};
387
388$config_help{"MACHINE"} = << "EOF"
389 The machine hostname that you will test.
390 For build only tests, it is still needed to differentiate log files.
391EOF
392 ;
393$config_help{"SSH_USER"} = << "EOF"
394 The box is expected to have ssh on normal bootup, provide the user
395 (most likely root, since you need privileged operations)
396EOF
397 ;
398$config_help{"BUILD_DIR"} = << "EOF"
399 The directory that contains the Linux source code (full path).
400 You can use \${PWD} that will be the path where ktest.pl is run, or use
401 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
402EOF
403 ;
404$config_help{"OUTPUT_DIR"} = << "EOF"
405 The directory that the objects will be built (full path).
406 (can not be same as BUILD_DIR)
407 You can use \${PWD} that will be the path where ktest.pl is run, or use
408 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
409EOF
410 ;
411$config_help{"BUILD_TARGET"} = << "EOF"
412 The location of the compiled file to copy to the target.
413 (relative to OUTPUT_DIR)
414EOF
415 ;
416$config_help{"BUILD_OPTIONS"} = << "EOF"
417 Options to add to \"make\" when building.
418 i.e. -j20
419EOF
420 ;
421$config_help{"TARGET_IMAGE"} = << "EOF"
422 The place to put your image on the test machine.
423EOF
424 ;
425$config_help{"POWER_CYCLE"} = << "EOF"
426 A script or command to reboot the box.
427
428 Here is a digital loggers power switch example
429 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
430
431 Here is an example to reboot a virtual box on the current host
432 with the name "Guest".
433 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
434EOF
435 ;
436$config_help{"CONSOLE"} = << "EOF"
437 The script or command that reads the console
438
439 If you use ttywatch server, something like the following would work.
440CONSOLE = nc -d localhost 3001
441
442 For a virtual machine with guest name "Guest".
443CONSOLE = virsh console Guest
444EOF
445 ;
446$config_help{"LOCALVERSION"} = << "EOF"
447 Required version ending to differentiate the test
448 from other linux builds on the system.
449EOF
450 ;
451$config_help{"REBOOT_TYPE"} = << "EOF"
452 Way to reboot the box to the test kernel.
453 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
454
455 If you specify grub, it will assume grub version 1
456 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
457 and select that target to reboot to the kernel. If this is not
458 your setup, then specify "script" and have a command or script
459 specified in REBOOT_SCRIPT to boot to the target.
460
461 The entry in /boot/grub/menu.lst must be entered in manually.
462 The test will not modify that file.
463
464 If you specify grub2, then you also need to specify both \$GRUB_MENU
465 and \$GRUB_FILE.
466
467 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
468
469 If you specify syslinux, then you may use SYSLINUX to define the syslinux
470 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
471 the syslinux install (defaults to /boot/extlinux). But you have to specify
472 SYSLINUX_LABEL to define the label to boot to for the test kernel.
473EOF
474 ;
475$config_help{"GRUB_MENU"} = << "EOF"
476 The grub title name for the test kernel to boot
477 (Only mandatory if REBOOT_TYPE = grub or grub2)
478
479 Note, ktest.pl will not update the grub menu.lst, you need to
480 manually add an option for the test. ktest.pl will search
481 the grub menu.lst for this option to find what kernel to
482 reboot into.
483
484 For example, if in the /boot/grub/menu.lst the test kernel title has:
485 title Test Kernel
486 kernel vmlinuz-test
487 GRUB_MENU = Test Kernel
488
489 For grub2, a search of \$GRUB_FILE is performed for the lines
490 that begin with "menuentry". It will not detect submenus. The
491 menu must be a non-nested menu. Add the quotes used in the menu
492 to guarantee your selection, as the first menuentry with the content
493 of \$GRUB_MENU that is found will be used.
494
495 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
496 command for the lines that begin with "title".
497EOF
498 ;
499$config_help{"GRUB_FILE"} = << "EOF"
500 If grub2 is used, the full path for the grub.cfg file is placed
501 here. Use something like /boot/grub2/grub.cfg to search.
502EOF
503 ;
504$config_help{"SYSLINUX_LABEL"} = << "EOF"
505 If syslinux is used, the label that boots the target kernel must
506 be specified with SYSLINUX_LABEL.
507EOF
508 ;
509$config_help{"REBOOT_SCRIPT"} = << "EOF"
510 A script to reboot the target into the test kernel
511 (Only mandatory if REBOOT_TYPE = script)
512EOF
513 ;
514
515# used with process_expression()
516my $d = 0;
517
518# defined before get_test_name()
519my $in_die = 0;
520
521# defined before process_warning_line()
522my $check_build_re = ".*:.*(warning|error|Error):.*";
523my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
524
525# defined before child_finished()
526my $child_done;
527
528# config_ignore holds the configs that were set (or unset) for
529# a good config and we will ignore these configs for the rest
530# of a config bisect. These configs stay as they were.
531my %config_ignore;
532
533# config_set holds what all configs were set as.
534my %config_set;
535
536# config_off holds the set of configs that the bad config had disabled.
537# We need to record them and set them in the .config when running
538# olddefconfig, because olddefconfig keeps the defaults.
539my %config_off;
540
541# config_off_tmp holds a set of configs to turn off for now
542my @config_off_tmp;
543
544# config_list is the set of configs that are being tested
545my %config_list;
546my %null_config;
547
548my %dependency;
549
550# found above run_config_bisect()
551my $pass = 1;
552
553# found above add_dep()
554
555my %depends;
556my %depcount;
557my $iflevel = 0;
558my @ifdeps;
559
560# prevent recursion
561my %read_kconfigs;
562
563# found above test_this_config()
564my %min_configs;
565my %keep_configs;
566my %save_configs;
567my %processed_configs;
568my %nochange_config;
569
570#
571# These are first defined here, main function later on
572#
573sub run_command;
574sub start_monitor;
575sub end_monitor;
576sub wait_for_monitor;
577
578sub _logit {
579 if (defined($opt{"LOG_FILE"})) {
580 print LOG @_;
581 }
582}
583
584sub logit {
585 if (defined($opt{"LOG_FILE"})) {
586 _logit @_;
587 } else {
588 print @_;
589 }
590}
591
592sub doprint {
593 print @_;
594 _logit @_;
595}
596
597sub read_prompt {
598 my ($cancel, $prompt) = @_;
599
600 my $ans;
601
602 for (;;) {
603 if ($cancel) {
604 print "$prompt [y/n/C] ";
605 } else {
606 print "$prompt [Y/n] ";
607 }
608 $ans = <STDIN>;
609 chomp $ans;
610 if ($ans =~ /^\s*$/) {
611 if ($cancel) {
612 $ans = "c";
613 } else {
614 $ans = "y";
615 }
616 }
617 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
618 if ($cancel) {
619 last if ($ans =~ /^c$/i);
620 print "Please answer either 'y', 'n' or 'c'.\n";
621 } else {
622 print "Please answer either 'y' or 'n'.\n";
623 }
624 }
625 if ($ans =~ /^c/i) {
626 exit;
627 }
628 if ($ans !~ /^y$/i) {
629 return 0;
630 }
631 return 1;
632}
633
634sub read_yn {
635 my ($prompt) = @_;
636
637 return read_prompt 0, $prompt;
638}
639
640sub read_ync {
641 my ($prompt) = @_;
642
643 return read_prompt 1, $prompt;
644}
645
646sub get_mandatory_config {
647 my ($config) = @_;
648 my $ans;
649
650 return if (defined($opt{$config}));
651
652 if (defined($config_help{$config})) {
653 print "\n";
654 print $config_help{$config};
655 }
656
657 for (;;) {
658 print "$config = ";
659 if (defined($default{$config}) && length($default{$config})) {
660 print "\[$default{$config}\] ";
661 }
662 $ans = <STDIN>;
663 $ans =~ s/^\s*(.*\S)\s*$/$1/;
664 if ($ans =~ /^\s*$/) {
665 if ($default{$config}) {
666 $ans = $default{$config};
667 } else {
668 print "Your answer can not be blank\n";
669 next;
670 }
671 }
672 $entered_configs{$config} = ${ans};
673 last;
674 }
675}
676
677sub show_time {
678 my ($time) = @_;
679
680 my $hours = 0;
681 my $minutes = 0;
682
683 if ($time > 3600) {
684 $hours = int($time / 3600);
685 $time -= $hours * 3600;
686 }
687 if ($time > 60) {
688 $minutes = int($time / 60);
689 $time -= $minutes * 60;
690 }
691
692 if ($hours > 0) {
693 doprint "$hours hour";
694 doprint "s" if ($hours > 1);
695 doprint " ";
696 }
697
698 if ($minutes > 0) {
699 doprint "$minutes minute";
700 doprint "s" if ($minutes > 1);
701 doprint " ";
702 }
703
704 doprint "$time second";
705 doprint "s" if ($time != 1);
706}
707
708sub print_times {
709 doprint "\n";
710 if ($build_time) {
711 doprint "Build time: ";
712 show_time($build_time);
713 doprint "\n";
714 }
715 if ($install_time) {
716 doprint "Install time: ";
717 show_time($install_time);
718 doprint "\n";
719 }
720 if ($reboot_time) {
721 doprint "Reboot time: ";
722 show_time($reboot_time);
723 doprint "\n";
724 }
725 if ($test_time) {
726 doprint "Test time: ";
727 show_time($test_time);
728 doprint "\n";
729 }
730 # reset for iterations like bisect
731 $build_time = 0;
732 $install_time = 0;
733 $reboot_time = 0;
734 $test_time = 0;
735}
736
737sub get_mandatory_configs {
738 get_mandatory_config("MACHINE");
739 get_mandatory_config("BUILD_DIR");
740 get_mandatory_config("OUTPUT_DIR");
741
742 if ($newconfig) {
743 get_mandatory_config("BUILD_OPTIONS");
744 }
745
746 # options required for other than just building a kernel
747 if (!$buildonly) {
748 get_mandatory_config("POWER_CYCLE");
749 get_mandatory_config("CONSOLE");
750 }
751
752 # options required for install and more
753 if ($buildonly != 1) {
754 get_mandatory_config("SSH_USER");
755 get_mandatory_config("BUILD_TARGET");
756 get_mandatory_config("TARGET_IMAGE");
757 }
758
759 get_mandatory_config("LOCALVERSION");
760
761 return if ($buildonly);
762
763 my $rtype = $opt{"REBOOT_TYPE"};
764
765 if (!defined($rtype)) {
766 if (!defined($opt{"GRUB_MENU"})) {
767 get_mandatory_config("REBOOT_TYPE");
768 $rtype = $entered_configs{"REBOOT_TYPE"};
769 } else {
770 $rtype = "grub";
771 }
772 }
773
774 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
775 get_mandatory_config("GRUB_MENU");
776 }
777
778 if ($rtype eq "grub2") {
779 get_mandatory_config("GRUB_MENU");
780 get_mandatory_config("GRUB_FILE");
781 }
782
783 if ($rtype eq "syslinux") {
784 get_mandatory_config("SYSLINUX_LABEL");
785 }
786}
787
788sub process_variables {
789 my ($value, $remove_undef) = @_;
790 my $retval = "";
791
792 # We want to check for '\', and it is just easier
793 # to check the previous characet of '$' and not need
794 # to worry if '$' is the first character. By adding
795 # a space to $value, we can just check [^\\]\$ and
796 # it will still work.
797 $value = " $value";
798
799 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
800 my $begin = $1;
801 my $var = $2;
802 my $end = $3;
803 # append beginning of value to retval
804 $retval = "$retval$begin";
805 if ($var =~ s/^shell\s+//) {
806 $retval = `$var`;
807 if ($?) {
808 doprint "WARNING: $var returned an error\n";
809 } else {
810 chomp $retval;
811 }
812 } elsif (defined($variable{$var})) {
813 $retval = "$retval$variable{$var}";
814 } elsif (defined($remove_undef) && $remove_undef) {
815 # for if statements, any variable that is not defined,
816 # we simple convert to 0
817 $retval = "${retval}0";
818 } else {
819 # put back the origin piece.
820 $retval = "$retval\$\{$var\}";
821 # This could be an option that is used later, save
822 # it so we don't warn if this option is not one of
823 # ktests options.
824 $used_options{$var} = 1;
825 }
826 $value = $end;
827 }
828 $retval = "$retval$value";
829
830 # remove the space added in the beginning
831 $retval =~ s/ //;
832
833 return "$retval";
834}
835
836sub set_value {
837 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
838
839 my $prvalue = process_variables($rvalue);
840
841 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
842 $prvalue !~ /^(config_|)bisect$/ &&
843 $prvalue !~ /^build$/ &&
844 $buildonly) {
845
846 # Note if a test is something other than build, then we
847 # will need other mandatory options.
848 if ($prvalue ne "install") {
849 $buildonly = 0;
850 } else {
851 # install still limits some mandatory options.
852 $buildonly = 2;
853 }
854 }
855
856 if (defined($opt{$lvalue})) {
857 if (!$override || defined(${$overrides}{$lvalue})) {
858 my $extra = "";
859 if ($override) {
860 $extra = "In the same override section!\n";
861 }
862 die "$name: $.: Option $lvalue defined more than once!\n$extra";
863 }
864 ${$overrides}{$lvalue} = $prvalue;
865 }
866
867 $opt{$lvalue} = $prvalue;
868}
869
870sub set_eval {
871 my ($lvalue, $rvalue, $name) = @_;
872
873 my $prvalue = process_variables($rvalue);
874 my $arr;
875
876 if (defined($evals{$lvalue})) {
877 $arr = $evals{$lvalue};
878 } else {
879 $arr = [];
880 $evals{$lvalue} = $arr;
881 }
882
883 push @{$arr}, $rvalue;
884}
885
886sub set_variable {
887 my ($lvalue, $rvalue) = @_;
888
889 if ($rvalue =~ /^\s*$/) {
890 delete $variable{$lvalue};
891 } else {
892 $rvalue = process_variables($rvalue);
893 $variable{$lvalue} = $rvalue;
894 }
895}
896
897sub process_compare {
898 my ($lval, $cmp, $rval) = @_;
899
900 # remove whitespace
901
902 $lval =~ s/^\s*//;
903 $lval =~ s/\s*$//;
904
905 $rval =~ s/^\s*//;
906 $rval =~ s/\s*$//;
907
908 if ($cmp eq "==") {
909 return $lval eq $rval;
910 } elsif ($cmp eq "!=") {
911 return $lval ne $rval;
912 } elsif ($cmp eq "=~") {
913 return $lval =~ m/$rval/;
914 } elsif ($cmp eq "!~") {
915 return $lval !~ m/$rval/;
916 }
917
918 my $statement = "$lval $cmp $rval";
919 my $ret = eval $statement;
920
921 # $@ stores error of eval
922 if ($@) {
923 return -1;
924 }
925
926 return $ret;
927}
928
929sub value_defined {
930 my ($val) = @_;
931
932 return defined($variable{$2}) ||
933 defined($opt{$2});
934}
935
936sub process_expression {
937 my ($name, $val) = @_;
938
939 my $c = $d++;
940
941 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
942 my $express = $1;
943
944 if (process_expression($name, $express)) {
945 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
946 } else {
947 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
948 }
949 }
950
951 $d--;
952 my $OR = "\\|\\|";
953 my $AND = "\\&\\&";
954
955 while ($val =~ s/^(.*?)($OR|$AND)//) {
956 my $express = $1;
957 my $op = $2;
958
959 if (process_expression($name, $express)) {
960 if ($op eq "||") {
961 return 1;
962 }
963 } else {
964 if ($op eq "&&") {
965 return 0;
966 }
967 }
968 }
969
970 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
971 my $ret = process_compare($1, $2, $3);
972 if ($ret < 0) {
973 die "$name: $.: Unable to process comparison\n";
974 }
975 return $ret;
976 }
977
978 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
979 if (defined $1) {
980 return !value_defined($2);
981 } else {
982 return value_defined($2);
983 }
984 }
985
986 if ($val =~ s/^\s*NOT\s+(.*)//) {
987 my $express = $1;
988 my $ret = process_expression($name, $express);
989 return !$ret;
990 }
991
992 if ($val =~ /^\s*0\s*$/) {
993 return 0;
994 } elsif ($val =~ /^\s*\d+\s*$/) {
995 return 1;
996 }
997
998 die ("$name: $.: Undefined content $val in if statement\n");
999}
1000
1001sub process_if {
1002 my ($name, $value) = @_;
1003
1004 # Convert variables and replace undefined ones with 0
1005 my $val = process_variables($value, 1);
1006 my $ret = process_expression $name, $val;
1007
1008 return $ret;
1009}
1010
1011sub __read_config {
1012 my ($config, $current_test_num) = @_;
1013
1014 my $in;
1015 open($in, $config) || die "can't read file $config";
1016
1017 my $name = $config;
1018 $name =~ s,.*/(.*),$1,;
1019
1020 my $test_num = $$current_test_num;
1021 my $default = 1;
1022 my $repeat = 1;
1023 my $num_tests_set = 0;
1024 my $skip = 0;
1025 my $rest;
1026 my $line;
1027 my $test_case = 0;
1028 my $if = 0;
1029 my $if_set = 0;
1030 my $override = 0;
1031
1032 my %overrides;
1033
1034 while (<$in>) {
1035
1036 # ignore blank lines and comments
1037 next if (/^\s*$/ || /\s*\#/);
1038
1039 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1040
1041 my $type = $1;
1042 $rest = $2;
1043 $line = $2;
1044
1045 my $old_test_num;
1046 my $old_repeat;
1047 $override = 0;
1048
1049 if ($type eq "TEST_START") {
1050 if ($num_tests_set) {
1051 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1052 }
1053
1054 $old_test_num = $test_num;
1055 $old_repeat = $repeat;
1056
1057 $test_num += $repeat;
1058 $default = 0;
1059 $repeat = 1;
1060 } else {
1061 $default = 1;
1062 }
1063
1064 # If SKIP is anywhere in the line, the command will be skipped
1065 if ($rest =~ s/\s+SKIP\b//) {
1066 $skip = 1;
1067 } else {
1068 $test_case = 1;
1069 $skip = 0;
1070 }
1071
1072 if ($rest =~ s/\sELSE\b//) {
1073 if (!$if) {
1074 die "$name: $.: ELSE found with out matching IF section\n$_";
1075 }
1076 $if = 0;
1077
1078 if ($if_set) {
1079 $skip = 1;
1080 } else {
1081 $skip = 0;
1082 }
1083 }
1084
1085 if ($rest =~ s/\sIF\s+(.*)//) {
1086 if (process_if($name, $1)) {
1087 $if_set = 1;
1088 } else {
1089 $skip = 1;
1090 }
1091 $if = 1;
1092 } else {
1093 $if = 0;
1094 $if_set = 0;
1095 }
1096
1097 if (!$skip) {
1098 if ($type eq "TEST_START") {
1099 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1100 $repeat = $1;
1101 $repeat_tests{"$test_num"} = $repeat;
1102 }
1103 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1104 # DEFAULT only
1105 $override = 1;
1106 # Clear previous overrides
1107 %overrides = ();
1108 }
1109 }
1110
1111 if (!$skip && $rest !~ /^\s*$/) {
1112 die "$name: $.: Garbage found after $type\n$_";
1113 }
1114
1115 if ($skip && $type eq "TEST_START") {
1116 $test_num = $old_test_num;
1117 $repeat = $old_repeat;
1118 }
1119 } elsif (/^\s*ELSE\b(.*)$/) {
1120 if (!$if) {
1121 die "$name: $.: ELSE found with out matching IF section\n$_";
1122 }
1123 $rest = $1;
1124 if ($if_set) {
1125 $skip = 1;
1126 $rest = "";
1127 } else {
1128 $skip = 0;
1129
1130 if ($rest =~ /\sIF\s+(.*)/) {
1131 # May be a ELSE IF section.
1132 if (process_if($name, $1)) {
1133 $if_set = 1;
1134 } else {
1135 $skip = 1;
1136 }
1137 $rest = "";
1138 } else {
1139 $if = 0;
1140 }
1141 }
1142
1143 if ($rest !~ /^\s*$/) {
1144 die "$name: $.: Garbage found after DEFAULTS\n$_";
1145 }
1146
1147 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1148
1149 next if ($skip);
1150
1151 if (!$default) {
1152 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1153 }
1154
1155 my $file = process_variables($1);
1156
1157 if ($file !~ m,^/,) {
1158 # check the path of the config file first
1159 if ($config =~ m,(.*)/,) {
1160 if (-f "$1/$file") {
1161 $file = "$1/$file";
1162 }
1163 }
1164 }
1165
1166 if ( ! -r $file ) {
1167 die "$name: $.: Can't read file $file\n$_";
1168 }
1169
1170 if (__read_config($file, \$test_num)) {
1171 $test_case = 1;
1172 }
1173
1174 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1175
1176 next if ($skip);
1177
1178 my $lvalue = $1;
1179 my $rvalue = $2;
1180
1181 if ($default || $lvalue =~ /\[\d+\]$/) {
1182 set_eval($lvalue, $rvalue, $name);
1183 } else {
1184 my $val = "$lvalue\[$test_num\]";
1185 set_eval($val, $rvalue, $name);
1186 }
1187
1188 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1189
1190 next if ($skip);
1191
1192 my $lvalue = $1;
1193 my $rvalue = $2;
1194
1195 if (!$default &&
1196 ($lvalue eq "NUM_TESTS" ||
1197 $lvalue eq "LOG_FILE" ||
1198 $lvalue eq "CLEAR_LOG")) {
1199 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1200 }
1201
1202 if ($lvalue eq "NUM_TESTS") {
1203 if ($test_num) {
1204 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1205 }
1206 if (!$default) {
1207 die "$name: $.: NUM_TESTS must be set in default section\n";
1208 }
1209 $num_tests_set = 1;
1210 }
1211
1212 if ($default || $lvalue =~ /\[\d+\]$/) {
1213 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1214 } else {
1215 my $val = "$lvalue\[$test_num\]";
1216 set_value($val, $rvalue, $override, \%overrides, $name);
1217
1218 if ($repeat > 1) {
1219 $repeats{$val} = $repeat;
1220 }
1221 }
1222 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1223 next if ($skip);
1224
1225 my $lvalue = $1;
1226 my $rvalue = $2;
1227
1228 # process config variables.
1229 # Config variables are only active while reading the
1230 # config and can be defined anywhere. They also ignore
1231 # TEST_START and DEFAULTS, but are skipped if they are in
1232 # on of these sections that have SKIP defined.
1233 # The save variable can be
1234 # defined multiple times and the new one simply overrides
1235 # the previous one.
1236 set_variable($lvalue, $rvalue);
1237
1238 } else {
1239 die "$name: $.: Garbage found in config\n$_";
1240 }
1241 }
1242
1243 if ($test_num) {
1244 $test_num += $repeat - 1;
1245 $opt{"NUM_TESTS"} = $test_num;
1246 }
1247
1248 close($in);
1249
1250 $$current_test_num = $test_num;
1251
1252 return $test_case;
1253}
1254
1255sub get_test_case {
1256 print "What test case would you like to run?\n";
1257 print " (build, install or boot)\n";
1258 print " Other tests are available but require editing ktest.conf\n";
1259 print " (see tools/testing/ktest/sample.conf)\n";
1260 my $ans = <STDIN>;
1261 chomp $ans;
1262 $default{"TEST_TYPE"} = $ans;
1263}
1264
1265sub read_config {
1266 my ($config) = @_;
1267
1268 my $test_case;
1269 my $test_num = 0;
1270
1271 $test_case = __read_config $config, \$test_num;
1272
1273 # make sure we have all mandatory configs
1274 get_mandatory_configs;
1275
1276 # was a test specified?
1277 if (!$test_case) {
1278 print "No test case specified.\n";
1279 get_test_case;
1280 }
1281
1282 # set any defaults
1283
1284 foreach my $default (keys %default) {
1285 if (!defined($opt{$default})) {
1286 $opt{$default} = $default{$default};
1287 }
1288 }
1289
1290 if ($opt{"IGNORE_UNUSED"} == 1) {
1291 return;
1292 }
1293
1294 my %not_used;
1295
1296 # check if there are any stragglers (typos?)
1297 foreach my $option (keys %opt) {
1298 my $op = $option;
1299 # remove per test labels.
1300 $op =~ s/\[.*\]//;
1301 if (!exists($option_map{$op}) &&
1302 !exists($default{$op}) &&
1303 !exists($used_options{$op})) {
1304 $not_used{$op} = 1;
1305 }
1306 }
1307
1308 if (%not_used) {
1309 my $s = "s are";
1310 $s = " is" if (keys %not_used == 1);
1311 print "The following option$s not used; could be a typo:\n";
1312 foreach my $option (keys %not_used) {
1313 print "$option\n";
1314 }
1315 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1316 if (!read_yn "Do you want to continue?") {
1317 exit -1;
1318 }
1319 }
1320}
1321
1322sub __eval_option {
1323 my ($name, $option, $i) = @_;
1324
1325 # Add space to evaluate the character before $
1326 $option = " $option";
1327 my $retval = "";
1328 my $repeated = 0;
1329 my $parent = 0;
1330
1331 foreach my $test (keys %repeat_tests) {
1332 if ($i >= $test &&
1333 $i < $test + $repeat_tests{$test}) {
1334
1335 $repeated = 1;
1336 $parent = $test;
1337 last;
1338 }
1339 }
1340
1341 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1342 my $start = $1;
1343 my $var = $2;
1344 my $end = $3;
1345
1346 # Append beginning of line
1347 $retval = "$retval$start";
1348
1349 # If the iteration option OPT[$i] exists, then use that.
1350 # otherwise see if the default OPT (without [$i]) exists.
1351
1352 my $o = "$var\[$i\]";
1353 my $parento = "$var\[$parent\]";
1354
1355 # If a variable contains itself, use the default var
1356 if (($var eq $name) && defined($opt{$var})) {
1357 $o = $opt{$var};
1358 $retval = "$retval$o";
1359 } elsif (defined($opt{$o})) {
1360 $o = $opt{$o};
1361 $retval = "$retval$o";
1362 } elsif ($repeated && defined($opt{$parento})) {
1363 $o = $opt{$parento};
1364 $retval = "$retval$o";
1365 } elsif (defined($opt{$var})) {
1366 $o = $opt{$var};
1367 $retval = "$retval$o";
1368 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1369 # special option KERNEL_VERSION uses kernel version
1370 get_version();
1371 $retval = "$retval$version";
1372 } else {
1373 $retval = "$retval\$\{$var\}";
1374 }
1375
1376 $option = $end;
1377 }
1378
1379 $retval = "$retval$option";
1380
1381 $retval =~ s/^ //;
1382
1383 return $retval;
1384}
1385
1386sub process_evals {
1387 my ($name, $option, $i) = @_;
1388
1389 my $option_name = "$name\[$i\]";
1390 my $ev;
1391
1392 my $old_option = $option;
1393
1394 if (defined($evals{$option_name})) {
1395 $ev = $evals{$option_name};
1396 } elsif (defined($evals{$name})) {
1397 $ev = $evals{$name};
1398 } else {
1399 return $option;
1400 }
1401
1402 for my $e (@{$ev}) {
1403 eval "\$option =~ $e";
1404 }
1405
1406 if ($option ne $old_option) {
1407 doprint("$name changed from '$old_option' to '$option'\n");
1408 }
1409
1410 return $option;
1411}
1412
1413sub eval_option {
1414 my ($name, $option, $i) = @_;
1415
1416 my $prev = "";
1417
1418 # Since an option can evaluate to another option,
1419 # keep iterating until we do not evaluate any more
1420 # options.
1421 my $r = 0;
1422 while ($prev ne $option) {
1423 # Check for recursive evaluations.
1424 # 100 deep should be more than enough.
1425 if ($r++ > 100) {
1426 die "Over 100 evaluations occurred with $option\n" .
1427 "Check for recursive variables\n";
1428 }
1429 $prev = $option;
1430 $option = __eval_option($name, $option, $i);
1431 }
1432
1433 $option = process_evals($name, $option, $i);
1434
1435 return $option;
1436}
1437
1438sub reboot {
1439 my ($time) = @_;
1440 my $powercycle = 0;
1441
1442 # test if the machine can be connected to within a few seconds
1443 my $stat = run_ssh("echo check machine status", $connect_timeout);
1444 if (!$stat) {
1445 doprint("power cycle\n");
1446 $powercycle = 1;
1447 }
1448
1449 if ($powercycle) {
1450 run_command "$power_cycle";
1451
1452 start_monitor;
1453 # flush out current monitor
1454 # May contain the reboot success line
1455 wait_for_monitor 1;
1456
1457 } else {
1458 # Make sure everything has been written to disk
1459 run_ssh("sync", 10);
1460
1461 if (defined($time)) {
1462 start_monitor;
1463 # flush out current monitor
1464 # May contain the reboot success line
1465 wait_for_monitor 1;
1466 }
1467
1468 # try to reboot normally
1469 if (run_command $reboot) {
1470 if (defined($powercycle_after_reboot)) {
1471 sleep $powercycle_after_reboot;
1472 run_command "$power_cycle";
1473 }
1474 } else {
1475 # nope? power cycle it.
1476 run_command "$power_cycle";
1477 }
1478 }
1479
1480 if (defined($time)) {
1481
1482 # We only want to get to the new kernel, don't fail
1483 # if we stumble over a call trace.
1484 my $save_ignore_errors = $ignore_errors;
1485 $ignore_errors = 1;
1486
1487 # Look for the good kernel to boot
1488 if (wait_for_monitor($time, "Linux version")) {
1489 # reboot got stuck?
1490 doprint "Reboot did not finish. Forcing power cycle\n";
1491 run_command "$power_cycle";
1492 }
1493
1494 $ignore_errors = $save_ignore_errors;
1495
1496 # Still need to wait for the reboot to finish
1497 wait_for_monitor($time, $reboot_success_line);
1498
1499 end_monitor;
1500 }
1501}
1502
1503sub reboot_to_good {
1504 my ($time) = @_;
1505
1506 if (defined($switch_to_good)) {
1507 run_command $switch_to_good;
1508 }
1509
1510 reboot $time;
1511}
1512
1513sub do_not_reboot {
1514 my $i = $iteration;
1515
1516 return $test_type eq "build" || $no_reboot ||
1517 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1518 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1519 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1520}
1521
1522sub get_test_name() {
1523 my $name;
1524
1525 if (defined($test_name)) {
1526 $name = "$test_name:$test_type";
1527 } else {
1528 $name = $test_type;
1529 }
1530 return $name;
1531}
1532
1533sub dodie {
1534 # avoid recursion
1535 return if ($in_die);
1536 $in_die = 1;
1537
1538 my $i = $iteration;
1539
1540 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1541
1542 if ($reboot_on_error && !do_not_reboot) {
1543 doprint "REBOOTING\n";
1544 reboot_to_good;
1545 } elsif ($poweroff_on_error && defined($power_off)) {
1546 doprint "POWERING OFF\n";
1547 `$power_off`;
1548 }
1549
1550 if (defined($opt{"LOG_FILE"})) {
1551 print " See $opt{LOG_FILE} for more info.\n";
1552 }
1553
1554 if ($email_on_error) {
1555 my $name = get_test_name;
1556 my $log_file;
1557
1558 if (defined($opt{"LOG_FILE"})) {
1559 my $whence = 2; # End of file
1560 my $log_size = tell LOG;
1561 my $size = $log_size - $test_log_start;
1562
1563 if (defined($mail_max_size)) {
1564 if ($size > $mail_max_size) {
1565 $size = $mail_max_size;
1566 }
1567 }
1568 my $pos = - $size;
1569 $log_file = "$tmpdir/log";
1570 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1571 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1572 seek(L, $pos, $whence);
1573 while (<L>) {
1574 print O;
1575 }
1576 close O;
1577 close L;
1578 }
1579
1580 send_email("KTEST: critical failure for test $i [$name]",
1581 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1582 }
1583
1584 if ($monitor_cnt) {
1585 # restore terminal settings
1586 system("stty $stty_orig");
1587 }
1588
1589 if (defined($post_test)) {
1590 run_command $post_test;
1591 }
1592
1593 die @_, "\n";
1594}
1595
1596sub create_pty {
1597 my ($ptm, $pts) = @_;
1598 my $tmp;
1599 my $TIOCSPTLCK = 0x40045431;
1600 my $TIOCGPTN = 0x80045430;
1601
1602 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1603 dodie "Can't open /dev/ptmx";
1604
1605 # unlockpt()
1606 $tmp = pack("i", 0);
1607 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1608 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1609
1610 # ptsname()
1611 ioctl($ptm, $TIOCGPTN, $tmp) or
1612 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1613 $tmp = unpack("i", $tmp);
1614
1615 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1616 dodie "Can't open /dev/pts/$tmp";
1617}
1618
1619sub exec_console {
1620 my ($ptm, $pts) = @_;
1621
1622 close($ptm);
1623
1624 close(\*STDIN);
1625 close(\*STDOUT);
1626 close(\*STDERR);
1627
1628 open(\*STDIN, '<&', $pts);
1629 open(\*STDOUT, '>&', $pts);
1630 open(\*STDERR, '>&', $pts);
1631
1632 close($pts);
1633
1634 exec $console or
1635 dodie "Can't open console $console";
1636}
1637
1638sub open_console {
1639 my ($ptm) = @_;
1640 my $pts = \*PTSFD;
1641 my $pid;
1642
1643 # save terminal settings
1644 $stty_orig = `stty -g`;
1645
1646 # place terminal in cbreak mode so that stdin can be read one character at
1647 # a time without having to wait for a newline
1648 system("stty -icanon -echo -icrnl");
1649
1650 create_pty($ptm, $pts);
1651
1652 $pid = fork;
1653
1654 if (!$pid) {
1655 # child
1656 exec_console($ptm, $pts)
1657 }
1658
1659 # parent
1660 close($pts);
1661
1662 return $pid;
1663
1664 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1665}
1666
1667sub close_console {
1668 my ($fp, $pid) = @_;
1669
1670 doprint "kill child process $pid\n";
1671 kill $close_console_signal, $pid;
1672
1673 doprint "wait for child process $pid to exit\n";
1674 waitpid($pid, 0);
1675
1676 print "closing!\n";
1677 close($fp);
1678
1679 # restore terminal settings
1680 system("stty $stty_orig");
1681}
1682
1683sub start_monitor {
1684 if ($monitor_cnt++) {
1685 return;
1686 }
1687 $monitor_fp = \*MONFD;
1688 $monitor_pid = open_console $monitor_fp;
1689
1690 return;
1691
1692 open(MONFD, "Stop perl from warning about single use of MONFD");
1693}
1694
1695sub end_monitor {
1696 return if (!defined $console);
1697 if (--$monitor_cnt) {
1698 return;
1699 }
1700 close_console($monitor_fp, $monitor_pid);
1701}
1702
1703sub wait_for_monitor {
1704 my ($time, $stop) = @_;
1705 my $full_line = "";
1706 my $line;
1707 my $booted = 0;
1708 my $start_time = time;
1709 my $skip_call_trace = 0;
1710 my $bug = 0;
1711 my $bug_ignored = 0;
1712 my $now;
1713
1714 doprint "** Wait for monitor to settle down **\n";
1715
1716 # read the monitor and wait for the system to calm down
1717 while (!$booted) {
1718 $line = wait_for_input($monitor_fp, $time);
1719 last if (!defined($line));
1720 print "$line";
1721 $full_line .= $line;
1722
1723 if (defined($stop) && $full_line =~ /$stop/) {
1724 doprint "wait for monitor detected $stop\n";
1725 $booted = 1;
1726 }
1727
1728 if ($full_line =~ /\[ backtrace testing \]/) {
1729 $skip_call_trace = 1;
1730 }
1731
1732 if ($full_line =~ /call trace:/i) {
1733 if (!$bug && !$skip_call_trace) {
1734 if ($ignore_errors) {
1735 $bug_ignored = 1;
1736 } else {
1737 $bug = 1;
1738 }
1739 }
1740 }
1741
1742 if ($full_line =~ /\[ end of backtrace testing \]/) {
1743 $skip_call_trace = 0;
1744 }
1745
1746 if ($full_line =~ /Kernel panic -/) {
1747 $bug = 1;
1748 }
1749
1750 if ($line =~ /\n/) {
1751 $full_line = "";
1752 }
1753 $now = time;
1754 if ($now - $start_time >= $max_monitor_wait) {
1755 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1756 return 1;
1757 }
1758 }
1759 print "** Monitor flushed **\n";
1760
1761 # if stop is defined but wasn't hit, return error
1762 # used by reboot (which wants to see a reboot)
1763 if (defined($stop) && !$booted) {
1764 $bug = 1;
1765 }
1766 return $bug;
1767}
1768
1769sub save_logs {
1770 my ($result, $basedir) = @_;
1771 my @t = localtime;
1772 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1773 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1774
1775 my $type = $build_type;
1776 if ($type =~ /useconfig/) {
1777 $type = "useconfig";
1778 }
1779
1780 my $dir = "$machine-$test_type-$type-$result-$date";
1781
1782 $dir = "$basedir/$dir";
1783
1784 if (!-d $dir) {
1785 mkpath($dir) or
1786 dodie "can't create $dir";
1787 }
1788
1789 my %files = (
1790 "config" => $output_config,
1791 "buildlog" => $buildlog,
1792 "dmesg" => $dmesg,
1793 "testlog" => $testlog,
1794 );
1795
1796 while (my ($name, $source) = each(%files)) {
1797 if (-f "$source") {
1798 cp "$source", "$dir/$name" or
1799 dodie "failed to copy $source";
1800 }
1801 }
1802
1803 doprint "*** Saved info to $dir ***\n";
1804}
1805
1806sub fail {
1807
1808 if ($die_on_failure) {
1809 dodie @_;
1810 }
1811
1812 doprint "FAILED\n";
1813
1814 my $i = $iteration;
1815
1816 # no need to reboot for just building.
1817 if (!do_not_reboot) {
1818 doprint "REBOOTING\n";
1819 reboot_to_good $sleep_time;
1820 }
1821
1822 my $name = "";
1823
1824 if (defined($test_name)) {
1825 $name = " ($test_name)";
1826 }
1827
1828 print_times;
1829
1830 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1831 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1832 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1833 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1834 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1835
1836 if (defined($store_failures)) {
1837 save_logs "fail", $store_failures;
1838 }
1839
1840 if (defined($post_test)) {
1841 run_command $post_test;
1842 }
1843
1844 return 1;
1845}
1846
1847sub run_command {
1848 my ($command, $redirect, $timeout) = @_;
1849 my $start_time;
1850 my $end_time;
1851 my $dolog = 0;
1852 my $dord = 0;
1853 my $dostdout = 0;
1854 my $pid;
1855 my $command_orig = $command;
1856
1857 $command =~ s/\$SSH_USER/$ssh_user/g;
1858 $command =~ s/\$MACHINE/$machine/g;
1859
1860 doprint("$command ... ");
1861 $start_time = time;
1862
1863 $pid = open(CMD, "$command 2>&1 |") or
1864 (fail "unable to exec $command" and return 0);
1865
1866 if (defined($opt{"LOG_FILE"})) {
1867 $dolog = 1;
1868 }
1869
1870 if (defined($redirect)) {
1871 if ($redirect eq 1) {
1872 $dostdout = 1;
1873 # Have the output of the command on its own line
1874 doprint "\n";
1875 } else {
1876 open (RD, ">$redirect") or
1877 dodie "failed to write to redirect $redirect";
1878 $dord = 1;
1879 }
1880 }
1881
1882 my $hit_timeout = 0;
1883
1884 while (1) {
1885 my $fp = \*CMD;
1886 if (defined($timeout)) {
1887 doprint "timeout = $timeout\n";
1888 }
1889 my $line = wait_for_input($fp, $timeout);
1890 if (!defined($line)) {
1891 my $now = time;
1892 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1893 doprint "Hit timeout of $timeout, killing process\n";
1894 $hit_timeout = 1;
1895 kill 9, $pid;
1896 }
1897 last;
1898 }
1899 print LOG $line if ($dolog);
1900 print RD $line if ($dord);
1901 print $line if ($dostdout);
1902 }
1903
1904 waitpid($pid, 0);
1905 # shift 8 for real exit status
1906 $run_command_status = $? >> 8;
1907
1908 if ($command_orig eq $default{REBOOT} &&
1909 $run_command_status == $reboot_return_code) {
1910 $run_command_status = 0;
1911 }
1912
1913 close(CMD);
1914 close(RD) if ($dord);
1915
1916 $end_time = time;
1917 my $delta = $end_time - $start_time;
1918
1919 if ($delta == 1) {
1920 doprint "[1 second] ";
1921 } else {
1922 doprint "[$delta seconds] ";
1923 }
1924
1925 if ($hit_timeout) {
1926 $run_command_status = 1;
1927 }
1928
1929 if ($run_command_status) {
1930 doprint "FAILED!\n";
1931 } else {
1932 doprint "SUCCESS\n";
1933 }
1934
1935 return !$run_command_status;
1936}
1937
1938sub run_ssh {
1939 my ($cmd, $timeout) = @_;
1940 my $cp_exec = $ssh_exec;
1941
1942 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1943 return run_command "$cp_exec", undef , $timeout;
1944}
1945
1946sub run_scp {
1947 my ($src, $dst, $cp_scp) = @_;
1948
1949 $cp_scp =~ s/\$SRC_FILE/$src/g;
1950 $cp_scp =~ s/\$DST_FILE/$dst/g;
1951
1952 return run_command "$cp_scp";
1953}
1954
1955sub run_scp_install {
1956 my ($src, $dst) = @_;
1957
1958 my $cp_scp = $scp_to_target_install;
1959
1960 return run_scp($src, $dst, $cp_scp);
1961}
1962
1963sub run_scp_mod {
1964 my ($src, $dst) = @_;
1965
1966 my $cp_scp = $scp_to_target;
1967
1968 return run_scp($src, $dst, $cp_scp);
1969}
1970
1971sub _get_grub_index {
1972
1973 my ($command, $target, $skip, $submenu) = @_;
1974
1975 return if (defined($grub_number) && defined($last_grub_menu) &&
1976 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1977 $last_machine eq $machine);
1978
1979 doprint "Find $reboot_type menu ... ";
1980 $grub_number = -1;
1981
1982 my $ssh_grub = $ssh_exec;
1983 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1984
1985 open(IN, "$ssh_grub |") or
1986 dodie "unable to execute $command";
1987
1988 my $found = 0;
1989
1990 my $submenu_number = 0;
1991
1992 while (<IN>) {
1993 if (/$target/) {
1994 $grub_number++;
1995 $found = 1;
1996 last;
1997 } elsif (defined($submenu) && /$submenu/) {
1998 $submenu_number++;
1999 $grub_number = -1;
2000 } elsif (/$skip/) {
2001 $grub_number++;
2002 }
2003 }
2004 close(IN);
2005
2006 dodie "Could not find '$grub_menu' through $command on $machine"
2007 if (!$found);
2008 if ($submenu_number > 0) {
2009 $grub_number = "$submenu_number>$grub_number";
2010 }
2011 doprint "$grub_number\n";
2012 $last_grub_menu = $grub_menu;
2013 $last_machine = $machine;
2014}
2015
2016sub get_grub_index {
2017
2018 my $command;
2019 my $target;
2020 my $skip;
2021 my $submenu;
2022 my $grub_menu_qt;
2023
2024 if ($reboot_type !~ /^grub/) {
2025 return;
2026 }
2027
2028 $grub_menu_qt = quotemeta($grub_menu);
2029
2030 if ($reboot_type eq "grub") {
2031 $command = "cat /boot/grub/menu.lst";
2032 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2033 $skip = '^\s*title\s';
2034 } elsif ($reboot_type eq "grub2") {
2035 $command = "cat $grub_file";
2036 $target = '^\s*menuentry.*' . $grub_menu_qt;
2037 $skip = '^\s*menuentry';
2038 $submenu = '^\s*submenu\s';
2039 } elsif ($reboot_type eq "grub2bls") {
2040 $command = $grub_bls_get;
2041 $target = '^title=.*' . $grub_menu_qt;
2042 $skip = '^title=';
2043 } else {
2044 return;
2045 }
2046
2047 _get_grub_index($command, $target, $skip, $submenu);
2048}
2049
2050sub wait_for_input {
2051 my ($fp, $time) = @_;
2052 my $start_time;
2053 my $rin;
2054 my $rout;
2055 my $nr;
2056 my $buf;
2057 my $line;
2058 my $ch;
2059
2060 if (!defined($time)) {
2061 $time = $timeout;
2062 }
2063
2064 $rin = '';
2065 vec($rin, fileno($fp), 1) = 1;
2066 vec($rin, fileno(\*STDIN), 1) = 1;
2067
2068 $start_time = time;
2069
2070 while (1) {
2071 $nr = select($rout=$rin, undef, undef, $time);
2072
2073 last if ($nr <= 0);
2074
2075 # copy data from stdin to the console
2076 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2077 $nr = sysread(\*STDIN, $buf, 1000);
2078 syswrite($fp, $buf, $nr) if ($nr > 0);
2079 }
2080
2081 # The timeout is based on time waiting for the fp data
2082 if (vec($rout, fileno($fp), 1) != 1) {
2083 last if (defined($time) && (time - $start_time > $time));
2084 next;
2085 }
2086
2087 $line = "";
2088
2089 # try to read one char at a time
2090 while (sysread $fp, $ch, 1) {
2091 $line .= $ch;
2092 last if ($ch eq "\n");
2093 }
2094
2095 last if (!length($line));
2096
2097 return $line;
2098 }
2099 return undef;
2100}
2101
2102sub reboot_to {
2103 if (defined($switch_to_test)) {
2104 run_command $switch_to_test;
2105 }
2106
2107 if ($reboot_type eq "grub") {
2108 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2109 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2110 run_ssh "$grub_reboot \"'$grub_number'\"";
2111 } elsif ($reboot_type eq "syslinux") {
2112 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2113 } elsif (defined $reboot_script) {
2114 run_command "$reboot_script";
2115 }
2116 reboot;
2117}
2118
2119sub get_sha1 {
2120 my ($commit) = @_;
2121
2122 doprint "git rev-list --max-count=1 $commit ... ";
2123 my $sha1 = `git rev-list --max-count=1 $commit`;
2124 my $ret = $?;
2125
2126 logit $sha1;
2127
2128 if ($ret) {
2129 doprint "FAILED\n";
2130 dodie "Failed to get git $commit";
2131 }
2132
2133 print "SUCCESS\n";
2134
2135 chomp $sha1;
2136
2137 return $sha1;
2138}
2139
2140sub monitor {
2141 my $booted = 0;
2142 my $bug = 0;
2143 my $bug_ignored = 0;
2144 my $skip_call_trace = 0;
2145 my $loops;
2146
2147 my $start_time = time;
2148
2149 wait_for_monitor 5;
2150
2151 my $line;
2152 my $full_line = "";
2153
2154 open(DMESG, "> $dmesg") or
2155 dodie "unable to write to $dmesg";
2156
2157 reboot_to;
2158
2159 my $success_start;
2160 my $failure_start;
2161 my $monitor_start = time;
2162 my $done = 0;
2163 my $version_found = 0;
2164
2165 while (!$done) {
2166 if ($bug && defined($stop_after_failure) &&
2167 $stop_after_failure >= 0) {
2168 my $time = $stop_after_failure - (time - $failure_start);
2169 $line = wait_for_input($monitor_fp, $time);
2170 if (!defined($line)) {
2171 doprint "bug timed out after $booted_timeout seconds\n";
2172 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2173 last;
2174 }
2175 } elsif ($booted) {
2176 $line = wait_for_input($monitor_fp, $booted_timeout);
2177 if (!defined($line)) {
2178 my $s = $booted_timeout == 1 ? "" : "s";
2179 doprint "Successful boot found: break after $booted_timeout second$s\n";
2180 last;
2181 }
2182 } else {
2183 $line = wait_for_input($monitor_fp);
2184 if (!defined($line)) {
2185 my $s = $timeout == 1 ? "" : "s";
2186 doprint "Timed out after $timeout second$s\n";
2187 last;
2188 }
2189 }
2190
2191 doprint $line;
2192 print DMESG $line;
2193
2194 # we are not guaranteed to get a full line
2195 $full_line .= $line;
2196
2197 if ($full_line =~ /$success_line/) {
2198 $booted = 1;
2199 $success_start = time;
2200 }
2201
2202 if ($booted && defined($stop_after_success) &&
2203 $stop_after_success >= 0) {
2204 my $now = time;
2205 if ($now - $success_start >= $stop_after_success) {
2206 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2207 last;
2208 }
2209 }
2210
2211 if ($full_line =~ /\[ backtrace testing \]/) {
2212 $skip_call_trace = 1;
2213 }
2214
2215 if ($full_line =~ /call trace:/i) {
2216 if (!$bug && !$skip_call_trace) {
2217 if ($ignore_errors) {
2218 $bug_ignored = 1;
2219 } else {
2220 $bug = 1;
2221 $failure_start = time;
2222 }
2223 }
2224 }
2225
2226 if ($bug && defined($stop_after_failure) &&
2227 $stop_after_failure >= 0) {
2228 my $now = time;
2229 if ($now - $failure_start >= $stop_after_failure) {
2230 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2231 last;
2232 }
2233 }
2234
2235 if ($full_line =~ /\[ end of backtrace testing \]/) {
2236 $skip_call_trace = 0;
2237 }
2238
2239 if ($full_line =~ /Kernel panic -/) {
2240 $failure_start = time;
2241 $bug = 1;
2242 }
2243
2244 # Detect triple faults by testing the banner
2245 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2246 if ($1 eq $version) {
2247 $version_found = 1;
2248 } elsif ($version_found && $detect_triplefault) {
2249 # We already booted into the kernel we are testing,
2250 # but now we booted into another kernel?
2251 # Consider this a triple fault.
2252 doprint "Already booted in Linux kernel $version, but now\n";
2253 doprint "we booted into Linux kernel $1.\n";
2254 doprint "Assuming that this is a triple fault.\n";
2255 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2256 last;
2257 }
2258 }
2259
2260 if ($line =~ /\n/) {
2261 $full_line = "";
2262 }
2263
2264 if ($stop_test_after > 0 && !$booted && !$bug) {
2265 if (time - $monitor_start > $stop_test_after) {
2266 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2267 $done = 1;
2268 }
2269 }
2270 }
2271
2272 my $end_time = time;
2273 $reboot_time = $end_time - $start_time;
2274
2275 close(DMESG);
2276
2277 if ($bug) {
2278 return 0 if ($in_bisect);
2279 fail "failed - got a bug report" and return 0;
2280 }
2281
2282 if (!$booted) {
2283 return 0 if ($in_bisect);
2284 fail "failed - never got a boot prompt." and return 0;
2285 }
2286
2287 if ($bug_ignored) {
2288 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2289 }
2290
2291 return 1;
2292}
2293
2294sub eval_kernel_version {
2295 my ($option) = @_;
2296
2297 $option =~ s/\$KERNEL_VERSION/$version/g;
2298
2299 return $option;
2300}
2301
2302sub do_post_install {
2303
2304 return if (!defined($post_install));
2305
2306 my $cp_post_install = eval_kernel_version $post_install;
2307 run_command "$cp_post_install" or
2308 dodie "Failed to run post install";
2309}
2310
2311# Sometimes the reboot fails, and will hang. We try to ssh to the box
2312# and if we fail, we force another reboot, that should powercycle it.
2313sub test_booted {
2314 if (!run_ssh "echo testing connection") {
2315 reboot $sleep_time;
2316 }
2317}
2318
2319sub install {
2320
2321 return if ($no_install);
2322
2323 my $start_time = time;
2324
2325 if (defined($pre_install)) {
2326 my $cp_pre_install = eval_kernel_version $pre_install;
2327 run_command "$cp_pre_install" or
2328 dodie "Failed to run pre install";
2329 }
2330
2331 my $cp_target = eval_kernel_version $target_image;
2332
2333 test_booted;
2334
2335 run_scp_install "$outputdir/$build_target", "$cp_target" or
2336 dodie "failed to copy image";
2337
2338 my $install_mods = 0;
2339
2340 # should we process modules?
2341 $install_mods = 0;
2342 open(IN, "$output_config") or dodie("Can't read config file");
2343 while (<IN>) {
2344 if (/CONFIG_MODULES(=y)?/) {
2345 if (defined($1)) {
2346 $install_mods = 1;
2347 last;
2348 }
2349 }
2350 }
2351 close(IN);
2352
2353 if (!$install_mods) {
2354 do_post_install;
2355 doprint "No modules needed\n";
2356 my $end_time = time;
2357 $install_time = $end_time - $start_time;
2358 return;
2359 }
2360
2361 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2362 dodie "Failed to install modules";
2363
2364 my $modlib = "/lib/modules/$version";
2365 my $modtar = "ktest-mods.tar.bz2";
2366
2367 run_ssh "rm -rf $modlib" or
2368 dodie "failed to remove old mods: $modlib";
2369
2370 # would be nice if scp -r did not follow symbolic links
2371 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2372 dodie "making tarball";
2373
2374 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2375 dodie "failed to copy modules";
2376
2377 unlink "$tmpdir/$modtar";
2378
2379 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2380 dodie "failed to tar modules";
2381
2382 run_ssh "rm -f /tmp/$modtar";
2383
2384 do_post_install;
2385
2386 my $end_time = time;
2387 $install_time = $end_time - $start_time;
2388}
2389
2390sub get_version {
2391 # get the release name
2392 return if ($have_version);
2393 doprint "$make kernelrelease ... ";
2394 $version = `$make -s kernelrelease | tail -1`;
2395 chomp($version);
2396 doprint "$version\n";
2397 $have_version = 1;
2398}
2399
2400sub start_monitor_and_install {
2401 # Make sure the stable kernel has finished booting
2402
2403 # Install bisects, don't need console
2404 if (defined $console) {
2405 start_monitor;
2406 wait_for_monitor 5;
2407 end_monitor;
2408 }
2409
2410 get_grub_index;
2411 get_version;
2412 install;
2413
2414 start_monitor if (defined $console);
2415 return monitor;
2416}
2417
2418sub process_warning_line {
2419 my ($line) = @_;
2420
2421 chomp $line;
2422
2423 # for distcc heterogeneous systems, some compilers
2424 # do things differently causing warning lines
2425 # to be slightly different. This makes an attempt
2426 # to fixe those issues.
2427
2428 # chop off the index into the line
2429 # using distcc, some compilers give different indexes
2430 # depending on white space
2431 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2432
2433 # Some compilers use UTF-8 extended for quotes and some don't.
2434 $line =~ s/$utf8_quote/'/g;
2435
2436 return $line;
2437}
2438
2439# Read buildlog and check against warnings file for any
2440# new warnings.
2441#
2442# Returns 1 if OK
2443# 0 otherwise
2444sub check_buildlog {
2445 return 1 if (!defined $warnings_file);
2446
2447 my %warnings_list;
2448
2449 # Failed builds should not reboot the target
2450 my $save_no_reboot = $no_reboot;
2451 $no_reboot = 1;
2452
2453 if (-f $warnings_file) {
2454 open(IN, $warnings_file) or
2455 dodie "Error opening $warnings_file";
2456
2457 while (<IN>) {
2458 if (/$check_build_re/) {
2459 my $warning = process_warning_line $_;
2460
2461 $warnings_list{$warning} = 1;
2462 }
2463 }
2464 close(IN);
2465 }
2466
2467 # If warnings file didn't exist, and WARNINGS_FILE exist,
2468 # then we fail on any warning!
2469
2470 open(IN, $buildlog) or dodie "Can't open $buildlog";
2471 while (<IN>) {
2472 if (/$check_build_re/) {
2473 my $warning = process_warning_line $_;
2474
2475 if (!defined $warnings_list{$warning}) {
2476 fail "New warning found (not in $warnings_file)\n$_\n";
2477 $no_reboot = $save_no_reboot;
2478 return 0;
2479 }
2480 }
2481 }
2482 $no_reboot = $save_no_reboot;
2483 close(IN);
2484}
2485
2486sub check_patch_buildlog {
2487 my ($patch) = @_;
2488
2489 my @files = `git show $patch | diffstat -l`;
2490
2491 foreach my $file (@files) {
2492 chomp $file;
2493 }
2494
2495 open(IN, "git show $patch |") or
2496 dodie "failed to show $patch";
2497 while (<IN>) {
2498 if (m,^--- a/(.*),) {
2499 chomp $1;
2500 $files[$#files] = $1;
2501 }
2502 }
2503 close(IN);
2504
2505 open(IN, $buildlog) or dodie "Can't open $buildlog";
2506 while (<IN>) {
2507 if (/^\s*(.*?):.*(warning|error)/) {
2508 my $err = $1;
2509 foreach my $file (@files) {
2510 my $fullpath = "$builddir/$file";
2511 if ($file eq $err || $fullpath eq $err) {
2512 fail "$file built with warnings" and return 0;
2513 }
2514 }
2515 }
2516 }
2517 close(IN);
2518
2519 return 1;
2520}
2521
2522sub apply_min_config {
2523 my $outconfig = "$output_config.new";
2524
2525 # Read the config file and remove anything that
2526 # is in the force_config hash (from minconfig and others)
2527 # then add the force config back.
2528
2529 doprint "Applying minimum configurations into $output_config.new\n";
2530
2531 open (OUT, ">$outconfig") or
2532 dodie "Can't create $outconfig";
2533
2534 if (-f $output_config) {
2535 open (IN, $output_config) or
2536 dodie "Failed to open $output_config";
2537 while (<IN>) {
2538 if (/^(# )?(CONFIG_[^\s=]*)/) {
2539 next if (defined($force_config{$2}));
2540 }
2541 print OUT;
2542 }
2543 close IN;
2544 }
2545 foreach my $config (keys %force_config) {
2546 print OUT "$force_config{$config}\n";
2547 }
2548 close OUT;
2549
2550 run_command "mv $outconfig $output_config";
2551}
2552
2553sub make_oldconfig {
2554
2555 my @force_list = keys %force_config;
2556
2557 if ($#force_list >= 0) {
2558 apply_min_config;
2559 }
2560
2561 if (!run_command "$make olddefconfig") {
2562 # Perhaps olddefconfig doesn't exist in this version of the kernel
2563 # try oldnoconfig
2564 doprint "olddefconfig failed, trying make oldnoconfig\n";
2565 if (!run_command "$make oldnoconfig") {
2566 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2567 # try a yes '' | oldconfig
2568 run_command "yes '' | $make oldconfig" or
2569 dodie "failed make config oldconfig";
2570 }
2571 }
2572}
2573
2574# read a config file and use this to force new configs.
2575sub load_force_config {
2576 my ($config) = @_;
2577
2578 doprint "Loading force configs from $config\n";
2579 open(IN, $config) or
2580 dodie "failed to read $config";
2581 while (<IN>) {
2582 chomp;
2583 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2584 $force_config{$1} = $_;
2585 } elsif (/^# (CONFIG_\S*) is not set/) {
2586 $force_config{$1} = $_;
2587 }
2588 }
2589 close IN;
2590}
2591
2592sub build {
2593 my ($type) = @_;
2594
2595 unlink $buildlog;
2596
2597 my $start_time = time;
2598
2599 # Failed builds should not reboot the target
2600 my $save_no_reboot = $no_reboot;
2601 $no_reboot = 1;
2602
2603 # Calculate a new version from here.
2604 $have_version = 0;
2605
2606 if (defined($pre_build)) {
2607 my $ret = run_command $pre_build;
2608 if (!$ret && defined($pre_build_die) &&
2609 $pre_build_die) {
2610 dodie "failed to pre_build\n";
2611 }
2612 }
2613
2614 if ($type =~ /^useconfig:(.*)/) {
2615 run_command "cp $1 $output_config" or
2616 dodie "could not copy $1 to .config";
2617
2618 $type = "oldconfig";
2619 }
2620
2621 # old config can ask questions
2622 if ($type eq "oldconfig") {
2623 $type = "olddefconfig";
2624
2625 # allow for empty configs
2626 run_command "touch $output_config";
2627
2628 if (!$noclean) {
2629 run_command "mv $output_config $outputdir/config_temp" or
2630 dodie "moving .config";
2631
2632 run_command "$make mrproper" or dodie "make mrproper";
2633
2634 run_command "mv $outputdir/config_temp $output_config" or
2635 dodie "moving config_temp";
2636 }
2637 } elsif (!$noclean) {
2638 unlink "$output_config";
2639 run_command "$make mrproper" or
2640 dodie "make mrproper";
2641 }
2642
2643 # add something to distinguish this build
2644 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2645 print OUT "$localversion\n";
2646 close(OUT);
2647
2648 if (defined($minconfig)) {
2649 load_force_config($minconfig);
2650 }
2651
2652 if ($type ne "olddefconfig") {
2653 run_command "$make $type" or
2654 dodie "failed make config";
2655 }
2656 # Run old config regardless, to enforce min configurations
2657 make_oldconfig;
2658
2659 if (not defined($build_options)){
2660 $build_options = "";
2661 }
2662 my $build_ret = run_command "$make $build_options", $buildlog;
2663
2664 if (defined($post_build)) {
2665 # Because a post build may change the kernel version
2666 # do it now.
2667 get_version;
2668 my $ret = run_command $post_build;
2669 if (!$ret && defined($post_build_die) &&
2670 $post_build_die) {
2671 dodie "failed to post_build\n";
2672 }
2673 }
2674
2675 if (!$build_ret) {
2676 # bisect may need this to pass
2677 if ($in_bisect) {
2678 $no_reboot = $save_no_reboot;
2679 return 0;
2680 }
2681 fail "failed build" and return 0;
2682 }
2683
2684 $no_reboot = $save_no_reboot;
2685
2686 my $end_time = time;
2687 $build_time = $end_time - $start_time;
2688
2689 return 1;
2690}
2691
2692sub halt {
2693 if (!run_ssh "halt" or defined($power_off)) {
2694 if (defined($poweroff_after_halt)) {
2695 sleep $poweroff_after_halt;
2696 run_command "$power_off";
2697 }
2698 } else {
2699 # nope? the zap it!
2700 run_command "$power_off";
2701 }
2702}
2703
2704sub success {
2705 my ($i) = @_;
2706
2707 $successes++;
2708
2709 my $name = "";
2710
2711 if (defined($test_name)) {
2712 $name = " ($test_name)";
2713 }
2714
2715 print_times;
2716
2717 doprint "\n\n";
2718 doprint "*******************************************\n";
2719 doprint "*******************************************\n";
2720 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2721 doprint "*******************************************\n";
2722 doprint "*******************************************\n";
2723
2724 if (defined($store_successes)) {
2725 save_logs "success", $store_successes;
2726 }
2727
2728 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2729 doprint "Reboot and wait $sleep_time seconds\n";
2730 reboot_to_good $sleep_time;
2731 }
2732
2733 if (defined($post_test)) {
2734 run_command $post_test;
2735 }
2736}
2737
2738sub answer_bisect {
2739 for (;;) {
2740 doprint "Pass, fail, or skip? [p/f/s]";
2741 my $ans = <STDIN>;
2742 chomp $ans;
2743 if ($ans eq "p" || $ans eq "P") {
2744 return 1;
2745 } elsif ($ans eq "f" || $ans eq "F") {
2746 return 0;
2747 } elsif ($ans eq "s" || $ans eq "S") {
2748 return -1;
2749 } else {
2750 print "Please answer 'p', 'f', or 's'\n";
2751 }
2752 }
2753}
2754
2755sub child_run_test {
2756
2757 # child should have no power
2758 $reboot_on_error = 0;
2759 $poweroff_on_error = 0;
2760 $die_on_failure = 1;
2761
2762 run_command $run_test, $testlog;
2763
2764 exit $run_command_status;
2765}
2766
2767sub child_finished {
2768 $child_done = 1;
2769}
2770
2771sub do_run_test {
2772 my $child_pid;
2773 my $child_exit;
2774 my $line;
2775 my $full_line;
2776 my $bug = 0;
2777 my $bug_ignored = 0;
2778
2779 my $start_time = time;
2780
2781 wait_for_monitor 1;
2782
2783 doprint "run test $run_test\n";
2784
2785 $child_done = 0;
2786
2787 $SIG{CHLD} = qw(child_finished);
2788
2789 $child_pid = fork;
2790
2791 child_run_test if (!$child_pid);
2792
2793 $full_line = "";
2794
2795 do {
2796 $line = wait_for_input($monitor_fp, 1);
2797 if (defined($line)) {
2798
2799 # we are not guaranteed to get a full line
2800 $full_line .= $line;
2801 doprint $line;
2802
2803 if ($full_line =~ /call trace:/i) {
2804 if ($ignore_errors) {
2805 $bug_ignored = 1;
2806 } else {
2807 $bug = 1;
2808 }
2809 }
2810
2811 if ($full_line =~ /Kernel panic -/) {
2812 $bug = 1;
2813 }
2814
2815 if ($line =~ /\n/) {
2816 $full_line = "";
2817 }
2818 }
2819 } while (!$child_done && !$bug);
2820
2821 if (!$bug && $bug_ignored) {
2822 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2823 }
2824
2825 if ($bug) {
2826 my $failure_start = time;
2827 my $now;
2828 do {
2829 $line = wait_for_input($monitor_fp, 1);
2830 if (defined($line)) {
2831 doprint $line;
2832 }
2833 $now = time;
2834 if ($now - $failure_start >= $stop_after_failure) {
2835 last;
2836 }
2837 } while (defined($line));
2838
2839 doprint "Detected kernel crash!\n";
2840 # kill the child with extreme prejudice
2841 kill 9, $child_pid;
2842 }
2843
2844 waitpid $child_pid, 0;
2845 $child_exit = $? >> 8;
2846
2847 my $end_time = time;
2848 $test_time = $end_time - $start_time;
2849
2850 if (!$bug && $in_bisect) {
2851 if (defined($bisect_ret_good)) {
2852 if ($child_exit == $bisect_ret_good) {
2853 return 1;
2854 }
2855 }
2856 if (defined($bisect_ret_skip)) {
2857 if ($child_exit == $bisect_ret_skip) {
2858 return -1;
2859 }
2860 }
2861 if (defined($bisect_ret_abort)) {
2862 if ($child_exit == $bisect_ret_abort) {
2863 fail "test abort" and return -2;
2864 }
2865 }
2866 if (defined($bisect_ret_bad)) {
2867 if ($child_exit == $bisect_ret_skip) {
2868 return 0;
2869 }
2870 }
2871 if (defined($bisect_ret_default)) {
2872 if ($bisect_ret_default eq "good") {
2873 return 1;
2874 } elsif ($bisect_ret_default eq "bad") {
2875 return 0;
2876 } elsif ($bisect_ret_default eq "skip") {
2877 return -1;
2878 } elsif ($bisect_ret_default eq "abort") {
2879 return -2;
2880 } else {
2881 fail "unknown default action: $bisect_ret_default"
2882 and return -2;
2883 }
2884 }
2885 }
2886
2887 if ($bug || $child_exit) {
2888 return 0 if $in_bisect;
2889 fail "test failed" and return 0;
2890 }
2891 return 1;
2892}
2893
2894sub run_git_bisect {
2895 my ($command) = @_;
2896
2897 doprint "$command ... ";
2898
2899 my $output = `$command 2>&1`;
2900 my $ret = $?;
2901
2902 logit $output;
2903
2904 if ($ret) {
2905 doprint "FAILED\n";
2906 dodie "Failed to git bisect";
2907 }
2908
2909 doprint "SUCCESS\n";
2910 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2911 doprint "$1 [$2]\n";
2912 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2913 $bisect_bad_commit = $1;
2914 doprint "Found bad commit... $1\n";
2915 return 0;
2916 } else {
2917 # we already logged it, just print it now.
2918 print $output;
2919 }
2920
2921 return 1;
2922}
2923
2924sub bisect_reboot {
2925 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2926 reboot_to_good $bisect_sleep_time;
2927}
2928
2929# returns 1 on success, 0 on failure, -1 on skip
2930sub run_bisect_test {
2931 my ($type, $buildtype) = @_;
2932
2933 my $failed = 0;
2934 my $result;
2935 my $output;
2936 my $ret;
2937
2938 $in_bisect = 1;
2939
2940 build $buildtype or $failed = 1;
2941
2942 if ($type ne "build") {
2943 if ($failed && $bisect_skip) {
2944 $in_bisect = 0;
2945 return -1;
2946 }
2947 dodie "Failed on build" if $failed;
2948
2949 # Now boot the box
2950 start_monitor_and_install or $failed = 1;
2951
2952 if ($type ne "boot") {
2953 if ($failed && $bisect_skip) {
2954 end_monitor;
2955 bisect_reboot;
2956 $in_bisect = 0;
2957 return -1;
2958 }
2959 dodie "Failed on boot" if $failed;
2960
2961 do_run_test or $failed = 1;
2962 }
2963 end_monitor;
2964 }
2965
2966 if ($failed) {
2967 $result = 0;
2968 } else {
2969 $result = 1;
2970 }
2971
2972 # reboot the box to a kernel we can ssh to
2973 if ($type ne "build") {
2974 bisect_reboot;
2975 }
2976 $in_bisect = 0;
2977
2978 return $result;
2979}
2980
2981sub run_bisect {
2982 my ($type) = @_;
2983 my $buildtype = "oldconfig";
2984
2985 # We should have a minconfig to use?
2986 if (defined($minconfig)) {
2987 $buildtype = "useconfig:$minconfig";
2988 }
2989
2990 # If the user sets bisect_tries to less than 1, then no tries
2991 # is a success.
2992 my $ret = 1;
2993
2994 # Still let the user manually decide that though.
2995 if ($bisect_tries < 1 && $bisect_manual) {
2996 $ret = answer_bisect;
2997 }
2998
2999 for (my $i = 0; $i < $bisect_tries; $i++) {
3000 if ($bisect_tries > 1) {
3001 my $t = $i + 1;
3002 doprint("Running bisect trial $t of $bisect_tries:\n");
3003 }
3004 $ret = run_bisect_test $type, $buildtype;
3005
3006 if ($bisect_manual) {
3007 $ret = answer_bisect;
3008 }
3009
3010 last if (!$ret);
3011 }
3012
3013 # Are we looking for where it worked, not failed?
3014 if ($reverse_bisect && $ret >= 0) {
3015 $ret = !$ret;
3016 }
3017
3018 if ($ret > 0) {
3019 return "good";
3020 } elsif ($ret == 0) {
3021 return "bad";
3022 } elsif ($bisect_skip) {
3023 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3024 return "skip";
3025 }
3026}
3027
3028sub update_bisect_replay {
3029 my $tmp_log = "$tmpdir/ktest_bisect_log";
3030 run_command "git bisect log > $tmp_log" or
3031 dodie "can't create bisect log";
3032 return $tmp_log;
3033}
3034
3035sub bisect {
3036 my ($i) = @_;
3037
3038 my $result;
3039
3040 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3041 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3042 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3043
3044 my $good = $bisect_good;
3045 my $bad = $bisect_bad;
3046 my $type = $bisect_type;
3047 my $start = $bisect_start;
3048 my $replay = $bisect_replay;
3049 my $start_files = $bisect_files;
3050
3051 if (defined($start_files)) {
3052 $start_files = " -- " . $start_files;
3053 } else {
3054 $start_files = "";
3055 }
3056
3057 # convert to true sha1's
3058 $good = get_sha1($good);
3059 $bad = get_sha1($bad);
3060
3061 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3062 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3063 $reverse_bisect = 1;
3064 } else {
3065 $reverse_bisect = 0;
3066 }
3067
3068 # Can't have a test without having a test to run
3069 if ($type eq "test" && !defined($run_test)) {
3070 $type = "boot";
3071 }
3072
3073 # Check if a bisect was running
3074 my $bisect_start_file = "$builddir/.git/BISECT_START";
3075
3076 my $check = $bisect_check;
3077 my $do_check = defined($check) && $check ne "0";
3078
3079 if ( -f $bisect_start_file ) {
3080 print "Bisect in progress found\n";
3081 if ($do_check) {
3082 print " If you say yes, then no checks of good or bad will be done\n";
3083 }
3084 if (defined($replay)) {
3085 print "** BISECT_REPLAY is defined in config file **";
3086 print " Ignore config option and perform new git bisect log?\n";
3087 if (read_ync " (yes, no, or cancel) ") {
3088 $replay = update_bisect_replay;
3089 $do_check = 0;
3090 }
3091 } elsif (read_yn "read git log and continue?") {
3092 $replay = update_bisect_replay;
3093 $do_check = 0;
3094 }
3095 }
3096
3097 if ($do_check) {
3098 # get current HEAD
3099 my $head = get_sha1("HEAD");
3100
3101 if ($check ne "good") {
3102 doprint "TESTING BISECT BAD [$bad]\n";
3103 run_command "git checkout $bad" or
3104 dodie "Failed to checkout $bad";
3105
3106 $result = run_bisect $type;
3107
3108 if ($result ne "bad") {
3109 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3110 }
3111 }
3112
3113 if ($check ne "bad") {
3114 doprint "TESTING BISECT GOOD [$good]\n";
3115 run_command "git checkout $good" or
3116 dodie "Failed to checkout $good";
3117
3118 $result = run_bisect $type;
3119
3120 if ($result ne "good") {
3121 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3122 }
3123 }
3124
3125 # checkout where we started
3126 run_command "git checkout $head" or
3127 dodie "Failed to checkout $head";
3128 }
3129
3130 run_command "git bisect start$start_files" or
3131 dodie "could not start bisect";
3132
3133 if (defined($replay)) {
3134 run_command "git bisect replay $replay" or
3135 dodie "failed to run replay";
3136 } else {
3137 run_command "git bisect good $good" or
3138 dodie "could not set bisect good to $good";
3139
3140 run_git_bisect "git bisect bad $bad" or
3141 dodie "could not set bisect bad to $bad";
3142 }
3143
3144 if (defined($start)) {
3145 run_command "git checkout $start" or
3146 dodie "failed to checkout $start";
3147 }
3148
3149 my $test;
3150 do {
3151 $result = run_bisect $type;
3152 $test = run_git_bisect "git bisect $result";
3153 print_times;
3154 } while ($test);
3155
3156 run_command "git bisect log" or
3157 dodie "could not capture git bisect log";
3158
3159 run_command "git bisect reset" or
3160 dodie "could not reset git bisect";
3161
3162 doprint "Bad commit was [$bisect_bad_commit]\n";
3163
3164 success $i;
3165}
3166
3167sub assign_configs {
3168 my ($hash, $config) = @_;
3169
3170 doprint "Reading configs from $config\n";
3171
3172 open (IN, $config) or
3173 dodie "Failed to read $config";
3174
3175 while (<IN>) {
3176 chomp;
3177 if (/^((CONFIG\S*)=.*)/) {
3178 ${$hash}{$2} = $1;
3179 } elsif (/^(# (CONFIG\S*) is not set)/) {
3180 ${$hash}{$2} = $1;
3181 }
3182 }
3183
3184 close(IN);
3185}
3186
3187sub process_config_ignore {
3188 my ($config) = @_;
3189
3190 assign_configs \%config_ignore, $config;
3191}
3192
3193sub get_dependencies {
3194 my ($config) = @_;
3195
3196 my $arr = $dependency{$config};
3197 if (!defined($arr)) {
3198 return ();
3199 }
3200
3201 my @deps = @{$arr};
3202
3203 foreach my $dep (@{$arr}) {
3204 print "ADD DEP $dep\n";
3205 @deps = (@deps, get_dependencies $dep);
3206 }
3207
3208 return @deps;
3209}
3210
3211sub save_config {
3212 my ($pc, $file) = @_;
3213
3214 my %configs = %{$pc};
3215
3216 doprint "Saving configs into $file\n";
3217
3218 open(OUT, ">$file") or dodie "Can not write to $file";
3219
3220 foreach my $config (keys %configs) {
3221 print OUT "$configs{$config}\n";
3222 }
3223 close(OUT);
3224}
3225
3226sub create_config {
3227 my ($name, $pc) = @_;
3228
3229 doprint "Creating old config from $name configs\n";
3230
3231 save_config $pc, $output_config;
3232
3233 make_oldconfig;
3234}
3235
3236sub run_config_bisect_test {
3237 my ($type) = @_;
3238
3239 my $ret = run_bisect_test $type, "oldconfig";
3240
3241 if ($bisect_manual) {
3242 $ret = answer_bisect;
3243 }
3244
3245 return $ret;
3246}
3247
3248sub config_bisect_end {
3249 my ($good, $bad) = @_;
3250 my $diffexec = "diff -u";
3251
3252 if (-f "$builddir/scripts/diffconfig") {
3253 $diffexec = "$builddir/scripts/diffconfig";
3254 }
3255 doprint "\n\n***************************************\n";
3256 doprint "No more config bisecting possible.\n";
3257 run_command "$diffexec $good $bad", 1;
3258 doprint "***************************************\n\n";
3259}
3260
3261sub run_config_bisect {
3262 my ($good, $bad, $last_result) = @_;
3263 my $reset = "";
3264 my $cmd;
3265 my $ret;
3266
3267 if (!length($last_result)) {
3268 $reset = "-r";
3269 }
3270 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3271
3272 # config-bisect returns:
3273 # 0 if there is more to bisect
3274 # 1 for finding a good config
3275 # 2 if it can not find any more configs
3276 # -1 (255) on error
3277 if ($run_command_status) {
3278 return $run_command_status;
3279 }
3280
3281 $ret = run_config_bisect_test $config_bisect_type;
3282 if ($ret) {
3283 doprint "NEW GOOD CONFIG ($pass)\n";
3284 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3285 $pass++;
3286 # Return 3 for good config
3287 return 3;
3288 } else {
3289 doprint "NEW BAD CONFIG ($pass)\n";
3290 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3291 $pass++;
3292 # Return 4 for bad config
3293 return 4;
3294 }
3295}
3296
3297sub config_bisect {
3298 my ($i) = @_;
3299
3300 my $good_config;
3301 my $bad_config;
3302
3303 my $type = $config_bisect_type;
3304 my $ret;
3305
3306 $bad_config = $config_bisect;
3307
3308 if (defined($config_bisect_good)) {
3309 $good_config = $config_bisect_good;
3310 } elsif (defined($minconfig)) {
3311 $good_config = $minconfig;
3312 } else {
3313 doprint "No config specified, checking if defconfig works";
3314 $ret = run_bisect_test $type, "defconfig";
3315 if (!$ret) {
3316 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3317 return 1;
3318 }
3319 $good_config = $output_config;
3320 }
3321
3322 if (!defined($config_bisect_exec)) {
3323 # First check the location that ktest.pl ran
3324 my @locations = (
3325 "$pwd/config-bisect.pl",
3326 "$dirname/config-bisect.pl",
3327 "$builddir/tools/testing/ktest/config-bisect.pl",
3328 undef );
3329 foreach my $loc (@locations) {
3330 doprint "loc = $loc\n";
3331 $config_bisect_exec = $loc;
3332 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3333 }
3334 if (!defined($config_bisect_exec)) {
3335 fail "Could not find an executable config-bisect.pl\n",
3336 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3337 return 1;
3338 }
3339 }
3340
3341 # we don't want min configs to cause issues here.
3342 doprint "Disabling 'MIN_CONFIG' for this test\n";
3343 undef $minconfig;
3344
3345 my %good_configs;
3346 my %bad_configs;
3347 my %tmp_configs;
3348
3349 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3350 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3351 if (-f "$tmpdir/good_config.tmp") {
3352 $good_config = "$tmpdir/good_config.tmp";
3353 } else {
3354 $good_config = "$tmpdir/good_config";
3355 }
3356 if (-f "$tmpdir/bad_config.tmp") {
3357 $bad_config = "$tmpdir/bad_config.tmp";
3358 } else {
3359 $bad_config = "$tmpdir/bad_config";
3360 }
3361 }
3362 }
3363 doprint "Run good configs through make oldconfig\n";
3364 assign_configs \%tmp_configs, $good_config;
3365 create_config "$good_config", \%tmp_configs;
3366 $good_config = "$tmpdir/good_config";
3367 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3368
3369 doprint "Run bad configs through make oldconfig\n";
3370 assign_configs \%tmp_configs, $bad_config;
3371 create_config "$bad_config", \%tmp_configs;
3372 $bad_config = "$tmpdir/bad_config";
3373 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3374
3375 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3376 if ($config_bisect_check ne "good") {
3377 doprint "Testing bad config\n";
3378
3379 $ret = run_bisect_test $type, "useconfig:$bad_config";
3380 if ($ret) {
3381 fail "Bad config succeeded when expected to fail!";
3382 return 0;
3383 }
3384 }
3385 if ($config_bisect_check ne "bad") {
3386 doprint "Testing good config\n";
3387
3388 $ret = run_bisect_test $type, "useconfig:$good_config";
3389 if (!$ret) {
3390 fail "Good config failed when expected to succeed!";
3391 return 0;
3392 }
3393 }
3394 }
3395
3396 my $last_run = "";
3397
3398 do {
3399 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3400 if ($ret == 3) {
3401 $last_run = "good";
3402 } elsif ($ret == 4) {
3403 $last_run = "bad";
3404 }
3405 print_times;
3406 } while ($ret == 3 || $ret == 4);
3407
3408 if ($ret == 2) {
3409 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3410 }
3411
3412 return $ret if ($ret < 0);
3413
3414 success $i;
3415}
3416
3417sub patchcheck_reboot {
3418 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3419 reboot_to_good $patchcheck_sleep_time;
3420}
3421
3422sub patchcheck {
3423 my ($i) = @_;
3424
3425 dodie "PATCHCHECK_START[$i] not defined\n"
3426 if (!defined($patchcheck_start));
3427 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3428 if (!defined($patchcheck_type));
3429
3430 my $start = $patchcheck_start;
3431
3432 my $cherry = $patchcheck_cherry;
3433 if (!defined($cherry)) {
3434 $cherry = 0;
3435 }
3436
3437 my $end = "HEAD";
3438 if (defined($patchcheck_end)) {
3439 $end = $patchcheck_end;
3440 } elsif ($cherry) {
3441 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3442 }
3443
3444 # Get the true sha1's since we can use things like HEAD~3
3445 $start = get_sha1($start);
3446 $end = get_sha1($end);
3447
3448 my $type = $patchcheck_type;
3449
3450 # Can't have a test without having a test to run
3451 if ($type eq "test" && !defined($run_test)) {
3452 $type = "boot";
3453 }
3454
3455 if ($cherry) {
3456 open (IN, "git cherry -v $start $end|") or
3457 dodie "could not get git list";
3458 } else {
3459 open (IN, "git log --pretty=oneline $end|") or
3460 dodie "could not get git list";
3461 }
3462
3463 my @list;
3464
3465 while (<IN>) {
3466 chomp;
3467 # git cherry adds a '+' we want to remove
3468 s/^\+ //;
3469 $list[$#list+1] = $_;
3470 last if (/^$start/);
3471 }
3472 close(IN);
3473
3474 if (!$cherry) {
3475 if ($list[$#list] !~ /^$start/) {
3476 fail "SHA1 $start not found";
3477 }
3478
3479 # go backwards in the list
3480 @list = reverse @list;
3481 }
3482
3483 doprint("Going to test the following commits:\n");
3484 foreach my $l (@list) {
3485 doprint "$l\n";
3486 }
3487
3488 my $save_clean = $noclean;
3489 my %ignored_warnings;
3490
3491 if (defined($ignore_warnings)) {
3492 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3493 $ignored_warnings{$sha1} = 1;
3494 }
3495 }
3496
3497 $in_patchcheck = 1;
3498 foreach my $item (@list) {
3499 my $sha1 = $item;
3500 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3501
3502 doprint "\nProcessing commit \"$item\"\n\n";
3503
3504 run_command "git checkout $sha1" or
3505 dodie "Failed to checkout $sha1";
3506
3507 # only clean on the first and last patch
3508 if ($item eq $list[0] ||
3509 $item eq $list[$#list]) {
3510 $noclean = $save_clean;
3511 } else {
3512 $noclean = 1;
3513 }
3514
3515 if (defined($minconfig)) {
3516 build "useconfig:$minconfig" or return 0;
3517 } else {
3518 # ?? no config to use?
3519 build "oldconfig" or return 0;
3520 }
3521
3522 # No need to do per patch checking if warnings file exists
3523 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3524 check_patch_buildlog $sha1 or return 0;
3525 }
3526
3527 check_buildlog or return 0;
3528
3529 next if ($type eq "build");
3530
3531 my $failed = 0;
3532
3533 start_monitor_and_install or $failed = 1;
3534
3535 if (!$failed && $type ne "boot"){
3536 do_run_test or $failed = 1;
3537 }
3538 end_monitor;
3539 if ($failed) {
3540 print_times;
3541 return 0;
3542 }
3543 patchcheck_reboot;
3544 print_times;
3545 }
3546 $in_patchcheck = 0;
3547 success $i;
3548
3549 return 1;
3550}
3551
3552sub add_dep {
3553 # $config depends on $dep
3554 my ($config, $dep) = @_;
3555
3556 if (defined($depends{$config})) {
3557 $depends{$config} .= " " . $dep;
3558 } else {
3559 $depends{$config} = $dep;
3560 }
3561
3562 # record the number of configs depending on $dep
3563 if (defined $depcount{$dep}) {
3564 $depcount{$dep}++;
3565 } else {
3566 $depcount{$dep} = 1;
3567 }
3568}
3569
3570# taken from streamline_config.pl
3571sub read_kconfig {
3572 my ($kconfig) = @_;
3573
3574 my $state = "NONE";
3575 my $config;
3576 my @kconfigs;
3577
3578 my $cont = 0;
3579 my $line;
3580
3581 if (! -f $kconfig) {
3582 doprint "file $kconfig does not exist, skipping\n";
3583 return;
3584 }
3585
3586 open(KIN, "$kconfig")
3587 or dodie "Can't open $kconfig";
3588 while (<KIN>) {
3589 chomp;
3590
3591 # Make sure that lines ending with \ continue
3592 if ($cont) {
3593 $_ = $line . " " . $_;
3594 }
3595
3596 if (s/\\$//) {
3597 $cont = 1;
3598 $line = $_;
3599 next;
3600 }
3601
3602 $cont = 0;
3603
3604 # collect any Kconfig sources
3605 if (/^source\s*"(.*)"/) {
3606 $kconfigs[$#kconfigs+1] = $1;
3607 }
3608
3609 # configs found
3610 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3611 $state = "NEW";
3612 $config = $2;
3613
3614 for (my $i = 0; $i < $iflevel; $i++) {
3615 add_dep $config, $ifdeps[$i];
3616 }
3617
3618 # collect the depends for the config
3619 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3620
3621 add_dep $config, $1;
3622
3623 # Get the configs that select this config
3624 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3625
3626 # selected by depends on config
3627 add_dep $1, $config;
3628
3629 # Check for if statements
3630 } elsif (/^if\s+(.*\S)\s*$/) {
3631 my $deps = $1;
3632 # remove beginning and ending non text
3633 $deps =~ s/^[^a-zA-Z0-9_]*//;
3634 $deps =~ s/[^a-zA-Z0-9_]*$//;
3635
3636 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3637
3638 $ifdeps[$iflevel++] = join ':', @deps;
3639
3640 } elsif (/^endif/) {
3641
3642 $iflevel-- if ($iflevel);
3643
3644 # stop on "help"
3645 } elsif (/^\s*help\s*$/) {
3646 $state = "NONE";
3647 }
3648 }
3649 close(KIN);
3650
3651 # read in any configs that were found.
3652 foreach $kconfig (@kconfigs) {
3653 if (!defined($read_kconfigs{$kconfig})) {
3654 $read_kconfigs{$kconfig} = 1;
3655 read_kconfig("$builddir/$kconfig");
3656 }
3657 }
3658}
3659
3660sub read_depends {
3661 # find out which arch this is by the kconfig file
3662 open (IN, $output_config) or
3663 dodie "Failed to read $output_config";
3664 my $arch;
3665 while (<IN>) {
3666 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3667 $arch = $1;
3668 last;
3669 }
3670 }
3671 close IN;
3672
3673 if (!defined($arch)) {
3674 doprint "Could not find arch from config file\n";
3675 doprint "no dependencies used\n";
3676 return;
3677 }
3678
3679 # arch is really the subarch, we need to know
3680 # what directory to look at.
3681 if ($arch eq "i386" || $arch eq "x86_64") {
3682 $arch = "x86";
3683 }
3684
3685 my $kconfig = "$builddir/arch/$arch/Kconfig";
3686
3687 if (! -f $kconfig && $arch =~ /\d$/) {
3688 my $orig = $arch;
3689 # some subarchs have numbers, truncate them
3690 $arch =~ s/\d*$//;
3691 $kconfig = "$builddir/arch/$arch/Kconfig";
3692 if (! -f $kconfig) {
3693 doprint "No idea what arch dir $orig is for\n";
3694 doprint "no dependencies used\n";
3695 return;
3696 }
3697 }
3698
3699 read_kconfig($kconfig);
3700}
3701
3702sub make_new_config {
3703 my @configs = @_;
3704
3705 open (OUT, ">$output_config")
3706 or dodie "Failed to write $output_config";
3707
3708 foreach my $config (@configs) {
3709 print OUT "$config\n";
3710 }
3711 close OUT;
3712}
3713
3714sub chomp_config {
3715 my ($config) = @_;
3716
3717 $config =~ s/CONFIG_//;
3718
3719 return $config;
3720}
3721
3722sub get_depends {
3723 my ($dep) = @_;
3724
3725 my $kconfig = chomp_config $dep;
3726
3727 $dep = $depends{"$kconfig"};
3728
3729 # the dep string we have saves the dependencies as they
3730 # were found, including expressions like ! && ||. We
3731 # want to split this out into just an array of configs.
3732
3733 my $valid = "A-Za-z_0-9";
3734
3735 my @configs;
3736
3737 while ($dep =~ /[$valid]/) {
3738 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3739 my $conf = "CONFIG_" . $1;
3740
3741 $configs[$#configs + 1] = $conf;
3742
3743 $dep =~ s/^[^$valid]*[$valid]+//;
3744 } else {
3745 dodie "this should never happen";
3746 }
3747 }
3748
3749 return @configs;
3750}
3751
3752sub test_this_config {
3753 my ($config) = @_;
3754
3755 my $found;
3756
3757 # if we already processed this config, skip it
3758 if (defined($processed_configs{$config})) {
3759 return undef;
3760 }
3761 $processed_configs{$config} = 1;
3762
3763 # if this config failed during this round, skip it
3764 if (defined($nochange_config{$config})) {
3765 return undef;
3766 }
3767
3768 my $kconfig = chomp_config $config;
3769
3770 # Test dependencies first
3771 if (defined($depends{"$kconfig"})) {
3772 my @parents = get_depends $config;
3773 foreach my $parent (@parents) {
3774 # if the parent is in the min config, check it first
3775 next if (!defined($min_configs{$parent}));
3776 $found = test_this_config($parent);
3777 if (defined($found)) {
3778 return $found;
3779 }
3780 }
3781 }
3782
3783 # Remove this config from the list of configs
3784 # do a make olddefconfig and then read the resulting
3785 # .config to make sure it is missing the config that
3786 # we had before
3787 my %configs = %min_configs;
3788 $configs{$config} = "# $config is not set";
3789 make_new_config ((values %configs), (values %keep_configs));
3790 make_oldconfig;
3791 delete $configs{$config};
3792 undef %configs;
3793 assign_configs \%configs, $output_config;
3794
3795 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3796 return $config;
3797 }
3798
3799 doprint "disabling config $config did not change .config\n";
3800
3801 $nochange_config{$config} = 1;
3802
3803 return undef;
3804}
3805
3806sub make_min_config {
3807 my ($i) = @_;
3808
3809 my $type = $minconfig_type;
3810 if ($type ne "boot" && $type ne "test") {
3811 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3812 " make_min_config works only with 'boot' and 'test'\n" and return;
3813 }
3814
3815 if (!defined($output_minconfig)) {
3816 fail "OUTPUT_MIN_CONFIG not defined" and return;
3817 }
3818
3819 # If output_minconfig exists, and the start_minconfig
3820 # came from min_config, than ask if we should use
3821 # that instead.
3822 if (-f $output_minconfig && !$start_minconfig_defined) {
3823 print "$output_minconfig exists\n";
3824 if (!defined($use_output_minconfig)) {
3825 if (read_yn " Use it as minconfig?") {
3826 $start_minconfig = $output_minconfig;
3827 }
3828 } elsif ($use_output_minconfig > 0) {
3829 doprint "Using $output_minconfig as MIN_CONFIG\n";
3830 $start_minconfig = $output_minconfig;
3831 } else {
3832 doprint "Set to still use MIN_CONFIG as starting point\n";
3833 }
3834 }
3835
3836 if (!defined($start_minconfig)) {
3837 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3838 }
3839
3840 my $temp_config = "$tmpdir/temp_config";
3841
3842 # First things first. We build an allnoconfig to find
3843 # out what the defaults are that we can't touch.
3844 # Some are selections, but we really can't handle selections.
3845
3846 my $save_minconfig = $minconfig;
3847 undef $minconfig;
3848
3849 run_command "$make allnoconfig" or return 0;
3850
3851 read_depends;
3852
3853 process_config_ignore $output_config;
3854
3855 undef %save_configs;
3856 undef %min_configs;
3857
3858 if (defined($ignore_config)) {
3859 # make sure the file exists
3860 `touch $ignore_config`;
3861 assign_configs \%save_configs, $ignore_config;
3862 }
3863
3864 %keep_configs = %save_configs;
3865
3866 doprint "Load initial configs from $start_minconfig\n";
3867
3868 # Look at the current min configs, and save off all the
3869 # ones that were set via the allnoconfig
3870 assign_configs \%min_configs, $start_minconfig;
3871
3872 my @config_keys = keys %min_configs;
3873
3874 # All configs need a depcount
3875 foreach my $config (@config_keys) {
3876 my $kconfig = chomp_config $config;
3877 if (!defined $depcount{$kconfig}) {
3878 $depcount{$kconfig} = 0;
3879 }
3880 }
3881
3882 # Remove anything that was set by the make allnoconfig
3883 # we shouldn't need them as they get set for us anyway.
3884 foreach my $config (@config_keys) {
3885 # Remove anything in the ignore_config
3886 if (defined($keep_configs{$config})) {
3887 my $file = $ignore_config;
3888 $file =~ s,.*/(.*?)$,$1,;
3889 doprint "$config set by $file ... ignored\n";
3890 delete $min_configs{$config};
3891 next;
3892 }
3893 # But make sure the settings are the same. If a min config
3894 # sets a selection, we do not want to get rid of it if
3895 # it is not the same as what we have. Just move it into
3896 # the keep configs.
3897 if (defined($config_ignore{$config})) {
3898 if ($config_ignore{$config} ne $min_configs{$config}) {
3899 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3900 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3901 $keep_configs{$config} = $min_configs{$config};
3902 } else {
3903 doprint "$config set by allnoconfig ... ignored\n";
3904 }
3905 delete $min_configs{$config};
3906 }
3907 }
3908
3909 my $done = 0;
3910 my $take_two = 0;
3911
3912 while (!$done) {
3913 my $config;
3914 my $found;
3915
3916 # Now disable each config one by one and do a make oldconfig
3917 # till we find a config that changes our list.
3918
3919 my @test_configs = keys %min_configs;
3920
3921 # Sort keys by who is most dependent on
3922 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3923 @test_configs ;
3924
3925 # Put configs that did not modify the config at the end.
3926 my $reset = 1;
3927 for (my $i = 0; $i < $#test_configs; $i++) {
3928 if (!defined($nochange_config{$test_configs[0]})) {
3929 $reset = 0;
3930 last;
3931 }
3932 # This config didn't change the .config last time.
3933 # Place it at the end
3934 my $config = shift @test_configs;
3935 push @test_configs, $config;
3936 }
3937
3938 # if every test config has failed to modify the .config file
3939 # in the past, then reset and start over.
3940 if ($reset) {
3941 undef %nochange_config;
3942 }
3943
3944 undef %processed_configs;
3945
3946 foreach my $config (@test_configs) {
3947
3948 $found = test_this_config $config;
3949
3950 last if (defined($found));
3951
3952 # oh well, try another config
3953 }
3954
3955 if (!defined($found)) {
3956 # we could have failed due to the nochange_config hash
3957 # reset and try again
3958 if (!$take_two) {
3959 undef %nochange_config;
3960 $take_two = 1;
3961 next;
3962 }
3963 doprint "No more configs found that we can disable\n";
3964 $done = 1;
3965 last;
3966 }
3967 $take_two = 0;
3968
3969 $config = $found;
3970
3971 doprint "Test with $config disabled\n";
3972
3973 # set in_bisect to keep build and monitor from dieing
3974 $in_bisect = 1;
3975
3976 my $failed = 0;
3977 build "oldconfig" or $failed = 1;
3978 if (!$failed) {
3979 start_monitor_and_install or $failed = 1;
3980
3981 if ($type eq "test" && !$failed) {
3982 do_run_test or $failed = 1;
3983 }
3984
3985 end_monitor;
3986 }
3987
3988 $in_bisect = 0;
3989
3990 if ($failed) {
3991 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3992 # this config is needed, add it to the ignore list.
3993 $keep_configs{$config} = $min_configs{$config};
3994 $save_configs{$config} = $min_configs{$config};
3995 delete $min_configs{$config};
3996
3997 # update new ignore configs
3998 if (defined($ignore_config)) {
3999 open (OUT, ">$temp_config") or
4000 dodie "Can't write to $temp_config";
4001 foreach my $config (keys %save_configs) {
4002 print OUT "$save_configs{$config}\n";
4003 }
4004 close OUT;
4005 run_command "mv $temp_config $ignore_config" or
4006 dodie "failed to copy update to $ignore_config";
4007 }
4008
4009 } else {
4010 # We booted without this config, remove it from the minconfigs.
4011 doprint "$config is not needed, disabling\n";
4012
4013 delete $min_configs{$config};
4014
4015 # Also disable anything that is not enabled in this config
4016 my %configs;
4017 assign_configs \%configs, $output_config;
4018 my @config_keys = keys %min_configs;
4019 foreach my $config (@config_keys) {
4020 if (!defined($configs{$config})) {
4021 doprint "$config is not set, disabling\n";
4022 delete $min_configs{$config};
4023 }
4024 }
4025
4026 # Save off all the current mandatory configs
4027 open (OUT, ">$temp_config") or
4028 dodie "Can't write to $temp_config";
4029 foreach my $config (keys %keep_configs) {
4030 print OUT "$keep_configs{$config}\n";
4031 }
4032 foreach my $config (keys %min_configs) {
4033 print OUT "$min_configs{$config}\n";
4034 }
4035 close OUT;
4036
4037 run_command "mv $temp_config $output_minconfig" or
4038 dodie "failed to copy update to $output_minconfig";
4039 }
4040
4041 doprint "Reboot and wait $sleep_time seconds\n";
4042 reboot_to_good $sleep_time;
4043 }
4044
4045 success $i;
4046 return 1;
4047}
4048
4049sub make_warnings_file {
4050 my ($i) = @_;
4051
4052 if (!defined($warnings_file)) {
4053 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4054 }
4055
4056 if ($build_type eq "nobuild") {
4057 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4058 }
4059
4060 build $build_type or dodie "Failed to build";
4061
4062 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4063
4064 open(IN, $buildlog) or dodie "Can't open $buildlog";
4065 while (<IN>) {
4066 # Some compilers use UTF-8 extended for quotes
4067 # for distcc heterogeneous systems, this causes issues
4068 s/$utf8_quote/'/g;
4069
4070 if (/$check_build_re/) {
4071 print OUT;
4072 }
4073 }
4074 close(IN);
4075
4076 close(OUT);
4077
4078 success $i;
4079}
4080
4081sub option_defined {
4082 my ($option) = @_;
4083
4084 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4085 return 1;
4086 }
4087
4088 return 0;
4089}
4090
4091sub __set_test_option {
4092 my ($name, $i) = @_;
4093
4094 my $option = "$name\[$i\]";
4095
4096 if (option_defined($option)) {
4097 return $opt{$option};
4098 }
4099
4100 foreach my $test (keys %repeat_tests) {
4101 if ($i >= $test &&
4102 $i < $test + $repeat_tests{$test}) {
4103 $option = "$name\[$test\]";
4104 if (option_defined($option)) {
4105 return $opt{$option};
4106 }
4107 }
4108 }
4109
4110 if (option_defined($name)) {
4111 return $opt{$name};
4112 }
4113
4114 return undef;
4115}
4116
4117sub set_test_option {
4118 my ($name, $i) = @_;
4119
4120 my $option = __set_test_option($name, $i);
4121 return $option if (!defined($option));
4122
4123 return eval_option($name, $option, $i);
4124}
4125
4126sub find_mailer {
4127 my ($mailer) = @_;
4128
4129 my @paths = split /:/, $ENV{PATH};
4130
4131 # sendmail is usually in /usr/sbin
4132 $paths[$#paths + 1] = "/usr/sbin";
4133
4134 foreach my $path (@paths) {
4135 if (-x "$path/$mailer") {
4136 return $path;
4137 }
4138 }
4139
4140 return undef;
4141}
4142
4143sub do_send_mail {
4144 my ($subject, $message, $file) = @_;
4145
4146 if (!defined($mail_path)) {
4147 # find the mailer
4148 $mail_path = find_mailer $mailer;
4149 if (!defined($mail_path)) {
4150 die "\nCan not find $mailer in PATH\n";
4151 }
4152 }
4153
4154 my $header_file = "$tmpdir/header";
4155 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4156 print HEAD "To: $mailto\n";
4157 print HEAD "Subject: $subject\n\n";
4158 print HEAD "$message\n";
4159 close HEAD;
4160
4161 if (!defined($mail_command)) {
4162 if ($mailer eq "mail" || $mailer eq "mailx") {
4163 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4164 } elsif ($mailer eq "sendmail" ) {
4165 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4166 } else {
4167 die "\nYour mailer: $mailer is not supported.\n";
4168 }
4169 }
4170
4171 if (defined($file)) {
4172 $mail_command =~ s/\$BODY_FILE/$file/g;
4173 } else {
4174 $mail_command =~ s/\$BODY_FILE//g;
4175 }
4176
4177 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4178 $mail_command =~ s/\$MAILER/$mailer/g;
4179 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4180 $mail_command =~ s/\$MAILTO/$mailto/g;
4181 $mail_command =~ s/\$SUBJECT/$subject/g;
4182 $mail_command =~ s/\$MESSAGE/$message/g;
4183
4184 my $ret = run_command $mail_command;
4185 if (!$ret && defined($file)) {
4186 # try again without the file
4187 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4188 do_send_email($subject, $message);
4189 }
4190}
4191
4192sub send_email {
4193 if (defined($mailto)) {
4194 if (!defined($mailer)) {
4195 doprint "No email sent: email or mailer not specified in config.\n";
4196 return;
4197 }
4198 do_send_mail @_;
4199 }
4200}
4201
4202sub cancel_test {
4203 if ($email_when_canceled) {
4204 my $name = get_test_name;
4205 send_email("KTEST: Your [$name] test was cancelled",
4206 "Your test started at $script_start_time was cancelled: sig int");
4207 }
4208 die "\nCaught Sig Int, test interrupted: $!\n"
4209}
4210
4211$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4212
4213if ($#ARGV == 0) {
4214 $ktest_config = $ARGV[0];
4215 if (! -f $ktest_config) {
4216 print "$ktest_config does not exist.\n";
4217 if (!read_yn "Create it?") {
4218 exit 0;
4219 }
4220 }
4221}
4222
4223if (! -f $ktest_config) {
4224 $newconfig = 1;
4225 get_test_case;
4226 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4227 print OUT << "EOF"
4228# Generated by ktest.pl
4229#
4230
4231# PWD is a ktest.pl variable that will result in the process working
4232# directory that ktest.pl is executed in.
4233
4234# THIS_DIR is automatically assigned the PWD of the path that generated
4235# the config file. It is best to use this variable when assigning other
4236# directory paths within this directory. This allows you to easily
4237# move the test cases to other locations or to other machines.
4238#
4239THIS_DIR := $variable{"PWD"}
4240
4241# Define each test with TEST_START
4242# The config options below it will override the defaults
4243TEST_START
4244TEST_TYPE = $default{"TEST_TYPE"}
4245
4246DEFAULTS
4247EOF
4248;
4249 close(OUT);
4250}
4251read_config $ktest_config;
4252
4253if (defined($opt{"LOG_FILE"})) {
4254 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4255}
4256
4257# Append any configs entered in manually to the config file.
4258my @new_configs = keys %entered_configs;
4259if ($#new_configs >= 0) {
4260 print "\nAppending entered in configs to $ktest_config\n";
4261 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4262 foreach my $config (@new_configs) {
4263 print OUT "$config = $entered_configs{$config}\n";
4264 $opt{$config} = process_variables($entered_configs{$config});
4265 }
4266}
4267
4268if (defined($opt{"LOG_FILE"})) {
4269 if ($opt{"CLEAR_LOG"}) {
4270 unlink $opt{"LOG_FILE"};
4271 }
4272 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4273 LOG->autoflush(1);
4274}
4275
4276doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4277
4278for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4279
4280 if (!$i) {
4281 doprint "DEFAULT OPTIONS:\n";
4282 } else {
4283 doprint "\nTEST $i OPTIONS";
4284 if (defined($repeat_tests{$i})) {
4285 $repeat = $repeat_tests{$i};
4286 doprint " ITERATE $repeat";
4287 }
4288 doprint "\n";
4289 }
4290
4291 foreach my $option (sort keys %opt) {
4292 if ($option =~ /\[(\d+)\]$/) {
4293 next if ($i != $1);
4294 } else {
4295 next if ($i);
4296 }
4297
4298 doprint "$option = $opt{$option}\n";
4299 }
4300}
4301
4302$SIG{INT} = qw(cancel_test);
4303
4304# First we need to do is the builds
4305for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4306
4307 # Do not reboot on failing test options
4308 $no_reboot = 1;
4309 $reboot_success = 0;
4310
4311 $have_version = 0;
4312
4313 $iteration = $i;
4314
4315 $build_time = 0;
4316 $install_time = 0;
4317 $reboot_time = 0;
4318 $test_time = 0;
4319
4320 undef %force_config;
4321
4322 my $makecmd = set_test_option("MAKE_CMD", $i);
4323
4324 $outputdir = set_test_option("OUTPUT_DIR", $i);
4325 $builddir = set_test_option("BUILD_DIR", $i);
4326
4327 chdir $builddir || dodie "can't change directory to $builddir";
4328
4329 if (!-d $outputdir) {
4330 mkpath($outputdir) or
4331 dodie "can't create $outputdir";
4332 }
4333
4334 $make = "$makecmd O=$outputdir";
4335
4336 # Load all the options into their mapped variable names
4337 foreach my $opt (keys %option_map) {
4338 ${$option_map{$opt}} = set_test_option($opt, $i);
4339 }
4340
4341 $start_minconfig_defined = 1;
4342
4343 # The first test may override the PRE_KTEST option
4344 if ($i == 1) {
4345 if (defined($pre_ktest)) {
4346 doprint "\n";
4347 run_command $pre_ktest;
4348 }
4349 if ($email_when_started) {
4350 my $name = get_test_name;
4351 send_email("KTEST: Your [$name] test was started",
4352 "Your test was started on $script_start_time");
4353 }
4354 }
4355
4356 # Any test can override the POST_KTEST option
4357 # The last test takes precedence.
4358 if (defined($post_ktest)) {
4359 $final_post_ktest = $post_ktest;
4360 }
4361
4362 if (!defined($start_minconfig)) {
4363 $start_minconfig_defined = 0;
4364 $start_minconfig = $minconfig;
4365 }
4366
4367 if (!-d $tmpdir) {
4368 mkpath($tmpdir) or
4369 dodie "can't create $tmpdir";
4370 }
4371
4372 $ENV{"SSH_USER"} = $ssh_user;
4373 $ENV{"MACHINE"} = $machine;
4374
4375 $buildlog = "$tmpdir/buildlog-$machine";
4376 $testlog = "$tmpdir/testlog-$machine";
4377 $dmesg = "$tmpdir/dmesg-$machine";
4378 $output_config = "$outputdir/.config";
4379
4380 if (!$buildonly) {
4381 $target = "$ssh_user\@$machine";
4382 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4383 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4384 } elsif ($reboot_type eq "grub2") {
4385 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4386 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4387 } elsif ($reboot_type eq "syslinux") {
4388 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4389 }
4390 }
4391
4392 my $run_type = $build_type;
4393 if ($test_type eq "patchcheck") {
4394 $run_type = $patchcheck_type;
4395 } elsif ($test_type eq "bisect") {
4396 $run_type = $bisect_type;
4397 } elsif ($test_type eq "config_bisect") {
4398 $run_type = $config_bisect_type;
4399 } elsif ($test_type eq "make_min_config") {
4400 $run_type = "";
4401 } elsif ($test_type eq "make_warnings_file") {
4402 $run_type = "";
4403 }
4404
4405 # mistake in config file?
4406 if (!defined($run_type)) {
4407 $run_type = "ERROR";
4408 }
4409
4410 my $installme = "";
4411 $installme = " no_install" if ($no_install);
4412
4413 my $name = "";
4414
4415 if (defined($test_name)) {
4416 $name = " ($test_name)";
4417 }
4418
4419 doprint "\n\n";
4420
4421 if (defined($opt{"LOG_FILE"})) {
4422 $test_log_start = tell(LOG);
4423 }
4424
4425 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4426
4427 if (defined($pre_test)) {
4428 my $ret = run_command $pre_test;
4429 if (!$ret && defined($pre_test_die) &&
4430 $pre_test_die) {
4431 dodie "failed to pre_test\n";
4432 }
4433 }
4434
4435 unlink $dmesg;
4436 unlink $buildlog;
4437 unlink $testlog;
4438
4439 if (defined($addconfig)) {
4440 my $min = $minconfig;
4441 if (!defined($minconfig)) {
4442 $min = "";
4443 }
4444 run_command "cat $addconfig $min > $tmpdir/add_config" or
4445 dodie "Failed to create temp config";
4446 $minconfig = "$tmpdir/add_config";
4447 }
4448
4449 if (defined($checkout)) {
4450 run_command "git checkout $checkout" or
4451 dodie "failed to checkout $checkout";
4452 }
4453
4454 $no_reboot = 0;
4455
4456 # A test may opt to not reboot the box
4457 if ($reboot_on_success) {
4458 $reboot_success = 1;
4459 }
4460
4461 if ($test_type eq "bisect") {
4462 bisect $i;
4463 next;
4464 } elsif ($test_type eq "config_bisect") {
4465 config_bisect $i;
4466 next;
4467 } elsif ($test_type eq "patchcheck") {
4468 patchcheck $i;
4469 next;
4470 } elsif ($test_type eq "make_min_config") {
4471 make_min_config $i;
4472 next;
4473 } elsif ($test_type eq "make_warnings_file") {
4474 $no_reboot = 1;
4475 make_warnings_file $i;
4476 next;
4477 }
4478
4479 if ($build_type ne "nobuild") {
4480 build $build_type or next;
4481 check_buildlog or next;
4482 }
4483
4484 if ($test_type eq "install") {
4485 get_version;
4486 install;
4487 success $i;
4488 next;
4489 }
4490
4491 if ($test_type ne "build") {
4492 my $failed = 0;
4493 start_monitor_and_install or $failed = 1;
4494
4495 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4496 do_run_test or $failed = 1;
4497 }
4498 end_monitor;
4499 if ($failed) {
4500 print_times;
4501 next;
4502 }
4503 }
4504
4505 print_times;
4506
4507 success $i;
4508}
4509
4510if (defined($final_post_ktest)) {
4511
4512 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4513 run_command $cp_final_post_ktest;
4514}
4515
4516if ($opt{"POWEROFF_ON_SUCCESS"}) {
4517 halt;
4518} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4519 reboot_to_good;
4520} elsif (defined($switch_to_good)) {
4521 # still need to get to the good kernel
4522 run_command $switch_to_good;
4523}
4524
4525doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4526
4527if ($email_when_finished) {
4528 send_email("KTEST: Your test has finished!",
4529 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4530}
4531
4532if (defined($opt{"LOG_FILE"})) {
4533 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4534 close LOG;
4535}
4536
4537exit 0;
4538
4539##
4540# The following are here to standardize tabs/spaces/etc across the most likely editors
4541###
4542
4543# Local Variables:
4544# mode: perl
4545# End:
4546# vim: softtabstop=4
1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14use IO::Handle;
15
16my $VERSION = "0.2";
17
18$| = 1;
19
20my %opt;
21my %repeat_tests;
22my %repeats;
23my %evals;
24
25#default opts
26my %default = (
27 "MAILER" => "sendmail", # default mailer
28 "EMAIL_ON_ERROR" => 1,
29 "EMAIL_WHEN_FINISHED" => 1,
30 "EMAIL_WHEN_CANCELED" => 0,
31 "EMAIL_WHEN_STARTED" => 0,
32 "NUM_TESTS" => 1,
33 "TEST_TYPE" => "build",
34 "BUILD_TYPE" => "oldconfig",
35 "MAKE_CMD" => "make",
36 "CLOSE_CONSOLE_SIGNAL" => "INT",
37 "TIMEOUT" => 120,
38 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
39 "SLEEP_TIME" => 60, # sleep time between tests
40 "BUILD_NOCLEAN" => 0,
41 "REBOOT_ON_ERROR" => 0,
42 "POWEROFF_ON_ERROR" => 0,
43 "REBOOT_ON_SUCCESS" => 1,
44 "POWEROFF_ON_SUCCESS" => 0,
45 "BUILD_OPTIONS" => "",
46 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
47 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
48 "CLEAR_LOG" => 0,
49 "BISECT_MANUAL" => 0,
50 "BISECT_SKIP" => 1,
51 "BISECT_TRIES" => 1,
52 "MIN_CONFIG_TYPE" => "boot",
53 "SUCCESS_LINE" => "login:",
54 "DETECT_TRIPLE_FAULT" => 1,
55 "NO_INSTALL" => 0,
56 "BOOTED_TIMEOUT" => 1,
57 "DIE_ON_FAILURE" => 1,
58 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
59 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
60 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
61 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
62 "REBOOT_RETURN_CODE" => 255,
63 "STOP_AFTER_SUCCESS" => 10,
64 "STOP_AFTER_FAILURE" => 60,
65 "STOP_TEST_AFTER" => 600,
66 "MAX_MONITOR_WAIT" => 1800,
67 "GRUB_REBOOT" => "grub2-reboot",
68 "GRUB_BLS_GET" => "grubby --info=ALL",
69 "SYSLINUX" => "extlinux",
70 "SYSLINUX_PATH" => "/boot/extlinux",
71 "CONNECT_TIMEOUT" => 25,
72
73# required, and we will ask users if they don't have them but we keep the default
74# value something that is common.
75 "REBOOT_TYPE" => "grub",
76 "LOCALVERSION" => "-test",
77 "SSH_USER" => "root",
78 "BUILD_TARGET" => "arch/x86/boot/bzImage",
79 "TARGET_IMAGE" => "/boot/vmlinuz-test",
80
81 "LOG_FILE" => undef,
82 "IGNORE_UNUSED" => 0,
83);
84
85my $test_log_start = 0;
86
87my $ktest_config = "ktest.conf";
88my $version;
89my $have_version = 0;
90my $machine;
91my $last_machine;
92my $ssh_user;
93my $tmpdir;
94my $builddir;
95my $outputdir;
96my $output_config;
97my $test_type;
98my $build_type;
99my $build_options;
100my $final_post_ktest;
101my $pre_ktest;
102my $post_ktest;
103my $pre_test;
104my $pre_test_die;
105my $post_test;
106my $pre_build;
107my $post_build;
108my $pre_build_die;
109my $post_build_die;
110my $reboot_type;
111my $reboot_script;
112my $power_cycle;
113my $reboot;
114my $reboot_return_code;
115my $reboot_on_error;
116my $switch_to_good;
117my $switch_to_test;
118my $poweroff_on_error;
119my $reboot_on_success;
120my $die_on_failure;
121my $powercycle_after_reboot;
122my $poweroff_after_halt;
123my $max_monitor_wait;
124my $ssh_exec;
125my $scp_to_target;
126my $scp_to_target_install;
127my $power_off;
128my $grub_menu;
129my $last_grub_menu;
130my $grub_file;
131my $grub_number;
132my $grub_reboot;
133my $grub_bls_get;
134my $syslinux;
135my $syslinux_path;
136my $syslinux_label;
137my $target;
138my $make;
139my $pre_install;
140my $post_install;
141my $no_install;
142my $noclean;
143my $minconfig;
144my $start_minconfig;
145my $start_minconfig_defined;
146my $output_minconfig;
147my $minconfig_type;
148my $use_output_minconfig;
149my $warnings_file;
150my $ignore_config;
151my $ignore_errors;
152my $addconfig;
153my $in_bisect = 0;
154my $bisect_bad_commit = "";
155my $reverse_bisect;
156my $bisect_manual;
157my $bisect_skip;
158my $bisect_tries;
159my $config_bisect_good;
160my $bisect_ret_good;
161my $bisect_ret_bad;
162my $bisect_ret_skip;
163my $bisect_ret_abort;
164my $bisect_ret_default;
165my $in_patchcheck = 0;
166my $run_test;
167my $buildlog;
168my $testlog;
169my $dmesg;
170my $monitor_fp;
171my $monitor_pid;
172my $monitor_cnt = 0;
173my $sleep_time;
174my $bisect_sleep_time;
175my $patchcheck_sleep_time;
176my $ignore_warnings;
177my $store_failures;
178my $store_successes;
179my $test_name;
180my $timeout;
181my $run_timeout;
182my $connect_timeout;
183my $config_bisect_exec;
184my $booted_timeout;
185my $detect_triplefault;
186my $console;
187my $close_console_signal;
188my $reboot_success_line;
189my $success_line;
190my $stop_after_success;
191my $stop_after_failure;
192my $stop_test_after;
193my $build_target;
194my $target_image;
195my $checkout;
196my $localversion;
197my $iteration = 0;
198my $successes = 0;
199my $stty_orig;
200my $run_command_status = 0;
201
202my $bisect_good;
203my $bisect_bad;
204my $bisect_type;
205my $bisect_start;
206my $bisect_replay;
207my $bisect_files;
208my $bisect_reverse;
209my $bisect_check;
210
211my $config_bisect;
212my $config_bisect_type;
213my $config_bisect_check;
214
215my $patchcheck_type;
216my $patchcheck_start;
217my $patchcheck_cherry;
218my $patchcheck_end;
219
220my $build_time;
221my $install_time;
222my $reboot_time;
223my $test_time;
224
225my $warning_found = 0;
226
227my $pwd;
228my $dirname = $FindBin::Bin;
229
230my $mailto;
231my $mailer;
232my $mail_path;
233my $mail_max_size;
234my $mail_command;
235my $email_on_error;
236my $email_when_finished;
237my $email_when_started;
238my $email_when_canceled;
239
240my $script_start_time = localtime();
241
242# set when a test is something other that just building or install
243# which would require more options.
244my $buildonly = 1;
245
246# tell build not to worry about warnings, even when WARNINGS_FILE is set
247my $warnings_ok = 0;
248
249# set when creating a new config
250my $newconfig = 0;
251
252my %entered_configs;
253my %config_help;
254my %variable;
255
256# force_config is the list of configs that we force enabled (or disabled)
257# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
258my %force_config;
259
260# do not force reboots on config problems
261my $no_reboot = 1;
262
263# reboot on success
264my $reboot_success = 0;
265
266my %option_map = (
267 "MAILTO" => \$mailto,
268 "MAILER" => \$mailer,
269 "MAIL_PATH" => \$mail_path,
270 "MAIL_MAX_SIZE" => \$mail_max_size,
271 "MAIL_COMMAND" => \$mail_command,
272 "EMAIL_ON_ERROR" => \$email_on_error,
273 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
274 "EMAIL_WHEN_STARTED" => \$email_when_started,
275 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
276 "MACHINE" => \$machine,
277 "SSH_USER" => \$ssh_user,
278 "TMP_DIR" => \$tmpdir,
279 "OUTPUT_DIR" => \$outputdir,
280 "BUILD_DIR" => \$builddir,
281 "TEST_TYPE" => \$test_type,
282 "PRE_KTEST" => \$pre_ktest,
283 "POST_KTEST" => \$post_ktest,
284 "PRE_TEST" => \$pre_test,
285 "PRE_TEST_DIE" => \$pre_test_die,
286 "POST_TEST" => \$post_test,
287 "BUILD_TYPE" => \$build_type,
288 "BUILD_OPTIONS" => \$build_options,
289 "PRE_BUILD" => \$pre_build,
290 "POST_BUILD" => \$post_build,
291 "PRE_BUILD_DIE" => \$pre_build_die,
292 "POST_BUILD_DIE" => \$post_build_die,
293 "POWER_CYCLE" => \$power_cycle,
294 "REBOOT" => \$reboot,
295 "REBOOT_RETURN_CODE" => \$reboot_return_code,
296 "BUILD_NOCLEAN" => \$noclean,
297 "MIN_CONFIG" => \$minconfig,
298 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
299 "START_MIN_CONFIG" => \$start_minconfig,
300 "MIN_CONFIG_TYPE" => \$minconfig_type,
301 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
302 "WARNINGS_FILE" => \$warnings_file,
303 "IGNORE_CONFIG" => \$ignore_config,
304 "TEST" => \$run_test,
305 "ADD_CONFIG" => \$addconfig,
306 "REBOOT_TYPE" => \$reboot_type,
307 "GRUB_MENU" => \$grub_menu,
308 "GRUB_FILE" => \$grub_file,
309 "GRUB_REBOOT" => \$grub_reboot,
310 "GRUB_BLS_GET" => \$grub_bls_get,
311 "SYSLINUX" => \$syslinux,
312 "SYSLINUX_PATH" => \$syslinux_path,
313 "SYSLINUX_LABEL" => \$syslinux_label,
314 "PRE_INSTALL" => \$pre_install,
315 "POST_INSTALL" => \$post_install,
316 "NO_INSTALL" => \$no_install,
317 "REBOOT_SCRIPT" => \$reboot_script,
318 "REBOOT_ON_ERROR" => \$reboot_on_error,
319 "SWITCH_TO_GOOD" => \$switch_to_good,
320 "SWITCH_TO_TEST" => \$switch_to_test,
321 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
322 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
323 "DIE_ON_FAILURE" => \$die_on_failure,
324 "POWER_OFF" => \$power_off,
325 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
326 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
327 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
328 "SLEEP_TIME" => \$sleep_time,
329 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
330 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
331 "IGNORE_WARNINGS" => \$ignore_warnings,
332 "IGNORE_ERRORS" => \$ignore_errors,
333 "BISECT_MANUAL" => \$bisect_manual,
334 "BISECT_SKIP" => \$bisect_skip,
335 "BISECT_TRIES" => \$bisect_tries,
336 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
337 "BISECT_RET_GOOD" => \$bisect_ret_good,
338 "BISECT_RET_BAD" => \$bisect_ret_bad,
339 "BISECT_RET_SKIP" => \$bisect_ret_skip,
340 "BISECT_RET_ABORT" => \$bisect_ret_abort,
341 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
342 "STORE_FAILURES" => \$store_failures,
343 "STORE_SUCCESSES" => \$store_successes,
344 "TEST_NAME" => \$test_name,
345 "TIMEOUT" => \$timeout,
346 "RUN_TIMEOUT" => \$run_timeout,
347 "CONNECT_TIMEOUT" => \$connect_timeout,
348 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
349 "BOOTED_TIMEOUT" => \$booted_timeout,
350 "CONSOLE" => \$console,
351 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
352 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
353 "SUCCESS_LINE" => \$success_line,
354 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
355 "STOP_AFTER_SUCCESS" => \$stop_after_success,
356 "STOP_AFTER_FAILURE" => \$stop_after_failure,
357 "STOP_TEST_AFTER" => \$stop_test_after,
358 "BUILD_TARGET" => \$build_target,
359 "SSH_EXEC" => \$ssh_exec,
360 "SCP_TO_TARGET" => \$scp_to_target,
361 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
362 "CHECKOUT" => \$checkout,
363 "TARGET_IMAGE" => \$target_image,
364 "LOCALVERSION" => \$localversion,
365
366 "BISECT_GOOD" => \$bisect_good,
367 "BISECT_BAD" => \$bisect_bad,
368 "BISECT_TYPE" => \$bisect_type,
369 "BISECT_START" => \$bisect_start,
370 "BISECT_REPLAY" => \$bisect_replay,
371 "BISECT_FILES" => \$bisect_files,
372 "BISECT_REVERSE" => \$bisect_reverse,
373 "BISECT_CHECK" => \$bisect_check,
374
375 "CONFIG_BISECT" => \$config_bisect,
376 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
377 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
378
379 "PATCHCHECK_TYPE" => \$patchcheck_type,
380 "PATCHCHECK_START" => \$patchcheck_start,
381 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
382 "PATCHCHECK_END" => \$patchcheck_end,
383);
384
385# Options may be used by other options, record them.
386my %used_options;
387
388# default variables that can be used
389chomp ($variable{"PWD"} = `pwd`);
390$pwd = $variable{"PWD"};
391
392$config_help{"MACHINE"} = << "EOF"
393 The machine hostname that you will test.
394 For build only tests, it is still needed to differentiate log files.
395EOF
396 ;
397$config_help{"SSH_USER"} = << "EOF"
398 The box is expected to have ssh on normal bootup, provide the user
399 (most likely root, since you need privileged operations)
400EOF
401 ;
402$config_help{"BUILD_DIR"} = << "EOF"
403 The directory that contains the Linux source code (full path).
404 You can use \${PWD} that will be the path where ktest.pl is run, or use
405 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
406EOF
407 ;
408$config_help{"OUTPUT_DIR"} = << "EOF"
409 The directory that the objects will be built (full path).
410 (can not be same as BUILD_DIR)
411 You can use \${PWD} that will be the path where ktest.pl is run, or use
412 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
413EOF
414 ;
415$config_help{"BUILD_TARGET"} = << "EOF"
416 The location of the compiled file to copy to the target.
417 (relative to OUTPUT_DIR)
418EOF
419 ;
420$config_help{"BUILD_OPTIONS"} = << "EOF"
421 Options to add to \"make\" when building.
422 i.e. -j20
423EOF
424 ;
425$config_help{"TARGET_IMAGE"} = << "EOF"
426 The place to put your image on the test machine.
427EOF
428 ;
429$config_help{"POWER_CYCLE"} = << "EOF"
430 A script or command to reboot the box.
431
432 Here is a digital loggers power switch example
433 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
434
435 Here is an example to reboot a virtual box on the current host
436 with the name "Guest".
437 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
438EOF
439 ;
440$config_help{"CONSOLE"} = << "EOF"
441 The script or command that reads the console
442
443 If you use ttywatch server, something like the following would work.
444CONSOLE = nc -d localhost 3001
445
446 For a virtual machine with guest name "Guest".
447CONSOLE = virsh console Guest
448EOF
449 ;
450$config_help{"LOCALVERSION"} = << "EOF"
451 Required version ending to differentiate the test
452 from other linux builds on the system.
453EOF
454 ;
455$config_help{"REBOOT_TYPE"} = << "EOF"
456 Way to reboot the box to the test kernel.
457 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
458
459 If you specify grub, it will assume grub version 1
460 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
461 and select that target to reboot to the kernel. If this is not
462 your setup, then specify "script" and have a command or script
463 specified in REBOOT_SCRIPT to boot to the target.
464
465 The entry in /boot/grub/menu.lst must be entered in manually.
466 The test will not modify that file.
467
468 If you specify grub2, then you also need to specify both \$GRUB_MENU
469 and \$GRUB_FILE.
470
471 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
472
473 If you specify syslinux, then you may use SYSLINUX to define the syslinux
474 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
475 the syslinux install (defaults to /boot/extlinux). But you have to specify
476 SYSLINUX_LABEL to define the label to boot to for the test kernel.
477EOF
478 ;
479$config_help{"GRUB_MENU"} = << "EOF"
480 The grub title name for the test kernel to boot
481 (Only mandatory if REBOOT_TYPE = grub or grub2)
482
483 Note, ktest.pl will not update the grub menu.lst, you need to
484 manually add an option for the test. ktest.pl will search
485 the grub menu.lst for this option to find what kernel to
486 reboot into.
487
488 For example, if in the /boot/grub/menu.lst the test kernel title has:
489 title Test Kernel
490 kernel vmlinuz-test
491 GRUB_MENU = Test Kernel
492
493 For grub2, a search of \$GRUB_FILE is performed for the lines
494 that begin with "menuentry". It will not detect submenus. The
495 menu must be a non-nested menu. Add the quotes used in the menu
496 to guarantee your selection, as the first menuentry with the content
497 of \$GRUB_MENU that is found will be used.
498
499 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
500 command for the lines that begin with "title".
501EOF
502 ;
503$config_help{"GRUB_FILE"} = << "EOF"
504 If grub2 is used, the full path for the grub.cfg file is placed
505 here. Use something like /boot/grub2/grub.cfg to search.
506EOF
507 ;
508$config_help{"SYSLINUX_LABEL"} = << "EOF"
509 If syslinux is used, the label that boots the target kernel must
510 be specified with SYSLINUX_LABEL.
511EOF
512 ;
513$config_help{"REBOOT_SCRIPT"} = << "EOF"
514 A script to reboot the target into the test kernel
515 (Only mandatory if REBOOT_TYPE = script)
516EOF
517 ;
518
519# used with process_expression()
520my $d = 0;
521
522# defined before get_test_name()
523my $in_die = 0;
524
525# defined before process_warning_line()
526my $check_build_re = ".*:.*(warning|error|Error):.*";
527my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
528
529# defined before child_finished()
530my $child_done;
531
532# config_ignore holds the configs that were set (or unset) for
533# a good config and we will ignore these configs for the rest
534# of a config bisect. These configs stay as they were.
535my %config_ignore;
536
537# config_set holds what all configs were set as.
538my %config_set;
539
540# config_off holds the set of configs that the bad config had disabled.
541# We need to record them and set them in the .config when running
542# olddefconfig, because olddefconfig keeps the defaults.
543my %config_off;
544
545# config_off_tmp holds a set of configs to turn off for now
546my @config_off_tmp;
547
548# config_list is the set of configs that are being tested
549my %config_list;
550my %null_config;
551
552my %dependency;
553
554# found above run_config_bisect()
555my $pass = 1;
556
557# found above add_dep()
558
559my %depends;
560my %depcount;
561my $iflevel = 0;
562my @ifdeps;
563
564# prevent recursion
565my %read_kconfigs;
566
567# found above test_this_config()
568my %min_configs;
569my %keep_configs;
570my %save_configs;
571my %processed_configs;
572my %nochange_config;
573
574#
575# These are first defined here, main function later on
576#
577sub run_command;
578sub start_monitor;
579sub end_monitor;
580sub wait_for_monitor;
581
582sub _logit {
583 if (defined($opt{"LOG_FILE"})) {
584 print LOG @_;
585 }
586}
587
588sub logit {
589 if (defined($opt{"LOG_FILE"})) {
590 _logit @_;
591 } else {
592 print @_;
593 }
594}
595
596sub doprint {
597 print @_;
598 _logit @_;
599}
600
601sub read_prompt {
602 my ($cancel, $prompt) = @_;
603
604 my $ans;
605
606 for (;;) {
607 if ($cancel) {
608 print "$prompt [y/n/C] ";
609 } else {
610 print "$prompt [Y/n] ";
611 }
612 $ans = <STDIN>;
613 chomp $ans;
614 if ($ans =~ /^\s*$/) {
615 if ($cancel) {
616 $ans = "c";
617 } else {
618 $ans = "y";
619 }
620 }
621 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
622 if ($cancel) {
623 last if ($ans =~ /^c$/i);
624 print "Please answer either 'y', 'n' or 'c'.\n";
625 } else {
626 print "Please answer either 'y' or 'n'.\n";
627 }
628 }
629 if ($ans =~ /^c/i) {
630 exit;
631 }
632 if ($ans !~ /^y$/i) {
633 return 0;
634 }
635 return 1;
636}
637
638sub read_yn {
639 my ($prompt) = @_;
640
641 return read_prompt 0, $prompt;
642}
643
644sub read_ync {
645 my ($prompt) = @_;
646
647 return read_prompt 1, $prompt;
648}
649
650sub get_mandatory_config {
651 my ($config) = @_;
652 my $ans;
653
654 return if (defined($opt{$config}));
655
656 if (defined($config_help{$config})) {
657 print "\n";
658 print $config_help{$config};
659 }
660
661 for (;;) {
662 print "$config = ";
663 if (defined($default{$config}) && length($default{$config})) {
664 print "\[$default{$config}\] ";
665 }
666 $ans = <STDIN>;
667 $ans =~ s/^\s*(.*\S)\s*$/$1/;
668 if ($ans =~ /^\s*$/) {
669 if ($default{$config}) {
670 $ans = $default{$config};
671 } else {
672 print "Your answer can not be blank\n";
673 next;
674 }
675 }
676 $entered_configs{$config} = ${ans};
677 last;
678 }
679}
680
681sub show_time {
682 my ($time) = @_;
683
684 my $hours = 0;
685 my $minutes = 0;
686
687 if ($time > 3600) {
688 $hours = int($time / 3600);
689 $time -= $hours * 3600;
690 }
691 if ($time > 60) {
692 $minutes = int($time / 60);
693 $time -= $minutes * 60;
694 }
695
696 if ($hours > 0) {
697 doprint "$hours hour";
698 doprint "s" if ($hours > 1);
699 doprint " ";
700 }
701
702 if ($minutes > 0) {
703 doprint "$minutes minute";
704 doprint "s" if ($minutes > 1);
705 doprint " ";
706 }
707
708 doprint "$time second";
709 doprint "s" if ($time != 1);
710}
711
712sub print_times {
713 doprint "\n";
714 if ($build_time) {
715 doprint "Build time: ";
716 show_time($build_time);
717 doprint "\n";
718 }
719 if ($install_time) {
720 doprint "Install time: ";
721 show_time($install_time);
722 doprint "\n";
723 }
724 if ($reboot_time) {
725 doprint "Reboot time: ";
726 show_time($reboot_time);
727 doprint "\n";
728 }
729 if ($test_time) {
730 doprint "Test time: ";
731 show_time($test_time);
732 doprint "\n";
733 }
734 if ($warning_found) {
735 doprint "\n*** WARNING";
736 doprint "S" if ($warning_found > 1);
737 doprint " found in build: $warning_found ***\n\n";
738 }
739
740 # reset for iterations like bisect
741 $build_time = 0;
742 $install_time = 0;
743 $reboot_time = 0;
744 $test_time = 0;
745 $warning_found = 0;
746}
747
748sub get_mandatory_configs {
749 get_mandatory_config("MACHINE");
750 get_mandatory_config("BUILD_DIR");
751 get_mandatory_config("OUTPUT_DIR");
752
753 if ($newconfig) {
754 get_mandatory_config("BUILD_OPTIONS");
755 }
756
757 # options required for other than just building a kernel
758 if (!$buildonly) {
759 get_mandatory_config("POWER_CYCLE");
760 get_mandatory_config("CONSOLE");
761 }
762
763 # options required for install and more
764 if ($buildonly != 1) {
765 get_mandatory_config("SSH_USER");
766 get_mandatory_config("BUILD_TARGET");
767 get_mandatory_config("TARGET_IMAGE");
768 }
769
770 get_mandatory_config("LOCALVERSION");
771
772 return if ($buildonly);
773
774 my $rtype = $opt{"REBOOT_TYPE"};
775
776 if (!defined($rtype)) {
777 if (!defined($opt{"GRUB_MENU"})) {
778 get_mandatory_config("REBOOT_TYPE");
779 $rtype = $entered_configs{"REBOOT_TYPE"};
780 } else {
781 $rtype = "grub";
782 }
783 }
784
785 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
786 get_mandatory_config("GRUB_MENU");
787 }
788
789 if ($rtype eq "grub2") {
790 get_mandatory_config("GRUB_MENU");
791 get_mandatory_config("GRUB_FILE");
792 }
793
794 if ($rtype eq "syslinux") {
795 get_mandatory_config("SYSLINUX_LABEL");
796 }
797}
798
799sub process_variables {
800 my ($value, $remove_undef) = @_;
801 my $retval = "";
802
803 # We want to check for '\', and it is just easier
804 # to check the previous character of '$' and not need
805 # to worry if '$' is the first character. By adding
806 # a space to $value, we can just check [^\\]\$ and
807 # it will still work.
808 $value = " $value";
809
810 while ($value =~ /(.*?[^\\])\$\{([^\{]*?)\}(.*)/) {
811 my $begin = $1;
812 my $var = $2;
813 my $end = $3;
814 # append beginning of value to retval
815 $retval = "$retval$begin";
816 if ($var =~ s/^shell\s+//) {
817 $retval = `$var`;
818 if ($?) {
819 doprint "WARNING: $var returned an error\n";
820 } else {
821 chomp $retval;
822 }
823 } elsif (defined($variable{$var})) {
824 $retval = "$retval$variable{$var}";
825 } elsif (defined($remove_undef) && $remove_undef) {
826 # for if statements, any variable that is not defined,
827 # we simple convert to 0
828 $retval = "${retval}0";
829 } else {
830 # put back the origin piece, but with $#### to not reprocess it
831 $retval = "$retval\$####\{$var\}";
832 # This could be an option that is used later, save
833 # it so we don't warn if this option is not one of
834 # ktests options.
835 $used_options{$var} = 1;
836 }
837 $value = "$retval$end";
838 $retval = "";
839 }
840 $retval = $value;
841
842 # Convert the saved variables with $####{var} back to ${var}
843 $retval =~ s/\$####/\$/g;
844
845 # remove the space added in the beginning
846 $retval =~ s/ //;
847
848 return "$retval";
849}
850
851sub set_value {
852 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
853
854 my $prvalue = process_variables($rvalue);
855
856 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
857 $prvalue !~ /^(config_|)bisect$/ &&
858 $prvalue !~ /^build$/ &&
859 $prvalue !~ /^make_warnings_file$/ &&
860 $buildonly) {
861
862 # Note if a test is something other than build, then we
863 # will need other mandatory options.
864 if ($prvalue ne "install") {
865 $buildonly = 0;
866 } else {
867 # install still limits some mandatory options.
868 $buildonly = 2;
869 }
870 }
871
872 if (defined($opt{$lvalue})) {
873 if (!$override || defined(${$overrides}{$lvalue})) {
874 my $extra = "";
875 if ($override) {
876 $extra = "In the same override section!\n";
877 }
878 die "$name: $.: Option $lvalue defined more than once!\n$extra";
879 }
880 ${$overrides}{$lvalue} = $prvalue;
881 }
882
883 $opt{$lvalue} = $prvalue;
884}
885
886sub set_eval {
887 my ($lvalue, $rvalue, $name) = @_;
888
889 my $prvalue = process_variables($rvalue);
890 my $arr;
891
892 if (defined($evals{$lvalue})) {
893 $arr = $evals{$lvalue};
894 } else {
895 $arr = [];
896 $evals{$lvalue} = $arr;
897 }
898
899 push @{$arr}, $rvalue;
900}
901
902sub set_variable {
903 my ($lvalue, $rvalue) = @_;
904
905 if ($rvalue =~ /^\s*$/) {
906 delete $variable{$lvalue};
907 } else {
908 $rvalue = process_variables($rvalue);
909 $variable{$lvalue} = $rvalue;
910 }
911}
912
913sub process_compare {
914 my ($lval, $cmp, $rval) = @_;
915
916 # remove whitespace
917
918 $lval =~ s/^\s*//;
919 $lval =~ s/\s*$//;
920
921 $rval =~ s/^\s*//;
922 $rval =~ s/\s*$//;
923
924 if ($cmp eq "==") {
925 return $lval eq $rval;
926 } elsif ($cmp eq "!=") {
927 return $lval ne $rval;
928 } elsif ($cmp eq "=~") {
929 return $lval =~ m/$rval/;
930 } elsif ($cmp eq "!~") {
931 return $lval !~ m/$rval/;
932 }
933
934 my $statement = "$lval $cmp $rval";
935 my $ret = eval $statement;
936
937 # $@ stores error of eval
938 if ($@) {
939 return -1;
940 }
941
942 return $ret;
943}
944
945sub value_defined {
946 my ($val) = @_;
947
948 return defined($variable{$2}) ||
949 defined($opt{$2});
950}
951
952sub process_expression {
953 my ($name, $val) = @_;
954
955 my $c = $d++;
956
957 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
958 my $express = $1;
959
960 if (process_expression($name, $express)) {
961 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
962 } else {
963 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
964 }
965 }
966
967 $d--;
968 my $OR = "\\|\\|";
969 my $AND = "\\&\\&";
970
971 while ($val =~ s/^(.*?)($OR|$AND)//) {
972 my $express = $1;
973 my $op = $2;
974
975 if (process_expression($name, $express)) {
976 if ($op eq "||") {
977 return 1;
978 }
979 } else {
980 if ($op eq "&&") {
981 return 0;
982 }
983 }
984 }
985
986 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
987 my $ret = process_compare($1, $2, $3);
988 if ($ret < 0) {
989 die "$name: $.: Unable to process comparison\n";
990 }
991 return $ret;
992 }
993
994 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
995 if (defined $1) {
996 return !value_defined($2);
997 } else {
998 return value_defined($2);
999 }
1000 }
1001
1002 if ($val =~ s/^\s*NOT\s+(.*)//) {
1003 my $express = $1;
1004 my $ret = process_expression($name, $express);
1005 return !$ret;
1006 }
1007
1008 if ($val =~ /^\s*0\s*$/) {
1009 return 0;
1010 } elsif ($val =~ /^\s*\d+\s*$/) {
1011 return 1;
1012 }
1013
1014 die ("$name: $.: Undefined content $val in if statement\n");
1015}
1016
1017sub process_if {
1018 my ($name, $value) = @_;
1019
1020 # Convert variables and replace undefined ones with 0
1021 my $val = process_variables($value, 1);
1022 my $ret = process_expression $name, $val;
1023
1024 return $ret;
1025}
1026
1027sub __read_config {
1028 my ($config, $current_test_num) = @_;
1029
1030 my $in;
1031 open($in, $config) || die "can't read file $config";
1032
1033 my $name = $config;
1034 $name =~ s,.*/(.*),$1,;
1035
1036 my $test_num = $$current_test_num;
1037 my $default = 1;
1038 my $repeat = 1;
1039 my $num_tests_set = 0;
1040 my $skip = 0;
1041 my $rest;
1042 my $line;
1043 my $test_case = 0;
1044 my $if = 0;
1045 my $if_set = 0;
1046 my $override = 0;
1047
1048 my %overrides;
1049
1050 while (<$in>) {
1051
1052 # ignore blank lines and comments
1053 next if (/^\s*$/ || /\s*\#/);
1054
1055 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1056
1057 my $type = $1;
1058 $rest = $2;
1059 $line = $2;
1060
1061 my $old_test_num;
1062 my $old_repeat;
1063 $override = 0;
1064
1065 if ($type eq "TEST_START") {
1066 if ($num_tests_set) {
1067 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1068 }
1069
1070 $old_test_num = $test_num;
1071 $old_repeat = $repeat;
1072
1073 $test_num += $repeat;
1074 $default = 0;
1075 $repeat = 1;
1076 } else {
1077 $default = 1;
1078 }
1079
1080 # If SKIP is anywhere in the line, the command will be skipped
1081 if ($rest =~ s/\s+SKIP\b//) {
1082 $skip = 1;
1083 } else {
1084 $test_case = 1;
1085 $skip = 0;
1086 }
1087
1088 if ($rest =~ s/\sELSE\b//) {
1089 if (!$if) {
1090 die "$name: $.: ELSE found with out matching IF section\n$_";
1091 }
1092 $if = 0;
1093
1094 if ($if_set) {
1095 $skip = 1;
1096 } else {
1097 $skip = 0;
1098 }
1099 }
1100
1101 if ($rest =~ s/\sIF\s+(.*)//) {
1102 if (process_if($name, $1)) {
1103 $if_set = 1;
1104 } else {
1105 $skip = 1;
1106 }
1107 $if = 1;
1108 } else {
1109 $if = 0;
1110 $if_set = 0;
1111 }
1112
1113 if (!$skip) {
1114 if ($type eq "TEST_START") {
1115 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1116 $repeat = $1;
1117 $repeat_tests{"$test_num"} = $repeat;
1118 }
1119 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1120 # DEFAULT only
1121 $override = 1;
1122 # Clear previous overrides
1123 %overrides = ();
1124 }
1125 }
1126
1127 if (!$skip && $rest !~ /^\s*$/) {
1128 die "$name: $.: Garbage found after $type\n$_";
1129 }
1130
1131 if ($skip && $type eq "TEST_START") {
1132 $test_num = $old_test_num;
1133 $repeat = $old_repeat;
1134 }
1135 } elsif (/^\s*ELSE\b(.*)$/) {
1136 if (!$if) {
1137 die "$name: $.: ELSE found with out matching IF section\n$_";
1138 }
1139 $rest = $1;
1140 if ($if_set) {
1141 $skip = 1;
1142 $rest = "";
1143 } else {
1144 $skip = 0;
1145
1146 if ($rest =~ /\sIF\s+(.*)/) {
1147 # May be a ELSE IF section.
1148 if (process_if($name, $1)) {
1149 $if_set = 1;
1150 } else {
1151 $skip = 1;
1152 }
1153 $rest = "";
1154 } else {
1155 $if = 0;
1156 }
1157 }
1158
1159 if ($rest !~ /^\s*$/) {
1160 die "$name: $.: Garbage found after DEFAULTS\n$_";
1161 }
1162
1163 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1164
1165 next if ($skip);
1166
1167 if (!$default) {
1168 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1169 }
1170
1171 my $file = process_variables($1);
1172
1173 if ($file !~ m,^/,) {
1174 # check the path of the config file first
1175 if ($config =~ m,(.*)/,) {
1176 if (-f "$1/$file") {
1177 $file = "$1/$file";
1178 }
1179 }
1180 }
1181
1182 if ( ! -r $file ) {
1183 die "$name: $.: Can't read file $file\n$_";
1184 }
1185
1186 if (__read_config($file, \$test_num)) {
1187 $test_case = 1;
1188 }
1189
1190 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1191
1192 next if ($skip);
1193
1194 my $lvalue = $1;
1195 my $rvalue = $2;
1196
1197 if ($default || $lvalue =~ /\[\d+\]$/) {
1198 set_eval($lvalue, $rvalue, $name);
1199 } else {
1200 my $val = "$lvalue\[$test_num\]";
1201 set_eval($val, $rvalue, $name);
1202 }
1203
1204 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1205
1206 next if ($skip);
1207
1208 my $lvalue = $1;
1209 my $rvalue = $2;
1210
1211 if (!$default &&
1212 ($lvalue eq "NUM_TESTS" ||
1213 $lvalue eq "LOG_FILE" ||
1214 $lvalue eq "CLEAR_LOG")) {
1215 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1216 }
1217
1218 if ($lvalue eq "NUM_TESTS") {
1219 if ($test_num) {
1220 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1221 }
1222 if (!$default) {
1223 die "$name: $.: NUM_TESTS must be set in default section\n";
1224 }
1225 $num_tests_set = 1;
1226 }
1227
1228 if ($default || $lvalue =~ /\[\d+\]$/) {
1229 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1230 } else {
1231 my $val = "$lvalue\[$test_num\]";
1232 set_value($val, $rvalue, $override, \%overrides, $name);
1233
1234 if ($repeat > 1) {
1235 $repeats{$val} = $repeat;
1236 }
1237 }
1238 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1239 next if ($skip);
1240
1241 my $lvalue = $1;
1242 my $rvalue = $2;
1243
1244 # process config variables.
1245 # Config variables are only active while reading the
1246 # config and can be defined anywhere. They also ignore
1247 # TEST_START and DEFAULTS, but are skipped if they are in
1248 # on of these sections that have SKIP defined.
1249 # The save variable can be
1250 # defined multiple times and the new one simply overrides
1251 # the previous one.
1252 set_variable($lvalue, $rvalue);
1253
1254 } else {
1255 die "$name: $.: Garbage found in config\n$_";
1256 }
1257 }
1258
1259 if ($test_num) {
1260 $test_num += $repeat - 1;
1261 $opt{"NUM_TESTS"} = $test_num;
1262 }
1263
1264 close($in);
1265
1266 $$current_test_num = $test_num;
1267
1268 return $test_case;
1269}
1270
1271sub get_test_case {
1272 print "What test case would you like to run?\n";
1273 print " (build, install or boot)\n";
1274 print " Other tests are available but require editing ktest.conf\n";
1275 print " (see tools/testing/ktest/sample.conf)\n";
1276 my $ans = <STDIN>;
1277 chomp $ans;
1278 $default{"TEST_TYPE"} = $ans;
1279}
1280
1281sub read_config {
1282 my ($config) = @_;
1283
1284 my $test_case;
1285 my $test_num = 0;
1286
1287 $test_case = __read_config $config, \$test_num;
1288
1289 # make sure we have all mandatory configs
1290 get_mandatory_configs;
1291
1292 # was a test specified?
1293 if (!$test_case) {
1294 print "No test case specified.\n";
1295 get_test_case;
1296 }
1297
1298 # set any defaults
1299
1300 foreach my $default (keys %default) {
1301 if (!defined($opt{$default})) {
1302 $opt{$default} = $default{$default};
1303 }
1304 }
1305
1306 if ($opt{"IGNORE_UNUSED"} == 1) {
1307 return;
1308 }
1309
1310 my %not_used;
1311
1312 # check if there are any stragglers (typos?)
1313 foreach my $option (keys %opt) {
1314 my $op = $option;
1315 # remove per test labels.
1316 $op =~ s/\[.*\]//;
1317 if (!exists($option_map{$op}) &&
1318 !exists($default{$op}) &&
1319 !exists($used_options{$op})) {
1320 $not_used{$op} = 1;
1321 }
1322 }
1323
1324 if (%not_used) {
1325 my $s = "s are";
1326 $s = " is" if (keys %not_used == 1);
1327 print "The following option$s not used; could be a typo:\n";
1328 foreach my $option (keys %not_used) {
1329 print "$option\n";
1330 }
1331 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1332 if (!read_yn "Do you want to continue?") {
1333 exit -1;
1334 }
1335 }
1336}
1337
1338sub __eval_option {
1339 my ($name, $option, $i) = @_;
1340
1341 # Add space to evaluate the character before $
1342 $option = " $option";
1343 my $retval = "";
1344 my $repeated = 0;
1345 my $parent = 0;
1346
1347 foreach my $test (keys %repeat_tests) {
1348 if ($i >= $test &&
1349 $i < $test + $repeat_tests{$test}) {
1350
1351 $repeated = 1;
1352 $parent = $test;
1353 last;
1354 }
1355 }
1356
1357 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1358 my $start = $1;
1359 my $var = $2;
1360 my $end = $3;
1361
1362 # Append beginning of line
1363 $retval = "$retval$start";
1364
1365 # If the iteration option OPT[$i] exists, then use that.
1366 # otherwise see if the default OPT (without [$i]) exists.
1367
1368 my $o = "$var\[$i\]";
1369 my $parento = "$var\[$parent\]";
1370
1371 # If a variable contains itself, use the default var
1372 if (($var eq $name) && defined($opt{$var})) {
1373 $o = $opt{$var};
1374 $retval = "$retval$o";
1375 } elsif (defined($opt{$o})) {
1376 $o = $opt{$o};
1377 $retval = "$retval$o";
1378 } elsif ($repeated && defined($opt{$parento})) {
1379 $o = $opt{$parento};
1380 $retval = "$retval$o";
1381 } elsif (defined($opt{$var})) {
1382 $o = $opt{$var};
1383 $retval = "$retval$o";
1384 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1385 # special option KERNEL_VERSION uses kernel version
1386 get_version();
1387 $retval = "$retval$version";
1388 } else {
1389 $retval = "$retval\$\{$var\}";
1390 }
1391
1392 $option = $end;
1393 }
1394
1395 $retval = "$retval$option";
1396
1397 $retval =~ s/^ //;
1398
1399 return $retval;
1400}
1401
1402sub process_evals {
1403 my ($name, $option, $i) = @_;
1404
1405 my $option_name = "$name\[$i\]";
1406 my $ev;
1407
1408 my $old_option = $option;
1409
1410 if (defined($evals{$option_name})) {
1411 $ev = $evals{$option_name};
1412 } elsif (defined($evals{$name})) {
1413 $ev = $evals{$name};
1414 } else {
1415 return $option;
1416 }
1417
1418 for my $e (@{$ev}) {
1419 eval "\$option =~ $e";
1420 }
1421
1422 if ($option ne $old_option) {
1423 doprint("$name changed from '$old_option' to '$option'\n");
1424 }
1425
1426 return $option;
1427}
1428
1429sub eval_option {
1430 my ($name, $option, $i) = @_;
1431
1432 my $prev = "";
1433
1434 # Since an option can evaluate to another option,
1435 # keep iterating until we do not evaluate any more
1436 # options.
1437 my $r = 0;
1438 while ($prev ne $option) {
1439 # Check for recursive evaluations.
1440 # 100 deep should be more than enough.
1441 if ($r++ > 100) {
1442 die "Over 100 evaluations occurred with $option\n" .
1443 "Check for recursive variables\n";
1444 }
1445 $prev = $option;
1446 $option = __eval_option($name, $option, $i);
1447 }
1448
1449 $option = process_evals($name, $option, $i);
1450
1451 return $option;
1452}
1453
1454sub reboot {
1455 my ($time) = @_;
1456 my $powercycle = 0;
1457
1458 # test if the machine can be connected to within a few seconds
1459 my $stat = run_ssh("echo check machine status", $connect_timeout);
1460 if (!$stat) {
1461 doprint("power cycle\n");
1462 $powercycle = 1;
1463 }
1464
1465 if ($powercycle) {
1466 run_command "$power_cycle";
1467
1468 start_monitor;
1469 # flush out current monitor
1470 # May contain the reboot success line
1471 wait_for_monitor 1;
1472
1473 } else {
1474 # Make sure everything has been written to disk
1475 run_ssh("sync", 10);
1476
1477 if (defined($time)) {
1478 start_monitor;
1479 # flush out current monitor
1480 # May contain the reboot success line
1481 wait_for_monitor 1;
1482 }
1483
1484 # try to reboot normally
1485 if (run_command $reboot) {
1486 if (defined($powercycle_after_reboot)) {
1487 sleep $powercycle_after_reboot;
1488 run_command "$power_cycle";
1489 }
1490 } else {
1491 # nope? power cycle it.
1492 run_command "$power_cycle";
1493 }
1494 }
1495
1496 if (defined($time)) {
1497
1498 # We only want to get to the new kernel, don't fail
1499 # if we stumble over a call trace.
1500 my $save_ignore_errors = $ignore_errors;
1501 $ignore_errors = 1;
1502
1503 # Look for the good kernel to boot
1504 if (wait_for_monitor($time, "Linux version")) {
1505 # reboot got stuck?
1506 doprint "Reboot did not finish. Forcing power cycle\n";
1507 run_command "$power_cycle";
1508 }
1509
1510 $ignore_errors = $save_ignore_errors;
1511
1512 # Still need to wait for the reboot to finish
1513 wait_for_monitor($time, $reboot_success_line);
1514 }
1515 if ($powercycle || $time) {
1516 end_monitor;
1517 }
1518}
1519
1520sub reboot_to_good {
1521 my ($time) = @_;
1522
1523 if (defined($switch_to_good)) {
1524 run_command $switch_to_good;
1525 }
1526
1527 reboot $time;
1528}
1529
1530sub do_not_reboot {
1531 my $i = $iteration;
1532
1533 return $test_type eq "build" || $no_reboot ||
1534 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1535 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1536 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1537}
1538
1539sub get_test_name() {
1540 my $name;
1541
1542 if (defined($test_name)) {
1543 $name = "$test_name:$test_type";
1544 } else {
1545 $name = $test_type;
1546 }
1547 return $name;
1548}
1549
1550sub dodie {
1551 # avoid recursion
1552 return if ($in_die);
1553 $in_die = 1;
1554
1555 if ($monitor_cnt) {
1556 # restore terminal settings
1557 system("stty $stty_orig");
1558 }
1559
1560 my $i = $iteration;
1561
1562 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1563
1564 if ($reboot_on_error && !do_not_reboot) {
1565 doprint "REBOOTING\n";
1566 reboot_to_good;
1567 } elsif ($poweroff_on_error && defined($power_off)) {
1568 doprint "POWERING OFF\n";
1569 `$power_off`;
1570 }
1571
1572 if (defined($opt{"LOG_FILE"})) {
1573 print " See $opt{LOG_FILE} for more info.\n";
1574 }
1575
1576 if ($email_on_error) {
1577 my $name = get_test_name;
1578 my $log_file;
1579
1580 if (defined($opt{"LOG_FILE"})) {
1581 my $whence = 2; # End of file
1582 my $log_size = tell LOG;
1583 my $size = $log_size - $test_log_start;
1584
1585 if (defined($mail_max_size)) {
1586 if ($size > $mail_max_size) {
1587 $size = $mail_max_size;
1588 }
1589 }
1590 my $pos = - $size;
1591 $log_file = "$tmpdir/log";
1592 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1593 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1594 seek(L, $pos, $whence);
1595 while (<L>) {
1596 print O;
1597 }
1598 close O;
1599 close L;
1600 }
1601
1602 send_email("KTEST: critical failure for test $i [$name]",
1603 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1604 }
1605
1606 if (defined($post_test)) {
1607 run_command $post_test;
1608 }
1609
1610 die @_, "\n";
1611}
1612
1613sub create_pty {
1614 my ($ptm, $pts) = @_;
1615 my $tmp;
1616 my $TIOCSPTLCK = 0x40045431;
1617 my $TIOCGPTN = 0x80045430;
1618
1619 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1620 dodie "Can't open /dev/ptmx";
1621
1622 # unlockpt()
1623 $tmp = pack("i", 0);
1624 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1625 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1626
1627 # ptsname()
1628 ioctl($ptm, $TIOCGPTN, $tmp) or
1629 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1630 $tmp = unpack("i", $tmp);
1631
1632 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1633 dodie "Can't open /dev/pts/$tmp";
1634}
1635
1636sub exec_console {
1637 my ($ptm, $pts) = @_;
1638
1639 close($ptm);
1640
1641 close(\*STDIN);
1642 close(\*STDOUT);
1643 close(\*STDERR);
1644
1645 open(\*STDIN, '<&', $pts);
1646 open(\*STDOUT, '>&', $pts);
1647 open(\*STDERR, '>&', $pts);
1648
1649 close($pts);
1650
1651 exec $console or
1652 dodie "Can't open console $console";
1653}
1654
1655sub open_console {
1656 my ($ptm) = @_;
1657 my $pts = \*PTSFD;
1658 my $pid;
1659
1660 # save terminal settings
1661 $stty_orig = `stty -g`;
1662
1663 # place terminal in cbreak mode so that stdin can be read one character at
1664 # a time without having to wait for a newline
1665 system("stty -icanon -echo -icrnl");
1666
1667 create_pty($ptm, $pts);
1668
1669 $pid = fork;
1670
1671 if (!$pid) {
1672 # child
1673 exec_console($ptm, $pts)
1674 }
1675
1676 # parent
1677 close($pts);
1678
1679 return $pid;
1680
1681 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1682}
1683
1684sub close_console {
1685 my ($fp, $pid) = @_;
1686
1687 doprint "kill child process $pid\n";
1688 kill $close_console_signal, $pid;
1689
1690 doprint "wait for child process $pid to exit\n";
1691 waitpid($pid, 0);
1692
1693 print "closing!\n";
1694 close($fp);
1695
1696 # restore terminal settings
1697 system("stty $stty_orig");
1698}
1699
1700sub start_monitor {
1701 if ($monitor_cnt++) {
1702 return;
1703 }
1704 $monitor_fp = \*MONFD;
1705 $monitor_pid = open_console $monitor_fp;
1706
1707 return;
1708
1709 open(MONFD, "Stop perl from warning about single use of MONFD");
1710}
1711
1712sub end_monitor {
1713 return if (!defined $console);
1714 if (--$monitor_cnt) {
1715 return;
1716 }
1717 close_console($monitor_fp, $monitor_pid);
1718}
1719
1720sub wait_for_monitor {
1721 my ($time, $stop) = @_;
1722 my $full_line = "";
1723 my $line;
1724 my $booted = 0;
1725 my $start_time = time;
1726 my $skip_call_trace = 0;
1727 my $bug = 0;
1728 my $bug_ignored = 0;
1729 my $now;
1730
1731 doprint "** Wait for monitor to settle down **\n";
1732
1733 # read the monitor and wait for the system to calm down
1734 while (!$booted) {
1735 $line = wait_for_input($monitor_fp, $time);
1736 last if (!defined($line));
1737 print "$line";
1738 $full_line .= $line;
1739
1740 if (defined($stop) && $full_line =~ /$stop/) {
1741 doprint "wait for monitor detected $stop\n";
1742 $booted = 1;
1743 }
1744
1745 if ($full_line =~ /\[ backtrace testing \]/) {
1746 $skip_call_trace = 1;
1747 }
1748
1749 if ($full_line =~ /call trace:/i) {
1750 if (!$bug && !$skip_call_trace) {
1751 if ($ignore_errors) {
1752 $bug_ignored = 1;
1753 } else {
1754 $bug = 1;
1755 }
1756 }
1757 }
1758
1759 if ($full_line =~ /\[ end of backtrace testing \]/) {
1760 $skip_call_trace = 0;
1761 }
1762
1763 if ($full_line =~ /Kernel panic -/) {
1764 $bug = 1;
1765 }
1766
1767 if ($line =~ /\n/) {
1768 $full_line = "";
1769 }
1770 $now = time;
1771 if ($now - $start_time >= $max_monitor_wait) {
1772 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1773 return 1;
1774 }
1775 }
1776 print "** Monitor flushed **\n";
1777
1778 # if stop is defined but wasn't hit, return error
1779 # used by reboot (which wants to see a reboot)
1780 if (defined($stop) && !$booted) {
1781 $bug = 1;
1782 }
1783 return $bug;
1784}
1785
1786sub save_logs {
1787 my ($result, $basedir) = @_;
1788 my @t = localtime;
1789 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1790 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1791
1792 my $type = $build_type;
1793 if ($type =~ /useconfig/) {
1794 $type = "useconfig";
1795 }
1796
1797 my $dir = "$machine-$test_type-$type-$result-$date";
1798
1799 $dir = "$basedir/$dir";
1800
1801 if (!-d $dir) {
1802 mkpath($dir) or
1803 dodie "can't create $dir";
1804 }
1805
1806 my %files = (
1807 "config" => $output_config,
1808 "buildlog" => $buildlog,
1809 "dmesg" => $dmesg,
1810 "testlog" => $testlog,
1811 );
1812
1813 while (my ($name, $source) = each(%files)) {
1814 if (-f "$source") {
1815 cp "$source", "$dir/$name" or
1816 dodie "failed to copy $source";
1817 }
1818 }
1819
1820 doprint "*** Saved info to $dir ***\n";
1821}
1822
1823sub fail {
1824
1825 if ($die_on_failure) {
1826 dodie @_;
1827 }
1828
1829 doprint "FAILED\n";
1830
1831 my $i = $iteration;
1832
1833 # no need to reboot for just building.
1834 if (!do_not_reboot) {
1835 doprint "REBOOTING\n";
1836 reboot_to_good $sleep_time;
1837 }
1838
1839 my $name = "";
1840
1841 if (defined($test_name)) {
1842 $name = " ($test_name)";
1843 }
1844
1845 print_times;
1846
1847 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1848 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1849 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1850 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1851 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1852
1853 if (defined($store_failures)) {
1854 save_logs "fail", $store_failures;
1855 }
1856
1857 if (defined($post_test)) {
1858 run_command $post_test;
1859 }
1860
1861 return 1;
1862}
1863
1864sub run_command {
1865 my ($command, $redirect, $timeout) = @_;
1866 my $start_time;
1867 my $end_time;
1868 my $dolog = 0;
1869 my $dord = 0;
1870 my $dostdout = 0;
1871 my $pid;
1872 my $command_orig = $command;
1873
1874 $command =~ s/\$SSH_USER/$ssh_user/g;
1875 $command =~ s/\$MACHINE/$machine/g;
1876
1877 if (!defined($timeout)) {
1878 $timeout = $run_timeout;
1879 }
1880
1881 if (!defined($timeout)) {
1882 $timeout = -1; # tell wait_for_input to wait indefinitely
1883 }
1884
1885 doprint("$command ... ");
1886 $start_time = time;
1887
1888 $pid = open(CMD, "$command 2>&1 |") or
1889 (fail "unable to exec $command" and return 0);
1890
1891 if (defined($opt{"LOG_FILE"})) {
1892 $dolog = 1;
1893 }
1894
1895 if (defined($redirect)) {
1896 if ($redirect eq 1) {
1897 $dostdout = 1;
1898 # Have the output of the command on its own line
1899 doprint "\n";
1900 } else {
1901 open (RD, ">$redirect") or
1902 dodie "failed to write to redirect $redirect";
1903 $dord = 1;
1904 }
1905 }
1906
1907 my $hit_timeout = 0;
1908
1909 while (1) {
1910 my $fp = \*CMD;
1911 my $line = wait_for_input($fp, $timeout);
1912 if (!defined($line)) {
1913 my $now = time;
1914 if ($timeout >= 0 && (($now - $start_time) >= $timeout)) {
1915 doprint "Hit timeout of $timeout, killing process\n";
1916 $hit_timeout = 1;
1917 kill 9, $pid;
1918 }
1919 last;
1920 }
1921 print LOG $line if ($dolog);
1922 print RD $line if ($dord);
1923 print $line if ($dostdout);
1924 }
1925
1926 waitpid($pid, 0);
1927 # shift 8 for real exit status
1928 $run_command_status = $? >> 8;
1929
1930 if ($command_orig eq $default{REBOOT} &&
1931 $run_command_status == $reboot_return_code) {
1932 $run_command_status = 0;
1933 }
1934
1935 close(CMD);
1936 close(RD) if ($dord);
1937
1938 $end_time = time;
1939 my $delta = $end_time - $start_time;
1940
1941 if ($delta == 1) {
1942 doprint "[1 second] ";
1943 } else {
1944 doprint "[$delta seconds] ";
1945 }
1946
1947 if ($hit_timeout) {
1948 $run_command_status = 1;
1949 }
1950
1951 if ($run_command_status) {
1952 doprint "FAILED!\n";
1953 } else {
1954 doprint "SUCCESS\n";
1955 }
1956
1957 return !$run_command_status;
1958}
1959
1960sub run_ssh {
1961 my ($cmd, $timeout) = @_;
1962 my $cp_exec = $ssh_exec;
1963
1964 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1965 return run_command "$cp_exec", undef , $timeout;
1966}
1967
1968sub run_scp {
1969 my ($src, $dst, $cp_scp) = @_;
1970
1971 $cp_scp =~ s/\$SRC_FILE/$src/g;
1972 $cp_scp =~ s/\$DST_FILE/$dst/g;
1973
1974 return run_command "$cp_scp";
1975}
1976
1977sub run_scp_install {
1978 my ($src, $dst) = @_;
1979
1980 my $cp_scp = $scp_to_target_install;
1981
1982 return run_scp($src, $dst, $cp_scp);
1983}
1984
1985sub run_scp_mod {
1986 my ($src, $dst) = @_;
1987
1988 my $cp_scp = $scp_to_target;
1989
1990 return run_scp($src, $dst, $cp_scp);
1991}
1992
1993sub _get_grub_index {
1994
1995 my ($command, $target, $skip, $submenu) = @_;
1996
1997 return if (defined($grub_number) && defined($last_grub_menu) &&
1998 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1999 $last_machine eq $machine);
2000
2001 doprint "Find $reboot_type menu ... ";
2002 $grub_number = -1;
2003
2004 my $ssh_grub = $ssh_exec;
2005 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
2006
2007 open(IN, "$ssh_grub |") or
2008 dodie "unable to execute $command";
2009
2010 my $found = 0;
2011
2012 my $submenu_number = 0;
2013
2014 while (<IN>) {
2015 if (/$target/) {
2016 $grub_number++;
2017 $found = 1;
2018 last;
2019 } elsif (defined($submenu) && /$submenu/) {
2020 $submenu_number++;
2021 $grub_number = -1;
2022 } elsif (/$skip/) {
2023 $grub_number++;
2024 }
2025 }
2026 close(IN);
2027
2028 dodie "Could not find '$grub_menu' through $command on $machine"
2029 if (!$found);
2030 if ($submenu_number > 0) {
2031 $grub_number = "$submenu_number>$grub_number";
2032 }
2033 doprint "$grub_number\n";
2034 $last_grub_menu = $grub_menu;
2035 $last_machine = $machine;
2036}
2037
2038sub get_grub_index {
2039
2040 my $command;
2041 my $target;
2042 my $skip;
2043 my $submenu;
2044 my $grub_menu_qt;
2045
2046 if ($reboot_type !~ /^grub/) {
2047 return;
2048 }
2049
2050 $grub_menu_qt = quotemeta($grub_menu);
2051
2052 if ($reboot_type eq "grub") {
2053 $command = "cat /boot/grub/menu.lst";
2054 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2055 $skip = '^\s*title\s';
2056 } elsif ($reboot_type eq "grub2") {
2057 $command = "cat $grub_file";
2058 $target = '^\s*menuentry.*' . $grub_menu_qt;
2059 $skip = '^\s*menuentry\s';
2060 $submenu = '^\s*submenu\s';
2061 } elsif ($reboot_type eq "grub2bls") {
2062 $command = $grub_bls_get;
2063 $target = '^title=.*' . $grub_menu_qt;
2064 $skip = '^title=';
2065 } else {
2066 return;
2067 }
2068
2069 _get_grub_index($command, $target, $skip, $submenu);
2070}
2071
2072sub wait_for_input {
2073 my ($fp, $time) = @_;
2074 my $start_time;
2075 my $rin;
2076 my $rout;
2077 my $nr;
2078 my $buf;
2079 my $line;
2080 my $ch;
2081
2082 if (!defined($time)) {
2083 $time = $timeout;
2084 }
2085
2086 if ($time < 0) {
2087 # Negative number means wait indefinitely
2088 undef $time;
2089 }
2090
2091 $rin = '';
2092 vec($rin, fileno($fp), 1) = 1;
2093 vec($rin, fileno(\*STDIN), 1) = 1;
2094
2095 $start_time = time;
2096
2097 while (1) {
2098 $nr = select($rout=$rin, undef, undef, $time);
2099
2100 last if ($nr <= 0);
2101
2102 # copy data from stdin to the console
2103 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2104 $nr = sysread(\*STDIN, $buf, 1000);
2105 syswrite($fp, $buf, $nr) if ($nr > 0);
2106 }
2107
2108 # The timeout is based on time waiting for the fp data
2109 if (vec($rout, fileno($fp), 1) != 1) {
2110 last if (defined($time) && (time - $start_time > $time));
2111 next;
2112 }
2113
2114 $line = "";
2115
2116 # try to read one char at a time
2117 while (sysread $fp, $ch, 1) {
2118 $line .= $ch;
2119 last if ($ch eq "\n");
2120 }
2121
2122 last if (!length($line));
2123
2124 return $line;
2125 }
2126 return undef;
2127}
2128
2129sub reboot_to {
2130 if (defined($switch_to_test)) {
2131 run_command $switch_to_test;
2132 }
2133
2134 if ($reboot_type eq "grub") {
2135 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2136 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2137 run_ssh "$grub_reboot \"'$grub_number'\"";
2138 } elsif ($reboot_type eq "syslinux") {
2139 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2140 } elsif (defined $reboot_script) {
2141 run_command "$reboot_script";
2142 }
2143 reboot;
2144}
2145
2146sub get_sha1 {
2147 my ($commit) = @_;
2148
2149 doprint "git rev-list --max-count=1 $commit ... ";
2150 my $sha1 = `git rev-list --max-count=1 $commit`;
2151 my $ret = $?;
2152
2153 logit $sha1;
2154
2155 if ($ret) {
2156 doprint "FAILED\n";
2157 dodie "Failed to get git $commit";
2158 }
2159
2160 print "SUCCESS\n";
2161
2162 chomp $sha1;
2163
2164 return $sha1;
2165}
2166
2167sub monitor {
2168 my $booted = 0;
2169 my $bug = 0;
2170 my $bug_ignored = 0;
2171 my $skip_call_trace = 0;
2172 my $loops;
2173
2174 my $start_time = time;
2175
2176 wait_for_monitor 5;
2177
2178 my $line;
2179 my $full_line = "";
2180
2181 open(DMESG, "> $dmesg") or
2182 dodie "unable to write to $dmesg";
2183
2184 reboot_to;
2185
2186 my $success_start;
2187 my $failure_start;
2188 my $monitor_start = time;
2189 my $done = 0;
2190 my $version_found = 0;
2191
2192 while (!$done) {
2193 if ($bug && defined($stop_after_failure) &&
2194 $stop_after_failure >= 0) {
2195 my $time = $stop_after_failure - (time - $failure_start);
2196 $line = wait_for_input($monitor_fp, $time);
2197 if (!defined($line)) {
2198 doprint "bug timed out after $booted_timeout seconds\n";
2199 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2200 last;
2201 }
2202 } elsif ($booted) {
2203 $line = wait_for_input($monitor_fp, $booted_timeout);
2204 if (!defined($line)) {
2205 my $s = $booted_timeout == 1 ? "" : "s";
2206 doprint "Successful boot found: break after $booted_timeout second$s\n";
2207 last;
2208 }
2209 } else {
2210 $line = wait_for_input($monitor_fp);
2211 if (!defined($line)) {
2212 my $s = $timeout == 1 ? "" : "s";
2213 doprint "Timed out after $timeout second$s\n";
2214 last;
2215 }
2216 }
2217
2218 doprint $line;
2219 print DMESG $line;
2220
2221 # we are not guaranteed to get a full line
2222 $full_line .= $line;
2223
2224 if ($full_line =~ /$success_line/) {
2225 $booted = 1;
2226 $success_start = time;
2227 }
2228
2229 if ($booted && defined($stop_after_success) &&
2230 $stop_after_success >= 0) {
2231 my $now = time;
2232 if ($now - $success_start >= $stop_after_success) {
2233 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2234 last;
2235 }
2236 }
2237
2238 if ($full_line =~ /\[ backtrace testing \]/) {
2239 $skip_call_trace = 1;
2240 }
2241
2242 if ($full_line =~ /call trace:/i) {
2243 if (!$bug && !$skip_call_trace) {
2244 if ($ignore_errors) {
2245 $bug_ignored = 1;
2246 } else {
2247 $bug = 1;
2248 $failure_start = time;
2249 }
2250 }
2251 }
2252
2253 if ($bug && defined($stop_after_failure) &&
2254 $stop_after_failure >= 0) {
2255 my $now = time;
2256 if ($now - $failure_start >= $stop_after_failure) {
2257 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2258 last;
2259 }
2260 }
2261
2262 if ($full_line =~ /\[ end of backtrace testing \]/) {
2263 $skip_call_trace = 0;
2264 }
2265
2266 if ($full_line =~ /Kernel panic -/) {
2267 $failure_start = time;
2268 $bug = 1;
2269 }
2270
2271 # Detect triple faults by testing the banner
2272 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2273 if ($1 eq $version) {
2274 $version_found = 1;
2275 } elsif ($version_found && $detect_triplefault) {
2276 # We already booted into the kernel we are testing,
2277 # but now we booted into another kernel?
2278 # Consider this a triple fault.
2279 doprint "Already booted in Linux kernel $version, but now\n";
2280 doprint "we booted into Linux kernel $1.\n";
2281 doprint "Assuming that this is a triple fault.\n";
2282 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2283 last;
2284 }
2285 }
2286
2287 if ($line =~ /\n/) {
2288 $full_line = "";
2289 }
2290
2291 if ($stop_test_after > 0 && !$booted && !$bug) {
2292 if (time - $monitor_start > $stop_test_after) {
2293 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2294 $done = 1;
2295 }
2296 }
2297 }
2298
2299 my $end_time = time;
2300 $reboot_time = $end_time - $start_time;
2301
2302 close(DMESG);
2303
2304 if ($bug) {
2305 return 0 if ($in_bisect);
2306 fail "failed - got a bug report" and return 0;
2307 }
2308
2309 if (!$booted) {
2310 return 0 if ($in_bisect);
2311 fail "failed - never got a boot prompt." and return 0;
2312 }
2313
2314 if ($bug_ignored) {
2315 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2316 }
2317
2318 return 1;
2319}
2320
2321sub eval_kernel_version {
2322 my ($option) = @_;
2323
2324 $option =~ s/\$KERNEL_VERSION/$version/g;
2325
2326 return $option;
2327}
2328
2329sub do_post_install {
2330
2331 return if (!defined($post_install));
2332
2333 my $cp_post_install = eval_kernel_version $post_install;
2334 run_command "$cp_post_install" or
2335 dodie "Failed to run post install";
2336}
2337
2338# Sometimes the reboot fails, and will hang. We try to ssh to the box
2339# and if we fail, we force another reboot, that should powercycle it.
2340sub test_booted {
2341 if (!run_ssh "echo testing connection") {
2342 reboot $sleep_time;
2343 }
2344}
2345
2346sub install {
2347
2348 return if ($no_install);
2349
2350 my $start_time = time;
2351
2352 if (defined($pre_install)) {
2353 my $cp_pre_install = eval_kernel_version $pre_install;
2354 run_command "$cp_pre_install" or
2355 dodie "Failed to run pre install";
2356 }
2357
2358 my $cp_target = eval_kernel_version $target_image;
2359
2360 test_booted;
2361
2362 run_scp_install "$outputdir/$build_target", "$cp_target" or
2363 dodie "failed to copy image";
2364
2365 my $install_mods = 0;
2366
2367 # should we process modules?
2368 $install_mods = 0;
2369 open(IN, "$output_config") or dodie("Can't read config file");
2370 while (<IN>) {
2371 if (/CONFIG_MODULES(=y)?/) {
2372 if (defined($1)) {
2373 $install_mods = 1;
2374 last;
2375 }
2376 }
2377 }
2378 close(IN);
2379
2380 if (!$install_mods) {
2381 do_post_install;
2382 doprint "No modules needed\n";
2383 my $end_time = time;
2384 $install_time = $end_time - $start_time;
2385 return;
2386 }
2387
2388 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2389 dodie "Failed to install modules";
2390
2391 my $modlib = "/lib/modules/$version";
2392 my $modtar = "ktest-mods.tar.bz2";
2393
2394 run_ssh "rm -rf $modlib" or
2395 dodie "failed to remove old mods: $modlib";
2396
2397 # would be nice if scp -r did not follow symbolic links
2398 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2399 dodie "making tarball";
2400
2401 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2402 dodie "failed to copy modules";
2403
2404 unlink "$tmpdir/$modtar";
2405
2406 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2407 dodie "failed to tar modules";
2408
2409 run_ssh "rm -f /tmp/$modtar";
2410
2411 do_post_install;
2412
2413 my $end_time = time;
2414 $install_time = $end_time - $start_time;
2415}
2416
2417sub get_version {
2418 # get the release name
2419 return if ($have_version);
2420 doprint "$make kernelrelease ... ";
2421 $version = `$make -s kernelrelease | tail -1`;
2422 if (!length($version)) {
2423 run_command "$make allnoconfig" or return 0;
2424 doprint "$make kernelrelease ... ";
2425 $version = `$make -s kernelrelease | tail -1`;
2426 }
2427 chomp($version);
2428 doprint "$version\n";
2429 $have_version = 1;
2430}
2431
2432sub start_monitor_and_install {
2433 # Make sure the stable kernel has finished booting
2434
2435 # Install bisects, don't need console
2436 if (defined $console) {
2437 start_monitor;
2438 wait_for_monitor 5;
2439 end_monitor;
2440 }
2441
2442 get_grub_index;
2443 get_version;
2444 install;
2445
2446 start_monitor if (defined $console);
2447 return monitor;
2448}
2449
2450sub process_warning_line {
2451 my ($line) = @_;
2452
2453 chomp $line;
2454
2455 # for distcc heterogeneous systems, some compilers
2456 # do things differently causing warning lines
2457 # to be slightly different. This makes an attempt
2458 # to fixe those issues.
2459
2460 # chop off the index into the line
2461 # using distcc, some compilers give different indexes
2462 # depending on white space
2463 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2464
2465 # Some compilers use UTF-8 extended for quotes and some don't.
2466 $line =~ s/$utf8_quote/'/g;
2467
2468 return $line;
2469}
2470
2471# Read buildlog and check against warnings file for any
2472# new warnings.
2473#
2474# Returns 1 if OK
2475# 0 otherwise
2476sub check_buildlog {
2477 my %warnings_list;
2478
2479 # Failed builds should not reboot the target
2480 my $save_no_reboot = $no_reboot;
2481 $no_reboot = 1;
2482
2483 if (-f $warnings_file) {
2484 open(IN, $warnings_file) or
2485 dodie "Error opening $warnings_file";
2486
2487 while (<IN>) {
2488 if (/$check_build_re/) {
2489 my $warning = process_warning_line $_;
2490
2491 $warnings_list{$warning} = 1;
2492 }
2493 }
2494 close(IN);
2495 }
2496
2497 open(IN, $buildlog) or dodie "Can't open $buildlog";
2498 while (<IN>) {
2499 if (/$check_build_re/) {
2500 my $warning = process_warning_line $_;
2501
2502 if (!defined $warnings_list{$warning}) {
2503 $warning_found++;
2504
2505 # If warnings file didn't exist, and WARNINGS_FILE exist,
2506 # then we fail on any warning!
2507 if (defined $warnings_file) {
2508 fail "New warning found (not in $warnings_file)\n$_\n";
2509 $no_reboot = $save_no_reboot;
2510 return 0;
2511 }
2512 }
2513 }
2514 }
2515 $no_reboot = $save_no_reboot;
2516 close(IN);
2517}
2518
2519sub check_patch_buildlog {
2520 my ($patch) = @_;
2521
2522 my @files = `git show $patch | diffstat -l`;
2523
2524 foreach my $file (@files) {
2525 chomp $file;
2526 }
2527
2528 open(IN, "git show $patch |") or
2529 dodie "failed to show $patch";
2530 while (<IN>) {
2531 if (m,^--- a/(.*),) {
2532 chomp $1;
2533 $files[$#files] = $1;
2534 }
2535 }
2536 close(IN);
2537
2538 open(IN, $buildlog) or dodie "Can't open $buildlog";
2539 while (<IN>) {
2540 if (/^\s*(.*?):.*(warning|error)/) {
2541 my $err = $1;
2542 foreach my $file (@files) {
2543 my $fullpath = "$builddir/$file";
2544 if ($file eq $err || $fullpath eq $err) {
2545 fail "$file built with warnings" and return 0;
2546 }
2547 }
2548 }
2549 }
2550 close(IN);
2551
2552 return 1;
2553}
2554
2555sub apply_min_config {
2556 my $outconfig = "$output_config.new";
2557
2558 # Read the config file and remove anything that
2559 # is in the force_config hash (from minconfig and others)
2560 # then add the force config back.
2561
2562 doprint "Applying minimum configurations into $output_config.new\n";
2563
2564 open (OUT, ">$outconfig") or
2565 dodie "Can't create $outconfig";
2566
2567 if (-f $output_config) {
2568 open (IN, $output_config) or
2569 dodie "Failed to open $output_config";
2570 while (<IN>) {
2571 if (/^(# )?(CONFIG_[^\s=]*)/) {
2572 next if (defined($force_config{$2}));
2573 }
2574 print OUT;
2575 }
2576 close IN;
2577 }
2578 foreach my $config (keys %force_config) {
2579 print OUT "$force_config{$config}\n";
2580 }
2581 close OUT;
2582
2583 run_command "mv $outconfig $output_config";
2584}
2585
2586sub make_oldconfig {
2587
2588 my @force_list = keys %force_config;
2589
2590 if ($#force_list >= 0) {
2591 apply_min_config;
2592 }
2593
2594 if (!run_command "$make olddefconfig") {
2595 # Perhaps olddefconfig doesn't exist in this version of the kernel
2596 # try oldnoconfig
2597 doprint "olddefconfig failed, trying make oldnoconfig\n";
2598 if (!run_command "$make oldnoconfig") {
2599 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2600 # try a yes '' | oldconfig
2601 run_command "yes '' | $make oldconfig" or
2602 dodie "failed make config oldconfig";
2603 }
2604 }
2605}
2606
2607# read a config file and use this to force new configs.
2608sub load_force_config {
2609 my ($config) = @_;
2610
2611 doprint "Loading force configs from $config\n";
2612 open(IN, $config) or
2613 dodie "failed to read $config";
2614 while (<IN>) {
2615 chomp;
2616 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2617 $force_config{$1} = $_;
2618 } elsif (/^# (CONFIG_\S*) is not set/) {
2619 $force_config{$1} = $_;
2620 }
2621 }
2622 close IN;
2623}
2624
2625sub build {
2626 my ($type) = @_;
2627
2628 unlink $buildlog;
2629
2630 my $start_time = time;
2631
2632 # Failed builds should not reboot the target
2633 my $save_no_reboot = $no_reboot;
2634 $no_reboot = 1;
2635
2636 # Calculate a new version from here.
2637 $have_version = 0;
2638
2639 if (defined($pre_build)) {
2640 my $ret = run_command $pre_build;
2641 if (!$ret && defined($pre_build_die) &&
2642 $pre_build_die) {
2643 dodie "failed to pre_build\n";
2644 }
2645 }
2646
2647 if ($type =~ /^useconfig:(.*)/) {
2648 run_command "cp $1 $output_config" or
2649 dodie "could not copy $1 to .config";
2650
2651 $type = "oldconfig";
2652 }
2653
2654 # old config can ask questions
2655 if ($type eq "oldconfig") {
2656 $type = "olddefconfig";
2657
2658 # allow for empty configs
2659 run_command "touch $output_config";
2660
2661 if (!$noclean) {
2662 run_command "mv $output_config $outputdir/config_temp" or
2663 dodie "moving .config";
2664
2665 run_command "$make mrproper" or dodie "make mrproper";
2666
2667 run_command "mv $outputdir/config_temp $output_config" or
2668 dodie "moving config_temp";
2669 }
2670 } elsif (!$noclean) {
2671 unlink "$output_config";
2672 run_command "$make mrproper" or
2673 dodie "make mrproper";
2674 }
2675
2676 # add something to distinguish this build
2677 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2678 print OUT "$localversion\n";
2679 close(OUT);
2680
2681 if (defined($minconfig)) {
2682 load_force_config($minconfig);
2683 }
2684
2685 if ($type ne "olddefconfig") {
2686 run_command "$make $type" or
2687 dodie "failed make config";
2688 }
2689 # Run old config regardless, to enforce min configurations
2690 make_oldconfig;
2691
2692 if (not defined($build_options)){
2693 $build_options = "";
2694 }
2695 my $build_ret = run_command "$make $build_options", $buildlog;
2696
2697 if (defined($post_build)) {
2698 # Because a post build may change the kernel version
2699 # do it now.
2700 get_version;
2701 my $ret = run_command $post_build;
2702 if (!$ret && defined($post_build_die) &&
2703 $post_build_die) {
2704 dodie "failed to post_build\n";
2705 }
2706 }
2707
2708 if (!$build_ret) {
2709 # bisect may need this to pass
2710 if ($in_bisect) {
2711 $no_reboot = $save_no_reboot;
2712 return 0;
2713 }
2714 fail "failed build" and return 0;
2715 }
2716
2717 $no_reboot = $save_no_reboot;
2718
2719 my $end_time = time;
2720 $build_time = $end_time - $start_time;
2721
2722 return 1;
2723}
2724
2725sub halt {
2726 if (!run_ssh "halt" or defined($power_off)) {
2727 if (defined($poweroff_after_halt)) {
2728 sleep $poweroff_after_halt;
2729 run_command "$power_off";
2730 }
2731 } else {
2732 # nope? the zap it!
2733 run_command "$power_off";
2734 }
2735}
2736
2737sub success {
2738 my ($i) = @_;
2739
2740 $successes++;
2741
2742 my $name = "";
2743
2744 if (defined($test_name)) {
2745 $name = " ($test_name)";
2746 }
2747
2748 print_times;
2749
2750 doprint "\n\n";
2751 doprint "*******************************************\n";
2752 doprint "*******************************************\n";
2753 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2754 doprint "*******************************************\n";
2755 doprint "*******************************************\n";
2756
2757 if (defined($store_successes)) {
2758 save_logs "success", $store_successes;
2759 }
2760
2761 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2762 doprint "Reboot and wait $sleep_time seconds\n";
2763 reboot_to_good $sleep_time;
2764 }
2765
2766 if (defined($post_test)) {
2767 run_command $post_test;
2768 }
2769}
2770
2771sub answer_bisect {
2772 for (;;) {
2773 doprint "Pass, fail, or skip? [p/f/s]";
2774 my $ans = <STDIN>;
2775 chomp $ans;
2776 if ($ans eq "p" || $ans eq "P") {
2777 return 1;
2778 } elsif ($ans eq "f" || $ans eq "F") {
2779 return 0;
2780 } elsif ($ans eq "s" || $ans eq "S") {
2781 return -1;
2782 } else {
2783 print "Please answer 'p', 'f', or 's'\n";
2784 }
2785 }
2786}
2787
2788sub child_run_test {
2789
2790 # child should have no power
2791 $reboot_on_error = 0;
2792 $poweroff_on_error = 0;
2793 $die_on_failure = 1;
2794
2795 run_command $run_test, $testlog;
2796
2797 exit $run_command_status;
2798}
2799
2800sub child_finished {
2801 $child_done = 1;
2802}
2803
2804sub do_run_test {
2805 my $child_pid;
2806 my $child_exit;
2807 my $line;
2808 my $full_line;
2809 my $bug = 0;
2810 my $bug_ignored = 0;
2811
2812 my $start_time = time;
2813
2814 wait_for_monitor 1;
2815
2816 doprint "run test $run_test\n";
2817
2818 $child_done = 0;
2819
2820 $SIG{CHLD} = qw(child_finished);
2821
2822 $child_pid = fork;
2823
2824 child_run_test if (!$child_pid);
2825
2826 $full_line = "";
2827
2828 do {
2829 $line = wait_for_input($monitor_fp, 1);
2830 if (defined($line)) {
2831
2832 # we are not guaranteed to get a full line
2833 $full_line .= $line;
2834 doprint $line;
2835
2836 if ($full_line =~ /call trace:/i) {
2837 if ($ignore_errors) {
2838 $bug_ignored = 1;
2839 } else {
2840 $bug = 1;
2841 }
2842 }
2843
2844 if ($full_line =~ /Kernel panic -/) {
2845 $bug = 1;
2846 }
2847
2848 if ($line =~ /\n/) {
2849 $full_line = "";
2850 }
2851 }
2852 } while (!$child_done && !$bug);
2853
2854 if (!$bug && $bug_ignored) {
2855 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2856 }
2857
2858 if ($bug) {
2859 my $failure_start = time;
2860 my $now;
2861 do {
2862 $line = wait_for_input($monitor_fp, 1);
2863 if (defined($line)) {
2864 doprint $line;
2865 }
2866 $now = time;
2867 if ($now - $failure_start >= $stop_after_failure) {
2868 last;
2869 }
2870 } while (defined($line));
2871
2872 doprint "Detected kernel crash!\n";
2873 # kill the child with extreme prejudice
2874 kill 9, $child_pid;
2875 }
2876
2877 waitpid $child_pid, 0;
2878 $child_exit = $? >> 8;
2879
2880 my $end_time = time;
2881 $test_time = $end_time - $start_time;
2882
2883 if (!$bug && $in_bisect) {
2884 if (defined($bisect_ret_good)) {
2885 if ($child_exit == $bisect_ret_good) {
2886 return 1;
2887 }
2888 }
2889 if (defined($bisect_ret_skip)) {
2890 if ($child_exit == $bisect_ret_skip) {
2891 return -1;
2892 }
2893 }
2894 if (defined($bisect_ret_abort)) {
2895 if ($child_exit == $bisect_ret_abort) {
2896 fail "test abort" and return -2;
2897 }
2898 }
2899 if (defined($bisect_ret_bad)) {
2900 if ($child_exit == $bisect_ret_skip) {
2901 return 0;
2902 }
2903 }
2904 if (defined($bisect_ret_default)) {
2905 if ($bisect_ret_default eq "good") {
2906 return 1;
2907 } elsif ($bisect_ret_default eq "bad") {
2908 return 0;
2909 } elsif ($bisect_ret_default eq "skip") {
2910 return -1;
2911 } elsif ($bisect_ret_default eq "abort") {
2912 return -2;
2913 } else {
2914 fail "unknown default action: $bisect_ret_default"
2915 and return -2;
2916 }
2917 }
2918 }
2919
2920 if ($bug || $child_exit) {
2921 return 0 if $in_bisect;
2922 fail "test failed" and return 0;
2923 }
2924 return 1;
2925}
2926
2927sub run_git_bisect {
2928 my ($command) = @_;
2929
2930 doprint "$command ... ";
2931
2932 my $output = `$command 2>&1`;
2933 my $ret = $?;
2934
2935 logit $output;
2936
2937 if ($ret) {
2938 doprint "FAILED\n";
2939 dodie "Failed to git bisect";
2940 }
2941
2942 doprint "SUCCESS\n";
2943 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2944 doprint "$1 [$2]\n";
2945 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2946 $bisect_bad_commit = $1;
2947 doprint "Found bad commit... $1\n";
2948 return 0;
2949 } else {
2950 # we already logged it, just print it now.
2951 print $output;
2952 }
2953
2954 return 1;
2955}
2956
2957sub bisect_reboot {
2958 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2959 reboot_to_good $bisect_sleep_time;
2960}
2961
2962# returns 1 on success, 0 on failure, -1 on skip
2963sub run_bisect_test {
2964 my ($type, $buildtype) = @_;
2965
2966 my $failed = 0;
2967 my $result;
2968
2969 $in_bisect = 1;
2970
2971 build $buildtype or $failed = 1;
2972
2973 if ($type ne "build") {
2974 if ($failed && $bisect_skip) {
2975 $in_bisect = 0;
2976 return -1;
2977 }
2978 dodie "Failed on build" if $failed;
2979
2980 # Now boot the box
2981 start_monitor_and_install or $failed = 1;
2982
2983 if ($type ne "boot") {
2984 if ($failed && $bisect_skip) {
2985 end_monitor;
2986 bisect_reboot;
2987 $in_bisect = 0;
2988 return -1;
2989 }
2990 dodie "Failed on boot" if $failed;
2991
2992 do_run_test or $failed = 1;
2993 }
2994 end_monitor;
2995 }
2996
2997 if ($failed) {
2998 $result = 0;
2999 } else {
3000 $result = 1;
3001 }
3002
3003 # reboot the box to a kernel we can ssh to
3004 if ($type ne "build") {
3005 bisect_reboot;
3006 }
3007 $in_bisect = 0;
3008
3009 return $result;
3010}
3011
3012sub run_bisect {
3013 my ($type) = @_;
3014 my $buildtype = "oldconfig";
3015
3016 # We should have a minconfig to use?
3017 if (defined($minconfig)) {
3018 $buildtype = "useconfig:$minconfig";
3019 }
3020
3021 # If the user sets bisect_tries to less than 1, then no tries
3022 # is a success.
3023 my $ret = 1;
3024
3025 # Still let the user manually decide that though.
3026 if ($bisect_tries < 1 && $bisect_manual) {
3027 $ret = answer_bisect;
3028 }
3029
3030 for (my $i = 0; $i < $bisect_tries; $i++) {
3031 if ($bisect_tries > 1) {
3032 my $t = $i + 1;
3033 doprint("Running bisect trial $t of $bisect_tries:\n");
3034 }
3035 $ret = run_bisect_test $type, $buildtype;
3036
3037 if ($bisect_manual) {
3038 $ret = answer_bisect;
3039 }
3040
3041 last if (!$ret);
3042 }
3043
3044 # Are we looking for where it worked, not failed?
3045 if ($reverse_bisect && $ret >= 0) {
3046 $ret = !$ret;
3047 }
3048
3049 if ($ret > 0) {
3050 return "good";
3051 } elsif ($ret == 0) {
3052 return "bad";
3053 } elsif ($bisect_skip) {
3054 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3055 return "skip";
3056 }
3057}
3058
3059sub update_bisect_replay {
3060 my $tmp_log = "$tmpdir/ktest_bisect_log";
3061 run_command "git bisect log > $tmp_log" or
3062 dodie "can't create bisect log";
3063 return $tmp_log;
3064}
3065
3066sub bisect {
3067 my ($i) = @_;
3068
3069 my $result;
3070
3071 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3072 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3073 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3074
3075 my $good = $bisect_good;
3076 my $bad = $bisect_bad;
3077 my $type = $bisect_type;
3078 my $start = $bisect_start;
3079 my $replay = $bisect_replay;
3080 my $start_files = $bisect_files;
3081
3082 if (defined($start_files)) {
3083 $start_files = " -- " . $start_files;
3084 } else {
3085 $start_files = "";
3086 }
3087
3088 # convert to true sha1's
3089 $good = get_sha1($good);
3090 $bad = get_sha1($bad);
3091
3092 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3093 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3094 $reverse_bisect = 1;
3095 } else {
3096 $reverse_bisect = 0;
3097 }
3098
3099 # Can't have a test without having a test to run
3100 if ($type eq "test" && !defined($run_test)) {
3101 $type = "boot";
3102 }
3103
3104 # Check if a bisect was running
3105 my $bisect_start_file = "$builddir/.git/BISECT_START";
3106
3107 my $check = $bisect_check;
3108 my $do_check = defined($check) && $check ne "0";
3109
3110 if ( -f $bisect_start_file ) {
3111 print "Bisect in progress found\n";
3112 if ($do_check) {
3113 print " If you say yes, then no checks of good or bad will be done\n";
3114 }
3115 if (defined($replay)) {
3116 print "** BISECT_REPLAY is defined in config file **";
3117 print " Ignore config option and perform new git bisect log?\n";
3118 if (read_ync " (yes, no, or cancel) ") {
3119 $replay = update_bisect_replay;
3120 $do_check = 0;
3121 }
3122 } elsif (read_yn "read git log and continue?") {
3123 $replay = update_bisect_replay;
3124 $do_check = 0;
3125 }
3126 }
3127
3128 if ($do_check) {
3129 # get current HEAD
3130 my $head = get_sha1("HEAD");
3131
3132 if ($check ne "good") {
3133 doprint "TESTING BISECT BAD [$bad]\n";
3134 run_command "git checkout $bad" or
3135 dodie "Failed to checkout $bad";
3136
3137 $result = run_bisect $type;
3138
3139 if ($result ne "bad") {
3140 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3141 }
3142 }
3143
3144 if ($check ne "bad") {
3145 doprint "TESTING BISECT GOOD [$good]\n";
3146 run_command "git checkout $good" or
3147 dodie "Failed to checkout $good";
3148
3149 $result = run_bisect $type;
3150
3151 if ($result ne "good") {
3152 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3153 }
3154 }
3155
3156 # checkout where we started
3157 run_command "git checkout $head" or
3158 dodie "Failed to checkout $head";
3159 }
3160
3161 run_command "git bisect start$start_files" or
3162 dodie "could not start bisect";
3163
3164 if (defined($replay)) {
3165 run_command "git bisect replay $replay" or
3166 dodie "failed to run replay";
3167 } else {
3168 run_command "git bisect good $good" or
3169 dodie "could not set bisect good to $good";
3170
3171 run_git_bisect "git bisect bad $bad" or
3172 dodie "could not set bisect bad to $bad";
3173 }
3174
3175 if (defined($start)) {
3176 run_command "git checkout $start" or
3177 dodie "failed to checkout $start";
3178 }
3179
3180 my $test;
3181 do {
3182 $result = run_bisect $type;
3183 $test = run_git_bisect "git bisect $result";
3184 print_times;
3185 } while ($test);
3186
3187 run_command "git bisect log" or
3188 dodie "could not capture git bisect log";
3189
3190 run_command "git bisect reset" or
3191 dodie "could not reset git bisect";
3192
3193 doprint "Bad commit was [$bisect_bad_commit]\n";
3194
3195 success $i;
3196}
3197
3198sub assign_configs {
3199 my ($hash, $config) = @_;
3200
3201 doprint "Reading configs from $config\n";
3202
3203 open (IN, $config) or
3204 dodie "Failed to read $config";
3205
3206 while (<IN>) {
3207 chomp;
3208 if (/^((CONFIG\S*)=.*)/) {
3209 ${$hash}{$2} = $1;
3210 } elsif (/^(# (CONFIG\S*) is not set)/) {
3211 ${$hash}{$2} = $1;
3212 }
3213 }
3214
3215 close(IN);
3216}
3217
3218sub process_config_ignore {
3219 my ($config) = @_;
3220
3221 assign_configs \%config_ignore, $config;
3222}
3223
3224sub get_dependencies {
3225 my ($config) = @_;
3226
3227 my $arr = $dependency{$config};
3228 if (!defined($arr)) {
3229 return ();
3230 }
3231
3232 my @deps = @{$arr};
3233
3234 foreach my $dep (@{$arr}) {
3235 print "ADD DEP $dep\n";
3236 @deps = (@deps, get_dependencies $dep);
3237 }
3238
3239 return @deps;
3240}
3241
3242sub save_config {
3243 my ($pc, $file) = @_;
3244
3245 my %configs = %{$pc};
3246
3247 doprint "Saving configs into $file\n";
3248
3249 open(OUT, ">$file") or dodie "Can not write to $file";
3250
3251 foreach my $config (keys %configs) {
3252 print OUT "$configs{$config}\n";
3253 }
3254 close(OUT);
3255}
3256
3257sub create_config {
3258 my ($name, $pc) = @_;
3259
3260 doprint "Creating old config from $name configs\n";
3261
3262 save_config $pc, $output_config;
3263
3264 make_oldconfig;
3265}
3266
3267sub run_config_bisect_test {
3268 my ($type) = @_;
3269
3270 my $ret = run_bisect_test $type, "oldconfig";
3271
3272 if ($bisect_manual) {
3273 $ret = answer_bisect;
3274 }
3275
3276 return $ret;
3277}
3278
3279sub config_bisect_end {
3280 my ($good, $bad) = @_;
3281 my $diffexec = "diff -u";
3282
3283 if (-f "$builddir/scripts/diffconfig") {
3284 $diffexec = "$builddir/scripts/diffconfig";
3285 }
3286 doprint "\n\n***************************************\n";
3287 doprint "No more config bisecting possible.\n";
3288 run_command "$diffexec $good $bad", 1;
3289 doprint "***************************************\n\n";
3290}
3291
3292sub run_config_bisect {
3293 my ($good, $bad, $last_result) = @_;
3294 my $reset = "";
3295 my $cmd;
3296 my $ret;
3297
3298 if (!length($last_result)) {
3299 $reset = "-r";
3300 }
3301 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3302
3303 # config-bisect returns:
3304 # 0 if there is more to bisect
3305 # 1 for finding a good config
3306 # 2 if it can not find any more configs
3307 # -1 (255) on error
3308 if ($run_command_status) {
3309 return $run_command_status;
3310 }
3311
3312 $ret = run_config_bisect_test $config_bisect_type;
3313 if ($ret) {
3314 doprint "NEW GOOD CONFIG ($pass)\n";
3315 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3316 $pass++;
3317 # Return 3 for good config
3318 return 3;
3319 } else {
3320 doprint "NEW BAD CONFIG ($pass)\n";
3321 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3322 $pass++;
3323 # Return 4 for bad config
3324 return 4;
3325 }
3326}
3327
3328sub config_bisect {
3329 my ($i) = @_;
3330
3331 my $good_config;
3332 my $bad_config;
3333
3334 my $type = $config_bisect_type;
3335 my $ret;
3336
3337 $bad_config = $config_bisect;
3338
3339 if (defined($config_bisect_good)) {
3340 $good_config = $config_bisect_good;
3341 } elsif (defined($minconfig)) {
3342 $good_config = $minconfig;
3343 } else {
3344 doprint "No config specified, checking if defconfig works";
3345 $ret = run_bisect_test $type, "defconfig";
3346 if (!$ret) {
3347 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3348 return 1;
3349 }
3350 $good_config = $output_config;
3351 }
3352
3353 if (!defined($config_bisect_exec)) {
3354 # First check the location that ktest.pl ran
3355 my @locations = (
3356 "$pwd/config-bisect.pl",
3357 "$dirname/config-bisect.pl",
3358 "$builddir/tools/testing/ktest/config-bisect.pl",
3359 undef );
3360 foreach my $loc (@locations) {
3361 doprint "loc = $loc\n";
3362 $config_bisect_exec = $loc;
3363 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3364 }
3365 if (!defined($config_bisect_exec)) {
3366 fail "Could not find an executable config-bisect.pl\n",
3367 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3368 return 1;
3369 }
3370 }
3371
3372 # we don't want min configs to cause issues here.
3373 doprint "Disabling 'MIN_CONFIG' for this test\n";
3374 undef $minconfig;
3375
3376 my %good_configs;
3377 my %bad_configs;
3378 my %tmp_configs;
3379
3380 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3381 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3382 if (-f "$tmpdir/good_config.tmp") {
3383 $good_config = "$tmpdir/good_config.tmp";
3384 } else {
3385 $good_config = "$tmpdir/good_config";
3386 }
3387 if (-f "$tmpdir/bad_config.tmp") {
3388 $bad_config = "$tmpdir/bad_config.tmp";
3389 } else {
3390 $bad_config = "$tmpdir/bad_config";
3391 }
3392 }
3393 }
3394 doprint "Run good configs through make oldconfig\n";
3395 assign_configs \%tmp_configs, $good_config;
3396 create_config "$good_config", \%tmp_configs;
3397 $good_config = "$tmpdir/good_config";
3398 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3399
3400 doprint "Run bad configs through make oldconfig\n";
3401 assign_configs \%tmp_configs, $bad_config;
3402 create_config "$bad_config", \%tmp_configs;
3403 $bad_config = "$tmpdir/bad_config";
3404 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3405
3406 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3407 if ($config_bisect_check ne "good") {
3408 doprint "Testing bad config\n";
3409
3410 $ret = run_bisect_test $type, "useconfig:$bad_config";
3411 if ($ret) {
3412 fail "Bad config succeeded when expected to fail!";
3413 return 0;
3414 }
3415 }
3416 if ($config_bisect_check ne "bad") {
3417 doprint "Testing good config\n";
3418
3419 $ret = run_bisect_test $type, "useconfig:$good_config";
3420 if (!$ret) {
3421 fail "Good config failed when expected to succeed!";
3422 return 0;
3423 }
3424 }
3425 }
3426
3427 my $last_run = "";
3428
3429 do {
3430 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3431 if ($ret == 3) {
3432 $last_run = "good";
3433 } elsif ($ret == 4) {
3434 $last_run = "bad";
3435 }
3436 print_times;
3437 } while ($ret == 3 || $ret == 4);
3438
3439 if ($ret == 2) {
3440 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3441 }
3442
3443 return $ret if ($ret < 0);
3444
3445 success $i;
3446}
3447
3448sub patchcheck_reboot {
3449 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3450 reboot_to_good $patchcheck_sleep_time;
3451}
3452
3453sub patchcheck {
3454 my ($i) = @_;
3455
3456 dodie "PATCHCHECK_START[$i] not defined\n"
3457 if (!defined($patchcheck_start));
3458 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3459 if (!defined($patchcheck_type));
3460
3461 my $start = $patchcheck_start;
3462
3463 my $cherry = $patchcheck_cherry;
3464 if (!defined($cherry)) {
3465 $cherry = 0;
3466 }
3467
3468 my $end = "HEAD";
3469 if (defined($patchcheck_end)) {
3470 $end = $patchcheck_end;
3471 } elsif ($cherry) {
3472 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3473 }
3474
3475 # Get the true sha1's since we can use things like HEAD~3
3476 $start = get_sha1($start);
3477 $end = get_sha1($end);
3478
3479 my $type = $patchcheck_type;
3480
3481 # Can't have a test without having a test to run
3482 if ($type eq "test" && !defined($run_test)) {
3483 $type = "boot";
3484 }
3485
3486 if ($cherry) {
3487 open (IN, "git cherry -v $start $end|") or
3488 dodie "could not get git list";
3489 } else {
3490 open (IN, "git log --pretty=oneline $end|") or
3491 dodie "could not get git list";
3492 }
3493
3494 my @list;
3495
3496 while (<IN>) {
3497 chomp;
3498 # git cherry adds a '+' we want to remove
3499 s/^\+ //;
3500 $list[$#list+1] = $_;
3501 last if (/^$start/);
3502 }
3503 close(IN);
3504
3505 if (!$cherry) {
3506 if ($list[$#list] !~ /^$start/) {
3507 fail "SHA1 $start not found";
3508 }
3509
3510 # go backwards in the list
3511 @list = reverse @list;
3512 }
3513
3514 doprint("Going to test the following commits:\n");
3515 foreach my $l (@list) {
3516 doprint "$l\n";
3517 }
3518
3519 my $save_clean = $noclean;
3520 my %ignored_warnings;
3521
3522 if (defined($ignore_warnings)) {
3523 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3524 $ignored_warnings{$sha1} = 1;
3525 }
3526 }
3527
3528 $in_patchcheck = 1;
3529 foreach my $item (@list) {
3530 my $sha1 = $item;
3531 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3532
3533 doprint "\nProcessing commit \"$item\"\n\n";
3534
3535 run_command "git checkout $sha1" or
3536 dodie "Failed to checkout $sha1";
3537
3538 # only clean on the first and last patch
3539 if ($item eq $list[0] ||
3540 $item eq $list[$#list]) {
3541 $noclean = $save_clean;
3542 } else {
3543 $noclean = 1;
3544 }
3545
3546 if (defined($minconfig)) {
3547 build "useconfig:$minconfig" or return 0;
3548 } else {
3549 # ?? no config to use?
3550 build "oldconfig" or return 0;
3551 }
3552
3553 # No need to do per patch checking if warnings file exists
3554 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3555 check_patch_buildlog $sha1 or return 0;
3556 }
3557
3558 check_buildlog or return 0;
3559
3560 next if ($type eq "build");
3561
3562 my $failed = 0;
3563
3564 start_monitor_and_install or $failed = 1;
3565
3566 if (!$failed && $type ne "boot"){
3567 do_run_test or $failed = 1;
3568 }
3569 end_monitor;
3570 if ($failed) {
3571 print_times;
3572 return 0;
3573 }
3574 patchcheck_reboot;
3575 print_times;
3576 }
3577 $in_patchcheck = 0;
3578 success $i;
3579
3580 return 1;
3581}
3582
3583sub add_dep {
3584 # $config depends on $dep
3585 my ($config, $dep) = @_;
3586
3587 if (defined($depends{$config})) {
3588 $depends{$config} .= " " . $dep;
3589 } else {
3590 $depends{$config} = $dep;
3591 }
3592
3593 # record the number of configs depending on $dep
3594 if (defined $depcount{$dep}) {
3595 $depcount{$dep}++;
3596 } else {
3597 $depcount{$dep} = 1;
3598 }
3599}
3600
3601# taken from streamline_config.pl
3602sub read_kconfig {
3603 my ($kconfig) = @_;
3604
3605 my $state = "NONE";
3606 my $config;
3607 my @kconfigs;
3608
3609 my $cont = 0;
3610 my $line;
3611
3612 if (! -f $kconfig) {
3613 doprint "file $kconfig does not exist, skipping\n";
3614 return;
3615 }
3616
3617 open(KIN, "$kconfig")
3618 or dodie "Can't open $kconfig";
3619 while (<KIN>) {
3620 chomp;
3621
3622 # Make sure that lines ending with \ continue
3623 if ($cont) {
3624 $_ = $line . " " . $_;
3625 }
3626
3627 if (s/\\$//) {
3628 $cont = 1;
3629 $line = $_;
3630 next;
3631 }
3632
3633 $cont = 0;
3634
3635 # collect any Kconfig sources
3636 if (/^source\s*"(.*)"/) {
3637 $kconfigs[$#kconfigs+1] = $1;
3638 }
3639
3640 # configs found
3641 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3642 $state = "NEW";
3643 $config = $2;
3644
3645 for (my $i = 0; $i < $iflevel; $i++) {
3646 add_dep $config, $ifdeps[$i];
3647 }
3648
3649 # collect the depends for the config
3650 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3651
3652 add_dep $config, $1;
3653
3654 # Get the configs that select this config
3655 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3656
3657 # selected by depends on config
3658 add_dep $1, $config;
3659
3660 # Check for if statements
3661 } elsif (/^if\s+(.*\S)\s*$/) {
3662 my $deps = $1;
3663 # remove beginning and ending non text
3664 $deps =~ s/^[^a-zA-Z0-9_]*//;
3665 $deps =~ s/[^a-zA-Z0-9_]*$//;
3666
3667 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3668
3669 $ifdeps[$iflevel++] = join ':', @deps;
3670
3671 } elsif (/^endif/) {
3672
3673 $iflevel-- if ($iflevel);
3674
3675 # stop on "help"
3676 } elsif (/^\s*help\s*$/) {
3677 $state = "NONE";
3678 }
3679 }
3680 close(KIN);
3681
3682 # read in any configs that were found.
3683 foreach $kconfig (@kconfigs) {
3684 if (!defined($read_kconfigs{$kconfig})) {
3685 $read_kconfigs{$kconfig} = 1;
3686 read_kconfig("$builddir/$kconfig");
3687 }
3688 }
3689}
3690
3691sub read_depends {
3692 # find out which arch this is by the kconfig file
3693 open (IN, $output_config) or
3694 dodie "Failed to read $output_config";
3695 my $arch;
3696 while (<IN>) {
3697 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3698 $arch = $1;
3699 last;
3700 }
3701 }
3702 close IN;
3703
3704 if (!defined($arch)) {
3705 doprint "Could not find arch from config file\n";
3706 doprint "no dependencies used\n";
3707 return;
3708 }
3709
3710 # arch is really the subarch, we need to know
3711 # what directory to look at.
3712 if ($arch eq "i386" || $arch eq "x86_64") {
3713 $arch = "x86";
3714 }
3715
3716 my $kconfig = "$builddir/arch/$arch/Kconfig";
3717
3718 if (! -f $kconfig && $arch =~ /\d$/) {
3719 my $orig = $arch;
3720 # some subarchs have numbers, truncate them
3721 $arch =~ s/\d*$//;
3722 $kconfig = "$builddir/arch/$arch/Kconfig";
3723 if (! -f $kconfig) {
3724 doprint "No idea what arch dir $orig is for\n";
3725 doprint "no dependencies used\n";
3726 return;
3727 }
3728 }
3729
3730 read_kconfig($kconfig);
3731}
3732
3733sub make_new_config {
3734 my @configs = @_;
3735
3736 open (OUT, ">$output_config")
3737 or dodie "Failed to write $output_config";
3738
3739 foreach my $config (@configs) {
3740 print OUT "$config\n";
3741 }
3742 close OUT;
3743}
3744
3745sub chomp_config {
3746 my ($config) = @_;
3747
3748 $config =~ s/CONFIG_//;
3749
3750 return $config;
3751}
3752
3753sub get_depends {
3754 my ($dep) = @_;
3755
3756 my $kconfig = chomp_config $dep;
3757
3758 $dep = $depends{"$kconfig"};
3759
3760 # the dep string we have saves the dependencies as they
3761 # were found, including expressions like ! && ||. We
3762 # want to split this out into just an array of configs.
3763
3764 my $valid = "A-Za-z_0-9";
3765
3766 my @configs;
3767
3768 while ($dep =~ /[$valid]/) {
3769 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3770 my $conf = "CONFIG_" . $1;
3771
3772 $configs[$#configs + 1] = $conf;
3773
3774 $dep =~ s/^[^$valid]*[$valid]+//;
3775 } else {
3776 dodie "this should never happen";
3777 }
3778 }
3779
3780 return @configs;
3781}
3782
3783sub test_this_config {
3784 my ($config) = @_;
3785
3786 my $found;
3787
3788 # if we already processed this config, skip it
3789 if (defined($processed_configs{$config})) {
3790 return undef;
3791 }
3792 $processed_configs{$config} = 1;
3793
3794 # if this config failed during this round, skip it
3795 if (defined($nochange_config{$config})) {
3796 return undef;
3797 }
3798
3799 my $kconfig = chomp_config $config;
3800
3801 # Test dependencies first
3802 if (defined($depends{"$kconfig"})) {
3803 my @parents = get_depends $config;
3804 foreach my $parent (@parents) {
3805 # if the parent is in the min config, check it first
3806 next if (!defined($min_configs{$parent}));
3807 $found = test_this_config($parent);
3808 if (defined($found)) {
3809 return $found;
3810 }
3811 }
3812 }
3813
3814 # Remove this config from the list of configs
3815 # do a make olddefconfig and then read the resulting
3816 # .config to make sure it is missing the config that
3817 # we had before
3818 my %configs = %min_configs;
3819 $configs{$config} = "# $config is not set";
3820 make_new_config ((values %configs), (values %keep_configs));
3821 make_oldconfig;
3822 delete $configs{$config};
3823 undef %configs;
3824 assign_configs \%configs, $output_config;
3825
3826 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3827 return $config;
3828 }
3829
3830 doprint "disabling config $config did not change .config\n";
3831
3832 $nochange_config{$config} = 1;
3833
3834 return undef;
3835}
3836
3837sub make_min_config {
3838 my ($i) = @_;
3839
3840 my $type = $minconfig_type;
3841 if ($type ne "boot" && $type ne "test") {
3842 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3843 " make_min_config works only with 'boot' and 'test'\n" and return;
3844 }
3845
3846 if (!defined($output_minconfig)) {
3847 fail "OUTPUT_MIN_CONFIG not defined" and return;
3848 }
3849
3850 # If output_minconfig exists, and the start_minconfig
3851 # came from min_config, than ask if we should use
3852 # that instead.
3853 if (-f $output_minconfig && !$start_minconfig_defined) {
3854 print "$output_minconfig exists\n";
3855 if (!defined($use_output_minconfig)) {
3856 if (read_yn " Use it as minconfig?") {
3857 $start_minconfig = $output_minconfig;
3858 }
3859 } elsif ($use_output_minconfig > 0) {
3860 doprint "Using $output_minconfig as MIN_CONFIG\n";
3861 $start_minconfig = $output_minconfig;
3862 } else {
3863 doprint "Set to still use MIN_CONFIG as starting point\n";
3864 }
3865 }
3866
3867 if (!defined($start_minconfig)) {
3868 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3869 }
3870
3871 my $temp_config = "$tmpdir/temp_config";
3872
3873 # First things first. We build an allnoconfig to find
3874 # out what the defaults are that we can't touch.
3875 # Some are selections, but we really can't handle selections.
3876
3877 my $save_minconfig = $minconfig;
3878 undef $minconfig;
3879
3880 run_command "$make allnoconfig" or return 0;
3881
3882 read_depends;
3883
3884 process_config_ignore $output_config;
3885
3886 undef %save_configs;
3887 undef %min_configs;
3888
3889 if (defined($ignore_config)) {
3890 # make sure the file exists
3891 `touch $ignore_config`;
3892 assign_configs \%save_configs, $ignore_config;
3893 }
3894
3895 %keep_configs = %save_configs;
3896
3897 doprint "Load initial configs from $start_minconfig\n";
3898
3899 # Look at the current min configs, and save off all the
3900 # ones that were set via the allnoconfig
3901 assign_configs \%min_configs, $start_minconfig;
3902
3903 my @config_keys = keys %min_configs;
3904
3905 # All configs need a depcount
3906 foreach my $config (@config_keys) {
3907 my $kconfig = chomp_config $config;
3908 if (!defined $depcount{$kconfig}) {
3909 $depcount{$kconfig} = 0;
3910 }
3911 }
3912
3913 # Remove anything that was set by the make allnoconfig
3914 # we shouldn't need them as they get set for us anyway.
3915 foreach my $config (@config_keys) {
3916 # Remove anything in the ignore_config
3917 if (defined($keep_configs{$config})) {
3918 my $file = $ignore_config;
3919 $file =~ s,.*/(.*?)$,$1,;
3920 doprint "$config set by $file ... ignored\n";
3921 delete $min_configs{$config};
3922 next;
3923 }
3924 # But make sure the settings are the same. If a min config
3925 # sets a selection, we do not want to get rid of it if
3926 # it is not the same as what we have. Just move it into
3927 # the keep configs.
3928 if (defined($config_ignore{$config})) {
3929 if ($config_ignore{$config} ne $min_configs{$config}) {
3930 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3931 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3932 $keep_configs{$config} = $min_configs{$config};
3933 } else {
3934 doprint "$config set by allnoconfig ... ignored\n";
3935 }
3936 delete $min_configs{$config};
3937 }
3938 }
3939
3940 my $done = 0;
3941 my $take_two = 0;
3942
3943 while (!$done) {
3944 my $config;
3945 my $found;
3946
3947 # Now disable each config one by one and do a make oldconfig
3948 # till we find a config that changes our list.
3949
3950 my @test_configs = keys %min_configs;
3951
3952 # Sort keys by who is most dependent on
3953 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3954 @test_configs ;
3955
3956 # Put configs that did not modify the config at the end.
3957 my $reset = 1;
3958 for (my $i = 0; $i < $#test_configs; $i++) {
3959 if (!defined($nochange_config{$test_configs[0]})) {
3960 $reset = 0;
3961 last;
3962 }
3963 # This config didn't change the .config last time.
3964 # Place it at the end
3965 my $config = shift @test_configs;
3966 push @test_configs, $config;
3967 }
3968
3969 # if every test config has failed to modify the .config file
3970 # in the past, then reset and start over.
3971 if ($reset) {
3972 undef %nochange_config;
3973 }
3974
3975 undef %processed_configs;
3976
3977 foreach my $config (@test_configs) {
3978
3979 $found = test_this_config $config;
3980
3981 last if (defined($found));
3982
3983 # oh well, try another config
3984 }
3985
3986 if (!defined($found)) {
3987 # we could have failed due to the nochange_config hash
3988 # reset and try again
3989 if (!$take_two) {
3990 undef %nochange_config;
3991 $take_two = 1;
3992 next;
3993 }
3994 doprint "No more configs found that we can disable\n";
3995 $done = 1;
3996 last;
3997 }
3998 $take_two = 0;
3999
4000 $config = $found;
4001
4002 doprint "Test with $config disabled\n";
4003
4004 # set in_bisect to keep build and monitor from dieing
4005 $in_bisect = 1;
4006
4007 my $failed = 0;
4008 build "oldconfig" or $failed = 1;
4009 if (!$failed) {
4010 start_monitor_and_install or $failed = 1;
4011
4012 if ($type eq "test" && !$failed) {
4013 do_run_test or $failed = 1;
4014 }
4015
4016 end_monitor;
4017 }
4018
4019 $in_bisect = 0;
4020
4021 if ($failed) {
4022 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
4023 # this config is needed, add it to the ignore list.
4024 $keep_configs{$config} = $min_configs{$config};
4025 $save_configs{$config} = $min_configs{$config};
4026 delete $min_configs{$config};
4027
4028 # update new ignore configs
4029 if (defined($ignore_config)) {
4030 open (OUT, ">$temp_config") or
4031 dodie "Can't write to $temp_config";
4032 foreach my $config (keys %save_configs) {
4033 print OUT "$save_configs{$config}\n";
4034 }
4035 close OUT;
4036 run_command "mv $temp_config $ignore_config" or
4037 dodie "failed to copy update to $ignore_config";
4038 }
4039
4040 } else {
4041 # We booted without this config, remove it from the minconfigs.
4042 doprint "$config is not needed, disabling\n";
4043
4044 delete $min_configs{$config};
4045
4046 # Also disable anything that is not enabled in this config
4047 my %configs;
4048 assign_configs \%configs, $output_config;
4049 my @config_keys = keys %min_configs;
4050 foreach my $config (@config_keys) {
4051 if (!defined($configs{$config})) {
4052 doprint "$config is not set, disabling\n";
4053 delete $min_configs{$config};
4054 }
4055 }
4056
4057 # Save off all the current mandatory configs
4058 open (OUT, ">$temp_config") or
4059 dodie "Can't write to $temp_config";
4060 foreach my $config (keys %keep_configs) {
4061 print OUT "$keep_configs{$config}\n";
4062 }
4063 foreach my $config (keys %min_configs) {
4064 print OUT "$min_configs{$config}\n";
4065 }
4066 close OUT;
4067
4068 run_command "mv $temp_config $output_minconfig" or
4069 dodie "failed to copy update to $output_minconfig";
4070 }
4071
4072 doprint "Reboot and wait $sleep_time seconds\n";
4073 reboot_to_good $sleep_time;
4074 }
4075
4076 success $i;
4077 return 1;
4078}
4079
4080sub make_warnings_file {
4081 my ($i) = @_;
4082
4083 if (!defined($warnings_file)) {
4084 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4085 }
4086
4087 if ($build_type eq "nobuild") {
4088 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4089 }
4090
4091 build $build_type or dodie "Failed to build";
4092
4093 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4094
4095 open(IN, $buildlog) or dodie "Can't open $buildlog";
4096 while (<IN>) {
4097 # Some compilers use UTF-8 extended for quotes
4098 # for distcc heterogeneous systems, this causes issues
4099 s/$utf8_quote/'/g;
4100
4101 if (/$check_build_re/) {
4102 print OUT;
4103 }
4104 }
4105 close(IN);
4106
4107 close(OUT);
4108
4109 success $i;
4110}
4111
4112sub option_defined {
4113 my ($option) = @_;
4114
4115 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4116 return 1;
4117 }
4118
4119 return 0;
4120}
4121
4122sub __set_test_option {
4123 my ($name, $i) = @_;
4124
4125 my $option = "$name\[$i\]";
4126
4127 if (option_defined($option)) {
4128 return $opt{$option};
4129 }
4130
4131 foreach my $test (keys %repeat_tests) {
4132 if ($i >= $test &&
4133 $i < $test + $repeat_tests{$test}) {
4134 $option = "$name\[$test\]";
4135 if (option_defined($option)) {
4136 return $opt{$option};
4137 }
4138 }
4139 }
4140
4141 if (option_defined($name)) {
4142 return $opt{$name};
4143 }
4144
4145 return undef;
4146}
4147
4148sub set_test_option {
4149 my ($name, $i) = @_;
4150
4151 my $option = __set_test_option($name, $i);
4152 return $option if (!defined($option));
4153
4154 return eval_option($name, $option, $i);
4155}
4156
4157sub find_mailer {
4158 my ($mailer) = @_;
4159
4160 my @paths = split /:/, $ENV{PATH};
4161
4162 # sendmail is usually in /usr/sbin
4163 $paths[$#paths + 1] = "/usr/sbin";
4164
4165 foreach my $path (@paths) {
4166 if (-x "$path/$mailer") {
4167 return $path;
4168 }
4169 }
4170
4171 return undef;
4172}
4173
4174sub do_send_mail {
4175 my ($subject, $message, $file) = @_;
4176
4177 if (!defined($mail_path)) {
4178 # find the mailer
4179 $mail_path = find_mailer $mailer;
4180 if (!defined($mail_path)) {
4181 die "\nCan not find $mailer in PATH\n";
4182 }
4183 }
4184
4185 my $header_file = "$tmpdir/header";
4186 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4187 print HEAD "To: $mailto\n";
4188 print HEAD "Subject: $subject\n\n";
4189 print HEAD "$message\n";
4190 close HEAD;
4191
4192 if (!defined($mail_command)) {
4193 if ($mailer eq "mail" || $mailer eq "mailx") {
4194 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4195 } elsif ($mailer eq "sendmail" ) {
4196 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4197 } else {
4198 die "\nYour mailer: $mailer is not supported.\n";
4199 }
4200 }
4201
4202 if (defined($file)) {
4203 $mail_command =~ s/\$BODY_FILE/$file/g;
4204 } else {
4205 $mail_command =~ s/\$BODY_FILE//g;
4206 }
4207
4208 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4209 $mail_command =~ s/\$MAILER/$mailer/g;
4210 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4211 $mail_command =~ s/\$MAILTO/$mailto/g;
4212 $mail_command =~ s/\$SUBJECT/$subject/g;
4213 $mail_command =~ s/\$MESSAGE/$message/g;
4214
4215 my $ret = run_command $mail_command;
4216 if (!$ret && defined($file)) {
4217 # try again without the file
4218 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4219 do_send_email($subject, $message);
4220 }
4221}
4222
4223sub send_email {
4224 if (defined($mailto)) {
4225 if (!defined($mailer)) {
4226 doprint "No email sent: email or mailer not specified in config.\n";
4227 return;
4228 }
4229 do_send_mail @_;
4230 }
4231}
4232
4233sub cancel_test {
4234 if ($monitor_cnt) {
4235 end_monitor;
4236 }
4237 if ($email_when_canceled) {
4238 my $name = get_test_name;
4239 send_email("KTEST: Your [$name] test was cancelled",
4240 "Your test started at $script_start_time was cancelled: sig int");
4241 }
4242 die "\nCaught Sig Int, test interrupted: $!\n"
4243}
4244
4245$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4246
4247if ($#ARGV == 0) {
4248 $ktest_config = $ARGV[0];
4249 if (! -f $ktest_config) {
4250 print "$ktest_config does not exist.\n";
4251 if (!read_yn "Create it?") {
4252 exit 0;
4253 }
4254 }
4255}
4256
4257if (! -f $ktest_config) {
4258 $newconfig = 1;
4259 get_test_case;
4260 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4261 print OUT << "EOF"
4262# Generated by ktest.pl
4263#
4264
4265# PWD is a ktest.pl variable that will result in the process working
4266# directory that ktest.pl is executed in.
4267
4268# THIS_DIR is automatically assigned the PWD of the path that generated
4269# the config file. It is best to use this variable when assigning other
4270# directory paths within this directory. This allows you to easily
4271# move the test cases to other locations or to other machines.
4272#
4273THIS_DIR := $variable{"PWD"}
4274
4275# Define each test with TEST_START
4276# The config options below it will override the defaults
4277TEST_START
4278TEST_TYPE = $default{"TEST_TYPE"}
4279
4280DEFAULTS
4281EOF
4282;
4283 close(OUT);
4284}
4285read_config $ktest_config;
4286
4287if (defined($opt{"LOG_FILE"})) {
4288 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4289}
4290
4291# Append any configs entered in manually to the config file.
4292my @new_configs = keys %entered_configs;
4293if ($#new_configs >= 0) {
4294 print "\nAppending entered in configs to $ktest_config\n";
4295 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4296 foreach my $config (@new_configs) {
4297 print OUT "$config = $entered_configs{$config}\n";
4298 $opt{$config} = process_variables($entered_configs{$config});
4299 }
4300}
4301
4302if (defined($opt{"LOG_FILE"})) {
4303 if ($opt{"CLEAR_LOG"}) {
4304 unlink $opt{"LOG_FILE"};
4305 }
4306 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4307 LOG->autoflush(1);
4308}
4309
4310doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4311
4312for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4313
4314 if (!$i) {
4315 doprint "DEFAULT OPTIONS:\n";
4316 } else {
4317 doprint "\nTEST $i OPTIONS";
4318 if (defined($repeat_tests{$i})) {
4319 $repeat = $repeat_tests{$i};
4320 doprint " ITERATE $repeat";
4321 }
4322 doprint "\n";
4323 }
4324
4325 foreach my $option (sort keys %opt) {
4326 if ($option =~ /\[(\d+)\]$/) {
4327 next if ($i != $1);
4328 } else {
4329 next if ($i);
4330 }
4331
4332 doprint "$option = $opt{$option}\n";
4333 }
4334}
4335
4336$SIG{INT} = qw(cancel_test);
4337
4338# First we need to do is the builds
4339for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4340
4341 # Do not reboot on failing test options
4342 $no_reboot = 1;
4343 $reboot_success = 0;
4344
4345 $have_version = 0;
4346
4347 $iteration = $i;
4348
4349 $build_time = 0;
4350 $install_time = 0;
4351 $reboot_time = 0;
4352 $test_time = 0;
4353
4354 undef %force_config;
4355
4356 my $makecmd = set_test_option("MAKE_CMD", $i);
4357
4358 $outputdir = set_test_option("OUTPUT_DIR", $i);
4359 $builddir = set_test_option("BUILD_DIR", $i);
4360
4361 chdir $builddir || dodie "can't change directory to $builddir";
4362
4363 if (!-d $outputdir) {
4364 mkpath($outputdir) or
4365 dodie "can't create $outputdir";
4366 }
4367
4368 $make = "$makecmd O=$outputdir";
4369
4370 # Load all the options into their mapped variable names
4371 foreach my $opt (keys %option_map) {
4372 ${$option_map{$opt}} = set_test_option($opt, $i);
4373 }
4374
4375 $start_minconfig_defined = 1;
4376
4377 # The first test may override the PRE_KTEST option
4378 if ($i == 1) {
4379 if (defined($pre_ktest)) {
4380 doprint "\n";
4381 run_command $pre_ktest;
4382 }
4383 if ($email_when_started) {
4384 my $name = get_test_name;
4385 send_email("KTEST: Your [$name] test was started",
4386 "Your test was started on $script_start_time");
4387 }
4388 }
4389
4390 # Any test can override the POST_KTEST option
4391 # The last test takes precedence.
4392 if (defined($post_ktest)) {
4393 $final_post_ktest = $post_ktest;
4394 }
4395
4396 if (!defined($start_minconfig)) {
4397 $start_minconfig_defined = 0;
4398 $start_minconfig = $minconfig;
4399 }
4400
4401 if (!-d $tmpdir) {
4402 mkpath($tmpdir) or
4403 dodie "can't create $tmpdir";
4404 }
4405
4406 $ENV{"SSH_USER"} = $ssh_user;
4407 $ENV{"MACHINE"} = $machine;
4408
4409 $buildlog = "$tmpdir/buildlog-$machine";
4410 $testlog = "$tmpdir/testlog-$machine";
4411 $dmesg = "$tmpdir/dmesg-$machine";
4412 $output_config = "$outputdir/.config";
4413
4414 if (!$buildonly) {
4415 $target = "$ssh_user\@$machine";
4416 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4417 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4418 } elsif ($reboot_type eq "grub2") {
4419 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4420 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4421 } elsif ($reboot_type eq "syslinux") {
4422 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4423 }
4424 }
4425
4426 my $run_type = $build_type;
4427 if ($test_type eq "patchcheck") {
4428 $run_type = $patchcheck_type;
4429 } elsif ($test_type eq "bisect") {
4430 $run_type = $bisect_type;
4431 } elsif ($test_type eq "config_bisect") {
4432 $run_type = $config_bisect_type;
4433 } elsif ($test_type eq "make_min_config") {
4434 $run_type = "";
4435 } elsif ($test_type eq "make_warnings_file") {
4436 $run_type = "";
4437 }
4438
4439 # mistake in config file?
4440 if (!defined($run_type)) {
4441 $run_type = "ERROR";
4442 }
4443
4444 my $installme = "";
4445 $installme = " no_install" if ($no_install);
4446
4447 my $name = "";
4448
4449 if (defined($test_name)) {
4450 $name = " ($test_name)";
4451 }
4452
4453 doprint "\n\n";
4454
4455 if (defined($opt{"LOG_FILE"})) {
4456 $test_log_start = tell(LOG);
4457 }
4458
4459 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4460
4461 if (defined($pre_test)) {
4462 my $ret = run_command $pre_test;
4463 if (!$ret && defined($pre_test_die) &&
4464 $pre_test_die) {
4465 dodie "failed to pre_test\n";
4466 }
4467 }
4468
4469 unlink $dmesg;
4470 unlink $buildlog;
4471 unlink $testlog;
4472
4473 if (defined($addconfig)) {
4474 my $min = $minconfig;
4475 if (!defined($minconfig)) {
4476 $min = "";
4477 }
4478 run_command "cat $addconfig $min > $tmpdir/add_config" or
4479 dodie "Failed to create temp config";
4480 $minconfig = "$tmpdir/add_config";
4481 }
4482
4483 if (defined($checkout)) {
4484 run_command "git checkout $checkout" or
4485 dodie "failed to checkout $checkout";
4486 }
4487
4488 $no_reboot = 0;
4489
4490 # A test may opt to not reboot the box
4491 if ($reboot_on_success) {
4492 $reboot_success = 1;
4493 }
4494
4495 if ($test_type eq "bisect") {
4496 bisect $i;
4497 next;
4498 } elsif ($test_type eq "config_bisect") {
4499 config_bisect $i;
4500 next;
4501 } elsif ($test_type eq "patchcheck") {
4502 patchcheck $i;
4503 next;
4504 } elsif ($test_type eq "make_min_config") {
4505 make_min_config $i;
4506 next;
4507 } elsif ($test_type eq "make_warnings_file") {
4508 $no_reboot = 1;
4509 make_warnings_file $i;
4510 next;
4511 }
4512
4513 if ($build_type ne "nobuild") {
4514 build $build_type or next;
4515 check_buildlog or next;
4516 }
4517
4518 if ($test_type eq "install") {
4519 get_version;
4520 install;
4521 success $i;
4522 next;
4523 }
4524
4525 if ($test_type ne "build") {
4526 my $failed = 0;
4527 start_monitor_and_install or $failed = 1;
4528
4529 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4530 do_run_test or $failed = 1;
4531 }
4532 end_monitor;
4533 if ($failed) {
4534 print_times;
4535 next;
4536 }
4537 }
4538
4539 print_times;
4540
4541 success $i;
4542}
4543
4544if (defined($final_post_ktest)) {
4545
4546 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4547 run_command $cp_final_post_ktest;
4548}
4549
4550if ($opt{"POWEROFF_ON_SUCCESS"}) {
4551 halt;
4552} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4553 reboot_to_good;
4554} elsif (defined($switch_to_good)) {
4555 # still need to get to the good kernel
4556 run_command $switch_to_good;
4557}
4558
4559doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4560
4561if ($email_when_finished) {
4562 send_email("KTEST: Your test has finished!",
4563 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4564}
4565
4566if (defined($opt{"LOG_FILE"})) {
4567 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4568 close LOG;
4569}
4570
4571exit 0;
4572
4573##
4574# The following are here to standardize tabs/spaces/etc across the most likely editors
4575###
4576
4577# Local Variables:
4578# mode: perl
4579# End:
4580# vim: softtabstop=4