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