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1#!/usr/bin/perl -w
2#
3# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
4# Licensed under the terms of the GNU GPL License version 2
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13
14my $VERSION = "0.2";
15
16$| = 1;
17
18my %opt;
19my %repeat_tests;
20my %repeats;
21my %evals;
22
23#default opts
24my %default = (
25 "NUM_TESTS" => 1,
26 "TEST_TYPE" => "build",
27 "BUILD_TYPE" => "randconfig",
28 "MAKE_CMD" => "make",
29 "CLOSE_CONSOLE_SIGNAL" => "INT",
30 "TIMEOUT" => 120,
31 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
32 "SLEEP_TIME" => 60, # sleep time between tests
33 "BUILD_NOCLEAN" => 0,
34 "REBOOT_ON_ERROR" => 0,
35 "POWEROFF_ON_ERROR" => 0,
36 "REBOOT_ON_SUCCESS" => 1,
37 "POWEROFF_ON_SUCCESS" => 0,
38 "BUILD_OPTIONS" => "",
39 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
40 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
41 "CLEAR_LOG" => 0,
42 "BISECT_MANUAL" => 0,
43 "BISECT_SKIP" => 1,
44 "BISECT_TRIES" => 1,
45 "MIN_CONFIG_TYPE" => "boot",
46 "SUCCESS_LINE" => "login:",
47 "DETECT_TRIPLE_FAULT" => 1,
48 "NO_INSTALL" => 0,
49 "BOOTED_TIMEOUT" => 1,
50 "DIE_ON_FAILURE" => 1,
51 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
52 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
53 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
54 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
55 "STOP_AFTER_SUCCESS" => 10,
56 "STOP_AFTER_FAILURE" => 60,
57 "STOP_TEST_AFTER" => 600,
58 "MAX_MONITOR_WAIT" => 1800,
59 "GRUB_REBOOT" => "grub2-reboot",
60 "SYSLINUX" => "extlinux",
61 "SYSLINUX_PATH" => "/boot/extlinux",
62
63# required, and we will ask users if they don't have them but we keep the default
64# value something that is common.
65 "REBOOT_TYPE" => "grub",
66 "LOCALVERSION" => "-test",
67 "SSH_USER" => "root",
68 "BUILD_TARGET" => "arch/x86/boot/bzImage",
69 "TARGET_IMAGE" => "/boot/vmlinuz-test",
70
71 "LOG_FILE" => undef,
72 "IGNORE_UNUSED" => 0,
73);
74
75my $ktest_config = "ktest.conf";
76my $version;
77my $have_version = 0;
78my $machine;
79my $last_machine;
80my $ssh_user;
81my $tmpdir;
82my $builddir;
83my $outputdir;
84my $output_config;
85my $test_type;
86my $build_type;
87my $build_options;
88my $final_post_ktest;
89my $pre_ktest;
90my $post_ktest;
91my $pre_test;
92my $post_test;
93my $pre_build;
94my $post_build;
95my $pre_build_die;
96my $post_build_die;
97my $reboot_type;
98my $reboot_script;
99my $power_cycle;
100my $reboot;
101my $reboot_on_error;
102my $switch_to_good;
103my $switch_to_test;
104my $poweroff_on_error;
105my $reboot_on_success;
106my $die_on_failure;
107my $powercycle_after_reboot;
108my $poweroff_after_halt;
109my $max_monitor_wait;
110my $ssh_exec;
111my $scp_to_target;
112my $scp_to_target_install;
113my $power_off;
114my $grub_menu;
115my $last_grub_menu;
116my $grub_file;
117my $grub_number;
118my $grub_reboot;
119my $syslinux;
120my $syslinux_path;
121my $syslinux_label;
122my $target;
123my $make;
124my $pre_install;
125my $post_install;
126my $no_install;
127my $noclean;
128my $minconfig;
129my $start_minconfig;
130my $start_minconfig_defined;
131my $output_minconfig;
132my $minconfig_type;
133my $use_output_minconfig;
134my $warnings_file;
135my $ignore_config;
136my $ignore_errors;
137my $addconfig;
138my $in_bisect = 0;
139my $bisect_bad_commit = "";
140my $reverse_bisect;
141my $bisect_manual;
142my $bisect_skip;
143my $bisect_tries;
144my $config_bisect_good;
145my $bisect_ret_good;
146my $bisect_ret_bad;
147my $bisect_ret_skip;
148my $bisect_ret_abort;
149my $bisect_ret_default;
150my $in_patchcheck = 0;
151my $run_test;
152my $buildlog;
153my $testlog;
154my $dmesg;
155my $monitor_fp;
156my $monitor_pid;
157my $monitor_cnt = 0;
158my $sleep_time;
159my $bisect_sleep_time;
160my $patchcheck_sleep_time;
161my $ignore_warnings;
162my $store_failures;
163my $store_successes;
164my $test_name;
165my $timeout;
166my $booted_timeout;
167my $detect_triplefault;
168my $console;
169my $close_console_signal;
170my $reboot_success_line;
171my $success_line;
172my $stop_after_success;
173my $stop_after_failure;
174my $stop_test_after;
175my $build_target;
176my $target_image;
177my $checkout;
178my $localversion;
179my $iteration = 0;
180my $successes = 0;
181my $stty_orig;
182
183my $bisect_good;
184my $bisect_bad;
185my $bisect_type;
186my $bisect_start;
187my $bisect_replay;
188my $bisect_files;
189my $bisect_reverse;
190my $bisect_check;
191
192my $config_bisect;
193my $config_bisect_type;
194my $config_bisect_check;
195
196my $patchcheck_type;
197my $patchcheck_start;
198my $patchcheck_cherry;
199my $patchcheck_end;
200
201my $build_time;
202my $install_time;
203my $reboot_time;
204my $test_time;
205
206# set when a test is something other that just building or install
207# which would require more options.
208my $buildonly = 1;
209
210# tell build not to worry about warnings, even when WARNINGS_FILE is set
211my $warnings_ok = 0;
212
213# set when creating a new config
214my $newconfig = 0;
215
216my %entered_configs;
217my %config_help;
218my %variable;
219
220# force_config is the list of configs that we force enabled (or disabled)
221# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
222my %force_config;
223
224# do not force reboots on config problems
225my $no_reboot = 1;
226
227# reboot on success
228my $reboot_success = 0;
229
230my %option_map = (
231 "MACHINE" => \$machine,
232 "SSH_USER" => \$ssh_user,
233 "TMP_DIR" => \$tmpdir,
234 "OUTPUT_DIR" => \$outputdir,
235 "BUILD_DIR" => \$builddir,
236 "TEST_TYPE" => \$test_type,
237 "PRE_KTEST" => \$pre_ktest,
238 "POST_KTEST" => \$post_ktest,
239 "PRE_TEST" => \$pre_test,
240 "POST_TEST" => \$post_test,
241 "BUILD_TYPE" => \$build_type,
242 "BUILD_OPTIONS" => \$build_options,
243 "PRE_BUILD" => \$pre_build,
244 "POST_BUILD" => \$post_build,
245 "PRE_BUILD_DIE" => \$pre_build_die,
246 "POST_BUILD_DIE" => \$post_build_die,
247 "POWER_CYCLE" => \$power_cycle,
248 "REBOOT" => \$reboot,
249 "BUILD_NOCLEAN" => \$noclean,
250 "MIN_CONFIG" => \$minconfig,
251 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
252 "START_MIN_CONFIG" => \$start_minconfig,
253 "MIN_CONFIG_TYPE" => \$minconfig_type,
254 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
255 "WARNINGS_FILE" => \$warnings_file,
256 "IGNORE_CONFIG" => \$ignore_config,
257 "TEST" => \$run_test,
258 "ADD_CONFIG" => \$addconfig,
259 "REBOOT_TYPE" => \$reboot_type,
260 "GRUB_MENU" => \$grub_menu,
261 "GRUB_FILE" => \$grub_file,
262 "GRUB_REBOOT" => \$grub_reboot,
263 "SYSLINUX" => \$syslinux,
264 "SYSLINUX_PATH" => \$syslinux_path,
265 "SYSLINUX_LABEL" => \$syslinux_label,
266 "PRE_INSTALL" => \$pre_install,
267 "POST_INSTALL" => \$post_install,
268 "NO_INSTALL" => \$no_install,
269 "REBOOT_SCRIPT" => \$reboot_script,
270 "REBOOT_ON_ERROR" => \$reboot_on_error,
271 "SWITCH_TO_GOOD" => \$switch_to_good,
272 "SWITCH_TO_TEST" => \$switch_to_test,
273 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
274 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
275 "DIE_ON_FAILURE" => \$die_on_failure,
276 "POWER_OFF" => \$power_off,
277 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
278 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
279 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
280 "SLEEP_TIME" => \$sleep_time,
281 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
282 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
283 "IGNORE_WARNINGS" => \$ignore_warnings,
284 "IGNORE_ERRORS" => \$ignore_errors,
285 "BISECT_MANUAL" => \$bisect_manual,
286 "BISECT_SKIP" => \$bisect_skip,
287 "BISECT_TRIES" => \$bisect_tries,
288 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
289 "BISECT_RET_GOOD" => \$bisect_ret_good,
290 "BISECT_RET_BAD" => \$bisect_ret_bad,
291 "BISECT_RET_SKIP" => \$bisect_ret_skip,
292 "BISECT_RET_ABORT" => \$bisect_ret_abort,
293 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
294 "STORE_FAILURES" => \$store_failures,
295 "STORE_SUCCESSES" => \$store_successes,
296 "TEST_NAME" => \$test_name,
297 "TIMEOUT" => \$timeout,
298 "BOOTED_TIMEOUT" => \$booted_timeout,
299 "CONSOLE" => \$console,
300 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
301 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
302 "SUCCESS_LINE" => \$success_line,
303 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
304 "STOP_AFTER_SUCCESS" => \$stop_after_success,
305 "STOP_AFTER_FAILURE" => \$stop_after_failure,
306 "STOP_TEST_AFTER" => \$stop_test_after,
307 "BUILD_TARGET" => \$build_target,
308 "SSH_EXEC" => \$ssh_exec,
309 "SCP_TO_TARGET" => \$scp_to_target,
310 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
311 "CHECKOUT" => \$checkout,
312 "TARGET_IMAGE" => \$target_image,
313 "LOCALVERSION" => \$localversion,
314
315 "BISECT_GOOD" => \$bisect_good,
316 "BISECT_BAD" => \$bisect_bad,
317 "BISECT_TYPE" => \$bisect_type,
318 "BISECT_START" => \$bisect_start,
319 "BISECT_REPLAY" => \$bisect_replay,
320 "BISECT_FILES" => \$bisect_files,
321 "BISECT_REVERSE" => \$bisect_reverse,
322 "BISECT_CHECK" => \$bisect_check,
323
324 "CONFIG_BISECT" => \$config_bisect,
325 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
326 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
327
328 "PATCHCHECK_TYPE" => \$patchcheck_type,
329 "PATCHCHECK_START" => \$patchcheck_start,
330 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
331 "PATCHCHECK_END" => \$patchcheck_end,
332);
333
334# Options may be used by other options, record them.
335my %used_options;
336
337# default variables that can be used
338chomp ($variable{"PWD"} = `pwd`);
339
340$config_help{"MACHINE"} = << "EOF"
341 The machine hostname that you will test.
342 For build only tests, it is still needed to differentiate log files.
343EOF
344 ;
345$config_help{"SSH_USER"} = << "EOF"
346 The box is expected to have ssh on normal bootup, provide the user
347 (most likely root, since you need privileged operations)
348EOF
349 ;
350$config_help{"BUILD_DIR"} = << "EOF"
351 The directory that contains the Linux source code (full path).
352 You can use \${PWD} that will be the path where ktest.pl is run, or use
353 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
354EOF
355 ;
356$config_help{"OUTPUT_DIR"} = << "EOF"
357 The directory that the objects will be built (full path).
358 (can not be same as BUILD_DIR)
359 You can use \${PWD} that will be the path where ktest.pl is run, or use
360 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
361EOF
362 ;
363$config_help{"BUILD_TARGET"} = << "EOF"
364 The location of the compiled file to copy to the target.
365 (relative to OUTPUT_DIR)
366EOF
367 ;
368$config_help{"BUILD_OPTIONS"} = << "EOF"
369 Options to add to \"make\" when building.
370 i.e. -j20
371EOF
372 ;
373$config_help{"TARGET_IMAGE"} = << "EOF"
374 The place to put your image on the test machine.
375EOF
376 ;
377$config_help{"POWER_CYCLE"} = << "EOF"
378 A script or command to reboot the box.
379
380 Here is a digital loggers power switch example
381 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
382
383 Here is an example to reboot a virtual box on the current host
384 with the name "Guest".
385 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
386EOF
387 ;
388$config_help{"CONSOLE"} = << "EOF"
389 The script or command that reads the console
390
391 If you use ttywatch server, something like the following would work.
392CONSOLE = nc -d localhost 3001
393
394 For a virtual machine with guest name "Guest".
395CONSOLE = virsh console Guest
396EOF
397 ;
398$config_help{"LOCALVERSION"} = << "EOF"
399 Required version ending to differentiate the test
400 from other linux builds on the system.
401EOF
402 ;
403$config_help{"REBOOT_TYPE"} = << "EOF"
404 Way to reboot the box to the test kernel.
405 Only valid options so far are "grub", "grub2", "syslinux", and "script".
406
407 If you specify grub, it will assume grub version 1
408 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
409 and select that target to reboot to the kernel. If this is not
410 your setup, then specify "script" and have a command or script
411 specified in REBOOT_SCRIPT to boot to the target.
412
413 The entry in /boot/grub/menu.lst must be entered in manually.
414 The test will not modify that file.
415
416 If you specify grub2, then you also need to specify both \$GRUB_MENU
417 and \$GRUB_FILE.
418
419 If you specify syslinux, then you may use SYSLINUX to define the syslinux
420 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
421 the syslinux install (defaults to /boot/extlinux). But you have to specify
422 SYSLINUX_LABEL to define the label to boot to for the test kernel.
423EOF
424 ;
425$config_help{"GRUB_MENU"} = << "EOF"
426 The grub title name for the test kernel to boot
427 (Only mandatory if REBOOT_TYPE = grub or grub2)
428
429 Note, ktest.pl will not update the grub menu.lst, you need to
430 manually add an option for the test. ktest.pl will search
431 the grub menu.lst for this option to find what kernel to
432 reboot into.
433
434 For example, if in the /boot/grub/menu.lst the test kernel title has:
435 title Test Kernel
436 kernel vmlinuz-test
437 GRUB_MENU = Test Kernel
438
439 For grub2, a search of \$GRUB_FILE is performed for the lines
440 that begin with "menuentry". It will not detect submenus. The
441 menu must be a non-nested menu. Add the quotes used in the menu
442 to guarantee your selection, as the first menuentry with the content
443 of \$GRUB_MENU that is found will be used.
444EOF
445 ;
446$config_help{"GRUB_FILE"} = << "EOF"
447 If grub2 is used, the full path for the grub.cfg file is placed
448 here. Use something like /boot/grub2/grub.cfg to search.
449EOF
450 ;
451$config_help{"SYSLINUX_LABEL"} = << "EOF"
452 If syslinux is used, the label that boots the target kernel must
453 be specified with SYSLINUX_LABEL.
454EOF
455 ;
456$config_help{"REBOOT_SCRIPT"} = << "EOF"
457 A script to reboot the target into the test kernel
458 (Only mandatory if REBOOT_TYPE = script)
459EOF
460 ;
461
462sub _logit {
463 if (defined($opt{"LOG_FILE"})) {
464 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
465 print OUT @_;
466 close(OUT);
467 }
468}
469
470sub logit {
471 if (defined($opt{"LOG_FILE"})) {
472 _logit @_;
473 } else {
474 print @_;
475 }
476}
477
478sub doprint {
479 print @_;
480 _logit @_;
481}
482
483sub read_prompt {
484 my ($cancel, $prompt) = @_;
485
486 my $ans;
487
488 for (;;) {
489 if ($cancel) {
490 print "$prompt [y/n/C] ";
491 } else {
492 print "$prompt [Y/n] ";
493 }
494 $ans = <STDIN>;
495 chomp $ans;
496 if ($ans =~ /^\s*$/) {
497 if ($cancel) {
498 $ans = "c";
499 } else {
500 $ans = "y";
501 }
502 }
503 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
504 if ($cancel) {
505 last if ($ans =~ /^c$/i);
506 print "Please answer either 'y', 'n' or 'c'.\n";
507 } else {
508 print "Please answer either 'y' or 'n'.\n";
509 }
510 }
511 if ($ans =~ /^c/i) {
512 exit;
513 }
514 if ($ans !~ /^y$/i) {
515 return 0;
516 }
517 return 1;
518}
519
520sub read_yn {
521 my ($prompt) = @_;
522
523 return read_prompt 0, $prompt;
524}
525
526sub read_ync {
527 my ($prompt) = @_;
528
529 return read_prompt 1, $prompt;
530}
531
532sub get_mandatory_config {
533 my ($config) = @_;
534 my $ans;
535
536 return if (defined($opt{$config}));
537
538 if (defined($config_help{$config})) {
539 print "\n";
540 print $config_help{$config};
541 }
542
543 for (;;) {
544 print "$config = ";
545 if (defined($default{$config}) && length($default{$config})) {
546 print "\[$default{$config}\] ";
547 }
548 $ans = <STDIN>;
549 $ans =~ s/^\s*(.*\S)\s*$/$1/;
550 if ($ans =~ /^\s*$/) {
551 if ($default{$config}) {
552 $ans = $default{$config};
553 } else {
554 print "Your answer can not be blank\n";
555 next;
556 }
557 }
558 $entered_configs{$config} = ${ans};
559 last;
560 }
561}
562
563sub show_time {
564 my ($time) = @_;
565
566 my $hours = 0;
567 my $minutes = 0;
568
569 if ($time > 3600) {
570 $hours = int($time / 3600);
571 $time -= $hours * 3600;
572 }
573 if ($time > 60) {
574 $minutes = int($time / 60);
575 $time -= $minutes * 60;
576 }
577
578 if ($hours > 0) {
579 doprint "$hours hour";
580 doprint "s" if ($hours > 1);
581 doprint " ";
582 }
583
584 if ($minutes > 0) {
585 doprint "$minutes minute";
586 doprint "s" if ($minutes > 1);
587 doprint " ";
588 }
589
590 doprint "$time second";
591 doprint "s" if ($time != 1);
592}
593
594sub print_times {
595 doprint "\n";
596 if ($build_time) {
597 doprint "Build time: ";
598 show_time($build_time);
599 doprint "\n";
600 }
601 if ($install_time) {
602 doprint "Install time: ";
603 show_time($install_time);
604 doprint "\n";
605 }
606 if ($reboot_time) {
607 doprint "Reboot time: ";
608 show_time($reboot_time);
609 doprint "\n";
610 }
611 if ($test_time) {
612 doprint "Test time: ";
613 show_time($test_time);
614 doprint "\n";
615 }
616 # reset for iterations like bisect
617 $build_time = 0;
618 $install_time = 0;
619 $reboot_time = 0;
620 $test_time = 0;
621}
622
623sub get_mandatory_configs {
624 get_mandatory_config("MACHINE");
625 get_mandatory_config("BUILD_DIR");
626 get_mandatory_config("OUTPUT_DIR");
627
628 if ($newconfig) {
629 get_mandatory_config("BUILD_OPTIONS");
630 }
631
632 # options required for other than just building a kernel
633 if (!$buildonly) {
634 get_mandatory_config("POWER_CYCLE");
635 get_mandatory_config("CONSOLE");
636 }
637
638 # options required for install and more
639 if ($buildonly != 1) {
640 get_mandatory_config("SSH_USER");
641 get_mandatory_config("BUILD_TARGET");
642 get_mandatory_config("TARGET_IMAGE");
643 }
644
645 get_mandatory_config("LOCALVERSION");
646
647 return if ($buildonly);
648
649 my $rtype = $opt{"REBOOT_TYPE"};
650
651 if (!defined($rtype)) {
652 if (!defined($opt{"GRUB_MENU"})) {
653 get_mandatory_config("REBOOT_TYPE");
654 $rtype = $entered_configs{"REBOOT_TYPE"};
655 } else {
656 $rtype = "grub";
657 }
658 }
659
660 if ($rtype eq "grub") {
661 get_mandatory_config("GRUB_MENU");
662 }
663
664 if ($rtype eq "grub2") {
665 get_mandatory_config("GRUB_MENU");
666 get_mandatory_config("GRUB_FILE");
667 }
668
669 if ($rtype eq "syslinux") {
670 get_mandatory_config("SYSLINUX_LABEL");
671 }
672}
673
674sub process_variables {
675 my ($value, $remove_undef) = @_;
676 my $retval = "";
677
678 # We want to check for '\', and it is just easier
679 # to check the previous characet of '$' and not need
680 # to worry if '$' is the first character. By adding
681 # a space to $value, we can just check [^\\]\$ and
682 # it will still work.
683 $value = " $value";
684
685 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
686 my $begin = $1;
687 my $var = $2;
688 my $end = $3;
689 # append beginning of value to retval
690 $retval = "$retval$begin";
691 if (defined($variable{$var})) {
692 $retval = "$retval$variable{$var}";
693 } elsif (defined($remove_undef) && $remove_undef) {
694 # for if statements, any variable that is not defined,
695 # we simple convert to 0
696 $retval = "${retval}0";
697 } else {
698 # put back the origin piece.
699 $retval = "$retval\$\{$var\}";
700 # This could be an option that is used later, save
701 # it so we don't warn if this option is not one of
702 # ktests options.
703 $used_options{$var} = 1;
704 }
705 $value = $end;
706 }
707 $retval = "$retval$value";
708
709 # remove the space added in the beginning
710 $retval =~ s/ //;
711
712 return "$retval"
713}
714
715sub set_value {
716 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
717
718 my $prvalue = process_variables($rvalue);
719
720 if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
721 # Note if a test is something other than build, then we
722 # will need other mandatory options.
723 if ($prvalue ne "install") {
724 # for bisect, we need to check BISECT_TYPE
725 if ($prvalue ne "bisect") {
726 $buildonly = 0;
727 }
728 } else {
729 # install still limits some mandatory options.
730 $buildonly = 2;
731 }
732 }
733
734 if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
735 if ($prvalue ne "install") {
736 $buildonly = 0;
737 } else {
738 # install still limits some mandatory options.
739 $buildonly = 2;
740 }
741 }
742
743 if (defined($opt{$lvalue})) {
744 if (!$override || defined(${$overrides}{$lvalue})) {
745 my $extra = "";
746 if ($override) {
747 $extra = "In the same override section!\n";
748 }
749 die "$name: $.: Option $lvalue defined more than once!\n$extra";
750 }
751 ${$overrides}{$lvalue} = $prvalue;
752 }
753
754 $opt{$lvalue} = $prvalue;
755}
756
757sub set_eval {
758 my ($lvalue, $rvalue, $name) = @_;
759
760 my $prvalue = process_variables($rvalue);
761 my $arr;
762
763 if (defined($evals{$lvalue})) {
764 $arr = $evals{$lvalue};
765 } else {
766 $arr = [];
767 $evals{$lvalue} = $arr;
768 }
769
770 push @{$arr}, $rvalue;
771}
772
773sub set_variable {
774 my ($lvalue, $rvalue) = @_;
775
776 if ($rvalue =~ /^\s*$/) {
777 delete $variable{$lvalue};
778 } else {
779 $rvalue = process_variables($rvalue);
780 $variable{$lvalue} = $rvalue;
781 }
782}
783
784sub process_compare {
785 my ($lval, $cmp, $rval) = @_;
786
787 # remove whitespace
788
789 $lval =~ s/^\s*//;
790 $lval =~ s/\s*$//;
791
792 $rval =~ s/^\s*//;
793 $rval =~ s/\s*$//;
794
795 if ($cmp eq "==") {
796 return $lval eq $rval;
797 } elsif ($cmp eq "!=") {
798 return $lval ne $rval;
799 } elsif ($cmp eq "=~") {
800 return $lval =~ m/$rval/;
801 } elsif ($cmp eq "!~") {
802 return $lval !~ m/$rval/;
803 }
804
805 my $statement = "$lval $cmp $rval";
806 my $ret = eval $statement;
807
808 # $@ stores error of eval
809 if ($@) {
810 return -1;
811 }
812
813 return $ret;
814}
815
816sub value_defined {
817 my ($val) = @_;
818
819 return defined($variable{$2}) ||
820 defined($opt{$2});
821}
822
823my $d = 0;
824sub process_expression {
825 my ($name, $val) = @_;
826
827 my $c = $d++;
828
829 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
830 my $express = $1;
831
832 if (process_expression($name, $express)) {
833 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
834 } else {
835 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
836 }
837 }
838
839 $d--;
840 my $OR = "\\|\\|";
841 my $AND = "\\&\\&";
842
843 while ($val =~ s/^(.*?)($OR|$AND)//) {
844 my $express = $1;
845 my $op = $2;
846
847 if (process_expression($name, $express)) {
848 if ($op eq "||") {
849 return 1;
850 }
851 } else {
852 if ($op eq "&&") {
853 return 0;
854 }
855 }
856 }
857
858 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
859 my $ret = process_compare($1, $2, $3);
860 if ($ret < 0) {
861 die "$name: $.: Unable to process comparison\n";
862 }
863 return $ret;
864 }
865
866 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
867 if (defined $1) {
868 return !value_defined($2);
869 } else {
870 return value_defined($2);
871 }
872 }
873
874 if ($val =~ /^\s*0\s*$/) {
875 return 0;
876 } elsif ($val =~ /^\s*\d+\s*$/) {
877 return 1;
878 }
879
880 die ("$name: $.: Undefined content $val in if statement\n");
881}
882
883sub process_if {
884 my ($name, $value) = @_;
885
886 # Convert variables and replace undefined ones with 0
887 my $val = process_variables($value, 1);
888 my $ret = process_expression $name, $val;
889
890 return $ret;
891}
892
893sub __read_config {
894 my ($config, $current_test_num) = @_;
895
896 my $in;
897 open($in, $config) || die "can't read file $config";
898
899 my $name = $config;
900 $name =~ s,.*/(.*),$1,;
901
902 my $test_num = $$current_test_num;
903 my $default = 1;
904 my $repeat = 1;
905 my $num_tests_set = 0;
906 my $skip = 0;
907 my $rest;
908 my $line;
909 my $test_case = 0;
910 my $if = 0;
911 my $if_set = 0;
912 my $override = 0;
913
914 my %overrides;
915
916 while (<$in>) {
917
918 # ignore blank lines and comments
919 next if (/^\s*$/ || /\s*\#/);
920
921 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
922
923 my $type = $1;
924 $rest = $2;
925 $line = $2;
926
927 my $old_test_num;
928 my $old_repeat;
929 $override = 0;
930
931 if ($type eq "TEST_START") {
932
933 if ($num_tests_set) {
934 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
935 }
936
937 $old_test_num = $test_num;
938 $old_repeat = $repeat;
939
940 $test_num += $repeat;
941 $default = 0;
942 $repeat = 1;
943 } else {
944 $default = 1;
945 }
946
947 # If SKIP is anywhere in the line, the command will be skipped
948 if ($rest =~ s/\s+SKIP\b//) {
949 $skip = 1;
950 } else {
951 $test_case = 1;
952 $skip = 0;
953 }
954
955 if ($rest =~ s/\sELSE\b//) {
956 if (!$if) {
957 die "$name: $.: ELSE found with out matching IF section\n$_";
958 }
959 $if = 0;
960
961 if ($if_set) {
962 $skip = 1;
963 } else {
964 $skip = 0;
965 }
966 }
967
968 if ($rest =~ s/\sIF\s+(.*)//) {
969 if (process_if($name, $1)) {
970 $if_set = 1;
971 } else {
972 $skip = 1;
973 }
974 $if = 1;
975 } else {
976 $if = 0;
977 $if_set = 0;
978 }
979
980 if (!$skip) {
981 if ($type eq "TEST_START") {
982 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
983 $repeat = $1;
984 $repeat_tests{"$test_num"} = $repeat;
985 }
986 } elsif ($rest =~ s/\sOVERRIDE\b//) {
987 # DEFAULT only
988 $override = 1;
989 # Clear previous overrides
990 %overrides = ();
991 }
992 }
993
994 if (!$skip && $rest !~ /^\s*$/) {
995 die "$name: $.: Gargbage found after $type\n$_";
996 }
997
998 if ($skip && $type eq "TEST_START") {
999 $test_num = $old_test_num;
1000 $repeat = $old_repeat;
1001 }
1002
1003 } elsif (/^\s*ELSE\b(.*)$/) {
1004 if (!$if) {
1005 die "$name: $.: ELSE found with out matching IF section\n$_";
1006 }
1007 $rest = $1;
1008 if ($if_set) {
1009 $skip = 1;
1010 $rest = "";
1011 } else {
1012 $skip = 0;
1013
1014 if ($rest =~ /\sIF\s+(.*)/) {
1015 # May be a ELSE IF section.
1016 if (process_if($name, $1)) {
1017 $if_set = 1;
1018 } else {
1019 $skip = 1;
1020 }
1021 $rest = "";
1022 } else {
1023 $if = 0;
1024 }
1025 }
1026
1027 if ($rest !~ /^\s*$/) {
1028 die "$name: $.: Gargbage found after DEFAULTS\n$_";
1029 }
1030
1031 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1032
1033 next if ($skip);
1034
1035 if (!$default) {
1036 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1037 }
1038
1039 my $file = process_variables($1);
1040
1041 if ($file !~ m,^/,) {
1042 # check the path of the config file first
1043 if ($config =~ m,(.*)/,) {
1044 if (-f "$1/$file") {
1045 $file = "$1/$file";
1046 }
1047 }
1048 }
1049
1050 if ( ! -r $file ) {
1051 die "$name: $.: Can't read file $file\n$_";
1052 }
1053
1054 if (__read_config($file, \$test_num)) {
1055 $test_case = 1;
1056 }
1057
1058 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1059
1060 next if ($skip);
1061
1062 my $lvalue = $1;
1063 my $rvalue = $2;
1064
1065 if ($default || $lvalue =~ /\[\d+\]$/) {
1066 set_eval($lvalue, $rvalue, $name);
1067 } else {
1068 my $val = "$lvalue\[$test_num\]";
1069 set_eval($val, $rvalue, $name);
1070 }
1071
1072 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1073
1074 next if ($skip);
1075
1076 my $lvalue = $1;
1077 my $rvalue = $2;
1078
1079 if (!$default &&
1080 ($lvalue eq "NUM_TESTS" ||
1081 $lvalue eq "LOG_FILE" ||
1082 $lvalue eq "CLEAR_LOG")) {
1083 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1084 }
1085
1086 if ($lvalue eq "NUM_TESTS") {
1087 if ($test_num) {
1088 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1089 }
1090 if (!$default) {
1091 die "$name: $.: NUM_TESTS must be set in default section\n";
1092 }
1093 $num_tests_set = 1;
1094 }
1095
1096 if ($default || $lvalue =~ /\[\d+\]$/) {
1097 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1098 } else {
1099 my $val = "$lvalue\[$test_num\]";
1100 set_value($val, $rvalue, $override, \%overrides, $name);
1101
1102 if ($repeat > 1) {
1103 $repeats{$val} = $repeat;
1104 }
1105 }
1106 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1107 next if ($skip);
1108
1109 my $lvalue = $1;
1110 my $rvalue = $2;
1111
1112 # process config variables.
1113 # Config variables are only active while reading the
1114 # config and can be defined anywhere. They also ignore
1115 # TEST_START and DEFAULTS, but are skipped if they are in
1116 # on of these sections that have SKIP defined.
1117 # The save variable can be
1118 # defined multiple times and the new one simply overrides
1119 # the prevous one.
1120 set_variable($lvalue, $rvalue);
1121
1122 } else {
1123 die "$name: $.: Garbage found in config\n$_";
1124 }
1125 }
1126
1127 if ($test_num) {
1128 $test_num += $repeat - 1;
1129 $opt{"NUM_TESTS"} = $test_num;
1130 }
1131
1132 close($in);
1133
1134 $$current_test_num = $test_num;
1135
1136 return $test_case;
1137}
1138
1139sub get_test_case {
1140 print "What test case would you like to run?\n";
1141 print " (build, install or boot)\n";
1142 print " Other tests are available but require editing the config file\n";
1143 my $ans = <STDIN>;
1144 chomp $ans;
1145 $default{"TEST_TYPE"} = $ans;
1146}
1147
1148sub read_config {
1149 my ($config) = @_;
1150
1151 my $test_case;
1152 my $test_num = 0;
1153
1154 $test_case = __read_config $config, \$test_num;
1155
1156 # make sure we have all mandatory configs
1157 get_mandatory_configs;
1158
1159 # was a test specified?
1160 if (!$test_case) {
1161 print "No test case specified.\n";
1162 get_test_case;
1163 }
1164
1165 # set any defaults
1166
1167 foreach my $default (keys %default) {
1168 if (!defined($opt{$default})) {
1169 $opt{$default} = $default{$default};
1170 }
1171 }
1172
1173 if ($opt{"IGNORE_UNUSED"} == 1) {
1174 return;
1175 }
1176
1177 my %not_used;
1178
1179 # check if there are any stragglers (typos?)
1180 foreach my $option (keys %opt) {
1181 my $op = $option;
1182 # remove per test labels.
1183 $op =~ s/\[.*\]//;
1184 if (!exists($option_map{$op}) &&
1185 !exists($default{$op}) &&
1186 !exists($used_options{$op})) {
1187 $not_used{$op} = 1;
1188 }
1189 }
1190
1191 if (%not_used) {
1192 my $s = "s are";
1193 $s = " is" if (keys %not_used == 1);
1194 print "The following option$s not used; could be a typo:\n";
1195 foreach my $option (keys %not_used) {
1196 print "$option\n";
1197 }
1198 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1199 if (!read_yn "Do you want to continue?") {
1200 exit -1;
1201 }
1202 }
1203}
1204
1205sub __eval_option {
1206 my ($name, $option, $i) = @_;
1207
1208 # Add space to evaluate the character before $
1209 $option = " $option";
1210 my $retval = "";
1211 my $repeated = 0;
1212 my $parent = 0;
1213
1214 foreach my $test (keys %repeat_tests) {
1215 if ($i >= $test &&
1216 $i < $test + $repeat_tests{$test}) {
1217
1218 $repeated = 1;
1219 $parent = $test;
1220 last;
1221 }
1222 }
1223
1224 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1225 my $start = $1;
1226 my $var = $2;
1227 my $end = $3;
1228
1229 # Append beginning of line
1230 $retval = "$retval$start";
1231
1232 # If the iteration option OPT[$i] exists, then use that.
1233 # otherwise see if the default OPT (without [$i]) exists.
1234
1235 my $o = "$var\[$i\]";
1236 my $parento = "$var\[$parent\]";
1237
1238 # If a variable contains itself, use the default var
1239 if (($var eq $name) && defined($opt{$var})) {
1240 $o = $opt{$var};
1241 $retval = "$retval$o";
1242 } elsif (defined($opt{$o})) {
1243 $o = $opt{$o};
1244 $retval = "$retval$o";
1245 } elsif ($repeated && defined($opt{$parento})) {
1246 $o = $opt{$parento};
1247 $retval = "$retval$o";
1248 } elsif (defined($opt{$var})) {
1249 $o = $opt{$var};
1250 $retval = "$retval$o";
1251 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1252 # special option KERNEL_VERSION uses kernel version
1253 get_version();
1254 $retval = "$retval$version";
1255 } else {
1256 $retval = "$retval\$\{$var\}";
1257 }
1258
1259 $option = $end;
1260 }
1261
1262 $retval = "$retval$option";
1263
1264 $retval =~ s/^ //;
1265
1266 return $retval;
1267}
1268
1269sub process_evals {
1270 my ($name, $option, $i) = @_;
1271
1272 my $option_name = "$name\[$i\]";
1273 my $ev;
1274
1275 my $old_option = $option;
1276
1277 if (defined($evals{$option_name})) {
1278 $ev = $evals{$option_name};
1279 } elsif (defined($evals{$name})) {
1280 $ev = $evals{$name};
1281 } else {
1282 return $option;
1283 }
1284
1285 for my $e (@{$ev}) {
1286 eval "\$option =~ $e";
1287 }
1288
1289 if ($option ne $old_option) {
1290 doprint("$name changed from '$old_option' to '$option'\n");
1291 }
1292
1293 return $option;
1294}
1295
1296sub eval_option {
1297 my ($name, $option, $i) = @_;
1298
1299 my $prev = "";
1300
1301 # Since an option can evaluate to another option,
1302 # keep iterating until we do not evaluate any more
1303 # options.
1304 my $r = 0;
1305 while ($prev ne $option) {
1306 # Check for recursive evaluations.
1307 # 100 deep should be more than enough.
1308 if ($r++ > 100) {
1309 die "Over 100 evaluations accurred with $option\n" .
1310 "Check for recursive variables\n";
1311 }
1312 $prev = $option;
1313 $option = __eval_option($name, $option, $i);
1314 }
1315
1316 $option = process_evals($name, $option, $i);
1317
1318 return $option;
1319}
1320
1321sub run_command;
1322sub start_monitor;
1323sub end_monitor;
1324sub wait_for_monitor;
1325
1326sub reboot {
1327 my ($time) = @_;
1328
1329 # Make sure everything has been written to disk
1330 run_ssh("sync");
1331
1332 if (defined($time)) {
1333 start_monitor;
1334 # flush out current monitor
1335 # May contain the reboot success line
1336 wait_for_monitor 1;
1337 }
1338
1339 # try to reboot normally
1340 if (run_command $reboot) {
1341 if (defined($powercycle_after_reboot)) {
1342 sleep $powercycle_after_reboot;
1343 run_command "$power_cycle";
1344 }
1345 } else {
1346 # nope? power cycle it.
1347 run_command "$power_cycle";
1348 }
1349
1350 if (defined($time)) {
1351
1352 # We only want to get to the new kernel, don't fail
1353 # if we stumble over a call trace.
1354 my $save_ignore_errors = $ignore_errors;
1355 $ignore_errors = 1;
1356
1357 # Look for the good kernel to boot
1358 if (wait_for_monitor($time, "Linux version")) {
1359 # reboot got stuck?
1360 doprint "Reboot did not finish. Forcing power cycle\n";
1361 run_command "$power_cycle";
1362 }
1363
1364 $ignore_errors = $save_ignore_errors;
1365
1366 # Still need to wait for the reboot to finish
1367 wait_for_monitor($time, $reboot_success_line);
1368
1369 end_monitor;
1370 }
1371}
1372
1373sub reboot_to_good {
1374 my ($time) = @_;
1375
1376 if (defined($switch_to_good)) {
1377 run_command $switch_to_good;
1378 }
1379
1380 reboot $time;
1381}
1382
1383sub do_not_reboot {
1384 my $i = $iteration;
1385
1386 return $test_type eq "build" || $no_reboot ||
1387 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1388 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
1389}
1390
1391sub dodie {
1392 doprint "CRITICAL FAILURE... ", @_, "\n";
1393
1394 my $i = $iteration;
1395
1396 if ($reboot_on_error && !do_not_reboot) {
1397
1398 doprint "REBOOTING\n";
1399 reboot_to_good;
1400
1401 } elsif ($poweroff_on_error && defined($power_off)) {
1402 doprint "POWERING OFF\n";
1403 `$power_off`;
1404 }
1405
1406 if (defined($opt{"LOG_FILE"})) {
1407 print " See $opt{LOG_FILE} for more info.\n";
1408 }
1409
1410 if ($monitor_cnt) {
1411 # restore terminal settings
1412 system("stty $stty_orig");
1413 }
1414
1415 die @_, "\n";
1416}
1417
1418sub create_pty {
1419 my ($ptm, $pts) = @_;
1420 my $tmp;
1421 my $TIOCSPTLCK = 0x40045431;
1422 my $TIOCGPTN = 0x80045430;
1423
1424 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1425 dodie "Cant open /dev/ptmx";
1426
1427 # unlockpt()
1428 $tmp = pack("i", 0);
1429 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1430 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1431
1432 # ptsname()
1433 ioctl($ptm, $TIOCGPTN, $tmp) or
1434 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1435 $tmp = unpack("i", $tmp);
1436
1437 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1438 dodie "Can't open /dev/pts/$tmp";
1439}
1440
1441sub exec_console {
1442 my ($ptm, $pts) = @_;
1443
1444 close($ptm);
1445
1446 close(\*STDIN);
1447 close(\*STDOUT);
1448 close(\*STDERR);
1449
1450 open(\*STDIN, '<&', $pts);
1451 open(\*STDOUT, '>&', $pts);
1452 open(\*STDERR, '>&', $pts);
1453
1454 close($pts);
1455
1456 exec $console or
1457 die "Can't open console $console";
1458}
1459
1460sub open_console {
1461 my ($ptm) = @_;
1462 my $pts = \*PTSFD;
1463 my $pid;
1464
1465 # save terminal settings
1466 $stty_orig = `stty -g`;
1467
1468 # place terminal in cbreak mode so that stdin can be read one character at
1469 # a time without having to wait for a newline
1470 system("stty -icanon -echo -icrnl");
1471
1472 create_pty($ptm, $pts);
1473
1474 $pid = fork;
1475
1476 if (!$pid) {
1477 # child
1478 exec_console($ptm, $pts)
1479 }
1480
1481 # parent
1482 close($pts);
1483
1484 return $pid;
1485
1486 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1487}
1488
1489sub close_console {
1490 my ($fp, $pid) = @_;
1491
1492 doprint "kill child process $pid\n";
1493 kill $close_console_signal, $pid;
1494
1495 print "closing!\n";
1496 close($fp);
1497
1498 # restore terminal settings
1499 system("stty $stty_orig");
1500}
1501
1502sub start_monitor {
1503 if ($monitor_cnt++) {
1504 return;
1505 }
1506 $monitor_fp = \*MONFD;
1507 $monitor_pid = open_console $monitor_fp;
1508
1509 return;
1510
1511 open(MONFD, "Stop perl from warning about single use of MONFD");
1512}
1513
1514sub end_monitor {
1515 return if (!defined $console);
1516 if (--$monitor_cnt) {
1517 return;
1518 }
1519 close_console($monitor_fp, $monitor_pid);
1520}
1521
1522sub wait_for_monitor {
1523 my ($time, $stop) = @_;
1524 my $full_line = "";
1525 my $line;
1526 my $booted = 0;
1527 my $start_time = time;
1528 my $skip_call_trace = 0;
1529 my $bug = 0;
1530 my $bug_ignored = 0;
1531 my $now;
1532
1533 doprint "** Wait for monitor to settle down **\n";
1534
1535 # read the monitor and wait for the system to calm down
1536 while (!$booted) {
1537 $line = wait_for_input($monitor_fp, $time);
1538 last if (!defined($line));
1539 print "$line";
1540 $full_line .= $line;
1541
1542 if (defined($stop) && $full_line =~ /$stop/) {
1543 doprint "wait for monitor detected $stop\n";
1544 $booted = 1;
1545 }
1546
1547 if ($full_line =~ /\[ backtrace testing \]/) {
1548 $skip_call_trace = 1;
1549 }
1550
1551 if ($full_line =~ /call trace:/i) {
1552 if (!$bug && !$skip_call_trace) {
1553 if ($ignore_errors) {
1554 $bug_ignored = 1;
1555 } else {
1556 $bug = 1;
1557 }
1558 }
1559 }
1560
1561 if ($full_line =~ /\[ end of backtrace testing \]/) {
1562 $skip_call_trace = 0;
1563 }
1564
1565 if ($full_line =~ /Kernel panic -/) {
1566 $bug = 1;
1567 }
1568
1569 if ($line =~ /\n/) {
1570 $full_line = "";
1571 }
1572 $now = time;
1573 if ($now - $start_time >= $max_monitor_wait) {
1574 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1575 return 1;
1576 }
1577 }
1578 print "** Monitor flushed **\n";
1579
1580 # if stop is defined but wasn't hit, return error
1581 # used by reboot (which wants to see a reboot)
1582 if (defined($stop) && !$booted) {
1583 $bug = 1;
1584 }
1585 return $bug;
1586}
1587
1588sub save_logs {
1589 my ($result, $basedir) = @_;
1590 my @t = localtime;
1591 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1592 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1593
1594 my $type = $build_type;
1595 if ($type =~ /useconfig/) {
1596 $type = "useconfig";
1597 }
1598
1599 my $dir = "$machine-$test_type-$type-$result-$date";
1600
1601 $dir = "$basedir/$dir";
1602
1603 if (!-d $dir) {
1604 mkpath($dir) or
1605 die "can't create $dir";
1606 }
1607
1608 my %files = (
1609 "config" => $output_config,
1610 "buildlog" => $buildlog,
1611 "dmesg" => $dmesg,
1612 "testlog" => $testlog,
1613 );
1614
1615 while (my ($name, $source) = each(%files)) {
1616 if (-f "$source") {
1617 cp "$source", "$dir/$name" or
1618 die "failed to copy $source";
1619 }
1620 }
1621
1622 doprint "*** Saved info to $dir ***\n";
1623}
1624
1625sub fail {
1626
1627 if (defined($post_test)) {
1628 run_command $post_test;
1629 }
1630
1631 if ($die_on_failure) {
1632 dodie @_;
1633 }
1634
1635 doprint "FAILED\n";
1636
1637 my $i = $iteration;
1638
1639 # no need to reboot for just building.
1640 if (!do_not_reboot) {
1641 doprint "REBOOTING\n";
1642 reboot_to_good $sleep_time;
1643 }
1644
1645 my $name = "";
1646
1647 if (defined($test_name)) {
1648 $name = " ($test_name)";
1649 }
1650
1651 print_times;
1652
1653 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1654 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1655 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1656 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1657 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1658
1659 if (defined($store_failures)) {
1660 save_logs "fail", $store_failures;
1661 }
1662
1663 return 1;
1664}
1665
1666sub run_command {
1667 my ($command, $redirect) = @_;
1668 my $start_time;
1669 my $end_time;
1670 my $dolog = 0;
1671 my $dord = 0;
1672 my $pid;
1673
1674 $start_time = time;
1675
1676 $command =~ s/\$SSH_USER/$ssh_user/g;
1677 $command =~ s/\$MACHINE/$machine/g;
1678
1679 doprint("$command ... ");
1680
1681 $pid = open(CMD, "$command 2>&1 |") or
1682 (fail "unable to exec $command" and return 0);
1683
1684 if (defined($opt{"LOG_FILE"})) {
1685 open(LOG, ">>$opt{LOG_FILE}") or
1686 dodie "failed to write to log";
1687 $dolog = 1;
1688 }
1689
1690 if (defined($redirect)) {
1691 open (RD, ">$redirect") or
1692 dodie "failed to write to redirect $redirect";
1693 $dord = 1;
1694 }
1695
1696 while (<CMD>) {
1697 print LOG if ($dolog);
1698 print RD if ($dord);
1699 }
1700
1701 waitpid($pid, 0);
1702 my $failed = $?;
1703
1704 close(CMD);
1705 close(LOG) if ($dolog);
1706 close(RD) if ($dord);
1707
1708 $end_time = time;
1709 my $delta = $end_time - $start_time;
1710
1711 if ($delta == 1) {
1712 doprint "[1 second] ";
1713 } else {
1714 doprint "[$delta seconds] ";
1715 }
1716
1717 if ($failed) {
1718 doprint "FAILED!\n";
1719 } else {
1720 doprint "SUCCESS\n";
1721 }
1722
1723 return !$failed;
1724}
1725
1726sub run_ssh {
1727 my ($cmd) = @_;
1728 my $cp_exec = $ssh_exec;
1729
1730 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1731 return run_command "$cp_exec";
1732}
1733
1734sub run_scp {
1735 my ($src, $dst, $cp_scp) = @_;
1736
1737 $cp_scp =~ s/\$SRC_FILE/$src/g;
1738 $cp_scp =~ s/\$DST_FILE/$dst/g;
1739
1740 return run_command "$cp_scp";
1741}
1742
1743sub run_scp_install {
1744 my ($src, $dst) = @_;
1745
1746 my $cp_scp = $scp_to_target_install;
1747
1748 return run_scp($src, $dst, $cp_scp);
1749}
1750
1751sub run_scp_mod {
1752 my ($src, $dst) = @_;
1753
1754 my $cp_scp = $scp_to_target;
1755
1756 return run_scp($src, $dst, $cp_scp);
1757}
1758
1759sub get_grub2_index {
1760
1761 return if (defined($grub_number) && defined($last_grub_menu) &&
1762 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1763 $last_machine eq $machine);
1764
1765 doprint "Find grub2 menu ... ";
1766 $grub_number = -1;
1767
1768 my $ssh_grub = $ssh_exec;
1769 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1770
1771 open(IN, "$ssh_grub |")
1772 or die "unable to get $grub_file";
1773
1774 my $found = 0;
1775
1776 while (<IN>) {
1777 if (/^menuentry.*$grub_menu/) {
1778 $grub_number++;
1779 $found = 1;
1780 last;
1781 } elsif (/^menuentry\s/) {
1782 $grub_number++;
1783 }
1784 }
1785 close(IN);
1786
1787 die "Could not find '$grub_menu' in $grub_file on $machine"
1788 if (!$found);
1789 doprint "$grub_number\n";
1790 $last_grub_menu = $grub_menu;
1791 $last_machine = $machine;
1792}
1793
1794sub get_grub_index {
1795
1796 if ($reboot_type eq "grub2") {
1797 get_grub2_index;
1798 return;
1799 }
1800
1801 if ($reboot_type ne "grub") {
1802 return;
1803 }
1804 return if (defined($grub_number) && defined($last_grub_menu) &&
1805 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1806 $last_machine eq $machine);
1807
1808 doprint "Find grub menu ... ";
1809 $grub_number = -1;
1810
1811 my $ssh_grub = $ssh_exec;
1812 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1813
1814 open(IN, "$ssh_grub |")
1815 or die "unable to get menu.lst";
1816
1817 my $found = 0;
1818
1819 while (<IN>) {
1820 if (/^\s*title\s+$grub_menu\s*$/) {
1821 $grub_number++;
1822 $found = 1;
1823 last;
1824 } elsif (/^\s*title\s/) {
1825 $grub_number++;
1826 }
1827 }
1828 close(IN);
1829
1830 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1831 if (!$found);
1832 doprint "$grub_number\n";
1833 $last_grub_menu = $grub_menu;
1834 $last_machine = $machine;
1835}
1836
1837sub wait_for_input
1838{
1839 my ($fp, $time) = @_;
1840 my $rin;
1841 my $rout;
1842 my $nr;
1843 my $buf;
1844 my $line;
1845 my $ch;
1846
1847 if (!defined($time)) {
1848 $time = $timeout;
1849 }
1850
1851 $rin = '';
1852 vec($rin, fileno($fp), 1) = 1;
1853 vec($rin, fileno(\*STDIN), 1) = 1;
1854
1855 while (1) {
1856 $nr = select($rout=$rin, undef, undef, $time);
1857
1858 if ($nr <= 0) {
1859 return undef;
1860 }
1861
1862 # copy data from stdin to the console
1863 if (vec($rout, fileno(\*STDIN), 1) == 1) {
1864 sysread(\*STDIN, $buf, 1000);
1865 syswrite($fp, $buf, 1000);
1866 next;
1867 }
1868
1869 $line = "";
1870
1871 # try to read one char at a time
1872 while (sysread $fp, $ch, 1) {
1873 $line .= $ch;
1874 last if ($ch eq "\n");
1875 }
1876
1877 if (!length($line)) {
1878 return undef;
1879 }
1880
1881 return $line;
1882 }
1883}
1884
1885sub reboot_to {
1886 if (defined($switch_to_test)) {
1887 run_command $switch_to_test;
1888 }
1889
1890 if ($reboot_type eq "grub") {
1891 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1892 } elsif ($reboot_type eq "grub2") {
1893 run_ssh "$grub_reboot $grub_number";
1894 } elsif ($reboot_type eq "syslinux") {
1895 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
1896 } elsif (defined $reboot_script) {
1897 run_command "$reboot_script";
1898 }
1899 reboot;
1900}
1901
1902sub get_sha1 {
1903 my ($commit) = @_;
1904
1905 doprint "git rev-list --max-count=1 $commit ... ";
1906 my $sha1 = `git rev-list --max-count=1 $commit`;
1907 my $ret = $?;
1908
1909 logit $sha1;
1910
1911 if ($ret) {
1912 doprint "FAILED\n";
1913 dodie "Failed to get git $commit";
1914 }
1915
1916 print "SUCCESS\n";
1917
1918 chomp $sha1;
1919
1920 return $sha1;
1921}
1922
1923sub monitor {
1924 my $booted = 0;
1925 my $bug = 0;
1926 my $bug_ignored = 0;
1927 my $skip_call_trace = 0;
1928 my $loops;
1929
1930 my $start_time = time;
1931
1932 wait_for_monitor 5;
1933
1934 my $line;
1935 my $full_line = "";
1936
1937 open(DMESG, "> $dmesg") or
1938 die "unable to write to $dmesg";
1939
1940 reboot_to;
1941
1942 my $success_start;
1943 my $failure_start;
1944 my $monitor_start = time;
1945 my $done = 0;
1946 my $version_found = 0;
1947
1948 while (!$done) {
1949
1950 if ($bug && defined($stop_after_failure) &&
1951 $stop_after_failure >= 0) {
1952 my $time = $stop_after_failure - (time - $failure_start);
1953 $line = wait_for_input($monitor_fp, $time);
1954 if (!defined($line)) {
1955 doprint "bug timed out after $booted_timeout seconds\n";
1956 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1957 last;
1958 }
1959 } elsif ($booted) {
1960 $line = wait_for_input($monitor_fp, $booted_timeout);
1961 if (!defined($line)) {
1962 my $s = $booted_timeout == 1 ? "" : "s";
1963 doprint "Successful boot found: break after $booted_timeout second$s\n";
1964 last;
1965 }
1966 } else {
1967 $line = wait_for_input($monitor_fp);
1968 if (!defined($line)) {
1969 my $s = $timeout == 1 ? "" : "s";
1970 doprint "Timed out after $timeout second$s\n";
1971 last;
1972 }
1973 }
1974
1975 doprint $line;
1976 print DMESG $line;
1977
1978 # we are not guaranteed to get a full line
1979 $full_line .= $line;
1980
1981 if ($full_line =~ /$success_line/) {
1982 $booted = 1;
1983 $success_start = time;
1984 }
1985
1986 if ($booted && defined($stop_after_success) &&
1987 $stop_after_success >= 0) {
1988 my $now = time;
1989 if ($now - $success_start >= $stop_after_success) {
1990 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1991 last;
1992 }
1993 }
1994
1995 if ($full_line =~ /\[ backtrace testing \]/) {
1996 $skip_call_trace = 1;
1997 }
1998
1999 if ($full_line =~ /call trace:/i) {
2000 if (!$bug && !$skip_call_trace) {
2001 if ($ignore_errors) {
2002 $bug_ignored = 1;
2003 } else {
2004 $bug = 1;
2005 $failure_start = time;
2006 }
2007 }
2008 }
2009
2010 if ($bug && defined($stop_after_failure) &&
2011 $stop_after_failure >= 0) {
2012 my $now = time;
2013 if ($now - $failure_start >= $stop_after_failure) {
2014 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2015 last;
2016 }
2017 }
2018
2019 if ($full_line =~ /\[ end of backtrace testing \]/) {
2020 $skip_call_trace = 0;
2021 }
2022
2023 if ($full_line =~ /Kernel panic -/) {
2024 $failure_start = time;
2025 $bug = 1;
2026 }
2027
2028 # Detect triple faults by testing the banner
2029 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2030 if ($1 eq $version) {
2031 $version_found = 1;
2032 } elsif ($version_found && $detect_triplefault) {
2033 # We already booted into the kernel we are testing,
2034 # but now we booted into another kernel?
2035 # Consider this a triple fault.
2036 doprint "Already booted in Linux kernel $version, but now\n";
2037 doprint "we booted into Linux kernel $1.\n";
2038 doprint "Assuming that this is a triple fault.\n";
2039 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2040 last;
2041 }
2042 }
2043
2044 if ($line =~ /\n/) {
2045 $full_line = "";
2046 }
2047
2048 if ($stop_test_after > 0 && !$booted && !$bug) {
2049 if (time - $monitor_start > $stop_test_after) {
2050 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2051 $done = 1;
2052 }
2053 }
2054 }
2055
2056 my $end_time = time;
2057 $reboot_time = $end_time - $start_time;
2058
2059 close(DMESG);
2060
2061 if ($bug) {
2062 return 0 if ($in_bisect);
2063 fail "failed - got a bug report" and return 0;
2064 }
2065
2066 if (!$booted) {
2067 return 0 if ($in_bisect);
2068 fail "failed - never got a boot prompt." and return 0;
2069 }
2070
2071 if ($bug_ignored) {
2072 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2073 }
2074
2075 return 1;
2076}
2077
2078sub eval_kernel_version {
2079 my ($option) = @_;
2080
2081 $option =~ s/\$KERNEL_VERSION/$version/g;
2082
2083 return $option;
2084}
2085
2086sub do_post_install {
2087
2088 return if (!defined($post_install));
2089
2090 my $cp_post_install = eval_kernel_version $post_install;
2091 run_command "$cp_post_install" or
2092 dodie "Failed to run post install";
2093}
2094
2095# Sometimes the reboot fails, and will hang. We try to ssh to the box
2096# and if we fail, we force another reboot, that should powercycle it.
2097sub test_booted {
2098 if (!run_ssh "echo testing connection") {
2099 reboot $sleep_time;
2100 }
2101}
2102
2103sub install {
2104
2105 return if ($no_install);
2106
2107 my $start_time = time;
2108
2109 if (defined($pre_install)) {
2110 my $cp_pre_install = eval_kernel_version $pre_install;
2111 run_command "$cp_pre_install" or
2112 dodie "Failed to run pre install";
2113 }
2114
2115 my $cp_target = eval_kernel_version $target_image;
2116
2117 test_booted;
2118
2119 run_scp_install "$outputdir/$build_target", "$cp_target" or
2120 dodie "failed to copy image";
2121
2122 my $install_mods = 0;
2123
2124 # should we process modules?
2125 $install_mods = 0;
2126 open(IN, "$output_config") or dodie("Can't read config file");
2127 while (<IN>) {
2128 if (/CONFIG_MODULES(=y)?/) {
2129 if (defined($1)) {
2130 $install_mods = 1;
2131 last;
2132 }
2133 }
2134 }
2135 close(IN);
2136
2137 if (!$install_mods) {
2138 do_post_install;
2139 doprint "No modules needed\n";
2140 my $end_time = time;
2141 $install_time = $end_time - $start_time;
2142 return;
2143 }
2144
2145 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2146 dodie "Failed to install modules";
2147
2148 my $modlib = "/lib/modules/$version";
2149 my $modtar = "ktest-mods.tar.bz2";
2150
2151 run_ssh "rm -rf $modlib" or
2152 dodie "failed to remove old mods: $modlib";
2153
2154 # would be nice if scp -r did not follow symbolic links
2155 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2156 dodie "making tarball";
2157
2158 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2159 dodie "failed to copy modules";
2160
2161 unlink "$tmpdir/$modtar";
2162
2163 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2164 dodie "failed to tar modules";
2165
2166 run_ssh "rm -f /tmp/$modtar";
2167
2168 do_post_install;
2169
2170 my $end_time = time;
2171 $install_time = $end_time - $start_time;
2172}
2173
2174sub get_version {
2175 # get the release name
2176 return if ($have_version);
2177 doprint "$make kernelrelease ... ";
2178 $version = `$make -s kernelrelease | tail -1`;
2179 chomp($version);
2180 doprint "$version\n";
2181 $have_version = 1;
2182}
2183
2184sub start_monitor_and_install {
2185 # Make sure the stable kernel has finished booting
2186
2187 # Install bisects, don't need console
2188 if (defined $console) {
2189 start_monitor;
2190 wait_for_monitor 5;
2191 end_monitor;
2192 }
2193
2194 get_grub_index;
2195 get_version;
2196 install;
2197
2198 start_monitor if (defined $console);
2199 return monitor;
2200}
2201
2202my $check_build_re = ".*:.*(warning|error|Error):.*";
2203my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2204
2205sub process_warning_line {
2206 my ($line) = @_;
2207
2208 chomp $line;
2209
2210 # for distcc heterogeneous systems, some compilers
2211 # do things differently causing warning lines
2212 # to be slightly different. This makes an attempt
2213 # to fixe those issues.
2214
2215 # chop off the index into the line
2216 # using distcc, some compilers give different indexes
2217 # depending on white space
2218 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2219
2220 # Some compilers use UTF-8 extended for quotes and some don't.
2221 $line =~ s/$utf8_quote/'/g;
2222
2223 return $line;
2224}
2225
2226# Read buildlog and check against warnings file for any
2227# new warnings.
2228#
2229# Returns 1 if OK
2230# 0 otherwise
2231sub check_buildlog {
2232 return 1 if (!defined $warnings_file);
2233
2234 my %warnings_list;
2235
2236 # Failed builds should not reboot the target
2237 my $save_no_reboot = $no_reboot;
2238 $no_reboot = 1;
2239
2240 if (-f $warnings_file) {
2241 open(IN, $warnings_file) or
2242 dodie "Error opening $warnings_file";
2243
2244 while (<IN>) {
2245 if (/$check_build_re/) {
2246 my $warning = process_warning_line $_;
2247
2248 $warnings_list{$warning} = 1;
2249 }
2250 }
2251 close(IN);
2252 }
2253
2254 # If warnings file didn't exist, and WARNINGS_FILE exist,
2255 # then we fail on any warning!
2256
2257 open(IN, $buildlog) or dodie "Can't open $buildlog";
2258 while (<IN>) {
2259 if (/$check_build_re/) {
2260 my $warning = process_warning_line $_;
2261
2262 if (!defined $warnings_list{$warning}) {
2263 fail "New warning found (not in $warnings_file)\n$_\n";
2264 $no_reboot = $save_no_reboot;
2265 return 0;
2266 }
2267 }
2268 }
2269 $no_reboot = $save_no_reboot;
2270 close(IN);
2271}
2272
2273sub check_patch_buildlog {
2274 my ($patch) = @_;
2275
2276 my @files = `git show $patch | diffstat -l`;
2277
2278 foreach my $file (@files) {
2279 chomp $file;
2280 }
2281
2282 open(IN, "git show $patch |") or
2283 dodie "failed to show $patch";
2284 while (<IN>) {
2285 if (m,^--- a/(.*),) {
2286 chomp $1;
2287 $files[$#files] = $1;
2288 }
2289 }
2290 close(IN);
2291
2292 open(IN, $buildlog) or dodie "Can't open $buildlog";
2293 while (<IN>) {
2294 if (/^\s*(.*?):.*(warning|error)/) {
2295 my $err = $1;
2296 foreach my $file (@files) {
2297 my $fullpath = "$builddir/$file";
2298 if ($file eq $err || $fullpath eq $err) {
2299 fail "$file built with warnings" and return 0;
2300 }
2301 }
2302 }
2303 }
2304 close(IN);
2305
2306 return 1;
2307}
2308
2309sub apply_min_config {
2310 my $outconfig = "$output_config.new";
2311
2312 # Read the config file and remove anything that
2313 # is in the force_config hash (from minconfig and others)
2314 # then add the force config back.
2315
2316 doprint "Applying minimum configurations into $output_config.new\n";
2317
2318 open (OUT, ">$outconfig") or
2319 dodie "Can't create $outconfig";
2320
2321 if (-f $output_config) {
2322 open (IN, $output_config) or
2323 dodie "Failed to open $output_config";
2324 while (<IN>) {
2325 if (/^(# )?(CONFIG_[^\s=]*)/) {
2326 next if (defined($force_config{$2}));
2327 }
2328 print OUT;
2329 }
2330 close IN;
2331 }
2332 foreach my $config (keys %force_config) {
2333 print OUT "$force_config{$config}\n";
2334 }
2335 close OUT;
2336
2337 run_command "mv $outconfig $output_config";
2338}
2339
2340sub make_oldconfig {
2341
2342 my @force_list = keys %force_config;
2343
2344 if ($#force_list >= 0) {
2345 apply_min_config;
2346 }
2347
2348 if (!run_command "$make olddefconfig") {
2349 # Perhaps olddefconfig doesn't exist in this version of the kernel
2350 # try oldnoconfig
2351 doprint "olddefconfig failed, trying make oldnoconfig\n";
2352 if (!run_command "$make oldnoconfig") {
2353 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2354 # try a yes '' | oldconfig
2355 run_command "yes '' | $make oldconfig" or
2356 dodie "failed make config oldconfig";
2357 }
2358 }
2359}
2360
2361# read a config file and use this to force new configs.
2362sub load_force_config {
2363 my ($config) = @_;
2364
2365 doprint "Loading force configs from $config\n";
2366 open(IN, $config) or
2367 dodie "failed to read $config";
2368 while (<IN>) {
2369 chomp;
2370 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2371 $force_config{$1} = $_;
2372 } elsif (/^# (CONFIG_\S*) is not set/) {
2373 $force_config{$1} = $_;
2374 }
2375 }
2376 close IN;
2377}
2378
2379sub build {
2380 my ($type) = @_;
2381
2382 unlink $buildlog;
2383
2384 my $start_time = time;
2385
2386 # Failed builds should not reboot the target
2387 my $save_no_reboot = $no_reboot;
2388 $no_reboot = 1;
2389
2390 # Calculate a new version from here.
2391 $have_version = 0;
2392
2393 if (defined($pre_build)) {
2394 my $ret = run_command $pre_build;
2395 if (!$ret && defined($pre_build_die) &&
2396 $pre_build_die) {
2397 dodie "failed to pre_build\n";
2398 }
2399 }
2400
2401 if ($type =~ /^useconfig:(.*)/) {
2402 run_command "cp $1 $output_config" or
2403 dodie "could not copy $1 to .config";
2404
2405 $type = "oldconfig";
2406 }
2407
2408 # old config can ask questions
2409 if ($type eq "oldconfig") {
2410 $type = "olddefconfig";
2411
2412 # allow for empty configs
2413 run_command "touch $output_config";
2414
2415 if (!$noclean) {
2416 run_command "mv $output_config $outputdir/config_temp" or
2417 dodie "moving .config";
2418
2419 run_command "$make mrproper" or dodie "make mrproper";
2420
2421 run_command "mv $outputdir/config_temp $output_config" or
2422 dodie "moving config_temp";
2423 }
2424
2425 } elsif (!$noclean) {
2426 unlink "$output_config";
2427 run_command "$make mrproper" or
2428 dodie "make mrproper";
2429 }
2430
2431 # add something to distinguish this build
2432 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2433 print OUT "$localversion\n";
2434 close(OUT);
2435
2436 if (defined($minconfig)) {
2437 load_force_config($minconfig);
2438 }
2439
2440 if ($type ne "olddefconfig") {
2441 run_command "$make $type" or
2442 dodie "failed make config";
2443 }
2444 # Run old config regardless, to enforce min configurations
2445 make_oldconfig;
2446
2447 my $build_ret = run_command "$make $build_options", $buildlog;
2448
2449 if (defined($post_build)) {
2450 # Because a post build may change the kernel version
2451 # do it now.
2452 get_version;
2453 my $ret = run_command $post_build;
2454 if (!$ret && defined($post_build_die) &&
2455 $post_build_die) {
2456 dodie "failed to post_build\n";
2457 }
2458 }
2459
2460 if (!$build_ret) {
2461 # bisect may need this to pass
2462 if ($in_bisect) {
2463 $no_reboot = $save_no_reboot;
2464 return 0;
2465 }
2466 fail "failed build" and return 0;
2467 }
2468
2469 $no_reboot = $save_no_reboot;
2470
2471 my $end_time = time;
2472 $build_time = $end_time - $start_time;
2473
2474 return 1;
2475}
2476
2477sub halt {
2478 if (!run_ssh "halt" or defined($power_off)) {
2479 if (defined($poweroff_after_halt)) {
2480 sleep $poweroff_after_halt;
2481 run_command "$power_off";
2482 }
2483 } else {
2484 # nope? the zap it!
2485 run_command "$power_off";
2486 }
2487}
2488
2489sub success {
2490 my ($i) = @_;
2491
2492 if (defined($post_test)) {
2493 run_command $post_test;
2494 }
2495
2496 $successes++;
2497
2498 my $name = "";
2499
2500 if (defined($test_name)) {
2501 $name = " ($test_name)";
2502 }
2503
2504 print_times;
2505
2506 doprint "\n\n*******************************************\n";
2507 doprint "*******************************************\n";
2508 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2509 doprint "*******************************************\n";
2510 doprint "*******************************************\n";
2511
2512 if (defined($store_successes)) {
2513 save_logs "success", $store_successes;
2514 }
2515
2516 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2517 doprint "Reboot and wait $sleep_time seconds\n";
2518 reboot_to_good $sleep_time;
2519 }
2520}
2521
2522sub answer_bisect {
2523 for (;;) {
2524 doprint "Pass, fail, or skip? [p/f/s]";
2525 my $ans = <STDIN>;
2526 chomp $ans;
2527 if ($ans eq "p" || $ans eq "P") {
2528 return 1;
2529 } elsif ($ans eq "f" || $ans eq "F") {
2530 return 0;
2531 } elsif ($ans eq "s" || $ans eq "S") {
2532 return -1;
2533 } else {
2534 print "Please answer 'p', 'f', or 's'\n";
2535 }
2536 }
2537}
2538
2539sub child_run_test {
2540 my $failed = 0;
2541
2542 # child should have no power
2543 $reboot_on_error = 0;
2544 $poweroff_on_error = 0;
2545 $die_on_failure = 1;
2546
2547 run_command $run_test, $testlog or $failed = 1;
2548
2549 exit $failed;
2550}
2551
2552my $child_done;
2553
2554sub child_finished {
2555 $child_done = 1;
2556}
2557
2558sub do_run_test {
2559 my $child_pid;
2560 my $child_exit;
2561 my $line;
2562 my $full_line;
2563 my $bug = 0;
2564 my $bug_ignored = 0;
2565
2566 my $start_time = time;
2567
2568 wait_for_monitor 1;
2569
2570 doprint "run test $run_test\n";
2571
2572 $child_done = 0;
2573
2574 $SIG{CHLD} = qw(child_finished);
2575
2576 $child_pid = fork;
2577
2578 child_run_test if (!$child_pid);
2579
2580 $full_line = "";
2581
2582 do {
2583 $line = wait_for_input($monitor_fp, 1);
2584 if (defined($line)) {
2585
2586 # we are not guaranteed to get a full line
2587 $full_line .= $line;
2588 doprint $line;
2589
2590 if ($full_line =~ /call trace:/i) {
2591 if ($ignore_errors) {
2592 $bug_ignored = 1;
2593 } else {
2594 $bug = 1;
2595 }
2596 }
2597
2598 if ($full_line =~ /Kernel panic -/) {
2599 $bug = 1;
2600 }
2601
2602 if ($line =~ /\n/) {
2603 $full_line = "";
2604 }
2605 }
2606 } while (!$child_done && !$bug);
2607
2608 if (!$bug && $bug_ignored) {
2609 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2610 }
2611
2612 if ($bug) {
2613 my $failure_start = time;
2614 my $now;
2615 do {
2616 $line = wait_for_input($monitor_fp, 1);
2617 if (defined($line)) {
2618 doprint $line;
2619 }
2620 $now = time;
2621 if ($now - $failure_start >= $stop_after_failure) {
2622 last;
2623 }
2624 } while (defined($line));
2625
2626 doprint "Detected kernel crash!\n";
2627 # kill the child with extreme prejudice
2628 kill 9, $child_pid;
2629 }
2630
2631 waitpid $child_pid, 0;
2632 $child_exit = $? >> 8;
2633
2634 my $end_time = time;
2635 $test_time = $end_time - $start_time;
2636
2637 if (!$bug && $in_bisect) {
2638 if (defined($bisect_ret_good)) {
2639 if ($child_exit == $bisect_ret_good) {
2640 return 1;
2641 }
2642 }
2643 if (defined($bisect_ret_skip)) {
2644 if ($child_exit == $bisect_ret_skip) {
2645 return -1;
2646 }
2647 }
2648 if (defined($bisect_ret_abort)) {
2649 if ($child_exit == $bisect_ret_abort) {
2650 fail "test abort" and return -2;
2651 }
2652 }
2653 if (defined($bisect_ret_bad)) {
2654 if ($child_exit == $bisect_ret_skip) {
2655 return 0;
2656 }
2657 }
2658 if (defined($bisect_ret_default)) {
2659 if ($bisect_ret_default eq "good") {
2660 return 1;
2661 } elsif ($bisect_ret_default eq "bad") {
2662 return 0;
2663 } elsif ($bisect_ret_default eq "skip") {
2664 return -1;
2665 } elsif ($bisect_ret_default eq "abort") {
2666 return -2;
2667 } else {
2668 fail "unknown default action: $bisect_ret_default"
2669 and return -2;
2670 }
2671 }
2672 }
2673
2674 if ($bug || $child_exit) {
2675 return 0 if $in_bisect;
2676 fail "test failed" and return 0;
2677 }
2678 return 1;
2679}
2680
2681sub run_git_bisect {
2682 my ($command) = @_;
2683
2684 doprint "$command ... ";
2685
2686 my $output = `$command 2>&1`;
2687 my $ret = $?;
2688
2689 logit $output;
2690
2691 if ($ret) {
2692 doprint "FAILED\n";
2693 dodie "Failed to git bisect";
2694 }
2695
2696 doprint "SUCCESS\n";
2697 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2698 doprint "$1 [$2]\n";
2699 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2700 $bisect_bad_commit = $1;
2701 doprint "Found bad commit... $1\n";
2702 return 0;
2703 } else {
2704 # we already logged it, just print it now.
2705 print $output;
2706 }
2707
2708 return 1;
2709}
2710
2711sub bisect_reboot {
2712 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2713 reboot_to_good $bisect_sleep_time;
2714}
2715
2716# returns 1 on success, 0 on failure, -1 on skip
2717sub run_bisect_test {
2718 my ($type, $buildtype) = @_;
2719
2720 my $failed = 0;
2721 my $result;
2722 my $output;
2723 my $ret;
2724
2725 $in_bisect = 1;
2726
2727 build $buildtype or $failed = 1;
2728
2729 if ($type ne "build") {
2730 if ($failed && $bisect_skip) {
2731 $in_bisect = 0;
2732 return -1;
2733 }
2734 dodie "Failed on build" if $failed;
2735
2736 # Now boot the box
2737 start_monitor_and_install or $failed = 1;
2738
2739 if ($type ne "boot") {
2740 if ($failed && $bisect_skip) {
2741 end_monitor;
2742 bisect_reboot;
2743 $in_bisect = 0;
2744 return -1;
2745 }
2746 dodie "Failed on boot" if $failed;
2747
2748 do_run_test or $failed = 1;
2749 }
2750 end_monitor;
2751 }
2752
2753 if ($failed) {
2754 $result = 0;
2755 } else {
2756 $result = 1;
2757 }
2758
2759 # reboot the box to a kernel we can ssh to
2760 if ($type ne "build") {
2761 bisect_reboot;
2762 }
2763 $in_bisect = 0;
2764
2765 return $result;
2766}
2767
2768sub run_bisect {
2769 my ($type) = @_;
2770 my $buildtype = "oldconfig";
2771
2772 # We should have a minconfig to use?
2773 if (defined($minconfig)) {
2774 $buildtype = "useconfig:$minconfig";
2775 }
2776
2777 # If the user sets bisect_tries to less than 1, then no tries
2778 # is a success.
2779 my $ret = 1;
2780
2781 # Still let the user manually decide that though.
2782 if ($bisect_tries < 1 && $bisect_manual) {
2783 $ret = answer_bisect;
2784 }
2785
2786 for (my $i = 0; $i < $bisect_tries; $i++) {
2787 if ($bisect_tries > 1) {
2788 my $t = $i + 1;
2789 doprint("Running bisect trial $t of $bisect_tries:\n");
2790 }
2791 $ret = run_bisect_test $type, $buildtype;
2792
2793 if ($bisect_manual) {
2794 $ret = answer_bisect;
2795 }
2796
2797 last if (!$ret);
2798 }
2799
2800 # Are we looking for where it worked, not failed?
2801 if ($reverse_bisect && $ret >= 0) {
2802 $ret = !$ret;
2803 }
2804
2805 if ($ret > 0) {
2806 return "good";
2807 } elsif ($ret == 0) {
2808 return "bad";
2809 } elsif ($bisect_skip) {
2810 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2811 return "skip";
2812 }
2813}
2814
2815sub update_bisect_replay {
2816 my $tmp_log = "$tmpdir/ktest_bisect_log";
2817 run_command "git bisect log > $tmp_log" or
2818 die "can't create bisect log";
2819 return $tmp_log;
2820}
2821
2822sub bisect {
2823 my ($i) = @_;
2824
2825 my $result;
2826
2827 die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2828 die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2829 die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2830
2831 my $good = $bisect_good;
2832 my $bad = $bisect_bad;
2833 my $type = $bisect_type;
2834 my $start = $bisect_start;
2835 my $replay = $bisect_replay;
2836 my $start_files = $bisect_files;
2837
2838 if (defined($start_files)) {
2839 $start_files = " -- " . $start_files;
2840 } else {
2841 $start_files = "";
2842 }
2843
2844 # convert to true sha1's
2845 $good = get_sha1($good);
2846 $bad = get_sha1($bad);
2847
2848 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2849 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2850 $reverse_bisect = 1;
2851 } else {
2852 $reverse_bisect = 0;
2853 }
2854
2855 # Can't have a test without having a test to run
2856 if ($type eq "test" && !defined($run_test)) {
2857 $type = "boot";
2858 }
2859
2860 # Check if a bisect was running
2861 my $bisect_start_file = "$builddir/.git/BISECT_START";
2862
2863 my $check = $bisect_check;
2864 my $do_check = defined($check) && $check ne "0";
2865
2866 if ( -f $bisect_start_file ) {
2867 print "Bisect in progress found\n";
2868 if ($do_check) {
2869 print " If you say yes, then no checks of good or bad will be done\n";
2870 }
2871 if (defined($replay)) {
2872 print "** BISECT_REPLAY is defined in config file **";
2873 print " Ignore config option and perform new git bisect log?\n";
2874 if (read_ync " (yes, no, or cancel) ") {
2875 $replay = update_bisect_replay;
2876 $do_check = 0;
2877 }
2878 } elsif (read_yn "read git log and continue?") {
2879 $replay = update_bisect_replay;
2880 $do_check = 0;
2881 }
2882 }
2883
2884 if ($do_check) {
2885
2886 # get current HEAD
2887 my $head = get_sha1("HEAD");
2888
2889 if ($check ne "good") {
2890 doprint "TESTING BISECT BAD [$bad]\n";
2891 run_command "git checkout $bad" or
2892 die "Failed to checkout $bad";
2893
2894 $result = run_bisect $type;
2895
2896 if ($result ne "bad") {
2897 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2898 }
2899 }
2900
2901 if ($check ne "bad") {
2902 doprint "TESTING BISECT GOOD [$good]\n";
2903 run_command "git checkout $good" or
2904 die "Failed to checkout $good";
2905
2906 $result = run_bisect $type;
2907
2908 if ($result ne "good") {
2909 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2910 }
2911 }
2912
2913 # checkout where we started
2914 run_command "git checkout $head" or
2915 die "Failed to checkout $head";
2916 }
2917
2918 run_command "git bisect start$start_files" or
2919 dodie "could not start bisect";
2920
2921 if (defined($replay)) {
2922 run_command "git bisect replay $replay" or
2923 dodie "failed to run replay";
2924 } else {
2925
2926 run_command "git bisect good $good" or
2927 dodie "could not set bisect good to $good";
2928
2929 run_git_bisect "git bisect bad $bad" or
2930 dodie "could not set bisect bad to $bad";
2931
2932 }
2933
2934 if (defined($start)) {
2935 run_command "git checkout $start" or
2936 dodie "failed to checkout $start";
2937 }
2938
2939 my $test;
2940 do {
2941 $result = run_bisect $type;
2942 $test = run_git_bisect "git bisect $result";
2943 print_times;
2944 } while ($test);
2945
2946 run_command "git bisect log" or
2947 dodie "could not capture git bisect log";
2948
2949 run_command "git bisect reset" or
2950 dodie "could not reset git bisect";
2951
2952 doprint "Bad commit was [$bisect_bad_commit]\n";
2953
2954 success $i;
2955}
2956
2957# config_ignore holds the configs that were set (or unset) for
2958# a good config and we will ignore these configs for the rest
2959# of a config bisect. These configs stay as they were.
2960my %config_ignore;
2961
2962# config_set holds what all configs were set as.
2963my %config_set;
2964
2965# config_off holds the set of configs that the bad config had disabled.
2966# We need to record them and set them in the .config when running
2967# olddefconfig, because olddefconfig keeps the defaults.
2968my %config_off;
2969
2970# config_off_tmp holds a set of configs to turn off for now
2971my @config_off_tmp;
2972
2973# config_list is the set of configs that are being tested
2974my %config_list;
2975my %null_config;
2976
2977my %dependency;
2978
2979sub assign_configs {
2980 my ($hash, $config) = @_;
2981
2982 doprint "Reading configs from $config\n";
2983
2984 open (IN, $config)
2985 or dodie "Failed to read $config";
2986
2987 while (<IN>) {
2988 chomp;
2989 if (/^((CONFIG\S*)=.*)/) {
2990 ${$hash}{$2} = $1;
2991 } elsif (/^(# (CONFIG\S*) is not set)/) {
2992 ${$hash}{$2} = $1;
2993 }
2994 }
2995
2996 close(IN);
2997}
2998
2999sub process_config_ignore {
3000 my ($config) = @_;
3001
3002 assign_configs \%config_ignore, $config;
3003}
3004
3005sub get_dependencies {
3006 my ($config) = @_;
3007
3008 my $arr = $dependency{$config};
3009 if (!defined($arr)) {
3010 return ();
3011 }
3012
3013 my @deps = @{$arr};
3014
3015 foreach my $dep (@{$arr}) {
3016 print "ADD DEP $dep\n";
3017 @deps = (@deps, get_dependencies $dep);
3018 }
3019
3020 return @deps;
3021}
3022
3023sub save_config {
3024 my ($pc, $file) = @_;
3025
3026 my %configs = %{$pc};
3027
3028 doprint "Saving configs into $file\n";
3029
3030 open(OUT, ">$file") or dodie "Can not write to $file";
3031
3032 foreach my $config (keys %configs) {
3033 print OUT "$configs{$config}\n";
3034 }
3035 close(OUT);
3036}
3037
3038sub create_config {
3039 my ($name, $pc) = @_;
3040
3041 doprint "Creating old config from $name configs\n";
3042
3043 save_config $pc, $output_config;
3044
3045 make_oldconfig;
3046}
3047
3048# compare two config hashes, and return configs with different vals.
3049# It returns B's config values, but you can use A to see what A was.
3050sub diff_config_vals {
3051 my ($pa, $pb) = @_;
3052
3053 # crappy Perl way to pass in hashes.
3054 my %a = %{$pa};
3055 my %b = %{$pb};
3056
3057 my %ret;
3058
3059 foreach my $item (keys %a) {
3060 if (defined($b{$item}) && $b{$item} ne $a{$item}) {
3061 $ret{$item} = $b{$item};
3062 }
3063 }
3064
3065 return %ret;
3066}
3067
3068# compare two config hashes and return the configs in B but not A
3069sub diff_configs {
3070 my ($pa, $pb) = @_;
3071
3072 my %ret;
3073
3074 # crappy Perl way to pass in hashes.
3075 my %a = %{$pa};
3076 my %b = %{$pb};
3077
3078 foreach my $item (keys %b) {
3079 if (!defined($a{$item})) {
3080 $ret{$item} = $b{$item};
3081 }
3082 }
3083
3084 return %ret;
3085}
3086
3087# return if two configs are equal or not
3088# 0 is equal +1 b has something a does not
3089# +1 if a and b have a different item.
3090# -1 if a has something b does not
3091sub compare_configs {
3092 my ($pa, $pb) = @_;
3093
3094 my %ret;
3095
3096 # crappy Perl way to pass in hashes.
3097 my %a = %{$pa};
3098 my %b = %{$pb};
3099
3100 foreach my $item (keys %b) {
3101 if (!defined($a{$item})) {
3102 return 1;
3103 }
3104 if ($a{$item} ne $b{$item}) {
3105 return 1;
3106 }
3107 }
3108
3109 foreach my $item (keys %a) {
3110 if (!defined($b{$item})) {
3111 return -1;
3112 }
3113 }
3114
3115 return 0;
3116}
3117
3118sub run_config_bisect_test {
3119 my ($type) = @_;
3120
3121 my $ret = run_bisect_test $type, "oldconfig";
3122
3123 if ($bisect_manual) {
3124 $ret = answer_bisect;
3125 }
3126
3127 return $ret;
3128}
3129
3130sub process_failed {
3131 my ($config) = @_;
3132
3133 doprint "\n\n***************************************\n";
3134 doprint "Found bad config: $config\n";
3135 doprint "***************************************\n\n";
3136}
3137
3138# used for config bisecting
3139my $good_config;
3140my $bad_config;
3141
3142sub process_new_config {
3143 my ($tc, $nc, $gc, $bc) = @_;
3144
3145 my %tmp_config = %{$tc};
3146 my %good_configs = %{$gc};
3147 my %bad_configs = %{$bc};
3148
3149 my %new_configs;
3150
3151 my $runtest = 1;
3152 my $ret;
3153
3154 create_config "tmp_configs", \%tmp_config;
3155 assign_configs \%new_configs, $output_config;
3156
3157 $ret = compare_configs \%new_configs, \%bad_configs;
3158 if (!$ret) {
3159 doprint "New config equals bad config, try next test\n";
3160 $runtest = 0;
3161 }
3162
3163 if ($runtest) {
3164 $ret = compare_configs \%new_configs, \%good_configs;
3165 if (!$ret) {
3166 doprint "New config equals good config, try next test\n";
3167 $runtest = 0;
3168 }
3169 }
3170
3171 %{$nc} = %new_configs;
3172
3173 return $runtest;
3174}
3175
3176sub run_config_bisect {
3177 my ($pgood, $pbad) = @_;
3178
3179 my $type = $config_bisect_type;
3180
3181 my %good_configs = %{$pgood};
3182 my %bad_configs = %{$pbad};
3183
3184 my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
3185 my %b_configs = diff_configs \%good_configs, \%bad_configs;
3186 my %g_configs = diff_configs \%bad_configs, \%good_configs;
3187
3188 my @diff_arr = keys %diff_configs;
3189 my $len_diff = $#diff_arr + 1;
3190
3191 my @b_arr = keys %b_configs;
3192 my $len_b = $#b_arr + 1;
3193
3194 my @g_arr = keys %g_configs;
3195 my $len_g = $#g_arr + 1;
3196
3197 my $runtest = 1;
3198 my %new_configs;
3199 my $ret;
3200
3201 # First, lets get it down to a single subset.
3202 # Is the problem with a difference in values?
3203 # Is the problem with a missing config?
3204 # Is the problem with a config that breaks things?
3205
3206 # Enable all of one set and see if we get a new bad
3207 # or good config.
3208
3209 # first set the good config to the bad values.
3210
3211 doprint "d=$len_diff g=$len_g b=$len_b\n";
3212
3213 # first lets enable things in bad config that are enabled in good config
3214
3215 if ($len_diff > 0) {
3216 if ($len_b > 0 || $len_g > 0) {
3217 my %tmp_config = %bad_configs;
3218
3219 doprint "Set tmp config to be bad config with good config values\n";
3220 foreach my $item (@diff_arr) {
3221 $tmp_config{$item} = $good_configs{$item};
3222 }
3223
3224 $runtest = process_new_config \%tmp_config, \%new_configs,
3225 \%good_configs, \%bad_configs;
3226 }
3227 }
3228
3229 if (!$runtest && $len_diff > 0) {
3230
3231 if ($len_diff == 1) {
3232 process_failed $diff_arr[0];
3233 return 1;
3234 }
3235 my %tmp_config = %bad_configs;
3236
3237 my $half = int($#diff_arr / 2);
3238 my @tophalf = @diff_arr[0 .. $half];
3239
3240 doprint "Settings bisect with top half:\n";
3241 doprint "Set tmp config to be bad config with some good config values\n";
3242 foreach my $item (@tophalf) {
3243 $tmp_config{$item} = $good_configs{$item};
3244 }
3245
3246 $runtest = process_new_config \%tmp_config, \%new_configs,
3247 \%good_configs, \%bad_configs;
3248
3249 if (!$runtest) {
3250 my %tmp_config = %bad_configs;
3251
3252 doprint "Try bottom half\n";
3253
3254 my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
3255
3256 foreach my $item (@bottomhalf) {
3257 $tmp_config{$item} = $good_configs{$item};
3258 }
3259
3260 $runtest = process_new_config \%tmp_config, \%new_configs,
3261 \%good_configs, \%bad_configs;
3262 }
3263 }
3264
3265 if ($runtest) {
3266 $ret = run_config_bisect_test $type;
3267 if ($ret) {
3268 doprint "NEW GOOD CONFIG\n";
3269 %good_configs = %new_configs;
3270 run_command "mv $good_config ${good_config}.last";
3271 save_config \%good_configs, $good_config;
3272 %{$pgood} = %good_configs;
3273 } else {
3274 doprint "NEW BAD CONFIG\n";
3275 %bad_configs = %new_configs;
3276 run_command "mv $bad_config ${bad_config}.last";
3277 save_config \%bad_configs, $bad_config;
3278 %{$pbad} = %bad_configs;
3279 }
3280 return 0;
3281 }
3282
3283 fail "Hmm, need to do a mix match?\n";
3284 return -1;
3285}
3286
3287sub config_bisect {
3288 my ($i) = @_;
3289
3290 my $type = $config_bisect_type;
3291 my $ret;
3292
3293 $bad_config = $config_bisect;
3294
3295 if (defined($config_bisect_good)) {
3296 $good_config = $config_bisect_good;
3297 } elsif (defined($minconfig)) {
3298 $good_config = $minconfig;
3299 } else {
3300 doprint "No config specified, checking if defconfig works";
3301 $ret = run_bisect_test $type, "defconfig";
3302 if (!$ret) {
3303 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3304 return 1;
3305 }
3306 $good_config = $output_config;
3307 }
3308
3309 # we don't want min configs to cause issues here.
3310 doprint "Disabling 'MIN_CONFIG' for this test\n";
3311 undef $minconfig;
3312
3313 my %good_configs;
3314 my %bad_configs;
3315 my %tmp_configs;
3316
3317 doprint "Run good configs through make oldconfig\n";
3318 assign_configs \%tmp_configs, $good_config;
3319 create_config "$good_config", \%tmp_configs;
3320 assign_configs \%good_configs, $output_config;
3321
3322 doprint "Run bad configs through make oldconfig\n";
3323 assign_configs \%tmp_configs, $bad_config;
3324 create_config "$bad_config", \%tmp_configs;
3325 assign_configs \%bad_configs, $output_config;
3326
3327 $good_config = "$tmpdir/good_config";
3328 $bad_config = "$tmpdir/bad_config";
3329
3330 save_config \%good_configs, $good_config;
3331 save_config \%bad_configs, $bad_config;
3332
3333
3334 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3335 if ($config_bisect_check ne "good") {
3336 doprint "Testing bad config\n";
3337
3338 $ret = run_bisect_test $type, "useconfig:$bad_config";
3339 if ($ret) {
3340 fail "Bad config succeeded when expected to fail!";
3341 return 0;
3342 }
3343 }
3344 if ($config_bisect_check ne "bad") {
3345 doprint "Testing good config\n";
3346
3347 $ret = run_bisect_test $type, "useconfig:$good_config";
3348 if (!$ret) {
3349 fail "Good config failed when expected to succeed!";
3350 return 0;
3351 }
3352 }
3353 }
3354
3355 do {
3356 $ret = run_config_bisect \%good_configs, \%bad_configs;
3357 print_times;
3358 } while (!$ret);
3359
3360 return $ret if ($ret < 0);
3361
3362 success $i;
3363}
3364
3365sub patchcheck_reboot {
3366 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3367 reboot_to_good $patchcheck_sleep_time;
3368}
3369
3370sub patchcheck {
3371 my ($i) = @_;
3372
3373 die "PATCHCHECK_START[$i] not defined\n"
3374 if (!defined($patchcheck_start));
3375 die "PATCHCHECK_TYPE[$i] not defined\n"
3376 if (!defined($patchcheck_type));
3377
3378 my $start = $patchcheck_start;
3379
3380 my $cherry = $patchcheck_cherry;
3381 if (!defined($cherry)) {
3382 $cherry = 0;
3383 }
3384
3385 my $end = "HEAD";
3386 if (defined($patchcheck_end)) {
3387 $end = $patchcheck_end;
3388 } elsif ($cherry) {
3389 die "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3390 }
3391
3392 # Get the true sha1's since we can use things like HEAD~3
3393 $start = get_sha1($start);
3394 $end = get_sha1($end);
3395
3396 my $type = $patchcheck_type;
3397
3398 # Can't have a test without having a test to run
3399 if ($type eq "test" && !defined($run_test)) {
3400 $type = "boot";
3401 }
3402
3403 if ($cherry) {
3404 open (IN, "git cherry -v $start $end|") or
3405 dodie "could not get git list";
3406 } else {
3407 open (IN, "git log --pretty=oneline $end|") or
3408 dodie "could not get git list";
3409 }
3410
3411 my @list;
3412
3413 while (<IN>) {
3414 chomp;
3415 # git cherry adds a '+' we want to remove
3416 s/^\+ //;
3417 $list[$#list+1] = $_;
3418 last if (/^$start/);
3419 }
3420 close(IN);
3421
3422 if (!$cherry) {
3423 if ($list[$#list] !~ /^$start/) {
3424 fail "SHA1 $start not found";
3425 }
3426
3427 # go backwards in the list
3428 @list = reverse @list;
3429 }
3430
3431 doprint("Going to test the following commits:\n");
3432 foreach my $l (@list) {
3433 doprint "$l\n";
3434 }
3435
3436 my $save_clean = $noclean;
3437 my %ignored_warnings;
3438
3439 if (defined($ignore_warnings)) {
3440 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3441 $ignored_warnings{$sha1} = 1;
3442 }
3443 }
3444
3445 $in_patchcheck = 1;
3446 foreach my $item (@list) {
3447 my $sha1 = $item;
3448 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3449
3450 doprint "\nProcessing commit \"$item\"\n\n";
3451
3452 run_command "git checkout $sha1" or
3453 die "Failed to checkout $sha1";
3454
3455 # only clean on the first and last patch
3456 if ($item eq $list[0] ||
3457 $item eq $list[$#list]) {
3458 $noclean = $save_clean;
3459 } else {
3460 $noclean = 1;
3461 }
3462
3463 if (defined($minconfig)) {
3464 build "useconfig:$minconfig" or return 0;
3465 } else {
3466 # ?? no config to use?
3467 build "oldconfig" or return 0;
3468 }
3469
3470 # No need to do per patch checking if warnings file exists
3471 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3472 check_patch_buildlog $sha1 or return 0;
3473 }
3474
3475 check_buildlog or return 0;
3476
3477 next if ($type eq "build");
3478
3479 my $failed = 0;
3480
3481 start_monitor_and_install or $failed = 1;
3482
3483 if (!$failed && $type ne "boot"){
3484 do_run_test or $failed = 1;
3485 }
3486 end_monitor;
3487 if ($failed) {
3488 print_times;
3489 return 0;
3490 }
3491 patchcheck_reboot;
3492 print_times;
3493 }
3494 $in_patchcheck = 0;
3495 success $i;
3496
3497 return 1;
3498}
3499
3500my %depends;
3501my %depcount;
3502my $iflevel = 0;
3503my @ifdeps;
3504
3505# prevent recursion
3506my %read_kconfigs;
3507
3508sub add_dep {
3509 # $config depends on $dep
3510 my ($config, $dep) = @_;
3511
3512 if (defined($depends{$config})) {
3513 $depends{$config} .= " " . $dep;
3514 } else {
3515 $depends{$config} = $dep;
3516 }
3517
3518 # record the number of configs depending on $dep
3519 if (defined $depcount{$dep}) {
3520 $depcount{$dep}++;
3521 } else {
3522 $depcount{$dep} = 1;
3523 }
3524}
3525
3526# taken from streamline_config.pl
3527sub read_kconfig {
3528 my ($kconfig) = @_;
3529
3530 my $state = "NONE";
3531 my $config;
3532 my @kconfigs;
3533
3534 my $cont = 0;
3535 my $line;
3536
3537
3538 if (! -f $kconfig) {
3539 doprint "file $kconfig does not exist, skipping\n";
3540 return;
3541 }
3542
3543 open(KIN, "$kconfig")
3544 or die "Can't open $kconfig";
3545 while (<KIN>) {
3546 chomp;
3547
3548 # Make sure that lines ending with \ continue
3549 if ($cont) {
3550 $_ = $line . " " . $_;
3551 }
3552
3553 if (s/\\$//) {
3554 $cont = 1;
3555 $line = $_;
3556 next;
3557 }
3558
3559 $cont = 0;
3560
3561 # collect any Kconfig sources
3562 if (/^source\s*"(.*)"/) {
3563 $kconfigs[$#kconfigs+1] = $1;
3564 }
3565
3566 # configs found
3567 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3568 $state = "NEW";
3569 $config = $2;
3570
3571 for (my $i = 0; $i < $iflevel; $i++) {
3572 add_dep $config, $ifdeps[$i];
3573 }
3574
3575 # collect the depends for the config
3576 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3577
3578 add_dep $config, $1;
3579
3580 # Get the configs that select this config
3581 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3582
3583 # selected by depends on config
3584 add_dep $1, $config;
3585
3586 # Check for if statements
3587 } elsif (/^if\s+(.*\S)\s*$/) {
3588 my $deps = $1;
3589 # remove beginning and ending non text
3590 $deps =~ s/^[^a-zA-Z0-9_]*//;
3591 $deps =~ s/[^a-zA-Z0-9_]*$//;
3592
3593 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3594
3595 $ifdeps[$iflevel++] = join ':', @deps;
3596
3597 } elsif (/^endif/) {
3598
3599 $iflevel-- if ($iflevel);
3600
3601 # stop on "help"
3602 } elsif (/^\s*help\s*$/) {
3603 $state = "NONE";
3604 }
3605 }
3606 close(KIN);
3607
3608 # read in any configs that were found.
3609 foreach $kconfig (@kconfigs) {
3610 if (!defined($read_kconfigs{$kconfig})) {
3611 $read_kconfigs{$kconfig} = 1;
3612 read_kconfig("$builddir/$kconfig");
3613 }
3614 }
3615}
3616
3617sub read_depends {
3618 # find out which arch this is by the kconfig file
3619 open (IN, $output_config)
3620 or dodie "Failed to read $output_config";
3621 my $arch;
3622 while (<IN>) {
3623 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3624 $arch = $1;
3625 last;
3626 }
3627 }
3628 close IN;
3629
3630 if (!defined($arch)) {
3631 doprint "Could not find arch from config file\n";
3632 doprint "no dependencies used\n";
3633 return;
3634 }
3635
3636 # arch is really the subarch, we need to know
3637 # what directory to look at.
3638 if ($arch eq "i386" || $arch eq "x86_64") {
3639 $arch = "x86";
3640 } elsif ($arch =~ /^tile/) {
3641 $arch = "tile";
3642 }
3643
3644 my $kconfig = "$builddir/arch/$arch/Kconfig";
3645
3646 if (! -f $kconfig && $arch =~ /\d$/) {
3647 my $orig = $arch;
3648 # some subarchs have numbers, truncate them
3649 $arch =~ s/\d*$//;
3650 $kconfig = "$builddir/arch/$arch/Kconfig";
3651 if (! -f $kconfig) {
3652 doprint "No idea what arch dir $orig is for\n";
3653 doprint "no dependencies used\n";
3654 return;
3655 }
3656 }
3657
3658 read_kconfig($kconfig);
3659}
3660
3661sub make_new_config {
3662 my @configs = @_;
3663
3664 open (OUT, ">$output_config")
3665 or dodie "Failed to write $output_config";
3666
3667 foreach my $config (@configs) {
3668 print OUT "$config\n";
3669 }
3670 close OUT;
3671}
3672
3673sub chomp_config {
3674 my ($config) = @_;
3675
3676 $config =~ s/CONFIG_//;
3677
3678 return $config;
3679}
3680
3681sub get_depends {
3682 my ($dep) = @_;
3683
3684 my $kconfig = chomp_config $dep;
3685
3686 $dep = $depends{"$kconfig"};
3687
3688 # the dep string we have saves the dependencies as they
3689 # were found, including expressions like ! && ||. We
3690 # want to split this out into just an array of configs.
3691
3692 my $valid = "A-Za-z_0-9";
3693
3694 my @configs;
3695
3696 while ($dep =~ /[$valid]/) {
3697
3698 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3699 my $conf = "CONFIG_" . $1;
3700
3701 $configs[$#configs + 1] = $conf;
3702
3703 $dep =~ s/^[^$valid]*[$valid]+//;
3704 } else {
3705 die "this should never happen";
3706 }
3707 }
3708
3709 return @configs;
3710}
3711
3712my %min_configs;
3713my %keep_configs;
3714my %save_configs;
3715my %processed_configs;
3716my %nochange_config;
3717
3718sub test_this_config {
3719 my ($config) = @_;
3720
3721 my $found;
3722
3723 # if we already processed this config, skip it
3724 if (defined($processed_configs{$config})) {
3725 return undef;
3726 }
3727 $processed_configs{$config} = 1;
3728
3729 # if this config failed during this round, skip it
3730 if (defined($nochange_config{$config})) {
3731 return undef;
3732 }
3733
3734 my $kconfig = chomp_config $config;
3735
3736 # Test dependencies first
3737 if (defined($depends{"$kconfig"})) {
3738 my @parents = get_depends $config;
3739 foreach my $parent (@parents) {
3740 # if the parent is in the min config, check it first
3741 next if (!defined($min_configs{$parent}));
3742 $found = test_this_config($parent);
3743 if (defined($found)) {
3744 return $found;
3745 }
3746 }
3747 }
3748
3749 # Remove this config from the list of configs
3750 # do a make olddefconfig and then read the resulting
3751 # .config to make sure it is missing the config that
3752 # we had before
3753 my %configs = %min_configs;
3754 delete $configs{$config};
3755 make_new_config ((values %configs), (values %keep_configs));
3756 make_oldconfig;
3757 undef %configs;
3758 assign_configs \%configs, $output_config;
3759
3760 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3761 return $config;
3762 }
3763
3764 doprint "disabling config $config did not change .config\n";
3765
3766 $nochange_config{$config} = 1;
3767
3768 return undef;
3769}
3770
3771sub make_min_config {
3772 my ($i) = @_;
3773
3774 my $type = $minconfig_type;
3775 if ($type ne "boot" && $type ne "test") {
3776 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3777 " make_min_config works only with 'boot' and 'test'\n" and return;
3778 }
3779
3780 if (!defined($output_minconfig)) {
3781 fail "OUTPUT_MIN_CONFIG not defined" and return;
3782 }
3783
3784 # If output_minconfig exists, and the start_minconfig
3785 # came from min_config, than ask if we should use
3786 # that instead.
3787 if (-f $output_minconfig && !$start_minconfig_defined) {
3788 print "$output_minconfig exists\n";
3789 if (!defined($use_output_minconfig)) {
3790 if (read_yn " Use it as minconfig?") {
3791 $start_minconfig = $output_minconfig;
3792 }
3793 } elsif ($use_output_minconfig > 0) {
3794 doprint "Using $output_minconfig as MIN_CONFIG\n";
3795 $start_minconfig = $output_minconfig;
3796 } else {
3797 doprint "Set to still use MIN_CONFIG as starting point\n";
3798 }
3799 }
3800
3801 if (!defined($start_minconfig)) {
3802 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3803 }
3804
3805 my $temp_config = "$tmpdir/temp_config";
3806
3807 # First things first. We build an allnoconfig to find
3808 # out what the defaults are that we can't touch.
3809 # Some are selections, but we really can't handle selections.
3810
3811 my $save_minconfig = $minconfig;
3812 undef $minconfig;
3813
3814 run_command "$make allnoconfig" or return 0;
3815
3816 read_depends;
3817
3818 process_config_ignore $output_config;
3819
3820 undef %save_configs;
3821 undef %min_configs;
3822
3823 if (defined($ignore_config)) {
3824 # make sure the file exists
3825 `touch $ignore_config`;
3826 assign_configs \%save_configs, $ignore_config;
3827 }
3828
3829 %keep_configs = %save_configs;
3830
3831 doprint "Load initial configs from $start_minconfig\n";
3832
3833 # Look at the current min configs, and save off all the
3834 # ones that were set via the allnoconfig
3835 assign_configs \%min_configs, $start_minconfig;
3836
3837 my @config_keys = keys %min_configs;
3838
3839 # All configs need a depcount
3840 foreach my $config (@config_keys) {
3841 my $kconfig = chomp_config $config;
3842 if (!defined $depcount{$kconfig}) {
3843 $depcount{$kconfig} = 0;
3844 }
3845 }
3846
3847 # Remove anything that was set by the make allnoconfig
3848 # we shouldn't need them as they get set for us anyway.
3849 foreach my $config (@config_keys) {
3850 # Remove anything in the ignore_config
3851 if (defined($keep_configs{$config})) {
3852 my $file = $ignore_config;
3853 $file =~ s,.*/(.*?)$,$1,;
3854 doprint "$config set by $file ... ignored\n";
3855 delete $min_configs{$config};
3856 next;
3857 }
3858 # But make sure the settings are the same. If a min config
3859 # sets a selection, we do not want to get rid of it if
3860 # it is not the same as what we have. Just move it into
3861 # the keep configs.
3862 if (defined($config_ignore{$config})) {
3863 if ($config_ignore{$config} ne $min_configs{$config}) {
3864 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3865 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3866 $keep_configs{$config} = $min_configs{$config};
3867 } else {
3868 doprint "$config set by allnoconfig ... ignored\n";
3869 }
3870 delete $min_configs{$config};
3871 }
3872 }
3873
3874 my $done = 0;
3875 my $take_two = 0;
3876
3877 while (!$done) {
3878
3879 my $config;
3880 my $found;
3881
3882 # Now disable each config one by one and do a make oldconfig
3883 # till we find a config that changes our list.
3884
3885 my @test_configs = keys %min_configs;
3886
3887 # Sort keys by who is most dependent on
3888 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3889 @test_configs ;
3890
3891 # Put configs that did not modify the config at the end.
3892 my $reset = 1;
3893 for (my $i = 0; $i < $#test_configs; $i++) {
3894 if (!defined($nochange_config{$test_configs[0]})) {
3895 $reset = 0;
3896 last;
3897 }
3898 # This config didn't change the .config last time.
3899 # Place it at the end
3900 my $config = shift @test_configs;
3901 push @test_configs, $config;
3902 }
3903
3904 # if every test config has failed to modify the .config file
3905 # in the past, then reset and start over.
3906 if ($reset) {
3907 undef %nochange_config;
3908 }
3909
3910 undef %processed_configs;
3911
3912 foreach my $config (@test_configs) {
3913
3914 $found = test_this_config $config;
3915
3916 last if (defined($found));
3917
3918 # oh well, try another config
3919 }
3920
3921 if (!defined($found)) {
3922 # we could have failed due to the nochange_config hash
3923 # reset and try again
3924 if (!$take_two) {
3925 undef %nochange_config;
3926 $take_two = 1;
3927 next;
3928 }
3929 doprint "No more configs found that we can disable\n";
3930 $done = 1;
3931 last;
3932 }
3933 $take_two = 0;
3934
3935 $config = $found;
3936
3937 doprint "Test with $config disabled\n";
3938
3939 # set in_bisect to keep build and monitor from dieing
3940 $in_bisect = 1;
3941
3942 my $failed = 0;
3943 build "oldconfig" or $failed = 1;
3944 if (!$failed) {
3945 start_monitor_and_install or $failed = 1;
3946
3947 if ($type eq "test" && !$failed) {
3948 do_run_test or $failed = 1;
3949 }
3950
3951 end_monitor;
3952 }
3953
3954 $in_bisect = 0;
3955
3956 if ($failed) {
3957 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3958 # this config is needed, add it to the ignore list.
3959 $keep_configs{$config} = $min_configs{$config};
3960 $save_configs{$config} = $min_configs{$config};
3961 delete $min_configs{$config};
3962
3963 # update new ignore configs
3964 if (defined($ignore_config)) {
3965 open (OUT, ">$temp_config")
3966 or die "Can't write to $temp_config";
3967 foreach my $config (keys %save_configs) {
3968 print OUT "$save_configs{$config}\n";
3969 }
3970 close OUT;
3971 run_command "mv $temp_config $ignore_config" or
3972 dodie "failed to copy update to $ignore_config";
3973 }
3974
3975 } else {
3976 # We booted without this config, remove it from the minconfigs.
3977 doprint "$config is not needed, disabling\n";
3978
3979 delete $min_configs{$config};
3980
3981 # Also disable anything that is not enabled in this config
3982 my %configs;
3983 assign_configs \%configs, $output_config;
3984 my @config_keys = keys %min_configs;
3985 foreach my $config (@config_keys) {
3986 if (!defined($configs{$config})) {
3987 doprint "$config is not set, disabling\n";
3988 delete $min_configs{$config};
3989 }
3990 }
3991
3992 # Save off all the current mandatory configs
3993 open (OUT, ">$temp_config")
3994 or die "Can't write to $temp_config";
3995 foreach my $config (keys %keep_configs) {
3996 print OUT "$keep_configs{$config}\n";
3997 }
3998 foreach my $config (keys %min_configs) {
3999 print OUT "$min_configs{$config}\n";
4000 }
4001 close OUT;
4002
4003 run_command "mv $temp_config $output_minconfig" or
4004 dodie "failed to copy update to $output_minconfig";
4005 }
4006
4007 doprint "Reboot and wait $sleep_time seconds\n";
4008 reboot_to_good $sleep_time;
4009 }
4010
4011 success $i;
4012 return 1;
4013}
4014
4015sub make_warnings_file {
4016 my ($i) = @_;
4017
4018 if (!defined($warnings_file)) {
4019 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4020 }
4021
4022 if ($build_type eq "nobuild") {
4023 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4024 }
4025
4026 build $build_type or dodie "Failed to build";
4027
4028 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4029
4030 open(IN, $buildlog) or dodie "Can't open $buildlog";
4031 while (<IN>) {
4032
4033 # Some compilers use UTF-8 extended for quotes
4034 # for distcc heterogeneous systems, this causes issues
4035 s/$utf8_quote/'/g;
4036
4037 if (/$check_build_re/) {
4038 print OUT;
4039 }
4040 }
4041 close(IN);
4042
4043 close(OUT);
4044
4045 success $i;
4046}
4047
4048$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4049
4050if ($#ARGV == 0) {
4051 $ktest_config = $ARGV[0];
4052 if (! -f $ktest_config) {
4053 print "$ktest_config does not exist.\n";
4054 if (!read_yn "Create it?") {
4055 exit 0;
4056 }
4057 }
4058}
4059
4060if (! -f $ktest_config) {
4061 $newconfig = 1;
4062 get_test_case;
4063 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4064 print OUT << "EOF"
4065# Generated by ktest.pl
4066#
4067
4068# PWD is a ktest.pl variable that will result in the process working
4069# directory that ktest.pl is executed in.
4070
4071# THIS_DIR is automatically assigned the PWD of the path that generated
4072# the config file. It is best to use this variable when assigning other
4073# directory paths within this directory. This allows you to easily
4074# move the test cases to other locations or to other machines.
4075#
4076THIS_DIR := $variable{"PWD"}
4077
4078# Define each test with TEST_START
4079# The config options below it will override the defaults
4080TEST_START
4081TEST_TYPE = $default{"TEST_TYPE"}
4082
4083DEFAULTS
4084EOF
4085;
4086 close(OUT);
4087}
4088read_config $ktest_config;
4089
4090if (defined($opt{"LOG_FILE"})) {
4091 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4092}
4093
4094# Append any configs entered in manually to the config file.
4095my @new_configs = keys %entered_configs;
4096if ($#new_configs >= 0) {
4097 print "\nAppending entered in configs to $ktest_config\n";
4098 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4099 foreach my $config (@new_configs) {
4100 print OUT "$config = $entered_configs{$config}\n";
4101 $opt{$config} = process_variables($entered_configs{$config});
4102 }
4103}
4104
4105if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4106 unlink $opt{"LOG_FILE"};
4107}
4108
4109doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4110
4111for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4112
4113 if (!$i) {
4114 doprint "DEFAULT OPTIONS:\n";
4115 } else {
4116 doprint "\nTEST $i OPTIONS";
4117 if (defined($repeat_tests{$i})) {
4118 $repeat = $repeat_tests{$i};
4119 doprint " ITERATE $repeat";
4120 }
4121 doprint "\n";
4122 }
4123
4124 foreach my $option (sort keys %opt) {
4125
4126 if ($option =~ /\[(\d+)\]$/) {
4127 next if ($i != $1);
4128 } else {
4129 next if ($i);
4130 }
4131
4132 doprint "$option = $opt{$option}\n";
4133 }
4134}
4135
4136sub option_defined {
4137 my ($option) = @_;
4138
4139 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4140 return 1;
4141 }
4142
4143 return 0;
4144}
4145
4146sub __set_test_option {
4147 my ($name, $i) = @_;
4148
4149 my $option = "$name\[$i\]";
4150
4151 if (option_defined($option)) {
4152 return $opt{$option};
4153 }
4154
4155 foreach my $test (keys %repeat_tests) {
4156 if ($i >= $test &&
4157 $i < $test + $repeat_tests{$test}) {
4158 $option = "$name\[$test\]";
4159 if (option_defined($option)) {
4160 return $opt{$option};
4161 }
4162 }
4163 }
4164
4165 if (option_defined($name)) {
4166 return $opt{$name};
4167 }
4168
4169 return undef;
4170}
4171
4172sub set_test_option {
4173 my ($name, $i) = @_;
4174
4175 my $option = __set_test_option($name, $i);
4176 return $option if (!defined($option));
4177
4178 return eval_option($name, $option, $i);
4179}
4180
4181# First we need to do is the builds
4182for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4183
4184 # Do not reboot on failing test options
4185 $no_reboot = 1;
4186 $reboot_success = 0;
4187
4188 $have_version = 0;
4189
4190 $iteration = $i;
4191
4192 $build_time = 0;
4193 $install_time = 0;
4194 $reboot_time = 0;
4195 $test_time = 0;
4196
4197 undef %force_config;
4198
4199 my $makecmd = set_test_option("MAKE_CMD", $i);
4200
4201 $outputdir = set_test_option("OUTPUT_DIR", $i);
4202 $builddir = set_test_option("BUILD_DIR", $i);
4203
4204 chdir $builddir || die "can't change directory to $builddir";
4205
4206 if (!-d $outputdir) {
4207 mkpath($outputdir) or
4208 die "can't create $outputdir";
4209 }
4210
4211 $make = "$makecmd O=$outputdir";
4212
4213 # Load all the options into their mapped variable names
4214 foreach my $opt (keys %option_map) {
4215 ${$option_map{$opt}} = set_test_option($opt, $i);
4216 }
4217
4218 $start_minconfig_defined = 1;
4219
4220 # The first test may override the PRE_KTEST option
4221 if (defined($pre_ktest) && $i == 1) {
4222 doprint "\n";
4223 run_command $pre_ktest;
4224 }
4225
4226 # Any test can override the POST_KTEST option
4227 # The last test takes precedence.
4228 if (defined($post_ktest)) {
4229 $final_post_ktest = $post_ktest;
4230 }
4231
4232 if (!defined($start_minconfig)) {
4233 $start_minconfig_defined = 0;
4234 $start_minconfig = $minconfig;
4235 }
4236
4237 if (!-d $tmpdir) {
4238 mkpath($tmpdir) or
4239 die "can't create $tmpdir";
4240 }
4241
4242 $ENV{"SSH_USER"} = $ssh_user;
4243 $ENV{"MACHINE"} = $machine;
4244
4245 $buildlog = "$tmpdir/buildlog-$machine";
4246 $testlog = "$tmpdir/testlog-$machine";
4247 $dmesg = "$tmpdir/dmesg-$machine";
4248 $output_config = "$outputdir/.config";
4249
4250 if (!$buildonly) {
4251 $target = "$ssh_user\@$machine";
4252 if ($reboot_type eq "grub") {
4253 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4254 } elsif ($reboot_type eq "grub2") {
4255 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4256 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4257 } elsif ($reboot_type eq "syslinux") {
4258 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4259 }
4260 }
4261
4262 my $run_type = $build_type;
4263 if ($test_type eq "patchcheck") {
4264 $run_type = $patchcheck_type;
4265 } elsif ($test_type eq "bisect") {
4266 $run_type = $bisect_type;
4267 } elsif ($test_type eq "config_bisect") {
4268 $run_type = $config_bisect_type;
4269 } elsif ($test_type eq "make_min_config") {
4270 $run_type = "";
4271 } elsif ($test_type eq "make_warnings_file") {
4272 $run_type = "";
4273 }
4274
4275 # mistake in config file?
4276 if (!defined($run_type)) {
4277 $run_type = "ERROR";
4278 }
4279
4280 my $installme = "";
4281 $installme = " no_install" if ($no_install);
4282
4283 my $name = "";
4284
4285 if (defined($test_name)) {
4286 $name = " ($test_name)";
4287 }
4288
4289 doprint "\n\n";
4290 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4291
4292 if (defined($pre_test)) {
4293 run_command $pre_test;
4294 }
4295
4296 unlink $dmesg;
4297 unlink $buildlog;
4298 unlink $testlog;
4299
4300 if (defined($addconfig)) {
4301 my $min = $minconfig;
4302 if (!defined($minconfig)) {
4303 $min = "";
4304 }
4305 run_command "cat $addconfig $min > $tmpdir/add_config" or
4306 dodie "Failed to create temp config";
4307 $minconfig = "$tmpdir/add_config";
4308 }
4309
4310 if (defined($checkout)) {
4311 run_command "git checkout $checkout" or
4312 die "failed to checkout $checkout";
4313 }
4314
4315 $no_reboot = 0;
4316
4317 # A test may opt to not reboot the box
4318 if ($reboot_on_success) {
4319 $reboot_success = 1;
4320 }
4321
4322 if ($test_type eq "bisect") {
4323 bisect $i;
4324 next;
4325 } elsif ($test_type eq "config_bisect") {
4326 config_bisect $i;
4327 next;
4328 } elsif ($test_type eq "patchcheck") {
4329 patchcheck $i;
4330 next;
4331 } elsif ($test_type eq "make_min_config") {
4332 make_min_config $i;
4333 next;
4334 } elsif ($test_type eq "make_warnings_file") {
4335 $no_reboot = 1;
4336 make_warnings_file $i;
4337 next;
4338 }
4339
4340 if ($build_type ne "nobuild") {
4341 build $build_type or next;
4342 check_buildlog or next;
4343 }
4344
4345 if ($test_type eq "install") {
4346 get_version;
4347 install;
4348 success $i;
4349 next;
4350 }
4351
4352 if ($test_type ne "build") {
4353 my $failed = 0;
4354 start_monitor_and_install or $failed = 1;
4355
4356 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4357 do_run_test or $failed = 1;
4358 }
4359 end_monitor;
4360 if ($failed) {
4361 print_times;
4362 next;
4363 }
4364 }
4365
4366 print_times;
4367
4368 success $i;
4369}
4370
4371if (defined($final_post_ktest)) {
4372 run_command $final_post_ktest;
4373}
4374
4375if ($opt{"POWEROFF_ON_SUCCESS"}) {
4376 halt;
4377} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4378 reboot_to_good;
4379} elsif (defined($switch_to_good)) {
4380 # still need to get to the good kernel
4381 run_command $switch_to_good;
4382}
4383
4384
4385doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4386
4387exit 0;
1#!/usr/bin/perl -w
2# SPDX-License-Identifier: GPL-2.0-only
3#
4# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
5#
6
7use strict;
8use IPC::Open2;
9use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10use File::Path qw(mkpath);
11use File::Copy qw(cp);
12use FileHandle;
13use FindBin;
14use IO::Handle;
15
16my $VERSION = "0.2";
17
18$| = 1;
19
20my %opt;
21my %repeat_tests;
22my %repeats;
23my %evals;
24
25#default opts
26my %default = (
27 "MAILER" => "sendmail", # default mailer
28 "EMAIL_ON_ERROR" => 1,
29 "EMAIL_WHEN_FINISHED" => 1,
30 "EMAIL_WHEN_CANCELED" => 0,
31 "EMAIL_WHEN_STARTED" => 0,
32 "NUM_TESTS" => 1,
33 "TEST_TYPE" => "build",
34 "BUILD_TYPE" => "oldconfig",
35 "MAKE_CMD" => "make",
36 "CLOSE_CONSOLE_SIGNAL" => "INT",
37 "TIMEOUT" => 120,
38 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
39 "SLEEP_TIME" => 60, # sleep time between tests
40 "BUILD_NOCLEAN" => 0,
41 "REBOOT_ON_ERROR" => 0,
42 "POWEROFF_ON_ERROR" => 0,
43 "REBOOT_ON_SUCCESS" => 1,
44 "POWEROFF_ON_SUCCESS" => 0,
45 "BUILD_OPTIONS" => "",
46 "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
47 "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
48 "CLEAR_LOG" => 0,
49 "BISECT_MANUAL" => 0,
50 "BISECT_SKIP" => 1,
51 "BISECT_TRIES" => 1,
52 "MIN_CONFIG_TYPE" => "boot",
53 "SUCCESS_LINE" => "login:",
54 "DETECT_TRIPLE_FAULT" => 1,
55 "NO_INSTALL" => 0,
56 "BOOTED_TIMEOUT" => 1,
57 "DIE_ON_FAILURE" => 1,
58 "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
59 "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
60 "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
61 "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
62 "REBOOT_RETURN_CODE" => 255,
63 "STOP_AFTER_SUCCESS" => 10,
64 "STOP_AFTER_FAILURE" => 60,
65 "STOP_TEST_AFTER" => 600,
66 "MAX_MONITOR_WAIT" => 1800,
67 "GRUB_REBOOT" => "grub2-reboot",
68 "GRUB_BLS_GET" => "grubby --info=ALL",
69 "SYSLINUX" => "extlinux",
70 "SYSLINUX_PATH" => "/boot/extlinux",
71 "CONNECT_TIMEOUT" => 25,
72
73# required, and we will ask users if they don't have them but we keep the default
74# value something that is common.
75 "REBOOT_TYPE" => "grub",
76 "LOCALVERSION" => "-test",
77 "SSH_USER" => "root",
78 "BUILD_TARGET" => "arch/x86/boot/bzImage",
79 "TARGET_IMAGE" => "/boot/vmlinuz-test",
80
81 "LOG_FILE" => undef,
82 "IGNORE_UNUSED" => 0,
83);
84
85my $test_log_start = 0;
86
87my $ktest_config = "ktest.conf";
88my $version;
89my $have_version = 0;
90my $machine;
91my $last_machine;
92my $ssh_user;
93my $tmpdir;
94my $builddir;
95my $outputdir;
96my $output_config;
97my $test_type;
98my $build_type;
99my $build_options;
100my $final_post_ktest;
101my $pre_ktest;
102my $post_ktest;
103my $pre_test;
104my $pre_test_die;
105my $post_test;
106my $pre_build;
107my $post_build;
108my $pre_build_die;
109my $post_build_die;
110my $reboot_type;
111my $reboot_script;
112my $power_cycle;
113my $reboot;
114my $reboot_return_code;
115my $reboot_on_error;
116my $switch_to_good;
117my $switch_to_test;
118my $poweroff_on_error;
119my $reboot_on_success;
120my $die_on_failure;
121my $powercycle_after_reboot;
122my $poweroff_after_halt;
123my $max_monitor_wait;
124my $ssh_exec;
125my $scp_to_target;
126my $scp_to_target_install;
127my $power_off;
128my $grub_menu;
129my $last_grub_menu;
130my $grub_file;
131my $grub_number;
132my $grub_reboot;
133my $grub_bls_get;
134my $syslinux;
135my $syslinux_path;
136my $syslinux_label;
137my $target;
138my $make;
139my $pre_install;
140my $post_install;
141my $no_install;
142my $noclean;
143my $minconfig;
144my $start_minconfig;
145my $start_minconfig_defined;
146my $output_minconfig;
147my $minconfig_type;
148my $use_output_minconfig;
149my $warnings_file;
150my $ignore_config;
151my $ignore_errors;
152my $addconfig;
153my $in_bisect = 0;
154my $bisect_bad_commit = "";
155my $reverse_bisect;
156my $bisect_manual;
157my $bisect_skip;
158my $bisect_tries;
159my $config_bisect_good;
160my $bisect_ret_good;
161my $bisect_ret_bad;
162my $bisect_ret_skip;
163my $bisect_ret_abort;
164my $bisect_ret_default;
165my $in_patchcheck = 0;
166my $run_test;
167my $buildlog;
168my $testlog;
169my $dmesg;
170my $monitor_fp;
171my $monitor_pid;
172my $monitor_cnt = 0;
173my $sleep_time;
174my $bisect_sleep_time;
175my $patchcheck_sleep_time;
176my $ignore_warnings;
177my $store_failures;
178my $store_successes;
179my $test_name;
180my $timeout;
181my $run_timeout;
182my $connect_timeout;
183my $config_bisect_exec;
184my $booted_timeout;
185my $detect_triplefault;
186my $console;
187my $close_console_signal;
188my $reboot_success_line;
189my $success_line;
190my $stop_after_success;
191my $stop_after_failure;
192my $stop_test_after;
193my $build_target;
194my $target_image;
195my $checkout;
196my $localversion;
197my $iteration = 0;
198my $successes = 0;
199my $stty_orig;
200my $run_command_status = 0;
201
202my $bisect_good;
203my $bisect_bad;
204my $bisect_type;
205my $bisect_start;
206my $bisect_replay;
207my $bisect_files;
208my $bisect_reverse;
209my $bisect_check;
210
211my $config_bisect;
212my $config_bisect_type;
213my $config_bisect_check;
214
215my $patchcheck_type;
216my $patchcheck_start;
217my $patchcheck_cherry;
218my $patchcheck_end;
219
220my $build_time;
221my $install_time;
222my $reboot_time;
223my $test_time;
224
225my $pwd;
226my $dirname = $FindBin::Bin;
227
228my $mailto;
229my $mailer;
230my $mail_path;
231my $mail_max_size;
232my $mail_command;
233my $email_on_error;
234my $email_when_finished;
235my $email_when_started;
236my $email_when_canceled;
237
238my $script_start_time = localtime();
239
240# set when a test is something other that just building or install
241# which would require more options.
242my $buildonly = 1;
243
244# tell build not to worry about warnings, even when WARNINGS_FILE is set
245my $warnings_ok = 0;
246
247# set when creating a new config
248my $newconfig = 0;
249
250my %entered_configs;
251my %config_help;
252my %variable;
253
254# force_config is the list of configs that we force enabled (or disabled)
255# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
256my %force_config;
257
258# do not force reboots on config problems
259my $no_reboot = 1;
260
261# reboot on success
262my $reboot_success = 0;
263
264my %option_map = (
265 "MAILTO" => \$mailto,
266 "MAILER" => \$mailer,
267 "MAIL_PATH" => \$mail_path,
268 "MAIL_MAX_SIZE" => \$mail_max_size,
269 "MAIL_COMMAND" => \$mail_command,
270 "EMAIL_ON_ERROR" => \$email_on_error,
271 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
272 "EMAIL_WHEN_STARTED" => \$email_when_started,
273 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
274 "MACHINE" => \$machine,
275 "SSH_USER" => \$ssh_user,
276 "TMP_DIR" => \$tmpdir,
277 "OUTPUT_DIR" => \$outputdir,
278 "BUILD_DIR" => \$builddir,
279 "TEST_TYPE" => \$test_type,
280 "PRE_KTEST" => \$pre_ktest,
281 "POST_KTEST" => \$post_ktest,
282 "PRE_TEST" => \$pre_test,
283 "PRE_TEST_DIE" => \$pre_test_die,
284 "POST_TEST" => \$post_test,
285 "BUILD_TYPE" => \$build_type,
286 "BUILD_OPTIONS" => \$build_options,
287 "PRE_BUILD" => \$pre_build,
288 "POST_BUILD" => \$post_build,
289 "PRE_BUILD_DIE" => \$pre_build_die,
290 "POST_BUILD_DIE" => \$post_build_die,
291 "POWER_CYCLE" => \$power_cycle,
292 "REBOOT" => \$reboot,
293 "REBOOT_RETURN_CODE" => \$reboot_return_code,
294 "BUILD_NOCLEAN" => \$noclean,
295 "MIN_CONFIG" => \$minconfig,
296 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
297 "START_MIN_CONFIG" => \$start_minconfig,
298 "MIN_CONFIG_TYPE" => \$minconfig_type,
299 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
300 "WARNINGS_FILE" => \$warnings_file,
301 "IGNORE_CONFIG" => \$ignore_config,
302 "TEST" => \$run_test,
303 "ADD_CONFIG" => \$addconfig,
304 "REBOOT_TYPE" => \$reboot_type,
305 "GRUB_MENU" => \$grub_menu,
306 "GRUB_FILE" => \$grub_file,
307 "GRUB_REBOOT" => \$grub_reboot,
308 "GRUB_BLS_GET" => \$grub_bls_get,
309 "SYSLINUX" => \$syslinux,
310 "SYSLINUX_PATH" => \$syslinux_path,
311 "SYSLINUX_LABEL" => \$syslinux_label,
312 "PRE_INSTALL" => \$pre_install,
313 "POST_INSTALL" => \$post_install,
314 "NO_INSTALL" => \$no_install,
315 "REBOOT_SCRIPT" => \$reboot_script,
316 "REBOOT_ON_ERROR" => \$reboot_on_error,
317 "SWITCH_TO_GOOD" => \$switch_to_good,
318 "SWITCH_TO_TEST" => \$switch_to_test,
319 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
320 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
321 "DIE_ON_FAILURE" => \$die_on_failure,
322 "POWER_OFF" => \$power_off,
323 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
324 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
325 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
326 "SLEEP_TIME" => \$sleep_time,
327 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
328 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
329 "IGNORE_WARNINGS" => \$ignore_warnings,
330 "IGNORE_ERRORS" => \$ignore_errors,
331 "BISECT_MANUAL" => \$bisect_manual,
332 "BISECT_SKIP" => \$bisect_skip,
333 "BISECT_TRIES" => \$bisect_tries,
334 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
335 "BISECT_RET_GOOD" => \$bisect_ret_good,
336 "BISECT_RET_BAD" => \$bisect_ret_bad,
337 "BISECT_RET_SKIP" => \$bisect_ret_skip,
338 "BISECT_RET_ABORT" => \$bisect_ret_abort,
339 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
340 "STORE_FAILURES" => \$store_failures,
341 "STORE_SUCCESSES" => \$store_successes,
342 "TEST_NAME" => \$test_name,
343 "TIMEOUT" => \$timeout,
344 "RUN_TIMEOUT" => \$run_timeout,
345 "CONNECT_TIMEOUT" => \$connect_timeout,
346 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
347 "BOOTED_TIMEOUT" => \$booted_timeout,
348 "CONSOLE" => \$console,
349 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
350 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
351 "SUCCESS_LINE" => \$success_line,
352 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
353 "STOP_AFTER_SUCCESS" => \$stop_after_success,
354 "STOP_AFTER_FAILURE" => \$stop_after_failure,
355 "STOP_TEST_AFTER" => \$stop_test_after,
356 "BUILD_TARGET" => \$build_target,
357 "SSH_EXEC" => \$ssh_exec,
358 "SCP_TO_TARGET" => \$scp_to_target,
359 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
360 "CHECKOUT" => \$checkout,
361 "TARGET_IMAGE" => \$target_image,
362 "LOCALVERSION" => \$localversion,
363
364 "BISECT_GOOD" => \$bisect_good,
365 "BISECT_BAD" => \$bisect_bad,
366 "BISECT_TYPE" => \$bisect_type,
367 "BISECT_START" => \$bisect_start,
368 "BISECT_REPLAY" => \$bisect_replay,
369 "BISECT_FILES" => \$bisect_files,
370 "BISECT_REVERSE" => \$bisect_reverse,
371 "BISECT_CHECK" => \$bisect_check,
372
373 "CONFIG_BISECT" => \$config_bisect,
374 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
375 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
376
377 "PATCHCHECK_TYPE" => \$patchcheck_type,
378 "PATCHCHECK_START" => \$patchcheck_start,
379 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
380 "PATCHCHECK_END" => \$patchcheck_end,
381);
382
383# Options may be used by other options, record them.
384my %used_options;
385
386# default variables that can be used
387chomp ($variable{"PWD"} = `pwd`);
388$pwd = $variable{"PWD"};
389
390$config_help{"MACHINE"} = << "EOF"
391 The machine hostname that you will test.
392 For build only tests, it is still needed to differentiate log files.
393EOF
394 ;
395$config_help{"SSH_USER"} = << "EOF"
396 The box is expected to have ssh on normal bootup, provide the user
397 (most likely root, since you need privileged operations)
398EOF
399 ;
400$config_help{"BUILD_DIR"} = << "EOF"
401 The directory that contains the Linux source code (full path).
402 You can use \${PWD} that will be the path where ktest.pl is run, or use
403 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
404EOF
405 ;
406$config_help{"OUTPUT_DIR"} = << "EOF"
407 The directory that the objects will be built (full path).
408 (can not be same as BUILD_DIR)
409 You can use \${PWD} that will be the path where ktest.pl is run, or use
410 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
411EOF
412 ;
413$config_help{"BUILD_TARGET"} = << "EOF"
414 The location of the compiled file to copy to the target.
415 (relative to OUTPUT_DIR)
416EOF
417 ;
418$config_help{"BUILD_OPTIONS"} = << "EOF"
419 Options to add to \"make\" when building.
420 i.e. -j20
421EOF
422 ;
423$config_help{"TARGET_IMAGE"} = << "EOF"
424 The place to put your image on the test machine.
425EOF
426 ;
427$config_help{"POWER_CYCLE"} = << "EOF"
428 A script or command to reboot the box.
429
430 Here is a digital loggers power switch example
431 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
432
433 Here is an example to reboot a virtual box on the current host
434 with the name "Guest".
435 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
436EOF
437 ;
438$config_help{"CONSOLE"} = << "EOF"
439 The script or command that reads the console
440
441 If you use ttywatch server, something like the following would work.
442CONSOLE = nc -d localhost 3001
443
444 For a virtual machine with guest name "Guest".
445CONSOLE = virsh console Guest
446EOF
447 ;
448$config_help{"LOCALVERSION"} = << "EOF"
449 Required version ending to differentiate the test
450 from other linux builds on the system.
451EOF
452 ;
453$config_help{"REBOOT_TYPE"} = << "EOF"
454 Way to reboot the box to the test kernel.
455 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
456
457 If you specify grub, it will assume grub version 1
458 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
459 and select that target to reboot to the kernel. If this is not
460 your setup, then specify "script" and have a command or script
461 specified in REBOOT_SCRIPT to boot to the target.
462
463 The entry in /boot/grub/menu.lst must be entered in manually.
464 The test will not modify that file.
465
466 If you specify grub2, then you also need to specify both \$GRUB_MENU
467 and \$GRUB_FILE.
468
469 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
470
471 If you specify syslinux, then you may use SYSLINUX to define the syslinux
472 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
473 the syslinux install (defaults to /boot/extlinux). But you have to specify
474 SYSLINUX_LABEL to define the label to boot to for the test kernel.
475EOF
476 ;
477$config_help{"GRUB_MENU"} = << "EOF"
478 The grub title name for the test kernel to boot
479 (Only mandatory if REBOOT_TYPE = grub or grub2)
480
481 Note, ktest.pl will not update the grub menu.lst, you need to
482 manually add an option for the test. ktest.pl will search
483 the grub menu.lst for this option to find what kernel to
484 reboot into.
485
486 For example, if in the /boot/grub/menu.lst the test kernel title has:
487 title Test Kernel
488 kernel vmlinuz-test
489 GRUB_MENU = Test Kernel
490
491 For grub2, a search of \$GRUB_FILE is performed for the lines
492 that begin with "menuentry". It will not detect submenus. The
493 menu must be a non-nested menu. Add the quotes used in the menu
494 to guarantee your selection, as the first menuentry with the content
495 of \$GRUB_MENU that is found will be used.
496
497 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
498 command for the lines that begin with "title".
499EOF
500 ;
501$config_help{"GRUB_FILE"} = << "EOF"
502 If grub2 is used, the full path for the grub.cfg file is placed
503 here. Use something like /boot/grub2/grub.cfg to search.
504EOF
505 ;
506$config_help{"SYSLINUX_LABEL"} = << "EOF"
507 If syslinux is used, the label that boots the target kernel must
508 be specified with SYSLINUX_LABEL.
509EOF
510 ;
511$config_help{"REBOOT_SCRIPT"} = << "EOF"
512 A script to reboot the target into the test kernel
513 (Only mandatory if REBOOT_TYPE = script)
514EOF
515 ;
516
517# used with process_expression()
518my $d = 0;
519
520# defined before get_test_name()
521my $in_die = 0;
522
523# defined before process_warning_line()
524my $check_build_re = ".*:.*(warning|error|Error):.*";
525my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
526
527# defined before child_finished()
528my $child_done;
529
530# config_ignore holds the configs that were set (or unset) for
531# a good config and we will ignore these configs for the rest
532# of a config bisect. These configs stay as they were.
533my %config_ignore;
534
535# config_set holds what all configs were set as.
536my %config_set;
537
538# config_off holds the set of configs that the bad config had disabled.
539# We need to record them and set them in the .config when running
540# olddefconfig, because olddefconfig keeps the defaults.
541my %config_off;
542
543# config_off_tmp holds a set of configs to turn off for now
544my @config_off_tmp;
545
546# config_list is the set of configs that are being tested
547my %config_list;
548my %null_config;
549
550my %dependency;
551
552# found above run_config_bisect()
553my $pass = 1;
554
555# found above add_dep()
556
557my %depends;
558my %depcount;
559my $iflevel = 0;
560my @ifdeps;
561
562# prevent recursion
563my %read_kconfigs;
564
565# found above test_this_config()
566my %min_configs;
567my %keep_configs;
568my %save_configs;
569my %processed_configs;
570my %nochange_config;
571
572#
573# These are first defined here, main function later on
574#
575sub run_command;
576sub start_monitor;
577sub end_monitor;
578sub wait_for_monitor;
579
580sub _logit {
581 if (defined($opt{"LOG_FILE"})) {
582 print LOG @_;
583 }
584}
585
586sub logit {
587 if (defined($opt{"LOG_FILE"})) {
588 _logit @_;
589 } else {
590 print @_;
591 }
592}
593
594sub doprint {
595 print @_;
596 _logit @_;
597}
598
599sub read_prompt {
600 my ($cancel, $prompt) = @_;
601
602 my $ans;
603
604 for (;;) {
605 if ($cancel) {
606 print "$prompt [y/n/C] ";
607 } else {
608 print "$prompt [Y/n] ";
609 }
610 $ans = <STDIN>;
611 chomp $ans;
612 if ($ans =~ /^\s*$/) {
613 if ($cancel) {
614 $ans = "c";
615 } else {
616 $ans = "y";
617 }
618 }
619 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
620 if ($cancel) {
621 last if ($ans =~ /^c$/i);
622 print "Please answer either 'y', 'n' or 'c'.\n";
623 } else {
624 print "Please answer either 'y' or 'n'.\n";
625 }
626 }
627 if ($ans =~ /^c/i) {
628 exit;
629 }
630 if ($ans !~ /^y$/i) {
631 return 0;
632 }
633 return 1;
634}
635
636sub read_yn {
637 my ($prompt) = @_;
638
639 return read_prompt 0, $prompt;
640}
641
642sub read_ync {
643 my ($prompt) = @_;
644
645 return read_prompt 1, $prompt;
646}
647
648sub get_mandatory_config {
649 my ($config) = @_;
650 my $ans;
651
652 return if (defined($opt{$config}));
653
654 if (defined($config_help{$config})) {
655 print "\n";
656 print $config_help{$config};
657 }
658
659 for (;;) {
660 print "$config = ";
661 if (defined($default{$config}) && length($default{$config})) {
662 print "\[$default{$config}\] ";
663 }
664 $ans = <STDIN>;
665 $ans =~ s/^\s*(.*\S)\s*$/$1/;
666 if ($ans =~ /^\s*$/) {
667 if ($default{$config}) {
668 $ans = $default{$config};
669 } else {
670 print "Your answer can not be blank\n";
671 next;
672 }
673 }
674 $entered_configs{$config} = ${ans};
675 last;
676 }
677}
678
679sub show_time {
680 my ($time) = @_;
681
682 my $hours = 0;
683 my $minutes = 0;
684
685 if ($time > 3600) {
686 $hours = int($time / 3600);
687 $time -= $hours * 3600;
688 }
689 if ($time > 60) {
690 $minutes = int($time / 60);
691 $time -= $minutes * 60;
692 }
693
694 if ($hours > 0) {
695 doprint "$hours hour";
696 doprint "s" if ($hours > 1);
697 doprint " ";
698 }
699
700 if ($minutes > 0) {
701 doprint "$minutes minute";
702 doprint "s" if ($minutes > 1);
703 doprint " ";
704 }
705
706 doprint "$time second";
707 doprint "s" if ($time != 1);
708}
709
710sub print_times {
711 doprint "\n";
712 if ($build_time) {
713 doprint "Build time: ";
714 show_time($build_time);
715 doprint "\n";
716 }
717 if ($install_time) {
718 doprint "Install time: ";
719 show_time($install_time);
720 doprint "\n";
721 }
722 if ($reboot_time) {
723 doprint "Reboot time: ";
724 show_time($reboot_time);
725 doprint "\n";
726 }
727 if ($test_time) {
728 doprint "Test time: ";
729 show_time($test_time);
730 doprint "\n";
731 }
732 # reset for iterations like bisect
733 $build_time = 0;
734 $install_time = 0;
735 $reboot_time = 0;
736 $test_time = 0;
737}
738
739sub get_mandatory_configs {
740 get_mandatory_config("MACHINE");
741 get_mandatory_config("BUILD_DIR");
742 get_mandatory_config("OUTPUT_DIR");
743
744 if ($newconfig) {
745 get_mandatory_config("BUILD_OPTIONS");
746 }
747
748 # options required for other than just building a kernel
749 if (!$buildonly) {
750 get_mandatory_config("POWER_CYCLE");
751 get_mandatory_config("CONSOLE");
752 }
753
754 # options required for install and more
755 if ($buildonly != 1) {
756 get_mandatory_config("SSH_USER");
757 get_mandatory_config("BUILD_TARGET");
758 get_mandatory_config("TARGET_IMAGE");
759 }
760
761 get_mandatory_config("LOCALVERSION");
762
763 return if ($buildonly);
764
765 my $rtype = $opt{"REBOOT_TYPE"};
766
767 if (!defined($rtype)) {
768 if (!defined($opt{"GRUB_MENU"})) {
769 get_mandatory_config("REBOOT_TYPE");
770 $rtype = $entered_configs{"REBOOT_TYPE"};
771 } else {
772 $rtype = "grub";
773 }
774 }
775
776 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
777 get_mandatory_config("GRUB_MENU");
778 }
779
780 if ($rtype eq "grub2") {
781 get_mandatory_config("GRUB_MENU");
782 get_mandatory_config("GRUB_FILE");
783 }
784
785 if ($rtype eq "syslinux") {
786 get_mandatory_config("SYSLINUX_LABEL");
787 }
788}
789
790sub process_variables {
791 my ($value, $remove_undef) = @_;
792 my $retval = "";
793
794 # We want to check for '\', and it is just easier
795 # to check the previous characet of '$' and not need
796 # to worry if '$' is the first character. By adding
797 # a space to $value, we can just check [^\\]\$ and
798 # it will still work.
799 $value = " $value";
800
801 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
802 my $begin = $1;
803 my $var = $2;
804 my $end = $3;
805 # append beginning of value to retval
806 $retval = "$retval$begin";
807 if ($var =~ s/^shell\s+//) {
808 $retval = `$var`;
809 if ($?) {
810 doprint "WARNING: $var returned an error\n";
811 } else {
812 chomp $retval;
813 }
814 } elsif (defined($variable{$var})) {
815 $retval = "$retval$variable{$var}";
816 } elsif (defined($remove_undef) && $remove_undef) {
817 # for if statements, any variable that is not defined,
818 # we simple convert to 0
819 $retval = "${retval}0";
820 } else {
821 # put back the origin piece.
822 $retval = "$retval\$\{$var\}";
823 # This could be an option that is used later, save
824 # it so we don't warn if this option is not one of
825 # ktests options.
826 $used_options{$var} = 1;
827 }
828 $value = $end;
829 }
830 $retval = "$retval$value";
831
832 # remove the space added in the beginning
833 $retval =~ s/ //;
834
835 return "$retval";
836}
837
838sub set_value {
839 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
840
841 my $prvalue = process_variables($rvalue);
842
843 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
844 $prvalue !~ /^(config_|)bisect$/ &&
845 $prvalue !~ /^build$/ &&
846 $buildonly) {
847
848 # Note if a test is something other than build, then we
849 # will need other mandatory options.
850 if ($prvalue ne "install") {
851 $buildonly = 0;
852 } else {
853 # install still limits some mandatory options.
854 $buildonly = 2;
855 }
856 }
857
858 if (defined($opt{$lvalue})) {
859 if (!$override || defined(${$overrides}{$lvalue})) {
860 my $extra = "";
861 if ($override) {
862 $extra = "In the same override section!\n";
863 }
864 die "$name: $.: Option $lvalue defined more than once!\n$extra";
865 }
866 ${$overrides}{$lvalue} = $prvalue;
867 }
868
869 $opt{$lvalue} = $prvalue;
870}
871
872sub set_eval {
873 my ($lvalue, $rvalue, $name) = @_;
874
875 my $prvalue = process_variables($rvalue);
876 my $arr;
877
878 if (defined($evals{$lvalue})) {
879 $arr = $evals{$lvalue};
880 } else {
881 $arr = [];
882 $evals{$lvalue} = $arr;
883 }
884
885 push @{$arr}, $rvalue;
886}
887
888sub set_variable {
889 my ($lvalue, $rvalue) = @_;
890
891 if ($rvalue =~ /^\s*$/) {
892 delete $variable{$lvalue};
893 } else {
894 $rvalue = process_variables($rvalue);
895 $variable{$lvalue} = $rvalue;
896 }
897}
898
899sub process_compare {
900 my ($lval, $cmp, $rval) = @_;
901
902 # remove whitespace
903
904 $lval =~ s/^\s*//;
905 $lval =~ s/\s*$//;
906
907 $rval =~ s/^\s*//;
908 $rval =~ s/\s*$//;
909
910 if ($cmp eq "==") {
911 return $lval eq $rval;
912 } elsif ($cmp eq "!=") {
913 return $lval ne $rval;
914 } elsif ($cmp eq "=~") {
915 return $lval =~ m/$rval/;
916 } elsif ($cmp eq "!~") {
917 return $lval !~ m/$rval/;
918 }
919
920 my $statement = "$lval $cmp $rval";
921 my $ret = eval $statement;
922
923 # $@ stores error of eval
924 if ($@) {
925 return -1;
926 }
927
928 return $ret;
929}
930
931sub value_defined {
932 my ($val) = @_;
933
934 return defined($variable{$2}) ||
935 defined($opt{$2});
936}
937
938sub process_expression {
939 my ($name, $val) = @_;
940
941 my $c = $d++;
942
943 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
944 my $express = $1;
945
946 if (process_expression($name, $express)) {
947 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
948 } else {
949 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
950 }
951 }
952
953 $d--;
954 my $OR = "\\|\\|";
955 my $AND = "\\&\\&";
956
957 while ($val =~ s/^(.*?)($OR|$AND)//) {
958 my $express = $1;
959 my $op = $2;
960
961 if (process_expression($name, $express)) {
962 if ($op eq "||") {
963 return 1;
964 }
965 } else {
966 if ($op eq "&&") {
967 return 0;
968 }
969 }
970 }
971
972 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
973 my $ret = process_compare($1, $2, $3);
974 if ($ret < 0) {
975 die "$name: $.: Unable to process comparison\n";
976 }
977 return $ret;
978 }
979
980 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
981 if (defined $1) {
982 return !value_defined($2);
983 } else {
984 return value_defined($2);
985 }
986 }
987
988 if ($val =~ s/^\s*NOT\s+(.*)//) {
989 my $express = $1;
990 my $ret = process_expression($name, $express);
991 return !$ret;
992 }
993
994 if ($val =~ /^\s*0\s*$/) {
995 return 0;
996 } elsif ($val =~ /^\s*\d+\s*$/) {
997 return 1;
998 }
999
1000 die ("$name: $.: Undefined content $val in if statement\n");
1001}
1002
1003sub process_if {
1004 my ($name, $value) = @_;
1005
1006 # Convert variables and replace undefined ones with 0
1007 my $val = process_variables($value, 1);
1008 my $ret = process_expression $name, $val;
1009
1010 return $ret;
1011}
1012
1013sub __read_config {
1014 my ($config, $current_test_num) = @_;
1015
1016 my $in;
1017 open($in, $config) || die "can't read file $config";
1018
1019 my $name = $config;
1020 $name =~ s,.*/(.*),$1,;
1021
1022 my $test_num = $$current_test_num;
1023 my $default = 1;
1024 my $repeat = 1;
1025 my $num_tests_set = 0;
1026 my $skip = 0;
1027 my $rest;
1028 my $line;
1029 my $test_case = 0;
1030 my $if = 0;
1031 my $if_set = 0;
1032 my $override = 0;
1033
1034 my %overrides;
1035
1036 while (<$in>) {
1037
1038 # ignore blank lines and comments
1039 next if (/^\s*$/ || /\s*\#/);
1040
1041 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1042
1043 my $type = $1;
1044 $rest = $2;
1045 $line = $2;
1046
1047 my $old_test_num;
1048 my $old_repeat;
1049 $override = 0;
1050
1051 if ($type eq "TEST_START") {
1052 if ($num_tests_set) {
1053 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1054 }
1055
1056 $old_test_num = $test_num;
1057 $old_repeat = $repeat;
1058
1059 $test_num += $repeat;
1060 $default = 0;
1061 $repeat = 1;
1062 } else {
1063 $default = 1;
1064 }
1065
1066 # If SKIP is anywhere in the line, the command will be skipped
1067 if ($rest =~ s/\s+SKIP\b//) {
1068 $skip = 1;
1069 } else {
1070 $test_case = 1;
1071 $skip = 0;
1072 }
1073
1074 if ($rest =~ s/\sELSE\b//) {
1075 if (!$if) {
1076 die "$name: $.: ELSE found with out matching IF section\n$_";
1077 }
1078 $if = 0;
1079
1080 if ($if_set) {
1081 $skip = 1;
1082 } else {
1083 $skip = 0;
1084 }
1085 }
1086
1087 if ($rest =~ s/\sIF\s+(.*)//) {
1088 if (process_if($name, $1)) {
1089 $if_set = 1;
1090 } else {
1091 $skip = 1;
1092 }
1093 $if = 1;
1094 } else {
1095 $if = 0;
1096 $if_set = 0;
1097 }
1098
1099 if (!$skip) {
1100 if ($type eq "TEST_START") {
1101 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1102 $repeat = $1;
1103 $repeat_tests{"$test_num"} = $repeat;
1104 }
1105 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1106 # DEFAULT only
1107 $override = 1;
1108 # Clear previous overrides
1109 %overrides = ();
1110 }
1111 }
1112
1113 if (!$skip && $rest !~ /^\s*$/) {
1114 die "$name: $.: Garbage found after $type\n$_";
1115 }
1116
1117 if ($skip && $type eq "TEST_START") {
1118 $test_num = $old_test_num;
1119 $repeat = $old_repeat;
1120 }
1121 } elsif (/^\s*ELSE\b(.*)$/) {
1122 if (!$if) {
1123 die "$name: $.: ELSE found with out matching IF section\n$_";
1124 }
1125 $rest = $1;
1126 if ($if_set) {
1127 $skip = 1;
1128 $rest = "";
1129 } else {
1130 $skip = 0;
1131
1132 if ($rest =~ /\sIF\s+(.*)/) {
1133 # May be a ELSE IF section.
1134 if (process_if($name, $1)) {
1135 $if_set = 1;
1136 } else {
1137 $skip = 1;
1138 }
1139 $rest = "";
1140 } else {
1141 $if = 0;
1142 }
1143 }
1144
1145 if ($rest !~ /^\s*$/) {
1146 die "$name: $.: Garbage found after DEFAULTS\n$_";
1147 }
1148
1149 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1150
1151 next if ($skip);
1152
1153 if (!$default) {
1154 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1155 }
1156
1157 my $file = process_variables($1);
1158
1159 if ($file !~ m,^/,) {
1160 # check the path of the config file first
1161 if ($config =~ m,(.*)/,) {
1162 if (-f "$1/$file") {
1163 $file = "$1/$file";
1164 }
1165 }
1166 }
1167
1168 if ( ! -r $file ) {
1169 die "$name: $.: Can't read file $file\n$_";
1170 }
1171
1172 if (__read_config($file, \$test_num)) {
1173 $test_case = 1;
1174 }
1175
1176 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1177
1178 next if ($skip);
1179
1180 my $lvalue = $1;
1181 my $rvalue = $2;
1182
1183 if ($default || $lvalue =~ /\[\d+\]$/) {
1184 set_eval($lvalue, $rvalue, $name);
1185 } else {
1186 my $val = "$lvalue\[$test_num\]";
1187 set_eval($val, $rvalue, $name);
1188 }
1189
1190 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1191
1192 next if ($skip);
1193
1194 my $lvalue = $1;
1195 my $rvalue = $2;
1196
1197 if (!$default &&
1198 ($lvalue eq "NUM_TESTS" ||
1199 $lvalue eq "LOG_FILE" ||
1200 $lvalue eq "CLEAR_LOG")) {
1201 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1202 }
1203
1204 if ($lvalue eq "NUM_TESTS") {
1205 if ($test_num) {
1206 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1207 }
1208 if (!$default) {
1209 die "$name: $.: NUM_TESTS must be set in default section\n";
1210 }
1211 $num_tests_set = 1;
1212 }
1213
1214 if ($default || $lvalue =~ /\[\d+\]$/) {
1215 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1216 } else {
1217 my $val = "$lvalue\[$test_num\]";
1218 set_value($val, $rvalue, $override, \%overrides, $name);
1219
1220 if ($repeat > 1) {
1221 $repeats{$val} = $repeat;
1222 }
1223 }
1224 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1225 next if ($skip);
1226
1227 my $lvalue = $1;
1228 my $rvalue = $2;
1229
1230 # process config variables.
1231 # Config variables are only active while reading the
1232 # config and can be defined anywhere. They also ignore
1233 # TEST_START and DEFAULTS, but are skipped if they are in
1234 # on of these sections that have SKIP defined.
1235 # The save variable can be
1236 # defined multiple times and the new one simply overrides
1237 # the previous one.
1238 set_variable($lvalue, $rvalue);
1239
1240 } else {
1241 die "$name: $.: Garbage found in config\n$_";
1242 }
1243 }
1244
1245 if ($test_num) {
1246 $test_num += $repeat - 1;
1247 $opt{"NUM_TESTS"} = $test_num;
1248 }
1249
1250 close($in);
1251
1252 $$current_test_num = $test_num;
1253
1254 return $test_case;
1255}
1256
1257sub get_test_case {
1258 print "What test case would you like to run?\n";
1259 print " (build, install or boot)\n";
1260 print " Other tests are available but require editing ktest.conf\n";
1261 print " (see tools/testing/ktest/sample.conf)\n";
1262 my $ans = <STDIN>;
1263 chomp $ans;
1264 $default{"TEST_TYPE"} = $ans;
1265}
1266
1267sub read_config {
1268 my ($config) = @_;
1269
1270 my $test_case;
1271 my $test_num = 0;
1272
1273 $test_case = __read_config $config, \$test_num;
1274
1275 # make sure we have all mandatory configs
1276 get_mandatory_configs;
1277
1278 # was a test specified?
1279 if (!$test_case) {
1280 print "No test case specified.\n";
1281 get_test_case;
1282 }
1283
1284 # set any defaults
1285
1286 foreach my $default (keys %default) {
1287 if (!defined($opt{$default})) {
1288 $opt{$default} = $default{$default};
1289 }
1290 }
1291
1292 if ($opt{"IGNORE_UNUSED"} == 1) {
1293 return;
1294 }
1295
1296 my %not_used;
1297
1298 # check if there are any stragglers (typos?)
1299 foreach my $option (keys %opt) {
1300 my $op = $option;
1301 # remove per test labels.
1302 $op =~ s/\[.*\]//;
1303 if (!exists($option_map{$op}) &&
1304 !exists($default{$op}) &&
1305 !exists($used_options{$op})) {
1306 $not_used{$op} = 1;
1307 }
1308 }
1309
1310 if (%not_used) {
1311 my $s = "s are";
1312 $s = " is" if (keys %not_used == 1);
1313 print "The following option$s not used; could be a typo:\n";
1314 foreach my $option (keys %not_used) {
1315 print "$option\n";
1316 }
1317 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1318 if (!read_yn "Do you want to continue?") {
1319 exit -1;
1320 }
1321 }
1322}
1323
1324sub __eval_option {
1325 my ($name, $option, $i) = @_;
1326
1327 # Add space to evaluate the character before $
1328 $option = " $option";
1329 my $retval = "";
1330 my $repeated = 0;
1331 my $parent = 0;
1332
1333 foreach my $test (keys %repeat_tests) {
1334 if ($i >= $test &&
1335 $i < $test + $repeat_tests{$test}) {
1336
1337 $repeated = 1;
1338 $parent = $test;
1339 last;
1340 }
1341 }
1342
1343 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1344 my $start = $1;
1345 my $var = $2;
1346 my $end = $3;
1347
1348 # Append beginning of line
1349 $retval = "$retval$start";
1350
1351 # If the iteration option OPT[$i] exists, then use that.
1352 # otherwise see if the default OPT (without [$i]) exists.
1353
1354 my $o = "$var\[$i\]";
1355 my $parento = "$var\[$parent\]";
1356
1357 # If a variable contains itself, use the default var
1358 if (($var eq $name) && defined($opt{$var})) {
1359 $o = $opt{$var};
1360 $retval = "$retval$o";
1361 } elsif (defined($opt{$o})) {
1362 $o = $opt{$o};
1363 $retval = "$retval$o";
1364 } elsif ($repeated && defined($opt{$parento})) {
1365 $o = $opt{$parento};
1366 $retval = "$retval$o";
1367 } elsif (defined($opt{$var})) {
1368 $o = $opt{$var};
1369 $retval = "$retval$o";
1370 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1371 # special option KERNEL_VERSION uses kernel version
1372 get_version();
1373 $retval = "$retval$version";
1374 } else {
1375 $retval = "$retval\$\{$var\}";
1376 }
1377
1378 $option = $end;
1379 }
1380
1381 $retval = "$retval$option";
1382
1383 $retval =~ s/^ //;
1384
1385 return $retval;
1386}
1387
1388sub process_evals {
1389 my ($name, $option, $i) = @_;
1390
1391 my $option_name = "$name\[$i\]";
1392 my $ev;
1393
1394 my $old_option = $option;
1395
1396 if (defined($evals{$option_name})) {
1397 $ev = $evals{$option_name};
1398 } elsif (defined($evals{$name})) {
1399 $ev = $evals{$name};
1400 } else {
1401 return $option;
1402 }
1403
1404 for my $e (@{$ev}) {
1405 eval "\$option =~ $e";
1406 }
1407
1408 if ($option ne $old_option) {
1409 doprint("$name changed from '$old_option' to '$option'\n");
1410 }
1411
1412 return $option;
1413}
1414
1415sub eval_option {
1416 my ($name, $option, $i) = @_;
1417
1418 my $prev = "";
1419
1420 # Since an option can evaluate to another option,
1421 # keep iterating until we do not evaluate any more
1422 # options.
1423 my $r = 0;
1424 while ($prev ne $option) {
1425 # Check for recursive evaluations.
1426 # 100 deep should be more than enough.
1427 if ($r++ > 100) {
1428 die "Over 100 evaluations occurred with $option\n" .
1429 "Check for recursive variables\n";
1430 }
1431 $prev = $option;
1432 $option = __eval_option($name, $option, $i);
1433 }
1434
1435 $option = process_evals($name, $option, $i);
1436
1437 return $option;
1438}
1439
1440sub reboot {
1441 my ($time) = @_;
1442 my $powercycle = 0;
1443
1444 # test if the machine can be connected to within a few seconds
1445 my $stat = run_ssh("echo check machine status", $connect_timeout);
1446 if (!$stat) {
1447 doprint("power cycle\n");
1448 $powercycle = 1;
1449 }
1450
1451 if ($powercycle) {
1452 run_command "$power_cycle";
1453
1454 start_monitor;
1455 # flush out current monitor
1456 # May contain the reboot success line
1457 wait_for_monitor 1;
1458
1459 } else {
1460 # Make sure everything has been written to disk
1461 run_ssh("sync", 10);
1462
1463 if (defined($time)) {
1464 start_monitor;
1465 # flush out current monitor
1466 # May contain the reboot success line
1467 wait_for_monitor 1;
1468 }
1469
1470 # try to reboot normally
1471 if (run_command $reboot) {
1472 if (defined($powercycle_after_reboot)) {
1473 sleep $powercycle_after_reboot;
1474 run_command "$power_cycle";
1475 }
1476 } else {
1477 # nope? power cycle it.
1478 run_command "$power_cycle";
1479 }
1480 }
1481
1482 if (defined($time)) {
1483
1484 # We only want to get to the new kernel, don't fail
1485 # if we stumble over a call trace.
1486 my $save_ignore_errors = $ignore_errors;
1487 $ignore_errors = 1;
1488
1489 # Look for the good kernel to boot
1490 if (wait_for_monitor($time, "Linux version")) {
1491 # reboot got stuck?
1492 doprint "Reboot did not finish. Forcing power cycle\n";
1493 run_command "$power_cycle";
1494 }
1495
1496 $ignore_errors = $save_ignore_errors;
1497
1498 # Still need to wait for the reboot to finish
1499 wait_for_monitor($time, $reboot_success_line);
1500 }
1501 if ($powercycle || $time) {
1502 end_monitor;
1503 }
1504}
1505
1506sub reboot_to_good {
1507 my ($time) = @_;
1508
1509 if (defined($switch_to_good)) {
1510 run_command $switch_to_good;
1511 }
1512
1513 reboot $time;
1514}
1515
1516sub do_not_reboot {
1517 my $i = $iteration;
1518
1519 return $test_type eq "build" || $no_reboot ||
1520 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1521 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1522 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1523}
1524
1525sub get_test_name() {
1526 my $name;
1527
1528 if (defined($test_name)) {
1529 $name = "$test_name:$test_type";
1530 } else {
1531 $name = $test_type;
1532 }
1533 return $name;
1534}
1535
1536sub dodie {
1537 # avoid recursion
1538 return if ($in_die);
1539 $in_die = 1;
1540
1541 if ($monitor_cnt) {
1542 # restore terminal settings
1543 system("stty $stty_orig");
1544 }
1545
1546 my $i = $iteration;
1547
1548 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1549
1550 if ($reboot_on_error && !do_not_reboot) {
1551 doprint "REBOOTING\n";
1552 reboot_to_good;
1553 } elsif ($poweroff_on_error && defined($power_off)) {
1554 doprint "POWERING OFF\n";
1555 `$power_off`;
1556 }
1557
1558 if (defined($opt{"LOG_FILE"})) {
1559 print " See $opt{LOG_FILE} for more info.\n";
1560 }
1561
1562 if ($email_on_error) {
1563 my $name = get_test_name;
1564 my $log_file;
1565
1566 if (defined($opt{"LOG_FILE"})) {
1567 my $whence = 2; # End of file
1568 my $log_size = tell LOG;
1569 my $size = $log_size - $test_log_start;
1570
1571 if (defined($mail_max_size)) {
1572 if ($size > $mail_max_size) {
1573 $size = $mail_max_size;
1574 }
1575 }
1576 my $pos = - $size;
1577 $log_file = "$tmpdir/log";
1578 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1579 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1580 seek(L, $pos, $whence);
1581 while (<L>) {
1582 print O;
1583 }
1584 close O;
1585 close L;
1586 }
1587
1588 send_email("KTEST: critical failure for test $i [$name]",
1589 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1590 }
1591
1592 if (defined($post_test)) {
1593 run_command $post_test;
1594 }
1595
1596 die @_, "\n";
1597}
1598
1599sub create_pty {
1600 my ($ptm, $pts) = @_;
1601 my $tmp;
1602 my $TIOCSPTLCK = 0x40045431;
1603 my $TIOCGPTN = 0x80045430;
1604
1605 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1606 dodie "Can't open /dev/ptmx";
1607
1608 # unlockpt()
1609 $tmp = pack("i", 0);
1610 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1611 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1612
1613 # ptsname()
1614 ioctl($ptm, $TIOCGPTN, $tmp) or
1615 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1616 $tmp = unpack("i", $tmp);
1617
1618 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1619 dodie "Can't open /dev/pts/$tmp";
1620}
1621
1622sub exec_console {
1623 my ($ptm, $pts) = @_;
1624
1625 close($ptm);
1626
1627 close(\*STDIN);
1628 close(\*STDOUT);
1629 close(\*STDERR);
1630
1631 open(\*STDIN, '<&', $pts);
1632 open(\*STDOUT, '>&', $pts);
1633 open(\*STDERR, '>&', $pts);
1634
1635 close($pts);
1636
1637 exec $console or
1638 dodie "Can't open console $console";
1639}
1640
1641sub open_console {
1642 my ($ptm) = @_;
1643 my $pts = \*PTSFD;
1644 my $pid;
1645
1646 # save terminal settings
1647 $stty_orig = `stty -g`;
1648
1649 # place terminal in cbreak mode so that stdin can be read one character at
1650 # a time without having to wait for a newline
1651 system("stty -icanon -echo -icrnl");
1652
1653 create_pty($ptm, $pts);
1654
1655 $pid = fork;
1656
1657 if (!$pid) {
1658 # child
1659 exec_console($ptm, $pts)
1660 }
1661
1662 # parent
1663 close($pts);
1664
1665 return $pid;
1666
1667 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1668}
1669
1670sub close_console {
1671 my ($fp, $pid) = @_;
1672
1673 doprint "kill child process $pid\n";
1674 kill $close_console_signal, $pid;
1675
1676 doprint "wait for child process $pid to exit\n";
1677 waitpid($pid, 0);
1678
1679 print "closing!\n";
1680 close($fp);
1681
1682 # restore terminal settings
1683 system("stty $stty_orig");
1684}
1685
1686sub start_monitor {
1687 if ($monitor_cnt++) {
1688 return;
1689 }
1690 $monitor_fp = \*MONFD;
1691 $monitor_pid = open_console $monitor_fp;
1692
1693 return;
1694
1695 open(MONFD, "Stop perl from warning about single use of MONFD");
1696}
1697
1698sub end_monitor {
1699 return if (!defined $console);
1700 if (--$monitor_cnt) {
1701 return;
1702 }
1703 close_console($monitor_fp, $monitor_pid);
1704}
1705
1706sub wait_for_monitor {
1707 my ($time, $stop) = @_;
1708 my $full_line = "";
1709 my $line;
1710 my $booted = 0;
1711 my $start_time = time;
1712 my $skip_call_trace = 0;
1713 my $bug = 0;
1714 my $bug_ignored = 0;
1715 my $now;
1716
1717 doprint "** Wait for monitor to settle down **\n";
1718
1719 # read the monitor and wait for the system to calm down
1720 while (!$booted) {
1721 $line = wait_for_input($monitor_fp, $time);
1722 last if (!defined($line));
1723 print "$line";
1724 $full_line .= $line;
1725
1726 if (defined($stop) && $full_line =~ /$stop/) {
1727 doprint "wait for monitor detected $stop\n";
1728 $booted = 1;
1729 }
1730
1731 if ($full_line =~ /\[ backtrace testing \]/) {
1732 $skip_call_trace = 1;
1733 }
1734
1735 if ($full_line =~ /call trace:/i) {
1736 if (!$bug && !$skip_call_trace) {
1737 if ($ignore_errors) {
1738 $bug_ignored = 1;
1739 } else {
1740 $bug = 1;
1741 }
1742 }
1743 }
1744
1745 if ($full_line =~ /\[ end of backtrace testing \]/) {
1746 $skip_call_trace = 0;
1747 }
1748
1749 if ($full_line =~ /Kernel panic -/) {
1750 $bug = 1;
1751 }
1752
1753 if ($line =~ /\n/) {
1754 $full_line = "";
1755 }
1756 $now = time;
1757 if ($now - $start_time >= $max_monitor_wait) {
1758 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1759 return 1;
1760 }
1761 }
1762 print "** Monitor flushed **\n";
1763
1764 # if stop is defined but wasn't hit, return error
1765 # used by reboot (which wants to see a reboot)
1766 if (defined($stop) && !$booted) {
1767 $bug = 1;
1768 }
1769 return $bug;
1770}
1771
1772sub save_logs {
1773 my ($result, $basedir) = @_;
1774 my @t = localtime;
1775 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1776 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1777
1778 my $type = $build_type;
1779 if ($type =~ /useconfig/) {
1780 $type = "useconfig";
1781 }
1782
1783 my $dir = "$machine-$test_type-$type-$result-$date";
1784
1785 $dir = "$basedir/$dir";
1786
1787 if (!-d $dir) {
1788 mkpath($dir) or
1789 dodie "can't create $dir";
1790 }
1791
1792 my %files = (
1793 "config" => $output_config,
1794 "buildlog" => $buildlog,
1795 "dmesg" => $dmesg,
1796 "testlog" => $testlog,
1797 );
1798
1799 while (my ($name, $source) = each(%files)) {
1800 if (-f "$source") {
1801 cp "$source", "$dir/$name" or
1802 dodie "failed to copy $source";
1803 }
1804 }
1805
1806 doprint "*** Saved info to $dir ***\n";
1807}
1808
1809sub fail {
1810
1811 if ($die_on_failure) {
1812 dodie @_;
1813 }
1814
1815 doprint "FAILED\n";
1816
1817 my $i = $iteration;
1818
1819 # no need to reboot for just building.
1820 if (!do_not_reboot) {
1821 doprint "REBOOTING\n";
1822 reboot_to_good $sleep_time;
1823 }
1824
1825 my $name = "";
1826
1827 if (defined($test_name)) {
1828 $name = " ($test_name)";
1829 }
1830
1831 print_times;
1832
1833 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1834 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1835 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1836 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1837 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1838
1839 if (defined($store_failures)) {
1840 save_logs "fail", $store_failures;
1841 }
1842
1843 if (defined($post_test)) {
1844 run_command $post_test;
1845 }
1846
1847 return 1;
1848}
1849
1850sub run_command {
1851 my ($command, $redirect, $timeout) = @_;
1852 my $start_time;
1853 my $end_time;
1854 my $dolog = 0;
1855 my $dord = 0;
1856 my $dostdout = 0;
1857 my $pid;
1858 my $command_orig = $command;
1859
1860 $command =~ s/\$SSH_USER/$ssh_user/g;
1861 $command =~ s/\$MACHINE/$machine/g;
1862
1863 if (!defined($timeout)) {
1864 $timeout = $run_timeout;
1865 }
1866
1867 if (!defined($timeout)) {
1868 $timeout = -1; # tell wait_for_input to wait indefinitely
1869 }
1870
1871 doprint("$command ... ");
1872 $start_time = time;
1873
1874 $pid = open(CMD, "$command 2>&1 |") or
1875 (fail "unable to exec $command" and return 0);
1876
1877 if (defined($opt{"LOG_FILE"})) {
1878 $dolog = 1;
1879 }
1880
1881 if (defined($redirect)) {
1882 if ($redirect eq 1) {
1883 $dostdout = 1;
1884 # Have the output of the command on its own line
1885 doprint "\n";
1886 } else {
1887 open (RD, ">$redirect") or
1888 dodie "failed to write to redirect $redirect";
1889 $dord = 1;
1890 }
1891 }
1892
1893 my $hit_timeout = 0;
1894
1895 while (1) {
1896 my $fp = \*CMD;
1897 my $line = wait_for_input($fp, $timeout);
1898 if (!defined($line)) {
1899 my $now = time;
1900 if ($timeout >= 0 && (($now - $start_time) >= $timeout)) {
1901 doprint "Hit timeout of $timeout, killing process\n";
1902 $hit_timeout = 1;
1903 kill 9, $pid;
1904 }
1905 last;
1906 }
1907 print LOG $line if ($dolog);
1908 print RD $line if ($dord);
1909 print $line if ($dostdout);
1910 }
1911
1912 waitpid($pid, 0);
1913 # shift 8 for real exit status
1914 $run_command_status = $? >> 8;
1915
1916 if ($command_orig eq $default{REBOOT} &&
1917 $run_command_status == $reboot_return_code) {
1918 $run_command_status = 0;
1919 }
1920
1921 close(CMD);
1922 close(RD) if ($dord);
1923
1924 $end_time = time;
1925 my $delta = $end_time - $start_time;
1926
1927 if ($delta == 1) {
1928 doprint "[1 second] ";
1929 } else {
1930 doprint "[$delta seconds] ";
1931 }
1932
1933 if ($hit_timeout) {
1934 $run_command_status = 1;
1935 }
1936
1937 if ($run_command_status) {
1938 doprint "FAILED!\n";
1939 } else {
1940 doprint "SUCCESS\n";
1941 }
1942
1943 return !$run_command_status;
1944}
1945
1946sub run_ssh {
1947 my ($cmd, $timeout) = @_;
1948 my $cp_exec = $ssh_exec;
1949
1950 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1951 return run_command "$cp_exec", undef , $timeout;
1952}
1953
1954sub run_scp {
1955 my ($src, $dst, $cp_scp) = @_;
1956
1957 $cp_scp =~ s/\$SRC_FILE/$src/g;
1958 $cp_scp =~ s/\$DST_FILE/$dst/g;
1959
1960 return run_command "$cp_scp";
1961}
1962
1963sub run_scp_install {
1964 my ($src, $dst) = @_;
1965
1966 my $cp_scp = $scp_to_target_install;
1967
1968 return run_scp($src, $dst, $cp_scp);
1969}
1970
1971sub run_scp_mod {
1972 my ($src, $dst) = @_;
1973
1974 my $cp_scp = $scp_to_target;
1975
1976 return run_scp($src, $dst, $cp_scp);
1977}
1978
1979sub _get_grub_index {
1980
1981 my ($command, $target, $skip, $submenu) = @_;
1982
1983 return if (defined($grub_number) && defined($last_grub_menu) &&
1984 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1985 $last_machine eq $machine);
1986
1987 doprint "Find $reboot_type menu ... ";
1988 $grub_number = -1;
1989
1990 my $ssh_grub = $ssh_exec;
1991 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1992
1993 open(IN, "$ssh_grub |") or
1994 dodie "unable to execute $command";
1995
1996 my $found = 0;
1997
1998 my $submenu_number = 0;
1999
2000 while (<IN>) {
2001 if (/$target/) {
2002 $grub_number++;
2003 $found = 1;
2004 last;
2005 } elsif (defined($submenu) && /$submenu/) {
2006 $submenu_number++;
2007 $grub_number = -1;
2008 } elsif (/$skip/) {
2009 $grub_number++;
2010 }
2011 }
2012 close(IN);
2013
2014 dodie "Could not find '$grub_menu' through $command on $machine"
2015 if (!$found);
2016 if ($submenu_number > 0) {
2017 $grub_number = "$submenu_number>$grub_number";
2018 }
2019 doprint "$grub_number\n";
2020 $last_grub_menu = $grub_menu;
2021 $last_machine = $machine;
2022}
2023
2024sub get_grub_index {
2025
2026 my $command;
2027 my $target;
2028 my $skip;
2029 my $submenu;
2030 my $grub_menu_qt;
2031
2032 if ($reboot_type !~ /^grub/) {
2033 return;
2034 }
2035
2036 $grub_menu_qt = quotemeta($grub_menu);
2037
2038 if ($reboot_type eq "grub") {
2039 $command = "cat /boot/grub/menu.lst";
2040 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2041 $skip = '^\s*title\s';
2042 } elsif ($reboot_type eq "grub2") {
2043 $command = "cat $grub_file";
2044 $target = '^\s*menuentry.*' . $grub_menu_qt;
2045 $skip = '^\s*menuentry';
2046 $submenu = '^\s*submenu\s';
2047 } elsif ($reboot_type eq "grub2bls") {
2048 $command = $grub_bls_get;
2049 $target = '^title=.*' . $grub_menu_qt;
2050 $skip = '^title=';
2051 } else {
2052 return;
2053 }
2054
2055 _get_grub_index($command, $target, $skip, $submenu);
2056}
2057
2058sub wait_for_input {
2059 my ($fp, $time) = @_;
2060 my $start_time;
2061 my $rin;
2062 my $rout;
2063 my $nr;
2064 my $buf;
2065 my $line;
2066 my $ch;
2067
2068 if (!defined($time)) {
2069 $time = $timeout;
2070 }
2071
2072 if ($time < 0) {
2073 # Negative number means wait indefinitely
2074 undef $time;
2075 }
2076
2077 $rin = '';
2078 vec($rin, fileno($fp), 1) = 1;
2079 vec($rin, fileno(\*STDIN), 1) = 1;
2080
2081 $start_time = time;
2082
2083 while (1) {
2084 $nr = select($rout=$rin, undef, undef, $time);
2085
2086 last if ($nr <= 0);
2087
2088 # copy data from stdin to the console
2089 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2090 $nr = sysread(\*STDIN, $buf, 1000);
2091 syswrite($fp, $buf, $nr) if ($nr > 0);
2092 }
2093
2094 # The timeout is based on time waiting for the fp data
2095 if (vec($rout, fileno($fp), 1) != 1) {
2096 last if (defined($time) && (time - $start_time > $time));
2097 next;
2098 }
2099
2100 $line = "";
2101
2102 # try to read one char at a time
2103 while (sysread $fp, $ch, 1) {
2104 $line .= $ch;
2105 last if ($ch eq "\n");
2106 }
2107
2108 last if (!length($line));
2109
2110 return $line;
2111 }
2112 return undef;
2113}
2114
2115sub reboot_to {
2116 if (defined($switch_to_test)) {
2117 run_command $switch_to_test;
2118 }
2119
2120 if ($reboot_type eq "grub") {
2121 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2122 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2123 run_ssh "$grub_reboot \"'$grub_number'\"";
2124 } elsif ($reboot_type eq "syslinux") {
2125 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2126 } elsif (defined $reboot_script) {
2127 run_command "$reboot_script";
2128 }
2129 reboot;
2130}
2131
2132sub get_sha1 {
2133 my ($commit) = @_;
2134
2135 doprint "git rev-list --max-count=1 $commit ... ";
2136 my $sha1 = `git rev-list --max-count=1 $commit`;
2137 my $ret = $?;
2138
2139 logit $sha1;
2140
2141 if ($ret) {
2142 doprint "FAILED\n";
2143 dodie "Failed to get git $commit";
2144 }
2145
2146 print "SUCCESS\n";
2147
2148 chomp $sha1;
2149
2150 return $sha1;
2151}
2152
2153sub monitor {
2154 my $booted = 0;
2155 my $bug = 0;
2156 my $bug_ignored = 0;
2157 my $skip_call_trace = 0;
2158 my $loops;
2159
2160 my $start_time = time;
2161
2162 wait_for_monitor 5;
2163
2164 my $line;
2165 my $full_line = "";
2166
2167 open(DMESG, "> $dmesg") or
2168 dodie "unable to write to $dmesg";
2169
2170 reboot_to;
2171
2172 my $success_start;
2173 my $failure_start;
2174 my $monitor_start = time;
2175 my $done = 0;
2176 my $version_found = 0;
2177
2178 while (!$done) {
2179 if ($bug && defined($stop_after_failure) &&
2180 $stop_after_failure >= 0) {
2181 my $time = $stop_after_failure - (time - $failure_start);
2182 $line = wait_for_input($monitor_fp, $time);
2183 if (!defined($line)) {
2184 doprint "bug timed out after $booted_timeout seconds\n";
2185 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2186 last;
2187 }
2188 } elsif ($booted) {
2189 $line = wait_for_input($monitor_fp, $booted_timeout);
2190 if (!defined($line)) {
2191 my $s = $booted_timeout == 1 ? "" : "s";
2192 doprint "Successful boot found: break after $booted_timeout second$s\n";
2193 last;
2194 }
2195 } else {
2196 $line = wait_for_input($monitor_fp);
2197 if (!defined($line)) {
2198 my $s = $timeout == 1 ? "" : "s";
2199 doprint "Timed out after $timeout second$s\n";
2200 last;
2201 }
2202 }
2203
2204 doprint $line;
2205 print DMESG $line;
2206
2207 # we are not guaranteed to get a full line
2208 $full_line .= $line;
2209
2210 if ($full_line =~ /$success_line/) {
2211 $booted = 1;
2212 $success_start = time;
2213 }
2214
2215 if ($booted && defined($stop_after_success) &&
2216 $stop_after_success >= 0) {
2217 my $now = time;
2218 if ($now - $success_start >= $stop_after_success) {
2219 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2220 last;
2221 }
2222 }
2223
2224 if ($full_line =~ /\[ backtrace testing \]/) {
2225 $skip_call_trace = 1;
2226 }
2227
2228 if ($full_line =~ /call trace:/i) {
2229 if (!$bug && !$skip_call_trace) {
2230 if ($ignore_errors) {
2231 $bug_ignored = 1;
2232 } else {
2233 $bug = 1;
2234 $failure_start = time;
2235 }
2236 }
2237 }
2238
2239 if ($bug && defined($stop_after_failure) &&
2240 $stop_after_failure >= 0) {
2241 my $now = time;
2242 if ($now - $failure_start >= $stop_after_failure) {
2243 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2244 last;
2245 }
2246 }
2247
2248 if ($full_line =~ /\[ end of backtrace testing \]/) {
2249 $skip_call_trace = 0;
2250 }
2251
2252 if ($full_line =~ /Kernel panic -/) {
2253 $failure_start = time;
2254 $bug = 1;
2255 }
2256
2257 # Detect triple faults by testing the banner
2258 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2259 if ($1 eq $version) {
2260 $version_found = 1;
2261 } elsif ($version_found && $detect_triplefault) {
2262 # We already booted into the kernel we are testing,
2263 # but now we booted into another kernel?
2264 # Consider this a triple fault.
2265 doprint "Already booted in Linux kernel $version, but now\n";
2266 doprint "we booted into Linux kernel $1.\n";
2267 doprint "Assuming that this is a triple fault.\n";
2268 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2269 last;
2270 }
2271 }
2272
2273 if ($line =~ /\n/) {
2274 $full_line = "";
2275 }
2276
2277 if ($stop_test_after > 0 && !$booted && !$bug) {
2278 if (time - $monitor_start > $stop_test_after) {
2279 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2280 $done = 1;
2281 }
2282 }
2283 }
2284
2285 my $end_time = time;
2286 $reboot_time = $end_time - $start_time;
2287
2288 close(DMESG);
2289
2290 if ($bug) {
2291 return 0 if ($in_bisect);
2292 fail "failed - got a bug report" and return 0;
2293 }
2294
2295 if (!$booted) {
2296 return 0 if ($in_bisect);
2297 fail "failed - never got a boot prompt." and return 0;
2298 }
2299
2300 if ($bug_ignored) {
2301 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2302 }
2303
2304 return 1;
2305}
2306
2307sub eval_kernel_version {
2308 my ($option) = @_;
2309
2310 $option =~ s/\$KERNEL_VERSION/$version/g;
2311
2312 return $option;
2313}
2314
2315sub do_post_install {
2316
2317 return if (!defined($post_install));
2318
2319 my $cp_post_install = eval_kernel_version $post_install;
2320 run_command "$cp_post_install" or
2321 dodie "Failed to run post install";
2322}
2323
2324# Sometimes the reboot fails, and will hang. We try to ssh to the box
2325# and if we fail, we force another reboot, that should powercycle it.
2326sub test_booted {
2327 if (!run_ssh "echo testing connection") {
2328 reboot $sleep_time;
2329 }
2330}
2331
2332sub install {
2333
2334 return if ($no_install);
2335
2336 my $start_time = time;
2337
2338 if (defined($pre_install)) {
2339 my $cp_pre_install = eval_kernel_version $pre_install;
2340 run_command "$cp_pre_install" or
2341 dodie "Failed to run pre install";
2342 }
2343
2344 my $cp_target = eval_kernel_version $target_image;
2345
2346 test_booted;
2347
2348 run_scp_install "$outputdir/$build_target", "$cp_target" or
2349 dodie "failed to copy image";
2350
2351 my $install_mods = 0;
2352
2353 # should we process modules?
2354 $install_mods = 0;
2355 open(IN, "$output_config") or dodie("Can't read config file");
2356 while (<IN>) {
2357 if (/CONFIG_MODULES(=y)?/) {
2358 if (defined($1)) {
2359 $install_mods = 1;
2360 last;
2361 }
2362 }
2363 }
2364 close(IN);
2365
2366 if (!$install_mods) {
2367 do_post_install;
2368 doprint "No modules needed\n";
2369 my $end_time = time;
2370 $install_time = $end_time - $start_time;
2371 return;
2372 }
2373
2374 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2375 dodie "Failed to install modules";
2376
2377 my $modlib = "/lib/modules/$version";
2378 my $modtar = "ktest-mods.tar.bz2";
2379
2380 run_ssh "rm -rf $modlib" or
2381 dodie "failed to remove old mods: $modlib";
2382
2383 # would be nice if scp -r did not follow symbolic links
2384 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2385 dodie "making tarball";
2386
2387 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2388 dodie "failed to copy modules";
2389
2390 unlink "$tmpdir/$modtar";
2391
2392 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2393 dodie "failed to tar modules";
2394
2395 run_ssh "rm -f /tmp/$modtar";
2396
2397 do_post_install;
2398
2399 my $end_time = time;
2400 $install_time = $end_time - $start_time;
2401}
2402
2403sub get_version {
2404 # get the release name
2405 return if ($have_version);
2406 doprint "$make kernelrelease ... ";
2407 $version = `$make -s kernelrelease | tail -1`;
2408 chomp($version);
2409 doprint "$version\n";
2410 $have_version = 1;
2411}
2412
2413sub start_monitor_and_install {
2414 # Make sure the stable kernel has finished booting
2415
2416 # Install bisects, don't need console
2417 if (defined $console) {
2418 start_monitor;
2419 wait_for_monitor 5;
2420 end_monitor;
2421 }
2422
2423 get_grub_index;
2424 get_version;
2425 install;
2426
2427 start_monitor if (defined $console);
2428 return monitor;
2429}
2430
2431sub process_warning_line {
2432 my ($line) = @_;
2433
2434 chomp $line;
2435
2436 # for distcc heterogeneous systems, some compilers
2437 # do things differently causing warning lines
2438 # to be slightly different. This makes an attempt
2439 # to fixe those issues.
2440
2441 # chop off the index into the line
2442 # using distcc, some compilers give different indexes
2443 # depending on white space
2444 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2445
2446 # Some compilers use UTF-8 extended for quotes and some don't.
2447 $line =~ s/$utf8_quote/'/g;
2448
2449 return $line;
2450}
2451
2452# Read buildlog and check against warnings file for any
2453# new warnings.
2454#
2455# Returns 1 if OK
2456# 0 otherwise
2457sub check_buildlog {
2458 return 1 if (!defined $warnings_file);
2459
2460 my %warnings_list;
2461
2462 # Failed builds should not reboot the target
2463 my $save_no_reboot = $no_reboot;
2464 $no_reboot = 1;
2465
2466 if (-f $warnings_file) {
2467 open(IN, $warnings_file) or
2468 dodie "Error opening $warnings_file";
2469
2470 while (<IN>) {
2471 if (/$check_build_re/) {
2472 my $warning = process_warning_line $_;
2473
2474 $warnings_list{$warning} = 1;
2475 }
2476 }
2477 close(IN);
2478 }
2479
2480 # If warnings file didn't exist, and WARNINGS_FILE exist,
2481 # then we fail on any warning!
2482
2483 open(IN, $buildlog) or dodie "Can't open $buildlog";
2484 while (<IN>) {
2485 if (/$check_build_re/) {
2486 my $warning = process_warning_line $_;
2487
2488 if (!defined $warnings_list{$warning}) {
2489 fail "New warning found (not in $warnings_file)\n$_\n";
2490 $no_reboot = $save_no_reboot;
2491 return 0;
2492 }
2493 }
2494 }
2495 $no_reboot = $save_no_reboot;
2496 close(IN);
2497}
2498
2499sub check_patch_buildlog {
2500 my ($patch) = @_;
2501
2502 my @files = `git show $patch | diffstat -l`;
2503
2504 foreach my $file (@files) {
2505 chomp $file;
2506 }
2507
2508 open(IN, "git show $patch |") or
2509 dodie "failed to show $patch";
2510 while (<IN>) {
2511 if (m,^--- a/(.*),) {
2512 chomp $1;
2513 $files[$#files] = $1;
2514 }
2515 }
2516 close(IN);
2517
2518 open(IN, $buildlog) or dodie "Can't open $buildlog";
2519 while (<IN>) {
2520 if (/^\s*(.*?):.*(warning|error)/) {
2521 my $err = $1;
2522 foreach my $file (@files) {
2523 my $fullpath = "$builddir/$file";
2524 if ($file eq $err || $fullpath eq $err) {
2525 fail "$file built with warnings" and return 0;
2526 }
2527 }
2528 }
2529 }
2530 close(IN);
2531
2532 return 1;
2533}
2534
2535sub apply_min_config {
2536 my $outconfig = "$output_config.new";
2537
2538 # Read the config file and remove anything that
2539 # is in the force_config hash (from minconfig and others)
2540 # then add the force config back.
2541
2542 doprint "Applying minimum configurations into $output_config.new\n";
2543
2544 open (OUT, ">$outconfig") or
2545 dodie "Can't create $outconfig";
2546
2547 if (-f $output_config) {
2548 open (IN, $output_config) or
2549 dodie "Failed to open $output_config";
2550 while (<IN>) {
2551 if (/^(# )?(CONFIG_[^\s=]*)/) {
2552 next if (defined($force_config{$2}));
2553 }
2554 print OUT;
2555 }
2556 close IN;
2557 }
2558 foreach my $config (keys %force_config) {
2559 print OUT "$force_config{$config}\n";
2560 }
2561 close OUT;
2562
2563 run_command "mv $outconfig $output_config";
2564}
2565
2566sub make_oldconfig {
2567
2568 my @force_list = keys %force_config;
2569
2570 if ($#force_list >= 0) {
2571 apply_min_config;
2572 }
2573
2574 if (!run_command "$make olddefconfig") {
2575 # Perhaps olddefconfig doesn't exist in this version of the kernel
2576 # try oldnoconfig
2577 doprint "olddefconfig failed, trying make oldnoconfig\n";
2578 if (!run_command "$make oldnoconfig") {
2579 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2580 # try a yes '' | oldconfig
2581 run_command "yes '' | $make oldconfig" or
2582 dodie "failed make config oldconfig";
2583 }
2584 }
2585}
2586
2587# read a config file and use this to force new configs.
2588sub load_force_config {
2589 my ($config) = @_;
2590
2591 doprint "Loading force configs from $config\n";
2592 open(IN, $config) or
2593 dodie "failed to read $config";
2594 while (<IN>) {
2595 chomp;
2596 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2597 $force_config{$1} = $_;
2598 } elsif (/^# (CONFIG_\S*) is not set/) {
2599 $force_config{$1} = $_;
2600 }
2601 }
2602 close IN;
2603}
2604
2605sub build {
2606 my ($type) = @_;
2607
2608 unlink $buildlog;
2609
2610 my $start_time = time;
2611
2612 # Failed builds should not reboot the target
2613 my $save_no_reboot = $no_reboot;
2614 $no_reboot = 1;
2615
2616 # Calculate a new version from here.
2617 $have_version = 0;
2618
2619 if (defined($pre_build)) {
2620 my $ret = run_command $pre_build;
2621 if (!$ret && defined($pre_build_die) &&
2622 $pre_build_die) {
2623 dodie "failed to pre_build\n";
2624 }
2625 }
2626
2627 if ($type =~ /^useconfig:(.*)/) {
2628 run_command "cp $1 $output_config" or
2629 dodie "could not copy $1 to .config";
2630
2631 $type = "oldconfig";
2632 }
2633
2634 # old config can ask questions
2635 if ($type eq "oldconfig") {
2636 $type = "olddefconfig";
2637
2638 # allow for empty configs
2639 run_command "touch $output_config";
2640
2641 if (!$noclean) {
2642 run_command "mv $output_config $outputdir/config_temp" or
2643 dodie "moving .config";
2644
2645 run_command "$make mrproper" or dodie "make mrproper";
2646
2647 run_command "mv $outputdir/config_temp $output_config" or
2648 dodie "moving config_temp";
2649 }
2650 } elsif (!$noclean) {
2651 unlink "$output_config";
2652 run_command "$make mrproper" or
2653 dodie "make mrproper";
2654 }
2655
2656 # add something to distinguish this build
2657 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2658 print OUT "$localversion\n";
2659 close(OUT);
2660
2661 if (defined($minconfig)) {
2662 load_force_config($minconfig);
2663 }
2664
2665 if ($type ne "olddefconfig") {
2666 run_command "$make $type" or
2667 dodie "failed make config";
2668 }
2669 # Run old config regardless, to enforce min configurations
2670 make_oldconfig;
2671
2672 if (not defined($build_options)){
2673 $build_options = "";
2674 }
2675 my $build_ret = run_command "$make $build_options", $buildlog;
2676
2677 if (defined($post_build)) {
2678 # Because a post build may change the kernel version
2679 # do it now.
2680 get_version;
2681 my $ret = run_command $post_build;
2682 if (!$ret && defined($post_build_die) &&
2683 $post_build_die) {
2684 dodie "failed to post_build\n";
2685 }
2686 }
2687
2688 if (!$build_ret) {
2689 # bisect may need this to pass
2690 if ($in_bisect) {
2691 $no_reboot = $save_no_reboot;
2692 return 0;
2693 }
2694 fail "failed build" and return 0;
2695 }
2696
2697 $no_reboot = $save_no_reboot;
2698
2699 my $end_time = time;
2700 $build_time = $end_time - $start_time;
2701
2702 return 1;
2703}
2704
2705sub halt {
2706 if (!run_ssh "halt" or defined($power_off)) {
2707 if (defined($poweroff_after_halt)) {
2708 sleep $poweroff_after_halt;
2709 run_command "$power_off";
2710 }
2711 } else {
2712 # nope? the zap it!
2713 run_command "$power_off";
2714 }
2715}
2716
2717sub success {
2718 my ($i) = @_;
2719
2720 $successes++;
2721
2722 my $name = "";
2723
2724 if (defined($test_name)) {
2725 $name = " ($test_name)";
2726 }
2727
2728 print_times;
2729
2730 doprint "\n\n";
2731 doprint "*******************************************\n";
2732 doprint "*******************************************\n";
2733 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2734 doprint "*******************************************\n";
2735 doprint "*******************************************\n";
2736
2737 if (defined($store_successes)) {
2738 save_logs "success", $store_successes;
2739 }
2740
2741 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2742 doprint "Reboot and wait $sleep_time seconds\n";
2743 reboot_to_good $sleep_time;
2744 }
2745
2746 if (defined($post_test)) {
2747 run_command $post_test;
2748 }
2749}
2750
2751sub answer_bisect {
2752 for (;;) {
2753 doprint "Pass, fail, or skip? [p/f/s]";
2754 my $ans = <STDIN>;
2755 chomp $ans;
2756 if ($ans eq "p" || $ans eq "P") {
2757 return 1;
2758 } elsif ($ans eq "f" || $ans eq "F") {
2759 return 0;
2760 } elsif ($ans eq "s" || $ans eq "S") {
2761 return -1;
2762 } else {
2763 print "Please answer 'p', 'f', or 's'\n";
2764 }
2765 }
2766}
2767
2768sub child_run_test {
2769
2770 # child should have no power
2771 $reboot_on_error = 0;
2772 $poweroff_on_error = 0;
2773 $die_on_failure = 1;
2774
2775 run_command $run_test, $testlog;
2776
2777 exit $run_command_status;
2778}
2779
2780sub child_finished {
2781 $child_done = 1;
2782}
2783
2784sub do_run_test {
2785 my $child_pid;
2786 my $child_exit;
2787 my $line;
2788 my $full_line;
2789 my $bug = 0;
2790 my $bug_ignored = 0;
2791
2792 my $start_time = time;
2793
2794 wait_for_monitor 1;
2795
2796 doprint "run test $run_test\n";
2797
2798 $child_done = 0;
2799
2800 $SIG{CHLD} = qw(child_finished);
2801
2802 $child_pid = fork;
2803
2804 child_run_test if (!$child_pid);
2805
2806 $full_line = "";
2807
2808 do {
2809 $line = wait_for_input($monitor_fp, 1);
2810 if (defined($line)) {
2811
2812 # we are not guaranteed to get a full line
2813 $full_line .= $line;
2814 doprint $line;
2815
2816 if ($full_line =~ /call trace:/i) {
2817 if ($ignore_errors) {
2818 $bug_ignored = 1;
2819 } else {
2820 $bug = 1;
2821 }
2822 }
2823
2824 if ($full_line =~ /Kernel panic -/) {
2825 $bug = 1;
2826 }
2827
2828 if ($line =~ /\n/) {
2829 $full_line = "";
2830 }
2831 }
2832 } while (!$child_done && !$bug);
2833
2834 if (!$bug && $bug_ignored) {
2835 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2836 }
2837
2838 if ($bug) {
2839 my $failure_start = time;
2840 my $now;
2841 do {
2842 $line = wait_for_input($monitor_fp, 1);
2843 if (defined($line)) {
2844 doprint $line;
2845 }
2846 $now = time;
2847 if ($now - $failure_start >= $stop_after_failure) {
2848 last;
2849 }
2850 } while (defined($line));
2851
2852 doprint "Detected kernel crash!\n";
2853 # kill the child with extreme prejudice
2854 kill 9, $child_pid;
2855 }
2856
2857 waitpid $child_pid, 0;
2858 $child_exit = $? >> 8;
2859
2860 my $end_time = time;
2861 $test_time = $end_time - $start_time;
2862
2863 if (!$bug && $in_bisect) {
2864 if (defined($bisect_ret_good)) {
2865 if ($child_exit == $bisect_ret_good) {
2866 return 1;
2867 }
2868 }
2869 if (defined($bisect_ret_skip)) {
2870 if ($child_exit == $bisect_ret_skip) {
2871 return -1;
2872 }
2873 }
2874 if (defined($bisect_ret_abort)) {
2875 if ($child_exit == $bisect_ret_abort) {
2876 fail "test abort" and return -2;
2877 }
2878 }
2879 if (defined($bisect_ret_bad)) {
2880 if ($child_exit == $bisect_ret_skip) {
2881 return 0;
2882 }
2883 }
2884 if (defined($bisect_ret_default)) {
2885 if ($bisect_ret_default eq "good") {
2886 return 1;
2887 } elsif ($bisect_ret_default eq "bad") {
2888 return 0;
2889 } elsif ($bisect_ret_default eq "skip") {
2890 return -1;
2891 } elsif ($bisect_ret_default eq "abort") {
2892 return -2;
2893 } else {
2894 fail "unknown default action: $bisect_ret_default"
2895 and return -2;
2896 }
2897 }
2898 }
2899
2900 if ($bug || $child_exit) {
2901 return 0 if $in_bisect;
2902 fail "test failed" and return 0;
2903 }
2904 return 1;
2905}
2906
2907sub run_git_bisect {
2908 my ($command) = @_;
2909
2910 doprint "$command ... ";
2911
2912 my $output = `$command 2>&1`;
2913 my $ret = $?;
2914
2915 logit $output;
2916
2917 if ($ret) {
2918 doprint "FAILED\n";
2919 dodie "Failed to git bisect";
2920 }
2921
2922 doprint "SUCCESS\n";
2923 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2924 doprint "$1 [$2]\n";
2925 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2926 $bisect_bad_commit = $1;
2927 doprint "Found bad commit... $1\n";
2928 return 0;
2929 } else {
2930 # we already logged it, just print it now.
2931 print $output;
2932 }
2933
2934 return 1;
2935}
2936
2937sub bisect_reboot {
2938 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2939 reboot_to_good $bisect_sleep_time;
2940}
2941
2942# returns 1 on success, 0 on failure, -1 on skip
2943sub run_bisect_test {
2944 my ($type, $buildtype) = @_;
2945
2946 my $failed = 0;
2947 my $result;
2948 my $output;
2949 my $ret;
2950
2951 $in_bisect = 1;
2952
2953 build $buildtype or $failed = 1;
2954
2955 if ($type ne "build") {
2956 if ($failed && $bisect_skip) {
2957 $in_bisect = 0;
2958 return -1;
2959 }
2960 dodie "Failed on build" if $failed;
2961
2962 # Now boot the box
2963 start_monitor_and_install or $failed = 1;
2964
2965 if ($type ne "boot") {
2966 if ($failed && $bisect_skip) {
2967 end_monitor;
2968 bisect_reboot;
2969 $in_bisect = 0;
2970 return -1;
2971 }
2972 dodie "Failed on boot" if $failed;
2973
2974 do_run_test or $failed = 1;
2975 }
2976 end_monitor;
2977 }
2978
2979 if ($failed) {
2980 $result = 0;
2981 } else {
2982 $result = 1;
2983 }
2984
2985 # reboot the box to a kernel we can ssh to
2986 if ($type ne "build") {
2987 bisect_reboot;
2988 }
2989 $in_bisect = 0;
2990
2991 return $result;
2992}
2993
2994sub run_bisect {
2995 my ($type) = @_;
2996 my $buildtype = "oldconfig";
2997
2998 # We should have a minconfig to use?
2999 if (defined($minconfig)) {
3000 $buildtype = "useconfig:$minconfig";
3001 }
3002
3003 # If the user sets bisect_tries to less than 1, then no tries
3004 # is a success.
3005 my $ret = 1;
3006
3007 # Still let the user manually decide that though.
3008 if ($bisect_tries < 1 && $bisect_manual) {
3009 $ret = answer_bisect;
3010 }
3011
3012 for (my $i = 0; $i < $bisect_tries; $i++) {
3013 if ($bisect_tries > 1) {
3014 my $t = $i + 1;
3015 doprint("Running bisect trial $t of $bisect_tries:\n");
3016 }
3017 $ret = run_bisect_test $type, $buildtype;
3018
3019 if ($bisect_manual) {
3020 $ret = answer_bisect;
3021 }
3022
3023 last if (!$ret);
3024 }
3025
3026 # Are we looking for where it worked, not failed?
3027 if ($reverse_bisect && $ret >= 0) {
3028 $ret = !$ret;
3029 }
3030
3031 if ($ret > 0) {
3032 return "good";
3033 } elsif ($ret == 0) {
3034 return "bad";
3035 } elsif ($bisect_skip) {
3036 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3037 return "skip";
3038 }
3039}
3040
3041sub update_bisect_replay {
3042 my $tmp_log = "$tmpdir/ktest_bisect_log";
3043 run_command "git bisect log > $tmp_log" or
3044 dodie "can't create bisect log";
3045 return $tmp_log;
3046}
3047
3048sub bisect {
3049 my ($i) = @_;
3050
3051 my $result;
3052
3053 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3054 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3055 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3056
3057 my $good = $bisect_good;
3058 my $bad = $bisect_bad;
3059 my $type = $bisect_type;
3060 my $start = $bisect_start;
3061 my $replay = $bisect_replay;
3062 my $start_files = $bisect_files;
3063
3064 if (defined($start_files)) {
3065 $start_files = " -- " . $start_files;
3066 } else {
3067 $start_files = "";
3068 }
3069
3070 # convert to true sha1's
3071 $good = get_sha1($good);
3072 $bad = get_sha1($bad);
3073
3074 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3075 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3076 $reverse_bisect = 1;
3077 } else {
3078 $reverse_bisect = 0;
3079 }
3080
3081 # Can't have a test without having a test to run
3082 if ($type eq "test" && !defined($run_test)) {
3083 $type = "boot";
3084 }
3085
3086 # Check if a bisect was running
3087 my $bisect_start_file = "$builddir/.git/BISECT_START";
3088
3089 my $check = $bisect_check;
3090 my $do_check = defined($check) && $check ne "0";
3091
3092 if ( -f $bisect_start_file ) {
3093 print "Bisect in progress found\n";
3094 if ($do_check) {
3095 print " If you say yes, then no checks of good or bad will be done\n";
3096 }
3097 if (defined($replay)) {
3098 print "** BISECT_REPLAY is defined in config file **";
3099 print " Ignore config option and perform new git bisect log?\n";
3100 if (read_ync " (yes, no, or cancel) ") {
3101 $replay = update_bisect_replay;
3102 $do_check = 0;
3103 }
3104 } elsif (read_yn "read git log and continue?") {
3105 $replay = update_bisect_replay;
3106 $do_check = 0;
3107 }
3108 }
3109
3110 if ($do_check) {
3111 # get current HEAD
3112 my $head = get_sha1("HEAD");
3113
3114 if ($check ne "good") {
3115 doprint "TESTING BISECT BAD [$bad]\n";
3116 run_command "git checkout $bad" or
3117 dodie "Failed to checkout $bad";
3118
3119 $result = run_bisect $type;
3120
3121 if ($result ne "bad") {
3122 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3123 }
3124 }
3125
3126 if ($check ne "bad") {
3127 doprint "TESTING BISECT GOOD [$good]\n";
3128 run_command "git checkout $good" or
3129 dodie "Failed to checkout $good";
3130
3131 $result = run_bisect $type;
3132
3133 if ($result ne "good") {
3134 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3135 }
3136 }
3137
3138 # checkout where we started
3139 run_command "git checkout $head" or
3140 dodie "Failed to checkout $head";
3141 }
3142
3143 run_command "git bisect start$start_files" or
3144 dodie "could not start bisect";
3145
3146 if (defined($replay)) {
3147 run_command "git bisect replay $replay" or
3148 dodie "failed to run replay";
3149 } else {
3150 run_command "git bisect good $good" or
3151 dodie "could not set bisect good to $good";
3152
3153 run_git_bisect "git bisect bad $bad" or
3154 dodie "could not set bisect bad to $bad";
3155 }
3156
3157 if (defined($start)) {
3158 run_command "git checkout $start" or
3159 dodie "failed to checkout $start";
3160 }
3161
3162 my $test;
3163 do {
3164 $result = run_bisect $type;
3165 $test = run_git_bisect "git bisect $result";
3166 print_times;
3167 } while ($test);
3168
3169 run_command "git bisect log" or
3170 dodie "could not capture git bisect log";
3171
3172 run_command "git bisect reset" or
3173 dodie "could not reset git bisect";
3174
3175 doprint "Bad commit was [$bisect_bad_commit]\n";
3176
3177 success $i;
3178}
3179
3180sub assign_configs {
3181 my ($hash, $config) = @_;
3182
3183 doprint "Reading configs from $config\n";
3184
3185 open (IN, $config) or
3186 dodie "Failed to read $config";
3187
3188 while (<IN>) {
3189 chomp;
3190 if (/^((CONFIG\S*)=.*)/) {
3191 ${$hash}{$2} = $1;
3192 } elsif (/^(# (CONFIG\S*) is not set)/) {
3193 ${$hash}{$2} = $1;
3194 }
3195 }
3196
3197 close(IN);
3198}
3199
3200sub process_config_ignore {
3201 my ($config) = @_;
3202
3203 assign_configs \%config_ignore, $config;
3204}
3205
3206sub get_dependencies {
3207 my ($config) = @_;
3208
3209 my $arr = $dependency{$config};
3210 if (!defined($arr)) {
3211 return ();
3212 }
3213
3214 my @deps = @{$arr};
3215
3216 foreach my $dep (@{$arr}) {
3217 print "ADD DEP $dep\n";
3218 @deps = (@deps, get_dependencies $dep);
3219 }
3220
3221 return @deps;
3222}
3223
3224sub save_config {
3225 my ($pc, $file) = @_;
3226
3227 my %configs = %{$pc};
3228
3229 doprint "Saving configs into $file\n";
3230
3231 open(OUT, ">$file") or dodie "Can not write to $file";
3232
3233 foreach my $config (keys %configs) {
3234 print OUT "$configs{$config}\n";
3235 }
3236 close(OUT);
3237}
3238
3239sub create_config {
3240 my ($name, $pc) = @_;
3241
3242 doprint "Creating old config from $name configs\n";
3243
3244 save_config $pc, $output_config;
3245
3246 make_oldconfig;
3247}
3248
3249sub run_config_bisect_test {
3250 my ($type) = @_;
3251
3252 my $ret = run_bisect_test $type, "oldconfig";
3253
3254 if ($bisect_manual) {
3255 $ret = answer_bisect;
3256 }
3257
3258 return $ret;
3259}
3260
3261sub config_bisect_end {
3262 my ($good, $bad) = @_;
3263 my $diffexec = "diff -u";
3264
3265 if (-f "$builddir/scripts/diffconfig") {
3266 $diffexec = "$builddir/scripts/diffconfig";
3267 }
3268 doprint "\n\n***************************************\n";
3269 doprint "No more config bisecting possible.\n";
3270 run_command "$diffexec $good $bad", 1;
3271 doprint "***************************************\n\n";
3272}
3273
3274sub run_config_bisect {
3275 my ($good, $bad, $last_result) = @_;
3276 my $reset = "";
3277 my $cmd;
3278 my $ret;
3279
3280 if (!length($last_result)) {
3281 $reset = "-r";
3282 }
3283 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3284
3285 # config-bisect returns:
3286 # 0 if there is more to bisect
3287 # 1 for finding a good config
3288 # 2 if it can not find any more configs
3289 # -1 (255) on error
3290 if ($run_command_status) {
3291 return $run_command_status;
3292 }
3293
3294 $ret = run_config_bisect_test $config_bisect_type;
3295 if ($ret) {
3296 doprint "NEW GOOD CONFIG ($pass)\n";
3297 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3298 $pass++;
3299 # Return 3 for good config
3300 return 3;
3301 } else {
3302 doprint "NEW BAD CONFIG ($pass)\n";
3303 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3304 $pass++;
3305 # Return 4 for bad config
3306 return 4;
3307 }
3308}
3309
3310sub config_bisect {
3311 my ($i) = @_;
3312
3313 my $good_config;
3314 my $bad_config;
3315
3316 my $type = $config_bisect_type;
3317 my $ret;
3318
3319 $bad_config = $config_bisect;
3320
3321 if (defined($config_bisect_good)) {
3322 $good_config = $config_bisect_good;
3323 } elsif (defined($minconfig)) {
3324 $good_config = $minconfig;
3325 } else {
3326 doprint "No config specified, checking if defconfig works";
3327 $ret = run_bisect_test $type, "defconfig";
3328 if (!$ret) {
3329 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3330 return 1;
3331 }
3332 $good_config = $output_config;
3333 }
3334
3335 if (!defined($config_bisect_exec)) {
3336 # First check the location that ktest.pl ran
3337 my @locations = (
3338 "$pwd/config-bisect.pl",
3339 "$dirname/config-bisect.pl",
3340 "$builddir/tools/testing/ktest/config-bisect.pl",
3341 undef );
3342 foreach my $loc (@locations) {
3343 doprint "loc = $loc\n";
3344 $config_bisect_exec = $loc;
3345 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3346 }
3347 if (!defined($config_bisect_exec)) {
3348 fail "Could not find an executable config-bisect.pl\n",
3349 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3350 return 1;
3351 }
3352 }
3353
3354 # we don't want min configs to cause issues here.
3355 doprint "Disabling 'MIN_CONFIG' for this test\n";
3356 undef $minconfig;
3357
3358 my %good_configs;
3359 my %bad_configs;
3360 my %tmp_configs;
3361
3362 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3363 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3364 if (-f "$tmpdir/good_config.tmp") {
3365 $good_config = "$tmpdir/good_config.tmp";
3366 } else {
3367 $good_config = "$tmpdir/good_config";
3368 }
3369 if (-f "$tmpdir/bad_config.tmp") {
3370 $bad_config = "$tmpdir/bad_config.tmp";
3371 } else {
3372 $bad_config = "$tmpdir/bad_config";
3373 }
3374 }
3375 }
3376 doprint "Run good configs through make oldconfig\n";
3377 assign_configs \%tmp_configs, $good_config;
3378 create_config "$good_config", \%tmp_configs;
3379 $good_config = "$tmpdir/good_config";
3380 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3381
3382 doprint "Run bad configs through make oldconfig\n";
3383 assign_configs \%tmp_configs, $bad_config;
3384 create_config "$bad_config", \%tmp_configs;
3385 $bad_config = "$tmpdir/bad_config";
3386 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3387
3388 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3389 if ($config_bisect_check ne "good") {
3390 doprint "Testing bad config\n";
3391
3392 $ret = run_bisect_test $type, "useconfig:$bad_config";
3393 if ($ret) {
3394 fail "Bad config succeeded when expected to fail!";
3395 return 0;
3396 }
3397 }
3398 if ($config_bisect_check ne "bad") {
3399 doprint "Testing good config\n";
3400
3401 $ret = run_bisect_test $type, "useconfig:$good_config";
3402 if (!$ret) {
3403 fail "Good config failed when expected to succeed!";
3404 return 0;
3405 }
3406 }
3407 }
3408
3409 my $last_run = "";
3410
3411 do {
3412 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3413 if ($ret == 3) {
3414 $last_run = "good";
3415 } elsif ($ret == 4) {
3416 $last_run = "bad";
3417 }
3418 print_times;
3419 } while ($ret == 3 || $ret == 4);
3420
3421 if ($ret == 2) {
3422 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3423 }
3424
3425 return $ret if ($ret < 0);
3426
3427 success $i;
3428}
3429
3430sub patchcheck_reboot {
3431 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3432 reboot_to_good $patchcheck_sleep_time;
3433}
3434
3435sub patchcheck {
3436 my ($i) = @_;
3437
3438 dodie "PATCHCHECK_START[$i] not defined\n"
3439 if (!defined($patchcheck_start));
3440 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3441 if (!defined($patchcheck_type));
3442
3443 my $start = $patchcheck_start;
3444
3445 my $cherry = $patchcheck_cherry;
3446 if (!defined($cherry)) {
3447 $cherry = 0;
3448 }
3449
3450 my $end = "HEAD";
3451 if (defined($patchcheck_end)) {
3452 $end = $patchcheck_end;
3453 } elsif ($cherry) {
3454 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3455 }
3456
3457 # Get the true sha1's since we can use things like HEAD~3
3458 $start = get_sha1($start);
3459 $end = get_sha1($end);
3460
3461 my $type = $patchcheck_type;
3462
3463 # Can't have a test without having a test to run
3464 if ($type eq "test" && !defined($run_test)) {
3465 $type = "boot";
3466 }
3467
3468 if ($cherry) {
3469 open (IN, "git cherry -v $start $end|") or
3470 dodie "could not get git list";
3471 } else {
3472 open (IN, "git log --pretty=oneline $end|") or
3473 dodie "could not get git list";
3474 }
3475
3476 my @list;
3477
3478 while (<IN>) {
3479 chomp;
3480 # git cherry adds a '+' we want to remove
3481 s/^\+ //;
3482 $list[$#list+1] = $_;
3483 last if (/^$start/);
3484 }
3485 close(IN);
3486
3487 if (!$cherry) {
3488 if ($list[$#list] !~ /^$start/) {
3489 fail "SHA1 $start not found";
3490 }
3491
3492 # go backwards in the list
3493 @list = reverse @list;
3494 }
3495
3496 doprint("Going to test the following commits:\n");
3497 foreach my $l (@list) {
3498 doprint "$l\n";
3499 }
3500
3501 my $save_clean = $noclean;
3502 my %ignored_warnings;
3503
3504 if (defined($ignore_warnings)) {
3505 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3506 $ignored_warnings{$sha1} = 1;
3507 }
3508 }
3509
3510 $in_patchcheck = 1;
3511 foreach my $item (@list) {
3512 my $sha1 = $item;
3513 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3514
3515 doprint "\nProcessing commit \"$item\"\n\n";
3516
3517 run_command "git checkout $sha1" or
3518 dodie "Failed to checkout $sha1";
3519
3520 # only clean on the first and last patch
3521 if ($item eq $list[0] ||
3522 $item eq $list[$#list]) {
3523 $noclean = $save_clean;
3524 } else {
3525 $noclean = 1;
3526 }
3527
3528 if (defined($minconfig)) {
3529 build "useconfig:$minconfig" or return 0;
3530 } else {
3531 # ?? no config to use?
3532 build "oldconfig" or return 0;
3533 }
3534
3535 # No need to do per patch checking if warnings file exists
3536 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3537 check_patch_buildlog $sha1 or return 0;
3538 }
3539
3540 check_buildlog or return 0;
3541
3542 next if ($type eq "build");
3543
3544 my $failed = 0;
3545
3546 start_monitor_and_install or $failed = 1;
3547
3548 if (!$failed && $type ne "boot"){
3549 do_run_test or $failed = 1;
3550 }
3551 end_monitor;
3552 if ($failed) {
3553 print_times;
3554 return 0;
3555 }
3556 patchcheck_reboot;
3557 print_times;
3558 }
3559 $in_patchcheck = 0;
3560 success $i;
3561
3562 return 1;
3563}
3564
3565sub add_dep {
3566 # $config depends on $dep
3567 my ($config, $dep) = @_;
3568
3569 if (defined($depends{$config})) {
3570 $depends{$config} .= " " . $dep;
3571 } else {
3572 $depends{$config} = $dep;
3573 }
3574
3575 # record the number of configs depending on $dep
3576 if (defined $depcount{$dep}) {
3577 $depcount{$dep}++;
3578 } else {
3579 $depcount{$dep} = 1;
3580 }
3581}
3582
3583# taken from streamline_config.pl
3584sub read_kconfig {
3585 my ($kconfig) = @_;
3586
3587 my $state = "NONE";
3588 my $config;
3589 my @kconfigs;
3590
3591 my $cont = 0;
3592 my $line;
3593
3594 if (! -f $kconfig) {
3595 doprint "file $kconfig does not exist, skipping\n";
3596 return;
3597 }
3598
3599 open(KIN, "$kconfig")
3600 or dodie "Can't open $kconfig";
3601 while (<KIN>) {
3602 chomp;
3603
3604 # Make sure that lines ending with \ continue
3605 if ($cont) {
3606 $_ = $line . " " . $_;
3607 }
3608
3609 if (s/\\$//) {
3610 $cont = 1;
3611 $line = $_;
3612 next;
3613 }
3614
3615 $cont = 0;
3616
3617 # collect any Kconfig sources
3618 if (/^source\s*"(.*)"/) {
3619 $kconfigs[$#kconfigs+1] = $1;
3620 }
3621
3622 # configs found
3623 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3624 $state = "NEW";
3625 $config = $2;
3626
3627 for (my $i = 0; $i < $iflevel; $i++) {
3628 add_dep $config, $ifdeps[$i];
3629 }
3630
3631 # collect the depends for the config
3632 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3633
3634 add_dep $config, $1;
3635
3636 # Get the configs that select this config
3637 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3638
3639 # selected by depends on config
3640 add_dep $1, $config;
3641
3642 # Check for if statements
3643 } elsif (/^if\s+(.*\S)\s*$/) {
3644 my $deps = $1;
3645 # remove beginning and ending non text
3646 $deps =~ s/^[^a-zA-Z0-9_]*//;
3647 $deps =~ s/[^a-zA-Z0-9_]*$//;
3648
3649 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3650
3651 $ifdeps[$iflevel++] = join ':', @deps;
3652
3653 } elsif (/^endif/) {
3654
3655 $iflevel-- if ($iflevel);
3656
3657 # stop on "help"
3658 } elsif (/^\s*help\s*$/) {
3659 $state = "NONE";
3660 }
3661 }
3662 close(KIN);
3663
3664 # read in any configs that were found.
3665 foreach $kconfig (@kconfigs) {
3666 if (!defined($read_kconfigs{$kconfig})) {
3667 $read_kconfigs{$kconfig} = 1;
3668 read_kconfig("$builddir/$kconfig");
3669 }
3670 }
3671}
3672
3673sub read_depends {
3674 # find out which arch this is by the kconfig file
3675 open (IN, $output_config) or
3676 dodie "Failed to read $output_config";
3677 my $arch;
3678 while (<IN>) {
3679 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3680 $arch = $1;
3681 last;
3682 }
3683 }
3684 close IN;
3685
3686 if (!defined($arch)) {
3687 doprint "Could not find arch from config file\n";
3688 doprint "no dependencies used\n";
3689 return;
3690 }
3691
3692 # arch is really the subarch, we need to know
3693 # what directory to look at.
3694 if ($arch eq "i386" || $arch eq "x86_64") {
3695 $arch = "x86";
3696 }
3697
3698 my $kconfig = "$builddir/arch/$arch/Kconfig";
3699
3700 if (! -f $kconfig && $arch =~ /\d$/) {
3701 my $orig = $arch;
3702 # some subarchs have numbers, truncate them
3703 $arch =~ s/\d*$//;
3704 $kconfig = "$builddir/arch/$arch/Kconfig";
3705 if (! -f $kconfig) {
3706 doprint "No idea what arch dir $orig is for\n";
3707 doprint "no dependencies used\n";
3708 return;
3709 }
3710 }
3711
3712 read_kconfig($kconfig);
3713}
3714
3715sub make_new_config {
3716 my @configs = @_;
3717
3718 open (OUT, ">$output_config")
3719 or dodie "Failed to write $output_config";
3720
3721 foreach my $config (@configs) {
3722 print OUT "$config\n";
3723 }
3724 close OUT;
3725}
3726
3727sub chomp_config {
3728 my ($config) = @_;
3729
3730 $config =~ s/CONFIG_//;
3731
3732 return $config;
3733}
3734
3735sub get_depends {
3736 my ($dep) = @_;
3737
3738 my $kconfig = chomp_config $dep;
3739
3740 $dep = $depends{"$kconfig"};
3741
3742 # the dep string we have saves the dependencies as they
3743 # were found, including expressions like ! && ||. We
3744 # want to split this out into just an array of configs.
3745
3746 my $valid = "A-Za-z_0-9";
3747
3748 my @configs;
3749
3750 while ($dep =~ /[$valid]/) {
3751 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3752 my $conf = "CONFIG_" . $1;
3753
3754 $configs[$#configs + 1] = $conf;
3755
3756 $dep =~ s/^[^$valid]*[$valid]+//;
3757 } else {
3758 dodie "this should never happen";
3759 }
3760 }
3761
3762 return @configs;
3763}
3764
3765sub test_this_config {
3766 my ($config) = @_;
3767
3768 my $found;
3769
3770 # if we already processed this config, skip it
3771 if (defined($processed_configs{$config})) {
3772 return undef;
3773 }
3774 $processed_configs{$config} = 1;
3775
3776 # if this config failed during this round, skip it
3777 if (defined($nochange_config{$config})) {
3778 return undef;
3779 }
3780
3781 my $kconfig = chomp_config $config;
3782
3783 # Test dependencies first
3784 if (defined($depends{"$kconfig"})) {
3785 my @parents = get_depends $config;
3786 foreach my $parent (@parents) {
3787 # if the parent is in the min config, check it first
3788 next if (!defined($min_configs{$parent}));
3789 $found = test_this_config($parent);
3790 if (defined($found)) {
3791 return $found;
3792 }
3793 }
3794 }
3795
3796 # Remove this config from the list of configs
3797 # do a make olddefconfig and then read the resulting
3798 # .config to make sure it is missing the config that
3799 # we had before
3800 my %configs = %min_configs;
3801 $configs{$config} = "# $config is not set";
3802 make_new_config ((values %configs), (values %keep_configs));
3803 make_oldconfig;
3804 delete $configs{$config};
3805 undef %configs;
3806 assign_configs \%configs, $output_config;
3807
3808 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3809 return $config;
3810 }
3811
3812 doprint "disabling config $config did not change .config\n";
3813
3814 $nochange_config{$config} = 1;
3815
3816 return undef;
3817}
3818
3819sub make_min_config {
3820 my ($i) = @_;
3821
3822 my $type = $minconfig_type;
3823 if ($type ne "boot" && $type ne "test") {
3824 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3825 " make_min_config works only with 'boot' and 'test'\n" and return;
3826 }
3827
3828 if (!defined($output_minconfig)) {
3829 fail "OUTPUT_MIN_CONFIG not defined" and return;
3830 }
3831
3832 # If output_minconfig exists, and the start_minconfig
3833 # came from min_config, than ask if we should use
3834 # that instead.
3835 if (-f $output_minconfig && !$start_minconfig_defined) {
3836 print "$output_minconfig exists\n";
3837 if (!defined($use_output_minconfig)) {
3838 if (read_yn " Use it as minconfig?") {
3839 $start_minconfig = $output_minconfig;
3840 }
3841 } elsif ($use_output_minconfig > 0) {
3842 doprint "Using $output_minconfig as MIN_CONFIG\n";
3843 $start_minconfig = $output_minconfig;
3844 } else {
3845 doprint "Set to still use MIN_CONFIG as starting point\n";
3846 }
3847 }
3848
3849 if (!defined($start_minconfig)) {
3850 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3851 }
3852
3853 my $temp_config = "$tmpdir/temp_config";
3854
3855 # First things first. We build an allnoconfig to find
3856 # out what the defaults are that we can't touch.
3857 # Some are selections, but we really can't handle selections.
3858
3859 my $save_minconfig = $minconfig;
3860 undef $minconfig;
3861
3862 run_command "$make allnoconfig" or return 0;
3863
3864 read_depends;
3865
3866 process_config_ignore $output_config;
3867
3868 undef %save_configs;
3869 undef %min_configs;
3870
3871 if (defined($ignore_config)) {
3872 # make sure the file exists
3873 `touch $ignore_config`;
3874 assign_configs \%save_configs, $ignore_config;
3875 }
3876
3877 %keep_configs = %save_configs;
3878
3879 doprint "Load initial configs from $start_minconfig\n";
3880
3881 # Look at the current min configs, and save off all the
3882 # ones that were set via the allnoconfig
3883 assign_configs \%min_configs, $start_minconfig;
3884
3885 my @config_keys = keys %min_configs;
3886
3887 # All configs need a depcount
3888 foreach my $config (@config_keys) {
3889 my $kconfig = chomp_config $config;
3890 if (!defined $depcount{$kconfig}) {
3891 $depcount{$kconfig} = 0;
3892 }
3893 }
3894
3895 # Remove anything that was set by the make allnoconfig
3896 # we shouldn't need them as they get set for us anyway.
3897 foreach my $config (@config_keys) {
3898 # Remove anything in the ignore_config
3899 if (defined($keep_configs{$config})) {
3900 my $file = $ignore_config;
3901 $file =~ s,.*/(.*?)$,$1,;
3902 doprint "$config set by $file ... ignored\n";
3903 delete $min_configs{$config};
3904 next;
3905 }
3906 # But make sure the settings are the same. If a min config
3907 # sets a selection, we do not want to get rid of it if
3908 # it is not the same as what we have. Just move it into
3909 # the keep configs.
3910 if (defined($config_ignore{$config})) {
3911 if ($config_ignore{$config} ne $min_configs{$config}) {
3912 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3913 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3914 $keep_configs{$config} = $min_configs{$config};
3915 } else {
3916 doprint "$config set by allnoconfig ... ignored\n";
3917 }
3918 delete $min_configs{$config};
3919 }
3920 }
3921
3922 my $done = 0;
3923 my $take_two = 0;
3924
3925 while (!$done) {
3926 my $config;
3927 my $found;
3928
3929 # Now disable each config one by one and do a make oldconfig
3930 # till we find a config that changes our list.
3931
3932 my @test_configs = keys %min_configs;
3933
3934 # Sort keys by who is most dependent on
3935 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3936 @test_configs ;
3937
3938 # Put configs that did not modify the config at the end.
3939 my $reset = 1;
3940 for (my $i = 0; $i < $#test_configs; $i++) {
3941 if (!defined($nochange_config{$test_configs[0]})) {
3942 $reset = 0;
3943 last;
3944 }
3945 # This config didn't change the .config last time.
3946 # Place it at the end
3947 my $config = shift @test_configs;
3948 push @test_configs, $config;
3949 }
3950
3951 # if every test config has failed to modify the .config file
3952 # in the past, then reset and start over.
3953 if ($reset) {
3954 undef %nochange_config;
3955 }
3956
3957 undef %processed_configs;
3958
3959 foreach my $config (@test_configs) {
3960
3961 $found = test_this_config $config;
3962
3963 last if (defined($found));
3964
3965 # oh well, try another config
3966 }
3967
3968 if (!defined($found)) {
3969 # we could have failed due to the nochange_config hash
3970 # reset and try again
3971 if (!$take_two) {
3972 undef %nochange_config;
3973 $take_two = 1;
3974 next;
3975 }
3976 doprint "No more configs found that we can disable\n";
3977 $done = 1;
3978 last;
3979 }
3980 $take_two = 0;
3981
3982 $config = $found;
3983
3984 doprint "Test with $config disabled\n";
3985
3986 # set in_bisect to keep build and monitor from dieing
3987 $in_bisect = 1;
3988
3989 my $failed = 0;
3990 build "oldconfig" or $failed = 1;
3991 if (!$failed) {
3992 start_monitor_and_install or $failed = 1;
3993
3994 if ($type eq "test" && !$failed) {
3995 do_run_test or $failed = 1;
3996 }
3997
3998 end_monitor;
3999 }
4000
4001 $in_bisect = 0;
4002
4003 if ($failed) {
4004 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
4005 # this config is needed, add it to the ignore list.
4006 $keep_configs{$config} = $min_configs{$config};
4007 $save_configs{$config} = $min_configs{$config};
4008 delete $min_configs{$config};
4009
4010 # update new ignore configs
4011 if (defined($ignore_config)) {
4012 open (OUT, ">$temp_config") or
4013 dodie "Can't write to $temp_config";
4014 foreach my $config (keys %save_configs) {
4015 print OUT "$save_configs{$config}\n";
4016 }
4017 close OUT;
4018 run_command "mv $temp_config $ignore_config" or
4019 dodie "failed to copy update to $ignore_config";
4020 }
4021
4022 } else {
4023 # We booted without this config, remove it from the minconfigs.
4024 doprint "$config is not needed, disabling\n";
4025
4026 delete $min_configs{$config};
4027
4028 # Also disable anything that is not enabled in this config
4029 my %configs;
4030 assign_configs \%configs, $output_config;
4031 my @config_keys = keys %min_configs;
4032 foreach my $config (@config_keys) {
4033 if (!defined($configs{$config})) {
4034 doprint "$config is not set, disabling\n";
4035 delete $min_configs{$config};
4036 }
4037 }
4038
4039 # Save off all the current mandatory configs
4040 open (OUT, ">$temp_config") or
4041 dodie "Can't write to $temp_config";
4042 foreach my $config (keys %keep_configs) {
4043 print OUT "$keep_configs{$config}\n";
4044 }
4045 foreach my $config (keys %min_configs) {
4046 print OUT "$min_configs{$config}\n";
4047 }
4048 close OUT;
4049
4050 run_command "mv $temp_config $output_minconfig" or
4051 dodie "failed to copy update to $output_minconfig";
4052 }
4053
4054 doprint "Reboot and wait $sleep_time seconds\n";
4055 reboot_to_good $sleep_time;
4056 }
4057
4058 success $i;
4059 return 1;
4060}
4061
4062sub make_warnings_file {
4063 my ($i) = @_;
4064
4065 if (!defined($warnings_file)) {
4066 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4067 }
4068
4069 if ($build_type eq "nobuild") {
4070 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4071 }
4072
4073 build $build_type or dodie "Failed to build";
4074
4075 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4076
4077 open(IN, $buildlog) or dodie "Can't open $buildlog";
4078 while (<IN>) {
4079 # Some compilers use UTF-8 extended for quotes
4080 # for distcc heterogeneous systems, this causes issues
4081 s/$utf8_quote/'/g;
4082
4083 if (/$check_build_re/) {
4084 print OUT;
4085 }
4086 }
4087 close(IN);
4088
4089 close(OUT);
4090
4091 success $i;
4092}
4093
4094sub option_defined {
4095 my ($option) = @_;
4096
4097 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4098 return 1;
4099 }
4100
4101 return 0;
4102}
4103
4104sub __set_test_option {
4105 my ($name, $i) = @_;
4106
4107 my $option = "$name\[$i\]";
4108
4109 if (option_defined($option)) {
4110 return $opt{$option};
4111 }
4112
4113 foreach my $test (keys %repeat_tests) {
4114 if ($i >= $test &&
4115 $i < $test + $repeat_tests{$test}) {
4116 $option = "$name\[$test\]";
4117 if (option_defined($option)) {
4118 return $opt{$option};
4119 }
4120 }
4121 }
4122
4123 if (option_defined($name)) {
4124 return $opt{$name};
4125 }
4126
4127 return undef;
4128}
4129
4130sub set_test_option {
4131 my ($name, $i) = @_;
4132
4133 my $option = __set_test_option($name, $i);
4134 return $option if (!defined($option));
4135
4136 return eval_option($name, $option, $i);
4137}
4138
4139sub find_mailer {
4140 my ($mailer) = @_;
4141
4142 my @paths = split /:/, $ENV{PATH};
4143
4144 # sendmail is usually in /usr/sbin
4145 $paths[$#paths + 1] = "/usr/sbin";
4146
4147 foreach my $path (@paths) {
4148 if (-x "$path/$mailer") {
4149 return $path;
4150 }
4151 }
4152
4153 return undef;
4154}
4155
4156sub do_send_mail {
4157 my ($subject, $message, $file) = @_;
4158
4159 if (!defined($mail_path)) {
4160 # find the mailer
4161 $mail_path = find_mailer $mailer;
4162 if (!defined($mail_path)) {
4163 die "\nCan not find $mailer in PATH\n";
4164 }
4165 }
4166
4167 my $header_file = "$tmpdir/header";
4168 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4169 print HEAD "To: $mailto\n";
4170 print HEAD "Subject: $subject\n\n";
4171 print HEAD "$message\n";
4172 close HEAD;
4173
4174 if (!defined($mail_command)) {
4175 if ($mailer eq "mail" || $mailer eq "mailx") {
4176 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4177 } elsif ($mailer eq "sendmail" ) {
4178 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4179 } else {
4180 die "\nYour mailer: $mailer is not supported.\n";
4181 }
4182 }
4183
4184 if (defined($file)) {
4185 $mail_command =~ s/\$BODY_FILE/$file/g;
4186 } else {
4187 $mail_command =~ s/\$BODY_FILE//g;
4188 }
4189
4190 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4191 $mail_command =~ s/\$MAILER/$mailer/g;
4192 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4193 $mail_command =~ s/\$MAILTO/$mailto/g;
4194 $mail_command =~ s/\$SUBJECT/$subject/g;
4195 $mail_command =~ s/\$MESSAGE/$message/g;
4196
4197 my $ret = run_command $mail_command;
4198 if (!$ret && defined($file)) {
4199 # try again without the file
4200 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4201 do_send_email($subject, $message);
4202 }
4203}
4204
4205sub send_email {
4206 if (defined($mailto)) {
4207 if (!defined($mailer)) {
4208 doprint "No email sent: email or mailer not specified in config.\n";
4209 return;
4210 }
4211 do_send_mail @_;
4212 }
4213}
4214
4215sub cancel_test {
4216 if ($monitor_cnt) {
4217 end_monitor;
4218 }
4219 if ($email_when_canceled) {
4220 my $name = get_test_name;
4221 send_email("KTEST: Your [$name] test was cancelled",
4222 "Your test started at $script_start_time was cancelled: sig int");
4223 }
4224 die "\nCaught Sig Int, test interrupted: $!\n"
4225}
4226
4227$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4228
4229if ($#ARGV == 0) {
4230 $ktest_config = $ARGV[0];
4231 if (! -f $ktest_config) {
4232 print "$ktest_config does not exist.\n";
4233 if (!read_yn "Create it?") {
4234 exit 0;
4235 }
4236 }
4237}
4238
4239if (! -f $ktest_config) {
4240 $newconfig = 1;
4241 get_test_case;
4242 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4243 print OUT << "EOF"
4244# Generated by ktest.pl
4245#
4246
4247# PWD is a ktest.pl variable that will result in the process working
4248# directory that ktest.pl is executed in.
4249
4250# THIS_DIR is automatically assigned the PWD of the path that generated
4251# the config file. It is best to use this variable when assigning other
4252# directory paths within this directory. This allows you to easily
4253# move the test cases to other locations or to other machines.
4254#
4255THIS_DIR := $variable{"PWD"}
4256
4257# Define each test with TEST_START
4258# The config options below it will override the defaults
4259TEST_START
4260TEST_TYPE = $default{"TEST_TYPE"}
4261
4262DEFAULTS
4263EOF
4264;
4265 close(OUT);
4266}
4267read_config $ktest_config;
4268
4269if (defined($opt{"LOG_FILE"})) {
4270 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4271}
4272
4273# Append any configs entered in manually to the config file.
4274my @new_configs = keys %entered_configs;
4275if ($#new_configs >= 0) {
4276 print "\nAppending entered in configs to $ktest_config\n";
4277 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4278 foreach my $config (@new_configs) {
4279 print OUT "$config = $entered_configs{$config}\n";
4280 $opt{$config} = process_variables($entered_configs{$config});
4281 }
4282}
4283
4284if (defined($opt{"LOG_FILE"})) {
4285 if ($opt{"CLEAR_LOG"}) {
4286 unlink $opt{"LOG_FILE"};
4287 }
4288 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4289 LOG->autoflush(1);
4290}
4291
4292doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4293
4294for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4295
4296 if (!$i) {
4297 doprint "DEFAULT OPTIONS:\n";
4298 } else {
4299 doprint "\nTEST $i OPTIONS";
4300 if (defined($repeat_tests{$i})) {
4301 $repeat = $repeat_tests{$i};
4302 doprint " ITERATE $repeat";
4303 }
4304 doprint "\n";
4305 }
4306
4307 foreach my $option (sort keys %opt) {
4308 if ($option =~ /\[(\d+)\]$/) {
4309 next if ($i != $1);
4310 } else {
4311 next if ($i);
4312 }
4313
4314 doprint "$option = $opt{$option}\n";
4315 }
4316}
4317
4318$SIG{INT} = qw(cancel_test);
4319
4320# First we need to do is the builds
4321for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4322
4323 # Do not reboot on failing test options
4324 $no_reboot = 1;
4325 $reboot_success = 0;
4326
4327 $have_version = 0;
4328
4329 $iteration = $i;
4330
4331 $build_time = 0;
4332 $install_time = 0;
4333 $reboot_time = 0;
4334 $test_time = 0;
4335
4336 undef %force_config;
4337
4338 my $makecmd = set_test_option("MAKE_CMD", $i);
4339
4340 $outputdir = set_test_option("OUTPUT_DIR", $i);
4341 $builddir = set_test_option("BUILD_DIR", $i);
4342
4343 chdir $builddir || dodie "can't change directory to $builddir";
4344
4345 if (!-d $outputdir) {
4346 mkpath($outputdir) or
4347 dodie "can't create $outputdir";
4348 }
4349
4350 $make = "$makecmd O=$outputdir";
4351
4352 # Load all the options into their mapped variable names
4353 foreach my $opt (keys %option_map) {
4354 ${$option_map{$opt}} = set_test_option($opt, $i);
4355 }
4356
4357 $start_minconfig_defined = 1;
4358
4359 # The first test may override the PRE_KTEST option
4360 if ($i == 1) {
4361 if (defined($pre_ktest)) {
4362 doprint "\n";
4363 run_command $pre_ktest;
4364 }
4365 if ($email_when_started) {
4366 my $name = get_test_name;
4367 send_email("KTEST: Your [$name] test was started",
4368 "Your test was started on $script_start_time");
4369 }
4370 }
4371
4372 # Any test can override the POST_KTEST option
4373 # The last test takes precedence.
4374 if (defined($post_ktest)) {
4375 $final_post_ktest = $post_ktest;
4376 }
4377
4378 if (!defined($start_minconfig)) {
4379 $start_minconfig_defined = 0;
4380 $start_minconfig = $minconfig;
4381 }
4382
4383 if (!-d $tmpdir) {
4384 mkpath($tmpdir) or
4385 dodie "can't create $tmpdir";
4386 }
4387
4388 $ENV{"SSH_USER"} = $ssh_user;
4389 $ENV{"MACHINE"} = $machine;
4390
4391 $buildlog = "$tmpdir/buildlog-$machine";
4392 $testlog = "$tmpdir/testlog-$machine";
4393 $dmesg = "$tmpdir/dmesg-$machine";
4394 $output_config = "$outputdir/.config";
4395
4396 if (!$buildonly) {
4397 $target = "$ssh_user\@$machine";
4398 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4399 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4400 } elsif ($reboot_type eq "grub2") {
4401 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4402 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4403 } elsif ($reboot_type eq "syslinux") {
4404 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4405 }
4406 }
4407
4408 my $run_type = $build_type;
4409 if ($test_type eq "patchcheck") {
4410 $run_type = $patchcheck_type;
4411 } elsif ($test_type eq "bisect") {
4412 $run_type = $bisect_type;
4413 } elsif ($test_type eq "config_bisect") {
4414 $run_type = $config_bisect_type;
4415 } elsif ($test_type eq "make_min_config") {
4416 $run_type = "";
4417 } elsif ($test_type eq "make_warnings_file") {
4418 $run_type = "";
4419 }
4420
4421 # mistake in config file?
4422 if (!defined($run_type)) {
4423 $run_type = "ERROR";
4424 }
4425
4426 my $installme = "";
4427 $installme = " no_install" if ($no_install);
4428
4429 my $name = "";
4430
4431 if (defined($test_name)) {
4432 $name = " ($test_name)";
4433 }
4434
4435 doprint "\n\n";
4436
4437 if (defined($opt{"LOG_FILE"})) {
4438 $test_log_start = tell(LOG);
4439 }
4440
4441 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4442
4443 if (defined($pre_test)) {
4444 my $ret = run_command $pre_test;
4445 if (!$ret && defined($pre_test_die) &&
4446 $pre_test_die) {
4447 dodie "failed to pre_test\n";
4448 }
4449 }
4450
4451 unlink $dmesg;
4452 unlink $buildlog;
4453 unlink $testlog;
4454
4455 if (defined($addconfig)) {
4456 my $min = $minconfig;
4457 if (!defined($minconfig)) {
4458 $min = "";
4459 }
4460 run_command "cat $addconfig $min > $tmpdir/add_config" or
4461 dodie "Failed to create temp config";
4462 $minconfig = "$tmpdir/add_config";
4463 }
4464
4465 if (defined($checkout)) {
4466 run_command "git checkout $checkout" or
4467 dodie "failed to checkout $checkout";
4468 }
4469
4470 $no_reboot = 0;
4471
4472 # A test may opt to not reboot the box
4473 if ($reboot_on_success) {
4474 $reboot_success = 1;
4475 }
4476
4477 if ($test_type eq "bisect") {
4478 bisect $i;
4479 next;
4480 } elsif ($test_type eq "config_bisect") {
4481 config_bisect $i;
4482 next;
4483 } elsif ($test_type eq "patchcheck") {
4484 patchcheck $i;
4485 next;
4486 } elsif ($test_type eq "make_min_config") {
4487 make_min_config $i;
4488 next;
4489 } elsif ($test_type eq "make_warnings_file") {
4490 $no_reboot = 1;
4491 make_warnings_file $i;
4492 next;
4493 }
4494
4495 if ($build_type ne "nobuild") {
4496 build $build_type or next;
4497 check_buildlog or next;
4498 }
4499
4500 if ($test_type eq "install") {
4501 get_version;
4502 install;
4503 success $i;
4504 next;
4505 }
4506
4507 if ($test_type ne "build") {
4508 my $failed = 0;
4509 start_monitor_and_install or $failed = 1;
4510
4511 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4512 do_run_test or $failed = 1;
4513 }
4514 end_monitor;
4515 if ($failed) {
4516 print_times;
4517 next;
4518 }
4519 }
4520
4521 print_times;
4522
4523 success $i;
4524}
4525
4526if (defined($final_post_ktest)) {
4527
4528 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4529 run_command $cp_final_post_ktest;
4530}
4531
4532if ($opt{"POWEROFF_ON_SUCCESS"}) {
4533 halt;
4534} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4535 reboot_to_good;
4536} elsif (defined($switch_to_good)) {
4537 # still need to get to the good kernel
4538 run_command $switch_to_good;
4539}
4540
4541doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4542
4543if ($email_when_finished) {
4544 send_email("KTEST: Your test has finished!",
4545 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4546}
4547
4548if (defined($opt{"LOG_FILE"})) {
4549 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4550 close LOG;
4551}
4552
4553exit 0;
4554
4555##
4556# The following are here to standardize tabs/spaces/etc across the most likely editors
4557###
4558
4559# Local Variables:
4560# mode: perl
4561# End:
4562# vim: softtabstop=4