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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;
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 $redirect;
153my $buildlog;
154my $testlog;
155my $dmesg;
156my $monitor_fp;
157my $monitor_pid;
158my $monitor_cnt = 0;
159my $sleep_time;
160my $bisect_sleep_time;
161my $patchcheck_sleep_time;
162my $ignore_warnings;
163my $store_failures;
164my $store_successes;
165my $test_name;
166my $timeout;
167my $booted_timeout;
168my $detect_triplefault;
169my $console;
170my $close_console_signal;
171my $reboot_success_line;
172my $success_line;
173my $stop_after_success;
174my $stop_after_failure;
175my $stop_test_after;
176my $build_target;
177my $target_image;
178my $checkout;
179my $localversion;
180my $iteration = 0;
181my $successes = 0;
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_end;
199
200# set when a test is something other that just building or install
201# which would require more options.
202my $buildonly = 1;
203
204# tell build not to worry about warnings, even when WARNINGS_FILE is set
205my $warnings_ok = 0;
206
207# set when creating a new config
208my $newconfig = 0;
209
210my %entered_configs;
211my %config_help;
212my %variable;
213
214# force_config is the list of configs that we force enabled (or disabled)
215# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
216my %force_config;
217
218# do not force reboots on config problems
219my $no_reboot = 1;
220
221# reboot on success
222my $reboot_success = 0;
223
224my %option_map = (
225 "MACHINE" => \$machine,
226 "SSH_USER" => \$ssh_user,
227 "TMP_DIR" => \$tmpdir,
228 "OUTPUT_DIR" => \$outputdir,
229 "BUILD_DIR" => \$builddir,
230 "TEST_TYPE" => \$test_type,
231 "PRE_KTEST" => \$pre_ktest,
232 "POST_KTEST" => \$post_ktest,
233 "PRE_TEST" => \$pre_test,
234 "POST_TEST" => \$post_test,
235 "BUILD_TYPE" => \$build_type,
236 "BUILD_OPTIONS" => \$build_options,
237 "PRE_BUILD" => \$pre_build,
238 "POST_BUILD" => \$post_build,
239 "PRE_BUILD_DIE" => \$pre_build_die,
240 "POST_BUILD_DIE" => \$post_build_die,
241 "POWER_CYCLE" => \$power_cycle,
242 "REBOOT" => \$reboot,
243 "BUILD_NOCLEAN" => \$noclean,
244 "MIN_CONFIG" => \$minconfig,
245 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
246 "START_MIN_CONFIG" => \$start_minconfig,
247 "MIN_CONFIG_TYPE" => \$minconfig_type,
248 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
249 "WARNINGS_FILE" => \$warnings_file,
250 "IGNORE_CONFIG" => \$ignore_config,
251 "TEST" => \$run_test,
252 "ADD_CONFIG" => \$addconfig,
253 "REBOOT_TYPE" => \$reboot_type,
254 "GRUB_MENU" => \$grub_menu,
255 "GRUB_FILE" => \$grub_file,
256 "GRUB_REBOOT" => \$grub_reboot,
257 "SYSLINUX" => \$syslinux,
258 "SYSLINUX_PATH" => \$syslinux_path,
259 "SYSLINUX_LABEL" => \$syslinux_label,
260 "PRE_INSTALL" => \$pre_install,
261 "POST_INSTALL" => \$post_install,
262 "NO_INSTALL" => \$no_install,
263 "REBOOT_SCRIPT" => \$reboot_script,
264 "REBOOT_ON_ERROR" => \$reboot_on_error,
265 "SWITCH_TO_GOOD" => \$switch_to_good,
266 "SWITCH_TO_TEST" => \$switch_to_test,
267 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
268 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
269 "DIE_ON_FAILURE" => \$die_on_failure,
270 "POWER_OFF" => \$power_off,
271 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
272 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
273 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
274 "SLEEP_TIME" => \$sleep_time,
275 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
276 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
277 "IGNORE_WARNINGS" => \$ignore_warnings,
278 "IGNORE_ERRORS" => \$ignore_errors,
279 "BISECT_MANUAL" => \$bisect_manual,
280 "BISECT_SKIP" => \$bisect_skip,
281 "BISECT_TRIES" => \$bisect_tries,
282 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
283 "BISECT_RET_GOOD" => \$bisect_ret_good,
284 "BISECT_RET_BAD" => \$bisect_ret_bad,
285 "BISECT_RET_SKIP" => \$bisect_ret_skip,
286 "BISECT_RET_ABORT" => \$bisect_ret_abort,
287 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
288 "STORE_FAILURES" => \$store_failures,
289 "STORE_SUCCESSES" => \$store_successes,
290 "TEST_NAME" => \$test_name,
291 "TIMEOUT" => \$timeout,
292 "BOOTED_TIMEOUT" => \$booted_timeout,
293 "CONSOLE" => \$console,
294 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
295 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
296 "SUCCESS_LINE" => \$success_line,
297 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
298 "STOP_AFTER_SUCCESS" => \$stop_after_success,
299 "STOP_AFTER_FAILURE" => \$stop_after_failure,
300 "STOP_TEST_AFTER" => \$stop_test_after,
301 "BUILD_TARGET" => \$build_target,
302 "SSH_EXEC" => \$ssh_exec,
303 "SCP_TO_TARGET" => \$scp_to_target,
304 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
305 "CHECKOUT" => \$checkout,
306 "TARGET_IMAGE" => \$target_image,
307 "LOCALVERSION" => \$localversion,
308
309 "BISECT_GOOD" => \$bisect_good,
310 "BISECT_BAD" => \$bisect_bad,
311 "BISECT_TYPE" => \$bisect_type,
312 "BISECT_START" => \$bisect_start,
313 "BISECT_REPLAY" => \$bisect_replay,
314 "BISECT_FILES" => \$bisect_files,
315 "BISECT_REVERSE" => \$bisect_reverse,
316 "BISECT_CHECK" => \$bisect_check,
317
318 "CONFIG_BISECT" => \$config_bisect,
319 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
320 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
321
322 "PATCHCHECK_TYPE" => \$patchcheck_type,
323 "PATCHCHECK_START" => \$patchcheck_start,
324 "PATCHCHECK_END" => \$patchcheck_end,
325);
326
327# Options may be used by other options, record them.
328my %used_options;
329
330# default variables that can be used
331chomp ($variable{"PWD"} = `pwd`);
332
333$config_help{"MACHINE"} = << "EOF"
334 The machine hostname that you will test.
335 For build only tests, it is still needed to differentiate log files.
336EOF
337 ;
338$config_help{"SSH_USER"} = << "EOF"
339 The box is expected to have ssh on normal bootup, provide the user
340 (most likely root, since you need privileged operations)
341EOF
342 ;
343$config_help{"BUILD_DIR"} = << "EOF"
344 The directory that contains the Linux source code (full path).
345 You can use \${PWD} that will be the path where ktest.pl is run, or use
346 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
347EOF
348 ;
349$config_help{"OUTPUT_DIR"} = << "EOF"
350 The directory that the objects will be built (full path).
351 (can not be same as BUILD_DIR)
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$config_help{"BUILD_TARGET"} = << "EOF"
357 The location of the compiled file to copy to the target.
358 (relative to OUTPUT_DIR)
359EOF
360 ;
361$config_help{"BUILD_OPTIONS"} = << "EOF"
362 Options to add to \"make\" when building.
363 i.e. -j20
364EOF
365 ;
366$config_help{"TARGET_IMAGE"} = << "EOF"
367 The place to put your image on the test machine.
368EOF
369 ;
370$config_help{"POWER_CYCLE"} = << "EOF"
371 A script or command to reboot the box.
372
373 Here is a digital loggers power switch example
374 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
375
376 Here is an example to reboot a virtual box on the current host
377 with the name "Guest".
378 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
379EOF
380 ;
381$config_help{"CONSOLE"} = << "EOF"
382 The script or command that reads the console
383
384 If you use ttywatch server, something like the following would work.
385CONSOLE = nc -d localhost 3001
386
387 For a virtual machine with guest name "Guest".
388CONSOLE = virsh console Guest
389EOF
390 ;
391$config_help{"LOCALVERSION"} = << "EOF"
392 Required version ending to differentiate the test
393 from other linux builds on the system.
394EOF
395 ;
396$config_help{"REBOOT_TYPE"} = << "EOF"
397 Way to reboot the box to the test kernel.
398 Only valid options so far are "grub", "grub2", "syslinux", and "script".
399
400 If you specify grub, it will assume grub version 1
401 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
402 and select that target to reboot to the kernel. If this is not
403 your setup, then specify "script" and have a command or script
404 specified in REBOOT_SCRIPT to boot to the target.
405
406 The entry in /boot/grub/menu.lst must be entered in manually.
407 The test will not modify that file.
408
409 If you specify grub2, then you also need to specify both \$GRUB_MENU
410 and \$GRUB_FILE.
411
412 If you specify syslinux, then you may use SYSLINUX to define the syslinux
413 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
414 the syslinux install (defaults to /boot/extlinux). But you have to specify
415 SYSLINUX_LABEL to define the label to boot to for the test kernel.
416EOF
417 ;
418$config_help{"GRUB_MENU"} = << "EOF"
419 The grub title name for the test kernel to boot
420 (Only mandatory if REBOOT_TYPE = grub or grub2)
421
422 Note, ktest.pl will not update the grub menu.lst, you need to
423 manually add an option for the test. ktest.pl will search
424 the grub menu.lst for this option to find what kernel to
425 reboot into.
426
427 For example, if in the /boot/grub/menu.lst the test kernel title has:
428 title Test Kernel
429 kernel vmlinuz-test
430 GRUB_MENU = Test Kernel
431
432 For grub2, a search of \$GRUB_FILE is performed for the lines
433 that begin with "menuentry". It will not detect submenus. The
434 menu must be a non-nested menu. Add the quotes used in the menu
435 to guarantee your selection, as the first menuentry with the content
436 of \$GRUB_MENU that is found will be used.
437EOF
438 ;
439$config_help{"GRUB_FILE"} = << "EOF"
440 If grub2 is used, the full path for the grub.cfg file is placed
441 here. Use something like /boot/grub2/grub.cfg to search.
442EOF
443 ;
444$config_help{"SYSLINUX_LABEL"} = << "EOF"
445 If syslinux is used, the label that boots the target kernel must
446 be specified with SYSLINUX_LABEL.
447EOF
448 ;
449$config_help{"REBOOT_SCRIPT"} = << "EOF"
450 A script to reboot the target into the test kernel
451 (Only mandatory if REBOOT_TYPE = script)
452EOF
453 ;
454
455sub _logit {
456 if (defined($opt{"LOG_FILE"})) {
457 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
458 print OUT @_;
459 close(OUT);
460 }
461}
462
463sub logit {
464 if (defined($opt{"LOG_FILE"})) {
465 _logit @_;
466 } else {
467 print @_;
468 }
469}
470
471sub doprint {
472 print @_;
473 _logit @_;
474}
475
476sub read_prompt {
477 my ($cancel, $prompt) = @_;
478
479 my $ans;
480
481 for (;;) {
482 if ($cancel) {
483 print "$prompt [y/n/C] ";
484 } else {
485 print "$prompt [Y/n] ";
486 }
487 $ans = <STDIN>;
488 chomp $ans;
489 if ($ans =~ /^\s*$/) {
490 if ($cancel) {
491 $ans = "c";
492 } else {
493 $ans = "y";
494 }
495 }
496 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
497 if ($cancel) {
498 last if ($ans =~ /^c$/i);
499 print "Please answer either 'y', 'n' or 'c'.\n";
500 } else {
501 print "Please answer either 'y' or 'n'.\n";
502 }
503 }
504 if ($ans =~ /^c/i) {
505 exit;
506 }
507 if ($ans !~ /^y$/i) {
508 return 0;
509 }
510 return 1;
511}
512
513sub read_yn {
514 my ($prompt) = @_;
515
516 return read_prompt 0, $prompt;
517}
518
519sub read_ync {
520 my ($prompt) = @_;
521
522 return read_prompt 1, $prompt;
523}
524
525sub get_ktest_config {
526 my ($config) = @_;
527 my $ans;
528
529 return if (defined($opt{$config}));
530
531 if (defined($config_help{$config})) {
532 print "\n";
533 print $config_help{$config};
534 }
535
536 for (;;) {
537 print "$config = ";
538 if (defined($default{$config}) && length($default{$config})) {
539 print "\[$default{$config}\] ";
540 }
541 $ans = <STDIN>;
542 $ans =~ s/^\s*(.*\S)\s*$/$1/;
543 if ($ans =~ /^\s*$/) {
544 if ($default{$config}) {
545 $ans = $default{$config};
546 } else {
547 print "Your answer can not be blank\n";
548 next;
549 }
550 }
551 $entered_configs{$config} = ${ans};
552 last;
553 }
554}
555
556sub get_ktest_configs {
557 get_ktest_config("MACHINE");
558 get_ktest_config("BUILD_DIR");
559 get_ktest_config("OUTPUT_DIR");
560
561 if ($newconfig) {
562 get_ktest_config("BUILD_OPTIONS");
563 }
564
565 # options required for other than just building a kernel
566 if (!$buildonly) {
567 get_ktest_config("POWER_CYCLE");
568 get_ktest_config("CONSOLE");
569 }
570
571 # options required for install and more
572 if ($buildonly != 1) {
573 get_ktest_config("SSH_USER");
574 get_ktest_config("BUILD_TARGET");
575 get_ktest_config("TARGET_IMAGE");
576 }
577
578 get_ktest_config("LOCALVERSION");
579
580 return if ($buildonly);
581
582 my $rtype = $opt{"REBOOT_TYPE"};
583
584 if (!defined($rtype)) {
585 if (!defined($opt{"GRUB_MENU"})) {
586 get_ktest_config("REBOOT_TYPE");
587 $rtype = $entered_configs{"REBOOT_TYPE"};
588 } else {
589 $rtype = "grub";
590 }
591 }
592
593 if ($rtype eq "grub") {
594 get_ktest_config("GRUB_MENU");
595 }
596
597 if ($rtype eq "grub2") {
598 get_ktest_config("GRUB_MENU");
599 get_ktest_config("GRUB_FILE");
600 }
601
602 if ($rtype eq "syslinux") {
603 get_ktest_config("SYSLINUX_LABEL");
604 }
605}
606
607sub process_variables {
608 my ($value, $remove_undef) = @_;
609 my $retval = "";
610
611 # We want to check for '\', and it is just easier
612 # to check the previous characet of '$' and not need
613 # to worry if '$' is the first character. By adding
614 # a space to $value, we can just check [^\\]\$ and
615 # it will still work.
616 $value = " $value";
617
618 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
619 my $begin = $1;
620 my $var = $2;
621 my $end = $3;
622 # append beginning of value to retval
623 $retval = "$retval$begin";
624 if (defined($variable{$var})) {
625 $retval = "$retval$variable{$var}";
626 } elsif (defined($remove_undef) && $remove_undef) {
627 # for if statements, any variable that is not defined,
628 # we simple convert to 0
629 $retval = "${retval}0";
630 } else {
631 # put back the origin piece.
632 $retval = "$retval\$\{$var\}";
633 # This could be an option that is used later, save
634 # it so we don't warn if this option is not one of
635 # ktests options.
636 $used_options{$var} = 1;
637 }
638 $value = $end;
639 }
640 $retval = "$retval$value";
641
642 # remove the space added in the beginning
643 $retval =~ s/ //;
644
645 return "$retval"
646}
647
648sub set_value {
649 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
650
651 my $prvalue = process_variables($rvalue);
652
653 if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
654 # Note if a test is something other than build, then we
655 # will need other manditory options.
656 if ($prvalue ne "install") {
657 # for bisect, we need to check BISECT_TYPE
658 if ($prvalue ne "bisect") {
659 $buildonly = 0;
660 }
661 } else {
662 # install still limits some manditory options.
663 $buildonly = 2;
664 }
665 }
666
667 if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
668 if ($prvalue ne "install") {
669 $buildonly = 0;
670 } else {
671 # install still limits some manditory options.
672 $buildonly = 2;
673 }
674 }
675
676 if (defined($opt{$lvalue})) {
677 if (!$override || defined(${$overrides}{$lvalue})) {
678 my $extra = "";
679 if ($override) {
680 $extra = "In the same override section!\n";
681 }
682 die "$name: $.: Option $lvalue defined more than once!\n$extra";
683 }
684 ${$overrides}{$lvalue} = $prvalue;
685 }
686 if ($rvalue =~ /^\s*$/) {
687 delete $opt{$lvalue};
688 } else {
689 $opt{$lvalue} = $prvalue;
690 }
691}
692
693sub set_eval {
694 my ($lvalue, $rvalue, $name) = @_;
695
696 my $prvalue = process_variables($rvalue);
697 my $arr;
698
699 if (defined($evals{$lvalue})) {
700 $arr = $evals{$lvalue};
701 } else {
702 $arr = [];
703 $evals{$lvalue} = $arr;
704 }
705
706 push @{$arr}, $rvalue;
707}
708
709sub set_variable {
710 my ($lvalue, $rvalue) = @_;
711
712 if ($rvalue =~ /^\s*$/) {
713 delete $variable{$lvalue};
714 } else {
715 $rvalue = process_variables($rvalue);
716 $variable{$lvalue} = $rvalue;
717 }
718}
719
720sub process_compare {
721 my ($lval, $cmp, $rval) = @_;
722
723 # remove whitespace
724
725 $lval =~ s/^\s*//;
726 $lval =~ s/\s*$//;
727
728 $rval =~ s/^\s*//;
729 $rval =~ s/\s*$//;
730
731 if ($cmp eq "==") {
732 return $lval eq $rval;
733 } elsif ($cmp eq "!=") {
734 return $lval ne $rval;
735 } elsif ($cmp eq "=~") {
736 return $lval =~ m/$rval/;
737 } elsif ($cmp eq "!~") {
738 return $lval !~ m/$rval/;
739 }
740
741 my $statement = "$lval $cmp $rval";
742 my $ret = eval $statement;
743
744 # $@ stores error of eval
745 if ($@) {
746 return -1;
747 }
748
749 return $ret;
750}
751
752sub value_defined {
753 my ($val) = @_;
754
755 return defined($variable{$2}) ||
756 defined($opt{$2});
757}
758
759my $d = 0;
760sub process_expression {
761 my ($name, $val) = @_;
762
763 my $c = $d++;
764
765 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
766 my $express = $1;
767
768 if (process_expression($name, $express)) {
769 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
770 } else {
771 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
772 }
773 }
774
775 $d--;
776 my $OR = "\\|\\|";
777 my $AND = "\\&\\&";
778
779 while ($val =~ s/^(.*?)($OR|$AND)//) {
780 my $express = $1;
781 my $op = $2;
782
783 if (process_expression($name, $express)) {
784 if ($op eq "||") {
785 return 1;
786 }
787 } else {
788 if ($op eq "&&") {
789 return 0;
790 }
791 }
792 }
793
794 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
795 my $ret = process_compare($1, $2, $3);
796 if ($ret < 0) {
797 die "$name: $.: Unable to process comparison\n";
798 }
799 return $ret;
800 }
801
802 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
803 if (defined $1) {
804 return !value_defined($2);
805 } else {
806 return value_defined($2);
807 }
808 }
809
810 if ($val =~ /^\s*0\s*$/) {
811 return 0;
812 } elsif ($val =~ /^\s*\d+\s*$/) {
813 return 1;
814 }
815
816 die ("$name: $.: Undefined content $val in if statement\n");
817}
818
819sub process_if {
820 my ($name, $value) = @_;
821
822 # Convert variables and replace undefined ones with 0
823 my $val = process_variables($value, 1);
824 my $ret = process_expression $name, $val;
825
826 return $ret;
827}
828
829sub __read_config {
830 my ($config, $current_test_num) = @_;
831
832 my $in;
833 open($in, $config) || die "can't read file $config";
834
835 my $name = $config;
836 $name =~ s,.*/(.*),$1,;
837
838 my $test_num = $$current_test_num;
839 my $default = 1;
840 my $repeat = 1;
841 my $num_tests_set = 0;
842 my $skip = 0;
843 my $rest;
844 my $line;
845 my $test_case = 0;
846 my $if = 0;
847 my $if_set = 0;
848 my $override = 0;
849
850 my %overrides;
851
852 while (<$in>) {
853
854 # ignore blank lines and comments
855 next if (/^\s*$/ || /\s*\#/);
856
857 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
858
859 my $type = $1;
860 $rest = $2;
861 $line = $2;
862
863 my $old_test_num;
864 my $old_repeat;
865 $override = 0;
866
867 if ($type eq "TEST_START") {
868
869 if ($num_tests_set) {
870 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
871 }
872
873 $old_test_num = $test_num;
874 $old_repeat = $repeat;
875
876 $test_num += $repeat;
877 $default = 0;
878 $repeat = 1;
879 } else {
880 $default = 1;
881 }
882
883 # If SKIP is anywhere in the line, the command will be skipped
884 if ($rest =~ s/\s+SKIP\b//) {
885 $skip = 1;
886 } else {
887 $test_case = 1;
888 $skip = 0;
889 }
890
891 if ($rest =~ s/\sELSE\b//) {
892 if (!$if) {
893 die "$name: $.: ELSE found with out matching IF section\n$_";
894 }
895 $if = 0;
896
897 if ($if_set) {
898 $skip = 1;
899 } else {
900 $skip = 0;
901 }
902 }
903
904 if ($rest =~ s/\sIF\s+(.*)//) {
905 if (process_if($name, $1)) {
906 $if_set = 1;
907 } else {
908 $skip = 1;
909 }
910 $if = 1;
911 } else {
912 $if = 0;
913 $if_set = 0;
914 }
915
916 if (!$skip) {
917 if ($type eq "TEST_START") {
918 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
919 $repeat = $1;
920 $repeat_tests{"$test_num"} = $repeat;
921 }
922 } elsif ($rest =~ s/\sOVERRIDE\b//) {
923 # DEFAULT only
924 $override = 1;
925 # Clear previous overrides
926 %overrides = ();
927 }
928 }
929
930 if (!$skip && $rest !~ /^\s*$/) {
931 die "$name: $.: Gargbage found after $type\n$_";
932 }
933
934 if ($skip && $type eq "TEST_START") {
935 $test_num = $old_test_num;
936 $repeat = $old_repeat;
937 }
938
939 } elsif (/^\s*ELSE\b(.*)$/) {
940 if (!$if) {
941 die "$name: $.: ELSE found with out matching IF section\n$_";
942 }
943 $rest = $1;
944 if ($if_set) {
945 $skip = 1;
946 $rest = "";
947 } else {
948 $skip = 0;
949
950 if ($rest =~ /\sIF\s+(.*)/) {
951 # May be a ELSE IF section.
952 if (process_if($name, $1)) {
953 $if_set = 1;
954 } else {
955 $skip = 1;
956 }
957 $rest = "";
958 } else {
959 $if = 0;
960 }
961 }
962
963 if ($rest !~ /^\s*$/) {
964 die "$name: $.: Gargbage found after DEFAULTS\n$_";
965 }
966
967 } elsif (/^\s*INCLUDE\s+(\S+)/) {
968
969 next if ($skip);
970
971 if (!$default) {
972 die "$name: $.: INCLUDE can only be done in default sections\n$_";
973 }
974
975 my $file = process_variables($1);
976
977 if ($file !~ m,^/,) {
978 # check the path of the config file first
979 if ($config =~ m,(.*)/,) {
980 if (-f "$1/$file") {
981 $file = "$1/$file";
982 }
983 }
984 }
985
986 if ( ! -r $file ) {
987 die "$name: $.: Can't read file $file\n$_";
988 }
989
990 if (__read_config($file, \$test_num)) {
991 $test_case = 1;
992 }
993
994 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
995
996 next if ($skip);
997
998 my $lvalue = $1;
999 my $rvalue = $2;
1000
1001 if ($default || $lvalue =~ /\[\d+\]$/) {
1002 set_eval($lvalue, $rvalue, $name);
1003 } else {
1004 my $val = "$lvalue\[$test_num\]";
1005 set_eval($val, $rvalue, $name);
1006 }
1007
1008 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1009
1010 next if ($skip);
1011
1012 my $lvalue = $1;
1013 my $rvalue = $2;
1014
1015 if (!$default &&
1016 ($lvalue eq "NUM_TESTS" ||
1017 $lvalue eq "LOG_FILE" ||
1018 $lvalue eq "CLEAR_LOG")) {
1019 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1020 }
1021
1022 if ($lvalue eq "NUM_TESTS") {
1023 if ($test_num) {
1024 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1025 }
1026 if (!$default) {
1027 die "$name: $.: NUM_TESTS must be set in default section\n";
1028 }
1029 $num_tests_set = 1;
1030 }
1031
1032 if ($default || $lvalue =~ /\[\d+\]$/) {
1033 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1034 } else {
1035 my $val = "$lvalue\[$test_num\]";
1036 set_value($val, $rvalue, $override, \%overrides, $name);
1037
1038 if ($repeat > 1) {
1039 $repeats{$val} = $repeat;
1040 }
1041 }
1042 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1043 next if ($skip);
1044
1045 my $lvalue = $1;
1046 my $rvalue = $2;
1047
1048 # process config variables.
1049 # Config variables are only active while reading the
1050 # config and can be defined anywhere. They also ignore
1051 # TEST_START and DEFAULTS, but are skipped if they are in
1052 # on of these sections that have SKIP defined.
1053 # The save variable can be
1054 # defined multiple times and the new one simply overrides
1055 # the prevous one.
1056 set_variable($lvalue, $rvalue);
1057
1058 } else {
1059 die "$name: $.: Garbage found in config\n$_";
1060 }
1061 }
1062
1063 if ($test_num) {
1064 $test_num += $repeat - 1;
1065 $opt{"NUM_TESTS"} = $test_num;
1066 }
1067
1068 close($in);
1069
1070 $$current_test_num = $test_num;
1071
1072 return $test_case;
1073}
1074
1075sub get_test_case {
1076 print "What test case would you like to run?\n";
1077 print " (build, install or boot)\n";
1078 print " Other tests are available but require editing the config file\n";
1079 my $ans = <STDIN>;
1080 chomp $ans;
1081 $default{"TEST_TYPE"} = $ans;
1082}
1083
1084sub read_config {
1085 my ($config) = @_;
1086
1087 my $test_case;
1088 my $test_num = 0;
1089
1090 $test_case = __read_config $config, \$test_num;
1091
1092 # make sure we have all mandatory configs
1093 get_ktest_configs;
1094
1095 # was a test specified?
1096 if (!$test_case) {
1097 print "No test case specified.\n";
1098 get_test_case;
1099 }
1100
1101 # set any defaults
1102
1103 foreach my $default (keys %default) {
1104 if (!defined($opt{$default})) {
1105 $opt{$default} = $default{$default};
1106 }
1107 }
1108
1109 if ($opt{"IGNORE_UNUSED"} == 1) {
1110 return;
1111 }
1112
1113 my %not_used;
1114
1115 # check if there are any stragglers (typos?)
1116 foreach my $option (keys %opt) {
1117 my $op = $option;
1118 # remove per test labels.
1119 $op =~ s/\[.*\]//;
1120 if (!exists($option_map{$op}) &&
1121 !exists($default{$op}) &&
1122 !exists($used_options{$op})) {
1123 $not_used{$op} = 1;
1124 }
1125 }
1126
1127 if (%not_used) {
1128 my $s = "s are";
1129 $s = " is" if (keys %not_used == 1);
1130 print "The following option$s not used; could be a typo:\n";
1131 foreach my $option (keys %not_used) {
1132 print "$option\n";
1133 }
1134 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1135 if (!read_yn "Do you want to continue?") {
1136 exit -1;
1137 }
1138 }
1139}
1140
1141sub __eval_option {
1142 my ($name, $option, $i) = @_;
1143
1144 # Add space to evaluate the character before $
1145 $option = " $option";
1146 my $retval = "";
1147 my $repeated = 0;
1148 my $parent = 0;
1149
1150 foreach my $test (keys %repeat_tests) {
1151 if ($i >= $test &&
1152 $i < $test + $repeat_tests{$test}) {
1153
1154 $repeated = 1;
1155 $parent = $test;
1156 last;
1157 }
1158 }
1159
1160 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1161 my $start = $1;
1162 my $var = $2;
1163 my $end = $3;
1164
1165 # Append beginning of line
1166 $retval = "$retval$start";
1167
1168 # If the iteration option OPT[$i] exists, then use that.
1169 # otherwise see if the default OPT (without [$i]) exists.
1170
1171 my $o = "$var\[$i\]";
1172 my $parento = "$var\[$parent\]";
1173
1174 # If a variable contains itself, use the default var
1175 if (($var eq $name) && defined($opt{$var})) {
1176 $o = $opt{$var};
1177 $retval = "$retval$o";
1178 } elsif (defined($opt{$o})) {
1179 $o = $opt{$o};
1180 $retval = "$retval$o";
1181 } elsif ($repeated && defined($opt{$parento})) {
1182 $o = $opt{$parento};
1183 $retval = "$retval$o";
1184 } elsif (defined($opt{$var})) {
1185 $o = $opt{$var};
1186 $retval = "$retval$o";
1187 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1188 # special option KERNEL_VERSION uses kernel version
1189 get_version();
1190 $retval = "$retval$version";
1191 } else {
1192 $retval = "$retval\$\{$var\}";
1193 }
1194
1195 $option = $end;
1196 }
1197
1198 $retval = "$retval$option";
1199
1200 $retval =~ s/^ //;
1201
1202 return $retval;
1203}
1204
1205sub process_evals {
1206 my ($name, $option, $i) = @_;
1207
1208 my $option_name = "$name\[$i\]";
1209 my $ev;
1210
1211 my $old_option = $option;
1212
1213 if (defined($evals{$option_name})) {
1214 $ev = $evals{$option_name};
1215 } elsif (defined($evals{$name})) {
1216 $ev = $evals{$name};
1217 } else {
1218 return $option;
1219 }
1220
1221 for my $e (@{$ev}) {
1222 eval "\$option =~ $e";
1223 }
1224
1225 if ($option ne $old_option) {
1226 doprint("$name changed from '$old_option' to '$option'\n");
1227 }
1228
1229 return $option;
1230}
1231
1232sub eval_option {
1233 my ($name, $option, $i) = @_;
1234
1235 my $prev = "";
1236
1237 # Since an option can evaluate to another option,
1238 # keep iterating until we do not evaluate any more
1239 # options.
1240 my $r = 0;
1241 while ($prev ne $option) {
1242 # Check for recursive evaluations.
1243 # 100 deep should be more than enough.
1244 if ($r++ > 100) {
1245 die "Over 100 evaluations accurred with $option\n" .
1246 "Check for recursive variables\n";
1247 }
1248 $prev = $option;
1249 $option = __eval_option($name, $option, $i);
1250 }
1251
1252 $option = process_evals($name, $option, $i);
1253
1254 return $option;
1255}
1256
1257sub run_command;
1258sub start_monitor;
1259sub end_monitor;
1260sub wait_for_monitor;
1261
1262sub reboot {
1263 my ($time) = @_;
1264
1265 # Make sure everything has been written to disk
1266 run_ssh("sync");
1267
1268 if (defined($time)) {
1269 start_monitor;
1270 # flush out current monitor
1271 # May contain the reboot success line
1272 wait_for_monitor 1;
1273 }
1274
1275 # try to reboot normally
1276 if (run_command $reboot) {
1277 if (defined($powercycle_after_reboot)) {
1278 sleep $powercycle_after_reboot;
1279 run_command "$power_cycle";
1280 }
1281 } else {
1282 # nope? power cycle it.
1283 run_command "$power_cycle";
1284 }
1285
1286 if (defined($time)) {
1287
1288 # We only want to get to the new kernel, don't fail
1289 # if we stumble over a call trace.
1290 my $save_ignore_errors = $ignore_errors;
1291 $ignore_errors = 1;
1292
1293 # Look for the good kernel to boot
1294 if (wait_for_monitor($time, "Linux version")) {
1295 # reboot got stuck?
1296 doprint "Reboot did not finish. Forcing power cycle\n";
1297 run_command "$power_cycle";
1298 }
1299
1300 $ignore_errors = $save_ignore_errors;
1301
1302 # Still need to wait for the reboot to finish
1303 wait_for_monitor($time, $reboot_success_line);
1304
1305 end_monitor;
1306 }
1307}
1308
1309sub reboot_to_good {
1310 my ($time) = @_;
1311
1312 if (defined($switch_to_good)) {
1313 run_command $switch_to_good;
1314 }
1315
1316 reboot $time;
1317}
1318
1319sub do_not_reboot {
1320 my $i = $iteration;
1321
1322 return $test_type eq "build" || $no_reboot ||
1323 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1324 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build");
1325}
1326
1327sub dodie {
1328 doprint "CRITICAL FAILURE... ", @_, "\n";
1329
1330 my $i = $iteration;
1331
1332 if ($reboot_on_error && !do_not_reboot) {
1333
1334 doprint "REBOOTING\n";
1335 reboot_to_good;
1336
1337 } elsif ($poweroff_on_error && defined($power_off)) {
1338 doprint "POWERING OFF\n";
1339 `$power_off`;
1340 }
1341
1342 if (defined($opt{"LOG_FILE"})) {
1343 print " See $opt{LOG_FILE} for more info.\n";
1344 }
1345
1346 die @_, "\n";
1347}
1348
1349sub open_console {
1350 my ($fp) = @_;
1351
1352 my $flags;
1353
1354 my $pid = open($fp, "$console|") or
1355 dodie "Can't open console $console";
1356
1357 $flags = fcntl($fp, F_GETFL, 0) or
1358 dodie "Can't get flags for the socket: $!";
1359 $flags = fcntl($fp, F_SETFL, $flags | O_NONBLOCK) or
1360 dodie "Can't set flags for the socket: $!";
1361
1362 return $pid;
1363}
1364
1365sub close_console {
1366 my ($fp, $pid) = @_;
1367
1368 doprint "kill child process $pid\n";
1369 kill $close_console_signal, $pid;
1370
1371 print "closing!\n";
1372 close($fp);
1373}
1374
1375sub start_monitor {
1376 if ($monitor_cnt++) {
1377 return;
1378 }
1379 $monitor_fp = \*MONFD;
1380 $monitor_pid = open_console $monitor_fp;
1381
1382 return;
1383
1384 open(MONFD, "Stop perl from warning about single use of MONFD");
1385}
1386
1387sub end_monitor {
1388 return if (!defined $console);
1389 if (--$monitor_cnt) {
1390 return;
1391 }
1392 close_console($monitor_fp, $monitor_pid);
1393}
1394
1395sub wait_for_monitor {
1396 my ($time, $stop) = @_;
1397 my $full_line = "";
1398 my $line;
1399 my $booted = 0;
1400 my $start_time = time;
1401 my $skip_call_trace = 0;
1402 my $bug = 0;
1403 my $bug_ignored = 0;
1404 my $now;
1405
1406 doprint "** Wait for monitor to settle down **\n";
1407
1408 # read the monitor and wait for the system to calm down
1409 while (!$booted) {
1410 $line = wait_for_input($monitor_fp, $time);
1411 last if (!defined($line));
1412 print "$line";
1413 $full_line .= $line;
1414
1415 if (defined($stop) && $full_line =~ /$stop/) {
1416 doprint "wait for monitor detected $stop\n";
1417 $booted = 1;
1418 }
1419
1420 if ($full_line =~ /\[ backtrace testing \]/) {
1421 $skip_call_trace = 1;
1422 }
1423
1424 if ($full_line =~ /call trace:/i) {
1425 if (!$bug && !$skip_call_trace) {
1426 if ($ignore_errors) {
1427 $bug_ignored = 1;
1428 } else {
1429 $bug = 1;
1430 }
1431 }
1432 }
1433
1434 if ($full_line =~ /\[ end of backtrace testing \]/) {
1435 $skip_call_trace = 0;
1436 }
1437
1438 if ($full_line =~ /Kernel panic -/) {
1439 $bug = 1;
1440 }
1441
1442 if ($line =~ /\n/) {
1443 $full_line = "";
1444 }
1445 $now = time;
1446 if ($now - $start_time >= $max_monitor_wait) {
1447 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1448 return 1;
1449 }
1450 }
1451 print "** Monitor flushed **\n";
1452 return $bug;
1453}
1454
1455sub save_logs {
1456 my ($result, $basedir) = @_;
1457 my @t = localtime;
1458 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1459 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1460
1461 my $type = $build_type;
1462 if ($type =~ /useconfig/) {
1463 $type = "useconfig";
1464 }
1465
1466 my $dir = "$machine-$test_type-$type-$result-$date";
1467
1468 $dir = "$basedir/$dir";
1469
1470 if (!-d $dir) {
1471 mkpath($dir) or
1472 die "can't create $dir";
1473 }
1474
1475 my %files = (
1476 "config" => $output_config,
1477 "buildlog" => $buildlog,
1478 "dmesg" => $dmesg,
1479 "testlog" => $testlog,
1480 );
1481
1482 while (my ($name, $source) = each(%files)) {
1483 if (-f "$source") {
1484 cp "$source", "$dir/$name" or
1485 die "failed to copy $source";
1486 }
1487 }
1488
1489 doprint "*** Saved info to $dir ***\n";
1490}
1491
1492sub fail {
1493
1494 if (defined($post_test)) {
1495 run_command $post_test;
1496 }
1497
1498 if ($die_on_failure) {
1499 dodie @_;
1500 }
1501
1502 doprint "FAILED\n";
1503
1504 my $i = $iteration;
1505
1506 # no need to reboot for just building.
1507 if (!do_not_reboot) {
1508 doprint "REBOOTING\n";
1509 reboot_to_good $sleep_time;
1510 }
1511
1512 my $name = "";
1513
1514 if (defined($test_name)) {
1515 $name = " ($test_name)";
1516 }
1517
1518 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1519 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1520 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1521 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1522 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1523
1524 if (defined($store_failures)) {
1525 save_logs "fail", $store_failures;
1526 }
1527
1528 return 1;
1529}
1530
1531sub run_command {
1532 my ($command) = @_;
1533 my $dolog = 0;
1534 my $dord = 0;
1535 my $pid;
1536
1537 $command =~ s/\$SSH_USER/$ssh_user/g;
1538 $command =~ s/\$MACHINE/$machine/g;
1539
1540 doprint("$command ... ");
1541
1542 $pid = open(CMD, "$command 2>&1 |") or
1543 (fail "unable to exec $command" and return 0);
1544
1545 if (defined($opt{"LOG_FILE"})) {
1546 open(LOG, ">>$opt{LOG_FILE}") or
1547 dodie "failed to write to log";
1548 $dolog = 1;
1549 }
1550
1551 if (defined($redirect)) {
1552 open (RD, ">$redirect") or
1553 dodie "failed to write to redirect $redirect";
1554 $dord = 1;
1555 }
1556
1557 while (<CMD>) {
1558 print LOG if ($dolog);
1559 print RD if ($dord);
1560 }
1561
1562 waitpid($pid, 0);
1563 my $failed = $?;
1564
1565 close(CMD);
1566 close(LOG) if ($dolog);
1567 close(RD) if ($dord);
1568
1569 if ($failed) {
1570 doprint "FAILED!\n";
1571 } else {
1572 doprint "SUCCESS\n";
1573 }
1574
1575 return !$failed;
1576}
1577
1578sub run_ssh {
1579 my ($cmd) = @_;
1580 my $cp_exec = $ssh_exec;
1581
1582 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1583 return run_command "$cp_exec";
1584}
1585
1586sub run_scp {
1587 my ($src, $dst, $cp_scp) = @_;
1588
1589 $cp_scp =~ s/\$SRC_FILE/$src/g;
1590 $cp_scp =~ s/\$DST_FILE/$dst/g;
1591
1592 return run_command "$cp_scp";
1593}
1594
1595sub run_scp_install {
1596 my ($src, $dst) = @_;
1597
1598 my $cp_scp = $scp_to_target_install;
1599
1600 return run_scp($src, $dst, $cp_scp);
1601}
1602
1603sub run_scp_mod {
1604 my ($src, $dst) = @_;
1605
1606 my $cp_scp = $scp_to_target;
1607
1608 return run_scp($src, $dst, $cp_scp);
1609}
1610
1611sub get_grub2_index {
1612
1613 return if (defined($grub_number) && defined($last_grub_menu) &&
1614 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1615 $last_machine eq $machine);
1616
1617 doprint "Find grub2 menu ... ";
1618 $grub_number = -1;
1619
1620 my $ssh_grub = $ssh_exec;
1621 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1622
1623 open(IN, "$ssh_grub |")
1624 or die "unable to get $grub_file";
1625
1626 my $found = 0;
1627
1628 while (<IN>) {
1629 if (/^menuentry.*$grub_menu/) {
1630 $grub_number++;
1631 $found = 1;
1632 last;
1633 } elsif (/^menuentry\s/) {
1634 $grub_number++;
1635 }
1636 }
1637 close(IN);
1638
1639 die "Could not find '$grub_menu' in $grub_file on $machine"
1640 if (!$found);
1641 doprint "$grub_number\n";
1642 $last_grub_menu = $grub_menu;
1643 $last_machine = $machine;
1644}
1645
1646sub get_grub_index {
1647
1648 if ($reboot_type eq "grub2") {
1649 get_grub2_index;
1650 return;
1651 }
1652
1653 if ($reboot_type ne "grub") {
1654 return;
1655 }
1656 return if (defined($grub_number) && defined($last_grub_menu) &&
1657 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1658 $last_machine eq $machine);
1659
1660 doprint "Find grub menu ... ";
1661 $grub_number = -1;
1662
1663 my $ssh_grub = $ssh_exec;
1664 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1665
1666 open(IN, "$ssh_grub |")
1667 or die "unable to get menu.lst";
1668
1669 my $found = 0;
1670
1671 while (<IN>) {
1672 if (/^\s*title\s+$grub_menu\s*$/) {
1673 $grub_number++;
1674 $found = 1;
1675 last;
1676 } elsif (/^\s*title\s/) {
1677 $grub_number++;
1678 }
1679 }
1680 close(IN);
1681
1682 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1683 if (!$found);
1684 doprint "$grub_number\n";
1685 $last_grub_menu = $grub_menu;
1686 $last_machine = $machine;
1687}
1688
1689sub wait_for_input
1690{
1691 my ($fp, $time) = @_;
1692 my $rin;
1693 my $ready;
1694 my $line;
1695 my $ch;
1696
1697 if (!defined($time)) {
1698 $time = $timeout;
1699 }
1700
1701 $rin = '';
1702 vec($rin, fileno($fp), 1) = 1;
1703 ($ready, $time) = select($rin, undef, undef, $time);
1704
1705 $line = "";
1706
1707 # try to read one char at a time
1708 while (sysread $fp, $ch, 1) {
1709 $line .= $ch;
1710 last if ($ch eq "\n");
1711 }
1712
1713 if (!length($line)) {
1714 return undef;
1715 }
1716
1717 return $line;
1718}
1719
1720sub reboot_to {
1721 if (defined($switch_to_test)) {
1722 run_command $switch_to_test;
1723 }
1724
1725 if ($reboot_type eq "grub") {
1726 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1727 } elsif ($reboot_type eq "grub2") {
1728 run_ssh "$grub_reboot $grub_number";
1729 } elsif ($reboot_type eq "syslinux") {
1730 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
1731 } elsif (defined $reboot_script) {
1732 run_command "$reboot_script";
1733 }
1734 reboot;
1735}
1736
1737sub get_sha1 {
1738 my ($commit) = @_;
1739
1740 doprint "git rev-list --max-count=1 $commit ... ";
1741 my $sha1 = `git rev-list --max-count=1 $commit`;
1742 my $ret = $?;
1743
1744 logit $sha1;
1745
1746 if ($ret) {
1747 doprint "FAILED\n";
1748 dodie "Failed to get git $commit";
1749 }
1750
1751 print "SUCCESS\n";
1752
1753 chomp $sha1;
1754
1755 return $sha1;
1756}
1757
1758sub monitor {
1759 my $booted = 0;
1760 my $bug = 0;
1761 my $bug_ignored = 0;
1762 my $skip_call_trace = 0;
1763 my $loops;
1764
1765 wait_for_monitor 5;
1766
1767 my $line;
1768 my $full_line = "";
1769
1770 open(DMESG, "> $dmesg") or
1771 die "unable to write to $dmesg";
1772
1773 reboot_to;
1774
1775 my $success_start;
1776 my $failure_start;
1777 my $monitor_start = time;
1778 my $done = 0;
1779 my $version_found = 0;
1780
1781 while (!$done) {
1782
1783 if ($bug && defined($stop_after_failure) &&
1784 $stop_after_failure >= 0) {
1785 my $time = $stop_after_failure - (time - $failure_start);
1786 $line = wait_for_input($monitor_fp, $time);
1787 if (!defined($line)) {
1788 doprint "bug timed out after $booted_timeout seconds\n";
1789 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1790 last;
1791 }
1792 } elsif ($booted) {
1793 $line = wait_for_input($monitor_fp, $booted_timeout);
1794 if (!defined($line)) {
1795 my $s = $booted_timeout == 1 ? "" : "s";
1796 doprint "Successful boot found: break after $booted_timeout second$s\n";
1797 last;
1798 }
1799 } else {
1800 $line = wait_for_input($monitor_fp);
1801 if (!defined($line)) {
1802 my $s = $timeout == 1 ? "" : "s";
1803 doprint "Timed out after $timeout second$s\n";
1804 last;
1805 }
1806 }
1807
1808 doprint $line;
1809 print DMESG $line;
1810
1811 # we are not guaranteed to get a full line
1812 $full_line .= $line;
1813
1814 if ($full_line =~ /$success_line/) {
1815 $booted = 1;
1816 $success_start = time;
1817 }
1818
1819 if ($booted && defined($stop_after_success) &&
1820 $stop_after_success >= 0) {
1821 my $now = time;
1822 if ($now - $success_start >= $stop_after_success) {
1823 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1824 last;
1825 }
1826 }
1827
1828 if ($full_line =~ /\[ backtrace testing \]/) {
1829 $skip_call_trace = 1;
1830 }
1831
1832 if ($full_line =~ /call trace:/i) {
1833 if (!$bug && !$skip_call_trace) {
1834 if ($ignore_errors) {
1835 $bug_ignored = 1;
1836 } else {
1837 $bug = 1;
1838 $failure_start = time;
1839 }
1840 }
1841 }
1842
1843 if ($bug && defined($stop_after_failure) &&
1844 $stop_after_failure >= 0) {
1845 my $now = time;
1846 if ($now - $failure_start >= $stop_after_failure) {
1847 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1848 last;
1849 }
1850 }
1851
1852 if ($full_line =~ /\[ end of backtrace testing \]/) {
1853 $skip_call_trace = 0;
1854 }
1855
1856 if ($full_line =~ /Kernel panic -/) {
1857 $failure_start = time;
1858 $bug = 1;
1859 }
1860
1861 # Detect triple faults by testing the banner
1862 if ($full_line =~ /\bLinux version (\S+).*\n/) {
1863 if ($1 eq $version) {
1864 $version_found = 1;
1865 } elsif ($version_found && $detect_triplefault) {
1866 # We already booted into the kernel we are testing,
1867 # but now we booted into another kernel?
1868 # Consider this a triple fault.
1869 doprint "Already booted in Linux kernel $version, but now\n";
1870 doprint "we booted into Linux kernel $1.\n";
1871 doprint "Assuming that this is a triple fault.\n";
1872 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
1873 last;
1874 }
1875 }
1876
1877 if ($line =~ /\n/) {
1878 $full_line = "";
1879 }
1880
1881 if ($stop_test_after > 0 && !$booted && !$bug) {
1882 if (time - $monitor_start > $stop_test_after) {
1883 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
1884 $done = 1;
1885 }
1886 }
1887 }
1888
1889 close(DMESG);
1890
1891 if ($bug) {
1892 return 0 if ($in_bisect);
1893 fail "failed - got a bug report" and return 0;
1894 }
1895
1896 if (!$booted) {
1897 return 0 if ($in_bisect);
1898 fail "failed - never got a boot prompt." and return 0;
1899 }
1900
1901 if ($bug_ignored) {
1902 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
1903 }
1904
1905 return 1;
1906}
1907
1908sub eval_kernel_version {
1909 my ($option) = @_;
1910
1911 $option =~ s/\$KERNEL_VERSION/$version/g;
1912
1913 return $option;
1914}
1915
1916sub do_post_install {
1917
1918 return if (!defined($post_install));
1919
1920 my $cp_post_install = eval_kernel_version $post_install;
1921 run_command "$cp_post_install" or
1922 dodie "Failed to run post install";
1923}
1924
1925# Sometimes the reboot fails, and will hang. We try to ssh to the box
1926# and if we fail, we force another reboot, that should powercycle it.
1927sub test_booted {
1928 if (!run_ssh "echo testing connection") {
1929 reboot $sleep_time;
1930 }
1931}
1932
1933sub install {
1934
1935 return if ($no_install);
1936
1937 if (defined($pre_install)) {
1938 my $cp_pre_install = eval_kernel_version $pre_install;
1939 run_command "$cp_pre_install" or
1940 dodie "Failed to run pre install";
1941 }
1942
1943 my $cp_target = eval_kernel_version $target_image;
1944
1945 test_booted;
1946
1947 run_scp_install "$outputdir/$build_target", "$cp_target" or
1948 dodie "failed to copy image";
1949
1950 my $install_mods = 0;
1951
1952 # should we process modules?
1953 $install_mods = 0;
1954 open(IN, "$output_config") or dodie("Can't read config file");
1955 while (<IN>) {
1956 if (/CONFIG_MODULES(=y)?/) {
1957 if (defined($1)) {
1958 $install_mods = 1;
1959 last;
1960 }
1961 }
1962 }
1963 close(IN);
1964
1965 if (!$install_mods) {
1966 do_post_install;
1967 doprint "No modules needed\n";
1968 return;
1969 }
1970
1971 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
1972 dodie "Failed to install modules";
1973
1974 my $modlib = "/lib/modules/$version";
1975 my $modtar = "ktest-mods.tar.bz2";
1976
1977 run_ssh "rm -rf $modlib" or
1978 dodie "failed to remove old mods: $modlib";
1979
1980 # would be nice if scp -r did not follow symbolic links
1981 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
1982 dodie "making tarball";
1983
1984 run_scp_mod "$tmpdir/$modtar", "/tmp" or
1985 dodie "failed to copy modules";
1986
1987 unlink "$tmpdir/$modtar";
1988
1989 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
1990 dodie "failed to tar modules";
1991
1992 run_ssh "rm -f /tmp/$modtar";
1993
1994 do_post_install;
1995}
1996
1997sub get_version {
1998 # get the release name
1999 return if ($have_version);
2000 doprint "$make kernelrelease ... ";
2001 $version = `$make kernelrelease | tail -1`;
2002 chomp($version);
2003 doprint "$version\n";
2004 $have_version = 1;
2005}
2006
2007sub start_monitor_and_boot {
2008 # Make sure the stable kernel has finished booting
2009
2010 # Install bisects, don't need console
2011 if (defined $console) {
2012 start_monitor;
2013 wait_for_monitor 5;
2014 end_monitor;
2015 }
2016
2017 get_grub_index;
2018 get_version;
2019 install;
2020
2021 start_monitor if (defined $console);
2022 return monitor;
2023}
2024
2025my $check_build_re = ".*:.*(warning|error|Error):.*";
2026my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2027
2028sub process_warning_line {
2029 my ($line) = @_;
2030
2031 chomp $line;
2032
2033 # for distcc heterogeneous systems, some compilers
2034 # do things differently causing warning lines
2035 # to be slightly different. This makes an attempt
2036 # to fixe those issues.
2037
2038 # chop off the index into the line
2039 # using distcc, some compilers give different indexes
2040 # depending on white space
2041 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2042
2043 # Some compilers use UTF-8 extended for quotes and some don't.
2044 $line =~ s/$utf8_quote/'/g;
2045
2046 return $line;
2047}
2048
2049# Read buildlog and check against warnings file for any
2050# new warnings.
2051#
2052# Returns 1 if OK
2053# 0 otherwise
2054sub check_buildlog {
2055 return 1 if (!defined $warnings_file);
2056
2057 my %warnings_list;
2058
2059 # Failed builds should not reboot the target
2060 my $save_no_reboot = $no_reboot;
2061 $no_reboot = 1;
2062
2063 if (-f $warnings_file) {
2064 open(IN, $warnings_file) or
2065 dodie "Error opening $warnings_file";
2066
2067 while (<IN>) {
2068 if (/$check_build_re/) {
2069 my $warning = process_warning_line $_;
2070
2071 $warnings_list{$warning} = 1;
2072 }
2073 }
2074 close(IN);
2075 }
2076
2077 # If warnings file didn't exist, and WARNINGS_FILE exist,
2078 # then we fail on any warning!
2079
2080 open(IN, $buildlog) or dodie "Can't open $buildlog";
2081 while (<IN>) {
2082 if (/$check_build_re/) {
2083 my $warning = process_warning_line $_;
2084
2085 if (!defined $warnings_list{$warning}) {
2086 fail "New warning found (not in $warnings_file)\n$_\n";
2087 $no_reboot = $save_no_reboot;
2088 return 0;
2089 }
2090 }
2091 }
2092 $no_reboot = $save_no_reboot;
2093 close(IN);
2094}
2095
2096sub check_patch_buildlog {
2097 my ($patch) = @_;
2098
2099 my @files = `git show $patch | diffstat -l`;
2100
2101 foreach my $file (@files) {
2102 chomp $file;
2103 }
2104
2105 open(IN, "git show $patch |") or
2106 dodie "failed to show $patch";
2107 while (<IN>) {
2108 if (m,^--- a/(.*),) {
2109 chomp $1;
2110 $files[$#files] = $1;
2111 }
2112 }
2113 close(IN);
2114
2115 open(IN, $buildlog) or dodie "Can't open $buildlog";
2116 while (<IN>) {
2117 if (/^\s*(.*?):.*(warning|error)/) {
2118 my $err = $1;
2119 foreach my $file (@files) {
2120 my $fullpath = "$builddir/$file";
2121 if ($file eq $err || $fullpath eq $err) {
2122 fail "$file built with warnings" and return 0;
2123 }
2124 }
2125 }
2126 }
2127 close(IN);
2128
2129 return 1;
2130}
2131
2132sub apply_min_config {
2133 my $outconfig = "$output_config.new";
2134
2135 # Read the config file and remove anything that
2136 # is in the force_config hash (from minconfig and others)
2137 # then add the force config back.
2138
2139 doprint "Applying minimum configurations into $output_config.new\n";
2140
2141 open (OUT, ">$outconfig") or
2142 dodie "Can't create $outconfig";
2143
2144 if (-f $output_config) {
2145 open (IN, $output_config) or
2146 dodie "Failed to open $output_config";
2147 while (<IN>) {
2148 if (/^(# )?(CONFIG_[^\s=]*)/) {
2149 next if (defined($force_config{$2}));
2150 }
2151 print OUT;
2152 }
2153 close IN;
2154 }
2155 foreach my $config (keys %force_config) {
2156 print OUT "$force_config{$config}\n";
2157 }
2158 close OUT;
2159
2160 run_command "mv $outconfig $output_config";
2161}
2162
2163sub make_oldconfig {
2164
2165 my @force_list = keys %force_config;
2166
2167 if ($#force_list >= 0) {
2168 apply_min_config;
2169 }
2170
2171 if (!run_command "$make olddefconfig") {
2172 # Perhaps olddefconfig doesn't exist in this version of the kernel
2173 # try oldnoconfig
2174 doprint "olddefconfig failed, trying make oldnoconfig\n";
2175 if (!run_command "$make oldnoconfig") {
2176 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2177 # try a yes '' | oldconfig
2178 run_command "yes '' | $make oldconfig" or
2179 dodie "failed make config oldconfig";
2180 }
2181 }
2182}
2183
2184# read a config file and use this to force new configs.
2185sub load_force_config {
2186 my ($config) = @_;
2187
2188 doprint "Loading force configs from $config\n";
2189 open(IN, $config) or
2190 dodie "failed to read $config";
2191 while (<IN>) {
2192 chomp;
2193 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2194 $force_config{$1} = $_;
2195 } elsif (/^# (CONFIG_\S*) is not set/) {
2196 $force_config{$1} = $_;
2197 }
2198 }
2199 close IN;
2200}
2201
2202sub build {
2203 my ($type) = @_;
2204
2205 unlink $buildlog;
2206
2207 # Failed builds should not reboot the target
2208 my $save_no_reboot = $no_reboot;
2209 $no_reboot = 1;
2210
2211 # Calculate a new version from here.
2212 $have_version = 0;
2213
2214 if (defined($pre_build)) {
2215 my $ret = run_command $pre_build;
2216 if (!$ret && defined($pre_build_die) &&
2217 $pre_build_die) {
2218 dodie "failed to pre_build\n";
2219 }
2220 }
2221
2222 if ($type =~ /^useconfig:(.*)/) {
2223 run_command "cp $1 $output_config" or
2224 dodie "could not copy $1 to .config";
2225
2226 $type = "oldconfig";
2227 }
2228
2229 # old config can ask questions
2230 if ($type eq "oldconfig") {
2231 $type = "olddefconfig";
2232
2233 # allow for empty configs
2234 run_command "touch $output_config";
2235
2236 if (!$noclean) {
2237 run_command "mv $output_config $outputdir/config_temp" or
2238 dodie "moving .config";
2239
2240 run_command "$make mrproper" or dodie "make mrproper";
2241
2242 run_command "mv $outputdir/config_temp $output_config" or
2243 dodie "moving config_temp";
2244 }
2245
2246 } elsif (!$noclean) {
2247 unlink "$output_config";
2248 run_command "$make mrproper" or
2249 dodie "make mrproper";
2250 }
2251
2252 # add something to distinguish this build
2253 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2254 print OUT "$localversion\n";
2255 close(OUT);
2256
2257 if (defined($minconfig)) {
2258 load_force_config($minconfig);
2259 }
2260
2261 if ($type ne "olddefconfig") {
2262 run_command "$make $type" or
2263 dodie "failed make config";
2264 }
2265 # Run old config regardless, to enforce min configurations
2266 make_oldconfig;
2267
2268 $redirect = "$buildlog";
2269 my $build_ret = run_command "$make $build_options";
2270 undef $redirect;
2271
2272 if (defined($post_build)) {
2273 # Because a post build may change the kernel version
2274 # do it now.
2275 get_version;
2276 my $ret = run_command $post_build;
2277 if (!$ret && defined($post_build_die) &&
2278 $post_build_die) {
2279 dodie "failed to post_build\n";
2280 }
2281 }
2282
2283 if (!$build_ret) {
2284 # bisect may need this to pass
2285 if ($in_bisect) {
2286 $no_reboot = $save_no_reboot;
2287 return 0;
2288 }
2289 fail "failed build" and return 0;
2290 }
2291
2292 $no_reboot = $save_no_reboot;
2293
2294 return 1;
2295}
2296
2297sub halt {
2298 if (!run_ssh "halt" or defined($power_off)) {
2299 if (defined($poweroff_after_halt)) {
2300 sleep $poweroff_after_halt;
2301 run_command "$power_off";
2302 }
2303 } else {
2304 # nope? the zap it!
2305 run_command "$power_off";
2306 }
2307}
2308
2309sub success {
2310 my ($i) = @_;
2311
2312 if (defined($post_test)) {
2313 run_command $post_test;
2314 }
2315
2316 $successes++;
2317
2318 my $name = "";
2319
2320 if (defined($test_name)) {
2321 $name = " ($test_name)";
2322 }
2323
2324 doprint "\n\n*******************************************\n";
2325 doprint "*******************************************\n";
2326 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2327 doprint "*******************************************\n";
2328 doprint "*******************************************\n";
2329
2330 if (defined($store_successes)) {
2331 save_logs "success", $store_successes;
2332 }
2333
2334 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2335 doprint "Reboot and wait $sleep_time seconds\n";
2336 reboot_to_good $sleep_time;
2337 }
2338}
2339
2340sub answer_bisect {
2341 for (;;) {
2342 doprint "Pass or fail? [p/f]";
2343 my $ans = <STDIN>;
2344 chomp $ans;
2345 if ($ans eq "p" || $ans eq "P") {
2346 return 1;
2347 } elsif ($ans eq "f" || $ans eq "F") {
2348 return 0;
2349 } else {
2350 print "Please answer 'P' or 'F'\n";
2351 }
2352 }
2353}
2354
2355sub child_run_test {
2356 my $failed = 0;
2357
2358 # child should have no power
2359 $reboot_on_error = 0;
2360 $poweroff_on_error = 0;
2361 $die_on_failure = 1;
2362
2363 $redirect = "$testlog";
2364 run_command $run_test or $failed = 1;
2365 undef $redirect;
2366
2367 exit $failed;
2368}
2369
2370my $child_done;
2371
2372sub child_finished {
2373 $child_done = 1;
2374}
2375
2376sub do_run_test {
2377 my $child_pid;
2378 my $child_exit;
2379 my $line;
2380 my $full_line;
2381 my $bug = 0;
2382 my $bug_ignored = 0;
2383
2384 wait_for_monitor 1;
2385
2386 doprint "run test $run_test\n";
2387
2388 $child_done = 0;
2389
2390 $SIG{CHLD} = qw(child_finished);
2391
2392 $child_pid = fork;
2393
2394 child_run_test if (!$child_pid);
2395
2396 $full_line = "";
2397
2398 do {
2399 $line = wait_for_input($monitor_fp, 1);
2400 if (defined($line)) {
2401
2402 # we are not guaranteed to get a full line
2403 $full_line .= $line;
2404 doprint $line;
2405
2406 if ($full_line =~ /call trace:/i) {
2407 if ($ignore_errors) {
2408 $bug_ignored = 1;
2409 } else {
2410 $bug = 1;
2411 }
2412 }
2413
2414 if ($full_line =~ /Kernel panic -/) {
2415 $bug = 1;
2416 }
2417
2418 if ($line =~ /\n/) {
2419 $full_line = "";
2420 }
2421 }
2422 } while (!$child_done && !$bug);
2423
2424 if (!$bug && $bug_ignored) {
2425 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2426 }
2427
2428 if ($bug) {
2429 my $failure_start = time;
2430 my $now;
2431 do {
2432 $line = wait_for_input($monitor_fp, 1);
2433 if (defined($line)) {
2434 doprint $line;
2435 }
2436 $now = time;
2437 if ($now - $failure_start >= $stop_after_failure) {
2438 last;
2439 }
2440 } while (defined($line));
2441
2442 doprint "Detected kernel crash!\n";
2443 # kill the child with extreme prejudice
2444 kill 9, $child_pid;
2445 }
2446
2447 waitpid $child_pid, 0;
2448 $child_exit = $?;
2449
2450 if (!$bug && $in_bisect) {
2451 if (defined($bisect_ret_good)) {
2452 if ($child_exit == $bisect_ret_good) {
2453 return 1;
2454 }
2455 }
2456 if (defined($bisect_ret_skip)) {
2457 if ($child_exit == $bisect_ret_skip) {
2458 return -1;
2459 }
2460 }
2461 if (defined($bisect_ret_abort)) {
2462 if ($child_exit == $bisect_ret_abort) {
2463 fail "test abort" and return -2;
2464 }
2465 }
2466 if (defined($bisect_ret_bad)) {
2467 if ($child_exit == $bisect_ret_skip) {
2468 return 0;
2469 }
2470 }
2471 if (defined($bisect_ret_default)) {
2472 if ($bisect_ret_default eq "good") {
2473 return 1;
2474 } elsif ($bisect_ret_default eq "bad") {
2475 return 0;
2476 } elsif ($bisect_ret_default eq "skip") {
2477 return -1;
2478 } elsif ($bisect_ret_default eq "abort") {
2479 return -2;
2480 } else {
2481 fail "unknown default action: $bisect_ret_default"
2482 and return -2;
2483 }
2484 }
2485 }
2486
2487 if ($bug || $child_exit) {
2488 return 0 if $in_bisect;
2489 fail "test failed" and return 0;
2490 }
2491 return 1;
2492}
2493
2494sub run_git_bisect {
2495 my ($command) = @_;
2496
2497 doprint "$command ... ";
2498
2499 my $output = `$command 2>&1`;
2500 my $ret = $?;
2501
2502 logit $output;
2503
2504 if ($ret) {
2505 doprint "FAILED\n";
2506 dodie "Failed to git bisect";
2507 }
2508
2509 doprint "SUCCESS\n";
2510 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2511 doprint "$1 [$2]\n";
2512 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2513 $bisect_bad_commit = $1;
2514 doprint "Found bad commit... $1\n";
2515 return 0;
2516 } else {
2517 # we already logged it, just print it now.
2518 print $output;
2519 }
2520
2521 return 1;
2522}
2523
2524sub bisect_reboot {
2525 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2526 reboot_to_good $bisect_sleep_time;
2527}
2528
2529# returns 1 on success, 0 on failure, -1 on skip
2530sub run_bisect_test {
2531 my ($type, $buildtype) = @_;
2532
2533 my $failed = 0;
2534 my $result;
2535 my $output;
2536 my $ret;
2537
2538 $in_bisect = 1;
2539
2540 build $buildtype or $failed = 1;
2541
2542 if ($type ne "build") {
2543 if ($failed && $bisect_skip) {
2544 $in_bisect = 0;
2545 return -1;
2546 }
2547 dodie "Failed on build" if $failed;
2548
2549 # Now boot the box
2550 start_monitor_and_boot or $failed = 1;
2551
2552 if ($type ne "boot") {
2553 if ($failed && $bisect_skip) {
2554 end_monitor;
2555 bisect_reboot;
2556 $in_bisect = 0;
2557 return -1;
2558 }
2559 dodie "Failed on boot" if $failed;
2560
2561 do_run_test or $failed = 1;
2562 }
2563 end_monitor;
2564 }
2565
2566 if ($failed) {
2567 $result = 0;
2568 } else {
2569 $result = 1;
2570 }
2571
2572 # reboot the box to a kernel we can ssh to
2573 if ($type ne "build") {
2574 bisect_reboot;
2575 }
2576 $in_bisect = 0;
2577
2578 return $result;
2579}
2580
2581sub run_bisect {
2582 my ($type) = @_;
2583 my $buildtype = "oldconfig";
2584
2585 # We should have a minconfig to use?
2586 if (defined($minconfig)) {
2587 $buildtype = "useconfig:$minconfig";
2588 }
2589
2590 # If the user sets bisect_tries to less than 1, then no tries
2591 # is a success.
2592 my $ret = 1;
2593
2594 # Still let the user manually decide that though.
2595 if ($bisect_tries < 1 && $bisect_manual) {
2596 $ret = answer_bisect;
2597 }
2598
2599 for (my $i = 0; $i < $bisect_tries; $i++) {
2600 if ($bisect_tries > 1) {
2601 my $t = $i + 1;
2602 doprint("Running bisect trial $t of $bisect_tries:\n");
2603 }
2604 $ret = run_bisect_test $type, $buildtype;
2605
2606 if ($bisect_manual) {
2607 $ret = answer_bisect;
2608 }
2609
2610 last if (!$ret);
2611 }
2612
2613 # Are we looking for where it worked, not failed?
2614 if ($reverse_bisect && $ret >= 0) {
2615 $ret = !$ret;
2616 }
2617
2618 if ($ret > 0) {
2619 return "good";
2620 } elsif ($ret == 0) {
2621 return "bad";
2622 } elsif ($bisect_skip) {
2623 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2624 return "skip";
2625 }
2626}
2627
2628sub update_bisect_replay {
2629 my $tmp_log = "$tmpdir/ktest_bisect_log";
2630 run_command "git bisect log > $tmp_log" or
2631 die "can't create bisect log";
2632 return $tmp_log;
2633}
2634
2635sub bisect {
2636 my ($i) = @_;
2637
2638 my $result;
2639
2640 die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2641 die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2642 die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2643
2644 my $good = $bisect_good;
2645 my $bad = $bisect_bad;
2646 my $type = $bisect_type;
2647 my $start = $bisect_start;
2648 my $replay = $bisect_replay;
2649 my $start_files = $bisect_files;
2650
2651 if (defined($start_files)) {
2652 $start_files = " -- " . $start_files;
2653 } else {
2654 $start_files = "";
2655 }
2656
2657 # convert to true sha1's
2658 $good = get_sha1($good);
2659 $bad = get_sha1($bad);
2660
2661 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2662 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2663 $reverse_bisect = 1;
2664 } else {
2665 $reverse_bisect = 0;
2666 }
2667
2668 # Can't have a test without having a test to run
2669 if ($type eq "test" && !defined($run_test)) {
2670 $type = "boot";
2671 }
2672
2673 # Check if a bisect was running
2674 my $bisect_start_file = "$builddir/.git/BISECT_START";
2675
2676 my $check = $bisect_check;
2677 my $do_check = defined($check) && $check ne "0";
2678
2679 if ( -f $bisect_start_file ) {
2680 print "Bisect in progress found\n";
2681 if ($do_check) {
2682 print " If you say yes, then no checks of good or bad will be done\n";
2683 }
2684 if (defined($replay)) {
2685 print "** BISECT_REPLAY is defined in config file **";
2686 print " Ignore config option and perform new git bisect log?\n";
2687 if (read_ync " (yes, no, or cancel) ") {
2688 $replay = update_bisect_replay;
2689 $do_check = 0;
2690 }
2691 } elsif (read_yn "read git log and continue?") {
2692 $replay = update_bisect_replay;
2693 $do_check = 0;
2694 }
2695 }
2696
2697 if ($do_check) {
2698
2699 # get current HEAD
2700 my $head = get_sha1("HEAD");
2701
2702 if ($check ne "good") {
2703 doprint "TESTING BISECT BAD [$bad]\n";
2704 run_command "git checkout $bad" or
2705 die "Failed to checkout $bad";
2706
2707 $result = run_bisect $type;
2708
2709 if ($result ne "bad") {
2710 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2711 }
2712 }
2713
2714 if ($check ne "bad") {
2715 doprint "TESTING BISECT GOOD [$good]\n";
2716 run_command "git checkout $good" or
2717 die "Failed to checkout $good";
2718
2719 $result = run_bisect $type;
2720
2721 if ($result ne "good") {
2722 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2723 }
2724 }
2725
2726 # checkout where we started
2727 run_command "git checkout $head" or
2728 die "Failed to checkout $head";
2729 }
2730
2731 run_command "git bisect start$start_files" or
2732 dodie "could not start bisect";
2733
2734 run_command "git bisect good $good" or
2735 dodie "could not set bisect good to $good";
2736
2737 run_git_bisect "git bisect bad $bad" or
2738 dodie "could not set bisect bad to $bad";
2739
2740 if (defined($replay)) {
2741 run_command "git bisect replay $replay" or
2742 dodie "failed to run replay";
2743 }
2744
2745 if (defined($start)) {
2746 run_command "git checkout $start" or
2747 dodie "failed to checkout $start";
2748 }
2749
2750 my $test;
2751 do {
2752 $result = run_bisect $type;
2753 $test = run_git_bisect "git bisect $result";
2754 } while ($test);
2755
2756 run_command "git bisect log" or
2757 dodie "could not capture git bisect log";
2758
2759 run_command "git bisect reset" or
2760 dodie "could not reset git bisect";
2761
2762 doprint "Bad commit was [$bisect_bad_commit]\n";
2763
2764 success $i;
2765}
2766
2767# config_ignore holds the configs that were set (or unset) for
2768# a good config and we will ignore these configs for the rest
2769# of a config bisect. These configs stay as they were.
2770my %config_ignore;
2771
2772# config_set holds what all configs were set as.
2773my %config_set;
2774
2775# config_off holds the set of configs that the bad config had disabled.
2776# We need to record them and set them in the .config when running
2777# olddefconfig, because olddefconfig keeps the defaults.
2778my %config_off;
2779
2780# config_off_tmp holds a set of configs to turn off for now
2781my @config_off_tmp;
2782
2783# config_list is the set of configs that are being tested
2784my %config_list;
2785my %null_config;
2786
2787my %dependency;
2788
2789sub assign_configs {
2790 my ($hash, $config) = @_;
2791
2792 open (IN, $config)
2793 or dodie "Failed to read $config";
2794
2795 while (<IN>) {
2796 if (/^((CONFIG\S*)=.*)/) {
2797 ${$hash}{$2} = $1;
2798 }
2799 }
2800
2801 close(IN);
2802}
2803
2804sub process_config_ignore {
2805 my ($config) = @_;
2806
2807 assign_configs \%config_ignore, $config;
2808}
2809
2810sub read_current_config {
2811 my ($config_ref) = @_;
2812
2813 %{$config_ref} = ();
2814 undef %{$config_ref};
2815
2816 my @key = keys %{$config_ref};
2817 if ($#key >= 0) {
2818 print "did not delete!\n";
2819 exit;
2820 }
2821 open (IN, "$output_config");
2822
2823 while (<IN>) {
2824 if (/^(CONFIG\S+)=(.*)/) {
2825 ${$config_ref}{$1} = $2;
2826 }
2827 }
2828 close(IN);
2829}
2830
2831sub get_dependencies {
2832 my ($config) = @_;
2833
2834 my $arr = $dependency{$config};
2835 if (!defined($arr)) {
2836 return ();
2837 }
2838
2839 my @deps = @{$arr};
2840
2841 foreach my $dep (@{$arr}) {
2842 print "ADD DEP $dep\n";
2843 @deps = (@deps, get_dependencies $dep);
2844 }
2845
2846 return @deps;
2847}
2848
2849sub create_config {
2850 my @configs = @_;
2851
2852 open(OUT, ">$output_config") or dodie "Can not write to $output_config";
2853
2854 foreach my $config (@configs) {
2855 print OUT "$config_set{$config}\n";
2856 my @deps = get_dependencies $config;
2857 foreach my $dep (@deps) {
2858 print OUT "$config_set{$dep}\n";
2859 }
2860 }
2861
2862 # turn off configs to keep off
2863 foreach my $config (keys %config_off) {
2864 print OUT "# $config is not set\n";
2865 }
2866
2867 # turn off configs that should be off for now
2868 foreach my $config (@config_off_tmp) {
2869 print OUT "# $config is not set\n";
2870 }
2871
2872 foreach my $config (keys %config_ignore) {
2873 print OUT "$config_ignore{$config}\n";
2874 }
2875 close(OUT);
2876
2877 make_oldconfig;
2878}
2879
2880sub compare_configs {
2881 my (%a, %b) = @_;
2882
2883 foreach my $item (keys %a) {
2884 if (!defined($b{$item})) {
2885 print "diff $item\n";
2886 return 1;
2887 }
2888 delete $b{$item};
2889 }
2890
2891 my @keys = keys %b;
2892 if ($#keys) {
2893 print "diff2 $keys[0]\n";
2894 }
2895 return -1 if ($#keys >= 0);
2896
2897 return 0;
2898}
2899
2900sub run_config_bisect_test {
2901 my ($type) = @_;
2902
2903 return run_bisect_test $type, "oldconfig";
2904}
2905
2906sub process_passed {
2907 my (%configs) = @_;
2908
2909 doprint "These configs had no failure: (Enabling them for further compiles)\n";
2910 # Passed! All these configs are part of a good compile.
2911 # Add them to the min options.
2912 foreach my $config (keys %configs) {
2913 if (defined($config_list{$config})) {
2914 doprint " removing $config\n";
2915 $config_ignore{$config} = $config_list{$config};
2916 delete $config_list{$config};
2917 }
2918 }
2919 doprint "config copied to $outputdir/config_good\n";
2920 run_command "cp -f $output_config $outputdir/config_good";
2921}
2922
2923sub process_failed {
2924 my ($config) = @_;
2925
2926 doprint "\n\n***************************************\n";
2927 doprint "Found bad config: $config\n";
2928 doprint "***************************************\n\n";
2929}
2930
2931sub run_config_bisect {
2932
2933 my @start_list = keys %config_list;
2934
2935 if ($#start_list < 0) {
2936 doprint "No more configs to test!!!\n";
2937 return -1;
2938 }
2939
2940 doprint "***** RUN TEST ***\n";
2941 my $type = $config_bisect_type;
2942 my $ret;
2943 my %current_config;
2944
2945 my $count = $#start_list + 1;
2946 doprint " $count configs to test\n";
2947
2948 my $half = int($#start_list / 2);
2949
2950 do {
2951 my @tophalf = @start_list[0 .. $half];
2952
2953 # keep the bottom half off
2954 if ($half < $#start_list) {
2955 @config_off_tmp = @start_list[$half + 1 .. $#start_list];
2956 } else {
2957 @config_off_tmp = ();
2958 }
2959
2960 create_config @tophalf;
2961 read_current_config \%current_config;
2962
2963 $count = $#tophalf + 1;
2964 doprint "Testing $count configs\n";
2965 my $found = 0;
2966 # make sure we test something
2967 foreach my $config (@tophalf) {
2968 if (defined($current_config{$config})) {
2969 logit " $config\n";
2970 $found = 1;
2971 }
2972 }
2973 if (!$found) {
2974 # try the other half
2975 doprint "Top half produced no set configs, trying bottom half\n";
2976
2977 # keep the top half off
2978 @config_off_tmp = @tophalf;
2979 @tophalf = @start_list[$half + 1 .. $#start_list];
2980
2981 create_config @tophalf;
2982 read_current_config \%current_config;
2983 foreach my $config (@tophalf) {
2984 if (defined($current_config{$config})) {
2985 logit " $config\n";
2986 $found = 1;
2987 }
2988 }
2989 if (!$found) {
2990 doprint "Failed: Can't make new config with current configs\n";
2991 foreach my $config (@start_list) {
2992 doprint " CONFIG: $config\n";
2993 }
2994 return -1;
2995 }
2996 $count = $#tophalf + 1;
2997 doprint "Testing $count configs\n";
2998 }
2999
3000 $ret = run_config_bisect_test $type;
3001 if ($bisect_manual) {
3002 $ret = answer_bisect;
3003 }
3004 if ($ret) {
3005 process_passed %current_config;
3006 return 0;
3007 }
3008
3009 doprint "This config had a failure.\n";
3010 doprint "Removing these configs that were not set in this config:\n";
3011 doprint "config copied to $outputdir/config_bad\n";
3012 run_command "cp -f $output_config $outputdir/config_bad";
3013
3014 # A config exists in this group that was bad.
3015 foreach my $config (keys %config_list) {
3016 if (!defined($current_config{$config})) {
3017 doprint " removing $config\n";
3018 delete $config_list{$config};
3019 }
3020 }
3021
3022 @start_list = @tophalf;
3023
3024 if ($#start_list == 0) {
3025 process_failed $start_list[0];
3026 return 1;
3027 }
3028
3029 # remove half the configs we are looking at and see if
3030 # they are good.
3031 $half = int($#start_list / 2);
3032 } while ($#start_list > 0);
3033
3034 # we found a single config, try it again unless we are running manually
3035
3036 if ($bisect_manual) {
3037 process_failed $start_list[0];
3038 return 1;
3039 }
3040
3041 my @tophalf = @start_list[0 .. 0];
3042
3043 $ret = run_config_bisect_test $type;
3044 if ($ret) {
3045 process_passed %current_config;
3046 return 0;
3047 }
3048
3049 process_failed $start_list[0];
3050 return 1;
3051}
3052
3053sub config_bisect {
3054 my ($i) = @_;
3055
3056 my $start_config = $config_bisect;
3057
3058 my $tmpconfig = "$tmpdir/use_config";
3059
3060 if (defined($config_bisect_good)) {
3061 process_config_ignore $config_bisect_good;
3062 }
3063
3064 # Make the file with the bad config and the min config
3065 if (defined($minconfig)) {
3066 # read the min config for things to ignore
3067 run_command "cp $minconfig $tmpconfig" or
3068 dodie "failed to copy $minconfig to $tmpconfig";
3069 } else {
3070 unlink $tmpconfig;
3071 }
3072
3073 if (-f $tmpconfig) {
3074 load_force_config($tmpconfig);
3075 process_config_ignore $tmpconfig;
3076 }
3077
3078 # now process the start config
3079 run_command "cp $start_config $output_config" or
3080 dodie "failed to copy $start_config to $output_config";
3081
3082 # read directly what we want to check
3083 my %config_check;
3084 open (IN, $output_config)
3085 or dodie "failed to open $output_config";
3086
3087 while (<IN>) {
3088 if (/^((CONFIG\S*)=.*)/) {
3089 $config_check{$2} = $1;
3090 }
3091 }
3092 close(IN);
3093
3094 # Now run oldconfig with the minconfig
3095 make_oldconfig;
3096
3097 # check to see what we lost (or gained)
3098 open (IN, $output_config)
3099 or dodie "Failed to read $start_config";
3100
3101 my %removed_configs;
3102 my %added_configs;
3103
3104 while (<IN>) {
3105 if (/^((CONFIG\S*)=.*)/) {
3106 # save off all options
3107 $config_set{$2} = $1;
3108 if (defined($config_check{$2})) {
3109 if (defined($config_ignore{$2})) {
3110 $removed_configs{$2} = $1;
3111 } else {
3112 $config_list{$2} = $1;
3113 }
3114 } elsif (!defined($config_ignore{$2})) {
3115 $added_configs{$2} = $1;
3116 $config_list{$2} = $1;
3117 }
3118 } elsif (/^# ((CONFIG\S*).*)/) {
3119 # Keep these configs disabled
3120 $config_set{$2} = $1;
3121 $config_off{$2} = $1;
3122 }
3123 }
3124 close(IN);
3125
3126 my @confs = keys %removed_configs;
3127 if ($#confs >= 0) {
3128 doprint "Configs overridden by default configs and removed from check:\n";
3129 foreach my $config (@confs) {
3130 doprint " $config\n";
3131 }
3132 }
3133 @confs = keys %added_configs;
3134 if ($#confs >= 0) {
3135 doprint "Configs appearing in make oldconfig and added:\n";
3136 foreach my $config (@confs) {
3137 doprint " $config\n";
3138 }
3139 }
3140
3141 my %config_test;
3142 my $once = 0;
3143
3144 @config_off_tmp = ();
3145
3146 # Sometimes kconfig does weird things. We must make sure
3147 # that the config we autocreate has everything we need
3148 # to test, otherwise we may miss testing configs, or
3149 # may not be able to create a new config.
3150 # Here we create a config with everything set.
3151 create_config (keys %config_list);
3152 read_current_config \%config_test;
3153 foreach my $config (keys %config_list) {
3154 if (!defined($config_test{$config})) {
3155 if (!$once) {
3156 $once = 1;
3157 doprint "Configs not produced by kconfig (will not be checked):\n";
3158 }
3159 doprint " $config\n";
3160 delete $config_list{$config};
3161 }
3162 }
3163 my $ret;
3164
3165 if (defined($config_bisect_check) && $config_bisect_check) {
3166 doprint " Checking to make sure bad config with min config fails\n";
3167 create_config keys %config_list;
3168 $ret = run_config_bisect_test $config_bisect_type;
3169 if ($ret) {
3170 doprint " FAILED! Bad config with min config boots fine\n";
3171 return -1;
3172 }
3173 doprint " Bad config with min config fails as expected\n";
3174 }
3175
3176 do {
3177 $ret = run_config_bisect;
3178 } while (!$ret);
3179
3180 return $ret if ($ret < 0);
3181
3182 success $i;
3183}
3184
3185sub patchcheck_reboot {
3186 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3187 reboot_to_good $patchcheck_sleep_time;
3188}
3189
3190sub patchcheck {
3191 my ($i) = @_;
3192
3193 die "PATCHCHECK_START[$i] not defined\n"
3194 if (!defined($patchcheck_start));
3195 die "PATCHCHECK_TYPE[$i] not defined\n"
3196 if (!defined($patchcheck_type));
3197
3198 my $start = $patchcheck_start;
3199
3200 my $end = "HEAD";
3201 if (defined($patchcheck_end)) {
3202 $end = $patchcheck_end;
3203 }
3204
3205 # Get the true sha1's since we can use things like HEAD~3
3206 $start = get_sha1($start);
3207 $end = get_sha1($end);
3208
3209 my $type = $patchcheck_type;
3210
3211 # Can't have a test without having a test to run
3212 if ($type eq "test" && !defined($run_test)) {
3213 $type = "boot";
3214 }
3215
3216 open (IN, "git log --pretty=oneline $end|") or
3217 dodie "could not get git list";
3218
3219 my @list;
3220
3221 while (<IN>) {
3222 chomp;
3223 $list[$#list+1] = $_;
3224 last if (/^$start/);
3225 }
3226 close(IN);
3227
3228 if ($list[$#list] !~ /^$start/) {
3229 fail "SHA1 $start not found";
3230 }
3231
3232 # go backwards in the list
3233 @list = reverse @list;
3234
3235 my $save_clean = $noclean;
3236 my %ignored_warnings;
3237
3238 if (defined($ignore_warnings)) {
3239 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3240 $ignored_warnings{$sha1} = 1;
3241 }
3242 }
3243
3244 $in_patchcheck = 1;
3245 foreach my $item (@list) {
3246 my $sha1 = $item;
3247 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3248
3249 doprint "\nProcessing commit $item\n\n";
3250
3251 run_command "git checkout $sha1" or
3252 die "Failed to checkout $sha1";
3253
3254 # only clean on the first and last patch
3255 if ($item eq $list[0] ||
3256 $item eq $list[$#list]) {
3257 $noclean = $save_clean;
3258 } else {
3259 $noclean = 1;
3260 }
3261
3262 if (defined($minconfig)) {
3263 build "useconfig:$minconfig" or return 0;
3264 } else {
3265 # ?? no config to use?
3266 build "oldconfig" or return 0;
3267 }
3268
3269 # No need to do per patch checking if warnings file exists
3270 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3271 check_patch_buildlog $sha1 or return 0;
3272 }
3273
3274 check_buildlog or return 0;
3275
3276 next if ($type eq "build");
3277
3278 my $failed = 0;
3279
3280 start_monitor_and_boot or $failed = 1;
3281
3282 if (!$failed && $type ne "boot"){
3283 do_run_test or $failed = 1;
3284 }
3285 end_monitor;
3286 return 0 if ($failed);
3287
3288 patchcheck_reboot;
3289
3290 }
3291 $in_patchcheck = 0;
3292 success $i;
3293
3294 return 1;
3295}
3296
3297my %depends;
3298my %depcount;
3299my $iflevel = 0;
3300my @ifdeps;
3301
3302# prevent recursion
3303my %read_kconfigs;
3304
3305sub add_dep {
3306 # $config depends on $dep
3307 my ($config, $dep) = @_;
3308
3309 if (defined($depends{$config})) {
3310 $depends{$config} .= " " . $dep;
3311 } else {
3312 $depends{$config} = $dep;
3313 }
3314
3315 # record the number of configs depending on $dep
3316 if (defined $depcount{$dep}) {
3317 $depcount{$dep}++;
3318 } else {
3319 $depcount{$dep} = 1;
3320 }
3321}
3322
3323# taken from streamline_config.pl
3324sub read_kconfig {
3325 my ($kconfig) = @_;
3326
3327 my $state = "NONE";
3328 my $config;
3329 my @kconfigs;
3330
3331 my $cont = 0;
3332 my $line;
3333
3334
3335 if (! -f $kconfig) {
3336 doprint "file $kconfig does not exist, skipping\n";
3337 return;
3338 }
3339
3340 open(KIN, "$kconfig")
3341 or die "Can't open $kconfig";
3342 while (<KIN>) {
3343 chomp;
3344
3345 # Make sure that lines ending with \ continue
3346 if ($cont) {
3347 $_ = $line . " " . $_;
3348 }
3349
3350 if (s/\\$//) {
3351 $cont = 1;
3352 $line = $_;
3353 next;
3354 }
3355
3356 $cont = 0;
3357
3358 # collect any Kconfig sources
3359 if (/^source\s*"(.*)"/) {
3360 $kconfigs[$#kconfigs+1] = $1;
3361 }
3362
3363 # configs found
3364 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3365 $state = "NEW";
3366 $config = $2;
3367
3368 for (my $i = 0; $i < $iflevel; $i++) {
3369 add_dep $config, $ifdeps[$i];
3370 }
3371
3372 # collect the depends for the config
3373 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3374
3375 add_dep $config, $1;
3376
3377 # Get the configs that select this config
3378 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3379
3380 # selected by depends on config
3381 add_dep $1, $config;
3382
3383 # Check for if statements
3384 } elsif (/^if\s+(.*\S)\s*$/) {
3385 my $deps = $1;
3386 # remove beginning and ending non text
3387 $deps =~ s/^[^a-zA-Z0-9_]*//;
3388 $deps =~ s/[^a-zA-Z0-9_]*$//;
3389
3390 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3391
3392 $ifdeps[$iflevel++] = join ':', @deps;
3393
3394 } elsif (/^endif/) {
3395
3396 $iflevel-- if ($iflevel);
3397
3398 # stop on "help"
3399 } elsif (/^\s*help\s*$/) {
3400 $state = "NONE";
3401 }
3402 }
3403 close(KIN);
3404
3405 # read in any configs that were found.
3406 foreach $kconfig (@kconfigs) {
3407 if (!defined($read_kconfigs{$kconfig})) {
3408 $read_kconfigs{$kconfig} = 1;
3409 read_kconfig("$builddir/$kconfig");
3410 }
3411 }
3412}
3413
3414sub read_depends {
3415 # find out which arch this is by the kconfig file
3416 open (IN, $output_config)
3417 or dodie "Failed to read $output_config";
3418 my $arch;
3419 while (<IN>) {
3420 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3421 $arch = $1;
3422 last;
3423 }
3424 }
3425 close IN;
3426
3427 if (!defined($arch)) {
3428 doprint "Could not find arch from config file\n";
3429 doprint "no dependencies used\n";
3430 return;
3431 }
3432
3433 # arch is really the subarch, we need to know
3434 # what directory to look at.
3435 if ($arch eq "i386" || $arch eq "x86_64") {
3436 $arch = "x86";
3437 } elsif ($arch =~ /^tile/) {
3438 $arch = "tile";
3439 }
3440
3441 my $kconfig = "$builddir/arch/$arch/Kconfig";
3442
3443 if (! -f $kconfig && $arch =~ /\d$/) {
3444 my $orig = $arch;
3445 # some subarchs have numbers, truncate them
3446 $arch =~ s/\d*$//;
3447 $kconfig = "$builddir/arch/$arch/Kconfig";
3448 if (! -f $kconfig) {
3449 doprint "No idea what arch dir $orig is for\n";
3450 doprint "no dependencies used\n";
3451 return;
3452 }
3453 }
3454
3455 read_kconfig($kconfig);
3456}
3457
3458sub read_config_list {
3459 my ($config) = @_;
3460
3461 open (IN, $config)
3462 or dodie "Failed to read $config";
3463
3464 while (<IN>) {
3465 if (/^((CONFIG\S*)=.*)/) {
3466 if (!defined($config_ignore{$2})) {
3467 $config_list{$2} = $1;
3468 }
3469 }
3470 }
3471
3472 close(IN);
3473}
3474
3475sub read_output_config {
3476 my ($config) = @_;
3477
3478 assign_configs \%config_ignore, $config;
3479}
3480
3481sub make_new_config {
3482 my @configs = @_;
3483
3484 open (OUT, ">$output_config")
3485 or dodie "Failed to write $output_config";
3486
3487 foreach my $config (@configs) {
3488 print OUT "$config\n";
3489 }
3490 close OUT;
3491}
3492
3493sub chomp_config {
3494 my ($config) = @_;
3495
3496 $config =~ s/CONFIG_//;
3497
3498 return $config;
3499}
3500
3501sub get_depends {
3502 my ($dep) = @_;
3503
3504 my $kconfig = chomp_config $dep;
3505
3506 $dep = $depends{"$kconfig"};
3507
3508 # the dep string we have saves the dependencies as they
3509 # were found, including expressions like ! && ||. We
3510 # want to split this out into just an array of configs.
3511
3512 my $valid = "A-Za-z_0-9";
3513
3514 my @configs;
3515
3516 while ($dep =~ /[$valid]/) {
3517
3518 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3519 my $conf = "CONFIG_" . $1;
3520
3521 $configs[$#configs + 1] = $conf;
3522
3523 $dep =~ s/^[^$valid]*[$valid]+//;
3524 } else {
3525 die "this should never happen";
3526 }
3527 }
3528
3529 return @configs;
3530}
3531
3532my %min_configs;
3533my %keep_configs;
3534my %save_configs;
3535my %processed_configs;
3536my %nochange_config;
3537
3538sub test_this_config {
3539 my ($config) = @_;
3540
3541 my $found;
3542
3543 # if we already processed this config, skip it
3544 if (defined($processed_configs{$config})) {
3545 return undef;
3546 }
3547 $processed_configs{$config} = 1;
3548
3549 # if this config failed during this round, skip it
3550 if (defined($nochange_config{$config})) {
3551 return undef;
3552 }
3553
3554 my $kconfig = chomp_config $config;
3555
3556 # Test dependencies first
3557 if (defined($depends{"$kconfig"})) {
3558 my @parents = get_depends $config;
3559 foreach my $parent (@parents) {
3560 # if the parent is in the min config, check it first
3561 next if (!defined($min_configs{$parent}));
3562 $found = test_this_config($parent);
3563 if (defined($found)) {
3564 return $found;
3565 }
3566 }
3567 }
3568
3569 # Remove this config from the list of configs
3570 # do a make olddefconfig and then read the resulting
3571 # .config to make sure it is missing the config that
3572 # we had before
3573 my %configs = %min_configs;
3574 delete $configs{$config};
3575 make_new_config ((values %configs), (values %keep_configs));
3576 make_oldconfig;
3577 undef %configs;
3578 assign_configs \%configs, $output_config;
3579
3580 return $config if (!defined($configs{$config}));
3581
3582 doprint "disabling config $config did not change .config\n";
3583
3584 $nochange_config{$config} = 1;
3585
3586 return undef;
3587}
3588
3589sub make_min_config {
3590 my ($i) = @_;
3591
3592 my $type = $minconfig_type;
3593 if ($type ne "boot" && $type ne "test") {
3594 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3595 " make_min_config works only with 'boot' and 'test'\n" and return;
3596 }
3597
3598 if (!defined($output_minconfig)) {
3599 fail "OUTPUT_MIN_CONFIG not defined" and return;
3600 }
3601
3602 # If output_minconfig exists, and the start_minconfig
3603 # came from min_config, than ask if we should use
3604 # that instead.
3605 if (-f $output_minconfig && !$start_minconfig_defined) {
3606 print "$output_minconfig exists\n";
3607 if (!defined($use_output_minconfig)) {
3608 if (read_yn " Use it as minconfig?") {
3609 $start_minconfig = $output_minconfig;
3610 }
3611 } elsif ($use_output_minconfig > 0) {
3612 doprint "Using $output_minconfig as MIN_CONFIG\n";
3613 $start_minconfig = $output_minconfig;
3614 } else {
3615 doprint "Set to still use MIN_CONFIG as starting point\n";
3616 }
3617 }
3618
3619 if (!defined($start_minconfig)) {
3620 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3621 }
3622
3623 my $temp_config = "$tmpdir/temp_config";
3624
3625 # First things first. We build an allnoconfig to find
3626 # out what the defaults are that we can't touch.
3627 # Some are selections, but we really can't handle selections.
3628
3629 my $save_minconfig = $minconfig;
3630 undef $minconfig;
3631
3632 run_command "$make allnoconfig" or return 0;
3633
3634 read_depends;
3635
3636 process_config_ignore $output_config;
3637
3638 undef %save_configs;
3639 undef %min_configs;
3640
3641 if (defined($ignore_config)) {
3642 # make sure the file exists
3643 `touch $ignore_config`;
3644 assign_configs \%save_configs, $ignore_config;
3645 }
3646
3647 %keep_configs = %save_configs;
3648
3649 doprint "Load initial configs from $start_minconfig\n";
3650
3651 # Look at the current min configs, and save off all the
3652 # ones that were set via the allnoconfig
3653 assign_configs \%min_configs, $start_minconfig;
3654
3655 my @config_keys = keys %min_configs;
3656
3657 # All configs need a depcount
3658 foreach my $config (@config_keys) {
3659 my $kconfig = chomp_config $config;
3660 if (!defined $depcount{$kconfig}) {
3661 $depcount{$kconfig} = 0;
3662 }
3663 }
3664
3665 # Remove anything that was set by the make allnoconfig
3666 # we shouldn't need them as they get set for us anyway.
3667 foreach my $config (@config_keys) {
3668 # Remove anything in the ignore_config
3669 if (defined($keep_configs{$config})) {
3670 my $file = $ignore_config;
3671 $file =~ s,.*/(.*?)$,$1,;
3672 doprint "$config set by $file ... ignored\n";
3673 delete $min_configs{$config};
3674 next;
3675 }
3676 # But make sure the settings are the same. If a min config
3677 # sets a selection, we do not want to get rid of it if
3678 # it is not the same as what we have. Just move it into
3679 # the keep configs.
3680 if (defined($config_ignore{$config})) {
3681 if ($config_ignore{$config} ne $min_configs{$config}) {
3682 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3683 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3684 $keep_configs{$config} = $min_configs{$config};
3685 } else {
3686 doprint "$config set by allnoconfig ... ignored\n";
3687 }
3688 delete $min_configs{$config};
3689 }
3690 }
3691
3692 my $done = 0;
3693 my $take_two = 0;
3694
3695 while (!$done) {
3696
3697 my $config;
3698 my $found;
3699
3700 # Now disable each config one by one and do a make oldconfig
3701 # till we find a config that changes our list.
3702
3703 my @test_configs = keys %min_configs;
3704
3705 # Sort keys by who is most dependent on
3706 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3707 @test_configs ;
3708
3709 # Put configs that did not modify the config at the end.
3710 my $reset = 1;
3711 for (my $i = 0; $i < $#test_configs; $i++) {
3712 if (!defined($nochange_config{$test_configs[0]})) {
3713 $reset = 0;
3714 last;
3715 }
3716 # This config didn't change the .config last time.
3717 # Place it at the end
3718 my $config = shift @test_configs;
3719 push @test_configs, $config;
3720 }
3721
3722 # if every test config has failed to modify the .config file
3723 # in the past, then reset and start over.
3724 if ($reset) {
3725 undef %nochange_config;
3726 }
3727
3728 undef %processed_configs;
3729
3730 foreach my $config (@test_configs) {
3731
3732 $found = test_this_config $config;
3733
3734 last if (defined($found));
3735
3736 # oh well, try another config
3737 }
3738
3739 if (!defined($found)) {
3740 # we could have failed due to the nochange_config hash
3741 # reset and try again
3742 if (!$take_two) {
3743 undef %nochange_config;
3744 $take_two = 1;
3745 next;
3746 }
3747 doprint "No more configs found that we can disable\n";
3748 $done = 1;
3749 last;
3750 }
3751 $take_two = 0;
3752
3753 $config = $found;
3754
3755 doprint "Test with $config disabled\n";
3756
3757 # set in_bisect to keep build and monitor from dieing
3758 $in_bisect = 1;
3759
3760 my $failed = 0;
3761 build "oldconfig" or $failed = 1;
3762 if (!$failed) {
3763 start_monitor_and_boot or $failed = 1;
3764
3765 if ($type eq "test" && !$failed) {
3766 do_run_test or $failed = 1;
3767 }
3768
3769 end_monitor;
3770 }
3771
3772 $in_bisect = 0;
3773
3774 if ($failed) {
3775 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3776 # this config is needed, add it to the ignore list.
3777 $keep_configs{$config} = $min_configs{$config};
3778 $save_configs{$config} = $min_configs{$config};
3779 delete $min_configs{$config};
3780
3781 # update new ignore configs
3782 if (defined($ignore_config)) {
3783 open (OUT, ">$temp_config")
3784 or die "Can't write to $temp_config";
3785 foreach my $config (keys %save_configs) {
3786 print OUT "$save_configs{$config}\n";
3787 }
3788 close OUT;
3789 run_command "mv $temp_config $ignore_config" or
3790 dodie "failed to copy update to $ignore_config";
3791 }
3792
3793 } else {
3794 # We booted without this config, remove it from the minconfigs.
3795 doprint "$config is not needed, disabling\n";
3796
3797 delete $min_configs{$config};
3798
3799 # Also disable anything that is not enabled in this config
3800 my %configs;
3801 assign_configs \%configs, $output_config;
3802 my @config_keys = keys %min_configs;
3803 foreach my $config (@config_keys) {
3804 if (!defined($configs{$config})) {
3805 doprint "$config is not set, disabling\n";
3806 delete $min_configs{$config};
3807 }
3808 }
3809
3810 # Save off all the current mandidory configs
3811 open (OUT, ">$temp_config")
3812 or die "Can't write to $temp_config";
3813 foreach my $config (keys %keep_configs) {
3814 print OUT "$keep_configs{$config}\n";
3815 }
3816 foreach my $config (keys %min_configs) {
3817 print OUT "$min_configs{$config}\n";
3818 }
3819 close OUT;
3820
3821 run_command "mv $temp_config $output_minconfig" or
3822 dodie "failed to copy update to $output_minconfig";
3823 }
3824
3825 doprint "Reboot and wait $sleep_time seconds\n";
3826 reboot_to_good $sleep_time;
3827 }
3828
3829 success $i;
3830 return 1;
3831}
3832
3833sub make_warnings_file {
3834 my ($i) = @_;
3835
3836 if (!defined($warnings_file)) {
3837 dodie "Must define WARNINGS_FILE for make_warnings_file test";
3838 }
3839
3840 if ($build_type eq "nobuild") {
3841 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
3842 }
3843
3844 build $build_type or dodie "Failed to build";
3845
3846 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
3847
3848 open(IN, $buildlog) or dodie "Can't open $buildlog";
3849 while (<IN>) {
3850
3851 # Some compilers use UTF-8 extended for quotes
3852 # for distcc heterogeneous systems, this causes issues
3853 s/$utf8_quote/'/g;
3854
3855 if (/$check_build_re/) {
3856 print OUT;
3857 }
3858 }
3859 close(IN);
3860
3861 close(OUT);
3862
3863 success $i;
3864}
3865
3866$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl config-file\n";
3867
3868if ($#ARGV == 0) {
3869 $ktest_config = $ARGV[0];
3870 if (! -f $ktest_config) {
3871 print "$ktest_config does not exist.\n";
3872 if (!read_yn "Create it?") {
3873 exit 0;
3874 }
3875 }
3876} else {
3877 $ktest_config = "ktest.conf";
3878}
3879
3880if (! -f $ktest_config) {
3881 $newconfig = 1;
3882 get_test_case;
3883 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
3884 print OUT << "EOF"
3885# Generated by ktest.pl
3886#
3887
3888# PWD is a ktest.pl variable that will result in the process working
3889# directory that ktest.pl is executed in.
3890
3891# THIS_DIR is automatically assigned the PWD of the path that generated
3892# the config file. It is best to use this variable when assigning other
3893# directory paths within this directory. This allows you to easily
3894# move the test cases to other locations or to other machines.
3895#
3896THIS_DIR := $variable{"PWD"}
3897
3898# Define each test with TEST_START
3899# The config options below it will override the defaults
3900TEST_START
3901TEST_TYPE = $default{"TEST_TYPE"}
3902
3903DEFAULTS
3904EOF
3905;
3906 close(OUT);
3907}
3908read_config $ktest_config;
3909
3910if (defined($opt{"LOG_FILE"})) {
3911 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
3912}
3913
3914# Append any configs entered in manually to the config file.
3915my @new_configs = keys %entered_configs;
3916if ($#new_configs >= 0) {
3917 print "\nAppending entered in configs to $ktest_config\n";
3918 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
3919 foreach my $config (@new_configs) {
3920 print OUT "$config = $entered_configs{$config}\n";
3921 $opt{$config} = process_variables($entered_configs{$config});
3922 }
3923}
3924
3925if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
3926 unlink $opt{"LOG_FILE"};
3927}
3928
3929doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
3930
3931for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
3932
3933 if (!$i) {
3934 doprint "DEFAULT OPTIONS:\n";
3935 } else {
3936 doprint "\nTEST $i OPTIONS";
3937 if (defined($repeat_tests{$i})) {
3938 $repeat = $repeat_tests{$i};
3939 doprint " ITERATE $repeat";
3940 }
3941 doprint "\n";
3942 }
3943
3944 foreach my $option (sort keys %opt) {
3945
3946 if ($option =~ /\[(\d+)\]$/) {
3947 next if ($i != $1);
3948 } else {
3949 next if ($i);
3950 }
3951
3952 doprint "$option = $opt{$option}\n";
3953 }
3954}
3955
3956sub __set_test_option {
3957 my ($name, $i) = @_;
3958
3959 my $option = "$name\[$i\]";
3960
3961 if (defined($opt{$option})) {
3962 return $opt{$option};
3963 }
3964
3965 foreach my $test (keys %repeat_tests) {
3966 if ($i >= $test &&
3967 $i < $test + $repeat_tests{$test}) {
3968 $option = "$name\[$test\]";
3969 if (defined($opt{$option})) {
3970 return $opt{$option};
3971 }
3972 }
3973 }
3974
3975 if (defined($opt{$name})) {
3976 return $opt{$name};
3977 }
3978
3979 return undef;
3980}
3981
3982sub set_test_option {
3983 my ($name, $i) = @_;
3984
3985 my $option = __set_test_option($name, $i);
3986 return $option if (!defined($option));
3987
3988 return eval_option($name, $option, $i);
3989}
3990
3991# First we need to do is the builds
3992for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
3993
3994 # Do not reboot on failing test options
3995 $no_reboot = 1;
3996 $reboot_success = 0;
3997
3998 $have_version = 0;
3999
4000 $iteration = $i;
4001
4002 undef %force_config;
4003
4004 my $makecmd = set_test_option("MAKE_CMD", $i);
4005
4006 $outputdir = set_test_option("OUTPUT_DIR", $i);
4007 $builddir = set_test_option("BUILD_DIR", $i);
4008
4009 chdir $builddir || die "can't change directory to $builddir";
4010
4011 if (!-d $outputdir) {
4012 mkpath($outputdir) or
4013 die "can't create $outputdir";
4014 }
4015
4016 $make = "$makecmd O=$outputdir";
4017
4018 # Load all the options into their mapped variable names
4019 foreach my $opt (keys %option_map) {
4020 ${$option_map{$opt}} = set_test_option($opt, $i);
4021 }
4022
4023 $start_minconfig_defined = 1;
4024
4025 # The first test may override the PRE_KTEST option
4026 if (defined($pre_ktest) && $i == 1) {
4027 doprint "\n";
4028 run_command $pre_ktest;
4029 }
4030
4031 # Any test can override the POST_KTEST option
4032 # The last test takes precedence.
4033 if (defined($post_ktest)) {
4034 $final_post_ktest = $post_ktest;
4035 }
4036
4037 if (!defined($start_minconfig)) {
4038 $start_minconfig_defined = 0;
4039 $start_minconfig = $minconfig;
4040 }
4041
4042 if (!-d $tmpdir) {
4043 mkpath($tmpdir) or
4044 die "can't create $tmpdir";
4045 }
4046
4047 $ENV{"SSH_USER"} = $ssh_user;
4048 $ENV{"MACHINE"} = $machine;
4049
4050 $buildlog = "$tmpdir/buildlog-$machine";
4051 $testlog = "$tmpdir/testlog-$machine";
4052 $dmesg = "$tmpdir/dmesg-$machine";
4053 $output_config = "$outputdir/.config";
4054
4055 if (!$buildonly) {
4056 $target = "$ssh_user\@$machine";
4057 if ($reboot_type eq "grub") {
4058 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4059 } elsif ($reboot_type eq "grub2") {
4060 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4061 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4062 } elsif ($reboot_type eq "syslinux") {
4063 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4064 }
4065 }
4066
4067 my $run_type = $build_type;
4068 if ($test_type eq "patchcheck") {
4069 $run_type = $patchcheck_type;
4070 } elsif ($test_type eq "bisect") {
4071 $run_type = $bisect_type;
4072 } elsif ($test_type eq "config_bisect") {
4073 $run_type = $config_bisect_type;
4074 } elsif ($test_type eq "make_min_config") {
4075 $run_type = "";
4076 } elsif ($test_type eq "make_warnings_file") {
4077 $run_type = "";
4078 }
4079
4080 # mistake in config file?
4081 if (!defined($run_type)) {
4082 $run_type = "ERROR";
4083 }
4084
4085 my $installme = "";
4086 $installme = " no_install" if ($no_install);
4087
4088 doprint "\n\n";
4089 doprint "RUNNING TEST $i of $opt{NUM_TESTS} with option $test_type $run_type$installme\n\n";
4090
4091 if (defined($pre_test)) {
4092 run_command $pre_test;
4093 }
4094
4095 unlink $dmesg;
4096 unlink $buildlog;
4097 unlink $testlog;
4098
4099 if (defined($addconfig)) {
4100 my $min = $minconfig;
4101 if (!defined($minconfig)) {
4102 $min = "";
4103 }
4104 run_command "cat $addconfig $min > $tmpdir/add_config" or
4105 dodie "Failed to create temp config";
4106 $minconfig = "$tmpdir/add_config";
4107 }
4108
4109 if (defined($checkout)) {
4110 run_command "git checkout $checkout" or
4111 die "failed to checkout $checkout";
4112 }
4113
4114 $no_reboot = 0;
4115
4116 # A test may opt to not reboot the box
4117 if ($reboot_on_success) {
4118 $reboot_success = 1;
4119 }
4120
4121 if ($test_type eq "bisect") {
4122 bisect $i;
4123 next;
4124 } elsif ($test_type eq "config_bisect") {
4125 config_bisect $i;
4126 next;
4127 } elsif ($test_type eq "patchcheck") {
4128 patchcheck $i;
4129 next;
4130 } elsif ($test_type eq "make_min_config") {
4131 make_min_config $i;
4132 next;
4133 } elsif ($test_type eq "make_warnings_file") {
4134 $no_reboot = 1;
4135 make_warnings_file $i;
4136 next;
4137 }
4138
4139 if ($build_type ne "nobuild") {
4140 build $build_type or next;
4141 check_buildlog or next;
4142 }
4143
4144 if ($test_type eq "install") {
4145 get_version;
4146 install;
4147 success $i;
4148 next;
4149 }
4150
4151 if ($test_type ne "build") {
4152 my $failed = 0;
4153 start_monitor_and_boot or $failed = 1;
4154
4155 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4156 do_run_test or $failed = 1;
4157 }
4158 end_monitor;
4159 next if ($failed);
4160 }
4161
4162 success $i;
4163}
4164
4165if (defined($final_post_ktest)) {
4166 run_command $final_post_ktest;
4167}
4168
4169if ($opt{"POWEROFF_ON_SUCCESS"}) {
4170 halt;
4171} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4172 reboot_to_good;
4173} elsif (defined($switch_to_good)) {
4174 # still need to get to the good kernel
4175 run_command $switch_to_good;
4176}
4177
4178
4179doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4180
4181exit 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 $connect_timeout;
182my $config_bisect_exec;
183my $booted_timeout;
184my $detect_triplefault;
185my $console;
186my $close_console_signal;
187my $reboot_success_line;
188my $success_line;
189my $stop_after_success;
190my $stop_after_failure;
191my $stop_test_after;
192my $build_target;
193my $target_image;
194my $checkout;
195my $localversion;
196my $iteration = 0;
197my $successes = 0;
198my $stty_orig;
199my $run_command_status = 0;
200
201my $bisect_good;
202my $bisect_bad;
203my $bisect_type;
204my $bisect_start;
205my $bisect_replay;
206my $bisect_files;
207my $bisect_reverse;
208my $bisect_check;
209
210my $config_bisect;
211my $config_bisect_type;
212my $config_bisect_check;
213
214my $patchcheck_type;
215my $patchcheck_start;
216my $patchcheck_cherry;
217my $patchcheck_end;
218
219my $build_time;
220my $install_time;
221my $reboot_time;
222my $test_time;
223
224my $pwd;
225my $dirname = $FindBin::Bin;
226
227my $mailto;
228my $mailer;
229my $mail_path;
230my $mail_max_size;
231my $mail_command;
232my $email_on_error;
233my $email_when_finished;
234my $email_when_started;
235my $email_when_canceled;
236
237my $script_start_time = localtime();
238
239# set when a test is something other that just building or install
240# which would require more options.
241my $buildonly = 1;
242
243# tell build not to worry about warnings, even when WARNINGS_FILE is set
244my $warnings_ok = 0;
245
246# set when creating a new config
247my $newconfig = 0;
248
249my %entered_configs;
250my %config_help;
251my %variable;
252
253# force_config is the list of configs that we force enabled (or disabled)
254# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
255my %force_config;
256
257# do not force reboots on config problems
258my $no_reboot = 1;
259
260# reboot on success
261my $reboot_success = 0;
262
263my %option_map = (
264 "MAILTO" => \$mailto,
265 "MAILER" => \$mailer,
266 "MAIL_PATH" => \$mail_path,
267 "MAIL_MAX_SIZE" => \$mail_max_size,
268 "MAIL_COMMAND" => \$mail_command,
269 "EMAIL_ON_ERROR" => \$email_on_error,
270 "EMAIL_WHEN_FINISHED" => \$email_when_finished,
271 "EMAIL_WHEN_STARTED" => \$email_when_started,
272 "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
273 "MACHINE" => \$machine,
274 "SSH_USER" => \$ssh_user,
275 "TMP_DIR" => \$tmpdir,
276 "OUTPUT_DIR" => \$outputdir,
277 "BUILD_DIR" => \$builddir,
278 "TEST_TYPE" => \$test_type,
279 "PRE_KTEST" => \$pre_ktest,
280 "POST_KTEST" => \$post_ktest,
281 "PRE_TEST" => \$pre_test,
282 "PRE_TEST_DIE" => \$pre_test_die,
283 "POST_TEST" => \$post_test,
284 "BUILD_TYPE" => \$build_type,
285 "BUILD_OPTIONS" => \$build_options,
286 "PRE_BUILD" => \$pre_build,
287 "POST_BUILD" => \$post_build,
288 "PRE_BUILD_DIE" => \$pre_build_die,
289 "POST_BUILD_DIE" => \$post_build_die,
290 "POWER_CYCLE" => \$power_cycle,
291 "REBOOT" => \$reboot,
292 "REBOOT_RETURN_CODE" => \$reboot_return_code,
293 "BUILD_NOCLEAN" => \$noclean,
294 "MIN_CONFIG" => \$minconfig,
295 "OUTPUT_MIN_CONFIG" => \$output_minconfig,
296 "START_MIN_CONFIG" => \$start_minconfig,
297 "MIN_CONFIG_TYPE" => \$minconfig_type,
298 "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
299 "WARNINGS_FILE" => \$warnings_file,
300 "IGNORE_CONFIG" => \$ignore_config,
301 "TEST" => \$run_test,
302 "ADD_CONFIG" => \$addconfig,
303 "REBOOT_TYPE" => \$reboot_type,
304 "GRUB_MENU" => \$grub_menu,
305 "GRUB_FILE" => \$grub_file,
306 "GRUB_REBOOT" => \$grub_reboot,
307 "GRUB_BLS_GET" => \$grub_bls_get,
308 "SYSLINUX" => \$syslinux,
309 "SYSLINUX_PATH" => \$syslinux_path,
310 "SYSLINUX_LABEL" => \$syslinux_label,
311 "PRE_INSTALL" => \$pre_install,
312 "POST_INSTALL" => \$post_install,
313 "NO_INSTALL" => \$no_install,
314 "REBOOT_SCRIPT" => \$reboot_script,
315 "REBOOT_ON_ERROR" => \$reboot_on_error,
316 "SWITCH_TO_GOOD" => \$switch_to_good,
317 "SWITCH_TO_TEST" => \$switch_to_test,
318 "POWEROFF_ON_ERROR" => \$poweroff_on_error,
319 "REBOOT_ON_SUCCESS" => \$reboot_on_success,
320 "DIE_ON_FAILURE" => \$die_on_failure,
321 "POWER_OFF" => \$power_off,
322 "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
323 "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
324 "MAX_MONITOR_WAIT" => \$max_monitor_wait,
325 "SLEEP_TIME" => \$sleep_time,
326 "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
327 "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
328 "IGNORE_WARNINGS" => \$ignore_warnings,
329 "IGNORE_ERRORS" => \$ignore_errors,
330 "BISECT_MANUAL" => \$bisect_manual,
331 "BISECT_SKIP" => \$bisect_skip,
332 "BISECT_TRIES" => \$bisect_tries,
333 "CONFIG_BISECT_GOOD" => \$config_bisect_good,
334 "BISECT_RET_GOOD" => \$bisect_ret_good,
335 "BISECT_RET_BAD" => \$bisect_ret_bad,
336 "BISECT_RET_SKIP" => \$bisect_ret_skip,
337 "BISECT_RET_ABORT" => \$bisect_ret_abort,
338 "BISECT_RET_DEFAULT" => \$bisect_ret_default,
339 "STORE_FAILURES" => \$store_failures,
340 "STORE_SUCCESSES" => \$store_successes,
341 "TEST_NAME" => \$test_name,
342 "TIMEOUT" => \$timeout,
343 "CONNECT_TIMEOUT" => \$connect_timeout,
344 "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
345 "BOOTED_TIMEOUT" => \$booted_timeout,
346 "CONSOLE" => \$console,
347 "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
348 "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
349 "SUCCESS_LINE" => \$success_line,
350 "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
351 "STOP_AFTER_SUCCESS" => \$stop_after_success,
352 "STOP_AFTER_FAILURE" => \$stop_after_failure,
353 "STOP_TEST_AFTER" => \$stop_test_after,
354 "BUILD_TARGET" => \$build_target,
355 "SSH_EXEC" => \$ssh_exec,
356 "SCP_TO_TARGET" => \$scp_to_target,
357 "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
358 "CHECKOUT" => \$checkout,
359 "TARGET_IMAGE" => \$target_image,
360 "LOCALVERSION" => \$localversion,
361
362 "BISECT_GOOD" => \$bisect_good,
363 "BISECT_BAD" => \$bisect_bad,
364 "BISECT_TYPE" => \$bisect_type,
365 "BISECT_START" => \$bisect_start,
366 "BISECT_REPLAY" => \$bisect_replay,
367 "BISECT_FILES" => \$bisect_files,
368 "BISECT_REVERSE" => \$bisect_reverse,
369 "BISECT_CHECK" => \$bisect_check,
370
371 "CONFIG_BISECT" => \$config_bisect,
372 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
373 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
374
375 "PATCHCHECK_TYPE" => \$patchcheck_type,
376 "PATCHCHECK_START" => \$patchcheck_start,
377 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
378 "PATCHCHECK_END" => \$patchcheck_end,
379);
380
381# Options may be used by other options, record them.
382my %used_options;
383
384# default variables that can be used
385chomp ($variable{"PWD"} = `pwd`);
386$pwd = $variable{"PWD"};
387
388$config_help{"MACHINE"} = << "EOF"
389 The machine hostname that you will test.
390 For build only tests, it is still needed to differentiate log files.
391EOF
392 ;
393$config_help{"SSH_USER"} = << "EOF"
394 The box is expected to have ssh on normal bootup, provide the user
395 (most likely root, since you need privileged operations)
396EOF
397 ;
398$config_help{"BUILD_DIR"} = << "EOF"
399 The directory that contains the Linux source code (full path).
400 You can use \${PWD} that will be the path where ktest.pl is run, or use
401 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
402EOF
403 ;
404$config_help{"OUTPUT_DIR"} = << "EOF"
405 The directory that the objects will be built (full path).
406 (can not be same as BUILD_DIR)
407 You can use \${PWD} that will be the path where ktest.pl is run, or use
408 \${THIS_DIR} which is assigned \${PWD} but may be changed later.
409EOF
410 ;
411$config_help{"BUILD_TARGET"} = << "EOF"
412 The location of the compiled file to copy to the target.
413 (relative to OUTPUT_DIR)
414EOF
415 ;
416$config_help{"BUILD_OPTIONS"} = << "EOF"
417 Options to add to \"make\" when building.
418 i.e. -j20
419EOF
420 ;
421$config_help{"TARGET_IMAGE"} = << "EOF"
422 The place to put your image on the test machine.
423EOF
424 ;
425$config_help{"POWER_CYCLE"} = << "EOF"
426 A script or command to reboot the box.
427
428 Here is a digital loggers power switch example
429 POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
430
431 Here is an example to reboot a virtual box on the current host
432 with the name "Guest".
433 POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
434EOF
435 ;
436$config_help{"CONSOLE"} = << "EOF"
437 The script or command that reads the console
438
439 If you use ttywatch server, something like the following would work.
440CONSOLE = nc -d localhost 3001
441
442 For a virtual machine with guest name "Guest".
443CONSOLE = virsh console Guest
444EOF
445 ;
446$config_help{"LOCALVERSION"} = << "EOF"
447 Required version ending to differentiate the test
448 from other linux builds on the system.
449EOF
450 ;
451$config_help{"REBOOT_TYPE"} = << "EOF"
452 Way to reboot the box to the test kernel.
453 Only valid options so far are "grub", "grub2", "grub2bls", "syslinux", and "script".
454
455 If you specify grub, it will assume grub version 1
456 and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
457 and select that target to reboot to the kernel. If this is not
458 your setup, then specify "script" and have a command or script
459 specified in REBOOT_SCRIPT to boot to the target.
460
461 The entry in /boot/grub/menu.lst must be entered in manually.
462 The test will not modify that file.
463
464 If you specify grub2, then you also need to specify both \$GRUB_MENU
465 and \$GRUB_FILE.
466
467 If you specify grub2bls, then you also need to specify \$GRUB_MENU.
468
469 If you specify syslinux, then you may use SYSLINUX to define the syslinux
470 command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
471 the syslinux install (defaults to /boot/extlinux). But you have to specify
472 SYSLINUX_LABEL to define the label to boot to for the test kernel.
473EOF
474 ;
475$config_help{"GRUB_MENU"} = << "EOF"
476 The grub title name for the test kernel to boot
477 (Only mandatory if REBOOT_TYPE = grub or grub2)
478
479 Note, ktest.pl will not update the grub menu.lst, you need to
480 manually add an option for the test. ktest.pl will search
481 the grub menu.lst for this option to find what kernel to
482 reboot into.
483
484 For example, if in the /boot/grub/menu.lst the test kernel title has:
485 title Test Kernel
486 kernel vmlinuz-test
487 GRUB_MENU = Test Kernel
488
489 For grub2, a search of \$GRUB_FILE is performed for the lines
490 that begin with "menuentry". It will not detect submenus. The
491 menu must be a non-nested menu. Add the quotes used in the menu
492 to guarantee your selection, as the first menuentry with the content
493 of \$GRUB_MENU that is found will be used.
494
495 For grub2bls, \$GRUB_MENU is searched on the result of \$GRUB_BLS_GET
496 command for the lines that begin with "title".
497EOF
498 ;
499$config_help{"GRUB_FILE"} = << "EOF"
500 If grub2 is used, the full path for the grub.cfg file is placed
501 here. Use something like /boot/grub2/grub.cfg to search.
502EOF
503 ;
504$config_help{"SYSLINUX_LABEL"} = << "EOF"
505 If syslinux is used, the label that boots the target kernel must
506 be specified with SYSLINUX_LABEL.
507EOF
508 ;
509$config_help{"REBOOT_SCRIPT"} = << "EOF"
510 A script to reboot the target into the test kernel
511 (Only mandatory if REBOOT_TYPE = script)
512EOF
513 ;
514
515# used with process_expression()
516my $d = 0;
517
518# defined before get_test_name()
519my $in_die = 0;
520
521# defined before process_warning_line()
522my $check_build_re = ".*:.*(warning|error|Error):.*";
523my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
524
525# defined before child_finished()
526my $child_done;
527
528# config_ignore holds the configs that were set (or unset) for
529# a good config and we will ignore these configs for the rest
530# of a config bisect. These configs stay as they were.
531my %config_ignore;
532
533# config_set holds what all configs were set as.
534my %config_set;
535
536# config_off holds the set of configs that the bad config had disabled.
537# We need to record them and set them in the .config when running
538# olddefconfig, because olddefconfig keeps the defaults.
539my %config_off;
540
541# config_off_tmp holds a set of configs to turn off for now
542my @config_off_tmp;
543
544# config_list is the set of configs that are being tested
545my %config_list;
546my %null_config;
547
548my %dependency;
549
550# found above run_config_bisect()
551my $pass = 1;
552
553# found above add_dep()
554
555my %depends;
556my %depcount;
557my $iflevel = 0;
558my @ifdeps;
559
560# prevent recursion
561my %read_kconfigs;
562
563# found above test_this_config()
564my %min_configs;
565my %keep_configs;
566my %save_configs;
567my %processed_configs;
568my %nochange_config;
569
570#
571# These are first defined here, main function later on
572#
573sub run_command;
574sub start_monitor;
575sub end_monitor;
576sub wait_for_monitor;
577
578sub _logit {
579 if (defined($opt{"LOG_FILE"})) {
580 print LOG @_;
581 }
582}
583
584sub logit {
585 if (defined($opt{"LOG_FILE"})) {
586 _logit @_;
587 } else {
588 print @_;
589 }
590}
591
592sub doprint {
593 print @_;
594 _logit @_;
595}
596
597sub read_prompt {
598 my ($cancel, $prompt) = @_;
599
600 my $ans;
601
602 for (;;) {
603 if ($cancel) {
604 print "$prompt [y/n/C] ";
605 } else {
606 print "$prompt [Y/n] ";
607 }
608 $ans = <STDIN>;
609 chomp $ans;
610 if ($ans =~ /^\s*$/) {
611 if ($cancel) {
612 $ans = "c";
613 } else {
614 $ans = "y";
615 }
616 }
617 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
618 if ($cancel) {
619 last if ($ans =~ /^c$/i);
620 print "Please answer either 'y', 'n' or 'c'.\n";
621 } else {
622 print "Please answer either 'y' or 'n'.\n";
623 }
624 }
625 if ($ans =~ /^c/i) {
626 exit;
627 }
628 if ($ans !~ /^y$/i) {
629 return 0;
630 }
631 return 1;
632}
633
634sub read_yn {
635 my ($prompt) = @_;
636
637 return read_prompt 0, $prompt;
638}
639
640sub read_ync {
641 my ($prompt) = @_;
642
643 return read_prompt 1, $prompt;
644}
645
646sub get_mandatory_config {
647 my ($config) = @_;
648 my $ans;
649
650 return if (defined($opt{$config}));
651
652 if (defined($config_help{$config})) {
653 print "\n";
654 print $config_help{$config};
655 }
656
657 for (;;) {
658 print "$config = ";
659 if (defined($default{$config}) && length($default{$config})) {
660 print "\[$default{$config}\] ";
661 }
662 $ans = <STDIN>;
663 $ans =~ s/^\s*(.*\S)\s*$/$1/;
664 if ($ans =~ /^\s*$/) {
665 if ($default{$config}) {
666 $ans = $default{$config};
667 } else {
668 print "Your answer can not be blank\n";
669 next;
670 }
671 }
672 $entered_configs{$config} = ${ans};
673 last;
674 }
675}
676
677sub show_time {
678 my ($time) = @_;
679
680 my $hours = 0;
681 my $minutes = 0;
682
683 if ($time > 3600) {
684 $hours = int($time / 3600);
685 $time -= $hours * 3600;
686 }
687 if ($time > 60) {
688 $minutes = int($time / 60);
689 $time -= $minutes * 60;
690 }
691
692 if ($hours > 0) {
693 doprint "$hours hour";
694 doprint "s" if ($hours > 1);
695 doprint " ";
696 }
697
698 if ($minutes > 0) {
699 doprint "$minutes minute";
700 doprint "s" if ($minutes > 1);
701 doprint " ";
702 }
703
704 doprint "$time second";
705 doprint "s" if ($time != 1);
706}
707
708sub print_times {
709 doprint "\n";
710 if ($build_time) {
711 doprint "Build time: ";
712 show_time($build_time);
713 doprint "\n";
714 }
715 if ($install_time) {
716 doprint "Install time: ";
717 show_time($install_time);
718 doprint "\n";
719 }
720 if ($reboot_time) {
721 doprint "Reboot time: ";
722 show_time($reboot_time);
723 doprint "\n";
724 }
725 if ($test_time) {
726 doprint "Test time: ";
727 show_time($test_time);
728 doprint "\n";
729 }
730 # reset for iterations like bisect
731 $build_time = 0;
732 $install_time = 0;
733 $reboot_time = 0;
734 $test_time = 0;
735}
736
737sub get_mandatory_configs {
738 get_mandatory_config("MACHINE");
739 get_mandatory_config("BUILD_DIR");
740 get_mandatory_config("OUTPUT_DIR");
741
742 if ($newconfig) {
743 get_mandatory_config("BUILD_OPTIONS");
744 }
745
746 # options required for other than just building a kernel
747 if (!$buildonly) {
748 get_mandatory_config("POWER_CYCLE");
749 get_mandatory_config("CONSOLE");
750 }
751
752 # options required for install and more
753 if ($buildonly != 1) {
754 get_mandatory_config("SSH_USER");
755 get_mandatory_config("BUILD_TARGET");
756 get_mandatory_config("TARGET_IMAGE");
757 }
758
759 get_mandatory_config("LOCALVERSION");
760
761 return if ($buildonly);
762
763 my $rtype = $opt{"REBOOT_TYPE"};
764
765 if (!defined($rtype)) {
766 if (!defined($opt{"GRUB_MENU"})) {
767 get_mandatory_config("REBOOT_TYPE");
768 $rtype = $entered_configs{"REBOOT_TYPE"};
769 } else {
770 $rtype = "grub";
771 }
772 }
773
774 if (($rtype eq "grub") or ($rtype eq "grub2bls")) {
775 get_mandatory_config("GRUB_MENU");
776 }
777
778 if ($rtype eq "grub2") {
779 get_mandatory_config("GRUB_MENU");
780 get_mandatory_config("GRUB_FILE");
781 }
782
783 if ($rtype eq "syslinux") {
784 get_mandatory_config("SYSLINUX_LABEL");
785 }
786}
787
788sub process_variables {
789 my ($value, $remove_undef) = @_;
790 my $retval = "";
791
792 # We want to check for '\', and it is just easier
793 # to check the previous characet of '$' and not need
794 # to worry if '$' is the first character. By adding
795 # a space to $value, we can just check [^\\]\$ and
796 # it will still work.
797 $value = " $value";
798
799 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
800 my $begin = $1;
801 my $var = $2;
802 my $end = $3;
803 # append beginning of value to retval
804 $retval = "$retval$begin";
805 if (defined($variable{$var})) {
806 $retval = "$retval$variable{$var}";
807 } elsif (defined($remove_undef) && $remove_undef) {
808 # for if statements, any variable that is not defined,
809 # we simple convert to 0
810 $retval = "${retval}0";
811 } else {
812 # put back the origin piece.
813 $retval = "$retval\$\{$var\}";
814 # This could be an option that is used later, save
815 # it so we don't warn if this option is not one of
816 # ktests options.
817 $used_options{$var} = 1;
818 }
819 $value = $end;
820 }
821 $retval = "$retval$value";
822
823 # remove the space added in the beginning
824 $retval =~ s/ //;
825
826 return "$retval";
827}
828
829sub set_value {
830 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
831
832 my $prvalue = process_variables($rvalue);
833
834 if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
835 $prvalue !~ /^(config_|)bisect$/ &&
836 $prvalue !~ /^build$/ &&
837 $buildonly) {
838
839 # Note if a test is something other than build, then we
840 # will need other mandatory options.
841 if ($prvalue ne "install") {
842 $buildonly = 0;
843 } else {
844 # install still limits some mandatory options.
845 $buildonly = 2;
846 }
847 }
848
849 if (defined($opt{$lvalue})) {
850 if (!$override || defined(${$overrides}{$lvalue})) {
851 my $extra = "";
852 if ($override) {
853 $extra = "In the same override section!\n";
854 }
855 die "$name: $.: Option $lvalue defined more than once!\n$extra";
856 }
857 ${$overrides}{$lvalue} = $prvalue;
858 }
859
860 $opt{$lvalue} = $prvalue;
861}
862
863sub set_eval {
864 my ($lvalue, $rvalue, $name) = @_;
865
866 my $prvalue = process_variables($rvalue);
867 my $arr;
868
869 if (defined($evals{$lvalue})) {
870 $arr = $evals{$lvalue};
871 } else {
872 $arr = [];
873 $evals{$lvalue} = $arr;
874 }
875
876 push @{$arr}, $rvalue;
877}
878
879sub set_variable {
880 my ($lvalue, $rvalue) = @_;
881
882 if ($rvalue =~ /^\s*$/) {
883 delete $variable{$lvalue};
884 } else {
885 $rvalue = process_variables($rvalue);
886 $variable{$lvalue} = $rvalue;
887 }
888}
889
890sub process_compare {
891 my ($lval, $cmp, $rval) = @_;
892
893 # remove whitespace
894
895 $lval =~ s/^\s*//;
896 $lval =~ s/\s*$//;
897
898 $rval =~ s/^\s*//;
899 $rval =~ s/\s*$//;
900
901 if ($cmp eq "==") {
902 return $lval eq $rval;
903 } elsif ($cmp eq "!=") {
904 return $lval ne $rval;
905 } elsif ($cmp eq "=~") {
906 return $lval =~ m/$rval/;
907 } elsif ($cmp eq "!~") {
908 return $lval !~ m/$rval/;
909 }
910
911 my $statement = "$lval $cmp $rval";
912 my $ret = eval $statement;
913
914 # $@ stores error of eval
915 if ($@) {
916 return -1;
917 }
918
919 return $ret;
920}
921
922sub value_defined {
923 my ($val) = @_;
924
925 return defined($variable{$2}) ||
926 defined($opt{$2});
927}
928
929sub process_expression {
930 my ($name, $val) = @_;
931
932 my $c = $d++;
933
934 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
935 my $express = $1;
936
937 if (process_expression($name, $express)) {
938 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
939 } else {
940 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
941 }
942 }
943
944 $d--;
945 my $OR = "\\|\\|";
946 my $AND = "\\&\\&";
947
948 while ($val =~ s/^(.*?)($OR|$AND)//) {
949 my $express = $1;
950 my $op = $2;
951
952 if (process_expression($name, $express)) {
953 if ($op eq "||") {
954 return 1;
955 }
956 } else {
957 if ($op eq "&&") {
958 return 0;
959 }
960 }
961 }
962
963 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
964 my $ret = process_compare($1, $2, $3);
965 if ($ret < 0) {
966 die "$name: $.: Unable to process comparison\n";
967 }
968 return $ret;
969 }
970
971 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
972 if (defined $1) {
973 return !value_defined($2);
974 } else {
975 return value_defined($2);
976 }
977 }
978
979 if ($val =~ s/^\s*NOT\s+(.*)//) {
980 my $express = $1;
981 my $ret = process_expression($name, $express);
982 return !$ret;
983 }
984
985 if ($val =~ /^\s*0\s*$/) {
986 return 0;
987 } elsif ($val =~ /^\s*\d+\s*$/) {
988 return 1;
989 }
990
991 die ("$name: $.: Undefined content $val in if statement\n");
992}
993
994sub process_if {
995 my ($name, $value) = @_;
996
997 # Convert variables and replace undefined ones with 0
998 my $val = process_variables($value, 1);
999 my $ret = process_expression $name, $val;
1000
1001 return $ret;
1002}
1003
1004sub __read_config {
1005 my ($config, $current_test_num) = @_;
1006
1007 my $in;
1008 open($in, $config) || die "can't read file $config";
1009
1010 my $name = $config;
1011 $name =~ s,.*/(.*),$1,;
1012
1013 my $test_num = $$current_test_num;
1014 my $default = 1;
1015 my $repeat = 1;
1016 my $num_tests_set = 0;
1017 my $skip = 0;
1018 my $rest;
1019 my $line;
1020 my $test_case = 0;
1021 my $if = 0;
1022 my $if_set = 0;
1023 my $override = 0;
1024
1025 my %overrides;
1026
1027 while (<$in>) {
1028
1029 # ignore blank lines and comments
1030 next if (/^\s*$/ || /\s*\#/);
1031
1032 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
1033
1034 my $type = $1;
1035 $rest = $2;
1036 $line = $2;
1037
1038 my $old_test_num;
1039 my $old_repeat;
1040 $override = 0;
1041
1042 if ($type eq "TEST_START") {
1043 if ($num_tests_set) {
1044 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1045 }
1046
1047 $old_test_num = $test_num;
1048 $old_repeat = $repeat;
1049
1050 $test_num += $repeat;
1051 $default = 0;
1052 $repeat = 1;
1053 } else {
1054 $default = 1;
1055 }
1056
1057 # If SKIP is anywhere in the line, the command will be skipped
1058 if ($rest =~ s/\s+SKIP\b//) {
1059 $skip = 1;
1060 } else {
1061 $test_case = 1;
1062 $skip = 0;
1063 }
1064
1065 if ($rest =~ s/\sELSE\b//) {
1066 if (!$if) {
1067 die "$name: $.: ELSE found with out matching IF section\n$_";
1068 }
1069 $if = 0;
1070
1071 if ($if_set) {
1072 $skip = 1;
1073 } else {
1074 $skip = 0;
1075 }
1076 }
1077
1078 if ($rest =~ s/\sIF\s+(.*)//) {
1079 if (process_if($name, $1)) {
1080 $if_set = 1;
1081 } else {
1082 $skip = 1;
1083 }
1084 $if = 1;
1085 } else {
1086 $if = 0;
1087 $if_set = 0;
1088 }
1089
1090 if (!$skip) {
1091 if ($type eq "TEST_START") {
1092 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
1093 $repeat = $1;
1094 $repeat_tests{"$test_num"} = $repeat;
1095 }
1096 } elsif ($rest =~ s/\sOVERRIDE\b//) {
1097 # DEFAULT only
1098 $override = 1;
1099 # Clear previous overrides
1100 %overrides = ();
1101 }
1102 }
1103
1104 if (!$skip && $rest !~ /^\s*$/) {
1105 die "$name: $.: Garbage found after $type\n$_";
1106 }
1107
1108 if ($skip && $type eq "TEST_START") {
1109 $test_num = $old_test_num;
1110 $repeat = $old_repeat;
1111 }
1112 } elsif (/^\s*ELSE\b(.*)$/) {
1113 if (!$if) {
1114 die "$name: $.: ELSE found with out matching IF section\n$_";
1115 }
1116 $rest = $1;
1117 if ($if_set) {
1118 $skip = 1;
1119 $rest = "";
1120 } else {
1121 $skip = 0;
1122
1123 if ($rest =~ /\sIF\s+(.*)/) {
1124 # May be a ELSE IF section.
1125 if (process_if($name, $1)) {
1126 $if_set = 1;
1127 } else {
1128 $skip = 1;
1129 }
1130 $rest = "";
1131 } else {
1132 $if = 0;
1133 }
1134 }
1135
1136 if ($rest !~ /^\s*$/) {
1137 die "$name: $.: Garbage found after DEFAULTS\n$_";
1138 }
1139
1140 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1141
1142 next if ($skip);
1143
1144 if (!$default) {
1145 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1146 }
1147
1148 my $file = process_variables($1);
1149
1150 if ($file !~ m,^/,) {
1151 # check the path of the config file first
1152 if ($config =~ m,(.*)/,) {
1153 if (-f "$1/$file") {
1154 $file = "$1/$file";
1155 }
1156 }
1157 }
1158
1159 if ( ! -r $file ) {
1160 die "$name: $.: Can't read file $file\n$_";
1161 }
1162
1163 if (__read_config($file, \$test_num)) {
1164 $test_case = 1;
1165 }
1166
1167 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1168
1169 next if ($skip);
1170
1171 my $lvalue = $1;
1172 my $rvalue = $2;
1173
1174 if ($default || $lvalue =~ /\[\d+\]$/) {
1175 set_eval($lvalue, $rvalue, $name);
1176 } else {
1177 my $val = "$lvalue\[$test_num\]";
1178 set_eval($val, $rvalue, $name);
1179 }
1180
1181 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1182
1183 next if ($skip);
1184
1185 my $lvalue = $1;
1186 my $rvalue = $2;
1187
1188 if (!$default &&
1189 ($lvalue eq "NUM_TESTS" ||
1190 $lvalue eq "LOG_FILE" ||
1191 $lvalue eq "CLEAR_LOG")) {
1192 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1193 }
1194
1195 if ($lvalue eq "NUM_TESTS") {
1196 if ($test_num) {
1197 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1198 }
1199 if (!$default) {
1200 die "$name: $.: NUM_TESTS must be set in default section\n";
1201 }
1202 $num_tests_set = 1;
1203 }
1204
1205 if ($default || $lvalue =~ /\[\d+\]$/) {
1206 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1207 } else {
1208 my $val = "$lvalue\[$test_num\]";
1209 set_value($val, $rvalue, $override, \%overrides, $name);
1210
1211 if ($repeat > 1) {
1212 $repeats{$val} = $repeat;
1213 }
1214 }
1215 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1216 next if ($skip);
1217
1218 my $lvalue = $1;
1219 my $rvalue = $2;
1220
1221 # process config variables.
1222 # Config variables are only active while reading the
1223 # config and can be defined anywhere. They also ignore
1224 # TEST_START and DEFAULTS, but are skipped if they are in
1225 # on of these sections that have SKIP defined.
1226 # The save variable can be
1227 # defined multiple times and the new one simply overrides
1228 # the previous one.
1229 set_variable($lvalue, $rvalue);
1230
1231 } else {
1232 die "$name: $.: Garbage found in config\n$_";
1233 }
1234 }
1235
1236 if ($test_num) {
1237 $test_num += $repeat - 1;
1238 $opt{"NUM_TESTS"} = $test_num;
1239 }
1240
1241 close($in);
1242
1243 $$current_test_num = $test_num;
1244
1245 return $test_case;
1246}
1247
1248sub get_test_case {
1249 print "What test case would you like to run?\n";
1250 print " (build, install or boot)\n";
1251 print " Other tests are available but require editing ktest.conf\n";
1252 print " (see tools/testing/ktest/sample.conf)\n";
1253 my $ans = <STDIN>;
1254 chomp $ans;
1255 $default{"TEST_TYPE"} = $ans;
1256}
1257
1258sub read_config {
1259 my ($config) = @_;
1260
1261 my $test_case;
1262 my $test_num = 0;
1263
1264 $test_case = __read_config $config, \$test_num;
1265
1266 # make sure we have all mandatory configs
1267 get_mandatory_configs;
1268
1269 # was a test specified?
1270 if (!$test_case) {
1271 print "No test case specified.\n";
1272 get_test_case;
1273 }
1274
1275 # set any defaults
1276
1277 foreach my $default (keys %default) {
1278 if (!defined($opt{$default})) {
1279 $opt{$default} = $default{$default};
1280 }
1281 }
1282
1283 if ($opt{"IGNORE_UNUSED"} == 1) {
1284 return;
1285 }
1286
1287 my %not_used;
1288
1289 # check if there are any stragglers (typos?)
1290 foreach my $option (keys %opt) {
1291 my $op = $option;
1292 # remove per test labels.
1293 $op =~ s/\[.*\]//;
1294 if (!exists($option_map{$op}) &&
1295 !exists($default{$op}) &&
1296 !exists($used_options{$op})) {
1297 $not_used{$op} = 1;
1298 }
1299 }
1300
1301 if (%not_used) {
1302 my $s = "s are";
1303 $s = " is" if (keys %not_used == 1);
1304 print "The following option$s not used; could be a typo:\n";
1305 foreach my $option (keys %not_used) {
1306 print "$option\n";
1307 }
1308 print "Set IGNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1309 if (!read_yn "Do you want to continue?") {
1310 exit -1;
1311 }
1312 }
1313}
1314
1315sub __eval_option {
1316 my ($name, $option, $i) = @_;
1317
1318 # Add space to evaluate the character before $
1319 $option = " $option";
1320 my $retval = "";
1321 my $repeated = 0;
1322 my $parent = 0;
1323
1324 foreach my $test (keys %repeat_tests) {
1325 if ($i >= $test &&
1326 $i < $test + $repeat_tests{$test}) {
1327
1328 $repeated = 1;
1329 $parent = $test;
1330 last;
1331 }
1332 }
1333
1334 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1335 my $start = $1;
1336 my $var = $2;
1337 my $end = $3;
1338
1339 # Append beginning of line
1340 $retval = "$retval$start";
1341
1342 # If the iteration option OPT[$i] exists, then use that.
1343 # otherwise see if the default OPT (without [$i]) exists.
1344
1345 my $o = "$var\[$i\]";
1346 my $parento = "$var\[$parent\]";
1347
1348 # If a variable contains itself, use the default var
1349 if (($var eq $name) && defined($opt{$var})) {
1350 $o = $opt{$var};
1351 $retval = "$retval$o";
1352 } elsif (defined($opt{$o})) {
1353 $o = $opt{$o};
1354 $retval = "$retval$o";
1355 } elsif ($repeated && defined($opt{$parento})) {
1356 $o = $opt{$parento};
1357 $retval = "$retval$o";
1358 } elsif (defined($opt{$var})) {
1359 $o = $opt{$var};
1360 $retval = "$retval$o";
1361 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1362 # special option KERNEL_VERSION uses kernel version
1363 get_version();
1364 $retval = "$retval$version";
1365 } else {
1366 $retval = "$retval\$\{$var\}";
1367 }
1368
1369 $option = $end;
1370 }
1371
1372 $retval = "$retval$option";
1373
1374 $retval =~ s/^ //;
1375
1376 return $retval;
1377}
1378
1379sub process_evals {
1380 my ($name, $option, $i) = @_;
1381
1382 my $option_name = "$name\[$i\]";
1383 my $ev;
1384
1385 my $old_option = $option;
1386
1387 if (defined($evals{$option_name})) {
1388 $ev = $evals{$option_name};
1389 } elsif (defined($evals{$name})) {
1390 $ev = $evals{$name};
1391 } else {
1392 return $option;
1393 }
1394
1395 for my $e (@{$ev}) {
1396 eval "\$option =~ $e";
1397 }
1398
1399 if ($option ne $old_option) {
1400 doprint("$name changed from '$old_option' to '$option'\n");
1401 }
1402
1403 return $option;
1404}
1405
1406sub eval_option {
1407 my ($name, $option, $i) = @_;
1408
1409 my $prev = "";
1410
1411 # Since an option can evaluate to another option,
1412 # keep iterating until we do not evaluate any more
1413 # options.
1414 my $r = 0;
1415 while ($prev ne $option) {
1416 # Check for recursive evaluations.
1417 # 100 deep should be more than enough.
1418 if ($r++ > 100) {
1419 die "Over 100 evaluations occurred with $option\n" .
1420 "Check for recursive variables\n";
1421 }
1422 $prev = $option;
1423 $option = __eval_option($name, $option, $i);
1424 }
1425
1426 $option = process_evals($name, $option, $i);
1427
1428 return $option;
1429}
1430
1431sub reboot {
1432 my ($time) = @_;
1433 my $powercycle = 0;
1434
1435 # test if the machine can be connected to within a few seconds
1436 my $stat = run_ssh("echo check machine status", $connect_timeout);
1437 if (!$stat) {
1438 doprint("power cycle\n");
1439 $powercycle = 1;
1440 }
1441
1442 if ($powercycle) {
1443 run_command "$power_cycle";
1444
1445 start_monitor;
1446 # flush out current monitor
1447 # May contain the reboot success line
1448 wait_for_monitor 1;
1449
1450 } else {
1451 # Make sure everything has been written to disk
1452 run_ssh("sync", 10);
1453
1454 if (defined($time)) {
1455 start_monitor;
1456 # flush out current monitor
1457 # May contain the reboot success line
1458 wait_for_monitor 1;
1459 }
1460
1461 # try to reboot normally
1462 if (run_command $reboot) {
1463 if (defined($powercycle_after_reboot)) {
1464 sleep $powercycle_after_reboot;
1465 run_command "$power_cycle";
1466 }
1467 } else {
1468 # nope? power cycle it.
1469 run_command "$power_cycle";
1470 }
1471 }
1472
1473 if (defined($time)) {
1474
1475 # We only want to get to the new kernel, don't fail
1476 # if we stumble over a call trace.
1477 my $save_ignore_errors = $ignore_errors;
1478 $ignore_errors = 1;
1479
1480 # Look for the good kernel to boot
1481 if (wait_for_monitor($time, "Linux version")) {
1482 # reboot got stuck?
1483 doprint "Reboot did not finish. Forcing power cycle\n";
1484 run_command "$power_cycle";
1485 }
1486
1487 $ignore_errors = $save_ignore_errors;
1488
1489 # Still need to wait for the reboot to finish
1490 wait_for_monitor($time, $reboot_success_line);
1491
1492 end_monitor;
1493 }
1494}
1495
1496sub reboot_to_good {
1497 my ($time) = @_;
1498
1499 if (defined($switch_to_good)) {
1500 run_command $switch_to_good;
1501 }
1502
1503 reboot $time;
1504}
1505
1506sub do_not_reboot {
1507 my $i = $iteration;
1508
1509 return $test_type eq "build" || $no_reboot ||
1510 ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
1511 ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
1512 ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
1513}
1514
1515sub get_test_name() {
1516 my $name;
1517
1518 if (defined($test_name)) {
1519 $name = "$test_name:$test_type";
1520 } else {
1521 $name = $test_type;
1522 }
1523 return $name;
1524}
1525
1526sub dodie {
1527 # avoid recursion
1528 return if ($in_die);
1529 $in_die = 1;
1530
1531 my $i = $iteration;
1532
1533 doprint "CRITICAL FAILURE... [TEST $i] ", @_, "\n";
1534
1535 if ($reboot_on_error && !do_not_reboot) {
1536 doprint "REBOOTING\n";
1537 reboot_to_good;
1538 } elsif ($poweroff_on_error && defined($power_off)) {
1539 doprint "POWERING OFF\n";
1540 `$power_off`;
1541 }
1542
1543 if (defined($opt{"LOG_FILE"})) {
1544 print " See $opt{LOG_FILE} for more info.\n";
1545 }
1546
1547 if ($email_on_error) {
1548 my $name = get_test_name;
1549 my $log_file;
1550
1551 if (defined($opt{"LOG_FILE"})) {
1552 my $whence = 2; # End of file
1553 my $log_size = tell LOG;
1554 my $size = $log_size - $test_log_start;
1555
1556 if (defined($mail_max_size)) {
1557 if ($size > $mail_max_size) {
1558 $size = $mail_max_size;
1559 }
1560 }
1561 my $pos = - $size;
1562 $log_file = "$tmpdir/log";
1563 open (L, "$opt{LOG_FILE}") or die "Can't open $opt{LOG_FILE} to read)";
1564 open (O, "> $tmpdir/log") or die "Can't open $tmpdir/log\n";
1565 seek(L, $pos, $whence);
1566 while (<L>) {
1567 print O;
1568 }
1569 close O;
1570 close L;
1571 }
1572
1573 send_email("KTEST: critical failure for test $i [$name]",
1574 "Your test started at $script_start_time has failed with:\n@_\n", $log_file);
1575 }
1576
1577 if ($monitor_cnt) {
1578 # restore terminal settings
1579 system("stty $stty_orig");
1580 }
1581
1582 if (defined($post_test)) {
1583 run_command $post_test;
1584 }
1585
1586 die @_, "\n";
1587}
1588
1589sub create_pty {
1590 my ($ptm, $pts) = @_;
1591 my $tmp;
1592 my $TIOCSPTLCK = 0x40045431;
1593 my $TIOCGPTN = 0x80045430;
1594
1595 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1596 dodie "Can't open /dev/ptmx";
1597
1598 # unlockpt()
1599 $tmp = pack("i", 0);
1600 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1601 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1602
1603 # ptsname()
1604 ioctl($ptm, $TIOCGPTN, $tmp) or
1605 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1606 $tmp = unpack("i", $tmp);
1607
1608 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1609 dodie "Can't open /dev/pts/$tmp";
1610}
1611
1612sub exec_console {
1613 my ($ptm, $pts) = @_;
1614
1615 close($ptm);
1616
1617 close(\*STDIN);
1618 close(\*STDOUT);
1619 close(\*STDERR);
1620
1621 open(\*STDIN, '<&', $pts);
1622 open(\*STDOUT, '>&', $pts);
1623 open(\*STDERR, '>&', $pts);
1624
1625 close($pts);
1626
1627 exec $console or
1628 dodie "Can't open console $console";
1629}
1630
1631sub open_console {
1632 my ($ptm) = @_;
1633 my $pts = \*PTSFD;
1634 my $pid;
1635
1636 # save terminal settings
1637 $stty_orig = `stty -g`;
1638
1639 # place terminal in cbreak mode so that stdin can be read one character at
1640 # a time without having to wait for a newline
1641 system("stty -icanon -echo -icrnl");
1642
1643 create_pty($ptm, $pts);
1644
1645 $pid = fork;
1646
1647 if (!$pid) {
1648 # child
1649 exec_console($ptm, $pts)
1650 }
1651
1652 # parent
1653 close($pts);
1654
1655 return $pid;
1656
1657 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1658}
1659
1660sub close_console {
1661 my ($fp, $pid) = @_;
1662
1663 doprint "kill child process $pid\n";
1664 kill $close_console_signal, $pid;
1665
1666 doprint "wait for child process $pid to exit\n";
1667 waitpid($pid, 0);
1668
1669 print "closing!\n";
1670 close($fp);
1671
1672 # restore terminal settings
1673 system("stty $stty_orig");
1674}
1675
1676sub start_monitor {
1677 if ($monitor_cnt++) {
1678 return;
1679 }
1680 $monitor_fp = \*MONFD;
1681 $monitor_pid = open_console $monitor_fp;
1682
1683 return;
1684
1685 open(MONFD, "Stop perl from warning about single use of MONFD");
1686}
1687
1688sub end_monitor {
1689 return if (!defined $console);
1690 if (--$monitor_cnt) {
1691 return;
1692 }
1693 close_console($monitor_fp, $monitor_pid);
1694}
1695
1696sub wait_for_monitor {
1697 my ($time, $stop) = @_;
1698 my $full_line = "";
1699 my $line;
1700 my $booted = 0;
1701 my $start_time = time;
1702 my $skip_call_trace = 0;
1703 my $bug = 0;
1704 my $bug_ignored = 0;
1705 my $now;
1706
1707 doprint "** Wait for monitor to settle down **\n";
1708
1709 # read the monitor and wait for the system to calm down
1710 while (!$booted) {
1711 $line = wait_for_input($monitor_fp, $time);
1712 last if (!defined($line));
1713 print "$line";
1714 $full_line .= $line;
1715
1716 if (defined($stop) && $full_line =~ /$stop/) {
1717 doprint "wait for monitor detected $stop\n";
1718 $booted = 1;
1719 }
1720
1721 if ($full_line =~ /\[ backtrace testing \]/) {
1722 $skip_call_trace = 1;
1723 }
1724
1725 if ($full_line =~ /call trace:/i) {
1726 if (!$bug && !$skip_call_trace) {
1727 if ($ignore_errors) {
1728 $bug_ignored = 1;
1729 } else {
1730 $bug = 1;
1731 }
1732 }
1733 }
1734
1735 if ($full_line =~ /\[ end of backtrace testing \]/) {
1736 $skip_call_trace = 0;
1737 }
1738
1739 if ($full_line =~ /Kernel panic -/) {
1740 $bug = 1;
1741 }
1742
1743 if ($line =~ /\n/) {
1744 $full_line = "";
1745 }
1746 $now = time;
1747 if ($now - $start_time >= $max_monitor_wait) {
1748 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1749 return 1;
1750 }
1751 }
1752 print "** Monitor flushed **\n";
1753
1754 # if stop is defined but wasn't hit, return error
1755 # used by reboot (which wants to see a reboot)
1756 if (defined($stop) && !$booted) {
1757 $bug = 1;
1758 }
1759 return $bug;
1760}
1761
1762sub save_logs {
1763 my ($result, $basedir) = @_;
1764 my @t = localtime;
1765 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1766 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1767
1768 my $type = $build_type;
1769 if ($type =~ /useconfig/) {
1770 $type = "useconfig";
1771 }
1772
1773 my $dir = "$machine-$test_type-$type-$result-$date";
1774
1775 $dir = "$basedir/$dir";
1776
1777 if (!-d $dir) {
1778 mkpath($dir) or
1779 dodie "can't create $dir";
1780 }
1781
1782 my %files = (
1783 "config" => $output_config,
1784 "buildlog" => $buildlog,
1785 "dmesg" => $dmesg,
1786 "testlog" => $testlog,
1787 );
1788
1789 while (my ($name, $source) = each(%files)) {
1790 if (-f "$source") {
1791 cp "$source", "$dir/$name" or
1792 dodie "failed to copy $source";
1793 }
1794 }
1795
1796 doprint "*** Saved info to $dir ***\n";
1797}
1798
1799sub fail {
1800
1801 if ($die_on_failure) {
1802 dodie @_;
1803 }
1804
1805 doprint "FAILED\n";
1806
1807 my $i = $iteration;
1808
1809 # no need to reboot for just building.
1810 if (!do_not_reboot) {
1811 doprint "REBOOTING\n";
1812 reboot_to_good $sleep_time;
1813 }
1814
1815 my $name = "";
1816
1817 if (defined($test_name)) {
1818 $name = " ($test_name)";
1819 }
1820
1821 print_times;
1822
1823 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1824 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1825 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1826 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1827 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1828
1829 if (defined($store_failures)) {
1830 save_logs "fail", $store_failures;
1831 }
1832
1833 if (defined($post_test)) {
1834 run_command $post_test;
1835 }
1836
1837 return 1;
1838}
1839
1840sub run_command {
1841 my ($command, $redirect, $timeout) = @_;
1842 my $start_time;
1843 my $end_time;
1844 my $dolog = 0;
1845 my $dord = 0;
1846 my $dostdout = 0;
1847 my $pid;
1848 my $command_orig = $command;
1849
1850 $command =~ s/\$SSH_USER/$ssh_user/g;
1851 $command =~ s/\$MACHINE/$machine/g;
1852
1853 doprint("$command ... ");
1854 $start_time = time;
1855
1856 $pid = open(CMD, "$command 2>&1 |") or
1857 (fail "unable to exec $command" and return 0);
1858
1859 if (defined($opt{"LOG_FILE"})) {
1860 $dolog = 1;
1861 }
1862
1863 if (defined($redirect)) {
1864 if ($redirect eq 1) {
1865 $dostdout = 1;
1866 # Have the output of the command on its own line
1867 doprint "\n";
1868 } else {
1869 open (RD, ">$redirect") or
1870 dodie "failed to write to redirect $redirect";
1871 $dord = 1;
1872 }
1873 }
1874
1875 my $hit_timeout = 0;
1876
1877 while (1) {
1878 my $fp = \*CMD;
1879 if (defined($timeout)) {
1880 doprint "timeout = $timeout\n";
1881 }
1882 my $line = wait_for_input($fp, $timeout);
1883 if (!defined($line)) {
1884 my $now = time;
1885 if (defined($timeout) && (($now - $start_time) >= $timeout)) {
1886 doprint "Hit timeout of $timeout, killing process\n";
1887 $hit_timeout = 1;
1888 kill 9, $pid;
1889 }
1890 last;
1891 }
1892 print LOG $line if ($dolog);
1893 print RD $line if ($dord);
1894 print $line if ($dostdout);
1895 }
1896
1897 waitpid($pid, 0);
1898 # shift 8 for real exit status
1899 $run_command_status = $? >> 8;
1900
1901 if ($command_orig eq $default{REBOOT} &&
1902 $run_command_status == $reboot_return_code) {
1903 $run_command_status = 0;
1904 }
1905
1906 close(CMD);
1907 close(RD) if ($dord);
1908
1909 $end_time = time;
1910 my $delta = $end_time - $start_time;
1911
1912 if ($delta == 1) {
1913 doprint "[1 second] ";
1914 } else {
1915 doprint "[$delta seconds] ";
1916 }
1917
1918 if ($hit_timeout) {
1919 $run_command_status = 1;
1920 }
1921
1922 if ($run_command_status) {
1923 doprint "FAILED!\n";
1924 } else {
1925 doprint "SUCCESS\n";
1926 }
1927
1928 return !$run_command_status;
1929}
1930
1931sub run_ssh {
1932 my ($cmd, $timeout) = @_;
1933 my $cp_exec = $ssh_exec;
1934
1935 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1936 return run_command "$cp_exec", undef , $timeout;
1937}
1938
1939sub run_scp {
1940 my ($src, $dst, $cp_scp) = @_;
1941
1942 $cp_scp =~ s/\$SRC_FILE/$src/g;
1943 $cp_scp =~ s/\$DST_FILE/$dst/g;
1944
1945 return run_command "$cp_scp";
1946}
1947
1948sub run_scp_install {
1949 my ($src, $dst) = @_;
1950
1951 my $cp_scp = $scp_to_target_install;
1952
1953 return run_scp($src, $dst, $cp_scp);
1954}
1955
1956sub run_scp_mod {
1957 my ($src, $dst) = @_;
1958
1959 my $cp_scp = $scp_to_target;
1960
1961 return run_scp($src, $dst, $cp_scp);
1962}
1963
1964sub _get_grub_index {
1965
1966 my ($command, $target, $skip) = @_;
1967
1968 return if (defined($grub_number) && defined($last_grub_menu) &&
1969 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1970 $last_machine eq $machine);
1971
1972 doprint "Find $reboot_type menu ... ";
1973 $grub_number = -1;
1974
1975 my $ssh_grub = $ssh_exec;
1976 $ssh_grub =~ s,\$SSH_COMMAND,$command,g;
1977
1978 open(IN, "$ssh_grub |") or
1979 dodie "unable to execute $command";
1980
1981 my $found = 0;
1982
1983 while (<IN>) {
1984 if (/$target/) {
1985 $grub_number++;
1986 $found = 1;
1987 last;
1988 } elsif (/$skip/) {
1989 $grub_number++;
1990 }
1991 }
1992 close(IN);
1993
1994 dodie "Could not find '$grub_menu' through $command on $machine"
1995 if (!$found);
1996 doprint "$grub_number\n";
1997 $last_grub_menu = $grub_menu;
1998 $last_machine = $machine;
1999}
2000
2001sub get_grub_index {
2002
2003 my $command;
2004 my $target;
2005 my $skip;
2006 my $grub_menu_qt;
2007
2008 if ($reboot_type !~ /^grub/) {
2009 return;
2010 }
2011
2012 $grub_menu_qt = quotemeta($grub_menu);
2013
2014 if ($reboot_type eq "grub") {
2015 $command = "cat /boot/grub/menu.lst";
2016 $target = '^\s*title\s+' . $grub_menu_qt . '\s*$';
2017 $skip = '^\s*title\s';
2018 } elsif ($reboot_type eq "grub2") {
2019 $command = "cat $grub_file";
2020 $target = '^menuentry.*' . $grub_menu_qt;
2021 $skip = '^menuentry\s|^submenu\s';
2022 } elsif ($reboot_type eq "grub2bls") {
2023 $command = $grub_bls_get;
2024 $target = '^title=.*' . $grub_menu_qt;
2025 $skip = '^title=';
2026 } else {
2027 return;
2028 }
2029
2030 _get_grub_index($command, $target, $skip);
2031}
2032
2033sub wait_for_input {
2034 my ($fp, $time) = @_;
2035 my $start_time;
2036 my $rin;
2037 my $rout;
2038 my $nr;
2039 my $buf;
2040 my $line;
2041 my $ch;
2042
2043 if (!defined($time)) {
2044 $time = $timeout;
2045 }
2046
2047 $rin = '';
2048 vec($rin, fileno($fp), 1) = 1;
2049 vec($rin, fileno(\*STDIN), 1) = 1;
2050
2051 $start_time = time;
2052
2053 while (1) {
2054 $nr = select($rout=$rin, undef, undef, $time);
2055
2056 last if ($nr <= 0);
2057
2058 # copy data from stdin to the console
2059 if (vec($rout, fileno(\*STDIN), 1) == 1) {
2060 $nr = sysread(\*STDIN, $buf, 1000);
2061 syswrite($fp, $buf, $nr) if ($nr > 0);
2062 }
2063
2064 # The timeout is based on time waiting for the fp data
2065 if (vec($rout, fileno($fp), 1) != 1) {
2066 last if (defined($time) && (time - $start_time > $time));
2067 next;
2068 }
2069
2070 $line = "";
2071
2072 # try to read one char at a time
2073 while (sysread $fp, $ch, 1) {
2074 $line .= $ch;
2075 last if ($ch eq "\n");
2076 }
2077
2078 last if (!length($line));
2079
2080 return $line;
2081 }
2082 return undef;
2083}
2084
2085sub reboot_to {
2086 if (defined($switch_to_test)) {
2087 run_command $switch_to_test;
2088 }
2089
2090 if ($reboot_type eq "grub") {
2091 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
2092 } elsif (($reboot_type eq "grub2") or ($reboot_type eq "grub2bls")) {
2093 run_ssh "$grub_reboot $grub_number";
2094 } elsif ($reboot_type eq "syslinux") {
2095 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
2096 } elsif (defined $reboot_script) {
2097 run_command "$reboot_script";
2098 }
2099 reboot;
2100}
2101
2102sub get_sha1 {
2103 my ($commit) = @_;
2104
2105 doprint "git rev-list --max-count=1 $commit ... ";
2106 my $sha1 = `git rev-list --max-count=1 $commit`;
2107 my $ret = $?;
2108
2109 logit $sha1;
2110
2111 if ($ret) {
2112 doprint "FAILED\n";
2113 dodie "Failed to get git $commit";
2114 }
2115
2116 print "SUCCESS\n";
2117
2118 chomp $sha1;
2119
2120 return $sha1;
2121}
2122
2123sub monitor {
2124 my $booted = 0;
2125 my $bug = 0;
2126 my $bug_ignored = 0;
2127 my $skip_call_trace = 0;
2128 my $loops;
2129
2130 my $start_time = time;
2131
2132 wait_for_monitor 5;
2133
2134 my $line;
2135 my $full_line = "";
2136
2137 open(DMESG, "> $dmesg") or
2138 dodie "unable to write to $dmesg";
2139
2140 reboot_to;
2141
2142 my $success_start;
2143 my $failure_start;
2144 my $monitor_start = time;
2145 my $done = 0;
2146 my $version_found = 0;
2147
2148 while (!$done) {
2149 if ($bug && defined($stop_after_failure) &&
2150 $stop_after_failure >= 0) {
2151 my $time = $stop_after_failure - (time - $failure_start);
2152 $line = wait_for_input($monitor_fp, $time);
2153 if (!defined($line)) {
2154 doprint "bug timed out after $booted_timeout seconds\n";
2155 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2156 last;
2157 }
2158 } elsif ($booted) {
2159 $line = wait_for_input($monitor_fp, $booted_timeout);
2160 if (!defined($line)) {
2161 my $s = $booted_timeout == 1 ? "" : "s";
2162 doprint "Successful boot found: break after $booted_timeout second$s\n";
2163 last;
2164 }
2165 } else {
2166 $line = wait_for_input($monitor_fp);
2167 if (!defined($line)) {
2168 my $s = $timeout == 1 ? "" : "s";
2169 doprint "Timed out after $timeout second$s\n";
2170 last;
2171 }
2172 }
2173
2174 doprint $line;
2175 print DMESG $line;
2176
2177 # we are not guaranteed to get a full line
2178 $full_line .= $line;
2179
2180 if ($full_line =~ /$success_line/) {
2181 $booted = 1;
2182 $success_start = time;
2183 }
2184
2185 if ($booted && defined($stop_after_success) &&
2186 $stop_after_success >= 0) {
2187 my $now = time;
2188 if ($now - $success_start >= $stop_after_success) {
2189 doprint "Test forced to stop after $stop_after_success seconds after success\n";
2190 last;
2191 }
2192 }
2193
2194 if ($full_line =~ /\[ backtrace testing \]/) {
2195 $skip_call_trace = 1;
2196 }
2197
2198 if ($full_line =~ /call trace:/i) {
2199 if (!$bug && !$skip_call_trace) {
2200 if ($ignore_errors) {
2201 $bug_ignored = 1;
2202 } else {
2203 $bug = 1;
2204 $failure_start = time;
2205 }
2206 }
2207 }
2208
2209 if ($bug && defined($stop_after_failure) &&
2210 $stop_after_failure >= 0) {
2211 my $now = time;
2212 if ($now - $failure_start >= $stop_after_failure) {
2213 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2214 last;
2215 }
2216 }
2217
2218 if ($full_line =~ /\[ end of backtrace testing \]/) {
2219 $skip_call_trace = 0;
2220 }
2221
2222 if ($full_line =~ /Kernel panic -/) {
2223 $failure_start = time;
2224 $bug = 1;
2225 }
2226
2227 # Detect triple faults by testing the banner
2228 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2229 if ($1 eq $version) {
2230 $version_found = 1;
2231 } elsif ($version_found && $detect_triplefault) {
2232 # We already booted into the kernel we are testing,
2233 # but now we booted into another kernel?
2234 # Consider this a triple fault.
2235 doprint "Already booted in Linux kernel $version, but now\n";
2236 doprint "we booted into Linux kernel $1.\n";
2237 doprint "Assuming that this is a triple fault.\n";
2238 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2239 last;
2240 }
2241 }
2242
2243 if ($line =~ /\n/) {
2244 $full_line = "";
2245 }
2246
2247 if ($stop_test_after > 0 && !$booted && !$bug) {
2248 if (time - $monitor_start > $stop_test_after) {
2249 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2250 $done = 1;
2251 }
2252 }
2253 }
2254
2255 my $end_time = time;
2256 $reboot_time = $end_time - $start_time;
2257
2258 close(DMESG);
2259
2260 if ($bug) {
2261 return 0 if ($in_bisect);
2262 fail "failed - got a bug report" and return 0;
2263 }
2264
2265 if (!$booted) {
2266 return 0 if ($in_bisect);
2267 fail "failed - never got a boot prompt." and return 0;
2268 }
2269
2270 if ($bug_ignored) {
2271 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2272 }
2273
2274 return 1;
2275}
2276
2277sub eval_kernel_version {
2278 my ($option) = @_;
2279
2280 $option =~ s/\$KERNEL_VERSION/$version/g;
2281
2282 return $option;
2283}
2284
2285sub do_post_install {
2286
2287 return if (!defined($post_install));
2288
2289 my $cp_post_install = eval_kernel_version $post_install;
2290 run_command "$cp_post_install" or
2291 dodie "Failed to run post install";
2292}
2293
2294# Sometimes the reboot fails, and will hang. We try to ssh to the box
2295# and if we fail, we force another reboot, that should powercycle it.
2296sub test_booted {
2297 if (!run_ssh "echo testing connection") {
2298 reboot $sleep_time;
2299 }
2300}
2301
2302sub install {
2303
2304 return if ($no_install);
2305
2306 my $start_time = time;
2307
2308 if (defined($pre_install)) {
2309 my $cp_pre_install = eval_kernel_version $pre_install;
2310 run_command "$cp_pre_install" or
2311 dodie "Failed to run pre install";
2312 }
2313
2314 my $cp_target = eval_kernel_version $target_image;
2315
2316 test_booted;
2317
2318 run_scp_install "$outputdir/$build_target", "$cp_target" or
2319 dodie "failed to copy image";
2320
2321 my $install_mods = 0;
2322
2323 # should we process modules?
2324 $install_mods = 0;
2325 open(IN, "$output_config") or dodie("Can't read config file");
2326 while (<IN>) {
2327 if (/CONFIG_MODULES(=y)?/) {
2328 if (defined($1)) {
2329 $install_mods = 1;
2330 last;
2331 }
2332 }
2333 }
2334 close(IN);
2335
2336 if (!$install_mods) {
2337 do_post_install;
2338 doprint "No modules needed\n";
2339 my $end_time = time;
2340 $install_time = $end_time - $start_time;
2341 return;
2342 }
2343
2344 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2345 dodie "Failed to install modules";
2346
2347 my $modlib = "/lib/modules/$version";
2348 my $modtar = "ktest-mods.tar.bz2";
2349
2350 run_ssh "rm -rf $modlib" or
2351 dodie "failed to remove old mods: $modlib";
2352
2353 # would be nice if scp -r did not follow symbolic links
2354 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2355 dodie "making tarball";
2356
2357 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2358 dodie "failed to copy modules";
2359
2360 unlink "$tmpdir/$modtar";
2361
2362 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2363 dodie "failed to tar modules";
2364
2365 run_ssh "rm -f /tmp/$modtar";
2366
2367 do_post_install;
2368
2369 my $end_time = time;
2370 $install_time = $end_time - $start_time;
2371}
2372
2373sub get_version {
2374 # get the release name
2375 return if ($have_version);
2376 doprint "$make kernelrelease ... ";
2377 $version = `$make -s kernelrelease | tail -1`;
2378 chomp($version);
2379 doprint "$version\n";
2380 $have_version = 1;
2381}
2382
2383sub start_monitor_and_install {
2384 # Make sure the stable kernel has finished booting
2385
2386 # Install bisects, don't need console
2387 if (defined $console) {
2388 start_monitor;
2389 wait_for_monitor 5;
2390 end_monitor;
2391 }
2392
2393 get_grub_index;
2394 get_version;
2395 install;
2396
2397 start_monitor if (defined $console);
2398 return monitor;
2399}
2400
2401sub process_warning_line {
2402 my ($line) = @_;
2403
2404 chomp $line;
2405
2406 # for distcc heterogeneous systems, some compilers
2407 # do things differently causing warning lines
2408 # to be slightly different. This makes an attempt
2409 # to fixe those issues.
2410
2411 # chop off the index into the line
2412 # using distcc, some compilers give different indexes
2413 # depending on white space
2414 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2415
2416 # Some compilers use UTF-8 extended for quotes and some don't.
2417 $line =~ s/$utf8_quote/'/g;
2418
2419 return $line;
2420}
2421
2422# Read buildlog and check against warnings file for any
2423# new warnings.
2424#
2425# Returns 1 if OK
2426# 0 otherwise
2427sub check_buildlog {
2428 return 1 if (!defined $warnings_file);
2429
2430 my %warnings_list;
2431
2432 # Failed builds should not reboot the target
2433 my $save_no_reboot = $no_reboot;
2434 $no_reboot = 1;
2435
2436 if (-f $warnings_file) {
2437 open(IN, $warnings_file) or
2438 dodie "Error opening $warnings_file";
2439
2440 while (<IN>) {
2441 if (/$check_build_re/) {
2442 my $warning = process_warning_line $_;
2443
2444 $warnings_list{$warning} = 1;
2445 }
2446 }
2447 close(IN);
2448 }
2449
2450 # If warnings file didn't exist, and WARNINGS_FILE exist,
2451 # then we fail on any warning!
2452
2453 open(IN, $buildlog) or dodie "Can't open $buildlog";
2454 while (<IN>) {
2455 if (/$check_build_re/) {
2456 my $warning = process_warning_line $_;
2457
2458 if (!defined $warnings_list{$warning}) {
2459 fail "New warning found (not in $warnings_file)\n$_\n";
2460 $no_reboot = $save_no_reboot;
2461 return 0;
2462 }
2463 }
2464 }
2465 $no_reboot = $save_no_reboot;
2466 close(IN);
2467}
2468
2469sub check_patch_buildlog {
2470 my ($patch) = @_;
2471
2472 my @files = `git show $patch | diffstat -l`;
2473
2474 foreach my $file (@files) {
2475 chomp $file;
2476 }
2477
2478 open(IN, "git show $patch |") or
2479 dodie "failed to show $patch";
2480 while (<IN>) {
2481 if (m,^--- a/(.*),) {
2482 chomp $1;
2483 $files[$#files] = $1;
2484 }
2485 }
2486 close(IN);
2487
2488 open(IN, $buildlog) or dodie "Can't open $buildlog";
2489 while (<IN>) {
2490 if (/^\s*(.*?):.*(warning|error)/) {
2491 my $err = $1;
2492 foreach my $file (@files) {
2493 my $fullpath = "$builddir/$file";
2494 if ($file eq $err || $fullpath eq $err) {
2495 fail "$file built with warnings" and return 0;
2496 }
2497 }
2498 }
2499 }
2500 close(IN);
2501
2502 return 1;
2503}
2504
2505sub apply_min_config {
2506 my $outconfig = "$output_config.new";
2507
2508 # Read the config file and remove anything that
2509 # is in the force_config hash (from minconfig and others)
2510 # then add the force config back.
2511
2512 doprint "Applying minimum configurations into $output_config.new\n";
2513
2514 open (OUT, ">$outconfig") or
2515 dodie "Can't create $outconfig";
2516
2517 if (-f $output_config) {
2518 open (IN, $output_config) or
2519 dodie "Failed to open $output_config";
2520 while (<IN>) {
2521 if (/^(# )?(CONFIG_[^\s=]*)/) {
2522 next if (defined($force_config{$2}));
2523 }
2524 print OUT;
2525 }
2526 close IN;
2527 }
2528 foreach my $config (keys %force_config) {
2529 print OUT "$force_config{$config}\n";
2530 }
2531 close OUT;
2532
2533 run_command "mv $outconfig $output_config";
2534}
2535
2536sub make_oldconfig {
2537
2538 my @force_list = keys %force_config;
2539
2540 if ($#force_list >= 0) {
2541 apply_min_config;
2542 }
2543
2544 if (!run_command "$make olddefconfig") {
2545 # Perhaps olddefconfig doesn't exist in this version of the kernel
2546 # try oldnoconfig
2547 doprint "olddefconfig failed, trying make oldnoconfig\n";
2548 if (!run_command "$make oldnoconfig") {
2549 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2550 # try a yes '' | oldconfig
2551 run_command "yes '' | $make oldconfig" or
2552 dodie "failed make config oldconfig";
2553 }
2554 }
2555}
2556
2557# read a config file and use this to force new configs.
2558sub load_force_config {
2559 my ($config) = @_;
2560
2561 doprint "Loading force configs from $config\n";
2562 open(IN, $config) or
2563 dodie "failed to read $config";
2564 while (<IN>) {
2565 chomp;
2566 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2567 $force_config{$1} = $_;
2568 } elsif (/^# (CONFIG_\S*) is not set/) {
2569 $force_config{$1} = $_;
2570 }
2571 }
2572 close IN;
2573}
2574
2575sub build {
2576 my ($type) = @_;
2577
2578 unlink $buildlog;
2579
2580 my $start_time = time;
2581
2582 # Failed builds should not reboot the target
2583 my $save_no_reboot = $no_reboot;
2584 $no_reboot = 1;
2585
2586 # Calculate a new version from here.
2587 $have_version = 0;
2588
2589 if (defined($pre_build)) {
2590 my $ret = run_command $pre_build;
2591 if (!$ret && defined($pre_build_die) &&
2592 $pre_build_die) {
2593 dodie "failed to pre_build\n";
2594 }
2595 }
2596
2597 if ($type =~ /^useconfig:(.*)/) {
2598 run_command "cp $1 $output_config" or
2599 dodie "could not copy $1 to .config";
2600
2601 $type = "oldconfig";
2602 }
2603
2604 # old config can ask questions
2605 if ($type eq "oldconfig") {
2606 $type = "olddefconfig";
2607
2608 # allow for empty configs
2609 run_command "touch $output_config";
2610
2611 if (!$noclean) {
2612 run_command "mv $output_config $outputdir/config_temp" or
2613 dodie "moving .config";
2614
2615 run_command "$make mrproper" or dodie "make mrproper";
2616
2617 run_command "mv $outputdir/config_temp $output_config" or
2618 dodie "moving config_temp";
2619 }
2620 } elsif (!$noclean) {
2621 unlink "$output_config";
2622 run_command "$make mrproper" or
2623 dodie "make mrproper";
2624 }
2625
2626 # add something to distinguish this build
2627 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2628 print OUT "$localversion\n";
2629 close(OUT);
2630
2631 if (defined($minconfig)) {
2632 load_force_config($minconfig);
2633 }
2634
2635 if ($type ne "olddefconfig") {
2636 run_command "$make $type" or
2637 dodie "failed make config";
2638 }
2639 # Run old config regardless, to enforce min configurations
2640 make_oldconfig;
2641
2642 if (not defined($build_options)){
2643 $build_options = "";
2644 }
2645 my $build_ret = run_command "$make $build_options", $buildlog;
2646
2647 if (defined($post_build)) {
2648 # Because a post build may change the kernel version
2649 # do it now.
2650 get_version;
2651 my $ret = run_command $post_build;
2652 if (!$ret && defined($post_build_die) &&
2653 $post_build_die) {
2654 dodie "failed to post_build\n";
2655 }
2656 }
2657
2658 if (!$build_ret) {
2659 # bisect may need this to pass
2660 if ($in_bisect) {
2661 $no_reboot = $save_no_reboot;
2662 return 0;
2663 }
2664 fail "failed build" and return 0;
2665 }
2666
2667 $no_reboot = $save_no_reboot;
2668
2669 my $end_time = time;
2670 $build_time = $end_time - $start_time;
2671
2672 return 1;
2673}
2674
2675sub halt {
2676 if (!run_ssh "halt" or defined($power_off)) {
2677 if (defined($poweroff_after_halt)) {
2678 sleep $poweroff_after_halt;
2679 run_command "$power_off";
2680 }
2681 } else {
2682 # nope? the zap it!
2683 run_command "$power_off";
2684 }
2685}
2686
2687sub success {
2688 my ($i) = @_;
2689
2690 $successes++;
2691
2692 my $name = "";
2693
2694 if (defined($test_name)) {
2695 $name = " ($test_name)";
2696 }
2697
2698 print_times;
2699
2700 doprint "\n\n";
2701 doprint "*******************************************\n";
2702 doprint "*******************************************\n";
2703 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2704 doprint "*******************************************\n";
2705 doprint "*******************************************\n";
2706
2707 if (defined($store_successes)) {
2708 save_logs "success", $store_successes;
2709 }
2710
2711 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2712 doprint "Reboot and wait $sleep_time seconds\n";
2713 reboot_to_good $sleep_time;
2714 }
2715
2716 if (defined($post_test)) {
2717 run_command $post_test;
2718 }
2719}
2720
2721sub answer_bisect {
2722 for (;;) {
2723 doprint "Pass, fail, or skip? [p/f/s]";
2724 my $ans = <STDIN>;
2725 chomp $ans;
2726 if ($ans eq "p" || $ans eq "P") {
2727 return 1;
2728 } elsif ($ans eq "f" || $ans eq "F") {
2729 return 0;
2730 } elsif ($ans eq "s" || $ans eq "S") {
2731 return -1;
2732 } else {
2733 print "Please answer 'p', 'f', or 's'\n";
2734 }
2735 }
2736}
2737
2738sub child_run_test {
2739
2740 # child should have no power
2741 $reboot_on_error = 0;
2742 $poweroff_on_error = 0;
2743 $die_on_failure = 1;
2744
2745 run_command $run_test, $testlog;
2746
2747 exit $run_command_status;
2748}
2749
2750sub child_finished {
2751 $child_done = 1;
2752}
2753
2754sub do_run_test {
2755 my $child_pid;
2756 my $child_exit;
2757 my $line;
2758 my $full_line;
2759 my $bug = 0;
2760 my $bug_ignored = 0;
2761
2762 my $start_time = time;
2763
2764 wait_for_monitor 1;
2765
2766 doprint "run test $run_test\n";
2767
2768 $child_done = 0;
2769
2770 $SIG{CHLD} = qw(child_finished);
2771
2772 $child_pid = fork;
2773
2774 child_run_test if (!$child_pid);
2775
2776 $full_line = "";
2777
2778 do {
2779 $line = wait_for_input($monitor_fp, 1);
2780 if (defined($line)) {
2781
2782 # we are not guaranteed to get a full line
2783 $full_line .= $line;
2784 doprint $line;
2785
2786 if ($full_line =~ /call trace:/i) {
2787 if ($ignore_errors) {
2788 $bug_ignored = 1;
2789 } else {
2790 $bug = 1;
2791 }
2792 }
2793
2794 if ($full_line =~ /Kernel panic -/) {
2795 $bug = 1;
2796 }
2797
2798 if ($line =~ /\n/) {
2799 $full_line = "";
2800 }
2801 }
2802 } while (!$child_done && !$bug);
2803
2804 if (!$bug && $bug_ignored) {
2805 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2806 }
2807
2808 if ($bug) {
2809 my $failure_start = time;
2810 my $now;
2811 do {
2812 $line = wait_for_input($monitor_fp, 1);
2813 if (defined($line)) {
2814 doprint $line;
2815 }
2816 $now = time;
2817 if ($now - $failure_start >= $stop_after_failure) {
2818 last;
2819 }
2820 } while (defined($line));
2821
2822 doprint "Detected kernel crash!\n";
2823 # kill the child with extreme prejudice
2824 kill 9, $child_pid;
2825 }
2826
2827 waitpid $child_pid, 0;
2828 $child_exit = $? >> 8;
2829
2830 my $end_time = time;
2831 $test_time = $end_time - $start_time;
2832
2833 if (!$bug && $in_bisect) {
2834 if (defined($bisect_ret_good)) {
2835 if ($child_exit == $bisect_ret_good) {
2836 return 1;
2837 }
2838 }
2839 if (defined($bisect_ret_skip)) {
2840 if ($child_exit == $bisect_ret_skip) {
2841 return -1;
2842 }
2843 }
2844 if (defined($bisect_ret_abort)) {
2845 if ($child_exit == $bisect_ret_abort) {
2846 fail "test abort" and return -2;
2847 }
2848 }
2849 if (defined($bisect_ret_bad)) {
2850 if ($child_exit == $bisect_ret_skip) {
2851 return 0;
2852 }
2853 }
2854 if (defined($bisect_ret_default)) {
2855 if ($bisect_ret_default eq "good") {
2856 return 1;
2857 } elsif ($bisect_ret_default eq "bad") {
2858 return 0;
2859 } elsif ($bisect_ret_default eq "skip") {
2860 return -1;
2861 } elsif ($bisect_ret_default eq "abort") {
2862 return -2;
2863 } else {
2864 fail "unknown default action: $bisect_ret_default"
2865 and return -2;
2866 }
2867 }
2868 }
2869
2870 if ($bug || $child_exit) {
2871 return 0 if $in_bisect;
2872 fail "test failed" and return 0;
2873 }
2874 return 1;
2875}
2876
2877sub run_git_bisect {
2878 my ($command) = @_;
2879
2880 doprint "$command ... ";
2881
2882 my $output = `$command 2>&1`;
2883 my $ret = $?;
2884
2885 logit $output;
2886
2887 if ($ret) {
2888 doprint "FAILED\n";
2889 dodie "Failed to git bisect";
2890 }
2891
2892 doprint "SUCCESS\n";
2893 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2894 doprint "$1 [$2]\n";
2895 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2896 $bisect_bad_commit = $1;
2897 doprint "Found bad commit... $1\n";
2898 return 0;
2899 } else {
2900 # we already logged it, just print it now.
2901 print $output;
2902 }
2903
2904 return 1;
2905}
2906
2907sub bisect_reboot {
2908 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2909 reboot_to_good $bisect_sleep_time;
2910}
2911
2912# returns 1 on success, 0 on failure, -1 on skip
2913sub run_bisect_test {
2914 my ($type, $buildtype) = @_;
2915
2916 my $failed = 0;
2917 my $result;
2918 my $output;
2919 my $ret;
2920
2921 $in_bisect = 1;
2922
2923 build $buildtype or $failed = 1;
2924
2925 if ($type ne "build") {
2926 if ($failed && $bisect_skip) {
2927 $in_bisect = 0;
2928 return -1;
2929 }
2930 dodie "Failed on build" if $failed;
2931
2932 # Now boot the box
2933 start_monitor_and_install or $failed = 1;
2934
2935 if ($type ne "boot") {
2936 if ($failed && $bisect_skip) {
2937 end_monitor;
2938 bisect_reboot;
2939 $in_bisect = 0;
2940 return -1;
2941 }
2942 dodie "Failed on boot" if $failed;
2943
2944 do_run_test or $failed = 1;
2945 }
2946 end_monitor;
2947 }
2948
2949 if ($failed) {
2950 $result = 0;
2951 } else {
2952 $result = 1;
2953 }
2954
2955 # reboot the box to a kernel we can ssh to
2956 if ($type ne "build") {
2957 bisect_reboot;
2958 }
2959 $in_bisect = 0;
2960
2961 return $result;
2962}
2963
2964sub run_bisect {
2965 my ($type) = @_;
2966 my $buildtype = "oldconfig";
2967
2968 # We should have a minconfig to use?
2969 if (defined($minconfig)) {
2970 $buildtype = "useconfig:$minconfig";
2971 }
2972
2973 # If the user sets bisect_tries to less than 1, then no tries
2974 # is a success.
2975 my $ret = 1;
2976
2977 # Still let the user manually decide that though.
2978 if ($bisect_tries < 1 && $bisect_manual) {
2979 $ret = answer_bisect;
2980 }
2981
2982 for (my $i = 0; $i < $bisect_tries; $i++) {
2983 if ($bisect_tries > 1) {
2984 my $t = $i + 1;
2985 doprint("Running bisect trial $t of $bisect_tries:\n");
2986 }
2987 $ret = run_bisect_test $type, $buildtype;
2988
2989 if ($bisect_manual) {
2990 $ret = answer_bisect;
2991 }
2992
2993 last if (!$ret);
2994 }
2995
2996 # Are we looking for where it worked, not failed?
2997 if ($reverse_bisect && $ret >= 0) {
2998 $ret = !$ret;
2999 }
3000
3001 if ($ret > 0) {
3002 return "good";
3003 } elsif ($ret == 0) {
3004 return "bad";
3005 } elsif ($bisect_skip) {
3006 doprint "HIT A BAD COMMIT ... SKIPPING\n";
3007 return "skip";
3008 }
3009}
3010
3011sub update_bisect_replay {
3012 my $tmp_log = "$tmpdir/ktest_bisect_log";
3013 run_command "git bisect log > $tmp_log" or
3014 dodie "can't create bisect log";
3015 return $tmp_log;
3016}
3017
3018sub bisect {
3019 my ($i) = @_;
3020
3021 my $result;
3022
3023 dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
3024 dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
3025 dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
3026
3027 my $good = $bisect_good;
3028 my $bad = $bisect_bad;
3029 my $type = $bisect_type;
3030 my $start = $bisect_start;
3031 my $replay = $bisect_replay;
3032 my $start_files = $bisect_files;
3033
3034 if (defined($start_files)) {
3035 $start_files = " -- " . $start_files;
3036 } else {
3037 $start_files = "";
3038 }
3039
3040 # convert to true sha1's
3041 $good = get_sha1($good);
3042 $bad = get_sha1($bad);
3043
3044 if (defined($bisect_reverse) && $bisect_reverse == 1) {
3045 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
3046 $reverse_bisect = 1;
3047 } else {
3048 $reverse_bisect = 0;
3049 }
3050
3051 # Can't have a test without having a test to run
3052 if ($type eq "test" && !defined($run_test)) {
3053 $type = "boot";
3054 }
3055
3056 # Check if a bisect was running
3057 my $bisect_start_file = "$builddir/.git/BISECT_START";
3058
3059 my $check = $bisect_check;
3060 my $do_check = defined($check) && $check ne "0";
3061
3062 if ( -f $bisect_start_file ) {
3063 print "Bisect in progress found\n";
3064 if ($do_check) {
3065 print " If you say yes, then no checks of good or bad will be done\n";
3066 }
3067 if (defined($replay)) {
3068 print "** BISECT_REPLAY is defined in config file **";
3069 print " Ignore config option and perform new git bisect log?\n";
3070 if (read_ync " (yes, no, or cancel) ") {
3071 $replay = update_bisect_replay;
3072 $do_check = 0;
3073 }
3074 } elsif (read_yn "read git log and continue?") {
3075 $replay = update_bisect_replay;
3076 $do_check = 0;
3077 }
3078 }
3079
3080 if ($do_check) {
3081 # get current HEAD
3082 my $head = get_sha1("HEAD");
3083
3084 if ($check ne "good") {
3085 doprint "TESTING BISECT BAD [$bad]\n";
3086 run_command "git checkout $bad" or
3087 dodie "Failed to checkout $bad";
3088
3089 $result = run_bisect $type;
3090
3091 if ($result ne "bad") {
3092 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
3093 }
3094 }
3095
3096 if ($check ne "bad") {
3097 doprint "TESTING BISECT GOOD [$good]\n";
3098 run_command "git checkout $good" or
3099 dodie "Failed to checkout $good";
3100
3101 $result = run_bisect $type;
3102
3103 if ($result ne "good") {
3104 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
3105 }
3106 }
3107
3108 # checkout where we started
3109 run_command "git checkout $head" or
3110 dodie "Failed to checkout $head";
3111 }
3112
3113 run_command "git bisect start$start_files" or
3114 dodie "could not start bisect";
3115
3116 if (defined($replay)) {
3117 run_command "git bisect replay $replay" or
3118 dodie "failed to run replay";
3119 } else {
3120 run_command "git bisect good $good" or
3121 dodie "could not set bisect good to $good";
3122
3123 run_git_bisect "git bisect bad $bad" or
3124 dodie "could not set bisect bad to $bad";
3125 }
3126
3127 if (defined($start)) {
3128 run_command "git checkout $start" or
3129 dodie "failed to checkout $start";
3130 }
3131
3132 my $test;
3133 do {
3134 $result = run_bisect $type;
3135 $test = run_git_bisect "git bisect $result";
3136 print_times;
3137 } while ($test);
3138
3139 run_command "git bisect log" or
3140 dodie "could not capture git bisect log";
3141
3142 run_command "git bisect reset" or
3143 dodie "could not reset git bisect";
3144
3145 doprint "Bad commit was [$bisect_bad_commit]\n";
3146
3147 success $i;
3148}
3149
3150sub assign_configs {
3151 my ($hash, $config) = @_;
3152
3153 doprint "Reading configs from $config\n";
3154
3155 open (IN, $config) or
3156 dodie "Failed to read $config";
3157
3158 while (<IN>) {
3159 chomp;
3160 if (/^((CONFIG\S*)=.*)/) {
3161 ${$hash}{$2} = $1;
3162 } elsif (/^(# (CONFIG\S*) is not set)/) {
3163 ${$hash}{$2} = $1;
3164 }
3165 }
3166
3167 close(IN);
3168}
3169
3170sub process_config_ignore {
3171 my ($config) = @_;
3172
3173 assign_configs \%config_ignore, $config;
3174}
3175
3176sub get_dependencies {
3177 my ($config) = @_;
3178
3179 my $arr = $dependency{$config};
3180 if (!defined($arr)) {
3181 return ();
3182 }
3183
3184 my @deps = @{$arr};
3185
3186 foreach my $dep (@{$arr}) {
3187 print "ADD DEP $dep\n";
3188 @deps = (@deps, get_dependencies $dep);
3189 }
3190
3191 return @deps;
3192}
3193
3194sub save_config {
3195 my ($pc, $file) = @_;
3196
3197 my %configs = %{$pc};
3198
3199 doprint "Saving configs into $file\n";
3200
3201 open(OUT, ">$file") or dodie "Can not write to $file";
3202
3203 foreach my $config (keys %configs) {
3204 print OUT "$configs{$config}\n";
3205 }
3206 close(OUT);
3207}
3208
3209sub create_config {
3210 my ($name, $pc) = @_;
3211
3212 doprint "Creating old config from $name configs\n";
3213
3214 save_config $pc, $output_config;
3215
3216 make_oldconfig;
3217}
3218
3219sub run_config_bisect_test {
3220 my ($type) = @_;
3221
3222 my $ret = run_bisect_test $type, "oldconfig";
3223
3224 if ($bisect_manual) {
3225 $ret = answer_bisect;
3226 }
3227
3228 return $ret;
3229}
3230
3231sub config_bisect_end {
3232 my ($good, $bad) = @_;
3233 my $diffexec = "diff -u";
3234
3235 if (-f "$builddir/scripts/diffconfig") {
3236 $diffexec = "$builddir/scripts/diffconfig";
3237 }
3238 doprint "\n\n***************************************\n";
3239 doprint "No more config bisecting possible.\n";
3240 run_command "$diffexec $good $bad", 1;
3241 doprint "***************************************\n\n";
3242}
3243
3244sub run_config_bisect {
3245 my ($good, $bad, $last_result) = @_;
3246 my $reset = "";
3247 my $cmd;
3248 my $ret;
3249
3250 if (!length($last_result)) {
3251 $reset = "-r";
3252 }
3253 run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
3254
3255 # config-bisect returns:
3256 # 0 if there is more to bisect
3257 # 1 for finding a good config
3258 # 2 if it can not find any more configs
3259 # -1 (255) on error
3260 if ($run_command_status) {
3261 return $run_command_status;
3262 }
3263
3264 $ret = run_config_bisect_test $config_bisect_type;
3265 if ($ret) {
3266 doprint "NEW GOOD CONFIG ($pass)\n";
3267 system("cp $output_config $tmpdir/good_config.tmp.$pass");
3268 $pass++;
3269 # Return 3 for good config
3270 return 3;
3271 } else {
3272 doprint "NEW BAD CONFIG ($pass)\n";
3273 system("cp $output_config $tmpdir/bad_config.tmp.$pass");
3274 $pass++;
3275 # Return 4 for bad config
3276 return 4;
3277 }
3278}
3279
3280sub config_bisect {
3281 my ($i) = @_;
3282
3283 my $good_config;
3284 my $bad_config;
3285
3286 my $type = $config_bisect_type;
3287 my $ret;
3288
3289 $bad_config = $config_bisect;
3290
3291 if (defined($config_bisect_good)) {
3292 $good_config = $config_bisect_good;
3293 } elsif (defined($minconfig)) {
3294 $good_config = $minconfig;
3295 } else {
3296 doprint "No config specified, checking if defconfig works";
3297 $ret = run_bisect_test $type, "defconfig";
3298 if (!$ret) {
3299 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3300 return 1;
3301 }
3302 $good_config = $output_config;
3303 }
3304
3305 if (!defined($config_bisect_exec)) {
3306 # First check the location that ktest.pl ran
3307 my @locations = (
3308 "$pwd/config-bisect.pl",
3309 "$dirname/config-bisect.pl",
3310 "$builddir/tools/testing/ktest/config-bisect.pl",
3311 undef );
3312 foreach my $loc (@locations) {
3313 doprint "loc = $loc\n";
3314 $config_bisect_exec = $loc;
3315 last if (defined($config_bisect_exec && -x $config_bisect_exec));
3316 }
3317 if (!defined($config_bisect_exec)) {
3318 fail "Could not find an executable config-bisect.pl\n",
3319 " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
3320 return 1;
3321 }
3322 }
3323
3324 # we don't want min configs to cause issues here.
3325 doprint "Disabling 'MIN_CONFIG' for this test\n";
3326 undef $minconfig;
3327
3328 my %good_configs;
3329 my %bad_configs;
3330 my %tmp_configs;
3331
3332 if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
3333 if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
3334 if (-f "$tmpdir/good_config.tmp") {
3335 $good_config = "$tmpdir/good_config.tmp";
3336 } else {
3337 $good_config = "$tmpdir/good_config";
3338 }
3339 if (-f "$tmpdir/bad_config.tmp") {
3340 $bad_config = "$tmpdir/bad_config.tmp";
3341 } else {
3342 $bad_config = "$tmpdir/bad_config";
3343 }
3344 }
3345 }
3346 doprint "Run good configs through make oldconfig\n";
3347 assign_configs \%tmp_configs, $good_config;
3348 create_config "$good_config", \%tmp_configs;
3349 $good_config = "$tmpdir/good_config";
3350 system("cp $output_config $good_config") == 0 or dodie "cp good config";
3351
3352 doprint "Run bad configs through make oldconfig\n";
3353 assign_configs \%tmp_configs, $bad_config;
3354 create_config "$bad_config", \%tmp_configs;
3355 $bad_config = "$tmpdir/bad_config";
3356 system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
3357
3358 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3359 if ($config_bisect_check ne "good") {
3360 doprint "Testing bad config\n";
3361
3362 $ret = run_bisect_test $type, "useconfig:$bad_config";
3363 if ($ret) {
3364 fail "Bad config succeeded when expected to fail!";
3365 return 0;
3366 }
3367 }
3368 if ($config_bisect_check ne "bad") {
3369 doprint "Testing good config\n";
3370
3371 $ret = run_bisect_test $type, "useconfig:$good_config";
3372 if (!$ret) {
3373 fail "Good config failed when expected to succeed!";
3374 return 0;
3375 }
3376 }
3377 }
3378
3379 my $last_run = "";
3380
3381 do {
3382 $ret = run_config_bisect $good_config, $bad_config, $last_run;
3383 if ($ret == 3) {
3384 $last_run = "good";
3385 } elsif ($ret == 4) {
3386 $last_run = "bad";
3387 }
3388 print_times;
3389 } while ($ret == 3 || $ret == 4);
3390
3391 if ($ret == 2) {
3392 config_bisect_end "$good_config.tmp", "$bad_config.tmp";
3393 }
3394
3395 return $ret if ($ret < 0);
3396
3397 success $i;
3398}
3399
3400sub patchcheck_reboot {
3401 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3402 reboot_to_good $patchcheck_sleep_time;
3403}
3404
3405sub patchcheck {
3406 my ($i) = @_;
3407
3408 dodie "PATCHCHECK_START[$i] not defined\n"
3409 if (!defined($patchcheck_start));
3410 dodie "PATCHCHECK_TYPE[$i] not defined\n"
3411 if (!defined($patchcheck_type));
3412
3413 my $start = $patchcheck_start;
3414
3415 my $cherry = $patchcheck_cherry;
3416 if (!defined($cherry)) {
3417 $cherry = 0;
3418 }
3419
3420 my $end = "HEAD";
3421 if (defined($patchcheck_end)) {
3422 $end = $patchcheck_end;
3423 } elsif ($cherry) {
3424 dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3425 }
3426
3427 # Get the true sha1's since we can use things like HEAD~3
3428 $start = get_sha1($start);
3429 $end = get_sha1($end);
3430
3431 my $type = $patchcheck_type;
3432
3433 # Can't have a test without having a test to run
3434 if ($type eq "test" && !defined($run_test)) {
3435 $type = "boot";
3436 }
3437
3438 if ($cherry) {
3439 open (IN, "git cherry -v $start $end|") or
3440 dodie "could not get git list";
3441 } else {
3442 open (IN, "git log --pretty=oneline $end|") or
3443 dodie "could not get git list";
3444 }
3445
3446 my @list;
3447
3448 while (<IN>) {
3449 chomp;
3450 # git cherry adds a '+' we want to remove
3451 s/^\+ //;
3452 $list[$#list+1] = $_;
3453 last if (/^$start/);
3454 }
3455 close(IN);
3456
3457 if (!$cherry) {
3458 if ($list[$#list] !~ /^$start/) {
3459 fail "SHA1 $start not found";
3460 }
3461
3462 # go backwards in the list
3463 @list = reverse @list;
3464 }
3465
3466 doprint("Going to test the following commits:\n");
3467 foreach my $l (@list) {
3468 doprint "$l\n";
3469 }
3470
3471 my $save_clean = $noclean;
3472 my %ignored_warnings;
3473
3474 if (defined($ignore_warnings)) {
3475 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3476 $ignored_warnings{$sha1} = 1;
3477 }
3478 }
3479
3480 $in_patchcheck = 1;
3481 foreach my $item (@list) {
3482 my $sha1 = $item;
3483 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3484
3485 doprint "\nProcessing commit \"$item\"\n\n";
3486
3487 run_command "git checkout $sha1" or
3488 dodie "Failed to checkout $sha1";
3489
3490 # only clean on the first and last patch
3491 if ($item eq $list[0] ||
3492 $item eq $list[$#list]) {
3493 $noclean = $save_clean;
3494 } else {
3495 $noclean = 1;
3496 }
3497
3498 if (defined($minconfig)) {
3499 build "useconfig:$minconfig" or return 0;
3500 } else {
3501 # ?? no config to use?
3502 build "oldconfig" or return 0;
3503 }
3504
3505 # No need to do per patch checking if warnings file exists
3506 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3507 check_patch_buildlog $sha1 or return 0;
3508 }
3509
3510 check_buildlog or return 0;
3511
3512 next if ($type eq "build");
3513
3514 my $failed = 0;
3515
3516 start_monitor_and_install or $failed = 1;
3517
3518 if (!$failed && $type ne "boot"){
3519 do_run_test or $failed = 1;
3520 }
3521 end_monitor;
3522 if ($failed) {
3523 print_times;
3524 return 0;
3525 }
3526 patchcheck_reboot;
3527 print_times;
3528 }
3529 $in_patchcheck = 0;
3530 success $i;
3531
3532 return 1;
3533}
3534
3535sub add_dep {
3536 # $config depends on $dep
3537 my ($config, $dep) = @_;
3538
3539 if (defined($depends{$config})) {
3540 $depends{$config} .= " " . $dep;
3541 } else {
3542 $depends{$config} = $dep;
3543 }
3544
3545 # record the number of configs depending on $dep
3546 if (defined $depcount{$dep}) {
3547 $depcount{$dep}++;
3548 } else {
3549 $depcount{$dep} = 1;
3550 }
3551}
3552
3553# taken from streamline_config.pl
3554sub read_kconfig {
3555 my ($kconfig) = @_;
3556
3557 my $state = "NONE";
3558 my $config;
3559 my @kconfigs;
3560
3561 my $cont = 0;
3562 my $line;
3563
3564 if (! -f $kconfig) {
3565 doprint "file $kconfig does not exist, skipping\n";
3566 return;
3567 }
3568
3569 open(KIN, "$kconfig")
3570 or dodie "Can't open $kconfig";
3571 while (<KIN>) {
3572 chomp;
3573
3574 # Make sure that lines ending with \ continue
3575 if ($cont) {
3576 $_ = $line . " " . $_;
3577 }
3578
3579 if (s/\\$//) {
3580 $cont = 1;
3581 $line = $_;
3582 next;
3583 }
3584
3585 $cont = 0;
3586
3587 # collect any Kconfig sources
3588 if (/^source\s*"(.*)"/) {
3589 $kconfigs[$#kconfigs+1] = $1;
3590 }
3591
3592 # configs found
3593 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3594 $state = "NEW";
3595 $config = $2;
3596
3597 for (my $i = 0; $i < $iflevel; $i++) {
3598 add_dep $config, $ifdeps[$i];
3599 }
3600
3601 # collect the depends for the config
3602 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3603
3604 add_dep $config, $1;
3605
3606 # Get the configs that select this config
3607 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3608
3609 # selected by depends on config
3610 add_dep $1, $config;
3611
3612 # Check for if statements
3613 } elsif (/^if\s+(.*\S)\s*$/) {
3614 my $deps = $1;
3615 # remove beginning and ending non text
3616 $deps =~ s/^[^a-zA-Z0-9_]*//;
3617 $deps =~ s/[^a-zA-Z0-9_]*$//;
3618
3619 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3620
3621 $ifdeps[$iflevel++] = join ':', @deps;
3622
3623 } elsif (/^endif/) {
3624
3625 $iflevel-- if ($iflevel);
3626
3627 # stop on "help"
3628 } elsif (/^\s*help\s*$/) {
3629 $state = "NONE";
3630 }
3631 }
3632 close(KIN);
3633
3634 # read in any configs that were found.
3635 foreach $kconfig (@kconfigs) {
3636 if (!defined($read_kconfigs{$kconfig})) {
3637 $read_kconfigs{$kconfig} = 1;
3638 read_kconfig("$builddir/$kconfig");
3639 }
3640 }
3641}
3642
3643sub read_depends {
3644 # find out which arch this is by the kconfig file
3645 open (IN, $output_config) or
3646 dodie "Failed to read $output_config";
3647 my $arch;
3648 while (<IN>) {
3649 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3650 $arch = $1;
3651 last;
3652 }
3653 }
3654 close IN;
3655
3656 if (!defined($arch)) {
3657 doprint "Could not find arch from config file\n";
3658 doprint "no dependencies used\n";
3659 return;
3660 }
3661
3662 # arch is really the subarch, we need to know
3663 # what directory to look at.
3664 if ($arch eq "i386" || $arch eq "x86_64") {
3665 $arch = "x86";
3666 }
3667
3668 my $kconfig = "$builddir/arch/$arch/Kconfig";
3669
3670 if (! -f $kconfig && $arch =~ /\d$/) {
3671 my $orig = $arch;
3672 # some subarchs have numbers, truncate them
3673 $arch =~ s/\d*$//;
3674 $kconfig = "$builddir/arch/$arch/Kconfig";
3675 if (! -f $kconfig) {
3676 doprint "No idea what arch dir $orig is for\n";
3677 doprint "no dependencies used\n";
3678 return;
3679 }
3680 }
3681
3682 read_kconfig($kconfig);
3683}
3684
3685sub make_new_config {
3686 my @configs = @_;
3687
3688 open (OUT, ">$output_config")
3689 or dodie "Failed to write $output_config";
3690
3691 foreach my $config (@configs) {
3692 print OUT "$config\n";
3693 }
3694 close OUT;
3695}
3696
3697sub chomp_config {
3698 my ($config) = @_;
3699
3700 $config =~ s/CONFIG_//;
3701
3702 return $config;
3703}
3704
3705sub get_depends {
3706 my ($dep) = @_;
3707
3708 my $kconfig = chomp_config $dep;
3709
3710 $dep = $depends{"$kconfig"};
3711
3712 # the dep string we have saves the dependencies as they
3713 # were found, including expressions like ! && ||. We
3714 # want to split this out into just an array of configs.
3715
3716 my $valid = "A-Za-z_0-9";
3717
3718 my @configs;
3719
3720 while ($dep =~ /[$valid]/) {
3721 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3722 my $conf = "CONFIG_" . $1;
3723
3724 $configs[$#configs + 1] = $conf;
3725
3726 $dep =~ s/^[^$valid]*[$valid]+//;
3727 } else {
3728 dodie "this should never happen";
3729 }
3730 }
3731
3732 return @configs;
3733}
3734
3735sub test_this_config {
3736 my ($config) = @_;
3737
3738 my $found;
3739
3740 # if we already processed this config, skip it
3741 if (defined($processed_configs{$config})) {
3742 return undef;
3743 }
3744 $processed_configs{$config} = 1;
3745
3746 # if this config failed during this round, skip it
3747 if (defined($nochange_config{$config})) {
3748 return undef;
3749 }
3750
3751 my $kconfig = chomp_config $config;
3752
3753 # Test dependencies first
3754 if (defined($depends{"$kconfig"})) {
3755 my @parents = get_depends $config;
3756 foreach my $parent (@parents) {
3757 # if the parent is in the min config, check it first
3758 next if (!defined($min_configs{$parent}));
3759 $found = test_this_config($parent);
3760 if (defined($found)) {
3761 return $found;
3762 }
3763 }
3764 }
3765
3766 # Remove this config from the list of configs
3767 # do a make olddefconfig and then read the resulting
3768 # .config to make sure it is missing the config that
3769 # we had before
3770 my %configs = %min_configs;
3771 delete $configs{$config};
3772 make_new_config ((values %configs), (values %keep_configs));
3773 make_oldconfig;
3774 undef %configs;
3775 assign_configs \%configs, $output_config;
3776
3777 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3778 return $config;
3779 }
3780
3781 doprint "disabling config $config did not change .config\n";
3782
3783 $nochange_config{$config} = 1;
3784
3785 return undef;
3786}
3787
3788sub make_min_config {
3789 my ($i) = @_;
3790
3791 my $type = $minconfig_type;
3792 if ($type ne "boot" && $type ne "test") {
3793 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3794 " make_min_config works only with 'boot' and 'test'\n" and return;
3795 }
3796
3797 if (!defined($output_minconfig)) {
3798 fail "OUTPUT_MIN_CONFIG not defined" and return;
3799 }
3800
3801 # If output_minconfig exists, and the start_minconfig
3802 # came from min_config, than ask if we should use
3803 # that instead.
3804 if (-f $output_minconfig && !$start_minconfig_defined) {
3805 print "$output_minconfig exists\n";
3806 if (!defined($use_output_minconfig)) {
3807 if (read_yn " Use it as minconfig?") {
3808 $start_minconfig = $output_minconfig;
3809 }
3810 } elsif ($use_output_minconfig > 0) {
3811 doprint "Using $output_minconfig as MIN_CONFIG\n";
3812 $start_minconfig = $output_minconfig;
3813 } else {
3814 doprint "Set to still use MIN_CONFIG as starting point\n";
3815 }
3816 }
3817
3818 if (!defined($start_minconfig)) {
3819 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3820 }
3821
3822 my $temp_config = "$tmpdir/temp_config";
3823
3824 # First things first. We build an allnoconfig to find
3825 # out what the defaults are that we can't touch.
3826 # Some are selections, but we really can't handle selections.
3827
3828 my $save_minconfig = $minconfig;
3829 undef $minconfig;
3830
3831 run_command "$make allnoconfig" or return 0;
3832
3833 read_depends;
3834
3835 process_config_ignore $output_config;
3836
3837 undef %save_configs;
3838 undef %min_configs;
3839
3840 if (defined($ignore_config)) {
3841 # make sure the file exists
3842 `touch $ignore_config`;
3843 assign_configs \%save_configs, $ignore_config;
3844 }
3845
3846 %keep_configs = %save_configs;
3847
3848 doprint "Load initial configs from $start_minconfig\n";
3849
3850 # Look at the current min configs, and save off all the
3851 # ones that were set via the allnoconfig
3852 assign_configs \%min_configs, $start_minconfig;
3853
3854 my @config_keys = keys %min_configs;
3855
3856 # All configs need a depcount
3857 foreach my $config (@config_keys) {
3858 my $kconfig = chomp_config $config;
3859 if (!defined $depcount{$kconfig}) {
3860 $depcount{$kconfig} = 0;
3861 }
3862 }
3863
3864 # Remove anything that was set by the make allnoconfig
3865 # we shouldn't need them as they get set for us anyway.
3866 foreach my $config (@config_keys) {
3867 # Remove anything in the ignore_config
3868 if (defined($keep_configs{$config})) {
3869 my $file = $ignore_config;
3870 $file =~ s,.*/(.*?)$,$1,;
3871 doprint "$config set by $file ... ignored\n";
3872 delete $min_configs{$config};
3873 next;
3874 }
3875 # But make sure the settings are the same. If a min config
3876 # sets a selection, we do not want to get rid of it if
3877 # it is not the same as what we have. Just move it into
3878 # the keep configs.
3879 if (defined($config_ignore{$config})) {
3880 if ($config_ignore{$config} ne $min_configs{$config}) {
3881 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3882 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3883 $keep_configs{$config} = $min_configs{$config};
3884 } else {
3885 doprint "$config set by allnoconfig ... ignored\n";
3886 }
3887 delete $min_configs{$config};
3888 }
3889 }
3890
3891 my $done = 0;
3892 my $take_two = 0;
3893
3894 while (!$done) {
3895 my $config;
3896 my $found;
3897
3898 # Now disable each config one by one and do a make oldconfig
3899 # till we find a config that changes our list.
3900
3901 my @test_configs = keys %min_configs;
3902
3903 # Sort keys by who is most dependent on
3904 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3905 @test_configs ;
3906
3907 # Put configs that did not modify the config at the end.
3908 my $reset = 1;
3909 for (my $i = 0; $i < $#test_configs; $i++) {
3910 if (!defined($nochange_config{$test_configs[0]})) {
3911 $reset = 0;
3912 last;
3913 }
3914 # This config didn't change the .config last time.
3915 # Place it at the end
3916 my $config = shift @test_configs;
3917 push @test_configs, $config;
3918 }
3919
3920 # if every test config has failed to modify the .config file
3921 # in the past, then reset and start over.
3922 if ($reset) {
3923 undef %nochange_config;
3924 }
3925
3926 undef %processed_configs;
3927
3928 foreach my $config (@test_configs) {
3929
3930 $found = test_this_config $config;
3931
3932 last if (defined($found));
3933
3934 # oh well, try another config
3935 }
3936
3937 if (!defined($found)) {
3938 # we could have failed due to the nochange_config hash
3939 # reset and try again
3940 if (!$take_two) {
3941 undef %nochange_config;
3942 $take_two = 1;
3943 next;
3944 }
3945 doprint "No more configs found that we can disable\n";
3946 $done = 1;
3947 last;
3948 }
3949 $take_two = 0;
3950
3951 $config = $found;
3952
3953 doprint "Test with $config disabled\n";
3954
3955 # set in_bisect to keep build and monitor from dieing
3956 $in_bisect = 1;
3957
3958 my $failed = 0;
3959 build "oldconfig" or $failed = 1;
3960 if (!$failed) {
3961 start_monitor_and_install or $failed = 1;
3962
3963 if ($type eq "test" && !$failed) {
3964 do_run_test or $failed = 1;
3965 }
3966
3967 end_monitor;
3968 }
3969
3970 $in_bisect = 0;
3971
3972 if ($failed) {
3973 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3974 # this config is needed, add it to the ignore list.
3975 $keep_configs{$config} = $min_configs{$config};
3976 $save_configs{$config} = $min_configs{$config};
3977 delete $min_configs{$config};
3978
3979 # update new ignore configs
3980 if (defined($ignore_config)) {
3981 open (OUT, ">$temp_config") or
3982 dodie "Can't write to $temp_config";
3983 foreach my $config (keys %save_configs) {
3984 print OUT "$save_configs{$config}\n";
3985 }
3986 close OUT;
3987 run_command "mv $temp_config $ignore_config" or
3988 dodie "failed to copy update to $ignore_config";
3989 }
3990
3991 } else {
3992 # We booted without this config, remove it from the minconfigs.
3993 doprint "$config is not needed, disabling\n";
3994
3995 delete $min_configs{$config};
3996
3997 # Also disable anything that is not enabled in this config
3998 my %configs;
3999 assign_configs \%configs, $output_config;
4000 my @config_keys = keys %min_configs;
4001 foreach my $config (@config_keys) {
4002 if (!defined($configs{$config})) {
4003 doprint "$config is not set, disabling\n";
4004 delete $min_configs{$config};
4005 }
4006 }
4007
4008 # Save off all the current mandatory configs
4009 open (OUT, ">$temp_config") or
4010 dodie "Can't write to $temp_config";
4011 foreach my $config (keys %keep_configs) {
4012 print OUT "$keep_configs{$config}\n";
4013 }
4014 foreach my $config (keys %min_configs) {
4015 print OUT "$min_configs{$config}\n";
4016 }
4017 close OUT;
4018
4019 run_command "mv $temp_config $output_minconfig" or
4020 dodie "failed to copy update to $output_minconfig";
4021 }
4022
4023 doprint "Reboot and wait $sleep_time seconds\n";
4024 reboot_to_good $sleep_time;
4025 }
4026
4027 success $i;
4028 return 1;
4029}
4030
4031sub make_warnings_file {
4032 my ($i) = @_;
4033
4034 if (!defined($warnings_file)) {
4035 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4036 }
4037
4038 if ($build_type eq "nobuild") {
4039 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4040 }
4041
4042 build $build_type or dodie "Failed to build";
4043
4044 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4045
4046 open(IN, $buildlog) or dodie "Can't open $buildlog";
4047 while (<IN>) {
4048 # Some compilers use UTF-8 extended for quotes
4049 # for distcc heterogeneous systems, this causes issues
4050 s/$utf8_quote/'/g;
4051
4052 if (/$check_build_re/) {
4053 print OUT;
4054 }
4055 }
4056 close(IN);
4057
4058 close(OUT);
4059
4060 success $i;
4061}
4062
4063sub option_defined {
4064 my ($option) = @_;
4065
4066 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4067 return 1;
4068 }
4069
4070 return 0;
4071}
4072
4073sub __set_test_option {
4074 my ($name, $i) = @_;
4075
4076 my $option = "$name\[$i\]";
4077
4078 if (option_defined($option)) {
4079 return $opt{$option};
4080 }
4081
4082 foreach my $test (keys %repeat_tests) {
4083 if ($i >= $test &&
4084 $i < $test + $repeat_tests{$test}) {
4085 $option = "$name\[$test\]";
4086 if (option_defined($option)) {
4087 return $opt{$option};
4088 }
4089 }
4090 }
4091
4092 if (option_defined($name)) {
4093 return $opt{$name};
4094 }
4095
4096 return undef;
4097}
4098
4099sub set_test_option {
4100 my ($name, $i) = @_;
4101
4102 my $option = __set_test_option($name, $i);
4103 return $option if (!defined($option));
4104
4105 return eval_option($name, $option, $i);
4106}
4107
4108sub find_mailer {
4109 my ($mailer) = @_;
4110
4111 my @paths = split /:/, $ENV{PATH};
4112
4113 # sendmail is usually in /usr/sbin
4114 $paths[$#paths + 1] = "/usr/sbin";
4115
4116 foreach my $path (@paths) {
4117 if (-x "$path/$mailer") {
4118 return $path;
4119 }
4120 }
4121
4122 return undef;
4123}
4124
4125sub do_send_mail {
4126 my ($subject, $message, $file) = @_;
4127
4128 if (!defined($mail_path)) {
4129 # find the mailer
4130 $mail_path = find_mailer $mailer;
4131 if (!defined($mail_path)) {
4132 die "\nCan not find $mailer in PATH\n";
4133 }
4134 }
4135
4136 my $header_file = "$tmpdir/header";
4137 open (HEAD, ">$header_file") or die "Can not create $header_file\n";
4138 print HEAD "To: $mailto\n";
4139 print HEAD "Subject: $subject\n\n";
4140 print HEAD "$message\n";
4141 close HEAD;
4142
4143 if (!defined($mail_command)) {
4144 if ($mailer eq "mail" || $mailer eq "mailx") {
4145 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO";
4146 } elsif ($mailer eq "sendmail" ) {
4147 $mail_command = "cat \$HEADER_FILE \$BODY_FILE | \$MAIL_PATH/\$MAILER -t \$MAILTO";
4148 } else {
4149 die "\nYour mailer: $mailer is not supported.\n";
4150 }
4151 }
4152
4153 if (defined($file)) {
4154 $mail_command =~ s/\$BODY_FILE/$file/g;
4155 } else {
4156 $mail_command =~ s/\$BODY_FILE//g;
4157 }
4158
4159 $mail_command =~ s/\$HEADER_FILE/$header_file/g;
4160 $mail_command =~ s/\$MAILER/$mailer/g;
4161 $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
4162 $mail_command =~ s/\$MAILTO/$mailto/g;
4163 $mail_command =~ s/\$SUBJECT/$subject/g;
4164 $mail_command =~ s/\$MESSAGE/$message/g;
4165
4166 my $ret = run_command $mail_command;
4167 if (!$ret && defined($file)) {
4168 # try again without the file
4169 $message .= "\n\n*** FAILED TO SEND LOG ***\n\n";
4170 do_send_email($subject, $message);
4171 }
4172}
4173
4174sub send_email {
4175 if (defined($mailto)) {
4176 if (!defined($mailer)) {
4177 doprint "No email sent: email or mailer not specified in config.\n";
4178 return;
4179 }
4180 do_send_mail @_;
4181 }
4182}
4183
4184sub cancel_test {
4185 if ($email_when_canceled) {
4186 my $name = get_test_name;
4187 send_email("KTEST: Your [$name] test was cancelled",
4188 "Your test started at $script_start_time was cancelled: sig int");
4189 }
4190 die "\nCaught Sig Int, test interrupted: $!\n"
4191}
4192
4193$#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4194
4195if ($#ARGV == 0) {
4196 $ktest_config = $ARGV[0];
4197 if (! -f $ktest_config) {
4198 print "$ktest_config does not exist.\n";
4199 if (!read_yn "Create it?") {
4200 exit 0;
4201 }
4202 }
4203}
4204
4205if (! -f $ktest_config) {
4206 $newconfig = 1;
4207 get_test_case;
4208 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4209 print OUT << "EOF"
4210# Generated by ktest.pl
4211#
4212
4213# PWD is a ktest.pl variable that will result in the process working
4214# directory that ktest.pl is executed in.
4215
4216# THIS_DIR is automatically assigned the PWD of the path that generated
4217# the config file. It is best to use this variable when assigning other
4218# directory paths within this directory. This allows you to easily
4219# move the test cases to other locations or to other machines.
4220#
4221THIS_DIR := $variable{"PWD"}
4222
4223# Define each test with TEST_START
4224# The config options below it will override the defaults
4225TEST_START
4226TEST_TYPE = $default{"TEST_TYPE"}
4227
4228DEFAULTS
4229EOF
4230;
4231 close(OUT);
4232}
4233read_config $ktest_config;
4234
4235if (defined($opt{"LOG_FILE"})) {
4236 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4237}
4238
4239# Append any configs entered in manually to the config file.
4240my @new_configs = keys %entered_configs;
4241if ($#new_configs >= 0) {
4242 print "\nAppending entered in configs to $ktest_config\n";
4243 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4244 foreach my $config (@new_configs) {
4245 print OUT "$config = $entered_configs{$config}\n";
4246 $opt{$config} = process_variables($entered_configs{$config});
4247 }
4248}
4249
4250if (defined($opt{"LOG_FILE"})) {
4251 if ($opt{"CLEAR_LOG"}) {
4252 unlink $opt{"LOG_FILE"};
4253 }
4254 open(LOG, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
4255 LOG->autoflush(1);
4256}
4257
4258doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4259
4260for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4261
4262 if (!$i) {
4263 doprint "DEFAULT OPTIONS:\n";
4264 } else {
4265 doprint "\nTEST $i OPTIONS";
4266 if (defined($repeat_tests{$i})) {
4267 $repeat = $repeat_tests{$i};
4268 doprint " ITERATE $repeat";
4269 }
4270 doprint "\n";
4271 }
4272
4273 foreach my $option (sort keys %opt) {
4274 if ($option =~ /\[(\d+)\]$/) {
4275 next if ($i != $1);
4276 } else {
4277 next if ($i);
4278 }
4279
4280 doprint "$option = $opt{$option}\n";
4281 }
4282}
4283
4284$SIG{INT} = qw(cancel_test);
4285
4286# First we need to do is the builds
4287for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4288
4289 # Do not reboot on failing test options
4290 $no_reboot = 1;
4291 $reboot_success = 0;
4292
4293 $have_version = 0;
4294
4295 $iteration = $i;
4296
4297 $build_time = 0;
4298 $install_time = 0;
4299 $reboot_time = 0;
4300 $test_time = 0;
4301
4302 undef %force_config;
4303
4304 my $makecmd = set_test_option("MAKE_CMD", $i);
4305
4306 $outputdir = set_test_option("OUTPUT_DIR", $i);
4307 $builddir = set_test_option("BUILD_DIR", $i);
4308
4309 chdir $builddir || dodie "can't change directory to $builddir";
4310
4311 if (!-d $outputdir) {
4312 mkpath($outputdir) or
4313 dodie "can't create $outputdir";
4314 }
4315
4316 $make = "$makecmd O=$outputdir";
4317
4318 # Load all the options into their mapped variable names
4319 foreach my $opt (keys %option_map) {
4320 ${$option_map{$opt}} = set_test_option($opt, $i);
4321 }
4322
4323 $start_minconfig_defined = 1;
4324
4325 # The first test may override the PRE_KTEST option
4326 if ($i == 1) {
4327 if (defined($pre_ktest)) {
4328 doprint "\n";
4329 run_command $pre_ktest;
4330 }
4331 if ($email_when_started) {
4332 my $name = get_test_name;
4333 send_email("KTEST: Your [$name] test was started",
4334 "Your test was started on $script_start_time");
4335 }
4336 }
4337
4338 # Any test can override the POST_KTEST option
4339 # The last test takes precedence.
4340 if (defined($post_ktest)) {
4341 $final_post_ktest = $post_ktest;
4342 }
4343
4344 if (!defined($start_minconfig)) {
4345 $start_minconfig_defined = 0;
4346 $start_minconfig = $minconfig;
4347 }
4348
4349 if (!-d $tmpdir) {
4350 mkpath($tmpdir) or
4351 dodie "can't create $tmpdir";
4352 }
4353
4354 $ENV{"SSH_USER"} = $ssh_user;
4355 $ENV{"MACHINE"} = $machine;
4356
4357 $buildlog = "$tmpdir/buildlog-$machine";
4358 $testlog = "$tmpdir/testlog-$machine";
4359 $dmesg = "$tmpdir/dmesg-$machine";
4360 $output_config = "$outputdir/.config";
4361
4362 if (!$buildonly) {
4363 $target = "$ssh_user\@$machine";
4364 if (($reboot_type eq "grub") or ($reboot_type eq "grub2bls")) {
4365 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4366 } elsif ($reboot_type eq "grub2") {
4367 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4368 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4369 } elsif ($reboot_type eq "syslinux") {
4370 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4371 }
4372 }
4373
4374 my $run_type = $build_type;
4375 if ($test_type eq "patchcheck") {
4376 $run_type = $patchcheck_type;
4377 } elsif ($test_type eq "bisect") {
4378 $run_type = $bisect_type;
4379 } elsif ($test_type eq "config_bisect") {
4380 $run_type = $config_bisect_type;
4381 } elsif ($test_type eq "make_min_config") {
4382 $run_type = "";
4383 } elsif ($test_type eq "make_warnings_file") {
4384 $run_type = "";
4385 }
4386
4387 # mistake in config file?
4388 if (!defined($run_type)) {
4389 $run_type = "ERROR";
4390 }
4391
4392 my $installme = "";
4393 $installme = " no_install" if ($no_install);
4394
4395 my $name = "";
4396
4397 if (defined($test_name)) {
4398 $name = " ($test_name)";
4399 }
4400
4401 doprint "\n\n";
4402
4403 if (defined($opt{"LOG_FILE"})) {
4404 $test_log_start = tell(LOG);
4405 }
4406
4407 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4408
4409 if (defined($pre_test)) {
4410 my $ret = run_command $pre_test;
4411 if (!$ret && defined($pre_test_die) &&
4412 $pre_test_die) {
4413 dodie "failed to pre_test\n";
4414 }
4415 }
4416
4417 unlink $dmesg;
4418 unlink $buildlog;
4419 unlink $testlog;
4420
4421 if (defined($addconfig)) {
4422 my $min = $minconfig;
4423 if (!defined($minconfig)) {
4424 $min = "";
4425 }
4426 run_command "cat $addconfig $min > $tmpdir/add_config" or
4427 dodie "Failed to create temp config";
4428 $minconfig = "$tmpdir/add_config";
4429 }
4430
4431 if (defined($checkout)) {
4432 run_command "git checkout $checkout" or
4433 dodie "failed to checkout $checkout";
4434 }
4435
4436 $no_reboot = 0;
4437
4438 # A test may opt to not reboot the box
4439 if ($reboot_on_success) {
4440 $reboot_success = 1;
4441 }
4442
4443 if ($test_type eq "bisect") {
4444 bisect $i;
4445 next;
4446 } elsif ($test_type eq "config_bisect") {
4447 config_bisect $i;
4448 next;
4449 } elsif ($test_type eq "patchcheck") {
4450 patchcheck $i;
4451 next;
4452 } elsif ($test_type eq "make_min_config") {
4453 make_min_config $i;
4454 next;
4455 } elsif ($test_type eq "make_warnings_file") {
4456 $no_reboot = 1;
4457 make_warnings_file $i;
4458 next;
4459 }
4460
4461 if ($build_type ne "nobuild") {
4462 build $build_type or next;
4463 check_buildlog or next;
4464 }
4465
4466 if ($test_type eq "install") {
4467 get_version;
4468 install;
4469 success $i;
4470 next;
4471 }
4472
4473 if ($test_type ne "build") {
4474 my $failed = 0;
4475 start_monitor_and_install or $failed = 1;
4476
4477 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4478 do_run_test or $failed = 1;
4479 }
4480 end_monitor;
4481 if ($failed) {
4482 print_times;
4483 next;
4484 }
4485 }
4486
4487 print_times;
4488
4489 success $i;
4490}
4491
4492if (defined($final_post_ktest)) {
4493
4494 my $cp_final_post_ktest = eval_kernel_version $final_post_ktest;
4495 run_command $cp_final_post_ktest;
4496}
4497
4498if ($opt{"POWEROFF_ON_SUCCESS"}) {
4499 halt;
4500} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4501 reboot_to_good;
4502} elsif (defined($switch_to_good)) {
4503 # still need to get to the good kernel
4504 run_command $switch_to_good;
4505}
4506
4507doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
4508
4509if ($email_when_finished) {
4510 send_email("KTEST: Your test has finished!",
4511 "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
4512}
4513
4514if (defined($opt{"LOG_FILE"})) {
4515 print "\n See $opt{LOG_FILE} for the record of results.\n\n";
4516 close LOG;
4517}
4518
4519exit 0;
4520
4521##
4522# The following are here to standardize tabs/spaces/etc across the most likely editors
4523###
4524
4525# Local Variables:
4526# mode: perl
4527# End:
4528# vim: softtabstop=4