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