3 # Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
4 # Licensed under the terms of the GNU GPL License version 2
9 use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
10 use File::Path qw(mkpath);
11 use File::Copy qw(cp);
26 "TEST_TYPE" => "build",
27 "BUILD_TYPE" => "randconfig",
29 "CLOSE_CONSOLE_SIGNAL" => "INT",
31 "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
32 "SLEEP_TIME" => 60, # sleep time between tests
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
45 "MIN_CONFIG_TYPE" => "boot",
46 "SUCCESS_LINE" => "login:",
47 "DETECT_TRIPLE_FAULT" => 1,
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",
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",
68 "BUILD_TARGET" => "arch/x86/boot/bzImage",
69 "TARGET_IMAGE" => "/boot/vmlinuz-test",
75 my $ktest_config = "ktest.conf";
104 my $poweroff_on_error;
105 my $reboot_on_success;
107 my $powercycle_after_reboot;
108 my $poweroff_after_halt;
109 my $max_monitor_wait;
112 my $scp_to_target_install;
130 my $start_minconfig_defined;
131 my $output_minconfig;
133 my $use_output_minconfig;
139 my $bisect_bad_commit = "";
144 my $config_bisect_good;
148 my $bisect_ret_abort;
149 my $bisect_ret_default;
150 my $in_patchcheck = 0;
159 my $bisect_sleep_time;
160 my $patchcheck_sleep_time;
167 my $detect_triplefault;
169 my $close_console_signal;
170 my $reboot_success_line;
172 my $stop_after_success;
173 my $stop_after_failure;
193 my $config_bisect_type;
194 my $config_bisect_check;
197 my $patchcheck_start;
198 my $patchcheck_cherry;
206 # set when a test is something other that just building or install
207 # which would require more options.
210 # tell build not to worry about warnings, even when WARNINGS_FILE is set
213 # set when creating a new config
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.
224 # do not force reboots on config problems
228 my $reboot_success = 0;
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,
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,
324 "CONFIG_BISECT" => \$config_bisect,
325 "CONFIG_BISECT_TYPE" => \$config_bisect_type,
326 "CONFIG_BISECT_CHECK" => \$config_bisect_check,
328 "PATCHCHECK_TYPE" => \$patchcheck_type,
329 "PATCHCHECK_START" => \$patchcheck_start,
330 "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
331 "PATCHCHECK_END" => \$patchcheck_end,
334 # Options may be used by other options, record them.
337 # default variables that can be used
338 chomp ($variable{"PWD"} = `pwd`);
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.
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)
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.
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.
363 $config_help{"BUILD_TARGET"} = << "EOF"
364 The location of the compiled file to copy to the target.
365 (relative to OUTPUT_DIR)
368 $config_help{"BUILD_OPTIONS"} = << "EOF"
369 Options to add to \"make\" when building.
373 $config_help{"TARGET_IMAGE"} = << "EOF"
374 The place to put your image on the test machine.
377 $config_help{"POWER_CYCLE"} = << "EOF"
378 A script or command to reboot the box.
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'
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
388 $config_help{"CONSOLE"} = << "EOF"
389 The script or command that reads the console
391 If you use ttywatch server, something like the following would work.
392 CONSOLE = nc -d localhost 3001
394 For a virtual machine with guest name "Guest".
395 CONSOLE = virsh console Guest
398 $config_help{"LOCALVERSION"} = << "EOF"
399 Required version ending to differentiate the test
400 from other linux builds on the system.
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".
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.
413 The entry in /boot/grub/menu.lst must be entered in manually.
414 The test will not modify that file.
416 If you specify grub2, then you also need to specify both \$GRUB_MENU
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.
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)
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
434 For example, if in the /boot/grub/menu.lst the test kernel title has:
437 GRUB_MENU = Test Kernel
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.
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.
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.
456 $config_help{"REBOOT_SCRIPT"} = << "EOF"
457 A script to reboot the target into the test kernel
458 (Only mandatory if REBOOT_TYPE = script)
463 if (defined($opt{"LOG_FILE"})) {
464 open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
471 if (defined($opt{"LOG_FILE"})) {
484 my ($cancel, $prompt) = @_;
490 print "$prompt [y/n/C] ";
492 print "$prompt [Y/n] ";
496 if ($ans =~ /^\s*$/) {
503 last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
505 last if ($ans =~ /^c$/i);
506 print "Please answer either 'y', 'n' or 'c'.\n";
508 print "Please answer either 'y' or 'n'.\n";
514 if ($ans !~ /^y$/i) {
523 return read_prompt 0, $prompt;
529 return read_prompt 1, $prompt;
532 sub get_mandatory_config {
536 return if (defined($opt{$config}));
538 if (defined($config_help{$config})) {
540 print $config_help{$config};
545 if (defined($default{$config}) && length($default{$config})) {
546 print "\[$default{$config}\] ";
549 $ans =~ s/^\s*(.*\S)\s*$/$1/;
550 if ($ans =~ /^\s*$/) {
551 if ($default{$config}) {
552 $ans = $default{$config};
554 print "Your answer can not be blank\n";
558 $entered_configs{$config} = ${ans};
570 $hours = int($time / 3600);
571 $time -= $hours * 3600;
574 $minutes = int($time / 60);
575 $time -= $minutes * 60;
579 doprint "$hours hour";
580 doprint "s" if ($hours > 1);
585 doprint "$minutes minute";
586 doprint "s" if ($minutes > 1);
590 doprint "$time second";
591 doprint "s" if ($time != 1);
597 doprint "Build time: ";
598 show_time($build_time);
602 doprint "Install time: ";
603 show_time($install_time);
607 doprint "Reboot time: ";
608 show_time($reboot_time);
612 doprint "Test time: ";
613 show_time($test_time);
616 # reset for iterations like bisect
623 sub get_mandatory_configs {
624 get_mandatory_config("MACHINE");
625 get_mandatory_config("BUILD_DIR");
626 get_mandatory_config("OUTPUT_DIR");
629 get_mandatory_config("BUILD_OPTIONS");
632 # options required for other than just building a kernel
634 get_mandatory_config("POWER_CYCLE");
635 get_mandatory_config("CONSOLE");
638 # options required for install and more
639 if ($buildonly != 1) {
640 get_mandatory_config("SSH_USER");
641 get_mandatory_config("BUILD_TARGET");
642 get_mandatory_config("TARGET_IMAGE");
645 get_mandatory_config("LOCALVERSION");
647 return if ($buildonly);
649 my $rtype = $opt{"REBOOT_TYPE"};
651 if (!defined($rtype)) {
652 if (!defined($opt{"GRUB_MENU"})) {
653 get_mandatory_config("REBOOT_TYPE");
654 $rtype = $entered_configs{"REBOOT_TYPE"};
660 if ($rtype eq "grub") {
661 get_mandatory_config("GRUB_MENU");
664 if ($rtype eq "grub2") {
665 get_mandatory_config("GRUB_MENU");
666 get_mandatory_config("GRUB_FILE");
669 if ($rtype eq "syslinux") {
670 get_mandatory_config("SYSLINUX_LABEL");
674 sub process_variables {
675 my ($value, $remove_undef) = @_;
678 # We want to check for '\', and it is just easier
679 # to check the previous characet of '$' and not need
680 # to worry if '$' is the first character. By adding
681 # a space to $value, we can just check [^\\]\$ and
682 # it will still work.
685 while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
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";
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
703 $used_options{$var} = 1;
707 $retval = "$retval$value";
709 # remove the space added in the beginning
716 my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
718 my $prvalue = process_variables($rvalue);
720 if ($buildonly && $lvalue =~ /^TEST_TYPE(\[.*\])?$/ && $prvalue ne "build") {
721 # Note if a test is something other than build, then we
722 # will need other manditory options.
723 if ($prvalue ne "install") {
724 # for bisect, we need to check BISECT_TYPE
725 if ($prvalue ne "bisect") {
729 # install still limits some manditory options.
734 if ($buildonly && $lvalue =~ /^BISECT_TYPE(\[.*\])?$/ && $prvalue ne "build") {
735 if ($prvalue ne "install") {
738 # install still limits some manditory options.
743 if (defined($opt{$lvalue})) {
744 if (!$override || defined(${$overrides}{$lvalue})) {
747 $extra = "In the same override section!\n";
749 die "$name: $.: Option $lvalue defined more than once!\n$extra";
751 ${$overrides}{$lvalue} = $prvalue;
754 $opt{$lvalue} = $prvalue;
758 my ($lvalue, $rvalue, $name) = @_;
760 my $prvalue = process_variables($rvalue);
763 if (defined($evals{$lvalue})) {
764 $arr = $evals{$lvalue};
767 $evals{$lvalue} = $arr;
770 push @{$arr}, $rvalue;
774 my ($lvalue, $rvalue) = @_;
776 if ($rvalue =~ /^\s*$/) {
777 delete $variable{$lvalue};
779 $rvalue = process_variables($rvalue);
780 $variable{$lvalue} = $rvalue;
784 sub process_compare {
785 my ($lval, $cmp, $rval) = @_;
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/;
805 my $statement = "$lval $cmp $rval";
806 my $ret = eval $statement;
808 # $@ stores error of eval
819 return defined($variable{$2}) ||
824 sub process_expression {
825 my ($name, $val) = @_;
829 while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
832 if (process_expression($name, $express)) {
833 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
835 $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
843 while ($val =~ s/^(.*?)($OR|$AND)//) {
847 if (process_expression($name, $express)) {
858 if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
859 my $ret = process_compare($1, $2, $3);
861 die "$name: $.: Unable to process comparison\n";
866 if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
868 return !value_defined($2);
870 return value_defined($2);
874 if ($val =~ /^\s*0\s*$/) {
876 } elsif ($val =~ /^\s*\d+\s*$/) {
880 die ("$name: $.: Undefined content $val in if statement\n");
884 my ($name, $value) = @_;
886 # Convert variables and replace undefined ones with 0
887 my $val = process_variables($value, 1);
888 my $ret = process_expression $name, $val;
894 my ($config, $current_test_num) = @_;
897 open($in, $config) || die "can't read file $config";
900 $name =~ s,.*/(.*),$1,;
902 my $test_num = $$current_test_num;
905 my $num_tests_set = 0;
918 # ignore blank lines and comments
919 next if (/^\s*$/ || /\s*\#/);
921 if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
931 if ($type eq "TEST_START") {
933 if ($num_tests_set) {
934 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
937 $old_test_num = $test_num;
938 $old_repeat = $repeat;
940 $test_num += $repeat;
947 # If SKIP is anywhere in the line, the command will be skipped
948 if ($rest =~ s/\s+SKIP\b//) {
955 if ($rest =~ s/\sELSE\b//) {
957 die "$name: $.: ELSE found with out matching IF section\n$_";
968 if ($rest =~ s/\sIF\s+(.*)//) {
969 if (process_if($name, $1)) {
981 if ($type eq "TEST_START") {
982 if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
984 $repeat_tests{"$test_num"} = $repeat;
986 } elsif ($rest =~ s/\sOVERRIDE\b//) {
989 # Clear previous overrides
994 if (!$skip && $rest !~ /^\s*$/) {
995 die "$name: $.: Gargbage found after $type\n$_";
998 if ($skip && $type eq "TEST_START") {
999 $test_num = $old_test_num;
1000 $repeat = $old_repeat;
1003 } elsif (/^\s*ELSE\b(.*)$/) {
1005 die "$name: $.: ELSE found with out matching IF section\n$_";
1014 if ($rest =~ /\sIF\s+(.*)/) {
1015 # May be a ELSE IF section.
1016 if (process_if($name, $1)) {
1027 if ($rest !~ /^\s*$/) {
1028 die "$name: $.: Gargbage found after DEFAULTS\n$_";
1031 } elsif (/^\s*INCLUDE\s+(\S+)/) {
1036 die "$name: $.: INCLUDE can only be done in default sections\n$_";
1039 my $file = process_variables($1);
1041 if ($file !~ m,^/,) {
1042 # check the path of the config file first
1043 if ($config =~ m,(.*)/,) {
1044 if (-f "$1/$file") {
1051 die "$name: $.: Can't read file $file\n$_";
1054 if (__read_config($file, \$test_num)) {
1058 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
1065 if ($default || $lvalue =~ /\[\d+\]$/) {
1066 set_eval($lvalue, $rvalue, $name);
1068 my $val = "$lvalue\[$test_num\]";
1069 set_eval($val, $rvalue, $name);
1072 } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
1080 ($lvalue eq "NUM_TESTS" ||
1081 $lvalue eq "LOG_FILE" ||
1082 $lvalue eq "CLEAR_LOG")) {
1083 die "$name: $.: $lvalue must be set in DEFAULTS section\n";
1086 if ($lvalue eq "NUM_TESTS") {
1088 die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
1091 die "$name: $.: NUM_TESTS must be set in default section\n";
1096 if ($default || $lvalue =~ /\[\d+\]$/) {
1097 set_value($lvalue, $rvalue, $override, \%overrides, $name);
1099 my $val = "$lvalue\[$test_num\]";
1100 set_value($val, $rvalue, $override, \%overrides, $name);
1103 $repeats{$val} = $repeat;
1106 } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
1112 # process config variables.
1113 # Config variables are only active while reading the
1114 # config and can be defined anywhere. They also ignore
1115 # TEST_START and DEFAULTS, but are skipped if they are in
1116 # on of these sections that have SKIP defined.
1117 # The save variable can be
1118 # defined multiple times and the new one simply overrides
1120 set_variable($lvalue, $rvalue);
1123 die "$name: $.: Garbage found in config\n$_";
1128 $test_num += $repeat - 1;
1129 $opt{"NUM_TESTS"} = $test_num;
1134 $$current_test_num = $test_num;
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";
1145 $default{"TEST_TYPE"} = $ans;
1154 $test_case = __read_config $config, \$test_num;
1156 # make sure we have all mandatory configs
1157 get_mandatory_configs;
1159 # was a test specified?
1161 print "No test case specified.\n";
1167 foreach my $default (keys %default) {
1168 if (!defined($opt{$default})) {
1169 $opt{$default} = $default{$default};
1173 if ($opt{"IGNORE_UNUSED"} == 1) {
1179 # check if there are any stragglers (typos?)
1180 foreach my $option (keys %opt) {
1182 # remove per test labels.
1184 if (!exists($option_map{$op}) &&
1185 !exists($default{$op}) &&
1186 !exists($used_options{$op})) {
1193 $s = " is" if (keys %not_used == 1);
1194 print "The following option$s not used; could be a typo:\n";
1195 foreach my $option (keys %not_used) {
1198 print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
1199 if (!read_yn "Do you want to continue?") {
1206 my ($name, $option, $i) = @_;
1208 # Add space to evaluate the character before $
1209 $option = " $option";
1214 foreach my $test (keys %repeat_tests) {
1216 $i < $test + $repeat_tests{$test}) {
1224 while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
1229 # Append beginning of line
1230 $retval = "$retval$start";
1232 # If the iteration option OPT[$i] exists, then use that.
1233 # otherwise see if the default OPT (without [$i]) exists.
1235 my $o = "$var\[$i\]";
1236 my $parento = "$var\[$parent\]";
1238 # If a variable contains itself, use the default var
1239 if (($var eq $name) && defined($opt{$var})) {
1241 $retval = "$retval$o";
1242 } elsif (defined($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})) {
1250 $retval = "$retval$o";
1251 } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
1252 # special option KERNEL_VERSION uses kernel version
1254 $retval = "$retval$version";
1256 $retval = "$retval\$\{$var\}";
1262 $retval = "$retval$option";
1270 my ($name, $option, $i) = @_;
1272 my $option_name = "$name\[$i\]";
1275 my $old_option = $option;
1277 if (defined($evals{$option_name})) {
1278 $ev = $evals{$option_name};
1279 } elsif (defined($evals{$name})) {
1280 $ev = $evals{$name};
1285 for my $e (@{$ev}) {
1286 eval "\$option =~ $e";
1289 if ($option ne $old_option) {
1290 doprint("$name changed from '$old_option' to '$option'\n");
1297 my ($name, $option, $i) = @_;
1301 # Since an option can evaluate to another option,
1302 # keep iterating until we do not evaluate any more
1305 while ($prev ne $option) {
1306 # Check for recursive evaluations.
1307 # 100 deep should be more than enough.
1309 die "Over 100 evaluations accurred with $option\n" .
1310 "Check for recursive variables\n";
1313 $option = __eval_option($name, $option, $i);
1316 $option = process_evals($name, $option, $i);
1324 sub wait_for_monitor;
1329 # Make sure everything has been written to disk
1332 if (defined($time)) {
1334 # flush out current monitor
1335 # May contain the reboot success line
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";
1346 # nope? power cycle it.
1347 run_command "$power_cycle";
1350 if (defined($time)) {
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 = $ignore_errors;
1357 # Look for the good kernel to boot
1358 if (wait_for_monitor($time, "Linux version")) {
1360 doprint "Reboot did not finish. Forcing power cycle\n";
1361 run_command "$power_cycle";
1364 $ignore_errors = $save_ignore_errors;
1366 # Still need to wait for the reboot to finish
1367 wait_for_monitor($time, $reboot_success_line);
1373 sub reboot_to_good {
1376 if (defined($switch_to_good)) {
1377 run_command $switch_to_good;
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");
1392 doprint "CRITICAL FAILURE... ", @_, "\n";
1396 if ($reboot_on_error && !do_not_reboot) {
1398 doprint "REBOOTING\n";
1401 } elsif ($poweroff_on_error && defined($power_off)) {
1402 doprint "POWERING OFF\n";
1406 if (defined($opt{"LOG_FILE"})) {
1407 print " See $opt{LOG_FILE} for more info.\n";
1414 my ($ptm, $pts) = @_;
1416 my $TIOCSPTLCK = 0x40045431;
1417 my $TIOCGPTN = 0x80045430;
1419 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1420 dodie "Cant open /dev/ptmx";
1423 $tmp = pack("i", 0);
1424 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1425 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1428 ioctl($ptm, $TIOCGPTN, $tmp) or
1429 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1430 $tmp = unpack("i", $tmp);
1432 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1433 dodie "Can't open /dev/pts/$tmp";
1437 my ($ptm, $pts) = @_;
1445 open(\*STDIN, '<&', $pts);
1446 open(\*STDOUT, '>&', $pts);
1447 open(\*STDERR, '>&', $pts);
1452 dodie "Can't open console $console";
1460 # save terminal settings
1463 create_pty($ptm, $pts);
1469 exec_console($ptm, $pts)
1477 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1481 my ($fp, $pid) = @_;
1483 doprint "kill child process $pid\n";
1484 kill $close_console_signal, $pid;
1489 # restore terminal settings
1490 system("stty $stty");
1494 if ($monitor_cnt++) {
1497 $monitor_fp = \*MONFD;
1498 $monitor_pid = open_console $monitor_fp;
1502 open(MONFD, "Stop perl from warning about single use of MONFD");
1506 return if (!defined $console);
1507 if (--$monitor_cnt) {
1510 close_console($monitor_fp, $monitor_pid);
1513 sub wait_for_monitor {
1514 my ($time, $stop) = @_;
1518 my $start_time = time;
1519 my $skip_call_trace = 0;
1521 my $bug_ignored = 0;
1524 doprint "** Wait for monitor to settle down **\n";
1526 # read the monitor and wait for the system to calm down
1528 $line = wait_for_input($monitor_fp, $time);
1529 last if (!defined($line));
1531 $full_line .= $line;
1533 if (defined($stop) && $full_line =~ /$stop/) {
1534 doprint "wait for monitor detected $stop\n";
1538 if ($full_line =~ /\[ backtrace testing \]/) {
1539 $skip_call_trace = 1;
1542 if ($full_line =~ /call trace:/i) {
1543 if (!$bug && !$skip_call_trace) {
1544 if ($ignore_errors) {
1552 if ($full_line =~ /\[ end of backtrace testing \]/) {
1553 $skip_call_trace = 0;
1556 if ($full_line =~ /Kernel panic -/) {
1560 if ($line =~ /\n/) {
1564 if ($now - $start_time >= $max_monitor_wait) {
1565 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1569 print "** Monitor flushed **\n";
1571 # if stop is defined but wasn't hit, return error
1572 # used by reboot (which wants to see a reboot)
1573 if (defined($stop) && !$booted) {
1580 my ($result, $basedir) = @_;
1582 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1583 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1585 my $type = $build_type;
1586 if ($type =~ /useconfig/) {
1587 $type = "useconfig";
1590 my $dir = "$machine-$test_type-$type-$result-$date";
1592 $dir = "$basedir/$dir";
1596 die "can't create $dir";
1600 "config" => $output_config,
1601 "buildlog" => $buildlog,
1603 "testlog" => $testlog,
1606 while (my ($name, $source) = each(%files)) {
1608 cp "$source", "$dir/$name" or
1609 die "failed to copy $source";
1613 doprint "*** Saved info to $dir ***\n";
1618 if (defined($post_test)) {
1619 run_command $post_test;
1622 if ($die_on_failure) {
1630 # no need to reboot for just building.
1631 if (!do_not_reboot) {
1632 doprint "REBOOTING\n";
1633 reboot_to_good $sleep_time;
1638 if (defined($test_name)) {
1639 $name = " ($test_name)";
1642 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1643 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1644 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1645 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1646 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1648 if (defined($store_failures)) {
1649 save_logs "fail", $store_failures;
1656 my ($command, $redirect) = @_;
1665 $command =~ s/\$SSH_USER/$ssh_user/g;
1666 $command =~ s/\$MACHINE/$machine/g;
1668 doprint("$command ... ");
1670 $pid = open(CMD, "$command 2>&1 |") or
1671 (fail "unable to exec $command" and return 0);
1673 if (defined($opt{"LOG_FILE"})) {
1674 open(LOG, ">>$opt{LOG_FILE}") or
1675 dodie "failed to write to log";
1679 if (defined($redirect)) {
1680 open (RD, ">$redirect") or
1681 dodie "failed to write to redirect $redirect";
1686 print LOG if ($dolog);
1687 print RD if ($dord);
1694 close(LOG) if ($dolog);
1695 close(RD) if ($dord);
1698 my $delta = $end_time - $start_time;
1701 doprint "[1 second] ";
1703 doprint "[$delta seconds] ";
1707 doprint "FAILED!\n";
1709 doprint "SUCCESS\n";
1717 my $cp_exec = $ssh_exec;
1719 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1720 return run_command "$cp_exec";
1724 my ($src, $dst, $cp_scp) = @_;
1726 $cp_scp =~ s/\$SRC_FILE/$src/g;
1727 $cp_scp =~ s/\$DST_FILE/$dst/g;
1729 return run_command "$cp_scp";
1732 sub run_scp_install {
1733 my ($src, $dst) = @_;
1735 my $cp_scp = $scp_to_target_install;
1737 return run_scp($src, $dst, $cp_scp);
1741 my ($src, $dst) = @_;
1743 my $cp_scp = $scp_to_target;
1745 return run_scp($src, $dst, $cp_scp);
1748 sub get_grub2_index {
1750 return if (defined($grub_number) && defined($last_grub_menu) &&
1751 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1752 $last_machine eq $machine);
1754 doprint "Find grub2 menu ... ";
1757 my $ssh_grub = $ssh_exec;
1758 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1760 open(IN, "$ssh_grub |")
1761 or die "unable to get $grub_file";
1766 if (/^menuentry.*$grub_menu/) {
1770 } elsif (/^menuentry\s/) {
1776 die "Could not find '$grub_menu' in $grub_file on $machine"
1778 doprint "$grub_number\n";
1779 $last_grub_menu = $grub_menu;
1780 $last_machine = $machine;
1783 sub get_grub_index {
1785 if ($reboot_type eq "grub2") {
1790 if ($reboot_type ne "grub") {
1793 return if (defined($grub_number) && defined($last_grub_menu) &&
1794 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1795 $last_machine eq $machine);
1797 doprint "Find grub menu ... ";
1800 my $ssh_grub = $ssh_exec;
1801 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1803 open(IN, "$ssh_grub |")
1804 or die "unable to get menu.lst";
1809 if (/^\s*title\s+$grub_menu\s*$/) {
1813 } elsif (/^\s*title\s/) {
1819 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1821 doprint "$grub_number\n";
1822 $last_grub_menu = $grub_menu;
1823 $last_machine = $machine;
1828 my ($fp, $time) = @_;
1834 if (!defined($time)) {
1839 vec($rin, fileno($fp), 1) = 1;
1840 ($ready, $time) = select($rin, undef, undef, $time);
1844 # try to read one char at a time
1845 while (sysread $fp, $ch, 1) {
1847 last if ($ch eq "\n");
1850 if (!length($line)) {
1858 if (defined($switch_to_test)) {
1859 run_command $switch_to_test;
1862 if ($reboot_type eq "grub") {
1863 run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
1864 } elsif ($reboot_type eq "grub2") {
1865 run_ssh "$grub_reboot $grub_number";
1866 } elsif ($reboot_type eq "syslinux") {
1867 run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
1868 } elsif (defined $reboot_script) {
1869 run_command "$reboot_script";
1877 doprint "git rev-list --max-count=1 $commit ... ";
1878 my $sha1 = `git rev-list --max-count=1 $commit`;
1885 dodie "Failed to get git $commit";
1898 my $bug_ignored = 0;
1899 my $skip_call_trace = 0;
1902 my $start_time = time;
1909 open(DMESG, "> $dmesg") or
1910 die "unable to write to $dmesg";
1916 my $monitor_start = time;
1918 my $version_found = 0;
1922 if ($bug && defined($stop_after_failure) &&
1923 $stop_after_failure >= 0) {
1924 my $time = $stop_after_failure - (time - $failure_start);
1925 $line = wait_for_input($monitor_fp, $time);
1926 if (!defined($line)) {
1927 doprint "bug timed out after $booted_timeout seconds\n";
1928 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1932 $line = wait_for_input($monitor_fp, $booted_timeout);
1933 if (!defined($line)) {
1934 my $s = $booted_timeout == 1 ? "" : "s";
1935 doprint "Successful boot found: break after $booted_timeout second$s\n";
1939 $line = wait_for_input($monitor_fp);
1940 if (!defined($line)) {
1941 my $s = $timeout == 1 ? "" : "s";
1942 doprint "Timed out after $timeout second$s\n";
1950 # we are not guaranteed to get a full line
1951 $full_line .= $line;
1953 if ($full_line =~ /$success_line/) {
1955 $success_start = time;
1958 if ($booted && defined($stop_after_success) &&
1959 $stop_after_success >= 0) {
1961 if ($now - $success_start >= $stop_after_success) {
1962 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1967 if ($full_line =~ /\[ backtrace testing \]/) {
1968 $skip_call_trace = 1;
1971 if ($full_line =~ /call trace:/i) {
1972 if (!$bug && !$skip_call_trace) {
1973 if ($ignore_errors) {
1977 $failure_start = time;
1982 if ($bug && defined($stop_after_failure) &&
1983 $stop_after_failure >= 0) {
1985 if ($now - $failure_start >= $stop_after_failure) {
1986 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
1991 if ($full_line =~ /\[ end of backtrace testing \]/) {
1992 $skip_call_trace = 0;
1995 if ($full_line =~ /Kernel panic -/) {
1996 $failure_start = time;
2000 # Detect triple faults by testing the banner
2001 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2002 if ($1 eq $version) {
2004 } elsif ($version_found && $detect_triplefault) {
2005 # We already booted into the kernel we are testing,
2006 # but now we booted into another kernel?
2007 # Consider this a triple fault.
2008 doprint "Already booted in Linux kernel $version, but now\n";
2009 doprint "we booted into Linux kernel $1.\n";
2010 doprint "Assuming that this is a triple fault.\n";
2011 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2016 if ($line =~ /\n/) {
2020 if ($stop_test_after > 0 && !$booted && !$bug) {
2021 if (time - $monitor_start > $stop_test_after) {
2022 doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
2028 my $end_time = time;
2029 $reboot_time = $end_time - $start_time;
2034 return 0 if ($in_bisect);
2035 fail "failed - got a bug report" and return 0;
2039 return 0 if ($in_bisect);
2040 fail "failed - never got a boot prompt." and return 0;
2044 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2050 sub eval_kernel_version {
2053 $option =~ s/\$KERNEL_VERSION/$version/g;
2058 sub do_post_install {
2060 return if (!defined($post_install));
2062 my $cp_post_install = eval_kernel_version $post_install;
2063 run_command "$cp_post_install" or
2064 dodie "Failed to run post install";
2067 # Sometimes the reboot fails, and will hang. We try to ssh to the box
2068 # and if we fail, we force another reboot, that should powercycle it.
2070 if (!run_ssh "echo testing connection") {
2077 return if ($no_install);
2079 my $start_time = time;
2081 if (defined($pre_install)) {
2082 my $cp_pre_install = eval_kernel_version $pre_install;
2083 run_command "$cp_pre_install" or
2084 dodie "Failed to run pre install";
2087 my $cp_target = eval_kernel_version $target_image;
2091 run_scp_install "$outputdir/$build_target", "$cp_target" or
2092 dodie "failed to copy image";
2094 my $install_mods = 0;
2096 # should we process modules?
2098 open(IN, "$output_config") or dodie("Can't read config file");
2100 if (/CONFIG_MODULES(=y)?/) {
2109 if (!$install_mods) {
2111 doprint "No modules needed\n";
2112 my $end_time = time;
2113 $install_time = $end_time - $start_time;
2117 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2118 dodie "Failed to install modules";
2120 my $modlib = "/lib/modules/$version";
2121 my $modtar = "ktest-mods.tar.bz2";
2123 run_ssh "rm -rf $modlib" or
2124 dodie "failed to remove old mods: $modlib";
2126 # would be nice if scp -r did not follow symbolic links
2127 run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
2128 dodie "making tarball";
2130 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2131 dodie "failed to copy modules";
2133 unlink "$tmpdir/$modtar";
2135 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2136 dodie "failed to tar modules";
2138 run_ssh "rm -f /tmp/$modtar";
2142 my $end_time = time;
2143 $install_time = $end_time - $start_time;
2147 # get the release name
2148 return if ($have_version);
2149 doprint "$make kernelrelease ... ";
2150 $version = `$make -s kernelrelease | tail -1`;
2152 doprint "$version\n";
2156 sub start_monitor_and_install {
2157 # Make sure the stable kernel has finished booting
2159 # Install bisects, don't need console
2160 if (defined $console) {
2170 start_monitor if (defined $console);
2174 my $check_build_re = ".*:.*(warning|error|Error):.*";
2175 my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2177 sub process_warning_line {
2182 # for distcc heterogeneous systems, some compilers
2183 # do things differently causing warning lines
2184 # to be slightly different. This makes an attempt
2185 # to fixe those issues.
2187 # chop off the index into the line
2188 # using distcc, some compilers give different indexes
2189 # depending on white space
2190 $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
2192 # Some compilers use UTF-8 extended for quotes and some don't.
2193 $line =~ s/$utf8_quote/'/g;
2198 # Read buildlog and check against warnings file for any
2203 sub check_buildlog {
2204 return 1 if (!defined $warnings_file);
2208 # Failed builds should not reboot the target
2209 my $save_no_reboot = $no_reboot;
2212 if (-f $warnings_file) {
2213 open(IN, $warnings_file) or
2214 dodie "Error opening $warnings_file";
2217 if (/$check_build_re/) {
2218 my $warning = process_warning_line $_;
2220 $warnings_list{$warning} = 1;
2226 # If warnings file didn't exist, and WARNINGS_FILE exist,
2227 # then we fail on any warning!
2229 open(IN, $buildlog) or dodie "Can't open $buildlog";
2231 if (/$check_build_re/) {
2232 my $warning = process_warning_line $_;
2234 if (!defined $warnings_list{$warning}) {
2235 fail "New warning found (not in $warnings_file)\n$_\n";
2236 $no_reboot = $save_no_reboot;
2241 $no_reboot = $save_no_reboot;
2245 sub check_patch_buildlog {
2248 my @files = `git show $patch | diffstat -l`;
2250 foreach my $file (@files) {
2254 open(IN, "git show $patch |") or
2255 dodie "failed to show $patch";
2257 if (m,^--- a/(.*),) {
2259 $files[$#files] = $1;
2264 open(IN, $buildlog) or dodie "Can't open $buildlog";
2266 if (/^\s*(.*?):.*(warning|error)/) {
2268 foreach my $file (@files) {
2269 my $fullpath = "$builddir/$file";
2270 if ($file eq $err || $fullpath eq $err) {
2271 fail "$file built with warnings" and return 0;
2281 sub apply_min_config {
2282 my $outconfig = "$output_config.new";
2284 # Read the config file and remove anything that
2285 # is in the force_config hash (from minconfig and others)
2286 # then add the force config back.
2288 doprint "Applying minimum configurations into $output_config.new\n";
2290 open (OUT, ">$outconfig") or
2291 dodie "Can't create $outconfig";
2293 if (-f $output_config) {
2294 open (IN, $output_config) or
2295 dodie "Failed to open $output_config";
2297 if (/^(# )?(CONFIG_[^\s=]*)/) {
2298 next if (defined($force_config{$2}));
2304 foreach my $config (keys %force_config) {
2305 print OUT "$force_config{$config}\n";
2309 run_command "mv $outconfig $output_config";
2312 sub make_oldconfig {
2314 my @force_list = keys %force_config;
2316 if ($#force_list >= 0) {
2320 if (!run_command "$make olddefconfig") {
2321 # Perhaps olddefconfig doesn't exist in this version of the kernel
2323 doprint "olddefconfig failed, trying make oldnoconfig\n";
2324 if (!run_command "$make oldnoconfig") {
2325 doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
2326 # try a yes '' | oldconfig
2327 run_command "yes '' | $make oldconfig" or
2328 dodie "failed make config oldconfig";
2333 # read a config file and use this to force new configs.
2334 sub load_force_config {
2337 doprint "Loading force configs from $config\n";
2338 open(IN, $config) or
2339 dodie "failed to read $config";
2342 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2343 $force_config{$1} = $_;
2344 } elsif (/^# (CONFIG_\S*) is not set/) {
2345 $force_config{$1} = $_;
2356 my $start_time = time;
2358 # Failed builds should not reboot the target
2359 my $save_no_reboot = $no_reboot;
2362 # Calculate a new version from here.
2365 if (defined($pre_build)) {
2366 my $ret = run_command $pre_build;
2367 if (!$ret && defined($pre_build_die) &&
2369 dodie "failed to pre_build\n";
2373 if ($type =~ /^useconfig:(.*)/) {
2374 run_command "cp $1 $output_config" or
2375 dodie "could not copy $1 to .config";
2377 $type = "oldconfig";
2380 # old config can ask questions
2381 if ($type eq "oldconfig") {
2382 $type = "olddefconfig";
2384 # allow for empty configs
2385 run_command "touch $output_config";
2388 run_command "mv $output_config $outputdir/config_temp" or
2389 dodie "moving .config";
2391 run_command "$make mrproper" or dodie "make mrproper";
2393 run_command "mv $outputdir/config_temp $output_config" or
2394 dodie "moving config_temp";
2397 } elsif (!$noclean) {
2398 unlink "$output_config";
2399 run_command "$make mrproper" or
2400 dodie "make mrproper";
2403 # add something to distinguish this build
2404 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2405 print OUT "$localversion\n";
2408 if (defined($minconfig)) {
2409 load_force_config($minconfig);
2412 if ($type ne "olddefconfig") {
2413 run_command "$make $type" or
2414 dodie "failed make config";
2416 # Run old config regardless, to enforce min configurations
2419 my $build_ret = run_command "$make $build_options", $buildlog;
2421 if (defined($post_build)) {
2422 # Because a post build may change the kernel version
2425 my $ret = run_command $post_build;
2426 if (!$ret && defined($post_build_die) &&
2428 dodie "failed to post_build\n";
2433 # bisect may need this to pass
2435 $no_reboot = $save_no_reboot;
2438 fail "failed build" and return 0;
2441 $no_reboot = $save_no_reboot;
2443 my $end_time = time;
2444 $build_time = $end_time - $start_time;
2450 if (!run_ssh "halt" or defined($power_off)) {
2451 if (defined($poweroff_after_halt)) {
2452 sleep $poweroff_after_halt;
2453 run_command "$power_off";
2457 run_command "$power_off";
2464 if (defined($post_test)) {
2465 run_command $post_test;
2472 if (defined($test_name)) {
2473 $name = " ($test_name)";
2476 doprint "\n\n*******************************************\n";
2477 doprint "*******************************************\n";
2478 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2479 doprint "*******************************************\n";
2480 doprint "*******************************************\n";
2482 if (defined($store_successes)) {
2483 save_logs "success", $store_successes;
2486 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2487 doprint "Reboot and wait $sleep_time seconds\n";
2488 reboot_to_good $sleep_time;
2494 doprint "Pass, fail, or skip? [p/f/s]";
2497 if ($ans eq "p" || $ans eq "P") {
2499 } elsif ($ans eq "f" || $ans eq "F") {
2501 } elsif ($ans eq "s" || $ans eq "S") {
2504 print "Please answer 'p', 'f', or 's'\n";
2509 sub child_run_test {
2512 # child should have no power
2513 $reboot_on_error = 0;
2514 $poweroff_on_error = 0;
2515 $die_on_failure = 1;
2517 run_command $run_test, $testlog or $failed = 1;
2524 sub child_finished {
2534 my $bug_ignored = 0;
2536 my $start_time = time;
2540 doprint "run test $run_test\n";
2544 $SIG{CHLD} = qw(child_finished);
2548 child_run_test if (!$child_pid);
2553 $line = wait_for_input($monitor_fp, 1);
2554 if (defined($line)) {
2556 # we are not guaranteed to get a full line
2557 $full_line .= $line;
2560 if ($full_line =~ /call trace:/i) {
2561 if ($ignore_errors) {
2568 if ($full_line =~ /Kernel panic -/) {
2572 if ($line =~ /\n/) {
2576 } while (!$child_done && !$bug);
2578 if (!$bug && $bug_ignored) {
2579 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2583 my $failure_start = time;
2586 $line = wait_for_input($monitor_fp, 1);
2587 if (defined($line)) {
2591 if ($now - $failure_start >= $stop_after_failure) {
2594 } while (defined($line));
2596 doprint "Detected kernel crash!\n";
2597 # kill the child with extreme prejudice
2601 waitpid $child_pid, 0;
2604 my $end_time = time;
2605 $test_time = $end_time - $start_time;
2607 if (!$bug && $in_bisect) {
2608 if (defined($bisect_ret_good)) {
2609 if ($child_exit == $bisect_ret_good) {
2613 if (defined($bisect_ret_skip)) {
2614 if ($child_exit == $bisect_ret_skip) {
2618 if (defined($bisect_ret_abort)) {
2619 if ($child_exit == $bisect_ret_abort) {
2620 fail "test abort" and return -2;
2623 if (defined($bisect_ret_bad)) {
2624 if ($child_exit == $bisect_ret_skip) {
2628 if (defined($bisect_ret_default)) {
2629 if ($bisect_ret_default eq "good") {
2631 } elsif ($bisect_ret_default eq "bad") {
2633 } elsif ($bisect_ret_default eq "skip") {
2635 } elsif ($bisect_ret_default eq "abort") {
2638 fail "unknown default action: $bisect_ret_default"
2644 if ($bug || $child_exit) {
2645 return 0 if $in_bisect;
2646 fail "test failed" and return 0;
2651 sub run_git_bisect {
2654 doprint "$command ... ";
2656 my $output = `$command 2>&1`;
2663 dodie "Failed to git bisect";
2666 doprint "SUCCESS\n";
2667 if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
2668 doprint "$1 [$2]\n";
2669 } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
2670 $bisect_bad_commit = $1;
2671 doprint "Found bad commit... $1\n";
2674 # we already logged it, just print it now.
2682 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2683 reboot_to_good $bisect_sleep_time;
2686 # returns 1 on success, 0 on failure, -1 on skip
2687 sub run_bisect_test {
2688 my ($type, $buildtype) = @_;
2697 build $buildtype or $failed = 1;
2699 if ($type ne "build") {
2700 if ($failed && $bisect_skip) {
2704 dodie "Failed on build" if $failed;
2707 start_monitor_and_install or $failed = 1;
2709 if ($type ne "boot") {
2710 if ($failed && $bisect_skip) {
2716 dodie "Failed on boot" if $failed;
2718 do_run_test or $failed = 1;
2729 # reboot the box to a kernel we can ssh to
2730 if ($type ne "build") {
2740 my $buildtype = "oldconfig";
2742 # We should have a minconfig to use?
2743 if (defined($minconfig)) {
2744 $buildtype = "useconfig:$minconfig";
2747 # If the user sets bisect_tries to less than 1, then no tries
2751 # Still let the user manually decide that though.
2752 if ($bisect_tries < 1 && $bisect_manual) {
2753 $ret = answer_bisect;
2756 for (my $i = 0; $i < $bisect_tries; $i++) {
2757 if ($bisect_tries > 1) {
2759 doprint("Running bisect trial $t of $bisect_tries:\n");
2761 $ret = run_bisect_test $type, $buildtype;
2763 if ($bisect_manual) {
2764 $ret = answer_bisect;
2770 # Are we looking for where it worked, not failed?
2771 if ($reverse_bisect && $ret >= 0) {
2777 } elsif ($ret == 0) {
2779 } elsif ($bisect_skip) {
2780 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2785 sub update_bisect_replay {
2786 my $tmp_log = "$tmpdir/ktest_bisect_log";
2787 run_command "git bisect log > $tmp_log" or
2788 die "can't create bisect log";
2797 die "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
2798 die "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
2799 die "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
2801 my $good = $bisect_good;
2802 my $bad = $bisect_bad;
2803 my $type = $bisect_type;
2804 my $start = $bisect_start;
2805 my $replay = $bisect_replay;
2806 my $start_files = $bisect_files;
2808 if (defined($start_files)) {
2809 $start_files = " -- " . $start_files;
2814 # convert to true sha1's
2815 $good = get_sha1($good);
2816 $bad = get_sha1($bad);
2818 if (defined($bisect_reverse) && $bisect_reverse == 1) {
2819 doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
2820 $reverse_bisect = 1;
2822 $reverse_bisect = 0;
2825 # Can't have a test without having a test to run
2826 if ($type eq "test" && !defined($run_test)) {
2830 # Check if a bisect was running
2831 my $bisect_start_file = "$builddir/.git/BISECT_START";
2833 my $check = $bisect_check;
2834 my $do_check = defined($check) && $check ne "0";
2836 if ( -f $bisect_start_file ) {
2837 print "Bisect in progress found\n";
2839 print " If you say yes, then no checks of good or bad will be done\n";
2841 if (defined($replay)) {
2842 print "** BISECT_REPLAY is defined in config file **";
2843 print " Ignore config option and perform new git bisect log?\n";
2844 if (read_ync " (yes, no, or cancel) ") {
2845 $replay = update_bisect_replay;
2848 } elsif (read_yn "read git log and continue?") {
2849 $replay = update_bisect_replay;
2857 my $head = get_sha1("HEAD");
2859 if ($check ne "good") {
2860 doprint "TESTING BISECT BAD [$bad]\n";
2861 run_command "git checkout $bad" or
2862 die "Failed to checkout $bad";
2864 $result = run_bisect $type;
2866 if ($result ne "bad") {
2867 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2871 if ($check ne "bad") {
2872 doprint "TESTING BISECT GOOD [$good]\n";
2873 run_command "git checkout $good" or
2874 die "Failed to checkout $good";
2876 $result = run_bisect $type;
2878 if ($result ne "good") {
2879 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2883 # checkout where we started
2884 run_command "git checkout $head" or
2885 die "Failed to checkout $head";
2888 run_command "git bisect start$start_files" or
2889 dodie "could not start bisect";
2891 if (defined($replay)) {
2892 run_command "git bisect replay $replay" or
2893 dodie "failed to run replay";
2896 run_command "git bisect good $good" or
2897 dodie "could not set bisect good to $good";
2899 run_git_bisect "git bisect bad $bad" or
2900 dodie "could not set bisect bad to $bad";
2904 if (defined($start)) {
2905 run_command "git checkout $start" or
2906 dodie "failed to checkout $start";
2911 $result = run_bisect $type;
2912 $test = run_git_bisect "git bisect $result";
2916 run_command "git bisect log" or
2917 dodie "could not capture git bisect log";
2919 run_command "git bisect reset" or
2920 dodie "could not reset git bisect";
2922 doprint "Bad commit was [$bisect_bad_commit]\n";
2927 # config_ignore holds the configs that were set (or unset) for
2928 # a good config and we will ignore these configs for the rest
2929 # of a config bisect. These configs stay as they were.
2932 # config_set holds what all configs were set as.
2935 # config_off holds the set of configs that the bad config had disabled.
2936 # We need to record them and set them in the .config when running
2937 # olddefconfig, because olddefconfig keeps the defaults.
2940 # config_off_tmp holds a set of configs to turn off for now
2943 # config_list is the set of configs that are being tested
2949 sub assign_configs {
2950 my ($hash, $config) = @_;
2952 doprint "Reading configs from $config\n";
2955 or dodie "Failed to read $config";
2959 if (/^((CONFIG\S*)=.*)/) {
2961 } elsif (/^(# (CONFIG\S*) is not set)/) {
2969 sub process_config_ignore {
2972 assign_configs \%config_ignore, $config;
2975 sub get_dependencies {
2978 my $arr = $dependency{$config};
2979 if (!defined($arr)) {
2985 foreach my $dep (@{$arr}) {
2986 print "ADD DEP $dep\n";
2987 @deps = (@deps, get_dependencies $dep);
2994 my ($pc, $file) = @_;
2996 my %configs = %{$pc};
2998 doprint "Saving configs into $file\n";
3000 open(OUT, ">$file") or dodie "Can not write to $file";
3002 foreach my $config (keys %configs) {
3003 print OUT "$configs{$config}\n";
3009 my ($name, $pc) = @_;
3011 doprint "Creating old config from $name configs\n";
3013 save_config $pc, $output_config;
3018 # compare two config hashes, and return configs with different vals.
3019 # It returns B's config values, but you can use A to see what A was.
3020 sub diff_config_vals {
3023 # crappy Perl way to pass in hashes.
3029 foreach my $item (keys %a) {
3030 if (defined($b{$item}) && $b{$item} ne $a{$item}) {
3031 $ret{$item} = $b{$item};
3038 # compare two config hashes and return the configs in B but not A
3044 # crappy Perl way to pass in hashes.
3048 foreach my $item (keys %b) {
3049 if (!defined($a{$item})) {
3050 $ret{$item} = $b{$item};
3057 # return if two configs are equal or not
3058 # 0 is equal +1 b has something a does not
3059 # +1 if a and b have a different item.
3060 # -1 if a has something b does not
3061 sub compare_configs {
3066 # crappy Perl way to pass in hashes.
3070 foreach my $item (keys %b) {
3071 if (!defined($a{$item})) {
3074 if ($a{$item} ne $b{$item}) {
3079 foreach my $item (keys %a) {
3080 if (!defined($b{$item})) {
3088 sub run_config_bisect_test {
3091 my $ret = run_bisect_test $type, "oldconfig";
3093 if ($bisect_manual) {
3094 $ret = answer_bisect;
3100 sub process_failed {
3103 doprint "\n\n***************************************\n";
3104 doprint "Found bad config: $config\n";
3105 doprint "***************************************\n\n";
3108 # used for config bisecting
3112 sub process_new_config {
3113 my ($tc, $nc, $gc, $bc) = @_;
3115 my %tmp_config = %{$tc};
3116 my %good_configs = %{$gc};
3117 my %bad_configs = %{$bc};
3124 create_config "tmp_configs", \%tmp_config;
3125 assign_configs \%new_configs, $output_config;
3127 $ret = compare_configs \%new_configs, \%bad_configs;
3129 doprint "New config equals bad config, try next test\n";
3134 $ret = compare_configs \%new_configs, \%good_configs;
3136 doprint "New config equals good config, try next test\n";
3141 %{$nc} = %new_configs;
3146 sub run_config_bisect {
3147 my ($pgood, $pbad) = @_;
3149 my $type = $config_bisect_type;
3151 my %good_configs = %{$pgood};
3152 my %bad_configs = %{$pbad};
3154 my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
3155 my %b_configs = diff_configs \%good_configs, \%bad_configs;
3156 my %g_configs = diff_configs \%bad_configs, \%good_configs;
3158 my @diff_arr = keys %diff_configs;
3159 my $len_diff = $#diff_arr + 1;
3161 my @b_arr = keys %b_configs;
3162 my $len_b = $#b_arr + 1;
3164 my @g_arr = keys %g_configs;
3165 my $len_g = $#g_arr + 1;
3171 # First, lets get it down to a single subset.
3172 # Is the problem with a difference in values?
3173 # Is the problem with a missing config?
3174 # Is the problem with a config that breaks things?
3176 # Enable all of one set and see if we get a new bad
3179 # first set the good config to the bad values.
3181 doprint "d=$len_diff g=$len_g b=$len_b\n";
3183 # first lets enable things in bad config that are enabled in good config
3185 if ($len_diff > 0) {
3186 if ($len_b > 0 || $len_g > 0) {
3187 my %tmp_config = %bad_configs;
3189 doprint "Set tmp config to be bad config with good config values\n";
3190 foreach my $item (@diff_arr) {
3191 $tmp_config{$item} = $good_configs{$item};
3194 $runtest = process_new_config \%tmp_config, \%new_configs,
3195 \%good_configs, \%bad_configs;
3199 if (!$runtest && $len_diff > 0) {
3201 if ($len_diff == 1) {
3202 process_failed $diff_arr[0];
3205 my %tmp_config = %bad_configs;
3207 my $half = int($#diff_arr / 2);
3208 my @tophalf = @diff_arr[0 .. $half];
3210 doprint "Settings bisect with top half:\n";
3211 doprint "Set tmp config to be bad config with some good config values\n";
3212 foreach my $item (@tophalf) {
3213 $tmp_config{$item} = $good_configs{$item};
3216 $runtest = process_new_config \%tmp_config, \%new_configs,
3217 \%good_configs, \%bad_configs;
3220 my %tmp_config = %bad_configs;
3222 doprint "Try bottom half\n";
3224 my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
3226 foreach my $item (@bottomhalf) {
3227 $tmp_config{$item} = $good_configs{$item};
3230 $runtest = process_new_config \%tmp_config, \%new_configs,
3231 \%good_configs, \%bad_configs;
3236 $ret = run_config_bisect_test $type;
3238 doprint "NEW GOOD CONFIG\n";
3239 %good_configs = %new_configs;
3240 run_command "mv $good_config ${good_config}.last";
3241 save_config \%good_configs, $good_config;
3242 %{$pgood} = %good_configs;
3244 doprint "NEW BAD CONFIG\n";
3245 %bad_configs = %new_configs;
3246 run_command "mv $bad_config ${bad_config}.last";
3247 save_config \%bad_configs, $bad_config;
3248 %{$pbad} = %bad_configs;
3253 fail "Hmm, need to do a mix match?\n";
3260 my $type = $config_bisect_type;
3263 $bad_config = $config_bisect;
3265 if (defined($config_bisect_good)) {
3266 $good_config = $config_bisect_good;
3267 } elsif (defined($minconfig)) {
3268 $good_config = $minconfig;
3270 doprint "No config specified, checking if defconfig works";
3271 $ret = run_bisect_test $type, "defconfig";
3273 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3276 $good_config = $output_config;
3279 # we don't want min configs to cause issues here.
3280 doprint "Disabling 'MIN_CONFIG' for this test\n";
3287 doprint "Run good configs through make oldconfig\n";
3288 assign_configs \%tmp_configs, $good_config;
3289 create_config "$good_config", \%tmp_configs;
3290 assign_configs \%good_configs, $output_config;
3292 doprint "Run bad configs through make oldconfig\n";
3293 assign_configs \%tmp_configs, $bad_config;
3294 create_config "$bad_config", \%tmp_configs;
3295 assign_configs \%bad_configs, $output_config;
3297 $good_config = "$tmpdir/good_config";
3298 $bad_config = "$tmpdir/bad_config";
3300 save_config \%good_configs, $good_config;
3301 save_config \%bad_configs, $bad_config;
3304 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3305 if ($config_bisect_check ne "good") {
3306 doprint "Testing bad config\n";
3308 $ret = run_bisect_test $type, "useconfig:$bad_config";
3310 fail "Bad config succeeded when expected to fail!";
3314 if ($config_bisect_check ne "bad") {
3315 doprint "Testing good config\n";
3317 $ret = run_bisect_test $type, "useconfig:$good_config";
3319 fail "Good config failed when expected to succeed!";
3326 $ret = run_config_bisect \%good_configs, \%bad_configs;
3330 return $ret if ($ret < 0);
3335 sub patchcheck_reboot {
3336 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3337 reboot_to_good $patchcheck_sleep_time;
3343 die "PATCHCHECK_START[$i] not defined\n"
3344 if (!defined($patchcheck_start));
3345 die "PATCHCHECK_TYPE[$i] not defined\n"
3346 if (!defined($patchcheck_type));
3348 my $start = $patchcheck_start;
3350 my $cherry = $patchcheck_cherry;
3351 if (!defined($cherry)) {
3356 if (defined($patchcheck_end)) {
3357 $end = $patchcheck_end;
3359 die "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3362 # Get the true sha1's since we can use things like HEAD~3
3363 $start = get_sha1($start);
3364 $end = get_sha1($end);
3366 my $type = $patchcheck_type;
3368 # Can't have a test without having a test to run
3369 if ($type eq "test" && !defined($run_test)) {
3374 open (IN, "git cherry -v $start $end|") or
3375 dodie "could not get git list";
3377 open (IN, "git log --pretty=oneline $end|") or
3378 dodie "could not get git list";
3385 # git cherry adds a '+' we want to remove
3387 $list[$#list+1] = $_;
3388 last if (/^$start/);
3393 if ($list[$#list] !~ /^$start/) {
3394 fail "SHA1 $start not found";
3397 # go backwards in the list
3398 @list = reverse @list;
3401 doprint("Going to test the following commits:\n");
3402 foreach my $l (@list) {
3406 my $save_clean = $noclean;
3407 my %ignored_warnings;
3409 if (defined($ignore_warnings)) {
3410 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3411 $ignored_warnings{$sha1} = 1;
3416 foreach my $item (@list) {
3418 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3420 doprint "\nProcessing commit $item\n\n";
3422 run_command "git checkout $sha1" or
3423 die "Failed to checkout $sha1";
3425 # only clean on the first and last patch
3426 if ($item eq $list[0] ||
3427 $item eq $list[$#list]) {
3428 $noclean = $save_clean;
3433 if (defined($minconfig)) {
3434 build "useconfig:$minconfig" or return 0;
3436 # ?? no config to use?
3437 build "oldconfig" or return 0;
3440 # No need to do per patch checking if warnings file exists
3441 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3442 check_patch_buildlog $sha1 or return 0;
3445 check_buildlog or return 0;
3447 next if ($type eq "build");
3451 start_monitor_and_install or $failed = 1;
3453 if (!$failed && $type ne "boot"){
3454 do_run_test or $failed = 1;
3479 # $config depends on $dep
3480 my ($config, $dep) = @_;
3482 if (defined($depends{$config})) {
3483 $depends{$config} .= " " . $dep;
3485 $depends{$config} = $dep;
3488 # record the number of configs depending on $dep
3489 if (defined $depcount{$dep}) {
3492 $depcount{$dep} = 1;
3496 # taken from streamline_config.pl
3508 if (! -f $kconfig) {
3509 doprint "file $kconfig does not exist, skipping\n";
3513 open(KIN, "$kconfig")
3514 or die "Can't open $kconfig";
3518 # Make sure that lines ending with \ continue
3520 $_ = $line . " " . $_;
3531 # collect any Kconfig sources
3532 if (/^source\s*"(.*)"/) {
3533 $kconfigs[$#kconfigs+1] = $1;
3537 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3541 for (my $i = 0; $i < $iflevel; $i++) {
3542 add_dep $config, $ifdeps[$i];
3545 # collect the depends for the config
3546 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3548 add_dep $config, $1;
3550 # Get the configs that select this config
3551 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3553 # selected by depends on config
3554 add_dep $1, $config;
3556 # Check for if statements
3557 } elsif (/^if\s+(.*\S)\s*$/) {
3559 # remove beginning and ending non text
3560 $deps =~ s/^[^a-zA-Z0-9_]*//;
3561 $deps =~ s/[^a-zA-Z0-9_]*$//;
3563 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3565 $ifdeps[$iflevel++] = join ':', @deps;
3567 } elsif (/^endif/) {
3569 $iflevel-- if ($iflevel);
3572 } elsif (/^\s*help\s*$/) {
3578 # read in any configs that were found.
3579 foreach $kconfig (@kconfigs) {
3580 if (!defined($read_kconfigs{$kconfig})) {
3581 $read_kconfigs{$kconfig} = 1;
3582 read_kconfig("$builddir/$kconfig");
3588 # find out which arch this is by the kconfig file
3589 open (IN, $output_config)
3590 or dodie "Failed to read $output_config";
3593 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3600 if (!defined($arch)) {
3601 doprint "Could not find arch from config file\n";
3602 doprint "no dependencies used\n";
3606 # arch is really the subarch, we need to know
3607 # what directory to look at.
3608 if ($arch eq "i386" || $arch eq "x86_64") {
3610 } elsif ($arch =~ /^tile/) {
3614 my $kconfig = "$builddir/arch/$arch/Kconfig";
3616 if (! -f $kconfig && $arch =~ /\d$/) {
3618 # some subarchs have numbers, truncate them
3620 $kconfig = "$builddir/arch/$arch/Kconfig";
3621 if (! -f $kconfig) {
3622 doprint "No idea what arch dir $orig is for\n";
3623 doprint "no dependencies used\n";
3628 read_kconfig($kconfig);
3631 sub make_new_config {
3634 open (OUT, ">$output_config")
3635 or dodie "Failed to write $output_config";
3637 foreach my $config (@configs) {
3638 print OUT "$config\n";
3646 $config =~ s/CONFIG_//;
3654 my $kconfig = chomp_config $dep;
3656 $dep = $depends{"$kconfig"};
3658 # the dep string we have saves the dependencies as they
3659 # were found, including expressions like ! && ||. We
3660 # want to split this out into just an array of configs.
3662 my $valid = "A-Za-z_0-9";
3666 while ($dep =~ /[$valid]/) {
3668 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3669 my $conf = "CONFIG_" . $1;
3671 $configs[$#configs + 1] = $conf;
3673 $dep =~ s/^[^$valid]*[$valid]+//;
3675 die "this should never happen";
3685 my %processed_configs;
3686 my %nochange_config;
3688 sub test_this_config {
3693 # if we already processed this config, skip it
3694 if (defined($processed_configs{$config})) {
3697 $processed_configs{$config} = 1;
3699 # if this config failed during this round, skip it
3700 if (defined($nochange_config{$config})) {
3704 my $kconfig = chomp_config $config;
3706 # Test dependencies first
3707 if (defined($depends{"$kconfig"})) {
3708 my @parents = get_depends $config;
3709 foreach my $parent (@parents) {
3710 # if the parent is in the min config, check it first
3711 next if (!defined($min_configs{$parent}));
3712 $found = test_this_config($parent);
3713 if (defined($found)) {
3719 # Remove this config from the list of configs
3720 # do a make olddefconfig and then read the resulting
3721 # .config to make sure it is missing the config that
3723 my %configs = %min_configs;
3724 delete $configs{$config};
3725 make_new_config ((values %configs), (values %keep_configs));
3728 assign_configs \%configs, $output_config;
3730 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3734 doprint "disabling config $config did not change .config\n";
3736 $nochange_config{$config} = 1;
3741 sub make_min_config {
3744 my $type = $minconfig_type;
3745 if ($type ne "boot" && $type ne "test") {
3746 fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
3747 " make_min_config works only with 'boot' and 'test'\n" and return;
3750 if (!defined($output_minconfig)) {
3751 fail "OUTPUT_MIN_CONFIG not defined" and return;
3754 # If output_minconfig exists, and the start_minconfig
3755 # came from min_config, than ask if we should use
3757 if (-f $output_minconfig && !$start_minconfig_defined) {
3758 print "$output_minconfig exists\n";
3759 if (!defined($use_output_minconfig)) {
3760 if (read_yn " Use it as minconfig?") {
3761 $start_minconfig = $output_minconfig;
3763 } elsif ($use_output_minconfig > 0) {
3764 doprint "Using $output_minconfig as MIN_CONFIG\n";
3765 $start_minconfig = $output_minconfig;
3767 doprint "Set to still use MIN_CONFIG as starting point\n";
3771 if (!defined($start_minconfig)) {
3772 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3775 my $temp_config = "$tmpdir/temp_config";
3777 # First things first. We build an allnoconfig to find
3778 # out what the defaults are that we can't touch.
3779 # Some are selections, but we really can't handle selections.
3781 my $save_minconfig = $minconfig;
3784 run_command "$make allnoconfig" or return 0;
3788 process_config_ignore $output_config;
3790 undef %save_configs;
3793 if (defined($ignore_config)) {
3794 # make sure the file exists
3795 `touch $ignore_config`;
3796 assign_configs \%save_configs, $ignore_config;
3799 %keep_configs = %save_configs;
3801 doprint "Load initial configs from $start_minconfig\n";
3803 # Look at the current min configs, and save off all the
3804 # ones that were set via the allnoconfig
3805 assign_configs \%min_configs, $start_minconfig;
3807 my @config_keys = keys %min_configs;
3809 # All configs need a depcount
3810 foreach my $config (@config_keys) {
3811 my $kconfig = chomp_config $config;
3812 if (!defined $depcount{$kconfig}) {
3813 $depcount{$kconfig} = 0;
3817 # Remove anything that was set by the make allnoconfig
3818 # we shouldn't need them as they get set for us anyway.
3819 foreach my $config (@config_keys) {
3820 # Remove anything in the ignore_config
3821 if (defined($keep_configs{$config})) {
3822 my $file = $ignore_config;
3823 $file =~ s,.*/(.*?)$,$1,;
3824 doprint "$config set by $file ... ignored\n";
3825 delete $min_configs{$config};
3828 # But make sure the settings are the same. If a min config
3829 # sets a selection, we do not want to get rid of it if
3830 # it is not the same as what we have. Just move it into
3832 if (defined($config_ignore{$config})) {
3833 if ($config_ignore{$config} ne $min_configs{$config}) {
3834 doprint "$config is in allnoconfig as '$config_ignore{$config}'";
3835 doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n";
3836 $keep_configs{$config} = $min_configs{$config};
3838 doprint "$config set by allnoconfig ... ignored\n";
3840 delete $min_configs{$config};
3852 # Now disable each config one by one and do a make oldconfig
3853 # till we find a config that changes our list.
3855 my @test_configs = keys %min_configs;
3857 # Sort keys by who is most dependent on
3858 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3861 # Put configs that did not modify the config at the end.
3863 for (my $i = 0; $i < $#test_configs; $i++) {
3864 if (!defined($nochange_config{$test_configs[0]})) {
3868 # This config didn't change the .config last time.
3869 # Place it at the end
3870 my $config = shift @test_configs;
3871 push @test_configs, $config;
3874 # if every test config has failed to modify the .config file
3875 # in the past, then reset and start over.
3877 undef %nochange_config;
3880 undef %processed_configs;
3882 foreach my $config (@test_configs) {
3884 $found = test_this_config $config;
3886 last if (defined($found));
3888 # oh well, try another config
3891 if (!defined($found)) {
3892 # we could have failed due to the nochange_config hash
3893 # reset and try again
3895 undef %nochange_config;
3899 doprint "No more configs found that we can disable\n";
3907 doprint "Test with $config disabled\n";
3909 # set in_bisect to keep build and monitor from dieing
3913 build "oldconfig" or $failed = 1;
3915 start_monitor_and_install or $failed = 1;
3917 if ($type eq "test" && !$failed) {
3918 do_run_test or $failed = 1;
3927 doprint "$min_configs{$config} is needed to boot the box... keeping\n";
3928 # this config is needed, add it to the ignore list.
3929 $keep_configs{$config} = $min_configs{$config};
3930 $save_configs{$config} = $min_configs{$config};
3931 delete $min_configs{$config};
3933 # update new ignore configs
3934 if (defined($ignore_config)) {
3935 open (OUT, ">$temp_config")
3936 or die "Can't write to $temp_config";
3937 foreach my $config (keys %save_configs) {
3938 print OUT "$save_configs{$config}\n";
3941 run_command "mv $temp_config $ignore_config" or
3942 dodie "failed to copy update to $ignore_config";
3946 # We booted without this config, remove it from the minconfigs.
3947 doprint "$config is not needed, disabling\n";
3949 delete $min_configs{$config};
3951 # Also disable anything that is not enabled in this config
3953 assign_configs \%configs, $output_config;
3954 my @config_keys = keys %min_configs;
3955 foreach my $config (@config_keys) {
3956 if (!defined($configs{$config})) {
3957 doprint "$config is not set, disabling\n";
3958 delete $min_configs{$config};
3962 # Save off all the current mandidory configs
3963 open (OUT, ">$temp_config")
3964 or die "Can't write to $temp_config";
3965 foreach my $config (keys %keep_configs) {
3966 print OUT "$keep_configs{$config}\n";
3968 foreach my $config (keys %min_configs) {
3969 print OUT "$min_configs{$config}\n";
3973 run_command "mv $temp_config $output_minconfig" or
3974 dodie "failed to copy update to $output_minconfig";
3977 doprint "Reboot and wait $sleep_time seconds\n";
3978 reboot_to_good $sleep_time;
3985 sub make_warnings_file {
3988 if (!defined($warnings_file)) {
3989 dodie "Must define WARNINGS_FILE for make_warnings_file test";
3992 if ($build_type eq "nobuild") {
3993 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
3996 build $build_type or dodie "Failed to build";
3998 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4000 open(IN, $buildlog) or dodie "Can't open $buildlog";
4003 # Some compilers use UTF-8 extended for quotes
4004 # for distcc heterogeneous systems, this causes issues
4007 if (/$check_build_re/) {
4018 $#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4021 $ktest_config = $ARGV[0];
4022 if (! -f $ktest_config) {
4023 print "$ktest_config does not exist.\n";
4024 if (!read_yn "Create it?") {
4030 if (! -f $ktest_config) {
4033 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4035 # Generated by ktest.pl
4038 # PWD is a ktest.pl variable that will result in the process working
4039 # directory that ktest.pl is executed in.
4041 # THIS_DIR is automatically assigned the PWD of the path that generated
4042 # the config file. It is best to use this variable when assigning other
4043 # directory paths within this directory. This allows you to easily
4044 # move the test cases to other locations or to other machines.
4046 THIS_DIR := $variable{"PWD"}
4048 # Define each test with TEST_START
4049 # The config options below it will override the defaults
4051 TEST_TYPE = $default{"TEST_TYPE"}
4058 read_config $ktest_config;
4060 if (defined($opt{"LOG_FILE"})) {
4061 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4064 # Append any configs entered in manually to the config file.
4065 my @new_configs = keys %entered_configs;
4066 if ($#new_configs >= 0) {
4067 print "\nAppending entered in configs to $ktest_config\n";
4068 open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
4069 foreach my $config (@new_configs) {
4070 print OUT "$config = $entered_configs{$config}\n";
4071 $opt{$config} = process_variables($entered_configs{$config});
4075 if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4076 unlink $opt{"LOG_FILE"};
4079 doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4081 for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4084 doprint "DEFAULT OPTIONS:\n";
4086 doprint "\nTEST $i OPTIONS";
4087 if (defined($repeat_tests{$i})) {
4088 $repeat = $repeat_tests{$i};
4089 doprint " ITERATE $repeat";
4094 foreach my $option (sort keys %opt) {
4096 if ($option =~ /\[(\d+)\]$/) {
4102 doprint "$option = $opt{$option}\n";
4106 sub option_defined {
4109 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4116 sub __set_test_option {
4117 my ($name, $i) = @_;
4119 my $option = "$name\[$i\]";
4121 if (option_defined($option)) {
4122 return $opt{$option};
4125 foreach my $test (keys %repeat_tests) {
4127 $i < $test + $repeat_tests{$test}) {
4128 $option = "$name\[$test\]";
4129 if (option_defined($option)) {
4130 return $opt{$option};
4135 if (option_defined($name)) {
4142 sub set_test_option {
4143 my ($name, $i) = @_;
4145 my $option = __set_test_option($name, $i);
4146 return $option if (!defined($option));
4148 return eval_option($name, $option, $i);
4151 # First we need to do is the builds
4152 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4154 # Do not reboot on failing test options
4156 $reboot_success = 0;
4167 undef %force_config;
4169 my $makecmd = set_test_option("MAKE_CMD", $i);
4171 $outputdir = set_test_option("OUTPUT_DIR", $i);
4172 $builddir = set_test_option("BUILD_DIR", $i);
4174 chdir $builddir || die "can't change directory to $builddir";
4176 if (!-d $outputdir) {
4177 mkpath($outputdir) or
4178 die "can't create $outputdir";
4181 $make = "$makecmd O=$outputdir";
4183 # Load all the options into their mapped variable names
4184 foreach my $opt (keys %option_map) {
4185 ${$option_map{$opt}} = set_test_option($opt, $i);
4188 $start_minconfig_defined = 1;
4190 # The first test may override the PRE_KTEST option
4191 if (defined($pre_ktest) && $i == 1) {
4193 run_command $pre_ktest;
4196 # Any test can override the POST_KTEST option
4197 # The last test takes precedence.
4198 if (defined($post_ktest)) {
4199 $final_post_ktest = $post_ktest;
4202 if (!defined($start_minconfig)) {
4203 $start_minconfig_defined = 0;
4204 $start_minconfig = $minconfig;
4209 die "can't create $tmpdir";
4212 $ENV{"SSH_USER"} = $ssh_user;
4213 $ENV{"MACHINE"} = $machine;
4215 $buildlog = "$tmpdir/buildlog-$machine";
4216 $testlog = "$tmpdir/testlog-$machine";
4217 $dmesg = "$tmpdir/dmesg-$machine";
4218 $output_config = "$outputdir/.config";
4221 $target = "$ssh_user\@$machine";
4222 if ($reboot_type eq "grub") {
4223 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4224 } elsif ($reboot_type eq "grub2") {
4225 dodie "GRUB_MENU not defined" if (!defined($grub_menu));
4226 dodie "GRUB_FILE not defined" if (!defined($grub_file));
4227 } elsif ($reboot_type eq "syslinux") {
4228 dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
4232 my $run_type = $build_type;
4233 if ($test_type eq "patchcheck") {
4234 $run_type = $patchcheck_type;
4235 } elsif ($test_type eq "bisect") {
4236 $run_type = $bisect_type;
4237 } elsif ($test_type eq "config_bisect") {
4238 $run_type = $config_bisect_type;
4239 } elsif ($test_type eq "make_min_config") {
4241 } elsif ($test_type eq "make_warnings_file") {
4245 # mistake in config file?
4246 if (!defined($run_type)) {
4247 $run_type = "ERROR";
4251 $installme = " no_install" if ($no_install);
4255 if (defined($test_name)) {
4256 $name = " ($test_name)";
4260 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4262 if (defined($pre_test)) {
4263 run_command $pre_test;
4270 if (defined($addconfig)) {
4271 my $min = $minconfig;
4272 if (!defined($minconfig)) {
4275 run_command "cat $addconfig $min > $tmpdir/add_config" or
4276 dodie "Failed to create temp config";
4277 $minconfig = "$tmpdir/add_config";
4280 if (defined($checkout)) {
4281 run_command "git checkout $checkout" or
4282 die "failed to checkout $checkout";
4287 # A test may opt to not reboot the box
4288 if ($reboot_on_success) {
4289 $reboot_success = 1;
4292 if ($test_type eq "bisect") {
4295 } elsif ($test_type eq "config_bisect") {
4298 } elsif ($test_type eq "patchcheck") {
4301 } elsif ($test_type eq "make_min_config") {
4304 } elsif ($test_type eq "make_warnings_file") {
4306 make_warnings_file $i;
4310 if ($build_type ne "nobuild") {
4311 build $build_type or next;
4312 check_buildlog or next;
4315 if ($test_type eq "install") {
4322 if ($test_type ne "build") {
4324 start_monitor_and_install or $failed = 1;
4326 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4327 do_run_test or $failed = 1;
4341 if (defined($final_post_ktest)) {
4342 run_command $final_post_ktest;
4345 if ($opt{"POWEROFF_ON_SUCCESS"}) {
4347 } elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4349 } elsif (defined($switch_to_good)) {
4350 # still need to get to the good kernel
4351 run_command $switch_to_good;
4355 doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";