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";
1411 # restore terminal settings
1412 system("stty $stty_orig");
1419 my ($ptm, $pts) = @_;
1421 my $TIOCSPTLCK = 0x40045431;
1422 my $TIOCGPTN = 0x80045430;
1424 sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
1425 dodie "Cant open /dev/ptmx";
1428 $tmp = pack("i", 0);
1429 ioctl($ptm, $TIOCSPTLCK, $tmp) or
1430 dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
1433 ioctl($ptm, $TIOCGPTN, $tmp) or
1434 dodie "ioctl TIOCGPTN for /dev/ptmx failed";
1435 $tmp = unpack("i", $tmp);
1437 sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
1438 dodie "Can't open /dev/pts/$tmp";
1442 my ($ptm, $pts) = @_;
1450 open(\*STDIN, '<&', $pts);
1451 open(\*STDOUT, '>&', $pts);
1452 open(\*STDERR, '>&', $pts);
1457 die "Can't open console $console";
1465 # save terminal settings
1466 $stty_orig = `stty -g`;
1468 # place terminal in cbreak mode so that stdin can be read one character at
1469 # a time without having to wait for a newline
1470 system("stty -icanon -echo -icrnl");
1472 create_pty($ptm, $pts);
1478 exec_console($ptm, $pts)
1486 open(PTSFD, "Stop perl from warning about single use of PTSFD");
1490 my ($fp, $pid) = @_;
1492 doprint "kill child process $pid\n";
1493 kill $close_console_signal, $pid;
1498 # restore terminal settings
1499 system("stty $stty_orig");
1503 if ($monitor_cnt++) {
1506 $monitor_fp = \*MONFD;
1507 $monitor_pid = open_console $monitor_fp;
1511 open(MONFD, "Stop perl from warning about single use of MONFD");
1515 return if (!defined $console);
1516 if (--$monitor_cnt) {
1519 close_console($monitor_fp, $monitor_pid);
1522 sub wait_for_monitor {
1523 my ($time, $stop) = @_;
1527 my $start_time = time;
1528 my $skip_call_trace = 0;
1530 my $bug_ignored = 0;
1533 doprint "** Wait for monitor to settle down **\n";
1535 # read the monitor and wait for the system to calm down
1537 $line = wait_for_input($monitor_fp, $time);
1538 last if (!defined($line));
1540 $full_line .= $line;
1542 if (defined($stop) && $full_line =~ /$stop/) {
1543 doprint "wait for monitor detected $stop\n";
1547 if ($full_line =~ /\[ backtrace testing \]/) {
1548 $skip_call_trace = 1;
1551 if ($full_line =~ /call trace:/i) {
1552 if (!$bug && !$skip_call_trace) {
1553 if ($ignore_errors) {
1561 if ($full_line =~ /\[ end of backtrace testing \]/) {
1562 $skip_call_trace = 0;
1565 if ($full_line =~ /Kernel panic -/) {
1569 if ($line =~ /\n/) {
1573 if ($now - $start_time >= $max_monitor_wait) {
1574 doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
1578 print "** Monitor flushed **\n";
1580 # if stop is defined but wasn't hit, return error
1581 # used by reboot (which wants to see a reboot)
1582 if (defined($stop) && !$booted) {
1589 my ($result, $basedir) = @_;
1591 my $date = sprintf "%04d%02d%02d%02d%02d%02d",
1592 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
1594 my $type = $build_type;
1595 if ($type =~ /useconfig/) {
1596 $type = "useconfig";
1599 my $dir = "$machine-$test_type-$type-$result-$date";
1601 $dir = "$basedir/$dir";
1605 die "can't create $dir";
1609 "config" => $output_config,
1610 "buildlog" => $buildlog,
1612 "testlog" => $testlog,
1615 while (my ($name, $source) = each(%files)) {
1617 cp "$source", "$dir/$name" or
1618 die "failed to copy $source";
1622 doprint "*** Saved info to $dir ***\n";
1627 if (defined($post_test)) {
1628 run_command $post_test;
1631 if ($die_on_failure) {
1639 # no need to reboot for just building.
1640 if (!do_not_reboot) {
1641 doprint "REBOOTING\n";
1642 reboot_to_good $sleep_time;
1647 if (defined($test_name)) {
1648 $name = " ($test_name)";
1653 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1654 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1655 doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
1656 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1657 doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
1659 if (defined($store_failures)) {
1660 save_logs "fail", $store_failures;
1667 my ($command, $redirect) = @_;
1676 $command =~ s/\$SSH_USER/$ssh_user/g;
1677 $command =~ s/\$MACHINE/$machine/g;
1679 doprint("$command ... ");
1681 $pid = open(CMD, "$command 2>&1 |") or
1682 (fail "unable to exec $command" and return 0);
1684 if (defined($opt{"LOG_FILE"})) {
1685 open(LOG, ">>$opt{LOG_FILE}") or
1686 dodie "failed to write to log";
1690 if (defined($redirect)) {
1691 open (RD, ">$redirect") or
1692 dodie "failed to write to redirect $redirect";
1697 print LOG if ($dolog);
1698 print RD if ($dord);
1705 close(LOG) if ($dolog);
1706 close(RD) if ($dord);
1709 my $delta = $end_time - $start_time;
1712 doprint "[1 second] ";
1714 doprint "[$delta seconds] ";
1718 doprint "FAILED!\n";
1720 doprint "SUCCESS\n";
1728 my $cp_exec = $ssh_exec;
1730 $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
1731 return run_command "$cp_exec";
1735 my ($src, $dst, $cp_scp) = @_;
1737 $cp_scp =~ s/\$SRC_FILE/$src/g;
1738 $cp_scp =~ s/\$DST_FILE/$dst/g;
1740 return run_command "$cp_scp";
1743 sub run_scp_install {
1744 my ($src, $dst) = @_;
1746 my $cp_scp = $scp_to_target_install;
1748 return run_scp($src, $dst, $cp_scp);
1752 my ($src, $dst) = @_;
1754 my $cp_scp = $scp_to_target;
1756 return run_scp($src, $dst, $cp_scp);
1759 sub get_grub2_index {
1761 return if (defined($grub_number) && defined($last_grub_menu) &&
1762 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1763 $last_machine eq $machine);
1765 doprint "Find grub2 menu ... ";
1768 my $ssh_grub = $ssh_exec;
1769 $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
1771 open(IN, "$ssh_grub |")
1772 or die "unable to get $grub_file";
1777 if (/^menuentry.*$grub_menu/) {
1781 } elsif (/^menuentry\s/) {
1787 die "Could not find '$grub_menu' in $grub_file on $machine"
1789 doprint "$grub_number\n";
1790 $last_grub_menu = $grub_menu;
1791 $last_machine = $machine;
1794 sub get_grub_index {
1796 if ($reboot_type eq "grub2") {
1801 if ($reboot_type ne "grub") {
1804 return if (defined($grub_number) && defined($last_grub_menu) &&
1805 $last_grub_menu eq $grub_menu && defined($last_machine) &&
1806 $last_machine eq $machine);
1808 doprint "Find grub menu ... ";
1811 my $ssh_grub = $ssh_exec;
1812 $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
1814 open(IN, "$ssh_grub |")
1815 or die "unable to get menu.lst";
1820 if (/^\s*title\s+$grub_menu\s*$/) {
1824 } elsif (/^\s*title\s/) {
1830 die "Could not find '$grub_menu' in /boot/grub/menu on $machine"
1832 doprint "$grub_number\n";
1833 $last_grub_menu = $grub_menu;
1834 $last_machine = $machine;
1839 my ($fp, $time) = @_;
1847 if (!defined($time)) {
1852 vec($rin, fileno($fp), 1) = 1;
1853 vec($rin, fileno(\*STDIN), 1) = 1;
1856 $nr = select($rout=$rin, undef, undef, $time);
1862 # copy data from stdin to the console
1863 if (vec($rout, fileno(\*STDIN), 1) == 1) {
1864 sysread(\*STDIN, $buf, 1000);
1865 syswrite($fp, $buf, 1000);
1871 # try to read one char at a time
1872 while (sysread $fp, $ch, 1) {
1874 last if ($ch eq "\n");
1877 if (!length($line)) {
1886 if (defined($switch_to_test)) {
1887 run_command $switch_to_test;
1890 if ($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";
1905 doprint "git rev-list --max-count=1 $commit ... ";
1906 my $sha1 = `git rev-list --max-count=1 $commit`;
1913 dodie "Failed to get git $commit";
1926 my $bug_ignored = 0;
1927 my $skip_call_trace = 0;
1930 my $start_time = time;
1937 open(DMESG, "> $dmesg") or
1938 die "unable to write to $dmesg";
1944 my $monitor_start = time;
1946 my $version_found = 0;
1950 if ($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";
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";
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";
1978 # we are not guaranteed to get a full line
1979 $full_line .= $line;
1981 if ($full_line =~ /$success_line/) {
1983 $success_start = time;
1986 if ($booted && defined($stop_after_success) &&
1987 $stop_after_success >= 0) {
1989 if ($now - $success_start >= $stop_after_success) {
1990 doprint "Test forced to stop after $stop_after_success seconds after success\n";
1995 if ($full_line =~ /\[ backtrace testing \]/) {
1996 $skip_call_trace = 1;
1999 if ($full_line =~ /call trace:/i) {
2000 if (!$bug && !$skip_call_trace) {
2001 if ($ignore_errors) {
2005 $failure_start = time;
2010 if ($bug && defined($stop_after_failure) &&
2011 $stop_after_failure >= 0) {
2013 if ($now - $failure_start >= $stop_after_failure) {
2014 doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
2019 if ($full_line =~ /\[ end of backtrace testing \]/) {
2020 $skip_call_trace = 0;
2023 if ($full_line =~ /Kernel panic -/) {
2024 $failure_start = time;
2028 # Detect triple faults by testing the banner
2029 if ($full_line =~ /\bLinux version (\S+).*\n/) {
2030 if ($1 eq $version) {
2032 } elsif ($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 $1.\n";
2038 doprint "Assuming that this is a triple fault.\n";
2039 doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n";
2044 if ($line =~ /\n/) {
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";
2056 my $end_time = time;
2057 $reboot_time = $end_time - $start_time;
2062 return 0 if ($in_bisect);
2063 fail "failed - got a bug report" and return 0;
2067 return 0 if ($in_bisect);
2068 fail "failed - never got a boot prompt." and return 0;
2072 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2078 sub eval_kernel_version {
2081 $option =~ s/\$KERNEL_VERSION/$version/g;
2086 sub do_post_install {
2088 return if (!defined($post_install));
2090 my $cp_post_install = eval_kernel_version $post_install;
2091 run_command "$cp_post_install" or
2092 dodie "Failed to run post install";
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.
2098 if (!run_ssh "echo testing connection") {
2105 return if ($no_install);
2107 my $start_time = time;
2109 if (defined($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";
2115 my $cp_target = eval_kernel_version $target_image;
2119 run_scp_install "$outputdir/$build_target", "$cp_target" or
2120 dodie "failed to copy image";
2122 my $install_mods = 0;
2124 # should we process modules?
2126 open(IN, "$output_config") or dodie("Can't read config file");
2128 if (/CONFIG_MODULES(=y)?/) {
2137 if (!$install_mods) {
2139 doprint "No modules needed\n";
2140 my $end_time = time;
2141 $install_time = $end_time - $start_time;
2145 run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
2146 dodie "Failed to install modules";
2148 my $modlib = "/lib/modules/$version";
2149 my $modtar = "ktest-mods.tar.bz2";
2151 run_ssh "rm -rf $modlib" or
2152 dodie "failed to remove old mods: $modlib";
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";
2158 run_scp_mod "$tmpdir/$modtar", "/tmp" or
2159 dodie "failed to copy modules";
2161 unlink "$tmpdir/$modtar";
2163 run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
2164 dodie "failed to tar modules";
2166 run_ssh "rm -f /tmp/$modtar";
2170 my $end_time = time;
2171 $install_time = $end_time - $start_time;
2175 # get the release name
2176 return if ($have_version);
2177 doprint "$make kernelrelease ... ";
2178 $version = `$make -s kernelrelease | tail -1`;
2180 doprint "$version\n";
2184 sub start_monitor_and_install {
2185 # Make sure the stable kernel has finished booting
2187 # Install bisects, don't need console
2188 if (defined $console) {
2198 start_monitor if (defined $console);
2202 my $check_build_re = ".*:.*(warning|error|Error):.*";
2203 my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
2205 sub process_warning_line {
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.
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/;
2220 # Some compilers use UTF-8 extended for quotes and some don't.
2221 $line =~ s/$utf8_quote/'/g;
2226 # Read buildlog and check against warnings file for any
2231 sub check_buildlog {
2232 return 1 if (!defined $warnings_file);
2236 # Failed builds should not reboot the target
2237 my $save_no_reboot = $no_reboot;
2240 if (-f $warnings_file) {
2241 open(IN, $warnings_file) or
2242 dodie "Error opening $warnings_file";
2245 if (/$check_build_re/) {
2246 my $warning = process_warning_line $_;
2248 $warnings_list{$warning} = 1;
2254 # If warnings file didn't exist, and WARNINGS_FILE exist,
2255 # then we fail on any warning!
2257 open(IN, $buildlog) or dodie "Can't open $buildlog";
2259 if (/$check_build_re/) {
2260 my $warning = process_warning_line $_;
2262 if (!defined $warnings_list{$warning}) {
2263 fail "New warning found (not in $warnings_file)\n$_\n";
2264 $no_reboot = $save_no_reboot;
2269 $no_reboot = $save_no_reboot;
2273 sub check_patch_buildlog {
2276 my @files = `git show $patch | diffstat -l`;
2278 foreach my $file (@files) {
2282 open(IN, "git show $patch |") or
2283 dodie "failed to show $patch";
2285 if (m,^--- a/(.*),) {
2287 $files[$#files] = $1;
2292 open(IN, $buildlog) or dodie "Can't open $buildlog";
2294 if (/^\s*(.*?):.*(warning|error)/) {
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;
2309 sub apply_min_config {
2310 my $outconfig = "$output_config.new";
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.
2316 doprint "Applying minimum configurations into $output_config.new\n";
2318 open (OUT, ">$outconfig") or
2319 dodie "Can't create $outconfig";
2321 if (-f $output_config) {
2322 open (IN, $output_config) or
2323 dodie "Failed to open $output_config";
2325 if (/^(# )?(CONFIG_[^\s=]*)/) {
2326 next if (defined($force_config{$2}));
2332 foreach my $config (keys %force_config) {
2333 print OUT "$force_config{$config}\n";
2337 run_command "mv $outconfig $output_config";
2340 sub make_oldconfig {
2342 my @force_list = keys %force_config;
2344 if ($#force_list >= 0) {
2348 if (!run_command "$make olddefconfig") {
2349 # Perhaps olddefconfig doesn't exist in this version of the kernel
2351 doprint "olddefconfig failed, trying make oldnoconfig\n";
2352 if (!run_command "$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";
2361 # read a config file and use this to force new configs.
2362 sub load_force_config {
2365 doprint "Loading force configs from $config\n";
2366 open(IN, $config) or
2367 dodie "failed to read $config";
2370 if (/^(CONFIG[^\s=]*)(\s*=.*)/) {
2371 $force_config{$1} = $_;
2372 } elsif (/^# (CONFIG_\S*) is not set/) {
2373 $force_config{$1} = $_;
2384 my $start_time = time;
2386 # Failed builds should not reboot the target
2387 my $save_no_reboot = $no_reboot;
2390 # Calculate a new version from here.
2393 if (defined($pre_build)) {
2394 my $ret = run_command $pre_build;
2395 if (!$ret && defined($pre_build_die) &&
2397 dodie "failed to pre_build\n";
2401 if ($type =~ /^useconfig:(.*)/) {
2402 run_command "cp $1 $output_config" or
2403 dodie "could not copy $1 to .config";
2405 $type = "oldconfig";
2408 # old config can ask questions
2409 if ($type eq "oldconfig") {
2410 $type = "olddefconfig";
2412 # allow for empty configs
2413 run_command "touch $output_config";
2416 run_command "mv $output_config $outputdir/config_temp" or
2417 dodie "moving .config";
2419 run_command "$make mrproper" or dodie "make mrproper";
2421 run_command "mv $outputdir/config_temp $output_config" or
2422 dodie "moving config_temp";
2425 } elsif (!$noclean) {
2426 unlink "$output_config";
2427 run_command "$make mrproper" or
2428 dodie "make mrproper";
2431 # add something to distinguish this build
2432 open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
2433 print OUT "$localversion\n";
2436 if (defined($minconfig)) {
2437 load_force_config($minconfig);
2440 if ($type ne "olddefconfig") {
2441 run_command "$make $type" or
2442 dodie "failed make config";
2444 # Run old config regardless, to enforce min configurations
2447 my $build_ret = run_command "$make $build_options", $buildlog;
2449 if (defined($post_build)) {
2450 # Because a post build may change the kernel version
2453 my $ret = run_command $post_build;
2454 if (!$ret && defined($post_build_die) &&
2456 dodie "failed to post_build\n";
2461 # bisect may need this to pass
2463 $no_reboot = $save_no_reboot;
2466 fail "failed build" and return 0;
2469 $no_reboot = $save_no_reboot;
2471 my $end_time = time;
2472 $build_time = $end_time - $start_time;
2478 if (!run_ssh "halt" or defined($power_off)) {
2479 if (defined($poweroff_after_halt)) {
2480 sleep $poweroff_after_halt;
2481 run_command "$power_off";
2485 run_command "$power_off";
2492 if (defined($post_test)) {
2493 run_command $post_test;
2500 if (defined($test_name)) {
2501 $name = " ($test_name)";
2506 doprint "\n\n*******************************************\n";
2507 doprint "*******************************************\n";
2508 doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
2509 doprint "*******************************************\n";
2510 doprint "*******************************************\n";
2512 if (defined($store_successes)) {
2513 save_logs "success", $store_successes;
2516 if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
2517 doprint "Reboot and wait $sleep_time seconds\n";
2518 reboot_to_good $sleep_time;
2524 doprint "Pass, fail, or skip? [p/f/s]";
2527 if ($ans eq "p" || $ans eq "P") {
2529 } elsif ($ans eq "f" || $ans eq "F") {
2531 } elsif ($ans eq "s" || $ans eq "S") {
2534 print "Please answer 'p', 'f', or 's'\n";
2539 sub child_run_test {
2542 # child should have no power
2543 $reboot_on_error = 0;
2544 $poweroff_on_error = 0;
2545 $die_on_failure = 1;
2547 run_command $run_test, $testlog or $failed = 1;
2554 sub child_finished {
2564 my $bug_ignored = 0;
2566 my $start_time = time;
2570 doprint "run test $run_test\n";
2574 $SIG{CHLD} = qw(child_finished);
2578 child_run_test if (!$child_pid);
2583 $line = wait_for_input($monitor_fp, 1);
2584 if (defined($line)) {
2586 # we are not guaranteed to get a full line
2587 $full_line .= $line;
2590 if ($full_line =~ /call trace:/i) {
2591 if ($ignore_errors) {
2598 if ($full_line =~ /Kernel panic -/) {
2602 if ($line =~ /\n/) {
2606 } while (!$child_done && !$bug);
2608 if (!$bug && $bug_ignored) {
2609 doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
2613 my $failure_start = time;
2616 $line = wait_for_input($monitor_fp, 1);
2617 if (defined($line)) {
2621 if ($now - $failure_start >= $stop_after_failure) {
2624 } while (defined($line));
2626 doprint "Detected kernel crash!\n";
2627 # kill the child with extreme prejudice
2631 waitpid $child_pid, 0;
2634 my $end_time = time;
2635 $test_time = $end_time - $start_time;
2637 if (!$bug && $in_bisect) {
2638 if (defined($bisect_ret_good)) {
2639 if ($child_exit == $bisect_ret_good) {
2643 if (defined($bisect_ret_skip)) {
2644 if ($child_exit == $bisect_ret_skip) {
2648 if (defined($bisect_ret_abort)) {
2649 if ($child_exit == $bisect_ret_abort) {
2650 fail "test abort" and return -2;
2653 if (defined($bisect_ret_bad)) {
2654 if ($child_exit == $bisect_ret_skip) {
2658 if (defined($bisect_ret_default)) {
2659 if ($bisect_ret_default eq "good") {
2661 } elsif ($bisect_ret_default eq "bad") {
2663 } elsif ($bisect_ret_default eq "skip") {
2665 } elsif ($bisect_ret_default eq "abort") {
2668 fail "unknown default action: $bisect_ret_default"
2674 if ($bug || $child_exit) {
2675 return 0 if $in_bisect;
2676 fail "test failed" and return 0;
2681 sub run_git_bisect {
2684 doprint "$command ... ";
2686 my $output = `$command 2>&1`;
2693 dodie "Failed to git bisect";
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";
2704 # we already logged it, just print it now.
2712 doprint "Reboot and sleep $bisect_sleep_time seconds\n";
2713 reboot_to_good $bisect_sleep_time;
2716 # returns 1 on success, 0 on failure, -1 on skip
2717 sub run_bisect_test {
2718 my ($type, $buildtype) = @_;
2727 build $buildtype or $failed = 1;
2729 if ($type ne "build") {
2730 if ($failed && $bisect_skip) {
2734 dodie "Failed on build" if $failed;
2737 start_monitor_and_install or $failed = 1;
2739 if ($type ne "boot") {
2740 if ($failed && $bisect_skip) {
2746 dodie "Failed on boot" if $failed;
2748 do_run_test or $failed = 1;
2759 # reboot the box to a kernel we can ssh to
2760 if ($type ne "build") {
2770 my $buildtype = "oldconfig";
2772 # We should have a minconfig to use?
2773 if (defined($minconfig)) {
2774 $buildtype = "useconfig:$minconfig";
2777 # If the user sets bisect_tries to less than 1, then no tries
2781 # Still let the user manually decide that though.
2782 if ($bisect_tries < 1 && $bisect_manual) {
2783 $ret = answer_bisect;
2786 for (my $i = 0; $i < $bisect_tries; $i++) {
2787 if ($bisect_tries > 1) {
2789 doprint("Running bisect trial $t of $bisect_tries:\n");
2791 $ret = run_bisect_test $type, $buildtype;
2793 if ($bisect_manual) {
2794 $ret = answer_bisect;
2800 # Are we looking for where it worked, not failed?
2801 if ($reverse_bisect && $ret >= 0) {
2807 } elsif ($ret == 0) {
2809 } elsif ($bisect_skip) {
2810 doprint "HIT A BAD COMMIT ... SKIPPING\n";
2815 sub update_bisect_replay {
2816 my $tmp_log = "$tmpdir/ktest_bisect_log";
2817 run_command "git bisect log > $tmp_log" or
2818 die "can't create bisect log";
2827 die "BISECT_GOOD[$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));
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 = $bisect_files;
2838 if (defined($start_files)) {
2839 $start_files = " -- " . $start_files;
2844 # convert to true sha1's
2845 $good = get_sha1($good);
2846 $bad = get_sha1($bad);
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;
2852 $reverse_bisect = 0;
2855 # Can't have a test without having a test to run
2856 if ($type eq "test" && !defined($run_test)) {
2860 # Check if a bisect was running
2861 my $bisect_start_file = "$builddir/.git/BISECT_START";
2863 my $check = $bisect_check;
2864 my $do_check = defined($check) && $check ne "0";
2866 if ( -f $bisect_start_file ) {
2867 print "Bisect in progress found\n";
2869 print " If you say yes, then no checks of good or bad will be done\n";
2871 if (defined($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;
2878 } elsif (read_yn "read git log and continue?") {
2879 $replay = update_bisect_replay;
2887 my $head = get_sha1("HEAD");
2889 if ($check ne "good") {
2890 doprint "TESTING BISECT BAD [$bad]\n";
2891 run_command "git checkout $bad" or
2892 die "Failed to checkout $bad";
2894 $result = run_bisect $type;
2896 if ($result ne "bad") {
2897 fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
2901 if ($check ne "bad") {
2902 doprint "TESTING BISECT GOOD [$good]\n";
2903 run_command "git checkout $good" or
2904 die "Failed to checkout $good";
2906 $result = run_bisect $type;
2908 if ($result ne "good") {
2909 fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
2913 # checkout where we started
2914 run_command "git checkout $head" or
2915 die "Failed to checkout $head";
2918 run_command "git bisect start$start_files" or
2919 dodie "could not start bisect";
2921 if (defined($replay)) {
2922 run_command "git bisect replay $replay" or
2923 dodie "failed to run replay";
2926 run_command "git bisect good $good" or
2927 dodie "could not set bisect good to $good";
2929 run_git_bisect "git bisect bad $bad" or
2930 dodie "could not set bisect bad to $bad";
2934 if (defined($start)) {
2935 run_command "git checkout $start" or
2936 dodie "failed to checkout $start";
2941 $result = run_bisect $type;
2942 $test = run_git_bisect "git bisect $result";
2946 run_command "git bisect log" or
2947 dodie "could not capture git bisect log";
2949 run_command "git bisect reset" or
2950 dodie "could not reset git bisect";
2952 doprint "Bad commit was [$bisect_bad_commit]\n";
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.
2962 # config_set holds what all configs were set as.
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.
2970 # config_off_tmp holds a set of configs to turn off for now
2973 # config_list is the set of configs that are being tested
2979 sub assign_configs {
2980 my ($hash, $config) = @_;
2982 doprint "Reading configs from $config\n";
2985 or dodie "Failed to read $config";
2989 if (/^((CONFIG\S*)=.*)/) {
2991 } elsif (/^(# (CONFIG\S*) is not set)/) {
2999 sub process_config_ignore {
3002 assign_configs \%config_ignore, $config;
3005 sub get_dependencies {
3008 my $arr = $dependency{$config};
3009 if (!defined($arr)) {
3015 foreach my $dep (@{$arr}) {
3016 print "ADD DEP $dep\n";
3017 @deps = (@deps, get_dependencies $dep);
3024 my ($pc, $file) = @_;
3026 my %configs = %{$pc};
3028 doprint "Saving configs into $file\n";
3030 open(OUT, ">$file") or dodie "Can not write to $file";
3032 foreach my $config (keys %configs) {
3033 print OUT "$configs{$config}\n";
3039 my ($name, $pc) = @_;
3041 doprint "Creating old config from $name configs\n";
3043 save_config $pc, $output_config;
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.
3050 sub diff_config_vals {
3053 # crappy Perl way to pass in hashes.
3059 foreach my $item (keys %a) {
3060 if (defined($b{$item}) && $b{$item} ne $a{$item}) {
3061 $ret{$item} = $b{$item};
3068 # compare two config hashes and return the configs in B but not A
3074 # crappy Perl way to pass in hashes.
3078 foreach my $item (keys %b) {
3079 if (!defined($a{$item})) {
3080 $ret{$item} = $b{$item};
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
3091 sub compare_configs {
3096 # crappy Perl way to pass in hashes.
3100 foreach my $item (keys %b) {
3101 if (!defined($a{$item})) {
3104 if ($a{$item} ne $b{$item}) {
3109 foreach my $item (keys %a) {
3110 if (!defined($b{$item})) {
3118 sub run_config_bisect_test {
3121 my $ret = run_bisect_test $type, "oldconfig";
3123 if ($bisect_manual) {
3124 $ret = answer_bisect;
3130 sub process_failed {
3133 doprint "\n\n***************************************\n";
3134 doprint "Found bad config: $config\n";
3135 doprint "***************************************\n\n";
3138 # used for config bisecting
3142 sub process_new_config {
3143 my ($tc, $nc, $gc, $bc) = @_;
3145 my %tmp_config = %{$tc};
3146 my %good_configs = %{$gc};
3147 my %bad_configs = %{$bc};
3154 create_config "tmp_configs", \%tmp_config;
3155 assign_configs \%new_configs, $output_config;
3157 $ret = compare_configs \%new_configs, \%bad_configs;
3159 doprint "New config equals bad config, try next test\n";
3164 $ret = compare_configs \%new_configs, \%good_configs;
3166 doprint "New config equals good config, try next test\n";
3171 %{$nc} = %new_configs;
3176 sub run_config_bisect {
3177 my ($pgood, $pbad) = @_;
3179 my $type = $config_bisect_type;
3181 my %good_configs = %{$pgood};
3182 my %bad_configs = %{$pbad};
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;
3188 my @diff_arr = keys %diff_configs;
3189 my $len_diff = $#diff_arr + 1;
3191 my @b_arr = keys %b_configs;
3192 my $len_b = $#b_arr + 1;
3194 my @g_arr = keys %g_configs;
3195 my $len_g = $#g_arr + 1;
3201 # First, lets get it down to a single subset.
3202 # Is the problem with a difference in values?
3203 # Is the problem with a missing config?
3204 # Is the problem with a config that breaks things?
3206 # Enable all of one set and see if we get a new bad
3209 # first set the good config to the bad values.
3211 doprint "d=$len_diff g=$len_g b=$len_b\n";
3213 # first lets enable things in bad config that are enabled in good config
3215 if ($len_diff > 0) {
3216 if ($len_b > 0 || $len_g > 0) {
3217 my %tmp_config = %bad_configs;
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};
3224 $runtest = process_new_config \%tmp_config, \%new_configs,
3225 \%good_configs, \%bad_configs;
3229 if (!$runtest && $len_diff > 0) {
3231 if ($len_diff == 1) {
3232 process_failed $diff_arr[0];
3235 my %tmp_config = %bad_configs;
3237 my $half = int($#diff_arr / 2);
3238 my @tophalf = @diff_arr[0 .. $half];
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};
3246 $runtest = process_new_config \%tmp_config, \%new_configs,
3247 \%good_configs, \%bad_configs;
3250 my %tmp_config = %bad_configs;
3252 doprint "Try bottom half\n";
3254 my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
3256 foreach my $item (@bottomhalf) {
3257 $tmp_config{$item} = $good_configs{$item};
3260 $runtest = process_new_config \%tmp_config, \%new_configs,
3261 \%good_configs, \%bad_configs;
3266 $ret = run_config_bisect_test $type;
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;
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;
3283 fail "Hmm, need to do a mix match?\n";
3290 my $type = $config_bisect_type;
3293 $bad_config = $config_bisect;
3295 if (defined($config_bisect_good)) {
3296 $good_config = $config_bisect_good;
3297 } elsif (defined($minconfig)) {
3298 $good_config = $minconfig;
3300 doprint "No config specified, checking if defconfig works";
3301 $ret = run_bisect_test $type, "defconfig";
3303 fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
3306 $good_config = $output_config;
3309 # we don't want min configs to cause issues here.
3310 doprint "Disabling 'MIN_CONFIG' for this test\n";
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;
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;
3327 $good_config = "$tmpdir/good_config";
3328 $bad_config = "$tmpdir/bad_config";
3330 save_config \%good_configs, $good_config;
3331 save_config \%bad_configs, $bad_config;
3334 if (defined($config_bisect_check) && $config_bisect_check ne "0") {
3335 if ($config_bisect_check ne "good") {
3336 doprint "Testing bad config\n";
3338 $ret = run_bisect_test $type, "useconfig:$bad_config";
3340 fail "Bad config succeeded when expected to fail!";
3344 if ($config_bisect_check ne "bad") {
3345 doprint "Testing good config\n";
3347 $ret = run_bisect_test $type, "useconfig:$good_config";
3349 fail "Good config failed when expected to succeed!";
3356 $ret = run_config_bisect \%good_configs, \%bad_configs;
3360 return $ret if ($ret < 0);
3365 sub patchcheck_reboot {
3366 doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
3367 reboot_to_good $patchcheck_sleep_time;
3373 die "PATCHCHECK_START[$i] not defined\n"
3374 if (!defined($patchcheck_start));
3375 die "PATCHCHECK_TYPE[$i] not defined\n"
3376 if (!defined($patchcheck_type));
3378 my $start = $patchcheck_start;
3380 my $cherry = $patchcheck_cherry;
3381 if (!defined($cherry)) {
3386 if (defined($patchcheck_end)) {
3387 $end = $patchcheck_end;
3389 die "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
3392 # Get the true sha1's since we can use things like HEAD~3
3393 $start = get_sha1($start);
3394 $end = get_sha1($end);
3396 my $type = $patchcheck_type;
3398 # Can't have a test without having a test to run
3399 if ($type eq "test" && !defined($run_test)) {
3404 open (IN, "git cherry -v $start $end|") or
3405 dodie "could not get git list";
3407 open (IN, "git log --pretty=oneline $end|") or
3408 dodie "could not get git list";
3415 # git cherry adds a '+' we want to remove
3417 $list[$#list+1] = $_;
3418 last if (/^$start/);
3423 if ($list[$#list] !~ /^$start/) {
3424 fail "SHA1 $start not found";
3427 # go backwards in the list
3428 @list = reverse @list;
3431 doprint("Going to test the following commits:\n");
3432 foreach my $l (@list) {
3436 my $save_clean = $noclean;
3437 my %ignored_warnings;
3439 if (defined($ignore_warnings)) {
3440 foreach my $sha1 (split /\s+/, $ignore_warnings) {
3441 $ignored_warnings{$sha1} = 1;
3446 foreach my $item (@list) {
3448 $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
3450 doprint "\nProcessing commit \"$item\"\n\n";
3452 run_command "git checkout $sha1" or
3453 die "Failed to checkout $sha1";
3455 # only clean on the first and last patch
3456 if ($item eq $list[0] ||
3457 $item eq $list[$#list]) {
3458 $noclean = $save_clean;
3463 if (defined($minconfig)) {
3464 build "useconfig:$minconfig" or return 0;
3466 # ?? no config to use?
3467 build "oldconfig" or return 0;
3470 # No need to do per patch checking if warnings file exists
3471 if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
3472 check_patch_buildlog $sha1 or return 0;
3475 check_buildlog or return 0;
3477 next if ($type eq "build");
3481 start_monitor_and_install or $failed = 1;
3483 if (!$failed && $type ne "boot"){
3484 do_run_test or $failed = 1;
3509 # $config depends on $dep
3510 my ($config, $dep) = @_;
3512 if (defined($depends{$config})) {
3513 $depends{$config} .= " " . $dep;
3515 $depends{$config} = $dep;
3518 # record the number of configs depending on $dep
3519 if (defined $depcount{$dep}) {
3522 $depcount{$dep} = 1;
3526 # taken from streamline_config.pl
3538 if (! -f $kconfig) {
3539 doprint "file $kconfig does not exist, skipping\n";
3543 open(KIN, "$kconfig")
3544 or die "Can't open $kconfig";
3548 # Make sure that lines ending with \ continue
3550 $_ = $line . " " . $_;
3561 # collect any Kconfig sources
3562 if (/^source\s*"(.*)"/) {
3563 $kconfigs[$#kconfigs+1] = $1;
3567 if (/^\s*(menu)?config\s+(\S+)\s*$/) {
3571 for (my $i = 0; $i < $iflevel; $i++) {
3572 add_dep $config, $ifdeps[$i];
3575 # collect the depends for the config
3576 } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
3578 add_dep $config, $1;
3580 # Get the configs that select this config
3581 } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
3583 # selected by depends on config
3584 add_dep $1, $config;
3586 # Check for if statements
3587 } elsif (/^if\s+(.*\S)\s*$/) {
3589 # remove beginning and ending non text
3590 $deps =~ s/^[^a-zA-Z0-9_]*//;
3591 $deps =~ s/[^a-zA-Z0-9_]*$//;
3593 my @deps = split /[^a-zA-Z0-9_]+/, $deps;
3595 $ifdeps[$iflevel++] = join ':', @deps;
3597 } elsif (/^endif/) {
3599 $iflevel-- if ($iflevel);
3602 } elsif (/^\s*help\s*$/) {
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");
3618 # find out which arch this is by the kconfig file
3619 open (IN, $output_config)
3620 or dodie "Failed to read $output_config";
3623 if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) {
3630 if (!defined($arch)) {
3631 doprint "Could not find arch from config file\n";
3632 doprint "no dependencies used\n";
3636 # arch is really the subarch, we need to know
3637 # what directory to look at.
3638 if ($arch eq "i386" || $arch eq "x86_64") {
3640 } elsif ($arch =~ /^tile/) {
3644 my $kconfig = "$builddir/arch/$arch/Kconfig";
3646 if (! -f $kconfig && $arch =~ /\d$/) {
3648 # some subarchs have numbers, truncate them
3650 $kconfig = "$builddir/arch/$arch/Kconfig";
3651 if (! -f $kconfig) {
3652 doprint "No idea what arch dir $orig is for\n";
3653 doprint "no dependencies used\n";
3658 read_kconfig($kconfig);
3661 sub make_new_config {
3664 open (OUT, ">$output_config")
3665 or dodie "Failed to write $output_config";
3667 foreach my $config (@configs) {
3668 print OUT "$config\n";
3676 $config =~ s/CONFIG_//;
3684 my $kconfig = chomp_config $dep;
3686 $dep = $depends{"$kconfig"};
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.
3692 my $valid = "A-Za-z_0-9";
3696 while ($dep =~ /[$valid]/) {
3698 if ($dep =~ /^[^$valid]*([$valid]+)/) {
3699 my $conf = "CONFIG_" . $1;
3701 $configs[$#configs + 1] = $conf;
3703 $dep =~ s/^[^$valid]*[$valid]+//;
3705 die "this should never happen";
3715 my %processed_configs;
3716 my %nochange_config;
3718 sub test_this_config {
3723 # if we already processed this config, skip it
3724 if (defined($processed_configs{$config})) {
3727 $processed_configs{$config} = 1;
3729 # if this config failed during this round, skip it
3730 if (defined($nochange_config{$config})) {
3734 my $kconfig = chomp_config $config;
3736 # Test dependencies first
3737 if (defined($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)) {
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
3753 my %configs = %min_configs;
3754 delete $configs{$config};
3755 make_new_config ((values %configs), (values %keep_configs));
3758 assign_configs \%configs, $output_config;
3760 if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
3764 doprint "disabling config $config did not change .config\n";
3766 $nochange_config{$config} = 1;
3771 sub make_min_config {
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;
3780 if (!defined($output_minconfig)) {
3781 fail "OUTPUT_MIN_CONFIG not defined" and return;
3784 # If output_minconfig exists, and the start_minconfig
3785 # came from min_config, than ask if we should use
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 = $output_minconfig;
3793 } elsif ($use_output_minconfig > 0) {
3794 doprint "Using $output_minconfig as MIN_CONFIG\n";
3795 $start_minconfig = $output_minconfig;
3797 doprint "Set to still use MIN_CONFIG as starting point\n";
3801 if (!defined($start_minconfig)) {
3802 fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return;
3805 my $temp_config = "$tmpdir/temp_config";
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.
3811 my $save_minconfig = $minconfig;
3814 run_command "$make allnoconfig" or return 0;
3818 process_config_ignore $output_config;
3820 undef %save_configs;
3823 if (defined($ignore_config)) {
3824 # make sure the file exists
3825 `touch $ignore_config`;
3826 assign_configs \%save_configs, $ignore_config;
3829 %keep_configs = %save_configs;
3831 doprint "Load initial configs from $start_minconfig\n";
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;
3837 my @config_keys = keys %min_configs;
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;
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};
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
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};
3868 doprint "$config set by allnoconfig ... ignored\n";
3870 delete $min_configs{$config};
3882 # Now disable each config one by one and do a make oldconfig
3883 # till we find a config that changes our list.
3885 my @test_configs = keys %min_configs;
3887 # Sort keys by who is most dependent on
3888 @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
3891 # Put configs that did not modify the config at the end.
3893 for (my $i = 0; $i < $#test_configs; $i++) {
3894 if (!defined($nochange_config{$test_configs[0]})) {
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;
3904 # if every test config has failed to modify the .config file
3905 # in the past, then reset and start over.
3907 undef %nochange_config;
3910 undef %processed_configs;
3912 foreach my $config (@test_configs) {
3914 $found = test_this_config $config;
3916 last if (defined($found));
3918 # oh well, try another config
3921 if (!defined($found)) {
3922 # we could have failed due to the nochange_config hash
3923 # reset and try again
3925 undef %nochange_config;
3929 doprint "No more configs found that we can disable\n";
3937 doprint "Test with $config disabled\n";
3939 # set in_bisect to keep build and monitor from dieing
3943 build "oldconfig" or $failed = 1;
3945 start_monitor_and_install or $failed = 1;
3947 if ($type eq "test" && !$failed) {
3948 do_run_test or $failed = 1;
3957 doprint "$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};
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";
3971 run_command "mv $temp_config $ignore_config" or
3972 dodie "failed to copy update to $ignore_config";
3976 # We booted without this config, remove it from the minconfigs.
3977 doprint "$config is not needed, disabling\n";
3979 delete $min_configs{$config};
3981 # Also disable anything that is not enabled in this config
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};
3992 # Save off all the current mandidory 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";
3998 foreach my $config (keys %min_configs) {
3999 print OUT "$min_configs{$config}\n";
4003 run_command "mv $temp_config $output_minconfig" or
4004 dodie "failed to copy update to $output_minconfig";
4007 doprint "Reboot and wait $sleep_time seconds\n";
4008 reboot_to_good $sleep_time;
4015 sub make_warnings_file {
4018 if (!defined($warnings_file)) {
4019 dodie "Must define WARNINGS_FILE for make_warnings_file test";
4022 if ($build_type eq "nobuild") {
4023 dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
4026 build $build_type or dodie "Failed to build";
4028 open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
4030 open(IN, $buildlog) or dodie "Can't open $buildlog";
4033 # Some compilers use UTF-8 extended for quotes
4034 # for distcc heterogeneous systems, this causes issues
4037 if (/$check_build_re/) {
4048 $#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl [config-file]\n";
4051 $ktest_config = $ARGV[0];
4052 if (! -f $ktest_config) {
4053 print "$ktest_config does not exist.\n";
4054 if (!read_yn "Create it?") {
4060 if (! -f $ktest_config) {
4063 open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
4065 # Generated by ktest.pl
4068 # PWD is a ktest.pl variable that will result in the process working
4069 # directory that ktest.pl is executed in.
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.
4076 THIS_DIR := $variable{"PWD"}
4078 # Define each test with TEST_START
4079 # The config options below it will override the defaults
4081 TEST_TYPE = $default{"TEST_TYPE"}
4088 read_config $ktest_config;
4090 if (defined($opt{"LOG_FILE"})) {
4091 $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
4094 # Append any configs entered in manually to the config file.
4095 my @new_configs = keys %entered_configs;
4096 if ($#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});
4105 if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
4106 unlink $opt{"LOG_FILE"};
4109 doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
4111 for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
4114 doprint "DEFAULT OPTIONS:\n";
4116 doprint "\nTEST $i OPTIONS";
4117 if (defined($repeat_tests{$i})) {
4118 $repeat = $repeat_tests{$i};
4119 doprint " ITERATE $repeat";
4124 foreach my $option (sort keys %opt) {
4126 if ($option =~ /\[(\d+)\]$/) {
4132 doprint "$option = $opt{$option}\n";
4136 sub option_defined {
4139 if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
4146 sub __set_test_option {
4147 my ($name, $i) = @_;
4149 my $option = "$name\[$i\]";
4151 if (option_defined($option)) {
4152 return $opt{$option};
4155 foreach my $test (keys %repeat_tests) {
4157 $i < $test + $repeat_tests{$test}) {
4158 $option = "$name\[$test\]";
4159 if (option_defined($option)) {
4160 return $opt{$option};
4165 if (option_defined($name)) {
4172 sub set_test_option {
4173 my ($name, $i) = @_;
4175 my $option = __set_test_option($name, $i);
4176 return $option if (!defined($option));
4178 return eval_option($name, $option, $i);
4181 # First we need to do is the builds
4182 for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
4184 # Do not reboot on failing test options
4186 $reboot_success = 0;
4197 undef %force_config;
4199 my $makecmd = set_test_option("MAKE_CMD", $i);
4201 $outputdir = set_test_option("OUTPUT_DIR", $i);
4202 $builddir = set_test_option("BUILD_DIR", $i);
4204 chdir $builddir || die "can't change directory to $builddir";
4206 if (!-d $outputdir) {
4207 mkpath($outputdir) or
4208 die "can't create $outputdir";
4211 $make = "$makecmd O=$outputdir";
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);
4218 $start_minconfig_defined = 1;
4220 # The first test may override the PRE_KTEST option
4221 if (defined($pre_ktest) && $i == 1) {
4223 run_command $pre_ktest;
4226 # Any test can override the POST_KTEST option
4227 # The last test takes precedence.
4228 if (defined($post_ktest)) {
4229 $final_post_ktest = $post_ktest;
4232 if (!defined($start_minconfig)) {
4233 $start_minconfig_defined = 0;
4234 $start_minconfig = $minconfig;
4239 die "can't create $tmpdir";
4242 $ENV{"SSH_USER"} = $ssh_user;
4243 $ENV{"MACHINE"} = $machine;
4245 $buildlog = "$tmpdir/buildlog-$machine";
4246 $testlog = "$tmpdir/testlog-$machine";
4247 $dmesg = "$tmpdir/dmesg-$machine";
4248 $output_config = "$outputdir/.config";
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));
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") {
4271 } elsif ($test_type eq "make_warnings_file") {
4275 # mistake in config file?
4276 if (!defined($run_type)) {
4277 $run_type = "ERROR";
4281 $installme = " no_install" if ($no_install);
4285 if (defined($test_name)) {
4286 $name = " ($test_name)";
4290 doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
4292 if (defined($pre_test)) {
4293 run_command $pre_test;
4300 if (defined($addconfig)) {
4301 my $min = $minconfig;
4302 if (!defined($minconfig)) {
4305 run_command "cat $addconfig $min > $tmpdir/add_config" or
4306 dodie "Failed to create temp config";
4307 $minconfig = "$tmpdir/add_config";
4310 if (defined($checkout)) {
4311 run_command "git checkout $checkout" or
4312 die "failed to checkout $checkout";
4317 # A test may opt to not reboot the box
4318 if ($reboot_on_success) {
4319 $reboot_success = 1;
4322 if ($test_type eq "bisect") {
4325 } elsif ($test_type eq "config_bisect") {
4328 } elsif ($test_type eq "patchcheck") {
4331 } elsif ($test_type eq "make_min_config") {
4334 } elsif ($test_type eq "make_warnings_file") {
4336 make_warnings_file $i;
4340 if ($build_type ne "nobuild") {
4341 build $build_type or next;
4342 check_buildlog or next;
4345 if ($test_type eq "install") {
4352 if ($test_type ne "build") {
4354 start_monitor_and_install or $failed = 1;
4356 if (!$failed && $test_type ne "boot" && defined($run_test)) {
4357 do_run_test or $failed = 1;
4371 if (defined($final_post_ktest)) {
4372 run_command $final_post_ktest;
4375 if ($opt{"POWEROFF_ON_SUCCESS"}) {
4377 } elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
4379 } elsif (defined($switch_to_good)) {
4380 # still need to get to the good kernel
4381 run_command $switch_to_good;
4385 doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";