diff options
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/testing/ktest/ktest.pl | 970 | ||||
| -rw-r--r-- | tools/testing/ktest/sample.conf | 142 |
2 files changed, 963 insertions, 149 deletions
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl index cef28e6632b9..8d02ccb10c59 100755 --- a/tools/testing/ktest/ktest.pl +++ b/tools/testing/ktest/ktest.pl @@ -27,7 +27,7 @@ $default{"TEST_TYPE"} = "test"; $default{"BUILD_TYPE"} = "randconfig"; $default{"MAKE_CMD"} = "make"; $default{"TIMEOUT"} = 120; -$default{"TMP_DIR"} = "/tmp/ktest"; +$default{"TMP_DIR"} = "/tmp/ktest/\${MACHINE}"; $default{"SLEEP_TIME"} = 60; # sleep time between tests $default{"BUILD_NOCLEAN"} = 0; $default{"REBOOT_ON_ERROR"} = 0; @@ -41,6 +41,7 @@ $default{"CLEAR_LOG"} = 0; $default{"BISECT_MANUAL"} = 0; $default{"BISECT_SKIP"} = 1; $default{"SUCCESS_LINE"} = "login:"; +$default{"DETECT_TRIPLE_FAULT"} = 1; $default{"BOOTED_TIMEOUT"} = 1; $default{"DIE_ON_FAILURE"} = 1; $default{"SSH_EXEC"} = "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND"; @@ -62,6 +63,10 @@ my $output_config; my $test_type; my $build_type; my $build_options; +my $pre_build; +my $post_build; +my $pre_build_die; +my $post_build_die; my $reboot_type; my $reboot_script; my $power_cycle; @@ -81,12 +86,17 @@ my $make; my $post_install; my $noclean; my $minconfig; +my $start_minconfig; +my $start_minconfig_defined; +my $output_minconfig; +my $ignore_config; my $addconfig; my $in_bisect = 0; my $bisect_bad = ""; my $reverse_bisect; my $bisect_manual; my $bisect_skip; +my $config_bisect_good; my $in_patchcheck = 0; my $run_test; my $redirect; @@ -98,9 +108,12 @@ my $monitor_cnt = 0; my $sleep_time; my $bisect_sleep_time; my $patchcheck_sleep_time; +my $ignore_warnings; my $store_failures; +my $test_name; my $timeout; my $booted_timeout; +my $detect_triplefault; my $console; my $success_line; my $stop_after_success; @@ -115,6 +128,7 @@ my $successes = 0; my %entered_configs; my %config_help; my %variable; +my %force_config; $config_help{"MACHINE"} = << "EOF" The machine hostname that you will test. @@ -204,6 +218,26 @@ $config_help{"REBOOT_SCRIPT"} = << "EOF" EOF ; +sub read_yn { + my ($prompt) = @_; + + my $ans; + + for (;;) { + print "$prompt [Y/n] "; + $ans = <STDIN>; + chomp $ans; + if ($ans =~ /^\s*$/) { + $ans = "y"; + } + last if ($ans =~ /^y$/i || $ans =~ /^n$/i); + print "Please answer either 'y' or 'n'.\n"; + } + if ($ans !~ /^y$/i) { + return 0; + } + return 1; +} sub get_ktest_config { my ($config) = @_; @@ -335,6 +369,7 @@ sub read_config { my $num_tests_set = 0; my $skip = 0; my $rest; + my $test_case = 0; while (<IN>) { @@ -360,6 +395,7 @@ sub read_config { $rest = $1; $skip = 1; } else { + $test_case = 1; $skip = 0; } @@ -464,6 +500,15 @@ sub read_config { # make sure we have all mandatory configs get_ktest_configs; + # was a test specified? + if (!$test_case) { + print "No test case specified.\n"; + print "What test case would you like to run?\n"; + my $ans = <STDIN>; + chomp $ans; + $default{"TEST_TYPE"} = $ans; + } + # set any defaults foreach my $default (keys %default) { @@ -473,6 +518,69 @@ sub read_config { } } +sub __eval_option { + my ($option, $i) = @_; + + # Add space to evaluate the character before $ + $option = " $option"; + my $retval = ""; + + while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) { + my $start = $1; + my $var = $2; + my $end = $3; + + # Append beginning of line + $retval = "$retval$start"; + + # If the iteration option OPT[$i] exists, then use that. + # otherwise see if the default OPT (without [$i]) exists. + + my $o = "$var\[$i\]"; + + if (defined($opt{$o})) { + $o = $opt{$o}; + $retval = "$retval$o"; + } elsif (defined($opt{$var})) { + $o = $opt{$var}; + $retval = "$retval$o"; + } else { + $retval = "$retval\$\{$var\}"; + } + + $option = $end; + } + + $retval = "$retval$option"; + + $retval =~ s/^ //; + + return $retval; +} + +sub eval_option { + my ($option, $i) = @_; + + my $prev = ""; + + # Since an option can evaluate to another option, + # keep iterating until we do not evaluate any more + # options. + my $r = 0; + while ($prev ne $option) { + # Check for recursive evaluations. + # 100 deep should be more than enough. + if ($r++ > 100) { + die "Over 100 evaluations accurred with $option\n" . + "Check for recursive variables\n"; + } + $prev = $option; + $option = __eval_option($option, $i); + } + + return $option; +} + sub _logit { if (defined($opt{"LOG_FILE"})) { open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}"; @@ -617,9 +725,15 @@ sub fail { end_monitor; } + my $name = ""; + + if (defined($test_name)) { + $name = " ($test_name)"; + } + doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n"; doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n"; - doprint "KTEST RESULT: TEST $i Failed: ", @_, "\n"; + doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n"; doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n"; doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n"; @@ -836,17 +950,35 @@ sub monitor { my $failure_start; my $monitor_start = time; my $done = 0; + my $version_found = 0; while (!$done) { - if ($booted) { + if ($bug && defined($stop_after_failure) && + $stop_after_failure >= 0) { + my $time = $stop_after_failure - (time - $failure_start); + $line = wait_for_input($monitor_fp, $time); + if (!defined($line)) { + doprint "bug timed out after $booted_timeout seconds\n"; + doprint "Test forced to stop after $stop_after_failure seconds after failure\n"; + last; + } + } elsif ($booted) { $line = wait_for_input($monitor_fp, $booted_timeout); + if (!defined($line)) { + my $s = $booted_timeout == 1 ? "" : "s"; + doprint "Successful boot found: break after $booted_timeout second$s\n"; + last; + } } else { $line = wait_for_input($monitor_fp); + if (!defined($line)) { + my $s = $timeout == 1 ? "" : "s"; + doprint "Timed out after $timeout second$s\n"; + last; + } } - last if (!defined($line)); - doprint $line; print DMESG $line; @@ -896,6 +1028,22 @@ sub monitor { $bug = 1; } + # Detect triple faults by testing the banner + if ($full_line =~ /\bLinux version (\S+).*\n/) { + if ($1 eq $version) { + $version_found = 1; + } elsif ($version_found && $detect_triplefault) { + # We already booted into the kernel we are testing, + # but now we booted into another kernel? + # Consider this a triple fault. + doprint "Aleady booted in Linux kernel $version, but now\n"; + doprint "we booted into Linux kernel $1.\n"; + doprint "Assuming that this is a triple fault.\n"; + doprint "To disable this: set DETECT_TRIPLE_FAULT to 0\n"; + last; + } + } + if ($line =~ /\n/) { $full_line = ""; } @@ -923,6 +1071,16 @@ sub monitor { return 1; } +sub do_post_install { + + return if (!defined($post_install)); + + my $cp_post_install = $post_install; + $cp_post_install =~ s/\$KERNEL_VERSION/$version/g; + run_command "$cp_post_install" or + dodie "Failed to run post install"; +} + sub install { run_scp "$outputdir/$build_target", "$target_image" or @@ -942,6 +1100,7 @@ sub install { close(IN); if (!$install_mods) { + do_post_install; doprint "No modules needed\n"; return; } @@ -964,17 +1123,29 @@ sub install { unlink "$tmpdir/$modtar"; - run_ssh "'(cd / && tar xf /tmp/$modtar)'" or + run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or dodie "failed to tar modules"; run_ssh "rm -f /tmp/$modtar"; - return if (!defined($post_install)); + do_post_install; +} - my $cp_post_install = $post_install; - $cp_post_install =~ s/\$KERNEL_VERSION/$version/g; - run_command "$cp_post_install" or - dodie "Failed to run post install"; +sub get_version { + # get the release name + doprint "$make kernelrelease ... "; + $version = `$make kernelrelease | tail -1`; + chomp($version); + doprint "$version\n"; +} + +sub start_monitor_and_boot { + get_grub_index; + get_version; + install; + + start_monitor; + return monitor; } sub check_buildlog { @@ -1009,24 +1180,84 @@ sub check_buildlog { return 1; } +sub apply_min_config { + my $outconfig = "$output_config.new"; + + # Read the config file and remove anything that + # is in the force_config hash (from minconfig and others) + # then add the force config back. + + doprint "Applying minimum configurations into $output_config.new\n"; + + open (OUT, ">$outconfig") or + dodie "Can't create $outconfig"; + + if (-f $output_config) { + open (IN, $output_config) or + dodie "Failed to open $output_config"; + while (<IN>) { + if (/^(# )?(CONFIG_[^\s=]*)/) { + next if (defined($force_config{$2})); + } + print OUT; + } + close IN; + } + foreach my $config (keys %force_config) { + print OUT "$force_config{$config}\n"; + } + close OUT; + + run_command "mv $outconfig $output_config"; +} + sub make_oldconfig { - my ($defconfig) = @_; - if (!run_command "$defconfig $make oldnoconfig") { + my @force_list = keys %force_config; + + if ($#force_list >= 0) { + apply_min_config; + } + + if (!run_command "$make oldnoconfig") { # Perhaps oldnoconfig doesn't exist in this version of the kernel # try a yes '' | oldconfig doprint "oldnoconfig failed, trying yes '' | make oldconfig\n"; - run_command "yes '' | $defconfig $make oldconfig" or + run_command "yes '' | $make oldconfig" or dodie "failed make config oldconfig"; } } +# read a config file and use this to force new configs. +sub load_force_config { + my ($config) = @_; + + open(IN, $config) or + dodie "failed to read $config"; + while (<IN>) { + chomp; + if (/^(CONFIG[^\s=]*)(\s*=.*)/) { + $force_config{$1} = $_; + } elsif (/^# (CONFIG_\S*) is not set/) { + $force_config{$1} = $_; + } + } + close IN; +} + sub build { my ($type) = @_; - my $defconfig = ""; unlink $buildlog; + if (defined($pre_build)) { + my $ret = run_command $pre_build; + if (!$ret && defined($pre_build_die) && + $pre_build_die) { + dodie "failed to pre_build\n"; + } + } + if ($type =~ /^useconfig:(.*)/) { run_command "cp $1 $output_config" or dodie "could not copy $1 to .config"; @@ -1063,24 +1294,33 @@ sub build { close(OUT); if (defined($minconfig)) { - $defconfig = "KCONFIG_ALLCONFIG=$minconfig"; + load_force_config($minconfig); } - if ($type eq "oldnoconfig") { - make_oldconfig $defconfig; - } else { - run_command "$defconfig $make $type" or + if ($type ne "oldnoconfig") { + run_command "$make $type" or dodie "failed make config"; } + # Run old config regardless, to enforce min configurations + make_oldconfig; $redirect = "$buildlog"; - if (!run_command "$make $build_options") { - undef $redirect; + my $build_ret = run_command "$make $build_options"; + undef $redirect; + + if (defined($post_build)) { + my $ret = run_command $post_build; + if (!$ret && defined($post_build_die) && + $post_build_die) { + dodie "failed to post_build\n"; + } + } + + if (!$build_ret) { # bisect may need this to pass return 0 if ($in_bisect); fail "failed build" and return 0; } - undef $redirect; return 1; } @@ -1102,9 +1342,15 @@ sub success { $successes++; + my $name = ""; + + if (defined($test_name)) { + $name = " ($test_name)"; + } + doprint "\n\n*******************************************\n"; doprint "*******************************************\n"; - doprint "KTEST RESULT: TEST $i SUCCESS!!!! **\n"; + doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n"; doprint "*******************************************\n"; doprint "*******************************************\n"; @@ -1117,14 +1363,6 @@ sub success { } } -sub get_version { - # get the release name - doprint "$make kernelrelease ... "; - $version = `$make kernelrelease | tail -1`; - chomp($version); - doprint "$version\n"; -} - sub answer_bisect { for (;;) { doprint "Pass or fail? [p/f]"; @@ -1289,12 +1527,7 @@ sub run_bisect_test { dodie "Failed on build" if $failed; # Now boot the box - get_grub_index; - get_version; - install; - - start_monitor; - monitor or $failed = 1; + start_monitor_and_boot or $failed = 1; if ($type ne "boot") { if ($failed && $bisect_skip) { @@ -1473,21 +1706,27 @@ my %null_config; my %dependency; -sub process_config_ignore { - my ($config) = @_; +sub assign_configs { + my ($hash, $config) = @_; open (IN, $config) or dodie "Failed to read $config"; while (<IN>) { if (/^((CONFIG\S*)=.*)/) { - $config_ignore{$2} = $1; + ${$hash}{$2} = $1; } } close(IN); } +sub process_config_ignore { + my ($config) = @_; + + assign_configs \%config_ignore, $config; +} + sub read_current_config { my ($config_ref) = @_; @@ -1546,7 +1785,7 @@ sub create_config { close(OUT); # exit; - make_oldconfig ""; + make_oldconfig; } sub compare_configs { @@ -1718,6 +1957,10 @@ sub config_bisect { my $tmpconfig = "$tmpdir/use_config"; + if (defined($config_bisect_good)) { + process_config_ignore $config_bisect_good; + } + # Make the file with the bad config and the min config if (defined($minconfig)) { # read the min config for things to ignore @@ -1727,15 +1970,8 @@ sub config_bisect { unlink $tmpconfig; } - # Add other configs - if (defined($addconfig)) { - run_command "cat $addconfig >> $tmpconfig" or - dodie "failed to append $addconfig"; - } - - my $defconfig = ""; if (-f $tmpconfig) { - $defconfig = "KCONFIG_ALLCONFIG=$tmpconfig"; + load_force_config($tmpconfig); process_config_ignore $tmpconfig; } @@ -1755,8 +1991,8 @@ sub config_bisect { } close(IN); - # Now run oldconfig with the minconfig (and addconfigs) - make_oldconfig $defconfig; + # Now run oldconfig with the minconfig + make_oldconfig; # check to see what we lost (or gained) open (IN, $output_config) @@ -1882,6 +2118,13 @@ sub patchcheck { @list = reverse @list; my $save_clean = $noclean; + my %ignored_warnings; + + if (defined($ignore_warnings)) { + foreach my $sha1 (split /\s+/, $ignore_warnings) { + $ignored_warnings{$sha1} = 1; + } + } $in_patchcheck = 1; foreach my $item (@list) { @@ -1908,18 +2151,16 @@ sub patchcheck { build "oldconfig" or return 0; } - check_buildlog $sha1 or return 0; - next if ($type eq "build"); + if (!defined($ignored_warnings{$sha1})) { + check_buildlog $sha1 or return 0; + } - get_grub_index; - get_version; - install; + next if ($type eq "build"); my $failed = 0; - start_monitor; - monitor or $failed = 1; + start_monitor_and_boot or $failed = 1; if (!$failed && $type ne "boot"){ do_run_test or $failed = 1; @@ -1936,24 +2177,505 @@ sub patchcheck { return 1; } +my %depends; +my $iflevel = 0; +my @ifdeps; + +# prevent recursion +my %read_kconfigs; + +# taken from streamline_config.pl +sub read_kconfig { + my ($kconfig) = @_; + + my $state = "NONE"; + my $config; + my @kconfigs; + + my $cont = 0; + my $line; + + + if (! -f $kconfig) { + doprint "file $kconfig does not exist, skipping\n"; + return; + } + + open(KIN, "$kconfig") + or die "Can't open $kconfig"; + while (<KIN>) { + chomp; + + # Make sure that lines ending with \ continue + if ($cont) { + $_ = $line . " " . $_; + } + + if (s/\\$//) { + $cont = 1; + $line = $_; + next; + } + + $cont = 0; + + # collect any Kconfig sources + if (/^source\s*"(.*)"/) { + $kconfigs[$#kconfigs+1] = $1; + } + + # configs found + if (/^\s*(menu)?config\s+(\S+)\s*$/) { + $state = "NEW"; + $config = $2; + + for (my $i = 0; $i < $iflevel; $i++) { + if ($i) { + $depends{$config} .= " " . $ifdeps[$i]; + } else { + $depends{$config} = $ifdeps[$i]; + } + $state = "DEP"; + } + + # collect the depends for the config + } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) { + + if (defined($depends{$1})) { + $depends{$config} .= " " . $1; + } else { + $depends{$config} = $1; + } + + # Get the configs that select this config + } elsif ($state ne "NONE" && /^\s*select\s+(\S+)/) { + if (defined($depends{$1})) { + $depends{$1} .= " " . $config; + } else { + $depends{$1} = $config; + } + + # Check for if statements + } elsif (/^if\s+(.*\S)\s*$/) { + my $deps = $1; + # remove beginning and ending non text + $deps =~ s/^[^a-zA-Z0-9_]*//; + $deps =~ s/[^a-zA-Z0-9_]*$//; + + my @deps = split /[^a-zA-Z0-9_]+/, $deps; + + $ifdeps[$iflevel++] = join ':', @deps; + + } elsif (/^endif/) { + + $iflevel-- if ($iflevel); + + # stop on "help" + } elsif (/^\s*help\s*$/) { + $state = "NONE"; + } + } + close(KIN); + + # read in any configs that were found. + foreach $kconfig (@kconfigs) { + if (!defined($read_kconfigs{$kconfig})) { + $read_kconfigs{$kconfig} = 1; + read_kconfig("$builddir/$kconfig"); + } + } +} + +sub read_depends { + # find out which arch this is by the kconfig file + open (IN, $output_config) + or dodie "Failed to read $output_config"; + my $arch; + while (<IN>) { + if (m,Linux/(\S+)\s+\S+\s+Kernel Configuration,) { + $arch = $1; + last; + } + } + close IN; + + if (!defined($arch)) { + doprint "Could not find arch from config file\n"; + doprint "no dependencies used\n"; + return; + } + + # arch is really the subarch, we need to know + # what directory to look at. + if ($arch eq "i386" || $arch eq "x86_64") { + $arch = "x86"; + } elsif ($arch =~ /^tile/) { + $arch = "tile"; + } + + my $kconfig = "$builddir/arch/$arch/Kconfig"; + + if (! -f $kconfig && $arch =~ /\d$/) { + my $orig = $arch; + # some subarchs have numbers, truncate them + $arch =~ s/\d*$//; + $kconfig = "$builddir/arch/$arch/Kconfig"; + if (! -f $kconfig) { + doprint "No idea what arch dir $orig is for\n"; + doprint "no dependencies used\n"; + return; + } + } + + read_kconfig($kconfig); +} + +sub read_config_list { + my ($config) = @_; + + open (IN, $config) + or dodie "Failed to read $config"; + + while (<IN>) { + if (/^((CONFIG\S*)=.*)/) { + if (!defined($config_ignore{$2})) { + $config_list{$2} = $1; + } + } + } + + close(IN); +} + +sub read_output_config { + my ($config) = @_; + + assign_configs \%config_ignore, $config; +} + +sub make_new_config { + my @configs = @_; + + open (OUT, ">$output_config") + or dodie "Failed to write $output_config"; + + foreach my $config (@configs) { + print OUT "$config\n"; + } + close OUT; +} + +sub get_depends { + my ($dep) = @_; + + my $kconfig = $dep; + $kconfig =~ s/CONFIG_//; + + $dep = $depends{"$kconfig"}; + + # the dep string we have saves the dependencies as they + # were found, including expressions like ! && ||. We + # want to split this out into just an array of configs. + + my $valid = "A-Za-z_0-9"; + + my @configs; + + while ($dep =~ /[$valid]/) { + + if ($dep =~ /^[^$valid]*([$valid]+)/) { + my $conf = "CONFIG_" . $1; + + $configs[$#configs + 1] = $conf; + + $dep =~ s/^[^$valid]*[$valid]+//; + } else { + die "this should never happen"; + } + } + + return @configs; +} + +my %min_configs; +my %keep_configs; +my %save_configs; +my %processed_configs; +my %nochange_config; + +sub test_this_config { + my ($config) = @_; + + my $found; + + # if we already processed this config, skip it + if (defined($processed_configs{$config})) { + return undef; + } + $processed_configs{$config} = 1; + + # if this config failed during this round, skip it + if (defined($nochange_config{$config})) { + return undef; + } + + my $kconfig = $config; + $kconfig =~ s/CONFIG_//; + + # Test dependencies first + if (defined($depends{"$kconfig"})) { + my @parents = get_depends $config; + foreach my $parent (@parents) { + # if the parent is in the min config, check it first + next if (!defined($min_configs{$parent})); + $found = test_this_config($parent); + if (defined($found)) { + return $found; + } + } + } + + # Remove this config from the list of configs + # do a make oldnoconfig and then read the resulting + # .config to make sure it is missing the config that + # we had before + my %configs = %min_configs; + delete $configs{$config}; + make_new_config ((values %configs), (values %keep_configs)); + make_oldconfig; + undef %configs; + assign_configs \%configs, $output_config; + + return $config if (!defined($configs{$config})); + + doprint "disabling config $config did not change .config\n"; + + $nochange_config{$config} = 1; + + return undef; +} + +sub make_min_config { + my ($i) = @_; + + if (!defined($output_minconfig)) { + fail "OUTPUT_MIN_CONFIG not defined" and return; + } + + # If output_minconfig exists, and the start_minconfig + # came from min_config, than ask if we should use + # that instead. + if (-f $output_minconfig && !$start_minconfig_defined) { + print "$output_minconfig exists\n"; + if (read_yn " Use it as minconfig?") { + $start_minconfig = $output_minconfig; + } + } + + if (!defined($start_minconfig)) { + fail "START_MIN_CONFIG or MIN_CONFIG not defined" and return; + } + + my $temp_config = "$tmpdir/temp_config"; + + # First things first. We build an allnoconfig to find + # out what the defaults are that we can't touch. + # Some are selections, but we really can't handle selections. + + my $save_minconfig = $minconfig; + undef $minconfig; + + run_command "$make allnoconfig" or return 0; + + read_depends; + + process_config_ignore $output_config; + + undef %save_configs; + undef %min_configs; + + if (defined($ignore_config)) { + # make sure the file exists + `touch $ignore_config`; + assign_configs \%save_configs, $ignore_config; + } + + %keep_configs = %save_configs; + + doprint "Load initial configs from $start_minconfig\n"; + + # Look at the current min configs, and save off all the + # ones that were set via the allnoconfig + assign_configs \%min_configs, $start_minconfig; + + my @config_keys = keys %min_configs; + + # Remove anything that was set by the make allnoconfig + # we shouldn't need them as they get set for us anyway. + foreach my $config (@config_keys) { + # Remove anything in the ignore_config + if (defined($keep_configs{$config})) { + my $file = $ignore_config; + $file =~ s,.*/(.*?)$,$1,; + doprint "$config set by $file ... ignored\n"; + delete $min_configs{$config}; + next; + } + # But make sure the settings are the same. If a min config + # sets a selection, we do not want to get rid of it if + # it is not the same as what we have. Just move it into + # the keep configs. + if (defined($config_ignore{$config})) { + if ($config_ignore{$config} ne $min_configs{$config}) { + doprint "$config is in allnoconfig as '$config_ignore{$config}'"; + doprint " but it is '$min_configs{$config}' in minconfig .. keeping\n"; + $keep_configs{$config} = $min_configs{$config}; + } else { + doprint "$config set by allnoconfig ... ignored\n"; + } + delete $min_configs{$config}; + } + } + + my $done = 0; + my $take_two = 0; + + while (!$done) { + + my $config; + my $found; + + # Now disable each config one by one and do a make oldconfig + # till we find a config that changes our list. + + # Put configs that did not modify the config at the end. + my @test_configs = keys %min_configs; + my $reset = 1; + for (my $i = 0; $i < $#test_configs; $i++) { + if (!defined($nochange_config{$test_configs[0]})) { + $reset = 0; + last; + } + # This config didn't change the .config last time. + # Place it at the end + my $config = shift @test_configs; + push @test_configs, $config; + } + + # if every test config has failed to modify the .config file + # in the past, then reset and start over. + if ($reset) { + undef %nochange_config; + } + + undef %processed_configs; + + foreach my $config (@test_configs) { + + $found = test_this_config $config; + + last if (defined($found)); + + # oh well, try another config + } + + if (!defined($found)) { + # we could have failed due to the nochange_config hash + # reset and try again + if (!$take_two) { + undef %nochange_config; + $take_two = 1; + next; + } + doprint "No more configs found that we can disable\n"; + $done = 1; + last; + } + $take_two = 0; + + $config = $found; + + doprint "Test with $config disabled\n"; + + # set in_bisect to keep build and monitor from dieing + $in_bisect = 1; + + my $failed = 0; + build "oldconfig"; + start_monitor_and_boot or $failed = 1; + end_monitor; + + $in_bisect = 0; + + if ($failed) { + doprint "$min_configs{$config} is needed to boot the box... keeping\n"; + # this config is needed, add it to the ignore list. + $keep_configs{$config} = $min_configs{$config}; + $save_configs{$config} = $min_configs{$config}; + delete $min_configs{$config}; + + # update new ignore configs + if (defined($ignore_config)) { + open (OUT, ">$temp_config") + or die "Can't write to $temp_config"; + foreach my $config (keys %save_configs) { + print OUT "$save_configs{$config}\n"; + } + close OUT; + run_command "mv $temp_config $ignore_config" or + dodie "failed to copy update to $ignore_config"; + } + + } else { + # We booted without this config, remove it from the minconfigs. + doprint "$config is not needed, disabling\n"; + + delete $min_configs{$config}; + + # Also disable anything that is not enabled in this config + my %configs; + assign_configs \%configs, $output_config; + my @config_keys = keys %min_configs; + foreach my $config (@config_keys) { + if (!defined($configs{$config})) { + doprint "$config is not set, disabling\n"; + delete $min_configs{$config}; + } + } + + # Save off all the current mandidory configs + open (OUT, ">$temp_config") + or die "Can't write to $temp_config"; + foreach my $config (keys %keep_configs) { + print OUT "$keep_configs{$config}\n"; + } + foreach my $config (keys %min_configs) { + print OUT "$min_configs{$config}\n"; + } + close OUT; + + run_command "mv $temp_config $output_minconfig" or + dodie "failed to copy update to $output_minconfig"; + } + + doprint "Reboot and wait $sleep_time seconds\n"; + reboot; + start_monitor; + wait_for_monitor $sleep_time; + end_monitor; + } + + success $i; + return 1; +} + $#ARGV < 1 or die "ktest.pl version: $VERSION\n usage: ktest.pl config-file\n"; if ($#ARGV == 0) { $ktest_config = $ARGV[0]; if (! -f $ktest_config) { print "$ktest_config does not exist.\n"; - my $ans; - for (;;) { - print "Create it? [Y/n] "; - $ans = <STDIN>; - chomp $ans; - if ($ans =~ /^\s*$/) { - $ans = "y"; - } - last if ($ans =~ /^y$/i || $ans =~ /^n$/i); - print "Please answer either 'y' or 'n'.\n"; - } - if ($ans !~ /^y$/i) { + if (!read_yn "Create it?") { exit 0; } } @@ -1977,6 +2699,10 @@ EOF } read_config $ktest_config; +if (defined($opt{"LOG_FILE"})) { + $opt{"LOG_FILE"} = eval_option($opt{"LOG_FILE"}, -1); +} + # Append any configs entered in manually to the config file. my @new_configs = keys %entered_configs; if ($#new_configs >= 0) { @@ -2045,70 +2771,13 @@ sub __set_test_option { return undef; } -sub eval_option { - my ($option, $i) = @_; - - # Add space to evaluate the character before $ - $option = " $option"; - my $retval = ""; - - while ($option =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) { - my $start = $1; - my $var = $2; - my $end = $3; - - # Append beginning of line - $retval = "$retval$start"; - - # If the iteration option OPT[$i] exists, then use that. - # otherwise see if the default OPT (without [$i]) exists. - - my $o = "$var\[$i\]"; - - if (defined($opt{$o})) { - $o = $opt{$o}; - $retval = "$retval$o"; - } elsif (defined($opt{$var})) { - $o = $opt{$var}; - $retval = "$retval$o"; - } else { - $retval = "$retval\$\{$var\}"; - } - - $option = $end; - } - - $retval = "$retval$option"; - - $retval =~ s/^ //; - - return $retval; -} - sub set_test_option { my ($name, $i) = @_; my $option = __set_test_option($name, $i); return $option if (!defined($option)); - my $prev = ""; - - # Since an option can evaluate to another option, - # keep iterating until we do not evaluate any more - # options. - my $r = 0; - while ($prev ne $option) { - # Check for recursive evaluations. - # 100 deep should be more than enough. - if ($r++ > 100) { - die "Over 100 evaluations accurred with $name\n" . - "Check for recursive variables\n"; - } - $prev = $option; - $option = eval_option($option, $i); - } - - return $option; + return eval_option($option, $i); } # First we need to do is the builds @@ -2126,10 +2795,17 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { $test_type = set_test_option("TEST_TYPE", $i); $build_type = set_test_option("BUILD_TYPE", $i); $build_options = set_test_option("BUILD_OPTIONS", $i); + $pre_build = set_test_option("PRE_BUILD", $i); + $post_build = set_test_option("POST_BUILD", $i); + $pre_build_die = set_test_option("PRE_BUILD_DIE", $i); + $post_build_die = set_test_option("POST_BUILD_DIE", $i); $power_cycle = set_test_option("POWER_CYCLE", $i); $reboot = set_test_option("REBOOT", $i); $noclean = set_test_option("BUILD_NOCLEAN", $i); $minconfig = set_test_option("MIN_CONFIG", $i); + $output_minconfig = set_test_option("OUTPUT_MIN_CONFIG", $i); + $start_minconfig = set_test_option("START_MIN_CONFIG", $i); + $ignore_config = set_test_option("IGNORE_CONFIG", $i); $run_test = set_test_option("TEST", $i); $addconfig = set_test_option("ADD_CONFIG", $i); $reboot_type = set_test_option("REBOOT_TYPE", $i); @@ -2145,12 +2821,16 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { $sleep_time = set_test_option("SLEEP_TIME", $i); $bisect_sleep_time = set_test_option("BISECT_SLEEP_TIME", $i); $patchcheck_sleep_time = set_test_option("PATCHCHECK_SLEEP_TIME", $i); + $ignore_warnings = set_test_option("IGNORE_WARNINGS", $i); $bisect_manual = set_test_option("BISECT_MANUAL", $i); $bisect_skip = set_test_option("BISECT_SKIP", $i); + $config_bisect_good = set_test_option("CONFIG_BISECT_GOOD", $i); $store_failures = set_test_option("STORE_FAILURES", $i); + $test_name = set_test_option("TEST_NAME", $i); $timeout = set_test_option("TIMEOUT", $i); $booted_timeout = set_test_option("BOOTED_TIMEOUT", $i); $console = set_test_option("CONSOLE", $i); + $detect_triplefault = set_test_option("DETECT_TRIPLE_FAULT", $i); $success_line = set_test_option("SUCCESS_LINE", $i); $stop_after_success = set_test_option("STOP_AFTER_SUCCESS", $i); $stop_after_failure = set_test_option("STOP_AFTER_FAILURE", $i); @@ -2161,6 +2841,13 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { $target_image = set_test_option("TARGET_IMAGE", $i); $localversion = set_test_option("LOCALVERSION", $i); + $start_minconfig_defined = 1; + + if (!defined($start_minconfig)) { + $start_minconfig_defined = 0; + $start_minconfig = $minconfig; + } + chdir $builddir || die "can't change directory to $builddir"; if (!-d $tmpdir) { @@ -2193,6 +2880,10 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { $run_type = $opt{"CONFIG_BISECT_TYPE[$i]"}; } + if ($test_type eq "make_min_config") { + $run_type = ""; + } + # mistake in config file? if (!defined($run_type)) { $run_type = "ERROR"; @@ -2204,11 +2895,12 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { unlink $dmesg; unlink $buildlog; - if (!defined($minconfig)) { - $minconfig = $addconfig; - - } elsif (defined($addconfig)) { - run_command "cat $addconfig $minconfig > $tmpdir/add_config" or + if (defined($addconfig)) { + my $min = $minconfig; + if (!defined($minconfig)) { + $min = ""; + } + run_command "cat $addconfig $min > $tmpdir/add_config" or dodie "Failed to create temp config"; $minconfig = "$tmpdir/add_config"; } @@ -2228,6 +2920,9 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { } elsif ($test_type eq "patchcheck") { patchcheck $i; next; + } elsif ($test_type eq "make_min_config") { + make_min_config $i; + next; } if ($build_type ne "nobuild") { @@ -2235,13 +2930,8 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) { } if ($test_type ne "build") { - get_grub_index; - get_version; - install; - my $failed = 0; - start_monitor; - monitor or $failed = 1;; + start_monitor_and_boot or $failed = 1; if (!$failed && $test_type ne "boot" && defined($run_test)) { do_run_test or $failed = 1; diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf index 48cbcc80602a..b8bcd14b5a4d 100644 --- a/tools/testing/ktest/sample.conf +++ b/tools/testing/ktest/sample.conf @@ -293,6 +293,38 @@ # or on some systems: #POST_INSTALL = ssh user@target /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION +# If there is a script that you require to run before the build is done +# you can specify it with PRE_BUILD. +# +# One example may be if you must add a temporary patch to the build to +# fix a unrelated bug to perform a patchcheck test. This will apply the +# patch before each build that is made. Use the POST_BUILD to do a git reset --hard +# to remove the patch. +# +# (default undef) +#PRE_BUILD = cd ${BUILD_DIR} && patch -p1 < /tmp/temp.patch + +# To specify if the test should fail if the PRE_BUILD fails, +# PRE_BUILD_DIE needs to be set to 1. Otherwise the PRE_BUILD +# result is ignored. +# (default 0) +# PRE_BUILD_DIE = 1 + +# If there is a script that should run after the build is done +# you can specify it with POST_BUILD. +# +# As the example in PRE_BUILD, POST_BUILD can be used to reset modifications +# made by the PRE_BUILD. +# +# (default undef) +#POST_BUILD = cd ${BUILD_DIR} && git reset --hard + +# To specify if the test should fail if the POST_BUILD fails, +# POST_BUILD_DIE needs to be set to 1. Otherwise the POST_BUILD +# result is ignored. +# (default 0) +#POST_BUILD_DIE = 1 + # Way to reboot the box to the test kernel. # Only valid options so far are "grub" and "script" # (default grub) @@ -360,8 +392,8 @@ #ADD_CONFIG = /home/test/config-broken # The location on the host where to write temp files -# (default /tmp/ktest) -#TMP_DIR = /tmp/ktest +# (default /tmp/ktest/${MACHINE}) +#TMP_DIR = /tmp/ktest/${MACHINE} # Optional log file to write the status (recommended) # Note, this is a DEFAULT section only option. @@ -518,6 +550,16 @@ # The variables SSH_USER and MACHINE are defined. #REBOOT = ssh $SSH_USER@$MACHINE reboot +# The way triple faults are detected is by testing the kernel +# banner. If the kernel banner for the kernel we are testing is +# found, and then later a kernel banner for another kernel version +# is found, it is considered that we encountered a triple fault, +# and there is no panic or callback, but simply a reboot. +# To disable this (because it did a false positive) set the following +# to 0. +# (default 1) +#DETECT_TRIPLE_FAULT = 0 + #### Per test run options #### # The following options are only allowed in TEST_START sections. # They are ignored in the DEFAULTS sections. @@ -535,6 +577,12 @@ # all preceding tests until a new CHECKOUT is set. # # +# TEST_NAME = name +# +# If you want the test to have a name that is displayed in +# the test result banner at the end of the test, then use this +# option. This is useful to search for the RESULT keyword and +# not have to translate a test number to a test in the config. # # For TEST_TYPE = patchcheck # @@ -556,7 +604,12 @@ # build, boot, test. # # Note, the build test will look for warnings, if a warning occurred -# in a file that a commit touches, the build will fail. +# in a file that a commit touches, the build will fail, unless +# IGNORE_WARNINGS is set for the given commit's sha1 +# +# IGNORE_WARNINGS can be used to disable the failure of patchcheck +# on a particuler commit (SHA1). You can add more than one commit +# by adding a list of SHA1s that are space delimited. # # If BUILD_NOCLEAN is set, then make mrproper will not be run on # any of the builds, just like all other TEST_TYPE tests. But @@ -571,6 +624,7 @@ # PATCHCHECK_TYPE = boot # PATCHCHECK_START = 747e94ae3d1b4c9bf5380e569f614eb9040b79e7 # PATCHCHECK_END = HEAD~2 +# IGNORE_WARNINGS = 42f9c6b69b54946ffc0515f57d01dc7f5c0e4712 0c17ca2c7187f431d8ffc79e81addc730f33d128 # # # @@ -739,13 +793,18 @@ # boot - bad builds but fails to boot # test - bad boots but fails a test # -# CONFIG_BISECT is the config that failed to boot +# CONFIG_BISECT is the config that failed to boot # -# If BISECT_MANUAL is set, it will pause between iterations. -# This is useful to use just ktest.pl just for the config bisect. -# If you set it to build, it will run the bisect and you can -# control what happens in between iterations. It will ask you if -# the test succeeded or not and continue the config bisect. +# If BISECT_MANUAL is set, it will pause between iterations. +# This is useful to use just ktest.pl just for the config bisect. +# If you set it to build, it will run the bisect and you can +# control what happens in between iterations. It will ask you if +# the test succeeded or not and continue the config bisect. +# +# CONFIG_BISECT_GOOD (optional) +# If you have a good config to start with, then you +# can specify it with CONFIG_BISECT_GOOD. Otherwise +# the MIN_CONFIG is the base. # # Example: # TEST_START @@ -755,3 +814,68 @@ # MIN_CONFIG = /home/test/config-min # BISECT_MANUAL = 1 # +# +# +# For TEST_TYPE = make_min_config +# +# After doing a make localyesconfig, your kernel configuration may +# not be the most useful minimum configuration. Having a true minimum +# config that you can use against other configs is very useful if +# someone else has a config that breaks on your code. By only forcing +# those configurations that are truly required to boot your machine +# will give you less of a chance that one of your set configurations +# will make the bug go away. This will give you a better chance to +# be able to reproduce the reported bug matching the broken config. +# +# Note, this does take some time, and may require you to run the +# test over night, or perhaps over the weekend. But it also allows +# you to interrupt it, and gives you the current minimum config +# that was found till that time. +# +# Note, this test automatically assumes a BUILD_TYPE of oldconfig +# and its test type acts like boot. +# TODO: add a test version that makes the config do more than just +# boot, like having network access. +# +# To save time, the test does not just grab any option and test +# it. The Kconfig files are examined to determine the dependencies +# of the configs. If a config is chosen that depends on another +# config, that config will be checked first. By checking the +# parents first, we can eliminate whole groups of configs that +# may have been enabled. +# +# For example, if a USB device config is chosen and depends on CONFIG_USB, +# the CONFIG_USB will be tested before the device. If CONFIG_USB is +# found not to be needed, it, as well as all configs that depend on +# it, will be disabled and removed from the current min_config. +# +# OUTPUT_MIN_CONFIG is the path and filename of the file that will +# be created from the MIN_CONFIG. If you interrupt the test, set +# this file as your new min config, and use it to continue the test. +# This file does not need to exist on start of test. +# This file is not created until a config is found that can be removed. +# If this file exists, you will be prompted if you want to use it +# as the min_config (overriding MIN_CONFIG) if START_MIN_CONFIG +# is not defined. +# (required field) +# +# START_MIN_CONFIG is the config to use to start the test with. +# you can set this as the same OUTPUT_MIN_CONFIG, but if you do +# the OUTPUT_MIN_CONFIG file must exist. +# (default MIN_CONFIG) +# +# IGNORE_CONFIG is used to specify a config file that has configs that +# you already know must be set. Configs are written here that have +# been tested and proved to be required. It is best to define this +# file if you intend on interrupting the test and running it where +# it left off. New configs that it finds will be written to this file +# and will not be tested again in later runs. +# (optional) +# +# Example: +# +# TEST_TYPE = make_min_config +# OUTPUT_MIN_CONFIG = /path/to/config-new-min +# START_MIN_CONFIG = /path/to/config-min +# IGNORE_CONFIG = /path/to/config-tested +# |