ktest: Added config_bisect test type
Added the ability to do a config_bisect. It starts with a bad config and does the following loop. Enable half the configs. if none of the configs to check are not enabled (caused by missing dependencies) enable the other half. Run the test if the test passes, remove the configs from the check but enabled them for further tests (to satisfy dependencies). else Remove any config that was not enabled, as we have found a new config that can cause a failure. loop till we have only one config left. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt
Steven Rostedt
Родитель
e48c5293bd
Коммит
0a05c769a9
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@ -106,7 +106,6 @@ sub set_value {
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if (defined($opt{$lvalue})) {
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die "Error: Option $lvalue defined more than once!\n";
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}
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$opt{$lvalue} = $rvalue;
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if ($rvalue =~ /^\s*$/) {
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delete $opt{$lvalue};
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} else {
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@ -945,20 +944,18 @@ sub run_git_bisect {
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return 1;
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}
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sub run_bisect {
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my ($type) = @_;
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# returns 1 on success, 0 on failure
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sub run_bisect_test {
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my ($type, $buildtype) = @_;
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my $failed = 0;
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my $result;
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my $output;
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my $ret;
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if (defined($minconfig)) {
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build "useconfig:$minconfig" or $failed = 1;
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} else {
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# ?? no config to use?
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build "oldconfig" or $failed = 1;
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}
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$in_bisect = 1;
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build $buildtype or $failed = 1;
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if ($type ne "build") {
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dodie "Failed on build" if $failed;
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@ -980,7 +977,7 @@ sub run_bisect {
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}
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if ($failed) {
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$result = "bad";
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$result = 0;
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# reboot the box to a good kernel
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if ($type ne "build") {
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@ -991,19 +988,35 @@ sub run_bisect {
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end_monitor;
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}
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} else {
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$result = "good";
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$result = 1;
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}
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$in_bisect = 0;
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return $result;
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}
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sub run_bisect {
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my ($type) = @_;
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my $buildtype = "oldconfig";
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# We should have a minconfig to use?
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if (defined($minconfig)) {
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$buildtype = "useconfig:$minconfig";
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}
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my $ret = run_bisect_test $type, $buildtype;
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# Are we looking for where it worked, not failed?
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if ($reverse_bisect) {
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if ($failed) {
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$result = "good";
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} else {
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$result = "bad";
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}
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$ret = !$ret;
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}
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return $result;
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if ($ret) {
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return "good";
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} else {
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return "bad";
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}
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}
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sub bisect {
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@ -1033,8 +1046,6 @@ sub bisect {
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$reverse_bisect = 0;
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}
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$in_bisect = 1;
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# Can't have a test without having a test to run
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if ($type eq "test" && !defined($run_test)) {
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$type = "boot";
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@ -1108,7 +1119,359 @@ sub bisect {
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doprint "Bad commit was [$bisect_bad]\n";
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$in_bisect = 0;
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success $i;
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}
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my %config_ignore;
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my %config_set;
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my %config_list;
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my %null_config;
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my %dependency;
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sub process_config_ignore {
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my ($config) = @_;
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open (IN, $config)
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or dodie "Failed to read $config";
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while (<IN>) {
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if (/^(.*?(CONFIG\S*)(=.*| is not set))/) {
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$config_ignore{$2} = $1;
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}
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}
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close(IN);
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}
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sub read_current_config {
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my ($config_ref) = @_;
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%{$config_ref} = ();
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undef %{$config_ref};
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my @key = keys %{$config_ref};
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if ($#key >= 0) {
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print "did not delete!\n";
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exit;
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}
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open (IN, "$output_config");
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while (<IN>) {
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if (/^(CONFIG\S+)=(.*)/) {
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${$config_ref}{$1} = $2;
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}
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}
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close(IN);
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}
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sub get_dependencies {
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my ($config) = @_;
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my $arr = $dependency{$config};
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if (!defined($arr)) {
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return ();
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}
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my @deps = @{$arr};
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foreach my $dep (@{$arr}) {
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print "ADD DEP $dep\n";
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@deps = (@deps, get_dependencies $dep);
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}
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return @deps;
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}
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sub create_config {
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my @configs = @_;
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open(OUT, ">$output_config") or dodie "Can not write to $output_config";
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foreach my $config (@configs) {
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print OUT "$config_set{$config}\n";
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my @deps = get_dependencies $config;
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foreach my $dep (@deps) {
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print OUT "$config_set{$dep}\n";
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}
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}
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foreach my $config (keys %config_ignore) {
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print OUT "$config_ignore{$config}\n";
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}
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close(OUT);
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# exit;
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run_command "$make oldnoconfig" or
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dodie "failed make config oldconfig";
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}
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sub compare_configs {
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my (%a, %b) = @_;
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foreach my $item (keys %a) {
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if (!defined($b{$item})) {
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print "diff $item\n";
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return 1;
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}
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delete $b{$item};
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}
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my @keys = keys %b;
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if ($#keys) {
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print "diff2 $keys[0]\n";
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}
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return -1 if ($#keys >= 0);
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return 0;
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}
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sub run_config_bisect_test {
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my ($type) = @_;
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return run_bisect_test $type, "oldconfig";
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}
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sub process_passed {
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my (%configs) = @_;
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doprint "These configs had no failure: (Enabling them for further compiles)\n";
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# Passed! All these configs are part of a good compile.
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# Add them to the min options.
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foreach my $config (keys %configs) {
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if (defined($config_list{$config})) {
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doprint " removing $config\n";
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$config_ignore{$config} = $config_list{$config};
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delete $config_list{$config};
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}
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}
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}
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sub process_failed {
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my ($config) = @_;
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doprint "\n\n***************************************\n";
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doprint "Found bad config: $config\n";
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doprint "***************************************\n\n";
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}
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sub run_config_bisect {
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my @start_list = keys %config_list;
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if ($#start_list < 0) {
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doprint "No more configs to test!!!\n";
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return -1;
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}
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doprint "***** RUN TEST ***\n";
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my $type = $opt{"CONFIG_BISECT_TYPE[$iteration]"};
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my $ret;
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my %current_config;
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my $count = $#start_list + 1;
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doprint " $count configs to test\n";
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my $half = int($#start_list / 2);
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do {
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my @tophalf = @start_list[0 .. $half];
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create_config @tophalf;
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read_current_config \%current_config;
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$count = $#tophalf + 1;
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doprint "Testing $count configs\n";
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my $found = 0;
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# make sure we test something
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foreach my $config (@tophalf) {
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if (defined($current_config{$config})) {
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logit " $config\n";
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$found = 1;
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}
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}
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if (!$found) {
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# try the other half
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doprint "Top half produced no set configs, trying bottom half\n";
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@tophalf = @start_list[$half .. $#start_list];
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create_config @tophalf;
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read_current_config \%current_config;
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foreach my $config (@tophalf) {
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if (defined($current_config{$config})) {
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logit " $config\n";
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$found = 1;
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}
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}
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if (!$found) {
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doprint "Failed: Can't make new config with current configs\n";
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foreach my $config (@start_list) {
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doprint " CONFIG: $config\n";
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}
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return -1;
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}
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$count = $#tophalf + 1;
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doprint "Testing $count configs\n";
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}
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$ret = run_config_bisect_test $type;
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if ($ret) {
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process_passed %current_config;
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return 0;
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}
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doprint "This config had a failure.\n";
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doprint "Removing these configs that were not set in this config:\n";
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# A config exists in this group that was bad.
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foreach my $config (keys %config_list) {
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if (!defined($current_config{$config})) {
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doprint " removing $config\n";
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delete $config_list{$config};
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}
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}
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@start_list = @tophalf;
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if ($#start_list == 0) {
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process_failed $start_list[0];
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return 1;
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}
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# remove half the configs we are looking at and see if
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# they are good.
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$half = int($#start_list / 2);
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} while ($half > 0);
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# we found a single config, try it again
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my @tophalf = @start_list[0 .. 0];
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$ret = run_config_bisect_test $type;
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if ($ret) {
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process_passed %current_config;
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return 0;
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}
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process_failed $start_list[0];
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return 1;
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}
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sub config_bisect {
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my ($i) = @_;
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my $start_config = $opt{"CONFIG_BISECT[$i]"};
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my $tmpconfig = "$tmpdir/use_config";
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# Make the file with the bad config and the min config
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if (defined($minconfig)) {
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# read the min config for things to ignore
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run_command "cp $minconfig $tmpconfig" or
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dodie "failed to copy $minconfig to $tmpconfig";
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} else {
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unlink $tmpconfig;
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}
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# Add other configs
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if (defined($addconfig)) {
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run_command "cat $addconfig >> $tmpconfig" or
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dodie "failed to append $addconfig";
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}
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my $defconfig = "";
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if (-f $tmpconfig) {
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$defconfig = "KCONFIG_ALLCONFIG=$tmpconfig";
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process_config_ignore $tmpconfig;
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}
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# now process the start config
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run_command "cp $start_config $output_config" or
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dodie "failed to copy $start_config to $output_config";
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# read directly what we want to check
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my %config_check;
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open (IN, $output_config)
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or dodie "faied to open $output_config";
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while (<IN>) {
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if (/^((CONFIG\S*)=.*)/) {
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$config_check{$2} = $1;
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}
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}
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close(IN);
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# Now run oldconfig with the minconfig (and addconfigs)
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run_command "$defconfig $make oldnoconfig" or
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dodie "failed make config oldconfig";
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# check to see what we lost (or gained)
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open (IN, $output_config)
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or dodie "Failed to read $start_config";
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my %removed_configs;
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my %added_configs;
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while (<IN>) {
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if (/^((CONFIG\S*)=.*)/) {
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# save off all options
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$config_set{$2} = $1;
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if (defined($config_check{$2})) {
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if (defined($config_ignore{$2})) {
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$removed_configs{$2} = $1;
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} else {
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$config_list{$2} = $1;
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}
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} elsif (!defined($config_ignore{$2})) {
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$added_configs{$2} = $1;
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$config_list{$2} = $1;
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}
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}
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}
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close(IN);
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my @confs = keys %removed_configs;
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if ($#confs >= 0) {
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doprint "Configs overridden by default configs and removed from check:\n";
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foreach my $config (@confs) {
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doprint " $config\n";
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}
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}
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@confs = keys %added_configs;
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if ($#confs >= 0) {
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doprint "Configs appearing in make oldconfig and added:\n";
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foreach my $config (@confs) {
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doprint " $config\n";
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}
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}
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my %config_test;
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my $once = 0;
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# Sometimes kconfig does weird things. We must make sure
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# that the config we autocreate has everything we need
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# to test, otherwise we may miss testing configs, or
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# may not be able to create a new config.
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# Here we create a config with everything set.
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create_config (keys %config_list);
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read_current_config \%config_test;
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foreach my $config (keys %config_list) {
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if (!defined($config_test{$config})) {
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if (!$once) {
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$once = 1;
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doprint "Configs not produced by kconfig (will not be checked):\n";
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}
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doprint " $config\n";
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delete $config_list{$config};
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}
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}
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my $ret;
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do {
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$ret = run_config_bisect;
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} while (!$ret);
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return $ret if ($ret < 0);
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success $i;
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}
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@ -1341,7 +1704,6 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
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$dmesg = "$tmpdir/dmesg-$machine";
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$make = "$makecmd O=$outputdir";
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$output_config = "$outputdir/.config";
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$output_config = "$outputdir/.config";
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if ($reboot_type eq "grub") {
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dodie "GRUB_MENU not defined" if (!defined($grub_menu));
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@ -1354,6 +1716,8 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
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$run_type = $opt{"PATCHCHECK_TYPE[$i]"};
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} elsif ($test_type eq "bisect") {
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$run_type = $opt{"BISECT_TYPE[$i]"};
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} elsif ($test_type eq "config_bisect") {
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$run_type = $opt{"CONFIG_BISECT_TYPE[$i]"};
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}
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# mistake in config file?
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@ -1385,6 +1749,9 @@ for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
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if ($test_type eq "bisect") {
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bisect $i;
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next;
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} elsif ($test_type eq "config_bisect") {
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config_bisect $i;
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next;
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} elsif ($test_type eq "patchcheck") {
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patchcheck $i;
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next;
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