v4.19.13 snapshot.
diff --git a/tools/testing/ktest/compare-ktest-sample.pl b/tools/testing/ktest/compare-ktest-sample.pl
new file mode 100755
index 0000000..4118eb4
--- /dev/null
+++ b/tools/testing/ktest/compare-ktest-sample.pl
@@ -0,0 +1,33 @@
+#!/usr/bin/perl
+# SPDX-License-Identifier: GPL-2.0
+
+open (IN,"ktest.pl");
+while (<IN>) {
+ # hashes are now used
+ if (/\$opt\{"?([A-Z].*?)(\[.*\])?"?\}/ ||
+ /^\s*"?([A-Z].*?)"?\s*=>\s*/ ||
+ /set_test_option\("(.*?)"/) {
+ $opt{$1} = 1;
+ }
+}
+close IN;
+
+open (IN, "sample.conf");
+while (<IN>) {
+ if (/^\s*#?\s*([A-Z]\S*)\s*=/) {
+ $samp{$1} = 1;
+ }
+}
+close IN;
+
+foreach $opt (keys %opt) {
+ if (!defined($samp{$opt})) {
+ print "opt = $opt\n";
+ }
+}
+
+foreach $samp (keys %samp) {
+ if (!defined($opt{$samp})) {
+ print "samp = $samp\n";
+ }
+}
diff --git a/tools/testing/ktest/config-bisect.pl b/tools/testing/ktest/config-bisect.pl
new file mode 100755
index 0000000..b28feea
--- /dev/null
+++ b/tools/testing/ktest/config-bisect.pl
@@ -0,0 +1,770 @@
+#!/usr/bin/perl -w
+#
+# Copyright 2015 - Steven Rostedt, Red Hat Inc.
+# Copyright 2017 - Steven Rostedt, VMware, Inc.
+#
+# Licensed under the terms of the GNU GPL License version 2
+#
+
+# usage:
+# config-bisect.pl [options] good-config bad-config [good|bad]
+#
+
+# Compares a good config to a bad config, then takes half of the diffs
+# and produces a config that is somewhere between the good config and
+# the bad config. That is, the resulting config will start with the
+# good config and will try to make half of the differences of between
+# the good and bad configs match the bad config. It tries because of
+# dependencies between the two configs it may not be able to change
+# exactly half of the configs that are different between the two config
+# files.
+
+# Here's a normal way to use it:
+#
+# $ cd /path/to/linux/kernel
+# $ config-bisect.pl /path/to/good/config /path/to/bad/config
+
+# This will now pull in good config (blowing away .config in that directory
+# so do not make that be one of the good or bad configs), and then
+# build the config with "make oldconfig" to make sure it matches the
+# current kernel. It will then store the configs in that result for
+# the good config. It does the same for the bad config as well.
+# The algorithm will run, merging half of the differences between
+# the two configs and building them with "make oldconfig" to make sure
+# the result changes (dependencies may reset changes the tool had made).
+# It then copies the result of its good config to /path/to/good/config.tmp
+# and the bad config to /path/to/bad/config.tmp (just appends ".tmp" to the
+# files passed in). And the ".config" that you should test will be in
+# directory
+
+# After the first run, determine if the result is good or bad then
+# run the same command appending the result
+
+# For good results:
+# $ config-bisect.pl /path/to/good/config /path/to/bad/config good
+
+# For bad results:
+# $ config-bisect.pl /path/to/good/config /path/to/bad/config bad
+
+# Do not change the good-config or bad-config, config-bisect.pl will
+# copy the good-config to a temp file with the same name as good-config
+# but with a ".tmp" after it. It will do the same with the bad-config.
+
+# If "good" or "bad" is not stated at the end, it will copy the good and
+# bad configs to the .tmp versions. If a .tmp version already exists, it will
+# warn before writing over them (-r will not warn, and just write over them).
+# If the last config is labeled "good", then it will copy it to the good .tmp
+# version. If the last config is labeled "bad", it will copy it to the bad
+# .tmp version. It will continue this until it can not merge the two any more
+# without the result being equal to either the good or bad .tmp configs.
+
+my $start = 0;
+my $val = "";
+
+my $pwd = `pwd`;
+chomp $pwd;
+my $tree = $pwd;
+my $build;
+
+my $output_config;
+my $reset_bisect;
+
+sub usage {
+ print << "EOF"
+
+usage: config-bisect.pl [-l linux-tree][-b build-dir] good-config bad-config [good|bad]
+ -l [optional] define location of linux-tree (default is current directory)
+ -b [optional] define location to build (O=build-dir) (default is linux-tree)
+ good-config the config that is considered good
+ bad-config the config that does not work
+ "good" add this if the last run produced a good config
+ "bad" add this if the last run produced a bad config
+ If "good" or "bad" is not specified, then it is the start of a new bisect
+
+ Note, each run will create copy of good and bad configs with ".tmp" appended.
+
+EOF
+;
+
+ exit(-1);
+}
+
+sub doprint {
+ print @_;
+}
+
+sub dodie {
+ doprint "CRITICAL FAILURE... ", @_, "\n";
+
+ die @_, "\n";
+}
+
+sub expand_path {
+ my ($file) = @_;
+
+ if ($file =~ m,^/,) {
+ return $file;
+ }
+ return "$pwd/$file";
+}
+
+sub read_prompt {
+ my ($cancel, $prompt) = @_;
+
+ my $ans;
+
+ for (;;) {
+ if ($cancel) {
+ print "$prompt [y/n/C] ";
+ } else {
+ print "$prompt [y/N] ";
+ }
+ $ans = <STDIN>;
+ chomp $ans;
+ if ($ans =~ /^\s*$/) {
+ if ($cancel) {
+ $ans = "c";
+ } else {
+ $ans = "n";
+ }
+ }
+ last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
+ if ($cancel) {
+ last if ($ans =~ /^c$/i);
+ print "Please answer either 'y', 'n' or 'c'.\n";
+ } else {
+ print "Please answer either 'y' or 'n'.\n";
+ }
+ }
+ if ($ans =~ /^c/i) {
+ exit;
+ }
+ if ($ans !~ /^y$/i) {
+ return 0;
+ }
+ return 1;
+}
+
+sub read_yn {
+ my ($prompt) = @_;
+
+ return read_prompt 0, $prompt;
+}
+
+sub read_ync {
+ my ($prompt) = @_;
+
+ return read_prompt 1, $prompt;
+}
+
+sub run_command {
+ my ($command, $redirect) = @_;
+ my $start_time;
+ my $end_time;
+ my $dord = 0;
+ my $pid;
+
+ $start_time = time;
+
+ doprint("$command ... ");
+
+ $pid = open(CMD, "$command 2>&1 |") or
+ dodie "unable to exec $command";
+
+ if (defined($redirect)) {
+ open (RD, ">$redirect") or
+ dodie "failed to write to redirect $redirect";
+ $dord = 1;
+ }
+
+ while (<CMD>) {
+ print RD if ($dord);
+ }
+
+ waitpid($pid, 0);
+ my $failed = $?;
+
+ close(CMD);
+ close(RD) if ($dord);
+
+ $end_time = time;
+ my $delta = $end_time - $start_time;
+
+ if ($delta == 1) {
+ doprint "[1 second] ";
+ } else {
+ doprint "[$delta seconds] ";
+ }
+
+ if ($failed) {
+ doprint "FAILED!\n";
+ } else {
+ doprint "SUCCESS\n";
+ }
+
+ return !$failed;
+}
+
+###### CONFIG BISECT ######
+
+# config_ignore holds the configs that were set (or unset) for
+# a good config and we will ignore these configs for the rest
+# of a config bisect. These configs stay as they were.
+my %config_ignore;
+
+# config_set holds what all configs were set as.
+my %config_set;
+
+# config_off holds the set of configs that the bad config had disabled.
+# We need to record them and set them in the .config when running
+# olddefconfig, because olddefconfig keeps the defaults.
+my %config_off;
+
+# config_off_tmp holds a set of configs to turn off for now
+my @config_off_tmp;
+
+# config_list is the set of configs that are being tested
+my %config_list;
+my %null_config;
+
+my %dependency;
+
+my $make;
+
+sub make_oldconfig {
+
+ if (!run_command "$make olddefconfig") {
+ # Perhaps olddefconfig doesn't exist in this version of the kernel
+ # try oldnoconfig
+ doprint "olddefconfig failed, trying make oldnoconfig\n";
+ if (!run_command "$make oldnoconfig") {
+ doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
+ # try a yes '' | oldconfig
+ run_command "yes '' | $make oldconfig" or
+ dodie "failed make config oldconfig";
+ }
+ }
+}
+
+sub assign_configs {
+ my ($hash, $config) = @_;
+
+ doprint "Reading configs from $config\n";
+
+ open (IN, $config)
+ or dodie "Failed to read $config";
+
+ while (<IN>) {
+ chomp;
+ if (/^((CONFIG\S*)=.*)/) {
+ ${$hash}{$2} = $1;
+ } elsif (/^(# (CONFIG\S*) is not set)/) {
+ ${$hash}{$2} = $1;
+ }
+ }
+
+ close(IN);
+}
+
+sub process_config_ignore {
+ my ($config) = @_;
+
+ assign_configs \%config_ignore, $config;
+}
+
+sub get_dependencies {
+ my ($config) = @_;
+
+ my $arr = $dependency{$config};
+ if (!defined($arr)) {
+ return ();
+ }
+
+ my @deps = @{$arr};
+
+ foreach my $dep (@{$arr}) {
+ print "ADD DEP $dep\n";
+ @deps = (@deps, get_dependencies $dep);
+ }
+
+ return @deps;
+}
+
+sub save_config {
+ my ($pc, $file) = @_;
+
+ my %configs = %{$pc};
+
+ doprint "Saving configs into $file\n";
+
+ open(OUT, ">$file") or dodie "Can not write to $file";
+
+ foreach my $config (keys %configs) {
+ print OUT "$configs{$config}\n";
+ }
+ close(OUT);
+}
+
+sub create_config {
+ my ($name, $pc) = @_;
+
+ doprint "Creating old config from $name configs\n";
+
+ save_config $pc, $output_config;
+
+ make_oldconfig;
+}
+
+# compare two config hashes, and return configs with different vals.
+# It returns B's config values, but you can use A to see what A was.
+sub diff_config_vals {
+ my ($pa, $pb) = @_;
+
+ # crappy Perl way to pass in hashes.
+ my %a = %{$pa};
+ my %b = %{$pb};
+
+ my %ret;
+
+ foreach my $item (keys %a) {
+ if (defined($b{$item}) && $b{$item} ne $a{$item}) {
+ $ret{$item} = $b{$item};
+ }
+ }
+
+ return %ret;
+}
+
+# compare two config hashes and return the configs in B but not A
+sub diff_configs {
+ my ($pa, $pb) = @_;
+
+ my %ret;
+
+ # crappy Perl way to pass in hashes.
+ my %a = %{$pa};
+ my %b = %{$pb};
+
+ foreach my $item (keys %b) {
+ if (!defined($a{$item})) {
+ $ret{$item} = $b{$item};
+ }
+ }
+
+ return %ret;
+}
+
+# return if two configs are equal or not
+# 0 is equal +1 b has something a does not
+# +1 if a and b have a different item.
+# -1 if a has something b does not
+sub compare_configs {
+ my ($pa, $pb) = @_;
+
+ my %ret;
+
+ # crappy Perl way to pass in hashes.
+ my %a = %{$pa};
+ my %b = %{$pb};
+
+ foreach my $item (keys %b) {
+ if (!defined($a{$item})) {
+ return 1;
+ }
+ if ($a{$item} ne $b{$item}) {
+ return 1;
+ }
+ }
+
+ foreach my $item (keys %a) {
+ if (!defined($b{$item})) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+sub process_failed {
+ my ($config) = @_;
+
+ doprint "\n\n***************************************\n";
+ doprint "Found bad config: $config\n";
+ doprint "***************************************\n\n";
+}
+
+sub process_new_config {
+ my ($tc, $nc, $gc, $bc) = @_;
+
+ my %tmp_config = %{$tc};
+ my %good_configs = %{$gc};
+ my %bad_configs = %{$bc};
+
+ my %new_configs;
+
+ my $runtest = 1;
+ my $ret;
+
+ create_config "tmp_configs", \%tmp_config;
+ assign_configs \%new_configs, $output_config;
+
+ $ret = compare_configs \%new_configs, \%bad_configs;
+ if (!$ret) {
+ doprint "New config equals bad config, try next test\n";
+ $runtest = 0;
+ }
+
+ if ($runtest) {
+ $ret = compare_configs \%new_configs, \%good_configs;
+ if (!$ret) {
+ doprint "New config equals good config, try next test\n";
+ $runtest = 0;
+ }
+ }
+
+ %{$nc} = %new_configs;
+
+ return $runtest;
+}
+
+sub convert_config {
+ my ($config) = @_;
+
+ if ($config =~ /^# (.*) is not set/) {
+ $config = "$1=n";
+ }
+
+ $config =~ s/^CONFIG_//;
+ return $config;
+}
+
+sub print_config {
+ my ($sym, $config) = @_;
+
+ $config = convert_config $config;
+ doprint "$sym$config\n";
+}
+
+sub print_config_compare {
+ my ($good_config, $bad_config) = @_;
+
+ $good_config = convert_config $good_config;
+ $bad_config = convert_config $bad_config;
+
+ my $good_value = $good_config;
+ my $bad_value = $bad_config;
+ $good_value =~ s/(.*)=//;
+ my $config = $1;
+
+ $bad_value =~ s/.*=//;
+
+ doprint " $config $good_value -> $bad_value\n";
+}
+
+# Pass in:
+# $phalf: half of the configs names you want to add
+# $oconfigs: The orginial configs to start with
+# $sconfigs: The source to update $oconfigs with (from $phalf)
+# $which: The name of which half that is updating (top / bottom)
+# $type: The name of the source type (good / bad)
+sub make_half {
+ my ($phalf, $oconfigs, $sconfigs, $which, $type) = @_;
+
+ my @half = @{$phalf};
+ my %orig_configs = %{$oconfigs};
+ my %source_configs = %{$sconfigs};
+
+ my %tmp_config = %orig_configs;
+
+ doprint "Settings bisect with $which half of $type configs:\n";
+ foreach my $item (@half) {
+ doprint "Updating $item to $source_configs{$item}\n";
+ $tmp_config{$item} = $source_configs{$item};
+ }
+
+ return %tmp_config;
+}
+
+sub run_config_bisect {
+ my ($pgood, $pbad) = @_;
+
+ my %good_configs = %{$pgood};
+ my %bad_configs = %{$pbad};
+
+ my %diff_configs = diff_config_vals \%good_configs, \%bad_configs;
+ my %b_configs = diff_configs \%good_configs, \%bad_configs;
+ my %g_configs = diff_configs \%bad_configs, \%good_configs;
+
+ # diff_arr is what is in both good and bad but are different (y->n)
+ my @diff_arr = keys %diff_configs;
+ my $len_diff = $#diff_arr + 1;
+
+ # b_arr is what is in bad but not in good (has depends)
+ my @b_arr = keys %b_configs;
+ my $len_b = $#b_arr + 1;
+
+ # g_arr is what is in good but not in bad
+ my @g_arr = keys %g_configs;
+ my $len_g = $#g_arr + 1;
+
+ my $runtest = 0;
+ my %new_configs;
+ my $ret;
+
+ # Look at the configs that are different between good and bad.
+ # This does not include those that depend on other configs
+ # (configs depending on other configs that are not set would
+ # not show up even as a "# CONFIG_FOO is not set"
+
+
+ doprint "# of configs to check: $len_diff\n";
+ doprint "# of configs showing only in good: $len_g\n";
+ doprint "# of configs showing only in bad: $len_b\n";
+
+ if ($len_diff > 0) {
+ # Now test for different values
+
+ doprint "Configs left to check:\n";
+ doprint " Good Config\t\t\tBad Config\n";
+ doprint " -----------\t\t\t----------\n";
+ foreach my $item (@diff_arr) {
+ doprint " $good_configs{$item}\t$bad_configs{$item}\n";
+ }
+
+ my $half = int($#diff_arr / 2);
+ my @tophalf = @diff_arr[0 .. $half];
+
+ doprint "Set tmp config to be good config with some bad config values\n";
+
+ my %tmp_config = make_half \@tophalf, \%good_configs,
+ \%bad_configs, "top", "bad";
+
+ $runtest = process_new_config \%tmp_config, \%new_configs,
+ \%good_configs, \%bad_configs;
+
+ if (!$runtest) {
+ doprint "Set tmp config to be bad config with some good config values\n";
+
+ my %tmp_config = make_half \@tophalf, \%bad_configs,
+ \%good_configs, "top", "good";
+
+ $runtest = process_new_config \%tmp_config, \%new_configs,
+ \%good_configs, \%bad_configs;
+ }
+ }
+
+ if (!$runtest && $len_diff > 0) {
+ # do the same thing, but this time with bottom half
+
+ my $half = int($#diff_arr / 2);
+ my @bottomhalf = @diff_arr[$half+1 .. $#diff_arr];
+
+ doprint "Set tmp config to be good config with some bad config values\n";
+
+ my %tmp_config = make_half \@bottomhalf, \%good_configs,
+ \%bad_configs, "bottom", "bad";
+
+ $runtest = process_new_config \%tmp_config, \%new_configs,
+ \%good_configs, \%bad_configs;
+
+ if (!$runtest) {
+ doprint "Set tmp config to be bad config with some good config values\n";
+
+ my %tmp_config = make_half \@bottomhalf, \%bad_configs,
+ \%good_configs, "bottom", "good";
+
+ $runtest = process_new_config \%tmp_config, \%new_configs,
+ \%good_configs, \%bad_configs;
+ }
+ }
+
+ if ($runtest) {
+ make_oldconfig;
+ doprint "READY TO TEST .config IN $build\n";
+ return 0;
+ }
+
+ doprint "\n%%%%%%%% FAILED TO FIND SINGLE BAD CONFIG %%%%%%%%\n";
+ doprint "Hmm, can't make any more changes without making good == bad?\n";
+ doprint "Difference between good (+) and bad (-)\n";
+
+ foreach my $item (keys %bad_configs) {
+ if (!defined($good_configs{$item})) {
+ print_config "-", $bad_configs{$item};
+ }
+ }
+
+ foreach my $item (keys %good_configs) {
+ next if (!defined($bad_configs{$item}));
+ if ($good_configs{$item} ne $bad_configs{$item}) {
+ print_config_compare $good_configs{$item}, $bad_configs{$item};
+ }
+ }
+
+ foreach my $item (keys %good_configs) {
+ if (!defined($bad_configs{$item})) {
+ print_config "+", $good_configs{$item};
+ }
+ }
+ return -1;
+}
+
+sub config_bisect {
+ my ($good_config, $bad_config) = @_;
+ my $ret;
+
+ my %good_configs;
+ my %bad_configs;
+ my %tmp_configs;
+
+ doprint "Run good configs through make oldconfig\n";
+ assign_configs \%tmp_configs, $good_config;
+ create_config "$good_config", \%tmp_configs;
+ assign_configs \%good_configs, $output_config;
+
+ doprint "Run bad configs through make oldconfig\n";
+ assign_configs \%tmp_configs, $bad_config;
+ create_config "$bad_config", \%tmp_configs;
+ assign_configs \%bad_configs, $output_config;
+
+ save_config \%good_configs, $good_config;
+ save_config \%bad_configs, $bad_config;
+
+ return run_config_bisect \%good_configs, \%bad_configs;
+}
+
+while ($#ARGV >= 0) {
+ if ($ARGV[0] !~ m/^-/) {
+ last;
+ }
+ my $opt = shift @ARGV;
+
+ if ($opt eq "-b") {
+ $val = shift @ARGV;
+ if (!defined($val)) {
+ die "-b requires value\n";
+ }
+ $build = $val;
+ }
+
+ elsif ($opt eq "-l") {
+ $val = shift @ARGV;
+ if (!defined($val)) {
+ die "-l requires value\n";
+ }
+ $tree = $val;
+ }
+
+ elsif ($opt eq "-r") {
+ $reset_bisect = 1;
+ }
+
+ elsif ($opt eq "-h") {
+ usage;
+ }
+
+ else {
+ die "Unknow option $opt\n";
+ }
+}
+
+$build = $tree if (!defined($build));
+
+$tree = expand_path $tree;
+$build = expand_path $build;
+
+if ( ! -d $tree ) {
+ die "$tree not a directory\n";
+}
+
+if ( ! -d $build ) {
+ die "$build not a directory\n";
+}
+
+usage if $#ARGV < 1;
+
+if ($#ARGV == 1) {
+ $start = 1;
+} elsif ($#ARGV == 2) {
+ $val = $ARGV[2];
+ if ($val ne "good" && $val ne "bad") {
+ die "Unknown command '$val', bust be either \"good\" or \"bad\"\n";
+ }
+} else {
+ usage;
+}
+
+my $good_start = expand_path $ARGV[0];
+my $bad_start = expand_path $ARGV[1];
+
+my $good = "$good_start.tmp";
+my $bad = "$bad_start.tmp";
+
+$make = "make";
+
+if ($build ne $tree) {
+ $make = "make O=$build"
+}
+
+$output_config = "$build/.config";
+
+if ($start) {
+ if ( ! -f $good_start ) {
+ die "$good_start not found\n";
+ }
+ if ( ! -f $bad_start ) {
+ die "$bad_start not found\n";
+ }
+ if ( -f $good || -f $bad ) {
+ my $p = "";
+
+ if ( -f $good ) {
+ $p = "$good exists\n";
+ }
+
+ if ( -f $bad ) {
+ $p = "$p$bad exists\n";
+ }
+
+ if (!defined($reset_bisect)) {
+ if (!read_yn "${p}Overwrite and start new bisect anyway?") {
+ exit (-1);
+ }
+ }
+ }
+ run_command "cp $good_start $good" or die "failed to copy to $good\n";
+ run_command "cp $bad_start $bad" or die "faield to copy to $bad\n";
+} else {
+ if ( ! -f $good ) {
+ die "Can not find file $good\n";
+ }
+ if ( ! -f $bad ) {
+ die "Can not find file $bad\n";
+ }
+ if ($val eq "good") {
+ run_command "cp $output_config $good" or die "failed to copy $config to $good\n";
+ } elsif ($val eq "bad") {
+ run_command "cp $output_config $bad" or die "failed to copy $config to $bad\n";
+ }
+}
+
+chdir $tree || die "can't change directory to $tree";
+
+my $ret = config_bisect $good, $bad;
+
+if (!$ret) {
+ exit(0);
+}
+
+if ($ret > 0) {
+ doprint "Cleaning temp files\n";
+ run_command "rm $good";
+ run_command "rm $bad";
+ exit(1);
+} else {
+ doprint "See good and bad configs for details:\n";
+ doprint "good: $good\n";
+ doprint "bad: $bad\n";
+ doprint "%%%%%%%% FAILED TO FIND SINGLE BAD CONFIG %%%%%%%%\n";
+}
+exit(2);
diff --git a/tools/testing/ktest/examples/README b/tools/testing/ktest/examples/README
new file mode 100644
index 0000000..a12d295
--- /dev/null
+++ b/tools/testing/ktest/examples/README
@@ -0,0 +1,32 @@
+This directory contains example configs to use ktest for various tasks.
+The configs still need to be customized for your environment, but it
+is broken up by task which makes it easier to understand how to set up
+ktest.
+
+The configs are based off of real working configs but have been modified
+and commented to show more generic use cases that are more helpful for
+developers.
+
+crosstests.conf - this config shows an example of testing a git repo against
+ lots of different architectures. It only does build tests, but makes
+ it easy to compile test different archs. You can download the arch
+ cross compilers from:
+ http://kernel.org/pub/tools/crosstool/files/bin/x86_64/
+
+test.conf - A generic example of a config. This is based on an actual config
+ used to perform real testing.
+
+kvm.conf - A example of a config that is used to test a virtual guest running
+ on a host.
+
+snowball.conf - An example config that was used to demo ktest.pl against
+ a snowball ARM board.
+
+include/ - The include directory holds default configs that can be
+ included into other configs. This is a real use example that shows how
+ to reuse configs for various machines or set ups. The files here
+ are included by other config files, where the other config files define
+ options and variables that will make the included config work for the
+ given environment.
+
+
diff --git a/tools/testing/ktest/examples/crosstests.conf b/tools/testing/ktest/examples/crosstests.conf
new file mode 100644
index 0000000..6907f32
--- /dev/null
+++ b/tools/testing/ktest/examples/crosstests.conf
@@ -0,0 +1,225 @@
+#
+# Example config for cross compiling
+#
+# In this config, it is expected that the tool chains from:
+#
+# http://kernel.org/pub/tools/crosstool/files/bin/x86_64/
+#
+# running on a x86_64 system have been downloaded and installed into:
+#
+# /usr/local/
+#
+# such that the compiler binaries are something like:
+#
+# /usr/local/gcc-4.5.2-nolibc/mips-linux/bin/mips-linux-gcc
+#
+# Some of the archs will use gcc-4.5.1 instead of gcc-4.5.2
+# this config uses variables to differentiate them.
+#
+# Comments describe some of the options, but full descriptions of
+# options are described in the samples.conf file.
+
+# ${PWD} is defined by ktest.pl to be the directory that the user
+# was in when they executed ktest.pl. It may be better to hardcode the
+# path name here. THIS_DIR is the variable used through out the config file
+# in case you want to change it.
+
+THIS_DIR := ${PWD}
+
+# Update the BUILD_DIR option to the location of your git repo you want to test.
+BUILD_DIR = ${THIS_DIR}/linux.git
+
+# The build will go into this directory. It will be created when you run the test.
+OUTPUT_DIR = ${THIS_DIR}/cross-compile
+
+# The build will be compiled with -j8
+BUILD_OPTIONS = -j8
+
+# The test will not stop when it hits a failure.
+DIE_ON_FAILURE = 0
+
+# If you want to have ktest.pl store the failure somewhere, uncomment this option
+# and change the directory where ktest should store the failures.
+#STORE_FAILURES = ${THIS_DIR}/failures
+
+# The log file is stored in the OUTPUT_DIR called cross.log
+# If you enable this, you need to create the OUTPUT_DIR. It wont be created for you.
+LOG_FILE = ${OUTPUT_DIR}/cross.log
+
+# The log file will be cleared each time you run ktest.
+CLEAR_LOG = 1
+
+# As some archs do not build with the defconfig, they have been marked
+# to be ignored. If you want to test them anyway, change DO_FAILED to 1.
+# If a test that has been marked as DO_FAILED passes, then you should change
+# that test to be DO_DEFAULT
+
+DO_FAILED := 0
+DO_DEFAULT := 1
+
+# By setting both DO_FAILED and DO_DEFAULT to zero, you can pick a single
+# arch that you want to test. (uncomment RUN and chose your arch)
+#RUN := arm
+
+# At the bottom of the config file exists a bisect test. You can update that
+# test and set DO_FAILED and DO_DEFAULT to zero, and uncomment this variable
+# to run the bisect on the arch.
+#RUN := bisect
+
+# By default all tests will be running gcc 4.5.2. Some tests are using 4.5.1
+# and they select that in the test.
+# Note: GCC_VER is declared as on option and not a variable ('=' instead of ':=')
+# This is important. A variable is used only in the config file and if it is set
+# it stays that way for the rest of the config file until it is change again.
+# Here we want GCC_VER to remain persistent and change for each test, as it is used in
+# the MAKE_CMD. By using '=' instead of ':=' we achieve our goal.
+
+GCC_VER = 4.5.2
+MAKE_CMD = PATH=/usr/local/gcc-${GCC_VER}-nolibc/${CROSS}/bin:$PATH CROSS_COMPILE=${CROSS}- make ARCH=${ARCH}
+
+# all tests are only doing builds.
+TEST_TYPE = build
+
+# If you want to add configs on top of the defconfig, you can add those configs into
+# the add-config file and uncomment this option. This is useful if you want to test
+# all cross compiles with PREEMPT set, or TRACING on, etc.
+#ADD_CONFIG = ${THIS_DIR}/add-config
+
+# All tests are using defconfig
+BUILD_TYPE = defconfig
+
+# The test names will have the arch and cross compiler used. This will be shown in
+# the results.
+TEST_NAME = ${ARCH} ${CROSS}
+
+# alpha
+TEST_START IF ${RUN} == alpha || ${DO_DEFAULT}
+# Notice that CROSS and ARCH are also options and not variables (again '=' instead
+# of ':='). This is because TEST_NAME and MAKE_CMD wil use them for each test.
+# Only options are available during runs. Variables are only present in parsing the
+# config file.
+CROSS = alpha-linux
+ARCH = alpha
+
+# arm
+TEST_START IF ${RUN} == arm || ${DO_DEFAULT}
+CROSS = arm-unknown-linux-gnueabi
+ARCH = arm
+
+# ia64
+TEST_START IF ${RUN} == ia64 || ${DO_DEFAULT}
+CROSS = ia64-linux
+ARCH = ia64
+
+# m68k fails with error?
+TEST_START IF ${RUN} == m68k || ${DO_DEFAULT}
+CROSS = m68k-linux
+ARCH = m68k
+
+# mips64
+TEST_START IF ${RUN} == mips || ${RUN} == mips64 || ${DO_DEFAULT}
+CROSS = mips64-linux
+ARCH = mips
+
+# mips32
+TEST_START IF ${RUN} == mips || ${RUN} == mips32 || ${DO_DEFAULT}
+CROSS = mips-linux
+ARCH = mips
+
+# parisc64 failed?
+TEST_START IF ${RUN} == hppa || ${RUN} == hppa64 || ${DO_FAILED}
+CROSS = hppa64-linux
+ARCH = parisc
+
+# parisc
+TEST_START IF ${RUN} == hppa || ${RUN} == hppa32 || ${DO_FAILED}
+CROSS = hppa-linux
+ARCH = parisc
+
+# ppc
+TEST_START IF ${RUN} == ppc || ${RUN} == ppc32 || ${DO_DEFAULT}
+CROSS = powerpc-linux
+ARCH = powerpc
+
+# ppc64
+TEST_START IF ${RUN} == ppc || ${RUN} == ppc64 || ${DO_DEFAULT}
+CROSS = powerpc64-linux
+ARCH = powerpc
+
+# s390
+TEST_START IF ${RUN} == s390 || ${DO_DEFAULT}
+CROSS = s390x-linux
+ARCH = s390
+
+# sh
+TEST_START IF ${RUN} == sh || ${DO_DEFAULT}
+CROSS = sh4-linux
+ARCH = sh
+
+# sparc64
+TEST_START IF ${RUN} == sparc || ${RUN} == sparc64 || ${DO_DEFAULT}
+CROSS = sparc64-linux
+ARCH = sparc64
+
+# sparc
+TEST_START IF ${RUN} == sparc || ${RUN} == sparc32 || ${DO_DEFAULT}
+CROSS = sparc-linux
+ARCH = sparc
+
+# xtensa failed
+TEST_START IF ${RUN} == xtensa || ${DO_FAILED}
+CROSS = xtensa-linux
+ARCH = xtensa
+
+# UML
+TEST_START IF ${RUN} == uml || ${DO_DEFAULT}
+MAKE_CMD = make ARCH=um SUBARCH=x86_64
+ARCH = uml
+CROSS =
+
+TEST_START IF ${RUN} == x86 || ${RUN} == i386 || ${DO_DEFAULT}
+MAKE_CMD = make ARCH=i386
+ARCH = i386
+CROSS =
+
+TEST_START IF ${RUN} == x86 || ${RUN} == x86_64 || ${DO_DEFAULT}
+MAKE_CMD = make ARCH=x86_64
+ARCH = x86_64
+CROSS =
+
+#################################
+
+# This is a bisect if needed. You need to give it a MIN_CONFIG that
+# will be the config file it uses. Basically, just copy the created defconfig
+# for the arch someplace and point MIN_CONFIG to it.
+TEST_START IF ${RUN} == bisect
+MIN_CONFIG = ${THIS_DIR}/min-config
+CROSS = s390x-linux
+ARCH = s390
+TEST_TYPE = bisect
+BISECT_TYPE = build
+BISECT_GOOD = v3.1
+BISECT_BAD = v3.2
+CHECKOUT = v3.2
+
+#################################
+
+# These defaults are needed to keep ktest.pl from complaining. They are
+# ignored because the test does not go pass the build. No install or
+# booting of the target images.
+
+DEFAULTS
+MACHINE = crosstest
+SSH_USER = root
+BUILD_TARGET = cross
+TARGET_IMAGE = image
+POWER_CYCLE = cycle
+CONSOLE = console
+LOCALVERSION = version
+GRUB_MENU = grub
+
+REBOOT_ON_ERROR = 0
+POWEROFF_ON_ERROR = 0
+POWEROFF_ON_SUCCESS = 0
+REBOOT_ON_SUCCESS = 0
+
diff --git a/tools/testing/ktest/examples/include/bisect.conf b/tools/testing/ktest/examples/include/bisect.conf
new file mode 100644
index 0000000..009bea6
--- /dev/null
+++ b/tools/testing/ktest/examples/include/bisect.conf
@@ -0,0 +1,90 @@
+#
+# This example shows the bisect tests (git bisect and config bisect)
+#
+
+
+# The config that includes this file may define a RUN_TEST
+# variable that will tell this config what test to run.
+# (what to set the TEST option to).
+#
+DEFAULTS IF NOT DEFINED RUN_TEST
+# Requires that hackbench is in the PATH
+RUN_TEST := ${SSH} hackbench 50
+
+
+# Set TEST to 'bisect' to do a normal git bisect. You need
+# to modify the options below to make it bisect the exact
+# commits you are interested in.
+#
+TEST_START IF ${TEST} == bisect
+TEST_TYPE = bisect
+# You must set the commit that was considered good (git bisect good)
+BISECT_GOOD = v3.3
+# You must set the commit that was considered bad (git bisect bad)
+BISECT_BAD = HEAD
+# It's best to specify the branch to checkout before starting the bisect.
+CHECKOUT = origin/master
+# This can be build, boot, or test. Here we are doing a bisect
+# that requires to run a test to know if the bisect was good or bad.
+# The test should exit with 0 on good, non-zero for bad. But see
+# the BISECT_RET_* options in samples.conf to override this.
+BISECT_TYPE = test
+TEST = ${RUN_TEST}
+# It is usually a good idea to confirm that the GOOD and the BAD
+# commits are truly good and bad respectively. Having BISECT_CHECK
+# set to 1 will check both that the good commit works and the bad
+# commit fails. If you only want to check one or the other,
+# set BISECT_CHECK to 'good' or to 'bad'.
+BISECT_CHECK = 1
+#BISECT_CHECK = good
+#BISECT_CHECK = bad
+
+# Usually it's a good idea to specify the exact config you
+# want to use throughout the entire bisect. Here we placed
+# it in the directory we called ktest.pl from and named it
+# 'config-bisect'.
+MIN_CONFIG = ${THIS_DIR}/config-bisect
+# By default, if we are doing a BISECT_TYPE = test run but the
+# build or boot fails, ktest.pl will do a 'git bisect skip'.
+# Uncomment the below option to make ktest stop testing on such
+# an error.
+#BISECT_SKIP = 0
+# Now if you had BISECT_SKIP = 0 and the test fails, you can
+# examine what happened and then do 'git bisect log > /tmp/replay'
+# Set BISECT_REPLAY to /tmp/replay and ktest.pl will run the
+# 'git bisect replay /tmp/replay' before continuing the bisect test.
+#BISECT_REPLAY = /tmp/replay
+# If you used BISECT_REPLAY after the bisect test failed, you may
+# not want to continue the bisect on that commit that failed.
+# By setting BISECT_START to a new commit. ktest.pl will checkout
+# that commit after it has performed the 'git bisect replay' but
+# before it continues running the bisect test.
+#BISECT_START = 2545eb6198e7e1ec50daa0cfc64a4cdfecf24ec9
+
+# Now if you don't trust ktest.pl to make the decisions for you, then
+# set BISECT_MANUAL to 1. This will cause ktest.pl not to decide
+# if the commit was good or bad. Instead, it will ask you to tell
+# it if the current commit was good. In the mean time, you could
+# take the result, load it on any machine you want. Run several tests,
+# or whatever you feel like. Then, when you are happy, you can tell
+# ktest if you think it was good or not and ktest.pl will continue
+# the git bisect. You can even change what commit it is currently at.
+#BISECT_MANUAL = 1
+
+
+# One of the unique tests that ktest does is the config bisect.
+# Currently (which hopefully will be fixed soon), the bad config
+# must be a superset of the good config. This is because it only
+# searches for a config that causes the target to fail. If the
+# good config is not a subset of the bad config, or if the target
+# fails because of a lack of a config, then it will not find
+# the config for you.
+TEST_START IF ${TEST} == config-bisect
+TEST_TYPE = config_bisect
+# set to build, boot, test
+CONFIG_BISECT_TYPE = boot
+# Set the config that is considered bad.
+CONFIG_BISECT = ${THIS_DIR}/config-bad
+# This config is optional. By default it uses the
+# MIN_CONFIG as the good config.
+CONFIG_BISECT_GOOD = ${THIS_DIR}/config-good
diff --git a/tools/testing/ktest/examples/include/defaults.conf b/tools/testing/ktest/examples/include/defaults.conf
new file mode 100644
index 0000000..63a1a83
--- /dev/null
+++ b/tools/testing/ktest/examples/include/defaults.conf
@@ -0,0 +1,157 @@
+# This file holds defaults for most the tests. It defines the options that
+# are most common to tests that are likely to be shared.
+#
+# Note, after including this file, a config file may override any option
+# with a DEFAULTS OVERRIDE section.
+#
+
+# For those cases that use the same machine to boot a 64 bit
+# and a 32 bit version. The MACHINE is the DNS name to get to the
+# box (usually different if it was 64 bit or 32 bit) but the
+# BOX here is defined as a variable that will be the name of the box
+# itself. It is useful for calling scripts that will power cycle
+# the box, as only one script needs to be created to power cycle
+# even though the box itself has multiple operating systems on it.
+# By default, BOX and MACHINE are the same.
+
+DEFAULTS IF NOT DEFINED BOX
+BOX := ${MACHINE}
+
+
+# Consider each box as 64 bit box, unless the config including this file
+# has defined BITS = 32
+
+DEFAULTS IF NOT DEFINED BITS
+BITS := 64
+
+
+DEFAULTS
+
+# THIS_DIR is used through out the configs and defaults to ${PWD} which
+# is the directory that ktest.pl was called from.
+
+THIS_DIR := ${PWD}
+
+
+# to organize your configs, having each machine save their configs
+# into a separate directly is useful.
+CONFIG_DIR := ${THIS_DIR}/configs/${MACHINE}
+
+# Reset the log before running each test.
+CLEAR_LOG = 1
+
+# As installing kernels usually requires root privilege, default the
+# user on the target as root. It is also required that the target
+# allows ssh to root from the host without asking for a password.
+
+SSH_USER = root
+
+# For accesing the machine, we will ssh to root@machine.
+SSH := ssh ${SSH_USER}@${MACHINE}
+
+# Update this. The default here is ktest will ssh to the target box
+# and run a script called 'run-test' located on that box.
+TEST = ${SSH} run-test
+
+# Point build dir to the git repo you use
+BUILD_DIR = ${THIS_DIR}/linux.git
+
+# Each machine will have its own output build directory.
+OUTPUT_DIR = ${THIS_DIR}/build/${MACHINE}
+
+# Yes this config is focused on x86 (but ktest works for other archs too)
+BUILD_TARGET = arch/x86/boot/bzImage
+TARGET_IMAGE = /boot/vmlinuz-test
+
+# have directory for the scripts to reboot and power cycle the boxes
+SCRIPTS_DIR := ${THIS_DIR}/scripts
+
+# You can have each box/machine have a script to power cycle it.
+# Name your script <box>-cycle.
+POWER_CYCLE = ${SCRIPTS_DIR}/${BOX}-cycle
+
+# This script is used to power off the box.
+POWER_OFF = ${SCRIPTS_DIR}/${BOX}-poweroff
+
+# Keep your test kernels separate from your other kernels.
+LOCALVERSION = -test
+
+# The /boot/grub/menu.lst is searched for the line:
+# title Test Kernel
+# and ktest will use that kernel to reboot into.
+# For grub2 or other boot loaders, you need to set BOOT_TYPE
+# to 'script' and define other ways to load the kernel.
+# See snowball.conf example.
+#
+GRUB_MENU = Test Kernel
+
+# The kernel build will use this option.
+BUILD_OPTIONS = -j8
+
+# Keeping the log file with the output dir is convenient.
+LOG_FILE = ${OUTPUT_DIR}/${MACHINE}.log
+
+# Each box should have their own minum configuration
+# See min-config.conf
+MIN_CONFIG = ${CONFIG_DIR}/config-min
+
+# For things like randconfigs, there may be configs you find that
+# are already broken, or there may be some configs that you always
+# want set. Uncomment ADD_CONFIG and point it to the make config files
+# that set the configs you want to keep on (or off) in your build.
+# ADD_CONFIG is usually something to add configs to all machines,
+# where as, MIN_CONFIG is specific per machine.
+#ADD_CONFIG = ${THIS_DIR}/config-broken ${THIS_DIR}/config-general
+
+# To speed up reboots for bisects and patchcheck, instead of
+# waiting 60 seconds for the console to be idle, if this line is
+# seen in the console output, ktest will know the good kernel has
+# finished rebooting and it will be able to continue the tests.
+REBOOT_SUCCESS_LINE = ${MACHINE} login:
+
+# The following is different ways to end the test.
+# by setting the variable REBOOT to: none, error, fail or
+# something else, ktest will power cycle or reboot the target box
+# at the end of the tests.
+#
+# REBOOT := none
+# Don't do anything at the end of the test.
+#
+# REBOOT := error
+# Reboot the box if ktest detects an error
+#
+# REBOOT := fail
+# Do not stop on failure, and after all tests are complete
+# power off the box (for both success and error)
+# This is good to run over a weekend and you don't want to waste
+# electricity.
+#
+
+DEFAULTS IF ${REBOOT} == none
+REBOOT_ON_SUCCESS = 0
+REBOOT_ON_ERROR = 0
+POWEROFF_ON_ERROR = 0
+POWEROFF_ON_SUCCESS = 0
+
+DEFAULTS ELSE IF ${REBOOT} == error
+REBOOT_ON_SUCCESS = 0
+REBOOT_ON_ERROR = 1
+POWEROFF_ON_ERROR = 0
+POWEROFF_ON_SUCCESS = 0
+
+DEFAULTS ELSE IF ${REBOOT} == fail
+REBOOT_ON_SUCCESS = 0
+POWEROFF_ON_ERROR = 1
+POWEROFF_ON_SUCCESS = 1
+POWEROFF_AFTER_HALT = 120
+DIE_ON_FAILURE = 0
+
+# Store the failure information into this directory
+# such as the .config, dmesg, and build log.
+STORE_FAILURES = ${THIS_DIR}/failures
+
+DEFAULTS ELSE
+REBOOT_ON_SUCCESS = 1
+REBOOT_ON_ERROR = 1
+POWEROFF_ON_ERROR = 0
+POWEROFF_ON_SUCCESS = 0
diff --git a/tools/testing/ktest/examples/include/min-config.conf b/tools/testing/ktest/examples/include/min-config.conf
new file mode 100644
index 0000000..c703cc4
--- /dev/null
+++ b/tools/testing/ktest/examples/include/min-config.conf
@@ -0,0 +1,60 @@
+#
+# This file has some examples for creating a MIN_CONFIG.
+# (A .config file that is the minimum for a machine to boot, or
+# to boot and make a network connection.)
+#
+# A MIN_CONFIG is very useful as it is the minimum configuration
+# needed to boot a given machine. You can debug someone else's
+# .config by only setting the configs in your MIN_CONFIG. The closer
+# your MIN_CONFIG is to the true minimum set of configs needed to
+# boot your machine, the closer the config you test with will be
+# to the users config that had the failure.
+#
+# The make_min_config test allows you to create a MIN_CONFIG that
+# is truly the minimum set of configs needed to boot a box.
+#
+# In this example, the final config will reside in
+# ${CONFIG_DIR}/config-new-min and ${CONFIG_DIR}/config-new-min-net.
+# Just move one to the location you have set for MIN_CONFIG.
+#
+# The first test creates a MIN_CONFIG that will be the minimum
+# configuration to boot ${MACHINE} and be able to ssh to it.
+#
+# The second test creates a MIN_CONFIG that will only boot
+# the target and most likely will not let you ssh to it. (Notice
+# how the second test uses the first test's result to continue with.
+# This is because the second test config is a subset of the first).
+#
+# The ${CONFIG_DIR}/config-skip (and -net) will hold the configs
+# that ktest.pl found would not boot the target without them set.
+# The config-new-min holds configs that ktest.pl could not test
+# directly because another config that was needed to boot the box
+# selected them. Sometimes it is possible that this file will hold
+# the true minimum configuration. You can test to see if this is
+# the case by running the boot test with BOOT_TYPE = allnoconfig and
+# setting setting the MIN_CONFIG to ${CONFIG_DIR}/config-skip. If the
+# machine still boots, then you can use the config-skip as your MIN_CONFIG.
+#
+# These tests can run for several hours (and perhaps days).
+# It's OK to kill the test with a Ctrl^C. By restarting without
+# modifying this config, ktest.pl will notice that the config-new-min(-net)
+# exists, and will use that instead as the starting point.
+# The USE_OUTPUT_MIN_CONFIG is set to 1 to keep ktest.pl from asking
+# you if you want to use the OUTPUT_MIN_CONFIG as the starting point.
+# By using the OUTPUT_MIN_CONFIG as the starting point will allow ktest.pl to
+# start almost where it left off.
+#
+TEST_START IF ${TEST} == min-config
+TEST_TYPE = make_min_config
+OUTPUT_MIN_CONFIG = ${CONFIG_DIR}/config-new-min-net
+IGNORE_CONFIG = ${CONFIG_DIR}/config-skip-net
+MIN_CONFIG_TYPE = test
+TEST = ${SSH} echo hi
+USE_OUTPUT_MIN_CONFIG = 1
+
+TEST_START IF ${TEST} == min-config && ${MULTI}
+TEST_TYPE = make_min_config
+OUTPUT_MIN_CONFIG = ${CONFIG_DIR}/config-new-min
+IGNORE_CONFIG = ${CONFIG_DIR}/config-skip
+MIN_CONFIG = ${CONFIG_DIR}/config-new-min-net
+USE_OUTPUT_MIN_CONFIG = 1
diff --git a/tools/testing/ktest/examples/include/patchcheck.conf b/tools/testing/ktest/examples/include/patchcheck.conf
new file mode 100644
index 0000000..0eb0a5a
--- /dev/null
+++ b/tools/testing/ktest/examples/include/patchcheck.conf
@@ -0,0 +1,111 @@
+# patchcheck.conf
+#
+# This contains a test that takes two git commits and will test each
+# commit between the two. The build test will look at what files the
+# commit has touched, and if any of those files produce a warning, then
+# the build will fail.
+
+
+# PATCH_START is the commit to begin with and PATCH_END is the commit
+# to end with (inclusive). This is similar to doing a git rebase -i PATCH_START~1
+# and then testing each commit and doing a git rebase --continue.
+# You can use a SHA1, a git tag, or anything that git will accept for a checkout
+
+PATCH_START := HEAD~3
+PATCH_END := HEAD
+
+# Use the oldconfig if build_type wasn't defined
+DEFAULTS IF NOT DEFINED BUILD_TYPE
+DO_BUILD_TYPE := oldconfig
+
+DEFAULTS ELSE
+DO_BUILD_TYPE := ${BUILD_TYPE}
+
+DEFAULTS
+
+
+# Change PATCH_CHECKOUT to be the branch you want to test. The test will
+# do a git checkout of this branch before starting. Obviously both
+# PATCH_START and PATCH_END must be in this branch (and PATCH_START must
+# be contained by PATCH_END).
+
+PATCH_CHECKOUT := test/branch
+
+# Usually it's a good idea to have a set config to use for testing individual
+# patches.
+PATCH_CONFIG := ${CONFIG_DIR}/config-patchcheck
+
+# Change PATCH_TEST to run some test for each patch. Each commit that is
+# tested, after it is built and installed on the test machine, this command
+# will be executed. Usually what is done is to ssh to the target box and
+# run some test scripts. If you just want to boot test your patches
+# comment PATCH_TEST out.
+PATCH_TEST := ${SSH} "/usr/local/bin/ktest-test-script"
+
+DEFAULTS IF DEFINED PATCH_TEST
+PATCH_TEST_TYPE := test
+
+DEFAULTS ELSE
+PATCH_TEST_TYPE := boot
+
+# If for some reason a file has a warning that one of your patches touch
+# but you do not care about it, set IGNORE_WARNINGS to that commit(s)
+# (space delimited)
+#IGNORE_WARNINGS = 39eaf7ef884dcc44f7ff1bac803ca2a1dcf43544 6edb2a8a385f0cdef51dae37ff23e74d76d8a6ce
+
+# Instead of just checking for warnings to files that are changed
+# it can be advantageous to check for any new warnings. If a
+# header file is changed, it could cause a warning in a file not
+# touched by the commit. To detect these kinds of warnings, you
+# can use the WARNINGS_FILE option.
+#
+# If the variable CREATE_WARNINGS_FILE is set, this config will
+# enable the WARNINGS_FILE during the patchcheck test. Also,
+# before running the patchcheck test, it will create the
+# warnings file.
+#
+DEFAULTS IF DEFINED CREATE_WARNINGS_FILE
+WARNINGS_FILE = ${OUTPUT_DIR}/warnings_file
+
+TEST_START IF DEFINED CREATE_WARNINGS_FILE
+# WARNINGS_FILE is already set by the DEFAULTS above
+TEST_TYPE = make_warnings_file
+# Checkout the commit before the patches to test,
+# and record all the warnings that exist before the patches
+# to test are added
+CHECKOUT = ${PATCHCHECK_START}~1
+# Force a full build
+BUILD_NOCLEAN = 0
+BUILD_TYPE = ${DO_BUILD_TYPE}
+
+# If you are running a multi test, and the test failed on the first
+# test but on, say the 5th patch. If you want to restart on the
+# fifth patch, set PATCH_START1. This will make the first test start
+# from this commit instead of the PATCH_START commit.
+# Note, do not change this option. Just define PATCH_START1 in the
+# top config (the one you pass to ktest.pl), and this will use it,
+# otherwise it will just use PATCH_START if PATCH_START1 is not defined.
+DEFAULTS IF NOT DEFINED PATCH_START1
+PATCH_START1 := ${PATCH_START}
+
+TEST_START IF ${TEST} == patchcheck
+TEST_TYPE = patchcheck
+MIN_CONFIG = ${PATCH_CONFIG}
+TEST = ${PATCH_TEST}
+PATCHCHECK_TYPE = ${PATCH_TEST_TYPE}
+PATCHCHECK_START = ${PATCH_START1}
+PATCHCHECK_END = ${PATCH_END}
+CHECKOUT = ${PATCH_CHECKOUT}
+BUILD_TYPE = ${DO_BUILD_TYPE}
+
+TEST_START IF ${TEST} == patchcheck && ${MULTI}
+TEST_TYPE = patchcheck
+MIN_CONFIG = ${PATCH_CONFIG}
+TEST = ${PATCH_TEST}
+PATCHCHECK_TYPE = ${PATCH_TEST_TYPE}
+PATCHCHECK_START = ${PATCH_START}
+PATCHCHECK_END = ${PATCH_END}
+CHECKOUT = ${PATCH_CHECKOUT}
+# Use multi to test different compilers?
+MAKE_CMD = CC=gcc-4.5.1 make
+BUILD_TYPE = ${DO_BUILD_TYPE}
diff --git a/tools/testing/ktest/examples/include/tests.conf b/tools/testing/ktest/examples/include/tests.conf
new file mode 100644
index 0000000..60cedb1
--- /dev/null
+++ b/tools/testing/ktest/examples/include/tests.conf
@@ -0,0 +1,74 @@
+#
+# This is an example of various tests that you can run
+#
+# The variable TEST can be of boot, build, randconfig, or test.
+#
+# Note that TEST is a variable created with ':=' and only exists
+# throughout the config processing (not during the tests itself).
+#
+# The TEST option (defined with '=') is used to tell ktest.pl
+# what test to run after a successful boot. The TEST option is
+# persistent into the test runs.
+#
+
+# The config that includes this file may define a BOOT_TYPE
+# variable that tells this config what type of boot test to run.
+# If it's not defined, the below DEFAULTS will set the default
+# to 'oldconfig'.
+#
+DEFAULTS IF NOT DEFINED BOOT_TYPE
+BOOT_TYPE := oldconfig
+
+# The config that includes this file may define a RUN_TEST
+# variable that will tell this config what test to run.
+# (what to set the TEST option to).
+#
+DEFAULTS IF NOT DEFINED RUN_TEST
+# Requires that hackbench is in the PATH
+RUN_TEST := ${SSH} hackbench 50
+
+
+# If TEST is set to 'boot' then just build a kernel and boot
+# the target.
+TEST_START IF ${TEST} == boot
+TEST_TYPE = boot
+# Notice how we set the BUILD_TYPE option to the BOOT_TYPE variable.
+BUILD_TYPE = ${BOOT_TYPE}
+# Do not do a make mrproper.
+BUILD_NOCLEAN = 1
+
+# If you only want to build the kernel, and perhaps install
+# and test it yourself, then just set TEST to build.
+TEST_START IF ${TEST} == build
+TEST_TYPE = build
+BUILD_TYPE = ${BOOT_TYPE}
+BUILD_NOCLEAN = 1
+
+# Build, install, boot and test with a randconfg 10 times.
+# It is important that you have set MIN_CONFIG in the config
+# that includes this file otherwise it is likely that the
+# randconfig will not have the necessary configs needed to
+# boot your box. This version of the test requires a min
+# config that has enough to make sure the target has network
+# working.
+TEST_START ITERATE 10 IF ${TEST} == randconfig
+MIN_CONFIG = ${CONFIG_DIR}/config-min-net
+TEST_TYPE = test
+BUILD_TYPE = randconfig
+TEST = ${RUN_TEST}
+
+# This is the same as above, but only tests to a boot prompt.
+# The MIN_CONFIG used here does not need to have networking
+# working.
+TEST_START ITERATE 10 IF ${TEST} == randconfig && ${MULTI}
+TEST_TYPE = boot
+BUILD_TYPE = randconfig
+MIN_CONFIG = ${CONFIG_DIR}/config-min
+MAKE_CMD = make
+
+# This builds, installs, boots and tests the target.
+TEST_START IF ${TEST} == test
+TEST_TYPE = test
+BUILD_TYPE = ${BOOT_TYPE}
+TEST = ${RUN_TEST}
+BUILD_NOCLEAN = 1
diff --git a/tools/testing/ktest/examples/kvm.conf b/tools/testing/ktest/examples/kvm.conf
new file mode 100644
index 0000000..fbc134f
--- /dev/null
+++ b/tools/testing/ktest/examples/kvm.conf
@@ -0,0 +1,92 @@
+#
+# This config is an example usage of ktest.pl with a kvm guest
+#
+# The guest is called 'Guest' and this would be something that
+# could be run on the host to test a virtual machine target.
+
+MACHINE = Guest
+
+
+# Use virsh to read the serial console of the guest
+CONSOLE = virsh console ${MACHINE}
+
+# Use SIGKILL to terminate virsh console. We can't kill virsh console
+# by the default signal, SIGINT.
+CLOSE_CONSOLE_SIGNAL = KILL
+
+#*************************************#
+# This part is the same as test.conf #
+#*************************************#
+
+# The include files will set up the type of test to run. Just set TEST to
+# which test you want to run.
+#
+# TESTS = patchcheck, randconfig, boot, test, config-bisect, bisect, min-config
+#
+# See the include/*.conf files that define these tests
+#
+TEST := patchcheck
+
+# Some tests may have more than one test to run. Define MULTI := 1 to run
+# the extra tests.
+MULTI := 0
+
+# In case you want to differentiate which type of system you are testing
+BITS := 64
+
+# REBOOT = none, error, fail, empty
+# See include/defaults.conf
+REBOOT := empty
+
+
+# The defaults file will set up various settings that can be used by all
+# machine configs.
+INCLUDE include/defaults.conf
+
+
+#*************************************#
+# Now we are different from test.conf #
+#*************************************#
+
+
+# The example here assumes that Guest is running a Fedora release
+# that uses dracut for its initfs. The POST_INSTALL will be executed
+# after the install of the kernel and modules are complete.
+#
+POST_INSTALL = ${SSH} /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION
+
+# Guests sometimes get stuck on reboot. We wait 3 seconds after running
+# the reboot command and then do a full power-cycle of the guest.
+# This forces the guest to restart.
+#
+POWERCYCLE_AFTER_REBOOT = 3
+
+# We do the same after the halt command, but this time we wait 20 seconds.
+POWEROFF_AFTER_HALT = 20
+
+
+# As the defaults.conf file has a POWER_CYCLE option already defined,
+# and options can not be defined in the same section more than once
+# (all DEFAULTS sections are considered the same). We use the
+# DEFAULTS OVERRIDE to tell ktest.pl to ignore the previous defined
+# options, for the options set in the OVERRIDE section.
+#
+DEFAULTS OVERRIDE
+
+# Instead of using the default POWER_CYCLE option defined in
+# defaults.conf, we use virsh to cycle it. To do so, we destroy
+# the guest, wait 5 seconds, and then start it up again.
+# Crude, but effective.
+#
+POWER_CYCLE = virsh destroy ${MACHINE}; sleep 5; virsh start ${MACHINE}
+
+
+DEFAULTS
+
+# The following files each handle a different test case.
+# Having them included allows you to set up more than one machine and share
+# the same tests.
+INCLUDE include/patchcheck.conf
+INCLUDE include/tests.conf
+INCLUDE include/bisect.conf
+INCLUDE include/min-config.conf
diff --git a/tools/testing/ktest/examples/snowball.conf b/tools/testing/ktest/examples/snowball.conf
new file mode 100644
index 0000000..a82a3c5
--- /dev/null
+++ b/tools/testing/ktest/examples/snowball.conf
@@ -0,0 +1,53 @@
+# This example was used to boot the snowball ARM board.
+# See http://people.redhat.com/srostedt/ktest-embedded-2012/
+
+# PWD is a ktest.pl variable that will result in the process working
+# directory that ktest.pl is executed in.
+
+# THIS_DIR is automatically assigned the PWD of the path that generated
+# the config file. It is best to use this variable when assigning other
+# directory paths within this directory. This allows you to easily
+# move the test cases to other locations or to other machines.
+#
+THIS_DIR := /home/rostedt/work/demo/ktest-embed
+LOG_FILE = ${OUTPUT_DIR}/snowball.log
+CLEAR_LOG = 1
+MAKE_CMD = PATH=/usr/local/gcc-4.5.2-nolibc/arm-unknown-linux-gnueabi/bin:$PATH CROSS_COMPILE=arm-unknown-linux-gnueabi- make ARCH=arm
+ADD_CONFIG = ${THIS_DIR}/addconfig
+
+SCP_TO_TARGET = echo "don't do scp"
+
+TFTPBOOT := /var/lib/tftpboot
+TFTPDEF := ${TFTPBOOT}/snowball-default
+TFTPTEST := ${OUTPUT_DIR}/${BUILD_TARGET}
+
+SWITCH_TO_GOOD = cp ${TFTPDEF} ${TARGET_IMAGE}
+SWITCH_TO_TEST = cp ${TFTPTEST} ${TARGET_IMAGE}
+
+# Define each test with TEST_START
+# The config options below it will override the defaults
+TEST_START SKIP
+TEST_TYPE = boot
+BUILD_TYPE = u8500_defconfig
+BUILD_NOCLEAN = 1
+
+TEST_START
+TEST_TYPE = make_min_config
+OUTPUT_MIN_CONFIG = ${THIS_DIR}/config.newmin
+START_MIN_CONFIG = ${THIS_DIR}/config.orig
+IGNORE_CONFIG = ${THIS_DIR}/config.ignore
+BUILD_NOCLEAN = 1
+
+
+DEFAULTS
+LOCALVERSION = -test
+POWER_CYCLE = echo use the thumb luke; read a
+CONSOLE = cat ${THIS_DIR}/snowball-cat
+REBOOT_TYPE = script
+SSH_USER = root
+BUILD_OPTIONS = -j8 uImage
+BUILD_DIR = ${THIS_DIR}/linux.git
+OUTPUT_DIR = ${THIS_DIR}/snowball-build
+MACHINE = snowball
+TARGET_IMAGE = /var/lib/tftpboot/snowball-image
+BUILD_TARGET = arch/arm/boot/uImage
diff --git a/tools/testing/ktest/examples/test.conf b/tools/testing/ktest/examples/test.conf
new file mode 100644
index 0000000..b725210
--- /dev/null
+++ b/tools/testing/ktest/examples/test.conf
@@ -0,0 +1,62 @@
+#
+# Generic config for a machine
+#
+
+# Name your machine (the DNS name, what you ssh to)
+MACHINE = foo
+
+# BOX can be different than foo, if the machine BOX has
+# multiple partitions with different systems installed. For example,
+# you may have a i386 and x86_64 installation on a test box.
+# If this is the case, MACHINE defines the way to connect to the
+# machine, which may be different between which system the machine
+# is booting into. BOX is used for the scripts to reboot and power cycle
+# the machine, where it does not matter which system the machine boots into.
+#
+#BOX := bar
+
+# Define a way to read the console
+CONSOLE = stty -F /dev/ttyS0 115200 parodd; cat /dev/ttyS0
+
+# The include files will set up the type of test to run. Just set TEST to
+# which test you want to run.
+#
+# TESTS = patchcheck, randconfig, boot, test, config-bisect, bisect, min-config
+#
+# See the include/*.conf files that define these tests
+#
+TEST := patchcheck
+
+# Some tests may have more than one test to run. Define MULTI := 1 to run
+# the extra tests.
+MULTI := 0
+
+# In case you want to differentiate which type of system you are testing
+BITS := 64
+
+# REBOOT = none, error, fail, empty
+# See include/defaults.conf
+REBOOT := empty
+
+# The defaults file will set up various settings that can be used by all
+# machine configs.
+INCLUDE include/defaults.conf
+
+# In case you need to add a patch for a bisect or something
+#PRE_BUILD = patch -p1 < ${THIS_DIR}/fix.patch
+
+# Reset the repo after the build and remove all 'test' modules from the target
+# Notice that DO_POST_BUILD is a variable (defined by ':=') and POST_BUILD
+# is the option (defined by '=')
+
+DO_POST_BUILD := git reset --hard
+POST_BUILD = ${SSH} 'rm -rf /lib/modules/*-test*'; ${DO_POST_BUILD}
+
+# The following files each handle a different test case.
+# Having them included allows you to set up more than one machine and share
+# the same tests.
+INCLUDE include/patchcheck.conf
+INCLUDE include/tests.conf
+INCLUDE include/bisect.conf
+INCLUDE include/min-config.conf
+
diff --git a/tools/testing/ktest/ktest.pl b/tools/testing/ktest/ktest.pl
new file mode 100755
index 0000000..87af8a6
--- /dev/null
+++ b/tools/testing/ktest/ktest.pl
@@ -0,0 +1,4420 @@
+#!/usr/bin/perl -w
+#
+# Copyright 2010 - Steven Rostedt <srostedt@redhat.com>, Red Hat Inc.
+# Licensed under the terms of the GNU GPL License version 2
+#
+
+use strict;
+use IPC::Open2;
+use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
+use File::Path qw(mkpath);
+use File::Copy qw(cp);
+use FileHandle;
+use FindBin;
+
+my $VERSION = "0.2";
+
+$| = 1;
+
+my %opt;
+my %repeat_tests;
+my %repeats;
+my %evals;
+
+#default opts
+my %default = (
+ "MAILER" => "sendmail", # default mailer
+ "EMAIL_ON_ERROR" => 1,
+ "EMAIL_WHEN_FINISHED" => 1,
+ "EMAIL_WHEN_CANCELED" => 0,
+ "EMAIL_WHEN_STARTED" => 0,
+ "NUM_TESTS" => 1,
+ "TEST_TYPE" => "build",
+ "BUILD_TYPE" => "randconfig",
+ "MAKE_CMD" => "make",
+ "CLOSE_CONSOLE_SIGNAL" => "INT",
+ "TIMEOUT" => 120,
+ "TMP_DIR" => "/tmp/ktest/\${MACHINE}",
+ "SLEEP_TIME" => 60, # sleep time between tests
+ "BUILD_NOCLEAN" => 0,
+ "REBOOT_ON_ERROR" => 0,
+ "POWEROFF_ON_ERROR" => 0,
+ "REBOOT_ON_SUCCESS" => 1,
+ "POWEROFF_ON_SUCCESS" => 0,
+ "BUILD_OPTIONS" => "",
+ "BISECT_SLEEP_TIME" => 60, # sleep time between bisects
+ "PATCHCHECK_SLEEP_TIME" => 60, # sleep time between patch checks
+ "CLEAR_LOG" => 0,
+ "BISECT_MANUAL" => 0,
+ "BISECT_SKIP" => 1,
+ "BISECT_TRIES" => 1,
+ "MIN_CONFIG_TYPE" => "boot",
+ "SUCCESS_LINE" => "login:",
+ "DETECT_TRIPLE_FAULT" => 1,
+ "NO_INSTALL" => 0,
+ "BOOTED_TIMEOUT" => 1,
+ "DIE_ON_FAILURE" => 1,
+ "SSH_EXEC" => "ssh \$SSH_USER\@\$MACHINE \$SSH_COMMAND",
+ "SCP_TO_TARGET" => "scp \$SRC_FILE \$SSH_USER\@\$MACHINE:\$DST_FILE",
+ "SCP_TO_TARGET_INSTALL" => "\${SCP_TO_TARGET}",
+ "REBOOT" => "ssh \$SSH_USER\@\$MACHINE reboot",
+ "STOP_AFTER_SUCCESS" => 10,
+ "STOP_AFTER_FAILURE" => 60,
+ "STOP_TEST_AFTER" => 600,
+ "MAX_MONITOR_WAIT" => 1800,
+ "GRUB_REBOOT" => "grub2-reboot",
+ "SYSLINUX" => "extlinux",
+ "SYSLINUX_PATH" => "/boot/extlinux",
+ "CONNECT_TIMEOUT" => 25,
+
+# required, and we will ask users if they don't have them but we keep the default
+# value something that is common.
+ "REBOOT_TYPE" => "grub",
+ "LOCALVERSION" => "-test",
+ "SSH_USER" => "root",
+ "BUILD_TARGET" => "arch/x86/boot/bzImage",
+ "TARGET_IMAGE" => "/boot/vmlinuz-test",
+
+ "LOG_FILE" => undef,
+ "IGNORE_UNUSED" => 0,
+);
+
+my $ktest_config = "ktest.conf";
+my $version;
+my $have_version = 0;
+my $machine;
+my $last_machine;
+my $ssh_user;
+my $tmpdir;
+my $builddir;
+my $outputdir;
+my $output_config;
+my $test_type;
+my $build_type;
+my $build_options;
+my $final_post_ktest;
+my $pre_ktest;
+my $post_ktest;
+my $pre_test;
+my $post_test;
+my $pre_build;
+my $post_build;
+my $pre_build_die;
+my $post_build_die;
+my $reboot_type;
+my $reboot_script;
+my $power_cycle;
+my $reboot;
+my $reboot_on_error;
+my $switch_to_good;
+my $switch_to_test;
+my $poweroff_on_error;
+my $reboot_on_success;
+my $die_on_failure;
+my $powercycle_after_reboot;
+my $poweroff_after_halt;
+my $max_monitor_wait;
+my $ssh_exec;
+my $scp_to_target;
+my $scp_to_target_install;
+my $power_off;
+my $grub_menu;
+my $last_grub_menu;
+my $grub_file;
+my $grub_number;
+my $grub_reboot;
+my $syslinux;
+my $syslinux_path;
+my $syslinux_label;
+my $target;
+my $make;
+my $pre_install;
+my $post_install;
+my $no_install;
+my $noclean;
+my $minconfig;
+my $start_minconfig;
+my $start_minconfig_defined;
+my $output_minconfig;
+my $minconfig_type;
+my $use_output_minconfig;
+my $warnings_file;
+my $ignore_config;
+my $ignore_errors;
+my $addconfig;
+my $in_bisect = 0;
+my $bisect_bad_commit = "";
+my $reverse_bisect;
+my $bisect_manual;
+my $bisect_skip;
+my $bisect_tries;
+my $config_bisect_good;
+my $bisect_ret_good;
+my $bisect_ret_bad;
+my $bisect_ret_skip;
+my $bisect_ret_abort;
+my $bisect_ret_default;
+my $in_patchcheck = 0;
+my $run_test;
+my $buildlog;
+my $testlog;
+my $dmesg;
+my $monitor_fp;
+my $monitor_pid;
+my $monitor_cnt = 0;
+my $sleep_time;
+my $bisect_sleep_time;
+my $patchcheck_sleep_time;
+my $ignore_warnings;
+my $store_failures;
+my $store_successes;
+my $test_name;
+my $timeout;
+my $connect_timeout;
+my $config_bisect_exec;
+my $booted_timeout;
+my $detect_triplefault;
+my $console;
+my $close_console_signal;
+my $reboot_success_line;
+my $success_line;
+my $stop_after_success;
+my $stop_after_failure;
+my $stop_test_after;
+my $build_target;
+my $target_image;
+my $checkout;
+my $localversion;
+my $iteration = 0;
+my $successes = 0;
+my $stty_orig;
+my $run_command_status = 0;
+
+my $bisect_good;
+my $bisect_bad;
+my $bisect_type;
+my $bisect_start;
+my $bisect_replay;
+my $bisect_files;
+my $bisect_reverse;
+my $bisect_check;
+
+my $config_bisect;
+my $config_bisect_type;
+my $config_bisect_check;
+
+my $patchcheck_type;
+my $patchcheck_start;
+my $patchcheck_cherry;
+my $patchcheck_end;
+
+my $build_time;
+my $install_time;
+my $reboot_time;
+my $test_time;
+
+my $pwd;
+my $dirname = $FindBin::Bin;
+
+my $mailto;
+my $mailer;
+my $mail_path;
+my $mail_command;
+my $email_on_error;
+my $email_when_finished;
+my $email_when_started;
+my $email_when_canceled;
+
+my $script_start_time = localtime();
+
+# set when a test is something other that just building or install
+# which would require more options.
+my $buildonly = 1;
+
+# tell build not to worry about warnings, even when WARNINGS_FILE is set
+my $warnings_ok = 0;
+
+# set when creating a new config
+my $newconfig = 0;
+
+my %entered_configs;
+my %config_help;
+my %variable;
+
+# force_config is the list of configs that we force enabled (or disabled)
+# in a .config file. The MIN_CONFIG and ADD_CONFIG configs.
+my %force_config;
+
+# do not force reboots on config problems
+my $no_reboot = 1;
+
+# reboot on success
+my $reboot_success = 0;
+
+my %option_map = (
+ "MAILTO" => \$mailto,
+ "MAILER" => \$mailer,
+ "MAIL_PATH" => \$mail_path,
+ "MAIL_COMMAND" => \$mail_command,
+ "EMAIL_ON_ERROR" => \$email_on_error,
+ "EMAIL_WHEN_FINISHED" => \$email_when_finished,
+ "EMAIL_WHEN_STARTED" => \$email_when_started,
+ "EMAIL_WHEN_CANCELED" => \$email_when_canceled,
+ "MACHINE" => \$machine,
+ "SSH_USER" => \$ssh_user,
+ "TMP_DIR" => \$tmpdir,
+ "OUTPUT_DIR" => \$outputdir,
+ "BUILD_DIR" => \$builddir,
+ "TEST_TYPE" => \$test_type,
+ "PRE_KTEST" => \$pre_ktest,
+ "POST_KTEST" => \$post_ktest,
+ "PRE_TEST" => \$pre_test,
+ "POST_TEST" => \$post_test,
+ "BUILD_TYPE" => \$build_type,
+ "BUILD_OPTIONS" => \$build_options,
+ "PRE_BUILD" => \$pre_build,
+ "POST_BUILD" => \$post_build,
+ "PRE_BUILD_DIE" => \$pre_build_die,
+ "POST_BUILD_DIE" => \$post_build_die,
+ "POWER_CYCLE" => \$power_cycle,
+ "REBOOT" => \$reboot,
+ "BUILD_NOCLEAN" => \$noclean,
+ "MIN_CONFIG" => \$minconfig,
+ "OUTPUT_MIN_CONFIG" => \$output_minconfig,
+ "START_MIN_CONFIG" => \$start_minconfig,
+ "MIN_CONFIG_TYPE" => \$minconfig_type,
+ "USE_OUTPUT_MIN_CONFIG" => \$use_output_minconfig,
+ "WARNINGS_FILE" => \$warnings_file,
+ "IGNORE_CONFIG" => \$ignore_config,
+ "TEST" => \$run_test,
+ "ADD_CONFIG" => \$addconfig,
+ "REBOOT_TYPE" => \$reboot_type,
+ "GRUB_MENU" => \$grub_menu,
+ "GRUB_FILE" => \$grub_file,
+ "GRUB_REBOOT" => \$grub_reboot,
+ "SYSLINUX" => \$syslinux,
+ "SYSLINUX_PATH" => \$syslinux_path,
+ "SYSLINUX_LABEL" => \$syslinux_label,
+ "PRE_INSTALL" => \$pre_install,
+ "POST_INSTALL" => \$post_install,
+ "NO_INSTALL" => \$no_install,
+ "REBOOT_SCRIPT" => \$reboot_script,
+ "REBOOT_ON_ERROR" => \$reboot_on_error,
+ "SWITCH_TO_GOOD" => \$switch_to_good,
+ "SWITCH_TO_TEST" => \$switch_to_test,
+ "POWEROFF_ON_ERROR" => \$poweroff_on_error,
+ "REBOOT_ON_SUCCESS" => \$reboot_on_success,
+ "DIE_ON_FAILURE" => \$die_on_failure,
+ "POWER_OFF" => \$power_off,
+ "POWERCYCLE_AFTER_REBOOT" => \$powercycle_after_reboot,
+ "POWEROFF_AFTER_HALT" => \$poweroff_after_halt,
+ "MAX_MONITOR_WAIT" => \$max_monitor_wait,
+ "SLEEP_TIME" => \$sleep_time,
+ "BISECT_SLEEP_TIME" => \$bisect_sleep_time,
+ "PATCHCHECK_SLEEP_TIME" => \$patchcheck_sleep_time,
+ "IGNORE_WARNINGS" => \$ignore_warnings,
+ "IGNORE_ERRORS" => \$ignore_errors,
+ "BISECT_MANUAL" => \$bisect_manual,
+ "BISECT_SKIP" => \$bisect_skip,
+ "BISECT_TRIES" => \$bisect_tries,
+ "CONFIG_BISECT_GOOD" => \$config_bisect_good,
+ "BISECT_RET_GOOD" => \$bisect_ret_good,
+ "BISECT_RET_BAD" => \$bisect_ret_bad,
+ "BISECT_RET_SKIP" => \$bisect_ret_skip,
+ "BISECT_RET_ABORT" => \$bisect_ret_abort,
+ "BISECT_RET_DEFAULT" => \$bisect_ret_default,
+ "STORE_FAILURES" => \$store_failures,
+ "STORE_SUCCESSES" => \$store_successes,
+ "TEST_NAME" => \$test_name,
+ "TIMEOUT" => \$timeout,
+ "CONNECT_TIMEOUT" => \$connect_timeout,
+ "CONFIG_BISECT_EXEC" => \$config_bisect_exec,
+ "BOOTED_TIMEOUT" => \$booted_timeout,
+ "CONSOLE" => \$console,
+ "CLOSE_CONSOLE_SIGNAL" => \$close_console_signal,
+ "DETECT_TRIPLE_FAULT" => \$detect_triplefault,
+ "SUCCESS_LINE" => \$success_line,
+ "REBOOT_SUCCESS_LINE" => \$reboot_success_line,
+ "STOP_AFTER_SUCCESS" => \$stop_after_success,
+ "STOP_AFTER_FAILURE" => \$stop_after_failure,
+ "STOP_TEST_AFTER" => \$stop_test_after,
+ "BUILD_TARGET" => \$build_target,
+ "SSH_EXEC" => \$ssh_exec,
+ "SCP_TO_TARGET" => \$scp_to_target,
+ "SCP_TO_TARGET_INSTALL" => \$scp_to_target_install,
+ "CHECKOUT" => \$checkout,
+ "TARGET_IMAGE" => \$target_image,
+ "LOCALVERSION" => \$localversion,
+
+ "BISECT_GOOD" => \$bisect_good,
+ "BISECT_BAD" => \$bisect_bad,
+ "BISECT_TYPE" => \$bisect_type,
+ "BISECT_START" => \$bisect_start,
+ "BISECT_REPLAY" => \$bisect_replay,
+ "BISECT_FILES" => \$bisect_files,
+ "BISECT_REVERSE" => \$bisect_reverse,
+ "BISECT_CHECK" => \$bisect_check,
+
+ "CONFIG_BISECT" => \$config_bisect,
+ "CONFIG_BISECT_TYPE" => \$config_bisect_type,
+ "CONFIG_BISECT_CHECK" => \$config_bisect_check,
+
+ "PATCHCHECK_TYPE" => \$patchcheck_type,
+ "PATCHCHECK_START" => \$patchcheck_start,
+ "PATCHCHECK_CHERRY" => \$patchcheck_cherry,
+ "PATCHCHECK_END" => \$patchcheck_end,
+);
+
+# Options may be used by other options, record them.
+my %used_options;
+
+# default variables that can be used
+chomp ($variable{"PWD"} = `pwd`);
+$pwd = $variable{"PWD"};
+
+$config_help{"MACHINE"} = << "EOF"
+ The machine hostname that you will test.
+ For build only tests, it is still needed to differentiate log files.
+EOF
+ ;
+$config_help{"SSH_USER"} = << "EOF"
+ The box is expected to have ssh on normal bootup, provide the user
+ (most likely root, since you need privileged operations)
+EOF
+ ;
+$config_help{"BUILD_DIR"} = << "EOF"
+ The directory that contains the Linux source code (full path).
+ You can use \${PWD} that will be the path where ktest.pl is run, or use
+ \${THIS_DIR} which is assigned \${PWD} but may be changed later.
+EOF
+ ;
+$config_help{"OUTPUT_DIR"} = << "EOF"
+ The directory that the objects will be built (full path).
+ (can not be same as BUILD_DIR)
+ You can use \${PWD} that will be the path where ktest.pl is run, or use
+ \${THIS_DIR} which is assigned \${PWD} but may be changed later.
+EOF
+ ;
+$config_help{"BUILD_TARGET"} = << "EOF"
+ The location of the compiled file to copy to the target.
+ (relative to OUTPUT_DIR)
+EOF
+ ;
+$config_help{"BUILD_OPTIONS"} = << "EOF"
+ Options to add to \"make\" when building.
+ i.e. -j20
+EOF
+ ;
+$config_help{"TARGET_IMAGE"} = << "EOF"
+ The place to put your image on the test machine.
+EOF
+ ;
+$config_help{"POWER_CYCLE"} = << "EOF"
+ A script or command to reboot the box.
+
+ Here is a digital loggers power switch example
+ POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin\@power/outlet?5=CCL'
+
+ Here is an example to reboot a virtual box on the current host
+ with the name "Guest".
+ POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
+EOF
+ ;
+$config_help{"CONSOLE"} = << "EOF"
+ The script or command that reads the console
+
+ If you use ttywatch server, something like the following would work.
+CONSOLE = nc -d localhost 3001
+
+ For a virtual machine with guest name "Guest".
+CONSOLE = virsh console Guest
+EOF
+ ;
+$config_help{"LOCALVERSION"} = << "EOF"
+ Required version ending to differentiate the test
+ from other linux builds on the system.
+EOF
+ ;
+$config_help{"REBOOT_TYPE"} = << "EOF"
+ Way to reboot the box to the test kernel.
+ Only valid options so far are "grub", "grub2", "syslinux", and "script".
+
+ If you specify grub, it will assume grub version 1
+ and will search in /boot/grub/menu.lst for the title \$GRUB_MENU
+ and select that target to reboot to the kernel. If this is not
+ your setup, then specify "script" and have a command or script
+ specified in REBOOT_SCRIPT to boot to the target.
+
+ The entry in /boot/grub/menu.lst must be entered in manually.
+ The test will not modify that file.
+
+ If you specify grub2, then you also need to specify both \$GRUB_MENU
+ and \$GRUB_FILE.
+
+ If you specify syslinux, then you may use SYSLINUX to define the syslinux
+ command (defaults to extlinux), and SYSLINUX_PATH to specify the path to
+ the syslinux install (defaults to /boot/extlinux). But you have to specify
+ SYSLINUX_LABEL to define the label to boot to for the test kernel.
+EOF
+ ;
+$config_help{"GRUB_MENU"} = << "EOF"
+ The grub title name for the test kernel to boot
+ (Only mandatory if REBOOT_TYPE = grub or grub2)
+
+ Note, ktest.pl will not update the grub menu.lst, you need to
+ manually add an option for the test. ktest.pl will search
+ the grub menu.lst for this option to find what kernel to
+ reboot into.
+
+ For example, if in the /boot/grub/menu.lst the test kernel title has:
+ title Test Kernel
+ kernel vmlinuz-test
+ GRUB_MENU = Test Kernel
+
+ For grub2, a search of \$GRUB_FILE is performed for the lines
+ that begin with "menuentry". It will not detect submenus. The
+ menu must be a non-nested menu. Add the quotes used in the menu
+ to guarantee your selection, as the first menuentry with the content
+ of \$GRUB_MENU that is found will be used.
+EOF
+ ;
+$config_help{"GRUB_FILE"} = << "EOF"
+ If grub2 is used, the full path for the grub.cfg file is placed
+ here. Use something like /boot/grub2/grub.cfg to search.
+EOF
+ ;
+$config_help{"SYSLINUX_LABEL"} = << "EOF"
+ If syslinux is used, the label that boots the target kernel must
+ be specified with SYSLINUX_LABEL.
+EOF
+ ;
+$config_help{"REBOOT_SCRIPT"} = << "EOF"
+ A script to reboot the target into the test kernel
+ (Only mandatory if REBOOT_TYPE = script)
+EOF
+ ;
+
+sub _logit {
+ if (defined($opt{"LOG_FILE"})) {
+ open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
+ print OUT @_;
+ close(OUT);
+ }
+}
+
+sub logit {
+ if (defined($opt{"LOG_FILE"})) {
+ _logit @_;
+ } else {
+ print @_;
+ }
+}
+
+sub doprint {
+ print @_;
+ _logit @_;
+}
+
+sub read_prompt {
+ my ($cancel, $prompt) = @_;
+
+ my $ans;
+
+ for (;;) {
+ if ($cancel) {
+ print "$prompt [y/n/C] ";
+ } else {
+ print "$prompt [Y/n] ";
+ }
+ $ans = <STDIN>;
+ chomp $ans;
+ if ($ans =~ /^\s*$/) {
+ if ($cancel) {
+ $ans = "c";
+ } else {
+ $ans = "y";
+ }
+ }
+ last if ($ans =~ /^y$/i || $ans =~ /^n$/i);
+ if ($cancel) {
+ last if ($ans =~ /^c$/i);
+ print "Please answer either 'y', 'n' or 'c'.\n";
+ } else {
+ print "Please answer either 'y' or 'n'.\n";
+ }
+ }
+ if ($ans =~ /^c/i) {
+ exit;
+ }
+ if ($ans !~ /^y$/i) {
+ return 0;
+ }
+ return 1;
+}
+
+sub read_yn {
+ my ($prompt) = @_;
+
+ return read_prompt 0, $prompt;
+}
+
+sub read_ync {
+ my ($prompt) = @_;
+
+ return read_prompt 1, $prompt;
+}
+
+sub get_mandatory_config {
+ my ($config) = @_;
+ my $ans;
+
+ return if (defined($opt{$config}));
+
+ if (defined($config_help{$config})) {
+ print "\n";
+ print $config_help{$config};
+ }
+
+ for (;;) {
+ print "$config = ";
+ if (defined($default{$config}) && length($default{$config})) {
+ print "\[$default{$config}\] ";
+ }
+ $ans = <STDIN>;
+ $ans =~ s/^\s*(.*\S)\s*$/$1/;
+ if ($ans =~ /^\s*$/) {
+ if ($default{$config}) {
+ $ans = $default{$config};
+ } else {
+ print "Your answer can not be blank\n";
+ next;
+ }
+ }
+ $entered_configs{$config} = ${ans};
+ last;
+ }
+}
+
+sub show_time {
+ my ($time) = @_;
+
+ my $hours = 0;
+ my $minutes = 0;
+
+ if ($time > 3600) {
+ $hours = int($time / 3600);
+ $time -= $hours * 3600;
+ }
+ if ($time > 60) {
+ $minutes = int($time / 60);
+ $time -= $minutes * 60;
+ }
+
+ if ($hours > 0) {
+ doprint "$hours hour";
+ doprint "s" if ($hours > 1);
+ doprint " ";
+ }
+
+ if ($minutes > 0) {
+ doprint "$minutes minute";
+ doprint "s" if ($minutes > 1);
+ doprint " ";
+ }
+
+ doprint "$time second";
+ doprint "s" if ($time != 1);
+}
+
+sub print_times {
+ doprint "\n";
+ if ($build_time) {
+ doprint "Build time: ";
+ show_time($build_time);
+ doprint "\n";
+ }
+ if ($install_time) {
+ doprint "Install time: ";
+ show_time($install_time);
+ doprint "\n";
+ }
+ if ($reboot_time) {
+ doprint "Reboot time: ";
+ show_time($reboot_time);
+ doprint "\n";
+ }
+ if ($test_time) {
+ doprint "Test time: ";
+ show_time($test_time);
+ doprint "\n";
+ }
+ # reset for iterations like bisect
+ $build_time = 0;
+ $install_time = 0;
+ $reboot_time = 0;
+ $test_time = 0;
+}
+
+sub get_mandatory_configs {
+ get_mandatory_config("MACHINE");
+ get_mandatory_config("BUILD_DIR");
+ get_mandatory_config("OUTPUT_DIR");
+
+ if ($newconfig) {
+ get_mandatory_config("BUILD_OPTIONS");
+ }
+
+ # options required for other than just building a kernel
+ if (!$buildonly) {
+ get_mandatory_config("POWER_CYCLE");
+ get_mandatory_config("CONSOLE");
+ }
+
+ # options required for install and more
+ if ($buildonly != 1) {
+ get_mandatory_config("SSH_USER");
+ get_mandatory_config("BUILD_TARGET");
+ get_mandatory_config("TARGET_IMAGE");
+ }
+
+ get_mandatory_config("LOCALVERSION");
+
+ return if ($buildonly);
+
+ my $rtype = $opt{"REBOOT_TYPE"};
+
+ if (!defined($rtype)) {
+ if (!defined($opt{"GRUB_MENU"})) {
+ get_mandatory_config("REBOOT_TYPE");
+ $rtype = $entered_configs{"REBOOT_TYPE"};
+ } else {
+ $rtype = "grub";
+ }
+ }
+
+ if ($rtype eq "grub") {
+ get_mandatory_config("GRUB_MENU");
+ }
+
+ if ($rtype eq "grub2") {
+ get_mandatory_config("GRUB_MENU");
+ get_mandatory_config("GRUB_FILE");
+ }
+
+ if ($rtype eq "syslinux") {
+ get_mandatory_config("SYSLINUX_LABEL");
+ }
+}
+
+sub process_variables {
+ my ($value, $remove_undef) = @_;
+ my $retval = "";
+
+ # We want to check for '\', and it is just easier
+ # to check the previous characet of '$' and not need
+ # to worry if '$' is the first character. By adding
+ # a space to $value, we can just check [^\\]\$ and
+ # it will still work.
+ $value = " $value";
+
+ while ($value =~ /(.*?[^\\])\$\{(.*?)\}(.*)/) {
+ my $begin = $1;
+ my $var = $2;
+ my $end = $3;
+ # append beginning of value to retval
+ $retval = "$retval$begin";
+ if (defined($variable{$var})) {
+ $retval = "$retval$variable{$var}";
+ } elsif (defined($remove_undef) && $remove_undef) {
+ # for if statements, any variable that is not defined,
+ # we simple convert to 0
+ $retval = "${retval}0";
+ } else {
+ # put back the origin piece.
+ $retval = "$retval\$\{$var\}";
+ # This could be an option that is used later, save
+ # it so we don't warn if this option is not one of
+ # ktests options.
+ $used_options{$var} = 1;
+ }
+ $value = $end;
+ }
+ $retval = "$retval$value";
+
+ # remove the space added in the beginning
+ $retval =~ s/ //;
+
+ return "$retval"
+}
+
+sub set_value {
+ my ($lvalue, $rvalue, $override, $overrides, $name) = @_;
+
+ my $prvalue = process_variables($rvalue);
+
+ if ($lvalue =~ /^(TEST|BISECT|CONFIG_BISECT)_TYPE(\[.*\])?$/ &&
+ $prvalue !~ /^(config_|)bisect$/ &&
+ $prvalue !~ /^build$/ &&
+ $buildonly) {
+
+ # Note if a test is something other than build, then we
+ # will need other mandatory options.
+ if ($prvalue ne "install") {
+ $buildonly = 0;
+ } else {
+ # install still limits some mandatory options.
+ $buildonly = 2;
+ }
+ }
+
+ if (defined($opt{$lvalue})) {
+ if (!$override || defined(${$overrides}{$lvalue})) {
+ my $extra = "";
+ if ($override) {
+ $extra = "In the same override section!\n";
+ }
+ die "$name: $.: Option $lvalue defined more than once!\n$extra";
+ }
+ ${$overrides}{$lvalue} = $prvalue;
+ }
+
+ $opt{$lvalue} = $prvalue;
+}
+
+sub set_eval {
+ my ($lvalue, $rvalue, $name) = @_;
+
+ my $prvalue = process_variables($rvalue);
+ my $arr;
+
+ if (defined($evals{$lvalue})) {
+ $arr = $evals{$lvalue};
+ } else {
+ $arr = [];
+ $evals{$lvalue} = $arr;
+ }
+
+ push @{$arr}, $rvalue;
+}
+
+sub set_variable {
+ my ($lvalue, $rvalue) = @_;
+
+ if ($rvalue =~ /^\s*$/) {
+ delete $variable{$lvalue};
+ } else {
+ $rvalue = process_variables($rvalue);
+ $variable{$lvalue} = $rvalue;
+ }
+}
+
+sub process_compare {
+ my ($lval, $cmp, $rval) = @_;
+
+ # remove whitespace
+
+ $lval =~ s/^\s*//;
+ $lval =~ s/\s*$//;
+
+ $rval =~ s/^\s*//;
+ $rval =~ s/\s*$//;
+
+ if ($cmp eq "==") {
+ return $lval eq $rval;
+ } elsif ($cmp eq "!=") {
+ return $lval ne $rval;
+ } elsif ($cmp eq "=~") {
+ return $lval =~ m/$rval/;
+ } elsif ($cmp eq "!~") {
+ return $lval !~ m/$rval/;
+ }
+
+ my $statement = "$lval $cmp $rval";
+ my $ret = eval $statement;
+
+ # $@ stores error of eval
+ if ($@) {
+ return -1;
+ }
+
+ return $ret;
+}
+
+sub value_defined {
+ my ($val) = @_;
+
+ return defined($variable{$2}) ||
+ defined($opt{$2});
+}
+
+my $d = 0;
+sub process_expression {
+ my ($name, $val) = @_;
+
+ my $c = $d++;
+
+ while ($val =~ s/\(([^\(]*?)\)/\&\&\&\&VAL\&\&\&\&/) {
+ my $express = $1;
+
+ if (process_expression($name, $express)) {
+ $val =~ s/\&\&\&\&VAL\&\&\&\&/ 1 /;
+ } else {
+ $val =~ s/\&\&\&\&VAL\&\&\&\&/ 0 /;
+ }
+ }
+
+ $d--;
+ my $OR = "\\|\\|";
+ my $AND = "\\&\\&";
+
+ while ($val =~ s/^(.*?)($OR|$AND)//) {
+ my $express = $1;
+ my $op = $2;
+
+ if (process_expression($name, $express)) {
+ if ($op eq "||") {
+ return 1;
+ }
+ } else {
+ if ($op eq "&&") {
+ return 0;
+ }
+ }
+ }
+
+ if ($val =~ /(.*)(==|\!=|>=|<=|>|<|=~|\!~)(.*)/) {
+ my $ret = process_compare($1, $2, $3);
+ if ($ret < 0) {
+ die "$name: $.: Unable to process comparison\n";
+ }
+ return $ret;
+ }
+
+ if ($val =~ /^\s*(NOT\s*)?DEFINED\s+(\S+)\s*$/) {
+ if (defined $1) {
+ return !value_defined($2);
+ } else {
+ return value_defined($2);
+ }
+ }
+
+ if ($val =~ /^\s*0\s*$/) {
+ return 0;
+ } elsif ($val =~ /^\s*\d+\s*$/) {
+ return 1;
+ }
+
+ die ("$name: $.: Undefined content $val in if statement\n");
+}
+
+sub process_if {
+ my ($name, $value) = @_;
+
+ # Convert variables and replace undefined ones with 0
+ my $val = process_variables($value, 1);
+ my $ret = process_expression $name, $val;
+
+ return $ret;
+}
+
+sub __read_config {
+ my ($config, $current_test_num) = @_;
+
+ my $in;
+ open($in, $config) || die "can't read file $config";
+
+ my $name = $config;
+ $name =~ s,.*/(.*),$1,;
+
+ my $test_num = $$current_test_num;
+ my $default = 1;
+ my $repeat = 1;
+ my $num_tests_set = 0;
+ my $skip = 0;
+ my $rest;
+ my $line;
+ my $test_case = 0;
+ my $if = 0;
+ my $if_set = 0;
+ my $override = 0;
+
+ my %overrides;
+
+ while (<$in>) {
+
+ # ignore blank lines and comments
+ next if (/^\s*$/ || /\s*\#/);
+
+ if (/^\s*(TEST_START|DEFAULTS)\b(.*)/) {
+
+ my $type = $1;
+ $rest = $2;
+ $line = $2;
+
+ my $old_test_num;
+ my $old_repeat;
+ $override = 0;
+
+ if ($type eq "TEST_START") {
+
+ if ($num_tests_set) {
+ die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
+ }
+
+ $old_test_num = $test_num;
+ $old_repeat = $repeat;
+
+ $test_num += $repeat;
+ $default = 0;
+ $repeat = 1;
+ } else {
+ $default = 1;
+ }
+
+ # If SKIP is anywhere in the line, the command will be skipped
+ if ($rest =~ s/\s+SKIP\b//) {
+ $skip = 1;
+ } else {
+ $test_case = 1;
+ $skip = 0;
+ }
+
+ if ($rest =~ s/\sELSE\b//) {
+ if (!$if) {
+ die "$name: $.: ELSE found with out matching IF section\n$_";
+ }
+ $if = 0;
+
+ if ($if_set) {
+ $skip = 1;
+ } else {
+ $skip = 0;
+ }
+ }
+
+ if ($rest =~ s/\sIF\s+(.*)//) {
+ if (process_if($name, $1)) {
+ $if_set = 1;
+ } else {
+ $skip = 1;
+ }
+ $if = 1;
+ } else {
+ $if = 0;
+ $if_set = 0;
+ }
+
+ if (!$skip) {
+ if ($type eq "TEST_START") {
+ if ($rest =~ s/\s+ITERATE\s+(\d+)//) {
+ $repeat = $1;
+ $repeat_tests{"$test_num"} = $repeat;
+ }
+ } elsif ($rest =~ s/\sOVERRIDE\b//) {
+ # DEFAULT only
+ $override = 1;
+ # Clear previous overrides
+ %overrides = ();
+ }
+ }
+
+ if (!$skip && $rest !~ /^\s*$/) {
+ die "$name: $.: Gargbage found after $type\n$_";
+ }
+
+ if ($skip && $type eq "TEST_START") {
+ $test_num = $old_test_num;
+ $repeat = $old_repeat;
+ }
+
+ } elsif (/^\s*ELSE\b(.*)$/) {
+ if (!$if) {
+ die "$name: $.: ELSE found with out matching IF section\n$_";
+ }
+ $rest = $1;
+ if ($if_set) {
+ $skip = 1;
+ $rest = "";
+ } else {
+ $skip = 0;
+
+ if ($rest =~ /\sIF\s+(.*)/) {
+ # May be a ELSE IF section.
+ if (process_if($name, $1)) {
+ $if_set = 1;
+ } else {
+ $skip = 1;
+ }
+ $rest = "";
+ } else {
+ $if = 0;
+ }
+ }
+
+ if ($rest !~ /^\s*$/) {
+ die "$name: $.: Gargbage found after DEFAULTS\n$_";
+ }
+
+ } elsif (/^\s*INCLUDE\s+(\S+)/) {
+
+ next if ($skip);
+
+ if (!$default) {
+ die "$name: $.: INCLUDE can only be done in default sections\n$_";
+ }
+
+ my $file = process_variables($1);
+
+ if ($file !~ m,^/,) {
+ # check the path of the config file first
+ if ($config =~ m,(.*)/,) {
+ if (-f "$1/$file") {
+ $file = "$1/$file";
+ }
+ }
+ }
+
+ if ( ! -r $file ) {
+ die "$name: $.: Can't read file $file\n$_";
+ }
+
+ if (__read_config($file, \$test_num)) {
+ $test_case = 1;
+ }
+
+ } elsif (/^\s*([A-Z_\[\]\d]+)\s*=~\s*(.*?)\s*$/) {
+
+ next if ($skip);
+
+ my $lvalue = $1;
+ my $rvalue = $2;
+
+ if ($default || $lvalue =~ /\[\d+\]$/) {
+ set_eval($lvalue, $rvalue, $name);
+ } else {
+ my $val = "$lvalue\[$test_num\]";
+ set_eval($val, $rvalue, $name);
+ }
+
+ } elsif (/^\s*([A-Z_\[\]\d]+)\s*=\s*(.*?)\s*$/) {
+
+ next if ($skip);
+
+ my $lvalue = $1;
+ my $rvalue = $2;
+
+ if (!$default &&
+ ($lvalue eq "NUM_TESTS" ||
+ $lvalue eq "LOG_FILE" ||
+ $lvalue eq "CLEAR_LOG")) {
+ die "$name: $.: $lvalue must be set in DEFAULTS section\n";
+ }
+
+ if ($lvalue eq "NUM_TESTS") {
+ if ($test_num) {
+ die "$name: $.: Can not specify both NUM_TESTS and TEST_START\n";
+ }
+ if (!$default) {
+ die "$name: $.: NUM_TESTS must be set in default section\n";
+ }
+ $num_tests_set = 1;
+ }
+
+ if ($default || $lvalue =~ /\[\d+\]$/) {
+ set_value($lvalue, $rvalue, $override, \%overrides, $name);
+ } else {
+ my $val = "$lvalue\[$test_num\]";
+ set_value($val, $rvalue, $override, \%overrides, $name);
+
+ if ($repeat > 1) {
+ $repeats{$val} = $repeat;
+ }
+ }
+ } elsif (/^\s*([A-Z_\[\]\d]+)\s*:=\s*(.*?)\s*$/) {
+ next if ($skip);
+
+ my $lvalue = $1;
+ my $rvalue = $2;
+
+ # process config variables.
+ # Config variables are only active while reading the
+ # config and can be defined anywhere. They also ignore
+ # TEST_START and DEFAULTS, but are skipped if they are in
+ # on of these sections that have SKIP defined.
+ # The save variable can be
+ # defined multiple times and the new one simply overrides
+ # the prevous one.
+ set_variable($lvalue, $rvalue);
+
+ } else {
+ die "$name: $.: Garbage found in config\n$_";
+ }
+ }
+
+ if ($test_num) {
+ $test_num += $repeat - 1;
+ $opt{"NUM_TESTS"} = $test_num;
+ }
+
+ close($in);
+
+ $$current_test_num = $test_num;
+
+ return $test_case;
+}
+
+sub get_test_case {
+ print "What test case would you like to run?\n";
+ print " (build, install or boot)\n";
+ print " Other tests are available but require editing ktest.conf\n";
+ print " (see tools/testing/ktest/sample.conf)\n";
+ my $ans = <STDIN>;
+ chomp $ans;
+ $default{"TEST_TYPE"} = $ans;
+}
+
+sub read_config {
+ my ($config) = @_;
+
+ my $test_case;
+ my $test_num = 0;
+
+ $test_case = __read_config $config, \$test_num;
+
+ # make sure we have all mandatory configs
+ get_mandatory_configs;
+
+ # was a test specified?
+ if (!$test_case) {
+ print "No test case specified.\n";
+ get_test_case;
+ }
+
+ # set any defaults
+
+ foreach my $default (keys %default) {
+ if (!defined($opt{$default})) {
+ $opt{$default} = $default{$default};
+ }
+ }
+
+ if ($opt{"IGNORE_UNUSED"} == 1) {
+ return;
+ }
+
+ my %not_used;
+
+ # check if there are any stragglers (typos?)
+ foreach my $option (keys %opt) {
+ my $op = $option;
+ # remove per test labels.
+ $op =~ s/\[.*\]//;
+ if (!exists($option_map{$op}) &&
+ !exists($default{$op}) &&
+ !exists($used_options{$op})) {
+ $not_used{$op} = 1;
+ }
+ }
+
+ if (%not_used) {
+ my $s = "s are";
+ $s = " is" if (keys %not_used == 1);
+ print "The following option$s not used; could be a typo:\n";
+ foreach my $option (keys %not_used) {
+ print "$option\n";
+ }
+ print "Set IGRNORE_UNUSED = 1 to have ktest ignore unused variables\n";
+ if (!read_yn "Do you want to continue?") {
+ exit -1;
+ }
+ }
+}
+
+sub __eval_option {
+ my ($name, $option, $i) = @_;
+
+ # Add space to evaluate the character before $
+ $option = " $option";
+ my $retval = "";
+ my $repeated = 0;
+ my $parent = 0;
+
+ foreach my $test (keys %repeat_tests) {
+ if ($i >= $test &&
+ $i < $test + $repeat_tests{$test}) {
+
+ $repeated = 1;
+ $parent = $test;
+ last;
+ }
+ }
+
+ while ($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\[$i\]";
+ my $parento = "$var\[$parent\]";
+
+ # If a variable contains itself, use the default var
+ if (($var eq $name) && defined($opt{$var})) {
+ $o = $opt{$var};
+ $retval = "$retval$o";
+ } elsif (defined($opt{$o})) {
+ $o = $opt{$o};
+ $retval = "$retval$o";
+ } elsif ($repeated && defined($opt{$parento})) {
+ $o = $opt{$parento};
+ $retval = "$retval$o";
+ } elsif (defined($opt{$var})) {
+ $o = $opt{$var};
+ $retval = "$retval$o";
+ } elsif ($var eq "KERNEL_VERSION" && defined($make)) {
+ # special option KERNEL_VERSION uses kernel version
+ get_version();
+ $retval = "$retval$version";
+ } else {
+ $retval = "$retval\$\{$var\}";
+ }
+
+ $option = $end;
+ }
+
+ $retval = "$retval$option";
+
+ $retval =~ s/^ //;
+
+ return $retval;
+}
+
+sub process_evals {
+ my ($name, $option, $i) = @_;
+
+ my $option_name = "$name\[$i\]";
+ my $ev;
+
+ my $old_option = $option;
+
+ if (defined($evals{$option_name})) {
+ $ev = $evals{$option_name};
+ } elsif (defined($evals{$name})) {
+ $ev = $evals{$name};
+ } else {
+ return $option;
+ }
+
+ for my $e (@{$ev}) {
+ eval "\$option =~ $e";
+ }
+
+ if ($option ne $old_option) {
+ doprint("$name changed from '$old_option' to '$option'\n");
+ }
+
+ return $option;
+}
+
+sub eval_option {
+ my ($name, $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;
+ $option = __eval_option($name, $option, $i);
+ }
+
+ $option = process_evals($name, $option, $i);
+
+ return $option;
+}
+
+sub run_command;
+sub start_monitor;
+sub end_monitor;
+sub wait_for_monitor;
+
+sub reboot {
+ my ($time) = @_;
+ my $powercycle = 0;
+
+ # test if the machine can be connected to within a few seconds
+ my $stat = run_ssh("echo check machine status", $connect_timeout);
+ if (!$stat) {
+ doprint("power cycle\n");
+ $powercycle = 1;
+ }
+
+ if ($powercycle) {
+ run_command "$power_cycle";
+
+ start_monitor;
+ # flush out current monitor
+ # May contain the reboot success line
+ wait_for_monitor 1;
+
+ } else {
+ # Make sure everything has been written to disk
+ run_ssh("sync");
+
+ if (defined($time)) {
+ start_monitor;
+ # flush out current monitor
+ # May contain the reboot success line
+ wait_for_monitor 1;
+ }
+
+ # try to reboot normally
+ if (run_command $reboot) {
+ if (defined($powercycle_after_reboot)) {
+ sleep $powercycle_after_reboot;
+ run_command "$power_cycle";
+ }
+ } else {
+ # nope? power cycle it.
+ run_command "$power_cycle";
+ }
+ }
+
+ if (defined($time)) {
+
+ # We only want to get to the new kernel, don't fail
+ # if we stumble over a call trace.
+ my $save_ignore_errors = $ignore_errors;
+ $ignore_errors = 1;
+
+ # Look for the good kernel to boot
+ if (wait_for_monitor($time, "Linux version")) {
+ # reboot got stuck?
+ doprint "Reboot did not finish. Forcing power cycle\n";
+ run_command "$power_cycle";
+ }
+
+ $ignore_errors = $save_ignore_errors;
+
+ # Still need to wait for the reboot to finish
+ wait_for_monitor($time, $reboot_success_line);
+
+ end_monitor;
+ }
+}
+
+sub reboot_to_good {
+ my ($time) = @_;
+
+ if (defined($switch_to_good)) {
+ run_command $switch_to_good;
+ }
+
+ reboot $time;
+}
+
+sub do_not_reboot {
+ my $i = $iteration;
+
+ return $test_type eq "build" || $no_reboot ||
+ ($test_type eq "patchcheck" && $opt{"PATCHCHECK_TYPE[$i]"} eq "build") ||
+ ($test_type eq "bisect" && $opt{"BISECT_TYPE[$i]"} eq "build") ||
+ ($test_type eq "config_bisect" && $opt{"CONFIG_BISECT_TYPE[$i]"} eq "build");
+}
+
+my $in_die = 0;
+
+sub dodie {
+
+ # avoid recusion
+ return if ($in_die);
+ $in_die = 1;
+
+ doprint "CRITICAL FAILURE... ", @_, "\n";
+
+ my $i = $iteration;
+
+ if ($reboot_on_error && !do_not_reboot) {
+
+ doprint "REBOOTING\n";
+ reboot_to_good;
+
+ } elsif ($poweroff_on_error && defined($power_off)) {
+ doprint "POWERING OFF\n";
+ `$power_off`;
+ }
+
+ if (defined($opt{"LOG_FILE"})) {
+ print " See $opt{LOG_FILE} for more info.\n";
+ }
+
+ if ($email_on_error) {
+ send_email("KTEST: critical failure for your [$test_type] test",
+ "Your test started at $script_start_time has failed with:\n@_\n");
+ }
+
+ if ($monitor_cnt) {
+ # restore terminal settings
+ system("stty $stty_orig");
+ }
+
+ if (defined($post_test)) {
+ run_command $post_test;
+ }
+
+ die @_, "\n";
+}
+
+sub create_pty {
+ my ($ptm, $pts) = @_;
+ my $tmp;
+ my $TIOCSPTLCK = 0x40045431;
+ my $TIOCGPTN = 0x80045430;
+
+ sysopen($ptm, "/dev/ptmx", O_RDWR | O_NONBLOCK) or
+ dodie "Cant open /dev/ptmx";
+
+ # unlockpt()
+ $tmp = pack("i", 0);
+ ioctl($ptm, $TIOCSPTLCK, $tmp) or
+ dodie "ioctl TIOCSPTLCK for /dev/ptmx failed";
+
+ # ptsname()
+ ioctl($ptm, $TIOCGPTN, $tmp) or
+ dodie "ioctl TIOCGPTN for /dev/ptmx failed";
+ $tmp = unpack("i", $tmp);
+
+ sysopen($pts, "/dev/pts/$tmp", O_RDWR | O_NONBLOCK) or
+ dodie "Can't open /dev/pts/$tmp";
+}
+
+sub exec_console {
+ my ($ptm, $pts) = @_;
+
+ close($ptm);
+
+ close(\*STDIN);
+ close(\*STDOUT);
+ close(\*STDERR);
+
+ open(\*STDIN, '<&', $pts);
+ open(\*STDOUT, '>&', $pts);
+ open(\*STDERR, '>&', $pts);
+
+ close($pts);
+
+ exec $console or
+ dodie "Can't open console $console";
+}
+
+sub open_console {
+ my ($ptm) = @_;
+ my $pts = \*PTSFD;
+ my $pid;
+
+ # save terminal settings
+ $stty_orig = `stty -g`;
+
+ # place terminal in cbreak mode so that stdin can be read one character at
+ # a time without having to wait for a newline
+ system("stty -icanon -echo -icrnl");
+
+ create_pty($ptm, $pts);
+
+ $pid = fork;
+
+ if (!$pid) {
+ # child
+ exec_console($ptm, $pts)
+ }
+
+ # parent
+ close($pts);
+
+ return $pid;
+
+ open(PTSFD, "Stop perl from warning about single use of PTSFD");
+}
+
+sub close_console {
+ my ($fp, $pid) = @_;
+
+ doprint "kill child process $pid\n";
+ kill $close_console_signal, $pid;
+
+ doprint "wait for child process $pid to exit\n";
+ waitpid($pid, 0);
+
+ print "closing!\n";
+ close($fp);
+
+ # restore terminal settings
+ system("stty $stty_orig");
+}
+
+sub start_monitor {
+ if ($monitor_cnt++) {
+ return;
+ }
+ $monitor_fp = \*MONFD;
+ $monitor_pid = open_console $monitor_fp;
+
+ return;
+
+ open(MONFD, "Stop perl from warning about single use of MONFD");
+}
+
+sub end_monitor {
+ return if (!defined $console);
+ if (--$monitor_cnt) {
+ return;
+ }
+ close_console($monitor_fp, $monitor_pid);
+}
+
+sub wait_for_monitor {
+ my ($time, $stop) = @_;
+ my $full_line = "";
+ my $line;
+ my $booted = 0;
+ my $start_time = time;
+ my $skip_call_trace = 0;
+ my $bug = 0;
+ my $bug_ignored = 0;
+ my $now;
+
+ doprint "** Wait for monitor to settle down **\n";
+
+ # read the monitor and wait for the system to calm down
+ while (!$booted) {
+ $line = wait_for_input($monitor_fp, $time);
+ last if (!defined($line));
+ print "$line";
+ $full_line .= $line;
+
+ if (defined($stop) && $full_line =~ /$stop/) {
+ doprint "wait for monitor detected $stop\n";
+ $booted = 1;
+ }
+
+ if ($full_line =~ /\[ backtrace testing \]/) {
+ $skip_call_trace = 1;
+ }
+
+ if ($full_line =~ /call trace:/i) {
+ if (!$bug && !$skip_call_trace) {
+ if ($ignore_errors) {
+ $bug_ignored = 1;
+ } else {
+ $bug = 1;
+ }
+ }
+ }
+
+ if ($full_line =~ /\[ end of backtrace testing \]/) {
+ $skip_call_trace = 0;
+ }
+
+ if ($full_line =~ /Kernel panic -/) {
+ $bug = 1;
+ }
+
+ if ($line =~ /\n/) {
+ $full_line = "";
+ }
+ $now = time;
+ if ($now - $start_time >= $max_monitor_wait) {
+ doprint "Exiting monitor flush due to hitting MAX_MONITOR_WAIT\n";
+ return 1;
+ }
+ }
+ print "** Monitor flushed **\n";
+
+ # if stop is defined but wasn't hit, return error
+ # used by reboot (which wants to see a reboot)
+ if (defined($stop) && !$booted) {
+ $bug = 1;
+ }
+ return $bug;
+}
+
+sub save_logs {
+ my ($result, $basedir) = @_;
+ my @t = localtime;
+ my $date = sprintf "%04d%02d%02d%02d%02d%02d",
+ 1900+$t[5],$t[4],$t[3],$t[2],$t[1],$t[0];
+
+ my $type = $build_type;
+ if ($type =~ /useconfig/) {
+ $type = "useconfig";
+ }
+
+ my $dir = "$machine-$test_type-$type-$result-$date";
+
+ $dir = "$basedir/$dir";
+
+ if (!-d $dir) {
+ mkpath($dir) or
+ dodie "can't create $dir";
+ }
+
+ my %files = (
+ "config" => $output_config,
+ "buildlog" => $buildlog,
+ "dmesg" => $dmesg,
+ "testlog" => $testlog,
+ );
+
+ while (my ($name, $source) = each(%files)) {
+ if (-f "$source") {
+ cp "$source", "$dir/$name" or
+ dodie "failed to copy $source";
+ }
+ }
+
+ doprint "*** Saved info to $dir ***\n";
+}
+
+sub fail {
+
+ if ($die_on_failure) {
+ dodie @_;
+ }
+
+ doprint "FAILED\n";
+
+ my $i = $iteration;
+
+ # no need to reboot for just building.
+ if (!do_not_reboot) {
+ doprint "REBOOTING\n";
+ reboot_to_good $sleep_time;
+ }
+
+ my $name = "";
+
+ if (defined($test_name)) {
+ $name = " ($test_name)";
+ }
+
+ print_times;
+
+ doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
+ doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
+ doprint "KTEST RESULT: TEST $i$name Failed: ", @_, "\n";
+ doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
+ doprint "%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%\n";
+
+ if (defined($store_failures)) {
+ save_logs "fail", $store_failures;
+ }
+
+ if (defined($post_test)) {
+ run_command $post_test;
+ }
+
+ return 1;
+}
+
+sub run_command {
+ my ($command, $redirect, $timeout) = @_;
+ my $start_time;
+ my $end_time;
+ my $dolog = 0;
+ my $dord = 0;
+ my $dostdout = 0;
+ my $pid;
+
+ $command =~ s/\$SSH_USER/$ssh_user/g;
+ $command =~ s/\$MACHINE/$machine/g;
+
+ doprint("$command ... ");
+ $start_time = time;
+
+ $pid = open(CMD, "$command 2>&1 |") or
+ (fail "unable to exec $command" and return 0);
+
+ if (defined($opt{"LOG_FILE"})) {
+ open(LOG, ">>$opt{LOG_FILE}") or
+ dodie "failed to write to log";
+ $dolog = 1;
+ }
+
+ if (defined($redirect)) {
+ if ($redirect eq 1) {
+ $dostdout = 1;
+ # Have the output of the command on its own line
+ doprint "\n";
+ } else {
+ open (RD, ">$redirect") or
+ dodie "failed to write to redirect $redirect";
+ $dord = 1;
+ }
+ }
+
+ my $hit_timeout = 0;
+
+ while (1) {
+ my $fp = \*CMD;
+ if (defined($timeout)) {
+ doprint "timeout = $timeout\n";
+ }
+ my $line = wait_for_input($fp, $timeout);
+ if (!defined($line)) {
+ my $now = time;
+ if (defined($timeout) && (($now - $start_time) >= $timeout)) {
+ doprint "Hit timeout of $timeout, killing process\n";
+ $hit_timeout = 1;
+ kill 9, $pid;
+ }
+ last;
+ }
+ print LOG $line if ($dolog);
+ print RD $line if ($dord);
+ print $line if ($dostdout);
+ }
+
+ waitpid($pid, 0);
+ # shift 8 for real exit status
+ $run_command_status = $? >> 8;
+
+ close(CMD);
+ close(LOG) if ($dolog);
+ close(RD) if ($dord);
+
+ $end_time = time;
+ my $delta = $end_time - $start_time;
+
+ if ($delta == 1) {
+ doprint "[1 second] ";
+ } else {
+ doprint "[$delta seconds] ";
+ }
+
+ if ($hit_timeout) {
+ $run_command_status = 1;
+ }
+
+ if ($run_command_status) {
+ doprint "FAILED!\n";
+ } else {
+ doprint "SUCCESS\n";
+ }
+
+ return !$run_command_status;
+}
+
+sub run_ssh {
+ my ($cmd, $timeout) = @_;
+ my $cp_exec = $ssh_exec;
+
+ $cp_exec =~ s/\$SSH_COMMAND/$cmd/g;
+ return run_command "$cp_exec", undef , $timeout;
+}
+
+sub run_scp {
+ my ($src, $dst, $cp_scp) = @_;
+
+ $cp_scp =~ s/\$SRC_FILE/$src/g;
+ $cp_scp =~ s/\$DST_FILE/$dst/g;
+
+ return run_command "$cp_scp";
+}
+
+sub run_scp_install {
+ my ($src, $dst) = @_;
+
+ my $cp_scp = $scp_to_target_install;
+
+ return run_scp($src, $dst, $cp_scp);
+}
+
+sub run_scp_mod {
+ my ($src, $dst) = @_;
+
+ my $cp_scp = $scp_to_target;
+
+ return run_scp($src, $dst, $cp_scp);
+}
+
+sub get_grub2_index {
+
+ return if (defined($grub_number) && defined($last_grub_menu) &&
+ $last_grub_menu eq $grub_menu && defined($last_machine) &&
+ $last_machine eq $machine);
+
+ doprint "Find grub2 menu ... ";
+ $grub_number = -1;
+
+ my $ssh_grub = $ssh_exec;
+ $ssh_grub =~ s,\$SSH_COMMAND,cat $grub_file,g;
+
+ open(IN, "$ssh_grub |")
+ or dodie "unable to get $grub_file";
+
+ my $found = 0;
+
+ while (<IN>) {
+ if (/^menuentry.*$grub_menu/) {
+ $grub_number++;
+ $found = 1;
+ last;
+ } elsif (/^menuentry\s|^submenu\s/) {
+ $grub_number++;
+ }
+ }
+ close(IN);
+
+ dodie "Could not find '$grub_menu' in $grub_file on $machine"
+ if (!$found);
+ doprint "$grub_number\n";
+ $last_grub_menu = $grub_menu;
+ $last_machine = $machine;
+}
+
+sub get_grub_index {
+
+ if ($reboot_type eq "grub2") {
+ get_grub2_index;
+ return;
+ }
+
+ if ($reboot_type ne "grub") {
+ return;
+ }
+ return if (defined($grub_number) && defined($last_grub_menu) &&
+ $last_grub_menu eq $grub_menu && defined($last_machine) &&
+ $last_machine eq $machine);
+
+ doprint "Find grub menu ... ";
+ $grub_number = -1;
+
+ my $ssh_grub = $ssh_exec;
+ $ssh_grub =~ s,\$SSH_COMMAND,cat /boot/grub/menu.lst,g;
+
+ open(IN, "$ssh_grub |")
+ or dodie "unable to get menu.lst";
+
+ my $found = 0;
+
+ while (<IN>) {
+ if (/^\s*title\s+$grub_menu\s*$/) {
+ $grub_number++;
+ $found = 1;
+ last;
+ } elsif (/^\s*title\s/) {
+ $grub_number++;
+ }
+ }
+ close(IN);
+
+ dodie "Could not find '$grub_menu' in /boot/grub/menu on $machine"
+ if (!$found);
+ doprint "$grub_number\n";
+ $last_grub_menu = $grub_menu;
+ $last_machine = $machine;
+}
+
+sub wait_for_input
+{
+ my ($fp, $time) = @_;
+ my $start_time;
+ my $rin;
+ my $rout;
+ my $nr;
+ my $buf;
+ my $line;
+ my $ch;
+
+ if (!defined($time)) {
+ $time = $timeout;
+ }
+
+ $rin = '';
+ vec($rin, fileno($fp), 1) = 1;
+ vec($rin, fileno(\*STDIN), 1) = 1;
+
+ $start_time = time;
+
+ while (1) {
+ $nr = select($rout=$rin, undef, undef, $time);
+
+ last if ($nr <= 0);
+
+ # copy data from stdin to the console
+ if (vec($rout, fileno(\*STDIN), 1) == 1) {
+ $nr = sysread(\*STDIN, $buf, 1000);
+ syswrite($fp, $buf, $nr) if ($nr > 0);
+ }
+
+ # The timeout is based on time waiting for the fp data
+ if (vec($rout, fileno($fp), 1) != 1) {
+ last if (defined($time) && (time - $start_time > $time));
+ next;
+ }
+
+ $line = "";
+
+ # try to read one char at a time
+ while (sysread $fp, $ch, 1) {
+ $line .= $ch;
+ last if ($ch eq "\n");
+ }
+
+ last if (!length($line));
+
+ return $line;
+ }
+ return undef;
+}
+
+sub reboot_to {
+ if (defined($switch_to_test)) {
+ run_command $switch_to_test;
+ }
+
+ if ($reboot_type eq "grub") {
+ run_ssh "'(echo \"savedefault --default=$grub_number --once\" | grub --batch)'";
+ } elsif ($reboot_type eq "grub2") {
+ run_ssh "$grub_reboot $grub_number";
+ } elsif ($reboot_type eq "syslinux") {
+ run_ssh "$syslinux --once \\\"$syslinux_label\\\" $syslinux_path";
+ } elsif (defined $reboot_script) {
+ run_command "$reboot_script";
+ }
+ reboot;
+}
+
+sub get_sha1 {
+ my ($commit) = @_;
+
+ doprint "git rev-list --max-count=1 $commit ... ";
+ my $sha1 = `git rev-list --max-count=1 $commit`;
+ my $ret = $?;
+
+ logit $sha1;
+
+ if ($ret) {
+ doprint "FAILED\n";
+ dodie "Failed to get git $commit";
+ }
+
+ print "SUCCESS\n";
+
+ chomp $sha1;
+
+ return $sha1;
+}
+
+sub monitor {
+ my $booted = 0;
+ my $bug = 0;
+ my $bug_ignored = 0;
+ my $skip_call_trace = 0;
+ my $loops;
+
+ my $start_time = time;
+
+ wait_for_monitor 5;
+
+ my $line;
+ my $full_line = "";
+
+ open(DMESG, "> $dmesg") or
+ dodie "unable to write to $dmesg";
+
+ reboot_to;
+
+ my $success_start;
+ my $failure_start;
+ my $monitor_start = time;
+ my $done = 0;
+ my $version_found = 0;
+
+ while (!$done) {
+
+ 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;
+ }
+ }
+
+ doprint $line;
+ print DMESG $line;
+
+ # we are not guaranteed to get a full line
+ $full_line .= $line;
+
+ if ($full_line =~ /$success_line/) {
+ $booted = 1;
+ $success_start = time;
+ }
+
+ if ($booted && defined($stop_after_success) &&
+ $stop_after_success >= 0) {
+ my $now = time;
+ if ($now - $success_start >= $stop_after_success) {
+ doprint "Test forced to stop after $stop_after_success seconds after success\n";
+ last;
+ }
+ }
+
+ if ($full_line =~ /\[ backtrace testing \]/) {
+ $skip_call_trace = 1;
+ }
+
+ if ($full_line =~ /call trace:/i) {
+ if (!$bug && !$skip_call_trace) {
+ if ($ignore_errors) {
+ $bug_ignored = 1;
+ } else {
+ $bug = 1;
+ $failure_start = time;
+ }
+ }
+ }
+
+ if ($bug && defined($stop_after_failure) &&
+ $stop_after_failure >= 0) {
+ my $now = time;
+ if ($now - $failure_start >= $stop_after_failure) {
+ doprint "Test forced to stop after $stop_after_failure seconds after failure\n";
+ last;
+ }
+ }
+
+ if ($full_line =~ /\[ end of backtrace testing \]/) {
+ $skip_call_trace = 0;
+ }
+
+ if ($full_line =~ /Kernel panic -/) {
+ $failure_start = time;
+ $bug = 1;
+ }
+
+ # Detect triple faults by testing the banner
+ if ($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 "Already 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/) {
+ $full_line = "";
+ }
+
+ if ($stop_test_after > 0 && !$booted && !$bug) {
+ if (time - $monitor_start > $stop_test_after) {
+ doprint "STOP_TEST_AFTER ($stop_test_after seconds) timed out\n";
+ $done = 1;
+ }
+ }
+ }
+
+ my $end_time = time;
+ $reboot_time = $end_time - $start_time;
+
+ close(DMESG);
+
+ if ($bug) {
+ return 0 if ($in_bisect);
+ fail "failed - got a bug report" and return 0;
+ }
+
+ if (!$booted) {
+ return 0 if ($in_bisect);
+ fail "failed - never got a boot prompt." and return 0;
+ }
+
+ if ($bug_ignored) {
+ doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
+ }
+
+ return 1;
+}
+
+sub eval_kernel_version {
+ my ($option) = @_;
+
+ $option =~ s/\$KERNEL_VERSION/$version/g;
+
+ return $option;
+}
+
+sub do_post_install {
+
+ return if (!defined($post_install));
+
+ my $cp_post_install = eval_kernel_version $post_install;
+ run_command "$cp_post_install" or
+ dodie "Failed to run post install";
+}
+
+# Sometimes the reboot fails, and will hang. We try to ssh to the box
+# and if we fail, we force another reboot, that should powercycle it.
+sub test_booted {
+ if (!run_ssh "echo testing connection") {
+ reboot $sleep_time;
+ }
+}
+
+sub install {
+
+ return if ($no_install);
+
+ my $start_time = time;
+
+ if (defined($pre_install)) {
+ my $cp_pre_install = eval_kernel_version $pre_install;
+ run_command "$cp_pre_install" or
+ dodie "Failed to run pre install";
+ }
+
+ my $cp_target = eval_kernel_version $target_image;
+
+ test_booted;
+
+ run_scp_install "$outputdir/$build_target", "$cp_target" or
+ dodie "failed to copy image";
+
+ my $install_mods = 0;
+
+ # should we process modules?
+ $install_mods = 0;
+ open(IN, "$output_config") or dodie("Can't read config file");
+ while (<IN>) {
+ if (/CONFIG_MODULES(=y)?/) {
+ if (defined($1)) {
+ $install_mods = 1;
+ last;
+ }
+ }
+ }
+ close(IN);
+
+ if (!$install_mods) {
+ do_post_install;
+ doprint "No modules needed\n";
+ my $end_time = time;
+ $install_time = $end_time - $start_time;
+ return;
+ }
+
+ run_command "$make INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=$tmpdir modules_install" or
+ dodie "Failed to install modules";
+
+ my $modlib = "/lib/modules/$version";
+ my $modtar = "ktest-mods.tar.bz2";
+
+ run_ssh "rm -rf $modlib" or
+ dodie "failed to remove old mods: $modlib";
+
+ # would be nice if scp -r did not follow symbolic links
+ run_command "cd $tmpdir && tar -cjf $modtar lib/modules/$version" or
+ dodie "making tarball";
+
+ run_scp_mod "$tmpdir/$modtar", "/tmp" or
+ dodie "failed to copy modules";
+
+ unlink "$tmpdir/$modtar";
+
+ run_ssh "'(cd / && tar xjf /tmp/$modtar)'" or
+ dodie "failed to tar modules";
+
+ run_ssh "rm -f /tmp/$modtar";
+
+ do_post_install;
+
+ my $end_time = time;
+ $install_time = $end_time - $start_time;
+}
+
+sub get_version {
+ # get the release name
+ return if ($have_version);
+ doprint "$make kernelrelease ... ";
+ $version = `$make -s kernelrelease | tail -1`;
+ chomp($version);
+ doprint "$version\n";
+ $have_version = 1;
+}
+
+sub start_monitor_and_install {
+ # Make sure the stable kernel has finished booting
+
+ # Install bisects, don't need console
+ if (defined $console) {
+ start_monitor;
+ wait_for_monitor 5;
+ end_monitor;
+ }
+
+ get_grub_index;
+ get_version;
+ install;
+
+ start_monitor if (defined $console);
+ return monitor;
+}
+
+my $check_build_re = ".*:.*(warning|error|Error):.*";
+my $utf8_quote = "\\x{e2}\\x{80}(\\x{98}|\\x{99})";
+
+sub process_warning_line {
+ my ($line) = @_;
+
+ chomp $line;
+
+ # for distcc heterogeneous systems, some compilers
+ # do things differently causing warning lines
+ # to be slightly different. This makes an attempt
+ # to fixe those issues.
+
+ # chop off the index into the line
+ # using distcc, some compilers give different indexes
+ # depending on white space
+ $line =~ s/^(\s*\S+:\d+:)\d+/$1/;
+
+ # Some compilers use UTF-8 extended for quotes and some don't.
+ $line =~ s/$utf8_quote/'/g;
+
+ return $line;
+}
+
+# Read buildlog and check against warnings file for any
+# new warnings.
+#
+# Returns 1 if OK
+# 0 otherwise
+sub check_buildlog {
+ return 1 if (!defined $warnings_file);
+
+ my %warnings_list;
+
+ # Failed builds should not reboot the target
+ my $save_no_reboot = $no_reboot;
+ $no_reboot = 1;
+
+ if (-f $warnings_file) {
+ open(IN, $warnings_file) or
+ dodie "Error opening $warnings_file";
+
+ while (<IN>) {
+ if (/$check_build_re/) {
+ my $warning = process_warning_line $_;
+
+ $warnings_list{$warning} = 1;
+ }
+ }
+ close(IN);
+ }
+
+ # If warnings file didn't exist, and WARNINGS_FILE exist,
+ # then we fail on any warning!
+
+ open(IN, $buildlog) or dodie "Can't open $buildlog";
+ while (<IN>) {
+ if (/$check_build_re/) {
+ my $warning = process_warning_line $_;
+
+ if (!defined $warnings_list{$warning}) {
+ fail "New warning found (not in $warnings_file)\n$_\n";
+ $no_reboot = $save_no_reboot;
+ return 0;
+ }
+ }
+ }
+ $no_reboot = $save_no_reboot;
+ close(IN);
+}
+
+sub check_patch_buildlog {
+ my ($patch) = @_;
+
+ my @files = `git show $patch | diffstat -l`;
+
+ foreach my $file (@files) {
+ chomp $file;
+ }
+
+ open(IN, "git show $patch |") or
+ dodie "failed to show $patch";
+ while (<IN>) {
+ if (m,^--- a/(.*),) {
+ chomp $1;
+ $files[$#files] = $1;
+ }
+ }
+ close(IN);
+
+ open(IN, $buildlog) or dodie "Can't open $buildlog";
+ while (<IN>) {
+ if (/^\s*(.*?):.*(warning|error)/) {
+ my $err = $1;
+ foreach my $file (@files) {
+ my $fullpath = "$builddir/$file";
+ if ($file eq $err || $fullpath eq $err) {
+ fail "$file built with warnings" and return 0;
+ }
+ }
+ }
+ }
+ close(IN);
+
+ 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 $output_config";
+}
+
+sub make_oldconfig {
+
+ my @force_list = keys %force_config;
+
+ if ($#force_list >= 0) {
+ apply_min_config;
+ }
+
+ if (!run_command "$make olddefconfig") {
+ # Perhaps olddefconfig doesn't exist in this version of the kernel
+ # try oldnoconfig
+ doprint "olddefconfig failed, trying make oldnoconfig\n";
+ if (!run_command "$make oldnoconfig") {
+ doprint "oldnoconfig failed, trying yes '' | make oldconfig\n";
+ # try a yes '' | oldconfig
+ 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) = @_;
+
+ doprint "Loading force configs from $config\n";
+ 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) = @_;
+
+ unlink $buildlog;
+
+ my $start_time = time;
+
+ # Failed builds should not reboot the target
+ my $save_no_reboot = $no_reboot;
+ $no_reboot = 1;
+
+ # Calculate a new version from here.
+ $have_version = 0;
+
+ if (defined($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";
+
+ $type = "oldconfig";
+ }
+
+ # old config can ask questions
+ if ($type eq "oldconfig") {
+ $type = "olddefconfig";
+
+ # allow for empty configs
+ run_command "touch $output_config";
+
+ if (!$noclean) {
+ run_command "mv $output_config $outputdir/config_temp" or
+ dodie "moving .config";
+
+ run_command "$make mrproper" or dodie "make mrproper";
+
+ run_command "mv $outputdir/config_temp $output_config" or
+ dodie "moving config_temp";
+ }
+
+ } elsif (!$noclean) {
+ unlink "$output_config";
+ run_command "$make mrproper" or
+ dodie "make mrproper";
+ }
+
+ # add something to distinguish this build
+ open(OUT, "> $outputdir/localversion") or dodie("Can't make localversion file");
+ print OUT "$localversion\n";
+ close(OUT);
+
+ if (defined($minconfig)) {
+ load_force_config($minconfig);
+ }
+
+ if ($type ne "olddefconfig") {
+ run_command "$make $type" or
+ dodie "failed make config";
+ }
+ # Run old config regardless, to enforce min configurations
+ make_oldconfig;
+
+ my $build_ret = run_command "$make $build_options", $buildlog;
+
+ if (defined($post_build)) {
+ # Because a post build may change the kernel version
+ # do it now.
+ get_version;
+ 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
+ if ($in_bisect) {
+ $no_reboot = $save_no_reboot;
+ return 0;
+ }
+ fail "failed build" and return 0;
+ }
+
+ $no_reboot = $save_no_reboot;
+
+ my $end_time = time;
+ $build_time = $end_time - $start_time;
+
+ return 1;
+}
+
+sub halt {
+ if (!run_ssh "halt" or defined($power_off)) {
+ if (defined($poweroff_after_halt)) {
+ sleep $poweroff_after_halt;
+ run_command "$power_off";
+ }
+ } else {
+ # nope? the zap it!
+ run_command "$power_off";
+ }
+}
+
+sub success {
+ my ($i) = @_;
+
+ $successes++;
+
+ my $name = "";
+
+ if (defined($test_name)) {
+ $name = " ($test_name)";
+ }
+
+ print_times;
+
+ doprint "\n\n*******************************************\n";
+ doprint "*******************************************\n";
+ doprint "KTEST RESULT: TEST $i$name SUCCESS!!!! **\n";
+ doprint "*******************************************\n";
+ doprint "*******************************************\n";
+
+ if (defined($store_successes)) {
+ save_logs "success", $store_successes;
+ }
+
+ if ($i != $opt{"NUM_TESTS"} && !do_not_reboot) {
+ doprint "Reboot and wait $sleep_time seconds\n";
+ reboot_to_good $sleep_time;
+ }
+
+ if (defined($post_test)) {
+ run_command $post_test;
+ }
+}
+
+sub answer_bisect {
+ for (;;) {
+ doprint "Pass, fail, or skip? [p/f/s]";
+ my $ans = <STDIN>;
+ chomp $ans;
+ if ($ans eq "p" || $ans eq "P") {
+ return 1;
+ } elsif ($ans eq "f" || $ans eq "F") {
+ return 0;
+ } elsif ($ans eq "s" || $ans eq "S") {
+ return -1;
+ } else {
+ print "Please answer 'p', 'f', or 's'\n";
+ }
+ }
+}
+
+sub child_run_test {
+
+ # child should have no power
+ $reboot_on_error = 0;
+ $poweroff_on_error = 0;
+ $die_on_failure = 1;
+
+ run_command $run_test, $testlog;
+
+ exit $run_command_status;
+}
+
+my $child_done;
+
+sub child_finished {
+ $child_done = 1;
+}
+
+sub do_run_test {
+ my $child_pid;
+ my $child_exit;
+ my $line;
+ my $full_line;
+ my $bug = 0;
+ my $bug_ignored = 0;
+
+ my $start_time = time;
+
+ wait_for_monitor 1;
+
+ doprint "run test $run_test\n";
+
+ $child_done = 0;
+
+ $SIG{CHLD} = qw(child_finished);
+
+ $child_pid = fork;
+
+ child_run_test if (!$child_pid);
+
+ $full_line = "";
+
+ do {
+ $line = wait_for_input($monitor_fp, 1);
+ if (defined($line)) {
+
+ # we are not guaranteed to get a full line
+ $full_line .= $line;
+ doprint $line;
+
+ if ($full_line =~ /call trace:/i) {
+ if ($ignore_errors) {
+ $bug_ignored = 1;
+ } else {
+ $bug = 1;
+ }
+ }
+
+ if ($full_line =~ /Kernel panic -/) {
+ $bug = 1;
+ }
+
+ if ($line =~ /\n/) {
+ $full_line = "";
+ }
+ }
+ } while (!$child_done && !$bug);
+
+ if (!$bug && $bug_ignored) {
+ doprint "WARNING: Call Trace detected but ignored due to IGNORE_ERRORS=1\n";
+ }
+
+ if ($bug) {
+ my $failure_start = time;
+ my $now;
+ do {
+ $line = wait_for_input($monitor_fp, 1);
+ if (defined($line)) {
+ doprint $line;
+ }
+ $now = time;
+ if ($now - $failure_start >= $stop_after_failure) {
+ last;
+ }
+ } while (defined($line));
+
+ doprint "Detected kernel crash!\n";
+ # kill the child with extreme prejudice
+ kill 9, $child_pid;
+ }
+
+ waitpid $child_pid, 0;
+ $child_exit = $? >> 8;
+
+ my $end_time = time;
+ $test_time = $end_time - $start_time;
+
+ if (!$bug && $in_bisect) {
+ if (defined($bisect_ret_good)) {
+ if ($child_exit == $bisect_ret_good) {
+ return 1;
+ }
+ }
+ if (defined($bisect_ret_skip)) {
+ if ($child_exit == $bisect_ret_skip) {
+ return -1;
+ }
+ }
+ if (defined($bisect_ret_abort)) {
+ if ($child_exit == $bisect_ret_abort) {
+ fail "test abort" and return -2;
+ }
+ }
+ if (defined($bisect_ret_bad)) {
+ if ($child_exit == $bisect_ret_skip) {
+ return 0;
+ }
+ }
+ if (defined($bisect_ret_default)) {
+ if ($bisect_ret_default eq "good") {
+ return 1;
+ } elsif ($bisect_ret_default eq "bad") {
+ return 0;
+ } elsif ($bisect_ret_default eq "skip") {
+ return -1;
+ } elsif ($bisect_ret_default eq "abort") {
+ return -2;
+ } else {
+ fail "unknown default action: $bisect_ret_default"
+ and return -2;
+ }
+ }
+ }
+
+ if ($bug || $child_exit) {
+ return 0 if $in_bisect;
+ fail "test failed" and return 0;
+ }
+ return 1;
+}
+
+sub run_git_bisect {
+ my ($command) = @_;
+
+ doprint "$command ... ";
+
+ my $output = `$command 2>&1`;
+ my $ret = $?;
+
+ logit $output;
+
+ if ($ret) {
+ doprint "FAILED\n";
+ dodie "Failed to git bisect";
+ }
+
+ doprint "SUCCESS\n";
+ if ($output =~ m/^(Bisecting: .*\(roughly \d+ steps?\))\s+\[([[:xdigit:]]+)\]/) {
+ doprint "$1 [$2]\n";
+ } elsif ($output =~ m/^([[:xdigit:]]+) is the first bad commit/) {
+ $bisect_bad_commit = $1;
+ doprint "Found bad commit... $1\n";
+ return 0;
+ } else {
+ # we already logged it, just print it now.
+ print $output;
+ }
+
+ return 1;
+}
+
+sub bisect_reboot {
+ doprint "Reboot and sleep $bisect_sleep_time seconds\n";
+ reboot_to_good $bisect_sleep_time;
+}
+
+# returns 1 on success, 0 on failure, -1 on skip
+sub run_bisect_test {
+ my ($type, $buildtype) = @_;
+
+ my $failed = 0;
+ my $result;
+ my $output;
+ my $ret;
+
+ $in_bisect = 1;
+
+ build $buildtype or $failed = 1;
+
+ if ($type ne "build") {
+ if ($failed && $bisect_skip) {
+ $in_bisect = 0;
+ return -1;
+ }
+ dodie "Failed on build" if $failed;
+
+ # Now boot the box
+ start_monitor_and_install or $failed = 1;
+
+ if ($type ne "boot") {
+ if ($failed && $bisect_skip) {
+ end_monitor;
+ bisect_reboot;
+ $in_bisect = 0;
+ return -1;
+ }
+ dodie "Failed on boot" if $failed;
+
+ do_run_test or $failed = 1;
+ }
+ end_monitor;
+ }
+
+ if ($failed) {
+ $result = 0;
+ } else {
+ $result = 1;
+ }
+
+ # reboot the box to a kernel we can ssh to
+ if ($type ne "build") {
+ bisect_reboot;
+ }
+ $in_bisect = 0;
+
+ return $result;
+}
+
+sub run_bisect {
+ my ($type) = @_;
+ my $buildtype = "oldconfig";
+
+ # We should have a minconfig to use?
+ if (defined($minconfig)) {
+ $buildtype = "useconfig:$minconfig";
+ }
+
+ # If the user sets bisect_tries to less than 1, then no tries
+ # is a success.
+ my $ret = 1;
+
+ # Still let the user manually decide that though.
+ if ($bisect_tries < 1 && $bisect_manual) {
+ $ret = answer_bisect;
+ }
+
+ for (my $i = 0; $i < $bisect_tries; $i++) {
+ if ($bisect_tries > 1) {
+ my $t = $i + 1;
+ doprint("Running bisect trial $t of $bisect_tries:\n");
+ }
+ $ret = run_bisect_test $type, $buildtype;
+
+ if ($bisect_manual) {
+ $ret = answer_bisect;
+ }
+
+ last if (!$ret);
+ }
+
+ # Are we looking for where it worked, not failed?
+ if ($reverse_bisect && $ret >= 0) {
+ $ret = !$ret;
+ }
+
+ if ($ret > 0) {
+ return "good";
+ } elsif ($ret == 0) {
+ return "bad";
+ } elsif ($bisect_skip) {
+ doprint "HIT A BAD COMMIT ... SKIPPING\n";
+ return "skip";
+ }
+}
+
+sub update_bisect_replay {
+ my $tmp_log = "$tmpdir/ktest_bisect_log";
+ run_command "git bisect log > $tmp_log" or
+ dodie "can't create bisect log";
+ return $tmp_log;
+}
+
+sub bisect {
+ my ($i) = @_;
+
+ my $result;
+
+ dodie "BISECT_GOOD[$i] not defined\n" if (!defined($bisect_good));
+ dodie "BISECT_BAD[$i] not defined\n" if (!defined($bisect_bad));
+ dodie "BISECT_TYPE[$i] not defined\n" if (!defined($bisect_type));
+
+ my $good = $bisect_good;
+ my $bad = $bisect_bad;
+ my $type = $bisect_type;
+ my $start = $bisect_start;
+ my $replay = $bisect_replay;
+ my $start_files = $bisect_files;
+
+ if (defined($start_files)) {
+ $start_files = " -- " . $start_files;
+ } else {
+ $start_files = "";
+ }
+
+ # convert to true sha1's
+ $good = get_sha1($good);
+ $bad = get_sha1($bad);
+
+ if (defined($bisect_reverse) && $bisect_reverse == 1) {
+ doprint "Performing a reverse bisect (bad is good, good is bad!)\n";
+ $reverse_bisect = 1;
+ } else {
+ $reverse_bisect = 0;
+ }
+
+ # Can't have a test without having a test to run
+ if ($type eq "test" && !defined($run_test)) {
+ $type = "boot";
+ }
+
+ # Check if a bisect was running
+ my $bisect_start_file = "$builddir/.git/BISECT_START";
+
+ my $check = $bisect_check;
+ my $do_check = defined($check) && $check ne "0";
+
+ if ( -f $bisect_start_file ) {
+ print "Bisect in progress found\n";
+ if ($do_check) {
+ print " If you say yes, then no checks of good or bad will be done\n";
+ }
+ if (defined($replay)) {
+ print "** BISECT_REPLAY is defined in config file **";
+ print " Ignore config option and perform new git bisect log?\n";
+ if (read_ync " (yes, no, or cancel) ") {
+ $replay = update_bisect_replay;
+ $do_check = 0;
+ }
+ } elsif (read_yn "read git log and continue?") {
+ $replay = update_bisect_replay;
+ $do_check = 0;
+ }
+ }
+
+ if ($do_check) {
+
+ # get current HEAD
+ my $head = get_sha1("HEAD");
+
+ if ($check ne "good") {
+ doprint "TESTING BISECT BAD [$bad]\n";
+ run_command "git checkout $bad" or
+ dodie "Failed to checkout $bad";
+
+ $result = run_bisect $type;
+
+ if ($result ne "bad") {
+ fail "Tested BISECT_BAD [$bad] and it succeeded" and return 0;
+ }
+ }
+
+ if ($check ne "bad") {
+ doprint "TESTING BISECT GOOD [$good]\n";
+ run_command "git checkout $good" or
+ dodie "Failed to checkout $good";
+
+ $result = run_bisect $type;
+
+ if ($result ne "good") {
+ fail "Tested BISECT_GOOD [$good] and it failed" and return 0;
+ }
+ }
+
+ # checkout where we started
+ run_command "git checkout $head" or
+ dodie "Failed to checkout $head";
+ }
+
+ run_command "git bisect start$start_files" or
+ dodie "could not start bisect";
+
+ if (defined($replay)) {
+ run_command "git bisect replay $replay" or
+ dodie "failed to run replay";
+ } else {
+
+ run_command "git bisect good $good" or
+ dodie "could not set bisect good to $good";
+
+ run_git_bisect "git bisect bad $bad" or
+ dodie "could not set bisect bad to $bad";
+
+ }
+
+ if (defined($start)) {
+ run_command "git checkout $start" or
+ dodie "failed to checkout $start";
+ }
+
+ my $test;
+ do {
+ $result = run_bisect $type;
+ $test = run_git_bisect "git bisect $result";
+ print_times;
+ } while ($test);
+
+ run_command "git bisect log" or
+ dodie "could not capture git bisect log";
+
+ run_command "git bisect reset" or
+ dodie "could not reset git bisect";
+
+ doprint "Bad commit was [$bisect_bad_commit]\n";
+
+ success $i;
+}
+
+# config_ignore holds the configs that were set (or unset) for
+# a good config and we will ignore these configs for the rest
+# of a config bisect. These configs stay as they were.
+my %config_ignore;
+
+# config_set holds what all configs were set as.
+my %config_set;
+
+# config_off holds the set of configs that the bad config had disabled.
+# We need to record them and set them in the .config when running
+# olddefconfig, because olddefconfig keeps the defaults.
+my %config_off;
+
+# config_off_tmp holds a set of configs to turn off for now
+my @config_off_tmp;
+
+# config_list is the set of configs that are being tested
+my %config_list;
+my %null_config;
+
+my %dependency;
+
+sub assign_configs {
+ my ($hash, $config) = @_;
+
+ doprint "Reading configs from $config\n";
+
+ open (IN, $config)
+ or dodie "Failed to read $config";
+
+ while (<IN>) {
+ chomp;
+ if (/^((CONFIG\S*)=.*)/) {
+ ${$hash}{$2} = $1;
+ } elsif (/^(# (CONFIG\S*) is not set)/) {
+ ${$hash}{$2} = $1;
+ }
+ }
+
+ close(IN);
+}
+
+sub process_config_ignore {
+ my ($config) = @_;
+
+ assign_configs \%config_ignore, $config;
+}
+
+sub get_dependencies {
+ my ($config) = @_;
+
+ my $arr = $dependency{$config};
+ if (!defined($arr)) {
+ return ();
+ }
+
+ my @deps = @{$arr};
+
+ foreach my $dep (@{$arr}) {
+ print "ADD DEP $dep\n";
+ @deps = (@deps, get_dependencies $dep);
+ }
+
+ return @deps;
+}
+
+sub save_config {
+ my ($pc, $file) = @_;
+
+ my %configs = %{$pc};
+
+ doprint "Saving configs into $file\n";
+
+ open(OUT, ">$file") or dodie "Can not write to $file";
+
+ foreach my $config (keys %configs) {
+ print OUT "$configs{$config}\n";
+ }
+ close(OUT);
+}
+
+sub create_config {
+ my ($name, $pc) = @_;
+
+ doprint "Creating old config from $name configs\n";
+
+ save_config $pc, $output_config;
+
+ make_oldconfig;
+}
+
+sub run_config_bisect_test {
+ my ($type) = @_;
+
+ my $ret = run_bisect_test $type, "oldconfig";
+
+ if ($bisect_manual) {
+ $ret = answer_bisect;
+ }
+
+ return $ret;
+}
+
+sub config_bisect_end {
+ my ($good, $bad) = @_;
+ my $diffexec = "diff -u";
+
+ if (-f "$builddir/scripts/diffconfig") {
+ $diffexec = "$builddir/scripts/diffconfig";
+ }
+ doprint "\n\n***************************************\n";
+ doprint "No more config bisecting possible.\n";
+ run_command "$diffexec $good $bad", 1;
+ doprint "***************************************\n\n";
+}
+
+sub run_config_bisect {
+ my ($good, $bad, $last_result) = @_;
+ my $reset = "";
+ my $cmd;
+ my $ret;
+
+ if (!length($last_result)) {
+ $reset = "-r";
+ }
+ run_command "$config_bisect_exec $reset -b $outputdir $good $bad $last_result", 1;
+
+ # config-bisect returns:
+ # 0 if there is more to bisect
+ # 1 for finding a good config
+ # 2 if it can not find any more configs
+ # -1 (255) on error
+ if ($run_command_status) {
+ return $run_command_status;
+ }
+
+ $ret = run_config_bisect_test $config_bisect_type;
+ if ($ret) {
+ doprint "NEW GOOD CONFIG\n";
+ # Return 3 for good config
+ return 3;
+ } else {
+ doprint "NEW BAD CONFIG\n";
+ # Return 4 for bad config
+ return 4;
+ }
+}
+
+sub config_bisect {
+ my ($i) = @_;
+
+ my $good_config;
+ my $bad_config;
+
+ my $type = $config_bisect_type;
+ my $ret;
+
+ $bad_config = $config_bisect;
+
+ if (defined($config_bisect_good)) {
+ $good_config = $config_bisect_good;
+ } elsif (defined($minconfig)) {
+ $good_config = $minconfig;
+ } else {
+ doprint "No config specified, checking if defconfig works";
+ $ret = run_bisect_test $type, "defconfig";
+ if (!$ret) {
+ fail "Have no good config to compare with, please set CONFIG_BISECT_GOOD";
+ return 1;
+ }
+ $good_config = $output_config;
+ }
+
+ if (!defined($config_bisect_exec)) {
+ # First check the location that ktest.pl ran
+ my @locations = ( "$pwd/config-bisect.pl",
+ "$dirname/config-bisect.pl",
+ "$builddir/tools/testing/ktest/config-bisect.pl",
+ undef );
+ foreach my $loc (@locations) {
+ doprint "loc = $loc\n";
+ $config_bisect_exec = $loc;
+ last if (defined($config_bisect_exec && -x $config_bisect_exec));
+ }
+ if (!defined($config_bisect_exec)) {
+ fail "Could not find an executable config-bisect.pl\n",
+ " Set CONFIG_BISECT_EXEC to point to config-bisect.pl";
+ return 1;
+ }
+ }
+
+ # we don't want min configs to cause issues here.
+ doprint "Disabling 'MIN_CONFIG' for this test\n";
+ undef $minconfig;
+
+ my %good_configs;
+ my %bad_configs;
+ my %tmp_configs;
+
+ if (-f "$tmpdir/good_config.tmp" || -f "$tmpdir/bad_config.tmp") {
+ if (read_yn "Interrupted config-bisect. Continue (n - will start new)?") {
+ if (-f "$tmpdir/good_config.tmp") {
+ $good_config = "$tmpdir/good_config.tmp";
+ } else {
+ $good_config = "$tmpdir/good_config";
+ }
+ if (-f "$tmpdir/bad_config.tmp") {
+ $bad_config = "$tmpdir/bad_config.tmp";
+ } else {
+ $bad_config = "$tmpdir/bad_config";
+ }
+ }
+ }
+ doprint "Run good configs through make oldconfig\n";
+ assign_configs \%tmp_configs, $good_config;
+ create_config "$good_config", \%tmp_configs;
+ $good_config = "$tmpdir/good_config";
+ system("cp $output_config $good_config") == 0 or dodie "cp good config";
+
+ doprint "Run bad configs through make oldconfig\n";
+ assign_configs \%tmp_configs, $bad_config;
+ create_config "$bad_config", \%tmp_configs;
+ $bad_config = "$tmpdir/bad_config";
+ system("cp $output_config $bad_config") == 0 or dodie "cp bad config";
+
+ if (defined($config_bisect_check) && $config_bisect_check ne "0") {
+ if ($config_bisect_check ne "good") {
+ doprint "Testing bad config\n";
+
+ $ret = run_bisect_test $type, "useconfig:$bad_config";
+ if ($ret) {
+ fail "Bad config succeeded when expected to fail!";
+ return 0;
+ }
+ }
+ if ($config_bisect_check ne "bad") {
+ doprint "Testing good config\n";
+
+ $ret = run_bisect_test $type, "useconfig:$good_config";
+ if (!$ret) {
+ fail "Good config failed when expected to succeed!";
+ return 0;
+ }
+ }
+ }
+
+ my $last_run = "";
+
+ do {
+ $ret = run_config_bisect $good_config, $bad_config, $last_run;
+ if ($ret == 3) {
+ $last_run = "good";
+ } elsif ($ret == 4) {
+ $last_run = "bad";
+ }
+ print_times;
+ } while ($ret == 3 || $ret == 4);
+
+ if ($ret == 2) {
+ config_bisect_end "$good_config.tmp", "$bad_config.tmp";
+ }
+
+ return $ret if ($ret < 0);
+
+ success $i;
+}
+
+sub patchcheck_reboot {
+ doprint "Reboot and sleep $patchcheck_sleep_time seconds\n";
+ reboot_to_good $patchcheck_sleep_time;
+}
+
+sub patchcheck {
+ my ($i) = @_;
+
+ dodie "PATCHCHECK_START[$i] not defined\n"
+ if (!defined($patchcheck_start));
+ dodie "PATCHCHECK_TYPE[$i] not defined\n"
+ if (!defined($patchcheck_type));
+
+ my $start = $patchcheck_start;
+
+ my $cherry = $patchcheck_cherry;
+ if (!defined($cherry)) {
+ $cherry = 0;
+ }
+
+ my $end = "HEAD";
+ if (defined($patchcheck_end)) {
+ $end = $patchcheck_end;
+ } elsif ($cherry) {
+ dodie "PATCHCHECK_END must be defined with PATCHCHECK_CHERRY\n";
+ }
+
+ # Get the true sha1's since we can use things like HEAD~3
+ $start = get_sha1($start);
+ $end = get_sha1($end);
+
+ my $type = $patchcheck_type;
+
+ # Can't have a test without having a test to run
+ if ($type eq "test" && !defined($run_test)) {
+ $type = "boot";
+ }
+
+ if ($cherry) {
+ open (IN, "git cherry -v $start $end|") or
+ dodie "could not get git list";
+ } else {
+ open (IN, "git log --pretty=oneline $end|") or
+ dodie "could not get git list";
+ }
+
+ my @list;
+
+ while (<IN>) {
+ chomp;
+ # git cherry adds a '+' we want to remove
+ s/^\+ //;
+ $list[$#list+1] = $_;
+ last if (/^$start/);
+ }
+ close(IN);
+
+ if (!$cherry) {
+ if ($list[$#list] !~ /^$start/) {
+ fail "SHA1 $start not found";
+ }
+
+ # go backwards in the list
+ @list = reverse @list;
+ }
+
+ doprint("Going to test the following commits:\n");
+ foreach my $l (@list) {
+ doprint "$l\n";
+ }
+
+ 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) {
+ my $sha1 = $item;
+ $sha1 =~ s/^([[:xdigit:]]+).*/$1/;
+
+ doprint "\nProcessing commit \"$item\"\n\n";
+
+ run_command "git checkout $sha1" or
+ dodie "Failed to checkout $sha1";
+
+ # only clean on the first and last patch
+ if ($item eq $list[0] ||
+ $item eq $list[$#list]) {
+ $noclean = $save_clean;
+ } else {
+ $noclean = 1;
+ }
+
+ if (defined($minconfig)) {
+ build "useconfig:$minconfig" or return 0;
+ } else {
+ # ?? no config to use?
+ build "oldconfig" or return 0;
+ }
+
+ # No need to do per patch checking if warnings file exists
+ if (!defined($warnings_file) && !defined($ignored_warnings{$sha1})) {
+ check_patch_buildlog $sha1 or return 0;
+ }
+
+ check_buildlog or return 0;
+
+ next if ($type eq "build");
+
+ my $failed = 0;
+
+ start_monitor_and_install or $failed = 1;
+
+ if (!$failed && $type ne "boot"){
+ do_run_test or $failed = 1;
+ }
+ end_monitor;
+ if ($failed) {
+ print_times;
+ return 0;
+ }
+ patchcheck_reboot;
+ print_times;
+ }
+ $in_patchcheck = 0;
+ success $i;
+
+ return 1;
+}
+
+my %depends;
+my %depcount;
+my $iflevel = 0;
+my @ifdeps;
+
+# prevent recursion
+my %read_kconfigs;
+
+sub add_dep {
+ # $config depends on $dep
+ my ($config, $dep) = @_;
+
+ if (defined($depends{$config})) {
+ $depends{$config} .= " " . $dep;
+ } else {
+ $depends{$config} = $dep;
+ }
+
+ # record the number of configs depending on $dep
+ if (defined $depcount{$dep}) {
+ $depcount{$dep}++;
+ } else {
+ $depcount{$dep} = 1;
+ }
+}
+
+# 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 dodie "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++) {
+ add_dep $config, $ifdeps[$i];
+ }
+
+ # collect the depends for the config
+ } elsif ($state eq "NEW" && /^\s*depends\s+on\s+(.*)$/) {
+
+ add_dep $config, $1;
+
+ # Get the configs that select this config
+ } elsif ($state eq "NEW" && /^\s*select\s+(\S+)/) {
+
+ # selected by depends on config
+ add_dep $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";
+ }
+
+ 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 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 chomp_config {
+ my ($config) = @_;
+
+ $config =~ s/CONFIG_//;
+
+ return $config;
+}
+
+sub get_depends {
+ my ($dep) = @_;
+
+ my $kconfig = chomp_config $dep;
+
+ $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]*[$valid]+//;
+ } else {
+ dodie "this should never happen";
+ }
+ }
+
+ return @configs;
+}
+
+my %min_configs;
+my %keep_configs;
+my %save_configs;
+my %processed_configs;
+my %nochange_config;
+
+sub test_this_config {
+ my ($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 = chomp_config $config;
+
+ # Test dependencies first
+ if (defined($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 olddefconfig 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, $output_config;
+
+ if (!defined($configs{$config}) || $configs{$config} =~ /^#/) {
+ return $config;
+ }
+
+ doprint "disabling config $config did not change .config\n";
+
+ $nochange_config{$config} = 1;
+
+ return undef;
+}
+
+sub make_min_config {
+ my ($i) = @_;
+
+ my $type = $minconfig_type;
+ if ($type ne "boot" && $type ne "test") {
+ fail "Invalid MIN_CONFIG_TYPE '$minconfig_type'\n" .
+ " make_min_config works only with 'boot' and 'test'\n" and return;
+ }
+
+ 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 "$output_minconfig exists\n";
+ if (!defined($use_output_minconfig)) {
+ if (read_yn " Use it as minconfig?") {
+ $start_minconfig = $output_minconfig;
+ }
+ } elsif ($use_output_minconfig > 0) {
+ doprint "Using $output_minconfig as MIN_CONFIG\n";
+ $start_minconfig = $output_minconfig;
+ } else {
+ doprint "Set to still use MIN_CONFIG as starting point\n";
+ }
+ }
+
+ if (!defined($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;
+
+ # All configs need a depcount
+ foreach my $config (@config_keys) {
+ my $kconfig = chomp_config $config;
+ if (!defined $depcount{$kconfig}) {
+ $depcount{$kconfig} = 0;
+ }
+ }
+
+ # 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.
+
+ my @test_configs = keys %min_configs;
+
+ # Sort keys by who is most dependent on
+ @test_configs = sort { $depcount{chomp_config($b)} <=> $depcount{chomp_config($a)} }
+ @test_configs ;
+
+ # Put configs that did not modify the config at the end.
+ 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" or $failed = 1;
+ if (!$failed) {
+ start_monitor_and_install or $failed = 1;
+
+ if ($type eq "test" && !$failed) {
+ do_run_test 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 dodie "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 mandatory configs
+ open (OUT, ">$temp_config")
+ or dodie "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_to_good $sleep_time;
+ }
+
+ success $i;
+ return 1;
+}
+
+sub make_warnings_file {
+ my ($i) = @_;
+
+ if (!defined($warnings_file)) {
+ dodie "Must define WARNINGS_FILE for make_warnings_file test";
+ }
+
+ if ($build_type eq "nobuild") {
+ dodie "BUILD_TYPE can not be 'nobuild' for make_warnings_file test";
+ }
+
+ build $build_type or dodie "Failed to build";
+
+ open(OUT, ">$warnings_file") or dodie "Can't create $warnings_file";
+
+ open(IN, $buildlog) or dodie "Can't open $buildlog";
+ while (<IN>) {
+
+ # Some compilers use UTF-8 extended for quotes
+ # for distcc heterogeneous systems, this causes issues
+ s/$utf8_quote/'/g;
+
+ if (/$check_build_re/) {
+ print OUT;
+ }
+ }
+ close(IN);
+
+ close(OUT);
+
+ success $i;
+}
+
+$#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";
+ if (!read_yn "Create it?") {
+ exit 0;
+ }
+ }
+}
+
+if (! -f $ktest_config) {
+ $newconfig = 1;
+ get_test_case;
+ open(OUT, ">$ktest_config") or die "Can not create $ktest_config";
+ print OUT << "EOF"
+# Generated by ktest.pl
+#
+
+# PWD is a ktest.pl variable that will result in the process working
+# directory that ktest.pl is executed in.
+
+# THIS_DIR is automatically assigned the PWD of the path that generated
+# the config file. It is best to use this variable when assigning other
+# directory paths within this directory. This allows you to easily
+# move the test cases to other locations or to other machines.
+#
+THIS_DIR := $variable{"PWD"}
+
+# Define each test with TEST_START
+# The config options below it will override the defaults
+TEST_START
+TEST_TYPE = $default{"TEST_TYPE"}
+
+DEFAULTS
+EOF
+;
+ close(OUT);
+}
+read_config $ktest_config;
+
+if (defined($opt{"LOG_FILE"})) {
+ $opt{"LOG_FILE"} = eval_option("LOG_FILE", $opt{"LOG_FILE"}, -1);
+}
+
+# Append any configs entered in manually to the config file.
+my @new_configs = keys %entered_configs;
+if ($#new_configs >= 0) {
+ print "\nAppending entered in configs to $ktest_config\n";
+ open(OUT, ">>$ktest_config") or die "Can not append to $ktest_config";
+ foreach my $config (@new_configs) {
+ print OUT "$config = $entered_configs{$config}\n";
+ $opt{$config} = process_variables($entered_configs{$config});
+ }
+}
+
+if ($opt{"CLEAR_LOG"} && defined($opt{"LOG_FILE"})) {
+ unlink $opt{"LOG_FILE"};
+}
+
+doprint "\n\nSTARTING AUTOMATED TESTS\n\n";
+
+for (my $i = 0, my $repeat = 1; $i <= $opt{"NUM_TESTS"}; $i += $repeat) {
+
+ if (!$i) {
+ doprint "DEFAULT OPTIONS:\n";
+ } else {
+ doprint "\nTEST $i OPTIONS";
+ if (defined($repeat_tests{$i})) {
+ $repeat = $repeat_tests{$i};
+ doprint " ITERATE $repeat";
+ }
+ doprint "\n";
+ }
+
+ foreach my $option (sort keys %opt) {
+
+ if ($option =~ /\[(\d+)\]$/) {
+ next if ($i != $1);
+ } else {
+ next if ($i);
+ }
+
+ doprint "$option = $opt{$option}\n";
+ }
+}
+
+sub option_defined {
+ my ($option) = @_;
+
+ if (defined($opt{$option}) && $opt{$option} !~ /^\s*$/) {
+ return 1;
+ }
+
+ return 0;
+}
+
+sub __set_test_option {
+ my ($name, $i) = @_;
+
+ my $option = "$name\[$i\]";
+
+ if (option_defined($option)) {
+ return $opt{$option};
+ }
+
+ foreach my $test (keys %repeat_tests) {
+ if ($i >= $test &&
+ $i < $test + $repeat_tests{$test}) {
+ $option = "$name\[$test\]";
+ if (option_defined($option)) {
+ return $opt{$option};
+ }
+ }
+ }
+
+ if (option_defined($name)) {
+ return $opt{$name};
+ }
+
+ return undef;
+}
+
+sub set_test_option {
+ my ($name, $i) = @_;
+
+ my $option = __set_test_option($name, $i);
+ return $option if (!defined($option));
+
+ return eval_option($name, $option, $i);
+}
+
+sub find_mailer {
+ my ($mailer) = @_;
+
+ my @paths = split /:/, $ENV{PATH};
+
+ # sendmail is usually in /usr/sbin
+ $paths[$#paths + 1] = "/usr/sbin";
+
+ foreach my $path (@paths) {
+ if (-x "$path/$mailer") {
+ return $path;
+ }
+ }
+
+ return undef;
+}
+
+sub do_send_mail {
+ my ($subject, $message) = @_;
+
+ if (!defined($mail_path)) {
+ # find the mailer
+ $mail_path = find_mailer $mailer;
+ if (!defined($mail_path)) {
+ die "\nCan not find $mailer in PATH\n";
+ }
+ }
+
+ if (!defined($mail_command)) {
+ if ($mailer eq "mail" || $mailer eq "mailx") {
+ $mail_command = "\$MAIL_PATH/\$MAILER -s \'\$SUBJECT\' \$MAILTO <<< \'\$MESSAGE\'";
+ } elsif ($mailer eq "sendmail" ) {
+ $mail_command = "echo \'Subject: \$SUBJECT\n\n\$MESSAGE\' | \$MAIL_PATH/\$MAILER -t \$MAILTO";
+ } else {
+ die "\nYour mailer: $mailer is not supported.\n";
+ }
+ }
+
+ $mail_command =~ s/\$MAILER/$mailer/g;
+ $mail_command =~ s/\$MAIL_PATH/$mail_path/g;
+ $mail_command =~ s/\$MAILTO/$mailto/g;
+ $mail_command =~ s/\$SUBJECT/$subject/g;
+ $mail_command =~ s/\$MESSAGE/$message/g;
+
+ run_command $mail_command;
+}
+
+sub send_email {
+
+ if (defined($mailto)) {
+ if (!defined($mailer)) {
+ doprint "No email sent: email or mailer not specified in config.\n";
+ return;
+ }
+ do_send_mail @_;
+ }
+}
+
+sub cancel_test {
+ if ($email_when_canceled) {
+ send_email("KTEST: Your [$test_type] test was cancelled",
+ "Your test started at $script_start_time was cancelled: sig int");
+ }
+ die "\nCaught Sig Int, test interrupted: $!\n"
+}
+
+$SIG{INT} = qw(cancel_test);
+
+# First we need to do is the builds
+for (my $i = 1; $i <= $opt{"NUM_TESTS"}; $i++) {
+
+ # Do not reboot on failing test options
+ $no_reboot = 1;
+ $reboot_success = 0;
+
+ $have_version = 0;
+
+ $iteration = $i;
+
+ $build_time = 0;
+ $install_time = 0;
+ $reboot_time = 0;
+ $test_time = 0;
+
+ undef %force_config;
+
+ my $makecmd = set_test_option("MAKE_CMD", $i);
+
+ $outputdir = set_test_option("OUTPUT_DIR", $i);
+ $builddir = set_test_option("BUILD_DIR", $i);
+
+ chdir $builddir || dodie "can't change directory to $builddir";
+
+ if (!-d $outputdir) {
+ mkpath($outputdir) or
+ dodie "can't create $outputdir";
+ }
+
+ $make = "$makecmd O=$outputdir";
+
+ # Load all the options into their mapped variable names
+ foreach my $opt (keys %option_map) {
+ ${$option_map{$opt}} = set_test_option($opt, $i);
+ }
+
+ $start_minconfig_defined = 1;
+
+ # The first test may override the PRE_KTEST option
+ if ($i == 1) {
+ if (defined($pre_ktest)) {
+ doprint "\n";
+ run_command $pre_ktest;
+ }
+ if ($email_when_started) {
+ send_email("KTEST: Your [$test_type] test was started",
+ "Your test was started on $script_start_time");
+ }
+ }
+
+ # Any test can override the POST_KTEST option
+ # The last test takes precedence.
+ if (defined($post_ktest)) {
+ $final_post_ktest = $post_ktest;
+ }
+
+ if (!defined($start_minconfig)) {
+ $start_minconfig_defined = 0;
+ $start_minconfig = $minconfig;
+ }
+
+ if (!-d $tmpdir) {
+ mkpath($tmpdir) or
+ dodie "can't create $tmpdir";
+ }
+
+ $ENV{"SSH_USER"} = $ssh_user;
+ $ENV{"MACHINE"} = $machine;
+
+ $buildlog = "$tmpdir/buildlog-$machine";
+ $testlog = "$tmpdir/testlog-$machine";
+ $dmesg = "$tmpdir/dmesg-$machine";
+ $output_config = "$outputdir/.config";
+
+ if (!$buildonly) {
+ $target = "$ssh_user\@$machine";
+ if ($reboot_type eq "grub") {
+ dodie "GRUB_MENU not defined" if (!defined($grub_menu));
+ } elsif ($reboot_type eq "grub2") {
+ dodie "GRUB_MENU not defined" if (!defined($grub_menu));
+ dodie "GRUB_FILE not defined" if (!defined($grub_file));
+ } elsif ($reboot_type eq "syslinux") {
+ dodie "SYSLINUX_LABEL not defined" if (!defined($syslinux_label));
+ }
+ }
+
+ my $run_type = $build_type;
+ if ($test_type eq "patchcheck") {
+ $run_type = $patchcheck_type;
+ } elsif ($test_type eq "bisect") {
+ $run_type = $bisect_type;
+ } elsif ($test_type eq "config_bisect") {
+ $run_type = $config_bisect_type;
+ } elsif ($test_type eq "make_min_config") {
+ $run_type = "";
+ } elsif ($test_type eq "make_warnings_file") {
+ $run_type = "";
+ }
+
+ # mistake in config file?
+ if (!defined($run_type)) {
+ $run_type = "ERROR";
+ }
+
+ my $installme = "";
+ $installme = " no_install" if ($no_install);
+
+ my $name = "";
+
+ if (defined($test_name)) {
+ $name = " ($test_name)";
+ }
+
+ doprint "\n\n";
+ doprint "RUNNING TEST $i of $opt{NUM_TESTS}$name with option $test_type $run_type$installme\n\n";
+
+ if (defined($pre_test)) {
+ run_command $pre_test;
+ }
+
+ unlink $dmesg;
+ unlink $buildlog;
+ unlink $testlog;
+
+ if (defined($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";
+ }
+
+ if (defined($checkout)) {
+ run_command "git checkout $checkout" or
+ dodie "failed to checkout $checkout";
+ }
+
+ $no_reboot = 0;
+
+ # A test may opt to not reboot the box
+ if ($reboot_on_success) {
+ $reboot_success = 1;
+ }
+
+ if ($test_type eq "bisect") {
+ bisect $i;
+ next;
+ } elsif ($test_type eq "config_bisect") {
+ config_bisect $i;
+ next;
+ } elsif ($test_type eq "patchcheck") {
+ patchcheck $i;
+ next;
+ } elsif ($test_type eq "make_min_config") {
+ make_min_config $i;
+ next;
+ } elsif ($test_type eq "make_warnings_file") {
+ $no_reboot = 1;
+ make_warnings_file $i;
+ next;
+ }
+
+ if ($build_type ne "nobuild") {
+ build $build_type or next;
+ check_buildlog or next;
+ }
+
+ if ($test_type eq "install") {
+ get_version;
+ install;
+ success $i;
+ next;
+ }
+
+ if ($test_type ne "build") {
+ my $failed = 0;
+ start_monitor_and_install or $failed = 1;
+
+ if (!$failed && $test_type ne "boot" && defined($run_test)) {
+ do_run_test or $failed = 1;
+ }
+ end_monitor;
+ if ($failed) {
+ print_times;
+ next;
+ }
+ }
+
+ print_times;
+
+ success $i;
+}
+
+if (defined($final_post_ktest)) {
+ run_command $final_post_ktest;
+}
+
+if ($opt{"POWEROFF_ON_SUCCESS"}) {
+ halt;
+} elsif ($opt{"REBOOT_ON_SUCCESS"} && !do_not_reboot && $reboot_success) {
+ reboot_to_good;
+} elsif (defined($switch_to_good)) {
+ # still need to get to the good kernel
+ run_command $switch_to_good;
+}
+
+
+doprint "\n $successes of $opt{NUM_TESTS} tests were successful\n\n";
+
+if ($email_when_finished) {
+ send_email("KTEST: Your [$test_type] test has finished!",
+ "$successes of $opt{NUM_TESTS} tests started at $script_start_time were successful!");
+}
+exit 0;
diff --git a/tools/testing/ktest/sample.conf b/tools/testing/ktest/sample.conf
new file mode 100644
index 0000000..6ca6ca0
--- /dev/null
+++ b/tools/testing/ktest/sample.conf
@@ -0,0 +1,1348 @@
+#
+# Config file for ktest.pl
+#
+# Place your customized version of this, in the working directory that
+# ktest.pl is run from. By default, ktest.pl will look for a file
+# called "ktest.conf", but you can name it anything you like and specify
+# the name of your config file as the first argument of ktest.pl.
+#
+# Note, all paths must be absolute
+#
+
+# Options set in the beginning of the file are considered to be
+# default options. These options can be overriden by test specific
+# options, with the following exceptions:
+#
+# LOG_FILE
+# CLEAR_LOG
+# POWEROFF_ON_SUCCESS
+# REBOOT_ON_SUCCESS
+#
+# Test specific options are set after the label:
+#
+# TEST_START
+#
+# The options after a TEST_START label are specific to that test.
+# Each TEST_START label will set up a new test. If you want to
+# perform a test more than once, you can add the ITERATE label
+# to it followed by the number of times you want that test
+# to iterate. If the ITERATE is left off, the test will only
+# be performed once.
+#
+# TEST_START ITERATE 10
+#
+# You can skip a test by adding SKIP (before or after the ITERATE
+# and number)
+#
+# TEST_START SKIP
+#
+# TEST_START SKIP ITERATE 10
+#
+# TEST_START ITERATE 10 SKIP
+#
+# The SKIP label causes the options and the test itself to be ignored.
+# This is useful to set up several different tests in one config file, and
+# only enabling the ones you want to use for a current test run.
+#
+# You can add default options anywhere in the file as well
+# with the DEFAULTS tag. This allows you to have default options
+# after the test options to keep the test options at the top
+# of the file. You can even place the DEFAULTS tag between
+# test cases (but not in the middle of a single test case)
+#
+# TEST_START
+# MIN_CONFIG = /home/test/config-test1
+#
+# DEFAULTS
+# MIN_CONFIG = /home/test/config-default
+#
+# TEST_START ITERATE 10
+#
+# The above will run the first test with MIN_CONFIG set to
+# /home/test/config-test-1. Then 10 tests will be executed
+# with MIN_CONFIG with /home/test/config-default.
+#
+# You can also disable defaults with the SKIP option
+#
+# DEFAULTS SKIP
+# MIN_CONFIG = /home/test/config-use-sometimes
+#
+# DEFAULTS
+# MIN_CONFIG = /home/test/config-most-times
+#
+# The above will ignore the first MIN_CONFIG. If you want to
+# use the first MIN_CONFIG, remove the SKIP from the first
+# DEFAULTS tag and add it to the second. Be careful, options
+# may only be declared once per test or default. If you have
+# the same option name under the same test or as default
+# ktest will fail to execute, and no tests will run.
+#
+# DEFAULTS OVERRIDE
+#
+# Options defined in the DEFAULTS section can not be duplicated
+# even if they are defined in two different DEFAULT sections.
+# This is done to catch mistakes where an option is added but
+# the previous option was forgotten about and not commented.
+#
+# The OVERRIDE keyword can be added to a section to allow this
+# section to override other DEFAULT sections values that have
+# been defined previously. It will only override options that
+# have been defined before its use. Options defined later
+# in a non override section will still error. The same option
+# can not be defined in the same section even if that section
+# is marked OVERRIDE.
+#
+#
+#
+# Both TEST_START and DEFAULTS sections can also have the IF keyword
+# The value after the IF must evaluate into a 0 or non 0 positive
+# integer, and can use the config variables (explained below).
+#
+# DEFAULTS IF ${IS_X86_32}
+#
+# The above will process the DEFAULTS section if the config
+# variable IS_X86_32 evaluates to a non zero positive integer
+# otherwise if it evaluates to zero, it will act the same
+# as if the SKIP keyword was used.
+#
+# The ELSE keyword can be used directly after a section with
+# a IF statement.
+#
+# TEST_START IF ${RUN_NET_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# ELSE
+#
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-normal
+#
+#
+# The ELSE keyword can also contain an IF statement to allow multiple
+# if then else sections. But all the sections must be either
+# DEFAULT or TEST_START, they can not be a mixture.
+#
+# TEST_START IF ${RUN_NET_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# ELSE IF ${RUN_DISK_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-tests
+#
+# ELSE IF ${RUN_CPU_TESTS}
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-cpu
+#
+# ELSE
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-network
+#
+# The if statement may also have comparisons that will and for
+# == and !=, strings may be used for both sides.
+#
+# BOX_TYPE := x86_32
+#
+# DEFAULTS IF ${BOX_TYPE} == x86_32
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-32
+# ELSE
+# BUILD_TYPE = useconfig:${CONFIG_DIR}/config-64
+#
+# The DEFINED keyword can be used by the IF statements too.
+# It returns true if the given config variable or option has been defined
+# or false otherwise.
+#
+#
+# DEFAULTS IF DEFINED USE_CC
+# CC := ${USE_CC}
+# ELSE
+# CC := gcc
+#
+#
+# As well as NOT DEFINED.
+#
+# DEFAULTS IF NOT DEFINED MAKE_CMD
+# MAKE_CMD := make ARCH=x86
+#
+#
+# And/or ops (&&,||) may also be used to make complex conditionals.
+#
+# TEST_START IF (DEFINED ALL_TESTS || ${MYTEST} == boottest) && ${MACHINE} == gandalf
+#
+# Notice the use of parentheses. Without any parentheses the above would be
+# processed the same as:
+#
+# TEST_START IF DEFINED ALL_TESTS || (${MYTEST} == boottest && ${MACHINE} == gandalf)
+#
+#
+#
+# INCLUDE file
+#
+# The INCLUDE keyword may be used in DEFAULT sections. This will
+# read another config file and process that file as well. The included
+# file can include other files, add new test cases or default
+# statements. Config variables will be passed to these files and changes
+# to config variables will be seen by top level config files. Including
+# a file is processed just like the contents of the file was cut and pasted
+# into the top level file, except, that include files that end with
+# TEST_START sections will have that section ended at the end of
+# the include file. That is, an included file is included followed
+# by another DEFAULT keyword.
+#
+# Unlike other files referenced in this config, the file path does not need
+# to be absolute. If the file does not start with '/', then the directory
+# that the current config file was located in is used. If no config by the
+# given name is found there, then the current directory is searched.
+#
+# INCLUDE myfile
+# DEFAULT
+#
+# is the same as:
+#
+# INCLUDE myfile
+#
+# Note, if the include file does not contain a full path, the file is
+# searched first by the location of the original include file, and then
+# by the location that ktest.pl was executed in.
+#
+
+#### Config variables ####
+#
+# This config file can also contain "config variables".
+# These are assigned with ":=" instead of the ktest option
+# assigment "=".
+#
+# The difference between ktest options and config variables
+# is that config variables can be used multiple times,
+# where each instance will override the previous instance.
+# And that they only live at time of processing this config.
+#
+# The advantage to config variables are that they can be used
+# by any option or any other config variables to define thing
+# that you may use over and over again in the options.
+#
+# For example:
+#
+# USER := root
+# TARGET := mybox
+# TEST_CASE := ssh ${USER}@${TARGET} /path/to/my/test
+#
+# TEST_START
+# MIN_CONFIG = config1
+# TEST = ${TEST_CASE}
+#
+# TEST_START
+# MIN_CONFIG = config2
+# TEST = ${TEST_CASE}
+#
+# TEST_CASE := ssh ${USER}@${TARGET} /path/to/my/test2
+#
+# TEST_START
+# MIN_CONFIG = config1
+# TEST = ${TEST_CASE}
+#
+# TEST_START
+# MIN_CONFIG = config2
+# TEST = ${TEST_CASE}
+#
+# TEST_DIR := /home/me/test
+#
+# BUILD_DIR = ${TEST_DIR}/linux.git
+# OUTPUT_DIR = ${TEST_DIR}/test
+#
+# Note, the config variables are evaluated immediately, thus
+# updating TARGET after TEST_CASE has been assigned does nothing
+# to TEST_CASE.
+#
+# As shown in the example, to evaluate a config variable, you
+# use the ${X} convention. Simple $X will not work.
+#
+# If the config variable does not exist, the ${X} will not
+# be evaluated. Thus:
+#
+# MAKE_CMD = PATH=/mypath:${PATH} make
+#
+# If PATH is not a config variable, then the ${PATH} in
+# the MAKE_CMD option will be evaluated by the shell when
+# the MAKE_CMD option is passed into shell processing.
+
+#### Using options in other options ####
+#
+# Options that are defined in the config file may also be used
+# by other options. All options are evaulated at time of
+# use (except that config variables are evaluated at config
+# processing time).
+#
+# If an ktest option is used within another option, instead of
+# typing it again in that option you can simply use the option
+# just like you can config variables.
+#
+# MACHINE = mybox
+#
+# TEST = ssh root@${MACHINE} /path/to/test
+#
+# The option will be used per test case. Thus:
+#
+# TEST_TYPE = test
+# TEST = ssh root@{MACHINE}
+#
+# TEST_START
+# MACHINE = box1
+#
+# TEST_START
+# MACHINE = box2
+#
+# For both test cases, MACHINE will be evaluated at the time
+# of the test case. The first test will run ssh root@box1
+# and the second will run ssh root@box2.
+
+#### Mandatory Default Options ####
+
+# These options must be in the default section, although most
+# may be overridden by test options.
+
+# The machine hostname that you will test
+#MACHINE = target
+
+# The box is expected to have ssh on normal bootup, provide the user
+# (most likely root, since you need privileged operations)
+#SSH_USER = root
+
+# The directory that contains the Linux source code
+#BUILD_DIR = /home/test/linux.git
+
+# The directory that the objects will be built
+# (can not be same as BUILD_DIR)
+#OUTPUT_DIR = /home/test/build/target
+
+# The location of the compiled file to copy to the target
+# (relative to OUTPUT_DIR)
+#BUILD_TARGET = arch/x86/boot/bzImage
+
+# The place to put your image on the test machine
+#TARGET_IMAGE = /boot/vmlinuz-test
+
+# A script or command to reboot the box
+#
+# Here is a digital loggers power switch example
+#POWER_CYCLE = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin@power/outlet?5=CCL'
+#
+# Here is an example to reboot a virtual box on the current host
+# with the name "Guest".
+#POWER_CYCLE = virsh destroy Guest; sleep 5; virsh start Guest
+
+# The script or command that reads the console
+#
+# If you use ttywatch server, something like the following would work.
+#CONSOLE = nc -d localhost 3001
+#
+# For a virtual machine with guest name "Guest".
+#CONSOLE = virsh console Guest
+
+# Signal to send to kill console.
+# ktest.pl will create a child process to monitor the console.
+# When the console is finished, ktest will kill the child process
+# with this signal.
+# (default INT)
+#CLOSE_CONSOLE_SIGNAL = HUP
+
+# Required version ending to differentiate the test
+# from other linux builds on the system.
+#LOCALVERSION = -test
+
+# For REBOOT_TYPE = grub2, you must specify where the grub.cfg
+# file is. This is the file that is searched to find the menu
+# option to boot to with GRUB_REBOOT
+#GRUB_FILE = /boot/grub2/grub.cfg
+
+# The tool for REBOOT_TYPE = grub2 to set the next reboot kernel
+# to boot into (one shot mode).
+# (default grub2_reboot)
+#GRUB_REBOOT = grub2_reboot
+
+# The grub title name for the test kernel to boot
+# (Only mandatory if REBOOT_TYPE = grub or grub2)
+#
+# Note, ktest.pl will not update the grub menu.lst, you need to
+# manually add an option for the test. ktest.pl will search
+# the grub menu.lst for this option to find what kernel to
+# reboot into.
+#
+# For example, if in the /boot/grub/menu.lst the test kernel title has:
+# title Test Kernel
+# kernel vmlinuz-test
+#
+# For grub2, a search of top level "menuentry"s are done. No
+# submenu is searched. The menu is found by searching for the
+# contents of GRUB_MENU in the line that starts with "menuentry".
+# You may want to include the quotes around the option. For example:
+# for: menuentry 'Test Kernel'
+# do a: GRUB_MENU = 'Test Kernel'
+# For customizing, add your entry in /etc/grub.d/40_custom.
+#
+#GRUB_MENU = Test Kernel
+
+# For REBOOT_TYPE = syslinux, the name of the syslinux executable
+# (on the target) to use to set up the next reboot to boot the
+# test kernel.
+# (default extlinux)
+#SYSLINUX = syslinux
+
+# For REBOOT_TYPE = syslinux, the path that is passed to to the
+# syslinux command where syslinux is installed.
+# (default /boot/extlinux)
+#SYSLINUX_PATH = /boot/syslinux
+
+# For REBOOT_TYPE = syslinux, the syslinux label that references the
+# test kernel in the syslinux config file.
+# (default undefined)
+#SYSLINUX_LABEL = "test-kernel"
+
+# A script to reboot the target into the test kernel
+# This and SWITCH_TO_TEST are about the same, except
+# SWITCH_TO_TEST is run even for REBOOT_TYPE = grub.
+# This may be left undefined.
+# (default undefined)
+#REBOOT_SCRIPT =
+
+#### Optional Config Options (all have defaults) ####
+
+# Email options for receiving notifications. Users must setup
+# the specified mailer prior to using this feature.
+#
+# (default undefined)
+#MAILTO =
+#
+# Supported mailers: sendmail, mail, mailx
+# (default sendmail)
+#MAILER = sendmail
+#
+# The executable to run
+# (default: for sendmail "/usr/sbin/sendmail", otherwise equals ${MAILER})
+#MAIL_EXEC = /usr/sbin/sendmail
+#
+# The command used to send mail, which uses the above options
+# can be modified. By default if the mailer is "sendmail" then
+# MAIL_COMMAND = echo \'Subject: $SUBJECT\n\n$MESSAGE\' | $MAIL_PATH/$MAILER -t $MAILTO
+# For mail or mailx:
+# MAIL_COMMAND = "$MAIL_PATH/$MAILER -s \'$SUBJECT\' $MAILTO <<< \'$MESSAGE\'
+# ktest.pl will do the substitution for MAIL_PATH, MAILER, MAILTO at the time
+# it sends the mail if "$FOO" format is used. If "${FOO}" format is used,
+# then the substitutions will occur at the time the config file is read.
+# But note, MAIL_PATH and MAILER require being set by the config file if
+# ${MAIL_PATH} or ${MAILER} are used, but not if $MAIL_PATH or $MAILER are.
+#MAIL_COMMAND = echo \'Subject: $SUBJECT\n\n$MESSAGE\' | $MAIL_PATH/$MAILER -t $MAILTO
+#
+# Errors are defined as those would terminate the script
+# (default 1)
+#EMAIL_ON_ERROR = 1
+# (default 1)
+#EMAIL_WHEN_FINISHED = 1
+# (default 0)
+#EMAIL_WHEN_STARTED = 1
+#
+# Users can cancel the test by Ctrl^C
+# (default 0)
+#EMAIL_WHEN_CANCELED = 1
+
+# Start a test setup. If you leave this off, all options
+# will be default and the test will run once.
+# This is a label and not really an option (it takes no value).
+# You can append ITERATE and a number after it to iterate the
+# test a number of times, or SKIP to ignore this test.
+#
+#TEST_START
+#TEST_START ITERATE 5
+#TEST_START SKIP
+
+# Have the following options as default again. Used after tests
+# have already been defined by TEST_START. Optionally, you can
+# just define all default options before the first TEST_START
+# and you do not need this option.
+#
+# This is a label and not really an option (it takes no value).
+# You can append SKIP to this label and the options within this
+# section will be ignored.
+#
+# DEFAULTS
+# DEFAULTS SKIP
+
+# If you want to execute some command before the first test runs
+# you can set this option. Note, it can be set as a default option
+# or an option in the first test case. All other test cases will
+# ignore it. If both the default and first test have this option
+# set, then the first test will take precedence.
+#
+# default (undefined)
+#PRE_KTEST = ${SSH} ~/set_up_test
+
+# If you want to execute some command after all the tests have
+# completed, you can set this option. Note, it can be set as a
+# default or any test case can override it. If multiple test cases
+# set this option, then the last test case that set it will take
+# precedence
+#
+# default (undefined)
+#POST_KTEST = ${SSH} ~/dismantle_test
+
+# The default test type (default test)
+# The test types may be:
+# build - only build the kernel, do nothing else
+# install - build and install, but do nothing else (does not reboot)
+# boot - build, install, and boot the kernel
+# test - build, boot and if TEST is set, run the test script
+# (If TEST is not set, it defaults back to boot)
+# bisect - Perform a bisect on the kernel (see BISECT_TYPE below)
+# patchcheck - Do a test on a series of commits in git (see PATCHCHECK below)
+#TEST_TYPE = test
+
+# Test to run if there is a successful boot and TEST_TYPE is test.
+# Must exit with 0 on success and non zero on error
+# default (undefined)
+#TEST = ssh user@machine /root/run_test
+
+# The build type is any make config type or special command
+# (default randconfig)
+# nobuild - skip the clean and build step
+# useconfig:/path/to/config - use the given config and run
+# oldconfig on it.
+# This option is ignored if TEST_TYPE is patchcheck or bisect
+#BUILD_TYPE = randconfig
+
+# The make command (default make)
+# If you are building a 32bit x86 on a 64 bit host
+#MAKE_CMD = CC=i386-gcc AS=i386-as make ARCH=i386
+
+# Any build options for the make of the kernel (not for other makes, like configs)
+# (default "")
+#BUILD_OPTIONS = -j20
+
+# If you need to do some special handling before installing
+# you can add a script with this option.
+# The environment variable KERNEL_VERSION will be set to the
+# kernel version that is used.
+#
+# default (undefined)
+#PRE_INSTALL = ssh user@target rm -rf '/lib/modules/*-test*'
+
+# If you need an initrd, you can add a script or code here to install
+# it. The environment variable KERNEL_VERSION will be set to the
+# kernel version that is used. Remember to add the initrd line
+# to your grub menu.lst file.
+#
+# Here's a couple of examples to use:
+#POST_INSTALL = ssh user@target /sbin/mkinitrd --allow-missing -f /boot/initramfs-test.img $KERNEL_VERSION
+#
+# or on some systems:
+#POST_INSTALL = ssh user@target /sbin/dracut -f /boot/initramfs-test.img $KERNEL_VERSION
+
+# If for some reason you just want to boot the kernel and you do not
+# want the test to install anything new. For example, you may just want
+# to boot test the same kernel over and over and do not want to go through
+# the hassle of installing anything, you can set this option to 1
+# (default 0)
+#NO_INSTALL = 1
+
+# If there is a command that you want to run before the individual test
+# case executes, then you can set this option
+#
+# default (undefined)
+#PRE_TEST = ${SSH} reboot_to_special_kernel
+
+# If there is a command you want to run after the individual test case
+# completes, then you can set this option.
+#
+# default (undefined)
+#POST_TEST = cd ${BUILD_DIR}; git reset --hard
+
+# 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", "grub2", "syslinux" and "script"
+# (default grub)
+# If you specify grub, it will assume grub version 1
+# and will search in /boot/grub/menu.lst for the title $GRUB_MENU
+# and select that target to reboot to the kernel. If this is not
+# your setup, then specify "script" and have a command or script
+# specified in REBOOT_SCRIPT to boot to the target.
+#
+# For REBOOT_TYPE = grub2, you must define both GRUB_MENU and
+# GRUB_FILE.
+#
+# For REBOOT_TYPE = syslinux, you must define SYSLINUX_LABEL, and
+# perhaps modify SYSLINUX (default extlinux) and SYSLINUX_PATH
+# (default /boot/extlinux)
+#
+# The entry in /boot/grub/menu.lst must be entered in manually.
+# The test will not modify that file.
+#REBOOT_TYPE = grub
+
+# If you are using a machine that doesn't boot with grub, and
+# perhaps gets its kernel from a remote server (tftp), then
+# you can use this option to update the target image with the
+# test image.
+#
+# You could also do the same with POST_INSTALL, but the difference
+# between that option and this option is that POST_INSTALL runs
+# after the install, where this one runs just before a reboot.
+# (default undefined)
+#SWITCH_TO_TEST = cp ${OUTPUT_DIR}/${BUILD_TARGET} ${TARGET_IMAGE}
+
+# If you are using a machine that doesn't boot with grub, and
+# perhaps gets its kernel from a remote server (tftp), then
+# you can use this option to update the target image with the
+# the known good image to reboot safely back into.
+#
+# This option holds a command that will execute before needing
+# to reboot to a good known image.
+# (default undefined)
+#SWITCH_TO_GOOD = ssh ${SSH_USER}/${MACHINE} cp good_image ${TARGET_IMAGE}
+
+# The min config that is needed to build for the machine
+# A nice way to create this is with the following:
+#
+# $ ssh target
+# $ lsmod > mymods
+# $ scp mymods host:/tmp
+# $ exit
+# $ cd linux.git
+# $ rm .config
+# $ make LSMOD=mymods localyesconfig
+# $ grep '^CONFIG' .config > /home/test/config-min
+#
+# If you want even less configs:
+#
+# log in directly to target (do not ssh)
+#
+# $ su
+# # lsmod | cut -d' ' -f1 | xargs rmmod
+#
+# repeat the above several times
+#
+# # lsmod > mymods
+# # reboot
+#
+# May need to reboot to get your network back to copy the mymods
+# to the host, and then remove the previous .config and run the
+# localyesconfig again. The CONFIG_MIN generated like this will
+# not guarantee network activity to the box so the TEST_TYPE of
+# test may fail.
+#
+# You might also want to set:
+# CONFIG_CMDLINE="<your options here>"
+# randconfig may set the above and override your real command
+# line options.
+# (default undefined)
+#MIN_CONFIG = /home/test/config-min
+
+# Sometimes there's options that just break the boot and
+# you do not care about. Here are a few:
+# # CONFIG_STAGING is not set
+# Staging drivers are horrible, and can break the build.
+# # CONFIG_SCSI_DEBUG is not set
+# SCSI_DEBUG may change your root partition
+# # CONFIG_KGDB_SERIAL_CONSOLE is not set
+# KGDB may cause oops waiting for a connection that's not there.
+# This option points to the file containing config options that will be prepended
+# to the MIN_CONFIG (or be the MIN_CONFIG if it is not set)
+#
+# Note, config options in MIN_CONFIG will override these options.
+#
+# (default undefined)
+#ADD_CONFIG = /home/test/config-broken
+
+# The location on the host where to write temp files
+# (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.
+# (default undefined)
+#LOG_FILE = /home/test/logfiles/target.log
+
+# Remove old logfile if it exists before starting all tests.
+# Note, this is a DEFAULT section only option.
+# (default 0)
+#CLEAR_LOG = 0
+
+# Line to define a successful boot up in console output.
+# This is what the line contains, not the entire line. If you need
+# the entire line to match, then use regural expression syntax like:
+# (do not add any quotes around it)
+#
+# SUCCESS_LINE = ^MyBox Login:$
+#
+# (default "login:")
+#SUCCESS_LINE = login:
+
+# To speed up between reboots, defining a line that the
+# default kernel produces that represents that the default
+# kernel has successfully booted and can be used to pass
+# a new test kernel to it. Otherwise ktest.pl will wait till
+# SLEEP_TIME to continue.
+# (default undefined)
+#REBOOT_SUCCESS_LINE = login:
+
+# In case the console constantly fills the screen, having
+# a specified time to stop the test after success is recommended.
+# (in seconds)
+# (default 10)
+#STOP_AFTER_SUCCESS = 10
+
+# In case the console constantly fills the screen, having
+# a specified time to stop the test after failure is recommended.
+# (in seconds)
+# (default 60)
+#STOP_AFTER_FAILURE = 60
+
+# In case the console constantly fills the screen, having
+# a specified time to stop the test if it never succeeds nor fails
+# is recommended.
+# Note: this is ignored if a success or failure is detected.
+# (in seconds)
+# (default 600, -1 is to never stop)
+#STOP_TEST_AFTER = 600
+
+# Stop testing if a build fails. If set, the script will end if
+# a failure is detected, otherwise it will save off the .config,
+# dmesg and bootlog in a directory called
+# MACHINE-TEST_TYPE_BUILD_TYPE-fail-yyyymmddhhmmss
+# if the STORE_FAILURES directory is set.
+# (default 1)
+# Note, even if this is set to zero, there are some errors that still
+# stop the tests.
+#DIE_ON_FAILURE = 1
+
+# Directory to store failure directories on failure. If this is not
+# set, DIE_ON_FAILURE=0 will not save off the .config, dmesg and
+# bootlog. This option is ignored if DIE_ON_FAILURE is not set.
+# (default undefined)
+#STORE_FAILURES = /home/test/failures
+
+# Directory to store success directories on success. If this is not
+# set, the .config, dmesg and bootlog will not be saved if a
+# test succeeds.
+# (default undefined)
+#STORE_SUCCESSES = /home/test/successes
+
+# Build without doing a make mrproper, or removing .config
+# (default 0)
+#BUILD_NOCLEAN = 0
+
+# As the test reads the console, after it hits the SUCCESS_LINE
+# the time it waits for the monitor to settle down between reads
+# can usually be lowered.
+# (in seconds) (default 1)
+#BOOTED_TIMEOUT = 1
+
+# The timeout in seconds when we consider the box hung after
+# the console stop producing output. Be sure to leave enough
+# time here to get pass a reboot. Some machines may not produce
+# any console output for a long time during a reboot. You do
+# not want the test to fail just because the system was in
+# the process of rebooting to the test kernel.
+# (default 120)
+#TIMEOUT = 120
+
+# The timeout in seconds when to test if the box can be rebooted
+# or not. Before issuing the reboot command, a ssh connection
+# is attempted to see if the target machine is still active.
+# If the target does not connect within this timeout, a power cycle
+# is issued instead of a reboot.
+# CONNECT_TIMEOUT = 25
+
+# In between tests, a reboot of the box may occur, and this
+# is the time to wait for the console after it stops producing
+# output. Some machines may not produce a large lag on reboot
+# so this should accommodate it.
+# The difference between this and TIMEOUT, is that TIMEOUT happens
+# when rebooting to the test kernel. This sleep time happens
+# after a test has completed and we are about to start running
+# another test. If a reboot to the reliable kernel happens,
+# we wait SLEEP_TIME for the console to stop producing output
+# before starting the next test.
+#
+# You can speed up reboot times even more by setting REBOOT_SUCCESS_LINE.
+# (default 60)
+#SLEEP_TIME = 60
+
+# The time in between bisects to sleep (in seconds)
+# (default 60)
+#BISECT_SLEEP_TIME = 60
+
+# The max wait time (in seconds) for waiting for the console to finish.
+# If for some reason, the console is outputting content without
+# ever finishing, this will cause ktest to get stuck. This
+# option is the max time ktest will wait for the monitor (console)
+# to settle down before continuing.
+# (default 1800)
+#MAX_MONITOR_WAIT
+
+# The time in between patch checks to sleep (in seconds)
+# (default 60)
+#PATCHCHECK_SLEEP_TIME = 60
+
+# Reboot the target box on error (default 0)
+#REBOOT_ON_ERROR = 0
+
+# Power off the target on error (ignored if REBOOT_ON_ERROR is set)
+# Note, this is a DEFAULT section only option.
+# (default 0)
+#POWEROFF_ON_ERROR = 0
+
+# Power off the target after all tests have completed successfully
+# Note, this is a DEFAULT section only option.
+# (default 0)
+#POWEROFF_ON_SUCCESS = 0
+
+# Reboot the target after all test completed successfully (default 1)
+# (ignored if POWEROFF_ON_SUCCESS is set)
+#REBOOT_ON_SUCCESS = 1
+
+# In case there are isses with rebooting, you can specify this
+# to always powercycle after this amount of time after calling
+# reboot.
+# Note, POWERCYCLE_AFTER_REBOOT = 0 does NOT disable it. It just
+# makes it powercycle immediately after rebooting. Do not define
+# it if you do not want it.
+# (default undefined)
+#POWERCYCLE_AFTER_REBOOT = 5
+
+# In case there's isses with halting, you can specify this
+# to always poweroff after this amount of time after calling
+# halt.
+# Note, POWEROFF_AFTER_HALT = 0 does NOT disable it. It just
+# makes it poweroff immediately after halting. Do not define
+# it if you do not want it.
+# (default undefined)
+#POWEROFF_AFTER_HALT = 20
+
+# A script or command to power off the box (default undefined)
+# Needed for POWEROFF_ON_ERROR and SUCCESS
+#
+# Example for digital loggers power switch:
+#POWER_OFF = wget --no-proxy -O /dev/null -q --auth-no-challenge 'http://admin:admin@power/outlet?5=OFF'
+#
+# Example for a virtual guest call "Guest".
+#POWER_OFF = virsh destroy Guest
+
+# To have the build fail on "new" warnings, create a file that
+# contains a list of all known warnings (they must match exactly
+# to the line with 'warning:', 'error:' or 'Error:'. If the option
+# WARNINGS_FILE is set, then that file will be read, and if the
+# build detects a warning, it will examine this file and if the
+# warning does not exist in it, it will fail the build.
+#
+# Note, if this option is defined to a file that does not exist
+# then any warning will fail the build.
+# (see make_warnings_file below)
+#
+# (optional, default undefined)
+#WARNINGS_FILE = ${OUTPUT_DIR}/warnings_file
+
+# The way to execute a command on the target
+# (default ssh $SSH_USER@$MACHINE $SSH_COMMAND";)
+# The variables SSH_USER, MACHINE and SSH_COMMAND are defined
+#SSH_EXEC = ssh $SSH_USER@$MACHINE $SSH_COMMAND";
+
+# The way to copy a file to the target (install and modules)
+# (default scp $SRC_FILE $SSH_USER@$MACHINE:$DST_FILE)
+# The variables SSH_USER, MACHINE are defined by the config
+# SRC_FILE and DST_FILE are ktest internal variables and
+# should only have '$' and not the '${}' notation.
+# (default scp $SRC_FILE ${SSH_USER}@${MACHINE}:$DST_FILE)
+#SCP_TO_TARGET = echo skip scp for $SRC_FILE $DST_FILE
+
+# If install needs to be different than modules, then this
+# option will override the SCP_TO_TARGET for installation.
+# (default ${SCP_TO_TARGET} )
+#SCP_TO_TARGET_INSTALL = scp $SRC_FILE tftp@tftpserver:$DST_FILE
+
+# The nice way to reboot the target
+# (default ssh $SSH_USER@$MACHINE reboot)
+# 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
+
+# All options in the config file should be either used by ktest
+# or could be used within a value of another option. If an option
+# in the config file is not used, ktest will warn about it and ask
+# if you want to continue.
+#
+# If you don't care if there are non-used options, enable this
+# option. Be careful though, a non-used option is usually a sign
+# of an option name being typed incorrectly.
+# (default 0)
+#IGNORE_UNUSED = 1
+
+# When testing a kernel that happens to have WARNINGs, and call
+# traces, ktest.pl will detect these and fail a boot or test run
+# due to warnings. By setting this option, ktest will ignore
+# call traces, and will not fail a test if the kernel produces
+# an oops. Use this option with care.
+# (default 0)
+#IGNORE_ERRORS = 1
+
+#### Per test run options ####
+# The following options are only allowed in TEST_START sections.
+# They are ignored in the DEFAULTS sections.
+#
+# All of these are optional and undefined by default, although
+# some of these options are required for TEST_TYPE of patchcheck
+# and bisect.
+#
+#
+# CHECKOUT = branch
+#
+# If the BUILD_DIR is a git repository, then you can set this option
+# to checkout the given branch before running the TEST. If you
+# specify this for the first run, that branch will be used for
+# 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
+#
+# This expects the BUILD_DIR to be a git repository, and
+# will checkout the PATCHCHECK_START commit.
+#
+# The option BUILD_TYPE will be ignored.
+#
+# The MIN_CONFIG will be used for all builds of the patchcheck. The build type
+# used for patchcheck is oldconfig.
+#
+# PATCHCHECK_START is required and is the first patch to
+# test (the SHA1 of the commit). You may also specify anything
+# that git checkout allows (branch name, tage, HEAD~3).
+#
+# PATCHCHECK_END is the last patch to check (default HEAD)
+#
+# PATCHCHECK_CHERRY if set to non zero, then git cherry will be
+# performed against PATCHCHECK_START and PATCHCHECK_END. That is
+#
+# git cherry ${PATCHCHECK_START} ${PATCHCHECK_END}
+#
+# Then the changes found will be tested.
+#
+# Note, PATCHCHECK_CHERRY requires PATCHCHECK_END to be defined.
+# (default 0)
+#
+# PATCHCHECK_TYPE is required and is the type of test to run:
+# 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, 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
+# what makes patchcheck different from the other tests, is if
+# BUILD_NOCLEAN is not set, only the first and last patch run
+# make mrproper. This helps speed up the test.
+#
+# Example:
+# TEST_START
+# TEST_TYPE = patchcheck
+# CHECKOUT = mybranch
+# PATCHCHECK_TYPE = boot
+# PATCHCHECK_START = 747e94ae3d1b4c9bf5380e569f614eb9040b79e7
+# PATCHCHECK_END = HEAD~2
+# IGNORE_WARNINGS = 42f9c6b69b54946ffc0515f57d01dc7f5c0e4712 0c17ca2c7187f431d8ffc79e81addc730f33d128
+#
+#
+#
+# For TEST_TYPE = bisect
+#
+# You can specify a git bisect if the BUILD_DIR is a git repository.
+# The MIN_CONFIG will be used for all builds of the bisect. The build type
+# used for bisecting is oldconfig.
+#
+# The option BUILD_TYPE will be ignored.
+#
+# BISECT_TYPE is the type of test to perform:
+# build - bad fails to build
+# boot - bad builds but fails to boot
+# test - bad boots but fails a test
+#
+# BISECT_GOOD is the commit (SHA1) to label as good (accepts all git good commit types)
+# BISECT_BAD is the commit to label as bad (accepts all git bad commit types)
+#
+# The above three options are required for a bisect operation.
+#
+# BISECT_REPLAY = /path/to/replay/file (optional, default undefined)
+#
+# If an operation failed in the bisect that was not expected to
+# fail. Then the test ends. The state of the BUILD_DIR will be
+# left off at where the failure occurred. You can examine the
+# reason for the failure, and perhaps even find a git commit
+# that would work to continue with. You can run:
+#
+# git bisect log > /path/to/replay/file
+#
+# The adding:
+#
+# BISECT_REPLAY= /path/to/replay/file
+#
+# And running the test again. The test will perform the initial
+# git bisect start, git bisect good, and git bisect bad, and
+# then it will run git bisect replay on this file, before
+# continuing with the bisect.
+#
+# BISECT_START = commit (optional, default undefined)
+#
+# As with BISECT_REPLAY, if the test failed on a commit that
+# just happen to have a bad commit in the middle of the bisect,
+# and you need to skip it. If BISECT_START is defined, it
+# will checkout that commit after doing the initial git bisect start,
+# git bisect good, git bisect bad, and running the git bisect replay
+# if the BISECT_REPLAY is set.
+#
+# BISECT_SKIP = 1 (optional, default 0)
+#
+# If BISECT_TYPE is set to test but the build fails, ktest will
+# simply fail the test and end their. You could use BISECT_REPLAY
+# and BISECT_START to resume after you found a new starting point,
+# or you could set BISECT_SKIP to 1. If BISECT_SKIP is set to 1,
+# when something other than the BISECT_TYPE fails, ktest.pl will
+# run "git bisect skip" and try again.
+#
+# BISECT_FILES = <path> (optional, default undefined)
+#
+# To just run the git bisect on a specific path, set BISECT_FILES.
+# For example:
+#
+# BISECT_FILES = arch/x86 kernel/time
+#
+# Will run the bisect with "git bisect start -- arch/x86 kernel/time"
+#
+# BISECT_REVERSE = 1 (optional, default 0)
+#
+# In those strange instances where it was broken forever
+# and you are trying to find where it started to work!
+# Set BISECT_GOOD to the commit that was last known to fail
+# Set BISECT_BAD to the commit that is known to start working.
+# With BISECT_REVERSE = 1, The test will consider failures as
+# good, and success as bad.
+#
+# BISECT_MANUAL = 1 (optional, default 0)
+#
+# In case there's a problem with automating the bisect for
+# whatever reason. (Can't reboot, want to inspect each iteration)
+# Doing a BISECT_MANUAL will have the test wait for you to
+# tell it if the test passed or failed after each iteration.
+# This is basicall the same as running git bisect yourself
+# but ktest will rebuild and install the kernel for you.
+#
+# BISECT_CHECK = 1 (optional, default 0)
+#
+# Just to be sure the good is good and bad is bad, setting
+# BISECT_CHECK to 1 will start the bisect by first checking
+# out BISECT_BAD and makes sure it fails, then it will check
+# out BISECT_GOOD and makes sure it succeeds before starting
+# the bisect (it works for BISECT_REVERSE too).
+#
+# You can limit the test to just check BISECT_GOOD or
+# BISECT_BAD with BISECT_CHECK = good or
+# BISECT_CHECK = bad, respectively.
+#
+# BISECT_TRIES = 5 (optional, default 1)
+#
+# For those cases that it takes several tries to hit a bug,
+# the BISECT_TRIES is useful. It is the number of times the
+# test is ran before it says the kernel is good. The first failure
+# will stop trying and mark the current SHA1 as bad.
+#
+# Note, as with all race bugs, there's no guarantee that if
+# it succeeds, it is really a good bisect. But it helps in case
+# the bug is some what reliable.
+#
+# You can set BISECT_TRIES to zero, and all tests will be considered
+# good, unless you also set BISECT_MANUAL.
+#
+# BISECT_RET_GOOD = 0 (optional, default undefined)
+#
+# In case the specificed test returns something other than just
+# 0 for good, and non-zero for bad, you can override 0 being
+# good by defining BISECT_RET_GOOD.
+#
+# BISECT_RET_BAD = 1 (optional, default undefined)
+#
+# In case the specificed test returns something other than just
+# 0 for good, and non-zero for bad, you can override non-zero being
+# bad by defining BISECT_RET_BAD.
+#
+# BISECT_RET_ABORT = 255 (optional, default undefined)
+#
+# If you need to abort the bisect if the test discovers something
+# that was wrong, you can define BISECT_RET_ABORT to be the error
+# code returned by the test in order to abort the bisect.
+#
+# BISECT_RET_SKIP = 2 (optional, default undefined)
+#
+# If the test detects that the current commit is neither good
+# nor bad, but something else happened (another bug detected)
+# you can specify BISECT_RET_SKIP to an error code that the
+# test returns when it should skip the current commit.
+#
+# BISECT_RET_DEFAULT = good (optional, default undefined)
+#
+# You can override the default of what to do when the above
+# options are not hit. This may be one of, "good", "bad",
+# "abort" or "skip" (without the quotes).
+#
+# Note, if you do not define any of the previous BISECT_RET_*
+# and define BISECT_RET_DEFAULT, all bisects results will do
+# what the BISECT_RET_DEFAULT has.
+#
+#
+# Example:
+# TEST_START
+# TEST_TYPE = bisect
+# BISECT_GOOD = v2.6.36
+# BISECT_BAD = b5153163ed580e00c67bdfecb02b2e3843817b3e
+# BISECT_TYPE = build
+# MIN_CONFIG = /home/test/config-bisect
+#
+#
+#
+# For TEST_TYPE = config_bisect
+#
+# In those cases that you have two different configs. One of them
+# work, the other does not, and you do not know what config causes
+# the problem.
+# The TEST_TYPE config_bisect will bisect the bad config looking for
+# what config causes the failure.
+#
+# The way it works is this:
+#
+# You can specify a good config with CONFIG_BISECT_GOOD, otherwise it
+# will use the MIN_CONFIG, and if that's not specified, it will use
+# the config that comes with "make defconfig".
+#
+# It runs both the good and bad configs through a make oldconfig to
+# make sure that they are set up for the kernel that is checked out.
+#
+# It then reads the configs that are set, as well as the ones that are
+# not set for both the good and bad configs, and then compares them.
+# It will set half of the good configs within the bad config (note,
+# "set" means to make the bad config match the good config, a config
+# in the good config that is off, will be turned off in the bad
+# config. That is considered a "set").
+#
+# It tests this new config and if it works, it becomes the new good
+# config, otherwise it becomes the new bad config. It continues this
+# process until there's only one config left and it will report that
+# config.
+#
+# The "bad config" can also be a config that is needed to boot but was
+# disabled because it depended on something that wasn't set.
+#
+# During this process, it saves the current good and bad configs in
+# ${TMP_DIR}/good_config and ${TMP_DIR}/bad_config respectively.
+# If you stop the test, you can copy them to a new location to
+# reuse them again.
+#
+# Although the MIN_CONFIG may be the config it starts with, the
+# MIN_CONFIG is ignored.
+#
+# The option BUILD_TYPE will be ignored.
+#
+# CONFIG_BISECT_TYPE is the type of test to perform:
+# build - bad fails to build
+# boot - bad builds but fails to boot
+# test - bad boots but fails a test
+#
+# 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.
+#
+# 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, if MIN_CONFIG is not set
+# It will build a config with "make defconfig"
+#
+# CONFIG_BISECT_CHECK (optional)
+# Set this to 1 if you want to confirm that the config ktest
+# generates (the bad config with the min config) is still bad.
+# It may be that the min config fixes what broke the bad config
+# and the test will not return a result.
+# Set it to "good" to test only the good config and set it
+# to "bad" to only test the bad config.
+#
+# CONFIG_BISECT_EXEC (optional)
+# The config bisect is a separate program that comes with ktest.pl.
+# By befault, it will look for:
+# `pwd`/config-bisect.pl # the location ktest.pl was executed from.
+# If it does not find it there, it will look for:
+# `dirname <ktest.pl>`/config-bisect.pl # The directory that holds ktest.pl
+# If it does not find it there, it will look for:
+# ${BUILD_DIR}/tools/testing/ktest/config-bisect.pl
+# Setting CONFIG_BISECT_EXEC will override where it looks.
+#
+# Example:
+# TEST_START
+# TEST_TYPE = config_bisect
+# CONFIG_BISECT_TYPE = build
+# CONFIG_BISECT = /home/test/config-bad
+# 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)
+#
+# MIN_CONFIG_TYPE can be either 'boot' or 'test'. With 'boot' it will
+# test if the created config can just boot the machine. If this is
+# set to 'test', then the TEST option must be defined and the created
+# config will not only boot the target, but also make sure that the
+# config lets the test succeed. This is useful to make sure the final
+# config that is generated allows network activity (ssh).
+# (optional)
+#
+# USE_OUTPUT_MIN_CONFIG set this to 1 if you do not want to be prompted
+# about using the OUTPUT_MIN_CONFIG as the MIN_CONFIG as the starting
+# point. Set it to 0 if you want to always just use the given MIN_CONFIG.
+# If it is not defined, it will prompt you to pick which config
+# to start with (MIN_CONFIG or OUTPUT_MIN_CONFIG).
+#
+# 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
+# MIN_CONFIG_TYPE = test
+# TEST = ssh ${USER}@${MACHINE} echo hi
+#
+#
+#
+#
+# For TEST_TYPE = make_warnings_file
+#
+# If you want the build to fail when a new warning is discovered
+# you set the WARNINGS_FILE to point to a file of known warnings.
+#
+# The test "make_warnings_file" will let you create a new warnings
+# file before you run other tests, like patchcheck.
+#
+# What this test does is to run just a build, you still need to
+# specify BUILD_TYPE to tell the test what type of config to use.
+# A BUILD_TYPE of nobuild will fail this test.
+#
+# The test will do the build and scan for all warnings. Any warning
+# it discovers will be saved in the WARNINGS_FILE (required) option.
+#
+# It is recommended (but not necessary) to make sure BUILD_NOCLEAN is
+# off, so that a full build is done (make mrproper is performed).
+# That way, all warnings will be captured.
+#
+# Example:
+#
+# TEST_TYPE = make_warnings_file
+# WARNINGS_FILE = ${OUTPUT_DIR}
+# BUILD_TYPE = useconfig:oldconfig
+# CHECKOUT = v3.8
+# BUILD_NOCLEAN = 0
+#