Initial start of ktest.pl

Originally named autotest.pl, but renamed to ktest.pl now because
the autotest name is used by other projects.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

tools/testing/ktest/ktest.pl

+#!/usr/bin/perl -w
+
+use strict;
+use IPC::Open2;
+use Fcntl qw(F_GETFL F_SETFL O_NONBLOCK);
+use FileHandle;
+
+$#ARGV >= 0 || die "usage: autotest.pl config-file\n";
+
+$| = 1;
+
+my %opt;
+
+#default opts
+$opt{"NUM_BUILDS"}		= 5;
+$opt{"DEFAULT_BUILD_TYPE"}	= "randconfig";
+$opt{"MAKE_CMD"}		= "make";
+$opt{"TIMEOUT"}			= 50;
+$opt{"TMP_DIR"}			= "/tmp/autotest";
+$opt{"SLEEP_TIME"}		= 60;	# sleep time between tests
+
+my $version;
+my $install_mods;
+my $grub_number;
+my $target;
+my $make;
+
+sub read_config {
+    my ($config) = @_;
+
+    open(IN, $config) || die "can't read file $config";
+
+    while (<IN>) {
+
+	# ignore blank lines and comments
+	next if (/^\s*$/ || /\s*\#/);
+
+	if (/^\s*(\S+)\s*=\s*(.*?)\s*$/) {
+	    my $lvalue = $1;
+	    my $rvalue = $2;
+
+	    $opt{$lvalue} = $rvalue;
+	}
+    }
+
+    close(IN);
+}
+
+sub doprint {
+    print @_;
+
+    if (defined($opt{"LOG_FILE"})) {
+	open(OUT, ">> $opt{LOG_FILE}") or die "Can't write to $opt{LOG_FILE}";
+	print OUT @_;
+	close(OUT);
+    }
+}
+
+sub run_command {
+    my ($command) = @_;
+    my $redirect = "";
+
+    if (defined($opt{"LOG_FILE"})) {
+	$redirect = " >> $opt{LOG_FILE} 2>&1";
+    }
+
+    doprint "$command ... ";
+    `$command $redirect`;
+
+    my $failed = $?;
+
+    if ($failed) {
+	doprint "FAILED!\n";
+    } else {
+	doprint "SUCCESS\n";
+    }
+
+    return $failed;
+}
+
+my $timeout = $opt{"TIMEOUT"};
+
+sub wait_for_input
+{
+    my ($fp, $time) = @_;
+    my $rin;
+    my $ready;
+    my $line;
+    my $ch;
+
+    if (!defined($time)) {
+	$time = $timeout;
+    }
+
+    $rin = '';
+    vec($rin, fileno($fp), 1) = 1;
+    $ready = select($rin, undef, undef, $time);
+
+    $line = "";
+
+    # try to read one char at a time
+    while (sysread $fp, $ch, 1) {
+	$line .= $ch;
+	last if ($ch eq "\n");
+    }
+
+    if (!length($line)) {
+	return undef;
+    }
+
+    return $line;
+}
+
+sub reboot {
+    run_command "ssh $target '(echo \"savedefault --default=$grub_number --once\" | grub --batch; reboot)'";
+}
+
+sub monitor {
+    my $flags;
+    my $booted = 0;
+    my $bug = 0;
+    my $pid;
+    my $doopen2 = 0;
+
+    if ($doopen2) {
+	$pid = open2(\*IN, \*OUT, $opt{CONSOLE});
+	if ($pid < 0) {
+	    die "Failed to connect to the console";
+	}
+    } else {
+	$pid = open(IN, "$opt{CONSOLE} |");
+    }
+
+    $flags = fcntl(IN, F_GETFL, 0) or
+	die "Can't get flags for the socket: $!\n";
+
+    $flags = fcntl(IN, F_SETFL, $flags | O_NONBLOCK) or
+	die "Can't set flags for the socket: $!\n";
+
+    my $line;
+    my $full_line = "";
+
+    doprint "Wait for monitor to settle down.\n";
+    # read the monitor and wait for the system to calm down
+    do {
+	$line = wait_for_input(\*IN, 5);
+    } while (defined($line));
+
+    reboot;
+
+    for (;;) {
+
+	$line = wait_for_input(\*IN);
+
+	last if (!defined($line));
+
+	doprint $line;
+
+	# we are not guaranteed to get a full line
+	$full_line .= $line;
+
+	if ($full_line =~ /login:/) {
+	    $booted = 1;
+	}
+
+	if ($full_line =~ /call trace:/i) {
+	    $bug = 1;
+	}
+
+	if ($line =~ /\n/) {
+	    $full_line = "";
+	}
+    }
+
+    doprint "kill child process $pid\n";
+    kill 2, $pid;
+
+    print "closing!\n";
+    close(IN);
+
+    if (!$booted) {
+	die "failed - never got a boot prompt.\n";
+    }
+
+    if ($bug) {
+	die "failed - got a bug report\n";
+    }
+}
+
+sub install {
+
+    if (run_command "scp $opt{OUTPUT_DIR}/$opt{BUILD_TARGET} $target:$opt{TARGET_IMAGE}") {
+	die "failed to copy image";
+    }
+
+    if ($install_mods) {
+	my $modlib = "/lib/modules/$version";
+
+	if (run_command "ssh $target rm -rf $modlib") {
+	    die "failed to remove old mods: $modlib";
+	}
+
+	if (run_command "scp -r $opt{TMP_DIR}/lib $target:/lib/modules/$version") {
+	    die "failed to copy modules";
+	}
+    }
+
+}
+
+sub build {
+    my ($type) = @_;
+
+    unlink "$opt{OUTPUT_DIR}/.config";
+
+    run_command "$make mrproper";
+
+    # add something to distinguish this build
+    open(OUT, "> $opt{OUTPUT_DIR}/localversion") or die("Can't make localversion file");
+    print OUT "$opt{LOCALVERSION}\n";
+    close(OUT);
+
+    if (run_command "$make $opt{$type}") {
+	die "failed make config";
+    }
+
+    if (defined($opt{"MIN_CONFIG"})) {
+	run_command "cat $opt{MIN_CONFIG} >> $opt{OUTPUT_DIR}/.config";
+	run_command "yes '' | $make oldconfig";
+    }
+
+    if (run_command "$make $opt{BUILD_OPTIONS}") {
+	die "failed build";
+    }
+}
+
+read_config $ARGV[0];
+
+# mandatory configs
+die "MACHINE not defined\n"		if (!defined($opt{"MACHINE"}));
+die "SSH_USER not defined\n"		if (!defined($opt{"SSH_USER"}));
+die "BUILD_DIR not defined\n"		if (!defined($opt{"BUILD_DIR"}));
+die "OUTPUT_DIR not defined\n"		if (!defined($opt{"OUTPUT_DIR"}));
+die "BUILD_TARGET not defined\n"	if (!defined($opt{"BUILD_TARGET"}));
+die "POWER_CYCLE not defined\n"		if (!defined($opt{"POWER_CYCLE"}));
+die "CONSOLE not defined\n"		if (!defined($opt{"CONSOLE"}));
+die "LOCALVERSION not defined\n"	if (!defined($opt{"LOCALVERSION"}));
+die "GRUB_MENU not defined\n"		if (!defined($opt{"GRUB_MENU"}));
+
+chdir $opt{"BUILD_DIR"} || die "can't change directory to $opt{BUILD_DIR}";
+
+$target = "$opt{SSH_USER}\@$opt{MACHINE}";
+
+doprint "\n\nSTARTING AUTOMATED TESTS\n";
+
+doprint "Find grub menu ... ";
+$grub_number = -1;
+open(IN, "ssh $target cat /boot/grub/menu.lst |")
+    or die "unable to get menu.lst";
+while (<IN>) {
+    if (/^\s*title\s+$opt{GRUB_MENU}\s*$/) {
+	$grub_number++;
+	last;
+    } elsif (/^\s*title\s/) {
+	$grub_number++;
+    }
+}
+close(IN);
+die "Could not find '$opt{GRUB_MENU}' in /boot/grub/menu on $opt{MACHINE}"
+    if ($grub_number < 0);
+doprint "$grub_number\n";
+
+$make = "$opt{MAKE_CMD} O=$opt{OUTPUT_DIR}";
+
+# First we need to do is the builds
+for (my $i = 1; $i <= $opt{"NUM_BUILDS"}; $i++) {
+    my $type = "BUILD_TYPE[$i]";
+
+    if (!defined($opt{$type})) {
+	$opt{$type} = $opt{"DEFAULT_BUILD_TYPE"};
+    }
+
+    doprint "\n\n";
+    doprint "RUNNING TEST $i of $opt{NUM_BUILDS} with option $opt{$type}\n\n";
+
+    if ($opt{$type} ne "nobuild") {
+	build $type;
+    }
+
+    # get the release name
+    doprint "$make kernelrelease ... ";
+    $version = `$make kernelrelease | tail -1`;
+    chomp($version);
+    doprint "$version\n";
+
+    # should we process modules?
+    $install_mods = 0;
+    open(IN, "$opt{OUTPUT_DIR}/.config") or die("Can't read config file");
+    while (<IN>) {
+	if (/CONFIG_MODULES(=y)?/) {
+	    $install_mods = 1 if (defined($1));
+	    last;
+	}
+    }
+    close(IN);
+
+    if ($install_mods) {
+	if (run_command "$make INSTALL_MOD_PATH=$opt{TMP_DIR} modules_install") {
+	    die "Failed to install modules";
+	}
+    } else {
+	doprint "No modules needed\n";
+    }
+
+    install;
+
+    monitor;
+
+    doprint "\n\n*******************************************\n";
+    doprint     "*******************************************\n";
+    doprint     "**            SUCCESS!!!!                **\n";
+    doprint     "*******************************************\n";
+    doprint     "*******************************************\n";
+
+    # try to reboot normally
+
+    if (run_command "ssh $target reboot") {
+	# nope? power cycle it.
+	run_command "$opt{POWER_CYCLE}";
+    }
+
+    sleep "$opt{SLEEP_TIME}";
+}
+
+exit 0;