X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/e04d2797c547ddc1ad89f00b8673b026146dab07..d0f1eb07ec97c880c69c7addb78b3eae95248b34:/scripts/metadata.pl?ds=inline diff --git a/scripts/metadata.pl b/scripts/metadata.pl index 695abf7b3..39304dfbe 100755 --- a/scripts/metadata.pl +++ b/scripts/metadata.pl @@ -1,23 +1,10 @@ -#!/usr/bin/perl +#!/usr/bin/env perl +use FindBin; +use lib "$FindBin::Bin"; use strict; -my %preconfig; -my %package; -my %srcpackage; -my %category; -my %subdir; -my %board; - -sub get_multiline { - my $prefix = shift; - my $str; - while (<>) { - last if /^@@/; - s/^\s*//g; - $str .= (($_ and $prefix) ? $prefix . $_ : $_); - } +use metadata; - return $str; -} +my %board; sub confstr($) { my $conf = shift; @@ -26,27 +13,46 @@ sub confstr($) { } sub parse_target_metadata() { - my ($target, @target, $profile); - while (<>) { + my $file = shift @ARGV; + my ($target, @target, $profile); + my %target; + + open FILE, "<$file" or do { + warn "Can't open file '$file': $!\n"; + return; + }; + while () { chomp; /^Target:\s*(.+)\s*$/ and do { + my $name = $1; $target = { - id => $1, - conf => confstr($1), - profiles => [] + id => $name, + board => $name, + boardconf => confstr($name), + conf => confstr($name), + profiles => [], + features => [], + depends => [], + subtargets => [] }; push @target, $target; - }; - /^Target-Board:\s*(.+)\s*$/ and do { - $target->{board} = $1; - $target->{boardconf} = confstr($1); + $target{$name} = $target; + if ($name =~ /([^\/]+)\/([^\/]+)/) { + push @{$target{$1}->{subtargets}}, $2; + $target->{board} = $1; + $target->{boardconf} = confstr($1); + $target->{subtarget} = 1; + $target->{parent} = $target{$1}; + } }; /^Target-Kernel:\s*(\d+\.\d+)\s*$/ and $target->{kernel} = $1; /^Target-Name:\s*(.+)\s*$/ and $target->{name} = $1; /^Target-Path:\s*(.+)\s*$/ and $target->{path} = $1; /^Target-Arch:\s*(.+)\s*$/ and $target->{arch} = $1; /^Target-Features:\s*(.+)\s*$/ and $target->{features} = [ split(/\s+/, $1) ]; - /^Target-Description:/ and $target->{desc} = get_multiline(); + /^Target-Depends:\s*(.+)\s*$/ and $target->{depends} = [ split(/\s+/, $1) ]; + /^Target-Description:/ and $target->{desc} = get_multiline(*FILE); + /^Target-Optimization:\s*(.+)\s*$/ and $target->{cflags} = $1; /^Linux-Version:\s*(.+)\s*$/ and $target->{version} = $1; /^Linux-Release:\s*(.+)\s*$/ and $target->{release} = $1; /^Linux-Kernel-Arch:\s*(.+)\s*$/ and $target->{karch} = $1; @@ -61,11 +67,13 @@ sub parse_target_metadata() { }; /^Target-Profile-Name:\s*(.+)\s*$/ and $profile->{name} = $1; /^Target-Profile-Packages:\s*(.*)\s*$/ and $profile->{packages} = [ split(/\s+/, $1) ]; - /^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(); - /^Target-Profile-Config:/ and $profile->{config} = get_multiline("\t"); + /^Target-Profile-Description:\s*(.*)\s*/ and $profile->{desc} = get_multiline(*FILE); + /^Target-Profile-Config:/ and $profile->{config} = get_multiline(*FILE, "\t"); /^Target-Profile-Kconfig:/ and $profile->{kconfig} = 1; } + close FILE; foreach my $target (@target) { + next if @{$target->{subtargets}} > 0; @{$target->{profiles}} > 0 or $target->{profiles} = [ { id => 'Default', @@ -77,74 +85,6 @@ sub parse_target_metadata() { return @target; } -sub parse_package_metadata() { - my $pkg; - my $makefile; - my $preconfig; - my $subdir; - my $src; - while (<>) { - chomp; - /^Source-Makefile: \s*((.+\/)([^\/]+)\/Makefile)\s*$/ and do { - $makefile = $1; - $subdir = $2; - $src = $3; - $subdir =~ s/^package\///; - $subdir{$src} = $subdir; - $srcpackage{$src} = []; - undef $pkg; - }; - /^Package:\s*(.+?)\s*$/ and do { - $pkg = {}; - $pkg->{src} = $src; - $pkg->{makefile} = $makefile; - $pkg->{name} = $1; - $pkg->{default} = "m if ALL"; - $pkg->{depends} = []; - $pkg->{builddepends} = []; - $pkg->{subdir} = $subdir; - $package{$1} = $pkg; - push @{$srcpackage{$src}}, $pkg; - }; - /^Version: \s*(.+)\s*$/ and $pkg->{version} = $1; - /^Title: \s*(.+)\s*$/ and $pkg->{title} = $1; - /^Menu: \s*(.+)\s*$/ and $pkg->{menu} = $1; - /^Submenu: \s*(.+)\s*$/ and $pkg->{submenu} = $1; - /^Submenu-Depends: \s*(.+)\s*$/ and $pkg->{submenudep} = $1; - /^Default: \s*(.+)\s*$/ and $pkg->{default} = $1; - /^Provides: \s*(.+)\s*$/ and do { - my @vpkg = split /\s+/, $1; - foreach my $vpkg (@vpkg) { - $package{$vpkg} or $package{$vpkg} = { vdepends => [] }; - push @{$package{$vpkg}->{vdepends}}, $pkg->{name}; - } - }; - /^Depends: \s*(.+)\s*$/ and $pkg->{depends} = [ split /\s+/, $1 ]; - /^Build-Depends: \s*(.+)\s*$/ and $pkg->{builddepends} = [ split /\s+/, $1 ]; - /^Category: \s*(.+)\s*$/ and do { - $pkg->{category} = $1; - defined $category{$1} or $category{$1} = {}; - defined $category{$1}->{$src} or $category{$1}->{$src} = []; - push @{$category{$1}->{$src}}, $pkg; - }; - /^Description: \s*(.*)\s*$/ and $pkg->{description} = "\t\t $1\n". get_multiline("\t\t "); - /^Config: \s*(.*)\s*$/ and $pkg->{config} = "$1\n".get_multiline(); - /^Prereq-Check:/ and $pkg->{prereq} = 1; - /^Preconfig:\s*(.+)\s*$/ and do { - my $pkgname = $pkg->{name}; - $preconfig{$pkgname} or $preconfig{$pkgname} = []; - $preconfig = { - id => $1 - }; - push @{$preconfig{$pkgname}}, $preconfig; - }; - /^Preconfig-Type:\s*(.*?)\s*$/ and $preconfig->{type} = $1; - /^Preconfig-Label:\s*(.*?)\s*$/ and $preconfig->{label} = $1; - /^Preconfig-Default:\s*(.*?)\s*$/ and $preconfig->{default} = $1; - } - return %category; -} - sub gen_kconfig_overrides() { my %config; my %kconfig; @@ -212,26 +152,110 @@ sub target_config_features(@) { while ($_ = shift @_) { /broken/ and $ret .= "\tdepends BROKEN\n"; + /display/ and $ret .= "\tselect DISPLAY_SUPPORT\n"; + /gpio/ and $ret .= "\tselect GPIO_SUPPORT\n"; /pci/ and $ret .= "\tselect PCI_SUPPORT\n"; + /pcie/ and $ret .= "\tselect PCIE_SUPPORT\n"; /usb/ and $ret .= "\tselect USB_SUPPORT\n"; /pcmcia/ and $ret .= "\tselect PCMCIA_SUPPORT\n"; /squashfs/ and $ret .= "\tselect USES_SQUASHFS\n"; /jffs2/ and $ret .= "\tselect USES_JFFS2\n"; /ext2/ and $ret .= "\tselect USES_EXT2\n"; /tgz/ and $ret .= "\tselect USES_TGZ\n"; + /cpiogz/ and $ret .= "\tselect USES_CPIOGZ\n"; + /fpu/ and $ret .= "\tselect HAS_FPU\n"; + /ramdisk/ and $ret .= "\tselect USES_INITRAMFS\n"; + /powerpc64/ and $ret .= "\tselect powerpc64\n"; } return $ret; } +sub target_name($) { + my $target = shift; + my $parent = $target->{parent}; + if ($parent) { + return $target->{parent}->{name}." - ".$target->{name}; + } else { + return $target->{name}; + } +} + +sub kver($) { + my $v = shift; + $v =~ tr/\./_/; + $v =~ /(\d+_\d+_\d+)(_\d+)?/ and $v = $1; + return $v; +} + +sub print_target($) { + my $target = shift; + my $features = target_config_features(@{$target->{features}}); + my $help = $target->{desc}; + my $kernel = $target->{kernel}; + my $confstr; + $kernel =~ tr/./_/; + + chomp $features; + $features .= "\n"; + if ($help =~ /\w+/) { + $help =~ s/^\s*/\t /mg; + $help = "\thelp\n$help"; + } else { + undef $help; + } + + my $v = kver($target->{version}); + if (@{$target->{subtargets}} == 0) { + $confstr = <{conf} + bool "$target->{name}" + select LINUX_$kernel + select LINUX_$v +EOF + } + else { + $confstr = <{conf} + bool "$target->{name}" +EOF + } + if ($target->{subtarget}) { + $confstr .= "\tdepends TARGET_$target->{boardconf}\n"; + } + if (@{$target->{subtargets}} > 0) { + $confstr .= "\tselect HAS_SUBTARGETS\n"; + } else { + $confstr .= "\tselect $target->{arch}\n"; + foreach my $dep (@{$target->{depends}}) { + my $mode = "depends"; + my $flags; + my $name; + + $dep =~ /^([@\+\-]+)(.+)$/; + $flags = $1; + $name = $2; + + next if $name =~ /:/; + $flags =~ /-/ and $mode = "deselect"; + $flags =~ /\+/ and $mode = "select"; + $flags =~ /@/ and $confstr .= "\t$mode $name\n"; + } + $confstr .= $features; + } + + $confstr .= "$help\n\n"; + print $confstr; +} sub gen_target_config() { my @target = parse_target_metadata(); + my %defaults; - @target = sort { - $a->{name} cmp $b->{name} + my @target_sort = sort { + target_name($a) cmp target_name($b); } @target; - - + + print <{features}}); - my $help = $target->{desc}; - my $kernel = $target->{kernel}; - $kernel =~ tr/./_/; - - chomp $features; - $features .= "\n"; - if ($help =~ /\w+/) { - $help =~ s/^\s*/\t /mg; - $help = "\thelp\n$help"; - } else { - undef $help; - } - - print <{conf} - bool "$target->{name}" - select $target->{arch} - select LINUX_$kernel -EOF - if ($target->{id} ne $target->{board}) { - print "\tselect TARGET_".$target->{boardconf}."\n"; - } - print "$features$help\n\n" + foreach my $target (@target_sort) { + next if $target->{subtarget}; + print_target($target); } print <{board}."\" if TARGET_".$target->{conf}."\n"; + next unless $target->{subtarget}; + print_target($target); } - # add hidden target config options - foreach my $target (@target) { - next if $board{$target->{board}}; - if ($target->{id} ne $target->{board}) { - print "\nconfig TARGET_".$target->{boardconf}."\n\tbool\n"; - $board{$target->{board}} = 1; - } - } - print <{profiles}; - + foreach my $profile (@$profiles) { print <{conf}_$profile->{id} @@ -306,28 +303,86 @@ EOF my @pkglist = merge_package_lists($target->{packages}, $profile->{packages}); foreach my $pkg (@pkglist) { print "\tselect DEFAULT_$pkg\n"; + $defaults{$pkg} = 1; } - print "\n"; + my $help = $profile->{desc}; + if ($help =~ /\w+/) { + $help =~ s/^\s*/\t /mg; + $help = "\thelp\n$help"; + } else { + undef $help; + } + print "$help\n"; } } - print "endchoice\n"; -} + print <{subtarget} or print "\t\tdefault \"".$target->{board}."\" if TARGET_".$target->{conf}."\n"; + } + print <{subtargets}} > 0; + print "\tdefault \"".$target->{cflags}."\" if TARGET_".$target->{conf}."\n"; + } + print "\tdefault \"-Os -pipe -funit-at-a-time\"\n"; + + my %kver; + foreach my $target (@target) { + my $v = kver($target->{version}); + next if $kver{$v}; + $kver{$v} = 1; + print <{vdepends} or $pkg->{depends}); return 0 unless defined $deps; foreach my $dep (@{$deps}) { + next if $dep_check{$dep}; + $dep_check{$dep} = 1; return 1 if $dep eq $name; - return 1 if ($package{$dep} and (find_package_dep($package{$dep},$name) == 1)); + return 1 if ($package{$dep} and (__find_package_dep($package{$dep},$name) == 1)); } return 0; } +# wrapper to avoid infinite recursion +sub find_package_dep($$) { + my $pkg = shift; + my $name = shift; + + %dep_check = (); + return __find_package_dep($pkg, $name); +} + sub package_depends($$) { my $a = shift; my $b = shift; @@ -344,10 +399,16 @@ sub package_depends($$) { return $ret; } -sub mconf_depends($$) { +sub mconf_depends { + my $pkgname = shift; my $depends = shift; my $only_dep = shift; my $res; + my $dep = shift; + my $seen = shift; + my $parent_condition = shift; + $dep or $dep = {}; + $seen or $seen = {}; $depends or return; my @depends = @$depends; @@ -356,22 +417,47 @@ sub mconf_depends($$) { $depend =~ s/^([@\+]+)//; my $flags = $1; my $vdep; - + my $condition = $parent_condition; + + if ($depend =~ /^(.+):(.+)$/) { + if ($1 ne "PACKAGE_$pkgname") { + if ($condition) { + $condition = "$condition && $1"; + } else { + $condition = $1; + } + } + $depend = $2; + } + next if $seen->{$depend}; + next if $package{$depend} and $package{$depend}->{buildonly}; + $seen->{$depend} = 1; if ($vdep = $package{$depend}->{vdepends}) { $depend = join("||", map { "PACKAGE_".$_ } @$vdep); } else { $flags =~ /\+/ and do { - next if $only_dep; - $m = "select"; - # Menuconfig will not treat 'select FOO' as a real dependency # thus if FOO depends on other config options, these dependencies # will not be checked. To fix this, we simply emit all of FOO's # depends here as well. - $package{$depend} and $res .= mconf_depends($package{$depend}->{depends}, 1); + $package{$depend} and mconf_depends($pkgname, $package{$depend}->{depends}, 1, $dep, $seen, $condition); + + $m = "select"; + next if $only_dep; }; $flags =~ /@/ or $depend = "PACKAGE_$depend"; + if ($condition) { + if ($m =~ /select/) { + $depend = "$depend if $condition"; + } else { + $depend = "!($condition) || $depend"; + } + } } + $dep->{$depend} =~ /select/ or $dep->{$depend} = $m; + } + foreach my $depend (keys %$dep) { + my $m = $dep->{$depend}; $res .= "\t\t$m $depend\n"; } return $res; @@ -381,14 +467,15 @@ sub print_package_config_category($) { my $cat = shift; my %menus; my %menu_dep; - + return unless $category{$cat}; - + print "menu \"$cat\"\n\n"; my %spkg = %{$category{$cat}}; - + foreach my $spkg (sort {uc($a) cmp uc($b)} keys %spkg) { foreach my $pkg (@{$spkg{$spkg}}) { + next if $pkg->{buildonly}; my $menu = $pkg->{submenu}; if ($menu) { $menu_dep{$menu} or $menu_dep{$menu} = $pkg->{submenudep}; @@ -397,8 +484,6 @@ sub print_package_config_category($) { } $menus{$menu} or $menus{$menu} = []; push @{$menus{$menu}}, $pkg; - print "\tconfig DEFAULT_".$pkg->{name}."\n"; - print "\t\tbool\n\n"; } } my @menus = sort { @@ -425,12 +510,12 @@ sub print_package_config_category($) { print "\t"; $pkg->{menu} and print "menu"; print "config PACKAGE_".$pkg->{name}."\n"; - print "\t\ttristate \"$title\"\n"; + print "\t\t".($pkg->{tristate} ? 'tristate' : 'bool')." \"$title\"\n"; print "\t\tdefault y if DEFAULT_".$pkg->{name}."\n"; foreach my $default (split /\s*,\s*/, $pkg->{default}) { print "\t\tdefault $default\n"; } - print mconf_depends($pkg->{depends}, 0); + print mconf_depends($pkg->{name}, $pkg->{depends}, 0); print "\t\thelp\n"; print $pkg->{description}; print "\n"; @@ -443,22 +528,22 @@ sub print_package_config_category($) { } } print "endmenu\n\n"; - + undef $category{$cat}; } sub gen_package_config() { - parse_package_metadata(); - print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n"; + parse_package_metadata($ARGV[0]) or exit 1; + print "menuconfig UCI_PRECONFIG\n\tbool \"Image configuration\"\n" if %preconfig; foreach my $preconfig (keys %preconfig) { - foreach my $cfg (@{$preconfig{$preconfig}}) { - my $conf = $cfg->{id}; + foreach my $cfg (keys %{$preconfig{$preconfig}}) { + my $conf = $preconfig{$preconfig}->{$cfg}->{id}; $conf =~ tr/\.-/__/; print <{label}" if UCI_PRECONFIG + string "$preconfig{$preconfig}->{$cfg}->{label}" if UCI_PRECONFIG depends PACKAGE_$preconfig - default "$cfg->{default}" + default "$preconfig{$preconfig}->{$cfg}->{default}" EOF } @@ -469,17 +554,34 @@ EOF } } +sub get_conditional_dep($$) { + my $condition = shift; + my $depstr = shift; + if ($condition) { + if ($condition =~ /^!(.+)/) { + return "\$(if \$(CONFIG_$1),,$depstr)"; + } else { + return "\$(if \$(CONFIG_$condition),$depstr)"; + } + } else { + return $depstr; + } +} + sub gen_package_mk() { my %conf; my %dep; + my %done; my $line; - parse_package_metadata(); + parse_package_metadata($ARGV[0]) or exit 1; foreach my $name (sort {uc($a) cmp uc($b)} keys %package) { my $config; my $pkg = $package{$name}; - + my @srcdeps; + next if defined $pkg->{vdepends}; + if ($ENV{SDK}) { $conf{$pkg->{src}} or do { $config = 'm'; @@ -489,45 +591,135 @@ sub gen_package_mk() { $config = "\$(CONFIG_PACKAGE_$name)" } if ($config) { + $pkg->{buildonly} and $config = ""; print "package-$config += $pkg->{subdir}$pkg->{src}\n"; $pkg->{prereq} and print "prereq-$config += $pkg->{subdir}$pkg->{src}\n"; } - + + next if $done{$pkg->{src}}; + $done{$pkg->{src}} = 1; + + if (@{$pkg->{buildtypes}} > 0) { + print "buildtypes-$pkg->{subdir}$pkg->{src} = ".join(' ', @{$pkg->{buildtypes}})."\n"; + } + + foreach my $spkg (@{$srcpackage{$pkg->{src}}}) { + foreach my $dep (@{$spkg->{depends}}, @{$spkg->{builddepends}}) { + $dep =~ /@/ or do { + $dep =~ s/\+//g; + push @srcdeps, $dep; + }; + } + } + foreach my $type (@{$pkg->{buildtypes}}) { + my @extra_deps; + my %deplines; + + next unless $pkg->{"builddepends/$type"}; + foreach my $dep (@{$pkg->{"builddepends/$type"}}) { + my $suffix = ""; + my $condition; + + if ($dep =~ /^(.+):(.+)/) { + $condition = $1; + $dep = $2; + } + if ($dep =~ /^(.+)(\/.+)/) { + $dep = $1; + $suffix = $2; + } + my $pkg_dep = $package{$dep}; + next unless $pkg_dep; + + my $idx = ""; + if (defined $pkg_dep->{src}) { + $idx = $pkg_dep->{subdir}.$pkg_dep->{src}; + } elsif (defined($srcpackage{$dep})) { + $idx = $subdir{$dep}.$dep; + } + my $depstr = "\$(curdir)/$idx$suffix/compile"; + my $depline = get_conditional_dep($condition, $depstr); + if ($depline) { + $deplines{$dep} = $depline; + } + } + my $depline = join(" ", values %deplines); + if ($depline) { + $line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/$type/compile += $depline\n"; + } + } + my $hasdeps = 0; - my $depline = ""; - foreach my $dep (@{$pkg->{depends}}, @{$pkg->{builddepends}}) { - next if $dep =~ /@/; - $dep =~ s/\+//; + my %deplines; + foreach my $deps (@srcdeps) { my $idx; - my $pkg_dep = $package{$dep}; - next if defined $pkg_dep->{vdepends}; + my $condition; + my $prefix = ""; + my $suffix = ""; - if (defined $pkg_dep->{src}) { - ($pkg->{src} ne $pkg_dep->{src}) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src}; - } elsif (defined($srcpackage{$dep})) { - $idx = $subdir{$dep}.$dep; + if ($deps =~ /^(.+):(.+)/) { + $condition = $1; + $deps = $2; + } + if ($deps =~ /^(.+)(\/.+)/) { + $deps = $1; + $suffix = $2; + } + + my $pkg_dep = $package{$deps}; + my @deps; + + if ($pkg_dep->{vdepends}) { + @deps = @{$pkg_dep->{vdepends}}; + } else { + @deps = ($deps); } - undef $idx if $idx =~ /^(kernel)|(base-files)$/; - if ($idx) { - next if $dep{$pkg->{src}."->".$idx}; - $depline .= " \$(curdir)/$idx/compile"; - $dep{$pkg->{src}."->".$idx} = 1; + + foreach my $dep (@deps) { + $pkg_dep = $package{$deps}; + if (defined $pkg_dep->{src}) { + ($pkg->{src} ne $pkg_dep->{src}.$suffix) and $idx = $pkg_dep->{subdir}.$pkg_dep->{src}; + } elsif (defined($srcpackage{$dep})) { + $idx = $subdir{$dep}.$dep; + } + $idx .= $suffix; + undef $idx if $idx =~ /^(kernel)|(base-files)$/; + if ($idx) { + my $depline; + next if $pkg->{src} eq $pkg_dep->{src}.$suffix; + next if $dep{$pkg->{src}."->".$idx}; + next if $dep{$pkg->{src}."->($dep)".$idx} and $pkg_dep->{vdepends}; + my $depstr; + + if ($pkg_dep->{vdepends}) { + $depstr = "\$(if \$(CONFIG_PACKAGE_$dep),\$(curdir)/$idx/compile)"; + $dep{$pkg->{src}."->($dep)".$idx} = 1; + } else { + $depstr = "\$(curdir)/$idx/compile"; + $dep{$pkg->{src}."->".$idx} = 1; + } + $depline = get_conditional_dep($condition, $depstr); + if ($depline) { + $deplines{$idx.$dep} = $depline; + } + } } } + my $depline = join(" ", values %deplines); if ($depline) { $line .= "\$(curdir)/".$pkg->{subdir}."$pkg->{src}/compile += $depline\n"; } } - + if ($line ne "") { print "\n$line"; } foreach my $preconfig (keys %preconfig) { my $cmds; - foreach my $cfg (@{$preconfig{$preconfig}}) { - my $conf = $cfg->{id}; + foreach my $cfg (keys %{$preconfig{$preconfig}}) { + my $conf = $preconfig{$preconfig}->{$cfg}->{id}; $conf =~ tr/\.-/__/; - $cmds .= "\techo \"uci set '$cfg->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n"; + $cmds .= "\techo \"uci set '$preconfig{$preconfig}->{$cfg}->{id}=\$(subst \",,\$(CONFIG_UCI_PRECONFIG_$conf))'\"; \\\n"; } next unless $cmds; print <{name} && $pkg->{source}) { + print "$pkg->{name}: "; + print "$pkg->{source}\n"; + } + } +} sub parse_command() { my $cmd = shift @ARGV; @@ -552,13 +754,15 @@ sub parse_command() { /^package_mk$/ and return gen_package_mk(); /^package_config$/ and return gen_package_config(); /^kconfig/ and return gen_kconfig_overrides(); + /^package_source$/ and return gen_package_source(); } print <