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#!/usr/bin/perl # # dpkg-architecture # # Copyright © 1999-2001 Marcus Brinkmann <brinkmd@debian.org> # Copyright © 2004-2005 Scott James Remnant <scott@netsplit.com>, # Copyright © 2006-2014 Guillem Jover <guillem@debian.org> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. use strict; use warnings; use Dpkg (); use Dpkg::Gettext; use Dpkg::Getopt; use Dpkg::ErrorHandling; use Dpkg::Arch qw(:getters :mappers debarch_eq debarch_is); textdomain('dpkg-dev'); sub version { printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION; printf g_(' This is free software; see the GNU General Public License version 2 or later for copying conditions. There is NO warranty. '); } sub usage { printf g_( 'Usage: %s [<option>...] [<command>]') . "\n\n" . g_( 'Commands: -l, --list list variables (default). -L, --list-known list valid architectures (matching some criteria). -e, --equal <arch> compare with host Debian architecture. -i, --is <arch-wildcard> match against host Debian architecture. -q, --query <variable> prints only the value of <variable>. -s, --print-set print command to set environment variables. -u, --print-unset print command to unset environment variables. -c, --command <command> set environment and run the command in it. -?, --help show this help message. --version show the version.') . "\n\n" . g_( 'Options: -a, --host-arch <arch> set host Debian architecture. -t, --host-type <type> set host GNU system type. -A, --target-arch <arch> set target Debian architecture. -T, --target-type <type> set target GNU system type. -W, --match-wildcard <arch-wildcard> restrict architecture list matching <arch-wildcard>. -B, --match-bits <arch-bits> restrict architecture list matching <arch-bits>. -E, --match-endian <arch-endian> restrict architecture list matching <arch-endian>. --print-format <format> use <format> for --print-set and --print-unset, allowed values: shell (default), make. -f, --force force flag (override variables set in environment).') . "\n", $Dpkg::PROGNAME; } sub check_arch_coherency { my ($arch, $gnu_type) = @_; if ($arch ne '' && $gnu_type eq '') { $gnu_type = debarch_to_gnutriplet($arch); error(g_('unknown Debian architecture %s, you must specify ' . 'GNU system type, too'), $arch) unless defined $gnu_type; } if ($gnu_type ne '' && $arch eq '') { $arch = gnutriplet_to_debarch($gnu_type); error(g_('unknown GNU system type %s, you must specify ' . 'Debian architecture, too'), $gnu_type) unless defined $arch; } if ($gnu_type ne '' && $arch ne '') { my $dfl_gnu_type = debarch_to_gnutriplet($arch); error(g_('unknown default GNU system type for Debian architecture %s'), $arch) unless defined $dfl_gnu_type; warning(g_('default GNU system type %s for Debian arch %s does not ' . 'match specified GNU system type %s'), $dfl_gnu_type, $arch, $gnu_type) if $dfl_gnu_type ne $gnu_type; } return ($arch, $gnu_type); } use constant { INFO_BUILD_ARCH_NAME => 0b00001, INFO_BUILD_ARCH_TUPLE => 0b00010, INFO_BUILD_ARCH_ATTR => 0b00100, INFO_BUILD_MULTIARCH => 0b01000, INFO_BUILD_GNU_TUPLE => 0b10000, INFO_HOST_ARCH_NAME => 0b0000100000, INFO_HOST_ARCH_TUPLE => 0b0001000000, INFO_HOST_ARCH_ATTR => 0b0010000000, INFO_HOST_MULTIARCH => 0b0100000000, INFO_HOST_GNU_TUPLE => 0b1000000000, INFO_TARGET_ARCH_NAME => 0b000010000000000, INFO_TARGET_ARCH_TUPLE => 0b000100000000000, INFO_TARGET_ARCH_ATTR => 0b001000000000000, INFO_TARGET_MULTIARCH => 0b010000000000000, INFO_TARGET_GNU_TUPLE => 0b100000000000000, }; my %arch_vars = ( DEB_BUILD_ARCH => INFO_BUILD_ARCH_NAME, DEB_BUILD_ARCH_ABI => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_TUPLE, DEB_BUILD_ARCH_LIBC => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_TUPLE, DEB_BUILD_ARCH_OS => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_TUPLE, DEB_BUILD_ARCH_CPU => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_TUPLE, DEB_BUILD_ARCH_BITS => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_ATTR, DEB_BUILD_ARCH_ENDIAN => INFO_BUILD_ARCH_NAME | INFO_BUILD_ARCH_ATTR, DEB_BUILD_MULTIARCH => INFO_BUILD_ARCH_NAME | INFO_BUILD_MULTIARCH, DEB_BUILD_GNU_CPU => INFO_BUILD_ARCH_NAME | INFO_BUILD_GNU_TUPLE, DEB_BUILD_GNU_SYSTEM => INFO_BUILD_ARCH_NAME | INFO_BUILD_GNU_TUPLE, DEB_BUILD_GNU_TYPE => INFO_BUILD_ARCH_NAME | INFO_BUILD_GNU_TUPLE, DEB_HOST_ARCH => INFO_HOST_ARCH_NAME, DEB_HOST_ARCH_ABI => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_TUPLE, DEB_HOST_ARCH_LIBC => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_TUPLE, DEB_HOST_ARCH_OS => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_TUPLE, DEB_HOST_ARCH_CPU => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_TUPLE, DEB_HOST_ARCH_BITS => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_ATTR, DEB_HOST_ARCH_ENDIAN => INFO_HOST_ARCH_NAME | INFO_HOST_ARCH_ATTR, DEB_HOST_MULTIARCH => INFO_HOST_ARCH_NAME | INFO_HOST_MULTIARCH, DEB_HOST_GNU_CPU => INFO_HOST_ARCH_NAME | INFO_HOST_GNU_TUPLE, DEB_HOST_GNU_SYSTEM => INFO_HOST_ARCH_NAME | INFO_HOST_GNU_TUPLE, DEB_HOST_GNU_TYPE => INFO_HOST_ARCH_NAME | INFO_HOST_GNU_TUPLE, DEB_TARGET_ARCH => INFO_TARGET_ARCH_NAME, DEB_TARGET_ARCH_ABI => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_TUPLE, DEB_TARGET_ARCH_LIBC => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_TUPLE, DEB_TARGET_ARCH_OS => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_TUPLE, DEB_TARGET_ARCH_CPU => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_TUPLE, DEB_TARGET_ARCH_BITS => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_ATTR, DEB_TARGET_ARCH_ENDIAN => INFO_TARGET_ARCH_NAME | INFO_TARGET_ARCH_ATTR, DEB_TARGET_MULTIARCH => INFO_TARGET_ARCH_NAME | INFO_TARGET_MULTIARCH, DEB_TARGET_GNU_CPU => INFO_TARGET_ARCH_NAME | INFO_TARGET_GNU_TUPLE, DEB_TARGET_GNU_SYSTEM => INFO_TARGET_ARCH_NAME | INFO_TARGET_GNU_TUPLE, DEB_TARGET_GNU_TYPE => INFO_TARGET_ARCH_NAME | INFO_TARGET_GNU_TUPLE, ); my %known_print_format = map { $_ => 1 } qw(shell make); my $print_format = 'shell'; my %req_vars = %arch_vars; my $req_info = 0; my $req_host_arch = ''; my $req_host_gnu_type = ''; my $req_target_arch = ''; my $req_target_gnu_type = ''; my $req_eq_arch = ''; my $req_is_arch = ''; my $req_match_wildcard = ''; my $req_match_bits = ''; my $req_match_endian = ''; my $req_variable_to_print; my $action = 'list'; my $force = 0; sub action_needs($) { my $bits = shift; return (($req_info & $bits) == $bits); } @ARGV = normalize_options(args => \@ARGV, delim => '-c'); while (@ARGV) { my $arg = shift; if ($arg eq '-a' or $arg eq '--host-arch') { $req_host_arch = shift; } elsif ($arg eq '-t' or $arg eq '--host-type') { $req_host_gnu_type = shift; } elsif ($arg eq '-A' or $arg eq '--target-arch') { $req_target_arch = shift; } elsif ($arg eq '-T' or $arg eq '--target-type') { $req_target_gnu_type = shift; } elsif ($arg eq '-W' or $arg eq '--match-wildcard') { $req_match_wildcard = shift; } elsif ($arg eq '-B' or $arg eq '--match-bits') { $req_match_bits = shift; } elsif ($arg eq '-E' or $arg eq '--match-endian') { $req_match_endian = shift; } elsif ($arg eq '-e' or $arg eq '--equal') { $req_eq_arch = shift; %req_vars = %arch_vars{DEB_HOST_ARCH}; $action = 'equal'; } elsif ($arg eq '-i' or $arg eq '--is') { $req_is_arch = shift; %req_vars = %arch_vars{DEB_HOST_ARCH}; $action = 'is'; } elsif ($arg eq '-u' or $arg eq '--print-unset') { %req_vars = (); $action = 'print-unset'; } elsif ($arg eq '-l' or $arg eq '--list') { $action = 'list'; } elsif ($arg eq '-s' or $arg eq '--print-set') { %req_vars = %arch_vars; $action = 'print-set'; } elsif ($arg eq '--print-format') { $print_format = shift; error(g_('%s is not a supported print format'), $print_format) unless exists $known_print_format{$print_format}; } elsif ($arg eq '-f' or $arg eq '--force') { $force = 1; } elsif ($arg eq '-q' or $arg eq '--query') { my $varname = shift; error(g_('%s is not a supported variable name'), $varname) unless (exists $arch_vars{$varname}); $req_variable_to_print = "$varname"; %req_vars = %arch_vars{$varname}; $action = 'query'; } elsif ($arg eq '-c' or $arg eq '--command') { $action = 'command'; last; } elsif ($arg eq '-L' or $arg eq '--list-known') { %req_vars = (); $action = 'list-known'; } elsif ($arg eq '-?' or $arg eq '--help') { usage(); exit 0; } elsif ($arg eq '--version') { version(); exit 0; } else { usageerr(g_("unknown option '%s'"), $arg); } } my %v; # Initialize variables from environment and information to gather. foreach my $k (keys %req_vars) { if (length $ENV{$k} && ! $force) { $v{$k} = $ENV{$k}; delete $req_vars{$k}; } else { $req_info |= $req_vars{$k}; } } # # Set build variables # $v{DEB_BUILD_ARCH} = get_raw_build_arch() if (action_needs(INFO_BUILD_ARCH_NAME)); ($v{DEB_BUILD_ARCH_ABI}, $v{DEB_BUILD_ARCH_LIBC}, $v{DEB_BUILD_ARCH_OS}, $v{DEB_BUILD_ARCH_CPU}) = debarch_to_debtuple($v{DEB_BUILD_ARCH}) if (action_needs(INFO_BUILD_ARCH_TUPLE)); ($v{DEB_BUILD_ARCH_BITS}, $v{DEB_BUILD_ARCH_ENDIAN}) = debarch_to_abiattrs($v{DEB_BUILD_ARCH}) if (action_needs(INFO_BUILD_ARCH_ATTR)); $v{DEB_BUILD_MULTIARCH} = debarch_to_multiarch($v{DEB_BUILD_ARCH}) if (action_needs(INFO_BUILD_MULTIARCH)); if (action_needs(INFO_BUILD_GNU_TUPLE)) { $v{DEB_BUILD_GNU_TYPE} = debarch_to_gnutriplet($v{DEB_BUILD_ARCH}); ($v{DEB_BUILD_GNU_CPU}, $v{DEB_BUILD_GNU_SYSTEM}) = split(/-/, $v{DEB_BUILD_GNU_TYPE}, 2); } # # Set host variables # # First perform some sanity checks on the host arguments passed. ($req_host_arch, $req_host_gnu_type) = check_arch_coherency($req_host_arch, $req_host_gnu_type); # Proceed to compute the host variables if needed. $v{DEB_HOST_ARCH} = $req_host_arch || get_raw_host_arch() if (action_needs(INFO_HOST_ARCH_NAME)); ($v{DEB_HOST_ARCH_ABI}, $v{DEB_HOST_ARCH_LIBC}, $v{DEB_HOST_ARCH_OS}, $v{DEB_HOST_ARCH_CPU}) = debarch_to_debtuple($v{DEB_HOST_ARCH}) if (action_needs(INFO_HOST_ARCH_TUPLE)); ($v{DEB_HOST_ARCH_BITS}, $v{DEB_HOST_ARCH_ENDIAN}) = debarch_to_abiattrs($v{DEB_HOST_ARCH}) if (action_needs(INFO_HOST_ARCH_ATTR)); $v{DEB_HOST_MULTIARCH} = debarch_to_multiarch($v{DEB_HOST_ARCH}) if (action_needs(INFO_HOST_MULTIARCH)); if (action_needs(INFO_HOST_GNU_TUPLE)) { if ($req_host_gnu_type eq '') { $v{DEB_HOST_GNU_TYPE} = debarch_to_gnutriplet($v{DEB_HOST_ARCH}); } else { $v{DEB_HOST_GNU_TYPE} = $req_host_gnu_type; } ($v{DEB_HOST_GNU_CPU}, $v{DEB_HOST_GNU_SYSTEM}) = split(/-/, $v{DEB_HOST_GNU_TYPE}, 2); my $host_gnu_type = get_host_gnu_type(); warning(g_('specified GNU system type %s does not match CC system ' . 'type %s, try setting a correct CC environment variable'), $v{DEB_HOST_GNU_TYPE}, $host_gnu_type) if ($host_gnu_type ne '') && ($host_gnu_type ne $v{DEB_HOST_GNU_TYPE}); } # # Set target variables # # First perform some sanity checks on the target arguments passed. ($req_target_arch, $req_target_gnu_type) = check_arch_coherency($req_target_arch, $req_target_gnu_type); # Proceed to compute the target variables if needed. $v{DEB_TARGET_ARCH} = $req_target_arch || $v{DEB_HOST_ARCH} || $req_host_arch || get_raw_host_arch() if (action_needs(INFO_TARGET_ARCH_NAME)); ($v{DEB_TARGET_ARCH_ABI}, $v{DEB_TARGET_ARCH_LIBC}, $v{DEB_TARGET_ARCH_OS}, $v{DEB_TARGET_ARCH_CPU}) = debarch_to_debtuple($v{DEB_TARGET_ARCH}) if (action_needs(INFO_TARGET_ARCH_TUPLE)); ($v{DEB_TARGET_ARCH_BITS}, $v{DEB_TARGET_ARCH_ENDIAN}) = debarch_to_abiattrs($v{DEB_TARGET_ARCH}) if (action_needs(INFO_TARGET_ARCH_ATTR)); $v{DEB_TARGET_MULTIARCH} = debarch_to_multiarch($v{DEB_TARGET_ARCH}) if (action_needs(INFO_TARGET_MULTIARCH)); if (action_needs(INFO_TARGET_GNU_TUPLE)) { if ($req_target_gnu_type eq '') { $v{DEB_TARGET_GNU_TYPE} = debarch_to_gnutriplet($v{DEB_TARGET_ARCH}); } else { $v{DEB_TARGET_GNU_TYPE} = $req_target_gnu_type; } ($v{DEB_TARGET_GNU_CPU}, $v{DEB_TARGET_GNU_SYSTEM}) = split(/-/, $v{DEB_TARGET_GNU_TYPE}, 2); } if ($action eq 'list') { foreach my $k (sort keys %arch_vars) { print "$k=$v{$k}\n"; } } elsif ($action eq 'print-set') { if ($print_format eq 'shell') { foreach my $k (sort keys %arch_vars) { print "$k=$v{$k}; "; } print 'export ' . join(' ', sort keys %arch_vars) . "\n"; } elsif ($print_format eq 'make') { foreach my $k (sort keys %arch_vars) { print "export $k = $v{$k}\n"; } } } elsif ($action eq 'print-unset') { if ($print_format eq 'shell') { print 'unset ' . join(' ', sort keys %arch_vars) . "\n"; } elsif ($print_format eq 'make') { foreach my $k (sort keys %arch_vars) { print "undefine $k\n"; } } } elsif ($action eq 'equal') { exit !debarch_eq($v{DEB_HOST_ARCH}, $req_eq_arch); } elsif ($action eq 'is') { exit !debarch_is($v{DEB_HOST_ARCH}, $req_is_arch); } elsif ($action eq 'command') { @ENV{keys %v} = values %v; ## no critic (TestingAndDebugging::ProhibitNoWarnings) no warnings qw(exec); exec @ARGV or syserr(g_('unable to execute %s'), "@ARGV"); } elsif ($action eq 'query') { print "$v{$req_variable_to_print}\n"; } elsif ($action eq 'list-known') { foreach my $arch (get_valid_arches()) { my ($bits, $endian) = debarch_to_abiattrs($arch); next if $req_match_endian and $endian ne $req_match_endian; next if $req_match_bits and $bits ne $req_match_bits; next if $req_match_wildcard and not debarch_is($arch, $req_match_wildcard); print "$arch\n"; } }