1#! /usr/bin/env perl
2# Copyright 1998-2021 The OpenSSL Project Authors. All Rights Reserved.
3#
4# Licensed under the Apache License 2.0 (the "License").  You may not use
5# this file except in compliance with the License.  You can obtain a copy
6# in the file LICENSE in the source distribution or at
7# https://www.openssl.org/source/license.html
8
9# Determine the operating system and run ./Configure.  Far descendant from
10# Apache's minarch and GuessOS.
11
12package OpenSSL::config;
13
14use strict;
15use warnings;
16use Getopt::Std;
17use File::Basename;
18use IPC::Cmd;
19use POSIX;
20use Carp;
21
22# These control our behavior.
23my $DRYRUN;
24my $VERBOSE;
25my $WHERE = dirname($0);
26my $WAIT = 1;
27
28# Machine type, etc., used to determine the platform
29my $MACHINE;
30my $RELEASE;
31my $SYSTEM;
32my $VERSION;
33my $CCVENDOR;
34my $CCVER;
35my $GCC_BITS;
36my $GCC_ARCH;
37
38# Some environment variables; they will affect Configure
39my $CONFIG_OPTIONS = $ENV{CONFIG_OPTIONS} // '';
40my $CC;
41my $CROSS_COMPILE;
42
43# For determine_compiler_settings, the list of known compilers
44my @c_compilers = qw(clang gcc cc);
45# Methods to determine compiler version.  The expected output is one of
46# MAJOR or MAJOR.MINOR or MAJOR.MINOR.PATCH...  or false if the compiler
47# isn't of the given brand.
48# This is a list to ensure that gnu comes last, as we've made it a fallback
49my @cc_version =
50    (
51     clang => sub {
52         my $v = `$CROSS_COMPILE$CC -v 2>&1`;
53         $v =~ m/(?:(?:clang|LLVM) version|.*based on LLVM)\s+([0-9]+\.[0-9]+)/;
54         return $1;
55     },
56     gnu => sub {
57         my $v = `$CROSS_COMPILE$CC -dumpversion 2>/dev/null`;
58         # Strip off whatever prefix egcs prepends the number with.
59         # Hopefully, this will work for any future prefixes as well.
60         $v =~ s/^[a-zA-Z]*\-//;
61         return $v;
62     },
63    );
64
65# This is what we will set as the target for calling Configure.
66my $options = '';
67
68# Pattern matches against "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}"
69# The patterns are assumed to be wrapped like this: /^(${pattern})$/
70my $guess_patterns = [
71    [ 'A\/UX:.*',                   'm68k-apple-aux3' ],
72    [ 'AIX:[3-9]:4:.*',             '${MACHINE}-ibm-aix' ],
73    [ 'AIX:.*?:[5-9]:.*',           '${MACHINE}-ibm-aix' ],
74    [ 'AIX:.*',                     '${MACHINE}-ibm-aix3' ],
75    [ 'HI-UX:.*',                   '${MACHINE}-hi-hiux' ],
76    [ 'HP-UX:.*',
77      sub {
78          my $HPUXVER = $RELEASE;
79          $HPUXVER = s/[^.]*.[0B]*//;
80          # HPUX 10 and 11 targets are unified
81          return "${MACHINE}-hp-hpux1x" if $HPUXVER =~ m@1[0-9]@;
82          return "${MACHINE}-hp-hpux";
83      }
84    ],
85    [ 'IRIX:6\..*',                 'mips3-sgi-irix' ],
86    [ 'IRIX64:.*',                  'mips4-sgi-irix64' ],
87    [ 'Linux:[2-9]\..*',            '${MACHINE}-whatever-linux2' ],
88    [ 'Linux:1\..*',                '${MACHINE}-whatever-linux1' ],
89    [ 'GNU.*',                      'hurd-x86' ],
90    [ 'LynxOS:.*',                  '${MACHINE}-lynx-lynxos' ],
91    # BSD/OS always says 386
92    [ 'BSD\/OS:4\..*',              'i486-whatever-bsdi4' ],
93    # Order is important, this has to appear before 'BSD\/386:'
94    [ 'BSD/386:.*?:.*?:.*486.*|BSD/OS:.*?:.*?:.*?:.*486.*',
95      sub {
96          my $BSDVAR = `/sbin/sysctl -n hw.model`;
97          return "i586-whatever-bsdi" if $BSDVAR =~ m@Pentium@;
98          return "i386-whatever-bsdi";
99      }
100    ],
101    [ 'BSD\/386:.*|BSD\/OS:.*',     '${MACHINE}-whatever-bsdi' ],
102    # Order is important, this has to appear before 'FreeBSD:'
103    [ 'FreeBSD:.*?:.*?:.*386.*',
104      sub {
105          my $VERS = $RELEASE;
106          $VERS =~ s/[-(].*//;
107          my $MACH = `sysctl -n hw.model`;
108          $MACH = "i386" if $MACH =~ m@386@;
109          $MACH = "i486" if $MACH =~ m@486@;
110          $MACH = "i686" if $MACH =~ m@Pentium II@;
111          $MACH = "i586" if $MACH =~ m@Pentium@;
112          $MACH = "$MACHINE" if $MACH !~ /i.86/;
113          my $ARCH = 'whatever';
114          $ARCH = "pc" if $MACH =~ m@i[0-9]86@;
115          return "${MACH}-${ARCH}-freebsd${VERS}";
116      }
117    ],
118    [ 'DragonFly:.*',               '${MACHINE}-whatever-dragonfly' ],
119    [ 'FreeBSD:.*',                 '${MACHINE}-whatever-freebsd' ],
120    [ 'Haiku:.*',                   '${MACHINE}-whatever-haiku' ],
121    # Order is important, this has to appear before 'NetBSD:.*'
122    [ 'NetBSD:.*?:.*?:.*386.*',
123      sub {
124          my $hw = `/usr/sbin/sysctl -n hw.model || /sbin/sysctl -n hw.model`;
125          $hw =~  s@.*(.)86-class.*@i${1}86@;
126          return "${hw}-whatever-netbsd";
127      }
128    ],
129    [ 'NetBSD:.*',                  '${MACHINE}-whatever-netbsd' ],
130    [ 'OpenBSD:.*',                 '${MACHINE}-whatever-openbsd' ],
131    [ 'OpenUNIX:.*',                '${MACHINE}-unknown-OpenUNIX${VERSION}' ],
132    [ 'OSF1:.*?:.*?:.*alpha.*',
133      sub {
134          my $OSFMAJOR = $RELEASE;
135          $OSFMAJOR =~ 's/^V([0-9]*)\..*$/\1/';
136          return "${MACHINE}-dec-tru64" if $OSFMAJOR =~ m@[45]@;
137          return "${MACHINE}-dec-osf";
138      }
139    ],
140    [ 'Paragon.*?:.*',              'i860-intel-osf1' ],
141    [ 'Rhapsody:.*',                'ppc-apple-rhapsody' ],
142    [ 'Darwin:.*?:.*?:Power.*',     'ppc-apple-darwin' ],
143    [ 'Darwin:.*',                  '${MACHINE}-apple-darwin' ],
144    [ 'SunOS:5\..*',                '${MACHINE}-whatever-solaris2' ],
145    [ 'SunOS:.*',                   '${MACHINE}-sun-sunos4' ],
146    [ 'UNIX_System_V:4\..*?:.*',    '${MACHINE}-whatever-sysv4' ],
147    [ 'VOS:.*?:.*?:i786',           'i386-stratus-vos' ],
148    [ 'VOS:.*?:.*?:.*',             'hppa1.1-stratus-vos' ],
149    [ '.*?:4.*?:R4.*?:m88k',        '${MACHINE}-whatever-sysv4' ],
150    [ 'DYNIX\/ptx:4.*?:.*',         '${MACHINE}-whatever-sysv4' ],
151    [ '.*?:4\.0:3\.0:3[34]..(,.*)?', 'i486-ncr-sysv4' ],
152    [ 'ULTRIX:.*',                  '${MACHINE}-unknown-ultrix' ],
153    [ 'POSIX-BC.*',                 'BS2000-siemens-sysv4' ],
154    [ 'machten:.*',                 '${MACHINE}-tenon-${SYSTEM}' ],
155    [ 'library:.*',                 '${MACHINE}-ncr-sysv4' ],
156    [ 'ConvexOS:.*?:11\.0:.*',      '${MACHINE}-v11-${SYSTEM}' ],
157    [ 'MINGW64.*?:.*?:.*?:x86_64',  '${MACHINE}-whatever-mingw64' ],
158    [ 'MINGW.*',                    '${MACHINE}-whatever-mingw' ],
159    [ 'CYGWIN.*',                   '${MACHINE}-pc-cygwin' ],
160    [ 'vxworks.*',                  '${MACHINE}-whatever-vxworks' ],
161
162    # Note: there's also NEO and NSR, but they are old and unsupported
163    [ 'NONSTOP_KERNEL:.*:NSE-.*?',  'nse-tandem-nsk${RELEASE}' ],
164    [ 'NONSTOP_KERNEL:.*:NSV-.*?',  'nsv-tandem-nsk${RELEASE}' ],
165    [ 'NONSTOP_KERNEL:.*:NSX-.*?',  'nsx-tandem-nsk${RELEASE}' ],
166
167    [ sub { -d '/usr/apollo' },     'whatever-apollo-whatever' ],
168];
169
170# Run a command, return true if exit zero else false.
171# Multiple args are glued together into a pipeline.
172# Name comes from OpenSSL tests, often written as "ok(run(...."
173sub okrun {
174    my $command = join(' | ', @_);
175    my $status = system($command) >> 8;
176    return $status == 0;
177}
178
179# Give user a chance to abort/interrupt if interactive if interactive.
180sub maybe_abort {
181    if ( $WAIT && -t 1 ) {
182        eval {
183            local $SIG{ALRM} = sub { die "Timeout"; };
184            local $| = 1;
185            alarm(5);
186            print "You have about five seconds to abort: ";
187            my $ignored = <STDIN>;
188            alarm(0);
189        };
190        print "\n" if $@ =~ /Timeout/;
191    }
192}
193
194# Look for ISC/SCO with its unique uname program
195sub is_sco_uname {
196    return undef unless IPC::Cmd::can_run('uname');
197
198    open UNAME, "uname -X 2>/dev/null|" or return '';
199    my $line = "";
200    my $os = "";
201    while ( <UNAME> ) {
202        chop;
203        $line = $_ if m@^Release@;
204        $os = $_ if m@^System@;
205    }
206    close UNAME;
207
208    return undef if $line eq '' or $os eq 'System = SunOS';
209
210    my @fields = split(/\s+/, $line);
211    return $fields[2];
212}
213
214sub get_sco_type {
215    my $REL = shift;
216
217    if ( -f "/etc/kconfig" ) {
218        return "${MACHINE}-whatever-isc4" if $REL eq '4.0' || $REL eq '4.1';
219    } else {
220        return "whatever-whatever-sco3" if $REL eq '3.2v4.2';
221        return "whatever-whatever-sco5" if $REL =~ m@3\.2v5\.0.*@;
222        if ( $REL eq "4.2MP" ) {
223            return "whatever-whatever-unixware20" if $VERSION =~ m@2\.0.*@;
224            return "whatever-whatever-unixware21" if $VERSION =~ m@2\.1.*@;
225            return "whatever-whatever-unixware2" if $VERSION =~ m@2.*@;
226        }
227        return "whatever-whatever-unixware1" if $REL eq "4.2";
228        if ( $REL =~ m@5.*@ ) {
229            # We hardcode i586 in place of ${MACHINE} for the following
230            # reason: even though Pentium is minimum requirement for
231            # platforms in question, ${MACHINE} gets always assigned to
232            # i386. This means i386 gets passed to Configure, which will
233            # cause bad assembler code to be generated.
234            return "i586-sco-unixware7" if $VERSION =~ m@[678].*@;
235        }
236    }
237}
238
239# Return the cputype-vendor-osversion
240sub guess_system {
241    ($SYSTEM, undef, $RELEASE, $VERSION, $MACHINE) = POSIX::uname();
242    my $sys = "${SYSTEM}:${RELEASE}:${VERSION}:${MACHINE}";
243
244    # Special-cases for ISC, SCO, Unixware
245    my $REL = is_sco_uname();
246    if ( defined $REL ) {
247        my $result = get_sco_type($REL);
248        return eval "\"$result\"" if $result ne '';
249    }
250
251    # Now pattern-match
252
253    # Simple cases
254    foreach my $tuple ( @$guess_patterns ) {
255        my $pat = @$tuple[0];
256        my $check = ref $pat eq 'CODE' ? $pat->($sys) : $sys =~ /^(${pat})$/;
257        next unless $check;
258
259        my $result = @$tuple[1];
260        $result = $result->() if ref $result eq 'CODE';
261        return eval "\"$result\"";
262    }
263
264    # Oh well.
265    return "${MACHINE}-whatever-${SYSTEM}";
266}
267
268# We would use List::Util::pair() for this...  unfortunately, that function
269# only appeared in perl v5.19.3, and we claim to support perl v5.10 and on.
270# Therefore, we implement a quick cheap variant of our own.
271sub _pairs (@) {
272    croak "Odd number of arguments" if @_ & 1;
273
274    my @pairlist = ();
275
276    while (@_) {
277        my $x = [ shift, shift ];
278        push @pairlist, $x;
279    }
280    return @pairlist;
281}
282
283# Figure out CC, GCCVAR, etc.
284sub determine_compiler_settings {
285    # Make a copy and don't touch it.  That helps determine if we're finding
286    # the compiler here (false), or if it was set by the user (true.
287    my $cc = $CC;
288
289    # Set certain default
290    $CCVER = 0;                 # Unknown
291    $CCVENDOR = '';             # Dunno, don't care (unless found later)
292
293    # Find a compiler if we don't already have one
294    if ( ! $cc ) {
295        foreach (@c_compilers) {
296            next unless IPC::Cmd::can_run("$CROSS_COMPILE$_");
297            $CC = $_;
298            last;
299        }
300    }
301
302    if ( $CC ) {
303        # Find the compiler vendor and version number for certain compilers
304        foreach my $pair (_pairs @cc_version) {
305            # Try to get the version number.
306            # Failure gets us undef or an empty string
307            my ( $k, $v ) = @$pair;
308            $v = $v->();
309
310            # If we got a version number, process it
311            if ($v) {
312                $CCVENDOR = $k;
313
314                # The returned version is expected to be one of
315                #
316                # MAJOR
317                # MAJOR.MINOR
318                # MAJOR.MINOR.{whatever}
319                #
320                # We don't care what comes after MAJOR.MINOR.  All we need is
321                # to have them calculated into a single number, using this
322                # formula:
323                #
324                # MAJOR * 100 + MINOR
325                # Here are a few examples of what we should get:
326                #
327                # 2.95.1    => 295
328                # 3.1       => 301
329                # 9         => 900
330                my @numbers = split /\./, $v;
331                my @factors = (100, 1);
332                while (@numbers && @factors) {
333                    $CCVER += shift(@numbers) * shift(@factors)
334                }
335                last;
336            }
337        }
338    }
339
340    # Vendor specific overrides, only if we didn't determine the compiler here
341    if ( ! $cc ) {
342        if ( $SYSTEM eq 'OpenVMS' ) {
343            my $v = `CC/VERSION NLA0:`;
344            if ($? == 0) {
345                my ($vendor, $version) =
346                    ( $v =~ m/^([A-Z]+) C V([0-9\.-]+) on / );
347                my ($major, $minor, $patch) =
348                    ( $version =~ m/^([0-9]+)\.([0-9]+)-0*?(0|[1-9][0-9]*)$/ );
349                $CC = 'CC';
350                $CCVENDOR = $vendor;
351                $CCVER = ( $major * 100 + $minor ) * 100 + $patch;
352            }
353        }
354
355        if ( ${SYSTEM} eq 'AIX' ) {
356            # favor vendor cc over gcc
357            if (IPC::Cmd::can_run('cc')) {
358                $CC = 'cc';
359                $CCVENDOR = ''; # Determine later
360                $CCVER = 0;
361            }
362        }
363
364        if ( $SYSTEM eq "SunOS" ) {
365            # check for Oracle Developer Studio, expected output is "cc: blah-blah C x.x blah-blah"
366            my $v = `(cc -V 2>&1) 2>/dev/null | egrep -e '^cc: .* C [0-9]\.[0-9]'`;
367            my @numbers =
368                    ( $v =~ m/^.* C ([0-9]+)\.([0-9]+) .*/ );
369            my @factors = (100, 1);
370            $v = 0;
371            while (@numbers && @factors) {
372                $v += shift(@numbers) * shift(@factors)
373            }
374
375            if ($v > 500) {
376                $CC = 'cc';
377                $CCVENDOR = 'sun';
378                $CCVER = $v;
379            }
380        }
381    }
382
383    # If no C compiler has been determined at this point, we die.  Hard.
384    die <<_____
385ERROR!
386No C compiler found, please specify one with the environment variable CC,
387or configure with an explicit configuration target.
388_____
389        unless $CC;
390
391    # On some systems, we assume a cc vendor if it's not already determined
392
393    if ( ! $CCVENDOR ) {
394        $CCVENDOR = 'aix' if $SYSTEM eq 'AIX';
395        $CCVENDOR = 'sun' if $SYSTEM eq 'SunOS';
396    }
397
398    # Some systems need to know extra details
399
400    if ( $SYSTEM eq "HP-UX" && $CCVENDOR eq 'gnu' ) {
401        # By default gcc is a ILP32 compiler (with long long == 64).
402        $GCC_BITS = "32";
403        if ( $CCVER >= 300 ) {
404            # PA64 support only came in with gcc 3.0.x.
405            # We check if the preprocessor symbol __LP64__ is defined.
406            if ( okrun('echo __LP64__',
407                       "$CC -v -E -x c - 2>/dev/null",
408                       'grep "^__LP64__" 2>&1 >/dev/null') ) {
409                # __LP64__ has slipped through, it therefore is not defined
410            } else {
411                $GCC_BITS = '64';
412            }
413        }
414    }
415
416    if ( $SYSTEM eq "SunOS" && $CCVENDOR eq 'gnu' ) {
417        if ( $CCVER >= 300 ) {
418            # 64-bit ABI isn't officially supported in gcc 3.0, but seems
419            # to be working; at the very least 'make test' passes.
420            if ( okrun("$CC -v -E -x c /dev/null 2>&1",
421                       'grep __arch64__ >/dev/null') ) {
422                $GCC_ARCH = "-m64"
423            } else {
424                $GCC_ARCH = "-m32"
425            }
426        }
427    }
428
429    if ($VERBOSE) {
430        my $vendor = $CCVENDOR ? $CCVENDOR : "(undetermined)";
431        my $version = $CCVER ? $CCVER : "(undetermined)";
432        print "C compiler: $CC\n";
433        print "C compiler vendor: $vendor\n";
434        print "C compiler version: $version\n";
435    }
436}
437
438my $map_patterns =
439    [ [ 'uClinux.*64.*',          { target => 'uClinux-dist64' } ],
440      [ 'uClinux.*',              { target => 'uClinux-dist' } ],
441      [ 'mips3-sgi-irix',         { target => 'irix-mips3' } ],
442      [ 'mips4-sgi-irix64',
443        sub {
444            print <<EOF;
445WARNING! To build 64-bit package, do this:
446         $WHERE/Configure irix64-mips4-$CC
447EOF
448            maybe_abort();
449            return { target => "irix-mips3" };
450        }
451      ],
452      [ 'ppc-apple-rhapsody',     { target => "rhapsody-ppc" } ],
453      [ 'ppc-apple-darwin.*',
454        sub {
455            my $KERNEL_BITS = $ENV{KERNEL_BITS} // '';
456            my $ISA64 = `sysctl -n hw.optional.64bitops 2>/dev/null`;
457            if ( $ISA64 == 1 && $KERNEL_BITS eq '' ) {
458                print <<EOF;
459WARNING! To build 64-bit package, do this:
460         $WHERE/Configure darwin64-ppc-cc
461EOF
462                maybe_abort();
463            }
464            return { target => "darwin64-ppc" }
465                if $ISA64 == 1 && $KERNEL_BITS eq '64';
466            return { target => "darwin-ppc" };
467        }
468      ],
469      [ 'i.86-apple-darwin.*',
470        sub {
471            my $KERNEL_BITS = $ENV{KERNEL_BITS} // '';
472            my $ISA64 = `sysctl -n hw.optional.x86_64 2>/dev/null`;
473            if ( $ISA64 == 1 && $KERNEL_BITS eq '' ) {
474                print <<EOF;
475WARNING! To build 64-bit package, do this:
476         KERNEL_BITS=64 $WHERE/Configure \[\[ options \]\]
477EOF
478                maybe_abort();
479            }
480            return { target => "darwin64-x86_64" }
481                if $ISA64 == 1 && $KERNEL_BITS eq '64';
482            return { target => "darwin-i386" };
483        }
484      ],
485      [ 'x86_64-apple-darwin.*',
486        sub {
487            my $KERNEL_BITS = $ENV{KERNEL_BITS} // '';
488            return { target => "darwin-i386" } if $KERNEL_BITS eq '32';
489
490            print <<EOF;
491WARNING! To build 32-bit package, do this:
492         KERNEL_BITS=32 $WHERE/Configure \[\[ options \]\]
493EOF
494            maybe_abort();
495            return { target => "darwin64-x86_64" };
496        }
497      ],
498      [ 'arm64-apple-darwin.*', { target => "darwin64-arm64" } ],
499      [ 'armv6\+7-.*-iphoneos',
500        { target => "iphoneos-cross",
501          cflags => [ qw(-arch armv6 -arch armv7) ],
502          cxxflags => [ qw(-arch armv6 -arch armv7) ] }
503      ],
504      [ 'arm64-.*-iphoneos|.*-.*-ios64',
505        { target => "ios64-cross" }
506      ],
507      [ '.*-.*-iphoneos',
508        sub { return { target => "iphoneos-cross",
509                       cflags => [ "-arch ${MACHINE}" ],
510                       cxxflags => [ "-arch ${MACHINE}" ] }; }
511      ],
512      [ 'alpha-.*-linux2.*',
513        sub {
514            my $ISA = `awk '/cpu model/{print \$4;exit(0);}' /proc/cpuinfo`;
515            $ISA //= 'generic';
516            my %config = ();
517            if ( $CCVENDOR eq "gnu" ) {
518                if ( $ISA =~ 'EV5|EV45' ) {
519                    %config = ( cflags => [ '-mcpu=ev5' ],
520                                cxxflags =>  [ '-mcpu=ev5' ] );
521                } elsif ( $ISA =~ 'EV56|PCA56' ) {
522                    %config = ( cflags => [ '-mcpu=ev56' ],
523                                cxxflags =>  [ '-mcpu=ev56' ] );
524                } else {
525                    %config = ( cflags => [ '-mcpu=ev6' ],
526                                cxxflags =>  [ '-mcpu=ev6' ] );
527                }
528            }
529            return { target => "linux-alpha",
530                     %config };
531        }
532      ],
533      [ 'ppc64-.*-linux2',
534        sub {
535            my $KERNEL_BITS = $ENV{KERNEL_BITS} // '';
536            if ( $KERNEL_BITS eq '' ) {
537                print <<EOF;
538WARNING! To build 64-bit package, do this:
539         $WHERE/Configure linux-ppc64
540EOF
541                maybe_abort();
542            }
543            return { target => "linux-ppc64" } if $KERNEL_BITS eq '64';
544
545            my %config = ();
546            if (!okrun('echo __LP64__',
547                       'gcc -E -x c - 2>/dev/null',
548                       'grep "^__LP64__" 2>&1 >/dev/null') ) {
549                %config = ( cflags => [ '-m32' ],
550                            cxxflags =>  [ '-m32' ] );
551            }
552            return { target => "linux-ppc",
553                     %config };
554        }
555      ],
556      [ 'ppc64le-.*-linux2',      { target => "linux-ppc64le" } ],
557      [ 'ppc-.*-linux2',          { target => "linux-ppc" } ],
558      [ 'mips64.*-*-linux2',
559        sub {
560            print <<EOF;
561WARNING! To build 64-bit package, do this:
562         $WHERE/Configure linux64-mips64
563EOF
564            maybe_abort();
565            return { target => "linux-mips64" };
566        }
567      ],
568      [ 'mips.*-.*-linux2',       { target => "linux-mips32" } ],
569      [ 'ppc60x-.*-vxworks.*',    { target => "vxworks-ppc60x" } ],
570      [ 'ppcgen-.*-vxworks.*',    { target => "vxworks-ppcgen" } ],
571      [ 'pentium-.*-vxworks.*',   { target => "vxworks-pentium" } ],
572      [ 'simlinux-.*-vxworks.*',  { target => "vxworks-simlinux" } ],
573      [ 'mips-.*-vxworks.*',      { target => "vxworks-mips" } ],
574      [ 'e2k-.*-linux.*',         { target => "linux-generic64",
575                                    defines => [ 'L_ENDIAN' ] } ],
576      [ 'ia64-.*-linux.',         { target => "linux-ia64" } ],
577      [ 'sparc64-.*-linux2',
578        sub {
579            print <<EOF;
580WARNING! If you *know* that your GNU C supports 64-bit/V9 ABI and you
581         want to build 64-bit library, do this:
582         $WHERE/Configure linux64-sparcv9
583EOF
584            maybe_abort();
585            return { target => "linux-sparcv9" };
586        }
587      ],
588      [ 'sparc-.*-linux2',
589        sub {
590            my $KARCH = `awk '/^type/{print \$3;exit(0);}' /proc/cpuinfo`;
591            $KARCH //= "sun4";
592            return { target => "linux-sparcv9" } if $KARCH =~ 'sun4u.*';
593            return { target => "linux-sparcv8" } if $KARCH =~ 'sun4[md]';
594            return { target => "linux-generic32",
595                     defines => [ 'L_ENDIAN' ] };
596        }
597      ],
598      [ 'parisc.*-.*-linux2',
599        sub {
600            # 64-bit builds under parisc64 linux are not supported and
601            # compiler is expected to generate 32-bit objects...
602            my $CPUARCH =
603                `awk '/cpu family/{print substr(\$5,1,3); exit(0);}' /proc/cpuinfo`;
604            my $CPUSCHEDULE =
605                `awk '/^cpu.[ 	]*: PA/{print substr(\$3,3); exit(0);}' /proc/cpuinfo`;
606            # TODO XXX  Model transformations
607            # 0. CPU Architecture for the 1.1 processor has letter suffixes.
608            #    We strip that off assuming no further arch. identification
609            #    will ever be used by GCC.
610            # 1. I'm most concerned about whether is a 7300LC is closer to a
611            #    7100 versus a 7100LC.
612            # 2. The variant 64-bit processors cause concern should GCC support
613            #    explicit schedulers for these chips in the future.
614            #         PA7300LC -> 7100LC (1.1)
615            #         PA8200   -> 8000   (2.0)
616            #         PA8500   -> 8000   (2.0)
617            #         PA8600   -> 8000   (2.0)
618            $CPUSCHEDULE =~ s/7300LC/7100LC/;
619            $CPUSCHEDULE =~ s/8.00/8000/;
620            return
621                { target => "linux-generic32",
622                  defines => [ 'B_ENDIAN' ],
623                  cflags => [ "-mschedule=$CPUSCHEDULE", "-march=$CPUARCH" ],
624                  cxxflags => [ "-mschedule=$CPUSCHEDULE", "-march=$CPUARCH" ]
625                };
626        }
627      ],
628      [ 'armv[1-3].*-.*-linux2',  { target => "linux-generic32" } ],
629      [ 'armv[7-9].*-.*-linux2',  { target => "linux-armv4",
630                                    cflags => [ '-march=armv7-a' ],
631                                    cxxflags => [ '-march=armv7-a' ] } ],
632      [ 'arm.*-.*-linux2',        { target => "linux-armv4" } ],
633      [ 'aarch64-.*-linux2',      { target => "linux-aarch64" } ],
634      [ 'sh.*b-.*-linux2',        { target => "linux-generic32",
635                                    defines => [ 'B_ENDIAN' ] } ],
636      [ 'sh.*-.*-linux2',         { target => "linux-generic32",
637                                    defines => [ 'L_ENDIAN' ] } ],
638      [ 'm68k.*-.*-linux2',       { target => "linux-generic32",
639                                    defines => [ 'B_ENDIAN' ] } ],
640      [ 's390-.*-linux2',         { target => "linux-generic32",
641                                    defines => [ 'B_ENDIAN' ] } ],
642      [ 's390x-.*-linux2',
643        sub {
644            # Disabled until a glibc bug is fixed; see Configure.
645            if (0
646                || okrun('egrep -e \'^features.* highgprs\' /proc/cpuinfo >/dev/null') )
647                {
648                    print <<EOF;
649WARNING! To build "highgprs" 32-bit package, do this:
650         $WHERE/Configure linux32-s390x
651EOF
652                    maybe_abort();
653                }
654            return { target => "linux64-s390x" };
655        }
656      ],
657      [ 'x86_64-.*-linux.',
658        sub {
659            return { target => "linux-x32" }
660                if okrun("$CC -dM -E -x c /dev/null 2>&1",
661                         'grep -q ILP32 >/dev/null');
662            return { target => "linux-x86_64" };
663        }
664      ],
665      [ '.*86-.*-linux2',
666        sub {
667            # On machines where the compiler understands -m32, prefer a
668            # config target that uses it
669            return { target => "linux-x86" }
670                if okrun("$CC -m32 -E -x c /dev/null >/dev/null 2>&1");
671            return { target => "linux-elf" };
672        }
673      ],
674      [ '.*86-.*-linux1',         { target => "linux-aout" } ],
675      [ 'riscv64-.*-linux.',      { target => "linux64-riscv64" } ],
676      [ '.*-.*-linux.',           { target => "linux-generic32" } ],
677      [ 'sun4[uv].*-.*-solaris2',
678        sub {
679            my $KERNEL_BITS = $ENV{KERNEL_BITS};
680            my $ISA64 = `isainfo 2>/dev/null | grep sparcv9`;
681            my $KB = $KERNEL_BITS // '64';
682            if ( $ISA64 ne "" && $KB eq '64' ) {
683                if ( $CCVENDOR eq "sun" && $CCVER >= 500 ) {
684                    print <<EOF;
685WARNING! To build 32-bit package, do this:
686         $WHERE/Configure solaris-sparcv9-cc
687EOF
688                    maybe_abort();
689                } elsif ( $CCVENDOR eq "gnu" && $GCC_ARCH eq "-m64" ) {
690                    # $GCC_ARCH denotes default ABI chosen by compiler driver
691                    # (first one found on the $PATH). I assume that user
692                    # expects certain consistency with the rest of his builds
693                    # and therefore switch over to 64-bit. <appro>
694                    print <<EOF;
695WARNING! To build 32-bit package, do this:
696         $WHERE/Configure solaris-sparcv9-gcc
697EOF
698                    maybe_abort();
699                    return { target => "solaris64-sparcv9-gcc" };
700                } elsif ( $GCC_ARCH eq "-m32" ) {
701                    print <<EOF;
702NOTICE! If you *know* that your GNU C supports 64-bit/V9 ABI and you wish
703        to build 64-bit library, do this:
704        $WHERE/Configure solaris64-sparcv9-gcc
705EOF
706                    maybe_abort();
707                }
708            }
709            return { target => "solaris64-sparcv9-cc" }
710                if $ISA64 ne "" && $KB eq '64';
711            return { target => "solaris-sparcv9-cc" };
712        }
713      ],
714      [ 'sun4m-.*-solaris2',      { target => "solaris-sparcv8" } ],
715      [ 'sun4d-.*-solaris2',      { target => "solaris-sparcv8" } ],
716      [ 'sun4.*-.*-solaris2',     { target => "solaris-sparcv7" } ],
717      [ '.*86.*-.*-solaris2',
718        sub {
719            my $KERNEL_BITS = $ENV{KERNEL_BITS};
720            my $ISA64 = `isainfo 2>/dev/null | grep amd64`;
721            my $KB = $KERNEL_BITS // '64';
722            if ($ISA64 ne "" && $KB eq '64') {
723                return { target => "solaris64-x86_64-gcc" } if $CCVENDOR eq "gnu";
724                return { target => "solaris64-x86_64-cc" };
725            }
726            my $REL = uname('-r');
727            $REL =~ s/5\.//;
728            my @tmp_disable = ();
729            push @tmp_disable, 'sse2' if int($REL) < 10;
730            #There is no solaris-x86-cc target
731            return { target => "solaris-x86-gcc",
732                     disable => [ @tmp_disable ] };
733        }
734      ],
735      # We don't have any sunos target in Configurations/*.conf, so why here?
736      [ '.*-.*-sunos4',           { target => "sunos" } ],
737      [ '.*86.*-.*-bsdi4',        { target => "BSD-x86-elf",
738                                    lflags => [ '-ldl' ],
739                                    disable => [ 'sse2' ] } ],
740      [ 'alpha.*-.*-.*bsd.*',     { target => "BSD-generic64",
741                                    defines => [ 'L_ENDIAN' ] } ],
742      [ 'powerpc64-.*-.*bsd.*',   { target => "BSD-generic64",
743                                    defines => [ 'B_ENDIAN' ] } ],
744      [ 'sparc64-.*-.*bsd.*',     { target => "BSD-sparc64" } ],
745      [ 'ia64-.*-.*bsd.*',        { target => "BSD-ia64" } ],
746      [ 'x86_64-.*-dragonfly.*',  { target => "BSD-x86_64" } ],
747      [ 'amd64-.*-.*bsd.*',       { target => "BSD-x86_64" } ],
748      [ '.*86.*-.*-.*bsd.*',
749        sub {
750            # mimic ld behaviour when it's looking for libc...
751            my $libc;
752            if ( -l "/usr/lib/libc.so" ) {
753                $libc = "/usr/lib/libc.so";
754            } else {
755                # ld searches for highest libc.so.* and so do we
756                $libc =
757                    `(ls /usr/lib/libc.so.* /lib/libc.so.* | tail -1) 2>/dev/null`;
758            }
759            my $what = `file -L $libc 2>/dev/null`;
760            return { target => "BSD-x86-elf" } if $what =~ /ELF/;
761            return { target => "BSD-x86",
762                     disable => [ 'sse2' ] };
763        }
764      ],
765      [ '.*-.*-.*bsd.*',          { target => "BSD-generic32" } ],
766      [ 'x86_64-.*-haiku',        { target => "haiku-x86_64" } ],
767      [ '.*-.*-haiku',            { target => "haiku-x86" } ],
768      [ '.*-.*-osf',              { target => "osf1-alpha" } ],
769      [ '.*-.*-tru64',            { target => "tru64-alpha" } ],
770      [ '.*-.*-[Uu]nix[Ww]are7',
771        sub {
772            return { target => "unixware-7",
773                     disable => [ 'sse2' ] } if $CCVENDOR eq "gnu";
774            return { target => "unixware-7",
775                     defines => [ '__i386__' ] };
776        }
777      ],
778      [ '.*-.*-[Uu]nix[Ww]are20.*', { target => "unixware-2.0",
779                                      disable => [ 'sse2', 'sha512' ] } ],
780      [ '.*-.*-[Uu]nix[Ww]are21.*', { target => "unixware-2.1",
781                                      disable => [ 'sse2', 'sha512' ] } ],
782      [ '.*-.*-vos',              { target => "vos",
783                                    disable => [ 'threads', 'shared', 'asm',
784                                                 'dso' ] } ],
785      [ 'BS2000-siemens-sysv4',   { target => "BS2000-OSD" } ],
786      [ 'i[3456]86-.*-cygwin',    { target => "Cygwin-x86" } ],
787      [ '.*-.*-cygwin',
788        sub { return { target => "Cygwin-${MACHINE}" } } ],
789      [ 'x86-.*-android|i.86-.*-android', { target => "android-x86" } ],
790      [ 'armv[7-9].*-.*-android', { target => "android-armeabi",
791                                    cflags => [ '-march=armv7-a' ],
792                                    cxxflags => [ '-march=armv7-a' ] } ],
793      [ 'arm.*-.*-android',       { target => "android-armeabi" } ],
794      [ '.*-hpux1.*',
795        sub {
796            my $KERNEL_BITS = $ENV{KERNEL_BITS};
797            my %common_return = ( defines => [ '_REENTRANT' ] );
798            $KERNEL_BITS ||= `getconf KERNEL_BITS 2>/dev/null` // '32';
799            # See <sys/unistd.h> for further info on CPU_VERSION.
800            my $CPU_VERSION = `getconf CPU_VERSION 2>/dev/null` // 0;
801            if ( $CPU_VERSION >= 768 ) {
802                # IA-64 CPU
803                return { target => "hpux64-ia64",
804                         %common_return }
805                    if $KERNEL_BITS eq '64' && ! $CCVENDOR;
806                return { target => "hpux-ia64",
807                         %common_return };
808            }
809            if ( $CPU_VERSION >= 532 ) {
810                # PA-RISC 2.x CPU
811                # PA-RISC 2.0 is no longer supported as separate 32-bit
812                # target. This is compensated for by run-time detection
813                # in most critical assembly modules and taking advantage
814                # of 2.0 architecture in PA-RISC 1.1 build.
815                my $target = ($CCVENDOR eq "gnu" && $GCC_BITS eq '64')
816                    ? "hpux64-parisc2"
817                    : "hpux-parisc1_1";
818                if ( $KERNEL_BITS eq '64' && ! $CCVENDOR ) {
819                    print <<EOF;
820WARNING! To build 64-bit package, do this:
821         $WHERE/Configure hpux64-parisc2-cc
822EOF
823                    maybe_abort();
824                }
825                return { target => $target,
826                         %common_return };
827            }
828            # PA-RISC 1.1+ CPU?
829            return { target => "hpux-parisc1_1",
830                     %common_return } if $CPU_VERSION >= 528;
831            # PA-RISC 1.0 CPU
832            return { target => "hpux-parisc",
833                     %common_return } if $CPU_VERSION >= 523;
834            # Motorola(?) CPU
835            return { target => "hpux",
836                     %common_return };
837        }
838      ],
839      [ '.*-hpux',                { target => "hpux-parisc" } ],
840      [ '.*-aix',
841        sub {
842            my %config = ();
843            my $KERNEL_BITS = $ENV{KERNEL_BITS};
844            $KERNEL_BITS ||= `getconf KERNEL_BITMODE 2>/dev/null`;
845            $KERNEL_BITS ||= '32';
846            my $OBJECT_MODE = $ENV{OBJECT_MODE};
847            $OBJECT_MODE ||= 32;
848            $config{target} = "aix";
849            if ( $OBJECT_MODE == 64 ) {
850                print 'Your $OBJECT_MODE was found to be set to 64';
851                $config{target} = "aix64";
852            } else {
853                if ( $CCVENDOR ne 'gnu' && $KERNEL_BITS eq '64' ) {
854                    print <<EOF;
855WARNING! To build 64-bit package, do this:
856         $WHERE/Configure aix64-cc
857EOF
858                    maybe_abort();
859                }
860            }
861            if ( okrun(
862                       "(lsattr -E -O -l `lsdev -c processor|awk '{print \$1;exit}'`",
863                       'grep -i powerpc) >/dev/null 2>&1') ) {
864                # this applies even to Power3 and later, as they return
865                # PowerPC_POWER[345]
866            } else {
867                $config{disable} = [ 'asm' ];
868            }
869            return %config;
870        }
871      ],
872
873      # Windows values found by looking at Perl 5's win32/win32.c
874      [ 'amd64-.*?-Windows NT',   { target => 'VC-WIN64A' } ],
875      [ 'ia64-.*?-Windows NT',    { target => 'VC-WIN64I' } ],
876      [ 'x86-.*?-Windows NT',     { target => 'VC-WIN32'  } ],
877
878      # VMS values found by observation on existing machinery.
879      # Unfortunately, the machine part is a bit...  overdone.  It seems,
880      # though, that 'Alpha' exists in that part for Alphas, making it
881      # distinguishable from Itanium.  It will be interesting to see what
882      # we'll get in the upcoming x86_64 port...
883      [ '.*Alpha.*?-.*?-OpenVMS', { target => 'vms-alpha' } ],
884      [ '.*?-.*?-OpenVMS',        { target => 'vms-ia64'  } ],
885
886      # TODO: There are a few more choices among OpenSSL config targets, but
887      # reaching them involves a bit more than just a host tripet.  Select
888      # environment variables could do the job to cover for more granular
889      # build options such as data model (ILP32 or LP64), thread support
890      # model (PUT, SPT or nothing), target execution environment (OSS or
891      # GUARDIAN).  And still, there must be some kind of default when
892      # nothing else is said.
893      #
894      # nsv is a virtual x86 environment, equivalent to nsx, so we enforce
895      # the latter.
896      [ 'nse-tandem-nsk.*',       { target => 'nonstop-nse' } ],
897      [ 'nsv-tandem-nsk.*',       { target => 'nonstop-nsx' } ],
898      [ 'nsx-tandem-nsk.*',       { target => 'nonstop-nsx' } ],
899
900    ];
901
902# Map GUESSOS into OpenSSL terminology.
903# Returns a hash table with diverse entries, most importantly 'target',
904# but also other entries that are fitting for Configure's %config
905# and MACHINE.
906# It would be nice to fix this so that this weren't necessary. :( XXX
907sub map_guess {
908    my $GUESSOS = shift;
909
910    foreach my $tuple ( @$map_patterns ) {
911        my $pat = @$tuple[0];
912        next if $GUESSOS !~ /^${pat}$/;
913        my $result = @$tuple[1];
914        $result = $result->() if ref $result eq 'CODE';
915        return %$result;
916    }
917
918    # Last case, return "z" from x-y-z
919    my @fields = split(/-/, $GUESSOS);
920    return ( target => $fields[2] );
921}
922
923# gcc < 2.8 does not support -march=ultrasparc
924sub check_solaris_sparc8 {
925    my $OUT = shift;
926    if ( $CCVENDOR eq 'gnu' && $CCVER < 208 ) {
927        if ( $OUT eq 'solaris-sparcv9-gcc' ) {
928            print <<EOF;
929WARNING! Downgrading to solaris-sparcv8-gcc
930         Upgrade to gcc-2.8 or later.
931EOF
932            maybe_abort();
933            return 'solaris-sparcv8-gcc';
934        }
935        if ( $OUT eq "linux-sparcv9" ) {
936            print <<EOF;
937WARNING! Downgrading to linux-sparcv8
938         Upgrade to gcc-2.8 or later.
939EOF
940            maybe_abort();
941            return 'linux-sparcv8';
942        }
943    }
944    return $OUT;
945}
946
947###
948###   MAIN PROCESSING
949###
950
951sub get_platform {
952    my %options = @_;
953
954    $VERBOSE = 1 if defined $options{verbose};
955    $WAIT = 0 if defined $options{nowait};
956    $CC = $options{CC};
957    $CROSS_COMPILE = $options{CROSS_COMPILE} // '';
958
959    my $GUESSOS = guess_system();
960    determine_compiler_settings();
961
962    my %ret = map_guess($GUESSOS);
963    $ret{target} = check_solaris_sparc8($ret{target});
964    return %ret;
965}
966
9671;
968