Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the Apache License 2.0 (the "License").  You may not use
   6 # this file except in compliance with the License.  You can obtain a copy
   7 # in the file LICENSE in the source distribution or at
   8 # https://www.openssl.org/source/license.html
   9
  10 ##  Configure -- OpenSSL source tree configuration script
  11
  12 use 5.10.0;
  13 use strict;
  14 use Config;
  15 use FindBin;
  16 use lib "$FindBin::Bin/util/perl";
  17 use File::Basename;
  18 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs splitdir/;
  19 use File::Path qw/mkpath/;
  20 use OpenSSL::Glob;
  21
  22 # see INSTALL for instructions.
  23
  24 my $orig_death_handler = $SIG{__DIE__};
  25 $SIG{__DIE__} = \&death_handler;
  26
  27 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
  28
  29 # Options:
  30 #
  31 # --config      add the given configuration file, which will be read after
  32 #               any "Configurations*" files that are found in the same
  33 #               directory as this script.
  34 # --prefix      prefix for the OpenSSL installation, which includes the
  35 #               directories bin, lib, include, share/man, share/doc/openssl
  36 #               This becomes the value of INSTALLTOP in Makefile
  37 #               (Default: /usr/local)
  38 # --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
  39 #               If it's a relative directory, it will be added on the directory
  40 #               given with --prefix.
  41 #               This becomes the value of OPENSSLDIR in Makefile and in C.
  42 #               (Default: PREFIX/ssl)
  43 #
  44 # --cross-compile-prefix Add specified prefix to binutils components.
  45 #
  46 # --api         One of 0.9.8, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, or 3.0.0 / 3.
  47 #               Do not compile support for interfaces deprecated as of the
  48 #               specified OpenSSL version.
  49 #
  50 # no-hw-xxx     do not compile support for specific crypto hardware.
  51 #               Generic OpenSSL-style methods relating to this support
  52 #               are always compiled but return NULL if the hardware
  53 #               support isn't compiled.
  54 # no-hw         do not compile support for any crypto hardware.
  55 # [no-]threads  [don't] try to create a library that is suitable for
  56 #               multithreaded applications (default is "threads" if we
  57 #               know how to do it)
  58 # [no-]shared   [don't] try to create shared libraries when supported.
  59 # [no-]pic      [don't] try to build position independent code when supported.
  60 #               If disabled, it also disables shared and dynamic-engine.
  61 # no-asm        do not use assembler
  62 # no-dso        do not compile in any native shared-library methods. This
  63 #               will ensure that all methods just return NULL.
  64 # no-egd        do not compile support for the entropy-gathering daemon APIs
  65 # [no-]zlib     [don't] compile support for zlib compression.
  66 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  67 #               library and will be loaded in run-time by the OpenSSL library.
  68 # sctp          include SCTP support
  69 # enable-weak-ssl-ciphers
  70 #               Enable weak ciphers that are disabled by default.
  71 # 386           generate 80386 code in assembly modules
  72 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  73 #               mentioned '386' option implies this one
  74 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  75 # -<xxx> +<xxx> compiler options are passed through
  76 # -static       while -static is also a pass-through compiler option (and
  77 #               as such is limited to environments where it's actually
  78 #               meaningful), it triggers a number configuration options,
  79 #               namely no-dso, no-pic, no-shared and no-threads. It is
  80 #               argued that the only reason to produce statically linked
  81 #               binaries (and in context it means executables linked with
  82 #               -static flag, and not just executables linked with static
  83 #               libcrypto.a) is to eliminate dependency on specific run-time,
  84 #               a.k.a. libc version. The mentioned config options are meant
  85 #               to achieve just that. Unfortunately on Linux it's impossible
  86 #               to eliminate the dependency completely for openssl executable
  87 #               because of getaddrinfo and gethostbyname calls, which can
  88 #               invoke dynamically loadable library facility anyway to meet
  89 #               the lookup requests. For this reason on Linux statically
  90 #               linked openssl executable has rather debugging value than
  91 #               production quality.
  92 #
  93 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
  94 #               provided to stack calls. Generates unique stack functions for
  95 #               each possible stack type.
  96 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  97 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
  98 # Following are set automatically by this script
  99 #
 100 # MD5_ASM       use some extra md5 assembler,
 101 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
 102 # RMD160_ASM    use some extra ripemd160 assembler,
 103 # SHA256_ASM    sha256_block is implemented in assembler
 104 # SHA512_ASM    sha512_block is implemented in assembler
 105 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 106
 107 # Minimum warning options... any contributions to OpenSSL should at least get
 108 # past these.
 109
 110 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 111 # -DPEDANTIC complements -pedantic and is meant to mask code that
 112 # is not strictly standard-compliant and/or implementation-specific,
 113 # e.g. inline assembly, disregards to alignment requirements, such
 114 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 115 # to be used even in sanitized builds, because sanitizer too is
 116 # supposed to and does take notice of non-standard behaviour. Then
 117 # -pedantic with pre-C9x compiler would also complain about 'long
 118 # long' not being supported. As 64-bit algorithms are common now,
 119 # it grew impossible to resolve this without sizeable additional
 120 # code, so we just tell compiler to be pedantic about everything
 121 # but 'long long' type.
 122
 123 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
 124         . " -DPEDANTIC -pedantic -Wno-long-long"
 125         . " -Wall"
 126         . " -Wextra"
 127         . " -Wno-unused-parameter"
 128         . " -Wno-missing-field-initializers"
 129         . " -Wswitch"
 130         . " -Wsign-compare"
 131         . " -Wmissing-prototypes"
 132         . " -Wstrict-prototypes"
 133         . " -Wshadow"
 134         . " -Wformat"
 135         . " -Wtype-limits"
 136         . " -Wundef"
 137         . " -Werror"
 138         ;
 139
 140 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 141 # TODO(openssl-team): fix problems and investigate if (at least) the
 142 # following warnings can also be enabled:
 143 #       -Wcast-align
 144 #       -Wunreachable-code -- no, too ugly/compiler-specific
 145 #       -Wlanguage-extension-token -- no, we use asm()
 146 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 147 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 148 my $clang_devteam_warn = ""
 149         . " -Wswitch-default"
 150         . " -Wno-parentheses-equality"
 151         . " -Wno-language-extension-token"
 152         . " -Wno-extended-offsetof"
 153         . " -Wconditional-uninitialized"
 154         . " -Wincompatible-pointer-types-discards-qualifiers"
 155         . " -Wmissing-variable-declarations"
 156         . " -Wno-unknown-warning-option"
 157         ;
 158
 159 # This adds backtrace information to the memory leak info.  Is only used
 160 # when crypto-mdebug-backtrace is enabled.
 161 my $memleak_devteam_backtrace = "-rdynamic";
 162
 163 my $strict_warnings = 0;
 164
 165 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 166 # which would cover all BSD flavors. -pthread applies to them all,
 167 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 168 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 169 # which has to be accompanied by explicit -D_THREAD_SAFE and
 170 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 171 # seems to be sufficient?
 172 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 173
 174 #
 175 # API compatibility name to version number mapping.
 176 #
 177 my $maxapi = "3.0.0";           # API for "no-deprecated" builds
 178 my $apitable = {
 179     "3.0.0" => 3,
 180     "1.1.1" => 2,
 181     "1.1.0" => 2,
 182     "1.0.2" => 1,
 183     "1.0.1" => 1,
 184     "1.0.0" => 1,
 185     "0.9.8" => 0,
 186 };
 187
 188 our %table = ();
 189 our %config = ();
 190 our %withargs = ();
 191 our $now_printing;      # set to current entry's name in print_table_entry
 192                         # (todo: right thing would be to encapsulate name
 193                         # into %target [class] and make print_table_entry
 194                         # a method)
 195
 196 # Forward declarations ###############################################
 197
 198 # read_config(filename)
 199 #
 200 # Reads a configuration file and populates %table with the contents
 201 # (which the configuration file places in %targets).
 202 sub read_config;
 203
 204 # resolve_config(target)
 205 #
 206 # Resolves all the late evaluations, inheritances and so on for the
 207 # chosen target and any target it inherits from.
 208 sub resolve_config;
 209
 210
 211 # Information collection #############################################
 212
 213 # Unified build supports separate build dir
 214 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 215 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 216 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 217
 218 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 219
 220 $config{sourcedir} = abs2rel($srcdir);
 221 $config{builddir} = abs2rel($blddir);
 222
 223 # Collect reconfiguration information if needed
 224 my @argvcopy=@ARGV;
 225
 226 if (grep /^reconf(igure)?$/, @argvcopy) {
 227     die "reconfiguring with other arguments present isn't supported"
 228         if scalar @argvcopy > 1;
 229     if (-f "./configdata.pm") {
 230         my $file = "./configdata.pm";
 231         unless (my $return = do $file) {
 232             die "couldn't parse $file: $@" if $@;
 233             die "couldn't do $file: $!"    unless defined $return;
 234             die "couldn't run $file"       unless $return;
 235         }
 236
 237         @argvcopy = defined($configdata::config{perlargv}) ?
 238             @{$configdata::config{perlargv}} : ();
 239         die "Incorrect data to reconfigure, please do a normal configuration\n"
 240             if (grep(/^reconf/,@argvcopy));
 241         $config{perlenv} = $configdata::config{perlenv} // {};
 242     } else {
 243         die "Insufficient data to reconfigure, please do a normal configuration\n";
 244     }
 245 }
 246
 247 $config{perlargv} = [ @argvcopy ];
 248
 249 # Collect version numbers
 250 $config{major} = "unknown";
 251 $config{minor} = "unknown";
 252 $config{patch} = "unknown";
 253 $config{prerelease} = "";
 254 $config{build_metadata} = "";
 255 $config{shlib_version} = "unknown";
 256
 257 collect_information(
 258     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 259     qr/#\s+define\s+OPENSSL_VERSION_MAJOR\s+(\d+)/ =>
 260         sub { $config{major} = $1; },
 261     qr/#\s+define\s+OPENSSL_VERSION_MINOR\s+(\d+)/ =>
 262         sub { $config{minor} = $1; },
 263     qr/#\s+define\s+OPENSSL_VERSION_PATCH\s+(\d+)/ =>
 264         sub { $config{patch} = $1; },
 265     qr/#\s+define\s+OPENSSL_VERSION_PRE_RELEASE\s+"((?:\\.|[^"])*)"/ =>
 266         sub { $config{prerelease} = $1; },
 267     qr/#\s+define\s+OPENSSL_VERSION_BUILD_METADATA\s+"((?:\\.|[^"])*)"/ =>
 268         sub { $config{build_metadata} = $1; },
 269     qr/#\s+define\s+OPENSSL_SHLIB_VERSION\s+([\d\.]+)/ =>
 270         sub { $config{shlib_version} = $1; },
 271     );
 272 die "erroneous version information in opensslv.h: ",
 273     "$config{major}.$config{minor}.$config{patch}, $config{shlib_version}\n"
 274     if ($config{major} eq "unknown"
 275             || $config{minor} eq "unknown"
 276             || $config{patch} eq "unknown"
 277             || $config{shlib_version} eq "unknown");
 278
 279 $config{version} = "$config{major}.$config{minor}.$config{patch}";
 280 $config{full_version} = "$config{version}$config{prerelease}$config{build_metadata}";
 281
 282 # Collect target configurations
 283
 284 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 285 foreach (sort glob($pattern)) {
 286     &read_config($_);
 287 }
 288
 289 if (defined env($local_config_envname)) {
 290     if ($^O eq 'VMS') {
 291         # VMS environment variables are logical names,
 292         # which can be used as is
 293         $pattern = $local_config_envname . ':' . '*.conf';
 294     } else {
 295         $pattern = catfile(env($local_config_envname), '*.conf');
 296     }
 297
 298     foreach (sort glob($pattern)) {
 299         &read_config($_);
 300     }
 301 }
 302
 303 # Save away perl command information
 304 $config{perl_cmd} = $^X;
 305 $config{perl_version} = $Config{version};
 306 $config{perl_archname} = $Config{archname};
 307
 308 $config{prefix}="";
 309 $config{openssldir}="";
 310 $config{processor}="";
 311 $config{libdir}="";
 312 my $auto_threads=1;    # enable threads automatically? true by default
 313 my $default_ranlib;
 314
 315 # Known TLS and DTLS protocols
 316 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 317 my @dtls = qw(dtls1 dtls1_2);
 318
 319 # Explicitly known options that are possible to disable.  They can
 320 # be regexps, and will be used like this: /^no-${option}$/
 321 # For developers: keep it sorted alphabetically
 322
 323 my @disablables = (
 324     "ktls",
 325     "afalgeng",
 326     "aria",
 327     "asan",
 328     "asm",
 329     "async",
 330     "autoalginit",
 331     "autoerrinit",
 332     "autoload-config",
 333     "bf",
 334     "blake2",
 335     "camellia",
 336     "capieng",
 337     "cast",
 338     "chacha",
 339     "cmac",
 340     "cms",
 341     "comp",
 342     "crypto-mdebug",
 343     "crypto-mdebug-backtrace",
 344     "ct",
 345     "deprecated",
 346     "des",
 347     "devcryptoeng",
 348     "dgram",
 349     "dh",
 350     "dsa",
 351     "dso",
 352     "dtls",
 353     "dynamic-engine",
 354     "ec",
 355     "ec2m",
 356     "ecdh",
 357     "ecdsa",
 358     "ec_nistp_64_gcc_128",
 359     "egd",
 360     "engine",
 361     "err",
 362     "external-tests",
 363     "filenames",
 364     "fuzz-libfuzzer",
 365     "fuzz-afl",
 366     "gost",
 367     "heartbeats",
 368     "hw(-.+)?",
 369     "idea",
 370     "makedepend",
 371     "md2",
 372     "md4",
 373     "mdc2",
 374     "msan",
 375     "multiblock",
 376     "nextprotoneg",
 377     "ocb",
 378     "ocsp",
 379     "pic",
 380     "poly1305",
 381     "posix-io",
 382     "psk",
 383     "rc2",
 384     "rc4",
 385     "rc5",
 386     "rdrand",
 387     "rfc3779",
 388     "rmd160",
 389     "scrypt",
 390     "sctp",
 391     "seed",
 392     "shared",
 393     "siphash",
 394     "siv",
 395     "sm2",
 396     "sm3",
 397     "sm4",
 398     "sock",
 399     "srp",
 400     "srtp",
 401     "sse2",
 402     "ssl",
 403     "ssl-trace",
 404     "static-engine",
 405     "stdio",
 406     "tests",
 407     "threads",
 408     "tls",
 409     "ts",
 410     "ubsan",
 411     "ui-console",
 412     "unit-test",
 413     "whirlpool",
 414     "weak-ssl-ciphers",
 415     "zlib",
 416     "zlib-dynamic",
 417     );
 418 foreach my $proto ((@tls, @dtls))
 419         {
 420         push(@disablables, $proto);
 421         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 422         }
 423
 424 my %deprecated_disablables = (
 425     "ssl2" => undef,
 426     "buf-freelists" => undef,
 427     "ripemd" => "rmd160",
 428     "ui" => "ui-console",
 429     );
 430
 431 # All of the following are disabled by default:
 432
 433 our %disabled = ( # "what"         => "comment"
 434                   "asan"                => "default",
 435                   "crypto-mdebug"       => "default",
 436                   "crypto-mdebug-backtrace" => "default",
 437                   "devcryptoeng"        => "default",
 438                   "ec_nistp_64_gcc_128" => "default",
 439                   "egd"                 => "default",
 440                   "external-tests"      => "default",
 441                   "fuzz-libfuzzer"      => "default",
 442                   "fuzz-afl"            => "default",
 443                   "heartbeats"          => "default",
 444                   "md2"                 => "default",
 445                   "msan"                => "default",
 446                   "rc5"                 => "default",
 447                   "sctp"                => "default",
 448                   "ssl-trace"           => "default",
 449                   "ssl3"                => "default",
 450                   "ssl3-method"         => "default",
 451                   "ubsan"               => "default",
 452                   "unit-test"           => "default",
 453                   "weak-ssl-ciphers"    => "default",
 454                   "zlib"                => "default",
 455                   "zlib-dynamic"        => "default",
 456                   "ktls"                => "default",
 457                 );
 458
 459 # Note: => pair form used for aesthetics, not to truly make a hash table
 460 my @disable_cascades = (
 461     # "what"            => [ "cascade", ... ]
 462     sub { $config{processor} eq "386" }
 463                         => [ "sse2" ],
 464     "ssl"               => [ "ssl3" ],
 465     "ssl3-method"       => [ "ssl3" ],
 466     "zlib"              => [ "zlib-dynamic" ],
 467     "des"               => [ "mdc2" ],
 468     "ec"                => [ "ecdsa", "ecdh" ],
 469
 470     "dgram"             => [ "dtls", "sctp" ],
 471     "sock"              => [ "dgram" ],
 472     "dtls"              => [ @dtls ],
 473     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 474                         => [ "dtls" ],
 475
 476     "tls"               => [ @tls ],
 477     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 478                         => [ "tls" ],
 479
 480     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 481
 482     # Without DSO, we can't load dynamic engines, so don't build them dynamic
 483     "dso"               => [ "dynamic-engine" ],
 484
 485     # Without position independent code, there can be no shared libraries or DSOs
 486     "pic"               => [ "shared" ],
 487     "shared"            => [ "dynamic-engine" ],
 488     "engine"            => [ "afalgeng", "devcryptoeng" ],
 489
 490     # no-autoalginit is only useful when building non-shared
 491     "autoalginit"       => [ "shared", "apps" ],
 492
 493     "stdio"             => [ "apps", "capieng", "egd" ],
 494     "apps"              => [ "tests" ],
 495     "tests"             => [ "external-tests" ],
 496     "comp"              => [ "zlib" ],
 497     "ec"                => [ "tls1_3", "sm2" ],
 498     "sm3"               => [ "sm2" ],
 499     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 500
 501     sub { !$disabled{"msan"} } => [ "asm" ],
 502
 503     sub { $disabled{cmac}; } => [ "siv" ],
 504     );
 505
 506 # Avoid protocol support holes.  Also disable all versions below N, if version
 507 # N is disabled while N+1 is enabled.
 508 #
 509 my @list = (reverse @tls);
 510 while ((my $first, my $second) = (shift @list, shift @list)) {
 511     last unless @list;
 512     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 513                               => [ @list ] );
 514     unshift @list, $second;
 515 }
 516 my @list = (reverse @dtls);
 517 while ((my $first, my $second) = (shift @list, shift @list)) {
 518     last unless @list;
 519     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 520                               => [ @list ] );
 521     unshift @list, $second;
 522 }
 523
 524 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 525 # To remove something from %disabled, use "enable-foo".
 526 # For symmetry, "disable-foo" is a synonym for "no-foo".
 527
 528 &usage if ($#ARGV < 0);
 529
 530 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 531 # platform specific list separators.  Users from those platforms should
 532 # recognise those separators from how you set up the PATH to find executables.
 533 # The default is the Unix like separator, :, but as an exception, we also
 534 # support the space as separator.
 535 my $list_separator_re =
 536     { VMS           => qr/(?<!\^),/,
 537       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 538 # All the "make variables" we support
 539 # Some get pre-populated for the sake of backward compatibility
 540 # (we supported those before the change to "make variable" support.
 541 my %user = (
 542     AR          => env('AR'),
 543     ARFLAGS     => [],
 544     AS          => undef,
 545     ASFLAGS     => [],
 546     CC          => env('CC'),
 547     CFLAGS      => [],
 548     CXX         => env('CXX'),
 549     CXXFLAGS    => [],
 550     CPP         => undef,
 551     CPPFLAGS    => [],  # -D, -I, -Wp,
 552     CPPDEFINES  => [],  # Alternative for -D
 553     CPPINCLUDES => [],  # Alternative for -I
 554     CROSS_COMPILE => env('CROSS_COMPILE'),
 555     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 556     LD          => undef,
 557     LDFLAGS     => [],  # -L, -Wl,
 558     LDLIBS      => [],  # -l
 559     MT          => undef,
 560     MTFLAGS     => [],
 561     PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
 562     RANLIB      => env('RANLIB'),
 563     RC          => env('RC') || env('WINDRES'),
 564     RCFLAGS     => [],
 565     RM          => undef,
 566    );
 567 # Info about what "make variables" may be prefixed with the cross compiler
 568 # prefix.  This should NEVER mention any such variable with a list for value.
 569 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 570 # The same but for flags given as Configure options.  These are *additional*
 571 # input, as opposed to the VAR=string option that override the corresponding
 572 # config target attributes
 573 my %useradd = (
 574     CPPDEFINES  => [],
 575     CPPINCLUDES => [],
 576     CPPFLAGS    => [],
 577     CFLAGS      => [],
 578     CXXFLAGS    => [],
 579     LDFLAGS     => [],
 580     LDLIBS      => [],
 581    );
 582
 583 my %user_synonyms = (
 584     HASHBANGPERL=> 'PERL',
 585     RC          => 'WINDRES',
 586    );
 587
 588 # Some target attributes have been renamed, this is the translation table
 589 my %target_attr_translate =(
 590     ar          => 'AR',
 591     as          => 'AS',
 592     cc          => 'CC',
 593     cxx         => 'CXX',
 594     cpp         => 'CPP',
 595     hashbangperl => 'HASHBANGPERL',
 596     ld          => 'LD',
 597     mt          => 'MT',
 598     ranlib      => 'RANLIB',
 599     rc          => 'RC',
 600     rm          => 'RM',
 601    );
 602
 603 # Initialisers coming from 'config' scripts
 604 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 605 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 606 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 607 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 608 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 609 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 610 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 611
 612 $config{openssl_api_defines}=[];
 613 $config{openssl_sys_defines}=[];
 614 $config{openssl_feature_defines}=[];
 615 $config{options}="";
 616 $config{build_type} = "release";
 617 my $target="";
 618
 619 my %cmdvars = ();               # Stores FOO='blah' type arguments
 620 my %unsupported_options = ();
 621 my %deprecated_options = ();
 622 # If you change this, update apps/version.c
 623 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 624 my @seed_sources = ();
 625 while (@argvcopy)
 626         {
 627         $_ = shift @argvcopy;
 628
 629         # Support env variable assignments among the options
 630         if (m|^(\w+)=(.+)?$|)
 631                 {
 632                 $cmdvars{$1} = $2;
 633                 # Every time a variable is given as a configuration argument,
 634                 # it acts as a reset if the variable.
 635                 if (exists $user{$1})
 636                         {
 637                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 638                         }
 639                 #if (exists $useradd{$1})
 640                 #       {
 641                 #       $useradd{$1} = [];
 642                 #       }
 643                 next;
 644                 }
 645
 646         # VMS is a case insensitive environment, and depending on settings
 647         # out of our control, we may receive options uppercased.  Let's
 648         # downcase at least the part before any equal sign.
 649         if ($^O eq "VMS")
 650                 {
 651                 s/^([^=]*)/lc($1)/e;
 652                 }
 653
 654         # some people just can't read the instructions, clang people have to...
 655         s/^-no-(?!integrated-as)/no-/;
 656
 657         # rewrite some options in "enable-..." form
 658         s /^-?-?shared$/enable-shared/;
 659         s /^sctp$/enable-sctp/;
 660         s /^threads$/enable-threads/;
 661         s /^zlib$/enable-zlib/;
 662         s /^zlib-dynamic$/enable-zlib-dynamic/;
 663
 664         if (/^(no|disable|enable)-(.+)$/)
 665                 {
 666                 my $word = $2;
 667                 if (!exists $deprecated_disablables{$word}
 668                         && !grep { $word =~ /^${_}$/ } @disablables)
 669                         {
 670                         $unsupported_options{$_} = 1;
 671                         next;
 672                         }
 673                 }
 674         if (/^no-(.+)$/ || /^disable-(.+)$/)
 675                 {
 676                 foreach my $proto ((@tls, @dtls))
 677                         {
 678                         if ($1 eq "$proto-method")
 679                                 {
 680                                 $disabled{"$proto"} = "option($proto-method)";
 681                                 last;
 682                                 }
 683                         }
 684                 if ($1 eq "dtls")
 685                         {
 686                         foreach my $proto (@dtls)
 687                                 {
 688                                 $disabled{$proto} = "option(dtls)";
 689                                 }
 690                         $disabled{"dtls"} = "option(dtls)";
 691                         }
 692                 elsif ($1 eq "ssl")
 693                         {
 694                         # Last one of its kind
 695                         $disabled{"ssl3"} = "option(ssl)";
 696                         }
 697                 elsif ($1 eq "tls")
 698                         {
 699                         # XXX: Tests will fail if all SSL/TLS
 700                         # protocols are disabled.
 701                         foreach my $proto (@tls)
 702                                 {
 703                                 $disabled{$proto} = "option(tls)";
 704                                 }
 705                         }
 706                 elsif ($1 eq "static-engine")
 707                         {
 708                         delete $disabled{"dynamic-engine"};
 709                         }
 710                 elsif ($1 eq "dynamic-engine")
 711                         {
 712                         $disabled{"dynamic-engine"} = "option";
 713                         }
 714                 elsif (exists $deprecated_disablables{$1})
 715                         {
 716                         $deprecated_options{$_} = 1;
 717                         if (defined $deprecated_disablables{$1})
 718                                 {
 719                                 $disabled{$deprecated_disablables{$1}} = "option";
 720                                 }
 721                         }
 722                 else
 723                         {
 724                         $disabled{$1} = "option";
 725                         }
 726                 # No longer an automatic choice
 727                 $auto_threads = 0 if ($1 eq "threads");
 728                 }
 729         elsif (/^enable-(.+)$/)
 730                 {
 731                 if ($1 eq "static-engine")
 732                         {
 733                         $disabled{"dynamic-engine"} = "option";
 734                         }
 735                 elsif ($1 eq "dynamic-engine")
 736                         {
 737                         delete $disabled{"dynamic-engine"};
 738                         }
 739                 elsif ($1 eq "zlib-dynamic")
 740                         {
 741                         delete $disabled{"zlib"};
 742                         }
 743                 my $algo = $1;
 744                 delete $disabled{$algo};
 745
 746                 # No longer an automatic choice
 747                 $auto_threads = 0 if ($1 eq "threads");
 748                 }
 749         elsif (/^--strict-warnings$/)
 750                 {
 751                 $strict_warnings = 1;
 752                 }
 753         elsif (/^--debug$/)
 754                 {
 755                 $config{build_type} = "debug";
 756                 }
 757         elsif (/^--release$/)
 758                 {
 759                 $config{build_type} = "release";
 760                 }
 761         elsif (/^386$/)
 762                 { $config{processor}=386; }
 763         elsif (/^fips$/)
 764                 {
 765                 die "FIPS mode not supported\n";
 766                 }
 767         elsif (/^rsaref$/)
 768                 {
 769                 # No RSAref support any more since it's not needed.
 770                 # The check for the option is there so scripts aren't
 771                 # broken
 772                 }
 773         elsif (/^nofipscanistercheck$/)
 774                 {
 775                 die "FIPS mode not supported\n";
 776                 }
 777         elsif (/^[-+]/)
 778                 {
 779                 if (/^--prefix=(.*)$/)
 780                         {
 781                         $config{prefix}=$1;
 782                         die "Directory given with --prefix MUST be absolute\n"
 783                                 unless file_name_is_absolute($config{prefix});
 784                         }
 785                 elsif (/^--api=(.*)$/)
 786                         {
 787                         $config{api}=$1;
 788                         }
 789                 elsif (/^--libdir=(.*)$/)
 790                         {
 791                         $config{libdir}=$1;
 792                         }
 793                 elsif (/^--openssldir=(.*)$/)
 794                         {
 795                         $config{openssldir}=$1;
 796                         }
 797                 elsif (/^--with-zlib-lib=(.*)$/)
 798                         {
 799                         $withargs{zlib_lib}=$1;
 800                         }
 801                 elsif (/^--with-zlib-include=(.*)$/)
 802                         {
 803                         $withargs{zlib_include}=$1;
 804                         }
 805                 elsif (/^--with-fuzzer-lib=(.*)$/)
 806                         {
 807                         $withargs{fuzzer_lib}=$1;
 808                         }
 809                 elsif (/^--with-fuzzer-include=(.*)$/)
 810                         {
 811                         $withargs{fuzzer_include}=$1;
 812                         }
 813                 elsif (/^--with-rand-seed=(.*)$/)
 814                         {
 815                         foreach my $x (split(m|,|, $1))
 816                             {
 817                             die "Unknown --with-rand-seed choice $x\n"
 818                                 if ! grep { $x eq $_ } @known_seed_sources;
 819                             push @seed_sources, $x;
 820                             }
 821                         }
 822                 elsif (/^--cross-compile-prefix=(.*)$/)
 823                         {
 824                         $user{CROSS_COMPILE}=$1;
 825                         }
 826                 elsif (/^--config=(.*)$/)
 827                         {
 828                         read_config $1;
 829                         }
 830                 elsif (/^-l(.*)$/)
 831                         {
 832                         push @{$useradd{LDLIBS}}, $_;
 833                         }
 834                 elsif (/^-framework$/)
 835                         {
 836                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 837                         }
 838                 elsif (/^-L(.*)$/ or /^-Wl,/)
 839                         {
 840                         push @{$useradd{LDFLAGS}}, $_;
 841                         }
 842                 elsif (/^-rpath$/ or /^-R$/)
 843                         # -rpath is the OSF1 rpath flag
 844                         # -R is the old Solaris rpath flag
 845                         {
 846                         my $rpath = shift(@argvcopy) || "";
 847                         $rpath .= " " if $rpath ne "";
 848                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 849                         }
 850                 elsif (/^-static$/)
 851                         {
 852                         push @{$useradd{LDFLAGS}}, $_;
 853                         $disabled{"dso"} = "forced";
 854                         $disabled{"pic"} = "forced";
 855                         $disabled{"shared"} = "forced";
 856                         $disabled{"threads"} = "forced";
 857                         }
 858                 elsif (/^-D(.*)$/)
 859                         {
 860                         push @{$useradd{CPPDEFINES}}, $1;
 861                         }
 862                 elsif (/^-I(.*)$/)
 863                         {
 864                         push @{$useradd{CPPINCLUDES}}, $1;
 865                         }
 866                 elsif (/^-Wp,$/)
 867                         {
 868                         push @{$useradd{CPPFLAGS}}, $1;
 869                         }
 870                 else    # common if (/^[-+]/), just pass down...
 871                         {
 872                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 873                         push @{$useradd{CFLAGS}}, $_;
 874                         push @{$useradd{CXXFLAGS}}, $_;
 875                         }
 876                 }
 877         else
 878                 {
 879                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 880                 $target=$_;
 881                 }
 882         unless ($_ eq $target || /^no-/ || /^disable-/)
 883                 {
 884                 # "no-..." follows later after implied deactivations
 885                 # have been derived.  (Don't take this too seriously,
 886                 # we really only write OPTIONS to the Makefile out of
 887                 # nostalgia.)
 888
 889                 if ($config{options} eq "")
 890                         { $config{options} = $_; }
 891                 else
 892                         { $config{options} .= " ".$_; }
 893                 }
 894         }
 895
 896 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 897         die "***** Unsupported api compatibility level: $config{api}\n",
 898 }
 899
 900 if (keys %deprecated_options)
 901         {
 902         warn "***** Deprecated options: ",
 903                 join(", ", keys %deprecated_options), "\n";
 904         }
 905 if (keys %unsupported_options)
 906         {
 907         die "***** Unsupported options: ",
 908                 join(", ", keys %unsupported_options), "\n";
 909         }
 910
 911 # If any %useradd entry has been set, we must check that the "make
 912 # variables" haven't been set.  We start by checking of any %useradd entry
 913 # is set.
 914 if (grep { scalar @$_ > 0 } values %useradd) {
 915     # Hash of env / make variables names.  The possible values are:
 916     # 1 - "make vars"
 917     # 2 - %useradd entry set
 918     # 3 - both set
 919     my %detected_vars =
 920         map { my $v = 0;
 921               $v += 1 if $cmdvars{$_};
 922               $v += 2 if @{$useradd{$_}};
 923               $_ => $v }
 924         keys %useradd;
 925
 926     # If any of the corresponding "make variables" is set, we error
 927     if (grep { $_ & 1 } values %detected_vars) {
 928         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 929                                sort keys %detected_vars);
 930         die <<"_____";
 931 ***** Mixing make variables and additional compiler/linker flags as
 932 ***** configure command line option is not permitted.
 933 ***** Affected make variables: $names
 934 _____
 935     }
 936 }
 937
 938 # Check through all supported command line variables to see if any of them
 939 # were set, and canonicalise the values we got.  If no compiler or linker
 940 # flag or anything else that affects %useradd was set, we also check the
 941 # environment for values.
 942 my $anyuseradd =
 943     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 944 foreach (keys %user) {
 945     my $value = $cmdvars{$_};
 946     $value //= env($_) unless $anyuseradd;
 947     $value //=
 948         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 949     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 950         unless $anyuseradd;
 951
 952     if (defined $value) {
 953         if (ref $user{$_} eq 'ARRAY') {
 954             $user{$_} = [ split /$list_separator_re/, $value ];
 955         } elsif (!defined $user{$_}) {
 956             $user{$_} = $value;
 957         }
 958     }
 959 }
 960
 961 if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
 962     && !$disabled{shared}
 963     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 964     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 965         "***** any of asan, msan or ubsan\n";
 966 }
 967
 968 my @tocheckfor = (keys %disabled);
 969 while (@tocheckfor) {
 970     my %new_tocheckfor = ();
 971     my @cascade_copy = (@disable_cascades);
 972     while (@cascade_copy) {
 973         my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
 974         if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
 975             foreach(grep { !defined($disabled{$_}) } @$descendents) {
 976                 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
 977             }
 978         }
 979     }
 980     @tocheckfor = (keys %new_tocheckfor);
 981 }
 982
 983 our $die = sub { die @_; };
 984 if ($target eq "TABLE") {
 985     local $die = sub { warn @_; };
 986     foreach (sort keys %table) {
 987         print_table_entry($_, "TABLE");
 988     }
 989     exit 0;
 990 }
 991
 992 if ($target eq "LIST") {
 993     foreach (sort keys %table) {
 994         print $_,"\n" unless $table{$_}->{template};
 995     }
 996     exit 0;
 997 }
 998
 999 if ($target eq "HASH") {
1000     local $die = sub { warn @_; };
1001     print "%table = (\n";
1002     foreach (sort keys %table) {
1003         print_table_entry($_, "HASH");
1004     }
1005     exit 0;
1006 }
1007
1008 print "Configuring OpenSSL version $config{full_version} ";
1009 print "for target $target\n";
1010
1011 if (scalar(@seed_sources) == 0) {
1012     print "Using os-specific seed configuration\n";
1013     push @seed_sources, 'os';
1014 }
1015 if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1016     die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1017     warn <<_____ if scalar(@seed_sources) == 1;
1018
1019 ============================== WARNING ===============================
1020 You have selected the --with-rand-seed=none option, which effectively
1021 disables automatic reseeding of the OpenSSL random generator.
1022 All operations depending on the random generator such as creating keys
1023 will not work unless the random generator is seeded manually by the
1024 application.
1025
1026 Please read the 'Note on random number generation' section in the
1027 INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1028 ============================== WARNING ===============================
1029
1030 _____
1031 }
1032 push @{$config{openssl_feature_defines}},
1033      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1034         @seed_sources;
1035
1036 # Backward compatibility?
1037 if ($target =~ m/^CygWin32(-.*)$/) {
1038     $target = "Cygwin".$1;
1039 }
1040
1041 # Support for legacy targets having a name starting with 'debug-'
1042 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1043 if ($d) {
1044     $config{build_type} = "debug";
1045
1046     # If we do not find debug-foo in the table, the target is set to foo.
1047     if (!$table{$target}) {
1048         $target = $t;
1049     }
1050 }
1051
1052 &usage if !$table{$target} || $table{$target}->{template};
1053
1054 $config{target} = $target;
1055 my %target = resolve_config($target);
1056
1057 foreach (keys %target_attr_translate) {
1058     $target{$target_attr_translate{$_}} = $target{$_}
1059         if $target{$_};
1060     delete $target{$_};
1061 }
1062
1063 %target = ( %{$table{DEFAULTS}}, %target );
1064
1065 # Make the flags to build DSOs the same as for shared libraries unless they
1066 # are already defined
1067 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1068 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1069 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1070 {
1071     my $shared_info_pl =
1072         catfile(dirname($0), "Configurations", "shared-info.pl");
1073     my %shared_info = read_eval_file($shared_info_pl);
1074     push @{$target{_conf_fname_int}}, $shared_info_pl;
1075     my $si = $target{shared_target};
1076     while (ref $si ne "HASH") {
1077         last if ! defined $si;
1078         if (ref $si eq "CODE") {
1079             $si = $si->();
1080         } else {
1081             $si = $shared_info{$si};
1082         }
1083     }
1084
1085     # Some of the 'shared_target' values don't have any entried in
1086     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1087     # template knows how to handle this.  That is currently the case for
1088     # Windows and VMS.
1089     if (defined $si) {
1090         # Just as above, copy certain shared_* attributes to the corresponding
1091         # module_ attribute unless the latter is already defined
1092         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1093         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1094         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1095         foreach (sort keys %$si) {
1096             $target{$_} = defined $target{$_}
1097                 ? add($si->{$_})->($target{$_})
1098                 : $si->{$_};
1099         }
1100     }
1101 }
1102
1103 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1104 $config{conf_files} = [ sort keys %conf_files ];
1105
1106 foreach my $feature (@{$target{disable}}) {
1107     if (exists $deprecated_disablables{$feature}) {
1108         warn "***** config $target disables deprecated feature $feature\n";
1109     } elsif (!grep { $feature eq $_ } @disablables) {
1110         die "***** config $target disables unknown feature $feature\n";
1111     }
1112     $disabled{$feature} = 'config';
1113 }
1114 foreach my $feature (@{$target{enable}}) {
1115     if ("default" eq ($disabled{$feature} // "")) {
1116         if (exists $deprecated_disablables{$feature}) {
1117             warn "***** config $target enables deprecated feature $feature\n";
1118         } elsif (!grep { $feature eq $_ } @disablables) {
1119             die "***** config $target enables unknown feature $feature\n";
1120         }
1121         delete $disabled{$feature};
1122     }
1123 }
1124
1125 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1126 $target{cxxflags}//=$target{cflags} if $target{CXX};
1127 $target{exe_extension}="";
1128 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1129                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1130 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1131 $target{def_extension}=".ld";
1132 $target{def_extension}=".def" if $config{target} =~ /^mingw|VC-/;
1133 $target{def_extension}=".opt" if $config{target} =~ /^vms/;
1134 ($target{shared_extension_simple}=$target{shared_extension})
1135     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1136     unless defined($target{shared_extension_simple});
1137 $target{dso_extension}//=$target{shared_extension_simple};
1138 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1139     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1140
1141 # Fill %config with values from %user, and in case those are undefined or
1142 # empty, use values from %target (acting as a default).
1143 foreach (keys %user) {
1144     my $ref_type = ref $user{$_};
1145
1146     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1147     # and a value that's to be coerced into that type.
1148     my $mkvalue = sub {
1149         my $type = shift;
1150         my $value = shift;
1151         my $undef_p = shift;
1152
1153         die "Too many arguments for \$mkvalue" if @_;
1154
1155         while (ref $value eq 'CODE') {
1156             $value = $value->();
1157         }
1158
1159         if ($type eq 'ARRAY') {
1160             return undef unless defined $value;
1161             return undef if ref $value ne 'ARRAY' && !$value;
1162             return undef if ref $value eq 'ARRAY' && !@$value;
1163             return [ $value ] unless ref $value eq 'ARRAY';
1164         }
1165         return undef unless $value;
1166         return $value;
1167     };
1168
1169     $config{$_} =
1170         $mkvalue->($ref_type, $user{$_})
1171         || $mkvalue->($ref_type, $target{$_});
1172     delete $config{$_} unless defined $config{$_};
1173 }
1174
1175 # Allow overriding the build file name
1176 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1177
1178 ######################################################################
1179 # Build up information for skipping certain directories depending on disabled
1180 # features, as well as setting up macros for disabled features.
1181
1182 # This is a tentative database of directories to skip.  Some entries may not
1183 # correspond to anything real, but that's ok, they will simply be ignored.
1184 # The actual processing of these entries is done in the build.info lookup
1185 # loop further down.
1186 #
1187 # The key is a Unix formated path in the source tree, the value is an index
1188 # into %disabled_info, so any existing path gets added to a corresponding
1189 # 'skipped' entry in there with the list of skipped directories.
1190 my %skipdir = ();
1191 my %disabled_info = ();         # For configdata.pm
1192 foreach my $what (sort keys %disabled) {
1193     $config{options} .= " no-$what";
1194
1195     if (!grep { $what eq $_ } ( 'dso', 'threads', 'shared', 'pic',
1196                                 'dynamic-engine', 'makedepend',
1197                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1198         (my $WHAT = uc $what) =~ s|-|_|g;
1199         my $skipdir = $what;
1200
1201         # fix-up crypto/directory name(s)
1202         $skipdir = "ripemd" if $what eq "rmd160";
1203         $skipdir = "whrlpool" if $what eq "whirlpool";
1204
1205         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1206         push @{$config{openssl_feature_defines}}, $macro;
1207
1208         $skipdir{engines} = $what if $what eq 'engine';
1209         $skipdir{"crypto/$skipdir"} = $what
1210             unless $what eq 'async' || $what eq 'err';
1211     }
1212 }
1213
1214 # Make sure build_scheme is consistent.
1215 $target{build_scheme} = [ $target{build_scheme} ]
1216     if ref($target{build_scheme}) ne "ARRAY";
1217
1218 my ($builder, $builder_platform, @builder_opts) =
1219     @{$target{build_scheme}};
1220
1221 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1222                       $builder_platform."-checker.pm")) {
1223     my $checker_path = catfile($srcdir, "Configurations", $checker);
1224     if (-f $checker_path) {
1225         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1226             ? sub { warn $@; } : sub { die $@; };
1227         if (! do $checker_path) {
1228             if ($@) {
1229                 $fn->($@);
1230             } elsif ($!) {
1231                 $fn->($!);
1232             } else {
1233                 $fn->("The detected tools didn't match the platform\n");
1234             }
1235         }
1236         last;
1237     }
1238 }
1239
1240 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1241
1242 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1243         {
1244         push @{$config{cflags}}, "-mno-cygwin";
1245         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1246         push @{$config{shared_ldflag}}, "-mno-cygwin";
1247         }
1248
1249 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1250         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$user{CFLAGS}},
1251                                             @{$useradd{CFLAGS}})) {
1252         # minimally required architecture flags for assembly modules
1253         my $value;
1254         $value = '-mips2' if ($target =~ /mips32/);
1255         $value = '-mips3' if ($target =~ /mips64/);
1256         unshift @{$config{cflags}}, $value;
1257         unshift @{$config{cxxflags}}, $value if $config{CXX};
1258 }
1259
1260 # If threads aren't disabled, check how possible they are
1261 unless ($disabled{threads}) {
1262     if ($auto_threads) {
1263         # Enabled by default, disable it forcibly if unavailable
1264         if ($target{thread_scheme} eq "(unknown)") {
1265             $disabled{threads} = "unavailable";
1266         }
1267     } else {
1268         # The user chose to enable threads explicitly, let's see
1269         # if there's a chance that's possible
1270         if ($target{thread_scheme} eq "(unknown)") {
1271             # If the user asked for "threads" and we don't have internal
1272             # knowledge how to do it, [s]he is expected to provide any
1273             # system-dependent compiler options that are necessary.  We
1274             # can't truly check that the given options are correct, but
1275             # we expect the user to know what [s]He is doing.
1276             if (!@{$user{CFLAGS}} && !@{$useradd{CFLAGS}}
1277                     && !@{$user{CPPDEFINES}} && !@{$useradd{CPPDEFINES}}) {
1278                 die "You asked for multi-threading support, but didn't\n"
1279                     ,"provide any system-specific compiler options\n";
1280             }
1281         }
1282     }
1283 }
1284
1285 # If threads still aren't disabled, add a C macro to ensure the source
1286 # code knows about it.  Any other flag is taken care of by the configs.
1287 unless($disabled{threads}) {
1288     push @{$config{openssl_feature_defines}}, "OPENSSL_THREADS";
1289 }
1290
1291 # With "deprecated" disable all deprecated features.
1292 if (defined($disabled{"deprecated"})) {
1293         $config{api} = $maxapi;
1294 }
1295
1296 my $no_shared_warn=0;
1297 if ($target{shared_target} eq "")
1298         {
1299         $no_shared_warn = 1
1300             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1301         $disabled{shared} = "no-shared-target";
1302         $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1303             "no-shared-target";
1304         }
1305
1306 if ($disabled{"dynamic-engine"}) {
1307         push @{$config{openssl_feature_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1308         $config{dynamic_engines} = 0;
1309 } else {
1310         push @{$config{openssl_feature_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1311         $config{dynamic_engines} = 1;
1312 }
1313
1314 unless ($disabled{asan}) {
1315     push @{$config{cflags}}, "-fsanitize=address";
1316     push @{$config{cxxflags}}, "-fsanitize=address" if $config{CXX};
1317 }
1318
1319 unless ($disabled{ubsan}) {
1320     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1321     # platforms.
1322     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1323     push @{$config{cxxflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all"
1324         if $config{CXX};
1325 }
1326
1327 unless ($disabled{msan}) {
1328   push @{$config{cflags}}, "-fsanitize=memory";
1329   push @{$config{cxxflags}}, "-fsanitize=memory" if $config{CXX};
1330 }
1331
1332 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1333         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1334     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1335     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1336 }
1337 #
1338 # Platform fix-ups
1339 #
1340
1341 # This saves the build files from having to check
1342 if ($disabled{pic})
1343         {
1344         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1345                     shared_defines shared_includes shared_ldflag
1346                     module_cflags module_cxxflags module_cppflags
1347                     module_defines module_includes module_lflags))
1348                 {
1349                 delete $config{$_};
1350                 $target{$_} = "";
1351                 }
1352         }
1353 else
1354         {
1355         push @{$config{lib_defines}}, "OPENSSL_PIC";
1356         }
1357
1358 if ($target{sys_id} ne "")
1359         {
1360         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1361         }
1362
1363 unless ($disabled{asm}) {
1364     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1365     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1366
1367     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1368
1369     # bn-586 is the only one implementing bn_*_part_words
1370     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1371     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1372
1373     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1374     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1375     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1376     push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1377
1378     if ($target{sha1_asm_src}) {
1379         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1380         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1381         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1382     }
1383     if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1384         push @{$config{lib_defines}}, "KECCAK1600_ASM";
1385     }
1386     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1387         push @{$config{lib_defines}}, "RC4_ASM";
1388     }
1389     if ($target{md5_asm_src}) {
1390         push @{$config{lib_defines}}, "MD5_ASM";
1391     }
1392     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1393     if ($target{rmd160_asm_src}) {
1394         push @{$config{lib_defines}}, "RMD160_ASM";
1395     }
1396     if ($target{aes_asm_src}) {
1397         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1398         # aes-ctr.fake is not a real file, only indication that assembler
1399         # module implements AES_ctr32_encrypt...
1400         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1401         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1402         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1403         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1404         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1405         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1406     }
1407     if ($target{wp_asm_src} =~ /mmx/) {
1408         if ($config{processor} eq "386") {
1409             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1410         } elsif (!$disabled{"whirlpool"}) {
1411             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1412         }
1413     }
1414     if ($target{modes_asm_src} =~ /ghash-/) {
1415         push @{$config{lib_defines}}, "GHASH_ASM";
1416     }
1417     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1418         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1419     }
1420     if ($target{ec_asm_src} =~ /x25519/) {
1421         push @{$config{lib_defines}}, "X25519_ASM";
1422     }
1423     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1424         push @{$config{lib_defines}}, "PADLOCK_ASM";
1425     }
1426     if ($target{poly1305_asm_src} ne "") {
1427         push @{$config{lib_defines}}, "POLY1305_ASM";
1428     }
1429 }
1430
1431 my %predefined = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1432
1433 # Check for makedepend capabilities.
1434 if (!$disabled{makedepend}) {
1435     if ($config{target} =~ /^(VC|vms)-/) {
1436         # For VC- and vms- targets, there's nothing more to do here.  The
1437         # functionality is hard coded in the corresponding build files for
1438         # cl (Windows) and CC/DECC (VMS).
1439     } elsif (($predefined{__GNUC__} // -1) >= 3
1440              && !($predefined{__APPLE_CC__} && !$predefined{__clang__})) {
1441         # We know that GNU C version 3 and up as well as all clang
1442         # versions support dependency generation, but Xcode did not
1443         # handle $cc -M before clang support (but claims __GNUC__ = 3)
1444         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1445     } else {
1446         # In all other cases, we look for 'makedepend', and disable the
1447         # capability if not found.
1448         $config{makedepprog} = which('makedepend');
1449         $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1450     }
1451 }
1452
1453 if (!$disabled{asm} && !$predefined{__MACH__} && $^O ne 'VMS') {
1454     # probe for -Wa,--noexecstack option...
1455     if ($predefined{__clang__}) {
1456         # clang has builtin assembler, which doesn't recognize --help,
1457         # but it apparently recognizes the option in question on all
1458         # supported platforms even when it's meaningless. In other words
1459         # probe would fail, but probed option always accepted...
1460         push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1461     } else {
1462         my $cc = $config{CROSS_COMPILE}.$config{CC};
1463         open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1464         while(<PIPE>) {
1465             if (m/--noexecstack/) {
1466                 push @{$config{cflags}}, "-Wa,--noexecstack";
1467                 last;
1468             }
1469         }
1470         close(PIPE);
1471         unlink("null.$$.o");
1472     }
1473 }
1474
1475 # Deal with bn_ops ###################################################
1476
1477 $config{bn_ll}                  =0;
1478 $config{export_var_as_fn}       =0;
1479 my $def_int="unsigned int";
1480 $config{rc4_int}                =$def_int;
1481 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1482
1483 my $count = 0;
1484 foreach (sort split(/\s+/,$target{bn_ops})) {
1485     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1486     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1487     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1488     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1489     ($config{b64l},$config{b64},$config{b32})
1490         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1491     ($config{b64l},$config{b64},$config{b32})
1492         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1493     ($config{b64l},$config{b64},$config{b32})
1494         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1495 }
1496 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1497     if $count > 1;
1498
1499
1500 # Hack cflags for better warnings (dev option) #######################
1501
1502 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1503 # a string and works as well on command lines.
1504 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1505                         @{$config{cflags}} ];
1506 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1507                           @{$config{cxxflags}} ] if $config{CXX};
1508
1509 $config{openssl_api_defines} = [
1510     "OPENSSL_MIN_API=".($apitable->{$config{api} // ""} // -1)
1511 ];
1512
1513 if ($strict_warnings)
1514         {
1515         my $wopt;
1516         my $gccver = $predefined{__GNUC__} // -1;
1517
1518         die "ERROR --strict-warnings requires gcc[>=4] or gcc-alike"
1519             unless $gccver >= 4;
1520         foreach $wopt (split /\s+/, $gcc_devteam_warn)
1521                 {
1522                 push @{$config{cflags}}, $wopt
1523                         unless grep { $_ eq $wopt } @{$config{cflags}};
1524                 push @{$config{cxxflags}}, $wopt
1525                         if ($config{CXX}
1526                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1527                 }
1528         if (defined($predefined{__clang__}))
1529                 {
1530                 foreach $wopt (split /\s+/, $clang_devteam_warn)
1531                         {
1532                         push @{$config{cflags}}, $wopt
1533                                 unless grep { $_ eq $wopt } @{$config{cflags}};
1534                         push @{$config{cxxflags}}, $wopt
1535                                 if ($config{CXX}
1536                                     && !grep { $_ eq $wopt } @{$config{cxxflags}});
1537                         }
1538                 }
1539         }
1540
1541 unless ($disabled{"crypto-mdebug-backtrace"})
1542         {
1543         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1544                 {
1545                 push @{$config{cflags}}, $wopt
1546                         unless grep { $_ eq $wopt } @{$config{cflags}};
1547                 push @{$config{cxxflags}}, $wopt
1548                         if ($config{CXX}
1549                             && !grep { $_ eq $wopt } @{$config{cxxflags}});
1550                 }
1551         if ($target =~ /^BSD-/)
1552                 {
1553                 push @{$config{ex_libs}}, "-lexecinfo";
1554                 }
1555         }
1556
1557 unless ($disabled{afalgeng}) {
1558     $config{afalgeng}="";
1559     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1560         my $minver = 4*10000 + 1*100 + 0;
1561         if ($config{CROSS_COMPILE} eq "") {
1562             my $verstr = `uname -r`;
1563             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1564             ($mi2) = $mi2 =~ /(\d+)/;
1565             my $ver = $ma*10000 + $mi1*100 + $mi2;
1566             if ($ver < $minver) {
1567                 $disabled{afalgeng} = "too-old-kernel";
1568             } else {
1569                 push @{$config{engdirs}}, "afalg";
1570             }
1571         } else {
1572             $disabled{afalgeng} = "cross-compiling";
1573         }
1574     } else {
1575         $disabled{afalgeng}  = "not-linux";
1576     }
1577 }
1578
1579 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1580
1581 unless ($disabled{ktls}) {
1582     $config{ktls}="";
1583     if ($target =~ m/^linux/) {
1584         my $usr = "/usr/$config{cross_compile_prefix}";
1585         chop($usr);
1586         if ($config{cross_compile_prefix} eq "") {
1587             $usr = "/usr";
1588         }
1589         my $minver = (4 << 16) + (13 << 8) + 0;
1590         my @verstr = split(" ",`cat $usr/include/linux/version.h | grep LINUX_VERSION_CODE`);
1591
1592         if ($verstr[2] < $minver) {
1593             $disabled{ktls} = "too-old-kernel";
1594         }
1595     } else {
1596         $disabled{ktls}  = "not-linux";
1597     }
1598 }
1599
1600 push @{$config{openssl_other_defines}}, "OPENSSL_NO_KTLS" if ($disabled{ktls});
1601
1602 # Finish up %config by appending things the user gave us on the command line
1603 # apart from "make variables"
1604 foreach (keys %useradd) {
1605     # The must all be lists, so we assert that here
1606     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1607         unless ref $useradd{$_} eq 'ARRAY';
1608
1609     if (defined $config{$_}) {
1610         push @{$config{$_}}, @{$useradd{$_}};
1611     } else {
1612         $config{$_} = [ @{$useradd{$_}} ];
1613     }
1614 }
1615
1616 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1617
1618 # If we use the unified build, collect information from build.info files
1619 my %unified_info = ();
1620
1621 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1622 if ($builder eq "unified") {
1623     use with_fallback qw(Text::Template);
1624
1625     sub cleandir {
1626         my $base = shift;
1627         my $dir = shift;
1628         my $relativeto = shift || ".";
1629
1630         $dir = catdir($base,$dir) unless isabsolute($dir);
1631
1632         # Make sure the directories we're building in exists
1633         mkpath($dir);
1634
1635         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1636         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1637         return $res;
1638     }
1639
1640     sub cleanfile {
1641         my $base = shift;
1642         my $file = shift;
1643         my $relativeto = shift || ".";
1644
1645         $file = catfile($base,$file) unless isabsolute($file);
1646
1647         my $d = dirname($file);
1648         my $f = basename($file);
1649
1650         # Make sure the directories we're building in exists
1651         mkpath($d);
1652
1653         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1654         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1655         return $res;
1656     }
1657
1658     # Store the name of the template file we will build the build file from
1659     # in %config.  This may be useful for the build file itself.
1660     my @build_file_template_names =
1661         ( $builder_platform."-".$target{build_file}.".tmpl",
1662           $target{build_file}.".tmpl" );
1663     my @build_file_templates = ();
1664
1665     # First, look in the user provided directory, if given
1666     if (defined env($local_config_envname)) {
1667         @build_file_templates =
1668             map {
1669                 if ($^O eq 'VMS') {
1670                     # VMS environment variables are logical names,
1671                     # which can be used as is
1672                     $local_config_envname . ':' . $_;
1673                 } else {
1674                     catfile(env($local_config_envname), $_);
1675                 }
1676             }
1677             @build_file_template_names;
1678     }
1679     # Then, look in our standard directory
1680     push @build_file_templates,
1681         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1682           @build_file_template_names );
1683
1684     my $build_file_template;
1685     for $_ (@build_file_templates) {
1686         $build_file_template = $_;
1687         last if -f $build_file_template;
1688
1689         $build_file_template = undef;
1690     }
1691     if (!defined $build_file_template) {
1692         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1693     }
1694     $config{build_file_templates}
1695       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1696                     $blddir),
1697           $build_file_template,
1698           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1699                     $blddir) ];
1700
1701     my @build_dirs = ( [ ] );   # current directory
1702
1703     $config{build_infos} = [ ];
1704
1705     my %ordinals = ();
1706     while (@build_dirs) {
1707         my @curd = @{shift @build_dirs};
1708         my $sourced = catdir($srcdir, @curd);
1709         my $buildd = catdir($blddir, @curd);
1710
1711         my $unixdir = join('/', @curd);
1712         if (exists $skipdir{$unixdir}) {
1713             my $what = $skipdir{$unixdir};
1714             push @{$disabled_info{$what}->{skipped}}, catdir(@curd);
1715             next;
1716         }
1717
1718         mkpath($buildd);
1719
1720         my $f = 'build.info';
1721         # The basic things we're trying to build
1722         my @programs = ();
1723         my @programs_install = ();
1724         my @libraries = ();
1725         my @libraries_install = ();
1726         my @engines = ();
1727         my @engines_install = ();
1728         my @scripts = ();
1729         my @scripts_install = ();
1730         my @extra = ();
1731         my @overrides = ();
1732         my @intermediates = ();
1733         my @rawlines = ();
1734
1735         my %sources = ();
1736         my %shared_sources = ();
1737         my %includes = ();
1738         my %defines = ();
1739         my %depends = ();
1740         my %renames = ();
1741         my %sharednames = ();
1742         my %generate = ();
1743
1744         # We want to detect configdata.pm in the source tree, so we
1745         # don't use it if the build tree is different.
1746         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1747
1748         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1749         my $template =
1750             Text::Template->new(TYPE => 'FILE',
1751                                 SOURCE => catfile($sourced, $f),
1752                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1753         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1754         my @text =
1755             split /^/m,
1756             $template->fill_in(HASH => { config => \%config,
1757                                          target => \%target,
1758                                          disabled => \%disabled,
1759                                          withargs => \%withargs,
1760                                          builddir => abs2rel($buildd, $blddir),
1761                                          sourcedir => abs2rel($sourced, $blddir),
1762                                          buildtop => abs2rel($blddir, $blddir),
1763                                          sourcetop => abs2rel($srcdir, $blddir) },
1764                                DELIMITERS => [ "{-", "-}" ]);
1765
1766         # The top item of this stack has the following values
1767         # -2 positive already run and we found ELSE (following ELSIF should fail)
1768         # -1 positive already run (skip until ENDIF)
1769         # 0 negatives so far (if we're at a condition, check it)
1770         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1771         # 2 positive ELSE (following ELSIF should fail)
1772         my @skip = ();
1773         collect_information(
1774             collect_from_array([ @text ],
1775                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1776                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1777             # Info we're looking for
1778             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1779             => sub {
1780                 if (! @skip || $skip[$#skip] > 0) {
1781                     push @skip, !! $1;
1782                 } else {
1783                     push @skip, -1;
1784                 }
1785             },
1786             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1787             => sub { die "ELSIF out of scope" if ! @skip;
1788                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1789                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1790                      $skip[$#skip] = !! $1
1791                          if $skip[$#skip] == 0; },
1792             qr/^\s*ELSE\s*$/
1793             => sub { die "ELSE out of scope" if ! @skip;
1794                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1795                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1796             qr/^\s*ENDIF\s*$/
1797             => sub { die "ENDIF out of scope" if ! @skip;
1798                      pop @skip; },
1799             qr/^\s*SUBDIRS\s*=\s*(.*)\s*$/
1800             => sub {
1801                 if (!@skip || $skip[$#skip] > 0) {
1802                     foreach (tokenize($1)) {
1803                         push @build_dirs, [ @curd, splitdir($_, 1) ];
1804                     }
1805                 }
1806             },
1807             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1808             => sub {
1809                 if (!@skip || $skip[$#skip] > 0) {
1810                     my $install = $1;
1811                     my @x = tokenize($2);
1812                     push @programs, @x;
1813                     push @programs_install, @x unless $install;
1814                 }
1815             },
1816             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1817             => sub {
1818                 if (!@skip || $skip[$#skip] > 0) {
1819                     my $install = $1;
1820                     my @x = tokenize($2);
1821                     push @libraries, @x;
1822                     push @libraries_install, @x unless $install;
1823                 }
1824             },
1825             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1826             => sub {
1827                 if (!@skip || $skip[$#skip] > 0) {
1828                     my $install = $1;
1829                     my @x = tokenize($2);
1830                     push @engines, @x;
1831                     push @engines_install, @x unless $install;
1832                 }
1833             },
1834             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1835             => sub {
1836                 if (!@skip || $skip[$#skip] > 0) {
1837                     my $install = $1;
1838                     my @x = tokenize($2);
1839                     push @scripts, @x;
1840                     push @scripts_install, @x unless $install;
1841                 }
1842             },
1843             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1844             => sub { push @extra, tokenize($1)
1845                          if !@skip || $skip[$#skip] > 0 },
1846             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1847             => sub { push @overrides, tokenize($1)
1848                          if !@skip || $skip[$#skip] > 0 },
1849
1850             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1851             => sub { push @{$ordinals{$1}}, tokenize($2)
1852                          if !@skip || $skip[$#skip] > 0 },
1853             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1854             => sub { push @{$sources{$1}}, tokenize($2)
1855                          if !@skip || $skip[$#skip] > 0 },
1856             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1857             => sub { push @{$shared_sources{$1}}, tokenize($2)
1858                          if !@skip || $skip[$#skip] > 0 },
1859             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1860             => sub { push @{$includes{$1}}, tokenize($2)
1861                          if !@skip || $skip[$#skip] > 0 },
1862             qr/^\s*DEFINE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1863             => sub { push @{$defines{$1}}, tokenize($2)
1864                          if !@skip || $skip[$#skip] > 0 },
1865             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1866             => sub { push @{$depends{$1}}, tokenize($2)
1867                          if !@skip || $skip[$#skip] > 0 },
1868             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1869             => sub { push @{$generate{$1}}, $2
1870                          if !@skip || $skip[$#skip] > 0 },
1871             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1872             => sub { push @{$renames{$1}}, tokenize($2)
1873                          if !@skip || $skip[$#skip] > 0 },
1874             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1875             => sub { push @{$sharednames{$1}}, tokenize($2)
1876                          if !@skip || $skip[$#skip] > 0 },
1877             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1878             => sub {
1879                 my $lineiterator = shift;
1880                 my $target_kind = $1;
1881                 while (defined $lineiterator->()) {
1882                     s|\R$||;
1883                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1884                         die "ENDRAW doesn't match BEGINRAW"
1885                             if $1 ne $target_kind;
1886                         last;
1887                     }
1888                     next if @skip && $skip[$#skip] <= 0;
1889                     push @rawlines,  $_
1890                         if ($target_kind eq $target{build_file}
1891                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1892                 }
1893             },
1894             qr/^\s*(?:#.*)?$/ => sub { },
1895             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1896             "BEFORE" => sub {
1897                 if ($buildinfo_debug) {
1898                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1899                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1900                 }
1901             },
1902             "AFTER" => sub {
1903                 if ($buildinfo_debug) {
1904                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1905                 }
1906             },
1907             );
1908         die "runaway IF?" if (@skip);
1909
1910         foreach (keys %renames) {
1911             die "$_ renamed to more than one thing: "
1912                 ,join(" ", @{$renames{$_}}),"\n"
1913                 if scalar @{$renames{$_}} > 1;
1914             my $dest = cleanfile($buildd, $_, $blddir);
1915             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1916             die "$dest renamed to more than one thing: "
1917                 ,$unified_info{rename}->{$dest}, $to
1918                 unless !defined($unified_info{rename}->{$dest})
1919                 or $unified_info{rename}->{$dest} eq $to;
1920             $unified_info{rename}->{$dest} = $to;
1921         }
1922
1923         foreach (@programs) {
1924             my $program = cleanfile($buildd, $_, $blddir);
1925             if ($unified_info{rename}->{$program}) {
1926                 $program = $unified_info{rename}->{$program};
1927             }
1928             $unified_info{programs}->{$program} = 1;
1929         }
1930
1931         foreach (@programs_install) {
1932             my $program = cleanfile($buildd, $_, $blddir);
1933             if ($unified_info{rename}->{$program}) {
1934                 $program = $unified_info{rename}->{$program};
1935             }
1936             $unified_info{install}->{programs}->{$program} = 1;
1937         }
1938
1939         foreach (@libraries) {
1940             my $library = cleanfile($buildd, $_, $blddir);
1941             if ($unified_info{rename}->{$library}) {
1942                 $library = $unified_info{rename}->{$library};
1943             }
1944             $unified_info{libraries}->{$library} = 1;
1945         }
1946
1947         foreach (@libraries_install) {
1948             my $library = cleanfile($buildd, $_, $blddir);
1949             if ($unified_info{rename}->{$library}) {
1950                 $library = $unified_info{rename}->{$library};
1951             }
1952             $unified_info{install}->{libraries}->{$library} = 1;
1953         }
1954
1955         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1956 ENGINES can only be used if configured with 'dynamic-engine'.
1957 This is usually a fault in a build.info file.
1958 EOF
1959         foreach (@engines) {
1960             my $library = cleanfile($buildd, $_, $blddir);
1961             if ($unified_info{rename}->{$library}) {
1962                 $library = $unified_info{rename}->{$library};
1963             }
1964             $unified_info{engines}->{$library} = 1;
1965         }
1966
1967         foreach (@engines_install) {
1968             my $library = cleanfile($buildd, $_, $blddir);
1969             if ($unified_info{rename}->{$library}) {
1970                 $library = $unified_info{rename}->{$library};
1971             }
1972             $unified_info{install}->{engines}->{$library} = 1;
1973         }
1974
1975         foreach (@scripts) {
1976             my $script = cleanfile($buildd, $_, $blddir);
1977             if ($unified_info{rename}->{$script}) {
1978                 $script = $unified_info{rename}->{$script};
1979             }
1980             $unified_info{scripts}->{$script} = 1;
1981         }
1982
1983         foreach (@scripts_install) {
1984             my $script = cleanfile($buildd, $_, $blddir);
1985             if ($unified_info{rename}->{$script}) {
1986                 $script = $unified_info{rename}->{$script};
1987             }
1988             $unified_info{install}->{scripts}->{$script} = 1;
1989         }
1990
1991         foreach (@extra) {
1992             my $extra = cleanfile($buildd, $_, $blddir);
1993             $unified_info{extra}->{$extra} = 1;
1994         }
1995
1996         foreach (@overrides) {
1997             my $override = cleanfile($buildd, $_, $blddir);
1998             $unified_info{overrides}->{$override} = 1;
1999         }
2000
2001         push @{$unified_info{rawlines}}, @rawlines;
2002
2003         unless ($disabled{shared}) {
2004             # Check sharednames.
2005             foreach (keys %sharednames) {
2006                 my $dest = cleanfile($buildd, $_, $blddir);
2007                 if ($unified_info{rename}->{$dest}) {
2008                     $dest = $unified_info{rename}->{$dest};
2009                 }
2010                 die "shared_name for $dest with multiple values: "
2011                     ,join(" ", @{$sharednames{$_}}),"\n"
2012                     if scalar @{$sharednames{$_}} > 1;
2013                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
2014                 die "shared_name found for a library $dest that isn't defined\n"
2015                     unless $unified_info{libraries}->{$dest};
2016                 die "shared_name for $dest with multiple values: "
2017                     ,$unified_info{sharednames}->{$dest}, ", ", $to
2018                     unless !defined($unified_info{sharednames}->{$dest})
2019                     or $unified_info{sharednames}->{$dest} eq $to;
2020                 $unified_info{sharednames}->{$dest} = $to;
2021             }
2022
2023             # Additionally, we set up sharednames for libraries that don't
2024             # have any, as themselves.  Only for libraries that aren't
2025             # explicitly static.
2026             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2027                 if (!defined $unified_info{sharednames}->{$_}) {
2028                     $unified_info{sharednames}->{$_} = $_
2029                 }
2030             }
2031
2032             # Check that we haven't defined any library as both shared and
2033             # explicitly static.  That is forbidden.
2034             my @doubles = ();
2035             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2036                 (my $l = $_) =~ s/\.a$//;
2037                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
2038             }
2039             die "these libraries are both explicitly static and shared:\n  ",
2040                 join(" ", @doubles), "\n"
2041                 if @doubles;
2042         }
2043
2044         foreach (keys %sources) {
2045             my $dest = $_;
2046             my $ddest = cleanfile($buildd, $_, $blddir);
2047             if ($unified_info{rename}->{$ddest}) {
2048                 $ddest = $unified_info{rename}->{$ddest};
2049             }
2050             foreach (@{$sources{$dest}}) {
2051                 my $s = cleanfile($sourced, $_, $blddir);
2052
2053                 # If it isn't in the source tree, we assume it's generated
2054                 # in the build tree
2055                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2056                     $s = cleanfile($buildd, $_, $blddir);
2057                 }
2058                 # We recognise C++, C and asm files
2059                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2060                     my $o = $_;
2061                     $o =~ s/\.[csS]$/.o/; # C and assembler
2062                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2063                     $o = cleanfile($buildd, $o, $blddir);
2064                     $unified_info{sources}->{$ddest}->{$o} = -1;
2065                     $unified_info{sources}->{$o}->{$s} = -1;
2066                 } elsif ($s =~ /\.rc$/) {
2067                     # We also recognise resource files
2068                     my $o = $_;
2069                     $o =~ s/\.rc$/.res/; # Resource configuration
2070                     my $o = cleanfile($buildd, $o, $blddir);
2071                     $unified_info{sources}->{$ddest}->{$o} = -1;
2072                     $unified_info{sources}->{$o}->{$s} = -1;
2073                 } else {
2074                     $unified_info{sources}->{$ddest}->{$s} = 1;
2075                 }
2076             }
2077         }
2078
2079         foreach (keys %shared_sources) {
2080             my $dest = $_;
2081             my $ddest = cleanfile($buildd, $_, $blddir);
2082             if ($unified_info{rename}->{$ddest}) {
2083                 $ddest = $unified_info{rename}->{$ddest};
2084             }
2085             foreach (@{$shared_sources{$dest}}) {
2086                 my $s = cleanfile($sourced, $_, $blddir);
2087
2088                 # If it isn't in the source tree, we assume it's generated
2089                 # in the build tree
2090                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2091                     $s = cleanfile($buildd, $_, $blddir);
2092                 }
2093
2094                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2095                     # We recognise C++, C and asm files
2096                     my $o = $_;
2097                     $o =~ s/\.[csS]$/.o/; # C and assembler
2098                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2099                     $o = cleanfile($buildd, $o, $blddir);
2100                     $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2101                     $unified_info{sources}->{$o}->{$s} = -1;
2102                 } elsif ($s =~ /\.rc$/) {
2103                     # We also recognise resource files
2104                     my $o = $_;
2105                     $o =~ s/\.rc$/.res/; # Resource configuration
2106                     my $o = cleanfile($buildd, $o, $blddir);
2107                     $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2108                     $unified_info{sources}->{$o}->{$s} = -1;
2109                 } elsif ($s =~ /\.ld$/) {
2110                     # We also recognise linker scripts (or corresponding)
2111                     # We know they are generated files
2112                     my $ld = cleanfile($buildd, $_, $blddir);
2113                     $unified_info{shared_sources}->{$ddest}->{$ld} = 1;
2114                 } else {
2115                     die "unrecognised source file type for shared library: $s\n";
2116                 }
2117             }
2118         }
2119
2120         foreach (keys %generate) {
2121             my $dest = $_;
2122             my $ddest = cleanfile($buildd, $_, $blddir);
2123             if ($unified_info{rename}->{$ddest}) {
2124                 $ddest = $unified_info{rename}->{$ddest};
2125             }
2126             die "more than one generator for $dest: "
2127                     ,join(" ", @{$generate{$_}}),"\n"
2128                     if scalar @{$generate{$_}} > 1;
2129             my @generator = split /\s+/, $generate{$dest}->[0];
2130             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2131             $unified_info{generate}->{$ddest} = [ @generator ];
2132         }
2133
2134         foreach (keys %depends) {
2135             my $dest = $_;
2136             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2137
2138             # If the destination doesn't exist in source, it can only be
2139             # a generated file in the build tree.
2140             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2141                 $ddest = cleanfile($buildd, $_, $blddir);
2142                 if ($unified_info{rename}->{$ddest}) {
2143                     $ddest = $unified_info{rename}->{$ddest};
2144                 }
2145             }
2146             foreach (@{$depends{$dest}}) {
2147                 my $d = cleanfile($sourced, $_, $blddir);
2148
2149                 # If we know it's generated, or assume it is because we can't
2150                 # find it in the source tree, we set file we depend on to be
2151                 # in the build tree rather than the source tree, and assume
2152                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2153                 # section or in the Makefile template.
2154                 if ($d eq $src_configdata
2155                     || ! -f $d
2156                     || (grep { $d eq $_ }
2157                         map { cleanfile($srcdir, $_, $blddir) }
2158                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2159                     $d = cleanfile($buildd, $_, $blddir);
2160                 }
2161                 # Take note if the file to depend on is being renamed
2162                 # Take extra care with files ending with .a, they should
2163                 # be treated without that extension, and the extension
2164                 # should be added back after treatment.
2165                 $d =~ /(\.a)?$/;
2166                 my $e = $1 // "";
2167                 $d = $`;
2168                 if ($unified_info{rename}->{$d}) {
2169                     $d = $unified_info{rename}->{$d};
2170                 }
2171                 $d .= $e;
2172                 $unified_info{depends}->{$ddest}->{$d} = 1;
2173             }
2174         }
2175
2176         foreach (keys %includes) {
2177             my $dest = $_;
2178             my $ddest = cleanfile($sourced, $_, $blddir);
2179
2180             # If the destination doesn't exist in source, it can only be
2181             # a generated file in the build tree.
2182             if ($ddest eq $src_configdata || ! -f $ddest) {
2183                 $ddest = cleanfile($buildd, $_, $blddir);
2184                 if ($unified_info{rename}->{$ddest}) {
2185                     $ddest = $unified_info{rename}->{$ddest};
2186                 }
2187             }
2188             foreach (@{$includes{$dest}}) {
2189                 my $is = cleandir($sourced, $_, $blddir);
2190                 my $ib = cleandir($buildd, $_, $blddir);
2191                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2192                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2193                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2194                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2195             }
2196         }
2197
2198         foreach (keys %defines) {
2199             my $dest = $_;
2200             my $ddest = cleanfile($sourced, $_, $blddir);
2201
2202             # If the destination doesn't exist in source, it can only be
2203             # a generated file in the build tree.
2204             if (! -f $ddest) {
2205                 $ddest = cleanfile($buildd, $_, $blddir);
2206                 if ($unified_info{rename}->{$ddest}) {
2207                     $ddest = $unified_info{rename}->{$ddest};
2208                 }
2209             }
2210             foreach (@{$defines{$dest}}) {
2211                 m|^([^=]*)(=.*)?$|;
2212                 die "0 length macro name not permitted\n" if $1 eq "";
2213                 die "$1 defined more than once\n"
2214                     if defined $unified_info{defines}->{$ddest}->{$1};
2215                 $unified_info{defines}->{$ddest}->{$1} = $2;
2216             }
2217         }
2218     }
2219
2220     my $ordinals_text = join(', ', sort keys %ordinals);
2221     warn <<"EOF" if $ordinals_text;
2222
2223 WARNING: ORDINALS were specified for $ordinals_text
2224 They are ignored and should be replaced with a combination of GENERATE,
2225 DEPEND and SHARED_SOURCE.
2226 EOF
2227
2228     # Massage the result
2229
2230     # If we depend on a header file or a perl module, add an inclusion of
2231     # its directory to allow smoothe inclusion
2232     foreach my $dest (keys %{$unified_info{depends}}) {
2233         next if $dest eq "";
2234         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2235             next unless $d =~ /\.(h|pm)$/;
2236             my $i = dirname($d);
2237             my $spot =
2238                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2239                 ? 'build' : 'source';
2240             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2241                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2242         }
2243     }
2244
2245     # Go through all intermediary files and change their names to something that
2246     # reflects what they will be built for.  Note that for some source files,
2247     # this leads to duplicate object files because they are used multiple times.
2248     # the goal is to rename all object files according to this scheme:
2249     #    {productname}-{midfix}-{origobjname}.[o|res]
2250     # the {midfix} is a keyword indicating the type of product, which is mostly
2251     # valuable for libraries since they come in two forms.
2252     #
2253     # This also reorganises the {sources} and {shared_sources} so that the
2254     # former only contains ALL object files that are supposed to end up in
2255     # static libraries and programs, while the latter contains ALL object files
2256     # that are supposed to end up in shared libraries and DSOs.
2257     # The main reason for having two different source structures is to allow
2258     # the same name to be used for the static and the shared variants of a
2259     # library.
2260     {
2261         # Take copies so we don't get interference from added stuff
2262         my %unified_copy = ();
2263         foreach (('sources', 'shared_sources')) {
2264             $unified_copy{$_} = { %{$unified_info{$_}} }
2265                 if defined($unified_info{$_});
2266             delete $unified_info{$_};
2267         }
2268         foreach my $prodtype (('programs', 'libraries', 'engines', 'scripts')) {
2269             # $intent serves multi purposes:
2270             # - give a prefix for the new object files names
2271             # - in the case of libraries, rearrange the object files so static
2272             #   libraries use the 'sources' structure exclusively, while shared
2273             #   libraries use the 'shared_sources' structure exclusively.
2274             my $intent = {
2275                 programs  => { bin    => { src => [ 'sources' ],
2276                                            dst => 'sources' } },
2277                 libraries => { lib    => { src => [ 'sources' ],
2278                                            dst => 'sources' },
2279                                shlib  => { prodselect =>
2280                                                sub { grep !/\.a$/, @_ },
2281                                            src => [ 'sources',
2282                                                     'shared_sources' ],
2283                                            dst => 'shared_sources' } },
2284                 engines   => { dso    => { src => [ 'sources',
2285                                                     'shared_sources' ],
2286                                            dst => 'shared_sources' } },
2287                 scripts   => { script => { src => [ 'sources' ],
2288                                            dst => 'sources' } }
2289                } -> {$prodtype};
2290             foreach my $kind (keys %$intent) {
2291                 next if ($intent->{$kind}->{dst} eq 'shared_sources'
2292                              && $disabled{shared});
2293
2294                 my @src = @{$intent->{$kind}->{src}};
2295                 my $dst = $intent->{$kind}->{dst};
2296                 my $prodselect = $intent->{$kind}->{prodselect} // sub { @_ };
2297                 foreach my $prod ($prodselect->(keys %{$unified_info{$prodtype}})) {
2298                     # %prod_sources has all applicable objects as keys, and
2299                     # their corresponding sources as values
2300                     my %prod_sources =
2301                         map { $_ => [ keys %{$unified_copy{sources}->{$_}} ] }
2302                         map { keys %{$unified_copy{$_}->{$prod}} }
2303                         @src;
2304                     foreach (keys %prod_sources) {
2305                         # Only affect object files and resource files,
2306                         # the others simply get a new value
2307                         # (+1 instead of -1)
2308                         if ($_ =~ /\.(o|res)$/) {
2309                             (my $prodname = $prod) =~ s|\.a$||;
2310                             my $newobj =
2311                                 catfile(dirname($_),
2312                                         basename($prodname)
2313                                             . '-' . $kind
2314                                             . '-' . basename($_));
2315                             $unified_info{$dst}->{$prod}->{$newobj} = 1;
2316                             foreach my $src (@{$prod_sources{$_}}) {
2317                                 $unified_info{sources}->{$newobj}->{$src} = 1;
2318                             }
2319                             # Adjust dependencies
2320                             foreach my $deps (keys %{$unified_info{depends}->{$_}}) {
2321                                 $unified_info{depends}->{$_}->{$deps} = -1;
2322                                 $unified_info{depends}->{$newobj}->{$deps} = 1;
2323                             }
2324                             # Adjust includes
2325                             foreach my $k (('source', 'build')) {
2326                                 next unless
2327                                     defined($unified_info{includes}->{$_}->{$k});
2328                                 my @incs = @{$unified_info{includes}->{$_}->{$k}};
2329                                 $unified_info{includes}->{$newobj}->{$k} = [ @incs ];
2330                             }
2331                         } else {
2332                             $unified_info{$dst}->{$prod}->{$_} = 1;
2333                         }
2334                     }
2335                 }
2336             }
2337         }
2338     }
2339     # At this point, we have a number of sources with the value -1.  They
2340     # aren't part of the local build and are probably meant for a different
2341     # platform, and can therefore be cleaned away.  That happens when making
2342     # %unified_info more efficient below.
2343
2344     ### Make unified_info a bit more efficient
2345     # One level structures
2346     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2347         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2348     }
2349     # Two level structures
2350     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2351         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2352             my @items =
2353                 sort
2354                 grep { $unified_info{$l1}->{$l2}->{$_} > 0 }
2355                 keys %{$unified_info{$l1}->{$l2}};
2356             if (@items) {
2357                 $unified_info{$l1}->{$l2} = [ @items ];
2358             } else {
2359                 delete $unified_info{$l1}->{$l2};
2360             }
2361         }
2362     }
2363     # Defines
2364     foreach my $dest (sort keys %{$unified_info{defines}}) {
2365         $unified_info{defines}->{$dest}
2366             = [ map { $_.$unified_info{defines}->{$dest}->{$_} }
2367                 sort keys %{$unified_info{defines}->{$dest}} ];
2368     }
2369     # Includes
2370     foreach my $dest (sort keys %{$unified_info{includes}}) {
2371         if (defined($unified_info{includes}->{$dest}->{build})) {
2372             my @source_includes = ();
2373             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2374                 if defined($unified_info{includes}->{$dest}->{source});
2375             $unified_info{includes}->{$dest} =
2376                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2377             foreach my $inc (@source_includes) {
2378                 push @{$unified_info{includes}->{$dest}}, $inc
2379                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2380             }
2381         } elsif (defined($unified_info{includes}->{$dest}->{source})) {
2382             $unified_info{includes}->{$dest} =
2383                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2384         } else {
2385             delete $unified_info{includes}->{$dest};
2386         }
2387     }
2388
2389     # For convenience collect information regarding directories where
2390     # files are generated, those generated files and the end product
2391     # they end up in where applicable.  Then, add build rules for those
2392     # directories
2393     my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2394                      "dso" => [ @{$unified_info{engines}} ],
2395                      "bin" => [ @{$unified_info{programs}} ],
2396                      "script" => [ @{$unified_info{scripts}} ] );
2397     foreach my $type (keys %loopinfo) {
2398         foreach my $product (@{$loopinfo{$type}}) {
2399             my %dirs = ();
2400             my $pd = dirname($product);
2401
2402             foreach (@{$unified_info{sources}->{$product} // []},
2403                      @{$unified_info{shared_sources}->{$product} // []}) {
2404                 my $d = dirname($_);
2405
2406                 # We don't want to create targets for source directories
2407                 # when building out of source
2408                 next if ($config{sourcedir} ne $config{builddir}
2409                              && $d =~ m|^\Q$config{sourcedir}\E|);
2410                 # We already have a "test" target, and the current directory
2411                 # is just silly to make a target for
2412                 next if $d eq "test" || $d eq ".";
2413
2414                 $dirs{$d} = 1;
2415                 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2416                     if $d ne $pd;
2417             }
2418             foreach (keys %dirs) {
2419                 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2420                     $product;
2421             }
2422         }
2423     }
2424 }
2425
2426 # For the schemes that need it, we provide the old *_obj configs
2427 # from the *_asm_obj ones
2428 foreach (grep /_(asm|aux)_src$/, keys %target) {
2429     my $src = $_;
2430     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2431     $target{$obj} = $target{$src};
2432     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2433     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2434 }
2435
2436 # Write down our configuration where it fits #########################
2437
2438 print "Creating configdata.pm\n";
2439 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2440 print OUT <<"EOF";
2441 #! $config{HASHBANGPERL}
2442
2443 package configdata;
2444
2445 use strict;
2446 use warnings;
2447
2448 use Exporter;
2449 #use vars qw(\@ISA \@EXPORT);
2450 our \@ISA = qw(Exporter);
2451 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2452
2453 EOF
2454 print OUT "our %config = (\n";
2455 foreach (sort keys %config) {
2456     if (ref($config{$_}) eq "ARRAY") {
2457         print OUT "  ", $_, " => [ ", join(", ",
2458                                            map { quotify("perl", $_) }
2459                                            @{$config{$_}}), " ],\n";
2460     } elsif (ref($config{$_}) eq "HASH") {
2461         print OUT "  ", $_, " => {";
2462         if (scalar keys %{$config{$_}} > 0) {
2463             print OUT "\n";
2464             foreach my $key (sort keys %{$config{$_}}) {
2465                 print OUT "      ",
2466                     join(" => ",
2467                          quotify("perl", $key),
2468                          defined $config{$_}->{$key}
2469                              ? quotify("perl", $config{$_}->{$key})
2470                              : "undef");
2471                 print OUT ",\n";
2472             }
2473             print OUT "  ";
2474         }
2475         print OUT "},\n";
2476     } else {
2477         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2478     }
2479 }
2480 print OUT <<"EOF";
2481 );
2482
2483 EOF
2484 print OUT "our %target = (\n";
2485 foreach (sort keys %target) {
2486     if (ref($target{$_}) eq "ARRAY") {
2487         print OUT "  ", $_, " => [ ", join(", ",
2488                                            map { quotify("perl", $_) }
2489                                            @{$target{$_}}), " ],\n";
2490     } else {
2491         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2492     }
2493 }
2494 print OUT <<"EOF";
2495 );
2496
2497 EOF
2498 print OUT "our \%available_protocols = (\n";
2499 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2500 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2501 print OUT <<"EOF";
2502 );
2503
2504 EOF
2505 print OUT "our \@disablables = (\n";
2506 foreach (@disablables) {
2507     print OUT "  ", quotify("perl", $_), ",\n";
2508 }
2509 print OUT <<"EOF";
2510 );
2511
2512 EOF
2513 print OUT "our \%disabled = (\n";
2514 foreach (sort keys %disabled) {
2515     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2516 }
2517 print OUT <<"EOF";
2518 );
2519
2520 EOF
2521 print OUT "our %withargs = (\n";
2522 foreach (sort keys %withargs) {
2523     if (ref($withargs{$_}) eq "ARRAY") {
2524         print OUT "  ", $_, " => [ ", join(", ",
2525                                            map { quotify("perl", $_) }
2526                                            @{$withargs{$_}}), " ],\n";
2527     } else {
2528         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2529     }
2530 }
2531 print OUT <<"EOF";
2532 );
2533
2534 EOF
2535 if ($builder eq "unified") {
2536     my $recurse;
2537     $recurse = sub {
2538         my $indent = shift;
2539         foreach (@_) {
2540             if (ref $_ eq "ARRAY") {
2541                 print OUT " "x$indent, "[\n";
2542                 foreach (@$_) {
2543                     $recurse->($indent + 4, $_);
2544                 }
2545                 print OUT " "x$indent, "],\n";
2546             } elsif (ref $_ eq "HASH") {
2547                 my %h = %$_;
2548                 print OUT " "x$indent, "{\n";
2549                 foreach (sort keys %h) {
2550                     if (ref $h{$_} eq "") {
2551                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2552                     } else {
2553                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2554                         $recurse->($indent + 8, $h{$_});
2555                     }
2556                 }
2557                 print OUT " "x$indent, "},\n";
2558             } else {
2559                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2560             }
2561         }
2562     };
2563     print OUT "our %unified_info = (\n";
2564     foreach (sort keys %unified_info) {
2565         if (ref $unified_info{$_} eq "") {
2566             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2567         } else {
2568             print OUT " "x4, quotify("perl", $_), " =>\n";
2569             $recurse->(8, $unified_info{$_});
2570         }
2571     }
2572     print OUT <<"EOF";
2573 );
2574
2575 EOF
2576 }
2577 print OUT
2578     "# The following data is only used when this files is use as a script\n";
2579 print OUT "my \@makevars = (\n";
2580 foreach (sort keys %user) {
2581     print OUT "    '",$_,"',\n";
2582 }
2583 print OUT ");\n";
2584 print OUT "my \%disabled_info = (\n";
2585 foreach my $what (sort keys %disabled_info) {
2586     print OUT "    '$what' => {\n";
2587     foreach my $info (sort keys %{$disabled_info{$what}}) {
2588         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2589             print OUT "        $info => [ ",
2590                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2591                 " ],\n";
2592         } else {
2593             print OUT "        $info => '", $disabled_info{$what}->{$info},
2594                 "',\n";
2595         }
2596     }
2597     print OUT "    },\n";
2598 }
2599 print OUT ");\n";
2600 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2601 print OUT << 'EOF';
2602 # If run directly, we can give some answers, and even reconfigure
2603 unless (caller) {
2604     use Getopt::Long;
2605     use File::Spec::Functions;
2606     use File::Basename;
2607     use Pod::Usage;
2608
2609     my $here = dirname($0);
2610
2611     my $dump = undef;
2612     my $cmdline = undef;
2613     my $options = undef;
2614     my $target = undef;
2615     my $envvars = undef;
2616     my $makevars = undef;
2617     my $buildparams = undef;
2618     my $reconf = undef;
2619     my $verbose = undef;
2620     my $help = undef;
2621     my $man = undef;
2622     GetOptions('dump|d'                 => \$dump,
2623                'command-line|c'         => \$cmdline,
2624                'options|o'              => \$options,
2625                'target|t'               => \$target,
2626                'environment|e'          => \$envvars,
2627                'make-variables|m'       => \$makevars,
2628                'build-parameters|b'     => \$buildparams,
2629                'reconfigure|reconf|r'   => \$reconf,
2630                'verbose|v'              => \$verbose,
2631                'help'                   => \$help,
2632                'man'                    => \$man)
2633         or die "Errors in command line arguments\n";
2634
2635     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2636             || $buildparams || $reconf || $verbose || $help || $man) {
2637         print STDERR <<"_____";
2638 You must give at least one option.
2639 For more information, do '$0 --help'
2640 _____
2641         exit(2);
2642     }
2643
2644     if ($help) {
2645         pod2usage(-exitval => 0,
2646                   -verbose => 1);
2647     }
2648     if ($man) {
2649         pod2usage(-exitval => 0,
2650                   -verbose => 2);
2651     }
2652     if ($dump || $cmdline) {
2653         print "\nCommand line (with current working directory = $here):\n\n";
2654         print '    ',join(' ',
2655                           $config{PERL},
2656                           catfile($config{sourcedir}, 'Configure'),
2657                           @{$config{perlargv}}), "\n";
2658         print "\nPerl information:\n\n";
2659         print '    ',$config{perl_cmd},"\n";
2660         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2661     }
2662     if ($dump || $options) {
2663         my $longest = 0;
2664         my $longest2 = 0;
2665         foreach my $what (@disablables) {
2666             $longest = length($what) if $longest < length($what);
2667             $longest2 = length($disabled{$what})
2668                 if $disabled{$what} && $longest2 < length($disabled{$what});
2669         }
2670         print "\nEnabled features:\n\n";
2671         foreach my $what (@disablables) {
2672             print "    $what\n" unless $disabled{$what};
2673         }
2674         print "\nDisabled features:\n\n";
2675         foreach my $what (@disablables) {
2676             if ($disabled{$what}) {
2677                 print "    $what", ' ' x ($longest - length($what) + 1),
2678                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2679                 print $disabled_info{$what}->{macro}
2680                     if $disabled_info{$what}->{macro};
2681                 print ' (skip ',
2682                     join(', ', @{$disabled_info{$what}->{skipped}}),
2683                     ')'
2684                     if $disabled_info{$what}->{skipped};
2685                 print "\n";
2686             }
2687         }
2688     }
2689     if ($dump || $target) {
2690         print "\nConfig target attributes:\n\n";
2691         foreach (sort keys %target) {
2692             next if $_ =~ m|^_| || $_ eq 'template';
2693             my $quotify = sub {
2694                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2695             };
2696             print '    ', $_, ' => ';
2697             if (ref($target{$_}) eq "ARRAY") {
2698                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2699             } else {
2700                 print $quotify->($target{$_}), ",\n"
2701             }
2702         }
2703     }
2704     if ($dump || $envvars) {
2705         print "\nRecorded environment:\n\n";
2706         foreach (sort keys %{$config{perlenv}}) {
2707             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2708         }
2709     }
2710     if ($dump || $makevars) {
2711         print "\nMakevars:\n\n";
2712         foreach my $var (@makevars) {
2713             my $prefix = '';
2714             $prefix = $config{CROSS_COMPILE}
2715                 if grep { $var eq $_ } @user_crossable;
2716             $prefix //= '';
2717             print '    ',$var,' ' x (16 - length $var),'= ',
2718                 (ref $config{$var} eq 'ARRAY'
2719                  ? join(' ', @{$config{$var}})
2720                  : $prefix.$config{$var}),
2721                 "\n"
2722                 if defined $config{$var};
2723         }
2724
2725         my @buildfile = ($config{builddir}, $config{build_file});
2726         unshift @buildfile, $here
2727             unless file_name_is_absolute($config{builddir});
2728         my $buildfile = canonpath(catdir(@buildfile));
2729         print <<"_____";
2730
2731 NOTE: These variables only represent the configuration view.  The build file
2732 template may have processed these variables further, please have a look at the
2733 build file for more exact data:
2734     $buildfile
2735 _____
2736     }
2737     if ($dump || $buildparams) {
2738         my @buildfile = ($config{builddir}, $config{build_file});
2739         unshift @buildfile, $here
2740             unless file_name_is_absolute($config{builddir});
2741         print "\nbuild file:\n\n";
2742         print "    ", canonpath(catfile(@buildfile)),"\n";
2743
2744         print "\nbuild file templates:\n\n";
2745         foreach (@{$config{build_file_templates}}) {
2746             my @tmpl = ($_);
2747             unshift @tmpl, $here
2748                 unless file_name_is_absolute($config{sourcedir});
2749             print '    ',canonpath(catfile(@tmpl)),"\n";
2750         }
2751     }
2752     if ($reconf) {
2753         if ($verbose) {
2754             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2755             foreach (sort keys %{$config{perlenv}}) {
2756                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2757             }
2758         }
2759
2760         chdir $here;
2761         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2762     }
2763 }
2764
2765 1;
2766
2767 __END__
2768
2769 =head1 NAME
2770
2771 configdata.pm - configuration data for OpenSSL builds
2772
2773 =head1 SYNOPSIS
2774
2775 Interactive:
2776
2777   perl configdata.pm [options]
2778
2779 As data bank module:
2780
2781   use configdata;
2782
2783 =head1 DESCRIPTION
2784
2785 This module can be used in two modes, interactively and as a module containing
2786 all the data recorded by OpenSSL's Configure script.
2787
2788 When used interactively, simply run it as any perl script, with at least one
2789 option, and you will get the information you ask for.  See L</OPTIONS> below.
2790
2791 When loaded as a module, you get a few databanks with useful information to
2792 perform build related tasks.  The databanks are:
2793
2794     %config             Configured things.
2795     %target             The OpenSSL config target with all inheritances
2796                         resolved.
2797     %disabled           The features that are disabled.
2798     @disablables        The list of features that can be disabled.
2799     %withargs           All data given through --with-THING options.
2800     %unified_info       All information that was computed from the build.info
2801                         files.
2802
2803 =head1 OPTIONS
2804
2805 =over 4
2806
2807 =item B<--help>
2808
2809 Print a brief help message and exit.
2810
2811 =item B<--man>
2812
2813 Print the manual page and exit.
2814
2815 =item B<--dump> | B<-d>
2816
2817 Print all relevant configuration data.  This is equivalent to B<--command-line>
2818 B<--options> B<--target> B<--environment> B<--make-variables>
2819 B<--build-parameters>.
2820
2821 =item B<--command-line> | B<-c>
2822
2823 Print the current configuration command line.
2824
2825 =item B<--options> | B<-o>
2826
2827 Print the features, both enabled and disabled, and display defined macro and
2828 skipped directories where applicable.
2829
2830 =item B<--target> | B<-t>
2831
2832 Print the config attributes for this config target.
2833
2834 =item B<--environment> | B<-e>
2835
2836 Print the environment variables and their values at the time of configuration.
2837
2838 =item B<--make-variables> | B<-m>
2839
2840 Print the main make variables generated in the current configuration
2841
2842 =item B<--build-parameters> | B<-b>
2843
2844 Print the build parameters, i.e. build file and build file templates.
2845
2846 =item B<--reconfigure> | B<--reconf> | B<-r>
2847
2848 Redo the configuration.
2849
2850 =item B<--verbose> | B<-v>
2851
2852 Verbose output.
2853
2854 =back
2855
2856 =cut
2857
2858 EOF
2859 close(OUT);
2860 if ($builder_platform eq 'unix') {
2861     my $mode = (0755 & ~umask);
2862     chmod $mode, 'configdata.pm'
2863         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2864 }
2865
2866 my %builders = (
2867     unified => sub {
2868         print 'Creating ',$target{build_file},"\n";
2869         run_dofile(catfile($blddir, $target{build_file}),
2870                    @{$config{build_file_templates}});
2871     },
2872     );
2873
2874 $builders{$builder}->($builder_platform, @builder_opts);
2875
2876 $SIG{__DIE__} = $orig_death_handler;
2877
2878 print <<"EOF" if ($disabled{threads} eq "unavailable");
2879
2880 The library could not be configured for supporting multi-threaded
2881 applications as the compiler options required on this system are not known.
2882 See file INSTALL for details if you need multi-threading.
2883 EOF
2884
2885 print <<"EOF" if ($no_shared_warn);
2886
2887 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2888 platform, so we will pretend you gave the option 'no-pic', which also disables
2889 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2890 or position independent code, please let us know (but please first make sure
2891 you have tried with a current version of OpenSSL).
2892 EOF
2893
2894 print <<"EOF";
2895
2896 **********************************************************************
2897 ***                                                                ***
2898 ***   OpenSSL has been successfully configured                     ***
2899 ***                                                                ***
2900 ***   If you encounter a problem while building, please open an    ***
2901 ***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2902 ***   and include the output from the following command:           ***
2903 ***                                                                ***
2904 ***       perl configdata.pm --dump                                ***
2905 ***                                                                ***
2906 ***   (If you are new to OpenSSL, you might want to consult the    ***
2907 ***   'Troubleshooting' section in the INSTALL file first)         ***
2908 ***                                                                ***
2909 **********************************************************************
2910 EOF
2911
2912 exit(0);
2913
2914 ######################################################################
2915 #
2916 # Helpers and utility functions
2917 #
2918
2919 # Death handler, to print a helpful message in case of failure #######
2920 #
2921 sub death_handler {
2922     die @_ if $^S;              # To prevent the added message in eval blocks
2923     my $build_file = $target{build_file} // "build file";
2924     my @message = ( <<"_____", @_ );
2925
2926 Failure!  $build_file wasn't produced.
2927 Please read INSTALL and associated NOTES files.  You may also have to look over
2928 your available compiler tool chain or change your configuration.
2929
2930 _____
2931
2932     # Dying is terminal, so it's ok to reset the signal handler here.
2933     $SIG{__DIE__} = $orig_death_handler;
2934     die @message;
2935 }
2936
2937 # Configuration file reading #########################################
2938
2939 # Note: All of the helper functions are for lazy evaluation.  They all
2940 # return a CODE ref, which will return the intended value when evaluated.
2941 # Thus, whenever there's mention of a returned value, it's about that
2942 # intended value.
2943
2944 # Helper function to implement conditional inheritance depending on the
2945 # value of $disabled{asm}.  Used in inherit_from values as follows:
2946 #
2947 #      inherit_from => [ "template", asm("asm_tmpl") ]
2948 #
2949 sub asm {
2950     my @x = @_;
2951     sub {
2952         $disabled{asm} ? () : @x;
2953     }
2954 }
2955
2956 # Helper function to implement conditional value variants, with a default
2957 # plus additional values based on the value of $config{build_type}.
2958 # Arguments are given in hash table form:
2959 #
2960 #       picker(default => "Basic string: ",
2961 #              debug   => "debug",
2962 #              release => "release")
2963 #
2964 # When configuring with --debug, the resulting string will be
2965 # "Basic string: debug", and when not, it will be "Basic string: release"
2966 #
2967 # This can be used to create variants of sets of flags according to the
2968 # build type:
2969 #
2970 #       cflags => picker(default => "-Wall",
2971 #                        debug   => "-g -O0",
2972 #                        release => "-O3")
2973 #
2974 sub picker {
2975     my %opts = @_;
2976     return sub { add($opts{default} || (),
2977                      $opts{$config{build_type}} || ())->(); }
2978 }
2979
2980 # Helper function to combine several values of different types into one.
2981 # This is useful if you want to combine a string with the result of a
2982 # lazy function, such as:
2983 #
2984 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2985 #
2986 sub combine {
2987     my @stuff = @_;
2988     return sub { add(@stuff)->(); }
2989 }
2990
2991 # Helper function to implement conditional values depending on the value
2992 # of $disabled{threads}.  Can be used as follows:
2993 #
2994 #       cflags => combine("-Wall", threads("-pthread"))
2995 #
2996 sub threads {
2997     my @flags = @_;
2998     return sub { add($disabled{threads} ? () : @flags)->(); }
2999 }
3000
3001 sub shared {
3002     my @flags = @_;
3003     return sub { add($disabled{shared} ? () : @flags)->(); }
3004 }
3005
3006 our $add_called = 0;
3007 # Helper function to implement adding values to already existing configuration
3008 # values.  It handles elements that are ARRAYs, CODEs and scalars
3009 sub _add {
3010     my $separator = shift;
3011
3012     # If there's any ARRAY in the collection of values OR the separator
3013     # is undef, we will return an ARRAY of combined values, otherwise a
3014     # string of joined values with $separator as the separator.
3015     my $found_array = !defined($separator);
3016
3017     my @values =
3018         map {
3019             my $res = $_;
3020             while (ref($res) eq "CODE") {
3021                 $res = $res->();
3022             }
3023             if (defined($res)) {
3024                 if (ref($res) eq "ARRAY") {
3025                     $found_array = 1;
3026                     @$res;
3027                 } else {
3028                     $res;
3029                 }
3030             } else {
3031                 ();
3032             }
3033     } (@_);
3034
3035     $add_called = 1;
3036
3037     if ($found_array) {
3038         [ @values ];
3039     } else {
3040         join($separator, grep { defined($_) && $_ ne "" } @values);
3041     }
3042 }
3043 sub add_before {
3044     my $separator = " ";
3045     if (ref($_[$#_]) eq "HASH") {
3046         my $opts = pop;
3047         $separator = $opts->{separator};
3048     }
3049     my @x = @_;
3050     sub { _add($separator, @x, @_) };
3051 }
3052 sub add {
3053     my $separator = " ";
3054     if (ref($_[$#_]) eq "HASH") {
3055         my $opts = pop;
3056         $separator = $opts->{separator};
3057     }
3058     my @x = @_;
3059     sub { _add($separator, @_, @x) };
3060 }
3061
3062 sub read_eval_file {
3063     my $fname = shift;
3064     my $content;
3065     my @result;
3066
3067     open F, "< $fname" or die "Can't open '$fname': $!\n";
3068     {
3069         undef local $/;
3070         $content = <F>;
3071     }
3072     close F;
3073     {
3074         local $@;
3075
3076         @result = ( eval $content );
3077         warn $@ if $@;
3078     }
3079     return wantarray ? @result : $result[0];
3080 }
3081
3082 # configuration reader, evaluates the input file as a perl script and expects
3083 # it to fill %targets with target configurations.  Those are then added to
3084 # %table.
3085 sub read_config {
3086     my $fname = shift;
3087     my %targets;
3088
3089     {
3090         # Protect certain tables from tampering
3091         local %table = ();
3092
3093         %targets = read_eval_file($fname);
3094     }
3095     my %preexisting = ();
3096     foreach (sort keys %targets) {
3097         $preexisting{$_} = 1 if $table{$_};
3098     }
3099     die <<"EOF",
3100 The following config targets from $fname
3101 shadow pre-existing config targets with the same name:
3102 EOF
3103         map { "  $_\n" } sort keys %preexisting
3104         if %preexisting;
3105
3106
3107     # For each target, check that it's configured with a hash table.
3108     foreach (keys %targets) {
3109         if (ref($targets{$_}) ne "HASH") {
3110             if (ref($targets{$_}) eq "") {
3111                 warn "Deprecated target configuration for $_, ignoring...\n";
3112             } else {
3113                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3114             }
3115             delete $targets{$_};
3116         } else {
3117             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3118         }
3119     }
3120
3121     %table = (%table, %targets);
3122
3123 }
3124
3125 # configuration resolver.  Will only resolve all the lazy evaluation
3126 # codeblocks for the chosen target and all those it inherits from,
3127 # recursively
3128 sub resolve_config {
3129     my $target = shift;
3130     my @breadcrumbs = @_;
3131
3132 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3133
3134     if (grep { $_ eq $target } @breadcrumbs) {
3135         die "inherit_from loop!  target backtrace:\n  "
3136             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3137     }
3138
3139     if (!defined($table{$target})) {
3140         warn "Warning! target $target doesn't exist!\n";
3141         return ();
3142     }
3143     # Recurse through all inheritances.  They will be resolved on the
3144     # fly, so when this operation is done, they will all just be a
3145     # bunch of attributes with string values.
3146     # What we get here, though, are keys with references to lists of
3147     # the combined values of them all.  We will deal with lists after
3148     # this stage is done.
3149     my %combined_inheritance = ();
3150     if ($table{$target}->{inherit_from}) {
3151         my @inherit_from =
3152             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3153         foreach (@inherit_from) {
3154             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3155
3156             # 'template' is a marker that's considered private to
3157             # the config that had it.
3158             delete $inherited_config{template};
3159
3160             foreach (keys %inherited_config) {
3161                 if (!$combined_inheritance{$_}) {
3162                     $combined_inheritance{$_} = [];
3163                 }
3164                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3165             }
3166         }
3167     }
3168
3169     # We won't need inherit_from in this target any more, since we've
3170     # resolved all the inheritances that lead to this
3171     delete $table{$target}->{inherit_from};
3172
3173     # Now is the time to deal with those lists.  Here's the place to
3174     # decide what shall be done with those lists, all based on the
3175     # values of the target we're currently dealing with.
3176     # - If a value is a coderef, it will be executed with the list of
3177     #   inherited values as arguments.
3178     # - If the corresponding key doesn't have a value at all or is the
3179     #   empty string, the inherited value list will be run through the
3180     #   default combiner (below), and the result becomes this target's
3181     #   value.
3182     # - Otherwise, this target's value is assumed to be a string that
3183     #   will simply override the inherited list of values.
3184     my $default_combiner = add();
3185
3186     my %all_keys =
3187         map { $_ => 1 } (keys %combined_inheritance,
3188                          keys %{$table{$target}});
3189
3190     sub process_values {
3191         my $object    = shift;
3192         my $inherited = shift;  # Always a [ list ]
3193         my $target    = shift;
3194         my $entry     = shift;
3195
3196         $add_called = 0;
3197
3198         while(ref($object) eq "CODE") {
3199             $object = $object->(@$inherited);
3200         }
3201         if (!defined($object)) {
3202             return ();
3203         }
3204         elsif (ref($object) eq "ARRAY") {
3205             local $add_called;  # To make sure recursive calls don't affect it
3206             return [ map { process_values($_, $inherited, $target, $entry) }
3207                      @$object ];
3208         } elsif (ref($object) eq "") {
3209             return $object;
3210         } else {
3211             die "cannot handle reference type ",ref($object)
3212                 ," found in target ",$target," -> ",$entry,"\n";
3213         }
3214     }
3215
3216     foreach (sort keys %all_keys) {
3217         my $previous = $combined_inheritance{$_};
3218
3219         # Current target doesn't have a value for the current key?
3220         # Assign it the default combiner, the rest of this loop body
3221         # will handle it just like any other coderef.
3222         if (!exists $table{$target}->{$_}) {
3223             $table{$target}->{$_} = $default_combiner;
3224         }
3225
3226         $table{$target}->{$_} = process_values($table{$target}->{$_},
3227                                                $combined_inheritance{$_},
3228                                                $target, $_);
3229         unless(defined($table{$target}->{$_})) {
3230             delete $table{$target}->{$_};
3231         }
3232 #        if ($extra_checks &&
3233 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3234 #            warn "$_ got replaced in $target\n";
3235 #        }
3236     }
3237
3238     # Finally done, return the result.
3239     return %{$table{$target}};
3240 }
3241
3242 sub usage
3243         {
3244         print STDERR $usage;
3245         print STDERR "\npick os/compiler from:\n";
3246         my $j=0;
3247         my $i;
3248         my $k=0;
3249         foreach $i (sort keys %table)
3250                 {
3251                 next if $table{$i}->{template};
3252                 next if $i =~ /^debug/;
3253                 $k += length($i) + 1;
3254                 if ($k > 78)
3255                         {
3256                         print STDERR "\n";
3257                         $k=length($i);
3258                         }
3259                 print STDERR $i . " ";
3260                 }
3261         foreach $i (sort keys %table)
3262                 {
3263                 next if $table{$i}->{template};
3264                 next if $i !~ /^debug/;
3265                 $k += length($i) + 1;
3266                 if ($k > 78)
3267                         {
3268                         print STDERR "\n";
3269                         $k=length($i);
3270                         }
3271                 print STDERR $i . " ";
3272                 }
3273         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3274         exit(1);
3275         }
3276
3277 sub run_dofile
3278 {
3279     my $out = shift;
3280     my @templates = @_;
3281
3282     unlink $out || warn "Can't remove $out, $!"
3283         if -f $out;
3284     foreach (@templates) {
3285         die "Can't open $_, $!" unless -f $_;
3286     }
3287     my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3288     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3289     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3290     system($cmd);
3291     exit 1 if $? != 0;
3292     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3293 }
3294
3295 sub compiler_predefined {
3296     state %predefined;
3297     my $cc = shift;
3298
3299     return () if $^O eq 'VMS';
3300
3301     die 'compiler_predefined called without a compiler command'
3302         unless $cc;
3303
3304     if (! $predefined{$cc}) {
3305
3306         $predefined{$cc} = {};
3307
3308         # collect compiler pre-defines from gcc or gcc-alike...
3309         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3310         while (my $l = <PIPE>) {
3311             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3312             $predefined{$cc}->{$1} = $2 // '';
3313         }
3314         close(PIPE);
3315     }
3316
3317     return %{$predefined{$cc}};
3318 }
3319
3320 sub which
3321 {
3322     my ($name)=@_;
3323
3324     if (eval { require IPC::Cmd; 1; }) {
3325         IPC::Cmd->import();
3326         return scalar IPC::Cmd::can_run($name);
3327     } else {
3328         # if there is $directories component in splitpath,
3329         # then it's not something to test with $PATH...
3330         return $name if (File::Spec->splitpath($name))[1];
3331
3332         foreach (File::Spec->path()) {
3333             my $fullpath = catfile($_, "$name$target{exe_extension}");
3334             if (-f $fullpath and -x $fullpath) {
3335                 return $fullpath;
3336             }
3337         }
3338     }
3339 }
3340
3341 sub env
3342 {
3343     my $name = shift;
3344     my %opts = @_;
3345
3346     unless ($opts{cacheonly}) {
3347         # Note that if $ENV{$name} doesn't exist or is undefined,
3348         # $config{perlenv}->{$name} will be created with the value
3349         # undef.  This is intentional.
3350
3351         $config{perlenv}->{$name} = $ENV{$name}
3352             if ! exists $config{perlenv}->{$name};
3353     }
3354     return $config{perlenv}->{$name};
3355 }
3356
3357 # Configuration printer ##############################################
3358
3359 sub print_table_entry
3360 {
3361     local $now_printing = shift;
3362     my %target = resolve_config($now_printing);
3363     my $type = shift;
3364
3365     # Don't print the templates
3366     return if $target{template};
3367
3368     my @sequence = (
3369         "sys_id",
3370         "cpp",
3371         "cppflags",
3372         "defines",
3373         "includes",
3374         "cc",
3375         "cflags",
3376         "unistd",
3377         "ld",
3378         "lflags",
3379         "loutflag",
3380         "ex_libs",
3381         "bn_ops",
3382         "apps_aux_src",
3383         "cpuid_asm_src",
3384         "uplink_aux_src",
3385         "bn_asm_src",
3386         "ec_asm_src",
3387         "des_asm_src",
3388         "aes_asm_src",
3389         "bf_asm_src",
3390         "md5_asm_src",
3391         "cast_asm_src",
3392         "sha1_asm_src",
3393         "rc4_asm_src",
3394         "rmd160_asm_src",
3395         "rc5_asm_src",
3396         "wp_asm_src",
3397         "cmll_asm_src",
3398         "modes_asm_src",
3399         "padlock_asm_src",
3400         "chacha_asm_src",
3401         "poly1035_asm_src",
3402         "thread_scheme",
3403         "perlasm_scheme",
3404         "dso_scheme",
3405         "shared_target",
3406         "shared_cflag",
3407         "shared_defines",
3408         "shared_ldflag",
3409         "shared_rcflag",
3410         "shared_extension",
3411         "dso_extension",
3412         "obj_extension",
3413         "exe_extension",
3414         "ranlib",
3415         "ar",
3416         "arflags",
3417         "aroutflag",
3418         "rc",
3419         "rcflags",
3420         "rcoutflag",
3421         "mt",
3422         "mtflags",
3423         "mtinflag",
3424         "mtoutflag",
3425         "multilib",
3426         "build_scheme",
3427         );
3428
3429     if ($type eq "TABLE") {
3430         print "\n";
3431         print "*** $now_printing\n";
3432         foreach (@sequence) {
3433             if (ref($target{$_}) eq "ARRAY") {
3434                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3435             } else {
3436                 printf "\$%-12s = %s\n", $_, $target{$_};
3437             }
3438         }
3439     } elsif ($type eq "HASH") {
3440         my $largest =
3441             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3442         print "    '$now_printing' => {\n";
3443         foreach (@sequence) {
3444             if ($target{$_}) {
3445                 if (ref($target{$_}) eq "ARRAY") {
3446                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3447                 } else {
3448                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3449                 }
3450             }
3451         }
3452         print "    },\n";
3453     }
3454 }
3455
3456 # Utility routines ###################################################
3457
3458 # On VMS, if the given file is a logical name, File::Spec::Functions
3459 # will consider it an absolute path.  There are cases when we want a
3460 # purely syntactic check without checking the environment.
3461 sub isabsolute {
3462     my $file = shift;
3463
3464     # On non-platforms, we just use file_name_is_absolute().
3465     return file_name_is_absolute($file) unless $^O eq "VMS";
3466
3467     # If the file spec includes a device or a directory spec,
3468     # file_name_is_absolute() is perfectly safe.
3469     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3470
3471     # Here, we know the given file spec isn't absolute
3472     return 0;
3473 }
3474
3475 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3476 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3477 # realpath() requires that at least all path components except the last is an
3478 # existing directory.  On VMS, the last component of the directory spec must
3479 # exist.
3480 sub absolutedir {
3481     my $dir = shift;
3482
3483     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3484     # will return the volume name for the device, no matter what.  Also,
3485     # it will return an incorrect directory spec if the argument is a
3486     # directory that doesn't exist.
3487     if ($^O eq "VMS") {
3488         return rel2abs($dir);
3489     }
3490
3491     # We use realpath() on Unix, since no other will properly clean out
3492     # a directory spec.
3493     use Cwd qw/realpath/;
3494
3495     return realpath($dir);
3496 }
3497
3498 sub quotify {
3499     my %processors = (
3500         perl    => sub { my $x = shift;
3501                          $x =~ s/([\\\$\@"])/\\$1/g;
3502                          return '"'.$x.'"'; },
3503         maybeshell => sub { my $x = shift;
3504                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3505                             if ($x ne $y || $x =~ m|\s|) {
3506                                 return '"'.$y.'"';
3507                             } else {
3508                                 return $x;
3509                             }
3510                         },
3511         );
3512     my $for = shift;
3513     my $processor =
3514         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3515
3516     return map { $processor->($_); } @_;
3517 }
3518
3519 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3520 # $filename is a file name to read from
3521 # $line_concat_cond_re is a regexp detecting a line continuation ending
3522 # $line_concat is a CODEref that takes care of concatenating two lines
3523 sub collect_from_file {
3524     my $filename = shift;
3525     my $line_concat_cond_re = shift;
3526     my $line_concat = shift;
3527
3528     open my $fh, $filename || die "unable to read $filename: $!\n";
3529     return sub {
3530         my $saved_line = "";
3531         $_ = "";
3532         while (<$fh>) {
3533             s|\R$||;
3534             if (defined $line_concat) {
3535                 $_ = $line_concat->($saved_line, $_);
3536                 $saved_line = "";
3537             }
3538             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3539                 $saved_line = $_;
3540                 next;
3541             }
3542             return $_;
3543         }
3544         die "$filename ending with continuation line\n" if $_;
3545         close $fh;
3546         return undef;
3547     }
3548 }
3549
3550 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3551 # $array is an ARRAYref of lines
3552 # $line_concat_cond_re is a regexp detecting a line continuation ending
3553 # $line_concat is a CODEref that takes care of concatenating two lines
3554 sub collect_from_array {
3555     my $array = shift;
3556     my $line_concat_cond_re = shift;
3557     my $line_concat = shift;
3558     my @array = (@$array);
3559
3560     return sub {
3561         my $saved_line = "";
3562         $_ = "";
3563         while (defined($_ = shift @array)) {
3564             s|\R$||;
3565             if (defined $line_concat) {
3566                 $_ = $line_concat->($saved_line, $_);
3567                 $saved_line = "";
3568             }
3569             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3570                 $saved_line = $_;
3571                 next;
3572             }
3573             return $_;
3574         }
3575         die "input text ending with continuation line\n" if $_;
3576         return undef;
3577     }
3578 }
3579
3580 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3581 # $lineiterator is a CODEref that delivers one line at a time.
3582 # All following arguments are regex/CODEref pairs, where the regexp detects a
3583 # line and the CODEref does something with the result of the regexp.
3584 sub collect_information {
3585     my $lineiterator = shift;
3586     my %collectors = @_;
3587
3588     while(defined($_ = $lineiterator->())) {
3589         s|\R$||;
3590         my $found = 0;
3591         if ($collectors{"BEFORE"}) {
3592             $collectors{"BEFORE"}->($_);
3593         }
3594         foreach my $re (keys %collectors) {
3595             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3596                 $collectors{$re}->($lineiterator);
3597                 $found = 1;
3598             };
3599         }
3600         if ($collectors{"OTHERWISE"}) {
3601             $collectors{"OTHERWISE"}->($lineiterator, $_)
3602                 unless $found || !defined $collectors{"OTHERWISE"};
3603         }
3604         if ($collectors{"AFTER"}) {
3605             $collectors{"AFTER"}->($_);
3606         }
3607     }
3608 }
3609
3610 # tokenize($line)
3611 # $line is a line of text to split up into tokens
3612 # returns a list of tokens
3613 #
3614 # Tokens are divided by spaces.  If the tokens include spaces, they
3615 # have to be quoted with single or double quotes.  Double quotes
3616 # inside a double quoted token must be escaped.  Escaping is done
3617 # with backslash.
3618 # Basically, the same quoting rules apply for " and ' as in any
3619 # Unix shell.
3620 sub tokenize {
3621     my $line = my $debug_line = shift;
3622     my @result = ();
3623
3624     while ($line =~ s|^\s+||, $line ne "") {
3625         my $token = "";
3626         while ($line ne "" && $line !~ m|^\s|) {
3627             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3628                 $token .= $1;
3629                 $line = $';
3630             } elsif ($line =~ m/^'([^']*)'/) {
3631                 $token .= $1;
3632                 $line = $';
3633             } elsif ($line =~ m/^(\S+)/) {
3634                 $token .= $1;
3635                 $line = $';
3636             }
3637         }
3638         push @result, $token;
3639     }
3640
3641     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3642         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3643         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3644     }
3645     return @result;
3646 }