Configure

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
   4 #
   5 # Licensed under the OpenSSL license (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/;
  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-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 or 1.1.0.  Do not compile support for
  47 #               interfaces deprecated as of the specified OpenSSL version.
  48 #
  49 # no-hw-xxx     do not compile support for specific crypto hardware.
  50 #               Generic OpenSSL-style methods relating to this support
  51 #               are always compiled but return NULL if the hardware
  52 #               support isn't compiled.
  53 # no-hw         do not compile support for any crypto hardware.
  54 # [no-]threads  [don't] try to create a library that is suitable for
  55 #               multithreaded applications (default is "threads" if we
  56 #               know how to do it)
  57 # [no-]shared   [don't] try to create shared libraries when supported.
  58 # [no-]pic      [don't] try to build position independent code when supported.
  59 #               If disabled, it also disables shared and dynamic-engine.
  60 # no-asm        do not use assembler
  61 # no-egd        do not compile support for the entropy-gathering daemon APIs
  62 # [no-]zlib     [don't] compile support for zlib compression.
  63 # zlib-dynamic  Like "zlib", but the zlib library is expected to be a shared
  64 #               library and will be loaded in run-time by the OpenSSL library.
  65 # sctp          include SCTP support
  66 # enable-weak-ssl-ciphers
  67 #               Enable weak ciphers that are disabled by default.
  68 # 386           generate 80386 code in assembly modules
  69 # no-sse2       disables IA-32 SSE2 code in assembly modules, the above
  70 #               mentioned '386' option implies this one
  71 # no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
  72 # -<xxx> +<xxx> All options which are unknown to the 'Configure' script are
  73 # /<xxx>        passed through to the compiler. Unix-style options beginning
  74 #               with a '-' or '+' are recognized, as well as Windows-style
  75 #               options beginning with a '/'. If the option contains arguments
  76 #               separated by spaces, then the URL-style notation %20 can be
  77 #               used for the space character in order to avoid having to quote
  78 #               the option. For example, -opt%20arg gets expanded to -opt arg.
  79 #               In fact, any ASCII character can be encoded as %xx using its
  80 #               hexadecimal encoding.
  81 # -static       while -static is also a pass-through compiler option (and
  82 #               as such is limited to environments where it's actually
  83 #               meaningful), it triggers a number configuration options,
  84 #               namely no-pic, no-shared and no-threads. It is
  85 #               argued that the only reason to produce statically linked
  86 #               binaries (and in context it means executables linked with
  87 #               -static flag, and not just executables linked with static
  88 #               libcrypto.a) is to eliminate dependency on specific run-time,
  89 #               a.k.a. libc version. The mentioned config options are meant
  90 #               to achieve just that. Unfortunately on Linux it's impossible
  91 #               to eliminate the dependency completely for openssl executable
  92 #               because of getaddrinfo and gethostbyname calls, which can
  93 #               invoke dynamically loadable library facility anyway to meet
  94 #               the lookup requests. For this reason on Linux statically
  95 #               linked openssl executable has rather debugging value than
  96 #               production quality.
  97 #
  98 # BN_LLONG      use the type 'long long' in crypto/bn/bn.h
  99 # RC4_CHAR      use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
 100 # Following are set automatically by this script
 101 #
 102 # MD5_ASM       use some extra md5 assembler,
 103 # SHA1_ASM      use some extra sha1 assembler, must define L_ENDIAN for x86
 104 # RMD160_ASM    use some extra ripemd160 assembler,
 105 # SHA256_ASM    sha256_block is implemented in assembler
 106 # SHA512_ASM    sha512_block is implemented in assembler
 107 # AES_ASM       AES_[en|de]crypt is implemented in assembler
 108
 109 # Minimum warning options... any contributions to OpenSSL should at least
 110 # get past these.  Note that we only use these with C compilers, not with
 111 # C++ compilers.
 112
 113 # DEBUG_UNUSED enables __owur (warn unused result) checks.
 114 # -DPEDANTIC complements -pedantic and is meant to mask code that
 115 # is not strictly standard-compliant and/or implementation-specific,
 116 # e.g. inline assembly, disregards to alignment requirements, such
 117 # that -pedantic would complain about. Incidentally -DPEDANTIC has
 118 # to be used even in sanitized builds, because sanitizer too is
 119 # supposed to and does take notice of non-standard behaviour. Then
 120 # -pedantic with pre-C9x compiler would also complain about 'long
 121 # long' not being supported. As 64-bit algorithms are common now,
 122 # it grew impossible to resolve this without sizeable additional
 123 # code, so we just tell compiler to be pedantic about everything
 124 # but 'long long' type.
 125
 126 my @gcc_devteam_warn = qw(
 127     -DDEBUG_UNUSED
 128     -DPEDANTIC -pedantic -Wno-long-long
 129     -Wall
 130     -Wextra
 131     -Wno-unused-parameter
 132     -Wno-missing-field-initializers
 133     -Wswitch
 134     -Wsign-compare
 135     -Wshadow
 136     -Wformat
 137     -Wtype-limits
 138     -Wundef
 139     -Werror
 140     -Wmissing-prototypes
 141     -Wstrict-prototypes
 142 );
 143
 144 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 145 # TODO(openssl-team): fix problems and investigate if (at least) the
 146 # following warnings can also be enabled:
 147 #       -Wcast-align
 148 #       -Wunreachable-code -- no, too ugly/compiler-specific
 149 #       -Wlanguage-extension-token -- no, we use asm()
 150 #       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
 151 #       -Wextended-offsetof -- no, needed in CMS ASN1 code
 152 my @clang_devteam_warn = qw(
 153     -Wno-unknown-warning-option
 154     -Wswitch-default
 155     -Wno-parentheses-equality
 156     -Wno-language-extension-token
 157     -Wno-extended-offsetof
 158     -Wconditional-uninitialized
 159     -Wincompatible-pointer-types-discards-qualifiers
 160     -Wmissing-variable-declarations
 161 );
 162
 163 my @cl_devteam_warn = qw(
 164     /WX
 165 );
 166
 167 # This adds backtrace information to the memory leak info.  Is only used
 168 # when crypto-mdebug-backtrace is enabled.
 169 my $memleak_devteam_backtrace = "-rdynamic";
 170
 171 my $strict_warnings = 0;
 172
 173 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
 174 # which would cover all BSD flavors. -pthread applies to them all,
 175 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
 176 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
 177 # which has to be accompanied by explicit -D_THREAD_SAFE and
 178 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
 179 # seems to be sufficient?
 180 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
 181
 182 #
 183 # API compatibility name to version number mapping.
 184 #
 185 my $maxapi = "1.1.0";           # API for "no-deprecated" builds
 186 my $apitable = {
 187     "1.1.0" => "0x10100000L",
 188     "1.0.0" => "0x10000000L",
 189     "0.9.8" => "0x00908000L",
 190 };
 191
 192 our %table = ();
 193 our %config = ();
 194 our %withargs = ();
 195 our $now_printing;      # set to current entry's name in print_table_entry
 196                         # (todo: right thing would be to encapsulate name
 197                         # into %target [class] and make print_table_entry
 198                         # a method)
 199
 200 # Forward declarations ###############################################
 201
 202 # read_config(filename)
 203 #
 204 # Reads a configuration file and populates %table with the contents
 205 # (which the configuration file places in %targets).
 206 sub read_config;
 207
 208 # resolve_config(target)
 209 #
 210 # Resolves all the late evaluations, inheritances and so on for the
 211 # chosen target and any target it inherits from.
 212 sub resolve_config;
 213
 214
 215 # Information collection #############################################
 216
 217 # Unified build supports separate build dir
 218 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
 219 my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
 220 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
 221
 222 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
 223
 224 $config{sourcedir} = abs2rel($srcdir);
 225 $config{builddir} = abs2rel($blddir);
 226
 227 # Collect reconfiguration information if needed
 228 my @argvcopy=@ARGV;
 229
 230 if (grep /^reconf(igure)?$/, @argvcopy) {
 231     die "reconfiguring with other arguments present isn't supported"
 232         if scalar @argvcopy > 1;
 233     if (-f "./configdata.pm") {
 234         my $file = "./configdata.pm";
 235         unless (my $return = do $file) {
 236             die "couldn't parse $file: $@" if $@;
 237             die "couldn't do $file: $!"    unless defined $return;
 238             die "couldn't run $file"       unless $return;
 239         }
 240
 241         @argvcopy = defined($configdata::config{perlargv}) ?
 242             @{$configdata::config{perlargv}} : ();
 243         die "Incorrect data to reconfigure, please do a normal configuration\n"
 244             if (grep(/^reconf/,@argvcopy));
 245         $config{perlenv} = $configdata::config{perlenv} // {};
 246     } else {
 247         die "Insufficient data to reconfigure, please do a normal configuration\n";
 248     }
 249 }
 250
 251 $config{perlargv} = [ @argvcopy ];
 252
 253 # Collect version numbers
 254 $config{version} = "unknown";
 255 $config{version_num} = "unknown";
 256 $config{shlib_version_number} = "unknown";
 257 $config{shlib_version_history} = "unknown";
 258
 259 collect_information(
 260     collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
 261     qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
 262     qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/      => sub { $config{version_num}=$1 },
 263     qr/SHLIB_VERSION_NUMBER *"([^"]+)"/      => sub { $config{shlib_version_number}=$1 },
 264     qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
 265     );
 266 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
 267
 268 ($config{major}, $config{minor})
 269     = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
 270 ($config{shlib_major}, $config{shlib_minor})
 271     = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
 272 die "erroneous version information in opensslv.h: ",
 273     "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
 274     if ($config{major} eq "" || $config{minor} eq ""
 275         || $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");
 276
 277 # Collect target configurations
 278
 279 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
 280 foreach (sort glob($pattern)) {
 281     &read_config($_);
 282 }
 283
 284 if (defined env($local_config_envname)) {
 285     if ($^O eq 'VMS') {
 286         # VMS environment variables are logical names,
 287         # which can be used as is
 288         $pattern = $local_config_envname . ':' . '*.conf';
 289     } else {
 290         $pattern = catfile(env($local_config_envname), '*.conf');
 291     }
 292
 293     foreach (sort glob($pattern)) {
 294         &read_config($_);
 295     }
 296 }
 297
 298 # Save away perl command information
 299 $config{perl_cmd} = $^X;
 300 $config{perl_version} = $Config{version};
 301 $config{perl_archname} = $Config{archname};
 302
 303 $config{prefix}="";
 304 $config{openssldir}="";
 305 $config{processor}="";
 306 $config{libdir}="";
 307 my $auto_threads=1;    # enable threads automatically? true by default
 308 my $default_ranlib;
 309
 310 # Top level directories to build
 311 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "util", "tools", "fuzz" ];
 312 # crypto/ subdirectories to build
 313 $config{sdirs} = [
 314     "objects",
 315     "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2", "siphash", "sm3",
 316     "des", "aes", "rc2", "rc4", "rc5", "idea", "aria", "bf", "cast", "camellia", "seed", "sm4", "chacha", "modes",
 317     "bn", "ec", "rsa", "dsa", "dh", "sm2", "dso", "engine",
 318     "buffer", "bio", "stack", "lhash", "rand", "err",
 319     "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
 320     "cms", "ts", "srp", "cmac", "ct", "async", "kdf", "store"
 321     ];
 322 # test/ subdirectories to build
 323 $config{tdirs} = [ "ossl_shim" ];
 324
 325 # Known TLS and DTLS protocols
 326 my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
 327 my @dtls = qw(dtls1 dtls1_2);
 328
 329 # Explicitly known options that are possible to disable.  They can
 330 # be regexps, and will be used like this: /^no-${option}$/
 331 # For developers: keep it sorted alphabetically
 332
 333 my @disablables = (
 334     "afalgeng",
 335     "aria",
 336     "asan",
 337     "asm",
 338     "async",
 339     "autoalginit",
 340     "autoerrinit",
 341     "autoload-config",
 342     "bf",
 343     "blake2",
 344     "buildtest-c\\+\\+",
 345     "camellia",
 346     "capieng",
 347     "cast",
 348     "chacha",
 349     "cmac",
 350     "cms",
 351     "comp",
 352     "crypto-mdebug",
 353     "crypto-mdebug-backtrace",
 354     "ct",
 355     "deprecated",
 356     "des",
 357     "devcryptoeng",
 358     "dgram",
 359     "dh",
 360     "dsa",
 361     "dso",
 362     "dtls",
 363     "dynamic-engine",
 364     "ec",
 365     "ec2m",
 366     "ecdh",
 367     "ecdsa",
 368     "ec_nistp_64_gcc_128",
 369     "egd",
 370     "engine",
 371     "err",
 372     "external-tests",
 373     "filenames",
 374     "fuzz-libfuzzer",
 375     "fuzz-afl",
 376     "gost",
 377     "heartbeats",
 378     "hw(-.+)?",
 379     "idea",
 380     "makedepend",
 381     "md2",
 382     "md4",
 383     "mdc2",
 384     "msan",
 385     "multiblock",
 386     "nextprotoneg",
 387     "pinshared",
 388     "ocb",
 389     "ocsp",
 390     "pic",
 391     "poly1305",
 392     "posix-io",
 393     "psk",
 394     "rc2",
 395     "rc4",
 396     "rc5",
 397     "rdrand",
 398     "rfc3779",
 399     "rmd160",
 400     "scrypt",
 401     "sctp",
 402     "seed",
 403     "shared",
 404     "siphash",
 405     "sm2",
 406     "sm3",
 407     "sm4",
 408     "sock",
 409     "srp",
 410     "srtp",
 411     "sse2",
 412     "ssl",
 413     "ssl-trace",
 414     "static-engine",
 415     "stdio",
 416     "tests",
 417     "threads",
 418     "tls",
 419     "ts",
 420     "ubsan",
 421     "ui-console",
 422     "unit-test",
 423     "whirlpool",
 424     "weak-ssl-ciphers",
 425     "zlib",
 426     "zlib-dynamic",
 427     );
 428 foreach my $proto ((@tls, @dtls))
 429         {
 430         push(@disablables, $proto);
 431         push(@disablables, "$proto-method") unless $proto eq "tls1_3";
 432         }
 433
 434 my %deprecated_disablables = (
 435     "ssl2" => undef,
 436     "buf-freelists" => undef,
 437     "ripemd" => "rmd160",
 438     "ui" => "ui-console",
 439     );
 440
 441 # All of the following are disabled by default:
 442
 443 our %disabled = ( # "what"         => "comment"
 444                   "asan"                => "default",
 445                   "buildtest-c++"       => "default",
 446                   "crypto-mdebug"       => "default",
 447                   "crypto-mdebug-backtrace" => "default",
 448                   "devcryptoeng"        => "default",
 449                   "ec_nistp_64_gcc_128" => "default",
 450                   "egd"                 => "default",
 451                   "external-tests"      => "default",
 452                   "fuzz-libfuzzer"      => "default",
 453                   "fuzz-afl"            => "default",
 454                   "heartbeats"          => "default",
 455                   "md2"                 => "default",
 456                   "msan"                => "default",
 457                   "rc5"                 => "default",
 458                   "sctp"                => "default",
 459                   "ssl-trace"           => "default",
 460                   "ssl3"                => "default",
 461                   "ssl3-method"         => "default",
 462                   "ubsan"               => "default",
 463                   "unit-test"           => "default",
 464                   "weak-ssl-ciphers"    => "default",
 465                   "zlib"                => "default",
 466                   "zlib-dynamic"        => "default",
 467                 );
 468
 469 # Note: => pair form used for aesthetics, not to truly make a hash table
 470 my @disable_cascades = (
 471     # "what"            => [ "cascade", ... ]
 472     sub { $config{processor} eq "386" }
 473                         => [ "sse2" ],
 474     "ssl"               => [ "ssl3" ],
 475     "ssl3-method"       => [ "ssl3" ],
 476     "zlib"              => [ "zlib-dynamic" ],
 477     "des"               => [ "mdc2" ],
 478     "ec"                => [ "ecdsa", "ecdh" ],
 479
 480     "dgram"             => [ "dtls", "sctp" ],
 481     "sock"              => [ "dgram" ],
 482     "dtls"              => [ @dtls ],
 483     sub { 0 == scalar grep { !$disabled{$_} } @dtls }
 484                         => [ "dtls" ],
 485
 486     "tls"               => [ @tls ],
 487     sub { 0 == scalar grep { !$disabled{$_} } @tls }
 488                         => [ "tls" ],
 489
 490     "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
 491
 492     # Without position independent code, there can be no shared libraries or DSOs
 493     "pic"               => [ "shared" ],
 494     "shared"            => [ "dynamic-engine" ],
 495     "dso"               => [ "dynamic-engine" ],
 496     "engine"            => [ "afalgeng", "devcryptoeng" ],
 497
 498     # no-autoalginit is only useful when building non-shared
 499     "autoalginit"       => [ "shared", "apps" ],
 500
 501     "stdio"             => [ "apps", "capieng", "egd" ],
 502     "apps"              => [ "tests" ],
 503     "tests"             => [ "external-tests" ],
 504     "comp"              => [ "zlib" ],
 505     "ec"                => [ "tls1_3", "sm2" ],
 506     "sm3"               => [ "sm2" ],
 507     sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
 508
 509     sub { !$disabled{"msan"} } => [ "asm" ],
 510     );
 511
 512 # Avoid protocol support holes.  Also disable all versions below N, if version
 513 # N is disabled while N+1 is enabled.
 514 #
 515 my @list = (reverse @tls);
 516 while ((my $first, my $second) = (shift @list, shift @list)) {
 517     last unless @list;
 518     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 519                               => [ @list ] );
 520     unshift @list, $second;
 521 }
 522 my @list = (reverse @dtls);
 523 while ((my $first, my $second) = (shift @list, shift @list)) {
 524     last unless @list;
 525     push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
 526                               => [ @list ] );
 527     unshift @list, $second;
 528 }
 529
 530 # Explicit "no-..." options will be collected in %disabled along with the defaults.
 531 # To remove something from %disabled, use "enable-foo".
 532 # For symmetry, "disable-foo" is a synonym for "no-foo".
 533
 534 &usage if ($#ARGV < 0);
 535
 536 # For the "make variables" CINCLUDES and CDEFINES, we support lists with
 537 # platform specific list separators.  Users from those platforms should
 538 # recognise those separators from how you set up the PATH to find executables.
 539 # The default is the Unix like separator, :, but as an exception, we also
 540 # support the space as separator.
 541 my $list_separator_re =
 542     { VMS           => qr/(?<!\^),/,
 543       MSWin32       => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
 544 # All the "make variables" we support
 545 # Some get pre-populated for the sake of backward compatibility
 546 # (we supported those before the change to "make variable" support.
 547 my %user = (
 548     AR          => env('AR'),
 549     ARFLAGS     => [],
 550     AS          => undef,
 551     ASFLAGS     => [],
 552     CC          => env('CC'),
 553     CFLAGS      => [ env('CFLAGS') || () ],
 554     CXX         => env('CXX'),
 555     CXXFLAGS    => [ env('CXXFLAGS') || () ],
 556     CPP         => undef,
 557     CPPFLAGS    => [ env('CPPFLAGS') || () ],  # -D, -I, -Wp,
 558     CPPDEFINES  => [],  # Alternative for -D
 559     CPPINCLUDES => [],  # Alternative for -I
 560     CROSS_COMPILE => env('CROSS_COMPILE'),
 561     HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
 562     LD          => undef,
 563     LDFLAGS     => [ env('LDFLAGS') || () ],  # -L, -Wl,
 564     LDLIBS      => [ env('LDLIBS') || () ],  # -l
 565     MT          => undef,
 566     MTFLAGS     => [],
 567     PERL        => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
 568     RANLIB      => env('RANLIB'),
 569     RC          => env('RC') || env('WINDRES'),
 570     RCFLAGS     => [ env('RCFLAGS') || () ],
 571     RM          => undef,
 572    );
 573 # Info about what "make variables" may be prefixed with the cross compiler
 574 # prefix.  This should NEVER mention any such variable with a list for value.
 575 my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
 576 # The same but for flags given as Configure options.  These are *additional*
 577 # input, as opposed to the VAR=string option that override the corresponding
 578 # config target attributes
 579 my %useradd = (
 580     CPPDEFINES  => [],
 581     CPPINCLUDES => [],
 582     CPPFLAGS    => [],
 583     CFLAGS      => [],
 584     CXXFLAGS    => [],
 585     LDFLAGS     => [],
 586     LDLIBS      => [],
 587     RCFLAGS     => [],
 588    );
 589
 590 my %user_synonyms = (
 591     HASHBANGPERL=> 'PERL',
 592     RC          => 'WINDRES',
 593    );
 594
 595 # Some target attributes have been renamed, this is the translation table
 596 my %target_attr_translate =(
 597     ar          => 'AR',
 598     as          => 'AS',
 599     cc          => 'CC',
 600     cxx         => 'CXX',
 601     cpp         => 'CPP',
 602     hashbangperl => 'HASHBANGPERL',
 603     ld          => 'LD',
 604     mt          => 'MT',
 605     ranlib      => 'RANLIB',
 606     rc          => 'RC',
 607     rm          => 'RM',
 608    );
 609
 610 # Initialisers coming from 'config' scripts
 611 $config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
 612 $config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
 613 $config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
 614 $config{cflags} = [ env('__CNF_CFLAGS') || () ];
 615 $config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
 616 $config{lflags} = [ env('__CNF_LDFLAGS') || () ];
 617 $config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
 618
 619 $config{openssl_api_defines}=[];
 620 $config{openssl_algorithm_defines}=[];
 621 $config{openssl_thread_defines}=[];
 622 $config{openssl_sys_defines}=[];
 623 $config{openssl_other_defines}=[];
 624 $config{options}="";
 625 $config{build_type} = "release";
 626 my $target="";
 627
 628 my %cmdvars = ();               # Stores FOO='blah' type arguments
 629 my %unsupported_options = ();
 630 my %deprecated_options = ();
 631 # If you change this, update apps/version.c
 632 my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
 633 my @seed_sources = ();
 634 while (@argvcopy)
 635         {
 636         $_ = shift @argvcopy;
 637
 638         # Support env variable assignments among the options
 639         if (m|^(\w+)=(.+)?$|)
 640                 {
 641                 $cmdvars{$1} = $2;
 642                 # Every time a variable is given as a configuration argument,
 643                 # it acts as a reset if the variable.
 644                 if (exists $user{$1})
 645                         {
 646                         $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
 647                         }
 648                 #if (exists $useradd{$1})
 649                 #       {
 650                 #       $useradd{$1} = [];
 651                 #       }
 652                 next;
 653                 }
 654
 655         # VMS is a case insensitive environment, and depending on settings
 656         # out of our control, we may receive options uppercased.  Let's
 657         # downcase at least the part before any equal sign.
 658         if ($^O eq "VMS")
 659                 {
 660                 s/^([^=]*)/lc($1)/e;
 661                 }
 662
 663         # some people just can't read the instructions, clang people have to...
 664         s/^-no-(?!integrated-as)/no-/;
 665
 666         # rewrite some options in "enable-..." form
 667         s /^-?-?shared$/enable-shared/;
 668         s /^sctp$/enable-sctp/;
 669         s /^threads$/enable-threads/;
 670         s /^zlib$/enable-zlib/;
 671         s /^zlib-dynamic$/enable-zlib-dynamic/;
 672
 673         if (/^(no|disable|enable)-(.+)$/)
 674                 {
 675                 my $word = $2;
 676                 if (!exists $deprecated_disablables{$word}
 677                         && !grep { $word =~ /^${_}$/ } @disablables)
 678                         {
 679                         $unsupported_options{$_} = 1;
 680                         next;
 681                         }
 682                 }
 683         if (/^no-(.+)$/ || /^disable-(.+)$/)
 684                 {
 685                 foreach my $proto ((@tls, @dtls))
 686                         {
 687                         if ($1 eq "$proto-method")
 688                                 {
 689                                 $disabled{"$proto"} = "option($proto-method)";
 690                                 last;
 691                                 }
 692                         }
 693                 if ($1 eq "dtls")
 694                         {
 695                         foreach my $proto (@dtls)
 696                                 {
 697                                 $disabled{$proto} = "option(dtls)";
 698                                 }
 699                         $disabled{"dtls"} = "option(dtls)";
 700                         }
 701                 elsif ($1 eq "ssl")
 702                         {
 703                         # Last one of its kind
 704                         $disabled{"ssl3"} = "option(ssl)";
 705                         }
 706                 elsif ($1 eq "tls")
 707                         {
 708                         # XXX: Tests will fail if all SSL/TLS
 709                         # protocols are disabled.
 710                         foreach my $proto (@tls)
 711                                 {
 712                                 $disabled{$proto} = "option(tls)";
 713                                 }
 714                         }
 715                 elsif ($1 eq "static-engine")
 716                         {
 717                         delete $disabled{"dynamic-engine"};
 718                         }
 719                 elsif ($1 eq "dynamic-engine")
 720                         {
 721                         $disabled{"dynamic-engine"} = "option";
 722                         }
 723                 elsif (exists $deprecated_disablables{$1})
 724                         {
 725                         if ($deprecated_disablables{$1} ne "")
 726                                 {
 727                                 $deprecated_options{$_} = 1;
 728                                 if (defined $deprecated_disablables{$1})
 729                                         {
 730                                         $disabled{$deprecated_disablables{$1}} = "option";
 731                                         }
 732                                 }
 733                         }
 734                 else
 735                         {
 736                         $disabled{$1} = "option";
 737                         }
 738                 # No longer an automatic choice
 739                 $auto_threads = 0 if ($1 eq "threads");
 740                 }
 741         elsif (/^enable-(.+)$/)
 742                 {
 743                 if ($1 eq "static-engine")
 744                         {
 745                         $disabled{"dynamic-engine"} = "option";
 746                         }
 747                 elsif ($1 eq "dynamic-engine")
 748                         {
 749                         delete $disabled{"dynamic-engine"};
 750                         }
 751                 elsif ($1 eq "zlib-dynamic")
 752                         {
 753                         delete $disabled{"zlib"};
 754                         }
 755                 my $algo = $1;
 756                 delete $disabled{$algo};
 757
 758                 # No longer an automatic choice
 759                 $auto_threads = 0 if ($1 eq "threads");
 760                 }
 761         elsif (/^--strict-warnings$/)
 762                 {
 763                 # Pretend that our strict flags is a C flag, and replace it
 764                 # with the proper flags later on
 765                 push @{$useradd{CFLAGS}}, '--ossl-strict-warnings';
 766                 $strict_warnings=1;
 767                 }
 768         elsif (/^--debug$/)
 769                 {
 770                 $config{build_type} = "debug";
 771                 }
 772         elsif (/^--release$/)
 773                 {
 774                 $config{build_type} = "release";
 775                 }
 776         elsif (/^386$/)
 777                 { $config{processor}=386; }
 778         elsif (/^fips$/)
 779                 {
 780                 die "FIPS mode not supported\n";
 781                 }
 782         elsif (/^rsaref$/)
 783                 {
 784                 # No RSAref support any more since it's not needed.
 785                 # The check for the option is there so scripts aren't
 786                 # broken
 787                 }
 788         elsif (/^nofipscanistercheck$/)
 789                 {
 790                 die "FIPS mode not supported\n";
 791                 }
 792         elsif (m|^[-+/]|)
 793                 {
 794                 if (/^--prefix=(.*)$/)
 795                         {
 796                         $config{prefix}=$1;
 797                         die "Directory given with --prefix MUST be absolute\n"
 798                                 unless file_name_is_absolute($config{prefix});
 799                         }
 800                 elsif (/^--api=(.*)$/)
 801                         {
 802                         $config{api}=$1;
 803                         }
 804                 elsif (/^--libdir=(.*)$/)
 805                         {
 806                         $config{libdir}=$1;
 807                         }
 808                 elsif (/^--openssldir=(.*)$/)
 809                         {
 810                         $config{openssldir}=$1;
 811                         }
 812                 elsif (/^--with-zlib-lib=(.*)$/)
 813                         {
 814                         $withargs{zlib_lib}=$1;
 815                         }
 816                 elsif (/^--with-zlib-include=(.*)$/)
 817                         {
 818                         $withargs{zlib_include}=$1;
 819                         }
 820                 elsif (/^--with-fuzzer-lib=(.*)$/)
 821                         {
 822                         $withargs{fuzzer_lib}=$1;
 823                         }
 824                 elsif (/^--with-fuzzer-include=(.*)$/)
 825                         {
 826                         $withargs{fuzzer_include}=$1;
 827                         }
 828                 elsif (/^--with-rand-seed=(.*)$/)
 829                         {
 830                         foreach my $x (split(m|,|, $1))
 831                             {
 832                             die "Unknown --with-rand-seed choice $x\n"
 833                                 if ! grep { $x eq $_ } @known_seed_sources;
 834                             push @seed_sources, $x;
 835                             }
 836                         }
 837                 elsif (/^--cross-compile-prefix=(.*)$/)
 838                         {
 839                         $user{CROSS_COMPILE}=$1;
 840                         }
 841                 elsif (/^--config=(.*)$/)
 842                         {
 843                         read_config $1;
 844                         }
 845                 elsif (/^-l(.*)$/)
 846                         {
 847                         push @{$useradd{LDLIBS}}, $_;
 848                         }
 849                 elsif (/^-framework$/)
 850                         {
 851                         push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
 852                         }
 853                 elsif (/^-L(.*)$/ or /^-Wl,/)
 854                         {
 855                         push @{$useradd{LDFLAGS}}, $_;
 856                         }
 857                 elsif (/^-rpath$/ or /^-R$/)
 858                         # -rpath is the OSF1 rpath flag
 859                         # -R is the old Solaris rpath flag
 860                         {
 861                         my $rpath = shift(@argvcopy) || "";
 862                         $rpath .= " " if $rpath ne "";
 863                         push @{$useradd{LDFLAGS}}, $_, $rpath;
 864                         }
 865                 elsif (/^-static$/)
 866                         {
 867                         push @{$useradd{LDFLAGS}}, $_;
 868                         }
 869                 elsif (m|^[-/]D(.*)$|)
 870                         {
 871                         push @{$useradd{CPPDEFINES}}, $1;
 872                         }
 873                 elsif (m|^[-/]I(.*)$|)
 874                         {
 875                         push @{$useradd{CPPINCLUDES}}, $1;
 876                         }
 877                 elsif (/^-Wp,$/)
 878                         {
 879                         push @{$useradd{CPPFLAGS}}, $1;
 880                         }
 881                 else    # common if (/^[-+]/), just pass down...
 882                         {
 883                         # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
 884                         # This provides a simple way to pass options with arguments separated
 885                         # by spaces without quoting (e.g. -opt%20arg translates to -opt arg).
 886                         $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 887                         push @{$useradd{CFLAGS}}, $_;
 888                         push @{$useradd{CXXFLAGS}}, $_;
 889                         }
 890                 }
 891         elsif (m|^/|)
 892                 {
 893                 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
 894                 # This provides a simple way to pass options with arguments separated
 895                 # by spaces without quoting (e.g. /opt%20arg translates to /opt arg).
 896                 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
 897                 push @{$useradd{CFLAGS}}, $_;
 898                 push @{$useradd{CXXFLAGS}}, $_;
 899                 }
 900         else
 901                 {
 902                 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
 903                 $target=$_;
 904                 }
 905         unless ($_ eq $target || /^no-/ || /^disable-/)
 906                 {
 907                 # "no-..." follows later after implied deactivations
 908                 # have been derived.  (Don't take this too seriously,
 909                 # we really only write OPTIONS to the Makefile out of
 910                 # nostalgia.)
 911
 912                 if ($config{options} eq "")
 913                         { $config{options} = $_; }
 914                 else
 915                         { $config{options} .= " ".$_; }
 916                 }
 917         }
 918
 919 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
 920         die "***** Unsupported api compatibility level: $config{api}\n",
 921 }
 922
 923 if (keys %deprecated_options)
 924         {
 925         warn "***** Deprecated options: ",
 926                 join(", ", keys %deprecated_options), "\n";
 927         }
 928 if (keys %unsupported_options)
 929         {
 930         die "***** Unsupported options: ",
 931                 join(", ", keys %unsupported_options), "\n";
 932         }
 933
 934 # If any %useradd entry has been set, we must check that the "make
 935 # variables" haven't been set.  We start by checking of any %useradd entry
 936 # is set.
 937 if (grep { scalar @$_ > 0 } values %useradd) {
 938     # Hash of env / make variables names.  The possible values are:
 939     # 1 - "make vars"
 940     # 2 - %useradd entry set
 941     # 3 - both set
 942     my %detected_vars =
 943         map { my $v = 0;
 944               $v += 1 if $cmdvars{$_};
 945               $v += 2 if @{$useradd{$_}};
 946               $_ => $v }
 947         keys %useradd;
 948
 949     # If any of the corresponding "make variables" is set, we error
 950     if (grep { $_ & 1 } values %detected_vars) {
 951         my $names = join(', ', grep { $detected_vars{$_} > 0 }
 952                                sort keys %detected_vars);
 953         die <<"_____";
 954 ***** Mixing make variables and additional compiler/linker flags as
 955 ***** configure command line option is not permitted.
 956 ***** Affected make variables: $names
 957 _____
 958     }
 959 }
 960
 961 # Check through all supported command line variables to see if any of them
 962 # were set, and canonicalise the values we got.  If no compiler or linker
 963 # flag or anything else that affects %useradd was set, we also check the
 964 # environment for values.
 965 my $anyuseradd =
 966     grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
 967 foreach (keys %user) {
 968     my $value = $cmdvars{$_};
 969     $value //= env($_) unless $anyuseradd;
 970     $value //=
 971         defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
 972     $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
 973         unless $anyuseradd;
 974
 975     if (defined $value) {
 976         if (ref $user{$_} eq 'ARRAY') {
 977             $user{$_} = [ split /$list_separator_re/, $value ];
 978         } elsif (!defined $user{$_}) {
 979             $user{$_} = $value;
 980         }
 981     }
 982 }
 983
 984 if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
 985     && !$disabled{shared}
 986     && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
 987     die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
 988         "***** any of asan, msan or ubsan\n";
 989 }
 990
 991 sub disable {
 992     my $disable_type = shift;
 993
 994     for (@_) {
 995         $disabled{$_} = $disable_type;
 996     }
 997
 998     my @tocheckfor = (@_ ? @_ : keys %disabled);
 999     while (@tocheckfor) {
1000         my %new_tocheckfor = ();
1001         my @cascade_copy = (@disable_cascades);
1002         while (@cascade_copy) {
1003             my ($test, $descendents) =
1004                 (shift @cascade_copy, shift @cascade_copy);
1005             if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
1006                 foreach (grep { !defined($disabled{$_}) } @$descendents) {
1007                     $new_tocheckfor{$_} = 1; $disabled{$_} = "cascade";
1008                 }
1009             }
1010         }
1011         @tocheckfor = (keys %new_tocheckfor);
1012     }
1013 }
1014 disable();                     # First cascade run
1015
1016 our $die = sub { die @_; };
1017 if ($target eq "TABLE") {
1018     local $die = sub { warn @_; };
1019     foreach (sort keys %table) {
1020         print_table_entry($_, "TABLE");
1021     }
1022     exit 0;
1023 }
1024
1025 if ($target eq "LIST") {
1026     foreach (sort keys %table) {
1027         print $_,"\n" unless $table{$_}->{template};
1028     }
1029     exit 0;
1030 }
1031
1032 if ($target eq "HASH") {
1033     local $die = sub { warn @_; };
1034     print "%table = (\n";
1035     foreach (sort keys %table) {
1036         print_table_entry($_, "HASH");
1037     }
1038     exit 0;
1039 }
1040
1041 print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
1042 print "for $target\n";
1043
1044 if (scalar(@seed_sources) == 0) {
1045     print "Using os-specific seed configuration\n";
1046     push @seed_sources, 'os';
1047 }
1048 if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1049     die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1050     warn <<_____ if scalar(@seed_sources) == 1;
1051
1052 ============================== WARNING ===============================
1053 You have selected the --with-rand-seed=none option, which effectively
1054 disables automatic reseeding of the OpenSSL random generator.
1055 All operations depending on the random generator such as creating keys
1056 will not work unless the random generator is seeded manually by the
1057 application.
1058
1059 Please read the 'Note on random number generation' section in the
1060 INSTALL instructions and the RAND_DRBG(7) manual page for more details.
1061 ============================== WARNING ===============================
1062
1063 _____
1064 }
1065 push @{$config{openssl_other_defines}},
1066      map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1067         @seed_sources;
1068
1069 # Backward compatibility?
1070 if ($target =~ m/^CygWin32(-.*)$/) {
1071     $target = "Cygwin".$1;
1072 }
1073
1074 # Support for legacy targets having a name starting with 'debug-'
1075 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1076 if ($d) {
1077     $config{build_type} = "debug";
1078
1079     # If we do not find debug-foo in the table, the target is set to foo.
1080     if (!$table{$target}) {
1081         $target = $t;
1082     }
1083 }
1084
1085 &usage if !$table{$target} || $table{$target}->{template};
1086
1087 $config{target} = $target;
1088 my %target = resolve_config($target);
1089
1090 foreach (keys %target_attr_translate) {
1091     $target{$target_attr_translate{$_}} = $target{$_}
1092         if $target{$_};
1093     delete $target{$_};
1094 }
1095
1096 %target = ( %{$table{DEFAULTS}}, %target );
1097
1098 my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1099 $config{conf_files} = [ sort keys %conf_files ];
1100
1101 # Using sub disable within these loops may prove fragile, so we run
1102 # a cascade afterwards
1103 foreach my $feature (@{$target{disable}}) {
1104     if (exists $deprecated_disablables{$feature}) {
1105         warn "***** config $target disables deprecated feature $feature\n";
1106     } elsif (!grep { $feature eq $_ } @disablables) {
1107         die "***** config $target disables unknown feature $feature\n";
1108     }
1109     $disabled{$feature} = 'config';
1110 }
1111 foreach my $feature (@{$target{enable}}) {
1112     if ("default" eq ($disabled{$feature} // "")) {
1113         if (exists $deprecated_disablables{$feature}) {
1114             warn "***** config $target enables deprecated feature $feature\n";
1115         } elsif (!grep { $feature eq $_ } @disablables) {
1116             die "***** config $target enables unknown feature $feature\n";
1117         }
1118         delete $disabled{$feature};
1119     }
1120 }
1121 disable();                      # Run a cascade now
1122
1123 $target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1124 $target{cxxflags}//=$target{cflags} if $target{CXX};
1125 $target{exe_extension}="";
1126 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
1127                                   || $config{target} =~ /^(?:Cygwin|mingw)/);
1128 $target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
1129
1130 ($target{shared_extension_simple}=$target{shared_extension})
1131     =~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
1132     unless defined($target{shared_extension_simple});
1133 $target{dso_extension}//=$target{shared_extension_simple};
1134 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
1135     if ($config{target} =~ /^(?:Cygwin|mingw)/);
1136
1137 # Fill %config with values from %user, and in case those are undefined or
1138 # empty, use values from %target (acting as a default).
1139 foreach (keys %user) {
1140     my $ref_type = ref $user{$_};
1141
1142     # Temporary function.  Takes an intended ref type (empty string or "ARRAY")
1143     # and a value that's to be coerced into that type.
1144     my $mkvalue = sub {
1145         my $type = shift;
1146         my $value = shift;
1147         my $undef_p = shift;
1148
1149         die "Too many arguments for \$mkvalue" if @_;
1150
1151         while (ref $value eq 'CODE') {
1152             $value = $value->();
1153         }
1154
1155         if ($type eq 'ARRAY') {
1156             return undef unless defined $value;
1157             return undef if ref $value ne 'ARRAY' && !$value;
1158             return undef if ref $value eq 'ARRAY' && !@$value;
1159             return [ $value ] unless ref $value eq 'ARRAY';
1160         }
1161         return undef unless $value;
1162         return $value;
1163     };
1164
1165     $config{$_} =
1166         $mkvalue->($ref_type, $user{$_})
1167         || $mkvalue->($ref_type, $target{$_});
1168     delete $config{$_} unless defined $config{$_};
1169 }
1170
1171 # Finish up %config by appending things the user gave us on the command line
1172 # apart from "make variables"
1173 foreach (keys %useradd) {
1174     # The must all be lists, so we assert that here
1175     die "internal error: \$useradd{$_} isn't an ARRAY\n"
1176         unless ref $useradd{$_} eq 'ARRAY';
1177
1178     if (defined $config{$_}) {
1179         push @{$config{$_}}, @{$useradd{$_}};
1180     } else {
1181         $config{$_} = [ @{$useradd{$_}} ];
1182     }
1183 }
1184 # At this point, we can forget everything about %user and %useradd,
1185 # because it's now all been merged into the corresponding $config entry
1186
1187 # Allow overriding the build file name
1188 $config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1189
1190 my %disabled_info = ();         # For configdata.pm
1191 foreach my $what (sort keys %disabled) {
1192     $config{options} .= " no-$what";
1193
1194     if (!grep { $what eq $_ } ( 'buildtest-c++', 'threads', 'shared', 'pic',
1195                                 'dynamic-engine', 'makedepend',
1196                                 'zlib-dynamic', 'zlib', 'sse2' )) {
1197         (my $WHAT = uc $what) =~ s|-|_|g;
1198
1199         # Fix up C macro end names
1200         $WHAT = "RMD160" if $what eq "ripemd";
1201
1202         # fix-up crypto/directory name(s)
1203         $what = "ripemd" if $what eq "rmd160";
1204         $what = "whrlpool" if $what eq "whirlpool";
1205
1206         my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1207
1208         if ((grep { $what eq $_ } @{$config{sdirs}})
1209                 && $what ne 'async' && $what ne 'err' && $what ne 'dso') {
1210             @{$config{sdirs}} = grep { $what ne $_} @{$config{sdirs}};
1211             $disabled_info{$what}->{skipped} = [ catdir('crypto', $what) ];
1212
1213             if ($what ne 'engine') {
1214                 push @{$config{openssl_algorithm_defines}}, $macro;
1215             } else {
1216                 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
1217                 push @{$disabled_info{engine}->{skipped}}, catdir('engines');
1218                 push @{$config{openssl_other_defines}}, $macro;
1219             }
1220         } else {
1221             push @{$config{openssl_other_defines}}, $macro;
1222         }
1223
1224     }
1225 }
1226
1227 # Make sure build_scheme is consistent.
1228 $target{build_scheme} = [ $target{build_scheme} ]
1229     if ref($target{build_scheme}) ne "ARRAY";
1230
1231 my ($builder, $builder_platform, @builder_opts) =
1232     @{$target{build_scheme}};
1233
1234 foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1235                       $builder_platform."-checker.pm")) {
1236     my $checker_path = catfile($srcdir, "Configurations", $checker);
1237     if (-f $checker_path) {
1238         my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1239             ? sub { warn $@; } : sub { die $@; };
1240         if (! do $checker_path) {
1241             if ($@) {
1242                 $fn->($@);
1243             } elsif ($!) {
1244                 $fn->($!);
1245             } else {
1246                 $fn->("The detected tools didn't match the platform\n");
1247             }
1248         }
1249         last;
1250     }
1251 }
1252
1253 push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";
1254
1255 if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1256         {
1257         push @{$config{cflags}}, "-mno-cygwin";
1258         push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1259         push @{$config{shared_ldflag}}, "-mno-cygwin";
1260         }
1261
1262 if ($target =~ /linux.*-mips/ && !$disabled{asm}
1263         && !grep { $_ !~ /-m(ips|arch=)/ } (@{$config{CFLAGS}})) {
1264         # minimally required architecture flags for assembly modules
1265         my $value;
1266         $value = '-mips2' if ($target =~ /mips32/);
1267         $value = '-mips3' if ($target =~ /mips64/);
1268         unshift @{$config{cflags}}, $value;
1269         unshift @{$config{cxxflags}}, $value if $config{CXX};
1270 }
1271
1272 # If threads aren't disabled, check how possible they are
1273 unless ($disabled{threads}) {
1274     if ($auto_threads) {
1275         # Enabled by default, disable it forcibly if unavailable
1276         if ($target{thread_scheme} eq "(unknown)") {
1277             disable("unavailable", 'threads');
1278         }
1279     } else {
1280         # The user chose to enable threads explicitly, let's see
1281         # if there's a chance that's possible
1282         if ($target{thread_scheme} eq "(unknown)") {
1283             # If the user asked for "threads" and we don't have internal
1284             # knowledge how to do it, [s]he is expected to provide any
1285             # system-dependent compiler options that are necessary.  We
1286             # can't truly check that the given options are correct, but
1287             # we expect the user to know what [s]He is doing.
1288             if (!@{$config{CFLAGS}} && !@{$config{CPPDEFINES}}) {
1289                 die "You asked for multi-threading support, but didn't\n"
1290                     ,"provide any system-specific compiler options\n";
1291             }
1292         }
1293     }
1294 }
1295
1296 # If threads still aren't disabled, add a C macro to ensure the source
1297 # code knows about it.  Any other flag is taken care of by the configs.
1298 unless($disabled{threads}) {
1299     push @{$config{openssl_thread_defines}}, "OPENSSL_THREADS";
1300 }
1301
1302 # With "deprecated" disable all deprecated features.
1303 if (defined($disabled{"deprecated"})) {
1304         $config{api} = $maxapi;
1305 }
1306
1307 my $no_shared_warn=0;
1308 if ($target{shared_target} eq "")
1309         {
1310         $no_shared_warn = 1
1311             if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1312         disable('no-shared-target', 'pic');
1313         }
1314
1315 if ($disabled{"dynamic-engine"}) {
1316         push @{$config{openssl_other_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1317         $config{dynamic_engines} = 0;
1318 } else {
1319         push @{$config{openssl_other_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1320         $config{dynamic_engines} = 1;
1321 }
1322
1323 unless ($disabled{asan}) {
1324     push @{$config{cflags}}, "-fsanitize=address";
1325 }
1326
1327 unless ($disabled{ubsan}) {
1328     # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1329     # platforms.
1330     push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1331 }
1332
1333 unless ($disabled{msan}) {
1334   push @{$config{cflags}}, "-fsanitize=memory";
1335 }
1336
1337 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1338         && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1339     push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1340     push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1341 }
1342 #
1343 # Platform fix-ups
1344 #
1345
1346 # This saves the build files from having to check
1347 if ($disabled{pic})
1348         {
1349         foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1350                     shared_defines shared_includes shared_ldflag
1351                     module_cflags module_cxxflags module_cppflags
1352                     module_defines module_includes module_lflags))
1353                 {
1354                 delete $config{$_};
1355                 $target{$_} = "";
1356                 }
1357         }
1358 else
1359         {
1360         push @{$config{lib_defines}}, "OPENSSL_PIC";
1361         }
1362
1363 if ($target{sys_id} ne "")
1364         {
1365         push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1366         }
1367
1368 unless ($disabled{asm}) {
1369     $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1370     push @{$config{lib_defines}}, "OPENSSL_CPUID_OBJ" if ($target{cpuid_asm_src} ne "mem_clr.c");
1371
1372     $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1373
1374     # bn-586 is the only one implementing bn_*_part_words
1375     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1376     push @{$config{lib_defines}}, "OPENSSL_IA32_SSE2" if (!$disabled{sse2} && $target{bn_asm_src} =~ /86/);
1377
1378     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1379     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1380     push @{$config{lib_defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1381     push @{$config{lib_defines}}, "BN_DIV3W" if ($target{bn_asm_src} =~ /-div3w/);
1382
1383     if ($target{sha1_asm_src}) {
1384         push @{$config{lib_defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1385         push @{$config{lib_defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1386         push @{$config{lib_defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1387     }
1388     if ($target{keccak1600_asm_src} ne $table{DEFAULTS}->{keccak1600_asm_src}) {
1389         push @{$config{lib_defines}}, "KECCAK1600_ASM";
1390     }
1391     if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1392         push @{$config{lib_defines}}, "RC4_ASM";
1393     }
1394     if ($target{md5_asm_src}) {
1395         push @{$config{lib_defines}}, "MD5_ASM";
1396     }
1397     $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1398     if ($target{rmd160_asm_src}) {
1399         push @{$config{lib_defines}}, "RMD160_ASM";
1400     }
1401     if ($target{aes_asm_src}) {
1402         push @{$config{lib_defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1403         push @{$config{lib_defines}}, "AESNI_ASM" if ($target{aes_asm_src} =~ m/\baesni-/);;
1404         # aes-ctr.fake is not a real file, only indication that assembler
1405         # module implements AES_ctr32_encrypt...
1406         push @{$config{lib_defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1407         # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1408         push @{$config{lib_defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1409         $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($disabled{sse2});
1410         push @{$config{lib_defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1411         push @{$config{lib_defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1412     }
1413     if ($target{wp_asm_src} =~ /mmx/) {
1414         if ($config{processor} eq "386") {
1415             $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1416         } elsif (!$disabled{"whirlpool"}) {
1417             push @{$config{lib_defines}}, "WHIRLPOOL_ASM";
1418         }
1419     }
1420     if ($target{modes_asm_src} =~ /ghash-/) {
1421         push @{$config{lib_defines}}, "GHASH_ASM";
1422     }
1423     if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1424         push @{$config{lib_defines}}, "ECP_NISTZ256_ASM";
1425     }
1426     if ($target{ec_asm_src} =~ /x25519/) {
1427         push @{$config{lib_defines}}, "X25519_ASM";
1428     }
1429     if ($target{padlock_asm_src} ne $table{DEFAULTS}->{padlock_asm_src}) {
1430         push @{$config{dso_defines}}, "PADLOCK_ASM";
1431     }
1432     if ($target{poly1305_asm_src} ne "") {
1433         push @{$config{lib_defines}}, "POLY1305_ASM";
1434     }
1435 }
1436
1437 my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1438 my %predefined_CXX = $config{CXX}
1439     ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1440     : ();
1441
1442 # Check for makedepend capabilities.
1443 if (!$disabled{makedepend}) {
1444     if ($config{target} =~ /^(VC|vms)-/) {
1445         # For VC- and vms- targets, there's nothing more to do here.  The
1446         # functionality is hard coded in the corresponding build files for
1447         # cl (Windows) and CC/DECC (VMS).
1448     } elsif (($predefined_C{__GNUC__} // -1) >= 3
1449              && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1450         # We know that GNU C version 3 and up as well as all clang
1451         # versions support dependency generation, but Xcode did not
1452         # handle $cc -M before clang support (but claims __GNUC__ = 3)
1453         $config{makedepprog} = "\$(CROSS_COMPILE)$config{CC}";
1454     } else {
1455         # In all other cases, we look for 'makedepend', and disable the
1456         # capability if not found.
1457         $config{makedepprog} = which('makedepend');
1458         disable('unavailable', 'makedepend') unless $config{makedepprog};
1459     }
1460 }
1461
1462 if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1463     # probe for -Wa,--noexecstack option...
1464     if ($predefined_C{__clang__}) {
1465         # clang has builtin assembler, which doesn't recognize --help,
1466         # but it apparently recognizes the option in question on all
1467         # supported platforms even when it's meaningless. In other words
1468         # probe would fail, but probed option always accepted...
1469         push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1470     } else {
1471         my $cc = $config{CROSS_COMPILE}.$config{CC};
1472         open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1473         while(<PIPE>) {
1474             if (m/--noexecstack/) {
1475                 push @{$config{cflags}}, "-Wa,--noexecstack";
1476                 last;
1477             }
1478         }
1479         close(PIPE);
1480         unlink("null.$$.o");
1481     }
1482 }
1483
1484 # Deal with bn_ops ###################################################
1485
1486 $config{bn_ll}                  =0;
1487 $config{export_var_as_fn}       =0;
1488 my $def_int="unsigned int";
1489 $config{rc4_int}                =$def_int;
1490 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1491
1492 my $count = 0;
1493 foreach (sort split(/\s+/,$target{bn_ops})) {
1494     $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1495     $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
1496     $config{bn_ll}=1                            if $_ eq 'BN_LLONG';
1497     $config{rc4_int}="unsigned char"            if $_ eq 'RC4_CHAR';
1498     ($config{b64l},$config{b64},$config{b32})
1499         =(0,1,0)                                if $_ eq 'SIXTY_FOUR_BIT';
1500     ($config{b64l},$config{b64},$config{b32})
1501         =(1,0,0)                                if $_ eq 'SIXTY_FOUR_BIT_LONG';
1502     ($config{b64l},$config{b64},$config{b32})
1503         =(0,0,1)                                if $_ eq 'THIRTY_TWO_BIT';
1504 }
1505 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1506     if $count > 1;
1507
1508
1509 # Hack cflags for better warnings (dev option) #######################
1510
1511 # "Stringify" the C and C++ flags string.  This permits it to be made part of
1512 # a string and works as well on command lines.
1513 $config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1514                         @{$config{cflags}} ];
1515 $config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1516                           @{$config{cxxflags}} ] if $config{CXX};
1517
1518 if (defined($config{api})) {
1519     $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1520     my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1521     push @{$config{defines}}, $apiflag;
1522 }
1523
1524 my @strict_warnings_collection=();
1525 if ($strict_warnings)
1526         {
1527         my $wopt;
1528         my $gccver = $predefined_C{__GNUC__} // -1;
1529
1530         if ($gccver >= 4)
1531                 {
1532                 push @strict_warnings_collection, @gcc_devteam_warn;
1533                 push @strict_warnings_collection, @clang_devteam_warn
1534                     if (defined($predefined_C{__clang__}));
1535                 }
1536         elsif ($config{target} =~ /^VC-/)
1537                 {
1538                 push @strict_warnings_collection, @cl_devteam_warn;
1539                 }
1540         else
1541                 {
1542                 warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1543                 }
1544         }
1545
1546 if (grep { $_ eq '-static' } @{$config{LDFLAGS}}) {
1547     disable('static', 'pic', 'threads');
1548 }
1549
1550 $config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1551                               ? @strict_warnings_collection
1552                               : ( $_ ) }
1553                     @{$config{CFLAGS}} ];
1554
1555 unless ($disabled{"crypto-mdebug-backtrace"})
1556         {
1557         foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1558                 {
1559                 push @{$config{cflags}}, $wopt
1560                         unless grep { $_ eq $wopt } @{$config{cflags}};
1561                 }
1562         if ($target =~ /^BSD-/)
1563                 {
1564                 push @{$config{ex_libs}}, "-lexecinfo";
1565                 }
1566         }
1567
1568 unless ($disabled{afalgeng}) {
1569     $config{afalgeng}="";
1570     if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1571         my $minver = 4*10000 + 1*100 + 0;
1572         if ($config{CROSS_COMPILE} eq "") {
1573             my $verstr = `uname -r`;
1574             my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1575             ($mi2) = $mi2 =~ /(\d+)/;
1576             my $ver = $ma*10000 + $mi1*100 + $mi2;
1577             if ($ver < $minver) {
1578                 disable('too-old-kernel', 'afalgeng');
1579             } else {
1580                 push @{$config{engdirs}}, "afalg";
1581             }
1582         } else {
1583             disable('cross-compiling', 'afalgeng');
1584         }
1585     } else {
1586         disable('not-linux', 'afalgeng');
1587     }
1588 }
1589
1590 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1591
1592 # Get the extra flags used when building shared libraries and modules.  We
1593 # do this late because some of them depend on %disabled.
1594
1595 # Make the flags to build DSOs the same as for shared libraries unless they
1596 # are already defined
1597 $target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1598 $target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1599 $target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1600 {
1601     my $shared_info_pl =
1602         catfile(dirname($0), "Configurations", "shared-info.pl");
1603     my %shared_info = read_eval_file($shared_info_pl);
1604     push @{$target{_conf_fname_int}}, $shared_info_pl;
1605     my $si = $target{shared_target};
1606     while (ref $si ne "HASH") {
1607         last if ! defined $si;
1608         if (ref $si eq "CODE") {
1609             $si = $si->();
1610         } else {
1611             $si = $shared_info{$si};
1612         }
1613     }
1614
1615     # Some of the 'shared_target' values don't have any entries in
1616     # %shared_info.  That's perfectly fine, AS LONG AS the build file
1617     # template knows how to handle this.  That is currently the case for
1618     # Windows and VMS.
1619     if (defined $si) {
1620         # Just as above, copy certain shared_* attributes to the corresponding
1621         # module_ attribute unless the latter is already defined
1622         $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1623         $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1624         $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1625         foreach (sort keys %$si) {
1626             $target{$_} = defined $target{$_}
1627                 ? add($si->{$_})->($target{$_})
1628                 : $si->{$_};
1629         }
1630     }
1631 }
1632
1633 # ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1634
1635 # If we use the unified build, collect information from build.info files
1636 my %unified_info = ();
1637
1638 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1639 if ($builder eq "unified") {
1640     use with_fallback qw(Text::Template);
1641
1642     sub cleandir {
1643         my $base = shift;
1644         my $dir = shift;
1645         my $relativeto = shift || ".";
1646
1647         $dir = catdir($base,$dir) unless isabsolute($dir);
1648
1649         # Make sure the directories we're building in exists
1650         mkpath($dir);
1651
1652         my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1653         #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1654         return $res;
1655     }
1656
1657     sub cleanfile {
1658         my $base = shift;
1659         my $file = shift;
1660         my $relativeto = shift || ".";
1661
1662         $file = catfile($base,$file) unless isabsolute($file);
1663
1664         my $d = dirname($file);
1665         my $f = basename($file);
1666
1667         # Make sure the directories we're building in exists
1668         mkpath($d);
1669
1670         my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1671         #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1672         return $res;
1673     }
1674
1675     # Store the name of the template file we will build the build file from
1676     # in %config.  This may be useful for the build file itself.
1677     my @build_file_template_names =
1678         ( $builder_platform."-".$target{build_file}.".tmpl",
1679           $target{build_file}.".tmpl" );
1680     my @build_file_templates = ();
1681
1682     # First, look in the user provided directory, if given
1683     if (defined env($local_config_envname)) {
1684         @build_file_templates =
1685             map {
1686                 if ($^O eq 'VMS') {
1687                     # VMS environment variables are logical names,
1688                     # which can be used as is
1689                     $local_config_envname . ':' . $_;
1690                 } else {
1691                     catfile(env($local_config_envname), $_);
1692                 }
1693             }
1694             @build_file_template_names;
1695     }
1696     # Then, look in our standard directory
1697     push @build_file_templates,
1698         ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1699           @build_file_template_names );
1700
1701     my $build_file_template;
1702     for $_ (@build_file_templates) {
1703         $build_file_template = $_;
1704         last if -f $build_file_template;
1705
1706         $build_file_template = undef;
1707     }
1708     if (!defined $build_file_template) {
1709         die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1710     }
1711     $config{build_file_templates}
1712       = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1713                     $blddir),
1714           $build_file_template,
1715           cleanfile($srcdir, catfile("Configurations", "common.tmpl"),
1716                     $blddir) ];
1717
1718     my @build_infos = ( [ ".", "build.info" ] );
1719     foreach (@{$config{dirs}}) {
1720         push @build_infos, [ $_, "build.info" ]
1721             if (-f catfile($srcdir, $_, "build.info"));
1722     }
1723     foreach (@{$config{sdirs}}) {
1724         push @build_infos, [ catdir("crypto", $_), "build.info" ]
1725             if (-f catfile($srcdir, "crypto", $_, "build.info"));
1726     }
1727     foreach (@{$config{engdirs}}) {
1728         push @build_infos, [ catdir("engines", $_), "build.info" ]
1729             if (-f catfile($srcdir, "engines", $_, "build.info"));
1730     }
1731     foreach (@{$config{tdirs}}) {
1732         push @build_infos, [ catdir("test", $_), "build.info" ]
1733             if (-f catfile($srcdir, "test", $_, "build.info"));
1734     }
1735
1736     $config{build_infos} = [ ];
1737
1738     my %ordinals = ();
1739     foreach (@build_infos) {
1740         my $sourced = catdir($srcdir, $_->[0]);
1741         my $buildd = catdir($blddir, $_->[0]);
1742
1743         mkpath($buildd);
1744
1745         my $f = $_->[1];
1746         # The basic things we're trying to build
1747         my @programs = ();
1748         my @programs_install = ();
1749         my @libraries = ();
1750         my @libraries_install = ();
1751         my @engines = ();
1752         my @engines_install = ();
1753         my @scripts = ();
1754         my @scripts_install = ();
1755         my @extra = ();
1756         my @overrides = ();
1757         my @intermediates = ();
1758         my @rawlines = ();
1759
1760         my %sources = ();
1761         my %shared_sources = ();
1762         my %includes = ();
1763         my %depends = ();
1764         my %renames = ();
1765         my %sharednames = ();
1766         my %generate = ();
1767
1768         # We want to detect configdata.pm in the source tree, so we
1769         # don't use it if the build tree is different.
1770         my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1771
1772         push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1773         my $template =
1774             Text::Template->new(TYPE => 'FILE',
1775                                 SOURCE => catfile($sourced, $f),
1776                                 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
1777         die "Something went wrong with $sourced/$f: $!\n" unless $template;
1778         my @text =
1779             split /^/m,
1780             $template->fill_in(HASH => { config => \%config,
1781                                          target => \%target,
1782                                          disabled => \%disabled,
1783                                          withargs => \%withargs,
1784                                          builddir => abs2rel($buildd, $blddir),
1785                                          sourcedir => abs2rel($sourced, $blddir),
1786                                          buildtop => abs2rel($blddir, $blddir),
1787                                          sourcetop => abs2rel($srcdir, $blddir) },
1788                                DELIMITERS => [ "{-", "-}" ]);
1789
1790         # The top item of this stack has the following values
1791         # -2 positive already run and we found ELSE (following ELSIF should fail)
1792         # -1 positive already run (skip until ENDIF)
1793         # 0 negatives so far (if we're at a condition, check it)
1794         # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1795         # 2 positive ELSE (following ELSIF should fail)
1796         my @skip = ();
1797         collect_information(
1798             collect_from_array([ @text ],
1799                                qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1800                                                 $l1 =~ s/\\$//; $l1.$l2 }),
1801             # Info we're looking for
1802             qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1803             => sub {
1804                 if (! @skip || $skip[$#skip] > 0) {
1805                     push @skip, !! $1;
1806                 } else {
1807                     push @skip, -1;
1808                 }
1809             },
1810             qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1811             => sub { die "ELSIF out of scope" if ! @skip;
1812                      die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1813                      $skip[$#skip] = -1 if $skip[$#skip] != 0;
1814                      $skip[$#skip] = !! $1
1815                          if $skip[$#skip] == 0; },
1816             qr/^\s*ELSE\s*$/
1817             => sub { die "ELSE out of scope" if ! @skip;
1818                      $skip[$#skip] = -2 if $skip[$#skip] != 0;
1819                      $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1820             qr/^\s*ENDIF\s*$/
1821             => sub { die "ENDIF out of scope" if ! @skip;
1822                      pop @skip; },
1823             qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1824             => sub {
1825                 if (!@skip || $skip[$#skip] > 0) {
1826                     my $install = $1;
1827                     my @x = tokenize($2);
1828                     push @programs, @x;
1829                     push @programs_install, @x unless $install;
1830                 }
1831             },
1832             qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1833             => sub {
1834                 if (!@skip || $skip[$#skip] > 0) {
1835                     my $install = $1;
1836                     my @x = tokenize($2);
1837                     push @libraries, @x;
1838                     push @libraries_install, @x unless $install;
1839                 }
1840             },
1841             qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1842             => sub {
1843                 if (!@skip || $skip[$#skip] > 0) {
1844                     my $install = $1;
1845                     my @x = tokenize($2);
1846                     push @engines, @x;
1847                     push @engines_install, @x unless $install;
1848                 }
1849             },
1850             qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1851             => sub {
1852                 if (!@skip || $skip[$#skip] > 0) {
1853                     my $install = $1;
1854                     my @x = tokenize($2);
1855                     push @scripts, @x;
1856                     push @scripts_install, @x unless $install;
1857                 }
1858             },
1859             qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1860             => sub { push @extra, tokenize($1)
1861                          if !@skip || $skip[$#skip] > 0 },
1862             qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1863             => sub { push @overrides, tokenize($1)
1864                          if !@skip || $skip[$#skip] > 0 },
1865
1866             qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1867             => sub { push @{$ordinals{$1}}, tokenize($2)
1868                          if !@skip || $skip[$#skip] > 0 },
1869             qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1870             => sub { push @{$sources{$1}}, tokenize($2)
1871                          if !@skip || $skip[$#skip] > 0 },
1872             qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1873             => sub { push @{$shared_sources{$1}}, tokenize($2)
1874                          if !@skip || $skip[$#skip] > 0 },
1875             qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1876             => sub { push @{$includes{$1}}, tokenize($2)
1877                          if !@skip || $skip[$#skip] > 0 },
1878             qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1879             => sub { push @{$depends{$1}}, tokenize($2)
1880                          if !@skip || $skip[$#skip] > 0 },
1881             qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1882             => sub { push @{$generate{$1}}, $2
1883                          if !@skip || $skip[$#skip] > 0 },
1884             qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1885             => sub { push @{$renames{$1}}, tokenize($2)
1886                          if !@skip || $skip[$#skip] > 0 },
1887             qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1888             => sub { push @{$sharednames{$1}}, tokenize($2)
1889                          if !@skip || $skip[$#skip] > 0 },
1890             qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1891             => sub {
1892                 my $lineiterator = shift;
1893                 my $target_kind = $1;
1894                 while (defined $lineiterator->()) {
1895                     s|\R$||;
1896                     if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1897                         die "ENDRAW doesn't match BEGINRAW"
1898                             if $1 ne $target_kind;
1899                         last;
1900                     }
1901                     next if @skip && $skip[$#skip] <= 0;
1902                     push @rawlines,  $_
1903                         if ($target_kind eq $target{build_file}
1904                             || $target_kind eq $target{build_file}."(".$builder_platform.")");
1905                 }
1906             },
1907             qr/^\s*(?:#.*)?$/ => sub { },
1908             "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1909             "BEFORE" => sub {
1910                 if ($buildinfo_debug) {
1911                     print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1912                     print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1913                 }
1914             },
1915             "AFTER" => sub {
1916                 if ($buildinfo_debug) {
1917                     print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1918                 }
1919             },
1920             );
1921         die "runaway IF?" if (@skip);
1922
1923         foreach (keys %renames) {
1924             die "$_ renamed to more than one thing: "
1925                 ,join(" ", @{$renames{$_}}),"\n"
1926                 if scalar @{$renames{$_}} > 1;
1927             my $dest = cleanfile($buildd, $_, $blddir);
1928             my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1929             die "$dest renamed to more than one thing: "
1930                 ,$unified_info{rename}->{$dest}, $to
1931                 unless !defined($unified_info{rename}->{$dest})
1932                 or $unified_info{rename}->{$dest} eq $to;
1933             $unified_info{rename}->{$dest} = $to;
1934         }
1935
1936         foreach (@programs) {
1937             my $program = cleanfile($buildd, $_, $blddir);
1938             if ($unified_info{rename}->{$program}) {
1939                 $program = $unified_info{rename}->{$program};
1940             }
1941             $unified_info{programs}->{$program} = 1;
1942         }
1943
1944         foreach (@programs_install) {
1945             my $program = cleanfile($buildd, $_, $blddir);
1946             if ($unified_info{rename}->{$program}) {
1947                 $program = $unified_info{rename}->{$program};
1948             }
1949             $unified_info{install}->{programs}->{$program} = 1;
1950         }
1951
1952         foreach (@libraries) {
1953             my $library = cleanfile($buildd, $_, $blddir);
1954             if ($unified_info{rename}->{$library}) {
1955                 $library = $unified_info{rename}->{$library};
1956             }
1957             $unified_info{libraries}->{$library} = 1;
1958         }
1959
1960         foreach (@libraries_install) {
1961             my $library = cleanfile($buildd, $_, $blddir);
1962             if ($unified_info{rename}->{$library}) {
1963                 $library = $unified_info{rename}->{$library};
1964             }
1965             $unified_info{install}->{libraries}->{$library} = 1;
1966         }
1967
1968         die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1969 ENGINES can only be used if configured with 'dynamic-engine'.
1970 This is usually a fault in a build.info file.
1971 EOF
1972         foreach (@engines) {
1973             my $library = cleanfile($buildd, $_, $blddir);
1974             if ($unified_info{rename}->{$library}) {
1975                 $library = $unified_info{rename}->{$library};
1976             }
1977             $unified_info{engines}->{$library} = 1;
1978         }
1979
1980         foreach (@engines_install) {
1981             my $library = cleanfile($buildd, $_, $blddir);
1982             if ($unified_info{rename}->{$library}) {
1983                 $library = $unified_info{rename}->{$library};
1984             }
1985             $unified_info{install}->{engines}->{$library} = 1;
1986         }
1987
1988         foreach (@scripts) {
1989             my $script = cleanfile($buildd, $_, $blddir);
1990             if ($unified_info{rename}->{$script}) {
1991                 $script = $unified_info{rename}->{$script};
1992             }
1993             $unified_info{scripts}->{$script} = 1;
1994         }
1995
1996         foreach (@scripts_install) {
1997             my $script = cleanfile($buildd, $_, $blddir);
1998             if ($unified_info{rename}->{$script}) {
1999                 $script = $unified_info{rename}->{$script};
2000             }
2001             $unified_info{install}->{scripts}->{$script} = 1;
2002         }
2003
2004         foreach (@extra) {
2005             my $extra = cleanfile($buildd, $_, $blddir);
2006             $unified_info{extra}->{$extra} = 1;
2007         }
2008
2009         foreach (@overrides) {
2010             my $override = cleanfile($buildd, $_, $blddir);
2011             $unified_info{overrides}->{$override} = 1;
2012         }
2013
2014         push @{$unified_info{rawlines}}, @rawlines;
2015
2016         unless ($disabled{shared}) {
2017             # Check sharednames.
2018             foreach (keys %sharednames) {
2019                 my $dest = cleanfile($buildd, $_, $blddir);
2020                 if ($unified_info{rename}->{$dest}) {
2021                     $dest = $unified_info{rename}->{$dest};
2022                 }
2023                 die "shared_name for $dest with multiple values: "
2024                     ,join(" ", @{$sharednames{$_}}),"\n"
2025                     if scalar @{$sharednames{$_}} > 1;
2026                 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
2027                 die "shared_name found for a library $dest that isn't defined\n"
2028                     unless $unified_info{libraries}->{$dest};
2029                 die "shared_name for $dest with multiple values: "
2030                     ,$unified_info{sharednames}->{$dest}, ", ", $to
2031                     unless !defined($unified_info{sharednames}->{$dest})
2032                     or $unified_info{sharednames}->{$dest} eq $to;
2033                 $unified_info{sharednames}->{$dest} = $to;
2034             }
2035
2036             # Additionally, we set up sharednames for libraries that don't
2037             # have any, as themselves.  Only for libraries that aren't
2038             # explicitly static.
2039             foreach (grep !/\.a$/, keys %{$unified_info{libraries}}) {
2040                 if (!defined $unified_info{sharednames}->{$_}) {
2041                     $unified_info{sharednames}->{$_} = $_
2042                 }
2043             }
2044
2045             # Check that we haven't defined any library as both shared and
2046             # explicitly static.  That is forbidden.
2047             my @doubles = ();
2048             foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2049                 (my $l = $_) =~ s/\.a$//;
2050                 push @doubles, $l if defined $unified_info{sharednames}->{$l};
2051             }
2052             die "these libraries are both explicitly static and shared:\n  ",
2053                 join(" ", @doubles), "\n"
2054                 if @doubles;
2055         }
2056
2057         foreach (keys %sources) {
2058             my $dest = $_;
2059             my $ddest = cleanfile($buildd, $_, $blddir);
2060             if ($unified_info{rename}->{$ddest}) {
2061                 $ddest = $unified_info{rename}->{$ddest};
2062             }
2063             foreach (@{$sources{$dest}}) {
2064                 my $s = cleanfile($sourced, $_, $blddir);
2065
2066                 # If it isn't in the source tree, we assume it's generated
2067                 # in the build tree
2068                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2069                     $s = cleanfile($buildd, $_, $blddir);
2070                 }
2071                 # We recognise C++, C and asm files
2072                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2073                     my $o = $_;
2074                     $o =~ s/\.[csS]$/.o/; # C and assembler
2075                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2076                     $o = cleanfile($buildd, $o, $blddir);
2077                     $unified_info{sources}->{$ddest}->{$o} = 1;
2078                     $unified_info{sources}->{$o}->{$s} = 1;
2079                 } elsif ($s =~ /\.rc$/) {
2080                     # We also recognise resource files
2081                     my $o = $_;
2082                     $o =~ s/\.rc$/.res/; # Resource configuration
2083                     my $o = cleanfile($buildd, $o, $blddir);
2084                     $unified_info{sources}->{$ddest}->{$o} = 1;
2085                     $unified_info{sources}->{$o}->{$s} = 1;
2086                 } else {
2087                     $unified_info{sources}->{$ddest}->{$s} = 1;
2088                 }
2089             }
2090         }
2091
2092         foreach (keys %shared_sources) {
2093             my $dest = $_;
2094             my $ddest = cleanfile($buildd, $_, $blddir);
2095             if ($unified_info{rename}->{$ddest}) {
2096                 $ddest = $unified_info{rename}->{$ddest};
2097             }
2098             foreach (@{$shared_sources{$dest}}) {
2099                 my $s = cleanfile($sourced, $_, $blddir);
2100
2101                 # If it isn't in the source tree, we assume it's generated
2102                 # in the build tree
2103                 if ($s eq $src_configdata || ! -f $s || $generate{$_}) {
2104                     $s = cleanfile($buildd, $_, $blddir);
2105                 }
2106
2107                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2108                     # We recognise C++, C and asm files
2109                     my $o = $_;
2110                     $o =~ s/\.[csS]$/.o/; # C and assembler
2111                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2112                     $o = cleanfile($buildd, $o, $blddir);
2113                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2114                     $unified_info{sources}->{$o}->{$s} = 1;
2115                 } elsif ($s =~ /\.rc$/) {
2116                     # We also recognise resource files
2117                     my $o = $_;
2118                     $o =~ s/\.rc$/.res/; # Resource configuration
2119                     my $o = cleanfile($buildd, $o, $blddir);
2120                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2121                     $unified_info{sources}->{$o}->{$s} = 1;
2122                 } elsif ($s =~ /\.(def|map|opt)$/) {
2123                     # We also recognise .def / .map / .opt files
2124                     # We know they are generated files
2125                     my $def = cleanfile($buildd, $s, $blddir);
2126                     $unified_info{shared_sources}->{$ddest}->{$def} = 1;
2127                 } else {
2128                     die "unrecognised source file type for shared library: $s\n";
2129                 }
2130             }
2131         }
2132
2133         foreach (keys %generate) {
2134             my $dest = $_;
2135             my $ddest = cleanfile($buildd, $_, $blddir);
2136             if ($unified_info{rename}->{$ddest}) {
2137                 $ddest = $unified_info{rename}->{$ddest};
2138             }
2139             die "more than one generator for $dest: "
2140                     ,join(" ", @{$generate{$_}}),"\n"
2141                     if scalar @{$generate{$_}} > 1;
2142             my @generator = split /\s+/, $generate{$dest}->[0];
2143             $generator[0] = cleanfile($sourced, $generator[0], $blddir),
2144             $unified_info{generate}->{$ddest} = [ @generator ];
2145         }
2146
2147         foreach (keys %depends) {
2148             my $dest = $_;
2149             my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
2150
2151             # If the destination doesn't exist in source, it can only be
2152             # a generated file in the build tree.
2153             if ($ddest ne "" && ($ddest eq $src_configdata || ! -f $ddest)) {
2154                 $ddest = cleanfile($buildd, $_, $blddir);
2155                 if ($unified_info{rename}->{$ddest}) {
2156                     $ddest = $unified_info{rename}->{$ddest};
2157                 }
2158             }
2159             foreach (@{$depends{$dest}}) {
2160                 my $d = cleanfile($sourced, $_, $blddir);
2161
2162                 # If we know it's generated, or assume it is because we can't
2163                 # find it in the source tree, we set file we depend on to be
2164                 # in the build tree rather than the source tree, and assume
2165                 # and that there are lines to build it in a BEGINRAW..ENDRAW
2166                 # section or in the Makefile template.
2167                 if ($d eq $src_configdata
2168                     || ! -f $d
2169                     || (grep { $d eq $_ }
2170                         map { cleanfile($srcdir, $_, $blddir) }
2171                         grep { /\.h$/ } keys %{$unified_info{generate}})) {
2172                     $d = cleanfile($buildd, $_, $blddir);
2173                 }
2174                 # Take note if the file to depend on is being renamed
2175                 # Take extra care with files ending with .a, they should
2176                 # be treated without that extension, and the extension
2177                 # should be added back after treatment.
2178                 $d =~ /(\.a)?$/;
2179                 my $e = $1 // "";
2180                 $d = $`;
2181                 if ($unified_info{rename}->{$d}) {
2182                     $d = $unified_info{rename}->{$d};
2183                 }
2184                 $d .= $e;
2185                 $unified_info{depends}->{$ddest}->{$d} = 1;
2186             }
2187         }
2188
2189         foreach (keys %includes) {
2190             my $dest = $_;
2191             my $ddest = cleanfile($sourced, $_, $blddir);
2192
2193             # If the destination doesn't exist in source, it can only be
2194             # a generated file in the build tree.
2195             if ($ddest eq $src_configdata || ! -f $ddest) {
2196                 $ddest = cleanfile($buildd, $_, $blddir);
2197                 if ($unified_info{rename}->{$ddest}) {
2198                     $ddest = $unified_info{rename}->{$ddest};
2199                 }
2200             }
2201             foreach (@{$includes{$dest}}) {
2202                 my $is = cleandir($sourced, $_, $blddir);
2203                 my $ib = cleandir($buildd, $_, $blddir);
2204                 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2205                     unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2206                 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2207                     unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2208             }
2209         }
2210     }
2211
2212     my $ordinals_text = join(', ', sort keys %ordinals);
2213     warn <<"EOF" if $ordinals_text;
2214
2215 WARNING: ORDINALS were specified for $ordinals_text
2216 They are ignored and should be replaced with a combination of GENERATE,
2217 DEPEND and SHARED_SOURCE.
2218 EOF
2219
2220     # Massage the result
2221
2222     # If the user configured no-shared, we allow no shared sources
2223     if ($disabled{shared}) {
2224         foreach (keys %{$unified_info{shared_sources}}) {
2225             foreach (keys %{$unified_info{shared_sources}->{$_}}) {
2226                 delete $unified_info{sources}->{$_};
2227             }
2228         }
2229         $unified_info{shared_sources} = {};
2230     }
2231
2232     # If we depend on a header file or a perl module, add an inclusion of
2233     # its directory to allow smoothe inclusion
2234     foreach my $dest (keys %{$unified_info{depends}}) {
2235         next if $dest eq "";
2236         foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2237             next unless $d =~ /\.(h|pm)$/;
2238             my $i = dirname($d);
2239             my $spot =
2240                 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2241                 ? 'build' : 'source';
2242             push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2243                 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2244         }
2245     }
2246
2247     # Trickle down includes placed on libraries, engines and programs to
2248     # their sources (i.e. object files)
2249     foreach my $dest (keys %{$unified_info{engines}},
2250                       keys %{$unified_info{libraries}},
2251                       keys %{$unified_info{programs}}) {
2252         foreach my $k (("source", "build")) {
2253             next unless defined($unified_info{includes}->{$dest}->{$k});
2254             my @incs = reverse @{$unified_info{includes}->{$dest}->{$k}};
2255             foreach my $obj (grep /\.o$/,
2256                              (keys %{$unified_info{sources}->{$dest} // {}},
2257                               keys %{$unified_info{shared_sources}->{$dest} // {}})) {
2258                 foreach my $inc (@incs) {
2259                     unshift @{$unified_info{includes}->{$obj}->{$k}}, $inc
2260                         unless grep { $_ eq $inc } @{$unified_info{includes}->{$obj}->{$k}};
2261                 }
2262             }
2263         }
2264         delete $unified_info{includes}->{$dest};
2265     }
2266
2267     ### Make unified_info a bit more efficient
2268     # One level structures
2269     foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
2270         $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2271     }
2272     # Two level structures
2273     foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
2274         foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2275             $unified_info{$l1}->{$l2} =
2276                 [ sort keys %{$unified_info{$l1}->{$l2}} ];
2277         }
2278     }
2279     # Includes
2280     foreach my $dest (sort keys %{$unified_info{includes}}) {
2281         if (defined($unified_info{includes}->{$dest}->{build})) {
2282             my @source_includes = ();
2283             @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2284                 if defined($unified_info{includes}->{$dest}->{source});
2285             $unified_info{includes}->{$dest} =
2286                 [ @{$unified_info{includes}->{$dest}->{build}} ];
2287             foreach my $inc (@source_includes) {
2288                 push @{$unified_info{includes}->{$dest}}, $inc
2289                     unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2290             }
2291         } else {
2292             $unified_info{includes}->{$dest} =
2293                 [ @{$unified_info{includes}->{$dest}->{source}} ];
2294         }
2295     }
2296
2297     # For convenience collect information regarding directories where
2298     # files are generated, those generated files and the end product
2299     # they end up in where applicable.  Then, add build rules for those
2300     # directories
2301     my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2302                      "dso" => [ @{$unified_info{engines}} ],
2303                      "bin" => [ @{$unified_info{programs}} ],
2304                      "script" => [ @{$unified_info{scripts}} ] );
2305     foreach my $type (keys %loopinfo) {
2306         foreach my $product (@{$loopinfo{$type}}) {
2307             my %dirs = ();
2308             my $pd = dirname($product);
2309
2310             foreach (@{$unified_info{sources}->{$product} // []},
2311                      @{$unified_info{shared_sources}->{$product} // []}) {
2312                 my $d = dirname($_);
2313
2314                 # We don't want to create targets for source directories
2315                 # when building out of source
2316                 next if ($config{sourcedir} ne $config{builddir}
2317                              && $d =~ m|^\Q$config{sourcedir}\E|);
2318                 # We already have a "test" target, and the current directory
2319                 # is just silly to make a target for
2320                 next if $d eq "test" || $d eq ".";
2321
2322                 $dirs{$d} = 1;
2323                 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2324                     if $d ne $pd;
2325             }
2326             foreach (keys %dirs) {
2327                 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2328                     $product;
2329             }
2330         }
2331     }
2332 }
2333
2334 # For the schemes that need it, we provide the old *_obj configs
2335 # from the *_asm_obj ones
2336 foreach (grep /_(asm|aux)_src$/, keys %target) {
2337     my $src = $_;
2338     (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2339     $target{$obj} = $target{$src};
2340     $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2341     $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2342 }
2343
2344 # Write down our configuration where it fits #########################
2345
2346 print "Creating configdata.pm\n";
2347 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
2348 print OUT <<"EOF";
2349 #! $config{HASHBANGPERL}
2350
2351 package configdata;
2352
2353 use strict;
2354 use warnings;
2355
2356 use Exporter;
2357 #use vars qw(\@ISA \@EXPORT);
2358 our \@ISA = qw(Exporter);
2359 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
2360
2361 EOF
2362 print OUT "our %config = (\n";
2363 foreach (sort keys %config) {
2364     if (ref($config{$_}) eq "ARRAY") {
2365         print OUT "  ", $_, " => [ ", join(", ",
2366                                            map { quotify("perl", $_) }
2367                                            @{$config{$_}}), " ],\n";
2368     } elsif (ref($config{$_}) eq "HASH") {
2369         print OUT "  ", $_, " => {";
2370         if (scalar keys %{$config{$_}} > 0) {
2371             print OUT "\n";
2372             foreach my $key (sort keys %{$config{$_}}) {
2373                 print OUT "      ",
2374                     join(" => ",
2375                          quotify("perl", $key),
2376                          defined $config{$_}->{$key}
2377                              ? quotify("perl", $config{$_}->{$key})
2378                              : "undef");
2379                 print OUT ",\n";
2380             }
2381             print OUT "  ";
2382         }
2383         print OUT "},\n";
2384     } else {
2385         print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
2386     }
2387 }
2388 print OUT <<"EOF";
2389 );
2390
2391 EOF
2392 print OUT "our %target = (\n";
2393 foreach (sort keys %target) {
2394     if (ref($target{$_}) eq "ARRAY") {
2395         print OUT "  ", $_, " => [ ", join(", ",
2396                                            map { quotify("perl", $_) }
2397                                            @{$target{$_}}), " ],\n";
2398     } else {
2399         print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
2400     }
2401 }
2402 print OUT <<"EOF";
2403 );
2404
2405 EOF
2406 print OUT "our \%available_protocols = (\n";
2407 print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
2408 print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
2409 print OUT <<"EOF";
2410 );
2411
2412 EOF
2413 print OUT "our \@disablables = (\n";
2414 foreach (@disablables) {
2415     print OUT "  ", quotify("perl", $_), ",\n";
2416 }
2417 print OUT <<"EOF";
2418 );
2419
2420 EOF
2421 print OUT "our \%disabled = (\n";
2422 foreach (sort keys %disabled) {
2423     print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
2424 }
2425 print OUT <<"EOF";
2426 );
2427
2428 EOF
2429 print OUT "our %withargs = (\n";
2430 foreach (sort keys %withargs) {
2431     if (ref($withargs{$_}) eq "ARRAY") {
2432         print OUT "  ", $_, " => [ ", join(", ",
2433                                            map { quotify("perl", $_) }
2434                                            @{$withargs{$_}}), " ],\n";
2435     } else {
2436         print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
2437     }
2438 }
2439 print OUT <<"EOF";
2440 );
2441
2442 EOF
2443 if ($builder eq "unified") {
2444     my $recurse;
2445     $recurse = sub {
2446         my $indent = shift;
2447         foreach (@_) {
2448             if (ref $_ eq "ARRAY") {
2449                 print OUT " "x$indent, "[\n";
2450                 foreach (@$_) {
2451                     $recurse->($indent + 4, $_);
2452                 }
2453                 print OUT " "x$indent, "],\n";
2454             } elsif (ref $_ eq "HASH") {
2455                 my %h = %$_;
2456                 print OUT " "x$indent, "{\n";
2457                 foreach (sort keys %h) {
2458                     if (ref $h{$_} eq "") {
2459                         print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
2460                     } else {
2461                         print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
2462                         $recurse->($indent + 8, $h{$_});
2463                     }
2464                 }
2465                 print OUT " "x$indent, "},\n";
2466             } else {
2467                 print OUT " "x$indent, quotify("perl", $_), ",\n";
2468             }
2469         }
2470     };
2471     print OUT "our %unified_info = (\n";
2472     foreach (sort keys %unified_info) {
2473         if (ref $unified_info{$_} eq "") {
2474             print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
2475         } else {
2476             print OUT " "x4, quotify("perl", $_), " =>\n";
2477             $recurse->(8, $unified_info{$_});
2478         }
2479     }
2480     print OUT <<"EOF";
2481 );
2482
2483 EOF
2484 }
2485 print OUT
2486     "# The following data is only used when this files is use as a script\n";
2487 print OUT "my \@makevars = (\n";
2488 foreach (sort keys %user) {
2489     print OUT "    '",$_,"',\n";
2490 }
2491 print OUT ");\n";
2492 print OUT "my \%disabled_info = (\n";
2493 foreach my $what (sort keys %disabled_info) {
2494     print OUT "    '$what' => {\n";
2495     foreach my $info (sort keys %{$disabled_info{$what}}) {
2496         if (ref $disabled_info{$what}->{$info} eq 'ARRAY') {
2497             print OUT "        $info => [ ",
2498                 join(', ', map { "'$_'" } @{$disabled_info{$what}->{$info}}),
2499                 " ],\n";
2500         } else {
2501             print OUT "        $info => '", $disabled_info{$what}->{$info},
2502                 "',\n";
2503         }
2504     }
2505     print OUT "    },\n";
2506 }
2507 print OUT ");\n";
2508 print OUT 'my @user_crossable = qw( ', join (' ', @user_crossable), " );\n";
2509 print OUT << 'EOF';
2510 # If run directly, we can give some answers, and even reconfigure
2511 unless (caller) {
2512     use Getopt::Long;
2513     use File::Spec::Functions;
2514     use File::Basename;
2515     use Pod::Usage;
2516
2517     my $here = dirname($0);
2518
2519     my $dump = undef;
2520     my $cmdline = undef;
2521     my $options = undef;
2522     my $target = undef;
2523     my $envvars = undef;
2524     my $makevars = undef;
2525     my $buildparams = undef;
2526     my $reconf = undef;
2527     my $verbose = undef;
2528     my $help = undef;
2529     my $man = undef;
2530     GetOptions('dump|d'                 => \$dump,
2531                'command-line|c'         => \$cmdline,
2532                'options|o'              => \$options,
2533                'target|t'               => \$target,
2534                'environment|e'          => \$envvars,
2535                'make-variables|m'       => \$makevars,
2536                'build-parameters|b'     => \$buildparams,
2537                'reconfigure|reconf|r'   => \$reconf,
2538                'verbose|v'              => \$verbose,
2539                'help'                   => \$help,
2540                'man'                    => \$man)
2541         or die "Errors in command line arguments\n";
2542
2543     unless ($dump || $cmdline || $options || $target || $envvars || $makevars
2544             || $buildparams || $reconf || $verbose || $help || $man) {
2545         print STDERR <<"_____";
2546 You must give at least one option.
2547 For more information, do '$0 --help'
2548 _____
2549         exit(2);
2550     }
2551
2552     if ($help) {
2553         pod2usage(-exitval => 0,
2554                   -verbose => 1);
2555     }
2556     if ($man) {
2557         pod2usage(-exitval => 0,
2558                   -verbose => 2);
2559     }
2560     if ($dump || $cmdline) {
2561         print "\nCommand line (with current working directory = $here):\n\n";
2562         print '    ',join(' ',
2563                           $config{PERL},
2564                           catfile($config{sourcedir}, 'Configure'),
2565                           @{$config{perlargv}}), "\n";
2566         print "\nPerl information:\n\n";
2567         print '    ',$config{perl_cmd},"\n";
2568         print '    ',$config{perl_version},' for ',$config{perl_archname},"\n";
2569     }
2570     if ($dump || $options) {
2571         my $longest = 0;
2572         my $longest2 = 0;
2573         foreach my $what (@disablables) {
2574             $longest = length($what) if $longest < length($what);
2575             $longest2 = length($disabled{$what})
2576                 if $disabled{$what} && $longest2 < length($disabled{$what});
2577         }
2578         print "\nEnabled features:\n\n";
2579         foreach my $what (@disablables) {
2580             print "    $what\n" unless $disabled{$what};
2581         }
2582         print "\nDisabled features:\n\n";
2583         foreach my $what (@disablables) {
2584             if ($disabled{$what}) {
2585                 print "    $what", ' ' x ($longest - length($what) + 1),
2586                     "[$disabled{$what}]", ' ' x ($longest2 - length($disabled{$what}) + 1);
2587                 print $disabled_info{$what}->{macro}
2588                     if $disabled_info{$what}->{macro};
2589                 print ' (skip ',
2590                     join(', ', @{$disabled_info{$what}->{skipped}}),
2591                     ')'
2592                     if $disabled_info{$what}->{skipped};
2593                 print "\n";
2594             }
2595         }
2596     }
2597     if ($dump || $target) {
2598         print "\nConfig target attributes:\n\n";
2599         foreach (sort keys %target) {
2600             next if $_ =~ m|^_| || $_ eq 'template';
2601             my $quotify = sub {
2602                 map { (my $x = $_) =~ s|([\\\$\@"])|\\$1|g; "\"$x\""} @_;
2603             };
2604             print '    ', $_, ' => ';
2605             if (ref($target{$_}) eq "ARRAY") {
2606                 print '[ ', join(', ', $quotify->(@{$target{$_}})), " ],\n";
2607             } else {
2608                 print $quotify->($target{$_}), ",\n"
2609             }
2610         }
2611     }
2612     if ($dump || $envvars) {
2613         print "\nRecorded environment:\n\n";
2614         foreach (sort keys %{$config{perlenv}}) {
2615             print '    ',$_,' = ',($config{perlenv}->{$_} || ''),"\n";
2616         }
2617     }
2618     if ($dump || $makevars) {
2619         print "\nMakevars:\n\n";
2620         foreach my $var (@makevars) {
2621             my $prefix = '';
2622             $prefix = $config{CROSS_COMPILE}
2623                 if grep { $var eq $_ } @user_crossable;
2624             $prefix //= '';
2625             print '    ',$var,' ' x (16 - length $var),'= ',
2626                 (ref $config{$var} eq 'ARRAY'
2627                  ? join(' ', @{$config{$var}})
2628                  : $prefix.$config{$var}),
2629                 "\n"
2630                 if defined $config{$var};
2631         }
2632
2633         my @buildfile = ($config{builddir}, $config{build_file});
2634         unshift @buildfile, $here
2635             unless file_name_is_absolute($config{builddir});
2636         my $buildfile = canonpath(catdir(@buildfile));
2637         print <<"_____";
2638
2639 NOTE: These variables only represent the configuration view.  The build file
2640 template may have processed these variables further, please have a look at the
2641 build file for more exact data:
2642     $buildfile
2643 _____
2644     }
2645     if ($dump || $buildparams) {
2646         my @buildfile = ($config{builddir}, $config{build_file});
2647         unshift @buildfile, $here
2648             unless file_name_is_absolute($config{builddir});
2649         print "\nbuild file:\n\n";
2650         print "    ", canonpath(catfile(@buildfile)),"\n";
2651
2652         print "\nbuild file templates:\n\n";
2653         foreach (@{$config{build_file_templates}}) {
2654             my @tmpl = ($_);
2655             unshift @tmpl, $here
2656                 unless file_name_is_absolute($config{sourcedir});
2657             print '    ',canonpath(catfile(@tmpl)),"\n";
2658         }
2659     }
2660     if ($reconf) {
2661         if ($verbose) {
2662             print 'Reconfiguring with: ', join(' ',@{$config{perlargv}}), "\n";
2663             foreach (sort keys %{$config{perlenv}}) {
2664                 print '    ',$_,' = ',($config{perlenv}->{$_} || ""),"\n";
2665             }
2666         }
2667
2668         chdir $here;
2669         exec $^X,catfile($config{sourcedir}, 'Configure'),'reconf';
2670     }
2671 }
2672
2673 1;
2674
2675 __END__
2676
2677 =head1 NAME
2678
2679 configdata.pm - configuration data for OpenSSL builds
2680
2681 =head1 SYNOPSIS
2682
2683 Interactive:
2684
2685   perl configdata.pm [options]
2686
2687 As data bank module:
2688
2689   use configdata;
2690
2691 =head1 DESCRIPTION
2692
2693 This module can be used in two modes, interactively and as a module containing
2694 all the data recorded by OpenSSL's Configure script.
2695
2696 When used interactively, simply run it as any perl script, with at least one
2697 option, and you will get the information you ask for.  See L</OPTIONS> below.
2698
2699 When loaded as a module, you get a few databanks with useful information to
2700 perform build related tasks.  The databanks are:
2701
2702     %config             Configured things.
2703     %target             The OpenSSL config target with all inheritances
2704                         resolved.
2705     %disabled           The features that are disabled.
2706     @disablables        The list of features that can be disabled.
2707     %withargs           All data given through --with-THING options.
2708     %unified_info       All information that was computed from the build.info
2709                         files.
2710
2711 =head1 OPTIONS
2712
2713 =over 4
2714
2715 =item B<--help>
2716
2717 Print a brief help message and exit.
2718
2719 =item B<--man>
2720
2721 Print the manual page and exit.
2722
2723 =item B<--dump> | B<-d>
2724
2725 Print all relevant configuration data.  This is equivalent to B<--command-line>
2726 B<--options> B<--target> B<--environment> B<--make-variables>
2727 B<--build-parameters>.
2728
2729 =item B<--command-line> | B<-c>
2730
2731 Print the current configuration command line.
2732
2733 =item B<--options> | B<-o>
2734
2735 Print the features, both enabled and disabled, and display defined macro and
2736 skipped directories where applicable.
2737
2738 =item B<--target> | B<-t>
2739
2740 Print the config attributes for this config target.
2741
2742 =item B<--environment> | B<-e>
2743
2744 Print the environment variables and their values at the time of configuration.
2745
2746 =item B<--make-variables> | B<-m>
2747
2748 Print the main make variables generated in the current configuration
2749
2750 =item B<--build-parameters> | B<-b>
2751
2752 Print the build parameters, i.e. build file and build file templates.
2753
2754 =item B<--reconfigure> | B<--reconf> | B<-r>
2755
2756 Redo the configuration.
2757
2758 =item B<--verbose> | B<-v>
2759
2760 Verbose output.
2761
2762 =back
2763
2764 =cut
2765
2766 EOF
2767 close(OUT);
2768 if ($builder_platform eq 'unix') {
2769     my $mode = (0755 & ~umask);
2770     chmod $mode, 'configdata.pm'
2771         or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2772 }
2773
2774 my %builders = (
2775     unified => sub {
2776         print 'Creating ',$target{build_file},"\n";
2777         run_dofile(catfile($blddir, $target{build_file}),
2778                    @{$config{build_file_templates}});
2779     },
2780     );
2781
2782 $builders{$builder}->($builder_platform, @builder_opts);
2783
2784 $SIG{__DIE__} = $orig_death_handler;
2785
2786 print <<"EOF" if ($disabled{threads} eq "unavailable");
2787
2788 The library could not be configured for supporting multi-threaded
2789 applications as the compiler options required on this system are not known.
2790 See file INSTALL for details if you need multi-threading.
2791 EOF
2792
2793 print <<"EOF" if ($no_shared_warn);
2794
2795 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2796 platform, so we will pretend you gave the option 'no-pic', which also disables
2797 'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
2798 or position independent code, please let us know (but please first make sure
2799 you have tried with a current version of OpenSSL).
2800 EOF
2801
2802 print <<"EOF";
2803
2804 **********************************************************************
2805 ***                                                                ***
2806 ***   OpenSSL has been successfully configured                     ***
2807 ***                                                                ***
2808 ***   If you encounter a problem while building, please open an    ***
2809 ***   issue on GitHub <https://github.com/openssl/openssl/issues>  ***
2810 ***   and include the output from the following command:           ***
2811 ***                                                                ***
2812 ***       perl configdata.pm --dump                                ***
2813 ***                                                                ***
2814 ***   (If you are new to OpenSSL, you might want to consult the    ***
2815 ***   'Troubleshooting' section in the INSTALL file first)         ***
2816 ***                                                                ***
2817 **********************************************************************
2818 EOF
2819
2820 exit(0);
2821
2822 ######################################################################
2823 #
2824 # Helpers and utility functions
2825 #
2826
2827 # Death handler, to print a helpful message in case of failure #######
2828 #
2829 sub death_handler {
2830     die @_ if $^S;              # To prevent the added message in eval blocks
2831     my $build_file = $target{build_file} // "build file";
2832     my @message = ( <<"_____", @_ );
2833
2834 Failure!  $build_file wasn't produced.
2835 Please read INSTALL and associated NOTES files.  You may also have to look over
2836 your available compiler tool chain or change your configuration.
2837
2838 _____
2839
2840     # Dying is terminal, so it's ok to reset the signal handler here.
2841     $SIG{__DIE__} = $orig_death_handler;
2842     die @message;
2843 }
2844
2845 # Configuration file reading #########################################
2846
2847 # Note: All of the helper functions are for lazy evaluation.  They all
2848 # return a CODE ref, which will return the intended value when evaluated.
2849 # Thus, whenever there's mention of a returned value, it's about that
2850 # intended value.
2851
2852 # Helper function to implement conditional inheritance depending on the
2853 # value of $disabled{asm}.  Used in inherit_from values as follows:
2854 #
2855 #      inherit_from => [ "template", asm("asm_tmpl") ]
2856 #
2857 sub asm {
2858     my @x = @_;
2859     sub {
2860         $disabled{asm} ? () : @x;
2861     }
2862 }
2863
2864 # Helper function to implement conditional value variants, with a default
2865 # plus additional values based on the value of $config{build_type}.
2866 # Arguments are given in hash table form:
2867 #
2868 #       picker(default => "Basic string: ",
2869 #              debug   => "debug",
2870 #              release => "release")
2871 #
2872 # When configuring with --debug, the resulting string will be
2873 # "Basic string: debug", and when not, it will be "Basic string: release"
2874 #
2875 # This can be used to create variants of sets of flags according to the
2876 # build type:
2877 #
2878 #       cflags => picker(default => "-Wall",
2879 #                        debug   => "-g -O0",
2880 #                        release => "-O3")
2881 #
2882 sub picker {
2883     my %opts = @_;
2884     return sub { add($opts{default} || (),
2885                      $opts{$config{build_type}} || ())->(); }
2886 }
2887
2888 # Helper function to combine several values of different types into one.
2889 # This is useful if you want to combine a string with the result of a
2890 # lazy function, such as:
2891 #
2892 #       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2893 #
2894 sub combine {
2895     my @stuff = @_;
2896     return sub { add(@stuff)->(); }
2897 }
2898
2899 # Helper function to implement conditional values depending on the value
2900 # of $disabled{threads}.  Can be used as follows:
2901 #
2902 #       cflags => combine("-Wall", threads("-pthread"))
2903 #
2904 sub threads {
2905     my @flags = @_;
2906     return sub { add($disabled{threads} ? () : @flags)->(); }
2907 }
2908
2909 sub shared {
2910     my @flags = @_;
2911     return sub { add($disabled{shared} ? () : @flags)->(); }
2912 }
2913
2914 our $add_called = 0;
2915 # Helper function to implement adding values to already existing configuration
2916 # values.  It handles elements that are ARRAYs, CODEs and scalars
2917 sub _add {
2918     my $separator = shift;
2919
2920     # If there's any ARRAY in the collection of values OR the separator
2921     # is undef, we will return an ARRAY of combined values, otherwise a
2922     # string of joined values with $separator as the separator.
2923     my $found_array = !defined($separator);
2924
2925     my @values =
2926         map {
2927             my $res = $_;
2928             while (ref($res) eq "CODE") {
2929                 $res = $res->();
2930             }
2931             if (defined($res)) {
2932                 if (ref($res) eq "ARRAY") {
2933                     $found_array = 1;
2934                     @$res;
2935                 } else {
2936                     $res;
2937                 }
2938             } else {
2939                 ();
2940             }
2941     } (@_);
2942
2943     $add_called = 1;
2944
2945     if ($found_array) {
2946         [ @values ];
2947     } else {
2948         join($separator, grep { defined($_) && $_ ne "" } @values);
2949     }
2950 }
2951 sub add_before {
2952     my $separator = " ";
2953     if (ref($_[$#_]) eq "HASH") {
2954         my $opts = pop;
2955         $separator = $opts->{separator};
2956     }
2957     my @x = @_;
2958     sub { _add($separator, @x, @_) };
2959 }
2960 sub add {
2961     my $separator = " ";
2962     if (ref($_[$#_]) eq "HASH") {
2963         my $opts = pop;
2964         $separator = $opts->{separator};
2965     }
2966     my @x = @_;
2967     sub { _add($separator, @_, @x) };
2968 }
2969
2970 sub read_eval_file {
2971     my $fname = shift;
2972     my $content;
2973     my @result;
2974
2975     open F, "< $fname" or die "Can't open '$fname': $!\n";
2976     {
2977         undef local $/;
2978         $content = <F>;
2979     }
2980     close F;
2981     {
2982         local $@;
2983
2984         @result = ( eval $content );
2985         warn $@ if $@;
2986     }
2987     return wantarray ? @result : $result[0];
2988 }
2989
2990 # configuration reader, evaluates the input file as a perl script and expects
2991 # it to fill %targets with target configurations.  Those are then added to
2992 # %table.
2993 sub read_config {
2994     my $fname = shift;
2995     my %targets;
2996
2997     {
2998         # Protect certain tables from tampering
2999         local %table = ();
3000
3001         %targets = read_eval_file($fname);
3002     }
3003     my %preexisting = ();
3004     foreach (sort keys %targets) {
3005         $preexisting{$_} = 1 if $table{$_};
3006     }
3007     die <<"EOF",
3008 The following config targets from $fname
3009 shadow pre-existing config targets with the same name:
3010 EOF
3011         map { "  $_\n" } sort keys %preexisting
3012         if %preexisting;
3013
3014
3015     # For each target, check that it's configured with a hash table.
3016     foreach (keys %targets) {
3017         if (ref($targets{$_}) ne "HASH") {
3018             if (ref($targets{$_}) eq "") {
3019                 warn "Deprecated target configuration for $_, ignoring...\n";
3020             } else {
3021                 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3022             }
3023             delete $targets{$_};
3024         } else {
3025             $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3026         }
3027     }
3028
3029     %table = (%table, %targets);
3030
3031 }
3032
3033 # configuration resolver.  Will only resolve all the lazy evaluation
3034 # codeblocks for the chosen target and all those it inherits from,
3035 # recursively
3036 sub resolve_config {
3037     my $target = shift;
3038     my @breadcrumbs = @_;
3039
3040 #    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3041
3042     if (grep { $_ eq $target } @breadcrumbs) {
3043         die "inherit_from loop!  target backtrace:\n  "
3044             ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
3045     }
3046
3047     if (!defined($table{$target})) {
3048         warn "Warning! target $target doesn't exist!\n";
3049         return ();
3050     }
3051     # Recurse through all inheritances.  They will be resolved on the
3052     # fly, so when this operation is done, they will all just be a
3053     # bunch of attributes with string values.
3054     # What we get here, though, are keys with references to lists of
3055     # the combined values of them all.  We will deal with lists after
3056     # this stage is done.
3057     my %combined_inheritance = ();
3058     if ($table{$target}->{inherit_from}) {
3059         my @inherit_from =
3060             map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3061         foreach (@inherit_from) {
3062             my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3063
3064             # 'template' is a marker that's considered private to
3065             # the config that had it.
3066             delete $inherited_config{template};
3067
3068             foreach (keys %inherited_config) {
3069                 if (!$combined_inheritance{$_}) {
3070                     $combined_inheritance{$_} = [];
3071                 }
3072                 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3073             }
3074         }
3075     }
3076
3077     # We won't need inherit_from in this target any more, since we've
3078     # resolved all the inheritances that lead to this
3079     delete $table{$target}->{inherit_from};
3080
3081     # Now is the time to deal with those lists.  Here's the place to
3082     # decide what shall be done with those lists, all based on the
3083     # values of the target we're currently dealing with.
3084     # - If a value is a coderef, it will be executed with the list of
3085     #   inherited values as arguments.
3086     # - If the corresponding key doesn't have a value at all or is the
3087     #   empty string, the inherited value list will be run through the
3088     #   default combiner (below), and the result becomes this target's
3089     #   value.
3090     # - Otherwise, this target's value is assumed to be a string that
3091     #   will simply override the inherited list of values.
3092     my $default_combiner = add();
3093
3094     my %all_keys =
3095         map { $_ => 1 } (keys %combined_inheritance,
3096                          keys %{$table{$target}});
3097
3098     sub process_values {
3099         my $object    = shift;
3100         my $inherited = shift;  # Always a [ list ]
3101         my $target    = shift;
3102         my $entry     = shift;
3103
3104         $add_called = 0;
3105
3106         while(ref($object) eq "CODE") {
3107             $object = $object->(@$inherited);
3108         }
3109         if (!defined($object)) {
3110             return ();
3111         }
3112         elsif (ref($object) eq "ARRAY") {
3113             local $add_called;  # To make sure recursive calls don't affect it
3114             return [ map { process_values($_, $inherited, $target, $entry) }
3115                      @$object ];
3116         } elsif (ref($object) eq "") {
3117             return $object;
3118         } else {
3119             die "cannot handle reference type ",ref($object)
3120                 ," found in target ",$target," -> ",$entry,"\n";
3121         }
3122     }
3123
3124     foreach (sort keys %all_keys) {
3125         my $previous = $combined_inheritance{$_};
3126
3127         # Current target doesn't have a value for the current key?
3128         # Assign it the default combiner, the rest of this loop body
3129         # will handle it just like any other coderef.
3130         if (!exists $table{$target}->{$_}) {
3131             $table{$target}->{$_} = $default_combiner;
3132         }
3133
3134         $table{$target}->{$_} = process_values($table{$target}->{$_},
3135                                                $combined_inheritance{$_},
3136                                                $target, $_);
3137         unless(defined($table{$target}->{$_})) {
3138             delete $table{$target}->{$_};
3139         }
3140 #        if ($extra_checks &&
3141 #            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
3142 #            warn "$_ got replaced in $target\n";
3143 #        }
3144     }
3145
3146     # Finally done, return the result.
3147     return %{$table{$target}};
3148 }
3149
3150 sub usage
3151         {
3152         print STDERR $usage;
3153         print STDERR "\npick os/compiler from:\n";
3154         my $j=0;
3155         my $i;
3156         my $k=0;
3157         foreach $i (sort keys %table)
3158                 {
3159                 next if $table{$i}->{template};
3160                 next if $i =~ /^debug/;
3161                 $k += length($i) + 1;
3162                 if ($k > 78)
3163                         {
3164                         print STDERR "\n";
3165                         $k=length($i);
3166                         }
3167                 print STDERR $i . " ";
3168                 }
3169         foreach $i (sort keys %table)
3170                 {
3171                 next if $table{$i}->{template};
3172                 next if $i !~ /^debug/;
3173                 $k += length($i) + 1;
3174                 if ($k > 78)
3175                         {
3176                         print STDERR "\n";
3177                         $k=length($i);
3178                         }
3179                 print STDERR $i . " ";
3180                 }
3181         print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
3182         exit(1);
3183         }
3184
3185 sub run_dofile
3186 {
3187     my $out = shift;
3188     my @templates = @_;
3189
3190     unlink $out || warn "Can't remove $out, $!"
3191         if -f $out;
3192     foreach (@templates) {
3193         die "Can't open $_, $!" unless -f $_;
3194     }
3195     my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
3196     my $cmd = "$perlcmd \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
3197     #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
3198     system($cmd);
3199     exit 1 if $? != 0;
3200     rename("$out.new", $out) || die "Can't rename $out.new, $!";
3201 }
3202
3203 sub compiler_predefined {
3204     state %predefined;
3205     my $cc = shift;
3206
3207     return () if $^O eq 'VMS';
3208
3209     die 'compiler_predefined called without a compiler command'
3210         unless $cc;
3211
3212     if (! $predefined{$cc}) {
3213
3214         $predefined{$cc} = {};
3215
3216         # collect compiler pre-defines from gcc or gcc-alike...
3217         open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3218         while (my $l = <PIPE>) {
3219             $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3220             $predefined{$cc}->{$1} = $2 // '';
3221         }
3222         close(PIPE);
3223     }
3224
3225     return %{$predefined{$cc}};
3226 }
3227
3228 sub which
3229 {
3230     my ($name)=@_;
3231
3232     if (eval { require IPC::Cmd; 1; }) {
3233         IPC::Cmd->import();
3234         return scalar IPC::Cmd::can_run($name);
3235     } else {
3236         # if there is $directories component in splitpath,
3237         # then it's not something to test with $PATH...
3238         return $name if (File::Spec->splitpath($name))[1];
3239
3240         foreach (File::Spec->path()) {
3241             my $fullpath = catfile($_, "$name$target{exe_extension}");
3242             if (-f $fullpath and -x $fullpath) {
3243                 return $fullpath;
3244             }
3245         }
3246     }
3247 }
3248
3249 sub env
3250 {
3251     my $name = shift;
3252     my %opts = @_;
3253
3254     unless ($opts{cacheonly}) {
3255         # Note that if $ENV{$name} doesn't exist or is undefined,
3256         # $config{perlenv}->{$name} will be created with the value
3257         # undef.  This is intentional.
3258
3259         $config{perlenv}->{$name} = $ENV{$name}
3260             if ! exists $config{perlenv}->{$name};
3261     }
3262     return $config{perlenv}->{$name};
3263 }
3264
3265 # Configuration printer ##############################################
3266
3267 sub print_table_entry
3268 {
3269     local $now_printing = shift;
3270     my %target = resolve_config($now_printing);
3271     my $type = shift;
3272
3273     # Don't print the templates
3274     return if $target{template};
3275
3276     my @sequence = (
3277         "sys_id",
3278         "cpp",
3279         "cppflags",
3280         "defines",
3281         "includes",
3282         "cc",
3283         "cflags",
3284         "unistd",
3285         "ld",
3286         "lflags",
3287         "loutflag",
3288         "ex_libs",
3289         "bn_ops",
3290         "apps_aux_src",
3291         "cpuid_asm_src",
3292         "uplink_aux_src",
3293         "bn_asm_src",
3294         "ec_asm_src",
3295         "des_asm_src",
3296         "aes_asm_src",
3297         "bf_asm_src",
3298         "md5_asm_src",
3299         "cast_asm_src",
3300         "sha1_asm_src",
3301         "rc4_asm_src",
3302         "rmd160_asm_src",
3303         "rc5_asm_src",
3304         "wp_asm_src",
3305         "cmll_asm_src",
3306         "modes_asm_src",
3307         "padlock_asm_src",
3308         "chacha_asm_src",
3309         "poly1035_asm_src",
3310         "thread_scheme",
3311         "perlasm_scheme",
3312         "dso_scheme",
3313         "shared_target",
3314         "shared_cflag",
3315         "shared_defines",
3316         "shared_ldflag",
3317         "shared_rcflag",
3318         "shared_extension",
3319         "dso_extension",
3320         "obj_extension",
3321         "exe_extension",
3322         "ranlib",
3323         "ar",
3324         "arflags",
3325         "aroutflag",
3326         "rc",
3327         "rcflags",
3328         "rcoutflag",
3329         "mt",
3330         "mtflags",
3331         "mtinflag",
3332         "mtoutflag",
3333         "multilib",
3334         "build_scheme",
3335         );
3336
3337     if ($type eq "TABLE") {
3338         print "\n";
3339         print "*** $now_printing\n";
3340         foreach (@sequence) {
3341             if (ref($target{$_}) eq "ARRAY") {
3342                 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3343             } else {
3344                 printf "\$%-12s = %s\n", $_, $target{$_};
3345             }
3346         }
3347     } elsif ($type eq "HASH") {
3348         my $largest =
3349             length((sort { length($a) <=> length($b) } @sequence)[-1]);
3350         print "    '$now_printing' => {\n";
3351         foreach (@sequence) {
3352             if ($target{$_}) {
3353                 if (ref($target{$_}) eq "ARRAY") {
3354                     print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3355                 } else {
3356                     print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3357                 }
3358             }
3359         }
3360         print "    },\n";
3361     }
3362 }
3363
3364 # Utility routines ###################################################
3365
3366 # On VMS, if the given file is a logical name, File::Spec::Functions
3367 # will consider it an absolute path.  There are cases when we want a
3368 # purely syntactic check without checking the environment.
3369 sub isabsolute {
3370     my $file = shift;
3371
3372     # On non-platforms, we just use file_name_is_absolute().
3373     return file_name_is_absolute($file) unless $^O eq "VMS";
3374
3375     # If the file spec includes a device or a directory spec,
3376     # file_name_is_absolute() is perfectly safe.
3377     return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3378
3379     # Here, we know the given file spec isn't absolute
3380     return 0;
3381 }
3382
3383 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
3384 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
3385 # realpath() requires that at least all path components except the last is an
3386 # existing directory.  On VMS, the last component of the directory spec must
3387 # exist.
3388 sub absolutedir {
3389     my $dir = shift;
3390
3391     # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
3392     # will return the volume name for the device, no matter what.  Also,
3393     # it will return an incorrect directory spec if the argument is a
3394     # directory that doesn't exist.
3395     if ($^O eq "VMS") {
3396         return rel2abs($dir);
3397     }
3398
3399     # We use realpath() on Unix, since no other will properly clean out
3400     # a directory spec.
3401     use Cwd qw/realpath/;
3402
3403     return realpath($dir);
3404 }
3405
3406 sub quotify {
3407     my %processors = (
3408         perl    => sub { my $x = shift;
3409                          $x =~ s/([\\\$\@"])/\\$1/g;
3410                          return '"'.$x.'"'; },
3411         maybeshell => sub { my $x = shift;
3412                             (my $y = $x) =~ s/([\\\"])/\\$1/g;
3413                             if ($x ne $y || $x =~ m|\s|) {
3414                                 return '"'.$y.'"';
3415                             } else {
3416                                 return $x;
3417                             }
3418                         },
3419         );
3420     my $for = shift;
3421     my $processor =
3422         defined($processors{$for}) ? $processors{$for} : sub { shift; };
3423
3424     return map { $processor->($_); } @_;
3425 }
3426
3427 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
3428 # $filename is a file name to read from
3429 # $line_concat_cond_re is a regexp detecting a line continuation ending
3430 # $line_concat is a CODEref that takes care of concatenating two lines
3431 sub collect_from_file {
3432     my $filename = shift;
3433     my $line_concat_cond_re = shift;
3434     my $line_concat = shift;
3435
3436     open my $fh, $filename || die "unable to read $filename: $!\n";
3437     return sub {
3438         my $saved_line = "";
3439         $_ = "";
3440         while (<$fh>) {
3441             s|\R$||;
3442             if (defined $line_concat) {
3443                 $_ = $line_concat->($saved_line, $_);
3444                 $saved_line = "";
3445             }
3446             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3447                 $saved_line = $_;
3448                 next;
3449             }
3450             return $_;
3451         }
3452         die "$filename ending with continuation line\n" if $_;
3453         close $fh;
3454         return undef;
3455     }
3456 }
3457
3458 # collect_from_array($array, $line_concat_cond_re, $line_concat)
3459 # $array is an ARRAYref of lines
3460 # $line_concat_cond_re is a regexp detecting a line continuation ending
3461 # $line_concat is a CODEref that takes care of concatenating two lines
3462 sub collect_from_array {
3463     my $array = shift;
3464     my $line_concat_cond_re = shift;
3465     my $line_concat = shift;
3466     my @array = (@$array);
3467
3468     return sub {
3469         my $saved_line = "";
3470         $_ = "";
3471         while (defined($_ = shift @array)) {
3472             s|\R$||;
3473             if (defined $line_concat) {
3474                 $_ = $line_concat->($saved_line, $_);
3475                 $saved_line = "";
3476             }
3477             if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3478                 $saved_line = $_;
3479                 next;
3480             }
3481             return $_;
3482         }
3483         die "input text ending with continuation line\n" if $_;
3484         return undef;
3485     }
3486 }
3487
3488 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3489 # $lineiterator is a CODEref that delivers one line at a time.
3490 # All following arguments are regex/CODEref pairs, where the regexp detects a
3491 # line and the CODEref does something with the result of the regexp.
3492 sub collect_information {
3493     my $lineiterator = shift;
3494     my %collectors = @_;
3495
3496     while(defined($_ = $lineiterator->())) {
3497         s|\R$||;
3498         my $found = 0;
3499         if ($collectors{"BEFORE"}) {
3500             $collectors{"BEFORE"}->($_);
3501         }
3502         foreach my $re (keys %collectors) {
3503             if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3504                 $collectors{$re}->($lineiterator);
3505                 $found = 1;
3506             };
3507         }
3508         if ($collectors{"OTHERWISE"}) {
3509             $collectors{"OTHERWISE"}->($lineiterator, $_)
3510                 unless $found || !defined $collectors{"OTHERWISE"};
3511         }
3512         if ($collectors{"AFTER"}) {
3513             $collectors{"AFTER"}->($_);
3514         }
3515     }
3516 }
3517
3518 # tokenize($line)
3519 # $line is a line of text to split up into tokens
3520 # returns a list of tokens
3521 #
3522 # Tokens are divided by spaces.  If the tokens include spaces, they
3523 # have to be quoted with single or double quotes.  Double quotes
3524 # inside a double quoted token must be escaped.  Escaping is done
3525 # with backslash.
3526 # Basically, the same quoting rules apply for " and ' as in any
3527 # Unix shell.
3528 sub tokenize {
3529     my $line = my $debug_line = shift;
3530     my @result = ();
3531
3532     while ($line =~ s|^\s+||, $line ne "") {
3533         my $token = "";
3534         while ($line ne "" && $line !~ m|^\s|) {
3535             if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3536                 $token .= $1;
3537                 $line = $';
3538             } elsif ($line =~ m/^'([^']*)'/) {
3539                 $token .= $1;
3540                 $line = $';
3541             } elsif ($line =~ m/^(\S+)/) {
3542                 $token .= $1;
3543                 $line = $';
3544             }
3545         }
3546         push @result, $token;
3547     }
3548
3549     if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3550         print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3551         print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3552     }
3553     return @result;
3554 }