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source: vbox/trunk/src/libs/openssl-3.0.3/Configure@ 95218

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libs/openssl: Update to 3.0.2 and switch to it, bugref:10128

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1#! /usr/bin/env perl
2# -*- mode: perl; -*-
3# Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
4#
5# Licensed under the Apache License 2.0 (the "License"). You may not use
6# this file except in compliance with the License. You can obtain a copy
7# in the file LICENSE in the source distribution or at
8# https://www.openssl.org/source/license.html
9
10## Configure -- OpenSSL source tree configuration script
11
12use 5.10.0;
13use strict;
14use Config;
15use FindBin;
16use lib "$FindBin::Bin/util/perl";
17use File::Basename;
18use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs splitdir/;
19use File::Path qw/mkpath/;
20use OpenSSL::fallback "$FindBin::Bin/external/perl/MODULES.txt";
21use OpenSSL::Glob;
22use OpenSSL::Template;
23use OpenSSL::config;
24
25# see INSTALL.md for instructions.
26
27my $orig_death_handler = $SIG{__DIE__};
28$SIG{__DIE__} = \&death_handler;
29
30my $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";
31
32my $banner = <<"EOF";
33
34**********************************************************************
35*** ***
36*** OpenSSL has been successfully configured ***
37*** ***
38*** If you encounter a problem while building, please open an ***
39*** issue on GitHub <https://github.com/openssl/openssl/issues> ***
40*** and include the output from the following command: ***
41*** ***
42*** perl configdata.pm --dump ***
43*** ***
44*** (If you are new to OpenSSL, you might want to consult the ***
45*** 'Troubleshooting' section in the INSTALL.md file first) ***
46*** ***
47**********************************************************************
48EOF
49
50# Options:
51#
52# --config add the given configuration file, which will be read after
53# any "Configurations*" files that are found in the same
54# directory as this script.
55# --prefix prefix for the OpenSSL installation, which includes the
56# directories bin, lib, include, share/man, share/doc/openssl
57# This becomes the value of INSTALLTOP in Makefile
58# (Default: /usr/local)
59# --openssldir OpenSSL data area, such as openssl.cnf, certificates and keys.
60# If it's a relative directory, it will be added on the directory
61# given with --prefix.
62# This becomes the value of OPENSSLDIR in Makefile and in C.
63# (Default: PREFIX/ssl)
64# --banner=".." Output specified text instead of default completion banner
65#
66# -w Don't wait after showing a Configure warning
67#
68# --cross-compile-prefix Add specified prefix to binutils components.
69#
70# --api One of 0.9.8, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, or 3.0
71# Define the public APIs as they were for that version
72# including patch releases. If 'no-deprecated' is also
73# given, do not compile support for interfaces deprecated
74# up to and including the specified OpenSSL version.
75#
76# no-hw-xxx do not compile support for specific crypto hardware.
77# Generic OpenSSL-style methods relating to this support
78# are always compiled but return NULL if the hardware
79# support isn't compiled.
80# no-hw do not compile support for any crypto hardware.
81# [no-]threads [don't] try to create a library that is suitable for
82# multithreaded applications (default is "threads" if we
83# know how to do it)
84# [no-]shared [don't] try to create shared libraries when supported.
85# [no-]pic [don't] try to build position independent code when supported.
86# If disabled, it also disables shared and dynamic-engine.
87# no-asm do not use assembler
88# no-egd do not compile support for the entropy-gathering daemon APIs
89# [no-]zlib [don't] compile support for zlib compression.
90# zlib-dynamic Like "zlib", but the zlib library is expected to be a shared
91# library and will be loaded in run-time by the OpenSSL library.
92# sctp include SCTP support
93# no-uplink Don't build support for UPLINK interface.
94# enable-weak-ssl-ciphers
95# Enable weak ciphers that are disabled by default.
96# 386 generate 80386 code in assembly modules
97# no-sse2 disables IA-32 SSE2 code in assembly modules, the above
98# mentioned '386' option implies this one
99# no-<cipher> build without specified algorithm (dsa, idea, rc5, ...)
100# -<xxx> +<xxx> All options which are unknown to the 'Configure' script are
101# /<xxx> passed through to the compiler. Unix-style options beginning
102# with a '-' or '+' are recognized, as well as Windows-style
103# options beginning with a '/'. If the option contains arguments
104# separated by spaces, then the URL-style notation %20 can be
105# used for the space character in order to avoid having to quote
106# the option. For example, -opt%20arg gets expanded to -opt arg.
107# In fact, any ASCII character can be encoded as %xx using its
108# hexadecimal encoding.
109# -static while -static is also a pass-through compiler option (and
110# as such is limited to environments where it's actually
111# meaningful), it triggers a number configuration options,
112# namely no-pic, no-shared and no-threads. It is
113# argued that the only reason to produce statically linked
114# binaries (and in context it means executables linked with
115# -static flag, and not just executables linked with static
116# libcrypto.a) is to eliminate dependency on specific run-time,
117# a.k.a. libc version. The mentioned config options are meant
118# to achieve just that. Unfortunately on Linux it's impossible
119# to eliminate the dependency completely for openssl executable
120# because of getaddrinfo and gethostbyname calls, which can
121# invoke dynamically loadable library facility anyway to meet
122# the lookup requests. For this reason on Linux statically
123# linked openssl executable has rather debugging value than
124# production quality.
125#
126# BN_LLONG use the type 'long long' in crypto/bn/bn.h
127# RC4_CHAR use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
128# Following are set automatically by this script
129#
130# MD5_ASM use some extra md5 assembler,
131# SHA1_ASM use some extra sha1 assembler, must define L_ENDIAN for x86
132# RMD160_ASM use some extra ripemd160 assembler,
133# SHA256_ASM sha256_block is implemented in assembler
134# SHA512_ASM sha512_block is implemented in assembler
135# AES_ASM AES_[en|de]crypt is implemented in assembler
136
137# Minimum warning options... any contributions to OpenSSL should at least
138# get past these. Note that we only use these with C compilers, not with
139# C++ compilers.
140
141# -DPEDANTIC complements -pedantic and is meant to mask code that
142# is not strictly standard-compliant and/or implementation-specific,
143# e.g. inline assembly, disregards to alignment requirements, such
144# that -pedantic would complain about. Incidentally -DPEDANTIC has
145# to be used even in sanitized builds, because sanitizer too is
146# supposed to and does take notice of non-standard behaviour. Then
147# -pedantic with pre-C9x compiler would also complain about 'long
148# long' not being supported. As 64-bit algorithms are common now,
149# it grew impossible to resolve this without sizeable additional
150# code, so we just tell compiler to be pedantic about everything
151# but 'long long' type.
152
153my @gcc_devteam_warn = qw(
154 -DPEDANTIC -pedantic -Wno-long-long -DUNUSEDRESULT_DEBUG
155 -Wall
156 -Wmissing-declarations
157 -Wextra
158 -Wno-unused-parameter
159 -Wno-missing-field-initializers
160 -Wswitch
161 -Wsign-compare
162 -Wshadow
163 -Wformat
164 -Wtype-limits
165 -Wundef
166 -Werror
167 -Wmissing-prototypes
168 -Wstrict-prototypes
169);
170
171# These are used in addition to $gcc_devteam_warn when the compiler is clang.
172# TODO(openssl-team): fix problems and investigate if (at least) the
173# following warnings can also be enabled:
174# -Wcast-align
175# -Wunreachable-code -- no, too ugly/compiler-specific
176# -Wlanguage-extension-token -- no, we use asm()
177# -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
178# -Wextended-offsetof -- no, needed in CMS ASN1 code
179my @clang_devteam_warn = qw(
180 -Wno-unknown-warning-option
181 -Wswitch-default
182 -Wno-parentheses-equality
183 -Wno-language-extension-token
184 -Wno-extended-offsetof
185 -Wconditional-uninitialized
186 -Wincompatible-pointer-types-discards-qualifiers
187 -Wmissing-variable-declarations
188);
189
190my @cl_devteam_warn = qw(
191 /WX
192);
193
194my $strict_warnings = 0;
195
196# As for $BSDthreads. Idea is to maintain "collective" set of flags,
197# which would cover all BSD flavors. -pthread applies to them all,
198# but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
199# -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
200# which has to be accompanied by explicit -D_THREAD_SAFE and
201# sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
202# seems to be sufficient?
203our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
204
205#
206# API compatibility name to version number mapping.
207#
208my $apitable = {
209 # This table expresses when API additions or changes can occur.
210 # The numbering used changes from 3.0 and on because we updated
211 # (solidified) our version numbering scheme at that point.
212
213 # From 3.0 and on, we internalise the given version number in decimal
214 # as MAJOR * 10000 + MINOR * 100 + 0
215 "3.0.0" => 30000,
216 "3.0" => 30000,
217
218 # Note that before 3.0, we didn't have the same version number scheme.
219 # Still, the numbering we use here covers what we need.
220 "1.1.1" => 10101,
221 "1.1.0" => 10100,
222 "1.0.2" => 10002,
223 "1.0.1" => 10001,
224 "1.0.0" => 10000,
225 "0.9.8" => 908,
226};
227
228# For OpenSSL::config::get_platform
229my %guess_opts = ();
230
231my $dryrun = 0;
232
233our %table = ();
234our %config = ();
235our %withargs = ();
236our $now_printing; # set to current entry's name in print_table_entry
237 # (todo: right thing would be to encapsulate name
238 # into %target [class] and make print_table_entry
239 # a method)
240
241# Forward declarations ###############################################
242
243# read_config(filename)
244#
245# Reads a configuration file and populates %table with the contents
246# (which the configuration file places in %targets).
247sub read_config;
248
249# resolve_config(target)
250#
251# Resolves all the late evaluations, inheritances and so on for the
252# chosen target and any target it inherits from.
253sub resolve_config;
254
255
256# Information collection #############################################
257
258# Unified build supports separate build dir
259my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
260my $blddir = catdir(absolutedir(".")); # catdir ensures local syntax
261
262# File::Spec::Unix doesn't detect case insensitivity, so we make sure to
263# check if the source and build directory are really the same, and make
264# them so. This avoids all kinds of confusion later on.
265# We must check @File::Spec::ISA rather than using File::Spec->isa() to
266# know if File::Spec ended up loading File::Spec::Unix.
267$srcdir = $blddir
268 if (grep(/::Unix$/, @File::Spec::ISA)
269 && samedir($srcdir, $blddir));
270
271my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
272
273my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
274
275$config{sourcedir} = abs2rel($srcdir, $blddir);
276$config{builddir} = abs2rel($blddir, $blddir);
277# echo -n 'holy hand grenade of antioch' | openssl sha256
278$config{FIPSKEY} =
279 'f4556650ac31d35461610bac4ed81b1a181b2d8a43ea2854cbae22ca74560813';
280
281# Collect reconfiguration information if needed
282my @argvcopy=@ARGV;
283
284if (grep /^reconf(igure)?$/, @argvcopy) {
285 die "reconfiguring with other arguments present isn't supported"
286 if scalar @argvcopy > 1;
287 if (-f "./configdata.pm") {
288 my $file = "./configdata.pm";
289 unless (my $return = do $file) {
290 die "couldn't parse $file: $@" if $@;
291 die "couldn't do $file: $!" unless defined $return;
292 die "couldn't run $file" unless $return;
293 }
294
295 @argvcopy = defined($configdata::config{perlargv}) ?
296 @{$configdata::config{perlargv}} : ();
297 die "Incorrect data to reconfigure, please do a normal configuration\n"
298 if (grep(/^reconf/,@argvcopy));
299 $config{perlenv} = $configdata::config{perlenv} // {};
300 } else {
301 die "Insufficient data to reconfigure, please do a normal configuration\n";
302 }
303}
304
305$config{perlargv} = [ @argvcopy ];
306
307# Historical: if known directories in crypto/ have been removed, it means
308# that those sub-systems are disabled.
309# (the other option would be to removed them from the SUBDIRS statement in
310# crypto/build.info)
311# We reverse the input list for cosmetic purely reasons, to compensate that
312# 'unshift' adds at the front of the list (i.e. in reverse input order).
313foreach ( reverse sort( 'aes', 'aria', 'bf', 'camellia', 'cast', 'des', 'dh',
314 'dsa', 'ec', 'hmac', 'idea', 'md2', 'md5', 'mdc2',
315 'rc2', 'rc4', 'rc5', 'ripemd', 'seed', 'sha',
316 'sm2', 'sm3', 'sm4') ) {
317 unshift @argvcopy, "no-$_" if ! -d catdir($srcdir, 'crypto', $_);
318}
319
320# Collect version numbers
321my %version = ();
322
323collect_information(
324 collect_from_file(catfile($srcdir,'VERSION.dat')),
325 qr/\s*(\w+)\s*=\s*(.*?)\s*$/ =>
326 sub {
327 # Only define it if there is a value at all
328 if ($2 ne '') {
329 my $k = $1;
330 my $v = $2;
331 # Some values are quoted. Trim the quotes
332 $v = $1 if $v =~ /^"(.*)"$/;
333 $version{uc $k} = $v;
334 }
335 },
336 "OTHERWISE" =>
337 sub { die "Something wrong with this line:\n$_\nin $srcdir/VERSION.dat" },
338 );
339
340$config{major} = $version{MAJOR} // 'unknown';
341$config{minor} = $version{MINOR} // 'unknown';
342$config{patch} = $version{PATCH} // 'unknown';
343$config{prerelease} =
344 defined $version{PRE_RELEASE_TAG} ? "-$version{PRE_RELEASE_TAG}" : '';
345$config{build_metadata} =
346 defined $version{BUILD_METADATA} ? "+$version{BUILD_METADATA}" : '';
347$config{shlib_version} = $version{SHLIB_VERSION} // 'unknown';
348$config{release_date} = $version{RELEASE_DATE} // 'xx XXX xxxx';
349
350$config{version} = "$config{major}.$config{minor}.$config{patch}";
351$config{full_version} = "$config{version}$config{prerelease}$config{build_metadata}";
352
353die "erroneous version information in VERSION.dat: ",
354 "$config{version}, $config{shlib_version}\n"
355 unless (defined $version{MAJOR}
356 && defined $version{MINOR}
357 && defined $version{PATCH}
358 && defined $version{SHLIB_VERSION});
359
360# Collect target configurations
361
362my $pattern = catfile(dirname($0), "Configurations", "*.conf");
363foreach (sort glob($pattern)) {
364 &read_config($_);
365}
366
367if (defined env($local_config_envname)) {
368 if ($^O eq 'VMS') {
369 # VMS environment variables are logical names,
370 # which can be used as is
371 $pattern = $local_config_envname . ':' . '*.conf';
372 } else {
373 $pattern = catfile(env($local_config_envname), '*.conf');
374 }
375
376 foreach (sort glob($pattern)) {
377 &read_config($_);
378 }
379}
380
381# Save away perl command information
382$config{perl_cmd} = $^X;
383$config{perl_version} = $Config{version};
384$config{perl_archname} = $Config{archname};
385
386$config{prefix}="";
387$config{openssldir}="";
388$config{processor}="";
389$config{libdir}="";
390my $auto_threads=1; # enable threads automatically? true by default
391my $default_ranlib;
392
393# Known TLS and DTLS protocols
394my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
395my @dtls = qw(dtls1 dtls1_2);
396
397# Explicitly known options that are possible to disable. They can
398# be regexps, and will be used like this: /^no-${option}$/
399# For developers: keep it sorted alphabetically
400
401my @disablables = (
402 "acvp-tests",
403 "afalgeng",
404 "aria",
405 "asan",
406 "asm",
407 "async",
408 "autoalginit",
409 "autoerrinit",
410 "autoload-config",
411 "bf",
412 "blake2",
413 "buildtest-c++",
414 "bulk",
415 "cached-fetch",
416 "camellia",
417 "capieng",
418 "cast",
419 "chacha",
420 "cmac",
421 "cmp",
422 "cms",
423 "comp",
424 "crypto-mdebug",
425 "ct",
426 "deprecated",
427 "des",
428 "devcryptoeng",
429 "dgram",
430 "dh",
431 "dsa",
432 "dso",
433 "dtls",
434 "dynamic-engine",
435 "ec",
436 "ec2m",
437 "ec_nistp_64_gcc_128",
438 "ecdh",
439 "ecdsa",
440 "egd",
441 "engine",
442 "err",
443 "external-tests",
444 "filenames",
445 "fips",
446 "fips-securitychecks",
447 "fuzz-afl",
448 "fuzz-libfuzzer",
449 "gost",
450 "idea",
451 "ktls",
452 "legacy",
453 "loadereng",
454 "makedepend",
455 "md2",
456 "md4",
457 "mdc2",
458 "module",
459 "msan",
460 "multiblock",
461 "nextprotoneg",
462 "ocb",
463 "ocsp",
464 "padlockeng",
465 "pic",
466 "pinshared",
467 "poly1305",
468 "posix-io",
469 "psk",
470 "rc2",
471 "rc4",
472 "rc5",
473 "rdrand",
474 "rfc3779",
475 "rmd160",
476 "scrypt",
477 "sctp",
478 "secure-memory",
479 "seed",
480 "shared",
481 "siphash",
482 "siv",
483 "sm2",
484 "sm3",
485 "sm4",
486 "sock",
487 "srp",
488 "srtp",
489 "sse2",
490 "ssl",
491 "ssl-trace",
492 "static-engine",
493 "stdio",
494 "tests",
495 "threads",
496 "tls",
497 "trace",
498 "ts",
499 "ubsan",
500 "ui-console",
501 "unit-test",
502 "uplink",
503 "weak-ssl-ciphers",
504 "whirlpool",
505 "zlib",
506 "zlib-dynamic",
507 );
508foreach my $proto ((@tls, @dtls))
509 {
510 push(@disablables, $proto);
511 push(@disablables, "$proto-method") unless $proto eq "tls1_3";
512 }
513
514# Internal disablables, for aliasing purposes. They serve no special
515# purpose here, but allow scripts to get to know them through configdata.pm,
516# where these are merged with @disablables.
517# The actual aliasing mechanism is done via %disable_cascades
518my @disablables_int = qw(
519 crmf
520 );
521
522my %deprecated_disablables = (
523 "ssl2" => undef,
524 "buf-freelists" => undef,
525 "crypto-mdebug-backtrace" => undef,
526 "hw" => "hw", # causes cascade, but no macro
527 "hw-padlock" => "padlockeng",
528 "ripemd" => "rmd160",
529 "ui" => "ui-console",
530 "heartbeats" => undef,
531 );
532
533# All of the following are disabled by default:
534
535our %disabled = ( # "what" => "comment"
536 "fips" => "default",
537 "asan" => "default",
538 "buildtest-c++" => "default",
539 "crypto-mdebug" => "default",
540 "crypto-mdebug-backtrace" => "default",
541 "devcryptoeng" => "default",
542 "ec_nistp_64_gcc_128" => "default",
543 "egd" => "default",
544 "external-tests" => "default",
545 "fuzz-afl" => "default",
546 "fuzz-libfuzzer" => "default",
547 "ktls" => "default",
548 "md2" => "default",
549 "msan" => "default",
550 "rc5" => "default",
551 "sctp" => "default",
552 "ssl3" => "default",
553 "ssl3-method" => "default",
554 "trace" => "default",
555 "ubsan" => "default",
556 "unit-test" => "default",
557 "weak-ssl-ciphers" => "default",
558 "zlib" => "default",
559 "zlib-dynamic" => "default",
560 );
561
562# Note: => pair form used for aesthetics, not to truly make a hash table
563my @disable_cascades = (
564 # "what" => [ "cascade", ... ]
565 "bulk" => [ "shared", "dso",
566 "aria", "async", "autoload-config",
567 "blake2", "bf", "camellia", "cast", "chacha",
568 "cmac", "cms", "cmp", "comp", "ct",
569 "des", "dgram", "dh", "dsa",
570 "ec", "engine",
571 "filenames",
572 "idea", "ktls",
573 "md4", "multiblock", "nextprotoneg",
574 "ocsp", "ocb", "poly1305", "psk",
575 "rc2", "rc4", "rmd160",
576 "seed", "siphash", "siv",
577 "sm3", "sm4", "srp",
578 "srtp", "ssl3-method", "ssl-trace",
579 "ts", "ui-console", "whirlpool",
580 "fips-securitychecks" ],
581 sub { $config{processor} eq "386" }
582 => [ "sse2" ],
583 "ssl" => [ "ssl3" ],
584 "ssl3-method" => [ "ssl3" ],
585 "zlib" => [ "zlib-dynamic" ],
586 "des" => [ "mdc2" ],
587 "ec" => [ "ec2m", "ecdsa", "ecdh", "sm2", "gost" ],
588 "dgram" => [ "dtls", "sctp" ],
589 "sock" => [ "dgram" ],
590 "dtls" => [ @dtls ],
591 sub { 0 == scalar grep { !$disabled{$_} } @dtls }
592 => [ "dtls" ],
593
594 "tls" => [ @tls ],
595 sub { 0 == scalar grep { !$disabled{$_} } @tls }
596 => [ "tls" ],
597
598 "crypto-mdebug" => [ "crypto-mdebug-backtrace" ],
599
600 # If no modules, then no dynamic engines either
601 "module" => [ "dynamic-engine" ],
602
603 # Without shared libraries, dynamic engines aren't possible.
604 # This is due to them having to link with libcrypto and register features
605 # using the ENGINE functionality, and since that relies on global tables,
606 # those *have* to be exacty the same as the ones accessed from the app,
607 # which cannot be guaranteed if shared libraries aren't present.
608 # (note that even with shared libraries, both the app and dynamic engines
609 # must be linked with the same library)
610 "shared" => [ "dynamic-engine", "uplink" ],
611 "dso" => [ "dynamic-engine", "module" ],
612 # Other modules don't necessarily have to link with libcrypto, so shared
613 # libraries do not have to be a condition to produce those.
614
615 # Without position independent code, there can be no shared libraries
616 # or modules.
617 "pic" => [ "shared", "module" ],
618
619 "module" => [ "fips", "dso" ],
620
621 "engine" => [ "dynamic-engine", grep(/eng$/, @disablables) ],
622 "dynamic-engine" => [ "loadereng" ],
623 "hw" => [ "padlockeng" ],
624
625 # no-autoalginit is only useful when building non-shared
626 "autoalginit" => [ "shared", "apps", "fips" ],
627
628 "stdio" => [ "apps", "capieng", "egd" ],
629 "apps" => [ "tests" ],
630 "tests" => [ "external-tests" ],
631 "comp" => [ "zlib" ],
632 "sm3" => [ "sm2" ],
633 sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
634
635 sub { !$disabled{"msan"} } => [ "asm" ],
636
637 "cmac" => [ "siv" ],
638 "legacy" => [ "md2" ],
639
640 "cmp" => [ "crmf" ],
641
642 "fips" => [ "fips-securitychecks", "acvp-tests" ],
643
644 "deprecated-3.0" => [ "engine", "srp" ]
645 );
646
647# Avoid protocol support holes. Also disable all versions below N, if version
648# N is disabled while N+1 is enabled.
649#
650my @list = (reverse @tls);
651while ((my $first, my $second) = (shift @list, shift @list)) {
652 last unless @list;
653 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
654 => [ @list ] );
655 unshift @list, $second;
656}
657my @list = (reverse @dtls);
658while ((my $first, my $second) = (shift @list, shift @list)) {
659 last unless @list;
660 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
661 => [ @list ] );
662 unshift @list, $second;
663}
664
665# Explicit "no-..." options will be collected in %disabled along with the defaults.
666# To remove something from %disabled, use "enable-foo".
667# For symmetry, "disable-foo" is a synonym for "no-foo".
668
669# For the "make variables" CPPINCLUDES and CPPDEFINES, we support lists with
670# platform specific list separators. Users from those platforms should
671# recognise those separators from how you set up the PATH to find executables.
672# The default is the Unix like separator, :, but as an exception, we also
673# support the space as separator.
674my $list_separator_re =
675 { VMS => qr/(?<!\^),/,
676 MSWin32 => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
677# All the "make variables" we support
678# Some get pre-populated for the sake of backward compatibility
679# (we supported those before the change to "make variable" support.
680my %user = (
681 AR => env('AR'),
682 ARFLAGS => [],
683 AS => undef,
684 ASFLAGS => [],
685 CC => env('CC'),
686 CFLAGS => [ env('CFLAGS') || () ],
687 CXX => env('CXX'),
688 CXXFLAGS => [ env('CXXFLAGS') || () ],
689 CPP => undef,
690 CPPFLAGS => [ env('CPPFLAGS') || () ], # -D, -I, -Wp,
691 CPPDEFINES => [], # Alternative for -D
692 CPPINCLUDES => [], # Alternative for -I
693 CROSS_COMPILE => env('CROSS_COMPILE'),
694 HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
695 LD => undef,
696 LDFLAGS => [ env('LDFLAGS') || () ], # -L, -Wl,
697 LDLIBS => [ env('LDLIBS') || () ], # -l
698 MT => undef,
699 MTFLAGS => [],
700 PERL => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
701 RANLIB => env('RANLIB'),
702 RC => env('RC') || env('WINDRES'),
703 RCFLAGS => [ env('RCFLAGS') || () ],
704 RM => undef,
705 );
706# Info about what "make variables" may be prefixed with the cross compiler
707# prefix. This should NEVER mention any such variable with a list for value.
708my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
709# The same but for flags given as Configure options. These are *additional*
710# input, as opposed to the VAR=string option that override the corresponding
711# config target attributes
712my %useradd = (
713 CPPDEFINES => [],
714 CPPINCLUDES => [],
715 CPPFLAGS => [],
716 CFLAGS => [],
717 CXXFLAGS => [],
718 LDFLAGS => [],
719 LDLIBS => [],
720 RCFLAGS => [],
721 );
722
723my %user_synonyms = (
724 HASHBANGPERL=> 'PERL',
725 RC => 'WINDRES',
726 );
727
728# Some target attributes have been renamed, this is the translation table
729my %target_attr_translate =(
730 ar => 'AR',
731 as => 'AS',
732 cc => 'CC',
733 cxx => 'CXX',
734 cpp => 'CPP',
735 hashbangperl => 'HASHBANGPERL',
736 ld => 'LD',
737 mt => 'MT',
738 ranlib => 'RANLIB',
739 rc => 'RC',
740 rm => 'RM',
741 );
742
743# Initialisers coming from 'config' scripts
744$config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
745$config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
746$config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
747$config{cflags} = [ env('__CNF_CFLAGS') || () ];
748$config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
749$config{lflags} = [ env('__CNF_LDFLAGS') || () ];
750$config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
751
752$config{openssl_api_defines}=[];
753$config{openssl_sys_defines}=[];
754$config{openssl_feature_defines}=[];
755$config{options}="";
756$config{build_type} = "release";
757my $target="";
758
759my %cmdvars = (); # Stores FOO='blah' type arguments
760my %unsupported_options = ();
761my %deprecated_options = ();
762# If you change this, update apps/version.c
763my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
764my @seed_sources = ();
765while (@argvcopy)
766 {
767 $_ = shift @argvcopy;
768
769 # Support env variable assignments among the options
770 if (m|^(\w+)=(.+)?$|)
771 {
772 $cmdvars{$1} = $2;
773 # Every time a variable is given as a configuration argument,
774 # it acts as a reset if the variable.
775 if (exists $user{$1})
776 {
777 $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
778 }
779 #if (exists $useradd{$1})
780 # {
781 # $useradd{$1} = [];
782 # }
783 next;
784 }
785
786 # VMS is a case insensitive environment, and depending on settings
787 # out of our control, we may receive options uppercased. Let's
788 # downcase at least the part before any equal sign.
789 if ($^O eq "VMS")
790 {
791 s/^([^=]*)/lc($1)/e;
792 }
793
794 # some people just can't read the instructions, clang people have to...
795 s/^-no-(?!integrated-as)/no-/;
796
797 # rewrite some options in "enable-..." form
798 s /^-?-?shared$/enable-shared/;
799 s /^sctp$/enable-sctp/;
800 s /^threads$/enable-threads/;
801 s /^zlib$/enable-zlib/;
802 s /^zlib-dynamic$/enable-zlib-dynamic/;
803 s /^fips$/enable-fips/;
804
805 if (/^(no|disable|enable)-(.+)$/)
806 {
807 my $word = $2;
808 if ($word !~ m|hw(?:-.+)| # special treatment for hw regexp opt
809 && !exists $deprecated_disablables{$word}
810 && !grep { $word eq $_ } @disablables)
811 {
812 $unsupported_options{$_} = 1;
813 next;
814 }
815 }
816 if (/^no-(.+)$/ || /^disable-(.+)$/)
817 {
818 foreach my $proto ((@tls, @dtls))
819 {
820 if ($1 eq "$proto-method")
821 {
822 $disabled{"$proto"} = "option($proto-method)";
823 last;
824 }
825 }
826 if ($1 eq "dtls")
827 {
828 foreach my $proto (@dtls)
829 {
830 $disabled{$proto} = "option(dtls)";
831 }
832 $disabled{"dtls"} = "option(dtls)";
833 }
834 elsif ($1 eq "ssl")
835 {
836 # Last one of its kind
837 $disabled{"ssl3"} = "option(ssl)";
838 }
839 elsif ($1 eq "tls")
840 {
841 # XXX: Tests will fail if all SSL/TLS
842 # protocols are disabled.
843 foreach my $proto (@tls)
844 {
845 $disabled{$proto} = "option(tls)";
846 }
847 }
848 elsif ($1 eq "static-engine")
849 {
850 delete $disabled{"dynamic-engine"};
851 }
852 elsif ($1 eq "dynamic-engine")
853 {
854 $disabled{"dynamic-engine"} = "option";
855 }
856 elsif (exists $deprecated_disablables{$1})
857 {
858 $deprecated_options{$_} = 1;
859 if (defined $deprecated_disablables{$1})
860 {
861 $disabled{$deprecated_disablables{$1}} = "option";
862 }
863 }
864 elsif ($1 =~ m|hw(?:-.+)|) # deprecate hw options in regexp form
865 {
866 $deprecated_options{$_} = 1;
867 }
868 else
869 {
870 $disabled{$1} = "option";
871 }
872 # No longer an automatic choice
873 $auto_threads = 0 if ($1 eq "threads");
874 }
875 elsif (/^enable-(.+)$/)
876 {
877 if ($1 eq "static-engine")
878 {
879 $disabled{"dynamic-engine"} = "option";
880 }
881 elsif ($1 eq "dynamic-engine")
882 {
883 delete $disabled{"dynamic-engine"};
884 }
885 elsif ($1 eq "zlib-dynamic")
886 {
887 delete $disabled{"zlib"};
888 }
889 my $algo = $1;
890 delete $disabled{$algo};
891
892 # No longer an automatic choice
893 $auto_threads = 0 if ($1 eq "threads");
894 }
895 elsif (/^-d$/) # From older 'config'
896 {
897 $config{build_type} = "debug";
898 }
899 elsif (/^-v$/) # From older 'config'
900 {
901 $guess_opts{verbose} = 1;
902 }
903 elsif (/^-w$/)
904 {
905 $guess_opts{nowait} = 1;
906 }
907 elsif (/^-t$/) # From older 'config'
908 {
909 $dryrun = 1;
910 }
911 elsif (/^--strict-warnings$/)
912 {
913 # Pretend that our strict flags is a C flag, and replace it
914 # with the proper flags later on
915 push @{$useradd{CFLAGS}}, '--ossl-strict-warnings';
916 $strict_warnings=1;
917 }
918 elsif (/^--debug$/)
919 {
920 $config{build_type} = "debug";
921 }
922 elsif (/^--release$/)
923 {
924 $config{build_type} = "release";
925 }
926 elsif (/^386$/)
927 { $config{processor}=386; }
928 elsif (/^rsaref$/)
929 {
930 # No RSAref support any more since it's not needed.
931 # The check for the option is there so scripts aren't
932 # broken
933 }
934 elsif (m|^[-+/]|)
935 {
936 if (/^--prefix=(.*)$/)
937 {
938 $config{prefix}=$1;
939 die "Directory given with --prefix MUST be absolute\n"
940 unless file_name_is_absolute($config{prefix});
941 }
942 elsif (/^--api=(.*)$/)
943 {
944 my $api = $1;
945 die "Unknown API compatibility level $api"
946 unless defined $apitable->{$api};
947 $config{api}=$apitable->{$api};
948 }
949 elsif (/^--libdir=(.*)$/)
950 {
951 $config{libdir}=$1;
952 }
953 elsif (/^--openssldir=(.*)$/)
954 {
955 $config{openssldir}=$1;
956 }
957 elsif (/^--with-zlib-lib=(.*)$/)
958 {
959 $withargs{zlib_lib}=$1;
960 }
961 elsif (/^--with-zlib-include=(.*)$/)
962 {
963 $withargs{zlib_include}=$1;
964 }
965 elsif (/^--with-fuzzer-lib=(.*)$/)
966 {
967 $withargs{fuzzer_lib}=$1;
968 }
969 elsif (/^--with-fuzzer-include=(.*)$/)
970 {
971 $withargs{fuzzer_include}=$1;
972 }
973 elsif (/^--with-rand-seed=(.*)$/)
974 {
975 foreach my $x (split(m|,|, $1))
976 {
977 die "Unknown --with-rand-seed choice $x\n"
978 if ! grep { $x eq $_ } @known_seed_sources;
979 push @seed_sources, $x;
980 }
981 }
982 elsif (/^--fips-key=(.*)$/)
983 {
984 $user{FIPSKEY}=lc($1);
985 die "Non-hex character in FIPS key\n"
986 if $user{FIPSKEY} =~ /[^a-f0-9]/;
987 die "FIPS key must have even number of characters\n"
988 if length $1 & 1;
989 die "FIPS key too long (64 bytes max)\n"
990 if length $1 > 64;
991 }
992 elsif (/^--banner=(.*)$/)
993 {
994 $banner = $1 . "\n";
995 }
996 elsif (/^--cross-compile-prefix=(.*)$/)
997 {
998 $user{CROSS_COMPILE}=$1;
999 }
1000 elsif (/^--config=(.*)$/)
1001 {
1002 read_config $1;
1003 }
1004 elsif (/^-l(.*)$/)
1005 {
1006 push @{$useradd{LDLIBS}}, $_;
1007 }
1008 elsif (/^-framework$/)
1009 {
1010 push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
1011 }
1012 elsif (/^-L(.*)$/ or /^-Wl,/)
1013 {
1014 push @{$useradd{LDFLAGS}}, $_;
1015 }
1016 elsif (/^-rpath$/ or /^-R$/)
1017 # -rpath is the OSF1 rpath flag
1018 # -R is the old Solaris rpath flag
1019 {
1020 my $rpath = shift(@argvcopy) || "";
1021 $rpath .= " " if $rpath ne "";
1022 push @{$useradd{LDFLAGS}}, $_, $rpath;
1023 }
1024 elsif (/^-static$/)
1025 {
1026 push @{$useradd{LDFLAGS}}, $_;
1027 }
1028 elsif (m|^[-/]D(.*)$|)
1029 {
1030 push @{$useradd{CPPDEFINES}}, $1;
1031 }
1032 elsif (m|^[-/]I(.*)$|)
1033 {
1034 push @{$useradd{CPPINCLUDES}}, $1;
1035 }
1036 elsif (/^-Wp,$/)
1037 {
1038 push @{$useradd{CPPFLAGS}}, $1;
1039 }
1040 else # common if (/^[-+]/), just pass down...
1041 {
1042 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
1043 # This provides a simple way to pass options with arguments separated
1044 # by spaces without quoting (e.g. -opt%20arg translates to -opt arg).
1045 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
1046 push @{$useradd{CFLAGS}}, $_;
1047 push @{$useradd{CXXFLAGS}}, $_;
1048 }
1049 }
1050 elsif (m|^/|)
1051 {
1052 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
1053 # This provides a simple way to pass options with arguments separated
1054 # by spaces without quoting (e.g. /opt%20arg translates to /opt arg).
1055 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
1056 push @{$useradd{CFLAGS}}, $_;
1057 push @{$useradd{CXXFLAGS}}, $_;
1058 }
1059 else
1060 {
1061 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
1062 $target=$_;
1063 }
1064 unless ($_ eq $target || /^no-/ || /^disable-/)
1065 {
1066 # "no-..." follows later after implied deactivations
1067 # have been derived. (Don't take this too seriously,
1068 # we really only write OPTIONS to the Makefile out of
1069 # nostalgia.)
1070
1071 if ($config{options} eq "")
1072 { $config{options} = $_; }
1073 else
1074 { $config{options} .= " ".$_; }
1075 }
1076 }
1077
1078if (keys %deprecated_options)
1079 {
1080 warn "***** Deprecated options: ",
1081 join(", ", keys %deprecated_options), "\n";
1082 }
1083if (keys %unsupported_options)
1084 {
1085 die "***** Unsupported options: ",
1086 join(", ", keys %unsupported_options), "\n";
1087 }
1088
1089# If any %useradd entry has been set, we must check that the "make
1090# variables" haven't been set. We start by checking of any %useradd entry
1091# is set.
1092if (grep { scalar @$_ > 0 } values %useradd) {
1093 # Hash of env / make variables names. The possible values are:
1094 # 1 - "make vars"
1095 # 2 - %useradd entry set
1096 # 3 - both set
1097 my %detected_vars =
1098 map { my $v = 0;
1099 $v += 1 if $cmdvars{$_};
1100 $v += 2 if @{$useradd{$_}};
1101 $_ => $v }
1102 keys %useradd;
1103
1104 # If any of the corresponding "make variables" is set, we error
1105 if (grep { $_ & 1 } values %detected_vars) {
1106 my $names = join(', ', grep { $detected_vars{$_} > 0 }
1107 sort keys %detected_vars);
1108 die <<"_____";
1109***** Mixing make variables and additional compiler/linker flags as
1110***** configure command line option is not permitted.
1111***** Affected make variables: $names
1112_____
1113 }
1114}
1115
1116# Check through all supported command line variables to see if any of them
1117# were set, and canonicalise the values we got. If no compiler or linker
1118# flag or anything else that affects %useradd was set, we also check the
1119# environment for values.
1120my $anyuseradd =
1121 grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
1122foreach (keys %user) {
1123 my $value = $cmdvars{$_};
1124 $value //= env($_) unless $anyuseradd;
1125 $value //=
1126 defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
1127 $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
1128 unless $anyuseradd;
1129
1130 if (defined $value) {
1131 if (ref $user{$_} eq 'ARRAY') {
1132 if ($_ eq 'CPPDEFINES' || $_ eq 'CPPINCLUDES') {
1133 $user{$_} = [ split /$list_separator_re/, $value ];
1134 } else {
1135 $user{$_} = [ $value ];
1136 }
1137 } elsif (!defined $user{$_}) {
1138 $user{$_} = $value;
1139 }
1140 }
1141}
1142
1143if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
1144 && !$disabled{shared}
1145 && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
1146 die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
1147 "***** any of asan, msan or ubsan\n";
1148}
1149
1150# If no target was given, try guessing.
1151unless ($target) {
1152 my %system_config = OpenSSL::config::get_platform(%guess_opts, %user);
1153
1154 # The $system_config{disable} is used to populate %disabled with
1155 # entries that aren't already there.
1156 foreach ( @{$system_config{disable} // []} ) {
1157 $disabled{$_} = 'system' unless defined $disabled{$_};
1158 }
1159 delete $system_config{disable};
1160
1161 # Override config entries with stuff from the guesser.
1162 # It's assumed that this really is nothing new.
1163 %config = ( %config, %system_config );
1164 $target = $system_config{target};
1165}
1166
1167sub disable {
1168 my $disable_type = shift;
1169
1170 for (@_) {
1171 $disabled{$_} = $disable_type;
1172 }
1173
1174 my @tocheckfor = (@_ ? @_ : keys %disabled);
1175 while (@tocheckfor) {
1176 my %new_tocheckfor = ();
1177 my @cascade_copy = (@disable_cascades);
1178 while (@cascade_copy) {
1179 my ($test, $descendents) =
1180 (shift @cascade_copy, shift @cascade_copy);
1181 if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
1182 foreach (grep { !defined($disabled{$_}) } @$descendents) {
1183 $new_tocheckfor{$_} = 1; $disabled{$_} = "cascade";
1184 }
1185 }
1186 }
1187 @tocheckfor = (keys %new_tocheckfor);
1188 }
1189}
1190disable(); # First cascade run
1191
1192our $die = sub { die @_; };
1193if ($target eq "TABLE") {
1194 local $die = sub { warn @_; };
1195 foreach (sort keys %table) {
1196 print_table_entry($_, "TABLE");
1197 }
1198 exit 0;
1199}
1200
1201if ($target eq "LIST") {
1202 foreach (sort keys %table) {
1203 print $_,"\n" unless $table{$_}->{template};
1204 }
1205 exit 0;
1206}
1207
1208if ($target eq "HASH") {
1209 local $die = sub { warn @_; };
1210 print "%table = (\n";
1211 foreach (sort keys %table) {
1212 print_table_entry($_, "HASH");
1213 }
1214 exit 0;
1215}
1216
1217print "Configuring OpenSSL version $config{full_version} ";
1218print "for target $target\n";
1219
1220if (scalar(@seed_sources) == 0) {
1221 print "Using os-specific seed configuration\n";
1222 push @seed_sources, 'os';
1223}
1224if (scalar(grep { $_ eq 'egd' } @seed_sources) > 0) {
1225 delete $disabled{'egd'};
1226}
1227if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1228 die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1229 warn <<_____ if scalar(@seed_sources) == 1;
1230
1231============================== WARNING ===============================
1232You have selected the --with-rand-seed=none option, which effectively
1233disables automatic reseeding of the OpenSSL random generator.
1234All operations depending on the random generator such as creating keys
1235will not work unless the random generator is seeded manually by the
1236application.
1237
1238Please read the 'Note on random number generation' section in the
1239INSTALL.md instructions and the RAND_DRBG(7) manual page for more
1240details.
1241============================== WARNING ===============================
1242
1243_____
1244}
1245push @{$config{openssl_feature_defines}},
1246 map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1247 @seed_sources;
1248
1249# Backward compatibility?
1250if ($target =~ m/^CygWin32(-.*)$/) {
1251 $target = "Cygwin".$1;
1252}
1253
1254# Support for legacy targets having a name starting with 'debug-'
1255my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1256if ($d) {
1257 $config{build_type} = "debug";
1258
1259 # If we do not find debug-foo in the table, the target is set to foo.
1260 if (!$table{$target}) {
1261 $target = $t;
1262 }
1263}
1264
1265if ($target) {
1266 # It's possible that we have different config targets for specific
1267 # toolchains, so we try to detect them, and go for the plain config
1268 # target if not.
1269 my $found;
1270 foreach ( ( "$target-$user{CC}", "$target", undef ) ) {
1271 $found=$_ if $table{$_} && !$table{$_}->{template};
1272 last if $found;
1273 }
1274 $target = $found;
1275} else {
1276 # If we don't have a config target now, we try the C compiler as we
1277 # fallback
1278 my $cc = $user{CC} // 'cc';
1279 $target = $cc if $table{$cc} && !$table{$cc}->{template};
1280}
1281
1282&usage unless $target;
1283
1284exit 0 if $dryrun; # From older 'config'
1285
1286$config{target} = $target;
1287my %target = resolve_config($target);
1288
1289foreach (keys %target_attr_translate) {
1290 $target{$target_attr_translate{$_}} = $target{$_}
1291 if $target{$_};
1292 delete $target{$_};
1293}
1294
1295%target = ( %{$table{DEFAULTS}}, %target );
1296
1297my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1298$config{conf_files} = [ sort keys %conf_files ];
1299
1300# Using sub disable within these loops may prove fragile, so we run
1301# a cascade afterwards
1302foreach my $feature (@{$target{disable}}) {
1303 if (exists $deprecated_disablables{$feature}) {
1304 warn "***** config $target disables deprecated feature $feature\n";
1305 } elsif (!grep { $feature eq $_ } @disablables) {
1306 die "***** config $target disables unknown feature $feature\n";
1307 }
1308 $disabled{$feature} = 'config';
1309}
1310foreach my $feature (@{$target{enable}}) {
1311 if ("default" eq ($disabled{$feature} // "")) {
1312 if (exists $deprecated_disablables{$feature}) {
1313 warn "***** config $target enables deprecated feature $feature\n";
1314 } elsif (!grep { $feature eq $_ } @disablables) {
1315 die "***** config $target enables unknown feature $feature\n";
1316 }
1317 delete $disabled{$feature};
1318 }
1319}
1320
1321# If uplink_arch isn't defined, disable uplink
1322$disabled{uplink} = 'no uplink_arch' unless (defined $target{uplink_arch});
1323# If asm_arch isn't defined, disable asm
1324$disabled{asm} = 'no asm_arch' unless (defined $target{asm_arch});
1325
1326disable(); # Run a cascade now
1327
1328$target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1329$target{cxxflags}//=$target{cflags} if $target{CXX};
1330$target{exe_extension}=".exe" if ($config{target} eq "DJGPP");
1331$target{exe_extension}=".pm" if ($config{target} =~ /vos/);
1332
1333# Fill %config with values from %user, and in case those are undefined or
1334# empty, use values from %target (acting as a default).
1335foreach (keys %user) {
1336 my $ref_type = ref $user{$_};
1337
1338 # Temporary function. Takes an intended ref type (empty string or "ARRAY")
1339 # and a value that's to be coerced into that type.
1340 my $mkvalue = sub {
1341 my $type = shift;
1342 my $value = shift;
1343 my $undef_p = shift;
1344
1345 die "Too many arguments for \$mkvalue" if @_;
1346
1347 while (ref $value eq 'CODE') {
1348 $value = $value->();
1349 }
1350
1351 if ($type eq 'ARRAY') {
1352 return undef unless defined $value;
1353 return undef if ref $value ne 'ARRAY' && !$value;
1354 return undef if ref $value eq 'ARRAY' && !@$value;
1355 return [ $value ] unless ref $value eq 'ARRAY';
1356 }
1357 return undef unless $value;
1358 return $value;
1359 };
1360
1361 $config{$_} =
1362 $mkvalue->($ref_type, $user{$_})
1363 || $mkvalue->($ref_type, $target{$_});
1364 delete $config{$_} unless defined $config{$_};
1365}
1366
1367# Finish up %config by appending things the user gave us on the command line
1368# apart from "make variables"
1369foreach (keys %useradd) {
1370 # The must all be lists, so we assert that here
1371 die "internal error: \$useradd{$_} isn't an ARRAY\n"
1372 unless ref $useradd{$_} eq 'ARRAY';
1373
1374 if (defined $config{$_}) {
1375 push @{$config{$_}}, @{$useradd{$_}};
1376 } else {
1377 $config{$_} = [ @{$useradd{$_}} ];
1378 }
1379}
1380# At this point, we can forget everything about %user and %useradd,
1381# because it's now all been merged into the corresponding $config entry
1382
1383if (grep { $_ =~ /(?:^|\s)-static(?:\s|$)/ } @{$config{LDFLAGS}}) {
1384 disable('static', 'pic', 'threads');
1385}
1386
1387# Allow overriding the build file name
1388$config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1389
1390# Make sure build_scheme is consistent.
1391$target{build_scheme} = [ $target{build_scheme} ]
1392 if ref($target{build_scheme}) ne "ARRAY";
1393
1394my ($builder, $builder_platform, @builder_opts) =
1395 @{$target{build_scheme}};
1396
1397foreach my $checker (($builder_platform."-".$target{build_file}."-checker.pm",
1398 $builder_platform."-checker.pm")) {
1399 my $checker_path = catfile($srcdir, "Configurations", $checker);
1400 if (-f $checker_path) {
1401 my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1402 ? sub { warn $@; } : sub { die $@; };
1403 if (! do $checker_path) {
1404 if ($@) {
1405 $fn->($@);
1406 } elsif ($!) {
1407 $fn->($!);
1408 } else {
1409 $fn->("The detected tools didn't match the platform\n");
1410 }
1411 }
1412 last;
1413 }
1414}
1415
1416push @{$config{defines}}, "NDEBUG" if $config{build_type} eq "release";
1417
1418if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1419 {
1420 push @{$config{cflags}}, "-mno-cygwin";
1421 push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1422 push @{$config{shared_ldflag}}, "-mno-cygwin";
1423 }
1424
1425if ($target =~ /linux.*-mips/ && !$disabled{asm}
1426 && !grep { $_ !~ /-m(ips|arch=)/ } (@{$config{CFLAGS}})) {
1427 # minimally required architecture flags for assembly modules
1428 my $value;
1429 $value = '-mips2' if ($target =~ /mips32/);
1430 $value = '-mips3' if ($target =~ /mips64/);
1431 unshift @{$config{cflags}}, $value;
1432 unshift @{$config{cxxflags}}, $value if $config{CXX};
1433}
1434
1435# If threads aren't disabled, check how possible they are
1436unless ($disabled{threads}) {
1437 if ($auto_threads) {
1438 # Enabled by default, disable it forcibly if unavailable
1439 if ($target{thread_scheme} eq "(unknown)") {
1440 disable("unavailable", 'threads');
1441 }
1442 } else {
1443 # The user chose to enable threads explicitly, let's see
1444 # if there's a chance that's possible
1445 if ($target{thread_scheme} eq "(unknown)") {
1446 # If the user asked for "threads" and we don't have internal
1447 # knowledge how to do it, [s]he is expected to provide any
1448 # system-dependent compiler options that are necessary. We
1449 # can't truly check that the given options are correct, but
1450 # we expect the user to know what [s]He is doing.
1451 if (!@{$config{CFLAGS}} && !@{$config{CPPDEFINES}}) {
1452 die "You asked for multi-threading support, but didn't\n"
1453 ,"provide any system-specific compiler options\n";
1454 }
1455 }
1456 }
1457}
1458
1459# Find out if clang's sanitizers have been enabled with -fsanitize
1460# flags and ensure that the corresponding %disabled elements area
1461# removed to reflect that the sanitizers are indeed enabled.
1462my %detected_sanitizers = ();
1463foreach (grep /^-fsanitize=/, @{$config{CFLAGS} || []}) {
1464 (my $checks = $_) =~ s/^-fsanitize=//;
1465 foreach (split /,/, $checks) {
1466 my $d = { address => 'asan',
1467 undefined => 'ubsan',
1468 memory => 'msan' } -> {$_};
1469 next unless defined $d;
1470
1471 $detected_sanitizers{$d} = 1;
1472 if (defined $disabled{$d}) {
1473 die "***** Conflict between disabling $d and enabling $_ sanitizer"
1474 if $disabled{$d} ne "default";
1475 delete $disabled{$d};
1476 }
1477 }
1478}
1479
1480# If threads still aren't disabled, add a C macro to ensure the source
1481# code knows about it. Any other flag is taken care of by the configs.
1482unless($disabled{threads}) {
1483 push @{$config{openssl_feature_defines}}, "OPENSSL_THREADS";
1484}
1485
1486my $no_shared_warn=0;
1487if (($target{shared_target} // '') eq "")
1488 {
1489 $no_shared_warn = 1
1490 if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1491 disable('no-shared-target', 'pic');
1492 }
1493
1494if ($disabled{"dynamic-engine"}) {
1495 $config{dynamic_engines} = 0;
1496} else {
1497 $config{dynamic_engines} = 1;
1498}
1499
1500unless ($disabled{asan} || defined $detected_sanitizers{asan}) {
1501 push @{$config{cflags}}, "-fsanitize=address";
1502}
1503
1504unless ($disabled{ubsan} || defined $detected_sanitizers{ubsan}) {
1505 # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1506 # platforms.
1507 push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
1508}
1509
1510unless ($disabled{msan} || defined $detected_sanitizers{msan}) {
1511 push @{$config{cflags}}, "-fsanitize=memory";
1512}
1513
1514unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1515 && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1516 push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1517 push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1518}
1519#
1520# Platform fix-ups
1521#
1522
1523# This saves the build files from having to check
1524if ($disabled{pic})
1525 {
1526 foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1527 shared_defines shared_includes shared_ldflag
1528 module_cflags module_cxxflags module_cppflags
1529 module_defines module_includes module_lflags))
1530 {
1531 delete $config{$_};
1532 $target{$_} = "";
1533 }
1534 }
1535else
1536 {
1537 push @{$config{lib_defines}}, "OPENSSL_PIC";
1538 }
1539
1540if ($target{sys_id} ne "")
1541 {
1542 push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1543 }
1544
1545my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1546my %predefined_CXX = $config{CXX}
1547 ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1548 : ();
1549
1550unless ($disabled{asm}) {
1551 # big endian systems can use ELFv2 ABI
1552 if ($target eq "linux-ppc64") {
1553 $target{perlasm_scheme} = "linux64v2" if ($predefined_C{_CALL_ELF} == 2);
1554 }
1555}
1556
1557# Check for makedepend capabilities.
1558if (!$disabled{makedepend}) {
1559 # If the attribute makedep_scheme is defined, then we assume that the
1560 # config target and its associated build file are programmed to deal
1561 # with it.
1562 # If makedep_scheme is undefined, we go looking for GCC compatible
1563 # dependency making, and if that's not available, we try to fall back
1564 # on 'makedepend'.
1565 if ($target{makedep_scheme}) {
1566 $config{makedep_scheme} = $target{makedep_scheme};
1567 # If the makedepcmd attribute is defined, copy it. If not, the
1568 # build files will have to fend for themselves.
1569 $config{makedepcmd} = $target{makedepcmd} if $target{makedepcmd};
1570 } elsif (($predefined_C{__GNUC__} // -1) >= 3
1571 && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1572 # We know that GNU C version 3 and up as well as all clang
1573 # versions support dependency generation, but Xcode did not
1574 # handle $cc -M before clang support (but claims __GNUC__ = 3)
1575 $config{makedep_scheme} = 'gcc';
1576 } else {
1577 # In all other cases, we look for 'makedepend', and set the
1578 # makedep_scheme value if we found it.
1579 $config{makedepcmd} = which('makedepend');
1580 $config{makedep_scheme} = 'makedepend' if $config{makedepcmd};
1581 }
1582
1583 # If no depend scheme is set, we disable makedepend
1584 disable('unavailable', 'makedepend') unless $config{makedep_scheme};
1585}
1586
1587if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1588 # probe for -Wa,--noexecstack option...
1589 if ($predefined_C{__clang__}) {
1590 # clang has builtin assembler, which doesn't recognize --help,
1591 # but it apparently recognizes the option in question on all
1592 # supported platforms even when it's meaningless. In other words
1593 # probe would fail, but probed option always accepted...
1594 push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1595 } else {
1596 my $cc = $config{CROSS_COMPILE}.$config{CC};
1597 open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1598 while(<PIPE>) {
1599 if (m/--noexecstack/) {
1600 push @{$config{cflags}}, "-Wa,--noexecstack";
1601 last;
1602 }
1603 }
1604 close(PIPE);
1605 unlink("null.$$.o");
1606 }
1607}
1608
1609# Deal with bn_ops ###################################################
1610
1611$config{bn_ll} =0;
1612my $def_int="unsigned int";
1613$config{rc4_int} =$def_int;
1614($config{b64l},$config{b64},$config{b32})=(0,0,1);
1615
1616my $count = 0;
1617foreach (sort split(/\s+/,$target{bn_ops})) {
1618 $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1619 $config{bn_ll}=1 if $_ eq 'BN_LLONG';
1620 $config{rc4_int}="unsigned char" if $_ eq 'RC4_CHAR';
1621 ($config{b64l},$config{b64},$config{b32})
1622 =(0,1,0) if $_ eq 'SIXTY_FOUR_BIT';
1623 ($config{b64l},$config{b64},$config{b32})
1624 =(1,0,0) if $_ eq 'SIXTY_FOUR_BIT_LONG';
1625 ($config{b64l},$config{b64},$config{b32})
1626 =(0,0,1) if $_ eq 'THIRTY_TWO_BIT';
1627}
1628die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1629 if $count > 1;
1630
1631$config{api} = $config{major} * 10000 + $config{minor} * 100
1632 unless $config{api};
1633foreach (keys %$apitable) {
1634 $disabled{"deprecated-$_"} = "deprecation"
1635 if $disabled{deprecated} && $config{api} >= $apitable->{$_};
1636}
1637
1638disable(); # Run a cascade now
1639
1640# Hack cflags for better warnings (dev option) #######################
1641
1642# "Stringify" the C and C++ flags string. This permits it to be made part of
1643# a string and works as well on command lines.
1644$config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1645 @{$config{cflags}} ];
1646$config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1647 @{$config{cxxflags}} ] if $config{CXX};
1648
1649$config{openssl_api_defines} = [
1650 "OPENSSL_CONFIGURED_API=".$config{api},
1651];
1652
1653my @strict_warnings_collection=();
1654if ($strict_warnings)
1655 {
1656 my $wopt;
1657 my $gccver = $predefined_C{__GNUC__} // -1;
1658
1659 if ($gccver >= 4)
1660 {
1661 push @strict_warnings_collection, @gcc_devteam_warn;
1662 push @strict_warnings_collection, @clang_devteam_warn
1663 if (defined($predefined_C{__clang__}));
1664 }
1665 elsif ($config{target} =~ /^VC-/)
1666 {
1667 push @strict_warnings_collection, @cl_devteam_warn;
1668 }
1669 else
1670 {
1671 warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1672 }
1673 }
1674
1675$config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1676 ? @strict_warnings_collection
1677 : ( $_ ) }
1678 @{$config{CFLAGS}} ];
1679
1680unless ($disabled{afalgeng}) {
1681 $config{afalgeng}="";
1682 if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1683 my $minver = 4*10000 + 1*100 + 0;
1684 if ($config{CROSS_COMPILE} eq "") {
1685 my $verstr = `uname -r`;
1686 my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1687 ($mi2) = $mi2 =~ /(\d+)/;
1688 my $ver = $ma*10000 + $mi1*100 + $mi2;
1689 if ($ver < $minver) {
1690 disable('too-old-kernel', 'afalgeng');
1691 } else {
1692 push @{$config{engdirs}}, "afalg";
1693 }
1694 } else {
1695 disable('cross-compiling', 'afalgeng');
1696 }
1697 } else {
1698 disable('not-linux', 'afalgeng');
1699 }
1700}
1701
1702unless ($disabled{devcryptoeng}) {
1703 if ($target =~ m/^BSD/) {
1704 my $maxver = 5*100 + 7;
1705 my $sysstr = `uname -s`;
1706 my $verstr = `uname -r`;
1707 $sysstr =~ s|\R$||;
1708 $verstr =~ s|\R$||;
1709 my ($ma, $mi, @rest) = split m|\.|, $verstr;
1710 my $ver = $ma*100 + $mi;
1711 if ($sysstr eq 'OpenBSD' && $ver >= $maxver) {
1712 disable('too-new-kernel', 'devcryptoeng');
1713 }
1714 }
1715}
1716
1717unless ($disabled{ktls}) {
1718 $config{ktls}="";
1719 if ($target =~ m/^linux/) {
1720 my $usr = "/usr/$config{cross_compile_prefix}";
1721 chop($usr);
1722 if ($config{cross_compile_prefix} eq "") {
1723 $usr = "/usr";
1724 }
1725 my $minver = (4 << 16) + (13 << 8) + 0;
1726 my @verstr = split(" ",`cat $usr/include/linux/version.h | grep LINUX_VERSION_CODE`);
1727
1728 if ($verstr[2] < $minver) {
1729 disable('too-old-kernel', 'ktls');
1730 }
1731 } elsif ($target =~ m/^BSD/) {
1732 my $cc = $config{CROSS_COMPILE}.$config{CC};
1733 system("printf '#include <sys/types.h>\n#include <sys/ktls.h>' | $cc -E - >/dev/null 2>&1");
1734 if ($? != 0) {
1735 disable('too-old-freebsd', 'ktls');
1736 }
1737 } else {
1738 disable('not-linux-or-freebsd', 'ktls');
1739 }
1740}
1741
1742push @{$config{openssl_other_defines}}, "OPENSSL_NO_KTLS" if ($disabled{ktls});
1743
1744# Get the extra flags used when building shared libraries and modules. We
1745# do this late because some of them depend on %disabled.
1746
1747# Make the flags to build DSOs the same as for shared libraries unless they
1748# are already defined
1749$target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1750$target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1751$target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1752{
1753 my $shared_info_pl =
1754 catfile(dirname($0), "Configurations", "shared-info.pl");
1755 my %shared_info = read_eval_file($shared_info_pl);
1756 push @{$target{_conf_fname_int}}, $shared_info_pl;
1757 my $si = $target{shared_target};
1758 while (ref $si ne "HASH") {
1759 last if ! defined $si;
1760 if (ref $si eq "CODE") {
1761 $si = $si->();
1762 } else {
1763 $si = $shared_info{$si};
1764 }
1765 }
1766
1767 # Some of the 'shared_target' values don't have any entries in
1768 # %shared_info. That's perfectly fine, AS LONG AS the build file
1769 # template knows how to handle this. That is currently the case for
1770 # Windows and VMS.
1771 if (defined $si) {
1772 # Just as above, copy certain shared_* attributes to the corresponding
1773 # module_ attribute unless the latter is already defined
1774 $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1775 $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1776 $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1777 foreach (sort keys %$si) {
1778 $target{$_} = defined $target{$_}
1779 ? add($si->{$_})->($target{$_})
1780 : $si->{$_};
1781 }
1782 }
1783}
1784
1785# ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1786
1787######################################################################
1788# Build up information for skipping certain directories depending on disabled
1789# features, as well as setting up macros for disabled features.
1790
1791# This is a tentative database of directories to skip. Some entries may not
1792# correspond to anything real, but that's ok, they will simply be ignored.
1793# The actual processing of these entries is done in the build.info lookup
1794# loop further down.
1795#
1796# The key is a Unix formatted path in the source tree, the value is an index
1797# into %disabled_info, so any existing path gets added to a corresponding
1798# 'skipped' entry in there with the list of skipped directories.
1799my %skipdir = ();
1800my %disabled_info = (); # For configdata.pm
1801foreach my $what (sort keys %disabled) {
1802 # There are deprecated disablables that translate to themselves.
1803 # They cause disabling cascades, but should otherwise not regiter.
1804 next if $deprecated_disablables{$what};
1805 # The generated $disabled{"deprecated-x.y"} entries are special
1806 # and treated properly elsewhere
1807 next if $what =~ m|^deprecated-|;
1808
1809 $config{options} .= " no-$what";
1810
1811 if (!grep { $what eq $_ } ( 'buildtest-c++', 'fips', 'threads', 'shared',
1812 'module', 'pic', 'dynamic-engine', 'makedepend',
1813 'zlib-dynamic', 'zlib', 'sse2', 'legacy' )) {
1814 (my $WHAT = uc $what) =~ s|-|_|g;
1815 my $skipdir = $what;
1816
1817 # fix-up crypto/directory name(s)
1818 $skipdir = "ripemd" if $what eq "rmd160";
1819 $skipdir = "whrlpool" if $what eq "whirlpool";
1820
1821 my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1822 push @{$config{openssl_feature_defines}}, $macro;
1823
1824 $skipdir{engines} = $what if $what eq 'engine';
1825 $skipdir{"crypto/$skipdir"} = $what
1826 unless $what eq 'async' || $what eq 'err' || $what eq 'dso';
1827 }
1828}
1829
1830if ($disabled{"dynamic-engine"}) {
1831 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1832} else {
1833 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1834}
1835
1836# If we use the unified build, collect information from build.info files
1837my %unified_info = ();
1838
1839my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1840if ($builder eq "unified") {
1841 use Text::Template 1.46;
1842
1843 sub cleandir {
1844 my $base = shift;
1845 my $dir = shift;
1846 my $relativeto = shift || ".";
1847
1848 $dir = catdir($base,$dir) unless isabsolute($dir);
1849
1850 # Make sure the directories we're building in exists
1851 mkpath($dir);
1852
1853 my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1854 #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1855 return $res;
1856 }
1857
1858 sub cleanfile {
1859 my $base = shift;
1860 my $file = shift;
1861 my $relativeto = shift || ".";
1862
1863 $file = catfile($base,$file) unless isabsolute($file);
1864
1865 my $d = dirname($file);
1866 my $f = basename($file);
1867
1868 # Make sure the directories we're building in exists
1869 mkpath($d);
1870
1871 my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1872 #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1873 return $res;
1874 }
1875
1876 # Store the name of the template file we will build the build file from
1877 # in %config. This may be useful for the build file itself.
1878 my @build_file_template_names =
1879 ( $builder_platform."-".$target{build_file}.".tmpl",
1880 $target{build_file}.".tmpl" );
1881 my @build_file_templates = ();
1882
1883 # First, look in the user provided directory, if given
1884 if (defined env($local_config_envname)) {
1885 @build_file_templates =
1886 map {
1887 if ($^O eq 'VMS') {
1888 # VMS environment variables are logical names,
1889 # which can be used as is
1890 $local_config_envname . ':' . $_;
1891 } else {
1892 catfile(env($local_config_envname), $_);
1893 }
1894 }
1895 @build_file_template_names;
1896 }
1897 # Then, look in our standard directory
1898 push @build_file_templates,
1899 ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1900 @build_file_template_names );
1901
1902 my $build_file_template;
1903 for $_ (@build_file_templates) {
1904 $build_file_template = $_;
1905 last if -f $build_file_template;
1906
1907 $build_file_template = undef;
1908 }
1909 if (!defined $build_file_template) {
1910 die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1911 }
1912 $config{build_file_templates}
1913 = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1914 $blddir),
1915 $build_file_template ];
1916
1917 my @build_dirs = ( [ ] ); # current directory
1918
1919 $config{build_infos} = [ ];
1920
1921 # We want to detect configdata.pm in the source tree, so we
1922 # don't use it if the build tree is different.
1923 my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1924
1925 # Any source file that we recognise is placed in this hash table, with
1926 # the list of its intended destinations as value. When everything has
1927 # been collected, there's a routine that checks that these source files
1928 # exist, or if they are generated, that the generator exists.
1929 my %check_exist = ();
1930 my %check_generate = ();
1931
1932 my %ordinals = ();
1933 while (@build_dirs) {
1934 my @curd = @{shift @build_dirs};
1935 my $sourced = catdir($srcdir, @curd);
1936 my $buildd = catdir($blddir, @curd);
1937
1938 my $unixdir = join('/', @curd);
1939 if (exists $skipdir{$unixdir}) {
1940 my $what = $skipdir{$unixdir};
1941 push @{$disabled_info{$what}->{skipped}}, catdir(@curd);
1942 next;
1943 }
1944
1945 mkpath($buildd);
1946
1947 my $f = 'build.info';
1948 # The basic things we're trying to build
1949 my @programs = ();
1950 my @libraries = ();
1951 my @modules = ();
1952 my @scripts = ();
1953
1954 my %sources = ();
1955 my %shared_sources = ();
1956 my %includes = ();
1957 my %defines = ();
1958 my %depends = ();
1959 my %generate = ();
1960 my %imagedocs = ();
1961 my %htmldocs = ();
1962 my %mandocs = ();
1963
1964 # Support for $variablename in build.info files.
1965 # Embedded perl code is the ultimate master, still. If its output
1966 # contains a dollar sign, it had better be escaped, or it will be
1967 # taken for a variable name prefix.
1968 my %variables = ();
1969 # Variable name syntax
1970 my $variable_name_re = qr/(?P<VARIABLE>[[:alpha:]][[:alnum:]_]*)/;
1971 # Value modifier syntaxes
1972 my $variable_subst_re = qr/\/(?P<RE>(?:\\\/|.)*?)\/(?P<SUBST>.*?)/;
1973 # Variable reference
1974 my $variable_simple_re = qr/(?<!\\)\$${variable_name_re}/;
1975 my $variable_w_mod_re =
1976 qr/(?<!\\)\$\{${variable_name_re}(?P<MOD>(?:\\\/|.)*?)\}/;
1977 # Tie it all together
1978 my $variable_re = qr/${variable_simple_re}|${variable_w_mod_re}/;
1979
1980 my $expand_variables = sub {
1981 my $value = '';
1982 my $value_rest = shift;
1983
1984 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1985 print STDERR
1986 "DEBUG[\$expand_variables] Parsed '$value_rest' ...\n"
1987 }
1988
1989 while ($value_rest =~ /${variable_re}/) {
1990 # We must save important regexp values, because the next
1991 # regexp clears them
1992 my $mod = $+{MOD};
1993 my $variable_value = $variables{$+{VARIABLE}};
1994
1995 $value_rest = $';
1996 $value .= $`;
1997
1998 # Process modifier expressions, if present
1999 if (defined $mod) {
2000 if ($mod =~ /^${variable_subst_re}$/) {
2001 my $re = $+{RE};
2002 my $subst = $+{SUBST};
2003
2004 $variable_value =~ s/\Q$re\E/$subst/g;
2005
2006 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
2007 print STDERR
2008 "DEBUG[\$expand_variables] ... and substituted ",
2009 "'$re' with '$subst'\n";
2010 }
2011 }
2012 }
2013
2014 $value .= $variable_value;
2015 }
2016 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
2017 print STDERR
2018 "DEBUG[\$expand_variables] ... into: '$value$value_rest'\n";
2019 }
2020 return $value . $value_rest;
2021 };
2022
2023 # Support for attributes in build.info files
2024 my %attributes = ();
2025 my $handle_attributes = sub {
2026 my $attr_str = shift;
2027 my $ref = shift;
2028 my @goals = @_;
2029
2030 return unless defined $attr_str;
2031
2032 my @a = tokenize($attr_str, qr|\s*,\s*|);
2033 foreach my $a (@a) {
2034 my $ac = 1;
2035 my $ak = $a;
2036 my $av = 1;
2037 if ($a =~ m|^(!)?(.*?)\s* = \s*(.*?)$|x) {
2038 $ac = ! $1;
2039 $ak = $2;
2040 $av = $3;
2041 }
2042 foreach my $g (@goals) {
2043 if ($ac) {
2044 $$ref->{$g}->{$ak} = $av;
2045 } else {
2046 delete $$ref->{$g}->{$ak};
2047 }
2048 }
2049 }
2050 };
2051
2052 # Support for pushing values on multiple indexes of a given hash
2053 # array.
2054 my $push_to = sub {
2055 my $valueref = shift;
2056 my $index_str = shift; # May be undef or empty
2057 my $attrref = shift; # May be undef
2058 my $attr_str = shift;
2059 my @values = @_;
2060
2061 if (defined $index_str) {
2062 my @indexes = ( '' );
2063 if ($index_str !~ m|^\s*$|) {
2064 @indexes = tokenize($index_str);
2065 }
2066 foreach (@indexes) {
2067 push @{$valueref->{$_}}, @values;
2068 if (defined $attrref) {
2069 $handle_attributes->($attr_str, \$$attrref->{$_},
2070 @values);
2071 }
2072 }
2073 } else {
2074 push @$valueref, @values;
2075 $handle_attributes->($attr_str, $attrref, @values)
2076 if defined $attrref;
2077 }
2078 };
2079
2080 if ($buildinfo_debug) {
2081 print STDERR "DEBUG: Reading ",catfile($sourced, $f),"\n";
2082 }
2083 push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
2084 my $template =
2085 Text::Template->new(TYPE => 'FILE',
2086 SOURCE => catfile($sourced, $f),
2087 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
2088 die "Something went wrong with $sourced/$f: $!\n" unless $template;
2089 my @text =
2090 split /^/m,
2091 $template->fill_in(HASH => { config => \%config,
2092 target => \%target,
2093 disabled => \%disabled,
2094 withargs => \%withargs,
2095 builddir => abs2rel($buildd, $blddir),
2096 sourcedir => abs2rel($sourced, $blddir),
2097 buildtop => abs2rel($blddir, $blddir),
2098 sourcetop => abs2rel($srcdir, $blddir) },
2099 DELIMITERS => [ "{-", "-}" ]);
2100
2101 # The top item of this stack has the following values
2102 # -2 positive already run and we found ELSE (following ELSIF should fail)
2103 # -1 positive already run (skip until ENDIF)
2104 # 0 negatives so far (if we're at a condition, check it)
2105 # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
2106 # 2 positive ELSE (following ELSIF should fail)
2107 my @skip = ();
2108
2109 # A few useful generic regexps
2110 my $index_re = qr/\[\s*(?P<INDEX>(?:\\.|.)*?)\s*\]/;
2111 my $cond_re = qr/\[\s*(?P<COND>(?:\\.|.)*?)\s*\]/;
2112 my $attribs_re = qr/(?:\{\s*(?P<ATTRIBS>(?:\\.|.)*?)\s*\})?/;
2113 my $value_re = qr/(?P<VALUE>.*?)/;
2114 collect_information(
2115 collect_from_array([ @text ],
2116 qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
2117 $l1 =~ s/\\$//; $l1.$l2 }),
2118 # Info we're looking for
2119 qr/^\s* IF ${cond_re} \s*$/x
2120 => sub {
2121 if (! @skip || $skip[$#skip] > 0) {
2122 push @skip, !! $expand_variables->($+{COND});
2123 } else {
2124 push @skip, -1;
2125 }
2126 },
2127 qr/^\s* ELSIF ${cond_re} \s*$/x
2128 => sub { die "ELSIF out of scope" if ! @skip;
2129 die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
2130 $skip[$#skip] = -1 if $skip[$#skip] != 0;
2131 $skip[$#skip] = !! $expand_variables->($+{COND})
2132 if $skip[$#skip] == 0; },
2133 qr/^\s* ELSE \s*$/x
2134 => sub { die "ELSE out of scope" if ! @skip;
2135 $skip[$#skip] = -2 if $skip[$#skip] != 0;
2136 $skip[$#skip] = 2 if $skip[$#skip] == 0; },
2137 qr/^\s* ENDIF \s*$/x
2138 => sub { die "ENDIF out of scope" if ! @skip;
2139 pop @skip; },
2140 qr/^\s* ${variable_re} \s* = \s* ${value_re} \s* $/x
2141 => sub {
2142 if (!@skip || $skip[$#skip] > 0) {
2143 $variables{$+{VARIABLE}} = $expand_variables->($+{VALUE});
2144 }
2145 },
2146 qr/^\s* SUBDIRS \s* = \s* ${value_re} \s* $/x
2147 => sub {
2148 if (!@skip || $skip[$#skip] > 0) {
2149 foreach (tokenize($expand_variables->($+{VALUE}))) {
2150 push @build_dirs, [ @curd, splitdir($_, 1) ];
2151 }
2152 }
2153 },
2154 qr/^\s* PROGRAMS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2155 => sub { $push_to->(\@programs, undef,
2156 \$attributes{programs}, $+{ATTRIBS},
2157 tokenize($expand_variables->($+{VALUE})))
2158 if !@skip || $skip[$#skip] > 0; },
2159 qr/^\s* LIBS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2160 => sub { $push_to->(\@libraries, undef,
2161 \$attributes{libraries}, $+{ATTRIBS},
2162 tokenize($expand_variables->($+{VALUE})))
2163 if !@skip || $skip[$#skip] > 0; },
2164 qr/^\s* MODULES ${attribs_re} \s* = \s* ${value_re} \s* $/x
2165 => sub { $push_to->(\@modules, undef,
2166 \$attributes{modules}, $+{ATTRIBS},
2167 tokenize($expand_variables->($+{VALUE})))
2168 if !@skip || $skip[$#skip] > 0; },
2169 qr/^\s* SCRIPTS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2170 => sub { $push_to->(\@scripts, undef,
2171 \$attributes{scripts}, $+{ATTRIBS},
2172 tokenize($expand_variables->($+{VALUE})))
2173 if !@skip || $skip[$#skip] > 0; },
2174 qr/^\s* IMAGEDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2175 => sub { $push_to->(\%imagedocs, $expand_variables->($+{INDEX}),
2176 undef, undef,
2177 tokenize($expand_variables->($+{VALUE})))
2178 if !@skip || $skip[$#skip] > 0; },
2179 qr/^\s* HTMLDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2180 => sub { $push_to->(\%htmldocs, $expand_variables->($+{INDEX}),
2181 undef, undef,
2182 tokenize($expand_variables->($+{VALUE})))
2183 if !@skip || $skip[$#skip] > 0; },
2184 qr/^\s* MANDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2185 => sub { $push_to->(\%mandocs, $expand_variables->($+{INDEX}),
2186 undef, undef,
2187 tokenize($expand_variables->($+{VALUE})))
2188 if !@skip || $skip[$#skip] > 0; },
2189 qr/^\s* SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2190 => sub { $push_to->(\%sources, $expand_variables->($+{INDEX}),
2191 \$attributes{sources}, $+{ATTRIBS},
2192 tokenize($expand_variables->($+{VALUE})))
2193 if !@skip || $skip[$#skip] > 0; },
2194 qr/^\s* SHARED_SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2195 => sub { $push_to->(\%shared_sources, $expand_variables->($+{INDEX}),
2196 \$attributes{sources}, $+{ATTRIBS},
2197 tokenize($expand_variables->($+{VALUE})))
2198 if !@skip || $skip[$#skip] > 0; },
2199 qr/^\s* INCLUDE ${index_re} \s* = \s* ${value_re} \s* $/x
2200 => sub { $push_to->(\%includes, $expand_variables->($+{INDEX}),
2201 undef, undef,
2202 tokenize($expand_variables->($+{VALUE})))
2203 if !@skip || $skip[$#skip] > 0; },
2204 qr/^\s* DEFINE ${index_re} \s* = \s* ${value_re} \s* $/x
2205 => sub { $push_to->(\%defines, $expand_variables->($+{INDEX}),
2206 undef, undef,
2207 tokenize($expand_variables->($+{VALUE})))
2208 if !@skip || $skip[$#skip] > 0; },
2209 qr/^\s* DEPEND ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2210 => sub { $push_to->(\%depends, $expand_variables->($+{INDEX}),
2211 \$attributes{depends}, $+{ATTRIBS},
2212 tokenize($expand_variables->($+{VALUE})))
2213 if !@skip || $skip[$#skip] > 0; },
2214 qr/^\s* GENERATE ${index_re} \s* = \s* ${value_re} \s* $/x
2215 => sub { $push_to->(\%generate, $expand_variables->($+{INDEX}),
2216 undef, undef, $expand_variables->($+{VALUE}))
2217 if !@skip || $skip[$#skip] > 0; },
2218 qr/^\s* (?:\#.*)? $/x => sub { },
2219 "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
2220 "BEFORE" => sub {
2221 if ($buildinfo_debug) {
2222 print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
2223 print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2224 }
2225 },
2226 "AFTER" => sub {
2227 if ($buildinfo_debug) {
2228 print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2229 }
2230 },
2231 );
2232 die "runaway IF?" if (@skip);
2233
2234 if (grep { defined $attributes{modules}->{$_}->{engine} } keys %attributes
2235 and !$config{dynamic_engines}) {
2236 die <<"EOF"
2237ENGINES can only be used if configured with 'dynamic-engine'.
2238This is usually a fault in a build.info file.
2239EOF
2240 }
2241
2242 {
2243 my %infos = ( programs => [ @programs ],
2244 libraries => [ @libraries ],
2245 modules => [ @modules ],
2246 scripts => [ @scripts ] );
2247 foreach my $k (keys %infos) {
2248 foreach (@{$infos{$k}}) {
2249 my $item = cleanfile($buildd, $_, $blddir);
2250 $unified_info{$k}->{$item} = 1;
2251
2252 # Fix up associated attributes
2253 $unified_info{attributes}->{$k}->{$item} =
2254 $attributes{$k}->{$_}
2255 if defined $attributes{$k}->{$_};
2256 }
2257 }
2258 }
2259
2260 # Check that we haven't defined any library as both shared and
2261 # explicitly static. That is forbidden.
2262 my @doubles = ();
2263 foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2264 (my $l = $_) =~ s/\.a$//;
2265 push @doubles, $l if defined $unified_info{libraries}->{$l};
2266 }
2267 die "these libraries are both explicitly static and shared:\n ",
2268 join(" ", @doubles), "\n"
2269 if @doubles;
2270
2271 foreach (keys %sources) {
2272 my $dest = $_;
2273 my $ddest = cleanfile($buildd, $_, $blddir);
2274 foreach (@{$sources{$dest}}) {
2275 my $s = cleanfile($sourced, $_, $blddir);
2276
2277 # If it's generated or we simply don't find it in the source
2278 # tree, we assume it's in the build tree.
2279 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2280 $s = cleanfile($buildd, $_, $blddir);
2281 }
2282 my $o = $_;
2283 # We recognise C++, C and asm files
2284 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2285 push @{$check_exist{$s}}, $ddest;
2286 $o =~ s/\.[csS]$/.o/; # C and assembler
2287 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2288 $o = cleanfile($buildd, $o, $blddir);
2289 $unified_info{sources}->{$ddest}->{$o} = -1;
2290 $unified_info{sources}->{$o}->{$s} = -1;
2291 } elsif ($s =~ /\.rc$/) {
2292 # We also recognise resource files
2293 push @{$check_exist{$s}}, $ddest;
2294 $o =~ s/\.rc$/.res/; # Resource configuration
2295 $o = cleanfile($buildd, $o, $blddir);
2296 $unified_info{sources}->{$ddest}->{$o} = -1;
2297 $unified_info{sources}->{$o}->{$s} = -1;
2298 } else {
2299 push @{$check_exist{$s}}, $ddest;
2300 $unified_info{sources}->{$ddest}->{$s} = 1;
2301 }
2302 # Fix up associated attributes
2303 if ($o ne $_) {
2304 $unified_info{attributes}->{sources}->{$ddest}->{$o} =
2305 $unified_info{attributes}->{sources}->{$o}->{$s} =
2306 $attributes{sources}->{$dest}->{$_}
2307 if defined $attributes{sources}->{$dest}->{$_};
2308 } else {
2309 $unified_info{attributes}->{sources}->{$ddest}->{$s} =
2310 $attributes{sources}->{$dest}->{$_}
2311 if defined $attributes{sources}->{$dest}->{$_};
2312 }
2313 }
2314 }
2315
2316 foreach (keys %shared_sources) {
2317 my $dest = $_;
2318 my $ddest = cleanfile($buildd, $_, $blddir);
2319 foreach (@{$shared_sources{$dest}}) {
2320 my $s = cleanfile($sourced, $_, $blddir);
2321
2322 # If it's generated or we simply don't find it in the source
2323 # tree, we assume it's in the build tree.
2324 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2325 $s = cleanfile($buildd, $_, $blddir);
2326 }
2327
2328 my $o = $_;
2329 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2330 # We recognise C++, C and asm files
2331 push @{$check_exist{$s}}, $ddest;
2332 $o =~ s/\.[csS]$/.o/; # C and assembler
2333 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2334 $o = cleanfile($buildd, $o, $blddir);
2335 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2336 $unified_info{sources}->{$o}->{$s} = -1;
2337 } elsif ($s =~ /\.rc$/) {
2338 # We also recognise resource files
2339 push @{$check_exist{$s}}, $ddest;
2340 $o =~ s/\.rc$/.res/; # Resource configuration
2341 $o = cleanfile($buildd, $o, $blddir);
2342 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2343 $unified_info{sources}->{$o}->{$s} = -1;
2344 } elsif ($s =~ /\.ld$/) {
2345 # We also recognise linker scripts (or corresponding)
2346 # We know they are generated files
2347 push @{$check_exist{$s}}, $ddest;
2348 $o = cleanfile($buildd, $_, $blddir);
2349 $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2350 } else {
2351 die "unrecognised source file type for shared library: $s\n";
2352 }
2353 # Fix up associated attributes
2354 if ($o ne $_) {
2355 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2356 $unified_info{attributes}->{sources}->{$o}->{$s} =
2357 $attributes{sources}->{$dest}->{$_}
2358 if defined $attributes{sources}->{$dest}->{$_};
2359 } else {
2360 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2361 $attributes{sources}->{$dest}->{$_}
2362 if defined $attributes{sources}->{$dest}->{$_};
2363 }
2364 }
2365 }
2366
2367 foreach (keys %generate) {
2368 my $dest = $_;
2369 my $ddest = cleanfile($buildd, $_, $blddir);
2370 die "more than one generator for $dest: "
2371 ,join(" ", @{$generate{$_}}),"\n"
2372 if scalar @{$generate{$_}} > 1;
2373 my @generator = split /\s+/, $generate{$dest}->[0];
2374 my $gen = $generator[0];
2375 $generator[0] = cleanfile($sourced, $gen, $blddir);
2376
2377 # If the generator is itself generated, it's in the build tree
2378 if ($generate{$gen} || ! -f $generator[0]) {
2379 $generator[0] = cleanfile($buildd, $gen, $blddir);
2380 }
2381 $check_generate{$ddest}->{$generator[0]}++;
2382
2383 $unified_info{generate}->{$ddest} = [ @generator ];
2384 }
2385
2386 foreach (keys %depends) {
2387 my $dest = $_;
2388 my $ddest = $dest;
2389
2390 if ($dest =~ /^\|(.*)\|$/) {
2391 # Collect the raw target
2392 $unified_info{targets}->{$1} = 1;
2393 $ddest = $1;
2394 } elsif ($dest eq '') {
2395 $ddest = '';
2396 } else {
2397 $ddest = cleanfile($sourced, $_, $blddir);
2398
2399 # If the destination doesn't exist in source, it can only be
2400 # a generated file in the build tree.
2401 if ($ddest eq $src_configdata || ! -f $ddest) {
2402 $ddest = cleanfile($buildd, $_, $blddir);
2403 }
2404 }
2405 foreach (@{$depends{$dest}}) {
2406 my $d = cleanfile($sourced, $_, $blddir);
2407 my $d2 = cleanfile($buildd, $_, $blddir);
2408
2409 # If we know it's generated, or assume it is because we can't
2410 # find it in the source tree, we set file we depend on to be
2411 # in the build tree rather than the source tree.
2412 if ($d eq $src_configdata
2413 || (grep { $d2 eq $_ }
2414 keys %{$unified_info{generate}})
2415 || ! -f $d) {
2416 $d = $d2;
2417 }
2418 $unified_info{depends}->{$ddest}->{$d} = 1;
2419
2420 # Fix up associated attributes
2421 $unified_info{attributes}->{depends}->{$ddest}->{$d} =
2422 $attributes{depends}->{$dest}->{$_}
2423 if defined $attributes{depends}->{$dest}->{$_};
2424 }
2425 }
2426
2427 foreach (keys %includes) {
2428 my $dest = $_;
2429 my $ddest = cleanfile($sourced, $_, $blddir);
2430
2431 # If the destination doesn't exist in source, it can only be
2432 # a generated file in the build tree.
2433 if ($ddest eq $src_configdata || ! -f $ddest) {
2434 $ddest = cleanfile($buildd, $_, $blddir);
2435 }
2436 foreach (@{$includes{$dest}}) {
2437 my $is = cleandir($sourced, $_, $blddir);
2438 my $ib = cleandir($buildd, $_, $blddir);
2439 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2440 unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2441 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2442 unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2443 }
2444 }
2445
2446 foreach my $dest (keys %defines) {
2447 my $ddest;
2448
2449 if ($dest ne "") {
2450 $ddest = cleanfile($sourced, $dest, $blddir);
2451
2452 # If the destination doesn't exist in source, it can only
2453 # be a generated file in the build tree.
2454 if (! -f $ddest) {
2455 $ddest = cleanfile($buildd, $dest, $blddir);
2456 }
2457 }
2458 foreach my $v (@{$defines{$dest}}) {
2459 $v =~ m|^([^=]*)(=.*)?$|;
2460 die "0 length macro name not permitted\n" if $1 eq "";
2461 if ($dest ne "") {
2462 die "$1 defined more than once\n"
2463 if defined $unified_info{defines}->{$ddest}->{$1};
2464 $unified_info{defines}->{$ddest}->{$1} = $2;
2465 } else {
2466 die "$1 defined more than once\n"
2467 if grep { $v eq $_ } @{$config{defines}};
2468 push @{$config{defines}}, $v;
2469 }
2470 }
2471 }
2472
2473 foreach my $section (keys %imagedocs) {
2474 foreach (@{$imagedocs{$section}}) {
2475 my $imagedocs = cleanfile($buildd, $_, $blddir);
2476 $unified_info{imagedocs}->{$section}->{$imagedocs} = 1;
2477 }
2478 }
2479
2480 foreach my $section (keys %htmldocs) {
2481 foreach (@{$htmldocs{$section}}) {
2482 my $htmldocs = cleanfile($buildd, $_, $blddir);
2483 $unified_info{htmldocs}->{$section}->{$htmldocs} = 1;
2484 }
2485 }
2486
2487 foreach my $section (keys %mandocs) {
2488 foreach (@{$mandocs{$section}}) {
2489 my $mandocs = cleanfile($buildd, $_, $blddir);
2490 $unified_info{mandocs}->{$section}->{$mandocs} = 1;
2491 }
2492 }
2493 }
2494
2495 my $ordinals_text = join(', ', sort keys %ordinals);
2496 warn <<"EOF" if $ordinals_text;
2497
2498WARNING: ORDINALS were specified for $ordinals_text
2499They are ignored and should be replaced with a combination of GENERATE,
2500DEPEND and SHARED_SOURCE.
2501EOF
2502
2503 # Check that each generated file is only generated once
2504 my $ambiguous_generation = 0;
2505 foreach (sort keys %check_generate) {
2506 my @generators = sort keys %{$check_generate{$_}};
2507 my $generators_txt = join(', ', @generators);
2508 if (scalar @generators > 1) {
2509 warn "$_ is GENERATEd by more than one generator ($generators_txt)\n";
2510 $ambiguous_generation++;
2511 }
2512 if ($check_generate{$_}->{$generators[0]} > 1) {
2513 warn "INFO: $_ has more than one GENERATE declaration (same generator)\n"
2514 }
2515 }
2516 die "There are ambiguous source file generations\n"
2517 if $ambiguous_generation > 0;
2518
2519 # All given source files should exist, or if generated, their
2520 # generator should exist. This loop ensures this is true.
2521 my $missing = 0;
2522 foreach my $orig (sort keys %check_exist) {
2523 foreach my $dest (@{$check_exist{$orig}}) {
2524 if ($orig ne $src_configdata) {
2525 if ($orig =~ /\.a$/) {
2526 # Static library names may be used as sources, so we
2527 # need to detect those and give them special treatment.
2528 unless (grep { $_ eq $orig }
2529 keys %{$unified_info{libraries}}) {
2530 warn "$orig is given as source for $dest, but no such library is built\n";
2531 $missing++;
2532 }
2533 } else {
2534 # A source may be generated, and its generator may be
2535 # generated as well. We therefore loop to dig out the
2536 # first generator.
2537 my $gen = $orig;
2538
2539 while (my @next = keys %{$check_generate{$gen}}) {
2540 $gen = $next[0];
2541 }
2542
2543 if (! -f $gen) {
2544 if ($gen ne $orig) {
2545 $missing++;
2546 warn "$orig is given as source for $dest, but its generator (leading to $gen) is missing\n";
2547 } else {
2548 $missing++;
2549 warn "$orig is given as source for $dest, but is missing\n";
2550 }
2551 }
2552 }
2553 }
2554 }
2555 }
2556 die "There are files missing\n" if $missing > 0;
2557
2558 # Go through the sources of all libraries and check that the same basename
2559 # doesn't appear more than once. Some static library archivers depend on
2560 # them being unique.
2561 {
2562 my $err = 0;
2563 foreach my $prod (keys %{$unified_info{libraries}}) {
2564 my @prod_sources =
2565 map { keys %{$unified_info{sources}->{$_}} }
2566 keys %{$unified_info{sources}->{$prod}};
2567 my %srccnt = ();
2568
2569 # Count how many times a given each source basename
2570 # appears for each product.
2571 foreach my $src (@prod_sources) {
2572 $srccnt{basename $src}++;
2573 }
2574
2575 foreach my $src (keys %srccnt) {
2576 if ((my $cnt = $srccnt{$src}) > 1) {
2577 print STDERR "$src appears $cnt times for the product $prod\n";
2578 $err++
2579 }
2580 }
2581 }
2582 die if $err > 0;
2583 }
2584
2585 # Massage the result
2586
2587 # If we depend on a header file or a perl module, add an inclusion of
2588 # its directory to allow smoothe inclusion
2589 foreach my $dest (keys %{$unified_info{depends}}) {
2590 next if $dest eq "";
2591 foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2592 next unless $d =~ /\.(h|pm)$/;
2593 my $i = dirname($d);
2594 my $spot =
2595 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2596 ? 'build' : 'source';
2597 push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2598 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2599 }
2600 }
2601
2602 # Go through all intermediary files and change their names to something that
2603 # reflects what they will be built for. Note that for some source files,
2604 # this leads to duplicate object files because they are used multiple times.
2605 # the goal is to rename all object files according to this scheme:
2606 # {productname}-{midfix}-{origobjname}.[o|res]
2607 # the {midfix} is a keyword indicating the type of product, which is mostly
2608 # valuable for libraries since they come in two forms.
2609 #
2610 # This also reorganises the {sources} and {shared_sources} so that the
2611 # former only contains ALL object files that are supposed to end up in
2612 # static libraries and programs, while the latter contains ALL object files
2613 # that are supposed to end up in shared libraries and DSOs.
2614 # The main reason for having two different source structures is to allow
2615 # the same name to be used for the static and the shared variants of a
2616 # library.
2617 {
2618 # Take copies so we don't get interference from added stuff
2619 my %unified_copy = ();
2620 foreach (('sources', 'shared_sources')) {
2621 $unified_copy{$_} = { %{$unified_info{$_}} }
2622 if defined($unified_info{$_});
2623 delete $unified_info{$_};
2624 }
2625 foreach my $prodtype (('programs', 'libraries', 'modules', 'scripts')) {
2626 # $intent serves multi purposes:
2627 # - give a prefix for the new object files names
2628 # - in the case of libraries, rearrange the object files so static
2629 # libraries use the 'sources' structure exclusively, while shared
2630 # libraries use the 'shared_sources' structure exclusively.
2631 my $intent = {
2632 programs => { bin => { src => [ 'sources' ],
2633 dst => 'sources' } },
2634 libraries => { lib => { src => [ 'sources' ],
2635 dst => 'sources' },
2636 shlib => { prodselect =>
2637 sub { grep !/\.a$/, @_ },
2638 src => [ 'sources',
2639 'shared_sources' ],
2640 dst => 'shared_sources' } },
2641 modules => { dso => { src => [ 'sources' ],
2642 dst => 'sources' } },
2643 scripts => { script => { src => [ 'sources' ],
2644 dst => 'sources' } }
2645 } -> {$prodtype};
2646 foreach my $kind (keys %$intent) {
2647 next if ($intent->{$kind}->{dst} eq 'shared_sources'
2648 && $disabled{shared});
2649
2650 my @src = @{$intent->{$kind}->{src}};
2651 my $dst = $intent->{$kind}->{dst};
2652 my $prodselect = $intent->{$kind}->{prodselect} // sub { @_ };
2653 foreach my $prod ($prodselect->(keys %{$unified_info{$prodtype}})) {
2654 # %prod_sources has all applicable objects as keys, and
2655 # their corresponding sources as values
2656 my %prod_sources =
2657 map { $_ => [ keys %{$unified_copy{sources}->{$_}} ] }
2658 map { keys %{$unified_copy{$_}->{$prod}} }
2659 @src;
2660 foreach (keys %prod_sources) {
2661 # Only affect object files and resource files,
2662 # the others simply get a new value
2663 # (+1 instead of -1)
2664 if ($_ =~ /\.(o|res)$/) {
2665 (my $prodname = $prod) =~ s|\.a$||;
2666 my $newobj =
2667 catfile(dirname($_),
2668 basename($prodname)
2669 . '-' . $kind
2670 . '-' . basename($_));
2671 $unified_info{$dst}->{$prod}->{$newobj} = 1;
2672 foreach my $src (@{$prod_sources{$_}}) {
2673 $unified_info{sources}->{$newobj}->{$src} = 1;
2674 # Adjust source attributes
2675 my $attrs = $unified_info{attributes}->{sources};
2676 if (defined $attrs->{$prod}
2677 && defined $attrs->{$prod}->{$_}) {
2678 $attrs->{$prod}->{$newobj} =
2679 $attrs->{$prod}->{$_};
2680 delete $attrs->{$prod}->{$_};
2681 }
2682 foreach my $objsrc (keys %{$attrs->{$_} // {}}) {
2683 $attrs->{$newobj}->{$objsrc} =
2684 $attrs->{$_}->{$objsrc};
2685 delete $attrs->{$_}->{$objsrc};
2686 }
2687 }
2688 # Adjust dependencies
2689 foreach my $deps (keys %{$unified_info{depends}->{$_}}) {
2690 $unified_info{depends}->{$_}->{$deps} = -1;
2691 $unified_info{depends}->{$newobj}->{$deps} = 1;
2692 }
2693 # Adjust includes
2694 foreach my $k (('source', 'build')) {
2695 next unless
2696 defined($unified_info{includes}->{$_}->{$k});
2697 my @incs = @{$unified_info{includes}->{$_}->{$k}};
2698 $unified_info{includes}->{$newobj}->{$k} = [ @incs ];
2699 }
2700 } else {
2701 $unified_info{$dst}->{$prod}->{$_} = 1;
2702 }
2703 }
2704 }
2705 }
2706 }
2707 }
2708
2709 # At this point, we have a number of sources with the value -1. They
2710 # aren't part of the local build and are probably meant for a different
2711 # platform, and can therefore be cleaned away. That happens when making
2712 # %unified_info more efficient below.
2713
2714 ### Make unified_info a bit more efficient
2715 # One level structures
2716 foreach (("programs", "libraries", "modules", "scripts", "targets")) {
2717 $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2718 }
2719 # Two level structures
2720 foreach my $l1 (("sources", "shared_sources", "ldadd", "depends",
2721 "imagedocs", "htmldocs", "mandocs")) {
2722 foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2723 my @items =
2724 sort
2725 grep { $unified_info{$l1}->{$l2}->{$_} > 0 }
2726 keys %{$unified_info{$l1}->{$l2}};
2727 if (@items) {
2728 $unified_info{$l1}->{$l2} = [ @items ];
2729 } else {
2730 delete $unified_info{$l1}->{$l2};
2731 }
2732 }
2733 }
2734 # Defines
2735 foreach my $dest (sort keys %{$unified_info{defines}}) {
2736 $unified_info{defines}->{$dest}
2737 = [ map { $_.$unified_info{defines}->{$dest}->{$_} }
2738 sort keys %{$unified_info{defines}->{$dest}} ];
2739 }
2740 # Includes
2741 foreach my $dest (sort keys %{$unified_info{includes}}) {
2742 if (defined($unified_info{includes}->{$dest}->{build})) {
2743 my @source_includes = ();
2744 @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2745 if defined($unified_info{includes}->{$dest}->{source});
2746 $unified_info{includes}->{$dest} =
2747 [ @{$unified_info{includes}->{$dest}->{build}} ];
2748 foreach my $inc (@source_includes) {
2749 push @{$unified_info{includes}->{$dest}}, $inc
2750 unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2751 }
2752 } elsif (defined($unified_info{includes}->{$dest}->{source})) {
2753 $unified_info{includes}->{$dest} =
2754 [ @{$unified_info{includes}->{$dest}->{source}} ];
2755 } else {
2756 delete $unified_info{includes}->{$dest};
2757 }
2758 }
2759
2760 # For convenience collect information regarding directories where
2761 # files are generated, those generated files and the end product
2762 # they end up in where applicable. Then, add build rules for those
2763 # directories
2764 my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2765 "dso" => [ @{$unified_info{modules}} ],
2766 "bin" => [ @{$unified_info{programs}} ],
2767 "script" => [ @{$unified_info{scripts}} ],
2768 "docs" => [ (map { @{$unified_info{imagedocs}->{$_} // []} }
2769 keys %{$unified_info{imagedocs} // {}}),
2770 (map { @{$unified_info{htmldocs}->{$_} // []} }
2771 keys %{$unified_info{htmldocs} // {}}),
2772 (map { @{$unified_info{mandocs}->{$_} // []} }
2773 keys %{$unified_info{mandocs} // {}}) ] );
2774 foreach my $type (keys %loopinfo) {
2775 foreach my $product (@{$loopinfo{$type}}) {
2776 my %dirs = ();
2777 my $pd = dirname($product);
2778
2779 foreach (@{$unified_info{sources}->{$product} // []},
2780 @{$unified_info{shared_sources}->{$product} // []}) {
2781 my $d = dirname($_);
2782
2783 # We don't want to create targets for source directories
2784 # when building out of source
2785 next if ($config{sourcedir} ne $config{builddir}
2786 && $d =~ m|^\Q$config{sourcedir}\E|);
2787 # We already have a "test" target, and the current directory
2788 # is just silly to make a target for
2789 next if $d eq "test" || $d eq ".";
2790
2791 $dirs{$d} = 1;
2792 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2793 if $d ne $pd;
2794 }
2795 foreach (keys %dirs) {
2796 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2797 $product;
2798 }
2799 }
2800 }
2801}
2802
2803# For the schemes that need it, we provide the old *_obj configs
2804# from the *_asm_obj ones
2805foreach (grep /_(asm|aux)_src$/, keys %target) {
2806 my $src = $_;
2807 (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2808 $target{$obj} = $target{$src};
2809 $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2810 $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2811}
2812
2813# Write down our configuration where it fits #########################
2814
2815my %template_vars = (
2816 config => \%config,
2817 target => \%target,
2818 disablables => \@disablables,
2819 disablables_int => \@disablables_int,
2820 disabled => \%disabled,
2821 withargs => \%withargs,
2822 unified_info => \%unified_info,
2823 tls => \@tls,
2824 dtls => \@dtls,
2825 makevars => [ sort keys %user ],
2826 disabled_info => \%disabled_info,
2827 user_crossable => \@user_crossable,
2828);
2829my $configdata_outname = 'configdata.pm';
2830print "Creating $configdata_outname\n";
2831open CONFIGDATA, ">$configdata_outname.new"
2832 or die "Trying to create $configdata_outname.new: $!";
2833my $configdata_tmplname = cleanfile($srcdir, "configdata.pm.in", $blddir);
2834my $configdata_tmpl =
2835 OpenSSL::Template->new(TYPE => 'FILE', SOURCE => $configdata_tmplname);
2836$configdata_tmpl->fill_in(
2837 FILENAME => $configdata_tmplname,
2838 OUTPUT => \*CONFIGDATA,
2839 HASH => { %template_vars,
2840 autowarntext => [
2841 'WARNING: do not edit!',
2842 "Generated by Configure from $configdata_tmplname",
2843 ] }
2844) or die $Text::Template::ERROR;
2845close CONFIGDATA;
2846rename "$configdata_outname.new", $configdata_outname;
2847if ($builder_platform eq 'unix') {
2848 my $mode = (0755 & ~umask);
2849 chmod $mode, 'configdata.pm'
2850 or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2851}
2852
2853print "Running $configdata_outname\n";
2854my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
2855my $cmd = "$perlcmd $configdata_outname";
2856#print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
2857system($cmd);
2858exit 1 if $? != 0;
2859
2860$SIG{__DIE__} = $orig_death_handler;
2861
2862print <<"EOF" if ($disabled{threads} eq "unavailable");
2863
2864The library could not be configured for supporting multi-threaded
2865applications as the compiler options required on this system are not known.
2866See file INSTALL.md for details if you need multi-threading.
2867EOF
2868
2869print <<"EOF" if ($no_shared_warn);
2870
2871The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2872platform, so we will pretend you gave the option 'no-pic', which also disables
2873'shared' and 'dynamic-engine'. If you know how to implement shared libraries
2874or position independent code, please let us know (but please first make sure
2875you have tried with a current version of OpenSSL).
2876EOF
2877
2878print $banner;
2879
2880exit(0);
2881
2882######################################################################
2883#
2884# Helpers and utility functions
2885#
2886
2887# Death handler, to print a helpful message in case of failure #######
2888#
2889sub death_handler {
2890 die @_ if $^S; # To prevent the added message in eval blocks
2891 my $build_file = $target{build_file} // "build file";
2892 my @message = ( <<"_____", @_ );
2893
2894Failure! $build_file wasn't produced.
2895Please read INSTALL.md and associated NOTES-* files. You may also have to
2896look over your available compiler tool chain or change your configuration.
2897
2898_____
2899
2900 # Dying is terminal, so it's ok to reset the signal handler here.
2901 $SIG{__DIE__} = $orig_death_handler;
2902 die @message;
2903}
2904
2905# Configuration file reading #########################################
2906
2907# Note: All of the helper functions are for lazy evaluation. They all
2908# return a CODE ref, which will return the intended value when evaluated.
2909# Thus, whenever there's mention of a returned value, it's about that
2910# intended value.
2911
2912# Helper function to implement conditional value variants, with a default
2913# plus additional values based on the value of $config{build_type}.
2914# Arguments are given in hash table form:
2915#
2916# picker(default => "Basic string: ",
2917# debug => "debug",
2918# release => "release")
2919#
2920# When configuring with --debug, the resulting string will be
2921# "Basic string: debug", and when not, it will be "Basic string: release"
2922#
2923# This can be used to create variants of sets of flags according to the
2924# build type:
2925#
2926# cflags => picker(default => "-Wall",
2927# debug => "-g -O0",
2928# release => "-O3")
2929#
2930sub picker {
2931 my %opts = @_;
2932 return sub { add($opts{default} || (),
2933 $opts{$config{build_type}} || ())->(); }
2934}
2935
2936# Helper function to combine several values of different types into one.
2937# This is useful if you want to combine a string with the result of a
2938# lazy function, such as:
2939#
2940# cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2941#
2942sub combine {
2943 my @stuff = @_;
2944 return sub { add(@stuff)->(); }
2945}
2946
2947# Helper function to implement conditional values depending on the value
2948# of $disabled{threads}. Can be used as follows:
2949#
2950# cflags => combine("-Wall", threads("-pthread"))
2951#
2952sub threads {
2953 my @flags = @_;
2954 return sub { add($disabled{threads} ? () : @flags)->(); }
2955}
2956
2957sub shared {
2958 my @flags = @_;
2959 return sub { add($disabled{shared} ? () : @flags)->(); }
2960}
2961
2962our $add_called = 0;
2963# Helper function to implement adding values to already existing configuration
2964# values. It handles elements that are ARRAYs, CODEs and scalars
2965sub _add {
2966 my $separator = shift;
2967
2968 # If there's any ARRAY in the collection of values OR the separator
2969 # is undef, we will return an ARRAY of combined values, otherwise a
2970 # string of joined values with $separator as the separator.
2971 my $found_array = !defined($separator);
2972
2973 my @values =
2974 map {
2975 my $res = $_;
2976 while (ref($res) eq "CODE") {
2977 $res = $res->();
2978 }
2979 if (defined($res)) {
2980 if (ref($res) eq "ARRAY") {
2981 $found_array = 1;
2982 @$res;
2983 } else {
2984 $res;
2985 }
2986 } else {
2987 ();
2988 }
2989 } (@_);
2990
2991 $add_called = 1;
2992
2993 if ($found_array) {
2994 [ @values ];
2995 } else {
2996 join($separator, grep { defined($_) && $_ ne "" } @values);
2997 }
2998}
2999sub add_before {
3000 my $separator = " ";
3001 if (ref($_[$#_]) eq "HASH") {
3002 my $opts = pop;
3003 $separator = $opts->{separator};
3004 }
3005 my @x = @_;
3006 sub { _add($separator, @x, @_) };
3007}
3008sub add {
3009 my $separator = " ";
3010 if (ref($_[$#_]) eq "HASH") {
3011 my $opts = pop;
3012 $separator = $opts->{separator};
3013 }
3014 my @x = @_;
3015 sub { _add($separator, @_, @x) };
3016}
3017
3018sub read_eval_file {
3019 my $fname = shift;
3020 my $content;
3021 my @result;
3022
3023 open F, "< $fname" or die "Can't open '$fname': $!\n";
3024 {
3025 undef local $/;
3026 $content = <F>;
3027 }
3028 close F;
3029 {
3030 local $@;
3031
3032 @result = ( eval $content );
3033 warn $@ if $@;
3034 }
3035 return wantarray ? @result : $result[0];
3036}
3037
3038# configuration reader, evaluates the input file as a perl script and expects
3039# it to fill %targets with target configurations. Those are then added to
3040# %table.
3041sub read_config {
3042 my $fname = shift;
3043 my %targets;
3044
3045 {
3046 # Protect certain tables from tampering
3047 local %table = ();
3048
3049 %targets = read_eval_file($fname);
3050 }
3051 my %preexisting = ();
3052 foreach (sort keys %targets) {
3053 $preexisting{$_} = 1 if $table{$_};
3054 }
3055 die <<"EOF",
3056The following config targets from $fname
3057shadow pre-existing config targets with the same name:
3058EOF
3059 map { " $_\n" } sort keys %preexisting
3060 if %preexisting;
3061
3062
3063 # For each target, check that it's configured with a hash table.
3064 foreach (keys %targets) {
3065 if (ref($targets{$_}) ne "HASH") {
3066 if (ref($targets{$_}) eq "") {
3067 warn "Deprecated target configuration for $_, ignoring...\n";
3068 } else {
3069 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3070 }
3071 delete $targets{$_};
3072 } else {
3073 $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3074 }
3075 }
3076
3077 %table = (%table, %targets);
3078
3079}
3080
3081# configuration resolver. Will only resolve all the lazy evaluation
3082# codeblocks for the chosen target and all those it inherits from,
3083# recursively
3084sub resolve_config {
3085 my $target = shift;
3086 my @breadcrumbs = @_;
3087
3088# my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3089
3090 if (grep { $_ eq $target } @breadcrumbs) {
3091 die "inherit_from loop! target backtrace:\n "
3092 ,$target,"\n ",join("\n ", @breadcrumbs),"\n";
3093 }
3094
3095 if (!defined($table{$target})) {
3096 warn "Warning! target $target doesn't exist!\n";
3097 return ();
3098 }
3099 # Recurse through all inheritances. They will be resolved on the
3100 # fly, so when this operation is done, they will all just be a
3101 # bunch of attributes with string values.
3102 # What we get here, though, are keys with references to lists of
3103 # the combined values of them all. We will deal with lists after
3104 # this stage is done.
3105 my %combined_inheritance = ();
3106 if ($table{$target}->{inherit_from}) {
3107 my @inherit_from =
3108 map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3109 foreach (@inherit_from) {
3110 my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3111
3112 # 'template' is a marker that's considered private to
3113 # the config that had it.
3114 delete $inherited_config{template};
3115
3116 foreach (keys %inherited_config) {
3117 if (!$combined_inheritance{$_}) {
3118 $combined_inheritance{$_} = [];
3119 }
3120 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3121 }
3122 }
3123 }
3124
3125 # We won't need inherit_from in this target any more, since we've
3126 # resolved all the inheritances that lead to this
3127 delete $table{$target}->{inherit_from};
3128
3129 # Now is the time to deal with those lists. Here's the place to
3130 # decide what shall be done with those lists, all based on the
3131 # values of the target we're currently dealing with.
3132 # - If a value is a coderef, it will be executed with the list of
3133 # inherited values as arguments.
3134 # - If the corresponding key doesn't have a value at all or is the
3135 # empty string, the inherited value list will be run through the
3136 # default combiner (below), and the result becomes this target's
3137 # value.
3138 # - Otherwise, this target's value is assumed to be a string that
3139 # will simply override the inherited list of values.
3140 my $default_combiner = add();
3141
3142 my %all_keys =
3143 map { $_ => 1 } (keys %combined_inheritance,
3144 keys %{$table{$target}});
3145
3146 sub process_values {
3147 my $object = shift;
3148 my $inherited = shift; # Always a [ list ]
3149 my $target = shift;
3150 my $entry = shift;
3151
3152 $add_called = 0;
3153
3154 while(ref($object) eq "CODE") {
3155 $object = $object->(@$inherited);
3156 }
3157 if (!defined($object)) {
3158 return ();
3159 }
3160 elsif (ref($object) eq "ARRAY") {
3161 local $add_called; # To make sure recursive calls don't affect it
3162 return [ map { process_values($_, $inherited, $target, $entry) }
3163 @$object ];
3164 } elsif (ref($object) eq "") {
3165 return $object;
3166 } else {
3167 die "cannot handle reference type ",ref($object)
3168 ," found in target ",$target," -> ",$entry,"\n";
3169 }
3170 }
3171
3172 foreach my $key (sort keys %all_keys) {
3173 my $previous = $combined_inheritance{$key};
3174
3175 # Current target doesn't have a value for the current key?
3176 # Assign it the default combiner, the rest of this loop body
3177 # will handle it just like any other coderef.
3178 if (!exists $table{$target}->{$key}) {
3179 $table{$target}->{$key} = $default_combiner;
3180 }
3181
3182 $table{$target}->{$key} = process_values($table{$target}->{$key},
3183 $combined_inheritance{$key},
3184 $target, $key);
3185 unless(defined($table{$target}->{$key})) {
3186 delete $table{$target}->{$key};
3187 }
3188# if ($extra_checks &&
3189# $previous && !($add_called || $previous ~~ $table{$target}->{$key})) {
3190# warn "$key got replaced in $target\n";
3191# }
3192 }
3193
3194 # Finally done, return the result.
3195 return %{$table{$target}};
3196}
3197
3198sub usage
3199 {
3200 print STDERR $usage;
3201 print STDERR "\npick os/compiler from:\n";
3202 my $j=0;
3203 my $i;
3204 my $k=0;
3205 foreach $i (sort keys %table)
3206 {
3207 next if $table{$i}->{template};
3208 next if $i =~ /^debug/;
3209 $k += length($i) + 1;
3210 if ($k > 78)
3211 {
3212 print STDERR "\n";
3213 $k=length($i);
3214 }
3215 print STDERR $i . " ";
3216 }
3217 foreach $i (sort keys %table)
3218 {
3219 next if $table{$i}->{template};
3220 next if $i !~ /^debug/;
3221 $k += length($i) + 1;
3222 if ($k > 78)
3223 {
3224 print STDERR "\n";
3225 $k=length($i);
3226 }
3227 print STDERR $i . " ";
3228 }
3229 exit(1);
3230 }
3231
3232sub compiler_predefined {
3233 state %predefined;
3234 my $cc = shift;
3235
3236 return () if $^O eq 'VMS';
3237
3238 die 'compiler_predefined called without a compiler command'
3239 unless $cc;
3240
3241 if (! $predefined{$cc}) {
3242
3243 $predefined{$cc} = {};
3244
3245 # collect compiler pre-defines from gcc or gcc-alike...
3246 open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3247 while (my $l = <PIPE>) {
3248 $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3249 $predefined{$cc}->{$1} = $2 // '';
3250 }
3251 close(PIPE);
3252 }
3253
3254 return %{$predefined{$cc}};
3255}
3256
3257sub which
3258{
3259 my ($name)=@_;
3260
3261 if (eval { require IPC::Cmd; 1; }) {
3262 IPC::Cmd->import();
3263 return scalar IPC::Cmd::can_run($name);
3264 } else {
3265 # if there is $directories component in splitpath,
3266 # then it's not something to test with $PATH...
3267 return $name if (File::Spec->splitpath($name))[1];
3268
3269 foreach (File::Spec->path()) {
3270 my $fullpath = catfile($_, "$name$target{exe_extension}");
3271 if (-f $fullpath and -x $fullpath) {
3272 return $fullpath;
3273 }
3274 }
3275 }
3276}
3277
3278sub env
3279{
3280 my $name = shift;
3281 my %opts = @_;
3282
3283 unless ($opts{cacheonly}) {
3284 # Note that if $ENV{$name} doesn't exist or is undefined,
3285 # $config{perlenv}->{$name} will be created with the value
3286 # undef. This is intentional.
3287
3288 $config{perlenv}->{$name} = $ENV{$name}
3289 if ! exists $config{perlenv}->{$name};
3290 }
3291 return $config{perlenv}->{$name};
3292}
3293
3294# Configuration printer ##############################################
3295
3296sub print_table_entry
3297{
3298 local $now_printing = shift;
3299 my %target = resolve_config($now_printing);
3300 my $type = shift;
3301
3302 # Don't print the templates
3303 return if $target{template};
3304
3305 my @sequence = (
3306 "sys_id",
3307 "cpp",
3308 "cppflags",
3309 "defines",
3310 "includes",
3311 "cc",
3312 "cflags",
3313 "ld",
3314 "lflags",
3315 "loutflag",
3316 "ex_libs",
3317 "bn_ops",
3318 "enable",
3319 "disable",
3320 "poly1035_asm_src",
3321 "thread_scheme",
3322 "perlasm_scheme",
3323 "dso_scheme",
3324 "shared_target",
3325 "shared_cflag",
3326 "shared_defines",
3327 "shared_ldflag",
3328 "shared_rcflag",
3329 "shared_extension",
3330 "dso_extension",
3331 "obj_extension",
3332 "exe_extension",
3333 "ranlib",
3334 "ar",
3335 "arflags",
3336 "aroutflag",
3337 "rc",
3338 "rcflags",
3339 "rcoutflag",
3340 "mt",
3341 "mtflags",
3342 "mtinflag",
3343 "mtoutflag",
3344 "multilib",
3345 "build_scheme",
3346 );
3347
3348 if ($type eq "TABLE") {
3349 print "\n";
3350 print "*** $now_printing\n";
3351 foreach (@sequence) {
3352 if (ref($target{$_}) eq "ARRAY") {
3353 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3354 } else {
3355 printf "\$%-12s = %s\n", $_, $target{$_};
3356 }
3357 }
3358 } elsif ($type eq "HASH") {
3359 my $largest =
3360 length((sort { length($a) <=> length($b) } @sequence)[-1]);
3361 print " '$now_printing' => {\n";
3362 foreach (@sequence) {
3363 if ($target{$_}) {
3364 if (ref($target{$_}) eq "ARRAY") {
3365 print " '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3366 } else {
3367 print " '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3368 }
3369 }
3370 }
3371 print " },\n";
3372 }
3373}
3374
3375# Utility routines ###################################################
3376
3377# On VMS, if the given file is a logical name, File::Spec::Functions
3378# will consider it an absolute path. There are cases when we want a
3379# purely syntactic check without checking the environment.
3380sub isabsolute {
3381 my $file = shift;
3382
3383 # On non-platforms, we just use file_name_is_absolute().
3384 return file_name_is_absolute($file) unless $^O eq "VMS";
3385
3386 # If the file spec includes a device or a directory spec,
3387 # file_name_is_absolute() is perfectly safe.
3388 return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3389
3390 # Here, we know the given file spec isn't absolute
3391 return 0;
3392}
3393
3394# Makes a directory absolute and cleans out /../ in paths like foo/../bar
3395# On some platforms, this uses rel2abs(), while on others, realpath() is used.
3396# realpath() requires that at least all path components except the last is an
3397# existing directory. On VMS, the last component of the directory spec must
3398# exist.
3399sub absolutedir {
3400 my $dir = shift;
3401
3402 # realpath() is quite buggy on VMS. It uses LIB$FID_TO_NAME, which
3403 # will return the volume name for the device, no matter what. Also,
3404 # it will return an incorrect directory spec if the argument is a
3405 # directory that doesn't exist.
3406 if ($^O eq "VMS") {
3407 return rel2abs($dir);
3408 }
3409
3410 # We use realpath() on Unix, since no other will properly clean out
3411 # a directory spec.
3412 use Cwd qw/realpath/;
3413
3414 return realpath($dir);
3415}
3416
3417# Check if all paths are one and the same, using stat. They must both exist
3418# We need this for the cases when File::Spec doesn't detect case insensitivity
3419# (File::Spec::Unix assumes case sensitivity)
3420sub samedir {
3421 die "samedir expects two arguments\n" unless scalar @_ == 2;
3422
3423 my @stat0 = stat($_[0]); # First argument
3424 my @stat1 = stat($_[1]); # Second argument
3425
3426 die "Couldn't stat $_[0]" unless @stat0;
3427 die "Couldn't stat $_[1]" unless @stat1;
3428
3429 # Compare device number
3430 return 0 unless ($stat0[0] == $stat1[0]);
3431 # Compare "inode". The perl manual recommends comparing as
3432 # string rather than as number.
3433 return 0 unless ($stat0[1] eq $stat1[1]);
3434
3435 return 1; # All the same
3436}
3437
3438sub quotify {
3439 my %processors = (
3440 perl => sub { my $x = shift;
3441 $x =~ s/([\\\$\@"])/\\$1/g;
3442 return '"'.$x.'"'; },
3443 maybeshell => sub { my $x = shift;
3444 (my $y = $x) =~ s/([\\\"])/\\$1/g;
3445 if ($x ne $y || $x =~ m|\s|) {
3446 return '"'.$y.'"';
3447 } else {
3448 return $x;
3449 }
3450 },
3451 );
3452 my $for = shift;
3453 my $processor =
3454 defined($processors{$for}) ? $processors{$for} : sub { shift; };
3455
3456 return map { $processor->($_); } @_;
3457}
3458
3459# collect_from_file($filename, $line_concat_cond_re, $line_concat)
3460# $filename is a file name to read from
3461# $line_concat_cond_re is a regexp detecting a line continuation ending
3462# $line_concat is a CODEref that takes care of concatenating two lines
3463sub collect_from_file {
3464 my $filename = shift;
3465 my $line_concat_cond_re = shift;
3466 my $line_concat = shift;
3467
3468 open my $fh, $filename || die "unable to read $filename: $!\n";
3469 return sub {
3470 my $saved_line = "";
3471 $_ = "";
3472 while (<$fh>) {
3473 s|\R$||;
3474 if (defined $line_concat) {
3475 $_ = $line_concat->($saved_line, $_);
3476 $saved_line = "";
3477 }
3478 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3479 $saved_line = $_;
3480 next;
3481 }
3482 return $_;
3483 }
3484 die "$filename ending with continuation line\n" if $_;
3485 close $fh;
3486 return undef;
3487 }
3488}
3489
3490# collect_from_array($array, $line_concat_cond_re, $line_concat)
3491# $array is an ARRAYref of lines
3492# $line_concat_cond_re is a regexp detecting a line continuation ending
3493# $line_concat is a CODEref that takes care of concatenating two lines
3494sub collect_from_array {
3495 my $array = shift;
3496 my $line_concat_cond_re = shift;
3497 my $line_concat = shift;
3498 my @array = (@$array);
3499
3500 return sub {
3501 my $saved_line = "";
3502 $_ = "";
3503 while (defined($_ = shift @array)) {
3504 s|\R$||;
3505 if (defined $line_concat) {
3506 $_ = $line_concat->($saved_line, $_);
3507 $saved_line = "";
3508 }
3509 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3510 $saved_line = $_;
3511 next;
3512 }
3513 return $_;
3514 }
3515 die "input text ending with continuation line\n" if $_;
3516 return undef;
3517 }
3518}
3519
3520# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3521# $lineiterator is a CODEref that delivers one line at a time.
3522# All following arguments are regex/CODEref pairs, where the regexp detects a
3523# line and the CODEref does something with the result of the regexp.
3524sub collect_information {
3525 my $lineiterator = shift;
3526 my %collectors = @_;
3527
3528 while(defined($_ = $lineiterator->())) {
3529 s|\R$||;
3530 my $found = 0;
3531 if ($collectors{"BEFORE"}) {
3532 $collectors{"BEFORE"}->($_);
3533 }
3534 foreach my $re (keys %collectors) {
3535 if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3536 $collectors{$re}->($lineiterator);
3537 $found = 1;
3538 };
3539 }
3540 if ($collectors{"OTHERWISE"}) {
3541 $collectors{"OTHERWISE"}->($lineiterator, $_)
3542 unless $found || !defined $collectors{"OTHERWISE"};
3543 }
3544 if ($collectors{"AFTER"}) {
3545 $collectors{"AFTER"}->($_);
3546 }
3547 }
3548}
3549
3550# tokenize($line)
3551# tokenize($line,$separator)
3552# $line is a line of text to split up into tokens
3553# $separator [optional] is a regular expression that separates the tokens,
3554# the default being spaces. Do not use quotes of any kind as separators,
3555# that will give undefined results.
3556# Returns a list of tokens.
3557#
3558# Tokens are divided by separator (spaces by default). If the tokens include
3559# the separators, they have to be quoted with single or double quotes.
3560# Double quotes inside a double quoted token must be escaped. Escaping is done
3561# with backslash.
3562# Basically, the same quoting rules apply for " and ' as in any
3563# Unix shell.
3564sub tokenize {
3565 my $line = my $debug_line = shift;
3566 my $separator = shift // qr|\s+|;
3567 my @result = ();
3568
3569 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3570 print STDERR "DEBUG[tokenize]: \$separator = $separator\n";
3571 }
3572
3573 while ($line =~ s|^${separator}||, $line ne "") {
3574 my $token = "";
3575 again:
3576 $line =~ m/^(.*?)(${separator}|"|'|$)/;
3577 $token .= $1;
3578 $line = $2.$';
3579
3580 if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3581 $token .= $1;
3582 $line = $';
3583 goto again;
3584 } elsif ($line =~ m/^'([^']*)'/) {
3585 $token .= $1;
3586 $line = $';
3587 goto again;
3588 }
3589 push @result, $token;
3590 }
3591
3592 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3593 print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3594 print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3595 }
3596 return @result;
3597}
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