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source: vbox/trunk/src/libs/openssl-3.1.0/Configure@ 100111

Last change on this file since 100111 was 99366, checked in by vboxsync, 21 months ago

openssl-3.1.0: Applied and adjusted our OpenSSL changes to 3.0.7. bugref:10418

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1#! /usr/bin/env perl
2# -*- mode: perl; -*-
3# Copyright 2016-2023 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{$_} } @tls }
596 => [ "tls" ],
597
598 "crypto-mdebug" => [ "crypto-mdebug-backtrace" ],
599
600 # If no modules, then no dynamic engines either
601 "module" => [ "dynamic-engine" ],
602
603 # Without shared libraries, dynamic engines aren't possible.
604 # This is due to them having to link with libcrypto and register features
605 # using the ENGINE functionality, and since that relies on global tables,
606 # those *have* to be exactly the same as the ones accessed from the app,
607 # which cannot be guaranteed if shared libraries aren't present.
608 # (note that even with shared libraries, both the app and dynamic engines
609 # must be linked with the same library)
610 "shared" => [ "dynamic-engine", "uplink" ],
611 "dso" => [ "dynamic-engine", "module" ],
612 # Other modules don't necessarily have to link with libcrypto, so shared
613 # libraries do not have to be a condition to produce those.
614
615 # Without position independent code, there can be no shared libraries
616 # or modules.
617 "pic" => [ "shared", "module" ],
618
619 "module" => [ "fips", "dso" ],
620
621 "engine" => [ "dynamic-engine", grep(/eng$/, @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."-".$config{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 $detected_sanitizers{ubsan}) {
1505 push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all", "-DPEDANTIC";
1506}
1507
1508unless ($disabled{msan} || defined $detected_sanitizers{msan}) {
1509 push @{$config{cflags}}, "-fsanitize=memory";
1510}
1511
1512unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1513 && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1514 push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1515 push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1516}
1517#
1518# Platform fix-ups
1519#
1520
1521# This saves the build files from having to check
1522if ($disabled{pic})
1523 {
1524 foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1525 shared_defines shared_includes shared_ldflag
1526 module_cflags module_cxxflags module_cppflags
1527 module_defines module_includes module_lflags))
1528 {
1529 delete $config{$_};
1530 $target{$_} = "";
1531 }
1532 }
1533else
1534 {
1535 push @{$config{lib_defines}}, "OPENSSL_PIC";
1536 }
1537
1538if ($target{sys_id} ne "")
1539 {
1540 push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1541 }
1542
1543my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1544my %predefined_CXX = $config{CXX}
1545 ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1546 : ();
1547
1548unless ($disabled{asm}) {
1549 # big endian systems can use ELFv2 ABI
1550 if ($target eq "linux-ppc64" || $target eq "BSD-ppc64") {
1551 $target{perlasm_scheme} = "linux64v2" if ($predefined_C{_CALL_ELF} == 2);
1552 }
1553}
1554
1555# Check for makedepend capabilities.
1556if (!$disabled{makedepend}) {
1557 # If the attribute makedep_scheme is defined, then we assume that the
1558 # config target and its associated build file are programmed to deal
1559 # with it.
1560 # If makedep_scheme is undefined, we go looking for GCC compatible
1561 # dependency making, and if that's not available, we try to fall back
1562 # on 'makedepend'.
1563 if ($target{makedep_scheme}) {
1564 $config{makedep_scheme} = $target{makedep_scheme};
1565 # If the makedepcmd attribute is defined, copy it. If not, the
1566 # build files will have to fend for themselves.
1567 $config{makedepcmd} = $target{makedepcmd} if $target{makedepcmd};
1568 } elsif (($predefined_C{__GNUC__} // -1) >= 3
1569 && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1570 # We know that GNU C version 3 and up as well as all clang
1571 # versions support dependency generation, but Xcode did not
1572 # handle $cc -M before clang support (but claims __GNUC__ = 3)
1573 $config{makedep_scheme} = 'gcc';
1574 } else {
1575 # In all other cases, we look for 'makedepend', and set the
1576 # makedep_scheme value if we found it.
1577 $config{makedepcmd} = which('makedepend');
1578 $config{makedep_scheme} = 'makedepend' if $config{makedepcmd};
1579 }
1580
1581 # If no depend scheme is set, we disable makedepend
1582 disable('unavailable', 'makedepend') unless $config{makedep_scheme};
1583}
1584
1585if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1586 # probe for -Wa,--noexecstack option...
1587 if ($predefined_C{__clang__}) {
1588 # clang has builtin assembler, which doesn't recognize --help,
1589 # but it apparently recognizes the option in question on all
1590 # supported platforms even when it's meaningless. In other words
1591 # probe would fail, but probed option always accepted...
1592 push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1593 } else {
1594 my $cc = $config{CROSS_COMPILE}.$config{CC};
1595 open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1596 while(<PIPE>) {
1597 if (m/--noexecstack/) {
1598 push @{$config{cflags}}, "-Wa,--noexecstack";
1599 last;
1600 }
1601 }
1602 close(PIPE);
1603 unlink("null.$$.o");
1604 }
1605}
1606
1607# Deal with bn_ops ###################################################
1608
1609$config{bn_ll} =0;
1610my $def_int="unsigned int";
1611$config{rc4_int} =$def_int;
1612($config{b64l},$config{b64},$config{b32})=(0,0,1);
1613
1614my $count = 0;
1615foreach (sort split(/\s+/,$target{bn_ops})) {
1616 $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1617 $config{bn_ll}=1 if $_ eq 'BN_LLONG';
1618 $config{rc4_int}="unsigned char" if $_ eq 'RC4_CHAR';
1619 ($config{b64l},$config{b64},$config{b32})
1620 =(0,1,0) if $_ eq 'SIXTY_FOUR_BIT';
1621 ($config{b64l},$config{b64},$config{b32})
1622 =(1,0,0) if $_ eq 'SIXTY_FOUR_BIT_LONG';
1623 ($config{b64l},$config{b64},$config{b32})
1624 =(0,0,1) if $_ eq 'THIRTY_TWO_BIT';
1625}
1626die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1627 if $count > 1;
1628
1629$config{api} = $config{major} * 10000 + $config{minor} * 100
1630 unless $config{api};
1631foreach (keys %$apitable) {
1632 $disabled{"deprecated-$_"} = "deprecation"
1633 if $disabled{deprecated} && $config{api} >= $apitable->{$_};
1634}
1635
1636disable(); # Run a cascade now
1637
1638# Hack cflags for better warnings (dev option) #######################
1639
1640# "Stringify" the C and C++ flags string. This permits it to be made part of
1641# a string and works as well on command lines.
1642$config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1643 @{$config{cflags}} ];
1644$config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1645 @{$config{cxxflags}} ] if $config{CXX};
1646
1647$config{openssl_api_defines} = [
1648 "OPENSSL_CONFIGURED_API=".$config{api},
1649];
1650
1651my @strict_warnings_collection=();
1652if ($strict_warnings)
1653 {
1654 my $wopt;
1655 my $gccver = $predefined_C{__GNUC__} // -1;
1656
1657 if ($gccver >= 4)
1658 {
1659 push @strict_warnings_collection, @gcc_devteam_warn;
1660 push @strict_warnings_collection, @clang_devteam_warn
1661 if (defined($predefined_C{__clang__}));
1662 }
1663 elsif ($config{target} =~ /^VC-/)
1664 {
1665 push @strict_warnings_collection, @cl_devteam_warn;
1666 }
1667 else
1668 {
1669 warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1670 }
1671 }
1672
1673$config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1674 ? @strict_warnings_collection
1675 : ( $_ ) }
1676 @{$config{CFLAGS}} ];
1677
1678unless ($disabled{afalgeng}) {
1679 $config{afalgeng}="";
1680 if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1681 push @{$config{engdirs}}, "afalg";
1682 } else {
1683 disable('not-linux', 'afalgeng');
1684 }
1685}
1686
1687unless ($disabled{devcryptoeng}) {
1688 if ($target =~ m/^BSD/) {
1689 my $maxver = 5*100 + 7;
1690 my $sysstr = `uname -s`;
1691 my $verstr = `uname -r`;
1692 $sysstr =~ s|\R$||;
1693 $verstr =~ s|\R$||;
1694 my ($ma, $mi, @rest) = split m|\.|, $verstr;
1695 my $ver = $ma*100 + $mi;
1696 if ($sysstr eq 'OpenBSD' && $ver >= $maxver) {
1697 disable('too-new-kernel', 'devcryptoeng');
1698 }
1699 }
1700}
1701
1702unless ($disabled{ktls}) {
1703 $config{ktls}="";
1704 my $cc = $config{CROSS_COMPILE}.$config{CC};
1705 if ($target =~ m/^linux/) {
1706 system("printf '#include <sys/types.h>\n#include <linux/tls.h>' | $cc -E - >/dev/null 2>&1");
1707 if ($? != 0) {
1708 disable('too-old-kernel', 'ktls');
1709 }
1710 } elsif ($target =~ m/^BSD/) {
1711 system("printf '#include <sys/types.h>\n#include <sys/ktls.h>' | $cc -E - >/dev/null 2>&1");
1712 if ($? != 0) {
1713 disable('too-old-freebsd', 'ktls');
1714 }
1715 } else {
1716 disable('not-linux-or-freebsd', 'ktls');
1717 }
1718}
1719
1720push @{$config{openssl_other_defines}}, "OPENSSL_NO_KTLS" if ($disabled{ktls});
1721
1722# Get the extra flags used when building shared libraries and modules. We
1723# do this late because some of them depend on %disabled.
1724
1725# Make the flags to build DSOs the same as for shared libraries unless they
1726# are already defined
1727$target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1728$target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1729$target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1730{
1731 my $shared_info_pl =
1732 catfile(dirname($0), "Configurations", "shared-info.pl");
1733 my %shared_info = read_eval_file($shared_info_pl);
1734 push @{$target{_conf_fname_int}}, $shared_info_pl;
1735 my $si = $target{shared_target};
1736 while (ref $si ne "HASH") {
1737 last if ! defined $si;
1738 if (ref $si eq "CODE") {
1739 $si = $si->();
1740 } else {
1741 $si = $shared_info{$si};
1742 }
1743 }
1744
1745 # Some of the 'shared_target' values don't have any entries in
1746 # %shared_info. That's perfectly fine, AS LONG AS the build file
1747 # template knows how to handle this. That is currently the case for
1748 # Windows and VMS.
1749 if (defined $si) {
1750 # Just as above, copy certain shared_* attributes to the corresponding
1751 # module_ attribute unless the latter is already defined
1752 $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1753 $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1754 $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1755 foreach (sort keys %$si) {
1756 $target{$_} = defined $target{$_}
1757 ? add($si->{$_})->($target{$_})
1758 : $si->{$_};
1759 }
1760 }
1761}
1762
1763# ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1764
1765######################################################################
1766# Build up information for skipping certain directories depending on disabled
1767# features, as well as setting up macros for disabled features.
1768
1769# This is a tentative database of directories to skip. Some entries may not
1770# correspond to anything real, but that's ok, they will simply be ignored.
1771# The actual processing of these entries is done in the build.info lookup
1772# loop further down.
1773#
1774# The key is a Unix formatted path in the source tree, the value is an index
1775# into %disabled_info, so any existing path gets added to a corresponding
1776# 'skipped' entry in there with the list of skipped directories.
1777my %skipdir = ();
1778my %disabled_info = (); # For configdata.pm
1779foreach my $what (sort keys %disabled) {
1780 # There are deprecated disablables that translate to themselves.
1781 # They cause disabling cascades, but should otherwise not register.
1782 next if $deprecated_disablables{$what};
1783 # The generated $disabled{"deprecated-x.y"} entries are special
1784 # and treated properly elsewhere
1785 next if $what =~ m|^deprecated-|;
1786
1787 $config{options} .= " no-$what";
1788
1789 if (!grep { $what eq $_ } ( 'buildtest-c++', 'fips', 'threads', 'shared',
1790 'module', 'pic', 'dynamic-engine', 'makedepend',
1791 'zlib-dynamic', 'zlib', 'sse2', 'legacy' )) {
1792 (my $WHAT = uc $what) =~ s|-|_|g;
1793 my $skipdir = $what;
1794
1795 # fix-up crypto/directory name(s)
1796 $skipdir = "ripemd" if $what eq "rmd160";
1797 $skipdir = "whrlpool" if $what eq "whirlpool";
1798
1799 my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1800 push @{$config{openssl_feature_defines}}, $macro;
1801
1802 $skipdir{engines} = $what if $what eq 'engine';
1803 $skipdir{"crypto/$skipdir"} = $what
1804 unless $what eq 'async' || $what eq 'err' || $what eq 'dso';
1805 }
1806}
1807
1808if ($disabled{"dynamic-engine"}) {
1809 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1810} else {
1811 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1812}
1813
1814# If we use the unified build, collect information from build.info files
1815my %unified_info = ();
1816
1817my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1818if ($builder eq "unified") {
1819 use Text::Template 1.46;
1820
1821 sub cleandir {
1822 my $base = shift;
1823 my $dir = shift;
1824 my $relativeto = shift || ".";
1825
1826 $dir = catdir($base,$dir) unless isabsolute($dir);
1827
1828 # Make sure the directories we're building in exists
1829 mkpath($dir);
1830
1831 my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1832 #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1833 return $res;
1834 }
1835
1836 sub cleanfile {
1837 my $base = shift;
1838 my $file = shift;
1839 my $relativeto = shift || ".";
1840
1841 $file = catfile($base,$file) unless isabsolute($file);
1842
1843 my $d = dirname($file);
1844 my $f = basename($file);
1845
1846 # Make sure the directories we're building in exists
1847 mkpath($d);
1848
1849 my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1850 #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1851 return $res;
1852 }
1853
1854 # Store the name of the template file we will build the build file from
1855 # in %config. This may be useful for the build file itself.
1856 my @build_file_template_names =
1857 ( $builder_platform."-".$config{build_file}.".tmpl",
1858 $config{build_file}.".tmpl" );
1859 my @build_file_templates = ();
1860
1861 # First, look in the user provided directory, if given
1862 if (defined env($local_config_envname)) {
1863 @build_file_templates =
1864 map {
1865 if ($^O eq 'VMS') {
1866 # VMS environment variables are logical names,
1867 # which can be used as is
1868 $local_config_envname . ':' . $_;
1869 } else {
1870 catfile(env($local_config_envname), $_);
1871 }
1872 }
1873 @build_file_template_names;
1874 }
1875 # Then, look in our standard directory
1876 push @build_file_templates,
1877 ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1878 @build_file_template_names );
1879
1880 my $build_file_template;
1881 for $_ (@build_file_templates) {
1882 $build_file_template = $_;
1883 last if -f $build_file_template;
1884
1885 $build_file_template = undef;
1886 }
1887 if (!defined $build_file_template) {
1888 die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1889 }
1890 $config{build_file_templates}
1891 = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1892 $blddir),
1893 $build_file_template ];
1894
1895 my @build_dirs = ( [ ] ); # current directory
1896
1897 $config{build_infos} = [ ];
1898
1899 # We want to detect configdata.pm in the source tree, so we
1900 # don't use it if the build tree is different.
1901 my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1902
1903 # Any source file that we recognise is placed in this hash table, with
1904 # the list of its intended destinations as value. When everything has
1905 # been collected, there's a routine that checks that these source files
1906 # exist, or if they are generated, that the generator exists.
1907 my %check_exist = ();
1908 my %check_generate = ();
1909
1910 my %ordinals = ();
1911 while (@build_dirs) {
1912 my @curd = @{shift @build_dirs};
1913 my $sourced = catdir($srcdir, @curd);
1914 my $buildd = catdir($blddir, @curd);
1915
1916 my $unixdir = join('/', @curd);
1917 if (exists $skipdir{$unixdir}) {
1918 my $what = $skipdir{$unixdir};
1919 push @{$disabled_info{$what}->{skipped}}, catdir(@curd);
1920 next;
1921 }
1922
1923 mkpath($buildd);
1924
1925 my $f = 'build.info';
1926 # The basic things we're trying to build
1927 my @programs = ();
1928 my @libraries = ();
1929 my @modules = ();
1930 my @scripts = ();
1931
1932 my %sources = ();
1933 my %shared_sources = ();
1934 my %includes = ();
1935 my %defines = ();
1936 my %depends = ();
1937 my %generate = ();
1938 my %imagedocs = ();
1939 my %htmldocs = ();
1940 my %mandocs = ();
1941
1942 # Support for $variablename in build.info files.
1943 # Embedded perl code is the ultimate master, still. If its output
1944 # contains a dollar sign, it had better be escaped, or it will be
1945 # taken for a variable name prefix.
1946 my %variables = ();
1947 # Variable name syntax
1948 my $variable_name_re = qr/(?P<VARIABLE>[[:alpha:]][[:alnum:]_]*)/;
1949 # Value modifier syntaxes
1950 my $variable_subst_re = qr/\/(?P<RE>(?:\\\/|.)*?)\/(?P<SUBST>.*?)/;
1951 # Variable reference
1952 my $variable_simple_re = qr/(?<!\\)\$${variable_name_re}/;
1953 my $variable_w_mod_re =
1954 qr/(?<!\\)\$\{${variable_name_re}(?P<MOD>(?:\\\/|.)*?)\}/;
1955 # Tie it all together
1956 my $variable_re = qr/${variable_simple_re}|${variable_w_mod_re}/;
1957
1958 my $expand_variables = sub {
1959 my $value = '';
1960 my $value_rest = shift;
1961
1962 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1963 print STDERR
1964 "DEBUG[\$expand_variables] Parsed '$value_rest' ...\n"
1965 }
1966
1967 while ($value_rest =~ /${variable_re}/) {
1968 # We must save important regexp values, because the next
1969 # regexp clears them
1970 my $mod = $+{MOD};
1971 my $variable_value = $variables{$+{VARIABLE}};
1972
1973 $value_rest = $';
1974 $value .= $`;
1975
1976 # Process modifier expressions, if present
1977 if (defined $mod) {
1978 if ($mod =~ /^${variable_subst_re}$/) {
1979 my $re = $+{RE};
1980 my $subst = $+{SUBST};
1981
1982 $variable_value =~ s/\Q$re\E/$subst/g;
1983
1984 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1985 print STDERR
1986 "DEBUG[\$expand_variables] ... and substituted ",
1987 "'$re' with '$subst'\n";
1988 }
1989 }
1990 }
1991
1992 $value .= $variable_value;
1993 }
1994 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1995 print STDERR
1996 "DEBUG[\$expand_variables] ... into: '$value$value_rest'\n";
1997 }
1998 return $value . $value_rest;
1999 };
2000
2001 # Support for attributes in build.info files
2002 my %attributes = ();
2003 my $handle_attributes = sub {
2004 my $attr_str = shift;
2005 my $ref = shift;
2006 my @goals = @_;
2007
2008 return unless defined $attr_str;
2009
2010 my @a = tokenize($attr_str, qr|\s*,\s*|);
2011 foreach my $a (@a) {
2012 my $ac = 1;
2013 my $ak = $a;
2014 my $av = 1;
2015 if ($a =~ m|^(!)?(.*?)\s* = \s*(.*?)$|x) {
2016 $ac = ! $1;
2017 $ak = $2;
2018 $av = $3;
2019 }
2020 foreach my $g (@goals) {
2021 if ($ac) {
2022 $$ref->{$g}->{$ak} = $av;
2023 } else {
2024 delete $$ref->{$g}->{$ak};
2025 }
2026 }
2027 }
2028 };
2029
2030 # Support for pushing values on multiple indexes of a given hash
2031 # array.
2032 my $push_to = sub {
2033 my $valueref = shift;
2034 my $index_str = shift; # May be undef or empty
2035 my $attrref = shift; # May be undef
2036 my $attr_str = shift;
2037 my @values = @_;
2038
2039 if (defined $index_str) {
2040 my @indexes = ( '' );
2041 if ($index_str !~ m|^\s*$|) {
2042 @indexes = tokenize($index_str);
2043 }
2044 foreach (@indexes) {
2045 push @{$valueref->{$_}}, @values;
2046 if (defined $attrref) {
2047 $handle_attributes->($attr_str, \$$attrref->{$_},
2048 @values);
2049 }
2050 }
2051 } else {
2052 push @$valueref, @values;
2053 $handle_attributes->($attr_str, $attrref, @values)
2054 if defined $attrref;
2055 }
2056 };
2057
2058 if ($buildinfo_debug) {
2059 print STDERR "DEBUG: Reading ",catfile($sourced, $f),"\n";
2060 }
2061 push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
2062 my $template =
2063 Text::Template->new(TYPE => 'FILE',
2064 SOURCE => catfile($sourced, $f),
2065 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
2066 die "Something went wrong with $sourced/$f: $!\n" unless $template;
2067 my @text =
2068 split /^/m,
2069 $template->fill_in(HASH => { config => \%config,
2070 target => \%target,
2071 disabled => \%disabled,
2072 withargs => \%withargs,
2073 builddir => abs2rel($buildd, $blddir),
2074 sourcedir => abs2rel($sourced, $blddir),
2075 buildtop => abs2rel($blddir, $blddir),
2076 sourcetop => abs2rel($srcdir, $blddir) },
2077 DELIMITERS => [ "{-", "-}" ]);
2078
2079 # The top item of this stack has the following values
2080 # -2 positive already run and we found ELSE (following ELSIF should fail)
2081 # -1 positive already run (skip until ENDIF)
2082 # 0 negatives so far (if we're at a condition, check it)
2083 # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
2084 # 2 positive ELSE (following ELSIF should fail)
2085 my @skip = ();
2086
2087 # A few useful generic regexps
2088 my $index_re = qr/\[\s*(?P<INDEX>(?:\\.|.)*?)\s*\]/;
2089 my $cond_re = qr/\[\s*(?P<COND>(?:\\.|.)*?)\s*\]/;
2090 my $attribs_re = qr/(?:\{\s*(?P<ATTRIBS>(?:\\.|.)*?)\s*\})?/;
2091 my $value_re = qr/(?P<VALUE>.*?)/;
2092 collect_information(
2093 collect_from_array([ @text ],
2094 qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
2095 $l1 =~ s/\\$//; $l1.$l2 }),
2096 # Info we're looking for
2097 qr/^\s* IF ${cond_re} \s*$/x
2098 => sub {
2099 if (! @skip || $skip[$#skip] > 0) {
2100 push @skip, !! $expand_variables->($+{COND});
2101 } else {
2102 push @skip, -1;
2103 }
2104 },
2105 qr/^\s* ELSIF ${cond_re} \s*$/x
2106 => sub { die "ELSIF out of scope" if ! @skip;
2107 die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
2108 $skip[$#skip] = -1 if $skip[$#skip] != 0;
2109 $skip[$#skip] = !! $expand_variables->($+{COND})
2110 if $skip[$#skip] == 0; },
2111 qr/^\s* ELSE \s*$/x
2112 => sub { die "ELSE out of scope" if ! @skip;
2113 $skip[$#skip] = -2 if $skip[$#skip] != 0;
2114 $skip[$#skip] = 2 if $skip[$#skip] == 0; },
2115 qr/^\s* ENDIF \s*$/x
2116 => sub { die "ENDIF out of scope" if ! @skip;
2117 pop @skip; },
2118 qr/^\s* ${variable_re} \s* = \s* ${value_re} \s* $/x
2119 => sub {
2120 if (!@skip || $skip[$#skip] > 0) {
2121 $variables{$+{VARIABLE}} = $expand_variables->($+{VALUE});
2122 }
2123 },
2124 qr/^\s* SUBDIRS \s* = \s* ${value_re} \s* $/x
2125 => sub {
2126 if (!@skip || $skip[$#skip] > 0) {
2127 foreach (tokenize($expand_variables->($+{VALUE}))) {
2128 push @build_dirs, [ @curd, splitdir($_, 1) ];
2129 }
2130 }
2131 },
2132 qr/^\s* PROGRAMS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2133 => sub { $push_to->(\@programs, undef,
2134 \$attributes{programs}, $+{ATTRIBS},
2135 tokenize($expand_variables->($+{VALUE})))
2136 if !@skip || $skip[$#skip] > 0; },
2137 qr/^\s* LIBS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2138 => sub { $push_to->(\@libraries, undef,
2139 \$attributes{libraries}, $+{ATTRIBS},
2140 tokenize($expand_variables->($+{VALUE})))
2141 if !@skip || $skip[$#skip] > 0; },
2142 qr/^\s* MODULES ${attribs_re} \s* = \s* ${value_re} \s* $/x
2143 => sub { $push_to->(\@modules, undef,
2144 \$attributes{modules}, $+{ATTRIBS},
2145 tokenize($expand_variables->($+{VALUE})))
2146 if !@skip || $skip[$#skip] > 0; },
2147 qr/^\s* SCRIPTS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2148 => sub { $push_to->(\@scripts, undef,
2149 \$attributes{scripts}, $+{ATTRIBS},
2150 tokenize($expand_variables->($+{VALUE})))
2151 if !@skip || $skip[$#skip] > 0; },
2152 qr/^\s* IMAGEDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2153 => sub { $push_to->(\%imagedocs, $expand_variables->($+{INDEX}),
2154 undef, undef,
2155 tokenize($expand_variables->($+{VALUE})))
2156 if !@skip || $skip[$#skip] > 0; },
2157 qr/^\s* HTMLDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2158 => sub { $push_to->(\%htmldocs, $expand_variables->($+{INDEX}),
2159 undef, undef,
2160 tokenize($expand_variables->($+{VALUE})))
2161 if !@skip || $skip[$#skip] > 0; },
2162 qr/^\s* MANDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2163 => sub { $push_to->(\%mandocs, $expand_variables->($+{INDEX}),
2164 undef, undef,
2165 tokenize($expand_variables->($+{VALUE})))
2166 if !@skip || $skip[$#skip] > 0; },
2167 qr/^\s* SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2168 => sub { $push_to->(\%sources, $expand_variables->($+{INDEX}),
2169 \$attributes{sources}, $+{ATTRIBS},
2170 tokenize($expand_variables->($+{VALUE})))
2171 if !@skip || $skip[$#skip] > 0; },
2172 qr/^\s* SHARED_SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2173 => sub { $push_to->(\%shared_sources, $expand_variables->($+{INDEX}),
2174 \$attributes{sources}, $+{ATTRIBS},
2175 tokenize($expand_variables->($+{VALUE})))
2176 if !@skip || $skip[$#skip] > 0; },
2177 qr/^\s* INCLUDE ${index_re} \s* = \s* ${value_re} \s* $/x
2178 => sub { $push_to->(\%includes, $expand_variables->($+{INDEX}),
2179 undef, undef,
2180 tokenize($expand_variables->($+{VALUE})))
2181 if !@skip || $skip[$#skip] > 0; },
2182 qr/^\s* DEFINE ${index_re} \s* = \s* ${value_re} \s* $/x
2183 => sub { $push_to->(\%defines, $expand_variables->($+{INDEX}),
2184 undef, undef,
2185 tokenize($expand_variables->($+{VALUE})))
2186 if !@skip || $skip[$#skip] > 0; },
2187 qr/^\s* DEPEND ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2188 => sub { $push_to->(\%depends, $expand_variables->($+{INDEX}),
2189 \$attributes{depends}, $+{ATTRIBS},
2190 tokenize($expand_variables->($+{VALUE})))
2191 if !@skip || $skip[$#skip] > 0; },
2192 qr/^\s* GENERATE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2193 => sub { $push_to->(\%generate, $expand_variables->($+{INDEX}),
2194 \$attributes{generate}, $+{ATTRIBS},
2195 $expand_variables->($+{VALUE}))
2196 if !@skip || $skip[$#skip] > 0; },
2197 qr/^\s* (?:\#.*)? $/x => sub { },
2198 "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
2199 "BEFORE" => sub {
2200 if ($buildinfo_debug) {
2201 print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
2202 print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2203 }
2204 },
2205 "AFTER" => sub {
2206 if ($buildinfo_debug) {
2207 print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2208 }
2209 },
2210 );
2211 die "runaway IF?" if (@skip);
2212
2213 if (grep { defined $attributes{modules}->{$_}->{engine} } keys %attributes
2214 and !$config{dynamic_engines}) {
2215 die <<"EOF"
2216ENGINES can only be used if configured with 'dynamic-engine'.
2217This is usually a fault in a build.info file.
2218EOF
2219 }
2220
2221 {
2222 my %infos = ( programs => [ @programs ],
2223 libraries => [ @libraries ],
2224 modules => [ @modules ],
2225 scripts => [ @scripts ] );
2226 foreach my $k (keys %infos) {
2227 foreach (@{$infos{$k}}) {
2228 my $item = cleanfile($buildd, $_, $blddir);
2229 $unified_info{$k}->{$item} = 1;
2230
2231 # Fix up associated attributes
2232 $unified_info{attributes}->{$k}->{$item} =
2233 $attributes{$k}->{$_}
2234 if defined $attributes{$k}->{$_};
2235 }
2236 }
2237 }
2238
2239 # Check that we haven't defined any library as both shared and
2240 # explicitly static. That is forbidden.
2241 my @doubles = ();
2242 foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2243 (my $l = $_) =~ s/\.a$//;
2244 push @doubles, $l if defined $unified_info{libraries}->{$l};
2245 }
2246 die "these libraries are both explicitly static and shared:\n ",
2247 join(" ", @doubles), "\n"
2248 if @doubles;
2249
2250 foreach (keys %sources) {
2251 my $dest = $_;
2252 my $ddest = cleanfile($buildd, $_, $blddir);
2253 foreach (@{$sources{$dest}}) {
2254 my $s = cleanfile($sourced, $_, $blddir);
2255
2256 # If it's generated or we simply don't find it in the source
2257 # tree, we assume it's in the build tree.
2258 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2259 $s = cleanfile($buildd, $_, $blddir);
2260 }
2261 my $o = $_;
2262 # We recognise C++, C and asm files
2263 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2264 push @{$check_exist{$s}}, $ddest;
2265 $o =~ s/\.[csS]$/.o/; # C and assembler
2266 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2267 $o = cleanfile($buildd, $o, $blddir);
2268 $unified_info{sources}->{$ddest}->{$o} = -1;
2269 $unified_info{sources}->{$o}->{$s} = -1;
2270 } elsif ($s =~ /\.rc$/) {
2271 # We also recognise resource files
2272 push @{$check_exist{$s}}, $ddest;
2273 $o =~ s/\.rc$/.res/; # Resource configuration
2274 $o = cleanfile($buildd, $o, $blddir);
2275 $unified_info{sources}->{$ddest}->{$o} = -1;
2276 $unified_info{sources}->{$o}->{$s} = -1;
2277 } else {
2278 push @{$check_exist{$s}}, $ddest;
2279 $unified_info{sources}->{$ddest}->{$s} = 1;
2280 }
2281 # Fix up associated attributes
2282 if ($o ne $_) {
2283 $unified_info{attributes}->{sources}->{$ddest}->{$o} =
2284 $unified_info{attributes}->{sources}->{$o}->{$s} =
2285 $attributes{sources}->{$dest}->{$_}
2286 if defined $attributes{sources}->{$dest}->{$_};
2287 } else {
2288 $unified_info{attributes}->{sources}->{$ddest}->{$s} =
2289 $attributes{sources}->{$dest}->{$_}
2290 if defined $attributes{sources}->{$dest}->{$_};
2291 }
2292 }
2293 }
2294
2295 foreach (keys %shared_sources) {
2296 my $dest = $_;
2297 my $ddest = cleanfile($buildd, $_, $blddir);
2298 foreach (@{$shared_sources{$dest}}) {
2299 my $s = cleanfile($sourced, $_, $blddir);
2300
2301 # If it's generated or we simply don't find it in the source
2302 # tree, we assume it's in the build tree.
2303 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2304 $s = cleanfile($buildd, $_, $blddir);
2305 }
2306
2307 my $o = $_;
2308 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2309 # We recognise C++, C and asm files
2310 push @{$check_exist{$s}}, $ddest;
2311 $o =~ s/\.[csS]$/.o/; # C and assembler
2312 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2313 $o = cleanfile($buildd, $o, $blddir);
2314 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2315 $unified_info{sources}->{$o}->{$s} = -1;
2316 } elsif ($s =~ /\.rc$/) {
2317 # We also recognise resource files
2318 push @{$check_exist{$s}}, $ddest;
2319 $o =~ s/\.rc$/.res/; # Resource configuration
2320 $o = cleanfile($buildd, $o, $blddir);
2321 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2322 $unified_info{sources}->{$o}->{$s} = -1;
2323 } elsif ($s =~ /\.ld$/) {
2324 # We also recognise linker scripts (or corresponding)
2325 # We know they are generated files
2326 push @{$check_exist{$s}}, $ddest;
2327 $o = cleanfile($buildd, $_, $blddir);
2328 $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2329 } else {
2330 die "unrecognised source file type for shared library: $s\n";
2331 }
2332 # Fix up associated attributes
2333 if ($o ne $_) {
2334 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2335 $unified_info{attributes}->{sources}->{$o}->{$s} =
2336 $attributes{sources}->{$dest}->{$_}
2337 if defined $attributes{sources}->{$dest}->{$_};
2338 } else {
2339 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2340 $attributes{sources}->{$dest}->{$_}
2341 if defined $attributes{sources}->{$dest}->{$_};
2342 }
2343 }
2344 }
2345
2346 foreach (keys %generate) {
2347 my $dest = $_;
2348 my $ddest = cleanfile($buildd, $_, $blddir);
2349 die "more than one generator for $dest: "
2350 ,join(" ", @{$generate{$_}}),"\n"
2351 if scalar @{$generate{$_}} > 1;
2352 my @generator = split /\s+/, $generate{$dest}->[0];
2353 my $gen = $generator[0];
2354 $generator[0] = cleanfile($sourced, $gen, $blddir);
2355
2356 # If the generator is itself generated, it's in the build tree
2357 if ($generate{$gen} || ! -f $generator[0]) {
2358 $generator[0] = cleanfile($buildd, $gen, $blddir);
2359 }
2360 $check_generate{$ddest}->{$generator[0]}++;
2361
2362 $unified_info{generate}->{$ddest} = [ @generator ];
2363 # Fix up associated attributes
2364 $unified_info{attributes}->{generate}->{$ddest} =
2365 $attributes{generate}->{$dest}->{$gen}
2366 if defined $attributes{generate}->{$dest}->{$gen};
2367 }
2368
2369 foreach (keys %depends) {
2370 my $dest = $_;
2371 my $ddest = $dest;
2372
2373 if ($dest =~ /^\|(.*)\|$/) {
2374 # Collect the raw target
2375 $unified_info{targets}->{$1} = 1;
2376 $ddest = $1;
2377 } elsif ($dest eq '') {
2378 $ddest = '';
2379 } else {
2380 $ddest = cleanfile($sourced, $_, $blddir);
2381
2382 # If the destination doesn't exist in source, it can only be
2383 # a generated file in the build tree.
2384 if ($ddest eq $src_configdata || ! -f $ddest) {
2385 $ddest = cleanfile($buildd, $_, $blddir);
2386 }
2387 }
2388 foreach (@{$depends{$dest}}) {
2389 my $d = cleanfile($sourced, $_, $blddir);
2390 my $d2 = cleanfile($buildd, $_, $blddir);
2391
2392 # If we know it's generated, or assume it is because we can't
2393 # find it in the source tree, we set file we depend on to be
2394 # in the build tree rather than the source tree.
2395 if ($d eq $src_configdata
2396 || (grep { $d2 eq $_ }
2397 keys %{$unified_info{generate}})
2398 || ! -f $d) {
2399 $d = $d2;
2400 }
2401 $unified_info{depends}->{$ddest}->{$d} = 1;
2402
2403 # Fix up associated attributes
2404 $unified_info{attributes}->{depends}->{$ddest}->{$d} =
2405 $attributes{depends}->{$dest}->{$_}
2406 if defined $attributes{depends}->{$dest}->{$_};
2407 }
2408 }
2409
2410 foreach (keys %includes) {
2411 my $dest = $_;
2412 my $ddest = cleanfile($sourced, $_, $blddir);
2413
2414 # If the destination doesn't exist in source, it can only be
2415 # a generated file in the build tree.
2416 if ($ddest eq $src_configdata || ! -f $ddest) {
2417 $ddest = cleanfile($buildd, $_, $blddir);
2418 }
2419 foreach (@{$includes{$dest}}) {
2420 my $is = cleandir($sourced, $_, $blddir);
2421 my $ib = cleandir($buildd, $_, $blddir);
2422 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2423 unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2424 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2425 unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2426 }
2427 }
2428
2429 foreach my $dest (keys %defines) {
2430 my $ddest;
2431
2432 if ($dest ne "") {
2433 $ddest = cleanfile($sourced, $dest, $blddir);
2434
2435 # If the destination doesn't exist in source, it can only
2436 # be a generated file in the build tree.
2437 if (! -f $ddest) {
2438 $ddest = cleanfile($buildd, $dest, $blddir);
2439 }
2440 }
2441 foreach my $v (@{$defines{$dest}}) {
2442 $v =~ m|^([^=]*)(=.*)?$|;
2443 die "0 length macro name not permitted\n" if $1 eq "";
2444 if ($dest ne "") {
2445 die "$1 defined more than once\n"
2446 if defined $unified_info{defines}->{$ddest}->{$1};
2447 $unified_info{defines}->{$ddest}->{$1} = $2;
2448 } else {
2449 die "$1 defined more than once\n"
2450 if grep { $v eq $_ } @{$config{defines}};
2451 push @{$config{defines}}, $v;
2452 }
2453 }
2454 }
2455
2456 foreach my $section (keys %imagedocs) {
2457 foreach (@{$imagedocs{$section}}) {
2458 my $imagedocs = cleanfile($buildd, $_, $blddir);
2459 $unified_info{imagedocs}->{$section}->{$imagedocs} = 1;
2460 }
2461 }
2462
2463 foreach my $section (keys %htmldocs) {
2464 foreach (@{$htmldocs{$section}}) {
2465 my $htmldocs = cleanfile($buildd, $_, $blddir);
2466 $unified_info{htmldocs}->{$section}->{$htmldocs} = 1;
2467 }
2468 }
2469
2470 foreach my $section (keys %mandocs) {
2471 foreach (@{$mandocs{$section}}) {
2472 my $mandocs = cleanfile($buildd, $_, $blddir);
2473 $unified_info{mandocs}->{$section}->{$mandocs} = 1;
2474 }
2475 }
2476 }
2477
2478 my $ordinals_text = join(', ', sort keys %ordinals);
2479 warn <<"EOF" if $ordinals_text;
2480
2481WARNING: ORDINALS were specified for $ordinals_text
2482They are ignored and should be replaced with a combination of GENERATE,
2483DEPEND and SHARED_SOURCE.
2484EOF
2485
2486 # Check that each generated file is only generated once
2487 my $ambiguous_generation = 0;
2488 foreach (sort keys %check_generate) {
2489 my @generators = sort keys %{$check_generate{$_}};
2490 my $generators_txt = join(', ', @generators);
2491 if (scalar @generators > 1) {
2492 warn "$_ is GENERATEd by more than one generator ($generators_txt)\n";
2493 $ambiguous_generation++;
2494 }
2495 if ($check_generate{$_}->{$generators[0]} > 1) {
2496 warn "INFO: $_ has more than one GENERATE declaration (same generator)\n"
2497 }
2498 }
2499 die "There are ambiguous source file generations\n"
2500 if $ambiguous_generation > 0;
2501
2502 # All given source files should exist, or if generated, their
2503 # generator should exist. This loop ensures this is true.
2504 my $missing = 0;
2505 foreach my $orig (sort keys %check_exist) {
2506 foreach my $dest (@{$check_exist{$orig}}) {
2507 if ($orig ne $src_configdata) {
2508 if ($orig =~ /\.a$/) {
2509 # Static library names may be used as sources, so we
2510 # need to detect those and give them special treatment.
2511 unless (grep { $_ eq $orig }
2512 keys %{$unified_info{libraries}}) {
2513 warn "$orig is given as source for $dest, but no such library is built\n";
2514 $missing++;
2515 }
2516 } else {
2517 # A source may be generated, and its generator may be
2518 # generated as well. We therefore loop to dig out the
2519 # first generator.
2520 my $gen = $orig;
2521
2522 while (my @next = keys %{$check_generate{$gen}}) {
2523 $gen = $next[0];
2524 }
2525
2526 if (! -f $gen) {
2527 if ($gen ne $orig) {
2528 $missing++;
2529 warn "$orig is given as source for $dest, but its generator (leading to $gen) is missing\n";
2530 } else {
2531 $missing++;
2532 warn "$orig is given as source for $dest, but is missing\n";
2533 }
2534 }
2535 }
2536 }
2537 }
2538 }
2539 die "There are files missing\n" if $missing > 0;
2540
2541 # Go through the sources of all libraries and check that the same basename
2542 # doesn't appear more than once. Some static library archivers depend on
2543 # them being unique.
2544 {
2545 my $err = 0;
2546 foreach my $prod (keys %{$unified_info{libraries}}) {
2547 my @prod_sources =
2548 map { keys %{$unified_info{sources}->{$_}} }
2549 keys %{$unified_info{sources}->{$prod}};
2550 my %srccnt = ();
2551
2552 # Count how many times a given each source basename
2553 # appears for each product.
2554 foreach my $src (@prod_sources) {
2555 $srccnt{basename $src}++;
2556 }
2557
2558 foreach my $src (keys %srccnt) {
2559 if ((my $cnt = $srccnt{$src}) > 1) {
2560 print STDERR "$src appears $cnt times for the product $prod\n";
2561 $err++
2562 }
2563 }
2564 }
2565 die if $err > 0;
2566 }
2567
2568 # Massage the result
2569
2570 # If we depend on a header file or a perl module, add an inclusion of
2571 # its directory to allow smoothe inclusion
2572 foreach my $dest (keys %{$unified_info{depends}}) {
2573 next if $dest eq "";
2574 foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2575 next unless $d =~ /\.(h|pm)$/;
2576 my $i = dirname($d);
2577 my $spot =
2578 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2579 ? 'build' : 'source';
2580 push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2581 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2582 }
2583 }
2584
2585 # Go through all intermediary files and change their names to something that
2586 # reflects what they will be built for. Note that for some source files,
2587 # this leads to duplicate object files because they are used multiple times.
2588 # the goal is to rename all object files according to this scheme:
2589 # {productname}-{midfix}-{origobjname}.[o|res]
2590 # the {midfix} is a keyword indicating the type of product, which is mostly
2591 # valuable for libraries since they come in two forms.
2592 #
2593 # This also reorganises the {sources} and {shared_sources} so that the
2594 # former only contains ALL object files that are supposed to end up in
2595 # static libraries and programs, while the latter contains ALL object files
2596 # that are supposed to end up in shared libraries and DSOs.
2597 # The main reason for having two different source structures is to allow
2598 # the same name to be used for the static and the shared variants of a
2599 # library.
2600 {
2601 # Take copies so we don't get interference from added stuff
2602 my %unified_copy = ();
2603 foreach (('sources', 'shared_sources')) {
2604 $unified_copy{$_} = { %{$unified_info{$_}} }
2605 if defined($unified_info{$_});
2606 delete $unified_info{$_};
2607 }
2608 foreach my $prodtype (('programs', 'libraries', 'modules', 'scripts')) {
2609 # $intent serves multi purposes:
2610 # - give a prefix for the new object files names
2611 # - in the case of libraries, rearrange the object files so static
2612 # libraries use the 'sources' structure exclusively, while shared
2613 # libraries use the 'shared_sources' structure exclusively.
2614 my $intent = {
2615 programs => { bin => { src => [ 'sources' ],
2616 dst => 'sources' } },
2617 libraries => { lib => { src => [ 'sources' ],
2618 dst => 'sources' },
2619 shlib => { prodselect =>
2620 sub { grep !/\.a$/, @_ },
2621 src => [ 'sources',
2622 'shared_sources' ],
2623 dst => 'shared_sources' } },
2624 modules => { dso => { src => [ 'sources' ],
2625 dst => 'sources' } },
2626 scripts => { script => { src => [ 'sources' ],
2627 dst => 'sources' } }
2628 } -> {$prodtype};
2629 foreach my $kind (keys %$intent) {
2630 next if ($intent->{$kind}->{dst} eq 'shared_sources'
2631 && $disabled{shared});
2632
2633 my @src = @{$intent->{$kind}->{src}};
2634 my $dst = $intent->{$kind}->{dst};
2635 my $prodselect = $intent->{$kind}->{prodselect} // sub { @_ };
2636 foreach my $prod ($prodselect->(keys %{$unified_info{$prodtype}})) {
2637 # %prod_sources has all applicable objects as keys, and
2638 # their corresponding sources as values
2639 my %prod_sources =
2640 map { $_ => [ keys %{$unified_copy{sources}->{$_}} ] }
2641 map { keys %{$unified_copy{$_}->{$prod}} }
2642 @src;
2643 foreach (keys %prod_sources) {
2644 # Only affect object files and resource files,
2645 # the others simply get a new value
2646 # (+1 instead of -1)
2647 if ($_ =~ /\.(o|res)$/) {
2648 (my $prodname = $prod) =~ s|\.a$||;
2649 my $newobj =
2650 catfile(dirname($_),
2651 basename($prodname)
2652 . '-' . $kind
2653 . '-' . basename($_));
2654 $unified_info{$dst}->{$prod}->{$newobj} = 1;
2655 foreach my $src (@{$prod_sources{$_}}) {
2656 $unified_info{sources}->{$newobj}->{$src} = 1;
2657 # Adjust source attributes
2658 my $attrs = $unified_info{attributes}->{sources};
2659 if (defined $attrs->{$prod}
2660 && defined $attrs->{$prod}->{$_}) {
2661 $attrs->{$prod}->{$newobj} =
2662 $attrs->{$prod}->{$_};
2663 delete $attrs->{$prod}->{$_};
2664 }
2665 foreach my $objsrc (keys %{$attrs->{$_} // {}}) {
2666 $attrs->{$newobj}->{$objsrc} =
2667 $attrs->{$_}->{$objsrc};
2668 delete $attrs->{$_}->{$objsrc};
2669 }
2670 }
2671 # Adjust dependencies
2672 foreach my $deps (keys %{$unified_info{depends}->{$_}}) {
2673 $unified_info{depends}->{$_}->{$deps} = -1;
2674 $unified_info{depends}->{$newobj}->{$deps} = 1;
2675 }
2676 # Adjust includes
2677 foreach my $k (('source', 'build')) {
2678 next unless
2679 defined($unified_info{includes}->{$_}->{$k});
2680 my @incs = @{$unified_info{includes}->{$_}->{$k}};
2681 $unified_info{includes}->{$newobj}->{$k} = [ @incs ];
2682 }
2683 } else {
2684 $unified_info{$dst}->{$prod}->{$_} = 1;
2685 }
2686 }
2687 }
2688 }
2689 }
2690 }
2691
2692 # At this point, we have a number of sources with the value -1. They
2693 # aren't part of the local build and are probably meant for a different
2694 # platform, and can therefore be cleaned away. That happens when making
2695 # %unified_info more efficient below.
2696
2697 ### Make unified_info a bit more efficient
2698 # One level structures
2699 foreach (("programs", "libraries", "modules", "scripts", "targets")) {
2700 $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2701 }
2702 # Two level structures
2703 foreach my $l1 (("sources", "shared_sources", "ldadd", "depends",
2704 "imagedocs", "htmldocs", "mandocs")) {
2705 foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2706 my @items =
2707 sort
2708 grep { $unified_info{$l1}->{$l2}->{$_} > 0 }
2709 keys %{$unified_info{$l1}->{$l2}};
2710 if (@items) {
2711 $unified_info{$l1}->{$l2} = [ @items ];
2712 } else {
2713 delete $unified_info{$l1}->{$l2};
2714 }
2715 }
2716 }
2717 # Defines
2718 foreach my $dest (sort keys %{$unified_info{defines}}) {
2719 $unified_info{defines}->{$dest}
2720 = [ map { $_.$unified_info{defines}->{$dest}->{$_} }
2721 sort keys %{$unified_info{defines}->{$dest}} ];
2722 }
2723 # Includes
2724 foreach my $dest (sort keys %{$unified_info{includes}}) {
2725 if (defined($unified_info{includes}->{$dest}->{build})) {
2726 my @source_includes = ();
2727 @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2728 if defined($unified_info{includes}->{$dest}->{source});
2729 $unified_info{includes}->{$dest} =
2730 [ @{$unified_info{includes}->{$dest}->{build}} ];
2731 foreach my $inc (@source_includes) {
2732 push @{$unified_info{includes}->{$dest}}, $inc
2733 unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2734 }
2735 } elsif (defined($unified_info{includes}->{$dest}->{source})) {
2736 $unified_info{includes}->{$dest} =
2737 [ @{$unified_info{includes}->{$dest}->{source}} ];
2738 } else {
2739 delete $unified_info{includes}->{$dest};
2740 }
2741 }
2742
2743 # For convenience collect information regarding directories where
2744 # files are generated, those generated files and the end product
2745 # they end up in where applicable. Then, add build rules for those
2746 # directories
2747 my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2748 "dso" => [ @{$unified_info{modules}} ],
2749 "bin" => [ @{$unified_info{programs}} ],
2750 "script" => [ @{$unified_info{scripts}} ],
2751 "docs" => [ (map { @{$unified_info{imagedocs}->{$_} // []} }
2752 keys %{$unified_info{imagedocs} // {}}),
2753 (map { @{$unified_info{htmldocs}->{$_} // []} }
2754 keys %{$unified_info{htmldocs} // {}}),
2755 (map { @{$unified_info{mandocs}->{$_} // []} }
2756 keys %{$unified_info{mandocs} // {}}) ] );
2757 foreach my $type (sort keys %loopinfo) {
2758 foreach my $product (@{$loopinfo{$type}}) {
2759 my %dirs = ();
2760 my $pd = dirname($product);
2761
2762 foreach (@{$unified_info{sources}->{$product} // []},
2763 @{$unified_info{shared_sources}->{$product} // []}) {
2764 my $d = dirname($_);
2765
2766 # We don't want to create targets for source directories
2767 # when building out of source
2768 next if ($config{sourcedir} ne $config{builddir}
2769 && $d =~ m|^\Q$config{sourcedir}\E|);
2770 # We already have a "test" target, and the current directory
2771 # is just silly to make a target for
2772 next if $d eq "test" || $d eq ".";
2773
2774 $dirs{$d} = 1;
2775 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2776 if $d ne $pd;
2777 }
2778 foreach (sort keys %dirs) {
2779 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2780 $product;
2781 }
2782 }
2783 }
2784}
2785
2786# For the schemes that need it, we provide the old *_obj configs
2787# from the *_asm_obj ones
2788foreach (grep /_(asm|aux)_src$/, keys %target) {
2789 my $src = $_;
2790 (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2791 $target{$obj} = $target{$src};
2792 $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2793 $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2794}
2795
2796# Write down our configuration where it fits #########################
2797
2798my %template_vars = (
2799 config => \%config,
2800 target => \%target,
2801 disablables => \@disablables,
2802 disablables_int => \@disablables_int,
2803 disabled => \%disabled,
2804 withargs => \%withargs,
2805 unified_info => \%unified_info,
2806 tls => \@tls,
2807 dtls => \@dtls,
2808 makevars => [ sort keys %user ],
2809 disabled_info => \%disabled_info,
2810 user_crossable => \@user_crossable,
2811);
2812my $configdata_outname = 'configdata.pm';
2813open CONFIGDATA, ">$configdata_outname.new"
2814 or die "Trying to create $configdata_outname.new: $!";
2815my $configdata_tmplname = cleanfile($srcdir, "configdata.pm.in", $blddir);
2816my $configdata_tmpl =
2817 OpenSSL::Template->new(TYPE => 'FILE', SOURCE => $configdata_tmplname);
2818$configdata_tmpl->fill_in(
2819 FILENAME => $configdata_tmplname,
2820 OUTPUT => \*CONFIGDATA,
2821 HASH => { %template_vars,
2822 autowarntext => [
2823 'WARNING: do not edit!',
2824 "Generated by Configure from $configdata_tmplname",
2825 ] }
2826) or die $Text::Template::ERROR;
2827close CONFIGDATA;
2828
2829rename "$configdata_outname.new", $configdata_outname;
2830if ($builder_platform eq 'unix') {
2831 my $mode = (0755 & ~umask);
2832 chmod $mode, 'configdata.pm'
2833 or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2834}
2835print "Created $configdata_outname\n";
2836
2837print "Running $configdata_outname\n";
2838my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
2839my $cmd = "$perlcmd $configdata_outname";
2840#print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
2841system($cmd);
2842exit 1 if $? != 0;
2843
2844$SIG{__DIE__} = $orig_death_handler;
2845
2846print <<"EOF" if ($disabled{threads} eq "unavailable");
2847
2848The library could not be configured for supporting multi-threaded
2849applications as the compiler options required on this system are not known.
2850See file INSTALL.md for details if you need multi-threading.
2851EOF
2852
2853print <<"EOF" if ($no_shared_warn);
2854
2855The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2856platform, so we will pretend you gave the option 'no-pic', which also disables
2857'shared' and 'dynamic-engine'. If you know how to implement shared libraries
2858or position independent code, please let us know (but please first make sure
2859you have tried with a current version of OpenSSL).
2860EOF
2861
2862print $banner;
2863
2864exit(0);
2865
2866######################################################################
2867#
2868# Helpers and utility functions
2869#
2870
2871# Death handler, to print a helpful message in case of failure #######
2872#
2873sub death_handler {
2874 die @_ if $^S; # To prevent the added message in eval blocks
2875 my $build_file = $config{build_file} // "build file";
2876 my @message = ( <<"_____", @_ );
2877
2878Failure! $build_file wasn't produced.
2879Please read INSTALL.md and associated NOTES-* files. You may also have to
2880look over your available compiler tool chain or change your configuration.
2881
2882_____
2883
2884 # Dying is terminal, so it's ok to reset the signal handler here.
2885 $SIG{__DIE__} = $orig_death_handler;
2886 die @message;
2887}
2888
2889# Configuration file reading #########################################
2890
2891# Note: All of the helper functions are for lazy evaluation. They all
2892# return a CODE ref, which will return the intended value when evaluated.
2893# Thus, whenever there's mention of a returned value, it's about that
2894# intended value.
2895
2896# Helper function to implement conditional value variants, with a default
2897# plus additional values based on the value of $config{build_type}.
2898# Arguments are given in hash table form:
2899#
2900# picker(default => "Basic string: ",
2901# debug => "debug",
2902# release => "release")
2903#
2904# When configuring with --debug, the resulting string will be
2905# "Basic string: debug", and when not, it will be "Basic string: release"
2906#
2907# This can be used to create variants of sets of flags according to the
2908# build type:
2909#
2910# cflags => picker(default => "-Wall",
2911# debug => "-g -O0",
2912# release => "-O3")
2913#
2914sub picker {
2915 my %opts = @_;
2916 return sub { add($opts{default} || (),
2917 $opts{$config{build_type}} || ())->(); }
2918}
2919
2920# Helper function to combine several values of different types into one.
2921# This is useful if you want to combine a string with the result of a
2922# lazy function, such as:
2923#
2924# cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2925#
2926sub combine {
2927 my @stuff = @_;
2928 return sub { add(@stuff)->(); }
2929}
2930
2931# Helper function to implement conditional values depending on the value
2932# of $disabled{threads}. Can be used as follows:
2933#
2934# cflags => combine("-Wall", threads("-pthread"))
2935#
2936sub threads {
2937 my @flags = @_;
2938 return sub { add($disabled{threads} ? () : @flags)->(); }
2939}
2940
2941sub shared {
2942 my @flags = @_;
2943 return sub { add($disabled{shared} ? () : @flags)->(); }
2944}
2945
2946our $add_called = 0;
2947# Helper function to implement adding values to already existing configuration
2948# values. It handles elements that are ARRAYs, CODEs and scalars
2949sub _add {
2950 my $separator = shift;
2951
2952 # If there's any ARRAY in the collection of values OR the separator
2953 # is undef, we will return an ARRAY of combined values, otherwise a
2954 # string of joined values with $separator as the separator.
2955 my $found_array = !defined($separator);
2956
2957 my @values =
2958 map {
2959 my $res = $_;
2960 while (ref($res) eq "CODE") {
2961 $res = $res->();
2962 }
2963 if (defined($res)) {
2964 if (ref($res) eq "ARRAY") {
2965 $found_array = 1;
2966 @$res;
2967 } else {
2968 $res;
2969 }
2970 } else {
2971 ();
2972 }
2973 } (@_);
2974
2975 $add_called = 1;
2976
2977 if ($found_array) {
2978 [ @values ];
2979 } else {
2980 join($separator, grep { defined($_) && $_ ne "" } @values);
2981 }
2982}
2983sub add_before {
2984 my $separator = " ";
2985 if (ref($_[$#_]) eq "HASH") {
2986 my $opts = pop;
2987 $separator = $opts->{separator};
2988 }
2989 my @x = @_;
2990 sub { _add($separator, @x, @_) };
2991}
2992sub add {
2993 my $separator = " ";
2994 if (ref($_[$#_]) eq "HASH") {
2995 my $opts = pop;
2996 $separator = $opts->{separator};
2997 }
2998 my @x = @_;
2999 sub { _add($separator, @_, @x) };
3000}
3001
3002sub read_eval_file {
3003 my $fname = shift;
3004 my $content;
3005 my @result;
3006
3007 open F, "< $fname" or die "Can't open '$fname': $!\n";
3008 {
3009 undef local $/;
3010 $content = <F>;
3011 }
3012 close F;
3013 {
3014 local $@;
3015
3016 @result = ( eval $content );
3017 warn $@ if $@;
3018 }
3019 return wantarray ? @result : $result[0];
3020}
3021
3022# configuration reader, evaluates the input file as a perl script and expects
3023# it to fill %targets with target configurations. Those are then added to
3024# %table.
3025sub read_config {
3026 my $fname = shift;
3027 my %targets;
3028
3029 {
3030 # Protect certain tables from tampering
3031 local %table = ();
3032
3033 %targets = read_eval_file($fname);
3034 }
3035 my %preexisting = ();
3036 foreach (sort keys %targets) {
3037 $preexisting{$_} = 1 if $table{$_};
3038 }
3039 die <<"EOF",
3040The following config targets from $fname
3041shadow pre-existing config targets with the same name:
3042EOF
3043 map { " $_\n" } sort keys %preexisting
3044 if %preexisting;
3045
3046
3047 # For each target, check that it's configured with a hash table.
3048 foreach (keys %targets) {
3049 if (ref($targets{$_}) ne "HASH") {
3050 if (ref($targets{$_}) eq "") {
3051 warn "Deprecated target configuration for $_, ignoring...\n";
3052 } else {
3053 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3054 }
3055 delete $targets{$_};
3056 } else {
3057 $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3058 }
3059 }
3060
3061 %table = (%table, %targets);
3062
3063}
3064
3065# configuration resolver. Will only resolve all the lazy evaluation
3066# codeblocks for the chosen target and all those it inherits from,
3067# recursively
3068sub resolve_config {
3069 my $target = shift;
3070 my @breadcrumbs = @_;
3071
3072# my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3073
3074 if (grep { $_ eq $target } @breadcrumbs) {
3075 die "inherit_from loop! target backtrace:\n "
3076 ,$target,"\n ",join("\n ", @breadcrumbs),"\n";
3077 }
3078
3079 if (!defined($table{$target})) {
3080 warn "Warning! target $target doesn't exist!\n";
3081 return ();
3082 }
3083 # Recurse through all inheritances. They will be resolved on the
3084 # fly, so when this operation is done, they will all just be a
3085 # bunch of attributes with string values.
3086 # What we get here, though, are keys with references to lists of
3087 # the combined values of them all. We will deal with lists after
3088 # this stage is done.
3089 my %combined_inheritance = ();
3090 if ($table{$target}->{inherit_from}) {
3091 my @inherit_from =
3092 map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3093 foreach (@inherit_from) {
3094 my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3095
3096 # 'template' is a marker that's considered private to
3097 # the config that had it.
3098 delete $inherited_config{template};
3099
3100 foreach (keys %inherited_config) {
3101 if (!$combined_inheritance{$_}) {
3102 $combined_inheritance{$_} = [];
3103 }
3104 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3105 }
3106 }
3107 }
3108
3109 # We won't need inherit_from in this target any more, since we've
3110 # resolved all the inheritances that lead to this
3111 delete $table{$target}->{inherit_from};
3112
3113 # Now is the time to deal with those lists. Here's the place to
3114 # decide what shall be done with those lists, all based on the
3115 # values of the target we're currently dealing with.
3116 # - If a value is a coderef, it will be executed with the list of
3117 # inherited values as arguments.
3118 # - If the corresponding key doesn't have a value at all or is the
3119 # empty string, the inherited value list will be run through the
3120 # default combiner (below), and the result becomes this target's
3121 # value.
3122 # - Otherwise, this target's value is assumed to be a string that
3123 # will simply override the inherited list of values.
3124 my $default_combiner = add();
3125
3126 my %all_keys =
3127 map { $_ => 1 } (keys %combined_inheritance,
3128 keys %{$table{$target}});
3129
3130 sub process_values {
3131 my $object = shift;
3132 my $inherited = shift; # Always a [ list ]
3133 my $target = shift;
3134 my $entry = shift;
3135
3136 $add_called = 0;
3137
3138 while(ref($object) eq "CODE") {
3139 $object = $object->(@$inherited);
3140 }
3141 if (!defined($object)) {
3142 return ();
3143 }
3144 elsif (ref($object) eq "ARRAY") {
3145 local $add_called; # To make sure recursive calls don't affect it
3146 return [ map { process_values($_, $inherited, $target, $entry) }
3147 @$object ];
3148 } elsif (ref($object) eq "") {
3149 return $object;
3150 } else {
3151 die "cannot handle reference type ",ref($object)
3152 ," found in target ",$target," -> ",$entry,"\n";
3153 }
3154 }
3155
3156 foreach my $key (sort keys %all_keys) {
3157 my $previous = $combined_inheritance{$key};
3158
3159 # Current target doesn't have a value for the current key?
3160 # Assign it the default combiner, the rest of this loop body
3161 # will handle it just like any other coderef.
3162 if (!exists $table{$target}->{$key}) {
3163 $table{$target}->{$key} = $default_combiner;
3164 }
3165
3166 $table{$target}->{$key} = process_values($table{$target}->{$key},
3167 $combined_inheritance{$key},
3168 $target, $key);
3169 unless(defined($table{$target}->{$key})) {
3170 delete $table{$target}->{$key};
3171 }
3172# if ($extra_checks &&
3173# $previous && !($add_called || $previous ~~ $table{$target}->{$key})) {
3174# warn "$key got replaced in $target\n";
3175# }
3176 }
3177
3178 # Finally done, return the result.
3179 return %{$table{$target}};
3180}
3181
3182sub usage
3183 {
3184 print STDERR $usage;
3185 print STDERR "\npick os/compiler from:\n";
3186 my $j=0;
3187 my $i;
3188 my $k=0;
3189 foreach $i (sort keys %table)
3190 {
3191 next if $table{$i}->{template};
3192 next if $i =~ /^debug/;
3193 $k += length($i) + 1;
3194 if ($k > 78)
3195 {
3196 print STDERR "\n";
3197 $k=length($i);
3198 }
3199 print STDERR $i . " ";
3200 }
3201 foreach $i (sort keys %table)
3202 {
3203 next if $table{$i}->{template};
3204 next if $i !~ /^debug/;
3205 $k += length($i) + 1;
3206 if ($k > 78)
3207 {
3208 print STDERR "\n";
3209 $k=length($i);
3210 }
3211 print STDERR $i . " ";
3212 }
3213 exit(1);
3214 }
3215
3216sub compiler_predefined {
3217 state %predefined;
3218 my $cc = shift;
3219
3220 return () if $^O eq 'VMS';
3221
3222 die 'compiler_predefined called without a compiler command'
3223 unless $cc;
3224
3225 if (! $predefined{$cc}) {
3226
3227 $predefined{$cc} = {};
3228
3229 # collect compiler pre-defines from gcc or gcc-alike...
3230 open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3231 while (my $l = <PIPE>) {
3232 $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3233 $predefined{$cc}->{$1} = $2 // '';
3234 }
3235 close(PIPE);
3236 }
3237
3238 return %{$predefined{$cc}};
3239}
3240
3241sub which
3242{
3243 my ($name)=@_;
3244
3245 if (eval { require IPC::Cmd; 1; }) {
3246 IPC::Cmd->import();
3247 return scalar IPC::Cmd::can_run($name);
3248 } else {
3249 # if there is $directories component in splitpath,
3250 # then it's not something to test with $PATH...
3251 return $name if (File::Spec->splitpath($name))[1];
3252
3253 foreach (File::Spec->path()) {
3254 my $fullpath = catfile($_, "$name$target{exe_extension}");
3255 if (-f $fullpath and -x $fullpath) {
3256 return $fullpath;
3257 }
3258 }
3259 }
3260}
3261
3262sub env
3263{
3264 my $name = shift;
3265 my %opts = @_;
3266
3267 unless ($opts{cacheonly}) {
3268 # Note that if $ENV{$name} doesn't exist or is undefined,
3269 # $config{perlenv}->{$name} will be created with the value
3270 # undef. This is intentional.
3271
3272 $config{perlenv}->{$name} = $ENV{$name}
3273 if ! exists $config{perlenv}->{$name};
3274 }
3275 return $config{perlenv}->{$name};
3276}
3277
3278# Configuration printer ##############################################
3279
3280sub print_table_entry
3281{
3282 local $now_printing = shift;
3283 my %target = resolve_config($now_printing);
3284 my $type = shift;
3285
3286 # Don't print the templates
3287 return if $target{template};
3288
3289 my @sequence = (
3290 "sys_id",
3291 "cpp",
3292 "cppflags",
3293 "defines",
3294 "includes",
3295 "cc",
3296 "cflags",
3297 "ld",
3298 "lflags",
3299 "loutflag",
3300 "ex_libs",
3301 "bn_ops",
3302 "enable",
3303 "disable",
3304 "poly1035_asm_src",
3305 "thread_scheme",
3306 "perlasm_scheme",
3307 "dso_scheme",
3308 "shared_target",
3309 "shared_cflag",
3310 "shared_defines",
3311 "shared_ldflag",
3312 "shared_rcflag",
3313 "shared_extension",
3314 "dso_extension",
3315 "obj_extension",
3316 "exe_extension",
3317 "ranlib",
3318 "ar",
3319 "arflags",
3320 "aroutflag",
3321 "rc",
3322 "rcflags",
3323 "rcoutflag",
3324 "mt",
3325 "mtflags",
3326 "mtinflag",
3327 "mtoutflag",
3328 "multilib",
3329 "build_scheme",
3330 );
3331
3332 if ($type eq "TABLE") {
3333 print "\n";
3334 print "*** $now_printing\n";
3335 foreach (@sequence) {
3336 if (ref($target{$_}) eq "ARRAY") {
3337 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3338 } else {
3339 printf "\$%-12s = %s\n", $_, $target{$_};
3340 }
3341 }
3342 } elsif ($type eq "HASH") {
3343 my $largest =
3344 length((sort { length($a) <=> length($b) } @sequence)[-1]);
3345 print " '$now_printing' => {\n";
3346 foreach (@sequence) {
3347 if ($target{$_}) {
3348 if (ref($target{$_}) eq "ARRAY") {
3349 print " '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3350 } else {
3351 print " '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3352 }
3353 }
3354 }
3355 print " },\n";
3356 }
3357}
3358
3359# Utility routines ###################################################
3360
3361# On VMS, if the given file is a logical name, File::Spec::Functions
3362# will consider it an absolute path. There are cases when we want a
3363# purely syntactic check without checking the environment.
3364sub isabsolute {
3365 my $file = shift;
3366
3367 # On non-platforms, we just use file_name_is_absolute().
3368 return file_name_is_absolute($file) unless $^O eq "VMS";
3369
3370 # If the file spec includes a device or a directory spec,
3371 # file_name_is_absolute() is perfectly safe.
3372 return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3373
3374 # Here, we know the given file spec isn't absolute
3375 return 0;
3376}
3377
3378# Makes a directory absolute and cleans out /../ in paths like foo/../bar
3379# On some platforms, this uses rel2abs(), while on others, realpath() is used.
3380# realpath() requires that at least all path components except the last is an
3381# existing directory. On VMS, the last component of the directory spec must
3382# exist.
3383sub absolutedir {
3384 my $dir = shift;
3385
3386 # realpath() is quite buggy on VMS. It uses LIB$FID_TO_NAME, which
3387 # will return the volume name for the device, no matter what. Also,
3388 # it will return an incorrect directory spec if the argument is a
3389 # directory that doesn't exist.
3390 if ($^O eq "VMS") {
3391 return rel2abs($dir);
3392 }
3393
3394 # We use realpath() on Unix, since no other will properly clean out
3395 # a directory spec.
3396 use Cwd qw/realpath/;
3397
3398 return realpath($dir);
3399}
3400
3401# Check if all paths are one and the same, using stat. They must both exist
3402# We need this for the cases when File::Spec doesn't detect case insensitivity
3403# (File::Spec::Unix assumes case sensitivity)
3404sub samedir {
3405 die "samedir expects two arguments\n" unless scalar @_ == 2;
3406
3407 my @stat0 = stat($_[0]); # First argument
3408 my @stat1 = stat($_[1]); # Second argument
3409
3410 die "Couldn't stat $_[0]" unless @stat0;
3411 die "Couldn't stat $_[1]" unless @stat1;
3412
3413 # Compare device number
3414 return 0 unless ($stat0[0] == $stat1[0]);
3415 # Compare "inode". The perl manual recommends comparing as
3416 # string rather than as number.
3417 return 0 unless ($stat0[1] eq $stat1[1]);
3418
3419 return 1; # All the same
3420}
3421
3422sub quotify {
3423 my %processors = (
3424 perl => sub { my $x = shift;
3425 $x =~ s/([\\\$\@"])/\\$1/g;
3426 return '"'.$x.'"'; },
3427 maybeshell => sub { my $x = shift;
3428 (my $y = $x) =~ s/([\\\"])/\\$1/g;
3429 if ($x ne $y || $x =~ m|\s|) {
3430 return '"'.$y.'"';
3431 } else {
3432 return $x;
3433 }
3434 },
3435 );
3436 my $for = shift;
3437 my $processor =
3438 defined($processors{$for}) ? $processors{$for} : sub { shift; };
3439
3440 return map { $processor->($_); } @_;
3441}
3442
3443# collect_from_file($filename, $line_concat_cond_re, $line_concat)
3444# $filename is a file name to read from
3445# $line_concat_cond_re is a regexp detecting a line continuation ending
3446# $line_concat is a CODEref that takes care of concatenating two lines
3447sub collect_from_file {
3448 my $filename = shift;
3449 my $line_concat_cond_re = shift;
3450 my $line_concat = shift;
3451
3452 open my $fh, $filename || die "unable to read $filename: $!\n";
3453 return sub {
3454 my $saved_line = "";
3455 $_ = "";
3456 while (<$fh>) {
3457 s|\R$||;
3458 if (defined $line_concat) {
3459 $_ = $line_concat->($saved_line, $_);
3460 $saved_line = "";
3461 }
3462 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3463 $saved_line = $_;
3464 next;
3465 }
3466 return $_;
3467 }
3468 die "$filename ending with continuation line\n" if $_;
3469 close $fh;
3470 return undef;
3471 }
3472}
3473
3474# collect_from_array($array, $line_concat_cond_re, $line_concat)
3475# $array is an ARRAYref of lines
3476# $line_concat_cond_re is a regexp detecting a line continuation ending
3477# $line_concat is a CODEref that takes care of concatenating two lines
3478sub collect_from_array {
3479 my $array = shift;
3480 my $line_concat_cond_re = shift;
3481 my $line_concat = shift;
3482 my @array = (@$array);
3483
3484 return sub {
3485 my $saved_line = "";
3486 $_ = "";
3487 while (defined($_ = shift @array)) {
3488 s|\R$||;
3489 if (defined $line_concat) {
3490 $_ = $line_concat->($saved_line, $_);
3491 $saved_line = "";
3492 }
3493 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3494 $saved_line = $_;
3495 next;
3496 }
3497 return $_;
3498 }
3499 die "input text ending with continuation line\n" if $_;
3500 return undef;
3501 }
3502}
3503
3504# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3505# $lineiterator is a CODEref that delivers one line at a time.
3506# All following arguments are regex/CODEref pairs, where the regexp detects a
3507# line and the CODEref does something with the result of the regexp.
3508sub collect_information {
3509 my $lineiterator = shift;
3510 my %collectors = @_;
3511
3512 while(defined($_ = $lineiterator->())) {
3513 s|\R$||;
3514 my $found = 0;
3515 if ($collectors{"BEFORE"}) {
3516 $collectors{"BEFORE"}->($_);
3517 }
3518 foreach my $re (keys %collectors) {
3519 if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3520 $collectors{$re}->($lineiterator);
3521 $found = 1;
3522 };
3523 }
3524 if ($collectors{"OTHERWISE"}) {
3525 $collectors{"OTHERWISE"}->($lineiterator, $_)
3526 unless $found || !defined $collectors{"OTHERWISE"};
3527 }
3528 if ($collectors{"AFTER"}) {
3529 $collectors{"AFTER"}->($_);
3530 }
3531 }
3532}
3533
3534# tokenize($line)
3535# tokenize($line,$separator)
3536# $line is a line of text to split up into tokens
3537# $separator [optional] is a regular expression that separates the tokens,
3538# the default being spaces. Do not use quotes of any kind as separators,
3539# that will give undefined results.
3540# Returns a list of tokens.
3541#
3542# Tokens are divided by separator (spaces by default). If the tokens include
3543# the separators, they have to be quoted with single or double quotes.
3544# Double quotes inside a double quoted token must be escaped. Escaping is done
3545# with backslash.
3546# Basically, the same quoting rules apply for " and ' as in any
3547# Unix shell.
3548sub tokenize {
3549 my $line = my $debug_line = shift;
3550 my $separator = shift // qr|\s+|;
3551 my @result = ();
3552
3553 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3554 print STDERR "DEBUG[tokenize]: \$separator = $separator\n";
3555 }
3556
3557 while ($line =~ s|^${separator}||, $line ne "") {
3558 my $token = "";
3559 again:
3560 $line =~ m/^(.*?)(${separator}|"|'|$)/;
3561 $token .= $1;
3562 $line = $2.$';
3563
3564 if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3565 $token .= $1;
3566 $line = $';
3567 goto again;
3568 } elsif ($line =~ m/^'([^']*)'/) {
3569 $token .= $1;
3570 $line = $';
3571 goto again;
3572 }
3573 push @result, $token;
3574 }
3575
3576 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3577 print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3578 print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3579 }
3580 return @result;
3581}
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