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source: vbox/trunk/src/libs/openssl-3.1.4/Configure@ 103630

Last change on this file since 103630 was 102863, checked in by vboxsync, 11 months ago

openssl-3.1.4: Applied and adjusted our OpenSSL changes to 3.1.3. bugref:10577

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