VirtualBox

source: vbox/trunk/src/libs/openssl-3.0.9/Configure@ 100906

Last change on this file since 100906 was 100487, checked in by vboxsync, 17 months ago

openssl-3.0.9: Applied and adjusted our OpenSSL changes we made to 3.0.7. bugref:10484

  • Property svn:executable set to *
File size: 132.4 KB
Line 
1#! /usr/bin/env perl
2# -*- mode: perl; -*-
3# Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.
4#
5# Licensed under the Apache License 2.0 (the "License"). You may not use
6# this file except in compliance with the License. You can obtain a copy
7# in the file LICENSE in the source distribution or at
8# https://www.openssl.org/source/license.html
9
10## Configure -- OpenSSL source tree configuration script
11
12use 5.10.0;
13use strict;
14use Config;
15use FindBin;
16use lib "$FindBin::Bin/util/perl";
17use File::Basename;
18use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs splitdir/;
19use File::Path qw/mkpath/;
20use OpenSSL::fallback "$FindBin::Bin/external/perl/MODULES.txt";
21use OpenSSL::Glob;
22use OpenSSL::Template;
23use OpenSSL::config;
24
25# see INSTALL.md for instructions.
26
27my $orig_death_handler = $SIG{__DIE__};
28$SIG{__DIE__} = \&death_handler;
29
30my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
31
32my $banner = <<"EOF";
33
34**********************************************************************
35*** ***
36*** OpenSSL has been successfully configured ***
37*** ***
38*** If you encounter a problem while building, please open an ***
39*** issue on GitHub <https://github.com/openssl/openssl/issues> ***
40*** and include the output from the following command: ***
41*** ***
42*** perl configdata.pm --dump ***
43*** ***
44*** (If you are new to OpenSSL, you might want to consult the ***
45*** 'Troubleshooting' section in the INSTALL.md file first) ***
46*** ***
47**********************************************************************
48EOF
49
50# Options:
51#
52# --config add the given configuration file, which will be read after
53# any "Configurations*" files that are found in the same
54# directory as this script.
55# --prefix prefix for the OpenSSL installation, which includes the
56# directories bin, lib, include, share/man, share/doc/openssl
57# This becomes the value of INSTALLTOP in Makefile
58# (Default: /usr/local)
59# --openssldir OpenSSL data area, such as openssl.cnf, certificates and keys.
60# If it's a relative directory, it will be added on the directory
61# given with --prefix.
62# This becomes the value of OPENSSLDIR in Makefile and in C.
63# (Default: PREFIX/ssl)
64# --banner=".." Output specified text instead of default completion banner
65#
66# -w Don't wait after showing a Configure warning
67#
68# --cross-compile-prefix Add specified prefix to binutils components.
69#
70# --api One of 0.9.8, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, or 3.0
71# Define the public APIs as they were for that version
72# including patch releases. If 'no-deprecated' is also
73# given, do not compile support for interfaces deprecated
74# up to and including the specified OpenSSL version.
75#
76# no-hw-xxx do not compile support for specific crypto hardware.
77# Generic OpenSSL-style methods relating to this support
78# are always compiled but return NULL if the hardware
79# support isn't compiled.
80# no-hw do not compile support for any crypto hardware.
81# [no-]threads [don't] try to create a library that is suitable for
82# multithreaded applications (default is "threads" if we
83# know how to do it)
84# [no-]shared [don't] try to create shared libraries when supported.
85# [no-]pic [don't] try to build position independent code when supported.
86# If disabled, it also disables shared and dynamic-engine.
87# no-asm do not use assembler
88# no-egd do not compile support for the entropy-gathering daemon APIs
89# [no-]zlib [don't] compile support for zlib compression.
90# zlib-dynamic Like "zlib", but the zlib library is expected to be a shared
91# library and will be loaded in run-time by the OpenSSL library.
92# sctp include SCTP support
93# no-uplink Don't build support for UPLINK interface.
94# enable-weak-ssl-ciphers
95# Enable weak ciphers that are disabled by default.
96# 386 generate 80386 code in assembly modules
97# no-sse2 disables IA-32 SSE2 code in assembly modules, the above
98# mentioned '386' option implies this one
99# no-<cipher> build without specified algorithm (dsa, idea, rc5, ...)
100# -<xxx> +<xxx> All options which are unknown to the 'Configure' script are
101# /<xxx> passed through to the compiler. Unix-style options beginning
102# with a '-' or '+' are recognized, as well as Windows-style
103# options beginning with a '/'. If the option contains arguments
104# separated by spaces, then the URL-style notation %20 can be
105# used for the space character in order to avoid having to quote
106# the option. For example, -opt%20arg gets expanded to -opt arg.
107# In fact, any ASCII character can be encoded as %xx using its
108# hexadecimal encoding.
109# -static while -static is also a pass-through compiler option (and
110# as such is limited to environments where it's actually
111# meaningful), it triggers a number configuration options,
112# namely no-pic, no-shared and no-threads. It is
113# argued that the only reason to produce statically linked
114# binaries (and in context it means executables linked with
115# -static flag, and not just executables linked with static
116# libcrypto.a) is to eliminate dependency on specific run-time,
117# a.k.a. libc version. The mentioned config options are meant
118# to achieve just that. Unfortunately on Linux it's impossible
119# to eliminate the dependency completely for openssl executable
120# because of getaddrinfo and gethostbyname calls, which can
121# invoke dynamically loadable library facility anyway to meet
122# the lookup requests. For this reason on Linux statically
123# linked openssl executable has rather debugging value than
124# production quality.
125#
126# BN_LLONG use the type 'long long' in crypto/bn/bn.h
127# RC4_CHAR use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
128# Following are set automatically by this script
129#
130# MD5_ASM use some extra md5 assembler,
131# SHA1_ASM use some extra sha1 assembler, must define L_ENDIAN for x86
132# RMD160_ASM use some extra ripemd160 assembler,
133# SHA256_ASM sha256_block is implemented in assembler
134# SHA512_ASM sha512_block is implemented in assembler
135# AES_ASM AES_[en|de]crypt is implemented in assembler
136
137# Minimum warning options... any contributions to OpenSSL should at least
138# get past these. Note that we only use these with C compilers, not with
139# C++ compilers.
140
141# -DPEDANTIC complements -pedantic and is meant to mask code that
142# is not strictly standard-compliant and/or implementation-specific,
143# e.g. inline assembly, disregards to alignment requirements, such
144# that -pedantic would complain about. Incidentally -DPEDANTIC has
145# to be used even in sanitized builds, because sanitizer too is
146# supposed to and does take notice of non-standard behaviour. Then
147# -pedantic with pre-C9x compiler would also complain about 'long
148# long' not being supported. As 64-bit algorithms are common now,
149# it grew impossible to resolve this without sizeable additional
150# code, so we just tell compiler to be pedantic about everything
151# but 'long long' type.
152
153my @gcc_devteam_warn = qw(
154 -DPEDANTIC -pedantic -Wno-long-long -DUNUSEDRESULT_DEBUG
155 -Wall
156 -Wmissing-declarations
157 -Wextra
158 -Wno-unused-parameter
159 -Wno-missing-field-initializers
160 -Wswitch
161 -Wsign-compare
162 -Wshadow
163 -Wformat
164 -Wtype-limits
165 -Wundef
166 -Werror
167 -Wmissing-prototypes
168 -Wstrict-prototypes
169);
170
171# These are used in addition to $gcc_devteam_warn when the compiler is clang.
172# TODO(openssl-team): fix problems and investigate if (at least) the
173# following warnings can also be enabled:
174# -Wcast-align
175# -Wunreachable-code -- no, too ugly/compiler-specific
176# -Wlanguage-extension-token -- no, we use asm()
177# -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
178# -Wextended-offsetof -- no, needed in CMS ASN1 code
179my @clang_devteam_warn = qw(
180 -Wno-unknown-warning-option
181 -Wswitch-default
182 -Wno-parentheses-equality
183 -Wno-language-extension-token
184 -Wno-extended-offsetof
185 -Wconditional-uninitialized
186 -Wincompatible-pointer-types-discards-qualifiers
187 -Wmissing-variable-declarations
188);
189
190my @cl_devteam_warn = qw(
191 /WX
192);
193
194my $strict_warnings = 0;
195
196# As for $BSDthreads. Idea is to maintain "collective" set of flags,
197# which would cover all BSD flavors. -pthread applies to them all,
198# but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
199# -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
200# which has to be accompanied by explicit -D_THREAD_SAFE and
201# sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
202# seems to be sufficient?
203our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
204
205#
206# API compatibility name to version number mapping.
207#
208my $apitable = {
209 # This table expresses when API additions or changes can occur.
210 # The numbering used changes from 3.0 and on because we updated
211 # (solidified) our version numbering scheme at that point.
212
213 # From 3.0 and on, we internalise the given version number in decimal
214 # as MAJOR * 10000 + MINOR * 100 + 0
215 "3.0.0" => 30000,
216 "3.0" => 30000,
217
218 # Note that before 3.0, we didn't have the same version number scheme.
219 # Still, the numbering we use here covers what we need.
220 "1.1.1" => 10101,
221 "1.1.0" => 10100,
222 "1.0.2" => 10002,
223 "1.0.1" => 10001,
224 "1.0.0" => 10000,
225 "0.9.8" => 908,
226};
227
228# For OpenSSL::config::get_platform
229my %guess_opts = ();
230
231my $dryrun = 0;
232
233our %table = ();
234our %config = ();
235our %withargs = ();
236our $now_printing; # set to current entry's name in print_table_entry
237 # (todo: right thing would be to encapsulate name
238 # into %target [class] and make print_table_entry
239 # a method)
240
241# Forward declarations ###############################################
242
243# read_config(filename)
244#
245# Reads a configuration file and populates %table with the contents
246# (which the configuration file places in %targets).
247sub read_config;
248
249# resolve_config(target)
250#
251# Resolves all the late evaluations, inheritances and so on for the
252# chosen target and any target it inherits from.
253sub resolve_config;
254
255
256# Information collection #############################################
257
258# Unified build supports separate build dir
259my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
260my $blddir = catdir(absolutedir(".")); # catdir ensures local syntax
261
262# File::Spec::Unix doesn't detect case insensitivity, so we make sure to
263# check if the source and build directory are really the same, and make
264# them so. This avoids all kinds of confusion later on.
265# We must check @File::Spec::ISA rather than using File::Spec->isa() to
266# know if File::Spec ended up loading File::Spec::Unix.
267$srcdir = $blddir
268 if (grep(/::Unix$/, @File::Spec::ISA)
269 && samedir($srcdir, $blddir));
270
271my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
272
273my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
274
275$config{sourcedir} = abs2rel($srcdir, $blddir);
276$config{builddir} = abs2rel($blddir, $blddir);
277# echo -n 'holy hand grenade of antioch' | openssl sha256
278$config{FIPSKEY} =
279 'f4556650ac31d35461610bac4ed81b1a181b2d8a43ea2854cbae22ca74560813';
280
281# Collect reconfiguration information if needed
282my @argvcopy=@ARGV;
283
284if (grep /^reconf(igure)?$/, @argvcopy) {
285 die "reconfiguring with other arguments present isn't supported"
286 if scalar @argvcopy > 1;
287 if (-f "./configdata.pm") {
288 my $file = "./configdata.pm";
289 unless (my $return = do $file) {
290 die "couldn't parse $file: $@" if $@;
291 die "couldn't do $file: $!" unless defined $return;
292 die "couldn't run $file" unless $return;
293 }
294
295 @argvcopy = defined($configdata::config{perlargv}) ?
296 @{$configdata::config{perlargv}} : ();
297 die "Incorrect data to reconfigure, please do a normal configuration\n"
298 if (grep(/^reconf/,@argvcopy));
299 $config{perlenv} = $configdata::config{perlenv} // {};
300 } else {
301 die "Insufficient data to reconfigure, please do a normal configuration\n";
302 }
303}
304
305$config{perlargv} = [ @argvcopy ];
306
307# Historical: if known directories in crypto/ have been removed, it means
308# that those sub-systems are disabled.
309# (the other option would be to removed them from the SUBDIRS statement in
310# crypto/build.info)
311# We reverse the input list for cosmetic purely reasons, to compensate that
312# 'unshift' adds at the front of the list (i.e. in reverse input order).
313foreach ( reverse sort( 'aes', 'aria', 'bf', 'camellia', 'cast', 'des', 'dh',
314 'dsa', 'ec', 'hmac', 'idea', 'md2', 'md5', 'mdc2',
315 'rc2', 'rc4', 'rc5', 'ripemd', 'seed', 'sha',
316 'sm2', 'sm3', 'sm4') ) {
317 unshift @argvcopy, "no-$_" if ! -d catdir($srcdir, 'crypto', $_);
318}
319
320# Collect version numbers
321my %version = ();
322
323collect_information(
324 collect_from_file(catfile($srcdir,'VERSION.dat')),
325 qr/\s*(\w+)\s*=\s*(.*?)\s*$/ =>
326 sub {
327 # Only define it if there is a value at all
328 if ($2 ne '') {
329 my $k = $1;
330 my $v = $2;
331 # Some values are quoted. Trim the quotes
332 $v = $1 if $v =~ /^"(.*)"$/;
333 $version{uc $k} = $v;
334 }
335 },
336 "OTHERWISE" =>
337 sub { die "Something wrong with this line:\n$_\nin $srcdir/VERSION.dat" },
338 );
339
340$config{major} = $version{MAJOR} // 'unknown';
341$config{minor} = $version{MINOR} // 'unknown';
342$config{patch} = $version{PATCH} // 'unknown';
343$config{prerelease} =
344 defined $version{PRE_RELEASE_TAG} ? "-$version{PRE_RELEASE_TAG}" : '';
345$config{build_metadata} =
346 defined $version{BUILD_METADATA} ? "+$version{BUILD_METADATA}" : '';
347$config{shlib_version} = $version{SHLIB_VERSION} // 'unknown';
348$config{release_date} = $version{RELEASE_DATE} // 'xx XXX xxxx';
349
350$config{version} = "$config{major}.$config{minor}.$config{patch}";
351$config{full_version} = "$config{version}$config{prerelease}$config{build_metadata}";
352
353die "erroneous version information in VERSION.dat: ",
354 "$config{version}, $config{shlib_version}\n"
355 unless (defined $version{MAJOR}
356 && defined $version{MINOR}
357 && defined $version{PATCH}
358 && defined $version{SHLIB_VERSION});
359
360# Collect target configurations
361
362my $pattern = catfile(dirname($0), "Configurations", "*.conf");
363foreach (sort glob($pattern)) {
364 &read_config($_);
365}
366
367if (defined env($local_config_envname)) {
368 if ($^O eq 'VMS') {
369 # VMS environment variables are logical names,
370 # which can be used as is
371 $pattern = $local_config_envname . ':' . '*.conf';
372 } else {
373 $pattern = catfile(env($local_config_envname), '*.conf');
374 }
375
376 foreach (sort glob($pattern)) {
377 &read_config($_);
378 }
379}
380
381# Save away perl command information
382$config{perl_cmd} = $^X;
383$config{perl_version} = $Config{version};
384$config{perl_archname} = $Config{archname};
385
386$config{prefix}="";
387$config{openssldir}="";
388$config{processor}="";
389$config{libdir}="";
390my $auto_threads=1; # enable threads automatically? true by default
391my $default_ranlib;
392
393# Known TLS and DTLS protocols
394my @tls = qw(ssl3 tls1 tls1_1 tls1_2 tls1_3);
395my @dtls = qw(dtls1 dtls1_2);
396
397# Explicitly known options that are possible to disable. They can
398# be regexps, and will be used like this: /^no-${option}$/
399# For developers: keep it sorted alphabetically
400
401my @disablables = (
402 "acvp-tests",
403 "afalgeng",
404 "aria",
405 "asan",
406 "asm",
407 "async",
408 "autoalginit",
409 "autoerrinit",
410 "autoload-config",
411 "bf",
412 "blake2",
413 "buildtest-c++",
414 "bulk",
415 "cached-fetch",
416 "camellia",
417 "capieng",
418 "cast",
419 "chacha",
420 "cmac",
421 "cmp",
422 "cms",
423 "comp",
424 "crypto-mdebug",
425 "ct",
426 "deprecated",
427 "des",
428 "devcryptoeng",
429 "dgram",
430 "dh",
431 "dsa",
432 "dso",
433 "dtls",
434 "dynamic-engine",
435 "ec",
436 "ec2m",
437 "ec_nistp_64_gcc_128",
438 "ecdh",
439 "ecdsa",
440 "egd",
441 "engine",
442 "err",
443 "external-tests",
444 "filenames",
445 "fips",
446 "fips-securitychecks",
447 "fuzz-afl",
448 "fuzz-libfuzzer",
449 "gost",
450 "idea",
451 "ktls",
452 "legacy",
453 "loadereng",
454 "makedepend",
455 "md2",
456 "md4",
457 "mdc2",
458 "module",
459 "msan",
460 "multiblock",
461 "nextprotoneg",
462 "ocb",
463 "ocsp",
464 "padlockeng",
465 "pic",
466 "pinshared",
467 "poly1305",
468 "posix-io",
469 "psk",
470 "rc2",
471 "rc4",
472 "rc5",
473 "rdrand",
474 "rfc3779",
475 "rmd160",
476 "scrypt",
477 "sctp",
478 "secure-memory",
479 "seed",
480 "shared",
481 "siphash",
482 "siv",
483 "sm2",
484 "sm3",
485 "sm4",
486 "sock",
487 "srp",
488 "srtp",
489 "sse2",
490 "ssl",
491 "ssl-trace",
492 "static-engine",
493 "stdio",
494 "tests",
495 "threads",
496 "tls",
497 "trace",
498 "ts",
499 "ubsan",
500 "ui-console",
501 "unit-test",
502 "uplink",
503 "weak-ssl-ciphers",
504 "whirlpool",
505 "zlib",
506 "zlib-dynamic",
507 );
508foreach my $proto ((@tls, @dtls))
509 {
510 push(@disablables, $proto);
511 push(@disablables, "$proto-method") unless $proto eq "tls1_3";
512 }
513
514# Internal disablables, for aliasing purposes. They serve no special
515# purpose here, but allow scripts to get to know them through configdata.pm,
516# where these are merged with @disablables.
517# The actual aliasing mechanism is done via %disable_cascades
518my @disablables_int = qw(
519 crmf
520 );
521
522my %deprecated_disablables = (
523 "ssl2" => undef,
524 "buf-freelists" => undef,
525 "crypto-mdebug-backtrace" => undef,
526 "hw" => "hw", # causes cascade, but no macro
527 "hw-padlock" => "padlockeng",
528 "ripemd" => "rmd160",
529 "ui" => "ui-console",
530 "heartbeats" => undef,
531 );
532
533# All of the following are disabled by default:
534
535our %disabled = ( # "what" => "comment"
536 "fips" => "default",
537 "asan" => "default",
538 "buildtest-c++" => "default",
539 "crypto-mdebug" => "default",
540 "crypto-mdebug-backtrace" => "default",
541 "devcryptoeng" => "default",
542 "ec_nistp_64_gcc_128" => "default",
543 "egd" => "default",
544 "external-tests" => "default",
545 "fuzz-afl" => "default",
546 "fuzz-libfuzzer" => "default",
547 "ktls" => "default",
548 "md2" => "default",
549 "msan" => "default",
550 "rc5" => "default",
551 "sctp" => "default",
552 "ssl3" => "default",
553 "ssl3-method" => "default",
554 "trace" => "default",
555 "ubsan" => "default",
556 "unit-test" => "default",
557 "weak-ssl-ciphers" => "default",
558 "zlib" => "default",
559 "zlib-dynamic" => "default",
560 );
561
562# Note: => pair form used for aesthetics, not to truly make a hash table
563my @disable_cascades = (
564 # "what" => [ "cascade", ... ]
565 "bulk" => [ "shared", "dso",
566 "aria", "async", "autoload-config",
567 "blake2", "bf", "camellia", "cast", "chacha",
568 "cmac", "cms", "cmp", "comp", "ct",
569 "des", "dgram", "dh", "dsa",
570 "ec", "engine",
571 "filenames",
572 "idea", "ktls",
573 "md4", "multiblock", "nextprotoneg",
574 "ocsp", "ocb", "poly1305", "psk",
575 "rc2", "rc4", "rmd160",
576 "seed", "siphash", "siv",
577 "sm3", "sm4", "srp",
578 "srtp", "ssl3-method", "ssl-trace",
579 "ts", "ui-console", "whirlpool",
580 "fips-securitychecks" ],
581 sub { $config{processor} eq "386" }
582 => [ "sse2" ],
583 "ssl" => [ "ssl3" ],
584 "ssl3-method" => [ "ssl3" ],
585 "zlib" => [ "zlib-dynamic" ],
586 "des" => [ "mdc2" ],
587 "ec" => [ "ec2m", "ecdsa", "ecdh", "sm2", "gost" ],
588 "dgram" => [ "dtls", "sctp" ],
589 "sock" => [ "dgram" ],
590 "dtls" => [ @dtls ],
591 sub { 0 == scalar grep { !$disabled{$_} } @dtls }
592 => [ "dtls" ],
593
594 "tls" => [ @tls ],
595 sub { 0 == scalar grep { !$disabled{$_} } @tls }
596 => [ "tls" ],
597
598 "crypto-mdebug" => [ "crypto-mdebug-backtrace" ],
599
600 # If no modules, then no dynamic engines either
601 "module" => [ "dynamic-engine" ],
602
603 # Without shared libraries, dynamic engines aren't possible.
604 # This is due to them having to link with libcrypto and register features
605 # using the ENGINE functionality, and since that relies on global tables,
606 # those *have* to be exacty the same as the ones accessed from the app,
607 # which cannot be guaranteed if shared libraries aren't present.
608 # (note that even with shared libraries, both the app and dynamic engines
609 # must be linked with the same library)
610 "shared" => [ "dynamic-engine", "uplink" ],
611 "dso" => [ "dynamic-engine", "module" ],
612 # Other modules don't necessarily have to link with libcrypto, so shared
613 # libraries do not have to be a condition to produce those.
614
615 # Without position independent code, there can be no shared libraries
616 # or modules.
617 "pic" => [ "shared", "module" ],
618
619 "module" => [ "fips", "dso" ],
620
621 "engine" => [ "dynamic-engine", grep(/eng$/, @disablables) ],
622 "dynamic-engine" => [ "loadereng" ],
623 "hw" => [ "padlockeng" ],
624
625 # no-autoalginit is only useful when building non-shared
626 "autoalginit" => [ "shared", "apps", "fips" ],
627
628 "stdio" => [ "apps", "capieng", "egd" ],
629 "apps" => [ "tests" ],
630 "tests" => [ "external-tests" ],
631 "comp" => [ "zlib" ],
632 "sm3" => [ "sm2" ],
633 sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
634
635 sub { !$disabled{"msan"} } => [ "asm" ],
636
637 "cmac" => [ "siv" ],
638 "legacy" => [ "md2" ],
639
640 "cmp" => [ "crmf" ],
641
642 "fips" => [ "fips-securitychecks", "acvp-tests" ],
643
644 "deprecated-3.0" => [ "engine", "srp" ]
645 );
646
647# Avoid protocol support holes. Also disable all versions below N, if version
648# N is disabled while N+1 is enabled.
649#
650my @list = (reverse @tls);
651while ((my $first, my $second) = (shift @list, shift @list)) {
652 last unless @list;
653 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
654 => [ @list ] );
655 unshift @list, $second;
656}
657my @list = (reverse @dtls);
658while ((my $first, my $second) = (shift @list, shift @list)) {
659 last unless @list;
660 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
661 => [ @list ] );
662 unshift @list, $second;
663}
664
665# Explicit "no-..." options will be collected in %disabled along with the defaults.
666# To remove something from %disabled, use "enable-foo".
667# For symmetry, "disable-foo" is a synonym for "no-foo".
668
669# For the "make variables" CPPINCLUDES and CPPDEFINES, we support lists with
670# platform specific list separators. Users from those platforms should
671# recognise those separators from how you set up the PATH to find executables.
672# The default is the Unix like separator, :, but as an exception, we also
673# support the space as separator.
674my $list_separator_re =
675 { VMS => qr/(?<!\^),/,
676 MSWin32 => qr/(?<!\\);/ } -> {$^O} // qr/(?<!\\)[:\s]/;
677# All the "make variables" we support
678# Some get pre-populated for the sake of backward compatibility
679# (we supported those before the change to "make variable" support.
680my %user = (
681 AR => env('AR'),
682 ARFLAGS => [],
683 AS => undef,
684 ASFLAGS => [],
685 CC => env('CC'),
686 CFLAGS => [ env('CFLAGS') || () ],
687 CXX => env('CXX'),
688 CXXFLAGS => [ env('CXXFLAGS') || () ],
689 CPP => undef,
690 CPPFLAGS => [ env('CPPFLAGS') || () ], # -D, -I, -Wp,
691 CPPDEFINES => [], # Alternative for -D
692 CPPINCLUDES => [], # Alternative for -I
693 CROSS_COMPILE => env('CROSS_COMPILE'),
694 HASHBANGPERL=> env('HASHBANGPERL') || env('PERL'),
695 LD => undef,
696 LDFLAGS => [ env('LDFLAGS') || () ], # -L, -Wl,
697 LDLIBS => [ env('LDLIBS') || () ], # -l
698 MT => undef,
699 MTFLAGS => [],
700 PERL => env('PERL') || ($^O ne "VMS" ? $^X : "perl"),
701 RANLIB => env('RANLIB'),
702 RC => env('RC') || env('WINDRES'),
703 RCFLAGS => [ env('RCFLAGS') || () ],
704 RM => undef,
705 );
706# Info about what "make variables" may be prefixed with the cross compiler
707# prefix. This should NEVER mention any such variable with a list for value.
708my @user_crossable = qw ( AR AS CC CXX CPP LD MT RANLIB RC );
709# The same but for flags given as Configure options. These are *additional*
710# input, as opposed to the VAR=string option that override the corresponding
711# config target attributes
712my %useradd = (
713 CPPDEFINES => [],
714 CPPINCLUDES => [],
715 CPPFLAGS => [],
716 CFLAGS => [],
717 CXXFLAGS => [],
718 LDFLAGS => [],
719 LDLIBS => [],
720 RCFLAGS => [],
721 );
722
723my %user_synonyms = (
724 HASHBANGPERL=> 'PERL',
725 RC => 'WINDRES',
726 );
727
728# Some target attributes have been renamed, this is the translation table
729my %target_attr_translate =(
730 ar => 'AR',
731 as => 'AS',
732 cc => 'CC',
733 cxx => 'CXX',
734 cpp => 'CPP',
735 hashbangperl => 'HASHBANGPERL',
736 ld => 'LD',
737 mt => 'MT',
738 ranlib => 'RANLIB',
739 rc => 'RC',
740 rm => 'RM',
741 );
742
743# Initialisers coming from 'config' scripts
744$config{defines} = [ split(/$list_separator_re/, env('__CNF_CPPDEFINES')) ];
745$config{includes} = [ split(/$list_separator_re/, env('__CNF_CPPINCLUDES')) ];
746$config{cppflags} = [ env('__CNF_CPPFLAGS') || () ];
747$config{cflags} = [ env('__CNF_CFLAGS') || () ];
748$config{cxxflags} = [ env('__CNF_CXXFLAGS') || () ];
749$config{lflags} = [ env('__CNF_LDFLAGS') || () ];
750$config{ex_libs} = [ env('__CNF_LDLIBS') || () ];
751
752$config{openssl_api_defines}=[];
753$config{openssl_sys_defines}=[];
754$config{openssl_feature_defines}=[];
755$config{options}="";
756$config{build_type} = "release";
757my $target="";
758
759my %cmdvars = (); # Stores FOO='blah' type arguments
760my %unsupported_options = ();
761my %deprecated_options = ();
762# If you change this, update apps/version.c
763my @known_seed_sources = qw(getrandom devrandom os egd none rdcpu librandom);
764my @seed_sources = ();
765while (@argvcopy)
766 {
767 $_ = shift @argvcopy;
768
769 # Support env variable assignments among the options
770 if (m|^(\w+)=(.+)?$|)
771 {
772 $cmdvars{$1} = $2;
773 # Every time a variable is given as a configuration argument,
774 # it acts as a reset if the variable.
775 if (exists $user{$1})
776 {
777 $user{$1} = ref $user{$1} eq "ARRAY" ? [] : undef;
778 }
779 #if (exists $useradd{$1})
780 # {
781 # $useradd{$1} = [];
782 # }
783 next;
784 }
785
786 # VMS is a case insensitive environment, and depending on settings
787 # out of our control, we may receive options uppercased. Let's
788 # downcase at least the part before any equal sign.
789 if ($^O eq "VMS")
790 {
791 s/^([^=]*)/lc($1)/e;
792 }
793
794 # some people just can't read the instructions, clang people have to...
795 s/^-no-(?!integrated-as)/no-/;
796
797 # rewrite some options in "enable-..." form
798 s /^-?-?shared$/enable-shared/;
799 s /^sctp$/enable-sctp/;
800 s /^threads$/enable-threads/;
801 s /^zlib$/enable-zlib/;
802 s /^zlib-dynamic$/enable-zlib-dynamic/;
803 s /^fips$/enable-fips/;
804
805 if (/^(no|disable|enable)-(.+)$/)
806 {
807 my $word = $2;
808 if ($word !~ m|hw(?:-.+)| # special treatment for hw regexp opt
809 && !exists $deprecated_disablables{$word}
810 && !grep { $word eq $_ } @disablables)
811 {
812 $unsupported_options{$_} = 1;
813 next;
814 }
815 }
816 if (/^no-(.+)$/ || /^disable-(.+)$/)
817 {
818 foreach my $proto ((@tls, @dtls))
819 {
820 if ($1 eq "$proto-method")
821 {
822 $disabled{"$proto"} = "option($proto-method)";
823 last;
824 }
825 }
826 if ($1 eq "dtls")
827 {
828 foreach my $proto (@dtls)
829 {
830 $disabled{$proto} = "option(dtls)";
831 }
832 $disabled{"dtls"} = "option(dtls)";
833 }
834 elsif ($1 eq "ssl")
835 {
836 # Last one of its kind
837 $disabled{"ssl3"} = "option(ssl)";
838 }
839 elsif ($1 eq "tls")
840 {
841 # XXX: Tests will fail if all SSL/TLS
842 # protocols are disabled.
843 foreach my $proto (@tls)
844 {
845 $disabled{$proto} = "option(tls)";
846 }
847 }
848 elsif ($1 eq "static-engine")
849 {
850 delete $disabled{"dynamic-engine"};
851 }
852 elsif ($1 eq "dynamic-engine")
853 {
854 $disabled{"dynamic-engine"} = "option";
855 }
856 elsif (exists $deprecated_disablables{$1})
857 {
858 $deprecated_options{$_} = 1;
859 if (defined $deprecated_disablables{$1})
860 {
861 $disabled{$deprecated_disablables{$1}} = "option";
862 }
863 }
864 elsif ($1 =~ m|hw(?:-.+)|) # deprecate hw options in regexp form
865 {
866 $deprecated_options{$_} = 1;
867 }
868 else
869 {
870 $disabled{$1} = "option";
871 }
872 # No longer an automatic choice
873 $auto_threads = 0 if ($1 eq "threads");
874 }
875 elsif (/^enable-(.+)$/)
876 {
877 if ($1 eq "static-engine")
878 {
879 $disabled{"dynamic-engine"} = "option";
880 }
881 elsif ($1 eq "dynamic-engine")
882 {
883 delete $disabled{"dynamic-engine"};
884 }
885 elsif ($1 eq "zlib-dynamic")
886 {
887 delete $disabled{"zlib"};
888 }
889 my $algo = $1;
890 delete $disabled{$algo};
891
892 # No longer an automatic choice
893 $auto_threads = 0 if ($1 eq "threads");
894 }
895 elsif (/^-d$/) # From older 'config'
896 {
897 $config{build_type} = "debug";
898 }
899 elsif (/^-v$/) # From older 'config'
900 {
901 $guess_opts{verbose} = 1;
902 }
903 elsif (/^-w$/)
904 {
905 $guess_opts{nowait} = 1;
906 }
907 elsif (/^-t$/) # From older 'config'
908 {
909 $dryrun = 1;
910 }
911 elsif (/^--strict-warnings$/)
912 {
913 # Pretend that our strict flags is a C flag, and replace it
914 # with the proper flags later on
915 push @{$useradd{CFLAGS}}, '--ossl-strict-warnings';
916 $strict_warnings=1;
917 }
918 elsif (/^--debug$/)
919 {
920 $config{build_type} = "debug";
921 }
922 elsif (/^--release$/)
923 {
924 $config{build_type} = "release";
925 }
926 elsif (/^386$/)
927 { $config{processor}=386; }
928 elsif (/^rsaref$/)
929 {
930 # No RSAref support any more since it's not needed.
931 # The check for the option is there so scripts aren't
932 # broken
933 }
934 elsif (m|^[-+/]|)
935 {
936 if (/^--prefix=(.*)$/)
937 {
938 $config{prefix}=$1;
939 die "Directory given with --prefix MUST be absolute\n"
940 unless file_name_is_absolute($config{prefix});
941 }
942 elsif (/^--api=(.*)$/)
943 {
944 my $api = $1;
945 die "Unknown API compatibility level $api"
946 unless defined $apitable->{$api};
947 $config{api}=$apitable->{$api};
948 }
949 elsif (/^--libdir=(.*)$/)
950 {
951 $config{libdir}=$1;
952 }
953 elsif (/^--openssldir=(.*)$/)
954 {
955 $config{openssldir}=$1;
956 }
957 elsif (/^--with-zlib-lib=(.*)$/)
958 {
959 $withargs{zlib_lib}=$1;
960 }
961 elsif (/^--with-zlib-include=(.*)$/)
962 {
963 $withargs{zlib_include}=$1;
964 }
965 elsif (/^--with-fuzzer-lib=(.*)$/)
966 {
967 $withargs{fuzzer_lib}=$1;
968 }
969 elsif (/^--with-fuzzer-include=(.*)$/)
970 {
971 $withargs{fuzzer_include}=$1;
972 }
973 elsif (/^--with-rand-seed=(.*)$/)
974 {
975 foreach my $x (split(m|,|, $1))
976 {
977 die "Unknown --with-rand-seed choice $x\n"
978 if ! grep { $x eq $_ } @known_seed_sources;
979 push @seed_sources, $x;
980 }
981 }
982 elsif (/^--fips-key=(.*)$/)
983 {
984 $user{FIPSKEY}=lc($1);
985 die "Non-hex character in FIPS key\n"
986 if $user{FIPSKEY} =~ /[^a-f0-9]/;
987 die "FIPS key must have even number of characters\n"
988 if length $1 & 1;
989 die "FIPS key too long (64 bytes max)\n"
990 if length $1 > 64;
991 }
992 elsif (/^--banner=(.*)$/)
993 {
994 $banner = $1 . "\n";
995 }
996 elsif (/^--cross-compile-prefix=(.*)$/)
997 {
998 $user{CROSS_COMPILE}=$1;
999 }
1000 elsif (/^--config=(.*)$/)
1001 {
1002 read_config $1;
1003 }
1004 elsif (/^-l(.*)$/)
1005 {
1006 push @{$useradd{LDLIBS}}, $_;
1007 }
1008 elsif (/^-framework$/)
1009 {
1010 push @{$useradd{LDLIBS}}, $_, shift(@argvcopy);
1011 }
1012 elsif (/^-L(.*)$/ or /^-Wl,/)
1013 {
1014 push @{$useradd{LDFLAGS}}, $_;
1015 }
1016 elsif (/^-rpath$/ or /^-R$/)
1017 # -rpath is the OSF1 rpath flag
1018 # -R is the old Solaris rpath flag
1019 {
1020 my $rpath = shift(@argvcopy) || "";
1021 $rpath .= " " if $rpath ne "";
1022 push @{$useradd{LDFLAGS}}, $_, $rpath;
1023 }
1024 elsif (/^-static$/)
1025 {
1026 push @{$useradd{LDFLAGS}}, $_;
1027 }
1028 elsif (m|^[-/]D(.*)$|)
1029 {
1030 push @{$useradd{CPPDEFINES}}, $1;
1031 }
1032 elsif (m|^[-/]I(.*)$|)
1033 {
1034 push @{$useradd{CPPINCLUDES}}, $1;
1035 }
1036 elsif (/^-Wp,$/)
1037 {
1038 push @{$useradd{CPPFLAGS}}, $1;
1039 }
1040 else # common if (/^[-+]/), just pass down...
1041 {
1042 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
1043 # This provides a simple way to pass options with arguments separated
1044 # by spaces without quoting (e.g. -opt%20arg translates to -opt arg).
1045 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
1046 push @{$useradd{CFLAGS}}, $_;
1047 push @{$useradd{CXXFLAGS}}, $_;
1048 }
1049 }
1050 elsif (m|^/|)
1051 {
1052 # Treat %xx as an ASCII code (e.g. replace %20 by a space character).
1053 # This provides a simple way to pass options with arguments separated
1054 # by spaces without quoting (e.g. /opt%20arg translates to /opt arg).
1055 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
1056 push @{$useradd{CFLAGS}}, $_;
1057 push @{$useradd{CXXFLAGS}}, $_;
1058 }
1059 else
1060 {
1061 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
1062 $target=$_;
1063 }
1064 unless ($_ eq $target || /^no-/ || /^disable-/)
1065 {
1066 # "no-..." follows later after implied deactivations
1067 # have been derived. (Don't take this too seriously,
1068 # we really only write OPTIONS to the Makefile out of
1069 # nostalgia.)
1070
1071 if ($config{options} eq "")
1072 { $config{options} = $_; }
1073 else
1074 { $config{options} .= " ".$_; }
1075 }
1076 }
1077
1078if (keys %deprecated_options)
1079 {
1080 warn "***** Deprecated options: ",
1081 join(", ", keys %deprecated_options), "\n";
1082 }
1083if (keys %unsupported_options)
1084 {
1085 die "***** Unsupported options: ",
1086 join(", ", keys %unsupported_options), "\n";
1087 }
1088
1089# If any %useradd entry has been set, we must check that the "make
1090# variables" haven't been set. We start by checking of any %useradd entry
1091# is set.
1092if (grep { scalar @$_ > 0 } values %useradd) {
1093 # Hash of env / make variables names. The possible values are:
1094 # 1 - "make vars"
1095 # 2 - %useradd entry set
1096 # 3 - both set
1097 my %detected_vars =
1098 map { my $v = 0;
1099 $v += 1 if $cmdvars{$_};
1100 $v += 2 if @{$useradd{$_}};
1101 $_ => $v }
1102 keys %useradd;
1103
1104 # If any of the corresponding "make variables" is set, we error
1105 if (grep { $_ & 1 } values %detected_vars) {
1106 my $names = join(', ', grep { $detected_vars{$_} > 0 }
1107 sort keys %detected_vars);
1108 die <<"_____";
1109***** Mixing make variables and additional compiler/linker flags as
1110***** configure command line option is not permitted.
1111***** Affected make variables: $names
1112_____
1113 }
1114}
1115
1116# Check through all supported command line variables to see if any of them
1117# were set, and canonicalise the values we got. If no compiler or linker
1118# flag or anything else that affects %useradd was set, we also check the
1119# environment for values.
1120my $anyuseradd =
1121 grep { defined $_ && (ref $_ ne 'ARRAY' || @$_) } values %useradd;
1122foreach (keys %user) {
1123 my $value = $cmdvars{$_};
1124 $value //= env($_) unless $anyuseradd;
1125 $value //=
1126 defined $user_synonyms{$_} ? $cmdvars{$user_synonyms{$_}} : undef;
1127 $value //= defined $user_synonyms{$_} ? env($user_synonyms{$_}) : undef
1128 unless $anyuseradd;
1129
1130 if (defined $value) {
1131 if (ref $user{$_} eq 'ARRAY') {
1132 if ($_ eq 'CPPDEFINES' || $_ eq 'CPPINCLUDES') {
1133 $user{$_} = [ split /$list_separator_re/, $value ];
1134 } else {
1135 $user{$_} = [ $value ];
1136 }
1137 } elsif (!defined $user{$_}) {
1138 $user{$_} = $value;
1139 }
1140 }
1141}
1142
1143if (grep { /-rpath\b/ } ($user{LDFLAGS} ? @{$user{LDFLAGS}} : ())
1144 && !$disabled{shared}
1145 && !($disabled{asan} && $disabled{msan} && $disabled{ubsan})) {
1146 die "***** Cannot simultaneously use -rpath, shared libraries, and\n",
1147 "***** any of asan, msan or ubsan\n";
1148}
1149
1150# If no target was given, try guessing.
1151unless ($target) {
1152 my %system_config = OpenSSL::config::get_platform(%guess_opts, %user);
1153
1154 # The $system_config{disable} is used to populate %disabled with
1155 # entries that aren't already there.
1156 foreach ( @{$system_config{disable} // []} ) {
1157 $disabled{$_} = 'system' unless defined $disabled{$_};
1158 }
1159 delete $system_config{disable};
1160
1161 # Override config entries with stuff from the guesser.
1162 # It's assumed that this really is nothing new.
1163 %config = ( %config, %system_config );
1164 $target = $system_config{target};
1165}
1166
1167sub disable {
1168 my $disable_type = shift;
1169
1170 for (@_) {
1171 $disabled{$_} = $disable_type;
1172 }
1173
1174 my @tocheckfor = (@_ ? @_ : keys %disabled);
1175 while (@tocheckfor) {
1176 my %new_tocheckfor = ();
1177 my @cascade_copy = (@disable_cascades);
1178 while (@cascade_copy) {
1179 my ($test, $descendents) =
1180 (shift @cascade_copy, shift @cascade_copy);
1181 if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
1182 foreach (grep { !defined($disabled{$_}) } @$descendents) {
1183 $new_tocheckfor{$_} = 1; $disabled{$_} = "cascade";
1184 }
1185 }
1186 }
1187 @tocheckfor = (keys %new_tocheckfor);
1188 }
1189}
1190disable(); # First cascade run
1191
1192our $die = sub { die @_; };
1193if ($target eq "TABLE") {
1194 local $die = sub { warn @_; };
1195 foreach (sort keys %table) {
1196 print_table_entry($_, "TABLE");
1197 }
1198 exit 0;
1199}
1200
1201if ($target eq "LIST") {
1202 foreach (sort keys %table) {
1203 print $_,"\n" unless $table{$_}->{template};
1204 }
1205 exit 0;
1206}
1207
1208if ($target eq "HASH") {
1209 local $die = sub { warn @_; };
1210 print "%table = (\n";
1211 foreach (sort keys %table) {
1212 print_table_entry($_, "HASH");
1213 }
1214 exit 0;
1215}
1216
1217print "Configuring OpenSSL version $config{full_version} ";
1218print "for target $target\n";
1219
1220if (scalar(@seed_sources) == 0) {
1221 print "Using os-specific seed configuration\n";
1222 push @seed_sources, 'os';
1223}
1224if (scalar(grep { $_ eq 'egd' } @seed_sources) > 0) {
1225 delete $disabled{'egd'};
1226}
1227if (scalar(grep { $_ eq 'none' } @seed_sources) > 0) {
1228 die "Cannot seed with none and anything else" if scalar(@seed_sources) > 1;
1229 warn <<_____ if scalar(@seed_sources) == 1;
1230
1231============================== WARNING ===============================
1232You have selected the --with-rand-seed=none option, which effectively
1233disables automatic reseeding of the OpenSSL random generator.
1234All operations depending on the random generator such as creating keys
1235will not work unless the random generator is seeded manually by the
1236application.
1237
1238Please read the 'Note on random number generation' section in the
1239INSTALL.md instructions and the RAND_DRBG(7) manual page for more
1240details.
1241============================== WARNING ===============================
1242
1243_____
1244}
1245push @{$config{openssl_feature_defines}},
1246 map { (my $x = $_) =~ tr|[\-a-z]|[_A-Z]|; "OPENSSL_RAND_SEED_$x" }
1247 @seed_sources;
1248
1249# Backward compatibility?
1250if ($target =~ m/^CygWin32(-.*)$/) {
1251 $target = "Cygwin".$1;
1252}
1253
1254# Support for legacy targets having a name starting with 'debug-'
1255my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
1256if ($d) {
1257 $config{build_type} = "debug";
1258
1259 # If we do not find debug-foo in the table, the target is set to foo.
1260 if (!$table{$target}) {
1261 $target = $t;
1262 }
1263}
1264
1265if ($target) {
1266 # It's possible that we have different config targets for specific
1267 # toolchains, so we try to detect them, and go for the plain config
1268 # target if not.
1269 my $found;
1270 foreach ( ( "$target-$user{CC}", "$target", undef ) ) {
1271 $found=$_ if $table{$_} && !$table{$_}->{template};
1272 last if $found;
1273 }
1274 $target = $found;
1275} else {
1276 # If we don't have a config target now, we try the C compiler as we
1277 # fallback
1278 my $cc = $user{CC} // 'cc';
1279 $target = $cc if $table{$cc} && !$table{$cc}->{template};
1280}
1281
1282&usage unless $target;
1283
1284exit 0 if $dryrun; # From older 'config'
1285
1286$config{target} = $target;
1287my %target = resolve_config($target);
1288
1289foreach (keys %target_attr_translate) {
1290 $target{$target_attr_translate{$_}} = $target{$_}
1291 if $target{$_};
1292 delete $target{$_};
1293}
1294
1295%target = ( %{$table{DEFAULTS}}, %target );
1296
1297my %conf_files = map { $_ => 1 } (@{$target{_conf_fname_int}});
1298$config{conf_files} = [ sort keys %conf_files ];
1299
1300# Using sub disable within these loops may prove fragile, so we run
1301# a cascade afterwards
1302foreach my $feature (@{$target{disable}}) {
1303 if (exists $deprecated_disablables{$feature}) {
1304 warn "***** config $target disables deprecated feature $feature\n";
1305 } elsif (!grep { $feature eq $_ } @disablables) {
1306 die "***** config $target disables unknown feature $feature\n";
1307 }
1308 $disabled{$feature} = 'config';
1309}
1310foreach my $feature (@{$target{enable}}) {
1311 if ("default" eq ($disabled{$feature} // "")) {
1312 if (exists $deprecated_disablables{$feature}) {
1313 warn "***** config $target enables deprecated feature $feature\n";
1314 } elsif (!grep { $feature eq $_ } @disablables) {
1315 die "***** config $target enables unknown feature $feature\n";
1316 }
1317 delete $disabled{$feature};
1318 }
1319}
1320
1321# If uplink_arch isn't defined, disable uplink
1322$disabled{uplink} = 'no uplink_arch' unless (defined $target{uplink_arch});
1323# If asm_arch isn't defined, disable asm
1324$disabled{asm} = 'no asm_arch' unless (defined $target{asm_arch});
1325
1326disable(); # Run a cascade now
1327
1328$target{CXXFLAGS}//=$target{CFLAGS} if $target{CXX};
1329$target{cxxflags}//=$target{cflags} if $target{CXX};
1330$target{exe_extension}=".exe" if ($config{target} eq "DJGPP");
1331$target{exe_extension}=".pm" if ($config{target} =~ /vos/);
1332
1333# Fill %config with values from %user, and in case those are undefined or
1334# empty, use values from %target (acting as a default).
1335foreach (keys %user) {
1336 my $ref_type = ref $user{$_};
1337
1338 # Temporary function. Takes an intended ref type (empty string or "ARRAY")
1339 # and a value that's to be coerced into that type.
1340 my $mkvalue = sub {
1341 my $type = shift;
1342 my $value = shift;
1343 my $undef_p = shift;
1344
1345 die "Too many arguments for \$mkvalue" if @_;
1346
1347 while (ref $value eq 'CODE') {
1348 $value = $value->();
1349 }
1350
1351 if ($type eq 'ARRAY') {
1352 return undef unless defined $value;
1353 return undef if ref $value ne 'ARRAY' && !$value;
1354 return undef if ref $value eq 'ARRAY' && !@$value;
1355 return [ $value ] unless ref $value eq 'ARRAY';
1356 }
1357 return undef unless $value;
1358 return $value;
1359 };
1360
1361 $config{$_} =
1362 $mkvalue->($ref_type, $user{$_})
1363 || $mkvalue->($ref_type, $target{$_});
1364 delete $config{$_} unless defined $config{$_};
1365}
1366
1367# Finish up %config by appending things the user gave us on the command line
1368# apart from "make variables"
1369foreach (keys %useradd) {
1370 # The must all be lists, so we assert that here
1371 die "internal error: \$useradd{$_} isn't an ARRAY\n"
1372 unless ref $useradd{$_} eq 'ARRAY';
1373
1374 if (defined $config{$_}) {
1375 push @{$config{$_}}, @{$useradd{$_}};
1376 } else {
1377 $config{$_} = [ @{$useradd{$_}} ];
1378 }
1379}
1380# At this point, we can forget everything about %user and %useradd,
1381# because it's now all been merged into the corresponding $config entry
1382
1383if (grep { $_ =~ /(?:^|\s)-static(?:\s|$)/ } @{$config{LDFLAGS}}) {
1384 disable('static', 'pic', 'threads');
1385}
1386
1387# Allow overriding the build file name
1388$config{build_file} = env('BUILDFILE') || $target{build_file} || "Makefile";
1389
1390# Make sure build_scheme is consistent.
1391$target{build_scheme} = [ $target{build_scheme} ]
1392 if ref($target{build_scheme}) ne "ARRAY";
1393
1394my ($builder, $builder_platform, @builder_opts) =
1395 @{$target{build_scheme}};
1396
1397foreach my $checker (($builder_platform."-".$config{build_file}."-checker.pm",
1398 $builder_platform."-checker.pm")) {
1399 my $checker_path = catfile($srcdir, "Configurations", $checker);
1400 if (-f $checker_path) {
1401 my $fn = $ENV{CONFIGURE_CHECKER_WARN}
1402 ? sub { warn $@; } : sub { die $@; };
1403 if (! do $checker_path) {
1404 if ($@) {
1405 $fn->($@);
1406 } elsif ($!) {
1407 $fn->($!);
1408 } else {
1409 $fn->("The detected tools didn't match the platform\n");
1410 }
1411 }
1412 last;
1413 }
1414}
1415
1416push @{$config{defines}}, "NDEBUG" if $config{build_type} eq "release";
1417
1418if ($target =~ /^mingw/ && `$config{CC} --target-help 2>&1` =~ m/-mno-cygwin/m)
1419 {
1420 push @{$config{cflags}}, "-mno-cygwin";
1421 push @{$config{cxxflags}}, "-mno-cygwin" if $config{CXX};
1422 push @{$config{shared_ldflag}}, "-mno-cygwin";
1423 }
1424
1425if ($target =~ /linux.*-mips/ && !$disabled{asm}
1426 && !grep { $_ =~ /-m(ips|arch=)/ } (@{$config{CFLAGS}})) {
1427 # minimally required architecture flags for assembly modules
1428 my $value;
1429 $value = '-mips2' if ($target =~ /mips32/);
1430 $value = '-mips3' if ($target =~ /mips64/);
1431 unshift @{$config{cflags}}, $value;
1432 unshift @{$config{cxxflags}}, $value if $config{CXX};
1433}
1434
1435# If threads aren't disabled, check how possible they are
1436unless ($disabled{threads}) {
1437 if ($auto_threads) {
1438 # Enabled by default, disable it forcibly if unavailable
1439 if ($target{thread_scheme} eq "(unknown)") {
1440 disable("unavailable", 'threads');
1441 }
1442 } else {
1443 # The user chose to enable threads explicitly, let's see
1444 # if there's a chance that's possible
1445 if ($target{thread_scheme} eq "(unknown)") {
1446 # If the user asked for "threads" and we don't have internal
1447 # knowledge how to do it, [s]he is expected to provide any
1448 # system-dependent compiler options that are necessary. We
1449 # can't truly check that the given options are correct, but
1450 # we expect the user to know what [s]He is doing.
1451 if (!@{$config{CFLAGS}} && !@{$config{CPPDEFINES}}) {
1452 die "You asked for multi-threading support, but didn't\n"
1453 ,"provide any system-specific compiler options\n";
1454 }
1455 }
1456 }
1457}
1458
1459# Find out if clang's sanitizers have been enabled with -fsanitize
1460# flags and ensure that the corresponding %disabled elements area
1461# removed to reflect that the sanitizers are indeed enabled.
1462my %detected_sanitizers = ();
1463foreach (grep /^-fsanitize=/, @{$config{CFLAGS} || []}) {
1464 (my $checks = $_) =~ s/^-fsanitize=//;
1465 foreach (split /,/, $checks) {
1466 my $d = { address => 'asan',
1467 undefined => 'ubsan',
1468 memory => 'msan' } -> {$_};
1469 next unless defined $d;
1470
1471 $detected_sanitizers{$d} = 1;
1472 if (defined $disabled{$d}) {
1473 die "***** Conflict between disabling $d and enabling $_ sanitizer"
1474 if $disabled{$d} ne "default";
1475 delete $disabled{$d};
1476 }
1477 }
1478}
1479
1480# If threads still aren't disabled, add a C macro to ensure the source
1481# code knows about it. Any other flag is taken care of by the configs.
1482unless($disabled{threads}) {
1483 push @{$config{openssl_feature_defines}}, "OPENSSL_THREADS";
1484}
1485
1486my $no_shared_warn=0;
1487if (($target{shared_target} // '') eq "")
1488 {
1489 $no_shared_warn = 1
1490 if (!$disabled{shared} || !$disabled{"dynamic-engine"});
1491 disable('no-shared-target', 'pic');
1492 }
1493
1494if ($disabled{"dynamic-engine"}) {
1495 $config{dynamic_engines} = 0;
1496} else {
1497 $config{dynamic_engines} = 1;
1498}
1499
1500unless ($disabled{asan} || defined $detected_sanitizers{asan}) {
1501 push @{$config{cflags}}, "-fsanitize=address";
1502}
1503
1504unless ($disabled{ubsan} || defined $detected_sanitizers{ubsan}) {
1505 push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all", "-DPEDANTIC";
1506}
1507
1508unless ($disabled{msan} || defined $detected_sanitizers{msan}) {
1509 push @{$config{cflags}}, "-fsanitize=memory";
1510}
1511
1512unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1513 && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1514 push @{$config{cflags}}, "-fno-omit-frame-pointer", "-g";
1515 push @{$config{cxxflags}}, "-fno-omit-frame-pointer", "-g" if $config{CXX};
1516}
1517#
1518# Platform fix-ups
1519#
1520
1521# This saves the build files from having to check
1522if ($disabled{pic})
1523 {
1524 foreach (qw(shared_cflag shared_cxxflag shared_cppflag
1525 shared_defines shared_includes shared_ldflag
1526 module_cflags module_cxxflags module_cppflags
1527 module_defines module_includes module_lflags))
1528 {
1529 delete $config{$_};
1530 $target{$_} = "";
1531 }
1532 }
1533else
1534 {
1535 push @{$config{lib_defines}}, "OPENSSL_PIC";
1536 }
1537
1538if ($target{sys_id} ne "")
1539 {
1540 push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1541 }
1542
1543my %predefined_C = compiler_predefined($config{CROSS_COMPILE}.$config{CC});
1544my %predefined_CXX = $config{CXX}
1545 ? compiler_predefined($config{CROSS_COMPILE}.$config{CXX})
1546 : ();
1547
1548unless ($disabled{asm}) {
1549 # big endian systems can use ELFv2 ABI
1550 if ($target eq "linux-ppc64") {
1551 $target{perlasm_scheme} = "linux64v2" if ($predefined_C{_CALL_ELF} == 2);
1552 }
1553}
1554
1555# Check for makedepend capabilities.
1556if (!$disabled{makedepend}) {
1557 # If the attribute makedep_scheme is defined, then we assume that the
1558 # config target and its associated build file are programmed to deal
1559 # with it.
1560 # If makedep_scheme is undefined, we go looking for GCC compatible
1561 # dependency making, and if that's not available, we try to fall back
1562 # on 'makedepend'.
1563 if ($target{makedep_scheme}) {
1564 $config{makedep_scheme} = $target{makedep_scheme};
1565 # If the makedepcmd attribute is defined, copy it. If not, the
1566 # build files will have to fend for themselves.
1567 $config{makedepcmd} = $target{makedepcmd} if $target{makedepcmd};
1568 } elsif (($predefined_C{__GNUC__} // -1) >= 3
1569 && !($predefined_C{__APPLE_CC__} && !$predefined_C{__clang__})) {
1570 # We know that GNU C version 3 and up as well as all clang
1571 # versions support dependency generation, but Xcode did not
1572 # handle $cc -M before clang support (but claims __GNUC__ = 3)
1573 $config{makedep_scheme} = 'gcc';
1574 } else {
1575 # In all other cases, we look for 'makedepend', and set the
1576 # makedep_scheme value if we found it.
1577 $config{makedepcmd} = which('makedepend');
1578 $config{makedep_scheme} = 'makedepend' if $config{makedepcmd};
1579 }
1580
1581 # If no depend scheme is set, we disable makedepend
1582 disable('unavailable', 'makedepend') unless $config{makedep_scheme};
1583}
1584
1585if (!$disabled{asm} && !$predefined_C{__MACH__} && $^O ne 'VMS') {
1586 # probe for -Wa,--noexecstack option...
1587 if ($predefined_C{__clang__}) {
1588 # clang has builtin assembler, which doesn't recognize --help,
1589 # but it apparently recognizes the option in question on all
1590 # supported platforms even when it's meaningless. In other words
1591 # probe would fail, but probed option always accepted...
1592 push @{$config{cflags}}, "-Wa,--noexecstack", "-Qunused-arguments";
1593 } else {
1594 my $cc = $config{CROSS_COMPILE}.$config{CC};
1595 open(PIPE, "$cc -Wa,--help -c -o null.$$.o -x assembler /dev/null 2>&1 |");
1596 while(<PIPE>) {
1597 if (m/--noexecstack/) {
1598 push @{$config{cflags}}, "-Wa,--noexecstack";
1599 last;
1600 }
1601 }
1602 close(PIPE);
1603 unlink("null.$$.o");
1604 }
1605}
1606
1607# Deal with bn_ops ###################################################
1608
1609$config{bn_ll} =0;
1610my $def_int="unsigned int";
1611$config{rc4_int} =$def_int;
1612($config{b64l},$config{b64},$config{b32})=(0,0,1);
1613
1614my $count = 0;
1615foreach (sort split(/\s+/,$target{bn_ops})) {
1616 $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1617 $config{bn_ll}=1 if $_ eq 'BN_LLONG';
1618 $config{rc4_int}="unsigned char" if $_ eq 'RC4_CHAR';
1619 ($config{b64l},$config{b64},$config{b32})
1620 =(0,1,0) if $_ eq 'SIXTY_FOUR_BIT';
1621 ($config{b64l},$config{b64},$config{b32})
1622 =(1,0,0) if $_ eq 'SIXTY_FOUR_BIT_LONG';
1623 ($config{b64l},$config{b64},$config{b32})
1624 =(0,0,1) if $_ eq 'THIRTY_TWO_BIT';
1625}
1626die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1627 if $count > 1;
1628
1629$config{api} = $config{major} * 10000 + $config{minor} * 100
1630 unless $config{api};
1631foreach (keys %$apitable) {
1632 $disabled{"deprecated-$_"} = "deprecation"
1633 if $disabled{deprecated} && $config{api} >= $apitable->{$_};
1634}
1635
1636disable(); # Run a cascade now
1637
1638# Hack cflags for better warnings (dev option) #######################
1639
1640# "Stringify" the C and C++ flags string. This permits it to be made part of
1641# a string and works as well on command lines.
1642$config{cflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1643 @{$config{cflags}} ];
1644$config{cxxflags} = [ map { (my $x = $_) =~ s/([\\\"])/\\$1/g; $x }
1645 @{$config{cxxflags}} ] if $config{CXX};
1646
1647$config{openssl_api_defines} = [
1648 "OPENSSL_CONFIGURED_API=".$config{api},
1649];
1650
1651my @strict_warnings_collection=();
1652if ($strict_warnings)
1653 {
1654 my $wopt;
1655 my $gccver = $predefined_C{__GNUC__} // -1;
1656
1657 if ($gccver >= 4)
1658 {
1659 push @strict_warnings_collection, @gcc_devteam_warn;
1660 push @strict_warnings_collection, @clang_devteam_warn
1661 if (defined($predefined_C{__clang__}));
1662 }
1663 elsif ($config{target} =~ /^VC-/)
1664 {
1665 push @strict_warnings_collection, @cl_devteam_warn;
1666 }
1667 else
1668 {
1669 warn "WARNING --strict-warnings requires gcc[>=4] or gcc-alike, or MSVC"
1670 }
1671 }
1672
1673$config{CFLAGS} = [ map { $_ eq '--ossl-strict-warnings'
1674 ? @strict_warnings_collection
1675 : ( $_ ) }
1676 @{$config{CFLAGS}} ];
1677
1678unless ($disabled{afalgeng}) {
1679 $config{afalgeng}="";
1680 if (grep { $_ eq 'afalgeng' } @{$target{enable}}) {
1681 my $minver = 4*10000 + 1*100 + 0;
1682 if ($config{CROSS_COMPILE} eq "") {
1683 my $verstr = `uname -r`;
1684 my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1685 ($mi2) = $mi2 =~ /(\d+)/;
1686 my $ver = $ma*10000 + $mi1*100 + $mi2;
1687 if ($ver < $minver) {
1688 disable('too-old-kernel', 'afalgeng');
1689 } else {
1690 push @{$config{engdirs}}, "afalg";
1691 }
1692 } else {
1693 disable('cross-compiling', 'afalgeng');
1694 }
1695 } else {
1696 disable('not-linux', 'afalgeng');
1697 }
1698}
1699
1700unless ($disabled{devcryptoeng}) {
1701 if ($target =~ m/^BSD/) {
1702 my $maxver = 5*100 + 7;
1703 my $sysstr = `uname -s`;
1704 my $verstr = `uname -r`;
1705 $sysstr =~ s|\R$||;
1706 $verstr =~ s|\R$||;
1707 my ($ma, $mi, @rest) = split m|\.|, $verstr;
1708 my $ver = $ma*100 + $mi;
1709 if ($sysstr eq 'OpenBSD' && $ver >= $maxver) {
1710 disable('too-new-kernel', 'devcryptoeng');
1711 }
1712 }
1713}
1714
1715unless ($disabled{ktls}) {
1716 $config{ktls}="";
1717 my $cc = $config{CROSS_COMPILE}.$config{CC};
1718 if ($target =~ m/^linux/) {
1719 system("printf '#include <sys/types.h>\n#include <linux/tls.h>' | $cc -E - >/dev/null 2>&1");
1720 if ($? != 0) {
1721 disable('too-old-kernel', 'ktls');
1722 }
1723 } elsif ($target =~ m/^BSD/) {
1724 system("printf '#include <sys/types.h>\n#include <sys/ktls.h>' | $cc -E - >/dev/null 2>&1");
1725 if ($? != 0) {
1726 disable('too-old-freebsd', 'ktls');
1727 }
1728 } else {
1729 disable('not-linux-or-freebsd', 'ktls');
1730 }
1731}
1732
1733push @{$config{openssl_other_defines}}, "OPENSSL_NO_KTLS" if ($disabled{ktls});
1734
1735# Get the extra flags used when building shared libraries and modules. We
1736# do this late because some of them depend on %disabled.
1737
1738# Make the flags to build DSOs the same as for shared libraries unless they
1739# are already defined
1740$target{module_cflags} = $target{shared_cflag} unless defined $target{module_cflags};
1741$target{module_cxxflags} = $target{shared_cxxflag} unless defined $target{module_cxxflags};
1742$target{module_ldflags} = $target{shared_ldflag} unless defined $target{module_ldflags};
1743{
1744 my $shared_info_pl =
1745 catfile(dirname($0), "Configurations", "shared-info.pl");
1746 my %shared_info = read_eval_file($shared_info_pl);
1747 push @{$target{_conf_fname_int}}, $shared_info_pl;
1748 my $si = $target{shared_target};
1749 while (ref $si ne "HASH") {
1750 last if ! defined $si;
1751 if (ref $si eq "CODE") {
1752 $si = $si->();
1753 } else {
1754 $si = $shared_info{$si};
1755 }
1756 }
1757
1758 # Some of the 'shared_target' values don't have any entries in
1759 # %shared_info. That's perfectly fine, AS LONG AS the build file
1760 # template knows how to handle this. That is currently the case for
1761 # Windows and VMS.
1762 if (defined $si) {
1763 # Just as above, copy certain shared_* attributes to the corresponding
1764 # module_ attribute unless the latter is already defined
1765 $si->{module_cflags} = $si->{shared_cflag} unless defined $si->{module_cflags};
1766 $si->{module_cxxflags} = $si->{shared_cxxflag} unless defined $si->{module_cxxflags};
1767 $si->{module_ldflags} = $si->{shared_ldflag} unless defined $si->{module_ldflags};
1768 foreach (sort keys %$si) {
1769 $target{$_} = defined $target{$_}
1770 ? add($si->{$_})->($target{$_})
1771 : $si->{$_};
1772 }
1773 }
1774}
1775
1776# ALL MODIFICATIONS TO %disabled, %config and %target MUST BE DONE FROM HERE ON
1777
1778######################################################################
1779# Build up information for skipping certain directories depending on disabled
1780# features, as well as setting up macros for disabled features.
1781
1782# This is a tentative database of directories to skip. Some entries may not
1783# correspond to anything real, but that's ok, they will simply be ignored.
1784# The actual processing of these entries is done in the build.info lookup
1785# loop further down.
1786#
1787# The key is a Unix formatted path in the source tree, the value is an index
1788# into %disabled_info, so any existing path gets added to a corresponding
1789# 'skipped' entry in there with the list of skipped directories.
1790my %skipdir = ();
1791my %disabled_info = (); # For configdata.pm
1792foreach my $what (sort keys %disabled) {
1793 # There are deprecated disablables that translate to themselves.
1794 # They cause disabling cascades, but should otherwise not regiter.
1795 next if $deprecated_disablables{$what};
1796 # The generated $disabled{"deprecated-x.y"} entries are special
1797 # and treated properly elsewhere
1798 next if $what =~ m|^deprecated-|;
1799
1800 $config{options} .= " no-$what";
1801
1802 if (!grep { $what eq $_ } ( 'buildtest-c++', 'fips', 'threads', 'shared',
1803 'module', 'pic', 'dynamic-engine', 'makedepend',
1804 'zlib-dynamic', 'zlib', 'sse2', 'legacy' )) {
1805 (my $WHAT = uc $what) =~ s|-|_|g;
1806 my $skipdir = $what;
1807
1808 # fix-up crypto/directory name(s)
1809 $skipdir = "ripemd" if $what eq "rmd160";
1810 $skipdir = "whrlpool" if $what eq "whirlpool";
1811
1812 my $macro = $disabled_info{$what}->{macro} = "OPENSSL_NO_$WHAT";
1813 push @{$config{openssl_feature_defines}}, $macro;
1814
1815 $skipdir{engines} = $what if $what eq 'engine';
1816 $skipdir{"crypto/$skipdir"} = $what
1817 unless $what eq 'async' || $what eq 'err' || $what eq 'dso';
1818 }
1819}
1820
1821if ($disabled{"dynamic-engine"}) {
1822 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1823} else {
1824 push @{$config{openssl_feature_defines}}, "OPENSSL_NO_STATIC_ENGINE";
1825}
1826
1827# If we use the unified build, collect information from build.info files
1828my %unified_info = ();
1829
1830my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1831if ($builder eq "unified") {
1832 use Text::Template 1.46;
1833
1834 sub cleandir {
1835 my $base = shift;
1836 my $dir = shift;
1837 my $relativeto = shift || ".";
1838
1839 $dir = catdir($base,$dir) unless isabsolute($dir);
1840
1841 # Make sure the directories we're building in exists
1842 mkpath($dir);
1843
1844 my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1845 #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1846 return $res;
1847 }
1848
1849 sub cleanfile {
1850 my $base = shift;
1851 my $file = shift;
1852 my $relativeto = shift || ".";
1853
1854 $file = catfile($base,$file) unless isabsolute($file);
1855
1856 my $d = dirname($file);
1857 my $f = basename($file);
1858
1859 # Make sure the directories we're building in exists
1860 mkpath($d);
1861
1862 my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1863 #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1864 return $res;
1865 }
1866
1867 # Store the name of the template file we will build the build file from
1868 # in %config. This may be useful for the build file itself.
1869 my @build_file_template_names =
1870 ( $builder_platform."-".$config{build_file}.".tmpl",
1871 $config{build_file}.".tmpl" );
1872 my @build_file_templates = ();
1873
1874 # First, look in the user provided directory, if given
1875 if (defined env($local_config_envname)) {
1876 @build_file_templates =
1877 map {
1878 if ($^O eq 'VMS') {
1879 # VMS environment variables are logical names,
1880 # which can be used as is
1881 $local_config_envname . ':' . $_;
1882 } else {
1883 catfile(env($local_config_envname), $_);
1884 }
1885 }
1886 @build_file_template_names;
1887 }
1888 # Then, look in our standard directory
1889 push @build_file_templates,
1890 ( map { cleanfile($srcdir, catfile("Configurations", $_), $blddir) }
1891 @build_file_template_names );
1892
1893 my $build_file_template;
1894 for $_ (@build_file_templates) {
1895 $build_file_template = $_;
1896 last if -f $build_file_template;
1897
1898 $build_file_template = undef;
1899 }
1900 if (!defined $build_file_template) {
1901 die "*** Couldn't find any of:\n", join("\n", @build_file_templates), "\n";
1902 }
1903 $config{build_file_templates}
1904 = [ cleanfile($srcdir, catfile("Configurations", "common0.tmpl"),
1905 $blddir),
1906 $build_file_template ];
1907
1908 my @build_dirs = ( [ ] ); # current directory
1909
1910 $config{build_infos} = [ ];
1911
1912 # We want to detect configdata.pm in the source tree, so we
1913 # don't use it if the build tree is different.
1914 my $src_configdata = cleanfile($srcdir, "configdata.pm", $blddir);
1915
1916 # Any source file that we recognise is placed in this hash table, with
1917 # the list of its intended destinations as value. When everything has
1918 # been collected, there's a routine that checks that these source files
1919 # exist, or if they are generated, that the generator exists.
1920 my %check_exist = ();
1921 my %check_generate = ();
1922
1923 my %ordinals = ();
1924 while (@build_dirs) {
1925 my @curd = @{shift @build_dirs};
1926 my $sourced = catdir($srcdir, @curd);
1927 my $buildd = catdir($blddir, @curd);
1928
1929 my $unixdir = join('/', @curd);
1930 if (exists $skipdir{$unixdir}) {
1931 my $what = $skipdir{$unixdir};
1932 push @{$disabled_info{$what}->{skipped}}, catdir(@curd);
1933 next;
1934 }
1935
1936 mkpath($buildd);
1937
1938 my $f = 'build.info';
1939 # The basic things we're trying to build
1940 my @programs = ();
1941 my @libraries = ();
1942 my @modules = ();
1943 my @scripts = ();
1944
1945 my %sources = ();
1946 my %shared_sources = ();
1947 my %includes = ();
1948 my %defines = ();
1949 my %depends = ();
1950 my %generate = ();
1951 my %imagedocs = ();
1952 my %htmldocs = ();
1953 my %mandocs = ();
1954
1955 # Support for $variablename in build.info files.
1956 # Embedded perl code is the ultimate master, still. If its output
1957 # contains a dollar sign, it had better be escaped, or it will be
1958 # taken for a variable name prefix.
1959 my %variables = ();
1960 # Variable name syntax
1961 my $variable_name_re = qr/(?P<VARIABLE>[[:alpha:]][[:alnum:]_]*)/;
1962 # Value modifier syntaxes
1963 my $variable_subst_re = qr/\/(?P<RE>(?:\\\/|.)*?)\/(?P<SUBST>.*?)/;
1964 # Variable reference
1965 my $variable_simple_re = qr/(?<!\\)\$${variable_name_re}/;
1966 my $variable_w_mod_re =
1967 qr/(?<!\\)\$\{${variable_name_re}(?P<MOD>(?:\\\/|.)*?)\}/;
1968 # Tie it all together
1969 my $variable_re = qr/${variable_simple_re}|${variable_w_mod_re}/;
1970
1971 my $expand_variables = sub {
1972 my $value = '';
1973 my $value_rest = shift;
1974
1975 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1976 print STDERR
1977 "DEBUG[\$expand_variables] Parsed '$value_rest' ...\n"
1978 }
1979
1980 while ($value_rest =~ /${variable_re}/) {
1981 # We must save important regexp values, because the next
1982 # regexp clears them
1983 my $mod = $+{MOD};
1984 my $variable_value = $variables{$+{VARIABLE}};
1985
1986 $value_rest = $';
1987 $value .= $`;
1988
1989 # Process modifier expressions, if present
1990 if (defined $mod) {
1991 if ($mod =~ /^${variable_subst_re}$/) {
1992 my $re = $+{RE};
1993 my $subst = $+{SUBST};
1994
1995 $variable_value =~ s/\Q$re\E/$subst/g;
1996
1997 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
1998 print STDERR
1999 "DEBUG[\$expand_variables] ... and substituted ",
2000 "'$re' with '$subst'\n";
2001 }
2002 }
2003 }
2004
2005 $value .= $variable_value;
2006 }
2007 if ($ENV{CONFIGURE_DEBUG_VARIABLE_EXPAND}) {
2008 print STDERR
2009 "DEBUG[\$expand_variables] ... into: '$value$value_rest'\n";
2010 }
2011 return $value . $value_rest;
2012 };
2013
2014 # Support for attributes in build.info files
2015 my %attributes = ();
2016 my $handle_attributes = sub {
2017 my $attr_str = shift;
2018 my $ref = shift;
2019 my @goals = @_;
2020
2021 return unless defined $attr_str;
2022
2023 my @a = tokenize($attr_str, qr|\s*,\s*|);
2024 foreach my $a (@a) {
2025 my $ac = 1;
2026 my $ak = $a;
2027 my $av = 1;
2028 if ($a =~ m|^(!)?(.*?)\s* = \s*(.*?)$|x) {
2029 $ac = ! $1;
2030 $ak = $2;
2031 $av = $3;
2032 }
2033 foreach my $g (@goals) {
2034 if ($ac) {
2035 $$ref->{$g}->{$ak} = $av;
2036 } else {
2037 delete $$ref->{$g}->{$ak};
2038 }
2039 }
2040 }
2041 };
2042
2043 # Support for pushing values on multiple indexes of a given hash
2044 # array.
2045 my $push_to = sub {
2046 my $valueref = shift;
2047 my $index_str = shift; # May be undef or empty
2048 my $attrref = shift; # May be undef
2049 my $attr_str = shift;
2050 my @values = @_;
2051
2052 if (defined $index_str) {
2053 my @indexes = ( '' );
2054 if ($index_str !~ m|^\s*$|) {
2055 @indexes = tokenize($index_str);
2056 }
2057 foreach (@indexes) {
2058 push @{$valueref->{$_}}, @values;
2059 if (defined $attrref) {
2060 $handle_attributes->($attr_str, \$$attrref->{$_},
2061 @values);
2062 }
2063 }
2064 } else {
2065 push @$valueref, @values;
2066 $handle_attributes->($attr_str, $attrref, @values)
2067 if defined $attrref;
2068 }
2069 };
2070
2071 if ($buildinfo_debug) {
2072 print STDERR "DEBUG: Reading ",catfile($sourced, $f),"\n";
2073 }
2074 push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
2075 my $template =
2076 Text::Template->new(TYPE => 'FILE',
2077 SOURCE => catfile($sourced, $f),
2078 PREPEND => qq{use lib "$FindBin::Bin/util/perl";});
2079 die "Something went wrong with $sourced/$f: $!\n" unless $template;
2080 my @text =
2081 split /^/m,
2082 $template->fill_in(HASH => { config => \%config,
2083 target => \%target,
2084 disabled => \%disabled,
2085 withargs => \%withargs,
2086 builddir => abs2rel($buildd, $blddir),
2087 sourcedir => abs2rel($sourced, $blddir),
2088 buildtop => abs2rel($blddir, $blddir),
2089 sourcetop => abs2rel($srcdir, $blddir) },
2090 DELIMITERS => [ "{-", "-}" ]);
2091
2092 # The top item of this stack has the following values
2093 # -2 positive already run and we found ELSE (following ELSIF should fail)
2094 # -1 positive already run (skip until ENDIF)
2095 # 0 negatives so far (if we're at a condition, check it)
2096 # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
2097 # 2 positive ELSE (following ELSIF should fail)
2098 my @skip = ();
2099
2100 # A few useful generic regexps
2101 my $index_re = qr/\[\s*(?P<INDEX>(?:\\.|.)*?)\s*\]/;
2102 my $cond_re = qr/\[\s*(?P<COND>(?:\\.|.)*?)\s*\]/;
2103 my $attribs_re = qr/(?:\{\s*(?P<ATTRIBS>(?:\\.|.)*?)\s*\})?/;
2104 my $value_re = qr/(?P<VALUE>.*?)/;
2105 collect_information(
2106 collect_from_array([ @text ],
2107 qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
2108 $l1 =~ s/\\$//; $l1.$l2 }),
2109 # Info we're looking for
2110 qr/^\s* IF ${cond_re} \s*$/x
2111 => sub {
2112 if (! @skip || $skip[$#skip] > 0) {
2113 push @skip, !! $expand_variables->($+{COND});
2114 } else {
2115 push @skip, -1;
2116 }
2117 },
2118 qr/^\s* ELSIF ${cond_re} \s*$/x
2119 => sub { die "ELSIF out of scope" if ! @skip;
2120 die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
2121 $skip[$#skip] = -1 if $skip[$#skip] != 0;
2122 $skip[$#skip] = !! $expand_variables->($+{COND})
2123 if $skip[$#skip] == 0; },
2124 qr/^\s* ELSE \s*$/x
2125 => sub { die "ELSE out of scope" if ! @skip;
2126 $skip[$#skip] = -2 if $skip[$#skip] != 0;
2127 $skip[$#skip] = 2 if $skip[$#skip] == 0; },
2128 qr/^\s* ENDIF \s*$/x
2129 => sub { die "ENDIF out of scope" if ! @skip;
2130 pop @skip; },
2131 qr/^\s* ${variable_re} \s* = \s* ${value_re} \s* $/x
2132 => sub {
2133 if (!@skip || $skip[$#skip] > 0) {
2134 $variables{$+{VARIABLE}} = $expand_variables->($+{VALUE});
2135 }
2136 },
2137 qr/^\s* SUBDIRS \s* = \s* ${value_re} \s* $/x
2138 => sub {
2139 if (!@skip || $skip[$#skip] > 0) {
2140 foreach (tokenize($expand_variables->($+{VALUE}))) {
2141 push @build_dirs, [ @curd, splitdir($_, 1) ];
2142 }
2143 }
2144 },
2145 qr/^\s* PROGRAMS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2146 => sub { $push_to->(\@programs, undef,
2147 \$attributes{programs}, $+{ATTRIBS},
2148 tokenize($expand_variables->($+{VALUE})))
2149 if !@skip || $skip[$#skip] > 0; },
2150 qr/^\s* LIBS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2151 => sub { $push_to->(\@libraries, undef,
2152 \$attributes{libraries}, $+{ATTRIBS},
2153 tokenize($expand_variables->($+{VALUE})))
2154 if !@skip || $skip[$#skip] > 0; },
2155 qr/^\s* MODULES ${attribs_re} \s* = \s* ${value_re} \s* $/x
2156 => sub { $push_to->(\@modules, undef,
2157 \$attributes{modules}, $+{ATTRIBS},
2158 tokenize($expand_variables->($+{VALUE})))
2159 if !@skip || $skip[$#skip] > 0; },
2160 qr/^\s* SCRIPTS ${attribs_re} \s* = \s* ${value_re} \s* $/x
2161 => sub { $push_to->(\@scripts, undef,
2162 \$attributes{scripts}, $+{ATTRIBS},
2163 tokenize($expand_variables->($+{VALUE})))
2164 if !@skip || $skip[$#skip] > 0; },
2165 qr/^\s* IMAGEDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2166 => sub { $push_to->(\%imagedocs, $expand_variables->($+{INDEX}),
2167 undef, undef,
2168 tokenize($expand_variables->($+{VALUE})))
2169 if !@skip || $skip[$#skip] > 0; },
2170 qr/^\s* HTMLDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2171 => sub { $push_to->(\%htmldocs, $expand_variables->($+{INDEX}),
2172 undef, undef,
2173 tokenize($expand_variables->($+{VALUE})))
2174 if !@skip || $skip[$#skip] > 0; },
2175 qr/^\s* MANDOCS ${index_re} \s* = \s* ${value_re} \s* $/x
2176 => sub { $push_to->(\%mandocs, $expand_variables->($+{INDEX}),
2177 undef, undef,
2178 tokenize($expand_variables->($+{VALUE})))
2179 if !@skip || $skip[$#skip] > 0; },
2180 qr/^\s* SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2181 => sub { $push_to->(\%sources, $expand_variables->($+{INDEX}),
2182 \$attributes{sources}, $+{ATTRIBS},
2183 tokenize($expand_variables->($+{VALUE})))
2184 if !@skip || $skip[$#skip] > 0; },
2185 qr/^\s* SHARED_SOURCE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2186 => sub { $push_to->(\%shared_sources, $expand_variables->($+{INDEX}),
2187 \$attributes{sources}, $+{ATTRIBS},
2188 tokenize($expand_variables->($+{VALUE})))
2189 if !@skip || $skip[$#skip] > 0; },
2190 qr/^\s* INCLUDE ${index_re} \s* = \s* ${value_re} \s* $/x
2191 => sub { $push_to->(\%includes, $expand_variables->($+{INDEX}),
2192 undef, undef,
2193 tokenize($expand_variables->($+{VALUE})))
2194 if !@skip || $skip[$#skip] > 0; },
2195 qr/^\s* DEFINE ${index_re} \s* = \s* ${value_re} \s* $/x
2196 => sub { $push_to->(\%defines, $expand_variables->($+{INDEX}),
2197 undef, undef,
2198 tokenize($expand_variables->($+{VALUE})))
2199 if !@skip || $skip[$#skip] > 0; },
2200 qr/^\s* DEPEND ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2201 => sub { $push_to->(\%depends, $expand_variables->($+{INDEX}),
2202 \$attributes{depends}, $+{ATTRIBS},
2203 tokenize($expand_variables->($+{VALUE})))
2204 if !@skip || $skip[$#skip] > 0; },
2205 qr/^\s* GENERATE ${index_re} ${attribs_re} \s* = \s* ${value_re} \s* $/x
2206 => sub { $push_to->(\%generate, $expand_variables->($+{INDEX}),
2207 \$attributes{generate}, $+{ATTRIBS},
2208 $expand_variables->($+{VALUE}))
2209 if !@skip || $skip[$#skip] > 0; },
2210 qr/^\s* (?:\#.*)? $/x => sub { },
2211 "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
2212 "BEFORE" => sub {
2213 if ($buildinfo_debug) {
2214 print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
2215 print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2216 }
2217 },
2218 "AFTER" => sub {
2219 if ($buildinfo_debug) {
2220 print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
2221 }
2222 },
2223 );
2224 die "runaway IF?" if (@skip);
2225
2226 if (grep { defined $attributes{modules}->{$_}->{engine} } keys %attributes
2227 and !$config{dynamic_engines}) {
2228 die <<"EOF"
2229ENGINES can only be used if configured with 'dynamic-engine'.
2230This is usually a fault in a build.info file.
2231EOF
2232 }
2233
2234 {
2235 my %infos = ( programs => [ @programs ],
2236 libraries => [ @libraries ],
2237 modules => [ @modules ],
2238 scripts => [ @scripts ] );
2239 foreach my $k (keys %infos) {
2240 foreach (@{$infos{$k}}) {
2241 my $item = cleanfile($buildd, $_, $blddir);
2242 $unified_info{$k}->{$item} = 1;
2243
2244 # Fix up associated attributes
2245 $unified_info{attributes}->{$k}->{$item} =
2246 $attributes{$k}->{$_}
2247 if defined $attributes{$k}->{$_};
2248 }
2249 }
2250 }
2251
2252 # Check that we haven't defined any library as both shared and
2253 # explicitly static. That is forbidden.
2254 my @doubles = ();
2255 foreach (grep /\.a$/, keys %{$unified_info{libraries}}) {
2256 (my $l = $_) =~ s/\.a$//;
2257 push @doubles, $l if defined $unified_info{libraries}->{$l};
2258 }
2259 die "these libraries are both explicitly static and shared:\n ",
2260 join(" ", @doubles), "\n"
2261 if @doubles;
2262
2263 foreach (keys %sources) {
2264 my $dest = $_;
2265 my $ddest = cleanfile($buildd, $_, $blddir);
2266 foreach (@{$sources{$dest}}) {
2267 my $s = cleanfile($sourced, $_, $blddir);
2268
2269 # If it's generated or we simply don't find it in the source
2270 # tree, we assume it's in the build tree.
2271 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2272 $s = cleanfile($buildd, $_, $blddir);
2273 }
2274 my $o = $_;
2275 # We recognise C++, C and asm files
2276 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2277 push @{$check_exist{$s}}, $ddest;
2278 $o =~ s/\.[csS]$/.o/; # C and assembler
2279 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2280 $o = cleanfile($buildd, $o, $blddir);
2281 $unified_info{sources}->{$ddest}->{$o} = -1;
2282 $unified_info{sources}->{$o}->{$s} = -1;
2283 } elsif ($s =~ /\.rc$/) {
2284 # We also recognise resource files
2285 push @{$check_exist{$s}}, $ddest;
2286 $o =~ s/\.rc$/.res/; # Resource configuration
2287 $o = cleanfile($buildd, $o, $blddir);
2288 $unified_info{sources}->{$ddest}->{$o} = -1;
2289 $unified_info{sources}->{$o}->{$s} = -1;
2290 } else {
2291 push @{$check_exist{$s}}, $ddest;
2292 $unified_info{sources}->{$ddest}->{$s} = 1;
2293 }
2294 # Fix up associated attributes
2295 if ($o ne $_) {
2296 $unified_info{attributes}->{sources}->{$ddest}->{$o} =
2297 $unified_info{attributes}->{sources}->{$o}->{$s} =
2298 $attributes{sources}->{$dest}->{$_}
2299 if defined $attributes{sources}->{$dest}->{$_};
2300 } else {
2301 $unified_info{attributes}->{sources}->{$ddest}->{$s} =
2302 $attributes{sources}->{$dest}->{$_}
2303 if defined $attributes{sources}->{$dest}->{$_};
2304 }
2305 }
2306 }
2307
2308 foreach (keys %shared_sources) {
2309 my $dest = $_;
2310 my $ddest = cleanfile($buildd, $_, $blddir);
2311 foreach (@{$shared_sources{$dest}}) {
2312 my $s = cleanfile($sourced, $_, $blddir);
2313
2314 # If it's generated or we simply don't find it in the source
2315 # tree, we assume it's in the build tree.
2316 if ($s eq $src_configdata || $generate{$_} || ! -f $s) {
2317 $s = cleanfile($buildd, $_, $blddir);
2318 }
2319
2320 my $o = $_;
2321 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
2322 # We recognise C++, C and asm files
2323 push @{$check_exist{$s}}, $ddest;
2324 $o =~ s/\.[csS]$/.o/; # C and assembler
2325 $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
2326 $o = cleanfile($buildd, $o, $blddir);
2327 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2328 $unified_info{sources}->{$o}->{$s} = -1;
2329 } elsif ($s =~ /\.rc$/) {
2330 # We also recognise resource files
2331 push @{$check_exist{$s}}, $ddest;
2332 $o =~ s/\.rc$/.res/; # Resource configuration
2333 $o = cleanfile($buildd, $o, $blddir);
2334 $unified_info{shared_sources}->{$ddest}->{$o} = -1;
2335 $unified_info{sources}->{$o}->{$s} = -1;
2336 } elsif ($s =~ /\.ld$/) {
2337 # We also recognise linker scripts (or corresponding)
2338 # We know they are generated files
2339 push @{$check_exist{$s}}, $ddest;
2340 $o = cleanfile($buildd, $_, $blddir);
2341 $unified_info{shared_sources}->{$ddest}->{$o} = 1;
2342 } else {
2343 die "unrecognised source file type for shared library: $s\n";
2344 }
2345 # Fix up associated attributes
2346 if ($o ne $_) {
2347 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2348 $unified_info{attributes}->{sources}->{$o}->{$s} =
2349 $attributes{sources}->{$dest}->{$_}
2350 if defined $attributes{sources}->{$dest}->{$_};
2351 } else {
2352 $unified_info{attributes}->{shared_sources}->{$ddest}->{$o} =
2353 $attributes{sources}->{$dest}->{$_}
2354 if defined $attributes{sources}->{$dest}->{$_};
2355 }
2356 }
2357 }
2358
2359 foreach (keys %generate) {
2360 my $dest = $_;
2361 my $ddest = cleanfile($buildd, $_, $blddir);
2362 die "more than one generator for $dest: "
2363 ,join(" ", @{$generate{$_}}),"\n"
2364 if scalar @{$generate{$_}} > 1;
2365 my @generator = split /\s+/, $generate{$dest}->[0];
2366 my $gen = $generator[0];
2367 $generator[0] = cleanfile($sourced, $gen, $blddir);
2368
2369 # If the generator is itself generated, it's in the build tree
2370 if ($generate{$gen} || ! -f $generator[0]) {
2371 $generator[0] = cleanfile($buildd, $gen, $blddir);
2372 }
2373 $check_generate{$ddest}->{$generator[0]}++;
2374
2375 $unified_info{generate}->{$ddest} = [ @generator ];
2376 # Fix up associated attributes
2377 $unified_info{attributes}->{generate}->{$ddest} =
2378 $attributes{generate}->{$dest}->{$gen}
2379 if defined $attributes{generate}->{$dest}->{$gen};
2380 }
2381
2382 foreach (keys %depends) {
2383 my $dest = $_;
2384 my $ddest = $dest;
2385
2386 if ($dest =~ /^\|(.*)\|$/) {
2387 # Collect the raw target
2388 $unified_info{targets}->{$1} = 1;
2389 $ddest = $1;
2390 } elsif ($dest eq '') {
2391 $ddest = '';
2392 } else {
2393 $ddest = cleanfile($sourced, $_, $blddir);
2394
2395 # If the destination doesn't exist in source, it can only be
2396 # a generated file in the build tree.
2397 if ($ddest eq $src_configdata || ! -f $ddest) {
2398 $ddest = cleanfile($buildd, $_, $blddir);
2399 }
2400 }
2401 foreach (@{$depends{$dest}}) {
2402 my $d = cleanfile($sourced, $_, $blddir);
2403 my $d2 = cleanfile($buildd, $_, $blddir);
2404
2405 # If we know it's generated, or assume it is because we can't
2406 # find it in the source tree, we set file we depend on to be
2407 # in the build tree rather than the source tree.
2408 if ($d eq $src_configdata
2409 || (grep { $d2 eq $_ }
2410 keys %{$unified_info{generate}})
2411 || ! -f $d) {
2412 $d = $d2;
2413 }
2414 $unified_info{depends}->{$ddest}->{$d} = 1;
2415
2416 # Fix up associated attributes
2417 $unified_info{attributes}->{depends}->{$ddest}->{$d} =
2418 $attributes{depends}->{$dest}->{$_}
2419 if defined $attributes{depends}->{$dest}->{$_};
2420 }
2421 }
2422
2423 foreach (keys %includes) {
2424 my $dest = $_;
2425 my $ddest = cleanfile($sourced, $_, $blddir);
2426
2427 # If the destination doesn't exist in source, it can only be
2428 # a generated file in the build tree.
2429 if ($ddest eq $src_configdata || ! -f $ddest) {
2430 $ddest = cleanfile($buildd, $_, $blddir);
2431 }
2432 foreach (@{$includes{$dest}}) {
2433 my $is = cleandir($sourced, $_, $blddir);
2434 my $ib = cleandir($buildd, $_, $blddir);
2435 push @{$unified_info{includes}->{$ddest}->{source}}, $is
2436 unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
2437 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
2438 unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
2439 }
2440 }
2441
2442 foreach my $dest (keys %defines) {
2443 my $ddest;
2444
2445 if ($dest ne "") {
2446 $ddest = cleanfile($sourced, $dest, $blddir);
2447
2448 # If the destination doesn't exist in source, it can only
2449 # be a generated file in the build tree.
2450 if (! -f $ddest) {
2451 $ddest = cleanfile($buildd, $dest, $blddir);
2452 }
2453 }
2454 foreach my $v (@{$defines{$dest}}) {
2455 $v =~ m|^([^=]*)(=.*)?$|;
2456 die "0 length macro name not permitted\n" if $1 eq "";
2457 if ($dest ne "") {
2458 die "$1 defined more than once\n"
2459 if defined $unified_info{defines}->{$ddest}->{$1};
2460 $unified_info{defines}->{$ddest}->{$1} = $2;
2461 } else {
2462 die "$1 defined more than once\n"
2463 if grep { $v eq $_ } @{$config{defines}};
2464 push @{$config{defines}}, $v;
2465 }
2466 }
2467 }
2468
2469 foreach my $section (keys %imagedocs) {
2470 foreach (@{$imagedocs{$section}}) {
2471 my $imagedocs = cleanfile($buildd, $_, $blddir);
2472 $unified_info{imagedocs}->{$section}->{$imagedocs} = 1;
2473 }
2474 }
2475
2476 foreach my $section (keys %htmldocs) {
2477 foreach (@{$htmldocs{$section}}) {
2478 my $htmldocs = cleanfile($buildd, $_, $blddir);
2479 $unified_info{htmldocs}->{$section}->{$htmldocs} = 1;
2480 }
2481 }
2482
2483 foreach my $section (keys %mandocs) {
2484 foreach (@{$mandocs{$section}}) {
2485 my $mandocs = cleanfile($buildd, $_, $blddir);
2486 $unified_info{mandocs}->{$section}->{$mandocs} = 1;
2487 }
2488 }
2489 }
2490
2491 my $ordinals_text = join(', ', sort keys %ordinals);
2492 warn <<"EOF" if $ordinals_text;
2493
2494WARNING: ORDINALS were specified for $ordinals_text
2495They are ignored and should be replaced with a combination of GENERATE,
2496DEPEND and SHARED_SOURCE.
2497EOF
2498
2499 # Check that each generated file is only generated once
2500 my $ambiguous_generation = 0;
2501 foreach (sort keys %check_generate) {
2502 my @generators = sort keys %{$check_generate{$_}};
2503 my $generators_txt = join(', ', @generators);
2504 if (scalar @generators > 1) {
2505 warn "$_ is GENERATEd by more than one generator ($generators_txt)\n";
2506 $ambiguous_generation++;
2507 }
2508 if ($check_generate{$_}->{$generators[0]} > 1) {
2509 warn "INFO: $_ has more than one GENERATE declaration (same generator)\n"
2510 }
2511 }
2512 die "There are ambiguous source file generations\n"
2513 if $ambiguous_generation > 0;
2514
2515 # All given source files should exist, or if generated, their
2516 # generator should exist. This loop ensures this is true.
2517 my $missing = 0;
2518 foreach my $orig (sort keys %check_exist) {
2519 foreach my $dest (@{$check_exist{$orig}}) {
2520 if ($orig ne $src_configdata) {
2521 if ($orig =~ /\.a$/) {
2522 # Static library names may be used as sources, so we
2523 # need to detect those and give them special treatment.
2524 unless (grep { $_ eq $orig }
2525 keys %{$unified_info{libraries}}) {
2526 warn "$orig is given as source for $dest, but no such library is built\n";
2527 $missing++;
2528 }
2529 } else {
2530 # A source may be generated, and its generator may be
2531 # generated as well. We therefore loop to dig out the
2532 # first generator.
2533 my $gen = $orig;
2534
2535 while (my @next = keys %{$check_generate{$gen}}) {
2536 $gen = $next[0];
2537 }
2538
2539 if (! -f $gen) {
2540 if ($gen ne $orig) {
2541 $missing++;
2542 warn "$orig is given as source for $dest, but its generator (leading to $gen) is missing\n";
2543 } else {
2544 $missing++;
2545 warn "$orig is given as source for $dest, but is missing\n";
2546 }
2547 }
2548 }
2549 }
2550 }
2551 }
2552 die "There are files missing\n" if $missing > 0;
2553
2554 # Go through the sources of all libraries and check that the same basename
2555 # doesn't appear more than once. Some static library archivers depend on
2556 # them being unique.
2557 {
2558 my $err = 0;
2559 foreach my $prod (keys %{$unified_info{libraries}}) {
2560 my @prod_sources =
2561 map { keys %{$unified_info{sources}->{$_}} }
2562 keys %{$unified_info{sources}->{$prod}};
2563 my %srccnt = ();
2564
2565 # Count how many times a given each source basename
2566 # appears for each product.
2567 foreach my $src (@prod_sources) {
2568 $srccnt{basename $src}++;
2569 }
2570
2571 foreach my $src (keys %srccnt) {
2572 if ((my $cnt = $srccnt{$src}) > 1) {
2573 print STDERR "$src appears $cnt times for the product $prod\n";
2574 $err++
2575 }
2576 }
2577 }
2578 die if $err > 0;
2579 }
2580
2581 # Massage the result
2582
2583 # If we depend on a header file or a perl module, add an inclusion of
2584 # its directory to allow smoothe inclusion
2585 foreach my $dest (keys %{$unified_info{depends}}) {
2586 next if $dest eq "";
2587 foreach my $d (keys %{$unified_info{depends}->{$dest}}) {
2588 next unless $d =~ /\.(h|pm)$/;
2589 my $i = dirname($d);
2590 my $spot =
2591 $d eq "configdata.pm" || defined($unified_info{generate}->{$d})
2592 ? 'build' : 'source';
2593 push @{$unified_info{includes}->{$dest}->{$spot}}, $i
2594 unless grep { $_ eq $i } @{$unified_info{includes}->{$dest}->{$spot}};
2595 }
2596 }
2597
2598 # Go through all intermediary files and change their names to something that
2599 # reflects what they will be built for. Note that for some source files,
2600 # this leads to duplicate object files because they are used multiple times.
2601 # the goal is to rename all object files according to this scheme:
2602 # {productname}-{midfix}-{origobjname}.[o|res]
2603 # the {midfix} is a keyword indicating the type of product, which is mostly
2604 # valuable for libraries since they come in two forms.
2605 #
2606 # This also reorganises the {sources} and {shared_sources} so that the
2607 # former only contains ALL object files that are supposed to end up in
2608 # static libraries and programs, while the latter contains ALL object files
2609 # that are supposed to end up in shared libraries and DSOs.
2610 # The main reason for having two different source structures is to allow
2611 # the same name to be used for the static and the shared variants of a
2612 # library.
2613 {
2614 # Take copies so we don't get interference from added stuff
2615 my %unified_copy = ();
2616 foreach (('sources', 'shared_sources')) {
2617 $unified_copy{$_} = { %{$unified_info{$_}} }
2618 if defined($unified_info{$_});
2619 delete $unified_info{$_};
2620 }
2621 foreach my $prodtype (('programs', 'libraries', 'modules', 'scripts')) {
2622 # $intent serves multi purposes:
2623 # - give a prefix for the new object files names
2624 # - in the case of libraries, rearrange the object files so static
2625 # libraries use the 'sources' structure exclusively, while shared
2626 # libraries use the 'shared_sources' structure exclusively.
2627 my $intent = {
2628 programs => { bin => { src => [ 'sources' ],
2629 dst => 'sources' } },
2630 libraries => { lib => { src => [ 'sources' ],
2631 dst => 'sources' },
2632 shlib => { prodselect =>
2633 sub { grep !/\.a$/, @_ },
2634 src => [ 'sources',
2635 'shared_sources' ],
2636 dst => 'shared_sources' } },
2637 modules => { dso => { src => [ 'sources' ],
2638 dst => 'sources' } },
2639 scripts => { script => { src => [ 'sources' ],
2640 dst => 'sources' } }
2641 } -> {$prodtype};
2642 foreach my $kind (keys %$intent) {
2643 next if ($intent->{$kind}->{dst} eq 'shared_sources'
2644 && $disabled{shared});
2645
2646 my @src = @{$intent->{$kind}->{src}};
2647 my $dst = $intent->{$kind}->{dst};
2648 my $prodselect = $intent->{$kind}->{prodselect} // sub { @_ };
2649 foreach my $prod ($prodselect->(keys %{$unified_info{$prodtype}})) {
2650 # %prod_sources has all applicable objects as keys, and
2651 # their corresponding sources as values
2652 my %prod_sources =
2653 map { $_ => [ keys %{$unified_copy{sources}->{$_}} ] }
2654 map { keys %{$unified_copy{$_}->{$prod}} }
2655 @src;
2656 foreach (keys %prod_sources) {
2657 # Only affect object files and resource files,
2658 # the others simply get a new value
2659 # (+1 instead of -1)
2660 if ($_ =~ /\.(o|res)$/) {
2661 (my $prodname = $prod) =~ s|\.a$||;
2662 my $newobj =
2663 catfile(dirname($_),
2664 basename($prodname)
2665 . '-' . $kind
2666 . '-' . basename($_));
2667 $unified_info{$dst}->{$prod}->{$newobj} = 1;
2668 foreach my $src (@{$prod_sources{$_}}) {
2669 $unified_info{sources}->{$newobj}->{$src} = 1;
2670 # Adjust source attributes
2671 my $attrs = $unified_info{attributes}->{sources};
2672 if (defined $attrs->{$prod}
2673 && defined $attrs->{$prod}->{$_}) {
2674 $attrs->{$prod}->{$newobj} =
2675 $attrs->{$prod}->{$_};
2676 delete $attrs->{$prod}->{$_};
2677 }
2678 foreach my $objsrc (keys %{$attrs->{$_} // {}}) {
2679 $attrs->{$newobj}->{$objsrc} =
2680 $attrs->{$_}->{$objsrc};
2681 delete $attrs->{$_}->{$objsrc};
2682 }
2683 }
2684 # Adjust dependencies
2685 foreach my $deps (keys %{$unified_info{depends}->{$_}}) {
2686 $unified_info{depends}->{$_}->{$deps} = -1;
2687 $unified_info{depends}->{$newobj}->{$deps} = 1;
2688 }
2689 # Adjust includes
2690 foreach my $k (('source', 'build')) {
2691 next unless
2692 defined($unified_info{includes}->{$_}->{$k});
2693 my @incs = @{$unified_info{includes}->{$_}->{$k}};
2694 $unified_info{includes}->{$newobj}->{$k} = [ @incs ];
2695 }
2696 } else {
2697 $unified_info{$dst}->{$prod}->{$_} = 1;
2698 }
2699 }
2700 }
2701 }
2702 }
2703 }
2704
2705 # At this point, we have a number of sources with the value -1. They
2706 # aren't part of the local build and are probably meant for a different
2707 # platform, and can therefore be cleaned away. That happens when making
2708 # %unified_info more efficient below.
2709
2710 ### Make unified_info a bit more efficient
2711 # One level structures
2712 foreach (("programs", "libraries", "modules", "scripts", "targets")) {
2713 $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
2714 }
2715 # Two level structures
2716 foreach my $l1 (("sources", "shared_sources", "ldadd", "depends",
2717 "imagedocs", "htmldocs", "mandocs")) {
2718 foreach my $l2 (sort keys %{$unified_info{$l1}}) {
2719 my @items =
2720 sort
2721 grep { $unified_info{$l1}->{$l2}->{$_} > 0 }
2722 keys %{$unified_info{$l1}->{$l2}};
2723 if (@items) {
2724 $unified_info{$l1}->{$l2} = [ @items ];
2725 } else {
2726 delete $unified_info{$l1}->{$l2};
2727 }
2728 }
2729 }
2730 # Defines
2731 foreach my $dest (sort keys %{$unified_info{defines}}) {
2732 $unified_info{defines}->{$dest}
2733 = [ map { $_.$unified_info{defines}->{$dest}->{$_} }
2734 sort keys %{$unified_info{defines}->{$dest}} ];
2735 }
2736 # Includes
2737 foreach my $dest (sort keys %{$unified_info{includes}}) {
2738 if (defined($unified_info{includes}->{$dest}->{build})) {
2739 my @source_includes = ();
2740 @source_includes = ( @{$unified_info{includes}->{$dest}->{source}} )
2741 if defined($unified_info{includes}->{$dest}->{source});
2742 $unified_info{includes}->{$dest} =
2743 [ @{$unified_info{includes}->{$dest}->{build}} ];
2744 foreach my $inc (@source_includes) {
2745 push @{$unified_info{includes}->{$dest}}, $inc
2746 unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
2747 }
2748 } elsif (defined($unified_info{includes}->{$dest}->{source})) {
2749 $unified_info{includes}->{$dest} =
2750 [ @{$unified_info{includes}->{$dest}->{source}} ];
2751 } else {
2752 delete $unified_info{includes}->{$dest};
2753 }
2754 }
2755
2756 # For convenience collect information regarding directories where
2757 # files are generated, those generated files and the end product
2758 # they end up in where applicable. Then, add build rules for those
2759 # directories
2760 my %loopinfo = ( "lib" => [ @{$unified_info{libraries}} ],
2761 "dso" => [ @{$unified_info{modules}} ],
2762 "bin" => [ @{$unified_info{programs}} ],
2763 "script" => [ @{$unified_info{scripts}} ],
2764 "docs" => [ (map { @{$unified_info{imagedocs}->{$_} // []} }
2765 keys %{$unified_info{imagedocs} // {}}),
2766 (map { @{$unified_info{htmldocs}->{$_} // []} }
2767 keys %{$unified_info{htmldocs} // {}}),
2768 (map { @{$unified_info{mandocs}->{$_} // []} }
2769 keys %{$unified_info{mandocs} // {}}) ] );
2770 foreach my $type (sort keys %loopinfo) {
2771 foreach my $product (@{$loopinfo{$type}}) {
2772 my %dirs = ();
2773 my $pd = dirname($product);
2774
2775 foreach (@{$unified_info{sources}->{$product} // []},
2776 @{$unified_info{shared_sources}->{$product} // []}) {
2777 my $d = dirname($_);
2778
2779 # We don't want to create targets for source directories
2780 # when building out of source
2781 next if ($config{sourcedir} ne $config{builddir}
2782 && $d =~ m|^\Q$config{sourcedir}\E|);
2783 # We already have a "test" target, and the current directory
2784 # is just silly to make a target for
2785 next if $d eq "test" || $d eq ".";
2786
2787 $dirs{$d} = 1;
2788 push @{$unified_info{dirinfo}->{$d}->{deps}}, $_
2789 if $d ne $pd;
2790 }
2791 foreach (sort keys %dirs) {
2792 push @{$unified_info{dirinfo}->{$_}->{products}->{$type}},
2793 $product;
2794 }
2795 }
2796 }
2797}
2798
2799# For the schemes that need it, we provide the old *_obj configs
2800# from the *_asm_obj ones
2801foreach (grep /_(asm|aux)_src$/, keys %target) {
2802 my $src = $_;
2803 (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
2804 $target{$obj} = $target{$src};
2805 $target{$obj} =~ s/\.[csS]\b/.o/g; # C and assembler
2806 $target{$obj} =~ s/\.(cc|cpp)\b/_cc.o/g; # C++
2807}
2808
2809# Write down our configuration where it fits #########################
2810
2811my %template_vars = (
2812 config => \%config,
2813 target => \%target,
2814 disablables => \@disablables,
2815 disablables_int => \@disablables_int,
2816 disabled => \%disabled,
2817 withargs => \%withargs,
2818 unified_info => \%unified_info,
2819 tls => \@tls,
2820 dtls => \@dtls,
2821 makevars => [ sort keys %user ],
2822 disabled_info => \%disabled_info,
2823 user_crossable => \@user_crossable,
2824);
2825my $configdata_outname = 'configdata.pm';
2826open CONFIGDATA, ">$configdata_outname.new"
2827 or die "Trying to create $configdata_outname.new: $!";
2828my $configdata_tmplname = cleanfile($srcdir, "configdata.pm.in", $blddir);
2829my $configdata_tmpl =
2830 OpenSSL::Template->new(TYPE => 'FILE', SOURCE => $configdata_tmplname);
2831$configdata_tmpl->fill_in(
2832 FILENAME => $configdata_tmplname,
2833 OUTPUT => \*CONFIGDATA,
2834 HASH => { %template_vars,
2835 autowarntext => [
2836 'WARNING: do not edit!',
2837 "Generated by Configure from $configdata_tmplname",
2838 ] }
2839) or die $Text::Template::ERROR;
2840close CONFIGDATA;
2841
2842rename "$configdata_outname.new", $configdata_outname;
2843if ($builder_platform eq 'unix') {
2844 my $mode = (0755 & ~umask);
2845 chmod $mode, 'configdata.pm'
2846 or warn sprintf("WARNING: Couldn't change mode for 'configdata.pm' to 0%03o: %s\n",$mode,$!);
2847}
2848print "Created $configdata_outname\n";
2849
2850print "Running $configdata_outname\n";
2851my $perlcmd = (quotify("maybeshell", $config{PERL}))[0];
2852my $cmd = "$perlcmd $configdata_outname";
2853#print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
2854system($cmd);
2855exit 1 if $? != 0;
2856
2857$SIG{__DIE__} = $orig_death_handler;
2858
2859print <<"EOF" if ($disabled{threads} eq "unavailable");
2860
2861The library could not be configured for supporting multi-threaded
2862applications as the compiler options required on this system are not known.
2863See file INSTALL.md for details if you need multi-threading.
2864EOF
2865
2866print <<"EOF" if ($no_shared_warn);
2867
2868The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2869platform, so we will pretend you gave the option 'no-pic', which also disables
2870'shared' and 'dynamic-engine'. If you know how to implement shared libraries
2871or position independent code, please let us know (but please first make sure
2872you have tried with a current version of OpenSSL).
2873EOF
2874
2875print $banner;
2876
2877exit(0);
2878
2879######################################################################
2880#
2881# Helpers and utility functions
2882#
2883
2884# Death handler, to print a helpful message in case of failure #######
2885#
2886sub death_handler {
2887 die @_ if $^S; # To prevent the added message in eval blocks
2888 my $build_file = $config{build_file} // "build file";
2889 my @message = ( <<"_____", @_ );
2890
2891Failure! $build_file wasn't produced.
2892Please read INSTALL.md and associated NOTES-* files. You may also have to
2893look over your available compiler tool chain or change your configuration.
2894
2895_____
2896
2897 # Dying is terminal, so it's ok to reset the signal handler here.
2898 $SIG{__DIE__} = $orig_death_handler;
2899 die @message;
2900}
2901
2902# Configuration file reading #########################################
2903
2904# Note: All of the helper functions are for lazy evaluation. They all
2905# return a CODE ref, which will return the intended value when evaluated.
2906# Thus, whenever there's mention of a returned value, it's about that
2907# intended value.
2908
2909# Helper function to implement conditional value variants, with a default
2910# plus additional values based on the value of $config{build_type}.
2911# Arguments are given in hash table form:
2912#
2913# picker(default => "Basic string: ",
2914# debug => "debug",
2915# release => "release")
2916#
2917# When configuring with --debug, the resulting string will be
2918# "Basic string: debug", and when not, it will be "Basic string: release"
2919#
2920# This can be used to create variants of sets of flags according to the
2921# build type:
2922#
2923# cflags => picker(default => "-Wall",
2924# debug => "-g -O0",
2925# release => "-O3")
2926#
2927sub picker {
2928 my %opts = @_;
2929 return sub { add($opts{default} || (),
2930 $opts{$config{build_type}} || ())->(); }
2931}
2932
2933# Helper function to combine several values of different types into one.
2934# This is useful if you want to combine a string with the result of a
2935# lazy function, such as:
2936#
2937# cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2938#
2939sub combine {
2940 my @stuff = @_;
2941 return sub { add(@stuff)->(); }
2942}
2943
2944# Helper function to implement conditional values depending on the value
2945# of $disabled{threads}. Can be used as follows:
2946#
2947# cflags => combine("-Wall", threads("-pthread"))
2948#
2949sub threads {
2950 my @flags = @_;
2951 return sub { add($disabled{threads} ? () : @flags)->(); }
2952}
2953
2954sub shared {
2955 my @flags = @_;
2956 return sub { add($disabled{shared} ? () : @flags)->(); }
2957}
2958
2959our $add_called = 0;
2960# Helper function to implement adding values to already existing configuration
2961# values. It handles elements that are ARRAYs, CODEs and scalars
2962sub _add {
2963 my $separator = shift;
2964
2965 # If there's any ARRAY in the collection of values OR the separator
2966 # is undef, we will return an ARRAY of combined values, otherwise a
2967 # string of joined values with $separator as the separator.
2968 my $found_array = !defined($separator);
2969
2970 my @values =
2971 map {
2972 my $res = $_;
2973 while (ref($res) eq "CODE") {
2974 $res = $res->();
2975 }
2976 if (defined($res)) {
2977 if (ref($res) eq "ARRAY") {
2978 $found_array = 1;
2979 @$res;
2980 } else {
2981 $res;
2982 }
2983 } else {
2984 ();
2985 }
2986 } (@_);
2987
2988 $add_called = 1;
2989
2990 if ($found_array) {
2991 [ @values ];
2992 } else {
2993 join($separator, grep { defined($_) && $_ ne "" } @values);
2994 }
2995}
2996sub add_before {
2997 my $separator = " ";
2998 if (ref($_[$#_]) eq "HASH") {
2999 my $opts = pop;
3000 $separator = $opts->{separator};
3001 }
3002 my @x = @_;
3003 sub { _add($separator, @x, @_) };
3004}
3005sub add {
3006 my $separator = " ";
3007 if (ref($_[$#_]) eq "HASH") {
3008 my $opts = pop;
3009 $separator = $opts->{separator};
3010 }
3011 my @x = @_;
3012 sub { _add($separator, @_, @x) };
3013}
3014
3015sub read_eval_file {
3016 my $fname = shift;
3017 my $content;
3018 my @result;
3019
3020 open F, "< $fname" or die "Can't open '$fname': $!\n";
3021 {
3022 undef local $/;
3023 $content = <F>;
3024 }
3025 close F;
3026 {
3027 local $@;
3028
3029 @result = ( eval $content );
3030 warn $@ if $@;
3031 }
3032 return wantarray ? @result : $result[0];
3033}
3034
3035# configuration reader, evaluates the input file as a perl script and expects
3036# it to fill %targets with target configurations. Those are then added to
3037# %table.
3038sub read_config {
3039 my $fname = shift;
3040 my %targets;
3041
3042 {
3043 # Protect certain tables from tampering
3044 local %table = ();
3045
3046 %targets = read_eval_file($fname);
3047 }
3048 my %preexisting = ();
3049 foreach (sort keys %targets) {
3050 $preexisting{$_} = 1 if $table{$_};
3051 }
3052 die <<"EOF",
3053The following config targets from $fname
3054shadow pre-existing config targets with the same name:
3055EOF
3056 map { " $_\n" } sort keys %preexisting
3057 if %preexisting;
3058
3059
3060 # For each target, check that it's configured with a hash table.
3061 foreach (keys %targets) {
3062 if (ref($targets{$_}) ne "HASH") {
3063 if (ref($targets{$_}) eq "") {
3064 warn "Deprecated target configuration for $_, ignoring...\n";
3065 } else {
3066 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
3067 }
3068 delete $targets{$_};
3069 } else {
3070 $targets{$_}->{_conf_fname_int} = add([ $fname ]);
3071 }
3072 }
3073
3074 %table = (%table, %targets);
3075
3076}
3077
3078# configuration resolver. Will only resolve all the lazy evaluation
3079# codeblocks for the chosen target and all those it inherits from,
3080# recursively
3081sub resolve_config {
3082 my $target = shift;
3083 my @breadcrumbs = @_;
3084
3085# my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
3086
3087 if (grep { $_ eq $target } @breadcrumbs) {
3088 die "inherit_from loop! target backtrace:\n "
3089 ,$target,"\n ",join("\n ", @breadcrumbs),"\n";
3090 }
3091
3092 if (!defined($table{$target})) {
3093 warn "Warning! target $target doesn't exist!\n";
3094 return ();
3095 }
3096 # Recurse through all inheritances. They will be resolved on the
3097 # fly, so when this operation is done, they will all just be a
3098 # bunch of attributes with string values.
3099 # What we get here, though, are keys with references to lists of
3100 # the combined values of them all. We will deal with lists after
3101 # this stage is done.
3102 my %combined_inheritance = ();
3103 if ($table{$target}->{inherit_from}) {
3104 my @inherit_from =
3105 map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
3106 foreach (@inherit_from) {
3107 my %inherited_config = resolve_config($_, $target, @breadcrumbs);
3108
3109 # 'template' is a marker that's considered private to
3110 # the config that had it.
3111 delete $inherited_config{template};
3112
3113 foreach (keys %inherited_config) {
3114 if (!$combined_inheritance{$_}) {
3115 $combined_inheritance{$_} = [];
3116 }
3117 push @{$combined_inheritance{$_}}, $inherited_config{$_};
3118 }
3119 }
3120 }
3121
3122 # We won't need inherit_from in this target any more, since we've
3123 # resolved all the inheritances that lead to this
3124 delete $table{$target}->{inherit_from};
3125
3126 # Now is the time to deal with those lists. Here's the place to
3127 # decide what shall be done with those lists, all based on the
3128 # values of the target we're currently dealing with.
3129 # - If a value is a coderef, it will be executed with the list of
3130 # inherited values as arguments.
3131 # - If the corresponding key doesn't have a value at all or is the
3132 # empty string, the inherited value list will be run through the
3133 # default combiner (below), and the result becomes this target's
3134 # value.
3135 # - Otherwise, this target's value is assumed to be a string that
3136 # will simply override the inherited list of values.
3137 my $default_combiner = add();
3138
3139 my %all_keys =
3140 map { $_ => 1 } (keys %combined_inheritance,
3141 keys %{$table{$target}});
3142
3143 sub process_values {
3144 my $object = shift;
3145 my $inherited = shift; # Always a [ list ]
3146 my $target = shift;
3147 my $entry = shift;
3148
3149 $add_called = 0;
3150
3151 while(ref($object) eq "CODE") {
3152 $object = $object->(@$inherited);
3153 }
3154 if (!defined($object)) {
3155 return ();
3156 }
3157 elsif (ref($object) eq "ARRAY") {
3158 local $add_called; # To make sure recursive calls don't affect it
3159 return [ map { process_values($_, $inherited, $target, $entry) }
3160 @$object ];
3161 } elsif (ref($object) eq "") {
3162 return $object;
3163 } else {
3164 die "cannot handle reference type ",ref($object)
3165 ," found in target ",$target," -> ",$entry,"\n";
3166 }
3167 }
3168
3169 foreach my $key (sort keys %all_keys) {
3170 my $previous = $combined_inheritance{$key};
3171
3172 # Current target doesn't have a value for the current key?
3173 # Assign it the default combiner, the rest of this loop body
3174 # will handle it just like any other coderef.
3175 if (!exists $table{$target}->{$key}) {
3176 $table{$target}->{$key} = $default_combiner;
3177 }
3178
3179 $table{$target}->{$key} = process_values($table{$target}->{$key},
3180 $combined_inheritance{$key},
3181 $target, $key);
3182 unless(defined($table{$target}->{$key})) {
3183 delete $table{$target}->{$key};
3184 }
3185# if ($extra_checks &&
3186# $previous && !($add_called || $previous ~~ $table{$target}->{$key})) {
3187# warn "$key got replaced in $target\n";
3188# }
3189 }
3190
3191 # Finally done, return the result.
3192 return %{$table{$target}};
3193}
3194
3195sub usage
3196 {
3197 print STDERR $usage;
3198 print STDERR "\npick os/compiler from:\n";
3199 my $j=0;
3200 my $i;
3201 my $k=0;
3202 foreach $i (sort keys %table)
3203 {
3204 next if $table{$i}->{template};
3205 next if $i =~ /^debug/;
3206 $k += length($i) + 1;
3207 if ($k > 78)
3208 {
3209 print STDERR "\n";
3210 $k=length($i);
3211 }
3212 print STDERR $i . " ";
3213 }
3214 foreach $i (sort keys %table)
3215 {
3216 next if $table{$i}->{template};
3217 next if $i !~ /^debug/;
3218 $k += length($i) + 1;
3219 if ($k > 78)
3220 {
3221 print STDERR "\n";
3222 $k=length($i);
3223 }
3224 print STDERR $i . " ";
3225 }
3226 exit(1);
3227 }
3228
3229sub compiler_predefined {
3230 state %predefined;
3231 my $cc = shift;
3232
3233 return () if $^O eq 'VMS';
3234
3235 die 'compiler_predefined called without a compiler command'
3236 unless $cc;
3237
3238 if (! $predefined{$cc}) {
3239
3240 $predefined{$cc} = {};
3241
3242 # collect compiler pre-defines from gcc or gcc-alike...
3243 open(PIPE, "$cc -dM -E -x c /dev/null 2>&1 |");
3244 while (my $l = <PIPE>) {
3245 $l =~ m/^#define\s+(\w+(?:\(\w+\))?)(?:\s+(.+))?/ or last;
3246 $predefined{$cc}->{$1} = $2 // '';
3247 }
3248 close(PIPE);
3249 }
3250
3251 return %{$predefined{$cc}};
3252}
3253
3254sub which
3255{
3256 my ($name)=@_;
3257
3258 if (eval { require IPC::Cmd; 1; }) {
3259 IPC::Cmd->import();
3260 return scalar IPC::Cmd::can_run($name);
3261 } else {
3262 # if there is $directories component in splitpath,
3263 # then it's not something to test with $PATH...
3264 return $name if (File::Spec->splitpath($name))[1];
3265
3266 foreach (File::Spec->path()) {
3267 my $fullpath = catfile($_, "$name$target{exe_extension}");
3268 if (-f $fullpath and -x $fullpath) {
3269 return $fullpath;
3270 }
3271 }
3272 }
3273}
3274
3275sub env
3276{
3277 my $name = shift;
3278 my %opts = @_;
3279
3280 unless ($opts{cacheonly}) {
3281 # Note that if $ENV{$name} doesn't exist or is undefined,
3282 # $config{perlenv}->{$name} will be created with the value
3283 # undef. This is intentional.
3284
3285 $config{perlenv}->{$name} = $ENV{$name}
3286 if ! exists $config{perlenv}->{$name};
3287 }
3288 return $config{perlenv}->{$name};
3289}
3290
3291# Configuration printer ##############################################
3292
3293sub print_table_entry
3294{
3295 local $now_printing = shift;
3296 my %target = resolve_config($now_printing);
3297 my $type = shift;
3298
3299 # Don't print the templates
3300 return if $target{template};
3301
3302 my @sequence = (
3303 "sys_id",
3304 "cpp",
3305 "cppflags",
3306 "defines",
3307 "includes",
3308 "cc",
3309 "cflags",
3310 "ld",
3311 "lflags",
3312 "loutflag",
3313 "ex_libs",
3314 "bn_ops",
3315 "enable",
3316 "disable",
3317 "poly1035_asm_src",
3318 "thread_scheme",
3319 "perlasm_scheme",
3320 "dso_scheme",
3321 "shared_target",
3322 "shared_cflag",
3323 "shared_defines",
3324 "shared_ldflag",
3325 "shared_rcflag",
3326 "shared_extension",
3327 "dso_extension",
3328 "obj_extension",
3329 "exe_extension",
3330 "ranlib",
3331 "ar",
3332 "arflags",
3333 "aroutflag",
3334 "rc",
3335 "rcflags",
3336 "rcoutflag",
3337 "mt",
3338 "mtflags",
3339 "mtinflag",
3340 "mtoutflag",
3341 "multilib",
3342 "build_scheme",
3343 );
3344
3345 if ($type eq "TABLE") {
3346 print "\n";
3347 print "*** $now_printing\n";
3348 foreach (@sequence) {
3349 if (ref($target{$_}) eq "ARRAY") {
3350 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
3351 } else {
3352 printf "\$%-12s = %s\n", $_, $target{$_};
3353 }
3354 }
3355 } elsif ($type eq "HASH") {
3356 my $largest =
3357 length((sort { length($a) <=> length($b) } @sequence)[-1]);
3358 print " '$now_printing' => {\n";
3359 foreach (@sequence) {
3360 if ($target{$_}) {
3361 if (ref($target{$_}) eq "ARRAY") {
3362 print " '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
3363 } else {
3364 print " '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
3365 }
3366 }
3367 }
3368 print " },\n";
3369 }
3370}
3371
3372# Utility routines ###################################################
3373
3374# On VMS, if the given file is a logical name, File::Spec::Functions
3375# will consider it an absolute path. There are cases when we want a
3376# purely syntactic check without checking the environment.
3377sub isabsolute {
3378 my $file = shift;
3379
3380 # On non-platforms, we just use file_name_is_absolute().
3381 return file_name_is_absolute($file) unless $^O eq "VMS";
3382
3383 # If the file spec includes a device or a directory spec,
3384 # file_name_is_absolute() is perfectly safe.
3385 return file_name_is_absolute($file) if $file =~ m|[:\[]|;
3386
3387 # Here, we know the given file spec isn't absolute
3388 return 0;
3389}
3390
3391# Makes a directory absolute and cleans out /../ in paths like foo/../bar
3392# On some platforms, this uses rel2abs(), while on others, realpath() is used.
3393# realpath() requires that at least all path components except the last is an
3394# existing directory. On VMS, the last component of the directory spec must
3395# exist.
3396sub absolutedir {
3397 my $dir = shift;
3398
3399 # realpath() is quite buggy on VMS. It uses LIB$FID_TO_NAME, which
3400 # will return the volume name for the device, no matter what. Also,
3401 # it will return an incorrect directory spec if the argument is a
3402 # directory that doesn't exist.
3403 if ($^O eq "VMS") {
3404 return rel2abs($dir);
3405 }
3406
3407 # We use realpath() on Unix, since no other will properly clean out
3408 # a directory spec.
3409 use Cwd qw/realpath/;
3410
3411 return realpath($dir);
3412}
3413
3414# Check if all paths are one and the same, using stat. They must both exist
3415# We need this for the cases when File::Spec doesn't detect case insensitivity
3416# (File::Spec::Unix assumes case sensitivity)
3417sub samedir {
3418 die "samedir expects two arguments\n" unless scalar @_ == 2;
3419
3420 my @stat0 = stat($_[0]); # First argument
3421 my @stat1 = stat($_[1]); # Second argument
3422
3423 die "Couldn't stat $_[0]" unless @stat0;
3424 die "Couldn't stat $_[1]" unless @stat1;
3425
3426 # Compare device number
3427 return 0 unless ($stat0[0] == $stat1[0]);
3428 # Compare "inode". The perl manual recommends comparing as
3429 # string rather than as number.
3430 return 0 unless ($stat0[1] eq $stat1[1]);
3431
3432 return 1; # All the same
3433}
3434
3435sub quotify {
3436 my %processors = (
3437 perl => sub { my $x = shift;
3438 $x =~ s/([\\\$\@"])/\\$1/g;
3439 return '"'.$x.'"'; },
3440 maybeshell => sub { my $x = shift;
3441 (my $y = $x) =~ s/([\\\"])/\\$1/g;
3442 if ($x ne $y || $x =~ m|\s|) {
3443 return '"'.$y.'"';
3444 } else {
3445 return $x;
3446 }
3447 },
3448 );
3449 my $for = shift;
3450 my $processor =
3451 defined($processors{$for}) ? $processors{$for} : sub { shift; };
3452
3453 return map { $processor->($_); } @_;
3454}
3455
3456# collect_from_file($filename, $line_concat_cond_re, $line_concat)
3457# $filename is a file name to read from
3458# $line_concat_cond_re is a regexp detecting a line continuation ending
3459# $line_concat is a CODEref that takes care of concatenating two lines
3460sub collect_from_file {
3461 my $filename = shift;
3462 my $line_concat_cond_re = shift;
3463 my $line_concat = shift;
3464
3465 open my $fh, $filename || die "unable to read $filename: $!\n";
3466 return sub {
3467 my $saved_line = "";
3468 $_ = "";
3469 while (<$fh>) {
3470 s|\R$||;
3471 if (defined $line_concat) {
3472 $_ = $line_concat->($saved_line, $_);
3473 $saved_line = "";
3474 }
3475 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3476 $saved_line = $_;
3477 next;
3478 }
3479 return $_;
3480 }
3481 die "$filename ending with continuation line\n" if $_;
3482 close $fh;
3483 return undef;
3484 }
3485}
3486
3487# collect_from_array($array, $line_concat_cond_re, $line_concat)
3488# $array is an ARRAYref of lines
3489# $line_concat_cond_re is a regexp detecting a line continuation ending
3490# $line_concat is a CODEref that takes care of concatenating two lines
3491sub collect_from_array {
3492 my $array = shift;
3493 my $line_concat_cond_re = shift;
3494 my $line_concat = shift;
3495 my @array = (@$array);
3496
3497 return sub {
3498 my $saved_line = "";
3499 $_ = "";
3500 while (defined($_ = shift @array)) {
3501 s|\R$||;
3502 if (defined $line_concat) {
3503 $_ = $line_concat->($saved_line, $_);
3504 $saved_line = "";
3505 }
3506 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
3507 $saved_line = $_;
3508 next;
3509 }
3510 return $_;
3511 }
3512 die "input text ending with continuation line\n" if $_;
3513 return undef;
3514 }
3515}
3516
3517# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
3518# $lineiterator is a CODEref that delivers one line at a time.
3519# All following arguments are regex/CODEref pairs, where the regexp detects a
3520# line and the CODEref does something with the result of the regexp.
3521sub collect_information {
3522 my $lineiterator = shift;
3523 my %collectors = @_;
3524
3525 while(defined($_ = $lineiterator->())) {
3526 s|\R$||;
3527 my $found = 0;
3528 if ($collectors{"BEFORE"}) {
3529 $collectors{"BEFORE"}->($_);
3530 }
3531 foreach my $re (keys %collectors) {
3532 if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
3533 $collectors{$re}->($lineiterator);
3534 $found = 1;
3535 };
3536 }
3537 if ($collectors{"OTHERWISE"}) {
3538 $collectors{"OTHERWISE"}->($lineiterator, $_)
3539 unless $found || !defined $collectors{"OTHERWISE"};
3540 }
3541 if ($collectors{"AFTER"}) {
3542 $collectors{"AFTER"}->($_);
3543 }
3544 }
3545}
3546
3547# tokenize($line)
3548# tokenize($line,$separator)
3549# $line is a line of text to split up into tokens
3550# $separator [optional] is a regular expression that separates the tokens,
3551# the default being spaces. Do not use quotes of any kind as separators,
3552# that will give undefined results.
3553# Returns a list of tokens.
3554#
3555# Tokens are divided by separator (spaces by default). If the tokens include
3556# the separators, they have to be quoted with single or double quotes.
3557# Double quotes inside a double quoted token must be escaped. Escaping is done
3558# with backslash.
3559# Basically, the same quoting rules apply for " and ' as in any
3560# Unix shell.
3561sub tokenize {
3562 my $line = my $debug_line = shift;
3563 my $separator = shift // qr|\s+|;
3564 my @result = ();
3565
3566 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3567 print STDERR "DEBUG[tokenize]: \$separator = $separator\n";
3568 }
3569
3570 while ($line =~ s|^${separator}||, $line ne "") {
3571 my $token = "";
3572 again:
3573 $line =~ m/^(.*?)(${separator}|"|'|$)/;
3574 $token .= $1;
3575 $line = $2.$';
3576
3577 if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
3578 $token .= $1;
3579 $line = $';
3580 goto again;
3581 } elsif ($line =~ m/^'([^']*)'/) {
3582 $token .= $1;
3583 $line = $';
3584 goto again;
3585 }
3586 push @result, $token;
3587 }
3588
3589 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
3590 print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
3591 print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
3592 }
3593 return @result;
3594}
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette