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1 #! /usr/bin/env perl
2 # -*- mode: perl; -*-
3 # Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
4 #
5 # Licensed under the OpenSSL license (the "License"). You may not use
6 # this file except in compliance with the License. You can obtain a copy
7 # in the file LICENSE in the source distribution or at
8 # https://www.openssl.org/source/license.html
9
10 ## Configure -- OpenSSL source tree configuration script
11
12 require 5.10.0;
13 use strict;
14 use File::Basename;
15 use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
16 use File::Path qw/mkpath/;
17 use if $^O ne "VMS", 'File::Glob' => qw/glob/;
18
19 # see INSTALL for instructions.
20
21 my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [-Dxxx] [-lxxx] [-Lxxx] [-fxxx] [-Kxxx] [no-hw-xxx|no-hw] [[no-]threads] [[no-]shared] [[no-]zlib|zlib-dynamic] [no-asm] [no-dso] [no-egd] [sctp] [386] [--prefix=DIR] [--openssldir=OPENSSLDIR] [--with-xxx[=vvv]] [--config=FILE] os/compiler[:flags]\n";
22
23 # Options:
24 #
25 # --config add the given configuration file, which will be read after
26 # any "Configurations*" files that are found in the same
27 # directory as this script.
28 # --prefix prefix for the OpenSSL installation, which includes the
29 # directories bin, lib, include, share/man, share/doc/openssl
30 # This becomes the value of INSTALLTOP in Makefile
31 # (Default: /usr/local)
32 # --openssldir OpenSSL data area, such as openssl.cnf, certificates and keys.
33 # If it's a relative directory, it will be added on the directory
34 # given with --prefix.
35 # This becomes the value of OPENSSLDIR in Makefile and in C.
36 # (Default: PREFIX/ssl)
37 #
38 # --cross-compile-prefix Add specified prefix to binutils components.
39 #
40 # --api One of 0.9.8, 1.0.0 or 1.1.0. Do not compile support for
41 # interfaces deprecated as of the specified OpenSSL version.
42 #
43 # no-hw-xxx do not compile support for specific crypto hardware.
44 # Generic OpenSSL-style methods relating to this support
45 # are always compiled but return NULL if the hardware
46 # support isn't compiled.
47 # no-hw do not compile support for any crypto hardware.
48 # [no-]threads [don't] try to create a library that is suitable for
49 # multithreaded applications (default is "threads" if we
50 # know how to do it)
51 # [no-]shared [don't] try to create shared libraries when supported.
52 # [no-]pic [don't] try to build position independent code when supported.
53 # If disabled, it also disables shared and dynamic-engine.
54 # no-asm do not use assembler
55 # no-dso do not compile in any native shared-library methods. This
56 # will ensure that all methods just return NULL.
57 # no-egd do not compile support for the entropy-gathering daemon APIs
58 # [no-]zlib [don't] compile support for zlib compression.
59 # zlib-dynamic Like "zlib", but the zlib library is expected to be a shared
60 # library and will be loaded in run-time by the OpenSSL library.
61 # sctp include SCTP support
62 # 386 generate 80386 code
63 # enable-weak-ssl-ciphers
64 # Enable weak ciphers that are disabled by default. This currently
65 # only includes RC4 based ciphers.
66 # no-sse2 disables IA-32 SSE2 code, above option implies no-sse2
67 # no-<cipher> build without specified algorithm (rsa, idea, rc5, ...)
68 # -<xxx> +<xxx> compiler options are passed through
69 #
70 # DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
71 # provided to stack calls. Generates unique stack functions for
72 # each possible stack type.
73 # BN_LLONG use the type 'long long' in crypto/bn/bn.h
74 # RC4_CHAR use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
75 # Following are set automatically by this script
76 #
77 # MD5_ASM use some extra md5 assembler,
78 # SHA1_ASM use some extra sha1 assembler, must define L_ENDIAN for x86
79 # RMD160_ASM use some extra ripemd160 assembler,
80 # SHA256_ASM sha256_block is implemented in assembler
81 # SHA512_ASM sha512_block is implemented in assembler
82 # AES_ASM AES_[en|de]crypt is implemented in assembler
83
84 # Minimum warning options... any contributions to OpenSSL should at least get
85 # past these.
86
87 # DEBUG_UNUSED enables __owur (warn unused result) checks.
88 my $gcc_devteam_warn = "-DDEBUG_UNUSED"
89 # -DPEDANTIC complements -pedantic and is meant to mask code that
90 # is not strictly standard-compliant and/or implementation-specific,
91 # e.g. inline assembly, disregards to alignment requirements, such
92 # that -pedantic would complain about. Incidentally -DPEDANTIC has
93 # to be used even in sanitized builds, because sanitizer too is
94 # supposed to and does take notice of non-standard behaviour. Then
95 # -pedantic with pre-C9x compiler would also complain about 'long
96 # long' not being supported. As 64-bit algorithms are common now,
97 # it grew impossible to resolve this without sizeable additional
98 # code, so we just tell compiler to be pedantic about everything
99 # but 'long long' type.
100 . " -DPEDANTIC -pedantic -Wno-long-long"
101 . " -Wall"
102 . " -Wsign-compare"
103 . " -Wmissing-prototypes"
104 . " -Wshadow"
105 . " -Wformat"
106 . " -Wtype-limits"
107 . " -Werror"
108 ;
109
110 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
111 # TODO(openssl-team): fix problems and investigate if (at least) the
112 # following warnings can also be enabled:
113 # -Wswitch-enum
114 # -Wcast-align
115 # -Wunreachable-code
116 # -Wlanguage-extension-token -- no, we use asm()
117 # -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
118 # -Wextended-offsetof -- no, needed in CMS ASN1 code
119 my $clang_devteam_warn = ""
120 . " -Qunused-arguments"
121 . " -Wextra"
122 . " -Wno-unused-parameter"
123 . " -Wno-missing-field-initializers"
124 . " -Wno-language-extension-token"
125 . " -Wno-extended-offsetof"
126 . " -Wconditional-uninitialized"
127 . " -Wincompatible-pointer-types-discards-qualifiers"
128 . " -Wmissing-variable-declarations"
129 ;
130
131 # This adds backtrace information to the memory leak info. Is only used
132 # when crypto-mdebug-backtrace is enabled.
133 my $memleak_devteam_backtrace = "-rdynamic";
134
135 my $strict_warnings = 0;
136
137 # As for $BSDthreads. Idea is to maintain "collective" set of flags,
138 # which would cover all BSD flavors. -pthread applies to them all,
139 # but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
140 # -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
141 # which has to be accompanied by explicit -D_THREAD_SAFE and
142 # sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
143 # seems to be sufficient?
144 our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
145
146 #
147 # API compatibility name to version number mapping.
148 #
149 my $maxapi = "1.1.0"; # API for "no-deprecated" builds
150 my $apitable = {
151 "1.1.0" => "0x10100000L",
152 "1.0.0" => "0x10000000L",
153 "0.9.8" => "0x00908000L",
154 };
155
156 our %table = ();
157 our %config = ();
158 our %withargs = ();
159
160 # Forward declarations ###############################################
161
162 # read_config(filename)
163 #
164 # Reads a configuration file and populates %table with the contents
165 # (which the configuration file places in %targets).
166 sub read_config;
167
168 # resolve_config(target)
169 #
170 # Resolves all the late evaluations, inheritances and so on for the
171 # chosen target and any target it inherits from.
172 sub resolve_config;
173
174
175 # Information collection #############################################
176
177 # Unified build supports separate build dir
178 my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
179 my $blddir = catdir(absolutedir(".")); # catdir ensures local syntax
180 my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));
181
182 my $local_config_envname = 'OPENSSL_LOCAL_CONFIG_DIR';
183
184 $config{sourcedir} = abs2rel($srcdir);
185 $config{builddir} = abs2rel($blddir);
186
187 # Collect version numbers
188 $config{version} = "unknown";
189 $config{version_num} = "unknown";
190 $config{shlib_version_number} = "unknown";
191 $config{shlib_version_history} = "unknown";
192
193 collect_information(
194 collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
195 qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
196 qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/ => sub { $config{version_num}=$1 },
197 qr/SHLIB_VERSION_NUMBER *"([^"]+)"/ => sub { $config{shlib_version_number}=$1 },
198 qr/SHLIB_VERSION_HISTORY *"([^"]*)"/ => sub { $config{shlib_version_history}=$1 }
199 );
200 if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }
201
202 ($config{major}, $config{minor})
203 = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
204 ($config{shlib_major}, $config{shlib_minor})
205 = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
206 die "erroneous version information in opensslv.h: ",
207 "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
208 if ($config{major} eq "" || $config{minor} eq ""
209 || $config{shlib_major} eq "" || $config{shlib_minor} eq "");
210
211 # Collect target configurations
212
213 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
214 foreach (sort glob($pattern)) {
215 &read_config($_);
216 }
217
218 if (defined $ENV{$local_config_envname}) {
219 if ($^O eq 'VMS') {
220 # VMS environment variables are logical names,
221 # which can be used as is
222 $pattern = $local_config_envname . ':' . '*.conf';
223 } else {
224 $pattern = catfile($ENV{$local_config_envname}, '*.conf');
225 }
226
227 foreach (sort glob($pattern)) {
228 &read_config($_);
229 }
230 }
231
232
233 print "Configuring OpenSSL version $config{version} (0x$config{version_num})\n";
234
235 $config{prefix}="";
236 $config{openssldir}="";
237 $config{processor}="";
238 $config{libdir}="";
239 $config{cross_compile_prefix}="";
240 $config{fipslibdir}="/usr/local/ssl/fips-2.0/lib/";
241 my $nofipscanistercheck=0;
242 $config{baseaddr}="0xFB00000";
243 my $auto_threads=1; # enable threads automatically? true by default
244 my $default_ranlib;
245 $config{fips}=0;
246
247 # Top level directories to build
248 $config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "tools", "fuzz" ];
249 # crypto/ subdirectories to build
250 $config{sdirs} = [
251 "objects",
252 "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2",
253 "des", "aes", "rc2", "rc4", "rc5", "idea", "bf", "cast", "camellia", "seed", "chacha", "modes",
254 "bn", "ec", "rsa", "dsa", "dh", "dso", "engine",
255 "buffer", "bio", "stack", "lhash", "rand", "err",
256 "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
257 "cms", "ts", "srp", "cmac", "ct", "async", "kdf"
258 ];
259
260 # Known TLS and DTLS protocols
261 my @tls = qw(ssl3 tls1 tls1_1 tls1_2);
262 my @dtls = qw(dtls1 dtls1_2);
263
264 # Explicitly known options that are possible to disable. They can
265 # be regexps, and will be used like this: /^no-${option}$/
266 # For developers: keep it sorted alphabetically
267
268 my @disablables = (
269 "afalgeng",
270 "asan",
271 "asm",
272 "async",
273 "autoalginit",
274 "autoerrinit",
275 "bf",
276 "blake2",
277 "camellia",
278 "capieng",
279 "cast",
280 "chacha",
281 "cmac",
282 "cms",
283 "comp",
284 "crypto-mdebug",
285 "crypto-mdebug-backtrace",
286 "ct",
287 "deprecated",
288 "des",
289 "dgram",
290 "dh",
291 "dsa",
292 "dso",
293 "dtls",
294 "dynamic-engine",
295 "ec",
296 "ec2m",
297 "ecdh",
298 "ecdsa",
299 "ec_nistp_64_gcc_128",
300 "egd",
301 "engine",
302 "err",
303 "filenames",
304 "fuzz-libfuzzer",
305 "fuzz-afl",
306 "gost",
307 "heartbeats",
308 "hw(-.+)?",
309 "idea",
310 "makedepend",
311 "md2",
312 "md4",
313 "mdc2",
314 "msan",
315 "multiblock",
316 "nextprotoneg",
317 "ocb",
318 "ocsp",
319 "pic",
320 "poly1305",
321 "posix-io",
322 "psk",
323 "rc2",
324 "rc4",
325 "rc5",
326 "rdrand",
327 "rfc3779",
328 "rmd160",
329 "scrypt",
330 "sctp",
331 "seed",
332 "shared",
333 "sock",
334 "srp",
335 "srtp",
336 "sse2",
337 "ssl",
338 "ssl-trace",
339 "static-engine",
340 "stdio",
341 "threads",
342 "tls",
343 "ts",
344 "ubsan",
345 "ui",
346 "unit-test",
347 "whirlpool",
348 "weak-ssl-ciphers",
349 "zlib",
350 "zlib-dynamic",
351 );
352 foreach my $proto ((@tls, @dtls))
353 {
354 push(@disablables, $proto);
355 push(@disablables, "$proto-method");
356 }
357
358 my %deprecated_disablables = (
359 "ssl2" => undef,
360 "buf-freelists" => undef,
361 "ripemd" => "rmd160"
362 );
363
364 # All of the following is disabled by default (RC5 was enabled before 0.9.8):
365
366 our %disabled = ( # "what" => "comment"
367 "asan" => "default",
368 "crypto-mdebug" => "default",
369 "crypto-mdebug-backtrace" => "default",
370 "ec_nistp_64_gcc_128" => "default",
371 "egd" => "default",
372 "fuzz-libfuzzer" => "default",
373 "fuzz-afl" => "default",
374 "heartbeats" => "default",
375 "md2" => "default",
376 "msan" => "default",
377 "rc5" => "default",
378 "sctp" => "default",
379 "ssl-trace" => "default",
380 "ssl3" => "default",
381 "ssl3-method" => "default",
382 "ubsan" => "default",
383 "unit-test" => "default",
384 "weak-ssl-ciphers" => "default",
385 "zlib" => "default",
386 "zlib-dynamic" => "default",
387 );
388
389 # Note: => pair form used for aesthetics, not to truly make a hash table
390 my @disable_cascades = (
391 # "what" => [ "cascade", ... ]
392 sub { $config{processor} eq "386" }
393 => [ "sse2" ],
394 "ssl" => [ "ssl3" ],
395 "ssl3-method" => [ "ssl3" ],
396 "zlib" => [ "zlib-dynamic" ],
397 "des" => [ "mdc2" ],
398 "ec" => [ "ecdsa", "ecdh" ],
399
400 "dgram" => [ "dtls", "sctp" ],
401 "sock" => [ "dgram" ],
402 "dtls" => [ @dtls ],
403
404 # SSL 3.0, (D)TLS 1.0 and TLS 1.1 require MD5 and SHA
405 "md5" => [ "ssl", "tls1", "tls1_1", "dtls1" ],
406 "sha" => [ "ssl", "tls1", "tls1_1", "dtls1" ],
407
408 # Additionally, SSL 3.0 requires either RSA or DSA+DH
409 sub { $disabled{rsa}
410 && ($disabled{dsa} || $disabled{dh}); }
411 => [ "ssl" ],
412
413 # (D)TLS 1.0 and TLS 1.1 also require either RSA or DSA+DH
414 # or ECDSA + ECDH. (D)TLS 1.2 has this requirement as well.
415 # (XXX: We don't support PSK-only builds).
416 sub { $disabled{rsa}
417 && ($disabled{dsa} || $disabled{dh})
418 && ($disabled{ecdsa} || $disabled{ecdh}); }
419 => [ "tls1", "tls1_1", "tls1_2",
420 "dtls1", "dtls1_2" ],
421
422 "tls" => [ @tls ],
423
424 # SRP and HEARTBEATS require TLSEXT
425 "tlsext" => [ "srp", "heartbeats" ],
426
427 "crypto-mdebug" => [ "crypto-mdebug-backtrace" ],
428
429 # Without DSO, we can't load dynamic engines, so don't build them dynamic
430 "dso" => [ "dynamic-engine" ],
431
432 # Without position independent code, there can be no shared libraries or DSOs
433 "pic" => [ "shared" ],
434 "shared" => [ "dynamic-engine" ],
435 "engine" => [ "afalgeng" ],
436
437 # no-autoalginit is only useful when building non-shared
438 "autoalginit" => [ "shared", "apps" ],
439
440 "stdio" => [ "apps", "capieng" ],
441 "apps" => [ "tests" ],
442 "comp" => [ "zlib" ],
443 sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
444
445 sub { !$disabled{"msan"} } => [ "asm" ],
446 );
447
448 # Avoid protocol support holes. Also disable all versions below N, if version
449 # N is disabled while N+1 is enabled.
450 #
451 my @list = (reverse @tls);
452 while ((my $first, my $second) = (shift @list, shift @list)) {
453 last unless @list;
454 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
455 => [ @list ] );
456 unshift @list, $second;
457 }
458 my @list = (reverse @dtls);
459 while ((my $first, my $second) = (shift @list, shift @list)) {
460 last unless @list;
461 push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
462 => [ @list ] );
463 unshift @list, $second;
464 }
465
466 # Explicit "no-..." options will be collected in %disabled along with the defaults.
467 # To remove something from %disabled, use "enable-foo".
468 # For symmetry, "disable-foo" is a synonym for "no-foo".
469
470 my $no_sse2=0;
471
472 &usage if ($#ARGV < 0);
473
474 my $user_cflags="";
475 my @user_defines=();
476 $config{openssl_api_defines}=[];
477 $config{openssl_algorithm_defines}=[];
478 $config{openssl_thread_defines}=[];
479 $config{openssl_sys_defines}=[];
480 $config{openssl_other_defines}=[];
481 my $libs="";
482 my $target="";
483 $config{options}="";
484 $config{build_type} = "release";
485
486 my @argvcopy=@ARGV;
487
488 if (grep /^reconf(igure)?$/, @argvcopy) {
489 if (-f "./configdata.pm") {
490 my $file = "./configdata.pm";
491 unless (my $return = do $file) {
492 die "couldn't parse $file: $@" if $@;
493 die "couldn't do $file: $!" unless defined $return;
494 die "couldn't run $file" unless $return;
495 }
496
497 @argvcopy = defined($configdata::config{perlargv}) ?
498 @{$configdata::config{perlargv}} : ();
499 die "Incorrect data to reconfigure, please do a normal configuration\n"
500 if (grep(/^reconf/,@argvcopy));
501 $ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
502 if defined($configdata::config{cross_compile_prefix});
503 $ENV{CC} = $configdata::config{cc}
504 if defined($configdata::config{cc});
505 $ENV{BUILDFILE} = $configdata::config{build_file}
506 if defined($configdata::config{build_file});
507
508 print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
509 print " CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
510 if $ENV{CROSS_COMPILE};
511 print " CC = ",$ENV{CC},"\n" if $ENV{CC};
512 print " BUILDFILE = ",$ENV{BUILDFILE},"\n" if $ENV{BUILDFILE};
513 } else {
514 die "Insufficient data to reconfigure, please do a normal configuration\n";
515 }
516 }
517
518 $config{perlargv} = [ @argvcopy ];
519
520 my %unsupported_options = ();
521 my %deprecated_options = ();
522 foreach (@argvcopy)
523 {
524 # VMS is a case insensitive environment, and depending on settings
525 # out of our control, we may receive options uppercased. Let's
526 # downcase at least the part before any equal sign.
527 if ($^O eq "VMS")
528 {
529 s/^([^=]*)/lc($1)/e;
530 }
531 s /^-no-/no-/; # some people just can't read the instructions
532
533 # rewrite some options in "enable-..." form
534 s /^-?-?shared$/enable-shared/;
535 s /^sctp$/enable-sctp/;
536 s /^threads$/enable-threads/;
537 s /^zlib$/enable-zlib/;
538 s /^zlib-dynamic$/enable-zlib-dynamic/;
539
540 if (/^(no|disable|enable)-(.+)$/)
541 {
542 my $word = $2;
543 if (!exists $deprecated_disablables{$word}
544 && !grep { $word =~ /^${_}$/ } @disablables)
545 {
546 $unsupported_options{$_} = 1;
547 next;
548 }
549 }
550 if (/^no-(.+)$/ || /^disable-(.+)$/)
551 {
552 foreach my $proto ((@tls, @dtls))
553 {
554 if ($1 eq "$proto-method")
555 {
556 $disabled{"$proto"} = "option($proto-method)";
557 last;
558 }
559 }
560 if ($1 eq "dtls")
561 {
562 foreach my $proto (@dtls)
563 {
564 $disabled{$proto} = "option(dtls)";
565 }
566 $disabled{"dtls"} = "option(dtls)";
567 }
568 elsif ($1 eq "ssl")
569 {
570 # Last one of its kind
571 $disabled{"ssl3"} = "option(ssl)";
572 }
573 elsif ($1 eq "tls")
574 {
575 # XXX: Tests will fail if all SSL/TLS
576 # protocols are disabled.
577 foreach my $proto (@tls)
578 {
579 $disabled{$proto} = "option(tls)";
580 }
581 }
582 elsif ($1 eq "static-engine")
583 {
584 delete $disabled{"dynamic-engine"};
585 }
586 elsif ($1 eq "dynamic-engine")
587 {
588 $disabled{"dynamic-engine"} = "option";
589 }
590 elsif (exists $deprecated_disablables{$1})
591 {
592 $deprecated_options{$_} = 1;
593 if (defined $deprecated_disablables{$1})
594 {
595 $disabled{$deprecated_disablables{$1}} = "option";
596 }
597 }
598 else
599 {
600 $disabled{$1} = "option";
601 }
602 # No longer an automatic choice
603 $auto_threads = 0 if ($1 eq "threads");
604 }
605 elsif (/^enable-(.+)$/)
606 {
607 if ($1 eq "static-engine")
608 {
609 $disabled{"dynamic-engine"} = "option";
610 }
611 elsif ($1 eq "dynamic-engine")
612 {
613 delete $disabled{"dynamic-engine"};
614 }
615 elsif ($1 eq "zlib-dynamic")
616 {
617 delete $disabled{"zlib"};
618 }
619 my $algo = $1;
620 delete $disabled{$algo};
621
622 # No longer an automatic choice
623 $auto_threads = 0 if ($1 eq "threads");
624 }
625 elsif (/^--strict-warnings$/)
626 {
627 $strict_warnings = 1;
628 }
629 elsif (/^--debug$/)
630 {
631 $config{build_type} = "debug";
632 }
633 elsif (/^--release$/)
634 {
635 $config{build_type} = "release";
636 }
637 elsif (/^386$/)
638 { $config{processor}=386; }
639 elsif (/^fips$/)
640 {
641 $config{fips}=1;
642 }
643 elsif (/^rsaref$/)
644 {
645 # No RSAref support any more since it's not needed.
646 # The check for the option is there so scripts aren't
647 # broken
648 }
649 elsif (/^nofipscanistercheck$/)
650 {
651 $config{fips} = 1;
652 $nofipscanistercheck = 1;
653 }
654 elsif (/^[-+]/)
655 {
656 if (/^--prefix=(.*)$/)
657 {
658 $config{prefix}=$1;
659 die "Directory given with --prefix MUST be absolute\n"
660 unless file_name_is_absolute($config{prefix});
661 }
662 elsif (/^--api=(.*)$/)
663 {
664 $config{api}=$1;
665 }
666 elsif (/^--libdir=(.*)$/)
667 {
668 $config{libdir}=$1;
669 }
670 elsif (/^--openssldir=(.*)$/)
671 {
672 $config{openssldir}=$1;
673 }
674 elsif (/^--with-zlib-lib=(.*)$/)
675 {
676 $withargs{zlib_lib}=$1;
677 }
678 elsif (/^--with-zlib-include=(.*)$/)
679 {
680 $withargs{zlib_include}=$1;
681 }
682 elsif (/^--with-fuzzer-lib=(.*)$/)
683 {
684 $withargs{fuzzer_lib}=$1;
685 }
686 elsif (/^--with-fuzzer-include=(.*)$/)
687 {
688 $withargs{fuzzer_include}=$1;
689 }
690 elsif (/^--with-fipslibdir=(.*)$/)
691 {
692 $config{fipslibdir}="$1/";
693 }
694 elsif (/^--with-baseaddr=(.*)$/)
695 {
696 $config{baseaddr}="$1";
697 }
698 elsif (/^--cross-compile-prefix=(.*)$/)
699 {
700 $config{cross_compile_prefix}=$1;
701 }
702 elsif (/^--config=(.*)$/)
703 {
704 read_config $1;
705 }
706 elsif (/^-[lL](.*)$/ or /^-Wl,/)
707 {
708 $libs.=$_." ";
709 }
710 elsif (/^-static$/)
711 {
712 $libs.=$_." ";
713 $disabled{"pic"} = "forced";
714 $disabled{"shared"} = "forced";
715 $disabled{"threads"} = "forced";
716 }
717 elsif (/^-D(.*)$/)
718 {
719 push @user_defines, $1;
720 }
721 else # common if (/^[-+]/), just pass down...
722 {
723 $_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
724 $user_cflags.=" ".$_;
725 }
726 }
727 else
728 {
729 die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
730 $target=$_;
731 }
732 unless ($_ eq $target || /^no-/ || /^disable-/)
733 {
734 # "no-..." follows later after implied disactivations
735 # have been derived. (Don't take this too seriously,
736 # we really only write OPTIONS to the Makefile out of
737 # nostalgia.)
738
739 if ($config{options} eq "")
740 { $config{options} = $_; }
741 else
742 { $config{options} .= " ".$_; }
743 }
744
745 if (defined($config{api}) && !exists $apitable->{$config{api}}) {
746 die "***** Unsupported api compatibility level: $config{api}\n",
747 }
748
749 if (keys %deprecated_options)
750 {
751 warn "***** Deprecated options: ",
752 join(", ", keys %deprecated_options), "\n";
753 }
754 if (keys %unsupported_options)
755 {
756 die "***** Unsupported options: ",
757 join(", ", keys %unsupported_options), "\n";
758 }
759 }
760
761 if ($config{fips})
762 {
763 delete $disabled{"shared"} if ($disabled{"shared"} =~ /^default/);
764 }
765 else
766 {
767 @{$config{dirs}} = grep !/^fips$/, @{$config{dirs}};
768 }
769
770 my @tocheckfor = (keys %disabled);
771 while (@tocheckfor) {
772 my %new_tocheckfor = ();
773 my @cascade_copy = (@disable_cascades);
774 while (@cascade_copy) {
775 my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
776 if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
777 foreach(grep { !defined($disabled{$_}) } @$descendents) {
778 $new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
779 }
780 }
781 }
782 @tocheckfor = (keys %new_tocheckfor);
783 }
784
785 if ($target eq "TABLE") {
786 foreach (sort keys %table) {
787 print_table_entry($_, "TABLE");
788 }
789 exit 0;
790 }
791
792 if ($target eq "LIST") {
793 foreach (sort keys %table) {
794 print $_,"\n" unless $table{$_}->{template};
795 }
796 exit 0;
797 }
798
799 if ($target eq "HASH") {
800 print "%table = (\n";
801 foreach (sort keys %table) {
802 print_table_entry($_, "HASH");
803 }
804 exit 0;
805 }
806
807 # Backward compatibility?
808 if ($target =~ m/^CygWin32(-.*)$/) {
809 $target = "Cygwin".$1;
810 }
811
812 foreach (sort (keys %disabled))
813 {
814 $config{options} .= " no-$_";
815
816 printf " no-%-12s %-10s", $_, "[$disabled{$_}]";
817
818 if (/^dso$/)
819 { }
820 elsif (/^threads$/)
821 { }
822 elsif (/^shared$/)
823 { }
824 elsif (/^pic$/)
825 { }
826 elsif (/^zlib$/)
827 { }
828 elsif (/^dynamic-engine$/)
829 { }
830 elsif (/^makedepend$/)
831 { }
832 elsif (/^zlib-dynamic$/)
833 { }
834 elsif (/^sse2$/)
835 { $no_sse2 = 1; }
836 elsif (/^engine$/)
837 {
838 @{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
839 @{$config{sdirs}} = grep !/^engine$/, @{$config{sdirs}};
840 push @{$config{openssl_other_defines}}, "OPENSSL_NO_ENGINE";
841 }
842 else
843 {
844 my ($ALGO, $algo);
845 ($ALGO = $algo = $_) =~ tr/[\-a-z]/[_A-Z]/;
846
847 if (/^asm$/ || /^err$/ || /^hw$/ || /^hw-/ || /^async$/
848 || /^autoalginit/ || /^autoerrinit/)
849 {
850 push @{$config{openssl_other_defines}}, "OPENSSL_NO_$ALGO";
851 print " OPENSSL_NO_$ALGO";
852
853 if (/^err$/) { push @user_defines, "OPENSSL_NO_ERR"; }
854 }
855 else
856 {
857 ($ALGO,$algo) = ("RMD160","rmd160") if ($algo eq "ripemd");
858
859 push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$ALGO";
860 print " OPENSSL_NO_$ALGO";
861
862 # fix-up crypto/directory name(s)
863 $algo="whrlpool" if $algo eq "whirlpool";
864 $algo="ripemd" if $algo eq "rmd160";
865 @{$config{sdirs}} = grep { $_ ne $algo} @{$config{sdirs}};
866
867 print " (skip dir)";
868 }
869 }
870
871 print "\n";
872 }
873
874 print "Configuring for $target\n";
875
876 # Support for legacy targets having a name starting with 'debug-'
877 my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
878 if ($d) {
879 $config{build_type} = "debug";
880
881 # If we do not find debug-foo in the table, the target is set to foo.
882 if (!$table{$target}) {
883 $target = $t;
884 }
885 }
886 $config{target} = $target;
887 my %target = resolve_config($target);
888
889 &usage if (!%target || $target{template});
890
891 %target = ( %{$table{DEFAULTS}}, %target );
892
893 $target{exe_extension}="";
894 $target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
895 || $config{target} =~ /^(?:Cygwin|mingw)/);
896 $target{exe_extension}=".pm" if ($config{target} =~ /vos/);
897
898 ($target{shared_extension_simple}=$target{shared_extension})
899 =~ s|\.\$\(SHLIB_MAJOR\)\.\$\(SHLIB_MINOR\)||;
900 $target{dso_extension}=$target{shared_extension_simple};
901 ($target{shared_import_extension}=$target{shared_extension_simple}.".a")
902 if ($config{target} =~ /^(?:Cygwin|mingw)/);
903
904
905 $config{cross_compile_prefix} = $ENV{'CROSS_COMPILE'}
906 if $config{cross_compile_prefix} eq "";
907
908 # Allow overriding the names of some tools. USE WITH CARE
909 # Note: only Unix cares about HASHBANGPERL... that explains
910 # the default string.
911 $config{perl} = $ENV{'PERL'} || ($^O ne "VMS" ? $^X : "perl");
912 $config{hashbangperl} =
913 $ENV{'HASHBANGPERL'} || $ENV{'PERL'} || "/usr/bin/env perl";
914 $target{cc} = $ENV{'CC'} || $target{cc} || "cc";
915 $target{ranlib} = $ENV{'RANLIB'} || $target{ranlib} ||
916 (which("$config{cross_compile_prefix}ranlib") ?
917 "\$(CROSS_COMPILE)ranlib" : "true");
918 $target{ar} = $ENV{'AR'} || $target{ar} || "ar";
919 $target{nm} = $ENV{'NM'} || $target{nm} || "nm";
920 $target{rc} =
921 $ENV{'RC'} || $ENV{'WINDRES'} || $target{rc} || "windres";
922
923 # Allow overriding the build file name
924 $target{build_file} = $ENV{BUILDFILE} || $target{build_file} || "Makefile";
925
926 # Cache information necessary for reconfiguration
927 $config{cc} = $target{cc};
928 $config{build_file} = $target{build_file};
929
930 # For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
931 # or release_ attributes.
932 # Do it in such a way that no spurious space is appended (hence the grep).
933 $config{defines} = [];
934 $config{cflags} = "";
935 $config{ex_libs} = "";
936 $config{shared_ldflag} = "";
937
938 # Make sure build_scheme is consistent.
939 $target{build_scheme} = [ $target{build_scheme} ]
940 if ref($target{build_scheme}) ne "ARRAY";
941
942 my ($builder, $builder_platform, @builder_opts) =
943 @{$target{build_scheme}};
944
945 push @{$config{defines}}, "NDEBUG" if $config{build_type} eq "release";
946
947 if ($target =~ /^mingw/ && `$target{cc} --target-help 2>&1` =~ m/-mno-cygwin/m)
948 {
949 $config{cflags} .= " -mno-cygwin";
950 $config{shared_ldflag} .= " -mno-cygwin";
951 }
952
953 if ($target =~ /linux.*-mips/ && !$disabled{asm} && $user_cflags !~ /-m(ips|arch=)/) {
954 # minimally required architecture flags for assembly modules
955 $config{cflags}="-mips2 $config{cflags}" if ($target =~ /mips32/);
956 $config{cflags}="-mips3 $config{cflags}" if ($target =~ /mips64/);
957 }
958
959 my $no_shared_warn=0;
960 my $no_user_cflags=0;
961 my $no_user_defines=0;
962
963 # The DSO code currently always implements all functions so that no
964 # applications will have to worry about that from a compilation point
965 # of view. However, the "method"s may return zero unless that platform
966 # has support compiled in for them. Currently each method is enabled
967 # by a define "DSO_<name>" ... we translate the "dso_scheme" config
968 # string entry into using the following logic;
969 if (!$disabled{dso} && $target{dso_scheme} ne "")
970 {
971 $target{dso_scheme} =~ tr/[a-z]/[A-Z]/;
972 if ($target{dso_scheme} eq "DLFCN")
973 {
974 unshift @{$config{defines}}, "DSO_DLFCN", "HAVE_DLFCN_H";
975 }
976 elsif ($target{dso_scheme} eq "DLFCN_NO_H")
977 {
978 unshift @{$config{defines}}, "DSO_DLFCN";
979 }
980 else
981 {
982 unshift @{$config{defines}}, "DSO_$target{dso_scheme}";
983 }
984 }
985
986 $config{ex_libs}="$libs$config{ex_libs}" if ($libs ne "");
987
988 if ($disabled{asm})
989 {
990 if ($config{fips})
991 {
992 @{$config{defines}} = grep !/^[BL]_ENDIAN$/, @{$config{defines}};
993 @{$target{defines}} = grep !/^[BL]_ENDIAN$/, @{$target{defines}};
994 }
995 }
996
997 # If threads aren't disabled, check how possible they are
998 unless ($disabled{threads}) {
999 if ($auto_threads) {
1000 # Enabled by default, disable it forcibly if unavailable
1001 if ($target{thread_scheme} eq "(unknown)") {
1002 $disabled{threads} = "unavailable";
1003 }
1004 } else {
1005 # The user chose to enable threads explicitly, let's see
1006 # if there's a chance that's possible
1007 if ($target{thread_scheme} eq "(unknown)") {
1008 # If the user asked for "threads" and we don't have internal
1009 # knowledge how to do it, [s]he is expected to provide any
1010 # system-dependent compiler options that are necessary. We
1011 # can't truly check that the given options are correct, but
1012 # we expect the user to know what [s]He is doing.
1013 if ($no_user_cflags && $no_user_defines) {
1014 die "You asked for multi-threading support, but didn't\n"
1015 ,"provide any system-specific compiler options\n";
1016 }
1017 }
1018 }
1019 }
1020
1021 # If threads still aren't disabled, add a C macro to ensure the source
1022 # code knows about it. Any other flag is taken care of by the configs.
1023 unless($disabled{threads}) {
1024 foreach (("defines", "openssl_thread_defines")) {
1025 push @{$config{$_}}, "OPENSSL_THREADS";
1026 }
1027 }
1028
1029 # With "deprecated" disable all deprecated features.
1030 if (defined($disabled{"deprecated"})) {
1031 $config{api} = $maxapi;
1032 }
1033
1034 if ($target{shared_target} eq "")
1035 {
1036 $no_shared_warn = 1
1037 if ((!$disabled{shared} || !$disabled{"dynamic-engine"})
1038 && !$config{fips});
1039 $disabled{shared} = "no-shared-target";
1040 $disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
1041 "no-shared-target";
1042 }
1043
1044 if ($disabled{"dynamic-engine"}) {
1045 push @{$config{defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
1046 $config{dynamic_engines} = 0;
1047 } else {
1048 push @{$config{defines}}, "OPENSSL_NO_STATIC_ENGINE";
1049 $config{dynamic_engines} = 1;
1050 }
1051
1052 unless ($disabled{"fuzz-libfuzzer"}) {
1053 $config{cflags} .= "-fsanitize-coverage=edge,indirect-calls ";
1054 }
1055
1056 unless ($disabled{asan}) {
1057 $config{cflags} .= "-fsanitize=address ";
1058 }
1059
1060 unless ($disabled{ubsan}) {
1061 # -DPEDANTIC or -fnosanitize=alignment may also be required on some
1062 # platforms.
1063 $config{cflags} .= "-fsanitize=undefined -fno-sanitize-recover=all ";
1064 }
1065
1066 unless ($disabled{msan}) {
1067 $config{cflags} .= "-fsanitize=memory ";
1068 }
1069
1070 unless ($disabled{"fuzz-libfuzzer"} && $disabled{"fuzz-afl"}
1071 && $disabled{asan} && $disabled{ubsan} && $disabled{msan}) {
1072 $config{cflags} .= "-fno-omit-frame-pointer -g ";
1073 }
1074 #
1075 # Platform fix-ups
1076 #
1077
1078 # This saves the build files from having to check
1079 if ($disabled{pic})
1080 {
1081 $target{shared_cflag} = $target{shared_ldflag} =
1082 $target{shared_rcflag} = "";
1083 }
1084 else
1085 {
1086 push @{$config{defines}}, "OPENSSL_PIC";
1087 }
1088
1089 if ($target{sys_id} ne "")
1090 {
1091 push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1092 }
1093
1094 unless ($disabled{asm}) {
1095 $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1096 $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1097
1098 # bn-586 is the only one implementing bn_*_part_words
1099 push @{$config{defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
1100 push @{$config{defines}}, "OPENSSL_IA32_SSE2" if (!$no_sse2 && $target{bn_asm_src} =~ /86/);
1101
1102 push @{$config{defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
1103 push @{$config{defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
1104 push @{$config{defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1105
1106 if ($config{fips}) {
1107 push @{$config{openssl_other_defines}}, "OPENSSL_FIPS";
1108 }
1109
1110 if ($target{sha1_asm_src}) {
1111 push @{$config{defines}}, "SHA1_ASM" if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
1112 push @{$config{defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
1113 push @{$config{defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1114 }
1115 if ($target{rc4_asm_src} ne $table{DEFAULTS}->{rc4_asm_src}) {
1116 push @{$config{defines}}, "RC4_ASM";
1117 }
1118 if ($target{md5_asm_src}) {
1119 push @{$config{defines}}, "MD5_ASM";
1120 }
1121 $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1122 if ($target{rmd160_asm_src}) {
1123 push @{$config{defines}}, "RMD160_ASM";
1124 }
1125 if ($target{aes_asm_src}) {
1126 push @{$config{defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1127 # aes-ctr.fake is not a real file, only indication that assembler
1128 # module implements AES_ctr32_encrypt...
1129 push @{$config{defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1130 # aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1131 push @{$config{defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1132 $target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($no_sse2);
1133 push @{$config{defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
1134 push @{$config{defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1135 }
1136 if ($target{wp_asm_src} =~ /mmx/) {
1137 if ($config{processor} eq "386") {
1138 $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1139 } elsif (!$disabled{"whirlpool"}) {
1140 push @{$config{defines}}, "WHIRLPOOL_ASM";
1141 }
1142 }
1143 if ($target{modes_asm_src} =~ /ghash-/) {
1144 push @{$config{defines}}, "GHASH_ASM";
1145 }
1146 if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1147 push @{$config{defines}}, "ECP_NISTZ256_ASM";
1148 }
1149 if ($target{poly1305_asm_src} ne "") {
1150 push @{$config{defines}}, "POLY1305_ASM";
1151 }
1152 }
1153
1154 my $ecc = $target{cc};
1155 if ($^O ne "VMS" && !$disabled{makedepend}) {
1156 # Is the compiler gcc or clang? $ecc is used below to see if
1157 # error-checking can be turned on.
1158 my $ccpcc = "$config{cross_compile_prefix}$target{cc}";
1159 open(PIPE, "$ccpcc --version 2>&1 |");
1160 my $lines = 2;
1161 while ( <PIPE> ) {
1162 # Find the version number and save the major.
1163 m|(?:.*)\b(\d+)\.\d+\.\d+\b(?:.*)|;
1164 my $compiler_major = $1;
1165 # We know that GNU C version 3 and up as well as all clang
1166 # versions support dependency generation
1167 $config{makedepprog} = $ccpcc
1168 if (/clang/ || (/gcc/ && $compiler_major > 3));
1169 $ecc = "clang" if /clang/;
1170 $ecc = "gcc" if /gcc/;
1171 last if ($config{makedepprog} || !$lines--);
1172 }
1173 close(PIPE);
1174
1175 $config{makedepprog} = which('makedepend') unless $config{makedepprog};
1176 $disabled{makedepend} = "unavailable" unless $config{makedepprog};
1177 }
1178
1179
1180
1181 # Deal with bn_ops ###################################################
1182
1183 $config{bn_ll} =0;
1184 $config{export_var_as_fn} =0;
1185 my $def_int="unsigned int";
1186 $config{rc4_int} =$def_int;
1187 ($config{b64l},$config{b64},$config{b32})=(0,0,1);
1188
1189 my $count = 0;
1190 foreach (sort split(/\s+/,$target{bn_ops})) {
1191 $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
1192 $config{export_var_as_fn}=1 if $_ eq 'EXPORT_VAR_AS_FN';
1193 $config{bn_ll}=1 if $_ eq 'BN_LLONG';
1194 $config{rc4_int}="unsigned char" if $_ eq 'RC4_CHAR';
1195 ($config{b64l},$config{b64},$config{b32})
1196 =(0,1,0) if $_ eq 'SIXTY_FOUR_BIT';
1197 ($config{b64l},$config{b64},$config{b32})
1198 =(1,0,0) if $_ eq 'SIXTY_FOUR_BIT_LONG';
1199 ($config{b64l},$config{b64},$config{b32})
1200 =(0,0,1) if $_ eq 'THIRTY_TWO_BIT';
1201 }
1202 die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
1203 if $count > 1;
1204
1205
1206 # Hack cflags for better warnings (dev option) #######################
1207
1208 # "Stringify" the C flags string. This permits it to be made part of a string
1209 # and works as well on command lines.
1210 $config{cflags} =~ s/([\\\"])/\\$1/g;
1211
1212 if (defined($config{api})) {
1213 $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1214 my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
1215 push @{$config{defines}}, $apiflag;
1216 }
1217
1218 if ($strict_warnings)
1219 {
1220 my $wopt;
1221 die "ERROR --strict-warnings requires gcc or clang"
1222 unless $ecc eq 'gcc' || $ecc eq 'clang';
1223 foreach $wopt (split /\s+/, $gcc_devteam_warn)
1224 {
1225 $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1226 }
1227 if ($ecc eq "clang")
1228 {
1229 foreach $wopt (split /\s+/, $clang_devteam_warn)
1230 {
1231 $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1232 }
1233 }
1234 }
1235
1236 unless ($disabled{"crypto-mdebug-backtrace"})
1237 {
1238 foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1239 {
1240 $config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1241 }
1242 if ($target =~ /^BSD-/)
1243 {
1244 $config{ex_libs} .= " -lexecinfo";
1245 }
1246 }
1247
1248 if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; }
1249 else { $no_user_cflags=1; }
1250 if (@user_defines) { $config{defines}=[ @{$config{defines}}, @user_defines ]; }
1251 else { $no_user_defines=1; }
1252
1253 # ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON
1254
1255 unless ($disabled{afalgeng}) {
1256 $config{afalgeng}="";
1257 if ($target =~ m/^linux/) {
1258 my $minver = 4*10000 + 1*100 + 0;
1259 if ($config{cross_compile_prefix} eq "") {
1260 my $verstr = `uname -r`;
1261 my ($ma, $mi1, $mi2) = split("\\.", $verstr);
1262 ($mi2) = $mi2 =~ /(\d+)/;
1263 my $ver = $ma*10000 + $mi1*100 + $mi2;
1264 if ($ver < $minver) {
1265 $disabled{afalgeng} = "too-old-kernel";
1266 } else {
1267 push @{$config{engdirs}}, "afalg";
1268 }
1269 } else {
1270 $disabled{afalgeng} = "cross-compiling";
1271 }
1272 } else {
1273 $disabled{afalgeng} = "not-linux";
1274 }
1275 }
1276
1277 push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
1278
1279 # If we use the unified build, collect information from build.info files
1280 my %unified_info = ();
1281
1282 my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1283 if ($builder eq "unified") {
1284 # Store the name of the template file we will build the build file from
1285 # in %config. This may be useful for the build file itself.
1286 my $build_file_template;
1287
1288 for my $filename (( $builder_platform."-".$target{build_file}.".tmpl",
1289 $target{build_file}.".tmpl" )) {
1290 if (defined $ENV{$local_config_envname}) {
1291 if ($^O eq 'VMS') {
1292 # VMS environment variables are logical names,
1293 # which can be used as is
1294 $build_file_template = $local_config_envname . ':' . $filename;
1295 } else {
1296 $build_file_template = catfile($ENV{$local_config_envname},
1297 $filename);
1298 }
1299 }
1300
1301 last if -f $build_file_template;
1302
1303 $build_file_template = catfile($srcdir, "Configurations", $filename);
1304
1305 last if -f $build_file_template;
1306 }
1307 $config{build_file_template} = $build_file_template;
1308
1309 use lib catdir(dirname(__FILE__),"util");
1310 use with_fallback qw(Text::Template);
1311
1312 sub cleandir {
1313 my $base = shift;
1314 my $dir = shift;
1315 my $relativeto = shift || ".";
1316
1317 $dir = catdir($base,$dir) unless isabsolute($dir);
1318
1319 # Make sure the directories we're building in exists
1320 mkpath($dir);
1321
1322 my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1323 #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
1324 return $res;
1325 }
1326
1327 sub cleanfile {
1328 my $base = shift;
1329 my $file = shift;
1330 my $relativeto = shift || ".";
1331
1332 $file = catfile($base,$file) unless isabsolute($file);
1333
1334 my $d = dirname($file);
1335 my $f = basename($file);
1336
1337 # Make sure the directories we're building in exists
1338 mkpath($d);
1339
1340 my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1341 #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
1342 return $res;
1343 }
1344
1345 my @build_infos = ( [ ".", "build.info" ] );
1346 foreach (@{$config{dirs}}) {
1347 push @build_infos, [ $_, "build.info" ]
1348 if (-f catfile($srcdir, $_, "build.info"));
1349 }
1350 foreach (@{$config{sdirs}}) {
1351 push @build_infos, [ catdir("crypto", $_), "build.info" ]
1352 if (-f catfile($srcdir, "crypto", $_, "build.info"));
1353 }
1354 foreach (@{$config{engdirs}}) {
1355 push @build_infos, [ catdir("engines", $_), "build.info" ]
1356 if (-f catfile($srcdir, "engines", $_, "build.info"));
1357 }
1358
1359 $config{build_infos} = [ ];
1360
1361 foreach (@build_infos) {
1362 my $sourced = catdir($srcdir, $_->[0]);
1363 my $buildd = catdir($blddir, $_->[0]);
1364
1365 mkpath($buildd);
1366
1367 my $f = $_->[1];
1368 # The basic things we're trying to build
1369 my @programs = ();
1370 my @programs_install = ();
1371 my @libraries = ();
1372 my @libraries_install = ();
1373 my @engines = ();
1374 my @engines_install = ();
1375 my @scripts = ();
1376 my @scripts_install = ();
1377 my @extra = ();
1378 my @overrides = ();
1379 my @intermediates = ();
1380 my @rawlines = ();
1381
1382 my %ordinals = ();
1383 my %sources = ();
1384 my %shared_sources = ();
1385 my %includes = ();
1386 my %depends = ();
1387 my %renames = ();
1388 my %sharednames = ();
1389 my %generate = ();
1390
1391 push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1392 my $template = Text::Template->new(TYPE => 'FILE',
1393 SOURCE => catfile($sourced, $f));
1394 die "Something went wrong with $sourced/$f: $!\n" unless $template;
1395 my @text =
1396 split /^/m,
1397 $template->fill_in(HASH => { config => \%config,
1398 target => \%target,
1399 disabled => \%disabled,
1400 withargs => \%withargs,
1401 builddir => abs2rel($buildd, $blddir),
1402 sourcedir => abs2rel($sourced, $blddir),
1403 buildtop => abs2rel($blddir, $blddir),
1404 sourcetop => abs2rel($srcdir, $blddir) },
1405 DELIMITERS => [ "{-", "-}" ]);
1406
1407 # The top item of this stack has the following values
1408 # -2 positive already run and we found ELSE (following ELSIF should fail)
1409 # -1 positive already run (skip until ENDIF)
1410 # 0 negatives so far (if we're at a condition, check it)
1411 # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
1412 # 2 positive ELSE (following ELSIF should fail)
1413 my @skip = ();
1414 collect_information(
1415 collect_from_array([ @text ],
1416 qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
1417 $l1 =~ s/\\$//; $l1.$l2 }),
1418 # Info we're looking for
1419 qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1420 => sub {
1421 if (! @skip || $skip[$#skip] > 0) {
1422 push @skip, !! $1;
1423 } else {
1424 push @skip, -1;
1425 }
1426 },
1427 qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
1428 => sub { die "ELSIF out of scope" if ! @skip;
1429 die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
1430 $skip[$#skip] = -1 if $skip[$#skip] != 0;
1431 $skip[$#skip] = !! $1
1432 if $skip[$#skip] == 0; },
1433 qr/^\s*ELSE\s*$/
1434 => sub { die "ELSE out of scope" if ! @skip;
1435 $skip[$#skip] = -2 if $skip[$#skip] != 0;
1436 $skip[$#skip] = 2 if $skip[$#skip] == 0; },
1437 qr/^\s*ENDIF\s*$/
1438 => sub { die "ENDIF out of scope" if ! @skip;
1439 pop @skip; },
1440 qr/^\s*PROGRAMS(_NO_INST)?\s*=\s*(.*)\s*$/
1441 => sub {
1442 if (!@skip || $skip[$#skip] > 0) {
1443 my $install = $1;
1444 my @x = tokenize($2);
1445 push @programs, @x;
1446 push @programs_install, @x unless $install;
1447 }
1448 },
1449 qr/^\s*LIBS(_NO_INST)?\s*=\s*(.*)\s*$/
1450 => sub {
1451 if (!@skip || $skip[$#skip] > 0) {
1452 my $install = $1;
1453 my @x = tokenize($2);
1454 push @libraries, @x;
1455 push @libraries_install, @x unless $install;
1456 }
1457 },
1458 qr/^\s*ENGINES(_NO_INST)?\s*=\s*(.*)\s*$/
1459 => sub {
1460 if (!@skip || $skip[$#skip] > 0) {
1461 my $install = $1;
1462 my @x = tokenize($2);
1463 push @engines, @x;
1464 push @engines_install, @x unless $install;
1465 }
1466 },
1467 qr/^\s*SCRIPTS(_NO_INST)?\s*=\s*(.*)\s*$/
1468 => sub {
1469 if (!@skip || $skip[$#skip] > 0) {
1470 my $install = $1;
1471 my @x = tokenize($2);
1472 push @scripts, @x;
1473 push @scripts_install, @x unless $install;
1474 }
1475 },
1476 qr/^\s*EXTRA\s*=\s*(.*)\s*$/
1477 => sub { push @extra, tokenize($1)
1478 if !@skip || $skip[$#skip] > 0 },
1479 qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
1480 => sub { push @overrides, tokenize($1)
1481 if !@skip || $skip[$#skip] > 0 },
1482
1483 qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
1484 => sub { push @{$ordinals{$1}}, tokenize($2)
1485 if !@skip || $skip[$#skip] > 0 },
1486 qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1487 => sub { push @{$sources{$1}}, tokenize($2)
1488 if !@skip || $skip[$#skip] > 0 },
1489 qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1490 => sub { push @{$shared_sources{$1}}, tokenize($2)
1491 if !@skip || $skip[$#skip] > 0 },
1492 qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1493 => sub { push @{$includes{$1}}, tokenize($2)
1494 if !@skip || $skip[$#skip] > 0 },
1495 qr/^\s*DEPEND\[((?:\\.|[^\\\]])*)\]\s*=\s*(.*)\s*$/
1496 => sub { push @{$depends{$1}}, tokenize($2)
1497 if !@skip || $skip[$#skip] > 0 },
1498 qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1499 => sub { push @{$generate{$1}}, $2
1500 if !@skip || $skip[$#skip] > 0 },
1501 qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1502 => sub { push @{$renames{$1}}, tokenize($2)
1503 if !@skip || $skip[$#skip] > 0 },
1504 qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
1505 => sub { push @{$sharednames{$1}}, tokenize($2)
1506 if !@skip || $skip[$#skip] > 0 },
1507 qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
1508 => sub {
1509 my $lineiterator = shift;
1510 my $target_kind = $1;
1511 while (defined $lineiterator->()) {
1512 s|\R$||;
1513 if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
1514 die "ENDRAW doesn't match BEGINRAW"
1515 if $1 ne $target_kind;
1516 last;
1517 }
1518 next if @skip && $skip[$#skip] <= 0;
1519 push @rawlines, $_
1520 if ($target_kind eq $target{build_file}
1521 || $target_kind eq $target{build_file}."(".$builder_platform.")");
1522 }
1523 },
1524 qr/^(?:#.*|\s*)$/ => sub { },
1525 "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
1526 "BEFORE" => sub {
1527 if ($buildinfo_debug) {
1528 print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
1529 print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1530 }
1531 },
1532 "AFTER" => sub {
1533 if ($buildinfo_debug) {
1534 print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
1535 }
1536 },
1537 );
1538 die "runaway IF?" if (@skip);
1539
1540 foreach (keys %renames) {
1541 die "$_ renamed to more than one thing: "
1542 ,join(" ", @{$renames{$_}}),"\n"
1543 if scalar @{$renames{$_}} > 1;
1544 my $dest = cleanfile($buildd, $_, $blddir);
1545 my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1546 die "$dest renamed to more than one thing: "
1547 ,$unified_info{rename}->{$dest}, $to
1548 unless !defined($unified_info{rename}->{$dest})
1549 or $unified_info{rename}->{$dest} eq $to;
1550 $unified_info{rename}->{$dest} = $to;
1551 }
1552
1553 foreach (@programs) {
1554 my $program = cleanfile($buildd, $_, $blddir);
1555 if ($unified_info{rename}->{$program}) {
1556 $program = $unified_info{rename}->{$program};
1557 }
1558 $unified_info{programs}->{$program} = 1;
1559 }
1560
1561 foreach (@programs_install) {
1562 my $program = cleanfile($buildd, $_, $blddir);
1563 if ($unified_info{rename}->{$program}) {
1564 $program = $unified_info{rename}->{$program};
1565 }
1566 $unified_info{install}->{programs}->{$program} = 1;
1567 }
1568
1569 foreach (@libraries) {
1570 my $library = cleanfile($buildd, $_, $blddir);
1571 if ($unified_info{rename}->{$library}) {
1572 $library = $unified_info{rename}->{$library};
1573 }
1574 $unified_info{libraries}->{$library} = 1;
1575 }
1576
1577 foreach (@libraries_install) {
1578 my $library = cleanfile($buildd, $_, $blddir);
1579 if ($unified_info{rename}->{$library}) {
1580 $library = $unified_info{rename}->{$library};
1581 }
1582 $unified_info{install}->{libraries}->{$library} = 1;
1583 }
1584
1585 die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1586 ENGINES can only be used if configured with 'dynamic-engine'.
1587 This is usually a fault in a build.info file.
1588 EOF
1589 foreach (@engines) {
1590 my $library = cleanfile($buildd, $_, $blddir);
1591 if ($unified_info{rename}->{$library}) {
1592 $library = $unified_info{rename}->{$library};
1593 }
1594 $unified_info{engines}->{$library} = 1;
1595 }
1596
1597 foreach (@engines_install) {
1598 my $library = cleanfile($buildd, $_, $blddir);
1599 if ($unified_info{rename}->{$library}) {
1600 $library = $unified_info{rename}->{$library};
1601 }
1602 $unified_info{install}->{engines}->{$library} = 1;
1603 }
1604
1605 foreach (@scripts) {
1606 my $script = cleanfile($buildd, $_, $blddir);
1607 if ($unified_info{rename}->{$script}) {
1608 $script = $unified_info{rename}->{$script};
1609 }
1610 $unified_info{scripts}->{$script} = 1;
1611 }
1612
1613 foreach (@scripts_install) {
1614 my $script = cleanfile($buildd, $_, $blddir);
1615 if ($unified_info{rename}->{$script}) {
1616 $script = $unified_info{rename}->{$script};
1617 }
1618 $unified_info{install}->{scripts}->{$script} = 1;
1619 }
1620
1621 foreach (@extra) {
1622 my $extra = cleanfile($buildd, $_, $blddir);
1623 $unified_info{extra}->{$extra} = 1;
1624 }
1625
1626 foreach (@overrides) {
1627 my $override = cleanfile($buildd, $_, $blddir);
1628 $unified_info{overrides}->{$override} = 1;
1629 }
1630
1631 push @{$unified_info{rawlines}}, @rawlines;
1632
1633 unless ($disabled{shared}) {
1634 # Check sharednames.
1635 foreach (keys %sharednames) {
1636 my $dest = cleanfile($buildd, $_, $blddir);
1637 if ($unified_info{rename}->{$dest}) {
1638 $dest = $unified_info{rename}->{$dest};
1639 }
1640 die "shared_name for $dest with multiple values: "
1641 ,join(" ", @{$sharednames{$_}}),"\n"
1642 if scalar @{$sharednames{$_}} > 1;
1643 my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1644 die "shared_name found for a library $dest that isn't defined\n"
1645 unless $unified_info{libraries}->{$dest};
1646 die "shared_name for $dest with multiple values: "
1647 ,$unified_info{sharednames}->{$dest}, ", ", $to
1648 unless !defined($unified_info{sharednames}->{$dest})
1649 or $unified_info{sharednames}->{$dest} eq $to;
1650 $unified_info{sharednames}->{$dest} = $to;
1651 }
1652
1653 # Additionally, we set up sharednames for libraries that don't
1654 # have any, as themselves.
1655 foreach (keys %{$unified_info{libraries}}) {
1656 if (!defined $unified_info{sharednames}->{$_}) {
1657 $unified_info{sharednames}->{$_} = $_
1658 }
1659 }
1660 }
1661
1662 foreach (keys %ordinals) {
1663 my $dest = $_;
1664 my $ddest = cleanfile($buildd, $_, $blddir);
1665 if ($unified_info{rename}->{$ddest}) {
1666 $ddest = $unified_info{rename}->{$ddest};
1667 }
1668 foreach (@{$ordinals{$dest}}) {
1669 my %known_ordinals =
1670 (
1671 crypto =>
1672 cleanfile($sourced, catfile("util", "libcrypto.num"), $blddir),
1673 ssl =>
1674 cleanfile($sourced, catfile("util", "libssl.num"), $blddir)
1675 );
1676 my $o = $known_ordinals{$_};
1677 die "Ordinals for $ddest defined more than once\n"
1678 if $unified_info{ordinals}->{$ddest};
1679 $unified_info{ordinals}->{$ddest} = [ $_, $o ];
1680 }
1681 }
1682
1683 foreach (keys %sources) {
1684 my $dest = $_;
1685 my $ddest = cleanfile($buildd, $_, $blddir);
1686 if ($unified_info{rename}->{$ddest}) {
1687 $ddest = $unified_info{rename}->{$ddest};
1688 }
1689 foreach (@{$sources{$dest}}) {
1690 my $s = cleanfile($sourced, $_, $blddir);
1691
1692 # If it isn't in the source tree, we assume it's generated
1693 # in the build tree
1694 if (! -f $s) {
1695 $s = cleanfile($buildd, $_, $blddir);
1696 }
1697 # We recognise C and asm files
1698 if ($s =~ /\.[csS]\b$/) {
1699 (my $o = $_) =~ s/\.[csS]\b$/.o/;
1700 $o = cleanfile($buildd, $o, $blddir);
1701 $unified_info{sources}->{$ddest}->{$o} = 1;
1702 $unified_info{sources}->{$o}->{$s} = 1;
1703 } else {
1704 $unified_info{sources}->{$ddest}->{$s} = 1;
1705 }
1706 }
1707 }
1708
1709 foreach (keys %shared_sources) {
1710 my $dest = $_;
1711 my $ddest = cleanfile($buildd, $_, $blddir);
1712 if ($unified_info{rename}->{$ddest}) {
1713 $ddest = $unified_info{rename}->{$ddest};
1714 }
1715 foreach (@{$shared_sources{$dest}}) {
1716 my $s = cleanfile($sourced, $_, $blddir);
1717
1718 # If it isn't in the source tree, we assume it's generated
1719 # in the build tree
1720 if (! -f $s) {
1721 $s = cleanfile($buildd, $_, $blddir);
1722 }
1723 # We recognise C and asm files
1724 if ($s =~ /\.[csS]\b$/) {
1725 (my $o = $_) =~ s/\.[csS]\b$/.o/;
1726 $o = cleanfile($buildd, $o, $blddir);
1727 $unified_info{shared_sources}->{$ddest}->{$o} = 1;
1728 $unified_info{sources}->{$o}->{$s} = 1;
1729 } else {
1730 die "unrecognised source file type for shared library: $s\n";
1731 }
1732 }
1733 }
1734
1735 foreach (keys %generate) {
1736 my $dest = $_;
1737 my $ddest = cleanfile($buildd, $_, $blddir);
1738 if ($unified_info{rename}->{$ddest}) {
1739 $ddest = $unified_info{rename}->{$ddest};
1740 }
1741 die "more than one generator for $dest: "
1742 ,join(" ", @{$generate{$_}}),"\n"
1743 if scalar @{$generate{$_}} > 1;
1744 my @generator = split /\s+/, $generate{$dest}->[0];
1745 $generator[0] = cleanfile($sourced, $generator[0], $blddir),
1746 $unified_info{generate}->{$ddest} = [ @generator ];
1747 }
1748
1749 foreach (keys %depends) {
1750 my $dest = $_;
1751 my $ddest = $dest eq "" ? "" : cleanfile($sourced, $_, $blddir);
1752
1753 # If the destination doesn't exist in source, it can only be
1754 # a generated file in the build tree.
1755 if ($ddest ne "" && ! -f $ddest) {
1756 $ddest = cleanfile($buildd, $_, $blddir);
1757 if ($unified_info{rename}->{$ddest}) {
1758 $ddest = $unified_info{rename}->{$ddest};
1759 }
1760 }
1761 foreach (@{$depends{$dest}}) {
1762 my $d = cleanfile($sourced, $_, $blddir);
1763
1764 # If we know it's generated, or assume it is because we can't
1765 # find it in the source tree, we set file we depend on to be
1766 # in the build tree rather than the source tree, and assume
1767 # and that there are lines to build it in a BEGINRAW..ENDRAW
1768 # section or in the Makefile template.
1769 if (! -f $d
1770 || (grep { $d eq $_ }
1771 map { cleanfile($srcdir, $_, $blddir) }
1772 grep { /\.h$/ } keys %{$unified_info{generate}})) {
1773 $d = cleanfile($buildd, $_, $blddir);
1774 }
1775 # Take note if the file to depend on is being renamed
1776 if ($unified_info{rename}->{$d}) {
1777 $d = $unified_info{rename}->{$d};
1778 }
1779 $unified_info{depends}->{$ddest}->{$d} = 1;
1780 # If we depend on a header file or a perl module, let's make
1781 # sure it can get included
1782 if ($dest ne "" && $d =~ /\.(h|pm)$/) {
1783 my $i = dirname($d);
1784 push @{$unified_info{includes}->{$ddest}->{source}}, $i
1785 unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}->{source}};
1786 }
1787 }
1788 }
1789
1790 foreach (keys %includes) {
1791 my $dest = $_;
1792 my $ddest = cleanfile($sourced, $_, $blddir);
1793
1794 # If the destination doesn't exist in source, it can only be
1795 # a generated file in the build tree.
1796 if (! -f $ddest) {
1797 $ddest = cleanfile($buildd, $_, $blddir);
1798 if ($unified_info{rename}->{$ddest}) {
1799 $ddest = $unified_info{rename}->{$ddest};
1800 }
1801 }
1802 foreach (@{$includes{$dest}}) {
1803 my $is = cleandir($sourced, $_, $blddir);
1804 my $ib = cleandir($buildd, $_, $blddir);
1805 push @{$unified_info{includes}->{$ddest}->{source}}, $is
1806 unless grep { $_ eq $is } @{$unified_info{includes}->{$ddest}->{source}};
1807 push @{$unified_info{includes}->{$ddest}->{build}}, $ib
1808 unless grep { $_ eq $ib } @{$unified_info{includes}->{$ddest}->{build}};
1809 }
1810 }
1811 }
1812
1813 ### Make unified_info a bit more efficient
1814 # One level structures
1815 foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
1816 $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
1817 }
1818 # Two level structures
1819 foreach my $l1 (("install", "sources", "shared_sources", "ldadd", "depends")) {
1820 foreach my $l2 (sort keys %{$unified_info{$l1}}) {
1821 $unified_info{$l1}->{$l2} =
1822 [ sort keys %{$unified_info{$l1}->{$l2}} ];
1823 }
1824 }
1825 # Includes
1826 foreach my $dest (sort keys %{$unified_info{includes}}) {
1827 if (defined($unified_info{includes}->{$dest}->{build})) {
1828 my @source_includes =
1829 ( @{$unified_info{includes}->{$dest}->{source}} );
1830 $unified_info{includes}->{$dest} =
1831 [ @{$unified_info{includes}->{$dest}->{build}} ];
1832 foreach my $inc (@source_includes) {
1833 push @{$unified_info{includes}->{$dest}}, $inc
1834 unless grep { $_ eq $inc } @{$unified_info{includes}->{$dest}};
1835 }
1836 } else {
1837 $unified_info{includes}->{$dest} =
1838 [ @{$unified_info{includes}->{$dest}->{source}} ];
1839 }
1840 }
1841 }
1842
1843 # For the schemes that need it, we provide the old *_obj configs
1844 # from the *_asm_obj ones
1845 foreach (grep /_(asm|aux)_src$/, keys %target) {
1846 my $src = $_;
1847 (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
1848 ($target{$obj} = $target{$src}) =~ s/\.[csS]\b/.o/g;
1849 }
1850
1851 # Write down our configuration where it fits #########################
1852
1853 open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
1854 print OUT <<"EOF";
1855 package configdata;
1856
1857 use strict;
1858 use warnings;
1859
1860 use Exporter;
1861 #use vars qw(\@ISA \@EXPORT);
1862 our \@ISA = qw(Exporter);
1863 our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
1864
1865 EOF
1866 print OUT "our %config = (\n";
1867 foreach (sort keys %config) {
1868 if (ref($config{$_}) eq "ARRAY") {
1869 print OUT " ", $_, " => [ ", join(", ",
1870 map { quotify("perl", $_) }
1871 @{$config{$_}}), " ],\n";
1872 } else {
1873 print OUT " ", $_, " => ", quotify("perl", $config{$_}), ",\n"
1874 }
1875 }
1876 print OUT <<"EOF";
1877 );
1878
1879 EOF
1880 print OUT "our %target = (\n";
1881 foreach (sort keys %target) {
1882 if (ref($target{$_}) eq "ARRAY") {
1883 print OUT " ", $_, " => [ ", join(", ",
1884 map { quotify("perl", $_) }
1885 @{$target{$_}}), " ],\n";
1886 } else {
1887 print OUT " ", $_, " => ", quotify("perl", $target{$_}), ",\n"
1888 }
1889 }
1890 print OUT <<"EOF";
1891 );
1892
1893 EOF
1894 print OUT "our \%available_protocols = (\n";
1895 print OUT " tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
1896 print OUT " dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
1897 print OUT <<"EOF";
1898 );
1899
1900 EOF
1901 print OUT "our \@disablables = (\n";
1902 foreach (@disablables) {
1903 print OUT " ", quotify("perl", $_), ",\n";
1904 }
1905 print OUT <<"EOF";
1906 );
1907
1908 EOF
1909 print OUT "our \%disabled = (\n";
1910 foreach (sort keys %disabled) {
1911 print OUT " ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
1912 }
1913 print OUT <<"EOF";
1914 );
1915
1916 EOF
1917 print OUT "our %withargs = (\n";
1918 foreach (sort keys %withargs) {
1919 if (ref($withargs{$_}) eq "ARRAY") {
1920 print OUT " ", $_, " => [ ", join(", ",
1921 map { quotify("perl", $_) }
1922 @{$withargs{$_}}), " ],\n";
1923 } else {
1924 print OUT " ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
1925 }
1926 }
1927 print OUT <<"EOF";
1928 );
1929
1930 EOF
1931 if ($builder eq "unified") {
1932 my $recurse;
1933 $recurse = sub {
1934 my $indent = shift;
1935 foreach (@_) {
1936 if (ref $_ eq "ARRAY") {
1937 print OUT " "x$indent, "[\n";
1938 foreach (@$_) {
1939 $recurse->($indent + 4, $_);
1940 }
1941 print OUT " "x$indent, "],\n";
1942 } elsif (ref $_ eq "HASH") {
1943 my %h = %$_;
1944 print OUT " "x$indent, "{\n";
1945 foreach (sort keys %h) {
1946 if (ref $h{$_} eq "") {
1947 print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
1948 } else {
1949 print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
1950 $recurse->($indent + 8, $h{$_});
1951 }
1952 }
1953 print OUT " "x$indent, "},\n";
1954 } else {
1955 print OUT " "x$indent, quotify("perl", $_), ",\n";
1956 }
1957 }
1958 };
1959 print OUT "our %unified_info = (\n";
1960 foreach (sort keys %unified_info) {
1961 if (ref $unified_info{$_} eq "") {
1962 print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
1963 } else {
1964 print OUT " "x4, quotify("perl", $_), " =>\n";
1965 $recurse->(8, $unified_info{$_});
1966 }
1967 }
1968 print OUT <<"EOF";
1969 );
1970
1971 EOF
1972 }
1973 print OUT "1;\n";
1974 close(OUT);
1975
1976
1977 print "CC =$config{cross_compile_prefix}$target{cc}\n";
1978 print "CFLAG =$target{cflags} $config{cflags}\n";
1979 print "SHARED_CFLAG =$target{shared_cflag}\n";
1980 print "DEFINES =",join(" ", @{$target{defines}}, @{$config{defines}}),"\n";
1981 print "LFLAG =$target{lflags}\n";
1982 print "PLIB_LFLAG =$target{plib_lflags}\n";
1983 print "EX_LIBS =$target{ex_libs} $config{ex_libs}\n";
1984 print "APPS_OBJ =$target{apps_obj}\n";
1985 print "CPUID_OBJ =$target{cpuid_obj}\n";
1986 print "UPLINK_OBJ =$target{uplink_obj}\n";
1987 print "BN_ASM =$target{bn_obj}\n";
1988 print "EC_ASM =$target{ec_obj}\n";
1989 print "DES_ENC =$target{des_obj}\n";
1990 print "AES_ENC =$target{aes_obj}\n";
1991 print "BF_ENC =$target{bf_obj}\n";
1992 print "CAST_ENC =$target{cast_obj}\n";
1993 print "RC4_ENC =$target{rc4_obj}\n";
1994 print "RC5_ENC =$target{rc5_obj}\n";
1995 print "MD5_OBJ_ASM =$target{md5_obj}\n";
1996 print "SHA1_OBJ_ASM =$target{sha1_obj}\n";
1997 print "RMD160_OBJ_ASM=$target{rmd160_obj}\n";
1998 print "CMLL_ENC =$target{cmll_obj}\n";
1999 print "MODES_OBJ =$target{modes_obj}\n";
2000 print "PADLOCK_OBJ =$target{padlock_obj}\n";
2001 print "CHACHA_ENC =$target{chacha_obj}\n";
2002 print "POLY1305_OBJ =$target{poly1305_obj}\n";
2003 print "BLAKE2_OBJ =$target{blake2_obj}\n";
2004 print "PROCESSOR =$config{processor}\n";
2005 print "RANLIB =", $target{ranlib} eq '$(CROSS_COMPILE)ranlib' ?
2006 "$config{cross_compile_prefix}ranlib" :
2007 "$target{ranlib}", "\n";
2008 print "ARFLAGS =$target{arflags}\n";
2009 print "PERL =$config{perl}\n";
2010 print "\n";
2011 print "SIXTY_FOUR_BIT_LONG mode\n" if $config{b64l};
2012 print "SIXTY_FOUR_BIT mode\n" if $config{b64};
2013 print "THIRTY_TWO_BIT mode\n" if $config{b32};
2014 print "BN_LLONG mode\n" if $config{bn_ll};
2015 print "RC4 uses $config{rc4_int}\n" if $config{rc4_int} ne $def_int;
2016
2017 my %builders = (
2018 unified => sub {
2019 run_dofile(catfile($blddir, $target{build_file}),
2020 $config{build_file_template},
2021 catfile($srcdir, "Configurations", "common.tmpl"));
2022 },
2023 );
2024
2025 $builders{$builder}->($builder_platform, @builder_opts);
2026
2027 print <<"EOF";
2028
2029 Configured for $target.
2030 EOF
2031
2032 print <<"EOF" if ($disabled{threads} eq "unavailable");
2033
2034 The library could not be configured for supporting multi-threaded
2035 applications as the compiler options required on this system are not known.
2036 See file INSTALL for details if you need multi-threading.
2037 EOF
2038
2039 print <<"EOF" if ($no_shared_warn);
2040
2041 The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
2042 platform, so we will pretend you gave the option 'no-pic', which also disables
2043 'shared' and 'dynamic-engine'. If you know how to implement shared libraries
2044 or position independent code, please let us know (but please first make sure
2045 you have tried with a current version of OpenSSL).
2046 EOF
2047
2048 print <<"EOF" if (-f catfile($srcdir, "configdata.pm") && $srcdir ne $blddir);
2049
2050 WARNING: there are indications that another build was made in the source
2051 directory. This build may have picked up artifacts from that build, the
2052 safest course of action is to clean the source directory and redo this
2053 configuration.
2054 EOF
2055
2056 exit(0);
2057
2058 ######################################################################
2059 #
2060 # Helpers and utility functions
2061 #
2062
2063 # Configuration file reading #########################################
2064
2065 # Note: All of the helper functions are for lazy evaluation. They all
2066 # return a CODE ref, which will return the intended value when evaluated.
2067 # Thus, whenever there's mention of a returned value, it's about that
2068 # intended value.
2069
2070 # Helper function to implement conditional inheritance depending on the
2071 # value of $disabled{asm}. Used in inherit_from values as follows:
2072 #
2073 # inherit_from => [ "template", asm("asm_tmpl") ]
2074 #
2075 sub asm {
2076 my @x = @_;
2077 sub {
2078 $disabled{asm} ? () : @x;
2079 }
2080 }
2081
2082 # Helper function to implement conditional value variants, with a default
2083 # plus additional values based on the value of $config{build_type}.
2084 # Arguments are given in hash table form:
2085 #
2086 # picker(default => "Basic string: ",
2087 # debug => "debug",
2088 # release => "release")
2089 #
2090 # When configuring with --debug, the resulting string will be
2091 # "Basic string: debug", and when not, it will be "Basic string: release"
2092 #
2093 # This can be used to create variants of sets of flags according to the
2094 # build type:
2095 #
2096 # cflags => picker(default => "-Wall",
2097 # debug => "-g -O0",
2098 # release => "-O3")
2099 #
2100 sub picker {
2101 my %opts = @_;
2102 return sub { add($opts{default} || (),
2103 $opts{$config{build_type}} || ())->(); }
2104 }
2105
2106 # Helper function to combine several values of different types into one.
2107 # This is useful if you want to combine a string with the result of a
2108 # lazy function, such as:
2109 #
2110 # cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
2111 #
2112 sub combine {
2113 my @stuff = @_;
2114 return sub { add(@stuff)->(); }
2115 }
2116
2117 # Helper function to implement conditional values depending on the value
2118 # of $disabled{threads}. Can be used as follows:
2119 #
2120 # cflags => combine("-Wall", threads("-pthread"))
2121 #
2122 sub threads {
2123 my @flags = @_;
2124 return sub { add($disabled{threads} ? () : @flags)->(); }
2125 }
2126
2127
2128
2129 our $add_called = 0;
2130 # Helper function to implement adding values to already existing configuration
2131 # values. It handles elements that are ARRAYs, CODEs and scalars
2132 sub _add {
2133 my $separator = shift;
2134
2135 # If there's any ARRAY in the collection of values OR the separator
2136 # is undef, we will return an ARRAY of combined values, otherwise a
2137 # string of joined values with $separator as the separator.
2138 my $found_array = !defined($separator);
2139
2140 my @values =
2141 map {
2142 my $res = $_;
2143 while (ref($res) eq "CODE") {
2144 $res = $res->();
2145 }
2146 if (defined($res)) {
2147 if (ref($res) eq "ARRAY") {
2148 $found_array = 1;
2149 @$res;
2150 } else {
2151 $res;
2152 }
2153 } else {
2154 ();
2155 }
2156 } (@_);
2157
2158 $add_called = 1;
2159
2160 if ($found_array) {
2161 [ @values ];
2162 } else {
2163 join($separator, grep { defined($_) && $_ ne "" } @values);
2164 }
2165 }
2166 sub add_before {
2167 my $separator = " ";
2168 if (ref($_[$#_]) eq "HASH") {
2169 my $opts = pop;
2170 $separator = $opts->{separator};
2171 }
2172 my @x = @_;
2173 sub { _add($separator, @x, @_) };
2174 }
2175 sub add {
2176 my $separator = " ";
2177 if (ref($_[$#_]) eq "HASH") {
2178 my $opts = pop;
2179 $separator = $opts->{separator};
2180 }
2181 my @x = @_;
2182 sub { _add($separator, @_, @x) };
2183 }
2184
2185 # configuration reader, evaluates the input file as a perl script and expects
2186 # it to fill %targets with target configurations. Those are then added to
2187 # %table.
2188 sub read_config {
2189 my $fname = shift;
2190 open(CONFFILE, "< $fname")
2191 or die "Can't open configuration file '$fname'!\n";
2192 my $x = $/;
2193 undef $/;
2194 my $content = <CONFFILE>;
2195 $/ = $x;
2196 close(CONFFILE);
2197 my %targets = ();
2198 {
2199 local %table = %::table; # Protect %table from tampering
2200
2201 eval $content;
2202 warn $@ if $@;
2203 }
2204
2205 # For each target, check that it's configured with a hash table.
2206 foreach (keys %targets) {
2207 if (ref($targets{$_}) ne "HASH") {
2208 if (ref($targets{$_}) eq "") {
2209 warn "Deprecated target configuration for $_, ignoring...\n";
2210 } else {
2211 warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
2212 }
2213 delete $targets{$_};
2214 }
2215 }
2216
2217 %table = (%table, %targets);
2218
2219 }
2220
2221 # configuration resolver. Will only resolve all the lazy evaluation
2222 # codeblocks for the chosen target and all those it inherits from,
2223 # recursively
2224 sub resolve_config {
2225 my $target = shift;
2226 my @breadcrumbs = @_;
2227
2228 # my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2229
2230 if (grep { $_ eq $target } @breadcrumbs) {
2231 die "inherit_from loop! target backtrace:\n "
2232 ,$target,"\n ",join("\n ", @breadcrumbs),"\n";
2233 }
2234
2235 if (!defined($table{$target})) {
2236 warn "Warning! target $target doesn't exist!\n";
2237 return ();
2238 }
2239 # Recurse through all inheritances. They will be resolved on the
2240 # fly, so when this operation is done, they will all just be a
2241 # bunch of attributes with string values.
2242 # What we get here, though, are keys with references to lists of
2243 # the combined values of them all. We will deal with lists after
2244 # this stage is done.
2245 my %combined_inheritance = ();
2246 if ($table{$target}->{inherit_from}) {
2247 my @inherit_from =
2248 map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
2249 foreach (@inherit_from) {
2250 my %inherited_config = resolve_config($_, $target, @breadcrumbs);
2251
2252 # 'template' is a marker that's considered private to
2253 # the config that had it.
2254 delete $inherited_config{template};
2255
2256 foreach (keys %inherited_config) {
2257 if (!$combined_inheritance{$_}) {
2258 $combined_inheritance{$_} = [];
2259 }
2260 push @{$combined_inheritance{$_}}, $inherited_config{$_};
2261 }
2262 }
2263 }
2264
2265 # We won't need inherit_from in this target any more, since we've
2266 # resolved all the inheritances that lead to this
2267 delete $table{$target}->{inherit_from};
2268
2269 # Now is the time to deal with those lists. Here's the place to
2270 # decide what shall be done with those lists, all based on the
2271 # values of the target we're currently dealing with.
2272 # - If a value is a coderef, it will be executed with the list of
2273 # inherited values as arguments.
2274 # - If the corresponding key doesn't have a value at all or is the
2275 # empty string, the inherited value list will be run through the
2276 # default combiner (below), and the result becomes this target's
2277 # value.
2278 # - Otherwise, this target's value is assumed to be a string that
2279 # will simply override the inherited list of values.
2280 my $default_combiner = add();
2281
2282 my %all_keys =
2283 map { $_ => 1 } (keys %combined_inheritance,
2284 keys %{$table{$target}});
2285
2286 sub process_values {
2287 my $object = shift;
2288 my $inherited = shift; # Always a [ list ]
2289 my $target = shift;
2290 my $entry = shift;
2291
2292 $add_called = 0;
2293
2294 while(ref($object) eq "CODE") {
2295 $object = $object->(@$inherited);
2296 }
2297 if (!defined($object)) {
2298 return ();
2299 }
2300 elsif (ref($object) eq "ARRAY") {
2301 local $add_called; # To make sure recursive calls don't affect it
2302 return [ map { process_values($_, $inherited, $target, $entry) }
2303 @$object ];
2304 } elsif (ref($object) eq "") {
2305 return $object;
2306 } else {
2307 die "cannot handle reference type ",ref($object)
2308 ," found in target ",$target," -> ",$entry,"\n";
2309 }
2310 }
2311
2312 foreach (sort keys %all_keys) {
2313 my $previous = $combined_inheritance{$_};
2314
2315 # Current target doesn't have a value for the current key?
2316 # Assign it the default combiner, the rest of this loop body
2317 # will handle it just like any other coderef.
2318 if (!exists $table{$target}->{$_}) {
2319 $table{$target}->{$_} = $default_combiner;
2320 }
2321
2322 $table{$target}->{$_} = process_values($table{$target}->{$_},
2323 $combined_inheritance{$_},
2324 $target, $_);
2325 unless(defined($table{$target}->{$_})) {
2326 delete $table{$target}->{$_};
2327 }
2328 # if ($extra_checks &&
2329 # $previous && !($add_called || $previous ~~ $table{$target}->{$_})) {
2330 # warn "$_ got replaced in $target\n";
2331 # }
2332 }
2333
2334 # Finally done, return the result.
2335 return %{$table{$target}};
2336 }
2337
2338 sub usage
2339 {
2340 print STDERR $usage;
2341 print STDERR "\npick os/compiler from:\n";
2342 my $j=0;
2343 my $i;
2344 my $k=0;
2345 foreach $i (sort keys %table)
2346 {
2347 next if $table{$i}->{template};
2348 next if $i =~ /^debug/;
2349 $k += length($i) + 1;
2350 if ($k > 78)
2351 {
2352 print STDERR "\n";
2353 $k=length($i);
2354 }
2355 print STDERR $i . " ";
2356 }
2357 foreach $i (sort keys %table)
2358 {
2359 next if $table{$i}->{template};
2360 next if $i !~ /^debug/;
2361 $k += length($i) + 1;
2362 if ($k > 78)
2363 {
2364 print STDERR "\n";
2365 $k=length($i);
2366 }
2367 print STDERR $i . " ";
2368 }
2369 print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
2370 exit(1);
2371 }
2372
2373 sub run_dofile
2374 {
2375 my $out = shift;
2376 my @templates = @_;
2377
2378 unlink $out || warn "Can't remove $out, $!"
2379 if -f $out;
2380 foreach (@templates) {
2381 die "Can't open $_, $!" unless -f $_;
2382 }
2383 my $cmd = "$config{perl} \"-I.\" \"-Mconfigdata\" \"$dofile\" -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
2384 #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
2385 system($cmd);
2386 exit 1 if $? != 0;
2387 rename("$out.new", $out) || die "Can't rename $out.new, $!";
2388 }
2389
2390 sub which
2391 {
2392 my ($name)=@_;
2393
2394 if (eval { require IPC::Cmd; 1; }) {
2395 IPC::Cmd->import();
2396 return scalar IPC::Cmd::can_run($name);
2397 } else {
2398 # if there is $directories component in splitpath,
2399 # then it's not something to test with $PATH...
2400 return $name if (File::Spec->splitpath($name))[1];
2401
2402 foreach (File::Spec->path()) {
2403 my $fullpath = catfile($_, "$name$target{exe_extension}");
2404 if (-f $fullpath and -x $fullpath) {
2405 return $fullpath;
2406 }
2407 }
2408 }
2409 }
2410
2411 # Configuration printer ##############################################
2412
2413 sub print_table_entry
2414 {
2415 my $target = shift;
2416 my %target = resolve_config($target);
2417 my $type = shift;
2418
2419 # Don't print the templates
2420 return if $target{template};
2421
2422 my @sequence = (
2423 "sys_id",
2424 "cc",
2425 "cflags",
2426 "defines",
2427 "unistd",
2428 "ld",
2429 "lflags",
2430 "plib_lflags",
2431 "ex_libs",
2432 "bn_ops",
2433 "cpuid_obj",
2434 "bn_obj",
2435 "ec_obj",
2436 "des_obj",
2437 "aes_obj",
2438 "bf_obj",
2439 "md5_obj",
2440 "sha1_obj",
2441 "cast_obj",
2442 "rc4_obj",
2443 "rmd160_obj",
2444 "rc5_obj",
2445 "wp_obj",
2446 "cmll_obj",
2447 "modes_obj",
2448 "padlock_obj",
2449 "thread_scheme",
2450 "perlasm_scheme",
2451 "dso_scheme",
2452 "shared_target",
2453 "shared_cflag",
2454 "shared_ldflag",
2455 "shared_rcflag",
2456 "shared_extension",
2457 "shared_extension_simple",
2458 "shared_import_extension",
2459 "dso_extension",
2460 "obj_extension",
2461 "exe_extension",
2462 "ranlib",
2463 "ar",
2464 "arflags",
2465 "multilib",
2466 "build_scheme",
2467 );
2468
2469 if ($type eq "TABLE") {
2470 print "\n";
2471 print "*** $target\n";
2472 foreach (@sequence) {
2473 if (ref($target{$_}) eq "ARRAY") {
2474 printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
2475 } else {
2476 printf "\$%-12s = %s\n", $_, $target{$_};
2477 }
2478 }
2479 } elsif ($type eq "HASH") {
2480 my $largest =
2481 length((sort { length($a) <=> length($b) } @sequence)[-1]);
2482 print " '$target' => {\n";
2483 foreach (@sequence) {
2484 if ($target{$_}) {
2485 if (ref($target{$_}) eq "ARRAY") {
2486 print " '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
2487 } else {
2488 print " '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
2489 }
2490 }
2491 }
2492 print " },\n";
2493 }
2494 }
2495
2496 # Utility routines ###################################################
2497
2498 # On VMS, if the given file is a logical name, File::Spec::Functions
2499 # will consider it an absolute path. There are cases when we want a
2500 # purely syntactic check without checking the environment.
2501 sub isabsolute {
2502 my $file = shift;
2503
2504 # On non-platforms, we just use file_name_is_absolute().
2505 return file_name_is_absolute($file) unless $^O eq "VMS";
2506
2507 # If the file spec includes a device or a directpry spec,
2508 # file_name_is_absolute() is perfectly safe.
2509 return file_name_is_absolute($file) if $file =~ m|[:\[]|;
2510
2511 # Here, we know the given file spec isn't absolute
2512 return 0;
2513 }
2514
2515 # Makes a directory absolute and cleans out /../ in paths like foo/../bar
2516 # On some platforms, this uses rel2abs(), while on others, realpath() is used.
2517 # realpath() requires that at least all path components except the last is an
2518 # existing directory. On VMS, the last component of the directory spec must
2519 # exist.
2520 sub absolutedir {
2521 my $dir = shift;
2522
2523 # realpath() is quite buggy on VMS. It uses LIB$FID_TO_NAME, which
2524 # will return the volume name for the device, no matter what. Also,
2525 # it will return an incorrect directory spec if the argument is a
2526 # directory that doesn't exist.
2527 if ($^O eq "VMS") {
2528 return rel2abs($dir);
2529 }
2530
2531 # We use realpath() on Unix, since no other will properly clean out
2532 # a directory spec.
2533 use Cwd qw/realpath/;
2534
2535 return realpath($dir);
2536 }
2537
2538 sub quotify {
2539 my %processors = (
2540 perl => sub { my $x = shift;
2541 $x =~ s/([\\\$\@"])/\\$1/g;
2542 return '"'.$x.'"'; },
2543 );
2544 my $for = shift;
2545 my $processor =
2546 defined($processors{$for}) ? $processors{$for} : sub { shift; };
2547
2548 return map { $processor->($_); } @_;
2549 }
2550
2551 # collect_from_file($filename, $line_concat_cond_re, $line_concat)
2552 # $filename is a file name to read from
2553 # $line_concat_cond_re is a regexp detecting a line continuation ending
2554 # $line_concat is a CODEref that takes care of concatenating two lines
2555 sub collect_from_file {
2556 my $filename = shift;
2557 my $line_concat_cond_re = shift;
2558 my $line_concat = shift;
2559
2560 open my $fh, $filename || die "unable to read $filename: $!\n";
2561 return sub {
2562 my $saved_line = "";
2563 $_ = "";
2564 while (<$fh>) {
2565 s|\R$||;
2566 if (defined $line_concat) {
2567 $_ = $line_concat->($saved_line, $_);
2568 $saved_line = "";
2569 }
2570 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
2571 $saved_line = $_;
2572 next;
2573 }
2574 return $_;
2575 }
2576 die "$filename ending with continuation line\n" if $_;
2577 close $fh;
2578 return undef;
2579 }
2580 }
2581
2582 # collect_from_array($array, $line_concat_cond_re, $line_concat)
2583 # $array is an ARRAYref of lines
2584 # $line_concat_cond_re is a regexp detecting a line continuation ending
2585 # $line_concat is a CODEref that takes care of concatenating two lines
2586 sub collect_from_array {
2587 my $array = shift;
2588 my $line_concat_cond_re = shift;
2589 my $line_concat = shift;
2590 my @array = (@$array);
2591
2592 return sub {
2593 my $saved_line = "";
2594 $_ = "";
2595 while (defined($_ = shift @array)) {
2596 s|\R$||;
2597 if (defined $line_concat) {
2598 $_ = $line_concat->($saved_line, $_);
2599 $saved_line = "";
2600 }
2601 if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
2602 $saved_line = $_;
2603 next;
2604 }
2605 return $_;
2606 }
2607 die "input text ending with continuation line\n" if $_;
2608 return undef;
2609 }
2610 }
2611
2612 # collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
2613 # $lineiterator is a CODEref that delivers one line at a time.
2614 # All following arguments are regex/CODEref pairs, where the regexp detects a
2615 # line and the CODEref does something with the result of the regexp.
2616 sub collect_information {
2617 my $lineiterator = shift;
2618 my %collectors = @_;
2619
2620 while(defined($_ = $lineiterator->())) {
2621 s|\R$||;
2622 my $found = 0;
2623 if ($collectors{"BEFORE"}) {
2624 $collectors{"BEFORE"}->($_);
2625 }
2626 foreach my $re (keys %collectors) {
2627 if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
2628 $collectors{$re}->($lineiterator);
2629 $found = 1;
2630 };
2631 }
2632 if ($collectors{"OTHERWISE"}) {
2633 $collectors{"OTHERWISE"}->($lineiterator, $_)
2634 unless $found || !defined $collectors{"OTHERWISE"};
2635 }
2636 if ($collectors{"AFTER"}) {
2637 $collectors{"AFTER"}->($_);
2638 }
2639 }
2640 }
2641
2642 # tokenize($line)
2643 # $line is a line of text to split up into tokens
2644 # returns a list of tokens
2645 #
2646 # Tokens are divided by spaces. If the tokens include spaces, they
2647 # have to be quoted with single or double quotes. Double quotes
2648 # inside a double quoted token must be escaped. Escaping is done
2649 # with backslash.
2650 # Basically, the same quoting rules apply for " and ' as in any
2651 # Unix shell.
2652 sub tokenize {
2653 my $line = my $debug_line = shift;
2654 my @result = ();
2655
2656 while ($line =~ s|^\s+||, $line ne "") {
2657 my $token = "";
2658 while ($line ne "" && $line !~ m|^\s|) {
2659 if ($line =~ m/^"((?:[^"\\]+|\\.)*)"/) {
2660 $token .= $1;
2661 $line = $';
2662 } elsif ($line =~ m/^'([^']*)'/) {
2663 $token .= $1;
2664 $line = $';
2665 } elsif ($line =~ m/^(\S+)/) {
2666 $token .= $1;
2667 $line = $';
2668 }
2669 }
2670 push @result, $token;
2671 }
2672
2673 if ($ENV{CONFIGURE_DEBUG_TOKENIZE}) {
2674 print STDERR "DEBUG[tokenize]: Parsed '$debug_line' into:\n";
2675 print STDERR "DEBUG[tokenize]: ('", join("', '", @result), "')\n";
2676 }
2677 return @result;
2678 }
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