Configure 79.5 KB
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#! /usr/bin/env perl
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# -*- mode: perl; -*-
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##  Configure -- OpenSSL source tree configuration script
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require 5.10.0;
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use strict;
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use File::Basename;
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use File::Spec::Functions qw/:DEFAULT abs2rel rel2abs/;
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use File::Path qw/mkpath/;
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# see INSTALL for instructions.
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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";
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# Options:
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#
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# --config      add the given configuration file, which will be read after
#               any "Configurations*" files that are found in the same
#               directory as this script.
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# --prefix      prefix for the OpenSSL installation, which includes the
#               directories bin, lib, include, share/man, share/doc/openssl
#               This becomes the value of INSTALLTOP in Makefile
#               (Default: /usr/local)
# --openssldir  OpenSSL data area, such as openssl.cnf, certificates and keys.
#               If it's a relative directory, it will be added on the directory
#               given with --prefix.
#               This becomes the value of OPENSSLDIR in Makefile and in C.
#               (Default: PREFIX/ssl)
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#
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# --cross-compile-prefix Add specified prefix to binutils components.
#
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# --api         One of 0.9.8, 1.0.0 or 1.1.0.  Do not compile support for
#               interfaces deprecated as of the specified OpenSSL version.
#
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# no-hw-xxx     do not compile support for specific crypto hardware.
#               Generic OpenSSL-style methods relating to this support
#               are always compiled but return NULL if the hardware
#               support isn't compiled.
# no-hw         do not compile support for any crypto hardware.
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# [no-]threads  [don't] try to create a library that is suitable for
#               multithreaded applications (default is "threads" if we
#               know how to do it)
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# [no-]shared	[don't] try to create shared libraries when supported.
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# [no-]pic      [don't] try to build position independent code when supported.
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#               If disabled, it also disables shared and dynamic-engine.
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# no-asm        do not use assembler
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# no-dso        do not compile in any native shared-library methods. This
#               will ensure that all methods just return NULL.
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# no-egd        do not compile support for the entropy-gathering daemon APIs
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# [no-]zlib     [don't] compile support for zlib compression.
# zlib-dynamic	Like "zlib", but the zlib library is expected to be a shared
#		library and will be loaded in run-time by the OpenSSL library.
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# sctp          include SCTP support
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# 386           generate 80386 code
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# enable-weak-ssl-ciphers
#               Enable weak ciphers that are disabled by default. This currently
#               only includes RC4 based ciphers.
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# no-sse2	disables IA-32 SSE2 code, above option implies no-sse2
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# no-<cipher>   build without specified algorithm (rsa, idea, rc5, ...)
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# -<xxx> +<xxx> compiler options are passed through
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#
# DEBUG_SAFESTACK use type-safe stacks to enforce type-safety on stack items
#		provided to stack calls. Generates unique stack functions for
#		each possible stack type.
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# BN_LLONG	use the type 'long long' in crypto/bn/bn.h
# RC4_CHAR	use 'char' instead of 'int' for RC4_INT in crypto/rc4/rc4.h
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# Following are set automatically by this script
#
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# MD5_ASM	use some extra md5 assember,
# SHA1_ASM	use some extra sha1 assember, must define L_ENDIAN for x86
# RMD160_ASM	use some extra ripemd160 assember,
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# SHA256_ASM	sha256_block is implemented in assembler
# SHA512_ASM	sha512_block is implemented in assembler
# AES_ASM	ASE_[en|de]crypt is implemented in assembler
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# Minimum warning options... any contributions to OpenSSL should at least get
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# past these.
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my $gcc_devteam_warn = "-DPEDANTIC -DREF_DEBUG -DDEBUG_UNUSED -DBIO_DEBUG"
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        . " -pedantic"
        . " -Wall"
        . " -Wno-long-long"
        . " -Wsign-compare"
        . " -Wmissing-prototypes"
        . " -Wshadow"
        . " -Wformat"
        . " -Wtype-limits"
        . " -Werror"
        ;
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# These are used in addition to $gcc_devteam_warn when the compiler is clang.
# TODO(openssl-team): fix problems and investigate if (at least) the
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# following warnings can also be enabled:
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#       -Wswitch-enum
#       -Wcast-align
#       -Wunreachable-code
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#       -Wlanguage-extension-token -- no, we use asm()
#       -Wunused-macros -- no, too tricky for BN and _XOPEN_SOURCE etc
#       -Wextended-offsetof -- no, needed in CMS ASN1 code
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my $clang_devteam_warn = ""
        . " -Qunused-arguments"
        . " -Wextra"
        . " -Wno-unused-parameter"
        . " -Wno-missing-field-initializers"
        . " -Wno-language-extension-token"
        . " -Wno-extended-offsetof"
        . " -Wconditional-uninitialized"
        . " -Wincompatible-pointer-types-discards-qualifiers"
        . " -Wmissing-variable-declarations"
        ;
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# This adds backtrace information to the memory leak info.  Is only used
# when crypto-mdebug-backtrace is enabled.
my $memleak_devteam_backtrace = "-rdynamic";
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my $strict_warnings = 0;

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# As for $BSDthreads. Idea is to maintain "collective" set of flags,
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# which would cover all BSD flavors. -pthread applies to them all,
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# but is treated differently. OpenBSD expands is as -D_POSIX_THREAD
# -lc_r, which is sufficient. FreeBSD 4.x expands it as -lc_r,
# which has to be accompanied by explicit -D_THREAD_SAFE and
# sometimes -D_REENTRANT. FreeBSD 5.x expands it as -lc_r, which
# seems to be sufficient?
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our $BSDthreads="-pthread -D_THREAD_SAFE -D_REENTRANT";
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#
# API compability name to version number mapping.
#
my $maxapi = "1.1.0";           # API for "no-deprecated" builds
my $apitable = {
    "1.1.0" => "0x10100000L",
    "1.0.0" => "0x10000000L",
    "0.9.8" => "0x00908000L",
};

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our %table = ();
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our %config = ();
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our %withargs = ();
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# Forward declarations ###############################################
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# read_config(filename)
#
# Reads a configuration file and populates %table with the contents
# (which the configuration file places in %targets).
sub read_config;
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# resolve_config(target)
#
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# Resolves all the late evalutations, inheritances and so on for the
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# chosen target and any target it inherits from.
sub resolve_config;
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# Information collection #############################################

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# Unified build supports separate build dir
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my $srcdir = catdir(absolutedir(dirname($0))); # catdir ensures local syntax
my $blddir = catdir(absolutedir("."));         # catdir ensures local syntax
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my $dofile = abs2rel(catfile($srcdir, "util/dofile.pl"));

$config{sourcedir} = abs2rel($srcdir);
$config{builddir} = abs2rel($blddir);

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# Collect version numbers
$config{version} = "unknown";
$config{version_num} = "unknown";
$config{shlib_version_number} = "unknown";
$config{shlib_version_history} = "unknown";

collect_information(
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    collect_from_file(catfile($srcdir,'include/openssl/opensslv.h')),
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    qr/OPENSSL.VERSION.TEXT.*OpenSSL (\S+) / => sub { $config{version} = $1; },
    qr/OPENSSL.VERSION.NUMBER.*(0x\S+)/	     => sub { $config{version_num}=$1 },
    qr/SHLIB_VERSION_NUMBER *"([^"]+)"/	     => sub { $config{shlib_version_number}=$1 },
    qr/SHLIB_VERSION_HISTORY *"([^"]*)"/     => sub { $config{shlib_version_history}=$1 }
    );
if ($config{shlib_version_history} ne "") { $config{shlib_version_history} .= ":"; }

($config{major}, $config{minor})
    = ($config{version} =~ /^([0-9]+)\.([0-9\.]+)/);
($config{shlib_major}, $config{shlib_minor})
    = ($config{shlib_version_number} =~ /^([0-9]+)\.([0-9\.]+)/);
die "erroneous version information in opensslv.h: ",
    "$config{major}, $config{minor}, $config{shlib_major}, $config{shlib_minor}\n"
    if ($config{major} eq "" || $config{minor} eq ""
	|| $config{shlib_major} eq "" ||  $config{shlib_minor} eq "");

# Collect target configurations

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my $pattern = catfile(dirname($0), "Configurations", "*.conf");
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foreach (sort glob($pattern) ) {
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    &read_config($_);
}
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print "Configuring OpenSSL version $config{version} (0x$config{version_num})\n";

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$config{prefix}="";
$config{openssldir}="";
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$config{processor}="";
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$config{libdir}="";
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$config{cross_compile_prefix}="";
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$config{fipslibdir}="/usr/local/ssl/fips-2.0/lib/";
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my $nofipscanistercheck=0;
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$config{baseaddr}="0xFB00000";
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my $auto_threads=1;    # enable threads automatically? true by default
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my $default_ranlib;
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$config{fips}=0;

# Top level directories to build
$config{dirs} = [ "crypto", "ssl", "engines", "apps", "test", "tools" ];
# crypto/ subdirectories to build
$config{sdirs} = [
    "objects",
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    "md2", "md4", "md5", "sha", "mdc2", "hmac", "ripemd", "whrlpool", "poly1305", "blake2",
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    "des", "aes", "rc2", "rc4", "rc5", "idea", "bf", "cast", "camellia", "seed", "chacha", "modes",
    "bn", "ec", "rsa", "dsa", "dh", "dso", "engine",
    "buffer", "bio", "stack", "lhash", "rand", "err",
    "evp", "asn1", "pem", "x509", "x509v3", "conf", "txt_db", "pkcs7", "pkcs12", "comp", "ocsp", "ui",
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    "cms", "ts", "srp", "cmac", "ct", "async", "kdf"
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    ];
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# Known TLS and DTLS protocols
my @tls = qw(ssl3 tls1 tls1_1 tls1_2);
my @dtls = qw(dtls1 dtls1_2);

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# Explicitelly known options that are possible to disable.  They can
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# be regexps, and will be used like this: /^no-${option}$/
# For developers: keep it sorted alphabetically

my @disablables = (
    "aes",
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    "afalgeng",
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    "asm",
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    "async",
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    "autoalginit",
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    "autoerrinit",
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    "bf",
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    "blake2",
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    "camellia",
    "capieng",
    "cast",
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    "chacha",
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    "cmac",
    "cms",
    "comp",
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    "crypto-mdebug",
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    "crypto-mdebug-backtrace",
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    "ct",
    "deprecated",
    "des",
    "dgram",
    "dh",
    "dsa",
    "dso",
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    "dtls",
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    "dynamic-engine",
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    "ec",
    "ec2m",
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    "ecdh",
    "ecdsa",
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    "ec_nistp_64_gcc_128",
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    "egd",
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    "engine",
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    "err",
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    "filenames",
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    "gost",
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    "heartbeats",
    "hmac",
    "hw(-.+)?",
    "idea",
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    "makedepend",
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    "md2",
    "md4",
    "md5",
    "mdc2",
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    "multiblock",
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    "nextprotoneg",
    "ocb",
    "ocsp",
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    "pic",
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    "poly1305",
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    "posix-io",
    "psk",
    "rc2",
    "rc4",
    "rc5",
    "rdrand",
    "rfc3779",
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    "ripemd",
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    "rmd160",
    "rsa",
    "scrypt",
    "sct",
    "sctp",
    "seed",
    "sha",
    "shared",
    "sock",
    "srp",
    "srtp",
    "sse2",
    "ssl",
    "ssl-trace",
    "static-engine",
    "stdio",
    "threads",
    "tls",
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    "ts",
    "ui",
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    "unit-test",
    "whirlpool",
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    "weak-ssl-ciphers",
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    "zlib",
    "zlib-dynamic",
    );
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foreach my $proto ((@tls, @dtls))
	{
	push(@disablables, $proto);
	push(@disablables, "$proto-method");
	}
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my @deprecated_disablables = (
    "ssl2",
    );

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# All of the following is disabled by default (RC5 was enabled before 0.9.8):

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our %disabled = ( # "what"         => "comment"
		  "ec_nistp_64_gcc_128" => "default",
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		  "egd"                 => "default",
		  "md2"                 => "default",
		  "rc5"                 => "default",
		  "sctp"                => "default",
		  "shared"              => "default",
		  "ssl-trace"           => "default",
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		  "ssl3"                => "default",
		  "ssl3-method"         => "default",
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		  "unit-test"           => "default",
		  "weak-ssl-ciphers"    => "default",
		  "zlib"                => "default",
		  "zlib-dynamic"        => "default",
		  "crypto-mdebug"       => "default",
		  "heartbeats"          => "default",
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		);
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# Note: => pair form used for aesthetics, not to truly make a hash table
my @disable_cascades = (
    # "what"		=> [ "cascade", ... ]
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    sub { $config{processor} eq "386" }
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			=> [ "sse2" ],
    "ssl"		=> [ "ssl3" ],
    "ssl3-method"	=> [ "ssl3" ],
    "zlib"		=> [ "zlib-dynamic" ],
    "des"		=> [ "mdc2" ],
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    "ec"		=> [ "ecdsa", "ecdh" ],
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    "dgram"		=> [ "dtls", "sctp" ],
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    "sock"		=> [ "sctp" ],
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    "dtls"		=> [ @dtls ],

    # SSL 3.0, (D)TLS 1.0 and TLS 1.1 require MD5 and SHA
    "md5"		=> [ "ssl", "tls1", "tls1_1", "dtls1" ],
    "sha"		=> [ "ssl", "tls1", "tls1_1", "dtls1" ],

    # Additionally, SSL 3.0 requires either RSA or DSA+DH
    sub { $disabled{rsa}
	  && ($disabled{dsa} || $disabled{dh}); }
			=> [ "ssl" ],

    # (D)TLS 1.0 and TLS 1.1 also require either RSA or DSA+DH
    # or ECDSA + ECDH.  (D)TLS 1.2 has this requirement as well.
    # (XXX: We don't support PSK-only builds).
    sub { $disabled{rsa}
	  && ($disabled{dsa} || $disabled{dh})
	  && ($disabled{ecdsa} || $disabled{ecdh}); }
			=> [ "tls1", "tls1_1", "tls1_2",
			     "dtls1", "dtls1_2" ],

    "tls"		=> [ @tls ],

    # SRP and HEARTBEATS require TLSEXT
    "tlsext"		=> [ "srp", "heartbeats" ],
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    "crypto-mdebug"     => [ "crypto-mdebug-backtrace" ],
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    # Without DSO, we can't load dynamic engines, so don't build them dynamic
    "dso"               => [ "dynamic-engine" ],
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    # Without position independent code, there can be no shared libraries or DSOs
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    "pic"               => [ "shared" ],
    "shared"            => [ "dynamic-engine" ],
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    "engine"            => [ "afalgeng" ],
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    "comp"		=> [ "zlib" ],
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    sub { !$disabled{"unit-test"} } => [ "heartbeats" ],
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    );

# Avoid protocol support holes.  Also disable all versions below N, if version
# N is disabled while N+1 is enabled.
#
my @list = (reverse @tls);
while ((my $first, my $second) = (shift @list, shift @list)) {
    last unless @list;
    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
			      => [ @list ] );
    unshift @list, $second;
}
my @list = (reverse @dtls);
while ((my $first, my $second) = (shift @list, shift @list)) {
    last unless @list;
    push @disable_cascades, ( sub { !$disabled{$first} && $disabled{$second} }
			      => [ @list ] );
    unshift @list, $second;
}

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# Explicit "no-..." options will be collected in %disabled along with the defaults.
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# To remove something from %disabled, use "enable-foo".
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# For symmetry, "disable-foo" is a synonym for "no-foo".

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my @generated_headers = (
    "include/openssl/opensslconf.h",
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    "crypto/include/internal/bn_conf.h",
    "crypto/include/internal/dso_conf.h"
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    );

my @generated_by_make_headers = (
    "crypto/buildinf.h"
    );

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my $no_sse2=0;
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&usage if ($#ARGV < 0);
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my $user_cflags="";
my @user_defines=();
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$config{openssl_api_defines}=[];
$config{openssl_algorithm_defines}=[];
$config{openssl_thread_defines}=[];
$config{openssl_sys_defines}=[];
$config{openssl_other_defines}=[];
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my $libs="";
my $target="";
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$config{options}="";
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$config{build_type} = "release";
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my $classic = 0;

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my @argvcopy=@ARGV;

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if (grep /^reconf(igure)?$/, @argvcopy) {
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    if (-f "./configdata.pm") {
	my $file = "./configdata.pm";
	unless (my $return = do $file) {
	    die "couldn't parse $file: $@" if $@;
            die "couldn't do $file: $!"    unless defined $return;
            die "couldn't run $file"       unless $return;
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	}
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	@argvcopy = defined($configdata::config{perlargv}) ?
	    @{$configdata::config{perlargv}} : ();
	die "Incorrect data to reconfigure, please do a normal configuration\n"
	    if (grep(/^reconf/,@argvcopy));
	$ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
	    if defined($configdata::config{cross_compile_prefix});
	$ENV{CROSS_COMPILE} = $configdata::config{cc}
	    if defined($configdata::config{cc});

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	print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
	print "    CROSS_COMPILE = ",$ENV{CROSS_COMPILE},"\n"
	    if $ENV{CROSS_COMPILE};
	print "    CC = ",$ENV{CC},"\n" if $ENV{CC};
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    } elsif (open IN, "<Makefile") {
        #
        # THIS SECTION IS TEMPORARY, it helps transitioning from Makefile
        # centered information gathering the reading configdata.pm
        #
        while (<IN>) {
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            s|\R$||;
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            if (/^CONFIGURE_ARGS=\s*(.*)\s*/) {
                # Older form, we split the string and hope for the best
                @argvcopy = split /\s+/, $_;
                die "Incorrect data to reconfigure, please do a normal configuration\n"
                    if (grep(/^reconf/,@argvcopy));
            } elsif (/^CROSS_COMPILE=\s*(.*)/) {
                $ENV{CROSS_COMPILE}=$1;
            } elsif (/^CC=\s*(?:\$\(CROSS_COMPILE\))?(.*?)$/) {
                $ENV{CC}=$1;
            }
        }
        #
        # END OF TEMPORARY SECTION
        #
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    } else {
	die "Insufficient data to reconfigure, please do a normal configuration\n";
    }
}

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$config{perlargv} = [ @argvcopy ];
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my %unsupported_options = ();
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my %deprecated_options = ();
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foreach (@argvcopy)
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	{
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	# VMS is a case insensitive environment, and depending on settings
	# out of our control, we may receive options uppercased.  Let's
	# downcase at least the part before any equal sign.
	if ($^O eq "VMS")
		{
		s/^([^=]*)/lc($1)/e;
		}
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	s /^-no-/no-/; # some people just can't read the instructions
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	# rewrite some options in "enable-..." form
	s /^-?-?shared$/enable-shared/;
	s /^sctp$/enable-sctp/;
	s /^threads$/enable-threads/;
	s /^zlib$/enable-zlib/;
	s /^zlib-dynamic$/enable-zlib-dynamic/;
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        if (/^(no|disable|enable)-(.+)$/)
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		{
		my $word = $2;
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		if (grep { $word =~ /^${_}$/ } @deprecated_disablables)
			{
			$deprecated_options{$_} = 1;
			next;
			}
		elsif (!grep { $word =~ /^${_}$/ } @disablables)
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			{
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			$unsupported_options{$_} = 1;
			next;
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			}
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		}
	if (/^no-(.+)$/ || /^disable-(.+)$/)
		{
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                foreach my $proto ((@tls, @dtls))
                        {
                        if ($1 eq "$proto-method")
                                {
                                $disabled{"$proto"} = "option($proto-method)";
                                last;
                                }
                        }
                if ($1 eq "dtls")
                        {
                        foreach my $proto (@dtls)
                                {
                                $disabled{$proto} = "option(dtls)";
                                }
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                        $disabled{"dtls"} = "option(dtls)";
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                        }
                elsif ($1 eq "ssl")
                        {
                        # Last one of its kind
                        $disabled{"ssl3"} = "option(ssl)";
                        }
                elsif ($1 eq "tls")
                        {
                        # XXX: Tests will fail if all SSL/TLS
                        # protocols are disabled.
                        foreach my $proto (@tls)
                                {
                                $disabled{$proto} = "option(tls)";
                                }
                        }
570 571
                elsif ($1 eq "static-engine")
                        {
572
                        delete $disabled{"dynamic-engine"};
573 574 575
                        }
                elsif ($1 eq "dynamic-engine")
                        {
576
                        $disabled{"dynamic-engine"} = "option";
577
                        }
578 579 580 581
                else
                        {
                        $disabled{$1} = "option";
                        }
582 583
		# No longer an automatic choice
		$auto_threads = 0 if ($1 eq "threads");
584
		}
585
	elsif (/^enable-(.+)$/)
586
		{
587 588
                if ($1 eq "static-engine")
                        {
589
                        $disabled{"dynamic-engine"} = "option";
590 591 592
                        }
                elsif ($1 eq "dynamic-engine")
                        {
593
                        delete $disabled{"dynamic-engine"};
594
                        }
595 596 597 598
                elsif ($1 eq "zlib-dynamic")
                        {
                        delete $disabled{"zlib"};
                        }
599 600
		my $algo = $1;
		delete $disabled{$algo};
601

602 603
		# No longer an automatic choice
		$auto_threads = 0 if ($1 eq "threads");
604 605 606 607 608 609 610
		}
	elsif (/^--strict-warnings$/)
		{
		$strict_warnings = 1;
		}
	elsif (/^--debug$/)
		{
611
		$config{build_type} = "debug";
612 613 614
		}
	elsif (/^--release$/)
		{
615
		$config{build_type} = "release";
616 617
		}
	elsif (/^386$/)
618
		{ $config{processor}=386; }
619 620
	elsif (/^fips$/)
		{
621
		$config{fips}=1;
622 623 624 625 626 627 628 629 630
		}
	elsif (/^rsaref$/)
		{
		# No RSAref support any more since it's not needed.
		# The check for the option is there so scripts aren't
		# broken
		}
	elsif (/^nofipscanistercheck$/)
		{
631
		$config{fips} = 1;
632 633 634 635
		$nofipscanistercheck = 1;
		}
	elsif (/^[-+]/)
		{
636 637 638 639 640
		if (/^--classic$/)
			{
			$classic=1;
			}
		elsif (/^--prefix=(.*)$/)
641
			{
642
			$config{prefix}=$1;
643 644
			die "Directory given with --prefix MUST be absolute\n"
				unless file_name_is_absolute($config{prefix});
645
			}
646
		elsif (/^--api=(.*)$/)
647
			{
648
			$config{api}=$1;
649
			}
650
		elsif (/^--libdir=(.*)$/)
651
			{
652
			$config{libdir}=$1;
653
			}
654
		elsif (/^--openssldir=(.*)$/)
655
			{
656
			$config{openssldir}=$1;
657
			}
658
		elsif (/^--with-zlib-lib=(.*)$/)
659
			{
660
			$withargs{zlib_lib}=$1;
B
Bodo Möller 已提交
661
			}
662
		elsif (/^--with-zlib-include=(.*)$/)
663
			{
664
			$withargs{zlib_include}="-I$1";
665
			}
666
		elsif (/^--with-fipslibdir=(.*)$/)
667
			{
668
			$config{fipslibdir}="$1/";
669
			}
670
		elsif (/^--with-baseaddr=(.*)$/)
671
			{
672
			$config{baseaddr}="$1";
673
			}
674
		elsif (/^--cross-compile-prefix=(.*)$/)
675
			{
676
			$config{cross_compile_prefix}=$1;
677
			}
678
		elsif (/^--config=(.*)$/)
679
			{
680
			read_config $1;
681
			}
682
		elsif (/^-[lL](.*)$/ or /^-Wl,/)
683
			{
684
			$libs.=$_." ";
685
			}
686 687 688 689
		elsif (/^-D(.*)$/)
			{
			push @user_defines, $1;
			}
690 691 692
		else	# common if (/^[-+]/), just pass down...
			{
			$_ =~ s/%([0-9a-f]{1,2})/chr(hex($1))/gei;
R
Rich Salz 已提交
693
			$user_cflags.=" ".$_;
694 695 696 697 698 699 700 701 702 703
			}
		}
	else
		{
		die "target already defined - $target (offending arg: $_)\n" if ($target ne "");
		$target=$_;
		}
	unless ($_ eq $target || /^no-/ || /^disable-/)
		{
		# "no-..." follows later after implied disactivations
R
Rich Salz 已提交
704
		# have been derived.  (Don't take this too seroiusly,
705 706 707
		# we really only write OPTIONS to the Makefile out of
		# nostalgia.)

708 709
		if ($config{options} eq "")
			{ $config{options} = $_; }
710
		else
711
			{ $config{options} .= " ".$_; }
712
		}
713

714 715
        if (defined($config{api}) && !exists $apitable->{$config{api}}) {
		die "***** Unsupported api compatibility level: $config{api}\n",
716 717
        }

718 719 720 721 722
	if (keys %deprecated_options)
		{
		warn "***** Deprecated options: ",
			join(", ", keys %deprecated_options), "\n";
		}
723 724 725 726 727
	if (keys %unsupported_options)
		{
		die "***** Unsupported options: ",
			join(", ", keys %unsupported_options), "\n";
		}
728
	}
729

730
if ($config{fips})
B
Ben Laurie 已提交
731
	{
732
	delete $disabled{"shared"} if ($disabled{"shared"} =~ /^default/);
733
	}
734 735 736 737
else
	{
	@{$config{dirs}} = grep !/^fips$/, @{$config{dirs}};
	}
738

739 740 741 742 743 744 745 746
my @tocheckfor = (keys %disabled);
while (@tocheckfor) {
    my %new_tocheckfor = ();
    my @cascade_copy = (@disable_cascades);
    while (@cascade_copy) {
	my ($test, $descendents) = (shift @cascade_copy, shift @cascade_copy);
	if (ref($test) eq "CODE" ? $test->() : defined($disabled{$test})) {
	    map {
R
Richard Levitte 已提交
747
		$new_tocheckfor{$_} = 1; $disabled{$_} = "forced";
748
	    } grep { !defined($disabled{$_}) } @$descendents;
749
	}
750 751 752
    }
    @tocheckfor = (keys %new_tocheckfor);
}
B
Ben Laurie 已提交
753

B
Bodo Möller 已提交
754
if ($target eq "TABLE") {
755 756 757 758
    foreach (sort keys %table) {
	print_table_entry($_, "TABLE");
    }
    exit 0;
B
Bodo Möller 已提交
759 760
}

761
if ($target eq "LIST") {
762 763 764 765
    foreach (sort keys %table) {
	print $_,"\n" unless $table{$_}->{template};
    }
    exit 0;
766 767
}

768
if ($target eq "HASH") {
769 770 771 772 773
    print "%table = (\n";
    foreach (sort keys %table) {
	print_table_entry($_, "HASH");
    }
    exit 0;
774 775
}

776
# Backward compatibility?
777
if ($target =~ m/^CygWin32(-.*)$/) {
778
    $target = "Cygwin".$1;
779 780
}

781 782
foreach (sort (keys %disabled))
	{
783
	$config{options} .= " no-$_";
784 785 786 787

	printf "    no-%-12s %-10s", $_, "[$disabled{$_}]";

	if (/^dso$/)
788
		{ }
789
	elsif (/^threads$/)
790
		{ }
791
	elsif (/^shared$/)
792
		{ }
793 794
	elsif (/^pic$/)
		{ }
795
	elsif (/^zlib$/)
796
		{ }
797
	elsif (/^dynamic-engine$/)
D
Dr. Stephen Henson 已提交
798
		{ }
799 800
	elsif (/^makedepend$/)
		{ }
801 802 803 804
	elsif (/^zlib-dynamic$/)
		{ }
	elsif (/^sse2$/)
		{ $no_sse2 = 1; }
805
	elsif (/^engine$/)
R
Rich Salz 已提交
806 807 808 809 810
		{
		@{$config{dirs}} = grep !/^engines$/, @{$config{dirs}};
		@{$config{sdirs}} = grep !/^engine$/, @{$config{sdirs}};
		push @{$config{openssl_other_defines}}, "OPENSSL_NO_ENGINE";
		}
811 812 813
	else
		{
		my ($ALGO, $algo);
814
		($ALGO = $algo = $_) =~ tr/[\-a-z]/[_A-Z]/;
815

816
		if (/^asm$/ || /^err$/ || /^hw$/ || /^hw-/ || /^async$/
817
				|| /^autoalginit/ || /^autoerrinit/)
818
			{
819
			push @{$config{openssl_other_defines}}, "OPENSSL_NO_$ALGO";
820
			print " OPENSSL_NO_$ALGO";
821

822
			if (/^err$/)	{ push @user_defines, "OPENSSL_NO_ERR"; }
823 824 825
			}
		else
			{
826 827
			($ALGO,$algo) = ("RMD160","rmd160") if ($algo eq "ripemd");

828
			push @{$config{openssl_algorithm_defines}}, "OPENSSL_NO_$ALGO";
829 830
			print " OPENSSL_NO_$ALGO";

831
			# fix-up crypto/directory name(s)
832 833 834
			$algo="whrlpool" if $algo eq "whirlpool";
			$algo="ripemd" if $algo eq "rmd160";
			@{$config{sdirs}} = grep { $_ ne $algo} @{$config{sdirs}};
835

836
			print " (skip dir)";
837 838 839 840 841 842
			}
		}

	print "\n";
	}

843 844 845 846 847
print "Configuring for $target\n";

# Support for legacy targets having a name starting with 'debug-'
my ($d, $t) = $target =~ m/^(debug-)?(.*)$/;
if ($d) {
848
    $config{build_type} = "debug";
849 850 851 852 853 854

    # If we do not find debug-foo in the table, the target is set to foo.
    if (!$table{$target}) {
	$target = $t;
    }
}
855
$config{target} = $target;
856
my %target = resolve_config($target);
857 858 859

&usage if (!%target || $target{template});

860
%target = ( %{$table{DEFAULTS}}, %target );
861

862
$target{exe_extension}="";
R
Richard Levitte 已提交
863 864
$target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
                                  || $config{target} =~ /^(?:Cygwin|mingw)/);
865
$target{exe_extension}=".pm"  if ($config{target} =~ /vos/);
866

867 868 869 870 871 872 873
($target{shared_extension_simple}=$target{shared_extension})
    =~ s|\.\$\(SHLIB_MAJOR\)\.\$\(SHLIB_MINOR\)||;
$target{dso_extension}=$target{shared_extension_simple};
($target{shared_import_extension}=$target{shared_extension_simple}.".a")
    if ($config{target} =~ /^(?:Cygwin|mingw)/);


874 875
$config{cross_compile_prefix} = $ENV{'CROSS_COMPILE'}
    if $config{cross_compile_prefix} eq "";
876

877
# Allow overriding the names of some tools.  USE WITH CARE
878
$config{perl} =    $ENV{'PERL'}    || ($^O ne "VMS" ? $^X : "perl");
879 880 881 882
$target{cc} =      $ENV{'CC'}      || $target{cc}      || "cc";
$target{ranlib} =  $ENV{'RANLIB'}  || $target{ranlib}  || which("ranlib") || "true";
$target{ar} =      $ENV{'AR'}      || $target{ar}      || "ar";
$target{nm} =      $ENV{'NM'}      || $target{nm}      || "nm";
883

884 885
# For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
# or release_ attributes.
886
# Do it in such a way that no spurious space is appended (hence the grep).
887 888 889 890
$config{defines} = [];
$config{cflags} = "";
$config{ex_libs} = "";
$config{shared_ldflag} = "";
891

892 893 894 895
# Make sure build_scheme is consistent.
$target{build_scheme} = [ $target{build_scheme} ]
    if ref($target{build_scheme}) ne "ARRAY";

896 897 898 899 900 901 902 903 904
###### TO BE REMOVED WHEN CLASSIC BUILD IS REMOVED
######
###### If the user has chosen --classic, we give it to them.
###### If they try that with an out-of-source config, we complain.
if ($target{build_scheme}->[0] eq "unified" && $classic) {
    die "Can't perform a classic build out of source tree\n"
        if $srcdir ne $blddir;

    $target{build_scheme} = { unix    => [ "unixmake" ],
R
Richard Levitte 已提交
905
                              windows => undef,
906 907 908 909 910 911
                              VMS     => undef } -> {$target{build_scheme}->[1]};

    die "Classic mode unavailable on this platform\n"
        unless defined($target{build_scheme});
}

912 913 914
my ($builder, $builder_platform, @builder_opts) =
    @{$target{build_scheme}};

915 916
push @{$config{defines}}, "NDEBUG"    if $config{build_type} eq "release";

917
if ($target =~ /^mingw/ && `$target{cc} --target-help 2>&1` =~ m/-mno-cygwin/m)
918
	{
919
	$config{cflags} .= " -mno-cygwin";
920
	$config{shared_ldflag} .= " -mno-cygwin";
921 922
	}

923
if ($target =~ /linux.*-mips/ && !$disabled{asm} && $user_cflags !~ /-m(ips|arch=)/) {
A
Andy Polyakov 已提交
924
	# minimally required architecture flags for assembly modules
925 926
	$config{cflags}="-mips2 $config{cflags}" if ($target =~ /mips32/);
	$config{cflags}="-mips3 $config{cflags}" if ($target =~ /mips64/);
A
Andy Polyakov 已提交
927 928
}

929
my $no_shared_warn=0;
930
my $no_user_cflags=0;
931
my $no_user_defines=0;
932

933 934 935 936 937 938
# The DSO code currently always implements all functions so that no
# applications will have to worry about that from a compilation point
# of view. However, the "method"s may return zero unless that platform
# has support compiled in for them. Currently each method is enabled
# by a define "DSO_<name>" ... we translate the "dso_scheme" config
# string entry into using the following logic;
939
if (!$disabled{dso} && $target{dso_scheme} ne "")
940
	{
941 942
	$target{dso_scheme} =~ tr/[a-z]/[A-Z]/;
	if ($target{dso_scheme} eq "DLFCN")
943
		{
944
		unshift @{$config{defines}}, "DSO_DLFCN", "HAVE_DLFCN_H";
945
		}
946
	elsif ($target{dso_scheme} eq "DLFCN_NO_H")
947
		{
948
		unshift @{$config{defines}}, "DSO_DLFCN";
949 950 951
		}
	else
		{
952
		unshift @{$config{defines}}, "DSO_$target{dso_scheme}";
953 954
		}
	}
955

956
$config{ex_libs}="$libs$config{ex_libs}" if ($libs ne "");
957

958
if ($disabled{asm})
959
	{
960 961 962 963 964
	if ($config{fips})
		{
		@{$config{defines}} = grep !/^[BL]_ENDIAN$/, @{$config{defines}};
		@{$target{defines}} = grep !/^[BL]_ENDIAN$/, @{$target{defines}};
		}
965
	}
966

967 968 969 970 971 972 973 974
# If threads aren't disabled, check how possible they are
unless ($disabled{threads}) {
    if ($auto_threads) {
        # Enabled by default, disable it forcibly if unavailable
        if ($target{thread_scheme} eq "(unknown)") {
            $disabled{threads} = "unavailable";
        }
    } else {
R
Rich Salz 已提交
975
        # The user chose to enable threads explicitely, let's see
976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
        # if there's a chance that's possible
        if ($target{thread_scheme} eq "(unknown)") {
            # If the user asked for "threads" and we don't have internal
            # knowledge how to do it, [s]he is expected to provide any
            # system-dependent compiler options that are necessary.  We
            # can't truly check that the given options are correct, but
            # we expect the user to know what [s]He is doing.
            if ($no_user_cflags && $no_user_defines) {
                die "You asked for multi-threading support, but didn't\n"
                    ,"provide any system-specific compiler options\n";
            }
        }
    }
}

# If threads still aren't disabled, add a C macro to ensure the source
# code knows about it.  Any other flag is taken care of by the configs.
unless($disabled{threads}) {
    foreach (("defines", "openssl_thread_defines")) {
        push @{$config{$_}}, "OPENSSL_THREADS";
    }
}
998

999 1000
# With "deprecated" disable all deprecated features.
if (defined($disabled{"deprecated"})) {
1001
        $config{api} = $maxapi;
1002
}
1003

1004
if ($target{shared_target} eq "")
1005
	{
1006
	$no_shared_warn = 1
1007
	    if ((!$disabled{shared} || !$disabled{"dynamic-engine"})
1008
		&& !$config{fips});
1009
	$disabled{shared} = "no-shared-target";
1010 1011
	$disabled{pic} = $disabled{shared} = $disabled{"dynamic-engine"} =
	    "no-shared-target";
1012
	}
1013

1014
if ($disabled{"dynamic-engine"}) {
1015 1016
        push @{$config{defines}}, "OPENSSL_NO_DYNAMIC_ENGINE";
        $config{dynamic_engines} = 0;
1017 1018 1019
} else {
        push @{$config{defines}}, "OPENSSL_NO_STATIC_ENGINE";
        $config{dynamic_engines} = 1;
1020
}
1021

1022 1023 1024
#
# Platform fix-ups
#
1025 1026 1027 1028 1029 1030 1031

# This saves the build files from having to check
if ($disabled{pic})
	{
	$target{shared_cflag} = $target{shared_ldflag} =
		$target{shared_rcflag} = "";
	}
R
Richard Levitte 已提交
1032 1033 1034 1035
else
	{
	push @{$config{defines}}, "OPENSSL_PIC";
	}
1036

1037
if ($target{sys_id} ne "")
1038
	{
1039
	push @{$config{openssl_sys_defines}}, "OPENSSL_SYS_$target{sys_id}";
1040 1041
	}

1042
unless ($disabled{asm}) {
1043
    $target{cpuid_asm_src}=$table{DEFAULTS}->{cpuid_asm_src} if ($config{processor} eq "386");
1044
    $target{bn_asm_src} =~ s/\w+-gf2m.c// if (defined($disabled{ec2m}));
1045

1046
    # bn-586 is the only one implementing bn_*_part_words
1047 1048
    push @{$config{defines}}, "OPENSSL_BN_ASM_PART_WORDS" if ($target{bn_asm_src} =~ /bn-586/);
    push @{$config{defines}}, "OPENSSL_IA32_SSE2" if (!$no_sse2 && $target{bn_asm_src} =~ /86/);
1049

1050 1051 1052
    push @{$config{defines}}, "OPENSSL_BN_ASM_MONT" if ($target{bn_asm_src} =~ /-mont/);
    push @{$config{defines}}, "OPENSSL_BN_ASM_MONT5" if ($target{bn_asm_src} =~ /-mont5/);
    push @{$config{defines}}, "OPENSSL_BN_ASM_GF2m" if ($target{bn_asm_src} =~ /-gf2m/);
1053

1054
    if ($config{fips}) {
1055
	push @{$config{openssl_other_defines}}, "OPENSSL_FIPS";
1056
    }
1057

1058
    if ($target{sha1_asm_src}) {
1059 1060 1061
	push @{$config{defines}}, "SHA1_ASM"   if ($target{sha1_asm_src} =~ /sx86/ || $target{sha1_asm_src} =~ /sha1/);
	push @{$config{defines}}, "SHA256_ASM" if ($target{sha1_asm_src} =~ /sha256/);
	push @{$config{defines}}, "SHA512_ASM" if ($target{sha1_asm_src} =~ /sha512/);
1062
    }
1063
    if ($target{md5_asm_src}) {
1064
	push @{$config{defines}}, "MD5_ASM";
1065
    }
1066
    $target{cast_asm_src}=$table{DEFAULTS}->{cast_asm_src} unless $disabled{pic}; # CAST assembler is not PIC
1067
    if ($target{rmd160_asm_src}) {
1068
	push @{$config{defines}}, "RMD160_ASM";
1069
    }
1070
    if ($target{aes_asm_src}) {
1071
	push @{$config{defines}}, "AES_ASM" if ($target{aes_asm_src} =~ m/\baes-/);;
1072
	# aes-ctr.fake is not a real file, only indication that assembler
1073
	# module implements AES_ctr32_encrypt...
1074
	push @{$config{defines}}, "AES_CTR_ASM" if ($target{aes_asm_src} =~ s/\s*aes-ctr\.fake//);
1075
	# aes-xts.fake indicates presence of AES_xts_[en|de]crypt...
1076
	push @{$config{defines}}, "AES_XTS_ASM" if ($target{aes_asm_src} =~ s/\s*aes-xts\.fake//);
1077
	$target{aes_asm_src} =~ s/\s*(vpaes|aesni)-x86\.s//g if ($no_sse2);
1078 1079
	push @{$config{defines}}, "VPAES_ASM" if ($target{aes_asm_src} =~ m/vpaes/);
	push @{$config{defines}}, "BSAES_ASM" if ($target{aes_asm_src} =~ m/bsaes/);
1080
    }
1081
    if ($target{wp_asm_src} =~ /mmx/) {
1082
        if ($config{processor} eq "386") {
1083
	    $target{wp_asm_src}=$table{DEFAULTS}->{wp_asm_src};
1084
	} elsif (!$disabled{"whirlpool"}) {
1085
	    push @{$config{defines}}, "WHIRLPOOL_ASM";
1086
	}
1087
    }
1088
    if ($target{modes_asm_src} =~ /ghash-/) {
1089
	push @{$config{defines}}, "GHASH_ASM";
1090
    }
1091
    if ($target{ec_asm_src} =~ /ecp_nistz256/) {
1092
	push @{$config{defines}}, "ECP_NISTZ256_ASM";
1093
    }
1094
    if ($target{poly1305_asm_src} ne "") {
1095
	push @{$config{defines}}, "POLY1305_ASM";
1096 1097
    }
}
1098

1099
my $ecc = $target{cc};
1100
if ($^O ne "VMS" && !$disabled{makedepend}) {
1101 1102 1103
    # Is the compiler gcc or clang?  $ecc is used below to see if
    # error-checking can be turned on.
    my $ccpcc = "$config{cross_compile_prefix}$target{cc}";
1104 1105
    open(PIPE, "$ccpcc --version 2>&1 |");
    my $lines = 2;
1106
    while ( <PIPE> ) {
1107 1108
        # Find the version number and save the major.
        m|(?:.*)\b(\d+)\.\d+\.\d+\b(?:.*)|;
1109
        my $compiler_major = $1;
1110 1111
        # We know that GNU C version 3 and up as well as all clang
        # versions support dependency generation
1112
        $config{makedepprog} = $ccpcc
1113
            if (/clang/ || (/gcc/ && $compiler_major > 3));
1114 1115
        $ecc = "clang" if /clang/;
        $ecc = "gcc" if /gcc/;
1116
        last if ($config{makedepprog} || !$lines--);
1117 1118
    }
    close(PIPE);
1119

1120
    $config{makedepprog} = which('makedepend') unless $config{makedepprog};
1121
    $disabled{makedepend} = "unavailable" unless $config{makedepprog};
R
Rich Salz 已提交
1122
}
1123

1124

1125

1126 1127 1128 1129 1130 1131
# Deal with bn_ops ###################################################

$config{bn_ll}			=0;
$config{export_var_as_fn}	=0;
my $def_int="unsigned int";
$config{rc4_int}		=$def_int;
R
Rich Salz 已提交
1132
($config{b64l},$config{b64},$config{b32})=(0,0,1);
1133

R
Rich Salz 已提交
1134
my $count = 0;
1135
foreach (sort split(/\s+/,$target{bn_ops})) {
R
Rich Salz 已提交
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145
    $count++ if /SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT/;
    $config{export_var_as_fn}=1                 if $_ eq 'EXPORT_VAR_AS_FN';
    $config{bn_ll}=1				if $_ eq 'BN_LLONG';
    $config{rc4_int}="unsigned char"		if $_ eq 'RC4_CHAR';
    ($config{b64l},$config{b64},$config{b32})
	=(0,1,0)				if $_ eq 'SIXTY_FOUR_BIT';
    ($config{b64l},$config{b64},$config{b32})
	=(1,0,0)				if $_ eq 'SIXTY_FOUR_BIT_LONG';
    ($config{b64l},$config{b64},$config{b32})
	=(0,0,1)				if $_ eq 'THIRTY_TWO_BIT';
1146
}
R
Rich Salz 已提交
1147 1148
die "Exactly one of SIXTY_FOUR_BIT|SIXTY_FOUR_BIT_LONG|THIRTY_TWO_BIT can be set in bn_ops\n"
    if $count > 1;
1149 1150 1151 1152


# Hack cflags for better warnings (dev option) #######################

1153 1154
# "Stringify" the C flags string.  This permits it to be made part of a string
# and works as well on command lines.
R
Richard Levitte 已提交
1155
$config{cflags} =~ s/([\\\"])/\\$1/g;
1156

1157 1158
if (defined($config{api})) {
    $config{openssl_api_defines} = [ "OPENSSL_MIN_API=".$apitable->{$config{api}} ];
1159 1160
    my $apiflag = sprintf("OPENSSL_API_COMPAT=%s", $apitable->{$config{api}});
    push @{$config{defines}}, $apiflag;
1161 1162
}

1163 1164 1165
if ($strict_warnings)
	{
	my $wopt;
R
Rich Salz 已提交
1166 1167
	die "ERROR --strict-warnings requires gcc or clang"
            unless $ecc eq 'gcc' || $ecc eq 'clang';
1168 1169
	foreach $wopt (split /\s+/, $gcc_devteam_warn)
		{
1170
		$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1171
		}
B
Ben Laurie 已提交
1172 1173 1174 1175
	if ($ecc eq "clang")
		{
		foreach $wopt (split /\s+/, $clang_devteam_warn)
			{
1176
			$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
B
Ben Laurie 已提交
1177 1178
			}
		}
1179 1180 1181 1182 1183
	}

unless ($disabled{"crypto-mdebug-backtrace"})
	{
	foreach my $wopt (split /\s+/, $memleak_devteam_backtrace)
1184
		{
1185
		$config{cflags} .= " $wopt" unless ($config{cflags} =~ /(?:^|\s)$wopt(?:\s|$)/)
1186 1187 1188 1189
		}
	if ($target =~ /^BSD-/)
		{
		$config{ex_libs} .= " -lexecinfo";
1190
		}
1191 1192
	}

1193 1194 1195 1196 1197 1198 1199
if ($user_cflags ne "") { $config{cflags}="$config{cflags}$user_cflags"; }
else                    { $no_user_cflags=1;  }
if (@user_defines) { $config{defines}=[ @{$config{defines}}, @user_defines ]; }
else               { $no_user_defines=1;    }

# ALL MODIFICATIONS TO %config and %target MUST BE DONE FROM HERE ON

1200 1201
unless ($disabled{afalgeng}) {
    $config{afalgeng}="";
1202 1203 1204 1205 1206 1207 1208 1209
    if ($target =~ m/^linux/) {
        my $minver = 4*10000 + 1*100 + 0;
        if ($config{cross_compile_prefix} eq "") {
            my $verstr = `uname -r`;
            my ($ma, $mi1, $mi2) = split("\\.", $verstr);
            ($mi2) = $mi2 =~ /(\d+)/;
            my $ver = $ma*10000 + $mi1*100 + $mi2;
            if ($ver < $minver) {
1210
                $disabled{afalgeng} = "too-old-kernel";
1211 1212 1213
            } else {
                push @{$config{engdirs}}, "afalg";
            }
1214 1215
        } else {
            $disabled{afalgeng} = "cross-compiling";
C
clucey 已提交
1216
        }
1217
    } else {
1218
        $disabled{afalgeng}  = "not-linux";
C
clucey 已提交
1219 1220
    }
}
M
Matt Caswell 已提交
1221

1222
push @{$config{openssl_other_defines}}, "OPENSSL_NO_AFALGENG" if ($disabled{afalgeng});
C
clucey 已提交
1223

1224 1225 1226
# If we use the unified build, collect information from build.info files
my %unified_info = ();

1227
my $buildinfo_debug = defined($ENV{CONFIGURE_DEBUG_BUILDINFO});
1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238
if ($builder eq "unified") {
    # Store the name of the template file we will build the build file from
    # in %config.  This may be useful for the build file itself.
    my $build_file_template =
        catfile($srcdir, "Configurations",
                $builder_platform."-".$target{build_file}.".tmpl");
    $build_file_template =
        catfile($srcdir, "Configurations", $target{build_file}.".tmpl")
        if (! -f $build_file_template);
    $config{build_file_template} = $build_file_template;

1239 1240 1241 1242
    use lib catdir(dirname(__FILE__),"util");
    use with_fallback qw(Text::Template);

    sub cleandir {
1243
        my $base = shift;
1244
        my $dir = shift;
1245 1246 1247
        my $relativeto = shift || ".";

        $dir = catdir($base,$dir) unless isabsolute($dir);
1248

1249 1250 1251
        # Make sure the directories we're building in exists
        mkpath($dir);

1252
        my $res = abs2rel(absolutedir($dir), rel2abs($relativeto));
1253 1254 1255 1256 1257
        #print STDERR "DEBUG[cleandir]: $dir , $base => $res\n";
        return $res;
    }

    sub cleanfile {
1258
        my $base = shift;
1259
        my $file = shift;
1260 1261 1262 1263
        my $relativeto = shift || ".";

        $file = catfile($base,$file) unless isabsolute($file);

1264 1265 1266
        my $d = dirname($file);
        my $f = basename($file);

1267 1268 1269
        # Make sure the directories we're building in exists
        mkpath($d);

1270
        my $res = abs2rel(catfile(absolutedir($d), $f), rel2abs($relativeto));
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288
        #print STDERR "DEBUG[cleanfile]: $d , $f => $res\n";
        return $res;
    }

    my @build_infos = ( [ ".", "build.info" ] );
    foreach (@{$config{dirs}}) {
        push @build_infos, [ $_, "build.info" ]
            if (-f catfile($srcdir, $_, "build.info"));
    }
    foreach (@{$config{sdirs}}) {
        push @build_infos, [ catdir("crypto", $_), "build.info" ]
            if (-f catfile($srcdir, "crypto", $_, "build.info"));
    }
    foreach (@{$config{engdirs}}) {
        push @build_infos, [ catdir("engines", $_), "build.info" ]
            if (-f catfile($srcdir, "engines", $_, "build.info"));
    }

1289 1290
    $config{build_infos} = [ ];

1291 1292 1293 1294
    foreach (@build_infos) {
        my $sourced = catdir($srcdir, $_->[0]);
        my $buildd = catdir($blddir, $_->[0]);

1295
        mkpath($buildd);
1296 1297 1298 1299 1300 1301 1302 1303

        my $f = $_->[1];
        # The basic things we're trying to build
        my @programs = ();
        my @libraries = ();
        my @engines = ();
        my @scripts = ();
        my @extra = ();
1304
        my @overrides = ();
1305 1306 1307 1308 1309
        my @intermediates = ();
        my @rawlines = ();

        my %ordinals = ();
        my %sources = ();
1310
        my %shared_sources = ();
1311 1312 1313 1314
        my %includes = ();
        my %depends = ();
        my %renames = ();
        my %sharednames = ();
1315
        my %generate = ();
1316

1317
        push @{$config{build_infos}}, catfile(abs2rel($sourced, $blddir), $f);
1318 1319 1320 1321 1322 1323 1324
        my $template = Text::Template->new(TYPE => 'FILE',
                                           SOURCE => catfile($sourced, $f));
        die "Something went wrong with $sourced/$f: $!\n" unless $template;
        my @text =
            split /^/m,
            $template->fill_in(HASH => { config => \%config,
                                         target => \%target,
1325
                                         disabled => \%disabled,
1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344
                                         builddir => abs2rel($buildd, $blddir),
                                         sourcedir => abs2rel($sourced, $blddir),
                                         buildtop => abs2rel($blddir, $blddir),
                                         sourcetop => abs2rel($srcdir, $blddir) },
                               DELIMITERS => [ "{-", "-}" ]);

        # The top item of this stack has the following values
        # -2 positive already run and we found ELSE (following ELSIF should fail)
        # -1 positive already run (skip until ENDIF)
        # 0 negatives so far (if we're at a condition, check it)
        # 1 last was positive (don't skip lines until next ELSE, ELSIF or ENDIF)
        # 2 positive ELSE (following ELSIF should fail)
        my @skip = ();
        collect_information(
            collect_from_array([ @text ],
                               qr/\\$/ => sub { my $l1 = shift; my $l2 = shift;
                                                $l1 =~ s/\\$//; $l1.$l2 }),
            # Info we're looking for
            qr/^\s*IF\[((?:\\.|[^\\\]])*)\]\s*$/
1345
            => sub {
1346
                if (! @skip || $skip[$#skip] > 0) {
1347 1348 1349 1350 1351
                    push @skip, !! $1;
                } else {
                    push @skip, -1;
                }
            },
1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379
            qr/^\s*ELSIF\[((?:\\.|[^\\\]])*)\]\s*$/
            => sub { die "ELSIF out of scope" if ! @skip;
                     die "ELSIF following ELSE" if abs($skip[$#skip]) == 2;
                     $skip[$#skip] = -1 if $skip[$#skip] != 0;
                     $skip[$#skip] = !! $1
                         if $skip[$#skip] == 0; },
            qr/^\s*ELSE\s*$/
            => sub { die "ELSE out of scope" if ! @skip;
                     $skip[$#skip] = -2 if $skip[$#skip] != 0;
                     $skip[$#skip] = 2 if $skip[$#skip] == 0; },
            qr/^\s*ENDIF\s*$/
            => sub { die "ENDIF out of scope" if ! @skip;
                     pop @skip; },
            qr/^\s*PROGRAMS\s*=\s*(.*)\s*$/
            => sub { push @programs, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*LIBS\s*=\s*(.*)\s*$/
            => sub { push @libraries, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*ENGINES\s*=\s*(.*)\s*$/
            => sub { push @engines, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*SCRIPTS\s*=\s*(.*)\s*$/
            => sub { push @scripts, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*EXTRA\s*=\s*(.*)\s*$/
            => sub { push @extra, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
1380 1381 1382
            qr/^\s*OVERRIDES\s*=\s*(.*)\s*$/
            => sub { push @overrides, split(/\s+/, $1)
                         if !@skip || $skip[$#skip] > 0 },
1383 1384 1385 1386 1387 1388 1389

            qr/^\s*ORDINALS\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/,
            => sub { push @{$ordinals{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$sources{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
1390 1391 1392
            qr/^\s*SHARED_SOURCE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$shared_sources{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
1393 1394 1395 1396 1397 1398
            qr/^\s*INCLUDE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$includes{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*DEPEND\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$depends{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
1399 1400 1401
            qr/^\s*GENERATE\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$generate{$1}}, $2
                         if !@skip || $skip[$#skip] > 0 },
1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
            qr/^\s*RENAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$renames{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*SHARED_NAME\[((?:\\.|[^\\\]])+)\]\s*=\s*(.*)\s*$/
            => sub { push @{$sharednames{$1}}, split(/\s+/, $2)
                         if !@skip || $skip[$#skip] > 0 },
            qr/^\s*BEGINRAW\[((?:\\.|[^\\\]])+)\]\s*$/
            => sub {
                my $lineiterator = shift;
                my $target_kind = $1;
                while (defined $lineiterator->()) {
R
Richard Levitte 已提交
1413
                    s|\R$||;
1414 1415 1416 1417 1418 1419 1420 1421
                    if (/^\s*ENDRAW\[((?:\\.|[^\\\]])+)\]\s*$/) {
                        die "ENDRAW doesn't match BEGINRAW"
                            if $1 ne $target_kind;
                        last;
                    }
                    next if @skip && $skip[$#skip] <= 0;
                    push @rawlines,  $_
                        if ($target_kind eq $target{build_file}
1422
                            || $target_kind eq $target{build_file}."(".$builder_platform.")");
1423 1424 1425
                }
            },
            qr/^(?:#.*|\s*)$/ => sub { },
1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437
            "OTHERWISE" => sub { die "Something wrong with this line:\n$_\nat $sourced/$f" },
            "BEFORE" => sub {
                if ($buildinfo_debug) {
                    print STDERR "DEBUG: Parsing ",join(" ", @_),"\n";
                    print STDERR "DEBUG: ... before parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
                }
            },
            "AFTER" => sub {
                if ($buildinfo_debug) {
                    print STDERR "DEBUG: .... after parsing, skip stack is ",join(" ", map { int($_) } @skip),"\n";
                }
            },
1438 1439 1440 1441 1442 1443 1444
            );
        die "runaway IF?" if (@skip);

        foreach (keys %renames) {
            die "$_ renamed to more than one thing: "
                ,join(" ", @{$renames{$_}}),"\n"
                if scalar @{$renames{$_}} > 1;
1445 1446
            my $dest = cleanfile($buildd, $_, $blddir);
            my $to = cleanfile($buildd, $renames{$_}->[0], $blddir);
1447 1448 1449 1450 1451 1452 1453 1454
            die "$dest renamed to more than one thing: "
                ,$unified_info{rename}->{$dest}, $to
                unless !defined($unified_info{rename}->{$dest})
                or $unified_info{rename}->{$dest} eq $to;
            $unified_info{rename}->{$dest} = $to;
        }

        foreach (@programs) {
1455
            my $program = cleanfile($buildd, $_, $blddir);
1456 1457 1458 1459 1460 1461 1462
            if ($unified_info{rename}->{$program}) {
                $program = $unified_info{rename}->{$program};
            }
            $unified_info{programs}->{$program} = 1;
        }

        foreach (@libraries) {
1463
            my $library = cleanfile($buildd, $_, $blddir);
1464 1465 1466 1467 1468 1469
            if ($unified_info{rename}->{$library}) {
                $library = $unified_info{rename}->{$library};
            }
            $unified_info{libraries}->{$library} = 1;
        }

1470
        die <<"EOF" if scalar @engines and !$config{dynamic_engines};
1471
ENGINES can only be used if configured with 'dynamic-engine'.
1472 1473 1474
This is usually a fault in a build.info file.
EOF
        foreach (@engines) {
1475
            my $library = cleanfile($buildd, $_, $blddir);
1476 1477 1478 1479 1480 1481 1482
            if ($unified_info{rename}->{$library}) {
                $library = $unified_info{rename}->{$library};
            }
            $unified_info{engines}->{$library} = 1;
        }

        foreach (@scripts) {
1483
            my $script = cleanfile($buildd, $_, $blddir);
1484 1485 1486 1487 1488 1489 1490
            if ($unified_info{rename}->{$script}) {
                $script = $unified_info{rename}->{$script};
            }
            $unified_info{scripts}->{$script} = 1;
        }

        foreach (@extra) {
1491
            my $extra = cleanfile($buildd, $_, $blddir);
1492 1493 1494
            $unified_info{extra}->{$extra} = 1;
        }

1495 1496 1497 1498 1499
        foreach (@overrides) {
            my $override = cleanfile($buildd, $_, $blddir);
            $unified_info{overrides}->{$override} = 1;
        }

1500 1501
        push @{$unified_info{rawlines}}, @rawlines;

1502
        unless ($disabled{shared}) {
1503 1504
            # Check sharednames.
            foreach (keys %sharednames) {
1505
                my $dest = cleanfile($buildd, $_, $blddir);
1506 1507 1508 1509 1510 1511
                if ($unified_info{rename}->{$dest}) {
                    $dest = $unified_info{rename}->{$dest};
                }
                die "shared_name for $dest with multiple values: "
                    ,join(" ", @{$sharednames{$_}}),"\n"
                    if scalar @{$sharednames{$_}} > 1;
1512
                my $to = cleanfile($buildd, $sharednames{$_}->[0], $blddir);
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532
                die "shared_name found for a library $dest that isn't defined\n"
                    unless $unified_info{libraries}->{$dest};
                die "shared_name for $dest with multiple values: "
                    ,$unified_info{sharednames}->{$dest}, ", ", $to
                    unless !defined($unified_info{sharednames}->{$dest})
                    or $unified_info{sharednames}->{$dest} eq $to;
                $unified_info{sharednames}->{$dest} = $to;
            }

            # Additionally, we set up sharednames for libraries that don't
            # have any, as themselves.
            foreach (keys %{$unified_info{libraries}}) {
                if (!defined $unified_info{sharednames}->{$_}) {
                    $unified_info{sharednames}->{$_} = $_
                }
            }
        }

        foreach (keys %ordinals) {
            my $dest = $_;
1533
            my $ddest = cleanfile($buildd, $_, $blddir);
1534 1535 1536 1537 1538 1539 1540
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            foreach (@{$ordinals{$dest}}) {
                my %known_ordinals =
                    (
                     crypto =>
1541
                     cleanfile($sourced, catfile("util", "libcrypto.num"), $blddir),
1542
                     ssl =>
1543
                     cleanfile($sourced, catfile("util", "libssl.num"), $blddir)
1544 1545 1546 1547 1548 1549 1550 1551 1552 1553
                    );
                my $o = $known_ordinals{$_};
                die "Ordinals for $ddest defined more than once\n"
                    if $unified_info{ordinals}->{$ddest};
                $unified_info{ordinals}->{$ddest} = [ $_, $o ];
            }
        }

        foreach (keys %sources) {
            my $dest = $_;
1554
            my $ddest = cleanfile($buildd, $_, $blddir);
1555 1556 1557 1558
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            foreach (@{$sources{$dest}}) {
1559
                my $s = cleanfile($sourced, $_, $blddir);
1560 1561 1562 1563

                # If it isn't in the source tree, we assume it's generated
                # in the build tree
                if (! -f $s) {
1564
                    $s = cleanfile($buildd, $_, $blddir);
1565 1566 1567 1568
                }
                # We recognise C and asm files
                if ($s =~ /\.[csS]\b$/) {
                    (my $o = $_) =~ s/\.[csS]\b$/.o/;
1569
                    $o = cleanfile($buildd, $o, $blddir);
1570 1571 1572 1573 1574 1575 1576 1577
                    $unified_info{sources}->{$ddest}->{$o} = 1;
                    $unified_info{sources}->{$o}->{$s} = 1;
                } else {
                    $unified_info{sources}->{$ddest}->{$s} = 1;
                }
            }
        }

1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603
        foreach (keys %shared_sources) {
            my $dest = $_;
            my $ddest = cleanfile($buildd, $_, $blddir);
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            foreach (@{$shared_sources{$dest}}) {
                my $s = cleanfile($sourced, $_, $blddir);

                # If it isn't in the source tree, we assume it's generated
                # in the build tree
                if (! -f $s) {
                    $s = cleanfile($buildd, $_, $blddir);
                }
                # We recognise C and asm files
                if ($s =~ /\.[csS]\b$/) {
                    (my $o = $_) =~ s/\.[csS]\b$/.o/;
                    $o = cleanfile($buildd, $o, $blddir);
                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
                    $unified_info{sources}->{$o}->{$s} = 1;
                } else {
                    die "unrecognised source file type for shared library: $s\n";
                }
            }
        }

1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617
        foreach (keys %generate) {
            my $dest = $_;
            my $ddest = cleanfile($buildd, $_, $blddir);
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            die "more than one generator for $dest: "
                    ,join(" ", @{$generate{$_}}),"\n"
                    if scalar @{$generate{$_}} > 1;
            my @generator = split /\s+/, $generate{$dest}->[0];
            $generator[0] = cleanfile($sourced, $generator[0], $blddir),
            $unified_info{generate}->{$ddest} = [ @generator ];
        }

1618 1619
        foreach (keys %depends) {
            my $dest = $_;
1620
            my $ddest = cleanfile($buildd, $_, $blddir);
1621 1622 1623 1624
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            foreach (@{$depends{$dest}}) {
1625
                my $d = cleanfile($sourced, $_, $blddir);
1626

1627 1628 1629 1630 1631 1632
                # If we know it's generated, or assume it is because we can't
                # find it in the source tree, we set file we depend on to be
                # in the build tree rather than the source tree, and assume
                # and that there are lines to build it in a BEGINRAW..ENDRAW
                # section or in the Makefile template.
                if (! -f $d
1633 1634 1635
                    || (grep { $d eq $_ }
                        map { cleanfile($srcdir, $_, $blddir) }
                        (@generated_headers, @generated_by_make_headers))) {
1636
                    $d = cleanfile($buildd, $_, $blddir);
1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654
                }
                # Take note if the file to depend on is being renamed
                if ($unified_info{rename}->{$d}) {
                    $d = $unified_info{rename}->{$d};
                }
                $unified_info{depends}->{$ddest}->{$d} = 1;
                # If we depend on a header file, let's make sure it
                # can get included
                if ($d =~ /\.h$/) {
                    my $i = dirname($d);
                    push @{$unified_info{includes}->{$ddest}}, $i
                        unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}};
                }
            }
        }

        foreach (keys %includes) {
            my $dest = $_;
1655
            my $ddest = cleanfile($buildd, $_, $blddir);
1656 1657 1658 1659
            if ($unified_info{rename}->{$ddest}) {
                $ddest = $unified_info{rename}->{$ddest};
            }
            foreach (@{$includes{$dest}}) {
1660
                my $i = cleandir($sourced, $_, $blddir);
1661 1662 1663 1664 1665 1666 1667 1668
                push @{$unified_info{includes}->{$ddest}}, $i
                    unless grep { $_ eq $i } @{$unified_info{includes}->{$ddest}};
            }
        }
    }

    ### Make unified_info a bit more efficient
    # One level structures
1669
    foreach (("programs", "libraries", "engines", "scripts", "extra", "overrides")) {
1670 1671 1672
        $unified_info{$_} = [ sort keys %{$unified_info{$_}} ];
    }
    # Two level structures
1673
    foreach my $l1 (("sources", "shared_sources", "ldadd", "depends")) {
1674 1675 1676 1677 1678 1679 1680 1681 1682
        foreach my $l2 (sort keys %{$unified_info{$l1}}) {
            $unified_info{$l1}->{$l2} =
                [ sort keys %{$unified_info{$l1}->{$l2}} ];
        }
    }
}

# For the schemes that need it, we provide the old *_obj configs
# from the *_asm_obj ones
1683
foreach (grep /_(asm|aux)_src$/, keys %target) {
1684
    my $src = $_;
1685
    (my $obj = $_) =~ s/_(asm|aux)_src$/_obj/;
1686 1687 1688
    ($target{$obj} = $target{$src}) =~ s/\.[csS]\b/.o/g;
}

1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700
# Write down our configuration where it fits #########################

open(OUT,">configdata.pm") || die "unable to create configdata.pm: $!\n";
print OUT <<"EOF";
package configdata;

use strict;
use warnings;

use Exporter;
#use vars qw(\@ISA \@EXPORT);
our \@ISA = qw(Exporter);
1701
our \@EXPORT = qw(\%config \%target \%disabled \%withargs \%unified_info \@disablables);
1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730

EOF
print OUT "our %config = (\n";
foreach (sort keys %config) {
    if (ref($config{$_}) eq "ARRAY") {
	print OUT "  ", $_, " => [ ", join(", ",
					   map { quotify("perl", $_) }
					   @{$config{$_}}), " ],\n";
    } else {
	print OUT "  ", $_, " => ", quotify("perl", $config{$_}), ",\n"
    }
}
print OUT <<"EOF";
);

EOF
print OUT "our %target = (\n";
foreach (sort keys %target) {
    if (ref($target{$_}) eq "ARRAY") {
	print OUT "  ", $_, " => [ ", join(", ",
					   map { quotify("perl", $_) }
					   @{$target{$_}}), " ],\n";
    } else {
	print OUT "  ", $_, " => ", quotify("perl", $target{$_}), ",\n"
    }
}
print OUT <<"EOF";
);

1731 1732 1733 1734 1735 1736 1737
EOF
print OUT "our \%available_protocols = (\n";
print OUT "  tls => [ ", join(", ", map { quotify("perl", $_) } @tls), " ],\n";
print OUT "  dtls => [ ", join(", ", map { quotify("perl", $_) } @dtls), " ],\n";
print OUT <<"EOF";
);

1738 1739 1740 1741 1742 1743 1744 1745
EOF
print OUT "our \@disablables = (\n";
foreach (@disablables) {
    print OUT "  ", quotify("perl", $_), ",\n";
}
print OUT <<"EOF";
);

1746 1747 1748 1749 1750 1751 1752 1753
EOF
print OUT "our \%disabled = (\n";
foreach (sort keys %disabled) {
    print OUT "  ", quotify("perl", $_), " => ", quotify("perl", $disabled{$_}), ",\n";
}
print OUT <<"EOF";
);

1754
EOF
1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766
print OUT "our %withargs = (\n";
foreach (sort keys %withargs) {
    if (ref($withargs{$_}) eq "ARRAY") {
	print OUT "  ", $_, " => [ ", join(", ",
					   map { quotify("perl", $_) }
					   @{$withargs{$_}}), " ],\n";
    } else {
	print OUT "  ", $_, " => ", quotify("perl", $withargs{$_}), ",\n"
    }
}
print OUT <<"EOF";
);
1767

1768
EOF
1769
if ($builder eq "unified") {
1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811
    my $recurse;
    $recurse = sub {
        my $indent = shift;
        foreach (@_) {
            if (ref $_ eq "ARRAY") {
                print OUT " "x$indent, "[\n";
                foreach (@$_) {
                    $recurse->($indent + 4, $_);
                }
                print OUT " "x$indent, "],\n";
            } elsif (ref $_ eq "HASH") {
                my %h = %$_;
                print OUT " "x$indent, "{\n";
                foreach (sort keys %h) {
                    if (ref $h{$_} eq "") {
                        print OUT " "x($indent + 4), quotify("perl", $_), " => ", quotify("perl", $h{$_}), ",\n";
                    } else {
                        print OUT " "x($indent + 4), quotify("perl", $_), " =>\n";
                        $recurse->($indent + 8, $h{$_});
                    }
                }
                print OUT " "x$indent, "},\n";
            } else {
                print OUT " "x$indent, quotify("perl", $_), ",\n";
            }
        }
    };
    print OUT "our %unified_info = (\n";
    foreach (sort keys %unified_info) {
        if (ref $unified_info{$_} eq "") {
            print OUT " "x4, quotify("perl", $_), " => ", quotify("perl", $unified_info{$_}), ",\n";
        } else {
            print OUT " "x4, quotify("perl", $_), " =>\n";
            $recurse->(8, $unified_info{$_});
        }
    }
    print OUT <<"EOF";
);

EOF
}
print OUT "1;\n";
1812
close(OUT);
1813

1814

1815
print "CC            =$target{cc}\n";
1816
print "CFLAG         =$target{cflags} $config{cflags}\n";
1817
print "SHARED_CFLAG  =$target{shared_cflag}\n";
1818
print "DEFINES       =",join(" ", @{$target{defines}}, @{$config{defines}}),"\n";
1819 1820
print "LFLAG         =$target{lflags}\n";
print "PLIB_LFLAG    =$target{plib_lflags}\n";
1821
print "EX_LIBS       =$target{ex_libs} $config{ex_libs}\n";
1822
print "APPS_OBJ      =$target{apps_obj}\n";
1823
print "CPUID_OBJ     =$target{cpuid_obj}\n";
1824
print "UPLINK_OBJ    =$target{uplink_obj}\n";
1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837
print "BN_ASM        =$target{bn_obj}\n";
print "EC_ASM        =$target{ec_obj}\n";
print "DES_ENC       =$target{des_obj}\n";
print "AES_ENC       =$target{aes_obj}\n";
print "BF_ENC        =$target{bf_obj}\n";
print "CAST_ENC      =$target{cast_obj}\n";
print "RC4_ENC       =$target{rc4_obj}\n";
print "RC5_ENC       =$target{rc5_obj}\n";
print "MD5_OBJ_ASM   =$target{md5_obj}\n";
print "SHA1_OBJ_ASM  =$target{sha1_obj}\n";
print "RMD160_OBJ_ASM=$target{rmd160_obj}\n";
print "CMLL_ENC      =$target{cmll_obj}\n";
print "MODES_OBJ     =$target{modes_obj}\n";
R
Richard Levitte 已提交
1838
print "PADLOCK_OBJ   =$target{padlock_obj}\n";
1839 1840
print "CHACHA_ENC    =$target{chacha_obj}\n";
print "POLY1305_OBJ  =$target{poly1305_obj}\n";
B
Bill Cox 已提交
1841
print "BLAKE2_OBJ    =$target{blake2_obj}\n";
1842
print "PROCESSOR     =$config{processor}\n";
1843 1844 1845
print "RANLIB        =$target{ranlib}\n";
print "ARFLAGS       =$target{arflags}\n";
print "PERL          =$config{perl}\n";
R
Richard Levitte 已提交
1846
print "\n";
1847 1848 1849 1850
print "SIXTY_FOUR_BIT_LONG mode\n" if $config{b64l};
print "SIXTY_FOUR_BIT mode\n" if $config{b64};
print "THIRTY_TWO_BIT mode\n" if $config{b32};
print "BN_LLONG mode\n" if $config{bn_ll};
R
Richard Levitte 已提交
1851
print "RC4 uses $config{rc4_int}\n" if $config{rc4_int} ne $def_int;
B
Ben Laurie 已提交
1852

1853 1854 1855 1856
for (@generated_headers) {
    mkpath(catdir($blddir, dirname($_)));
    run_dofile(catfile($blddir, $_),
               catfile($srcdir, $_.".in"));
R
Richard Levitte 已提交
1857 1858
}

1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889
###
### When the old "unixmake" scheme goes away, so does this function
###
sub build_Makefile {
    run_dofile("Makefile","Makefile.in");

    # Copy all Makefile.in to Makefile (except top-level)
    use File::Find;
    use IO::File;
    find(
        {
            preprocess => sub {
                grep(!/^\./, @_);
            },
            wanted => sub {
                return if ($_ ne "Makefile.in" || $File::Find::dir eq ".");
                my $in = IO::File->new($_, "r") or
                    die sprintf "Error reading Makefile.in in %s: !$\n",
                    $File::Find::dir;
                my $out = IO::File->new("Makefile", "w") or
                    die sprintf "Error writing Makefile in %s: !$\n",
                    $File::Find::dir;
                print $out "# Generated from $_, do not edit\n";
                while (my $line = <$in>) { print $out $line }
                $in->close() or
                    die sprintf "Error reading Makefile.in in %s: !$\n",
                    $File::Find::dir;
                $out->close() or
                    die sprintf "Error writing Makefile in %s: !$\n",
                    $File::Find::dir;
            },
1890
        },
1891 1892
        ".");
}
R
Rich Salz 已提交
1893

1894
my %builders = (
1895
    unified => sub {
1896 1897 1898
        run_dofile(catfile($blddir, $target{build_file}),
                   $config{build_file_template},
                   catfile($srcdir, "Configurations", "common.tmpl"));
1899
    },
1900
    unixmake => sub {
1901 1902 1903 1904
        build_Makefile();

        run_dofile("util/domd", "util/domd.in");
        chmod 0755, "util/domd";
1905 1906 1907
    },
    );

1908
$builders{$builder}->($builder_platform, @builder_opts);
1909

1910
print <<"EOF";
1911

1912
Configured for $target.
1913
EOF
1914

1915
print <<"EOF" if ($disabled{threads} eq "unavailable");
1916 1917 1918

The library could not be configured for supporting multi-threaded
applications as the compiler options required on this system are not known.
1919
See file INSTALL for details if you need multi-threading.
1920 1921
EOF

1922
print <<"EOF" if ($no_shared_warn);
1923

1924 1925 1926 1927 1928
The options 'shared', 'pic' and 'dynamic-engine' aren't supported on this
platform, so we will pretend you gave the option 'no-pic', which also disables
'shared' and 'dynamic-engine'.  If you know how to implement shared libraries
or position independent code, please let us know (but please first make sure
you have tried with a current version of OpenSSL).
R
Rich Salz 已提交
1929 1930
EOF

1931 1932
exit(0);

1933 1934 1935 1936 1937 1938 1939
######################################################################
#
# Helpers and utility functions
#

# Configuration file reading #########################################

1940 1941 1942 1943 1944
# Note: All of the helper functions are for lazy evaluation.  They all
# return a CODE ref, which will return the intended value when evaluated.
# Thus, whenever there's mention of a returned value, it's about that
# intended value.

1945
# Helper function to implement conditional inheritance depending on the
1946
# value of $disabled{asm}.  Used in inherit_from values as follows:
1947 1948 1949 1950 1951 1952
#
#      inherit_from => [ "template", asm("asm_tmpl") ]
#
sub asm {
    my @x = @_;
    sub {
1953
	$disabled{asm} ? () : @x;
1954 1955 1956
    }
}

1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003
# Helper function to implement conditional value variants, with a default
# plus additional values based on the value of $config{build_type}.
# Arguments are given in hash table form:
#
#       picker(default => "Basic string: ",
#              debug   => "debug",
#              release => "release")
#
# When configuring with --debug, the resulting string will be
# "Basic string: debug", and when not, it will be "Basic string: release"
#
# This can be used to create variants of sets of flags according to the
# build type:
#
#       cflags => picker(default => "-Wall",
#                        debug   => "-g -O0",
#                        release => "-O3")
#
sub picker {
    my %opts = @_;
    return sub { add($opts{default} || (),
                     $opts{$config{build_type}} || ())->(); }
}

# Helper function to combine several values of different types into one.
# This is useful if you want to combine a string with the result of a
# lazy function, such as:
#
#       cflags => combine("-Wall", sub { $disabled{zlib} ? () : "-DZLIB" })
#
sub combine {
    my @stuff = @_;
    return sub { add(@stuff)->(); }
}

# Helper function to implement conditional values depending on the value
# of $disabled{threads}.  Can be used as follows:
#
#       cflags => combine("-Wall", threads("-pthread"))
#
sub threads {
    my @flags = @_;
    return sub { add($disabled{threads} ? () : @flags)->(); }
}



2004
our $add_called = 0;
2005 2006 2007 2008 2009
# Helper function to implement adding values to already existing configuration
# values.  It handles elements that are ARRAYs, CODEs and scalars
sub _add {
    my $separator = shift;

2010 2011 2012 2013
    # If there's any ARRAY in the collection of values OR the separator
    # is undef, we will return an ARRAY of combined values, otherwise a
    # string of joined values with $separator as the separator.
    my $found_array = !defined($separator);
2014 2015 2016

    my @values =
	map {
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027
	    my $res = $_;
	    while (ref($res) eq "CODE") {
		$res = $res->();
	    }
	    if (defined($res)) {
		if (ref($res) eq "ARRAY") {
		    $found_array = 1;
		    @$res;
		} else {
		    $res;
		}
2028
	    } else {
2029
		();
2030 2031 2032
	    }
    } (@_);

2033 2034
    $add_called = 1;

2035 2036 2037
    if ($found_array) {
	[ @values ];
    } else {
2038
	join($separator, grep { defined($_) && $_ ne "" } @values);
2039 2040 2041
    }
}
sub add_before {
2042 2043 2044 2045 2046
    my $separator = " ";
    if (ref($_[$#_]) eq "HASH") {
        my $opts = pop;
        $separator = $opts->{separator};
    }
2047 2048 2049 2050
    my @x = @_;
    sub { _add($separator, @x, @_) };
}
sub add {
2051 2052 2053 2054 2055
    my $separator = " ";
    if (ref($_[$#_]) eq "HASH") {
        my $opts = pop;
        $separator = $opts->{separator};
    }
2056 2057 2058 2059
    my @x = @_;
    sub { _add($separator, @_, @x) };
}

2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095
# configuration reader, evaluates the input file as a perl script and expects
# it to fill %targets with target configurations.  Those are then added to
# %table.
sub read_config {
    my $fname = shift;
    open(CONFFILE, "< $fname")
	or die "Can't open configuration file '$fname'!\n";
    my $x = $/;
    undef $/;
    my $content = <CONFFILE>;
    $/ = $x;
    close(CONFFILE);
    my %targets = ();
    {
	local %table = %::table;    # Protect %table from tampering

	eval $content;
	warn $@ if $@;
    }

    # For each target, check that it's configured with a hash table.
    foreach (keys %targets) {
	if (ref($targets{$_}) ne "HASH") {
	    if (ref($targets{$_}) eq "") {
		warn "Deprecated target configuration for $_, ignoring...\n";
	    } else {
		warn "Misconfigured target configuration for $_ (should be a hash table), ignoring...\n";
	    }
	    delete $targets{$_};
	}
    }

    %table = (%table, %targets);

}

R
Rich Salz 已提交
2096 2097
# configuration resolver.  Will only resolve all the lazy evalutation
# codeblocks for the chozen target and all those it inherits from,
2098 2099 2100 2101 2102
# recursively
sub resolve_config {
    my $target = shift;
    my @breadcrumbs = @_;

2103
#    my $extra_checks = defined($ENV{CONFIGURE_EXTRA_CHECKS});
2104

2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149
    if (grep { $_ eq $target } @breadcrumbs) {
	die "inherit_from loop!  target backtrace:\n  "
	    ,$target,"\n  ",join("\n  ", @breadcrumbs),"\n";
    }

    if (!defined($table{$target})) {
	warn "Warning! target $target doesn't exist!\n";
	return ();
    }
    # Recurse through all inheritances.  They will be resolved on the
    # fly, so when this operation is done, they will all just be a
    # bunch of attributes with string values.
    # What we get here, though, are keys with references to lists of
    # the combined values of them all.  We will deal with lists after
    # this stage is done.
    my %combined_inheritance = ();
    if ($table{$target}->{inherit_from}) {
	my @inherit_from =
	    map { ref($_) eq "CODE" ? $_->() : $_ } @{$table{$target}->{inherit_from}};
	foreach (@inherit_from) {
	    my %inherited_config = resolve_config($_, $target, @breadcrumbs);

	    # 'template' is a marker that's considered private to
	    # the config that had it.
	    delete $inherited_config{template};

	    map {
		if (!$combined_inheritance{$_}) {
		    $combined_inheritance{$_} = [];
		}
		push @{$combined_inheritance{$_}}, $inherited_config{$_};
	    } keys %inherited_config;
	}
    }

    # We won't need inherit_from in this target any more, since we've
    # resolved all the inheritances that lead to this
    delete $table{$target}->{inherit_from};

    # Now is the time to deal with those lists.  Here's the place to
    # decide what shall be done with those lists, all based on the
    # values of the target we're currently dealing with.
    # - If a value is a coderef, it will be executed with the list of
    #   inherited values as arguments.
    # - If the corresponding key doesn't have a value at all or is the
R
Rich Salz 已提交
2150
    #   emoty string, the inherited value list will be run through the
2151 2152 2153 2154
    #   default combiner (below), and the result becomes this target's
    #   value.
    # - Otherwise, this target's value is assumed to be a string that
    #   will simply override the inherited list of values.
2155
    my $default_combiner = add();
2156 2157 2158 2159

    my %all_keys =
	map { $_ => 1 } (keys %combined_inheritance,
			 keys %{$table{$target}});
2160 2161 2162 2163 2164 2165 2166

    sub process_values {
	my $object    = shift;
	my $inherited = shift;  # Always a [ list ]
	my $target    = shift;
	my $entry     = shift;

2167 2168
        $add_called = 0;

2169 2170 2171 2172 2173 2174 2175
        while(ref($object) eq "CODE") {
            $object = $object->(@$inherited);
        }
        if (!defined($object)) {
            return ();
        }
        elsif (ref($object) eq "ARRAY") {
2176
            local $add_called;  # To make sure recursive calls don't affect it
2177 2178 2179 2180 2181 2182 2183 2184 2185 2186
            return [ map { process_values($_, $inherited, $target, $entry) }
                     @$object ];
        } elsif (ref($object) eq "") {
            return $object;
        } else {
            die "cannot handle reference type ",ref($object)
                ," found in target ",$target," -> ",$entry,"\n";
        }
    }

2187
    foreach (sort keys %all_keys) {
2188
        my $previous = $combined_inheritance{$_};
2189 2190 2191 2192 2193 2194 2195 2196

	# Current target doesn't have a value for the current key?
	# Assign it the default combiner, the rest of this loop body
	# will handle it just like any other coderef.
	if (!exists $table{$target}->{$_}) {
	    $table{$target}->{$_} = $default_combiner;
	}

2197 2198 2199 2200 2201 2202
	$table{$target}->{$_} = process_values($table{$target}->{$_},
					       $combined_inheritance{$_},
					       $target, $_);
        unless(defined($table{$target}->{$_})) {
            delete $table{$target}->{$_};
        }
2203 2204 2205 2206
#        if ($extra_checks &&
#            $previous && !($add_called ||  $previous ~~ $table{$target}->{$_})) {
#            warn "$_ got replaced in $target\n";
#        }
2207 2208 2209 2210 2211 2212
    }

    # Finally done, return the result.
    return %{$table{$target}};
}

2213
sub usage
2214
	{
2215
	print STDERR $usage;
2216
	print STDERR "\npick os/compiler from:\n";
2217
	my $j=0;
2218
	my $i;
2219
        my $k=0;
2220
	foreach $i (sort keys %table)
2221
		{
2222
		next if $table{$i}->{template};
2223
		next if $i =~ /^debug/;
2224 2225 2226 2227 2228 2229 2230
		$k += length($i) + 1;
		if ($k > 78)
			{
			print STDERR "\n";
			$k=length($i);
			}
		print STDERR $i . " ";
2231 2232 2233
		}
	foreach $i (sort keys %table)
		{
2234
		next if $table{$i}->{template};
2235
		next if $i !~ /^debug/;
2236 2237 2238 2239 2240 2241 2242
		$k += length($i) + 1;
		if ($k > 78)
			{
			print STDERR "\n";
			$k=length($i);
			}
		print STDERR $i . " ";
2243
		}
2244
	print STDERR "\n\nNOTE: If in doubt, on Unix-ish systems use './config'.\n";
2245
	exit(1);
2246 2247
	}

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sub run_dofile
2249 2250
{
    my $out = shift;
2251
    my @templates = @_;
2252

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    unlink $out || warn "Can't remove $out, $!"
        if -f $out;
2255 2256 2257 2258 2259 2260
    foreach (@templates) {
        die "Can't open $_, $!" unless -f $_;
    }
    my $cmd = "$config{perl} \"-I.\" \"-Mconfigdata\" $dofile -o\"Configure\" \"".join("\" \"",@templates)."\" > \"$out.new\"";
    #print STDERR "DEBUG[run_dofile]: \$cmd = $cmd\n";
    system($cmd);
2261 2262 2263 2264
    exit 1 if $? != 0;
    rename("$out.new", $out) || die "Can't rename $out.new, $!";
}

2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276
# Configuration printer ##############################################

sub print_table_entry
{
    my $target = shift;
    my %target = resolve_config($target);
    my $type = shift;

    # Don't print the templates
    return if $target{template};

    my @sequence = (
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	"sys_id",
2278 2279
	"cc",
	"cflags",
2280
	"defines",
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	"unistd",
	"ld",
2283
	"lflags",
2284
	"plib_lflags",
2285
	"ex_libs",
2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301
	"bn_ops",
	"cpuid_obj",
	"bn_obj",
	"ec_obj",
	"des_obj",
	"aes_obj",
	"bf_obj",
	"md5_obj",
	"sha1_obj",
	"cast_obj",
	"rc4_obj",
	"rmd160_obj",
	"rc5_obj",
	"wp_obj",
	"cmll_obj",
	"modes_obj",
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	"padlock_obj",
2303
	"thread_scheme",
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	"perlasm_scheme",
	"dso_scheme",
	"shared_target",
	"shared_cflag",
	"shared_ldflag",
2309
	"shared_rcflag",
2310
	"shared_extension",
2311 2312 2313
	"shared_extension_simple",
	"shared_import_extension",
	"dso_extension",
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	"obj_extension",
	"exe_extension",
2316
	"ranlib",
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	"ar",
2318 2319
	"arflags",
	"multilib",
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	"build_scheme",
2321 2322 2323 2324 2325
	);

    if ($type eq "TABLE") {
	print "\n";
	print "*** $target\n";
2326 2327 2328 2329 2330 2331 2332
        foreach (@sequence) {
            if (ref($target{$_}) eq "ARRAY") {
                printf "\$%-12s = %s\n", $_, join(" ", @{$target{$_}});
            } else {
                printf "\$%-12s = %s\n", $_, $target{$_};
            }
        }
2333 2334 2335 2336 2337 2338
    } elsif ($type eq "HASH") {
	my $largest =
	    length((sort { length($a) <=> length($b) } @sequence)[-1]);
	print "    '$target' => {\n";
	foreach (@sequence) {
	    if ($target{$_}) {
2339 2340 2341 2342 2343
                if (ref($target{$_}) eq "ARRAY") {
                    print "      '",$_,"'"," " x ($largest - length($_))," => [ ",join(", ", map { "'$_'" } @{$target{$_}})," ],\n";
                } else {
                    print "      '",$_,"'"," " x ($largest - length($_))," => '",$target{$_},"',\n";
                }
2344 2345 2346 2347 2348 2349 2350 2351
	    }
	}
	print "    },\n";
    }
}

# Utility routines ###################################################

2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368
# On VMS, if the given file is a logical name, File::Spec::Functions
# will consider it an absolute path.  There are cases when we want a
# purely syntactic check without checking the environment.
sub isabsolute {
    my $file = shift;

    # On non-platforms, we just use file_name_is_absolute().
    return file_name_is_absolute($file) unless $^O eq "VMS";

    # If the file spec includes a device or a directpry spec,
    # file_name_is_absolute() is perfectly safe.
    return file_name_is_absolute($file) if $file =~ m|[:\[]|;

    # Here, we know the given file spec isn't absolute
    return 0;
}

2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391
# Makes a directory absolute and cleans out /../ in paths like foo/../bar
# On some platforms, this uses rel2abs(), while on others, realpath() is used.
# realpath() requires that at least all path components except the last is an
# existing directory.  On VMS, the last component of the directory spec must
# exist.
sub absolutedir {
    my $dir = shift;

    # realpath() is quite buggy on VMS.  It uses LIB$FID_TO_NAME, which
    # will return the volume name for the device, no matter what.  Also,
    # it will return an incorrect directory spec if the argument is a
    # directory that doesn't exist.
    if ($^O eq "VMS") {
        return rel2abs($dir);
    }

    # We use realpath() on Unix, since no other will properly clean out
    # a directory spec.
    use Cwd qw/realpath/;

    return realpath($dir);
}

2392 2393 2394 2395 2396 2397
sub which
	{
	my($name)=@_;
	my $path;
	foreach $path (split /:/, $ENV{PATH})
		{
2398 2399
		my $fullpath = "$path/$name$target{exe_extension}";
		if (-f $fullpath and -x $fullpath)
2400
			{
2401 2402 2403
			return $fullpath
			    unless ($name eq "perl" and
				    system("$fullpath -e " . '\'exit($]<5.0);\''));
2404 2405 2406 2407
			}
		}
	}

2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419
sub quotify {
    my %processors = (
	perl    => sub { my $x = shift;
			 $x =~ s/([\\\$\@"])/\\$1/g;
			 return '"'.$x.'"'; },
	);
    my $for = shift;
    my $processor =
	defined($processors{$for}) ? $processors{$for} : sub { shift; };

    map { $processor->($_); } @_;
}
2420

2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434
# collect_from_file($filename, $line_concat_cond_re, $line_concat)
# $filename is a file name to read from
# $line_concat_cond_re is a regexp detecting a line continuation ending
# $line_concat is a CODEref that takes care of concatenating two lines
sub collect_from_file {
    my $filename = shift;
    my $line_concat_cond_re = shift;
    my $line_concat = shift;

    open my $fh, $filename || die "unable to read $filename: $!\n";
    return sub {
        my $saved_line = "";
        $_ = "";
        while (<$fh>) {
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            s|\R$||;
2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465
            if (defined $line_concat) {
                $_ = $line_concat->($saved_line, $_);
                $saved_line = "";
            }
            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
                $saved_line = $_;
                next;
            }
            return $_;
        }
        die "$filename ending with continuation line\n" if $_;
        close $fh;
        return undef;
    }
}

# collect_from_array($array, $line_concat_cond_re, $line_concat)
# $array is an ARRAYref of lines
# $line_concat_cond_re is a regexp detecting a line continuation ending
# $line_concat is a CODEref that takes care of concatenating two lines
sub collect_from_array {
    my $array = shift;
    my $line_concat_cond_re = shift;
    my $line_concat = shift;
    my @array = (@$array);

    return sub {
        my $saved_line = "";
        $_ = "";
        while (defined($_ = shift @array)) {
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            s|\R$||;
2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483
            if (defined $line_concat) {
                $_ = $line_concat->($saved_line, $_);
                $saved_line = "";
            }
            if (defined $line_concat_cond_re && /$line_concat_cond_re/) {
                $saved_line = $_;
                next;
            }
            return $_;
        }
        die "input text ending with continuation line\n" if $_;
        return undef;
    }
}

# collect_information($lineiterator, $line_continue, $regexp => $CODEref, ...)
# $lineiterator is a CODEref that delivers one line at a time.
2484 2485 2486
# All following arguments are regex/CODEref pairs, where the regexp detects a
# line and the CODEref does something with the result of the regexp.
sub collect_information {
2487
    my $lineiterator = shift;
2488 2489
    my %collectors = @_;

2490
    while(defined($_ = $lineiterator->())) {
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2491
        s|\R$||;
2492
        my $found = 0;
2493 2494 2495
        if ($collectors{"BEFORE"}) {
            $collectors{"BEFORE"}->($_);
        }
2496
        foreach my $re (keys %collectors) {
2497
            if ($re !~ /^OTHERWISE|BEFORE|AFTER$/ && /$re/) {
2498 2499 2500 2501 2502 2503 2504 2505
                $collectors{$re}->($lineiterator);
                $found = 1;
            };
        }
        if ($collectors{"OTHERWISE"}) {
            $collectors{"OTHERWISE"}->($lineiterator, $_)
                unless $found || !defined $collectors{"OTHERWISE"};
        }
2506 2507 2508
        if ($collectors{"AFTER"}) {
            $collectors{"AFTER"}->($_);
        }
2509 2510
    }
}