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abe256e795
With the support of "make variables" comes the possibility for the user to override them. However, we need to make a difference between defaults that we use (and that should be overridable by the user) and flags that are crucial for building OpenSSL (should not be overridable). Typically, overridable flags are those setting optimization levels, warnings levels, that kind of thing, while non-overridable flags are, for example, macros that indicate aspects of how the config target should be treated, such as L_ENDIAN and B_ENDIAN. We do that differentiation by allowing upper case attributes in the config targets, named exactly like the "make variables" we support, and reserving the lower case attributes for non-overridable project flags. Reviewed-by: Andy Polyakov <appro@openssl.org> (Merged from https://github.com/openssl/openssl/pull/5534)
103 lines
3.4 KiB
Perl
103 lines
3.4 KiB
Perl
#! /usr/bin/env perl
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# -*- mode: perl; -*-
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# Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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# This is a collection of extra attributes to be used as input for creating
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# shared libraries, currently on any Unix variant, including Unix like
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# environments on Windows.
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sub detect_gnu_ld {
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my @lines =
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`$config{CROSS_COMPILE}$config{CC} -Wl,-V /dev/null 2>&1`;
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return grep /^GNU ld/, @lines;
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}
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sub detect_gnu_cc {
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my @lines =
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`$config{CROSS_COMPILE}$config{CC} -v 2>&1`;
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return grep /gcc/, @lines;
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}
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my %shared_info;
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%shared_info = (
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'gnu-shared' => {
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shared_ldflag => '-shared -Wl,-Bsymbolic',
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shared_sonameflag => '-Wl,-soname=',
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},
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'linux-shared' => sub {
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return {
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%{$shared_info{'gnu-shared'}},
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shared_defflag => '-Wl,--version-script=',
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};
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},
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'bsd-gcc-shared' => sub { return $shared_info{'linux-shared'}; },
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'bsd-shared' => sub {
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return $shared_info{'gnu-shared'} if detect_gnu_ld();
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return {
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shared_ldflag => '-shared -nostdlib',
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};
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},
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'darwin-shared' => {
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module_ldflags => '-bundle',
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shared_ldflag => '-dynamiclib -current_version $(SHLIB_VERSION_NUMBER) -compatibility_version $(SHLIB_VERSION_NUMBER)',
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shared_sonameflag => '-install_name $(INSTALLTOP)/$(LIBDIR)/',
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},
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'cygwin-shared' => {
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shared_ldflag => '-shared -Wl,--enable-auto-image-base',
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shared_impflag => '-Wl,--out-implib=',
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},
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'mingw-shared' => sub {
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return {
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%{$shared_info{'cygwin-shared'}},
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# def_flag made to empty string so it still generates
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# something
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shared_defflag => '',
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};
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},
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'alpha-osf1-shared' => sub {
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return $shared_info{'gnu-shared'} if detect_gnu_ld();
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return {
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module_ldflags => '-shared -Wl,-Bsymbolic',
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shared_ldflag => '-shared -Wl,-Bsymbolic -set_version $(SHLIB_VERSION_NUMBER)',
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};
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},
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'solaris-shared' => {
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shared_ldflag => '-Wl,-Bsymbolic',
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shared_defflag => '-Wl,-M,',
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},
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'svr3-shared' => sub {
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return $shared_info{'gnu-shared'} if detect_gnu_ld();
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return {
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shared_ldflag => '-G',
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shared_sonameflag => '-h ',
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};
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},
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'svr5-shared' => sub {
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return $shared_info{'gnu-shared'} if detect_gnu_ld();
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return {
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shared_ldflag => detect_gnu_cc() ? '-shared' : '-G',
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shared_sonameflag => '-h ',
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};
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},
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'irix-shared' => sub {
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return $shared_info{'gnu-shared'} if detect_gnu_ld();
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return {
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shared_ldflag => '-shared -Wl,-Bsymbolic',
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shared_sonameflag => '-Wl,-soname=',
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};
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},
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'hpux-shared' => {
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bin_lflags => '-Wl,+s,+cdp,../:,+cdp,./:',
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shared_ldflag => '-Wl,-B,symbolic,+vnocompatwarnings,-z,+s,+cdp,../:,+cdp,./:',
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shared_sonameflag => '-Wl,+h,',
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},
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'aix-shared' => {
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bin_lflags => '-Wl,-bsvr4',
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shared_ldflag => '-Wl,-bexpall,-bnolibpath,-bM:SRE',
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},
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);
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