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ef2dfc9902
The generation of linker scripts was badly balanced, as all sorts of platform dependent stuff went into the top build.info, when that part should really be made as simply and generic as possible. Therefore, we move a lot of the "magic" to the build files templates, since they are the place for platform dependent things. What remains is to parametrize just enough in the build.info file to generate the linker scripts correctly for each associated library. "linker script" is a term usually reserved for certain Unix linkers. However, we only use them to say what symbols should be exported, so we use the term loosely for all platforms. The internal extension is '.ld', and is changed by the build file templates as appropriate for each target platform. Note that this adds extra meaning to the value of the shared_target attribute. Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7333)
83 lines
2.7 KiB
Perl
83 lines
2.7 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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'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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);
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