1#! /usr/bin/env perl 2# -*- mode: perl; -*- 3# Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved. 4# 5# Licensed under the OpenSSL license (the "License"). You may not use 6# this file except in compliance with the License. You can obtain a copy 7# in the file LICENSE in the source distribution or at 8# https://www.openssl.org/source/license.html 9 10# This is a collection of extra attributes to be used as input for creating 11# shared libraries, currently on any Unix variant, including Unix like 12# environments on Windows. 13 14sub detect_gnu_ld { 15 my @lines = 16 `$config{CROSS_COMPILE}$config{CC} -Wl,-V /dev/null 2>&1`; 17 return grep /^GNU ld/, @lines; 18} 19sub detect_gnu_cc { 20 my @lines = 21 `$config{CROSS_COMPILE}$config{CC} -v 2>&1`; 22 return grep /gcc/, @lines; 23} 24 25my %shared_info; 26%shared_info = ( 27 'gnu-shared' => { 28 shared_ldflag => '-shared -Wl,-Bsymbolic', 29 shared_sonameflag => '-Wl,-soname=', 30 }, 31 'linux-shared' => sub { 32 return { 33 %{$shared_info{'gnu-shared'}}, 34 shared_defflag => '-Wl,--version-script=', 35 }; 36 }, 37 'bsd-gcc-shared' => sub { return $shared_info{'linux-shared'}; }, 38 'bsd-shared' => sub { 39 return $shared_info{'gnu-shared'} if detect_gnu_ld(); 40 return { 41 shared_ldflag => '-shared -nostdlib', 42 }; 43 }, 44 'darwin-shared' => { 45 module_ldflags => '-bundle', 46 shared_ldflag => '-dynamiclib -current_version $(SHLIB_VERSION_NUMBER) -compatibility_version $(SHLIB_VERSION_NUMBER)', 47 shared_sonameflag => '-install_name $(INSTALLTOP)/$(LIBDIR)/', 48 }, 49 'cygwin-shared' => { 50 shared_ldflag => '-shared -Wl,--enable-auto-image-base', 51 shared_impflag => '-Wl,--out-implib=', 52 }, 53 'mingw-shared' => sub { 54 return { 55 %{$shared_info{'cygwin-shared'}}, 56 # def_flag made to empty string so it still generates 57 # something 58 shared_defflag => '', 59 }; 60 }, 61 'alpha-osf1-shared' => sub { 62 return $shared_info{'gnu-shared'} if detect_gnu_ld(); 63 return { 64 module_ldflags => '-shared -Wl,-Bsymbolic', 65 shared_ldflag => '-shared -Wl,-Bsymbolic -set_version $(SHLIB_VERSION_NUMBER)', 66 }; 67 }, 68 'svr3-shared' => sub { 69 return $shared_info{'gnu-shared'} if detect_gnu_ld(); 70 return { 71 shared_ldflag => '-G', 72 shared_sonameflag => '-h ', 73 }; 74 }, 75 'svr5-shared' => sub { 76 return $shared_info{'gnu-shared'} if detect_gnu_ld(); 77 return { 78 shared_ldflag => detect_gnu_cc() ? '-shared' : '-G', 79 shared_sonameflag => '-h ', 80 }; 81 }, 82); 83