1#! /usr/bin/env perl 2# -*- mode: perl; -*- 3# Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. 4# 5# Licensed under the Apache License 2.0 (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 %{$shared_info{'gnu-shared'}}, 34 shared_defflag => '-Wl,--version-script=', 35 dso_ldflags => 36 (grep /(?:^|\s)-fsanitize/, 37 @{$config{CFLAGS}}, @{$config{cflags}}) 38 ? '' 39 : '-Wl,-z,defs', 40 }; 41 }, 42 'bsd-gcc-shared' => sub { return $shared_info{'linux-shared'}; }, 43 'darwin-shared' => { 44 module_ldflags => '-bundle', 45 shared_ldflag => '-dynamiclib -current_version $(SHLIB_VERSION_NUMBER) -compatibility_version $(SHLIB_VERSION_NUMBER)', 46 shared_sonameflag => '-install_name $(libdir)/', 47 }, 48 'cygwin-shared' => { 49 shared_ldflag => '-shared -Wl,--enable-auto-image-base', 50 shared_impflag => '-Wl,--out-implib=', 51 }, 52 'mingw-shared' => sub { 53 return { 54 %{$shared_info{'cygwin-shared'}}, 55 # def_flag made to empty string so it still generates 56 # something 57 shared_defflag => '', 58 shared_argfileflag => '@', 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 'solaris-gcc-shared' => sub { 83 return $shared_info{'linux-shared'} if detect_gnu_ld(); 84 return { 85 # Note: we should also have -shared here, but because some 86 # config targets define it with an added -static-libgcc 87 # following it, we don't want to change the order. This 88 # forces all solaris gcc config targets to define shared_ldflag 89 shared_ldflag => '-Wl,-Bsymbolic', 90 shared_defflag => "-Wl,-M,", 91 shared_sonameflag => "-Wl,-h,", 92 }; 93 }, 94); 95