Configurations/shared-info.pl

   1 #! /usr/bin/env perl
   2 # -*- mode: perl; -*-
   3 # Copyright 2016-2018 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
  14 sub 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 }
  19 sub detect_gnu_cc {
  20     my @lines =
  21         `$config{CROSS_COMPILE}$config{CC} -v 2>&1`;
  22     return grep /gcc/, @lines;
  23 }
  24
  25 my %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             %{$shared_info{'gnu-shared'}},
  34             shared_defflag    => '-Wl,--version-script=',
  35             dso_ldflags       =>
  36                 (grep /(?:^|\s)-fsanitize/, @{$config{CFLAGS}})
  37                 ? ''
  38                 : '-z defs',
  39         };
  40     },
  41     'bsd-gcc-shared' => sub { return $shared_info{'linux-shared'}; },
  42     'bsd-shared' => sub {
  43         return $shared_info{'gnu-shared'} if detect_gnu_ld();
  44         return {
  45             shared_ldflag     => '-shared -nostdlib',
  46         };
  47     },
  48     'darwin-shared' => {
  49         module_ldflags        => '-bundle',
  50         shared_ldflag         => '-dynamiclib -current_version $(SHLIB_VERSION_NUMBER) -compatibility_version $(SHLIB_VERSION_NUMBER)',
  51         shared_sonameflag     => '-install_name $(INSTALLTOP)/$(LIBDIR)/',
  52     },
  53     'cygwin-shared' => {
  54         shared_ldflag         => '-shared -Wl,--enable-auto-image-base',
  55         shared_impflag        => '-Wl,--out-implib=',
  56     },
  57     'mingw-shared' => sub {
  58         return {
  59             %{$shared_info{'cygwin-shared'}},
  60             # def_flag made to empty string so it still generates
  61             # something
  62             shared_defflag    => '',
  63         };
  64     },
  65     'alpha-osf1-shared' => sub {
  66         return $shared_info{'gnu-shared'} if detect_gnu_ld();
  67         return {
  68             module_ldflags    => '-shared -Wl,-Bsymbolic',
  69             shared_ldflag     => '-shared -Wl,-Bsymbolic -set_version $(SHLIB_VERSION_NUMBER)',
  70         };
  71     },
  72     'svr3-shared' => sub {
  73         return $shared_info{'gnu-shared'} if detect_gnu_ld();
  74         return {
  75             shared_ldflag     => '-G',
  76             shared_sonameflag => '-h ',
  77         };
  78     },
  79     'svr5-shared' => sub {
  80         return $shared_info{'gnu-shared'} if detect_gnu_ld();
  81         return {
  82             shared_ldflag     => detect_gnu_cc() ? '-shared' : '-G',
  83             shared_sonameflag => '-h ',
  84         };
  85     },
  86 );