424359149388bc4b9c7096c5c94c7d9d1fe36ca2
[openssl.git] / Configurations / shared-info.pl
1 #! /usr/bin/env perl
2 # -*- mode: perl; -*-
3 # Copyright 2016-2020 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             %{$shared_info{'gnu-shared'}},
34             shared_defflag    => '-Wl,--version-script=',
35             dso_ldflags       =>
36                 (grep /(?:^|\s)-fsanitize/,
37                  @{$config{CFLAGS}}, @{$config{cflags}})
38                 ? ''
39                 : '-Wl,-z,defs',
40         };
41     },
42     'bsd-gcc-shared' => sub { return $shared_info{'linux-shared'}; },
43     'bsd-shared' => sub {
44         return $shared_info{'gnu-shared'} if detect_gnu_ld();
45         return {
46             shared_ldflag     => '-shared -nostdlib',
47         };
48     },
49     'darwin-shared' => {
50         module_ldflags        => '-bundle',
51         shared_ldflag         => '-dynamiclib -current_version $(SHLIB_VERSION_NUMBER) -compatibility_version $(SHLIB_VERSION_NUMBER)',
52         shared_sonameflag     => '-install_name $(INSTALLTOP)/$(LIBDIR)/',
53     },
54     'cygwin-shared' => {
55         shared_ldflag         => '-shared -Wl,--enable-auto-image-base',
56         shared_impflag        => '-Wl,--out-implib=',
57     },
58     'mingw-shared' => sub {
59         return {
60             %{$shared_info{'cygwin-shared'}},
61             # def_flag made to empty string so it still generates
62             # something
63             shared_defflag    => '',
64         };
65     },
66     'alpha-osf1-shared' => sub {
67         return $shared_info{'gnu-shared'} if detect_gnu_ld();
68         return {
69             module_ldflags    => '-shared -Wl,-Bsymbolic',
70             shared_ldflag     => '-shared -Wl,-Bsymbolic -set_version $(SHLIB_VERSION_NUMBER)',
71         };
72     },
73     'svr3-shared' => sub {
74         return $shared_info{'gnu-shared'} if detect_gnu_ld();
75         return {
76             shared_ldflag     => '-G',
77             shared_sonameflag => '-h ',
78         };
79     },
80     'svr5-shared' => sub {
81         return $shared_info{'gnu-shared'} if detect_gnu_ld();
82         return {
83             shared_ldflag     => detect_gnu_cc() ? '-shared' : '-G',
84             shared_sonameflag => '-h ',
85         };
86     },
87     'solaris-gcc-shared' => sub {
88         return $shared_info{'linux-shared'} if detect_gnu_ld();
89         return {
90             # Note: we should also have -shared here, but because some
91             # config targets define it with an added -static-libgcc
92             # following it, we don't want to change the order.  This
93             # forces all solaris gcc config targets to define shared_ldflag
94             shared_ldflag     => '-Wl,-Bsymbolic',
95             shared_defflag    => "-Wl,-M,",
96             shared_sonameflag => "-Wl,-h,",
97         };
98     },
99 );