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1# ex:ts=8 sw=4:
2# $OpenBSD: Compile.pm,v 1.14 2023/07/08 08:15:32 espie Exp $
3#
4# Copyright (c) 2007-2010 Steven Mestdagh <steven@openbsd.org>
5# Copyright (c) 2012 Marc Espie <espie@openbsd.org>
6#
7# Permission to use, copy, modify, and distribute this software for any
8# purpose with or without fee is hereby granted, provided that the above
9# copyright notice and this permission notice appear in all copies.
10#
11# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18use v5.36;
19
20package LT::Mode::Compile;
21our @ISA = qw(LT::Mode);
22
23use File::Basename;
24use LT::LoFile;
25use LT::Util;
26use LT::Trace;
27
28sub help($)
29{
30 print <<"EOH";
31
32Usage: $0 --mode=compile COMPILE-COMMAND [opts] SOURCE
33Compile source file into library object
34
35 -o OUTPUT-FILE
36EOH
37}
38
39my @valid_src = qw(asm c cc cpp cxx f s);
40sub run($class, $ltprog, $gp, $ltconfig)
41{
42 my $lofile = LT::LoFile->new;
43
44 my $pic = !$ltconfig->noshared;
45 my $nonpic = 1;
46 if ($gp->has_tag('disable-shared')) {
47 $pic = 0;
48 }
49 if ($gp->has_tag('disable-static') && $pic) {
50 $nonpic = 0;
51 }
52
53 my $pic_mode = 0;
54
55 my @pie_flags = ();
56
57 $gp->handle_permuted_options('o:!@',
58 qr{\-Wc\,(.*)},
59 sub {
60 $gp->keep_for_later(split(/\,/, shift));
61 },
62 'Xcompiler:',
63 sub {
64 $gp->keep_for_later($_[2]);
65 },
66 'pie|fpie|fPIE',
67 sub {
68 push(@pie_flags, $_[3]);
69 },
70 'no-suppress', # we just ignore that one
71 'prefer-pic', sub { $pic_mode = 1; },
72 'prefer-non-pic', sub { $pic_mode = 0; },
73 'static',
74 sub {
75 $pic = 0;
76 $nonpic = 1;
77 },
78 'shared',
79 sub {
80 if (!$pic) {
81 shortdie "bad configuration: can't build shared library";
82 }
83 $nonpic = 0;
84 });
85
86 my ($outfile, $odir, $ofile, $srcfile, $srcext);
87 # XXX check whether -c flag is present and if not, die?
88 if ($gp->o) {
89 if ($gp->o > 1) {
90 shortdie "Can't specify -o more than once\n";
91 }
92 # fix extension if needed
93 ($outfile = ($gp->o)[0]) =~ s/\.o$/.lo/;
94 $odir = dirname($outfile);
95 $ofile = basename($outfile);
96 } else {
97 # XXX sometimes no -o flag is present and we need another way
98 my $srcre = join '|', @valid_src;
99 my $found = 0;
100 foreach my $a (@main::ARGV) {
101 if ($a =~ m/\.($srcre)$/i) {
102 $srcfile = $a;
103 $srcext = $1;
104 $found = 1;
105 last;
106 }
107 }
108 $found or die "Cannot find source file in command\n";
109 # the output file ends up in the current directory
110 $odir = '.';
111 ($ofile = basename($srcfile)) =~ s/\.($srcext)$/.lo/i;
112 $outfile = "$odir/$ofile";
113 }
114 tsay {"srcfile = $srcfile"} if $srcfile;
115 tsay {"outfile = $outfile"};
116 (my $nonpicobj = $ofile) =~ s/\.lo$/.o/;
117 my $picobj = "$ltdir/$nonpicobj";
118
119 $lofile->{picobj} = $picobj if $pic;
120 $lofile->{nonpicobj} = $nonpicobj if $nonpic;
121 $lofile->{picflags} = $ltconfig->picflags;
122 if ($pic_mode) {
123 $lofile->{nonpicflags} = $ltconfig->picflags;
124 } else {
125 $lofile->{nonpicflags} = \@pie_flags;
126 }
127 $lofile->compile($ltprog, $odir, \@ARGV);
128 $lofile->write($outfile);
129}
130
1311;