File: [local] / src / usr.bin / libtool / libtool (download)
Revision 1.19, Sat Jul 7 21:29:14 2012 UTC (11 years, 11 months ago) by espie
Branch: MAIN
Changes since 1.18: +82 -49 lines
make $mode into an actual object.
cheat a bit by auto-loading corresponding code if needed.
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#!/usr/bin/perl
# $OpenBSD: libtool,v 1.19 2012/07/07 21:29:14 espie Exp $
# Copyright (c) 2007-2010 Steven Mestdagh <steven@openbsd.org>
# Copyright (c) 2012 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
use strict;
use warnings;
use feature qw(say switch state);
use Cwd qw(getcwd abs_path);
use File::Basename;
use File::Glob ':glob';
use File::Path;
use LT::Trace;
use LT::Exec;
use LT::Util;
$SIG{__DIE__} = sub {
require Carp;
my $_ = pop @_;
s/(.*)( at .*? line .*?\n$)/$1/s;
push @_, $_;
die &Carp::longmess;
};
package LT::OSConfig;
use Config;
use LT::Util;
sub new
{
my $class = shift;
# XXX: incomplete
my $self = {
machine_arch => $Config{ARCH},
ltdir => $ltdir,
};
($self->{gnu_arch} = $self->{machine_arch}) =~ s/amd64/x86_64/;
bless $self, $class;
}
package LT::Mode;
sub new
{
my ($class, $origin) = @_;
# XXX autoload *if needed*.
eval "require $class; ";
bless {origin => $origin }, $class;
}
my $mode_maker = { compile => 'LT::Mode::Compile',
clean => 'LT::Mode::Clean',
execute => 'LT::Mode::Execute',
finish => 'LT::Mode::Finish',
install => 'LT::Mode::Install',
link => 'LT::Mode::Link',
uninstall => 'LT::Mode::Uninstall' };
sub factory
{
my ($class, $mode, $origin) = @_;
if (defined $mode_maker->{$mode}) {
return $mode_maker->{$mode}->new($origin);
} else {
# XXX invokved from getopt, can't die yet.
say STDERR "Mode=$mode not implemented yet.\n";
exit 1;
}
}
package LT::Mode::Empty;
our @ISA = qw(LT::Mode);
sub run
{
exit 0;
}
package LT::Mode::Compile;
our @ISA = qw(LT::Mode);
package LT::Mode::Clean;
our @ISA = qw(LT::Mode::Empty);
package LT::Mode::Execute;
our @ISA = qw(LT::Mode);
sub run
{
my ($class, $ltprog, $gp, $noshared) = @_;
# XXX check whether this is right
LT::Exec->silent_run;
LT::Exec->execute(@$ltprog, @main::ARGV);
}
package LT::Mode::Finish;
our @ISA = qw(LT::Mode::Empty);
package LT::Mode::Install;
our @ISA = qw(LT::Mode);
package LT::Mode::Link;
our @ISA = qw(LT::Mode);
package LT::Mode::Uninstall;
our @ISA = qw(LT::Mode::Empty);
package LT::Options;
use Getopt::Long;
my @valid_modes = qw(compile clean execute finish install link uninstall);
my @known_tags = qw(disable-shared disable-static CC CXX F77 FC GO GCJ RC);
sub new
{
my $class = shift;
my $o = bless { gp => Getopt::Long::Parser->new }, $class;
# require_order so we stop parsing at the first non-option or argument,
# instead of parsing the whole ARGV.
$o->{gp}->configure('no_ignore_case',
'pass_through',
'no_auto_abbrev',
'require_order');
return $o;
}
sub add_tag
{
my ($self, $value) = @_;
if ($value =~ m/[^\-\w,\/]/) {
# XXX stupid Getopt pre-empts die !
say STDERR "invalid tag name: $value";
exit 1;
}
if (grep {$value eq $_} @known_tags) {
$self->{tags}{$value} = 1;
} else {
say STDERR "ignoring unknown tag: $value";
}
}
sub has_tag
{
my ($self, $tag) = @_;
return defined $self->{tags}{$tag};
}
sub configure
{
my $o = shift;
$o->{gp}->configure(@_);
}
sub getoptions
{
my $o = shift;
$o->{gp}->getoptions(@_);
}
sub is_abreviated_mode
{
my ($self, $arg) = @_;
return undef if !$arg;
for my $m (@valid_modes) {
next if length $arg > length $m;
if ($arg eq substr($m, 0, length $arg)) {
return LT::Mode->factory($m, $arg);
}
}
return undef;
}
# XXX this should always fail if we are libtool2 !
# try to guess libtool mode when it is not specified
sub guess_implicit_mode
{
my ($self, $ltprog) = @_;
my $m;
for my $a (@$ltprog) {
if ($a =~ m/(install([.-]sh)?|cp)$/) {
$m = LT::Mode::Install->new("implicit $a");
} elsif ($a =~ m/cc|c\+\+/) { # XXX improve test
if (grep { $_ eq '-c' } @ARGV) {
$m = LT::Mode::Compile->new("implicit");
} else {
$m = LT::Mode::Link->new("implicit");
}
}
}
return $m;
}
sub valid_modes
{
my $self = shift;
return join(' ', @valid_modes);
}
package main;
use subs qw(
create_symlinks
help
notyet
);
my $ltconfig = LT::OSConfig->new;
my @no_shared_archs = qw(m88k vax);
my $cwd = getcwd();
my $instlibdir = $ENV{LIBDIR} // '/usr/local/lib';
my $mode;
my $verbose = 1;
# just to be clear:
# when building a library:
# * -R libdir records libdir in dependency_libs
# * -rpath is the path where the (shared) library will be installed
# when building a program:
# * both -R libdir and -rpath libdir add libdir to the run-time path
# -Wl,-rpath,libdir will bypass libtool.
# build static/shared objects?
my $noshared = 0;
if (grep { $_ eq $ltconfig->{machine_arch} } @no_shared_archs) {
$noshared = 1;
}
if ($mode = LT::Options->is_abreviated_mode($ARGV[0])) {
shift @ARGV;
}
my $gp = LT::Options->new;
$gp->getoptions('config' => \&config,
'debug' => sub {
LT::Trace->set($_[1]);
LT::Exec->verbose_run;
},
'dry-run|n' => sub { LT::Exec->dry_run; },
'features' => sub {
my $v = `uname -r`;
chomp $v;
say "host: $ltconfig->{gnu_arch}-unknown-openbsd$v";
say "enable shared libraries" unless $noshared;
say "enable static libraries";
exit 0;
},
'finish' => sub { $mode = LT::Mode::Finish->new('--finish'); },
'help' => \&help, # does not return
'mode=s{1}' => sub {
$mode = LT::Mode->factory($_[1], "--mode=$_[1]");
},
'quiet' => sub { $verbose = 0; },
'silent' => sub { $verbose = 0; },
'tag=s{1}' => sub { $gp->add_tag($_[1]); },
'version' => sub {
say "libtool (not (GNU libtool)) $version" ;
exit 0;
},
);
if ($verbose) {
LT::Exec->verbose_run;
}
# what are we going to run (cc, c++, ...)
my $ltprog = [];
# deal with multi-arg ltprog
tsay {"ARGV = \"@ARGV\""};
while (@ARGV) {
# just read arguments until the next option...
if ($ARGV[0] =~ m/^\-/) { last; }
# XXX improve checks
if ($ARGV[0] =~ m/^\S+\.la/) { last; }
my $arg = shift @ARGV;
push @$ltprog, $arg;
tsay {"arg = \"$arg\""};
# if the current argument is an install program, stop immediately
if ($arg =~ /cp$/) { last; }
if ($arg =~ /install([-.]sh)?$/) { last; }
}
tsay {"ltprog = \"@$ltprog\""};
# XXX compat game to satisfy both libtool 1 and libtool 2
# let libtool install work as both libtool 1 and libtool 2
if (@$ltprog == 0 && defined $mode && $mode->{origin} eq 'install') {
$ltprog = [ 'install' ];
}
if (@$ltprog == 0) { die "No libtool command given.\n" .
"Use `libtool --help' for more information.\n" };
# make ltprog a list of elements without whitespace (prevent exec errors)
my @tmp_ltprog = @$ltprog;
@$ltprog = ();
for my $el (@tmp_ltprog) {
my @parts = split /\s+/, $el;
push @$ltprog, @parts;
}
if (!defined $mode) {
$mode = $gp->guess_implicit_mode($ltprog);
tsay {"implicit mode: ", $mode->{origin}} if $mode;
}
# from here, options may be intermixed with arguments
$gp->configure('permute');
$mode->run($ltprog, $gp, $noshared);
if (LT::Exec->performed == 0) {
die "No commands to execute.\n"
}
###########################################################################
sub help
{
print <<EOF
Usage: $0 [options]
--config - print configuration
--debug - turn on debugging output
--dry-run - don't do anything, only show what would be done
--help - this message
--mode=MODE - use operation mode MODE
--quiet - do not print informational messages
--silent - same as `--quiet'
--tag=TAG - specify a configuration variable TAG
--version - print version of libtool
EOF
;
exit 1;
}
sub notyet
{
die "Option not implemented yet.\n";
}
sub config
{
while ( my ($key, $value) = each(%$ltconfig) ) {
print "$key = $value\n";
}
exit 0;
}
sub create_symlinks
{
my ($dir, $libs) = @_;
if (! -d $dir) {
mkdir($dir) or die "Cannot mkdir($dir) : $!\n";
}
foreach my $l (values %$libs) {
my $f = $l->{fullpath};
next if !defined $f;
next if $f =~ m/\.a$/;
my $libnames = [];
if (defined $l->{lafile}) {
require LT::LaFile;
my $lainfo = LT::LaFile->parse($l->{lafile});
my $librarynames = $lainfo->stringize('library_names');
@$libnames = split /\s/, $librarynames;
$libnames = reverse_zap_duplicates_ref($libnames);
} else {
push @$libnames, basename($f);
}
foreach my $libfile (@$libnames) {
my $link = "$dir/$libfile";
tsay {"ln -s $f $link"};
next if -f $link;
my $p = abs_path($f);
if (!symlink($p, $link)) {
die "Cannot create symlink($p, $link): $!\n"
unless $!{EEXIST};
}
}
}
return $dir;
}