6e623e9320
Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause. Everything else stays under GPLv3+. New Linking Exception exempts resulting executables from LGPLv3 section 4. Add CONTRIBUTORS file to keep track of licensing. Remove 'Copyright Red Hat Inc' comments. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
104 lines
3.2 KiB
Perl
Executable File
104 lines
3.2 KiB
Perl
Executable File
#!/usr/bin/perl -s
|
|
#
|
|
# This file is part of Cygwin.
|
|
#
|
|
# This software is a copyrighted work licensed under the terms of the
|
|
# Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
# details.
|
|
#
|
|
my $tls = shift;
|
|
my $tls_out = shift;
|
|
my $tgt = shift;
|
|
# FIXME? This method obviously requires a 64 bit OS to build tlsoffsets64.h
|
|
# Another method which doesn't requires to run an executable would be to
|
|
# generate assembler code accessing the various struct members and analyzing
|
|
# it, but that's arguably a lot more effort.
|
|
my $tgt_opt = $tgt eq 'x86_64' ? '-m64' : '-m32';
|
|
open TLS, '<', $tls or die "$0: couldn't open tls file \"$tls\" - $!\n";
|
|
my $struct = '';
|
|
my @fields = ();
|
|
my $def = '';
|
|
$tls = join('', <TLS>);
|
|
$tls =~ s/\A.*\n#pragma once\n//os;
|
|
$tls =~ s/\n[^\n]*gentls_offsets[^\n]*\n(.+)\Z/$1/os;
|
|
my $pre = $`;
|
|
substr($tls, 0, length($pre)) = '';
|
|
$pre .= "\n//*/";
|
|
$tls =~ s%/\*\s*gentls_offsets.*?/\*\s*gentls_offsets\s*\*/%%ogs;
|
|
foreach ($tls =~ /^.*\n/mg) {
|
|
/^}|\s*(?:typedef|const)/o and do {
|
|
$def .= $_ ;
|
|
next;
|
|
};
|
|
$def .= $_ if $struct;
|
|
if (!s/;.*$//o) {
|
|
if (!$struct && /^\s*(?:struct|class)\s*([a-z_0-9]+)/o) {
|
|
$def .= $_;
|
|
$struct = $1
|
|
}
|
|
next;
|
|
}
|
|
s/(?:\[[^\]]*\]|struct|class)//o;
|
|
s/^\s+\S+\s+//o;
|
|
s/[\*\s()]+//go;
|
|
for my $f (split(/,/)) {
|
|
push(@fields, $f);
|
|
}
|
|
}
|
|
close TLS;
|
|
open TMP, '>', "/tmp/$$.cc" or die "$0: couldn't open temporary index file \"/tmp/$$.c\" - $!\n";
|
|
print TMP <<EOF;
|
|
#define __INSIDE_CYGWIN__
|
|
#ifndef __x86_64__
|
|
#define __attribute__(X)
|
|
#endif
|
|
#define __reg1
|
|
#define __reg2
|
|
#define __reg3
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <signal.h>
|
|
#include <windows.h>
|
|
$pre
|
|
$def
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
$struct *foo;
|
|
# define foo_beg ((char *) foo)
|
|
# define offset(f) ((unsigned)((int) (((char *) &(foo->f)) - foo_beg) - CYGTLS_PADSIZE))
|
|
# define poffset(f) ((unsigned)(((char *) &(foo->f)) - ((char *) foo)))
|
|
EOF
|
|
print TMP 'puts ("//;# autogenerated: Do not edit.\n");', "\n\n";
|
|
print TMP "printf (\"//; \$tls::start_offset = -%d;\\n\", CYGTLS_PADSIZE);\n";
|
|
for my $f (@fields) {
|
|
print TMP ' printf ("//; $tls::', $f, ' = %d;\n", ', "offset($f));\n";
|
|
print TMP ' printf ("//; $tls::p', $f, ' = %d;\n", ', "poffset($f));\n";
|
|
}
|
|
print TMP ' puts ("//; __DATA__\n");', "\n";
|
|
for my $f (@fields) {
|
|
print TMP ' printf ("#define tls_', $f, ' (%d)\n", ', "offset($f));\n";
|
|
print TMP ' printf ("#define tls_p', $f, ' (%d)\n", ', "poffset($f));\n";
|
|
}
|
|
|
|
print TMP <<EOF;
|
|
|
|
exit (0);
|
|
}
|
|
EOF
|
|
close TMP;
|
|
my @avoid_headers = qw'-D_XMMINTRIN_H_INCLUDED -D_ADXINTRIN_H_INCLUDED -D_EMMINTRIN_H_INCLUDED -D_X86INTRIN_H_INCLUDED';
|
|
my @cmd = (@ARGV, @avoid_headers, '-o', "/tmp/$$-1.cc", '-E', "/tmp/$$.cc");
|
|
$ENV{CCWRAP_VERBOSE}=1;
|
|
system @cmd;
|
|
system 'g++', "$tgt_opt", '-o', "/tmp/$$.a.out", "/tmp/$$-1.cc" and
|
|
($? == 127 && system 'c++', "$tgt_opt", '-o', "/tmp/$$.a.out", "/tmp/$$-1.cc") and
|
|
die "$0: couldn't generate executable for offset calculation \"/tmp/$$.a.out\" - $!\n";
|
|
open TLS_OUT, '>', $tls_out or die "$0: couldn't open tls index file \"$tls_out\" - $!\n";
|
|
open OFFS, '-|', "/tmp/$$.a.out" or die "$0: couldn't run \"/tmp/$$.a.out\" - $!\n";
|
|
print TLS_OUT <OFFS>;
|
|
close OFFS;
|
|
close TLS_OUT;
|
|
unlink "/tmp/$$.cc", "/tmp/$$-1.cc", "/tmp/$$-1.d", "/tmp/$$.a.out";
|
|
exit(0);
|