libsyscall/xcodescripts/compile-syscalls.pl

   1 #!/usr/bin/perl
   2 #
   3 # Copyright (c) 2010 Apple Inc. All rights reserved.
   4 #
   5 # @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   6 #
   7 # This file contains Original Code and/or Modifications of Original Code
   8 # as defined in and that are subject to the Apple Public Source License
   9 # Version 2.0 (the 'License'). You may not use this file except in
  10 # compliance with the License. The rights granted to you under the License
  11 # may not be used to create, or enable the creation or redistribution of,
  12 # unlawful or unlicensed copies of an Apple operating system, or to
  13 # circumvent, violate, or enable the circumvention or violation of, any
  14 # terms of an Apple operating system software license agreement.
  15 #
  16 # Please obtain a copy of the License at
  17 # http://www.opensource.apple.com/apsl/ and read it before using this file.
  18 #
  19 # The Original Code and all software distributed under the License are
  20 # distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  21 # EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  22 # INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  23 # FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  24 # Please see the License for the specific language governing rights and
  25 # limitations under the License.
  26 #
  27 # @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  28 #
  29
  30 use warnings;
  31 use strict;
  32
  33 use Data::Dumper;
  34 use File::Spec;
  35 use IO::File;
  36 use File::Basename ();
  37
  38 my $basename = File::Basename::basename($0);
  39
  40 sub usage {
  41         print "$basename: <source list> <output archive>";
  42         exit 1;
  43 }
  44
  45 usage unless scalar(@ARGV) == 2;
  46
  47 my $sourceList = $ARGV[0];
  48 my $outputFile = $ARGV[1];
  49
  50 my $f = IO::File->new($sourceList, 'r');
  51 die "$basename: $sourceList: $!\n" unless defined($f);
  52
  53 my @objects;
  54 my @archs = split / /, $ENV{"ARCHS"};
  55 my @sources = <$f>;
  56 chomp @sources;
  57
  58 undef $f;
  59
  60 # compiler options
  61 chomp(my $CC = `xcrun -sdk "$ENV{'SDKROOT'}" -find cc`);
  62 my @CFLAGS = (
  63         "-x assembler-with-cpp",
  64         "-c",
  65         "-isysroot", $ENV{'SDKROOT'} || "/",
  66         "-I".$ENV{"SDKROOT"}."/System/Library/Frameworks/System.framework/PrivateHeaders",
  67 );
  68
  69 chomp(my $LIBTOOL = `xcrun -sdk "$ENV{'SDKROOT'}" -find libtool`);
  70 my @LIBTOOLFLAGS = (
  71         "-static",
  72 );
  73
  74 # architectures
  75 for my $arch (@archs) {
  76         push(@CFLAGS, "-arch $arch");
  77 }
  78
  79 # do each compile
  80 my $jobs = `sysctl -n hw.ncpu` + 2;
  81
  82 for my $src (@sources) {
  83         if ($jobs == 0) {
  84                 if (wait != -1) {
  85                         $jobs++;
  86                 } else {
  87                         printf "wait exited with -1 (no children) and exhausted allowed jobs. Exiting.\n";
  88                         exit 1;
  89                 }
  90
  91                 if ($? != 0) {
  92                         printf "$CC exited with value %d\n", $? >> 8;
  93                         exit 1;
  94                 }
  95         }
  96
  97         (my $o = $src) =~ s/\.s$/\.o/;
  98         my $compileCommand = "$CC " . join(' ', @CFLAGS) . " -o $o $src";
  99         printf $compileCommand . "\n";
 100
 101         $jobs--;
 102         my $pid = fork();
 103         if ($pid == 0) {
 104                 exec($compileCommand);
 105         }
 106         push(@objects, $o);
 107 }
 108
 109 while (wait != -1) {
 110         if ($? != 0) {
 111                 printf "$CC exited with value %d\n", $? >> 8;
 112                 exit 1;
 113         }
 114 }
 115
 116 printf "Finished assembly, beginning link.\n";
 117
 118 # final link
 119
 120 if (-f $outputFile) {
 121         unlink($outputFile);
 122 }
 123
 124 my $linkCommand = "$LIBTOOL " . join(' ', @LIBTOOLFLAGS) . " -o $outputFile " . join(' ', @objects);
 125
 126 printf $linkCommand . "\n";
 127 system($linkCommand);
 128 if ($? != 0) {
 129         print "$LIBTOOL exited with value %d\n", $? >> 8;
 130         exit 1;
 131 }