create_jit_stubs

   1 #! /usr/bin/perl -w
   2 #
   3 # Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies)
   4 # Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
   5 #
   6 # This library is free software; you can redistribute it and/or
   7 # modify it under the terms of the GNU Library General Public
   8 # License as published by the Free Software Foundation; either
   9 # version 2 of the License, or (at your option) any later version.
  10 #
  11 # This library is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # Library General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU Library General Public License
  17 # along with this library; see the file COPYING.LIB.  If not, write to
  18 # the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19 # Boston, MA 02110-1301, USA.
  20
  21 use strict;
  22 use File::Basename;
  23 use Getopt::Long;
  24
  25 my $usage = basename($0) . " --prefix prefix file";
  26
  27 my $rtype_template = quotemeta("#rtype#");
  28 my $op_template = quotemeta("#op#");
  29
  30 my $prefix;
  31 my $enable_dfg = 0;
  32 my $file;
  33
  34 my $getOptionsResult = GetOptions(
  35     'prefix=s' => \$prefix,
  36     'dfg!' => \$enable_dfg
  37 );
  38
  39 $file = $ARGV[0];
  40
  41 die "$usage\n" unless ($prefix and $file);
  42
  43 my $stub_template = "";
  44 my $output_end = "";
  45 my $stub = "";
  46
  47 my $rtype = "";
  48 my $op = "";
  49 my $if_counter = 0;
  50 my $dfg_begin = 0;
  51
  52 print STDERR "Creating JIT stubs for $file \n";
  53 open(IN, $file) or die "No such file $file";
  54
  55 while ( $_ = <IN> ) {
  56     if ( /^#if (.*)/ ) {
  57         $if_counter++;
  58         if ( $1 eq "ENABLE(DFG_JIT)" ) {
  59             $dfg_begin = $if_counter;
  60         }
  61     }
  62     if ( /^#endif/ ) {
  63         if ( $if_counter == $dfg_begin ) {
  64             $dfg_begin = 0;
  65         }
  66         $if_counter--;
  67     }
  68     if ( /^$prefix\_BEGIN\((.*)\)/ ) {
  69         $stub = $1;
  70         print $stub . "\n";
  71     }
  72     if ( /^$prefix\((.*)\)/ ) {
  73         $stub_template .= $1 . "\n";
  74     }
  75     if ( /^$prefix\_END\((.*)\)/ ) {
  76         $output_end .= $1 . "\n";
  77     }
  78     if ( /^DEFINE_STUB_FUNCTION\((.*), (.*)\)/ ) {
  79         $stub = $stub_template;
  80         $rtype = quotemeta($1);
  81         $op = quotemeta($2);
  82         $stub =~ s/$rtype_template/$rtype/g;
  83         $stub =~ s/$op_template/$op/g;
  84         $stub =~ s/\\\*/\*/g;
  85         if ( $enable_dfg == 1 || $dfg_begin == 0 ) {
  86             print $stub;
  87         }
  88     }
  89 }
  90
  91 print $output_end;
  92
  93 close(IN);