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 --header header file";
  26
  27 my $rtype_template = quotemeta("#rtype#");
  28 my $op_template = quotemeta("#op#");
  29
  30 my $prefix;
  31 my $header;
  32 my $enable_dfg = 0;
  33 my $file;
  34
  35 my $getOptionsResult = GetOptions(
  36     'prefix=s' => \$prefix,
  37     'header=s' => \$header,
  38     'dfg!' => \$enable_dfg
  39 );
  40
  41 $file = $ARGV[0];
  42
  43 die "$usage\n" unless ($header and $prefix and $file);
  44
  45 my $stub_template = "";
  46 my $output_end = "";
  47 my $stub = "";
  48
  49 my $rtype = "";
  50 my $op = "";
  51 my $if_counter = 0;
  52 my $dfg_begin = 0;
  53
  54 print STDERR "Creating JIT stubs for $file \n";
  55 open(IN, $header) or die "No such file $header";
  56
  57 while ( $_ = <IN> ) {
  58     if ( /^$prefix\_BEGIN\((.*)\)/ ) {
  59         $stub = $1;
  60         print $stub . "\n";
  61     }
  62     if ( /^$prefix\((.*)\)/ ) {
  63         $stub_template .= $1 . "\n";
  64     }
  65     if ( /^$prefix\_END\((.*)\)/ ) {
  66         $output_end .= $1 . "\n";
  67     }
  68 }
  69
  70 close(IN);
  71 open(IN, $file) or die "No such file $file";
  72
  73 while ( $_ = <IN> ) {
  74     if ( /^#if (.*)/ ) {
  75         $if_counter++;
  76         if ( $1 eq "ENABLE(DFG_JIT)" ) {
  77             $dfg_begin = $if_counter;
  78         }
  79     }
  80     if ( /^#endif/ ) {
  81         if ( $if_counter == $dfg_begin ) {
  82             $dfg_begin = 0;
  83         }
  84         $if_counter--;
  85     }
  86     if ( /^DEFINE_STUB_FUNCTION\((.*), (.*)\)/ ) {
  87         $stub = $stub_template;
  88         $rtype = quotemeta($1);
  89         $op = quotemeta($2);
  90         $stub =~ s/$rtype_template/$rtype/g;
  91         $stub =~ s/$op_template/$op/g;
  92         $stub =~ s/\\\*/\*/g;
  93         if ( $enable_dfg == 1 || $dfg_begin == 0 ) {
  94             print $stub;
  95         }
  96     }
  97 }
  98
  99 print $output_end;
 100
 101 close(IN);