@REM Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).

@REM All rights reserved.

@REM This component and the accompanying materials are made available

@REM under the terms of the License "Eclipse Public License v1.0"

@REM which accompanies this distribution, and is available

@REM at the URL "http://www.eclipse.org/legal/epl-v10.html".

@REM

@REM Initial Contributors:

@REM Nokia Corporation - initial contribution.

@REM 

@REM Contributors:

@REM

@goto invoke

#!perl

use strict;

use FindBin;		# for FindBin::Bin

use Getopt::Long;

use Cwd;

$_ = cwd;

tr/\//\\/;

my $Pwd = $_;

my $PerlLibPath;    # fully qualified pathname of the directory containing our Perl modules

# establish the path to the Perl binaries

BEGIN {

	require 5.005_03;				# check user has a version of perl that will cope

# establish the path to the Perl libraries: currently the same directory as this script

	$PerlLibPath = $FindBin::Bin;	# X:/epoc32/tools

	$PerlLibPath =~ s/\//\\/g;	# X:\epoc32\tools

	$PerlLibPath .= "\\";

}

use lib $PerlLibPath;

use Defutl;

use Genutl;

my %opts = ();

my $result = GetOptions(\%opts,

			"srcpath:s",

			"defpath:s",

			"name:s",

			"version:s",

			"alignstack",

			"help",

		       );

Usage() if(!$result || $opts{'help'} || @ARGV < 1);

my $srcPath = $opts{"srcpath"} || $Pwd;

my $defPath = $opts{"defpath"} || $srcPath;

my $outputName = $opts{"name"} || "shim";

my %Version;

if ($opts{version}) {

	%Version = &Genutl_StringToVersion($opts{version}) or die "Bad version number\n";

} else {

	$Version{major} = 0;

	$Version{minor} = 0;

}

my $infile = pop @ARGV;

my @DefData;

eval { &Def_ReadFileL(\@DefData, $infile); } ;

die $@ if $@;

sub WriteFunction($$$) {

  my ($ordinal, $branchTarget, $comment) = @_;

  my $fnName = "export_at_ordinal_$ordinal";

  if ($branchTarget =~ /^\"(.*)\"$/) {

	  $branchTarget = $1;

	}

  if ($comment =~ /(null)/) {

    $comment = $branchTarget;

  }

  print CPP <<FUNCTION_DEFINITION;

EXPORT_C __NAKED__ int $fnName()

//

// $comment

//

	{

	asm("B $branchTarget ");

	}

FUNCTION_DEFINITION

}

sub WriteFunctionAligned($$$) {

  my ($ordinal, $branchTarget, $comment) = @_;

  my $fnName = "export_at_ordinal_$ordinal";

  if ($branchTarget =~ /^\"(.*)\"$/) {

	  $branchTarget = $1;

	}

  if ($comment =~ /(null)/) {

    $comment = $branchTarget;

  }

  print CPP <<FUNCTION_DEFINITION2;

EXPORT_C __NAKED__ int $fnName()

//

// $comment

//

	{

	asm("stmfd sp!, {r4,lr} ");

	asm("mov r4, sp ");

	asm("bic sp, sp, #4 ");

	asm("bl $branchTarget ");

	asm("mov sp, r4 ");

	asm("ldmfd sp!, {r4,pc} ");

	}

FUNCTION_DEFINITION2

}

sub WriteCppHeader($) {

  my ($filename) = @_;

  print CPP <<FILE_HEADER;

//

// $filename - generated by GENSHIMSRC.BAT

//

#include <e32def.h>

#include <e32const.h>

#include <cpudefs.h>

FILE_HEADER

}

sub WriteExport($$$) {

  my ($ordinal, $export, $comment) = @_;

  if ($comment =~ /(null)/) {

    $comment = $export;

  }

  printf DEF "\t${export}=export_at_ordinal_${ordinal}__Fv \@ $ordinal NONAME \; $comment\n";

}

my $cppFile = "$srcPath\\$outputName\.cia";

die "ERROR: Couldn't open $cppFile\n" unless open CPP, ">$cppFile";

my $vstring = &Genutl_VersionToFileAugment(%Version);

my $defFile = "$defPath\\${outputName}$vstring\.def";

die "ERROR: Couldn't open $defFile\n" unless open DEF, ">$defFile";

WriteCppHeader(uc "${outputName}.cia");

printf DEF "EXPORTS\n";

foreach my $defData (@DefData){

  my $ord = $$defData{Ordinal};

  if ($ord) {

	my $name = $$defData{Name};

	my $comment = $$defData{Comment};

	if ($opts{alignstack}) {

		WriteFunctionAligned($ord, $name, $comment);

	} else {

		WriteFunction($ord, $name, $comment);

	}

	WriteExport($ord, $name, $comment);

  }

}

close CPP;

close DEF;

#####################################################################

sub Usage

{

	print <<EOT;

genshimsrc

	Generate source for a shim DLL and its associated deffile from a supplied deffile

Usage:

	genshimsrc [options] deffile

Where:

	[deffile]     The source deffile

Options:

	--srcpath         the path for the output source file (defaults to CWD)

	--defpath         the path for the output DEF file (defaults to srcpath)

	--name            the name to use for the output files (defaults to shim)

	--version         the version to use for the output DEF file (defaults to 0.0)

	--alignstack      use shims which align the stack to an 8 byte boundary

EOT

	exit 1;

}

1;

__END__

# Tell emacs that this is a perl script even 'though it has a .bat extension

# Local Variables:

# mode:perl

# tab-width:4

# End:

:invoke

@perl -x -S genshimsrc.bat %1 %2 %3 %4 %5 %6 %7 %8 %9