armccのプリプロセスファイルから展開されたシステムインクルードファイルを削除するスクリプト

shrink_sysinc.pl

#!/usr/local/bin/perl
# 
# Copyright 2010-2012 ARM Limited.  All Rights Reserved.
# <[email protected]>

# shrink_sysinc.pl - tries to remove expanded system include file from preprocessed source code
# 
# Usage: shrink_sysinc.pl test.ii > test.cpp

# TODO: 

# matching patterns in pre-processed file:
#
# 1 "J:\\RVCT\\4.1\\713\\include\\rw/_defs.h"
# 12 "d:\\SDK\\test\\mneme\\precompiled\\precompiled.h"
#line 123 "C:\\RVCT\\4.1\\995\\include\\inttypes.h"

use File::Basename;

$nested = 0;
$mask = 0;
$inc_name = "";
$inc_line = 0;
$once = 1;
$ARMCCINC = $ENV{'ARMCCINC'};

if ($#ARGV == -1)
{
	print " shrink_sysinc.pl - Remove expanded system include file from a preprocessed source code\n";
	print " Usage: shrink_sysinc.pl test.ii > test.cpp\n";
	exit(0);
}

if ($ARMCCINC eq '')
{
	# if ARMCCINC environement variable is not set, you can hard code system include
	# path here (forward match and case sensitive)
	# e.g. 	$ARMCCINC = 'C:\RVCT\5.02\28\include';
	$ARMCCINC = 'J:\RVCT\5.03\102\include';
}

# change single back-slash to be 4 (for regexp), since precompiled source has 2
$ARMCCINC =~ s/\\/\\\\\\\\/g;

for ($i = 0; $i <= $#ARGV; $i++) {
	open(IN, $ARGV[$i]);
	while ($buf = <IN>) {
		if ($buf =~ /^\#(line)* ([0-9]{1,10}) \"${ARMCCINC}.*\"/ ) {
			if ($nested =! 0 && $once == 1) {
				$mask = 1;
				$once = 0;
				$sys_inc = $buf;
				$sys_inc =~ s/(^\#(line)* )([0-9]{1,10})( )(\"${ARMCCINC}.*)(\")/$5/g;
				chomp($sys_inc);
				$result = basename($sys_inc);
				print "#include <$result>\n";
			}
		} else {
			if ($buf =~ /^\#(line)* ([0-9]{1,10}) \".*?\"/ ) {
				$inc_name = $buf;
				$inc_name =~ s/(^\#(line)* )([0-9]{1,10})( )(\".*?\")/$5/g;
				$nested += 1;
				$inc_line = 1;
				print "// $buf";
				$once = 1;
			}
		}
		if ( $mask == 1 ) {
			if (index ($buf, $inc_name) != -1) {
				$nested -= 1;
				$mask = 0;
			}
		}
		if ($mask == 0 && $inc_line == 0) {
			print $buf;
		}
		$inc_line = 0;
	}
	close(IN);
}