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|
#!/usr/bin/perl -w
#
# $Id: ldscript_patcher.pl,v 1.2 2009-01-28 16:35:28 potyra Exp $
#
# Copyright (C) 2005-2009 FAUmachine Team <info@faumachine.org>.
# This program is free software. You can redistribute it and/or modify it
# under the terms of the GNU General Public License, either version 2 of
# the License, or (at your option) any later version. See COPYING.
$DEBUG = 0;
sub check_module
{
if ($DEBUG) {
print "DEBUG: $_[0]\n";
}
if ($_[0] !~ /SEG_.*/ and $_[0] !~ /OFF_.*/) {
return 1;
} else {
return 0;
}
}
sub mod_symbol
{
$_ = $_[0];
if (($_[0] =~ /SEG_.*/ or $_[0] =~ /OFF_.*/) ) {
s/^(.)(.)(.)(.)(.*)$/$5/;
if ($DEBUG) {
print "DEBUG: $_[0] -> $_\n";
}
}
return $_;
}
$PROGRAM = "ldscript_patcher.pl";
$NM = "nm";
$NM_ARGS = "-o ";
$SIZE = "size";
$SIZE_ARGS = " ";
$in_script = shift(@ARGV);
$out_script = shift(@ARGV);
@obj_files = @ARGV;
%sym_table = ();
foreach $obj_file (@obj_files) {
open(SYM_LISTING, "${NM} ${NM_ARGS} ${obj_file} |")
|| die "$PROGRAM: unable to use process inputfile \"$obj_file\" ($!)";
#Read symbol table
while (defined($line = <SYM_LISTING>)) {
# Look for entries
if ($line =~ /(\S*):(\S*)\s*(\w)\s*(\S*)\s*.*/) {
$module = $1;
$address = $2;
$type= $3;
$symbol = $4;
if ($DEBUG) {
print "module: $module address: $address symbol: $symbol type: $type\n";
}
# add just global symbol
if ($type eq "T" or $type eq "C") {
$sym_table{$symbol} = $module;
} elsif ($type eq "D" or $type eq "R") {
if ($DEBUG) {
print "DEBUG: $symbol($type) -> ";
}
$symbol = mod_symbol($symbol);
if (length($symbol) < 2) {
print "ERROR: $symbol($type,$module)\n";
}
if ($symbol !~ /\s/) {
$sym_table{$symbol} = $module;
if ($DEBUG) {
print "\n";
}
} else {
print "Error symbol: $symbol\n";
}
}
}
}
close(SYM_LISTING)
|| die "$PROGRAM: unable to close object file \"$in_script\" ($!)";
}
open(IN, $in_script)
|| die "$PROGRAM: unable to open input file \"$in_script\" ($!)";
open(OUT, ">$out_script")
|| die "$PROGRAM: unable to open output file \"$out_script\" ($!)";
while (defined($line = <IN>)) {
if ($line =~ /\bCREATE_SEGOFF_SYMBOLS\b/) {
foreach $sym_entry (keys (%sym_table)) {
print OUT "SEG_$sym_entry = ($sym_entry >> 4) & 0xf000;\n";
print OUT "OFF_$sym_entry = ($sym_entry & 0xffff);\n";
}
}elsif ($line =~ /(.*)OBJCODE_SIZE\((.*)\)(.*)/) {
$line_head = $1;
$obj_file = $2;
$line_tail = $3;
$total_size = 0;
# Use 'size' to get total size of objectcode
open(SIZE_LISTING, "${SIZE} ${SIZE_ARGS} ${obj_file} |")
|| die "$PROGRAM: unable to get size of file \"$obj_file\" ($!)";
while (defined($line = <SIZE_LISTING>)) {
# Look for entries
if ($line =~ /\s*(\d+)\s*(\d+)\s*(\d+)\s*(\d+)\s*(\w+)\s*.*/) {
$size_text = $1;
$size_data = $2;
$size_bss = $3;
$size_dec = $4;
$size_hex = $5;
# Add text section size plus max. alignment of 4bytes
if ($size_text ne 0) {
$total_size += $size_text + 4;
}
if ($size_data ne 0) {
$total_size += $size_data + 4;
}
if ($DEBUG) {
print "text size: $size_text data size: $size_data "
. "bss size: $size_bss "
. "dec size: $size_dec hex size: $size_hex "
. "sum: $total_size\n";
}
}
}
close(SIZE_LISTING)
|| die "$PROGRAM: unable to close size listing of \"$obj_file\" ($!)";
print OUT "${line_head} ${total_size} ${line_tail}";
} else {
print OUT "$line";
}
}
close(IN)
|| die "$PROGRAM: unable to close input file \"$in_script\" ($!)";
close(OUT)
|| die "$PROGRAM: unable to close output file \"$in_script\" ($!)";
|
