mirror of https://github.com/MidnightCommander/mc
52 lines
1.2 KiB
Perl
Executable File
52 lines
1.2 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
|
|
# Copyright (c) 2003, Pavel Roskin
|
|
# This script is Free Software, and it can be copied, distributed and
|
|
# modified under the terms of GNU General Public License, version 2.
|
|
|
|
# Run this script on the map with cross-reference generated by GNU ld,
|
|
# and it will generate a list of symbols that don't need to be global.
|
|
# To create the map, run something like this:
|
|
# make LDFLAGS=-Wl,-Map,output.map,--cref
|
|
|
|
use strict;
|
|
|
|
my %symbols;
|
|
my %syms;
|
|
my %objs;
|
|
|
|
if ($#ARGV != 0) {
|
|
print "Usage: unrefglobals.pl mapfile\n";
|
|
exit 1;
|
|
}
|
|
|
|
if (!open (MAP, "$ARGV[0]")) {
|
|
print "Cannot open file \"$ARGV[0]\"\n";
|
|
exit 1;
|
|
}
|
|
|
|
my $line;
|
|
my $next_line = <MAP>;
|
|
while (1) {
|
|
last unless $next_line;
|
|
$line = $next_line;
|
|
$next_line = <MAP>;
|
|
next unless ($line =~ m{^[A-Za-z_][A-Za-z0-9_]* +[^ /][^ ]+\.o$} or
|
|
$line =~ m{^[A-Za-z_][A-Za-z0-9_]* +[^ /][^ ]+\.a\([^ ]+\.o\)$});
|
|
if (!$next_line or ($next_line !~ /^ /)) {
|
|
my @arr = split (' ', $line);
|
|
$symbols{$arr[0]} = $arr[1];
|
|
$syms{$arr[0]} = 1;
|
|
$objs{$arr[1]} = 1;
|
|
}
|
|
}
|
|
|
|
close(MAP);
|
|
|
|
foreach my $obj (sort keys %objs) {
|
|
print "$obj\n";
|
|
foreach my $sym (sort keys %syms) {
|
|
print "\t$sym\n" if ($symbols{$sym} eq $obj);
|
|
}
|
|
}
|