sovereignx/.travis/calcrom/calcrom.pl
2019-03-01 01:06:27 -05:00

77 lines
2.2 KiB
Perl
Executable file

#!/usr/bin/perl
use IPC::Cmd qw[ run ];
(@ARGV == 1)
or die "ERROR: no map file specified.\n";
open(my $file, $ARGV[0])
or die "ERROR: could not open file '$ARGV[0]'.\n";
my $src = 0;
my $asm = 0;
while (my $line = <$file>)
{
if ($line =~ /^ \.(\w+)\s+0x[0-9a-f]+\s+(0x[0-9a-f]+) (\w+)\/.+\.o/)
{
my $section = $1;
my $size = hex($2);
my $dir = $3;
if ($section =~ /text/)
{
if ($dir eq 'src')
{
$src += $size;
}
elsif ($dir eq 'asm')
{
$asm += $size;
}
}
}
}
# It sucks that we have to objdump twice, but I can't figure out how to get
# stdin working for subcommands in perl while still having a timeout.
my $total_syms_as_string;
(run (
command => "arm-none-eabi-nm pokeemerald.elf | wc -l",
buffer => \$total_syms_as_string,
timeout => 30
))
or die "ERROR: Error while getting all symbols: $?";
my $undocumented_as_string;
(run (
command => "arm-none-eabi-nm pokeemerald.elf | grep \"Unknown_\\|sub_\" | wc -l",
buffer => \$undocumented_as_string,
timeout => 30
))
or die "ERROR: Error while filtering for undocumented symbols: $?";
my $undocumented = $undocumented_as_string + 0;
(($undocumented != 0) and ($undocumented_as_string ne "0"))
or die "ERROR: Cannot convert string to num: '$undocumented_as_string'";
my $total_syms = $total_syms_as_string + 0;
(($total_syms != 0) and ($total_syms_as_string ne "0"))
or die "ERROR: Cannot convert string to num: '$total_syms_as_string'";
($total_syms != 0)
or die "ERROR: No symbols found.";
my $total = $src + $asm;
my $srcPct = sprintf("%.4f", 100 * $src / $total);
my $asmPct = sprintf("%.4f", 100 * $asm / $total);
my $documented = $total_syms - $undocumented;
my $docPct = sprintf("%.4f", 100 * $documented / $total_syms);
my $undocPct = sprintf("%.4f", 100 * $undocumented / $total_syms);
print "$total total bytes of code\n";
print "$src bytes of code in src ($srcPct%)\n";
print "$asm bytes of code in asm ($asmPct%)\n";
print "\n";
print "$total_syms total symbols\n";
print "$documented symbols documented ($docPct%)\n";
print "$undocumented symbols undocumented ($undocPct%)\n";