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#!/usr/bin/perl
#
# Walk through source, add labels and make classes
#
use strict;
use warnings;
my %deplist;
#open class file and write preamble
open(my $class, '>', 'tommath_class.h') or die "Couldn't open tommath_class.h for writing\n";
print {$class} "#if !(defined(LTM1) && defined(LTM2) && defined(LTM3))\n#if defined(LTM2)\n#define LTM3\n#endif\n#if defined(LTM1)\n#define LTM2\n#endif\n#define LTM1\n\n#if defined(LTM_ALL)\n";
foreach my $filename (glob 'bn*.c') {
my $define = $filename;
print "Processing $filename\n";
# convert filename to upper case so we can use it as a define
$define =~ tr/[a-z]/[A-Z]/;
$define =~ tr/\./_/;
print {$class} "#define $define\n";
# now copy text and apply #ifdef as required
my $apply = 0;
open(my $src, '<', $filename);
open(my $out, '>', 'tmp');
# first line will be the #ifdef
my $line = <$src>;
if ($line =~ /include/) {
print {$out} $line;
} else {
print {$out} "#include <tommath.h>\n#ifdef $define\n$line";
$apply = 1;
}
while (<$src>) {
if (!($_ =~ /tommath\.h/)) {
print {$out} $_;
}
}
if ($apply == 1) {
print {$out} "#endif\n";
}
close $src;
close $out;
unlink $filename;
rename 'tmp', $filename;
}
print {$class} "#endif\n\n";
# now do classes
foreach my $filename (glob 'bn*.c') {
open(my $src, '<', $filename) or die "Can't open source file!\n";
# convert filename to upper case so we can use it as a define
$filename =~ tr/[a-z]/[A-Z]/;
$filename =~ tr/\./_/;
print {$class} "#if defined($filename)\n";
my $list = $filename;
# scan for mp_* and make classes
while (<$src>) {
my $line = $_;
while ($line =~ m/(fast_)*(s_)*mp\_[a-z_0-9]*/) {
$line = $';
# now $& is the match, we want to skip over LTM keywords like
# mp_int, mp_word, mp_digit
if (!($& eq 'mp_digit') && !($& eq 'mp_word') && !($& eq 'mp_int') && !($& eq 'mp_min_u32')) {
my $a = $&;
$a =~ tr/[a-z]/[A-Z]/;
$a = 'BN_' . $a . '_C';
if (!($list =~ /$a/)) {
print {$class} " #define $a\n";
}
$list = $list . ',' . $a;
}
}
}
$deplist{$filename} = $list;
print {$class} "#endif\n\n";
close $src;
}
print {$class} "#ifdef LTM3\n#define LTM_LAST\n#endif\n#include <tommath_superclass.h>\n#include <tommath_class.h>\n#else\n#define LTM_LAST\n#endif\n";
close $class;
#now let's make a cool call graph...
open(my $out, '>', 'callgraph.txt');
my $indent = 0;
my $list;
foreach (sort keys %deplist) {
$list = '';
draw_func($deplist{$_});
print {$out} "\n\n";
}
close $out;
sub draw_func
{
my @funcs = split ',', $_[0];
if ($list =~ /$funcs[0]/) {
return;
} else {
$list = $list . $funcs[0];
}
if ($indent == 0) {
} elsif ($indent >= 1) {
print {$out} '| ' x ($indent - 1) . '+--->';
}
print {$out} $funcs[0] . "\n";
shift @funcs;
my $temp = $list;
foreach my $i (@funcs) {
++$indent;
draw_func($deplist{$i}) if exists $deplist{$i};
--$indent;
}
$list = $temp;
return;
}