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#!/usr/bin/perl
#
# Walk through source, add labels and make classes
#
#use strict;
my %deplist;
#open class file and write preamble
open(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 $apply = 0;
open(SRC, "<$filename");
open(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 $filename (glob "bn*.c") {
open(SRC, "<$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")) {
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(OUT,">callgraph.txt");
$indent = 0;
foreach (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{$i});
--$indent;
}
$list = $temp;
}
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