172 lines
3.7 KiB
Perl
Executable File
172 lines
3.7 KiB
Perl
Executable File
#!/usr/bin/perl
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#
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# Walk through source, add labels and make classes
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#
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use strict;
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use warnings;
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my %deplist;
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#open class file and write preamble
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open(my $class, '>', 'tommath_class.h') or die "Couldn't open tommath_class.h for writing\n";
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print {$class} << 'EOS';
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#if !(defined(LTM1) && defined(LTM2) && defined(LTM3))
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#if defined(LTM2)
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# define LTM3
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#endif
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#if defined(LTM1)
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# define LTM2
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#endif
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#define LTM1
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#if defined(LTM_ALL)
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EOS
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foreach my $filename (glob 'bn*.c') {
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my $define = $filename;
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print "Processing $filename\n";
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# convert filename to upper case so we can use it as a define
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$define =~ tr/[a-z]/[A-Z]/;
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$define =~ tr/\./_/;
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print {$class} << "EOS";
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# define $define
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EOS
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# now copy text and apply #ifdef as required
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my $apply = 0;
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open(my $src, '<', $filename);
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open(my $out, '>', 'tmp');
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# first line will be the #ifdef
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my $line = <$src>;
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if ($line =~ /include/) {
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print {$out} $line;
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} else {
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print {$out} << "EOS";
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#include "tommath_private.h"
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#ifdef $define
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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$line
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EOS
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$apply = 1;
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}
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while (<$src>) {
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if (!($_ =~ /tommath\.h/)) {
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print {$out} $_;
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}
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}
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if ($apply == 1) {
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print {$out} << 'EOS';
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#endif
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EOS
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}
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close $src;
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close $out;
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unlink $filename;
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rename 'tmp', $filename;
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}
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print {$class} << 'EOS';
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#endif
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EOS
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# now do classes
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foreach my $filename (glob 'bn*.c') {
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open(my $src, '<', $filename) or die "Can't open source file!\n";
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# convert filename to upper case so we can use it as a define
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$filename =~ tr/[a-z]/[A-Z]/;
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$filename =~ tr/\./_/;
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print {$class} << "EOS";
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#if defined($filename)
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EOS
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my $list = $filename;
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# scan for mp_* and make classes
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while (<$src>) {
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my $line = $_;
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while ($line =~ m/(fast_)*(s_)*mp\_[a-z_0-9]*/) {
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$line = $';
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# now $& is the match, we want to skip over LTM keywords like
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# mp_int, mp_word, mp_digit
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if (!($& eq 'mp_digit') && !($& eq 'mp_word') && !($& eq 'mp_int')) {
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my $a = $&;
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$a =~ tr/[a-z]/[A-Z]/;
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$a = 'BN_' . $a . '_C';
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if (!($list =~ /$a/)) {
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print {$class} << "EOS";
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# define $a
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EOS
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}
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$list = $list . ',' . $a;
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}
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}
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}
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$deplist{$filename} = $list;
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print {$class} << 'EOS';
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#endif
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EOS
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close $src;
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}
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print {$class} << 'EOS';
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#ifdef LTM3
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# define LTM_LAST
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#endif
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#include "tommath_superclass.h"
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#include "tommath_class.h"
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#else
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# define LTM_LAST
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#endif
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EOS
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close $class;
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#now let's make a cool call graph...
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open(my $out, '>', 'callgraph.txt');
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my $indent = 0;
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my $list;
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foreach (sort keys %deplist) {
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$list = '';
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draw_func($deplist{$_});
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print {$out} "\n\n";
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}
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close $out;
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sub draw_func
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{
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my @funcs = split ',', $_[0];
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# try this if you want to have a look at a minimized version of the callgraph without all the trivial functions
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#if ($list =~ /$funcs[0]/ || $funcs[0] =~ /BN_MP_(ADD|SUB|CLEAR|CLEAR_\S+|DIV|MUL|COPY|ZERO|GROW|CLAMP|INIT|INIT_\S+|SET|ABS|CMP|CMP_D|EXCH)_C/) {
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if ($list =~ /$funcs[0]/) {
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return;
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} else {
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$list = $list . $funcs[0];
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}
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if ($indent == 0) {
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} elsif ($indent >= 1) {
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print {$out} '| ' x ($indent - 1) . '+--->';
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}
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print {$out} $funcs[0] . "\n";
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shift @funcs;
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my $temp = $list;
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foreach my $i (@funcs) {
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++$indent;
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draw_func($deplist{$i}) if exists $deplist{$i};
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--$indent;
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}
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$list = $temp;
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return;
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}
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