Mercurial > dropbear

annotate libtommath/dep.pl @ 1605:bff41a61a1b6

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Disable wrapfds outside of fuzzed code
author Matt Johnston <matt@ucc.asn.au>
date Thu, 08 Mar 2018 23:22:53 +0800
parents 8bba51a55704
children f52919ffd3b1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/perl
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2 #
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3 # Walk through source, add labels and make classes
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4 #
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5 use strict;
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6 use warnings;
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8 my %deplist;
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9
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10 #open class file and write preamble
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11 open(my $class, '>', 'tommath_class.h') or die "Couldn't open tommath_class.h for writing\n";
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12 print {$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";
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13
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14 foreach my $filename (glob 'bn*.c') {
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15 my $define = $filename;
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16
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17 print "Processing $filename\n";
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18
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19 # convert filename to upper case so we can use it as a define
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20 $define =~ tr/[a-z]/[A-Z]/;
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21 $define =~ tr/\./_/;
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22 print {$class} "#define $define\n";
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24 # now copy text and apply #ifdef as required
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25 my $apply = 0;
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26 open(my $src, '<', $filename);
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27 open(my $out, '>', 'tmp');
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29 # first line will be the #ifdef
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30 my $line = <$src>;
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31 if ($line =~ /include/) {
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32 print {$out} $line;
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33 } else {
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34 print {$out} "#include <tommath.h>\n#ifdef $define\n$line";
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35 $apply = 1;
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36 }
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37 while (<$src>) {
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38 if (!($_ =~ /tommath\.h/)) {
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39 print {$out} $_;
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40 }
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41 }
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42 if ($apply == 1) {
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43 print {$out} "#endif\n";
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44 }
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45 close $src;
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46 close $out;
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47
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48 unlink $filename;
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49 rename 'tmp', $filename;
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50 }
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51 print {$class} "#endif\n\n";
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53 # now do classes
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54
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55 foreach my $filename (glob 'bn*.c') {
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56 open(my $src, '<', $filename) or die "Can't open source file!\n";
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58 # convert filename to upper case so we can use it as a define
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59 $filename =~ tr/[a-z]/[A-Z]/;
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60 $filename =~ tr/\./_/;
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61
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62 print {$class} "#if defined($filename)\n";
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63 my $list = $filename;
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64
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65 # scan for mp_* and make classes
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66 while (<$src>) {
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67 my $line = $_;
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68 while ($line =~ m/(fast_)*(s_)*mp\_[a-z_0-9]*/) {
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69 $line = $';
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70 # now $& is the match, we want to skip over LTM keywords like
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71 # mp_int, mp_word, mp_digit
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72 if (!($& eq 'mp_digit') && !($& eq 'mp_word') && !($& eq 'mp_int') && !($& eq 'mp_min_u32')) {
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73 my $a = $&;
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74 $a =~ tr/[a-z]/[A-Z]/;
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75 $a = 'BN_' . $a . '_C';
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76 if (!($list =~ /$a/)) {
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77 print {$class} " #define $a\n";
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78 }
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79 $list = $list . ',' . $a;
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80 }
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81 }
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82 }
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83 $deplist{$filename} = $list;
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84
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85 print {$class} "#endif\n\n";
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86 close $src;
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87 }
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88
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89 print {$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";
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90 close $class;
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91
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92 #now let's make a cool call graph...
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93
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94 open(my $out, '>', 'callgraph.txt');
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95 my $indent = 0;
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96 my $list;
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97 foreach (sort keys %deplist) {
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98 $list = '';
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99 draw_func($deplist{$_});
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100 print {$out} "\n\n";
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101 }
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102 close $out;
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103
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104 sub draw_func
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105 {
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106 my @funcs = split ',', $_[0];
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107 if ($list =~ /$funcs[0]/) {
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108 return;
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109 } else {
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110 $list = $list . $funcs[0];
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111 }
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112 if ($indent == 0) {
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113 } elsif ($indent >= 1) {
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114 print {$out} '| ' x ($indent - 1) . '+--->';
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115 }
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116 print {$out} $funcs[0] . "\n";
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117 shift @funcs;
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118 my $temp = $list;
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119 foreach my $i (@funcs) {
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120 ++$indent;
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121 draw_func($deplist{$i}) if exists $deplist{$i};
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122 --$indent;
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123 }
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124 $list = $temp;
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125 return;
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126 }
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127