1 | @rem = '--*-Perl-*--
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2 | @echo off
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3 | if "%OS%" == "Windows_NT" goto WinNT
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4 | perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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5 | goto endofperl
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6 | :WinNT
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7 | perl -x -S %0 %*
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8 | if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
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9 | if %errorlevel% == 9009 echo You do not have Perl in your PATH.
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10 | if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
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11 | goto endofperl
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12 | @rem ';
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13 | #!perl
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14 | #line 15
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15 | eval 'exec c:\shaoqunWu\perl\bin\perl.exe -S $0 ${1+"$@"}'
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16 | if $running_under_some_shell;
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17 |
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18 | use strict;
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19 |
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20 | use Config;
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21 | use File::Path qw(mkpath);
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22 | use Getopt::Std;
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23 |
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24 | # Make sure read permissions for all are set:
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25 | if (defined umask && (umask() & 0444)) {
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26 | umask (umask() & ~0444);
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27 | }
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28 |
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29 | getopts('Dd:rlhaQe');
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30 | use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q $opt_e);
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31 | die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a);
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32 | my @inc_dirs = inc_dirs() if $opt_a;
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33 |
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34 | my $Exit = 0;
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35 |
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36 | my $Dest_dir = $opt_d || $Config{installsitearch};
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37 | die "Destination directory $Dest_dir doesn't exist or isn't a directory\n"
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38 | unless -d $Dest_dir;
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39 |
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40 | my @isatype = qw(
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41 | char uchar u_char
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42 | short ushort u_short
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43 | int uint u_int
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44 | long ulong u_long
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45 | FILE key_t caddr_t
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46 | float double size_t
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47 | );
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48 |
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49 | my %isatype;
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50 | @isatype{@isatype} = (1) x @isatype;
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51 | my $inif = 0;
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52 | my %Is_converted;
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53 | my %bad_file = ();
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54 |
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55 | @ARGV = ('-') unless @ARGV;
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56 |
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57 | build_preamble_if_necessary();
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58 |
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59 | sub reindent($) {
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60 | my($text) = shift;
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61 | $text =~ s/\n/\n /g;
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62 | $text =~ s/ /\t/g;
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63 | $text;
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64 | }
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65 |
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66 | my ($t, $tab, %curargs, $new, $eval_index, $dir, $name, $args, $outfile);
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67 | my ($incl, $incl_type, $next);
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68 | while (defined (my $file = next_file())) {
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69 | if (-l $file and -d $file) {
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70 | link_if_possible($file) if ($opt_l);
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71 | next;
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72 | }
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73 |
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74 | # Recover from header files with unbalanced cpp directives
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75 | $t = '';
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76 | $tab = 0;
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77 |
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78 | # $eval_index goes into ``#line'' directives, to help locate syntax errors:
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79 | $eval_index = 1;
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80 |
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81 | if ($file eq '-') {
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82 | open(IN, "-");
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83 | open(OUT, ">-");
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84 | } else {
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85 | ($outfile = $file) =~ s/\.h$/.ph/ || next;
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86 | print "$file -> $outfile\n" unless $opt_Q;
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87 | if ($file =~ m|^(.*)/|) {
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88 | $dir = $1;
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89 | mkpath "$Dest_dir/$dir";
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90 | }
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91 |
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92 | if ($opt_a) { # automagic mode: locate header file in @inc_dirs
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93 | foreach (@inc_dirs) {
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94 | chdir $_;
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95 | last if -f $file;
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96 | }
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97 | }
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98 |
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99 | open(IN,"$file") || (($Exit = 1),(warn "Can't open $file: $!\n"),next);
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100 | open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n";
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101 | }
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102 |
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103 | print OUT
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104 | "require '_h2ph_pre.ph';\n\n",
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105 | "no warnings 'redefine';\n\n";
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106 |
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107 | while (defined (local $_ = next_line($file))) {
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108 | if (s/^\s*\#\s*//) {
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109 | if (s/^define\s+(\w+)//) {
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110 | $name = $1;
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111 | $new = '';
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112 | s/\s+$//;
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113 | s/\(\w+\s*\(\*\)\s*\(\w*\)\)\s*(-?\d+)/$1/; # (int (*)(foo_t))0
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114 | if (s/^\(([\w,\s]*)\)//) {
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115 | $args = $1;
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116 | my $proto = '() ';
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117 | if ($args ne '') {
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118 | $proto = '';
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119 | foreach my $arg (split(/,\s*/,$args)) {
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120 | $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/;
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121 | $curargs{$arg} = 1;
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122 | }
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123 | $args =~ s/\b(\w)/\$$1/g;
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124 | $args = "my($args) = \@_;\n$t ";
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125 | }
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126 | s/^\s+//;
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127 | expr();
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128 | $new =~ s/(["\\])/\\$1/g; #"]);
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129 | EMIT:
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130 | $new = reindent($new);
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131 | $args = reindent($args);
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132 | if ($t ne '') {
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133 | $new =~ s/(['\\])/\\$1/g; #']);
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134 | if ($opt_h) {
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135 | print OUT $t,
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136 | "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
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137 | $eval_index++;
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138 | } else {
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139 | print OUT $t,
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140 | "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
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141 | }
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142 | } else {
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143 | print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n";
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144 | }
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145 | %curargs = ();
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146 | } else {
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147 | s/^\s+//;
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148 | expr();
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149 | $new = 1 if $new eq '';
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150 | $new = reindent($new);
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151 | $args = reindent($args);
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152 | if ($t ne '') {
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153 | $new =~ s/(['\\])/\\$1/g; #']);
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154 |
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155 | if ($opt_h) {
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156 | print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n";
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157 | $eval_index++;
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158 | } else {
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159 | print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n";
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160 | }
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161 | } else {
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162 | # Shunt around such directives as `#define FOO FOO':
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163 | next if " \&$name" eq $new;
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164 |
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165 | print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n";
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166 | }
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167 | }
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168 | } elsif (/^(include|import|include_next)\s*[<\"](.*)[>\"]/) {
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169 | $incl_type = $1;
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170 | $incl = $2;
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171 | if (($incl_type eq 'include_next') ||
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172 | ($opt_e && exists($bad_file{$incl}))) {
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173 | $incl =~ s/\.h$/.ph/;
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174 | print OUT ($t,
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175 | "eval {\n");
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176 | $tab += 4;
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177 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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178 | print OUT ($t, "my(\@REM);\n");
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179 | if ($incl_type eq 'include_next') {
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180 | print OUT ($t,
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181 | "my(\%INCD) = map { \$INC{\$_} => 1 } ",
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182 | "(grep { \$_ eq \"$incl\" } ",
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183 | "keys(\%INC));\n");
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184 | print OUT ($t,
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185 | "\@REM = map { \"\$_/$incl\" } ",
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186 | "(grep { not exists(\$INCD{\"\$_/$incl\"})",
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187 | " and -f \"\$_/$incl\" } \@INC);\n");
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188 | } else {
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189 | print OUT ($t,
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190 | "\@REM = map { \"\$_/$incl\" } ",
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191 | "(grep {-r \"\$_/$incl\" } \@INC);\n");
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192 | }
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193 | print OUT ($t,
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194 | "require \"\$REM[0]\" if \@REM;\n");
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195 | $tab -= 4;
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196 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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197 | print OUT ($t,
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198 | "};\n");
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199 | print OUT ($t,
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200 | "warn(\$\@) if \$\@;\n");
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201 | } else {
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202 | $incl =~ s/\.h$/.ph/;
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203 | print OUT $t,"require '$incl';\n";
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204 | }
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205 | } elsif (/^ifdef\s+(\w+)/) {
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206 | print OUT $t,"if(defined(&$1)) {\n";
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207 | $tab += 4;
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208 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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209 | } elsif (/^ifndef\s+(\w+)/) {
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210 | print OUT $t,"unless(defined(&$1)) {\n";
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211 | $tab += 4;
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212 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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213 | } elsif (s/^if\s+//) {
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214 | $new = '';
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215 | $inif = 1;
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216 | expr();
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217 | $inif = 0;
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218 | print OUT $t,"if($new) {\n";
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219 | $tab += 4;
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220 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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221 | } elsif (s/^elif\s+//) {
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222 | $new = '';
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223 | $inif = 1;
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224 | expr();
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225 | $inif = 0;
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226 | $tab -= 4;
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227 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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228 | print OUT $t,"}\n elsif($new) {\n";
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229 | $tab += 4;
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230 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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231 | } elsif (/^else/) {
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232 | $tab -= 4;
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233 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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234 | print OUT $t,"} else {\n";
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235 | $tab += 4;
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236 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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237 | } elsif (/^endif/) {
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238 | $tab -= 4;
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239 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8);
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240 | print OUT $t,"}\n";
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241 | } elsif(/^undef\s+(\w+)/) {
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242 | print OUT $t, "undef(&$1) if defined(&$1);\n";
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243 | } elsif(/^error\s+(".*")/) {
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244 | print OUT $t, "die($1);\n";
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245 | } elsif(/^error\s+(.*)/) {
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246 | print OUT $t, "die(\"", quotemeta($1), "\");\n";
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247 | } elsif(/^warning\s+(.*)/) {
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248 | print OUT $t, "warn(\"", quotemeta($1), "\");\n";
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249 | } elsif(/^ident\s+(.*)/) {
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250 | print OUT $t, "# $1\n";
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251 | }
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252 | } elsif (/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { # { for vi
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253 | until(/\{[^}]*\}.*;/ || /;/) {
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254 | last unless defined ($next = next_line($file));
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255 | chomp $next;
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256 | # drop "#define FOO FOO" in enums
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257 | $next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//;
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258 | # #defines in enums (aliases)
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259 | $next =~ s/^\s*#\s*define\s+(\w+)\s+(\w+)\s*$/$1 = $2,/;
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260 | $_ .= $next;
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261 | print OUT "# $next\n" if $opt_D;
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262 | }
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263 | s/#\s*if.*?#\s*endif//g; # drop #ifdefs
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264 | s@/\*.*?\*/@@g;
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265 | s/\s+/ /g;
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266 | next unless /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/;
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267 | (my $enum_subs = $3) =~ s/\s//g;
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268 | my @enum_subs = split(/,/, $enum_subs);
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269 | my $enum_val = -1;
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270 | foreach my $enum (@enum_subs) {
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271 | my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/;
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272 | $enum_name or next;
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273 | $enum_value =~ s/^=//;
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274 | $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1);
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275 | if ($opt_h) {
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276 | print OUT ($t,
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277 | "eval(\"\\n#line $eval_index $outfile\\n",
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278 | "sub $enum_name () \{ $enum_val; \}\") ",
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279 | "unless defined(\&$enum_name);\n");
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280 | ++ $eval_index;
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281 | } else {
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282 | print OUT ($t,
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283 | "eval(\"sub $enum_name () \{ $enum_val; \}\") ",
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284 | "unless defined(\&$enum_name);\n");
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285 | }
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286 | }
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287 | } elsif (/^(?:__extension__\s+)?(?:extern|static)\s+(?:__)?inline(?:__)?\s+/
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288 | and !/;\s*$/ and !/{\s*}\s*$/)
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289 | { # { for vi
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290 | # This is a hack to parse the inline functions in the glibc headers.
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291 | # Warning: massive kludge ahead. We suppose inline functions
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292 | # are mainly constructed like macros.
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293 | while (1) {
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294 | last unless defined ($next = next_line($file));
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295 | chomp $next;
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296 | undef $_, last if $next =~ /__THROW\s*;/
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297 | or $next =~ /^(__extension__|extern|static)\b/;
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298 | $_ .= " $next";
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299 | print OUT "# $next\n" if $opt_D;
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300 | last if $next =~ /^}|^{.*}\s*$/;
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301 | }
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302 | next if not defined; # because it's only a prototype
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303 | s/\b(__extension__|extern|static|(?:__)?inline(?:__)?)\b//g;
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304 | # violently drop #ifdefs
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305 | s/#\s*if.*?#\s*endif//g
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306 | and print OUT "# some #ifdef were dropped here -- fill in the blanks\n";
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307 | if (s/^(?:\w|\s|\*)*\s(\w+)\s*//) {
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308 | $name = $1;
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309 | } else {
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310 | warn "name not found"; next; # shouldn't occur...
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311 | }
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312 | my @args;
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313 | if (s/^\(([^()]*)\)\s*(\w+\s*)*//) {
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314 | for my $arg (split /,/, $1) {
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315 | if ($arg =~ /(\w+)\s*$/) {
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316 | $curargs{$1} = 1;
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317 | push @args, $1;
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318 | }
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319 | }
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320 | }
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321 | $args = (
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322 | @args
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323 | ? "my(" . (join ',', map "\$$_", @args) . ") = \@_;\n$t "
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324 | : ""
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325 | );
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326 | my $proto = @args ? '' : '() ';
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327 | $new = '';
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328 | s/\breturn\b//g; # "return" doesn't occur in macros usually...
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329 | expr();
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330 | # try to find and perlify local C variables
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331 | our @local_variables = (); # needs to be a our(): (?{...}) bug workaround
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332 | {
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333 | use re "eval";
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334 | my $typelist = join '|', keys %isatype;
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335 | $new =~ s['
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336 | (?:(?:__)?const(?:__)?\s+)?
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337 | (?:(?:un)?signed\s+)?
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338 | (?:long\s+)?
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339 | (?:$typelist)\s+
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340 | (\w+)
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341 | (?{ push @local_variables, $1 })
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342 | ']
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343 | [my \$$1]gx;
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344 | $new =~ s['
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345 | (?:(?:__)?const(?:__)?\s+)?
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346 | (?:(?:un)?signed\s+)?
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347 | (?:long\s+)?
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348 | (?:$typelist)\s+
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349 | ' \s+ &(\w+) \s* ;
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350 | (?{ push @local_variables, $1 })
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351 | ]
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352 | [my \$$1;]gx;
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353 | }
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354 | $new =~ s/&$_\b/\$$_/g for @local_variables;
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355 | $new =~ s/(["\\])/\\$1/g; #"]);
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356 | # now that's almost like a macro (we hope)
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357 | goto EMIT;
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358 | }
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359 | }
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360 | $Is_converted{$file} = 1;
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361 | if ($opt_e && exists($bad_file{$file})) {
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362 | unlink($Dest_dir . '/' . $outfile);
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363 | $next = '';
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364 | } else {
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365 | print OUT "1;\n";
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366 | queue_includes_from($file) if $opt_a;
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367 | }
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368 | }
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369 |
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370 | if ($opt_e && (scalar(keys %bad_file) > 0)) {
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371 | warn "Was unable to convert the following files:\n";
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372 | warn "\t" . join("\n\t",sort(keys %bad_file)) . "\n";
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373 | }
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374 |
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375 | exit $Exit;
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376 |
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377 | sub expr {
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378 | $new = '"(assembly code)"' and return if /\b__asm__\b/; # freak out.
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379 | my $joined_args;
|
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380 | if(keys(%curargs)) {
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381 | $joined_args = join('|', keys(%curargs));
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382 | }
|
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383 | while ($_ ne '') {
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384 | s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator
|
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385 | s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of
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386 | s/^(\s+)// && do {$new .= ' '; next;};
|
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387 | s/^0X([0-9A-F]+)[UL]*//i
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388 | && do {my $hex = $1;
|
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389 | $hex =~ s/^0+//;
|
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390 | if (length $hex > 8 && !$Config{use64bitint}) {
|
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391 | # Croak if nv_preserves_uv_bits < 64 ?
|
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392 | $new .= hex(substr($hex, -8)) +
|
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393 | 2**32 * hex(substr($hex, 0, -8));
|
---|
394 | # The above will produce "errorneus" code
|
---|
395 | # if the hex constant was e.g. inside UINT64_C
|
---|
396 | # macro, but then again, h2ph is an approximation.
|
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397 | } else {
|
---|
398 | $new .= lc("0x$hex");
|
---|
399 | }
|
---|
400 | next;};
|
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401 | s/^(-?\d+\.\d+E[-+]?\d+)[FL]?//i && do {$new .= $1; next;};
|
---|
402 | s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;};
|
---|
403 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;};
|
---|
404 | s/^'((\\"|[^"])*)'// && do {
|
---|
405 | if ($curargs{$1}) {
|
---|
406 | $new .= "ord('\$$1')";
|
---|
407 | } else {
|
---|
408 | $new .= "ord('$1')";
|
---|
409 | }
|
---|
410 | next;
|
---|
411 | };
|
---|
412 | # replace "sizeof(foo)" with "{foo}"
|
---|
413 | # also, remove * (C dereference operator) to avoid perl syntax
|
---|
414 | # problems. Where the %sizeof array comes from is anyone's
|
---|
415 | # guess (c2ph?), but this at least avoids fatal syntax errors.
|
---|
416 | # Behavior is undefined if sizeof() delimiters are unbalanced.
|
---|
417 | # This code was modified to able to handle constructs like this:
|
---|
418 | # sizeof(*(p)), which appear in the HP-UX 10.01 header files.
|
---|
419 | s/^sizeof\s*\(// && do {
|
---|
420 | $new .= '$sizeof';
|
---|
421 | my $lvl = 1; # already saw one open paren
|
---|
422 | # tack { on the front, and skip it in the loop
|
---|
423 | $_ = "{" . "$_";
|
---|
424 | my $index = 1;
|
---|
425 | # find balanced closing paren
|
---|
426 | while ($index <= length($_) && $lvl > 0) {
|
---|
427 | $lvl++ if substr($_, $index, 1) eq "(";
|
---|
428 | $lvl-- if substr($_, $index, 1) eq ")";
|
---|
429 | $index++;
|
---|
430 | }
|
---|
431 | # tack } on the end, replacing )
|
---|
432 | substr($_, $index - 1, 1) = "}";
|
---|
433 | # remove pesky * operators within the sizeof argument
|
---|
434 | substr($_, 0, $index - 1) =~ s/\*//g;
|
---|
435 | next;
|
---|
436 | };
|
---|
437 | # Eliminate typedefs
|
---|
438 | /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do {
|
---|
439 | my $doit = 1;
|
---|
440 | foreach (split /\s+/, $1) { # Make sure all the words are types,
|
---|
441 | unless($isatype{$_} or $_ eq 'struct' or $_ eq 'union'){
|
---|
442 | $doit = 0;
|
---|
443 | last;
|
---|
444 | }
|
---|
445 | }
|
---|
446 | if( $doit ){
|
---|
447 | s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them.
|
---|
448 | }
|
---|
449 | };
|
---|
450 | # struct/union member, including arrays:
|
---|
451 | s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do {
|
---|
452 | my $id = $1;
|
---|
453 | $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g;
|
---|
454 | $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args);
|
---|
455 | while($id =~ /\[\s*([^\$\&\d\]]+)\]/) {
|
---|
456 | my($index) = $1;
|
---|
457 | $index =~ s/\s//g;
|
---|
458 | if(exists($curargs{$index})) {
|
---|
459 | $index = "\$$index";
|
---|
460 | } else {
|
---|
461 | $index = "&$index";
|
---|
462 | }
|
---|
463 | $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/;
|
---|
464 | }
|
---|
465 | $new .= " (\$$id)";
|
---|
466 | };
|
---|
467 | s/^([_a-zA-Z]\w*)// && do {
|
---|
468 | my $id = $1;
|
---|
469 | if ($id eq 'struct' || $id eq 'union') {
|
---|
470 | s/^\s+(\w+)//;
|
---|
471 | $id .= ' ' . $1;
|
---|
472 | $isatype{$id} = 1;
|
---|
473 | } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) {
|
---|
474 | while (s/^\s+(\w+)//) { $id .= ' ' . $1; }
|
---|
475 | $isatype{$id} = 1;
|
---|
476 | }
|
---|
477 | if ($curargs{$id}) {
|
---|
478 | $new .= "\$$id";
|
---|
479 | $new .= '->' if /^[\[\{]/;
|
---|
480 | } elsif ($id eq 'defined') {
|
---|
481 | $new .= 'defined';
|
---|
482 | } elsif (/^\s*\(/) {
|
---|
483 | s/^\s*\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat
|
---|
484 | $new .= " &$id";
|
---|
485 | } elsif ($isatype{$id}) {
|
---|
486 | if ($new =~ /{\s*$/) {
|
---|
487 | $new .= "'$id'";
|
---|
488 | } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) {
|
---|
489 | $new =~ s/\(\s*$//;
|
---|
490 | s/^[\s*]*\)//;
|
---|
491 | } else {
|
---|
492 | $new .= q(').$id.q(');
|
---|
493 | }
|
---|
494 | } else {
|
---|
495 | if ($inif && $new !~ /defined\s*\($/) {
|
---|
496 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : 0)';
|
---|
497 | } elsif (/^\[/) {
|
---|
498 | $new .= " \$$id";
|
---|
499 | } else {
|
---|
500 | $new .= ' &' . $id;
|
---|
501 | }
|
---|
502 | }
|
---|
503 | next;
|
---|
504 | };
|
---|
505 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;};
|
---|
506 | }
|
---|
507 | }
|
---|
508 |
|
---|
509 |
|
---|
510 | sub next_line
|
---|
511 | {
|
---|
512 | my $file = shift;
|
---|
513 | my ($in, $out);
|
---|
514 | my $pre_sub_tri_graphs = 1;
|
---|
515 |
|
---|
516 | READ: while (not eof IN) {
|
---|
517 | $in .= <IN>;
|
---|
518 | chomp $in;
|
---|
519 | next unless length $in;
|
---|
520 |
|
---|
521 | while (length $in) {
|
---|
522 | if ($pre_sub_tri_graphs) {
|
---|
523 | # Preprocess all tri-graphs
|
---|
524 | # including things stuck in quoted string constants.
|
---|
525 | $in =~ s/\?\?=/#/g; # | ??=| #|
|
---|
526 | $in =~ s/\?\?\!/|/g; # | ??!| ||
|
---|
527 | $in =~ s/\?\?'/^/g; # | ??'| ^|
|
---|
528 | $in =~ s/\?\?\(/[/g; # | ??(| [|
|
---|
529 | $in =~ s/\?\?\)/]/g; # | ??)| ]|
|
---|
530 | $in =~ s/\?\?\-/~/g; # | ??-| ~|
|
---|
531 | $in =~ s/\?\?\//\\/g; # | ??/| \|
|
---|
532 | $in =~ s/\?\?</{/g; # | ??<| {|
|
---|
533 | $in =~ s/\?\?>/}/g; # | ??>| }|
|
---|
534 | }
|
---|
535 | if ($in =~ /^\#ifdef __LANGUAGE_PASCAL__/) {
|
---|
536 | # Tru64 disassembler.h evilness: mixed C and Pascal.
|
---|
537 | while (<IN>) {
|
---|
538 | last if /^\#endif/;
|
---|
539 | }
|
---|
540 | $in = "";
|
---|
541 | next READ;
|
---|
542 | }
|
---|
543 | if ($in =~ /^extern inline / && # Inlined assembler.
|
---|
544 | $^O eq 'linux' && $file =~ m!(?:^|/)asm/[^/]+\.h$!) {
|
---|
545 | while (<IN>) {
|
---|
546 | last if /^}/;
|
---|
547 | }
|
---|
548 | $in = "";
|
---|
549 | next READ;
|
---|
550 | }
|
---|
551 | if ($in =~ s/\\$//) { # \-newline
|
---|
552 | $out .= ' ';
|
---|
553 | next READ;
|
---|
554 | } elsif ($in =~ s/^([^"'\\\/]+)//) { # Passthrough
|
---|
555 | $out .= $1;
|
---|
556 | } elsif ($in =~ s/^(\\.)//) { # \...
|
---|
557 | $out .= $1;
|
---|
558 | } elsif ($in =~ /^'/) { # '...
|
---|
559 | if ($in =~ s/^('(\\.|[^'\\])*')//) {
|
---|
560 | $out .= $1;
|
---|
561 | } else {
|
---|
562 | next READ;
|
---|
563 | }
|
---|
564 | } elsif ($in =~ /^"/) { # "...
|
---|
565 | if ($in =~ s/^("(\\.|[^"\\])*")//) {
|
---|
566 | $out .= $1;
|
---|
567 | } else {
|
---|
568 | next READ;
|
---|
569 | }
|
---|
570 | } elsif ($in =~ s/^\/\/.*//) { # //...
|
---|
571 | # fall through
|
---|
572 | } elsif ($in =~ m/^\/\*/) { # /*...
|
---|
573 | # C comment removal adapted from perlfaq6:
|
---|
574 | if ($in =~ s/^\/\*[^*]*\*+([^\/*][^*]*\*+)*\///) {
|
---|
575 | $out .= ' ';
|
---|
576 | } else { # Incomplete /* */
|
---|
577 | next READ;
|
---|
578 | }
|
---|
579 | } elsif ($in =~ s/^(\/)//) { # /...
|
---|
580 | $out .= $1;
|
---|
581 | } elsif ($in =~ s/^([^\'\"\\\/]+)//) {
|
---|
582 | $out .= $1;
|
---|
583 | } elsif ($^O eq 'linux' &&
|
---|
584 | $file =~ m!(?:^|/)linux/byteorder/pdp_endian\.h$! &&
|
---|
585 | $in =~ s!\'T KNOW!!) {
|
---|
586 | $out =~ s!I DON$!I_DO_NOT_KNOW!;
|
---|
587 | } else {
|
---|
588 | if ($opt_e) {
|
---|
589 | warn "Cannot parse $file:\n$in\n";
|
---|
590 | $bad_file{$file} = 1;
|
---|
591 | $in = '';
|
---|
592 | $out = undef;
|
---|
593 | last READ;
|
---|
594 | } else {
|
---|
595 | die "Cannot parse:\n$in\n";
|
---|
596 | }
|
---|
597 | }
|
---|
598 | }
|
---|
599 |
|
---|
600 | last READ if $out =~ /\S/;
|
---|
601 | }
|
---|
602 |
|
---|
603 | return $out;
|
---|
604 | }
|
---|
605 |
|
---|
606 |
|
---|
607 | # Handle recursive subdirectories without getting a grotesquely big stack.
|
---|
608 | # Could this be implemented using File::Find?
|
---|
609 | sub next_file
|
---|
610 | {
|
---|
611 | my $file;
|
---|
612 |
|
---|
613 | while (@ARGV) {
|
---|
614 | $file = shift @ARGV;
|
---|
615 |
|
---|
616 | if ($file eq '-' or -f $file or -l $file) {
|
---|
617 | return $file;
|
---|
618 | } elsif (-d $file) {
|
---|
619 | if ($opt_r) {
|
---|
620 | expand_glob($file);
|
---|
621 | } else {
|
---|
622 | print STDERR "Skipping directory `$file'\n";
|
---|
623 | }
|
---|
624 | } elsif ($opt_a) {
|
---|
625 | return $file;
|
---|
626 | } else {
|
---|
627 | print STDERR "Skipping `$file': not a file or directory\n";
|
---|
628 | }
|
---|
629 | }
|
---|
630 |
|
---|
631 | return undef;
|
---|
632 | }
|
---|
633 |
|
---|
634 |
|
---|
635 | # Put all the files in $directory into @ARGV for processing.
|
---|
636 | sub expand_glob
|
---|
637 | {
|
---|
638 | my ($directory) = @_;
|
---|
639 |
|
---|
640 | $directory =~ s:/$::;
|
---|
641 |
|
---|
642 | opendir DIR, $directory;
|
---|
643 | foreach (readdir DIR) {
|
---|
644 | next if ($_ eq '.' or $_ eq '..');
|
---|
645 |
|
---|
646 | # expand_glob() is going to be called until $ARGV[0] isn't a
|
---|
647 | # directory; so push directories, and unshift everything else.
|
---|
648 | if (-d "$directory/$_") { push @ARGV, "$directory/$_" }
|
---|
649 | else { unshift @ARGV, "$directory/$_" }
|
---|
650 | }
|
---|
651 | closedir DIR;
|
---|
652 | }
|
---|
653 |
|
---|
654 |
|
---|
655 | # Given $file, a symbolic link to a directory in the C include directory,
|
---|
656 | # make an equivalent symbolic link in $Dest_dir, if we can figure out how.
|
---|
657 | # Otherwise, just duplicate the file or directory.
|
---|
658 | sub link_if_possible
|
---|
659 | {
|
---|
660 | my ($dirlink) = @_;
|
---|
661 | my $target = eval 'readlink($dirlink)';
|
---|
662 |
|
---|
663 | if ($target =~ m:^\.\./: or $target =~ m:^/:) {
|
---|
664 | # The target of a parent or absolute link could leave the $Dest_dir
|
---|
665 | # hierarchy, so let's put all of the contents of $dirlink (actually,
|
---|
666 | # the contents of $target) into @ARGV; as a side effect down the
|
---|
667 | # line, $dirlink will get created as an _actual_ directory.
|
---|
668 | expand_glob($dirlink);
|
---|
669 | } else {
|
---|
670 | if (-l "$Dest_dir/$dirlink") {
|
---|
671 | unlink "$Dest_dir/$dirlink" or
|
---|
672 | print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n";
|
---|
673 | }
|
---|
674 |
|
---|
675 | if (eval 'symlink($target, "$Dest_dir/$dirlink")') {
|
---|
676 | print "Linking $target -> $Dest_dir/$dirlink\n";
|
---|
677 |
|
---|
678 | # Make sure that the link _links_ to something:
|
---|
679 | if (! -e "$Dest_dir/$target") {
|
---|
680 | mkpath("$Dest_dir/$target", 0755) or
|
---|
681 | print STDERR "Could not create $Dest_dir/$target/\n";
|
---|
682 | }
|
---|
683 | } else {
|
---|
684 | print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n";
|
---|
685 | }
|
---|
686 | }
|
---|
687 | }
|
---|
688 |
|
---|
689 |
|
---|
690 | # Push all #included files in $file onto our stack, except for STDIN
|
---|
691 | # and files we've already processed.
|
---|
692 | sub queue_includes_from
|
---|
693 | {
|
---|
694 | my ($file) = @_;
|
---|
695 | my $line;
|
---|
696 |
|
---|
697 | return if ($file eq "-");
|
---|
698 |
|
---|
699 | open HEADER, $file or return;
|
---|
700 | while (defined($line = <HEADER>)) {
|
---|
701 | while (/\\$/) { # Handle continuation lines
|
---|
702 | chop $line;
|
---|
703 | $line .= <HEADER>;
|
---|
704 | }
|
---|
705 |
|
---|
706 | if ($line =~ /^#\s*include\s+<(.*?)>/) {
|
---|
707 | push(@ARGV, $1) unless $Is_converted{$1};
|
---|
708 | }
|
---|
709 | }
|
---|
710 | close HEADER;
|
---|
711 | }
|
---|
712 |
|
---|
713 |
|
---|
714 | # Determine include directories; $Config{usrinc} should be enough for (all
|
---|
715 | # non-GCC?) C compilers, but gcc uses an additional include directory.
|
---|
716 | sub inc_dirs
|
---|
717 | {
|
---|
718 | my $from_gcc = `LC_ALL=C $Config{cc} -v 2>&1`;
|
---|
719 | if( !( $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s ) )
|
---|
720 | { # gcc-4+ :
|
---|
721 | $from_gcc = `LC_ALL=C $Config{cc} -print-search-dirs 2>&1`;
|
---|
722 | if ( !($from_gcc =~ s/^install:\s*([^\s]+[^\s\/])([\s\/]*).*$/$1\/include/s) )
|
---|
723 | {
|
---|
724 | $from_gcc = '';
|
---|
725 | };
|
---|
726 | };
|
---|
727 | length($from_gcc) ? ($from_gcc, $Config{usrinc}) : ($Config{usrinc});
|
---|
728 | }
|
---|
729 |
|
---|
730 |
|
---|
731 | # Create "_h2ph_pre.ph", if it doesn't exist or was built by a different
|
---|
732 | # version of h2ph.
|
---|
733 | sub build_preamble_if_necessary
|
---|
734 | {
|
---|
735 | # Increment $VERSION every time this function is modified:
|
---|
736 | my $VERSION = 2;
|
---|
737 | my $preamble = "$Dest_dir/_h2ph_pre.ph";
|
---|
738 |
|
---|
739 | # Can we skip building the preamble file?
|
---|
740 | if (-r $preamble) {
|
---|
741 | # Extract version number from first line of preamble:
|
---|
742 | open PREAMBLE, $preamble or die "Cannot open $preamble: $!";
|
---|
743 | my $line = <PREAMBLE>;
|
---|
744 | $line =~ /(\b\d+\b)/;
|
---|
745 | close PREAMBLE or die "Cannot close $preamble: $!";
|
---|
746 |
|
---|
747 | # Don't build preamble if a compatible preamble exists:
|
---|
748 | return if $1 == $VERSION;
|
---|
749 | }
|
---|
750 |
|
---|
751 | my (%define) = _extract_cc_defines();
|
---|
752 |
|
---|
753 | open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!";
|
---|
754 | print PREAMBLE "# This file was created by h2ph version $VERSION\n";
|
---|
755 |
|
---|
756 | foreach (sort keys %define) {
|
---|
757 | if ($opt_D) {
|
---|
758 | print PREAMBLE "# $_=$define{$_}\n";
|
---|
759 | }
|
---|
760 |
|
---|
761 | if ($define{$_} =~ /^(\d+)U?L{0,2}$/i) {
|
---|
762 | print PREAMBLE
|
---|
763 | "unless (defined &$_) { sub $_() { $1 } }\n\n";
|
---|
764 | } elsif ($define{$_} =~ /^\w+$/) {
|
---|
765 | print PREAMBLE
|
---|
766 | "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n";
|
---|
767 | } else {
|
---|
768 | print PREAMBLE
|
---|
769 | "unless (defined &$_) { sub $_() { \"",
|
---|
770 | quotemeta($define{$_}), "\" } }\n\n";
|
---|
771 | }
|
---|
772 | }
|
---|
773 | close PREAMBLE or die "Cannot close $preamble: $!";
|
---|
774 | }
|
---|
775 |
|
---|
776 |
|
---|
777 | # %Config contains information on macros that are pre-defined by the
|
---|
778 | # system's compiler. We need this information to make the .ph files
|
---|
779 | # function with perl as the .h files do with cc.
|
---|
780 | sub _extract_cc_defines
|
---|
781 | {
|
---|
782 | my %define;
|
---|
783 | my $allsymbols = join " ",
|
---|
784 | @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'};
|
---|
785 |
|
---|
786 | # Split compiler pre-definitions into `key=value' pairs:
|
---|
787 | foreach (split /\s+/, $allsymbols) {
|
---|
788 | /(.+?)=(.+)/ and $define{$1} = $2;
|
---|
789 |
|
---|
790 | if ($opt_D) {
|
---|
791 | print STDERR "$_: $1 -> $2\n";
|
---|
792 | }
|
---|
793 | }
|
---|
794 |
|
---|
795 | return %define;
|
---|
796 | }
|
---|
797 |
|
---|
798 |
|
---|
799 | 1;
|
---|
800 |
|
---|
801 | ##############################################################################
|
---|
802 | __END__
|
---|
803 |
|
---|
804 | =head1 NAME
|
---|
805 |
|
---|
806 | h2ph - convert .h C header files to .ph Perl header files
|
---|
807 |
|
---|
808 | =head1 SYNOPSIS
|
---|
809 |
|
---|
810 | B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]>
|
---|
811 |
|
---|
812 | =head1 DESCRIPTION
|
---|
813 |
|
---|
814 | I<h2ph>
|
---|
815 | converts any C header files specified to the corresponding Perl header file
|
---|
816 | format.
|
---|
817 | It is most easily run while in /usr/include:
|
---|
818 |
|
---|
819 | cd /usr/include; h2ph * sys/*
|
---|
820 |
|
---|
821 | or
|
---|
822 |
|
---|
823 | cd /usr/include; h2ph * sys/* arpa/* netinet/*
|
---|
824 |
|
---|
825 | or
|
---|
826 |
|
---|
827 | cd /usr/include; h2ph -r -l .
|
---|
828 |
|
---|
829 | The output files are placed in the hierarchy rooted at Perl's
|
---|
830 | architecture dependent library directory. You can specify a different
|
---|
831 | hierarchy with a B<-d> switch.
|
---|
832 |
|
---|
833 | If run with no arguments, filters standard input to standard output.
|
---|
834 |
|
---|
835 | =head1 OPTIONS
|
---|
836 |
|
---|
837 | =over 4
|
---|
838 |
|
---|
839 | =item -d destination_dir
|
---|
840 |
|
---|
841 | Put the resulting B<.ph> files beneath B<destination_dir>, instead of
|
---|
842 | beneath the default Perl library location (C<$Config{'installsitsearch'}>).
|
---|
843 |
|
---|
844 | =item -r
|
---|
845 |
|
---|
846 | Run recursively; if any of B<headerfiles> are directories, then run I<h2ph>
|
---|
847 | on all files in those directories (and their subdirectories, etc.). B<-r>
|
---|
848 | and B<-a> are mutually exclusive.
|
---|
849 |
|
---|
850 | =item -a
|
---|
851 |
|
---|
852 | Run automagically; convert B<headerfiles>, as well as any B<.h> files
|
---|
853 | which they include. This option will search for B<.h> files in all
|
---|
854 | directories which your C compiler ordinarily uses. B<-a> and B<-r> are
|
---|
855 | mutually exclusive.
|
---|
856 |
|
---|
857 | =item -l
|
---|
858 |
|
---|
859 | Symbolic links will be replicated in the destination directory. If B<-l>
|
---|
860 | is not specified, then links are skipped over.
|
---|
861 |
|
---|
862 | =item -h
|
---|
863 |
|
---|
864 | Put ``hints'' in the .ph files which will help in locating problems with
|
---|
865 | I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax
|
---|
866 | errors, instead of the cryptic
|
---|
867 |
|
---|
868 | [ some error condition ] at (eval mmm) line nnn
|
---|
869 |
|
---|
870 | you will see the slightly more helpful
|
---|
871 |
|
---|
872 | [ some error condition ] at filename.ph line nnn
|
---|
873 |
|
---|
874 | However, the B<.ph> files almost double in size when built using B<-h>.
|
---|
875 |
|
---|
876 | =item -D
|
---|
877 |
|
---|
878 | Include the code from the B<.h> file as a comment in the B<.ph> file.
|
---|
879 | This is primarily used for debugging I<h2ph>.
|
---|
880 |
|
---|
881 | =item -Q
|
---|
882 |
|
---|
883 | ``Quiet'' mode; don't print out the names of the files being converted.
|
---|
884 |
|
---|
885 | =back
|
---|
886 |
|
---|
887 | =head1 ENVIRONMENT
|
---|
888 |
|
---|
889 | No environment variables are used.
|
---|
890 |
|
---|
891 | =head1 FILES
|
---|
892 |
|
---|
893 | /usr/include/*.h
|
---|
894 | /usr/include/sys/*.h
|
---|
895 |
|
---|
896 | etc.
|
---|
897 |
|
---|
898 | =head1 AUTHOR
|
---|
899 |
|
---|
900 | Larry Wall
|
---|
901 |
|
---|
902 | =head1 SEE ALSO
|
---|
903 |
|
---|
904 | perl(1)
|
---|
905 |
|
---|
906 | =head1 DIAGNOSTICS
|
---|
907 |
|
---|
908 | The usual warnings if it can't read or write the files involved.
|
---|
909 |
|
---|
910 | =head1 BUGS
|
---|
911 |
|
---|
912 | Doesn't construct the %sizeof array for you.
|
---|
913 |
|
---|
914 | It doesn't handle all C constructs, but it does attempt to isolate
|
---|
915 | definitions inside evals so that you can get at the definitions
|
---|
916 | that it can translate.
|
---|
917 |
|
---|
918 | It's only intended as a rough tool.
|
---|
919 | You may need to dicker with the files produced.
|
---|
920 |
|
---|
921 | You have to run this program by hand; it's not run as part of the Perl
|
---|
922 | installation.
|
---|
923 |
|
---|
924 | Doesn't handle complicated expressions built piecemeal, a la:
|
---|
925 |
|
---|
926 | enum {
|
---|
927 | FIRST_VALUE,
|
---|
928 | SECOND_VALUE,
|
---|
929 | #ifdef ABC
|
---|
930 | THIRD_VALUE
|
---|
931 | #endif
|
---|
932 | };
|
---|
933 |
|
---|
934 | Doesn't necessarily locate all of your C compiler's internally-defined
|
---|
935 | symbols.
|
---|
936 |
|
---|
937 | =cut
|
---|
938 |
|
---|
939 |
|
---|
940 | __END__
|
---|
941 | :endofperl
|
---|