Commit | Line | Data |
---|---|---|
4633a7c4 LW |
1 | #!/usr/local/bin/perl |
2 | ||
3 | use Config; | |
ee580363 | 4 | use File::Basename qw(basename dirname); |
8a5546a1 | 5 | use Cwd; |
4633a7c4 LW |
6 | |
7 | # List explicitly here the variables you want Configure to | |
8 | # generate. Metaconfig only looks for shell variables, so you | |
9 | # have to mention them as if they were shell variables, not | |
10 | # %Config entries. Thus you write | |
11 | # $startperl | |
12 | # to ensure Configure will look for $Config{startperl}. | |
13 | # Wanted: $archlibexp | |
14 | ||
15 | # This forces PL files to create target in same directory as PL file. | |
16 | # This is so that make depend always knows where to find PL derivatives. | |
8a5546a1 | 17 | $origdir = cwd; |
44a8e56a | 18 | chdir dirname($0); |
19 | $file = basename($0, '.PL'); | |
774d564b | 20 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 LW |
21 | |
22 | open OUT,">$file" or die "Can't create $file: $!"; | |
23 | ||
24 | print "Extracting $file (with variable substitutions)\n"; | |
25 | ||
26 | # In this section, perl variables will be expanded during extraction. | |
27 | # You can use $Config{...} to use Configure variables. | |
28 | ||
29 | print OUT <<"!GROK!THIS!"; | |
5f05dabc | 30 | $Config{startperl} |
31 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
32 | if \$running_under_some_shell; | |
154e51a4 LW |
33 | !GROK!THIS! |
34 | ||
4633a7c4 LW |
35 | # In the following, perl variables are not expanded during extraction. |
36 | ||
37 | print OUT <<'!NO!SUBS!'; | |
154e51a4 | 38 | |
fc865b05 JH |
39 | use strict; |
40 | ||
2c2acf7e | 41 | use Config; |
b306bf39 | 42 | use File::Path qw(mkpath); |
50f6e060 KS |
43 | use Getopt::Std; |
44 | ||
80d6dabb SR |
45 | # Make sure read permissions for all are set: |
46 | if (defined umask && (umask() & 0444)) { | |
47 | umask (umask() & ~0444); | |
48 | } | |
49 | ||
917244ce AS |
50 | getopts('Dd:rlhaQe'); |
51 | use vars qw($opt_D $opt_d $opt_r $opt_l $opt_h $opt_a $opt_Q $opt_e); | |
1d3434b8 | 52 | die "-r and -a options are mutually exclusive\n" if ($opt_r and $opt_a); |
fc865b05 | 53 | my @inc_dirs = inc_dirs() if $opt_a; |
2c2acf7e | 54 | |
b306bf39 RS |
55 | my $Exit = 0; |
56 | ||
50f6e060 | 57 | my $Dest_dir = $opt_d || $Config{installsitearch}; |
b306bf39 RS |
58 | die "Destination directory $Dest_dir doesn't exist or isn't a directory\n" |
59 | unless -d $Dest_dir; | |
154e51a4 | 60 | |
e77cf69f | 61 | my @isatype = qw( |
fe14fcc3 LW |
62 | char uchar u_char |
63 | short ushort u_short | |
64 | int uint u_int | |
65 | long ulong u_long | |
fb73857a | 66 | FILE key_t caddr_t |
e77cf69f RGS |
67 | float double size_t |
68 | ); | |
fe14fcc3 | 69 | |
fc865b05 | 70 | my %isatype; |
55204971 | 71 | @isatype{@isatype} = (1) x @isatype; |
fc865b05 JH |
72 | my $inif = 0; |
73 | my %Is_converted; | |
917244ce | 74 | my %bad_file = (); |
fe14fcc3 LW |
75 | |
76 | @ARGV = ('-') unless @ARGV; | |
154e51a4 | 77 | |
7f04632d GS |
78 | build_preamble_if_necessary(); |
79 | ||
917244ce AS |
80 | sub reindent($) { |
81 | my($text) = shift; | |
82 | $text =~ s/\n/\n /g; | |
83 | $text =~ s/ /\t/g; | |
84 | $text; | |
85 | } | |
86 | ||
fc865b05 | 87 | my ($t, $tab, %curargs, $new, $eval_index, $dir, $name, $args, $outfile); |
5668511f | 88 | my ($incl, $incl_type, $incl_quote, $next); |
fc865b05 | 89 | while (defined (my $file = next_file())) { |
50f6e060 KS |
90 | if (-l $file and -d $file) { |
91 | link_if_possible($file) if ($opt_l); | |
92 | next; | |
93 | } | |
94 | ||
5f05dabc | 95 | # Recover from header files with unbalanced cpp directives |
96 | $t = ''; | |
97 | $tab = 0; | |
98 | ||
28fb188d | 99 | # $eval_index goes into '#line' directives, to help locate syntax errors: |
50f6e060 KS |
100 | $eval_index = 1; |
101 | ||
fe14fcc3 LW |
102 | if ($file eq '-') { |
103 | open(IN, "-"); | |
104 | open(OUT, ">-"); | |
ee580363 | 105 | } else { |
fe14fcc3 | 106 | ($outfile = $file) =~ s/\.h$/.ph/ || next; |
625ca0ef | 107 | print "$file -> $outfile\n" unless $opt_Q; |
fe14fcc3 LW |
108 | if ($file =~ m|^(.*)/|) { |
109 | $dir = $1; | |
b306bf39 | 110 | mkpath "$Dest_dir/$dir"; |
154e51a4 | 111 | } |
1d3434b8 GS |
112 | |
113 | if ($opt_a) { # automagic mode: locate header file in @inc_dirs | |
114 | foreach (@inc_dirs) { | |
115 | chdir $_; | |
116 | last if -f $file; | |
117 | } | |
118 | } | |
119 | ||
b306bf39 RS |
120 | open(IN,"$file") || (($Exit = 1),(warn "Can't open $file: $!\n"),next); |
121 | open(OUT,">$Dest_dir/$outfile") || die "Can't create $outfile: $!\n"; | |
154e51a4 | 122 | } |
7f04632d | 123 | |
ccfcdfed JH |
124 | print OUT |
125 | "require '_h2ph_pre.ph';\n\n", | |
c0cc52e9 | 126 | "no warnings qw(redefine misc);\n\n"; |
dccff43d JH |
127 | |
128 | while (defined (local $_ = next_line($file))) { | |
1d2dff63 | 129 | if (s/^\s*\#\s*//) { |
154e51a4 LW |
130 | if (s/^define\s+(\w+)//) { |
131 | $name = $1; | |
132 | $new = ''; | |
133 | s/\s+$//; | |
1be505aa | 134 | s/\(\w+\s*\(\*\)\s*\(\w*\)\)\s*(-?\d+)/$1/; # (int (*)(foo_t))0 |
154e51a4 LW |
135 | if (s/^\(([\w,\s]*)\)//) { |
136 | $args = $1; | |
09f42789 | 137 | my $proto = '() '; |
154e51a4 | 138 | if ($args ne '') { |
09f42789 | 139 | $proto = ''; |
fc865b05 | 140 | foreach my $arg (split(/,\s*/,$args)) { |
55204971 | 141 | $arg =~ s/^\s*([^\s].*[^\s])\s*$/$1/; |
154e51a4 LW |
142 | $curargs{$arg} = 1; |
143 | } | |
144 | $args =~ s/\b(\w)/\$$1/g; | |
d02b64de | 145 | $args = "my($args) = \@_;\n$t "; |
154e51a4 LW |
146 | } |
147 | s/^\s+//; | |
5f05dabc | 148 | expr(); |
ee580363 | 149 | $new =~ s/(["\\])/\\$1/g; #"]); |
f178b03b | 150 | EMIT($proto); |
ee580363 | 151 | } else { |
154e51a4 | 152 | s/^\s+//; |
5f05dabc | 153 | expr(); |
5a677310 | 154 | |
154e51a4 | 155 | $new = 1 if $new eq ''; |
5a677310 | 156 | |
28fb188d | 157 | # Shunt around such directives as '#define FOO FOO': |
5a677310 LM |
158 | next if $new =~ /^\s*&\Q$name\E\s*\z/; |
159 | ||
ee580363 GS |
160 | $new = reindent($new); |
161 | $args = reindent($args); | |
5a677310 | 162 | $new =~ s/(['\\])/\\$1/g; #']); |
7f04632d | 163 | |
5a677310 LM |
164 | print OUT $t, 'eval '; |
165 | if ($opt_h) { | |
166 | print OUT "\"\\n#line $eval_index $outfile\\n\" . "; | |
167 | $eval_index++; | |
154e51a4 | 168 | } |
5a677310 | 169 | print OUT "'sub $name () {$new;}' unless defined(&$name);\n"; |
154e51a4 | 170 | } |
5668511f | 171 | } elsif (/^(include|import|include_next)\s*([<\"])(.*)[>\"]/) { |
917244ce | 172 | $incl_type = $1; |
5668511f NT |
173 | $incl_quote = $2; |
174 | $incl = $3; | |
917244ce AS |
175 | if (($incl_type eq 'include_next') || |
176 | ($opt_e && exists($bad_file{$incl}))) { | |
177 | $incl =~ s/\.h$/.ph/; | |
ee580363 | 178 | print OUT ($t, |
1d2dff63 GS |
179 | "eval {\n"); |
180 | $tab += 4; | |
181 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
917244ce AS |
182 | print OUT ($t, "my(\@REM);\n"); |
183 | if ($incl_type eq 'include_next') { | |
1d2dff63 GS |
184 | print OUT ($t, |
185 | "my(\%INCD) = map { \$INC{\$_} => 1 } ", | |
917244ce AS |
186 | "(grep { \$_ eq \"$incl\" } ", |
187 | "keys(\%INC));\n"); | |
1d2dff63 | 188 | print OUT ($t, |
917244ce | 189 | "\@REM = map { \"\$_/$incl\" } ", |
1d2dff63 | 190 | "(grep { not exists(\$INCD{\"\$_/$incl\"})", |
917244ce AS |
191 | " and -f \"\$_/$incl\" } \@INC);\n"); |
192 | } else { | |
193 | print OUT ($t, | |
194 | "\@REM = map { \"\$_/$incl\" } ", | |
195 | "(grep {-r \"\$_/$incl\" } \@INC);\n"); | |
196 | } | |
1d2dff63 GS |
197 | print OUT ($t, |
198 | "require \"\$REM[0]\" if \@REM;\n"); | |
199 | $tab -= 4; | |
200 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
201 | print OUT ($t, | |
202 | "};\n"); | |
203 | print OUT ($t, | |
204 | "warn(\$\@) if \$\@;\n"); | |
917244ce AS |
205 | } else { |
206 | $incl =~ s/\.h$/.ph/; | |
5668511f NT |
207 | # copy the prefix in the quote syntax (#include "x.h") case |
208 | if ($incl !~ m|/| && $incl_quote eq q{"} && $file =~ m|^(.*)/|) { | |
209 | $incl = "$1/$incl"; | |
210 | } | |
917244ce AS |
211 | print OUT $t,"require '$incl';\n"; |
212 | } | |
ee580363 GS |
213 | } elsif (/^ifdef\s+(\w+)/) { |
214 | print OUT $t,"if(defined(&$1)) {\n"; | |
154e51a4 LW |
215 | $tab += 4; |
216 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 GS |
217 | } elsif (/^ifndef\s+(\w+)/) { |
218 | print OUT $t,"unless(defined(&$1)) {\n"; | |
219 | $tab += 4; | |
220 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
221 | } elsif (s/^if\s+//) { | |
154e51a4 | 222 | $new = ''; |
748a9306 | 223 | $inif = 1; |
5f05dabc | 224 | expr(); |
748a9306 | 225 | $inif = 0; |
ee580363 | 226 | print OUT $t,"if($new) {\n"; |
154e51a4 LW |
227 | $tab += 4; |
228 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 229 | } elsif (s/^elif\s+//) { |
154e51a4 | 230 | $new = ''; |
748a9306 | 231 | $inif = 1; |
5f05dabc | 232 | expr(); |
748a9306 | 233 | $inif = 0; |
154e51a4 LW |
234 | $tab -= 4; |
235 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 236 | print OUT $t,"}\n elsif($new) {\n"; |
154e51a4 LW |
237 | $tab += 4; |
238 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 239 | } elsif (/^else/) { |
154e51a4 LW |
240 | $tab -= 4; |
241 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 242 | print OUT $t,"} else {\n"; |
154e51a4 LW |
243 | $tab += 4; |
244 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 245 | } elsif (/^endif/) { |
154e51a4 LW |
246 | $tab -= 4; |
247 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
248 | print OUT $t,"}\n"; | |
ee580363 GS |
249 | } elsif(/^undef\s+(\w+)/) { |
250 | print OUT $t, "undef(&$1) if defined(&$1);\n"; | |
d3e00f1c KS |
251 | } elsif(/^error\s+(".*")/) { |
252 | print OUT $t, "die($1);\n"; | |
ee580363 | 253 | } elsif(/^error\s+(.*)/) { |
5d42aa7b | 254 | print OUT $t, "die(\"", quotemeta($1), "\");\n"; |
ee580363 | 255 | } elsif(/^warning\s+(.*)/) { |
5d42aa7b | 256 | print OUT $t, "warn(\"", quotemeta($1), "\");\n"; |
ee580363 GS |
257 | } elsif(/^ident\s+(.*)/) { |
258 | print OUT $t, "# $1\n"; | |
154e51a4 | 259 | } |
09f42789 | 260 | } elsif (/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { # { for vi |
e7cba2ba | 261 | until(/\{[^}]*\}.*;/ || /;/) { |
dccff43d | 262 | last unless defined ($next = next_line($file)); |
e7cba2ba JH |
263 | chomp $next; |
264 | # drop "#define FOO FOO" in enums | |
265 | $next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//; | |
9e3b9e5a OT |
266 | # #defines in enums (aliases) |
267 | $next =~ s/^\s*#\s*define\s+(\w+)\s+(\w+)\s*$/$1 = $2,/; | |
1d2dff63 GS |
268 | $_ .= $next; |
269 | print OUT "# $next\n" if $opt_D; | |
270 | } | |
e7cba2ba | 271 | s/#\s*if.*?#\s*endif//g; # drop #ifdefs |
1d2dff63 GS |
272 | s@/\*.*?\*/@@g; |
273 | s/\s+/ /g; | |
e7cba2ba | 274 | next unless /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/; |
fc865b05 JH |
275 | (my $enum_subs = $3) =~ s/\s//g; |
276 | my @enum_subs = split(/,/, $enum_subs); | |
277 | my $enum_val = -1; | |
278 | foreach my $enum (@enum_subs) { | |
279 | my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/; | |
9e3b9e5a | 280 | $enum_name or next; |
1d2dff63 GS |
281 | $enum_value =~ s/^=//; |
282 | $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1); | |
283 | if ($opt_h) { | |
284 | print OUT ($t, | |
285 | "eval(\"\\n#line $eval_index $outfile\\n", | |
286 | "sub $enum_name () \{ $enum_val; \}\") ", | |
287 | "unless defined(\&$enum_name);\n"); | |
288 | ++ $eval_index; | |
289 | } else { | |
290 | print OUT ($t, | |
291 | "eval(\"sub $enum_name () \{ $enum_val; \}\") ", | |
292 | "unless defined(\&$enum_name);\n"); | |
293 | } | |
294 | } | |
5fff27bd RGS |
295 | } elsif (/^(?:__extension__\s+)?(?:extern|static)\s+(?:__)?inline(?:__)?\s+/ |
296 | and !/;\s*$/ and !/{\s*}\s*$/) | |
297 | { # { for vi | |
09f42789 | 298 | # This is a hack to parse the inline functions in the glibc headers. |
5fff27bd RGS |
299 | # Warning: massive kludge ahead. We suppose inline functions |
300 | # are mainly constructed like macros. | |
09f42789 RGS |
301 | while (1) { |
302 | last unless defined ($next = next_line($file)); | |
303 | chomp $next; | |
5fff27bd RGS |
304 | undef $_, last if $next =~ /__THROW\s*;/ |
305 | or $next =~ /^(__extension__|extern|static)\b/; | |
09f42789 RGS |
306 | $_ .= " $next"; |
307 | print OUT "# $next\n" if $opt_D; | |
308 | last if $next =~ /^}|^{.*}\s*$/; | |
309 | } | |
310 | next if not defined; # because it's only a prototype | |
0e885527 RGS |
311 | s/\b(__extension__|extern|static|(?:__)?inline(?:__)?)\b//g; |
312 | # violently drop #ifdefs | |
313 | s/#\s*if.*?#\s*endif//g | |
314 | and print OUT "# some #ifdef were dropped here -- fill in the blanks\n"; | |
09f42789 RGS |
315 | if (s/^(?:\w|\s|\*)*\s(\w+)\s*//) { |
316 | $name = $1; | |
317 | } else { | |
318 | warn "name not found"; next; # shouldn't occur... | |
319 | } | |
320 | my @args; | |
321 | if (s/^\(([^()]*)\)\s*(\w+\s*)*//) { | |
322 | for my $arg (split /,/, $1) { | |
323 | if ($arg =~ /(\w+)\s*$/) { | |
324 | $curargs{$1} = 1; | |
325 | push @args, $1; | |
326 | } | |
327 | } | |
328 | } | |
329 | $args = ( | |
330 | @args | |
d02b64de | 331 | ? "my(" . (join ',', map "\$$_", @args) . ") = \@_;\n$t " |
09f42789 RGS |
332 | : "" |
333 | ); | |
334 | my $proto = @args ? '' : '() '; | |
335 | $new = ''; | |
336 | s/\breturn\b//g; # "return" doesn't occur in macros usually... | |
337 | expr(); | |
0e885527 RGS |
338 | # try to find and perlify local C variables |
339 | our @local_variables = (); # needs to be a our(): (?{...}) bug workaround | |
e77cf69f RGS |
340 | { |
341 | use re "eval"; | |
342 | my $typelist = join '|', keys %isatype; | |
343 | $new =~ s[' | |
90851df9 | 344 | (?:(?:__)?const(?:__)?\s+)? |
e77cf69f RGS |
345 | (?:(?:un)?signed\s+)? |
346 | (?:long\s+)? | |
347 | (?:$typelist)\s+ | |
348 | (\w+) | |
349 | (?{ push @local_variables, $1 }) | |
350 | '] | |
351 | [my \$$1]gx; | |
352 | $new =~ s[' | |
90851df9 | 353 | (?:(?:__)?const(?:__)?\s+)? |
e77cf69f RGS |
354 | (?:(?:un)?signed\s+)? |
355 | (?:long\s+)? | |
356 | (?:$typelist)\s+ | |
357 | ' \s+ &(\w+) \s* ; | |
358 | (?{ push @local_variables, $1 }) | |
359 | ] | |
360 | [my \$$1;]gx; | |
361 | } | |
0e885527 | 362 | $new =~ s/&$_\b/\$$_/g for @local_variables; |
09f42789 | 363 | $new =~ s/(["\\])/\\$1/g; #"]); |
0e885527 | 364 | # now that's almost like a macro (we hope) |
f178b03b | 365 | EMIT($proto); |
154e51a4 LW |
366 | } |
367 | } | |
fc865b05 | 368 | $Is_converted{$file} = 1; |
917244ce AS |
369 | if ($opt_e && exists($bad_file{$file})) { |
370 | unlink($Dest_dir . '/' . $outfile); | |
371 | $next = ''; | |
372 | } else { | |
373 | print OUT "1;\n"; | |
09f42789 | 374 | queue_includes_from($file) if $opt_a; |
917244ce | 375 | } |
154e51a4 LW |
376 | } |
377 | ||
917244ce AS |
378 | if ($opt_e && (scalar(keys %bad_file) > 0)) { |
379 | warn "Was unable to convert the following files:\n"; | |
380 | warn "\t" . join("\n\t",sort(keys %bad_file)) . "\n"; | |
ee580363 GS |
381 | } |
382 | ||
917244ce | 383 | exit $Exit; |
fc865b05 | 384 | |
f178b03b TR |
385 | sub EMIT { |
386 | my $proto = shift; | |
387 | ||
388 | $new = reindent($new); | |
389 | $args = reindent($args); | |
390 | if ($t ne '') { | |
391 | $new =~ s/(['\\])/\\$1/g; #']); | |
392 | if ($opt_h) { | |
393 | print OUT $t, | |
394 | "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; | |
395 | $eval_index++; | |
396 | } else { | |
397 | print OUT $t, | |
398 | "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; | |
399 | } | |
400 | } else { | |
401 | print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n"; | |
402 | } | |
403 | %curargs = (); | |
404 | return; | |
405 | } | |
406 | ||
154e51a4 | 407 | sub expr { |
8d66b3f9 RB |
408 | if (/\b__asm__\b/) { # freak out |
409 | $new = '"(assembly code)"'; | |
410 | return | |
411 | } | |
fc865b05 | 412 | my $joined_args; |
ee580363 | 413 | if(keys(%curargs)) { |
fc865b05 | 414 | $joined_args = join('|', keys(%curargs)); |
ee580363 | 415 | } |
154e51a4 | 416 | while ($_ ne '') { |
ee580363 GS |
417 | s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator |
418 | s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of | |
154e51a4 | 419 | s/^(\s+)// && do {$new .= ' '; next;}; |
bf076876 | 420 | s/^0X([0-9A-F]+)[UL]*//i |
25146a1a JH |
421 | && do {my $hex = $1; |
422 | $hex =~ s/^0+//; | |
423 | if (length $hex > 8 && !$Config{use64bitint}) { | |
424 | # Croak if nv_preserves_uv_bits < 64 ? | |
425 | $new .= hex(substr($hex, -8)) + | |
426 | 2**32 * hex(substr($hex, 0, -8)); | |
5538372e | 427 | # The above will produce "erroneous" code |
25146a1a JH |
428 | # if the hex constant was e.g. inside UINT64_C |
429 | # macro, but then again, h2ph is an approximation. | |
430 | } else { | |
431 | $new .= lc("0x$hex"); | |
432 | } | |
433 | next;}; | |
fd3f0aff | 434 | s/^(-?\d+\.\d+E[-+]?\d+)[FL]?//i && do {$new .= $1; next;}; |
50f6e060 | 435 | s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;}; |
154e51a4 LW |
436 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
437 | s/^'((\\"|[^"])*)'// && do { | |
438 | if ($curargs{$1}) { | |
439 | $new .= "ord('\$$1')"; | |
ee580363 | 440 | } else { |
154e51a4 LW |
441 | $new .= "ord('$1')"; |
442 | } | |
443 | next; | |
444 | }; | |
5f05dabc | 445 | # replace "sizeof(foo)" with "{foo}" |
446 | # also, remove * (C dereference operator) to avoid perl syntax | |
447 | # problems. Where the %sizeof array comes from is anyone's | |
448 | # guess (c2ph?), but this at least avoids fatal syntax errors. | |
449 | # Behavior is undefined if sizeof() delimiters are unbalanced. | |
450 | # This code was modified to able to handle constructs like this: | |
451 | # sizeof(*(p)), which appear in the HP-UX 10.01 header files. | |
452 | s/^sizeof\s*\(// && do { | |
453 | $new .= '$sizeof'; | |
454 | my $lvl = 1; # already saw one open paren | |
455 | # tack { on the front, and skip it in the loop | |
456 | $_ = "{" . "$_"; | |
457 | my $index = 1; | |
458 | # find balanced closing paren | |
459 | while ($index <= length($_) && $lvl > 0) { | |
460 | $lvl++ if substr($_, $index, 1) eq "("; | |
461 | $lvl-- if substr($_, $index, 1) eq ")"; | |
462 | $index++; | |
463 | } | |
464 | # tack } on the end, replacing ) | |
465 | substr($_, $index - 1, 1) = "}"; | |
466 | # remove pesky * operators within the sizeof argument | |
467 | substr($_, 0, $index - 1) =~ s/\*//g; | |
468 | next; | |
469 | }; | |
50f6e060 KS |
470 | # Eliminate typedefs |
471 | /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do { | |
55c8af0d | 472 | my $doit = 1; |
50f6e060 | 473 | foreach (split /\s+/, $1) { # Make sure all the words are types, |
55c8af0d WL |
474 | unless($isatype{$_} or $_ eq 'struct' or $_ eq 'union'){ |
475 | $doit = 0; | |
476 | last; | |
477 | } | |
478 | } | |
479 | if( $doit ){ | |
480 | s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them. | |
50f6e060 | 481 | } |
50f6e060 | 482 | }; |
ee580363 GS |
483 | # struct/union member, including arrays: |
484 | s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do { | |
fc865b05 | 485 | my $id = $1; |
ee580363 GS |
486 | $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g; |
487 | $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args); | |
488 | while($id =~ /\[\s*([^\$\&\d\]]+)\]/) { | |
489 | my($index) = $1; | |
490 | $index =~ s/\s//g; | |
491 | if(exists($curargs{$index})) { | |
492 | $index = "\$$index"; | |
493 | } else { | |
494 | $index = "&$index"; | |
495 | } | |
496 | $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/; | |
497 | } | |
498 | $new .= " (\$$id)"; | |
50f6e060 | 499 | }; |
154e51a4 | 500 | s/^([_a-zA-Z]\w*)// && do { |
fc865b05 | 501 | my $id = $1; |
99ed927b | 502 | if ($id eq 'struct' || $id eq 'union') { |
fe14fcc3 LW |
503 | s/^\s+(\w+)//; |
504 | $id .= ' ' . $1; | |
505 | $isatype{$id} = 1; | |
ee580363 | 506 | } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) { |
50f6e060 | 507 | while (s/^\s+(\w+)//) { $id .= ' ' . $1; } |
fe14fcc3 LW |
508 | $isatype{$id} = 1; |
509 | } | |
154e51a4 | 510 | if ($curargs{$id}) { |
ee580363 GS |
511 | $new .= "\$$id"; |
512 | $new .= '->' if /^[\[\{]/; | |
513 | } elsif ($id eq 'defined') { | |
154e51a4 | 514 | $new .= 'defined'; |
cd4e1efa MS |
515 | } elsif (/^\s*\(/) { |
516 | s/^\s*\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat | |
154e51a4 | 517 | $new .= " &$id"; |
ee580363 | 518 | } elsif ($isatype{$id}) { |
9a108c6c | 519 | if ($new =~ /\{\s*$/) { |
fe14fcc3 | 520 | $new .= "'$id'"; |
ee580363 | 521 | } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { |
fe14fcc3 LW |
522 | $new =~ s/\(\s*$//; |
523 | s/^[\s*]*\)//; | |
ee580363 | 524 | } else { |
b276c83d | 525 | $new .= q(').$id.q('); |
fe14fcc3 | 526 | } |
ee580363 | 527 | } else { |
3983eafb SK |
528 | if ($inif) { |
529 | if ($new =~ /defined\s*$/) { | |
530 | $new .= '(&' . $id . ')'; | |
531 | } elsif ($new =~ /defined\s*\($/) { | |
532 | $new .= '&' . $id; | |
533 | } else { | |
534 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : undef)'; | |
535 | } | |
ee580363 GS |
536 | } elsif (/^\[/) { |
537 | $new .= " \$$id"; | |
538 | } else { | |
748a9306 LW |
539 | $new .= ' &' . $id; |
540 | } | |
154e51a4 LW |
541 | } |
542 | next; | |
543 | }; | |
fb21d8eb | 544 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; |
154e51a4 LW |
545 | } |
546 | } | |
50f6e060 KS |
547 | |
548 | ||
79c1b905 KS |
549 | sub next_line |
550 | { | |
dccff43d | 551 | my $file = shift; |
79c1b905 | 552 | my ($in, $out); |
b7bcf494 | 553 | my $pre_sub_tri_graphs = 1; |
79c1b905 KS |
554 | |
555 | READ: while (not eof IN) { | |
556 | $in .= <IN>; | |
557 | chomp $in; | |
558 | next unless length $in; | |
559 | ||
560 | while (length $in) { | |
b7bcf494 | 561 | if ($pre_sub_tri_graphs) { |
bf076876 | 562 | # Preprocess all tri-graphs |
b7bcf494 PP |
563 | # including things stuck in quoted string constants. |
564 | $in =~ s/\?\?=/#/g; # | ??=| #| | |
565 | $in =~ s/\?\?\!/|/g; # | ??!| || | |
566 | $in =~ s/\?\?'/^/g; # | ??'| ^| | |
567 | $in =~ s/\?\?\(/[/g; # | ??(| [| | |
568 | $in =~ s/\?\?\)/]/g; # | ??)| ]| | |
569 | $in =~ s/\?\?\-/~/g; # | ??-| ~| | |
570 | $in =~ s/\?\?\//\\/g; # | ??/| \| | |
571 | $in =~ s/\?\?</{/g; # | ??<| {| | |
572 | $in =~ s/\?\?>/}/g; # | ??>| }| | |
573 | } | |
9efe82d3 | 574 | if ($in =~ /^\#ifdef __LANGUAGE_PASCAL__/) { |
bf076876 | 575 | # Tru64 disassembler.h evilness: mixed C and Pascal. |
9efe82d3 | 576 | while (<IN>) { |
bf076876 | 577 | last if /^\#endif/; |
9efe82d3 | 578 | } |
bf076876 | 579 | $in = ""; |
9efe82d3 JH |
580 | next READ; |
581 | } | |
37723803 | 582 | if ($in =~ /^extern inline / && # Inlined assembler. |
dccff43d | 583 | $^O eq 'linux' && $file =~ m!(?:^|/)asm/[^/]+\.h$!) { |
bf076876 AT |
584 | while (<IN>) { |
585 | last if /^}/; | |
dccff43d | 586 | } |
bf076876 | 587 | $in = ""; |
dccff43d JH |
588 | next READ; |
589 | } | |
79c1b905 KS |
590 | if ($in =~ s/\\$//) { # \-newline |
591 | $out .= ' '; | |
592 | next READ; | |
593 | } elsif ($in =~ s/^([^"'\\\/]+)//) { # Passthrough | |
594 | $out .= $1; | |
595 | } elsif ($in =~ s/^(\\.)//) { # \... | |
596 | $out .= $1; | |
ab5fe4d6 KS |
597 | } elsif ($in =~ /^'/) { # '... |
598 | if ($in =~ s/^('(\\.|[^'\\])*')//) { | |
599 | $out .= $1; | |
600 | } else { | |
601 | next READ; | |
602 | } | |
603 | } elsif ($in =~ /^"/) { # "... | |
604 | if ($in =~ s/^("(\\.|[^"\\])*")//) { | |
605 | $out .= $1; | |
606 | } else { | |
607 | next READ; | |
608 | } | |
79c1b905 | 609 | } elsif ($in =~ s/^\/\/.*//) { # //... |
edf6e4ec | 610 | # fall through |
79c1b905 KS |
611 | } elsif ($in =~ m/^\/\*/) { # /*... |
612 | # C comment removal adapted from perlfaq6: | |
613 | if ($in =~ s/^\/\*[^*]*\*+([^\/*][^*]*\*+)*\///) { | |
614 | $out .= ' '; | |
615 | } else { # Incomplete /* */ | |
616 | next READ; | |
617 | } | |
618 | } elsif ($in =~ s/^(\/)//) { # /... | |
619 | $out .= $1; | |
620 | } elsif ($in =~ s/^([^\'\"\\\/]+)//) { | |
621 | $out .= $1; | |
889e303a JH |
622 | } elsif ($^O eq 'linux' && |
623 | $file =~ m!(?:^|/)linux/byteorder/pdp_endian\.h$! && | |
624 | $in =~ s!\'T KNOW!!) { | |
625 | $out =~ s!I DON$!I_DO_NOT_KNOW!; | |
79c1b905 | 626 | } else { |
917244ce AS |
627 | if ($opt_e) { |
628 | warn "Cannot parse $file:\n$in\n"; | |
629 | $bad_file{$file} = 1; | |
630 | $in = ''; | |
631 | $out = undef; | |
632 | last READ; | |
633 | } else { | |
dccff43d | 634 | die "Cannot parse:\n$in\n"; |
917244ce | 635 | } |
79c1b905 KS |
636 | } |
637 | } | |
638 | ||
edf6e4ec | 639 | last READ if $out =~ /\S/; |
79c1b905 KS |
640 | } |
641 | ||
642 | return $out; | |
643 | } | |
644 | ||
645 | ||
50f6e060 KS |
646 | # Handle recursive subdirectories without getting a grotesquely big stack. |
647 | # Could this be implemented using File::Find? | |
648 | sub next_file | |
649 | { | |
650 | my $file; | |
651 | ||
652 | while (@ARGV) { | |
653 | $file = shift @ARGV; | |
654 | ||
655 | if ($file eq '-' or -f $file or -l $file) { | |
656 | return $file; | |
657 | } elsif (-d $file) { | |
658 | if ($opt_r) { | |
659 | expand_glob($file); | |
660 | } else { | |
28fb188d | 661 | print STDERR "Skipping directory '$file'\n"; |
50f6e060 | 662 | } |
1d3434b8 GS |
663 | } elsif ($opt_a) { |
664 | return $file; | |
665 | } else { | |
28fb188d | 666 | print STDERR "Skipping '$file': not a file or directory\n"; |
50f6e060 KS |
667 | } |
668 | } | |
669 | ||
670 | return undef; | |
671 | } | |
672 | ||
673 | ||
674 | # Put all the files in $directory into @ARGV for processing. | |
675 | sub expand_glob | |
676 | { | |
677 | my ($directory) = @_; | |
678 | ||
679 | $directory =~ s:/$::; | |
680 | ||
681 | opendir DIR, $directory; | |
682 | foreach (readdir DIR) { | |
683 | next if ($_ eq '.' or $_ eq '..'); | |
684 | ||
685 | # expand_glob() is going to be called until $ARGV[0] isn't a | |
686 | # directory; so push directories, and unshift everything else. | |
1d3434b8 GS |
687 | if (-d "$directory/$_") { push @ARGV, "$directory/$_" } |
688 | else { unshift @ARGV, "$directory/$_" } | |
50f6e060 KS |
689 | } |
690 | closedir DIR; | |
691 | } | |
692 | ||
693 | ||
694 | # Given $file, a symbolic link to a directory in the C include directory, | |
695 | # make an equivalent symbolic link in $Dest_dir, if we can figure out how. | |
696 | # Otherwise, just duplicate the file or directory. | |
697 | sub link_if_possible | |
698 | { | |
699 | my ($dirlink) = @_; | |
700 | my $target = eval 'readlink($dirlink)'; | |
701 | ||
702 | if ($target =~ m:^\.\./: or $target =~ m:^/:) { | |
703 | # The target of a parent or absolute link could leave the $Dest_dir | |
704 | # hierarchy, so let's put all of the contents of $dirlink (actually, | |
705 | # the contents of $target) into @ARGV; as a side effect down the | |
706 | # line, $dirlink will get created as an _actual_ directory. | |
707 | expand_glob($dirlink); | |
708 | } else { | |
709 | if (-l "$Dest_dir/$dirlink") { | |
710 | unlink "$Dest_dir/$dirlink" or | |
711 | print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n"; | |
712 | } | |
1d3434b8 | 713 | |
50f6e060 KS |
714 | if (eval 'symlink($target, "$Dest_dir/$dirlink")') { |
715 | print "Linking $target -> $Dest_dir/$dirlink\n"; | |
716 | ||
717 | # Make sure that the link _links_ to something: | |
718 | if (! -e "$Dest_dir/$target") { | |
1d3434b8 | 719 | mkpath("$Dest_dir/$target", 0755) or |
50f6e060 KS |
720 | print STDERR "Could not create $Dest_dir/$target/\n"; |
721 | } | |
722 | } else { | |
723 | print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n"; | |
724 | } | |
725 | } | |
726 | } | |
727 | ||
728 | ||
1d3434b8 GS |
729 | # Push all #included files in $file onto our stack, except for STDIN |
730 | # and files we've already processed. | |
731 | sub queue_includes_from | |
732 | { | |
733 | my ($file) = @_; | |
734 | my $line; | |
735 | ||
736 | return if ($file eq "-"); | |
737 | ||
738 | open HEADER, $file or return; | |
739 | while (defined($line = <HEADER>)) { | |
740 | while (/\\$/) { # Handle continuation lines | |
741 | chop $line; | |
742 | $line .= <HEADER>; | |
743 | } | |
744 | ||
5668511f NT |
745 | if ($line =~ /^#\s*include\s+([<"])(.*?)[>"]/) { |
746 | my ($delimiter, $new_file) = ($1, $2); | |
747 | # copy the prefix in the quote syntax (#include "x.h") case | |
748 | if ($delimiter eq q{"} && $file =~ m|^(.*)/|) { | |
749 | $new_file = "$1/$new_file"; | |
750 | } | |
751 | push(@ARGV, $new_file) unless $Is_converted{$new_file}; | |
1d3434b8 GS |
752 | } |
753 | } | |
754 | close HEADER; | |
755 | } | |
756 | ||
757 | ||
758 | # Determine include directories; $Config{usrinc} should be enough for (all | |
05d7b09c | 759 | # non-GCC?) C compilers, but gcc uses additional include directories. |
1d3434b8 GS |
760 | sub inc_dirs |
761 | { | |
e7ec705d NT |
762 | my $from_gcc = `LC_ALL=C $Config{cc} -v -E - < /dev/null 2>&1 | awk '/^#include/, /^End of search list/' | grep '^ '`; |
763 | length($from_gcc) ? (split(' ', $from_gcc), $Config{usrinc}) : ($Config{usrinc}); | |
1d3434b8 GS |
764 | } |
765 | ||
766 | ||
7f04632d GS |
767 | # Create "_h2ph_pre.ph", if it doesn't exist or was built by a different |
768 | # version of h2ph. | |
769 | sub build_preamble_if_necessary | |
770 | { | |
771 | # Increment $VERSION every time this function is modified: | |
8d66b3f9 | 772 | my $VERSION = 3; |
7f04632d GS |
773 | my $preamble = "$Dest_dir/_h2ph_pre.ph"; |
774 | ||
775 | # Can we skip building the preamble file? | |
776 | if (-r $preamble) { | |
777 | # Extract version number from first line of preamble: | |
778 | open PREAMBLE, $preamble or die "Cannot open $preamble: $!"; | |
779 | my $line = <PREAMBLE>; | |
780 | $line =~ /(\b\d+\b)/; | |
781 | close PREAMBLE or die "Cannot close $preamble: $!"; | |
782 | ||
783 | # Don't build preamble if a compatible preamble exists: | |
784 | return if $1 == $VERSION; | |
785 | } | |
786 | ||
787 | my (%define) = _extract_cc_defines(); | |
788 | ||
789 | open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!"; | |
ddfca5da | 790 | print PREAMBLE "# This file was created by h2ph version $VERSION\n"; |
7f04632d | 791 | |
ddfca5da JVD |
792 | foreach (sort keys %define) { |
793 | if ($opt_D) { | |
794 | print PREAMBLE "# $_=$define{$_}\n"; | |
795 | } | |
796 | if ($define{$_} =~ /^\((.*)\)$/) { | |
797 | # parenthesized value: d=(v) | |
798 | $define{$_} = $1; | |
799 | } | |
8d66b3f9 RB |
800 | if (/^(\w+)\((\w)\)$/) { |
801 | my($macro, $arg) = ($1, $2); | |
802 | my $def = $define{$_}; | |
803 | $def =~ s/$arg/\$\{$arg\}/g; | |
804 | print PREAMBLE <<DEFINE; | |
805 | unless (defined &$macro) { sub $macro(\$) { my (\$$arg) = \@_; \"$def\" } } | |
806 | ||
807 | DEFINE | |
808 | } elsif | |
809 | ($define{$_} =~ /^([+-]?(\d+)?\.\d+([eE][+-]?\d+)?)[FL]?$/) { | |
ddfca5da JVD |
810 | # float: |
811 | print PREAMBLE | |
812 | "unless (defined &$_) { sub $_() { $1 } }\n\n"; | |
813 | } elsif ($define{$_} =~ /^([+-]?\d+)U?L{0,2}$/i) { | |
814 | # integer: | |
815 | print PREAMBLE | |
816 | "unless (defined &$_) { sub $_() { $1 } }\n\n"; | |
817 | } elsif ($define{$_} =~ /^\w+$/) { | |
8d66b3f9 RB |
818 | my $def = $define{$_}; |
819 | if ($isatype{$def}) { | |
820 | print PREAMBLE | |
821 | "unless (defined &$_) { sub $_() { \"$def\" } }\n\n"; | |
822 | } else { | |
823 | print PREAMBLE | |
824 | "unless (defined &$_) { sub $_() { &$def } }\n\n"; | |
825 | } | |
ddfca5da JVD |
826 | } else { |
827 | print PREAMBLE | |
828 | "unless (defined &$_) { sub $_() { \"", | |
829 | quotemeta($define{$_}), "\" } }\n\n"; | |
830 | } | |
831 | } | |
25436194 | 832 | print PREAMBLE "\n1;\n"; # avoid 'did not return a true value' when empty |
7f04632d GS |
833 | close PREAMBLE or die "Cannot close $preamble: $!"; |
834 | } | |
835 | ||
836 | ||
837 | # %Config contains information on macros that are pre-defined by the | |
838 | # system's compiler. We need this information to make the .ph files | |
839 | # function with perl as the .h files do with cc. | |
840 | sub _extract_cc_defines | |
841 | { | |
842 | my %define; | |
fc865b05 | 843 | my $allsymbols = join " ", |
ddfca5da | 844 | @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'}; |
7f04632d | 845 | |
28fb188d | 846 | # Split compiler pre-definitions into 'key=value' pairs: |
ddfca5da JVD |
847 | while ($allsymbols =~ /([^\s]+)=((\\\s|[^\s])+)/g) { |
848 | $define{$1} = $2; | |
849 | if ($opt_D) { | |
850 | print STDERR "$_: $1 -> $2\n"; | |
851 | } | |
7f04632d GS |
852 | } |
853 | ||
854 | return %define; | |
855 | } | |
856 | ||
857 | ||
50f6e060 KS |
858 | 1; |
859 | ||
154e51a4 | 860 | ############################################################################## |
1fef88e7 JM |
861 | __END__ |
862 | ||
863 | =head1 NAME | |
864 | ||
865 | h2ph - convert .h C header files to .ph Perl header files | |
866 | ||
867 | =head1 SYNOPSIS | |
868 | ||
fe89bf70 P |
869 | B<h2ph [-d destination directory] [-r | -a] [-l] [-h] [-e] [-D] [-Q] |
870 | [headerfiles]> | |
1fef88e7 JM |
871 | |
872 | =head1 DESCRIPTION | |
154e51a4 | 873 | |
1fef88e7 | 874 | I<h2ph> |
154e51a4 LW |
875 | converts any C header files specified to the corresponding Perl header file |
876 | format. | |
877 | It is most easily run while in /usr/include: | |
154e51a4 LW |
878 | |
879 | cd /usr/include; h2ph * sys/* | |
880 | ||
50f6e060 KS |
881 | or |
882 | ||
ef0ae776 JH |
883 | cd /usr/include; h2ph * sys/* arpa/* netinet/* |
884 | ||
885 | or | |
886 | ||
50f6e060 KS |
887 | cd /usr/include; h2ph -r -l . |
888 | ||
b306bf39 RS |
889 | The output files are placed in the hierarchy rooted at Perl's |
890 | architecture dependent library directory. You can specify a different | |
891 | hierarchy with a B<-d> switch. | |
892 | ||
fe14fcc3 | 893 | If run with no arguments, filters standard input to standard output. |
1fef88e7 | 894 | |
50f6e060 KS |
895 | =head1 OPTIONS |
896 | ||
897 | =over 4 | |
898 | ||
899 | =item -d destination_dir | |
900 | ||
901 | Put the resulting B<.ph> files beneath B<destination_dir>, instead of | |
c561b895 | 902 | beneath the default Perl library location (C<$Config{'installsitearch'}>). |
50f6e060 KS |
903 | |
904 | =item -r | |
905 | ||
906 | Run recursively; if any of B<headerfiles> are directories, then run I<h2ph> | |
1d3434b8 GS |
907 | on all files in those directories (and their subdirectories, etc.). B<-r> |
908 | and B<-a> are mutually exclusive. | |
909 | ||
910 | =item -a | |
911 | ||
912 | Run automagically; convert B<headerfiles>, as well as any B<.h> files | |
913 | which they include. This option will search for B<.h> files in all | |
914 | directories which your C compiler ordinarily uses. B<-a> and B<-r> are | |
915 | mutually exclusive. | |
50f6e060 KS |
916 | |
917 | =item -l | |
918 | ||
919 | Symbolic links will be replicated in the destination directory. If B<-l> | |
920 | is not specified, then links are skipped over. | |
921 | ||
922 | =item -h | |
923 | ||
28fb188d | 924 | Put 'hints' in the .ph files which will help in locating problems with |
50f6e060 KS |
925 | I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax |
926 | errors, instead of the cryptic | |
927 | ||
928 | [ some error condition ] at (eval mmm) line nnn | |
929 | ||
930 | you will see the slightly more helpful | |
931 | ||
932 | [ some error condition ] at filename.ph line nnn | |
933 | ||
934 | However, the B<.ph> files almost double in size when built using B<-h>. | |
935 | ||
fe89bf70 P |
936 | =item -e |
937 | ||
938 | If an error is encountered during conversion, output file will be removed and | |
939 | a warning emitted instead of terminating the conversion immediately. | |
940 | ||
1d3434b8 GS |
941 | =item -D |
942 | ||
943 | Include the code from the B<.h> file as a comment in the B<.ph> file. | |
944 | This is primarily used for debugging I<h2ph>. | |
945 | ||
7f04632d GS |
946 | =item -Q |
947 | ||
28fb188d | 948 | 'Quiet' mode; don't print out the names of the files being converted. |
7f04632d | 949 | |
50f6e060 KS |
950 | =back |
951 | ||
1fef88e7 JM |
952 | =head1 ENVIRONMENT |
953 | ||
154e51a4 | 954 | No environment variables are used. |
1fef88e7 JM |
955 | |
956 | =head1 FILES | |
957 | ||
958 | /usr/include/*.h | |
959 | /usr/include/sys/*.h | |
960 | ||
154e51a4 | 961 | etc. |
1fef88e7 JM |
962 | |
963 | =head1 AUTHOR | |
964 | ||
154e51a4 | 965 | Larry Wall |
1fef88e7 JM |
966 | |
967 | =head1 SEE ALSO | |
968 | ||
154e51a4 | 969 | perl(1) |
1fef88e7 JM |
970 | |
971 | =head1 DIAGNOSTICS | |
972 | ||
154e51a4 | 973 | The usual warnings if it can't read or write the files involved. |
1fef88e7 JM |
974 | |
975 | =head1 BUGS | |
976 | ||
154e51a4 | 977 | Doesn't construct the %sizeof array for you. |
1fef88e7 | 978 | |
154e51a4 LW |
979 | It doesn't handle all C constructs, but it does attempt to isolate |
980 | definitions inside evals so that you can get at the definitions | |
981 | that it can translate. | |
1fef88e7 | 982 | |
154e51a4 LW |
983 | It's only intended as a rough tool. |
984 | You may need to dicker with the files produced. | |
1fef88e7 | 985 | |
7f04632d GS |
986 | You have to run this program by hand; it's not run as part of the Perl |
987 | installation. | |
988 | ||
989 | Doesn't handle complicated expressions built piecemeal, a la: | |
990 | ||
991 | enum { | |
ddfca5da JVD |
992 | FIRST_VALUE, |
993 | SECOND_VALUE, | |
7f04632d | 994 | #ifdef ABC |
ddfca5da | 995 | THIRD_VALUE |
7f04632d GS |
996 | #endif |
997 | }; | |
998 | ||
999 | Doesn't necessarily locate all of your C compiler's internally-defined | |
1000 | symbols. | |
1001 | ||
1fef88e7 JM |
1002 | =cut |
1003 | ||
154e51a4 | 1004 | !NO!SUBS! |
4633a7c4 LW |
1005 | |
1006 | close OUT or die "Can't close $file: $!"; | |
1007 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
1008 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
8a5546a1 | 1009 | chdir $origdir; |