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 | ||
50f6e060 KS |
99 | # $eval_index goes into ``#line'' directives, to help locate syntax errors: |
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(); |
154e51a4 | 154 | $new = 1 if $new eq ''; |
ee580363 GS |
155 | $new = reindent($new); |
156 | $args = reindent($args); | |
154e51a4 | 157 | if ($t ne '') { |
ee580363 | 158 | $new =~ s/(['\\])/\\$1/g; #']); |
7f04632d | 159 | |
50f6e060 KS |
160 | if ($opt_h) { |
161 | print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n"; | |
162 | $eval_index++; | |
163 | } else { | |
164 | print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n"; | |
165 | } | |
ee580363 | 166 | } else { |
7f04632d GS |
167 | # Shunt around such directives as `#define FOO FOO': |
168 | next if " \&$name" eq $new; | |
169 | ||
ee580363 | 170 | print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n"; |
154e51a4 LW |
171 | } |
172 | } | |
5668511f | 173 | } elsif (/^(include|import|include_next)\s*([<\"])(.*)[>\"]/) { |
917244ce | 174 | $incl_type = $1; |
5668511f NT |
175 | $incl_quote = $2; |
176 | $incl = $3; | |
917244ce AS |
177 | if (($incl_type eq 'include_next') || |
178 | ($opt_e && exists($bad_file{$incl}))) { | |
179 | $incl =~ s/\.h$/.ph/; | |
ee580363 | 180 | print OUT ($t, |
1d2dff63 GS |
181 | "eval {\n"); |
182 | $tab += 4; | |
183 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
917244ce AS |
184 | print OUT ($t, "my(\@REM);\n"); |
185 | if ($incl_type eq 'include_next') { | |
1d2dff63 GS |
186 | print OUT ($t, |
187 | "my(\%INCD) = map { \$INC{\$_} => 1 } ", | |
917244ce AS |
188 | "(grep { \$_ eq \"$incl\" } ", |
189 | "keys(\%INC));\n"); | |
1d2dff63 | 190 | print OUT ($t, |
917244ce | 191 | "\@REM = map { \"\$_/$incl\" } ", |
1d2dff63 | 192 | "(grep { not exists(\$INCD{\"\$_/$incl\"})", |
917244ce AS |
193 | " and -f \"\$_/$incl\" } \@INC);\n"); |
194 | } else { | |
195 | print OUT ($t, | |
196 | "\@REM = map { \"\$_/$incl\" } ", | |
197 | "(grep {-r \"\$_/$incl\" } \@INC);\n"); | |
198 | } | |
1d2dff63 GS |
199 | print OUT ($t, |
200 | "require \"\$REM[0]\" if \@REM;\n"); | |
201 | $tab -= 4; | |
202 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
203 | print OUT ($t, | |
204 | "};\n"); | |
205 | print OUT ($t, | |
206 | "warn(\$\@) if \$\@;\n"); | |
917244ce AS |
207 | } else { |
208 | $incl =~ s/\.h$/.ph/; | |
5668511f NT |
209 | # copy the prefix in the quote syntax (#include "x.h") case |
210 | if ($incl !~ m|/| && $incl_quote eq q{"} && $file =~ m|^(.*)/|) { | |
211 | $incl = "$1/$incl"; | |
212 | } | |
917244ce AS |
213 | print OUT $t,"require '$incl';\n"; |
214 | } | |
ee580363 GS |
215 | } elsif (/^ifdef\s+(\w+)/) { |
216 | print OUT $t,"if(defined(&$1)) {\n"; | |
154e51a4 LW |
217 | $tab += 4; |
218 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 GS |
219 | } elsif (/^ifndef\s+(\w+)/) { |
220 | print OUT $t,"unless(defined(&$1)) {\n"; | |
221 | $tab += 4; | |
222 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
223 | } elsif (s/^if\s+//) { | |
154e51a4 | 224 | $new = ''; |
748a9306 | 225 | $inif = 1; |
5f05dabc | 226 | expr(); |
748a9306 | 227 | $inif = 0; |
ee580363 | 228 | print OUT $t,"if($new) {\n"; |
154e51a4 LW |
229 | $tab += 4; |
230 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 231 | } elsif (s/^elif\s+//) { |
154e51a4 | 232 | $new = ''; |
748a9306 | 233 | $inif = 1; |
5f05dabc | 234 | expr(); |
748a9306 | 235 | $inif = 0; |
154e51a4 LW |
236 | $tab -= 4; |
237 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 238 | print OUT $t,"}\n elsif($new) {\n"; |
154e51a4 LW |
239 | $tab += 4; |
240 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 241 | } elsif (/^else/) { |
154e51a4 LW |
242 | $tab -= 4; |
243 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 244 | print OUT $t,"} else {\n"; |
154e51a4 LW |
245 | $tab += 4; |
246 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
ee580363 | 247 | } elsif (/^endif/) { |
154e51a4 LW |
248 | $tab -= 4; |
249 | $t = "\t" x ($tab / 8) . ' ' x ($tab % 8); | |
250 | print OUT $t,"}\n"; | |
ee580363 GS |
251 | } elsif(/^undef\s+(\w+)/) { |
252 | print OUT $t, "undef(&$1) if defined(&$1);\n"; | |
d3e00f1c KS |
253 | } elsif(/^error\s+(".*")/) { |
254 | print OUT $t, "die($1);\n"; | |
ee580363 | 255 | } elsif(/^error\s+(.*)/) { |
5d42aa7b | 256 | print OUT $t, "die(\"", quotemeta($1), "\");\n"; |
ee580363 | 257 | } elsif(/^warning\s+(.*)/) { |
5d42aa7b | 258 | print OUT $t, "warn(\"", quotemeta($1), "\");\n"; |
ee580363 GS |
259 | } elsif(/^ident\s+(.*)/) { |
260 | print OUT $t, "# $1\n"; | |
154e51a4 | 261 | } |
09f42789 | 262 | } elsif (/^\s*(typedef\s*)?enum\s*(\s+[a-zA-Z_]\w*\s*)?/) { # { for vi |
e7cba2ba | 263 | until(/\{[^}]*\}.*;/ || /;/) { |
dccff43d | 264 | last unless defined ($next = next_line($file)); |
e7cba2ba JH |
265 | chomp $next; |
266 | # drop "#define FOO FOO" in enums | |
267 | $next =~ s/^\s*#\s*define\s+(\w+)\s+\1\s*$//; | |
9e3b9e5a OT |
268 | # #defines in enums (aliases) |
269 | $next =~ s/^\s*#\s*define\s+(\w+)\s+(\w+)\s*$/$1 = $2,/; | |
1d2dff63 GS |
270 | $_ .= $next; |
271 | print OUT "# $next\n" if $opt_D; | |
272 | } | |
e7cba2ba | 273 | s/#\s*if.*?#\s*endif//g; # drop #ifdefs |
1d2dff63 GS |
274 | s@/\*.*?\*/@@g; |
275 | s/\s+/ /g; | |
e7cba2ba | 276 | next unless /^\s?(typedef\s?)?enum\s?([a-zA-Z_]\w*)?\s?\{(.*)\}\s?([a-zA-Z_]\w*)?\s?;/; |
fc865b05 JH |
277 | (my $enum_subs = $3) =~ s/\s//g; |
278 | my @enum_subs = split(/,/, $enum_subs); | |
279 | my $enum_val = -1; | |
280 | foreach my $enum (@enum_subs) { | |
281 | my ($enum_name, $enum_value) = $enum =~ /^([a-zA-Z_]\w*)(=.+)?$/; | |
9e3b9e5a | 282 | $enum_name or next; |
1d2dff63 GS |
283 | $enum_value =~ s/^=//; |
284 | $enum_val = (length($enum_value) ? $enum_value : $enum_val + 1); | |
285 | if ($opt_h) { | |
286 | print OUT ($t, | |
287 | "eval(\"\\n#line $eval_index $outfile\\n", | |
288 | "sub $enum_name () \{ $enum_val; \}\") ", | |
289 | "unless defined(\&$enum_name);\n"); | |
290 | ++ $eval_index; | |
291 | } else { | |
292 | print OUT ($t, | |
293 | "eval(\"sub $enum_name () \{ $enum_val; \}\") ", | |
294 | "unless defined(\&$enum_name);\n"); | |
295 | } | |
296 | } | |
5fff27bd RGS |
297 | } elsif (/^(?:__extension__\s+)?(?:extern|static)\s+(?:__)?inline(?:__)?\s+/ |
298 | and !/;\s*$/ and !/{\s*}\s*$/) | |
299 | { # { for vi | |
09f42789 | 300 | # This is a hack to parse the inline functions in the glibc headers. |
5fff27bd RGS |
301 | # Warning: massive kludge ahead. We suppose inline functions |
302 | # are mainly constructed like macros. | |
09f42789 RGS |
303 | while (1) { |
304 | last unless defined ($next = next_line($file)); | |
305 | chomp $next; | |
5fff27bd RGS |
306 | undef $_, last if $next =~ /__THROW\s*;/ |
307 | or $next =~ /^(__extension__|extern|static)\b/; | |
09f42789 RGS |
308 | $_ .= " $next"; |
309 | print OUT "# $next\n" if $opt_D; | |
310 | last if $next =~ /^}|^{.*}\s*$/; | |
311 | } | |
312 | next if not defined; # because it's only a prototype | |
0e885527 RGS |
313 | s/\b(__extension__|extern|static|(?:__)?inline(?:__)?)\b//g; |
314 | # violently drop #ifdefs | |
315 | s/#\s*if.*?#\s*endif//g | |
316 | and print OUT "# some #ifdef were dropped here -- fill in the blanks\n"; | |
09f42789 RGS |
317 | if (s/^(?:\w|\s|\*)*\s(\w+)\s*//) { |
318 | $name = $1; | |
319 | } else { | |
320 | warn "name not found"; next; # shouldn't occur... | |
321 | } | |
322 | my @args; | |
323 | if (s/^\(([^()]*)\)\s*(\w+\s*)*//) { | |
324 | for my $arg (split /,/, $1) { | |
325 | if ($arg =~ /(\w+)\s*$/) { | |
326 | $curargs{$1} = 1; | |
327 | push @args, $1; | |
328 | } | |
329 | } | |
330 | } | |
331 | $args = ( | |
332 | @args | |
d02b64de | 333 | ? "my(" . (join ',', map "\$$_", @args) . ") = \@_;\n$t " |
09f42789 RGS |
334 | : "" |
335 | ); | |
336 | my $proto = @args ? '' : '() '; | |
337 | $new = ''; | |
338 | s/\breturn\b//g; # "return" doesn't occur in macros usually... | |
339 | expr(); | |
0e885527 RGS |
340 | # try to find and perlify local C variables |
341 | our @local_variables = (); # needs to be a our(): (?{...}) bug workaround | |
e77cf69f RGS |
342 | { |
343 | use re "eval"; | |
344 | my $typelist = join '|', keys %isatype; | |
345 | $new =~ s[' | |
90851df9 | 346 | (?:(?:__)?const(?:__)?\s+)? |
e77cf69f RGS |
347 | (?:(?:un)?signed\s+)? |
348 | (?:long\s+)? | |
349 | (?:$typelist)\s+ | |
350 | (\w+) | |
351 | (?{ push @local_variables, $1 }) | |
352 | '] | |
353 | [my \$$1]gx; | |
354 | $new =~ s[' | |
90851df9 | 355 | (?:(?:__)?const(?:__)?\s+)? |
e77cf69f RGS |
356 | (?:(?:un)?signed\s+)? |
357 | (?:long\s+)? | |
358 | (?:$typelist)\s+ | |
359 | ' \s+ &(\w+) \s* ; | |
360 | (?{ push @local_variables, $1 }) | |
361 | ] | |
362 | [my \$$1;]gx; | |
363 | } | |
0e885527 | 364 | $new =~ s/&$_\b/\$$_/g for @local_variables; |
09f42789 | 365 | $new =~ s/(["\\])/\\$1/g; #"]); |
0e885527 | 366 | # now that's almost like a macro (we hope) |
f178b03b | 367 | EMIT($proto); |
154e51a4 LW |
368 | } |
369 | } | |
fc865b05 | 370 | $Is_converted{$file} = 1; |
917244ce AS |
371 | if ($opt_e && exists($bad_file{$file})) { |
372 | unlink($Dest_dir . '/' . $outfile); | |
373 | $next = ''; | |
374 | } else { | |
375 | print OUT "1;\n"; | |
09f42789 | 376 | queue_includes_from($file) if $opt_a; |
917244ce | 377 | } |
154e51a4 LW |
378 | } |
379 | ||
917244ce AS |
380 | if ($opt_e && (scalar(keys %bad_file) > 0)) { |
381 | warn "Was unable to convert the following files:\n"; | |
382 | warn "\t" . join("\n\t",sort(keys %bad_file)) . "\n"; | |
ee580363 GS |
383 | } |
384 | ||
917244ce | 385 | exit $Exit; |
fc865b05 | 386 | |
f178b03b TR |
387 | sub EMIT { |
388 | my $proto = shift; | |
389 | ||
390 | $new = reindent($new); | |
391 | $args = reindent($args); | |
392 | if ($t ne '') { | |
393 | $new =~ s/(['\\])/\\$1/g; #']); | |
394 | if ($opt_h) { | |
395 | print OUT $t, | |
396 | "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; | |
397 | $eval_index++; | |
398 | } else { | |
399 | print OUT $t, | |
400 | "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n"; | |
401 | } | |
402 | } else { | |
403 | print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n"; | |
404 | } | |
405 | %curargs = (); | |
406 | return; | |
407 | } | |
408 | ||
154e51a4 | 409 | sub expr { |
8d66b3f9 RB |
410 | if (/\b__asm__\b/) { # freak out |
411 | $new = '"(assembly code)"'; | |
412 | return | |
413 | } | |
fc865b05 | 414 | my $joined_args; |
ee580363 | 415 | if(keys(%curargs)) { |
fc865b05 | 416 | $joined_args = join('|', keys(%curargs)); |
ee580363 | 417 | } |
154e51a4 | 418 | while ($_ ne '') { |
ee580363 GS |
419 | s/^\&\&// && do { $new .= " &&"; next;}; # handle && operator |
420 | s/^\&([\(a-z\)]+)/$1/i; # hack for things that take the address of | |
154e51a4 | 421 | s/^(\s+)// && do {$new .= ' '; next;}; |
bf076876 | 422 | s/^0X([0-9A-F]+)[UL]*//i |
25146a1a JH |
423 | && do {my $hex = $1; |
424 | $hex =~ s/^0+//; | |
425 | if (length $hex > 8 && !$Config{use64bitint}) { | |
426 | # Croak if nv_preserves_uv_bits < 64 ? | |
427 | $new .= hex(substr($hex, -8)) + | |
428 | 2**32 * hex(substr($hex, 0, -8)); | |
429 | # The above will produce "errorneus" code | |
430 | # if the hex constant was e.g. inside UINT64_C | |
431 | # macro, but then again, h2ph is an approximation. | |
432 | } else { | |
433 | $new .= lc("0x$hex"); | |
434 | } | |
435 | next;}; | |
fd3f0aff | 436 | s/^(-?\d+\.\d+E[-+]?\d+)[FL]?//i && do {$new .= $1; next;}; |
50f6e060 | 437 | s/^(\d+)\s*[LU]*//i && do {$new .= $1; next;}; |
154e51a4 LW |
438 | s/^("(\\"|[^"])*")// && do {$new .= $1; next;}; |
439 | s/^'((\\"|[^"])*)'// && do { | |
440 | if ($curargs{$1}) { | |
441 | $new .= "ord('\$$1')"; | |
ee580363 | 442 | } else { |
154e51a4 LW |
443 | $new .= "ord('$1')"; |
444 | } | |
445 | next; | |
446 | }; | |
5f05dabc | 447 | # replace "sizeof(foo)" with "{foo}" |
448 | # also, remove * (C dereference operator) to avoid perl syntax | |
449 | # problems. Where the %sizeof array comes from is anyone's | |
450 | # guess (c2ph?), but this at least avoids fatal syntax errors. | |
451 | # Behavior is undefined if sizeof() delimiters are unbalanced. | |
452 | # This code was modified to able to handle constructs like this: | |
453 | # sizeof(*(p)), which appear in the HP-UX 10.01 header files. | |
454 | s/^sizeof\s*\(// && do { | |
455 | $new .= '$sizeof'; | |
456 | my $lvl = 1; # already saw one open paren | |
457 | # tack { on the front, and skip it in the loop | |
458 | $_ = "{" . "$_"; | |
459 | my $index = 1; | |
460 | # find balanced closing paren | |
461 | while ($index <= length($_) && $lvl > 0) { | |
462 | $lvl++ if substr($_, $index, 1) eq "("; | |
463 | $lvl-- if substr($_, $index, 1) eq ")"; | |
464 | $index++; | |
465 | } | |
466 | # tack } on the end, replacing ) | |
467 | substr($_, $index - 1, 1) = "}"; | |
468 | # remove pesky * operators within the sizeof argument | |
469 | substr($_, 0, $index - 1) =~ s/\*//g; | |
470 | next; | |
471 | }; | |
50f6e060 KS |
472 | # Eliminate typedefs |
473 | /\(([\w\s]+)[\*\s]*\)\s*[\w\(]/ && do { | |
55c8af0d | 474 | my $doit = 1; |
50f6e060 | 475 | foreach (split /\s+/, $1) { # Make sure all the words are types, |
55c8af0d WL |
476 | unless($isatype{$_} or $_ eq 'struct' or $_ eq 'union'){ |
477 | $doit = 0; | |
478 | last; | |
479 | } | |
480 | } | |
481 | if( $doit ){ | |
482 | s/\([\w\s]+[\*\s]*\)// && next; # then eliminate them. | |
50f6e060 | 483 | } |
50f6e060 | 484 | }; |
ee580363 GS |
485 | # struct/union member, including arrays: |
486 | s/^([_A-Z]\w*(\[[^\]]+\])?((\.|->)[_A-Z]\w*(\[[^\]]+\])?)+)//i && do { | |
fc865b05 | 487 | my $id = $1; |
ee580363 GS |
488 | $id =~ s/(\.|(->))([^\.\-]*)/->\{$3\}/g; |
489 | $id =~ s/\b([^\$])($joined_args)/$1\$$2/g if length($joined_args); | |
490 | while($id =~ /\[\s*([^\$\&\d\]]+)\]/) { | |
491 | my($index) = $1; | |
492 | $index =~ s/\s//g; | |
493 | if(exists($curargs{$index})) { | |
494 | $index = "\$$index"; | |
495 | } else { | |
496 | $index = "&$index"; | |
497 | } | |
498 | $id =~ s/\[\s*([^\$\&\d\]]+)\]/[$index]/; | |
499 | } | |
500 | $new .= " (\$$id)"; | |
50f6e060 | 501 | }; |
154e51a4 | 502 | s/^([_a-zA-Z]\w*)// && do { |
fc865b05 | 503 | my $id = $1; |
99ed927b | 504 | if ($id eq 'struct' || $id eq 'union') { |
fe14fcc3 LW |
505 | s/^\s+(\w+)//; |
506 | $id .= ' ' . $1; | |
507 | $isatype{$id} = 1; | |
ee580363 | 508 | } elsif ($id =~ /^((un)?signed)|(long)|(short)$/) { |
50f6e060 | 509 | while (s/^\s+(\w+)//) { $id .= ' ' . $1; } |
fe14fcc3 LW |
510 | $isatype{$id} = 1; |
511 | } | |
154e51a4 | 512 | if ($curargs{$id}) { |
ee580363 GS |
513 | $new .= "\$$id"; |
514 | $new .= '->' if /^[\[\{]/; | |
515 | } elsif ($id eq 'defined') { | |
154e51a4 | 516 | $new .= 'defined'; |
cd4e1efa MS |
517 | } elsif (/^\s*\(/) { |
518 | s/^\s*\((\w),/("$1",/ if $id =~ /^_IO[WR]*$/i; # cheat | |
154e51a4 | 519 | $new .= " &$id"; |
ee580363 | 520 | } elsif ($isatype{$id}) { |
9a108c6c | 521 | if ($new =~ /\{\s*$/) { |
fe14fcc3 | 522 | $new .= "'$id'"; |
ee580363 | 523 | } elsif ($new =~ /\(\s*$/ && /^[\s*]*\)/) { |
fe14fcc3 LW |
524 | $new =~ s/\(\s*$//; |
525 | s/^[\s*]*\)//; | |
ee580363 | 526 | } else { |
b276c83d | 527 | $new .= q(').$id.q('); |
fe14fcc3 | 528 | } |
ee580363 | 529 | } else { |
3983eafb SK |
530 | if ($inif) { |
531 | if ($new =~ /defined\s*$/) { | |
532 | $new .= '(&' . $id . ')'; | |
533 | } elsif ($new =~ /defined\s*\($/) { | |
534 | $new .= '&' . $id; | |
535 | } else { | |
536 | $new .= '(defined(&' . $id . ') ? &' . $id . ' : undef)'; | |
537 | } | |
ee580363 GS |
538 | } elsif (/^\[/) { |
539 | $new .= " \$$id"; | |
540 | } else { | |
748a9306 LW |
541 | $new .= ' &' . $id; |
542 | } | |
154e51a4 LW |
543 | } |
544 | next; | |
545 | }; | |
fb21d8eb | 546 | s/^(.)// && do { if ($1 ne '#') { $new .= $1; } next;}; |
154e51a4 LW |
547 | } |
548 | } | |
50f6e060 KS |
549 | |
550 | ||
79c1b905 KS |
551 | sub next_line |
552 | { | |
dccff43d | 553 | my $file = shift; |
79c1b905 | 554 | my ($in, $out); |
b7bcf494 | 555 | my $pre_sub_tri_graphs = 1; |
79c1b905 KS |
556 | |
557 | READ: while (not eof IN) { | |
558 | $in .= <IN>; | |
559 | chomp $in; | |
560 | next unless length $in; | |
561 | ||
562 | while (length $in) { | |
b7bcf494 | 563 | if ($pre_sub_tri_graphs) { |
bf076876 | 564 | # Preprocess all tri-graphs |
b7bcf494 PP |
565 | # including things stuck in quoted string constants. |
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 | $in =~ s/\?\?</{/g; # | ??<| {| | |
574 | $in =~ s/\?\?>/}/g; # | ??>| }| | |
575 | } | |
9efe82d3 | 576 | if ($in =~ /^\#ifdef __LANGUAGE_PASCAL__/) { |
bf076876 | 577 | # Tru64 disassembler.h evilness: mixed C and Pascal. |
9efe82d3 | 578 | while (<IN>) { |
bf076876 | 579 | last if /^\#endif/; |
9efe82d3 | 580 | } |
bf076876 | 581 | $in = ""; |
9efe82d3 JH |
582 | next READ; |
583 | } | |
37723803 | 584 | if ($in =~ /^extern inline / && # Inlined assembler. |
dccff43d | 585 | $^O eq 'linux' && $file =~ m!(?:^|/)asm/[^/]+\.h$!) { |
bf076876 AT |
586 | while (<IN>) { |
587 | last if /^}/; | |
dccff43d | 588 | } |
bf076876 | 589 | $in = ""; |
dccff43d JH |
590 | next READ; |
591 | } | |
79c1b905 KS |
592 | if ($in =~ s/\\$//) { # \-newline |
593 | $out .= ' '; | |
594 | next READ; | |
595 | } elsif ($in =~ s/^([^"'\\\/]+)//) { # Passthrough | |
596 | $out .= $1; | |
597 | } elsif ($in =~ s/^(\\.)//) { # \... | |
598 | $out .= $1; | |
ab5fe4d6 KS |
599 | } elsif ($in =~ /^'/) { # '... |
600 | if ($in =~ s/^('(\\.|[^'\\])*')//) { | |
601 | $out .= $1; | |
602 | } else { | |
603 | next READ; | |
604 | } | |
605 | } elsif ($in =~ /^"/) { # "... | |
606 | if ($in =~ s/^("(\\.|[^"\\])*")//) { | |
607 | $out .= $1; | |
608 | } else { | |
609 | next READ; | |
610 | } | |
79c1b905 | 611 | } elsif ($in =~ s/^\/\/.*//) { # //... |
edf6e4ec | 612 | # fall through |
79c1b905 KS |
613 | } elsif ($in =~ m/^\/\*/) { # /*... |
614 | # C comment removal adapted from perlfaq6: | |
615 | if ($in =~ s/^\/\*[^*]*\*+([^\/*][^*]*\*+)*\///) { | |
616 | $out .= ' '; | |
617 | } else { # Incomplete /* */ | |
618 | next READ; | |
619 | } | |
620 | } elsif ($in =~ s/^(\/)//) { # /... | |
621 | $out .= $1; | |
622 | } elsif ($in =~ s/^([^\'\"\\\/]+)//) { | |
623 | $out .= $1; | |
889e303a JH |
624 | } elsif ($^O eq 'linux' && |
625 | $file =~ m!(?:^|/)linux/byteorder/pdp_endian\.h$! && | |
626 | $in =~ s!\'T KNOW!!) { | |
627 | $out =~ s!I DON$!I_DO_NOT_KNOW!; | |
79c1b905 | 628 | } else { |
917244ce AS |
629 | if ($opt_e) { |
630 | warn "Cannot parse $file:\n$in\n"; | |
631 | $bad_file{$file} = 1; | |
632 | $in = ''; | |
633 | $out = undef; | |
634 | last READ; | |
635 | } else { | |
dccff43d | 636 | die "Cannot parse:\n$in\n"; |
917244ce | 637 | } |
79c1b905 KS |
638 | } |
639 | } | |
640 | ||
edf6e4ec | 641 | last READ if $out =~ /\S/; |
79c1b905 KS |
642 | } |
643 | ||
644 | return $out; | |
645 | } | |
646 | ||
647 | ||
50f6e060 KS |
648 | # Handle recursive subdirectories without getting a grotesquely big stack. |
649 | # Could this be implemented using File::Find? | |
650 | sub next_file | |
651 | { | |
652 | my $file; | |
653 | ||
654 | while (@ARGV) { | |
655 | $file = shift @ARGV; | |
656 | ||
657 | if ($file eq '-' or -f $file or -l $file) { | |
658 | return $file; | |
659 | } elsif (-d $file) { | |
660 | if ($opt_r) { | |
661 | expand_glob($file); | |
662 | } else { | |
663 | print STDERR "Skipping directory `$file'\n"; | |
664 | } | |
1d3434b8 GS |
665 | } elsif ($opt_a) { |
666 | return $file; | |
667 | } else { | |
50f6e060 KS |
668 | print STDERR "Skipping `$file': not a file or directory\n"; |
669 | } | |
670 | } | |
671 | ||
672 | return undef; | |
673 | } | |
674 | ||
675 | ||
676 | # Put all the files in $directory into @ARGV for processing. | |
677 | sub expand_glob | |
678 | { | |
679 | my ($directory) = @_; | |
680 | ||
681 | $directory =~ s:/$::; | |
682 | ||
683 | opendir DIR, $directory; | |
684 | foreach (readdir DIR) { | |
685 | next if ($_ eq '.' or $_ eq '..'); | |
686 | ||
687 | # expand_glob() is going to be called until $ARGV[0] isn't a | |
688 | # directory; so push directories, and unshift everything else. | |
1d3434b8 GS |
689 | if (-d "$directory/$_") { push @ARGV, "$directory/$_" } |
690 | else { unshift @ARGV, "$directory/$_" } | |
50f6e060 KS |
691 | } |
692 | closedir DIR; | |
693 | } | |
694 | ||
695 | ||
696 | # Given $file, a symbolic link to a directory in the C include directory, | |
697 | # make an equivalent symbolic link in $Dest_dir, if we can figure out how. | |
698 | # Otherwise, just duplicate the file or directory. | |
699 | sub link_if_possible | |
700 | { | |
701 | my ($dirlink) = @_; | |
702 | my $target = eval 'readlink($dirlink)'; | |
703 | ||
704 | if ($target =~ m:^\.\./: or $target =~ m:^/:) { | |
705 | # The target of a parent or absolute link could leave the $Dest_dir | |
706 | # hierarchy, so let's put all of the contents of $dirlink (actually, | |
707 | # the contents of $target) into @ARGV; as a side effect down the | |
708 | # line, $dirlink will get created as an _actual_ directory. | |
709 | expand_glob($dirlink); | |
710 | } else { | |
711 | if (-l "$Dest_dir/$dirlink") { | |
712 | unlink "$Dest_dir/$dirlink" or | |
713 | print STDERR "Could not remove link $Dest_dir/$dirlink: $!\n"; | |
714 | } | |
1d3434b8 | 715 | |
50f6e060 KS |
716 | if (eval 'symlink($target, "$Dest_dir/$dirlink")') { |
717 | print "Linking $target -> $Dest_dir/$dirlink\n"; | |
718 | ||
719 | # Make sure that the link _links_ to something: | |
720 | if (! -e "$Dest_dir/$target") { | |
1d3434b8 | 721 | mkpath("$Dest_dir/$target", 0755) or |
50f6e060 KS |
722 | print STDERR "Could not create $Dest_dir/$target/\n"; |
723 | } | |
724 | } else { | |
725 | print STDERR "Could not symlink $target -> $Dest_dir/$dirlink: $!\n"; | |
726 | } | |
727 | } | |
728 | } | |
729 | ||
730 | ||
1d3434b8 GS |
731 | # Push all #included files in $file onto our stack, except for STDIN |
732 | # and files we've already processed. | |
733 | sub queue_includes_from | |
734 | { | |
735 | my ($file) = @_; | |
736 | my $line; | |
737 | ||
738 | return if ($file eq "-"); | |
739 | ||
740 | open HEADER, $file or return; | |
741 | while (defined($line = <HEADER>)) { | |
742 | while (/\\$/) { # Handle continuation lines | |
743 | chop $line; | |
744 | $line .= <HEADER>; | |
745 | } | |
746 | ||
5668511f NT |
747 | if ($line =~ /^#\s*include\s+([<"])(.*?)[>"]/) { |
748 | my ($delimiter, $new_file) = ($1, $2); | |
749 | # copy the prefix in the quote syntax (#include "x.h") case | |
750 | if ($delimiter eq q{"} && $file =~ m|^(.*)/|) { | |
751 | $new_file = "$1/$new_file"; | |
752 | } | |
753 | push(@ARGV, $new_file) unless $Is_converted{$new_file}; | |
1d3434b8 GS |
754 | } |
755 | } | |
756 | close HEADER; | |
757 | } | |
758 | ||
759 | ||
760 | # Determine include directories; $Config{usrinc} should be enough for (all | |
05d7b09c | 761 | # non-GCC?) C compilers, but gcc uses additional include directories. |
1d3434b8 GS |
762 | sub inc_dirs |
763 | { | |
11d31e40 JVD |
764 | my $from_gcc = `LC_ALL=C $Config{cc} -v 2>&1`; |
765 | if( !( $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s ) ) | |
766 | { # gcc-4+ : | |
767 | $from_gcc = `LC_ALL=C $Config{cc} -print-search-dirs 2>&1`; | |
768 | if ( !($from_gcc =~ s/^install:\s*([^\s]+[^\s\/])([\s\/]*).*$/$1\/include/s) ) | |
769 | { | |
770 | $from_gcc = ''; | |
771 | }; | |
772 | }; | |
05d7b09c | 773 | length($from_gcc) ? ($from_gcc, $from_gcc . "-fixed", $Config{usrinc}) : ($Config{usrinc}); |
1d3434b8 GS |
774 | } |
775 | ||
776 | ||
7f04632d GS |
777 | # Create "_h2ph_pre.ph", if it doesn't exist or was built by a different |
778 | # version of h2ph. | |
779 | sub build_preamble_if_necessary | |
780 | { | |
781 | # Increment $VERSION every time this function is modified: | |
8d66b3f9 | 782 | my $VERSION = 3; |
7f04632d GS |
783 | my $preamble = "$Dest_dir/_h2ph_pre.ph"; |
784 | ||
785 | # Can we skip building the preamble file? | |
786 | if (-r $preamble) { | |
787 | # Extract version number from first line of preamble: | |
788 | open PREAMBLE, $preamble or die "Cannot open $preamble: $!"; | |
789 | my $line = <PREAMBLE>; | |
790 | $line =~ /(\b\d+\b)/; | |
791 | close PREAMBLE or die "Cannot close $preamble: $!"; | |
792 | ||
793 | # Don't build preamble if a compatible preamble exists: | |
794 | return if $1 == $VERSION; | |
795 | } | |
796 | ||
797 | my (%define) = _extract_cc_defines(); | |
798 | ||
799 | open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!"; | |
ddfca5da | 800 | print PREAMBLE "# This file was created by h2ph version $VERSION\n"; |
7f04632d | 801 | |
ddfca5da JVD |
802 | foreach (sort keys %define) { |
803 | if ($opt_D) { | |
804 | print PREAMBLE "# $_=$define{$_}\n"; | |
805 | } | |
806 | if ($define{$_} =~ /^\((.*)\)$/) { | |
807 | # parenthesized value: d=(v) | |
808 | $define{$_} = $1; | |
809 | } | |
8d66b3f9 RB |
810 | if (/^(\w+)\((\w)\)$/) { |
811 | my($macro, $arg) = ($1, $2); | |
812 | my $def = $define{$_}; | |
813 | $def =~ s/$arg/\$\{$arg\}/g; | |
814 | print PREAMBLE <<DEFINE; | |
815 | unless (defined &$macro) { sub $macro(\$) { my (\$$arg) = \@_; \"$def\" } } | |
816 | ||
817 | DEFINE | |
818 | } elsif | |
819 | ($define{$_} =~ /^([+-]?(\d+)?\.\d+([eE][+-]?\d+)?)[FL]?$/) { | |
ddfca5da JVD |
820 | # float: |
821 | print PREAMBLE | |
822 | "unless (defined &$_) { sub $_() { $1 } }\n\n"; | |
823 | } elsif ($define{$_} =~ /^([+-]?\d+)U?L{0,2}$/i) { | |
824 | # integer: | |
825 | print PREAMBLE | |
826 | "unless (defined &$_) { sub $_() { $1 } }\n\n"; | |
827 | } elsif ($define{$_} =~ /^\w+$/) { | |
8d66b3f9 RB |
828 | my $def = $define{$_}; |
829 | if ($isatype{$def}) { | |
830 | print PREAMBLE | |
831 | "unless (defined &$_) { sub $_() { \"$def\" } }\n\n"; | |
832 | } else { | |
833 | print PREAMBLE | |
834 | "unless (defined &$_) { sub $_() { &$def } }\n\n"; | |
835 | } | |
ddfca5da JVD |
836 | } else { |
837 | print PREAMBLE | |
838 | "unless (defined &$_) { sub $_() { \"", | |
839 | quotemeta($define{$_}), "\" } }\n\n"; | |
840 | } | |
841 | } | |
25436194 | 842 | print PREAMBLE "\n1;\n"; # avoid 'did not return a true value' when empty |
7f04632d GS |
843 | close PREAMBLE or die "Cannot close $preamble: $!"; |
844 | } | |
845 | ||
846 | ||
847 | # %Config contains information on macros that are pre-defined by the | |
848 | # system's compiler. We need this information to make the .ph files | |
849 | # function with perl as the .h files do with cc. | |
850 | sub _extract_cc_defines | |
851 | { | |
852 | my %define; | |
fc865b05 | 853 | my $allsymbols = join " ", |
ddfca5da | 854 | @Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'}; |
7f04632d GS |
855 | |
856 | # Split compiler pre-definitions into `key=value' pairs: | |
ddfca5da JVD |
857 | while ($allsymbols =~ /([^\s]+)=((\\\s|[^\s])+)/g) { |
858 | $define{$1} = $2; | |
859 | if ($opt_D) { | |
860 | print STDERR "$_: $1 -> $2\n"; | |
861 | } | |
7f04632d GS |
862 | } |
863 | ||
864 | return %define; | |
865 | } | |
866 | ||
867 | ||
50f6e060 KS |
868 | 1; |
869 | ||
154e51a4 | 870 | ############################################################################## |
1fef88e7 JM |
871 | __END__ |
872 | ||
873 | =head1 NAME | |
874 | ||
875 | h2ph - convert .h C header files to .ph Perl header files | |
876 | ||
877 | =head1 SYNOPSIS | |
878 | ||
1d3434b8 | 879 | B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]> |
1fef88e7 JM |
880 | |
881 | =head1 DESCRIPTION | |
154e51a4 | 882 | |
1fef88e7 | 883 | I<h2ph> |
154e51a4 LW |
884 | converts any C header files specified to the corresponding Perl header file |
885 | format. | |
886 | It is most easily run while in /usr/include: | |
154e51a4 LW |
887 | |
888 | cd /usr/include; h2ph * sys/* | |
889 | ||
50f6e060 KS |
890 | or |
891 | ||
ef0ae776 JH |
892 | cd /usr/include; h2ph * sys/* arpa/* netinet/* |
893 | ||
894 | or | |
895 | ||
50f6e060 KS |
896 | cd /usr/include; h2ph -r -l . |
897 | ||
b306bf39 RS |
898 | The output files are placed in the hierarchy rooted at Perl's |
899 | architecture dependent library directory. You can specify a different | |
900 | hierarchy with a B<-d> switch. | |
901 | ||
fe14fcc3 | 902 | If run with no arguments, filters standard input to standard output. |
1fef88e7 | 903 | |
50f6e060 KS |
904 | =head1 OPTIONS |
905 | ||
906 | =over 4 | |
907 | ||
908 | =item -d destination_dir | |
909 | ||
910 | Put the resulting B<.ph> files beneath B<destination_dir>, instead of | |
c561b895 | 911 | beneath the default Perl library location (C<$Config{'installsitearch'}>). |
50f6e060 KS |
912 | |
913 | =item -r | |
914 | ||
915 | Run recursively; if any of B<headerfiles> are directories, then run I<h2ph> | |
1d3434b8 GS |
916 | on all files in those directories (and their subdirectories, etc.). B<-r> |
917 | and B<-a> are mutually exclusive. | |
918 | ||
919 | =item -a | |
920 | ||
921 | Run automagically; convert B<headerfiles>, as well as any B<.h> files | |
922 | which they include. This option will search for B<.h> files in all | |
923 | directories which your C compiler ordinarily uses. B<-a> and B<-r> are | |
924 | mutually exclusive. | |
50f6e060 KS |
925 | |
926 | =item -l | |
927 | ||
928 | Symbolic links will be replicated in the destination directory. If B<-l> | |
929 | is not specified, then links are skipped over. | |
930 | ||
931 | =item -h | |
932 | ||
933 | Put ``hints'' in the .ph files which will help in locating problems with | |
934 | I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax | |
935 | errors, instead of the cryptic | |
936 | ||
937 | [ some error condition ] at (eval mmm) line nnn | |
938 | ||
939 | you will see the slightly more helpful | |
940 | ||
941 | [ some error condition ] at filename.ph line nnn | |
942 | ||
943 | However, the B<.ph> files almost double in size when built using B<-h>. | |
944 | ||
1d3434b8 GS |
945 | =item -D |
946 | ||
947 | Include the code from the B<.h> file as a comment in the B<.ph> file. | |
948 | This is primarily used for debugging I<h2ph>. | |
949 | ||
7f04632d GS |
950 | =item -Q |
951 | ||
952 | ``Quiet'' mode; don't print out the names of the files being converted. | |
953 | ||
50f6e060 KS |
954 | =back |
955 | ||
1fef88e7 JM |
956 | =head1 ENVIRONMENT |
957 | ||
154e51a4 | 958 | No environment variables are used. |
1fef88e7 JM |
959 | |
960 | =head1 FILES | |
961 | ||
962 | /usr/include/*.h | |
963 | /usr/include/sys/*.h | |
964 | ||
154e51a4 | 965 | etc. |
1fef88e7 JM |
966 | |
967 | =head1 AUTHOR | |
968 | ||
154e51a4 | 969 | Larry Wall |
1fef88e7 JM |
970 | |
971 | =head1 SEE ALSO | |
972 | ||
154e51a4 | 973 | perl(1) |
1fef88e7 JM |
974 | |
975 | =head1 DIAGNOSTICS | |
976 | ||
154e51a4 | 977 | The usual warnings if it can't read or write the files involved. |
1fef88e7 JM |
978 | |
979 | =head1 BUGS | |
980 | ||
154e51a4 | 981 | Doesn't construct the %sizeof array for you. |
1fef88e7 | 982 | |
154e51a4 LW |
983 | It doesn't handle all C constructs, but it does attempt to isolate |
984 | definitions inside evals so that you can get at the definitions | |
985 | that it can translate. | |
1fef88e7 | 986 | |
154e51a4 LW |
987 | It's only intended as a rough tool. |
988 | You may need to dicker with the files produced. | |
1fef88e7 | 989 | |
7f04632d GS |
990 | You have to run this program by hand; it's not run as part of the Perl |
991 | installation. | |
992 | ||
993 | Doesn't handle complicated expressions built piecemeal, a la: | |
994 | ||
995 | enum { | |
ddfca5da JVD |
996 | FIRST_VALUE, |
997 | SECOND_VALUE, | |
7f04632d | 998 | #ifdef ABC |
ddfca5da | 999 | THIRD_VALUE |
7f04632d GS |
1000 | #endif |
1001 | }; | |
1002 | ||
1003 | Doesn't necessarily locate all of your C compiler's internally-defined | |
1004 | symbols. | |
1005 | ||
1fef88e7 JM |
1006 | =cut |
1007 | ||
154e51a4 | 1008 | !NO!SUBS! |
4633a7c4 LW |
1009 | |
1010 | close OUT or die "Can't close $file: $!"; | |
1011 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
1012 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; | |
8a5546a1 | 1013 | chdir $origdir; |